Commit | Line | Data |
---|---|---|
88b12a9a FMH |
1 | /* |
2 | comedi/drivers/cb_pcidas64.c | |
3 | This is a driver for the ComputerBoards/MeasurementComputing PCI-DAS | |
4 | 64xx, 60xx, and 4020 cards. | |
5 | ||
6 | Author: Frank Mori Hess <fmhess@users.sourceforge.net> | |
7 | Copyright (C) 2001, 2002 Frank Mori Hess | |
8 | ||
9 | Thanks also go to the following people: | |
10 | ||
11 | Steve Rosenbluth, for providing the source code for | |
12 | his pci-das6402 driver, and source code for working QNX pci-6402 | |
13 | drivers by Greg Laird and Mariusz Bogacz. None of the code was | |
14 | used directly here, but it was useful as an additional source of | |
15 | documentation on how to program the boards. | |
16 | ||
17 | John Sims, for much testing and feedback on pcidas-4020 support. | |
18 | ||
19 | COMEDI - Linux Control and Measurement Device Interface | |
20 | Copyright (C) 1997-8 David A. Schleef <ds@schleef.org> | |
21 | ||
22 | This program is free software; you can redistribute it and/or modify | |
23 | it under the terms of the GNU General Public License as published by | |
24 | the Free Software Foundation; either version 2 of the License, or | |
25 | (at your option) any later version. | |
26 | ||
27 | This program is distributed in the hope that it will be useful, | |
28 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
29 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
30 | GNU General Public License for more details. | |
31 | ||
32 | You should have received a copy of the GNU General Public License | |
33 | along with this program; if not, write to the Free Software | |
34 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
35 | ||
36 | ************************************************************************/ | |
37 | ||
38 | /* | |
39 | ||
40 | Driver: cb_pcidas64 | |
41 | Description: MeasurementComputing PCI-DAS64xx, 60XX, and 4020 series with the PLX 9080 PCI controller | |
42 | Author: Frank Mori Hess <fmhess@users.sourceforge.net> | |
43 | Status: works | |
44 | Updated: 2002-10-09 | |
45 | Devices: [Measurement Computing] PCI-DAS6402/16 (cb_pcidas64), | |
46 | PCI-DAS6402/12, PCI-DAS64/M1/16, PCI-DAS64/M2/16, | |
47 | PCI-DAS64/M3/16, PCI-DAS6402/16/JR, PCI-DAS64/M1/16/JR, | |
48 | PCI-DAS64/M2/16/JR, PCI-DAS64/M3/16/JR, PCI-DAS64/M1/14, | |
49 | PCI-DAS64/M2/14, PCI-DAS64/M3/14, PCI-DAS6013, PCI-DAS6014, | |
50 | PCI-DAS6023, PCI-DAS6025, PCI-DAS6030, | |
51 | PCI-DAS6031, PCI-DAS6032, PCI-DAS6033, PCI-DAS6034, | |
52 | PCI-DAS6035, PCI-DAS6036, PCI-DAS6040, PCI-DAS6052, | |
53 | PCI-DAS6070, PCI-DAS6071, PCI-DAS4020/12 | |
54 | ||
55 | Configuration options: | |
56 | [0] - PCI bus of device (optional) | |
57 | [1] - PCI slot of device (optional) | |
58 | ||
59 | These boards may be autocalibrated with the comedi_calibrate utility. | |
60 | ||
61 | To select the bnc trigger input on the 4020 (instead of the dio input), | |
62 | specify a nonzero channel in the chanspec. If you wish to use an external | |
63 | master clock on the 4020, you may do so by setting the scan_begin_src | |
64 | to TRIG_OTHER, and using an INSN_CONFIG_TIMER_1 configuration insn | |
65 | to configure the divisor to use for the external clock. | |
66 | ||
67 | Some devices are not identified because the PCI device IDs are not yet | |
68 | known. If you have such a board, please file a bug report at | |
69 | https://bugs.comedi.org. | |
70 | ||
71 | */ | |
72 | ||
73 | /* | |
74 | ||
75 | TODO: | |
76 | make it return error if user attempts an ai command that uses the | |
77 | external queue, and an ao command simultaneously | |
78 | user counter subdevice | |
79 | there are a number of boards this driver will support when they are | |
80 | fully released, but does not yet since the pci device id numbers | |
81 | are not yet available. | |
82 | support prescaled 100khz clock for slow pacing (not available on 6000 series?) | |
83 | make ao fifo size adjustable like ai fifo | |
84 | */ | |
85 | ||
86 | #include "../comedidev.h" | |
87 | #include <linux/delay.h> | |
70265d24 | 88 | #include <linux/interrupt.h> |
88b12a9a | 89 | |
88b12a9a FMH |
90 | #include "8253.h" |
91 | #include "8255.h" | |
92 | #include "plx9080.h" | |
93 | #include "comedi_fc.h" | |
94 | ||
9ef4dea6 BP |
95 | #undef PCIDAS64_DEBUG /* disable debugging code */ |
96 | /* #define PCIDAS64_DEBUG enable debugging code */ | |
88b12a9a FMH |
97 | |
98 | #ifdef PCIDAS64_DEBUG | |
5f74ea14 | 99 | #define DEBUG_PRINT(format, args...) printk(format , ## args) |
88b12a9a FMH |
100 | #else |
101 | #define DEBUG_PRINT(format, args...) | |
102 | #endif | |
103 | ||
9ef4dea6 | 104 | #define TIMER_BASE 25 /* 40MHz master clock */ |
25985edc | 105 | #define PRESCALED_TIMER_BASE 10000 /* 100kHz 'prescaled' clock for slow acquisition, maybe I'll support this someday */ |
88b12a9a FMH |
106 | #define DMA_BUFFER_SIZE 0x1000 |
107 | ||
558587e2 GKH |
108 | #define PCI_VENDOR_ID_COMPUTERBOARDS 0x1307 |
109 | ||
88b12a9a FMH |
110 | /* maximum value that can be loaded into board's 24-bit counters*/ |
111 | static const int max_counter_value = 0xffffff; | |
112 | ||
113 | /* PCI-DAS64xxx base addresses */ | |
114 | ||
9ef4dea6 | 115 | /* indices of base address regions */ |
88b12a9a FMH |
116 | enum base_address_regions { |
117 | PLX9080_BADDRINDEX = 0, | |
118 | MAIN_BADDRINDEX = 2, | |
119 | DIO_COUNTER_BADDRINDEX = 3, | |
120 | }; | |
121 | ||
681d335a | 122 | /* devpriv->main_iobase registers */ |
88b12a9a | 123 | enum write_only_registers { |
9ef4dea6 BP |
124 | INTR_ENABLE_REG = 0x0, /* interrupt enable register */ |
125 | HW_CONFIG_REG = 0x2, /* hardware config register */ | |
88b12a9a FMH |
126 | DAQ_SYNC_REG = 0xc, |
127 | DAQ_ATRIG_LOW_4020_REG = 0xc, | |
9ef4dea6 BP |
128 | ADC_CONTROL0_REG = 0x10, /* adc control register 0 */ |
129 | ADC_CONTROL1_REG = 0x12, /* adc control register 1 */ | |
88b12a9a | 130 | CALIBRATION_REG = 0x14, |
9ef4dea6 BP |
131 | ADC_SAMPLE_INTERVAL_LOWER_REG = 0x16, /* lower 16 bits of adc sample interval counter */ |
132 | ADC_SAMPLE_INTERVAL_UPPER_REG = 0x18, /* upper 8 bits of adc sample interval counter */ | |
133 | ADC_DELAY_INTERVAL_LOWER_REG = 0x1a, /* lower 16 bits of delay interval counter */ | |
134 | ADC_DELAY_INTERVAL_UPPER_REG = 0x1c, /* upper 8 bits of delay interval counter */ | |
135 | ADC_COUNT_LOWER_REG = 0x1e, /* lower 16 bits of hardware conversion/scan counter */ | |
136 | ADC_COUNT_UPPER_REG = 0x20, /* upper 8 bits of hardware conversion/scan counter */ | |
25985edc | 137 | ADC_START_REG = 0x22, /* software trigger to start acquisition */ |
9ef4dea6 BP |
138 | ADC_CONVERT_REG = 0x24, /* initiates single conversion */ |
139 | ADC_QUEUE_CLEAR_REG = 0x26, /* clears adc queue */ | |
140 | ADC_QUEUE_LOAD_REG = 0x28, /* loads adc queue */ | |
88b12a9a | 141 | ADC_BUFFER_CLEAR_REG = 0x2a, |
9ef4dea6 BP |
142 | ADC_QUEUE_HIGH_REG = 0x2c, /* high channel for internal queue, use adc_chan_bits() inline above */ |
143 | DAC_CONTROL0_REG = 0x50, /* dac control register 0 */ | |
144 | DAC_CONTROL1_REG = 0x52, /* dac control register 0 */ | |
145 | DAC_SAMPLE_INTERVAL_LOWER_REG = 0x54, /* lower 16 bits of dac sample interval counter */ | |
146 | DAC_SAMPLE_INTERVAL_UPPER_REG = 0x56, /* upper 8 bits of dac sample interval counter */ | |
88b12a9a FMH |
147 | DAC_SELECT_REG = 0x60, |
148 | DAC_START_REG = 0x64, | |
9ef4dea6 | 149 | DAC_BUFFER_CLEAR_REG = 0x66, /* clear dac buffer */ |
88b12a9a FMH |
150 | }; |
151 | static inline unsigned int dac_convert_reg(unsigned int channel) | |
152 | { | |
153 | return 0x70 + (2 * (channel & 0x1)); | |
154 | } | |
0a85b6f0 | 155 | |
88b12a9a FMH |
156 | static inline unsigned int dac_lsb_4020_reg(unsigned int channel) |
157 | { | |
158 | return 0x70 + (4 * (channel & 0x1)); | |
159 | } | |
0a85b6f0 | 160 | |
88b12a9a FMH |
161 | static inline unsigned int dac_msb_4020_reg(unsigned int channel) |
162 | { | |
163 | return 0x72 + (4 * (channel & 0x1)); | |
164 | } | |
165 | ||
166 | enum read_only_registers { | |
9ef4dea6 | 167 | HW_STATUS_REG = 0x0, /* hardware status register, reading this apparently clears pending interrupts as well */ |
88b12a9a FMH |
168 | PIPE1_READ_REG = 0x4, |
169 | ADC_READ_PNTR_REG = 0x8, | |
170 | LOWER_XFER_REG = 0x10, | |
171 | ADC_WRITE_PNTR_REG = 0xc, | |
172 | PREPOST_REG = 0x14, | |
173 | }; | |
174 | ||
175 | enum read_write_registers { | |
9ef4dea6 BP |
176 | I8255_4020_REG = 0x48, /* 8255 offset, for 4020 only */ |
177 | ADC_QUEUE_FIFO_REG = 0x100, /* external channel/gain queue, uses same bits as ADC_QUEUE_LOAD_REG */ | |
88b12a9a FMH |
178 | ADC_FIFO_REG = 0x200, /* adc data fifo */ |
179 | DAC_FIFO_REG = 0x300, /* dac data fifo, has weird interactions with external channel queue */ | |
180 | }; | |
181 | ||
681d335a | 182 | /* devpriv->dio_counter_iobase registers */ |
88b12a9a FMH |
183 | enum dio_counter_registers { |
184 | DIO_8255_OFFSET = 0x0, | |
185 | DO_REG = 0x20, | |
186 | DI_REG = 0x28, | |
187 | DIO_DIRECTION_60XX_REG = 0x40, | |
188 | DIO_DATA_60XX_REG = 0x48, | |
189 | }; | |
190 | ||
9ef4dea6 | 191 | /* bit definitions for write-only registers */ |
88b12a9a FMH |
192 | |
193 | enum intr_enable_contents { | |
9ef4dea6 BP |
194 | ADC_INTR_SRC_MASK = 0x3, /* bits that set adc interrupt source */ |
195 | ADC_INTR_QFULL_BITS = 0x0, /* interrupt fifo quater full */ | |
196 | ADC_INTR_EOC_BITS = 0x1, /* interrupt end of conversion */ | |
197 | ADC_INTR_EOSCAN_BITS = 0x2, /* interrupt end of scan */ | |
198 | ADC_INTR_EOSEQ_BITS = 0x3, /* interrupt end of sequence (probably wont use this it's pretty fancy) */ | |
199 | EN_ADC_INTR_SRC_BIT = 0x4, /* enable adc interrupt source */ | |
25985edc | 200 | EN_ADC_DONE_INTR_BIT = 0x8, /* enable adc acquisition done interrupt */ |
88b12a9a FMH |
201 | DAC_INTR_SRC_MASK = 0x30, |
202 | DAC_INTR_QEMPTY_BITS = 0x0, | |
203 | DAC_INTR_HIGH_CHAN_BITS = 0x10, | |
9ef4dea6 | 204 | EN_DAC_INTR_SRC_BIT = 0x40, /* enable dac interrupt source */ |
88b12a9a | 205 | EN_DAC_DONE_INTR_BIT = 0x80, |
9ef4dea6 BP |
206 | EN_ADC_ACTIVE_INTR_BIT = 0x200, /* enable adc active interrupt */ |
207 | EN_ADC_STOP_INTR_BIT = 0x400, /* enable adc stop trigger interrupt */ | |
208 | EN_DAC_ACTIVE_INTR_BIT = 0x800, /* enable dac active interrupt */ | |
209 | EN_DAC_UNDERRUN_BIT = 0x4000, /* enable dac underrun status bit */ | |
210 | EN_ADC_OVERRUN_BIT = 0x8000, /* enable adc overrun status bit */ | |
88b12a9a FMH |
211 | }; |
212 | ||
213 | enum hw_config_contents { | |
9ef4dea6 BP |
214 | MASTER_CLOCK_4020_MASK = 0x3, /* bits that specify master clock source for 4020 */ |
215 | INTERNAL_CLOCK_4020_BITS = 0x1, /* use 40 MHz internal master clock for 4020 */ | |
216 | BNC_CLOCK_4020_BITS = 0x2, /* use BNC input for master clock */ | |
217 | EXT_CLOCK_4020_BITS = 0x3, /* use dio input for master clock */ | |
218 | EXT_QUEUE_BIT = 0x200, /* use external channel/gain queue (more versatile than internal queue) */ | |
219 | SLOW_DAC_BIT = 0x400, /* use 225 nanosec strobe when loading dac instead of 50 nanosec */ | |
220 | HW_CONFIG_DUMMY_BITS = 0x2000, /* bit with unknown function yet given as default value in pci-das64 manual */ | |
221 | DMA_CH_SELECT_BIT = 0x8000, /* bit selects channels 1/0 for analog input/output, otherwise 0/1 */ | |
222 | FIFO_SIZE_REG = 0x4, /* allows adjustment of fifo sizes */ | |
223 | DAC_FIFO_SIZE_MASK = 0xff00, /* bits that set dac fifo size */ | |
88b12a9a FMH |
224 | DAC_FIFO_BITS = 0xf800, /* 8k sample ao fifo */ |
225 | }; | |
226 | #define DAC_FIFO_SIZE 0x2000 | |
227 | ||
228 | enum daq_atrig_low_4020_contents { | |
9ef4dea6 BP |
229 | EXT_AGATE_BNC_BIT = 0x8000, /* use trig/ext clk bnc input for analog gate signal */ |
230 | EXT_STOP_TRIG_BNC_BIT = 0x4000, /* use trig/ext clk bnc input for external stop trigger signal */ | |
231 | EXT_START_TRIG_BNC_BIT = 0x2000, /* use trig/ext clk bnc input for external start trigger signal */ | |
88b12a9a FMH |
232 | }; |
233 | static inline uint16_t analog_trig_low_threshold_bits(uint16_t threshold) | |
234 | { | |
235 | return threshold & 0xfff; | |
236 | } | |
237 | ||
238 | enum adc_control0_contents { | |
9ef4dea6 BP |
239 | ADC_GATE_SRC_MASK = 0x3, /* bits that select gate */ |
240 | ADC_SOFT_GATE_BITS = 0x1, /* software gate */ | |
241 | ADC_EXT_GATE_BITS = 0x2, /* external digital gate */ | |
242 | ADC_ANALOG_GATE_BITS = 0x3, /* analog level gate */ | |
243 | ADC_GATE_LEVEL_BIT = 0x4, /* level-sensitive gate (for digital) */ | |
244 | ADC_GATE_POLARITY_BIT = 0x8, /* gate active low */ | |
88b12a9a FMH |
245 | ADC_START_TRIG_SOFT_BITS = 0x10, |
246 | ADC_START_TRIG_EXT_BITS = 0x20, | |
247 | ADC_START_TRIG_ANALOG_BITS = 0x30, | |
248 | ADC_START_TRIG_MASK = 0x30, | |
9ef4dea6 BP |
249 | ADC_START_TRIG_FALLING_BIT = 0x40, /* trig 1 uses falling edge */ |
250 | ADC_EXT_CONV_FALLING_BIT = 0x800, /* external pacing uses falling edge */ | |
251 | ADC_SAMPLE_COUNTER_EN_BIT = 0x1000, /* enable hardware scan counter */ | |
252 | ADC_DMA_DISABLE_BIT = 0x4000, /* disables dma */ | |
253 | ADC_ENABLE_BIT = 0x8000, /* master adc enable */ | |
88b12a9a FMH |
254 | }; |
255 | ||
256 | enum adc_control1_contents { | |
9ef4dea6 | 257 | ADC_QUEUE_CONFIG_BIT = 0x1, /* should be set for boards with > 16 channels */ |
88b12a9a FMH |
258 | CONVERT_POLARITY_BIT = 0x10, |
259 | EOC_POLARITY_BIT = 0x20, | |
9ef4dea6 BP |
260 | ADC_SW_GATE_BIT = 0x40, /* software gate of adc */ |
261 | ADC_DITHER_BIT = 0x200, /* turn on extra noise for dithering */ | |
88b12a9a FMH |
262 | RETRIGGER_BIT = 0x800, |
263 | ADC_LO_CHANNEL_4020_MASK = 0x300, | |
264 | ADC_HI_CHANNEL_4020_MASK = 0xc00, | |
9ef4dea6 BP |
265 | TWO_CHANNEL_4020_BITS = 0x1000, /* two channel mode for 4020 */ |
266 | FOUR_CHANNEL_4020_BITS = 0x2000, /* four channel mode for 4020 */ | |
88b12a9a FMH |
267 | CHANNEL_MODE_4020_MASK = 0x3000, |
268 | ADC_MODE_MASK = 0xf000, | |
269 | }; | |
270 | static inline uint16_t adc_lo_chan_4020_bits(unsigned int channel) | |
271 | { | |
272 | return (channel & 0x3) << 8; | |
273 | }; | |
0a85b6f0 | 274 | |
88b12a9a FMH |
275 | static inline uint16_t adc_hi_chan_4020_bits(unsigned int channel) |
276 | { | |
277 | return (channel & 0x3) << 10; | |
278 | }; | |
0a85b6f0 | 279 | |
88b12a9a FMH |
280 | static inline uint16_t adc_mode_bits(unsigned int mode) |
281 | { | |
282 | return (mode & 0xf) << 12; | |
283 | }; | |
284 | ||
285 | enum calibration_contents { | |
286 | SELECT_8800_BIT = 0x1, | |
287 | SELECT_8402_64XX_BIT = 0x2, | |
288 | SELECT_1590_60XX_BIT = 0x2, | |
9ef4dea6 | 289 | CAL_EN_64XX_BIT = 0x40, /* calibration enable for 64xx series */ |
88b12a9a FMH |
290 | SERIAL_DATA_IN_BIT = 0x80, |
291 | SERIAL_CLOCK_BIT = 0x100, | |
9ef4dea6 | 292 | CAL_EN_60XX_BIT = 0x200, /* calibration enable for 60xx series */ |
88b12a9a FMH |
293 | CAL_GAIN_BIT = 0x800, |
294 | }; | |
295 | /* calibration sources for 6025 are: | |
296 | * 0 : ground | |
297 | * 1 : 10V | |
298 | * 2 : 5V | |
299 | * 3 : 0.5V | |
300 | * 4 : 0.05V | |
301 | * 5 : ground | |
302 | * 6 : dac channel 0 | |
303 | * 7 : dac channel 1 | |
304 | */ | |
305 | static inline uint16_t adc_src_bits(unsigned int source) | |
306 | { | |
307 | return (source & 0xf) << 3; | |
308 | }; | |
309 | ||
310 | static inline uint16_t adc_convert_chan_4020_bits(unsigned int channel) | |
311 | { | |
312 | return (channel & 0x3) << 8; | |
313 | }; | |
314 | ||
315 | enum adc_queue_load_contents { | |
9ef4dea6 BP |
316 | UNIP_BIT = 0x800, /* unipolar/bipolar bit */ |
317 | ADC_SE_DIFF_BIT = 0x1000, /* single-ended/ differential bit */ | |
318 | ADC_COMMON_BIT = 0x2000, /* non-referenced single-ended (common-mode input) */ | |
319 | QUEUE_EOSEQ_BIT = 0x4000, /* queue end of sequence */ | |
320 | QUEUE_EOSCAN_BIT = 0x8000, /* queue end of scan */ | |
88b12a9a FMH |
321 | }; |
322 | static inline uint16_t adc_chan_bits(unsigned int channel) | |
323 | { | |
324 | return channel & 0x3f; | |
325 | }; | |
326 | ||
327 | enum dac_control0_contents { | |
9ef4dea6 | 328 | DAC_ENABLE_BIT = 0x8000, /* dac controller enable bit */ |
88b12a9a FMH |
329 | DAC_CYCLIC_STOP_BIT = 0x4000, |
330 | DAC_WAVEFORM_MODE_BIT = 0x100, | |
331 | DAC_EXT_UPDATE_FALLING_BIT = 0x80, | |
332 | DAC_EXT_UPDATE_ENABLE_BIT = 0x40, | |
333 | WAVEFORM_TRIG_MASK = 0x30, | |
334 | WAVEFORM_TRIG_DISABLED_BITS = 0x0, | |
335 | WAVEFORM_TRIG_SOFT_BITS = 0x10, | |
336 | WAVEFORM_TRIG_EXT_BITS = 0x20, | |
337 | WAVEFORM_TRIG_ADC1_BITS = 0x30, | |
338 | WAVEFORM_TRIG_FALLING_BIT = 0x8, | |
339 | WAVEFORM_GATE_LEVEL_BIT = 0x4, | |
340 | WAVEFORM_GATE_ENABLE_BIT = 0x2, | |
341 | WAVEFORM_GATE_SELECT_BIT = 0x1, | |
342 | }; | |
343 | ||
344 | enum dac_control1_contents { | |
345 | DAC_WRITE_POLARITY_BIT = 0x800, /* board-dependent setting */ | |
346 | DAC1_EXT_REF_BIT = 0x200, | |
347 | DAC0_EXT_REF_BIT = 0x100, | |
9ef4dea6 | 348 | DAC_OUTPUT_ENABLE_BIT = 0x80, /* dac output enable bit */ |
88b12a9a FMH |
349 | DAC_UPDATE_POLARITY_BIT = 0x40, /* board-dependent setting */ |
350 | DAC_SW_GATE_BIT = 0x20, | |
351 | DAC1_UNIPOLAR_BIT = 0x8, | |
352 | DAC0_UNIPOLAR_BIT = 0x2, | |
353 | }; | |
354 | ||
9ef4dea6 | 355 | /* bit definitions for read-only registers */ |
88b12a9a FMH |
356 | enum hw_status_contents { |
357 | DAC_UNDERRUN_BIT = 0x1, | |
358 | ADC_OVERRUN_BIT = 0x2, | |
359 | DAC_ACTIVE_BIT = 0x4, | |
360 | ADC_ACTIVE_BIT = 0x8, | |
361 | DAC_INTR_PENDING_BIT = 0x10, | |
362 | ADC_INTR_PENDING_BIT = 0x20, | |
363 | DAC_DONE_BIT = 0x40, | |
364 | ADC_DONE_BIT = 0x80, | |
365 | EXT_INTR_PENDING_BIT = 0x100, | |
366 | ADC_STOP_BIT = 0x200, | |
367 | }; | |
368 | static inline uint16_t pipe_full_bits(uint16_t hw_status_bits) | |
369 | { | |
370 | return (hw_status_bits >> 10) & 0x3; | |
371 | }; | |
372 | ||
373 | static inline unsigned int dma_chain_flag_bits(uint16_t prepost_bits) | |
374 | { | |
375 | return (prepost_bits >> 6) & 0x3; | |
376 | } | |
0a85b6f0 | 377 | |
88b12a9a FMH |
378 | static inline unsigned int adc_upper_read_ptr_code(uint16_t prepost_bits) |
379 | { | |
380 | return (prepost_bits >> 12) & 0x3; | |
381 | } | |
0a85b6f0 | 382 | |
88b12a9a FMH |
383 | static inline unsigned int adc_upper_write_ptr_code(uint16_t prepost_bits) |
384 | { | |
385 | return (prepost_bits >> 14) & 0x3; | |
386 | } | |
387 | ||
9ef4dea6 | 388 | /* I2C addresses for 4020 */ |
88b12a9a FMH |
389 | enum i2c_addresses { |
390 | RANGE_CAL_I2C_ADDR = 0x20, | |
391 | CALDAC0_I2C_ADDR = 0xc, | |
392 | CALDAC1_I2C_ADDR = 0xd, | |
393 | }; | |
394 | ||
395 | enum range_cal_i2c_contents { | |
9ef4dea6 BP |
396 | ADC_SRC_4020_MASK = 0x70, /* bits that set what source the adc converter measures */ |
397 | BNC_TRIG_THRESHOLD_0V_BIT = 0x80, /* make bnc trig/ext clock threshold 0V instead of 2.5V */ | |
88b12a9a FMH |
398 | }; |
399 | static inline uint8_t adc_src_4020_bits(unsigned int source) | |
400 | { | |
401 | return (source << 4) & ADC_SRC_4020_MASK; | |
402 | }; | |
0a85b6f0 | 403 | |
88b12a9a FMH |
404 | static inline uint8_t attenuate_bit(unsigned int channel) |
405 | { | |
9ef4dea6 | 406 | /* attenuate channel (+-5V input range) */ |
88b12a9a FMH |
407 | return 1 << (channel & 0x3); |
408 | }; | |
409 | ||
9ef4dea6 | 410 | /* analog input ranges for 64xx boards */ |
9ced1de6 | 411 | static const struct comedi_lrange ai_ranges_64xx = { |
88b12a9a FMH |
412 | 8, |
413 | { | |
0a85b6f0 MT |
414 | BIP_RANGE(10), |
415 | BIP_RANGE(5), | |
416 | BIP_RANGE(2.5), | |
417 | BIP_RANGE(1.25), | |
418 | UNI_RANGE(10), | |
419 | UNI_RANGE(5), | |
420 | UNI_RANGE(2.5), | |
421 | UNI_RANGE(1.25) | |
422 | } | |
88b12a9a FMH |
423 | }; |
424 | ||
425 | /* analog input ranges for 60xx boards */ | |
9ced1de6 | 426 | static const struct comedi_lrange ai_ranges_60xx = { |
88b12a9a FMH |
427 | 4, |
428 | { | |
0a85b6f0 MT |
429 | BIP_RANGE(10), |
430 | BIP_RANGE(5), | |
431 | BIP_RANGE(0.5), | |
432 | BIP_RANGE(0.05), | |
433 | } | |
88b12a9a FMH |
434 | }; |
435 | ||
436 | /* analog input ranges for 6030, etc boards */ | |
9ced1de6 | 437 | static const struct comedi_lrange ai_ranges_6030 = { |
88b12a9a FMH |
438 | 14, |
439 | { | |
0a85b6f0 MT |
440 | BIP_RANGE(10), |
441 | BIP_RANGE(5), | |
442 | BIP_RANGE(2), | |
443 | BIP_RANGE(1), | |
444 | BIP_RANGE(0.5), | |
445 | BIP_RANGE(0.2), | |
446 | BIP_RANGE(0.1), | |
447 | UNI_RANGE(10), | |
448 | UNI_RANGE(5), | |
449 | UNI_RANGE(2), | |
450 | UNI_RANGE(1), | |
451 | UNI_RANGE(0.5), | |
452 | UNI_RANGE(0.2), | |
453 | UNI_RANGE(0.1), | |
454 | } | |
88b12a9a FMH |
455 | }; |
456 | ||
457 | /* analog input ranges for 6052, etc boards */ | |
9ced1de6 | 458 | static const struct comedi_lrange ai_ranges_6052 = { |
88b12a9a FMH |
459 | 15, |
460 | { | |
0a85b6f0 MT |
461 | BIP_RANGE(10), |
462 | BIP_RANGE(5), | |
463 | BIP_RANGE(2.5), | |
464 | BIP_RANGE(1), | |
465 | BIP_RANGE(0.5), | |
466 | BIP_RANGE(0.25), | |
467 | BIP_RANGE(0.1), | |
468 | BIP_RANGE(0.05), | |
469 | UNI_RANGE(10), | |
470 | UNI_RANGE(5), | |
471 | UNI_RANGE(2), | |
472 | UNI_RANGE(1), | |
473 | UNI_RANGE(0.5), | |
474 | UNI_RANGE(0.2), | |
475 | UNI_RANGE(0.1), | |
476 | } | |
88b12a9a FMH |
477 | }; |
478 | ||
9ef4dea6 | 479 | /* analog input ranges for 4020 board */ |
9ced1de6 | 480 | static const struct comedi_lrange ai_ranges_4020 = { |
88b12a9a FMH |
481 | 2, |
482 | { | |
0a85b6f0 MT |
483 | BIP_RANGE(5), |
484 | BIP_RANGE(1), | |
485 | } | |
88b12a9a FMH |
486 | }; |
487 | ||
9ef4dea6 | 488 | /* analog output ranges */ |
9ced1de6 | 489 | static const struct comedi_lrange ao_ranges_64xx = { |
88b12a9a FMH |
490 | 4, |
491 | { | |
0a85b6f0 MT |
492 | BIP_RANGE(5), |
493 | BIP_RANGE(10), | |
494 | UNI_RANGE(5), | |
495 | UNI_RANGE(10), | |
496 | } | |
88b12a9a | 497 | }; |
0a85b6f0 | 498 | |
88b12a9a FMH |
499 | static const int ao_range_code_64xx[] = { |
500 | 0x0, | |
501 | 0x1, | |
502 | 0x2, | |
503 | 0x3, | |
504 | }; | |
505 | ||
9ced1de6 | 506 | static const struct comedi_lrange ao_ranges_60xx = { |
88b12a9a FMH |
507 | 1, |
508 | { | |
0a85b6f0 MT |
509 | BIP_RANGE(10), |
510 | } | |
88b12a9a | 511 | }; |
0a85b6f0 | 512 | |
88b12a9a FMH |
513 | static const int ao_range_code_60xx[] = { |
514 | 0x0, | |
515 | }; | |
516 | ||
9ced1de6 | 517 | static const struct comedi_lrange ao_ranges_6030 = { |
88b12a9a FMH |
518 | 2, |
519 | { | |
0a85b6f0 MT |
520 | BIP_RANGE(10), |
521 | UNI_RANGE(10), | |
522 | } | |
88b12a9a | 523 | }; |
0a85b6f0 | 524 | |
88b12a9a FMH |
525 | static const int ao_range_code_6030[] = { |
526 | 0x0, | |
527 | 0x2, | |
528 | }; | |
529 | ||
9ced1de6 | 530 | static const struct comedi_lrange ao_ranges_4020 = { |
88b12a9a FMH |
531 | 2, |
532 | { | |
0a85b6f0 MT |
533 | BIP_RANGE(5), |
534 | BIP_RANGE(10), | |
535 | } | |
88b12a9a | 536 | }; |
0a85b6f0 | 537 | |
88b12a9a FMH |
538 | static const int ao_range_code_4020[] = { |
539 | 0x1, | |
540 | 0x0, | |
541 | }; | |
542 | ||
543 | enum register_layout { | |
544 | LAYOUT_60XX, | |
545 | LAYOUT_64XX, | |
546 | LAYOUT_4020, | |
547 | }; | |
548 | ||
675935dd | 549 | struct hw_fifo_info { |
88b12a9a FMH |
550 | unsigned int num_segments; |
551 | unsigned int max_segment_length; | |
552 | unsigned int sample_packing_ratio; | |
553 | uint16_t fifo_size_reg_mask; | |
675935dd | 554 | }; |
88b12a9a | 555 | |
222ab1bc | 556 | struct pcidas64_board { |
88b12a9a | 557 | const char *name; |
9ef4dea6 BP |
558 | int device_id; /* pci device id */ |
559 | int ai_se_chans; /* number of ai inputs in single-ended mode */ | |
560 | int ai_bits; /* analog input resolution */ | |
561 | int ai_speed; /* fastest conversion period in ns */ | |
9ced1de6 | 562 | const struct comedi_lrange *ai_range_table; |
9ef4dea6 BP |
563 | int ao_nchan; /* number of analog out channels */ |
564 | int ao_bits; /* analog output resolution */ | |
565 | int ao_scan_speed; /* analog output speed (for a scan, not conversion) */ | |
9ced1de6 | 566 | const struct comedi_lrange *ao_range_table; |
88b12a9a | 567 | const int *ao_range_code; |
675935dd | 568 | const struct hw_fifo_info *const ai_fifo; |
9ef4dea6 | 569 | enum register_layout layout; /* different board families have slightly different registers */ |
88b12a9a | 570 | unsigned has_8255:1; |
222ab1bc | 571 | }; |
88b12a9a | 572 | |
675935dd | 573 | static const struct hw_fifo_info ai_fifo_4020 = { |
68c3dbff BP |
574 | .num_segments = 2, |
575 | .max_segment_length = 0x8000, | |
576 | .sample_packing_ratio = 2, | |
577 | .fifo_size_reg_mask = 0x7f, | |
88b12a9a FMH |
578 | }; |
579 | ||
675935dd | 580 | static const struct hw_fifo_info ai_fifo_64xx = { |
68c3dbff BP |
581 | .num_segments = 4, |
582 | .max_segment_length = 0x800, | |
583 | .sample_packing_ratio = 1, | |
584 | .fifo_size_reg_mask = 0x3f, | |
88b12a9a FMH |
585 | }; |
586 | ||
675935dd | 587 | static const struct hw_fifo_info ai_fifo_60xx = { |
68c3dbff BP |
588 | .num_segments = 4, |
589 | .max_segment_length = 0x800, | |
590 | .sample_packing_ratio = 1, | |
591 | .fifo_size_reg_mask = 0x7f, | |
88b12a9a FMH |
592 | }; |
593 | ||
594 | /* maximum number of dma transfers we will chain together into a ring | |
595 | * (and the maximum number of dma buffers we maintain) */ | |
596 | #define MAX_AI_DMA_RING_COUNT (0x80000 / DMA_BUFFER_SIZE) | |
597 | #define MIN_AI_DMA_RING_COUNT (0x10000 / DMA_BUFFER_SIZE) | |
598 | #define AO_DMA_RING_COUNT (0x10000 / DMA_BUFFER_SIZE) | |
da91b269 | 599 | static inline unsigned int ai_dma_ring_count(struct pcidas64_board *board) |
88b12a9a FMH |
600 | { |
601 | if (board->layout == LAYOUT_4020) | |
602 | return MAX_AI_DMA_RING_COUNT; | |
603 | else | |
604 | return MIN_AI_DMA_RING_COUNT; | |
605 | } | |
606 | ||
607 | static const int bytes_in_sample = 2; | |
608 | ||
222ab1bc | 609 | static const struct pcidas64_board pcidas64_boards[] = { |
88b12a9a | 610 | { |
0a85b6f0 MT |
611 | .name = "pci-das6402/16", |
612 | .device_id = 0x1d, | |
613 | .ai_se_chans = 64, | |
614 | .ai_bits = 16, | |
615 | .ai_speed = 5000, | |
616 | .ao_nchan = 2, | |
617 | .ao_bits = 16, | |
618 | .ao_scan_speed = 10000, | |
619 | .layout = LAYOUT_64XX, | |
620 | .ai_range_table = &ai_ranges_64xx, | |
621 | .ao_range_table = &ao_ranges_64xx, | |
622 | .ao_range_code = ao_range_code_64xx, | |
623 | .ai_fifo = &ai_fifo_64xx, | |
624 | .has_8255 = 1, | |
625 | }, | |
88b12a9a | 626 | { |
0a85b6f0 MT |
627 | .name = "pci-das6402/12", /* XXX check */ |
628 | .device_id = 0x1e, | |
629 | .ai_se_chans = 64, | |
630 | .ai_bits = 12, | |
631 | .ai_speed = 5000, | |
632 | .ao_nchan = 2, | |
633 | .ao_bits = 12, | |
634 | .ao_scan_speed = 10000, | |
635 | .layout = LAYOUT_64XX, | |
636 | .ai_range_table = &ai_ranges_64xx, | |
637 | .ao_range_table = &ao_ranges_64xx, | |
638 | .ao_range_code = ao_range_code_64xx, | |
639 | .ai_fifo = &ai_fifo_64xx, | |
640 | .has_8255 = 1, | |
641 | }, | |
88b12a9a | 642 | { |
0a85b6f0 MT |
643 | .name = "pci-das64/m1/16", |
644 | .device_id = 0x35, | |
645 | .ai_se_chans = 64, | |
646 | .ai_bits = 16, | |
647 | .ai_speed = 1000, | |
648 | .ao_nchan = 2, | |
649 | .ao_bits = 16, | |
650 | .ao_scan_speed = 10000, | |
651 | .layout = LAYOUT_64XX, | |
652 | .ai_range_table = &ai_ranges_64xx, | |
653 | .ao_range_table = &ao_ranges_64xx, | |
654 | .ao_range_code = ao_range_code_64xx, | |
655 | .ai_fifo = &ai_fifo_64xx, | |
656 | .has_8255 = 1, | |
657 | }, | |
88b12a9a | 658 | { |
0a85b6f0 MT |
659 | .name = "pci-das64/m2/16", |
660 | .device_id = 0x36, | |
661 | .ai_se_chans = 64, | |
662 | .ai_bits = 16, | |
663 | .ai_speed = 500, | |
664 | .ao_nchan = 2, | |
665 | .ao_bits = 16, | |
666 | .ao_scan_speed = 10000, | |
667 | .layout = LAYOUT_64XX, | |
668 | .ai_range_table = &ai_ranges_64xx, | |
669 | .ao_range_table = &ao_ranges_64xx, | |
670 | .ao_range_code = ao_range_code_64xx, | |
671 | .ai_fifo = &ai_fifo_64xx, | |
672 | .has_8255 = 1, | |
673 | }, | |
88b12a9a | 674 | { |
0a85b6f0 MT |
675 | .name = "pci-das64/m3/16", |
676 | .device_id = 0x37, | |
677 | .ai_se_chans = 64, | |
678 | .ai_bits = 16, | |
679 | .ai_speed = 333, | |
680 | .ao_nchan = 2, | |
681 | .ao_bits = 16, | |
682 | .ao_scan_speed = 10000, | |
683 | .layout = LAYOUT_64XX, | |
684 | .ai_range_table = &ai_ranges_64xx, | |
685 | .ao_range_table = &ao_ranges_64xx, | |
686 | .ao_range_code = ao_range_code_64xx, | |
687 | .ai_fifo = &ai_fifo_64xx, | |
688 | .has_8255 = 1, | |
689 | }, | |
88b12a9a | 690 | { |
0a85b6f0 MT |
691 | .name = "pci-das6013", |
692 | .device_id = 0x78, | |
693 | .ai_se_chans = 16, | |
694 | .ai_bits = 16, | |
695 | .ai_speed = 5000, | |
696 | .ao_nchan = 0, | |
697 | .ao_bits = 16, | |
698 | .layout = LAYOUT_60XX, | |
699 | .ai_range_table = &ai_ranges_60xx, | |
700 | .ao_range_table = &ao_ranges_60xx, | |
701 | .ao_range_code = ao_range_code_60xx, | |
702 | .ai_fifo = &ai_fifo_60xx, | |
703 | .has_8255 = 0, | |
704 | }, | |
88b12a9a | 705 | { |
0a85b6f0 MT |
706 | .name = "pci-das6014", |
707 | .device_id = 0x79, | |
708 | .ai_se_chans = 16, | |
709 | .ai_bits = 16, | |
710 | .ai_speed = 5000, | |
711 | .ao_nchan = 2, | |
712 | .ao_bits = 16, | |
713 | .ao_scan_speed = 100000, | |
714 | .layout = LAYOUT_60XX, | |
715 | .ai_range_table = &ai_ranges_60xx, | |
716 | .ao_range_table = &ao_ranges_60xx, | |
717 | .ao_range_code = ao_range_code_60xx, | |
718 | .ai_fifo = &ai_fifo_60xx, | |
719 | .has_8255 = 0, | |
720 | }, | |
88b12a9a | 721 | { |
0a85b6f0 MT |
722 | .name = "pci-das6023", |
723 | .device_id = 0x5d, | |
724 | .ai_se_chans = 16, | |
725 | .ai_bits = 12, | |
726 | .ai_speed = 5000, | |
727 | .ao_nchan = 0, | |
728 | .ao_scan_speed = 100000, | |
729 | .layout = LAYOUT_60XX, | |
730 | .ai_range_table = &ai_ranges_60xx, | |
731 | .ao_range_table = &ao_ranges_60xx, | |
732 | .ao_range_code = ao_range_code_60xx, | |
733 | .ai_fifo = &ai_fifo_60xx, | |
734 | .has_8255 = 1, | |
735 | }, | |
88b12a9a | 736 | { |
0a85b6f0 MT |
737 | .name = "pci-das6025", |
738 | .device_id = 0x5e, | |
739 | .ai_se_chans = 16, | |
740 | .ai_bits = 12, | |
741 | .ai_speed = 5000, | |
742 | .ao_nchan = 2, | |
743 | .ao_bits = 12, | |
744 | .ao_scan_speed = 100000, | |
745 | .layout = LAYOUT_60XX, | |
746 | .ai_range_table = &ai_ranges_60xx, | |
747 | .ao_range_table = &ao_ranges_60xx, | |
748 | .ao_range_code = ao_range_code_60xx, | |
749 | .ai_fifo = &ai_fifo_60xx, | |
750 | .has_8255 = 1, | |
751 | }, | |
88b12a9a | 752 | { |
0a85b6f0 MT |
753 | .name = "pci-das6030", |
754 | .device_id = 0x5f, | |
755 | .ai_se_chans = 16, | |
756 | .ai_bits = 16, | |
757 | .ai_speed = 10000, | |
758 | .ao_nchan = 2, | |
759 | .ao_bits = 16, | |
760 | .ao_scan_speed = 10000, | |
761 | .layout = LAYOUT_60XX, | |
762 | .ai_range_table = &ai_ranges_6030, | |
763 | .ao_range_table = &ao_ranges_6030, | |
764 | .ao_range_code = ao_range_code_6030, | |
765 | .ai_fifo = &ai_fifo_60xx, | |
766 | .has_8255 = 0, | |
767 | }, | |
88b12a9a | 768 | { |
0a85b6f0 MT |
769 | .name = "pci-das6031", |
770 | .device_id = 0x60, | |
771 | .ai_se_chans = 64, | |
772 | .ai_bits = 16, | |
773 | .ai_speed = 10000, | |
774 | .ao_nchan = 2, | |
775 | .ao_bits = 16, | |
776 | .ao_scan_speed = 10000, | |
777 | .layout = LAYOUT_60XX, | |
778 | .ai_range_table = &ai_ranges_6030, | |
779 | .ao_range_table = &ao_ranges_6030, | |
780 | .ao_range_code = ao_range_code_6030, | |
781 | .ai_fifo = &ai_fifo_60xx, | |
782 | .has_8255 = 0, | |
783 | }, | |
88b12a9a | 784 | { |
0a85b6f0 MT |
785 | .name = "pci-das6032", |
786 | .device_id = 0x61, | |
787 | .ai_se_chans = 16, | |
788 | .ai_bits = 16, | |
789 | .ai_speed = 10000, | |
790 | .ao_nchan = 0, | |
791 | .layout = LAYOUT_60XX, | |
792 | .ai_range_table = &ai_ranges_6030, | |
793 | .ai_fifo = &ai_fifo_60xx, | |
794 | .has_8255 = 0, | |
795 | }, | |
88b12a9a | 796 | { |
0a85b6f0 MT |
797 | .name = "pci-das6033", |
798 | .device_id = 0x62, | |
799 | .ai_se_chans = 64, | |
800 | .ai_bits = 16, | |
801 | .ai_speed = 10000, | |
802 | .ao_nchan = 0, | |
803 | .layout = LAYOUT_60XX, | |
804 | .ai_range_table = &ai_ranges_6030, | |
805 | .ai_fifo = &ai_fifo_60xx, | |
806 | .has_8255 = 0, | |
807 | }, | |
88b12a9a | 808 | { |
0a85b6f0 MT |
809 | .name = "pci-das6034", |
810 | .device_id = 0x63, | |
811 | .ai_se_chans = 16, | |
812 | .ai_bits = 16, | |
813 | .ai_speed = 5000, | |
814 | .ao_nchan = 0, | |
815 | .ao_scan_speed = 0, | |
816 | .layout = LAYOUT_60XX, | |
817 | .ai_range_table = &ai_ranges_60xx, | |
818 | .ai_fifo = &ai_fifo_60xx, | |
819 | .has_8255 = 0, | |
820 | }, | |
88b12a9a | 821 | { |
0a85b6f0 MT |
822 | .name = "pci-das6035", |
823 | .device_id = 0x64, | |
824 | .ai_se_chans = 16, | |
825 | .ai_bits = 16, | |
826 | .ai_speed = 5000, | |
827 | .ao_nchan = 2, | |
828 | .ao_bits = 12, | |
829 | .ao_scan_speed = 100000, | |
830 | .layout = LAYOUT_60XX, | |
831 | .ai_range_table = &ai_ranges_60xx, | |
832 | .ao_range_table = &ao_ranges_60xx, | |
833 | .ao_range_code = ao_range_code_60xx, | |
834 | .ai_fifo = &ai_fifo_60xx, | |
835 | .has_8255 = 0, | |
836 | }, | |
88b12a9a | 837 | { |
0a85b6f0 MT |
838 | .name = "pci-das6036", |
839 | .device_id = 0x6f, | |
840 | .ai_se_chans = 16, | |
841 | .ai_bits = 16, | |
842 | .ai_speed = 5000, | |
843 | .ao_nchan = 2, | |
844 | .ao_bits = 16, | |
845 | .ao_scan_speed = 100000, | |
846 | .layout = LAYOUT_60XX, | |
847 | .ai_range_table = &ai_ranges_60xx, | |
848 | .ao_range_table = &ao_ranges_60xx, | |
849 | .ao_range_code = ao_range_code_60xx, | |
850 | .ai_fifo = &ai_fifo_60xx, | |
851 | .has_8255 = 0, | |
852 | }, | |
88b12a9a | 853 | { |
0a85b6f0 MT |
854 | .name = "pci-das6040", |
855 | .device_id = 0x65, | |
856 | .ai_se_chans = 16, | |
857 | .ai_bits = 12, | |
858 | .ai_speed = 2000, | |
859 | .ao_nchan = 2, | |
860 | .ao_bits = 12, | |
861 | .ao_scan_speed = 1000, | |
862 | .layout = LAYOUT_60XX, | |
863 | .ai_range_table = &ai_ranges_6052, | |
864 | .ao_range_table = &ao_ranges_6030, | |
865 | .ao_range_code = ao_range_code_6030, | |
866 | .ai_fifo = &ai_fifo_60xx, | |
867 | .has_8255 = 0, | |
868 | }, | |
88b12a9a | 869 | { |
0a85b6f0 MT |
870 | .name = "pci-das6052", |
871 | .device_id = 0x66, | |
872 | .ai_se_chans = 16, | |
873 | .ai_bits = 16, | |
874 | .ai_speed = 3333, | |
875 | .ao_nchan = 2, | |
876 | .ao_bits = 16, | |
877 | .ao_scan_speed = 3333, | |
878 | .layout = LAYOUT_60XX, | |
879 | .ai_range_table = &ai_ranges_6052, | |
880 | .ao_range_table = &ao_ranges_6030, | |
881 | .ao_range_code = ao_range_code_6030, | |
882 | .ai_fifo = &ai_fifo_60xx, | |
883 | .has_8255 = 0, | |
884 | }, | |
88b12a9a | 885 | { |
0a85b6f0 MT |
886 | .name = "pci-das6070", |
887 | .device_id = 0x67, | |
888 | .ai_se_chans = 16, | |
889 | .ai_bits = 12, | |
890 | .ai_speed = 800, | |
891 | .ao_nchan = 2, | |
892 | .ao_bits = 12, | |
893 | .ao_scan_speed = 1000, | |
894 | .layout = LAYOUT_60XX, | |
895 | .ai_range_table = &ai_ranges_6052, | |
896 | .ao_range_table = &ao_ranges_6030, | |
897 | .ao_range_code = ao_range_code_6030, | |
898 | .ai_fifo = &ai_fifo_60xx, | |
899 | .has_8255 = 0, | |
900 | }, | |
88b12a9a | 901 | { |
0a85b6f0 MT |
902 | .name = "pci-das6071", |
903 | .device_id = 0x68, | |
904 | .ai_se_chans = 64, | |
905 | .ai_bits = 12, | |
906 | .ai_speed = 800, | |
907 | .ao_nchan = 2, | |
908 | .ao_bits = 12, | |
909 | .ao_scan_speed = 1000, | |
910 | .layout = LAYOUT_60XX, | |
911 | .ai_range_table = &ai_ranges_6052, | |
912 | .ao_range_table = &ao_ranges_6030, | |
913 | .ao_range_code = ao_range_code_6030, | |
914 | .ai_fifo = &ai_fifo_60xx, | |
915 | .has_8255 = 0, | |
916 | }, | |
88b12a9a | 917 | { |
0a85b6f0 MT |
918 | .name = "pci-das4020/12", |
919 | .device_id = 0x52, | |
920 | .ai_se_chans = 4, | |
921 | .ai_bits = 12, | |
922 | .ai_speed = 50, | |
923 | .ao_bits = 12, | |
924 | .ao_nchan = 2, | |
925 | .ao_scan_speed = 0, /* no hardware pacing on ao */ | |
926 | .layout = LAYOUT_4020, | |
927 | .ai_range_table = &ai_ranges_4020, | |
928 | .ao_range_table = &ao_ranges_4020, | |
929 | .ao_range_code = ao_range_code_4020, | |
930 | .ai_fifo = &ai_fifo_4020, | |
931 | .has_8255 = 1, | |
932 | }, | |
88b12a9a FMH |
933 | #if 0 |
934 | { | |
0a85b6f0 MT |
935 | .name = "pci-das6402/16/jr", |
936 | .device_id = 0 /* XXX, */ | |
937 | .ai_se_chans = 64, | |
938 | .ai_bits = 16, | |
939 | .ai_speed = 5000, | |
940 | .ao_nchan = 0, | |
941 | .ao_scan_speed = 10000, | |
942 | .layout = LAYOUT_64XX, | |
943 | .ai_range_table = &ai_ranges_64xx, | |
944 | .ai_fifo = ai_fifo_64xx, | |
945 | .has_8255 = 1, | |
946 | }, | |
88b12a9a | 947 | { |
0a85b6f0 MT |
948 | .name = "pci-das64/m1/16/jr", |
949 | .device_id = 0 /* XXX, */ | |
950 | .ai_se_chans = 64, | |
951 | .ai_bits = 16, | |
952 | .ai_speed = 1000, | |
953 | .ao_nchan = 0, | |
954 | .ao_scan_speed = 10000, | |
955 | .layout = LAYOUT_64XX, | |
956 | .ai_range_table = &ai_ranges_64xx, | |
957 | .ai_fifo = ai_fifo_64xx, | |
958 | .has_8255 = 1, | |
959 | }, | |
88b12a9a | 960 | { |
0a85b6f0 MT |
961 | .name = "pci-das64/m2/16/jr", |
962 | .device_id = 0 /* XXX, */ | |
963 | .ai_se_chans = 64, | |
964 | .ai_bits = 16, | |
965 | .ai_speed = 500, | |
966 | .ao_nchan = 0, | |
967 | .ao_scan_speed = 10000, | |
968 | .layout = LAYOUT_64XX, | |
969 | .ai_range_table = &ai_ranges_64xx, | |
970 | .ai_fifo = ai_fifo_64xx, | |
971 | .has_8255 = 1, | |
972 | }, | |
88b12a9a | 973 | { |
0a85b6f0 MT |
974 | .name = "pci-das64/m3/16/jr", |
975 | .device_id = 0 /* XXX, */ | |
976 | .ai_se_chans = 64, | |
977 | .ai_bits = 16, | |
978 | .ai_speed = 333, | |
979 | .ao_nchan = 0, | |
980 | .ao_scan_speed = 10000, | |
981 | .layout = LAYOUT_64XX, | |
982 | .ai_range_table = &ai_ranges_64xx, | |
983 | .ai_fifo = ai_fifo_64xx, | |
984 | .has_8255 = 1, | |
985 | }, | |
88b12a9a | 986 | { |
0a85b6f0 MT |
987 | .name = "pci-das64/m1/14", |
988 | .device_id = 0, /* XXX */ | |
989 | .ai_se_chans = 64, | |
990 | .ai_bits = 14, | |
991 | .ai_speed = 1000, | |
992 | .ao_nchan = 2, | |
993 | .ao_scan_speed = 10000, | |
994 | .layout = LAYOUT_64XX, | |
995 | .ai_range_table = &ai_ranges_64xx, | |
996 | .ai_fifo = ai_fifo_64xx, | |
997 | .has_8255 = 1, | |
998 | }, | |
88b12a9a | 999 | { |
0a85b6f0 MT |
1000 | .name = "pci-das64/m2/14", |
1001 | .device_id = 0, /* XXX */ | |
1002 | .ai_se_chans = 64, | |
1003 | .ai_bits = 14, | |
1004 | .ai_speed = 500, | |
1005 | .ao_nchan = 2, | |
1006 | .ao_scan_speed = 10000, | |
1007 | .layout = LAYOUT_64XX, | |
1008 | .ai_range_table = &ai_ranges_64xx, | |
1009 | .ai_fifo = ai_fifo_64xx, | |
1010 | .has_8255 = 1, | |
1011 | }, | |
88b12a9a | 1012 | { |
0a85b6f0 MT |
1013 | .name = "pci-das64/m3/14", |
1014 | .device_id = 0, /* XXX */ | |
1015 | .ai_se_chans = 64, | |
1016 | .ai_bits = 14, | |
1017 | .ai_speed = 333, | |
1018 | .ao_nchan = 2, | |
1019 | .ao_scan_speed = 10000, | |
1020 | .layout = LAYOUT_64XX, | |
1021 | .ai_range_table = &ai_ranges_64xx, | |
1022 | .ai_fifo = ai_fifo_64xx, | |
1023 | .has_8255 = 1, | |
1024 | }, | |
88b12a9a FMH |
1025 | #endif |
1026 | }; | |
1027 | ||
0a85b6f0 | 1028 | static inline struct pcidas64_board *board(const struct comedi_device *dev) |
88b12a9a | 1029 | { |
0a85b6f0 | 1030 | return (struct pcidas64_board *)dev->board_ptr; |
88b12a9a FMH |
1031 | } |
1032 | ||
da91b269 | 1033 | static inline unsigned short se_diff_bit_6xxx(struct comedi_device *dev, |
0a85b6f0 | 1034 | int use_differential) |
88b12a9a FMH |
1035 | { |
1036 | if ((board(dev)->layout == LAYOUT_64XX && !use_differential) || | |
0a85b6f0 | 1037 | (board(dev)->layout == LAYOUT_60XX && use_differential)) |
88b12a9a FMH |
1038 | return ADC_SE_DIFF_BIT; |
1039 | else | |
1040 | return 0; | |
1041 | }; | |
1042 | ||
1043 | struct ext_clock_info { | |
9ef4dea6 BP |
1044 | unsigned int divisor; /* master clock divisor to use for scans with external master clock */ |
1045 | unsigned int chanspec; /* chanspec for master clock input when used as scan begin src */ | |
88b12a9a FMH |
1046 | }; |
1047 | ||
1048 | /* this structure is for data unique to this hardware driver. */ | |
450032a3 | 1049 | struct pcidas64_private { |
9ef4dea6 | 1050 | /* base addresses (physical) */ |
88b12a9a FMH |
1051 | resource_size_t plx9080_phys_iobase; |
1052 | resource_size_t main_phys_iobase; | |
1053 | resource_size_t dio_counter_phys_iobase; | |
9ef4dea6 | 1054 | /* base addresses (ioremapped) */ |
f31d0008 GKH |
1055 | void __iomem *plx9080_iobase; |
1056 | void __iomem *main_iobase; | |
1057 | void __iomem *dio_counter_iobase; | |
9ef4dea6 | 1058 | /* local address (used by dma controller) */ |
88b12a9a FMH |
1059 | uint32_t local0_iobase; |
1060 | uint32_t local1_iobase; | |
9ef4dea6 BP |
1061 | volatile unsigned int ai_count; /* number of analog input samples remaining */ |
1062 | uint16_t *ai_buffer[MAX_AI_DMA_RING_COUNT]; /* dma buffers for analog input */ | |
1063 | dma_addr_t ai_buffer_bus_addr[MAX_AI_DMA_RING_COUNT]; /* physical addresses of ai dma buffers */ | |
1064 | struct plx_dma_desc *ai_dma_desc; /* array of ai dma descriptors read by plx9080, allocated to get proper alignment */ | |
1065 | dma_addr_t ai_dma_desc_bus_addr; /* physical address of ai dma descriptor array */ | |
1066 | volatile unsigned int ai_dma_index; /* index of the ai dma descriptor/buffer that is currently being used */ | |
1067 | uint16_t *ao_buffer[AO_DMA_RING_COUNT]; /* dma buffers for analog output */ | |
1068 | dma_addr_t ao_buffer_bus_addr[AO_DMA_RING_COUNT]; /* physical addresses of ao dma buffers */ | |
88b12a9a FMH |
1069 | struct plx_dma_desc *ao_dma_desc; |
1070 | dma_addr_t ao_dma_desc_bus_addr; | |
9ef4dea6 BP |
1071 | volatile unsigned int ao_dma_index; /* keeps track of buffer where the next ao sample should go */ |
1072 | volatile unsigned long ao_count; /* number of analog output samples remaining */ | |
1073 | volatile unsigned int ao_value[2]; /* remember what the analog outputs are set to, to allow readback */ | |
1074 | unsigned int hw_revision; /* stc chip hardware revision number */ | |
1075 | volatile unsigned int intr_enable_bits; /* last bits sent to INTR_ENABLE_REG register */ | |
1076 | volatile uint16_t adc_control1_bits; /* last bits sent to ADC_CONTROL1_REG register */ | |
1077 | volatile uint16_t fifo_size_bits; /* last bits sent to FIFO_SIZE_REG register */ | |
1078 | volatile uint16_t hw_config_bits; /* last bits sent to HW_CONFIG_REG register */ | |
88b12a9a | 1079 | volatile uint16_t dac_control1_bits; |
9ef4dea6 BP |
1080 | volatile uint32_t plx_control_bits; /* last bits written to plx9080 control register */ |
1081 | volatile uint32_t plx_intcsr_bits; /* last bits written to plx interrupt control and status register */ | |
1082 | volatile int calibration_source; /* index of calibration source readable through ai ch0 */ | |
1083 | volatile uint8_t i2c_cal_range_bits; /* bits written to i2c calibration/range register */ | |
1084 | volatile unsigned int ext_trig_falling; /* configure digital triggers to trigger on falling edge */ | |
1085 | /* states of various devices stored to enable read-back */ | |
88b12a9a FMH |
1086 | unsigned int ad8402_state[2]; |
1087 | unsigned int caldac_state[8]; | |
1088 | volatile short ai_cmd_running; | |
1089 | unsigned int ai_fifo_segment_length; | |
1090 | struct ext_clock_info ext_clock; | |
790c5541 | 1091 | short ao_bounce_buffer[DAC_FIFO_SIZE]; |
450032a3 BP |
1092 | }; |
1093 | ||
814900c9 | 1094 | static int ai_rinsn(struct comedi_device *dev, struct comedi_subdevice *s, |
0a85b6f0 | 1095 | struct comedi_insn *insn, unsigned int *data); |
814900c9 | 1096 | static int ai_config_insn(struct comedi_device *dev, struct comedi_subdevice *s, |
0a85b6f0 | 1097 | struct comedi_insn *insn, unsigned int *data); |
814900c9 | 1098 | static int ao_winsn(struct comedi_device *dev, struct comedi_subdevice *s, |
0a85b6f0 MT |
1099 | struct comedi_insn *insn, unsigned int *data); |
1100 | static int ao_readback_insn(struct comedi_device *dev, | |
1101 | struct comedi_subdevice *s, | |
1102 | struct comedi_insn *insn, unsigned int *data); | |
814900c9 BP |
1103 | static int ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s); |
1104 | static int ai_cmdtest(struct comedi_device *dev, struct comedi_subdevice *s, | |
0a85b6f0 | 1105 | struct comedi_cmd *cmd); |
814900c9 | 1106 | static int ao_cmd(struct comedi_device *dev, struct comedi_subdevice *s); |
0a85b6f0 MT |
1107 | static int ao_inttrig(struct comedi_device *dev, |
1108 | struct comedi_subdevice *subdev, unsigned int trig_num); | |
814900c9 | 1109 | static int ao_cmdtest(struct comedi_device *dev, struct comedi_subdevice *s, |
0a85b6f0 | 1110 | struct comedi_cmd *cmd); |
70265d24 | 1111 | static irqreturn_t handle_interrupt(int irq, void *d); |
814900c9 BP |
1112 | static int ai_cancel(struct comedi_device *dev, struct comedi_subdevice *s); |
1113 | static int ao_cancel(struct comedi_device *dev, struct comedi_subdevice *s); | |
318a5b2a GKH |
1114 | static int dio_callback(int dir, int port, int data, unsigned long arg); |
1115 | static int dio_callback_4020(int dir, int port, int data, unsigned long arg); | |
814900c9 | 1116 | static int di_rbits(struct comedi_device *dev, struct comedi_subdevice *s, |
0a85b6f0 | 1117 | struct comedi_insn *insn, unsigned int *data); |
814900c9 | 1118 | static int do_wbits(struct comedi_device *dev, struct comedi_subdevice *s, |
0a85b6f0 MT |
1119 | struct comedi_insn *insn, unsigned int *data); |
1120 | static int dio_60xx_config_insn(struct comedi_device *dev, | |
1121 | struct comedi_subdevice *s, | |
1122 | struct comedi_insn *insn, unsigned int *data); | |
814900c9 | 1123 | static int dio_60xx_wbits(struct comedi_device *dev, struct comedi_subdevice *s, |
0a85b6f0 MT |
1124 | struct comedi_insn *insn, unsigned int *data); |
1125 | static int calib_read_insn(struct comedi_device *dev, | |
1126 | struct comedi_subdevice *s, struct comedi_insn *insn, | |
1127 | unsigned int *data); | |
1128 | static int calib_write_insn(struct comedi_device *dev, | |
1129 | struct comedi_subdevice *s, | |
1130 | struct comedi_insn *insn, unsigned int *data); | |
1131 | static int ad8402_read_insn(struct comedi_device *dev, | |
1132 | struct comedi_subdevice *s, | |
1133 | struct comedi_insn *insn, unsigned int *data); | |
814900c9 | 1134 | static void ad8402_write(struct comedi_device *dev, unsigned int channel, |
0a85b6f0 MT |
1135 | unsigned int value); |
1136 | static int ad8402_write_insn(struct comedi_device *dev, | |
1137 | struct comedi_subdevice *s, | |
1138 | struct comedi_insn *insn, unsigned int *data); | |
1139 | static int eeprom_read_insn(struct comedi_device *dev, | |
1140 | struct comedi_subdevice *s, | |
1141 | struct comedi_insn *insn, unsigned int *data); | |
814900c9 | 1142 | static void check_adc_timing(struct comedi_device *dev, struct comedi_cmd *cmd); |
88b12a9a | 1143 | static unsigned int get_divisor(unsigned int ns, unsigned int flags); |
814900c9 | 1144 | static void i2c_write(struct comedi_device *dev, unsigned int address, |
856ff77e | 1145 | const uint8_t *data, unsigned int length); |
814900c9 | 1146 | static void caldac_write(struct comedi_device *dev, unsigned int channel, |
0a85b6f0 | 1147 | unsigned int value); |
814900c9 | 1148 | static int caldac_8800_write(struct comedi_device *dev, unsigned int address, |
0a85b6f0 | 1149 | uint8_t value); |
9ef4dea6 | 1150 | /* static int dac_1590_write(struct comedi_device *dev, unsigned int dac_a, unsigned int dac_b); */ |
0a85b6f0 MT |
1151 | static int caldac_i2c_write(struct comedi_device *dev, |
1152 | unsigned int caldac_channel, unsigned int value); | |
814900c9 BP |
1153 | static void abort_dma(struct comedi_device *dev, unsigned int channel); |
1154 | static void disable_plx_interrupts(struct comedi_device *dev); | |
0a85b6f0 MT |
1155 | static int set_ai_fifo_size(struct comedi_device *dev, |
1156 | unsigned int num_samples); | |
814900c9 BP |
1157 | static unsigned int ai_fifo_size(struct comedi_device *dev); |
1158 | static int set_ai_fifo_segment_length(struct comedi_device *dev, | |
0a85b6f0 | 1159 | unsigned int num_entries); |
814900c9 BP |
1160 | static void disable_ai_pacing(struct comedi_device *dev); |
1161 | static void disable_ai_interrupts(struct comedi_device *dev); | |
0a85b6f0 MT |
1162 | static void enable_ai_interrupts(struct comedi_device *dev, |
1163 | const struct comedi_cmd *cmd); | |
88b12a9a | 1164 | static unsigned int get_ao_divisor(unsigned int ns, unsigned int flags); |
0a85b6f0 MT |
1165 | static void load_ao_dma(struct comedi_device *dev, |
1166 | const struct comedi_cmd *cmd); | |
88b12a9a | 1167 | |
814900c9 | 1168 | static unsigned int ai_range_bits_6xxx(const struct comedi_device *dev, |
0a85b6f0 | 1169 | unsigned int range_index) |
88b12a9a | 1170 | { |
1f6325d6 | 1171 | const struct comedi_krange *range = |
0a85b6f0 | 1172 | &board(dev)->ai_range_table->range[range_index]; |
88b12a9a FMH |
1173 | unsigned int bits = 0; |
1174 | ||
1175 | switch (range->max) { | |
1176 | case 10000000: | |
1177 | bits = 0x000; | |
1178 | break; | |
1179 | case 5000000: | |
1180 | bits = 0x100; | |
1181 | break; | |
1182 | case 2000000: | |
1183 | case 2500000: | |
1184 | bits = 0x200; | |
1185 | break; | |
1186 | case 1000000: | |
1187 | case 1250000: | |
1188 | bits = 0x300; | |
1189 | break; | |
1190 | case 500000: | |
1191 | bits = 0x400; | |
1192 | break; | |
1193 | case 200000: | |
1194 | case 250000: | |
1195 | bits = 0x500; | |
1196 | break; | |
1197 | case 100000: | |
1198 | bits = 0x600; | |
1199 | break; | |
1200 | case 50000: | |
1201 | bits = 0x700; | |
1202 | break; | |
1203 | default: | |
1204 | comedi_error(dev, "bug! in ai_range_bits_6xxx"); | |
1205 | break; | |
1206 | } | |
1207 | if (range->min == 0) | |
1208 | bits += 0x900; | |
1209 | return bits; | |
1210 | } | |
1211 | ||
da91b269 | 1212 | static unsigned int hw_revision(const struct comedi_device *dev, |
0a85b6f0 | 1213 | uint16_t hw_status_bits) |
88b12a9a FMH |
1214 | { |
1215 | if (board(dev)->layout == LAYOUT_4020) | |
1216 | return (hw_status_bits >> 13) & 0x7; | |
1217 | ||
1218 | return (hw_status_bits >> 12) & 0xf; | |
1219 | } | |
1220 | ||
0a85b6f0 | 1221 | static void set_dac_range_bits(struct comedi_device *dev, |
856ff77e | 1222 | volatile uint16_t *bits, unsigned int channel, |
0a85b6f0 | 1223 | unsigned int range) |
88b12a9a FMH |
1224 | { |
1225 | unsigned int code = board(dev)->ao_range_code[range]; | |
1226 | ||
1227 | if (channel > 1) | |
1228 | comedi_error(dev, "bug! bad channel?"); | |
1229 | if (code & ~0x3) | |
1230 | comedi_error(dev, "bug! bad range code?"); | |
1231 | ||
1232 | *bits &= ~(0x3 << (2 * channel)); | |
1233 | *bits |= code << (2 * channel); | |
1234 | }; | |
1235 | ||
da91b269 | 1236 | static inline int ao_cmd_is_supported(const struct pcidas64_board *board) |
88b12a9a FMH |
1237 | { |
1238 | return board->ao_nchan && board->layout != LAYOUT_4020; | |
1239 | } | |
1240 | ||
9ef4dea6 | 1241 | /* initialize plx9080 chip */ |
da91b269 | 1242 | static void init_plx9080(struct comedi_device *dev) |
88b12a9a | 1243 | { |
681d335a | 1244 | struct pcidas64_private *devpriv = dev->private; |
88b12a9a | 1245 | uint32_t bits; |
681d335a | 1246 | void __iomem *plx_iobase = devpriv->plx9080_iobase; |
88b12a9a | 1247 | |
681d335a HS |
1248 | devpriv->plx_control_bits = |
1249 | readl(devpriv->plx9080_iobase + PLX_CONTROL_REG); | |
88b12a9a | 1250 | |
9ef4dea6 | 1251 | /* plx9080 dump */ |
88b12a9a | 1252 | DEBUG_PRINT(" plx interrupt status 0x%x\n", |
0a85b6f0 | 1253 | readl(plx_iobase + PLX_INTRCS_REG)); |
88b12a9a | 1254 | DEBUG_PRINT(" plx id bits 0x%x\n", readl(plx_iobase + PLX_ID_REG)); |
681d335a | 1255 | DEBUG_PRINT(" plx control reg 0x%x\n", devpriv->plx_control_bits); |
88b12a9a | 1256 | DEBUG_PRINT(" plx mode/arbitration reg 0x%x\n", |
0a85b6f0 | 1257 | readl(plx_iobase + PLX_MARB_REG)); |
88b12a9a | 1258 | DEBUG_PRINT(" plx region0 reg 0x%x\n", |
0a85b6f0 | 1259 | readl(plx_iobase + PLX_REGION0_REG)); |
88b12a9a | 1260 | DEBUG_PRINT(" plx region1 reg 0x%x\n", |
0a85b6f0 | 1261 | readl(plx_iobase + PLX_REGION1_REG)); |
88b12a9a FMH |
1262 | |
1263 | DEBUG_PRINT(" plx revision 0x%x\n", | |
0a85b6f0 | 1264 | readl(plx_iobase + PLX_REVISION_REG)); |
88b12a9a | 1265 | DEBUG_PRINT(" plx dma channel 0 mode 0x%x\n", |
0a85b6f0 | 1266 | readl(plx_iobase + PLX_DMA0_MODE_REG)); |
88b12a9a | 1267 | DEBUG_PRINT(" plx dma channel 1 mode 0x%x\n", |
0a85b6f0 | 1268 | readl(plx_iobase + PLX_DMA1_MODE_REG)); |
88b12a9a | 1269 | DEBUG_PRINT(" plx dma channel 0 pci address 0x%x\n", |
0a85b6f0 | 1270 | readl(plx_iobase + PLX_DMA0_PCI_ADDRESS_REG)); |
88b12a9a | 1271 | DEBUG_PRINT(" plx dma channel 0 local address 0x%x\n", |
0a85b6f0 | 1272 | readl(plx_iobase + PLX_DMA0_LOCAL_ADDRESS_REG)); |
88b12a9a | 1273 | DEBUG_PRINT(" plx dma channel 0 transfer size 0x%x\n", |
0a85b6f0 | 1274 | readl(plx_iobase + PLX_DMA0_TRANSFER_SIZE_REG)); |
88b12a9a | 1275 | DEBUG_PRINT(" plx dma channel 0 descriptor 0x%x\n", |
0a85b6f0 | 1276 | readl(plx_iobase + PLX_DMA0_DESCRIPTOR_REG)); |
88b12a9a | 1277 | DEBUG_PRINT(" plx dma channel 0 command status 0x%x\n", |
0a85b6f0 | 1278 | readb(plx_iobase + PLX_DMA0_CS_REG)); |
88b12a9a | 1279 | DEBUG_PRINT(" plx dma channel 0 threshold 0x%x\n", |
0a85b6f0 | 1280 | readl(plx_iobase + PLX_DMA0_THRESHOLD_REG)); |
88b12a9a FMH |
1281 | DEBUG_PRINT(" plx bigend 0x%x\n", readl(plx_iobase + PLX_BIGEND_REG)); |
1282 | ||
1283 | #ifdef __BIG_ENDIAN | |
1284 | bits = BIGEND_DMA0 | BIGEND_DMA1; | |
1285 | #else | |
1286 | bits = 0; | |
1287 | #endif | |
681d335a | 1288 | writel(bits, devpriv->plx9080_iobase + PLX_BIGEND_REG); |
88b12a9a FMH |
1289 | |
1290 | disable_plx_interrupts(dev); | |
1291 | ||
1292 | abort_dma(dev, 0); | |
1293 | abort_dma(dev, 1); | |
1294 | ||
9ef4dea6 | 1295 | /* configure dma0 mode */ |
88b12a9a | 1296 | bits = 0; |
9ef4dea6 | 1297 | /* enable ready input, not sure if this is necessary */ |
88b12a9a | 1298 | bits |= PLX_DMA_EN_READYIN_BIT; |
9ef4dea6 | 1299 | /* enable bterm, not sure if this is necessary */ |
88b12a9a | 1300 | bits |= PLX_EN_BTERM_BIT; |
9ef4dea6 | 1301 | /* enable dma chaining */ |
88b12a9a | 1302 | bits |= PLX_EN_CHAIN_BIT; |
9ef4dea6 | 1303 | /* enable interrupt on dma done (probably don't need this, since chain never finishes) */ |
88b12a9a | 1304 | bits |= PLX_EN_DMA_DONE_INTR_BIT; |
9ef4dea6 | 1305 | /* don't increment local address during transfers (we are transferring from a fixed fifo register) */ |
88b12a9a | 1306 | bits |= PLX_LOCAL_ADDR_CONST_BIT; |
9ef4dea6 | 1307 | /* route dma interrupt to pci bus */ |
88b12a9a | 1308 | bits |= PLX_DMA_INTR_PCI_BIT; |
9ef4dea6 | 1309 | /* enable demand mode */ |
88b12a9a | 1310 | bits |= PLX_DEMAND_MODE_BIT; |
9ef4dea6 | 1311 | /* enable local burst mode */ |
88b12a9a | 1312 | bits |= PLX_DMA_LOCAL_BURST_EN_BIT; |
9ef4dea6 | 1313 | /* 4020 uses 32 bit dma */ |
88b12a9a FMH |
1314 | if (board(dev)->layout == LAYOUT_4020) { |
1315 | bits |= PLX_LOCAL_BUS_32_WIDE_BITS; | |
9ef4dea6 | 1316 | } else { /* localspace0 bus is 16 bits wide */ |
88b12a9a FMH |
1317 | bits |= PLX_LOCAL_BUS_16_WIDE_BITS; |
1318 | } | |
1319 | writel(bits, plx_iobase + PLX_DMA1_MODE_REG); | |
1320 | if (ao_cmd_is_supported(board(dev))) | |
1321 | writel(bits, plx_iobase + PLX_DMA0_MODE_REG); | |
1322 | ||
9ef4dea6 | 1323 | /* enable interrupts on plx 9080 */ |
681d335a | 1324 | devpriv->plx_intcsr_bits |= |
0a85b6f0 MT |
1325 | ICS_AERR | ICS_PERR | ICS_PIE | ICS_PLIE | ICS_PAIE | ICS_LIE | |
1326 | ICS_DMA0_E | ICS_DMA1_E; | |
681d335a HS |
1327 | writel(devpriv->plx_intcsr_bits, |
1328 | devpriv->plx9080_iobase + PLX_INTRCS_REG); | |
88b12a9a FMH |
1329 | } |
1330 | ||
1331 | /* Allocate and initialize the subdevice structures. | |
1332 | */ | |
da91b269 | 1333 | static int setup_subdevices(struct comedi_device *dev) |
88b12a9a | 1334 | { |
681d335a | 1335 | struct pcidas64_private *devpriv = dev->private; |
34c43922 | 1336 | struct comedi_subdevice *s; |
f31d0008 | 1337 | void __iomem *dio_8255_iobase; |
88b12a9a | 1338 | int i; |
8b6c5694 | 1339 | int ret; |
88b12a9a | 1340 | |
8b6c5694 HS |
1341 | ret = comedi_alloc_subdevices(dev, 10); |
1342 | if (ret) | |
1343 | return ret; | |
88b12a9a | 1344 | |
e4eb9523 | 1345 | s = &dev->subdevices[0]; |
88b12a9a FMH |
1346 | /* analog input subdevice */ |
1347 | dev->read_subdev = s; | |
1348 | s->type = COMEDI_SUBD_AI; | |
1349 | s->subdev_flags = SDF_READABLE | SDF_GROUND | SDF_DITHER | SDF_CMD_READ; | |
1350 | if (board(dev)->layout == LAYOUT_60XX) | |
1351 | s->subdev_flags |= SDF_COMMON | SDF_DIFF; | |
1352 | else if (board(dev)->layout == LAYOUT_64XX) | |
1353 | s->subdev_flags |= SDF_DIFF; | |
1354 | /* XXX Number of inputs in differential mode is ignored */ | |
1355 | s->n_chan = board(dev)->ai_se_chans; | |
1356 | s->len_chanlist = 0x2000; | |
1357 | s->maxdata = (1 << board(dev)->ai_bits) - 1; | |
1358 | s->range_table = board(dev)->ai_range_table; | |
1359 | s->insn_read = ai_rinsn; | |
1360 | s->insn_config = ai_config_insn; | |
1361 | s->do_cmd = ai_cmd; | |
1362 | s->do_cmdtest = ai_cmdtest; | |
1363 | s->cancel = ai_cancel; | |
1364 | if (board(dev)->layout == LAYOUT_4020) { | |
88b12a9a | 1365 | uint8_t data; |
9ef4dea6 | 1366 | /* set adc to read from inputs (not internal calibration sources) */ |
681d335a | 1367 | devpriv->i2c_cal_range_bits = adc_src_4020_bits(4); |
9ef4dea6 | 1368 | /* set channels to +-5 volt input ranges */ |
88b12a9a | 1369 | for (i = 0; i < s->n_chan; i++) |
681d335a HS |
1370 | devpriv->i2c_cal_range_bits |= attenuate_bit(i); |
1371 | data = devpriv->i2c_cal_range_bits; | |
88b12a9a FMH |
1372 | i2c_write(dev, RANGE_CAL_I2C_ADDR, &data, sizeof(data)); |
1373 | } | |
1374 | ||
1375 | /* analog output subdevice */ | |
e4eb9523 | 1376 | s = &dev->subdevices[1]; |
88b12a9a FMH |
1377 | if (board(dev)->ao_nchan) { |
1378 | s->type = COMEDI_SUBD_AO; | |
1379 | s->subdev_flags = | |
0a85b6f0 | 1380 | SDF_READABLE | SDF_WRITABLE | SDF_GROUND | SDF_CMD_WRITE; |
88b12a9a FMH |
1381 | s->n_chan = board(dev)->ao_nchan; |
1382 | s->maxdata = (1 << board(dev)->ao_bits) - 1; | |
1383 | s->range_table = board(dev)->ao_range_table; | |
1384 | s->insn_read = ao_readback_insn; | |
1385 | s->insn_write = ao_winsn; | |
1386 | if (ao_cmd_is_supported(board(dev))) { | |
1387 | dev->write_subdev = s; | |
1388 | s->do_cmdtest = ao_cmdtest; | |
1389 | s->do_cmd = ao_cmd; | |
1390 | s->len_chanlist = board(dev)->ao_nchan; | |
1391 | s->cancel = ao_cancel; | |
1392 | } | |
1393 | } else { | |
1394 | s->type = COMEDI_SUBD_UNUSED; | |
1395 | } | |
1396 | ||
9ef4dea6 | 1397 | /* digital input */ |
e4eb9523 | 1398 | s = &dev->subdevices[2]; |
88b12a9a FMH |
1399 | if (board(dev)->layout == LAYOUT_64XX) { |
1400 | s->type = COMEDI_SUBD_DI; | |
1401 | s->subdev_flags = SDF_READABLE; | |
1402 | s->n_chan = 4; | |
1403 | s->maxdata = 1; | |
1404 | s->range_table = &range_digital; | |
1405 | s->insn_bits = di_rbits; | |
1406 | } else | |
1407 | s->type = COMEDI_SUBD_UNUSED; | |
1408 | ||
9ef4dea6 | 1409 | /* digital output */ |
88b12a9a | 1410 | if (board(dev)->layout == LAYOUT_64XX) { |
e4eb9523 | 1411 | s = &dev->subdevices[3]; |
88b12a9a FMH |
1412 | s->type = COMEDI_SUBD_DO; |
1413 | s->subdev_flags = SDF_WRITABLE | SDF_READABLE; | |
1414 | s->n_chan = 4; | |
1415 | s->maxdata = 1; | |
1416 | s->range_table = &range_digital; | |
1417 | s->insn_bits = do_wbits; | |
1418 | } else | |
1419 | s->type = COMEDI_SUBD_UNUSED; | |
1420 | ||
1421 | /* 8255 */ | |
e4eb9523 | 1422 | s = &dev->subdevices[4]; |
88b12a9a FMH |
1423 | if (board(dev)->has_8255) { |
1424 | if (board(dev)->layout == LAYOUT_4020) { | |
1425 | dio_8255_iobase = | |
681d335a | 1426 | devpriv->main_iobase + I8255_4020_REG; |
88b12a9a | 1427 | subdev_8255_init(dev, s, dio_callback_4020, |
0a85b6f0 | 1428 | (unsigned long)dio_8255_iobase); |
88b12a9a FMH |
1429 | } else { |
1430 | dio_8255_iobase = | |
681d335a | 1431 | devpriv->dio_counter_iobase + DIO_8255_OFFSET; |
88b12a9a | 1432 | subdev_8255_init(dev, s, dio_callback, |
0a85b6f0 | 1433 | (unsigned long)dio_8255_iobase); |
88b12a9a FMH |
1434 | } |
1435 | } else | |
1436 | s->type = COMEDI_SUBD_UNUSED; | |
1437 | ||
9ef4dea6 | 1438 | /* 8 channel dio for 60xx */ |
e4eb9523 | 1439 | s = &dev->subdevices[5]; |
88b12a9a FMH |
1440 | if (board(dev)->layout == LAYOUT_60XX) { |
1441 | s->type = COMEDI_SUBD_DIO; | |
1442 | s->subdev_flags = SDF_WRITABLE | SDF_READABLE; | |
1443 | s->n_chan = 8; | |
1444 | s->maxdata = 1; | |
1445 | s->range_table = &range_digital; | |
1446 | s->insn_config = dio_60xx_config_insn; | |
1447 | s->insn_bits = dio_60xx_wbits; | |
1448 | } else | |
1449 | s->type = COMEDI_SUBD_UNUSED; | |
1450 | ||
9ef4dea6 | 1451 | /* caldac */ |
e4eb9523 | 1452 | s = &dev->subdevices[6]; |
88b12a9a FMH |
1453 | s->type = COMEDI_SUBD_CALIB; |
1454 | s->subdev_flags = SDF_READABLE | SDF_WRITABLE | SDF_INTERNAL; | |
1455 | s->n_chan = 8; | |
1456 | if (board(dev)->layout == LAYOUT_4020) | |
1457 | s->maxdata = 0xfff; | |
1458 | else | |
1459 | s->maxdata = 0xff; | |
1460 | s->insn_read = calib_read_insn; | |
1461 | s->insn_write = calib_write_insn; | |
1462 | for (i = 0; i < s->n_chan; i++) | |
1463 | caldac_write(dev, i, s->maxdata / 2); | |
1464 | ||
9ef4dea6 | 1465 | /* 2 channel ad8402 potentiometer */ |
e4eb9523 | 1466 | s = &dev->subdevices[7]; |
88b12a9a FMH |
1467 | if (board(dev)->layout == LAYOUT_64XX) { |
1468 | s->type = COMEDI_SUBD_CALIB; | |
1469 | s->subdev_flags = SDF_READABLE | SDF_WRITABLE | SDF_INTERNAL; | |
1470 | s->n_chan = 2; | |
1471 | s->insn_read = ad8402_read_insn; | |
1472 | s->insn_write = ad8402_write_insn; | |
1473 | s->maxdata = 0xff; | |
1474 | for (i = 0; i < s->n_chan; i++) | |
1475 | ad8402_write(dev, i, s->maxdata / 2); | |
1476 | } else | |
1477 | s->type = COMEDI_SUBD_UNUSED; | |
1478 | ||
9ef4dea6 | 1479 | /* serial EEPROM, if present */ |
e4eb9523 | 1480 | s = &dev->subdevices[8]; |
681d335a | 1481 | if (readl(devpriv->plx9080_iobase + PLX_CONTROL_REG) & CTL_EECHK) { |
88b12a9a FMH |
1482 | s->type = COMEDI_SUBD_MEMORY; |
1483 | s->subdev_flags = SDF_READABLE | SDF_INTERNAL; | |
1484 | s->n_chan = 128; | |
1485 | s->maxdata = 0xffff; | |
1486 | s->insn_read = eeprom_read_insn; | |
1487 | } else | |
1488 | s->type = COMEDI_SUBD_UNUSED; | |
1489 | ||
9ef4dea6 | 1490 | /* user counter subd XXX */ |
e4eb9523 | 1491 | s = &dev->subdevices[9]; |
88b12a9a FMH |
1492 | s->type = COMEDI_SUBD_UNUSED; |
1493 | ||
1494 | return 0; | |
1495 | } | |
1496 | ||
da91b269 | 1497 | static void disable_plx_interrupts(struct comedi_device *dev) |
88b12a9a | 1498 | { |
681d335a HS |
1499 | struct pcidas64_private *devpriv = dev->private; |
1500 | ||
1501 | devpriv->plx_intcsr_bits = 0; | |
1502 | writel(devpriv->plx_intcsr_bits, | |
1503 | devpriv->plx9080_iobase + PLX_INTRCS_REG); | |
88b12a9a FMH |
1504 | } |
1505 | ||
da91b269 | 1506 | static void init_stc_registers(struct comedi_device *dev) |
88b12a9a | 1507 | { |
681d335a | 1508 | struct pcidas64_private *devpriv = dev->private; |
88b12a9a FMH |
1509 | uint16_t bits; |
1510 | unsigned long flags; | |
1511 | ||
5f74ea14 | 1512 | spin_lock_irqsave(&dev->spinlock, flags); |
88b12a9a | 1513 | |
9ef4dea6 | 1514 | /* bit should be set for 6025, although docs say boards with <= 16 chans should be cleared XXX */ |
88b12a9a | 1515 | if (1) |
681d335a HS |
1516 | devpriv->adc_control1_bits |= ADC_QUEUE_CONFIG_BIT; |
1517 | writew(devpriv->adc_control1_bits, | |
1518 | devpriv->main_iobase + ADC_CONTROL1_REG); | |
88b12a9a | 1519 | |
9ef4dea6 | 1520 | /* 6402/16 manual says this register must be initialized to 0xff? */ |
681d335a | 1521 | writew(0xff, devpriv->main_iobase + ADC_SAMPLE_INTERVAL_UPPER_REG); |
88b12a9a FMH |
1522 | |
1523 | bits = SLOW_DAC_BIT | DMA_CH_SELECT_BIT; | |
1524 | if (board(dev)->layout == LAYOUT_4020) | |
1525 | bits |= INTERNAL_CLOCK_4020_BITS; | |
681d335a HS |
1526 | devpriv->hw_config_bits |= bits; |
1527 | writew(devpriv->hw_config_bits, | |
1528 | devpriv->main_iobase + HW_CONFIG_REG); | |
88b12a9a | 1529 | |
681d335a HS |
1530 | writew(0, devpriv->main_iobase + DAQ_SYNC_REG); |
1531 | writew(0, devpriv->main_iobase + CALIBRATION_REG); | |
88b12a9a | 1532 | |
5f74ea14 | 1533 | spin_unlock_irqrestore(&dev->spinlock, flags); |
88b12a9a | 1534 | |
9ef4dea6 | 1535 | /* set fifos to maximum size */ |
681d335a | 1536 | devpriv->fifo_size_bits |= DAC_FIFO_BITS; |
88b12a9a | 1537 | set_ai_fifo_segment_length(dev, |
0a85b6f0 | 1538 | board(dev)->ai_fifo->max_segment_length); |
88b12a9a | 1539 | |
681d335a HS |
1540 | devpriv->dac_control1_bits = DAC_OUTPUT_ENABLE_BIT; |
1541 | devpriv->intr_enable_bits = /* EN_DAC_INTR_SRC_BIT | DAC_INTR_QEMPTY_BITS | */ | |
0a85b6f0 | 1542 | EN_DAC_DONE_INTR_BIT | EN_DAC_UNDERRUN_BIT; |
681d335a HS |
1543 | writew(devpriv->intr_enable_bits, |
1544 | devpriv->main_iobase + INTR_ENABLE_REG); | |
88b12a9a FMH |
1545 | |
1546 | disable_ai_pacing(dev); | |
1547 | }; | |
1548 | ||
f31d0008 | 1549 | static int alloc_and_init_dma_members(struct comedi_device *dev) |
88b12a9a | 1550 | { |
000e2635 | 1551 | struct pci_dev *pcidev = comedi_to_pci_dev(dev); |
681d335a | 1552 | struct pcidas64_private *devpriv = dev->private; |
88b12a9a FMH |
1553 | int i; |
1554 | ||
9ef4dea6 | 1555 | /* alocate pci dma buffers */ |
88b12a9a | 1556 | for (i = 0; i < ai_dma_ring_count(board(dev)); i++) { |
681d335a | 1557 | devpriv->ai_buffer[i] = |
000e2635 | 1558 | pci_alloc_consistent(pcidev, DMA_BUFFER_SIZE, |
681d335a HS |
1559 | &devpriv->ai_buffer_bus_addr[i]); |
1560 | if (devpriv->ai_buffer[i] == NULL) | |
88b12a9a | 1561 | return -ENOMEM; |
90cae794 | 1562 | |
88b12a9a FMH |
1563 | } |
1564 | for (i = 0; i < AO_DMA_RING_COUNT; i++) { | |
1565 | if (ao_cmd_is_supported(board(dev))) { | |
681d335a | 1566 | devpriv->ao_buffer[i] = |
000e2635 | 1567 | pci_alloc_consistent(pcidev, |
0a85b6f0 | 1568 | DMA_BUFFER_SIZE, |
681d335a | 1569 | &devpriv-> |
0a85b6f0 | 1570 | ao_buffer_bus_addr[i]); |
681d335a | 1571 | if (devpriv->ao_buffer[i] == NULL) |
88b12a9a | 1572 | return -ENOMEM; |
90cae794 | 1573 | |
88b12a9a FMH |
1574 | } |
1575 | } | |
9ef4dea6 | 1576 | /* allocate dma descriptors */ |
681d335a | 1577 | devpriv->ai_dma_desc = |
000e2635 | 1578 | pci_alloc_consistent(pcidev, |
0a85b6f0 MT |
1579 | sizeof(struct plx_dma_desc) * |
1580 | ai_dma_ring_count(board(dev)), | |
681d335a HS |
1581 | &devpriv->ai_dma_desc_bus_addr); |
1582 | if (devpriv->ai_dma_desc == NULL) | |
88b12a9a | 1583 | return -ENOMEM; |
90cae794 | 1584 | |
88b12a9a | 1585 | DEBUG_PRINT("ai dma descriptors start at bus addr 0x%x\n", |
681d335a | 1586 | devpriv->ai_dma_desc_bus_addr); |
88b12a9a | 1587 | if (ao_cmd_is_supported(board(dev))) { |
681d335a | 1588 | devpriv->ao_dma_desc = |
000e2635 | 1589 | pci_alloc_consistent(pcidev, |
0a85b6f0 MT |
1590 | sizeof(struct plx_dma_desc) * |
1591 | AO_DMA_RING_COUNT, | |
681d335a HS |
1592 | &devpriv->ao_dma_desc_bus_addr); |
1593 | if (devpriv->ao_dma_desc == NULL) | |
88b12a9a | 1594 | return -ENOMEM; |
90cae794 | 1595 | |
88b12a9a | 1596 | DEBUG_PRINT("ao dma descriptors start at bus addr 0x%x\n", |
681d335a | 1597 | devpriv->ao_dma_desc_bus_addr); |
88b12a9a | 1598 | } |
9ef4dea6 | 1599 | /* initialize dma descriptors */ |
88b12a9a | 1600 | for (i = 0; i < ai_dma_ring_count(board(dev)); i++) { |
681d335a HS |
1601 | devpriv->ai_dma_desc[i].pci_start_addr = |
1602 | cpu_to_le32(devpriv->ai_buffer_bus_addr[i]); | |
88b12a9a | 1603 | if (board(dev)->layout == LAYOUT_4020) |
681d335a HS |
1604 | devpriv->ai_dma_desc[i].local_start_addr = |
1605 | cpu_to_le32(devpriv->local1_iobase + | |
0a85b6f0 | 1606 | ADC_FIFO_REG); |
88b12a9a | 1607 | else |
681d335a HS |
1608 | devpriv->ai_dma_desc[i].local_start_addr = |
1609 | cpu_to_le32(devpriv->local0_iobase + | |
0a85b6f0 | 1610 | ADC_FIFO_REG); |
681d335a HS |
1611 | devpriv->ai_dma_desc[i].transfer_size = cpu_to_le32(0); |
1612 | devpriv->ai_dma_desc[i].next = | |
1613 | cpu_to_le32((devpriv->ai_dma_desc_bus_addr + ((i + | |
0a85b6f0 MT |
1614 | 1) % |
1615 | ai_dma_ring_count | |
1616 | (board | |
1617 | (dev))) * | |
681d335a | 1618 | sizeof(devpriv->ai_dma_desc[0])) | |
0a85b6f0 MT |
1619 | PLX_DESC_IN_PCI_BIT | PLX_INTR_TERM_COUNT | |
1620 | PLX_XFER_LOCAL_TO_PCI); | |
88b12a9a FMH |
1621 | } |
1622 | if (ao_cmd_is_supported(board(dev))) { | |
1623 | for (i = 0; i < AO_DMA_RING_COUNT; i++) { | |
681d335a HS |
1624 | devpriv->ao_dma_desc[i].pci_start_addr = |
1625 | cpu_to_le32(devpriv->ao_buffer_bus_addr[i]); | |
1626 | devpriv->ao_dma_desc[i].local_start_addr = | |
1627 | cpu_to_le32(devpriv->local0_iobase + | |
0a85b6f0 | 1628 | DAC_FIFO_REG); |
681d335a | 1629 | devpriv->ao_dma_desc[i].transfer_size = |
0a85b6f0 | 1630 | cpu_to_le32(0); |
681d335a HS |
1631 | devpriv->ao_dma_desc[i].next = |
1632 | cpu_to_le32((devpriv->ao_dma_desc_bus_addr + | |
0a85b6f0 | 1633 | ((i + 1) % (AO_DMA_RING_COUNT)) * |
681d335a | 1634 | sizeof(devpriv->ao_dma_desc[0])) | |
0a85b6f0 MT |
1635 | PLX_DESC_IN_PCI_BIT | |
1636 | PLX_INTR_TERM_COUNT); | |
88b12a9a FMH |
1637 | } |
1638 | } | |
1639 | return 0; | |
1640 | } | |
1641 | ||
da91b269 | 1642 | static inline void warn_external_queue(struct comedi_device *dev) |
88b12a9a FMH |
1643 | { |
1644 | comedi_error(dev, | |
0a85b6f0 | 1645 | "AO command and AI external channel queue cannot be used simultaneously."); |
88b12a9a | 1646 | comedi_error(dev, |
0a85b6f0 | 1647 | "Use internal AI channel queue (channels must be consecutive and use same range/aref)"); |
88b12a9a FMH |
1648 | } |
1649 | ||
eeff9dbc HS |
1650 | static struct pci_dev *cb_pcidas64_find_pci_dev(struct comedi_device *dev, |
1651 | struct comedi_devconfig *it) | |
88b12a9a | 1652 | { |
20fb2280 | 1653 | struct pci_dev *pcidev = NULL; |
88262703 HS |
1654 | int bus = it->options[0]; |
1655 | int slot = it->options[1]; | |
1656 | int i; | |
88b12a9a | 1657 | |
20fb2280 | 1658 | for_each_pci_dev(pcidev) { |
88262703 HS |
1659 | if (bus || slot) { |
1660 | if (bus != pcidev->bus->number || | |
1661 | slot != PCI_SLOT(pcidev->devfn)) | |
1662 | continue; | |
1663 | } | |
88b12a9a FMH |
1664 | if (pcidev->vendor != PCI_VENDOR_ID_COMPUTERBOARDS) |
1665 | continue; | |
88262703 HS |
1666 | |
1667 | for (i = 0; i < ARRAY_SIZE(pcidas64_boards); i++) { | |
1668 | if (pcidas64_boards[i].device_id != pcidev->device) | |
88b12a9a | 1669 | continue; |
88262703 | 1670 | dev->board_ptr = pcidas64_boards + i; |
eeff9dbc | 1671 | return pcidev; |
88b12a9a | 1672 | } |
88b12a9a | 1673 | } |
88262703 HS |
1674 | dev_err(dev->class_dev, |
1675 | "No supported board found! (req. bus %d, slot %d)\n", | |
1676 | bus, slot); | |
eeff9dbc HS |
1677 | return NULL; |
1678 | } | |
88b12a9a | 1679 | |
eeff9dbc HS |
1680 | /* |
1681 | * Attach is called by the Comedi core to configure the driver | |
1682 | * for a particular board. | |
1683 | */ | |
1684 | static int attach(struct comedi_device *dev, struct comedi_devconfig *it) | |
1685 | { | |
681d335a | 1686 | struct pcidas64_private *devpriv; |
eeff9dbc HS |
1687 | struct pci_dev *pcidev; |
1688 | uint32_t local_range, local_decode; | |
1689 | int retval; | |
1690 | ||
c34fa261 HS |
1691 | devpriv = kzalloc(sizeof(*devpriv), GFP_KERNEL); |
1692 | if (!devpriv) | |
1693 | return -ENOMEM; | |
1694 | dev->private = devpriv; | |
eeff9dbc HS |
1695 | |
1696 | pcidev = cb_pcidas64_find_pci_dev(dev, it); | |
1697 | if (!pcidev) | |
1698 | return -EIO; | |
000e2635 | 1699 | comedi_set_hw_dev(dev, &pcidev->dev); |
88b12a9a | 1700 | |
bdc7cc50 | 1701 | if (comedi_pci_enable(pcidev, dev->driver->driver_name)) { |
f41ad667 IA |
1702 | dev_warn(dev->class_dev, |
1703 | "failed to enable PCI device and request regions\n"); | |
88b12a9a FMH |
1704 | return -EIO; |
1705 | } | |
1706 | pci_set_master(pcidev); | |
1707 | ||
9ef4dea6 | 1708 | /* Initialize dev->board_name */ |
88b12a9a FMH |
1709 | dev->board_name = board(dev)->name; |
1710 | ||
000e2635 HS |
1711 | dev->iobase = pci_resource_start(pcidev, MAIN_BADDRINDEX); |
1712 | ||
681d335a | 1713 | devpriv->plx9080_phys_iobase = |
0a85b6f0 | 1714 | pci_resource_start(pcidev, PLX9080_BADDRINDEX); |
681d335a HS |
1715 | devpriv->main_phys_iobase = dev->iobase; |
1716 | devpriv->dio_counter_phys_iobase = | |
0a85b6f0 | 1717 | pci_resource_start(pcidev, DIO_COUNTER_BADDRINDEX); |
88b12a9a | 1718 | |
9ef4dea6 | 1719 | /* remap, won't work with 2.0 kernels but who cares */ |
681d335a | 1720 | devpriv->plx9080_iobase = ioremap(devpriv->plx9080_phys_iobase, |
0a85b6f0 MT |
1721 | pci_resource_len(pcidev, |
1722 | PLX9080_BADDRINDEX)); | |
681d335a HS |
1723 | devpriv->main_iobase = |
1724 | ioremap(devpriv->main_phys_iobase, | |
0a85b6f0 | 1725 | pci_resource_len(pcidev, MAIN_BADDRINDEX)); |
681d335a HS |
1726 | devpriv->dio_counter_iobase = |
1727 | ioremap(devpriv->dio_counter_phys_iobase, | |
0a85b6f0 | 1728 | pci_resource_len(pcidev, DIO_COUNTER_BADDRINDEX)); |
88b12a9a | 1729 | |
681d335a HS |
1730 | if (!devpriv->plx9080_iobase || !devpriv->main_iobase |
1731 | || !devpriv->dio_counter_iobase) { | |
f41ad667 | 1732 | dev_warn(dev->class_dev, "failed to remap io memory\n"); |
88b12a9a FMH |
1733 | return -ENOMEM; |
1734 | } | |
1735 | ||
681d335a HS |
1736 | DEBUG_PRINT(" plx9080 remapped to 0x%p\n", devpriv->plx9080_iobase); |
1737 | DEBUG_PRINT(" main remapped to 0x%p\n", devpriv->main_iobase); | |
88b12a9a | 1738 | DEBUG_PRINT(" diocounter remapped to 0x%p\n", |
681d335a | 1739 | devpriv->dio_counter_iobase); |
88b12a9a | 1740 | |
9ef4dea6 | 1741 | /* figure out what local addresses are */ |
88b12a9a | 1742 | local_range = |
681d335a | 1743 | readl(devpriv->plx9080_iobase + PLX_LAS0RNG_REG) & LRNG_MEM_MASK; |
88b12a9a | 1744 | local_decode = |
681d335a | 1745 | readl(devpriv->plx9080_iobase + |
0a85b6f0 | 1746 | PLX_LAS0MAP_REG) & local_range & LMAP_MEM_MASK; |
681d335a HS |
1747 | devpriv->local0_iobase = |
1748 | ((uint32_t) devpriv->main_phys_iobase & ~local_range) | | |
0a85b6f0 | 1749 | local_decode; |
88b12a9a | 1750 | local_range = |
681d335a | 1751 | readl(devpriv->plx9080_iobase + PLX_LAS1RNG_REG) & LRNG_MEM_MASK; |
88b12a9a | 1752 | local_decode = |
681d335a | 1753 | readl(devpriv->plx9080_iobase + |
0a85b6f0 | 1754 | PLX_LAS1MAP_REG) & local_range & LMAP_MEM_MASK; |
681d335a HS |
1755 | devpriv->local1_iobase = |
1756 | ((uint32_t) devpriv->dio_counter_phys_iobase & ~local_range) | | |
0a85b6f0 | 1757 | local_decode; |
88b12a9a | 1758 | |
681d335a HS |
1759 | DEBUG_PRINT(" local 0 io addr 0x%x\n", devpriv->local0_iobase); |
1760 | DEBUG_PRINT(" local 1 io addr 0x%x\n", devpriv->local1_iobase); | |
88b12a9a FMH |
1761 | |
1762 | retval = alloc_and_init_dma_members(dev); | |
1763 | if (retval < 0) | |
1764 | return retval; | |
1765 | ||
681d335a HS |
1766 | devpriv->hw_revision = |
1767 | hw_revision(dev, readw(devpriv->main_iobase + HW_STATUS_REG)); | |
f41ad667 | 1768 | dev_dbg(dev->class_dev, "stc hardware revision %i\n", |
681d335a | 1769 | devpriv->hw_revision); |
88b12a9a FMH |
1770 | init_plx9080(dev); |
1771 | init_stc_registers(dev); | |
9ef4dea6 | 1772 | /* get irq */ |
5f74ea14 | 1773 | if (request_irq(pcidev->irq, handle_interrupt, IRQF_SHARED, |
88b12a9a | 1774 | "cb_pcidas64", dev)) { |
f41ad667 | 1775 | dev_dbg(dev->class_dev, "unable to allocate irq %u\n", |
d78678da | 1776 | pcidev->irq); |
88b12a9a FMH |
1777 | return -EINVAL; |
1778 | } | |
1779 | dev->irq = pcidev->irq; | |
f41ad667 | 1780 | dev_dbg(dev->class_dev, "irq %u\n", dev->irq); |
88b12a9a FMH |
1781 | |
1782 | retval = setup_subdevices(dev); | |
90cae794 | 1783 | if (retval < 0) |
88b12a9a | 1784 | return retval; |
90cae794 | 1785 | |
88b12a9a FMH |
1786 | |
1787 | return 0; | |
1788 | } | |
1789 | ||
484ecc95 | 1790 | static void detach(struct comedi_device *dev) |
88b12a9a | 1791 | { |
000e2635 | 1792 | struct pci_dev *pcidev = comedi_to_pci_dev(dev); |
681d335a | 1793 | struct pcidas64_private *devpriv = dev->private; |
88b12a9a FMH |
1794 | unsigned int i; |
1795 | ||
88b12a9a | 1796 | if (dev->irq) |
5f74ea14 | 1797 | free_irq(dev->irq, dev); |
681d335a | 1798 | if (devpriv) { |
000e2635 | 1799 | if (pcidev) { |
681d335a | 1800 | if (devpriv->plx9080_iobase) { |
88b12a9a | 1801 | disable_plx_interrupts(dev); |
681d335a | 1802 | iounmap(devpriv->plx9080_iobase); |
88b12a9a | 1803 | } |
681d335a HS |
1804 | if (devpriv->main_iobase) |
1805 | iounmap(devpriv->main_iobase); | |
1806 | if (devpriv->dio_counter_iobase) | |
1807 | iounmap(devpriv->dio_counter_iobase); | |
9ef4dea6 | 1808 | /* free pci dma buffers */ |
88b12a9a | 1809 | for (i = 0; i < ai_dma_ring_count(board(dev)); i++) { |
681d335a | 1810 | if (devpriv->ai_buffer[i]) |
000e2635 | 1811 | pci_free_consistent(pcidev, |
681d335a HS |
1812 | DMA_BUFFER_SIZE, |
1813 | devpriv->ai_buffer[i], | |
1814 | devpriv->ai_buffer_bus_addr[i]); | |
88b12a9a FMH |
1815 | } |
1816 | for (i = 0; i < AO_DMA_RING_COUNT; i++) { | |
681d335a | 1817 | if (devpriv->ao_buffer[i]) |
000e2635 | 1818 | pci_free_consistent(pcidev, |
681d335a HS |
1819 | DMA_BUFFER_SIZE, |
1820 | devpriv->ao_buffer[i], | |
1821 | devpriv->ao_buffer_bus_addr[i]); | |
88b12a9a | 1822 | } |
9ef4dea6 | 1823 | /* free dma descriptors */ |
681d335a | 1824 | if (devpriv->ai_dma_desc) |
000e2635 | 1825 | pci_free_consistent(pcidev, |
681d335a HS |
1826 | sizeof(struct plx_dma_desc) * |
1827 | ai_dma_ring_count(board(dev)), | |
1828 | devpriv->ai_dma_desc, | |
1829 | devpriv->ai_dma_desc_bus_addr); | |
1830 | if (devpriv->ao_dma_desc) | |
000e2635 | 1831 | pci_free_consistent(pcidev, |
681d335a HS |
1832 | sizeof(struct plx_dma_desc) * |
1833 | AO_DMA_RING_COUNT, | |
1834 | devpriv->ao_dma_desc, | |
1835 | devpriv->ao_dma_desc_bus_addr); | |
88b12a9a FMH |
1836 | } |
1837 | } | |
1838 | if (dev->subdevices) | |
e4eb9523 | 1839 | subdev_8255_cleanup(dev, &dev->subdevices[4]); |
000e2635 HS |
1840 | if (pcidev) { |
1841 | if (dev->iobase) | |
1842 | comedi_pci_disable(pcidev); | |
1843 | ||
1844 | pci_dev_put(pcidev); | |
1845 | } | |
88b12a9a FMH |
1846 | } |
1847 | ||
da91b269 | 1848 | static int ai_rinsn(struct comedi_device *dev, struct comedi_subdevice *s, |
0a85b6f0 | 1849 | struct comedi_insn *insn, unsigned int *data) |
88b12a9a | 1850 | { |
681d335a | 1851 | struct pcidas64_private *devpriv = dev->private; |
88b12a9a FMH |
1852 | unsigned int bits = 0, n, i; |
1853 | unsigned int channel, range, aref; | |
1854 | unsigned long flags; | |
1855 | static const int timeout = 100; | |
1856 | ||
1857 | DEBUG_PRINT("chanspec 0x%x\n", insn->chanspec); | |
1858 | channel = CR_CHAN(insn->chanspec); | |
1859 | range = CR_RANGE(insn->chanspec); | |
1860 | aref = CR_AREF(insn->chanspec); | |
1861 | ||
9ef4dea6 BP |
1862 | /* disable card's analog input interrupt sources and pacing */ |
1863 | /* 4020 generates dac done interrupts even though they are disabled */ | |
88b12a9a FMH |
1864 | disable_ai_pacing(dev); |
1865 | ||
5f74ea14 | 1866 | spin_lock_irqsave(&dev->spinlock, flags); |
88b12a9a | 1867 | if (insn->chanspec & CR_ALT_FILTER) |
681d335a | 1868 | devpriv->adc_control1_bits |= ADC_DITHER_BIT; |
88b12a9a | 1869 | else |
681d335a HS |
1870 | devpriv->adc_control1_bits &= ~ADC_DITHER_BIT; |
1871 | writew(devpriv->adc_control1_bits, | |
1872 | devpriv->main_iobase + ADC_CONTROL1_REG); | |
5f74ea14 | 1873 | spin_unlock_irqrestore(&dev->spinlock, flags); |
88b12a9a FMH |
1874 | |
1875 | if (board(dev)->layout != LAYOUT_4020) { | |
9ef4dea6 | 1876 | /* use internal queue */ |
681d335a HS |
1877 | devpriv->hw_config_bits &= ~EXT_QUEUE_BIT; |
1878 | writew(devpriv->hw_config_bits, | |
1879 | devpriv->main_iobase + HW_CONFIG_REG); | |
88b12a9a | 1880 | |
9ef4dea6 | 1881 | /* ALT_SOURCE is internal calibration reference */ |
88b12a9a FMH |
1882 | if (insn->chanspec & CR_ALT_SOURCE) { |
1883 | unsigned int cal_en_bit; | |
1884 | ||
1885 | DEBUG_PRINT("reading calibration source\n"); | |
1886 | if (board(dev)->layout == LAYOUT_60XX) | |
1887 | cal_en_bit = CAL_EN_60XX_BIT; | |
1888 | else | |
1889 | cal_en_bit = CAL_EN_64XX_BIT; | |
9ef4dea6 | 1890 | /* select internal reference source to connect to channel 0 */ |
0a85b6f0 | 1891 | writew(cal_en_bit | |
681d335a HS |
1892 | adc_src_bits(devpriv->calibration_source), |
1893 | devpriv->main_iobase + CALIBRATION_REG); | |
88b12a9a | 1894 | } else { |
9ef4dea6 | 1895 | /* make sure internal calibration source is turned off */ |
681d335a | 1896 | writew(0, devpriv->main_iobase + CALIBRATION_REG); |
88b12a9a | 1897 | } |
9ef4dea6 | 1898 | /* load internal queue */ |
88b12a9a | 1899 | bits = 0; |
9ef4dea6 | 1900 | /* set gain */ |
88b12a9a | 1901 | bits |= ai_range_bits_6xxx(dev, CR_RANGE(insn->chanspec)); |
9ef4dea6 | 1902 | /* set single-ended / differential */ |
88b12a9a FMH |
1903 | bits |= se_diff_bit_6xxx(dev, aref == AREF_DIFF); |
1904 | if (aref == AREF_COMMON) | |
1905 | bits |= ADC_COMMON_BIT; | |
1906 | bits |= adc_chan_bits(channel); | |
9ef4dea6 | 1907 | /* set stop channel */ |
88b12a9a | 1908 | writew(adc_chan_bits(channel), |
681d335a | 1909 | devpriv->main_iobase + ADC_QUEUE_HIGH_REG); |
9ef4dea6 | 1910 | /* set start channel, and rest of settings */ |
681d335a | 1911 | writew(bits, devpriv->main_iobase + ADC_QUEUE_LOAD_REG); |
88b12a9a | 1912 | } else { |
681d335a | 1913 | uint8_t old_cal_range_bits = devpriv->i2c_cal_range_bits; |
88b12a9a | 1914 | |
681d335a | 1915 | devpriv->i2c_cal_range_bits &= ~ADC_SRC_4020_MASK; |
88b12a9a FMH |
1916 | if (insn->chanspec & CR_ALT_SOURCE) { |
1917 | DEBUG_PRINT("reading calibration source\n"); | |
681d335a HS |
1918 | devpriv->i2c_cal_range_bits |= |
1919 | adc_src_4020_bits(devpriv->calibration_source); | |
9ef4dea6 | 1920 | } else { /* select BNC inputs */ |
681d335a | 1921 | devpriv->i2c_cal_range_bits |= adc_src_4020_bits(4); |
88b12a9a | 1922 | } |
9ef4dea6 | 1923 | /* select range */ |
88b12a9a | 1924 | if (range == 0) |
681d335a | 1925 | devpriv->i2c_cal_range_bits |= attenuate_bit(channel); |
88b12a9a | 1926 | else |
681d335a | 1927 | devpriv->i2c_cal_range_bits &= |
0a85b6f0 | 1928 | ~attenuate_bit(channel); |
9ef4dea6 | 1929 | /* update calibration/range i2c register only if necessary, as it is very slow */ |
681d335a HS |
1930 | if (old_cal_range_bits != devpriv->i2c_cal_range_bits) { |
1931 | uint8_t i2c_data = devpriv->i2c_cal_range_bits; | |
88b12a9a | 1932 | i2c_write(dev, RANGE_CAL_I2C_ADDR, &i2c_data, |
0a85b6f0 | 1933 | sizeof(i2c_data)); |
88b12a9a FMH |
1934 | } |
1935 | ||
1936 | /* 4020 manual asks that sample interval register to be set before writing to convert register. | |
1937 | * Using somewhat arbitrary setting of 4 master clock ticks = 0.1 usec */ | |
1938 | writew(0, | |
681d335a | 1939 | devpriv->main_iobase + ADC_SAMPLE_INTERVAL_UPPER_REG); |
88b12a9a | 1940 | writew(2, |
681d335a | 1941 | devpriv->main_iobase + ADC_SAMPLE_INTERVAL_LOWER_REG); |
88b12a9a FMH |
1942 | } |
1943 | ||
1944 | for (n = 0; n < insn->n; n++) { | |
1945 | ||
9ef4dea6 | 1946 | /* clear adc buffer (inside loop for 4020 sake) */ |
681d335a | 1947 | writew(0, devpriv->main_iobase + ADC_BUFFER_CLEAR_REG); |
88b12a9a FMH |
1948 | |
1949 | /* trigger conversion, bits sent only matter for 4020 */ | |
1950 | writew(adc_convert_chan_4020_bits(CR_CHAN(insn->chanspec)), | |
681d335a | 1951 | devpriv->main_iobase + ADC_CONVERT_REG); |
88b12a9a | 1952 | |
9ef4dea6 | 1953 | /* wait for data */ |
88b12a9a | 1954 | for (i = 0; i < timeout; i++) { |
681d335a | 1955 | bits = readw(devpriv->main_iobase + HW_STATUS_REG); |
88b12a9a FMH |
1956 | DEBUG_PRINT(" pipe bits 0x%x\n", pipe_full_bits(bits)); |
1957 | if (board(dev)->layout == LAYOUT_4020) { | |
681d335a | 1958 | if (readw(devpriv->main_iobase + |
0a85b6f0 | 1959 | ADC_WRITE_PNTR_REG)) |
88b12a9a FMH |
1960 | break; |
1961 | } else { | |
1962 | if (pipe_full_bits(bits)) | |
1963 | break; | |
1964 | } | |
5f74ea14 | 1965 | udelay(1); |
88b12a9a FMH |
1966 | } |
1967 | DEBUG_PRINT(" looped %i times waiting for data\n", i); | |
1968 | if (i == timeout) { | |
1969 | comedi_error(dev, " analog input read insn timed out"); | |
5f74ea14 | 1970 | printk(" status 0x%x\n", bits); |
88b12a9a FMH |
1971 | return -ETIME; |
1972 | } | |
1973 | if (board(dev)->layout == LAYOUT_4020) | |
1974 | data[n] = | |
681d335a | 1975 | readl(devpriv->dio_counter_iobase + |
0a85b6f0 | 1976 | ADC_FIFO_REG) & 0xffff; |
88b12a9a FMH |
1977 | else |
1978 | data[n] = | |
681d335a | 1979 | readw(devpriv->main_iobase + PIPE1_READ_REG); |
88b12a9a FMH |
1980 | } |
1981 | ||
1982 | return n; | |
1983 | } | |
1984 | ||
0a85b6f0 MT |
1985 | static int ai_config_calibration_source(struct comedi_device *dev, |
1986 | unsigned int *data) | |
88b12a9a | 1987 | { |
681d335a | 1988 | struct pcidas64_private *devpriv = dev->private; |
790c5541 | 1989 | unsigned int source = data[1]; |
88b12a9a FMH |
1990 | int num_calibration_sources; |
1991 | ||
1992 | if (board(dev)->layout == LAYOUT_60XX) | |
1993 | num_calibration_sources = 16; | |
1994 | else | |
1995 | num_calibration_sources = 8; | |
1996 | if (source >= num_calibration_sources) { | |
f41ad667 | 1997 | dev_dbg(dev->class_dev, "invalid calibration source: %i\n", |
6c6c227d | 1998 | source); |
88b12a9a FMH |
1999 | return -EINVAL; |
2000 | } | |
2001 | ||
2002 | DEBUG_PRINT("setting calibration source to %i\n", source); | |
681d335a | 2003 | devpriv->calibration_source = source; |
88b12a9a FMH |
2004 | |
2005 | return 2; | |
2006 | } | |
2007 | ||
da91b269 | 2008 | static int ai_config_block_size(struct comedi_device *dev, unsigned int *data) |
88b12a9a FMH |
2009 | { |
2010 | int fifo_size; | |
675935dd | 2011 | const struct hw_fifo_info *const fifo = board(dev)->ai_fifo; |
88b12a9a FMH |
2012 | unsigned int block_size, requested_block_size; |
2013 | int retval; | |
2014 | ||
2015 | requested_block_size = data[1]; | |
2016 | ||
2017 | if (requested_block_size) { | |
2018 | fifo_size = | |
0a85b6f0 | 2019 | requested_block_size * fifo->num_segments / bytes_in_sample; |
88b12a9a FMH |
2020 | |
2021 | retval = set_ai_fifo_size(dev, fifo_size); | |
2022 | if (retval < 0) | |
2023 | return retval; | |
2024 | ||
2025 | } | |
2026 | ||
2027 | block_size = ai_fifo_size(dev) / fifo->num_segments * bytes_in_sample; | |
2028 | ||
2029 | data[1] = block_size; | |
2030 | ||
2031 | return 2; | |
2032 | } | |
2033 | ||
0a85b6f0 MT |
2034 | static int ai_config_master_clock_4020(struct comedi_device *dev, |
2035 | unsigned int *data) | |
88b12a9a | 2036 | { |
681d335a | 2037 | struct pcidas64_private *devpriv = dev->private; |
88b12a9a FMH |
2038 | unsigned int divisor = data[4]; |
2039 | int retval = 0; | |
2040 | ||
2041 | if (divisor < 2) { | |
2042 | divisor = 2; | |
2043 | retval = -EAGAIN; | |
2044 | } | |
2045 | ||
2046 | switch (data[1]) { | |
2047 | case COMEDI_EV_SCAN_BEGIN: | |
681d335a HS |
2048 | devpriv->ext_clock.divisor = divisor; |
2049 | devpriv->ext_clock.chanspec = data[2]; | |
88b12a9a FMH |
2050 | break; |
2051 | default: | |
2052 | return -EINVAL; | |
2053 | break; | |
2054 | } | |
2055 | ||
2056 | data[4] = divisor; | |
2057 | ||
2058 | return retval ? retval : 5; | |
2059 | } | |
2060 | ||
9ef4dea6 | 2061 | /* XXX could add support for 60xx series */ |
da91b269 | 2062 | static int ai_config_master_clock(struct comedi_device *dev, unsigned int *data) |
88b12a9a FMH |
2063 | { |
2064 | ||
2065 | switch (board(dev)->layout) { | |
2066 | case LAYOUT_4020: | |
2067 | return ai_config_master_clock_4020(dev, data); | |
2068 | break; | |
2069 | default: | |
2070 | return -EINVAL; | |
2071 | break; | |
2072 | } | |
2073 | ||
2074 | return -EINVAL; | |
2075 | } | |
2076 | ||
da91b269 | 2077 | static int ai_config_insn(struct comedi_device *dev, struct comedi_subdevice *s, |
0a85b6f0 | 2078 | struct comedi_insn *insn, unsigned int *data) |
88b12a9a FMH |
2079 | { |
2080 | int id = data[0]; | |
2081 | ||
2082 | switch (id) { | |
2083 | case INSN_CONFIG_ALT_SOURCE: | |
2084 | return ai_config_calibration_source(dev, data); | |
2085 | break; | |
2086 | case INSN_CONFIG_BLOCK_SIZE: | |
2087 | return ai_config_block_size(dev, data); | |
2088 | break; | |
2089 | case INSN_CONFIG_TIMER_1: | |
2090 | return ai_config_master_clock(dev, data); | |
2091 | break; | |
2092 | default: | |
2093 | return -EINVAL; | |
2094 | break; | |
2095 | } | |
2096 | return -EINVAL; | |
2097 | } | |
2098 | ||
da91b269 | 2099 | static int ai_cmdtest(struct comedi_device *dev, struct comedi_subdevice *s, |
0a85b6f0 | 2100 | struct comedi_cmd *cmd) |
88b12a9a FMH |
2101 | { |
2102 | int err = 0; | |
88b12a9a FMH |
2103 | unsigned int tmp_arg, tmp_arg2; |
2104 | int i; | |
2105 | int aref; | |
2106 | unsigned int triggers; | |
2107 | ||
27020ffe | 2108 | /* Step 1 : check if triggers are trivially valid */ |
88b12a9a | 2109 | |
27020ffe | 2110 | err |= cfc_check_trigger_src(&cmd->start_src, TRIG_NOW | TRIG_EXT); |
88b12a9a | 2111 | |
88b12a9a FMH |
2112 | triggers = TRIG_TIMER; |
2113 | if (board(dev)->layout == LAYOUT_4020) | |
2114 | triggers |= TRIG_OTHER; | |
2115 | else | |
2116 | triggers |= TRIG_FOLLOW; | |
27020ffe | 2117 | err |= cfc_check_trigger_src(&cmd->scan_begin_src, triggers); |
88b12a9a | 2118 | |
88b12a9a FMH |
2119 | triggers = TRIG_TIMER; |
2120 | if (board(dev)->layout == LAYOUT_4020) | |
2121 | triggers |= TRIG_NOW; | |
2122 | else | |
2123 | triggers |= TRIG_EXT; | |
27020ffe | 2124 | err |= cfc_check_trigger_src(&cmd->convert_src, triggers); |
88b12a9a | 2125 | |
27020ffe HS |
2126 | err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT); |
2127 | err |= cfc_check_trigger_src(&cmd->stop_src, | |
2128 | TRIG_COUNT | TRIG_EXT | TRIG_NONE); | |
88b12a9a FMH |
2129 | |
2130 | if (err) | |
2131 | return 1; | |
2132 | ||
27020ffe | 2133 | /* Step 2a : make sure trigger sources are unique */ |
88b12a9a | 2134 | |
27020ffe HS |
2135 | err |= cfc_check_trigger_is_unique(cmd->start_src); |
2136 | err |= cfc_check_trigger_is_unique(cmd->scan_begin_src); | |
2137 | err |= cfc_check_trigger_is_unique(cmd->convert_src); | |
2138 | err |= cfc_check_trigger_is_unique(cmd->stop_src); | |
2139 | ||
2140 | /* Step 2b : and mutually compatible */ | |
88b12a9a | 2141 | |
88b12a9a | 2142 | if (cmd->convert_src == TRIG_EXT && cmd->scan_begin_src == TRIG_TIMER) |
27020ffe | 2143 | err |= -EINVAL; |
88b12a9a | 2144 | if (cmd->stop_src != TRIG_COUNT && |
0a85b6f0 | 2145 | cmd->stop_src != TRIG_NONE && cmd->stop_src != TRIG_EXT) |
27020ffe | 2146 | err |= -EINVAL; |
88b12a9a FMH |
2147 | |
2148 | if (err) | |
2149 | return 2; | |
2150 | ||
2151 | /* step 3: make sure arguments are trivially compatible */ | |
2152 | ||
2153 | if (cmd->convert_src == TRIG_TIMER) { | |
2154 | if (board(dev)->layout == LAYOUT_4020) { | |
2155 | if (cmd->convert_arg) { | |
2156 | cmd->convert_arg = 0; | |
2157 | err++; | |
2158 | } | |
2159 | } else { | |
2160 | if (cmd->convert_arg < board(dev)->ai_speed) { | |
2161 | cmd->convert_arg = board(dev)->ai_speed; | |
2162 | err++; | |
2163 | } | |
2164 | if (cmd->scan_begin_src == TRIG_TIMER) { | |
9ef4dea6 | 2165 | /* if scans are timed faster than conversion rate allows */ |
88b12a9a | 2166 | if (cmd->convert_arg * cmd->chanlist_len > |
0a85b6f0 | 2167 | cmd->scan_begin_arg) { |
88b12a9a | 2168 | cmd->scan_begin_arg = |
0a85b6f0 MT |
2169 | cmd->convert_arg * |
2170 | cmd->chanlist_len; | |
88b12a9a FMH |
2171 | err++; |
2172 | } | |
2173 | } | |
2174 | } | |
2175 | } | |
2176 | ||
2177 | if (!cmd->chanlist_len) { | |
2178 | cmd->chanlist_len = 1; | |
2179 | err++; | |
2180 | } | |
2181 | if (cmd->scan_end_arg != cmd->chanlist_len) { | |
2182 | cmd->scan_end_arg = cmd->chanlist_len; | |
2183 | err++; | |
2184 | } | |
2185 | ||
2186 | switch (cmd->stop_src) { | |
2187 | case TRIG_EXT: | |
2188 | break; | |
2189 | case TRIG_COUNT: | |
2190 | if (!cmd->stop_arg) { | |
2191 | cmd->stop_arg = 1; | |
2192 | err++; | |
2193 | } | |
2194 | break; | |
2195 | case TRIG_NONE: | |
2196 | if (cmd->stop_arg != 0) { | |
2197 | cmd->stop_arg = 0; | |
2198 | err++; | |
2199 | } | |
2200 | break; | |
2201 | default: | |
2202 | break; | |
2203 | } | |
2204 | ||
2205 | if (err) | |
2206 | return 3; | |
2207 | ||
2208 | /* step 4: fix up any arguments */ | |
2209 | ||
2210 | if (cmd->convert_src == TRIG_TIMER) { | |
2211 | tmp_arg = cmd->convert_arg; | |
2212 | tmp_arg2 = cmd->scan_begin_arg; | |
2213 | check_adc_timing(dev, cmd); | |
2214 | if (tmp_arg != cmd->convert_arg) | |
2215 | err++; | |
2216 | if (tmp_arg2 != cmd->scan_begin_arg) | |
2217 | err++; | |
2218 | } | |
2219 | ||
2220 | if (err) | |
2221 | return 4; | |
2222 | ||
9ef4dea6 | 2223 | /* make sure user is doesn't change analog reference mid chanlist */ |
88b12a9a FMH |
2224 | if (cmd->chanlist) { |
2225 | aref = CR_AREF(cmd->chanlist[0]); | |
2226 | for (i = 1; i < cmd->chanlist_len; i++) { | |
2227 | if (aref != CR_AREF(cmd->chanlist[i])) { | |
2228 | comedi_error(dev, | |
0a85b6f0 | 2229 | "all elements in chanlist must use the same analog reference"); |
88b12a9a FMH |
2230 | err++; |
2231 | break; | |
2232 | } | |
2233 | } | |
9ef4dea6 | 2234 | /* check 4020 chanlist */ |
88b12a9a FMH |
2235 | if (board(dev)->layout == LAYOUT_4020) { |
2236 | unsigned int first_channel = CR_CHAN(cmd->chanlist[0]); | |
2237 | for (i = 1; i < cmd->chanlist_len; i++) { | |
2238 | if (CR_CHAN(cmd->chanlist[i]) != | |
0a85b6f0 | 2239 | first_channel + i) { |
88b12a9a | 2240 | comedi_error(dev, |
0a85b6f0 | 2241 | "chanlist must use consecutive channels"); |
88b12a9a FMH |
2242 | err++; |
2243 | break; | |
2244 | } | |
2245 | } | |
2246 | if (cmd->chanlist_len == 3) { | |
2247 | comedi_error(dev, | |
0a85b6f0 | 2248 | "chanlist cannot be 3 channels long, use 1, 2, or 4 channels"); |
88b12a9a FMH |
2249 | err++; |
2250 | } | |
2251 | } | |
2252 | } | |
2253 | ||
2254 | if (err) | |
2255 | return 5; | |
2256 | ||
2257 | return 0; | |
2258 | } | |
2259 | ||
da91b269 | 2260 | static int use_hw_sample_counter(struct comedi_cmd *cmd) |
88b12a9a | 2261 | { |
9ef4dea6 | 2262 | /* disable for now until I work out a race */ |
88b12a9a FMH |
2263 | return 0; |
2264 | ||
2265 | if (cmd->stop_src == TRIG_COUNT && cmd->stop_arg <= max_counter_value) | |
2266 | return 1; | |
2267 | else | |
2268 | return 0; | |
2269 | } | |
2270 | ||
0a85b6f0 MT |
2271 | static void setup_sample_counters(struct comedi_device *dev, |
2272 | struct comedi_cmd *cmd) | |
88b12a9a | 2273 | { |
681d335a HS |
2274 | struct pcidas64_private *devpriv = dev->private; |
2275 | ||
88b12a9a | 2276 | if (cmd->stop_src == TRIG_COUNT) { |
9ef4dea6 | 2277 | /* set software count */ |
681d335a | 2278 | devpriv->ai_count = cmd->stop_arg * cmd->chanlist_len; |
88b12a9a | 2279 | } |
9ef4dea6 | 2280 | /* load hardware conversion counter */ |
88b12a9a FMH |
2281 | if (use_hw_sample_counter(cmd)) { |
2282 | writew(cmd->stop_arg & 0xffff, | |
681d335a | 2283 | devpriv->main_iobase + ADC_COUNT_LOWER_REG); |
88b12a9a | 2284 | writew((cmd->stop_arg >> 16) & 0xff, |
681d335a | 2285 | devpriv->main_iobase + ADC_COUNT_UPPER_REG); |
88b12a9a | 2286 | } else { |
681d335a | 2287 | writew(1, devpriv->main_iobase + ADC_COUNT_LOWER_REG); |
88b12a9a FMH |
2288 | } |
2289 | } | |
2290 | ||
da91b269 | 2291 | static inline unsigned int dma_transfer_size(struct comedi_device *dev) |
88b12a9a | 2292 | { |
681d335a | 2293 | struct pcidas64_private *devpriv = dev->private; |
88b12a9a FMH |
2294 | unsigned int num_samples; |
2295 | ||
2296 | num_samples = | |
681d335a | 2297 | devpriv->ai_fifo_segment_length * |
0a85b6f0 | 2298 | board(dev)->ai_fifo->sample_packing_ratio; |
88b12a9a FMH |
2299 | if (num_samples > DMA_BUFFER_SIZE / sizeof(uint16_t)) |
2300 | num_samples = DMA_BUFFER_SIZE / sizeof(uint16_t); | |
2301 | ||
2302 | return num_samples; | |
2303 | } | |
2304 | ||
da91b269 | 2305 | static void disable_ai_pacing(struct comedi_device *dev) |
88b12a9a | 2306 | { |
681d335a | 2307 | struct pcidas64_private *devpriv = dev->private; |
88b12a9a FMH |
2308 | unsigned long flags; |
2309 | ||
2310 | disable_ai_interrupts(dev); | |
2311 | ||
5f74ea14 | 2312 | spin_lock_irqsave(&dev->spinlock, flags); |
681d335a HS |
2313 | devpriv->adc_control1_bits &= ~ADC_SW_GATE_BIT; |
2314 | writew(devpriv->adc_control1_bits, | |
2315 | devpriv->main_iobase + ADC_CONTROL1_REG); | |
5f74ea14 | 2316 | spin_unlock_irqrestore(&dev->spinlock, flags); |
88b12a9a FMH |
2317 | |
2318 | /* disable pacing, triggering, etc */ | |
2319 | writew(ADC_DMA_DISABLE_BIT | ADC_SOFT_GATE_BITS | ADC_GATE_LEVEL_BIT, | |
681d335a | 2320 | devpriv->main_iobase + ADC_CONTROL0_REG); |
88b12a9a FMH |
2321 | } |
2322 | ||
da91b269 | 2323 | static void disable_ai_interrupts(struct comedi_device *dev) |
88b12a9a | 2324 | { |
681d335a | 2325 | struct pcidas64_private *devpriv = dev->private; |
88b12a9a FMH |
2326 | unsigned long flags; |
2327 | ||
5f74ea14 | 2328 | spin_lock_irqsave(&dev->spinlock, flags); |
681d335a | 2329 | devpriv->intr_enable_bits &= |
0a85b6f0 MT |
2330 | ~EN_ADC_INTR_SRC_BIT & ~EN_ADC_DONE_INTR_BIT & |
2331 | ~EN_ADC_ACTIVE_INTR_BIT & ~EN_ADC_STOP_INTR_BIT & | |
2332 | ~EN_ADC_OVERRUN_BIT & ~ADC_INTR_SRC_MASK; | |
681d335a HS |
2333 | writew(devpriv->intr_enable_bits, |
2334 | devpriv->main_iobase + INTR_ENABLE_REG); | |
5f74ea14 | 2335 | spin_unlock_irqrestore(&dev->spinlock, flags); |
88b12a9a | 2336 | |
681d335a | 2337 | DEBUG_PRINT("intr enable bits 0x%x\n", devpriv->intr_enable_bits); |
88b12a9a FMH |
2338 | } |
2339 | ||
0a85b6f0 MT |
2340 | static void enable_ai_interrupts(struct comedi_device *dev, |
2341 | const struct comedi_cmd *cmd) | |
88b12a9a | 2342 | { |
681d335a | 2343 | struct pcidas64_private *devpriv = dev->private; |
88b12a9a FMH |
2344 | uint32_t bits; |
2345 | unsigned long flags; | |
2346 | ||
2347 | bits = EN_ADC_OVERRUN_BIT | EN_ADC_DONE_INTR_BIT | | |
0a85b6f0 | 2348 | EN_ADC_ACTIVE_INTR_BIT | EN_ADC_STOP_INTR_BIT; |
9ef4dea6 | 2349 | /* Use pio transfer and interrupt on end of conversion if TRIG_WAKE_EOS flag is set. */ |
88b12a9a | 2350 | if (cmd->flags & TRIG_WAKE_EOS) { |
9ef4dea6 | 2351 | /* 4020 doesn't support pio transfers except for fifo dregs */ |
88b12a9a FMH |
2352 | if (board(dev)->layout != LAYOUT_4020) |
2353 | bits |= ADC_INTR_EOSCAN_BITS | EN_ADC_INTR_SRC_BIT; | |
2354 | } | |
5f74ea14 | 2355 | spin_lock_irqsave(&dev->spinlock, flags); |
681d335a HS |
2356 | devpriv->intr_enable_bits |= bits; |
2357 | writew(devpriv->intr_enable_bits, | |
2358 | devpriv->main_iobase + INTR_ENABLE_REG); | |
2359 | DEBUG_PRINT("intr enable bits 0x%x\n", devpriv->intr_enable_bits); | |
5f74ea14 | 2360 | spin_unlock_irqrestore(&dev->spinlock, flags); |
88b12a9a FMH |
2361 | } |
2362 | ||
da91b269 | 2363 | static uint32_t ai_convert_counter_6xxx(const struct comedi_device *dev, |
0a85b6f0 | 2364 | const struct comedi_cmd *cmd) |
88b12a9a | 2365 | { |
9ef4dea6 | 2366 | /* supposed to load counter with desired divisor minus 3 */ |
88b12a9a FMH |
2367 | return cmd->convert_arg / TIMER_BASE - 3; |
2368 | } | |
2369 | ||
0a85b6f0 MT |
2370 | static uint32_t ai_scan_counter_6xxx(struct comedi_device *dev, |
2371 | struct comedi_cmd *cmd) | |
88b12a9a FMH |
2372 | { |
2373 | uint32_t count; | |
9ef4dea6 | 2374 | /* figure out how long we need to delay at end of scan */ |
88b12a9a FMH |
2375 | switch (cmd->scan_begin_src) { |
2376 | case TRIG_TIMER: | |
2377 | count = (cmd->scan_begin_arg - | |
0a85b6f0 MT |
2378 | (cmd->convert_arg * (cmd->chanlist_len - 1))) |
2379 | / TIMER_BASE; | |
88b12a9a FMH |
2380 | break; |
2381 | case TRIG_FOLLOW: | |
2382 | count = cmd->convert_arg / TIMER_BASE; | |
2383 | break; | |
2384 | default: | |
2385 | return 0; | |
2386 | break; | |
2387 | } | |
2388 | return count - 3; | |
2389 | } | |
2390 | ||
0a85b6f0 MT |
2391 | static uint32_t ai_convert_counter_4020(struct comedi_device *dev, |
2392 | struct comedi_cmd *cmd) | |
88b12a9a | 2393 | { |
681d335a | 2394 | struct pcidas64_private *devpriv = dev->private; |
88b12a9a FMH |
2395 | unsigned int divisor; |
2396 | ||
2397 | switch (cmd->scan_begin_src) { | |
2398 | case TRIG_TIMER: | |
2399 | divisor = cmd->scan_begin_arg / TIMER_BASE; | |
2400 | break; | |
2401 | case TRIG_OTHER: | |
681d335a | 2402 | divisor = devpriv->ext_clock.divisor; |
88b12a9a | 2403 | break; |
9ef4dea6 | 2404 | default: /* should never happen */ |
88b12a9a FMH |
2405 | comedi_error(dev, "bug! failed to set ai pacing!"); |
2406 | divisor = 1000; | |
2407 | break; | |
2408 | } | |
2409 | ||
9ef4dea6 | 2410 | /* supposed to load counter with desired divisor minus 2 for 4020 */ |
88b12a9a FMH |
2411 | return divisor - 2; |
2412 | } | |
2413 | ||
da91b269 | 2414 | static void select_master_clock_4020(struct comedi_device *dev, |
0a85b6f0 | 2415 | const struct comedi_cmd *cmd) |
88b12a9a | 2416 | { |
681d335a HS |
2417 | struct pcidas64_private *devpriv = dev->private; |
2418 | ||
9ef4dea6 | 2419 | /* select internal/external master clock */ |
681d335a | 2420 | devpriv->hw_config_bits &= ~MASTER_CLOCK_4020_MASK; |
88b12a9a | 2421 | if (cmd->scan_begin_src == TRIG_OTHER) { |
681d335a | 2422 | int chanspec = devpriv->ext_clock.chanspec; |
88b12a9a FMH |
2423 | |
2424 | if (CR_CHAN(chanspec)) | |
681d335a | 2425 | devpriv->hw_config_bits |= BNC_CLOCK_4020_BITS; |
88b12a9a | 2426 | else |
681d335a | 2427 | devpriv->hw_config_bits |= EXT_CLOCK_4020_BITS; |
88b12a9a | 2428 | } else { |
681d335a | 2429 | devpriv->hw_config_bits |= INTERNAL_CLOCK_4020_BITS; |
88b12a9a | 2430 | } |
681d335a HS |
2431 | writew(devpriv->hw_config_bits, |
2432 | devpriv->main_iobase + HW_CONFIG_REG); | |
88b12a9a FMH |
2433 | } |
2434 | ||
0a85b6f0 MT |
2435 | static void select_master_clock(struct comedi_device *dev, |
2436 | const struct comedi_cmd *cmd) | |
88b12a9a FMH |
2437 | { |
2438 | switch (board(dev)->layout) { | |
2439 | case LAYOUT_4020: | |
2440 | select_master_clock_4020(dev, cmd); | |
2441 | break; | |
2442 | default: | |
2443 | break; | |
2444 | } | |
2445 | } | |
2446 | ||
0a85b6f0 MT |
2447 | static inline void dma_start_sync(struct comedi_device *dev, |
2448 | unsigned int channel) | |
88b12a9a | 2449 | { |
681d335a | 2450 | struct pcidas64_private *devpriv = dev->private; |
88b12a9a FMH |
2451 | unsigned long flags; |
2452 | ||
9ef4dea6 | 2453 | /* spinlock for plx dma control/status reg */ |
5f74ea14 | 2454 | spin_lock_irqsave(&dev->spinlock, flags); |
88b12a9a FMH |
2455 | if (channel) |
2456 | writeb(PLX_DMA_EN_BIT | PLX_DMA_START_BIT | | |
0a85b6f0 | 2457 | PLX_CLEAR_DMA_INTR_BIT, |
681d335a | 2458 | devpriv->plx9080_iobase + PLX_DMA1_CS_REG); |
88b12a9a FMH |
2459 | else |
2460 | writeb(PLX_DMA_EN_BIT | PLX_DMA_START_BIT | | |
0a85b6f0 | 2461 | PLX_CLEAR_DMA_INTR_BIT, |
681d335a | 2462 | devpriv->plx9080_iobase + PLX_DMA0_CS_REG); |
5f74ea14 | 2463 | spin_unlock_irqrestore(&dev->spinlock, flags); |
88b12a9a FMH |
2464 | } |
2465 | ||
da91b269 | 2466 | static void set_ai_pacing(struct comedi_device *dev, struct comedi_cmd *cmd) |
88b12a9a | 2467 | { |
681d335a | 2468 | struct pcidas64_private *devpriv = dev->private; |
88b12a9a FMH |
2469 | uint32_t convert_counter = 0, scan_counter = 0; |
2470 | ||
2471 | check_adc_timing(dev, cmd); | |
2472 | ||
2473 | select_master_clock(dev, cmd); | |
2474 | ||
2475 | if (board(dev)->layout == LAYOUT_4020) { | |
2476 | convert_counter = ai_convert_counter_4020(dev, cmd); | |
2477 | } else { | |
2478 | convert_counter = ai_convert_counter_6xxx(dev, cmd); | |
2479 | scan_counter = ai_scan_counter_6xxx(dev, cmd); | |
2480 | } | |
2481 | ||
9ef4dea6 | 2482 | /* load lower 16 bits of convert interval */ |
88b12a9a | 2483 | writew(convert_counter & 0xffff, |
681d335a | 2484 | devpriv->main_iobase + ADC_SAMPLE_INTERVAL_LOWER_REG); |
88b12a9a | 2485 | DEBUG_PRINT("convert counter 0x%x\n", convert_counter); |
9ef4dea6 | 2486 | /* load upper 8 bits of convert interval */ |
88b12a9a | 2487 | writew((convert_counter >> 16) & 0xff, |
681d335a | 2488 | devpriv->main_iobase + ADC_SAMPLE_INTERVAL_UPPER_REG); |
9ef4dea6 | 2489 | /* load lower 16 bits of scan delay */ |
88b12a9a | 2490 | writew(scan_counter & 0xffff, |
681d335a | 2491 | devpriv->main_iobase + ADC_DELAY_INTERVAL_LOWER_REG); |
9ef4dea6 | 2492 | /* load upper 8 bits of scan delay */ |
88b12a9a | 2493 | writew((scan_counter >> 16) & 0xff, |
681d335a | 2494 | devpriv->main_iobase + ADC_DELAY_INTERVAL_UPPER_REG); |
88b12a9a FMH |
2495 | DEBUG_PRINT("scan counter 0x%x\n", scan_counter); |
2496 | } | |
2497 | ||
da91b269 | 2498 | static int use_internal_queue_6xxx(const struct comedi_cmd *cmd) |
88b12a9a FMH |
2499 | { |
2500 | int i; | |
2501 | for (i = 0; i + 1 < cmd->chanlist_len; i++) { | |
2502 | if (CR_CHAN(cmd->chanlist[i + 1]) != | |
0a85b6f0 | 2503 | CR_CHAN(cmd->chanlist[i]) + 1) |
88b12a9a FMH |
2504 | return 0; |
2505 | if (CR_RANGE(cmd->chanlist[i + 1]) != | |
0a85b6f0 | 2506 | CR_RANGE(cmd->chanlist[i])) |
88b12a9a FMH |
2507 | return 0; |
2508 | if (CR_AREF(cmd->chanlist[i + 1]) != CR_AREF(cmd->chanlist[i])) | |
2509 | return 0; | |
2510 | } | |
2511 | return 1; | |
2512 | } | |
2513 | ||
0a85b6f0 MT |
2514 | static int setup_channel_queue(struct comedi_device *dev, |
2515 | const struct comedi_cmd *cmd) | |
88b12a9a | 2516 | { |
681d335a | 2517 | struct pcidas64_private *devpriv = dev->private; |
88b12a9a FMH |
2518 | unsigned short bits; |
2519 | int i; | |
2520 | ||
2521 | if (board(dev)->layout != LAYOUT_4020) { | |
2522 | if (use_internal_queue_6xxx(cmd)) { | |
681d335a HS |
2523 | devpriv->hw_config_bits &= ~EXT_QUEUE_BIT; |
2524 | writew(devpriv->hw_config_bits, | |
2525 | devpriv->main_iobase + HW_CONFIG_REG); | |
88b12a9a | 2526 | bits = 0; |
9ef4dea6 | 2527 | /* set channel */ |
88b12a9a | 2528 | bits |= adc_chan_bits(CR_CHAN(cmd->chanlist[0])); |
9ef4dea6 | 2529 | /* set gain */ |
88b12a9a | 2530 | bits |= ai_range_bits_6xxx(dev, |
0a85b6f0 | 2531 | CR_RANGE(cmd->chanlist[0])); |
9ef4dea6 | 2532 | /* set single-ended / differential */ |
88b12a9a | 2533 | bits |= se_diff_bit_6xxx(dev, |
0a85b6f0 MT |
2534 | CR_AREF(cmd->chanlist[0]) == |
2535 | AREF_DIFF); | |
88b12a9a FMH |
2536 | if (CR_AREF(cmd->chanlist[0]) == AREF_COMMON) |
2537 | bits |= ADC_COMMON_BIT; | |
9ef4dea6 | 2538 | /* set stop channel */ |
0a85b6f0 MT |
2539 | writew(adc_chan_bits |
2540 | (CR_CHAN(cmd->chanlist[cmd->chanlist_len - 1])), | |
681d335a | 2541 | devpriv->main_iobase + ADC_QUEUE_HIGH_REG); |
9ef4dea6 | 2542 | /* set start channel, and rest of settings */ |
88b12a9a | 2543 | writew(bits, |
681d335a | 2544 | devpriv->main_iobase + ADC_QUEUE_LOAD_REG); |
88b12a9a | 2545 | } else { |
9ef4dea6 | 2546 | /* use external queue */ |
88b12a9a FMH |
2547 | if (dev->write_subdev && dev->write_subdev->busy) { |
2548 | warn_external_queue(dev); | |
2549 | return -EBUSY; | |
2550 | } | |
681d335a HS |
2551 | devpriv->hw_config_bits |= EXT_QUEUE_BIT; |
2552 | writew(devpriv->hw_config_bits, | |
2553 | devpriv->main_iobase + HW_CONFIG_REG); | |
9ef4dea6 | 2554 | /* clear DAC buffer to prevent weird interactions */ |
88b12a9a | 2555 | writew(0, |
681d335a | 2556 | devpriv->main_iobase + DAC_BUFFER_CLEAR_REG); |
9ef4dea6 | 2557 | /* clear queue pointer */ |
681d335a | 2558 | writew(0, devpriv->main_iobase + ADC_QUEUE_CLEAR_REG); |
9ef4dea6 | 2559 | /* load external queue */ |
88b12a9a FMH |
2560 | for (i = 0; i < cmd->chanlist_len; i++) { |
2561 | bits = 0; | |
9ef4dea6 | 2562 | /* set channel */ |
0a85b6f0 MT |
2563 | bits |= |
2564 | adc_chan_bits(CR_CHAN(cmd->chanlist[i])); | |
9ef4dea6 | 2565 | /* set gain */ |
88b12a9a | 2566 | bits |= ai_range_bits_6xxx(dev, |
0a85b6f0 MT |
2567 | CR_RANGE(cmd-> |
2568 | chanlist | |
2569 | [i])); | |
9ef4dea6 | 2570 | /* set single-ended / differential */ |
88b12a9a | 2571 | bits |= se_diff_bit_6xxx(dev, |
0a85b6f0 MT |
2572 | CR_AREF(cmd-> |
2573 | chanlist[i]) == | |
2574 | AREF_DIFF); | |
88b12a9a FMH |
2575 | if (CR_AREF(cmd->chanlist[i]) == AREF_COMMON) |
2576 | bits |= ADC_COMMON_BIT; | |
9ef4dea6 | 2577 | /* mark end of queue */ |
88b12a9a FMH |
2578 | if (i == cmd->chanlist_len - 1) |
2579 | bits |= QUEUE_EOSCAN_BIT | | |
0a85b6f0 | 2580 | QUEUE_EOSEQ_BIT; |
88b12a9a | 2581 | writew(bits, |
681d335a | 2582 | devpriv->main_iobase + |
0a85b6f0 | 2583 | ADC_QUEUE_FIFO_REG); |
88b12a9a | 2584 | DEBUG_PRINT |
0a85b6f0 MT |
2585 | ("wrote 0x%x to external channel queue\n", |
2586 | bits); | |
88b12a9a FMH |
2587 | } |
2588 | /* doing a queue clear is not specified in board docs, | |
2589 | * but required for reliable operation */ | |
681d335a | 2590 | writew(0, devpriv->main_iobase + ADC_QUEUE_CLEAR_REG); |
9ef4dea6 | 2591 | /* prime queue holding register */ |
681d335a | 2592 | writew(0, devpriv->main_iobase + ADC_QUEUE_LOAD_REG); |
88b12a9a FMH |
2593 | } |
2594 | } else { | |
2595 | unsigned short old_cal_range_bits = | |
681d335a | 2596 | devpriv->i2c_cal_range_bits; |
88b12a9a | 2597 | |
681d335a | 2598 | devpriv->i2c_cal_range_bits &= ~ADC_SRC_4020_MASK; |
9ef4dea6 | 2599 | /* select BNC inputs */ |
681d335a | 2600 | devpriv->i2c_cal_range_bits |= adc_src_4020_bits(4); |
9ef4dea6 | 2601 | /* select ranges */ |
88b12a9a FMH |
2602 | for (i = 0; i < cmd->chanlist_len; i++) { |
2603 | unsigned int channel = CR_CHAN(cmd->chanlist[i]); | |
2604 | unsigned int range = CR_RANGE(cmd->chanlist[i]); | |
2605 | ||
2606 | if (range == 0) | |
681d335a | 2607 | devpriv->i2c_cal_range_bits |= |
0a85b6f0 | 2608 | attenuate_bit(channel); |
88b12a9a | 2609 | else |
681d335a | 2610 | devpriv->i2c_cal_range_bits &= |
0a85b6f0 | 2611 | ~attenuate_bit(channel); |
88b12a9a | 2612 | } |
9ef4dea6 | 2613 | /* update calibration/range i2c register only if necessary, as it is very slow */ |
681d335a HS |
2614 | if (old_cal_range_bits != devpriv->i2c_cal_range_bits) { |
2615 | uint8_t i2c_data = devpriv->i2c_cal_range_bits; | |
88b12a9a | 2616 | i2c_write(dev, RANGE_CAL_I2C_ADDR, &i2c_data, |
0a85b6f0 | 2617 | sizeof(i2c_data)); |
88b12a9a FMH |
2618 | } |
2619 | } | |
2620 | return 0; | |
2621 | } | |
2622 | ||
da91b269 | 2623 | static inline void load_first_dma_descriptor(struct comedi_device *dev, |
0a85b6f0 MT |
2624 | unsigned int dma_channel, |
2625 | unsigned int descriptor_bits) | |
88b12a9a | 2626 | { |
681d335a HS |
2627 | struct pcidas64_private *devpriv = dev->private; |
2628 | ||
88b12a9a FMH |
2629 | /* The transfer size, pci address, and local address registers |
2630 | * are supposedly unused during chained dma, | |
2631 | * but I have found that left over values from last operation | |
2632 | * occasionally cause problems with transfer of first dma | |
2633 | * block. Initializing them to zero seems to fix the problem. */ | |
2634 | if (dma_channel) { | |
2635 | writel(0, | |
681d335a HS |
2636 | devpriv->plx9080_iobase + PLX_DMA1_TRANSFER_SIZE_REG); |
2637 | writel(0, devpriv->plx9080_iobase + PLX_DMA1_PCI_ADDRESS_REG); | |
88b12a9a | 2638 | writel(0, |
681d335a | 2639 | devpriv->plx9080_iobase + PLX_DMA1_LOCAL_ADDRESS_REG); |
88b12a9a | 2640 | writel(descriptor_bits, |
681d335a | 2641 | devpriv->plx9080_iobase + PLX_DMA1_DESCRIPTOR_REG); |
88b12a9a FMH |
2642 | } else { |
2643 | writel(0, | |
681d335a HS |
2644 | devpriv->plx9080_iobase + PLX_DMA0_TRANSFER_SIZE_REG); |
2645 | writel(0, devpriv->plx9080_iobase + PLX_DMA0_PCI_ADDRESS_REG); | |
88b12a9a | 2646 | writel(0, |
681d335a | 2647 | devpriv->plx9080_iobase + PLX_DMA0_LOCAL_ADDRESS_REG); |
88b12a9a | 2648 | writel(descriptor_bits, |
681d335a | 2649 | devpriv->plx9080_iobase + PLX_DMA0_DESCRIPTOR_REG); |
88b12a9a FMH |
2650 | } |
2651 | } | |
2652 | ||
da91b269 | 2653 | static int ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s) |
88b12a9a | 2654 | { |
681d335a | 2655 | struct pcidas64_private *devpriv = dev->private; |
d163679c | 2656 | struct comedi_async *async = s->async; |
ea6d0d4c | 2657 | struct comedi_cmd *cmd = &async->cmd; |
88b12a9a FMH |
2658 | uint32_t bits; |
2659 | unsigned int i; | |
2660 | unsigned long flags; | |
2661 | int retval; | |
2662 | ||
2663 | disable_ai_pacing(dev); | |
2664 | abort_dma(dev, 1); | |
2665 | ||
2666 | retval = setup_channel_queue(dev, cmd); | |
2667 | if (retval < 0) | |
2668 | return retval; | |
2669 | ||
9ef4dea6 | 2670 | /* make sure internal calibration source is turned off */ |
681d335a | 2671 | writew(0, devpriv->main_iobase + CALIBRATION_REG); |
88b12a9a FMH |
2672 | |
2673 | set_ai_pacing(dev, cmd); | |
2674 | ||
2675 | setup_sample_counters(dev, cmd); | |
2676 | ||
2677 | enable_ai_interrupts(dev, cmd); | |
2678 | ||
5f74ea14 | 2679 | spin_lock_irqsave(&dev->spinlock, flags); |
88b12a9a | 2680 | /* set mode, allow conversions through software gate */ |
681d335a HS |
2681 | devpriv->adc_control1_bits |= ADC_SW_GATE_BIT; |
2682 | devpriv->adc_control1_bits &= ~ADC_DITHER_BIT; | |
88b12a9a | 2683 | if (board(dev)->layout != LAYOUT_4020) { |
681d335a | 2684 | devpriv->adc_control1_bits &= ~ADC_MODE_MASK; |
88b12a9a | 2685 | if (cmd->convert_src == TRIG_EXT) |
681d335a | 2686 | devpriv->adc_control1_bits |= adc_mode_bits(13); /* good old mode 13 */ |
88b12a9a | 2687 | else |
681d335a | 2688 | devpriv->adc_control1_bits |= adc_mode_bits(8); /* mode 8. What else could you need? */ |
88b12a9a | 2689 | } else { |
681d335a | 2690 | devpriv->adc_control1_bits &= ~CHANNEL_MODE_4020_MASK; |
88b12a9a | 2691 | if (cmd->chanlist_len == 4) |
681d335a | 2692 | devpriv->adc_control1_bits |= FOUR_CHANNEL_4020_BITS; |
88b12a9a | 2693 | else if (cmd->chanlist_len == 2) |
681d335a HS |
2694 | devpriv->adc_control1_bits |= TWO_CHANNEL_4020_BITS; |
2695 | devpriv->adc_control1_bits &= ~ADC_LO_CHANNEL_4020_MASK; | |
2696 | devpriv->adc_control1_bits |= | |
0a85b6f0 | 2697 | adc_lo_chan_4020_bits(CR_CHAN(cmd->chanlist[0])); |
681d335a HS |
2698 | devpriv->adc_control1_bits &= ~ADC_HI_CHANNEL_4020_MASK; |
2699 | devpriv->adc_control1_bits |= | |
0a85b6f0 MT |
2700 | adc_hi_chan_4020_bits(CR_CHAN |
2701 | (cmd-> | |
2702 | chanlist[cmd->chanlist_len - 1])); | |
88b12a9a | 2703 | } |
681d335a HS |
2704 | writew(devpriv->adc_control1_bits, |
2705 | devpriv->main_iobase + ADC_CONTROL1_REG); | |
2706 | DEBUG_PRINT("control1 bits 0x%x\n", devpriv->adc_control1_bits); | |
5f74ea14 | 2707 | spin_unlock_irqrestore(&dev->spinlock, flags); |
88b12a9a | 2708 | |
9ef4dea6 | 2709 | /* clear adc buffer */ |
681d335a | 2710 | writew(0, devpriv->main_iobase + ADC_BUFFER_CLEAR_REG); |
88b12a9a FMH |
2711 | |
2712 | if ((cmd->flags & TRIG_WAKE_EOS) == 0 || | |
0a85b6f0 | 2713 | board(dev)->layout == LAYOUT_4020) { |
681d335a | 2714 | devpriv->ai_dma_index = 0; |
88b12a9a | 2715 | |
9ef4dea6 | 2716 | /* set dma transfer size */ |
88b12a9a | 2717 | for (i = 0; i < ai_dma_ring_count(board(dev)); i++) |
681d335a | 2718 | devpriv->ai_dma_desc[i].transfer_size = |
0a85b6f0 MT |
2719 | cpu_to_le32(dma_transfer_size(dev) * |
2720 | sizeof(uint16_t)); | |
88b12a9a | 2721 | |
9ef4dea6 | 2722 | /* give location of first dma descriptor */ |
88b12a9a | 2723 | load_first_dma_descriptor(dev, 1, |
681d335a | 2724 | devpriv->ai_dma_desc_bus_addr | |
0a85b6f0 MT |
2725 | PLX_DESC_IN_PCI_BIT | |
2726 | PLX_INTR_TERM_COUNT | | |
2727 | PLX_XFER_LOCAL_TO_PCI); | |
88b12a9a FMH |
2728 | |
2729 | dma_start_sync(dev, 1); | |
2730 | } | |
2731 | ||
2732 | if (board(dev)->layout == LAYOUT_4020) { | |
2733 | /* set source for external triggers */ | |
2734 | bits = 0; | |
2735 | if (cmd->start_src == TRIG_EXT && CR_CHAN(cmd->start_arg)) | |
2736 | bits |= EXT_START_TRIG_BNC_BIT; | |
2737 | if (cmd->stop_src == TRIG_EXT && CR_CHAN(cmd->stop_arg)) | |
2738 | bits |= EXT_STOP_TRIG_BNC_BIT; | |
681d335a | 2739 | writew(bits, devpriv->main_iobase + DAQ_ATRIG_LOW_4020_REG); |
88b12a9a FMH |
2740 | } |
2741 | ||
5f74ea14 | 2742 | spin_lock_irqsave(&dev->spinlock, flags); |
88b12a9a FMH |
2743 | |
2744 | /* enable pacing, triggering, etc */ | |
2745 | bits = ADC_ENABLE_BIT | ADC_SOFT_GATE_BITS | ADC_GATE_LEVEL_BIT; | |
2746 | if (cmd->flags & TRIG_WAKE_EOS) | |
2747 | bits |= ADC_DMA_DISABLE_BIT; | |
9ef4dea6 | 2748 | /* set start trigger */ |
88b12a9a FMH |
2749 | if (cmd->start_src == TRIG_EXT) { |
2750 | bits |= ADC_START_TRIG_EXT_BITS; | |
2751 | if (cmd->start_arg & CR_INVERT) | |
2752 | bits |= ADC_START_TRIG_FALLING_BIT; | |
2753 | } else if (cmd->start_src == TRIG_NOW) | |
2754 | bits |= ADC_START_TRIG_SOFT_BITS; | |
2755 | if (use_hw_sample_counter(cmd)) | |
2756 | bits |= ADC_SAMPLE_COUNTER_EN_BIT; | |
681d335a | 2757 | writew(bits, devpriv->main_iobase + ADC_CONTROL0_REG); |
88b12a9a FMH |
2758 | DEBUG_PRINT("control0 bits 0x%x\n", bits); |
2759 | ||
681d335a | 2760 | devpriv->ai_cmd_running = 1; |
88b12a9a | 2761 | |
5f74ea14 | 2762 | spin_unlock_irqrestore(&dev->spinlock, flags); |
88b12a9a | 2763 | |
25985edc | 2764 | /* start acquisition */ |
88b12a9a | 2765 | if (cmd->start_src == TRIG_NOW) { |
681d335a | 2766 | writew(0, devpriv->main_iobase + ADC_START_REG); |
88b12a9a FMH |
2767 | DEBUG_PRINT("soft trig\n"); |
2768 | } | |
2769 | ||
2770 | return 0; | |
2771 | } | |
2772 | ||
9ef4dea6 | 2773 | /* read num_samples from 16 bit wide ai fifo */ |
da91b269 | 2774 | static void pio_drain_ai_fifo_16(struct comedi_device *dev) |
88b12a9a | 2775 | { |
681d335a | 2776 | struct pcidas64_private *devpriv = dev->private; |
34c43922 | 2777 | struct comedi_subdevice *s = dev->read_subdev; |
d163679c | 2778 | struct comedi_async *async = s->async; |
ea6d0d4c | 2779 | struct comedi_cmd *cmd = &async->cmd; |
88b12a9a FMH |
2780 | unsigned int i; |
2781 | uint16_t prepost_bits; | |
2782 | int read_segment, read_index, write_segment, write_index; | |
2783 | int num_samples; | |
2784 | ||
2785 | do { | |
9ef4dea6 | 2786 | /* get least significant 15 bits */ |
88b12a9a | 2787 | read_index = |
681d335a | 2788 | readw(devpriv->main_iobase + ADC_READ_PNTR_REG) & 0x7fff; |
88b12a9a | 2789 | write_index = |
681d335a | 2790 | readw(devpriv->main_iobase + ADC_WRITE_PNTR_REG) & 0x7fff; |
88b12a9a FMH |
2791 | /* Get most significant bits (grey code). Different boards use different code |
2792 | * so use a scheme that doesn't depend on encoding. This read must | |
2793 | * occur after reading least significant 15 bits to avoid race | |
2794 | * with fifo switching to next segment. */ | |
681d335a | 2795 | prepost_bits = readw(devpriv->main_iobase + PREPOST_REG); |
88b12a9a FMH |
2796 | |
2797 | /* if read and write pointers are not on the same fifo segment, read to the | |
2798 | * end of the read segment */ | |
2799 | read_segment = adc_upper_read_ptr_code(prepost_bits); | |
2800 | write_segment = adc_upper_write_ptr_code(prepost_bits); | |
2801 | ||
2802 | DEBUG_PRINT(" rd seg %i, wrt seg %i, rd idx %i, wrt idx %i\n", | |
0a85b6f0 MT |
2803 | read_segment, write_segment, read_index, |
2804 | write_index); | |
88b12a9a FMH |
2805 | |
2806 | if (read_segment != write_segment) | |
2807 | num_samples = | |
681d335a | 2808 | devpriv->ai_fifo_segment_length - read_index; |
88b12a9a FMH |
2809 | else |
2810 | num_samples = write_index - read_index; | |
2811 | ||
2812 | if (cmd->stop_src == TRIG_COUNT) { | |
681d335a | 2813 | if (devpriv->ai_count == 0) |
88b12a9a | 2814 | break; |
681d335a HS |
2815 | if (num_samples > devpriv->ai_count) |
2816 | num_samples = devpriv->ai_count; | |
90cae794 | 2817 | |
681d335a | 2818 | devpriv->ai_count -= num_samples; |
88b12a9a FMH |
2819 | } |
2820 | ||
2821 | if (num_samples < 0) { | |
f41ad667 IA |
2822 | dev_err(dev->class_dev, |
2823 | "cb_pcidas64: bug! num_samples < 0\n"); | |
88b12a9a FMH |
2824 | break; |
2825 | } | |
2826 | ||
2827 | DEBUG_PRINT(" read %i samples from fifo\n", num_samples); | |
2828 | ||
2829 | for (i = 0; i < num_samples; i++) { | |
2830 | cfc_write_to_buffer(s, | |
681d335a | 2831 | readw(devpriv->main_iobase + |
0a85b6f0 | 2832 | ADC_FIFO_REG)); |
88b12a9a FMH |
2833 | } |
2834 | ||
2835 | } while (read_segment != write_segment); | |
2836 | } | |
2837 | ||
2838 | /* Read from 32 bit wide ai fifo of 4020 - deal with insane grey coding of pointers. | |
2839 | * The pci-4020 hardware only supports | |
2840 | * dma transfers (it only supports the use of pio for draining the last remaining | |
25985edc | 2841 | * points from the fifo when a data acquisition operation has completed). |
88b12a9a | 2842 | */ |
da91b269 | 2843 | static void pio_drain_ai_fifo_32(struct comedi_device *dev) |
88b12a9a | 2844 | { |
681d335a | 2845 | struct pcidas64_private *devpriv = dev->private; |
34c43922 | 2846 | struct comedi_subdevice *s = dev->read_subdev; |
d163679c | 2847 | struct comedi_async *async = s->async; |
ea6d0d4c | 2848 | struct comedi_cmd *cmd = &async->cmd; |
88b12a9a FMH |
2849 | unsigned int i; |
2850 | unsigned int max_transfer = 100000; | |
2851 | uint32_t fifo_data; | |
2852 | int write_code = | |
681d335a | 2853 | readw(devpriv->main_iobase + ADC_WRITE_PNTR_REG) & 0x7fff; |
88b12a9a | 2854 | int read_code = |
681d335a | 2855 | readw(devpriv->main_iobase + ADC_READ_PNTR_REG) & 0x7fff; |
88b12a9a FMH |
2856 | |
2857 | if (cmd->stop_src == TRIG_COUNT) { | |
681d335a HS |
2858 | if (max_transfer > devpriv->ai_count) |
2859 | max_transfer = devpriv->ai_count; | |
90cae794 | 2860 | |
88b12a9a FMH |
2861 | } |
2862 | for (i = 0; read_code != write_code && i < max_transfer;) { | |
681d335a | 2863 | fifo_data = readl(devpriv->dio_counter_iobase + ADC_FIFO_REG); |
88b12a9a FMH |
2864 | cfc_write_to_buffer(s, fifo_data & 0xffff); |
2865 | i++; | |
2866 | if (i < max_transfer) { | |
2867 | cfc_write_to_buffer(s, (fifo_data >> 16) & 0xffff); | |
2868 | i++; | |
2869 | } | |
2870 | read_code = | |
681d335a | 2871 | readw(devpriv->main_iobase + ADC_READ_PNTR_REG) & 0x7fff; |
88b12a9a | 2872 | } |
681d335a | 2873 | devpriv->ai_count -= i; |
88b12a9a FMH |
2874 | } |
2875 | ||
9ef4dea6 | 2876 | /* empty fifo */ |
da91b269 | 2877 | static void pio_drain_ai_fifo(struct comedi_device *dev) |
88b12a9a | 2878 | { |
90cae794 | 2879 | if (board(dev)->layout == LAYOUT_4020) |
88b12a9a | 2880 | pio_drain_ai_fifo_32(dev); |
90cae794 | 2881 | else |
88b12a9a FMH |
2882 | pio_drain_ai_fifo_16(dev); |
2883 | } | |
2884 | ||
da91b269 | 2885 | static void drain_dma_buffers(struct comedi_device *dev, unsigned int channel) |
88b12a9a | 2886 | { |
681d335a | 2887 | struct pcidas64_private *devpriv = dev->private; |
d163679c | 2888 | struct comedi_async *async = dev->read_subdev->async; |
88b12a9a FMH |
2889 | uint32_t next_transfer_addr; |
2890 | int j; | |
2891 | int num_samples = 0; | |
f31d0008 | 2892 | void __iomem *pci_addr_reg; |
88b12a9a FMH |
2893 | |
2894 | if (channel) | |
2895 | pci_addr_reg = | |
681d335a | 2896 | devpriv->plx9080_iobase + PLX_DMA1_PCI_ADDRESS_REG; |
88b12a9a FMH |
2897 | else |
2898 | pci_addr_reg = | |
681d335a | 2899 | devpriv->plx9080_iobase + PLX_DMA0_PCI_ADDRESS_REG; |
88b12a9a | 2900 | |
9ef4dea6 | 2901 | /* loop until we have read all the full buffers */ |
88b12a9a | 2902 | for (j = 0, next_transfer_addr = readl(pci_addr_reg); |
0a85b6f0 | 2903 | (next_transfer_addr < |
681d335a | 2904 | devpriv->ai_buffer_bus_addr[devpriv->ai_dma_index] |
0a85b6f0 | 2905 | || next_transfer_addr >= |
681d335a | 2906 | devpriv->ai_buffer_bus_addr[devpriv->ai_dma_index] + |
0a85b6f0 | 2907 | DMA_BUFFER_SIZE) && j < ai_dma_ring_count(board(dev)); j++) { |
9ef4dea6 | 2908 | /* transfer data from dma buffer to comedi buffer */ |
88b12a9a FMH |
2909 | num_samples = dma_transfer_size(dev); |
2910 | if (async->cmd.stop_src == TRIG_COUNT) { | |
681d335a HS |
2911 | if (num_samples > devpriv->ai_count) |
2912 | num_samples = devpriv->ai_count; | |
2913 | devpriv->ai_count -= num_samples; | |
88b12a9a FMH |
2914 | } |
2915 | cfc_write_array_to_buffer(dev->read_subdev, | |
681d335a | 2916 | devpriv->ai_buffer[devpriv-> |
0a85b6f0 MT |
2917 | ai_dma_index], |
2918 | num_samples * sizeof(uint16_t)); | |
681d335a HS |
2919 | devpriv->ai_dma_index = |
2920 | (devpriv->ai_dma_index + | |
0a85b6f0 | 2921 | 1) % ai_dma_ring_count(board(dev)); |
88b12a9a FMH |
2922 | |
2923 | DEBUG_PRINT("next buffer addr 0x%lx\n", | |
681d335a HS |
2924 | (unsigned long)devpriv-> |
2925 | ai_buffer_bus_addr[devpriv->ai_dma_index]); | |
88b12a9a FMH |
2926 | DEBUG_PRINT("pci addr reg 0x%x\n", next_transfer_addr); |
2927 | } | |
2928 | /* XXX check for dma ring buffer overrun (use end-of-chain bit to mark last | |
2929 | * unused buffer) */ | |
2930 | } | |
2931 | ||
f31d0008 GKH |
2932 | static void handle_ai_interrupt(struct comedi_device *dev, |
2933 | unsigned short status, | |
2934 | unsigned int plx_status) | |
88b12a9a | 2935 | { |
681d335a | 2936 | struct pcidas64_private *devpriv = dev->private; |
34c43922 | 2937 | struct comedi_subdevice *s = dev->read_subdev; |
d163679c | 2938 | struct comedi_async *async = s->async; |
ea6d0d4c | 2939 | struct comedi_cmd *cmd = &async->cmd; |
88b12a9a FMH |
2940 | uint8_t dma1_status; |
2941 | unsigned long flags; | |
2942 | ||
9ef4dea6 | 2943 | /* check for fifo overrun */ |
88b12a9a FMH |
2944 | if (status & ADC_OVERRUN_BIT) { |
2945 | comedi_error(dev, "fifo overrun"); | |
2946 | async->events |= COMEDI_CB_EOA | COMEDI_CB_ERROR; | |
2947 | } | |
25985edc | 2948 | /* spin lock makes sure no one else changes plx dma control reg */ |
5f74ea14 | 2949 | spin_lock_irqsave(&dev->spinlock, flags); |
681d335a | 2950 | dma1_status = readb(devpriv->plx9080_iobase + PLX_DMA1_CS_REG); |
9ef4dea6 | 2951 | if (plx_status & ICS_DMA1_A) { /* dma chan 1 interrupt */ |
88b12a9a | 2952 | writeb((dma1_status & PLX_DMA_EN_BIT) | PLX_CLEAR_DMA_INTR_BIT, |
681d335a | 2953 | devpriv->plx9080_iobase + PLX_DMA1_CS_REG); |
88b12a9a FMH |
2954 | DEBUG_PRINT("dma1 status 0x%x\n", dma1_status); |
2955 | ||
90cae794 | 2956 | if (dma1_status & PLX_DMA_EN_BIT) |
88b12a9a | 2957 | drain_dma_buffers(dev, 1); |
90cae794 | 2958 | |
88b12a9a FMH |
2959 | DEBUG_PRINT(" cleared dma ch1 interrupt\n"); |
2960 | } | |
5f74ea14 | 2961 | spin_unlock_irqrestore(&dev->spinlock, flags); |
88b12a9a FMH |
2962 | |
2963 | if (status & ADC_DONE_BIT) | |
2964 | DEBUG_PRINT("adc done interrupt\n"); | |
2965 | ||
9ef4dea6 | 2966 | /* drain fifo with pio */ |
88b12a9a | 2967 | if ((status & ADC_DONE_BIT) || |
0a85b6f0 MT |
2968 | ((cmd->flags & TRIG_WAKE_EOS) && |
2969 | (status & ADC_INTR_PENDING_BIT) && | |
2970 | (board(dev)->layout != LAYOUT_4020))) { | |
88b12a9a | 2971 | DEBUG_PRINT("pio fifo drain\n"); |
5f74ea14 | 2972 | spin_lock_irqsave(&dev->spinlock, flags); |
681d335a | 2973 | if (devpriv->ai_cmd_running) { |
5f74ea14 | 2974 | spin_unlock_irqrestore(&dev->spinlock, flags); |
88b12a9a FMH |
2975 | pio_drain_ai_fifo(dev); |
2976 | } else | |
5f74ea14 | 2977 | spin_unlock_irqrestore(&dev->spinlock, flags); |
88b12a9a | 2978 | } |
9ef4dea6 | 2979 | /* if we are have all the data, then quit */ |
681d335a | 2980 | if ((cmd->stop_src == TRIG_COUNT && (int)devpriv->ai_count <= 0) || |
0a85b6f0 | 2981 | (cmd->stop_src == TRIG_EXT && (status & ADC_STOP_BIT))) { |
88b12a9a FMH |
2982 | async->events |= COMEDI_CB_EOA; |
2983 | } | |
2984 | ||
2985 | cfc_handle_events(dev, s); | |
2986 | } | |
2987 | ||
da91b269 | 2988 | static inline unsigned int prev_ao_dma_index(struct comedi_device *dev) |
88b12a9a | 2989 | { |
681d335a | 2990 | struct pcidas64_private *devpriv = dev->private; |
88b12a9a FMH |
2991 | unsigned int buffer_index; |
2992 | ||
681d335a | 2993 | if (devpriv->ao_dma_index == 0) |
88b12a9a FMH |
2994 | buffer_index = AO_DMA_RING_COUNT - 1; |
2995 | else | |
681d335a | 2996 | buffer_index = devpriv->ao_dma_index - 1; |
88b12a9a FMH |
2997 | return buffer_index; |
2998 | } | |
2999 | ||
da91b269 | 3000 | static int last_ao_dma_load_completed(struct comedi_device *dev) |
88b12a9a | 3001 | { |
681d335a | 3002 | struct pcidas64_private *devpriv = dev->private; |
88b12a9a FMH |
3003 | unsigned int buffer_index; |
3004 | unsigned int transfer_address; | |
3005 | unsigned short dma_status; | |
3006 | ||
3007 | buffer_index = prev_ao_dma_index(dev); | |
681d335a | 3008 | dma_status = readb(devpriv->plx9080_iobase + PLX_DMA0_CS_REG); |
88b12a9a FMH |
3009 | if ((dma_status & PLX_DMA_DONE_BIT) == 0) |
3010 | return 0; | |
3011 | ||
3012 | transfer_address = | |
681d335a HS |
3013 | readl(devpriv->plx9080_iobase + PLX_DMA0_PCI_ADDRESS_REG); |
3014 | if (transfer_address != devpriv->ao_buffer_bus_addr[buffer_index]) | |
88b12a9a FMH |
3015 | return 0; |
3016 | ||
3017 | return 1; | |
3018 | } | |
3019 | ||
0a85b6f0 MT |
3020 | static int ao_stopped_by_error(struct comedi_device *dev, |
3021 | const struct comedi_cmd *cmd) | |
88b12a9a | 3022 | { |
681d335a HS |
3023 | struct pcidas64_private *devpriv = dev->private; |
3024 | ||
88b12a9a FMH |
3025 | if (cmd->stop_src == TRIG_NONE) |
3026 | return 1; | |
3027 | if (cmd->stop_src == TRIG_COUNT) { | |
681d335a | 3028 | if (devpriv->ao_count) |
88b12a9a FMH |
3029 | return 1; |
3030 | if (last_ao_dma_load_completed(dev) == 0) | |
3031 | return 1; | |
3032 | } | |
3033 | return 0; | |
3034 | } | |
3035 | ||
da91b269 | 3036 | static inline int ao_dma_needs_restart(struct comedi_device *dev, |
0a85b6f0 | 3037 | unsigned short dma_status) |
88b12a9a FMH |
3038 | { |
3039 | if ((dma_status & PLX_DMA_DONE_BIT) == 0 || | |
0a85b6f0 | 3040 | (dma_status & PLX_DMA_EN_BIT) == 0) |
88b12a9a FMH |
3041 | return 0; |
3042 | if (last_ao_dma_load_completed(dev)) | |
3043 | return 0; | |
3044 | ||
3045 | return 1; | |
3046 | } | |
3047 | ||
da91b269 | 3048 | static void restart_ao_dma(struct comedi_device *dev) |
88b12a9a | 3049 | { |
681d335a | 3050 | struct pcidas64_private *devpriv = dev->private; |
88b12a9a FMH |
3051 | unsigned int dma_desc_bits; |
3052 | ||
3053 | dma_desc_bits = | |
681d335a | 3054 | readl(devpriv->plx9080_iobase + PLX_DMA0_DESCRIPTOR_REG); |
88b12a9a FMH |
3055 | dma_desc_bits &= ~PLX_END_OF_CHAIN_BIT; |
3056 | DEBUG_PRINT("restarting ao dma, descriptor reg 0x%x\n", dma_desc_bits); | |
3057 | load_first_dma_descriptor(dev, 0, dma_desc_bits); | |
3058 | ||
3059 | dma_start_sync(dev, 0); | |
3060 | } | |
3061 | ||
0a85b6f0 MT |
3062 | static void handle_ao_interrupt(struct comedi_device *dev, |
3063 | unsigned short status, unsigned int plx_status) | |
88b12a9a | 3064 | { |
681d335a | 3065 | struct pcidas64_private *devpriv = dev->private; |
34c43922 | 3066 | struct comedi_subdevice *s = dev->write_subdev; |
d163679c | 3067 | struct comedi_async *async; |
ea6d0d4c | 3068 | struct comedi_cmd *cmd; |
88b12a9a FMH |
3069 | uint8_t dma0_status; |
3070 | unsigned long flags; | |
3071 | ||
3072 | /* board might not support ao, in which case write_subdev is NULL */ | |
3073 | if (s == NULL) | |
3074 | return; | |
3075 | async = s->async; | |
3076 | cmd = &async->cmd; | |
3077 | ||
25985edc | 3078 | /* spin lock makes sure no one else changes plx dma control reg */ |
5f74ea14 | 3079 | spin_lock_irqsave(&dev->spinlock, flags); |
681d335a | 3080 | dma0_status = readb(devpriv->plx9080_iobase + PLX_DMA0_CS_REG); |
9ef4dea6 | 3081 | if (plx_status & ICS_DMA0_A) { /* dma chan 0 interrupt */ |
88b12a9a | 3082 | if ((dma0_status & PLX_DMA_EN_BIT) |
0a85b6f0 | 3083 | && !(dma0_status & PLX_DMA_DONE_BIT)) |
88b12a9a | 3084 | writeb(PLX_DMA_EN_BIT | PLX_CLEAR_DMA_INTR_BIT, |
681d335a | 3085 | devpriv->plx9080_iobase + PLX_DMA0_CS_REG); |
88b12a9a FMH |
3086 | else |
3087 | writeb(PLX_CLEAR_DMA_INTR_BIT, | |
681d335a | 3088 | devpriv->plx9080_iobase + PLX_DMA0_CS_REG); |
5f74ea14 | 3089 | spin_unlock_irqrestore(&dev->spinlock, flags); |
88b12a9a FMH |
3090 | DEBUG_PRINT("dma0 status 0x%x\n", dma0_status); |
3091 | if (dma0_status & PLX_DMA_EN_BIT) { | |
3092 | load_ao_dma(dev, cmd); | |
3093 | /* try to recover from dma end-of-chain event */ | |
3094 | if (ao_dma_needs_restart(dev, dma0_status)) | |
3095 | restart_ao_dma(dev); | |
3096 | } | |
3097 | DEBUG_PRINT(" cleared dma ch0 interrupt\n"); | |
3098 | } else | |
5f74ea14 | 3099 | spin_unlock_irqrestore(&dev->spinlock, flags); |
88b12a9a FMH |
3100 | |
3101 | if ((status & DAC_DONE_BIT)) { | |
3102 | async->events |= COMEDI_CB_EOA; | |
3103 | if (ao_stopped_by_error(dev, cmd)) | |
3104 | async->events |= COMEDI_CB_ERROR; | |
3105 | DEBUG_PRINT("plx dma0 desc reg 0x%x\n", | |
681d335a | 3106 | readl(devpriv->plx9080_iobase + |
0a85b6f0 | 3107 | PLX_DMA0_DESCRIPTOR_REG)); |
88b12a9a | 3108 | DEBUG_PRINT("plx dma0 address reg 0x%x\n", |
681d335a | 3109 | readl(devpriv->plx9080_iobase + |
0a85b6f0 | 3110 | PLX_DMA0_PCI_ADDRESS_REG)); |
88b12a9a FMH |
3111 | } |
3112 | cfc_handle_events(dev, s); | |
3113 | } | |
3114 | ||
70265d24 | 3115 | static irqreturn_t handle_interrupt(int irq, void *d) |
88b12a9a | 3116 | { |
71b5f4f1 | 3117 | struct comedi_device *dev = d; |
681d335a | 3118 | struct pcidas64_private *devpriv = dev->private; |
88b12a9a FMH |
3119 | unsigned short status; |
3120 | uint32_t plx_status; | |
3121 | uint32_t plx_bits; | |
3122 | ||
681d335a HS |
3123 | plx_status = readl(devpriv->plx9080_iobase + PLX_INTRCS_REG); |
3124 | status = readw(devpriv->main_iobase + HW_STATUS_REG); | |
88b12a9a FMH |
3125 | |
3126 | DEBUG_PRINT("cb_pcidas64: hw status 0x%x ", status); | |
3127 | DEBUG_PRINT("plx status 0x%x\n", plx_status); | |
3128 | ||
3129 | /* an interrupt before all the postconfig stuff gets done could | |
3130 | * cause a NULL dereference if we continue through the | |
3131 | * interrupt handler */ | |
3132 | if (dev->attached == 0) { | |
3133 | DEBUG_PRINT("cb_pcidas64: premature interrupt, ignoring", | |
0a85b6f0 | 3134 | status); |
88b12a9a FMH |
3135 | return IRQ_HANDLED; |
3136 | } | |
3137 | handle_ai_interrupt(dev, status, plx_status); | |
3138 | handle_ao_interrupt(dev, status, plx_status); | |
3139 | ||
9ef4dea6 BP |
3140 | /* clear possible plx9080 interrupt sources */ |
3141 | if (plx_status & ICS_LDIA) { /* clear local doorbell interrupt */ | |
681d335a HS |
3142 | plx_bits = readl(devpriv->plx9080_iobase + PLX_DBR_OUT_REG); |
3143 | writel(plx_bits, devpriv->plx9080_iobase + PLX_DBR_OUT_REG); | |
88b12a9a FMH |
3144 | DEBUG_PRINT(" cleared local doorbell bits 0x%x\n", plx_bits); |
3145 | } | |
3146 | ||
3147 | DEBUG_PRINT("exiting handler\n"); | |
3148 | ||
3149 | return IRQ_HANDLED; | |
3150 | } | |
3151 | ||
f31d0008 | 3152 | static void abort_dma(struct comedi_device *dev, unsigned int channel) |
88b12a9a | 3153 | { |
681d335a | 3154 | struct pcidas64_private *devpriv = dev->private; |
88b12a9a FMH |
3155 | unsigned long flags; |
3156 | ||
9ef4dea6 | 3157 | /* spinlock for plx dma control/status reg */ |
5f74ea14 | 3158 | spin_lock_irqsave(&dev->spinlock, flags); |
88b12a9a | 3159 | |
681d335a | 3160 | plx9080_abort_dma(devpriv->plx9080_iobase, channel); |
88b12a9a | 3161 | |
5f74ea14 | 3162 | spin_unlock_irqrestore(&dev->spinlock, flags); |
88b12a9a FMH |
3163 | } |
3164 | ||
da91b269 | 3165 | static int ai_cancel(struct comedi_device *dev, struct comedi_subdevice *s) |
88b12a9a | 3166 | { |
681d335a | 3167 | struct pcidas64_private *devpriv = dev->private; |
88b12a9a FMH |
3168 | unsigned long flags; |
3169 | ||
5f74ea14 | 3170 | spin_lock_irqsave(&dev->spinlock, flags); |
681d335a | 3171 | if (devpriv->ai_cmd_running == 0) { |
5f74ea14 | 3172 | spin_unlock_irqrestore(&dev->spinlock, flags); |
88b12a9a FMH |
3173 | return 0; |
3174 | } | |
681d335a | 3175 | devpriv->ai_cmd_running = 0; |
5f74ea14 | 3176 | spin_unlock_irqrestore(&dev->spinlock, flags); |
88b12a9a FMH |
3177 | |
3178 | disable_ai_pacing(dev); | |
3179 | ||
3180 | abort_dma(dev, 1); | |
3181 | ||
3182 | DEBUG_PRINT("ai canceled\n"); | |
3183 | return 0; | |
3184 | } | |
3185 | ||
da91b269 | 3186 | static int ao_winsn(struct comedi_device *dev, struct comedi_subdevice *s, |
0a85b6f0 | 3187 | struct comedi_insn *insn, unsigned int *data) |
88b12a9a | 3188 | { |
681d335a | 3189 | struct pcidas64_private *devpriv = dev->private; |
88b12a9a FMH |
3190 | int chan = CR_CHAN(insn->chanspec); |
3191 | int range = CR_RANGE(insn->chanspec); | |
3192 | ||
9ef4dea6 | 3193 | /* do some initializing */ |
681d335a | 3194 | writew(0, devpriv->main_iobase + DAC_CONTROL0_REG); |
88b12a9a | 3195 | |
9ef4dea6 | 3196 | /* set range */ |
681d335a HS |
3197 | set_dac_range_bits(dev, &devpriv->dac_control1_bits, chan, range); |
3198 | writew(devpriv->dac_control1_bits, | |
3199 | devpriv->main_iobase + DAC_CONTROL1_REG); | |
88b12a9a | 3200 | |
9ef4dea6 | 3201 | /* write to channel */ |
88b12a9a FMH |
3202 | if (board(dev)->layout == LAYOUT_4020) { |
3203 | writew(data[0] & 0xff, | |
681d335a | 3204 | devpriv->main_iobase + dac_lsb_4020_reg(chan)); |
88b12a9a | 3205 | writew((data[0] >> 8) & 0xf, |
681d335a | 3206 | devpriv->main_iobase + dac_msb_4020_reg(chan)); |
88b12a9a | 3207 | } else { |
681d335a | 3208 | writew(data[0], devpriv->main_iobase + dac_convert_reg(chan)); |
88b12a9a FMH |
3209 | } |
3210 | ||
9ef4dea6 | 3211 | /* remember output value */ |
681d335a | 3212 | devpriv->ao_value[chan] = data[0]; |
88b12a9a FMH |
3213 | |
3214 | return 1; | |
3215 | } | |
3216 | ||
0a85b6f0 MT |
3217 | static int ao_readback_insn(struct comedi_device *dev, |
3218 | struct comedi_subdevice *s, | |
3219 | struct comedi_insn *insn, unsigned int *data) | |
88b12a9a | 3220 | { |
681d335a HS |
3221 | struct pcidas64_private *devpriv = dev->private; |
3222 | ||
3223 | data[0] = devpriv->ao_value[CR_CHAN(insn->chanspec)]; | |
88b12a9a FMH |
3224 | |
3225 | return 1; | |
3226 | } | |
3227 | ||
0a85b6f0 MT |
3228 | static void set_dac_control0_reg(struct comedi_device *dev, |
3229 | const struct comedi_cmd *cmd) | |
88b12a9a | 3230 | { |
681d335a | 3231 | struct pcidas64_private *devpriv = dev->private; |
88b12a9a | 3232 | unsigned int bits = DAC_ENABLE_BIT | WAVEFORM_GATE_LEVEL_BIT | |
0a85b6f0 | 3233 | WAVEFORM_GATE_ENABLE_BIT | WAVEFORM_GATE_SELECT_BIT; |
88b12a9a FMH |
3234 | |
3235 | if (cmd->start_src == TRIG_EXT) { | |
3236 | bits |= WAVEFORM_TRIG_EXT_BITS; | |
3237 | if (cmd->start_arg & CR_INVERT) | |
3238 | bits |= WAVEFORM_TRIG_FALLING_BIT; | |
3239 | } else { | |
3240 | bits |= WAVEFORM_TRIG_SOFT_BITS; | |
3241 | } | |
3242 | if (cmd->scan_begin_src == TRIG_EXT) { | |
3243 | bits |= DAC_EXT_UPDATE_ENABLE_BIT; | |
3244 | if (cmd->scan_begin_arg & CR_INVERT) | |
3245 | bits |= DAC_EXT_UPDATE_FALLING_BIT; | |
3246 | } | |
681d335a | 3247 | writew(bits, devpriv->main_iobase + DAC_CONTROL0_REG); |
88b12a9a FMH |
3248 | } |
3249 | ||
0a85b6f0 MT |
3250 | static void set_dac_control1_reg(struct comedi_device *dev, |
3251 | const struct comedi_cmd *cmd) | |
88b12a9a | 3252 | { |
681d335a | 3253 | struct pcidas64_private *devpriv = dev->private; |
88b12a9a FMH |
3254 | int i; |
3255 | ||
3256 | for (i = 0; i < cmd->chanlist_len; i++) { | |
3257 | int channel, range; | |
3258 | ||
3259 | channel = CR_CHAN(cmd->chanlist[i]); | |
3260 | range = CR_RANGE(cmd->chanlist[i]); | |
681d335a | 3261 | set_dac_range_bits(dev, &devpriv->dac_control1_bits, channel, |
0a85b6f0 | 3262 | range); |
88b12a9a | 3263 | } |
681d335a HS |
3264 | devpriv->dac_control1_bits |= DAC_SW_GATE_BIT; |
3265 | writew(devpriv->dac_control1_bits, | |
3266 | devpriv->main_iobase + DAC_CONTROL1_REG); | |
88b12a9a FMH |
3267 | } |
3268 | ||
0a85b6f0 MT |
3269 | static void set_dac_select_reg(struct comedi_device *dev, |
3270 | const struct comedi_cmd *cmd) | |
88b12a9a | 3271 | { |
681d335a | 3272 | struct pcidas64_private *devpriv = dev->private; |
88b12a9a FMH |
3273 | uint16_t bits; |
3274 | unsigned int first_channel, last_channel; | |
3275 | ||
3276 | first_channel = CR_CHAN(cmd->chanlist[0]); | |
3277 | last_channel = CR_CHAN(cmd->chanlist[cmd->chanlist_len - 1]); | |
3278 | if (last_channel < first_channel) | |
3279 | comedi_error(dev, "bug! last ao channel < first ao channel"); | |
3280 | ||
3281 | bits = (first_channel & 0x7) | (last_channel & 0x7) << 3; | |
3282 | ||
681d335a | 3283 | writew(bits, devpriv->main_iobase + DAC_SELECT_REG); |
88b12a9a FMH |
3284 | } |
3285 | ||
0a85b6f0 MT |
3286 | static void set_dac_interval_regs(struct comedi_device *dev, |
3287 | const struct comedi_cmd *cmd) | |
88b12a9a | 3288 | { |
681d335a | 3289 | struct pcidas64_private *devpriv = dev->private; |
88b12a9a FMH |
3290 | unsigned int divisor; |
3291 | ||
3292 | if (cmd->scan_begin_src != TRIG_TIMER) | |
3293 | return; | |
3294 | ||
3295 | divisor = get_ao_divisor(cmd->scan_begin_arg, cmd->flags); | |
3296 | if (divisor > max_counter_value) { | |
3297 | comedi_error(dev, "bug! ao divisor too big"); | |
3298 | divisor = max_counter_value; | |
3299 | } | |
3300 | writew(divisor & 0xffff, | |
681d335a | 3301 | devpriv->main_iobase + DAC_SAMPLE_INTERVAL_LOWER_REG); |
88b12a9a | 3302 | writew((divisor >> 16) & 0xff, |
681d335a | 3303 | devpriv->main_iobase + DAC_SAMPLE_INTERVAL_UPPER_REG); |
88b12a9a FMH |
3304 | } |
3305 | ||
da91b269 | 3306 | static unsigned int load_ao_dma_buffer(struct comedi_device *dev, |
0a85b6f0 | 3307 | const struct comedi_cmd *cmd) |
88b12a9a | 3308 | { |
681d335a | 3309 | struct pcidas64_private *devpriv = dev->private; |
88b12a9a FMH |
3310 | unsigned int num_bytes, buffer_index, prev_buffer_index; |
3311 | unsigned int next_bits; | |
3312 | ||
681d335a | 3313 | buffer_index = devpriv->ao_dma_index; |
88b12a9a FMH |
3314 | prev_buffer_index = prev_ao_dma_index(dev); |
3315 | ||
3316 | DEBUG_PRINT("attempting to load ao buffer %i (0x%x)\n", buffer_index, | |
681d335a | 3317 | devpriv->ao_buffer_bus_addr[buffer_index]); |
88b12a9a FMH |
3318 | |
3319 | num_bytes = comedi_buf_read_n_available(dev->write_subdev->async); | |
3320 | if (num_bytes > DMA_BUFFER_SIZE) | |
3321 | num_bytes = DMA_BUFFER_SIZE; | |
681d335a HS |
3322 | if (cmd->stop_src == TRIG_COUNT && num_bytes > devpriv->ao_count) |
3323 | num_bytes = devpriv->ao_count; | |
88b12a9a FMH |
3324 | num_bytes -= num_bytes % bytes_in_sample; |
3325 | ||
3326 | if (num_bytes == 0) | |
3327 | return 0; | |
3328 | ||
3329 | DEBUG_PRINT("loading %i bytes\n", num_bytes); | |
3330 | ||
3331 | num_bytes = cfc_read_array_from_buffer(dev->write_subdev, | |
681d335a | 3332 | devpriv-> |
0a85b6f0 MT |
3333 | ao_buffer[buffer_index], |
3334 | num_bytes); | |
681d335a | 3335 | devpriv->ao_dma_desc[buffer_index].transfer_size = |
0a85b6f0 | 3336 | cpu_to_le32(num_bytes); |
88b12a9a | 3337 | /* set end of chain bit so we catch underruns */ |
681d335a | 3338 | next_bits = le32_to_cpu(devpriv->ao_dma_desc[buffer_index].next); |
88b12a9a | 3339 | next_bits |= PLX_END_OF_CHAIN_BIT; |
681d335a | 3340 | devpriv->ao_dma_desc[buffer_index].next = cpu_to_le32(next_bits); |
88b12a9a FMH |
3341 | /* clear end of chain bit on previous buffer now that we have set it |
3342 | * for the last buffer */ | |
681d335a | 3343 | next_bits = le32_to_cpu(devpriv->ao_dma_desc[prev_buffer_index].next); |
88b12a9a | 3344 | next_bits &= ~PLX_END_OF_CHAIN_BIT; |
681d335a | 3345 | devpriv->ao_dma_desc[prev_buffer_index].next = cpu_to_le32(next_bits); |
88b12a9a | 3346 | |
681d335a HS |
3347 | devpriv->ao_dma_index = (buffer_index + 1) % AO_DMA_RING_COUNT; |
3348 | devpriv->ao_count -= num_bytes; | |
88b12a9a FMH |
3349 | |
3350 | return num_bytes; | |
3351 | } | |
3352 | ||
da91b269 | 3353 | static void load_ao_dma(struct comedi_device *dev, const struct comedi_cmd *cmd) |
88b12a9a | 3354 | { |
681d335a | 3355 | struct pcidas64_private *devpriv = dev->private; |
88b12a9a FMH |
3356 | unsigned int num_bytes; |
3357 | unsigned int next_transfer_addr; | |
f31d0008 | 3358 | void __iomem *pci_addr_reg = |
681d335a | 3359 | devpriv->plx9080_iobase + PLX_DMA0_PCI_ADDRESS_REG; |
88b12a9a FMH |
3360 | unsigned int buffer_index; |
3361 | ||
3362 | do { | |
681d335a | 3363 | buffer_index = devpriv->ao_dma_index; |
88b12a9a FMH |
3364 | /* don't overwrite data that hasn't been transferred yet */ |
3365 | next_transfer_addr = readl(pci_addr_reg); | |
3366 | if (next_transfer_addr >= | |
681d335a | 3367 | devpriv->ao_buffer_bus_addr[buffer_index] |
0a85b6f0 | 3368 | && next_transfer_addr < |
681d335a | 3369 | devpriv->ao_buffer_bus_addr[buffer_index] + |
0a85b6f0 | 3370 | DMA_BUFFER_SIZE) |
88b12a9a FMH |
3371 | return; |
3372 | num_bytes = load_ao_dma_buffer(dev, cmd); | |
3373 | } while (num_bytes >= DMA_BUFFER_SIZE); | |
3374 | } | |
3375 | ||
da91b269 | 3376 | static int prep_ao_dma(struct comedi_device *dev, const struct comedi_cmd *cmd) |
88b12a9a | 3377 | { |
681d335a | 3378 | struct pcidas64_private *devpriv = dev->private; |
88b12a9a FMH |
3379 | unsigned int num_bytes; |
3380 | int i; | |
3381 | ||
3382 | /* clear queue pointer too, since external queue has | |
3383 | * weird interactions with ao fifo */ | |
681d335a HS |
3384 | writew(0, devpriv->main_iobase + ADC_QUEUE_CLEAR_REG); |
3385 | writew(0, devpriv->main_iobase + DAC_BUFFER_CLEAR_REG); | |
88b12a9a FMH |
3386 | |
3387 | num_bytes = (DAC_FIFO_SIZE / 2) * bytes_in_sample; | |
3388 | if (cmd->stop_src == TRIG_COUNT && | |
681d335a HS |
3389 | num_bytes / bytes_in_sample > devpriv->ao_count) |
3390 | num_bytes = devpriv->ao_count * bytes_in_sample; | |
88b12a9a | 3391 | num_bytes = cfc_read_array_from_buffer(dev->write_subdev, |
681d335a | 3392 | devpriv->ao_bounce_buffer, |
0a85b6f0 | 3393 | num_bytes); |
88b12a9a | 3394 | for (i = 0; i < num_bytes / bytes_in_sample; i++) { |
681d335a HS |
3395 | writew(devpriv->ao_bounce_buffer[i], |
3396 | devpriv->main_iobase + DAC_FIFO_REG); | |
88b12a9a | 3397 | } |
681d335a HS |
3398 | devpriv->ao_count -= num_bytes / bytes_in_sample; |
3399 | if (cmd->stop_src == TRIG_COUNT && devpriv->ao_count == 0) | |
88b12a9a FMH |
3400 | return 0; |
3401 | num_bytes = load_ao_dma_buffer(dev, cmd); | |
3402 | if (num_bytes == 0) | |
3403 | return -1; | |
3404 | if (num_bytes >= DMA_BUFFER_SIZE) ; | |
3405 | load_ao_dma(dev, cmd); | |
3406 | ||
3407 | dma_start_sync(dev, 0); | |
3408 | ||
3409 | return 0; | |
3410 | } | |
3411 | ||
da91b269 | 3412 | static inline int external_ai_queue_in_use(struct comedi_device *dev) |
88b12a9a FMH |
3413 | { |
3414 | if (dev->read_subdev->busy) | |
3415 | return 0; | |
3416 | if (board(dev)->layout == LAYOUT_4020) | |
3417 | return 0; | |
3418 | else if (use_internal_queue_6xxx(&dev->read_subdev->async->cmd)) | |
3419 | return 0; | |
3420 | return 1; | |
3421 | } | |
3422 | ||
da91b269 | 3423 | static int ao_cmd(struct comedi_device *dev, struct comedi_subdevice *s) |
88b12a9a | 3424 | { |
681d335a | 3425 | struct pcidas64_private *devpriv = dev->private; |
ea6d0d4c | 3426 | struct comedi_cmd *cmd = &s->async->cmd; |
88b12a9a FMH |
3427 | |
3428 | if (external_ai_queue_in_use(dev)) { | |
3429 | warn_external_queue(dev); | |
3430 | return -EBUSY; | |
3431 | } | |
3432 | /* disable analog output system during setup */ | |
681d335a | 3433 | writew(0x0, devpriv->main_iobase + DAC_CONTROL0_REG); |
88b12a9a | 3434 | |
681d335a HS |
3435 | devpriv->ao_dma_index = 0; |
3436 | devpriv->ao_count = cmd->stop_arg * cmd->chanlist_len; | |
88b12a9a FMH |
3437 | |
3438 | set_dac_select_reg(dev, cmd); | |
3439 | set_dac_interval_regs(dev, cmd); | |
681d335a | 3440 | load_first_dma_descriptor(dev, 0, devpriv->ao_dma_desc_bus_addr | |
0a85b6f0 | 3441 | PLX_DESC_IN_PCI_BIT | PLX_INTR_TERM_COUNT); |
88b12a9a FMH |
3442 | |
3443 | set_dac_control1_reg(dev, cmd); | |
3444 | s->async->inttrig = ao_inttrig; | |
3445 | ||
3446 | return 0; | |
3447 | } | |
3448 | ||
da91b269 | 3449 | static int ao_inttrig(struct comedi_device *dev, struct comedi_subdevice *s, |
0a85b6f0 | 3450 | unsigned int trig_num) |
88b12a9a | 3451 | { |
681d335a | 3452 | struct pcidas64_private *devpriv = dev->private; |
ea6d0d4c | 3453 | struct comedi_cmd *cmd = &s->async->cmd; |
88b12a9a FMH |
3454 | int retval; |
3455 | ||
3456 | if (trig_num != 0) | |
3457 | return -EINVAL; | |
3458 | ||
3459 | retval = prep_ao_dma(dev, cmd); | |
3460 | if (retval < 0) | |
3461 | return -EPIPE; | |
3462 | ||
3463 | set_dac_control0_reg(dev, cmd); | |
3464 | ||
3465 | if (cmd->start_src == TRIG_INT) | |
681d335a | 3466 | writew(0, devpriv->main_iobase + DAC_START_REG); |
88b12a9a FMH |
3467 | |
3468 | s->async->inttrig = NULL; | |
3469 | ||
3470 | return 0; | |
3471 | } | |
3472 | ||
da91b269 | 3473 | static int ao_cmdtest(struct comedi_device *dev, struct comedi_subdevice *s, |
0a85b6f0 | 3474 | struct comedi_cmd *cmd) |
88b12a9a FMH |
3475 | { |
3476 | int err = 0; | |
88b12a9a FMH |
3477 | unsigned int tmp_arg; |
3478 | int i; | |
3479 | ||
27020ffe | 3480 | /* Step 1 : check if triggers are trivially valid */ |
88b12a9a | 3481 | |
27020ffe HS |
3482 | err |= cfc_check_trigger_src(&cmd->start_src, TRIG_INT | TRIG_EXT); |
3483 | err |= cfc_check_trigger_src(&cmd->scan_begin_src, | |
3484 | TRIG_TIMER | TRIG_EXT); | |
3485 | err |= cfc_check_trigger_src(&cmd->convert_src, TRIG_NOW); | |
3486 | err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT); | |
3487 | err |= cfc_check_trigger_src(&cmd->stop_src, TRIG_NONE); | |
88b12a9a FMH |
3488 | |
3489 | if (err) | |
3490 | return 1; | |
3491 | ||
27020ffe | 3492 | /* Step 2a : make sure trigger sources are unique */ |
88b12a9a | 3493 | |
27020ffe HS |
3494 | err |= cfc_check_trigger_is_unique(cmd->start_src); |
3495 | err |= cfc_check_trigger_is_unique(cmd->scan_begin_src); | |
3496 | ||
3497 | /* Step 2b : and mutually compatible */ | |
88b12a9a | 3498 | |
88b12a9a | 3499 | if (cmd->convert_src == TRIG_EXT && cmd->scan_begin_src == TRIG_TIMER) |
27020ffe | 3500 | err |= -EINVAL; |
88b12a9a | 3501 | if (cmd->stop_src != TRIG_COUNT && |
0a85b6f0 | 3502 | cmd->stop_src != TRIG_NONE && cmd->stop_src != TRIG_EXT) |
27020ffe | 3503 | err |= -EINVAL; |
88b12a9a FMH |
3504 | |
3505 | if (err) | |
3506 | return 2; | |
3507 | ||
3508 | /* step 3: make sure arguments are trivially compatible */ | |
3509 | ||
3510 | if (cmd->scan_begin_src == TRIG_TIMER) { | |
3511 | if (cmd->scan_begin_arg < board(dev)->ao_scan_speed) { | |
3512 | cmd->scan_begin_arg = board(dev)->ao_scan_speed; | |
3513 | err++; | |
3514 | } | |
3515 | if (get_ao_divisor(cmd->scan_begin_arg, | |
0a85b6f0 | 3516 | cmd->flags) > max_counter_value) { |
88b12a9a | 3517 | cmd->scan_begin_arg = |
0a85b6f0 | 3518 | (max_counter_value + 2) * TIMER_BASE; |
88b12a9a FMH |
3519 | err++; |
3520 | } | |
3521 | } | |
3522 | ||
3523 | if (!cmd->chanlist_len) { | |
3524 | cmd->chanlist_len = 1; | |
3525 | err++; | |
3526 | } | |
3527 | if (cmd->scan_end_arg != cmd->chanlist_len) { | |
3528 | cmd->scan_end_arg = cmd->chanlist_len; | |
3529 | err++; | |
3530 | } | |
3531 | ||
3532 | if (err) | |
3533 | return 3; | |
3534 | ||
3535 | /* step 4: fix up any arguments */ | |
3536 | ||
3537 | if (cmd->scan_begin_src == TRIG_TIMER) { | |
3538 | tmp_arg = cmd->scan_begin_arg; | |
3539 | cmd->scan_begin_arg = | |
0a85b6f0 | 3540 | get_divisor(cmd->scan_begin_arg, cmd->flags) * TIMER_BASE; |
88b12a9a FMH |
3541 | if (tmp_arg != cmd->scan_begin_arg) |
3542 | err++; | |
3543 | } | |
3544 | ||
3545 | if (err) | |
3546 | return 4; | |
3547 | ||
3548 | if (cmd->chanlist) { | |
3549 | unsigned int first_channel = CR_CHAN(cmd->chanlist[0]); | |
3550 | for (i = 1; i < cmd->chanlist_len; i++) { | |
3551 | if (CR_CHAN(cmd->chanlist[i]) != first_channel + i) { | |
3552 | comedi_error(dev, | |
0a85b6f0 | 3553 | "chanlist must use consecutive channels"); |
88b12a9a FMH |
3554 | err++; |
3555 | break; | |
3556 | } | |
3557 | } | |
3558 | } | |
3559 | ||
3560 | if (err) | |
3561 | return 5; | |
3562 | ||
3563 | return 0; | |
3564 | } | |
3565 | ||
da91b269 | 3566 | static int ao_cancel(struct comedi_device *dev, struct comedi_subdevice *s) |
88b12a9a | 3567 | { |
681d335a HS |
3568 | struct pcidas64_private *devpriv = dev->private; |
3569 | ||
3570 | writew(0x0, devpriv->main_iobase + DAC_CONTROL0_REG); | |
88b12a9a FMH |
3571 | abort_dma(dev, 0); |
3572 | return 0; | |
3573 | } | |
3574 | ||
318a5b2a | 3575 | static int dio_callback(int dir, int port, int data, unsigned long arg) |
88b12a9a | 3576 | { |
318a5b2a | 3577 | void __iomem *iobase = (void __iomem *)arg; |
88b12a9a | 3578 | if (dir) { |
f31d0008 | 3579 | writeb(data, iobase + port); |
88b12a9a FMH |
3580 | DEBUG_PRINT("wrote 0x%x to port %i\n", data, port); |
3581 | return 0; | |
3582 | } else { | |
f31d0008 | 3583 | return readb(iobase + port); |
88b12a9a FMH |
3584 | } |
3585 | } | |
3586 | ||
318a5b2a | 3587 | static int dio_callback_4020(int dir, int port, int data, unsigned long arg) |
88b12a9a | 3588 | { |
318a5b2a | 3589 | void __iomem *iobase = (void __iomem *)arg; |
88b12a9a | 3590 | if (dir) { |
f31d0008 | 3591 | writew(data, iobase + 2 * port); |
88b12a9a FMH |
3592 | return 0; |
3593 | } else { | |
f31d0008 | 3594 | return readw(iobase + 2 * port); |
88b12a9a FMH |
3595 | } |
3596 | } | |
3597 | ||
da91b269 | 3598 | static int di_rbits(struct comedi_device *dev, struct comedi_subdevice *s, |
0a85b6f0 | 3599 | struct comedi_insn *insn, unsigned int *data) |
88b12a9a | 3600 | { |
681d335a | 3601 | struct pcidas64_private *devpriv = dev->private; |
790c5541 | 3602 | unsigned int bits; |
88b12a9a | 3603 | |
681d335a | 3604 | bits = readb(devpriv->dio_counter_iobase + DI_REG); |
88b12a9a FMH |
3605 | bits &= 0xf; |
3606 | data[1] = bits; | |
3607 | data[0] = 0; | |
3608 | ||
a2714e3e | 3609 | return insn->n; |
88b12a9a FMH |
3610 | } |
3611 | ||
da91b269 | 3612 | static int do_wbits(struct comedi_device *dev, struct comedi_subdevice *s, |
0a85b6f0 | 3613 | struct comedi_insn *insn, unsigned int *data) |
88b12a9a | 3614 | { |
681d335a HS |
3615 | struct pcidas64_private *devpriv = dev->private; |
3616 | ||
88b12a9a | 3617 | data[0] &= 0xf; |
9ef4dea6 | 3618 | /* zero bits we are going to change */ |
88b12a9a | 3619 | s->state &= ~data[0]; |
9ef4dea6 | 3620 | /* set new bits */ |
88b12a9a FMH |
3621 | s->state |= data[0] & data[1]; |
3622 | ||
681d335a | 3623 | writeb(s->state, devpriv->dio_counter_iobase + DO_REG); |
88b12a9a FMH |
3624 | |
3625 | data[1] = s->state; | |
3626 | ||
a2714e3e | 3627 | return insn->n; |
88b12a9a FMH |
3628 | } |
3629 | ||
0a85b6f0 MT |
3630 | static int dio_60xx_config_insn(struct comedi_device *dev, |
3631 | struct comedi_subdevice *s, | |
3632 | struct comedi_insn *insn, unsigned int *data) | |
88b12a9a | 3633 | { |
681d335a | 3634 | struct pcidas64_private *devpriv = dev->private; |
88b12a9a FMH |
3635 | unsigned int mask; |
3636 | ||
3637 | mask = 1 << CR_CHAN(insn->chanspec); | |
3638 | ||
3639 | switch (data[0]) { | |
3640 | case INSN_CONFIG_DIO_INPUT: | |
3641 | s->io_bits &= ~mask; | |
3642 | break; | |
3643 | case INSN_CONFIG_DIO_OUTPUT: | |
3644 | s->io_bits |= mask; | |
3645 | break; | |
3646 | case INSN_CONFIG_DIO_QUERY: | |
3647 | data[1] = (s->io_bits & mask) ? COMEDI_OUTPUT : COMEDI_INPUT; | |
3648 | return 2; | |
3649 | default: | |
3650 | return -EINVAL; | |
3651 | } | |
3652 | ||
3653 | writeb(s->io_bits, | |
681d335a | 3654 | devpriv->dio_counter_iobase + DIO_DIRECTION_60XX_REG); |
88b12a9a FMH |
3655 | |
3656 | return 1; | |
3657 | } | |
3658 | ||
da91b269 | 3659 | static int dio_60xx_wbits(struct comedi_device *dev, struct comedi_subdevice *s, |
0a85b6f0 | 3660 | struct comedi_insn *insn, unsigned int *data) |
88b12a9a | 3661 | { |
681d335a HS |
3662 | struct pcidas64_private *devpriv = dev->private; |
3663 | ||
88b12a9a FMH |
3664 | if (data[0]) { |
3665 | s->state &= ~data[0]; | |
3666 | s->state |= (data[0] & data[1]); | |
3667 | writeb(s->state, | |
681d335a | 3668 | devpriv->dio_counter_iobase + DIO_DATA_60XX_REG); |
88b12a9a FMH |
3669 | } |
3670 | ||
681d335a | 3671 | data[1] = readb(devpriv->dio_counter_iobase + DIO_DATA_60XX_REG); |
88b12a9a | 3672 | |
a2714e3e | 3673 | return insn->n; |
88b12a9a FMH |
3674 | } |
3675 | ||
da91b269 | 3676 | static void caldac_write(struct comedi_device *dev, unsigned int channel, |
0a85b6f0 | 3677 | unsigned int value) |
88b12a9a | 3678 | { |
681d335a HS |
3679 | struct pcidas64_private *devpriv = dev->private; |
3680 | ||
3681 | devpriv->caldac_state[channel] = value; | |
88b12a9a FMH |
3682 | |
3683 | switch (board(dev)->layout) { | |
3684 | case LAYOUT_60XX: | |
3685 | case LAYOUT_64XX: | |
3686 | caldac_8800_write(dev, channel, value); | |
3687 | break; | |
3688 | case LAYOUT_4020: | |
3689 | caldac_i2c_write(dev, channel, value); | |
3690 | break; | |
3691 | default: | |
3692 | break; | |
3693 | } | |
3694 | } | |
3695 | ||
0a85b6f0 MT |
3696 | static int calib_write_insn(struct comedi_device *dev, |
3697 | struct comedi_subdevice *s, | |
3698 | struct comedi_insn *insn, unsigned int *data) | |
88b12a9a | 3699 | { |
681d335a | 3700 | struct pcidas64_private *devpriv = dev->private; |
88b12a9a FMH |
3701 | int channel = CR_CHAN(insn->chanspec); |
3702 | ||
3703 | /* return immediately if setting hasn't changed, since | |
3704 | * programming these things is slow */ | |
681d335a | 3705 | if (devpriv->caldac_state[channel] == data[0]) |
88b12a9a FMH |
3706 | return 1; |
3707 | ||
3708 | caldac_write(dev, channel, data[0]); | |
3709 | ||
3710 | return 1; | |
3711 | } | |
3712 | ||
0a85b6f0 MT |
3713 | static int calib_read_insn(struct comedi_device *dev, |
3714 | struct comedi_subdevice *s, struct comedi_insn *insn, | |
3715 | unsigned int *data) | |
88b12a9a | 3716 | { |
681d335a | 3717 | struct pcidas64_private *devpriv = dev->private; |
88b12a9a FMH |
3718 | unsigned int channel = CR_CHAN(insn->chanspec); |
3719 | ||
681d335a | 3720 | data[0] = devpriv->caldac_state[channel]; |
88b12a9a FMH |
3721 | |
3722 | return 1; | |
3723 | } | |
3724 | ||
da91b269 | 3725 | static void ad8402_write(struct comedi_device *dev, unsigned int channel, |
0a85b6f0 | 3726 | unsigned int value) |
88b12a9a | 3727 | { |
681d335a | 3728 | struct pcidas64_private *devpriv = dev->private; |
88b12a9a FMH |
3729 | static const int bitstream_length = 10; |
3730 | unsigned int bit, register_bits; | |
3731 | unsigned int bitstream = ((channel & 0x3) << 8) | (value & 0xff); | |
5f74ea14 | 3732 | static const int ad8402_udelay = 1; |
88b12a9a | 3733 | |
681d335a | 3734 | devpriv->ad8402_state[channel] = value; |
88b12a9a FMH |
3735 | |
3736 | register_bits = SELECT_8402_64XX_BIT; | |
5f74ea14 | 3737 | udelay(ad8402_udelay); |
681d335a | 3738 | writew(register_bits, devpriv->main_iobase + CALIBRATION_REG); |
88b12a9a FMH |
3739 | |
3740 | for (bit = 1 << (bitstream_length - 1); bit; bit >>= 1) { | |
3741 | if (bitstream & bit) | |
3742 | register_bits |= SERIAL_DATA_IN_BIT; | |
3743 | else | |
3744 | register_bits &= ~SERIAL_DATA_IN_BIT; | |
5f74ea14 | 3745 | udelay(ad8402_udelay); |
681d335a | 3746 | writew(register_bits, devpriv->main_iobase + CALIBRATION_REG); |
5f74ea14 | 3747 | udelay(ad8402_udelay); |
88b12a9a | 3748 | writew(register_bits | SERIAL_CLOCK_BIT, |
681d335a | 3749 | devpriv->main_iobase + CALIBRATION_REG); |
88b12a9a FMH |
3750 | } |
3751 | ||
5f74ea14 | 3752 | udelay(ad8402_udelay); |
681d335a | 3753 | writew(0, devpriv->main_iobase + CALIBRATION_REG); |
88b12a9a FMH |
3754 | } |
3755 | ||
3756 | /* for pci-das6402/16, channel 0 is analog input gain and channel 1 is offset */ | |
0a85b6f0 MT |
3757 | static int ad8402_write_insn(struct comedi_device *dev, |
3758 | struct comedi_subdevice *s, | |
3759 | struct comedi_insn *insn, unsigned int *data) | |
88b12a9a | 3760 | { |
681d335a | 3761 | struct pcidas64_private *devpriv = dev->private; |
88b12a9a FMH |
3762 | int channel = CR_CHAN(insn->chanspec); |
3763 | ||
3764 | /* return immediately if setting hasn't changed, since | |
3765 | * programming these things is slow */ | |
681d335a | 3766 | if (devpriv->ad8402_state[channel] == data[0]) |
88b12a9a FMH |
3767 | return 1; |
3768 | ||
681d335a | 3769 | devpriv->ad8402_state[channel] = data[0]; |
88b12a9a FMH |
3770 | |
3771 | ad8402_write(dev, channel, data[0]); | |
3772 | ||
3773 | return 1; | |
3774 | } | |
3775 | ||
0a85b6f0 MT |
3776 | static int ad8402_read_insn(struct comedi_device *dev, |
3777 | struct comedi_subdevice *s, | |
3778 | struct comedi_insn *insn, unsigned int *data) | |
88b12a9a | 3779 | { |
681d335a | 3780 | struct pcidas64_private *devpriv = dev->private; |
88b12a9a FMH |
3781 | unsigned int channel = CR_CHAN(insn->chanspec); |
3782 | ||
681d335a | 3783 | data[0] = devpriv->ad8402_state[channel]; |
88b12a9a FMH |
3784 | |
3785 | return 1; | |
3786 | } | |
3787 | ||
da91b269 | 3788 | static uint16_t read_eeprom(struct comedi_device *dev, uint8_t address) |
88b12a9a | 3789 | { |
681d335a | 3790 | struct pcidas64_private *devpriv = dev->private; |
88b12a9a FMH |
3791 | static const int bitstream_length = 11; |
3792 | static const int read_command = 0x6; | |
3793 | unsigned int bitstream = (read_command << 8) | address; | |
3794 | unsigned int bit; | |
f31d0008 | 3795 | void __iomem * const plx_control_addr = |
681d335a | 3796 | devpriv->plx9080_iobase + PLX_CONTROL_REG; |
88b12a9a FMH |
3797 | uint16_t value; |
3798 | static const int value_length = 16; | |
5f74ea14 | 3799 | static const int eeprom_udelay = 1; |
88b12a9a | 3800 | |
5f74ea14 | 3801 | udelay(eeprom_udelay); |
681d335a | 3802 | devpriv->plx_control_bits &= ~CTL_EE_CLK & ~CTL_EE_CS; |
9ef4dea6 | 3803 | /* make sure we don't send anything to the i2c bus on 4020 */ |
681d335a HS |
3804 | devpriv->plx_control_bits |= CTL_USERO; |
3805 | writel(devpriv->plx_control_bits, plx_control_addr); | |
9ef4dea6 | 3806 | /* activate serial eeprom */ |
5f74ea14 | 3807 | udelay(eeprom_udelay); |
681d335a HS |
3808 | devpriv->plx_control_bits |= CTL_EE_CS; |
3809 | writel(devpriv->plx_control_bits, plx_control_addr); | |
88b12a9a | 3810 | |
9ef4dea6 | 3811 | /* write read command and desired memory address */ |
88b12a9a | 3812 | for (bit = 1 << (bitstream_length - 1); bit; bit >>= 1) { |
9ef4dea6 | 3813 | /* set bit to be written */ |
5f74ea14 | 3814 | udelay(eeprom_udelay); |
88b12a9a | 3815 | if (bitstream & bit) |
681d335a | 3816 | devpriv->plx_control_bits |= CTL_EE_W; |
88b12a9a | 3817 | else |
681d335a HS |
3818 | devpriv->plx_control_bits &= ~CTL_EE_W; |
3819 | writel(devpriv->plx_control_bits, plx_control_addr); | |
9ef4dea6 | 3820 | /* clock in bit */ |
5f74ea14 | 3821 | udelay(eeprom_udelay); |
681d335a HS |
3822 | devpriv->plx_control_bits |= CTL_EE_CLK; |
3823 | writel(devpriv->plx_control_bits, plx_control_addr); | |
5f74ea14 | 3824 | udelay(eeprom_udelay); |
681d335a HS |
3825 | devpriv->plx_control_bits &= ~CTL_EE_CLK; |
3826 | writel(devpriv->plx_control_bits, plx_control_addr); | |
88b12a9a | 3827 | } |
9ef4dea6 | 3828 | /* read back value from eeprom memory location */ |
88b12a9a FMH |
3829 | value = 0; |
3830 | for (bit = 1 << (value_length - 1); bit; bit >>= 1) { | |
9ef4dea6 | 3831 | /* clock out bit */ |
5f74ea14 | 3832 | udelay(eeprom_udelay); |
681d335a HS |
3833 | devpriv->plx_control_bits |= CTL_EE_CLK; |
3834 | writel(devpriv->plx_control_bits, plx_control_addr); | |
5f74ea14 | 3835 | udelay(eeprom_udelay); |
681d335a HS |
3836 | devpriv->plx_control_bits &= ~CTL_EE_CLK; |
3837 | writel(devpriv->plx_control_bits, plx_control_addr); | |
5f74ea14 | 3838 | udelay(eeprom_udelay); |
88b12a9a FMH |
3839 | if (readl(plx_control_addr) & CTL_EE_R) |
3840 | value |= bit; | |
3841 | } | |
3842 | ||
9ef4dea6 | 3843 | /* deactivate eeprom serial input */ |
5f74ea14 | 3844 | udelay(eeprom_udelay); |
681d335a HS |
3845 | devpriv->plx_control_bits &= ~CTL_EE_CS; |
3846 | writel(devpriv->plx_control_bits, plx_control_addr); | |
88b12a9a FMH |
3847 | |
3848 | return value; | |
3849 | } | |
3850 | ||
0a85b6f0 MT |
3851 | static int eeprom_read_insn(struct comedi_device *dev, |
3852 | struct comedi_subdevice *s, | |
3853 | struct comedi_insn *insn, unsigned int *data) | |
88b12a9a FMH |
3854 | { |
3855 | data[0] = read_eeprom(dev, CR_CHAN(insn->chanspec)); | |
3856 | ||
3857 | return 1; | |
3858 | } | |
3859 | ||
3860 | /* utility function that rounds desired timing to an achievable time, and | |
3861 | * sets cmd members appropriately. | |
3862 | * adc paces conversions from master clock by dividing by (x + 3) where x is 24 bit number | |
3863 | */ | |
ea6d0d4c | 3864 | static void check_adc_timing(struct comedi_device *dev, struct comedi_cmd *cmd) |
88b12a9a FMH |
3865 | { |
3866 | unsigned int convert_divisor = 0, scan_divisor; | |
3867 | static const int min_convert_divisor = 3; | |
3868 | static const int max_convert_divisor = | |
0a85b6f0 | 3869 | max_counter_value + min_convert_divisor; |
88b12a9a FMH |
3870 | static const int min_scan_divisor_4020 = 2; |
3871 | unsigned long long max_scan_divisor, min_scan_divisor; | |
3872 | ||
3873 | if (cmd->convert_src == TRIG_TIMER) { | |
3874 | if (board(dev)->layout == LAYOUT_4020) { | |
3875 | cmd->convert_arg = 0; | |
3876 | } else { | |
3877 | convert_divisor = | |
0a85b6f0 | 3878 | get_divisor(cmd->convert_arg, cmd->flags); |
88b12a9a FMH |
3879 | if (convert_divisor > max_convert_divisor) |
3880 | convert_divisor = max_convert_divisor; | |
3881 | if (convert_divisor < min_convert_divisor) | |
3882 | convert_divisor = min_convert_divisor; | |
3883 | cmd->convert_arg = convert_divisor * TIMER_BASE; | |
3884 | } | |
3885 | } else if (cmd->convert_src == TRIG_NOW) | |
3886 | cmd->convert_arg = 0; | |
3887 | ||
3888 | if (cmd->scan_begin_src == TRIG_TIMER) { | |
3889 | scan_divisor = get_divisor(cmd->scan_begin_arg, cmd->flags); | |
3890 | if (cmd->convert_src == TRIG_TIMER) { | |
9ef4dea6 | 3891 | /* XXX check for integer overflows */ |
88b12a9a FMH |
3892 | min_scan_divisor = convert_divisor * cmd->chanlist_len; |
3893 | max_scan_divisor = | |
0a85b6f0 MT |
3894 | (convert_divisor * cmd->chanlist_len - 1) + |
3895 | max_counter_value; | |
88b12a9a FMH |
3896 | } else { |
3897 | min_scan_divisor = min_scan_divisor_4020; | |
3898 | max_scan_divisor = max_counter_value + min_scan_divisor; | |
3899 | } | |
3900 | if (scan_divisor > max_scan_divisor) | |
3901 | scan_divisor = max_scan_divisor; | |
3902 | if (scan_divisor < min_scan_divisor) | |
3903 | scan_divisor = min_scan_divisor; | |
3904 | cmd->scan_begin_arg = scan_divisor * TIMER_BASE; | |
3905 | } | |
3906 | ||
3907 | return; | |
3908 | } | |
3909 | ||
3910 | /* Gets nearest achievable timing given master clock speed, does not | |
3911 | * take into account possible minimum/maximum divisor values. Used | |
3912 | * by other timing checking functions. */ | |
3913 | static unsigned int get_divisor(unsigned int ns, unsigned int flags) | |
3914 | { | |
3915 | unsigned int divisor; | |
3916 | ||
3917 | switch (flags & TRIG_ROUND_MASK) { | |
3918 | case TRIG_ROUND_UP: | |
3919 | divisor = (ns + TIMER_BASE - 1) / TIMER_BASE; | |
3920 | break; | |
3921 | case TRIG_ROUND_DOWN: | |
3922 | divisor = ns / TIMER_BASE; | |
3923 | break; | |
3924 | case TRIG_ROUND_NEAREST: | |
3925 | default: | |
3926 | divisor = (ns + TIMER_BASE / 2) / TIMER_BASE; | |
3927 | break; | |
3928 | } | |
3929 | return divisor; | |
3930 | } | |
3931 | ||
3932 | static unsigned int get_ao_divisor(unsigned int ns, unsigned int flags) | |
3933 | { | |
3934 | return get_divisor(ns, flags) - 2; | |
3935 | } | |
3936 | ||
9ef4dea6 | 3937 | /* adjusts the size of hardware fifo (which determines block size for dma xfers) */ |
da91b269 | 3938 | static int set_ai_fifo_size(struct comedi_device *dev, unsigned int num_samples) |
88b12a9a FMH |
3939 | { |
3940 | unsigned int num_fifo_entries; | |
3941 | int retval; | |
675935dd | 3942 | const struct hw_fifo_info *const fifo = board(dev)->ai_fifo; |
88b12a9a FMH |
3943 | |
3944 | num_fifo_entries = num_samples / fifo->sample_packing_ratio; | |
3945 | ||
3946 | retval = set_ai_fifo_segment_length(dev, | |
0a85b6f0 MT |
3947 | num_fifo_entries / |
3948 | fifo->num_segments); | |
88b12a9a FMH |
3949 | if (retval < 0) |
3950 | return retval; | |
3951 | ||
3952 | num_samples = retval * fifo->num_segments * fifo->sample_packing_ratio; | |
3953 | ||
3954 | DEBUG_PRINT("set hardware fifo size to %i\n", num_samples); | |
3955 | ||
3956 | return num_samples; | |
3957 | } | |
3958 | ||
9ef4dea6 | 3959 | /* query length of fifo */ |
da91b269 | 3960 | static unsigned int ai_fifo_size(struct comedi_device *dev) |
88b12a9a | 3961 | { |
681d335a HS |
3962 | struct pcidas64_private *devpriv = dev->private; |
3963 | ||
3964 | return devpriv->ai_fifo_segment_length * | |
0a85b6f0 MT |
3965 | board(dev)->ai_fifo->num_segments * |
3966 | board(dev)->ai_fifo->sample_packing_ratio; | |
88b12a9a FMH |
3967 | } |
3968 | ||
da91b269 | 3969 | static int set_ai_fifo_segment_length(struct comedi_device *dev, |
0a85b6f0 | 3970 | unsigned int num_entries) |
88b12a9a | 3971 | { |
681d335a | 3972 | struct pcidas64_private *devpriv = dev->private; |
88b12a9a | 3973 | static const int increment_size = 0x100; |
675935dd | 3974 | const struct hw_fifo_info *const fifo = board(dev)->ai_fifo; |
88b12a9a FMH |
3975 | unsigned int num_increments; |
3976 | uint16_t bits; | |
3977 | ||
3978 | if (num_entries < increment_size) | |
3979 | num_entries = increment_size; | |
3980 | if (num_entries > fifo->max_segment_length) | |
3981 | num_entries = fifo->max_segment_length; | |
3982 | ||
9ef4dea6 | 3983 | /* 1 == 256 entries, 2 == 512 entries, etc */ |
88b12a9a FMH |
3984 | num_increments = (num_entries + increment_size / 2) / increment_size; |
3985 | ||
3986 | bits = (~(num_increments - 1)) & fifo->fifo_size_reg_mask; | |
681d335a HS |
3987 | devpriv->fifo_size_bits &= ~fifo->fifo_size_reg_mask; |
3988 | devpriv->fifo_size_bits |= bits; | |
3989 | writew(devpriv->fifo_size_bits, | |
3990 | devpriv->main_iobase + FIFO_SIZE_REG); | |
88b12a9a | 3991 | |
681d335a | 3992 | devpriv->ai_fifo_segment_length = num_increments * increment_size; |
88b12a9a FMH |
3993 | |
3994 | DEBUG_PRINT("set hardware fifo segment length to %i\n", | |
681d335a | 3995 | devpriv->ai_fifo_segment_length); |
88b12a9a | 3996 | |
681d335a | 3997 | return devpriv->ai_fifo_segment_length; |
88b12a9a FMH |
3998 | } |
3999 | ||
4000 | /* pci-6025 8800 caldac: | |
4001 | * address 0 == dac channel 0 offset | |
4002 | * address 1 == dac channel 0 gain | |
4003 | * address 2 == dac channel 1 offset | |
4004 | * address 3 == dac channel 1 gain | |
4005 | * address 4 == fine adc offset | |
4006 | * address 5 == coarse adc offset | |
4007 | * address 6 == coarse adc gain | |
4008 | * address 7 == fine adc gain | |
4009 | */ | |
4010 | /* pci-6402/16 uses all 8 channels for dac: | |
4011 | * address 0 == dac channel 0 fine gain | |
4012 | * address 1 == dac channel 0 coarse gain | |
4013 | * address 2 == dac channel 0 coarse offset | |
4014 | * address 3 == dac channel 1 coarse offset | |
4015 | * address 4 == dac channel 1 fine gain | |
4016 | * address 5 == dac channel 1 coarse gain | |
4017 | * address 6 == dac channel 0 fine offset | |
4018 | * address 7 == dac channel 1 fine offset | |
4019 | */ | |
4020 | ||
da91b269 | 4021 | static int caldac_8800_write(struct comedi_device *dev, unsigned int address, |
0a85b6f0 | 4022 | uint8_t value) |
88b12a9a | 4023 | { |
681d335a | 4024 | struct pcidas64_private *devpriv = dev->private; |
88b12a9a FMH |
4025 | static const int num_caldac_channels = 8; |
4026 | static const int bitstream_length = 11; | |
4027 | unsigned int bitstream = ((address & 0x7) << 8) | value; | |
4028 | unsigned int bit, register_bits; | |
4029 | static const int caldac_8800_udelay = 1; | |
4030 | ||
4031 | if (address >= num_caldac_channels) { | |
4032 | comedi_error(dev, "illegal caldac channel"); | |
4033 | return -1; | |
4034 | } | |
4035 | for (bit = 1 << (bitstream_length - 1); bit; bit >>= 1) { | |
4036 | register_bits = 0; | |
4037 | if (bitstream & bit) | |
4038 | register_bits |= SERIAL_DATA_IN_BIT; | |
5f74ea14 | 4039 | udelay(caldac_8800_udelay); |
681d335a | 4040 | writew(register_bits, devpriv->main_iobase + CALIBRATION_REG); |
88b12a9a | 4041 | register_bits |= SERIAL_CLOCK_BIT; |
5f74ea14 | 4042 | udelay(caldac_8800_udelay); |
681d335a | 4043 | writew(register_bits, devpriv->main_iobase + CALIBRATION_REG); |
88b12a9a | 4044 | } |
5f74ea14 | 4045 | udelay(caldac_8800_udelay); |
681d335a | 4046 | writew(SELECT_8800_BIT, devpriv->main_iobase + CALIBRATION_REG); |
5f74ea14 | 4047 | udelay(caldac_8800_udelay); |
681d335a | 4048 | writew(0, devpriv->main_iobase + CALIBRATION_REG); |
5f74ea14 | 4049 | udelay(caldac_8800_udelay); |
88b12a9a FMH |
4050 | return 0; |
4051 | } | |
4052 | ||
9ef4dea6 | 4053 | /* 4020 caldacs */ |
0a85b6f0 MT |
4054 | static int caldac_i2c_write(struct comedi_device *dev, |
4055 | unsigned int caldac_channel, unsigned int value) | |
88b12a9a FMH |
4056 | { |
4057 | uint8_t serial_bytes[3]; | |
4058 | uint8_t i2c_addr; | |
4059 | enum pointer_bits { | |
9ef4dea6 | 4060 | /* manual has gain and offset bits switched */ |
88b12a9a FMH |
4061 | OFFSET_0_2 = 0x1, |
4062 | GAIN_0_2 = 0x2, | |
4063 | OFFSET_1_3 = 0x4, | |
4064 | GAIN_1_3 = 0x8, | |
4065 | }; | |
4066 | enum data_bits { | |
4067 | NOT_CLEAR_REGISTERS = 0x20, | |
4068 | }; | |
4069 | ||
4070 | switch (caldac_channel) { | |
9ef4dea6 | 4071 | case 0: /* chan 0 offset */ |
88b12a9a FMH |
4072 | i2c_addr = CALDAC0_I2C_ADDR; |
4073 | serial_bytes[0] = OFFSET_0_2; | |
4074 | break; | |
9ef4dea6 | 4075 | case 1: /* chan 1 offset */ |
88b12a9a FMH |
4076 | i2c_addr = CALDAC0_I2C_ADDR; |
4077 | serial_bytes[0] = OFFSET_1_3; | |
4078 | break; | |
9ef4dea6 | 4079 | case 2: /* chan 2 offset */ |
88b12a9a FMH |
4080 | i2c_addr = CALDAC1_I2C_ADDR; |
4081 | serial_bytes[0] = OFFSET_0_2; | |
4082 | break; | |
9ef4dea6 | 4083 | case 3: /* chan 3 offset */ |
88b12a9a FMH |
4084 | i2c_addr = CALDAC1_I2C_ADDR; |
4085 | serial_bytes[0] = OFFSET_1_3; | |
4086 | break; | |
9ef4dea6 | 4087 | case 4: /* chan 0 gain */ |
88b12a9a FMH |
4088 | i2c_addr = CALDAC0_I2C_ADDR; |
4089 | serial_bytes[0] = GAIN_0_2; | |
4090 | break; | |
9ef4dea6 | 4091 | case 5: /* chan 1 gain */ |
88b12a9a FMH |
4092 | i2c_addr = CALDAC0_I2C_ADDR; |
4093 | serial_bytes[0] = GAIN_1_3; | |
4094 | break; | |
9ef4dea6 | 4095 | case 6: /* chan 2 gain */ |
88b12a9a FMH |
4096 | i2c_addr = CALDAC1_I2C_ADDR; |
4097 | serial_bytes[0] = GAIN_0_2; | |
4098 | break; | |
9ef4dea6 | 4099 | case 7: /* chan 3 gain */ |
88b12a9a FMH |
4100 | i2c_addr = CALDAC1_I2C_ADDR; |
4101 | serial_bytes[0] = GAIN_1_3; | |
4102 | break; | |
4103 | default: | |
4104 | comedi_error(dev, "invalid caldac channel\n"); | |
4105 | return -1; | |
4106 | break; | |
4107 | } | |
4108 | serial_bytes[1] = NOT_CLEAR_REGISTERS | ((value >> 8) & 0xf); | |
4109 | serial_bytes[2] = value & 0xff; | |
4110 | i2c_write(dev, i2c_addr, serial_bytes, 3); | |
4111 | return 0; | |
4112 | } | |
4113 | ||
9ef4dea6 | 4114 | /* Their i2c requires a huge delay on setting clock or data high for some reason */ |
5f74ea14 GKH |
4115 | static const int i2c_high_udelay = 1000; |
4116 | static const int i2c_low_udelay = 10; | |
88b12a9a | 4117 | |
9ef4dea6 | 4118 | /* set i2c data line high or low */ |
da91b269 | 4119 | static void i2c_set_sda(struct comedi_device *dev, int state) |
88b12a9a | 4120 | { |
681d335a | 4121 | struct pcidas64_private *devpriv = dev->private; |
88b12a9a | 4122 | static const int data_bit = CTL_EE_W; |
681d335a | 4123 | void __iomem *plx_control_addr = devpriv->plx9080_iobase + |
f31d0008 | 4124 | PLX_CONTROL_REG; |
88b12a9a FMH |
4125 | |
4126 | if (state) { | |
9ef4dea6 | 4127 | /* set data line high */ |
681d335a HS |
4128 | devpriv->plx_control_bits &= ~data_bit; |
4129 | writel(devpriv->plx_control_bits, plx_control_addr); | |
5f74ea14 | 4130 | udelay(i2c_high_udelay); |
0a85b6f0 MT |
4131 | } else { /* set data line low */ |
4132 | ||
681d335a HS |
4133 | devpriv->plx_control_bits |= data_bit; |
4134 | writel(devpriv->plx_control_bits, plx_control_addr); | |
5f74ea14 | 4135 | udelay(i2c_low_udelay); |
88b12a9a FMH |
4136 | } |
4137 | } | |
4138 | ||
9ef4dea6 | 4139 | /* set i2c clock line high or low */ |
da91b269 | 4140 | static void i2c_set_scl(struct comedi_device *dev, int state) |
88b12a9a | 4141 | { |
681d335a | 4142 | struct pcidas64_private *devpriv = dev->private; |
88b12a9a | 4143 | static const int clock_bit = CTL_USERO; |
681d335a | 4144 | void __iomem *plx_control_addr = devpriv->plx9080_iobase + |
f31d0008 | 4145 | PLX_CONTROL_REG; |
88b12a9a FMH |
4146 | |
4147 | if (state) { | |
9ef4dea6 | 4148 | /* set clock line high */ |
681d335a HS |
4149 | devpriv->plx_control_bits &= ~clock_bit; |
4150 | writel(devpriv->plx_control_bits, plx_control_addr); | |
5f74ea14 | 4151 | udelay(i2c_high_udelay); |
0a85b6f0 MT |
4152 | } else { /* set clock line low */ |
4153 | ||
681d335a HS |
4154 | devpriv->plx_control_bits |= clock_bit; |
4155 | writel(devpriv->plx_control_bits, plx_control_addr); | |
5f74ea14 | 4156 | udelay(i2c_low_udelay); |
88b12a9a FMH |
4157 | } |
4158 | } | |
4159 | ||
da91b269 | 4160 | static void i2c_write_byte(struct comedi_device *dev, uint8_t byte) |
88b12a9a FMH |
4161 | { |
4162 | uint8_t bit; | |
4163 | unsigned int num_bits = 8; | |
4164 | ||
4165 | DEBUG_PRINT("writing to i2c byte 0x%x\n", byte); | |
4166 | ||
4167 | for (bit = 1 << (num_bits - 1); bit; bit >>= 1) { | |
4168 | i2c_set_scl(dev, 0); | |
4169 | if ((byte & bit)) | |
4170 | i2c_set_sda(dev, 1); | |
4171 | else | |
4172 | i2c_set_sda(dev, 0); | |
4173 | i2c_set_scl(dev, 1); | |
4174 | } | |
4175 | } | |
4176 | ||
9ef4dea6 | 4177 | /* we can't really read the lines, so fake it */ |
da91b269 | 4178 | static int i2c_read_ack(struct comedi_device *dev) |
88b12a9a FMH |
4179 | { |
4180 | i2c_set_scl(dev, 0); | |
4181 | i2c_set_sda(dev, 1); | |
4182 | i2c_set_scl(dev, 1); | |
4183 | ||
9ef4dea6 | 4184 | return 0; /* return fake acknowledge bit */ |
88b12a9a FMH |
4185 | } |
4186 | ||
9ef4dea6 | 4187 | /* send start bit */ |
da91b269 | 4188 | static void i2c_start(struct comedi_device *dev) |
88b12a9a FMH |
4189 | { |
4190 | i2c_set_scl(dev, 1); | |
4191 | i2c_set_sda(dev, 1); | |
4192 | i2c_set_sda(dev, 0); | |
4193 | } | |
4194 | ||
9ef4dea6 | 4195 | /* send stop bit */ |
da91b269 | 4196 | static void i2c_stop(struct comedi_device *dev) |
88b12a9a FMH |
4197 | { |
4198 | i2c_set_scl(dev, 0); | |
4199 | i2c_set_sda(dev, 0); | |
4200 | i2c_set_scl(dev, 1); | |
4201 | i2c_set_sda(dev, 1); | |
4202 | } | |
4203 | ||
da91b269 | 4204 | static void i2c_write(struct comedi_device *dev, unsigned int address, |
856ff77e | 4205 | const uint8_t *data, unsigned int length) |
88b12a9a | 4206 | { |
681d335a | 4207 | struct pcidas64_private *devpriv = dev->private; |
88b12a9a FMH |
4208 | unsigned int i; |
4209 | uint8_t bitstream; | |
4210 | static const int read_bit = 0x1; | |
4211 | ||
9ef4dea6 | 4212 | /* XXX need mutex to prevent simultaneous attempts to access eeprom and i2c bus */ |
88b12a9a | 4213 | |
9ef4dea6 | 4214 | /* make sure we dont send anything to eeprom */ |
681d335a | 4215 | devpriv->plx_control_bits &= ~CTL_EE_CS; |
88b12a9a FMH |
4216 | |
4217 | i2c_stop(dev); | |
4218 | i2c_start(dev); | |
4219 | ||
9ef4dea6 | 4220 | /* send address and write bit */ |
88b12a9a FMH |
4221 | bitstream = (address << 1) & ~read_bit; |
4222 | i2c_write_byte(dev, bitstream); | |
4223 | ||
9ef4dea6 | 4224 | /* get acknowledge */ |
88b12a9a FMH |
4225 | if (i2c_read_ack(dev) != 0) { |
4226 | comedi_error(dev, "i2c write failed: no acknowledge"); | |
4227 | i2c_stop(dev); | |
4228 | return; | |
4229 | } | |
9ef4dea6 | 4230 | /* write data bytes */ |
88b12a9a FMH |
4231 | for (i = 0; i < length; i++) { |
4232 | i2c_write_byte(dev, data[i]); | |
4233 | if (i2c_read_ack(dev) != 0) { | |
4234 | comedi_error(dev, "i2c write failed: no acknowledge"); | |
4235 | i2c_stop(dev); | |
4236 | return; | |
4237 | } | |
4238 | } | |
4239 | i2c_stop(dev); | |
4240 | } | |
90f703d3 | 4241 | |
bdc7cc50 HS |
4242 | static struct comedi_driver cb_pcidas64_driver = { |
4243 | .driver_name = "cb_pcidas64", | |
4244 | .module = THIS_MODULE, | |
4245 | .attach = attach, | |
4246 | .detach = detach, | |
4247 | }; | |
4248 | ||
4249 | static int __devinit cb_pcidas64_pci_probe(struct pci_dev *dev, | |
4250 | const struct pci_device_id *ent) | |
4251 | { | |
4252 | return comedi_pci_auto_config(dev, &cb_pcidas64_driver); | |
4253 | } | |
4254 | ||
4255 | static void __devexit cb_pcidas64_pci_remove(struct pci_dev *dev) | |
4256 | { | |
4257 | comedi_pci_auto_unconfig(dev); | |
4258 | } | |
4259 | ||
4260 | static DEFINE_PCI_DEVICE_TABLE(cb_pcidas64_pci_table) = { | |
4261 | { PCI_DEVICE(PCI_VENDOR_ID_COMPUTERBOARDS, 0x001d) }, | |
4262 | { PCI_DEVICE(PCI_VENDOR_ID_COMPUTERBOARDS, 0x001e) }, | |
4263 | { PCI_DEVICE(PCI_VENDOR_ID_COMPUTERBOARDS, 0x0035) }, | |
4264 | { PCI_DEVICE(PCI_VENDOR_ID_COMPUTERBOARDS, 0x0036) }, | |
4265 | { PCI_DEVICE(PCI_VENDOR_ID_COMPUTERBOARDS, 0x0037) }, | |
4266 | { PCI_DEVICE(PCI_VENDOR_ID_COMPUTERBOARDS, 0x0052) }, | |
4267 | { PCI_DEVICE(PCI_VENDOR_ID_COMPUTERBOARDS, 0x005d) }, | |
4268 | { PCI_DEVICE(PCI_VENDOR_ID_COMPUTERBOARDS, 0x005e) }, | |
4269 | { PCI_DEVICE(PCI_VENDOR_ID_COMPUTERBOARDS, 0x005f) }, | |
4270 | { PCI_DEVICE(PCI_VENDOR_ID_COMPUTERBOARDS, 0x0061) }, | |
4271 | { PCI_DEVICE(PCI_VENDOR_ID_COMPUTERBOARDS, 0x0062) }, | |
4272 | { PCI_DEVICE(PCI_VENDOR_ID_COMPUTERBOARDS, 0x0063) }, | |
4273 | { PCI_DEVICE(PCI_VENDOR_ID_COMPUTERBOARDS, 0x0064) }, | |
4274 | { PCI_DEVICE(PCI_VENDOR_ID_COMPUTERBOARDS, 0x0066) }, | |
4275 | { PCI_DEVICE(PCI_VENDOR_ID_COMPUTERBOARDS, 0x0067) }, | |
4276 | { PCI_DEVICE(PCI_VENDOR_ID_COMPUTERBOARDS, 0x0068) }, | |
4277 | { PCI_DEVICE(PCI_VENDOR_ID_COMPUTERBOARDS, 0x006f) }, | |
4278 | { PCI_DEVICE(PCI_VENDOR_ID_COMPUTERBOARDS, 0x0078) }, | |
4279 | { PCI_DEVICE(PCI_VENDOR_ID_COMPUTERBOARDS, 0x0079) }, | |
4280 | { 0 } | |
4281 | }; | |
4282 | MODULE_DEVICE_TABLE(pci, cb_pcidas64_pci_table); | |
4283 | ||
4284 | static struct pci_driver cb_pcidas64_pci_driver = { | |
4285 | .name = "cb_pcidas64", | |
4286 | .id_table = cb_pcidas64_pci_table, | |
4287 | .probe = cb_pcidas64_pci_probe, | |
4288 | .remove = __devexit_p(cb_pcidas64_pci_remove), | |
4289 | }; | |
4290 | module_comedi_pci_driver(cb_pcidas64_driver, cb_pcidas64_pci_driver); | |
4291 | ||
90f703d3 AT |
4292 | MODULE_AUTHOR("Comedi http://www.comedi.org"); |
4293 | MODULE_DESCRIPTION("Comedi low-level driver"); | |
4294 | MODULE_LICENSE("GPL"); |