Commit | Line | Data |
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59c7dd3d IM |
1 | /* |
2 | comedi/drivers/cb_pcidas.c | |
3 | ||
4 | Developed by Ivan Martinez and Frank Mori Hess, with valuable help from | |
5 | David Schleef and the rest of the Comedi developers comunity. | |
6 | ||
7 | Copyright (C) 2001-2003 Ivan Martinez <imr@oersted.dtu.dk> | |
8 | Copyright (C) 2001,2002 Frank Mori Hess <fmhess@users.sourceforge.net> | |
9 | ||
10 | COMEDI - Linux Control and Measurement Device Interface | |
11 | Copyright (C) 1997-8 David A. Schleef <ds@schleef.org> | |
12 | ||
13 | This program is free software; you can redistribute it and/or modify | |
14 | it under the terms of the GNU General Public License as published by | |
15 | the Free Software Foundation; either version 2 of the License, or | |
16 | (at your option) any later version. | |
17 | ||
18 | This program is distributed in the hope that it will be useful, | |
19 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
20 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
21 | GNU General Public License for more details. | |
22 | ||
23 | You should have received a copy of the GNU General Public License | |
24 | along with this program; if not, write to the Free Software | |
25 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
26 | ||
27 | ************************************************************************ | |
28 | */ | |
29 | /* | |
30 | Driver: cb_pcidas | |
31 | Description: MeasurementComputing PCI-DAS series with the AMCC S5933 PCI controller | |
32 | Author: Ivan Martinez <imr@oersted.dtu.dk>, | |
33 | Frank Mori Hess <fmhess@users.sourceforge.net> | |
34 | Updated: 2003-3-11 | |
35 | Devices: [Measurement Computing] PCI-DAS1602/16 (cb_pcidas), | |
36 | PCI-DAS1602/16jr, PCI-DAS1602/12, PCI-DAS1200, PCI-DAS1200jr, | |
37 | PCI-DAS1000, PCI-DAS1001, PCI_DAS1002 | |
38 | ||
39 | Status: | |
40 | There are many reports of the driver being used with most of the | |
41 | supported cards. Despite no detailed log is maintained, it can | |
42 | be said that the driver is quite tested and stable. | |
43 | ||
44 | The boards may be autocalibrated using the comedi_calibrate | |
45 | utility. | |
46 | ||
47 | Configuration options: | |
48 | [0] - PCI bus of device (optional) | |
49 | [1] - PCI slot of device (optional) | |
50 | If bus/slot is not specified, the first supported | |
51 | PCI device found will be used. | |
52 | ||
53 | For commands, the scanned channels must be consecutive | |
54 | (i.e. 4-5-6-7, 2-3-4,...), and must all have the same | |
55 | range and aref. | |
56 | */ | |
57 | /* | |
58 | ||
59 | TODO: | |
60 | ||
61 | analog triggering on 1602 series | |
62 | */ | |
63 | ||
64 | #include "../comedidev.h" | |
65 | #include <linux/delay.h> | |
70265d24 | 66 | #include <linux/interrupt.h> |
59c7dd3d IM |
67 | |
68 | #include "8253.h" | |
69 | #include "8255.h" | |
70 | #include "amcc_s5933.h" | |
71 | #include "comedi_pci.h" | |
72 | #include "comedi_fc.h" | |
73 | ||
cf530aa4 BP |
74 | #undef CB_PCIDAS_DEBUG /* disable debugging code */ |
75 | /* #define CB_PCIDAS_DEBUG enable debugging code */ | |
59c7dd3d | 76 | |
cf530aa4 | 77 | /* PCI vendor number of ComputerBoards/MeasurementComputing */ |
59c7dd3d | 78 | #define PCI_VENDOR_ID_CB 0x1307 |
cf530aa4 BP |
79 | #define TIMER_BASE 100 /* 10MHz master clock */ |
80 | #define AI_BUFFER_SIZE 1024 /* maximum fifo size of any supported board */ | |
81 | #define AO_BUFFER_SIZE 1024 /* maximum fifo size of any supported board */ | |
59c7dd3d IM |
82 | #define NUM_CHANNELS_8800 8 |
83 | #define NUM_CHANNELS_7376 1 | |
84 | #define NUM_CHANNELS_8402 2 | |
85 | #define NUM_CHANNELS_DAC08 1 | |
86 | ||
87 | /* PCI-DAS base addresses */ | |
88 | ||
cf530aa4 | 89 | /* indices of base address regions */ |
59c7dd3d IM |
90 | #define S5933_BADRINDEX 0 |
91 | #define CONT_STAT_BADRINDEX 1 | |
92 | #define ADC_FIFO_BADRINDEX 2 | |
93 | #define PACER_BADRINDEX 3 | |
94 | #define AO_BADRINDEX 4 | |
cf530aa4 | 95 | /* sizes of io regions */ |
59c7dd3d IM |
96 | #define CONT_STAT_SIZE 10 |
97 | #define ADC_FIFO_SIZE 4 | |
98 | #define PACER_SIZE 12 | |
99 | #define AO_SIZE 4 | |
100 | ||
101 | /* Control/Status registers */ | |
cf530aa4 BP |
102 | #define INT_ADCFIFO 0 /* INTERRUPT / ADC FIFO register */ |
103 | #define INT_EOS 0x1 /* interrupt end of scan */ | |
104 | #define INT_FHF 0x2 /* interrupt fifo half full */ | |
105 | #define INT_FNE 0x3 /* interrupt fifo not empty */ | |
106 | #define INT_MASK 0x3 /* mask of interrupt select bits */ | |
107 | #define INTE 0x4 /* interrupt enable */ | |
108 | #define DAHFIE 0x8 /* dac half full interrupt enable */ | |
109 | #define EOAIE 0x10 /* end of aquisition interrupt enable */ | |
110 | #define DAHFI 0x20 /* dac half full read status / write interrupt clear */ | |
111 | #define EOAI 0x40 /* read end of acq. interrupt status / write clear */ | |
112 | #define INT 0x80 /* read interrupt status / write clear */ | |
113 | #define EOBI 0x200 /* read end of burst interrupt status */ | |
114 | #define ADHFI 0x400 /* read half-full interrupt status */ | |
115 | #define ADNEI 0x800 /* read fifo not empty interrupt latch status */ | |
116 | #define ADNE 0x1000 /* read, fifo not empty (realtime, not latched) status */ | |
117 | #define DAEMIE 0x1000 /* write, dac empty interrupt enable */ | |
118 | #define LADFUL 0x2000 /* read fifo overflow / write clear */ | |
119 | #define DAEMI 0x4000 /* dac fifo empty interrupt status / write clear */ | |
120 | ||
121 | #define ADCMUX_CONT 2 /* ADC CHANNEL MUX AND CONTROL register */ | |
59c7dd3d IM |
122 | #define BEGIN_SCAN(x) ((x) & 0xf) |
123 | #define END_SCAN(x) (((x) & 0xf) << 4) | |
124 | #define GAIN_BITS(x) (((x) & 0x3) << 8) | |
cf530aa4 BP |
125 | #define UNIP 0x800 /* Analog front-end unipolar for range */ |
126 | #define SE 0x400 /* Inputs in single-ended mode */ | |
127 | #define PACER_MASK 0x3000 /* pacer source bits */ | |
128 | #define PACER_INT 0x1000 /* internal pacer */ | |
129 | #define PACER_EXT_FALL 0x2000 /* external falling edge */ | |
130 | #define PACER_EXT_RISE 0x3000 /* external rising edge */ | |
131 | #define EOC 0x4000 /* adc not busy */ | |
132 | ||
133 | #define TRIG_CONTSTAT 4 /* TRIGGER CONTROL/STATUS register */ | |
134 | #define SW_TRIGGER 0x1 /* software start trigger */ | |
135 | #define EXT_TRIGGER 0x2 /* external start trigger */ | |
136 | #define ANALOG_TRIGGER 0x3 /* external analog trigger */ | |
137 | #define TRIGGER_MASK 0x3 /* mask of bits that determine start trigger */ | |
138 | #define TGEN 0x10 /* enable external start trigger */ | |
139 | #define BURSTE 0x20 /* burst mode enable */ | |
140 | #define XTRCL 0x80 /* clear external trigger */ | |
141 | ||
142 | #define CALIBRATION_REG 6 /* CALIBRATION register */ | |
143 | #define SELECT_8800_BIT 0x100 /* select 8800 caldac */ | |
144 | #define SELECT_TRIMPOT_BIT 0x200 /* select ad7376 trim pot */ | |
145 | #define SELECT_DAC08_BIT 0x400 /* select dac08 caldac */ | |
59c7dd3d | 146 | #define CAL_SRC_BITS(x) (((x) & 0x7) << 11) |
cf530aa4 BP |
147 | #define CAL_EN_BIT 0x4000 /* read calibration source instead of analog input channel 0 */ |
148 | #define SERIAL_DATA_IN_BIT 0x8000 /* serial data stream going to 8800 and 7376 */ | |
59c7dd3d | 149 | |
cf530aa4 | 150 | #define DAC_CSR 0x8 /* dac control and status register */ |
59c7dd3d | 151 | enum dac_csr_bits { |
cf530aa4 BP |
152 | DACEN = 0x2, /* dac enable */ |
153 | DAC_MODE_UPDATE_BOTH = 0x80, /* update both dacs when dac0 is written */ | |
59c7dd3d IM |
154 | }; |
155 | static inline unsigned int DAC_RANGE(unsigned int channel, unsigned int range) | |
156 | { | |
157 | return (range & 0x3) << (8 + 2 * (channel & 0x1)); | |
158 | } | |
0a85b6f0 | 159 | |
59c7dd3d IM |
160 | static inline unsigned int DAC_RANGE_MASK(unsigned int channel) |
161 | { | |
162 | return 0x3 << (8 + 2 * (channel & 0x1)); | |
163 | }; | |
164 | ||
cf530aa4 | 165 | /* bits for 1602 series only */ |
59c7dd3d | 166 | enum dac_csr_bits_1602 { |
cf530aa4 BP |
167 | DAC_EMPTY = 0x1, /* dac fifo empty, read, write clear */ |
168 | DAC_START = 0x4, /* start/arm dac fifo operations */ | |
169 | DAC_PACER_MASK = 0x18, /* bits that set dac pacer source */ | |
170 | DAC_PACER_INT = 0x8, /* dac internal pacing */ | |
171 | DAC_PACER_EXT_FALL = 0x10, /* dac external pacing, falling edge */ | |
172 | DAC_PACER_EXT_RISE = 0x18, /* dac external pacing, rising edge */ | |
59c7dd3d IM |
173 | }; |
174 | static inline unsigned int DAC_CHAN_EN(unsigned int channel) | |
175 | { | |
cf530aa4 | 176 | return 1 << (5 + (channel & 0x1)); /* enable channel 0 or 1 */ |
59c7dd3d IM |
177 | }; |
178 | ||
179 | /* analog input fifo */ | |
cf530aa4 BP |
180 | #define ADCDATA 0 /* ADC DATA register */ |
181 | #define ADCFIFOCLR 2 /* ADC FIFO CLEAR */ | |
59c7dd3d | 182 | |
cf530aa4 | 183 | /* pacer, counter, dio registers */ |
59c7dd3d IM |
184 | #define ADC8254 0 |
185 | #define DIO_8255 4 | |
186 | #define DAC8254 8 | |
187 | ||
cf530aa4 | 188 | /* analog output registers for 100x, 1200 series */ |
59c7dd3d IM |
189 | static inline unsigned int DAC_DATA_REG(unsigned int channel) |
190 | { | |
191 | return 2 * (channel & 0x1); | |
192 | } | |
193 | ||
194 | /* analog output registers for 1602 series*/ | |
cf530aa4 BP |
195 | #define DACDATA 0 /* DAC DATA register */ |
196 | #define DACFIFOCLR 2 /* DAC FIFO CLEAR */ | |
59c7dd3d | 197 | |
cf530aa4 | 198 | /* bit in hexadecimal representation of range index that indicates unipolar input range */ |
59c7dd3d | 199 | #define IS_UNIPOLAR 0x4 |
cf530aa4 | 200 | /* analog input ranges for most boards */ |
9ced1de6 | 201 | static const struct comedi_lrange cb_pcidas_ranges = { |
59c7dd3d IM |
202 | 8, |
203 | { | |
0a85b6f0 MT |
204 | BIP_RANGE(10), |
205 | BIP_RANGE(5), | |
206 | BIP_RANGE(2.5), | |
207 | BIP_RANGE(1.25), | |
208 | UNI_RANGE(10), | |
209 | UNI_RANGE(5), | |
210 | UNI_RANGE(2.5), | |
211 | UNI_RANGE(1.25) | |
212 | } | |
59c7dd3d IM |
213 | }; |
214 | ||
cf530aa4 | 215 | /* pci-das1001 input ranges */ |
9ced1de6 | 216 | static const struct comedi_lrange cb_pcidas_alt_ranges = { |
59c7dd3d IM |
217 | 8, |
218 | { | |
0a85b6f0 MT |
219 | BIP_RANGE(10), |
220 | BIP_RANGE(1), | |
221 | BIP_RANGE(0.1), | |
222 | BIP_RANGE(0.01), | |
223 | UNI_RANGE(10), | |
224 | UNI_RANGE(1), | |
225 | UNI_RANGE(0.1), | |
226 | UNI_RANGE(0.01) | |
227 | } | |
59c7dd3d IM |
228 | }; |
229 | ||
cf530aa4 | 230 | /* analog output ranges */ |
9ced1de6 | 231 | static const struct comedi_lrange cb_pcidas_ao_ranges = { |
59c7dd3d IM |
232 | 4, |
233 | { | |
0a85b6f0 MT |
234 | BIP_RANGE(5), |
235 | BIP_RANGE(10), | |
236 | UNI_RANGE(5), | |
237 | UNI_RANGE(10), | |
238 | } | |
59c7dd3d IM |
239 | }; |
240 | ||
241 | enum trimpot_model { | |
242 | AD7376, | |
243 | AD8402, | |
244 | }; | |
245 | ||
5c2670cb | 246 | struct cb_pcidas_board { |
59c7dd3d IM |
247 | const char *name; |
248 | unsigned short device_id; | |
cf530aa4 BP |
249 | int ai_se_chans; /* Inputs in single-ended mode */ |
250 | int ai_diff_chans; /* Inputs in differential mode */ | |
251 | int ai_bits; /* analog input resolution */ | |
252 | int ai_speed; /* fastest conversion period in ns */ | |
253 | int ao_nchan; /* number of analog out channels */ | |
254 | int has_ao_fifo; /* analog output has fifo */ | |
255 | int ao_scan_speed; /* analog output speed for 1602 series (for a scan, not conversion) */ | |
256 | int fifo_size; /* number of samples fifo can hold */ | |
9ced1de6 | 257 | const struct comedi_lrange *ranges; |
59c7dd3d IM |
258 | enum trimpot_model trimpot; |
259 | unsigned has_dac08:1; | |
5c2670cb | 260 | }; |
59c7dd3d | 261 | |
5c2670cb | 262 | static const struct cb_pcidas_board cb_pcidas_boards[] = { |
59c7dd3d | 263 | { |
0a85b6f0 MT |
264 | .name = "pci-das1602/16", |
265 | .device_id = 0x1, | |
266 | .ai_se_chans = 16, | |
267 | .ai_diff_chans = 8, | |
268 | .ai_bits = 16, | |
269 | .ai_speed = 5000, | |
270 | .ao_nchan = 2, | |
271 | .has_ao_fifo = 1, | |
272 | .ao_scan_speed = 10000, | |
273 | .fifo_size = 512, | |
274 | .ranges = &cb_pcidas_ranges, | |
275 | .trimpot = AD8402, | |
276 | .has_dac08 = 1, | |
277 | }, | |
59c7dd3d | 278 | { |
0a85b6f0 MT |
279 | .name = "pci-das1200", |
280 | .device_id = 0xF, | |
281 | .ai_se_chans = 16, | |
282 | .ai_diff_chans = 8, | |
283 | .ai_bits = 12, | |
284 | .ai_speed = 3200, | |
285 | .ao_nchan = 2, | |
286 | .has_ao_fifo = 0, | |
287 | .fifo_size = 1024, | |
288 | .ranges = &cb_pcidas_ranges, | |
289 | .trimpot = AD7376, | |
290 | .has_dac08 = 0, | |
291 | }, | |
59c7dd3d | 292 | { |
0a85b6f0 MT |
293 | .name = "pci-das1602/12", |
294 | .device_id = 0x10, | |
295 | .ai_se_chans = 16, | |
296 | .ai_diff_chans = 8, | |
297 | .ai_bits = 12, | |
298 | .ai_speed = 3200, | |
299 | .ao_nchan = 2, | |
300 | .has_ao_fifo = 1, | |
301 | .ao_scan_speed = 4000, | |
302 | .fifo_size = 1024, | |
303 | .ranges = &cb_pcidas_ranges, | |
304 | .trimpot = AD7376, | |
305 | .has_dac08 = 0, | |
306 | }, | |
59c7dd3d | 307 | { |
0a85b6f0 MT |
308 | .name = "pci-das1200/jr", |
309 | .device_id = 0x19, | |
310 | .ai_se_chans = 16, | |
311 | .ai_diff_chans = 8, | |
312 | .ai_bits = 12, | |
313 | .ai_speed = 3200, | |
314 | .ao_nchan = 0, | |
315 | .has_ao_fifo = 0, | |
316 | .fifo_size = 1024, | |
317 | .ranges = &cb_pcidas_ranges, | |
318 | .trimpot = AD7376, | |
319 | .has_dac08 = 0, | |
320 | }, | |
59c7dd3d | 321 | { |
0a85b6f0 MT |
322 | .name = "pci-das1602/16/jr", |
323 | .device_id = 0x1C, | |
324 | .ai_se_chans = 16, | |
325 | .ai_diff_chans = 8, | |
326 | .ai_bits = 16, | |
327 | .ai_speed = 5000, | |
328 | .ao_nchan = 0, | |
329 | .has_ao_fifo = 0, | |
330 | .fifo_size = 512, | |
331 | .ranges = &cb_pcidas_ranges, | |
332 | .trimpot = AD8402, | |
333 | .has_dac08 = 1, | |
334 | }, | |
59c7dd3d | 335 | { |
0a85b6f0 MT |
336 | .name = "pci-das1000", |
337 | .device_id = 0x4C, | |
338 | .ai_se_chans = 16, | |
339 | .ai_diff_chans = 8, | |
340 | .ai_bits = 12, | |
341 | .ai_speed = 4000, | |
342 | .ao_nchan = 0, | |
343 | .has_ao_fifo = 0, | |
344 | .fifo_size = 1024, | |
345 | .ranges = &cb_pcidas_ranges, | |
346 | .trimpot = AD7376, | |
347 | .has_dac08 = 0, | |
348 | }, | |
59c7dd3d | 349 | { |
0a85b6f0 MT |
350 | .name = "pci-das1001", |
351 | .device_id = 0x1a, | |
352 | .ai_se_chans = 16, | |
353 | .ai_diff_chans = 8, | |
354 | .ai_bits = 12, | |
355 | .ai_speed = 6800, | |
356 | .ao_nchan = 2, | |
357 | .has_ao_fifo = 0, | |
358 | .fifo_size = 1024, | |
359 | .ranges = &cb_pcidas_alt_ranges, | |
360 | .trimpot = AD7376, | |
361 | .has_dac08 = 0, | |
362 | }, | |
59c7dd3d | 363 | { |
0a85b6f0 MT |
364 | .name = "pci-das1002", |
365 | .device_id = 0x1b, | |
366 | .ai_se_chans = 16, | |
367 | .ai_diff_chans = 8, | |
368 | .ai_bits = 12, | |
369 | .ai_speed = 6800, | |
370 | .ao_nchan = 2, | |
371 | .has_ao_fifo = 0, | |
372 | .fifo_size = 1024, | |
373 | .ranges = &cb_pcidas_ranges, | |
374 | .trimpot = AD7376, | |
375 | .has_dac08 = 0, | |
376 | }, | |
59c7dd3d IM |
377 | }; |
378 | ||
59c7dd3d | 379 | static DEFINE_PCI_DEVICE_TABLE(cb_pcidas_pci_table) = { |
0a85b6f0 MT |
380 | { |
381 | PCI_VENDOR_ID_CB, 0x0001, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, { | |
382 | PCI_VENDOR_ID_CB, 0x000f, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, { | |
383 | PCI_VENDOR_ID_CB, 0x0010, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, { | |
384 | PCI_VENDOR_ID_CB, 0x0019, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, { | |
385 | PCI_VENDOR_ID_CB, 0x001c, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, { | |
386 | PCI_VENDOR_ID_CB, 0x004c, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, { | |
387 | PCI_VENDOR_ID_CB, 0x001a, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, { | |
388 | PCI_VENDOR_ID_CB, 0x001b, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, { | |
389 | 0} | |
59c7dd3d IM |
390 | }; |
391 | ||
392 | MODULE_DEVICE_TABLE(pci, cb_pcidas_pci_table); | |
393 | ||
394 | /* | |
395 | * Useful for shorthand access to the particular board structure | |
396 | */ | |
5c2670cb | 397 | #define thisboard ((const struct cb_pcidas_board *)dev->board_ptr) |
59c7dd3d IM |
398 | |
399 | /* this structure is for data unique to this hardware driver. If | |
400 | several hardware drivers keep similar information in this structure, | |
71b5f4f1 | 401 | feel free to suggest moving the variable to the struct comedi_device struct. */ |
c77e2589 | 402 | struct cb_pcidas_private { |
59c7dd3d IM |
403 | /* would be useful for a PCI device */ |
404 | struct pci_dev *pci_dev; | |
cf530aa4 | 405 | /* base addresses */ |
59c7dd3d IM |
406 | unsigned long s5933_config; |
407 | unsigned long control_status; | |
408 | unsigned long adc_fifo; | |
409 | unsigned long pacer_counter_dio; | |
410 | unsigned long ao_registers; | |
cf530aa4 | 411 | /* divisors of master clock for analog input pacing */ |
59c7dd3d IM |
412 | unsigned int divisor1; |
413 | unsigned int divisor2; | |
cf530aa4 BP |
414 | volatile unsigned int count; /* number of analog input samples remaining */ |
415 | volatile unsigned int adc_fifo_bits; /* bits to write to interupt/adcfifo register */ | |
416 | volatile unsigned int s5933_intcsr_bits; /* bits to write to amcc s5933 interrupt control/status register */ | |
417 | volatile unsigned int ao_control_bits; /* bits to write to ao control and status register */ | |
790c5541 BP |
418 | short ai_buffer[AI_BUFFER_SIZE]; |
419 | short ao_buffer[AO_BUFFER_SIZE]; | |
cf530aa4 | 420 | /* divisors of master clock for analog output pacing */ |
59c7dd3d IM |
421 | unsigned int ao_divisor1; |
422 | unsigned int ao_divisor2; | |
cf530aa4 BP |
423 | volatile unsigned int ao_count; /* number of analog output samples remaining */ |
424 | int ao_value[2]; /* remember what the analog outputs are set to, to allow readback */ | |
425 | unsigned int caldac_value[NUM_CHANNELS_8800]; /* for readback of caldac */ | |
426 | unsigned int trimpot_value[NUM_CHANNELS_8402]; /* for readback of trimpot */ | |
59c7dd3d IM |
427 | unsigned int dac08_value; |
428 | unsigned int calibration_source; | |
c77e2589 | 429 | }; |
59c7dd3d IM |
430 | |
431 | /* | |
432 | * most drivers define the following macro to make it easy to | |
433 | * access the private structure. | |
434 | */ | |
c77e2589 | 435 | #define devpriv ((struct cb_pcidas_private *)dev->private) |
59c7dd3d IM |
436 | |
437 | /* | |
139dfbdf | 438 | * The struct comedi_driver structure tells the Comedi core module |
59c7dd3d IM |
439 | * which functions to call to configure/deconfigure (attach/detach) |
440 | * the board, and also about the kernel module that contains | |
441 | * the device code. | |
442 | */ | |
0a85b6f0 MT |
443 | static int cb_pcidas_attach(struct comedi_device *dev, |
444 | struct comedi_devconfig *it); | |
da91b269 | 445 | static int cb_pcidas_detach(struct comedi_device *dev); |
139dfbdf | 446 | static struct comedi_driver driver_cb_pcidas = { |
68c3dbff BP |
447 | .driver_name = "cb_pcidas", |
448 | .module = THIS_MODULE, | |
449 | .attach = cb_pcidas_attach, | |
450 | .detach = cb_pcidas_detach, | |
59c7dd3d IM |
451 | }; |
452 | ||
0a85b6f0 MT |
453 | static int cb_pcidas_ai_rinsn(struct comedi_device *dev, |
454 | struct comedi_subdevice *s, | |
455 | struct comedi_insn *insn, unsigned int *data); | |
814900c9 | 456 | static int ai_config_insn(struct comedi_device *dev, struct comedi_subdevice *s, |
0a85b6f0 MT |
457 | struct comedi_insn *insn, unsigned int *data); |
458 | static int cb_pcidas_ao_nofifo_winsn(struct comedi_device *dev, | |
459 | struct comedi_subdevice *s, | |
460 | struct comedi_insn *insn, | |
461 | unsigned int *data); | |
462 | static int cb_pcidas_ao_fifo_winsn(struct comedi_device *dev, | |
463 | struct comedi_subdevice *s, | |
464 | struct comedi_insn *insn, | |
465 | unsigned int *data); | |
466 | static int cb_pcidas_ao_readback_insn(struct comedi_device *dev, | |
467 | struct comedi_subdevice *s, | |
468 | struct comedi_insn *insn, | |
469 | unsigned int *data); | |
470 | static int cb_pcidas_ai_cmd(struct comedi_device *dev, | |
471 | struct comedi_subdevice *s); | |
472 | static int cb_pcidas_ai_cmdtest(struct comedi_device *dev, | |
473 | struct comedi_subdevice *s, | |
474 | struct comedi_cmd *cmd); | |
475 | static int cb_pcidas_ao_cmd(struct comedi_device *dev, | |
476 | struct comedi_subdevice *s); | |
d163679c BP |
477 | static int cb_pcidas_ao_inttrig(struct comedi_device *dev, |
478 | struct comedi_subdevice *subdev, | |
479 | unsigned int trig_num); | |
0a85b6f0 MT |
480 | static int cb_pcidas_ao_cmdtest(struct comedi_device *dev, |
481 | struct comedi_subdevice *s, | |
482 | struct comedi_cmd *cmd); | |
70265d24 | 483 | static irqreturn_t cb_pcidas_interrupt(int irq, void *d); |
814900c9 | 484 | static void handle_ao_interrupt(struct comedi_device *dev, unsigned int status); |
0a85b6f0 MT |
485 | static int cb_pcidas_cancel(struct comedi_device *dev, |
486 | struct comedi_subdevice *s); | |
487 | static int cb_pcidas_ao_cancel(struct comedi_device *dev, | |
488 | struct comedi_subdevice *s); | |
814900c9 | 489 | static void cb_pcidas_load_counters(struct comedi_device *dev, unsigned int *ns, |
0a85b6f0 MT |
490 | int round_flags); |
491 | static int eeprom_read_insn(struct comedi_device *dev, | |
492 | struct comedi_subdevice *s, | |
493 | struct comedi_insn *insn, unsigned int *data); | |
494 | static int caldac_read_insn(struct comedi_device *dev, | |
495 | struct comedi_subdevice *s, | |
496 | struct comedi_insn *insn, unsigned int *data); | |
497 | static int caldac_write_insn(struct comedi_device *dev, | |
498 | struct comedi_subdevice *s, | |
499 | struct comedi_insn *insn, unsigned int *data); | |
500 | static int trimpot_read_insn(struct comedi_device *dev, | |
501 | struct comedi_subdevice *s, | |
502 | struct comedi_insn *insn, unsigned int *data); | |
503 | static int cb_pcidas_trimpot_write(struct comedi_device *dev, | |
504 | unsigned int channel, unsigned int value); | |
505 | static int trimpot_write_insn(struct comedi_device *dev, | |
506 | struct comedi_subdevice *s, | |
507 | struct comedi_insn *insn, unsigned int *data); | |
508 | static int dac08_read_insn(struct comedi_device *dev, | |
509 | struct comedi_subdevice *s, struct comedi_insn *insn, | |
510 | unsigned int *data); | |
814900c9 | 511 | static int dac08_write(struct comedi_device *dev, unsigned int value); |
0a85b6f0 MT |
512 | static int dac08_write_insn(struct comedi_device *dev, |
513 | struct comedi_subdevice *s, | |
514 | struct comedi_insn *insn, unsigned int *data); | |
814900c9 | 515 | static int caldac_8800_write(struct comedi_device *dev, unsigned int address, |
0a85b6f0 | 516 | uint8_t value); |
814900c9 BP |
517 | static int trimpot_7376_write(struct comedi_device *dev, uint8_t value); |
518 | static int trimpot_8402_write(struct comedi_device *dev, unsigned int channel, | |
0a85b6f0 | 519 | uint8_t value); |
814900c9 | 520 | static int nvram_read(struct comedi_device *dev, unsigned int address, |
2d238b29 | 521 | uint8_t *data); |
59c7dd3d | 522 | |
814900c9 | 523 | static inline unsigned int cal_enable_bits(struct comedi_device *dev) |
59c7dd3d IM |
524 | { |
525 | return CAL_EN_BIT | CAL_SRC_BITS(devpriv->calibration_source); | |
526 | } | |
527 | ||
528 | /* | |
529 | * Attach is called by the Comedi core to configure the driver | |
530 | * for a particular board. | |
531 | */ | |
0a85b6f0 MT |
532 | static int cb_pcidas_attach(struct comedi_device *dev, |
533 | struct comedi_devconfig *it) | |
59c7dd3d | 534 | { |
34c43922 | 535 | struct comedi_subdevice *s; |
59c7dd3d IM |
536 | struct pci_dev *pcidev; |
537 | int index; | |
538 | int i; | |
539 | ||
540 | printk("comedi%d: cb_pcidas: ", dev->minor); | |
541 | ||
542 | /* | |
543 | * Allocate the private structure area. | |
544 | */ | |
c77e2589 | 545 | if (alloc_private(dev, sizeof(struct cb_pcidas_private)) < 0) |
59c7dd3d IM |
546 | return -ENOMEM; |
547 | ||
548 | /* | |
549 | * Probe the device to determine what device in the series it is. | |
550 | */ | |
551 | printk("\n"); | |
552 | ||
553 | for (pcidev = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, NULL); | |
0a85b6f0 MT |
554 | pcidev != NULL; |
555 | pcidev = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, pcidev)) { | |
cf530aa4 | 556 | /* is it not a computer boards card? */ |
59c7dd3d IM |
557 | if (pcidev->vendor != PCI_VENDOR_ID_CB) |
558 | continue; | |
cf530aa4 | 559 | /* loop through cards supported by this driver */ |
8629efa4 | 560 | for (index = 0; index < ARRAY_SIZE(cb_pcidas_boards); index++) { |
59c7dd3d IM |
561 | if (cb_pcidas_boards[index].device_id != pcidev->device) |
562 | continue; | |
cf530aa4 | 563 | /* was a particular bus/slot requested? */ |
59c7dd3d | 564 | if (it->options[0] || it->options[1]) { |
cf530aa4 | 565 | /* are we on the wrong bus/slot? */ |
59c7dd3d | 566 | if (pcidev->bus->number != it->options[0] || |
0a85b6f0 | 567 | PCI_SLOT(pcidev->devfn) != it->options[1]) { |
59c7dd3d IM |
568 | continue; |
569 | } | |
570 | } | |
571 | devpriv->pci_dev = pcidev; | |
572 | dev->board_ptr = cb_pcidas_boards + index; | |
573 | goto found; | |
574 | } | |
575 | } | |
576 | ||
577 | printk("No supported ComputerBoards/MeasurementComputing card found on " | |
0a85b6f0 | 578 | "requested position\n"); |
59c7dd3d IM |
579 | return -EIO; |
580 | ||
0a85b6f0 | 581 | found: |
59c7dd3d IM |
582 | |
583 | printk("Found %s on bus %i, slot %i\n", cb_pcidas_boards[index].name, | |
0a85b6f0 | 584 | pcidev->bus->number, PCI_SLOT(pcidev->devfn)); |
59c7dd3d IM |
585 | |
586 | /* | |
587 | * Enable PCI device and reserve I/O ports. | |
588 | */ | |
589 | if (comedi_pci_enable(pcidev, "cb_pcidas")) { | |
590 | printk(" Failed to enable PCI device and request regions\n"); | |
591 | return -EIO; | |
592 | } | |
593 | /* | |
594 | * Initialize devpriv->control_status and devpriv->adc_fifo to point to | |
595 | * their base address. | |
596 | */ | |
597 | devpriv->s5933_config = | |
0a85b6f0 | 598 | pci_resource_start(devpriv->pci_dev, S5933_BADRINDEX); |
59c7dd3d | 599 | devpriv->control_status = |
0a85b6f0 | 600 | pci_resource_start(devpriv->pci_dev, CONT_STAT_BADRINDEX); |
59c7dd3d | 601 | devpriv->adc_fifo = |
0a85b6f0 | 602 | pci_resource_start(devpriv->pci_dev, ADC_FIFO_BADRINDEX); |
59c7dd3d | 603 | devpriv->pacer_counter_dio = |
0a85b6f0 | 604 | pci_resource_start(devpriv->pci_dev, PACER_BADRINDEX); |
59c7dd3d IM |
605 | if (thisboard->ao_nchan) { |
606 | devpriv->ao_registers = | |
0a85b6f0 | 607 | pci_resource_start(devpriv->pci_dev, AO_BADRINDEX); |
59c7dd3d | 608 | } |
cf530aa4 | 609 | /* disable and clear interrupts on amcc s5933 */ |
59c7dd3d | 610 | outl(INTCSR_INBOX_INTR_STATUS, |
0a85b6f0 | 611 | devpriv->s5933_config + AMCC_OP_REG_INTCSR); |
59c7dd3d | 612 | |
cf530aa4 | 613 | /* get irq */ |
5f74ea14 | 614 | if (request_irq(devpriv->pci_dev->irq, cb_pcidas_interrupt, |
59c7dd3d IM |
615 | IRQF_SHARED, "cb_pcidas", dev)) { |
616 | printk(" unable to allocate irq %d\n", devpriv->pci_dev->irq); | |
617 | return -EINVAL; | |
618 | } | |
619 | dev->irq = devpriv->pci_dev->irq; | |
620 | ||
cf530aa4 | 621 | /* Initialize dev->board_name */ |
59c7dd3d IM |
622 | dev->board_name = thisboard->name; |
623 | ||
624 | /* | |
625 | * Allocate the subdevice structures. | |
626 | */ | |
627 | if (alloc_subdevices(dev, 7) < 0) | |
628 | return -ENOMEM; | |
629 | ||
630 | s = dev->subdevices + 0; | |
631 | /* analog input subdevice */ | |
632 | dev->read_subdev = s; | |
633 | s->type = COMEDI_SUBD_AI; | |
634 | s->subdev_flags = SDF_READABLE | SDF_GROUND | SDF_DIFF | SDF_CMD_READ; | |
635 | /* WARNING: Number of inputs in differential mode is ignored */ | |
636 | s->n_chan = thisboard->ai_se_chans; | |
637 | s->len_chanlist = thisboard->ai_se_chans; | |
638 | s->maxdata = (1 << thisboard->ai_bits) - 1; | |
639 | s->range_table = thisboard->ranges; | |
640 | s->insn_read = cb_pcidas_ai_rinsn; | |
641 | s->insn_config = ai_config_insn; | |
642 | s->do_cmd = cb_pcidas_ai_cmd; | |
643 | s->do_cmdtest = cb_pcidas_ai_cmdtest; | |
644 | s->cancel = cb_pcidas_cancel; | |
645 | ||
646 | /* analog output subdevice */ | |
647 | s = dev->subdevices + 1; | |
648 | if (thisboard->ao_nchan) { | |
649 | s->type = COMEDI_SUBD_AO; | |
650 | s->subdev_flags = SDF_READABLE | SDF_WRITABLE | SDF_GROUND; | |
651 | s->n_chan = thisboard->ao_nchan; | |
cf530aa4 | 652 | /* analog out resolution is the same as analog input resolution, so use ai_bits */ |
59c7dd3d IM |
653 | s->maxdata = (1 << thisboard->ai_bits) - 1; |
654 | s->range_table = &cb_pcidas_ao_ranges; | |
655 | s->insn_read = cb_pcidas_ao_readback_insn; | |
656 | if (thisboard->has_ao_fifo) { | |
657 | dev->write_subdev = s; | |
658 | s->subdev_flags |= SDF_CMD_WRITE; | |
659 | s->insn_write = cb_pcidas_ao_fifo_winsn; | |
660 | s->do_cmdtest = cb_pcidas_ao_cmdtest; | |
661 | s->do_cmd = cb_pcidas_ao_cmd; | |
662 | s->cancel = cb_pcidas_ao_cancel; | |
663 | } else { | |
664 | s->insn_write = cb_pcidas_ao_nofifo_winsn; | |
665 | } | |
666 | } else { | |
667 | s->type = COMEDI_SUBD_UNUSED; | |
668 | } | |
669 | ||
670 | /* 8255 */ | |
671 | s = dev->subdevices + 2; | |
672 | subdev_8255_init(dev, s, NULL, devpriv->pacer_counter_dio + DIO_8255); | |
673 | ||
cf530aa4 | 674 | /* serial EEPROM, */ |
59c7dd3d IM |
675 | s = dev->subdevices + 3; |
676 | s->type = COMEDI_SUBD_MEMORY; | |
677 | s->subdev_flags = SDF_READABLE | SDF_INTERNAL; | |
678 | s->n_chan = 256; | |
679 | s->maxdata = 0xff; | |
680 | s->insn_read = eeprom_read_insn; | |
681 | ||
cf530aa4 | 682 | /* 8800 caldac */ |
59c7dd3d IM |
683 | s = dev->subdevices + 4; |
684 | s->type = COMEDI_SUBD_CALIB; | |
685 | s->subdev_flags = SDF_READABLE | SDF_WRITABLE | SDF_INTERNAL; | |
686 | s->n_chan = NUM_CHANNELS_8800; | |
687 | s->maxdata = 0xff; | |
688 | s->insn_read = caldac_read_insn; | |
689 | s->insn_write = caldac_write_insn; | |
690 | for (i = 0; i < s->n_chan; i++) | |
691 | caldac_8800_write(dev, i, s->maxdata / 2); | |
692 | ||
cf530aa4 | 693 | /* trim potentiometer */ |
59c7dd3d IM |
694 | s = dev->subdevices + 5; |
695 | s->type = COMEDI_SUBD_CALIB; | |
696 | s->subdev_flags = SDF_READABLE | SDF_WRITABLE | SDF_INTERNAL; | |
697 | if (thisboard->trimpot == AD7376) { | |
698 | s->n_chan = NUM_CHANNELS_7376; | |
699 | s->maxdata = 0x7f; | |
700 | } else { | |
701 | s->n_chan = NUM_CHANNELS_8402; | |
702 | s->maxdata = 0xff; | |
703 | } | |
704 | s->insn_read = trimpot_read_insn; | |
705 | s->insn_write = trimpot_write_insn; | |
706 | for (i = 0; i < s->n_chan; i++) | |
707 | cb_pcidas_trimpot_write(dev, i, s->maxdata / 2); | |
708 | ||
cf530aa4 | 709 | /* dac08 caldac */ |
59c7dd3d IM |
710 | s = dev->subdevices + 6; |
711 | if (thisboard->has_dac08) { | |
712 | s->type = COMEDI_SUBD_CALIB; | |
713 | s->subdev_flags = SDF_READABLE | SDF_WRITABLE | SDF_INTERNAL; | |
714 | s->n_chan = NUM_CHANNELS_DAC08; | |
715 | s->insn_read = dac08_read_insn; | |
716 | s->insn_write = dac08_write_insn; | |
717 | s->maxdata = 0xff; | |
718 | dac08_write(dev, s->maxdata / 2); | |
719 | } else | |
720 | s->type = COMEDI_SUBD_UNUSED; | |
721 | ||
cf530aa4 | 722 | /* make sure mailbox 4 is empty */ |
59c7dd3d IM |
723 | inl(devpriv->s5933_config + AMCC_OP_REG_IMB4); |
724 | /* Set bits to enable incoming mailbox interrupts on amcc s5933. */ | |
725 | devpriv->s5933_intcsr_bits = | |
0a85b6f0 MT |
726 | INTCSR_INBOX_BYTE(3) | INTCSR_INBOX_SELECT(3) | |
727 | INTCSR_INBOX_FULL_INT; | |
cf530aa4 | 728 | /* clear and enable interrupt on amcc s5933 */ |
59c7dd3d | 729 | outl(devpriv->s5933_intcsr_bits | INTCSR_INBOX_INTR_STATUS, |
0a85b6f0 | 730 | devpriv->s5933_config + AMCC_OP_REG_INTCSR); |
59c7dd3d IM |
731 | |
732 | return 1; | |
733 | } | |
734 | ||
735 | /* | |
736 | * cb_pcidas_detach is called to deconfigure a device. It should deallocate | |
737 | * resources. | |
738 | * This function is also called when _attach() fails, so it should be | |
739 | * careful not to release resources that were not necessarily | |
740 | * allocated by _attach(). dev->private and dev->subdevices are | |
741 | * deallocated automatically by the core. | |
742 | */ | |
da91b269 | 743 | static int cb_pcidas_detach(struct comedi_device *dev) |
59c7dd3d IM |
744 | { |
745 | printk("comedi%d: cb_pcidas: remove\n", dev->minor); | |
746 | ||
747 | if (devpriv) { | |
748 | if (devpriv->s5933_config) { | |
cf530aa4 | 749 | /* disable and clear interrupts on amcc s5933 */ |
59c7dd3d | 750 | outl(INTCSR_INBOX_INTR_STATUS, |
0a85b6f0 | 751 | devpriv->s5933_config + AMCC_OP_REG_INTCSR); |
59c7dd3d | 752 | #ifdef CB_PCIDAS_DEBUG |
5f74ea14 | 753 | printk("detaching, incsr is 0x%x\n", |
0a85b6f0 | 754 | inl(devpriv->s5933_config + AMCC_OP_REG_INTCSR)); |
59c7dd3d IM |
755 | #endif |
756 | } | |
757 | } | |
758 | if (dev->irq) | |
5f74ea14 | 759 | free_irq(dev->irq, dev); |
59c7dd3d IM |
760 | if (dev->subdevices) |
761 | subdev_8255_cleanup(dev, dev->subdevices + 2); | |
762 | if (devpriv && devpriv->pci_dev) { | |
2d238b29 | 763 | if (devpriv->s5933_config) |
59c7dd3d | 764 | comedi_pci_disable(devpriv->pci_dev); |
59c7dd3d IM |
765 | pci_dev_put(devpriv->pci_dev); |
766 | } | |
767 | ||
768 | return 0; | |
769 | } | |
770 | ||
771 | /* | |
772 | * "instructions" read/write data in "one-shot" or "software-triggered" | |
773 | * mode. | |
774 | */ | |
0a85b6f0 MT |
775 | static int cb_pcidas_ai_rinsn(struct comedi_device *dev, |
776 | struct comedi_subdevice *s, | |
777 | struct comedi_insn *insn, unsigned int *data) | |
59c7dd3d IM |
778 | { |
779 | int n, i; | |
780 | unsigned int bits; | |
781 | static const int timeout = 10000; | |
782 | int channel; | |
cf530aa4 | 783 | /* enable calibration input if appropriate */ |
59c7dd3d IM |
784 | if (insn->chanspec & CR_ALT_SOURCE) { |
785 | outw(cal_enable_bits(dev), | |
0a85b6f0 | 786 | devpriv->control_status + CALIBRATION_REG); |
59c7dd3d IM |
787 | channel = 0; |
788 | } else { | |
789 | outw(0, devpriv->control_status + CALIBRATION_REG); | |
790 | channel = CR_CHAN(insn->chanspec); | |
791 | } | |
cf530aa4 | 792 | /* set mux limits and gain */ |
59c7dd3d | 793 | bits = BEGIN_SCAN(channel) | |
0a85b6f0 | 794 | END_SCAN(channel) | GAIN_BITS(CR_RANGE(insn->chanspec)); |
cf530aa4 | 795 | /* set unipolar/bipolar */ |
59c7dd3d IM |
796 | if (CR_RANGE(insn->chanspec) & IS_UNIPOLAR) |
797 | bits |= UNIP; | |
cf530aa4 | 798 | /* set singleended/differential */ |
59c7dd3d IM |
799 | if (CR_AREF(insn->chanspec) != AREF_DIFF) |
800 | bits |= SE; | |
801 | outw(bits, devpriv->control_status + ADCMUX_CONT); | |
802 | ||
803 | /* clear fifo */ | |
804 | outw(0, devpriv->adc_fifo + ADCFIFOCLR); | |
805 | ||
806 | /* convert n samples */ | |
807 | for (n = 0; n < insn->n; n++) { | |
808 | /* trigger conversion */ | |
809 | outw(0, devpriv->adc_fifo + ADCDATA); | |
810 | ||
811 | /* wait for conversion to end */ | |
812 | /* return -ETIMEDOUT if there is a timeout */ | |
813 | for (i = 0; i < timeout; i++) { | |
814 | if (inw(devpriv->control_status + ADCMUX_CONT) & EOC) | |
815 | break; | |
816 | } | |
817 | if (i == timeout) | |
818 | return -ETIMEDOUT; | |
819 | ||
820 | /* read data */ | |
821 | data[n] = inw(devpriv->adc_fifo + ADCDATA); | |
822 | } | |
823 | ||
824 | /* return the number of samples read/written */ | |
825 | return n; | |
826 | } | |
827 | ||
0a85b6f0 MT |
828 | static int ai_config_calibration_source(struct comedi_device *dev, |
829 | unsigned int *data) | |
59c7dd3d IM |
830 | { |
831 | static const int num_calibration_sources = 8; | |
790c5541 | 832 | unsigned int source = data[1]; |
59c7dd3d IM |
833 | |
834 | if (source >= num_calibration_sources) { | |
835 | printk("invalid calibration source: %i\n", source); | |
836 | return -EINVAL; | |
837 | } | |
838 | ||
839 | devpriv->calibration_source = source; | |
840 | ||
841 | return 2; | |
842 | } | |
843 | ||
da91b269 | 844 | static int ai_config_insn(struct comedi_device *dev, struct comedi_subdevice *s, |
0a85b6f0 | 845 | struct comedi_insn *insn, unsigned int *data) |
59c7dd3d IM |
846 | { |
847 | int id = data[0]; | |
848 | ||
849 | switch (id) { | |
850 | case INSN_CONFIG_ALT_SOURCE: | |
851 | return ai_config_calibration_source(dev, data); | |
852 | break; | |
853 | default: | |
854 | return -EINVAL; | |
855 | break; | |
856 | } | |
857 | return -EINVAL; | |
858 | } | |
859 | ||
cf530aa4 | 860 | /* analog output insn for pcidas-1000 and 1200 series */ |
0a85b6f0 MT |
861 | static int cb_pcidas_ao_nofifo_winsn(struct comedi_device *dev, |
862 | struct comedi_subdevice *s, | |
863 | struct comedi_insn *insn, | |
864 | unsigned int *data) | |
59c7dd3d IM |
865 | { |
866 | int channel; | |
867 | unsigned long flags; | |
868 | ||
cf530aa4 | 869 | /* set channel and range */ |
59c7dd3d | 870 | channel = CR_CHAN(insn->chanspec); |
5f74ea14 | 871 | spin_lock_irqsave(&dev->spinlock, flags); |
59c7dd3d | 872 | devpriv->ao_control_bits &= |
0a85b6f0 | 873 | ~DAC_MODE_UPDATE_BOTH & ~DAC_RANGE_MASK(channel); |
59c7dd3d | 874 | devpriv->ao_control_bits |= |
0a85b6f0 | 875 | DACEN | DAC_RANGE(channel, CR_RANGE(insn->chanspec)); |
59c7dd3d | 876 | outw(devpriv->ao_control_bits, devpriv->control_status + DAC_CSR); |
5f74ea14 | 877 | spin_unlock_irqrestore(&dev->spinlock, flags); |
59c7dd3d | 878 | |
cf530aa4 | 879 | /* remember value for readback */ |
59c7dd3d | 880 | devpriv->ao_value[channel] = data[0]; |
cf530aa4 | 881 | /* send data */ |
59c7dd3d IM |
882 | outw(data[0], devpriv->ao_registers + DAC_DATA_REG(channel)); |
883 | ||
884 | return 1; | |
885 | } | |
886 | ||
cf530aa4 | 887 | /* analog output insn for pcidas-1602 series */ |
0a85b6f0 MT |
888 | static int cb_pcidas_ao_fifo_winsn(struct comedi_device *dev, |
889 | struct comedi_subdevice *s, | |
890 | struct comedi_insn *insn, unsigned int *data) | |
59c7dd3d IM |
891 | { |
892 | int channel; | |
893 | unsigned long flags; | |
894 | ||
cf530aa4 | 895 | /* clear dac fifo */ |
59c7dd3d IM |
896 | outw(0, devpriv->ao_registers + DACFIFOCLR); |
897 | ||
cf530aa4 | 898 | /* set channel and range */ |
59c7dd3d | 899 | channel = CR_CHAN(insn->chanspec); |
5f74ea14 | 900 | spin_lock_irqsave(&dev->spinlock, flags); |
59c7dd3d | 901 | devpriv->ao_control_bits &= |
0a85b6f0 MT |
902 | ~DAC_CHAN_EN(0) & ~DAC_CHAN_EN(1) & ~DAC_RANGE_MASK(channel) & |
903 | ~DAC_PACER_MASK; | |
59c7dd3d | 904 | devpriv->ao_control_bits |= |
0a85b6f0 MT |
905 | DACEN | DAC_RANGE(channel, |
906 | CR_RANGE(insn-> | |
907 | chanspec)) | DAC_CHAN_EN(channel) | | |
908 | DAC_START; | |
59c7dd3d | 909 | outw(devpriv->ao_control_bits, devpriv->control_status + DAC_CSR); |
5f74ea14 | 910 | spin_unlock_irqrestore(&dev->spinlock, flags); |
59c7dd3d | 911 | |
cf530aa4 | 912 | /* remember value for readback */ |
59c7dd3d | 913 | devpriv->ao_value[channel] = data[0]; |
cf530aa4 | 914 | /* send data */ |
59c7dd3d IM |
915 | outw(data[0], devpriv->ao_registers + DACDATA); |
916 | ||
917 | return 1; | |
918 | } | |
919 | ||
cf530aa4 BP |
920 | /* analog output readback insn */ |
921 | /* XXX loses track of analog output value back after an analog ouput command is executed */ | |
0a85b6f0 MT |
922 | static int cb_pcidas_ao_readback_insn(struct comedi_device *dev, |
923 | struct comedi_subdevice *s, | |
924 | struct comedi_insn *insn, | |
925 | unsigned int *data) | |
59c7dd3d IM |
926 | { |
927 | data[0] = devpriv->ao_value[CR_CHAN(insn->chanspec)]; | |
928 | ||
929 | return 1; | |
930 | } | |
931 | ||
0a85b6f0 MT |
932 | static int eeprom_read_insn(struct comedi_device *dev, |
933 | struct comedi_subdevice *s, | |
934 | struct comedi_insn *insn, unsigned int *data) | |
59c7dd3d IM |
935 | { |
936 | uint8_t nvram_data; | |
937 | int retval; | |
938 | ||
939 | retval = nvram_read(dev, CR_CHAN(insn->chanspec), &nvram_data); | |
940 | if (retval < 0) | |
941 | return retval; | |
942 | ||
943 | data[0] = nvram_data; | |
944 | ||
945 | return 1; | |
946 | } | |
947 | ||
0a85b6f0 MT |
948 | static int caldac_write_insn(struct comedi_device *dev, |
949 | struct comedi_subdevice *s, | |
950 | struct comedi_insn *insn, unsigned int *data) | |
59c7dd3d IM |
951 | { |
952 | const unsigned int channel = CR_CHAN(insn->chanspec); | |
953 | ||
954 | return caldac_8800_write(dev, channel, data[0]); | |
955 | } | |
956 | ||
0a85b6f0 MT |
957 | static int caldac_read_insn(struct comedi_device *dev, |
958 | struct comedi_subdevice *s, | |
959 | struct comedi_insn *insn, unsigned int *data) | |
59c7dd3d IM |
960 | { |
961 | data[0] = devpriv->caldac_value[CR_CHAN(insn->chanspec)]; | |
962 | ||
963 | return 1; | |
964 | } | |
965 | ||
966 | /* 1602/16 pregain offset */ | |
da91b269 | 967 | static int dac08_write(struct comedi_device *dev, unsigned int value) |
59c7dd3d IM |
968 | { |
969 | if (devpriv->dac08_value == value) | |
970 | return 1; | |
971 | ||
972 | devpriv->dac08_value = value; | |
973 | ||
974 | outw(cal_enable_bits(dev) | (value & 0xff), | |
0a85b6f0 | 975 | devpriv->control_status + CALIBRATION_REG); |
5f74ea14 | 976 | udelay(1); |
59c7dd3d | 977 | outw(cal_enable_bits(dev) | SELECT_DAC08_BIT | (value & 0xff), |
0a85b6f0 | 978 | devpriv->control_status + CALIBRATION_REG); |
5f74ea14 | 979 | udelay(1); |
59c7dd3d | 980 | outw(cal_enable_bits(dev) | (value & 0xff), |
0a85b6f0 | 981 | devpriv->control_status + CALIBRATION_REG); |
5f74ea14 | 982 | udelay(1); |
59c7dd3d IM |
983 | |
984 | return 1; | |
985 | } | |
986 | ||
0a85b6f0 MT |
987 | static int dac08_write_insn(struct comedi_device *dev, |
988 | struct comedi_subdevice *s, | |
989 | struct comedi_insn *insn, unsigned int *data) | |
59c7dd3d IM |
990 | { |
991 | return dac08_write(dev, data[0]); | |
992 | } | |
993 | ||
0a85b6f0 MT |
994 | static int dac08_read_insn(struct comedi_device *dev, |
995 | struct comedi_subdevice *s, struct comedi_insn *insn, | |
996 | unsigned int *data) | |
59c7dd3d IM |
997 | { |
998 | data[0] = devpriv->dac08_value; | |
999 | ||
1000 | return 1; | |
1001 | } | |
1002 | ||
da91b269 | 1003 | static int cb_pcidas_trimpot_write(struct comedi_device *dev, |
0a85b6f0 | 1004 | unsigned int channel, unsigned int value) |
59c7dd3d IM |
1005 | { |
1006 | if (devpriv->trimpot_value[channel] == value) | |
1007 | return 1; | |
1008 | ||
1009 | devpriv->trimpot_value[channel] = value; | |
1010 | switch (thisboard->trimpot) { | |
1011 | case AD7376: | |
1012 | trimpot_7376_write(dev, value); | |
1013 | break; | |
1014 | case AD8402: | |
1015 | trimpot_8402_write(dev, channel, value); | |
1016 | break; | |
1017 | default: | |
1018 | comedi_error(dev, "driver bug?"); | |
1019 | return -1; | |
1020 | break; | |
1021 | } | |
1022 | ||
1023 | return 1; | |
1024 | } | |
1025 | ||
0a85b6f0 MT |
1026 | static int trimpot_write_insn(struct comedi_device *dev, |
1027 | struct comedi_subdevice *s, | |
1028 | struct comedi_insn *insn, unsigned int *data) | |
59c7dd3d IM |
1029 | { |
1030 | unsigned int channel = CR_CHAN(insn->chanspec); | |
1031 | ||
1032 | return cb_pcidas_trimpot_write(dev, channel, data[0]); | |
1033 | } | |
1034 | ||
0a85b6f0 MT |
1035 | static int trimpot_read_insn(struct comedi_device *dev, |
1036 | struct comedi_subdevice *s, | |
1037 | struct comedi_insn *insn, unsigned int *data) | |
59c7dd3d IM |
1038 | { |
1039 | unsigned int channel = CR_CHAN(insn->chanspec); | |
1040 | ||
1041 | data[0] = devpriv->trimpot_value[channel]; | |
1042 | ||
1043 | return 1; | |
1044 | } | |
1045 | ||
0a85b6f0 MT |
1046 | static int cb_pcidas_ai_cmdtest(struct comedi_device *dev, |
1047 | struct comedi_subdevice *s, | |
1048 | struct comedi_cmd *cmd) | |
59c7dd3d IM |
1049 | { |
1050 | int err = 0; | |
1051 | int tmp; | |
1052 | int i, gain, start_chan; | |
1053 | ||
1054 | /* cmdtest tests a particular command to see if it is valid. | |
1055 | * Using the cmdtest ioctl, a user can create a valid cmd | |
1056 | * and then have it executes by the cmd ioctl. | |
1057 | * | |
1058 | * cmdtest returns 1,2,3,4 or 0, depending on which tests | |
1059 | * the command passes. */ | |
1060 | ||
1061 | /* step 1: make sure trigger sources are trivially valid */ | |
1062 | ||
1063 | tmp = cmd->start_src; | |
1064 | cmd->start_src &= TRIG_NOW | TRIG_EXT; | |
1065 | if (!cmd->start_src || tmp != cmd->start_src) | |
1066 | err++; | |
1067 | ||
1068 | tmp = cmd->scan_begin_src; | |
1069 | cmd->scan_begin_src &= TRIG_FOLLOW | TRIG_TIMER | TRIG_EXT; | |
1070 | if (!cmd->scan_begin_src || tmp != cmd->scan_begin_src) | |
1071 | err++; | |
1072 | ||
1073 | tmp = cmd->convert_src; | |
1074 | cmd->convert_src &= TRIG_TIMER | TRIG_NOW | TRIG_EXT; | |
1075 | if (!cmd->convert_src || tmp != cmd->convert_src) | |
1076 | err++; | |
1077 | ||
1078 | tmp = cmd->scan_end_src; | |
1079 | cmd->scan_end_src &= TRIG_COUNT; | |
1080 | if (!cmd->scan_end_src || tmp != cmd->scan_end_src) | |
1081 | err++; | |
1082 | ||
1083 | tmp = cmd->stop_src; | |
1084 | cmd->stop_src &= TRIG_COUNT | TRIG_NONE; | |
1085 | if (!cmd->stop_src || tmp != cmd->stop_src) | |
1086 | err++; | |
1087 | ||
1088 | if (err) | |
1089 | return 1; | |
1090 | ||
1091 | /* step 2: make sure trigger sources are unique and mutually compatible */ | |
1092 | ||
1093 | if (cmd->start_src != TRIG_NOW && cmd->start_src != TRIG_EXT) | |
1094 | err++; | |
1095 | if (cmd->scan_begin_src != TRIG_FOLLOW && | |
0a85b6f0 MT |
1096 | cmd->scan_begin_src != TRIG_TIMER && |
1097 | cmd->scan_begin_src != TRIG_EXT) | |
59c7dd3d IM |
1098 | err++; |
1099 | if (cmd->convert_src != TRIG_TIMER && | |
0a85b6f0 | 1100 | cmd->convert_src != TRIG_EXT && cmd->convert_src != TRIG_NOW) |
59c7dd3d IM |
1101 | err++; |
1102 | if (cmd->stop_src != TRIG_COUNT && cmd->stop_src != TRIG_NONE) | |
1103 | err++; | |
1104 | ||
cf530aa4 | 1105 | /* make sure trigger sources are compatible with each other */ |
59c7dd3d IM |
1106 | if (cmd->scan_begin_src == TRIG_FOLLOW && cmd->convert_src == TRIG_NOW) |
1107 | err++; | |
1108 | if (cmd->scan_begin_src != TRIG_FOLLOW && cmd->convert_src != TRIG_NOW) | |
1109 | err++; | |
1110 | if (cmd->start_src == TRIG_EXT && | |
0a85b6f0 | 1111 | (cmd->convert_src == TRIG_EXT || cmd->scan_begin_src == TRIG_EXT)) |
59c7dd3d IM |
1112 | err++; |
1113 | ||
1114 | if (err) | |
1115 | return 2; | |
1116 | ||
1117 | /* step 3: make sure arguments are trivially compatible */ | |
1118 | ||
1119 | if (cmd->start_arg != 0) { | |
1120 | cmd->start_arg = 0; | |
1121 | err++; | |
1122 | } | |
1123 | ||
1124 | if (cmd->scan_begin_src == TRIG_TIMER) { | |
1125 | if (cmd->scan_begin_arg < | |
0a85b6f0 | 1126 | thisboard->ai_speed * cmd->chanlist_len) { |
59c7dd3d | 1127 | cmd->scan_begin_arg = |
0a85b6f0 | 1128 | thisboard->ai_speed * cmd->chanlist_len; |
59c7dd3d IM |
1129 | err++; |
1130 | } | |
1131 | } | |
1132 | if (cmd->convert_src == TRIG_TIMER) { | |
1133 | if (cmd->convert_arg < thisboard->ai_speed) { | |
1134 | cmd->convert_arg = thisboard->ai_speed; | |
1135 | err++; | |
1136 | } | |
1137 | } | |
1138 | ||
1139 | if (cmd->scan_end_arg != cmd->chanlist_len) { | |
1140 | cmd->scan_end_arg = cmd->chanlist_len; | |
1141 | err++; | |
1142 | } | |
1143 | if (cmd->stop_src == TRIG_NONE) { | |
1144 | /* TRIG_NONE */ | |
1145 | if (cmd->stop_arg != 0) { | |
1146 | cmd->stop_arg = 0; | |
1147 | err++; | |
1148 | } | |
1149 | } | |
1150 | ||
1151 | if (err) | |
1152 | return 3; | |
1153 | ||
1154 | /* step 4: fix up any arguments */ | |
1155 | ||
1156 | if (cmd->scan_begin_src == TRIG_TIMER) { | |
1157 | tmp = cmd->scan_begin_arg; | |
1158 | i8253_cascade_ns_to_timer_2div(TIMER_BASE, | |
0a85b6f0 MT |
1159 | &(devpriv->divisor1), |
1160 | &(devpriv->divisor2), | |
1161 | &(cmd->scan_begin_arg), | |
1162 | cmd->flags & TRIG_ROUND_MASK); | |
59c7dd3d IM |
1163 | if (tmp != cmd->scan_begin_arg) |
1164 | err++; | |
1165 | } | |
1166 | if (cmd->convert_src == TRIG_TIMER) { | |
1167 | tmp = cmd->convert_arg; | |
1168 | i8253_cascade_ns_to_timer_2div(TIMER_BASE, | |
0a85b6f0 MT |
1169 | &(devpriv->divisor1), |
1170 | &(devpriv->divisor2), | |
1171 | &(cmd->convert_arg), | |
1172 | cmd->flags & TRIG_ROUND_MASK); | |
59c7dd3d IM |
1173 | if (tmp != cmd->convert_arg) |
1174 | err++; | |
1175 | } | |
1176 | ||
1177 | if (err) | |
1178 | return 4; | |
1179 | ||
cf530aa4 | 1180 | /* check channel/gain list against card's limitations */ |
59c7dd3d IM |
1181 | if (cmd->chanlist) { |
1182 | gain = CR_RANGE(cmd->chanlist[0]); | |
1183 | start_chan = CR_CHAN(cmd->chanlist[0]); | |
1184 | for (i = 1; i < cmd->chanlist_len; i++) { | |
1185 | if (CR_CHAN(cmd->chanlist[i]) != | |
0a85b6f0 | 1186 | (start_chan + i) % s->n_chan) { |
59c7dd3d | 1187 | comedi_error(dev, |
0a85b6f0 | 1188 | "entries in chanlist must be consecutive channels, counting upwards\n"); |
59c7dd3d IM |
1189 | err++; |
1190 | } | |
1191 | if (CR_RANGE(cmd->chanlist[i]) != gain) { | |
1192 | comedi_error(dev, | |
0a85b6f0 | 1193 | "entries in chanlist must all have the same gain\n"); |
59c7dd3d IM |
1194 | err++; |
1195 | } | |
1196 | } | |
1197 | } | |
1198 | ||
1199 | if (err) | |
1200 | return 5; | |
1201 | ||
1202 | return 0; | |
1203 | } | |
1204 | ||
0a85b6f0 MT |
1205 | static int cb_pcidas_ai_cmd(struct comedi_device *dev, |
1206 | struct comedi_subdevice *s) | |
59c7dd3d | 1207 | { |
d163679c | 1208 | struct comedi_async *async = s->async; |
ea6d0d4c | 1209 | struct comedi_cmd *cmd = &async->cmd; |
59c7dd3d IM |
1210 | unsigned int bits; |
1211 | unsigned long flags; | |
1212 | ||
cf530aa4 | 1213 | /* make sure CAL_EN_BIT is disabled */ |
59c7dd3d | 1214 | outw(0, devpriv->control_status + CALIBRATION_REG); |
cf530aa4 | 1215 | /* initialize before settings pacer source and count values */ |
59c7dd3d | 1216 | outw(0, devpriv->control_status + TRIG_CONTSTAT); |
cf530aa4 | 1217 | /* clear fifo */ |
59c7dd3d IM |
1218 | outw(0, devpriv->adc_fifo + ADCFIFOCLR); |
1219 | ||
cf530aa4 | 1220 | /* set mux limits, gain and pacer source */ |
59c7dd3d | 1221 | bits = BEGIN_SCAN(CR_CHAN(cmd->chanlist[0])) | |
0a85b6f0 MT |
1222 | END_SCAN(CR_CHAN(cmd->chanlist[cmd->chanlist_len - 1])) | |
1223 | GAIN_BITS(CR_RANGE(cmd->chanlist[0])); | |
cf530aa4 | 1224 | /* set unipolar/bipolar */ |
59c7dd3d IM |
1225 | if (CR_RANGE(cmd->chanlist[0]) & IS_UNIPOLAR) |
1226 | bits |= UNIP; | |
cf530aa4 | 1227 | /* set singleended/differential */ |
59c7dd3d IM |
1228 | if (CR_AREF(cmd->chanlist[0]) != AREF_DIFF) |
1229 | bits |= SE; | |
cf530aa4 | 1230 | /* set pacer source */ |
59c7dd3d IM |
1231 | if (cmd->convert_src == TRIG_EXT || cmd->scan_begin_src == TRIG_EXT) |
1232 | bits |= PACER_EXT_RISE; | |
1233 | else | |
1234 | bits |= PACER_INT; | |
1235 | outw(bits, devpriv->control_status + ADCMUX_CONT); | |
1236 | ||
1237 | #ifdef CB_PCIDAS_DEBUG | |
5f74ea14 | 1238 | printk("comedi: sent 0x%x to adcmux control\n", bits); |
59c7dd3d IM |
1239 | #endif |
1240 | ||
cf530aa4 | 1241 | /* load counters */ |
59c7dd3d IM |
1242 | if (cmd->convert_src == TRIG_TIMER) |
1243 | cb_pcidas_load_counters(dev, &cmd->convert_arg, | |
0a85b6f0 | 1244 | cmd->flags & TRIG_ROUND_MASK); |
59c7dd3d IM |
1245 | else if (cmd->scan_begin_src == TRIG_TIMER) |
1246 | cb_pcidas_load_counters(dev, &cmd->scan_begin_arg, | |
0a85b6f0 | 1247 | cmd->flags & TRIG_ROUND_MASK); |
59c7dd3d | 1248 | |
cf530aa4 | 1249 | /* set number of conversions */ |
2d238b29 | 1250 | if (cmd->stop_src == TRIG_COUNT) |
59c7dd3d | 1251 | devpriv->count = cmd->chanlist_len * cmd->stop_arg; |
cf530aa4 | 1252 | /* enable interrupts */ |
5f74ea14 | 1253 | spin_lock_irqsave(&dev->spinlock, flags); |
59c7dd3d IM |
1254 | devpriv->adc_fifo_bits |= INTE; |
1255 | devpriv->adc_fifo_bits &= ~INT_MASK; | |
1256 | if (cmd->flags & TRIG_WAKE_EOS) { | |
1257 | if (cmd->convert_src == TRIG_NOW && cmd->chanlist_len > 1) | |
cf530aa4 | 1258 | devpriv->adc_fifo_bits |= INT_EOS; /* interrupt end of burst */ |
59c7dd3d | 1259 | else |
cf530aa4 | 1260 | devpriv->adc_fifo_bits |= INT_FNE; /* interrupt fifo not empty */ |
59c7dd3d | 1261 | } else { |
cf530aa4 | 1262 | devpriv->adc_fifo_bits |= INT_FHF; /* interrupt fifo half full */ |
59c7dd3d IM |
1263 | } |
1264 | #ifdef CB_PCIDAS_DEBUG | |
5f74ea14 | 1265 | printk("comedi: adc_fifo_bits are 0x%x\n", devpriv->adc_fifo_bits); |
59c7dd3d | 1266 | #endif |
cf530aa4 | 1267 | /* enable (and clear) interrupts */ |
59c7dd3d | 1268 | outw(devpriv->adc_fifo_bits | EOAI | INT | LADFUL, |
0a85b6f0 | 1269 | devpriv->control_status + INT_ADCFIFO); |
5f74ea14 | 1270 | spin_unlock_irqrestore(&dev->spinlock, flags); |
59c7dd3d | 1271 | |
cf530aa4 | 1272 | /* set start trigger and burst mode */ |
59c7dd3d IM |
1273 | bits = 0; |
1274 | if (cmd->start_src == TRIG_NOW) | |
1275 | bits |= SW_TRIGGER; | |
1276 | else if (cmd->start_src == TRIG_EXT) | |
1277 | bits |= EXT_TRIGGER | TGEN | XTRCL; | |
1278 | else { | |
1279 | comedi_error(dev, "bug!"); | |
1280 | return -1; | |
1281 | } | |
1282 | if (cmd->convert_src == TRIG_NOW && cmd->chanlist_len > 1) | |
1283 | bits |= BURSTE; | |
1284 | outw(bits, devpriv->control_status + TRIG_CONTSTAT); | |
1285 | #ifdef CB_PCIDAS_DEBUG | |
5f74ea14 | 1286 | printk("comedi: sent 0x%x to trig control\n", bits); |
59c7dd3d IM |
1287 | #endif |
1288 | ||
1289 | return 0; | |
1290 | } | |
1291 | ||
0a85b6f0 MT |
1292 | static int cb_pcidas_ao_cmdtest(struct comedi_device *dev, |
1293 | struct comedi_subdevice *s, | |
1294 | struct comedi_cmd *cmd) | |
59c7dd3d IM |
1295 | { |
1296 | int err = 0; | |
1297 | int tmp; | |
1298 | ||
1299 | /* cmdtest tests a particular command to see if it is valid. | |
1300 | * Using the cmdtest ioctl, a user can create a valid cmd | |
1301 | * and then have it executes by the cmd ioctl. | |
1302 | * | |
1303 | * cmdtest returns 1,2,3,4 or 0, depending on which tests | |
1304 | * the command passes. */ | |
1305 | ||
1306 | /* step 1: make sure trigger sources are trivially valid */ | |
1307 | ||
1308 | tmp = cmd->start_src; | |
1309 | cmd->start_src &= TRIG_INT; | |
1310 | if (!cmd->start_src || tmp != cmd->start_src) | |
1311 | err++; | |
1312 | ||
1313 | tmp = cmd->scan_begin_src; | |
1314 | cmd->scan_begin_src &= TRIG_TIMER | TRIG_EXT; | |
1315 | if (!cmd->scan_begin_src || tmp != cmd->scan_begin_src) | |
1316 | err++; | |
1317 | ||
1318 | tmp = cmd->convert_src; | |
1319 | cmd->convert_src &= TRIG_NOW; | |
1320 | if (!cmd->convert_src || tmp != cmd->convert_src) | |
1321 | err++; | |
1322 | ||
1323 | tmp = cmd->scan_end_src; | |
1324 | cmd->scan_end_src &= TRIG_COUNT; | |
1325 | if (!cmd->scan_end_src || tmp != cmd->scan_end_src) | |
1326 | err++; | |
1327 | ||
1328 | tmp = cmd->stop_src; | |
1329 | cmd->stop_src &= TRIG_COUNT | TRIG_NONE; | |
1330 | if (!cmd->stop_src || tmp != cmd->stop_src) | |
1331 | err++; | |
1332 | ||
1333 | if (err) | |
1334 | return 1; | |
1335 | ||
1336 | /* step 2: make sure trigger sources are unique and mutually compatible */ | |
1337 | ||
1338 | if (cmd->scan_begin_src != TRIG_TIMER && | |
0a85b6f0 | 1339 | cmd->scan_begin_src != TRIG_EXT) |
59c7dd3d IM |
1340 | err++; |
1341 | if (cmd->stop_src != TRIG_COUNT && cmd->stop_src != TRIG_NONE) | |
1342 | err++; | |
1343 | ||
1344 | if (err) | |
1345 | return 2; | |
1346 | ||
1347 | /* step 3: make sure arguments are trivially compatible */ | |
1348 | ||
1349 | if (cmd->start_arg != 0) { | |
1350 | cmd->start_arg = 0; | |
1351 | err++; | |
1352 | } | |
1353 | ||
1354 | if (cmd->scan_begin_src == TRIG_TIMER) { | |
1355 | if (cmd->scan_begin_arg < thisboard->ao_scan_speed) { | |
1356 | cmd->scan_begin_arg = thisboard->ao_scan_speed; | |
1357 | err++; | |
1358 | } | |
1359 | } | |
1360 | ||
1361 | if (cmd->scan_end_arg != cmd->chanlist_len) { | |
1362 | cmd->scan_end_arg = cmd->chanlist_len; | |
1363 | err++; | |
1364 | } | |
1365 | if (cmd->stop_src == TRIG_NONE) { | |
1366 | /* TRIG_NONE */ | |
1367 | if (cmd->stop_arg != 0) { | |
1368 | cmd->stop_arg = 0; | |
1369 | err++; | |
1370 | } | |
1371 | } | |
1372 | ||
1373 | if (err) | |
1374 | return 3; | |
1375 | ||
1376 | /* step 4: fix up any arguments */ | |
1377 | ||
1378 | if (cmd->scan_begin_src == TRIG_TIMER) { | |
1379 | tmp = cmd->scan_begin_arg; | |
1380 | i8253_cascade_ns_to_timer_2div(TIMER_BASE, | |
0a85b6f0 MT |
1381 | &(devpriv->ao_divisor1), |
1382 | &(devpriv->ao_divisor2), | |
1383 | &(cmd->scan_begin_arg), | |
1384 | cmd->flags & TRIG_ROUND_MASK); | |
59c7dd3d IM |
1385 | if (tmp != cmd->scan_begin_arg) |
1386 | err++; | |
1387 | } | |
1388 | ||
1389 | if (err) | |
1390 | return 4; | |
1391 | ||
cf530aa4 | 1392 | /* check channel/gain list against card's limitations */ |
59c7dd3d IM |
1393 | if (cmd->chanlist && cmd->chanlist_len > 1) { |
1394 | if (CR_CHAN(cmd->chanlist[0]) != 0 || | |
0a85b6f0 | 1395 | CR_CHAN(cmd->chanlist[1]) != 1) { |
59c7dd3d | 1396 | comedi_error(dev, |
0a85b6f0 | 1397 | "channels must be ordered channel 0, channel 1 in chanlist\n"); |
59c7dd3d IM |
1398 | err++; |
1399 | } | |
1400 | } | |
1401 | ||
1402 | if (err) | |
1403 | return 5; | |
1404 | ||
1405 | return 0; | |
1406 | } | |
1407 | ||
0a85b6f0 MT |
1408 | static int cb_pcidas_ao_cmd(struct comedi_device *dev, |
1409 | struct comedi_subdevice *s) | |
59c7dd3d | 1410 | { |
d163679c | 1411 | struct comedi_async *async = s->async; |
ea6d0d4c | 1412 | struct comedi_cmd *cmd = &async->cmd; |
59c7dd3d IM |
1413 | unsigned int i; |
1414 | unsigned long flags; | |
1415 | ||
cf530aa4 | 1416 | /* set channel limits, gain */ |
5f74ea14 | 1417 | spin_lock_irqsave(&dev->spinlock, flags); |
59c7dd3d | 1418 | for (i = 0; i < cmd->chanlist_len; i++) { |
cf530aa4 | 1419 | /* enable channel */ |
59c7dd3d | 1420 | devpriv->ao_control_bits |= |
0a85b6f0 | 1421 | DAC_CHAN_EN(CR_CHAN(cmd->chanlist[i])); |
cf530aa4 | 1422 | /* set range */ |
59c7dd3d | 1423 | devpriv->ao_control_bits |= DAC_RANGE(CR_CHAN(cmd->chanlist[i]), |
0a85b6f0 MT |
1424 | CR_RANGE(cmd-> |
1425 | chanlist[i])); | |
59c7dd3d IM |
1426 | } |
1427 | ||
cf530aa4 | 1428 | /* disable analog out before settings pacer source and count values */ |
59c7dd3d | 1429 | outw(devpriv->ao_control_bits, devpriv->control_status + DAC_CSR); |
5f74ea14 | 1430 | spin_unlock_irqrestore(&dev->spinlock, flags); |
59c7dd3d | 1431 | |
cf530aa4 | 1432 | /* clear fifo */ |
59c7dd3d IM |
1433 | outw(0, devpriv->ao_registers + DACFIFOCLR); |
1434 | ||
cf530aa4 | 1435 | /* load counters */ |
59c7dd3d IM |
1436 | if (cmd->scan_begin_src == TRIG_TIMER) { |
1437 | i8253_cascade_ns_to_timer_2div(TIMER_BASE, | |
0a85b6f0 MT |
1438 | &(devpriv->ao_divisor1), |
1439 | &(devpriv->ao_divisor2), | |
1440 | &(cmd->scan_begin_arg), | |
1441 | cmd->flags); | |
59c7dd3d IM |
1442 | |
1443 | /* Write the values of ctr1 and ctr2 into counters 1 and 2 */ | |
1444 | i8254_load(devpriv->pacer_counter_dio + DAC8254, 0, 1, | |
0a85b6f0 | 1445 | devpriv->ao_divisor1, 2); |
59c7dd3d | 1446 | i8254_load(devpriv->pacer_counter_dio + DAC8254, 0, 2, |
0a85b6f0 | 1447 | devpriv->ao_divisor2, 2); |
59c7dd3d | 1448 | } |
cf530aa4 | 1449 | /* set number of conversions */ |
2d238b29 | 1450 | if (cmd->stop_src == TRIG_COUNT) |
59c7dd3d | 1451 | devpriv->ao_count = cmd->chanlist_len * cmd->stop_arg; |
cf530aa4 | 1452 | /* set pacer source */ |
5f74ea14 | 1453 | spin_lock_irqsave(&dev->spinlock, flags); |
59c7dd3d IM |
1454 | switch (cmd->scan_begin_src) { |
1455 | case TRIG_TIMER: | |
1456 | devpriv->ao_control_bits |= DAC_PACER_INT; | |
1457 | break; | |
1458 | case TRIG_EXT: | |
1459 | devpriv->ao_control_bits |= DAC_PACER_EXT_RISE; | |
1460 | break; | |
1461 | default: | |
5f74ea14 | 1462 | spin_unlock_irqrestore(&dev->spinlock, flags); |
59c7dd3d IM |
1463 | comedi_error(dev, "error setting dac pacer source"); |
1464 | return -1; | |
1465 | break; | |
1466 | } | |
5f74ea14 | 1467 | spin_unlock_irqrestore(&dev->spinlock, flags); |
59c7dd3d IM |
1468 | |
1469 | async->inttrig = cb_pcidas_ao_inttrig; | |
1470 | ||
1471 | return 0; | |
1472 | } | |
1473 | ||
d163679c BP |
1474 | static int cb_pcidas_ao_inttrig(struct comedi_device *dev, |
1475 | struct comedi_subdevice *s, | |
1476 | unsigned int trig_num) | |
59c7dd3d IM |
1477 | { |
1478 | unsigned int num_bytes, num_points = thisboard->fifo_size; | |
d163679c | 1479 | struct comedi_async *async = s->async; |
ea6d0d4c | 1480 | struct comedi_cmd *cmd = &s->async->cmd; |
59c7dd3d IM |
1481 | unsigned long flags; |
1482 | ||
1483 | if (trig_num != 0) | |
1484 | return -EINVAL; | |
1485 | ||
cf530aa4 | 1486 | /* load up fifo */ |
59c7dd3d IM |
1487 | if (cmd->stop_src == TRIG_COUNT && devpriv->ao_count < num_points) |
1488 | num_points = devpriv->ao_count; | |
1489 | ||
1490 | num_bytes = cfc_read_array_from_buffer(s, devpriv->ao_buffer, | |
0a85b6f0 | 1491 | num_points * sizeof(short)); |
790c5541 | 1492 | num_points = num_bytes / sizeof(short); |
59c7dd3d | 1493 | |
2d238b29 | 1494 | if (cmd->stop_src == TRIG_COUNT) |
59c7dd3d | 1495 | devpriv->ao_count -= num_points; |
cf530aa4 | 1496 | /* write data to board's fifo */ |
59c7dd3d IM |
1497 | outsw(devpriv->ao_registers + DACDATA, devpriv->ao_buffer, num_bytes); |
1498 | ||
cf530aa4 | 1499 | /* enable dac half-full and empty interrupts */ |
5f74ea14 | 1500 | spin_lock_irqsave(&dev->spinlock, flags); |
59c7dd3d IM |
1501 | devpriv->adc_fifo_bits |= DAEMIE | DAHFIE; |
1502 | #ifdef CB_PCIDAS_DEBUG | |
5f74ea14 | 1503 | printk("comedi: adc_fifo_bits are 0x%x\n", devpriv->adc_fifo_bits); |
59c7dd3d | 1504 | #endif |
cf530aa4 | 1505 | /* enable and clear interrupts */ |
59c7dd3d | 1506 | outw(devpriv->adc_fifo_bits | DAEMI | DAHFI, |
0a85b6f0 | 1507 | devpriv->control_status + INT_ADCFIFO); |
59c7dd3d | 1508 | |
cf530aa4 | 1509 | /* start dac */ |
59c7dd3d IM |
1510 | devpriv->ao_control_bits |= DAC_START | DACEN | DAC_EMPTY; |
1511 | outw(devpriv->ao_control_bits, devpriv->control_status + DAC_CSR); | |
1512 | #ifdef CB_PCIDAS_DEBUG | |
0a85b6f0 | 1513 | printk("comedi: sent 0x%x to dac control\n", devpriv->ao_control_bits); |
59c7dd3d | 1514 | #endif |
5f74ea14 | 1515 | spin_unlock_irqrestore(&dev->spinlock, flags); |
59c7dd3d IM |
1516 | |
1517 | async->inttrig = NULL; | |
1518 | ||
1519 | return 0; | |
1520 | } | |
1521 | ||
70265d24 | 1522 | static irqreturn_t cb_pcidas_interrupt(int irq, void *d) |
59c7dd3d | 1523 | { |
0a85b6f0 | 1524 | struct comedi_device *dev = (struct comedi_device *)d; |
34c43922 | 1525 | struct comedi_subdevice *s = dev->read_subdev; |
d163679c | 1526 | struct comedi_async *async; |
59c7dd3d IM |
1527 | int status, s5933_status; |
1528 | int half_fifo = thisboard->fifo_size / 2; | |
1529 | unsigned int num_samples, i; | |
1530 | static const int timeout = 10000; | |
1531 | unsigned long flags; | |
1532 | ||
2d238b29 | 1533 | if (dev->attached == 0) |
59c7dd3d | 1534 | return IRQ_NONE; |
59c7dd3d IM |
1535 | |
1536 | async = s->async; | |
1537 | async->events = 0; | |
1538 | ||
1539 | s5933_status = inl(devpriv->s5933_config + AMCC_OP_REG_INTCSR); | |
1540 | #ifdef CB_PCIDAS_DEBUG | |
5f74ea14 GKH |
1541 | printk("intcsr 0x%x\n", s5933_status); |
1542 | printk("mbef 0x%x\n", inl(devpriv->s5933_config + AMCC_OP_REG_MBEF)); | |
59c7dd3d IM |
1543 | #endif |
1544 | ||
1545 | if ((INTCSR_INTR_ASSERTED & s5933_status) == 0) | |
1546 | return IRQ_NONE; | |
1547 | ||
cf530aa4 | 1548 | /* make sure mailbox 4 is empty */ |
59c7dd3d | 1549 | inl_p(devpriv->s5933_config + AMCC_OP_REG_IMB4); |
cf530aa4 | 1550 | /* clear interrupt on amcc s5933 */ |
59c7dd3d | 1551 | outl(devpriv->s5933_intcsr_bits | INTCSR_INBOX_INTR_STATUS, |
0a85b6f0 | 1552 | devpriv->s5933_config + AMCC_OP_REG_INTCSR); |
59c7dd3d IM |
1553 | |
1554 | status = inw(devpriv->control_status + INT_ADCFIFO); | |
1555 | #ifdef CB_PCIDAS_DEBUG | |
2d238b29 | 1556 | if ((status & (INT | EOAI | LADFUL | DAHFI | DAEMI)) == 0) |
59c7dd3d | 1557 | comedi_error(dev, "spurious interrupt"); |
59c7dd3d IM |
1558 | #endif |
1559 | ||
cf530aa4 | 1560 | /* check for analog output interrupt */ |
2d238b29 | 1561 | if (status & (DAHFI | DAEMI)) |
59c7dd3d | 1562 | handle_ao_interrupt(dev, status); |
cf530aa4 BP |
1563 | /* check for analog input interrupts */ |
1564 | /* if fifo half-full */ | |
59c7dd3d | 1565 | if (status & ADHFI) { |
cf530aa4 | 1566 | /* read data */ |
59c7dd3d IM |
1567 | num_samples = half_fifo; |
1568 | if (async->cmd.stop_src == TRIG_COUNT && | |
0a85b6f0 | 1569 | num_samples > devpriv->count) { |
59c7dd3d IM |
1570 | num_samples = devpriv->count; |
1571 | } | |
1572 | insw(devpriv->adc_fifo + ADCDATA, devpriv->ai_buffer, | |
0a85b6f0 | 1573 | num_samples); |
59c7dd3d | 1574 | cfc_write_array_to_buffer(s, devpriv->ai_buffer, |
0a85b6f0 | 1575 | num_samples * sizeof(short)); |
59c7dd3d IM |
1576 | devpriv->count -= num_samples; |
1577 | if (async->cmd.stop_src == TRIG_COUNT && devpriv->count == 0) { | |
1578 | async->events |= COMEDI_CB_EOA; | |
1579 | cb_pcidas_cancel(dev, s); | |
1580 | } | |
cf530aa4 | 1581 | /* clear half-full interrupt latch */ |
5f74ea14 | 1582 | spin_lock_irqsave(&dev->spinlock, flags); |
59c7dd3d | 1583 | outw(devpriv->adc_fifo_bits | INT, |
0a85b6f0 | 1584 | devpriv->control_status + INT_ADCFIFO); |
5f74ea14 | 1585 | spin_unlock_irqrestore(&dev->spinlock, flags); |
cf530aa4 | 1586 | /* else if fifo not empty */ |
59c7dd3d IM |
1587 | } else if (status & (ADNEI | EOBI)) { |
1588 | for (i = 0; i < timeout; i++) { | |
cf530aa4 | 1589 | /* break if fifo is empty */ |
59c7dd3d | 1590 | if ((ADNE & inw(devpriv->control_status + |
0a85b6f0 | 1591 | INT_ADCFIFO)) == 0) |
59c7dd3d IM |
1592 | break; |
1593 | cfc_write_to_buffer(s, inw(devpriv->adc_fifo)); | |
1594 | if (async->cmd.stop_src == TRIG_COUNT && --devpriv->count == 0) { /* end of acquisition */ | |
1595 | cb_pcidas_cancel(dev, s); | |
1596 | async->events |= COMEDI_CB_EOA; | |
1597 | break; | |
1598 | } | |
1599 | } | |
cf530aa4 | 1600 | /* clear not-empty interrupt latch */ |
5f74ea14 | 1601 | spin_lock_irqsave(&dev->spinlock, flags); |
59c7dd3d | 1602 | outw(devpriv->adc_fifo_bits | INT, |
0a85b6f0 | 1603 | devpriv->control_status + INT_ADCFIFO); |
5f74ea14 | 1604 | spin_unlock_irqrestore(&dev->spinlock, flags); |
59c7dd3d IM |
1605 | } else if (status & EOAI) { |
1606 | comedi_error(dev, | |
0a85b6f0 | 1607 | "bug! encountered end of aquisition interrupt?"); |
cf530aa4 | 1608 | /* clear EOA interrupt latch */ |
5f74ea14 | 1609 | spin_lock_irqsave(&dev->spinlock, flags); |
59c7dd3d | 1610 | outw(devpriv->adc_fifo_bits | EOAI, |
0a85b6f0 | 1611 | devpriv->control_status + INT_ADCFIFO); |
5f74ea14 | 1612 | spin_unlock_irqrestore(&dev->spinlock, flags); |
59c7dd3d | 1613 | } |
cf530aa4 | 1614 | /* check for fifo overflow */ |
59c7dd3d IM |
1615 | if (status & LADFUL) { |
1616 | comedi_error(dev, "fifo overflow"); | |
cf530aa4 | 1617 | /* clear overflow interrupt latch */ |
5f74ea14 | 1618 | spin_lock_irqsave(&dev->spinlock, flags); |
59c7dd3d | 1619 | outw(devpriv->adc_fifo_bits | LADFUL, |
0a85b6f0 | 1620 | devpriv->control_status + INT_ADCFIFO); |
5f74ea14 | 1621 | spin_unlock_irqrestore(&dev->spinlock, flags); |
59c7dd3d IM |
1622 | cb_pcidas_cancel(dev, s); |
1623 | async->events |= COMEDI_CB_EOA | COMEDI_CB_ERROR; | |
1624 | } | |
1625 | ||
1626 | comedi_event(dev, s); | |
1627 | ||
1628 | return IRQ_HANDLED; | |
1629 | } | |
1630 | ||
da91b269 | 1631 | static void handle_ao_interrupt(struct comedi_device *dev, unsigned int status) |
59c7dd3d | 1632 | { |
34c43922 | 1633 | struct comedi_subdevice *s = dev->write_subdev; |
d163679c | 1634 | struct comedi_async *async = s->async; |
ea6d0d4c | 1635 | struct comedi_cmd *cmd = &async->cmd; |
59c7dd3d IM |
1636 | unsigned int half_fifo = thisboard->fifo_size / 2; |
1637 | unsigned int num_points; | |
3a5e32dd | 1638 | unsigned long flags; |
59c7dd3d IM |
1639 | |
1640 | async->events = 0; | |
1641 | ||
1642 | if (status & DAEMI) { | |
cf530aa4 | 1643 | /* clear dac empty interrupt latch */ |
5f74ea14 | 1644 | spin_lock_irqsave(&dev->spinlock, flags); |
59c7dd3d | 1645 | outw(devpriv->adc_fifo_bits | DAEMI, |
0a85b6f0 | 1646 | devpriv->control_status + INT_ADCFIFO); |
5f74ea14 | 1647 | spin_unlock_irqrestore(&dev->spinlock, flags); |
59c7dd3d IM |
1648 | if (inw(devpriv->ao_registers + DAC_CSR) & DAC_EMPTY) { |
1649 | if (cmd->stop_src == TRIG_NONE || | |
0a85b6f0 MT |
1650 | (cmd->stop_src == TRIG_COUNT |
1651 | && devpriv->ao_count)) { | |
59c7dd3d IM |
1652 | comedi_error(dev, "dac fifo underflow"); |
1653 | cb_pcidas_ao_cancel(dev, s); | |
1654 | async->events |= COMEDI_CB_ERROR; | |
1655 | } | |
1656 | async->events |= COMEDI_CB_EOA; | |
1657 | } | |
1658 | } else if (status & DAHFI) { | |
1659 | unsigned int num_bytes; | |
1660 | ||
cf530aa4 | 1661 | /* figure out how many points we are writing to fifo */ |
59c7dd3d IM |
1662 | num_points = half_fifo; |
1663 | if (cmd->stop_src == TRIG_COUNT && | |
0a85b6f0 | 1664 | devpriv->ao_count < num_points) |
59c7dd3d IM |
1665 | num_points = devpriv->ao_count; |
1666 | num_bytes = | |
0a85b6f0 MT |
1667 | cfc_read_array_from_buffer(s, devpriv->ao_buffer, |
1668 | num_points * sizeof(short)); | |
790c5541 | 1669 | num_points = num_bytes / sizeof(short); |
59c7dd3d | 1670 | |
2d238b29 | 1671 | if (async->cmd.stop_src == TRIG_COUNT) |
59c7dd3d | 1672 | devpriv->ao_count -= num_points; |
cf530aa4 | 1673 | /* write data to board's fifo */ |
59c7dd3d | 1674 | outsw(devpriv->ao_registers + DACDATA, devpriv->ao_buffer, |
0a85b6f0 | 1675 | num_points); |
cf530aa4 | 1676 | /* clear half-full interrupt latch */ |
5f74ea14 | 1677 | spin_lock_irqsave(&dev->spinlock, flags); |
59c7dd3d | 1678 | outw(devpriv->adc_fifo_bits | DAHFI, |
0a85b6f0 | 1679 | devpriv->control_status + INT_ADCFIFO); |
5f74ea14 | 1680 | spin_unlock_irqrestore(&dev->spinlock, flags); |
59c7dd3d IM |
1681 | } |
1682 | ||
1683 | comedi_event(dev, s); | |
1684 | } | |
1685 | ||
d163679c | 1686 | /* cancel analog input command */ |
0a85b6f0 MT |
1687 | static int cb_pcidas_cancel(struct comedi_device *dev, |
1688 | struct comedi_subdevice *s) | |
59c7dd3d IM |
1689 | { |
1690 | unsigned long flags; | |
1691 | ||
5f74ea14 | 1692 | spin_lock_irqsave(&dev->spinlock, flags); |
cf530aa4 | 1693 | /* disable interrupts */ |
59c7dd3d IM |
1694 | devpriv->adc_fifo_bits &= ~INTE & ~EOAIE; |
1695 | outw(devpriv->adc_fifo_bits, devpriv->control_status + INT_ADCFIFO); | |
5f74ea14 | 1696 | spin_unlock_irqrestore(&dev->spinlock, flags); |
59c7dd3d | 1697 | |
cf530aa4 | 1698 | /* disable start trigger source and burst mode */ |
59c7dd3d | 1699 | outw(0, devpriv->control_status + TRIG_CONTSTAT); |
cf530aa4 | 1700 | /* software pacer source */ |
59c7dd3d IM |
1701 | outw(0, devpriv->control_status + ADCMUX_CONT); |
1702 | ||
1703 | return 0; | |
1704 | } | |
1705 | ||
d163679c BP |
1706 | /* cancel analog output command */ |
1707 | static int cb_pcidas_ao_cancel(struct comedi_device *dev, | |
1708 | struct comedi_subdevice *s) | |
59c7dd3d IM |
1709 | { |
1710 | unsigned long flags; | |
1711 | ||
5f74ea14 | 1712 | spin_lock_irqsave(&dev->spinlock, flags); |
cf530aa4 | 1713 | /* disable interrupts */ |
59c7dd3d IM |
1714 | devpriv->adc_fifo_bits &= ~DAHFIE & ~DAEMIE; |
1715 | outw(devpriv->adc_fifo_bits, devpriv->control_status + INT_ADCFIFO); | |
1716 | ||
cf530aa4 | 1717 | /* disable output */ |
59c7dd3d IM |
1718 | devpriv->ao_control_bits &= ~DACEN & ~DAC_PACER_MASK; |
1719 | outw(devpriv->ao_control_bits, devpriv->control_status + DAC_CSR); | |
5f74ea14 | 1720 | spin_unlock_irqrestore(&dev->spinlock, flags); |
59c7dd3d IM |
1721 | |
1722 | return 0; | |
1723 | } | |
1724 | ||
da91b269 | 1725 | static void cb_pcidas_load_counters(struct comedi_device *dev, unsigned int *ns, |
0a85b6f0 | 1726 | int rounding_flags) |
59c7dd3d IM |
1727 | { |
1728 | i8253_cascade_ns_to_timer_2div(TIMER_BASE, &(devpriv->divisor1), | |
0a85b6f0 MT |
1729 | &(devpriv->divisor2), ns, |
1730 | rounding_flags & TRIG_ROUND_MASK); | |
59c7dd3d IM |
1731 | |
1732 | /* Write the values of ctr1 and ctr2 into counters 1 and 2 */ | |
1733 | i8254_load(devpriv->pacer_counter_dio + ADC8254, 0, 1, | |
0a85b6f0 | 1734 | devpriv->divisor1, 2); |
59c7dd3d | 1735 | i8254_load(devpriv->pacer_counter_dio + ADC8254, 0, 2, |
0a85b6f0 | 1736 | devpriv->divisor2, 2); |
59c7dd3d IM |
1737 | } |
1738 | ||
da91b269 | 1739 | static void write_calibration_bitstream(struct comedi_device *dev, |
0a85b6f0 MT |
1740 | unsigned int register_bits, |
1741 | unsigned int bitstream, | |
1742 | unsigned int bitstream_length) | |
59c7dd3d IM |
1743 | { |
1744 | static const int write_delay = 1; | |
1745 | unsigned int bit; | |
1746 | ||
1747 | for (bit = 1 << (bitstream_length - 1); bit; bit >>= 1) { | |
1748 | if (bitstream & bit) | |
1749 | register_bits |= SERIAL_DATA_IN_BIT; | |
1750 | else | |
1751 | register_bits &= ~SERIAL_DATA_IN_BIT; | |
5f74ea14 | 1752 | udelay(write_delay); |
59c7dd3d IM |
1753 | outw(register_bits, devpriv->control_status + CALIBRATION_REG); |
1754 | } | |
1755 | } | |
1756 | ||
da91b269 | 1757 | static int caldac_8800_write(struct comedi_device *dev, unsigned int address, |
0a85b6f0 | 1758 | uint8_t value) |
59c7dd3d IM |
1759 | { |
1760 | static const int num_caldac_channels = 8; | |
1761 | static const int bitstream_length = 11; | |
1762 | unsigned int bitstream = ((address & 0x7) << 8) | value; | |
5f74ea14 | 1763 | static const int caldac_8800_udelay = 1; |
59c7dd3d IM |
1764 | |
1765 | if (address >= num_caldac_channels) { | |
1766 | comedi_error(dev, "illegal caldac channel"); | |
1767 | return -1; | |
1768 | } | |
1769 | ||
1770 | if (value == devpriv->caldac_value[address]) | |
1771 | return 1; | |
1772 | ||
1773 | devpriv->caldac_value[address] = value; | |
1774 | ||
1775 | write_calibration_bitstream(dev, cal_enable_bits(dev), bitstream, | |
0a85b6f0 | 1776 | bitstream_length); |
59c7dd3d | 1777 | |
5f74ea14 | 1778 | udelay(caldac_8800_udelay); |
59c7dd3d | 1779 | outw(cal_enable_bits(dev) | SELECT_8800_BIT, |
0a85b6f0 | 1780 | devpriv->control_status + CALIBRATION_REG); |
5f74ea14 | 1781 | udelay(caldac_8800_udelay); |
59c7dd3d IM |
1782 | outw(cal_enable_bits(dev), devpriv->control_status + CALIBRATION_REG); |
1783 | ||
1784 | return 1; | |
1785 | } | |
1786 | ||
da91b269 | 1787 | static int trimpot_7376_write(struct comedi_device *dev, uint8_t value) |
59c7dd3d IM |
1788 | { |
1789 | static const int bitstream_length = 7; | |
1790 | unsigned int bitstream = value & 0x7f; | |
1791 | unsigned int register_bits; | |
5f74ea14 | 1792 | static const int ad7376_udelay = 1; |
59c7dd3d IM |
1793 | |
1794 | register_bits = cal_enable_bits(dev) | SELECT_TRIMPOT_BIT; | |
5f74ea14 | 1795 | udelay(ad7376_udelay); |
59c7dd3d IM |
1796 | outw(register_bits, devpriv->control_status + CALIBRATION_REG); |
1797 | ||
1798 | write_calibration_bitstream(dev, register_bits, bitstream, | |
0a85b6f0 | 1799 | bitstream_length); |
59c7dd3d | 1800 | |
5f74ea14 | 1801 | udelay(ad7376_udelay); |
59c7dd3d IM |
1802 | outw(cal_enable_bits(dev), devpriv->control_status + CALIBRATION_REG); |
1803 | ||
1804 | return 0; | |
1805 | } | |
1806 | ||
1807 | /* For 1602/16 only | |
1808 | * ch 0 : adc gain | |
1809 | * ch 1 : adc postgain offset */ | |
da91b269 | 1810 | static int trimpot_8402_write(struct comedi_device *dev, unsigned int channel, |
0a85b6f0 | 1811 | uint8_t value) |
59c7dd3d IM |
1812 | { |
1813 | static const int bitstream_length = 10; | |
1814 | unsigned int bitstream = ((channel & 0x3) << 8) | (value & 0xff); | |
1815 | unsigned int register_bits; | |
5f74ea14 | 1816 | static const int ad8402_udelay = 1; |
59c7dd3d IM |
1817 | |
1818 | register_bits = cal_enable_bits(dev) | SELECT_TRIMPOT_BIT; | |
5f74ea14 | 1819 | udelay(ad8402_udelay); |
59c7dd3d IM |
1820 | outw(register_bits, devpriv->control_status + CALIBRATION_REG); |
1821 | ||
1822 | write_calibration_bitstream(dev, register_bits, bitstream, | |
0a85b6f0 | 1823 | bitstream_length); |
59c7dd3d | 1824 | |
5f74ea14 | 1825 | udelay(ad8402_udelay); |
59c7dd3d IM |
1826 | outw(cal_enable_bits(dev), devpriv->control_status + CALIBRATION_REG); |
1827 | ||
1828 | return 0; | |
1829 | } | |
1830 | ||
1831 | static int wait_for_nvram_ready(unsigned long s5933_base_addr) | |
1832 | { | |
1833 | static const int timeout = 1000; | |
1834 | unsigned int i; | |
1835 | ||
1836 | for (i = 0; i < timeout; i++) { | |
1837 | if ((inb(s5933_base_addr + | |
0a85b6f0 MT |
1838 | AMCC_OP_REG_MCSR_NVCMD) & MCSR_NV_BUSY) |
1839 | == 0) | |
59c7dd3d | 1840 | return 0; |
5f74ea14 | 1841 | udelay(1); |
59c7dd3d IM |
1842 | } |
1843 | return -1; | |
1844 | } | |
1845 | ||
0a85b6f0 | 1846 | static int nvram_read(struct comedi_device *dev, unsigned int address, |
2d238b29 | 1847 | uint8_t *data) |
59c7dd3d IM |
1848 | { |
1849 | unsigned long iobase = devpriv->s5933_config; | |
1850 | ||
1851 | if (wait_for_nvram_ready(iobase) < 0) | |
1852 | return -ETIMEDOUT; | |
1853 | ||
1854 | outb(MCSR_NV_ENABLE | MCSR_NV_LOAD_LOW_ADDR, | |
0a85b6f0 | 1855 | iobase + AMCC_OP_REG_MCSR_NVCMD); |
59c7dd3d IM |
1856 | outb(address & 0xff, iobase + AMCC_OP_REG_MCSR_NVDATA); |
1857 | outb(MCSR_NV_ENABLE | MCSR_NV_LOAD_HIGH_ADDR, | |
0a85b6f0 | 1858 | iobase + AMCC_OP_REG_MCSR_NVCMD); |
59c7dd3d IM |
1859 | outb((address >> 8) & 0xff, iobase + AMCC_OP_REG_MCSR_NVDATA); |
1860 | outb(MCSR_NV_ENABLE | MCSR_NV_READ, iobase + AMCC_OP_REG_MCSR_NVCMD); | |
1861 | ||
1862 | if (wait_for_nvram_ready(iobase) < 0) | |
1863 | return -ETIMEDOUT; | |
1864 | ||
1865 | *data = inb(iobase + AMCC_OP_REG_MCSR_NVDATA); | |
1866 | ||
1867 | return 0; | |
1868 | } | |
1869 | ||
1870 | /* | |
1871 | * A convenient macro that defines init_module() and cleanup_module(), | |
1872 | * as necessary. | |
1873 | */ | |
1874 | COMEDI_PCI_INITCLEANUP(driver_cb_pcidas, cb_pcidas_pci_table); | |
90f703d3 AT |
1875 | |
1876 | MODULE_AUTHOR("Comedi http://www.comedi.org"); | |
1877 | MODULE_DESCRIPTION("Comedi low-level driver"); | |
1878 | MODULE_LICENSE("GPL"); |