Commit | Line | Data |
---|---|---|
4da6a1d8 MD |
1 | /* |
2 | comedi/drivers/pcl818.c | |
3 | ||
4 | Author: Michal Dobes <dobes@tesnet.cz> | |
5 | ||
6 | hardware driver for Advantech cards: | |
7 | card: PCL-818L, PCL-818H, PCL-818HD, PCL-818HG, PCL-818, PCL-718 | |
8 | driver: pcl818l, pcl818h, pcl818hd, pcl818hg, pcl818, pcl718 | |
9 | */ | |
10 | /* | |
11 | Driver: pcl818 | |
12 | Description: Advantech PCL-818 cards, PCL-718 | |
13 | Author: Michal Dobes <dobes@tesnet.cz> | |
14 | Devices: [Advantech] PCL-818L (pcl818l), PCL-818H (pcl818h), | |
15 | PCL-818HD (pcl818hd), PCL-818HG (pcl818hg), PCL-818 (pcl818), | |
16 | PCL-718 (pcl718) | |
17 | Status: works | |
18 | ||
19 | All cards have 16 SE/8 DIFF ADCs, one or two DACs, 16 DI and 16 DO. | |
20 | Differences are only at maximal sample speed, range list and FIFO | |
21 | support. | |
22 | The driver support AI mode 0, 1, 3 other subdevices (AO, DI, DO) support | |
23 | only mode 0. If DMA/FIFO/INT are disabled then AI support only mode 0. | |
24 | PCL-818HD and PCL-818HG support 1kword FIFO. Driver support this FIFO | |
25 | but this code is untested. | |
26 | A word or two about DMA. Driver support DMA operations at two ways: | |
27 | 1) DMA uses two buffers and after one is filled then is generated | |
28 | INT and DMA restart with second buffer. With this mode I'm unable run | |
29 | more that 80Ksamples/secs without data dropouts on K6/233. | |
30 | 2) DMA uses one buffer and run in autoinit mode and the data are | |
31 | from DMA buffer moved on the fly with 2kHz interrupts from RTC. | |
32 | This mode is used if the interrupt 8 is available for allocation. | |
33 | If not, then first DMA mode is used. With this I can run at | |
34 | full speed one card (100ksamples/secs) or two cards with | |
35 | 60ksamples/secs each (more is problem on account of ISA limitations). | |
36 | To use this mode you must have compiled kernel with disabled | |
37 | "Enhanced Real Time Clock Support". | |
38 | Maybe you can have problems if you use xntpd or similar. | |
39 | If you've data dropouts with DMA mode 2 then: | |
40 | a) disable IDE DMA | |
41 | b) switch text mode console to fb. | |
42 | ||
43 | Options for PCL-818L: | |
44 | [0] - IO Base | |
45 | [1] - IRQ (0=disable, 2, 3, 4, 5, 6, 7) | |
46 | [2] - DMA (0=disable, 1, 3) | |
47 | [3] - 0, 10=10MHz clock for 8254 | |
48 | 1= 1MHz clock for 8254 | |
49 | [4] - 0, 5=A/D input -5V.. +5V | |
50 | 1, 10=A/D input -10V..+10V | |
51 | [5] - 0, 5=D/A output 0-5V (internal reference -5V) | |
52 | 1, 10=D/A output 0-10V (internal reference -10V) | |
bbc9a991 | 53 | 2 =D/A output unknown (external reference) |
4da6a1d8 MD |
54 | |
55 | Options for PCL-818, PCL-818H: | |
56 | [0] - IO Base | |
57 | [1] - IRQ (0=disable, 2, 3, 4, 5, 6, 7) | |
58 | [2] - DMA (0=disable, 1, 3) | |
59 | [3] - 0, 10=10MHz clock for 8254 | |
60 | 1= 1MHz clock for 8254 | |
61 | [4] - 0, 5=D/A output 0-5V (internal reference -5V) | |
62 | 1, 10=D/A output 0-10V (internal reference -10V) | |
bbc9a991 | 63 | 2 =D/A output unknown (external reference) |
4da6a1d8 MD |
64 | |
65 | Options for PCL-818HD, PCL-818HG: | |
66 | [0] - IO Base | |
67 | [1] - IRQ (0=disable, 2, 3, 4, 5, 6, 7) | |
68 | [2] - DMA/FIFO (-1=use FIFO, 0=disable both FIFO and DMA, | |
69 | 1=use DMA ch 1, 3=use DMA ch 3) | |
70 | [3] - 0, 10=10MHz clock for 8254 | |
71 | 1= 1MHz clock for 8254 | |
72 | [4] - 0, 5=D/A output 0-5V (internal reference -5V) | |
73 | 1, 10=D/A output 0-10V (internal reference -10V) | |
bbc9a991 | 74 | 2 =D/A output unknown (external reference) |
4da6a1d8 MD |
75 | |
76 | Options for PCL-718: | |
77 | [0] - IO Base | |
78 | [1] - IRQ (0=disable, 2, 3, 4, 5, 6, 7) | |
79 | [2] - DMA (0=disable, 1, 3) | |
80 | [3] - 0, 10=10MHz clock for 8254 | |
81 | 1= 1MHz clock for 8254 | |
82 | [4] - 0=A/D Range is +/-10V | |
83 | 1= +/-5V | |
84 | 2= +/-2.5V | |
85 | 3= +/-1V | |
86 | 4= +/-0.5V | |
87 | 5= user defined bipolar | |
88 | 6= 0-10V | |
89 | 7= 0-5V | |
90 | 8= 0-2V | |
91 | 9= 0-1V | |
92 | 10= user defined unipolar | |
93 | [5] - 0, 5=D/A outputs 0-5V (internal reference -5V) | |
94 | 1, 10=D/A outputs 0-10V (internal reference -10V) | |
bbc9a991 | 95 | 2=D/A outputs unknown (external reference) |
4da6a1d8 MD |
96 | [6] - 0, 60=max 60kHz A/D sampling |
97 | 1,100=max 100kHz A/D sampling (PCL-718 with Option 001 installed) | |
98 | ||
99 | */ | |
100 | ||
101 | #include "../comedidev.h" | |
102 | ||
103 | #include <linux/ioport.h> | |
104 | #include <linux/mc146818rtc.h> | |
5a0e3ad6 | 105 | #include <linux/gfp.h> |
4da6a1d8 | 106 | #include <linux/delay.h> |
845d131e | 107 | #include <linux/io.h> |
4da6a1d8 MD |
108 | #include <asm/dma.h> |
109 | ||
110 | #include "8253.h" | |
111 | ||
0109253d | 112 | /* #define PCL818_MODE13_AO 1 */ |
4da6a1d8 | 113 | |
0109253d | 114 | /* boards constants */ |
4da6a1d8 MD |
115 | |
116 | #define boardPCL818L 0 | |
117 | #define boardPCL818H 1 | |
118 | #define boardPCL818HD 2 | |
119 | #define boardPCL818HG 3 | |
120 | #define boardPCL818 4 | |
121 | #define boardPCL718 5 | |
122 | ||
0109253d | 123 | /* IO space len */ |
4da6a1d8 | 124 | #define PCLx1x_RANGE 16 |
0109253d | 125 | /* IO space len if we use FIFO */ |
4da6a1d8 MD |
126 | #define PCLx1xFIFO_RANGE 32 |
127 | ||
0109253d | 128 | /* W: clear INT request */ |
4da6a1d8 | 129 | #define PCL818_CLRINT 8 |
0109253d | 130 | /* R: return status byte */ |
4da6a1d8 | 131 | #define PCL818_STATUS 8 |
0109253d | 132 | /* R: A/D high byte W: A/D range control */ |
4da6a1d8 | 133 | #define PCL818_RANGE 1 |
0109253d | 134 | /* R: next mux scan channel W: mux scan channel & range control pointer */ |
4da6a1d8 | 135 | #define PCL818_MUX 2 |
0109253d | 136 | /* R/W: operation control register */ |
4da6a1d8 | 137 | #define PCL818_CONTROL 9 |
0109253d | 138 | /* W: counter enable */ |
4da6a1d8 MD |
139 | #define PCL818_CNTENABLE 10 |
140 | ||
0109253d | 141 | /* R: low byte of A/D W: soft A/D trigger */ |
4da6a1d8 | 142 | #define PCL818_AD_LO 0 |
0109253d | 143 | /* R: high byte of A/D W: A/D range control */ |
4da6a1d8 | 144 | #define PCL818_AD_HI 1 |
0109253d | 145 | /* W: D/A low&high byte */ |
4da6a1d8 MD |
146 | #define PCL818_DA_LO 4 |
147 | #define PCL818_DA_HI 5 | |
0109253d | 148 | /* R: low&high byte of DI */ |
4da6a1d8 MD |
149 | #define PCL818_DI_LO 3 |
150 | #define PCL818_DI_HI 11 | |
0109253d | 151 | /* W: low&high byte of DO */ |
4da6a1d8 MD |
152 | #define PCL818_DO_LO 3 |
153 | #define PCL818_DO_HI 11 | |
0109253d | 154 | /* W: PCL718 second D/A */ |
4da6a1d8 MD |
155 | #define PCL718_DA2_LO 6 |
156 | #define PCL718_DA2_HI 7 | |
0109253d | 157 | /* counters */ |
4da6a1d8 MD |
158 | #define PCL818_CTR0 12 |
159 | #define PCL818_CTR1 13 | |
160 | #define PCL818_CTR2 14 | |
0109253d | 161 | /* W: counter control */ |
4da6a1d8 MD |
162 | #define PCL818_CTRCTL 15 |
163 | ||
0109253d | 164 | /* W: fifo enable/disable */ |
4da6a1d8 | 165 | #define PCL818_FI_ENABLE 6 |
0109253d | 166 | /* W: fifo interrupt clear */ |
4da6a1d8 | 167 | #define PCL818_FI_INTCLR 20 |
0109253d | 168 | /* W: fifo interrupt clear */ |
4da6a1d8 | 169 | #define PCL818_FI_FLUSH 25 |
0109253d | 170 | /* R: fifo status */ |
4da6a1d8 | 171 | #define PCL818_FI_STATUS 25 |
0109253d | 172 | /* R: one record from FIFO */ |
4da6a1d8 MD |
173 | #define PCL818_FI_DATALO 23 |
174 | #define PCL818_FI_DATAHI 23 | |
175 | ||
0109253d | 176 | /* type of interrupt handler */ |
4da6a1d8 MD |
177 | #define INT_TYPE_AI1_INT 1 |
178 | #define INT_TYPE_AI1_DMA 2 | |
179 | #define INT_TYPE_AI1_FIFO 3 | |
180 | #define INT_TYPE_AI3_INT 4 | |
181 | #define INT_TYPE_AI3_DMA 5 | |
182 | #define INT_TYPE_AI3_FIFO 6 | |
183 | #ifdef PCL818_MODE13_AO | |
184 | #define INT_TYPE_AO1_INT 7 | |
185 | #define INT_TYPE_AO3_INT 8 | |
186 | #endif | |
187 | ||
188 | #ifdef unused | |
0109253d | 189 | /* RTC stuff... */ |
4da6a1d8 MD |
190 | #define INT_TYPE_AI1_DMA_RTC 9 |
191 | #define INT_TYPE_AI3_DMA_RTC 10 | |
192 | ||
193 | #define RTC_IRQ 8 | |
194 | #define RTC_IO_EXTENT 0x10 | |
195 | #endif | |
196 | ||
197 | #define MAGIC_DMA_WORD 0x5a5a | |
198 | ||
9ced1de6 | 199 | static const struct comedi_lrange range_pcl818h_ai = { 9, { |
0a85b6f0 MT |
200 | BIP_RANGE(5), |
201 | BIP_RANGE(2.5), | |
202 | BIP_RANGE(1.25), | |
203 | BIP_RANGE(0.625), | |
204 | UNI_RANGE(10), | |
205 | UNI_RANGE(5), | |
206 | UNI_RANGE(2.5), | |
207 | UNI_RANGE(1.25), | |
208 | BIP_RANGE(10), | |
209 | } | |
4da6a1d8 MD |
210 | }; |
211 | ||
9ced1de6 | 212 | static const struct comedi_lrange range_pcl818hg_ai = { 10, { |
0a85b6f0 MT |
213 | BIP_RANGE(5), |
214 | BIP_RANGE(0.5), | |
215 | BIP_RANGE(0.05), | |
216 | BIP_RANGE(0.005), | |
217 | UNI_RANGE(10), | |
218 | UNI_RANGE(1), | |
219 | UNI_RANGE(0.1), | |
220 | UNI_RANGE(0.01), | |
221 | BIP_RANGE(10), | |
222 | BIP_RANGE(1), | |
223 | BIP_RANGE(0.1), | |
224 | BIP_RANGE(0.01), | |
225 | } | |
4da6a1d8 MD |
226 | }; |
227 | ||
9ced1de6 | 228 | static const struct comedi_lrange range_pcl818l_l_ai = { 4, { |
0a85b6f0 MT |
229 | BIP_RANGE(5), |
230 | BIP_RANGE(2.5), | |
231 | BIP_RANGE(1.25), | |
232 | BIP_RANGE(0.625), | |
233 | } | |
4da6a1d8 MD |
234 | }; |
235 | ||
9ced1de6 | 236 | static const struct comedi_lrange range_pcl818l_h_ai = { 4, { |
0a85b6f0 MT |
237 | BIP_RANGE(10), |
238 | BIP_RANGE(5), | |
239 | BIP_RANGE(2.5), | |
240 | BIP_RANGE(1.25), | |
241 | } | |
4da6a1d8 MD |
242 | }; |
243 | ||
9ced1de6 | 244 | static const struct comedi_lrange range718_bipolar1 = { 1, {BIP_RANGE(1),} }; |
0a85b6f0 MT |
245 | static const struct comedi_lrange range718_bipolar0_5 = |
246 | { 1, {BIP_RANGE(0.5),} }; | |
9ced1de6 BP |
247 | static const struct comedi_lrange range718_unipolar2 = { 1, {UNI_RANGE(2),} }; |
248 | static const struct comedi_lrange range718_unipolar1 = { 1, {BIP_RANGE(1),} }; | |
4da6a1d8 | 249 | |
4da6a1d8 | 250 | #ifdef unused |
2b873134 RM |
251 | static int RTC_lock; /* RTC lock */ |
252 | static int RTC_timer_lock; /* RTC int lock */ | |
4da6a1d8 MD |
253 | #endif |
254 | ||
4634b815 BP |
255 | struct pcl818_board { |
256 | ||
0109253d BP |
257 | const char *name; /* driver name */ |
258 | int n_ranges; /* len of range list */ | |
259 | int n_aichan_se; /* num of A/D chans in single ended mode */ | |
260 | int n_aichan_diff; /* num of A/D chans in diferencial mode */ | |
39eaedb6 | 261 | unsigned int ns_min; /* minimal allowed delay between samples (in ns) */ |
0109253d BP |
262 | int n_aochan; /* num of D/A chans */ |
263 | int n_dichan; /* num of DI chans */ | |
264 | int n_dochan; /* num of DO chans */ | |
265 | const struct comedi_lrange *ai_range_type; /* default A/D rangelist */ | |
266 | const struct comedi_lrange *ao_range_type; /* default D/A rangelist */ | |
267 | unsigned int io_range; /* len of IO space */ | |
268 | unsigned int IRQbits; /* allowed interrupts */ | |
269 | unsigned int DMAbits; /* allowed DMA chans */ | |
270 | int ai_maxdata; /* maxdata for A/D */ | |
271 | int ao_maxdata; /* maxdata for D/A */ | |
272 | unsigned char fifo; /* 1=board has FIFO */ | |
4da6a1d8 | 273 | int is_818; |
4634b815 BP |
274 | }; |
275 | ||
087ea31b BP |
276 | struct pcl818_private { |
277 | ||
0109253d BP |
278 | unsigned int dma; /* used DMA, 0=don't use DMA */ |
279 | int dma_rtc; /* 1=RTC used with DMA, 0=no RTC alloc */ | |
4da6a1d8 MD |
280 | unsigned int io_range; |
281 | #ifdef unused | |
0109253d | 282 | unsigned long rtc_iobase; /* RTC port region */ |
4da6a1d8 MD |
283 | unsigned int rtc_iosize; |
284 | unsigned int rtc_irq; | |
0109253d BP |
285 | struct timer_list rtc_irq_timer; /* timer for RTC sanity check */ |
286 | unsigned long rtc_freq; /* RTC int freq */ | |
287 | int rtc_irq_blocked; /* 1=we now do AI with DMA&RTC */ | |
4da6a1d8 | 288 | #endif |
0109253d BP |
289 | unsigned long dmabuf[2]; /* pointers to begin of DMA buffers */ |
290 | unsigned int dmapages[2]; /* len of DMA buffers in PAGE_SIZEs */ | |
291 | unsigned int hwdmaptr[2]; /* hardware address of DMA buffers */ | |
292 | unsigned int hwdmasize[2]; /* len of DMA buffers in Bytes */ | |
293 | unsigned int dmasamplsize; /* size in samples hwdmasize[0]/2 */ | |
294 | unsigned int last_top_dma; /* DMA pointer in last RTC int */ | |
295 | int next_dma_buf; /* which DMA buffer will be used next round */ | |
296 | long dma_runs_to_end; /* how many we must permorm DMA transfer to end of record */ | |
297 | unsigned long last_dma_run; /* how many bytes we must transfer on last DMA page */ | |
298 | unsigned char neverending_ai; /* if=1, then we do neverending record (you must use cancel()) */ | |
39eaedb6 | 299 | unsigned int ns_min; /* manimal allowed delay between samples (in us) for actual card */ |
0109253d BP |
300 | int i8253_osc_base; /* 1/frequency of on board oscilator in ns */ |
301 | int irq_free; /* 1=have allocated IRQ */ | |
302 | int irq_blocked; /* 1=IRQ now uses any subdev */ | |
303 | int irq_was_now_closed; /* when IRQ finish, there's stored int818_mode for last interrupt */ | |
304 | int ai_mode; /* who now uses IRQ - 1=AI1 int, 2=AI1 dma, 3=AI3 int, 4AI3 dma */ | |
305 | struct comedi_subdevice *last_int_sub; /* ptr to subdevice which now finish */ | |
306 | int ai_act_scan; /* how many scans we finished */ | |
307 | int ai_act_chan; /* actual position in actual scan */ | |
308 | unsigned int act_chanlist[16]; /* MUX setting for actual AI operations */ | |
309 | unsigned int act_chanlist_len; /* how long is actual MUX list */ | |
310 | unsigned int act_chanlist_pos; /* actual position in MUX list */ | |
311 | unsigned int ai_scans; /* len of scanlist */ | |
312 | unsigned int ai_n_chan; /* how many channels is measured */ | |
313 | unsigned int *ai_chanlist; /* actaul chanlist */ | |
314 | unsigned int ai_flags; /* flaglist */ | |
315 | unsigned int ai_data_len; /* len of data buffer */ | |
0a85b6f0 | 316 | short *ai_data; /* data buffer */ |
0109253d | 317 | unsigned int ai_timer1; /* timers */ |
4da6a1d8 | 318 | unsigned int ai_timer2; |
0109253d BP |
319 | struct comedi_subdevice *sub_ai; /* ptr to AI subdevice */ |
320 | unsigned char usefifo; /* 1=use fifo */ | |
790c5541 | 321 | unsigned int ao_readback[2]; |
087ea31b BP |
322 | }; |
323 | ||
0109253d | 324 | static const unsigned int muxonechan[] = { 0x00, 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77, /* used for gain list programming */ |
4da6a1d8 MD |
325 | 0x88, 0x99, 0xaa, 0xbb, 0xcc, 0xdd, 0xee, 0xff |
326 | }; | |
327 | ||
087ea31b | 328 | #define devpriv ((struct pcl818_private *)dev->private) |
4634b815 | 329 | #define this_board ((const struct pcl818_board *)dev->board_ptr) |
4da6a1d8 MD |
330 | |
331 | /* | |
332 | ============================================================================== | |
333 | */ | |
0a85b6f0 MT |
334 | static void setup_channel_list(struct comedi_device *dev, |
335 | struct comedi_subdevice *s, | |
336 | unsigned int *chanlist, unsigned int n_chan, | |
337 | unsigned int seglen); | |
338 | static int check_channel_list(struct comedi_device *dev, | |
339 | struct comedi_subdevice *s, | |
340 | unsigned int *chanlist, unsigned int n_chan); | |
341 | ||
342 | static int pcl818_ai_cancel(struct comedi_device *dev, | |
343 | struct comedi_subdevice *s); | |
344 | static void start_pacer(struct comedi_device *dev, int mode, | |
345 | unsigned int divisor1, unsigned int divisor2); | |
4da6a1d8 MD |
346 | |
347 | #ifdef unused | |
348 | static int set_rtc_irq_bit(unsigned char bit); | |
349 | static void rtc_dropped_irq(unsigned long data); | |
350 | static int rtc_setfreq_irq(int freq); | |
351 | #endif | |
352 | ||
353 | /* | |
354 | ============================================================================== | |
355 | ANALOG INPUT MODE0, 818 cards, slow version | |
356 | */ | |
0a85b6f0 MT |
357 | static int pcl818_ai_insn_read(struct comedi_device *dev, |
358 | struct comedi_subdevice *s, | |
359 | struct comedi_insn *insn, unsigned int *data) | |
4da6a1d8 MD |
360 | { |
361 | int n; | |
362 | int timeout; | |
363 | ||
364 | /* software trigger, DMA and INT off */ | |
365 | outb(0, dev->iobase + PCL818_CONTROL); | |
366 | ||
367 | /* select channel */ | |
368 | outb(muxonechan[CR_CHAN(insn->chanspec)], dev->iobase + PCL818_MUX); | |
369 | ||
370 | /* select gain */ | |
371 | outb(CR_RANGE(insn->chanspec), dev->iobase + PCL818_RANGE); | |
372 | ||
373 | for (n = 0; n < insn->n; n++) { | |
374 | ||
375 | /* clear INT (conversion end) flag */ | |
376 | outb(0, dev->iobase + PCL818_CLRINT); | |
377 | ||
378 | /* start conversion */ | |
379 | outb(0, dev->iobase + PCL818_AD_LO); | |
380 | ||
381 | timeout = 100; | |
382 | while (timeout--) { | |
383 | if (inb(dev->iobase + PCL818_STATUS) & 0x10) | |
384 | goto conv_finish; | |
5f74ea14 | 385 | udelay(1); |
4da6a1d8 MD |
386 | } |
387 | comedi_error(dev, "A/D insn timeout"); | |
388 | /* clear INT (conversion end) flag */ | |
389 | outb(0, dev->iobase + PCL818_CLRINT); | |
390 | return -EIO; | |
391 | ||
0a85b6f0 | 392 | conv_finish: |
4da6a1d8 | 393 | data[n] = ((inb(dev->iobase + PCL818_AD_HI) << 4) | |
0a85b6f0 | 394 | (inb(dev->iobase + PCL818_AD_LO) >> 4)); |
4da6a1d8 MD |
395 | } |
396 | ||
397 | return n; | |
398 | } | |
399 | ||
400 | /* | |
401 | ============================================================================== | |
402 | ANALOG OUTPUT MODE0, 818 cards | |
403 | only one sample per call is supported | |
404 | */ | |
0a85b6f0 MT |
405 | static int pcl818_ao_insn_read(struct comedi_device *dev, |
406 | struct comedi_subdevice *s, | |
407 | struct comedi_insn *insn, unsigned int *data) | |
4da6a1d8 MD |
408 | { |
409 | int n; | |
410 | int chan = CR_CHAN(insn->chanspec); | |
411 | ||
fc950139 | 412 | for (n = 0; n < insn->n; n++) |
4da6a1d8 | 413 | data[n] = devpriv->ao_readback[chan]; |
4da6a1d8 MD |
414 | |
415 | return n; | |
416 | } | |
417 | ||
0a85b6f0 MT |
418 | static int pcl818_ao_insn_write(struct comedi_device *dev, |
419 | struct comedi_subdevice *s, | |
420 | struct comedi_insn *insn, unsigned int *data) | |
4da6a1d8 MD |
421 | { |
422 | int n; | |
423 | int chan = CR_CHAN(insn->chanspec); | |
424 | ||
425 | for (n = 0; n < insn->n; n++) { | |
426 | devpriv->ao_readback[chan] = data[n]; | |
427 | outb((data[n] & 0x000f) << 4, dev->iobase + | |
0a85b6f0 | 428 | (chan ? PCL718_DA2_LO : PCL818_DA_LO)); |
4da6a1d8 | 429 | outb((data[n] & 0x0ff0) >> 4, dev->iobase + |
0a85b6f0 | 430 | (chan ? PCL718_DA2_HI : PCL818_DA_HI)); |
4da6a1d8 MD |
431 | } |
432 | ||
433 | return n; | |
434 | } | |
435 | ||
436 | /* | |
437 | ============================================================================== | |
438 | DIGITAL INPUT MODE0, 818 cards | |
439 | ||
440 | only one sample per call is supported | |
441 | */ | |
0a85b6f0 MT |
442 | static int pcl818_di_insn_bits(struct comedi_device *dev, |
443 | struct comedi_subdevice *s, | |
444 | struct comedi_insn *insn, unsigned int *data) | |
4da6a1d8 MD |
445 | { |
446 | if (insn->n != 2) | |
447 | return -EINVAL; | |
448 | ||
449 | data[1] = inb(dev->iobase + PCL818_DI_LO) | | |
0a85b6f0 | 450 | (inb(dev->iobase + PCL818_DI_HI) << 8); |
4da6a1d8 MD |
451 | |
452 | return 2; | |
453 | } | |
454 | ||
455 | /* | |
456 | ============================================================================== | |
457 | DIGITAL OUTPUT MODE0, 818 cards | |
458 | ||
459 | only one sample per call is supported | |
460 | */ | |
0a85b6f0 MT |
461 | static int pcl818_do_insn_bits(struct comedi_device *dev, |
462 | struct comedi_subdevice *s, | |
463 | struct comedi_insn *insn, unsigned int *data) | |
4da6a1d8 MD |
464 | { |
465 | if (insn->n != 2) | |
466 | return -EINVAL; | |
467 | ||
468 | s->state &= ~data[0]; | |
469 | s->state |= (data[0] & data[1]); | |
470 | ||
471 | outb(s->state & 0xff, dev->iobase + PCL818_DO_LO); | |
472 | outb((s->state >> 8), dev->iobase + PCL818_DO_HI); | |
473 | ||
474 | data[1] = s->state; | |
475 | ||
476 | return 2; | |
477 | } | |
478 | ||
479 | /* | |
480 | ============================================================================== | |
481 | analog input interrupt mode 1 & 3, 818 cards | |
482 | one sample per interrupt version | |
483 | */ | |
484 | static irqreturn_t interrupt_pcl818_ai_mode13_int(int irq, void *d) | |
485 | { | |
71b5f4f1 | 486 | struct comedi_device *dev = d; |
34c43922 | 487 | struct comedi_subdevice *s = dev->subdevices + 0; |
4da6a1d8 MD |
488 | int low; |
489 | int timeout = 50; /* wait max 50us */ | |
490 | ||
491 | while (timeout--) { | |
492 | if (inb(dev->iobase + PCL818_STATUS) & 0x10) | |
493 | goto conv_finish; | |
5f74ea14 | 494 | udelay(1); |
4da6a1d8 MD |
495 | } |
496 | outb(0, dev->iobase + PCL818_STATUS); /* clear INT request */ | |
497 | comedi_error(dev, "A/D mode1/3 IRQ without DRDY!"); | |
498 | pcl818_ai_cancel(dev, s); | |
499 | s->async->events |= COMEDI_CB_EOA | COMEDI_CB_ERROR; | |
500 | comedi_event(dev, s); | |
501 | return IRQ_HANDLED; | |
502 | ||
0a85b6f0 | 503 | conv_finish: |
4da6a1d8 | 504 | low = inb(dev->iobase + PCL818_AD_LO); |
0109253d | 505 | comedi_buf_put(s->async, ((inb(dev->iobase + PCL818_AD_HI) << 4) | (low >> 4))); /* get one sample */ |
4da6a1d8 MD |
506 | outb(0, dev->iobase + PCL818_CLRINT); /* clear INT request */ |
507 | ||
0109253d | 508 | if ((low & 0xf) != devpriv->act_chanlist[devpriv->act_chanlist_pos]) { /* dropout! */ |
5f74ea14 | 509 | printk |
0a85b6f0 MT |
510 | ("comedi: A/D mode1/3 IRQ - channel dropout %x!=%x !\n", |
511 | (low & 0xf), | |
512 | devpriv->act_chanlist[devpriv->act_chanlist_pos]); | |
4da6a1d8 MD |
513 | pcl818_ai_cancel(dev, s); |
514 | s->async->events |= COMEDI_CB_EOA | COMEDI_CB_ERROR; | |
515 | comedi_event(dev, s); | |
516 | return IRQ_HANDLED; | |
517 | } | |
b3559cb1 | 518 | devpriv->act_chanlist_pos++; |
fc950139 | 519 | if (devpriv->act_chanlist_pos >= devpriv->act_chanlist_len) |
b3559cb1 | 520 | devpriv->act_chanlist_pos = 0; |
fc950139 | 521 | |
b3559cb1 IA |
522 | s->async->cur_chan++; |
523 | if (s->async->cur_chan >= devpriv->ai_n_chan) { | |
5f74ea14 | 524 | /* printk("E"); */ |
b3559cb1 | 525 | s->async->cur_chan = 0; |
4da6a1d8 MD |
526 | devpriv->ai_act_scan--; |
527 | } | |
528 | ||
529 | if (!devpriv->neverending_ai) { | |
530 | if (devpriv->ai_act_scan == 0) { /* all data sampled */ | |
531 | pcl818_ai_cancel(dev, s); | |
532 | s->async->events |= COMEDI_CB_EOA; | |
533 | } | |
534 | } | |
535 | comedi_event(dev, s); | |
536 | return IRQ_HANDLED; | |
537 | } | |
538 | ||
539 | /* | |
540 | ============================================================================== | |
541 | analog input dma mode 1 & 3, 818 cards | |
542 | */ | |
543 | static irqreturn_t interrupt_pcl818_ai_mode13_dma(int irq, void *d) | |
544 | { | |
71b5f4f1 | 545 | struct comedi_device *dev = d; |
34c43922 | 546 | struct comedi_subdevice *s = dev->subdevices + 0; |
4da6a1d8 MD |
547 | int i, len, bufptr; |
548 | unsigned long flags; | |
790c5541 | 549 | short *ptr; |
4da6a1d8 MD |
550 | |
551 | disable_dma(devpriv->dma); | |
552 | devpriv->next_dma_buf = 1 - devpriv->next_dma_buf; | |
0109253d | 553 | if ((devpriv->dma_runs_to_end) > -1 || devpriv->neverending_ai) { /* switch dma bufs */ |
4da6a1d8 MD |
554 | set_dma_mode(devpriv->dma, DMA_MODE_READ); |
555 | flags = claim_dma_lock(); | |
556 | set_dma_addr(devpriv->dma, | |
0a85b6f0 | 557 | devpriv->hwdmaptr[devpriv->next_dma_buf]); |
4da6a1d8 MD |
558 | if (devpriv->dma_runs_to_end || devpriv->neverending_ai) { |
559 | set_dma_count(devpriv->dma, | |
0a85b6f0 MT |
560 | devpriv->hwdmasize[devpriv-> |
561 | next_dma_buf]); | |
4da6a1d8 MD |
562 | } else { |
563 | set_dma_count(devpriv->dma, devpriv->last_dma_run); | |
564 | } | |
565 | release_dma_lock(flags); | |
566 | enable_dma(devpriv->dma); | |
567 | } | |
5f74ea14 | 568 | printk("comedi: A/D mode1/3 IRQ \n"); |
4da6a1d8 MD |
569 | |
570 | devpriv->dma_runs_to_end--; | |
571 | outb(0, dev->iobase + PCL818_CLRINT); /* clear INT request */ | |
0a85b6f0 | 572 | ptr = (short *)devpriv->dmabuf[1 - devpriv->next_dma_buf]; |
4da6a1d8 MD |
573 | |
574 | len = devpriv->hwdmasize[0] >> 1; | |
575 | bufptr = 0; | |
576 | ||
577 | for (i = 0; i < len; i++) { | |
0109253d | 578 | if ((ptr[bufptr] & 0xf) != devpriv->act_chanlist[devpriv->act_chanlist_pos]) { /* dropout! */ |
5f74ea14 | 579 | printk |
0a85b6f0 MT |
580 | ("comedi: A/D mode1/3 DMA - channel dropout %d(card)!=%d(chanlist) at %d !\n", |
581 | (ptr[bufptr] & 0xf), | |
582 | devpriv->act_chanlist[devpriv->act_chanlist_pos], | |
583 | devpriv->act_chanlist_pos); | |
4da6a1d8 MD |
584 | pcl818_ai_cancel(dev, s); |
585 | s->async->events |= COMEDI_CB_EOA | COMEDI_CB_ERROR; | |
586 | comedi_event(dev, s); | |
587 | return IRQ_HANDLED; | |
588 | } | |
589 | ||
0109253d | 590 | comedi_buf_put(s->async, ptr[bufptr++] >> 4); /* get one sample */ |
4da6a1d8 MD |
591 | |
592 | devpriv->act_chanlist_pos++; | |
fc950139 | 593 | if (devpriv->act_chanlist_pos >= devpriv->act_chanlist_len) |
4da6a1d8 | 594 | devpriv->act_chanlist_pos = 0; |
fc950139 | 595 | |
b3559cb1 IA |
596 | s->async->cur_chan++; |
597 | if (s->async->cur_chan >= devpriv->ai_n_chan) { | |
598 | s->async->cur_chan = 0; | |
599 | devpriv->ai_act_scan--; | |
600 | } | |
4da6a1d8 MD |
601 | |
602 | if (!devpriv->neverending_ai) | |
603 | if (devpriv->ai_act_scan == 0) { /* all data sampled */ | |
604 | pcl818_ai_cancel(dev, s); | |
605 | s->async->events |= COMEDI_CB_EOA; | |
606 | comedi_event(dev, s); | |
0109253d | 607 | /* printk("done int ai13 dma\n"); */ |
4da6a1d8 MD |
608 | return IRQ_HANDLED; |
609 | } | |
610 | } | |
611 | ||
612 | if (len > 0) | |
613 | comedi_event(dev, s); | |
614 | return IRQ_HANDLED; | |
615 | } | |
616 | ||
617 | #ifdef unused | |
618 | /* | |
619 | ============================================================================== | |
620 | analog input dma mode 1 & 3 over RTC, 818 cards | |
621 | */ | |
622 | static irqreturn_t interrupt_pcl818_ai_mode13_dma_rtc(int irq, void *d) | |
623 | { | |
71b5f4f1 | 624 | struct comedi_device *dev = d; |
34c43922 | 625 | struct comedi_subdevice *s = dev->subdevices + 0; |
4da6a1d8 MD |
626 | unsigned long tmp; |
627 | unsigned int top1, top2, i, bufptr; | |
628 | long ofs_dats; | |
0a85b6f0 | 629 | short *dmabuf = (short *)devpriv->dmabuf[0]; |
4da6a1d8 | 630 | |
0109253d | 631 | /* outb(2,0x378); */ |
4da6a1d8 MD |
632 | switch (devpriv->ai_mode) { |
633 | case INT_TYPE_AI1_DMA_RTC: | |
634 | case INT_TYPE_AI3_DMA_RTC: | |
635 | tmp = (CMOS_READ(RTC_INTR_FLAGS) & 0xF0); | |
636 | mod_timer(&devpriv->rtc_irq_timer, | |
0a85b6f0 | 637 | jiffies + HZ / devpriv->rtc_freq + 2 * HZ / 100); |
4da6a1d8 MD |
638 | |
639 | for (i = 0; i < 10; i++) { | |
640 | top1 = get_dma_residue(devpriv->dma); | |
641 | top2 = get_dma_residue(devpriv->dma); | |
642 | if (top1 == top2) | |
643 | break; | |
644 | } | |
645 | ||
646 | if (top1 != top2) | |
647 | return IRQ_HANDLED; | |
0109253d | 648 | top1 = devpriv->hwdmasize[0] - top1; /* where is now DMA in buffer */ |
4da6a1d8 | 649 | top1 >>= 1; |
0109253d | 650 | ofs_dats = top1 - devpriv->last_top_dma; /* new samples from last call */ |
4da6a1d8 MD |
651 | if (ofs_dats < 0) |
652 | ofs_dats = (devpriv->dmasamplsize) + ofs_dats; | |
653 | if (!ofs_dats) | |
0109253d BP |
654 | return IRQ_HANDLED; /* exit=no new samples from last call */ |
655 | /* obsluz data */ | |
4da6a1d8 MD |
656 | i = devpriv->last_top_dma - 1; |
657 | i &= (devpriv->dmasamplsize - 1); | |
658 | ||
0109253d | 659 | if (dmabuf[i] != MAGIC_DMA_WORD) { /* DMA overflow! */ |
4da6a1d8 | 660 | comedi_error(dev, "A/D mode1/3 DMA buffer overflow!"); |
5f74ea14 | 661 | /* printk("I %d dmabuf[i] %d %d\n",i,dmabuf[i],devpriv->dmasamplsize); */ |
4da6a1d8 MD |
662 | pcl818_ai_cancel(dev, s); |
663 | s->async->events |= COMEDI_CB_EOA | COMEDI_CB_ERROR; | |
664 | comedi_event(dev, s); | |
665 | return IRQ_HANDLED; | |
666 | } | |
5f74ea14 | 667 | /* printk("r %ld ",ofs_dats); */ |
4da6a1d8 MD |
668 | |
669 | bufptr = devpriv->last_top_dma; | |
670 | ||
671 | for (i = 0; i < ofs_dats; i++) { | |
0109253d | 672 | if ((dmabuf[bufptr] & 0xf) != devpriv->act_chanlist[devpriv->act_chanlist_pos]) { /* dropout! */ |
5f74ea14 | 673 | printk |
0a85b6f0 MT |
674 | ("comedi: A/D mode1/3 DMA - channel dropout %d!=%d !\n", |
675 | (dmabuf[bufptr] & 0xf), | |
676 | devpriv-> | |
677 | act_chanlist[devpriv->act_chanlist_pos]); | |
4da6a1d8 MD |
678 | pcl818_ai_cancel(dev, s); |
679 | s->async->events |= | |
0a85b6f0 | 680 | COMEDI_CB_EOA | COMEDI_CB_ERROR; |
4da6a1d8 MD |
681 | comedi_event(dev, s); |
682 | return IRQ_HANDLED; | |
683 | } | |
684 | ||
0109253d | 685 | comedi_buf_put(s->async, dmabuf[bufptr++] >> 4); /* get one sample */ |
4da6a1d8 MD |
686 | bufptr &= (devpriv->dmasamplsize - 1); |
687 | ||
b3559cb1 IA |
688 | devpriv->act_chanlist_pos++; |
689 | if (devpriv->act_chanlist_pos >= | |
690 | devpriv->act_chanlist_len) { | |
691 | devpriv->act_chanlist_pos = 0; | |
692 | } | |
693 | s->async->cur_chan++; | |
694 | if (s->async->cur_chan >= devpriv->ai_n_chan) { | |
695 | s->async->cur_chan = 0; | |
4da6a1d8 MD |
696 | devpriv->ai_act_scan--; |
697 | } | |
698 | ||
699 | if (!devpriv->neverending_ai) | |
700 | if (devpriv->ai_act_scan == 0) { /* all data sampled */ | |
701 | pcl818_ai_cancel(dev, s); | |
702 | s->async->events |= COMEDI_CB_EOA; | |
703 | comedi_event(dev, s); | |
0109253d | 704 | /* printk("done int ai13 dma\n"); */ |
4da6a1d8 MD |
705 | return IRQ_HANDLED; |
706 | } | |
707 | } | |
708 | ||
709 | devpriv->last_top_dma = bufptr; | |
710 | bufptr--; | |
711 | bufptr &= (devpriv->dmasamplsize - 1); | |
712 | dmabuf[bufptr] = MAGIC_DMA_WORD; | |
713 | comedi_event(dev, s); | |
0109253d | 714 | /* outb(0,0x378); */ |
4da6a1d8 MD |
715 | return IRQ_HANDLED; |
716 | } | |
717 | ||
0109253d | 718 | /* outb(0,0x378); */ |
4da6a1d8 MD |
719 | return IRQ_HANDLED; |
720 | } | |
721 | #endif | |
722 | ||
723 | /* | |
724 | ============================================================================== | |
725 | analog input interrupt mode 1 & 3, 818HD/HG cards | |
726 | */ | |
727 | static irqreturn_t interrupt_pcl818_ai_mode13_fifo(int irq, void *d) | |
728 | { | |
71b5f4f1 | 729 | struct comedi_device *dev = d; |
34c43922 | 730 | struct comedi_subdevice *s = dev->subdevices + 0; |
4da6a1d8 MD |
731 | int i, len, lo; |
732 | ||
0109253d | 733 | outb(0, dev->iobase + PCL818_FI_INTCLR); /* clear fifo int request */ |
4da6a1d8 MD |
734 | |
735 | lo = inb(dev->iobase + PCL818_FI_STATUS); | |
736 | ||
737 | if (lo & 4) { | |
738 | comedi_error(dev, "A/D mode1/3 FIFO overflow!"); | |
739 | pcl818_ai_cancel(dev, s); | |
740 | s->async->events |= COMEDI_CB_EOA | COMEDI_CB_ERROR; | |
741 | comedi_event(dev, s); | |
742 | return IRQ_HANDLED; | |
743 | } | |
744 | ||
745 | if (lo & 1) { | |
746 | comedi_error(dev, "A/D mode1/3 FIFO interrupt without data!"); | |
747 | pcl818_ai_cancel(dev, s); | |
748 | s->async->events |= COMEDI_CB_EOA | COMEDI_CB_ERROR; | |
749 | comedi_event(dev, s); | |
750 | return IRQ_HANDLED; | |
751 | } | |
752 | ||
fc950139 | 753 | if (lo & 2) |
4da6a1d8 | 754 | len = 512; |
fc950139 | 755 | else |
4da6a1d8 | 756 | len = 0; |
4da6a1d8 MD |
757 | |
758 | for (i = 0; i < len; i++) { | |
759 | lo = inb(dev->iobase + PCL818_FI_DATALO); | |
0109253d | 760 | if ((lo & 0xf) != devpriv->act_chanlist[devpriv->act_chanlist_pos]) { /* dropout! */ |
5f74ea14 | 761 | printk |
0a85b6f0 MT |
762 | ("comedi: A/D mode1/3 FIFO - channel dropout %d!=%d !\n", |
763 | (lo & 0xf), | |
764 | devpriv->act_chanlist[devpriv->act_chanlist_pos]); | |
4da6a1d8 MD |
765 | pcl818_ai_cancel(dev, s); |
766 | s->async->events |= COMEDI_CB_EOA | COMEDI_CB_ERROR; | |
767 | comedi_event(dev, s); | |
768 | return IRQ_HANDLED; | |
769 | } | |
770 | ||
0109253d | 771 | comedi_buf_put(s->async, (lo >> 4) | (inb(dev->iobase + PCL818_FI_DATAHI) << 4)); /* get one sample */ |
4da6a1d8 | 772 | |
b3559cb1 | 773 | devpriv->act_chanlist_pos++; |
fc950139 | 774 | if (devpriv->act_chanlist_pos >= devpriv->act_chanlist_len) |
b3559cb1 | 775 | devpriv->act_chanlist_pos = 0; |
fc950139 | 776 | |
b3559cb1 IA |
777 | s->async->cur_chan++; |
778 | if (s->async->cur_chan >= devpriv->ai_n_chan) { | |
779 | s->async->cur_chan = 0; | |
4da6a1d8 MD |
780 | devpriv->ai_act_scan--; |
781 | } | |
782 | ||
783 | if (!devpriv->neverending_ai) | |
784 | if (devpriv->ai_act_scan == 0) { /* all data sampled */ | |
785 | pcl818_ai_cancel(dev, s); | |
786 | s->async->events |= COMEDI_CB_EOA; | |
787 | comedi_event(dev, s); | |
788 | return IRQ_HANDLED; | |
789 | } | |
790 | } | |
791 | ||
792 | if (len > 0) | |
793 | comedi_event(dev, s); | |
794 | return IRQ_HANDLED; | |
795 | } | |
796 | ||
797 | /* | |
798 | ============================================================================== | |
799 | INT procedure | |
800 | */ | |
70265d24 | 801 | static irqreturn_t interrupt_pcl818(int irq, void *d) |
4da6a1d8 | 802 | { |
71b5f4f1 | 803 | struct comedi_device *dev = d; |
4da6a1d8 MD |
804 | |
805 | if (!dev->attached) { | |
806 | comedi_error(dev, "premature interrupt"); | |
807 | return IRQ_HANDLED; | |
808 | } | |
5f74ea14 | 809 | /* printk("I\n"); */ |
4da6a1d8 | 810 | |
e21de1a8 IA |
811 | if (devpriv->irq_blocked && devpriv->irq_was_now_closed) { |
812 | if ((devpriv->neverending_ai || (!devpriv->neverending_ai && | |
0a85b6f0 MT |
813 | devpriv->ai_act_scan > 0)) && |
814 | (devpriv->ai_mode == INT_TYPE_AI1_DMA || | |
815 | devpriv->ai_mode == INT_TYPE_AI3_DMA)) { | |
e21de1a8 IA |
816 | /* The cleanup from ai_cancel() has been delayed |
817 | until now because the card doesn't seem to like | |
818 | being reprogrammed while a DMA transfer is in | |
819 | progress. | |
820 | */ | |
821 | struct comedi_subdevice *s = dev->subdevices + 0; | |
822 | devpriv->ai_act_scan = 0; | |
823 | devpriv->neverending_ai = 0; | |
824 | pcl818_ai_cancel(dev, s); | |
825 | } | |
826 | ||
827 | outb(0, dev->iobase + PCL818_CLRINT); /* clear INT request */ | |
828 | ||
829 | return IRQ_HANDLED; | |
830 | } | |
831 | ||
4da6a1d8 MD |
832 | switch (devpriv->ai_mode) { |
833 | case INT_TYPE_AI1_DMA: | |
834 | case INT_TYPE_AI3_DMA: | |
835 | return interrupt_pcl818_ai_mode13_dma(irq, d); | |
836 | case INT_TYPE_AI1_INT: | |
837 | case INT_TYPE_AI3_INT: | |
838 | return interrupt_pcl818_ai_mode13_int(irq, d); | |
839 | case INT_TYPE_AI1_FIFO: | |
840 | case INT_TYPE_AI3_FIFO: | |
841 | return interrupt_pcl818_ai_mode13_fifo(irq, d); | |
842 | #ifdef PCL818_MODE13_AO | |
843 | case INT_TYPE_AO1_INT: | |
844 | case INT_TYPE_AO3_INT: | |
845 | return interrupt_pcl818_ao_mode13_int(irq, d); | |
846 | #endif | |
847 | default: | |
848 | break; | |
849 | } | |
850 | ||
851 | outb(0, dev->iobase + PCL818_CLRINT); /* clear INT request */ | |
852 | ||
853 | if ((!dev->irq) || (!devpriv->irq_free) || (!devpriv->irq_blocked) | |
0a85b6f0 | 854 | || (!devpriv->ai_mode)) { |
4da6a1d8 MD |
855 | comedi_error(dev, "bad IRQ!"); |
856 | return IRQ_NONE; | |
857 | } | |
858 | ||
bbc9a991 | 859 | comedi_error(dev, "IRQ from unknown source!"); |
4da6a1d8 MD |
860 | return IRQ_NONE; |
861 | } | |
862 | ||
863 | /* | |
864 | ============================================================================== | |
865 | ANALOG INPUT MODE 1 or 3 DMA , 818 cards | |
866 | */ | |
da91b269 | 867 | static void pcl818_ai_mode13dma_int(int mode, struct comedi_device *dev, |
0a85b6f0 | 868 | struct comedi_subdevice *s) |
4da6a1d8 MD |
869 | { |
870 | unsigned int flags; | |
871 | unsigned int bytes; | |
872 | ||
5f74ea14 | 873 | printk("mode13dma_int, mode: %d\n", mode); |
0109253d | 874 | disable_dma(devpriv->dma); /* disable dma */ |
4da6a1d8 MD |
875 | bytes = devpriv->hwdmasize[0]; |
876 | if (!devpriv->neverending_ai) { | |
0109253d BP |
877 | bytes = devpriv->ai_n_chan * devpriv->ai_scans * sizeof(short); /* how many */ |
878 | devpriv->dma_runs_to_end = bytes / devpriv->hwdmasize[0]; /* how many DMA pages we must fiil */ | |
879 | devpriv->last_dma_run = bytes % devpriv->hwdmasize[0]; /* on last dma transfer must be moved */ | |
4da6a1d8 MD |
880 | devpriv->dma_runs_to_end--; |
881 | if (devpriv->dma_runs_to_end >= 0) | |
882 | bytes = devpriv->hwdmasize[0]; | |
883 | } | |
884 | ||
885 | devpriv->next_dma_buf = 0; | |
886 | set_dma_mode(devpriv->dma, DMA_MODE_READ); | |
887 | flags = claim_dma_lock(); | |
888 | clear_dma_ff(devpriv->dma); | |
889 | set_dma_addr(devpriv->dma, devpriv->hwdmaptr[0]); | |
890 | set_dma_count(devpriv->dma, bytes); | |
891 | release_dma_lock(flags); | |
892 | enable_dma(devpriv->dma); | |
893 | ||
894 | if (mode == 1) { | |
895 | devpriv->ai_mode = INT_TYPE_AI1_DMA; | |
896 | outb(0x87 | (dev->irq << 4), dev->iobase + PCL818_CONTROL); /* Pacer+IRQ+DMA */ | |
897 | } else { | |
898 | devpriv->ai_mode = INT_TYPE_AI3_DMA; | |
899 | outb(0x86 | (dev->irq << 4), dev->iobase + PCL818_CONTROL); /* Ext trig+IRQ+DMA */ | |
900 | }; | |
901 | } | |
902 | ||
903 | #ifdef unused | |
904 | /* | |
905 | ============================================================================== | |
906 | ANALOG INPUT MODE 1 or 3 DMA rtc, 818 cards | |
907 | */ | |
da91b269 | 908 | static void pcl818_ai_mode13dma_rtc(int mode, struct comedi_device *dev, |
0a85b6f0 | 909 | struct comedi_subdevice *s) |
4da6a1d8 MD |
910 | { |
911 | unsigned int flags; | |
790c5541 | 912 | short *pole; |
4da6a1d8 MD |
913 | |
914 | set_dma_mode(devpriv->dma, DMA_MODE_READ | DMA_AUTOINIT); | |
915 | flags = claim_dma_lock(); | |
916 | clear_dma_ff(devpriv->dma); | |
917 | set_dma_addr(devpriv->dma, devpriv->hwdmaptr[0]); | |
918 | set_dma_count(devpriv->dma, devpriv->hwdmasize[0]); | |
919 | release_dma_lock(flags); | |
920 | enable_dma(devpriv->dma); | |
0109253d | 921 | devpriv->last_top_dma = 0; /* devpriv->hwdmasize[0]; */ |
0a85b6f0 | 922 | pole = (short *)devpriv->dmabuf[0]; |
4da6a1d8 MD |
923 | devpriv->dmasamplsize = devpriv->hwdmasize[0] / 2; |
924 | pole[devpriv->dmasamplsize - 1] = MAGIC_DMA_WORD; | |
925 | #ifdef unused | |
926 | devpriv->rtc_freq = rtc_setfreq_irq(2048); | |
927 | devpriv->rtc_irq_timer.expires = | |
0a85b6f0 | 928 | jiffies + HZ / devpriv->rtc_freq + 2 * HZ / 100; |
4da6a1d8 MD |
929 | devpriv->rtc_irq_timer.data = (unsigned long)dev; |
930 | devpriv->rtc_irq_timer.function = rtc_dropped_irq; | |
931 | ||
932 | add_timer(&devpriv->rtc_irq_timer); | |
933 | #endif | |
934 | ||
935 | if (mode == 1) { | |
936 | devpriv->int818_mode = INT_TYPE_AI1_DMA_RTC; | |
937 | outb(0x07 | (dev->irq << 4), dev->iobase + PCL818_CONTROL); /* Pacer+DMA */ | |
938 | } else { | |
939 | devpriv->int818_mode = INT_TYPE_AI3_DMA_RTC; | |
940 | outb(0x06 | (dev->irq << 4), dev->iobase + PCL818_CONTROL); /* Ext trig+DMA */ | |
941 | }; | |
942 | } | |
943 | #endif | |
944 | ||
945 | /* | |
946 | ============================================================================== | |
947 | ANALOG INPUT MODE 1 or 3, 818 cards | |
948 | */ | |
da91b269 | 949 | static int pcl818_ai_cmd_mode(int mode, struct comedi_device *dev, |
0a85b6f0 | 950 | struct comedi_subdevice *s) |
4da6a1d8 | 951 | { |
ea6d0d4c | 952 | struct comedi_cmd *cmd = &s->async->cmd; |
48b1aff5 | 953 | int divisor1 = 0, divisor2 = 0; |
4da6a1d8 MD |
954 | unsigned int seglen; |
955 | ||
c62a0ef4 | 956 | dev_dbg(dev->hw_dev, "pcl818_ai_cmd_mode()\n"); |
4da6a1d8 MD |
957 | if ((!dev->irq) && (!devpriv->dma_rtc)) { |
958 | comedi_error(dev, "IRQ not defined!"); | |
959 | return -EINVAL; | |
960 | } | |
961 | ||
962 | if (devpriv->irq_blocked) | |
963 | return -EBUSY; | |
964 | ||
0109253d | 965 | start_pacer(dev, -1, 0, 0); /* stop pacer */ |
4da6a1d8 MD |
966 | |
967 | seglen = check_channel_list(dev, s, devpriv->ai_chanlist, | |
0a85b6f0 | 968 | devpriv->ai_n_chan); |
4da6a1d8 MD |
969 | if (seglen < 1) |
970 | return -EINVAL; | |
971 | setup_channel_list(dev, s, devpriv->ai_chanlist, | |
0a85b6f0 | 972 | devpriv->ai_n_chan, seglen); |
4da6a1d8 | 973 | |
5f74ea14 | 974 | udelay(1); |
4da6a1d8 MD |
975 | |
976 | devpriv->ai_act_scan = devpriv->ai_scans; | |
977 | devpriv->ai_act_chan = 0; | |
978 | devpriv->irq_blocked = 1; | |
979 | devpriv->irq_was_now_closed = 0; | |
980 | devpriv->neverending_ai = 0; | |
981 | devpriv->act_chanlist_pos = 0; | |
982 | devpriv->dma_runs_to_end = 0; | |
983 | ||
984 | if ((devpriv->ai_scans == 0) || (devpriv->ai_scans == -1)) | |
0109253d | 985 | devpriv->neverending_ai = 1; /* well, user want neverending */ |
4da6a1d8 MD |
986 | |
987 | if (mode == 1) { | |
988 | i8253_cascade_ns_to_timer(devpriv->i8253_osc_base, &divisor1, | |
0a85b6f0 MT |
989 | &divisor2, &cmd->convert_arg, |
990 | TRIG_ROUND_NEAREST); | |
4da6a1d8 MD |
991 | if (divisor1 == 1) { /* PCL718/818 crash if any divisor is set to 1 */ |
992 | divisor1 = 2; | |
993 | divisor2 /= 2; | |
994 | } | |
995 | if (divisor2 == 1) { | |
996 | divisor2 = 2; | |
997 | divisor1 /= 2; | |
998 | } | |
999 | } | |
1000 | ||
1001 | outb(0, dev->iobase + PCL818_CNTENABLE); /* enable pacer */ | |
1002 | ||
1003 | switch (devpriv->dma) { | |
0109253d | 1004 | case 1: /* DMA */ |
4da6a1d8 MD |
1005 | case 3: |
1006 | if (devpriv->dma_rtc == 0) { | |
1007 | pcl818_ai_mode13dma_int(mode, dev, s); | |
1008 | } | |
1009 | #ifdef unused | |
1010 | else { | |
1011 | pcl818_ai_mode13dma_rtc(mode, dev, s); | |
1012 | } | |
1013 | #else | |
1014 | else { | |
1015 | return -EINVAL; | |
1016 | } | |
1017 | #endif | |
1018 | break; | |
a71f18d2 IA |
1019 | case 0: |
1020 | if (!devpriv->usefifo) { | |
1021 | /* IRQ */ | |
5f74ea14 | 1022 | /* printk("IRQ\n"); */ |
a71f18d2 IA |
1023 | if (mode == 1) { |
1024 | devpriv->ai_mode = INT_TYPE_AI1_INT; | |
1025 | /* Pacer+IRQ */ | |
0a85b6f0 MT |
1026 | outb(0x83 | (dev->irq << 4), |
1027 | dev->iobase + PCL818_CONTROL); | |
a71f18d2 IA |
1028 | } else { |
1029 | devpriv->ai_mode = INT_TYPE_AI3_INT; | |
1030 | /* Ext trig+IRQ */ | |
0a85b6f0 MT |
1031 | outb(0x82 | (dev->irq << 4), |
1032 | dev->iobase + PCL818_CONTROL); | |
a71f18d2 | 1033 | } |
4da6a1d8 | 1034 | } else { |
a71f18d2 IA |
1035 | /* FIFO */ |
1036 | /* enable FIFO */ | |
1037 | outb(1, dev->iobase + PCL818_FI_ENABLE); | |
1038 | if (mode == 1) { | |
1039 | devpriv->ai_mode = INT_TYPE_AI1_FIFO; | |
1040 | /* Pacer */ | |
1041 | outb(0x03, dev->iobase + PCL818_CONTROL); | |
1042 | } else { | |
1043 | devpriv->ai_mode = INT_TYPE_AI3_FIFO; | |
1044 | outb(0x02, dev->iobase + PCL818_CONTROL); | |
1045 | } | |
1046 | } | |
4da6a1d8 MD |
1047 | } |
1048 | ||
1049 | start_pacer(dev, mode, divisor1, divisor2); | |
1050 | ||
1051 | #ifdef unused | |
1052 | switch (devpriv->ai_mode) { | |
1053 | case INT_TYPE_AI1_DMA_RTC: | |
1054 | case INT_TYPE_AI3_DMA_RTC: | |
1055 | set_rtc_irq_bit(1); /* start RTC */ | |
1056 | break; | |
1057 | } | |
1058 | #endif | |
c62a0ef4 | 1059 | dev_dbg(dev->hw_dev, "pcl818_ai_cmd_mode() end\n"); |
4da6a1d8 MD |
1060 | return 0; |
1061 | } | |
1062 | ||
1063 | #ifdef unused | |
1064 | /* | |
1065 | ============================================================================== | |
1066 | ANALOG OUTPUT MODE 1 or 3, 818 cards | |
1067 | */ | |
1068 | #ifdef PCL818_MODE13_AO | |
0a85b6f0 MT |
1069 | static int pcl818_ao_mode13(int mode, struct comedi_device *dev, |
1070 | struct comedi_subdevice *s, comedi_trig * it) | |
4da6a1d8 | 1071 | { |
48b1aff5 | 1072 | int divisor1 = 0, divisor2 = 0; |
4da6a1d8 MD |
1073 | |
1074 | if (!dev->irq) { | |
1075 | comedi_error(dev, "IRQ not defined!"); | |
1076 | return -EINVAL; | |
1077 | } | |
1078 | ||
1079 | if (devpriv->irq_blocked) | |
1080 | return -EBUSY; | |
1081 | ||
0109253d | 1082 | start_pacer(dev, -1, 0, 0); /* stop pacer */ |
4da6a1d8 MD |
1083 | |
1084 | devpriv->int13_act_scan = it->n; | |
1085 | devpriv->int13_act_chan = 0; | |
1086 | devpriv->irq_blocked = 1; | |
1087 | devpriv->irq_was_now_closed = 0; | |
1088 | devpriv->neverending_ai = 0; | |
1089 | devpriv->act_chanlist_pos = 0; | |
1090 | ||
1091 | if (mode == 1) { | |
1092 | i8253_cascade_ns_to_timer(devpriv->i8253_osc_base, &divisor1, | |
0a85b6f0 MT |
1093 | &divisor2, &it->trigvar, |
1094 | TRIG_ROUND_NEAREST); | |
4da6a1d8 MD |
1095 | if (divisor1 == 1) { /* PCL818 crash if any divisor is set to 1 */ |
1096 | divisor1 = 2; | |
1097 | divisor2 /= 2; | |
1098 | } | |
1099 | if (divisor2 == 1) { | |
1100 | divisor2 = 2; | |
1101 | divisor1 /= 2; | |
1102 | } | |
1103 | } | |
1104 | ||
1105 | outb(0, dev->iobase + PCL818_CNTENABLE); /* enable pacer */ | |
1106 | if (mode == 1) { | |
1107 | devpriv->int818_mode = INT_TYPE_AO1_INT; | |
1108 | outb(0x83 | (dev->irq << 4), dev->iobase + PCL818_CONTROL); /* Pacer+IRQ */ | |
1109 | } else { | |
1110 | devpriv->int818_mode = INT_TYPE_AO3_INT; | |
1111 | outb(0x82 | (dev->irq << 4), dev->iobase + PCL818_CONTROL); /* Ext trig+IRQ */ | |
1112 | }; | |
1113 | ||
1114 | start_pacer(dev, mode, divisor1, divisor2); | |
1115 | ||
1116 | return 0; | |
1117 | } | |
1118 | ||
1119 | /* | |
1120 | ============================================================================== | |
1121 | ANALOG OUTPUT MODE 1, 818 cards | |
1122 | */ | |
0a85b6f0 MT |
1123 | static int pcl818_ao_mode1(struct comedi_device *dev, |
1124 | struct comedi_subdevice *s, comedi_trig * it) | |
4da6a1d8 MD |
1125 | { |
1126 | return pcl818_ao_mode13(1, dev, s, it); | |
1127 | } | |
1128 | ||
1129 | /* | |
1130 | ============================================================================== | |
1131 | ANALOG OUTPUT MODE 3, 818 cards | |
1132 | */ | |
0a85b6f0 MT |
1133 | static int pcl818_ao_mode3(struct comedi_device *dev, |
1134 | struct comedi_subdevice *s, comedi_trig * it) | |
4da6a1d8 MD |
1135 | { |
1136 | return pcl818_ao_mode13(3, dev, s, it); | |
1137 | } | |
1138 | #endif | |
1139 | #endif | |
1140 | ||
1141 | /* | |
1142 | ============================================================================== | |
1143 | Start/stop pacer onboard pacer | |
1144 | */ | |
0a85b6f0 MT |
1145 | static void start_pacer(struct comedi_device *dev, int mode, |
1146 | unsigned int divisor1, unsigned int divisor2) | |
4da6a1d8 MD |
1147 | { |
1148 | outb(0xb4, dev->iobase + PCL818_CTRCTL); | |
1149 | outb(0x74, dev->iobase + PCL818_CTRCTL); | |
5f74ea14 | 1150 | udelay(1); |
4da6a1d8 MD |
1151 | |
1152 | if (mode == 1) { | |
1153 | outb(divisor2 & 0xff, dev->iobase + PCL818_CTR2); | |
1154 | outb((divisor2 >> 8) & 0xff, dev->iobase + PCL818_CTR2); | |
1155 | outb(divisor1 & 0xff, dev->iobase + PCL818_CTR1); | |
1156 | outb((divisor1 >> 8) & 0xff, dev->iobase + PCL818_CTR1); | |
1157 | } | |
1158 | } | |
1159 | ||
1160 | /* | |
1161 | ============================================================================== | |
1162 | Check if channel list from user is builded correctly | |
1163 | If it's ok, then program scan/gain logic | |
1164 | */ | |
0a85b6f0 MT |
1165 | static int check_channel_list(struct comedi_device *dev, |
1166 | struct comedi_subdevice *s, | |
1167 | unsigned int *chanlist, unsigned int n_chan) | |
4da6a1d8 MD |
1168 | { |
1169 | unsigned int chansegment[16]; | |
1170 | unsigned int i, nowmustbechan, seglen, segpos; | |
1171 | ||
1172 | /* correct channel and range number check itself comedi/range.c */ | |
1173 | if (n_chan < 1) { | |
1174 | comedi_error(dev, "range/channel list is empty!"); | |
1175 | return 0; | |
1176 | } | |
1177 | ||
1178 | if (n_chan > 1) { | |
25985edc | 1179 | /* first channel is every time ok */ |
4da6a1d8 | 1180 | chansegment[0] = chanlist[0]; |
0109253d | 1181 | /* build part of chanlist */ |
4da6a1d8 | 1182 | for (i = 1, seglen = 1; i < n_chan; i++, seglen++) { |
0109253d | 1183 | |
5f74ea14 | 1184 | /* printk("%d. %d * %d\n",i, |
0109253d BP |
1185 | * CR_CHAN(it->chanlist[i]),CR_RANGE(it->chanlist[i]));*/ |
1186 | ||
1187 | /* we detect loop, this must by finish */ | |
1188 | ||
4da6a1d8 MD |
1189 | if (chanlist[0] == chanlist[i]) |
1190 | break; | |
1191 | nowmustbechan = | |
0a85b6f0 | 1192 | (CR_CHAN(chansegment[i - 1]) + 1) % s->n_chan; |
25985edc | 1193 | if (nowmustbechan != CR_CHAN(chanlist[i])) { /* channel list isn't continuous :-( */ |
5f74ea14 | 1194 | printk |
25985edc | 1195 | ("comedi%d: pcl818: channel list must be continuous! chanlist[%i]=%d but must be %d or %d!\n", |
0a85b6f0 MT |
1196 | dev->minor, i, CR_CHAN(chanlist[i]), |
1197 | nowmustbechan, CR_CHAN(chanlist[0])); | |
4da6a1d8 MD |
1198 | return 0; |
1199 | } | |
0109253d | 1200 | /* well, this is next correct channel in list */ |
4da6a1d8 MD |
1201 | chansegment[i] = chanlist[i]; |
1202 | } | |
1203 | ||
0109253d | 1204 | /* check whole chanlist */ |
4da6a1d8 | 1205 | for (i = 0, segpos = 0; i < n_chan; i++) { |
5f74ea14 | 1206 | /* printk("%d %d=%d %d\n",CR_CHAN(chansegment[i%seglen]),CR_RANGE(chansegment[i%seglen]),CR_CHAN(it->chanlist[i]),CR_RANGE(it->chanlist[i])); */ |
4da6a1d8 | 1207 | if (chanlist[i] != chansegment[i % seglen]) { |
5f74ea14 | 1208 | printk |
0a85b6f0 MT |
1209 | ("comedi%d: pcl818: bad channel or range number! chanlist[%i]=%d,%d,%d and not %d,%d,%d!\n", |
1210 | dev->minor, i, CR_CHAN(chansegment[i]), | |
1211 | CR_RANGE(chansegment[i]), | |
1212 | CR_AREF(chansegment[i]), | |
1213 | CR_CHAN(chanlist[i % seglen]), | |
1214 | CR_RANGE(chanlist[i % seglen]), | |
1215 | CR_AREF(chansegment[i % seglen])); | |
0109253d | 1216 | return 0; /* chan/gain list is strange */ |
4da6a1d8 MD |
1217 | } |
1218 | } | |
1219 | } else { | |
1220 | seglen = 1; | |
1221 | } | |
5f74ea14 | 1222 | printk("check_channel_list: seglen %d\n", seglen); |
4da6a1d8 MD |
1223 | return seglen; |
1224 | } | |
1225 | ||
0a85b6f0 MT |
1226 | static void setup_channel_list(struct comedi_device *dev, |
1227 | struct comedi_subdevice *s, | |
1228 | unsigned int *chanlist, unsigned int n_chan, | |
1229 | unsigned int seglen) | |
4da6a1d8 MD |
1230 | { |
1231 | int i; | |
1232 | ||
1233 | devpriv->act_chanlist_len = seglen; | |
1234 | devpriv->act_chanlist_pos = 0; | |
1235 | ||
0109253d | 1236 | for (i = 0; i < seglen; i++) { /* store range list to card */ |
4da6a1d8 MD |
1237 | devpriv->act_chanlist[i] = CR_CHAN(chanlist[i]); |
1238 | outb(muxonechan[CR_CHAN(chanlist[i])], dev->iobase + PCL818_MUX); /* select channel */ | |
1239 | outb(CR_RANGE(chanlist[i]), dev->iobase + PCL818_RANGE); /* select gain */ | |
1240 | } | |
1241 | ||
5f74ea14 | 1242 | udelay(1); |
4da6a1d8 MD |
1243 | |
1244 | /* select channel interval to scan */ | |
1245 | outb(devpriv->act_chanlist[0] | (devpriv->act_chanlist[seglen - | |
0a85b6f0 MT |
1246 | 1] << 4), |
1247 | dev->iobase + PCL818_MUX); | |
4da6a1d8 MD |
1248 | } |
1249 | ||
1250 | /* | |
1251 | ============================================================================== | |
1252 | Check if board is switched to SE (1) or DIFF(0) mode | |
1253 | */ | |
1254 | static int check_single_ended(unsigned int port) | |
1255 | { | |
fc950139 | 1256 | if (inb(port + PCL818_STATUS) & 0x20) |
4da6a1d8 | 1257 | return 1; |
fc950139 | 1258 | return 0; |
4da6a1d8 MD |
1259 | } |
1260 | ||
1261 | /* | |
1262 | ============================================================================== | |
1263 | */ | |
da91b269 | 1264 | static int ai_cmdtest(struct comedi_device *dev, struct comedi_subdevice *s, |
0a85b6f0 | 1265 | struct comedi_cmd *cmd) |
4da6a1d8 MD |
1266 | { |
1267 | int err = 0; | |
48b1aff5 | 1268 | int tmp, divisor1 = 0, divisor2 = 0; |
4da6a1d8 MD |
1269 | |
1270 | /* step 1: make sure trigger sources are trivially valid */ | |
1271 | ||
1272 | tmp = cmd->start_src; | |
1273 | cmd->start_src &= TRIG_NOW; | |
1274 | if (!cmd->start_src || tmp != cmd->start_src) | |
1275 | err++; | |
1276 | ||
1277 | tmp = cmd->scan_begin_src; | |
1278 | cmd->scan_begin_src &= TRIG_FOLLOW; | |
1279 | if (!cmd->scan_begin_src || tmp != cmd->scan_begin_src) | |
1280 | err++; | |
1281 | ||
1282 | tmp = cmd->convert_src; | |
1283 | cmd->convert_src &= TRIG_TIMER | TRIG_EXT; | |
1284 | if (!cmd->convert_src || tmp != cmd->convert_src) | |
1285 | err++; | |
1286 | ||
1287 | tmp = cmd->scan_end_src; | |
1288 | cmd->scan_end_src &= TRIG_COUNT; | |
1289 | if (!cmd->scan_end_src || tmp != cmd->scan_end_src) | |
1290 | err++; | |
1291 | ||
1292 | tmp = cmd->stop_src; | |
1293 | cmd->stop_src &= TRIG_COUNT | TRIG_NONE; | |
1294 | if (!cmd->stop_src || tmp != cmd->stop_src) | |
1295 | err++; | |
1296 | ||
fc950139 | 1297 | if (err) |
4da6a1d8 | 1298 | return 1; |
4da6a1d8 MD |
1299 | |
1300 | /* step 2: make sure trigger sources are unique and mutually compatible */ | |
1301 | ||
1302 | if (cmd->start_src != TRIG_NOW) { | |
1303 | cmd->start_src = TRIG_NOW; | |
1304 | err++; | |
1305 | } | |
1306 | if (cmd->scan_begin_src != TRIG_FOLLOW) { | |
1307 | cmd->scan_begin_src = TRIG_FOLLOW; | |
1308 | err++; | |
1309 | } | |
1310 | if (cmd->convert_src != TRIG_TIMER && cmd->convert_src != TRIG_EXT) | |
1311 | err++; | |
1312 | ||
1313 | if (cmd->scan_end_src != TRIG_COUNT) { | |
1314 | cmd->scan_end_src = TRIG_COUNT; | |
1315 | err++; | |
1316 | } | |
1317 | ||
1318 | if (cmd->stop_src != TRIG_NONE && cmd->stop_src != TRIG_COUNT) | |
1319 | err++; | |
1320 | ||
fc950139 | 1321 | if (err) |
4da6a1d8 | 1322 | return 2; |
4da6a1d8 MD |
1323 | |
1324 | /* step 3: make sure arguments are trivially compatible */ | |
1325 | ||
1326 | if (cmd->start_arg != 0) { | |
1327 | cmd->start_arg = 0; | |
1328 | err++; | |
1329 | } | |
1330 | ||
1331 | if (cmd->scan_begin_arg != 0) { | |
1332 | cmd->scan_begin_arg = 0; | |
1333 | err++; | |
1334 | } | |
1335 | ||
1336 | if (cmd->convert_src == TRIG_TIMER) { | |
1337 | if (cmd->convert_arg < this_board->ns_min) { | |
1338 | cmd->convert_arg = this_board->ns_min; | |
1339 | err++; | |
1340 | } | |
1341 | } else { /* TRIG_EXT */ | |
1342 | if (cmd->convert_arg != 0) { | |
1343 | cmd->convert_arg = 0; | |
1344 | err++; | |
1345 | } | |
1346 | } | |
1347 | ||
4da6a1d8 MD |
1348 | if (cmd->scan_end_arg != cmd->chanlist_len) { |
1349 | cmd->scan_end_arg = cmd->chanlist_len; | |
1350 | err++; | |
1351 | } | |
1352 | if (cmd->stop_src == TRIG_COUNT) { | |
1353 | if (!cmd->stop_arg) { | |
1354 | cmd->stop_arg = 1; | |
1355 | err++; | |
1356 | } | |
1357 | } else { /* TRIG_NONE */ | |
1358 | if (cmd->stop_arg != 0) { | |
1359 | cmd->stop_arg = 0; | |
1360 | err++; | |
1361 | } | |
1362 | } | |
1363 | ||
fc950139 | 1364 | if (err) |
4da6a1d8 | 1365 | return 3; |
4da6a1d8 MD |
1366 | |
1367 | /* step 4: fix up any arguments */ | |
1368 | ||
1369 | if (cmd->convert_src == TRIG_TIMER) { | |
1370 | tmp = cmd->convert_arg; | |
1371 | i8253_cascade_ns_to_timer(devpriv->i8253_osc_base, &divisor1, | |
0a85b6f0 MT |
1372 | &divisor2, &cmd->convert_arg, |
1373 | cmd->flags & TRIG_ROUND_MASK); | |
4da6a1d8 MD |
1374 | if (cmd->convert_arg < this_board->ns_min) |
1375 | cmd->convert_arg = this_board->ns_min; | |
1376 | if (tmp != cmd->convert_arg) | |
1377 | err++; | |
1378 | } | |
1379 | ||
fc950139 | 1380 | if (err) |
4da6a1d8 | 1381 | return 4; |
4da6a1d8 MD |
1382 | |
1383 | /* step 5: complain about special chanlist considerations */ | |
1384 | ||
1385 | if (cmd->chanlist) { | |
1386 | if (!check_channel_list(dev, s, cmd->chanlist, | |
0a85b6f0 | 1387 | cmd->chanlist_len)) |
0109253d | 1388 | return 5; /* incorrect channels list */ |
4da6a1d8 MD |
1389 | } |
1390 | ||
1391 | return 0; | |
1392 | } | |
1393 | ||
1394 | /* | |
1395 | ============================================================================== | |
1396 | */ | |
da91b269 | 1397 | static int ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s) |
4da6a1d8 | 1398 | { |
ea6d0d4c | 1399 | struct comedi_cmd *cmd = &s->async->cmd; |
4da6a1d8 MD |
1400 | int retval; |
1401 | ||
c62a0ef4 | 1402 | dev_dbg(dev->hw_dev, "pcl818_ai_cmd()\n"); |
4da6a1d8 MD |
1403 | devpriv->ai_n_chan = cmd->chanlist_len; |
1404 | devpriv->ai_chanlist = cmd->chanlist; | |
1405 | devpriv->ai_flags = cmd->flags; | |
1406 | devpriv->ai_data_len = s->async->prealloc_bufsz; | |
1407 | devpriv->ai_data = s->async->prealloc_buf; | |
1408 | devpriv->ai_timer1 = 0; | |
1409 | devpriv->ai_timer2 = 0; | |
1410 | ||
fc950139 | 1411 | if (cmd->stop_src == TRIG_COUNT) |
4da6a1d8 | 1412 | devpriv->ai_scans = cmd->stop_arg; |
fc950139 | 1413 | else |
4da6a1d8 | 1414 | devpriv->ai_scans = 0; |
4da6a1d8 | 1415 | |
0109253d BP |
1416 | if (cmd->scan_begin_src == TRIG_FOLLOW) { /* mode 1, 3 */ |
1417 | if (cmd->convert_src == TRIG_TIMER) { /* mode 1 */ | |
4da6a1d8 MD |
1418 | devpriv->ai_timer1 = cmd->convert_arg; |
1419 | retval = pcl818_ai_cmd_mode(1, dev, s); | |
c62a0ef4 | 1420 | dev_dbg(dev->hw_dev, "pcl818_ai_cmd() end\n"); |
4da6a1d8 MD |
1421 | return retval; |
1422 | } | |
0109253d | 1423 | if (cmd->convert_src == TRIG_EXT) { /* mode 3 */ |
4da6a1d8 MD |
1424 | return pcl818_ai_cmd_mode(3, dev, s); |
1425 | } | |
1426 | } | |
1427 | ||
1428 | return -1; | |
1429 | } | |
1430 | ||
1431 | /* | |
1432 | ============================================================================== | |
1433 | cancel any mode 1-4 AI | |
1434 | */ | |
0a85b6f0 MT |
1435 | static int pcl818_ai_cancel(struct comedi_device *dev, |
1436 | struct comedi_subdevice *s) | |
4da6a1d8 MD |
1437 | { |
1438 | if (devpriv->irq_blocked > 0) { | |
c62a0ef4 | 1439 | dev_dbg(dev->hw_dev, "pcl818_ai_cancel()\n"); |
e21de1a8 | 1440 | devpriv->irq_was_now_closed = 1; |
4da6a1d8 | 1441 | |
e21de1a8 | 1442 | switch (devpriv->ai_mode) { |
4da6a1d8 MD |
1443 | #ifdef unused |
1444 | case INT_TYPE_AI1_DMA_RTC: | |
1445 | case INT_TYPE_AI3_DMA_RTC: | |
0109253d | 1446 | set_rtc_irq_bit(0); /* stop RTC */ |
4da6a1d8 MD |
1447 | del_timer(&devpriv->rtc_irq_timer); |
1448 | #endif | |
1449 | case INT_TYPE_AI1_DMA: | |
1450 | case INT_TYPE_AI3_DMA: | |
e21de1a8 | 1451 | if (devpriv->neverending_ai || |
0a85b6f0 MT |
1452 | (!devpriv->neverending_ai && |
1453 | devpriv->ai_act_scan > 0)) { | |
4da6a1d8 MD |
1454 | /* wait for running dma transfer to end, do cleanup in interrupt */ |
1455 | goto end; | |
1456 | } | |
1457 | disable_dma(devpriv->dma); | |
1458 | case INT_TYPE_AI1_INT: | |
1459 | case INT_TYPE_AI3_INT: | |
1460 | case INT_TYPE_AI1_FIFO: | |
1461 | case INT_TYPE_AI3_FIFO: | |
1462 | #ifdef PCL818_MODE13_AO | |
1463 | case INT_TYPE_AO1_INT: | |
1464 | case INT_TYPE_AO3_INT: | |
1465 | #endif | |
1466 | outb(inb(dev->iobase + PCL818_CONTROL) & 0x73, dev->iobase + PCL818_CONTROL); /* Stop A/D */ | |
5f74ea14 | 1467 | udelay(1); |
4da6a1d8 MD |
1468 | start_pacer(dev, -1, 0, 0); |
1469 | outb(0, dev->iobase + PCL818_AD_LO); | |
1470 | inb(dev->iobase + PCL818_AD_LO); | |
1471 | inb(dev->iobase + PCL818_AD_HI); | |
1472 | outb(0, dev->iobase + PCL818_CLRINT); /* clear INT request */ | |
1473 | outb(0, dev->iobase + PCL818_CONTROL); /* Stop A/D */ | |
0109253d | 1474 | if (devpriv->usefifo) { /* FIFO shutdown */ |
4da6a1d8 MD |
1475 | outb(0, dev->iobase + PCL818_FI_INTCLR); |
1476 | outb(0, dev->iobase + PCL818_FI_FLUSH); | |
1477 | outb(0, dev->iobase + PCL818_FI_ENABLE); | |
1478 | } | |
1479 | devpriv->irq_blocked = 0; | |
1480 | devpriv->last_int_sub = s; | |
1481 | devpriv->neverending_ai = 0; | |
e21de1a8 IA |
1482 | devpriv->ai_mode = 0; |
1483 | devpriv->irq_was_now_closed = 0; | |
4da6a1d8 MD |
1484 | break; |
1485 | } | |
1486 | } | |
1487 | ||
0a85b6f0 | 1488 | end: |
c62a0ef4 | 1489 | dev_dbg(dev->hw_dev, "pcl818_ai_cancel() end\n"); |
4da6a1d8 MD |
1490 | return 0; |
1491 | } | |
1492 | ||
1493 | /* | |
1494 | ============================================================================== | |
1495 | chech for PCL818 | |
1496 | */ | |
1497 | static int pcl818_check(unsigned long iobase) | |
1498 | { | |
1499 | outb(0x00, iobase + PCL818_MUX); | |
5f74ea14 | 1500 | udelay(1); |
4da6a1d8 | 1501 | if (inb(iobase + PCL818_MUX) != 0x00) |
0109253d | 1502 | return 1; /* there isn't card */ |
4da6a1d8 | 1503 | outb(0x55, iobase + PCL818_MUX); |
5f74ea14 | 1504 | udelay(1); |
4da6a1d8 | 1505 | if (inb(iobase + PCL818_MUX) != 0x55) |
0109253d | 1506 | return 1; /* there isn't card */ |
4da6a1d8 | 1507 | outb(0x00, iobase + PCL818_MUX); |
5f74ea14 | 1508 | udelay(1); |
4da6a1d8 | 1509 | outb(0x18, iobase + PCL818_CONTROL); |
5f74ea14 | 1510 | udelay(1); |
4da6a1d8 | 1511 | if (inb(iobase + PCL818_CONTROL) != 0x18) |
0109253d BP |
1512 | return 1; /* there isn't card */ |
1513 | return 0; /* ok, card exist */ | |
4da6a1d8 MD |
1514 | } |
1515 | ||
1516 | /* | |
1517 | ============================================================================== | |
1518 | reset whole PCL-818 cards | |
1519 | */ | |
da91b269 | 1520 | static void pcl818_reset(struct comedi_device *dev) |
4da6a1d8 | 1521 | { |
0109253d | 1522 | if (devpriv->usefifo) { /* FIFO shutdown */ |
4da6a1d8 MD |
1523 | outb(0, dev->iobase + PCL818_FI_INTCLR); |
1524 | outb(0, dev->iobase + PCL818_FI_FLUSH); | |
1525 | outb(0, dev->iobase + PCL818_FI_ENABLE); | |
1526 | } | |
0109253d | 1527 | outb(0, dev->iobase + PCL818_DA_LO); /* DAC=0V */ |
4da6a1d8 | 1528 | outb(0, dev->iobase + PCL818_DA_HI); |
5f74ea14 | 1529 | udelay(1); |
0109253d | 1530 | outb(0, dev->iobase + PCL818_DO_HI); /* DO=$0000 */ |
4da6a1d8 | 1531 | outb(0, dev->iobase + PCL818_DO_LO); |
5f74ea14 | 1532 | udelay(1); |
4da6a1d8 MD |
1533 | outb(0, dev->iobase + PCL818_CONTROL); |
1534 | outb(0, dev->iobase + PCL818_CNTENABLE); | |
1535 | outb(0, dev->iobase + PCL818_MUX); | |
1536 | outb(0, dev->iobase + PCL818_CLRINT); | |
1537 | outb(0xb0, dev->iobase + PCL818_CTRCTL); /* Stop pacer */ | |
1538 | outb(0x70, dev->iobase + PCL818_CTRCTL); | |
1539 | outb(0x30, dev->iobase + PCL818_CTRCTL); | |
1540 | if (this_board->is_818) { | |
1541 | outb(0, dev->iobase + PCL818_RANGE); | |
1542 | } else { | |
1543 | outb(0, dev->iobase + PCL718_DA2_LO); | |
1544 | outb(0, dev->iobase + PCL718_DA2_HI); | |
1545 | } | |
1546 | } | |
1547 | ||
1548 | #ifdef unused | |
1549 | /* | |
1550 | ============================================================================== | |
1551 | Enable(1)/disable(0) periodic interrupts from RTC | |
1552 | */ | |
1553 | static int set_rtc_irq_bit(unsigned char bit) | |
1554 | { | |
1555 | unsigned char val; | |
1556 | unsigned long flags; | |
1557 | ||
1558 | if (bit == 1) { | |
1559 | RTC_timer_lock++; | |
1560 | if (RTC_timer_lock > 1) | |
1561 | return 0; | |
1562 | } else { | |
1563 | RTC_timer_lock--; | |
1564 | if (RTC_timer_lock < 0) | |
1565 | RTC_timer_lock = 0; | |
1566 | if (RTC_timer_lock > 0) | |
1567 | return 0; | |
1568 | } | |
1569 | ||
1570 | save_flags(flags); | |
1571 | cli(); | |
1572 | val = CMOS_READ(RTC_CONTROL); | |
fc950139 | 1573 | if (bit) |
4da6a1d8 | 1574 | val |= RTC_PIE; |
fc950139 | 1575 | else |
4da6a1d8 | 1576 | val &= ~RTC_PIE; |
fc950139 | 1577 | |
4da6a1d8 MD |
1578 | CMOS_WRITE(val, RTC_CONTROL); |
1579 | CMOS_READ(RTC_INTR_FLAGS); | |
1580 | restore_flags(flags); | |
1581 | return 0; | |
1582 | } | |
1583 | ||
1584 | /* | |
1585 | ============================================================================== | |
1586 | Restart RTC if something stop it (xntpd every 11 mins or large IDE transfers) | |
1587 | */ | |
1588 | static void rtc_dropped_irq(unsigned long data) | |
1589 | { | |
71b5f4f1 | 1590 | struct comedi_device *dev = (void *)data; |
4da6a1d8 MD |
1591 | unsigned long flags, tmp; |
1592 | ||
1593 | switch (devpriv->int818_mode) { | |
1594 | case INT_TYPE_AI1_DMA_RTC: | |
1595 | case INT_TYPE_AI3_DMA_RTC: | |
1596 | mod_timer(&devpriv->rtc_irq_timer, | |
0a85b6f0 | 1597 | jiffies + HZ / devpriv->rtc_freq + 2 * HZ / 100); |
4da6a1d8 MD |
1598 | save_flags(flags); |
1599 | cli(); | |
1600 | tmp = (CMOS_READ(RTC_INTR_FLAGS) & 0xF0); /* restart */ | |
1601 | restore_flags(flags); | |
1602 | break; | |
95cd17c9 | 1603 | } |
4da6a1d8 MD |
1604 | } |
1605 | ||
1606 | /* | |
1607 | ============================================================================== | |
1608 | Set frequency of interrupts from RTC | |
1609 | */ | |
1610 | static int rtc_setfreq_irq(int freq) | |
1611 | { | |
1612 | int tmp = 0; | |
1613 | int rtc_freq; | |
1614 | unsigned char val; | |
1615 | unsigned long flags; | |
1616 | ||
1617 | if (freq < 2) | |
1618 | freq = 2; | |
1619 | if (freq > 8192) | |
1620 | freq = 8192; | |
1621 | ||
1622 | while (freq > (1 << tmp)) | |
1623 | tmp++; | |
1624 | ||
1625 | rtc_freq = 1 << tmp; | |
1626 | ||
1627 | save_flags(flags); | |
1628 | cli(); | |
1629 | val = CMOS_READ(RTC_FREQ_SELECT) & 0xf0; | |
1630 | val |= (16 - tmp); | |
1631 | CMOS_WRITE(val, RTC_FREQ_SELECT); | |
1632 | restore_flags(flags); | |
1633 | return rtc_freq; | |
1634 | } | |
1635 | #endif | |
1636 | ||
1637 | /* | |
1638 | ============================================================================== | |
1639 | Free any resources that we have claimed | |
1640 | */ | |
da91b269 | 1641 | static void free_resources(struct comedi_device *dev) |
4da6a1d8 | 1642 | { |
5f74ea14 | 1643 | /* printk("free_resource()\n"); */ |
4da6a1d8 MD |
1644 | if (dev->private) { |
1645 | pcl818_ai_cancel(dev, devpriv->sub_ai); | |
1646 | pcl818_reset(dev); | |
1647 | if (devpriv->dma) | |
1648 | free_dma(devpriv->dma); | |
1649 | if (devpriv->dmabuf[0]) | |
1650 | free_pages(devpriv->dmabuf[0], devpriv->dmapages[0]); | |
1651 | if (devpriv->dmabuf[1]) | |
1652 | free_pages(devpriv->dmabuf[1], devpriv->dmapages[1]); | |
1653 | #ifdef unused | |
1654 | if (devpriv->rtc_irq) | |
5f74ea14 | 1655 | free_irq(devpriv->rtc_irq, dev); |
4da6a1d8 MD |
1656 | if ((devpriv->dma_rtc) && (RTC_lock == 1)) { |
1657 | if (devpriv->rtc_iobase) | |
1658 | release_region(devpriv->rtc_iobase, | |
0a85b6f0 | 1659 | devpriv->rtc_iosize); |
4da6a1d8 MD |
1660 | } |
1661 | if (devpriv->dma_rtc) | |
1662 | RTC_lock--; | |
1663 | #endif | |
1664 | } | |
1665 | ||
1666 | if (dev->irq) | |
1667 | free_irq(dev->irq, dev); | |
1668 | if (dev->iobase) | |
1669 | release_region(dev->iobase, devpriv->io_range); | |
5f74ea14 | 1670 | /* printk("free_resource() end\n"); */ |
4da6a1d8 MD |
1671 | } |
1672 | ||
da91b269 | 1673 | static int pcl818_attach(struct comedi_device *dev, struct comedi_devconfig *it) |
4da6a1d8 MD |
1674 | { |
1675 | int ret; | |
1676 | unsigned long iobase; | |
a71f18d2 IA |
1677 | unsigned int irq; |
1678 | int dma; | |
4da6a1d8 | 1679 | unsigned long pages; |
34c43922 | 1680 | struct comedi_subdevice *s; |
4da6a1d8 | 1681 | |
c3744138 BP |
1682 | ret = alloc_private(dev, sizeof(struct pcl818_private)); |
1683 | if (ret < 0) | |
4da6a1d8 MD |
1684 | return ret; /* Can't alloc mem */ |
1685 | ||
1686 | /* claim our I/O space */ | |
1687 | iobase = it->options[0]; | |
26ba666c RM |
1688 | printk |
1689 | ("comedi%d: pcl818: board=%s, ioport=0x%03lx", | |
1690 | dev->minor, this_board->name, iobase); | |
4da6a1d8 | 1691 | devpriv->io_range = this_board->io_range; |
0109253d | 1692 | if ((this_board->fifo) && (it->options[2] == -1)) { /* we've board with FIFO and we want to use FIFO */ |
4da6a1d8 MD |
1693 | devpriv->io_range = PCLx1xFIFO_RANGE; |
1694 | devpriv->usefifo = 1; | |
1695 | } | |
1696 | if (!request_region(iobase, devpriv->io_range, "pcl818")) { | |
26ba666c | 1697 | comedi_error(dev, "I/O port conflict\n"); |
4da6a1d8 MD |
1698 | return -EIO; |
1699 | } | |
1700 | ||
1701 | dev->iobase = iobase; | |
1702 | ||
1703 | if (pcl818_check(iobase)) { | |
26ba666c | 1704 | comedi_error(dev, "I can't detect board. FAIL!\n"); |
4da6a1d8 MD |
1705 | return -EIO; |
1706 | } | |
1707 | ||
1708 | /* set up some name stuff */ | |
1709 | dev->board_name = this_board->name; | |
1710 | /* grab our IRQ */ | |
1711 | irq = 0; | |
1712 | if (this_board->IRQbits != 0) { /* board support IRQ */ | |
1713 | irq = it->options[1]; | |
1714 | if (irq) { /* we want to use IRQ */ | |
1715 | if (((1 << irq) & this_board->IRQbits) == 0) { | |
5f74ea14 | 1716 | printk |
0a85b6f0 MT |
1717 | (", IRQ %u is out of allowed range, DISABLING IT", |
1718 | irq); | |
4da6a1d8 MD |
1719 | irq = 0; /* Bad IRQ */ |
1720 | } else { | |
0a85b6f0 MT |
1721 | if (request_irq |
1722 | (irq, interrupt_pcl818, 0, "pcl818", dev)) { | |
5f74ea14 | 1723 | printk |
0a85b6f0 MT |
1724 | (", unable to allocate IRQ %u, DISABLING IT", |
1725 | irq); | |
4da6a1d8 MD |
1726 | irq = 0; /* Can't use IRQ */ |
1727 | } else { | |
26ba666c | 1728 | printk(KERN_DEBUG "irq=%u", irq); |
4da6a1d8 MD |
1729 | } |
1730 | } | |
1731 | } | |
1732 | } | |
1733 | ||
1734 | dev->irq = irq; | |
fc950139 RM |
1735 | if (irq) |
1736 | devpriv->irq_free = 1; /* 1=we have allocated irq */ | |
1737 | else | |
4da6a1d8 | 1738 | devpriv->irq_free = 0; |
fc950139 | 1739 | |
4da6a1d8 MD |
1740 | devpriv->irq_blocked = 0; /* number of subdevice which use IRQ */ |
1741 | devpriv->ai_mode = 0; /* mode of irq */ | |
1742 | ||
1743 | #ifdef unused | |
1744 | /* grab RTC for DMA operations */ | |
1745 | devpriv->dma_rtc = 0; | |
0109253d | 1746 | if (it->options[2] > 0) { /* we want to use DMA */ |
4da6a1d8 MD |
1747 | if (RTC_lock == 0) { |
1748 | if (!request_region(RTC_PORT(0), RTC_IO_EXTENT, | |
0a85b6f0 | 1749 | "pcl818 (RTC)")) |
4da6a1d8 MD |
1750 | goto no_rtc; |
1751 | } | |
1752 | devpriv->rtc_iobase = RTC_PORT(0); | |
1753 | devpriv->rtc_iosize = RTC_IO_EXTENT; | |
1754 | RTC_lock++; | |
5f74ea14 | 1755 | if (!request_irq(RTC_IRQ, interrupt_pcl818_ai_mode13_dma_rtc, 0, |
0a85b6f0 | 1756 | "pcl818 DMA (RTC)", dev)) { |
4da6a1d8 MD |
1757 | devpriv->dma_rtc = 1; |
1758 | devpriv->rtc_irq = RTC_IRQ; | |
26ba666c | 1759 | printk(KERN_DEBUG "dma_irq=%u", devpriv->rtc_irq); |
4da6a1d8 MD |
1760 | } else { |
1761 | RTC_lock--; | |
1762 | if (RTC_lock == 0) { | |
1763 | if (devpriv->rtc_iobase) | |
1764 | release_region(devpriv->rtc_iobase, | |
0a85b6f0 | 1765 | devpriv->rtc_iosize); |
4da6a1d8 MD |
1766 | } |
1767 | devpriv->rtc_iobase = 0; | |
1768 | devpriv->rtc_iosize = 0; | |
1769 | } | |
1770 | } | |
1771 | ||
0a85b6f0 | 1772 | no_rtc: |
4da6a1d8 MD |
1773 | #endif |
1774 | /* grab our DMA */ | |
1775 | dma = 0; | |
1776 | devpriv->dma = dma; | |
1777 | if ((devpriv->irq_free == 0) && (devpriv->dma_rtc == 0)) | |
1778 | goto no_dma; /* if we haven't IRQ, we can't use DMA */ | |
1779 | if (this_board->DMAbits != 0) { /* board support DMA */ | |
1780 | dma = it->options[2]; | |
1781 | if (dma < 1) | |
1782 | goto no_dma; /* DMA disabled */ | |
1783 | if (((1 << dma) & this_board->DMAbits) == 0) { | |
408f6bcd | 1784 | printk(KERN_ERR "DMA is out of allowed range, FAIL!\n"); |
4da6a1d8 MD |
1785 | return -EINVAL; /* Bad DMA */ |
1786 | } | |
1787 | ret = request_dma(dma, "pcl818"); | |
408f6bcd | 1788 | if (ret) |
4da6a1d8 | 1789 | return -EBUSY; /* DMA isn't free */ |
4da6a1d8 | 1790 | devpriv->dma = dma; |
4da6a1d8 MD |
1791 | pages = 2; /* we need 16KB */ |
1792 | devpriv->dmabuf[0] = __get_dma_pages(GFP_KERNEL, pages); | |
408f6bcd | 1793 | if (!devpriv->dmabuf[0]) |
4da6a1d8 MD |
1794 | /* maybe experiment with try_to_free_pages() will help .... */ |
1795 | return -EBUSY; /* no buffer :-( */ | |
4da6a1d8 MD |
1796 | devpriv->dmapages[0] = pages; |
1797 | devpriv->hwdmaptr[0] = virt_to_bus((void *)devpriv->dmabuf[0]); | |
1798 | devpriv->hwdmasize[0] = (1 << pages) * PAGE_SIZE; | |
5f74ea14 | 1799 | /* printk("%d %d %ld, ",devpriv->dmapages[0],devpriv->hwdmasize[0],PAGE_SIZE); */ |
0109253d | 1800 | if (devpriv->dma_rtc == 0) { /* we must do duble buff :-( */ |
4da6a1d8 | 1801 | devpriv->dmabuf[1] = __get_dma_pages(GFP_KERNEL, pages); |
408f6bcd | 1802 | if (!devpriv->dmabuf[1]) |
4da6a1d8 | 1803 | return -EBUSY; |
4da6a1d8 MD |
1804 | devpriv->dmapages[1] = pages; |
1805 | devpriv->hwdmaptr[1] = | |
0a85b6f0 | 1806 | virt_to_bus((void *)devpriv->dmabuf[1]); |
4da6a1d8 MD |
1807 | devpriv->hwdmasize[1] = (1 << pages) * PAGE_SIZE; |
1808 | } | |
1809 | } | |
1810 | ||
0a85b6f0 | 1811 | no_dma: |
4da6a1d8 | 1812 | |
c3744138 BP |
1813 | ret = alloc_subdevices(dev, 4); |
1814 | if (ret < 0) | |
4da6a1d8 MD |
1815 | return ret; |
1816 | ||
1817 | s = dev->subdevices + 0; | |
1818 | if (!this_board->n_aichan_se) { | |
1819 | s->type = COMEDI_SUBD_UNUSED; | |
1820 | } else { | |
1821 | s->type = COMEDI_SUBD_AI; | |
1822 | devpriv->sub_ai = s; | |
1823 | s->subdev_flags = SDF_READABLE; | |
1824 | if (check_single_ended(dev->iobase)) { | |
1825 | s->n_chan = this_board->n_aichan_se; | |
1826 | s->subdev_flags |= SDF_COMMON | SDF_GROUND; | |
1827 | printk(", %dchans S.E. DAC", s->n_chan); | |
1828 | } else { | |
1829 | s->n_chan = this_board->n_aichan_diff; | |
1830 | s->subdev_flags |= SDF_DIFF; | |
1831 | printk(", %dchans DIFF DAC", s->n_chan); | |
1832 | } | |
1833 | s->maxdata = this_board->ai_maxdata; | |
1834 | s->len_chanlist = s->n_chan; | |
1835 | s->range_table = this_board->ai_range_type; | |
1836 | s->cancel = pcl818_ai_cancel; | |
1837 | s->insn_read = pcl818_ai_insn_read; | |
1838 | if ((irq) || (devpriv->dma_rtc)) { | |
1839 | dev->read_subdev = s; | |
1840 | s->subdev_flags |= SDF_CMD_READ; | |
1841 | s->do_cmdtest = ai_cmdtest; | |
1842 | s->do_cmd = ai_cmd; | |
1843 | } | |
1844 | if (this_board->is_818) { | |
1845 | if ((it->options[4] == 1) || (it->options[4] == 10)) | |
0109253d | 1846 | s->range_table = &range_pcl818l_h_ai; /* secondary range list jumper selectable */ |
4da6a1d8 MD |
1847 | } else { |
1848 | switch (it->options[4]) { | |
1849 | case 0: | |
1850 | s->range_table = &range_bipolar10; | |
1851 | break; | |
1852 | case 1: | |
1853 | s->range_table = &range_bipolar5; | |
1854 | break; | |
1855 | case 2: | |
1856 | s->range_table = &range_bipolar2_5; | |
1857 | break; | |
1858 | case 3: | |
1859 | s->range_table = &range718_bipolar1; | |
1860 | break; | |
1861 | case 4: | |
1862 | s->range_table = &range718_bipolar0_5; | |
1863 | break; | |
1864 | case 6: | |
1865 | s->range_table = &range_unipolar10; | |
1866 | break; | |
1867 | case 7: | |
1868 | s->range_table = &range_unipolar5; | |
1869 | break; | |
1870 | case 8: | |
1871 | s->range_table = &range718_unipolar2; | |
1872 | break; | |
1873 | case 9: | |
1874 | s->range_table = &range718_unipolar1; | |
1875 | break; | |
1876 | default: | |
1877 | s->range_table = &range_unknown; | |
1878 | break; | |
1879 | } | |
1880 | } | |
1881 | } | |
1882 | ||
1883 | s = dev->subdevices + 1; | |
1884 | if (!this_board->n_aochan) { | |
1885 | s->type = COMEDI_SUBD_UNUSED; | |
1886 | } else { | |
1887 | s->type = COMEDI_SUBD_AO; | |
1888 | s->subdev_flags = SDF_WRITABLE | SDF_GROUND; | |
1889 | s->n_chan = this_board->n_aochan; | |
1890 | s->maxdata = this_board->ao_maxdata; | |
1891 | s->len_chanlist = this_board->n_aochan; | |
1892 | s->range_table = this_board->ao_range_type; | |
1893 | s->insn_read = pcl818_ao_insn_read; | |
1894 | s->insn_write = pcl818_ao_insn_write; | |
1895 | #ifdef unused | |
1896 | #ifdef PCL818_MODE13_AO | |
1897 | if (irq) { | |
1898 | s->trig[1] = pcl818_ao_mode1; | |
1899 | s->trig[3] = pcl818_ao_mode3; | |
1900 | } | |
1901 | #endif | |
1902 | #endif | |
1903 | if (this_board->is_818) { | |
1904 | if ((it->options[4] == 1) || (it->options[4] == 10)) | |
1905 | s->range_table = &range_unipolar10; | |
1906 | if (it->options[4] == 2) | |
1907 | s->range_table = &range_unknown; | |
1908 | } else { | |
1909 | if ((it->options[5] == 1) || (it->options[5] == 10)) | |
1910 | s->range_table = &range_unipolar10; | |
1911 | if (it->options[5] == 2) | |
1912 | s->range_table = &range_unknown; | |
1913 | } | |
1914 | } | |
1915 | ||
1916 | s = dev->subdevices + 2; | |
1917 | if (!this_board->n_dichan) { | |
1918 | s->type = COMEDI_SUBD_UNUSED; | |
1919 | } else { | |
1920 | s->type = COMEDI_SUBD_DI; | |
1921 | s->subdev_flags = SDF_READABLE; | |
1922 | s->n_chan = this_board->n_dichan; | |
1923 | s->maxdata = 1; | |
1924 | s->len_chanlist = this_board->n_dichan; | |
1925 | s->range_table = &range_digital; | |
1926 | s->insn_bits = pcl818_di_insn_bits; | |
1927 | } | |
1928 | ||
1929 | s = dev->subdevices + 3; | |
1930 | if (!this_board->n_dochan) { | |
1931 | s->type = COMEDI_SUBD_UNUSED; | |
1932 | } else { | |
1933 | s->type = COMEDI_SUBD_DO; | |
1934 | s->subdev_flags = SDF_WRITABLE; | |
1935 | s->n_chan = this_board->n_dochan; | |
1936 | s->maxdata = 1; | |
1937 | s->len_chanlist = this_board->n_dochan; | |
1938 | s->range_table = &range_digital; | |
1939 | s->insn_bits = pcl818_do_insn_bits; | |
1940 | } | |
1941 | ||
1942 | /* select 1/10MHz oscilator */ | |
fc950139 | 1943 | if ((it->options[3] == 0) || (it->options[3] == 10)) |
4da6a1d8 | 1944 | devpriv->i8253_osc_base = 100; |
fc950139 | 1945 | else |
4da6a1d8 | 1946 | devpriv->i8253_osc_base = 1000; |
4da6a1d8 MD |
1947 | |
1948 | /* max sampling speed */ | |
1949 | devpriv->ns_min = this_board->ns_min; | |
1950 | ||
1951 | if (!this_board->is_818) { | |
1952 | if ((it->options[6] == 1) || (it->options[6] == 100)) | |
1953 | devpriv->ns_min = 10000; /* extended PCL718 to 100kHz DAC */ | |
1954 | } | |
1955 | ||
1956 | pcl818_reset(dev); | |
1957 | ||
5f74ea14 | 1958 | printk("\n"); |
4da6a1d8 MD |
1959 | |
1960 | return 0; | |
1961 | } | |
1962 | ||
da91b269 | 1963 | static int pcl818_detach(struct comedi_device *dev) |
4da6a1d8 | 1964 | { |
5f74ea14 | 1965 | /* printk("comedi%d: pcl818: remove\n", dev->minor); */ |
4da6a1d8 MD |
1966 | free_resources(dev); |
1967 | return 0; | |
1968 | } | |
90f703d3 | 1969 | |
f6aafa10 HS |
1970 | static const struct pcl818_board boardtypes[] = { |
1971 | {"pcl818l", 4, 16, 8, 25000, 1, 16, 16, &range_pcl818l_l_ai, | |
1972 | &range_unipolar5, PCLx1x_RANGE, 0x00fc, | |
1973 | 0x0a, 0xfff, 0xfff, 0, 1}, | |
1974 | {"pcl818h", 9, 16, 8, 10000, 1, 16, 16, &range_pcl818h_ai, | |
1975 | &range_unipolar5, PCLx1x_RANGE, 0x00fc, | |
1976 | 0x0a, 0xfff, 0xfff, 0, 1}, | |
1977 | {"pcl818hd", 9, 16, 8, 10000, 1, 16, 16, &range_pcl818h_ai, | |
1978 | &range_unipolar5, PCLx1x_RANGE, 0x00fc, | |
1979 | 0x0a, 0xfff, 0xfff, 1, 1}, | |
1980 | {"pcl818hg", 12, 16, 8, 10000, 1, 16, 16, &range_pcl818hg_ai, | |
1981 | &range_unipolar5, PCLx1x_RANGE, 0x00fc, | |
1982 | 0x0a, 0xfff, 0xfff, 1, 1}, | |
1983 | {"pcl818", 9, 16, 8, 10000, 2, 16, 16, &range_pcl818h_ai, | |
1984 | &range_unipolar5, PCLx1x_RANGE, 0x00fc, | |
1985 | 0x0a, 0xfff, 0xfff, 0, 1}, | |
1986 | {"pcl718", 1, 16, 8, 16000, 2, 16, 16, &range_unipolar5, | |
1987 | &range_unipolar5, PCLx1x_RANGE, 0x00fc, | |
1988 | 0x0a, 0xfff, 0xfff, 0, 0}, | |
1989 | /* pcm3718 */ | |
1990 | {"pcm3718", 9, 16, 8, 10000, 0, 16, 16, &range_pcl818h_ai, | |
1991 | &range_unipolar5, PCLx1x_RANGE, 0x00fc, | |
1992 | 0x0a, 0xfff, 0xfff, 0, 1 /* XXX ? */ }, | |
1993 | }; | |
1994 | ||
294f930d | 1995 | static struct comedi_driver pcl818_driver = { |
f6aafa10 HS |
1996 | .driver_name = "pcl818", |
1997 | .module = THIS_MODULE, | |
1998 | .attach = pcl818_attach, | |
1999 | .detach = pcl818_detach, | |
2000 | .board_name = &boardtypes[0].name, | |
2001 | .num_names = ARRAY_SIZE(boardtypes), | |
2002 | .offset = sizeof(struct pcl818_board), | |
2003 | }; | |
294f930d | 2004 | module_comedi_driver(pcl818_driver); |
f6aafa10 | 2005 | |
90f703d3 AT |
2006 | MODULE_AUTHOR("Comedi http://www.comedi.org"); |
2007 | MODULE_DESCRIPTION("Comedi low-level driver"); | |
2008 | MODULE_LICENSE("GPL"); |