2 * comedi/drivers/pcl812.c
4 * Author: Michal Dobes <dobes@tesnet.cz>
6 * hardware driver for Advantech cards
7 * card: PCL-812, PCL-812PG, PCL-813, PCL-813B
8 * driver: pcl812, pcl812pg, pcl813, pcl813b
10 * card: ACL-8112DG, ACL-8112HG, ACL-8112PG, ACL-8113, ACL-8216
11 * driver: acl8112dg, acl8112hg, acl8112pg, acl8113, acl8216
12 * and for ICP DAS cards
13 * card: ISO-813, A-821PGH, A-821PGL, A-821PGL-NDA, A-822PGH, A-822PGL,
14 * driver: iso813, a821pgh, a-821pgl, a-821pglnda, a822pgh, a822pgl,
15 * card: A-823PGH, A-823PGL, A-826PG
16 * driver: a823pgh, a823pgl, a826pg
20 Description: Advantech PCL-812/PG, PCL-813/B,
21 ADLink ACL-8112DG/HG/PG, ACL-8113, ACL-8216,
22 ICP DAS A-821PGH/PGL/PGL-NDA, A-822PGH/PGL, A-823PGH/PGL, A-826PG,
24 Author: Michal Dobes <dobes@tesnet.cz>
25 Devices: [Advantech] PCL-812 (pcl812), PCL-812PG (pcl812pg),
26 PCL-813 (pcl813), PCL-813B (pcl813b), [ADLink] ACL-8112DG (acl8112dg),
27 ACL-8112HG (acl8112hg), ACL-8113 (acl-8113), ACL-8216 (acl8216),
28 [ICP] ISO-813 (iso813), A-821PGH (a821pgh), A-821PGL (a821pgl),
29 A-821PGL-NDA (a821pclnda), A-822PGH (a822pgh), A-822PGL (a822pgl),
30 A-823PGH (a823pgh), A-823PGL (a823pgl), A-826PG (a826pg)
31 Updated: Mon, 06 Aug 2007 12:03:15 +0100
32 Status: works (I hope. My board fire up under my hands
33 and I cann't test all features.)
35 This driver supports insn and cmd interfaces. Some boards support only insn
36 becouse their hardware don't allow more (PCL-813/B, ACL-8113, ISO-813).
37 Data transfer over DMA is supported only when you measure only one
38 channel, this is too hardware limitation of these boards.
42 [1] - IRQ (0=disable, 2, 3, 4, 5, 6, 7; 10, 11, 12, 14, 15)
43 [2] - DMA (0=disable, 1, 3)
44 [3] - 0=trigger source is internal 8253 with 2MHz clock
45 1=trigger source is external
46 [4] - 0=A/D input range is +/-10V
47 1=A/D input range is +/-5V
48 2=A/D input range is +/-2.5V
49 3=A/D input range is +/-1.25V
50 4=A/D input range is +/-0.625V
51 5=A/D input range is +/-0.3125V
52 [5] - 0=D/A outputs 0-5V (internal reference -5V)
53 1=D/A outputs 0-10V (internal reference -10V)
54 2=D/A outputs unknow (external reference)
56 Options for PCL-812PG, ACL-8112PG:
58 [1] - IRQ (0=disable, 2, 3, 4, 5, 6, 7; 10, 11, 12, 14, 15)
59 [2] - DMA (0=disable, 1, 3)
60 [3] - 0=trigger source is internal 8253 with 2MHz clock
61 1=trigger source is external
62 [4] - 0=A/D have max +/-5V input
63 1=A/D have max +/-10V input
64 [5] - 0=D/A outputs 0-5V (internal reference -5V)
65 1=D/A outputs 0-10V (internal reference -10V)
66 2=D/A outputs unknow (external reference)
68 Options for ACL-8112DG/HG, A-822PGL/PGH, A-823PGL/PGH, ACL-8216, A-826PG:
70 [1] - IRQ (0=disable, 2, 3, 4, 5, 6, 7; 10, 11, 12, 14, 15)
71 [2] - DMA (0=disable, 1, 3)
72 [3] - 0=trigger source is internal 8253 with 2MHz clock
73 1=trigger source is external
74 [4] - 0=A/D channels are S.E.
75 1=A/D channels are DIFF
76 [5] - 0=D/A outputs 0-5V (internal reference -5V)
77 1=D/A outputs 0-10V (internal reference -10V)
78 2=D/A outputs unknow (external reference)
80 Options for A-821PGL/PGH:
82 [1] - IRQ (0=disable, 2, 3, 4, 5, 6, 7)
83 [2] - 0=A/D channels are S.E.
84 1=A/D channels are DIFF
85 [3] - 0=D/A output 0-5V (internal reference -5V)
86 1=D/A output 0-10V (internal reference -10V)
88 Options for A-821PGL-NDA:
90 [1] - IRQ (0=disable, 2, 3, 4, 5, 6, 7)
91 [2] - 0=A/D channels are S.E.
92 1=A/D channels are DIFF
99 [1] - 0= bipolar inputs
102 Options for ACL-8113, ISO-813:
104 [1] - 0= 10V bipolar inputs
105 1= 10V unipolar inputs
106 2= 20V bipolar inputs
107 3= 20V unipolar inputs
110 #include "../comedidev.h"
112 #include <linux/delay.h>
113 #include <linux/ioport.h>
118 #undef PCL812_EXTDEBUG /* if this is defined then a lot of messages is printed */
120 // hardware types of the cards
121 #define boardPCL812PG 0 /* and ACL-8112PG */
122 #define boardPCL813B 1
123 #define boardPCL812 2
124 #define boardPCL813 3
125 #define boardISO813 5
126 #define boardACL8113 6
127 #define boardACL8112 7 /* ACL-8112DG/HG, A-822PGL/PGH, A-823PGL/PGH */
128 #define boardACL8216 8 /* and ICP DAS A-826PG */
129 #define boardA821 9 /* PGH, PGL, PGL/NDA versions */
131 #define PCLx1x_IORANGE 16
133 #define PCL812_CTR0 0
134 #define PCL812_CTR1 1
135 #define PCL812_CTR2 2
136 #define PCL812_CTRCTL 3
137 #define PCL812_AD_LO 4
138 #define PCL812_DA1_LO 4
139 #define PCL812_AD_HI 5
140 #define PCL812_DA1_HI 5
141 #define PCL812_DA2_LO 6
142 #define PCL812_DI_LO 6
143 #define PCL812_DA2_HI 7
144 #define PCL812_DI_HI 7
145 #define PCL812_CLRINT 8
146 #define PCL812_GAIN 9
147 #define PCL812_MUX 10
148 #define PCL812_MODE 11
149 #define PCL812_CNTENABLE 10
150 #define PCL812_SOFTTRIG 12
151 #define PCL812_DO_LO 13
152 #define PCL812_DO_HI 14
154 #define PCL812_DRDY 0x10 /* =0 data ready */
156 #define ACL8216_STATUS 8 /* 5. bit signalize data ready */
158 #define ACL8216_DRDY 0x20 /* =0 data ready */
160 #define MAX_CHANLIST_LEN 256 /* length of scan list */
162 static const struct comedi_lrange range_pcl812pg_ai
= { 5, {
170 static const struct comedi_lrange range_pcl812pg2_ai
= { 5, {
178 static const struct comedi_lrange range812_bipolar1_25
= { 1, {
182 static const struct comedi_lrange range812_bipolar0_625
= { 1, {
186 static const struct comedi_lrange range812_bipolar0_3125
= { 1, {
190 static const struct comedi_lrange range_pcl813b_ai
= { 4, {
197 static const struct comedi_lrange range_pcl813b2_ai
= { 4, {
204 static const struct comedi_lrange range_iso813_1_ai
= { 5, {
212 static const struct comedi_lrange range_iso813_1_2_ai
= { 5, {
220 static const struct comedi_lrange range_iso813_2_ai
= { 4, {
227 static const struct comedi_lrange range_iso813_2_2_ai
= { 4, {
234 static const struct comedi_lrange range_acl8113_1_ai
= { 4, {
241 static const struct comedi_lrange range_acl8113_1_2_ai
= { 4, {
248 static const struct comedi_lrange range_acl8113_2_ai
= { 3, {
254 static const struct comedi_lrange range_acl8113_2_2_ai
= { 3, {
260 static const struct comedi_lrange range_acl8112dg_ai
= { 9, {
272 static const struct comedi_lrange range_acl8112hg_ai
= { 12, {
287 static const struct comedi_lrange range_a821pgh_ai
= { 4, {
295 static int pcl812_attach(struct comedi_device
* dev
, comedi_devconfig
* it
);
296 static int pcl812_detach(struct comedi_device
* dev
);
299 const char *name
; // board name
300 int board_type
; // type of this board
301 int n_aichan
; // num of AI chans in S.E.
302 int n_aichan_diff
; // DIFF num of chans
303 int n_aochan
; // num of DA chans
304 int n_dichan
; // DI and DO chans
306 int ai_maxdata
; // AI resolution
307 unsigned int ai_ns_min
; // max sample speed of card v ns
308 unsigned int i8254_osc_base
; // clock base
309 const struct comedi_lrange
*rangelist_ai
; // rangelist for A/D
310 const struct comedi_lrange
*rangelist_ao
; // rangelist for D/A
311 unsigned int IRQbits
; // allowed IRQ
312 unsigned char DMAbits
; // allowed DMA chans
313 unsigned char io_range
; // iorange for this board
314 unsigned char haveMPC508
; // 1=board use MPC508A multiplexor
317 static const boardtype boardtypes
[] = {
318 {"pcl812", boardPCL812
, 16, 0, 2, 16, 16, 0x0fff,
319 33000, 500, &range_bipolar10
, &range_unipolar5
,
320 0xdcfc, 0x0a, PCLx1x_IORANGE
, 0},
321 {"pcl812pg", boardPCL812PG
, 16, 0, 2, 16, 16, 0x0fff,
322 33000, 500, &range_pcl812pg_ai
, &range_unipolar5
,
323 0xdcfc, 0x0a, PCLx1x_IORANGE
, 0},
324 {"acl8112pg", boardPCL812PG
, 16, 0, 2, 16, 16, 0x0fff,
325 10000, 500, &range_pcl812pg_ai
, &range_unipolar5
,
326 0xdcfc, 0x0a, PCLx1x_IORANGE
, 0},
327 {"acl8112dg", boardACL8112
, 16, 8, 2, 16, 16, 0x0fff,
328 10000, 500, &range_acl8112dg_ai
, &range_unipolar5
,
329 0xdcfc, 0x0a, PCLx1x_IORANGE
, 1},
330 {"acl8112hg", boardACL8112
, 16, 8, 2, 16, 16, 0x0fff,
331 10000, 500, &range_acl8112hg_ai
, &range_unipolar5
,
332 0xdcfc, 0x0a, PCLx1x_IORANGE
, 1},
333 {"a821pgl", boardA821
, 16, 8, 1, 16, 16, 0x0fff,
334 10000, 500, &range_pcl813b_ai
, &range_unipolar5
,
335 0x000c, 0x00, PCLx1x_IORANGE
, 0},
336 {"a821pglnda", boardA821
, 16, 8, 0, 0, 0, 0x0fff,
337 10000, 500, &range_pcl813b_ai
, NULL
,
338 0x000c, 0x00, PCLx1x_IORANGE
, 0},
339 {"a821pgh", boardA821
, 16, 8, 1, 16, 16, 0x0fff,
340 10000, 500, &range_a821pgh_ai
, &range_unipolar5
,
341 0x000c, 0x00, PCLx1x_IORANGE
, 0},
342 {"a822pgl", boardACL8112
, 16, 8, 2, 16, 16, 0x0fff,
343 10000, 500, &range_acl8112dg_ai
, &range_unipolar5
,
344 0xdcfc, 0x0a, PCLx1x_IORANGE
, 0},
345 {"a822pgh", boardACL8112
, 16, 8, 2, 16, 16, 0x0fff,
346 10000, 500, &range_acl8112hg_ai
, &range_unipolar5
,
347 0xdcfc, 0x0a, PCLx1x_IORANGE
, 0},
348 {"a823pgl", boardACL8112
, 16, 8, 2, 16, 16, 0x0fff,
349 8000, 500, &range_acl8112dg_ai
, &range_unipolar5
,
350 0xdcfc, 0x0a, PCLx1x_IORANGE
, 0},
351 {"a823pgh", boardACL8112
, 16, 8, 2, 16, 16, 0x0fff,
352 8000, 500, &range_acl8112hg_ai
, &range_unipolar5
,
353 0xdcfc, 0x0a, PCLx1x_IORANGE
, 0},
354 {"pcl813", boardPCL813
, 32, 0, 0, 0, 0, 0x0fff,
355 0, 0, &range_pcl813b_ai
, NULL
,
356 0x0000, 0x00, PCLx1x_IORANGE
, 0},
357 {"pcl813b", boardPCL813B
, 32, 0, 0, 0, 0, 0x0fff,
358 0, 0, &range_pcl813b_ai
, NULL
,
359 0x0000, 0x00, PCLx1x_IORANGE
, 0},
360 {"acl8113", boardACL8113
, 32, 0, 0, 0, 0, 0x0fff,
361 0, 0, &range_acl8113_1_ai
, NULL
,
362 0x0000, 0x00, PCLx1x_IORANGE
, 0},
363 {"iso813", boardISO813
, 32, 0, 0, 0, 0, 0x0fff,
364 0, 0, &range_iso813_1_ai
, NULL
,
365 0x0000, 0x00, PCLx1x_IORANGE
, 0},
366 {"acl8216", boardACL8216
, 16, 8, 2, 16, 16, 0xffff,
367 10000, 500, &range_pcl813b2_ai
, &range_unipolar5
,
368 0xdcfc, 0x0a, PCLx1x_IORANGE
, 1},
369 {"a826pg", boardACL8216
, 16, 8, 2, 16, 16, 0xffff,
370 10000, 500, &range_pcl813b2_ai
, &range_unipolar5
,
371 0xdcfc, 0x0a, PCLx1x_IORANGE
, 0},
374 #define n_boardtypes (sizeof(boardtypes)/sizeof(boardtype))
375 #define this_board ((const boardtype *)dev->board_ptr)
377 static struct comedi_driver driver_pcl812
= {
378 driver_name
:"pcl812",
380 attach
:pcl812_attach
,
381 detach
:pcl812_detach
,
382 board_name
:&boardtypes
[0].name
,
383 num_names
:n_boardtypes
,
384 offset
:sizeof(boardtype
),
387 COMEDI_INITCLEANUP(driver_pcl812
);
390 unsigned char valid
; // =1 device is OK
391 unsigned char dma
; // >0 use dma ( usedDMA channel)
392 unsigned char use_diff
; // =1 diff inputs
393 unsigned char use_MPC
; // 1=board uses MPC508A multiplexor
394 unsigned char use_ext_trg
; // 1=board uses external trigger
395 unsigned char range_correction
; // =1 we must add 1 to range number
396 unsigned char old_chan_reg
; // lastly used chan/gain pair
397 unsigned char old_gain_reg
;
398 unsigned char mode_reg_int
; // there is stored INT number for some card
399 unsigned char ai_neverending
; // =1 we do unlimited AI
400 unsigned char ai_eos
; // 1=EOS wake up
401 unsigned char ai_dma
; // =1 we use DMA
402 unsigned int ai_poll_ptr
; // how many sampes transfer poll
403 unsigned int ai_scans
; // len of scanlist
404 unsigned int ai_act_scan
; // how many scans we finished
405 unsigned int ai_chanlist
[MAX_CHANLIST_LEN
]; // our copy of channel/range list
406 unsigned int ai_n_chan
; // how many channels is measured
407 unsigned int ai_flags
; // flaglist
408 unsigned int ai_data_len
; // len of data buffer
409 short *ai_data
; // data buffer
410 unsigned int ai_is16b
; // =1 we have 16 bit card
411 unsigned long dmabuf
[2]; // PTR to DMA buf
412 unsigned int dmapages
[2]; // how many pages we have allocated
413 unsigned int hwdmaptr
[2]; // HW PTR to DMA buf
414 unsigned int hwdmasize
[2]; // DMA buf size in bytes
415 unsigned int dmabytestomove
[2]; // how many bytes DMA transfer
416 int next_dma_buf
; // which buffer is next to use
417 unsigned int dma_runs_to_end
; // how many times we must switch DMA buffers
418 unsigned int last_dma_run
; // how many bytes to transfer on last DMA buffer
419 unsigned int max_812_ai_mode0_rangewait
; // setling time for gain
420 unsigned int ao_readback
[2]; // data for AO readback
423 #define devpriv ((pcl812_private *)dev->private)
426 ==============================================================================
428 static void start_pacer(struct comedi_device
* dev
, int mode
, unsigned int divisor1
,
429 unsigned int divisor2
);
430 static void setup_range_channel(struct comedi_device
* dev
, struct comedi_subdevice
* s
,
431 unsigned int rangechan
, char wait
);
432 static int pcl812_ai_cancel(struct comedi_device
* dev
, struct comedi_subdevice
* s
);
434 ==============================================================================
436 static int pcl812_ai_insn_read(struct comedi_device
* dev
, struct comedi_subdevice
* s
,
437 comedi_insn
* insn
, unsigned int * data
)
442 outb(devpriv
->mode_reg_int
| 1, dev
->iobase
+ PCL812_MODE
); /* select software trigger */
443 setup_range_channel(dev
, s
, insn
->chanspec
, 1); // select channel and renge
444 for (n
= 0; n
< insn
->n
; n
++) {
445 outb(255, dev
->iobase
+ PCL812_SOFTTRIG
); /* start conversion */
447 timeout
= 50; /* wait max 50us, it must finish under 33us */
449 hi
= inb(dev
->iobase
+ PCL812_AD_HI
);
450 if (!(hi
& PCL812_DRDY
))
455 ("comedi%d: pcl812: (%s at 0x%lx) A/D insn read timeout\n",
456 dev
->minor
, dev
->board_name
, dev
->iobase
);
457 outb(devpriv
->mode_reg_int
| 0, dev
->iobase
+ PCL812_MODE
);
461 data
[n
] = ((hi
& 0xf) << 8) | inb(dev
->iobase
+ PCL812_AD_LO
);
463 outb(devpriv
->mode_reg_int
| 0, dev
->iobase
+ PCL812_MODE
);
468 ==============================================================================
470 static int acl8216_ai_insn_read(struct comedi_device
* dev
, struct comedi_subdevice
* s
,
471 comedi_insn
* insn
, unsigned int * data
)
476 outb(1, dev
->iobase
+ PCL812_MODE
); /* select software trigger */
477 setup_range_channel(dev
, s
, insn
->chanspec
, 1); // select channel and renge
478 for (n
= 0; n
< insn
->n
; n
++) {
479 outb(255, dev
->iobase
+ PCL812_SOFTTRIG
); /* start conversion */
481 timeout
= 50; /* wait max 50us, it must finish under 33us */
483 if (!(inb(dev
->iobase
+ ACL8216_STATUS
) & ACL8216_DRDY
))
488 ("comedi%d: pcl812: (%s at 0x%lx) A/D insn read timeout\n",
489 dev
->minor
, dev
->board_name
, dev
->iobase
);
490 outb(0, dev
->iobase
+ PCL812_MODE
);
496 PCL812_AD_HI
) << 8) | inb(dev
->iobase
+
499 outb(0, dev
->iobase
+ PCL812_MODE
);
504 ==============================================================================
506 static int pcl812_ao_insn_write(struct comedi_device
* dev
, struct comedi_subdevice
* s
,
507 comedi_insn
* insn
, unsigned int * data
)
509 int chan
= CR_CHAN(insn
->chanspec
);
512 for (i
= 0; i
< insn
->n
; i
++) {
513 outb((data
[i
] & 0xff),
514 dev
->iobase
+ (chan
? PCL812_DA2_LO
: PCL812_DA1_LO
));
515 outb((data
[i
] >> 8) & 0x0f,
516 dev
->iobase
+ (chan
? PCL812_DA2_HI
: PCL812_DA1_HI
));
517 devpriv
->ao_readback
[chan
] = data
[i
];
524 ==============================================================================
526 static int pcl812_ao_insn_read(struct comedi_device
* dev
, struct comedi_subdevice
* s
,
527 comedi_insn
* insn
, unsigned int * data
)
529 int chan
= CR_CHAN(insn
->chanspec
);
532 for (i
= 0; i
< insn
->n
; i
++) {
533 data
[i
] = devpriv
->ao_readback
[chan
];
540 ==============================================================================
542 static int pcl812_di_insn_bits(struct comedi_device
* dev
, struct comedi_subdevice
* s
,
543 comedi_insn
* insn
, unsigned int * data
)
548 data
[1] = inb(dev
->iobase
+ PCL812_DI_LO
);
549 data
[1] |= inb(dev
->iobase
+ PCL812_DI_HI
) << 8;
555 ==============================================================================
557 static int pcl812_do_insn_bits(struct comedi_device
* dev
, struct comedi_subdevice
* s
,
558 comedi_insn
* insn
, unsigned int * data
)
564 s
->state
&= ~data
[0];
565 s
->state
|= data
[0] & data
[1];
566 outb(s
->state
& 0xff, dev
->iobase
+ PCL812_DO_LO
);
567 outb((s
->state
>> 8), dev
->iobase
+ PCL812_DO_HI
);
574 #ifdef PCL812_EXTDEBUG
576 ==============================================================================
578 static void pcl812_cmdtest_out(int e
, struct comedi_cmd
* cmd
)
580 rt_printk("pcl812 e=%d startsrc=%x scansrc=%x convsrc=%x\n", e
,
581 cmd
->start_src
, cmd
->scan_begin_src
, cmd
->convert_src
);
582 rt_printk("pcl812 e=%d startarg=%d scanarg=%d convarg=%d\n", e
,
583 cmd
->start_arg
, cmd
->scan_begin_arg
, cmd
->convert_arg
);
584 rt_printk("pcl812 e=%d stopsrc=%x scanend=%x\n", e
, cmd
->stop_src
,
586 rt_printk("pcl812 e=%d stoparg=%d scanendarg=%d chanlistlen=%d\n", e
,
587 cmd
->stop_arg
, cmd
->scan_end_arg
, cmd
->chanlist_len
);
592 ==============================================================================
594 static int pcl812_ai_cmdtest(struct comedi_device
* dev
, struct comedi_subdevice
* s
,
595 struct comedi_cmd
* cmd
)
598 int tmp
, divisor1
, divisor2
;
600 #ifdef PCL812_EXTDEBUG
601 rt_printk("pcl812 EDBG: BGN: pcl812_ai_cmdtest(...)\n");
602 pcl812_cmdtest_out(-1, cmd
);
604 /* step 1: make sure trigger sources are trivially valid */
606 tmp
= cmd
->start_src
;
607 cmd
->start_src
&= TRIG_NOW
;
608 if (!cmd
->start_src
|| tmp
!= cmd
->start_src
)
611 tmp
= cmd
->scan_begin_src
;
612 cmd
->scan_begin_src
&= TRIG_FOLLOW
;
613 if (!cmd
->scan_begin_src
|| tmp
!= cmd
->scan_begin_src
)
616 tmp
= cmd
->convert_src
;
617 if (devpriv
->use_ext_trg
) {
618 cmd
->convert_src
&= TRIG_EXT
;
620 cmd
->convert_src
&= TRIG_TIMER
;
622 if (!cmd
->convert_src
|| tmp
!= cmd
->convert_src
)
625 tmp
= cmd
->scan_end_src
;
626 cmd
->scan_end_src
&= TRIG_COUNT
;
627 if (!cmd
->scan_end_src
|| tmp
!= cmd
->scan_end_src
)
631 cmd
->stop_src
&= TRIG_COUNT
| TRIG_NONE
;
632 if (!cmd
->stop_src
|| tmp
!= cmd
->stop_src
)
636 #ifdef PCL812_EXTDEBUG
637 pcl812_cmdtest_out(1, cmd
);
639 ("pcl812 EDBG: BGN: pcl812_ai_cmdtest(...) err=%d ret=1\n",
645 /* step 2: make sure trigger sources are unique and mutually compatible */
647 if (cmd
->start_src
!= TRIG_NOW
) {
648 cmd
->start_src
= TRIG_NOW
;
652 if (cmd
->scan_begin_src
!= TRIG_FOLLOW
) {
653 cmd
->scan_begin_src
= TRIG_FOLLOW
;
657 if (devpriv
->use_ext_trg
) {
658 if (cmd
->convert_src
!= TRIG_EXT
) {
659 cmd
->convert_src
= TRIG_EXT
;
663 if (cmd
->convert_src
!= TRIG_TIMER
) {
664 cmd
->convert_src
= TRIG_TIMER
;
669 if (cmd
->scan_end_src
!= TRIG_COUNT
) {
670 cmd
->scan_end_src
= TRIG_COUNT
;
674 if (cmd
->stop_src
!= TRIG_NONE
&& cmd
->stop_src
!= TRIG_COUNT
)
678 #ifdef PCL812_EXTDEBUG
679 pcl812_cmdtest_out(2, cmd
);
681 ("pcl812 EDBG: BGN: pcl812_ai_cmdtest(...) err=%d ret=2\n",
687 /* step 3: make sure arguments are trivially compatible */
689 if (cmd
->start_arg
!= 0) {
694 if (cmd
->scan_begin_arg
!= 0) {
695 cmd
->scan_begin_arg
= 0;
699 if (cmd
->convert_src
== TRIG_TIMER
) {
700 if (cmd
->convert_arg
< this_board
->ai_ns_min
) {
701 cmd
->convert_arg
= this_board
->ai_ns_min
;
704 } else { /* TRIG_EXT */
705 if (cmd
->convert_arg
!= 0) {
706 cmd
->convert_arg
= 0;
711 if (!cmd
->chanlist_len
) {
712 cmd
->chanlist_len
= 1;
715 if (cmd
->chanlist_len
> MAX_CHANLIST_LEN
) {
716 cmd
->chanlist_len
= this_board
->n_aichan
;
719 if (cmd
->scan_end_arg
!= cmd
->chanlist_len
) {
720 cmd
->scan_end_arg
= cmd
->chanlist_len
;
723 if (cmd
->stop_src
== TRIG_COUNT
) {
724 if (!cmd
->stop_arg
) {
728 } else { /* TRIG_NONE */
729 if (cmd
->stop_arg
!= 0) {
736 #ifdef PCL812_EXTDEBUG
737 pcl812_cmdtest_out(3, cmd
);
739 ("pcl812 EDBG: BGN: pcl812_ai_cmdtest(...) err=%d ret=3\n",
745 /* step 4: fix up any arguments */
747 if (cmd
->convert_src
== TRIG_TIMER
) {
748 tmp
= cmd
->convert_arg
;
749 i8253_cascade_ns_to_timer(this_board
->i8254_osc_base
, &divisor1
,
750 &divisor2
, &cmd
->convert_arg
,
751 cmd
->flags
& TRIG_ROUND_MASK
);
752 if (cmd
->convert_arg
< this_board
->ai_ns_min
)
753 cmd
->convert_arg
= this_board
->ai_ns_min
;
754 if (tmp
!= cmd
->convert_arg
)
759 #ifdef PCL812_EXTDEBUG
761 ("pcl812 EDBG: BGN: pcl812_ai_cmdtest(...) err=%d ret=4\n",
771 ==============================================================================
773 static int pcl812_ai_cmd(struct comedi_device
* dev
, struct comedi_subdevice
* s
)
775 unsigned int divisor1
= 0, divisor2
= 0, i
, dma_flags
, bytes
;
776 struct comedi_cmd
*cmd
= &s
->async
->cmd
;
778 #ifdef PCL812_EXTDEBUG
779 rt_printk("pcl812 EDBG: BGN: pcl812_ai_cmd(...)\n");
782 if (cmd
->start_src
!= TRIG_NOW
)
784 if (cmd
->scan_begin_src
!= TRIG_FOLLOW
)
786 if (devpriv
->use_ext_trg
) {
787 if (cmd
->convert_src
!= TRIG_EXT
)
790 if (cmd
->convert_src
!= TRIG_TIMER
)
793 if (cmd
->scan_end_src
!= TRIG_COUNT
)
795 if (cmd
->scan_end_arg
!= cmd
->chanlist_len
)
797 if (cmd
->chanlist_len
> MAX_CHANLIST_LEN
)
800 if (cmd
->convert_src
== TRIG_TIMER
) {
801 if (cmd
->convert_arg
< this_board
->ai_ns_min
)
802 cmd
->convert_arg
= this_board
->ai_ns_min
;
803 i8253_cascade_ns_to_timer(this_board
->i8254_osc_base
,
804 &divisor1
, &divisor2
, &cmd
->convert_arg
,
805 cmd
->flags
& TRIG_ROUND_MASK
);
808 start_pacer(dev
, -1, 0, 0); // stop pacer
810 devpriv
->ai_n_chan
= cmd
->chanlist_len
;
811 memcpy(devpriv
->ai_chanlist
, cmd
->chanlist
,
812 sizeof(unsigned int) * cmd
->scan_end_arg
);
813 setup_range_channel(dev
, s
, devpriv
->ai_chanlist
[0], 1); // select first channel and range
815 if (devpriv
->dma
) { // check if we can use DMA transfer
817 for (i
= 1; i
< devpriv
->ai_n_chan
; i
++)
818 if (devpriv
->ai_chanlist
[0] != devpriv
->ai_chanlist
[i
]) {
819 devpriv
->ai_dma
= 0; // we cann't use DMA :-(
825 devpriv
->ai_flags
= cmd
->flags
;
826 devpriv
->ai_data_len
= s
->async
->prealloc_bufsz
;
827 devpriv
->ai_data
= s
->async
->prealloc_buf
;
828 if (cmd
->stop_src
== TRIG_COUNT
) {
829 devpriv
->ai_scans
= cmd
->stop_arg
;
830 devpriv
->ai_neverending
= 0;
832 devpriv
->ai_scans
= 0;
833 devpriv
->ai_neverending
= 1;
836 devpriv
->ai_act_scan
= 0;
837 devpriv
->ai_poll_ptr
= 0;
838 s
->async
->cur_chan
= 0;
840 if ((devpriv
->ai_flags
& TRIG_WAKE_EOS
)) { // don't we want wake up every scan?
842 if (devpriv
->ai_n_chan
== 1)
843 devpriv
->ai_dma
= 0; // DMA is useless for this situation
846 if (devpriv
->ai_dma
) {
847 if (devpriv
->ai_eos
) { // we use EOS, so adapt DMA buffer to one scan
848 devpriv
->dmabytestomove
[0] =
849 devpriv
->ai_n_chan
* sizeof(short);
850 devpriv
->dmabytestomove
[1] =
851 devpriv
->ai_n_chan
* sizeof(short);
852 devpriv
->dma_runs_to_end
= 1;
854 devpriv
->dmabytestomove
[0] = devpriv
->hwdmasize
[0];
855 devpriv
->dmabytestomove
[1] = devpriv
->hwdmasize
[1];
856 if (devpriv
->ai_data_len
< devpriv
->hwdmasize
[0])
857 devpriv
->dmabytestomove
[0] =
858 devpriv
->ai_data_len
;
859 if (devpriv
->ai_data_len
< devpriv
->hwdmasize
[1])
860 devpriv
->dmabytestomove
[1] =
861 devpriv
->ai_data_len
;
862 if (devpriv
->ai_neverending
) {
863 devpriv
->dma_runs_to_end
= 1;
865 bytes
= devpriv
->ai_n_chan
* devpriv
->ai_scans
* sizeof(short); // how many samples we must transfer?
866 devpriv
->dma_runs_to_end
= bytes
/ devpriv
->dmabytestomove
[0]; // how many DMA pages we must fill
867 devpriv
->last_dma_run
= bytes
% devpriv
->dmabytestomove
[0]; //on last dma transfer must be moved
868 if (devpriv
->dma_runs_to_end
== 0)
869 devpriv
->dmabytestomove
[0] =
870 devpriv
->last_dma_run
;
871 devpriv
->dma_runs_to_end
--;
874 if (devpriv
->dmabytestomove
[0] > devpriv
->hwdmasize
[0]) {
875 devpriv
->dmabytestomove
[0] = devpriv
->hwdmasize
[0];
878 if (devpriv
->dmabytestomove
[1] > devpriv
->hwdmasize
[1]) {
879 devpriv
->dmabytestomove
[1] = devpriv
->hwdmasize
[1];
882 devpriv
->next_dma_buf
= 0;
883 set_dma_mode(devpriv
->dma
, DMA_MODE_READ
);
884 dma_flags
= claim_dma_lock();
885 clear_dma_ff(devpriv
->dma
);
886 set_dma_addr(devpriv
->dma
, devpriv
->hwdmaptr
[0]);
887 set_dma_count(devpriv
->dma
, devpriv
->dmabytestomove
[0]);
888 release_dma_lock(dma_flags
);
889 enable_dma(devpriv
->dma
);
890 #ifdef PCL812_EXTDEBUG
892 ("pcl812 EDBG: DMA %d PTR 0x%0x/0x%0x LEN %u/%u EOS %d\n",
893 devpriv
->dma
, devpriv
->hwdmaptr
[0],
894 devpriv
->hwdmaptr
[1], devpriv
->dmabytestomove
[0],
895 devpriv
->dmabytestomove
[1], devpriv
->ai_eos
);
899 switch (cmd
->convert_src
) {
901 start_pacer(dev
, 1, divisor1
, divisor2
);
905 if (devpriv
->ai_dma
) {
906 outb(devpriv
->mode_reg_int
| 2, dev
->iobase
+ PCL812_MODE
); // let's go!
908 outb(devpriv
->mode_reg_int
| 6, dev
->iobase
+ PCL812_MODE
); // let's go!
911 #ifdef PCL812_EXTDEBUG
912 rt_printk("pcl812 EDBG: END: pcl812_ai_cmd(...)\n");
919 ==============================================================================
921 static irqreturn_t
interrupt_pcl812_ai_int(int irq
, void *d
)
924 unsigned int mask
, timeout
;
925 struct comedi_device
*dev
= d
;
926 struct comedi_subdevice
*s
= dev
->subdevices
+ 0;
928 s
->async
->events
= 0;
930 timeout
= 50; /* wait max 50us, it must finish under 33us */
931 if (devpriv
->ai_is16b
) {
934 if (!(inb(dev
->iobase
+ ACL8216_STATUS
) & ACL8216_DRDY
)) {
943 if (!(inb(dev
->iobase
+ PCL812_AD_HI
) & PCL812_DRDY
)) {
953 ("comedi%d: pcl812: (%s at 0x%lx) A/D cmd IRQ without DRDY!\n",
954 dev
->minor
, dev
->board_name
, dev
->iobase
);
955 pcl812_ai_cancel(dev
, s
);
956 s
->async
->events
|= COMEDI_CB_EOA
| COMEDI_CB_ERROR
;
957 comedi_event(dev
, s
);
961 comedi_buf_put(s
->async
,
962 ((inb(dev
->iobase
+ PCL812_AD_HI
) << 8) | inb(dev
->iobase
+
963 PCL812_AD_LO
)) & mask
);
965 outb(0, dev
->iobase
+ PCL812_CLRINT
); /* clear INT request */
967 if (s
->async
->cur_chan
== 0) { /* one scan done */
968 devpriv
->ai_act_scan
++;
969 if (!(devpriv
->ai_neverending
))
970 if (devpriv
->ai_act_scan
>= devpriv
->ai_scans
) { /* all data sampled */
971 pcl812_ai_cancel(dev
, s
);
972 s
->async
->events
|= COMEDI_CB_EOA
;
976 comedi_event(dev
, s
);
981 ==============================================================================
983 static void transfer_from_dma_buf(struct comedi_device
* dev
, struct comedi_subdevice
* s
,
984 short * ptr
, unsigned int bufptr
, unsigned int len
)
988 s
->async
->events
= 0;
989 for (i
= len
; i
; i
--) {
990 comedi_buf_put(s
->async
, ptr
[bufptr
++]); // get one sample
992 if (s
->async
->cur_chan
== 0) {
993 devpriv
->ai_act_scan
++;
994 if (!devpriv
->ai_neverending
)
995 if (devpriv
->ai_act_scan
>= devpriv
->ai_scans
) { /* all data sampled */
996 pcl812_ai_cancel(dev
, s
);
997 s
->async
->events
|= COMEDI_CB_EOA
;
1003 comedi_event(dev
, s
);
1007 ==============================================================================
1009 static irqreturn_t
interrupt_pcl812_ai_dma(int irq
, void *d
)
1011 struct comedi_device
*dev
= d
;
1012 struct comedi_subdevice
*s
= dev
->subdevices
+ 0;
1013 unsigned long dma_flags
;
1017 #ifdef PCL812_EXTDEBUG
1018 rt_printk("pcl812 EDBG: BGN: interrupt_pcl812_ai_dma(...)\n");
1020 ptr
= (short *) devpriv
->dmabuf
[devpriv
->next_dma_buf
];
1021 len
= (devpriv
->dmabytestomove
[devpriv
->next_dma_buf
] >> 1) -
1022 devpriv
->ai_poll_ptr
;
1024 devpriv
->next_dma_buf
= 1 - devpriv
->next_dma_buf
;
1025 disable_dma(devpriv
->dma
);
1026 set_dma_mode(devpriv
->dma
, DMA_MODE_READ
);
1027 dma_flags
= claim_dma_lock();
1028 set_dma_addr(devpriv
->dma
, devpriv
->hwdmaptr
[devpriv
->next_dma_buf
]);
1029 if (devpriv
->ai_eos
) {
1030 set_dma_count(devpriv
->dma
,
1031 devpriv
->dmabytestomove
[devpriv
->next_dma_buf
]);
1033 if (devpriv
->dma_runs_to_end
) {
1034 set_dma_count(devpriv
->dma
,
1035 devpriv
->dmabytestomove
[devpriv
->next_dma_buf
]);
1037 set_dma_count(devpriv
->dma
, devpriv
->last_dma_run
);
1039 devpriv
->dma_runs_to_end
--;
1041 release_dma_lock(dma_flags
);
1042 enable_dma(devpriv
->dma
);
1044 outb(0, dev
->iobase
+ PCL812_CLRINT
); /* clear INT request */
1046 bufptr
= devpriv
->ai_poll_ptr
;
1047 devpriv
->ai_poll_ptr
= 0;
1049 transfer_from_dma_buf(dev
, s
, ptr
, bufptr
, len
);
1051 #ifdef PCL812_EXTDEBUG
1052 rt_printk("pcl812 EDBG: END: interrupt_pcl812_ai_dma(...)\n");
1058 ==============================================================================
1060 static irqreturn_t
interrupt_pcl812(int irq
, void *d PT_REGS_ARG
)
1062 struct comedi_device
*dev
= d
;
1064 if (!dev
->attached
) {
1065 comedi_error(dev
, "spurious interrupt");
1068 if (devpriv
->ai_dma
) {
1069 return interrupt_pcl812_ai_dma(irq
, d
);
1071 return interrupt_pcl812_ai_int(irq
, d
);
1076 ==============================================================================
1078 static int pcl812_ai_poll(struct comedi_device
* dev
, struct comedi_subdevice
* s
)
1080 unsigned long flags
;
1081 unsigned int top1
, top2
, i
;
1083 if (!devpriv
->ai_dma
)
1084 return 0; // poll is valid only for DMA transfer
1086 comedi_spin_lock_irqsave(&dev
->spinlock
, flags
);
1088 for (i
= 0; i
< 10; i
++) {
1089 top1
= get_dma_residue(devpriv
->ai_dma
); // where is now DMA
1090 top2
= get_dma_residue(devpriv
->ai_dma
);
1096 comedi_spin_unlock_irqrestore(&dev
->spinlock
, flags
);
1100 top1
= devpriv
->dmabytestomove
[1 - devpriv
->next_dma_buf
] - top1
; // where is now DMA in buffer
1101 top1
>>= 1; // sample position
1102 top2
= top1
- devpriv
->ai_poll_ptr
;
1103 if (top2
< 1) { // no new samples
1104 comedi_spin_unlock_irqrestore(&dev
->spinlock
, flags
);
1108 transfer_from_dma_buf(dev
, s
,
1109 (void *)devpriv
->dmabuf
[1 - devpriv
->next_dma_buf
],
1110 devpriv
->ai_poll_ptr
, top2
);
1112 devpriv
->ai_poll_ptr
= top1
; // new buffer position
1114 comedi_spin_unlock_irqrestore(&dev
->spinlock
, flags
);
1116 return s
->async
->buf_write_count
- s
->async
->buf_read_count
;
1120 ==============================================================================
1122 static void setup_range_channel(struct comedi_device
* dev
, struct comedi_subdevice
* s
,
1123 unsigned int rangechan
, char wait
)
1125 unsigned char chan_reg
= CR_CHAN(rangechan
); // normal board
1126 unsigned char gain_reg
= CR_RANGE(rangechan
) + devpriv
->range_correction
; // gain index
1128 if ((chan_reg
== devpriv
->old_chan_reg
)
1129 && (gain_reg
== devpriv
->old_gain_reg
))
1130 return; // we can return, no change
1132 devpriv
->old_chan_reg
= chan_reg
;
1133 devpriv
->old_gain_reg
= gain_reg
;
1135 if (devpriv
->use_MPC
) {
1136 if (devpriv
->use_diff
) {
1137 chan_reg
= chan_reg
| 0x30; // DIFF inputs
1139 if (chan_reg
& 0x80) {
1140 chan_reg
= chan_reg
| 0x20; // SE inputs 8-15
1142 chan_reg
= chan_reg
| 0x10; // SE inputs 0-7
1147 outb(chan_reg
, dev
->iobase
+ PCL812_MUX
); /* select channel */
1148 outb(gain_reg
, dev
->iobase
+ PCL812_GAIN
); /* select gain */
1151 comedi_udelay(devpriv
->max_812_ai_mode0_rangewait
); // XXX this depends on selected range and can be very long for some high gain ranges!
1156 ==============================================================================
1158 static void start_pacer(struct comedi_device
* dev
, int mode
, unsigned int divisor1
,
1159 unsigned int divisor2
)
1161 #ifdef PCL812_EXTDEBUG
1162 rt_printk("pcl812 EDBG: BGN: start_pacer(%d,%u,%u)\n", mode
, divisor1
,
1165 outb(0xb4, dev
->iobase
+ PCL812_CTRCTL
);
1166 outb(0x74, dev
->iobase
+ PCL812_CTRCTL
);
1170 outb(divisor2
& 0xff, dev
->iobase
+ PCL812_CTR2
);
1171 outb((divisor2
>> 8) & 0xff, dev
->iobase
+ PCL812_CTR2
);
1172 outb(divisor1
& 0xff, dev
->iobase
+ PCL812_CTR1
);
1173 outb((divisor1
>> 8) & 0xff, dev
->iobase
+ PCL812_CTR1
);
1175 #ifdef PCL812_EXTDEBUG
1176 rt_printk("pcl812 EDBG: END: start_pacer(...)\n");
1181 ==============================================================================
1183 static void free_resources(struct comedi_device
* dev
)
1187 if (devpriv
->dmabuf
[0])
1188 free_pages(devpriv
->dmabuf
[0], devpriv
->dmapages
[0]);
1189 if (devpriv
->dmabuf
[1])
1190 free_pages(devpriv
->dmabuf
[1], devpriv
->dmapages
[1]);
1192 free_dma(devpriv
->dma
);
1195 comedi_free_irq(dev
->irq
, dev
);
1197 release_region(dev
->iobase
, this_board
->io_range
);
1201 ==============================================================================
1203 static int pcl812_ai_cancel(struct comedi_device
* dev
, struct comedi_subdevice
* s
)
1205 #ifdef PCL812_EXTDEBUG
1206 rt_printk("pcl812 EDBG: BGN: pcl812_ai_cancel(...)\n");
1208 if (devpriv
->ai_dma
)
1209 disable_dma(devpriv
->dma
);
1210 outb(0, dev
->iobase
+ PCL812_CLRINT
); /* clear INT request */
1211 outb(devpriv
->mode_reg_int
| 0, dev
->iobase
+ PCL812_MODE
); /* Stop A/D */
1212 start_pacer(dev
, -1, 0, 0); // stop 8254
1213 outb(0, dev
->iobase
+ PCL812_CLRINT
); /* clear INT request */
1214 #ifdef PCL812_EXTDEBUG
1215 rt_printk("pcl812 EDBG: END: pcl812_ai_cancel(...)\n");
1221 ==============================================================================
1223 static void pcl812_reset(struct comedi_device
* dev
)
1225 #ifdef PCL812_EXTDEBUG
1226 rt_printk("pcl812 EDBG: BGN: pcl812_reset(...)\n");
1228 outb(0, dev
->iobase
+ PCL812_MUX
);
1229 outb(0 + devpriv
->range_correction
, dev
->iobase
+ PCL812_GAIN
);
1230 devpriv
->old_chan_reg
= -1; // invalidate chain/gain memory
1231 devpriv
->old_gain_reg
= -1;
1233 switch (this_board
->board_type
) {
1238 outb(0, dev
->iobase
+ PCL812_DA2_LO
);
1239 outb(0, dev
->iobase
+ PCL812_DA2_HI
);
1241 outb(0, dev
->iobase
+ PCL812_DA1_LO
);
1242 outb(0, dev
->iobase
+ PCL812_DA1_HI
);
1243 start_pacer(dev
, -1, 0, 0); // stop 8254
1244 outb(0, dev
->iobase
+ PCL812_DO_HI
);
1245 outb(0, dev
->iobase
+ PCL812_DO_LO
);
1246 outb(devpriv
->mode_reg_int
| 0, dev
->iobase
+ PCL812_MODE
);
1247 outb(0, dev
->iobase
+ PCL812_CLRINT
);
1257 #ifdef PCL812_EXTDEBUG
1258 rt_printk("pcl812 EDBG: END: pcl812_reset(...)\n");
1263 ==============================================================================
1265 static int pcl812_attach(struct comedi_device
* dev
, comedi_devconfig
* it
)
1268 unsigned long iobase
;
1271 unsigned long pages
;
1272 struct comedi_subdevice
*s
;
1275 iobase
= it
->options
[0];
1276 printk("comedi%d: pcl812: board=%s, ioport=0x%03lx", dev
->minor
,
1277 this_board
->name
, iobase
);
1279 if (!request_region(iobase
, this_board
->io_range
, "pcl812")) {
1280 printk("I/O port conflict\n");
1283 dev
->iobase
= iobase
;
1285 if ((ret
= alloc_private(dev
, sizeof(pcl812_private
))) < 0) {
1286 free_resources(dev
);
1287 return ret
; /* Can't alloc mem */
1290 dev
->board_name
= this_board
->name
;
1293 if (this_board
->IRQbits
!= 0) { /* board support IRQ */
1294 irq
= it
->options
[1];
1295 if (irq
) { /* we want to use IRQ */
1296 if (((1 << irq
) & this_board
->IRQbits
) == 0) {
1297 printk(", IRQ %u is out of allowed range, DISABLING IT", irq
);
1298 irq
= 0; /* Bad IRQ */
1300 if (comedi_request_irq(irq
, interrupt_pcl812
, 0,
1302 printk(", unable to allocate IRQ %u, DISABLING IT", irq
);
1303 irq
= 0; /* Can't use IRQ */
1305 printk(", irq=%u", irq
);
1316 goto no_dma
; /* if we haven't IRQ, we can't use DMA */
1317 if (this_board
->DMAbits
!= 0) { /* board support DMA */
1318 dma
= it
->options
[2];
1319 if (((1 << dma
) & this_board
->DMAbits
) == 0) {
1320 printk(", DMA is out of allowed range, FAIL!\n");
1321 return -EINVAL
; /* Bad DMA */
1323 ret
= request_dma(dma
, "pcl812");
1325 printk(", unable to allocate DMA %u, FAIL!\n", dma
);
1326 return -EBUSY
; /* DMA isn't free */
1329 printk(", dma=%u", dma
);
1330 pages
= 1; /* we want 8KB */
1331 devpriv
->dmabuf
[0] = __get_dma_pages(GFP_KERNEL
, pages
);
1332 if (!devpriv
->dmabuf
[0]) {
1333 printk(", unable to allocate DMA buffer, FAIL!\n");
1334 /* maybe experiment with try_to_free_pages() will help .... */
1335 free_resources(dev
);
1336 return -EBUSY
; /* no buffer :-( */
1338 devpriv
->dmapages
[0] = pages
;
1339 devpriv
->hwdmaptr
[0] = virt_to_bus((void *)devpriv
->dmabuf
[0]);
1340 devpriv
->hwdmasize
[0] = PAGE_SIZE
* (1 << pages
);
1341 devpriv
->dmabuf
[1] = __get_dma_pages(GFP_KERNEL
, pages
);
1342 if (!devpriv
->dmabuf
[1]) {
1343 printk(", unable to allocate DMA buffer, FAIL!\n");
1344 free_resources(dev
);
1347 devpriv
->dmapages
[1] = pages
;
1348 devpriv
->hwdmaptr
[1] = virt_to_bus((void *)devpriv
->dmabuf
[1]);
1349 devpriv
->hwdmasize
[1] = PAGE_SIZE
* (1 << pages
);
1354 if (this_board
->n_aichan
> 0)
1356 if (this_board
->n_aochan
> 0)
1358 if (this_board
->n_dichan
> 0)
1360 if (this_board
->n_dochan
> 0)
1363 if ((ret
= alloc_subdevices(dev
, n_subdevices
)) < 0) {
1364 free_resources(dev
);
1371 if (this_board
->n_aichan
> 0) {
1372 s
= dev
->subdevices
+ subdev
;
1373 s
->type
= COMEDI_SUBD_AI
;
1374 s
->subdev_flags
= SDF_READABLE
;
1375 switch (this_board
->board_type
) {
1377 if (it
->options
[2] == 1) {
1378 s
->n_chan
= this_board
->n_aichan_diff
;
1379 s
->subdev_flags
|= SDF_DIFF
;
1380 devpriv
->use_diff
= 1;
1382 s
->n_chan
= this_board
->n_aichan
;
1383 s
->subdev_flags
|= SDF_GROUND
;
1388 if (it
->options
[4] == 1) {
1389 s
->n_chan
= this_board
->n_aichan_diff
;
1390 s
->subdev_flags
|= SDF_DIFF
;
1391 devpriv
->use_diff
= 1;
1393 s
->n_chan
= this_board
->n_aichan
;
1394 s
->subdev_flags
|= SDF_GROUND
;
1398 s
->n_chan
= this_board
->n_aichan
;
1399 s
->subdev_flags
|= SDF_GROUND
;
1402 s
->maxdata
= this_board
->ai_maxdata
;
1403 s
->len_chanlist
= MAX_CHANLIST_LEN
;
1404 s
->range_table
= this_board
->rangelist_ai
;
1405 if (this_board
->board_type
== boardACL8216
) {
1406 s
->insn_read
= acl8216_ai_insn_read
;
1408 s
->insn_read
= pcl812_ai_insn_read
;
1410 devpriv
->use_MPC
= this_board
->haveMPC508
;
1411 s
->cancel
= pcl812_ai_cancel
;
1413 dev
->read_subdev
= s
;
1414 s
->subdev_flags
|= SDF_CMD_READ
;
1415 s
->do_cmdtest
= pcl812_ai_cmdtest
;
1416 s
->do_cmd
= pcl812_ai_cmd
;
1417 s
->poll
= pcl812_ai_poll
;
1419 switch (this_board
->board_type
) {
1421 if (it
->options
[4] == 1)
1422 s
->range_table
= &range_pcl812pg2_ai
;
1425 switch (it
->options
[4]) {
1427 s
->range_table
= &range_bipolar10
;
1430 s
->range_table
= &range_bipolar5
;
1433 s
->range_table
= &range_bipolar2_5
;
1436 s
->range_table
= &range812_bipolar1_25
;
1439 s
->range_table
= &range812_bipolar0_625
;
1442 s
->range_table
= &range812_bipolar0_3125
;
1445 s
->range_table
= &range_bipolar10
;
1447 printk(", incorrect range number %d, changing to 0 (+/-10V)", it
->options
[4]);
1453 if (it
->options
[1] == 1)
1454 s
->range_table
= &range_pcl813b2_ai
;
1457 switch (it
->options
[1]) {
1459 s
->range_table
= &range_iso813_1_ai
;
1462 s
->range_table
= &range_iso813_1_2_ai
;
1465 s
->range_table
= &range_iso813_2_ai
;
1466 devpriv
->range_correction
= 1;
1469 s
->range_table
= &range_iso813_2_2_ai
;
1470 devpriv
->range_correction
= 1;
1473 s
->range_table
= &range_iso813_1_ai
;
1475 printk(", incorrect range number %d, changing to 0 ", it
->options
[1]);
1480 switch (it
->options
[1]) {
1482 s
->range_table
= &range_acl8113_1_ai
;
1485 s
->range_table
= &range_acl8113_1_2_ai
;
1488 s
->range_table
= &range_acl8113_2_ai
;
1489 devpriv
->range_correction
= 1;
1492 s
->range_table
= &range_acl8113_2_2_ai
;
1493 devpriv
->range_correction
= 1;
1496 s
->range_table
= &range_acl8113_1_ai
;
1498 printk(", incorrect range number %d, changing to 0 ", it
->options
[1]);
1507 if (this_board
->n_aochan
> 0) {
1508 s
= dev
->subdevices
+ subdev
;
1509 s
->type
= COMEDI_SUBD_AO
;
1510 s
->subdev_flags
= SDF_WRITABLE
| SDF_GROUND
;
1511 s
->n_chan
= this_board
->n_aochan
;
1513 s
->len_chanlist
= 1;
1514 s
->range_table
= this_board
->rangelist_ao
;
1515 s
->insn_read
= pcl812_ao_insn_read
;
1516 s
->insn_write
= pcl812_ao_insn_write
;
1517 switch (this_board
->board_type
) {
1519 if (it
->options
[3] == 1)
1520 s
->range_table
= &range_unipolar10
;
1526 if (it
->options
[5] == 1)
1527 s
->range_table
= &range_unipolar10
;
1528 if (it
->options
[5] == 2)
1529 s
->range_table
= &range_unknown
;
1536 if (this_board
->n_dichan
> 0) {
1537 s
= dev
->subdevices
+ subdev
;
1538 s
->type
= COMEDI_SUBD_DI
;
1539 s
->subdev_flags
= SDF_READABLE
;
1540 s
->n_chan
= this_board
->n_dichan
;
1542 s
->len_chanlist
= this_board
->n_dichan
;
1543 s
->range_table
= &range_digital
;
1544 s
->insn_bits
= pcl812_di_insn_bits
;
1548 /* digital output */
1549 if (this_board
->n_dochan
> 0) {
1550 s
= dev
->subdevices
+ subdev
;
1551 s
->type
= COMEDI_SUBD_DO
;
1552 s
->subdev_flags
= SDF_WRITABLE
;
1553 s
->n_chan
= this_board
->n_dochan
;
1555 s
->len_chanlist
= this_board
->n_dochan
;
1556 s
->range_table
= &range_digital
;
1557 s
->insn_bits
= pcl812_do_insn_bits
;
1561 switch (this_board
->board_type
) {
1563 devpriv
->ai_is16b
= 1;
1567 devpriv
->max_812_ai_mode0_rangewait
= 1;
1568 if (it
->options
[3] > 0)
1569 devpriv
->use_ext_trg
= 1; // we use external trigger
1571 devpriv
->max_812_ai_mode0_rangewait
= 1;
1572 devpriv
->mode_reg_int
= (irq
<< 4) & 0xf0;
1578 devpriv
->max_812_ai_mode0_rangewait
= 5; /* maybe there must by greatest timeout */
1591 ==============================================================================
1593 static int pcl812_detach(struct comedi_device
* dev
)
1596 #ifdef PCL812_EXTDEBUG
1597 rt_printk("comedi%d: pcl812: remove\n", dev
->minor
);
1599 free_resources(dev
);