Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / staging / comedi / drivers / ni_mio_cs.c
CommitLineData
4fecf4a2
DS
1/*
2 comedi/drivers/ni_mio_cs.c
3 Hardware driver for NI PCMCIA MIO E series cards
4
5 COMEDI - Linux Control and Measurement Device Interface
6 Copyright (C) 1997-2000 David A. Schleef <ds@schleef.org>
7
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2 of the License, or
11 (at your option) any later version.
12
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
17
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software
20 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
21
22*/
23/*
24Driver: ni_mio_cs
25Description: National Instruments DAQCard E series
26Author: ds
27Status: works
28Devices: [National Instruments] DAQCard-AI-16XE-50 (ni_mio_cs),
29 DAQCard-AI-16E-4, DAQCard-6062E, DAQCard-6024E, DAQCard-6036E
30Updated: Thu Oct 23 19:43:17 CDT 2003
31
32See the notes in the ni_atmio.o driver.
33*/
34/*
35 The real guts of the driver is in ni_mio_common.c, which is
36 included by all the E series drivers.
37
38 References for specifications:
39
40 341080a.pdf DAQCard E Series Register Level Programmer Manual
41
42*/
43
44#include "../comedidev.h"
45
46#include <linux/delay.h>
4fecf4a2
DS
47
48#include "ni_stc.h"
49#include "8255.h"
50
4fecf4a2
DS
51#include <pcmcia/cs.h>
52#include <pcmcia/cistpl.h>
53#include <pcmcia/ds.h>
54
55#undef DEBUG
56
57#define ATMIO 1
58#undef PCIMIO
59
60/*
61 * AT specific setup
62 */
63
64#define NI_SIZE 0x20
65
66#define MAX_N_CALDACS 32
67
72a82280 68static const struct ni_board_struct ni_boards[] = {
68c3dbff
BP
69 {.device_id = 0x010d,
70 .name = "DAQCard-ai-16xe-50",
71 .n_adchan = 16,
72 .adbits = 16,
73 .ai_fifo_depth = 1024,
74 .alwaysdither = 0,
75 .gainlkup = ai_gain_8,
76 .ai_speed = 5000,
77 .n_aochan = 0,
78 .aobits = 0,
79 .ao_fifo_depth = 0,
80 .ao_unipolar = 0,
81 .num_p0_dio_channels = 8,
82 .has_8255 = 0,
83 .caldac = {dac8800, dac8043},
0a85b6f0 84 },
68c3dbff
BP
85 {.device_id = 0x010c,
86 .name = "DAQCard-ai-16e-4",
87 .n_adchan = 16,
88 .adbits = 12,
89 .ai_fifo_depth = 1024,
90 .alwaysdither = 0,
91 .gainlkup = ai_gain_16,
92 .ai_speed = 4000,
93 .n_aochan = 0,
94 .aobits = 0,
95 .ao_fifo_depth = 0,
96 .ao_unipolar = 0,
97 .num_p0_dio_channels = 8,
98 .has_8255 = 0,
99 .caldac = {mb88341}, /* verified */
0a85b6f0 100 },
68c3dbff
BP
101 {.device_id = 0x02c4,
102 .name = "DAQCard-6062E",
103 .n_adchan = 16,
104 .adbits = 12,
105 .ai_fifo_depth = 8192,
106 .alwaysdither = 0,
107 .gainlkup = ai_gain_16,
108 .ai_speed = 2000,
109 .n_aochan = 2,
110 .aobits = 12,
111 .ao_fifo_depth = 2048,
112 .ao_range_table = &range_bipolar10,
113 .ao_unipolar = 0,
114 .ao_speed = 1176,
115 .num_p0_dio_channels = 8,
116 .has_8255 = 0,
117 .caldac = {ad8804_debug}, /* verified */
0a85b6f0 118 },
68c3dbff
BP
119 {.device_id = 0x075e,
120 .name = "DAQCard-6024E", /* specs incorrect! */
121 .n_adchan = 16,
122 .adbits = 12,
123 .ai_fifo_depth = 1024,
124 .alwaysdither = 0,
ebe86223 125 .gainlkup = ai_gain_4,
68c3dbff
BP
126 .ai_speed = 5000,
127 .n_aochan = 2,
128 .aobits = 12,
129 .ao_fifo_depth = 0,
130 .ao_range_table = &range_bipolar10,
131 .ao_unipolar = 0,
132 .ao_speed = 1000000,
133 .num_p0_dio_channels = 8,
134 .has_8255 = 0,
135 .caldac = {ad8804_debug},
0a85b6f0 136 },
68c3dbff
BP
137 {.device_id = 0x0245,
138 .name = "DAQCard-6036E", /* specs incorrect! */
139 .n_adchan = 16,
140 .adbits = 16,
141 .ai_fifo_depth = 1024,
142 .alwaysdither = 1,
143 .gainlkup = ai_gain_4,
144 .ai_speed = 5000,
145 .n_aochan = 2,
146 .aobits = 16,
147 .ao_fifo_depth = 0,
148 .ao_range_table = &range_bipolar10,
149 .ao_unipolar = 0,
150 .ao_speed = 1000000,
151 .num_p0_dio_channels = 8,
152 .has_8255 = 0,
153 .caldac = {ad8804_debug},
0a85b6f0 154 },
4fecf4a2 155#if 0
68c3dbff
BP
156 {.device_id = 0x0000, /* unknown */
157 .name = "DAQCard-6715",
158 .n_adchan = 0,
159 .n_aochan = 8,
160 .aobits = 12,
161 .ao_671x = 8192,
162 .num_p0_dio_channels = 8,
163 .caldac = {mb88341, mb88341},
0a85b6f0 164 },
4fecf4a2
DS
165#endif
166 /* N.B. Update ni_mio_cs_ids[] when entries added above. */
167};
168
169#define interrupt_pin(a) 0
170
171#define IRQ_POLARITY 1
172
173#define NI_E_IRQ_FLAGS IRQF_SHARED
174
c7ef2298
BP
175struct ni_private {
176
4fecf4a2
DS
177 struct pcmcia_device *link;
178
c7ef2298
BP
179 NI_PRIVATE_COMMON};
180
181#define devpriv ((struct ni_private *)dev->private)
4fecf4a2
DS
182
183/* How we access registers */
184
f7cbd7aa 185#define ni_writel(a, b) (outl((a), (b)+dev->iobase))
4fecf4a2 186#define ni_readl(a) (inl((a)+dev->iobase))
f7cbd7aa 187#define ni_writew(a, b) (outw((a), (b)+dev->iobase))
4fecf4a2 188#define ni_readw(a) (inw((a)+dev->iobase))
f7cbd7aa 189#define ni_writeb(a, b) (outb((a), (b)+dev->iobase))
4fecf4a2
DS
190#define ni_readb(a) (inb((a)+dev->iobase))
191
192/* How we access windowed registers */
193
194/* We automatically take advantage of STC registers that can be
195 * read/written directly in the I/O space of the board. The
196 * DAQCard devices map the low 8 STC registers to iobase+addr*2. */
197
da91b269 198static void mio_cs_win_out(struct comedi_device *dev, uint16_t data, int addr)
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DS
199{
200 unsigned long flags;
201
5f74ea14 202 spin_lock_irqsave(&devpriv->window_lock, flags);
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DS
203 if (addr < 8) {
204 ni_writew(data, addr * 2);
205 } else {
206 ni_writew(addr, Window_Address);
207 ni_writew(data, Window_Data);
208 }
5f74ea14 209 spin_unlock_irqrestore(&devpriv->window_lock, flags);
4fecf4a2
DS
210}
211
da91b269 212static uint16_t mio_cs_win_in(struct comedi_device *dev, int addr)
4fecf4a2
DS
213{
214 unsigned long flags;
215 uint16_t ret;
216
5f74ea14 217 spin_lock_irqsave(&devpriv->window_lock, flags);
4fecf4a2
DS
218 if (addr < 8) {
219 ret = ni_readw(addr * 2);
220 } else {
221 ni_writew(addr, Window_Address);
222 ret = ni_readw(Window_Data);
223 }
5f74ea14 224 spin_unlock_irqrestore(&devpriv->window_lock, flags);
4fecf4a2
DS
225
226 return ret;
227}
228
0a85b6f0
MT
229static int mio_cs_attach(struct comedi_device *dev,
230 struct comedi_devconfig *it);
da91b269 231static int mio_cs_detach(struct comedi_device *dev);
139dfbdf 232static struct comedi_driver driver_ni_mio_cs = {
68c3dbff
BP
233 .driver_name = "ni_mio_cs",
234 .module = THIS_MODULE,
235 .attach = mio_cs_attach,
236 .detach = mio_cs_detach,
4fecf4a2
DS
237};
238
239#include "ni_mio_common.c"
240
0a85b6f0
MT
241static int ni_getboardtype(struct comedi_device *dev,
242 struct pcmcia_device *link);
4fecf4a2
DS
243
244/* clean up allocated resources */
245/* called when driver is removed */
da91b269 246static int mio_cs_detach(struct comedi_device *dev)
4fecf4a2
DS
247{
248 mio_common_detach(dev);
249
250 /* PCMCIA layer frees the IO region */
251
b055d0d3 252 if (dev->irq)
5f74ea14 253 free_irq(dev->irq, dev);
4fecf4a2
DS
254
255 return 0;
256}
257
258static void mio_cs_config(struct pcmcia_device *link);
259static void cs_release(struct pcmcia_device *link);
260static void cs_detach(struct pcmcia_device *);
261
262static struct pcmcia_device *cur_dev = NULL;
0a85b6f0 263
4fecf4a2
DS
264static int cs_attach(struct pcmcia_device *link)
265{
90abdc3b
DB
266 link->resource[0]->flags |= IO_DATA_PATH_WIDTH_16;
267 link->resource[0]->end = 16;
4fecf4a2
DS
268 link->conf.Attributes = CONF_ENABLE_IRQ;
269 link->conf.IntType = INT_MEMORY_AND_IO;
270
271 cur_dev = link;
272
273 mio_cs_config(link);
274
275 return 0;
276}
277
278static void cs_release(struct pcmcia_device *link)
279{
280 pcmcia_disable_device(link);
281}
282
283static void cs_detach(struct pcmcia_device *link)
284{
285 DPRINTK("cs_detach(link=%p)\n", link);
286
bfc2cc34 287 cs_release(link);
4fecf4a2
DS
288}
289
290static int mio_cs_suspend(struct pcmcia_device *link)
291{
292 DPRINTK("pm suspend\n");
293
294 return 0;
295}
296
297static int mio_cs_resume(struct pcmcia_device *link)
298{
299 DPRINTK("pm resume\n");
300 return 0;
301}
302
4fecf4a2 303
55a19b39
DB
304static int mio_pcmcia_config_loop(struct pcmcia_device *p_dev,
305 cistpl_cftable_entry_t *cfg,
306 cistpl_cftable_entry_t *dflt,
307 unsigned int vcc,
308 void *priv_data)
309{
310 int base, ret;
4fecf4a2 311
90abdc3b
DB
312 p_dev->resource[0]->end = cfg->io.win[0].len;
313 p_dev->io_lines = cfg->io.flags & CISTPL_IO_LINES_MASK;
4fecf4a2 314
55a19b39 315 for (base = 0x000; base < 0x400; base += 0x20) {
90abdc3b
DB
316 p_dev->resource[0]->start = base;
317 ret = pcmcia_request_io(p_dev);
55a19b39
DB
318 if (!ret)
319 return 0;
4fecf4a2 320 }
55a19b39
DB
321 return -ENODEV;
322}
4fecf4a2 323
4fecf4a2 324
55a19b39
DB
325static void mio_cs_config(struct pcmcia_device *link)
326{
327 int ret;
4fecf4a2 328
55a19b39 329 DPRINTK("mio_cs_config(link=%p)\n", link);
4fecf4a2 330
55a19b39
DB
331 ret = pcmcia_loop_config(link, mio_pcmcia_config_loop, NULL);
332 if (ret) {
333 dev_warn(&link->dev, "no configuration found\n");
334 return;
4fecf4a2
DS
335 }
336
eb14120f
DB
337 if (!link->irq)
338 dev_info(&link->dev, "no IRQ available\n");
4fecf4a2
DS
339
340 ret = pcmcia_request_configuration(link, &link->conf);
4fecf4a2
DS
341}
342
da91b269 343static int mio_cs_attach(struct comedi_device *dev, struct comedi_devconfig *it)
4fecf4a2
DS
344{
345 struct pcmcia_device *link;
346 unsigned int irq;
347 int ret;
348
349 DPRINTK("mio_cs_attach(dev=%p,it=%p)\n", dev, it);
350
351 link = cur_dev; /* XXX hack */
352 if (!link)
353 return -EIO;
354
355 dev->driver = &driver_ni_mio_cs;
9a017a91 356 dev->iobase = link->resource[0]->start;
4fecf4a2 357
eb14120f 358 irq = link->irq;
4fecf4a2
DS
359
360 printk("comedi%d: %s: DAQCard: io 0x%04lx, irq %u, ",
0a85b6f0 361 dev->minor, dev->driver->driver_name, dev->iobase, irq);
4fecf4a2
DS
362
363#if 0
364 {
365 int i;
366
367 printk(" board fingerprint:");
368 for (i = 0; i < 32; i += 2) {
369 printk(" %04x %02x", inw(dev->iobase + i),
0a85b6f0 370 inb(dev->iobase + i + 1));
4fecf4a2
DS
371 }
372 printk("\n");
373 printk(" board fingerprint (windowed):");
b055d0d3 374 for (i = 0; i < 10; i++)
4fecf4a2 375 printk(" 0x%04x", win_in(i));
4fecf4a2
DS
376 printk("\n");
377 }
378#endif
379
380 dev->board_ptr = ni_boards + ni_getboardtype(dev, link);
381
382 printk(" %s", boardtype.name);
383 dev->board_name = boardtype.name;
384
5f74ea14 385 ret = request_irq(irq, ni_E_interrupt, NI_E_IRQ_FLAGS,
0a85b6f0 386 "ni_mio_cs", dev);
c3744138 387 if (ret < 0) {
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DS
388 printk(" irq not available\n");
389 return -EINVAL;
390 }
391 dev->irq = irq;
392
393 /* allocate private area */
c3744138
BP
394 ret = ni_alloc_private(dev);
395 if (ret < 0)
4fecf4a2 396 return ret;
c3744138 397
4fecf4a2
DS
398 devpriv->stc_writew = &mio_cs_win_out;
399 devpriv->stc_readw = &mio_cs_win_in;
400 devpriv->stc_writel = &win_out2;
401 devpriv->stc_readl = &win_in2;
402
c3744138
BP
403 ret = ni_E_init(dev, it);
404
405 if (ret < 0)
4fecf4a2 406 return ret;
4fecf4a2
DS
407
408 return 0;
409}
410
0a85b6f0
MT
411static int ni_getboardtype(struct comedi_device *dev,
412 struct pcmcia_device *link)
4fecf4a2 413{
4fecf4a2
DS
414 int i;
415
4fecf4a2 416 for (i = 0; i < n_ni_boards; i++) {
55a19b39 417 if (ni_boards[i].device_id == link->card_id)
4fecf4a2 418 return i;
4fecf4a2
DS
419 }
420
55a19b39 421 printk("unknown board 0x%04x -- pretend it is a ", link->card_id);
4fecf4a2
DS
422
423 return 0;
424}
425
426#ifdef MODULE
427
4fecf4a2
DS
428static struct pcmcia_device_id ni_mio_cs_ids[] = {
429 PCMCIA_DEVICE_MANF_CARD(0x010b, 0x010d), /* DAQCard-ai-16xe-50 */
430 PCMCIA_DEVICE_MANF_CARD(0x010b, 0x010c), /* DAQCard-ai-16e-4 */
431 PCMCIA_DEVICE_MANF_CARD(0x010b, 0x02c4), /* DAQCard-6062E */
432 PCMCIA_DEVICE_MANF_CARD(0x010b, 0x075e), /* DAQCard-6024E */
433 PCMCIA_DEVICE_MANF_CARD(0x010b, 0x0245), /* DAQCard-6036E */
434 PCMCIA_DEVICE_NULL
435};
436
437MODULE_DEVICE_TABLE(pcmcia, ni_mio_cs_ids);
6c7f8196
AK
438MODULE_AUTHOR("David A. Schleef <ds@schleef.org>");
439MODULE_DESCRIPTION("Comedi driver for National Instruments DAQCard E series");
440MODULE_LICENSE("GPL");
4fecf4a2
DS
441
442struct pcmcia_driver ni_mio_cs_driver = {
443 .probe = &cs_attach,
444 .remove = &cs_detach,
445 .suspend = &mio_cs_suspend,
446 .resume = &mio_cs_resume,
447 .id_table = ni_mio_cs_ids,
448 .owner = THIS_MODULE,
449 .drv = {
1685e633 450 .name = "ni_mio_cs",
4fecf4a2
DS
451 },
452};
453
454int init_module(void)
455{
456 pcmcia_register_driver(&ni_mio_cs_driver);
457 comedi_driver_register(&driver_ni_mio_cs);
458 return 0;
459}
460
461void cleanup_module(void)
462{
463 pcmcia_unregister_driver(&ni_mio_cs_driver);
464#if 0
465 while (cur_dev != NULL)
466 cs_detach(cur_dev->handle);
467#endif
468 comedi_driver_unregister(&driver_ni_mio_cs);
469}
470#endif