xref: /kernel/linux/linux-5.10/sound/pci/pcxhr/pcxhr.c (revision 8c2ecf20)
1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 * Driver for Digigram pcxhr compatible soundcards
4 *
5 * main file with alsa callbacks
6 *
7 * Copyright (c) 2004 by Digigram <alsa@digigram.com>
8 */
9
10
11#include <linux/init.h>
12#include <linux/interrupt.h>
13#include <linux/slab.h>
14#include <linux/pci.h>
15#include <linux/dma-mapping.h>
16#include <linux/delay.h>
17#include <linux/module.h>
18#include <linux/mutex.h>
19
20#include <sound/core.h>
21#include <sound/initval.h>
22#include <sound/info.h>
23#include <sound/control.h>
24#include <sound/pcm.h>
25#include <sound/pcm_params.h>
26#include "pcxhr.h"
27#include "pcxhr_mixer.h"
28#include "pcxhr_hwdep.h"
29#include "pcxhr_core.h"
30#include "pcxhr_mix22.h"
31
32#define DRIVER_NAME "pcxhr"
33
34MODULE_AUTHOR("Markus Bollinger <bollinger@digigram.com>, "
35	      "Marc Titinger <titinger@digigram.com>");
36MODULE_DESCRIPTION("Digigram " DRIVER_NAME " " PCXHR_DRIVER_VERSION_STRING);
37MODULE_LICENSE("GPL");
38MODULE_SUPPORTED_DEVICE("{{Digigram," DRIVER_NAME "}}");
39
40static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;	/* Index 0-MAX */
41static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;	/* ID for this card */
42static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;/* Enable this card */
43static bool mono[SNDRV_CARDS];				/* capture  mono only */
44
45module_param_array(index, int, NULL, 0444);
46MODULE_PARM_DESC(index, "Index value for Digigram " DRIVER_NAME " soundcard");
47module_param_array(id, charp, NULL, 0444);
48MODULE_PARM_DESC(id, "ID string for Digigram " DRIVER_NAME " soundcard");
49module_param_array(enable, bool, NULL, 0444);
50MODULE_PARM_DESC(enable, "Enable Digigram " DRIVER_NAME " soundcard");
51module_param_array(mono, bool, NULL, 0444);
52MODULE_PARM_DESC(mono, "Mono capture mode (default is stereo)");
53
54enum {
55	PCI_ID_VX882HR,
56	PCI_ID_PCX882HR,
57	PCI_ID_VX881HR,
58	PCI_ID_PCX881HR,
59	PCI_ID_VX882E,
60	PCI_ID_PCX882E,
61	PCI_ID_VX881E,
62	PCI_ID_PCX881E,
63	PCI_ID_VX1222HR,
64	PCI_ID_PCX1222HR,
65	PCI_ID_VX1221HR,
66	PCI_ID_PCX1221HR,
67	PCI_ID_VX1222E,
68	PCI_ID_PCX1222E,
69	PCI_ID_VX1221E,
70	PCI_ID_PCX1221E,
71	PCI_ID_VX222HR,
72	PCI_ID_VX222E,
73	PCI_ID_PCX22HR,
74	PCI_ID_PCX22E,
75	PCI_ID_VX222HRMIC,
76	PCI_ID_VX222E_MIC,
77	PCI_ID_PCX924HR,
78	PCI_ID_PCX924E,
79	PCI_ID_PCX924HRMIC,
80	PCI_ID_PCX924E_MIC,
81	PCI_ID_VX442HR,
82	PCI_ID_PCX442HR,
83	PCI_ID_VX442E,
84	PCI_ID_PCX442E,
85	PCI_ID_VX822HR,
86	PCI_ID_PCX822HR,
87	PCI_ID_VX822E,
88	PCI_ID_PCX822E,
89	PCI_ID_LAST
90};
91
92static const struct pci_device_id pcxhr_ids[] = {
93	{ 0x10b5, 0x9656, 0x1369, 0xb001, 0, 0, PCI_ID_VX882HR, },
94	{ 0x10b5, 0x9656, 0x1369, 0xb101, 0, 0, PCI_ID_PCX882HR, },
95	{ 0x10b5, 0x9656, 0x1369, 0xb201, 0, 0, PCI_ID_VX881HR, },
96	{ 0x10b5, 0x9656, 0x1369, 0xb301, 0, 0, PCI_ID_PCX881HR, },
97	{ 0x10b5, 0x9056, 0x1369, 0xb021, 0, 0, PCI_ID_VX882E, },
98	{ 0x10b5, 0x9056, 0x1369, 0xb121, 0, 0, PCI_ID_PCX882E, },
99	{ 0x10b5, 0x9056, 0x1369, 0xb221, 0, 0, PCI_ID_VX881E, },
100	{ 0x10b5, 0x9056, 0x1369, 0xb321, 0, 0, PCI_ID_PCX881E, },
101	{ 0x10b5, 0x9656, 0x1369, 0xb401, 0, 0, PCI_ID_VX1222HR, },
102	{ 0x10b5, 0x9656, 0x1369, 0xb501, 0, 0, PCI_ID_PCX1222HR, },
103	{ 0x10b5, 0x9656, 0x1369, 0xb601, 0, 0, PCI_ID_VX1221HR, },
104	{ 0x10b5, 0x9656, 0x1369, 0xb701, 0, 0, PCI_ID_PCX1221HR, },
105	{ 0x10b5, 0x9056, 0x1369, 0xb421, 0, 0, PCI_ID_VX1222E, },
106	{ 0x10b5, 0x9056, 0x1369, 0xb521, 0, 0, PCI_ID_PCX1222E, },
107	{ 0x10b5, 0x9056, 0x1369, 0xb621, 0, 0, PCI_ID_VX1221E, },
108	{ 0x10b5, 0x9056, 0x1369, 0xb721, 0, 0, PCI_ID_PCX1221E, },
109	{ 0x10b5, 0x9056, 0x1369, 0xba01, 0, 0, PCI_ID_VX222HR, },
110	{ 0x10b5, 0x9056, 0x1369, 0xba21, 0, 0, PCI_ID_VX222E, },
111	{ 0x10b5, 0x9056, 0x1369, 0xbd01, 0, 0, PCI_ID_PCX22HR, },
112	{ 0x10b5, 0x9056, 0x1369, 0xbd21, 0, 0, PCI_ID_PCX22E, },
113	{ 0x10b5, 0x9056, 0x1369, 0xbc01, 0, 0, PCI_ID_VX222HRMIC, },
114	{ 0x10b5, 0x9056, 0x1369, 0xbc21, 0, 0, PCI_ID_VX222E_MIC, },
115	{ 0x10b5, 0x9056, 0x1369, 0xbb01, 0, 0, PCI_ID_PCX924HR, },
116	{ 0x10b5, 0x9056, 0x1369, 0xbb21, 0, 0, PCI_ID_PCX924E, },
117	{ 0x10b5, 0x9056, 0x1369, 0xbf01, 0, 0, PCI_ID_PCX924HRMIC, },
118	{ 0x10b5, 0x9056, 0x1369, 0xbf21, 0, 0, PCI_ID_PCX924E_MIC, },
119	{ 0x10b5, 0x9656, 0x1369, 0xd001, 0, 0, PCI_ID_VX442HR, },
120	{ 0x10b5, 0x9656, 0x1369, 0xd101, 0, 0, PCI_ID_PCX442HR, },
121	{ 0x10b5, 0x9056, 0x1369, 0xd021, 0, 0, PCI_ID_VX442E, },
122	{ 0x10b5, 0x9056, 0x1369, 0xd121, 0, 0, PCI_ID_PCX442E, },
123	{ 0x10b5, 0x9656, 0x1369, 0xd201, 0, 0, PCI_ID_VX822HR, },
124	{ 0x10b5, 0x9656, 0x1369, 0xd301, 0, 0, PCI_ID_PCX822HR, },
125	{ 0x10b5, 0x9056, 0x1369, 0xd221, 0, 0, PCI_ID_VX822E, },
126	{ 0x10b5, 0x9056, 0x1369, 0xd321, 0, 0, PCI_ID_PCX822E, },
127	{ 0, }
128};
129
130MODULE_DEVICE_TABLE(pci, pcxhr_ids);
131
132struct board_parameters {
133	char* board_name;
134	short playback_chips;
135	short capture_chips;
136	short fw_file_set;
137	short firmware_num;
138};
139static const struct board_parameters pcxhr_board_params[] = {
140[PCI_ID_VX882HR] =      { "VX882HR",      4, 4, 0, 41 },
141[PCI_ID_PCX882HR] =     { "PCX882HR",     4, 4, 0, 41 },
142[PCI_ID_VX881HR] =      { "VX881HR",      4, 4, 0, 41 },
143[PCI_ID_PCX881HR] =     { "PCX881HR",     4, 4, 0, 41 },
144[PCI_ID_VX882E] =       { "VX882e",       4, 4, 1, 41 },
145[PCI_ID_PCX882E] =      { "PCX882e",      4, 4, 1, 41 },
146[PCI_ID_VX881E] =       { "VX881e",       4, 4, 1, 41 },
147[PCI_ID_PCX881E] =      { "PCX881e",      4, 4, 1, 41 },
148[PCI_ID_VX1222HR] =     { "VX1222HR",     6, 1, 2, 42 },
149[PCI_ID_PCX1222HR] =    { "PCX1222HR",    6, 1, 2, 42 },
150[PCI_ID_VX1221HR] =     { "VX1221HR",     6, 1, 2, 42 },
151[PCI_ID_PCX1221HR] =    { "PCX1221HR",    6, 1, 2, 42 },
152[PCI_ID_VX1222E] =      { "VX1222e",      6, 1, 3, 42 },
153[PCI_ID_PCX1222E] =     { "PCX1222e",     6, 1, 3, 42 },
154[PCI_ID_VX1221E] =      { "VX1221e",      6, 1, 3, 42 },
155[PCI_ID_PCX1221E] =     { "PCX1221e",     6, 1, 3, 42 },
156[PCI_ID_VX222HR] =      { "VX222HR",      1, 1, 4, 44 },
157[PCI_ID_VX222E] =       { "VX222e",       1, 1, 4, 44 },
158[PCI_ID_PCX22HR] =      { "PCX22HR",      1, 0, 4, 44 },
159[PCI_ID_PCX22E] =       { "PCX22e",       1, 0, 4, 44 },
160[PCI_ID_VX222HRMIC] =   { "VX222HR-Mic",  1, 1, 5, 44 },
161[PCI_ID_VX222E_MIC] =   { "VX222e-Mic",   1, 1, 5, 44 },
162[PCI_ID_PCX924HR] =     { "PCX924HR",     1, 1, 5, 44 },
163[PCI_ID_PCX924E] =      { "PCX924e",      1, 1, 5, 44 },
164[PCI_ID_PCX924HRMIC] =  { "PCX924HR-Mic", 1, 1, 5, 44 },
165[PCI_ID_PCX924E_MIC] =  { "PCX924e-Mic",  1, 1, 5, 44 },
166[PCI_ID_VX442HR] =      { "VX442HR",      2, 2, 0, 41 },
167[PCI_ID_PCX442HR] =     { "PCX442HR",     2, 2, 0, 41 },
168[PCI_ID_VX442E] =       { "VX442e",       2, 2, 1, 41 },
169[PCI_ID_PCX442E] =      { "PCX442e",      2, 2, 1, 41 },
170[PCI_ID_VX822HR] =      { "VX822HR",      4, 1, 2, 42 },
171[PCI_ID_PCX822HR] =     { "PCX822HR",     4, 1, 2, 42 },
172[PCI_ID_VX822E] =       { "VX822e",       4, 1, 3, 42 },
173[PCI_ID_PCX822E] =      { "PCX822e",      4, 1, 3, 42 },
174};
175
176/* boards without hw AES1 and SRC onboard are all using fw_file_set==4 */
177/* VX222HR, VX222e, PCX22HR and PCX22e */
178#define PCXHR_BOARD_HAS_AES1(x) (x->fw_file_set != 4)
179/* some boards do not support 192kHz on digital AES input plugs */
180#define PCXHR_BOARD_AESIN_NO_192K(x) ((x->capture_chips == 0) || \
181				      (x->fw_file_set == 0)   || \
182				      (x->fw_file_set == 2))
183
184static int pcxhr_pll_freq_register(unsigned int freq, unsigned int* pllreg,
185				   unsigned int* realfreq)
186{
187	unsigned int reg;
188
189	if (freq < 6900 || freq > 110000)
190		return -EINVAL;
191	reg = (28224000 * 2) / freq;
192	reg = (reg - 1) / 2;
193	if (reg < 0x200)
194		*pllreg = reg + 0x800;
195	else if (reg < 0x400)
196		*pllreg = reg & 0x1ff;
197	else if (reg < 0x800) {
198		*pllreg = ((reg >> 1) & 0x1ff) + 0x200;
199		reg &= ~1;
200	} else {
201		*pllreg = ((reg >> 2) & 0x1ff) + 0x400;
202		reg &= ~3;
203	}
204	if (realfreq)
205		*realfreq = (28224000 / (reg + 1));
206	return 0;
207}
208
209
210#define PCXHR_FREQ_REG_MASK		0x1f
211#define PCXHR_FREQ_QUARTZ_48000		0x00
212#define PCXHR_FREQ_QUARTZ_24000		0x01
213#define PCXHR_FREQ_QUARTZ_12000		0x09
214#define PCXHR_FREQ_QUARTZ_32000		0x08
215#define PCXHR_FREQ_QUARTZ_16000		0x04
216#define PCXHR_FREQ_QUARTZ_8000		0x0c
217#define PCXHR_FREQ_QUARTZ_44100		0x02
218#define PCXHR_FREQ_QUARTZ_22050		0x0a
219#define PCXHR_FREQ_QUARTZ_11025		0x06
220#define PCXHR_FREQ_PLL			0x05
221#define PCXHR_FREQ_QUARTZ_192000	0x10
222#define PCXHR_FREQ_QUARTZ_96000		0x18
223#define PCXHR_FREQ_QUARTZ_176400	0x14
224#define PCXHR_FREQ_QUARTZ_88200		0x1c
225#define PCXHR_FREQ_QUARTZ_128000	0x12
226#define PCXHR_FREQ_QUARTZ_64000		0x1a
227
228#define PCXHR_FREQ_WORD_CLOCK		0x0f
229#define PCXHR_FREQ_SYNC_AES		0x0e
230#define PCXHR_FREQ_AES_1		0x07
231#define PCXHR_FREQ_AES_2		0x0b
232#define PCXHR_FREQ_AES_3		0x03
233#define PCXHR_FREQ_AES_4		0x0d
234
235static int pcxhr_get_clock_reg(struct pcxhr_mgr *mgr, unsigned int rate,
236			       unsigned int *reg, unsigned int *freq)
237{
238	unsigned int val, realfreq, pllreg;
239	struct pcxhr_rmh rmh;
240	int err;
241
242	realfreq = rate;
243	switch (mgr->use_clock_type) {
244	case PCXHR_CLOCK_TYPE_INTERNAL :	/* clock by quartz or pll */
245		switch (rate) {
246		case 48000 :	val = PCXHR_FREQ_QUARTZ_48000;	break;
247		case 24000 :	val = PCXHR_FREQ_QUARTZ_24000;	break;
248		case 12000 :	val = PCXHR_FREQ_QUARTZ_12000;	break;
249		case 32000 :	val = PCXHR_FREQ_QUARTZ_32000;	break;
250		case 16000 :	val = PCXHR_FREQ_QUARTZ_16000;	break;
251		case 8000 :	val = PCXHR_FREQ_QUARTZ_8000;	break;
252		case 44100 :	val = PCXHR_FREQ_QUARTZ_44100;	break;
253		case 22050 :	val = PCXHR_FREQ_QUARTZ_22050;	break;
254		case 11025 :	val = PCXHR_FREQ_QUARTZ_11025;	break;
255		case 192000 :	val = PCXHR_FREQ_QUARTZ_192000;	break;
256		case 96000 :	val = PCXHR_FREQ_QUARTZ_96000;	break;
257		case 176400 :	val = PCXHR_FREQ_QUARTZ_176400;	break;
258		case 88200 :	val = PCXHR_FREQ_QUARTZ_88200;	break;
259		case 128000 :	val = PCXHR_FREQ_QUARTZ_128000;	break;
260		case 64000 :	val = PCXHR_FREQ_QUARTZ_64000;	break;
261		default :
262			val = PCXHR_FREQ_PLL;
263			/* get the value for the pll register */
264			err = pcxhr_pll_freq_register(rate, &pllreg, &realfreq);
265			if (err)
266				return err;
267			pcxhr_init_rmh(&rmh, CMD_ACCESS_IO_WRITE);
268			rmh.cmd[0] |= IO_NUM_REG_GENCLK;
269			rmh.cmd[1]  = pllreg & MASK_DSP_WORD;
270			rmh.cmd[2]  = pllreg >> 24;
271			rmh.cmd_len = 3;
272			err = pcxhr_send_msg(mgr, &rmh);
273			if (err < 0) {
274				dev_err(&mgr->pci->dev,
275					   "error CMD_ACCESS_IO_WRITE "
276					   "for PLL register : %x!\n", err);
277				return err;
278			}
279		}
280		break;
281	case PCXHR_CLOCK_TYPE_WORD_CLOCK:
282		val = PCXHR_FREQ_WORD_CLOCK;
283		break;
284	case PCXHR_CLOCK_TYPE_AES_SYNC:
285		val = PCXHR_FREQ_SYNC_AES;
286		break;
287	case PCXHR_CLOCK_TYPE_AES_1:
288		val = PCXHR_FREQ_AES_1;
289		break;
290	case PCXHR_CLOCK_TYPE_AES_2:
291		val = PCXHR_FREQ_AES_2;
292		break;
293	case PCXHR_CLOCK_TYPE_AES_3:
294		val = PCXHR_FREQ_AES_3;
295		break;
296	case PCXHR_CLOCK_TYPE_AES_4:
297		val = PCXHR_FREQ_AES_4;
298		break;
299	default:
300		return -EINVAL;
301	}
302	*reg = val;
303	*freq = realfreq;
304	return 0;
305}
306
307
308static int pcxhr_sub_set_clock(struct pcxhr_mgr *mgr,
309			       unsigned int rate,
310			       int *changed)
311{
312	unsigned int val, realfreq, speed;
313	struct pcxhr_rmh rmh;
314	int err;
315
316	err = pcxhr_get_clock_reg(mgr, rate, &val, &realfreq);
317	if (err)
318		return err;
319
320	/* codec speed modes */
321	if (rate < 55000)
322		speed = 0;	/* single speed */
323	else if (rate < 100000)
324		speed = 1;	/* dual speed */
325	else
326		speed = 2;	/* quad speed */
327	if (mgr->codec_speed != speed) {
328		pcxhr_init_rmh(&rmh, CMD_ACCESS_IO_WRITE); /* mute outputs */
329		rmh.cmd[0] |= IO_NUM_REG_MUTE_OUT;
330		if (DSP_EXT_CMD_SET(mgr)) {
331			rmh.cmd[1]  = 1;
332			rmh.cmd_len = 2;
333		}
334		err = pcxhr_send_msg(mgr, &rmh);
335		if (err)
336			return err;
337
338		pcxhr_init_rmh(&rmh, CMD_ACCESS_IO_WRITE); /* set speed ratio */
339		rmh.cmd[0] |= IO_NUM_SPEED_RATIO;
340		rmh.cmd[1] = speed;
341		rmh.cmd_len = 2;
342		err = pcxhr_send_msg(mgr, &rmh);
343		if (err)
344			return err;
345	}
346	/* set the new frequency */
347	dev_dbg(&mgr->pci->dev, "clock register : set %x\n", val);
348	err = pcxhr_write_io_num_reg_cont(mgr, PCXHR_FREQ_REG_MASK,
349					  val, changed);
350	if (err)
351		return err;
352
353	mgr->sample_rate_real = realfreq;
354	mgr->cur_clock_type = mgr->use_clock_type;
355
356	/* unmute after codec speed modes */
357	if (mgr->codec_speed != speed) {
358		pcxhr_init_rmh(&rmh, CMD_ACCESS_IO_READ); /* unmute outputs */
359		rmh.cmd[0] |= IO_NUM_REG_MUTE_OUT;
360		if (DSP_EXT_CMD_SET(mgr)) {
361			rmh.cmd[1]  = 1;
362			rmh.cmd_len = 2;
363		}
364		err = pcxhr_send_msg(mgr, &rmh);
365		if (err)
366			return err;
367		mgr->codec_speed = speed;	/* save new codec speed */
368	}
369
370	dev_dbg(&mgr->pci->dev, "pcxhr_sub_set_clock to %dHz (realfreq=%d)\n",
371		    rate, realfreq);
372	return 0;
373}
374
375#define PCXHR_MODIFY_CLOCK_S_BIT	0x04
376
377#define PCXHR_IRQ_TIMER_FREQ		92000
378#define PCXHR_IRQ_TIMER_PERIOD		48
379
380int pcxhr_set_clock(struct pcxhr_mgr *mgr, unsigned int rate)
381{
382	struct pcxhr_rmh rmh;
383	int err, changed;
384
385	if (rate == 0)
386		return 0; /* nothing to do */
387
388	if (mgr->is_hr_stereo)
389		err = hr222_sub_set_clock(mgr, rate, &changed);
390	else
391		err = pcxhr_sub_set_clock(mgr, rate, &changed);
392
393	if (err)
394		return err;
395
396	if (changed) {
397		pcxhr_init_rmh(&rmh, CMD_MODIFY_CLOCK);
398		rmh.cmd[0] |= PCXHR_MODIFY_CLOCK_S_BIT; /* resync fifos  */
399		if (rate < PCXHR_IRQ_TIMER_FREQ)
400			rmh.cmd[1] = PCXHR_IRQ_TIMER_PERIOD;
401		else
402			rmh.cmd[1] = PCXHR_IRQ_TIMER_PERIOD * 2;
403		rmh.cmd[2] = rate;
404		rmh.cmd_len = 3;
405		err = pcxhr_send_msg(mgr, &rmh);
406		if (err)
407			return err;
408	}
409	return 0;
410}
411
412
413static int pcxhr_sub_get_external_clock(struct pcxhr_mgr *mgr,
414					enum pcxhr_clock_type clock_type,
415					int *sample_rate)
416{
417	struct pcxhr_rmh rmh;
418	unsigned char reg;
419	int err, rate;
420
421	switch (clock_type) {
422	case PCXHR_CLOCK_TYPE_WORD_CLOCK:
423		reg = REG_STATUS_WORD_CLOCK;
424		break;
425	case PCXHR_CLOCK_TYPE_AES_SYNC:
426		reg = REG_STATUS_AES_SYNC;
427		break;
428	case PCXHR_CLOCK_TYPE_AES_1:
429		reg = REG_STATUS_AES_1;
430		break;
431	case PCXHR_CLOCK_TYPE_AES_2:
432		reg = REG_STATUS_AES_2;
433		break;
434	case PCXHR_CLOCK_TYPE_AES_3:
435		reg = REG_STATUS_AES_3;
436		break;
437	case PCXHR_CLOCK_TYPE_AES_4:
438		reg = REG_STATUS_AES_4;
439		break;
440	default:
441		return -EINVAL;
442	}
443	pcxhr_init_rmh(&rmh, CMD_ACCESS_IO_READ);
444	rmh.cmd_len = 2;
445	rmh.cmd[0] |= IO_NUM_REG_STATUS;
446	if (mgr->last_reg_stat != reg) {
447		rmh.cmd[1]  = reg;
448		err = pcxhr_send_msg(mgr, &rmh);
449		if (err)
450			return err;
451		udelay(100);	/* wait minimum 2 sample_frames at 32kHz ! */
452		mgr->last_reg_stat = reg;
453	}
454	rmh.cmd[1]  = REG_STATUS_CURRENT;
455	err = pcxhr_send_msg(mgr, &rmh);
456	if (err)
457		return err;
458	switch (rmh.stat[1] & 0x0f) {
459	case REG_STATUS_SYNC_32000 :	rate = 32000; break;
460	case REG_STATUS_SYNC_44100 :	rate = 44100; break;
461	case REG_STATUS_SYNC_48000 :	rate = 48000; break;
462	case REG_STATUS_SYNC_64000 :	rate = 64000; break;
463	case REG_STATUS_SYNC_88200 :	rate = 88200; break;
464	case REG_STATUS_SYNC_96000 :	rate = 96000; break;
465	case REG_STATUS_SYNC_128000 :	rate = 128000; break;
466	case REG_STATUS_SYNC_176400 :	rate = 176400; break;
467	case REG_STATUS_SYNC_192000 :	rate = 192000; break;
468	default: rate = 0;
469	}
470	dev_dbg(&mgr->pci->dev, "External clock is at %d Hz\n", rate);
471	*sample_rate = rate;
472	return 0;
473}
474
475
476int pcxhr_get_external_clock(struct pcxhr_mgr *mgr,
477			     enum pcxhr_clock_type clock_type,
478			     int *sample_rate)
479{
480	if (mgr->is_hr_stereo)
481		return hr222_get_external_clock(mgr, clock_type,
482						sample_rate);
483	else
484		return pcxhr_sub_get_external_clock(mgr, clock_type,
485						    sample_rate);
486}
487
488/*
489 *  start or stop playback/capture substream
490 */
491static int pcxhr_set_stream_state(struct snd_pcxhr *chip,
492				  struct pcxhr_stream *stream)
493{
494	int err;
495	struct pcxhr_rmh rmh;
496	int stream_mask, start;
497
498	if (stream->status == PCXHR_STREAM_STATUS_SCHEDULE_RUN)
499		start = 1;
500	else {
501		if (stream->status != PCXHR_STREAM_STATUS_SCHEDULE_STOP) {
502			dev_err(chip->card->dev,
503				"pcxhr_set_stream_state CANNOT be stopped\n");
504			return -EINVAL;
505		}
506		start = 0;
507	}
508	if (!stream->substream)
509		return -EINVAL;
510
511	stream->timer_abs_periods = 0;
512	stream->timer_period_frag = 0;	/* reset theoretical stream pos */
513	stream->timer_buf_periods = 0;
514	stream->timer_is_synced = 0;
515
516	stream_mask =
517	  stream->pipe->is_capture ? 1 : 1<<stream->substream->number;
518
519	pcxhr_init_rmh(&rmh, start ? CMD_START_STREAM : CMD_STOP_STREAM);
520	pcxhr_set_pipe_cmd_params(&rmh, stream->pipe->is_capture,
521				  stream->pipe->first_audio, 0, stream_mask);
522
523	chip = snd_pcm_substream_chip(stream->substream);
524
525	err = pcxhr_send_msg(chip->mgr, &rmh);
526	if (err)
527		dev_err(chip->card->dev,
528			"ERROR pcxhr_set_stream_state err=%x;\n", err);
529	stream->status =
530	  start ? PCXHR_STREAM_STATUS_STARTED : PCXHR_STREAM_STATUS_STOPPED;
531	return err;
532}
533
534#define HEADER_FMT_BASE_LIN		0xfed00000
535#define HEADER_FMT_BASE_FLOAT		0xfad00000
536#define HEADER_FMT_INTEL		0x00008000
537#define HEADER_FMT_24BITS		0x00004000
538#define HEADER_FMT_16BITS		0x00002000
539#define HEADER_FMT_UPTO11		0x00000200
540#define HEADER_FMT_UPTO32		0x00000100
541#define HEADER_FMT_MONO			0x00000080
542
543static int pcxhr_set_format(struct pcxhr_stream *stream)
544{
545	int err, is_capture, sample_rate, stream_num;
546	struct snd_pcxhr *chip;
547	struct pcxhr_rmh rmh;
548	unsigned int header;
549
550	chip = snd_pcm_substream_chip(stream->substream);
551	switch (stream->format) {
552	case SNDRV_PCM_FORMAT_U8:
553		header = HEADER_FMT_BASE_LIN;
554		break;
555	case SNDRV_PCM_FORMAT_S16_LE:
556		header = HEADER_FMT_BASE_LIN |
557			 HEADER_FMT_16BITS | HEADER_FMT_INTEL;
558		break;
559	case SNDRV_PCM_FORMAT_S16_BE:
560		header = HEADER_FMT_BASE_LIN | HEADER_FMT_16BITS;
561		break;
562	case SNDRV_PCM_FORMAT_S24_3LE:
563		header = HEADER_FMT_BASE_LIN |
564			 HEADER_FMT_24BITS | HEADER_FMT_INTEL;
565		break;
566	case SNDRV_PCM_FORMAT_S24_3BE:
567		header = HEADER_FMT_BASE_LIN | HEADER_FMT_24BITS;
568		break;
569	case SNDRV_PCM_FORMAT_FLOAT_LE:
570		header = HEADER_FMT_BASE_FLOAT | HEADER_FMT_INTEL;
571		break;
572	default:
573		dev_err(chip->card->dev,
574			"error pcxhr_set_format() : unknown format\n");
575		return -EINVAL;
576	}
577
578	sample_rate = chip->mgr->sample_rate;
579	if (sample_rate <= 32000 && sample_rate !=0) {
580		if (sample_rate <= 11025)
581			header |= HEADER_FMT_UPTO11;
582		else
583			header |= HEADER_FMT_UPTO32;
584	}
585	if (stream->channels == 1)
586		header |= HEADER_FMT_MONO;
587
588	is_capture = stream->pipe->is_capture;
589	stream_num = is_capture ? 0 : stream->substream->number;
590
591	pcxhr_init_rmh(&rmh, is_capture ?
592		       CMD_FORMAT_STREAM_IN : CMD_FORMAT_STREAM_OUT);
593	pcxhr_set_pipe_cmd_params(&rmh, is_capture, stream->pipe->first_audio,
594				  stream_num, 0);
595	if (is_capture) {
596		/* bug with old dsp versions: */
597		/* bit 12 also sets the format of the playback stream */
598		if (DSP_EXT_CMD_SET(chip->mgr))
599			rmh.cmd[0] |= 1<<10;
600		else
601			rmh.cmd[0] |= 1<<12;
602	}
603	rmh.cmd[1] = 0;
604	rmh.cmd_len = 2;
605	if (DSP_EXT_CMD_SET(chip->mgr)) {
606		/* add channels and set bit 19 if channels>2 */
607		rmh.cmd[1] = stream->channels;
608		if (!is_capture) {
609			/* playback : add channel mask to command */
610			rmh.cmd[2] = (stream->channels == 1) ? 0x01 : 0x03;
611			rmh.cmd_len = 3;
612		}
613	}
614	rmh.cmd[rmh.cmd_len++] = header >> 8;
615	rmh.cmd[rmh.cmd_len++] = (header & 0xff) << 16;
616	err = pcxhr_send_msg(chip->mgr, &rmh);
617	if (err)
618		dev_err(chip->card->dev,
619			"ERROR pcxhr_set_format err=%x;\n", err);
620	return err;
621}
622
623static int pcxhr_update_r_buffer(struct pcxhr_stream *stream)
624{
625	int err, is_capture, stream_num;
626	struct pcxhr_rmh rmh;
627	struct snd_pcm_substream *subs = stream->substream;
628	struct snd_pcxhr *chip = snd_pcm_substream_chip(subs);
629
630	is_capture = (subs->stream == SNDRV_PCM_STREAM_CAPTURE);
631	stream_num = is_capture ? 0 : subs->number;
632
633	dev_dbg(chip->card->dev,
634		"pcxhr_update_r_buffer(pcm%c%d) : addr(%p) bytes(%zx) subs(%d)\n",
635		is_capture ? 'c' : 'p',
636		chip->chip_idx, (void *)(long)subs->runtime->dma_addr,
637		subs->runtime->dma_bytes, subs->number);
638
639	pcxhr_init_rmh(&rmh, CMD_UPDATE_R_BUFFERS);
640	pcxhr_set_pipe_cmd_params(&rmh, is_capture, stream->pipe->first_audio,
641				  stream_num, 0);
642
643	/* max buffer size is 2 MByte */
644	snd_BUG_ON(subs->runtime->dma_bytes >= 0x200000);
645	/* size in bits */
646	rmh.cmd[1] = subs->runtime->dma_bytes * 8;
647	/* most significant byte */
648	rmh.cmd[2] = subs->runtime->dma_addr >> 24;
649	/* this is a circular buffer */
650	rmh.cmd[2] |= 1<<19;
651	/* least 3 significant bytes */
652	rmh.cmd[3] = subs->runtime->dma_addr & MASK_DSP_WORD;
653	rmh.cmd_len = 4;
654	err = pcxhr_send_msg(chip->mgr, &rmh);
655	if (err)
656		dev_err(chip->card->dev,
657			   "ERROR CMD_UPDATE_R_BUFFERS err=%x;\n", err);
658	return err;
659}
660
661
662#if 0
663static int pcxhr_pipe_sample_count(struct pcxhr_stream *stream,
664				   snd_pcm_uframes_t *sample_count)
665{
666	struct pcxhr_rmh rmh;
667	int err;
668	pcxhr_t *chip = snd_pcm_substream_chip(stream->substream);
669	pcxhr_init_rmh(&rmh, CMD_PIPE_SAMPLE_COUNT);
670	pcxhr_set_pipe_cmd_params(&rmh, stream->pipe->is_capture, 0, 0,
671				  1<<stream->pipe->first_audio);
672	err = pcxhr_send_msg(chip->mgr, &rmh);
673	if (err == 0) {
674		*sample_count = ((snd_pcm_uframes_t)rmh.stat[0]) << 24;
675		*sample_count += (snd_pcm_uframes_t)rmh.stat[1];
676	}
677	dev_dbg(chip->card->dev, "PIPE_SAMPLE_COUNT = %lx\n", *sample_count);
678	return err;
679}
680#endif
681
682static inline int pcxhr_stream_scheduled_get_pipe(struct pcxhr_stream *stream,
683						  struct pcxhr_pipe **pipe)
684{
685	if (stream->status == PCXHR_STREAM_STATUS_SCHEDULE_RUN) {
686		*pipe = stream->pipe;
687		return 1;
688	}
689	return 0;
690}
691
692static void pcxhr_start_linked_stream(struct pcxhr_mgr *mgr)
693{
694	int i, j, err;
695	struct pcxhr_pipe *pipe;
696	struct snd_pcxhr *chip;
697	int capture_mask = 0;
698	int playback_mask = 0;
699
700#ifdef CONFIG_SND_DEBUG_VERBOSE
701	ktime_t start_time, stop_time, diff_time;
702
703	start_time = ktime_get();
704#endif
705	mutex_lock(&mgr->setup_mutex);
706
707	/* check the pipes concerned and build pipe_array */
708	for (i = 0; i < mgr->num_cards; i++) {
709		chip = mgr->chip[i];
710		for (j = 0; j < chip->nb_streams_capt; j++) {
711			if (pcxhr_stream_scheduled_get_pipe(&chip->capture_stream[j], &pipe))
712				capture_mask |= (1 << pipe->first_audio);
713		}
714		for (j = 0; j < chip->nb_streams_play; j++) {
715			if (pcxhr_stream_scheduled_get_pipe(&chip->playback_stream[j], &pipe)) {
716				playback_mask |= (1 << pipe->first_audio);
717				break;	/* add only once, as all playback
718					 * streams of one chip use the same pipe
719					 */
720			}
721		}
722	}
723	if (capture_mask == 0 && playback_mask == 0) {
724		mutex_unlock(&mgr->setup_mutex);
725		dev_err(&mgr->pci->dev, "pcxhr_start_linked_stream : no pipes\n");
726		return;
727	}
728
729	dev_dbg(&mgr->pci->dev, "pcxhr_start_linked_stream : "
730		    "playback_mask=%x capture_mask=%x\n",
731		    playback_mask, capture_mask);
732
733	/* synchronous stop of all the pipes concerned */
734	err = pcxhr_set_pipe_state(mgr,  playback_mask, capture_mask, 0);
735	if (err) {
736		mutex_unlock(&mgr->setup_mutex);
737		dev_err(&mgr->pci->dev, "pcxhr_start_linked_stream : "
738			   "error stop pipes (P%x C%x)\n",
739			   playback_mask, capture_mask);
740		return;
741	}
742
743	/* the dsp lost format and buffer info with the stop pipe */
744	for (i = 0; i < mgr->num_cards; i++) {
745		struct pcxhr_stream *stream;
746		chip = mgr->chip[i];
747		for (j = 0; j < chip->nb_streams_capt; j++) {
748			stream = &chip->capture_stream[j];
749			if (pcxhr_stream_scheduled_get_pipe(stream, &pipe)) {
750				err = pcxhr_set_format(stream);
751				err = pcxhr_update_r_buffer(stream);
752			}
753		}
754		for (j = 0; j < chip->nb_streams_play; j++) {
755			stream = &chip->playback_stream[j];
756			if (pcxhr_stream_scheduled_get_pipe(stream, &pipe)) {
757				err = pcxhr_set_format(stream);
758				err = pcxhr_update_r_buffer(stream);
759			}
760		}
761	}
762	/* start all the streams */
763	for (i = 0; i < mgr->num_cards; i++) {
764		struct pcxhr_stream *stream;
765		chip = mgr->chip[i];
766		for (j = 0; j < chip->nb_streams_capt; j++) {
767			stream = &chip->capture_stream[j];
768			if (pcxhr_stream_scheduled_get_pipe(stream, &pipe))
769				err = pcxhr_set_stream_state(chip, stream);
770		}
771		for (j = 0; j < chip->nb_streams_play; j++) {
772			stream = &chip->playback_stream[j];
773			if (pcxhr_stream_scheduled_get_pipe(stream, &pipe))
774				err = pcxhr_set_stream_state(chip, stream);
775		}
776	}
777
778	/* synchronous start of all the pipes concerned */
779	err = pcxhr_set_pipe_state(mgr, playback_mask, capture_mask, 1);
780	if (err) {
781		mutex_unlock(&mgr->setup_mutex);
782		dev_err(&mgr->pci->dev, "pcxhr_start_linked_stream : "
783			   "error start pipes (P%x C%x)\n",
784			   playback_mask, capture_mask);
785		return;
786	}
787
788	/* put the streams into the running state now
789	 * (increment pointer by interrupt)
790	 */
791	mutex_lock(&mgr->lock);
792	for ( i =0; i < mgr->num_cards; i++) {
793		struct pcxhr_stream *stream;
794		chip = mgr->chip[i];
795		for(j = 0; j < chip->nb_streams_capt; j++) {
796			stream = &chip->capture_stream[j];
797			if(stream->status == PCXHR_STREAM_STATUS_STARTED)
798				stream->status = PCXHR_STREAM_STATUS_RUNNING;
799		}
800		for (j = 0; j < chip->nb_streams_play; j++) {
801			stream = &chip->playback_stream[j];
802			if (stream->status == PCXHR_STREAM_STATUS_STARTED) {
803				/* playback will already have advanced ! */
804				stream->timer_period_frag += mgr->granularity;
805				stream->status = PCXHR_STREAM_STATUS_RUNNING;
806			}
807		}
808	}
809	mutex_unlock(&mgr->lock);
810
811	mutex_unlock(&mgr->setup_mutex);
812
813#ifdef CONFIG_SND_DEBUG_VERBOSE
814	stop_time = ktime_get();
815	diff_time = ktime_sub(stop_time, start_time);
816	dev_dbg(&mgr->pci->dev, "***TRIGGER START*** TIME = %ld (err = %x)\n",
817		    (long)(ktime_to_ns(diff_time)), err);
818#endif
819}
820
821
822/*
823 *  trigger callback
824 */
825static int pcxhr_trigger(struct snd_pcm_substream *subs, int cmd)
826{
827	struct pcxhr_stream *stream;
828	struct snd_pcm_substream *s;
829	struct snd_pcxhr *chip = snd_pcm_substream_chip(subs);
830
831	switch (cmd) {
832	case SNDRV_PCM_TRIGGER_START:
833		dev_dbg(chip->card->dev, "SNDRV_PCM_TRIGGER_START\n");
834		if (snd_pcm_stream_linked(subs)) {
835			snd_pcm_group_for_each_entry(s, subs) {
836				if (snd_pcm_substream_chip(s) != chip)
837					continue;
838				stream = s->runtime->private_data;
839				stream->status =
840					PCXHR_STREAM_STATUS_SCHEDULE_RUN;
841				snd_pcm_trigger_done(s, subs);
842			}
843			pcxhr_start_linked_stream(chip->mgr);
844		} else {
845			stream = subs->runtime->private_data;
846			dev_dbg(chip->card->dev, "Only one Substream %c %d\n",
847				    stream->pipe->is_capture ? 'C' : 'P',
848				    stream->pipe->first_audio);
849			if (pcxhr_set_format(stream))
850				return -EINVAL;
851			if (pcxhr_update_r_buffer(stream))
852				return -EINVAL;
853
854			stream->status = PCXHR_STREAM_STATUS_SCHEDULE_RUN;
855			if (pcxhr_set_stream_state(chip, stream))
856				return -EINVAL;
857			stream->status = PCXHR_STREAM_STATUS_RUNNING;
858		}
859		break;
860	case SNDRV_PCM_TRIGGER_STOP:
861		dev_dbg(chip->card->dev, "SNDRV_PCM_TRIGGER_STOP\n");
862		snd_pcm_group_for_each_entry(s, subs) {
863			stream = s->runtime->private_data;
864			stream->status = PCXHR_STREAM_STATUS_SCHEDULE_STOP;
865			if (pcxhr_set_stream_state(chip, stream))
866				return -EINVAL;
867			snd_pcm_trigger_done(s, subs);
868		}
869		break;
870	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
871	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
872		/* TODO */
873	default:
874		return -EINVAL;
875	}
876	return 0;
877}
878
879
880static int pcxhr_hardware_timer(struct pcxhr_mgr *mgr, int start)
881{
882	struct pcxhr_rmh rmh;
883	int err;
884
885	pcxhr_init_rmh(&rmh, CMD_SET_TIMER_INTERRUPT);
886	if (start) {
887		/* last dsp time invalid */
888		mgr->dsp_time_last = PCXHR_DSP_TIME_INVALID;
889		rmh.cmd[0] |= mgr->granularity;
890	}
891	err = pcxhr_send_msg(mgr, &rmh);
892	if (err < 0)
893		dev_err(&mgr->pci->dev, "error pcxhr_hardware_timer err(%x)\n",
894			   err);
895	return err;
896}
897
898/*
899 *  prepare callback for all pcms
900 */
901static int pcxhr_prepare(struct snd_pcm_substream *subs)
902{
903	struct snd_pcxhr *chip = snd_pcm_substream_chip(subs);
904	struct pcxhr_mgr *mgr = chip->mgr;
905	int err = 0;
906
907	dev_dbg(chip->card->dev,
908		"pcxhr_prepare : period_size(%lx) periods(%x) buffer_size(%lx)\n",
909		    subs->runtime->period_size, subs->runtime->periods,
910		    subs->runtime->buffer_size);
911
912	mutex_lock(&mgr->setup_mutex);
913
914	do {
915		/* only the first stream can choose the sample rate */
916		/* set the clock only once (first stream) */
917		if (mgr->sample_rate != subs->runtime->rate) {
918			err = pcxhr_set_clock(mgr, subs->runtime->rate);
919			if (err)
920				break;
921			if (mgr->sample_rate == 0)
922				/* start the DSP-timer */
923				err = pcxhr_hardware_timer(mgr, 1);
924			mgr->sample_rate = subs->runtime->rate;
925		}
926	} while(0);	/* do only once (so we can use break instead of goto) */
927
928	mutex_unlock(&mgr->setup_mutex);
929
930	return err;
931}
932
933
934/*
935 *  HW_PARAMS callback for all pcms
936 */
937static int pcxhr_hw_params(struct snd_pcm_substream *subs,
938			   struct snd_pcm_hw_params *hw)
939{
940	struct snd_pcxhr *chip = snd_pcm_substream_chip(subs);
941	struct pcxhr_mgr *mgr = chip->mgr;
942	struct pcxhr_stream *stream = subs->runtime->private_data;
943
944	mutex_lock(&mgr->setup_mutex);
945
946	/* set up channels */
947	stream->channels = params_channels(hw);
948	/* set up format for the stream */
949	stream->format = params_format(hw);
950
951	mutex_unlock(&mgr->setup_mutex);
952
953	return 0;
954}
955
956
957/*
958 *  CONFIGURATION SPACE for all pcms, mono pcm must update channels_max
959 */
960static const struct snd_pcm_hardware pcxhr_caps =
961{
962	.info             = (SNDRV_PCM_INFO_MMAP |
963			     SNDRV_PCM_INFO_INTERLEAVED |
964			     SNDRV_PCM_INFO_MMAP_VALID |
965			     SNDRV_PCM_INFO_SYNC_START),
966	.formats	  = (SNDRV_PCM_FMTBIT_U8 |
967			     SNDRV_PCM_FMTBIT_S16_LE |
968			     SNDRV_PCM_FMTBIT_S16_BE |
969			     SNDRV_PCM_FMTBIT_S24_3LE |
970			     SNDRV_PCM_FMTBIT_S24_3BE |
971			     SNDRV_PCM_FMTBIT_FLOAT_LE),
972	.rates            = (SNDRV_PCM_RATE_CONTINUOUS |
973			     SNDRV_PCM_RATE_8000_192000),
974	.rate_min         = 8000,
975	.rate_max         = 192000,
976	.channels_min     = 1,
977	.channels_max     = 2,
978	.buffer_bytes_max = (32*1024),
979	/* 1 byte == 1 frame U8 mono (PCXHR_GRANULARITY is frames!) */
980	.period_bytes_min = (2*PCXHR_GRANULARITY),
981	.period_bytes_max = (16*1024),
982	.periods_min      = 2,
983	.periods_max      = (32*1024/PCXHR_GRANULARITY),
984};
985
986
987static int pcxhr_open(struct snd_pcm_substream *subs)
988{
989	struct snd_pcxhr       *chip = snd_pcm_substream_chip(subs);
990	struct pcxhr_mgr       *mgr = chip->mgr;
991	struct snd_pcm_runtime *runtime = subs->runtime;
992	struct pcxhr_stream    *stream;
993	int err;
994
995	mutex_lock(&mgr->setup_mutex);
996
997	/* copy the struct snd_pcm_hardware struct */
998	runtime->hw = pcxhr_caps;
999
1000	if( subs->stream == SNDRV_PCM_STREAM_PLAYBACK ) {
1001		dev_dbg(chip->card->dev, "pcxhr_open playback chip%d subs%d\n",
1002			    chip->chip_idx, subs->number);
1003		stream = &chip->playback_stream[subs->number];
1004	} else {
1005		dev_dbg(chip->card->dev, "pcxhr_open capture chip%d subs%d\n",
1006			    chip->chip_idx, subs->number);
1007		if (mgr->mono_capture)
1008			runtime->hw.channels_max = 1;
1009		else
1010			runtime->hw.channels_min = 2;
1011		stream = &chip->capture_stream[subs->number];
1012	}
1013	if (stream->status != PCXHR_STREAM_STATUS_FREE){
1014		/* streams in use */
1015		dev_err(chip->card->dev, "pcxhr_open chip%d subs%d in use\n",
1016			   chip->chip_idx, subs->number);
1017		mutex_unlock(&mgr->setup_mutex);
1018		return -EBUSY;
1019	}
1020
1021	/* float format support is in some cases buggy on stereo cards */
1022	if (mgr->is_hr_stereo)
1023		runtime->hw.formats &= ~SNDRV_PCM_FMTBIT_FLOAT_LE;
1024
1025	/* buffer-size should better be multiple of period-size */
1026	err = snd_pcm_hw_constraint_integer(runtime,
1027					    SNDRV_PCM_HW_PARAM_PERIODS);
1028	if (err < 0) {
1029		mutex_unlock(&mgr->setup_mutex);
1030		return err;
1031	}
1032
1033	/* if a sample rate is already used or fixed by external clock,
1034	 * the stream cannot change
1035	 */
1036	if (mgr->sample_rate)
1037		runtime->hw.rate_min = runtime->hw.rate_max = mgr->sample_rate;
1038	else {
1039		if (mgr->use_clock_type != PCXHR_CLOCK_TYPE_INTERNAL) {
1040			int external_rate;
1041			if (pcxhr_get_external_clock(mgr, mgr->use_clock_type,
1042						     &external_rate) ||
1043			    external_rate == 0) {
1044				/* cannot detect the external clock rate */
1045				mutex_unlock(&mgr->setup_mutex);
1046				return -EBUSY;
1047			}
1048			runtime->hw.rate_min = external_rate;
1049			runtime->hw.rate_max = external_rate;
1050		}
1051	}
1052
1053	stream->status      = PCXHR_STREAM_STATUS_OPEN;
1054	stream->substream   = subs;
1055	stream->channels    = 0; /* not configured yet */
1056
1057	runtime->private_data = stream;
1058
1059	/* better get a divisor of granularity values (96 or 192) */
1060	snd_pcm_hw_constraint_step(runtime, 0,
1061				   SNDRV_PCM_HW_PARAM_BUFFER_SIZE, 32);
1062	snd_pcm_hw_constraint_step(runtime, 0,
1063				   SNDRV_PCM_HW_PARAM_PERIOD_SIZE, 32);
1064	snd_pcm_set_sync(subs);
1065
1066	mgr->ref_count_rate++;
1067
1068	mutex_unlock(&mgr->setup_mutex);
1069	return 0;
1070}
1071
1072
1073static int pcxhr_close(struct snd_pcm_substream *subs)
1074{
1075	struct snd_pcxhr *chip = snd_pcm_substream_chip(subs);
1076	struct pcxhr_mgr *mgr = chip->mgr;
1077	struct pcxhr_stream *stream = subs->runtime->private_data;
1078
1079	mutex_lock(&mgr->setup_mutex);
1080
1081	dev_dbg(chip->card->dev, "pcxhr_close chip%d subs%d\n",
1082		    chip->chip_idx, subs->number);
1083
1084	/* sample rate released */
1085	if (--mgr->ref_count_rate == 0) {
1086		mgr->sample_rate = 0;	/* the sample rate is no more locked */
1087		pcxhr_hardware_timer(mgr, 0);	/* stop the DSP-timer */
1088	}
1089
1090	stream->status    = PCXHR_STREAM_STATUS_FREE;
1091	stream->substream = NULL;
1092
1093	mutex_unlock(&mgr->setup_mutex);
1094
1095	return 0;
1096}
1097
1098
1099static snd_pcm_uframes_t pcxhr_stream_pointer(struct snd_pcm_substream *subs)
1100{
1101	u_int32_t timer_period_frag;
1102	int timer_buf_periods;
1103	struct snd_pcxhr *chip = snd_pcm_substream_chip(subs);
1104	struct snd_pcm_runtime *runtime = subs->runtime;
1105	struct pcxhr_stream *stream  = runtime->private_data;
1106
1107	mutex_lock(&chip->mgr->lock);
1108
1109	/* get the period fragment and the nb of periods in the buffer */
1110	timer_period_frag = stream->timer_period_frag;
1111	timer_buf_periods = stream->timer_buf_periods;
1112
1113	mutex_unlock(&chip->mgr->lock);
1114
1115	return (snd_pcm_uframes_t)((timer_buf_periods * runtime->period_size) +
1116				   timer_period_frag);
1117}
1118
1119
1120static const struct snd_pcm_ops pcxhr_ops = {
1121	.open      = pcxhr_open,
1122	.close     = pcxhr_close,
1123	.prepare   = pcxhr_prepare,
1124	.hw_params = pcxhr_hw_params,
1125	.trigger   = pcxhr_trigger,
1126	.pointer   = pcxhr_stream_pointer,
1127};
1128
1129/*
1130 */
1131int pcxhr_create_pcm(struct snd_pcxhr *chip)
1132{
1133	int err;
1134	struct snd_pcm *pcm;
1135	char name[32];
1136
1137	snprintf(name, sizeof(name), "pcxhr %d", chip->chip_idx);
1138	if ((err = snd_pcm_new(chip->card, name, 0,
1139			       chip->nb_streams_play,
1140			       chip->nb_streams_capt, &pcm)) < 0) {
1141		dev_err(chip->card->dev, "cannot create pcm %s\n", name);
1142		return err;
1143	}
1144	pcm->private_data = chip;
1145
1146	if (chip->nb_streams_play)
1147		snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &pcxhr_ops);
1148	if (chip->nb_streams_capt)
1149		snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &pcxhr_ops);
1150
1151	pcm->info_flags = 0;
1152	pcm->nonatomic = true;
1153	strcpy(pcm->name, name);
1154
1155	snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV,
1156				       &chip->mgr->pci->dev,
1157				       32*1024, 32*1024);
1158	chip->pcm = pcm;
1159	return 0;
1160}
1161
1162static int pcxhr_chip_free(struct snd_pcxhr *chip)
1163{
1164	kfree(chip);
1165	return 0;
1166}
1167
1168static int pcxhr_chip_dev_free(struct snd_device *device)
1169{
1170	struct snd_pcxhr *chip = device->device_data;
1171	return pcxhr_chip_free(chip);
1172}
1173
1174
1175/*
1176 */
1177static int pcxhr_create(struct pcxhr_mgr *mgr,
1178			struct snd_card *card, int idx)
1179{
1180	int err;
1181	struct snd_pcxhr *chip;
1182	static const struct snd_device_ops ops = {
1183		.dev_free = pcxhr_chip_dev_free,
1184	};
1185
1186	chip = kzalloc(sizeof(*chip), GFP_KERNEL);
1187	if (!chip)
1188		return -ENOMEM;
1189
1190	chip->card = card;
1191	chip->chip_idx = idx;
1192	chip->mgr = mgr;
1193	card->sync_irq = mgr->irq;
1194
1195	if (idx < mgr->playback_chips)
1196		/* stereo or mono streams */
1197		chip->nb_streams_play = PCXHR_PLAYBACK_STREAMS;
1198
1199	if (idx < mgr->capture_chips) {
1200		if (mgr->mono_capture)
1201			chip->nb_streams_capt = 2;	/* 2 mono streams */
1202		else
1203			chip->nb_streams_capt = 1;	/* or 1 stereo stream */
1204	}
1205
1206	if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
1207		pcxhr_chip_free(chip);
1208		return err;
1209	}
1210
1211	mgr->chip[idx] = chip;
1212
1213	return 0;
1214}
1215
1216/* proc interface */
1217static void pcxhr_proc_info(struct snd_info_entry *entry,
1218			    struct snd_info_buffer *buffer)
1219{
1220	struct snd_pcxhr *chip = entry->private_data;
1221	struct pcxhr_mgr *mgr = chip->mgr;
1222
1223	snd_iprintf(buffer, "\n%s\n", mgr->name);
1224
1225	/* stats available when embedded DSP is running */
1226	if (mgr->dsp_loaded & (1 << PCXHR_FIRMWARE_DSP_MAIN_INDEX)) {
1227		struct pcxhr_rmh rmh;
1228		short ver_maj = (mgr->dsp_version >> 16) & 0xff;
1229		short ver_min = (mgr->dsp_version >> 8) & 0xff;
1230		short ver_build = mgr->dsp_version & 0xff;
1231		snd_iprintf(buffer, "module version %s\n",
1232			    PCXHR_DRIVER_VERSION_STRING);
1233		snd_iprintf(buffer, "dsp version %d.%d.%d\n",
1234			    ver_maj, ver_min, ver_build);
1235		if (mgr->board_has_analog)
1236			snd_iprintf(buffer, "analog io available\n");
1237		else
1238			snd_iprintf(buffer, "digital only board\n");
1239
1240		/* calc cpu load of the dsp */
1241		pcxhr_init_rmh(&rmh, CMD_GET_DSP_RESOURCES);
1242		if( ! pcxhr_send_msg(mgr, &rmh) ) {
1243			int cur = rmh.stat[0];
1244			int ref = rmh.stat[1];
1245			if (ref > 0) {
1246				if (mgr->sample_rate_real != 0 &&
1247				    mgr->sample_rate_real != 48000) {
1248					ref = (ref * 48000) /
1249					  mgr->sample_rate_real;
1250					if (mgr->sample_rate_real >=
1251					    PCXHR_IRQ_TIMER_FREQ)
1252						ref *= 2;
1253				}
1254				cur = 100 - (100 * cur) / ref;
1255				snd_iprintf(buffer, "cpu load    %d%%\n", cur);
1256				snd_iprintf(buffer, "buffer pool %d/%d\n",
1257					    rmh.stat[2], rmh.stat[3]);
1258			}
1259		}
1260		snd_iprintf(buffer, "dma granularity : %d\n",
1261			    mgr->granularity);
1262		snd_iprintf(buffer, "dsp time errors : %d\n",
1263			    mgr->dsp_time_err);
1264		snd_iprintf(buffer, "dsp async pipe xrun errors : %d\n",
1265			    mgr->async_err_pipe_xrun);
1266		snd_iprintf(buffer, "dsp async stream xrun errors : %d\n",
1267			    mgr->async_err_stream_xrun);
1268		snd_iprintf(buffer, "dsp async last other error : %x\n",
1269			    mgr->async_err_other_last);
1270		/* debug zone dsp */
1271		rmh.cmd[0] = 0x4200 + PCXHR_SIZE_MAX_STATUS;
1272		rmh.cmd_len = 1;
1273		rmh.stat_len = PCXHR_SIZE_MAX_STATUS;
1274		rmh.dsp_stat = 0;
1275		rmh.cmd_idx = CMD_LAST_INDEX;
1276		if( ! pcxhr_send_msg(mgr, &rmh) ) {
1277			int i;
1278			if (rmh.stat_len > 8)
1279				rmh.stat_len = 8;
1280			for (i = 0; i < rmh.stat_len; i++)
1281				snd_iprintf(buffer, "debug[%02d] = %06x\n",
1282					    i,  rmh.stat[i]);
1283		}
1284	} else
1285		snd_iprintf(buffer, "no firmware loaded\n");
1286	snd_iprintf(buffer, "\n");
1287}
1288static void pcxhr_proc_sync(struct snd_info_entry *entry,
1289			    struct snd_info_buffer *buffer)
1290{
1291	struct snd_pcxhr *chip = entry->private_data;
1292	struct pcxhr_mgr *mgr = chip->mgr;
1293	static const char *textsHR22[3] = {
1294		"Internal", "AES Sync", "AES 1"
1295	};
1296	static const char *textsPCXHR[7] = {
1297		"Internal", "Word", "AES Sync",
1298		"AES 1", "AES 2", "AES 3", "AES 4"
1299	};
1300	const char **texts;
1301	int max_clock;
1302	if (mgr->is_hr_stereo) {
1303		texts = textsHR22;
1304		max_clock = HR22_CLOCK_TYPE_MAX;
1305	} else {
1306		texts = textsPCXHR;
1307		max_clock = PCXHR_CLOCK_TYPE_MAX;
1308	}
1309
1310	snd_iprintf(buffer, "\n%s\n", mgr->name);
1311	snd_iprintf(buffer, "Current Sample Clock\t: %s\n",
1312		    texts[mgr->cur_clock_type]);
1313	snd_iprintf(buffer, "Current Sample Rate\t= %d\n",
1314		    mgr->sample_rate_real);
1315	/* commands available when embedded DSP is running */
1316	if (mgr->dsp_loaded & (1 << PCXHR_FIRMWARE_DSP_MAIN_INDEX)) {
1317		int i, err, sample_rate;
1318		for (i = 1; i <= max_clock; i++) {
1319			err = pcxhr_get_external_clock(mgr, i, &sample_rate);
1320			if (err)
1321				break;
1322			snd_iprintf(buffer, "%s Clock\t\t= %d\n",
1323				    texts[i], sample_rate);
1324		}
1325	} else
1326		snd_iprintf(buffer, "no firmware loaded\n");
1327	snd_iprintf(buffer, "\n");
1328}
1329
1330static void pcxhr_proc_gpio_read(struct snd_info_entry *entry,
1331				 struct snd_info_buffer *buffer)
1332{
1333	struct snd_pcxhr *chip = entry->private_data;
1334	struct pcxhr_mgr *mgr = chip->mgr;
1335	/* commands available when embedded DSP is running */
1336	if (mgr->dsp_loaded & (1 << PCXHR_FIRMWARE_DSP_MAIN_INDEX)) {
1337		/* gpio ports on stereo boards only available */
1338		int value = 0;
1339		hr222_read_gpio(mgr, 1, &value);	/* GPI */
1340		snd_iprintf(buffer, "GPI: 0x%x\n", value);
1341		hr222_read_gpio(mgr, 0, &value);	/* GP0 */
1342		snd_iprintf(buffer, "GPO: 0x%x\n", value);
1343	} else
1344		snd_iprintf(buffer, "no firmware loaded\n");
1345	snd_iprintf(buffer, "\n");
1346}
1347static void pcxhr_proc_gpo_write(struct snd_info_entry *entry,
1348				 struct snd_info_buffer *buffer)
1349{
1350	struct snd_pcxhr *chip = entry->private_data;
1351	struct pcxhr_mgr *mgr = chip->mgr;
1352	char line[64];
1353	int value;
1354	/* commands available when embedded DSP is running */
1355	if (!(mgr->dsp_loaded & (1 << PCXHR_FIRMWARE_DSP_MAIN_INDEX)))
1356		return;
1357	while (!snd_info_get_line(buffer, line, sizeof(line))) {
1358		if (sscanf(line, "GPO: 0x%x", &value) != 1)
1359			continue;
1360		hr222_write_gpo(mgr, value);	/* GP0 */
1361	}
1362}
1363
1364/* Access to the results of the CMD_GET_TIME_CODE RMH */
1365#define TIME_CODE_VALID_MASK	0x00800000
1366#define TIME_CODE_NEW_MASK	0x00400000
1367#define TIME_CODE_BACK_MASK	0x00200000
1368#define TIME_CODE_WAIT_MASK	0x00100000
1369
1370/* Values for the CMD_MANAGE_SIGNAL RMH */
1371#define MANAGE_SIGNAL_TIME_CODE	0x01
1372#define MANAGE_SIGNAL_MIDI	0x02
1373
1374/* linear time code read proc*/
1375static void pcxhr_proc_ltc(struct snd_info_entry *entry,
1376			   struct snd_info_buffer *buffer)
1377{
1378	struct snd_pcxhr *chip = entry->private_data;
1379	struct pcxhr_mgr *mgr = chip->mgr;
1380	struct pcxhr_rmh rmh;
1381	unsigned int ltcHrs, ltcMin, ltcSec, ltcFrm;
1382	int err;
1383	/* commands available when embedded DSP is running */
1384	if (!(mgr->dsp_loaded & (1 << PCXHR_FIRMWARE_DSP_MAIN_INDEX))) {
1385		snd_iprintf(buffer, "no firmware loaded\n");
1386		return;
1387	}
1388	if (!mgr->capture_ltc) {
1389		pcxhr_init_rmh(&rmh, CMD_MANAGE_SIGNAL);
1390		rmh.cmd[0] |= MANAGE_SIGNAL_TIME_CODE;
1391		err = pcxhr_send_msg(mgr, &rmh);
1392		if (err) {
1393			snd_iprintf(buffer, "ltc not activated (%d)\n", err);
1394			return;
1395		}
1396		if (mgr->is_hr_stereo)
1397			hr222_manage_timecode(mgr, 1);
1398		else
1399			pcxhr_write_io_num_reg_cont(mgr, REG_CONT_VALSMPTE,
1400						    REG_CONT_VALSMPTE, NULL);
1401		mgr->capture_ltc = 1;
1402	}
1403	pcxhr_init_rmh(&rmh, CMD_GET_TIME_CODE);
1404	err = pcxhr_send_msg(mgr, &rmh);
1405	if (err) {
1406		snd_iprintf(buffer, "ltc read error (err=%d)\n", err);
1407		return ;
1408	}
1409	ltcHrs = 10*((rmh.stat[0] >> 8) & 0x3) + (rmh.stat[0] & 0xf);
1410	ltcMin = 10*((rmh.stat[1] >> 16) & 0x7) + ((rmh.stat[1] >> 8) & 0xf);
1411	ltcSec = 10*(rmh.stat[1] & 0x7) + ((rmh.stat[2] >> 16) & 0xf);
1412	ltcFrm = 10*((rmh.stat[2] >> 8) & 0x3) + (rmh.stat[2] & 0xf);
1413
1414	snd_iprintf(buffer, "timecode: %02u:%02u:%02u-%02u\n",
1415			    ltcHrs, ltcMin, ltcSec, ltcFrm);
1416	snd_iprintf(buffer, "raw: 0x%04x%06x%06x\n", rmh.stat[0] & 0x00ffff,
1417			    rmh.stat[1] & 0xffffff, rmh.stat[2] & 0xffffff);
1418	/*snd_iprintf(buffer, "dsp ref time: 0x%06x%06x\n",
1419			    rmh.stat[3] & 0xffffff, rmh.stat[4] & 0xffffff);*/
1420	if (!(rmh.stat[0] & TIME_CODE_VALID_MASK)) {
1421		snd_iprintf(buffer, "warning: linear timecode not valid\n");
1422	}
1423}
1424
1425static void pcxhr_proc_init(struct snd_pcxhr *chip)
1426{
1427	snd_card_ro_proc_new(chip->card, "info", chip, pcxhr_proc_info);
1428	snd_card_ro_proc_new(chip->card, "sync", chip, pcxhr_proc_sync);
1429	/* gpio available on stereo sound cards only */
1430	if (chip->mgr->is_hr_stereo)
1431		snd_card_rw_proc_new(chip->card, "gpio", chip,
1432				     pcxhr_proc_gpio_read,
1433				     pcxhr_proc_gpo_write);
1434	snd_card_ro_proc_new(chip->card, "ltc", chip, pcxhr_proc_ltc);
1435}
1436/* end of proc interface */
1437
1438/*
1439 * release all the cards assigned to a manager instance
1440 */
1441static int pcxhr_free(struct pcxhr_mgr *mgr)
1442{
1443	unsigned int i;
1444
1445	for (i = 0; i < mgr->num_cards; i++) {
1446		if (mgr->chip[i])
1447			snd_card_free(mgr->chip[i]->card);
1448	}
1449
1450	/* reset board if some firmware was loaded */
1451	if(mgr->dsp_loaded) {
1452		pcxhr_reset_board(mgr);
1453		dev_dbg(&mgr->pci->dev, "reset pcxhr !\n");
1454	}
1455
1456	/* release irq  */
1457	if (mgr->irq >= 0)
1458		free_irq(mgr->irq, mgr);
1459
1460	pci_release_regions(mgr->pci);
1461
1462	/* free hostport purgebuffer */
1463	if (mgr->hostport.area) {
1464		snd_dma_free_pages(&mgr->hostport);
1465		mgr->hostport.area = NULL;
1466	}
1467
1468	kfree(mgr->prmh);
1469
1470	pci_disable_device(mgr->pci);
1471	kfree(mgr);
1472	return 0;
1473}
1474
1475/*
1476 *    probe function - creates the card manager
1477 */
1478static int pcxhr_probe(struct pci_dev *pci,
1479		       const struct pci_device_id *pci_id)
1480{
1481	static int dev;
1482	struct pcxhr_mgr *mgr;
1483	unsigned int i;
1484	int err;
1485	size_t size;
1486	char *card_name;
1487
1488	if (dev >= SNDRV_CARDS)
1489		return -ENODEV;
1490	if (! enable[dev]) {
1491		dev++;
1492		return -ENOENT;
1493	}
1494
1495	/* enable PCI device */
1496	if ((err = pci_enable_device(pci)) < 0)
1497		return err;
1498	pci_set_master(pci);
1499
1500	/* check if we can restrict PCI DMA transfers to 32 bits */
1501	if (dma_set_mask(&pci->dev, DMA_BIT_MASK(32)) < 0) {
1502		dev_err(&pci->dev,
1503			"architecture does not support 32bit PCI busmaster DMA\n");
1504		pci_disable_device(pci);
1505		return -ENXIO;
1506	}
1507
1508	/* alloc card manager */
1509	mgr = kzalloc(sizeof(*mgr), GFP_KERNEL);
1510	if (! mgr) {
1511		pci_disable_device(pci);
1512		return -ENOMEM;
1513	}
1514
1515	if (snd_BUG_ON(pci_id->driver_data >= PCI_ID_LAST)) {
1516		kfree(mgr);
1517		pci_disable_device(pci);
1518		return -ENODEV;
1519	}
1520	card_name =
1521		pcxhr_board_params[pci_id->driver_data].board_name;
1522	mgr->playback_chips =
1523		pcxhr_board_params[pci_id->driver_data].playback_chips;
1524	mgr->capture_chips  =
1525		pcxhr_board_params[pci_id->driver_data].capture_chips;
1526	mgr->fw_file_set =
1527		pcxhr_board_params[pci_id->driver_data].fw_file_set;
1528	mgr->firmware_num  =
1529		pcxhr_board_params[pci_id->driver_data].firmware_num;
1530	mgr->mono_capture = mono[dev];
1531	mgr->is_hr_stereo = (mgr->playback_chips == 1);
1532	mgr->board_has_aes1 = PCXHR_BOARD_HAS_AES1(mgr);
1533	mgr->board_aes_in_192k = !PCXHR_BOARD_AESIN_NO_192K(mgr);
1534
1535	if (mgr->is_hr_stereo)
1536		mgr->granularity = PCXHR_GRANULARITY_HR22;
1537	else
1538		mgr->granularity = PCXHR_GRANULARITY;
1539
1540	/* resource assignment */
1541	if ((err = pci_request_regions(pci, card_name)) < 0) {
1542		kfree(mgr);
1543		pci_disable_device(pci);
1544		return err;
1545	}
1546	for (i = 0; i < 3; i++)
1547		mgr->port[i] = pci_resource_start(pci, i);
1548
1549	mgr->pci = pci;
1550	mgr->irq = -1;
1551
1552	if (request_threaded_irq(pci->irq, pcxhr_interrupt,
1553				 pcxhr_threaded_irq, IRQF_SHARED,
1554				 KBUILD_MODNAME, mgr)) {
1555		dev_err(&pci->dev, "unable to grab IRQ %d\n", pci->irq);
1556		pcxhr_free(mgr);
1557		return -EBUSY;
1558	}
1559	mgr->irq = pci->irq;
1560
1561	snprintf(mgr->name, sizeof(mgr->name),
1562		 "Digigram at 0x%lx & 0x%lx, 0x%lx irq %i",
1563		 mgr->port[0], mgr->port[1], mgr->port[2], mgr->irq);
1564
1565	/* ISR lock  */
1566	mutex_init(&mgr->lock);
1567	mutex_init(&mgr->msg_lock);
1568
1569	/* init setup mutex*/
1570	mutex_init(&mgr->setup_mutex);
1571
1572	mgr->prmh = kmalloc(sizeof(*mgr->prmh) +
1573			    sizeof(u32) * (PCXHR_SIZE_MAX_LONG_STATUS -
1574					   PCXHR_SIZE_MAX_STATUS),
1575			    GFP_KERNEL);
1576	if (! mgr->prmh) {
1577		pcxhr_free(mgr);
1578		return -ENOMEM;
1579	}
1580
1581	for (i=0; i < PCXHR_MAX_CARDS; i++) {
1582		struct snd_card *card;
1583		char tmpid[16];
1584		int idx;
1585
1586		if (i >= max(mgr->playback_chips, mgr->capture_chips))
1587			break;
1588		mgr->num_cards++;
1589
1590		if (index[dev] < 0)
1591			idx = index[dev];
1592		else
1593			idx = index[dev] + i;
1594
1595		snprintf(tmpid, sizeof(tmpid), "%s-%d",
1596			 id[dev] ? id[dev] : card_name, i);
1597		err = snd_card_new(&pci->dev, idx, tmpid, THIS_MODULE,
1598				   0, &card);
1599
1600		if (err < 0) {
1601			dev_err(&pci->dev, "cannot allocate the card %d\n", i);
1602			pcxhr_free(mgr);
1603			return err;
1604		}
1605
1606		strcpy(card->driver, DRIVER_NAME);
1607		snprintf(card->shortname, sizeof(card->shortname),
1608			 "Digigram [PCM #%d]", i);
1609		snprintf(card->longname, sizeof(card->longname),
1610			 "%s [PCM #%d]", mgr->name, i);
1611
1612		if ((err = pcxhr_create(mgr, card, i)) < 0) {
1613			snd_card_free(card);
1614			pcxhr_free(mgr);
1615			return err;
1616		}
1617
1618		if (i == 0)
1619			/* init proc interface only for chip0 */
1620			pcxhr_proc_init(mgr->chip[i]);
1621
1622		if ((err = snd_card_register(card)) < 0) {
1623			pcxhr_free(mgr);
1624			return err;
1625		}
1626	}
1627
1628	/* create hostport purgebuffer */
1629	size = PAGE_ALIGN(sizeof(struct pcxhr_hostport));
1630	if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, &pci->dev,
1631				size, &mgr->hostport) < 0) {
1632		pcxhr_free(mgr);
1633		return -ENOMEM;
1634	}
1635	/* init purgebuffer */
1636	memset(mgr->hostport.area, 0, size);
1637
1638	/* create a DSP loader */
1639	err = pcxhr_setup_firmware(mgr);
1640	if (err < 0) {
1641		pcxhr_free(mgr);
1642		return err;
1643	}
1644
1645	pci_set_drvdata(pci, mgr);
1646	dev++;
1647	return 0;
1648}
1649
1650static void pcxhr_remove(struct pci_dev *pci)
1651{
1652	pcxhr_free(pci_get_drvdata(pci));
1653}
1654
1655static struct pci_driver pcxhr_driver = {
1656	.name = KBUILD_MODNAME,
1657	.id_table = pcxhr_ids,
1658	.probe = pcxhr_probe,
1659	.remove = pcxhr_remove,
1660};
1661
1662module_pci_driver(pcxhr_driver);
1663