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1/*
2 * ALSA modem driver for Intel ICH (i8x0) chipsets
3 *
4 * Copyright (c) 2000 Jaroslav Kysela <perex@perex.cz>
5 *
6 * This is modified (by Sasha Khapyorsky <sashak@alsa-project.org>) version
7 * of ALSA ICH sound driver intel8x0.c .
8 *
9 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
14 *
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
19 *
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23 *
24 */
25
26#include <asm/io.h>
27#include <linux/delay.h>
28#include <linux/interrupt.h>
29#include <linux/init.h>
30#include <linux/pci.h>
31#include <linux/slab.h>
32#include <linux/module.h>
33#include <sound/core.h>
34#include <sound/pcm.h>
35#include <sound/ac97_codec.h>
36#include <sound/info.h>
37#include <sound/initval.h>
38
39MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
40MODULE_DESCRIPTION("Intel 82801AA,82901AB,i810,i820,i830,i840,i845,MX440; "
41 "SiS 7013; NVidia MCP/2/2S/3 modems");
42MODULE_LICENSE("GPL");
43MODULE_SUPPORTED_DEVICE("{{Intel,82801AA-ICH},"
44 "{Intel,82901AB-ICH0},"
45 "{Intel,82801BA-ICH2},"
46 "{Intel,82801CA-ICH3},"
47 "{Intel,82801DB-ICH4},"
48 "{Intel,ICH5},"
49 "{Intel,ICH6},"
50 "{Intel,ICH7},"
51 "{Intel,MX440},"
52 "{SiS,7013},"
53 "{NVidia,NForce Modem},"
54 "{NVidia,NForce2 Modem},"
55 "{NVidia,NForce2s Modem},"
56 "{NVidia,NForce3 Modem},"
57 "{AMD,AMD768}}");
58
59static int index = -2; /* Exclude the first card */
60static char *id = SNDRV_DEFAULT_STR1; /* ID for this card */
61static int ac97_clock;
62
63module_param(index, int, 0444);
64MODULE_PARM_DESC(index, "Index value for Intel i8x0 modemcard.");
65module_param(id, charp, 0444);
66MODULE_PARM_DESC(id, "ID string for Intel i8x0 modemcard.");
67module_param(ac97_clock, int, 0444);
68MODULE_PARM_DESC(ac97_clock, "AC'97 codec clock (0 = auto-detect).");
69
70/* just for backward compatibility */
71static bool enable;
72module_param(enable, bool, 0444);
73
74/*
75 * Direct registers
76 */
77enum { DEVICE_INTEL, DEVICE_SIS, DEVICE_ALI, DEVICE_NFORCE };
78
79#define ICHREG(x) ICH_REG_##x
80
81#define DEFINE_REGSET(name,base) \
82enum { \
83 ICH_REG_##name##_BDBAR = base + 0x0, /* dword - buffer descriptor list base address */ \
84 ICH_REG_##name##_CIV = base + 0x04, /* byte - current index value */ \
85 ICH_REG_##name##_LVI = base + 0x05, /* byte - last valid index */ \
86 ICH_REG_##name##_SR = base + 0x06, /* byte - status register */ \
87 ICH_REG_##name##_PICB = base + 0x08, /* word - position in current buffer */ \
88 ICH_REG_##name##_PIV = base + 0x0a, /* byte - prefetched index value */ \
89 ICH_REG_##name##_CR = base + 0x0b, /* byte - control register */ \
90};
91
92/* busmaster blocks */
93DEFINE_REGSET(OFF, 0); /* offset */
94
95/* values for each busmaster block */
96
97/* LVI */
98#define ICH_REG_LVI_MASK 0x1f
99
100/* SR */
101#define ICH_FIFOE 0x10 /* FIFO error */
102#define ICH_BCIS 0x08 /* buffer completion interrupt status */
103#define ICH_LVBCI 0x04 /* last valid buffer completion interrupt */
104#define ICH_CELV 0x02 /* current equals last valid */
105#define ICH_DCH 0x01 /* DMA controller halted */
106
107/* PIV */
108#define ICH_REG_PIV_MASK 0x1f /* mask */
109
110/* CR */
111#define ICH_IOCE 0x10 /* interrupt on completion enable */
112#define ICH_FEIE 0x08 /* fifo error interrupt enable */
113#define ICH_LVBIE 0x04 /* last valid buffer interrupt enable */
114#define ICH_RESETREGS 0x02 /* reset busmaster registers */
115#define ICH_STARTBM 0x01 /* start busmaster operation */
116
117
118/* global block */
119#define ICH_REG_GLOB_CNT 0x3c /* dword - global control */
120#define ICH_TRIE 0x00000040 /* tertiary resume interrupt enable */
121#define ICH_SRIE 0x00000020 /* secondary resume interrupt enable */
122#define ICH_PRIE 0x00000010 /* primary resume interrupt enable */
123#define ICH_ACLINK 0x00000008 /* AClink shut off */
124#define ICH_AC97WARM 0x00000004 /* AC'97 warm reset */
125#define ICH_AC97COLD 0x00000002 /* AC'97 cold reset */
126#define ICH_GIE 0x00000001 /* GPI interrupt enable */
127#define ICH_REG_GLOB_STA 0x40 /* dword - global status */
128#define ICH_TRI 0x20000000 /* ICH4: tertiary (AC_SDIN2) resume interrupt */
129#define ICH_TCR 0x10000000 /* ICH4: tertiary (AC_SDIN2) codec ready */
130#define ICH_BCS 0x08000000 /* ICH4: bit clock stopped */
131#define ICH_SPINT 0x04000000 /* ICH4: S/PDIF interrupt */
132#define ICH_P2INT 0x02000000 /* ICH4: PCM2-In interrupt */
133#define ICH_M2INT 0x01000000 /* ICH4: Mic2-In interrupt */
134#define ICH_SAMPLE_CAP 0x00c00000 /* ICH4: sample capability bits (RO) */
135#define ICH_MULTICHAN_CAP 0x00300000 /* ICH4: multi-channel capability bits (RO) */
136#define ICH_MD3 0x00020000 /* modem power down semaphore */
137#define ICH_AD3 0x00010000 /* audio power down semaphore */
138#define ICH_RCS 0x00008000 /* read completion status */
139#define ICH_BIT3 0x00004000 /* bit 3 slot 12 */
140#define ICH_BIT2 0x00002000 /* bit 2 slot 12 */
141#define ICH_BIT1 0x00001000 /* bit 1 slot 12 */
142#define ICH_SRI 0x00000800 /* secondary (AC_SDIN1) resume interrupt */
143#define ICH_PRI 0x00000400 /* primary (AC_SDIN0) resume interrupt */
144#define ICH_SCR 0x00000200 /* secondary (AC_SDIN1) codec ready */
145#define ICH_PCR 0x00000100 /* primary (AC_SDIN0) codec ready */
146#define ICH_MCINT 0x00000080 /* MIC capture interrupt */
147#define ICH_POINT 0x00000040 /* playback interrupt */
148#define ICH_PIINT 0x00000020 /* capture interrupt */
149#define ICH_NVSPINT 0x00000010 /* nforce spdif interrupt */
150#define ICH_MOINT 0x00000004 /* modem playback interrupt */
151#define ICH_MIINT 0x00000002 /* modem capture interrupt */
152#define ICH_GSCI 0x00000001 /* GPI status change interrupt */
153#define ICH_REG_ACC_SEMA 0x44 /* byte - codec write semaphore */
154#define ICH_CAS 0x01 /* codec access semaphore */
155
156#define ICH_MAX_FRAGS 32 /* max hw frags */
157
158
159/*
160 *
161 */
162
163enum { ICHD_MDMIN, ICHD_MDMOUT, ICHD_MDMLAST = ICHD_MDMOUT };
164enum { ALID_MDMIN, ALID_MDMOUT, ALID_MDMLAST = ALID_MDMOUT };
165
166#define get_ichdev(substream) (substream->runtime->private_data)
167
168struct ichdev {
169 unsigned int ichd; /* ich device number */
170 unsigned long reg_offset; /* offset to bmaddr */
171 u32 *bdbar; /* CPU address (32bit) */
172 unsigned int bdbar_addr; /* PCI bus address (32bit) */
173 struct snd_pcm_substream *substream;
174 unsigned int physbuf; /* physical address (32bit) */
175 unsigned int size;
176 unsigned int fragsize;
177 unsigned int fragsize1;
178 unsigned int position;
179 int frags;
180 int lvi;
181 int lvi_frag;
182 int civ;
183 int ack;
184 int ack_reload;
185 unsigned int ack_bit;
186 unsigned int roff_sr;
187 unsigned int roff_picb;
188 unsigned int int_sta_mask; /* interrupt status mask */
189 unsigned int ali_slot; /* ALI DMA slot */
190 struct snd_ac97 *ac97;
191};
192
193struct intel8x0m {
194 unsigned int device_type;
195
196 int irq;
197
198 void __iomem *addr;
199 void __iomem *bmaddr;
200
201 struct pci_dev *pci;
202 struct snd_card *card;
203
204 int pcm_devs;
205 struct snd_pcm *pcm[2];
206 struct ichdev ichd[2];
207
208 unsigned int in_ac97_init: 1;
209
210 struct snd_ac97_bus *ac97_bus;
211 struct snd_ac97 *ac97;
212
213 spinlock_t reg_lock;
214
215 struct snd_dma_buffer bdbars;
216 u32 bdbars_count;
217 u32 int_sta_reg; /* interrupt status register */
218 u32 int_sta_mask; /* interrupt status mask */
219 unsigned int pcm_pos_shift;
220};
221
222static DEFINE_PCI_DEVICE_TABLE(snd_intel8x0m_ids) = {
223 { PCI_VDEVICE(INTEL, 0x2416), DEVICE_INTEL }, /* 82801AA */
224 { PCI_VDEVICE(INTEL, 0x2426), DEVICE_INTEL }, /* 82901AB */
225 { PCI_VDEVICE(INTEL, 0x2446), DEVICE_INTEL }, /* 82801BA */
226 { PCI_VDEVICE(INTEL, 0x2486), DEVICE_INTEL }, /* ICH3 */
227 { PCI_VDEVICE(INTEL, 0x24c6), DEVICE_INTEL }, /* ICH4 */
228 { PCI_VDEVICE(INTEL, 0x24d6), DEVICE_INTEL }, /* ICH5 */
229 { PCI_VDEVICE(INTEL, 0x266d), DEVICE_INTEL }, /* ICH6 */
230 { PCI_VDEVICE(INTEL, 0x27dd), DEVICE_INTEL }, /* ICH7 */
231 { PCI_VDEVICE(INTEL, 0x7196), DEVICE_INTEL }, /* 440MX */
232 { PCI_VDEVICE(AMD, 0x7446), DEVICE_INTEL }, /* AMD768 */
233 { PCI_VDEVICE(SI, 0x7013), DEVICE_SIS }, /* SI7013 */
234 { PCI_VDEVICE(NVIDIA, 0x01c1), DEVICE_NFORCE }, /* NFORCE */
235 { PCI_VDEVICE(NVIDIA, 0x0069), DEVICE_NFORCE }, /* NFORCE2 */
236 { PCI_VDEVICE(NVIDIA, 0x0089), DEVICE_NFORCE }, /* NFORCE2s */
237 { PCI_VDEVICE(NVIDIA, 0x00d9), DEVICE_NFORCE }, /* NFORCE3 */
238 { PCI_VDEVICE(AMD, 0x746e), DEVICE_INTEL }, /* AMD8111 */
239#if 0
240 { PCI_VDEVICE(AL, 0x5455), DEVICE_ALI }, /* Ali5455 */
241#endif
242 { 0, }
243};
244
245MODULE_DEVICE_TABLE(pci, snd_intel8x0m_ids);
246
247/*
248 * Lowlevel I/O - busmaster
249 */
250
251static inline u8 igetbyte(struct intel8x0m *chip, u32 offset)
252{
253 return ioread8(chip->bmaddr + offset);
254}
255
256static inline u16 igetword(struct intel8x0m *chip, u32 offset)
257{
258 return ioread16(chip->bmaddr + offset);
259}
260
261static inline u32 igetdword(struct intel8x0m *chip, u32 offset)
262{
263 return ioread32(chip->bmaddr + offset);
264}
265
266static inline void iputbyte(struct intel8x0m *chip, u32 offset, u8 val)
267{
268 iowrite8(val, chip->bmaddr + offset);
269}
270
271static inline void iputword(struct intel8x0m *chip, u32 offset, u16 val)
272{
273 iowrite16(val, chip->bmaddr + offset);
274}
275
276static inline void iputdword(struct intel8x0m *chip, u32 offset, u32 val)
277{
278 iowrite32(val, chip->bmaddr + offset);
279}
280
281/*
282 * Lowlevel I/O - AC'97 registers
283 */
284
285static inline u16 iagetword(struct intel8x0m *chip, u32 offset)
286{
287 return ioread16(chip->addr + offset);
288}
289
290static inline void iaputword(struct intel8x0m *chip, u32 offset, u16 val)
291{
292 iowrite16(val, chip->addr + offset);
293}
294
295/*
296 * Basic I/O
297 */
298
299/*
300 * access to AC97 codec via normal i/o (for ICH and SIS7013)
301 */
302
303/* return the GLOB_STA bit for the corresponding codec */
304static unsigned int get_ich_codec_bit(struct intel8x0m *chip, unsigned int codec)
305{
306 static unsigned int codec_bit[3] = {
307 ICH_PCR, ICH_SCR, ICH_TCR
308 };
309 if (snd_BUG_ON(codec >= 3))
310 return ICH_PCR;
311 return codec_bit[codec];
312}
313
314static int snd_intel8x0m_codec_semaphore(struct intel8x0m *chip, unsigned int codec)
315{
316 int time;
317
318 if (codec > 1)
319 return -EIO;
320 codec = get_ich_codec_bit(chip, codec);
321
322 /* codec ready ? */
323 if ((igetdword(chip, ICHREG(GLOB_STA)) & codec) == 0)
324 return -EIO;
325
326 /* Anyone holding a semaphore for 1 msec should be shot... */
327 time = 100;
328 do {
329 if (!(igetbyte(chip, ICHREG(ACC_SEMA)) & ICH_CAS))
330 return 0;
331 udelay(10);
332 } while (time--);
333
334 /* access to some forbidden (non existent) ac97 registers will not
335 * reset the semaphore. So even if you don't get the semaphore, still
336 * continue the access. We don't need the semaphore anyway. */
337 dev_err(chip->card->dev,
338 "codec_semaphore: semaphore is not ready [0x%x][0x%x]\n",
339 igetbyte(chip, ICHREG(ACC_SEMA)), igetdword(chip, ICHREG(GLOB_STA)));
340 iagetword(chip, 0); /* clear semaphore flag */
341 /* I don't care about the semaphore */
342 return -EBUSY;
343}
344
345static void snd_intel8x0m_codec_write(struct snd_ac97 *ac97,
346 unsigned short reg,
347 unsigned short val)
348{
349 struct intel8x0m *chip = ac97->private_data;
350
351 if (snd_intel8x0m_codec_semaphore(chip, ac97->num) < 0) {
352 if (! chip->in_ac97_init)
353 dev_err(chip->card->dev,
354 "codec_write %d: semaphore is not ready for register 0x%x\n",
355 ac97->num, reg);
356 }
357 iaputword(chip, reg + ac97->num * 0x80, val);
358}
359
360static unsigned short snd_intel8x0m_codec_read(struct snd_ac97 *ac97,
361 unsigned short reg)
362{
363 struct intel8x0m *chip = ac97->private_data;
364 unsigned short res;
365 unsigned int tmp;
366
367 if (snd_intel8x0m_codec_semaphore(chip, ac97->num) < 0) {
368 if (! chip->in_ac97_init)
369 dev_err(chip->card->dev,
370 "codec_read %d: semaphore is not ready for register 0x%x\n",
371 ac97->num, reg);
372 res = 0xffff;
373 } else {
374 res = iagetword(chip, reg + ac97->num * 0x80);
375 if ((tmp = igetdword(chip, ICHREG(GLOB_STA))) & ICH_RCS) {
376 /* reset RCS and preserve other R/WC bits */
377 iputdword(chip, ICHREG(GLOB_STA),
378 tmp & ~(ICH_SRI|ICH_PRI|ICH_TRI|ICH_GSCI));
379 if (! chip->in_ac97_init)
380 dev_err(chip->card->dev,
381 "codec_read %d: read timeout for register 0x%x\n",
382 ac97->num, reg);
383 res = 0xffff;
384 }
385 }
386 if (reg == AC97_GPIO_STATUS)
387 iagetword(chip, 0); /* clear semaphore */
388 return res;
389}
390
391
392/*
393 * DMA I/O
394 */
395static void snd_intel8x0m_setup_periods(struct intel8x0m *chip, struct ichdev *ichdev)
396{
397 int idx;
398 u32 *bdbar = ichdev->bdbar;
399 unsigned long port = ichdev->reg_offset;
400
401 iputdword(chip, port + ICH_REG_OFF_BDBAR, ichdev->bdbar_addr);
402 if (ichdev->size == ichdev->fragsize) {
403 ichdev->ack_reload = ichdev->ack = 2;
404 ichdev->fragsize1 = ichdev->fragsize >> 1;
405 for (idx = 0; idx < (ICH_REG_LVI_MASK + 1) * 2; idx += 4) {
406 bdbar[idx + 0] = cpu_to_le32(ichdev->physbuf);
407 bdbar[idx + 1] = cpu_to_le32(0x80000000 | /* interrupt on completion */
408 ichdev->fragsize1 >> chip->pcm_pos_shift);
409 bdbar[idx + 2] = cpu_to_le32(ichdev->physbuf + (ichdev->size >> 1));
410 bdbar[idx + 3] = cpu_to_le32(0x80000000 | /* interrupt on completion */
411 ichdev->fragsize1 >> chip->pcm_pos_shift);
412 }
413 ichdev->frags = 2;
414 } else {
415 ichdev->ack_reload = ichdev->ack = 1;
416 ichdev->fragsize1 = ichdev->fragsize;
417 for (idx = 0; idx < (ICH_REG_LVI_MASK + 1) * 2; idx += 2) {
418 bdbar[idx + 0] = cpu_to_le32(ichdev->physbuf + (((idx >> 1) * ichdev->fragsize) % ichdev->size));
419 bdbar[idx + 1] = cpu_to_le32(0x80000000 | /* interrupt on completion */
420 ichdev->fragsize >> chip->pcm_pos_shift);
421 /*
422 dev_dbg(chip->card->dev, "bdbar[%i] = 0x%x [0x%x]\n",
423 idx + 0, bdbar[idx + 0], bdbar[idx + 1]);
424 */
425 }
426 ichdev->frags = ichdev->size / ichdev->fragsize;
427 }
428 iputbyte(chip, port + ICH_REG_OFF_LVI, ichdev->lvi = ICH_REG_LVI_MASK);
429 ichdev->civ = 0;
430 iputbyte(chip, port + ICH_REG_OFF_CIV, 0);
431 ichdev->lvi_frag = ICH_REG_LVI_MASK % ichdev->frags;
432 ichdev->position = 0;
433#if 0
434 dev_dbg(chip->card->dev,
435 "lvi_frag = %i, frags = %i, period_size = 0x%x, period_size1 = 0x%x\n",
436 ichdev->lvi_frag, ichdev->frags, ichdev->fragsize,
437 ichdev->fragsize1);
438#endif
439 /* clear interrupts */
440 iputbyte(chip, port + ichdev->roff_sr, ICH_FIFOE | ICH_BCIS | ICH_LVBCI);
441}
442
443/*
444 * Interrupt handler
445 */
446
447static inline void snd_intel8x0m_update(struct intel8x0m *chip, struct ichdev *ichdev)
448{
449 unsigned long port = ichdev->reg_offset;
450 int civ, i, step;
451 int ack = 0;
452
453 civ = igetbyte(chip, port + ICH_REG_OFF_CIV);
454 if (civ == ichdev->civ) {
455 // snd_printd("civ same %d\n", civ);
456 step = 1;
457 ichdev->civ++;
458 ichdev->civ &= ICH_REG_LVI_MASK;
459 } else {
460 step = civ - ichdev->civ;
461 if (step < 0)
462 step += ICH_REG_LVI_MASK + 1;
463 // if (step != 1)
464 // snd_printd("step = %d, %d -> %d\n", step, ichdev->civ, civ);
465 ichdev->civ = civ;
466 }
467
468 ichdev->position += step * ichdev->fragsize1;
469 ichdev->position %= ichdev->size;
470 ichdev->lvi += step;
471 ichdev->lvi &= ICH_REG_LVI_MASK;
472 iputbyte(chip, port + ICH_REG_OFF_LVI, ichdev->lvi);
473 for (i = 0; i < step; i++) {
474 ichdev->lvi_frag++;
475 ichdev->lvi_frag %= ichdev->frags;
476 ichdev->bdbar[ichdev->lvi * 2] = cpu_to_le32(ichdev->physbuf +
477 ichdev->lvi_frag *
478 ichdev->fragsize1);
479#if 0
480 dev_dbg(chip->card->dev,
481 "new: bdbar[%i] = 0x%x [0x%x], prefetch = %i, all = 0x%x, 0x%x\n",
482 ichdev->lvi * 2, ichdev->bdbar[ichdev->lvi * 2],
483 ichdev->bdbar[ichdev->lvi * 2 + 1], inb(ICH_REG_OFF_PIV + port),
484 inl(port + 4), inb(port + ICH_REG_OFF_CR));
485#endif
486 if (--ichdev->ack == 0) {
487 ichdev->ack = ichdev->ack_reload;
488 ack = 1;
489 }
490 }
491 if (ack && ichdev->substream) {
492 spin_unlock(&chip->reg_lock);
493 snd_pcm_period_elapsed(ichdev->substream);
494 spin_lock(&chip->reg_lock);
495 }
496 iputbyte(chip, port + ichdev->roff_sr, ICH_FIFOE | ICH_BCIS | ICH_LVBCI);
497}
498
499static irqreturn_t snd_intel8x0m_interrupt(int irq, void *dev_id)
500{
501 struct intel8x0m *chip = dev_id;
502 struct ichdev *ichdev;
503 unsigned int status;
504 unsigned int i;
505
506 spin_lock(&chip->reg_lock);
507 status = igetdword(chip, chip->int_sta_reg);
508 if (status == 0xffffffff) { /* we are not yet resumed */
509 spin_unlock(&chip->reg_lock);
510 return IRQ_NONE;
511 }
512 if ((status & chip->int_sta_mask) == 0) {
513 if (status)
514 iputdword(chip, chip->int_sta_reg, status);
515 spin_unlock(&chip->reg_lock);
516 return IRQ_NONE;
517 }
518
519 for (i = 0; i < chip->bdbars_count; i++) {
520 ichdev = &chip->ichd[i];
521 if (status & ichdev->int_sta_mask)
522 snd_intel8x0m_update(chip, ichdev);
523 }
524
525 /* ack them */
526 iputdword(chip, chip->int_sta_reg, status & chip->int_sta_mask);
527 spin_unlock(&chip->reg_lock);
528
529 return IRQ_HANDLED;
530}
531
532/*
533 * PCM part
534 */
535
536static int snd_intel8x0m_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
537{
538 struct intel8x0m *chip = snd_pcm_substream_chip(substream);
539 struct ichdev *ichdev = get_ichdev(substream);
540 unsigned char val = 0;
541 unsigned long port = ichdev->reg_offset;
542
543 switch (cmd) {
544 case SNDRV_PCM_TRIGGER_START:
545 case SNDRV_PCM_TRIGGER_RESUME:
546 val = ICH_IOCE | ICH_STARTBM;
547 break;
548 case SNDRV_PCM_TRIGGER_STOP:
549 case SNDRV_PCM_TRIGGER_SUSPEND:
550 val = 0;
551 break;
552 case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
553 val = ICH_IOCE;
554 break;
555 case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
556 val = ICH_IOCE | ICH_STARTBM;
557 break;
558 default:
559 return -EINVAL;
560 }
561 iputbyte(chip, port + ICH_REG_OFF_CR, val);
562 if (cmd == SNDRV_PCM_TRIGGER_STOP) {
563 /* wait until DMA stopped */
564 while (!(igetbyte(chip, port + ichdev->roff_sr) & ICH_DCH)) ;
565 /* reset whole DMA things */
566 iputbyte(chip, port + ICH_REG_OFF_CR, ICH_RESETREGS);
567 }
568 return 0;
569}
570
571static int snd_intel8x0m_hw_params(struct snd_pcm_substream *substream,
572 struct snd_pcm_hw_params *hw_params)
573{
574 return snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
575}
576
577static int snd_intel8x0m_hw_free(struct snd_pcm_substream *substream)
578{
579 return snd_pcm_lib_free_pages(substream);
580}
581
582static snd_pcm_uframes_t snd_intel8x0m_pcm_pointer(struct snd_pcm_substream *substream)
583{
584 struct intel8x0m *chip = snd_pcm_substream_chip(substream);
585 struct ichdev *ichdev = get_ichdev(substream);
586 size_t ptr1, ptr;
587
588 ptr1 = igetword(chip, ichdev->reg_offset + ichdev->roff_picb) << chip->pcm_pos_shift;
589 if (ptr1 != 0)
590 ptr = ichdev->fragsize1 - ptr1;
591 else
592 ptr = 0;
593 ptr += ichdev->position;
594 if (ptr >= ichdev->size)
595 return 0;
596 return bytes_to_frames(substream->runtime, ptr);
597}
598
599static int snd_intel8x0m_pcm_prepare(struct snd_pcm_substream *substream)
600{
601 struct intel8x0m *chip = snd_pcm_substream_chip(substream);
602 struct snd_pcm_runtime *runtime = substream->runtime;
603 struct ichdev *ichdev = get_ichdev(substream);
604
605 ichdev->physbuf = runtime->dma_addr;
606 ichdev->size = snd_pcm_lib_buffer_bytes(substream);
607 ichdev->fragsize = snd_pcm_lib_period_bytes(substream);
608 snd_ac97_write(ichdev->ac97, AC97_LINE1_RATE, runtime->rate);
609 snd_ac97_write(ichdev->ac97, AC97_LINE1_LEVEL, 0);
610 snd_intel8x0m_setup_periods(chip, ichdev);
611 return 0;
612}
613
614static struct snd_pcm_hardware snd_intel8x0m_stream =
615{
616 .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
617 SNDRV_PCM_INFO_BLOCK_TRANSFER |
618 SNDRV_PCM_INFO_MMAP_VALID |
619 SNDRV_PCM_INFO_PAUSE |
620 SNDRV_PCM_INFO_RESUME),
621 .formats = SNDRV_PCM_FMTBIT_S16_LE,
622 .rates = SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_KNOT,
623 .rate_min = 8000,
624 .rate_max = 16000,
625 .channels_min = 1,
626 .channels_max = 1,
627 .buffer_bytes_max = 64 * 1024,
628 .period_bytes_min = 32,
629 .period_bytes_max = 64 * 1024,
630 .periods_min = 1,
631 .periods_max = 1024,
632 .fifo_size = 0,
633};
634
635
636static int snd_intel8x0m_pcm_open(struct snd_pcm_substream *substream, struct ichdev *ichdev)
637{
638 static unsigned int rates[] = { 8000, 9600, 12000, 16000 };
639 static struct snd_pcm_hw_constraint_list hw_constraints_rates = {
640 .count = ARRAY_SIZE(rates),
641 .list = rates,
642 .mask = 0,
643 };
644 struct snd_pcm_runtime *runtime = substream->runtime;
645 int err;
646
647 ichdev->substream = substream;
648 runtime->hw = snd_intel8x0m_stream;
649 err = snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
650 &hw_constraints_rates);
651 if ( err < 0 )
652 return err;
653 runtime->private_data = ichdev;
654 return 0;
655}
656
657static int snd_intel8x0m_playback_open(struct snd_pcm_substream *substream)
658{
659 struct intel8x0m *chip = snd_pcm_substream_chip(substream);
660
661 return snd_intel8x0m_pcm_open(substream, &chip->ichd[ICHD_MDMOUT]);
662}
663
664static int snd_intel8x0m_playback_close(struct snd_pcm_substream *substream)
665{
666 struct intel8x0m *chip = snd_pcm_substream_chip(substream);
667
668 chip->ichd[ICHD_MDMOUT].substream = NULL;
669 return 0;
670}
671
672static int snd_intel8x0m_capture_open(struct snd_pcm_substream *substream)
673{
674 struct intel8x0m *chip = snd_pcm_substream_chip(substream);
675
676 return snd_intel8x0m_pcm_open(substream, &chip->ichd[ICHD_MDMIN]);
677}
678
679static int snd_intel8x0m_capture_close(struct snd_pcm_substream *substream)
680{
681 struct intel8x0m *chip = snd_pcm_substream_chip(substream);
682
683 chip->ichd[ICHD_MDMIN].substream = NULL;
684 return 0;
685}
686
687
688static struct snd_pcm_ops snd_intel8x0m_playback_ops = {
689 .open = snd_intel8x0m_playback_open,
690 .close = snd_intel8x0m_playback_close,
691 .ioctl = snd_pcm_lib_ioctl,
692 .hw_params = snd_intel8x0m_hw_params,
693 .hw_free = snd_intel8x0m_hw_free,
694 .prepare = snd_intel8x0m_pcm_prepare,
695 .trigger = snd_intel8x0m_pcm_trigger,
696 .pointer = snd_intel8x0m_pcm_pointer,
697};
698
699static struct snd_pcm_ops snd_intel8x0m_capture_ops = {
700 .open = snd_intel8x0m_capture_open,
701 .close = snd_intel8x0m_capture_close,
702 .ioctl = snd_pcm_lib_ioctl,
703 .hw_params = snd_intel8x0m_hw_params,
704 .hw_free = snd_intel8x0m_hw_free,
705 .prepare = snd_intel8x0m_pcm_prepare,
706 .trigger = snd_intel8x0m_pcm_trigger,
707 .pointer = snd_intel8x0m_pcm_pointer,
708};
709
710
711struct ich_pcm_table {
712 char *suffix;
713 struct snd_pcm_ops *playback_ops;
714 struct snd_pcm_ops *capture_ops;
715 size_t prealloc_size;
716 size_t prealloc_max_size;
717 int ac97_idx;
718};
719
720static int snd_intel8x0m_pcm1(struct intel8x0m *chip, int device,
721 struct ich_pcm_table *rec)
722{
723 struct snd_pcm *pcm;
724 int err;
725 char name[32];
726
727 if (rec->suffix)
728 sprintf(name, "Intel ICH - %s", rec->suffix);
729 else
730 strcpy(name, "Intel ICH");
731 err = snd_pcm_new(chip->card, name, device,
732 rec->playback_ops ? 1 : 0,
733 rec->capture_ops ? 1 : 0, &pcm);
734 if (err < 0)
735 return err;
736
737 if (rec->playback_ops)
738 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, rec->playback_ops);
739 if (rec->capture_ops)
740 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, rec->capture_ops);
741
742 pcm->private_data = chip;
743 pcm->info_flags = 0;
744 pcm->dev_class = SNDRV_PCM_CLASS_MODEM;
745 if (rec->suffix)
746 sprintf(pcm->name, "%s - %s", chip->card->shortname, rec->suffix);
747 else
748 strcpy(pcm->name, chip->card->shortname);
749 chip->pcm[device] = pcm;
750
751 snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
752 snd_dma_pci_data(chip->pci),
753 rec->prealloc_size,
754 rec->prealloc_max_size);
755
756 return 0;
757}
758
759static struct ich_pcm_table intel_pcms[] = {
760 {
761 .suffix = "Modem",
762 .playback_ops = &snd_intel8x0m_playback_ops,
763 .capture_ops = &snd_intel8x0m_capture_ops,
764 .prealloc_size = 32 * 1024,
765 .prealloc_max_size = 64 * 1024,
766 },
767};
768
769static int snd_intel8x0m_pcm(struct intel8x0m *chip)
770{
771 int i, tblsize, device, err;
772 struct ich_pcm_table *tbl, *rec;
773
774#if 1
775 tbl = intel_pcms;
776 tblsize = 1;
777#else
778 switch (chip->device_type) {
779 case DEVICE_NFORCE:
780 tbl = nforce_pcms;
781 tblsize = ARRAY_SIZE(nforce_pcms);
782 break;
783 case DEVICE_ALI:
784 tbl = ali_pcms;
785 tblsize = ARRAY_SIZE(ali_pcms);
786 break;
787 default:
788 tbl = intel_pcms;
789 tblsize = 2;
790 break;
791 }
792#endif
793 device = 0;
794 for (i = 0; i < tblsize; i++) {
795 rec = tbl + i;
796 if (i > 0 && rec->ac97_idx) {
797 /* activate PCM only when associated AC'97 codec */
798 if (! chip->ichd[rec->ac97_idx].ac97)
799 continue;
800 }
801 err = snd_intel8x0m_pcm1(chip, device, rec);
802 if (err < 0)
803 return err;
804 device++;
805 }
806
807 chip->pcm_devs = device;
808 return 0;
809}
810
811
812/*
813 * Mixer part
814 */
815
816static void snd_intel8x0m_mixer_free_ac97_bus(struct snd_ac97_bus *bus)
817{
818 struct intel8x0m *chip = bus->private_data;
819 chip->ac97_bus = NULL;
820}
821
822static void snd_intel8x0m_mixer_free_ac97(struct snd_ac97 *ac97)
823{
824 struct intel8x0m *chip = ac97->private_data;
825 chip->ac97 = NULL;
826}
827
828
829static int snd_intel8x0m_mixer(struct intel8x0m *chip, int ac97_clock)
830{
831 struct snd_ac97_bus *pbus;
832 struct snd_ac97_template ac97;
833 struct snd_ac97 *x97;
834 int err;
835 unsigned int glob_sta = 0;
836 static struct snd_ac97_bus_ops ops = {
837 .write = snd_intel8x0m_codec_write,
838 .read = snd_intel8x0m_codec_read,
839 };
840
841 chip->in_ac97_init = 1;
842
843 memset(&ac97, 0, sizeof(ac97));
844 ac97.private_data = chip;
845 ac97.private_free = snd_intel8x0m_mixer_free_ac97;
846 ac97.scaps = AC97_SCAP_SKIP_AUDIO | AC97_SCAP_POWER_SAVE;
847
848 glob_sta = igetdword(chip, ICHREG(GLOB_STA));
849
850 if ((err = snd_ac97_bus(chip->card, 0, &ops, chip, &pbus)) < 0)
851 goto __err;
852 pbus->private_free = snd_intel8x0m_mixer_free_ac97_bus;
853 if (ac97_clock >= 8000 && ac97_clock <= 48000)
854 pbus->clock = ac97_clock;
855 chip->ac97_bus = pbus;
856
857 ac97.pci = chip->pci;
858 ac97.num = glob_sta & ICH_SCR ? 1 : 0;
859 if ((err = snd_ac97_mixer(pbus, &ac97, &x97)) < 0) {
860 dev_err(chip->card->dev,
861 "Unable to initialize codec #%d\n", ac97.num);
862 if (ac97.num == 0)
863 goto __err;
864 return err;
865 }
866 chip->ac97 = x97;
867 if(ac97_is_modem(x97) && !chip->ichd[ICHD_MDMIN].ac97) {
868 chip->ichd[ICHD_MDMIN].ac97 = x97;
869 chip->ichd[ICHD_MDMOUT].ac97 = x97;
870 }
871
872 chip->in_ac97_init = 0;
873 return 0;
874
875 __err:
876 /* clear the cold-reset bit for the next chance */
877 if (chip->device_type != DEVICE_ALI)
878 iputdword(chip, ICHREG(GLOB_CNT),
879 igetdword(chip, ICHREG(GLOB_CNT)) & ~ICH_AC97COLD);
880 return err;
881}
882
883
884/*
885 *
886 */
887
888static int snd_intel8x0m_ich_chip_init(struct intel8x0m *chip, int probing)
889{
890 unsigned long end_time;
891 unsigned int cnt, status, nstatus;
892
893 /* put logic to right state */
894 /* first clear status bits */
895 status = ICH_RCS | ICH_MIINT | ICH_MOINT;
896 cnt = igetdword(chip, ICHREG(GLOB_STA));
897 iputdword(chip, ICHREG(GLOB_STA), cnt & status);
898
899 /* ACLink on, 2 channels */
900 cnt = igetdword(chip, ICHREG(GLOB_CNT));
901 cnt &= ~(ICH_ACLINK);
902 /* finish cold or do warm reset */
903 cnt |= (cnt & ICH_AC97COLD) == 0 ? ICH_AC97COLD : ICH_AC97WARM;
904 iputdword(chip, ICHREG(GLOB_CNT), cnt);
905 usleep_range(500, 1000); /* give warm reset some time */
906 end_time = jiffies + HZ / 4;
907 do {
908 if ((igetdword(chip, ICHREG(GLOB_CNT)) & ICH_AC97WARM) == 0)
909 goto __ok;
910 schedule_timeout_uninterruptible(1);
911 } while (time_after_eq(end_time, jiffies));
912 dev_err(chip->card->dev, "AC'97 warm reset still in progress? [0x%x]\n",
913 igetdword(chip, ICHREG(GLOB_CNT)));
914 return -EIO;
915
916 __ok:
917 if (probing) {
918 /* wait for any codec ready status.
919 * Once it becomes ready it should remain ready
920 * as long as we do not disable the ac97 link.
921 */
922 end_time = jiffies + HZ;
923 do {
924 status = igetdword(chip, ICHREG(GLOB_STA)) &
925 (ICH_PCR | ICH_SCR | ICH_TCR);
926 if (status)
927 break;
928 schedule_timeout_uninterruptible(1);
929 } while (time_after_eq(end_time, jiffies));
930 if (! status) {
931 /* no codec is found */
932 dev_err(chip->card->dev,
933 "codec_ready: codec is not ready [0x%x]\n",
934 igetdword(chip, ICHREG(GLOB_STA)));
935 return -EIO;
936 }
937
938 /* up to two codecs (modem cannot be tertiary with ICH4) */
939 nstatus = ICH_PCR | ICH_SCR;
940
941 /* wait for other codecs ready status. */
942 end_time = jiffies + HZ / 4;
943 while (status != nstatus && time_after_eq(end_time, jiffies)) {
944 schedule_timeout_uninterruptible(1);
945 status |= igetdword(chip, ICHREG(GLOB_STA)) & nstatus;
946 }
947
948 } else {
949 /* resume phase */
950 status = 0;
951 if (chip->ac97)
952 status |= get_ich_codec_bit(chip, chip->ac97->num);
953 /* wait until all the probed codecs are ready */
954 end_time = jiffies + HZ;
955 do {
956 nstatus = igetdword(chip, ICHREG(GLOB_STA)) &
957 (ICH_PCR | ICH_SCR | ICH_TCR);
958 if (status == nstatus)
959 break;
960 schedule_timeout_uninterruptible(1);
961 } while (time_after_eq(end_time, jiffies));
962 }
963
964 if (chip->device_type == DEVICE_SIS) {
965 /* unmute the output on SIS7012 */
966 iputword(chip, 0x4c, igetword(chip, 0x4c) | 1);
967 }
968
969 return 0;
970}
971
972static int snd_intel8x0m_chip_init(struct intel8x0m *chip, int probing)
973{
974 unsigned int i;
975 int err;
976
977 if ((err = snd_intel8x0m_ich_chip_init(chip, probing)) < 0)
978 return err;
979 iagetword(chip, 0); /* clear semaphore flag */
980
981 /* disable interrupts */
982 for (i = 0; i < chip->bdbars_count; i++)
983 iputbyte(chip, ICH_REG_OFF_CR + chip->ichd[i].reg_offset, 0x00);
984 /* reset channels */
985 for (i = 0; i < chip->bdbars_count; i++)
986 iputbyte(chip, ICH_REG_OFF_CR + chip->ichd[i].reg_offset, ICH_RESETREGS);
987 /* initialize Buffer Descriptor Lists */
988 for (i = 0; i < chip->bdbars_count; i++)
989 iputdword(chip, ICH_REG_OFF_BDBAR + chip->ichd[i].reg_offset, chip->ichd[i].bdbar_addr);
990 return 0;
991}
992
993static int snd_intel8x0m_free(struct intel8x0m *chip)
994{
995 unsigned int i;
996
997 if (chip->irq < 0)
998 goto __hw_end;
999 /* disable interrupts */
1000 for (i = 0; i < chip->bdbars_count; i++)
1001 iputbyte(chip, ICH_REG_OFF_CR + chip->ichd[i].reg_offset, 0x00);
1002 /* reset channels */
1003 for (i = 0; i < chip->bdbars_count; i++)
1004 iputbyte(chip, ICH_REG_OFF_CR + chip->ichd[i].reg_offset, ICH_RESETREGS);
1005 __hw_end:
1006 if (chip->irq >= 0)
1007 free_irq(chip->irq, chip);
1008 if (chip->bdbars.area)
1009 snd_dma_free_pages(&chip->bdbars);
1010 if (chip->addr)
1011 pci_iounmap(chip->pci, chip->addr);
1012 if (chip->bmaddr)
1013 pci_iounmap(chip->pci, chip->bmaddr);
1014 pci_release_regions(chip->pci);
1015 pci_disable_device(chip->pci);
1016 kfree(chip);
1017 return 0;
1018}
1019
1020#ifdef CONFIG_PM_SLEEP
1021/*
1022 * power management
1023 */
1024static int intel8x0m_suspend(struct device *dev)
1025{
1026 struct pci_dev *pci = to_pci_dev(dev);
1027 struct snd_card *card = dev_get_drvdata(dev);
1028 struct intel8x0m *chip = card->private_data;
1029 int i;
1030
1031 snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
1032 for (i = 0; i < chip->pcm_devs; i++)
1033 snd_pcm_suspend_all(chip->pcm[i]);
1034 snd_ac97_suspend(chip->ac97);
1035 if (chip->irq >= 0) {
1036 free_irq(chip->irq, chip);
1037 chip->irq = -1;
1038 }
1039 pci_disable_device(pci);
1040 pci_save_state(pci);
1041 pci_set_power_state(pci, PCI_D3hot);
1042 return 0;
1043}
1044
1045static int intel8x0m_resume(struct device *dev)
1046{
1047 struct pci_dev *pci = to_pci_dev(dev);
1048 struct snd_card *card = dev_get_drvdata(dev);
1049 struct intel8x0m *chip = card->private_data;
1050
1051 pci_set_power_state(pci, PCI_D0);
1052 pci_restore_state(pci);
1053 if (pci_enable_device(pci) < 0) {
1054 dev_err(dev, "pci_enable_device failed, disabling device\n");
1055 snd_card_disconnect(card);
1056 return -EIO;
1057 }
1058 pci_set_master(pci);
1059 if (request_irq(pci->irq, snd_intel8x0m_interrupt,
1060 IRQF_SHARED, KBUILD_MODNAME, chip)) {
1061 dev_err(dev, "unable to grab IRQ %d, disabling device\n",
1062 pci->irq);
1063 snd_card_disconnect(card);
1064 return -EIO;
1065 }
1066 chip->irq = pci->irq;
1067 snd_intel8x0m_chip_init(chip, 0);
1068 snd_ac97_resume(chip->ac97);
1069
1070 snd_power_change_state(card, SNDRV_CTL_POWER_D0);
1071 return 0;
1072}
1073
1074static SIMPLE_DEV_PM_OPS(intel8x0m_pm, intel8x0m_suspend, intel8x0m_resume);
1075#define INTEL8X0M_PM_OPS &intel8x0m_pm
1076#else
1077#define INTEL8X0M_PM_OPS NULL
1078#endif /* CONFIG_PM_SLEEP */
1079
1080#ifdef CONFIG_PROC_FS
1081static void snd_intel8x0m_proc_read(struct snd_info_entry * entry,
1082 struct snd_info_buffer *buffer)
1083{
1084 struct intel8x0m *chip = entry->private_data;
1085 unsigned int tmp;
1086
1087 snd_iprintf(buffer, "Intel8x0m\n\n");
1088 if (chip->device_type == DEVICE_ALI)
1089 return;
1090 tmp = igetdword(chip, ICHREG(GLOB_STA));
1091 snd_iprintf(buffer, "Global control : 0x%08x\n",
1092 igetdword(chip, ICHREG(GLOB_CNT)));
1093 snd_iprintf(buffer, "Global status : 0x%08x\n", tmp);
1094 snd_iprintf(buffer, "AC'97 codecs ready :%s%s%s%s\n",
1095 tmp & ICH_PCR ? " primary" : "",
1096 tmp & ICH_SCR ? " secondary" : "",
1097 tmp & ICH_TCR ? " tertiary" : "",
1098 (tmp & (ICH_PCR | ICH_SCR | ICH_TCR)) == 0 ? " none" : "");
1099}
1100
1101static void snd_intel8x0m_proc_init(struct intel8x0m *chip)
1102{
1103 struct snd_info_entry *entry;
1104
1105 if (! snd_card_proc_new(chip->card, "intel8x0m", &entry))
1106 snd_info_set_text_ops(entry, chip, snd_intel8x0m_proc_read);
1107}
1108#else /* !CONFIG_PROC_FS */
1109#define snd_intel8x0m_proc_init(chip)
1110#endif /* CONFIG_PROC_FS */
1111
1112
1113static int snd_intel8x0m_dev_free(struct snd_device *device)
1114{
1115 struct intel8x0m *chip = device->device_data;
1116 return snd_intel8x0m_free(chip);
1117}
1118
1119struct ich_reg_info {
1120 unsigned int int_sta_mask;
1121 unsigned int offset;
1122};
1123
1124static int snd_intel8x0m_create(struct snd_card *card,
1125 struct pci_dev *pci,
1126 unsigned long device_type,
1127 struct intel8x0m **r_intel8x0m)
1128{
1129 struct intel8x0m *chip;
1130 int err;
1131 unsigned int i;
1132 unsigned int int_sta_masks;
1133 struct ichdev *ichdev;
1134 static struct snd_device_ops ops = {
1135 .dev_free = snd_intel8x0m_dev_free,
1136 };
1137 static struct ich_reg_info intel_regs[2] = {
1138 { ICH_MIINT, 0 },
1139 { ICH_MOINT, 0x10 },
1140 };
1141 struct ich_reg_info *tbl;
1142
1143 *r_intel8x0m = NULL;
1144
1145 if ((err = pci_enable_device(pci)) < 0)
1146 return err;
1147
1148 chip = kzalloc(sizeof(*chip), GFP_KERNEL);
1149 if (chip == NULL) {
1150 pci_disable_device(pci);
1151 return -ENOMEM;
1152 }
1153 spin_lock_init(&chip->reg_lock);
1154 chip->device_type = device_type;
1155 chip->card = card;
1156 chip->pci = pci;
1157 chip->irq = -1;
1158
1159 if ((err = pci_request_regions(pci, card->shortname)) < 0) {
1160 kfree(chip);
1161 pci_disable_device(pci);
1162 return err;
1163 }
1164
1165 if (device_type == DEVICE_ALI) {
1166 /* ALI5455 has no ac97 region */
1167 chip->bmaddr = pci_iomap(pci, 0, 0);
1168 goto port_inited;
1169 }
1170
1171 if (pci_resource_flags(pci, 2) & IORESOURCE_MEM) /* ICH4 and Nforce */
1172 chip->addr = pci_iomap(pci, 2, 0);
1173 else
1174 chip->addr = pci_iomap(pci, 0, 0);
1175 if (!chip->addr) {
1176 dev_err(card->dev, "AC'97 space ioremap problem\n");
1177 snd_intel8x0m_free(chip);
1178 return -EIO;
1179 }
1180 if (pci_resource_flags(pci, 3) & IORESOURCE_MEM) /* ICH4 */
1181 chip->bmaddr = pci_iomap(pci, 3, 0);
1182 else
1183 chip->bmaddr = pci_iomap(pci, 1, 0);
1184 if (!chip->bmaddr) {
1185 dev_err(card->dev, "Controller space ioremap problem\n");
1186 snd_intel8x0m_free(chip);
1187 return -EIO;
1188 }
1189
1190 port_inited:
1191 if (request_irq(pci->irq, snd_intel8x0m_interrupt, IRQF_SHARED,
1192 KBUILD_MODNAME, chip)) {
1193 dev_err(card->dev, "unable to grab IRQ %d\n", pci->irq);
1194 snd_intel8x0m_free(chip);
1195 return -EBUSY;
1196 }
1197 chip->irq = pci->irq;
1198 pci_set_master(pci);
1199 synchronize_irq(chip->irq);
1200
1201 /* initialize offsets */
1202 chip->bdbars_count = 2;
1203 tbl = intel_regs;
1204
1205 for (i = 0; i < chip->bdbars_count; i++) {
1206 ichdev = &chip->ichd[i];
1207 ichdev->ichd = i;
1208 ichdev->reg_offset = tbl[i].offset;
1209 ichdev->int_sta_mask = tbl[i].int_sta_mask;
1210 if (device_type == DEVICE_SIS) {
1211 /* SiS 7013 swaps the registers */
1212 ichdev->roff_sr = ICH_REG_OFF_PICB;
1213 ichdev->roff_picb = ICH_REG_OFF_SR;
1214 } else {
1215 ichdev->roff_sr = ICH_REG_OFF_SR;
1216 ichdev->roff_picb = ICH_REG_OFF_PICB;
1217 }
1218 if (device_type == DEVICE_ALI)
1219 ichdev->ali_slot = (ichdev->reg_offset - 0x40) / 0x10;
1220 }
1221 /* SIS7013 handles the pcm data in bytes, others are in words */
1222 chip->pcm_pos_shift = (device_type == DEVICE_SIS) ? 0 : 1;
1223
1224 /* allocate buffer descriptor lists */
1225 /* the start of each lists must be aligned to 8 bytes */
1226 if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci),
1227 chip->bdbars_count * sizeof(u32) * ICH_MAX_FRAGS * 2,
1228 &chip->bdbars) < 0) {
1229 snd_intel8x0m_free(chip);
1230 return -ENOMEM;
1231 }
1232 /* tables must be aligned to 8 bytes here, but the kernel pages
1233 are much bigger, so we don't care (on i386) */
1234 int_sta_masks = 0;
1235 for (i = 0; i < chip->bdbars_count; i++) {
1236 ichdev = &chip->ichd[i];
1237 ichdev->bdbar = ((u32 *)chip->bdbars.area) + (i * ICH_MAX_FRAGS * 2);
1238 ichdev->bdbar_addr = chip->bdbars.addr + (i * sizeof(u32) * ICH_MAX_FRAGS * 2);
1239 int_sta_masks |= ichdev->int_sta_mask;
1240 }
1241 chip->int_sta_reg = ICH_REG_GLOB_STA;
1242 chip->int_sta_mask = int_sta_masks;
1243
1244 if ((err = snd_intel8x0m_chip_init(chip, 1)) < 0) {
1245 snd_intel8x0m_free(chip);
1246 return err;
1247 }
1248
1249 if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
1250 snd_intel8x0m_free(chip);
1251 return err;
1252 }
1253
1254 *r_intel8x0m = chip;
1255 return 0;
1256}
1257
1258static struct shortname_table {
1259 unsigned int id;
1260 const char *s;
1261} shortnames[] = {
1262 { PCI_DEVICE_ID_INTEL_82801AA_6, "Intel 82801AA-ICH" },
1263 { PCI_DEVICE_ID_INTEL_82801AB_6, "Intel 82901AB-ICH0" },
1264 { PCI_DEVICE_ID_INTEL_82801BA_6, "Intel 82801BA-ICH2" },
1265 { PCI_DEVICE_ID_INTEL_440MX_6, "Intel 440MX" },
1266 { PCI_DEVICE_ID_INTEL_82801CA_6, "Intel 82801CA-ICH3" },
1267 { PCI_DEVICE_ID_INTEL_82801DB_6, "Intel 82801DB-ICH4" },
1268 { PCI_DEVICE_ID_INTEL_82801EB_6, "Intel ICH5" },
1269 { PCI_DEVICE_ID_INTEL_ICH6_17, "Intel ICH6" },
1270 { PCI_DEVICE_ID_INTEL_ICH7_19, "Intel ICH7" },
1271 { 0x7446, "AMD AMD768" },
1272 { PCI_DEVICE_ID_SI_7013, "SiS SI7013" },
1273 { PCI_DEVICE_ID_NVIDIA_MCP1_MODEM, "NVidia nForce" },
1274 { PCI_DEVICE_ID_NVIDIA_MCP2_MODEM, "NVidia nForce2" },
1275 { PCI_DEVICE_ID_NVIDIA_MCP2S_MODEM, "NVidia nForce2s" },
1276 { PCI_DEVICE_ID_NVIDIA_MCP3_MODEM, "NVidia nForce3" },
1277 { 0x746e, "AMD AMD8111" },
1278#if 0
1279 { 0x5455, "ALi M5455" },
1280#endif
1281 { 0 },
1282};
1283
1284static int snd_intel8x0m_probe(struct pci_dev *pci,
1285 const struct pci_device_id *pci_id)
1286{
1287 struct snd_card *card;
1288 struct intel8x0m *chip;
1289 int err;
1290 struct shortname_table *name;
1291
1292 err = snd_card_new(&pci->dev, index, id, THIS_MODULE, 0, &card);
1293 if (err < 0)
1294 return err;
1295
1296 strcpy(card->driver, "ICH-MODEM");
1297 strcpy(card->shortname, "Intel ICH");
1298 for (name = shortnames; name->id; name++) {
1299 if (pci->device == name->id) {
1300 strcpy(card->shortname, name->s);
1301 break;
1302 }
1303 }
1304 strcat(card->shortname," Modem");
1305
1306 if ((err = snd_intel8x0m_create(card, pci, pci_id->driver_data, &chip)) < 0) {
1307 snd_card_free(card);
1308 return err;
1309 }
1310 card->private_data = chip;
1311
1312 if ((err = snd_intel8x0m_mixer(chip, ac97_clock)) < 0) {
1313 snd_card_free(card);
1314 return err;
1315 }
1316 if ((err = snd_intel8x0m_pcm(chip)) < 0) {
1317 snd_card_free(card);
1318 return err;
1319 }
1320
1321 snd_intel8x0m_proc_init(chip);
1322
1323 sprintf(card->longname, "%s at irq %i",
1324 card->shortname, chip->irq);
1325
1326 if ((err = snd_card_register(card)) < 0) {
1327 snd_card_free(card);
1328 return err;
1329 }
1330 pci_set_drvdata(pci, card);
1331 return 0;
1332}
1333
1334static void snd_intel8x0m_remove(struct pci_dev *pci)
1335{
1336 snd_card_free(pci_get_drvdata(pci));
1337}
1338
1339static struct pci_driver intel8x0m_driver = {
1340 .name = KBUILD_MODNAME,
1341 .id_table = snd_intel8x0m_ids,
1342 .probe = snd_intel8x0m_probe,
1343 .remove = snd_intel8x0m_remove,
1344 .driver = {
1345 .pm = INTEL8X0M_PM_OPS,
1346 },
1347};
1348
1349module_pci_driver(intel8x0m_driver);
1/*
2 * ALSA modem driver for Intel ICH (i8x0) chipsets
3 *
4 * Copyright (c) 2000 Jaroslav Kysela <perex@perex.cz>
5 *
6 * This is modified (by Sasha Khapyorsky <sashak@alsa-project.org>) version
7 * of ALSA ICH sound driver intel8x0.c .
8 *
9 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
14 *
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
19 *
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23 *
24 */
25
26#include <asm/io.h>
27#include <linux/delay.h>
28#include <linux/interrupt.h>
29#include <linux/init.h>
30#include <linux/pci.h>
31#include <linux/slab.h>
32#include <linux/module.h>
33#include <sound/core.h>
34#include <sound/pcm.h>
35#include <sound/ac97_codec.h>
36#include <sound/info.h>
37#include <sound/initval.h>
38
39MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
40MODULE_DESCRIPTION("Intel 82801AA,82901AB,i810,i820,i830,i840,i845,MX440; "
41 "SiS 7013; NVidia MCP/2/2S/3 modems");
42MODULE_LICENSE("GPL");
43MODULE_SUPPORTED_DEVICE("{{Intel,82801AA-ICH},"
44 "{Intel,82901AB-ICH0},"
45 "{Intel,82801BA-ICH2},"
46 "{Intel,82801CA-ICH3},"
47 "{Intel,82801DB-ICH4},"
48 "{Intel,ICH5},"
49 "{Intel,ICH6},"
50 "{Intel,ICH7},"
51 "{Intel,MX440},"
52 "{SiS,7013},"
53 "{NVidia,NForce Modem},"
54 "{NVidia,NForce2 Modem},"
55 "{NVidia,NForce2s Modem},"
56 "{NVidia,NForce3 Modem},"
57 "{AMD,AMD768}}");
58
59static int index = -2; /* Exclude the first card */
60static char *id = SNDRV_DEFAULT_STR1; /* ID for this card */
61static int ac97_clock;
62
63module_param(index, int, 0444);
64MODULE_PARM_DESC(index, "Index value for Intel i8x0 modemcard.");
65module_param(id, charp, 0444);
66MODULE_PARM_DESC(id, "ID string for Intel i8x0 modemcard.");
67module_param(ac97_clock, int, 0444);
68MODULE_PARM_DESC(ac97_clock, "AC'97 codec clock (0 = auto-detect).");
69
70/* just for backward compatibility */
71static bool enable;
72module_param(enable, bool, 0444);
73
74/*
75 * Direct registers
76 */
77enum { DEVICE_INTEL, DEVICE_SIS, DEVICE_ALI, DEVICE_NFORCE };
78
79#define ICHREG(x) ICH_REG_##x
80
81#define DEFINE_REGSET(name,base) \
82enum { \
83 ICH_REG_##name##_BDBAR = base + 0x0, /* dword - buffer descriptor list base address */ \
84 ICH_REG_##name##_CIV = base + 0x04, /* byte - current index value */ \
85 ICH_REG_##name##_LVI = base + 0x05, /* byte - last valid index */ \
86 ICH_REG_##name##_SR = base + 0x06, /* byte - status register */ \
87 ICH_REG_##name##_PICB = base + 0x08, /* word - position in current buffer */ \
88 ICH_REG_##name##_PIV = base + 0x0a, /* byte - prefetched index value */ \
89 ICH_REG_##name##_CR = base + 0x0b, /* byte - control register */ \
90};
91
92/* busmaster blocks */
93DEFINE_REGSET(OFF, 0); /* offset */
94
95/* values for each busmaster block */
96
97/* LVI */
98#define ICH_REG_LVI_MASK 0x1f
99
100/* SR */
101#define ICH_FIFOE 0x10 /* FIFO error */
102#define ICH_BCIS 0x08 /* buffer completion interrupt status */
103#define ICH_LVBCI 0x04 /* last valid buffer completion interrupt */
104#define ICH_CELV 0x02 /* current equals last valid */
105#define ICH_DCH 0x01 /* DMA controller halted */
106
107/* PIV */
108#define ICH_REG_PIV_MASK 0x1f /* mask */
109
110/* CR */
111#define ICH_IOCE 0x10 /* interrupt on completion enable */
112#define ICH_FEIE 0x08 /* fifo error interrupt enable */
113#define ICH_LVBIE 0x04 /* last valid buffer interrupt enable */
114#define ICH_RESETREGS 0x02 /* reset busmaster registers */
115#define ICH_STARTBM 0x01 /* start busmaster operation */
116
117
118/* global block */
119#define ICH_REG_GLOB_CNT 0x3c /* dword - global control */
120#define ICH_TRIE 0x00000040 /* tertiary resume interrupt enable */
121#define ICH_SRIE 0x00000020 /* secondary resume interrupt enable */
122#define ICH_PRIE 0x00000010 /* primary resume interrupt enable */
123#define ICH_ACLINK 0x00000008 /* AClink shut off */
124#define ICH_AC97WARM 0x00000004 /* AC'97 warm reset */
125#define ICH_AC97COLD 0x00000002 /* AC'97 cold reset */
126#define ICH_GIE 0x00000001 /* GPI interrupt enable */
127#define ICH_REG_GLOB_STA 0x40 /* dword - global status */
128#define ICH_TRI 0x20000000 /* ICH4: tertiary (AC_SDIN2) resume interrupt */
129#define ICH_TCR 0x10000000 /* ICH4: tertiary (AC_SDIN2) codec ready */
130#define ICH_BCS 0x08000000 /* ICH4: bit clock stopped */
131#define ICH_SPINT 0x04000000 /* ICH4: S/PDIF interrupt */
132#define ICH_P2INT 0x02000000 /* ICH4: PCM2-In interrupt */
133#define ICH_M2INT 0x01000000 /* ICH4: Mic2-In interrupt */
134#define ICH_SAMPLE_CAP 0x00c00000 /* ICH4: sample capability bits (RO) */
135#define ICH_MULTICHAN_CAP 0x00300000 /* ICH4: multi-channel capability bits (RO) */
136#define ICH_MD3 0x00020000 /* modem power down semaphore */
137#define ICH_AD3 0x00010000 /* audio power down semaphore */
138#define ICH_RCS 0x00008000 /* read completion status */
139#define ICH_BIT3 0x00004000 /* bit 3 slot 12 */
140#define ICH_BIT2 0x00002000 /* bit 2 slot 12 */
141#define ICH_BIT1 0x00001000 /* bit 1 slot 12 */
142#define ICH_SRI 0x00000800 /* secondary (AC_SDIN1) resume interrupt */
143#define ICH_PRI 0x00000400 /* primary (AC_SDIN0) resume interrupt */
144#define ICH_SCR 0x00000200 /* secondary (AC_SDIN1) codec ready */
145#define ICH_PCR 0x00000100 /* primary (AC_SDIN0) codec ready */
146#define ICH_MCINT 0x00000080 /* MIC capture interrupt */
147#define ICH_POINT 0x00000040 /* playback interrupt */
148#define ICH_PIINT 0x00000020 /* capture interrupt */
149#define ICH_NVSPINT 0x00000010 /* nforce spdif interrupt */
150#define ICH_MOINT 0x00000004 /* modem playback interrupt */
151#define ICH_MIINT 0x00000002 /* modem capture interrupt */
152#define ICH_GSCI 0x00000001 /* GPI status change interrupt */
153#define ICH_REG_ACC_SEMA 0x44 /* byte - codec write semaphore */
154#define ICH_CAS 0x01 /* codec access semaphore */
155
156#define ICH_MAX_FRAGS 32 /* max hw frags */
157
158
159/*
160 *
161 */
162
163enum { ICHD_MDMIN, ICHD_MDMOUT, ICHD_MDMLAST = ICHD_MDMOUT };
164enum { ALID_MDMIN, ALID_MDMOUT, ALID_MDMLAST = ALID_MDMOUT };
165
166#define get_ichdev(substream) (substream->runtime->private_data)
167
168struct ichdev {
169 unsigned int ichd; /* ich device number */
170 unsigned long reg_offset; /* offset to bmaddr */
171 u32 *bdbar; /* CPU address (32bit) */
172 unsigned int bdbar_addr; /* PCI bus address (32bit) */
173 struct snd_pcm_substream *substream;
174 unsigned int physbuf; /* physical address (32bit) */
175 unsigned int size;
176 unsigned int fragsize;
177 unsigned int fragsize1;
178 unsigned int position;
179 int frags;
180 int lvi;
181 int lvi_frag;
182 int civ;
183 int ack;
184 int ack_reload;
185 unsigned int ack_bit;
186 unsigned int roff_sr;
187 unsigned int roff_picb;
188 unsigned int int_sta_mask; /* interrupt status mask */
189 unsigned int ali_slot; /* ALI DMA slot */
190 struct snd_ac97 *ac97;
191};
192
193struct intel8x0m {
194 unsigned int device_type;
195
196 int irq;
197
198 void __iomem *addr;
199 void __iomem *bmaddr;
200
201 struct pci_dev *pci;
202 struct snd_card *card;
203
204 int pcm_devs;
205 struct snd_pcm *pcm[2];
206 struct ichdev ichd[2];
207
208 unsigned int in_ac97_init: 1;
209
210 struct snd_ac97_bus *ac97_bus;
211 struct snd_ac97 *ac97;
212
213 spinlock_t reg_lock;
214
215 struct snd_dma_buffer bdbars;
216 u32 bdbars_count;
217 u32 int_sta_reg; /* interrupt status register */
218 u32 int_sta_mask; /* interrupt status mask */
219 unsigned int pcm_pos_shift;
220};
221
222static DEFINE_PCI_DEVICE_TABLE(snd_intel8x0m_ids) = {
223 { PCI_VDEVICE(INTEL, 0x2416), DEVICE_INTEL }, /* 82801AA */
224 { PCI_VDEVICE(INTEL, 0x2426), DEVICE_INTEL }, /* 82901AB */
225 { PCI_VDEVICE(INTEL, 0x2446), DEVICE_INTEL }, /* 82801BA */
226 { PCI_VDEVICE(INTEL, 0x2486), DEVICE_INTEL }, /* ICH3 */
227 { PCI_VDEVICE(INTEL, 0x24c6), DEVICE_INTEL }, /* ICH4 */
228 { PCI_VDEVICE(INTEL, 0x24d6), DEVICE_INTEL }, /* ICH5 */
229 { PCI_VDEVICE(INTEL, 0x266d), DEVICE_INTEL }, /* ICH6 */
230 { PCI_VDEVICE(INTEL, 0x27dd), DEVICE_INTEL }, /* ICH7 */
231 { PCI_VDEVICE(INTEL, 0x7196), DEVICE_INTEL }, /* 440MX */
232 { PCI_VDEVICE(AMD, 0x7446), DEVICE_INTEL }, /* AMD768 */
233 { PCI_VDEVICE(SI, 0x7013), DEVICE_SIS }, /* SI7013 */
234 { PCI_VDEVICE(NVIDIA, 0x01c1), DEVICE_NFORCE }, /* NFORCE */
235 { PCI_VDEVICE(NVIDIA, 0x0069), DEVICE_NFORCE }, /* NFORCE2 */
236 { PCI_VDEVICE(NVIDIA, 0x0089), DEVICE_NFORCE }, /* NFORCE2s */
237 { PCI_VDEVICE(NVIDIA, 0x00d9), DEVICE_NFORCE }, /* NFORCE3 */
238 { PCI_VDEVICE(AMD, 0x746e), DEVICE_INTEL }, /* AMD8111 */
239#if 0
240 { PCI_VDEVICE(AL, 0x5455), DEVICE_ALI }, /* Ali5455 */
241#endif
242 { 0, }
243};
244
245MODULE_DEVICE_TABLE(pci, snd_intel8x0m_ids);
246
247/*
248 * Lowlevel I/O - busmaster
249 */
250
251static inline u8 igetbyte(struct intel8x0m *chip, u32 offset)
252{
253 return ioread8(chip->bmaddr + offset);
254}
255
256static inline u16 igetword(struct intel8x0m *chip, u32 offset)
257{
258 return ioread16(chip->bmaddr + offset);
259}
260
261static inline u32 igetdword(struct intel8x0m *chip, u32 offset)
262{
263 return ioread32(chip->bmaddr + offset);
264}
265
266static inline void iputbyte(struct intel8x0m *chip, u32 offset, u8 val)
267{
268 iowrite8(val, chip->bmaddr + offset);
269}
270
271static inline void iputword(struct intel8x0m *chip, u32 offset, u16 val)
272{
273 iowrite16(val, chip->bmaddr + offset);
274}
275
276static inline void iputdword(struct intel8x0m *chip, u32 offset, u32 val)
277{
278 iowrite32(val, chip->bmaddr + offset);
279}
280
281/*
282 * Lowlevel I/O - AC'97 registers
283 */
284
285static inline u16 iagetword(struct intel8x0m *chip, u32 offset)
286{
287 return ioread16(chip->addr + offset);
288}
289
290static inline void iaputword(struct intel8x0m *chip, u32 offset, u16 val)
291{
292 iowrite16(val, chip->addr + offset);
293}
294
295/*
296 * Basic I/O
297 */
298
299/*
300 * access to AC97 codec via normal i/o (for ICH and SIS7013)
301 */
302
303/* return the GLOB_STA bit for the corresponding codec */
304static unsigned int get_ich_codec_bit(struct intel8x0m *chip, unsigned int codec)
305{
306 static unsigned int codec_bit[3] = {
307 ICH_PCR, ICH_SCR, ICH_TCR
308 };
309 if (snd_BUG_ON(codec >= 3))
310 return ICH_PCR;
311 return codec_bit[codec];
312}
313
314static int snd_intel8x0m_codec_semaphore(struct intel8x0m *chip, unsigned int codec)
315{
316 int time;
317
318 if (codec > 1)
319 return -EIO;
320 codec = get_ich_codec_bit(chip, codec);
321
322 /* codec ready ? */
323 if ((igetdword(chip, ICHREG(GLOB_STA)) & codec) == 0)
324 return -EIO;
325
326 /* Anyone holding a semaphore for 1 msec should be shot... */
327 time = 100;
328 do {
329 if (!(igetbyte(chip, ICHREG(ACC_SEMA)) & ICH_CAS))
330 return 0;
331 udelay(10);
332 } while (time--);
333
334 /* access to some forbidden (non existent) ac97 registers will not
335 * reset the semaphore. So even if you don't get the semaphore, still
336 * continue the access. We don't need the semaphore anyway. */
337 snd_printk(KERN_ERR "codec_semaphore: semaphore is not ready [0x%x][0x%x]\n",
338 igetbyte(chip, ICHREG(ACC_SEMA)), igetdword(chip, ICHREG(GLOB_STA)));
339 iagetword(chip, 0); /* clear semaphore flag */
340 /* I don't care about the semaphore */
341 return -EBUSY;
342}
343
344static void snd_intel8x0m_codec_write(struct snd_ac97 *ac97,
345 unsigned short reg,
346 unsigned short val)
347{
348 struct intel8x0m *chip = ac97->private_data;
349
350 if (snd_intel8x0m_codec_semaphore(chip, ac97->num) < 0) {
351 if (! chip->in_ac97_init)
352 snd_printk(KERN_ERR "codec_write %d: semaphore is not ready for register 0x%x\n", ac97->num, reg);
353 }
354 iaputword(chip, reg + ac97->num * 0x80, val);
355}
356
357static unsigned short snd_intel8x0m_codec_read(struct snd_ac97 *ac97,
358 unsigned short reg)
359{
360 struct intel8x0m *chip = ac97->private_data;
361 unsigned short res;
362 unsigned int tmp;
363
364 if (snd_intel8x0m_codec_semaphore(chip, ac97->num) < 0) {
365 if (! chip->in_ac97_init)
366 snd_printk(KERN_ERR "codec_read %d: semaphore is not ready for register 0x%x\n", ac97->num, reg);
367 res = 0xffff;
368 } else {
369 res = iagetword(chip, reg + ac97->num * 0x80);
370 if ((tmp = igetdword(chip, ICHREG(GLOB_STA))) & ICH_RCS) {
371 /* reset RCS and preserve other R/WC bits */
372 iputdword(chip, ICHREG(GLOB_STA),
373 tmp & ~(ICH_SRI|ICH_PRI|ICH_TRI|ICH_GSCI));
374 if (! chip->in_ac97_init)
375 snd_printk(KERN_ERR "codec_read %d: read timeout for register 0x%x\n", ac97->num, reg);
376 res = 0xffff;
377 }
378 }
379 if (reg == AC97_GPIO_STATUS)
380 iagetword(chip, 0); /* clear semaphore */
381 return res;
382}
383
384
385/*
386 * DMA I/O
387 */
388static void snd_intel8x0m_setup_periods(struct intel8x0m *chip, struct ichdev *ichdev)
389{
390 int idx;
391 u32 *bdbar = ichdev->bdbar;
392 unsigned long port = ichdev->reg_offset;
393
394 iputdword(chip, port + ICH_REG_OFF_BDBAR, ichdev->bdbar_addr);
395 if (ichdev->size == ichdev->fragsize) {
396 ichdev->ack_reload = ichdev->ack = 2;
397 ichdev->fragsize1 = ichdev->fragsize >> 1;
398 for (idx = 0; idx < (ICH_REG_LVI_MASK + 1) * 2; idx += 4) {
399 bdbar[idx + 0] = cpu_to_le32(ichdev->physbuf);
400 bdbar[idx + 1] = cpu_to_le32(0x80000000 | /* interrupt on completion */
401 ichdev->fragsize1 >> chip->pcm_pos_shift);
402 bdbar[idx + 2] = cpu_to_le32(ichdev->physbuf + (ichdev->size >> 1));
403 bdbar[idx + 3] = cpu_to_le32(0x80000000 | /* interrupt on completion */
404 ichdev->fragsize1 >> chip->pcm_pos_shift);
405 }
406 ichdev->frags = 2;
407 } else {
408 ichdev->ack_reload = ichdev->ack = 1;
409 ichdev->fragsize1 = ichdev->fragsize;
410 for (idx = 0; idx < (ICH_REG_LVI_MASK + 1) * 2; idx += 2) {
411 bdbar[idx + 0] = cpu_to_le32(ichdev->physbuf + (((idx >> 1) * ichdev->fragsize) % ichdev->size));
412 bdbar[idx + 1] = cpu_to_le32(0x80000000 | /* interrupt on completion */
413 ichdev->fragsize >> chip->pcm_pos_shift);
414 /*
415 printk(KERN_DEBUG "bdbar[%i] = 0x%x [0x%x]\n",
416 idx + 0, bdbar[idx + 0], bdbar[idx + 1]);
417 */
418 }
419 ichdev->frags = ichdev->size / ichdev->fragsize;
420 }
421 iputbyte(chip, port + ICH_REG_OFF_LVI, ichdev->lvi = ICH_REG_LVI_MASK);
422 ichdev->civ = 0;
423 iputbyte(chip, port + ICH_REG_OFF_CIV, 0);
424 ichdev->lvi_frag = ICH_REG_LVI_MASK % ichdev->frags;
425 ichdev->position = 0;
426#if 0
427 printk(KERN_DEBUG "lvi_frag = %i, frags = %i, period_size = 0x%x, "
428 "period_size1 = 0x%x\n",
429 ichdev->lvi_frag, ichdev->frags, ichdev->fragsize,
430 ichdev->fragsize1);
431#endif
432 /* clear interrupts */
433 iputbyte(chip, port + ichdev->roff_sr, ICH_FIFOE | ICH_BCIS | ICH_LVBCI);
434}
435
436/*
437 * Interrupt handler
438 */
439
440static inline void snd_intel8x0m_update(struct intel8x0m *chip, struct ichdev *ichdev)
441{
442 unsigned long port = ichdev->reg_offset;
443 int civ, i, step;
444 int ack = 0;
445
446 civ = igetbyte(chip, port + ICH_REG_OFF_CIV);
447 if (civ == ichdev->civ) {
448 // snd_printd("civ same %d\n", civ);
449 step = 1;
450 ichdev->civ++;
451 ichdev->civ &= ICH_REG_LVI_MASK;
452 } else {
453 step = civ - ichdev->civ;
454 if (step < 0)
455 step += ICH_REG_LVI_MASK + 1;
456 // if (step != 1)
457 // snd_printd("step = %d, %d -> %d\n", step, ichdev->civ, civ);
458 ichdev->civ = civ;
459 }
460
461 ichdev->position += step * ichdev->fragsize1;
462 ichdev->position %= ichdev->size;
463 ichdev->lvi += step;
464 ichdev->lvi &= ICH_REG_LVI_MASK;
465 iputbyte(chip, port + ICH_REG_OFF_LVI, ichdev->lvi);
466 for (i = 0; i < step; i++) {
467 ichdev->lvi_frag++;
468 ichdev->lvi_frag %= ichdev->frags;
469 ichdev->bdbar[ichdev->lvi * 2] = cpu_to_le32(ichdev->physbuf +
470 ichdev->lvi_frag *
471 ichdev->fragsize1);
472#if 0
473 printk(KERN_DEBUG "new: bdbar[%i] = 0x%x [0x%x], "
474 "prefetch = %i, all = 0x%x, 0x%x\n",
475 ichdev->lvi * 2, ichdev->bdbar[ichdev->lvi * 2],
476 ichdev->bdbar[ichdev->lvi * 2 + 1], inb(ICH_REG_OFF_PIV + port),
477 inl(port + 4), inb(port + ICH_REG_OFF_CR));
478#endif
479 if (--ichdev->ack == 0) {
480 ichdev->ack = ichdev->ack_reload;
481 ack = 1;
482 }
483 }
484 if (ack && ichdev->substream) {
485 spin_unlock(&chip->reg_lock);
486 snd_pcm_period_elapsed(ichdev->substream);
487 spin_lock(&chip->reg_lock);
488 }
489 iputbyte(chip, port + ichdev->roff_sr, ICH_FIFOE | ICH_BCIS | ICH_LVBCI);
490}
491
492static irqreturn_t snd_intel8x0m_interrupt(int irq, void *dev_id)
493{
494 struct intel8x0m *chip = dev_id;
495 struct ichdev *ichdev;
496 unsigned int status;
497 unsigned int i;
498
499 spin_lock(&chip->reg_lock);
500 status = igetdword(chip, chip->int_sta_reg);
501 if (status == 0xffffffff) { /* we are not yet resumed */
502 spin_unlock(&chip->reg_lock);
503 return IRQ_NONE;
504 }
505 if ((status & chip->int_sta_mask) == 0) {
506 if (status)
507 iputdword(chip, chip->int_sta_reg, status);
508 spin_unlock(&chip->reg_lock);
509 return IRQ_NONE;
510 }
511
512 for (i = 0; i < chip->bdbars_count; i++) {
513 ichdev = &chip->ichd[i];
514 if (status & ichdev->int_sta_mask)
515 snd_intel8x0m_update(chip, ichdev);
516 }
517
518 /* ack them */
519 iputdword(chip, chip->int_sta_reg, status & chip->int_sta_mask);
520 spin_unlock(&chip->reg_lock);
521
522 return IRQ_HANDLED;
523}
524
525/*
526 * PCM part
527 */
528
529static int snd_intel8x0m_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
530{
531 struct intel8x0m *chip = snd_pcm_substream_chip(substream);
532 struct ichdev *ichdev = get_ichdev(substream);
533 unsigned char val = 0;
534 unsigned long port = ichdev->reg_offset;
535
536 switch (cmd) {
537 case SNDRV_PCM_TRIGGER_START:
538 case SNDRV_PCM_TRIGGER_RESUME:
539 val = ICH_IOCE | ICH_STARTBM;
540 break;
541 case SNDRV_PCM_TRIGGER_STOP:
542 case SNDRV_PCM_TRIGGER_SUSPEND:
543 val = 0;
544 break;
545 case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
546 val = ICH_IOCE;
547 break;
548 case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
549 val = ICH_IOCE | ICH_STARTBM;
550 break;
551 default:
552 return -EINVAL;
553 }
554 iputbyte(chip, port + ICH_REG_OFF_CR, val);
555 if (cmd == SNDRV_PCM_TRIGGER_STOP) {
556 /* wait until DMA stopped */
557 while (!(igetbyte(chip, port + ichdev->roff_sr) & ICH_DCH)) ;
558 /* reset whole DMA things */
559 iputbyte(chip, port + ICH_REG_OFF_CR, ICH_RESETREGS);
560 }
561 return 0;
562}
563
564static int snd_intel8x0m_hw_params(struct snd_pcm_substream *substream,
565 struct snd_pcm_hw_params *hw_params)
566{
567 return snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
568}
569
570static int snd_intel8x0m_hw_free(struct snd_pcm_substream *substream)
571{
572 return snd_pcm_lib_free_pages(substream);
573}
574
575static snd_pcm_uframes_t snd_intel8x0m_pcm_pointer(struct snd_pcm_substream *substream)
576{
577 struct intel8x0m *chip = snd_pcm_substream_chip(substream);
578 struct ichdev *ichdev = get_ichdev(substream);
579 size_t ptr1, ptr;
580
581 ptr1 = igetword(chip, ichdev->reg_offset + ichdev->roff_picb) << chip->pcm_pos_shift;
582 if (ptr1 != 0)
583 ptr = ichdev->fragsize1 - ptr1;
584 else
585 ptr = 0;
586 ptr += ichdev->position;
587 if (ptr >= ichdev->size)
588 return 0;
589 return bytes_to_frames(substream->runtime, ptr);
590}
591
592static int snd_intel8x0m_pcm_prepare(struct snd_pcm_substream *substream)
593{
594 struct intel8x0m *chip = snd_pcm_substream_chip(substream);
595 struct snd_pcm_runtime *runtime = substream->runtime;
596 struct ichdev *ichdev = get_ichdev(substream);
597
598 ichdev->physbuf = runtime->dma_addr;
599 ichdev->size = snd_pcm_lib_buffer_bytes(substream);
600 ichdev->fragsize = snd_pcm_lib_period_bytes(substream);
601 snd_ac97_write(ichdev->ac97, AC97_LINE1_RATE, runtime->rate);
602 snd_ac97_write(ichdev->ac97, AC97_LINE1_LEVEL, 0);
603 snd_intel8x0m_setup_periods(chip, ichdev);
604 return 0;
605}
606
607static struct snd_pcm_hardware snd_intel8x0m_stream =
608{
609 .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
610 SNDRV_PCM_INFO_BLOCK_TRANSFER |
611 SNDRV_PCM_INFO_MMAP_VALID |
612 SNDRV_PCM_INFO_PAUSE |
613 SNDRV_PCM_INFO_RESUME),
614 .formats = SNDRV_PCM_FMTBIT_S16_LE,
615 .rates = SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_KNOT,
616 .rate_min = 8000,
617 .rate_max = 16000,
618 .channels_min = 1,
619 .channels_max = 1,
620 .buffer_bytes_max = 64 * 1024,
621 .period_bytes_min = 32,
622 .period_bytes_max = 64 * 1024,
623 .periods_min = 1,
624 .periods_max = 1024,
625 .fifo_size = 0,
626};
627
628
629static int snd_intel8x0m_pcm_open(struct snd_pcm_substream *substream, struct ichdev *ichdev)
630{
631 static unsigned int rates[] = { 8000, 9600, 12000, 16000 };
632 static struct snd_pcm_hw_constraint_list hw_constraints_rates = {
633 .count = ARRAY_SIZE(rates),
634 .list = rates,
635 .mask = 0,
636 };
637 struct snd_pcm_runtime *runtime = substream->runtime;
638 int err;
639
640 ichdev->substream = substream;
641 runtime->hw = snd_intel8x0m_stream;
642 err = snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
643 &hw_constraints_rates);
644 if ( err < 0 )
645 return err;
646 runtime->private_data = ichdev;
647 return 0;
648}
649
650static int snd_intel8x0m_playback_open(struct snd_pcm_substream *substream)
651{
652 struct intel8x0m *chip = snd_pcm_substream_chip(substream);
653
654 return snd_intel8x0m_pcm_open(substream, &chip->ichd[ICHD_MDMOUT]);
655}
656
657static int snd_intel8x0m_playback_close(struct snd_pcm_substream *substream)
658{
659 struct intel8x0m *chip = snd_pcm_substream_chip(substream);
660
661 chip->ichd[ICHD_MDMOUT].substream = NULL;
662 return 0;
663}
664
665static int snd_intel8x0m_capture_open(struct snd_pcm_substream *substream)
666{
667 struct intel8x0m *chip = snd_pcm_substream_chip(substream);
668
669 return snd_intel8x0m_pcm_open(substream, &chip->ichd[ICHD_MDMIN]);
670}
671
672static int snd_intel8x0m_capture_close(struct snd_pcm_substream *substream)
673{
674 struct intel8x0m *chip = snd_pcm_substream_chip(substream);
675
676 chip->ichd[ICHD_MDMIN].substream = NULL;
677 return 0;
678}
679
680
681static struct snd_pcm_ops snd_intel8x0m_playback_ops = {
682 .open = snd_intel8x0m_playback_open,
683 .close = snd_intel8x0m_playback_close,
684 .ioctl = snd_pcm_lib_ioctl,
685 .hw_params = snd_intel8x0m_hw_params,
686 .hw_free = snd_intel8x0m_hw_free,
687 .prepare = snd_intel8x0m_pcm_prepare,
688 .trigger = snd_intel8x0m_pcm_trigger,
689 .pointer = snd_intel8x0m_pcm_pointer,
690};
691
692static struct snd_pcm_ops snd_intel8x0m_capture_ops = {
693 .open = snd_intel8x0m_capture_open,
694 .close = snd_intel8x0m_capture_close,
695 .ioctl = snd_pcm_lib_ioctl,
696 .hw_params = snd_intel8x0m_hw_params,
697 .hw_free = snd_intel8x0m_hw_free,
698 .prepare = snd_intel8x0m_pcm_prepare,
699 .trigger = snd_intel8x0m_pcm_trigger,
700 .pointer = snd_intel8x0m_pcm_pointer,
701};
702
703
704struct ich_pcm_table {
705 char *suffix;
706 struct snd_pcm_ops *playback_ops;
707 struct snd_pcm_ops *capture_ops;
708 size_t prealloc_size;
709 size_t prealloc_max_size;
710 int ac97_idx;
711};
712
713static int __devinit snd_intel8x0m_pcm1(struct intel8x0m *chip, int device,
714 struct ich_pcm_table *rec)
715{
716 struct snd_pcm *pcm;
717 int err;
718 char name[32];
719
720 if (rec->suffix)
721 sprintf(name, "Intel ICH - %s", rec->suffix);
722 else
723 strcpy(name, "Intel ICH");
724 err = snd_pcm_new(chip->card, name, device,
725 rec->playback_ops ? 1 : 0,
726 rec->capture_ops ? 1 : 0, &pcm);
727 if (err < 0)
728 return err;
729
730 if (rec->playback_ops)
731 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, rec->playback_ops);
732 if (rec->capture_ops)
733 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, rec->capture_ops);
734
735 pcm->private_data = chip;
736 pcm->info_flags = 0;
737 pcm->dev_class = SNDRV_PCM_CLASS_MODEM;
738 if (rec->suffix)
739 sprintf(pcm->name, "%s - %s", chip->card->shortname, rec->suffix);
740 else
741 strcpy(pcm->name, chip->card->shortname);
742 chip->pcm[device] = pcm;
743
744 snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
745 snd_dma_pci_data(chip->pci),
746 rec->prealloc_size,
747 rec->prealloc_max_size);
748
749 return 0;
750}
751
752static struct ich_pcm_table intel_pcms[] __devinitdata = {
753 {
754 .suffix = "Modem",
755 .playback_ops = &snd_intel8x0m_playback_ops,
756 .capture_ops = &snd_intel8x0m_capture_ops,
757 .prealloc_size = 32 * 1024,
758 .prealloc_max_size = 64 * 1024,
759 },
760};
761
762static int __devinit snd_intel8x0m_pcm(struct intel8x0m *chip)
763{
764 int i, tblsize, device, err;
765 struct ich_pcm_table *tbl, *rec;
766
767#if 1
768 tbl = intel_pcms;
769 tblsize = 1;
770#else
771 switch (chip->device_type) {
772 case DEVICE_NFORCE:
773 tbl = nforce_pcms;
774 tblsize = ARRAY_SIZE(nforce_pcms);
775 break;
776 case DEVICE_ALI:
777 tbl = ali_pcms;
778 tblsize = ARRAY_SIZE(ali_pcms);
779 break;
780 default:
781 tbl = intel_pcms;
782 tblsize = 2;
783 break;
784 }
785#endif
786 device = 0;
787 for (i = 0; i < tblsize; i++) {
788 rec = tbl + i;
789 if (i > 0 && rec->ac97_idx) {
790 /* activate PCM only when associated AC'97 codec */
791 if (! chip->ichd[rec->ac97_idx].ac97)
792 continue;
793 }
794 err = snd_intel8x0m_pcm1(chip, device, rec);
795 if (err < 0)
796 return err;
797 device++;
798 }
799
800 chip->pcm_devs = device;
801 return 0;
802}
803
804
805/*
806 * Mixer part
807 */
808
809static void snd_intel8x0m_mixer_free_ac97_bus(struct snd_ac97_bus *bus)
810{
811 struct intel8x0m *chip = bus->private_data;
812 chip->ac97_bus = NULL;
813}
814
815static void snd_intel8x0m_mixer_free_ac97(struct snd_ac97 *ac97)
816{
817 struct intel8x0m *chip = ac97->private_data;
818 chip->ac97 = NULL;
819}
820
821
822static int __devinit snd_intel8x0m_mixer(struct intel8x0m *chip, int ac97_clock)
823{
824 struct snd_ac97_bus *pbus;
825 struct snd_ac97_template ac97;
826 struct snd_ac97 *x97;
827 int err;
828 unsigned int glob_sta = 0;
829 static struct snd_ac97_bus_ops ops = {
830 .write = snd_intel8x0m_codec_write,
831 .read = snd_intel8x0m_codec_read,
832 };
833
834 chip->in_ac97_init = 1;
835
836 memset(&ac97, 0, sizeof(ac97));
837 ac97.private_data = chip;
838 ac97.private_free = snd_intel8x0m_mixer_free_ac97;
839 ac97.scaps = AC97_SCAP_SKIP_AUDIO | AC97_SCAP_POWER_SAVE;
840
841 glob_sta = igetdword(chip, ICHREG(GLOB_STA));
842
843 if ((err = snd_ac97_bus(chip->card, 0, &ops, chip, &pbus)) < 0)
844 goto __err;
845 pbus->private_free = snd_intel8x0m_mixer_free_ac97_bus;
846 if (ac97_clock >= 8000 && ac97_clock <= 48000)
847 pbus->clock = ac97_clock;
848 chip->ac97_bus = pbus;
849
850 ac97.pci = chip->pci;
851 ac97.num = glob_sta & ICH_SCR ? 1 : 0;
852 if ((err = snd_ac97_mixer(pbus, &ac97, &x97)) < 0) {
853 snd_printk(KERN_ERR "Unable to initialize codec #%d\n", ac97.num);
854 if (ac97.num == 0)
855 goto __err;
856 return err;
857 }
858 chip->ac97 = x97;
859 if(ac97_is_modem(x97) && !chip->ichd[ICHD_MDMIN].ac97) {
860 chip->ichd[ICHD_MDMIN].ac97 = x97;
861 chip->ichd[ICHD_MDMOUT].ac97 = x97;
862 }
863
864 chip->in_ac97_init = 0;
865 return 0;
866
867 __err:
868 /* clear the cold-reset bit for the next chance */
869 if (chip->device_type != DEVICE_ALI)
870 iputdword(chip, ICHREG(GLOB_CNT),
871 igetdword(chip, ICHREG(GLOB_CNT)) & ~ICH_AC97COLD);
872 return err;
873}
874
875
876/*
877 *
878 */
879
880static int snd_intel8x0m_ich_chip_init(struct intel8x0m *chip, int probing)
881{
882 unsigned long end_time;
883 unsigned int cnt, status, nstatus;
884
885 /* put logic to right state */
886 /* first clear status bits */
887 status = ICH_RCS | ICH_MIINT | ICH_MOINT;
888 cnt = igetdword(chip, ICHREG(GLOB_STA));
889 iputdword(chip, ICHREG(GLOB_STA), cnt & status);
890
891 /* ACLink on, 2 channels */
892 cnt = igetdword(chip, ICHREG(GLOB_CNT));
893 cnt &= ~(ICH_ACLINK);
894 /* finish cold or do warm reset */
895 cnt |= (cnt & ICH_AC97COLD) == 0 ? ICH_AC97COLD : ICH_AC97WARM;
896 iputdword(chip, ICHREG(GLOB_CNT), cnt);
897 usleep_range(500, 1000); /* give warm reset some time */
898 end_time = jiffies + HZ / 4;
899 do {
900 if ((igetdword(chip, ICHREG(GLOB_CNT)) & ICH_AC97WARM) == 0)
901 goto __ok;
902 schedule_timeout_uninterruptible(1);
903 } while (time_after_eq(end_time, jiffies));
904 snd_printk(KERN_ERR "AC'97 warm reset still in progress? [0x%x]\n",
905 igetdword(chip, ICHREG(GLOB_CNT)));
906 return -EIO;
907
908 __ok:
909 if (probing) {
910 /* wait for any codec ready status.
911 * Once it becomes ready it should remain ready
912 * as long as we do not disable the ac97 link.
913 */
914 end_time = jiffies + HZ;
915 do {
916 status = igetdword(chip, ICHREG(GLOB_STA)) &
917 (ICH_PCR | ICH_SCR | ICH_TCR);
918 if (status)
919 break;
920 schedule_timeout_uninterruptible(1);
921 } while (time_after_eq(end_time, jiffies));
922 if (! status) {
923 /* no codec is found */
924 snd_printk(KERN_ERR "codec_ready: codec is not ready [0x%x]\n",
925 igetdword(chip, ICHREG(GLOB_STA)));
926 return -EIO;
927 }
928
929 /* up to two codecs (modem cannot be tertiary with ICH4) */
930 nstatus = ICH_PCR | ICH_SCR;
931
932 /* wait for other codecs ready status. */
933 end_time = jiffies + HZ / 4;
934 while (status != nstatus && time_after_eq(end_time, jiffies)) {
935 schedule_timeout_uninterruptible(1);
936 status |= igetdword(chip, ICHREG(GLOB_STA)) & nstatus;
937 }
938
939 } else {
940 /* resume phase */
941 status = 0;
942 if (chip->ac97)
943 status |= get_ich_codec_bit(chip, chip->ac97->num);
944 /* wait until all the probed codecs are ready */
945 end_time = jiffies + HZ;
946 do {
947 nstatus = igetdword(chip, ICHREG(GLOB_STA)) &
948 (ICH_PCR | ICH_SCR | ICH_TCR);
949 if (status == nstatus)
950 break;
951 schedule_timeout_uninterruptible(1);
952 } while (time_after_eq(end_time, jiffies));
953 }
954
955 if (chip->device_type == DEVICE_SIS) {
956 /* unmute the output on SIS7012 */
957 iputword(chip, 0x4c, igetword(chip, 0x4c) | 1);
958 }
959
960 return 0;
961}
962
963static int snd_intel8x0m_chip_init(struct intel8x0m *chip, int probing)
964{
965 unsigned int i;
966 int err;
967
968 if ((err = snd_intel8x0m_ich_chip_init(chip, probing)) < 0)
969 return err;
970 iagetword(chip, 0); /* clear semaphore flag */
971
972 /* disable interrupts */
973 for (i = 0; i < chip->bdbars_count; i++)
974 iputbyte(chip, ICH_REG_OFF_CR + chip->ichd[i].reg_offset, 0x00);
975 /* reset channels */
976 for (i = 0; i < chip->bdbars_count; i++)
977 iputbyte(chip, ICH_REG_OFF_CR + chip->ichd[i].reg_offset, ICH_RESETREGS);
978 /* initialize Buffer Descriptor Lists */
979 for (i = 0; i < chip->bdbars_count; i++)
980 iputdword(chip, ICH_REG_OFF_BDBAR + chip->ichd[i].reg_offset, chip->ichd[i].bdbar_addr);
981 return 0;
982}
983
984static int snd_intel8x0m_free(struct intel8x0m *chip)
985{
986 unsigned int i;
987
988 if (chip->irq < 0)
989 goto __hw_end;
990 /* disable interrupts */
991 for (i = 0; i < chip->bdbars_count; i++)
992 iputbyte(chip, ICH_REG_OFF_CR + chip->ichd[i].reg_offset, 0x00);
993 /* reset channels */
994 for (i = 0; i < chip->bdbars_count; i++)
995 iputbyte(chip, ICH_REG_OFF_CR + chip->ichd[i].reg_offset, ICH_RESETREGS);
996 __hw_end:
997 if (chip->irq >= 0)
998 free_irq(chip->irq, chip);
999 if (chip->bdbars.area)
1000 snd_dma_free_pages(&chip->bdbars);
1001 if (chip->addr)
1002 pci_iounmap(chip->pci, chip->addr);
1003 if (chip->bmaddr)
1004 pci_iounmap(chip->pci, chip->bmaddr);
1005 pci_release_regions(chip->pci);
1006 pci_disable_device(chip->pci);
1007 kfree(chip);
1008 return 0;
1009}
1010
1011#ifdef CONFIG_PM
1012/*
1013 * power management
1014 */
1015static int intel8x0m_suspend(struct pci_dev *pci, pm_message_t state)
1016{
1017 struct snd_card *card = pci_get_drvdata(pci);
1018 struct intel8x0m *chip = card->private_data;
1019 int i;
1020
1021 snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
1022 for (i = 0; i < chip->pcm_devs; i++)
1023 snd_pcm_suspend_all(chip->pcm[i]);
1024 snd_ac97_suspend(chip->ac97);
1025 if (chip->irq >= 0) {
1026 free_irq(chip->irq, chip);
1027 chip->irq = -1;
1028 }
1029 pci_disable_device(pci);
1030 pci_save_state(pci);
1031 pci_set_power_state(pci, pci_choose_state(pci, state));
1032 return 0;
1033}
1034
1035static int intel8x0m_resume(struct pci_dev *pci)
1036{
1037 struct snd_card *card = pci_get_drvdata(pci);
1038 struct intel8x0m *chip = card->private_data;
1039
1040 pci_set_power_state(pci, PCI_D0);
1041 pci_restore_state(pci);
1042 if (pci_enable_device(pci) < 0) {
1043 printk(KERN_ERR "intel8x0m: pci_enable_device failed, "
1044 "disabling device\n");
1045 snd_card_disconnect(card);
1046 return -EIO;
1047 }
1048 pci_set_master(pci);
1049 if (request_irq(pci->irq, snd_intel8x0m_interrupt,
1050 IRQF_SHARED, KBUILD_MODNAME, chip)) {
1051 printk(KERN_ERR "intel8x0m: unable to grab IRQ %d, "
1052 "disabling device\n", pci->irq);
1053 snd_card_disconnect(card);
1054 return -EIO;
1055 }
1056 chip->irq = pci->irq;
1057 snd_intel8x0m_chip_init(chip, 0);
1058 snd_ac97_resume(chip->ac97);
1059
1060 snd_power_change_state(card, SNDRV_CTL_POWER_D0);
1061 return 0;
1062}
1063#endif /* CONFIG_PM */
1064
1065#ifdef CONFIG_PROC_FS
1066static void snd_intel8x0m_proc_read(struct snd_info_entry * entry,
1067 struct snd_info_buffer *buffer)
1068{
1069 struct intel8x0m *chip = entry->private_data;
1070 unsigned int tmp;
1071
1072 snd_iprintf(buffer, "Intel8x0m\n\n");
1073 if (chip->device_type == DEVICE_ALI)
1074 return;
1075 tmp = igetdword(chip, ICHREG(GLOB_STA));
1076 snd_iprintf(buffer, "Global control : 0x%08x\n",
1077 igetdword(chip, ICHREG(GLOB_CNT)));
1078 snd_iprintf(buffer, "Global status : 0x%08x\n", tmp);
1079 snd_iprintf(buffer, "AC'97 codecs ready :%s%s%s%s\n",
1080 tmp & ICH_PCR ? " primary" : "",
1081 tmp & ICH_SCR ? " secondary" : "",
1082 tmp & ICH_TCR ? " tertiary" : "",
1083 (tmp & (ICH_PCR | ICH_SCR | ICH_TCR)) == 0 ? " none" : "");
1084}
1085
1086static void __devinit snd_intel8x0m_proc_init(struct intel8x0m * chip)
1087{
1088 struct snd_info_entry *entry;
1089
1090 if (! snd_card_proc_new(chip->card, "intel8x0m", &entry))
1091 snd_info_set_text_ops(entry, chip, snd_intel8x0m_proc_read);
1092}
1093#else /* !CONFIG_PROC_FS */
1094#define snd_intel8x0m_proc_init(chip)
1095#endif /* CONFIG_PROC_FS */
1096
1097
1098static int snd_intel8x0m_dev_free(struct snd_device *device)
1099{
1100 struct intel8x0m *chip = device->device_data;
1101 return snd_intel8x0m_free(chip);
1102}
1103
1104struct ich_reg_info {
1105 unsigned int int_sta_mask;
1106 unsigned int offset;
1107};
1108
1109static int __devinit snd_intel8x0m_create(struct snd_card *card,
1110 struct pci_dev *pci,
1111 unsigned long device_type,
1112 struct intel8x0m **r_intel8x0m)
1113{
1114 struct intel8x0m *chip;
1115 int err;
1116 unsigned int i;
1117 unsigned int int_sta_masks;
1118 struct ichdev *ichdev;
1119 static struct snd_device_ops ops = {
1120 .dev_free = snd_intel8x0m_dev_free,
1121 };
1122 static struct ich_reg_info intel_regs[2] = {
1123 { ICH_MIINT, 0 },
1124 { ICH_MOINT, 0x10 },
1125 };
1126 struct ich_reg_info *tbl;
1127
1128 *r_intel8x0m = NULL;
1129
1130 if ((err = pci_enable_device(pci)) < 0)
1131 return err;
1132
1133 chip = kzalloc(sizeof(*chip), GFP_KERNEL);
1134 if (chip == NULL) {
1135 pci_disable_device(pci);
1136 return -ENOMEM;
1137 }
1138 spin_lock_init(&chip->reg_lock);
1139 chip->device_type = device_type;
1140 chip->card = card;
1141 chip->pci = pci;
1142 chip->irq = -1;
1143
1144 if ((err = pci_request_regions(pci, card->shortname)) < 0) {
1145 kfree(chip);
1146 pci_disable_device(pci);
1147 return err;
1148 }
1149
1150 if (device_type == DEVICE_ALI) {
1151 /* ALI5455 has no ac97 region */
1152 chip->bmaddr = pci_iomap(pci, 0, 0);
1153 goto port_inited;
1154 }
1155
1156 if (pci_resource_flags(pci, 2) & IORESOURCE_MEM) /* ICH4 and Nforce */
1157 chip->addr = pci_iomap(pci, 2, 0);
1158 else
1159 chip->addr = pci_iomap(pci, 0, 0);
1160 if (!chip->addr) {
1161 snd_printk(KERN_ERR "AC'97 space ioremap problem\n");
1162 snd_intel8x0m_free(chip);
1163 return -EIO;
1164 }
1165 if (pci_resource_flags(pci, 3) & IORESOURCE_MEM) /* ICH4 */
1166 chip->bmaddr = pci_iomap(pci, 3, 0);
1167 else
1168 chip->bmaddr = pci_iomap(pci, 1, 0);
1169 if (!chip->bmaddr) {
1170 snd_printk(KERN_ERR "Controller space ioremap problem\n");
1171 snd_intel8x0m_free(chip);
1172 return -EIO;
1173 }
1174
1175 port_inited:
1176 if (request_irq(pci->irq, snd_intel8x0m_interrupt, IRQF_SHARED,
1177 KBUILD_MODNAME, chip)) {
1178 snd_printk(KERN_ERR "unable to grab IRQ %d\n", pci->irq);
1179 snd_intel8x0m_free(chip);
1180 return -EBUSY;
1181 }
1182 chip->irq = pci->irq;
1183 pci_set_master(pci);
1184 synchronize_irq(chip->irq);
1185
1186 /* initialize offsets */
1187 chip->bdbars_count = 2;
1188 tbl = intel_regs;
1189
1190 for (i = 0; i < chip->bdbars_count; i++) {
1191 ichdev = &chip->ichd[i];
1192 ichdev->ichd = i;
1193 ichdev->reg_offset = tbl[i].offset;
1194 ichdev->int_sta_mask = tbl[i].int_sta_mask;
1195 if (device_type == DEVICE_SIS) {
1196 /* SiS 7013 swaps the registers */
1197 ichdev->roff_sr = ICH_REG_OFF_PICB;
1198 ichdev->roff_picb = ICH_REG_OFF_SR;
1199 } else {
1200 ichdev->roff_sr = ICH_REG_OFF_SR;
1201 ichdev->roff_picb = ICH_REG_OFF_PICB;
1202 }
1203 if (device_type == DEVICE_ALI)
1204 ichdev->ali_slot = (ichdev->reg_offset - 0x40) / 0x10;
1205 }
1206 /* SIS7013 handles the pcm data in bytes, others are in words */
1207 chip->pcm_pos_shift = (device_type == DEVICE_SIS) ? 0 : 1;
1208
1209 /* allocate buffer descriptor lists */
1210 /* the start of each lists must be aligned to 8 bytes */
1211 if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci),
1212 chip->bdbars_count * sizeof(u32) * ICH_MAX_FRAGS * 2,
1213 &chip->bdbars) < 0) {
1214 snd_intel8x0m_free(chip);
1215 return -ENOMEM;
1216 }
1217 /* tables must be aligned to 8 bytes here, but the kernel pages
1218 are much bigger, so we don't care (on i386) */
1219 int_sta_masks = 0;
1220 for (i = 0; i < chip->bdbars_count; i++) {
1221 ichdev = &chip->ichd[i];
1222 ichdev->bdbar = ((u32 *)chip->bdbars.area) + (i * ICH_MAX_FRAGS * 2);
1223 ichdev->bdbar_addr = chip->bdbars.addr + (i * sizeof(u32) * ICH_MAX_FRAGS * 2);
1224 int_sta_masks |= ichdev->int_sta_mask;
1225 }
1226 chip->int_sta_reg = ICH_REG_GLOB_STA;
1227 chip->int_sta_mask = int_sta_masks;
1228
1229 if ((err = snd_intel8x0m_chip_init(chip, 1)) < 0) {
1230 snd_intel8x0m_free(chip);
1231 return err;
1232 }
1233
1234 if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
1235 snd_intel8x0m_free(chip);
1236 return err;
1237 }
1238
1239 snd_card_set_dev(card, &pci->dev);
1240
1241 *r_intel8x0m = chip;
1242 return 0;
1243}
1244
1245static struct shortname_table {
1246 unsigned int id;
1247 const char *s;
1248} shortnames[] __devinitdata = {
1249 { PCI_DEVICE_ID_INTEL_82801AA_6, "Intel 82801AA-ICH" },
1250 { PCI_DEVICE_ID_INTEL_82801AB_6, "Intel 82901AB-ICH0" },
1251 { PCI_DEVICE_ID_INTEL_82801BA_6, "Intel 82801BA-ICH2" },
1252 { PCI_DEVICE_ID_INTEL_440MX_6, "Intel 440MX" },
1253 { PCI_DEVICE_ID_INTEL_82801CA_6, "Intel 82801CA-ICH3" },
1254 { PCI_DEVICE_ID_INTEL_82801DB_6, "Intel 82801DB-ICH4" },
1255 { PCI_DEVICE_ID_INTEL_82801EB_6, "Intel ICH5" },
1256 { PCI_DEVICE_ID_INTEL_ICH6_17, "Intel ICH6" },
1257 { PCI_DEVICE_ID_INTEL_ICH7_19, "Intel ICH7" },
1258 { 0x7446, "AMD AMD768" },
1259 { PCI_DEVICE_ID_SI_7013, "SiS SI7013" },
1260 { PCI_DEVICE_ID_NVIDIA_MCP1_MODEM, "NVidia nForce" },
1261 { PCI_DEVICE_ID_NVIDIA_MCP2_MODEM, "NVidia nForce2" },
1262 { PCI_DEVICE_ID_NVIDIA_MCP2S_MODEM, "NVidia nForce2s" },
1263 { PCI_DEVICE_ID_NVIDIA_MCP3_MODEM, "NVidia nForce3" },
1264 { 0x746e, "AMD AMD8111" },
1265#if 0
1266 { 0x5455, "ALi M5455" },
1267#endif
1268 { 0 },
1269};
1270
1271static int __devinit snd_intel8x0m_probe(struct pci_dev *pci,
1272 const struct pci_device_id *pci_id)
1273{
1274 struct snd_card *card;
1275 struct intel8x0m *chip;
1276 int err;
1277 struct shortname_table *name;
1278
1279 err = snd_card_create(index, id, THIS_MODULE, 0, &card);
1280 if (err < 0)
1281 return err;
1282
1283 strcpy(card->driver, "ICH-MODEM");
1284 strcpy(card->shortname, "Intel ICH");
1285 for (name = shortnames; name->id; name++) {
1286 if (pci->device == name->id) {
1287 strcpy(card->shortname, name->s);
1288 break;
1289 }
1290 }
1291 strcat(card->shortname," Modem");
1292
1293 if ((err = snd_intel8x0m_create(card, pci, pci_id->driver_data, &chip)) < 0) {
1294 snd_card_free(card);
1295 return err;
1296 }
1297 card->private_data = chip;
1298
1299 if ((err = snd_intel8x0m_mixer(chip, ac97_clock)) < 0) {
1300 snd_card_free(card);
1301 return err;
1302 }
1303 if ((err = snd_intel8x0m_pcm(chip)) < 0) {
1304 snd_card_free(card);
1305 return err;
1306 }
1307
1308 snd_intel8x0m_proc_init(chip);
1309
1310 sprintf(card->longname, "%s at irq %i",
1311 card->shortname, chip->irq);
1312
1313 if ((err = snd_card_register(card)) < 0) {
1314 snd_card_free(card);
1315 return err;
1316 }
1317 pci_set_drvdata(pci, card);
1318 return 0;
1319}
1320
1321static void __devexit snd_intel8x0m_remove(struct pci_dev *pci)
1322{
1323 snd_card_free(pci_get_drvdata(pci));
1324 pci_set_drvdata(pci, NULL);
1325}
1326
1327static struct pci_driver intel8x0m_driver = {
1328 .name = KBUILD_MODNAME,
1329 .id_table = snd_intel8x0m_ids,
1330 .probe = snd_intel8x0m_probe,
1331 .remove = __devexit_p(snd_intel8x0m_remove),
1332#ifdef CONFIG_PM
1333 .suspend = intel8x0m_suspend,
1334 .resume = intel8x0m_resume,
1335#endif
1336};
1337
1338module_pci_driver(intel8x0m_driver);