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Cleanup handling of NULL value passed for a mount option
[linux/fpc-iii.git] / sound / pci / intel8x0m.c
blobd689913a61be11ba1a2462ab11b8c4e54aac0735
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
39 MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
40 MODULE_DESCRIPTION("Intel 82801AA,82901AB,i810,i820,i830,i840,i845,MX440; "
41 "SiS 7013; NVidia MCP/2/2S/3 modems");
42 MODULE_LICENSE("GPL");
43 MODULE_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
59 static int index = -2; /* Exclude the first card */
60 static char *id = SNDRV_DEFAULT_STR1; /* ID for this card */
61 static int ac97_clock;
62
63 module_param(index, int, 0444);
64 MODULE_PARM_DESC(index, "Index value for Intel i8x0 modemcard.");
65 module_param(id, charp, 0444);
66 MODULE_PARM_DESC(id, "ID string for Intel i8x0 modemcard.");
67 module_param(ac97_clock, int, 0444);
68 MODULE_PARM_DESC(ac97_clock, "AC'97 codec clock (0 = auto-detect).");
69
70 /* just for backward compatibility */
71 static bool enable;
72 module_param(enable, bool, 0444);
73
74 /*
75 * Direct registers
76 */
77 enum { DEVICE_INTEL, DEVICE_SIS, DEVICE_ALI, DEVICE_NFORCE };
78
79 #define ICHREG(x) ICH_REG_##x
80
81 #define DEFINE_REGSET(name,base) \
82 enum { \
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 */
93 DEFINE_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
163 enum { ICHD_MDMIN, ICHD_MDMOUT, ICHD_MDMLAST = ICHD_MDMOUT };
164 enum { ALID_MDMIN, ALID_MDMOUT, ALID_MDMLAST = ALID_MDMOUT };
165
166 #define get_ichdev(substream) (substream->runtime->private_data)
167
168 struct 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
193 struct 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
222 static 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
245 MODULE_DEVICE_TABLE(pci, snd_intel8x0m_ids);
246
247 /*
248 * Lowlevel I/O - busmaster
249 */
250
251 static inline u8 igetbyte(struct intel8x0m *chip, u32 offset)
252 {
253 return ioread8(chip->bmaddr + offset);
254 }
255
256 static inline u16 igetword(struct intel8x0m *chip, u32 offset)
257 {
258 return ioread16(chip->bmaddr + offset);
259 }
260
261 static inline u32 igetdword(struct intel8x0m *chip, u32 offset)
262 {
263 return ioread32(chip->bmaddr + offset);
264 }
265
266 static inline void iputbyte(struct intel8x0m *chip, u32 offset, u8 val)
267 {
268 iowrite8(val, chip->bmaddr + offset);
269 }
270
271 static inline void iputword(struct intel8x0m *chip, u32 offset, u16 val)
272 {
273 iowrite16(val, chip->bmaddr + offset);
274 }
275
276 static 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
285 static inline u16 iagetword(struct intel8x0m *chip, u32 offset)
286 {
287 return ioread16(chip->addr + offset);
288 }
289
290 static 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 */
304 static 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
314 static 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
344 static 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
357 static 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 */
388 static 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
440 static 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
492 static 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
529 static 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
564 static 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
570 static int snd_intel8x0m_hw_free(struct snd_pcm_substream *substream)
571 {
572 return snd_pcm_lib_free_pages(substream);
573 }
574
575 static 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
592 static 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
607 static 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
629 static 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
650 static 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
657 static 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
665 static 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
672 static 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
681 static 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
692 static 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
704 struct 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
713 static 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
752 static 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
762 static 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
809 static 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
815 static 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
822 static 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
880 static 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
963 static 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
984 static 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 */
1015 static 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
1035 static 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
1066 static 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
1086 static 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
1098 static 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
1104 struct ich_reg_info {
1105 unsigned int int_sta_mask;
1106 unsigned int offset;
1107 };
1108
1109 static 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
1245 static 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
1271 static 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
1321 static 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
1327 static struct pci_driver 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
1338
1339 static int __init alsa_card_intel8x0m_init(void)
1340 {
1341 return pci_register_driver(&driver);
1342 }
1343
1344 static void __exit alsa_card_intel8x0m_exit(void)
1345 {
1346 pci_unregister_driver(&driver);
1347 }
1348
1349 module_init(alsa_card_intel8x0m_init)
1350 module_exit(alsa_card_intel8x0m_exit)
Linux with added FPC-III support