1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * ALSA modem driver for Intel ICH (i8x0) chipsets
5 * Copyright (c) 2000 Jaroslav Kysela <perex@perex.cz>
7 * This is modified (by Sasha Khapyorsky <sashak@alsa-project.org>) version
8 * of ALSA ICH sound driver intel8x0.c .
12 #include <linux/delay.h>
13 #include <linux/interrupt.h>
14 #include <linux/init.h>
15 #include <linux/pci.h>
16 #include <linux/slab.h>
17 #include <linux/module.h>
18 #include <sound/core.h>
19 #include <sound/pcm.h>
20 #include <sound/ac97_codec.h>
21 #include <sound/info.h>
22 #include <sound/initval.h>
24 MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
25 MODULE_DESCRIPTION("Intel 82801AA,82901AB,i810,i820,i830,i840,i845,MX440; "
26 "SiS 7013; NVidia MCP/2/2S/3 modems");
27 MODULE_LICENSE("GPL");
29 static int index = -2; /* Exclude the first card */
30 static char *id = SNDRV_DEFAULT_STR1; /* ID for this card */
31 static int ac97_clock;
33 module_param(index, int, 0444);
34 MODULE_PARM_DESC(index, "Index value for Intel i8x0 modemcard.");
35 module_param(id, charp, 0444);
36 MODULE_PARM_DESC(id, "ID string for Intel i8x0 modemcard.");
37 module_param(ac97_clock, int, 0444);
38 MODULE_PARM_DESC(ac97_clock, "AC'97 codec clock (0 = auto-detect).");
40 /* just for backward compatibility */
42 module_param(enable, bool, 0444);
47 enum { DEVICE_INTEL, DEVICE_SIS, DEVICE_ALI, DEVICE_NFORCE };
49 #define ICHREG(x) ICH_REG_##x
51 #define DEFINE_REGSET(name,base) \
53 ICH_REG_##name##_BDBAR = base + 0x0, /* dword - buffer descriptor list base address */ \
54 ICH_REG_##name##_CIV = base + 0x04, /* byte - current index value */ \
55 ICH_REG_##name##_LVI = base + 0x05, /* byte - last valid index */ \
56 ICH_REG_##name##_SR = base + 0x06, /* byte - status register */ \
57 ICH_REG_##name##_PICB = base + 0x08, /* word - position in current buffer */ \
58 ICH_REG_##name##_PIV = base + 0x0a, /* byte - prefetched index value */ \
59 ICH_REG_##name##_CR = base + 0x0b, /* byte - control register */ \
62 /* busmaster blocks */
63 DEFINE_REGSET(OFF, 0); /* offset */
65 /* values for each busmaster block */
68 #define ICH_REG_LVI_MASK 0x1f
71 #define ICH_FIFOE 0x10 /* FIFO error */
72 #define ICH_BCIS 0x08 /* buffer completion interrupt status */
73 #define ICH_LVBCI 0x04 /* last valid buffer completion interrupt */
74 #define ICH_CELV 0x02 /* current equals last valid */
75 #define ICH_DCH 0x01 /* DMA controller halted */
78 #define ICH_REG_PIV_MASK 0x1f /* mask */
81 #define ICH_IOCE 0x10 /* interrupt on completion enable */
82 #define ICH_FEIE 0x08 /* fifo error interrupt enable */
83 #define ICH_LVBIE 0x04 /* last valid buffer interrupt enable */
84 #define ICH_RESETREGS 0x02 /* reset busmaster registers */
85 #define ICH_STARTBM 0x01 /* start busmaster operation */
89 #define ICH_REG_GLOB_CNT 0x3c /* dword - global control */
90 #define ICH_TRIE 0x00000040 /* tertiary resume interrupt enable */
91 #define ICH_SRIE 0x00000020 /* secondary resume interrupt enable */
92 #define ICH_PRIE 0x00000010 /* primary resume interrupt enable */
93 #define ICH_ACLINK 0x00000008 /* AClink shut off */
94 #define ICH_AC97WARM 0x00000004 /* AC'97 warm reset */
95 #define ICH_AC97COLD 0x00000002 /* AC'97 cold reset */
96 #define ICH_GIE 0x00000001 /* GPI interrupt enable */
97 #define ICH_REG_GLOB_STA 0x40 /* dword - global status */
98 #define ICH_TRI 0x20000000 /* ICH4: tertiary (AC_SDIN2) resume interrupt */
99 #define ICH_TCR 0x10000000 /* ICH4: tertiary (AC_SDIN2) codec ready */
100 #define ICH_BCS 0x08000000 /* ICH4: bit clock stopped */
101 #define ICH_SPINT 0x04000000 /* ICH4: S/PDIF interrupt */
102 #define ICH_P2INT 0x02000000 /* ICH4: PCM2-In interrupt */
103 #define ICH_M2INT 0x01000000 /* ICH4: Mic2-In interrupt */
104 #define ICH_SAMPLE_CAP 0x00c00000 /* ICH4: sample capability bits (RO) */
105 #define ICH_MULTICHAN_CAP 0x00300000 /* ICH4: multi-channel capability bits (RO) */
106 #define ICH_MD3 0x00020000 /* modem power down semaphore */
107 #define ICH_AD3 0x00010000 /* audio power down semaphore */
108 #define ICH_RCS 0x00008000 /* read completion status */
109 #define ICH_BIT3 0x00004000 /* bit 3 slot 12 */
110 #define ICH_BIT2 0x00002000 /* bit 2 slot 12 */
111 #define ICH_BIT1 0x00001000 /* bit 1 slot 12 */
112 #define ICH_SRI 0x00000800 /* secondary (AC_SDIN1) resume interrupt */
113 #define ICH_PRI 0x00000400 /* primary (AC_SDIN0) resume interrupt */
114 #define ICH_SCR 0x00000200 /* secondary (AC_SDIN1) codec ready */
115 #define ICH_PCR 0x00000100 /* primary (AC_SDIN0) codec ready */
116 #define ICH_MCINT 0x00000080 /* MIC capture interrupt */
117 #define ICH_POINT 0x00000040 /* playback interrupt */
118 #define ICH_PIINT 0x00000020 /* capture interrupt */
119 #define ICH_NVSPINT 0x00000010 /* nforce spdif interrupt */
120 #define ICH_MOINT 0x00000004 /* modem playback interrupt */
121 #define ICH_MIINT 0x00000002 /* modem capture interrupt */
122 #define ICH_GSCI 0x00000001 /* GPI status change interrupt */
123 #define ICH_REG_ACC_SEMA 0x44 /* byte - codec write semaphore */
124 #define ICH_CAS 0x01 /* codec access semaphore */
126 #define ICH_MAX_FRAGS 32 /* max hw frags */
133 enum { ICHD_MDMIN, ICHD_MDMOUT, ICHD_MDMLAST = ICHD_MDMOUT };
134 enum { ALID_MDMIN, ALID_MDMOUT, ALID_MDMLAST = ALID_MDMOUT };
136 #define get_ichdev(substream) (substream->runtime->private_data)
139 unsigned int ichd; /* ich device number */
140 unsigned long reg_offset; /* offset to bmaddr */
141 __le32 *bdbar; /* CPU address (32bit) */
142 unsigned int bdbar_addr; /* PCI bus address (32bit) */
143 struct snd_pcm_substream *substream;
144 unsigned int physbuf; /* physical address (32bit) */
146 unsigned int fragsize;
147 unsigned int fragsize1;
148 unsigned int position;
155 unsigned int ack_bit;
156 unsigned int roff_sr;
157 unsigned int roff_picb;
158 unsigned int int_sta_mask; /* interrupt status mask */
159 unsigned int ali_slot; /* ALI DMA slot */
160 struct snd_ac97 *ac97;
164 unsigned int device_type;
169 void __iomem *bmaddr;
172 struct snd_card *card;
175 struct snd_pcm *pcm[2];
176 struct ichdev ichd[2];
178 unsigned int in_ac97_init: 1;
180 struct snd_ac97_bus *ac97_bus;
181 struct snd_ac97 *ac97;
185 struct snd_dma_buffer bdbars;
187 u32 int_sta_reg; /* interrupt status register */
188 u32 int_sta_mask; /* interrupt status mask */
189 unsigned int pcm_pos_shift;
192 static const struct pci_device_id snd_intel8x0m_ids[] = {
193 { PCI_VDEVICE(INTEL, 0x2416), DEVICE_INTEL }, /* 82801AA */
194 { PCI_VDEVICE(INTEL, 0x2426), DEVICE_INTEL }, /* 82901AB */
195 { PCI_VDEVICE(INTEL, 0x2446), DEVICE_INTEL }, /* 82801BA */
196 { PCI_VDEVICE(INTEL, 0x2486), DEVICE_INTEL }, /* ICH3 */
197 { PCI_VDEVICE(INTEL, 0x24c6), DEVICE_INTEL }, /* ICH4 */
198 { PCI_VDEVICE(INTEL, 0x24d6), DEVICE_INTEL }, /* ICH5 */
199 { PCI_VDEVICE(INTEL, 0x266d), DEVICE_INTEL }, /* ICH6 */
200 { PCI_VDEVICE(INTEL, 0x27dd), DEVICE_INTEL }, /* ICH7 */
201 { PCI_VDEVICE(INTEL, 0x7196), DEVICE_INTEL }, /* 440MX */
202 { PCI_VDEVICE(AMD, 0x7446), DEVICE_INTEL }, /* AMD768 */
203 { PCI_VDEVICE(SI, 0x7013), DEVICE_SIS }, /* SI7013 */
204 { PCI_VDEVICE(NVIDIA, 0x01c1), DEVICE_NFORCE }, /* NFORCE */
205 { PCI_VDEVICE(NVIDIA, 0x0069), DEVICE_NFORCE }, /* NFORCE2 */
206 { PCI_VDEVICE(NVIDIA, 0x0089), DEVICE_NFORCE }, /* NFORCE2s */
207 { PCI_VDEVICE(NVIDIA, 0x00d9), DEVICE_NFORCE }, /* NFORCE3 */
208 { PCI_VDEVICE(AMD, 0x746e), DEVICE_INTEL }, /* AMD8111 */
210 { PCI_VDEVICE(AL, 0x5455), DEVICE_ALI }, /* Ali5455 */
215 MODULE_DEVICE_TABLE(pci, snd_intel8x0m_ids);
218 * Lowlevel I/O - busmaster
221 static inline u8 igetbyte(struct intel8x0m *chip, u32 offset)
223 return ioread8(chip->bmaddr + offset);
226 static inline u16 igetword(struct intel8x0m *chip, u32 offset)
228 return ioread16(chip->bmaddr + offset);
231 static inline u32 igetdword(struct intel8x0m *chip, u32 offset)
233 return ioread32(chip->bmaddr + offset);
236 static inline void iputbyte(struct intel8x0m *chip, u32 offset, u8 val)
238 iowrite8(val, chip->bmaddr + offset);
241 static inline void iputword(struct intel8x0m *chip, u32 offset, u16 val)
243 iowrite16(val, chip->bmaddr + offset);
246 static inline void iputdword(struct intel8x0m *chip, u32 offset, u32 val)
248 iowrite32(val, chip->bmaddr + offset);
252 * Lowlevel I/O - AC'97 registers
255 static inline u16 iagetword(struct intel8x0m *chip, u32 offset)
257 return ioread16(chip->addr + offset);
260 static inline void iaputword(struct intel8x0m *chip, u32 offset, u16 val)
262 iowrite16(val, chip->addr + offset);
270 * access to AC97 codec via normal i/o (for ICH and SIS7013)
273 /* return the GLOB_STA bit for the corresponding codec */
274 static unsigned int get_ich_codec_bit(struct intel8x0m *chip, unsigned int codec)
276 static const unsigned int codec_bit[3] = {
277 ICH_PCR, ICH_SCR, ICH_TCR
279 if (snd_BUG_ON(codec >= 3))
281 return codec_bit[codec];
284 static int snd_intel8x0m_codec_semaphore(struct intel8x0m *chip, unsigned int codec)
290 codec = get_ich_codec_bit(chip, codec);
293 if ((igetdword(chip, ICHREG(GLOB_STA)) & codec) == 0)
296 /* Anyone holding a semaphore for 1 msec should be shot... */
299 if (!(igetbyte(chip, ICHREG(ACC_SEMA)) & ICH_CAS))
304 /* access to some forbidden (non existent) ac97 registers will not
305 * reset the semaphore. So even if you don't get the semaphore, still
306 * continue the access. We don't need the semaphore anyway. */
307 dev_err(chip->card->dev,
308 "codec_semaphore: semaphore is not ready [0x%x][0x%x]\n",
309 igetbyte(chip, ICHREG(ACC_SEMA)), igetdword(chip, ICHREG(GLOB_STA)));
310 iagetword(chip, 0); /* clear semaphore flag */
311 /* I don't care about the semaphore */
315 static void snd_intel8x0m_codec_write(struct snd_ac97 *ac97,
319 struct intel8x0m *chip = ac97->private_data;
321 if (snd_intel8x0m_codec_semaphore(chip, ac97->num) < 0) {
322 if (! chip->in_ac97_init)
323 dev_err(chip->card->dev,
324 "codec_write %d: semaphore is not ready for register 0x%x\n",
327 iaputword(chip, reg + ac97->num * 0x80, val);
330 static unsigned short snd_intel8x0m_codec_read(struct snd_ac97 *ac97,
333 struct intel8x0m *chip = ac97->private_data;
337 if (snd_intel8x0m_codec_semaphore(chip, ac97->num) < 0) {
338 if (! chip->in_ac97_init)
339 dev_err(chip->card->dev,
340 "codec_read %d: semaphore is not ready for register 0x%x\n",
344 res = iagetword(chip, reg + ac97->num * 0x80);
345 if ((tmp = igetdword(chip, ICHREG(GLOB_STA))) & ICH_RCS) {
346 /* reset RCS and preserve other R/WC bits */
347 iputdword(chip, ICHREG(GLOB_STA),
348 tmp & ~(ICH_SRI|ICH_PRI|ICH_TRI|ICH_GSCI));
349 if (! chip->in_ac97_init)
350 dev_err(chip->card->dev,
351 "codec_read %d: read timeout for register 0x%x\n",
356 if (reg == AC97_GPIO_STATUS)
357 iagetword(chip, 0); /* clear semaphore */
365 static void snd_intel8x0m_setup_periods(struct intel8x0m *chip, struct ichdev *ichdev)
368 __le32 *bdbar = ichdev->bdbar;
369 unsigned long port = ichdev->reg_offset;
371 iputdword(chip, port + ICH_REG_OFF_BDBAR, ichdev->bdbar_addr);
372 if (ichdev->size == ichdev->fragsize) {
373 ichdev->ack_reload = ichdev->ack = 2;
374 ichdev->fragsize1 = ichdev->fragsize >> 1;
375 for (idx = 0; idx < (ICH_REG_LVI_MASK + 1) * 2; idx += 4) {
376 bdbar[idx + 0] = cpu_to_le32(ichdev->physbuf);
377 bdbar[idx + 1] = cpu_to_le32(0x80000000 | /* interrupt on completion */
378 ichdev->fragsize1 >> chip->pcm_pos_shift);
379 bdbar[idx + 2] = cpu_to_le32(ichdev->physbuf + (ichdev->size >> 1));
380 bdbar[idx + 3] = cpu_to_le32(0x80000000 | /* interrupt on completion */
381 ichdev->fragsize1 >> chip->pcm_pos_shift);
385 ichdev->ack_reload = ichdev->ack = 1;
386 ichdev->fragsize1 = ichdev->fragsize;
387 for (idx = 0; idx < (ICH_REG_LVI_MASK + 1) * 2; idx += 2) {
388 bdbar[idx + 0] = cpu_to_le32(ichdev->physbuf + (((idx >> 1) * ichdev->fragsize) % ichdev->size));
389 bdbar[idx + 1] = cpu_to_le32(0x80000000 | /* interrupt on completion */
390 ichdev->fragsize >> chip->pcm_pos_shift);
392 dev_dbg(chip->card->dev, "bdbar[%i] = 0x%x [0x%x]\n",
393 idx + 0, bdbar[idx + 0], bdbar[idx + 1]);
396 ichdev->frags = ichdev->size / ichdev->fragsize;
398 iputbyte(chip, port + ICH_REG_OFF_LVI, ichdev->lvi = ICH_REG_LVI_MASK);
400 iputbyte(chip, port + ICH_REG_OFF_CIV, 0);
401 ichdev->lvi_frag = ICH_REG_LVI_MASK % ichdev->frags;
402 ichdev->position = 0;
404 dev_dbg(chip->card->dev,
405 "lvi_frag = %i, frags = %i, period_size = 0x%x, period_size1 = 0x%x\n",
406 ichdev->lvi_frag, ichdev->frags, ichdev->fragsize,
409 /* clear interrupts */
410 iputbyte(chip, port + ichdev->roff_sr, ICH_FIFOE | ICH_BCIS | ICH_LVBCI);
417 static inline void snd_intel8x0m_update(struct intel8x0m *chip, struct ichdev *ichdev)
419 unsigned long port = ichdev->reg_offset;
423 civ = igetbyte(chip, port + ICH_REG_OFF_CIV);
424 if (civ == ichdev->civ) {
425 // snd_printd("civ same %d\n", civ);
428 ichdev->civ &= ICH_REG_LVI_MASK;
430 step = civ - ichdev->civ;
432 step += ICH_REG_LVI_MASK + 1;
434 // snd_printd("step = %d, %d -> %d\n", step, ichdev->civ, civ);
438 ichdev->position += step * ichdev->fragsize1;
439 ichdev->position %= ichdev->size;
441 ichdev->lvi &= ICH_REG_LVI_MASK;
442 iputbyte(chip, port + ICH_REG_OFF_LVI, ichdev->lvi);
443 for (i = 0; i < step; i++) {
445 ichdev->lvi_frag %= ichdev->frags;
446 ichdev->bdbar[ichdev->lvi * 2] = cpu_to_le32(ichdev->physbuf +
450 dev_dbg(chip->card->dev,
451 "new: bdbar[%i] = 0x%x [0x%x], prefetch = %i, all = 0x%x, 0x%x\n",
452 ichdev->lvi * 2, ichdev->bdbar[ichdev->lvi * 2],
453 ichdev->bdbar[ichdev->lvi * 2 + 1], inb(ICH_REG_OFF_PIV + port),
454 inl(port + 4), inb(port + ICH_REG_OFF_CR));
456 if (--ichdev->ack == 0) {
457 ichdev->ack = ichdev->ack_reload;
461 if (ack && ichdev->substream) {
462 spin_unlock(&chip->reg_lock);
463 snd_pcm_period_elapsed(ichdev->substream);
464 spin_lock(&chip->reg_lock);
466 iputbyte(chip, port + ichdev->roff_sr, ICH_FIFOE | ICH_BCIS | ICH_LVBCI);
469 static irqreturn_t snd_intel8x0m_interrupt(int irq, void *dev_id)
471 struct intel8x0m *chip = dev_id;
472 struct ichdev *ichdev;
476 spin_lock(&chip->reg_lock);
477 status = igetdword(chip, chip->int_sta_reg);
478 if (status == 0xffffffff) { /* we are not yet resumed */
479 spin_unlock(&chip->reg_lock);
482 if ((status & chip->int_sta_mask) == 0) {
484 iputdword(chip, chip->int_sta_reg, status);
485 spin_unlock(&chip->reg_lock);
489 for (i = 0; i < chip->bdbars_count; i++) {
490 ichdev = &chip->ichd[i];
491 if (status & ichdev->int_sta_mask)
492 snd_intel8x0m_update(chip, ichdev);
496 iputdword(chip, chip->int_sta_reg, status & chip->int_sta_mask);
497 spin_unlock(&chip->reg_lock);
506 static int snd_intel8x0m_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
508 struct intel8x0m *chip = snd_pcm_substream_chip(substream);
509 struct ichdev *ichdev = get_ichdev(substream);
510 unsigned char val = 0;
511 unsigned long port = ichdev->reg_offset;
514 case SNDRV_PCM_TRIGGER_START:
515 case SNDRV_PCM_TRIGGER_RESUME:
516 val = ICH_IOCE | ICH_STARTBM;
518 case SNDRV_PCM_TRIGGER_STOP:
519 case SNDRV_PCM_TRIGGER_SUSPEND:
522 case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
525 case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
526 val = ICH_IOCE | ICH_STARTBM;
531 iputbyte(chip, port + ICH_REG_OFF_CR, val);
532 if (cmd == SNDRV_PCM_TRIGGER_STOP) {
533 /* wait until DMA stopped */
534 while (!(igetbyte(chip, port + ichdev->roff_sr) & ICH_DCH)) ;
535 /* reset whole DMA things */
536 iputbyte(chip, port + ICH_REG_OFF_CR, ICH_RESETREGS);
541 static snd_pcm_uframes_t snd_intel8x0m_pcm_pointer(struct snd_pcm_substream *substream)
543 struct intel8x0m *chip = snd_pcm_substream_chip(substream);
544 struct ichdev *ichdev = get_ichdev(substream);
547 ptr1 = igetword(chip, ichdev->reg_offset + ichdev->roff_picb) << chip->pcm_pos_shift;
549 ptr = ichdev->fragsize1 - ptr1;
552 ptr += ichdev->position;
553 if (ptr >= ichdev->size)
555 return bytes_to_frames(substream->runtime, ptr);
558 static int snd_intel8x0m_pcm_prepare(struct snd_pcm_substream *substream)
560 struct intel8x0m *chip = snd_pcm_substream_chip(substream);
561 struct snd_pcm_runtime *runtime = substream->runtime;
562 struct ichdev *ichdev = get_ichdev(substream);
564 ichdev->physbuf = runtime->dma_addr;
565 ichdev->size = snd_pcm_lib_buffer_bytes(substream);
566 ichdev->fragsize = snd_pcm_lib_period_bytes(substream);
567 snd_ac97_write(ichdev->ac97, AC97_LINE1_RATE, runtime->rate);
568 snd_ac97_write(ichdev->ac97, AC97_LINE1_LEVEL, 0);
569 snd_intel8x0m_setup_periods(chip, ichdev);
573 static const struct snd_pcm_hardware snd_intel8x0m_stream =
575 .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
576 SNDRV_PCM_INFO_BLOCK_TRANSFER |
577 SNDRV_PCM_INFO_MMAP_VALID |
578 SNDRV_PCM_INFO_PAUSE |
579 SNDRV_PCM_INFO_RESUME),
580 .formats = SNDRV_PCM_FMTBIT_S16_LE,
581 .rates = SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_KNOT,
586 .buffer_bytes_max = 64 * 1024,
587 .period_bytes_min = 32,
588 .period_bytes_max = 64 * 1024,
595 static int snd_intel8x0m_pcm_open(struct snd_pcm_substream *substream, struct ichdev *ichdev)
597 static const unsigned int rates[] = { 8000, 9600, 12000, 16000 };
598 static const struct snd_pcm_hw_constraint_list hw_constraints_rates = {
599 .count = ARRAY_SIZE(rates),
603 struct snd_pcm_runtime *runtime = substream->runtime;
606 ichdev->substream = substream;
607 runtime->hw = snd_intel8x0m_stream;
608 err = snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
609 &hw_constraints_rates);
612 runtime->private_data = ichdev;
616 static int snd_intel8x0m_playback_open(struct snd_pcm_substream *substream)
618 struct intel8x0m *chip = snd_pcm_substream_chip(substream);
620 return snd_intel8x0m_pcm_open(substream, &chip->ichd[ICHD_MDMOUT]);
623 static int snd_intel8x0m_playback_close(struct snd_pcm_substream *substream)
625 struct intel8x0m *chip = snd_pcm_substream_chip(substream);
627 chip->ichd[ICHD_MDMOUT].substream = NULL;
631 static int snd_intel8x0m_capture_open(struct snd_pcm_substream *substream)
633 struct intel8x0m *chip = snd_pcm_substream_chip(substream);
635 return snd_intel8x0m_pcm_open(substream, &chip->ichd[ICHD_MDMIN]);
638 static int snd_intel8x0m_capture_close(struct snd_pcm_substream *substream)
640 struct intel8x0m *chip = snd_pcm_substream_chip(substream);
642 chip->ichd[ICHD_MDMIN].substream = NULL;
647 static const struct snd_pcm_ops snd_intel8x0m_playback_ops = {
648 .open = snd_intel8x0m_playback_open,
649 .close = snd_intel8x0m_playback_close,
650 .prepare = snd_intel8x0m_pcm_prepare,
651 .trigger = snd_intel8x0m_pcm_trigger,
652 .pointer = snd_intel8x0m_pcm_pointer,
655 static const struct snd_pcm_ops snd_intel8x0m_capture_ops = {
656 .open = snd_intel8x0m_capture_open,
657 .close = snd_intel8x0m_capture_close,
658 .prepare = snd_intel8x0m_pcm_prepare,
659 .trigger = snd_intel8x0m_pcm_trigger,
660 .pointer = snd_intel8x0m_pcm_pointer,
664 struct ich_pcm_table {
666 const struct snd_pcm_ops *playback_ops;
667 const struct snd_pcm_ops *capture_ops;
668 size_t prealloc_size;
669 size_t prealloc_max_size;
673 static int snd_intel8x0m_pcm1(struct intel8x0m *chip, int device,
674 const struct ich_pcm_table *rec)
681 sprintf(name, "Intel ICH - %s", rec->suffix);
683 strcpy(name, "Intel ICH");
684 err = snd_pcm_new(chip->card, name, device,
685 rec->playback_ops ? 1 : 0,
686 rec->capture_ops ? 1 : 0, &pcm);
690 if (rec->playback_ops)
691 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, rec->playback_ops);
692 if (rec->capture_ops)
693 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, rec->capture_ops);
695 pcm->private_data = chip;
697 pcm->dev_class = SNDRV_PCM_CLASS_MODEM;
699 sprintf(pcm->name, "%s - %s", chip->card->shortname, rec->suffix);
701 strcpy(pcm->name, chip->card->shortname);
702 chip->pcm[device] = pcm;
704 snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV,
707 rec->prealloc_max_size);
712 static const struct ich_pcm_table intel_pcms[] = {
715 .playback_ops = &snd_intel8x0m_playback_ops,
716 .capture_ops = &snd_intel8x0m_capture_ops,
717 .prealloc_size = 32 * 1024,
718 .prealloc_max_size = 64 * 1024,
722 static int snd_intel8x0m_pcm(struct intel8x0m *chip)
724 int i, tblsize, device, err;
725 const struct ich_pcm_table *tbl, *rec;
731 switch (chip->device_type) {
734 tblsize = ARRAY_SIZE(nforce_pcms);
738 tblsize = ARRAY_SIZE(ali_pcms);
747 for (i = 0; i < tblsize; i++) {
749 if (i > 0 && rec->ac97_idx) {
750 /* activate PCM only when associated AC'97 codec */
751 if (! chip->ichd[rec->ac97_idx].ac97)
754 err = snd_intel8x0m_pcm1(chip, device, rec);
760 chip->pcm_devs = device;
769 static void snd_intel8x0m_mixer_free_ac97_bus(struct snd_ac97_bus *bus)
771 struct intel8x0m *chip = bus->private_data;
772 chip->ac97_bus = NULL;
775 static void snd_intel8x0m_mixer_free_ac97(struct snd_ac97 *ac97)
777 struct intel8x0m *chip = ac97->private_data;
782 static int snd_intel8x0m_mixer(struct intel8x0m *chip, int ac97_clock)
784 struct snd_ac97_bus *pbus;
785 struct snd_ac97_template ac97;
786 struct snd_ac97 *x97;
788 unsigned int glob_sta = 0;
789 static const struct snd_ac97_bus_ops ops = {
790 .write = snd_intel8x0m_codec_write,
791 .read = snd_intel8x0m_codec_read,
794 chip->in_ac97_init = 1;
796 memset(&ac97, 0, sizeof(ac97));
797 ac97.private_data = chip;
798 ac97.private_free = snd_intel8x0m_mixer_free_ac97;
799 ac97.scaps = AC97_SCAP_SKIP_AUDIO | AC97_SCAP_POWER_SAVE;
801 glob_sta = igetdword(chip, ICHREG(GLOB_STA));
803 if ((err = snd_ac97_bus(chip->card, 0, &ops, chip, &pbus)) < 0)
805 pbus->private_free = snd_intel8x0m_mixer_free_ac97_bus;
806 if (ac97_clock >= 8000 && ac97_clock <= 48000)
807 pbus->clock = ac97_clock;
808 chip->ac97_bus = pbus;
810 ac97.pci = chip->pci;
811 ac97.num = glob_sta & ICH_SCR ? 1 : 0;
812 if ((err = snd_ac97_mixer(pbus, &ac97, &x97)) < 0) {
813 dev_err(chip->card->dev,
814 "Unable to initialize codec #%d\n", ac97.num);
820 if(ac97_is_modem(x97) && !chip->ichd[ICHD_MDMIN].ac97) {
821 chip->ichd[ICHD_MDMIN].ac97 = x97;
822 chip->ichd[ICHD_MDMOUT].ac97 = x97;
825 chip->in_ac97_init = 0;
829 /* clear the cold-reset bit for the next chance */
830 if (chip->device_type != DEVICE_ALI)
831 iputdword(chip, ICHREG(GLOB_CNT),
832 igetdword(chip, ICHREG(GLOB_CNT)) & ~ICH_AC97COLD);
841 static int snd_intel8x0m_ich_chip_init(struct intel8x0m *chip, int probing)
843 unsigned long end_time;
844 unsigned int cnt, status, nstatus;
846 /* put logic to right state */
847 /* first clear status bits */
848 status = ICH_RCS | ICH_MIINT | ICH_MOINT;
849 cnt = igetdword(chip, ICHREG(GLOB_STA));
850 iputdword(chip, ICHREG(GLOB_STA), cnt & status);
852 /* ACLink on, 2 channels */
853 cnt = igetdword(chip, ICHREG(GLOB_CNT));
854 cnt &= ~(ICH_ACLINK);
855 /* finish cold or do warm reset */
856 cnt |= (cnt & ICH_AC97COLD) == 0 ? ICH_AC97COLD : ICH_AC97WARM;
857 iputdword(chip, ICHREG(GLOB_CNT), cnt);
858 usleep_range(500, 1000); /* give warm reset some time */
859 end_time = jiffies + HZ / 4;
861 if ((igetdword(chip, ICHREG(GLOB_CNT)) & ICH_AC97WARM) == 0)
863 schedule_timeout_uninterruptible(1);
864 } while (time_after_eq(end_time, jiffies));
865 dev_err(chip->card->dev, "AC'97 warm reset still in progress? [0x%x]\n",
866 igetdword(chip, ICHREG(GLOB_CNT)));
871 /* wait for any codec ready status.
872 * Once it becomes ready it should remain ready
873 * as long as we do not disable the ac97 link.
875 end_time = jiffies + HZ;
877 status = igetdword(chip, ICHREG(GLOB_STA)) &
878 (ICH_PCR | ICH_SCR | ICH_TCR);
881 schedule_timeout_uninterruptible(1);
882 } while (time_after_eq(end_time, jiffies));
884 /* no codec is found */
885 dev_err(chip->card->dev,
886 "codec_ready: codec is not ready [0x%x]\n",
887 igetdword(chip, ICHREG(GLOB_STA)));
891 /* up to two codecs (modem cannot be tertiary with ICH4) */
892 nstatus = ICH_PCR | ICH_SCR;
894 /* wait for other codecs ready status. */
895 end_time = jiffies + HZ / 4;
896 while (status != nstatus && time_after_eq(end_time, jiffies)) {
897 schedule_timeout_uninterruptible(1);
898 status |= igetdword(chip, ICHREG(GLOB_STA)) & nstatus;
905 status |= get_ich_codec_bit(chip, chip->ac97->num);
906 /* wait until all the probed codecs are ready */
907 end_time = jiffies + HZ;
909 nstatus = igetdword(chip, ICHREG(GLOB_STA)) &
910 (ICH_PCR | ICH_SCR | ICH_TCR);
911 if (status == nstatus)
913 schedule_timeout_uninterruptible(1);
914 } while (time_after_eq(end_time, jiffies));
917 if (chip->device_type == DEVICE_SIS) {
918 /* unmute the output on SIS7012 */
919 iputword(chip, 0x4c, igetword(chip, 0x4c) | 1);
925 static int snd_intel8x0m_chip_init(struct intel8x0m *chip, int probing)
930 if ((err = snd_intel8x0m_ich_chip_init(chip, probing)) < 0)
932 iagetword(chip, 0); /* clear semaphore flag */
934 /* disable interrupts */
935 for (i = 0; i < chip->bdbars_count; i++)
936 iputbyte(chip, ICH_REG_OFF_CR + chip->ichd[i].reg_offset, 0x00);
938 for (i = 0; i < chip->bdbars_count; i++)
939 iputbyte(chip, ICH_REG_OFF_CR + chip->ichd[i].reg_offset, ICH_RESETREGS);
940 /* initialize Buffer Descriptor Lists */
941 for (i = 0; i < chip->bdbars_count; i++)
942 iputdword(chip, ICH_REG_OFF_BDBAR + chip->ichd[i].reg_offset, chip->ichd[i].bdbar_addr);
946 static int snd_intel8x0m_free(struct intel8x0m *chip)
952 /* disable interrupts */
953 for (i = 0; i < chip->bdbars_count; i++)
954 iputbyte(chip, ICH_REG_OFF_CR + chip->ichd[i].reg_offset, 0x00);
956 for (i = 0; i < chip->bdbars_count; i++)
957 iputbyte(chip, ICH_REG_OFF_CR + chip->ichd[i].reg_offset, ICH_RESETREGS);
960 free_irq(chip->irq, chip);
961 if (chip->bdbars.area)
962 snd_dma_free_pages(&chip->bdbars);
964 pci_iounmap(chip->pci, chip->addr);
966 pci_iounmap(chip->pci, chip->bmaddr);
967 pci_release_regions(chip->pci);
968 pci_disable_device(chip->pci);
973 #ifdef CONFIG_PM_SLEEP
977 static int intel8x0m_suspend(struct device *dev)
979 struct snd_card *card = dev_get_drvdata(dev);
980 struct intel8x0m *chip = card->private_data;
982 snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
983 snd_ac97_suspend(chip->ac97);
984 if (chip->irq >= 0) {
985 free_irq(chip->irq, chip);
992 static int intel8x0m_resume(struct device *dev)
994 struct pci_dev *pci = to_pci_dev(dev);
995 struct snd_card *card = dev_get_drvdata(dev);
996 struct intel8x0m *chip = card->private_data;
998 if (request_irq(pci->irq, snd_intel8x0m_interrupt,
999 IRQF_SHARED, KBUILD_MODNAME, chip)) {
1000 dev_err(dev, "unable to grab IRQ %d, disabling device\n",
1002 snd_card_disconnect(card);
1005 chip->irq = pci->irq;
1006 card->sync_irq = chip->irq;
1007 snd_intel8x0m_chip_init(chip, 0);
1008 snd_ac97_resume(chip->ac97);
1010 snd_power_change_state(card, SNDRV_CTL_POWER_D0);
1014 static SIMPLE_DEV_PM_OPS(intel8x0m_pm, intel8x0m_suspend, intel8x0m_resume);
1015 #define INTEL8X0M_PM_OPS &intel8x0m_pm
1017 #define INTEL8X0M_PM_OPS NULL
1018 #endif /* CONFIG_PM_SLEEP */
1020 static void snd_intel8x0m_proc_read(struct snd_info_entry * entry,
1021 struct snd_info_buffer *buffer)
1023 struct intel8x0m *chip = entry->private_data;
1026 snd_iprintf(buffer, "Intel8x0m\n\n");
1027 if (chip->device_type == DEVICE_ALI)
1029 tmp = igetdword(chip, ICHREG(GLOB_STA));
1030 snd_iprintf(buffer, "Global control : 0x%08x\n",
1031 igetdword(chip, ICHREG(GLOB_CNT)));
1032 snd_iprintf(buffer, "Global status : 0x%08x\n", tmp);
1033 snd_iprintf(buffer, "AC'97 codecs ready :%s%s%s%s\n",
1034 tmp & ICH_PCR ? " primary" : "",
1035 tmp & ICH_SCR ? " secondary" : "",
1036 tmp & ICH_TCR ? " tertiary" : "",
1037 (tmp & (ICH_PCR | ICH_SCR | ICH_TCR)) == 0 ? " none" : "");
1040 static void snd_intel8x0m_proc_init(struct intel8x0m *chip)
1042 snd_card_ro_proc_new(chip->card, "intel8x0m", chip,
1043 snd_intel8x0m_proc_read);
1046 static int snd_intel8x0m_dev_free(struct snd_device *device)
1048 struct intel8x0m *chip = device->device_data;
1049 return snd_intel8x0m_free(chip);
1052 struct ich_reg_info {
1053 unsigned int int_sta_mask;
1054 unsigned int offset;
1057 static int snd_intel8x0m_create(struct snd_card *card,
1058 struct pci_dev *pci,
1059 unsigned long device_type,
1060 struct intel8x0m **r_intel8x0m)
1062 struct intel8x0m *chip;
1065 unsigned int int_sta_masks;
1066 struct ichdev *ichdev;
1067 static const struct snd_device_ops ops = {
1068 .dev_free = snd_intel8x0m_dev_free,
1070 static const struct ich_reg_info intel_regs[2] = {
1072 { ICH_MOINT, 0x10 },
1074 const struct ich_reg_info *tbl;
1076 *r_intel8x0m = NULL;
1078 if ((err = pci_enable_device(pci)) < 0)
1081 chip = kzalloc(sizeof(*chip), GFP_KERNEL);
1083 pci_disable_device(pci);
1086 spin_lock_init(&chip->reg_lock);
1087 chip->device_type = device_type;
1092 if ((err = pci_request_regions(pci, card->shortname)) < 0) {
1094 pci_disable_device(pci);
1098 if (device_type == DEVICE_ALI) {
1099 /* ALI5455 has no ac97 region */
1100 chip->bmaddr = pci_iomap(pci, 0, 0);
1104 if (pci_resource_flags(pci, 2) & IORESOURCE_MEM) /* ICH4 and Nforce */
1105 chip->addr = pci_iomap(pci, 2, 0);
1107 chip->addr = pci_iomap(pci, 0, 0);
1109 dev_err(card->dev, "AC'97 space ioremap problem\n");
1110 snd_intel8x0m_free(chip);
1113 if (pci_resource_flags(pci, 3) & IORESOURCE_MEM) /* ICH4 */
1114 chip->bmaddr = pci_iomap(pci, 3, 0);
1116 chip->bmaddr = pci_iomap(pci, 1, 0);
1119 if (!chip->bmaddr) {
1120 dev_err(card->dev, "Controller space ioremap problem\n");
1121 snd_intel8x0m_free(chip);
1125 /* initialize offsets */
1126 chip->bdbars_count = 2;
1129 for (i = 0; i < chip->bdbars_count; i++) {
1130 ichdev = &chip->ichd[i];
1132 ichdev->reg_offset = tbl[i].offset;
1133 ichdev->int_sta_mask = tbl[i].int_sta_mask;
1134 if (device_type == DEVICE_SIS) {
1135 /* SiS 7013 swaps the registers */
1136 ichdev->roff_sr = ICH_REG_OFF_PICB;
1137 ichdev->roff_picb = ICH_REG_OFF_SR;
1139 ichdev->roff_sr = ICH_REG_OFF_SR;
1140 ichdev->roff_picb = ICH_REG_OFF_PICB;
1142 if (device_type == DEVICE_ALI)
1143 ichdev->ali_slot = (ichdev->reg_offset - 0x40) / 0x10;
1145 /* SIS7013 handles the pcm data in bytes, others are in words */
1146 chip->pcm_pos_shift = (device_type == DEVICE_SIS) ? 0 : 1;
1148 /* allocate buffer descriptor lists */
1149 /* the start of each lists must be aligned to 8 bytes */
1150 if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, &pci->dev,
1151 chip->bdbars_count * sizeof(u32) * ICH_MAX_FRAGS * 2,
1152 &chip->bdbars) < 0) {
1153 snd_intel8x0m_free(chip);
1156 /* tables must be aligned to 8 bytes here, but the kernel pages
1157 are much bigger, so we don't care (on i386) */
1159 for (i = 0; i < chip->bdbars_count; i++) {
1160 ichdev = &chip->ichd[i];
1161 ichdev->bdbar = ((__le32 *)chip->bdbars.area) + (i * ICH_MAX_FRAGS * 2);
1162 ichdev->bdbar_addr = chip->bdbars.addr + (i * sizeof(u32) * ICH_MAX_FRAGS * 2);
1163 int_sta_masks |= ichdev->int_sta_mask;
1165 chip->int_sta_reg = ICH_REG_GLOB_STA;
1166 chip->int_sta_mask = int_sta_masks;
1168 pci_set_master(pci);
1170 if ((err = snd_intel8x0m_chip_init(chip, 1)) < 0) {
1171 snd_intel8x0m_free(chip);
1175 if (request_irq(pci->irq, snd_intel8x0m_interrupt, IRQF_SHARED,
1176 KBUILD_MODNAME, chip)) {
1177 dev_err(card->dev, "unable to grab IRQ %d\n", pci->irq);
1178 snd_intel8x0m_free(chip);
1181 chip->irq = pci->irq;
1182 card->sync_irq = chip->irq;
1184 if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
1185 snd_intel8x0m_free(chip);
1189 *r_intel8x0m = chip;
1193 static struct shortname_table {
1197 { PCI_DEVICE_ID_INTEL_82801AA_6, "Intel 82801AA-ICH" },
1198 { PCI_DEVICE_ID_INTEL_82801AB_6, "Intel 82901AB-ICH0" },
1199 { PCI_DEVICE_ID_INTEL_82801BA_6, "Intel 82801BA-ICH2" },
1200 { PCI_DEVICE_ID_INTEL_440MX_6, "Intel 440MX" },
1201 { PCI_DEVICE_ID_INTEL_82801CA_6, "Intel 82801CA-ICH3" },
1202 { PCI_DEVICE_ID_INTEL_82801DB_6, "Intel 82801DB-ICH4" },
1203 { PCI_DEVICE_ID_INTEL_82801EB_6, "Intel ICH5" },
1204 { PCI_DEVICE_ID_INTEL_ICH6_17, "Intel ICH6" },
1205 { PCI_DEVICE_ID_INTEL_ICH7_19, "Intel ICH7" },
1206 { 0x7446, "AMD AMD768" },
1207 { PCI_DEVICE_ID_SI_7013, "SiS SI7013" },
1208 { PCI_DEVICE_ID_NVIDIA_MCP1_MODEM, "NVidia nForce" },
1209 { PCI_DEVICE_ID_NVIDIA_MCP2_MODEM, "NVidia nForce2" },
1210 { PCI_DEVICE_ID_NVIDIA_MCP2S_MODEM, "NVidia nForce2s" },
1211 { PCI_DEVICE_ID_NVIDIA_MCP3_MODEM, "NVidia nForce3" },
1212 { 0x746e, "AMD AMD8111" },
1214 { 0x5455, "ALi M5455" },
1219 static int snd_intel8x0m_probe(struct pci_dev *pci,
1220 const struct pci_device_id *pci_id)
1222 struct snd_card *card;
1223 struct intel8x0m *chip;
1225 struct shortname_table *name;
1227 err = snd_card_new(&pci->dev, index, id, THIS_MODULE, 0, &card);
1231 strcpy(card->driver, "ICH-MODEM");
1232 strcpy(card->shortname, "Intel ICH");
1233 for (name = shortnames; name->id; name++) {
1234 if (pci->device == name->id) {
1235 strcpy(card->shortname, name->s);
1239 strcat(card->shortname," Modem");
1241 if ((err = snd_intel8x0m_create(card, pci, pci_id->driver_data, &chip)) < 0) {
1242 snd_card_free(card);
1245 card->private_data = chip;
1247 if ((err = snd_intel8x0m_mixer(chip, ac97_clock)) < 0) {
1248 snd_card_free(card);
1251 if ((err = snd_intel8x0m_pcm(chip)) < 0) {
1252 snd_card_free(card);
1256 snd_intel8x0m_proc_init(chip);
1258 sprintf(card->longname, "%s at irq %i",
1259 card->shortname, chip->irq);
1261 if ((err = snd_card_register(card)) < 0) {
1262 snd_card_free(card);
1265 pci_set_drvdata(pci, card);
1269 static void snd_intel8x0m_remove(struct pci_dev *pci)
1271 snd_card_free(pci_get_drvdata(pci));
1274 static struct pci_driver intel8x0m_driver = {
1275 .name = KBUILD_MODNAME,
1276 .id_table = snd_intel8x0m_ids,
1277 .probe = snd_intel8x0m_probe,
1278 .remove = snd_intel8x0m_remove,
1280 .pm = INTEL8X0M_PM_OPS,
1284 module_pci_driver(intel8x0m_driver);