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 tmp = igetdword(chip, ICHREG(GLOB_STA));
347 /* reset RCS and preserve other R/WC bits */
348 iputdword(chip, ICHREG(GLOB_STA),
349 tmp & ~(ICH_SRI|ICH_PRI|ICH_TRI|ICH_GSCI));
350 if (! chip->in_ac97_init)
351 dev_err(chip->card->dev,
352 "codec_read %d: read timeout for register 0x%x\n",
357 if (reg == AC97_GPIO_STATUS)
358 iagetword(chip, 0); /* clear semaphore */
366 static void snd_intel8x0m_setup_periods(struct intel8x0m *chip, struct ichdev *ichdev)
369 __le32 *bdbar = ichdev->bdbar;
370 unsigned long port = ichdev->reg_offset;
372 iputdword(chip, port + ICH_REG_OFF_BDBAR, ichdev->bdbar_addr);
373 if (ichdev->size == ichdev->fragsize) {
374 ichdev->ack_reload = ichdev->ack = 2;
375 ichdev->fragsize1 = ichdev->fragsize >> 1;
376 for (idx = 0; idx < (ICH_REG_LVI_MASK + 1) * 2; idx += 4) {
377 bdbar[idx + 0] = cpu_to_le32(ichdev->physbuf);
378 bdbar[idx + 1] = cpu_to_le32(0x80000000 | /* interrupt on completion */
379 ichdev->fragsize1 >> chip->pcm_pos_shift);
380 bdbar[idx + 2] = cpu_to_le32(ichdev->physbuf + (ichdev->size >> 1));
381 bdbar[idx + 3] = cpu_to_le32(0x80000000 | /* interrupt on completion */
382 ichdev->fragsize1 >> chip->pcm_pos_shift);
386 ichdev->ack_reload = ichdev->ack = 1;
387 ichdev->fragsize1 = ichdev->fragsize;
388 for (idx = 0; idx < (ICH_REG_LVI_MASK + 1) * 2; idx += 2) {
389 bdbar[idx + 0] = cpu_to_le32(ichdev->physbuf + (((idx >> 1) * ichdev->fragsize) % ichdev->size));
390 bdbar[idx + 1] = cpu_to_le32(0x80000000 | /* interrupt on completion */
391 ichdev->fragsize >> chip->pcm_pos_shift);
393 dev_dbg(chip->card->dev, "bdbar[%i] = 0x%x [0x%x]\n",
394 idx + 0, bdbar[idx + 0], bdbar[idx + 1]);
397 ichdev->frags = ichdev->size / ichdev->fragsize;
399 iputbyte(chip, port + ICH_REG_OFF_LVI, ichdev->lvi = ICH_REG_LVI_MASK);
401 iputbyte(chip, port + ICH_REG_OFF_CIV, 0);
402 ichdev->lvi_frag = ICH_REG_LVI_MASK % ichdev->frags;
403 ichdev->position = 0;
405 dev_dbg(chip->card->dev,
406 "lvi_frag = %i, frags = %i, period_size = 0x%x, period_size1 = 0x%x\n",
407 ichdev->lvi_frag, ichdev->frags, ichdev->fragsize,
410 /* clear interrupts */
411 iputbyte(chip, port + ichdev->roff_sr, ICH_FIFOE | ICH_BCIS | ICH_LVBCI);
418 static inline void snd_intel8x0m_update(struct intel8x0m *chip, struct ichdev *ichdev)
420 unsigned long port = ichdev->reg_offset;
424 civ = igetbyte(chip, port + ICH_REG_OFF_CIV);
425 if (civ == ichdev->civ) {
426 // snd_printd("civ same %d\n", civ);
429 ichdev->civ &= ICH_REG_LVI_MASK;
431 step = civ - ichdev->civ;
433 step += ICH_REG_LVI_MASK + 1;
435 // snd_printd("step = %d, %d -> %d\n", step, ichdev->civ, civ);
439 ichdev->position += step * ichdev->fragsize1;
440 ichdev->position %= ichdev->size;
442 ichdev->lvi &= ICH_REG_LVI_MASK;
443 iputbyte(chip, port + ICH_REG_OFF_LVI, ichdev->lvi);
444 for (i = 0; i < step; i++) {
446 ichdev->lvi_frag %= ichdev->frags;
447 ichdev->bdbar[ichdev->lvi * 2] = cpu_to_le32(ichdev->physbuf +
451 dev_dbg(chip->card->dev,
452 "new: bdbar[%i] = 0x%x [0x%x], prefetch = %i, all = 0x%x, 0x%x\n",
453 ichdev->lvi * 2, ichdev->bdbar[ichdev->lvi * 2],
454 ichdev->bdbar[ichdev->lvi * 2 + 1], inb(ICH_REG_OFF_PIV + port),
455 inl(port + 4), inb(port + ICH_REG_OFF_CR));
457 if (--ichdev->ack == 0) {
458 ichdev->ack = ichdev->ack_reload;
462 if (ack && ichdev->substream) {
463 spin_unlock(&chip->reg_lock);
464 snd_pcm_period_elapsed(ichdev->substream);
465 spin_lock(&chip->reg_lock);
467 iputbyte(chip, port + ichdev->roff_sr, ICH_FIFOE | ICH_BCIS | ICH_LVBCI);
470 static irqreturn_t snd_intel8x0m_interrupt(int irq, void *dev_id)
472 struct intel8x0m *chip = dev_id;
473 struct ichdev *ichdev;
477 spin_lock(&chip->reg_lock);
478 status = igetdword(chip, chip->int_sta_reg);
479 if (status == 0xffffffff) { /* we are not yet resumed */
480 spin_unlock(&chip->reg_lock);
483 if ((status & chip->int_sta_mask) == 0) {
485 iputdword(chip, chip->int_sta_reg, status);
486 spin_unlock(&chip->reg_lock);
490 for (i = 0; i < chip->bdbars_count; i++) {
491 ichdev = &chip->ichd[i];
492 if (status & ichdev->int_sta_mask)
493 snd_intel8x0m_update(chip, ichdev);
497 iputdword(chip, chip->int_sta_reg, status & chip->int_sta_mask);
498 spin_unlock(&chip->reg_lock);
507 static int snd_intel8x0m_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
509 struct intel8x0m *chip = snd_pcm_substream_chip(substream);
510 struct ichdev *ichdev = get_ichdev(substream);
511 unsigned char val = 0;
512 unsigned long port = ichdev->reg_offset;
515 case SNDRV_PCM_TRIGGER_START:
516 case SNDRV_PCM_TRIGGER_RESUME:
517 val = ICH_IOCE | ICH_STARTBM;
519 case SNDRV_PCM_TRIGGER_STOP:
520 case SNDRV_PCM_TRIGGER_SUSPEND:
523 case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
526 case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
527 val = ICH_IOCE | ICH_STARTBM;
532 iputbyte(chip, port + ICH_REG_OFF_CR, val);
533 if (cmd == SNDRV_PCM_TRIGGER_STOP) {
534 /* wait until DMA stopped */
535 while (!(igetbyte(chip, port + ichdev->roff_sr) & ICH_DCH)) ;
536 /* reset whole DMA things */
537 iputbyte(chip, port + ICH_REG_OFF_CR, ICH_RESETREGS);
542 static snd_pcm_uframes_t snd_intel8x0m_pcm_pointer(struct snd_pcm_substream *substream)
544 struct intel8x0m *chip = snd_pcm_substream_chip(substream);
545 struct ichdev *ichdev = get_ichdev(substream);
548 ptr1 = igetword(chip, ichdev->reg_offset + ichdev->roff_picb) << chip->pcm_pos_shift;
550 ptr = ichdev->fragsize1 - ptr1;
553 ptr += ichdev->position;
554 if (ptr >= ichdev->size)
556 return bytes_to_frames(substream->runtime, ptr);
559 static int snd_intel8x0m_pcm_prepare(struct snd_pcm_substream *substream)
561 struct intel8x0m *chip = snd_pcm_substream_chip(substream);
562 struct snd_pcm_runtime *runtime = substream->runtime;
563 struct ichdev *ichdev = get_ichdev(substream);
565 ichdev->physbuf = runtime->dma_addr;
566 ichdev->size = snd_pcm_lib_buffer_bytes(substream);
567 ichdev->fragsize = snd_pcm_lib_period_bytes(substream);
568 snd_ac97_write(ichdev->ac97, AC97_LINE1_RATE, runtime->rate);
569 snd_ac97_write(ichdev->ac97, AC97_LINE1_LEVEL, 0);
570 snd_intel8x0m_setup_periods(chip, ichdev);
574 static const struct snd_pcm_hardware snd_intel8x0m_stream =
576 .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
577 SNDRV_PCM_INFO_BLOCK_TRANSFER |
578 SNDRV_PCM_INFO_MMAP_VALID |
579 SNDRV_PCM_INFO_PAUSE |
580 SNDRV_PCM_INFO_RESUME),
581 .formats = SNDRV_PCM_FMTBIT_S16_LE,
582 .rates = SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_KNOT,
587 .buffer_bytes_max = 64 * 1024,
588 .period_bytes_min = 32,
589 .period_bytes_max = 64 * 1024,
596 static int snd_intel8x0m_pcm_open(struct snd_pcm_substream *substream, struct ichdev *ichdev)
598 static const unsigned int rates[] = { 8000, 9600, 12000, 16000 };
599 static const struct snd_pcm_hw_constraint_list hw_constraints_rates = {
600 .count = ARRAY_SIZE(rates),
604 struct snd_pcm_runtime *runtime = substream->runtime;
607 ichdev->substream = substream;
608 runtime->hw = snd_intel8x0m_stream;
609 err = snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
610 &hw_constraints_rates);
613 runtime->private_data = ichdev;
617 static int snd_intel8x0m_playback_open(struct snd_pcm_substream *substream)
619 struct intel8x0m *chip = snd_pcm_substream_chip(substream);
621 return snd_intel8x0m_pcm_open(substream, &chip->ichd[ICHD_MDMOUT]);
624 static int snd_intel8x0m_playback_close(struct snd_pcm_substream *substream)
626 struct intel8x0m *chip = snd_pcm_substream_chip(substream);
628 chip->ichd[ICHD_MDMOUT].substream = NULL;
632 static int snd_intel8x0m_capture_open(struct snd_pcm_substream *substream)
634 struct intel8x0m *chip = snd_pcm_substream_chip(substream);
636 return snd_intel8x0m_pcm_open(substream, &chip->ichd[ICHD_MDMIN]);
639 static int snd_intel8x0m_capture_close(struct snd_pcm_substream *substream)
641 struct intel8x0m *chip = snd_pcm_substream_chip(substream);
643 chip->ichd[ICHD_MDMIN].substream = NULL;
648 static const struct snd_pcm_ops snd_intel8x0m_playback_ops = {
649 .open = snd_intel8x0m_playback_open,
650 .close = snd_intel8x0m_playback_close,
651 .prepare = snd_intel8x0m_pcm_prepare,
652 .trigger = snd_intel8x0m_pcm_trigger,
653 .pointer = snd_intel8x0m_pcm_pointer,
656 static const struct snd_pcm_ops snd_intel8x0m_capture_ops = {
657 .open = snd_intel8x0m_capture_open,
658 .close = snd_intel8x0m_capture_close,
659 .prepare = snd_intel8x0m_pcm_prepare,
660 .trigger = snd_intel8x0m_pcm_trigger,
661 .pointer = snd_intel8x0m_pcm_pointer,
665 struct ich_pcm_table {
667 const struct snd_pcm_ops *playback_ops;
668 const struct snd_pcm_ops *capture_ops;
669 size_t prealloc_size;
670 size_t prealloc_max_size;
674 static int snd_intel8x0m_pcm1(struct intel8x0m *chip, int device,
675 const struct ich_pcm_table *rec)
682 sprintf(name, "Intel ICH - %s", rec->suffix);
684 strcpy(name, "Intel ICH");
685 err = snd_pcm_new(chip->card, name, device,
686 rec->playback_ops ? 1 : 0,
687 rec->capture_ops ? 1 : 0, &pcm);
691 if (rec->playback_ops)
692 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, rec->playback_ops);
693 if (rec->capture_ops)
694 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, rec->capture_ops);
696 pcm->private_data = chip;
698 pcm->dev_class = SNDRV_PCM_CLASS_MODEM;
700 sprintf(pcm->name, "%s - %s", chip->card->shortname, rec->suffix);
702 strcpy(pcm->name, chip->card->shortname);
703 chip->pcm[device] = pcm;
705 snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV,
708 rec->prealloc_max_size);
713 static const struct ich_pcm_table intel_pcms[] = {
716 .playback_ops = &snd_intel8x0m_playback_ops,
717 .capture_ops = &snd_intel8x0m_capture_ops,
718 .prealloc_size = 32 * 1024,
719 .prealloc_max_size = 64 * 1024,
723 static int snd_intel8x0m_pcm(struct intel8x0m *chip)
725 int i, tblsize, device, err;
726 const struct ich_pcm_table *tbl, *rec;
732 switch (chip->device_type) {
735 tblsize = ARRAY_SIZE(nforce_pcms);
739 tblsize = ARRAY_SIZE(ali_pcms);
748 for (i = 0; i < tblsize; i++) {
750 if (i > 0 && rec->ac97_idx) {
751 /* activate PCM only when associated AC'97 codec */
752 if (! chip->ichd[rec->ac97_idx].ac97)
755 err = snd_intel8x0m_pcm1(chip, device, rec);
761 chip->pcm_devs = device;
770 static void snd_intel8x0m_mixer_free_ac97_bus(struct snd_ac97_bus *bus)
772 struct intel8x0m *chip = bus->private_data;
773 chip->ac97_bus = NULL;
776 static void snd_intel8x0m_mixer_free_ac97(struct snd_ac97 *ac97)
778 struct intel8x0m *chip = ac97->private_data;
783 static int snd_intel8x0m_mixer(struct intel8x0m *chip, int ac97_clock)
785 struct snd_ac97_bus *pbus;
786 struct snd_ac97_template ac97;
787 struct snd_ac97 *x97;
789 unsigned int glob_sta = 0;
790 static const struct snd_ac97_bus_ops ops = {
791 .write = snd_intel8x0m_codec_write,
792 .read = snd_intel8x0m_codec_read,
795 chip->in_ac97_init = 1;
797 memset(&ac97, 0, sizeof(ac97));
798 ac97.private_data = chip;
799 ac97.private_free = snd_intel8x0m_mixer_free_ac97;
800 ac97.scaps = AC97_SCAP_SKIP_AUDIO | AC97_SCAP_POWER_SAVE;
802 glob_sta = igetdword(chip, ICHREG(GLOB_STA));
804 err = snd_ac97_bus(chip->card, 0, &ops, chip, &pbus);
807 pbus->private_free = snd_intel8x0m_mixer_free_ac97_bus;
808 if (ac97_clock >= 8000 && ac97_clock <= 48000)
809 pbus->clock = ac97_clock;
810 chip->ac97_bus = pbus;
812 ac97.pci = chip->pci;
813 ac97.num = glob_sta & ICH_SCR ? 1 : 0;
814 err = snd_ac97_mixer(pbus, &ac97, &x97);
816 dev_err(chip->card->dev,
817 "Unable to initialize codec #%d\n", ac97.num);
823 if(ac97_is_modem(x97) && !chip->ichd[ICHD_MDMIN].ac97) {
824 chip->ichd[ICHD_MDMIN].ac97 = x97;
825 chip->ichd[ICHD_MDMOUT].ac97 = x97;
828 chip->in_ac97_init = 0;
832 /* clear the cold-reset bit for the next chance */
833 if (chip->device_type != DEVICE_ALI)
834 iputdword(chip, ICHREG(GLOB_CNT),
835 igetdword(chip, ICHREG(GLOB_CNT)) & ~ICH_AC97COLD);
844 static int snd_intel8x0m_ich_chip_init(struct intel8x0m *chip, int probing)
846 unsigned long end_time;
847 unsigned int cnt, status, nstatus;
849 /* put logic to right state */
850 /* first clear status bits */
851 status = ICH_RCS | ICH_MIINT | ICH_MOINT;
852 cnt = igetdword(chip, ICHREG(GLOB_STA));
853 iputdword(chip, ICHREG(GLOB_STA), cnt & status);
855 /* ACLink on, 2 channels */
856 cnt = igetdword(chip, ICHREG(GLOB_CNT));
857 cnt &= ~(ICH_ACLINK);
858 /* finish cold or do warm reset */
859 cnt |= (cnt & ICH_AC97COLD) == 0 ? ICH_AC97COLD : ICH_AC97WARM;
860 iputdword(chip, ICHREG(GLOB_CNT), cnt);
861 usleep_range(500, 1000); /* give warm reset some time */
862 end_time = jiffies + HZ / 4;
864 if ((igetdword(chip, ICHREG(GLOB_CNT)) & ICH_AC97WARM) == 0)
866 schedule_timeout_uninterruptible(1);
867 } while (time_after_eq(end_time, jiffies));
868 dev_err(chip->card->dev, "AC'97 warm reset still in progress? [0x%x]\n",
869 igetdword(chip, ICHREG(GLOB_CNT)));
874 /* wait for any codec ready status.
875 * Once it becomes ready it should remain ready
876 * as long as we do not disable the ac97 link.
878 end_time = jiffies + HZ;
880 status = igetdword(chip, ICHREG(GLOB_STA)) &
881 (ICH_PCR | ICH_SCR | ICH_TCR);
884 schedule_timeout_uninterruptible(1);
885 } while (time_after_eq(end_time, jiffies));
887 /* no codec is found */
888 dev_err(chip->card->dev,
889 "codec_ready: codec is not ready [0x%x]\n",
890 igetdword(chip, ICHREG(GLOB_STA)));
894 /* up to two codecs (modem cannot be tertiary with ICH4) */
895 nstatus = ICH_PCR | ICH_SCR;
897 /* wait for other codecs ready status. */
898 end_time = jiffies + HZ / 4;
899 while (status != nstatus && time_after_eq(end_time, jiffies)) {
900 schedule_timeout_uninterruptible(1);
901 status |= igetdword(chip, ICHREG(GLOB_STA)) & nstatus;
908 status |= get_ich_codec_bit(chip, chip->ac97->num);
909 /* wait until all the probed codecs are ready */
910 end_time = jiffies + HZ;
912 nstatus = igetdword(chip, ICHREG(GLOB_STA)) &
913 (ICH_PCR | ICH_SCR | ICH_TCR);
914 if (status == nstatus)
916 schedule_timeout_uninterruptible(1);
917 } while (time_after_eq(end_time, jiffies));
920 if (chip->device_type == DEVICE_SIS) {
921 /* unmute the output on SIS7012 */
922 iputword(chip, 0x4c, igetword(chip, 0x4c) | 1);
928 static int snd_intel8x0m_chip_init(struct intel8x0m *chip, int probing)
933 err = snd_intel8x0m_ich_chip_init(chip, probing);
936 iagetword(chip, 0); /* clear semaphore flag */
938 /* disable interrupts */
939 for (i = 0; i < chip->bdbars_count; i++)
940 iputbyte(chip, ICH_REG_OFF_CR + chip->ichd[i].reg_offset, 0x00);
942 for (i = 0; i < chip->bdbars_count; i++)
943 iputbyte(chip, ICH_REG_OFF_CR + chip->ichd[i].reg_offset, ICH_RESETREGS);
944 /* initialize Buffer Descriptor Lists */
945 for (i = 0; i < chip->bdbars_count; i++)
946 iputdword(chip, ICH_REG_OFF_BDBAR + chip->ichd[i].reg_offset, chip->ichd[i].bdbar_addr);
950 static void snd_intel8x0m_free(struct snd_card *card)
952 struct intel8x0m *chip = card->private_data;
957 /* disable interrupts */
958 for (i = 0; i < chip->bdbars_count; i++)
959 iputbyte(chip, ICH_REG_OFF_CR + chip->ichd[i].reg_offset, 0x00);
961 for (i = 0; i < chip->bdbars_count; i++)
962 iputbyte(chip, ICH_REG_OFF_CR + chip->ichd[i].reg_offset, ICH_RESETREGS);
965 free_irq(chip->irq, chip);
968 #ifdef CONFIG_PM_SLEEP
972 static int intel8x0m_suspend(struct device *dev)
974 struct snd_card *card = dev_get_drvdata(dev);
975 struct intel8x0m *chip = card->private_data;
977 snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
978 snd_ac97_suspend(chip->ac97);
979 if (chip->irq >= 0) {
980 free_irq(chip->irq, chip);
987 static int intel8x0m_resume(struct device *dev)
989 struct pci_dev *pci = to_pci_dev(dev);
990 struct snd_card *card = dev_get_drvdata(dev);
991 struct intel8x0m *chip = card->private_data;
993 if (request_irq(pci->irq, snd_intel8x0m_interrupt,
994 IRQF_SHARED, KBUILD_MODNAME, chip)) {
995 dev_err(dev, "unable to grab IRQ %d, disabling device\n",
997 snd_card_disconnect(card);
1000 chip->irq = pci->irq;
1001 card->sync_irq = chip->irq;
1002 snd_intel8x0m_chip_init(chip, 0);
1003 snd_ac97_resume(chip->ac97);
1005 snd_power_change_state(card, SNDRV_CTL_POWER_D0);
1009 static SIMPLE_DEV_PM_OPS(intel8x0m_pm, intel8x0m_suspend, intel8x0m_resume);
1010 #define INTEL8X0M_PM_OPS &intel8x0m_pm
1012 #define INTEL8X0M_PM_OPS NULL
1013 #endif /* CONFIG_PM_SLEEP */
1015 static void snd_intel8x0m_proc_read(struct snd_info_entry * entry,
1016 struct snd_info_buffer *buffer)
1018 struct intel8x0m *chip = entry->private_data;
1021 snd_iprintf(buffer, "Intel8x0m\n\n");
1022 if (chip->device_type == DEVICE_ALI)
1024 tmp = igetdword(chip, ICHREG(GLOB_STA));
1025 snd_iprintf(buffer, "Global control : 0x%08x\n",
1026 igetdword(chip, ICHREG(GLOB_CNT)));
1027 snd_iprintf(buffer, "Global status : 0x%08x\n", tmp);
1028 snd_iprintf(buffer, "AC'97 codecs ready :%s%s%s%s\n",
1029 tmp & ICH_PCR ? " primary" : "",
1030 tmp & ICH_SCR ? " secondary" : "",
1031 tmp & ICH_TCR ? " tertiary" : "",
1032 (tmp & (ICH_PCR | ICH_SCR | ICH_TCR)) == 0 ? " none" : "");
1035 static void snd_intel8x0m_proc_init(struct intel8x0m *chip)
1037 snd_card_ro_proc_new(chip->card, "intel8x0m", chip,
1038 snd_intel8x0m_proc_read);
1041 struct ich_reg_info {
1042 unsigned int int_sta_mask;
1043 unsigned int offset;
1046 static int snd_intel8x0m_init(struct snd_card *card,
1047 struct pci_dev *pci,
1048 unsigned long device_type)
1050 struct intel8x0m *chip = card->private_data;
1053 unsigned int int_sta_masks;
1054 struct ichdev *ichdev;
1055 static const struct ich_reg_info intel_regs[2] = {
1057 { ICH_MOINT, 0x10 },
1059 const struct ich_reg_info *tbl;
1061 err = pcim_enable_device(pci);
1065 spin_lock_init(&chip->reg_lock);
1066 chip->device_type = device_type;
1071 err = pci_request_regions(pci, card->shortname);
1075 if (device_type == DEVICE_ALI) {
1076 /* ALI5455 has no ac97 region */
1077 chip->bmaddr = pcim_iomap(pci, 0, 0);
1079 if (pci_resource_flags(pci, 2) & IORESOURCE_MEM) /* ICH4 and Nforce */
1080 chip->addr = pcim_iomap(pci, 2, 0);
1082 chip->addr = pcim_iomap(pci, 0, 0);
1083 if (pci_resource_flags(pci, 3) & IORESOURCE_MEM) /* ICH4 */
1084 chip->bmaddr = pcim_iomap(pci, 3, 0);
1086 chip->bmaddr = pcim_iomap(pci, 1, 0);
1089 /* initialize offsets */
1090 chip->bdbars_count = 2;
1093 for (i = 0; i < chip->bdbars_count; i++) {
1094 ichdev = &chip->ichd[i];
1096 ichdev->reg_offset = tbl[i].offset;
1097 ichdev->int_sta_mask = tbl[i].int_sta_mask;
1098 if (device_type == DEVICE_SIS) {
1099 /* SiS 7013 swaps the registers */
1100 ichdev->roff_sr = ICH_REG_OFF_PICB;
1101 ichdev->roff_picb = ICH_REG_OFF_SR;
1103 ichdev->roff_sr = ICH_REG_OFF_SR;
1104 ichdev->roff_picb = ICH_REG_OFF_PICB;
1106 if (device_type == DEVICE_ALI)
1107 ichdev->ali_slot = (ichdev->reg_offset - 0x40) / 0x10;
1109 /* SIS7013 handles the pcm data in bytes, others are in words */
1110 chip->pcm_pos_shift = (device_type == DEVICE_SIS) ? 0 : 1;
1112 /* allocate buffer descriptor lists */
1113 /* the start of each lists must be aligned to 8 bytes */
1114 chip->bdbars = snd_devm_alloc_pages(&pci->dev, SNDRV_DMA_TYPE_DEV,
1115 chip->bdbars_count * sizeof(u32) *
1120 /* tables must be aligned to 8 bytes here, but the kernel pages
1121 are much bigger, so we don't care (on i386) */
1123 for (i = 0; i < chip->bdbars_count; i++) {
1124 ichdev = &chip->ichd[i];
1125 ichdev->bdbar = ((__le32 *)chip->bdbars->area) + (i * ICH_MAX_FRAGS * 2);
1126 ichdev->bdbar_addr = chip->bdbars->addr + (i * sizeof(u32) * ICH_MAX_FRAGS * 2);
1127 int_sta_masks |= ichdev->int_sta_mask;
1129 chip->int_sta_reg = ICH_REG_GLOB_STA;
1130 chip->int_sta_mask = int_sta_masks;
1132 pci_set_master(pci);
1134 err = snd_intel8x0m_chip_init(chip, 1);
1138 /* NOTE: we don't use devm version here since it's released /
1139 * re-acquired in PM callbacks.
1140 * It's released explicitly in snd_intel8x0m_free(), too.
1142 if (request_irq(pci->irq, snd_intel8x0m_interrupt, IRQF_SHARED,
1143 KBUILD_MODNAME, chip)) {
1144 dev_err(card->dev, "unable to grab IRQ %d\n", pci->irq);
1147 chip->irq = pci->irq;
1148 card->sync_irq = chip->irq;
1150 card->private_free = snd_intel8x0m_free;
1155 static struct shortname_table {
1159 { PCI_DEVICE_ID_INTEL_82801AA_6, "Intel 82801AA-ICH" },
1160 { PCI_DEVICE_ID_INTEL_82801AB_6, "Intel 82901AB-ICH0" },
1161 { PCI_DEVICE_ID_INTEL_82801BA_6, "Intel 82801BA-ICH2" },
1162 { PCI_DEVICE_ID_INTEL_440MX_6, "Intel 440MX" },
1163 { PCI_DEVICE_ID_INTEL_82801CA_6, "Intel 82801CA-ICH3" },
1164 { PCI_DEVICE_ID_INTEL_82801DB_6, "Intel 82801DB-ICH4" },
1165 { PCI_DEVICE_ID_INTEL_82801EB_6, "Intel ICH5" },
1166 { PCI_DEVICE_ID_INTEL_ICH6_17, "Intel ICH6" },
1167 { PCI_DEVICE_ID_INTEL_ICH7_19, "Intel ICH7" },
1168 { 0x7446, "AMD AMD768" },
1169 { PCI_DEVICE_ID_SI_7013, "SiS SI7013" },
1170 { PCI_DEVICE_ID_NVIDIA_MCP1_MODEM, "NVidia nForce" },
1171 { PCI_DEVICE_ID_NVIDIA_MCP2_MODEM, "NVidia nForce2" },
1172 { PCI_DEVICE_ID_NVIDIA_MCP2S_MODEM, "NVidia nForce2s" },
1173 { PCI_DEVICE_ID_NVIDIA_MCP3_MODEM, "NVidia nForce3" },
1174 { 0x746e, "AMD AMD8111" },
1176 { 0x5455, "ALi M5455" },
1181 static int __snd_intel8x0m_probe(struct pci_dev *pci,
1182 const struct pci_device_id *pci_id)
1184 struct snd_card *card;
1185 struct intel8x0m *chip;
1187 struct shortname_table *name;
1189 err = snd_devm_card_new(&pci->dev, index, id, THIS_MODULE,
1190 sizeof(*chip), &card);
1193 chip = card->private_data;
1195 strcpy(card->driver, "ICH-MODEM");
1196 strcpy(card->shortname, "Intel ICH");
1197 for (name = shortnames; name->id; name++) {
1198 if (pci->device == name->id) {
1199 strcpy(card->shortname, name->s);
1203 strcat(card->shortname," Modem");
1205 err = snd_intel8x0m_init(card, pci, pci_id->driver_data);
1209 err = snd_intel8x0m_mixer(chip, ac97_clock);
1212 err = snd_intel8x0m_pcm(chip);
1216 snd_intel8x0m_proc_init(chip);
1218 sprintf(card->longname, "%s at irq %i",
1219 card->shortname, chip->irq);
1221 err = snd_card_register(card);
1224 pci_set_drvdata(pci, card);
1228 static int snd_intel8x0m_probe(struct pci_dev *pci,
1229 const struct pci_device_id *pci_id)
1231 return snd_card_free_on_error(&pci->dev, __snd_intel8x0m_probe(pci, pci_id));
1234 static struct pci_driver intel8x0m_driver = {
1235 .name = KBUILD_MODNAME,
1236 .id_table = snd_intel8x0m_ids,
1237 .probe = snd_intel8x0m_probe,
1239 .pm = INTEL8X0M_PM_OPS,
1243 module_pci_driver(intel8x0m_driver);