2 * ALSA modem driver for Intel ICH (i8x0) chipsets
4 * Copyright (c) 2000 Jaroslav Kysela <perex@perex.cz>
6 * This is modified (by Sasha Khapyorsky <sashak@alsa-project.org>) version
7 * of ALSA ICH sound driver intel8x0.c .
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.
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.
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
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/moduleparam.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>
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},"
53 "{NVidia,NForce Modem},"
54 "{NVidia,NForce2 Modem},"
55 "{NVidia,NForce2s Modem},"
56 "{NVidia,NForce3 Modem},"
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;
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).");
70 /* just for backward compatibility */
72 module_param(enable, bool, 0444);
77 enum { DEVICE_INTEL, DEVICE_SIS, DEVICE_ALI, DEVICE_NFORCE };
79 #define ICHREG(x) ICH_REG_##x
81 #define DEFINE_REGSET(name,base) \
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 */ \
92 /* busmaster blocks */
93 DEFINE_REGSET(OFF, 0); /* offset */
95 /* values for each busmaster block */
98 #define ICH_REG_LVI_MASK 0x1f
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 */
108 #define ICH_REG_PIV_MASK 0x1f /* mask */
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 */
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 */
156 #define ICH_MAX_FRAGS 32 /* max hw frags */
163 enum { ICHD_MDMIN, ICHD_MDMOUT, ICHD_MDMLAST = ICHD_MDMOUT };
164 enum { ALID_MDMIN, ALID_MDMOUT, ALID_MDMLAST = ALID_MDMOUT };
166 #define get_ichdev(substream) (substream->runtime->private_data)
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) */
176 unsigned int fragsize;
177 unsigned int fragsize1;
178 unsigned int position;
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;
194 unsigned int device_type;
199 void __iomem *bmaddr;
202 struct snd_card *card;
205 struct snd_pcm *pcm[2];
206 struct ichdev ichd[2];
208 unsigned int in_ac97_init: 1;
210 struct snd_ac97_bus *ac97_bus;
211 struct snd_ac97 *ac97;
215 struct snd_dma_buffer bdbars;
217 u32 int_sta_reg; /* interrupt status register */
218 u32 int_sta_mask; /* interrupt status mask */
219 unsigned int pcm_pos_shift;
222 static struct pci_device_id snd_intel8x0m_ids[] = {
223 { 0x8086, 0x2416, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL }, /* 82801AA */
224 { 0x8086, 0x2426, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL }, /* 82901AB */
225 { 0x8086, 0x2446, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL }, /* 82801BA */
226 { 0x8086, 0x2486, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL }, /* ICH3 */
227 { 0x8086, 0x24c6, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL }, /* ICH4 */
228 { 0x8086, 0x24d6, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL }, /* ICH5 */
229 { 0x8086, 0x266d, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL }, /* ICH6 */
230 { 0x8086, 0x27dd, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL }, /* ICH7 */
231 { 0x8086, 0x7196, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL }, /* 440MX */
232 { 0x1022, 0x7446, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL }, /* AMD768 */
233 { 0x1039, 0x7013, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_SIS }, /* SI7013 */
234 { 0x10de, 0x01c1, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_NFORCE }, /* NFORCE */
235 { 0x10de, 0x0069, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_NFORCE }, /* NFORCE2 */
236 { 0x10de, 0x0089, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_NFORCE }, /* NFORCE2s */
237 { 0x10de, 0x00d9, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_NFORCE }, /* NFORCE3 */
239 { 0x1022, 0x746d, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL }, /* AMD8111 */
240 { 0x10b9, 0x5455, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_ALI }, /* Ali5455 */
245 MODULE_DEVICE_TABLE(pci, snd_intel8x0m_ids);
248 * Lowlevel I/O - busmaster
251 static inline u8 igetbyte(struct intel8x0m *chip, u32 offset)
253 return ioread8(chip->bmaddr + offset);
256 static inline u16 igetword(struct intel8x0m *chip, u32 offset)
258 return ioread16(chip->bmaddr + offset);
261 static inline u32 igetdword(struct intel8x0m *chip, u32 offset)
263 return ioread32(chip->bmaddr + offset);
266 static inline void iputbyte(struct intel8x0m *chip, u32 offset, u8 val)
268 iowrite8(val, chip->bmaddr + offset);
271 static inline void iputword(struct intel8x0m *chip, u32 offset, u16 val)
273 iowrite16(val, chip->bmaddr + offset);
276 static inline void iputdword(struct intel8x0m *chip, u32 offset, u32 val)
278 iowrite32(val, chip->bmaddr + offset);
282 * Lowlevel I/O - AC'97 registers
285 static inline u16 iagetword(struct intel8x0m *chip, u32 offset)
287 return ioread16(chip->addr + offset);
290 static inline void iaputword(struct intel8x0m *chip, u32 offset, u16 val)
292 iowrite16(val, chip->addr + offset);
300 * access to AC97 codec via normal i/o (for ICH and SIS7013)
303 /* return the GLOB_STA bit for the corresponding codec */
304 static unsigned int get_ich_codec_bit(struct intel8x0m *chip, unsigned int codec)
306 static unsigned int codec_bit[3] = {
307 ICH_PCR, ICH_SCR, ICH_TCR
309 if (snd_BUG_ON(codec >= 3))
311 return codec_bit[codec];
314 static int snd_intel8x0m_codec_semaphore(struct intel8x0m *chip, unsigned int codec)
320 codec = get_ich_codec_bit(chip, codec);
323 if ((igetdword(chip, ICHREG(GLOB_STA)) & codec) == 0)
326 /* Anyone holding a semaphore for 1 msec should be shot... */
329 if (!(igetbyte(chip, ICHREG(ACC_SEMA)) & ICH_CAS))
334 /* access to some forbidden (non existant) 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 */
344 static void snd_intel8x0_codec_write(struct snd_ac97 *ac97,
348 struct intel8x0m *chip = ac97->private_data;
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);
354 iaputword(chip, reg + ac97->num * 0x80, val);
357 static unsigned short snd_intel8x0_codec_read(struct snd_ac97 *ac97,
360 struct intel8x0m *chip = ac97->private_data;
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);
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);
379 if (reg == AC97_GPIO_STATUS)
380 iagetword(chip, 0); /* clear semaphore */
388 static void snd_intel8x0_setup_periods(struct intel8x0m *chip, struct ichdev *ichdev)
391 u32 *bdbar = ichdev->bdbar;
392 unsigned long port = ichdev->reg_offset;
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);
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);
415 printk(KERN_DEBUG "bdbar[%i] = 0x%x [0x%x]\n",
416 idx + 0, bdbar[idx + 0], bdbar[idx + 1]);
419 ichdev->frags = ichdev->size / ichdev->fragsize;
421 iputbyte(chip, port + ICH_REG_OFF_LVI, ichdev->lvi = ICH_REG_LVI_MASK);
423 iputbyte(chip, port + ICH_REG_OFF_CIV, 0);
424 ichdev->lvi_frag = ICH_REG_LVI_MASK % ichdev->frags;
425 ichdev->position = 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,
432 /* clear interrupts */
433 iputbyte(chip, port + ichdev->roff_sr, ICH_FIFOE | ICH_BCIS | ICH_LVBCI);
440 static inline void snd_intel8x0_update(struct intel8x0m *chip, struct ichdev *ichdev)
442 unsigned long port = ichdev->reg_offset;
446 civ = igetbyte(chip, port + ICH_REG_OFF_CIV);
447 if (civ == ichdev->civ) {
448 // snd_printd("civ same %d\n", civ);
451 ichdev->civ &= ICH_REG_LVI_MASK;
453 step = civ - ichdev->civ;
455 step += ICH_REG_LVI_MASK + 1;
457 // snd_printd("step = %d, %d -> %d\n", step, ichdev->civ, civ);
461 ichdev->position += step * ichdev->fragsize1;
462 ichdev->position %= ichdev->size;
464 ichdev->lvi &= ICH_REG_LVI_MASK;
465 iputbyte(chip, port + ICH_REG_OFF_LVI, ichdev->lvi);
466 for (i = 0; i < step; i++) {
468 ichdev->lvi_frag %= ichdev->frags;
469 ichdev->bdbar[ichdev->lvi * 2] = cpu_to_le32(ichdev->physbuf +
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));
479 if (--ichdev->ack == 0) {
480 ichdev->ack = ichdev->ack_reload;
484 if (ack && ichdev->substream) {
485 spin_unlock(&chip->reg_lock);
486 snd_pcm_period_elapsed(ichdev->substream);
487 spin_lock(&chip->reg_lock);
489 iputbyte(chip, port + ichdev->roff_sr, ICH_FIFOE | ICH_BCIS | ICH_LVBCI);
492 static irqreturn_t snd_intel8x0_interrupt(int irq, void *dev_id)
494 struct intel8x0m *chip = dev_id;
495 struct ichdev *ichdev;
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);
505 if ((status & chip->int_sta_mask) == 0) {
507 iputdword(chip, chip->int_sta_reg, status);
508 spin_unlock(&chip->reg_lock);
512 for (i = 0; i < chip->bdbars_count; i++) {
513 ichdev = &chip->ichd[i];
514 if (status & ichdev->int_sta_mask)
515 snd_intel8x0_update(chip, ichdev);
519 iputdword(chip, chip->int_sta_reg, status & chip->int_sta_mask);
520 spin_unlock(&chip->reg_lock);
529 static int snd_intel8x0_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
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;
537 case SNDRV_PCM_TRIGGER_START:
538 case SNDRV_PCM_TRIGGER_RESUME:
539 val = ICH_IOCE | ICH_STARTBM;
541 case SNDRV_PCM_TRIGGER_STOP:
542 case SNDRV_PCM_TRIGGER_SUSPEND:
545 case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
548 case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
549 val = ICH_IOCE | ICH_STARTBM;
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);
564 static int snd_intel8x0_hw_params(struct snd_pcm_substream *substream,
565 struct snd_pcm_hw_params *hw_params)
567 return snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
570 static int snd_intel8x0_hw_free(struct snd_pcm_substream *substream)
572 return snd_pcm_lib_free_pages(substream);
575 static snd_pcm_uframes_t snd_intel8x0_pcm_pointer(struct snd_pcm_substream *substream)
577 struct intel8x0m *chip = snd_pcm_substream_chip(substream);
578 struct ichdev *ichdev = get_ichdev(substream);
581 ptr1 = igetword(chip, ichdev->reg_offset + ichdev->roff_picb) << chip->pcm_pos_shift;
583 ptr = ichdev->fragsize1 - ptr1;
586 ptr += ichdev->position;
587 if (ptr >= ichdev->size)
589 return bytes_to_frames(substream->runtime, ptr);
592 static int snd_intel8x0m_pcm_prepare(struct snd_pcm_substream *substream)
594 struct intel8x0m *chip = snd_pcm_substream_chip(substream);
595 struct snd_pcm_runtime *runtime = substream->runtime;
596 struct ichdev *ichdev = get_ichdev(substream);
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_intel8x0_setup_periods(chip, ichdev);
607 static struct snd_pcm_hardware snd_intel8x0m_stream =
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,
620 .buffer_bytes_max = 64 * 1024,
621 .period_bytes_min = 32,
622 .period_bytes_max = 64 * 1024,
629 static int snd_intel8x0m_pcm_open(struct snd_pcm_substream *substream, struct ichdev *ichdev)
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),
637 struct snd_pcm_runtime *runtime = substream->runtime;
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);
646 runtime->private_data = ichdev;
650 static int snd_intel8x0m_playback_open(struct snd_pcm_substream *substream)
652 struct intel8x0m *chip = snd_pcm_substream_chip(substream);
654 return snd_intel8x0m_pcm_open(substream, &chip->ichd[ICHD_MDMOUT]);
657 static int snd_intel8x0m_playback_close(struct snd_pcm_substream *substream)
659 struct intel8x0m *chip = snd_pcm_substream_chip(substream);
661 chip->ichd[ICHD_MDMOUT].substream = NULL;
665 static int snd_intel8x0m_capture_open(struct snd_pcm_substream *substream)
667 struct intel8x0m *chip = snd_pcm_substream_chip(substream);
669 return snd_intel8x0m_pcm_open(substream, &chip->ichd[ICHD_MDMIN]);
672 static int snd_intel8x0m_capture_close(struct snd_pcm_substream *substream)
674 struct intel8x0m *chip = snd_pcm_substream_chip(substream);
676 chip->ichd[ICHD_MDMIN].substream = NULL;
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_intel8x0_hw_params,
686 .hw_free = snd_intel8x0_hw_free,
687 .prepare = snd_intel8x0m_pcm_prepare,
688 .trigger = snd_intel8x0_pcm_trigger,
689 .pointer = snd_intel8x0_pcm_pointer,
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_intel8x0_hw_params,
697 .hw_free = snd_intel8x0_hw_free,
698 .prepare = snd_intel8x0m_pcm_prepare,
699 .trigger = snd_intel8x0_pcm_trigger,
700 .pointer = snd_intel8x0_pcm_pointer,
704 struct ich_pcm_table {
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;
713 static int __devinit snd_intel8x0_pcm1(struct intel8x0m *chip, int device,
714 struct ich_pcm_table *rec)
721 sprintf(name, "Intel ICH - %s", rec->suffix);
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);
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);
735 pcm->private_data = chip;
737 pcm->dev_class = SNDRV_PCM_CLASS_MODEM;
739 sprintf(pcm->name, "%s - %s", chip->card->shortname, rec->suffix);
741 strcpy(pcm->name, chip->card->shortname);
742 chip->pcm[device] = pcm;
744 snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
745 snd_dma_pci_data(chip->pci),
747 rec->prealloc_max_size);
752 static struct ich_pcm_table intel_pcms[] __devinitdata = {
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,
762 static int __devinit snd_intel8x0_pcm(struct intel8x0m *chip)
764 int i, tblsize, device, err;
765 struct ich_pcm_table *tbl, *rec;
771 switch (chip->device_type) {
774 tblsize = ARRAY_SIZE(nforce_pcms);
778 tblsize = ARRAY_SIZE(ali_pcms);
787 for (i = 0; i < tblsize; 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)
794 err = snd_intel8x0_pcm1(chip, device, rec);
800 chip->pcm_devs = device;
809 static void snd_intel8x0_mixer_free_ac97_bus(struct snd_ac97_bus *bus)
811 struct intel8x0m *chip = bus->private_data;
812 chip->ac97_bus = NULL;
815 static void snd_intel8x0_mixer_free_ac97(struct snd_ac97 *ac97)
817 struct intel8x0m *chip = ac97->private_data;
822 static int __devinit snd_intel8x0_mixer(struct intel8x0m *chip, int ac97_clock)
824 struct snd_ac97_bus *pbus;
825 struct snd_ac97_template ac97;
826 struct snd_ac97 *x97;
828 unsigned int glob_sta = 0;
829 static struct snd_ac97_bus_ops ops = {
830 .write = snd_intel8x0_codec_write,
831 .read = snd_intel8x0_codec_read,
834 chip->in_ac97_init = 1;
836 memset(&ac97, 0, sizeof(ac97));
837 ac97.private_data = chip;
838 ac97.private_free = snd_intel8x0_mixer_free_ac97;
839 ac97.scaps = AC97_SCAP_SKIP_AUDIO | AC97_SCAP_POWER_SAVE;
841 glob_sta = igetdword(chip, ICHREG(GLOB_STA));
843 if ((err = snd_ac97_bus(chip->card, 0, &ops, chip, &pbus)) < 0)
845 pbus->private_free = snd_intel8x0_mixer_free_ac97_bus;
846 if (ac97_clock >= 8000 && ac97_clock <= 48000)
847 pbus->clock = ac97_clock;
848 chip->ac97_bus = pbus;
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);
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;
864 chip->in_ac97_init = 0;
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);
880 static int snd_intel8x0m_ich_chip_init(struct intel8x0m *chip, int probing)
882 unsigned long end_time;
883 unsigned int cnt, status, nstatus;
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);
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 end_time = (jiffies + (HZ / 4)) + 1;
899 if ((igetdword(chip, ICHREG(GLOB_CNT)) & ICH_AC97WARM) == 0)
901 schedule_timeout_uninterruptible(1);
902 } while (time_after_eq(end_time, jiffies));
903 snd_printk(KERN_ERR "AC'97 warm reset still in progress? [0x%x]\n",
904 igetdword(chip, ICHREG(GLOB_CNT)));
909 /* wait for any codec ready status.
910 * Once it becomes ready it should remain ready
911 * as long as we do not disable the ac97 link.
913 end_time = jiffies + HZ;
915 status = igetdword(chip, ICHREG(GLOB_STA)) &
916 (ICH_PCR | ICH_SCR | ICH_TCR);
919 schedule_timeout_uninterruptible(1);
920 } while (time_after_eq(end_time, jiffies));
922 /* no codec is found */
923 snd_printk(KERN_ERR "codec_ready: codec is not ready [0x%x]\n",
924 igetdword(chip, ICHREG(GLOB_STA)));
928 /* up to two codecs (modem cannot be tertiary with ICH4) */
929 nstatus = ICH_PCR | ICH_SCR;
931 /* wait for other codecs ready status. */
932 end_time = jiffies + HZ / 4;
933 while (status != nstatus && time_after_eq(end_time, jiffies)) {
934 schedule_timeout_uninterruptible(1);
935 status |= igetdword(chip, ICHREG(GLOB_STA)) & nstatus;
942 status |= get_ich_codec_bit(chip, chip->ac97->num);
943 /* wait until all the probed codecs are ready */
944 end_time = jiffies + HZ;
946 nstatus = igetdword(chip, ICHREG(GLOB_STA)) &
947 (ICH_PCR | ICH_SCR | ICH_TCR);
948 if (status == nstatus)
950 schedule_timeout_uninterruptible(1);
951 } while (time_after_eq(end_time, jiffies));
954 if (chip->device_type == DEVICE_SIS) {
955 /* unmute the output on SIS7012 */
956 iputword(chip, 0x4c, igetword(chip, 0x4c) | 1);
962 static int snd_intel8x0_chip_init(struct intel8x0m *chip, int probing)
967 if ((err = snd_intel8x0m_ich_chip_init(chip, probing)) < 0)
969 iagetword(chip, 0); /* clear semaphore flag */
971 /* disable interrupts */
972 for (i = 0; i < chip->bdbars_count; i++)
973 iputbyte(chip, ICH_REG_OFF_CR + chip->ichd[i].reg_offset, 0x00);
975 for (i = 0; i < chip->bdbars_count; i++)
976 iputbyte(chip, ICH_REG_OFF_CR + chip->ichd[i].reg_offset, ICH_RESETREGS);
977 /* initialize Buffer Descriptor Lists */
978 for (i = 0; i < chip->bdbars_count; i++)
979 iputdword(chip, ICH_REG_OFF_BDBAR + chip->ichd[i].reg_offset, chip->ichd[i].bdbar_addr);
983 static int snd_intel8x0_free(struct intel8x0m *chip)
989 /* disable interrupts */
990 for (i = 0; i < chip->bdbars_count; i++)
991 iputbyte(chip, ICH_REG_OFF_CR + chip->ichd[i].reg_offset, 0x00);
993 for (i = 0; i < chip->bdbars_count; i++)
994 iputbyte(chip, ICH_REG_OFF_CR + chip->ichd[i].reg_offset, ICH_RESETREGS);
997 free_irq(chip->irq, chip);
998 if (chip->bdbars.area)
999 snd_dma_free_pages(&chip->bdbars);
1001 pci_iounmap(chip->pci, chip->addr);
1003 pci_iounmap(chip->pci, chip->bmaddr);
1004 pci_release_regions(chip->pci);
1005 pci_disable_device(chip->pci);
1014 static int intel8x0m_suspend(struct pci_dev *pci, pm_message_t state)
1016 struct snd_card *card = pci_get_drvdata(pci);
1017 struct intel8x0m *chip = card->private_data;
1020 snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
1021 for (i = 0; i < chip->pcm_devs; i++)
1022 snd_pcm_suspend_all(chip->pcm[i]);
1023 snd_ac97_suspend(chip->ac97);
1024 if (chip->irq >= 0) {
1025 free_irq(chip->irq, chip);
1028 pci_disable_device(pci);
1029 pci_save_state(pci);
1030 pci_set_power_state(pci, pci_choose_state(pci, state));
1034 static int intel8x0m_resume(struct pci_dev *pci)
1036 struct snd_card *card = pci_get_drvdata(pci);
1037 struct intel8x0m *chip = card->private_data;
1039 pci_set_power_state(pci, PCI_D0);
1040 pci_restore_state(pci);
1041 if (pci_enable_device(pci) < 0) {
1042 printk(KERN_ERR "intel8x0m: pci_enable_device failed, "
1043 "disabling device\n");
1044 snd_card_disconnect(card);
1047 pci_set_master(pci);
1048 if (request_irq(pci->irq, snd_intel8x0_interrupt,
1049 IRQF_SHARED, card->shortname, chip)) {
1050 printk(KERN_ERR "intel8x0m: unable to grab IRQ %d, "
1051 "disabling device\n", pci->irq);
1052 snd_card_disconnect(card);
1055 chip->irq = pci->irq;
1056 snd_intel8x0_chip_init(chip, 0);
1057 snd_ac97_resume(chip->ac97);
1059 snd_power_change_state(card, SNDRV_CTL_POWER_D0);
1062 #endif /* CONFIG_PM */
1064 #ifdef CONFIG_PROC_FS
1065 static void snd_intel8x0m_proc_read(struct snd_info_entry * entry,
1066 struct snd_info_buffer *buffer)
1068 struct intel8x0m *chip = entry->private_data;
1071 snd_iprintf(buffer, "Intel8x0m\n\n");
1072 if (chip->device_type == DEVICE_ALI)
1074 tmp = igetdword(chip, ICHREG(GLOB_STA));
1075 snd_iprintf(buffer, "Global control : 0x%08x\n",
1076 igetdword(chip, ICHREG(GLOB_CNT)));
1077 snd_iprintf(buffer, "Global status : 0x%08x\n", tmp);
1078 snd_iprintf(buffer, "AC'97 codecs ready :%s%s%s%s\n",
1079 tmp & ICH_PCR ? " primary" : "",
1080 tmp & ICH_SCR ? " secondary" : "",
1081 tmp & ICH_TCR ? " tertiary" : "",
1082 (tmp & (ICH_PCR | ICH_SCR | ICH_TCR)) == 0 ? " none" : "");
1085 static void __devinit snd_intel8x0m_proc_init(struct intel8x0m * chip)
1087 struct snd_info_entry *entry;
1089 if (! snd_card_proc_new(chip->card, "intel8x0m", &entry))
1090 snd_info_set_text_ops(entry, chip, snd_intel8x0m_proc_read);
1092 #else /* !CONFIG_PROC_FS */
1093 #define snd_intel8x0m_proc_init(chip)
1094 #endif /* CONFIG_PROC_FS */
1097 static int snd_intel8x0_dev_free(struct snd_device *device)
1099 struct intel8x0m *chip = device->device_data;
1100 return snd_intel8x0_free(chip);
1103 struct ich_reg_info {
1104 unsigned int int_sta_mask;
1105 unsigned int offset;
1108 static int __devinit snd_intel8x0m_create(struct snd_card *card,
1109 struct pci_dev *pci,
1110 unsigned long device_type,
1111 struct intel8x0m ** r_intel8x0)
1113 struct intel8x0m *chip;
1116 unsigned int int_sta_masks;
1117 struct ichdev *ichdev;
1118 static struct snd_device_ops ops = {
1119 .dev_free = snd_intel8x0_dev_free,
1121 static struct ich_reg_info intel_regs[2] = {
1123 { ICH_MOINT, 0x10 },
1125 struct ich_reg_info *tbl;
1129 if ((err = pci_enable_device(pci)) < 0)
1132 chip = kzalloc(sizeof(*chip), GFP_KERNEL);
1134 pci_disable_device(pci);
1137 spin_lock_init(&chip->reg_lock);
1138 chip->device_type = device_type;
1143 if ((err = pci_request_regions(pci, card->shortname)) < 0) {
1145 pci_disable_device(pci);
1149 if (device_type == DEVICE_ALI) {
1150 /* ALI5455 has no ac97 region */
1151 chip->bmaddr = pci_iomap(pci, 0, 0);
1155 if (pci_resource_flags(pci, 2) & IORESOURCE_MEM) /* ICH4 and Nforce */
1156 chip->addr = pci_iomap(pci, 2, 0);
1158 chip->addr = pci_iomap(pci, 0, 0);
1160 snd_printk(KERN_ERR "AC'97 space ioremap problem\n");
1161 snd_intel8x0_free(chip);
1164 if (pci_resource_flags(pci, 3) & IORESOURCE_MEM) /* ICH4 */
1165 chip->bmaddr = pci_iomap(pci, 3, 0);
1167 chip->bmaddr = pci_iomap(pci, 1, 0);
1168 if (!chip->bmaddr) {
1169 snd_printk(KERN_ERR "Controller space ioremap problem\n");
1170 snd_intel8x0_free(chip);
1175 if (request_irq(pci->irq, snd_intel8x0_interrupt, IRQF_SHARED,
1176 card->shortname, chip)) {
1177 snd_printk(KERN_ERR "unable to grab IRQ %d\n", pci->irq);
1178 snd_intel8x0_free(chip);
1181 chip->irq = pci->irq;
1182 pci_set_master(pci);
1183 synchronize_irq(chip->irq);
1185 /* initialize offsets */
1186 chip->bdbars_count = 2;
1189 for (i = 0; i < chip->bdbars_count; i++) {
1190 ichdev = &chip->ichd[i];
1192 ichdev->reg_offset = tbl[i].offset;
1193 ichdev->int_sta_mask = tbl[i].int_sta_mask;
1194 if (device_type == DEVICE_SIS) {
1195 /* SiS 7013 swaps the registers */
1196 ichdev->roff_sr = ICH_REG_OFF_PICB;
1197 ichdev->roff_picb = ICH_REG_OFF_SR;
1199 ichdev->roff_sr = ICH_REG_OFF_SR;
1200 ichdev->roff_picb = ICH_REG_OFF_PICB;
1202 if (device_type == DEVICE_ALI)
1203 ichdev->ali_slot = (ichdev->reg_offset - 0x40) / 0x10;
1205 /* SIS7013 handles the pcm data in bytes, others are in words */
1206 chip->pcm_pos_shift = (device_type == DEVICE_SIS) ? 0 : 1;
1208 /* allocate buffer descriptor lists */
1209 /* the start of each lists must be aligned to 8 bytes */
1210 if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci),
1211 chip->bdbars_count * sizeof(u32) * ICH_MAX_FRAGS * 2,
1212 &chip->bdbars) < 0) {
1213 snd_intel8x0_free(chip);
1216 /* tables must be aligned to 8 bytes here, but the kernel pages
1217 are much bigger, so we don't care (on i386) */
1219 for (i = 0; i < chip->bdbars_count; i++) {
1220 ichdev = &chip->ichd[i];
1221 ichdev->bdbar = ((u32 *)chip->bdbars.area) + (i * ICH_MAX_FRAGS * 2);
1222 ichdev->bdbar_addr = chip->bdbars.addr + (i * sizeof(u32) * ICH_MAX_FRAGS * 2);
1223 int_sta_masks |= ichdev->int_sta_mask;
1225 chip->int_sta_reg = ICH_REG_GLOB_STA;
1226 chip->int_sta_mask = int_sta_masks;
1228 if ((err = snd_intel8x0_chip_init(chip, 1)) < 0) {
1229 snd_intel8x0_free(chip);
1233 if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
1234 snd_intel8x0_free(chip);
1238 snd_card_set_dev(card, &pci->dev);
1244 static struct shortname_table {
1247 } shortnames[] __devinitdata = {
1248 { PCI_DEVICE_ID_INTEL_82801AA_6, "Intel 82801AA-ICH" },
1249 { PCI_DEVICE_ID_INTEL_82801AB_6, "Intel 82901AB-ICH0" },
1250 { PCI_DEVICE_ID_INTEL_82801BA_6, "Intel 82801BA-ICH2" },
1251 { PCI_DEVICE_ID_INTEL_440MX_6, "Intel 440MX" },
1252 { PCI_DEVICE_ID_INTEL_82801CA_6, "Intel 82801CA-ICH3" },
1253 { PCI_DEVICE_ID_INTEL_82801DB_6, "Intel 82801DB-ICH4" },
1254 { PCI_DEVICE_ID_INTEL_82801EB_6, "Intel ICH5" },
1255 { PCI_DEVICE_ID_INTEL_ICH6_17, "Intel ICH6" },
1256 { PCI_DEVICE_ID_INTEL_ICH7_19, "Intel ICH7" },
1257 { 0x7446, "AMD AMD768" },
1258 { PCI_DEVICE_ID_SI_7013, "SiS SI7013" },
1259 { PCI_DEVICE_ID_NVIDIA_MCP1_MODEM, "NVidia nForce" },
1260 { PCI_DEVICE_ID_NVIDIA_MCP2_MODEM, "NVidia nForce2" },
1261 { PCI_DEVICE_ID_NVIDIA_MCP2S_MODEM, "NVidia nForce2s" },
1262 { PCI_DEVICE_ID_NVIDIA_MCP3_MODEM, "NVidia nForce3" },
1264 { 0x5455, "ALi M5455" },
1265 { 0x746d, "AMD AMD8111" },
1270 static int __devinit snd_intel8x0m_probe(struct pci_dev *pci,
1271 const struct pci_device_id *pci_id)
1273 struct snd_card *card;
1274 struct intel8x0m *chip;
1276 struct shortname_table *name;
1278 err = snd_card_create(index, id, THIS_MODULE, 0, &card);
1282 strcpy(card->driver, "ICH-MODEM");
1283 strcpy(card->shortname, "Intel ICH");
1284 for (name = shortnames; name->id; name++) {
1285 if (pci->device == name->id) {
1286 strcpy(card->shortname, name->s);
1290 strcat(card->shortname," Modem");
1292 if ((err = snd_intel8x0m_create(card, pci, pci_id->driver_data, &chip)) < 0) {
1293 snd_card_free(card);
1296 card->private_data = chip;
1298 if ((err = snd_intel8x0_mixer(chip, ac97_clock)) < 0) {
1299 snd_card_free(card);
1302 if ((err = snd_intel8x0_pcm(chip)) < 0) {
1303 snd_card_free(card);
1307 snd_intel8x0m_proc_init(chip);
1309 sprintf(card->longname, "%s at irq %i",
1310 card->shortname, chip->irq);
1312 if ((err = snd_card_register(card)) < 0) {
1313 snd_card_free(card);
1316 pci_set_drvdata(pci, card);
1320 static void __devexit snd_intel8x0m_remove(struct pci_dev *pci)
1322 snd_card_free(pci_get_drvdata(pci));
1323 pci_set_drvdata(pci, NULL);
1326 static struct pci_driver driver = {
1327 .name = "Intel ICH Modem",
1328 .id_table = snd_intel8x0m_ids,
1329 .probe = snd_intel8x0m_probe,
1330 .remove = __devexit_p(snd_intel8x0m_remove),
1332 .suspend = intel8x0m_suspend,
1333 .resume = intel8x0m_resume,
1338 static int __init alsa_card_intel8x0m_init(void)
1340 return pci_register_driver(&driver);
1343 static void __exit alsa_card_intel8x0m_exit(void)
1345 pci_unregister_driver(&driver);
1348 module_init(alsa_card_intel8x0m_init)
1349 module_exit(alsa_card_intel8x0m_exit)