3 * hda_intel.c - Implementation of primary alsa driver code base for Intel HD Audio.
5 * Copyright(c) 2004 Intel Corporation. All rights reserved.
7 * Copyright (c) 2004 Takashi Iwai <tiwai@suse.de>
8 * PeiSen Hou <pshou@realtek.com.tw>
10 * This program is free software; you can redistribute it and/or modify it
11 * under the terms of the GNU General Public License as published by the Free
12 * Software Foundation; either version 2 of the License, or (at your option)
15 * This program is distributed in the hope that it will be useful, but WITHOUT
16 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
17 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
20 * You should have received a copy of the GNU General Public License along with
21 * this program; if not, write to the Free Software Foundation, Inc., 59
22 * Temple Place - Suite 330, Boston, MA 02111-1307, USA.
26 * Matt Jared matt.jared@intel.com
27 * Andy Kopp andy.kopp@intel.com
28 * Dan Kogan dan.d.kogan@intel.com
32 * 2004.12.01 Major rewrite by tiwai, merged the work of pshou
36 #include <sound/driver.h>
38 #include <linux/delay.h>
39 #include <linux/interrupt.h>
40 #include <linux/kernel.h>
41 #include <linux/module.h>
42 #include <linux/moduleparam.h>
43 #include <linux/init.h>
44 #include <linux/slab.h>
45 #include <linux/pci.h>
46 #include <linux/mutex.h>
47 #include <sound/core.h>
48 #include <sound/initval.h>
49 #include "hda_codec.h"
52 static int index = SNDRV_DEFAULT_IDX1;
53 static char *id = SNDRV_DEFAULT_STR1;
55 static int position_fix;
56 static int probe_mask = -1;
57 static int single_cmd;
59 module_param(index, int, 0444);
60 MODULE_PARM_DESC(index, "Index value for Intel HD audio interface.");
61 module_param(id, charp, 0444);
62 MODULE_PARM_DESC(id, "ID string for Intel HD audio interface.");
63 module_param(model, charp, 0444);
64 MODULE_PARM_DESC(model, "Use the given board model.");
65 module_param(position_fix, int, 0444);
66 MODULE_PARM_DESC(position_fix, "Fix DMA pointer (0 = auto, 1 = none, 2 = POSBUF, 3 = FIFO size).");
67 module_param(probe_mask, int, 0444);
68 MODULE_PARM_DESC(probe_mask, "Bitmask to probe codecs (default = -1).");
69 module_param(single_cmd, bool, 0444);
70 MODULE_PARM_DESC(single_cmd, "Use single command to communicate with codecs (for debugging only).");
73 /* just for backward compatibility */
75 module_param(enable, bool, 0444);
77 MODULE_LICENSE("GPL");
78 MODULE_SUPPORTED_DEVICE("{{Intel, ICH6},"
88 MODULE_DESCRIPTION("Intel HDA driver");
90 #define SFX "hda-intel: "
95 #define ICH6_REG_GCAP 0x00
96 #define ICH6_REG_VMIN 0x02
97 #define ICH6_REG_VMAJ 0x03
98 #define ICH6_REG_OUTPAY 0x04
99 #define ICH6_REG_INPAY 0x06
100 #define ICH6_REG_GCTL 0x08
101 #define ICH6_REG_WAKEEN 0x0c
102 #define ICH6_REG_STATESTS 0x0e
103 #define ICH6_REG_GSTS 0x10
104 #define ICH6_REG_INTCTL 0x20
105 #define ICH6_REG_INTSTS 0x24
106 #define ICH6_REG_WALCLK 0x30
107 #define ICH6_REG_SYNC 0x34
108 #define ICH6_REG_CORBLBASE 0x40
109 #define ICH6_REG_CORBUBASE 0x44
110 #define ICH6_REG_CORBWP 0x48
111 #define ICH6_REG_CORBRP 0x4A
112 #define ICH6_REG_CORBCTL 0x4c
113 #define ICH6_REG_CORBSTS 0x4d
114 #define ICH6_REG_CORBSIZE 0x4e
116 #define ICH6_REG_RIRBLBASE 0x50
117 #define ICH6_REG_RIRBUBASE 0x54
118 #define ICH6_REG_RIRBWP 0x58
119 #define ICH6_REG_RINTCNT 0x5a
120 #define ICH6_REG_RIRBCTL 0x5c
121 #define ICH6_REG_RIRBSTS 0x5d
122 #define ICH6_REG_RIRBSIZE 0x5e
124 #define ICH6_REG_IC 0x60
125 #define ICH6_REG_IR 0x64
126 #define ICH6_REG_IRS 0x68
127 #define ICH6_IRS_VALID (1<<1)
128 #define ICH6_IRS_BUSY (1<<0)
130 #define ICH6_REG_DPLBASE 0x70
131 #define ICH6_REG_DPUBASE 0x74
132 #define ICH6_DPLBASE_ENABLE 0x1 /* Enable position buffer */
134 /* SD offset: SDI0=0x80, SDI1=0xa0, ... SDO3=0x160 */
135 enum { SDI0, SDI1, SDI2, SDI3, SDO0, SDO1, SDO2, SDO3 };
137 /* stream register offsets from stream base */
138 #define ICH6_REG_SD_CTL 0x00
139 #define ICH6_REG_SD_STS 0x03
140 #define ICH6_REG_SD_LPIB 0x04
141 #define ICH6_REG_SD_CBL 0x08
142 #define ICH6_REG_SD_LVI 0x0c
143 #define ICH6_REG_SD_FIFOW 0x0e
144 #define ICH6_REG_SD_FIFOSIZE 0x10
145 #define ICH6_REG_SD_FORMAT 0x12
146 #define ICH6_REG_SD_BDLPL 0x18
147 #define ICH6_REG_SD_BDLPU 0x1c
150 #define ICH6_PCIREG_TCSEL 0x44
156 /* max number of SDs */
157 /* ICH, ATI and VIA have 4 playback and 4 capture */
158 #define ICH6_CAPTURE_INDEX 0
159 #define ICH6_NUM_CAPTURE 4
160 #define ICH6_PLAYBACK_INDEX 4
161 #define ICH6_NUM_PLAYBACK 4
163 /* ULI has 6 playback and 5 capture */
164 #define ULI_CAPTURE_INDEX 0
165 #define ULI_NUM_CAPTURE 5
166 #define ULI_PLAYBACK_INDEX 5
167 #define ULI_NUM_PLAYBACK 6
169 /* this number is statically defined for simplicity */
170 #define MAX_AZX_DEV 16
172 /* max number of fragments - we may use more if allocating more pages for BDL */
173 #define BDL_SIZE PAGE_ALIGN(8192)
174 #define AZX_MAX_FRAG (BDL_SIZE / (MAX_AZX_DEV * 16))
175 /* max buffer size - no h/w limit, you can increase as you like */
176 #define AZX_MAX_BUF_SIZE (1024*1024*1024)
177 /* max number of PCM devics per card */
178 #define AZX_MAX_AUDIO_PCMS 6
179 #define AZX_MAX_MODEM_PCMS 2
180 #define AZX_MAX_PCMS (AZX_MAX_AUDIO_PCMS + AZX_MAX_MODEM_PCMS)
182 /* RIRB int mask: overrun[2], response[0] */
183 #define RIRB_INT_RESPONSE 0x01
184 #define RIRB_INT_OVERRUN 0x04
185 #define RIRB_INT_MASK 0x05
187 /* STATESTS int mask: SD2,SD1,SD0 */
188 #define STATESTS_INT_MASK 0x07
189 #define AZX_MAX_CODECS 4
192 #define SD_CTL_STREAM_RESET 0x01 /* stream reset bit */
193 #define SD_CTL_DMA_START 0x02 /* stream DMA start bit */
194 #define SD_CTL_STREAM_TAG_MASK (0xf << 20)
195 #define SD_CTL_STREAM_TAG_SHIFT 20
197 /* SD_CTL and SD_STS */
198 #define SD_INT_DESC_ERR 0x10 /* descriptor error interrupt */
199 #define SD_INT_FIFO_ERR 0x08 /* FIFO error interrupt */
200 #define SD_INT_COMPLETE 0x04 /* completion interrupt */
201 #define SD_INT_MASK (SD_INT_DESC_ERR|SD_INT_FIFO_ERR|SD_INT_COMPLETE)
204 #define SD_STS_FIFO_READY 0x20 /* FIFO ready */
206 /* INTCTL and INTSTS */
207 #define ICH6_INT_ALL_STREAM 0xff /* all stream interrupts */
208 #define ICH6_INT_CTRL_EN 0x40000000 /* controller interrupt enable bit */
209 #define ICH6_INT_GLOBAL_EN 0x80000000 /* global interrupt enable bit */
211 /* GCTL unsolicited response enable bit */
212 #define ICH6_GCTL_UREN (1<<8)
215 #define ICH6_GCTL_RESET (1<<0)
217 /* CORB/RIRB control, read/write pointer */
218 #define ICH6_RBCTL_DMA_EN 0x02 /* enable DMA */
219 #define ICH6_RBCTL_IRQ_EN 0x01 /* enable IRQ */
220 #define ICH6_RBRWP_CLR 0x8000 /* read/write pointer clear */
221 /* below are so far hardcoded - should read registers in future */
222 #define ICH6_MAX_CORB_ENTRIES 256
223 #define ICH6_MAX_RIRB_ENTRIES 256
225 /* position fix mode */
233 /* Defines for ATI HD Audio support in SB450 south bridge */
234 #define ATI_SB450_HDAUDIO_MISC_CNTR2_ADDR 0x42
235 #define ATI_SB450_HDAUDIO_ENABLE_SNOOP 0x02
237 /* Defines for Nvidia HDA support */
238 #define NVIDIA_HDA_TRANSREG_ADDR 0x4e
239 #define NVIDIA_HDA_ENABLE_COHBITS 0x0f
245 u32 *bdl; /* virtual address of the BDL */
246 dma_addr_t bdl_addr; /* physical address of the BDL */
247 volatile u32 *posbuf; /* position buffer pointer */
249 unsigned int bufsize; /* size of the play buffer in bytes */
250 unsigned int fragsize; /* size of each period in bytes */
251 unsigned int frags; /* number for period in the play buffer */
252 unsigned int fifo_size; /* FIFO size */
254 void __iomem *sd_addr; /* stream descriptor pointer */
256 u32 sd_int_sta_mask; /* stream int status mask */
259 struct snd_pcm_substream *substream; /* assigned substream, set in PCM open */
260 unsigned int format_val; /* format value to be set in the controller and the codec */
261 unsigned char stream_tag; /* assigned stream */
262 unsigned char index; /* stream index */
263 /* for sanity check of position buffer */
264 unsigned int period_intr;
266 unsigned int opened: 1;
267 unsigned int running: 1;
272 u32 *buf; /* CORB/RIRB buffer
273 * Each CORB entry is 4byte, RIRB is 8byte
275 dma_addr_t addr; /* physical address of CORB/RIRB buffer */
277 unsigned short rp, wp; /* read/write pointers */
278 int cmds; /* number of pending requests */
279 u32 res; /* last read value */
283 struct snd_card *card;
286 /* chip type specific */
288 int playback_streams;
289 int playback_index_offset;
291 int capture_index_offset;
296 void __iomem *remap_addr;
301 struct mutex open_mutex;
303 /* streams (x num_streams) */
304 struct azx_dev *azx_dev;
307 unsigned int pcm_devs;
308 struct snd_pcm *pcm[AZX_MAX_PCMS];
311 unsigned short codec_mask;
318 /* BDL, CORB/RIRB and position buffers */
319 struct snd_dma_buffer bdl;
320 struct snd_dma_buffer rb;
321 struct snd_dma_buffer posbuf;
325 unsigned int initialized: 1;
326 unsigned int single_cmd: 1;
339 static char *driver_short_names[] __devinitdata = {
340 [AZX_DRIVER_ICH] = "HDA Intel",
341 [AZX_DRIVER_ATI] = "HDA ATI SB",
342 [AZX_DRIVER_VIA] = "HDA VIA VT82xx",
343 [AZX_DRIVER_SIS] = "HDA SIS966",
344 [AZX_DRIVER_ULI] = "HDA ULI M5461",
345 [AZX_DRIVER_NVIDIA] = "HDA NVidia",
349 * macros for easy use
351 #define azx_writel(chip,reg,value) \
352 writel(value, (chip)->remap_addr + ICH6_REG_##reg)
353 #define azx_readl(chip,reg) \
354 readl((chip)->remap_addr + ICH6_REG_##reg)
355 #define azx_writew(chip,reg,value) \
356 writew(value, (chip)->remap_addr + ICH6_REG_##reg)
357 #define azx_readw(chip,reg) \
358 readw((chip)->remap_addr + ICH6_REG_##reg)
359 #define azx_writeb(chip,reg,value) \
360 writeb(value, (chip)->remap_addr + ICH6_REG_##reg)
361 #define azx_readb(chip,reg) \
362 readb((chip)->remap_addr + ICH6_REG_##reg)
364 #define azx_sd_writel(dev,reg,value) \
365 writel(value, (dev)->sd_addr + ICH6_REG_##reg)
366 #define azx_sd_readl(dev,reg) \
367 readl((dev)->sd_addr + ICH6_REG_##reg)
368 #define azx_sd_writew(dev,reg,value) \
369 writew(value, (dev)->sd_addr + ICH6_REG_##reg)
370 #define azx_sd_readw(dev,reg) \
371 readw((dev)->sd_addr + ICH6_REG_##reg)
372 #define azx_sd_writeb(dev,reg,value) \
373 writeb(value, (dev)->sd_addr + ICH6_REG_##reg)
374 #define azx_sd_readb(dev,reg) \
375 readb((dev)->sd_addr + ICH6_REG_##reg)
377 /* for pcm support */
378 #define get_azx_dev(substream) (substream->runtime->private_data)
380 /* Get the upper 32bit of the given dma_addr_t
381 * Compiler should optimize and eliminate the code if dma_addr_t is 32bit
383 #define upper_32bit(addr) (sizeof(addr) > 4 ? (u32)((addr) >> 32) : (u32)0)
387 * Interface for HD codec
391 * CORB / RIRB interface
393 static int azx_alloc_cmd_io(struct azx *chip)
397 /* single page (at least 4096 bytes) must suffice for both ringbuffes */
398 err = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(chip->pci),
399 PAGE_SIZE, &chip->rb);
401 snd_printk(KERN_ERR SFX "cannot allocate CORB/RIRB\n");
407 static void azx_init_cmd_io(struct azx *chip)
410 chip->corb.addr = chip->rb.addr;
411 chip->corb.buf = (u32 *)chip->rb.area;
412 azx_writel(chip, CORBLBASE, (u32)chip->corb.addr);
413 azx_writel(chip, CORBUBASE, upper_32bit(chip->corb.addr));
415 /* set the corb size to 256 entries (ULI requires explicitly) */
416 azx_writeb(chip, CORBSIZE, 0x02);
417 /* set the corb write pointer to 0 */
418 azx_writew(chip, CORBWP, 0);
419 /* reset the corb hw read pointer */
420 azx_writew(chip, CORBRP, ICH6_RBRWP_CLR);
421 /* enable corb dma */
422 azx_writeb(chip, CORBCTL, ICH6_RBCTL_DMA_EN);
425 chip->rirb.addr = chip->rb.addr + 2048;
426 chip->rirb.buf = (u32 *)(chip->rb.area + 2048);
427 azx_writel(chip, RIRBLBASE, (u32)chip->rirb.addr);
428 azx_writel(chip, RIRBUBASE, upper_32bit(chip->rirb.addr));
430 /* set the rirb size to 256 entries (ULI requires explicitly) */
431 azx_writeb(chip, RIRBSIZE, 0x02);
432 /* reset the rirb hw write pointer */
433 azx_writew(chip, RIRBWP, ICH6_RBRWP_CLR);
434 /* set N=1, get RIRB response interrupt for new entry */
435 azx_writew(chip, RINTCNT, 1);
436 /* enable rirb dma and response irq */
437 azx_writeb(chip, RIRBCTL, ICH6_RBCTL_DMA_EN | ICH6_RBCTL_IRQ_EN);
438 chip->rirb.rp = chip->rirb.cmds = 0;
441 static void azx_free_cmd_io(struct azx *chip)
443 /* disable ringbuffer DMAs */
444 azx_writeb(chip, RIRBCTL, 0);
445 azx_writeb(chip, CORBCTL, 0);
449 static int azx_corb_send_cmd(struct hda_codec *codec, hda_nid_t nid, int direct,
450 unsigned int verb, unsigned int para)
452 struct azx *chip = codec->bus->private_data;
456 val = (u32)(codec->addr & 0x0f) << 28;
457 val |= (u32)direct << 27;
458 val |= (u32)nid << 20;
462 /* add command to corb */
463 wp = azx_readb(chip, CORBWP);
465 wp %= ICH6_MAX_CORB_ENTRIES;
467 spin_lock_irq(&chip->reg_lock);
469 chip->corb.buf[wp] = cpu_to_le32(val);
470 azx_writel(chip, CORBWP, wp);
471 spin_unlock_irq(&chip->reg_lock);
476 #define ICH6_RIRB_EX_UNSOL_EV (1<<4)
478 /* retrieve RIRB entry - called from interrupt handler */
479 static void azx_update_rirb(struct azx *chip)
484 wp = azx_readb(chip, RIRBWP);
485 if (wp == chip->rirb.wp)
489 while (chip->rirb.rp != wp) {
491 chip->rirb.rp %= ICH6_MAX_RIRB_ENTRIES;
493 rp = chip->rirb.rp << 1; /* an RIRB entry is 8-bytes */
494 res_ex = le32_to_cpu(chip->rirb.buf[rp + 1]);
495 res = le32_to_cpu(chip->rirb.buf[rp]);
496 if (res_ex & ICH6_RIRB_EX_UNSOL_EV)
497 snd_hda_queue_unsol_event(chip->bus, res, res_ex);
498 else if (chip->rirb.cmds) {
500 chip->rirb.res = res;
505 /* receive a response */
506 static unsigned int azx_rirb_get_response(struct hda_codec *codec)
508 struct azx *chip = codec->bus->private_data;
511 while (chip->rirb.cmds) {
514 "hda_intel: azx_get_response timeout, "
515 "switching to single_cmd mode...\n");
516 chip->rirb.rp = azx_readb(chip, RIRBWP);
518 /* switch to single_cmd mode */
519 chip->single_cmd = 1;
520 azx_free_cmd_io(chip);
525 return chip->rirb.res; /* the last value */
529 * Use the single immediate command instead of CORB/RIRB for simplicity
531 * Note: according to Intel, this is not preferred use. The command was
532 * intended for the BIOS only, and may get confused with unsolicited
533 * responses. So, we shouldn't use it for normal operation from the
535 * I left the codes, however, for debugging/testing purposes.
539 static int azx_single_send_cmd(struct hda_codec *codec, hda_nid_t nid,
540 int direct, unsigned int verb,
543 struct azx *chip = codec->bus->private_data;
547 val = (u32)(codec->addr & 0x0f) << 28;
548 val |= (u32)direct << 27;
549 val |= (u32)nid << 20;
554 /* check ICB busy bit */
555 if (! (azx_readw(chip, IRS) & ICH6_IRS_BUSY)) {
556 /* Clear IRV valid bit */
557 azx_writew(chip, IRS, azx_readw(chip, IRS) | ICH6_IRS_VALID);
558 azx_writel(chip, IC, val);
559 azx_writew(chip, IRS, azx_readw(chip, IRS) | ICH6_IRS_BUSY);
564 snd_printd(SFX "send_cmd timeout: IRS=0x%x, val=0x%x\n", azx_readw(chip, IRS), val);
568 /* receive a response */
569 static unsigned int azx_single_get_response(struct hda_codec *codec)
571 struct azx *chip = codec->bus->private_data;
575 /* check IRV busy bit */
576 if (azx_readw(chip, IRS) & ICH6_IRS_VALID)
577 return azx_readl(chip, IR);
580 snd_printd(SFX "get_response timeout: IRS=0x%x\n", azx_readw(chip, IRS));
581 return (unsigned int)-1;
585 * The below are the main callbacks from hda_codec.
587 * They are just the skeleton to call sub-callbacks according to the
588 * current setting of chip->single_cmd.
592 static int azx_send_cmd(struct hda_codec *codec, hda_nid_t nid,
593 int direct, unsigned int verb,
596 struct azx *chip = codec->bus->private_data;
597 if (chip->single_cmd)
598 return azx_single_send_cmd(codec, nid, direct, verb, para);
600 return azx_corb_send_cmd(codec, nid, direct, verb, para);
604 static unsigned int azx_get_response(struct hda_codec *codec)
606 struct azx *chip = codec->bus->private_data;
607 if (chip->single_cmd)
608 return azx_single_get_response(codec);
610 return azx_rirb_get_response(codec);
614 /* reset codec link */
615 static int azx_reset(struct azx *chip)
619 /* reset controller */
620 azx_writel(chip, GCTL, azx_readl(chip, GCTL) & ~ICH6_GCTL_RESET);
623 while (azx_readb(chip, GCTL) && --count)
626 /* delay for >= 100us for codec PLL to settle per spec
627 * Rev 0.9 section 5.5.1
631 /* Bring controller out of reset */
632 azx_writeb(chip, GCTL, azx_readb(chip, GCTL) | ICH6_GCTL_RESET);
635 while (! azx_readb(chip, GCTL) && --count)
638 /* Brent Chartrand said to wait >= 540us for codecs to intialize */
641 /* check to see if controller is ready */
642 if (! azx_readb(chip, GCTL)) {
643 snd_printd("azx_reset: controller not ready!\n");
647 /* Accept unsolicited responses */
648 azx_writel(chip, GCTL, azx_readl(chip, GCTL) | ICH6_GCTL_UREN);
651 if (! chip->codec_mask) {
652 chip->codec_mask = azx_readw(chip, STATESTS);
653 snd_printdd("codec_mask = 0x%x\n", chip->codec_mask);
664 /* enable interrupts */
665 static void azx_int_enable(struct azx *chip)
667 /* enable controller CIE and GIE */
668 azx_writel(chip, INTCTL, azx_readl(chip, INTCTL) |
669 ICH6_INT_CTRL_EN | ICH6_INT_GLOBAL_EN);
672 /* disable interrupts */
673 static void azx_int_disable(struct azx *chip)
677 /* disable interrupts in stream descriptor */
678 for (i = 0; i < chip->num_streams; i++) {
679 struct azx_dev *azx_dev = &chip->azx_dev[i];
680 azx_sd_writeb(azx_dev, SD_CTL,
681 azx_sd_readb(azx_dev, SD_CTL) & ~SD_INT_MASK);
684 /* disable SIE for all streams */
685 azx_writeb(chip, INTCTL, 0);
687 /* disable controller CIE and GIE */
688 azx_writel(chip, INTCTL, azx_readl(chip, INTCTL) &
689 ~(ICH6_INT_CTRL_EN | ICH6_INT_GLOBAL_EN));
692 /* clear interrupts */
693 static void azx_int_clear(struct azx *chip)
697 /* clear stream status */
698 for (i = 0; i < chip->num_streams; i++) {
699 struct azx_dev *azx_dev = &chip->azx_dev[i];
700 azx_sd_writeb(azx_dev, SD_STS, SD_INT_MASK);
704 azx_writeb(chip, STATESTS, STATESTS_INT_MASK);
706 /* clear rirb status */
707 azx_writeb(chip, RIRBSTS, RIRB_INT_MASK);
709 /* clear int status */
710 azx_writel(chip, INTSTS, ICH6_INT_CTRL_EN | ICH6_INT_ALL_STREAM);
714 static void azx_stream_start(struct azx *chip, struct azx_dev *azx_dev)
717 azx_writeb(chip, INTCTL,
718 azx_readb(chip, INTCTL) | (1 << azx_dev->index));
719 /* set DMA start and interrupt mask */
720 azx_sd_writeb(azx_dev, SD_CTL, azx_sd_readb(azx_dev, SD_CTL) |
721 SD_CTL_DMA_START | SD_INT_MASK);
725 static void azx_stream_stop(struct azx *chip, struct azx_dev *azx_dev)
728 azx_sd_writeb(azx_dev, SD_CTL, azx_sd_readb(azx_dev, SD_CTL) &
729 ~(SD_CTL_DMA_START | SD_INT_MASK));
730 azx_sd_writeb(azx_dev, SD_STS, SD_INT_MASK); /* to be sure */
732 azx_writeb(chip, INTCTL,
733 azx_readb(chip, INTCTL) & ~(1 << azx_dev->index));
738 * initialize the chip
740 static void azx_init_chip(struct azx *chip)
744 /* Clear bits 0-2 of PCI register TCSEL (at offset 0x44)
745 * TCSEL == Traffic Class Select Register, which sets PCI express QOS
746 * Ensuring these bits are 0 clears playback static on some HD Audio codecs
748 pci_read_config_byte (chip->pci, ICH6_PCIREG_TCSEL, ®);
749 pci_write_config_byte(chip->pci, ICH6_PCIREG_TCSEL, reg & 0xf8);
751 /* reset controller */
754 /* initialize interrupts */
756 azx_int_enable(chip);
758 /* initialize the codec command I/O */
759 if (! chip->single_cmd)
760 azx_init_cmd_io(chip);
762 /* program the position buffer */
763 azx_writel(chip, DPLBASE, (u32)chip->posbuf.addr);
764 azx_writel(chip, DPUBASE, upper_32bit(chip->posbuf.addr));
766 switch (chip->driver_type) {
768 /* For ATI SB450 azalia HD audio, we need to enable snoop */
769 pci_read_config_byte(chip->pci, ATI_SB450_HDAUDIO_MISC_CNTR2_ADDR,
771 pci_write_config_byte(chip->pci, ATI_SB450_HDAUDIO_MISC_CNTR2_ADDR,
772 (reg & 0xf8) | ATI_SB450_HDAUDIO_ENABLE_SNOOP);
774 case AZX_DRIVER_NVIDIA:
775 /* For NVIDIA HDA, enable snoop */
776 pci_read_config_byte(chip->pci,NVIDIA_HDA_TRANSREG_ADDR, ®);
777 pci_write_config_byte(chip->pci,NVIDIA_HDA_TRANSREG_ADDR,
778 (reg & 0xf0) | NVIDIA_HDA_ENABLE_COHBITS);
787 static irqreturn_t azx_interrupt(int irq, void* dev_id, struct pt_regs *regs)
789 struct azx *chip = dev_id;
790 struct azx_dev *azx_dev;
794 spin_lock(&chip->reg_lock);
796 status = azx_readl(chip, INTSTS);
798 spin_unlock(&chip->reg_lock);
802 for (i = 0; i < chip->num_streams; i++) {
803 azx_dev = &chip->azx_dev[i];
804 if (status & azx_dev->sd_int_sta_mask) {
805 azx_sd_writeb(azx_dev, SD_STS, SD_INT_MASK);
806 if (azx_dev->substream && azx_dev->running) {
807 azx_dev->period_intr++;
808 spin_unlock(&chip->reg_lock);
809 snd_pcm_period_elapsed(azx_dev->substream);
810 spin_lock(&chip->reg_lock);
816 status = azx_readb(chip, RIRBSTS);
817 if (status & RIRB_INT_MASK) {
818 if (! chip->single_cmd && (status & RIRB_INT_RESPONSE))
819 azx_update_rirb(chip);
820 azx_writeb(chip, RIRBSTS, RIRB_INT_MASK);
824 /* clear state status int */
825 if (azx_readb(chip, STATESTS) & 0x04)
826 azx_writeb(chip, STATESTS, 0x04);
828 spin_unlock(&chip->reg_lock);
837 static void azx_setup_periods(struct azx_dev *azx_dev)
839 u32 *bdl = azx_dev->bdl;
840 dma_addr_t dma_addr = azx_dev->substream->runtime->dma_addr;
843 /* reset BDL address */
844 azx_sd_writel(azx_dev, SD_BDLPL, 0);
845 azx_sd_writel(azx_dev, SD_BDLPU, 0);
847 /* program the initial BDL entries */
848 for (idx = 0; idx < azx_dev->frags; idx++) {
849 unsigned int off = idx << 2; /* 4 dword step */
850 dma_addr_t addr = dma_addr + idx * azx_dev->fragsize;
851 /* program the address field of the BDL entry */
852 bdl[off] = cpu_to_le32((u32)addr);
853 bdl[off+1] = cpu_to_le32(upper_32bit(addr));
855 /* program the size field of the BDL entry */
856 bdl[off+2] = cpu_to_le32(azx_dev->fragsize);
858 /* program the IOC to enable interrupt when buffer completes */
859 bdl[off+3] = cpu_to_le32(0x01);
864 * set up the SD for streaming
866 static int azx_setup_controller(struct azx *chip, struct azx_dev *azx_dev)
871 /* make sure the run bit is zero for SD */
872 azx_sd_writeb(azx_dev, SD_CTL, azx_sd_readb(azx_dev, SD_CTL) & ~SD_CTL_DMA_START);
874 azx_sd_writeb(azx_dev, SD_CTL, azx_sd_readb(azx_dev, SD_CTL) | SD_CTL_STREAM_RESET);
877 while (!((val = azx_sd_readb(azx_dev, SD_CTL)) & SD_CTL_STREAM_RESET) &&
880 val &= ~SD_CTL_STREAM_RESET;
881 azx_sd_writeb(azx_dev, SD_CTL, val);
885 /* waiting for hardware to report that the stream is out of reset */
886 while (((val = azx_sd_readb(azx_dev, SD_CTL)) & SD_CTL_STREAM_RESET) &&
890 /* program the stream_tag */
891 azx_sd_writel(azx_dev, SD_CTL,
892 (azx_sd_readl(azx_dev, SD_CTL) & ~SD_CTL_STREAM_TAG_MASK) |
893 (azx_dev->stream_tag << SD_CTL_STREAM_TAG_SHIFT));
895 /* program the length of samples in cyclic buffer */
896 azx_sd_writel(azx_dev, SD_CBL, azx_dev->bufsize);
898 /* program the stream format */
899 /* this value needs to be the same as the one programmed */
900 azx_sd_writew(azx_dev, SD_FORMAT, azx_dev->format_val);
902 /* program the stream LVI (last valid index) of the BDL */
903 azx_sd_writew(azx_dev, SD_LVI, azx_dev->frags - 1);
905 /* program the BDL address */
906 /* lower BDL address */
907 azx_sd_writel(azx_dev, SD_BDLPL, (u32)azx_dev->bdl_addr);
908 /* upper BDL address */
909 azx_sd_writel(azx_dev, SD_BDLPU, upper_32bit(azx_dev->bdl_addr));
911 /* enable the position buffer */
912 if (! (azx_readl(chip, DPLBASE) & ICH6_DPLBASE_ENABLE))
913 azx_writel(chip, DPLBASE, (u32)chip->posbuf.addr | ICH6_DPLBASE_ENABLE);
915 /* set the interrupt enable bits in the descriptor control register */
916 azx_sd_writel(azx_dev, SD_CTL, azx_sd_readl(azx_dev, SD_CTL) | SD_INT_MASK);
923 * Codec initialization
926 static int __devinit azx_codec_create(struct azx *chip, const char *model)
928 struct hda_bus_template bus_temp;
931 memset(&bus_temp, 0, sizeof(bus_temp));
932 bus_temp.private_data = chip;
933 bus_temp.modelname = model;
934 bus_temp.pci = chip->pci;
935 bus_temp.ops.command = azx_send_cmd;
936 bus_temp.ops.get_response = azx_get_response;
938 if ((err = snd_hda_bus_new(chip->card, &bus_temp, &chip->bus)) < 0)
942 for (c = 0; c < AZX_MAX_CODECS; c++) {
943 if ((chip->codec_mask & (1 << c)) & probe_mask) {
944 err = snd_hda_codec_new(chip->bus, c, NULL);
951 snd_printk(KERN_ERR SFX "no codecs initialized\n");
963 /* assign a stream for the PCM */
964 static inline struct azx_dev *azx_assign_device(struct azx *chip, int stream)
967 if (stream == SNDRV_PCM_STREAM_PLAYBACK) {
968 dev = chip->playback_index_offset;
969 nums = chip->playback_streams;
971 dev = chip->capture_index_offset;
972 nums = chip->capture_streams;
974 for (i = 0; i < nums; i++, dev++)
975 if (! chip->azx_dev[dev].opened) {
976 chip->azx_dev[dev].opened = 1;
977 return &chip->azx_dev[dev];
982 /* release the assigned stream */
983 static inline void azx_release_device(struct azx_dev *azx_dev)
988 static struct snd_pcm_hardware azx_pcm_hw = {
989 .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
990 SNDRV_PCM_INFO_BLOCK_TRANSFER |
991 SNDRV_PCM_INFO_MMAP_VALID |
992 SNDRV_PCM_INFO_PAUSE /*|*/
993 /*SNDRV_PCM_INFO_RESUME*/),
994 .formats = SNDRV_PCM_FMTBIT_S16_LE,
995 .rates = SNDRV_PCM_RATE_48000,
1000 .buffer_bytes_max = AZX_MAX_BUF_SIZE,
1001 .period_bytes_min = 128,
1002 .period_bytes_max = AZX_MAX_BUF_SIZE / 2,
1004 .periods_max = AZX_MAX_FRAG,
1010 struct hda_codec *codec;
1011 struct hda_pcm_stream *hinfo[2];
1014 static int azx_pcm_open(struct snd_pcm_substream *substream)
1016 struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
1017 struct hda_pcm_stream *hinfo = apcm->hinfo[substream->stream];
1018 struct azx *chip = apcm->chip;
1019 struct azx_dev *azx_dev;
1020 struct snd_pcm_runtime *runtime = substream->runtime;
1021 unsigned long flags;
1024 mutex_lock(&chip->open_mutex);
1025 azx_dev = azx_assign_device(chip, substream->stream);
1026 if (azx_dev == NULL) {
1027 mutex_unlock(&chip->open_mutex);
1030 runtime->hw = azx_pcm_hw;
1031 runtime->hw.channels_min = hinfo->channels_min;
1032 runtime->hw.channels_max = hinfo->channels_max;
1033 runtime->hw.formats = hinfo->formats;
1034 runtime->hw.rates = hinfo->rates;
1035 snd_pcm_limit_hw_rates(runtime);
1036 snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS);
1037 if ((err = hinfo->ops.open(hinfo, apcm->codec, substream)) < 0) {
1038 azx_release_device(azx_dev);
1039 mutex_unlock(&chip->open_mutex);
1042 spin_lock_irqsave(&chip->reg_lock, flags);
1043 azx_dev->substream = substream;
1044 azx_dev->running = 0;
1045 spin_unlock_irqrestore(&chip->reg_lock, flags);
1047 runtime->private_data = azx_dev;
1048 mutex_unlock(&chip->open_mutex);
1052 static int azx_pcm_close(struct snd_pcm_substream *substream)
1054 struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
1055 struct hda_pcm_stream *hinfo = apcm->hinfo[substream->stream];
1056 struct azx *chip = apcm->chip;
1057 struct azx_dev *azx_dev = get_azx_dev(substream);
1058 unsigned long flags;
1060 mutex_lock(&chip->open_mutex);
1061 spin_lock_irqsave(&chip->reg_lock, flags);
1062 azx_dev->substream = NULL;
1063 azx_dev->running = 0;
1064 spin_unlock_irqrestore(&chip->reg_lock, flags);
1065 azx_release_device(azx_dev);
1066 hinfo->ops.close(hinfo, apcm->codec, substream);
1067 mutex_unlock(&chip->open_mutex);
1071 static int azx_pcm_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *hw_params)
1073 return snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
1076 static int azx_pcm_hw_free(struct snd_pcm_substream *substream)
1078 struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
1079 struct azx_dev *azx_dev = get_azx_dev(substream);
1080 struct hda_pcm_stream *hinfo = apcm->hinfo[substream->stream];
1082 /* reset BDL address */
1083 azx_sd_writel(azx_dev, SD_BDLPL, 0);
1084 azx_sd_writel(azx_dev, SD_BDLPU, 0);
1085 azx_sd_writel(azx_dev, SD_CTL, 0);
1087 hinfo->ops.cleanup(hinfo, apcm->codec, substream);
1089 return snd_pcm_lib_free_pages(substream);
1092 static int azx_pcm_prepare(struct snd_pcm_substream *substream)
1094 struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
1095 struct azx *chip = apcm->chip;
1096 struct azx_dev *azx_dev = get_azx_dev(substream);
1097 struct hda_pcm_stream *hinfo = apcm->hinfo[substream->stream];
1098 struct snd_pcm_runtime *runtime = substream->runtime;
1100 azx_dev->bufsize = snd_pcm_lib_buffer_bytes(substream);
1101 azx_dev->fragsize = snd_pcm_lib_period_bytes(substream);
1102 azx_dev->frags = azx_dev->bufsize / azx_dev->fragsize;
1103 azx_dev->format_val = snd_hda_calc_stream_format(runtime->rate,
1107 if (! azx_dev->format_val) {
1108 snd_printk(KERN_ERR SFX "invalid format_val, rate=%d, ch=%d, format=%d\n",
1109 runtime->rate, runtime->channels, runtime->format);
1113 snd_printdd("azx_pcm_prepare: bufsize=0x%x, fragsize=0x%x, format=0x%x\n",
1114 azx_dev->bufsize, azx_dev->fragsize, azx_dev->format_val);
1115 azx_setup_periods(azx_dev);
1116 azx_setup_controller(chip, azx_dev);
1117 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
1118 azx_dev->fifo_size = azx_sd_readw(azx_dev, SD_FIFOSIZE) + 1;
1120 azx_dev->fifo_size = 0;
1122 return hinfo->ops.prepare(hinfo, apcm->codec, azx_dev->stream_tag,
1123 azx_dev->format_val, substream);
1126 static int azx_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
1128 struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
1129 struct azx_dev *azx_dev = get_azx_dev(substream);
1130 struct azx *chip = apcm->chip;
1133 spin_lock(&chip->reg_lock);
1135 case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
1136 case SNDRV_PCM_TRIGGER_RESUME:
1137 case SNDRV_PCM_TRIGGER_START:
1138 azx_stream_start(chip, azx_dev);
1139 azx_dev->running = 1;
1141 case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
1142 case SNDRV_PCM_TRIGGER_SUSPEND:
1143 case SNDRV_PCM_TRIGGER_STOP:
1144 azx_stream_stop(chip, azx_dev);
1145 azx_dev->running = 0;
1150 spin_unlock(&chip->reg_lock);
1151 if (cmd == SNDRV_PCM_TRIGGER_PAUSE_PUSH ||
1152 cmd == SNDRV_PCM_TRIGGER_SUSPEND ||
1153 cmd == SNDRV_PCM_TRIGGER_STOP) {
1155 while (azx_sd_readb(azx_dev, SD_CTL) & SD_CTL_DMA_START && --timeout)
1161 static snd_pcm_uframes_t azx_pcm_pointer(struct snd_pcm_substream *substream)
1163 struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
1164 struct azx *chip = apcm->chip;
1165 struct azx_dev *azx_dev = get_azx_dev(substream);
1168 if (chip->position_fix == POS_FIX_POSBUF ||
1169 chip->position_fix == POS_FIX_AUTO) {
1170 /* use the position buffer */
1171 pos = *azx_dev->posbuf;
1172 if (chip->position_fix == POS_FIX_AUTO &&
1173 azx_dev->period_intr == 1 && ! pos) {
1175 "hda-intel: Invalid position buffer, "
1176 "using LPIB read method instead.\n");
1177 chip->position_fix = POS_FIX_NONE;
1183 pos = azx_sd_readl(azx_dev, SD_LPIB);
1184 if (chip->position_fix == POS_FIX_FIFO)
1185 pos += azx_dev->fifo_size;
1187 if (pos >= azx_dev->bufsize)
1189 return bytes_to_frames(substream->runtime, pos);
1192 static struct snd_pcm_ops azx_pcm_ops = {
1193 .open = azx_pcm_open,
1194 .close = azx_pcm_close,
1195 .ioctl = snd_pcm_lib_ioctl,
1196 .hw_params = azx_pcm_hw_params,
1197 .hw_free = azx_pcm_hw_free,
1198 .prepare = azx_pcm_prepare,
1199 .trigger = azx_pcm_trigger,
1200 .pointer = azx_pcm_pointer,
1203 static void azx_pcm_free(struct snd_pcm *pcm)
1205 kfree(pcm->private_data);
1208 static int __devinit create_codec_pcm(struct azx *chip, struct hda_codec *codec,
1209 struct hda_pcm *cpcm, int pcm_dev)
1212 struct snd_pcm *pcm;
1213 struct azx_pcm *apcm;
1215 snd_assert(cpcm->stream[0].substreams || cpcm->stream[1].substreams, return -EINVAL);
1216 snd_assert(cpcm->name, return -EINVAL);
1218 err = snd_pcm_new(chip->card, cpcm->name, pcm_dev,
1219 cpcm->stream[0].substreams, cpcm->stream[1].substreams,
1223 strcpy(pcm->name, cpcm->name);
1224 apcm = kmalloc(sizeof(*apcm), GFP_KERNEL);
1228 apcm->codec = codec;
1229 apcm->hinfo[0] = &cpcm->stream[0];
1230 apcm->hinfo[1] = &cpcm->stream[1];
1231 pcm->private_data = apcm;
1232 pcm->private_free = azx_pcm_free;
1233 if (cpcm->stream[0].substreams)
1234 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &azx_pcm_ops);
1235 if (cpcm->stream[1].substreams)
1236 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &azx_pcm_ops);
1237 snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
1238 snd_dma_pci_data(chip->pci),
1239 1024 * 64, 1024 * 128);
1240 chip->pcm[pcm_dev] = pcm;
1241 chip->pcm_devs = pcm_dev + 1;
1246 static int __devinit azx_pcm_create(struct azx *chip)
1248 struct list_head *p;
1249 struct hda_codec *codec;
1253 if ((err = snd_hda_build_pcms(chip->bus)) < 0)
1256 /* create audio PCMs */
1258 list_for_each(p, &chip->bus->codec_list) {
1259 codec = list_entry(p, struct hda_codec, list);
1260 for (c = 0; c < codec->num_pcms; c++) {
1261 if (codec->pcm_info[c].is_modem)
1262 continue; /* create later */
1263 if (pcm_dev >= AZX_MAX_AUDIO_PCMS) {
1264 snd_printk(KERN_ERR SFX "Too many audio PCMs\n");
1267 err = create_codec_pcm(chip, codec, &codec->pcm_info[c], pcm_dev);
1274 /* create modem PCMs */
1275 pcm_dev = AZX_MAX_AUDIO_PCMS;
1276 list_for_each(p, &chip->bus->codec_list) {
1277 codec = list_entry(p, struct hda_codec, list);
1278 for (c = 0; c < codec->num_pcms; c++) {
1279 if (! codec->pcm_info[c].is_modem)
1280 continue; /* already created */
1281 if (pcm_dev >= AZX_MAX_PCMS) {
1282 snd_printk(KERN_ERR SFX "Too many modem PCMs\n");
1285 err = create_codec_pcm(chip, codec, &codec->pcm_info[c], pcm_dev);
1288 chip->pcm[pcm_dev]->dev_class = SNDRV_PCM_CLASS_MODEM;
1296 * mixer creation - all stuff is implemented in hda module
1298 static int __devinit azx_mixer_create(struct azx *chip)
1300 return snd_hda_build_controls(chip->bus);
1305 * initialize SD streams
1307 static int __devinit azx_init_stream(struct azx *chip)
1311 /* initialize each stream (aka device)
1312 * assign the starting bdl address to each stream (device) and initialize
1314 for (i = 0; i < chip->num_streams; i++) {
1315 unsigned int off = sizeof(u32) * (i * AZX_MAX_FRAG * 4);
1316 struct azx_dev *azx_dev = &chip->azx_dev[i];
1317 azx_dev->bdl = (u32 *)(chip->bdl.area + off);
1318 azx_dev->bdl_addr = chip->bdl.addr + off;
1319 azx_dev->posbuf = (volatile u32 *)(chip->posbuf.area + i * 8);
1320 /* offset: SDI0=0x80, SDI1=0xa0, ... SDO3=0x160 */
1321 azx_dev->sd_addr = chip->remap_addr + (0x20 * i + 0x80);
1322 /* int mask: SDI0=0x01, SDI1=0x02, ... SDO3=0x80 */
1323 azx_dev->sd_int_sta_mask = 1 << i;
1324 /* stream tag: must be non-zero and unique */
1326 azx_dev->stream_tag = i + 1;
1337 static int azx_suspend(struct pci_dev *pci, pm_message_t state)
1339 struct snd_card *card = pci_get_drvdata(pci);
1340 struct azx *chip = card->private_data;
1343 snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
1344 for (i = 0; i < chip->pcm_devs; i++)
1345 snd_pcm_suspend_all(chip->pcm[i]);
1346 snd_hda_suspend(chip->bus, state);
1347 azx_free_cmd_io(chip);
1348 pci_disable_device(pci);
1349 pci_save_state(pci);
1353 static int azx_resume(struct pci_dev *pci)
1355 struct snd_card *card = pci_get_drvdata(pci);
1356 struct azx *chip = card->private_data;
1358 pci_restore_state(pci);
1359 pci_enable_device(pci);
1360 pci_set_master(pci);
1361 azx_init_chip(chip);
1362 snd_hda_resume(chip->bus);
1363 snd_power_change_state(card, SNDRV_CTL_POWER_D0);
1366 #endif /* CONFIG_PM */
1372 static int azx_free(struct azx *chip)
1374 if (chip->initialized) {
1377 for (i = 0; i < chip->num_streams; i++)
1378 azx_stream_stop(chip, &chip->azx_dev[i]);
1380 /* disable interrupts */
1381 azx_int_disable(chip);
1382 azx_int_clear(chip);
1384 /* disable CORB/RIRB */
1385 azx_free_cmd_io(chip);
1387 /* disable position buffer */
1388 azx_writel(chip, DPLBASE, 0);
1389 azx_writel(chip, DPUBASE, 0);
1391 /* wait a little for interrupts to finish */
1395 if (chip->remap_addr)
1396 iounmap(chip->remap_addr);
1398 free_irq(chip->irq, (void*)chip);
1401 snd_dma_free_pages(&chip->bdl);
1403 snd_dma_free_pages(&chip->rb);
1404 if (chip->posbuf.area)
1405 snd_dma_free_pages(&chip->posbuf);
1406 pci_release_regions(chip->pci);
1407 pci_disable_device(chip->pci);
1408 kfree(chip->azx_dev);
1414 static int azx_dev_free(struct snd_device *device)
1416 return azx_free(device->device_data);
1422 static int __devinit azx_create(struct snd_card *card, struct pci_dev *pci,
1428 static struct snd_device_ops ops = {
1429 .dev_free = azx_dev_free,
1434 if ((err = pci_enable_device(pci)) < 0)
1437 chip = kzalloc(sizeof(*chip), GFP_KERNEL);
1440 snd_printk(KERN_ERR SFX "cannot allocate chip\n");
1441 pci_disable_device(pci);
1445 spin_lock_init(&chip->reg_lock);
1446 mutex_init(&chip->open_mutex);
1450 chip->driver_type = driver_type;
1452 chip->position_fix = position_fix;
1453 chip->single_cmd = single_cmd;
1455 #if BITS_PER_LONG != 64
1456 /* Fix up base address on ULI M5461 */
1457 if (chip->driver_type == AZX_DRIVER_ULI) {
1459 pci_read_config_word(pci, 0x40, &tmp3);
1460 pci_write_config_word(pci, 0x40, tmp3 | 0x10);
1461 pci_write_config_dword(pci, PCI_BASE_ADDRESS_1, 0);
1465 if ((err = pci_request_regions(pci, "ICH HD audio")) < 0) {
1467 pci_disable_device(pci);
1471 chip->addr = pci_resource_start(pci,0);
1472 chip->remap_addr = ioremap_nocache(chip->addr, pci_resource_len(pci,0));
1473 if (chip->remap_addr == NULL) {
1474 snd_printk(KERN_ERR SFX "ioremap error\n");
1479 if (request_irq(pci->irq, azx_interrupt, SA_INTERRUPT|SA_SHIRQ,
1480 "HDA Intel", (void*)chip)) {
1481 snd_printk(KERN_ERR SFX "unable to grab IRQ %d\n", pci->irq);
1485 chip->irq = pci->irq;
1487 pci_set_master(pci);
1488 synchronize_irq(chip->irq);
1490 switch (chip->driver_type) {
1491 case AZX_DRIVER_ULI:
1492 chip->playback_streams = ULI_NUM_PLAYBACK;
1493 chip->capture_streams = ULI_NUM_CAPTURE;
1494 chip->playback_index_offset = ULI_PLAYBACK_INDEX;
1495 chip->capture_index_offset = ULI_CAPTURE_INDEX;
1498 chip->playback_streams = ICH6_NUM_PLAYBACK;
1499 chip->capture_streams = ICH6_NUM_CAPTURE;
1500 chip->playback_index_offset = ICH6_PLAYBACK_INDEX;
1501 chip->capture_index_offset = ICH6_CAPTURE_INDEX;
1504 chip->num_streams = chip->playback_streams + chip->capture_streams;
1505 chip->azx_dev = kcalloc(chip->num_streams, sizeof(*chip->azx_dev), GFP_KERNEL);
1506 if (! chip->azx_dev) {
1507 snd_printk(KERN_ERR "cannot malloc azx_dev\n");
1511 /* allocate memory for the BDL for each stream */
1512 if ((err = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(chip->pci),
1513 BDL_SIZE, &chip->bdl)) < 0) {
1514 snd_printk(KERN_ERR SFX "cannot allocate BDL\n");
1517 /* allocate memory for the position buffer */
1518 if ((err = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(chip->pci),
1519 chip->num_streams * 8, &chip->posbuf)) < 0) {
1520 snd_printk(KERN_ERR SFX "cannot allocate posbuf\n");
1523 /* allocate CORB/RIRB */
1524 if (! chip->single_cmd)
1525 if ((err = azx_alloc_cmd_io(chip)) < 0)
1528 /* initialize streams */
1529 azx_init_stream(chip);
1531 /* initialize chip */
1532 azx_init_chip(chip);
1534 chip->initialized = 1;
1536 /* codec detection */
1537 if (! chip->codec_mask) {
1538 snd_printk(KERN_ERR SFX "no codecs found!\n");
1543 if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) <0) {
1544 snd_printk(KERN_ERR SFX "Error creating device [card]!\n");
1548 strcpy(card->driver, "HDA-Intel");
1549 strcpy(card->shortname, driver_short_names[chip->driver_type]);
1550 sprintf(card->longname, "%s at 0x%lx irq %i", card->shortname, chip->addr, chip->irq);
1560 static int __devinit azx_probe(struct pci_dev *pci, const struct pci_device_id *pci_id)
1562 struct snd_card *card;
1566 card = snd_card_new(index, id, THIS_MODULE, 0);
1568 snd_printk(KERN_ERR SFX "Error creating card!\n");
1572 if ((err = azx_create(card, pci, pci_id->driver_data,
1574 snd_card_free(card);
1577 card->private_data = chip;
1579 /* create codec instances */
1580 if ((err = azx_codec_create(chip, model)) < 0) {
1581 snd_card_free(card);
1585 /* create PCM streams */
1586 if ((err = azx_pcm_create(chip)) < 0) {
1587 snd_card_free(card);
1591 /* create mixer controls */
1592 if ((err = azx_mixer_create(chip)) < 0) {
1593 snd_card_free(card);
1597 snd_card_set_dev(card, &pci->dev);
1599 if ((err = snd_card_register(card)) < 0) {
1600 snd_card_free(card);
1604 pci_set_drvdata(pci, card);
1609 static void __devexit azx_remove(struct pci_dev *pci)
1611 snd_card_free(pci_get_drvdata(pci));
1612 pci_set_drvdata(pci, NULL);
1616 static struct pci_device_id azx_ids[] = {
1617 { 0x8086, 0x2668, PCI_ANY_ID, PCI_ANY_ID, 0, 0, AZX_DRIVER_ICH }, /* ICH6 */
1618 { 0x8086, 0x27d8, PCI_ANY_ID, PCI_ANY_ID, 0, 0, AZX_DRIVER_ICH }, /* ICH7 */
1619 { 0x8086, 0x269a, PCI_ANY_ID, PCI_ANY_ID, 0, 0, AZX_DRIVER_ICH }, /* ESB2 */
1620 { 0x8086, 0x284b, PCI_ANY_ID, PCI_ANY_ID, 0, 0, AZX_DRIVER_ICH }, /* ICH8 */
1621 { 0x1002, 0x437b, PCI_ANY_ID, PCI_ANY_ID, 0, 0, AZX_DRIVER_ATI }, /* ATI SB450 */
1622 { 0x1106, 0x3288, PCI_ANY_ID, PCI_ANY_ID, 0, 0, AZX_DRIVER_VIA }, /* VIA VT8251/VT8237A */
1623 { 0x1039, 0x7502, PCI_ANY_ID, PCI_ANY_ID, 0, 0, AZX_DRIVER_SIS }, /* SIS966 */
1624 { 0x10b9, 0x5461, PCI_ANY_ID, PCI_ANY_ID, 0, 0, AZX_DRIVER_ULI }, /* ULI M5461 */
1625 { 0x10de, 0x026c, PCI_ANY_ID, PCI_ANY_ID, 0, 0, AZX_DRIVER_NVIDIA }, /* NVIDIA 026c */
1626 { 0x10de, 0x0371, PCI_ANY_ID, PCI_ANY_ID, 0, 0, AZX_DRIVER_NVIDIA }, /* NVIDIA 0371 */
1629 MODULE_DEVICE_TABLE(pci, azx_ids);
1631 /* pci_driver definition */
1632 static struct pci_driver driver = {
1633 .name = "HDA Intel",
1634 .id_table = azx_ids,
1636 .remove = __devexit_p(azx_remove),
1638 .suspend = azx_suspend,
1639 .resume = azx_resume,
1643 static int __init alsa_card_azx_init(void)
1645 return pci_register_driver(&driver);
1648 static void __exit alsa_card_azx_exit(void)
1650 pci_unregister_driver(&driver);
1653 module_init(alsa_card_azx_init)
1654 module_exit(alsa_card_azx_exit)