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;
58 static int disable_msi;
60 module_param(index, int, 0444);
61 MODULE_PARM_DESC(index, "Index value for Intel HD audio interface.");
62 module_param(id, charp, 0444);
63 MODULE_PARM_DESC(id, "ID string for Intel HD audio interface.");
64 module_param(model, charp, 0444);
65 MODULE_PARM_DESC(model, "Use the given board model.");
66 module_param(position_fix, int, 0444);
67 MODULE_PARM_DESC(position_fix, "Fix DMA pointer (0 = auto, 1 = none, 2 = POSBUF, 3 = FIFO size).");
68 module_param(probe_mask, int, 0444);
69 MODULE_PARM_DESC(probe_mask, "Bitmask to probe codecs (default = -1).");
70 module_param(single_cmd, bool, 0444);
71 MODULE_PARM_DESC(single_cmd, "Use single command to communicate with codecs (for debugging only).");
72 module_param(disable_msi, int, 0);
73 MODULE_PARM_DESC(disable_msi, "Disable Message Signaled Interrupt (MSI)");
76 /* just for backward compatibility */
78 module_param(enable, bool, 0444);
80 MODULE_LICENSE("GPL");
81 MODULE_SUPPORTED_DEVICE("{{Intel, ICH6},"
94 MODULE_DESCRIPTION("Intel HDA driver");
96 #define SFX "hda-intel: "
101 #define ICH6_REG_GCAP 0x00
102 #define ICH6_REG_VMIN 0x02
103 #define ICH6_REG_VMAJ 0x03
104 #define ICH6_REG_OUTPAY 0x04
105 #define ICH6_REG_INPAY 0x06
106 #define ICH6_REG_GCTL 0x08
107 #define ICH6_REG_WAKEEN 0x0c
108 #define ICH6_REG_STATESTS 0x0e
109 #define ICH6_REG_GSTS 0x10
110 #define ICH6_REG_INTCTL 0x20
111 #define ICH6_REG_INTSTS 0x24
112 #define ICH6_REG_WALCLK 0x30
113 #define ICH6_REG_SYNC 0x34
114 #define ICH6_REG_CORBLBASE 0x40
115 #define ICH6_REG_CORBUBASE 0x44
116 #define ICH6_REG_CORBWP 0x48
117 #define ICH6_REG_CORBRP 0x4A
118 #define ICH6_REG_CORBCTL 0x4c
119 #define ICH6_REG_CORBSTS 0x4d
120 #define ICH6_REG_CORBSIZE 0x4e
122 #define ICH6_REG_RIRBLBASE 0x50
123 #define ICH6_REG_RIRBUBASE 0x54
124 #define ICH6_REG_RIRBWP 0x58
125 #define ICH6_REG_RINTCNT 0x5a
126 #define ICH6_REG_RIRBCTL 0x5c
127 #define ICH6_REG_RIRBSTS 0x5d
128 #define ICH6_REG_RIRBSIZE 0x5e
130 #define ICH6_REG_IC 0x60
131 #define ICH6_REG_IR 0x64
132 #define ICH6_REG_IRS 0x68
133 #define ICH6_IRS_VALID (1<<1)
134 #define ICH6_IRS_BUSY (1<<0)
136 #define ICH6_REG_DPLBASE 0x70
137 #define ICH6_REG_DPUBASE 0x74
138 #define ICH6_DPLBASE_ENABLE 0x1 /* Enable position buffer */
140 /* SD offset: SDI0=0x80, SDI1=0xa0, ... SDO3=0x160 */
141 enum { SDI0, SDI1, SDI2, SDI3, SDO0, SDO1, SDO2, SDO3 };
143 /* stream register offsets from stream base */
144 #define ICH6_REG_SD_CTL 0x00
145 #define ICH6_REG_SD_STS 0x03
146 #define ICH6_REG_SD_LPIB 0x04
147 #define ICH6_REG_SD_CBL 0x08
148 #define ICH6_REG_SD_LVI 0x0c
149 #define ICH6_REG_SD_FIFOW 0x0e
150 #define ICH6_REG_SD_FIFOSIZE 0x10
151 #define ICH6_REG_SD_FORMAT 0x12
152 #define ICH6_REG_SD_BDLPL 0x18
153 #define ICH6_REG_SD_BDLPU 0x1c
156 #define ICH6_PCIREG_TCSEL 0x44
162 /* max number of SDs */
163 /* ICH, ATI and VIA have 4 playback and 4 capture */
164 #define ICH6_CAPTURE_INDEX 0
165 #define ICH6_NUM_CAPTURE 4
166 #define ICH6_PLAYBACK_INDEX 4
167 #define ICH6_NUM_PLAYBACK 4
169 /* ULI has 6 playback and 5 capture */
170 #define ULI_CAPTURE_INDEX 0
171 #define ULI_NUM_CAPTURE 5
172 #define ULI_PLAYBACK_INDEX 5
173 #define ULI_NUM_PLAYBACK 6
175 /* ATI HDMI has 1 playback and 0 capture */
176 #define ATIHDMI_CAPTURE_INDEX 0
177 #define ATIHDMI_NUM_CAPTURE 0
178 #define ATIHDMI_PLAYBACK_INDEX 0
179 #define ATIHDMI_NUM_PLAYBACK 1
181 /* this number is statically defined for simplicity */
182 #define MAX_AZX_DEV 16
184 /* max number of fragments - we may use more if allocating more pages for BDL */
185 #define BDL_SIZE PAGE_ALIGN(8192)
186 #define AZX_MAX_FRAG (BDL_SIZE / (MAX_AZX_DEV * 16))
187 /* max buffer size - no h/w limit, you can increase as you like */
188 #define AZX_MAX_BUF_SIZE (1024*1024*1024)
189 /* max number of PCM devics per card */
190 #define AZX_MAX_AUDIO_PCMS 6
191 #define AZX_MAX_MODEM_PCMS 2
192 #define AZX_MAX_PCMS (AZX_MAX_AUDIO_PCMS + AZX_MAX_MODEM_PCMS)
194 /* RIRB int mask: overrun[2], response[0] */
195 #define RIRB_INT_RESPONSE 0x01
196 #define RIRB_INT_OVERRUN 0x04
197 #define RIRB_INT_MASK 0x05
199 /* STATESTS int mask: SD2,SD1,SD0 */
200 #define STATESTS_INT_MASK 0x07
201 #define AZX_MAX_CODECS 4
204 #define SD_CTL_STREAM_RESET 0x01 /* stream reset bit */
205 #define SD_CTL_DMA_START 0x02 /* stream DMA start bit */
206 #define SD_CTL_STREAM_TAG_MASK (0xf << 20)
207 #define SD_CTL_STREAM_TAG_SHIFT 20
209 /* SD_CTL and SD_STS */
210 #define SD_INT_DESC_ERR 0x10 /* descriptor error interrupt */
211 #define SD_INT_FIFO_ERR 0x08 /* FIFO error interrupt */
212 #define SD_INT_COMPLETE 0x04 /* completion interrupt */
213 #define SD_INT_MASK (SD_INT_DESC_ERR|SD_INT_FIFO_ERR|SD_INT_COMPLETE)
216 #define SD_STS_FIFO_READY 0x20 /* FIFO ready */
218 /* INTCTL and INTSTS */
219 #define ICH6_INT_ALL_STREAM 0xff /* all stream interrupts */
220 #define ICH6_INT_CTRL_EN 0x40000000 /* controller interrupt enable bit */
221 #define ICH6_INT_GLOBAL_EN 0x80000000 /* global interrupt enable bit */
223 /* GCTL unsolicited response enable bit */
224 #define ICH6_GCTL_UREN (1<<8)
227 #define ICH6_GCTL_RESET (1<<0)
229 /* CORB/RIRB control, read/write pointer */
230 #define ICH6_RBCTL_DMA_EN 0x02 /* enable DMA */
231 #define ICH6_RBCTL_IRQ_EN 0x01 /* enable IRQ */
232 #define ICH6_RBRWP_CLR 0x8000 /* read/write pointer clear */
233 /* below are so far hardcoded - should read registers in future */
234 #define ICH6_MAX_CORB_ENTRIES 256
235 #define ICH6_MAX_RIRB_ENTRIES 256
237 /* position fix mode */
245 /* Defines for ATI HD Audio support in SB450 south bridge */
246 #define ATI_SB450_HDAUDIO_MISC_CNTR2_ADDR 0x42
247 #define ATI_SB450_HDAUDIO_ENABLE_SNOOP 0x02
249 /* Defines for Nvidia HDA support */
250 #define NVIDIA_HDA_TRANSREG_ADDR 0x4e
251 #define NVIDIA_HDA_ENABLE_COHBITS 0x0f
257 u32 *bdl; /* virtual address of the BDL */
258 dma_addr_t bdl_addr; /* physical address of the BDL */
259 u32 *posbuf; /* position buffer pointer */
261 unsigned int bufsize; /* size of the play buffer in bytes */
262 unsigned int fragsize; /* size of each period in bytes */
263 unsigned int frags; /* number for period in the play buffer */
264 unsigned int fifo_size; /* FIFO size */
266 void __iomem *sd_addr; /* stream descriptor pointer */
268 u32 sd_int_sta_mask; /* stream int status mask */
271 struct snd_pcm_substream *substream; /* assigned substream, set in PCM open */
272 unsigned int format_val; /* format value to be set in the controller and the codec */
273 unsigned char stream_tag; /* assigned stream */
274 unsigned char index; /* stream index */
275 /* for sanity check of position buffer */
276 unsigned int period_intr;
278 unsigned int opened :1;
279 unsigned int running :1;
284 u32 *buf; /* CORB/RIRB buffer
285 * Each CORB entry is 4byte, RIRB is 8byte
287 dma_addr_t addr; /* physical address of CORB/RIRB buffer */
289 unsigned short rp, wp; /* read/write pointers */
290 int cmds; /* number of pending requests */
291 u32 res; /* last read value */
295 struct snd_card *card;
298 /* chip type specific */
300 int playback_streams;
301 int playback_index_offset;
303 int capture_index_offset;
308 void __iomem *remap_addr;
313 struct mutex open_mutex;
315 /* streams (x num_streams) */
316 struct azx_dev *azx_dev;
319 unsigned int pcm_devs;
320 struct snd_pcm *pcm[AZX_MAX_PCMS];
323 unsigned short codec_mask;
330 /* BDL, CORB/RIRB and position buffers */
331 struct snd_dma_buffer bdl;
332 struct snd_dma_buffer rb;
333 struct snd_dma_buffer posbuf;
337 unsigned int initialized :1;
338 unsigned int single_cmd :1;
339 unsigned int polling_mode :1;
353 static char *driver_short_names[] __devinitdata = {
354 [AZX_DRIVER_ICH] = "HDA Intel",
355 [AZX_DRIVER_ATI] = "HDA ATI SB",
356 [AZX_DRIVER_ATIHDMI] = "HDA ATI HDMI",
357 [AZX_DRIVER_VIA] = "HDA VIA VT82xx",
358 [AZX_DRIVER_SIS] = "HDA SIS966",
359 [AZX_DRIVER_ULI] = "HDA ULI M5461",
360 [AZX_DRIVER_NVIDIA] = "HDA NVidia",
364 * macros for easy use
366 #define azx_writel(chip,reg,value) \
367 writel(value, (chip)->remap_addr + ICH6_REG_##reg)
368 #define azx_readl(chip,reg) \
369 readl((chip)->remap_addr + ICH6_REG_##reg)
370 #define azx_writew(chip,reg,value) \
371 writew(value, (chip)->remap_addr + ICH6_REG_##reg)
372 #define azx_readw(chip,reg) \
373 readw((chip)->remap_addr + ICH6_REG_##reg)
374 #define azx_writeb(chip,reg,value) \
375 writeb(value, (chip)->remap_addr + ICH6_REG_##reg)
376 #define azx_readb(chip,reg) \
377 readb((chip)->remap_addr + ICH6_REG_##reg)
379 #define azx_sd_writel(dev,reg,value) \
380 writel(value, (dev)->sd_addr + ICH6_REG_##reg)
381 #define azx_sd_readl(dev,reg) \
382 readl((dev)->sd_addr + ICH6_REG_##reg)
383 #define azx_sd_writew(dev,reg,value) \
384 writew(value, (dev)->sd_addr + ICH6_REG_##reg)
385 #define azx_sd_readw(dev,reg) \
386 readw((dev)->sd_addr + ICH6_REG_##reg)
387 #define azx_sd_writeb(dev,reg,value) \
388 writeb(value, (dev)->sd_addr + ICH6_REG_##reg)
389 #define azx_sd_readb(dev,reg) \
390 readb((dev)->sd_addr + ICH6_REG_##reg)
392 /* for pcm support */
393 #define get_azx_dev(substream) (substream->runtime->private_data)
395 /* Get the upper 32bit of the given dma_addr_t
396 * Compiler should optimize and eliminate the code if dma_addr_t is 32bit
398 #define upper_32bit(addr) (sizeof(addr) > 4 ? (u32)((addr) >> 32) : (u32)0)
402 * Interface for HD codec
406 * CORB / RIRB interface
408 static int azx_alloc_cmd_io(struct azx *chip)
412 /* single page (at least 4096 bytes) must suffice for both ringbuffes */
413 err = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(chip->pci),
414 PAGE_SIZE, &chip->rb);
416 snd_printk(KERN_ERR SFX "cannot allocate CORB/RIRB\n");
422 static void azx_init_cmd_io(struct azx *chip)
425 chip->corb.addr = chip->rb.addr;
426 chip->corb.buf = (u32 *)chip->rb.area;
427 azx_writel(chip, CORBLBASE, (u32)chip->corb.addr);
428 azx_writel(chip, CORBUBASE, upper_32bit(chip->corb.addr));
430 /* set the corb size to 256 entries (ULI requires explicitly) */
431 azx_writeb(chip, CORBSIZE, 0x02);
432 /* set the corb write pointer to 0 */
433 azx_writew(chip, CORBWP, 0);
434 /* reset the corb hw read pointer */
435 azx_writew(chip, CORBRP, ICH6_RBRWP_CLR);
436 /* enable corb dma */
437 azx_writeb(chip, CORBCTL, ICH6_RBCTL_DMA_EN);
440 chip->rirb.addr = chip->rb.addr + 2048;
441 chip->rirb.buf = (u32 *)(chip->rb.area + 2048);
442 azx_writel(chip, RIRBLBASE, (u32)chip->rirb.addr);
443 azx_writel(chip, RIRBUBASE, upper_32bit(chip->rirb.addr));
445 /* set the rirb size to 256 entries (ULI requires explicitly) */
446 azx_writeb(chip, RIRBSIZE, 0x02);
447 /* reset the rirb hw write pointer */
448 azx_writew(chip, RIRBWP, ICH6_RBRWP_CLR);
449 /* set N=1, get RIRB response interrupt for new entry */
450 azx_writew(chip, RINTCNT, 1);
451 /* enable rirb dma and response irq */
452 azx_writeb(chip, RIRBCTL, ICH6_RBCTL_DMA_EN | ICH6_RBCTL_IRQ_EN);
453 chip->rirb.rp = chip->rirb.cmds = 0;
456 static void azx_free_cmd_io(struct azx *chip)
458 /* disable ringbuffer DMAs */
459 azx_writeb(chip, RIRBCTL, 0);
460 azx_writeb(chip, CORBCTL, 0);
464 static int azx_corb_send_cmd(struct hda_codec *codec, hda_nid_t nid, int direct,
465 unsigned int verb, unsigned int para)
467 struct azx *chip = codec->bus->private_data;
471 val = (u32)(codec->addr & 0x0f) << 28;
472 val |= (u32)direct << 27;
473 val |= (u32)nid << 20;
477 /* add command to corb */
478 wp = azx_readb(chip, CORBWP);
480 wp %= ICH6_MAX_CORB_ENTRIES;
482 spin_lock_irq(&chip->reg_lock);
484 chip->corb.buf[wp] = cpu_to_le32(val);
485 azx_writel(chip, CORBWP, wp);
486 spin_unlock_irq(&chip->reg_lock);
491 #define ICH6_RIRB_EX_UNSOL_EV (1<<4)
493 /* retrieve RIRB entry - called from interrupt handler */
494 static void azx_update_rirb(struct azx *chip)
499 wp = azx_readb(chip, RIRBWP);
500 if (wp == chip->rirb.wp)
504 while (chip->rirb.rp != wp) {
506 chip->rirb.rp %= ICH6_MAX_RIRB_ENTRIES;
508 rp = chip->rirb.rp << 1; /* an RIRB entry is 8-bytes */
509 res_ex = le32_to_cpu(chip->rirb.buf[rp + 1]);
510 res = le32_to_cpu(chip->rirb.buf[rp]);
511 if (res_ex & ICH6_RIRB_EX_UNSOL_EV)
512 snd_hda_queue_unsol_event(chip->bus, res, res_ex);
513 else if (chip->rirb.cmds) {
515 chip->rirb.res = res;
520 /* receive a response */
521 static unsigned int azx_rirb_get_response(struct hda_codec *codec)
523 struct azx *chip = codec->bus->private_data;
524 unsigned long timeout;
527 timeout = jiffies + msecs_to_jiffies(1000);
529 if (chip->polling_mode) {
530 spin_lock_irq(&chip->reg_lock);
531 azx_update_rirb(chip);
532 spin_unlock_irq(&chip->reg_lock);
534 if (! chip->rirb.cmds)
535 return chip->rirb.res; /* the last value */
536 schedule_timeout_interruptible(1);
537 } while (time_after_eq(timeout, jiffies));
539 if (!chip->polling_mode) {
540 snd_printk(KERN_WARNING "hda_intel: azx_get_response timeout, "
541 "switching to polling mode...\n");
542 chip->polling_mode = 1;
546 snd_printk(KERN_ERR "hda_intel: azx_get_response timeout, "
547 "switching to single_cmd mode...\n");
548 chip->rirb.rp = azx_readb(chip, RIRBWP);
550 /* switch to single_cmd mode */
551 chip->single_cmd = 1;
552 azx_free_cmd_io(chip);
557 * Use the single immediate command instead of CORB/RIRB for simplicity
559 * Note: according to Intel, this is not preferred use. The command was
560 * intended for the BIOS only, and may get confused with unsolicited
561 * responses. So, we shouldn't use it for normal operation from the
563 * I left the codes, however, for debugging/testing purposes.
567 static int azx_single_send_cmd(struct hda_codec *codec, hda_nid_t nid,
568 int direct, unsigned int verb,
571 struct azx *chip = codec->bus->private_data;
575 val = (u32)(codec->addr & 0x0f) << 28;
576 val |= (u32)direct << 27;
577 val |= (u32)nid << 20;
582 /* check ICB busy bit */
583 if (! (azx_readw(chip, IRS) & ICH6_IRS_BUSY)) {
584 /* Clear IRV valid bit */
585 azx_writew(chip, IRS, azx_readw(chip, IRS) | ICH6_IRS_VALID);
586 azx_writel(chip, IC, val);
587 azx_writew(chip, IRS, azx_readw(chip, IRS) | ICH6_IRS_BUSY);
592 snd_printd(SFX "send_cmd timeout: IRS=0x%x, val=0x%x\n", azx_readw(chip, IRS), val);
596 /* receive a response */
597 static unsigned int azx_single_get_response(struct hda_codec *codec)
599 struct azx *chip = codec->bus->private_data;
603 /* check IRV busy bit */
604 if (azx_readw(chip, IRS) & ICH6_IRS_VALID)
605 return azx_readl(chip, IR);
608 snd_printd(SFX "get_response timeout: IRS=0x%x\n", azx_readw(chip, IRS));
609 return (unsigned int)-1;
613 * The below are the main callbacks from hda_codec.
615 * They are just the skeleton to call sub-callbacks according to the
616 * current setting of chip->single_cmd.
620 static int azx_send_cmd(struct hda_codec *codec, hda_nid_t nid,
621 int direct, unsigned int verb,
624 struct azx *chip = codec->bus->private_data;
625 if (chip->single_cmd)
626 return azx_single_send_cmd(codec, nid, direct, verb, para);
628 return azx_corb_send_cmd(codec, nid, direct, verb, para);
632 static unsigned int azx_get_response(struct hda_codec *codec)
634 struct azx *chip = codec->bus->private_data;
635 if (chip->single_cmd)
636 return azx_single_get_response(codec);
638 return azx_rirb_get_response(codec);
642 /* reset codec link */
643 static int azx_reset(struct azx *chip)
647 /* reset controller */
648 azx_writel(chip, GCTL, azx_readl(chip, GCTL) & ~ICH6_GCTL_RESET);
651 while (azx_readb(chip, GCTL) && --count)
654 /* delay for >= 100us for codec PLL to settle per spec
655 * Rev 0.9 section 5.5.1
659 /* Bring controller out of reset */
660 azx_writeb(chip, GCTL, azx_readb(chip, GCTL) | ICH6_GCTL_RESET);
663 while (!azx_readb(chip, GCTL) && --count)
666 /* Brent Chartrand said to wait >= 540us for codecs to initialize */
669 /* check to see if controller is ready */
670 if (!azx_readb(chip, GCTL)) {
671 snd_printd("azx_reset: controller not ready!\n");
675 /* Accept unsolicited responses */
676 azx_writel(chip, GCTL, azx_readl(chip, GCTL) | ICH6_GCTL_UREN);
679 if (!chip->codec_mask) {
680 chip->codec_mask = azx_readw(chip, STATESTS);
681 snd_printdd("codec_mask = 0x%x\n", chip->codec_mask);
692 /* enable interrupts */
693 static void azx_int_enable(struct azx *chip)
695 /* enable controller CIE and GIE */
696 azx_writel(chip, INTCTL, azx_readl(chip, INTCTL) |
697 ICH6_INT_CTRL_EN | ICH6_INT_GLOBAL_EN);
700 /* disable interrupts */
701 static void azx_int_disable(struct azx *chip)
705 /* disable interrupts in stream descriptor */
706 for (i = 0; i < chip->num_streams; i++) {
707 struct azx_dev *azx_dev = &chip->azx_dev[i];
708 azx_sd_writeb(azx_dev, SD_CTL,
709 azx_sd_readb(azx_dev, SD_CTL) & ~SD_INT_MASK);
712 /* disable SIE for all streams */
713 azx_writeb(chip, INTCTL, 0);
715 /* disable controller CIE and GIE */
716 azx_writel(chip, INTCTL, azx_readl(chip, INTCTL) &
717 ~(ICH6_INT_CTRL_EN | ICH6_INT_GLOBAL_EN));
720 /* clear interrupts */
721 static void azx_int_clear(struct azx *chip)
725 /* clear stream status */
726 for (i = 0; i < chip->num_streams; i++) {
727 struct azx_dev *azx_dev = &chip->azx_dev[i];
728 azx_sd_writeb(azx_dev, SD_STS, SD_INT_MASK);
732 azx_writeb(chip, STATESTS, STATESTS_INT_MASK);
734 /* clear rirb status */
735 azx_writeb(chip, RIRBSTS, RIRB_INT_MASK);
737 /* clear int status */
738 azx_writel(chip, INTSTS, ICH6_INT_CTRL_EN | ICH6_INT_ALL_STREAM);
742 static void azx_stream_start(struct azx *chip, struct azx_dev *azx_dev)
745 azx_writeb(chip, INTCTL,
746 azx_readb(chip, INTCTL) | (1 << azx_dev->index));
747 /* set DMA start and interrupt mask */
748 azx_sd_writeb(azx_dev, SD_CTL, azx_sd_readb(azx_dev, SD_CTL) |
749 SD_CTL_DMA_START | SD_INT_MASK);
753 static void azx_stream_stop(struct azx *chip, struct azx_dev *azx_dev)
756 azx_sd_writeb(azx_dev, SD_CTL, azx_sd_readb(azx_dev, SD_CTL) &
757 ~(SD_CTL_DMA_START | SD_INT_MASK));
758 azx_sd_writeb(azx_dev, SD_STS, SD_INT_MASK); /* to be sure */
760 azx_writeb(chip, INTCTL,
761 azx_readb(chip, INTCTL) & ~(1 << azx_dev->index));
766 * initialize the chip
768 static void azx_init_chip(struct azx *chip)
772 /* Clear bits 0-2 of PCI register TCSEL (at offset 0x44)
773 * TCSEL == Traffic Class Select Register, which sets PCI express QOS
774 * Ensuring these bits are 0 clears playback static on some HD Audio codecs
776 pci_read_config_byte (chip->pci, ICH6_PCIREG_TCSEL, ®);
777 pci_write_config_byte(chip->pci, ICH6_PCIREG_TCSEL, reg & 0xf8);
779 /* reset controller */
782 /* initialize interrupts */
784 azx_int_enable(chip);
786 /* initialize the codec command I/O */
787 if (!chip->single_cmd)
788 azx_init_cmd_io(chip);
790 /* program the position buffer */
791 azx_writel(chip, DPLBASE, (u32)chip->posbuf.addr);
792 azx_writel(chip, DPUBASE, upper_32bit(chip->posbuf.addr));
794 switch (chip->driver_type) {
796 /* For ATI SB450 azalia HD audio, we need to enable snoop */
797 pci_read_config_byte(chip->pci, ATI_SB450_HDAUDIO_MISC_CNTR2_ADDR,
799 pci_write_config_byte(chip->pci, ATI_SB450_HDAUDIO_MISC_CNTR2_ADDR,
800 (reg & 0xf8) | ATI_SB450_HDAUDIO_ENABLE_SNOOP);
802 case AZX_DRIVER_NVIDIA:
803 /* For NVIDIA HDA, enable snoop */
804 pci_read_config_byte(chip->pci,NVIDIA_HDA_TRANSREG_ADDR, ®);
805 pci_write_config_byte(chip->pci,NVIDIA_HDA_TRANSREG_ADDR,
806 (reg & 0xf0) | NVIDIA_HDA_ENABLE_COHBITS);
815 static irqreturn_t azx_interrupt(int irq, void *dev_id)
817 struct azx *chip = dev_id;
818 struct azx_dev *azx_dev;
822 spin_lock(&chip->reg_lock);
824 status = azx_readl(chip, INTSTS);
826 spin_unlock(&chip->reg_lock);
830 for (i = 0; i < chip->num_streams; i++) {
831 azx_dev = &chip->azx_dev[i];
832 if (status & azx_dev->sd_int_sta_mask) {
833 azx_sd_writeb(azx_dev, SD_STS, SD_INT_MASK);
834 if (azx_dev->substream && azx_dev->running) {
835 azx_dev->period_intr++;
836 spin_unlock(&chip->reg_lock);
837 snd_pcm_period_elapsed(azx_dev->substream);
838 spin_lock(&chip->reg_lock);
844 status = azx_readb(chip, RIRBSTS);
845 if (status & RIRB_INT_MASK) {
846 if (! chip->single_cmd && (status & RIRB_INT_RESPONSE))
847 azx_update_rirb(chip);
848 azx_writeb(chip, RIRBSTS, RIRB_INT_MASK);
852 /* clear state status int */
853 if (azx_readb(chip, STATESTS) & 0x04)
854 azx_writeb(chip, STATESTS, 0x04);
856 spin_unlock(&chip->reg_lock);
865 static void azx_setup_periods(struct azx_dev *azx_dev)
867 u32 *bdl = azx_dev->bdl;
868 dma_addr_t dma_addr = azx_dev->substream->runtime->dma_addr;
871 /* reset BDL address */
872 azx_sd_writel(azx_dev, SD_BDLPL, 0);
873 azx_sd_writel(azx_dev, SD_BDLPU, 0);
875 /* program the initial BDL entries */
876 for (idx = 0; idx < azx_dev->frags; idx++) {
877 unsigned int off = idx << 2; /* 4 dword step */
878 dma_addr_t addr = dma_addr + idx * azx_dev->fragsize;
879 /* program the address field of the BDL entry */
880 bdl[off] = cpu_to_le32((u32)addr);
881 bdl[off+1] = cpu_to_le32(upper_32bit(addr));
883 /* program the size field of the BDL entry */
884 bdl[off+2] = cpu_to_le32(azx_dev->fragsize);
886 /* program the IOC to enable interrupt when buffer completes */
887 bdl[off+3] = cpu_to_le32(0x01);
892 * set up the SD for streaming
894 static int azx_setup_controller(struct azx *chip, struct azx_dev *azx_dev)
899 /* make sure the run bit is zero for SD */
900 azx_sd_writeb(azx_dev, SD_CTL, azx_sd_readb(azx_dev, SD_CTL) & ~SD_CTL_DMA_START);
902 azx_sd_writeb(azx_dev, SD_CTL, azx_sd_readb(azx_dev, SD_CTL) | SD_CTL_STREAM_RESET);
905 while (!((val = azx_sd_readb(azx_dev, SD_CTL)) & SD_CTL_STREAM_RESET) &&
908 val &= ~SD_CTL_STREAM_RESET;
909 azx_sd_writeb(azx_dev, SD_CTL, val);
913 /* waiting for hardware to report that the stream is out of reset */
914 while (((val = azx_sd_readb(azx_dev, SD_CTL)) & SD_CTL_STREAM_RESET) &&
918 /* program the stream_tag */
919 azx_sd_writel(azx_dev, SD_CTL,
920 (azx_sd_readl(azx_dev, SD_CTL) & ~SD_CTL_STREAM_TAG_MASK) |
921 (azx_dev->stream_tag << SD_CTL_STREAM_TAG_SHIFT));
923 /* program the length of samples in cyclic buffer */
924 azx_sd_writel(azx_dev, SD_CBL, azx_dev->bufsize);
926 /* program the stream format */
927 /* this value needs to be the same as the one programmed */
928 azx_sd_writew(azx_dev, SD_FORMAT, azx_dev->format_val);
930 /* program the stream LVI (last valid index) of the BDL */
931 azx_sd_writew(azx_dev, SD_LVI, azx_dev->frags - 1);
933 /* program the BDL address */
934 /* lower BDL address */
935 azx_sd_writel(azx_dev, SD_BDLPL, (u32)azx_dev->bdl_addr);
936 /* upper BDL address */
937 azx_sd_writel(azx_dev, SD_BDLPU, upper_32bit(azx_dev->bdl_addr));
939 /* enable the position buffer */
940 if (! (azx_readl(chip, DPLBASE) & ICH6_DPLBASE_ENABLE))
941 azx_writel(chip, DPLBASE, (u32)chip->posbuf.addr | ICH6_DPLBASE_ENABLE);
943 /* set the interrupt enable bits in the descriptor control register */
944 azx_sd_writel(azx_dev, SD_CTL, azx_sd_readl(azx_dev, SD_CTL) | SD_INT_MASK);
951 * Codec initialization
954 static int __devinit azx_codec_create(struct azx *chip, const char *model)
956 struct hda_bus_template bus_temp;
959 memset(&bus_temp, 0, sizeof(bus_temp));
960 bus_temp.private_data = chip;
961 bus_temp.modelname = model;
962 bus_temp.pci = chip->pci;
963 bus_temp.ops.command = azx_send_cmd;
964 bus_temp.ops.get_response = azx_get_response;
966 if ((err = snd_hda_bus_new(chip->card, &bus_temp, &chip->bus)) < 0)
970 for (c = 0; c < AZX_MAX_CODECS; c++) {
971 if ((chip->codec_mask & (1 << c)) & probe_mask) {
972 err = snd_hda_codec_new(chip->bus, c, NULL);
979 snd_printk(KERN_ERR SFX "no codecs initialized\n");
991 /* assign a stream for the PCM */
992 static inline struct azx_dev *azx_assign_device(struct azx *chip, int stream)
995 if (stream == SNDRV_PCM_STREAM_PLAYBACK) {
996 dev = chip->playback_index_offset;
997 nums = chip->playback_streams;
999 dev = chip->capture_index_offset;
1000 nums = chip->capture_streams;
1002 for (i = 0; i < nums; i++, dev++)
1003 if (! chip->azx_dev[dev].opened) {
1004 chip->azx_dev[dev].opened = 1;
1005 return &chip->azx_dev[dev];
1010 /* release the assigned stream */
1011 static inline void azx_release_device(struct azx_dev *azx_dev)
1013 azx_dev->opened = 0;
1016 static struct snd_pcm_hardware azx_pcm_hw = {
1017 .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1018 SNDRV_PCM_INFO_BLOCK_TRANSFER |
1019 SNDRV_PCM_INFO_MMAP_VALID |
1020 /* No full-resume yet implemented */
1021 /* SNDRV_PCM_INFO_RESUME |*/
1022 SNDRV_PCM_INFO_PAUSE),
1023 .formats = SNDRV_PCM_FMTBIT_S16_LE,
1024 .rates = SNDRV_PCM_RATE_48000,
1029 .buffer_bytes_max = AZX_MAX_BUF_SIZE,
1030 .period_bytes_min = 128,
1031 .period_bytes_max = AZX_MAX_BUF_SIZE / 2,
1033 .periods_max = AZX_MAX_FRAG,
1039 struct hda_codec *codec;
1040 struct hda_pcm_stream *hinfo[2];
1043 static int azx_pcm_open(struct snd_pcm_substream *substream)
1045 struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
1046 struct hda_pcm_stream *hinfo = apcm->hinfo[substream->stream];
1047 struct azx *chip = apcm->chip;
1048 struct azx_dev *azx_dev;
1049 struct snd_pcm_runtime *runtime = substream->runtime;
1050 unsigned long flags;
1053 mutex_lock(&chip->open_mutex);
1054 azx_dev = azx_assign_device(chip, substream->stream);
1055 if (azx_dev == NULL) {
1056 mutex_unlock(&chip->open_mutex);
1059 runtime->hw = azx_pcm_hw;
1060 runtime->hw.channels_min = hinfo->channels_min;
1061 runtime->hw.channels_max = hinfo->channels_max;
1062 runtime->hw.formats = hinfo->formats;
1063 runtime->hw.rates = hinfo->rates;
1064 snd_pcm_limit_hw_rates(runtime);
1065 snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS);
1066 if ((err = hinfo->ops.open(hinfo, apcm->codec, substream)) < 0) {
1067 azx_release_device(azx_dev);
1068 mutex_unlock(&chip->open_mutex);
1071 spin_lock_irqsave(&chip->reg_lock, flags);
1072 azx_dev->substream = substream;
1073 azx_dev->running = 0;
1074 spin_unlock_irqrestore(&chip->reg_lock, flags);
1076 runtime->private_data = azx_dev;
1077 mutex_unlock(&chip->open_mutex);
1081 static int azx_pcm_close(struct snd_pcm_substream *substream)
1083 struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
1084 struct hda_pcm_stream *hinfo = apcm->hinfo[substream->stream];
1085 struct azx *chip = apcm->chip;
1086 struct azx_dev *azx_dev = get_azx_dev(substream);
1087 unsigned long flags;
1089 mutex_lock(&chip->open_mutex);
1090 spin_lock_irqsave(&chip->reg_lock, flags);
1091 azx_dev->substream = NULL;
1092 azx_dev->running = 0;
1093 spin_unlock_irqrestore(&chip->reg_lock, flags);
1094 azx_release_device(azx_dev);
1095 hinfo->ops.close(hinfo, apcm->codec, substream);
1096 mutex_unlock(&chip->open_mutex);
1100 static int azx_pcm_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *hw_params)
1102 return snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
1105 static int azx_pcm_hw_free(struct snd_pcm_substream *substream)
1107 struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
1108 struct azx_dev *azx_dev = get_azx_dev(substream);
1109 struct hda_pcm_stream *hinfo = apcm->hinfo[substream->stream];
1111 /* reset BDL address */
1112 azx_sd_writel(azx_dev, SD_BDLPL, 0);
1113 azx_sd_writel(azx_dev, SD_BDLPU, 0);
1114 azx_sd_writel(azx_dev, SD_CTL, 0);
1116 hinfo->ops.cleanup(hinfo, apcm->codec, substream);
1118 return snd_pcm_lib_free_pages(substream);
1121 static int azx_pcm_prepare(struct snd_pcm_substream *substream)
1123 struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
1124 struct azx *chip = apcm->chip;
1125 struct azx_dev *azx_dev = get_azx_dev(substream);
1126 struct hda_pcm_stream *hinfo = apcm->hinfo[substream->stream];
1127 struct snd_pcm_runtime *runtime = substream->runtime;
1129 azx_dev->bufsize = snd_pcm_lib_buffer_bytes(substream);
1130 azx_dev->fragsize = snd_pcm_lib_period_bytes(substream);
1131 azx_dev->frags = azx_dev->bufsize / azx_dev->fragsize;
1132 azx_dev->format_val = snd_hda_calc_stream_format(runtime->rate,
1136 if (! azx_dev->format_val) {
1137 snd_printk(KERN_ERR SFX "invalid format_val, rate=%d, ch=%d, format=%d\n",
1138 runtime->rate, runtime->channels, runtime->format);
1142 snd_printdd("azx_pcm_prepare: bufsize=0x%x, fragsize=0x%x, format=0x%x\n",
1143 azx_dev->bufsize, azx_dev->fragsize, azx_dev->format_val);
1144 azx_setup_periods(azx_dev);
1145 azx_setup_controller(chip, azx_dev);
1146 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
1147 azx_dev->fifo_size = azx_sd_readw(azx_dev, SD_FIFOSIZE) + 1;
1149 azx_dev->fifo_size = 0;
1151 return hinfo->ops.prepare(hinfo, apcm->codec, azx_dev->stream_tag,
1152 azx_dev->format_val, substream);
1155 static int azx_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
1157 struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
1158 struct azx_dev *azx_dev = get_azx_dev(substream);
1159 struct azx *chip = apcm->chip;
1162 spin_lock(&chip->reg_lock);
1164 case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
1165 case SNDRV_PCM_TRIGGER_RESUME:
1166 case SNDRV_PCM_TRIGGER_START:
1167 azx_stream_start(chip, azx_dev);
1168 azx_dev->running = 1;
1170 case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
1171 case SNDRV_PCM_TRIGGER_SUSPEND:
1172 case SNDRV_PCM_TRIGGER_STOP:
1173 azx_stream_stop(chip, azx_dev);
1174 azx_dev->running = 0;
1179 spin_unlock(&chip->reg_lock);
1180 if (cmd == SNDRV_PCM_TRIGGER_PAUSE_PUSH ||
1181 cmd == SNDRV_PCM_TRIGGER_SUSPEND ||
1182 cmd == SNDRV_PCM_TRIGGER_STOP) {
1184 while (azx_sd_readb(azx_dev, SD_CTL) & SD_CTL_DMA_START && --timeout)
1190 static snd_pcm_uframes_t azx_pcm_pointer(struct snd_pcm_substream *substream)
1192 struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
1193 struct azx *chip = apcm->chip;
1194 struct azx_dev *azx_dev = get_azx_dev(substream);
1197 if (chip->position_fix == POS_FIX_POSBUF ||
1198 chip->position_fix == POS_FIX_AUTO) {
1199 /* use the position buffer */
1200 pos = le32_to_cpu(*azx_dev->posbuf);
1201 if (chip->position_fix == POS_FIX_AUTO &&
1202 azx_dev->period_intr == 1 && ! pos) {
1204 "hda-intel: Invalid position buffer, "
1205 "using LPIB read method instead.\n");
1206 chip->position_fix = POS_FIX_NONE;
1212 pos = azx_sd_readl(azx_dev, SD_LPIB);
1213 if (chip->position_fix == POS_FIX_FIFO)
1214 pos += azx_dev->fifo_size;
1216 if (pos >= azx_dev->bufsize)
1218 return bytes_to_frames(substream->runtime, pos);
1221 static struct snd_pcm_ops azx_pcm_ops = {
1222 .open = azx_pcm_open,
1223 .close = azx_pcm_close,
1224 .ioctl = snd_pcm_lib_ioctl,
1225 .hw_params = azx_pcm_hw_params,
1226 .hw_free = azx_pcm_hw_free,
1227 .prepare = azx_pcm_prepare,
1228 .trigger = azx_pcm_trigger,
1229 .pointer = azx_pcm_pointer,
1232 static void azx_pcm_free(struct snd_pcm *pcm)
1234 kfree(pcm->private_data);
1237 static int __devinit create_codec_pcm(struct azx *chip, struct hda_codec *codec,
1238 struct hda_pcm *cpcm, int pcm_dev)
1241 struct snd_pcm *pcm;
1242 struct azx_pcm *apcm;
1244 /* if no substreams are defined for both playback and capture,
1245 * it's just a placeholder. ignore it.
1247 if (!cpcm->stream[0].substreams && !cpcm->stream[1].substreams)
1250 snd_assert(cpcm->name, return -EINVAL);
1252 err = snd_pcm_new(chip->card, cpcm->name, pcm_dev,
1253 cpcm->stream[0].substreams, cpcm->stream[1].substreams,
1257 strcpy(pcm->name, cpcm->name);
1258 apcm = kmalloc(sizeof(*apcm), GFP_KERNEL);
1262 apcm->codec = codec;
1263 apcm->hinfo[0] = &cpcm->stream[0];
1264 apcm->hinfo[1] = &cpcm->stream[1];
1265 pcm->private_data = apcm;
1266 pcm->private_free = azx_pcm_free;
1267 if (cpcm->stream[0].substreams)
1268 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &azx_pcm_ops);
1269 if (cpcm->stream[1].substreams)
1270 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &azx_pcm_ops);
1271 snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
1272 snd_dma_pci_data(chip->pci),
1273 1024 * 64, 1024 * 128);
1274 chip->pcm[pcm_dev] = pcm;
1275 if (chip->pcm_devs < pcm_dev + 1)
1276 chip->pcm_devs = pcm_dev + 1;
1281 static int __devinit azx_pcm_create(struct azx *chip)
1283 struct list_head *p;
1284 struct hda_codec *codec;
1288 if ((err = snd_hda_build_pcms(chip->bus)) < 0)
1291 /* create audio PCMs */
1293 list_for_each(p, &chip->bus->codec_list) {
1294 codec = list_entry(p, struct hda_codec, list);
1295 for (c = 0; c < codec->num_pcms; c++) {
1296 if (codec->pcm_info[c].is_modem)
1297 continue; /* create later */
1298 if (pcm_dev >= AZX_MAX_AUDIO_PCMS) {
1299 snd_printk(KERN_ERR SFX "Too many audio PCMs\n");
1302 err = create_codec_pcm(chip, codec, &codec->pcm_info[c], pcm_dev);
1309 /* create modem PCMs */
1310 pcm_dev = AZX_MAX_AUDIO_PCMS;
1311 list_for_each(p, &chip->bus->codec_list) {
1312 codec = list_entry(p, struct hda_codec, list);
1313 for (c = 0; c < codec->num_pcms; c++) {
1314 if (! codec->pcm_info[c].is_modem)
1315 continue; /* already created */
1316 if (pcm_dev >= AZX_MAX_PCMS) {
1317 snd_printk(KERN_ERR SFX "Too many modem PCMs\n");
1320 err = create_codec_pcm(chip, codec, &codec->pcm_info[c], pcm_dev);
1323 chip->pcm[pcm_dev]->dev_class = SNDRV_PCM_CLASS_MODEM;
1331 * mixer creation - all stuff is implemented in hda module
1333 static int __devinit azx_mixer_create(struct azx *chip)
1335 return snd_hda_build_controls(chip->bus);
1340 * initialize SD streams
1342 static int __devinit azx_init_stream(struct azx *chip)
1346 /* initialize each stream (aka device)
1347 * assign the starting bdl address to each stream (device) and initialize
1349 for (i = 0; i < chip->num_streams; i++) {
1350 unsigned int off = sizeof(u32) * (i * AZX_MAX_FRAG * 4);
1351 struct azx_dev *azx_dev = &chip->azx_dev[i];
1352 azx_dev->bdl = (u32 *)(chip->bdl.area + off);
1353 azx_dev->bdl_addr = chip->bdl.addr + off;
1354 azx_dev->posbuf = (u32 __iomem *)(chip->posbuf.area + i * 8);
1355 /* offset: SDI0=0x80, SDI1=0xa0, ... SDO3=0x160 */
1356 azx_dev->sd_addr = chip->remap_addr + (0x20 * i + 0x80);
1357 /* int mask: SDI0=0x01, SDI1=0x02, ... SDO3=0x80 */
1358 azx_dev->sd_int_sta_mask = 1 << i;
1359 /* stream tag: must be non-zero and unique */
1361 azx_dev->stream_tag = i + 1;
1372 static int azx_suspend(struct pci_dev *pci, pm_message_t state)
1374 struct snd_card *card = pci_get_drvdata(pci);
1375 struct azx *chip = card->private_data;
1378 snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
1379 for (i = 0; i < chip->pcm_devs; i++)
1380 snd_pcm_suspend_all(chip->pcm[i]);
1381 snd_hda_suspend(chip->bus, state);
1382 azx_free_cmd_io(chip);
1383 if (chip->irq >= 0) {
1384 synchronize_irq(chip->irq);
1385 free_irq(chip->irq, chip);
1389 pci_disable_msi(chip->pci);
1390 pci_disable_device(pci);
1391 pci_save_state(pci);
1392 pci_set_power_state(pci, pci_choose_state(pci, state));
1396 static int azx_resume(struct pci_dev *pci)
1398 struct snd_card *card = pci_get_drvdata(pci);
1399 struct azx *chip = card->private_data;
1401 pci_set_power_state(pci, PCI_D0);
1402 pci_restore_state(pci);
1403 if (pci_enable_device(pci) < 0) {
1404 printk(KERN_ERR "hda-intel: pci_enable_device failed, "
1405 "disabling device\n");
1406 snd_card_disconnect(card);
1409 pci_set_master(pci);
1411 pci_enable_msi(pci);
1412 if (request_irq(pci->irq, azx_interrupt, IRQF_DISABLED|IRQF_SHARED,
1413 "HDA Intel", chip)) {
1414 printk(KERN_ERR "hda-intel: unable to grab IRQ %d, "
1415 "disabling device\n", pci->irq);
1416 snd_card_disconnect(card);
1419 chip->irq = pci->irq;
1420 azx_init_chip(chip);
1421 snd_hda_resume(chip->bus);
1422 snd_power_change_state(card, SNDRV_CTL_POWER_D0);
1425 #endif /* CONFIG_PM */
1431 static int azx_free(struct azx *chip)
1433 if (chip->initialized) {
1436 for (i = 0; i < chip->num_streams; i++)
1437 azx_stream_stop(chip, &chip->azx_dev[i]);
1439 /* disable interrupts */
1440 azx_int_disable(chip);
1441 azx_int_clear(chip);
1443 /* disable CORB/RIRB */
1444 azx_free_cmd_io(chip);
1446 /* disable position buffer */
1447 azx_writel(chip, DPLBASE, 0);
1448 azx_writel(chip, DPUBASE, 0);
1451 if (chip->irq >= 0) {
1452 synchronize_irq(chip->irq);
1453 free_irq(chip->irq, (void*)chip);
1456 pci_disable_msi(chip->pci);
1457 if (chip->remap_addr)
1458 iounmap(chip->remap_addr);
1461 snd_dma_free_pages(&chip->bdl);
1463 snd_dma_free_pages(&chip->rb);
1464 if (chip->posbuf.area)
1465 snd_dma_free_pages(&chip->posbuf);
1466 pci_release_regions(chip->pci);
1467 pci_disable_device(chip->pci);
1468 kfree(chip->azx_dev);
1474 static int azx_dev_free(struct snd_device *device)
1476 return azx_free(device->device_data);
1482 static int __devinit azx_create(struct snd_card *card, struct pci_dev *pci,
1488 static struct snd_device_ops ops = {
1489 .dev_free = azx_dev_free,
1494 err = pci_enable_device(pci);
1498 chip = kzalloc(sizeof(*chip), GFP_KERNEL);
1500 snd_printk(KERN_ERR SFX "cannot allocate chip\n");
1501 pci_disable_device(pci);
1505 spin_lock_init(&chip->reg_lock);
1506 mutex_init(&chip->open_mutex);
1510 chip->driver_type = driver_type;
1512 chip->position_fix = position_fix;
1513 chip->single_cmd = single_cmd;
1515 #if BITS_PER_LONG != 64
1516 /* Fix up base address on ULI M5461 */
1517 if (chip->driver_type == AZX_DRIVER_ULI) {
1519 pci_read_config_word(pci, 0x40, &tmp3);
1520 pci_write_config_word(pci, 0x40, tmp3 | 0x10);
1521 pci_write_config_dword(pci, PCI_BASE_ADDRESS_1, 0);
1525 err = pci_request_regions(pci, "ICH HD audio");
1528 pci_disable_device(pci);
1532 chip->addr = pci_resource_start(pci, 0);
1533 chip->remap_addr = ioremap_nocache(chip->addr, pci_resource_len(pci,0));
1534 if (chip->remap_addr == NULL) {
1535 snd_printk(KERN_ERR SFX "ioremap error\n");
1541 pci_enable_msi(pci);
1543 if (request_irq(pci->irq, azx_interrupt, IRQF_DISABLED|IRQF_SHARED,
1544 "HDA Intel", (void*)chip)) {
1545 snd_printk(KERN_ERR SFX "unable to grab IRQ %d\n", pci->irq);
1549 chip->irq = pci->irq;
1551 pci_set_master(pci);
1552 synchronize_irq(chip->irq);
1554 switch (chip->driver_type) {
1555 case AZX_DRIVER_ULI:
1556 chip->playback_streams = ULI_NUM_PLAYBACK;
1557 chip->capture_streams = ULI_NUM_CAPTURE;
1558 chip->playback_index_offset = ULI_PLAYBACK_INDEX;
1559 chip->capture_index_offset = ULI_CAPTURE_INDEX;
1561 case AZX_DRIVER_ATIHDMI:
1562 chip->playback_streams = ATIHDMI_NUM_PLAYBACK;
1563 chip->capture_streams = ATIHDMI_NUM_CAPTURE;
1564 chip->playback_index_offset = ATIHDMI_PLAYBACK_INDEX;
1565 chip->capture_index_offset = ATIHDMI_CAPTURE_INDEX;
1568 chip->playback_streams = ICH6_NUM_PLAYBACK;
1569 chip->capture_streams = ICH6_NUM_CAPTURE;
1570 chip->playback_index_offset = ICH6_PLAYBACK_INDEX;
1571 chip->capture_index_offset = ICH6_CAPTURE_INDEX;
1574 chip->num_streams = chip->playback_streams + chip->capture_streams;
1575 chip->azx_dev = kcalloc(chip->num_streams, sizeof(*chip->azx_dev), GFP_KERNEL);
1576 if (!chip->azx_dev) {
1577 snd_printk(KERN_ERR "cannot malloc azx_dev\n");
1581 /* allocate memory for the BDL for each stream */
1582 if ((err = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(chip->pci),
1583 BDL_SIZE, &chip->bdl)) < 0) {
1584 snd_printk(KERN_ERR SFX "cannot allocate BDL\n");
1587 /* allocate memory for the position buffer */
1588 if ((err = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(chip->pci),
1589 chip->num_streams * 8, &chip->posbuf)) < 0) {
1590 snd_printk(KERN_ERR SFX "cannot allocate posbuf\n");
1593 /* allocate CORB/RIRB */
1594 if (! chip->single_cmd)
1595 if ((err = azx_alloc_cmd_io(chip)) < 0)
1598 /* initialize streams */
1599 azx_init_stream(chip);
1601 /* initialize chip */
1602 azx_init_chip(chip);
1604 chip->initialized = 1;
1606 /* codec detection */
1607 if (!chip->codec_mask) {
1608 snd_printk(KERN_ERR SFX "no codecs found!\n");
1613 if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) <0) {
1614 snd_printk(KERN_ERR SFX "Error creating device [card]!\n");
1618 strcpy(card->driver, "HDA-Intel");
1619 strcpy(card->shortname, driver_short_names[chip->driver_type]);
1620 sprintf(card->longname, "%s at 0x%lx irq %i", card->shortname, chip->addr, chip->irq);
1630 static int __devinit azx_probe(struct pci_dev *pci, const struct pci_device_id *pci_id)
1632 struct snd_card *card;
1636 card = snd_card_new(index, id, THIS_MODULE, 0);
1638 snd_printk(KERN_ERR SFX "Error creating card!\n");
1642 err = azx_create(card, pci, pci_id->driver_data, &chip);
1644 snd_card_free(card);
1647 card->private_data = chip;
1649 /* create codec instances */
1650 if ((err = azx_codec_create(chip, model)) < 0) {
1651 snd_card_free(card);
1655 /* create PCM streams */
1656 if ((err = azx_pcm_create(chip)) < 0) {
1657 snd_card_free(card);
1661 /* create mixer controls */
1662 if ((err = azx_mixer_create(chip)) < 0) {
1663 snd_card_free(card);
1667 snd_card_set_dev(card, &pci->dev);
1669 if ((err = snd_card_register(card)) < 0) {
1670 snd_card_free(card);
1674 pci_set_drvdata(pci, card);
1679 static void __devexit azx_remove(struct pci_dev *pci)
1681 snd_card_free(pci_get_drvdata(pci));
1682 pci_set_drvdata(pci, NULL);
1686 static struct pci_device_id azx_ids[] = {
1687 { 0x8086, 0x2668, PCI_ANY_ID, PCI_ANY_ID, 0, 0, AZX_DRIVER_ICH }, /* ICH6 */
1688 { 0x8086, 0x27d8, PCI_ANY_ID, PCI_ANY_ID, 0, 0, AZX_DRIVER_ICH }, /* ICH7 */
1689 { 0x8086, 0x269a, PCI_ANY_ID, PCI_ANY_ID, 0, 0, AZX_DRIVER_ICH }, /* ESB2 */
1690 { 0x8086, 0x284b, PCI_ANY_ID, PCI_ANY_ID, 0, 0, AZX_DRIVER_ICH }, /* ICH8 */
1691 { 0x1002, 0x437b, PCI_ANY_ID, PCI_ANY_ID, 0, 0, AZX_DRIVER_ATI }, /* ATI SB450 */
1692 { 0x1002, 0x4383, PCI_ANY_ID, PCI_ANY_ID, 0, 0, AZX_DRIVER_ATI }, /* ATI SB600 */
1693 { 0x1002, 0x793b, PCI_ANY_ID, PCI_ANY_ID, 0, 0, AZX_DRIVER_ATIHDMI }, /* ATI RS600 HDMI */
1694 { 0x1002, 0x7919, PCI_ANY_ID, PCI_ANY_ID, 0, 0, AZX_DRIVER_ATIHDMI }, /* ATI RS690 HDMI */
1695 { 0x1106, 0x3288, PCI_ANY_ID, PCI_ANY_ID, 0, 0, AZX_DRIVER_VIA }, /* VIA VT8251/VT8237A */
1696 { 0x1039, 0x7502, PCI_ANY_ID, PCI_ANY_ID, 0, 0, AZX_DRIVER_SIS }, /* SIS966 */
1697 { 0x10b9, 0x5461, PCI_ANY_ID, PCI_ANY_ID, 0, 0, AZX_DRIVER_ULI }, /* ULI M5461 */
1698 { 0x10de, 0x026c, PCI_ANY_ID, PCI_ANY_ID, 0, 0, AZX_DRIVER_NVIDIA }, /* NVIDIA 026c */
1699 { 0x10de, 0x0371, PCI_ANY_ID, PCI_ANY_ID, 0, 0, AZX_DRIVER_NVIDIA }, /* NVIDIA 0371 */
1700 { 0x10de, 0x03f0, PCI_ANY_ID, PCI_ANY_ID, 0, 0, AZX_DRIVER_NVIDIA }, /* NVIDIA 03f0 */
1703 MODULE_DEVICE_TABLE(pci, azx_ids);
1705 /* pci_driver definition */
1706 static struct pci_driver driver = {
1707 .name = "HDA Intel",
1708 .id_table = azx_ids,
1710 .remove = __devexit_p(azx_remove),
1712 .suspend = azx_suspend,
1713 .resume = azx_resume,
1717 static int __init alsa_card_azx_init(void)
1719 return pci_register_driver(&driver);
1722 static void __exit alsa_card_azx_exit(void)
1724 pci_unregister_driver(&driver);
1727 module_init(alsa_card_azx_init)
1728 module_exit(alsa_card_azx_exit)