ALSA: hda - Workaround for buggy DMA position on ATI controllers
[linux-2.6.git] / sound / pci / hda / hda_intel.c
1 /*
2  *
3  *  hda_intel.c - Implementation of primary alsa driver code base
4  *                for Intel HD Audio.
5  *
6  *  Copyright(c) 2004 Intel Corporation. All rights reserved.
7  *
8  *  Copyright (c) 2004 Takashi Iwai <tiwai@suse.de>
9  *                     PeiSen Hou <pshou@realtek.com.tw>
10  *
11  *  This program is free software; you can redistribute it and/or modify it
12  *  under the terms of the GNU General Public License as published by the Free
13  *  Software Foundation; either version 2 of the License, or (at your option)
14  *  any later version.
15  *
16  *  This program is distributed in the hope that it will be useful, but WITHOUT
17  *  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
18  *  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
19  *  more details.
20  *
21  *  You should have received a copy of the GNU General Public License along with
22  *  this program; if not, write to the Free Software Foundation, Inc., 59
23  *  Temple Place - Suite 330, Boston, MA  02111-1307, USA.
24  *
25  *  CONTACTS:
26  *
27  *  Matt Jared          matt.jared@intel.com
28  *  Andy Kopp           andy.kopp@intel.com
29  *  Dan Kogan           dan.d.kogan@intel.com
30  *
31  *  CHANGES:
32  *
33  *  2004.12.01  Major rewrite by tiwai, merged the work of pshou
34  * 
35  */
36
37 #include <asm/io.h>
38 #include <linux/delay.h>
39 #include <linux/interrupt.h>
40 #include <linux/kernel.h>
41 #include <linux/module.h>
42 #include <linux/dma-mapping.h>
43 #include <linux/moduleparam.h>
44 #include <linux/init.h>
45 #include <linux/slab.h>
46 #include <linux/pci.h>
47 #include <linux/mutex.h>
48 #include <linux/reboot.h>
49 #include <sound/core.h>
50 #include <sound/initval.h>
51 #include "hda_codec.h"
52
53
54 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
55 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
56 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
57 static char *model[SNDRV_CARDS];
58 static int position_fix[SNDRV_CARDS];
59 static int bdl_pos_adj[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS-1)] = -1};
60 static int probe_mask[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS-1)] = -1};
61 static int probe_only[SNDRV_CARDS];
62 static int single_cmd;
63 static int enable_msi;
64
65 module_param_array(index, int, NULL, 0444);
66 MODULE_PARM_DESC(index, "Index value for Intel HD audio interface.");
67 module_param_array(id, charp, NULL, 0444);
68 MODULE_PARM_DESC(id, "ID string for Intel HD audio interface.");
69 module_param_array(enable, bool, NULL, 0444);
70 MODULE_PARM_DESC(enable, "Enable Intel HD audio interface.");
71 module_param_array(model, charp, NULL, 0444);
72 MODULE_PARM_DESC(model, "Use the given board model.");
73 module_param_array(position_fix, int, NULL, 0444);
74 MODULE_PARM_DESC(position_fix, "Fix DMA pointer "
75                  "(0 = auto, 1 = none, 2 = POSBUF).");
76 module_param_array(bdl_pos_adj, int, NULL, 0644);
77 MODULE_PARM_DESC(bdl_pos_adj, "BDL position adjustment offset.");
78 module_param_array(probe_mask, int, NULL, 0444);
79 MODULE_PARM_DESC(probe_mask, "Bitmask to probe codecs (default = -1).");
80 module_param_array(probe_only, bool, NULL, 0444);
81 MODULE_PARM_DESC(probe_only, "Only probing and no codec initialization.");
82 module_param(single_cmd, bool, 0444);
83 MODULE_PARM_DESC(single_cmd, "Use single command to communicate with codecs "
84                  "(for debugging only).");
85 module_param(enable_msi, int, 0444);
86 MODULE_PARM_DESC(enable_msi, "Enable Message Signaled Interrupt (MSI)");
87
88 #ifdef CONFIG_SND_HDA_POWER_SAVE
89 static int power_save = CONFIG_SND_HDA_POWER_SAVE_DEFAULT;
90 module_param(power_save, int, 0644);
91 MODULE_PARM_DESC(power_save, "Automatic power-saving timeout "
92                  "(in second, 0 = disable).");
93
94 /* reset the HD-audio controller in power save mode.
95  * this may give more power-saving, but will take longer time to
96  * wake up.
97  */
98 static int power_save_controller = 1;
99 module_param(power_save_controller, bool, 0644);
100 MODULE_PARM_DESC(power_save_controller, "Reset controller in power save mode.");
101 #endif
102
103 MODULE_LICENSE("GPL");
104 MODULE_SUPPORTED_DEVICE("{{Intel, ICH6},"
105                          "{Intel, ICH6M},"
106                          "{Intel, ICH7},"
107                          "{Intel, ESB2},"
108                          "{Intel, ICH8},"
109                          "{Intel, ICH9},"
110                          "{Intel, ICH10},"
111                          "{Intel, PCH},"
112                          "{Intel, SCH},"
113                          "{ATI, SB450},"
114                          "{ATI, SB600},"
115                          "{ATI, RS600},"
116                          "{ATI, RS690},"
117                          "{ATI, RS780},"
118                          "{ATI, R600},"
119                          "{ATI, RV630},"
120                          "{ATI, RV610},"
121                          "{ATI, RV670},"
122                          "{ATI, RV635},"
123                          "{ATI, RV620},"
124                          "{ATI, RV770},"
125                          "{VIA, VT8251},"
126                          "{VIA, VT8237A},"
127                          "{SiS, SIS966},"
128                          "{ULI, M5461}}");
129 MODULE_DESCRIPTION("Intel HDA driver");
130
131 #define SFX     "hda-intel: "
132
133
134 /*
135  * registers
136  */
137 #define ICH6_REG_GCAP                   0x00
138 #define ICH6_REG_VMIN                   0x02
139 #define ICH6_REG_VMAJ                   0x03
140 #define ICH6_REG_OUTPAY                 0x04
141 #define ICH6_REG_INPAY                  0x06
142 #define ICH6_REG_GCTL                   0x08
143 #define ICH6_REG_WAKEEN                 0x0c
144 #define ICH6_REG_STATESTS               0x0e
145 #define ICH6_REG_GSTS                   0x10
146 #define ICH6_REG_INTCTL                 0x20
147 #define ICH6_REG_INTSTS                 0x24
148 #define ICH6_REG_WALCLK                 0x30
149 #define ICH6_REG_SYNC                   0x34    
150 #define ICH6_REG_CORBLBASE              0x40
151 #define ICH6_REG_CORBUBASE              0x44
152 #define ICH6_REG_CORBWP                 0x48
153 #define ICH6_REG_CORBRP                 0x4A
154 #define ICH6_REG_CORBCTL                0x4c
155 #define ICH6_REG_CORBSTS                0x4d
156 #define ICH6_REG_CORBSIZE               0x4e
157
158 #define ICH6_REG_RIRBLBASE              0x50
159 #define ICH6_REG_RIRBUBASE              0x54
160 #define ICH6_REG_RIRBWP                 0x58
161 #define ICH6_REG_RINTCNT                0x5a
162 #define ICH6_REG_RIRBCTL                0x5c
163 #define ICH6_REG_RIRBSTS                0x5d
164 #define ICH6_REG_RIRBSIZE               0x5e
165
166 #define ICH6_REG_IC                     0x60
167 #define ICH6_REG_IR                     0x64
168 #define ICH6_REG_IRS                    0x68
169 #define   ICH6_IRS_VALID        (1<<1)
170 #define   ICH6_IRS_BUSY         (1<<0)
171
172 #define ICH6_REG_DPLBASE                0x70
173 #define ICH6_REG_DPUBASE                0x74
174 #define   ICH6_DPLBASE_ENABLE   0x1     /* Enable position buffer */
175
176 /* SD offset: SDI0=0x80, SDI1=0xa0, ... SDO3=0x160 */
177 enum { SDI0, SDI1, SDI2, SDI3, SDO0, SDO1, SDO2, SDO3 };
178
179 /* stream register offsets from stream base */
180 #define ICH6_REG_SD_CTL                 0x00
181 #define ICH6_REG_SD_STS                 0x03
182 #define ICH6_REG_SD_LPIB                0x04
183 #define ICH6_REG_SD_CBL                 0x08
184 #define ICH6_REG_SD_LVI                 0x0c
185 #define ICH6_REG_SD_FIFOW               0x0e
186 #define ICH6_REG_SD_FIFOSIZE            0x10
187 #define ICH6_REG_SD_FORMAT              0x12
188 #define ICH6_REG_SD_BDLPL               0x18
189 #define ICH6_REG_SD_BDLPU               0x1c
190
191 /* PCI space */
192 #define ICH6_PCIREG_TCSEL       0x44
193
194 /*
195  * other constants
196  */
197
198 /* max number of SDs */
199 /* ICH, ATI and VIA have 4 playback and 4 capture */
200 #define ICH6_NUM_CAPTURE        4
201 #define ICH6_NUM_PLAYBACK       4
202
203 /* ULI has 6 playback and 5 capture */
204 #define ULI_NUM_CAPTURE         5
205 #define ULI_NUM_PLAYBACK        6
206
207 /* ATI HDMI has 1 playback and 0 capture */
208 #define ATIHDMI_NUM_CAPTURE     0
209 #define ATIHDMI_NUM_PLAYBACK    1
210
211 /* TERA has 4 playback and 3 capture */
212 #define TERA_NUM_CAPTURE        3
213 #define TERA_NUM_PLAYBACK       4
214
215 /* this number is statically defined for simplicity */
216 #define MAX_AZX_DEV             16
217
218 /* max number of fragments - we may use more if allocating more pages for BDL */
219 #define BDL_SIZE                4096
220 #define AZX_MAX_BDL_ENTRIES     (BDL_SIZE / 16)
221 #define AZX_MAX_FRAG            32
222 /* max buffer size - no h/w limit, you can increase as you like */
223 #define AZX_MAX_BUF_SIZE        (1024*1024*1024)
224 /* max number of PCM devics per card */
225 #define AZX_MAX_PCMS            8
226
227 /* RIRB int mask: overrun[2], response[0] */
228 #define RIRB_INT_RESPONSE       0x01
229 #define RIRB_INT_OVERRUN        0x04
230 #define RIRB_INT_MASK           0x05
231
232 /* STATESTS int mask: S3,SD2,SD1,SD0 */
233 #define AZX_MAX_CODECS          4
234 #define STATESTS_INT_MASK       0x0f
235
236 /* SD_CTL bits */
237 #define SD_CTL_STREAM_RESET     0x01    /* stream reset bit */
238 #define SD_CTL_DMA_START        0x02    /* stream DMA start bit */
239 #define SD_CTL_STRIPE           (3 << 16)       /* stripe control */
240 #define SD_CTL_TRAFFIC_PRIO     (1 << 18)       /* traffic priority */
241 #define SD_CTL_DIR              (1 << 19)       /* bi-directional stream */
242 #define SD_CTL_STREAM_TAG_MASK  (0xf << 20)
243 #define SD_CTL_STREAM_TAG_SHIFT 20
244
245 /* SD_CTL and SD_STS */
246 #define SD_INT_DESC_ERR         0x10    /* descriptor error interrupt */
247 #define SD_INT_FIFO_ERR         0x08    /* FIFO error interrupt */
248 #define SD_INT_COMPLETE         0x04    /* completion interrupt */
249 #define SD_INT_MASK             (SD_INT_DESC_ERR|SD_INT_FIFO_ERR|\
250                                  SD_INT_COMPLETE)
251
252 /* SD_STS */
253 #define SD_STS_FIFO_READY       0x20    /* FIFO ready */
254
255 /* INTCTL and INTSTS */
256 #define ICH6_INT_ALL_STREAM     0xff       /* all stream interrupts */
257 #define ICH6_INT_CTRL_EN        0x40000000 /* controller interrupt enable bit */
258 #define ICH6_INT_GLOBAL_EN      0x80000000 /* global interrupt enable bit */
259
260 /* GCTL unsolicited response enable bit */
261 #define ICH6_GCTL_UREN          (1<<8)
262
263 /* GCTL reset bit */
264 #define ICH6_GCTL_RESET         (1<<0)
265
266 /* CORB/RIRB control, read/write pointer */
267 #define ICH6_RBCTL_DMA_EN       0x02    /* enable DMA */
268 #define ICH6_RBCTL_IRQ_EN       0x01    /* enable IRQ */
269 #define ICH6_RBRWP_CLR          0x8000  /* read/write pointer clear */
270 /* below are so far hardcoded - should read registers in future */
271 #define ICH6_MAX_CORB_ENTRIES   256
272 #define ICH6_MAX_RIRB_ENTRIES   256
273
274 /* position fix mode */
275 enum {
276         POS_FIX_AUTO,
277         POS_FIX_LPIB,
278         POS_FIX_POSBUF,
279 };
280
281 /* Defines for ATI HD Audio support in SB450 south bridge */
282 #define ATI_SB450_HDAUDIO_MISC_CNTR2_ADDR   0x42
283 #define ATI_SB450_HDAUDIO_ENABLE_SNOOP      0x02
284
285 /* Defines for Nvidia HDA support */
286 #define NVIDIA_HDA_TRANSREG_ADDR      0x4e
287 #define NVIDIA_HDA_ENABLE_COHBITS     0x0f
288 #define NVIDIA_HDA_ISTRM_COH          0x4d
289 #define NVIDIA_HDA_OSTRM_COH          0x4c
290 #define NVIDIA_HDA_ENABLE_COHBIT      0x01
291
292 /* Defines for Intel SCH HDA snoop control */
293 #define INTEL_SCH_HDA_DEVC      0x78
294 #define INTEL_SCH_HDA_DEVC_NOSNOOP       (0x1<<11)
295
296 /* Define IN stream 0 FIFO size offset in VIA controller */
297 #define VIA_IN_STREAM0_FIFO_SIZE_OFFSET 0x90
298 /* Define VIA HD Audio Device ID*/
299 #define VIA_HDAC_DEVICE_ID              0x3288
300
301 /* HD Audio class code */
302 #define PCI_CLASS_MULTIMEDIA_HD_AUDIO   0x0403
303
304 /*
305  */
306
307 struct azx_dev {
308         struct snd_dma_buffer bdl; /* BDL buffer */
309         u32 *posbuf;            /* position buffer pointer */
310
311         unsigned int bufsize;   /* size of the play buffer in bytes */
312         unsigned int period_bytes; /* size of the period in bytes */
313         unsigned int frags;     /* number for period in the play buffer */
314         unsigned int fifo_size; /* FIFO size */
315
316         void __iomem *sd_addr;  /* stream descriptor pointer */
317
318         u32 sd_int_sta_mask;    /* stream int status mask */
319
320         /* pcm support */
321         struct snd_pcm_substream *substream;    /* assigned substream,
322                                                  * set in PCM open
323                                                  */
324         unsigned int format_val;        /* format value to be set in the
325                                          * controller and the codec
326                                          */
327         unsigned char stream_tag;       /* assigned stream */
328         unsigned char index;            /* stream index */
329
330         unsigned int opened :1;
331         unsigned int running :1;
332         unsigned int irq_pending :1;
333         unsigned int irq_ignore :1;
334         /*
335          * For VIA:
336          *  A flag to ensure DMA position is 0
337          *  when link position is not greater than FIFO size
338          */
339         unsigned int insufficient :1;
340 };
341
342 /* CORB/RIRB */
343 struct azx_rb {
344         u32 *buf;               /* CORB/RIRB buffer
345                                  * Each CORB entry is 4byte, RIRB is 8byte
346                                  */
347         dma_addr_t addr;        /* physical address of CORB/RIRB buffer */
348         /* for RIRB */
349         unsigned short rp, wp;  /* read/write pointers */
350         int cmds;               /* number of pending requests */
351         u32 res;                /* last read value */
352 };
353
354 struct azx {
355         struct snd_card *card;
356         struct pci_dev *pci;
357         int dev_index;
358
359         /* chip type specific */
360         int driver_type;
361         int playback_streams;
362         int playback_index_offset;
363         int capture_streams;
364         int capture_index_offset;
365         int num_streams;
366
367         /* pci resources */
368         unsigned long addr;
369         void __iomem *remap_addr;
370         int irq;
371
372         /* locks */
373         spinlock_t reg_lock;
374         struct mutex open_mutex;
375
376         /* streams (x num_streams) */
377         struct azx_dev *azx_dev;
378
379         /* PCM */
380         struct snd_pcm *pcm[AZX_MAX_PCMS];
381
382         /* HD codec */
383         unsigned short codec_mask;
384         struct hda_bus *bus;
385
386         /* CORB/RIRB */
387         struct azx_rb corb;
388         struct azx_rb rirb;
389
390         /* CORB/RIRB and position buffers */
391         struct snd_dma_buffer rb;
392         struct snd_dma_buffer posbuf;
393
394         /* flags */
395         int position_fix;
396         unsigned int running :1;
397         unsigned int initialized :1;
398         unsigned int single_cmd :1;
399         unsigned int polling_mode :1;
400         unsigned int msi :1;
401         unsigned int irq_pending_warned :1;
402         unsigned int via_dmapos_patch :1; /* enable DMA-position fix for VIA */
403         unsigned int probing :1; /* codec probing phase */
404
405         /* for debugging */
406         unsigned int last_cmd;  /* last issued command (to sync) */
407
408         /* for pending irqs */
409         struct work_struct irq_pending_work;
410
411         /* reboot notifier (for mysterious hangup problem at power-down) */
412         struct notifier_block reboot_notifier;
413 };
414
415 /* driver types */
416 enum {
417         AZX_DRIVER_ICH,
418         AZX_DRIVER_SCH,
419         AZX_DRIVER_ATI,
420         AZX_DRIVER_ATIHDMI,
421         AZX_DRIVER_VIA,
422         AZX_DRIVER_SIS,
423         AZX_DRIVER_ULI,
424         AZX_DRIVER_NVIDIA,
425         AZX_DRIVER_TERA,
426         AZX_DRIVER_GENERIC,
427         AZX_NUM_DRIVERS, /* keep this as last entry */
428 };
429
430 static char *driver_short_names[] __devinitdata = {
431         [AZX_DRIVER_ICH] = "HDA Intel",
432         [AZX_DRIVER_SCH] = "HDA Intel MID",
433         [AZX_DRIVER_ATI] = "HDA ATI SB",
434         [AZX_DRIVER_ATIHDMI] = "HDA ATI HDMI",
435         [AZX_DRIVER_VIA] = "HDA VIA VT82xx",
436         [AZX_DRIVER_SIS] = "HDA SIS966",
437         [AZX_DRIVER_ULI] = "HDA ULI M5461",
438         [AZX_DRIVER_NVIDIA] = "HDA NVidia",
439         [AZX_DRIVER_TERA] = "HDA Teradici", 
440         [AZX_DRIVER_GENERIC] = "HD-Audio Generic",
441 };
442
443 /*
444  * macros for easy use
445  */
446 #define azx_writel(chip,reg,value) \
447         writel(value, (chip)->remap_addr + ICH6_REG_##reg)
448 #define azx_readl(chip,reg) \
449         readl((chip)->remap_addr + ICH6_REG_##reg)
450 #define azx_writew(chip,reg,value) \
451         writew(value, (chip)->remap_addr + ICH6_REG_##reg)
452 #define azx_readw(chip,reg) \
453         readw((chip)->remap_addr + ICH6_REG_##reg)
454 #define azx_writeb(chip,reg,value) \
455         writeb(value, (chip)->remap_addr + ICH6_REG_##reg)
456 #define azx_readb(chip,reg) \
457         readb((chip)->remap_addr + ICH6_REG_##reg)
458
459 #define azx_sd_writel(dev,reg,value) \
460         writel(value, (dev)->sd_addr + ICH6_REG_##reg)
461 #define azx_sd_readl(dev,reg) \
462         readl((dev)->sd_addr + ICH6_REG_##reg)
463 #define azx_sd_writew(dev,reg,value) \
464         writew(value, (dev)->sd_addr + ICH6_REG_##reg)
465 #define azx_sd_readw(dev,reg) \
466         readw((dev)->sd_addr + ICH6_REG_##reg)
467 #define azx_sd_writeb(dev,reg,value) \
468         writeb(value, (dev)->sd_addr + ICH6_REG_##reg)
469 #define azx_sd_readb(dev,reg) \
470         readb((dev)->sd_addr + ICH6_REG_##reg)
471
472 /* for pcm support */
473 #define get_azx_dev(substream) (substream->runtime->private_data)
474
475 static int azx_acquire_irq(struct azx *chip, int do_disconnect);
476
477 /*
478  * Interface for HD codec
479  */
480
481 /*
482  * CORB / RIRB interface
483  */
484 static int azx_alloc_cmd_io(struct azx *chip)
485 {
486         int err;
487
488         /* single page (at least 4096 bytes) must suffice for both ringbuffes */
489         err = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV,
490                                   snd_dma_pci_data(chip->pci),
491                                   PAGE_SIZE, &chip->rb);
492         if (err < 0) {
493                 snd_printk(KERN_ERR SFX "cannot allocate CORB/RIRB\n");
494                 return err;
495         }
496         return 0;
497 }
498
499 static void azx_init_cmd_io(struct azx *chip)
500 {
501         /* CORB set up */
502         chip->corb.addr = chip->rb.addr;
503         chip->corb.buf = (u32 *)chip->rb.area;
504         azx_writel(chip, CORBLBASE, (u32)chip->corb.addr);
505         azx_writel(chip, CORBUBASE, upper_32_bits(chip->corb.addr));
506
507         /* set the corb size to 256 entries (ULI requires explicitly) */
508         azx_writeb(chip, CORBSIZE, 0x02);
509         /* set the corb write pointer to 0 */
510         azx_writew(chip, CORBWP, 0);
511         /* reset the corb hw read pointer */
512         azx_writew(chip, CORBRP, ICH6_RBRWP_CLR);
513         /* enable corb dma */
514         azx_writeb(chip, CORBCTL, ICH6_RBCTL_DMA_EN);
515
516         /* RIRB set up */
517         chip->rirb.addr = chip->rb.addr + 2048;
518         chip->rirb.buf = (u32 *)(chip->rb.area + 2048);
519         azx_writel(chip, RIRBLBASE, (u32)chip->rirb.addr);
520         azx_writel(chip, RIRBUBASE, upper_32_bits(chip->rirb.addr));
521
522         /* set the rirb size to 256 entries (ULI requires explicitly) */
523         azx_writeb(chip, RIRBSIZE, 0x02);
524         /* reset the rirb hw write pointer */
525         azx_writew(chip, RIRBWP, ICH6_RBRWP_CLR);
526         /* set N=1, get RIRB response interrupt for new entry */
527         azx_writew(chip, RINTCNT, 1);
528         /* enable rirb dma and response irq */
529         azx_writeb(chip, RIRBCTL, ICH6_RBCTL_DMA_EN | ICH6_RBCTL_IRQ_EN);
530         chip->rirb.rp = chip->rirb.cmds = 0;
531 }
532
533 static void azx_free_cmd_io(struct azx *chip)
534 {
535         /* disable ringbuffer DMAs */
536         azx_writeb(chip, RIRBCTL, 0);
537         azx_writeb(chip, CORBCTL, 0);
538 }
539
540 /* send a command */
541 static int azx_corb_send_cmd(struct hda_bus *bus, u32 val)
542 {
543         struct azx *chip = bus->private_data;
544         unsigned int wp;
545
546         /* add command to corb */
547         wp = azx_readb(chip, CORBWP);
548         wp++;
549         wp %= ICH6_MAX_CORB_ENTRIES;
550
551         spin_lock_irq(&chip->reg_lock);
552         chip->rirb.cmds++;
553         chip->corb.buf[wp] = cpu_to_le32(val);
554         azx_writel(chip, CORBWP, wp);
555         spin_unlock_irq(&chip->reg_lock);
556
557         return 0;
558 }
559
560 #define ICH6_RIRB_EX_UNSOL_EV   (1<<4)
561
562 /* retrieve RIRB entry - called from interrupt handler */
563 static void azx_update_rirb(struct azx *chip)
564 {
565         unsigned int rp, wp;
566         u32 res, res_ex;
567
568         wp = azx_readb(chip, RIRBWP);
569         if (wp == chip->rirb.wp)
570                 return;
571         chip->rirb.wp = wp;
572                 
573         while (chip->rirb.rp != wp) {
574                 chip->rirb.rp++;
575                 chip->rirb.rp %= ICH6_MAX_RIRB_ENTRIES;
576
577                 rp = chip->rirb.rp << 1; /* an RIRB entry is 8-bytes */
578                 res_ex = le32_to_cpu(chip->rirb.buf[rp + 1]);
579                 res = le32_to_cpu(chip->rirb.buf[rp]);
580                 if (res_ex & ICH6_RIRB_EX_UNSOL_EV)
581                         snd_hda_queue_unsol_event(chip->bus, res, res_ex);
582                 else if (chip->rirb.cmds) {
583                         chip->rirb.res = res;
584                         smp_wmb();
585                         chip->rirb.cmds--;
586                 }
587         }
588 }
589
590 /* receive a response */
591 static unsigned int azx_rirb_get_response(struct hda_bus *bus)
592 {
593         struct azx *chip = bus->private_data;
594         unsigned long timeout;
595
596  again:
597         timeout = jiffies + msecs_to_jiffies(1000);
598         for (;;) {
599                 if (chip->polling_mode) {
600                         spin_lock_irq(&chip->reg_lock);
601                         azx_update_rirb(chip);
602                         spin_unlock_irq(&chip->reg_lock);
603                 }
604                 if (!chip->rirb.cmds) {
605                         smp_rmb();
606                         return chip->rirb.res; /* the last value */
607                 }
608                 if (time_after(jiffies, timeout))
609                         break;
610                 if (bus->needs_damn_long_delay)
611                         msleep(2); /* temporary workaround */
612                 else {
613                         udelay(10);
614                         cond_resched();
615                 }
616         }
617
618         if (chip->msi) {
619                 snd_printk(KERN_WARNING "hda_intel: No response from codec, "
620                            "disabling MSI: last cmd=0x%08x\n", chip->last_cmd);
621                 free_irq(chip->irq, chip);
622                 chip->irq = -1;
623                 pci_disable_msi(chip->pci);
624                 chip->msi = 0;
625                 if (azx_acquire_irq(chip, 1) < 0)
626                         return -1;
627                 goto again;
628         }
629
630         if (!chip->polling_mode) {
631                 snd_printk(KERN_WARNING "hda_intel: azx_get_response timeout, "
632                            "switching to polling mode: last cmd=0x%08x\n",
633                            chip->last_cmd);
634                 chip->polling_mode = 1;
635                 goto again;
636         }
637
638         if (chip->probing) {
639                 /* If this critical timeout happens during the codec probing
640                  * phase, this is likely an access to a non-existing codec
641                  * slot.  Better to return an error and reset the system.
642                  */
643                 return -1;
644         }
645
646         snd_printk(KERN_ERR "hda_intel: azx_get_response timeout, "
647                    "switching to single_cmd mode: last cmd=0x%08x\n",
648                    chip->last_cmd);
649         chip->rirb.rp = azx_readb(chip, RIRBWP);
650         chip->rirb.cmds = 0;
651         /* switch to single_cmd mode */
652         chip->single_cmd = 1;
653         azx_free_cmd_io(chip);
654         return -1;
655 }
656
657 /*
658  * Use the single immediate command instead of CORB/RIRB for simplicity
659  *
660  * Note: according to Intel, this is not preferred use.  The command was
661  *       intended for the BIOS only, and may get confused with unsolicited
662  *       responses.  So, we shouldn't use it for normal operation from the
663  *       driver.
664  *       I left the codes, however, for debugging/testing purposes.
665  */
666
667 /* send a command */
668 static int azx_single_send_cmd(struct hda_bus *bus, u32 val)
669 {
670         struct azx *chip = bus->private_data;
671         int timeout = 50;
672
673         while (timeout--) {
674                 /* check ICB busy bit */
675                 if (!((azx_readw(chip, IRS) & ICH6_IRS_BUSY))) {
676                         /* Clear IRV valid bit */
677                         azx_writew(chip, IRS, azx_readw(chip, IRS) |
678                                    ICH6_IRS_VALID);
679                         azx_writel(chip, IC, val);
680                         azx_writew(chip, IRS, azx_readw(chip, IRS) |
681                                    ICH6_IRS_BUSY);
682                         return 0;
683                 }
684                 udelay(1);
685         }
686         if (printk_ratelimit())
687                 snd_printd(SFX "send_cmd timeout: IRS=0x%x, val=0x%x\n",
688                            azx_readw(chip, IRS), val);
689         return -EIO;
690 }
691
692 /* receive a response */
693 static unsigned int azx_single_get_response(struct hda_bus *bus)
694 {
695         struct azx *chip = bus->private_data;
696         int timeout = 50;
697
698         while (timeout--) {
699                 /* check IRV busy bit */
700                 if (azx_readw(chip, IRS) & ICH6_IRS_VALID)
701                         return azx_readl(chip, IR);
702                 udelay(1);
703         }
704         if (printk_ratelimit())
705                 snd_printd(SFX "get_response timeout: IRS=0x%x\n",
706                            azx_readw(chip, IRS));
707         return (unsigned int)-1;
708 }
709
710 /*
711  * The below are the main callbacks from hda_codec.
712  *
713  * They are just the skeleton to call sub-callbacks according to the
714  * current setting of chip->single_cmd.
715  */
716
717 /* send a command */
718 static int azx_send_cmd(struct hda_bus *bus, unsigned int val)
719 {
720         struct azx *chip = bus->private_data;
721
722         chip->last_cmd = val;
723         if (chip->single_cmd)
724                 return azx_single_send_cmd(bus, val);
725         else
726                 return azx_corb_send_cmd(bus, val);
727 }
728
729 /* get a response */
730 static unsigned int azx_get_response(struct hda_bus *bus)
731 {
732         struct azx *chip = bus->private_data;
733         if (chip->single_cmd)
734                 return azx_single_get_response(bus);
735         else
736                 return azx_rirb_get_response(bus);
737 }
738
739 #ifdef CONFIG_SND_HDA_POWER_SAVE
740 static void azx_power_notify(struct hda_bus *bus);
741 #endif
742
743 /* reset codec link */
744 static int azx_reset(struct azx *chip)
745 {
746         int count;
747
748         /* clear STATESTS */
749         azx_writeb(chip, STATESTS, STATESTS_INT_MASK);
750
751         /* reset controller */
752         azx_writel(chip, GCTL, azx_readl(chip, GCTL) & ~ICH6_GCTL_RESET);
753
754         count = 50;
755         while (azx_readb(chip, GCTL) && --count)
756                 msleep(1);
757
758         /* delay for >= 100us for codec PLL to settle per spec
759          * Rev 0.9 section 5.5.1
760          */
761         msleep(1);
762
763         /* Bring controller out of reset */
764         azx_writeb(chip, GCTL, azx_readb(chip, GCTL) | ICH6_GCTL_RESET);
765
766         count = 50;
767         while (!azx_readb(chip, GCTL) && --count)
768                 msleep(1);
769
770         /* Brent Chartrand said to wait >= 540us for codecs to initialize */
771         msleep(1);
772
773         /* check to see if controller is ready */
774         if (!azx_readb(chip, GCTL)) {
775                 snd_printd("azx_reset: controller not ready!\n");
776                 return -EBUSY;
777         }
778
779         /* Accept unsolicited responses */
780         azx_writel(chip, GCTL, azx_readl(chip, GCTL) | ICH6_GCTL_UREN);
781
782         /* detect codecs */
783         if (!chip->codec_mask) {
784                 chip->codec_mask = azx_readw(chip, STATESTS);
785                 snd_printdd("codec_mask = 0x%x\n", chip->codec_mask);
786         }
787
788         return 0;
789 }
790
791
792 /*
793  * Lowlevel interface
794  */  
795
796 /* enable interrupts */
797 static void azx_int_enable(struct azx *chip)
798 {
799         /* enable controller CIE and GIE */
800         azx_writel(chip, INTCTL, azx_readl(chip, INTCTL) |
801                    ICH6_INT_CTRL_EN | ICH6_INT_GLOBAL_EN);
802 }
803
804 /* disable interrupts */
805 static void azx_int_disable(struct azx *chip)
806 {
807         int i;
808
809         /* disable interrupts in stream descriptor */
810         for (i = 0; i < chip->num_streams; i++) {
811                 struct azx_dev *azx_dev = &chip->azx_dev[i];
812                 azx_sd_writeb(azx_dev, SD_CTL,
813                               azx_sd_readb(azx_dev, SD_CTL) & ~SD_INT_MASK);
814         }
815
816         /* disable SIE for all streams */
817         azx_writeb(chip, INTCTL, 0);
818
819         /* disable controller CIE and GIE */
820         azx_writel(chip, INTCTL, azx_readl(chip, INTCTL) &
821                    ~(ICH6_INT_CTRL_EN | ICH6_INT_GLOBAL_EN));
822 }
823
824 /* clear interrupts */
825 static void azx_int_clear(struct azx *chip)
826 {
827         int i;
828
829         /* clear stream status */
830         for (i = 0; i < chip->num_streams; i++) {
831                 struct azx_dev *azx_dev = &chip->azx_dev[i];
832                 azx_sd_writeb(azx_dev, SD_STS, SD_INT_MASK);
833         }
834
835         /* clear STATESTS */
836         azx_writeb(chip, STATESTS, STATESTS_INT_MASK);
837
838         /* clear rirb status */
839         azx_writeb(chip, RIRBSTS, RIRB_INT_MASK);
840
841         /* clear int status */
842         azx_writel(chip, INTSTS, ICH6_INT_CTRL_EN | ICH6_INT_ALL_STREAM);
843 }
844
845 /* start a stream */
846 static void azx_stream_start(struct azx *chip, struct azx_dev *azx_dev)
847 {
848         /*
849          * Before stream start, initialize parameter
850          */
851         azx_dev->insufficient = 1;
852
853         /* enable SIE */
854         azx_writeb(chip, INTCTL,
855                    azx_readb(chip, INTCTL) | (1 << azx_dev->index));
856         /* set DMA start and interrupt mask */
857         azx_sd_writeb(azx_dev, SD_CTL, azx_sd_readb(azx_dev, SD_CTL) |
858                       SD_CTL_DMA_START | SD_INT_MASK);
859 }
860
861 /* stop a stream */
862 static void azx_stream_stop(struct azx *chip, struct azx_dev *azx_dev)
863 {
864         /* stop DMA */
865         azx_sd_writeb(azx_dev, SD_CTL, azx_sd_readb(azx_dev, SD_CTL) &
866                       ~(SD_CTL_DMA_START | SD_INT_MASK));
867         azx_sd_writeb(azx_dev, SD_STS, SD_INT_MASK); /* to be sure */
868         /* disable SIE */
869         azx_writeb(chip, INTCTL,
870                    azx_readb(chip, INTCTL) & ~(1 << azx_dev->index));
871 }
872
873
874 /*
875  * reset and start the controller registers
876  */
877 static void azx_init_chip(struct azx *chip)
878 {
879         if (chip->initialized)
880                 return;
881
882         /* reset controller */
883         azx_reset(chip);
884
885         /* initialize interrupts */
886         azx_int_clear(chip);
887         azx_int_enable(chip);
888
889         /* initialize the codec command I/O */
890         if (!chip->single_cmd)
891                 azx_init_cmd_io(chip);
892
893         /* program the position buffer */
894         azx_writel(chip, DPLBASE, (u32)chip->posbuf.addr);
895         azx_writel(chip, DPUBASE, upper_32_bits(chip->posbuf.addr));
896
897         chip->initialized = 1;
898 }
899
900 /*
901  * initialize the PCI registers
902  */
903 /* update bits in a PCI register byte */
904 static void update_pci_byte(struct pci_dev *pci, unsigned int reg,
905                             unsigned char mask, unsigned char val)
906 {
907         unsigned char data;
908
909         pci_read_config_byte(pci, reg, &data);
910         data &= ~mask;
911         data |= (val & mask);
912         pci_write_config_byte(pci, reg, data);
913 }
914
915 static void azx_init_pci(struct azx *chip)
916 {
917         unsigned short snoop;
918
919         /* Clear bits 0-2 of PCI register TCSEL (at offset 0x44)
920          * TCSEL == Traffic Class Select Register, which sets PCI express QOS
921          * Ensuring these bits are 0 clears playback static on some HD Audio
922          * codecs
923          */
924         update_pci_byte(chip->pci, ICH6_PCIREG_TCSEL, 0x07, 0);
925
926         switch (chip->driver_type) {
927         case AZX_DRIVER_ATI:
928                 /* For ATI SB450 azalia HD audio, we need to enable snoop */
929                 update_pci_byte(chip->pci,
930                                 ATI_SB450_HDAUDIO_MISC_CNTR2_ADDR, 
931                                 0x07, ATI_SB450_HDAUDIO_ENABLE_SNOOP);
932                 break;
933         case AZX_DRIVER_NVIDIA:
934                 /* For NVIDIA HDA, enable snoop */
935                 update_pci_byte(chip->pci,
936                                 NVIDIA_HDA_TRANSREG_ADDR,
937                                 0x0f, NVIDIA_HDA_ENABLE_COHBITS);
938                 update_pci_byte(chip->pci,
939                                 NVIDIA_HDA_ISTRM_COH,
940                                 0x01, NVIDIA_HDA_ENABLE_COHBIT);
941                 update_pci_byte(chip->pci,
942                                 NVIDIA_HDA_OSTRM_COH,
943                                 0x01, NVIDIA_HDA_ENABLE_COHBIT);
944                 break;
945         case AZX_DRIVER_SCH:
946                 pci_read_config_word(chip->pci, INTEL_SCH_HDA_DEVC, &snoop);
947                 if (snoop & INTEL_SCH_HDA_DEVC_NOSNOOP) {
948                         pci_write_config_word(chip->pci, INTEL_SCH_HDA_DEVC, \
949                                 snoop & (~INTEL_SCH_HDA_DEVC_NOSNOOP));
950                         pci_read_config_word(chip->pci,
951                                 INTEL_SCH_HDA_DEVC, &snoop);
952                         snd_printdd("HDA snoop disabled, enabling ... %s\n",\
953                                 (snoop & INTEL_SCH_HDA_DEVC_NOSNOOP) \
954                                 ? "Failed" : "OK");
955                 }
956                 break;
957
958         }
959 }
960
961
962 static int azx_position_ok(struct azx *chip, struct azx_dev *azx_dev);
963
964 /*
965  * interrupt handler
966  */
967 static irqreturn_t azx_interrupt(int irq, void *dev_id)
968 {
969         struct azx *chip = dev_id;
970         struct azx_dev *azx_dev;
971         u32 status;
972         int i;
973
974         spin_lock(&chip->reg_lock);
975
976         status = azx_readl(chip, INTSTS);
977         if (status == 0) {
978                 spin_unlock(&chip->reg_lock);
979                 return IRQ_NONE;
980         }
981         
982         for (i = 0; i < chip->num_streams; i++) {
983                 azx_dev = &chip->azx_dev[i];
984                 if (status & azx_dev->sd_int_sta_mask) {
985                         azx_sd_writeb(azx_dev, SD_STS, SD_INT_MASK);
986                         if (!azx_dev->substream || !azx_dev->running)
987                                 continue;
988                         /* ignore the first dummy IRQ (due to pos_adj) */
989                         if (azx_dev->irq_ignore) {
990                                 azx_dev->irq_ignore = 0;
991                                 continue;
992                         }
993                         /* check whether this IRQ is really acceptable */
994                         if (azx_position_ok(chip, azx_dev)) {
995                                 azx_dev->irq_pending = 0;
996                                 spin_unlock(&chip->reg_lock);
997                                 snd_pcm_period_elapsed(azx_dev->substream);
998                                 spin_lock(&chip->reg_lock);
999                         } else if (chip->bus && chip->bus->workq) {
1000                                 /* bogus IRQ, process it later */
1001                                 azx_dev->irq_pending = 1;
1002                                 queue_work(chip->bus->workq,
1003                                            &chip->irq_pending_work);
1004                         }
1005                 }
1006         }
1007
1008         /* clear rirb int */
1009         status = azx_readb(chip, RIRBSTS);
1010         if (status & RIRB_INT_MASK) {
1011                 if (!chip->single_cmd && (status & RIRB_INT_RESPONSE))
1012                         azx_update_rirb(chip);
1013                 azx_writeb(chip, RIRBSTS, RIRB_INT_MASK);
1014         }
1015
1016 #if 0
1017         /* clear state status int */
1018         if (azx_readb(chip, STATESTS) & 0x04)
1019                 azx_writeb(chip, STATESTS, 0x04);
1020 #endif
1021         spin_unlock(&chip->reg_lock);
1022         
1023         return IRQ_HANDLED;
1024 }
1025
1026
1027 /*
1028  * set up a BDL entry
1029  */
1030 static int setup_bdle(struct snd_pcm_substream *substream,
1031                       struct azx_dev *azx_dev, u32 **bdlp,
1032                       int ofs, int size, int with_ioc)
1033 {
1034         u32 *bdl = *bdlp;
1035
1036         while (size > 0) {
1037                 dma_addr_t addr;
1038                 int chunk;
1039
1040                 if (azx_dev->frags >= AZX_MAX_BDL_ENTRIES)
1041                         return -EINVAL;
1042
1043                 addr = snd_pcm_sgbuf_get_addr(substream, ofs);
1044                 /* program the address field of the BDL entry */
1045                 bdl[0] = cpu_to_le32((u32)addr);
1046                 bdl[1] = cpu_to_le32(upper_32_bits(addr));
1047                 /* program the size field of the BDL entry */
1048                 chunk = snd_pcm_sgbuf_get_chunk_size(substream, ofs, size);
1049                 bdl[2] = cpu_to_le32(chunk);
1050                 /* program the IOC to enable interrupt
1051                  * only when the whole fragment is processed
1052                  */
1053                 size -= chunk;
1054                 bdl[3] = (size || !with_ioc) ? 0 : cpu_to_le32(0x01);
1055                 bdl += 4;
1056                 azx_dev->frags++;
1057                 ofs += chunk;
1058         }
1059         *bdlp = bdl;
1060         return ofs;
1061 }
1062
1063 /*
1064  * set up BDL entries
1065  */
1066 static int azx_setup_periods(struct azx *chip,
1067                              struct snd_pcm_substream *substream,
1068                              struct azx_dev *azx_dev)
1069 {
1070         u32 *bdl;
1071         int i, ofs, periods, period_bytes;
1072         int pos_adj;
1073
1074         /* reset BDL address */
1075         azx_sd_writel(azx_dev, SD_BDLPL, 0);
1076         azx_sd_writel(azx_dev, SD_BDLPU, 0);
1077
1078         period_bytes = snd_pcm_lib_period_bytes(substream);
1079         azx_dev->period_bytes = period_bytes;
1080         periods = azx_dev->bufsize / period_bytes;
1081
1082         /* program the initial BDL entries */
1083         bdl = (u32 *)azx_dev->bdl.area;
1084         ofs = 0;
1085         azx_dev->frags = 0;
1086         azx_dev->irq_ignore = 0;
1087         pos_adj = bdl_pos_adj[chip->dev_index];
1088         if (pos_adj > 0) {
1089                 struct snd_pcm_runtime *runtime = substream->runtime;
1090                 int pos_align = pos_adj;
1091                 pos_adj = (pos_adj * runtime->rate + 47999) / 48000;
1092                 if (!pos_adj)
1093                         pos_adj = pos_align;
1094                 else
1095                         pos_adj = ((pos_adj + pos_align - 1) / pos_align) *
1096                                 pos_align;
1097                 pos_adj = frames_to_bytes(runtime, pos_adj);
1098                 if (pos_adj >= period_bytes) {
1099                         snd_printk(KERN_WARNING "Too big adjustment %d\n",
1100                                    bdl_pos_adj[chip->dev_index]);
1101                         pos_adj = 0;
1102                 } else {
1103                         ofs = setup_bdle(substream, azx_dev,
1104                                          &bdl, ofs, pos_adj, 1);
1105                         if (ofs < 0)
1106                                 goto error;
1107                         azx_dev->irq_ignore = 1;
1108                 }
1109         } else
1110                 pos_adj = 0;
1111         for (i = 0; i < periods; i++) {
1112                 if (i == periods - 1 && pos_adj)
1113                         ofs = setup_bdle(substream, azx_dev, &bdl, ofs,
1114                                          period_bytes - pos_adj, 0);
1115                 else
1116                         ofs = setup_bdle(substream, azx_dev, &bdl, ofs,
1117                                          period_bytes, 1);
1118                 if (ofs < 0)
1119                         goto error;
1120         }
1121         return 0;
1122
1123  error:
1124         snd_printk(KERN_ERR "Too many BDL entries: buffer=%d, period=%d\n",
1125                    azx_dev->bufsize, period_bytes);
1126         /* reset */
1127         azx_sd_writel(azx_dev, SD_BDLPL, 0);
1128         azx_sd_writel(azx_dev, SD_BDLPU, 0);
1129         return -EINVAL;
1130 }
1131
1132 /*
1133  * set up the SD for streaming
1134  */
1135 static int azx_setup_controller(struct azx *chip, struct azx_dev *azx_dev)
1136 {
1137         unsigned char val;
1138         int timeout;
1139
1140         /* make sure the run bit is zero for SD */
1141         azx_sd_writeb(azx_dev, SD_CTL, azx_sd_readb(azx_dev, SD_CTL) &
1142                       ~SD_CTL_DMA_START);
1143         /* reset stream */
1144         azx_sd_writeb(azx_dev, SD_CTL, azx_sd_readb(azx_dev, SD_CTL) |
1145                       SD_CTL_STREAM_RESET);
1146         udelay(3);
1147         timeout = 300;
1148         while (!((val = azx_sd_readb(azx_dev, SD_CTL)) & SD_CTL_STREAM_RESET) &&
1149                --timeout)
1150                 ;
1151         val &= ~SD_CTL_STREAM_RESET;
1152         azx_sd_writeb(azx_dev, SD_CTL, val);
1153         udelay(3);
1154
1155         timeout = 300;
1156         /* waiting for hardware to report that the stream is out of reset */
1157         while (((val = azx_sd_readb(azx_dev, SD_CTL)) & SD_CTL_STREAM_RESET) &&
1158                --timeout)
1159                 ;
1160
1161         /* program the stream_tag */
1162         azx_sd_writel(azx_dev, SD_CTL,
1163                       (azx_sd_readl(azx_dev, SD_CTL) & ~SD_CTL_STREAM_TAG_MASK)|
1164                       (azx_dev->stream_tag << SD_CTL_STREAM_TAG_SHIFT));
1165
1166         /* program the length of samples in cyclic buffer */
1167         azx_sd_writel(azx_dev, SD_CBL, azx_dev->bufsize);
1168
1169         /* program the stream format */
1170         /* this value needs to be the same as the one programmed */
1171         azx_sd_writew(azx_dev, SD_FORMAT, azx_dev->format_val);
1172
1173         /* program the stream LVI (last valid index) of the BDL */
1174         azx_sd_writew(azx_dev, SD_LVI, azx_dev->frags - 1);
1175
1176         /* program the BDL address */
1177         /* lower BDL address */
1178         azx_sd_writel(azx_dev, SD_BDLPL, (u32)azx_dev->bdl.addr);
1179         /* upper BDL address */
1180         azx_sd_writel(azx_dev, SD_BDLPU, upper_32_bits(azx_dev->bdl.addr));
1181
1182         /* enable the position buffer */
1183         if (chip->position_fix == POS_FIX_POSBUF ||
1184             chip->position_fix == POS_FIX_AUTO ||
1185             chip->via_dmapos_patch) {
1186                 if (!(azx_readl(chip, DPLBASE) & ICH6_DPLBASE_ENABLE))
1187                         azx_writel(chip, DPLBASE,
1188                                 (u32)chip->posbuf.addr | ICH6_DPLBASE_ENABLE);
1189         }
1190
1191         /* set the interrupt enable bits in the descriptor control register */
1192         azx_sd_writel(azx_dev, SD_CTL,
1193                       azx_sd_readl(azx_dev, SD_CTL) | SD_INT_MASK);
1194
1195         return 0;
1196 }
1197
1198 /*
1199  * Probe the given codec address
1200  */
1201 static int probe_codec(struct azx *chip, int addr)
1202 {
1203         unsigned int cmd = (addr << 28) | (AC_NODE_ROOT << 20) |
1204                 (AC_VERB_PARAMETERS << 8) | AC_PAR_VENDOR_ID;
1205         unsigned int res;
1206
1207         chip->probing = 1;
1208         azx_send_cmd(chip->bus, cmd);
1209         res = azx_get_response(chip->bus);
1210         chip->probing = 0;
1211         if (res == -1)
1212                 return -EIO;
1213         snd_printdd("hda_intel: codec #%d probed OK\n", addr);
1214         return 0;
1215 }
1216
1217 static int azx_attach_pcm_stream(struct hda_bus *bus, struct hda_codec *codec,
1218                                  struct hda_pcm *cpcm);
1219 static void azx_stop_chip(struct azx *chip);
1220
1221 /*
1222  * Codec initialization
1223  */
1224
1225 /* number of codec slots for each chipset: 0 = default slots (i.e. 4) */
1226 static unsigned int azx_max_codecs[AZX_NUM_DRIVERS] __devinitdata = {
1227         [AZX_DRIVER_TERA] = 1,
1228 };
1229
1230 static int __devinit azx_codec_create(struct azx *chip, const char *model,
1231                                       unsigned int codec_probe_mask,
1232                                       int no_init)
1233 {
1234         struct hda_bus_template bus_temp;
1235         int c, codecs, err;
1236         int max_slots;
1237
1238         memset(&bus_temp, 0, sizeof(bus_temp));
1239         bus_temp.private_data = chip;
1240         bus_temp.modelname = model;
1241         bus_temp.pci = chip->pci;
1242         bus_temp.ops.command = azx_send_cmd;
1243         bus_temp.ops.get_response = azx_get_response;
1244         bus_temp.ops.attach_pcm = azx_attach_pcm_stream;
1245 #ifdef CONFIG_SND_HDA_POWER_SAVE
1246         bus_temp.power_save = &power_save;
1247         bus_temp.ops.pm_notify = azx_power_notify;
1248 #endif
1249
1250         err = snd_hda_bus_new(chip->card, &bus_temp, &chip->bus);
1251         if (err < 0)
1252                 return err;
1253
1254         if (chip->driver_type == AZX_DRIVER_NVIDIA)
1255                 chip->bus->needs_damn_long_delay = 1;
1256
1257         codecs = 0;
1258         max_slots = azx_max_codecs[chip->driver_type];
1259         if (!max_slots)
1260                 max_slots = AZX_MAX_CODECS;
1261
1262         /* First try to probe all given codec slots */
1263         for (c = 0; c < max_slots; c++) {
1264                 if ((chip->codec_mask & (1 << c)) & codec_probe_mask) {
1265                         if (probe_codec(chip, c) < 0) {
1266                                 /* Some BIOSen give you wrong codec addresses
1267                                  * that don't exist
1268                                  */
1269                                 snd_printk(KERN_WARNING
1270                                            "hda_intel: Codec #%d probe error; "
1271                                            "disabling it...\n", c);
1272                                 chip->codec_mask &= ~(1 << c);
1273                                 /* More badly, accessing to a non-existing
1274                                  * codec often screws up the controller chip,
1275                                  * and distrubs the further communications.
1276                                  * Thus if an error occurs during probing,
1277                                  * better to reset the controller chip to
1278                                  * get back to the sanity state.
1279                                  */
1280                                 azx_stop_chip(chip);
1281                                 azx_init_chip(chip);
1282                         }
1283                 }
1284         }
1285
1286         /* Then create codec instances */
1287         for (c = 0; c < max_slots; c++) {
1288                 if ((chip->codec_mask & (1 << c)) & codec_probe_mask) {
1289                         struct hda_codec *codec;
1290                         err = snd_hda_codec_new(chip->bus, c, !no_init, &codec);
1291                         if (err < 0)
1292                                 continue;
1293                         codecs++;
1294                 }
1295         }
1296         if (!codecs) {
1297                 snd_printk(KERN_ERR SFX "no codecs initialized\n");
1298                 return -ENXIO;
1299         }
1300
1301         return 0;
1302 }
1303
1304
1305 /*
1306  * PCM support
1307  */
1308
1309 /* assign a stream for the PCM */
1310 static inline struct azx_dev *azx_assign_device(struct azx *chip, int stream)
1311 {
1312         int dev, i, nums;
1313         if (stream == SNDRV_PCM_STREAM_PLAYBACK) {
1314                 dev = chip->playback_index_offset;
1315                 nums = chip->playback_streams;
1316         } else {
1317                 dev = chip->capture_index_offset;
1318                 nums = chip->capture_streams;
1319         }
1320         for (i = 0; i < nums; i++, dev++)
1321                 if (!chip->azx_dev[dev].opened) {
1322                         chip->azx_dev[dev].opened = 1;
1323                         return &chip->azx_dev[dev];
1324                 }
1325         return NULL;
1326 }
1327
1328 /* release the assigned stream */
1329 static inline void azx_release_device(struct azx_dev *azx_dev)
1330 {
1331         azx_dev->opened = 0;
1332 }
1333
1334 static struct snd_pcm_hardware azx_pcm_hw = {
1335         .info =                 (SNDRV_PCM_INFO_MMAP |
1336                                  SNDRV_PCM_INFO_INTERLEAVED |
1337                                  SNDRV_PCM_INFO_BLOCK_TRANSFER |
1338                                  SNDRV_PCM_INFO_MMAP_VALID |
1339                                  /* No full-resume yet implemented */
1340                                  /* SNDRV_PCM_INFO_RESUME |*/
1341                                  SNDRV_PCM_INFO_PAUSE |
1342                                  SNDRV_PCM_INFO_SYNC_START),
1343         .formats =              SNDRV_PCM_FMTBIT_S16_LE,
1344         .rates =                SNDRV_PCM_RATE_48000,
1345         .rate_min =             48000,
1346         .rate_max =             48000,
1347         .channels_min =         2,
1348         .channels_max =         2,
1349         .buffer_bytes_max =     AZX_MAX_BUF_SIZE,
1350         .period_bytes_min =     128,
1351         .period_bytes_max =     AZX_MAX_BUF_SIZE / 2,
1352         .periods_min =          2,
1353         .periods_max =          AZX_MAX_FRAG,
1354         .fifo_size =            0,
1355 };
1356
1357 struct azx_pcm {
1358         struct azx *chip;
1359         struct hda_codec *codec;
1360         struct hda_pcm_stream *hinfo[2];
1361 };
1362
1363 static int azx_pcm_open(struct snd_pcm_substream *substream)
1364 {
1365         struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
1366         struct hda_pcm_stream *hinfo = apcm->hinfo[substream->stream];
1367         struct azx *chip = apcm->chip;
1368         struct azx_dev *azx_dev;
1369         struct snd_pcm_runtime *runtime = substream->runtime;
1370         unsigned long flags;
1371         int err;
1372
1373         mutex_lock(&chip->open_mutex);
1374         azx_dev = azx_assign_device(chip, substream->stream);
1375         if (azx_dev == NULL) {
1376                 mutex_unlock(&chip->open_mutex);
1377                 return -EBUSY;
1378         }
1379         runtime->hw = azx_pcm_hw;
1380         runtime->hw.channels_min = hinfo->channels_min;
1381         runtime->hw.channels_max = hinfo->channels_max;
1382         runtime->hw.formats = hinfo->formats;
1383         runtime->hw.rates = hinfo->rates;
1384         snd_pcm_limit_hw_rates(runtime);
1385         snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS);
1386         snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_BUFFER_BYTES,
1387                                    128);
1388         snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES,
1389                                    128);
1390         snd_hda_power_up(apcm->codec);
1391         err = hinfo->ops.open(hinfo, apcm->codec, substream);
1392         if (err < 0) {
1393                 azx_release_device(azx_dev);
1394                 snd_hda_power_down(apcm->codec);
1395                 mutex_unlock(&chip->open_mutex);
1396                 return err;
1397         }
1398         spin_lock_irqsave(&chip->reg_lock, flags);
1399         azx_dev->substream = substream;
1400         azx_dev->running = 0;
1401         spin_unlock_irqrestore(&chip->reg_lock, flags);
1402
1403         runtime->private_data = azx_dev;
1404         snd_pcm_set_sync(substream);
1405         mutex_unlock(&chip->open_mutex);
1406         return 0;
1407 }
1408
1409 static int azx_pcm_close(struct snd_pcm_substream *substream)
1410 {
1411         struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
1412         struct hda_pcm_stream *hinfo = apcm->hinfo[substream->stream];
1413         struct azx *chip = apcm->chip;
1414         struct azx_dev *azx_dev = get_azx_dev(substream);
1415         unsigned long flags;
1416
1417         mutex_lock(&chip->open_mutex);
1418         spin_lock_irqsave(&chip->reg_lock, flags);
1419         azx_dev->substream = NULL;
1420         azx_dev->running = 0;
1421         spin_unlock_irqrestore(&chip->reg_lock, flags);
1422         azx_release_device(azx_dev);
1423         hinfo->ops.close(hinfo, apcm->codec, substream);
1424         snd_hda_power_down(apcm->codec);
1425         mutex_unlock(&chip->open_mutex);
1426         return 0;
1427 }
1428
1429 static int azx_pcm_hw_params(struct snd_pcm_substream *substream,
1430                              struct snd_pcm_hw_params *hw_params)
1431 {
1432         return snd_pcm_lib_malloc_pages(substream,
1433                                         params_buffer_bytes(hw_params));
1434 }
1435
1436 static int azx_pcm_hw_free(struct snd_pcm_substream *substream)
1437 {
1438         struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
1439         struct azx_dev *azx_dev = get_azx_dev(substream);
1440         struct hda_pcm_stream *hinfo = apcm->hinfo[substream->stream];
1441
1442         /* reset BDL address */
1443         azx_sd_writel(azx_dev, SD_BDLPL, 0);
1444         azx_sd_writel(azx_dev, SD_BDLPU, 0);
1445         azx_sd_writel(azx_dev, SD_CTL, 0);
1446
1447         hinfo->ops.cleanup(hinfo, apcm->codec, substream);
1448
1449         return snd_pcm_lib_free_pages(substream);
1450 }
1451
1452 static int azx_pcm_prepare(struct snd_pcm_substream *substream)
1453 {
1454         struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
1455         struct azx *chip = apcm->chip;
1456         struct azx_dev *azx_dev = get_azx_dev(substream);
1457         struct hda_pcm_stream *hinfo = apcm->hinfo[substream->stream];
1458         struct snd_pcm_runtime *runtime = substream->runtime;
1459
1460         azx_dev->bufsize = snd_pcm_lib_buffer_bytes(substream);
1461         azx_dev->format_val = snd_hda_calc_stream_format(runtime->rate,
1462                                                          runtime->channels,
1463                                                          runtime->format,
1464                                                          hinfo->maxbps);
1465         if (!azx_dev->format_val) {
1466                 snd_printk(KERN_ERR SFX
1467                            "invalid format_val, rate=%d, ch=%d, format=%d\n",
1468                            runtime->rate, runtime->channels, runtime->format);
1469                 return -EINVAL;
1470         }
1471
1472         snd_printdd("azx_pcm_prepare: bufsize=0x%x, format=0x%x\n",
1473                     azx_dev->bufsize, azx_dev->format_val);
1474         if (azx_setup_periods(chip, substream, azx_dev) < 0)
1475                 return -EINVAL;
1476         azx_setup_controller(chip, azx_dev);
1477         if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
1478                 azx_dev->fifo_size = azx_sd_readw(azx_dev, SD_FIFOSIZE) + 1;
1479         else
1480                 azx_dev->fifo_size = 0;
1481
1482         return hinfo->ops.prepare(hinfo, apcm->codec, azx_dev->stream_tag,
1483                                   azx_dev->format_val, substream);
1484 }
1485
1486 static int azx_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
1487 {
1488         struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
1489         struct azx *chip = apcm->chip;
1490         struct azx_dev *azx_dev;
1491         struct snd_pcm_substream *s;
1492         int start, nsync = 0, sbits = 0;
1493         int nwait, timeout;
1494
1495         switch (cmd) {
1496         case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
1497         case SNDRV_PCM_TRIGGER_RESUME:
1498         case SNDRV_PCM_TRIGGER_START:
1499                 start = 1;
1500                 break;
1501         case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
1502         case SNDRV_PCM_TRIGGER_SUSPEND:
1503         case SNDRV_PCM_TRIGGER_STOP:
1504                 start = 0;
1505                 break;
1506         default:
1507                 return -EINVAL;
1508         }
1509
1510         snd_pcm_group_for_each_entry(s, substream) {
1511                 if (s->pcm->card != substream->pcm->card)
1512                         continue;
1513                 azx_dev = get_azx_dev(s);
1514                 sbits |= 1 << azx_dev->index;
1515                 nsync++;
1516                 snd_pcm_trigger_done(s, substream);
1517         }
1518
1519         spin_lock(&chip->reg_lock);
1520         if (nsync > 1) {
1521                 /* first, set SYNC bits of corresponding streams */
1522                 azx_writel(chip, SYNC, azx_readl(chip, SYNC) | sbits);
1523         }
1524         snd_pcm_group_for_each_entry(s, substream) {
1525                 if (s->pcm->card != substream->pcm->card)
1526                         continue;
1527                 azx_dev = get_azx_dev(s);
1528                 if (start)
1529                         azx_stream_start(chip, azx_dev);
1530                 else
1531                         azx_stream_stop(chip, azx_dev);
1532                 azx_dev->running = start;
1533         }
1534         spin_unlock(&chip->reg_lock);
1535         if (start) {
1536                 if (nsync == 1)
1537                         return 0;
1538                 /* wait until all FIFOs get ready */
1539                 for (timeout = 5000; timeout; timeout--) {
1540                         nwait = 0;
1541                         snd_pcm_group_for_each_entry(s, substream) {
1542                                 if (s->pcm->card != substream->pcm->card)
1543                                         continue;
1544                                 azx_dev = get_azx_dev(s);
1545                                 if (!(azx_sd_readb(azx_dev, SD_STS) &
1546                                       SD_STS_FIFO_READY))
1547                                         nwait++;
1548                         }
1549                         if (!nwait)
1550                                 break;
1551                         cpu_relax();
1552                 }
1553         } else {
1554                 /* wait until all RUN bits are cleared */
1555                 for (timeout = 5000; timeout; timeout--) {
1556                         nwait = 0;
1557                         snd_pcm_group_for_each_entry(s, substream) {
1558                                 if (s->pcm->card != substream->pcm->card)
1559                                         continue;
1560                                 azx_dev = get_azx_dev(s);
1561                                 if (azx_sd_readb(azx_dev, SD_CTL) &
1562                                     SD_CTL_DMA_START)
1563                                         nwait++;
1564                         }
1565                         if (!nwait)
1566                                 break;
1567                         cpu_relax();
1568                 }
1569         }
1570         if (nsync > 1) {
1571                 spin_lock(&chip->reg_lock);
1572                 /* reset SYNC bits */
1573                 azx_writel(chip, SYNC, azx_readl(chip, SYNC) & ~sbits);
1574                 spin_unlock(&chip->reg_lock);
1575         }
1576         return 0;
1577 }
1578
1579 /* get the current DMA position with correction on VIA chips */
1580 static unsigned int azx_via_get_position(struct azx *chip,
1581                                          struct azx_dev *azx_dev)
1582 {
1583         unsigned int link_pos, mini_pos, bound_pos;
1584         unsigned int mod_link_pos, mod_dma_pos, mod_mini_pos;
1585         unsigned int fifo_size;
1586
1587         link_pos = azx_sd_readl(azx_dev, SD_LPIB);
1588         if (azx_dev->index >= 4) {
1589                 /* Playback, no problem using link position */
1590                 return link_pos;
1591         }
1592
1593         /* Capture */
1594         /* For new chipset,
1595          * use mod to get the DMA position just like old chipset
1596          */
1597         mod_dma_pos = le32_to_cpu(*azx_dev->posbuf);
1598         mod_dma_pos %= azx_dev->period_bytes;
1599
1600         /* azx_dev->fifo_size can't get FIFO size of in stream.
1601          * Get from base address + offset.
1602          */
1603         fifo_size = readw(chip->remap_addr + VIA_IN_STREAM0_FIFO_SIZE_OFFSET);
1604
1605         if (azx_dev->insufficient) {
1606                 /* Link position never gather than FIFO size */
1607                 if (link_pos <= fifo_size)
1608                         return 0;
1609
1610                 azx_dev->insufficient = 0;
1611         }
1612
1613         if (link_pos <= fifo_size)
1614                 mini_pos = azx_dev->bufsize + link_pos - fifo_size;
1615         else
1616                 mini_pos = link_pos - fifo_size;
1617
1618         /* Find nearest previous boudary */
1619         mod_mini_pos = mini_pos % azx_dev->period_bytes;
1620         mod_link_pos = link_pos % azx_dev->period_bytes;
1621         if (mod_link_pos >= fifo_size)
1622                 bound_pos = link_pos - mod_link_pos;
1623         else if (mod_dma_pos >= mod_mini_pos)
1624                 bound_pos = mini_pos - mod_mini_pos;
1625         else {
1626                 bound_pos = mini_pos - mod_mini_pos + azx_dev->period_bytes;
1627                 if (bound_pos >= azx_dev->bufsize)
1628                         bound_pos = 0;
1629         }
1630
1631         /* Calculate real DMA position we want */
1632         return bound_pos + mod_dma_pos;
1633 }
1634
1635 static unsigned int azx_get_position(struct azx *chip,
1636                                      struct azx_dev *azx_dev)
1637 {
1638         unsigned int pos;
1639
1640         if (chip->via_dmapos_patch)
1641                 pos = azx_via_get_position(chip, azx_dev);
1642         else if (chip->position_fix == POS_FIX_POSBUF ||
1643                  chip->position_fix == POS_FIX_AUTO) {
1644                 /* use the position buffer */
1645                 pos = le32_to_cpu(*azx_dev->posbuf);
1646         } else {
1647                 /* read LPIB */
1648                 pos = azx_sd_readl(azx_dev, SD_LPIB);
1649         }
1650         if (pos >= azx_dev->bufsize)
1651                 pos = 0;
1652         return pos;
1653 }
1654
1655 static snd_pcm_uframes_t azx_pcm_pointer(struct snd_pcm_substream *substream)
1656 {
1657         struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
1658         struct azx *chip = apcm->chip;
1659         struct azx_dev *azx_dev = get_azx_dev(substream);
1660         return bytes_to_frames(substream->runtime,
1661                                azx_get_position(chip, azx_dev));
1662 }
1663
1664 /*
1665  * Check whether the current DMA position is acceptable for updating
1666  * periods.  Returns non-zero if it's OK.
1667  *
1668  * Many HD-audio controllers appear pretty inaccurate about
1669  * the update-IRQ timing.  The IRQ is issued before actually the
1670  * data is processed.  So, we need to process it afterwords in a
1671  * workqueue.
1672  */
1673 static int azx_position_ok(struct azx *chip, struct azx_dev *azx_dev)
1674 {
1675         unsigned int pos;
1676
1677         pos = azx_get_position(chip, azx_dev);
1678         if (chip->position_fix == POS_FIX_AUTO) {
1679                 if (!pos) {
1680                         printk(KERN_WARNING
1681                                "hda-intel: Invalid position buffer, "
1682                                "using LPIB read method instead.\n");
1683                         chip->position_fix = POS_FIX_LPIB;
1684                         pos = azx_get_position(chip, azx_dev);
1685                 } else
1686                         chip->position_fix = POS_FIX_POSBUF;
1687         }
1688
1689         if (!bdl_pos_adj[chip->dev_index])
1690                 return 1; /* no delayed ack */
1691         if (pos % azx_dev->period_bytes > azx_dev->period_bytes / 2)
1692                 return 0; /* NG - it's below the period boundary */
1693         return 1; /* OK, it's fine */
1694 }
1695
1696 /*
1697  * The work for pending PCM period updates.
1698  */
1699 static void azx_irq_pending_work(struct work_struct *work)
1700 {
1701         struct azx *chip = container_of(work, struct azx, irq_pending_work);
1702         int i, pending;
1703
1704         if (!chip->irq_pending_warned) {
1705                 printk(KERN_WARNING
1706                        "hda-intel: IRQ timing workaround is activated "
1707                        "for card #%d. Suggest a bigger bdl_pos_adj.\n",
1708                        chip->card->number);
1709                 chip->irq_pending_warned = 1;
1710         }
1711
1712         for (;;) {
1713                 pending = 0;
1714                 spin_lock_irq(&chip->reg_lock);
1715                 for (i = 0; i < chip->num_streams; i++) {
1716                         struct azx_dev *azx_dev = &chip->azx_dev[i];
1717                         if (!azx_dev->irq_pending ||
1718                             !azx_dev->substream ||
1719                             !azx_dev->running)
1720                                 continue;
1721                         if (azx_position_ok(chip, azx_dev)) {
1722                                 azx_dev->irq_pending = 0;
1723                                 spin_unlock(&chip->reg_lock);
1724                                 snd_pcm_period_elapsed(azx_dev->substream);
1725                                 spin_lock(&chip->reg_lock);
1726                         } else
1727                                 pending++;
1728                 }
1729                 spin_unlock_irq(&chip->reg_lock);
1730                 if (!pending)
1731                         return;
1732                 cond_resched();
1733         }
1734 }
1735
1736 /* clear irq_pending flags and assure no on-going workq */
1737 static void azx_clear_irq_pending(struct azx *chip)
1738 {
1739         int i;
1740
1741         spin_lock_irq(&chip->reg_lock);
1742         for (i = 0; i < chip->num_streams; i++)
1743                 chip->azx_dev[i].irq_pending = 0;
1744         spin_unlock_irq(&chip->reg_lock);
1745 }
1746
1747 static struct snd_pcm_ops azx_pcm_ops = {
1748         .open = azx_pcm_open,
1749         .close = azx_pcm_close,
1750         .ioctl = snd_pcm_lib_ioctl,
1751         .hw_params = azx_pcm_hw_params,
1752         .hw_free = azx_pcm_hw_free,
1753         .prepare = azx_pcm_prepare,
1754         .trigger = azx_pcm_trigger,
1755         .pointer = azx_pcm_pointer,
1756         .page = snd_pcm_sgbuf_ops_page,
1757 };
1758
1759 static void azx_pcm_free(struct snd_pcm *pcm)
1760 {
1761         struct azx_pcm *apcm = pcm->private_data;
1762         if (apcm) {
1763                 apcm->chip->pcm[pcm->device] = NULL;
1764                 kfree(apcm);
1765         }
1766 }
1767
1768 static int
1769 azx_attach_pcm_stream(struct hda_bus *bus, struct hda_codec *codec,
1770                       struct hda_pcm *cpcm)
1771 {
1772         struct azx *chip = bus->private_data;
1773         struct snd_pcm *pcm;
1774         struct azx_pcm *apcm;
1775         int pcm_dev = cpcm->device;
1776         int s, err;
1777
1778         if (pcm_dev >= AZX_MAX_PCMS) {
1779                 snd_printk(KERN_ERR SFX "Invalid PCM device number %d\n",
1780                            pcm_dev);
1781                 return -EINVAL;
1782         }
1783         if (chip->pcm[pcm_dev]) {
1784                 snd_printk(KERN_ERR SFX "PCM %d already exists\n", pcm_dev);
1785                 return -EBUSY;
1786         }
1787         err = snd_pcm_new(chip->card, cpcm->name, pcm_dev,
1788                           cpcm->stream[SNDRV_PCM_STREAM_PLAYBACK].substreams,
1789                           cpcm->stream[SNDRV_PCM_STREAM_CAPTURE].substreams,
1790                           &pcm);
1791         if (err < 0)
1792                 return err;
1793         strcpy(pcm->name, cpcm->name);
1794         apcm = kzalloc(sizeof(*apcm), GFP_KERNEL);
1795         if (apcm == NULL)
1796                 return -ENOMEM;
1797         apcm->chip = chip;
1798         apcm->codec = codec;
1799         pcm->private_data = apcm;
1800         pcm->private_free = azx_pcm_free;
1801         if (cpcm->pcm_type == HDA_PCM_TYPE_MODEM)
1802                 pcm->dev_class = SNDRV_PCM_CLASS_MODEM;
1803         chip->pcm[pcm_dev] = pcm;
1804         cpcm->pcm = pcm;
1805         for (s = 0; s < 2; s++) {
1806                 apcm->hinfo[s] = &cpcm->stream[s];
1807                 if (cpcm->stream[s].substreams)
1808                         snd_pcm_set_ops(pcm, s, &azx_pcm_ops);
1809         }
1810         /* buffer pre-allocation */
1811         snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
1812                                               snd_dma_pci_data(chip->pci),
1813                                               1024 * 64, 32 * 1024 * 1024);
1814         return 0;
1815 }
1816
1817 /*
1818  * mixer creation - all stuff is implemented in hda module
1819  */
1820 static int __devinit azx_mixer_create(struct azx *chip)
1821 {
1822         return snd_hda_build_controls(chip->bus);
1823 }
1824
1825
1826 /*
1827  * initialize SD streams
1828  */
1829 static int __devinit azx_init_stream(struct azx *chip)
1830 {
1831         int i;
1832
1833         /* initialize each stream (aka device)
1834          * assign the starting bdl address to each stream (device)
1835          * and initialize
1836          */
1837         for (i = 0; i < chip->num_streams; i++) {
1838                 struct azx_dev *azx_dev = &chip->azx_dev[i];
1839                 azx_dev->posbuf = (u32 __iomem *)(chip->posbuf.area + i * 8);
1840                 /* offset: SDI0=0x80, SDI1=0xa0, ... SDO3=0x160 */
1841                 azx_dev->sd_addr = chip->remap_addr + (0x20 * i + 0x80);
1842                 /* int mask: SDI0=0x01, SDI1=0x02, ... SDO3=0x80 */
1843                 azx_dev->sd_int_sta_mask = 1 << i;
1844                 /* stream tag: must be non-zero and unique */
1845                 azx_dev->index = i;
1846                 azx_dev->stream_tag = i + 1;
1847         }
1848
1849         return 0;
1850 }
1851
1852 static int azx_acquire_irq(struct azx *chip, int do_disconnect)
1853 {
1854         if (request_irq(chip->pci->irq, azx_interrupt,
1855                         chip->msi ? 0 : IRQF_SHARED,
1856                         "HDA Intel", chip)) {
1857                 printk(KERN_ERR "hda-intel: unable to grab IRQ %d, "
1858                        "disabling device\n", chip->pci->irq);
1859                 if (do_disconnect)
1860                         snd_card_disconnect(chip->card);
1861                 return -1;
1862         }
1863         chip->irq = chip->pci->irq;
1864         pci_intx(chip->pci, !chip->msi);
1865         return 0;
1866 }
1867
1868
1869 static void azx_stop_chip(struct azx *chip)
1870 {
1871         if (!chip->initialized)
1872                 return;
1873
1874         /* disable interrupts */
1875         azx_int_disable(chip);
1876         azx_int_clear(chip);
1877
1878         /* disable CORB/RIRB */
1879         azx_free_cmd_io(chip);
1880
1881         /* disable position buffer */
1882         azx_writel(chip, DPLBASE, 0);
1883         azx_writel(chip, DPUBASE, 0);
1884
1885         chip->initialized = 0;
1886 }
1887
1888 #ifdef CONFIG_SND_HDA_POWER_SAVE
1889 /* power-up/down the controller */
1890 static void azx_power_notify(struct hda_bus *bus)
1891 {
1892         struct azx *chip = bus->private_data;
1893         struct hda_codec *c;
1894         int power_on = 0;
1895
1896         list_for_each_entry(c, &bus->codec_list, list) {
1897                 if (c->power_on) {
1898                         power_on = 1;
1899                         break;
1900                 }
1901         }
1902         if (power_on)
1903                 azx_init_chip(chip);
1904         else if (chip->running && power_save_controller)
1905                 azx_stop_chip(chip);
1906 }
1907 #endif /* CONFIG_SND_HDA_POWER_SAVE */
1908
1909 #ifdef CONFIG_PM
1910 /*
1911  * power management
1912  */
1913
1914 static int snd_hda_codecs_inuse(struct hda_bus *bus)
1915 {
1916         struct hda_codec *codec;
1917
1918         list_for_each_entry(codec, &bus->codec_list, list) {
1919                 if (snd_hda_codec_needs_resume(codec))
1920                         return 1;
1921         }
1922         return 0;
1923 }
1924
1925 static int azx_suspend(struct pci_dev *pci, pm_message_t state)
1926 {
1927         struct snd_card *card = pci_get_drvdata(pci);
1928         struct azx *chip = card->private_data;
1929         int i;
1930
1931         snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
1932         azx_clear_irq_pending(chip);
1933         for (i = 0; i < AZX_MAX_PCMS; i++)
1934                 snd_pcm_suspend_all(chip->pcm[i]);
1935         if (chip->initialized)
1936                 snd_hda_suspend(chip->bus, state);
1937         azx_stop_chip(chip);
1938         if (chip->irq >= 0) {
1939                 free_irq(chip->irq, chip);
1940                 chip->irq = -1;
1941         }
1942         if (chip->msi)
1943                 pci_disable_msi(chip->pci);
1944         pci_disable_device(pci);
1945         pci_save_state(pci);
1946         pci_set_power_state(pci, pci_choose_state(pci, state));
1947         return 0;
1948 }
1949
1950 static int azx_resume(struct pci_dev *pci)
1951 {
1952         struct snd_card *card = pci_get_drvdata(pci);
1953         struct azx *chip = card->private_data;
1954
1955         pci_set_power_state(pci, PCI_D0);
1956         pci_restore_state(pci);
1957         if (pci_enable_device(pci) < 0) {
1958                 printk(KERN_ERR "hda-intel: pci_enable_device failed, "
1959                        "disabling device\n");
1960                 snd_card_disconnect(card);
1961                 return -EIO;
1962         }
1963         pci_set_master(pci);
1964         if (chip->msi)
1965                 if (pci_enable_msi(pci) < 0)
1966                         chip->msi = 0;
1967         if (azx_acquire_irq(chip, 1) < 0)
1968                 return -EIO;
1969         azx_init_pci(chip);
1970
1971         if (snd_hda_codecs_inuse(chip->bus))
1972                 azx_init_chip(chip);
1973
1974         snd_hda_resume(chip->bus);
1975         snd_power_change_state(card, SNDRV_CTL_POWER_D0);
1976         return 0;
1977 }
1978 #endif /* CONFIG_PM */
1979
1980
1981 /*
1982  * reboot notifier for hang-up problem at power-down
1983  */
1984 static int azx_halt(struct notifier_block *nb, unsigned long event, void *buf)
1985 {
1986         struct azx *chip = container_of(nb, struct azx, reboot_notifier);
1987         azx_stop_chip(chip);
1988         return NOTIFY_OK;
1989 }
1990
1991 static void azx_notifier_register(struct azx *chip)
1992 {
1993         chip->reboot_notifier.notifier_call = azx_halt;
1994         register_reboot_notifier(&chip->reboot_notifier);
1995 }
1996
1997 static void azx_notifier_unregister(struct azx *chip)
1998 {
1999         if (chip->reboot_notifier.notifier_call)
2000                 unregister_reboot_notifier(&chip->reboot_notifier);
2001 }
2002
2003 /*
2004  * destructor
2005  */
2006 static int azx_free(struct azx *chip)
2007 {
2008         int i;
2009
2010         azx_notifier_unregister(chip);
2011
2012         if (chip->initialized) {
2013                 azx_clear_irq_pending(chip);
2014                 for (i = 0; i < chip->num_streams; i++)
2015                         azx_stream_stop(chip, &chip->azx_dev[i]);
2016                 azx_stop_chip(chip);
2017         }
2018
2019         if (chip->irq >= 0)
2020                 free_irq(chip->irq, (void*)chip);
2021         if (chip->msi)
2022                 pci_disable_msi(chip->pci);
2023         if (chip->remap_addr)
2024                 iounmap(chip->remap_addr);
2025
2026         if (chip->azx_dev) {
2027                 for (i = 0; i < chip->num_streams; i++)
2028                         if (chip->azx_dev[i].bdl.area)
2029                                 snd_dma_free_pages(&chip->azx_dev[i].bdl);
2030         }
2031         if (chip->rb.area)
2032                 snd_dma_free_pages(&chip->rb);
2033         if (chip->posbuf.area)
2034                 snd_dma_free_pages(&chip->posbuf);
2035         pci_release_regions(chip->pci);
2036         pci_disable_device(chip->pci);
2037         kfree(chip->azx_dev);
2038         kfree(chip);
2039
2040         return 0;
2041 }
2042
2043 static int azx_dev_free(struct snd_device *device)
2044 {
2045         return azx_free(device->device_data);
2046 }
2047
2048 /*
2049  * white/black-listing for position_fix
2050  */
2051 static struct snd_pci_quirk position_fix_list[] __devinitdata = {
2052         SND_PCI_QUIRK(0x1028, 0x01cc, "Dell D820", POS_FIX_LPIB),
2053         SND_PCI_QUIRK(0x1028, 0x01de, "Dell Precision 390", POS_FIX_LPIB),
2054         SND_PCI_QUIRK(0x1043, 0x813d, "ASUS P5AD2", POS_FIX_LPIB),
2055         {}
2056 };
2057
2058 static int __devinit check_position_fix(struct azx *chip, int fix)
2059 {
2060         const struct snd_pci_quirk *q;
2061
2062         switch (fix) {
2063         case POS_FIX_LPIB:
2064         case POS_FIX_POSBUF:
2065                 return fix;
2066         }
2067
2068         /* Check VIA/ATI HD Audio Controller exist */
2069         switch (chip->driver_type) {
2070         case AZX_DRIVER_VIA:
2071         case AZX_DRIVER_ATI:
2072                 chip->via_dmapos_patch = 1;
2073                 /* Use link position directly, avoid any transfer problem. */
2074                 return POS_FIX_LPIB;
2075         }
2076         chip->via_dmapos_patch = 0;
2077
2078         q = snd_pci_quirk_lookup(chip->pci, position_fix_list);
2079         if (q) {
2080                 printk(KERN_INFO
2081                        "hda_intel: position_fix set to %d "
2082                        "for device %04x:%04x\n",
2083                        q->value, q->subvendor, q->subdevice);
2084                 return q->value;
2085         }
2086         return POS_FIX_AUTO;
2087 }
2088
2089 /*
2090  * black-lists for probe_mask
2091  */
2092 static struct snd_pci_quirk probe_mask_list[] __devinitdata = {
2093         /* Thinkpad often breaks the controller communication when accessing
2094          * to the non-working (or non-existing) modem codec slot.
2095          */
2096         SND_PCI_QUIRK(0x1014, 0x05b7, "Thinkpad Z60", 0x01),
2097         SND_PCI_QUIRK(0x17aa, 0x2010, "Thinkpad X/T/R60", 0x01),
2098         SND_PCI_QUIRK(0x17aa, 0x20ac, "Thinkpad X/T/R61", 0x01),
2099         /* broken BIOS */
2100         SND_PCI_QUIRK(0x1028, 0x20ac, "Dell Studio Desktop", 0x01),
2101         /* including bogus ALC268 in slot#2 that conflicts with ALC888 */
2102         SND_PCI_QUIRK(0x17c0, 0x4085, "Medion MD96630", 0x01),
2103         /* conflict of ALC268 in slot#3 (digital I/O); a temporary fix */
2104         SND_PCI_QUIRK(0x1179, 0xff00, "Toshiba laptop", 0x03),
2105         {}
2106 };
2107
2108 static void __devinit check_probe_mask(struct azx *chip, int dev)
2109 {
2110         const struct snd_pci_quirk *q;
2111
2112         if (probe_mask[dev] == -1) {
2113                 q = snd_pci_quirk_lookup(chip->pci, probe_mask_list);
2114                 if (q) {
2115                         printk(KERN_INFO
2116                                "hda_intel: probe_mask set to 0x%x "
2117                                "for device %04x:%04x\n",
2118                                q->value, q->subvendor, q->subdevice);
2119                         probe_mask[dev] = q->value;
2120                 }
2121         }
2122 }
2123
2124
2125 /*
2126  * constructor
2127  */
2128 static int __devinit azx_create(struct snd_card *card, struct pci_dev *pci,
2129                                 int dev, int driver_type,
2130                                 struct azx **rchip)
2131 {
2132         struct azx *chip;
2133         int i, err;
2134         unsigned short gcap;
2135         static struct snd_device_ops ops = {
2136                 .dev_free = azx_dev_free,
2137         };
2138
2139         *rchip = NULL;
2140
2141         err = pci_enable_device(pci);
2142         if (err < 0)
2143                 return err;
2144
2145         chip = kzalloc(sizeof(*chip), GFP_KERNEL);
2146         if (!chip) {
2147                 snd_printk(KERN_ERR SFX "cannot allocate chip\n");
2148                 pci_disable_device(pci);
2149                 return -ENOMEM;
2150         }
2151
2152         spin_lock_init(&chip->reg_lock);
2153         mutex_init(&chip->open_mutex);
2154         chip->card = card;
2155         chip->pci = pci;
2156         chip->irq = -1;
2157         chip->driver_type = driver_type;
2158         chip->msi = enable_msi;
2159         chip->dev_index = dev;
2160         INIT_WORK(&chip->irq_pending_work, azx_irq_pending_work);
2161
2162         chip->position_fix = check_position_fix(chip, position_fix[dev]);
2163         check_probe_mask(chip, dev);
2164
2165         chip->single_cmd = single_cmd;
2166
2167         if (bdl_pos_adj[dev] < 0) {
2168                 switch (chip->driver_type) {
2169                 case AZX_DRIVER_ICH:
2170                         bdl_pos_adj[dev] = 1;
2171                         break;
2172                 default:
2173                         bdl_pos_adj[dev] = 32;
2174                         break;
2175                 }
2176         }
2177
2178 #if BITS_PER_LONG != 64
2179         /* Fix up base address on ULI M5461 */
2180         if (chip->driver_type == AZX_DRIVER_ULI) {
2181                 u16 tmp3;
2182                 pci_read_config_word(pci, 0x40, &tmp3);
2183                 pci_write_config_word(pci, 0x40, tmp3 | 0x10);
2184                 pci_write_config_dword(pci, PCI_BASE_ADDRESS_1, 0);
2185         }
2186 #endif
2187
2188         err = pci_request_regions(pci, "ICH HD audio");
2189         if (err < 0) {
2190                 kfree(chip);
2191                 pci_disable_device(pci);
2192                 return err;
2193         }
2194
2195         chip->addr = pci_resource_start(pci, 0);
2196         chip->remap_addr = pci_ioremap_bar(pci, 0);
2197         if (chip->remap_addr == NULL) {
2198                 snd_printk(KERN_ERR SFX "ioremap error\n");
2199                 err = -ENXIO;
2200                 goto errout;
2201         }
2202
2203         if (chip->msi)
2204                 if (pci_enable_msi(pci) < 0)
2205                         chip->msi = 0;
2206
2207         if (azx_acquire_irq(chip, 0) < 0) {
2208                 err = -EBUSY;
2209                 goto errout;
2210         }
2211
2212         pci_set_master(pci);
2213         synchronize_irq(chip->irq);
2214
2215         gcap = azx_readw(chip, GCAP);
2216         snd_printdd("chipset global capabilities = 0x%x\n", gcap);
2217
2218         /* ATI chips seems buggy about 64bit DMA addresses */
2219         if (chip->driver_type == AZX_DRIVER_ATI)
2220                 gcap &= ~0x01;
2221
2222         /* allow 64bit DMA address if supported by H/W */
2223         if ((gcap & 0x01) && !pci_set_dma_mask(pci, DMA_64BIT_MASK))
2224                 pci_set_consistent_dma_mask(pci, DMA_64BIT_MASK);
2225         else {
2226                 pci_set_dma_mask(pci, DMA_32BIT_MASK);
2227                 pci_set_consistent_dma_mask(pci, DMA_32BIT_MASK);
2228         }
2229
2230         /* read number of streams from GCAP register instead of using
2231          * hardcoded value
2232          */
2233         chip->capture_streams = (gcap >> 8) & 0x0f;
2234         chip->playback_streams = (gcap >> 12) & 0x0f;
2235         if (!chip->playback_streams && !chip->capture_streams) {
2236                 /* gcap didn't give any info, switching to old method */
2237
2238                 switch (chip->driver_type) {
2239                 case AZX_DRIVER_ULI:
2240                         chip->playback_streams = ULI_NUM_PLAYBACK;
2241                         chip->capture_streams = ULI_NUM_CAPTURE;
2242                         break;
2243                 case AZX_DRIVER_ATIHDMI:
2244                         chip->playback_streams = ATIHDMI_NUM_PLAYBACK;
2245                         chip->capture_streams = ATIHDMI_NUM_CAPTURE;
2246                         break;
2247                 case AZX_DRIVER_GENERIC:
2248                 default:
2249                         chip->playback_streams = ICH6_NUM_PLAYBACK;
2250                         chip->capture_streams = ICH6_NUM_CAPTURE;
2251                         break;
2252                 }
2253         }
2254         chip->capture_index_offset = 0;
2255         chip->playback_index_offset = chip->capture_streams;
2256         chip->num_streams = chip->playback_streams + chip->capture_streams;
2257         chip->azx_dev = kcalloc(chip->num_streams, sizeof(*chip->azx_dev),
2258                                 GFP_KERNEL);
2259         if (!chip->azx_dev) {
2260                 snd_printk(KERN_ERR "cannot malloc azx_dev\n");
2261                 goto errout;
2262         }
2263
2264         for (i = 0; i < chip->num_streams; i++) {
2265                 /* allocate memory for the BDL for each stream */
2266                 err = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV,
2267                                           snd_dma_pci_data(chip->pci),
2268                                           BDL_SIZE, &chip->azx_dev[i].bdl);
2269                 if (err < 0) {
2270                         snd_printk(KERN_ERR SFX "cannot allocate BDL\n");
2271                         goto errout;
2272                 }
2273         }
2274         /* allocate memory for the position buffer */
2275         err = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV,
2276                                   snd_dma_pci_data(chip->pci),
2277                                   chip->num_streams * 8, &chip->posbuf);
2278         if (err < 0) {
2279                 snd_printk(KERN_ERR SFX "cannot allocate posbuf\n");
2280                 goto errout;
2281         }
2282         /* allocate CORB/RIRB */
2283         if (!chip->single_cmd) {
2284                 err = azx_alloc_cmd_io(chip);
2285                 if (err < 0)
2286                         goto errout;
2287         }
2288
2289         /* initialize streams */
2290         azx_init_stream(chip);
2291
2292         /* initialize chip */
2293         azx_init_pci(chip);
2294         azx_init_chip(chip);
2295
2296         /* codec detection */
2297         if (!chip->codec_mask) {
2298                 snd_printk(KERN_ERR SFX "no codecs found!\n");
2299                 err = -ENODEV;
2300                 goto errout;
2301         }
2302
2303         err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
2304         if (err <0) {
2305                 snd_printk(KERN_ERR SFX "Error creating device [card]!\n");
2306                 goto errout;
2307         }
2308
2309         strcpy(card->driver, "HDA-Intel");
2310         strcpy(card->shortname, driver_short_names[chip->driver_type]);
2311         sprintf(card->longname, "%s at 0x%lx irq %i",
2312                 card->shortname, chip->addr, chip->irq);
2313
2314         *rchip = chip;
2315         return 0;
2316
2317  errout:
2318         azx_free(chip);
2319         return err;
2320 }
2321
2322 static void power_down_all_codecs(struct azx *chip)
2323 {
2324 #ifdef CONFIG_SND_HDA_POWER_SAVE
2325         /* The codecs were powered up in snd_hda_codec_new().
2326          * Now all initialization done, so turn them down if possible
2327          */
2328         struct hda_codec *codec;
2329         list_for_each_entry(codec, &chip->bus->codec_list, list) {
2330                 snd_hda_power_down(codec);
2331         }
2332 #endif
2333 }
2334
2335 static int __devinit azx_probe(struct pci_dev *pci,
2336                                const struct pci_device_id *pci_id)
2337 {
2338         static int dev;
2339         struct snd_card *card;
2340         struct azx *chip;
2341         int err;
2342
2343         if (dev >= SNDRV_CARDS)
2344                 return -ENODEV;
2345         if (!enable[dev]) {
2346                 dev++;
2347                 return -ENOENT;
2348         }
2349
2350         card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0);
2351         if (!card) {
2352                 snd_printk(KERN_ERR SFX "Error creating card!\n");
2353                 return -ENOMEM;
2354         }
2355
2356         err = azx_create(card, pci, dev, pci_id->driver_data, &chip);
2357         if (err < 0)
2358                 goto out_free;
2359         card->private_data = chip;
2360
2361         /* create codec instances */
2362         err = azx_codec_create(chip, model[dev], probe_mask[dev],
2363                                probe_only[dev]);
2364         if (err < 0)
2365                 goto out_free;
2366
2367         /* create PCM streams */
2368         err = snd_hda_build_pcms(chip->bus);
2369         if (err < 0)
2370                 goto out_free;
2371
2372         /* create mixer controls */
2373         err = azx_mixer_create(chip);
2374         if (err < 0)
2375                 goto out_free;
2376
2377         snd_card_set_dev(card, &pci->dev);
2378
2379         err = snd_card_register(card);
2380         if (err < 0)
2381                 goto out_free;
2382
2383         pci_set_drvdata(pci, card);
2384         chip->running = 1;
2385         power_down_all_codecs(chip);
2386         azx_notifier_register(chip);
2387
2388         dev++;
2389         return err;
2390 out_free:
2391         snd_card_free(card);
2392         return err;
2393 }
2394
2395 static void __devexit azx_remove(struct pci_dev *pci)
2396 {
2397         snd_card_free(pci_get_drvdata(pci));
2398         pci_set_drvdata(pci, NULL);
2399 }
2400
2401 /* PCI IDs */
2402 static struct pci_device_id azx_ids[] = {
2403         /* ICH 6..10 */
2404         { PCI_DEVICE(0x8086, 0x2668), .driver_data = AZX_DRIVER_ICH },
2405         { PCI_DEVICE(0x8086, 0x27d8), .driver_data = AZX_DRIVER_ICH },
2406         { PCI_DEVICE(0x8086, 0x269a), .driver_data = AZX_DRIVER_ICH },
2407         { PCI_DEVICE(0x8086, 0x284b), .driver_data = AZX_DRIVER_ICH },
2408         { PCI_DEVICE(0x8086, 0x2911), .driver_data = AZX_DRIVER_ICH },
2409         { PCI_DEVICE(0x8086, 0x293e), .driver_data = AZX_DRIVER_ICH },
2410         { PCI_DEVICE(0x8086, 0x293f), .driver_data = AZX_DRIVER_ICH },
2411         { PCI_DEVICE(0x8086, 0x3a3e), .driver_data = AZX_DRIVER_ICH },
2412         { PCI_DEVICE(0x8086, 0x3a6e), .driver_data = AZX_DRIVER_ICH },
2413         /* PCH */
2414         { PCI_DEVICE(0x8086, 0x3b56), .driver_data = AZX_DRIVER_ICH },
2415         /* SCH */
2416         { PCI_DEVICE(0x8086, 0x811b), .driver_data = AZX_DRIVER_SCH },
2417         /* ATI SB 450/600 */
2418         { PCI_DEVICE(0x1002, 0x437b), .driver_data = AZX_DRIVER_ATI },
2419         { PCI_DEVICE(0x1002, 0x4383), .driver_data = AZX_DRIVER_ATI },
2420         /* ATI HDMI */
2421         { PCI_DEVICE(0x1002, 0x793b), .driver_data = AZX_DRIVER_ATIHDMI },
2422         { PCI_DEVICE(0x1002, 0x7919), .driver_data = AZX_DRIVER_ATIHDMI },
2423         { PCI_DEVICE(0x1002, 0x960f), .driver_data = AZX_DRIVER_ATIHDMI },
2424         { PCI_DEVICE(0x1002, 0x970f), .driver_data = AZX_DRIVER_ATIHDMI },
2425         { PCI_DEVICE(0x1002, 0xaa00), .driver_data = AZX_DRIVER_ATIHDMI },
2426         { PCI_DEVICE(0x1002, 0xaa08), .driver_data = AZX_DRIVER_ATIHDMI },
2427         { PCI_DEVICE(0x1002, 0xaa10), .driver_data = AZX_DRIVER_ATIHDMI },
2428         { PCI_DEVICE(0x1002, 0xaa18), .driver_data = AZX_DRIVER_ATIHDMI },
2429         { PCI_DEVICE(0x1002, 0xaa20), .driver_data = AZX_DRIVER_ATIHDMI },
2430         { PCI_DEVICE(0x1002, 0xaa28), .driver_data = AZX_DRIVER_ATIHDMI },
2431         { PCI_DEVICE(0x1002, 0xaa30), .driver_data = AZX_DRIVER_ATIHDMI },
2432         { PCI_DEVICE(0x1002, 0xaa38), .driver_data = AZX_DRIVER_ATIHDMI },
2433         { PCI_DEVICE(0x1002, 0xaa40), .driver_data = AZX_DRIVER_ATIHDMI },
2434         { PCI_DEVICE(0x1002, 0xaa48), .driver_data = AZX_DRIVER_ATIHDMI },
2435         /* VIA VT8251/VT8237A */
2436         { PCI_DEVICE(0x1106, 0x3288), .driver_data = AZX_DRIVER_VIA },
2437         /* SIS966 */
2438         { PCI_DEVICE(0x1039, 0x7502), .driver_data = AZX_DRIVER_SIS },
2439         /* ULI M5461 */
2440         { PCI_DEVICE(0x10b9, 0x5461), .driver_data = AZX_DRIVER_ULI },
2441         /* NVIDIA MCP */
2442         { PCI_DEVICE(0x10de, 0x026c), .driver_data = AZX_DRIVER_NVIDIA },
2443         { PCI_DEVICE(0x10de, 0x0371), .driver_data = AZX_DRIVER_NVIDIA },
2444         { PCI_DEVICE(0x10de, 0x03e4), .driver_data = AZX_DRIVER_NVIDIA },
2445         { PCI_DEVICE(0x10de, 0x03f0), .driver_data = AZX_DRIVER_NVIDIA },
2446         { PCI_DEVICE(0x10de, 0x044a), .driver_data = AZX_DRIVER_NVIDIA },
2447         { PCI_DEVICE(0x10de, 0x044b), .driver_data = AZX_DRIVER_NVIDIA },
2448         { PCI_DEVICE(0x10de, 0x055c), .driver_data = AZX_DRIVER_NVIDIA },
2449         { PCI_DEVICE(0x10de, 0x055d), .driver_data = AZX_DRIVER_NVIDIA },
2450         { PCI_DEVICE(0x10de, 0x0774), .driver_data = AZX_DRIVER_NVIDIA },
2451         { PCI_DEVICE(0x10de, 0x0775), .driver_data = AZX_DRIVER_NVIDIA },
2452         { PCI_DEVICE(0x10de, 0x0776), .driver_data = AZX_DRIVER_NVIDIA },
2453         { PCI_DEVICE(0x10de, 0x0777), .driver_data = AZX_DRIVER_NVIDIA },
2454         { PCI_DEVICE(0x10de, 0x07fc), .driver_data = AZX_DRIVER_NVIDIA },
2455         { PCI_DEVICE(0x10de, 0x07fd), .driver_data = AZX_DRIVER_NVIDIA },
2456         { PCI_DEVICE(0x10de, 0x0ac0), .driver_data = AZX_DRIVER_NVIDIA },
2457         { PCI_DEVICE(0x10de, 0x0ac1), .driver_data = AZX_DRIVER_NVIDIA },
2458         { PCI_DEVICE(0x10de, 0x0ac2), .driver_data = AZX_DRIVER_NVIDIA },
2459         { PCI_DEVICE(0x10de, 0x0ac3), .driver_data = AZX_DRIVER_NVIDIA },
2460         { PCI_DEVICE(0x10de, 0x0bd4), .driver_data = AZX_DRIVER_NVIDIA },
2461         { PCI_DEVICE(0x10de, 0x0bd5), .driver_data = AZX_DRIVER_NVIDIA },
2462         { PCI_DEVICE(0x10de, 0x0bd6), .driver_data = AZX_DRIVER_NVIDIA },
2463         { PCI_DEVICE(0x10de, 0x0bd7), .driver_data = AZX_DRIVER_NVIDIA },
2464         /* Teradici */
2465         { PCI_DEVICE(0x6549, 0x1200), .driver_data = AZX_DRIVER_TERA },
2466         /* AMD Generic, PCI class code and Vendor ID for HD Audio */
2467         { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_ANY_ID),
2468           .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2469           .class_mask = 0xffffff,
2470           .driver_data = AZX_DRIVER_GENERIC },
2471         { 0, }
2472 };
2473 MODULE_DEVICE_TABLE(pci, azx_ids);
2474
2475 /* pci_driver definition */
2476 static struct pci_driver driver = {
2477         .name = "HDA Intel",
2478         .id_table = azx_ids,
2479         .probe = azx_probe,
2480         .remove = __devexit_p(azx_remove),
2481 #ifdef CONFIG_PM
2482         .suspend = azx_suspend,
2483         .resume = azx_resume,
2484 #endif
2485 };
2486
2487 static int __init alsa_card_azx_init(void)
2488 {
2489         return pci_register_driver(&driver);
2490 }
2491
2492 static void __exit alsa_card_azx_exit(void)
2493 {
2494         pci_unregister_driver(&driver);
2495 }
2496
2497 module_init(alsa_card_azx_init)
2498 module_exit(alsa_card_azx_exit)