ALSA: use KBUILD_MODNAME for request_irq argument in sound/pci/*
[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 = -1;
64 #ifdef CONFIG_SND_HDA_PATCH_LOADER
65 static char *patch[SNDRV_CARDS];
66 #endif
67 #ifdef CONFIG_SND_HDA_INPUT_BEEP
68 static int beep_mode[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS-1)] =
69                                         CONFIG_SND_HDA_INPUT_BEEP_MODE};
70 #endif
71
72 module_param_array(index, int, NULL, 0444);
73 MODULE_PARM_DESC(index, "Index value for Intel HD audio interface.");
74 module_param_array(id, charp, NULL, 0444);
75 MODULE_PARM_DESC(id, "ID string for Intel HD audio interface.");
76 module_param_array(enable, bool, NULL, 0444);
77 MODULE_PARM_DESC(enable, "Enable Intel HD audio interface.");
78 module_param_array(model, charp, NULL, 0444);
79 MODULE_PARM_DESC(model, "Use the given board model.");
80 module_param_array(position_fix, int, NULL, 0444);
81 MODULE_PARM_DESC(position_fix, "DMA pointer read method."
82                  "(0 = auto, 1 = LPIB, 2 = POSBUF, 3 = VIACOMBO).");
83 module_param_array(bdl_pos_adj, int, NULL, 0644);
84 MODULE_PARM_DESC(bdl_pos_adj, "BDL position adjustment offset.");
85 module_param_array(probe_mask, int, NULL, 0444);
86 MODULE_PARM_DESC(probe_mask, "Bitmask to probe codecs (default = -1).");
87 module_param_array(probe_only, int, NULL, 0444);
88 MODULE_PARM_DESC(probe_only, "Only probing and no codec initialization.");
89 module_param(single_cmd, bool, 0444);
90 MODULE_PARM_DESC(single_cmd, "Use single command to communicate with codecs "
91                  "(for debugging only).");
92 module_param(enable_msi, int, 0444);
93 MODULE_PARM_DESC(enable_msi, "Enable Message Signaled Interrupt (MSI)");
94 #ifdef CONFIG_SND_HDA_PATCH_LOADER
95 module_param_array(patch, charp, NULL, 0444);
96 MODULE_PARM_DESC(patch, "Patch file for Intel HD audio interface.");
97 #endif
98 #ifdef CONFIG_SND_HDA_INPUT_BEEP
99 module_param_array(beep_mode, int, NULL, 0444);
100 MODULE_PARM_DESC(beep_mode, "Select HDA Beep registration mode "
101                             "(0=off, 1=on, 2=mute switch on/off) (default=1).");
102 #endif
103
104 #ifdef CONFIG_SND_HDA_POWER_SAVE
105 static int power_save = CONFIG_SND_HDA_POWER_SAVE_DEFAULT;
106 module_param(power_save, int, 0644);
107 MODULE_PARM_DESC(power_save, "Automatic power-saving timeout "
108                  "(in second, 0 = disable).");
109
110 /* reset the HD-audio controller in power save mode.
111  * this may give more power-saving, but will take longer time to
112  * wake up.
113  */
114 static int power_save_controller = 1;
115 module_param(power_save_controller, bool, 0644);
116 MODULE_PARM_DESC(power_save_controller, "Reset controller in power save mode.");
117 #endif
118
119 MODULE_LICENSE("GPL");
120 MODULE_SUPPORTED_DEVICE("{{Intel, ICH6},"
121                          "{Intel, ICH6M},"
122                          "{Intel, ICH7},"
123                          "{Intel, ESB2},"
124                          "{Intel, ICH8},"
125                          "{Intel, ICH9},"
126                          "{Intel, ICH10},"
127                          "{Intel, PCH},"
128                          "{Intel, CPT},"
129                          "{Intel, PPT},"
130                          "{Intel, PBG},"
131                          "{Intel, SCH},"
132                          "{ATI, SB450},"
133                          "{ATI, SB600},"
134                          "{ATI, RS600},"
135                          "{ATI, RS690},"
136                          "{ATI, RS780},"
137                          "{ATI, R600},"
138                          "{ATI, RV630},"
139                          "{ATI, RV610},"
140                          "{ATI, RV670},"
141                          "{ATI, RV635},"
142                          "{ATI, RV620},"
143                          "{ATI, RV770},"
144                          "{VIA, VT8251},"
145                          "{VIA, VT8237A},"
146                          "{SiS, SIS966},"
147                          "{ULI, M5461}}");
148 MODULE_DESCRIPTION("Intel HDA driver");
149
150 #ifdef CONFIG_SND_VERBOSE_PRINTK
151 #define SFX     /* nop */
152 #else
153 #define SFX     "hda-intel: "
154 #endif
155
156 /*
157  * registers
158  */
159 #define ICH6_REG_GCAP                   0x00
160 #define   ICH6_GCAP_64OK        (1 << 0)   /* 64bit address support */
161 #define   ICH6_GCAP_NSDO        (3 << 1)   /* # of serial data out signals */
162 #define   ICH6_GCAP_BSS         (31 << 3)  /* # of bidirectional streams */
163 #define   ICH6_GCAP_ISS         (15 << 8)  /* # of input streams */
164 #define   ICH6_GCAP_OSS         (15 << 12) /* # of output streams */
165 #define ICH6_REG_VMIN                   0x02
166 #define ICH6_REG_VMAJ                   0x03
167 #define ICH6_REG_OUTPAY                 0x04
168 #define ICH6_REG_INPAY                  0x06
169 #define ICH6_REG_GCTL                   0x08
170 #define   ICH6_GCTL_RESET       (1 << 0)   /* controller reset */
171 #define   ICH6_GCTL_FCNTRL      (1 << 1)   /* flush control */
172 #define   ICH6_GCTL_UNSOL       (1 << 8)   /* accept unsol. response enable */
173 #define ICH6_REG_WAKEEN                 0x0c
174 #define ICH6_REG_STATESTS               0x0e
175 #define ICH6_REG_GSTS                   0x10
176 #define   ICH6_GSTS_FSTS        (1 << 1)   /* flush status */
177 #define ICH6_REG_INTCTL                 0x20
178 #define ICH6_REG_INTSTS                 0x24
179 #define ICH6_REG_WALLCLK                0x30    /* 24Mhz source */
180 #define ICH6_REG_SYNC                   0x34    
181 #define ICH6_REG_CORBLBASE              0x40
182 #define ICH6_REG_CORBUBASE              0x44
183 #define ICH6_REG_CORBWP                 0x48
184 #define ICH6_REG_CORBRP                 0x4a
185 #define   ICH6_CORBRP_RST       (1 << 15)  /* read pointer reset */
186 #define ICH6_REG_CORBCTL                0x4c
187 #define   ICH6_CORBCTL_RUN      (1 << 1)   /* enable DMA */
188 #define   ICH6_CORBCTL_CMEIE    (1 << 0)   /* enable memory error irq */
189 #define ICH6_REG_CORBSTS                0x4d
190 #define   ICH6_CORBSTS_CMEI     (1 << 0)   /* memory error indication */
191 #define ICH6_REG_CORBSIZE               0x4e
192
193 #define ICH6_REG_RIRBLBASE              0x50
194 #define ICH6_REG_RIRBUBASE              0x54
195 #define ICH6_REG_RIRBWP                 0x58
196 #define   ICH6_RIRBWP_RST       (1 << 15)  /* write pointer reset */
197 #define ICH6_REG_RINTCNT                0x5a
198 #define ICH6_REG_RIRBCTL                0x5c
199 #define   ICH6_RBCTL_IRQ_EN     (1 << 0)   /* enable IRQ */
200 #define   ICH6_RBCTL_DMA_EN     (1 << 1)   /* enable DMA */
201 #define   ICH6_RBCTL_OVERRUN_EN (1 << 2)   /* enable overrun irq */
202 #define ICH6_REG_RIRBSTS                0x5d
203 #define   ICH6_RBSTS_IRQ        (1 << 0)   /* response irq */
204 #define   ICH6_RBSTS_OVERRUN    (1 << 2)   /* overrun irq */
205 #define ICH6_REG_RIRBSIZE               0x5e
206
207 #define ICH6_REG_IC                     0x60
208 #define ICH6_REG_IR                     0x64
209 #define ICH6_REG_IRS                    0x68
210 #define   ICH6_IRS_VALID        (1<<1)
211 #define   ICH6_IRS_BUSY         (1<<0)
212
213 #define ICH6_REG_DPLBASE                0x70
214 #define ICH6_REG_DPUBASE                0x74
215 #define   ICH6_DPLBASE_ENABLE   0x1     /* Enable position buffer */
216
217 /* SD offset: SDI0=0x80, SDI1=0xa0, ... SDO3=0x160 */
218 enum { SDI0, SDI1, SDI2, SDI3, SDO0, SDO1, SDO2, SDO3 };
219
220 /* stream register offsets from stream base */
221 #define ICH6_REG_SD_CTL                 0x00
222 #define ICH6_REG_SD_STS                 0x03
223 #define ICH6_REG_SD_LPIB                0x04
224 #define ICH6_REG_SD_CBL                 0x08
225 #define ICH6_REG_SD_LVI                 0x0c
226 #define ICH6_REG_SD_FIFOW               0x0e
227 #define ICH6_REG_SD_FIFOSIZE            0x10
228 #define ICH6_REG_SD_FORMAT              0x12
229 #define ICH6_REG_SD_BDLPL               0x18
230 #define ICH6_REG_SD_BDLPU               0x1c
231
232 /* PCI space */
233 #define ICH6_PCIREG_TCSEL       0x44
234
235 /*
236  * other constants
237  */
238
239 /* max number of SDs */
240 /* ICH, ATI and VIA have 4 playback and 4 capture */
241 #define ICH6_NUM_CAPTURE        4
242 #define ICH6_NUM_PLAYBACK       4
243
244 /* ULI has 6 playback and 5 capture */
245 #define ULI_NUM_CAPTURE         5
246 #define ULI_NUM_PLAYBACK        6
247
248 /* ATI HDMI has 1 playback and 0 capture */
249 #define ATIHDMI_NUM_CAPTURE     0
250 #define ATIHDMI_NUM_PLAYBACK    1
251
252 /* TERA has 4 playback and 3 capture */
253 #define TERA_NUM_CAPTURE        3
254 #define TERA_NUM_PLAYBACK       4
255
256 /* this number is statically defined for simplicity */
257 #define MAX_AZX_DEV             16
258
259 /* max number of fragments - we may use more if allocating more pages for BDL */
260 #define BDL_SIZE                4096
261 #define AZX_MAX_BDL_ENTRIES     (BDL_SIZE / 16)
262 #define AZX_MAX_FRAG            32
263 /* max buffer size - no h/w limit, you can increase as you like */
264 #define AZX_MAX_BUF_SIZE        (1024*1024*1024)
265
266 /* RIRB int mask: overrun[2], response[0] */
267 #define RIRB_INT_RESPONSE       0x01
268 #define RIRB_INT_OVERRUN        0x04
269 #define RIRB_INT_MASK           0x05
270
271 /* STATESTS int mask: S3,SD2,SD1,SD0 */
272 #define AZX_MAX_CODECS          8
273 #define AZX_DEFAULT_CODECS      4
274 #define STATESTS_INT_MASK       ((1 << AZX_MAX_CODECS) - 1)
275
276 /* SD_CTL bits */
277 #define SD_CTL_STREAM_RESET     0x01    /* stream reset bit */
278 #define SD_CTL_DMA_START        0x02    /* stream DMA start bit */
279 #define SD_CTL_STRIPE           (3 << 16)       /* stripe control */
280 #define SD_CTL_TRAFFIC_PRIO     (1 << 18)       /* traffic priority */
281 #define SD_CTL_DIR              (1 << 19)       /* bi-directional stream */
282 #define SD_CTL_STREAM_TAG_MASK  (0xf << 20)
283 #define SD_CTL_STREAM_TAG_SHIFT 20
284
285 /* SD_CTL and SD_STS */
286 #define SD_INT_DESC_ERR         0x10    /* descriptor error interrupt */
287 #define SD_INT_FIFO_ERR         0x08    /* FIFO error interrupt */
288 #define SD_INT_COMPLETE         0x04    /* completion interrupt */
289 #define SD_INT_MASK             (SD_INT_DESC_ERR|SD_INT_FIFO_ERR|\
290                                  SD_INT_COMPLETE)
291
292 /* SD_STS */
293 #define SD_STS_FIFO_READY       0x20    /* FIFO ready */
294
295 /* INTCTL and INTSTS */
296 #define ICH6_INT_ALL_STREAM     0xff       /* all stream interrupts */
297 #define ICH6_INT_CTRL_EN        0x40000000 /* controller interrupt enable bit */
298 #define ICH6_INT_GLOBAL_EN      0x80000000 /* global interrupt enable bit */
299
300 /* below are so far hardcoded - should read registers in future */
301 #define ICH6_MAX_CORB_ENTRIES   256
302 #define ICH6_MAX_RIRB_ENTRIES   256
303
304 /* position fix mode */
305 enum {
306         POS_FIX_AUTO,
307         POS_FIX_LPIB,
308         POS_FIX_POSBUF,
309         POS_FIX_VIACOMBO,
310 };
311
312 /* Defines for ATI HD Audio support in SB450 south bridge */
313 #define ATI_SB450_HDAUDIO_MISC_CNTR2_ADDR   0x42
314 #define ATI_SB450_HDAUDIO_ENABLE_SNOOP      0x02
315
316 /* Defines for Nvidia HDA support */
317 #define NVIDIA_HDA_TRANSREG_ADDR      0x4e
318 #define NVIDIA_HDA_ENABLE_COHBITS     0x0f
319 #define NVIDIA_HDA_ISTRM_COH          0x4d
320 #define NVIDIA_HDA_OSTRM_COH          0x4c
321 #define NVIDIA_HDA_ENABLE_COHBIT      0x01
322
323 /* Defines for Intel SCH HDA snoop control */
324 #define INTEL_SCH_HDA_DEVC      0x78
325 #define INTEL_SCH_HDA_DEVC_NOSNOOP       (0x1<<11)
326
327 /* Define IN stream 0 FIFO size offset in VIA controller */
328 #define VIA_IN_STREAM0_FIFO_SIZE_OFFSET 0x90
329 /* Define VIA HD Audio Device ID*/
330 #define VIA_HDAC_DEVICE_ID              0x3288
331
332 /* HD Audio class code */
333 #define PCI_CLASS_MULTIMEDIA_HD_AUDIO   0x0403
334
335 /*
336  */
337
338 struct azx_dev {
339         struct snd_dma_buffer bdl; /* BDL buffer */
340         u32 *posbuf;            /* position buffer pointer */
341
342         unsigned int bufsize;   /* size of the play buffer in bytes */
343         unsigned int period_bytes; /* size of the period in bytes */
344         unsigned int frags;     /* number for period in the play buffer */
345         unsigned int fifo_size; /* FIFO size */
346         unsigned long start_wallclk;    /* start + minimum wallclk */
347         unsigned long period_wallclk;   /* wallclk for period */
348
349         void __iomem *sd_addr;  /* stream descriptor pointer */
350
351         u32 sd_int_sta_mask;    /* stream int status mask */
352
353         /* pcm support */
354         struct snd_pcm_substream *substream;    /* assigned substream,
355                                                  * set in PCM open
356                                                  */
357         unsigned int format_val;        /* format value to be set in the
358                                          * controller and the codec
359                                          */
360         unsigned char stream_tag;       /* assigned stream */
361         unsigned char index;            /* stream index */
362         int device;                     /* last device number assigned to */
363
364         unsigned int opened :1;
365         unsigned int running :1;
366         unsigned int irq_pending :1;
367         /*
368          * For VIA:
369          *  A flag to ensure DMA position is 0
370          *  when link position is not greater than FIFO size
371          */
372         unsigned int insufficient :1;
373 };
374
375 /* CORB/RIRB */
376 struct azx_rb {
377         u32 *buf;               /* CORB/RIRB buffer
378                                  * Each CORB entry is 4byte, RIRB is 8byte
379                                  */
380         dma_addr_t addr;        /* physical address of CORB/RIRB buffer */
381         /* for RIRB */
382         unsigned short rp, wp;  /* read/write pointers */
383         int cmds[AZX_MAX_CODECS];       /* number of pending requests */
384         u32 res[AZX_MAX_CODECS];        /* last read value */
385 };
386
387 struct azx {
388         struct snd_card *card;
389         struct pci_dev *pci;
390         int dev_index;
391
392         /* chip type specific */
393         int driver_type;
394         unsigned int driver_caps;
395         int playback_streams;
396         int playback_index_offset;
397         int capture_streams;
398         int capture_index_offset;
399         int num_streams;
400
401         /* pci resources */
402         unsigned long addr;
403         void __iomem *remap_addr;
404         int irq;
405
406         /* locks */
407         spinlock_t reg_lock;
408         struct mutex open_mutex;
409
410         /* streams (x num_streams) */
411         struct azx_dev *azx_dev;
412
413         /* PCM */
414         struct snd_pcm *pcm[HDA_MAX_PCMS];
415
416         /* HD codec */
417         unsigned short codec_mask;
418         int  codec_probe_mask; /* copied from probe_mask option */
419         struct hda_bus *bus;
420         unsigned int beep_mode;
421
422         /* CORB/RIRB */
423         struct azx_rb corb;
424         struct azx_rb rirb;
425
426         /* CORB/RIRB and position buffers */
427         struct snd_dma_buffer rb;
428         struct snd_dma_buffer posbuf;
429
430         /* flags */
431         int position_fix[2]; /* for both playback/capture streams */
432         int poll_count;
433         unsigned int running :1;
434         unsigned int initialized :1;
435         unsigned int single_cmd :1;
436         unsigned int polling_mode :1;
437         unsigned int msi :1;
438         unsigned int irq_pending_warned :1;
439         unsigned int probing :1; /* codec probing phase */
440
441         /* for debugging */
442         unsigned int last_cmd[AZX_MAX_CODECS];
443
444         /* for pending irqs */
445         struct work_struct irq_pending_work;
446
447         /* reboot notifier (for mysterious hangup problem at power-down) */
448         struct notifier_block reboot_notifier;
449 };
450
451 /* driver types */
452 enum {
453         AZX_DRIVER_ICH,
454         AZX_DRIVER_PCH,
455         AZX_DRIVER_SCH,
456         AZX_DRIVER_ATI,
457         AZX_DRIVER_ATIHDMI,
458         AZX_DRIVER_VIA,
459         AZX_DRIVER_SIS,
460         AZX_DRIVER_ULI,
461         AZX_DRIVER_NVIDIA,
462         AZX_DRIVER_TERA,
463         AZX_DRIVER_CTX,
464         AZX_DRIVER_GENERIC,
465         AZX_NUM_DRIVERS, /* keep this as last entry */
466 };
467
468 /* driver quirks (capabilities) */
469 /* bits 0-7 are used for indicating driver type */
470 #define AZX_DCAPS_NO_TCSEL      (1 << 8)        /* No Intel TCSEL bit */
471 #define AZX_DCAPS_NO_MSI        (1 << 9)        /* No MSI support */
472 #define AZX_DCAPS_ATI_SNOOP     (1 << 10)       /* ATI snoop enable */
473 #define AZX_DCAPS_NVIDIA_SNOOP  (1 << 11)       /* Nvidia snoop enable */
474 #define AZX_DCAPS_SCH_SNOOP     (1 << 12)       /* SCH/PCH snoop enable */
475 #define AZX_DCAPS_RIRB_DELAY    (1 << 13)       /* Long delay in read loop */
476 #define AZX_DCAPS_RIRB_PRE_DELAY (1 << 14)      /* Put a delay before read */
477 #define AZX_DCAPS_CTX_WORKAROUND (1 << 15)      /* X-Fi workaround */
478 #define AZX_DCAPS_POSFIX_LPIB   (1 << 16)       /* Use LPIB as default */
479 #define AZX_DCAPS_POSFIX_VIA    (1 << 17)       /* Use VIACOMBO as default */
480 #define AZX_DCAPS_NO_64BIT      (1 << 18)       /* No 64bit address */
481 #define AZX_DCAPS_SYNC_WRITE    (1 << 19)       /* sync each cmd write */
482
483 /* quirks for ATI SB / AMD Hudson */
484 #define AZX_DCAPS_PRESET_ATI_SB \
485         (AZX_DCAPS_ATI_SNOOP | AZX_DCAPS_NO_TCSEL | \
486          AZX_DCAPS_SYNC_WRITE | AZX_DCAPS_POSFIX_LPIB)
487
488 /* quirks for ATI/AMD HDMI */
489 #define AZX_DCAPS_PRESET_ATI_HDMI \
490         (AZX_DCAPS_NO_TCSEL | AZX_DCAPS_SYNC_WRITE | AZX_DCAPS_POSFIX_LPIB)
491
492 /* quirks for Nvidia */
493 #define AZX_DCAPS_PRESET_NVIDIA \
494         (AZX_DCAPS_NVIDIA_SNOOP | AZX_DCAPS_RIRB_DELAY | AZX_DCAPS_NO_MSI)
495
496 static char *driver_short_names[] __devinitdata = {
497         [AZX_DRIVER_ICH] = "HDA Intel",
498         [AZX_DRIVER_PCH] = "HDA Intel PCH",
499         [AZX_DRIVER_SCH] = "HDA Intel MID",
500         [AZX_DRIVER_ATI] = "HDA ATI SB",
501         [AZX_DRIVER_ATIHDMI] = "HDA ATI HDMI",
502         [AZX_DRIVER_VIA] = "HDA VIA VT82xx",
503         [AZX_DRIVER_SIS] = "HDA SIS966",
504         [AZX_DRIVER_ULI] = "HDA ULI M5461",
505         [AZX_DRIVER_NVIDIA] = "HDA NVidia",
506         [AZX_DRIVER_TERA] = "HDA Teradici", 
507         [AZX_DRIVER_CTX] = "HDA Creative", 
508         [AZX_DRIVER_GENERIC] = "HD-Audio Generic",
509 };
510
511 /*
512  * macros for easy use
513  */
514 #define azx_writel(chip,reg,value) \
515         writel(value, (chip)->remap_addr + ICH6_REG_##reg)
516 #define azx_readl(chip,reg) \
517         readl((chip)->remap_addr + ICH6_REG_##reg)
518 #define azx_writew(chip,reg,value) \
519         writew(value, (chip)->remap_addr + ICH6_REG_##reg)
520 #define azx_readw(chip,reg) \
521         readw((chip)->remap_addr + ICH6_REG_##reg)
522 #define azx_writeb(chip,reg,value) \
523         writeb(value, (chip)->remap_addr + ICH6_REG_##reg)
524 #define azx_readb(chip,reg) \
525         readb((chip)->remap_addr + ICH6_REG_##reg)
526
527 #define azx_sd_writel(dev,reg,value) \
528         writel(value, (dev)->sd_addr + ICH6_REG_##reg)
529 #define azx_sd_readl(dev,reg) \
530         readl((dev)->sd_addr + ICH6_REG_##reg)
531 #define azx_sd_writew(dev,reg,value) \
532         writew(value, (dev)->sd_addr + ICH6_REG_##reg)
533 #define azx_sd_readw(dev,reg) \
534         readw((dev)->sd_addr + ICH6_REG_##reg)
535 #define azx_sd_writeb(dev,reg,value) \
536         writeb(value, (dev)->sd_addr + ICH6_REG_##reg)
537 #define azx_sd_readb(dev,reg) \
538         readb((dev)->sd_addr + ICH6_REG_##reg)
539
540 /* for pcm support */
541 #define get_azx_dev(substream) (substream->runtime->private_data)
542
543 static int azx_acquire_irq(struct azx *chip, int do_disconnect);
544 static int azx_send_cmd(struct hda_bus *bus, unsigned int val);
545 /*
546  * Interface for HD codec
547  */
548
549 /*
550  * CORB / RIRB interface
551  */
552 static int azx_alloc_cmd_io(struct azx *chip)
553 {
554         int err;
555
556         /* single page (at least 4096 bytes) must suffice for both ringbuffes */
557         err = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV,
558                                   snd_dma_pci_data(chip->pci),
559                                   PAGE_SIZE, &chip->rb);
560         if (err < 0) {
561                 snd_printk(KERN_ERR SFX "cannot allocate CORB/RIRB\n");
562                 return err;
563         }
564         return 0;
565 }
566
567 static void azx_init_cmd_io(struct azx *chip)
568 {
569         spin_lock_irq(&chip->reg_lock);
570         /* CORB set up */
571         chip->corb.addr = chip->rb.addr;
572         chip->corb.buf = (u32 *)chip->rb.area;
573         azx_writel(chip, CORBLBASE, (u32)chip->corb.addr);
574         azx_writel(chip, CORBUBASE, upper_32_bits(chip->corb.addr));
575
576         /* set the corb size to 256 entries (ULI requires explicitly) */
577         azx_writeb(chip, CORBSIZE, 0x02);
578         /* set the corb write pointer to 0 */
579         azx_writew(chip, CORBWP, 0);
580         /* reset the corb hw read pointer */
581         azx_writew(chip, CORBRP, ICH6_CORBRP_RST);
582         /* enable corb dma */
583         azx_writeb(chip, CORBCTL, ICH6_CORBCTL_RUN);
584
585         /* RIRB set up */
586         chip->rirb.addr = chip->rb.addr + 2048;
587         chip->rirb.buf = (u32 *)(chip->rb.area + 2048);
588         chip->rirb.wp = chip->rirb.rp = 0;
589         memset(chip->rirb.cmds, 0, sizeof(chip->rirb.cmds));
590         azx_writel(chip, RIRBLBASE, (u32)chip->rirb.addr);
591         azx_writel(chip, RIRBUBASE, upper_32_bits(chip->rirb.addr));
592
593         /* set the rirb size to 256 entries (ULI requires explicitly) */
594         azx_writeb(chip, RIRBSIZE, 0x02);
595         /* reset the rirb hw write pointer */
596         azx_writew(chip, RIRBWP, ICH6_RIRBWP_RST);
597         /* set N=1, get RIRB response interrupt for new entry */
598         if (chip->driver_caps & AZX_DCAPS_CTX_WORKAROUND)
599                 azx_writew(chip, RINTCNT, 0xc0);
600         else
601                 azx_writew(chip, RINTCNT, 1);
602         /* enable rirb dma and response irq */
603         azx_writeb(chip, RIRBCTL, ICH6_RBCTL_DMA_EN | ICH6_RBCTL_IRQ_EN);
604         spin_unlock_irq(&chip->reg_lock);
605 }
606
607 static void azx_free_cmd_io(struct azx *chip)
608 {
609         spin_lock_irq(&chip->reg_lock);
610         /* disable ringbuffer DMAs */
611         azx_writeb(chip, RIRBCTL, 0);
612         azx_writeb(chip, CORBCTL, 0);
613         spin_unlock_irq(&chip->reg_lock);
614 }
615
616 static unsigned int azx_command_addr(u32 cmd)
617 {
618         unsigned int addr = cmd >> 28;
619
620         if (addr >= AZX_MAX_CODECS) {
621                 snd_BUG();
622                 addr = 0;
623         }
624
625         return addr;
626 }
627
628 static unsigned int azx_response_addr(u32 res)
629 {
630         unsigned int addr = res & 0xf;
631
632         if (addr >= AZX_MAX_CODECS) {
633                 snd_BUG();
634                 addr = 0;
635         }
636
637         return addr;
638 }
639
640 /* send a command */
641 static int azx_corb_send_cmd(struct hda_bus *bus, u32 val)
642 {
643         struct azx *chip = bus->private_data;
644         unsigned int addr = azx_command_addr(val);
645         unsigned int wp;
646
647         spin_lock_irq(&chip->reg_lock);
648
649         /* add command to corb */
650         wp = azx_readb(chip, CORBWP);
651         wp++;
652         wp %= ICH6_MAX_CORB_ENTRIES;
653
654         chip->rirb.cmds[addr]++;
655         chip->corb.buf[wp] = cpu_to_le32(val);
656         azx_writel(chip, CORBWP, wp);
657
658         spin_unlock_irq(&chip->reg_lock);
659
660         return 0;
661 }
662
663 #define ICH6_RIRB_EX_UNSOL_EV   (1<<4)
664
665 /* retrieve RIRB entry - called from interrupt handler */
666 static void azx_update_rirb(struct azx *chip)
667 {
668         unsigned int rp, wp;
669         unsigned int addr;
670         u32 res, res_ex;
671
672         wp = azx_readb(chip, RIRBWP);
673         if (wp == chip->rirb.wp)
674                 return;
675         chip->rirb.wp = wp;
676
677         while (chip->rirb.rp != wp) {
678                 chip->rirb.rp++;
679                 chip->rirb.rp %= ICH6_MAX_RIRB_ENTRIES;
680
681                 rp = chip->rirb.rp << 1; /* an RIRB entry is 8-bytes */
682                 res_ex = le32_to_cpu(chip->rirb.buf[rp + 1]);
683                 res = le32_to_cpu(chip->rirb.buf[rp]);
684                 addr = azx_response_addr(res_ex);
685                 if (res_ex & ICH6_RIRB_EX_UNSOL_EV)
686                         snd_hda_queue_unsol_event(chip->bus, res, res_ex);
687                 else if (chip->rirb.cmds[addr]) {
688                         chip->rirb.res[addr] = res;
689                         smp_wmb();
690                         chip->rirb.cmds[addr]--;
691                 } else
692                         snd_printk(KERN_ERR SFX "spurious response %#x:%#x, "
693                                    "last cmd=%#08x\n",
694                                    res, res_ex,
695                                    chip->last_cmd[addr]);
696         }
697 }
698
699 /* receive a response */
700 static unsigned int azx_rirb_get_response(struct hda_bus *bus,
701                                           unsigned int addr)
702 {
703         struct azx *chip = bus->private_data;
704         unsigned long timeout;
705         int do_poll = 0;
706
707  again:
708         timeout = jiffies + msecs_to_jiffies(1000);
709         for (;;) {
710                 if (chip->polling_mode || do_poll) {
711                         spin_lock_irq(&chip->reg_lock);
712                         azx_update_rirb(chip);
713                         spin_unlock_irq(&chip->reg_lock);
714                 }
715                 if (!chip->rirb.cmds[addr]) {
716                         smp_rmb();
717                         bus->rirb_error = 0;
718
719                         if (!do_poll)
720                                 chip->poll_count = 0;
721                         return chip->rirb.res[addr]; /* the last value */
722                 }
723                 if (time_after(jiffies, timeout))
724                         break;
725                 if (bus->needs_damn_long_delay)
726                         msleep(2); /* temporary workaround */
727                 else {
728                         udelay(10);
729                         cond_resched();
730                 }
731         }
732
733         if (!chip->polling_mode && chip->poll_count < 2) {
734                 snd_printdd(SFX "azx_get_response timeout, "
735                            "polling the codec once: last cmd=0x%08x\n",
736                            chip->last_cmd[addr]);
737                 do_poll = 1;
738                 chip->poll_count++;
739                 goto again;
740         }
741
742
743         if (!chip->polling_mode) {
744                 snd_printk(KERN_WARNING SFX "azx_get_response timeout, "
745                            "switching to polling mode: last cmd=0x%08x\n",
746                            chip->last_cmd[addr]);
747                 chip->polling_mode = 1;
748                 goto again;
749         }
750
751         if (chip->msi) {
752                 snd_printk(KERN_WARNING SFX "No response from codec, "
753                            "disabling MSI: last cmd=0x%08x\n",
754                            chip->last_cmd[addr]);
755                 free_irq(chip->irq, chip);
756                 chip->irq = -1;
757                 pci_disable_msi(chip->pci);
758                 chip->msi = 0;
759                 if (azx_acquire_irq(chip, 1) < 0) {
760                         bus->rirb_error = 1;
761                         return -1;
762                 }
763                 goto again;
764         }
765
766         if (chip->probing) {
767                 /* If this critical timeout happens during the codec probing
768                  * phase, this is likely an access to a non-existing codec
769                  * slot.  Better to return an error and reset the system.
770                  */
771                 return -1;
772         }
773
774         /* a fatal communication error; need either to reset or to fallback
775          * to the single_cmd mode
776          */
777         bus->rirb_error = 1;
778         if (bus->allow_bus_reset && !bus->response_reset && !bus->in_reset) {
779                 bus->response_reset = 1;
780                 return -1; /* give a chance to retry */
781         }
782
783         snd_printk(KERN_ERR "hda_intel: azx_get_response timeout, "
784                    "switching to single_cmd mode: last cmd=0x%08x\n",
785                    chip->last_cmd[addr]);
786         chip->single_cmd = 1;
787         bus->response_reset = 0;
788         /* release CORB/RIRB */
789         azx_free_cmd_io(chip);
790         /* disable unsolicited responses */
791         azx_writel(chip, GCTL, azx_readl(chip, GCTL) & ~ICH6_GCTL_UNSOL);
792         return -1;
793 }
794
795 /*
796  * Use the single immediate command instead of CORB/RIRB for simplicity
797  *
798  * Note: according to Intel, this is not preferred use.  The command was
799  *       intended for the BIOS only, and may get confused with unsolicited
800  *       responses.  So, we shouldn't use it for normal operation from the
801  *       driver.
802  *       I left the codes, however, for debugging/testing purposes.
803  */
804
805 /* receive a response */
806 static int azx_single_wait_for_response(struct azx *chip, unsigned int addr)
807 {
808         int timeout = 50;
809
810         while (timeout--) {
811                 /* check IRV busy bit */
812                 if (azx_readw(chip, IRS) & ICH6_IRS_VALID) {
813                         /* reuse rirb.res as the response return value */
814                         chip->rirb.res[addr] = azx_readl(chip, IR);
815                         return 0;
816                 }
817                 udelay(1);
818         }
819         if (printk_ratelimit())
820                 snd_printd(SFX "get_response timeout: IRS=0x%x\n",
821                            azx_readw(chip, IRS));
822         chip->rirb.res[addr] = -1;
823         return -EIO;
824 }
825
826 /* send a command */
827 static int azx_single_send_cmd(struct hda_bus *bus, u32 val)
828 {
829         struct azx *chip = bus->private_data;
830         unsigned int addr = azx_command_addr(val);
831         int timeout = 50;
832
833         bus->rirb_error = 0;
834         while (timeout--) {
835                 /* check ICB busy bit */
836                 if (!((azx_readw(chip, IRS) & ICH6_IRS_BUSY))) {
837                         /* Clear IRV valid bit */
838                         azx_writew(chip, IRS, azx_readw(chip, IRS) |
839                                    ICH6_IRS_VALID);
840                         azx_writel(chip, IC, val);
841                         azx_writew(chip, IRS, azx_readw(chip, IRS) |
842                                    ICH6_IRS_BUSY);
843                         return azx_single_wait_for_response(chip, addr);
844                 }
845                 udelay(1);
846         }
847         if (printk_ratelimit())
848                 snd_printd(SFX "send_cmd timeout: IRS=0x%x, val=0x%x\n",
849                            azx_readw(chip, IRS), val);
850         return -EIO;
851 }
852
853 /* receive a response */
854 static unsigned int azx_single_get_response(struct hda_bus *bus,
855                                             unsigned int addr)
856 {
857         struct azx *chip = bus->private_data;
858         return chip->rirb.res[addr];
859 }
860
861 /*
862  * The below are the main callbacks from hda_codec.
863  *
864  * They are just the skeleton to call sub-callbacks according to the
865  * current setting of chip->single_cmd.
866  */
867
868 /* send a command */
869 static int azx_send_cmd(struct hda_bus *bus, unsigned int val)
870 {
871         struct azx *chip = bus->private_data;
872
873         chip->last_cmd[azx_command_addr(val)] = val;
874         if (chip->single_cmd)
875                 return azx_single_send_cmd(bus, val);
876         else
877                 return azx_corb_send_cmd(bus, val);
878 }
879
880 /* get a response */
881 static unsigned int azx_get_response(struct hda_bus *bus,
882                                      unsigned int addr)
883 {
884         struct azx *chip = bus->private_data;
885         if (chip->single_cmd)
886                 return azx_single_get_response(bus, addr);
887         else
888                 return azx_rirb_get_response(bus, addr);
889 }
890
891 #ifdef CONFIG_SND_HDA_POWER_SAVE
892 static void azx_power_notify(struct hda_bus *bus);
893 #endif
894
895 /* reset codec link */
896 static int azx_reset(struct azx *chip, int full_reset)
897 {
898         int count;
899
900         if (!full_reset)
901                 goto __skip;
902
903         /* clear STATESTS */
904         azx_writeb(chip, STATESTS, STATESTS_INT_MASK);
905
906         /* reset controller */
907         azx_writel(chip, GCTL, azx_readl(chip, GCTL) & ~ICH6_GCTL_RESET);
908
909         count = 50;
910         while (azx_readb(chip, GCTL) && --count)
911                 msleep(1);
912
913         /* delay for >= 100us for codec PLL to settle per spec
914          * Rev 0.9 section 5.5.1
915          */
916         msleep(1);
917
918         /* Bring controller out of reset */
919         azx_writeb(chip, GCTL, azx_readb(chip, GCTL) | ICH6_GCTL_RESET);
920
921         count = 50;
922         while (!azx_readb(chip, GCTL) && --count)
923                 msleep(1);
924
925         /* Brent Chartrand said to wait >= 540us for codecs to initialize */
926         msleep(1);
927
928       __skip:
929         /* check to see if controller is ready */
930         if (!azx_readb(chip, GCTL)) {
931                 snd_printd(SFX "azx_reset: controller not ready!\n");
932                 return -EBUSY;
933         }
934
935         /* Accept unsolicited responses */
936         if (!chip->single_cmd)
937                 azx_writel(chip, GCTL, azx_readl(chip, GCTL) |
938                            ICH6_GCTL_UNSOL);
939
940         /* detect codecs */
941         if (!chip->codec_mask) {
942                 chip->codec_mask = azx_readw(chip, STATESTS);
943                 snd_printdd(SFX "codec_mask = 0x%x\n", chip->codec_mask);
944         }
945
946         return 0;
947 }
948
949
950 /*
951  * Lowlevel interface
952  */  
953
954 /* enable interrupts */
955 static void azx_int_enable(struct azx *chip)
956 {
957         /* enable controller CIE and GIE */
958         azx_writel(chip, INTCTL, azx_readl(chip, INTCTL) |
959                    ICH6_INT_CTRL_EN | ICH6_INT_GLOBAL_EN);
960 }
961
962 /* disable interrupts */
963 static void azx_int_disable(struct azx *chip)
964 {
965         int i;
966
967         /* disable interrupts in stream descriptor */
968         for (i = 0; i < chip->num_streams; i++) {
969                 struct azx_dev *azx_dev = &chip->azx_dev[i];
970                 azx_sd_writeb(azx_dev, SD_CTL,
971                               azx_sd_readb(azx_dev, SD_CTL) & ~SD_INT_MASK);
972         }
973
974         /* disable SIE for all streams */
975         azx_writeb(chip, INTCTL, 0);
976
977         /* disable controller CIE and GIE */
978         azx_writel(chip, INTCTL, azx_readl(chip, INTCTL) &
979                    ~(ICH6_INT_CTRL_EN | ICH6_INT_GLOBAL_EN));
980 }
981
982 /* clear interrupts */
983 static void azx_int_clear(struct azx *chip)
984 {
985         int i;
986
987         /* clear stream status */
988         for (i = 0; i < chip->num_streams; i++) {
989                 struct azx_dev *azx_dev = &chip->azx_dev[i];
990                 azx_sd_writeb(azx_dev, SD_STS, SD_INT_MASK);
991         }
992
993         /* clear STATESTS */
994         azx_writeb(chip, STATESTS, STATESTS_INT_MASK);
995
996         /* clear rirb status */
997         azx_writeb(chip, RIRBSTS, RIRB_INT_MASK);
998
999         /* clear int status */
1000         azx_writel(chip, INTSTS, ICH6_INT_CTRL_EN | ICH6_INT_ALL_STREAM);
1001 }
1002
1003 /* start a stream */
1004 static void azx_stream_start(struct azx *chip, struct azx_dev *azx_dev)
1005 {
1006         /*
1007          * Before stream start, initialize parameter
1008          */
1009         azx_dev->insufficient = 1;
1010
1011         /* enable SIE */
1012         azx_writel(chip, INTCTL,
1013                    azx_readl(chip, INTCTL) | (1 << azx_dev->index));
1014         /* set DMA start and interrupt mask */
1015         azx_sd_writeb(azx_dev, SD_CTL, azx_sd_readb(azx_dev, SD_CTL) |
1016                       SD_CTL_DMA_START | SD_INT_MASK);
1017 }
1018
1019 /* stop DMA */
1020 static void azx_stream_clear(struct azx *chip, struct azx_dev *azx_dev)
1021 {
1022         azx_sd_writeb(azx_dev, SD_CTL, azx_sd_readb(azx_dev, SD_CTL) &
1023                       ~(SD_CTL_DMA_START | SD_INT_MASK));
1024         azx_sd_writeb(azx_dev, SD_STS, SD_INT_MASK); /* to be sure */
1025 }
1026
1027 /* stop a stream */
1028 static void azx_stream_stop(struct azx *chip, struct azx_dev *azx_dev)
1029 {
1030         azx_stream_clear(chip, azx_dev);
1031         /* disable SIE */
1032         azx_writel(chip, INTCTL,
1033                    azx_readl(chip, INTCTL) & ~(1 << azx_dev->index));
1034 }
1035
1036
1037 /*
1038  * reset and start the controller registers
1039  */
1040 static void azx_init_chip(struct azx *chip, int full_reset)
1041 {
1042         if (chip->initialized)
1043                 return;
1044
1045         /* reset controller */
1046         azx_reset(chip, full_reset);
1047
1048         /* initialize interrupts */
1049         azx_int_clear(chip);
1050         azx_int_enable(chip);
1051
1052         /* initialize the codec command I/O */
1053         if (!chip->single_cmd)
1054                 azx_init_cmd_io(chip);
1055
1056         /* program the position buffer */
1057         azx_writel(chip, DPLBASE, (u32)chip->posbuf.addr);
1058         azx_writel(chip, DPUBASE, upper_32_bits(chip->posbuf.addr));
1059
1060         chip->initialized = 1;
1061 }
1062
1063 /*
1064  * initialize the PCI registers
1065  */
1066 /* update bits in a PCI register byte */
1067 static void update_pci_byte(struct pci_dev *pci, unsigned int reg,
1068                             unsigned char mask, unsigned char val)
1069 {
1070         unsigned char data;
1071
1072         pci_read_config_byte(pci, reg, &data);
1073         data &= ~mask;
1074         data |= (val & mask);
1075         pci_write_config_byte(pci, reg, data);
1076 }
1077
1078 static void azx_init_pci(struct azx *chip)
1079 {
1080         unsigned short snoop;
1081
1082         /* Clear bits 0-2 of PCI register TCSEL (at offset 0x44)
1083          * TCSEL == Traffic Class Select Register, which sets PCI express QOS
1084          * Ensuring these bits are 0 clears playback static on some HD Audio
1085          * codecs.
1086          * The PCI register TCSEL is defined in the Intel manuals.
1087          */
1088         if (!(chip->driver_caps & AZX_DCAPS_NO_TCSEL)) {
1089                 snd_printdd(SFX "Clearing TCSEL\n");
1090                 update_pci_byte(chip->pci, ICH6_PCIREG_TCSEL, 0x07, 0);
1091         }
1092
1093         /* For ATI SB450/600/700/800/900 and AMD Hudson azalia HD audio,
1094          * we need to enable snoop.
1095          */
1096         if (chip->driver_caps & AZX_DCAPS_ATI_SNOOP) {
1097                 snd_printdd(SFX "Enabling ATI snoop\n");
1098                 update_pci_byte(chip->pci,
1099                                 ATI_SB450_HDAUDIO_MISC_CNTR2_ADDR, 
1100                                 0x07, ATI_SB450_HDAUDIO_ENABLE_SNOOP);
1101         }
1102
1103         /* For NVIDIA HDA, enable snoop */
1104         if (chip->driver_caps & AZX_DCAPS_NVIDIA_SNOOP) {
1105                 snd_printdd(SFX "Enabling Nvidia snoop\n");
1106                 update_pci_byte(chip->pci,
1107                                 NVIDIA_HDA_TRANSREG_ADDR,
1108                                 0x0f, NVIDIA_HDA_ENABLE_COHBITS);
1109                 update_pci_byte(chip->pci,
1110                                 NVIDIA_HDA_ISTRM_COH,
1111                                 0x01, NVIDIA_HDA_ENABLE_COHBIT);
1112                 update_pci_byte(chip->pci,
1113                                 NVIDIA_HDA_OSTRM_COH,
1114                                 0x01, NVIDIA_HDA_ENABLE_COHBIT);
1115         }
1116
1117         /* Enable SCH/PCH snoop if needed */
1118         if (chip->driver_caps & AZX_DCAPS_SCH_SNOOP) {
1119                 pci_read_config_word(chip->pci, INTEL_SCH_HDA_DEVC, &snoop);
1120                 if (snoop & INTEL_SCH_HDA_DEVC_NOSNOOP) {
1121                         pci_write_config_word(chip->pci, INTEL_SCH_HDA_DEVC,
1122                                 snoop & (~INTEL_SCH_HDA_DEVC_NOSNOOP));
1123                         pci_read_config_word(chip->pci,
1124                                 INTEL_SCH_HDA_DEVC, &snoop);
1125                         snd_printdd(SFX "HDA snoop disabled, enabling ... %s\n",
1126                                 (snoop & INTEL_SCH_HDA_DEVC_NOSNOOP)
1127                                 ? "Failed" : "OK");
1128                 }
1129         }
1130 }
1131
1132
1133 static int azx_position_ok(struct azx *chip, struct azx_dev *azx_dev);
1134
1135 /*
1136  * interrupt handler
1137  */
1138 static irqreturn_t azx_interrupt(int irq, void *dev_id)
1139 {
1140         struct azx *chip = dev_id;
1141         struct azx_dev *azx_dev;
1142         u32 status;
1143         u8 sd_status;
1144         int i, ok;
1145
1146         spin_lock(&chip->reg_lock);
1147
1148         status = azx_readl(chip, INTSTS);
1149         if (status == 0) {
1150                 spin_unlock(&chip->reg_lock);
1151                 return IRQ_NONE;
1152         }
1153         
1154         for (i = 0; i < chip->num_streams; i++) {
1155                 azx_dev = &chip->azx_dev[i];
1156                 if (status & azx_dev->sd_int_sta_mask) {
1157                         sd_status = azx_sd_readb(azx_dev, SD_STS);
1158                         azx_sd_writeb(azx_dev, SD_STS, SD_INT_MASK);
1159                         if (!azx_dev->substream || !azx_dev->running ||
1160                             !(sd_status & SD_INT_COMPLETE))
1161                                 continue;
1162                         /* check whether this IRQ is really acceptable */
1163                         ok = azx_position_ok(chip, azx_dev);
1164                         if (ok == 1) {
1165                                 azx_dev->irq_pending = 0;
1166                                 spin_unlock(&chip->reg_lock);
1167                                 snd_pcm_period_elapsed(azx_dev->substream);
1168                                 spin_lock(&chip->reg_lock);
1169                         } else if (ok == 0 && chip->bus && chip->bus->workq) {
1170                                 /* bogus IRQ, process it later */
1171                                 azx_dev->irq_pending = 1;
1172                                 queue_work(chip->bus->workq,
1173                                            &chip->irq_pending_work);
1174                         }
1175                 }
1176         }
1177
1178         /* clear rirb int */
1179         status = azx_readb(chip, RIRBSTS);
1180         if (status & RIRB_INT_MASK) {
1181                 if (status & RIRB_INT_RESPONSE) {
1182                         if (chip->driver_caps & AZX_DCAPS_RIRB_PRE_DELAY)
1183                                 udelay(80);
1184                         azx_update_rirb(chip);
1185                 }
1186                 azx_writeb(chip, RIRBSTS, RIRB_INT_MASK);
1187         }
1188
1189 #if 0
1190         /* clear state status int */
1191         if (azx_readb(chip, STATESTS) & 0x04)
1192                 azx_writeb(chip, STATESTS, 0x04);
1193 #endif
1194         spin_unlock(&chip->reg_lock);
1195         
1196         return IRQ_HANDLED;
1197 }
1198
1199
1200 /*
1201  * set up a BDL entry
1202  */
1203 static int setup_bdle(struct snd_pcm_substream *substream,
1204                       struct azx_dev *azx_dev, u32 **bdlp,
1205                       int ofs, int size, int with_ioc)
1206 {
1207         u32 *bdl = *bdlp;
1208
1209         while (size > 0) {
1210                 dma_addr_t addr;
1211                 int chunk;
1212
1213                 if (azx_dev->frags >= AZX_MAX_BDL_ENTRIES)
1214                         return -EINVAL;
1215
1216                 addr = snd_pcm_sgbuf_get_addr(substream, ofs);
1217                 /* program the address field of the BDL entry */
1218                 bdl[0] = cpu_to_le32((u32)addr);
1219                 bdl[1] = cpu_to_le32(upper_32_bits(addr));
1220                 /* program the size field of the BDL entry */
1221                 chunk = snd_pcm_sgbuf_get_chunk_size(substream, ofs, size);
1222                 bdl[2] = cpu_to_le32(chunk);
1223                 /* program the IOC to enable interrupt
1224                  * only when the whole fragment is processed
1225                  */
1226                 size -= chunk;
1227                 bdl[3] = (size || !with_ioc) ? 0 : cpu_to_le32(0x01);
1228                 bdl += 4;
1229                 azx_dev->frags++;
1230                 ofs += chunk;
1231         }
1232         *bdlp = bdl;
1233         return ofs;
1234 }
1235
1236 /*
1237  * set up BDL entries
1238  */
1239 static int azx_setup_periods(struct azx *chip,
1240                              struct snd_pcm_substream *substream,
1241                              struct azx_dev *azx_dev)
1242 {
1243         u32 *bdl;
1244         int i, ofs, periods, period_bytes;
1245         int pos_adj;
1246
1247         /* reset BDL address */
1248         azx_sd_writel(azx_dev, SD_BDLPL, 0);
1249         azx_sd_writel(azx_dev, SD_BDLPU, 0);
1250
1251         period_bytes = azx_dev->period_bytes;
1252         periods = azx_dev->bufsize / period_bytes;
1253
1254         /* program the initial BDL entries */
1255         bdl = (u32 *)azx_dev->bdl.area;
1256         ofs = 0;
1257         azx_dev->frags = 0;
1258         pos_adj = bdl_pos_adj[chip->dev_index];
1259         if (pos_adj > 0) {
1260                 struct snd_pcm_runtime *runtime = substream->runtime;
1261                 int pos_align = pos_adj;
1262                 pos_adj = (pos_adj * runtime->rate + 47999) / 48000;
1263                 if (!pos_adj)
1264                         pos_adj = pos_align;
1265                 else
1266                         pos_adj = ((pos_adj + pos_align - 1) / pos_align) *
1267                                 pos_align;
1268                 pos_adj = frames_to_bytes(runtime, pos_adj);
1269                 if (pos_adj >= period_bytes) {
1270                         snd_printk(KERN_WARNING SFX "Too big adjustment %d\n",
1271                                    bdl_pos_adj[chip->dev_index]);
1272                         pos_adj = 0;
1273                 } else {
1274                         ofs = setup_bdle(substream, azx_dev,
1275                                          &bdl, ofs, pos_adj,
1276                                          !substream->runtime->no_period_wakeup);
1277                         if (ofs < 0)
1278                                 goto error;
1279                 }
1280         } else
1281                 pos_adj = 0;
1282         for (i = 0; i < periods; i++) {
1283                 if (i == periods - 1 && pos_adj)
1284                         ofs = setup_bdle(substream, azx_dev, &bdl, ofs,
1285                                          period_bytes - pos_adj, 0);
1286                 else
1287                         ofs = setup_bdle(substream, azx_dev, &bdl, ofs,
1288                                          period_bytes,
1289                                          !substream->runtime->no_period_wakeup);
1290                 if (ofs < 0)
1291                         goto error;
1292         }
1293         return 0;
1294
1295  error:
1296         snd_printk(KERN_ERR SFX "Too many BDL entries: buffer=%d, period=%d\n",
1297                    azx_dev->bufsize, period_bytes);
1298         return -EINVAL;
1299 }
1300
1301 /* reset stream */
1302 static void azx_stream_reset(struct azx *chip, struct azx_dev *azx_dev)
1303 {
1304         unsigned char val;
1305         int timeout;
1306
1307         azx_stream_clear(chip, azx_dev);
1308
1309         azx_sd_writeb(azx_dev, SD_CTL, azx_sd_readb(azx_dev, SD_CTL) |
1310                       SD_CTL_STREAM_RESET);
1311         udelay(3);
1312         timeout = 300;
1313         while (!((val = azx_sd_readb(azx_dev, SD_CTL)) & SD_CTL_STREAM_RESET) &&
1314                --timeout)
1315                 ;
1316         val &= ~SD_CTL_STREAM_RESET;
1317         azx_sd_writeb(azx_dev, SD_CTL, val);
1318         udelay(3);
1319
1320         timeout = 300;
1321         /* waiting for hardware to report that the stream is out of reset */
1322         while (((val = azx_sd_readb(azx_dev, SD_CTL)) & SD_CTL_STREAM_RESET) &&
1323                --timeout)
1324                 ;
1325
1326         /* reset first position - may not be synced with hw at this time */
1327         *azx_dev->posbuf = 0;
1328 }
1329
1330 /*
1331  * set up the SD for streaming
1332  */
1333 static int azx_setup_controller(struct azx *chip, struct azx_dev *azx_dev)
1334 {
1335         /* make sure the run bit is zero for SD */
1336         azx_stream_clear(chip, azx_dev);
1337         /* program the stream_tag */
1338         azx_sd_writel(azx_dev, SD_CTL,
1339                       (azx_sd_readl(azx_dev, SD_CTL) & ~SD_CTL_STREAM_TAG_MASK)|
1340                       (azx_dev->stream_tag << SD_CTL_STREAM_TAG_SHIFT));
1341
1342         /* program the length of samples in cyclic buffer */
1343         azx_sd_writel(azx_dev, SD_CBL, azx_dev->bufsize);
1344
1345         /* program the stream format */
1346         /* this value needs to be the same as the one programmed */
1347         azx_sd_writew(azx_dev, SD_FORMAT, azx_dev->format_val);
1348
1349         /* program the stream LVI (last valid index) of the BDL */
1350         azx_sd_writew(azx_dev, SD_LVI, azx_dev->frags - 1);
1351
1352         /* program the BDL address */
1353         /* lower BDL address */
1354         azx_sd_writel(azx_dev, SD_BDLPL, (u32)azx_dev->bdl.addr);
1355         /* upper BDL address */
1356         azx_sd_writel(azx_dev, SD_BDLPU, upper_32_bits(azx_dev->bdl.addr));
1357
1358         /* enable the position buffer */
1359         if (chip->position_fix[0] != POS_FIX_LPIB ||
1360             chip->position_fix[1] != POS_FIX_LPIB) {
1361                 if (!(azx_readl(chip, DPLBASE) & ICH6_DPLBASE_ENABLE))
1362                         azx_writel(chip, DPLBASE,
1363                                 (u32)chip->posbuf.addr | ICH6_DPLBASE_ENABLE);
1364         }
1365
1366         /* set the interrupt enable bits in the descriptor control register */
1367         azx_sd_writel(azx_dev, SD_CTL,
1368                       azx_sd_readl(azx_dev, SD_CTL) | SD_INT_MASK);
1369
1370         return 0;
1371 }
1372
1373 /*
1374  * Probe the given codec address
1375  */
1376 static int probe_codec(struct azx *chip, int addr)
1377 {
1378         unsigned int cmd = (addr << 28) | (AC_NODE_ROOT << 20) |
1379                 (AC_VERB_PARAMETERS << 8) | AC_PAR_VENDOR_ID;
1380         unsigned int res;
1381
1382         mutex_lock(&chip->bus->cmd_mutex);
1383         chip->probing = 1;
1384         azx_send_cmd(chip->bus, cmd);
1385         res = azx_get_response(chip->bus, addr);
1386         chip->probing = 0;
1387         mutex_unlock(&chip->bus->cmd_mutex);
1388         if (res == -1)
1389                 return -EIO;
1390         snd_printdd(SFX "codec #%d probed OK\n", addr);
1391         return 0;
1392 }
1393
1394 static int azx_attach_pcm_stream(struct hda_bus *bus, struct hda_codec *codec,
1395                                  struct hda_pcm *cpcm);
1396 static void azx_stop_chip(struct azx *chip);
1397
1398 static void azx_bus_reset(struct hda_bus *bus)
1399 {
1400         struct azx *chip = bus->private_data;
1401
1402         bus->in_reset = 1;
1403         azx_stop_chip(chip);
1404         azx_init_chip(chip, 1);
1405 #ifdef CONFIG_PM
1406         if (chip->initialized) {
1407                 int i;
1408
1409                 for (i = 0; i < HDA_MAX_PCMS; i++)
1410                         snd_pcm_suspend_all(chip->pcm[i]);
1411                 snd_hda_suspend(chip->bus);
1412                 snd_hda_resume(chip->bus);
1413         }
1414 #endif
1415         bus->in_reset = 0;
1416 }
1417
1418 /*
1419  * Codec initialization
1420  */
1421
1422 /* number of codec slots for each chipset: 0 = default slots (i.e. 4) */
1423 static unsigned int azx_max_codecs[AZX_NUM_DRIVERS] __devinitdata = {
1424         [AZX_DRIVER_NVIDIA] = 8,
1425         [AZX_DRIVER_TERA] = 1,
1426 };
1427
1428 static int __devinit azx_codec_create(struct azx *chip, const char *model)
1429 {
1430         struct hda_bus_template bus_temp;
1431         int c, codecs, err;
1432         int max_slots;
1433
1434         memset(&bus_temp, 0, sizeof(bus_temp));
1435         bus_temp.private_data = chip;
1436         bus_temp.modelname = model;
1437         bus_temp.pci = chip->pci;
1438         bus_temp.ops.command = azx_send_cmd;
1439         bus_temp.ops.get_response = azx_get_response;
1440         bus_temp.ops.attach_pcm = azx_attach_pcm_stream;
1441         bus_temp.ops.bus_reset = azx_bus_reset;
1442 #ifdef CONFIG_SND_HDA_POWER_SAVE
1443         bus_temp.power_save = &power_save;
1444         bus_temp.ops.pm_notify = azx_power_notify;
1445 #endif
1446
1447         err = snd_hda_bus_new(chip->card, &bus_temp, &chip->bus);
1448         if (err < 0)
1449                 return err;
1450
1451         if (chip->driver_caps & AZX_DCAPS_RIRB_DELAY) {
1452                 snd_printd(SFX "Enable delay in RIRB handling\n");
1453                 chip->bus->needs_damn_long_delay = 1;
1454         }
1455
1456         codecs = 0;
1457         max_slots = azx_max_codecs[chip->driver_type];
1458         if (!max_slots)
1459                 max_slots = AZX_DEFAULT_CODECS;
1460
1461         /* First try to probe all given codec slots */
1462         for (c = 0; c < max_slots; c++) {
1463                 if ((chip->codec_mask & (1 << c)) & chip->codec_probe_mask) {
1464                         if (probe_codec(chip, c) < 0) {
1465                                 /* Some BIOSen give you wrong codec addresses
1466                                  * that don't exist
1467                                  */
1468                                 snd_printk(KERN_WARNING SFX
1469                                            "Codec #%d probe error; "
1470                                            "disabling it...\n", c);
1471                                 chip->codec_mask &= ~(1 << c);
1472                                 /* More badly, accessing to a non-existing
1473                                  * codec often screws up the controller chip,
1474                                  * and disturbs the further communications.
1475                                  * Thus if an error occurs during probing,
1476                                  * better to reset the controller chip to
1477                                  * get back to the sanity state.
1478                                  */
1479                                 azx_stop_chip(chip);
1480                                 azx_init_chip(chip, 1);
1481                         }
1482                 }
1483         }
1484
1485         /* AMD chipsets often cause the communication stalls upon certain
1486          * sequence like the pin-detection.  It seems that forcing the synced
1487          * access works around the stall.  Grrr...
1488          */
1489         if (chip->driver_caps & AZX_DCAPS_SYNC_WRITE) {
1490                 snd_printd(SFX "Enable sync_write for stable communication\n");
1491                 chip->bus->sync_write = 1;
1492                 chip->bus->allow_bus_reset = 1;
1493         }
1494
1495         /* Then create codec instances */
1496         for (c = 0; c < max_slots; c++) {
1497                 if ((chip->codec_mask & (1 << c)) & chip->codec_probe_mask) {
1498                         struct hda_codec *codec;
1499                         err = snd_hda_codec_new(chip->bus, c, &codec);
1500                         if (err < 0)
1501                                 continue;
1502                         codec->beep_mode = chip->beep_mode;
1503                         codecs++;
1504                 }
1505         }
1506         if (!codecs) {
1507                 snd_printk(KERN_ERR SFX "no codecs initialized\n");
1508                 return -ENXIO;
1509         }
1510         return 0;
1511 }
1512
1513 /* configure each codec instance */
1514 static int __devinit azx_codec_configure(struct azx *chip)
1515 {
1516         struct hda_codec *codec;
1517         list_for_each_entry(codec, &chip->bus->codec_list, list) {
1518                 snd_hda_codec_configure(codec);
1519         }
1520         return 0;
1521 }
1522
1523
1524 /*
1525  * PCM support
1526  */
1527
1528 /* assign a stream for the PCM */
1529 static inline struct azx_dev *
1530 azx_assign_device(struct azx *chip, struct snd_pcm_substream *substream)
1531 {
1532         int dev, i, nums;
1533         struct azx_dev *res = NULL;
1534
1535         if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
1536                 dev = chip->playback_index_offset;
1537                 nums = chip->playback_streams;
1538         } else {
1539                 dev = chip->capture_index_offset;
1540                 nums = chip->capture_streams;
1541         }
1542         for (i = 0; i < nums; i++, dev++)
1543                 if (!chip->azx_dev[dev].opened) {
1544                         res = &chip->azx_dev[dev];
1545                         if (res->device == substream->pcm->device)
1546                                 break;
1547                 }
1548         if (res) {
1549                 res->opened = 1;
1550                 res->device = substream->pcm->device;
1551         }
1552         return res;
1553 }
1554
1555 /* release the assigned stream */
1556 static inline void azx_release_device(struct azx_dev *azx_dev)
1557 {
1558         azx_dev->opened = 0;
1559 }
1560
1561 static struct snd_pcm_hardware azx_pcm_hw = {
1562         .info =                 (SNDRV_PCM_INFO_MMAP |
1563                                  SNDRV_PCM_INFO_INTERLEAVED |
1564                                  SNDRV_PCM_INFO_BLOCK_TRANSFER |
1565                                  SNDRV_PCM_INFO_MMAP_VALID |
1566                                  /* No full-resume yet implemented */
1567                                  /* SNDRV_PCM_INFO_RESUME |*/
1568                                  SNDRV_PCM_INFO_PAUSE |
1569                                  SNDRV_PCM_INFO_SYNC_START |
1570                                  SNDRV_PCM_INFO_NO_PERIOD_WAKEUP),
1571         .formats =              SNDRV_PCM_FMTBIT_S16_LE,
1572         .rates =                SNDRV_PCM_RATE_48000,
1573         .rate_min =             48000,
1574         .rate_max =             48000,
1575         .channels_min =         2,
1576         .channels_max =         2,
1577         .buffer_bytes_max =     AZX_MAX_BUF_SIZE,
1578         .period_bytes_min =     128,
1579         .period_bytes_max =     AZX_MAX_BUF_SIZE / 2,
1580         .periods_min =          2,
1581         .periods_max =          AZX_MAX_FRAG,
1582         .fifo_size =            0,
1583 };
1584
1585 struct azx_pcm {
1586         struct azx *chip;
1587         struct hda_codec *codec;
1588         struct hda_pcm_stream *hinfo[2];
1589 };
1590
1591 static int azx_pcm_open(struct snd_pcm_substream *substream)
1592 {
1593         struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
1594         struct hda_pcm_stream *hinfo = apcm->hinfo[substream->stream];
1595         struct azx *chip = apcm->chip;
1596         struct azx_dev *azx_dev;
1597         struct snd_pcm_runtime *runtime = substream->runtime;
1598         unsigned long flags;
1599         int err;
1600
1601         mutex_lock(&chip->open_mutex);
1602         azx_dev = azx_assign_device(chip, substream);
1603         if (azx_dev == NULL) {
1604                 mutex_unlock(&chip->open_mutex);
1605                 return -EBUSY;
1606         }
1607         runtime->hw = azx_pcm_hw;
1608         runtime->hw.channels_min = hinfo->channels_min;
1609         runtime->hw.channels_max = hinfo->channels_max;
1610         runtime->hw.formats = hinfo->formats;
1611         runtime->hw.rates = hinfo->rates;
1612         snd_pcm_limit_hw_rates(runtime);
1613         snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS);
1614         snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_BUFFER_BYTES,
1615                                    128);
1616         snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES,
1617                                    128);
1618         snd_hda_power_up(apcm->codec);
1619         err = hinfo->ops.open(hinfo, apcm->codec, substream);
1620         if (err < 0) {
1621                 azx_release_device(azx_dev);
1622                 snd_hda_power_down(apcm->codec);
1623                 mutex_unlock(&chip->open_mutex);
1624                 return err;
1625         }
1626         snd_pcm_limit_hw_rates(runtime);
1627         /* sanity check */
1628         if (snd_BUG_ON(!runtime->hw.channels_min) ||
1629             snd_BUG_ON(!runtime->hw.channels_max) ||
1630             snd_BUG_ON(!runtime->hw.formats) ||
1631             snd_BUG_ON(!runtime->hw.rates)) {
1632                 azx_release_device(azx_dev);
1633                 hinfo->ops.close(hinfo, apcm->codec, substream);
1634                 snd_hda_power_down(apcm->codec);
1635                 mutex_unlock(&chip->open_mutex);
1636                 return -EINVAL;
1637         }
1638         spin_lock_irqsave(&chip->reg_lock, flags);
1639         azx_dev->substream = substream;
1640         azx_dev->running = 0;
1641         spin_unlock_irqrestore(&chip->reg_lock, flags);
1642
1643         runtime->private_data = azx_dev;
1644         snd_pcm_set_sync(substream);
1645         mutex_unlock(&chip->open_mutex);
1646         return 0;
1647 }
1648
1649 static int azx_pcm_close(struct snd_pcm_substream *substream)
1650 {
1651         struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
1652         struct hda_pcm_stream *hinfo = apcm->hinfo[substream->stream];
1653         struct azx *chip = apcm->chip;
1654         struct azx_dev *azx_dev = get_azx_dev(substream);
1655         unsigned long flags;
1656
1657         mutex_lock(&chip->open_mutex);
1658         spin_lock_irqsave(&chip->reg_lock, flags);
1659         azx_dev->substream = NULL;
1660         azx_dev->running = 0;
1661         spin_unlock_irqrestore(&chip->reg_lock, flags);
1662         azx_release_device(azx_dev);
1663         hinfo->ops.close(hinfo, apcm->codec, substream);
1664         snd_hda_power_down(apcm->codec);
1665         mutex_unlock(&chip->open_mutex);
1666         return 0;
1667 }
1668
1669 static int azx_pcm_hw_params(struct snd_pcm_substream *substream,
1670                              struct snd_pcm_hw_params *hw_params)
1671 {
1672         struct azx_dev *azx_dev = get_azx_dev(substream);
1673
1674         azx_dev->bufsize = 0;
1675         azx_dev->period_bytes = 0;
1676         azx_dev->format_val = 0;
1677         return snd_pcm_lib_malloc_pages(substream,
1678                                         params_buffer_bytes(hw_params));
1679 }
1680
1681 static int azx_pcm_hw_free(struct snd_pcm_substream *substream)
1682 {
1683         struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
1684         struct azx_dev *azx_dev = get_azx_dev(substream);
1685         struct hda_pcm_stream *hinfo = apcm->hinfo[substream->stream];
1686
1687         /* reset BDL address */
1688         azx_sd_writel(azx_dev, SD_BDLPL, 0);
1689         azx_sd_writel(azx_dev, SD_BDLPU, 0);
1690         azx_sd_writel(azx_dev, SD_CTL, 0);
1691         azx_dev->bufsize = 0;
1692         azx_dev->period_bytes = 0;
1693         azx_dev->format_val = 0;
1694
1695         snd_hda_codec_cleanup(apcm->codec, hinfo, substream);
1696
1697         return snd_pcm_lib_free_pages(substream);
1698 }
1699
1700 static int azx_pcm_prepare(struct snd_pcm_substream *substream)
1701 {
1702         struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
1703         struct azx *chip = apcm->chip;
1704         struct azx_dev *azx_dev = get_azx_dev(substream);
1705         struct hda_pcm_stream *hinfo = apcm->hinfo[substream->stream];
1706         struct snd_pcm_runtime *runtime = substream->runtime;
1707         unsigned int bufsize, period_bytes, format_val, stream_tag;
1708         int err;
1709
1710         azx_stream_reset(chip, azx_dev);
1711         format_val = snd_hda_calc_stream_format(runtime->rate,
1712                                                 runtime->channels,
1713                                                 runtime->format,
1714                                                 hinfo->maxbps,
1715                                                 apcm->codec->spdif_ctls);
1716         if (!format_val) {
1717                 snd_printk(KERN_ERR SFX
1718                            "invalid format_val, rate=%d, ch=%d, format=%d\n",
1719                            runtime->rate, runtime->channels, runtime->format);
1720                 return -EINVAL;
1721         }
1722
1723         bufsize = snd_pcm_lib_buffer_bytes(substream);
1724         period_bytes = snd_pcm_lib_period_bytes(substream);
1725
1726         snd_printdd(SFX "azx_pcm_prepare: bufsize=0x%x, format=0x%x\n",
1727                     bufsize, format_val);
1728
1729         if (bufsize != azx_dev->bufsize ||
1730             period_bytes != azx_dev->period_bytes ||
1731             format_val != azx_dev->format_val) {
1732                 azx_dev->bufsize = bufsize;
1733                 azx_dev->period_bytes = period_bytes;
1734                 azx_dev->format_val = format_val;
1735                 err = azx_setup_periods(chip, substream, azx_dev);
1736                 if (err < 0)
1737                         return err;
1738         }
1739
1740         /* wallclk has 24Mhz clock source */
1741         azx_dev->period_wallclk = (((runtime->period_size * 24000) /
1742                                                 runtime->rate) * 1000);
1743         azx_setup_controller(chip, azx_dev);
1744         if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
1745                 azx_dev->fifo_size = azx_sd_readw(azx_dev, SD_FIFOSIZE) + 1;
1746         else
1747                 azx_dev->fifo_size = 0;
1748
1749         stream_tag = azx_dev->stream_tag;
1750         /* CA-IBG chips need the playback stream starting from 1 */
1751         if ((chip->driver_caps & AZX_DCAPS_CTX_WORKAROUND) &&
1752             stream_tag > chip->capture_streams)
1753                 stream_tag -= chip->capture_streams;
1754         return snd_hda_codec_prepare(apcm->codec, hinfo, stream_tag,
1755                                      azx_dev->format_val, substream);
1756 }
1757
1758 static int azx_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
1759 {
1760         struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
1761         struct azx *chip = apcm->chip;
1762         struct azx_dev *azx_dev;
1763         struct snd_pcm_substream *s;
1764         int rstart = 0, start, nsync = 0, sbits = 0;
1765         int nwait, timeout;
1766
1767         switch (cmd) {
1768         case SNDRV_PCM_TRIGGER_START:
1769                 rstart = 1;
1770         case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
1771         case SNDRV_PCM_TRIGGER_RESUME:
1772                 start = 1;
1773                 break;
1774         case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
1775         case SNDRV_PCM_TRIGGER_SUSPEND:
1776         case SNDRV_PCM_TRIGGER_STOP:
1777                 start = 0;
1778                 break;
1779         default:
1780                 return -EINVAL;
1781         }
1782
1783         snd_pcm_group_for_each_entry(s, substream) {
1784                 if (s->pcm->card != substream->pcm->card)
1785                         continue;
1786                 azx_dev = get_azx_dev(s);
1787                 sbits |= 1 << azx_dev->index;
1788                 nsync++;
1789                 snd_pcm_trigger_done(s, substream);
1790         }
1791
1792         spin_lock(&chip->reg_lock);
1793         if (nsync > 1) {
1794                 /* first, set SYNC bits of corresponding streams */
1795                 azx_writel(chip, SYNC, azx_readl(chip, SYNC) | sbits);
1796         }
1797         snd_pcm_group_for_each_entry(s, substream) {
1798                 if (s->pcm->card != substream->pcm->card)
1799                         continue;
1800                 azx_dev = get_azx_dev(s);
1801                 if (start) {
1802                         azx_dev->start_wallclk = azx_readl(chip, WALLCLK);
1803                         if (!rstart)
1804                                 azx_dev->start_wallclk -=
1805                                                 azx_dev->period_wallclk;
1806                         azx_stream_start(chip, azx_dev);
1807                 } else {
1808                         azx_stream_stop(chip, azx_dev);
1809                 }
1810                 azx_dev->running = start;
1811         }
1812         spin_unlock(&chip->reg_lock);
1813         if (start) {
1814                 if (nsync == 1)
1815                         return 0;
1816                 /* wait until all FIFOs get ready */
1817                 for (timeout = 5000; timeout; timeout--) {
1818                         nwait = 0;
1819                         snd_pcm_group_for_each_entry(s, substream) {
1820                                 if (s->pcm->card != substream->pcm->card)
1821                                         continue;
1822                                 azx_dev = get_azx_dev(s);
1823                                 if (!(azx_sd_readb(azx_dev, SD_STS) &
1824                                       SD_STS_FIFO_READY))
1825                                         nwait++;
1826                         }
1827                         if (!nwait)
1828                                 break;
1829                         cpu_relax();
1830                 }
1831         } else {
1832                 /* wait until all RUN bits are cleared */
1833                 for (timeout = 5000; timeout; timeout--) {
1834                         nwait = 0;
1835                         snd_pcm_group_for_each_entry(s, substream) {
1836                                 if (s->pcm->card != substream->pcm->card)
1837                                         continue;
1838                                 azx_dev = get_azx_dev(s);
1839                                 if (azx_sd_readb(azx_dev, SD_CTL) &
1840                                     SD_CTL_DMA_START)
1841                                         nwait++;
1842                         }
1843                         if (!nwait)
1844                                 break;
1845                         cpu_relax();
1846                 }
1847         }
1848         if (nsync > 1) {
1849                 spin_lock(&chip->reg_lock);
1850                 /* reset SYNC bits */
1851                 azx_writel(chip, SYNC, azx_readl(chip, SYNC) & ~sbits);
1852                 spin_unlock(&chip->reg_lock);
1853         }
1854         return 0;
1855 }
1856
1857 /* get the current DMA position with correction on VIA chips */
1858 static unsigned int azx_via_get_position(struct azx *chip,
1859                                          struct azx_dev *azx_dev)
1860 {
1861         unsigned int link_pos, mini_pos, bound_pos;
1862         unsigned int mod_link_pos, mod_dma_pos, mod_mini_pos;
1863         unsigned int fifo_size;
1864
1865         link_pos = azx_sd_readl(azx_dev, SD_LPIB);
1866         if (azx_dev->index >= 4) {
1867                 /* Playback, no problem using link position */
1868                 return link_pos;
1869         }
1870
1871         /* Capture */
1872         /* For new chipset,
1873          * use mod to get the DMA position just like old chipset
1874          */
1875         mod_dma_pos = le32_to_cpu(*azx_dev->posbuf);
1876         mod_dma_pos %= azx_dev->period_bytes;
1877
1878         /* azx_dev->fifo_size can't get FIFO size of in stream.
1879          * Get from base address + offset.
1880          */
1881         fifo_size = readw(chip->remap_addr + VIA_IN_STREAM0_FIFO_SIZE_OFFSET);
1882
1883         if (azx_dev->insufficient) {
1884                 /* Link position never gather than FIFO size */
1885                 if (link_pos <= fifo_size)
1886                         return 0;
1887
1888                 azx_dev->insufficient = 0;
1889         }
1890
1891         if (link_pos <= fifo_size)
1892                 mini_pos = azx_dev->bufsize + link_pos - fifo_size;
1893         else
1894                 mini_pos = link_pos - fifo_size;
1895
1896         /* Find nearest previous boudary */
1897         mod_mini_pos = mini_pos % azx_dev->period_bytes;
1898         mod_link_pos = link_pos % azx_dev->period_bytes;
1899         if (mod_link_pos >= fifo_size)
1900                 bound_pos = link_pos - mod_link_pos;
1901         else if (mod_dma_pos >= mod_mini_pos)
1902                 bound_pos = mini_pos - mod_mini_pos;
1903         else {
1904                 bound_pos = mini_pos - mod_mini_pos + azx_dev->period_bytes;
1905                 if (bound_pos >= azx_dev->bufsize)
1906                         bound_pos = 0;
1907         }
1908
1909         /* Calculate real DMA position we want */
1910         return bound_pos + mod_dma_pos;
1911 }
1912
1913 static unsigned int azx_get_position(struct azx *chip,
1914                                      struct azx_dev *azx_dev)
1915 {
1916         unsigned int pos;
1917         int stream = azx_dev->substream->stream;
1918
1919         switch (chip->position_fix[stream]) {
1920         case POS_FIX_LPIB:
1921                 /* read LPIB */
1922                 pos = azx_sd_readl(azx_dev, SD_LPIB);
1923                 break;
1924         case POS_FIX_VIACOMBO:
1925                 pos = azx_via_get_position(chip, azx_dev);
1926                 break;
1927         default:
1928                 /* use the position buffer */
1929                 pos = le32_to_cpu(*azx_dev->posbuf);
1930         }
1931
1932         if (pos >= azx_dev->bufsize)
1933                 pos = 0;
1934         return pos;
1935 }
1936
1937 static snd_pcm_uframes_t azx_pcm_pointer(struct snd_pcm_substream *substream)
1938 {
1939         struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
1940         struct azx *chip = apcm->chip;
1941         struct azx_dev *azx_dev = get_azx_dev(substream);
1942         return bytes_to_frames(substream->runtime,
1943                                azx_get_position(chip, azx_dev));
1944 }
1945
1946 /*
1947  * Check whether the current DMA position is acceptable for updating
1948  * periods.  Returns non-zero if it's OK.
1949  *
1950  * Many HD-audio controllers appear pretty inaccurate about
1951  * the update-IRQ timing.  The IRQ is issued before actually the
1952  * data is processed.  So, we need to process it afterwords in a
1953  * workqueue.
1954  */
1955 static int azx_position_ok(struct azx *chip, struct azx_dev *azx_dev)
1956 {
1957         u32 wallclk;
1958         unsigned int pos;
1959         int stream;
1960
1961         wallclk = azx_readl(chip, WALLCLK) - azx_dev->start_wallclk;
1962         if (wallclk < (azx_dev->period_wallclk * 2) / 3)
1963                 return -1;      /* bogus (too early) interrupt */
1964
1965         stream = azx_dev->substream->stream;
1966         pos = azx_get_position(chip, azx_dev);
1967         if (chip->position_fix[stream] == POS_FIX_AUTO) {
1968                 if (!pos) {
1969                         printk(KERN_WARNING
1970                                "hda-intel: Invalid position buffer, "
1971                                "using LPIB read method instead.\n");
1972                         chip->position_fix[stream] = POS_FIX_LPIB;
1973                         pos = azx_get_position(chip, azx_dev);
1974                 } else
1975                         chip->position_fix[stream] = POS_FIX_POSBUF;
1976         }
1977
1978         if (WARN_ONCE(!azx_dev->period_bytes,
1979                       "hda-intel: zero azx_dev->period_bytes"))
1980                 return -1; /* this shouldn't happen! */
1981         if (wallclk < (azx_dev->period_wallclk * 5) / 4 &&
1982             pos % azx_dev->period_bytes > azx_dev->period_bytes / 2)
1983                 /* NG - it's below the first next period boundary */
1984                 return bdl_pos_adj[chip->dev_index] ? 0 : -1;
1985         azx_dev->start_wallclk += wallclk;
1986         return 1; /* OK, it's fine */
1987 }
1988
1989 /*
1990  * The work for pending PCM period updates.
1991  */
1992 static void azx_irq_pending_work(struct work_struct *work)
1993 {
1994         struct azx *chip = container_of(work, struct azx, irq_pending_work);
1995         int i, pending, ok;
1996
1997         if (!chip->irq_pending_warned) {
1998                 printk(KERN_WARNING
1999                        "hda-intel: IRQ timing workaround is activated "
2000                        "for card #%d. Suggest a bigger bdl_pos_adj.\n",
2001                        chip->card->number);
2002                 chip->irq_pending_warned = 1;
2003         }
2004
2005         for (;;) {
2006                 pending = 0;
2007                 spin_lock_irq(&chip->reg_lock);
2008                 for (i = 0; i < chip->num_streams; i++) {
2009                         struct azx_dev *azx_dev = &chip->azx_dev[i];
2010                         if (!azx_dev->irq_pending ||
2011                             !azx_dev->substream ||
2012                             !azx_dev->running)
2013                                 continue;
2014                         ok = azx_position_ok(chip, azx_dev);
2015                         if (ok > 0) {
2016                                 azx_dev->irq_pending = 0;
2017                                 spin_unlock(&chip->reg_lock);
2018                                 snd_pcm_period_elapsed(azx_dev->substream);
2019                                 spin_lock(&chip->reg_lock);
2020                         } else if (ok < 0) {
2021                                 pending = 0;    /* too early */
2022                         } else
2023                                 pending++;
2024                 }
2025                 spin_unlock_irq(&chip->reg_lock);
2026                 if (!pending)
2027                         return;
2028                 msleep(1);
2029         }
2030 }
2031
2032 /* clear irq_pending flags and assure no on-going workq */
2033 static void azx_clear_irq_pending(struct azx *chip)
2034 {
2035         int i;
2036
2037         spin_lock_irq(&chip->reg_lock);
2038         for (i = 0; i < chip->num_streams; i++)
2039                 chip->azx_dev[i].irq_pending = 0;
2040         spin_unlock_irq(&chip->reg_lock);
2041 }
2042
2043 static struct snd_pcm_ops azx_pcm_ops = {
2044         .open = azx_pcm_open,
2045         .close = azx_pcm_close,
2046         .ioctl = snd_pcm_lib_ioctl,
2047         .hw_params = azx_pcm_hw_params,
2048         .hw_free = azx_pcm_hw_free,
2049         .prepare = azx_pcm_prepare,
2050         .trigger = azx_pcm_trigger,
2051         .pointer = azx_pcm_pointer,
2052         .page = snd_pcm_sgbuf_ops_page,
2053 };
2054
2055 static void azx_pcm_free(struct snd_pcm *pcm)
2056 {
2057         struct azx_pcm *apcm = pcm->private_data;
2058         if (apcm) {
2059                 apcm->chip->pcm[pcm->device] = NULL;
2060                 kfree(apcm);
2061         }
2062 }
2063
2064 static int
2065 azx_attach_pcm_stream(struct hda_bus *bus, struct hda_codec *codec,
2066                       struct hda_pcm *cpcm)
2067 {
2068         struct azx *chip = bus->private_data;
2069         struct snd_pcm *pcm;
2070         struct azx_pcm *apcm;
2071         int pcm_dev = cpcm->device;
2072         int s, err;
2073
2074         if (pcm_dev >= HDA_MAX_PCMS) {
2075                 snd_printk(KERN_ERR SFX "Invalid PCM device number %d\n",
2076                            pcm_dev);
2077                 return -EINVAL;
2078         }
2079         if (chip->pcm[pcm_dev]) {
2080                 snd_printk(KERN_ERR SFX "PCM %d already exists\n", pcm_dev);
2081                 return -EBUSY;
2082         }
2083         err = snd_pcm_new(chip->card, cpcm->name, pcm_dev,
2084                           cpcm->stream[SNDRV_PCM_STREAM_PLAYBACK].substreams,
2085                           cpcm->stream[SNDRV_PCM_STREAM_CAPTURE].substreams,
2086                           &pcm);
2087         if (err < 0)
2088                 return err;
2089         strlcpy(pcm->name, cpcm->name, sizeof(pcm->name));
2090         apcm = kzalloc(sizeof(*apcm), GFP_KERNEL);
2091         if (apcm == NULL)
2092                 return -ENOMEM;
2093         apcm->chip = chip;
2094         apcm->codec = codec;
2095         pcm->private_data = apcm;
2096         pcm->private_free = azx_pcm_free;
2097         if (cpcm->pcm_type == HDA_PCM_TYPE_MODEM)
2098                 pcm->dev_class = SNDRV_PCM_CLASS_MODEM;
2099         chip->pcm[pcm_dev] = pcm;
2100         cpcm->pcm = pcm;
2101         for (s = 0; s < 2; s++) {
2102                 apcm->hinfo[s] = &cpcm->stream[s];
2103                 if (cpcm->stream[s].substreams)
2104                         snd_pcm_set_ops(pcm, s, &azx_pcm_ops);
2105         }
2106         /* buffer pre-allocation */
2107         snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
2108                                               snd_dma_pci_data(chip->pci),
2109                                               1024 * 64, 32 * 1024 * 1024);
2110         return 0;
2111 }
2112
2113 /*
2114  * mixer creation - all stuff is implemented in hda module
2115  */
2116 static int __devinit azx_mixer_create(struct azx *chip)
2117 {
2118         return snd_hda_build_controls(chip->bus);
2119 }
2120
2121
2122 /*
2123  * initialize SD streams
2124  */
2125 static int __devinit azx_init_stream(struct azx *chip)
2126 {
2127         int i;
2128
2129         /* initialize each stream (aka device)
2130          * assign the starting bdl address to each stream (device)
2131          * and initialize
2132          */
2133         for (i = 0; i < chip->num_streams; i++) {
2134                 struct azx_dev *azx_dev = &chip->azx_dev[i];
2135                 azx_dev->posbuf = (u32 __iomem *)(chip->posbuf.area + i * 8);
2136                 /* offset: SDI0=0x80, SDI1=0xa0, ... SDO3=0x160 */
2137                 azx_dev->sd_addr = chip->remap_addr + (0x20 * i + 0x80);
2138                 /* int mask: SDI0=0x01, SDI1=0x02, ... SDO3=0x80 */
2139                 azx_dev->sd_int_sta_mask = 1 << i;
2140                 /* stream tag: must be non-zero and unique */
2141                 azx_dev->index = i;
2142                 azx_dev->stream_tag = i + 1;
2143         }
2144
2145         return 0;
2146 }
2147
2148 static int azx_acquire_irq(struct azx *chip, int do_disconnect)
2149 {
2150         if (request_irq(chip->pci->irq, azx_interrupt,
2151                         chip->msi ? 0 : IRQF_SHARED,
2152                         KBUILD_MODNAME, chip)) {
2153                 printk(KERN_ERR "hda-intel: unable to grab IRQ %d, "
2154                        "disabling device\n", chip->pci->irq);
2155                 if (do_disconnect)
2156                         snd_card_disconnect(chip->card);
2157                 return -1;
2158         }
2159         chip->irq = chip->pci->irq;
2160         pci_intx(chip->pci, !chip->msi);
2161         return 0;
2162 }
2163
2164
2165 static void azx_stop_chip(struct azx *chip)
2166 {
2167         if (!chip->initialized)
2168                 return;
2169
2170         /* disable interrupts */
2171         azx_int_disable(chip);
2172         azx_int_clear(chip);
2173
2174         /* disable CORB/RIRB */
2175         azx_free_cmd_io(chip);
2176
2177         /* disable position buffer */
2178         azx_writel(chip, DPLBASE, 0);
2179         azx_writel(chip, DPUBASE, 0);
2180
2181         chip->initialized = 0;
2182 }
2183
2184 #ifdef CONFIG_SND_HDA_POWER_SAVE
2185 /* power-up/down the controller */
2186 static void azx_power_notify(struct hda_bus *bus)
2187 {
2188         struct azx *chip = bus->private_data;
2189         struct hda_codec *c;
2190         int power_on = 0;
2191
2192         list_for_each_entry(c, &bus->codec_list, list) {
2193                 if (c->power_on) {
2194                         power_on = 1;
2195                         break;
2196                 }
2197         }
2198         if (power_on)
2199                 azx_init_chip(chip, 1);
2200         else if (chip->running && power_save_controller &&
2201                  !bus->power_keep_link_on)
2202                 azx_stop_chip(chip);
2203 }
2204 #endif /* CONFIG_SND_HDA_POWER_SAVE */
2205
2206 #ifdef CONFIG_PM
2207 /*
2208  * power management
2209  */
2210
2211 static int snd_hda_codecs_inuse(struct hda_bus *bus)
2212 {
2213         struct hda_codec *codec;
2214
2215         list_for_each_entry(codec, &bus->codec_list, list) {
2216                 if (snd_hda_codec_needs_resume(codec))
2217                         return 1;
2218         }
2219         return 0;
2220 }
2221
2222 static int azx_suspend(struct pci_dev *pci, pm_message_t state)
2223 {
2224         struct snd_card *card = pci_get_drvdata(pci);
2225         struct azx *chip = card->private_data;
2226         int i;
2227
2228         snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
2229         azx_clear_irq_pending(chip);
2230         for (i = 0; i < HDA_MAX_PCMS; i++)
2231                 snd_pcm_suspend_all(chip->pcm[i]);
2232         if (chip->initialized)
2233                 snd_hda_suspend(chip->bus);
2234         azx_stop_chip(chip);
2235         if (chip->irq >= 0) {
2236                 free_irq(chip->irq, chip);
2237                 chip->irq = -1;
2238         }
2239         if (chip->msi)
2240                 pci_disable_msi(chip->pci);
2241         pci_disable_device(pci);
2242         pci_save_state(pci);
2243         pci_set_power_state(pci, pci_choose_state(pci, state));
2244         return 0;
2245 }
2246
2247 static int azx_resume(struct pci_dev *pci)
2248 {
2249         struct snd_card *card = pci_get_drvdata(pci);
2250         struct azx *chip = card->private_data;
2251
2252         pci_set_power_state(pci, PCI_D0);
2253         pci_restore_state(pci);
2254         if (pci_enable_device(pci) < 0) {
2255                 printk(KERN_ERR "hda-intel: pci_enable_device failed, "
2256                        "disabling device\n");
2257                 snd_card_disconnect(card);
2258                 return -EIO;
2259         }
2260         pci_set_master(pci);
2261         if (chip->msi)
2262                 if (pci_enable_msi(pci) < 0)
2263                         chip->msi = 0;
2264         if (azx_acquire_irq(chip, 1) < 0)
2265                 return -EIO;
2266         azx_init_pci(chip);
2267
2268         if (snd_hda_codecs_inuse(chip->bus))
2269                 azx_init_chip(chip, 1);
2270
2271         snd_hda_resume(chip->bus);
2272         snd_power_change_state(card, SNDRV_CTL_POWER_D0);
2273         return 0;
2274 }
2275 #endif /* CONFIG_PM */
2276
2277
2278 /*
2279  * reboot notifier for hang-up problem at power-down
2280  */
2281 static int azx_halt(struct notifier_block *nb, unsigned long event, void *buf)
2282 {
2283         struct azx *chip = container_of(nb, struct azx, reboot_notifier);
2284         snd_hda_bus_reboot_notify(chip->bus);
2285         azx_stop_chip(chip);
2286         return NOTIFY_OK;
2287 }
2288
2289 static void azx_notifier_register(struct azx *chip)
2290 {
2291         chip->reboot_notifier.notifier_call = azx_halt;
2292         register_reboot_notifier(&chip->reboot_notifier);
2293 }
2294
2295 static void azx_notifier_unregister(struct azx *chip)
2296 {
2297         if (chip->reboot_notifier.notifier_call)
2298                 unregister_reboot_notifier(&chip->reboot_notifier);
2299 }
2300
2301 /*
2302  * destructor
2303  */
2304 static int azx_free(struct azx *chip)
2305 {
2306         int i;
2307
2308         azx_notifier_unregister(chip);
2309
2310         if (chip->initialized) {
2311                 azx_clear_irq_pending(chip);
2312                 for (i = 0; i < chip->num_streams; i++)
2313                         azx_stream_stop(chip, &chip->azx_dev[i]);
2314                 azx_stop_chip(chip);
2315         }
2316
2317         if (chip->irq >= 0)
2318                 free_irq(chip->irq, (void*)chip);
2319         if (chip->msi)
2320                 pci_disable_msi(chip->pci);
2321         if (chip->remap_addr)
2322                 iounmap(chip->remap_addr);
2323
2324         if (chip->azx_dev) {
2325                 for (i = 0; i < chip->num_streams; i++)
2326                         if (chip->azx_dev[i].bdl.area)
2327                                 snd_dma_free_pages(&chip->azx_dev[i].bdl);
2328         }
2329         if (chip->rb.area)
2330                 snd_dma_free_pages(&chip->rb);
2331         if (chip->posbuf.area)
2332                 snd_dma_free_pages(&chip->posbuf);
2333         pci_release_regions(chip->pci);
2334         pci_disable_device(chip->pci);
2335         kfree(chip->azx_dev);
2336         kfree(chip);
2337
2338         return 0;
2339 }
2340
2341 static int azx_dev_free(struct snd_device *device)
2342 {
2343         return azx_free(device->device_data);
2344 }
2345
2346 /*
2347  * white/black-listing for position_fix
2348  */
2349 static struct snd_pci_quirk position_fix_list[] __devinitdata = {
2350         SND_PCI_QUIRK(0x1025, 0x009f, "Acer Aspire 5110", POS_FIX_LPIB),
2351         SND_PCI_QUIRK(0x1025, 0x026f, "Acer Aspire 5538", POS_FIX_LPIB),
2352         SND_PCI_QUIRK(0x1028, 0x01cc, "Dell D820", POS_FIX_LPIB),
2353         SND_PCI_QUIRK(0x1028, 0x01de, "Dell Precision 390", POS_FIX_LPIB),
2354         SND_PCI_QUIRK(0x1028, 0x01f6, "Dell Latitude 131L", POS_FIX_LPIB),
2355         SND_PCI_QUIRK(0x1028, 0x0470, "Dell Inspiron 1120", POS_FIX_LPIB),
2356         SND_PCI_QUIRK(0x103c, 0x306d, "HP dv3", POS_FIX_LPIB),
2357         SND_PCI_QUIRK(0x1043, 0x813d, "ASUS P5AD2", POS_FIX_LPIB),
2358         SND_PCI_QUIRK(0x1043, 0x81b3, "ASUS", POS_FIX_LPIB),
2359         SND_PCI_QUIRK(0x1043, 0x81e7, "ASUS M2V", POS_FIX_LPIB),
2360         SND_PCI_QUIRK(0x1043, 0x8410, "ASUS", POS_FIX_LPIB),
2361         SND_PCI_QUIRK(0x104d, 0x9069, "Sony VPCS11V9E", POS_FIX_LPIB),
2362         SND_PCI_QUIRK(0x1106, 0x3288, "ASUS M2V-MX SE", POS_FIX_LPIB),
2363         SND_PCI_QUIRK(0x1179, 0xff10, "Toshiba A100-259", POS_FIX_LPIB),
2364         SND_PCI_QUIRK(0x1297, 0x3166, "Shuttle", POS_FIX_LPIB),
2365         SND_PCI_QUIRK(0x1458, 0xa022, "ga-ma770-ud3", POS_FIX_LPIB),
2366         SND_PCI_QUIRK(0x1462, 0x1002, "MSI Wind U115", POS_FIX_LPIB),
2367         SND_PCI_QUIRK(0x1565, 0x820f, "Biostar Microtech", POS_FIX_LPIB),
2368         SND_PCI_QUIRK(0x1565, 0x8218, "Biostar Microtech", POS_FIX_LPIB),
2369         SND_PCI_QUIRK(0x1849, 0x0888, "775Dual-VSTA", POS_FIX_LPIB),
2370         SND_PCI_QUIRK(0x8086, 0x2503, "DG965OT AAD63733-203", POS_FIX_LPIB),
2371         SND_PCI_QUIRK(0x8086, 0xd601, "eMachines T5212", POS_FIX_LPIB),
2372         {}
2373 };
2374
2375 static int __devinit check_position_fix(struct azx *chip, int fix)
2376 {
2377         const struct snd_pci_quirk *q;
2378
2379         switch (fix) {
2380         case POS_FIX_LPIB:
2381         case POS_FIX_POSBUF:
2382         case POS_FIX_VIACOMBO:
2383                 return fix;
2384         }
2385
2386         q = snd_pci_quirk_lookup(chip->pci, position_fix_list);
2387         if (q) {
2388                 printk(KERN_INFO
2389                        "hda_intel: position_fix set to %d "
2390                        "for device %04x:%04x\n",
2391                        q->value, q->subvendor, q->subdevice);
2392                 return q->value;
2393         }
2394
2395         /* Check VIA/ATI HD Audio Controller exist */
2396         if (chip->driver_caps & AZX_DCAPS_POSFIX_VIA) {
2397                 snd_printd(SFX "Using VIACOMBO position fix\n");
2398                 return POS_FIX_VIACOMBO;
2399         }
2400         if (chip->driver_caps & AZX_DCAPS_POSFIX_LPIB) {
2401                 snd_printd(SFX "Using LPIB position fix\n");
2402                 return POS_FIX_LPIB;
2403         }
2404         return POS_FIX_AUTO;
2405 }
2406
2407 /*
2408  * black-lists for probe_mask
2409  */
2410 static struct snd_pci_quirk probe_mask_list[] __devinitdata = {
2411         /* Thinkpad often breaks the controller communication when accessing
2412          * to the non-working (or non-existing) modem codec slot.
2413          */
2414         SND_PCI_QUIRK(0x1014, 0x05b7, "Thinkpad Z60", 0x01),
2415         SND_PCI_QUIRK(0x17aa, 0x2010, "Thinkpad X/T/R60", 0x01),
2416         SND_PCI_QUIRK(0x17aa, 0x20ac, "Thinkpad X/T/R61", 0x01),
2417         /* broken BIOS */
2418         SND_PCI_QUIRK(0x1028, 0x20ac, "Dell Studio Desktop", 0x01),
2419         /* including bogus ALC268 in slot#2 that conflicts with ALC888 */
2420         SND_PCI_QUIRK(0x17c0, 0x4085, "Medion MD96630", 0x01),
2421         /* forced codec slots */
2422         SND_PCI_QUIRK(0x1043, 0x1262, "ASUS W5Fm", 0x103),
2423         SND_PCI_QUIRK(0x1046, 0x1262, "ASUS W5F", 0x103),
2424         {}
2425 };
2426
2427 #define AZX_FORCE_CODEC_MASK    0x100
2428
2429 static void __devinit check_probe_mask(struct azx *chip, int dev)
2430 {
2431         const struct snd_pci_quirk *q;
2432
2433         chip->codec_probe_mask = probe_mask[dev];
2434         if (chip->codec_probe_mask == -1) {
2435                 q = snd_pci_quirk_lookup(chip->pci, probe_mask_list);
2436                 if (q) {
2437                         printk(KERN_INFO
2438                                "hda_intel: probe_mask set to 0x%x "
2439                                "for device %04x:%04x\n",
2440                                q->value, q->subvendor, q->subdevice);
2441                         chip->codec_probe_mask = q->value;
2442                 }
2443         }
2444
2445         /* check forced option */
2446         if (chip->codec_probe_mask != -1 &&
2447             (chip->codec_probe_mask & AZX_FORCE_CODEC_MASK)) {
2448                 chip->codec_mask = chip->codec_probe_mask & 0xff;
2449                 printk(KERN_INFO "hda_intel: codec_mask forced to 0x%x\n",
2450                        chip->codec_mask);
2451         }
2452 }
2453
2454 /*
2455  * white/black-list for enable_msi
2456  */
2457 static struct snd_pci_quirk msi_black_list[] __devinitdata = {
2458         SND_PCI_QUIRK(0x1043, 0x81f2, "ASUS", 0), /* Athlon64 X2 + nvidia */
2459         SND_PCI_QUIRK(0x1043, 0x81f6, "ASUS", 0), /* nvidia */
2460         SND_PCI_QUIRK(0x1043, 0x822d, "ASUS", 0), /* Athlon64 X2 + nvidia MCP55 */
2461         SND_PCI_QUIRK(0x1849, 0x0888, "ASRock", 0), /* Athlon64 X2 + nvidia */
2462         SND_PCI_QUIRK(0xa0a0, 0x0575, "Aopen MZ915-M", 0), /* ICH6 */
2463         {}
2464 };
2465
2466 static void __devinit check_msi(struct azx *chip)
2467 {
2468         const struct snd_pci_quirk *q;
2469
2470         if (enable_msi >= 0) {
2471                 chip->msi = !!enable_msi;
2472                 return;
2473         }
2474         chip->msi = 1;  /* enable MSI as default */
2475         q = snd_pci_quirk_lookup(chip->pci, msi_black_list);
2476         if (q) {
2477                 printk(KERN_INFO
2478                        "hda_intel: msi for device %04x:%04x set to %d\n",
2479                        q->subvendor, q->subdevice, q->value);
2480                 chip->msi = q->value;
2481                 return;
2482         }
2483
2484         /* NVidia chipsets seem to cause troubles with MSI */
2485         if (chip->driver_caps & AZX_DCAPS_NO_MSI) {
2486                 printk(KERN_INFO "hda_intel: Disabling MSI\n");
2487                 chip->msi = 0;
2488         }
2489 }
2490
2491
2492 /*
2493  * constructor
2494  */
2495 static int __devinit azx_create(struct snd_card *card, struct pci_dev *pci,
2496                                 int dev, unsigned int driver_caps,
2497                                 struct azx **rchip)
2498 {
2499         struct azx *chip;
2500         int i, err;
2501         unsigned short gcap;
2502         static struct snd_device_ops ops = {
2503                 .dev_free = azx_dev_free,
2504         };
2505
2506         *rchip = NULL;
2507
2508         err = pci_enable_device(pci);
2509         if (err < 0)
2510                 return err;
2511
2512         chip = kzalloc(sizeof(*chip), GFP_KERNEL);
2513         if (!chip) {
2514                 snd_printk(KERN_ERR SFX "cannot allocate chip\n");
2515                 pci_disable_device(pci);
2516                 return -ENOMEM;
2517         }
2518
2519         spin_lock_init(&chip->reg_lock);
2520         mutex_init(&chip->open_mutex);
2521         chip->card = card;
2522         chip->pci = pci;
2523         chip->irq = -1;
2524         chip->driver_caps = driver_caps;
2525         chip->driver_type = driver_caps & 0xff;
2526         check_msi(chip);
2527         chip->dev_index = dev;
2528         INIT_WORK(&chip->irq_pending_work, azx_irq_pending_work);
2529
2530         chip->position_fix[0] = chip->position_fix[1] =
2531                 check_position_fix(chip, position_fix[dev]);
2532         check_probe_mask(chip, dev);
2533
2534         chip->single_cmd = single_cmd;
2535
2536         if (bdl_pos_adj[dev] < 0) {
2537                 switch (chip->driver_type) {
2538                 case AZX_DRIVER_ICH:
2539                 case AZX_DRIVER_PCH:
2540                         bdl_pos_adj[dev] = 1;
2541                         break;
2542                 default:
2543                         bdl_pos_adj[dev] = 32;
2544                         break;
2545                 }
2546         }
2547
2548 #if BITS_PER_LONG != 64
2549         /* Fix up base address on ULI M5461 */
2550         if (chip->driver_type == AZX_DRIVER_ULI) {
2551                 u16 tmp3;
2552                 pci_read_config_word(pci, 0x40, &tmp3);
2553                 pci_write_config_word(pci, 0x40, tmp3 | 0x10);
2554                 pci_write_config_dword(pci, PCI_BASE_ADDRESS_1, 0);
2555         }
2556 #endif
2557
2558         err = pci_request_regions(pci, "ICH HD audio");
2559         if (err < 0) {
2560                 kfree(chip);
2561                 pci_disable_device(pci);
2562                 return err;
2563         }
2564
2565         chip->addr = pci_resource_start(pci, 0);
2566         chip->remap_addr = pci_ioremap_bar(pci, 0);
2567         if (chip->remap_addr == NULL) {
2568                 snd_printk(KERN_ERR SFX "ioremap error\n");
2569                 err = -ENXIO;
2570                 goto errout;
2571         }
2572
2573         if (chip->msi)
2574                 if (pci_enable_msi(pci) < 0)
2575                         chip->msi = 0;
2576
2577         if (azx_acquire_irq(chip, 0) < 0) {
2578                 err = -EBUSY;
2579                 goto errout;
2580         }
2581
2582         pci_set_master(pci);
2583         synchronize_irq(chip->irq);
2584
2585         gcap = azx_readw(chip, GCAP);
2586         snd_printdd(SFX "chipset global capabilities = 0x%x\n", gcap);
2587
2588         /* disable SB600 64bit support for safety */
2589         if (chip->pci->vendor == PCI_VENDOR_ID_ATI) {
2590                 struct pci_dev *p_smbus;
2591                 p_smbus = pci_get_device(PCI_VENDOR_ID_ATI,
2592                                          PCI_DEVICE_ID_ATI_SBX00_SMBUS,
2593                                          NULL);
2594                 if (p_smbus) {
2595                         if (p_smbus->revision < 0x30)
2596                                 gcap &= ~ICH6_GCAP_64OK;
2597                         pci_dev_put(p_smbus);
2598                 }
2599         }
2600
2601         /* disable 64bit DMA address on some devices */
2602         if (chip->driver_caps & AZX_DCAPS_NO_64BIT) {
2603                 snd_printd(SFX "Disabling 64bit DMA\n");
2604                 gcap &= ~ICH6_GCAP_64OK;
2605         }
2606
2607         /* allow 64bit DMA address if supported by H/W */
2608         if ((gcap & ICH6_GCAP_64OK) && !pci_set_dma_mask(pci, DMA_BIT_MASK(64)))
2609                 pci_set_consistent_dma_mask(pci, DMA_BIT_MASK(64));
2610         else {
2611                 pci_set_dma_mask(pci, DMA_BIT_MASK(32));
2612                 pci_set_consistent_dma_mask(pci, DMA_BIT_MASK(32));
2613         }
2614
2615         /* read number of streams from GCAP register instead of using
2616          * hardcoded value
2617          */
2618         chip->capture_streams = (gcap >> 8) & 0x0f;
2619         chip->playback_streams = (gcap >> 12) & 0x0f;
2620         if (!chip->playback_streams && !chip->capture_streams) {
2621                 /* gcap didn't give any info, switching to old method */
2622
2623                 switch (chip->driver_type) {
2624                 case AZX_DRIVER_ULI:
2625                         chip->playback_streams = ULI_NUM_PLAYBACK;
2626                         chip->capture_streams = ULI_NUM_CAPTURE;
2627                         break;
2628                 case AZX_DRIVER_ATIHDMI:
2629                         chip->playback_streams = ATIHDMI_NUM_PLAYBACK;
2630                         chip->capture_streams = ATIHDMI_NUM_CAPTURE;
2631                         break;
2632                 case AZX_DRIVER_GENERIC:
2633                 default:
2634                         chip->playback_streams = ICH6_NUM_PLAYBACK;
2635                         chip->capture_streams = ICH6_NUM_CAPTURE;
2636                         break;
2637                 }
2638         }
2639         chip->capture_index_offset = 0;
2640         chip->playback_index_offset = chip->capture_streams;
2641         chip->num_streams = chip->playback_streams + chip->capture_streams;
2642         chip->azx_dev = kcalloc(chip->num_streams, sizeof(*chip->azx_dev),
2643                                 GFP_KERNEL);
2644         if (!chip->azx_dev) {
2645                 snd_printk(KERN_ERR SFX "cannot malloc azx_dev\n");
2646                 goto errout;
2647         }
2648
2649         for (i = 0; i < chip->num_streams; i++) {
2650                 /* allocate memory for the BDL for each stream */
2651                 err = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV,
2652                                           snd_dma_pci_data(chip->pci),
2653                                           BDL_SIZE, &chip->azx_dev[i].bdl);
2654                 if (err < 0) {
2655                         snd_printk(KERN_ERR SFX "cannot allocate BDL\n");
2656                         goto errout;
2657                 }
2658         }
2659         /* allocate memory for the position buffer */
2660         err = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV,
2661                                   snd_dma_pci_data(chip->pci),
2662                                   chip->num_streams * 8, &chip->posbuf);
2663         if (err < 0) {
2664                 snd_printk(KERN_ERR SFX "cannot allocate posbuf\n");
2665                 goto errout;
2666         }
2667         /* allocate CORB/RIRB */
2668         err = azx_alloc_cmd_io(chip);
2669         if (err < 0)
2670                 goto errout;
2671
2672         /* initialize streams */
2673         azx_init_stream(chip);
2674
2675         /* initialize chip */
2676         azx_init_pci(chip);
2677         azx_init_chip(chip, (probe_only[dev] & 2) == 0);
2678
2679         /* codec detection */
2680         if (!chip->codec_mask) {
2681                 snd_printk(KERN_ERR SFX "no codecs found!\n");
2682                 err = -ENODEV;
2683                 goto errout;
2684         }
2685
2686         err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
2687         if (err <0) {
2688                 snd_printk(KERN_ERR SFX "Error creating device [card]!\n");
2689                 goto errout;
2690         }
2691
2692         strcpy(card->driver, "HDA-Intel");
2693         strlcpy(card->shortname, driver_short_names[chip->driver_type],
2694                 sizeof(card->shortname));
2695         snprintf(card->longname, sizeof(card->longname),
2696                  "%s at 0x%lx irq %i",
2697                  card->shortname, chip->addr, chip->irq);
2698
2699         *rchip = chip;
2700         return 0;
2701
2702  errout:
2703         azx_free(chip);
2704         return err;
2705 }
2706
2707 static void power_down_all_codecs(struct azx *chip)
2708 {
2709 #ifdef CONFIG_SND_HDA_POWER_SAVE
2710         /* The codecs were powered up in snd_hda_codec_new().
2711          * Now all initialization done, so turn them down if possible
2712          */
2713         struct hda_codec *codec;
2714         list_for_each_entry(codec, &chip->bus->codec_list, list) {
2715                 snd_hda_power_down(codec);
2716         }
2717 #endif
2718 }
2719
2720 static int __devinit azx_probe(struct pci_dev *pci,
2721                                const struct pci_device_id *pci_id)
2722 {
2723         static int dev;
2724         struct snd_card *card;
2725         struct azx *chip;
2726         int err;
2727
2728         if (dev >= SNDRV_CARDS)
2729                 return -ENODEV;
2730         if (!enable[dev]) {
2731                 dev++;
2732                 return -ENOENT;
2733         }
2734
2735         err = snd_card_create(index[dev], id[dev], THIS_MODULE, 0, &card);
2736         if (err < 0) {
2737                 snd_printk(KERN_ERR SFX "Error creating card!\n");
2738                 return err;
2739         }
2740
2741         /* set this here since it's referred in snd_hda_load_patch() */
2742         snd_card_set_dev(card, &pci->dev);
2743
2744         err = azx_create(card, pci, dev, pci_id->driver_data, &chip);
2745         if (err < 0)
2746                 goto out_free;
2747         card->private_data = chip;
2748
2749 #ifdef CONFIG_SND_HDA_INPUT_BEEP
2750         chip->beep_mode = beep_mode[dev];
2751 #endif
2752
2753         /* create codec instances */
2754         err = azx_codec_create(chip, model[dev]);
2755         if (err < 0)
2756                 goto out_free;
2757 #ifdef CONFIG_SND_HDA_PATCH_LOADER
2758         if (patch[dev] && *patch[dev]) {
2759                 snd_printk(KERN_ERR SFX "Applying patch firmware '%s'\n",
2760                            patch[dev]);
2761                 err = snd_hda_load_patch(chip->bus, patch[dev]);
2762                 if (err < 0)
2763                         goto out_free;
2764         }
2765 #endif
2766         if ((probe_only[dev] & 1) == 0) {
2767                 err = azx_codec_configure(chip);
2768                 if (err < 0)
2769                         goto out_free;
2770         }
2771
2772         /* create PCM streams */
2773         err = snd_hda_build_pcms(chip->bus);
2774         if (err < 0)
2775                 goto out_free;
2776
2777         /* create mixer controls */
2778         err = azx_mixer_create(chip);
2779         if (err < 0)
2780                 goto out_free;
2781
2782         err = snd_card_register(card);
2783         if (err < 0)
2784                 goto out_free;
2785
2786         pci_set_drvdata(pci, card);
2787         chip->running = 1;
2788         power_down_all_codecs(chip);
2789         azx_notifier_register(chip);
2790
2791         dev++;
2792         return err;
2793 out_free:
2794         snd_card_free(card);
2795         return err;
2796 }
2797
2798 static void __devexit azx_remove(struct pci_dev *pci)
2799 {
2800         snd_card_free(pci_get_drvdata(pci));
2801         pci_set_drvdata(pci, NULL);
2802 }
2803
2804 /* PCI IDs */
2805 static DEFINE_PCI_DEVICE_TABLE(azx_ids) = {
2806         /* CPT */
2807         { PCI_DEVICE(0x8086, 0x1c20),
2808           .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_SCH_SNOOP },
2809         /* PBG */
2810         { PCI_DEVICE(0x8086, 0x1d20),
2811           .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_SCH_SNOOP },
2812         /* Panther Point */
2813         { PCI_DEVICE(0x8086, 0x1e20),
2814           .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_SCH_SNOOP },
2815         /* SCH */
2816         { PCI_DEVICE(0x8086, 0x811b),
2817           .driver_data = AZX_DRIVER_SCH | AZX_DCAPS_SCH_SNOOP },
2818         /* Generic Intel */
2819         { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_ANY_ID),
2820           .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2821           .class_mask = 0xffffff,
2822           .driver_data = AZX_DRIVER_ICH },
2823         /* ATI SB 450/600/700/800/900 */
2824         { PCI_DEVICE(0x1002, 0x437b),
2825           .driver_data = AZX_DRIVER_ATI | AZX_DCAPS_PRESET_ATI_SB },
2826         { PCI_DEVICE(0x1002, 0x4383),
2827           .driver_data = AZX_DRIVER_ATI | AZX_DCAPS_PRESET_ATI_SB },
2828         /* AMD Hudson */
2829         { PCI_DEVICE(0x1022, 0x780d),
2830           .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_ATI_SB },
2831         /* ATI HDMI */
2832         { PCI_DEVICE(0x1002, 0x793b),
2833           .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2834         { PCI_DEVICE(0x1002, 0x7919),
2835           .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2836         { PCI_DEVICE(0x1002, 0x960f),
2837           .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2838         { PCI_DEVICE(0x1002, 0x970f),
2839           .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2840         { PCI_DEVICE(0x1002, 0xaa00),
2841           .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2842         { PCI_DEVICE(0x1002, 0xaa08),
2843           .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2844         { PCI_DEVICE(0x1002, 0xaa10),
2845           .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2846         { PCI_DEVICE(0x1002, 0xaa18),
2847           .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2848         { PCI_DEVICE(0x1002, 0xaa20),
2849           .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2850         { PCI_DEVICE(0x1002, 0xaa28),
2851           .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2852         { PCI_DEVICE(0x1002, 0xaa30),
2853           .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2854         { PCI_DEVICE(0x1002, 0xaa38),
2855           .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2856         { PCI_DEVICE(0x1002, 0xaa40),
2857           .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2858         { PCI_DEVICE(0x1002, 0xaa48),
2859           .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2860         /* VIA VT8251/VT8237A */
2861         { PCI_DEVICE(0x1106, 0x3288),
2862           .driver_data = AZX_DRIVER_VIA | AZX_DCAPS_POSFIX_VIA },
2863         /* SIS966 */
2864         { PCI_DEVICE(0x1039, 0x7502), .driver_data = AZX_DRIVER_SIS },
2865         /* ULI M5461 */
2866         { PCI_DEVICE(0x10b9, 0x5461), .driver_data = AZX_DRIVER_ULI },
2867         /* NVIDIA MCP */
2868         { PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID),
2869           .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2870           .class_mask = 0xffffff,
2871           .driver_data = AZX_DRIVER_NVIDIA | AZX_DCAPS_PRESET_NVIDIA },
2872         /* Teradici */
2873         { PCI_DEVICE(0x6549, 0x1200),
2874           .driver_data = AZX_DRIVER_TERA | AZX_DCAPS_NO_64BIT },
2875         /* Creative X-Fi (CA0110-IBG) */
2876 #if !defined(CONFIG_SND_CTXFI) && !defined(CONFIG_SND_CTXFI_MODULE)
2877         /* the following entry conflicts with snd-ctxfi driver,
2878          * as ctxfi driver mutates from HD-audio to native mode with
2879          * a special command sequence.
2880          */
2881         { PCI_DEVICE(PCI_VENDOR_ID_CREATIVE, PCI_ANY_ID),
2882           .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2883           .class_mask = 0xffffff,
2884           .driver_data = AZX_DRIVER_CTX | AZX_DCAPS_CTX_WORKAROUND |
2885           AZX_DCAPS_RIRB_PRE_DELAY },
2886 #else
2887         /* this entry seems still valid -- i.e. without emu20kx chip */
2888         { PCI_DEVICE(0x1102, 0x0009),
2889           .driver_data = AZX_DRIVER_CTX | AZX_DCAPS_CTX_WORKAROUND |
2890           AZX_DCAPS_RIRB_PRE_DELAY },
2891 #endif
2892         /* Vortex86MX */
2893         { PCI_DEVICE(0x17f3, 0x3010), .driver_data = AZX_DRIVER_GENERIC },
2894         /* VMware HDAudio */
2895         { PCI_DEVICE(0x15ad, 0x1977), .driver_data = AZX_DRIVER_GENERIC },
2896         /* AMD/ATI Generic, PCI class code and Vendor ID for HD Audio */
2897         { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_ANY_ID),
2898           .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2899           .class_mask = 0xffffff,
2900           .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_ATI_HDMI },
2901         { PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_ANY_ID),
2902           .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2903           .class_mask = 0xffffff,
2904           .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_ATI_HDMI },
2905         { 0, }
2906 };
2907 MODULE_DEVICE_TABLE(pci, azx_ids);
2908
2909 /* pci_driver definition */
2910 static struct pci_driver driver = {
2911         .name = KBUILD_MODNAME,
2912         .id_table = azx_ids,
2913         .probe = azx_probe,
2914         .remove = __devexit_p(azx_remove),
2915 #ifdef CONFIG_PM
2916         .suspend = azx_suspend,
2917         .resume = azx_resume,
2918 #endif
2919 };
2920
2921 static int __init alsa_card_azx_init(void)
2922 {
2923         return pci_register_driver(&driver);
2924 }
2925
2926 static void __exit alsa_card_azx_exit(void)
2927 {
2928         pci_unregister_driver(&driver);
2929 }
2930
2931 module_init(alsa_card_azx_init)
2932 module_exit(alsa_card_azx_exit)