[ALSA] hda-intel - Fix resume logic, when dynamic power managment is on
[pandora-kernel.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 <sound/driver.h>
38 #include <asm/io.h>
39 #include <linux/delay.h>
40 #include <linux/interrupt.h>
41 #include <linux/kernel.h>
42 #include <linux/module.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 <sound/core.h>
49 #include <sound/initval.h>
50 #include "hda_codec.h"
51
52
53 static int index = SNDRV_DEFAULT_IDX1;
54 static char *id = SNDRV_DEFAULT_STR1;
55 static char *model;
56 static int position_fix;
57 static int probe_mask = -1;
58 static int single_cmd;
59 static int enable_msi;
60
61 module_param(index, int, 0444);
62 MODULE_PARM_DESC(index, "Index value for Intel HD audio interface.");
63 module_param(id, charp, 0444);
64 MODULE_PARM_DESC(id, "ID string for Intel HD audio interface.");
65 module_param(model, charp, 0444);
66 MODULE_PARM_DESC(model, "Use the given board model.");
67 module_param(position_fix, int, 0444);
68 MODULE_PARM_DESC(position_fix, "Fix DMA pointer "
69                  "(0 = auto, 1 = none, 2 = POSBUF, 3 = FIFO size).");
70 module_param(probe_mask, int, 0444);
71 MODULE_PARM_DESC(probe_mask, "Bitmask to probe codecs (default = -1).");
72 module_param(single_cmd, bool, 0444);
73 MODULE_PARM_DESC(single_cmd, "Use single command to communicate with codecs "
74                  "(for debugging only).");
75 module_param(enable_msi, int, 0);
76 MODULE_PARM_DESC(enable_msi, "Enable Message Signaled Interrupt (MSI)");
77
78 #ifdef CONFIG_SND_HDA_POWER_SAVE
79 /* power_save option is defined in hda_codec.c */
80
81 /* reset the HD-audio controller in power save mode.
82  * this may give more power-saving, but will take longer time to
83  * wake up.
84  */
85 static int power_save_controller = 1;
86 module_param(power_save_controller, bool, 0644);
87 MODULE_PARM_DESC(power_save_controller, "Reset controller in power save mode.");
88 #endif
89
90 /* just for backward compatibility */
91 static int enable;
92 module_param(enable, bool, 0444);
93
94 MODULE_LICENSE("GPL");
95 MODULE_SUPPORTED_DEVICE("{{Intel, ICH6},"
96                          "{Intel, ICH6M},"
97                          "{Intel, ICH7},"
98                          "{Intel, ESB2},"
99                          "{Intel, ICH8},"
100                          "{Intel, ICH9},"
101                          "{ATI, SB450},"
102                          "{ATI, SB600},"
103                          "{ATI, RS600},"
104                          "{ATI, RS690},"
105                          "{ATI, RS780},"
106                          "{ATI, R600},"
107                          "{VIA, VT8251},"
108                          "{VIA, VT8237A},"
109                          "{SiS, SIS966},"
110                          "{ULI, M5461}}");
111 MODULE_DESCRIPTION("Intel HDA driver");
112
113 #define SFX     "hda-intel: "
114
115
116 /*
117  * registers
118  */
119 #define ICH6_REG_GCAP                   0x00
120 #define ICH6_REG_VMIN                   0x02
121 #define ICH6_REG_VMAJ                   0x03
122 #define ICH6_REG_OUTPAY                 0x04
123 #define ICH6_REG_INPAY                  0x06
124 #define ICH6_REG_GCTL                   0x08
125 #define ICH6_REG_WAKEEN                 0x0c
126 #define ICH6_REG_STATESTS               0x0e
127 #define ICH6_REG_GSTS                   0x10
128 #define ICH6_REG_INTCTL                 0x20
129 #define ICH6_REG_INTSTS                 0x24
130 #define ICH6_REG_WALCLK                 0x30
131 #define ICH6_REG_SYNC                   0x34    
132 #define ICH6_REG_CORBLBASE              0x40
133 #define ICH6_REG_CORBUBASE              0x44
134 #define ICH6_REG_CORBWP                 0x48
135 #define ICH6_REG_CORBRP                 0x4A
136 #define ICH6_REG_CORBCTL                0x4c
137 #define ICH6_REG_CORBSTS                0x4d
138 #define ICH6_REG_CORBSIZE               0x4e
139
140 #define ICH6_REG_RIRBLBASE              0x50
141 #define ICH6_REG_RIRBUBASE              0x54
142 #define ICH6_REG_RIRBWP                 0x58
143 #define ICH6_REG_RINTCNT                0x5a
144 #define ICH6_REG_RIRBCTL                0x5c
145 #define ICH6_REG_RIRBSTS                0x5d
146 #define ICH6_REG_RIRBSIZE               0x5e
147
148 #define ICH6_REG_IC                     0x60
149 #define ICH6_REG_IR                     0x64
150 #define ICH6_REG_IRS                    0x68
151 #define   ICH6_IRS_VALID        (1<<1)
152 #define   ICH6_IRS_BUSY         (1<<0)
153
154 #define ICH6_REG_DPLBASE                0x70
155 #define ICH6_REG_DPUBASE                0x74
156 #define   ICH6_DPLBASE_ENABLE   0x1     /* Enable position buffer */
157
158 /* SD offset: SDI0=0x80, SDI1=0xa0, ... SDO3=0x160 */
159 enum { SDI0, SDI1, SDI2, SDI3, SDO0, SDO1, SDO2, SDO3 };
160
161 /* stream register offsets from stream base */
162 #define ICH6_REG_SD_CTL                 0x00
163 #define ICH6_REG_SD_STS                 0x03
164 #define ICH6_REG_SD_LPIB                0x04
165 #define ICH6_REG_SD_CBL                 0x08
166 #define ICH6_REG_SD_LVI                 0x0c
167 #define ICH6_REG_SD_FIFOW               0x0e
168 #define ICH6_REG_SD_FIFOSIZE            0x10
169 #define ICH6_REG_SD_FORMAT              0x12
170 #define ICH6_REG_SD_BDLPL               0x18
171 #define ICH6_REG_SD_BDLPU               0x1c
172
173 /* PCI space */
174 #define ICH6_PCIREG_TCSEL       0x44
175
176 /*
177  * other constants
178  */
179
180 /* max number of SDs */
181 /* ICH, ATI and VIA have 4 playback and 4 capture */
182 #define ICH6_CAPTURE_INDEX      0
183 #define ICH6_NUM_CAPTURE        4
184 #define ICH6_PLAYBACK_INDEX     4
185 #define ICH6_NUM_PLAYBACK       4
186
187 /* ULI has 6 playback and 5 capture */
188 #define ULI_CAPTURE_INDEX       0
189 #define ULI_NUM_CAPTURE         5
190 #define ULI_PLAYBACK_INDEX      5
191 #define ULI_NUM_PLAYBACK        6
192
193 /* ATI HDMI has 1 playback and 0 capture */
194 #define ATIHDMI_CAPTURE_INDEX   0
195 #define ATIHDMI_NUM_CAPTURE     0
196 #define ATIHDMI_PLAYBACK_INDEX  0
197 #define ATIHDMI_NUM_PLAYBACK    1
198
199 /* this number is statically defined for simplicity */
200 #define MAX_AZX_DEV             16
201
202 /* max number of fragments - we may use more if allocating more pages for BDL */
203 #define BDL_SIZE                PAGE_ALIGN(8192)
204 #define AZX_MAX_FRAG            (BDL_SIZE / (MAX_AZX_DEV * 16))
205 /* max buffer size - no h/w limit, you can increase as you like */
206 #define AZX_MAX_BUF_SIZE        (1024*1024*1024)
207 /* max number of PCM devics per card */
208 #define AZX_MAX_AUDIO_PCMS      6
209 #define AZX_MAX_MODEM_PCMS      2
210 #define AZX_MAX_PCMS            (AZX_MAX_AUDIO_PCMS + AZX_MAX_MODEM_PCMS)
211
212 /* RIRB int mask: overrun[2], response[0] */
213 #define RIRB_INT_RESPONSE       0x01
214 #define RIRB_INT_OVERRUN        0x04
215 #define RIRB_INT_MASK           0x05
216
217 /* STATESTS int mask: SD2,SD1,SD0 */
218 #define AZX_MAX_CODECS          3
219 #define STATESTS_INT_MASK       0x07
220
221 /* SD_CTL bits */
222 #define SD_CTL_STREAM_RESET     0x01    /* stream reset bit */
223 #define SD_CTL_DMA_START        0x02    /* stream DMA start bit */
224 #define SD_CTL_STREAM_TAG_MASK  (0xf << 20)
225 #define SD_CTL_STREAM_TAG_SHIFT 20
226
227 /* SD_CTL and SD_STS */
228 #define SD_INT_DESC_ERR         0x10    /* descriptor error interrupt */
229 #define SD_INT_FIFO_ERR         0x08    /* FIFO error interrupt */
230 #define SD_INT_COMPLETE         0x04    /* completion interrupt */
231 #define SD_INT_MASK             (SD_INT_DESC_ERR|SD_INT_FIFO_ERR|\
232                                  SD_INT_COMPLETE)
233
234 /* SD_STS */
235 #define SD_STS_FIFO_READY       0x20    /* FIFO ready */
236
237 /* INTCTL and INTSTS */
238 #define ICH6_INT_ALL_STREAM     0xff       /* all stream interrupts */
239 #define ICH6_INT_CTRL_EN        0x40000000 /* controller interrupt enable bit */
240 #define ICH6_INT_GLOBAL_EN      0x80000000 /* global interrupt enable bit */
241
242 /* GCTL unsolicited response enable bit */
243 #define ICH6_GCTL_UREN          (1<<8)
244
245 /* GCTL reset bit */
246 #define ICH6_GCTL_RESET         (1<<0)
247
248 /* CORB/RIRB control, read/write pointer */
249 #define ICH6_RBCTL_DMA_EN       0x02    /* enable DMA */
250 #define ICH6_RBCTL_IRQ_EN       0x01    /* enable IRQ */
251 #define ICH6_RBRWP_CLR          0x8000  /* read/write pointer clear */
252 /* below are so far hardcoded - should read registers in future */
253 #define ICH6_MAX_CORB_ENTRIES   256
254 #define ICH6_MAX_RIRB_ENTRIES   256
255
256 /* position fix mode */
257 enum {
258         POS_FIX_AUTO,
259         POS_FIX_NONE,
260         POS_FIX_POSBUF,
261         POS_FIX_FIFO,
262 };
263
264 /* Defines for ATI HD Audio support in SB450 south bridge */
265 #define ATI_SB450_HDAUDIO_MISC_CNTR2_ADDR   0x42
266 #define ATI_SB450_HDAUDIO_ENABLE_SNOOP      0x02
267
268 /* Defines for Nvidia HDA support */
269 #define NVIDIA_HDA_TRANSREG_ADDR      0x4e
270 #define NVIDIA_HDA_ENABLE_COHBITS     0x0f
271
272 /*
273  */
274
275 struct azx_dev {
276         u32 *bdl;               /* virtual address of the BDL */
277         dma_addr_t bdl_addr;    /* physical address of the BDL */
278         u32 *posbuf;            /* position buffer pointer */
279
280         unsigned int bufsize;   /* size of the play buffer in bytes */
281         unsigned int fragsize;  /* size of each period in bytes */
282         unsigned int frags;     /* number for period in the play buffer */
283         unsigned int fifo_size; /* FIFO size */
284
285         void __iomem *sd_addr;  /* stream descriptor pointer */
286
287         u32 sd_int_sta_mask;    /* stream int status mask */
288
289         /* pcm support */
290         struct snd_pcm_substream *substream;    /* assigned substream,
291                                                  * set in PCM open
292                                                  */
293         unsigned int format_val;        /* format value to be set in the
294                                          * controller and the codec
295                                          */
296         unsigned char stream_tag;       /* assigned stream */
297         unsigned char index;            /* stream index */
298         /* for sanity check of position buffer */
299         unsigned int period_intr;
300
301         unsigned int opened :1;
302         unsigned int running :1;
303 };
304
305 /* CORB/RIRB */
306 struct azx_rb {
307         u32 *buf;               /* CORB/RIRB buffer
308                                  * Each CORB entry is 4byte, RIRB is 8byte
309                                  */
310         dma_addr_t addr;        /* physical address of CORB/RIRB buffer */
311         /* for RIRB */
312         unsigned short rp, wp;  /* read/write pointers */
313         int cmds;               /* number of pending requests */
314         u32 res;                /* last read value */
315 };
316
317 struct azx {
318         struct snd_card *card;
319         struct pci_dev *pci;
320
321         /* chip type specific */
322         int driver_type;
323         int playback_streams;
324         int playback_index_offset;
325         int capture_streams;
326         int capture_index_offset;
327         int num_streams;
328
329         /* pci resources */
330         unsigned long addr;
331         void __iomem *remap_addr;
332         int irq;
333
334         /* locks */
335         spinlock_t reg_lock;
336         struct mutex open_mutex;
337
338         /* streams (x num_streams) */
339         struct azx_dev *azx_dev;
340
341         /* PCM */
342         unsigned int pcm_devs;
343         struct snd_pcm *pcm[AZX_MAX_PCMS];
344
345         /* HD codec */
346         unsigned short codec_mask;
347         struct hda_bus *bus;
348
349         /* CORB/RIRB */
350         struct azx_rb corb;
351         struct azx_rb rirb;
352
353         /* BDL, CORB/RIRB and position buffers */
354         struct snd_dma_buffer bdl;
355         struct snd_dma_buffer rb;
356         struct snd_dma_buffer posbuf;
357
358         /* flags */
359         int position_fix;
360         unsigned int running :1;
361         unsigned int initialized :1;
362         unsigned int single_cmd :1;
363         unsigned int polling_mode :1;
364         unsigned int msi :1;
365
366         /* for debugging */
367         unsigned int last_cmd;  /* last issued command (to sync) */
368 };
369
370 /* driver types */
371 enum {
372         AZX_DRIVER_ICH,
373         AZX_DRIVER_ATI,
374         AZX_DRIVER_ATIHDMI,
375         AZX_DRIVER_VIA,
376         AZX_DRIVER_SIS,
377         AZX_DRIVER_ULI,
378         AZX_DRIVER_NVIDIA,
379 };
380
381 static char *driver_short_names[] __devinitdata = {
382         [AZX_DRIVER_ICH] = "HDA Intel",
383         [AZX_DRIVER_ATI] = "HDA ATI SB",
384         [AZX_DRIVER_ATIHDMI] = "HDA ATI HDMI",
385         [AZX_DRIVER_VIA] = "HDA VIA VT82xx",
386         [AZX_DRIVER_SIS] = "HDA SIS966",
387         [AZX_DRIVER_ULI] = "HDA ULI M5461",
388         [AZX_DRIVER_NVIDIA] = "HDA NVidia",
389 };
390
391 /*
392  * macros for easy use
393  */
394 #define azx_writel(chip,reg,value) \
395         writel(value, (chip)->remap_addr + ICH6_REG_##reg)
396 #define azx_readl(chip,reg) \
397         readl((chip)->remap_addr + ICH6_REG_##reg)
398 #define azx_writew(chip,reg,value) \
399         writew(value, (chip)->remap_addr + ICH6_REG_##reg)
400 #define azx_readw(chip,reg) \
401         readw((chip)->remap_addr + ICH6_REG_##reg)
402 #define azx_writeb(chip,reg,value) \
403         writeb(value, (chip)->remap_addr + ICH6_REG_##reg)
404 #define azx_readb(chip,reg) \
405         readb((chip)->remap_addr + ICH6_REG_##reg)
406
407 #define azx_sd_writel(dev,reg,value) \
408         writel(value, (dev)->sd_addr + ICH6_REG_##reg)
409 #define azx_sd_readl(dev,reg) \
410         readl((dev)->sd_addr + ICH6_REG_##reg)
411 #define azx_sd_writew(dev,reg,value) \
412         writew(value, (dev)->sd_addr + ICH6_REG_##reg)
413 #define azx_sd_readw(dev,reg) \
414         readw((dev)->sd_addr + ICH6_REG_##reg)
415 #define azx_sd_writeb(dev,reg,value) \
416         writeb(value, (dev)->sd_addr + ICH6_REG_##reg)
417 #define azx_sd_readb(dev,reg) \
418         readb((dev)->sd_addr + ICH6_REG_##reg)
419
420 /* for pcm support */
421 #define get_azx_dev(substream) (substream->runtime->private_data)
422
423 /* Get the upper 32bit of the given dma_addr_t
424  * Compiler should optimize and eliminate the code if dma_addr_t is 32bit
425  */
426 #define upper_32bit(addr) (sizeof(addr) > 4 ? (u32)((addr) >> 32) : (u32)0)
427
428 static int azx_acquire_irq(struct azx *chip, int do_disconnect);
429
430 /*
431  * Interface for HD codec
432  */
433
434 /*
435  * CORB / RIRB interface
436  */
437 static int azx_alloc_cmd_io(struct azx *chip)
438 {
439         int err;
440
441         /* single page (at least 4096 bytes) must suffice for both ringbuffes */
442         err = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV,
443                                   snd_dma_pci_data(chip->pci),
444                                   PAGE_SIZE, &chip->rb);
445         if (err < 0) {
446                 snd_printk(KERN_ERR SFX "cannot allocate CORB/RIRB\n");
447                 return err;
448         }
449         return 0;
450 }
451
452 static void azx_init_cmd_io(struct azx *chip)
453 {
454         /* CORB set up */
455         chip->corb.addr = chip->rb.addr;
456         chip->corb.buf = (u32 *)chip->rb.area;
457         azx_writel(chip, CORBLBASE, (u32)chip->corb.addr);
458         azx_writel(chip, CORBUBASE, upper_32bit(chip->corb.addr));
459
460         /* set the corb size to 256 entries (ULI requires explicitly) */
461         azx_writeb(chip, CORBSIZE, 0x02);
462         /* set the corb write pointer to 0 */
463         azx_writew(chip, CORBWP, 0);
464         /* reset the corb hw read pointer */
465         azx_writew(chip, CORBRP, ICH6_RBRWP_CLR);
466         /* enable corb dma */
467         azx_writeb(chip, CORBCTL, ICH6_RBCTL_DMA_EN);
468
469         /* RIRB set up */
470         chip->rirb.addr = chip->rb.addr + 2048;
471         chip->rirb.buf = (u32 *)(chip->rb.area + 2048);
472         azx_writel(chip, RIRBLBASE, (u32)chip->rirb.addr);
473         azx_writel(chip, RIRBUBASE, upper_32bit(chip->rirb.addr));
474
475         /* set the rirb size to 256 entries (ULI requires explicitly) */
476         azx_writeb(chip, RIRBSIZE, 0x02);
477         /* reset the rirb hw write pointer */
478         azx_writew(chip, RIRBWP, ICH6_RBRWP_CLR);
479         /* set N=1, get RIRB response interrupt for new entry */
480         azx_writew(chip, RINTCNT, 1);
481         /* enable rirb dma and response irq */
482         azx_writeb(chip, RIRBCTL, ICH6_RBCTL_DMA_EN | ICH6_RBCTL_IRQ_EN);
483         chip->rirb.rp = chip->rirb.cmds = 0;
484 }
485
486 static void azx_free_cmd_io(struct azx *chip)
487 {
488         /* disable ringbuffer DMAs */
489         azx_writeb(chip, RIRBCTL, 0);
490         azx_writeb(chip, CORBCTL, 0);
491 }
492
493 /* send a command */
494 static int azx_corb_send_cmd(struct hda_codec *codec, u32 val)
495 {
496         struct azx *chip = codec->bus->private_data;
497         unsigned int wp;
498
499         /* add command to corb */
500         wp = azx_readb(chip, CORBWP);
501         wp++;
502         wp %= ICH6_MAX_CORB_ENTRIES;
503
504         spin_lock_irq(&chip->reg_lock);
505         chip->rirb.cmds++;
506         chip->corb.buf[wp] = cpu_to_le32(val);
507         azx_writel(chip, CORBWP, wp);
508         spin_unlock_irq(&chip->reg_lock);
509
510         return 0;
511 }
512
513 #define ICH6_RIRB_EX_UNSOL_EV   (1<<4)
514
515 /* retrieve RIRB entry - called from interrupt handler */
516 static void azx_update_rirb(struct azx *chip)
517 {
518         unsigned int rp, wp;
519         u32 res, res_ex;
520
521         wp = azx_readb(chip, RIRBWP);
522         if (wp == chip->rirb.wp)
523                 return;
524         chip->rirb.wp = wp;
525                 
526         while (chip->rirb.rp != wp) {
527                 chip->rirb.rp++;
528                 chip->rirb.rp %= ICH6_MAX_RIRB_ENTRIES;
529
530                 rp = chip->rirb.rp << 1; /* an RIRB entry is 8-bytes */
531                 res_ex = le32_to_cpu(chip->rirb.buf[rp + 1]);
532                 res = le32_to_cpu(chip->rirb.buf[rp]);
533                 if (res_ex & ICH6_RIRB_EX_UNSOL_EV)
534                         snd_hda_queue_unsol_event(chip->bus, res, res_ex);
535                 else if (chip->rirb.cmds) {
536                         chip->rirb.cmds--;
537                         chip->rirb.res = res;
538                 }
539         }
540 }
541
542 /* receive a response */
543 static unsigned int azx_rirb_get_response(struct hda_codec *codec)
544 {
545         struct azx *chip = codec->bus->private_data;
546         unsigned long timeout;
547
548  again:
549         timeout = jiffies + msecs_to_jiffies(1000);
550         do {
551                 if (chip->polling_mode) {
552                         spin_lock_irq(&chip->reg_lock);
553                         azx_update_rirb(chip);
554                         spin_unlock_irq(&chip->reg_lock);
555                 }
556                 if (!chip->rirb.cmds)
557                         return chip->rirb.res; /* the last value */
558                 schedule_timeout(1);
559         } while (time_after_eq(timeout, jiffies));
560
561         if (chip->msi) {
562                 snd_printk(KERN_WARNING "hda_intel: No response from codec, "
563                            "disabling MSI: last cmd=0x%08x\n", chip->last_cmd);
564                 free_irq(chip->irq, chip);
565                 chip->irq = -1;
566                 pci_disable_msi(chip->pci);
567                 chip->msi = 0;
568                 if (azx_acquire_irq(chip, 1) < 0)
569                         return -1;
570                 goto again;
571         }
572
573         if (!chip->polling_mode) {
574                 snd_printk(KERN_WARNING "hda_intel: azx_get_response timeout, "
575                            "switching to polling mode: last cmd=0x%08x\n",
576                            chip->last_cmd);
577                 chip->polling_mode = 1;
578                 goto again;
579         }
580
581         snd_printk(KERN_ERR "hda_intel: azx_get_response timeout, "
582                    "switching to single_cmd mode: last cmd=0x%08x\n",
583                    chip->last_cmd);
584         chip->rirb.rp = azx_readb(chip, RIRBWP);
585         chip->rirb.cmds = 0;
586         /* switch to single_cmd mode */
587         chip->single_cmd = 1;
588         azx_free_cmd_io(chip);
589         return -1;
590 }
591
592 /*
593  * Use the single immediate command instead of CORB/RIRB for simplicity
594  *
595  * Note: according to Intel, this is not preferred use.  The command was
596  *       intended for the BIOS only, and may get confused with unsolicited
597  *       responses.  So, we shouldn't use it for normal operation from the
598  *       driver.
599  *       I left the codes, however, for debugging/testing purposes.
600  */
601
602 /* send a command */
603 static int azx_single_send_cmd(struct hda_codec *codec, u32 val)
604 {
605         struct azx *chip = codec->bus->private_data;
606         int timeout = 50;
607
608         while (timeout--) {
609                 /* check ICB busy bit */
610                 if (!((azx_readw(chip, IRS) & ICH6_IRS_BUSY))) {
611                         /* Clear IRV valid bit */
612                         azx_writew(chip, IRS, azx_readw(chip, IRS) |
613                                    ICH6_IRS_VALID);
614                         azx_writel(chip, IC, val);
615                         azx_writew(chip, IRS, azx_readw(chip, IRS) |
616                                    ICH6_IRS_BUSY);
617                         return 0;
618                 }
619                 udelay(1);
620         }
621         snd_printd(SFX "send_cmd timeout: IRS=0x%x, val=0x%x\n",
622                    azx_readw(chip, IRS), val);
623         return -EIO;
624 }
625
626 /* receive a response */
627 static unsigned int azx_single_get_response(struct hda_codec *codec)
628 {
629         struct azx *chip = codec->bus->private_data;
630         int timeout = 50;
631
632         while (timeout--) {
633                 /* check IRV busy bit */
634                 if (azx_readw(chip, IRS) & ICH6_IRS_VALID)
635                         return azx_readl(chip, IR);
636                 udelay(1);
637         }
638         snd_printd(SFX "get_response timeout: IRS=0x%x\n",
639                    azx_readw(chip, IRS));
640         return (unsigned int)-1;
641 }
642
643 /*
644  * The below are the main callbacks from hda_codec.
645  *
646  * They are just the skeleton to call sub-callbacks according to the
647  * current setting of chip->single_cmd.
648  */
649
650 /* send a command */
651 static int azx_send_cmd(struct hda_codec *codec, hda_nid_t nid,
652                         int direct, unsigned int verb,
653                         unsigned int para)
654 {
655         struct azx *chip = codec->bus->private_data;
656         u32 val;
657
658         val = (u32)(codec->addr & 0x0f) << 28;
659         val |= (u32)direct << 27;
660         val |= (u32)nid << 20;
661         val |= verb << 8;
662         val |= para;
663         chip->last_cmd = val;
664
665         if (chip->single_cmd)
666                 return azx_single_send_cmd(codec, val);
667         else
668                 return azx_corb_send_cmd(codec, val);
669 }
670
671 /* get a response */
672 static unsigned int azx_get_response(struct hda_codec *codec)
673 {
674         struct azx *chip = codec->bus->private_data;
675         if (chip->single_cmd)
676                 return azx_single_get_response(codec);
677         else
678                 return azx_rirb_get_response(codec);
679 }
680
681 #ifdef CONFIG_SND_HDA_POWER_SAVE
682 static void azx_power_notify(struct hda_codec *codec);
683 #endif
684
685 /* reset codec link */
686 static int azx_reset(struct azx *chip)
687 {
688         int count;
689
690         /* reset controller */
691         azx_writel(chip, GCTL, azx_readl(chip, GCTL) & ~ICH6_GCTL_RESET);
692
693         count = 50;
694         while (azx_readb(chip, GCTL) && --count)
695                 msleep(1);
696
697         /* delay for >= 100us for codec PLL to settle per spec
698          * Rev 0.9 section 5.5.1
699          */
700         msleep(1);
701
702         /* Bring controller out of reset */
703         azx_writeb(chip, GCTL, azx_readb(chip, GCTL) | ICH6_GCTL_RESET);
704
705         count = 50;
706         while (!azx_readb(chip, GCTL) && --count)
707                 msleep(1);
708
709         /* Brent Chartrand said to wait >= 540us for codecs to initialize */
710         msleep(1);
711
712         /* check to see if controller is ready */
713         if (!azx_readb(chip, GCTL)) {
714                 snd_printd("azx_reset: controller not ready!\n");
715                 return -EBUSY;
716         }
717
718         /* Accept unsolicited responses */
719         azx_writel(chip, GCTL, azx_readl(chip, GCTL) | ICH6_GCTL_UREN);
720
721         /* detect codecs */
722         if (!chip->codec_mask) {
723                 chip->codec_mask = azx_readw(chip, STATESTS);
724                 snd_printdd("codec_mask = 0x%x\n", chip->codec_mask);
725         }
726
727         return 0;
728 }
729
730
731 /*
732  * Lowlevel interface
733  */  
734
735 /* enable interrupts */
736 static void azx_int_enable(struct azx *chip)
737 {
738         /* enable controller CIE and GIE */
739         azx_writel(chip, INTCTL, azx_readl(chip, INTCTL) |
740                    ICH6_INT_CTRL_EN | ICH6_INT_GLOBAL_EN);
741 }
742
743 /* disable interrupts */
744 static void azx_int_disable(struct azx *chip)
745 {
746         int i;
747
748         /* disable interrupts in stream descriptor */
749         for (i = 0; i < chip->num_streams; i++) {
750                 struct azx_dev *azx_dev = &chip->azx_dev[i];
751                 azx_sd_writeb(azx_dev, SD_CTL,
752                               azx_sd_readb(azx_dev, SD_CTL) & ~SD_INT_MASK);
753         }
754
755         /* disable SIE for all streams */
756         azx_writeb(chip, INTCTL, 0);
757
758         /* disable controller CIE and GIE */
759         azx_writel(chip, INTCTL, azx_readl(chip, INTCTL) &
760                    ~(ICH6_INT_CTRL_EN | ICH6_INT_GLOBAL_EN));
761 }
762
763 /* clear interrupts */
764 static void azx_int_clear(struct azx *chip)
765 {
766         int i;
767
768         /* clear stream status */
769         for (i = 0; i < chip->num_streams; i++) {
770                 struct azx_dev *azx_dev = &chip->azx_dev[i];
771                 azx_sd_writeb(azx_dev, SD_STS, SD_INT_MASK);
772         }
773
774         /* clear STATESTS */
775         azx_writeb(chip, STATESTS, STATESTS_INT_MASK);
776
777         /* clear rirb status */
778         azx_writeb(chip, RIRBSTS, RIRB_INT_MASK);
779
780         /* clear int status */
781         azx_writel(chip, INTSTS, ICH6_INT_CTRL_EN | ICH6_INT_ALL_STREAM);
782 }
783
784 /* start a stream */
785 static void azx_stream_start(struct azx *chip, struct azx_dev *azx_dev)
786 {
787         /* enable SIE */
788         azx_writeb(chip, INTCTL,
789                    azx_readb(chip, INTCTL) | (1 << azx_dev->index));
790         /* set DMA start and interrupt mask */
791         azx_sd_writeb(azx_dev, SD_CTL, azx_sd_readb(azx_dev, SD_CTL) |
792                       SD_CTL_DMA_START | SD_INT_MASK);
793 }
794
795 /* stop a stream */
796 static void azx_stream_stop(struct azx *chip, struct azx_dev *azx_dev)
797 {
798         /* stop DMA */
799         azx_sd_writeb(azx_dev, SD_CTL, azx_sd_readb(azx_dev, SD_CTL) &
800                       ~(SD_CTL_DMA_START | SD_INT_MASK));
801         azx_sd_writeb(azx_dev, SD_STS, SD_INT_MASK); /* to be sure */
802         /* disable SIE */
803         azx_writeb(chip, INTCTL,
804                    azx_readb(chip, INTCTL) & ~(1 << azx_dev->index));
805 }
806
807
808 /*
809  * reset and start the controller registers
810  */
811 static void azx_init_chip(struct azx *chip)
812 {
813         if (chip->initialized)
814                 return;
815
816         /* reset controller */
817         azx_reset(chip);
818
819         /* initialize interrupts */
820         azx_int_clear(chip);
821         azx_int_enable(chip);
822
823         /* initialize the codec command I/O */
824         if (!chip->single_cmd)
825                 azx_init_cmd_io(chip);
826
827         /* program the position buffer */
828         azx_writel(chip, DPLBASE, (u32)chip->posbuf.addr);
829         azx_writel(chip, DPUBASE, upper_32bit(chip->posbuf.addr));
830
831         chip->initialized = 1;
832 }
833
834 /*
835  * initialize the PCI registers
836  */
837 /* update bits in a PCI register byte */
838 static void update_pci_byte(struct pci_dev *pci, unsigned int reg,
839                             unsigned char mask, unsigned char val)
840 {
841         unsigned char data;
842
843         pci_read_config_byte(pci, reg, &data);
844         data &= ~mask;
845         data |= (val & mask);
846         pci_write_config_byte(pci, reg, data);
847 }
848
849 static void azx_init_pci(struct azx *chip)
850 {
851         /* Clear bits 0-2 of PCI register TCSEL (at offset 0x44)
852          * TCSEL == Traffic Class Select Register, which sets PCI express QOS
853          * Ensuring these bits are 0 clears playback static on some HD Audio
854          * codecs
855          */
856         update_pci_byte(chip->pci, ICH6_PCIREG_TCSEL, 0x07, 0);
857
858         switch (chip->driver_type) {
859         case AZX_DRIVER_ATI:
860                 /* For ATI SB450 azalia HD audio, we need to enable snoop */
861                 update_pci_byte(chip->pci,
862                                 ATI_SB450_HDAUDIO_MISC_CNTR2_ADDR, 
863                                 0x07, ATI_SB450_HDAUDIO_ENABLE_SNOOP);
864                 break;
865         case AZX_DRIVER_NVIDIA:
866                 /* For NVIDIA HDA, enable snoop */
867                 update_pci_byte(chip->pci,
868                                 NVIDIA_HDA_TRANSREG_ADDR,
869                                 0x0f, NVIDIA_HDA_ENABLE_COHBITS);
870                 break;
871         }
872 }
873
874
875 /*
876  * interrupt handler
877  */
878 static irqreturn_t azx_interrupt(int irq, void *dev_id)
879 {
880         struct azx *chip = dev_id;
881         struct azx_dev *azx_dev;
882         u32 status;
883         int i;
884
885         spin_lock(&chip->reg_lock);
886
887         status = azx_readl(chip, INTSTS);
888         if (status == 0) {
889                 spin_unlock(&chip->reg_lock);
890                 return IRQ_NONE;
891         }
892         
893         for (i = 0; i < chip->num_streams; i++) {
894                 azx_dev = &chip->azx_dev[i];
895                 if (status & azx_dev->sd_int_sta_mask) {
896                         azx_sd_writeb(azx_dev, SD_STS, SD_INT_MASK);
897                         if (azx_dev->substream && azx_dev->running) {
898                                 azx_dev->period_intr++;
899                                 spin_unlock(&chip->reg_lock);
900                                 snd_pcm_period_elapsed(azx_dev->substream);
901                                 spin_lock(&chip->reg_lock);
902                         }
903                 }
904         }
905
906         /* clear rirb int */
907         status = azx_readb(chip, RIRBSTS);
908         if (status & RIRB_INT_MASK) {
909                 if (!chip->single_cmd && (status & RIRB_INT_RESPONSE))
910                         azx_update_rirb(chip);
911                 azx_writeb(chip, RIRBSTS, RIRB_INT_MASK);
912         }
913
914 #if 0
915         /* clear state status int */
916         if (azx_readb(chip, STATESTS) & 0x04)
917                 azx_writeb(chip, STATESTS, 0x04);
918 #endif
919         spin_unlock(&chip->reg_lock);
920         
921         return IRQ_HANDLED;
922 }
923
924
925 /*
926  * set up BDL entries
927  */
928 static void azx_setup_periods(struct azx_dev *azx_dev)
929 {
930         u32 *bdl = azx_dev->bdl;
931         dma_addr_t dma_addr = azx_dev->substream->runtime->dma_addr;
932         int idx;
933
934         /* reset BDL address */
935         azx_sd_writel(azx_dev, SD_BDLPL, 0);
936         azx_sd_writel(azx_dev, SD_BDLPU, 0);
937
938         /* program the initial BDL entries */
939         for (idx = 0; idx < azx_dev->frags; idx++) {
940                 unsigned int off = idx << 2; /* 4 dword step */
941                 dma_addr_t addr = dma_addr + idx * azx_dev->fragsize;
942                 /* program the address field of the BDL entry */
943                 bdl[off] = cpu_to_le32((u32)addr);
944                 bdl[off+1] = cpu_to_le32(upper_32bit(addr));
945
946                 /* program the size field of the BDL entry */
947                 bdl[off+2] = cpu_to_le32(azx_dev->fragsize);
948
949                 /* program the IOC to enable interrupt when buffer completes */
950                 bdl[off+3] = cpu_to_le32(0x01);
951         }
952 }
953
954 /*
955  * set up the SD for streaming
956  */
957 static int azx_setup_controller(struct azx *chip, struct azx_dev *azx_dev)
958 {
959         unsigned char val;
960         int timeout;
961
962         /* make sure the run bit is zero for SD */
963         azx_sd_writeb(azx_dev, SD_CTL, azx_sd_readb(azx_dev, SD_CTL) &
964                       ~SD_CTL_DMA_START);
965         /* reset stream */
966         azx_sd_writeb(azx_dev, SD_CTL, azx_sd_readb(azx_dev, SD_CTL) |
967                       SD_CTL_STREAM_RESET);
968         udelay(3);
969         timeout = 300;
970         while (!((val = azx_sd_readb(azx_dev, SD_CTL)) & SD_CTL_STREAM_RESET) &&
971                --timeout)
972                 ;
973         val &= ~SD_CTL_STREAM_RESET;
974         azx_sd_writeb(azx_dev, SD_CTL, val);
975         udelay(3);
976
977         timeout = 300;
978         /* waiting for hardware to report that the stream is out of reset */
979         while (((val = azx_sd_readb(azx_dev, SD_CTL)) & SD_CTL_STREAM_RESET) &&
980                --timeout)
981                 ;
982
983         /* program the stream_tag */
984         azx_sd_writel(azx_dev, SD_CTL,
985                       (azx_sd_readl(azx_dev, SD_CTL) & ~SD_CTL_STREAM_TAG_MASK)|
986                       (azx_dev->stream_tag << SD_CTL_STREAM_TAG_SHIFT));
987
988         /* program the length of samples in cyclic buffer */
989         azx_sd_writel(azx_dev, SD_CBL, azx_dev->bufsize);
990
991         /* program the stream format */
992         /* this value needs to be the same as the one programmed */
993         azx_sd_writew(azx_dev, SD_FORMAT, azx_dev->format_val);
994
995         /* program the stream LVI (last valid index) of the BDL */
996         azx_sd_writew(azx_dev, SD_LVI, azx_dev->frags - 1);
997
998         /* program the BDL address */
999         /* lower BDL address */
1000         azx_sd_writel(azx_dev, SD_BDLPL, (u32)azx_dev->bdl_addr);
1001         /* upper BDL address */
1002         azx_sd_writel(azx_dev, SD_BDLPU, upper_32bit(azx_dev->bdl_addr));
1003
1004         /* enable the position buffer */
1005         if (!(azx_readl(chip, DPLBASE) & ICH6_DPLBASE_ENABLE))
1006                 azx_writel(chip, DPLBASE,
1007                            (u32)chip->posbuf.addr |ICH6_DPLBASE_ENABLE);
1008
1009         /* set the interrupt enable bits in the descriptor control register */
1010         azx_sd_writel(azx_dev, SD_CTL,
1011                       azx_sd_readl(azx_dev, SD_CTL) | SD_INT_MASK);
1012
1013         return 0;
1014 }
1015
1016
1017 /*
1018  * Codec initialization
1019  */
1020
1021 static unsigned int azx_max_codecs[] __devinitdata = {
1022         [AZX_DRIVER_ICH] = 3,
1023         [AZX_DRIVER_ATI] = 4,
1024         [AZX_DRIVER_ATIHDMI] = 4,
1025         [AZX_DRIVER_VIA] = 3,           /* FIXME: correct? */
1026         [AZX_DRIVER_SIS] = 3,           /* FIXME: correct? */
1027         [AZX_DRIVER_ULI] = 3,           /* FIXME: correct? */
1028         [AZX_DRIVER_NVIDIA] = 3,        /* FIXME: correct? */
1029 };
1030
1031 static int __devinit azx_codec_create(struct azx *chip, const char *model)
1032 {
1033         struct hda_bus_template bus_temp;
1034         int c, codecs, audio_codecs, err;
1035
1036         memset(&bus_temp, 0, sizeof(bus_temp));
1037         bus_temp.private_data = chip;
1038         bus_temp.modelname = model;
1039         bus_temp.pci = chip->pci;
1040         bus_temp.ops.command = azx_send_cmd;
1041         bus_temp.ops.get_response = azx_get_response;
1042 #ifdef CONFIG_SND_HDA_POWER_SAVE
1043         bus_temp.ops.pm_notify = azx_power_notify;
1044 #endif
1045
1046         err = snd_hda_bus_new(chip->card, &bus_temp, &chip->bus);
1047         if (err < 0)
1048                 return err;
1049
1050         codecs = audio_codecs = 0;
1051         for (c = 0; c < AZX_MAX_CODECS; c++) {
1052                 if ((chip->codec_mask & (1 << c)) & probe_mask) {
1053                         struct hda_codec *codec;
1054                         err = snd_hda_codec_new(chip->bus, c, &codec);
1055                         if (err < 0)
1056                                 continue;
1057                         codecs++;
1058                         if (codec->afg)
1059                                 audio_codecs++;
1060                 }
1061         }
1062         if (!audio_codecs) {
1063                 /* probe additional slots if no codec is found */
1064                 for (; c < azx_max_codecs[chip->driver_type]; c++) {
1065                         if ((chip->codec_mask & (1 << c)) & probe_mask) {
1066                                 err = snd_hda_codec_new(chip->bus, c, NULL);
1067                                 if (err < 0)
1068                                         continue;
1069                                 codecs++;
1070                         }
1071                 }
1072         }
1073         if (!codecs) {
1074                 snd_printk(KERN_ERR SFX "no codecs initialized\n");
1075                 return -ENXIO;
1076         }
1077
1078         return 0;
1079 }
1080
1081
1082 /*
1083  * PCM support
1084  */
1085
1086 /* assign a stream for the PCM */
1087 static inline struct azx_dev *azx_assign_device(struct azx *chip, int stream)
1088 {
1089         int dev, i, nums;
1090         if (stream == SNDRV_PCM_STREAM_PLAYBACK) {
1091                 dev = chip->playback_index_offset;
1092                 nums = chip->playback_streams;
1093         } else {
1094                 dev = chip->capture_index_offset;
1095                 nums = chip->capture_streams;
1096         }
1097         for (i = 0; i < nums; i++, dev++)
1098                 if (!chip->azx_dev[dev].opened) {
1099                         chip->azx_dev[dev].opened = 1;
1100                         return &chip->azx_dev[dev];
1101                 }
1102         return NULL;
1103 }
1104
1105 /* release the assigned stream */
1106 static inline void azx_release_device(struct azx_dev *azx_dev)
1107 {
1108         azx_dev->opened = 0;
1109 }
1110
1111 static struct snd_pcm_hardware azx_pcm_hw = {
1112         .info =                 (SNDRV_PCM_INFO_MMAP |
1113                                  SNDRV_PCM_INFO_INTERLEAVED |
1114                                  SNDRV_PCM_INFO_BLOCK_TRANSFER |
1115                                  SNDRV_PCM_INFO_MMAP_VALID |
1116                                  /* No full-resume yet implemented */
1117                                  /* SNDRV_PCM_INFO_RESUME |*/
1118                                  SNDRV_PCM_INFO_PAUSE),
1119         .formats =              SNDRV_PCM_FMTBIT_S16_LE,
1120         .rates =                SNDRV_PCM_RATE_48000,
1121         .rate_min =             48000,
1122         .rate_max =             48000,
1123         .channels_min =         2,
1124         .channels_max =         2,
1125         .buffer_bytes_max =     AZX_MAX_BUF_SIZE,
1126         .period_bytes_min =     128,
1127         .period_bytes_max =     AZX_MAX_BUF_SIZE / 2,
1128         .periods_min =          2,
1129         .periods_max =          AZX_MAX_FRAG,
1130         .fifo_size =            0,
1131 };
1132
1133 struct azx_pcm {
1134         struct azx *chip;
1135         struct hda_codec *codec;
1136         struct hda_pcm_stream *hinfo[2];
1137 };
1138
1139 static int azx_pcm_open(struct snd_pcm_substream *substream)
1140 {
1141         struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
1142         struct hda_pcm_stream *hinfo = apcm->hinfo[substream->stream];
1143         struct azx *chip = apcm->chip;
1144         struct azx_dev *azx_dev;
1145         struct snd_pcm_runtime *runtime = substream->runtime;
1146         unsigned long flags;
1147         int err;
1148
1149         mutex_lock(&chip->open_mutex);
1150         azx_dev = azx_assign_device(chip, substream->stream);
1151         if (azx_dev == NULL) {
1152                 mutex_unlock(&chip->open_mutex);
1153                 return -EBUSY;
1154         }
1155         runtime->hw = azx_pcm_hw;
1156         runtime->hw.channels_min = hinfo->channels_min;
1157         runtime->hw.channels_max = hinfo->channels_max;
1158         runtime->hw.formats = hinfo->formats;
1159         runtime->hw.rates = hinfo->rates;
1160         snd_pcm_limit_hw_rates(runtime);
1161         snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS);
1162         snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_BUFFER_BYTES,
1163                                    128);
1164         snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES,
1165                                    128);
1166         snd_hda_power_up(apcm->codec);
1167         err = hinfo->ops.open(hinfo, apcm->codec, substream);
1168         if (err < 0) {
1169                 azx_release_device(azx_dev);
1170                 snd_hda_power_down(apcm->codec);
1171                 mutex_unlock(&chip->open_mutex);
1172                 return err;
1173         }
1174         spin_lock_irqsave(&chip->reg_lock, flags);
1175         azx_dev->substream = substream;
1176         azx_dev->running = 0;
1177         spin_unlock_irqrestore(&chip->reg_lock, flags);
1178
1179         runtime->private_data = azx_dev;
1180         mutex_unlock(&chip->open_mutex);
1181         return 0;
1182 }
1183
1184 static int azx_pcm_close(struct snd_pcm_substream *substream)
1185 {
1186         struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
1187         struct hda_pcm_stream *hinfo = apcm->hinfo[substream->stream];
1188         struct azx *chip = apcm->chip;
1189         struct azx_dev *azx_dev = get_azx_dev(substream);
1190         unsigned long flags;
1191
1192         mutex_lock(&chip->open_mutex);
1193         spin_lock_irqsave(&chip->reg_lock, flags);
1194         azx_dev->substream = NULL;
1195         azx_dev->running = 0;
1196         spin_unlock_irqrestore(&chip->reg_lock, flags);
1197         azx_release_device(azx_dev);
1198         hinfo->ops.close(hinfo, apcm->codec, substream);
1199         snd_hda_power_down(apcm->codec);
1200         mutex_unlock(&chip->open_mutex);
1201         return 0;
1202 }
1203
1204 static int azx_pcm_hw_params(struct snd_pcm_substream *substream,
1205                              struct snd_pcm_hw_params *hw_params)
1206 {
1207         return snd_pcm_lib_malloc_pages(substream,
1208                                         params_buffer_bytes(hw_params));
1209 }
1210
1211 static int azx_pcm_hw_free(struct snd_pcm_substream *substream)
1212 {
1213         struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
1214         struct azx_dev *azx_dev = get_azx_dev(substream);
1215         struct hda_pcm_stream *hinfo = apcm->hinfo[substream->stream];
1216
1217         /* reset BDL address */
1218         azx_sd_writel(azx_dev, SD_BDLPL, 0);
1219         azx_sd_writel(azx_dev, SD_BDLPU, 0);
1220         azx_sd_writel(azx_dev, SD_CTL, 0);
1221
1222         hinfo->ops.cleanup(hinfo, apcm->codec, substream);
1223
1224         return snd_pcm_lib_free_pages(substream);
1225 }
1226
1227 static int azx_pcm_prepare(struct snd_pcm_substream *substream)
1228 {
1229         struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
1230         struct azx *chip = apcm->chip;
1231         struct azx_dev *azx_dev = get_azx_dev(substream);
1232         struct hda_pcm_stream *hinfo = apcm->hinfo[substream->stream];
1233         struct snd_pcm_runtime *runtime = substream->runtime;
1234
1235         azx_dev->bufsize = snd_pcm_lib_buffer_bytes(substream);
1236         azx_dev->fragsize = snd_pcm_lib_period_bytes(substream);
1237         azx_dev->frags = azx_dev->bufsize / azx_dev->fragsize;
1238         azx_dev->format_val = snd_hda_calc_stream_format(runtime->rate,
1239                                                          runtime->channels,
1240                                                          runtime->format,
1241                                                          hinfo->maxbps);
1242         if (!azx_dev->format_val) {
1243                 snd_printk(KERN_ERR SFX
1244                            "invalid format_val, rate=%d, ch=%d, format=%d\n",
1245                            runtime->rate, runtime->channels, runtime->format);
1246                 return -EINVAL;
1247         }
1248
1249         snd_printdd("azx_pcm_prepare: bufsize=0x%x, fragsize=0x%x, "
1250                     "format=0x%x\n",
1251                     azx_dev->bufsize, azx_dev->fragsize, azx_dev->format_val);
1252         azx_setup_periods(azx_dev);
1253         azx_setup_controller(chip, azx_dev);
1254         if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
1255                 azx_dev->fifo_size = azx_sd_readw(azx_dev, SD_FIFOSIZE) + 1;
1256         else
1257                 azx_dev->fifo_size = 0;
1258
1259         return hinfo->ops.prepare(hinfo, apcm->codec, azx_dev->stream_tag,
1260                                   azx_dev->format_val, substream);
1261 }
1262
1263 static int azx_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
1264 {
1265         struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
1266         struct azx_dev *azx_dev = get_azx_dev(substream);
1267         struct azx *chip = apcm->chip;
1268         int err = 0;
1269
1270         spin_lock(&chip->reg_lock);
1271         switch (cmd) {
1272         case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
1273         case SNDRV_PCM_TRIGGER_RESUME:
1274         case SNDRV_PCM_TRIGGER_START:
1275                 azx_stream_start(chip, azx_dev);
1276                 azx_dev->running = 1;
1277                 break;
1278         case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
1279         case SNDRV_PCM_TRIGGER_SUSPEND:
1280         case SNDRV_PCM_TRIGGER_STOP:
1281                 azx_stream_stop(chip, azx_dev);
1282                 azx_dev->running = 0;
1283                 break;
1284         default:
1285                 err = -EINVAL;
1286         }
1287         spin_unlock(&chip->reg_lock);
1288         if (cmd == SNDRV_PCM_TRIGGER_PAUSE_PUSH ||
1289             cmd == SNDRV_PCM_TRIGGER_SUSPEND ||
1290             cmd == SNDRV_PCM_TRIGGER_STOP) {
1291                 int timeout = 5000;
1292                 while ((azx_sd_readb(azx_dev, SD_CTL) & SD_CTL_DMA_START) &&
1293                        --timeout)
1294                         ;
1295         }
1296         return err;
1297 }
1298
1299 static snd_pcm_uframes_t azx_pcm_pointer(struct snd_pcm_substream *substream)
1300 {
1301         struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
1302         struct azx *chip = apcm->chip;
1303         struct azx_dev *azx_dev = get_azx_dev(substream);
1304         unsigned int pos;
1305
1306         if (chip->position_fix == POS_FIX_POSBUF ||
1307             chip->position_fix == POS_FIX_AUTO) {
1308                 /* use the position buffer */
1309                 pos = le32_to_cpu(*azx_dev->posbuf);
1310                 if (chip->position_fix == POS_FIX_AUTO &&
1311                     azx_dev->period_intr == 1 && !pos) {
1312                         printk(KERN_WARNING
1313                                "hda-intel: Invalid position buffer, "
1314                                "using LPIB read method instead.\n");
1315                         chip->position_fix = POS_FIX_NONE;
1316                         goto read_lpib;
1317                 }
1318         } else {
1319         read_lpib:
1320                 /* read LPIB */
1321                 pos = azx_sd_readl(azx_dev, SD_LPIB);
1322                 if (chip->position_fix == POS_FIX_FIFO)
1323                         pos += azx_dev->fifo_size;
1324         }
1325         if (pos >= azx_dev->bufsize)
1326                 pos = 0;
1327         return bytes_to_frames(substream->runtime, pos);
1328 }
1329
1330 static struct snd_pcm_ops azx_pcm_ops = {
1331         .open = azx_pcm_open,
1332         .close = azx_pcm_close,
1333         .ioctl = snd_pcm_lib_ioctl,
1334         .hw_params = azx_pcm_hw_params,
1335         .hw_free = azx_pcm_hw_free,
1336         .prepare = azx_pcm_prepare,
1337         .trigger = azx_pcm_trigger,
1338         .pointer = azx_pcm_pointer,
1339 };
1340
1341 static void azx_pcm_free(struct snd_pcm *pcm)
1342 {
1343         kfree(pcm->private_data);
1344 }
1345
1346 static int __devinit create_codec_pcm(struct azx *chip, struct hda_codec *codec,
1347                                       struct hda_pcm *cpcm, int pcm_dev)
1348 {
1349         int err;
1350         struct snd_pcm *pcm;
1351         struct azx_pcm *apcm;
1352
1353         /* if no substreams are defined for both playback and capture,
1354          * it's just a placeholder.  ignore it.
1355          */
1356         if (!cpcm->stream[0].substreams && !cpcm->stream[1].substreams)
1357                 return 0;
1358
1359         snd_assert(cpcm->name, return -EINVAL);
1360
1361         err = snd_pcm_new(chip->card, cpcm->name, pcm_dev,
1362                           cpcm->stream[0].substreams,
1363                           cpcm->stream[1].substreams,
1364                           &pcm);
1365         if (err < 0)
1366                 return err;
1367         strcpy(pcm->name, cpcm->name);
1368         apcm = kmalloc(sizeof(*apcm), GFP_KERNEL);
1369         if (apcm == NULL)
1370                 return -ENOMEM;
1371         apcm->chip = chip;
1372         apcm->codec = codec;
1373         apcm->hinfo[0] = &cpcm->stream[0];
1374         apcm->hinfo[1] = &cpcm->stream[1];
1375         pcm->private_data = apcm;
1376         pcm->private_free = azx_pcm_free;
1377         if (cpcm->stream[0].substreams)
1378                 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &azx_pcm_ops);
1379         if (cpcm->stream[1].substreams)
1380                 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &azx_pcm_ops);
1381         snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
1382                                               snd_dma_pci_data(chip->pci),
1383                                               1024 * 64, 1024 * 1024);
1384         chip->pcm[pcm_dev] = pcm;
1385         if (chip->pcm_devs < pcm_dev + 1)
1386                 chip->pcm_devs = pcm_dev + 1;
1387
1388         return 0;
1389 }
1390
1391 static int __devinit azx_pcm_create(struct azx *chip)
1392 {
1393         struct list_head *p;
1394         struct hda_codec *codec;
1395         int c, err;
1396         int pcm_dev;
1397
1398         err = snd_hda_build_pcms(chip->bus);
1399         if (err < 0)
1400                 return err;
1401
1402         /* create audio PCMs */
1403         pcm_dev = 0;
1404         list_for_each(p, &chip->bus->codec_list) {
1405                 codec = list_entry(p, struct hda_codec, list);
1406                 for (c = 0; c < codec->num_pcms; c++) {
1407                         if (codec->pcm_info[c].is_modem)
1408                                 continue; /* create later */
1409                         if (pcm_dev >= AZX_MAX_AUDIO_PCMS) {
1410                                 snd_printk(KERN_ERR SFX
1411                                            "Too many audio PCMs\n");
1412                                 return -EINVAL;
1413                         }
1414                         err = create_codec_pcm(chip, codec,
1415                                                &codec->pcm_info[c], pcm_dev);
1416                         if (err < 0)
1417                                 return err;
1418                         pcm_dev++;
1419                 }
1420         }
1421
1422         /* create modem PCMs */
1423         pcm_dev = AZX_MAX_AUDIO_PCMS;
1424         list_for_each(p, &chip->bus->codec_list) {
1425                 codec = list_entry(p, struct hda_codec, list);
1426                 for (c = 0; c < codec->num_pcms; c++) {
1427                         if (!codec->pcm_info[c].is_modem)
1428                                 continue; /* already created */
1429                         if (pcm_dev >= AZX_MAX_PCMS) {
1430                                 snd_printk(KERN_ERR SFX
1431                                            "Too many modem PCMs\n");
1432                                 return -EINVAL;
1433                         }
1434                         err = create_codec_pcm(chip, codec,
1435                                                &codec->pcm_info[c], pcm_dev);
1436                         if (err < 0)
1437                                 return err;
1438                         chip->pcm[pcm_dev]->dev_class = SNDRV_PCM_CLASS_MODEM;
1439                         pcm_dev++;
1440                 }
1441         }
1442         return 0;
1443 }
1444
1445 /*
1446  * mixer creation - all stuff is implemented in hda module
1447  */
1448 static int __devinit azx_mixer_create(struct azx *chip)
1449 {
1450         return snd_hda_build_controls(chip->bus);
1451 }
1452
1453
1454 /*
1455  * initialize SD streams
1456  */
1457 static int __devinit azx_init_stream(struct azx *chip)
1458 {
1459         int i;
1460
1461         /* initialize each stream (aka device)
1462          * assign the starting bdl address to each stream (device)
1463          * and initialize
1464          */
1465         for (i = 0; i < chip->num_streams; i++) {
1466                 unsigned int off = sizeof(u32) * (i * AZX_MAX_FRAG * 4);
1467                 struct azx_dev *azx_dev = &chip->azx_dev[i];
1468                 azx_dev->bdl = (u32 *)(chip->bdl.area + off);
1469                 azx_dev->bdl_addr = chip->bdl.addr + off;
1470                 azx_dev->posbuf = (u32 __iomem *)(chip->posbuf.area + i * 8);
1471                 /* offset: SDI0=0x80, SDI1=0xa0, ... SDO3=0x160 */
1472                 azx_dev->sd_addr = chip->remap_addr + (0x20 * i + 0x80);
1473                 /* int mask: SDI0=0x01, SDI1=0x02, ... SDO3=0x80 */
1474                 azx_dev->sd_int_sta_mask = 1 << i;
1475                 /* stream tag: must be non-zero and unique */
1476                 azx_dev->index = i;
1477                 azx_dev->stream_tag = i + 1;
1478         }
1479
1480         return 0;
1481 }
1482
1483 static int azx_acquire_irq(struct azx *chip, int do_disconnect)
1484 {
1485         if (request_irq(chip->pci->irq, azx_interrupt,
1486                         chip->msi ? 0 : IRQF_SHARED,
1487                         "HDA Intel", chip)) {
1488                 printk(KERN_ERR "hda-intel: unable to grab IRQ %d, "
1489                        "disabling device\n", chip->pci->irq);
1490                 if (do_disconnect)
1491                         snd_card_disconnect(chip->card);
1492                 return -1;
1493         }
1494         chip->irq = chip->pci->irq;
1495         pci_intx(chip->pci, !chip->msi);
1496         return 0;
1497 }
1498
1499
1500 static void azx_stop_chip(struct azx *chip)
1501 {
1502         if (!chip->initialized)
1503                 return;
1504
1505         /* disable interrupts */
1506         azx_int_disable(chip);
1507         azx_int_clear(chip);
1508
1509         /* disable CORB/RIRB */
1510         azx_free_cmd_io(chip);
1511
1512         /* disable position buffer */
1513         azx_writel(chip, DPLBASE, 0);
1514         azx_writel(chip, DPUBASE, 0);
1515
1516         chip->initialized = 0;
1517 }
1518
1519 #ifdef CONFIG_SND_HDA_POWER_SAVE
1520 /* power-up/down the controller */
1521 static void azx_power_notify(struct hda_codec *codec)
1522 {
1523         struct azx *chip = codec->bus->private_data;
1524         struct hda_codec *c;
1525         int power_on = 0;
1526
1527         list_for_each_entry(c, &codec->bus->codec_list, list) {
1528                 if (c->power_on) {
1529                         power_on = 1;
1530                         break;
1531                 }
1532         }
1533         if (power_on)
1534                 azx_init_chip(chip);
1535         else if (chip->running && power_save_controller)
1536                 azx_stop_chip(chip);
1537 }
1538 #endif /* CONFIG_SND_HDA_POWER_SAVE */
1539
1540 #ifdef CONFIG_PM
1541 /*
1542  * power management
1543  */
1544 static int azx_suspend(struct pci_dev *pci, pm_message_t state)
1545 {
1546         struct snd_card *card = pci_get_drvdata(pci);
1547         struct azx *chip = card->private_data;
1548         int i;
1549
1550         snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
1551         for (i = 0; i < chip->pcm_devs; i++)
1552                 snd_pcm_suspend_all(chip->pcm[i]);
1553         if (chip->initialized)
1554                 snd_hda_suspend(chip->bus, state);
1555         azx_stop_chip(chip);
1556         if (chip->irq >= 0) {
1557                 synchronize_irq(chip->irq);
1558                 free_irq(chip->irq, chip);
1559                 chip->irq = -1;
1560         }
1561         if (chip->msi)
1562                 pci_disable_msi(chip->pci);
1563         pci_disable_device(pci);
1564         pci_save_state(pci);
1565         pci_set_power_state(pci, pci_choose_state(pci, state));
1566         return 0;
1567 }
1568
1569 static int azx_resume(struct pci_dev *pci)
1570 {
1571         struct snd_card *card = pci_get_drvdata(pci);
1572         struct azx *chip = card->private_data;
1573
1574         pci_set_power_state(pci, PCI_D0);
1575         pci_restore_state(pci);
1576         if (pci_enable_device(pci) < 0) {
1577                 printk(KERN_ERR "hda-intel: pci_enable_device failed, "
1578                        "disabling device\n");
1579                 snd_card_disconnect(card);
1580                 return -EIO;
1581         }
1582         pci_set_master(pci);
1583         if (chip->msi)
1584                 if (pci_enable_msi(pci) < 0)
1585                         chip->msi = 0;
1586         if (azx_acquire_irq(chip, 1) < 0)
1587                 return -EIO;
1588         azx_init_pci(chip);
1589
1590         if (snd_hda_codecs_inuse(chip->bus))
1591                 azx_init_chip(chip);
1592
1593         snd_hda_resume(chip->bus);
1594         snd_power_change_state(card, SNDRV_CTL_POWER_D0);
1595         return 0;
1596 }
1597 #endif /* CONFIG_PM */
1598
1599
1600 /*
1601  * destructor
1602  */
1603 static int azx_free(struct azx *chip)
1604 {
1605         if (chip->initialized) {
1606                 int i;
1607                 for (i = 0; i < chip->num_streams; i++)
1608                         azx_stream_stop(chip, &chip->azx_dev[i]);
1609                 azx_stop_chip(chip);
1610         }
1611
1612         if (chip->irq >= 0) {
1613                 synchronize_irq(chip->irq);
1614                 free_irq(chip->irq, (void*)chip);
1615         }
1616         if (chip->msi)
1617                 pci_disable_msi(chip->pci);
1618         if (chip->remap_addr)
1619                 iounmap(chip->remap_addr);
1620
1621         if (chip->bdl.area)
1622                 snd_dma_free_pages(&chip->bdl);
1623         if (chip->rb.area)
1624                 snd_dma_free_pages(&chip->rb);
1625         if (chip->posbuf.area)
1626                 snd_dma_free_pages(&chip->posbuf);
1627         pci_release_regions(chip->pci);
1628         pci_disable_device(chip->pci);
1629         kfree(chip->azx_dev);
1630         kfree(chip);
1631
1632         return 0;
1633 }
1634
1635 static int azx_dev_free(struct snd_device *device)
1636 {
1637         return azx_free(device->device_data);
1638 }
1639
1640 /*
1641  * white/black-listing for position_fix
1642  */
1643 static struct snd_pci_quirk position_fix_list[] __devinitdata = {
1644         SND_PCI_QUIRK(0x1028, 0x01cc, "Dell D820", POS_FIX_NONE),
1645         SND_PCI_QUIRK(0x1028, 0x01de, "Dell Precision 390", POS_FIX_NONE),
1646         {}
1647 };
1648
1649 static int __devinit check_position_fix(struct azx *chip, int fix)
1650 {
1651         const struct snd_pci_quirk *q;
1652
1653         if (fix == POS_FIX_AUTO) {
1654                 q = snd_pci_quirk_lookup(chip->pci, position_fix_list);
1655                 if (q) {
1656                         printk(KERN_INFO
1657                                     "hda_intel: position_fix set to %d "
1658                                     "for device %04x:%04x\n",
1659                                     q->value, q->subvendor, q->subdevice);
1660                         return q->value;
1661                 }
1662         }
1663         return fix;
1664 }
1665
1666 /*
1667  * black-lists for probe_mask
1668  */
1669 static struct snd_pci_quirk probe_mask_list[] __devinitdata = {
1670         /* Thinkpad often breaks the controller communication when accessing
1671          * to the non-working (or non-existing) modem codec slot.
1672          */
1673         SND_PCI_QUIRK(0x1014, 0x05b7, "Thinkpad Z60", 0x01),
1674         SND_PCI_QUIRK(0x17aa, 0x2010, "Thinkpad X/T/R60", 0x01),
1675         SND_PCI_QUIRK(0x17aa, 0x20ac, "Thinkpad X/T/R61", 0x01),
1676         {}
1677 };
1678
1679 static void __devinit check_probe_mask(struct azx *chip)
1680 {
1681         const struct snd_pci_quirk *q;
1682
1683         if (probe_mask == -1) {
1684                 q = snd_pci_quirk_lookup(chip->pci, probe_mask_list);
1685                 if (q) {
1686                         printk(KERN_INFO
1687                                "hda_intel: probe_mask set to 0x%x "
1688                                "for device %04x:%04x\n",
1689                                q->value, q->subvendor, q->subdevice);
1690                         probe_mask = q->value;
1691                 }
1692         }
1693 }
1694
1695
1696 /*
1697  * constructor
1698  */
1699 static int __devinit azx_create(struct snd_card *card, struct pci_dev *pci,
1700                                 int driver_type,
1701                                 struct azx **rchip)
1702 {
1703         struct azx *chip;
1704         int err;
1705         static struct snd_device_ops ops = {
1706                 .dev_free = azx_dev_free,
1707         };
1708
1709         *rchip = NULL;
1710         
1711         err = pci_enable_device(pci);
1712         if (err < 0)
1713                 return err;
1714
1715         chip = kzalloc(sizeof(*chip), GFP_KERNEL);
1716         if (!chip) {
1717                 snd_printk(KERN_ERR SFX "cannot allocate chip\n");
1718                 pci_disable_device(pci);
1719                 return -ENOMEM;
1720         }
1721
1722         spin_lock_init(&chip->reg_lock);
1723         mutex_init(&chip->open_mutex);
1724         chip->card = card;
1725         chip->pci = pci;
1726         chip->irq = -1;
1727         chip->driver_type = driver_type;
1728         chip->msi = enable_msi;
1729
1730         chip->position_fix = check_position_fix(chip, position_fix);
1731         check_probe_mask(chip);
1732
1733         chip->single_cmd = single_cmd;
1734
1735 #if BITS_PER_LONG != 64
1736         /* Fix up base address on ULI M5461 */
1737         if (chip->driver_type == AZX_DRIVER_ULI) {
1738                 u16 tmp3;
1739                 pci_read_config_word(pci, 0x40, &tmp3);
1740                 pci_write_config_word(pci, 0x40, tmp3 | 0x10);
1741                 pci_write_config_dword(pci, PCI_BASE_ADDRESS_1, 0);
1742         }
1743 #endif
1744
1745         err = pci_request_regions(pci, "ICH HD audio");
1746         if (err < 0) {
1747                 kfree(chip);
1748                 pci_disable_device(pci);
1749                 return err;
1750         }
1751
1752         chip->addr = pci_resource_start(pci, 0);
1753         chip->remap_addr = ioremap_nocache(chip->addr, pci_resource_len(pci,0));
1754         if (chip->remap_addr == NULL) {
1755                 snd_printk(KERN_ERR SFX "ioremap error\n");
1756                 err = -ENXIO;
1757                 goto errout;
1758         }
1759
1760         if (chip->msi)
1761                 if (pci_enable_msi(pci) < 0)
1762                         chip->msi = 0;
1763
1764         if (azx_acquire_irq(chip, 0) < 0) {
1765                 err = -EBUSY;
1766                 goto errout;
1767         }
1768
1769         pci_set_master(pci);
1770         synchronize_irq(chip->irq);
1771
1772         switch (chip->driver_type) {
1773         case AZX_DRIVER_ULI:
1774                 chip->playback_streams = ULI_NUM_PLAYBACK;
1775                 chip->capture_streams = ULI_NUM_CAPTURE;
1776                 chip->playback_index_offset = ULI_PLAYBACK_INDEX;
1777                 chip->capture_index_offset = ULI_CAPTURE_INDEX;
1778                 break;
1779         case AZX_DRIVER_ATIHDMI:
1780                 chip->playback_streams = ATIHDMI_NUM_PLAYBACK;
1781                 chip->capture_streams = ATIHDMI_NUM_CAPTURE;
1782                 chip->playback_index_offset = ATIHDMI_PLAYBACK_INDEX;
1783                 chip->capture_index_offset = ATIHDMI_CAPTURE_INDEX;
1784                 break;
1785         default:
1786                 chip->playback_streams = ICH6_NUM_PLAYBACK;
1787                 chip->capture_streams = ICH6_NUM_CAPTURE;
1788                 chip->playback_index_offset = ICH6_PLAYBACK_INDEX;
1789                 chip->capture_index_offset = ICH6_CAPTURE_INDEX;
1790                 break;
1791         }
1792         chip->num_streams = chip->playback_streams + chip->capture_streams;
1793         chip->azx_dev = kcalloc(chip->num_streams, sizeof(*chip->azx_dev),
1794                                 GFP_KERNEL);
1795         if (!chip->azx_dev) {
1796                 snd_printk(KERN_ERR "cannot malloc azx_dev\n");
1797                 goto errout;
1798         }
1799
1800         /* allocate memory for the BDL for each stream */
1801         err = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV,
1802                                   snd_dma_pci_data(chip->pci),
1803                                   BDL_SIZE, &chip->bdl);
1804         if (err < 0) {
1805                 snd_printk(KERN_ERR SFX "cannot allocate BDL\n");
1806                 goto errout;
1807         }
1808         /* allocate memory for the position buffer */
1809         err = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV,
1810                                   snd_dma_pci_data(chip->pci),
1811                                   chip->num_streams * 8, &chip->posbuf);
1812         if (err < 0) {
1813                 snd_printk(KERN_ERR SFX "cannot allocate posbuf\n");
1814                 goto errout;
1815         }
1816         /* allocate CORB/RIRB */
1817         if (!chip->single_cmd) {
1818                 err = azx_alloc_cmd_io(chip);
1819                 if (err < 0)
1820                         goto errout;
1821         }
1822
1823         /* initialize streams */
1824         azx_init_stream(chip);
1825
1826         /* initialize chip */
1827         azx_init_pci(chip);
1828         azx_init_chip(chip);
1829
1830         /* codec detection */
1831         if (!chip->codec_mask) {
1832                 snd_printk(KERN_ERR SFX "no codecs found!\n");
1833                 err = -ENODEV;
1834                 goto errout;
1835         }
1836
1837         err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
1838         if (err <0) {
1839                 snd_printk(KERN_ERR SFX "Error creating device [card]!\n");
1840                 goto errout;
1841         }
1842
1843         strcpy(card->driver, "HDA-Intel");
1844         strcpy(card->shortname, driver_short_names[chip->driver_type]);
1845         sprintf(card->longname, "%s at 0x%lx irq %i",
1846                 card->shortname, chip->addr, chip->irq);
1847
1848         *rchip = chip;
1849         return 0;
1850
1851  errout:
1852         azx_free(chip);
1853         return err;
1854 }
1855
1856 static void power_down_all_codecs(struct azx *chip)
1857 {
1858 #ifdef CONFIG_SND_HDA_POWER_SAVE
1859         /* The codecs were powered up in snd_hda_codec_new().
1860          * Now all initialization done, so turn them down if possible
1861          */
1862         struct hda_codec *codec;
1863         list_for_each_entry(codec, &chip->bus->codec_list, list) {
1864                 snd_hda_power_down(codec);
1865         }
1866 #endif
1867 }
1868
1869 static int __devinit azx_probe(struct pci_dev *pci,
1870                                const struct pci_device_id *pci_id)
1871 {
1872         struct snd_card *card;
1873         struct azx *chip;
1874         int err;
1875
1876         card = snd_card_new(index, id, THIS_MODULE, 0);
1877         if (!card) {
1878                 snd_printk(KERN_ERR SFX "Error creating card!\n");
1879                 return -ENOMEM;
1880         }
1881
1882         err = azx_create(card, pci, pci_id->driver_data, &chip);
1883         if (err < 0) {
1884                 snd_card_free(card);
1885                 return err;
1886         }
1887         card->private_data = chip;
1888
1889         /* create codec instances */
1890         err = azx_codec_create(chip, model);
1891         if (err < 0) {
1892                 snd_card_free(card);
1893                 return err;
1894         }
1895
1896         /* create PCM streams */
1897         err = azx_pcm_create(chip);
1898         if (err < 0) {
1899                 snd_card_free(card);
1900                 return err;
1901         }
1902
1903         /* create mixer controls */
1904         err = azx_mixer_create(chip);
1905         if (err < 0) {
1906                 snd_card_free(card);
1907                 return err;
1908         }
1909
1910         snd_card_set_dev(card, &pci->dev);
1911
1912         err = snd_card_register(card);
1913         if (err < 0) {
1914                 snd_card_free(card);
1915                 return err;
1916         }
1917
1918         pci_set_drvdata(pci, card);
1919         chip->running = 1;
1920         power_down_all_codecs(chip);
1921
1922         return err;
1923 }
1924
1925 static void __devexit azx_remove(struct pci_dev *pci)
1926 {
1927         snd_card_free(pci_get_drvdata(pci));
1928         pci_set_drvdata(pci, NULL);
1929 }
1930
1931 /* PCI IDs */
1932 static struct pci_device_id azx_ids[] = {
1933         { 0x8086, 0x2668, PCI_ANY_ID, PCI_ANY_ID, 0, 0, AZX_DRIVER_ICH }, /* ICH6 */
1934         { 0x8086, 0x27d8, PCI_ANY_ID, PCI_ANY_ID, 0, 0, AZX_DRIVER_ICH }, /* ICH7 */
1935         { 0x8086, 0x269a, PCI_ANY_ID, PCI_ANY_ID, 0, 0, AZX_DRIVER_ICH }, /* ESB2 */
1936         { 0x8086, 0x284b, PCI_ANY_ID, PCI_ANY_ID, 0, 0, AZX_DRIVER_ICH }, /* ICH8 */
1937         { 0x8086, 0x293e, PCI_ANY_ID, PCI_ANY_ID, 0, 0, AZX_DRIVER_ICH }, /* ICH9 */
1938         { 0x8086, 0x293f, PCI_ANY_ID, PCI_ANY_ID, 0, 0, AZX_DRIVER_ICH }, /* ICH9 */
1939         { 0x1002, 0x437b, PCI_ANY_ID, PCI_ANY_ID, 0, 0, AZX_DRIVER_ATI }, /* ATI SB450 */
1940         { 0x1002, 0x4383, PCI_ANY_ID, PCI_ANY_ID, 0, 0, AZX_DRIVER_ATI }, /* ATI SB600 */
1941         { 0x1002, 0x793b, PCI_ANY_ID, PCI_ANY_ID, 0, 0, AZX_DRIVER_ATIHDMI }, /* ATI RS600 HDMI */
1942         { 0x1002, 0x7919, PCI_ANY_ID, PCI_ANY_ID, 0, 0, AZX_DRIVER_ATIHDMI }, /* ATI RS690 HDMI */
1943         { 0x1002, 0x960c, PCI_ANY_ID, PCI_ANY_ID, 0, 0, AZX_DRIVER_ATIHDMI }, /* ATI RS780 HDMI */
1944         { 0x1002, 0xaa00, PCI_ANY_ID, PCI_ANY_ID, 0, 0, AZX_DRIVER_ATIHDMI }, /* ATI R600 HDMI */
1945         { 0x1106, 0x3288, PCI_ANY_ID, PCI_ANY_ID, 0, 0, AZX_DRIVER_VIA }, /* VIA VT8251/VT8237A */
1946         { 0x1039, 0x7502, PCI_ANY_ID, PCI_ANY_ID, 0, 0, AZX_DRIVER_SIS }, /* SIS966 */
1947         { 0x10b9, 0x5461, PCI_ANY_ID, PCI_ANY_ID, 0, 0, AZX_DRIVER_ULI }, /* ULI M5461 */
1948         { 0x10de, 0x026c, PCI_ANY_ID, PCI_ANY_ID, 0, 0, AZX_DRIVER_NVIDIA }, /* NVIDIA MCP51 */
1949         { 0x10de, 0x0371, PCI_ANY_ID, PCI_ANY_ID, 0, 0, AZX_DRIVER_NVIDIA }, /* NVIDIA MCP55 */
1950         { 0x10de, 0x03e4, PCI_ANY_ID, PCI_ANY_ID, 0, 0, AZX_DRIVER_NVIDIA }, /* NVIDIA MCP61 */
1951         { 0x10de, 0x03f0, PCI_ANY_ID, PCI_ANY_ID, 0, 0, AZX_DRIVER_NVIDIA }, /* NVIDIA MCP61 */
1952         { 0x10de, 0x044a, PCI_ANY_ID, PCI_ANY_ID, 0, 0, AZX_DRIVER_NVIDIA }, /* NVIDIA MCP65 */
1953         { 0x10de, 0x044b, PCI_ANY_ID, PCI_ANY_ID, 0, 0, AZX_DRIVER_NVIDIA }, /* NVIDIA MCP65 */
1954         { 0x10de, 0x055c, PCI_ANY_ID, PCI_ANY_ID, 0, 0, AZX_DRIVER_NVIDIA }, /* NVIDIA MCP67 */
1955         { 0x10de, 0x055d, PCI_ANY_ID, PCI_ANY_ID, 0, 0, AZX_DRIVER_NVIDIA }, /* NVIDIA MCP67 */
1956         { 0x10de, 0x07fc, PCI_ANY_ID, PCI_ANY_ID, 0, 0, AZX_DRIVER_NVIDIA }, /* NVIDIA MCP73 */
1957         { 0x10de, 0x07fd, PCI_ANY_ID, PCI_ANY_ID, 0, 0, AZX_DRIVER_NVIDIA }, /* NVIDIA MCP73 */
1958         { 0x10de, 0x0774, PCI_ANY_ID, PCI_ANY_ID, 0, 0, AZX_DRIVER_NVIDIA }, /* NVIDIA MCP77 */
1959         { 0x10de, 0x0775, PCI_ANY_ID, PCI_ANY_ID, 0, 0, AZX_DRIVER_NVIDIA }, /* NVIDIA MCP77 */
1960         { 0x10de, 0x0776, PCI_ANY_ID, PCI_ANY_ID, 0, 0, AZX_DRIVER_NVIDIA }, /* NVIDIA MCP77 */
1961         { 0x10de, 0x0777, PCI_ANY_ID, PCI_ANY_ID, 0, 0, AZX_DRIVER_NVIDIA }, /* NVIDIA MCP77 */
1962         { 0, }
1963 };
1964 MODULE_DEVICE_TABLE(pci, azx_ids);
1965
1966 /* pci_driver definition */
1967 static struct pci_driver driver = {
1968         .name = "HDA Intel",
1969         .id_table = azx_ids,
1970         .probe = azx_probe,
1971         .remove = __devexit_p(azx_remove),
1972 #ifdef CONFIG_PM
1973         .suspend = azx_suspend,
1974         .resume = azx_resume,
1975 #endif
1976 };
1977
1978 static int __init alsa_card_azx_init(void)
1979 {
1980         return pci_register_driver(&driver);
1981 }
1982
1983 static void __exit alsa_card_azx_exit(void)
1984 {
1985         pci_unregister_driver(&driver);
1986 }
1987
1988 module_init(alsa_card_azx_init)
1989 module_exit(alsa_card_azx_exit)