[ALSA] Intel HD Audio: Use list_for_each_entry(_safe)
[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         /* clear STATESTS */
691         azx_writeb(chip, STATESTS, STATESTS_INT_MASK);
692
693         /* reset controller */
694         azx_writel(chip, GCTL, azx_readl(chip, GCTL) & ~ICH6_GCTL_RESET);
695
696         count = 50;
697         while (azx_readb(chip, GCTL) && --count)
698                 msleep(1);
699
700         /* delay for >= 100us for codec PLL to settle per spec
701          * Rev 0.9 section 5.5.1
702          */
703         msleep(1);
704
705         /* Bring controller out of reset */
706         azx_writeb(chip, GCTL, azx_readb(chip, GCTL) | ICH6_GCTL_RESET);
707
708         count = 50;
709         while (!azx_readb(chip, GCTL) && --count)
710                 msleep(1);
711
712         /* Brent Chartrand said to wait >= 540us for codecs to initialize */
713         msleep(1);
714
715         /* check to see if controller is ready */
716         if (!azx_readb(chip, GCTL)) {
717                 snd_printd("azx_reset: controller not ready!\n");
718                 return -EBUSY;
719         }
720
721         /* Accept unsolicited responses */
722         azx_writel(chip, GCTL, azx_readl(chip, GCTL) | ICH6_GCTL_UREN);
723
724         /* detect codecs */
725         if (!chip->codec_mask) {
726                 chip->codec_mask = azx_readw(chip, STATESTS);
727                 snd_printdd("codec_mask = 0x%x\n", chip->codec_mask);
728         }
729
730         return 0;
731 }
732
733
734 /*
735  * Lowlevel interface
736  */  
737
738 /* enable interrupts */
739 static void azx_int_enable(struct azx *chip)
740 {
741         /* enable controller CIE and GIE */
742         azx_writel(chip, INTCTL, azx_readl(chip, INTCTL) |
743                    ICH6_INT_CTRL_EN | ICH6_INT_GLOBAL_EN);
744 }
745
746 /* disable interrupts */
747 static void azx_int_disable(struct azx *chip)
748 {
749         int i;
750
751         /* disable interrupts in stream descriptor */
752         for (i = 0; i < chip->num_streams; i++) {
753                 struct azx_dev *azx_dev = &chip->azx_dev[i];
754                 azx_sd_writeb(azx_dev, SD_CTL,
755                               azx_sd_readb(azx_dev, SD_CTL) & ~SD_INT_MASK);
756         }
757
758         /* disable SIE for all streams */
759         azx_writeb(chip, INTCTL, 0);
760
761         /* disable controller CIE and GIE */
762         azx_writel(chip, INTCTL, azx_readl(chip, INTCTL) &
763                    ~(ICH6_INT_CTRL_EN | ICH6_INT_GLOBAL_EN));
764 }
765
766 /* clear interrupts */
767 static void azx_int_clear(struct azx *chip)
768 {
769         int i;
770
771         /* clear stream status */
772         for (i = 0; i < chip->num_streams; i++) {
773                 struct azx_dev *azx_dev = &chip->azx_dev[i];
774                 azx_sd_writeb(azx_dev, SD_STS, SD_INT_MASK);
775         }
776
777         /* clear STATESTS */
778         azx_writeb(chip, STATESTS, STATESTS_INT_MASK);
779
780         /* clear rirb status */
781         azx_writeb(chip, RIRBSTS, RIRB_INT_MASK);
782
783         /* clear int status */
784         azx_writel(chip, INTSTS, ICH6_INT_CTRL_EN | ICH6_INT_ALL_STREAM);
785 }
786
787 /* start a stream */
788 static void azx_stream_start(struct azx *chip, struct azx_dev *azx_dev)
789 {
790         /* enable SIE */
791         azx_writeb(chip, INTCTL,
792                    azx_readb(chip, INTCTL) | (1 << azx_dev->index));
793         /* set DMA start and interrupt mask */
794         azx_sd_writeb(azx_dev, SD_CTL, azx_sd_readb(azx_dev, SD_CTL) |
795                       SD_CTL_DMA_START | SD_INT_MASK);
796 }
797
798 /* stop a stream */
799 static void azx_stream_stop(struct azx *chip, struct azx_dev *azx_dev)
800 {
801         /* stop DMA */
802         azx_sd_writeb(azx_dev, SD_CTL, azx_sd_readb(azx_dev, SD_CTL) &
803                       ~(SD_CTL_DMA_START | SD_INT_MASK));
804         azx_sd_writeb(azx_dev, SD_STS, SD_INT_MASK); /* to be sure */
805         /* disable SIE */
806         azx_writeb(chip, INTCTL,
807                    azx_readb(chip, INTCTL) & ~(1 << azx_dev->index));
808 }
809
810
811 /*
812  * reset and start the controller registers
813  */
814 static void azx_init_chip(struct azx *chip)
815 {
816         if (chip->initialized)
817                 return;
818
819         /* reset controller */
820         azx_reset(chip);
821
822         /* initialize interrupts */
823         azx_int_clear(chip);
824         azx_int_enable(chip);
825
826         /* initialize the codec command I/O */
827         if (!chip->single_cmd)
828                 azx_init_cmd_io(chip);
829
830         /* program the position buffer */
831         azx_writel(chip, DPLBASE, (u32)chip->posbuf.addr);
832         azx_writel(chip, DPUBASE, upper_32bit(chip->posbuf.addr));
833
834         chip->initialized = 1;
835 }
836
837 /*
838  * initialize the PCI registers
839  */
840 /* update bits in a PCI register byte */
841 static void update_pci_byte(struct pci_dev *pci, unsigned int reg,
842                             unsigned char mask, unsigned char val)
843 {
844         unsigned char data;
845
846         pci_read_config_byte(pci, reg, &data);
847         data &= ~mask;
848         data |= (val & mask);
849         pci_write_config_byte(pci, reg, data);
850 }
851
852 static void azx_init_pci(struct azx *chip)
853 {
854         /* Clear bits 0-2 of PCI register TCSEL (at offset 0x44)
855          * TCSEL == Traffic Class Select Register, which sets PCI express QOS
856          * Ensuring these bits are 0 clears playback static on some HD Audio
857          * codecs
858          */
859         update_pci_byte(chip->pci, ICH6_PCIREG_TCSEL, 0x07, 0);
860
861         switch (chip->driver_type) {
862         case AZX_DRIVER_ATI:
863                 /* For ATI SB450 azalia HD audio, we need to enable snoop */
864                 update_pci_byte(chip->pci,
865                                 ATI_SB450_HDAUDIO_MISC_CNTR2_ADDR, 
866                                 0x07, ATI_SB450_HDAUDIO_ENABLE_SNOOP);
867                 break;
868         case AZX_DRIVER_NVIDIA:
869                 /* For NVIDIA HDA, enable snoop */
870                 update_pci_byte(chip->pci,
871                                 NVIDIA_HDA_TRANSREG_ADDR,
872                                 0x0f, NVIDIA_HDA_ENABLE_COHBITS);
873                 break;
874         }
875 }
876
877
878 /*
879  * interrupt handler
880  */
881 static irqreturn_t azx_interrupt(int irq, void *dev_id)
882 {
883         struct azx *chip = dev_id;
884         struct azx_dev *azx_dev;
885         u32 status;
886         int i;
887
888         spin_lock(&chip->reg_lock);
889
890         status = azx_readl(chip, INTSTS);
891         if (status == 0) {
892                 spin_unlock(&chip->reg_lock);
893                 return IRQ_NONE;
894         }
895         
896         for (i = 0; i < chip->num_streams; i++) {
897                 azx_dev = &chip->azx_dev[i];
898                 if (status & azx_dev->sd_int_sta_mask) {
899                         azx_sd_writeb(azx_dev, SD_STS, SD_INT_MASK);
900                         if (azx_dev->substream && azx_dev->running) {
901                                 azx_dev->period_intr++;
902                                 spin_unlock(&chip->reg_lock);
903                                 snd_pcm_period_elapsed(azx_dev->substream);
904                                 spin_lock(&chip->reg_lock);
905                         }
906                 }
907         }
908
909         /* clear rirb int */
910         status = azx_readb(chip, RIRBSTS);
911         if (status & RIRB_INT_MASK) {
912                 if (!chip->single_cmd && (status & RIRB_INT_RESPONSE))
913                         azx_update_rirb(chip);
914                 azx_writeb(chip, RIRBSTS, RIRB_INT_MASK);
915         }
916
917 #if 0
918         /* clear state status int */
919         if (azx_readb(chip, STATESTS) & 0x04)
920                 azx_writeb(chip, STATESTS, 0x04);
921 #endif
922         spin_unlock(&chip->reg_lock);
923         
924         return IRQ_HANDLED;
925 }
926
927
928 /*
929  * set up BDL entries
930  */
931 static void azx_setup_periods(struct azx_dev *azx_dev)
932 {
933         u32 *bdl = azx_dev->bdl;
934         dma_addr_t dma_addr = azx_dev->substream->runtime->dma_addr;
935         int idx;
936
937         /* reset BDL address */
938         azx_sd_writel(azx_dev, SD_BDLPL, 0);
939         azx_sd_writel(azx_dev, SD_BDLPU, 0);
940
941         /* program the initial BDL entries */
942         for (idx = 0; idx < azx_dev->frags; idx++) {
943                 unsigned int off = idx << 2; /* 4 dword step */
944                 dma_addr_t addr = dma_addr + idx * azx_dev->fragsize;
945                 /* program the address field of the BDL entry */
946                 bdl[off] = cpu_to_le32((u32)addr);
947                 bdl[off+1] = cpu_to_le32(upper_32bit(addr));
948
949                 /* program the size field of the BDL entry */
950                 bdl[off+2] = cpu_to_le32(azx_dev->fragsize);
951
952                 /* program the IOC to enable interrupt when buffer completes */
953                 bdl[off+3] = cpu_to_le32(0x01);
954         }
955 }
956
957 /*
958  * set up the SD for streaming
959  */
960 static int azx_setup_controller(struct azx *chip, struct azx_dev *azx_dev)
961 {
962         unsigned char val;
963         int timeout;
964
965         /* make sure the run bit is zero for SD */
966         azx_sd_writeb(azx_dev, SD_CTL, azx_sd_readb(azx_dev, SD_CTL) &
967                       ~SD_CTL_DMA_START);
968         /* reset stream */
969         azx_sd_writeb(azx_dev, SD_CTL, azx_sd_readb(azx_dev, SD_CTL) |
970                       SD_CTL_STREAM_RESET);
971         udelay(3);
972         timeout = 300;
973         while (!((val = azx_sd_readb(azx_dev, SD_CTL)) & SD_CTL_STREAM_RESET) &&
974                --timeout)
975                 ;
976         val &= ~SD_CTL_STREAM_RESET;
977         azx_sd_writeb(azx_dev, SD_CTL, val);
978         udelay(3);
979
980         timeout = 300;
981         /* waiting for hardware to report that the stream is out of reset */
982         while (((val = azx_sd_readb(azx_dev, SD_CTL)) & SD_CTL_STREAM_RESET) &&
983                --timeout)
984                 ;
985
986         /* program the stream_tag */
987         azx_sd_writel(azx_dev, SD_CTL,
988                       (azx_sd_readl(azx_dev, SD_CTL) & ~SD_CTL_STREAM_TAG_MASK)|
989                       (azx_dev->stream_tag << SD_CTL_STREAM_TAG_SHIFT));
990
991         /* program the length of samples in cyclic buffer */
992         azx_sd_writel(azx_dev, SD_CBL, azx_dev->bufsize);
993
994         /* program the stream format */
995         /* this value needs to be the same as the one programmed */
996         azx_sd_writew(azx_dev, SD_FORMAT, azx_dev->format_val);
997
998         /* program the stream LVI (last valid index) of the BDL */
999         azx_sd_writew(azx_dev, SD_LVI, azx_dev->frags - 1);
1000
1001         /* program the BDL address */
1002         /* lower BDL address */
1003         azx_sd_writel(azx_dev, SD_BDLPL, (u32)azx_dev->bdl_addr);
1004         /* upper BDL address */
1005         azx_sd_writel(azx_dev, SD_BDLPU, upper_32bit(azx_dev->bdl_addr));
1006
1007         /* enable the position buffer */
1008         if (!(azx_readl(chip, DPLBASE) & ICH6_DPLBASE_ENABLE))
1009                 azx_writel(chip, DPLBASE,
1010                            (u32)chip->posbuf.addr |ICH6_DPLBASE_ENABLE);
1011
1012         /* set the interrupt enable bits in the descriptor control register */
1013         azx_sd_writel(azx_dev, SD_CTL,
1014                       azx_sd_readl(azx_dev, SD_CTL) | SD_INT_MASK);
1015
1016         return 0;
1017 }
1018
1019
1020 /*
1021  * Codec initialization
1022  */
1023
1024 static unsigned int azx_max_codecs[] __devinitdata = {
1025         [AZX_DRIVER_ICH] = 3,
1026         [AZX_DRIVER_ATI] = 4,
1027         [AZX_DRIVER_ATIHDMI] = 4,
1028         [AZX_DRIVER_VIA] = 3,           /* FIXME: correct? */
1029         [AZX_DRIVER_SIS] = 3,           /* FIXME: correct? */
1030         [AZX_DRIVER_ULI] = 3,           /* FIXME: correct? */
1031         [AZX_DRIVER_NVIDIA] = 3,        /* FIXME: correct? */
1032 };
1033
1034 static int __devinit azx_codec_create(struct azx *chip, const char *model)
1035 {
1036         struct hda_bus_template bus_temp;
1037         int c, codecs, audio_codecs, err;
1038
1039         memset(&bus_temp, 0, sizeof(bus_temp));
1040         bus_temp.private_data = chip;
1041         bus_temp.modelname = model;
1042         bus_temp.pci = chip->pci;
1043         bus_temp.ops.command = azx_send_cmd;
1044         bus_temp.ops.get_response = azx_get_response;
1045 #ifdef CONFIG_SND_HDA_POWER_SAVE
1046         bus_temp.ops.pm_notify = azx_power_notify;
1047 #endif
1048
1049         err = snd_hda_bus_new(chip->card, &bus_temp, &chip->bus);
1050         if (err < 0)
1051                 return err;
1052
1053         codecs = audio_codecs = 0;
1054         for (c = 0; c < AZX_MAX_CODECS; c++) {
1055                 if ((chip->codec_mask & (1 << c)) & probe_mask) {
1056                         struct hda_codec *codec;
1057                         err = snd_hda_codec_new(chip->bus, c, &codec);
1058                         if (err < 0)
1059                                 continue;
1060                         codecs++;
1061                         if (codec->afg)
1062                                 audio_codecs++;
1063                 }
1064         }
1065         if (!audio_codecs) {
1066                 /* probe additional slots if no codec is found */
1067                 for (; c < azx_max_codecs[chip->driver_type]; c++) {
1068                         if ((chip->codec_mask & (1 << c)) & probe_mask) {
1069                                 err = snd_hda_codec_new(chip->bus, c, NULL);
1070                                 if (err < 0)
1071                                         continue;
1072                                 codecs++;
1073                         }
1074                 }
1075         }
1076         if (!codecs) {
1077                 snd_printk(KERN_ERR SFX "no codecs initialized\n");
1078                 return -ENXIO;
1079         }
1080
1081         return 0;
1082 }
1083
1084
1085 /*
1086  * PCM support
1087  */
1088
1089 /* assign a stream for the PCM */
1090 static inline struct azx_dev *azx_assign_device(struct azx *chip, int stream)
1091 {
1092         int dev, i, nums;
1093         if (stream == SNDRV_PCM_STREAM_PLAYBACK) {
1094                 dev = chip->playback_index_offset;
1095                 nums = chip->playback_streams;
1096         } else {
1097                 dev = chip->capture_index_offset;
1098                 nums = chip->capture_streams;
1099         }
1100         for (i = 0; i < nums; i++, dev++)
1101                 if (!chip->azx_dev[dev].opened) {
1102                         chip->azx_dev[dev].opened = 1;
1103                         return &chip->azx_dev[dev];
1104                 }
1105         return NULL;
1106 }
1107
1108 /* release the assigned stream */
1109 static inline void azx_release_device(struct azx_dev *azx_dev)
1110 {
1111         azx_dev->opened = 0;
1112 }
1113
1114 static struct snd_pcm_hardware azx_pcm_hw = {
1115         .info =                 (SNDRV_PCM_INFO_MMAP |
1116                                  SNDRV_PCM_INFO_INTERLEAVED |
1117                                  SNDRV_PCM_INFO_BLOCK_TRANSFER |
1118                                  SNDRV_PCM_INFO_MMAP_VALID |
1119                                  /* No full-resume yet implemented */
1120                                  /* SNDRV_PCM_INFO_RESUME |*/
1121                                  SNDRV_PCM_INFO_PAUSE),
1122         .formats =              SNDRV_PCM_FMTBIT_S16_LE,
1123         .rates =                SNDRV_PCM_RATE_48000,
1124         .rate_min =             48000,
1125         .rate_max =             48000,
1126         .channels_min =         2,
1127         .channels_max =         2,
1128         .buffer_bytes_max =     AZX_MAX_BUF_SIZE,
1129         .period_bytes_min =     128,
1130         .period_bytes_max =     AZX_MAX_BUF_SIZE / 2,
1131         .periods_min =          2,
1132         .periods_max =          AZX_MAX_FRAG,
1133         .fifo_size =            0,
1134 };
1135
1136 struct azx_pcm {
1137         struct azx *chip;
1138         struct hda_codec *codec;
1139         struct hda_pcm_stream *hinfo[2];
1140 };
1141
1142 static int azx_pcm_open(struct snd_pcm_substream *substream)
1143 {
1144         struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
1145         struct hda_pcm_stream *hinfo = apcm->hinfo[substream->stream];
1146         struct azx *chip = apcm->chip;
1147         struct azx_dev *azx_dev;
1148         struct snd_pcm_runtime *runtime = substream->runtime;
1149         unsigned long flags;
1150         int err;
1151
1152         mutex_lock(&chip->open_mutex);
1153         azx_dev = azx_assign_device(chip, substream->stream);
1154         if (azx_dev == NULL) {
1155                 mutex_unlock(&chip->open_mutex);
1156                 return -EBUSY;
1157         }
1158         runtime->hw = azx_pcm_hw;
1159         runtime->hw.channels_min = hinfo->channels_min;
1160         runtime->hw.channels_max = hinfo->channels_max;
1161         runtime->hw.formats = hinfo->formats;
1162         runtime->hw.rates = hinfo->rates;
1163         snd_pcm_limit_hw_rates(runtime);
1164         snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS);
1165         snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_BUFFER_BYTES,
1166                                    128);
1167         snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES,
1168                                    128);
1169         snd_hda_power_up(apcm->codec);
1170         err = hinfo->ops.open(hinfo, apcm->codec, substream);
1171         if (err < 0) {
1172                 azx_release_device(azx_dev);
1173                 snd_hda_power_down(apcm->codec);
1174                 mutex_unlock(&chip->open_mutex);
1175                 return err;
1176         }
1177         spin_lock_irqsave(&chip->reg_lock, flags);
1178         azx_dev->substream = substream;
1179         azx_dev->running = 0;
1180         spin_unlock_irqrestore(&chip->reg_lock, flags);
1181
1182         runtime->private_data = azx_dev;
1183         mutex_unlock(&chip->open_mutex);
1184         return 0;
1185 }
1186
1187 static int azx_pcm_close(struct snd_pcm_substream *substream)
1188 {
1189         struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
1190         struct hda_pcm_stream *hinfo = apcm->hinfo[substream->stream];
1191         struct azx *chip = apcm->chip;
1192         struct azx_dev *azx_dev = get_azx_dev(substream);
1193         unsigned long flags;
1194
1195         mutex_lock(&chip->open_mutex);
1196         spin_lock_irqsave(&chip->reg_lock, flags);
1197         azx_dev->substream = NULL;
1198         azx_dev->running = 0;
1199         spin_unlock_irqrestore(&chip->reg_lock, flags);
1200         azx_release_device(azx_dev);
1201         hinfo->ops.close(hinfo, apcm->codec, substream);
1202         snd_hda_power_down(apcm->codec);
1203         mutex_unlock(&chip->open_mutex);
1204         return 0;
1205 }
1206
1207 static int azx_pcm_hw_params(struct snd_pcm_substream *substream,
1208                              struct snd_pcm_hw_params *hw_params)
1209 {
1210         return snd_pcm_lib_malloc_pages(substream,
1211                                         params_buffer_bytes(hw_params));
1212 }
1213
1214 static int azx_pcm_hw_free(struct snd_pcm_substream *substream)
1215 {
1216         struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
1217         struct azx_dev *azx_dev = get_azx_dev(substream);
1218         struct hda_pcm_stream *hinfo = apcm->hinfo[substream->stream];
1219
1220         /* reset BDL address */
1221         azx_sd_writel(azx_dev, SD_BDLPL, 0);
1222         azx_sd_writel(azx_dev, SD_BDLPU, 0);
1223         azx_sd_writel(azx_dev, SD_CTL, 0);
1224
1225         hinfo->ops.cleanup(hinfo, apcm->codec, substream);
1226
1227         return snd_pcm_lib_free_pages(substream);
1228 }
1229
1230 static int azx_pcm_prepare(struct snd_pcm_substream *substream)
1231 {
1232         struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
1233         struct azx *chip = apcm->chip;
1234         struct azx_dev *azx_dev = get_azx_dev(substream);
1235         struct hda_pcm_stream *hinfo = apcm->hinfo[substream->stream];
1236         struct snd_pcm_runtime *runtime = substream->runtime;
1237
1238         azx_dev->bufsize = snd_pcm_lib_buffer_bytes(substream);
1239         azx_dev->fragsize = snd_pcm_lib_period_bytes(substream);
1240         azx_dev->frags = azx_dev->bufsize / azx_dev->fragsize;
1241         azx_dev->format_val = snd_hda_calc_stream_format(runtime->rate,
1242                                                          runtime->channels,
1243                                                          runtime->format,
1244                                                          hinfo->maxbps);
1245         if (!azx_dev->format_val) {
1246                 snd_printk(KERN_ERR SFX
1247                            "invalid format_val, rate=%d, ch=%d, format=%d\n",
1248                            runtime->rate, runtime->channels, runtime->format);
1249                 return -EINVAL;
1250         }
1251
1252         snd_printdd("azx_pcm_prepare: bufsize=0x%x, fragsize=0x%x, "
1253                     "format=0x%x\n",
1254                     azx_dev->bufsize, azx_dev->fragsize, azx_dev->format_val);
1255         azx_setup_periods(azx_dev);
1256         azx_setup_controller(chip, azx_dev);
1257         if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
1258                 azx_dev->fifo_size = azx_sd_readw(azx_dev, SD_FIFOSIZE) + 1;
1259         else
1260                 azx_dev->fifo_size = 0;
1261
1262         return hinfo->ops.prepare(hinfo, apcm->codec, azx_dev->stream_tag,
1263                                   azx_dev->format_val, substream);
1264 }
1265
1266 static int azx_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
1267 {
1268         struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
1269         struct azx_dev *azx_dev = get_azx_dev(substream);
1270         struct azx *chip = apcm->chip;
1271         int err = 0;
1272
1273         spin_lock(&chip->reg_lock);
1274         switch (cmd) {
1275         case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
1276         case SNDRV_PCM_TRIGGER_RESUME:
1277         case SNDRV_PCM_TRIGGER_START:
1278                 azx_stream_start(chip, azx_dev);
1279                 azx_dev->running = 1;
1280                 break;
1281         case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
1282         case SNDRV_PCM_TRIGGER_SUSPEND:
1283         case SNDRV_PCM_TRIGGER_STOP:
1284                 azx_stream_stop(chip, azx_dev);
1285                 azx_dev->running = 0;
1286                 break;
1287         default:
1288                 err = -EINVAL;
1289         }
1290         spin_unlock(&chip->reg_lock);
1291         if (cmd == SNDRV_PCM_TRIGGER_PAUSE_PUSH ||
1292             cmd == SNDRV_PCM_TRIGGER_SUSPEND ||
1293             cmd == SNDRV_PCM_TRIGGER_STOP) {
1294                 int timeout = 5000;
1295                 while ((azx_sd_readb(azx_dev, SD_CTL) & SD_CTL_DMA_START) &&
1296                        --timeout)
1297                         ;
1298         }
1299         return err;
1300 }
1301
1302 static snd_pcm_uframes_t azx_pcm_pointer(struct snd_pcm_substream *substream)
1303 {
1304         struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
1305         struct azx *chip = apcm->chip;
1306         struct azx_dev *azx_dev = get_azx_dev(substream);
1307         unsigned int pos;
1308
1309         if (chip->position_fix == POS_FIX_POSBUF ||
1310             chip->position_fix == POS_FIX_AUTO) {
1311                 /* use the position buffer */
1312                 pos = le32_to_cpu(*azx_dev->posbuf);
1313                 if (chip->position_fix == POS_FIX_AUTO &&
1314                     azx_dev->period_intr == 1 && !pos) {
1315                         printk(KERN_WARNING
1316                                "hda-intel: Invalid position buffer, "
1317                                "using LPIB read method instead.\n");
1318                         chip->position_fix = POS_FIX_NONE;
1319                         goto read_lpib;
1320                 }
1321         } else {
1322         read_lpib:
1323                 /* read LPIB */
1324                 pos = azx_sd_readl(azx_dev, SD_LPIB);
1325                 if (chip->position_fix == POS_FIX_FIFO)
1326                         pos += azx_dev->fifo_size;
1327         }
1328         if (pos >= azx_dev->bufsize)
1329                 pos = 0;
1330         return bytes_to_frames(substream->runtime, pos);
1331 }
1332
1333 static struct snd_pcm_ops azx_pcm_ops = {
1334         .open = azx_pcm_open,
1335         .close = azx_pcm_close,
1336         .ioctl = snd_pcm_lib_ioctl,
1337         .hw_params = azx_pcm_hw_params,
1338         .hw_free = azx_pcm_hw_free,
1339         .prepare = azx_pcm_prepare,
1340         .trigger = azx_pcm_trigger,
1341         .pointer = azx_pcm_pointer,
1342 };
1343
1344 static void azx_pcm_free(struct snd_pcm *pcm)
1345 {
1346         kfree(pcm->private_data);
1347 }
1348
1349 static int __devinit create_codec_pcm(struct azx *chip, struct hda_codec *codec,
1350                                       struct hda_pcm *cpcm, int pcm_dev)
1351 {
1352         int err;
1353         struct snd_pcm *pcm;
1354         struct azx_pcm *apcm;
1355
1356         /* if no substreams are defined for both playback and capture,
1357          * it's just a placeholder.  ignore it.
1358          */
1359         if (!cpcm->stream[0].substreams && !cpcm->stream[1].substreams)
1360                 return 0;
1361
1362         snd_assert(cpcm->name, return -EINVAL);
1363
1364         err = snd_pcm_new(chip->card, cpcm->name, pcm_dev,
1365                           cpcm->stream[0].substreams,
1366                           cpcm->stream[1].substreams,
1367                           &pcm);
1368         if (err < 0)
1369                 return err;
1370         strcpy(pcm->name, cpcm->name);
1371         apcm = kmalloc(sizeof(*apcm), GFP_KERNEL);
1372         if (apcm == NULL)
1373                 return -ENOMEM;
1374         apcm->chip = chip;
1375         apcm->codec = codec;
1376         apcm->hinfo[0] = &cpcm->stream[0];
1377         apcm->hinfo[1] = &cpcm->stream[1];
1378         pcm->private_data = apcm;
1379         pcm->private_free = azx_pcm_free;
1380         if (cpcm->stream[0].substreams)
1381                 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &azx_pcm_ops);
1382         if (cpcm->stream[1].substreams)
1383                 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &azx_pcm_ops);
1384         snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
1385                                               snd_dma_pci_data(chip->pci),
1386                                               1024 * 64, 1024 * 1024);
1387         chip->pcm[pcm_dev] = pcm;
1388         if (chip->pcm_devs < pcm_dev + 1)
1389                 chip->pcm_devs = pcm_dev + 1;
1390
1391         return 0;
1392 }
1393
1394 static int __devinit azx_pcm_create(struct azx *chip)
1395 {
1396         struct hda_codec *codec;
1397         int c, err;
1398         int pcm_dev;
1399
1400         err = snd_hda_build_pcms(chip->bus);
1401         if (err < 0)
1402                 return err;
1403
1404         /* create audio PCMs */
1405         pcm_dev = 0;
1406         list_for_each_entry(codec, &chip->bus->codec_list, list) {
1407                 for (c = 0; c < codec->num_pcms; c++) {
1408                         if (codec->pcm_info[c].is_modem)
1409                                 continue; /* create later */
1410                         if (pcm_dev >= AZX_MAX_AUDIO_PCMS) {
1411                                 snd_printk(KERN_ERR SFX
1412                                            "Too many audio PCMs\n");
1413                                 return -EINVAL;
1414                         }
1415                         err = create_codec_pcm(chip, codec,
1416                                                &codec->pcm_info[c], pcm_dev);
1417                         if (err < 0)
1418                                 return err;
1419                         pcm_dev++;
1420                 }
1421         }
1422
1423         /* create modem PCMs */
1424         pcm_dev = AZX_MAX_AUDIO_PCMS;
1425         list_for_each_entry(codec, &chip->bus->codec_list, 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)