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at91: at91sam9g45 family: identify several chip versions
[linux-2.6/next.git] / sound / pci / hda / hda_intel.c
blobe340792f6cb325eabfca7c2e350aa987a9c35907
1 /*
2 *
3 * hda_intel.c - Implementation of primary alsa driver code base
4 * for Intel HD Audio.
5 *
6 * Copyright(c) 2004 Intel Corporation. All rights reserved.
7 *
8 * Copyright (c) 2004 Takashi Iwai <tiwai@suse.de>
9 * PeiSen Hou <pshou@realtek.com.tw>
10 *
11 * This program is free software; you can redistribute it and/or modify it
12 * under the terms of the GNU General Public License as published by the Free
13 * Software Foundation; either version 2 of the License, or (at your option)
14 * any later version.
15 *
16 * This program is distributed in the hope that it will be useful, but WITHOUT
17 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
18 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
19 * more details.
20 *
21 * You should have received a copy of the GNU General Public License along with
22 * this program; if not, write to the Free Software Foundation, Inc., 59
23 * Temple Place - Suite 330, Boston, MA 02111-1307, USA.
24 *
25 * CONTACTS:
26 *
27 * Matt Jared matt.jared@intel.com
28 * Andy Kopp andy.kopp@intel.com
29 * Dan Kogan dan.d.kogan@intel.com
30 *
31 * CHANGES:
32 *
33 * 2004.12.01 Major rewrite by tiwai, merged the work of pshou
34 *
35 */
36
37 #include <asm/io.h>
38 #include <linux/delay.h>
39 #include <linux/interrupt.h>
40 #include <linux/kernel.h>
41 #include <linux/module.h>
42 #include <linux/dma-mapping.h>
43 #include <linux/moduleparam.h>
44 #include <linux/init.h>
45 #include <linux/slab.h>
46 #include <linux/pci.h>
47 #include <linux/mutex.h>
48 #include <linux/reboot.h>
49 #include <sound/core.h>
50 #include <sound/initval.h>
51 #include "hda_codec.h"
52
53
54 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
55 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
56 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
57 static char *model[SNDRV_CARDS];
58 static int position_fix[SNDRV_CARDS];
59 static int bdl_pos_adj[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS-1)] = -1};
60 static int probe_mask[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS-1)] = -1};
61 static int probe_only[SNDRV_CARDS];
62 static int single_cmd;
63 static int enable_msi;
64 #ifdef CONFIG_SND_HDA_PATCH_LOADER
65 static char *patch[SNDRV_CARDS];
66 #endif
67
68 module_param_array(index, int, NULL, 0444);
69 MODULE_PARM_DESC(index, "Index value for Intel HD audio interface.");
70 module_param_array(id, charp, NULL, 0444);
71 MODULE_PARM_DESC(id, "ID string for Intel HD audio interface.");
72 module_param_array(enable, bool, NULL, 0444);
73 MODULE_PARM_DESC(enable, "Enable Intel HD audio interface.");
74 module_param_array(model, charp, NULL, 0444);
75 MODULE_PARM_DESC(model, "Use the given board model.");
76 module_param_array(position_fix, int, NULL, 0444);
77 MODULE_PARM_DESC(position_fix, "Fix DMA pointer "
78 "(0 = auto, 1 = none, 2 = POSBUF).");
79 module_param_array(bdl_pos_adj, int, NULL, 0644);
80 MODULE_PARM_DESC(bdl_pos_adj, "BDL position adjustment offset.");
81 module_param_array(probe_mask, int, NULL, 0444);
82 MODULE_PARM_DESC(probe_mask, "Bitmask to probe codecs (default = -1).");
83 module_param_array(probe_only, bool, NULL, 0444);
84 MODULE_PARM_DESC(probe_only, "Only probing and no codec initialization.");
85 module_param(single_cmd, bool, 0444);
86 MODULE_PARM_DESC(single_cmd, "Use single command to communicate with codecs "
87 "(for debugging only).");
88 module_param(enable_msi, int, 0444);
89 MODULE_PARM_DESC(enable_msi, "Enable Message Signaled Interrupt (MSI)");
90 #ifdef CONFIG_SND_HDA_PATCH_LOADER
91 module_param_array(patch, charp, NULL, 0444);
92 MODULE_PARM_DESC(patch, "Patch file for Intel HD audio interface.");
93 #endif
94
95 #ifdef CONFIG_SND_HDA_POWER_SAVE
96 static int power_save = CONFIG_SND_HDA_POWER_SAVE_DEFAULT;
97 module_param(power_save, int, 0644);
98 MODULE_PARM_DESC(power_save, "Automatic power-saving timeout "
99 "(in second, 0 = disable).");
100
101 /* reset the HD-audio controller in power save mode.
102 * this may give more power-saving, but will take longer time to
103 * wake up.
104 */
105 static int power_save_controller = 1;
106 module_param(power_save_controller, bool, 0644);
107 MODULE_PARM_DESC(power_save_controller, "Reset controller in power save mode.");
108 #endif
109
110 MODULE_LICENSE("GPL");
111 MODULE_SUPPORTED_DEVICE("{{Intel, ICH6},"
112 "{Intel, ICH6M},"
113 "{Intel, ICH7},"
114 "{Intel, ESB2},"
115 "{Intel, ICH8},"
116 "{Intel, ICH9},"
117 "{Intel, ICH10},"
118 "{Intel, PCH},"
119 "{Intel, SCH},"
120 "{ATI, SB450},"
121 "{ATI, SB600},"
122 "{ATI, RS600},"
123 "{ATI, RS690},"
124 "{ATI, RS780},"
125 "{ATI, R600},"
126 "{ATI, RV630},"
127 "{ATI, RV610},"
128 "{ATI, RV670},"
129 "{ATI, RV635},"
130 "{ATI, RV620},"
131 "{ATI, RV770},"
132 "{VIA, VT8251},"
133 "{VIA, VT8237A},"
134 "{SiS, SIS966},"
135 "{ULI, M5461}}");
136 MODULE_DESCRIPTION("Intel HDA driver");
137
138 #ifdef CONFIG_SND_VERBOSE_PRINTK
139 #define SFX /* nop */
140 #else
141 #define SFX "hda-intel: "
142 #endif
143
144 /*
145 * registers
146 */
147 #define ICH6_REG_GCAP 0x00
148 #define ICH6_GCAP_64OK (1 << 0) /* 64bit address support */
149 #define ICH6_GCAP_NSDO (3 << 1) /* # of serial data out signals */
150 #define ICH6_GCAP_BSS (31 << 3) /* # of bidirectional streams */
151 #define ICH6_GCAP_ISS (15 << 8) /* # of input streams */
152 #define ICH6_GCAP_OSS (15 << 12) /* # of output streams */
153 #define ICH6_REG_VMIN 0x02
154 #define ICH6_REG_VMAJ 0x03
155 #define ICH6_REG_OUTPAY 0x04
156 #define ICH6_REG_INPAY 0x06
157 #define ICH6_REG_GCTL 0x08
158 #define ICH6_GCTL_RESET (1 << 0) /* controller reset */
159 #define ICH6_GCTL_FCNTRL (1 << 1) /* flush control */
160 #define ICH6_GCTL_UNSOL (1 << 8) /* accept unsol. response enable */
161 #define ICH6_REG_WAKEEN 0x0c
162 #define ICH6_REG_STATESTS 0x0e
163 #define ICH6_REG_GSTS 0x10
164 #define ICH6_GSTS_FSTS (1 << 1) /* flush status */
165 #define ICH6_REG_INTCTL 0x20
166 #define ICH6_REG_INTSTS 0x24
167 #define ICH6_REG_WALCLK 0x30
168 #define ICH6_REG_SYNC 0x34
169 #define ICH6_REG_CORBLBASE 0x40
170 #define ICH6_REG_CORBUBASE 0x44
171 #define ICH6_REG_CORBWP 0x48
172 #define ICH6_REG_CORBRP 0x4a
173 #define ICH6_CORBRP_RST (1 << 15) /* read pointer reset */
174 #define ICH6_REG_CORBCTL 0x4c
175 #define ICH6_CORBCTL_RUN (1 << 1) /* enable DMA */
176 #define ICH6_CORBCTL_CMEIE (1 << 0) /* enable memory error irq */
177 #define ICH6_REG_CORBSTS 0x4d
178 #define ICH6_CORBSTS_CMEI (1 << 0) /* memory error indication */
179 #define ICH6_REG_CORBSIZE 0x4e
180
181 #define ICH6_REG_RIRBLBASE 0x50
182 #define ICH6_REG_RIRBUBASE 0x54
183 #define ICH6_REG_RIRBWP 0x58
184 #define ICH6_RIRBWP_RST (1 << 15) /* write pointer reset */
185 #define ICH6_REG_RINTCNT 0x5a
186 #define ICH6_REG_RIRBCTL 0x5c
187 #define ICH6_RBCTL_IRQ_EN (1 << 0) /* enable IRQ */
188 #define ICH6_RBCTL_DMA_EN (1 << 1) /* enable DMA */
189 #define ICH6_RBCTL_OVERRUN_EN (1 << 2) /* enable overrun irq */
190 #define ICH6_REG_RIRBSTS 0x5d
191 #define ICH6_RBSTS_IRQ (1 << 0) /* response irq */
192 #define ICH6_RBSTS_OVERRUN (1 << 2) /* overrun irq */
193 #define ICH6_REG_RIRBSIZE 0x5e
194
195 #define ICH6_REG_IC 0x60
196 #define ICH6_REG_IR 0x64
197 #define ICH6_REG_IRS 0x68
198 #define ICH6_IRS_VALID (1<<1)
199 #define ICH6_IRS_BUSY (1<<0)
200
201 #define ICH6_REG_DPLBASE 0x70
202 #define ICH6_REG_DPUBASE 0x74
203 #define ICH6_DPLBASE_ENABLE 0x1 /* Enable position buffer */
204
205 /* SD offset: SDI0=0x80, SDI1=0xa0, ... SDO3=0x160 */
206 enum { SDI0, SDI1, SDI2, SDI3, SDO0, SDO1, SDO2, SDO3 };
207
208 /* stream register offsets from stream base */
209 #define ICH6_REG_SD_CTL 0x00
210 #define ICH6_REG_SD_STS 0x03
211 #define ICH6_REG_SD_LPIB 0x04
212 #define ICH6_REG_SD_CBL 0x08
213 #define ICH6_REG_SD_LVI 0x0c
214 #define ICH6_REG_SD_FIFOW 0x0e
215 #define ICH6_REG_SD_FIFOSIZE 0x10
216 #define ICH6_REG_SD_FORMAT 0x12
217 #define ICH6_REG_SD_BDLPL 0x18
218 #define ICH6_REG_SD_BDLPU 0x1c
219
220 /* PCI space */
221 #define ICH6_PCIREG_TCSEL 0x44
222
223 /*
224 * other constants
225 */
226
227 /* max number of SDs */
228 /* ICH, ATI and VIA have 4 playback and 4 capture */
229 #define ICH6_NUM_CAPTURE 4
230 #define ICH6_NUM_PLAYBACK 4
231
232 /* ULI has 6 playback and 5 capture */
233 #define ULI_NUM_CAPTURE 5
234 #define ULI_NUM_PLAYBACK 6
235
236 /* ATI HDMI has 1 playback and 0 capture */
237 #define ATIHDMI_NUM_CAPTURE 0
238 #define ATIHDMI_NUM_PLAYBACK 1
239
240 /* TERA has 4 playback and 3 capture */
241 #define TERA_NUM_CAPTURE 3
242 #define TERA_NUM_PLAYBACK 4
243
244 /* this number is statically defined for simplicity */
245 #define MAX_AZX_DEV 16
246
247 /* max number of fragments - we may use more if allocating more pages for BDL */
248 #define BDL_SIZE 4096
249 #define AZX_MAX_BDL_ENTRIES (BDL_SIZE / 16)
250 #define AZX_MAX_FRAG 32
251 /* max buffer size - no h/w limit, you can increase as you like */
252 #define AZX_MAX_BUF_SIZE (1024*1024*1024)
253 /* max number of PCM devics per card */
254 #define AZX_MAX_PCMS 8
255
256 /* RIRB int mask: overrun[2], response[0] */
257 #define RIRB_INT_RESPONSE 0x01
258 #define RIRB_INT_OVERRUN 0x04
259 #define RIRB_INT_MASK 0x05
260
261 /* STATESTS int mask: S3,SD2,SD1,SD0 */
262 #define AZX_MAX_CODECS 4
263 #define STATESTS_INT_MASK ((1 << AZX_MAX_CODECS) - 1)
264
265 /* SD_CTL bits */
266 #define SD_CTL_STREAM_RESET 0x01 /* stream reset bit */
267 #define SD_CTL_DMA_START 0x02 /* stream DMA start bit */
268 #define SD_CTL_STRIPE (3 << 16) /* stripe control */
269 #define SD_CTL_TRAFFIC_PRIO (1 << 18) /* traffic priority */
270 #define SD_CTL_DIR (1 << 19) /* bi-directional stream */
271 #define SD_CTL_STREAM_TAG_MASK (0xf << 20)
272 #define SD_CTL_STREAM_TAG_SHIFT 20
273
274 /* SD_CTL and SD_STS */
275 #define SD_INT_DESC_ERR 0x10 /* descriptor error interrupt */
276 #define SD_INT_FIFO_ERR 0x08 /* FIFO error interrupt */
277 #define SD_INT_COMPLETE 0x04 /* completion interrupt */
278 #define SD_INT_MASK (SD_INT_DESC_ERR|SD_INT_FIFO_ERR|\
279 SD_INT_COMPLETE)
280
281 /* SD_STS */
282 #define SD_STS_FIFO_READY 0x20 /* FIFO ready */
283
284 /* INTCTL and INTSTS */
285 #define ICH6_INT_ALL_STREAM 0xff /* all stream interrupts */
286 #define ICH6_INT_CTRL_EN 0x40000000 /* controller interrupt enable bit */
287 #define ICH6_INT_GLOBAL_EN 0x80000000 /* global interrupt enable bit */
288
289 /* below are so far hardcoded - should read registers in future */
290 #define ICH6_MAX_CORB_ENTRIES 256
291 #define ICH6_MAX_RIRB_ENTRIES 256
292
293 /* position fix mode */
294 enum {
295 POS_FIX_AUTO,
296 POS_FIX_LPIB,
297 POS_FIX_POSBUF,
298 };
299
300 /* Defines for ATI HD Audio support in SB450 south bridge */
301 #define ATI_SB450_HDAUDIO_MISC_CNTR2_ADDR 0x42
302 #define ATI_SB450_HDAUDIO_ENABLE_SNOOP 0x02
303
304 /* Defines for Nvidia HDA support */
305 #define NVIDIA_HDA_TRANSREG_ADDR 0x4e
306 #define NVIDIA_HDA_ENABLE_COHBITS 0x0f
307 #define NVIDIA_HDA_ISTRM_COH 0x4d
308 #define NVIDIA_HDA_OSTRM_COH 0x4c
309 #define NVIDIA_HDA_ENABLE_COHBIT 0x01
310
311 /* Defines for Intel SCH HDA snoop control */
312 #define INTEL_SCH_HDA_DEVC 0x78
313 #define INTEL_SCH_HDA_DEVC_NOSNOOP (0x1<<11)
314
315 /* Define IN stream 0 FIFO size offset in VIA controller */
316 #define VIA_IN_STREAM0_FIFO_SIZE_OFFSET 0x90
317 /* Define VIA HD Audio Device ID*/
318 #define VIA_HDAC_DEVICE_ID 0x3288
319
320 /* HD Audio class code */
321 #define PCI_CLASS_MULTIMEDIA_HD_AUDIO 0x0403
322
323 /*
324 */
325
326 struct azx_dev {
327 struct snd_dma_buffer bdl; /* BDL buffer */
328 u32 *posbuf; /* position buffer pointer */
329
330 unsigned int bufsize; /* size of the play buffer in bytes */
331 unsigned int period_bytes; /* size of the period in bytes */
332 unsigned int frags; /* number for period in the play buffer */
333 unsigned int fifo_size; /* FIFO size */
334 unsigned long start_jiffies; /* start + minimum jiffies */
335 unsigned long min_jiffies; /* minimum jiffies before position is valid */
336
337 void __iomem *sd_addr; /* stream descriptor pointer */
338
339 u32 sd_int_sta_mask; /* stream int status mask */
340
341 /* pcm support */
342 struct snd_pcm_substream *substream; /* assigned substream,
343 * set in PCM open
344 */
345 unsigned int format_val; /* format value to be set in the
346 * controller and the codec
347 */
348 unsigned char stream_tag; /* assigned stream */
349 unsigned char index; /* stream index */
350
351 unsigned int opened :1;
352 unsigned int running :1;
353 unsigned int irq_pending :1;
354 unsigned int start_flag: 1; /* stream full start flag */
355 /*
356 * For VIA:
357 * A flag to ensure DMA position is 0
358 * when link position is not greater than FIFO size
359 */
360 unsigned int insufficient :1;
361 };
362
363 /* CORB/RIRB */
364 struct azx_rb {
365 u32 *buf; /* CORB/RIRB buffer
366 * Each CORB entry is 4byte, RIRB is 8byte
367 */
368 dma_addr_t addr; /* physical address of CORB/RIRB buffer */
369 /* for RIRB */
370 unsigned short rp, wp; /* read/write pointers */
371 int cmds[AZX_MAX_CODECS]; /* number of pending requests */
372 u32 res[AZX_MAX_CODECS]; /* last read value */
373 };
374
375 struct azx {
376 struct snd_card *card;
377 struct pci_dev *pci;
378 int dev_index;
379
380 /* chip type specific */
381 int driver_type;
382 int playback_streams;
383 int playback_index_offset;
384 int capture_streams;
385 int capture_index_offset;
386 int num_streams;
387
388 /* pci resources */
389 unsigned long addr;
390 void __iomem *remap_addr;
391 int irq;
392
393 /* locks */
394 spinlock_t reg_lock;
395 struct mutex open_mutex;
396
397 /* streams (x num_streams) */
398 struct azx_dev *azx_dev;
399
400 /* PCM */
401 struct snd_pcm *pcm[AZX_MAX_PCMS];
402
403 /* HD codec */
404 unsigned short codec_mask;
405 int codec_probe_mask; /* copied from probe_mask option */
406 struct hda_bus *bus;
407
408 /* CORB/RIRB */
409 struct azx_rb corb;
410 struct azx_rb rirb;
411
412 /* CORB/RIRB and position buffers */
413 struct snd_dma_buffer rb;
414 struct snd_dma_buffer posbuf;
415
416 /* flags */
417 int position_fix;
418 unsigned int running :1;
419 unsigned int initialized :1;
420 unsigned int single_cmd :1;
421 unsigned int polling_mode :1;
422 unsigned int msi :1;
423 unsigned int irq_pending_warned :1;
424 unsigned int via_dmapos_patch :1; /* enable DMA-position fix for VIA */
425 unsigned int probing :1; /* codec probing phase */
426
427 /* for debugging */
428 unsigned int last_cmd[AZX_MAX_CODECS];
429
430 /* for pending irqs */
431 struct work_struct irq_pending_work;
432
433 /* reboot notifier (for mysterious hangup problem at power-down) */
434 struct notifier_block reboot_notifier;
435 };
436
437 /* driver types */
438 enum {
439 AZX_DRIVER_ICH,
440 AZX_DRIVER_SCH,
441 AZX_DRIVER_ATI,
442 AZX_DRIVER_ATIHDMI,
443 AZX_DRIVER_VIA,
444 AZX_DRIVER_SIS,
445 AZX_DRIVER_ULI,
446 AZX_DRIVER_NVIDIA,
447 AZX_DRIVER_TERA,
448 AZX_DRIVER_GENERIC,
449 AZX_NUM_DRIVERS, /* keep this as last entry */
450 };
451
452 static char *driver_short_names[] __devinitdata = {
453 [AZX_DRIVER_ICH] = "HDA Intel",
454 [AZX_DRIVER_SCH] = "HDA Intel MID",
455 [AZX_DRIVER_ATI] = "HDA ATI SB",
456 [AZX_DRIVER_ATIHDMI] = "HDA ATI HDMI",
457 [AZX_DRIVER_VIA] = "HDA VIA VT82xx",
458 [AZX_DRIVER_SIS] = "HDA SIS966",
459 [AZX_DRIVER_ULI] = "HDA ULI M5461",
460 [AZX_DRIVER_NVIDIA] = "HDA NVidia",
461 [AZX_DRIVER_TERA] = "HDA Teradici",
462 [AZX_DRIVER_GENERIC] = "HD-Audio Generic",
463 };
464
465 /*
466 * macros for easy use
467 */
468 #define azx_writel(chip,reg,value) \
469 writel(value, (chip)->remap_addr + ICH6_REG_##reg)
470 #define azx_readl(chip,reg) \
471 readl((chip)->remap_addr + ICH6_REG_##reg)
472 #define azx_writew(chip,reg,value) \
473 writew(value, (chip)->remap_addr + ICH6_REG_##reg)
474 #define azx_readw(chip,reg) \
475 readw((chip)->remap_addr + ICH6_REG_##reg)
476 #define azx_writeb(chip,reg,value) \
477 writeb(value, (chip)->remap_addr + ICH6_REG_##reg)
478 #define azx_readb(chip,reg) \
479 readb((chip)->remap_addr + ICH6_REG_##reg)
480
481 #define azx_sd_writel(dev,reg,value) \
482 writel(value, (dev)->sd_addr + ICH6_REG_##reg)
483 #define azx_sd_readl(dev,reg) \
484 readl((dev)->sd_addr + ICH6_REG_##reg)
485 #define azx_sd_writew(dev,reg,value) \
486 writew(value, (dev)->sd_addr + ICH6_REG_##reg)
487 #define azx_sd_readw(dev,reg) \
488 readw((dev)->sd_addr + ICH6_REG_##reg)
489 #define azx_sd_writeb(dev,reg,value) \
490 writeb(value, (dev)->sd_addr + ICH6_REG_##reg)
491 #define azx_sd_readb(dev,reg) \
492 readb((dev)->sd_addr + ICH6_REG_##reg)
493
494 /* for pcm support */
495 #define get_azx_dev(substream) (substream->runtime->private_data)
496
497 static int azx_acquire_irq(struct azx *chip, int do_disconnect);
498
499 /*
500 * Interface for HD codec
501 */
502
503 /*
504 * CORB / RIRB interface
505 */
506 static int azx_alloc_cmd_io(struct azx *chip)
507 {
508 int err;
509
510 /* single page (at least 4096 bytes) must suffice for both ringbuffes */
511 err = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV,
512 snd_dma_pci_data(chip->pci),
513 PAGE_SIZE, &chip->rb);
514 if (err < 0) {
515 snd_printk(KERN_ERR SFX "cannot allocate CORB/RIRB\n");
516 return err;
517 }
518 return 0;
519 }
520
521 static void azx_init_cmd_io(struct azx *chip)
522 {
523 spin_lock_irq(&chip->reg_lock);
524 /* CORB set up */
525 chip->corb.addr = chip->rb.addr;
526 chip->corb.buf = (u32 *)chip->rb.area;
527 azx_writel(chip, CORBLBASE, (u32)chip->corb.addr);
528 azx_writel(chip, CORBUBASE, upper_32_bits(chip->corb.addr));
529
530 /* set the corb size to 256 entries (ULI requires explicitly) */
531 azx_writeb(chip, CORBSIZE, 0x02);
532 /* set the corb write pointer to 0 */
533 azx_writew(chip, CORBWP, 0);
534 /* reset the corb hw read pointer */
535 azx_writew(chip, CORBRP, ICH6_CORBRP_RST);
536 /* enable corb dma */
537 azx_writeb(chip, CORBCTL, ICH6_CORBCTL_RUN);
538
539 /* RIRB set up */
540 chip->rirb.addr = chip->rb.addr + 2048;
541 chip->rirb.buf = (u32 *)(chip->rb.area + 2048);
542 chip->rirb.wp = chip->rirb.rp = 0;
543 memset(chip->rirb.cmds, 0, sizeof(chip->rirb.cmds));
544 azx_writel(chip, RIRBLBASE, (u32)chip->rirb.addr);
545 azx_writel(chip, RIRBUBASE, upper_32_bits(chip->rirb.addr));
546
547 /* set the rirb size to 256 entries (ULI requires explicitly) */
548 azx_writeb(chip, RIRBSIZE, 0x02);
549 /* reset the rirb hw write pointer */
550 azx_writew(chip, RIRBWP, ICH6_RIRBWP_RST);
551 /* set N=1, get RIRB response interrupt for new entry */
552 azx_writew(chip, RINTCNT, 1);
553 /* enable rirb dma and response irq */
554 azx_writeb(chip, RIRBCTL, ICH6_RBCTL_DMA_EN | ICH6_RBCTL_IRQ_EN);
555 spin_unlock_irq(&chip->reg_lock);
556 }
557
558 static void azx_free_cmd_io(struct azx *chip)
559 {
560 spin_lock_irq(&chip->reg_lock);
561 /* disable ringbuffer DMAs */
562 azx_writeb(chip, RIRBCTL, 0);
563 azx_writeb(chip, CORBCTL, 0);
564 spin_unlock_irq(&chip->reg_lock);
565 }
566
567 static unsigned int azx_command_addr(u32 cmd)
568 {
569 unsigned int addr = cmd >> 28;
570
571 if (addr >= AZX_MAX_CODECS) {
572 snd_BUG();
573 addr = 0;
574 }
575
576 return addr;
577 }
578
579 static unsigned int azx_response_addr(u32 res)
580 {
581 unsigned int addr = res & 0xf;
582
583 if (addr >= AZX_MAX_CODECS) {
584 snd_BUG();
585 addr = 0;
586 }
587
588 return addr;
589 }
590
591 /* send a command */
592 static int azx_corb_send_cmd(struct hda_bus *bus, u32 val)
593 {
594 struct azx *chip = bus->private_data;
595 unsigned int addr = azx_command_addr(val);
596 unsigned int wp;
597
598 spin_lock_irq(&chip->reg_lock);
599
600 /* add command to corb */
601 wp = azx_readb(chip, CORBWP);
602 wp++;
603 wp %= ICH6_MAX_CORB_ENTRIES;
604
605 chip->rirb.cmds[addr]++;
606 chip->corb.buf[wp] = cpu_to_le32(val);
607 azx_writel(chip, CORBWP, wp);
608
609 spin_unlock_irq(&chip->reg_lock);
610
611 return 0;
612 }
613
614 #define ICH6_RIRB_EX_UNSOL_EV (1<<4)
615
616 /* retrieve RIRB entry - called from interrupt handler */
617 static void azx_update_rirb(struct azx *chip)
618 {
619 unsigned int rp, wp;
620 unsigned int addr;
621 u32 res, res_ex;
622
623 wp = azx_readb(chip, RIRBWP);
624 if (wp == chip->rirb.wp)
625 return;
626 chip->rirb.wp = wp;
627
628 while (chip->rirb.rp != wp) {
629 chip->rirb.rp++;
630 chip->rirb.rp %= ICH6_MAX_RIRB_ENTRIES;
631
632 rp = chip->rirb.rp << 1; /* an RIRB entry is 8-bytes */
633 res_ex = le32_to_cpu(chip->rirb.buf[rp + 1]);
634 res = le32_to_cpu(chip->rirb.buf[rp]);
635 addr = azx_response_addr(res_ex);
636 if (res_ex & ICH6_RIRB_EX_UNSOL_EV)
637 snd_hda_queue_unsol_event(chip->bus, res, res_ex);
638 else if (chip->rirb.cmds[addr]) {
639 chip->rirb.res[addr] = res;
640 smp_wmb();
641 chip->rirb.cmds[addr]--;
642 } else
643 snd_printk(KERN_ERR SFX "spurious response %#x:%#x, "
644 "last cmd=%#08x\n",
645 res, res_ex,
646 chip->last_cmd[addr]);
647 }
648 }
649
650 /* receive a response */
651 static unsigned int azx_rirb_get_response(struct hda_bus *bus,
652 unsigned int addr)
653 {
654 struct azx *chip = bus->private_data;
655 unsigned long timeout;
656
657 again:
658 timeout = jiffies + msecs_to_jiffies(1000);
659 for (;;) {
660 if (chip->polling_mode) {
661 spin_lock_irq(&chip->reg_lock);
662 azx_update_rirb(chip);
663 spin_unlock_irq(&chip->reg_lock);
664 }
665 if (!chip->rirb.cmds[addr]) {
666 smp_rmb();
667 bus->rirb_error = 0;
668 return chip->rirb.res[addr]; /* the last value */
669 }
670 if (time_after(jiffies, timeout))
671 break;
672 if (bus->needs_damn_long_delay)
673 msleep(2); /* temporary workaround */
674 else {
675 udelay(10);
676 cond_resched();
677 }
678 }
679
680 if (chip->msi) {
681 snd_printk(KERN_WARNING SFX "No response from codec, "
682 "disabling MSI: last cmd=0x%08x\n",
683 chip->last_cmd[addr]);
684 free_irq(chip->irq, chip);
685 chip->irq = -1;
686 pci_disable_msi(chip->pci);
687 chip->msi = 0;
688 if (azx_acquire_irq(chip, 1) < 0) {
689 bus->rirb_error = 1;
690 return -1;
691 }
692 goto again;
693 }
694
695 if (!chip->polling_mode) {
696 snd_printk(KERN_WARNING SFX "azx_get_response timeout, "
697 "switching to polling mode: last cmd=0x%08x\n",
698 chip->last_cmd[addr]);
699 chip->polling_mode = 1;
700 goto again;
701 }
702
703 if (chip->probing) {
704 /* If this critical timeout happens during the codec probing
705 * phase, this is likely an access to a non-existing codec
706 * slot. Better to return an error and reset the system.
707 */
708 return -1;
709 }
710
711 /* a fatal communication error; need either to reset or to fallback
712 * to the single_cmd mode
713 */
714 bus->rirb_error = 1;
715 if (bus->allow_bus_reset && !bus->response_reset && !bus->in_reset) {
716 bus->response_reset = 1;
717 return -1; /* give a chance to retry */
718 }
719
720 snd_printk(KERN_ERR "hda_intel: azx_get_response timeout, "
721 "switching to single_cmd mode: last cmd=0x%08x\n",
722 chip->last_cmd[addr]);
723 chip->single_cmd = 1;
724 bus->response_reset = 0;
725 /* re-initialize CORB/RIRB */
726 azx_free_cmd_io(chip);
727 azx_init_cmd_io(chip);
728 return -1;
729 }
730
731 /*
732 * Use the single immediate command instead of CORB/RIRB for simplicity
733 *
734 * Note: according to Intel, this is not preferred use. The command was
735 * intended for the BIOS only, and may get confused with unsolicited
736 * responses. So, we shouldn't use it for normal operation from the
737 * driver.
738 * I left the codes, however, for debugging/testing purposes.
739 */
740
741 /* receive a response */
742 static int azx_single_wait_for_response(struct azx *chip, unsigned int addr)
743 {
744 int timeout = 50;
745
746 while (timeout--) {
747 /* check IRV busy bit */
748 if (azx_readw(chip, IRS) & ICH6_IRS_VALID) {
749 /* reuse rirb.res as the response return value */
750 chip->rirb.res[addr] = azx_readl(chip, IR);
751 return 0;
752 }
753 udelay(1);
754 }
755 if (printk_ratelimit())
756 snd_printd(SFX "get_response timeout: IRS=0x%x\n",
757 azx_readw(chip, IRS));
758 chip->rirb.res[addr] = -1;
759 return -EIO;
760 }
761
762 /* send a command */
763 static int azx_single_send_cmd(struct hda_bus *bus, u32 val)
764 {
765 struct azx *chip = bus->private_data;
766 unsigned int addr = azx_command_addr(val);
767 int timeout = 50;
768
769 bus->rirb_error = 0;
770 while (timeout--) {
771 /* check ICB busy bit */
772 if (!((azx_readw(chip, IRS) & ICH6_IRS_BUSY))) {
773 /* Clear IRV valid bit */
774 azx_writew(chip, IRS, azx_readw(chip, IRS) |
775 ICH6_IRS_VALID);
776 azx_writel(chip, IC, val);
777 azx_writew(chip, IRS, azx_readw(chip, IRS) |
778 ICH6_IRS_BUSY);
779 return azx_single_wait_for_response(chip, addr);
780 }
781 udelay(1);
782 }
783 if (printk_ratelimit())
784 snd_printd(SFX "send_cmd timeout: IRS=0x%x, val=0x%x\n",
785 azx_readw(chip, IRS), val);
786 return -EIO;
787 }
788
789 /* receive a response */
790 static unsigned int azx_single_get_response(struct hda_bus *bus,
791 unsigned int addr)
792 {
793 struct azx *chip = bus->private_data;
794 return chip->rirb.res[addr];
795 }
796
797 /*
798 * The below are the main callbacks from hda_codec.
799 *
800 * They are just the skeleton to call sub-callbacks according to the
801 * current setting of chip->single_cmd.
802 */
803
804 /* send a command */
805 static int azx_send_cmd(struct hda_bus *bus, unsigned int val)
806 {
807 struct azx *chip = bus->private_data;
808
809 chip->last_cmd[azx_command_addr(val)] = val;
810 if (chip->single_cmd)
811 return azx_single_send_cmd(bus, val);
812 else
813 return azx_corb_send_cmd(bus, val);
814 }
815
816 /* get a response */
817 static unsigned int azx_get_response(struct hda_bus *bus,
818 unsigned int addr)
819 {
820 struct azx *chip = bus->private_data;
821 if (chip->single_cmd)
822 return azx_single_get_response(bus, addr);
823 else
824 return azx_rirb_get_response(bus, addr);
825 }
826
827 #ifdef CONFIG_SND_HDA_POWER_SAVE
828 static void azx_power_notify(struct hda_bus *bus);
829 #endif
830
831 /* reset codec link */
832 static int azx_reset(struct azx *chip)
833 {
834 int count;
835
836 /* clear STATESTS */
837 azx_writeb(chip, STATESTS, STATESTS_INT_MASK);
838
839 /* reset controller */
840 azx_writel(chip, GCTL, azx_readl(chip, GCTL) & ~ICH6_GCTL_RESET);
841
842 count = 50;
843 while (azx_readb(chip, GCTL) && --count)
844 msleep(1);
845
846 /* delay for >= 100us for codec PLL to settle per spec
847 * Rev 0.9 section 5.5.1
848 */
849 msleep(1);
850
851 /* Bring controller out of reset */
852 azx_writeb(chip, GCTL, azx_readb(chip, GCTL) | ICH6_GCTL_RESET);
853
854 count = 50;
855 while (!azx_readb(chip, GCTL) && --count)
856 msleep(1);
857
858 /* Brent Chartrand said to wait >= 540us for codecs to initialize */
859 msleep(1);
860
861 /* check to see if controller is ready */
862 if (!azx_readb(chip, GCTL)) {
863 snd_printd(SFX "azx_reset: controller not ready!\n");
864 return -EBUSY;
865 }
866
867 /* Accept unsolicited responses */
868 azx_writel(chip, GCTL, azx_readl(chip, GCTL) | ICH6_GCTL_UNSOL);
869
870 /* detect codecs */
871 if (!chip->codec_mask) {
872 chip->codec_mask = azx_readw(chip, STATESTS);
873 snd_printdd(SFX "codec_mask = 0x%x\n", chip->codec_mask);
874 }
875
876 return 0;
877 }
878
879
880 /*
881 * Lowlevel interface
882 */
883
884 /* enable interrupts */
885 static void azx_int_enable(struct azx *chip)
886 {
887 /* enable controller CIE and GIE */
888 azx_writel(chip, INTCTL, azx_readl(chip, INTCTL) |
889 ICH6_INT_CTRL_EN | ICH6_INT_GLOBAL_EN);
890 }
891
892 /* disable interrupts */
893 static void azx_int_disable(struct azx *chip)
894 {
895 int i;
896
897 /* disable interrupts in stream descriptor */
898 for (i = 0; i < chip->num_streams; i++) {
899 struct azx_dev *azx_dev = &chip->azx_dev[i];
900 azx_sd_writeb(azx_dev, SD_CTL,
901 azx_sd_readb(azx_dev, SD_CTL) & ~SD_INT_MASK);
902 }
903
904 /* disable SIE for all streams */
905 azx_writeb(chip, INTCTL, 0);
906
907 /* disable controller CIE and GIE */
908 azx_writel(chip, INTCTL, azx_readl(chip, INTCTL) &
909 ~(ICH6_INT_CTRL_EN | ICH6_INT_GLOBAL_EN));
910 }
911
912 /* clear interrupts */
913 static void azx_int_clear(struct azx *chip)
914 {
915 int i;
916
917 /* clear stream status */
918 for (i = 0; i < chip->num_streams; i++) {
919 struct azx_dev *azx_dev = &chip->azx_dev[i];
920 azx_sd_writeb(azx_dev, SD_STS, SD_INT_MASK);
921 }
922
923 /* clear STATESTS */
924 azx_writeb(chip, STATESTS, STATESTS_INT_MASK);
925
926 /* clear rirb status */
927 azx_writeb(chip, RIRBSTS, RIRB_INT_MASK);
928
929 /* clear int status */
930 azx_writel(chip, INTSTS, ICH6_INT_CTRL_EN | ICH6_INT_ALL_STREAM);
931 }
932
933 /* start a stream */
934 static void azx_stream_start(struct azx *chip, struct azx_dev *azx_dev)
935 {
936 /*
937 * Before stream start, initialize parameter
938 */
939 azx_dev->insufficient = 1;
940
941 /* enable SIE */
942 azx_writeb(chip, INTCTL,
943 azx_readb(chip, INTCTL) | (1 << azx_dev->index));
944 /* set DMA start and interrupt mask */
945 azx_sd_writeb(azx_dev, SD_CTL, azx_sd_readb(azx_dev, SD_CTL) |
946 SD_CTL_DMA_START | SD_INT_MASK);
947 }
948
949 /* stop DMA */
950 static void azx_stream_clear(struct azx *chip, struct azx_dev *azx_dev)
951 {
952 azx_sd_writeb(azx_dev, SD_CTL, azx_sd_readb(azx_dev, SD_CTL) &
953 ~(SD_CTL_DMA_START | SD_INT_MASK));
954 azx_sd_writeb(azx_dev, SD_STS, SD_INT_MASK); /* to be sure */
955 }
956
957 /* stop a stream */
958 static void azx_stream_stop(struct azx *chip, struct azx_dev *azx_dev)
959 {
960 azx_stream_clear(chip, azx_dev);
961 /* disable SIE */
962 azx_writeb(chip, INTCTL,
963 azx_readb(chip, INTCTL) & ~(1 << azx_dev->index));
964 }
965
966
967 /*
968 * reset and start the controller registers
969 */
970 static void azx_init_chip(struct azx *chip)
971 {
972 if (chip->initialized)
973 return;
974
975 /* reset controller */
976 azx_reset(chip);
977
978 /* initialize interrupts */
979 azx_int_clear(chip);
980 azx_int_enable(chip);
981
982 /* initialize the codec command I/O */
983 azx_init_cmd_io(chip);
984
985 /* program the position buffer */
986 azx_writel(chip, DPLBASE, (u32)chip->posbuf.addr);
987 azx_writel(chip, DPUBASE, upper_32_bits(chip->posbuf.addr));
988
989 chip->initialized = 1;
990 }
991
992 /*
993 * initialize the PCI registers
994 */
995 /* update bits in a PCI register byte */
996 static void update_pci_byte(struct pci_dev *pci, unsigned int reg,
997 unsigned char mask, unsigned char val)
998 {
999 unsigned char data;
1000
1001 pci_read_config_byte(pci, reg, &data);
1002 data &= ~mask;
1003 data |= (val & mask);
1004 pci_write_config_byte(pci, reg, data);
1005 }
1006
1007 static void azx_init_pci(struct azx *chip)
1008 {
1009 unsigned short snoop;
1010
1011 /* Clear bits 0-2 of PCI register TCSEL (at offset 0x44)
1012 * TCSEL == Traffic Class Select Register, which sets PCI express QOS
1013 * Ensuring these bits are 0 clears playback static on some HD Audio
1014 * codecs
1015 */
1016 update_pci_byte(chip->pci, ICH6_PCIREG_TCSEL, 0x07, 0);
1017
1018 switch (chip->driver_type) {
1019 case AZX_DRIVER_ATI:
1020 /* For ATI SB450 azalia HD audio, we need to enable snoop */
1021 update_pci_byte(chip->pci,
1022 ATI_SB450_HDAUDIO_MISC_CNTR2_ADDR,
1023 0x07, ATI_SB450_HDAUDIO_ENABLE_SNOOP);
1024 break;
1025 case AZX_DRIVER_NVIDIA:
1026 /* For NVIDIA HDA, enable snoop */
1027 update_pci_byte(chip->pci,
1028 NVIDIA_HDA_TRANSREG_ADDR,
1029 0x0f, NVIDIA_HDA_ENABLE_COHBITS);
1030 update_pci_byte(chip->pci,
1031 NVIDIA_HDA_ISTRM_COH,
1032 0x01, NVIDIA_HDA_ENABLE_COHBIT);
1033 update_pci_byte(chip->pci,
1034 NVIDIA_HDA_OSTRM_COH,
1035 0x01, NVIDIA_HDA_ENABLE_COHBIT);
1036 break;
1037 case AZX_DRIVER_SCH:
1038 pci_read_config_word(chip->pci, INTEL_SCH_HDA_DEVC, &snoop);
1039 if (snoop & INTEL_SCH_HDA_DEVC_NOSNOOP) {
1040 pci_write_config_word(chip->pci, INTEL_SCH_HDA_DEVC,
1041 snoop & (~INTEL_SCH_HDA_DEVC_NOSNOOP));
1042 pci_read_config_word(chip->pci,
1043 INTEL_SCH_HDA_DEVC, &snoop);
1044 snd_printdd(SFX "HDA snoop disabled, enabling ... %s\n",
1045 (snoop & INTEL_SCH_HDA_DEVC_NOSNOOP)
1046 ? "Failed" : "OK");
1047 }
1048 break;
1049
1050 }
1051 }
1052
1053
1054 static int azx_position_ok(struct azx *chip, struct azx_dev *azx_dev);
1055
1056 /*
1057 * interrupt handler
1058 */
1059 static irqreturn_t azx_interrupt(int irq, void *dev_id)
1060 {
1061 struct azx *chip = dev_id;
1062 struct azx_dev *azx_dev;
1063 u32 status;
1064 int i, ok;
1065
1066 spin_lock(&chip->reg_lock);
1067
1068 status = azx_readl(chip, INTSTS);
1069 if (status == 0) {
1070 spin_unlock(&chip->reg_lock);
1071 return IRQ_NONE;
1072 }
1073
1074 for (i = 0; i < chip->num_streams; i++) {
1075 azx_dev = &chip->azx_dev[i];
1076 if (status & azx_dev->sd_int_sta_mask) {
1077 azx_sd_writeb(azx_dev, SD_STS, SD_INT_MASK);
1078 if (!azx_dev->substream || !azx_dev->running)
1079 continue;
1080 /* check whether this IRQ is really acceptable */
1081 ok = azx_position_ok(chip, azx_dev);
1082 if (ok == 1) {
1083 azx_dev->irq_pending = 0;
1084 spin_unlock(&chip->reg_lock);
1085 snd_pcm_period_elapsed(azx_dev->substream);
1086 spin_lock(&chip->reg_lock);
1087 } else if (ok == 0 && chip->bus && chip->bus->workq) {
1088 /* bogus IRQ, process it later */
1089 azx_dev->irq_pending = 1;
1090 queue_work(chip->bus->workq,
1091 &chip->irq_pending_work);
1092 }
1093 }
1094 }
1095
1096 /* clear rirb int */
1097 status = azx_readb(chip, RIRBSTS);
1098 if (status & RIRB_INT_MASK) {
1099 if (status & RIRB_INT_RESPONSE)
1100 azx_update_rirb(chip);
1101 azx_writeb(chip, RIRBSTS, RIRB_INT_MASK);
1102 }
1103
1104 #if 0
1105 /* clear state status int */
1106 if (azx_readb(chip, STATESTS) & 0x04)
1107 azx_writeb(chip, STATESTS, 0x04);
1108 #endif
1109 spin_unlock(&chip->reg_lock);
1110
1111 return IRQ_HANDLED;
1112 }
1113
1114
1115 /*
1116 * set up a BDL entry
1117 */
1118 static int setup_bdle(struct snd_pcm_substream *substream,
1119 struct azx_dev *azx_dev, u32 **bdlp,
1120 int ofs, int size, int with_ioc)
1121 {
1122 u32 *bdl = *bdlp;
1123
1124 while (size > 0) {
1125 dma_addr_t addr;
1126 int chunk;
1127
1128 if (azx_dev->frags >= AZX_MAX_BDL_ENTRIES)
1129 return -EINVAL;
1130
1131 addr = snd_pcm_sgbuf_get_addr(substream, ofs);
1132 /* program the address field of the BDL entry */
1133 bdl[0] = cpu_to_le32((u32)addr);
1134 bdl[1] = cpu_to_le32(upper_32_bits(addr));
1135 /* program the size field of the BDL entry */
1136 chunk = snd_pcm_sgbuf_get_chunk_size(substream, ofs, size);
1137 bdl[2] = cpu_to_le32(chunk);
1138 /* program the IOC to enable interrupt
1139 * only when the whole fragment is processed
1140 */
1141 size -= chunk;
1142 bdl[3] = (size || !with_ioc) ? 0 : cpu_to_le32(0x01);
1143 bdl += 4;
1144 azx_dev->frags++;
1145 ofs += chunk;
1146 }
1147 *bdlp = bdl;
1148 return ofs;
1149 }
1150
1151 /*
1152 * set up BDL entries
1153 */
1154 static int azx_setup_periods(struct azx *chip,
1155 struct snd_pcm_substream *substream,
1156 struct azx_dev *azx_dev)
1157 {
1158 u32 *bdl;
1159 int i, ofs, periods, period_bytes;
1160 int pos_adj;
1161
1162 /* reset BDL address */
1163 azx_sd_writel(azx_dev, SD_BDLPL, 0);
1164 azx_sd_writel(azx_dev, SD_BDLPU, 0);
1165
1166 period_bytes = azx_dev->period_bytes;
1167 periods = azx_dev->bufsize / period_bytes;
1168
1169 /* program the initial BDL entries */
1170 bdl = (u32 *)azx_dev->bdl.area;
1171 ofs = 0;
1172 azx_dev->frags = 0;
1173 pos_adj = bdl_pos_adj[chip->dev_index];
1174 if (pos_adj > 0) {
1175 struct snd_pcm_runtime *runtime = substream->runtime;
1176 int pos_align = pos_adj;
1177 pos_adj = (pos_adj * runtime->rate + 47999) / 48000;
1178 if (!pos_adj)
1179 pos_adj = pos_align;
1180 else
1181 pos_adj = ((pos_adj + pos_align - 1) / pos_align) *
1182 pos_align;
1183 pos_adj = frames_to_bytes(runtime, pos_adj);
1184 if (pos_adj >= period_bytes) {
1185 snd_printk(KERN_WARNING SFX "Too big adjustment %d\n",
1186 bdl_pos_adj[chip->dev_index]);
1187 pos_adj = 0;
1188 } else {
1189 ofs = setup_bdle(substream, azx_dev,
1190 &bdl, ofs, pos_adj, 1);
1191 if (ofs < 0)
1192 goto error;
1193 }
1194 } else
1195 pos_adj = 0;
1196 for (i = 0; i < periods; i++) {
1197 if (i == periods - 1 && pos_adj)
1198 ofs = setup_bdle(substream, azx_dev, &bdl, ofs,
1199 period_bytes - pos_adj, 0);
1200 else
1201 ofs = setup_bdle(substream, azx_dev, &bdl, ofs,
1202 period_bytes, 1);
1203 if (ofs < 0)
1204 goto error;
1205 }
1206 return 0;
1207
1208 error:
1209 snd_printk(KERN_ERR SFX "Too many BDL entries: buffer=%d, period=%d\n",
1210 azx_dev->bufsize, period_bytes);
1211 return -EINVAL;
1212 }
1213
1214 /* reset stream */
1215 static void azx_stream_reset(struct azx *chip, struct azx_dev *azx_dev)
1216 {
1217 unsigned char val;
1218 int timeout;
1219
1220 azx_stream_clear(chip, azx_dev);
1221
1222 azx_sd_writeb(azx_dev, SD_CTL, azx_sd_readb(azx_dev, SD_CTL) |
1223 SD_CTL_STREAM_RESET);
1224 udelay(3);
1225 timeout = 300;
1226 while (!((val = azx_sd_readb(azx_dev, SD_CTL)) & SD_CTL_STREAM_RESET) &&
1227 --timeout)
1228 ;
1229 val &= ~SD_CTL_STREAM_RESET;
1230 azx_sd_writeb(azx_dev, SD_CTL, val);
1231 udelay(3);
1232
1233 timeout = 300;
1234 /* waiting for hardware to report that the stream is out of reset */
1235 while (((val = azx_sd_readb(azx_dev, SD_CTL)) & SD_CTL_STREAM_RESET) &&
1236 --timeout)
1237 ;
1238
1239 /* reset first position - may not be synced with hw at this time */
1240 *azx_dev->posbuf = 0;
1241 }
1242
1243 /*
1244 * set up the SD for streaming
1245 */
1246 static int azx_setup_controller(struct azx *chip, struct azx_dev *azx_dev)
1247 {
1248 /* make sure the run bit is zero for SD */
1249 azx_stream_clear(chip, azx_dev);
1250 /* program the stream_tag */
1251 azx_sd_writel(azx_dev, SD_CTL,
1252 (azx_sd_readl(azx_dev, SD_CTL) & ~SD_CTL_STREAM_TAG_MASK)|
1253 (azx_dev->stream_tag << SD_CTL_STREAM_TAG_SHIFT));
1254
1255 /* program the length of samples in cyclic buffer */
1256 azx_sd_writel(azx_dev, SD_CBL, azx_dev->bufsize);
1257
1258 /* program the stream format */
1259 /* this value needs to be the same as the one programmed */
1260 azx_sd_writew(azx_dev, SD_FORMAT, azx_dev->format_val);
1261
1262 /* program the stream LVI (last valid index) of the BDL */
1263 azx_sd_writew(azx_dev, SD_LVI, azx_dev->frags - 1);
1264
1265 /* program the BDL address */
1266 /* lower BDL address */
1267 azx_sd_writel(azx_dev, SD_BDLPL, (u32)azx_dev->bdl.addr);
1268 /* upper BDL address */
1269 azx_sd_writel(azx_dev, SD_BDLPU, upper_32_bits(azx_dev->bdl.addr));
1270
1271 /* enable the position buffer */
1272 if (chip->position_fix == POS_FIX_POSBUF ||
1273 chip->position_fix == POS_FIX_AUTO ||
1274 chip->via_dmapos_patch) {
1275 if (!(azx_readl(chip, DPLBASE) & ICH6_DPLBASE_ENABLE))
1276 azx_writel(chip, DPLBASE,
1277 (u32)chip->posbuf.addr | ICH6_DPLBASE_ENABLE);
1278 }
1279
1280 /* set the interrupt enable bits in the descriptor control register */
1281 azx_sd_writel(azx_dev, SD_CTL,
1282 azx_sd_readl(azx_dev, SD_CTL) | SD_INT_MASK);
1283
1284 return 0;
1285 }
1286
1287 /*
1288 * Probe the given codec address
1289 */
1290 static int probe_codec(struct azx *chip, int addr)
1291 {
1292 unsigned int cmd = (addr << 28) | (AC_NODE_ROOT << 20) |
1293 (AC_VERB_PARAMETERS << 8) | AC_PAR_VENDOR_ID;
1294 unsigned int res;
1295
1296 mutex_lock(&chip->bus->cmd_mutex);
1297 chip->probing = 1;
1298 azx_send_cmd(chip->bus, cmd);
1299 res = azx_get_response(chip->bus, addr);
1300 chip->probing = 0;
1301 mutex_unlock(&chip->bus->cmd_mutex);
1302 if (res == -1)
1303 return -EIO;
1304 snd_printdd(SFX "codec #%d probed OK\n", addr);
1305 return 0;
1306 }
1307
1308 static int azx_attach_pcm_stream(struct hda_bus *bus, struct hda_codec *codec,
1309 struct hda_pcm *cpcm);
1310 static void azx_stop_chip(struct azx *chip);
1311
1312 static void azx_bus_reset(struct hda_bus *bus)
1313 {
1314 struct azx *chip = bus->private_data;
1315
1316 bus->in_reset = 1;
1317 azx_stop_chip(chip);
1318 azx_init_chip(chip);
1319 #ifdef CONFIG_PM
1320 if (chip->initialized) {
1321 int i;
1322
1323 for (i = 0; i < AZX_MAX_PCMS; i++)
1324 snd_pcm_suspend_all(chip->pcm[i]);
1325 snd_hda_suspend(chip->bus);
1326 snd_hda_resume(chip->bus);
1327 }
1328 #endif
1329 bus->in_reset = 0;
1330 }
1331
1332 /*
1333 * Codec initialization
1334 */
1335
1336 /* number of codec slots for each chipset: 0 = default slots (i.e. 4) */
1337 static unsigned int azx_max_codecs[AZX_NUM_DRIVERS] __devinitdata = {
1338 [AZX_DRIVER_TERA] = 1,
1339 };
1340
1341 static int __devinit azx_codec_create(struct azx *chip, const char *model)
1342 {
1343 struct hda_bus_template bus_temp;
1344 int c, codecs, err;
1345 int max_slots;
1346
1347 memset(&bus_temp, 0, sizeof(bus_temp));
1348 bus_temp.private_data = chip;
1349 bus_temp.modelname = model;
1350 bus_temp.pci = chip->pci;
1351 bus_temp.ops.command = azx_send_cmd;
1352 bus_temp.ops.get_response = azx_get_response;
1353 bus_temp.ops.attach_pcm = azx_attach_pcm_stream;
1354 bus_temp.ops.bus_reset = azx_bus_reset;
1355 #ifdef CONFIG_SND_HDA_POWER_SAVE
1356 bus_temp.power_save = &power_save;
1357 bus_temp.ops.pm_notify = azx_power_notify;
1358 #endif
1359
1360 err = snd_hda_bus_new(chip->card, &bus_temp, &chip->bus);
1361 if (err < 0)
1362 return err;
1363
1364 if (chip->driver_type == AZX_DRIVER_NVIDIA)
1365 chip->bus->needs_damn_long_delay = 1;
1366
1367 codecs = 0;
1368 max_slots = azx_max_codecs[chip->driver_type];
1369 if (!max_slots)
1370 max_slots = AZX_MAX_CODECS;
1371
1372 /* First try to probe all given codec slots */
1373 for (c = 0; c < max_slots; c++) {
1374 if ((chip->codec_mask & (1 << c)) & chip->codec_probe_mask) {
1375 if (probe_codec(chip, c) < 0) {
1376 /* Some BIOSen give you wrong codec addresses
1377 * that don't exist
1378 */
1379 snd_printk(KERN_WARNING SFX
1380 "Codec #%d probe error; "
1381 "disabling it...\n", c);
1382 chip->codec_mask &= ~(1 << c);
1383 /* More badly, accessing to a non-existing
1384 * codec often screws up the controller chip,
1385 * and distrubs the further communications.
1386 * Thus if an error occurs during probing,
1387 * better to reset the controller chip to
1388 * get back to the sanity state.
1389 */
1390 azx_stop_chip(chip);
1391 azx_init_chip(chip);
1392 }
1393 }
1394 }
1395
1396 /* Then create codec instances */
1397 for (c = 0; c < max_slots; c++) {
1398 if ((chip->codec_mask & (1 << c)) & chip->codec_probe_mask) {
1399 struct hda_codec *codec;
1400 err = snd_hda_codec_new(chip->bus, c, &codec);
1401 if (err < 0)
1402 continue;
1403 codecs++;
1404 }
1405 }
1406 if (!codecs) {
1407 snd_printk(KERN_ERR SFX "no codecs initialized\n");
1408 return -ENXIO;
1409 }
1410 return 0;
1411 }
1412
1413 /* configure each codec instance */
1414 static int __devinit azx_codec_configure(struct azx *chip)
1415 {
1416 struct hda_codec *codec;
1417 list_for_each_entry(codec, &chip->bus->codec_list, list) {
1418 snd_hda_codec_configure(codec);
1419 }
1420 return 0;
1421 }
1422
1423
1424 /*
1425 * PCM support
1426 */
1427
1428 /* assign a stream for the PCM */
1429 static inline struct azx_dev *azx_assign_device(struct azx *chip, int stream)
1430 {
1431 int dev, i, nums;
1432 if (stream == SNDRV_PCM_STREAM_PLAYBACK) {
1433 dev = chip->playback_index_offset;
1434 nums = chip->playback_streams;
1435 } else {
1436 dev = chip->capture_index_offset;
1437 nums = chip->capture_streams;
1438 }
1439 for (i = 0; i < nums; i++, dev++)
1440 if (!chip->azx_dev[dev].opened) {
1441 chip->azx_dev[dev].opened = 1;
1442 return &chip->azx_dev[dev];
1443 }
1444 return NULL;
1445 }
1446
1447 /* release the assigned stream */
1448 static inline void azx_release_device(struct azx_dev *azx_dev)
1449 {
1450 azx_dev->opened = 0;
1451 }
1452
1453 static struct snd_pcm_hardware azx_pcm_hw = {
1454 .info = (SNDRV_PCM_INFO_MMAP |
1455 SNDRV_PCM_INFO_INTERLEAVED |
1456 SNDRV_PCM_INFO_BLOCK_TRANSFER |
1457 SNDRV_PCM_INFO_MMAP_VALID |
1458 /* No full-resume yet implemented */
1459 /* SNDRV_PCM_INFO_RESUME |*/
1460 SNDRV_PCM_INFO_PAUSE |
1461 SNDRV_PCM_INFO_SYNC_START),
1462 .formats = SNDRV_PCM_FMTBIT_S16_LE,
1463 .rates = SNDRV_PCM_RATE_48000,
1464 .rate_min = 48000,
1465 .rate_max = 48000,
1466 .channels_min = 2,
1467 .channels_max = 2,
1468 .buffer_bytes_max = AZX_MAX_BUF_SIZE,
1469 .period_bytes_min = 128,
1470 .period_bytes_max = AZX_MAX_BUF_SIZE / 2,
1471 .periods_min = 2,
1472 .periods_max = AZX_MAX_FRAG,
1473 .fifo_size = 0,
1474 };
1475
1476 struct azx_pcm {
1477 struct azx *chip;
1478 struct hda_codec *codec;
1479 struct hda_pcm_stream *hinfo[2];
1480 };
1481
1482 static int azx_pcm_open(struct snd_pcm_substream *substream)
1483 {
1484 struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
1485 struct hda_pcm_stream *hinfo = apcm->hinfo[substream->stream];
1486 struct azx *chip = apcm->chip;
1487 struct azx_dev *azx_dev;
1488 struct snd_pcm_runtime *runtime = substream->runtime;
1489 unsigned long flags;
1490 int err;
1491
1492 mutex_lock(&chip->open_mutex);
1493 azx_dev = azx_assign_device(chip, substream->stream);
1494 if (azx_dev == NULL) {
1495 mutex_unlock(&chip->open_mutex);
1496 return -EBUSY;
1497 }
1498 runtime->hw = azx_pcm_hw;
1499 runtime->hw.channels_min = hinfo->channels_min;
1500 runtime->hw.channels_max = hinfo->channels_max;
1501 runtime->hw.formats = hinfo->formats;
1502 runtime->hw.rates = hinfo->rates;
1503 snd_pcm_limit_hw_rates(runtime);
1504 snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS);
1505 snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_BUFFER_BYTES,
1506 128);
1507 snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES,
1508 128);
1509 snd_hda_power_up(apcm->codec);
1510 err = hinfo->ops.open(hinfo, apcm->codec, substream);
1511 if (err < 0) {
1512 azx_release_device(azx_dev);
1513 snd_hda_power_down(apcm->codec);
1514 mutex_unlock(&chip->open_mutex);
1515 return err;
1516 }
1517 snd_pcm_limit_hw_rates(runtime);
1518 /* sanity check */
1519 if (snd_BUG_ON(!runtime->hw.channels_min) ||
1520 snd_BUG_ON(!runtime->hw.channels_max) ||
1521 snd_BUG_ON(!runtime->hw.formats) ||
1522 snd_BUG_ON(!runtime->hw.rates)) {
1523 azx_release_device(azx_dev);
1524 hinfo->ops.close(hinfo, apcm->codec, substream);
1525 snd_hda_power_down(apcm->codec);
1526 mutex_unlock(&chip->open_mutex);
1527 return -EINVAL;
1528 }
1529 spin_lock_irqsave(&chip->reg_lock, flags);
1530 azx_dev->substream = substream;
1531 azx_dev->running = 0;
1532 spin_unlock_irqrestore(&chip->reg_lock, flags);
1533
1534 runtime->private_data = azx_dev;
1535 snd_pcm_set_sync(substream);
1536 mutex_unlock(&chip->open_mutex);
1537 return 0;
1538 }
1539
1540 static int azx_pcm_close(struct snd_pcm_substream *substream)
1541 {
1542 struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
1543 struct hda_pcm_stream *hinfo = apcm->hinfo[substream->stream];
1544 struct azx *chip = apcm->chip;
1545 struct azx_dev *azx_dev = get_azx_dev(substream);
1546 unsigned long flags;
1547
1548 mutex_lock(&chip->open_mutex);
1549 spin_lock_irqsave(&chip->reg_lock, flags);
1550 azx_dev->substream = NULL;
1551 azx_dev->running = 0;
1552 spin_unlock_irqrestore(&chip->reg_lock, flags);
1553 azx_release_device(azx_dev);
1554 hinfo->ops.close(hinfo, apcm->codec, substream);
1555 snd_hda_power_down(apcm->codec);
1556 mutex_unlock(&chip->open_mutex);
1557 return 0;
1558 }
1559
1560 static int azx_pcm_hw_params(struct snd_pcm_substream *substream,
1561 struct snd_pcm_hw_params *hw_params)
1562 {
1563 struct azx_dev *azx_dev = get_azx_dev(substream);
1564
1565 azx_dev->bufsize = 0;
1566 azx_dev->period_bytes = 0;
1567 azx_dev->format_val = 0;
1568 return snd_pcm_lib_malloc_pages(substream,
1569 params_buffer_bytes(hw_params));
1570 }
1571
1572 static int azx_pcm_hw_free(struct snd_pcm_substream *substream)
1573 {
1574 struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
1575 struct azx_dev *azx_dev = get_azx_dev(substream);
1576 struct hda_pcm_stream *hinfo = apcm->hinfo[substream->stream];
1577
1578 /* reset BDL address */
1579 azx_sd_writel(azx_dev, SD_BDLPL, 0);
1580 azx_sd_writel(azx_dev, SD_BDLPU, 0);
1581 azx_sd_writel(azx_dev, SD_CTL, 0);
1582 azx_dev->bufsize = 0;
1583 azx_dev->period_bytes = 0;
1584 azx_dev->format_val = 0;
1585
1586 hinfo->ops.cleanup(hinfo, apcm->codec, substream);
1587
1588 return snd_pcm_lib_free_pages(substream);
1589 }
1590
1591 static int azx_pcm_prepare(struct snd_pcm_substream *substream)
1592 {
1593 struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
1594 struct azx *chip = apcm->chip;
1595 struct azx_dev *azx_dev = get_azx_dev(substream);
1596 struct hda_pcm_stream *hinfo = apcm->hinfo[substream->stream];
1597 struct snd_pcm_runtime *runtime = substream->runtime;
1598 unsigned int bufsize, period_bytes, format_val;
1599 int err;
1600
1601 azx_stream_reset(chip, azx_dev);
1602 format_val = snd_hda_calc_stream_format(runtime->rate,
1603 runtime->channels,
1604 runtime->format,
1605 hinfo->maxbps);
1606 if (!format_val) {
1607 snd_printk(KERN_ERR SFX
1608 "invalid format_val, rate=%d, ch=%d, format=%d\n",
1609 runtime->rate, runtime->channels, runtime->format);
1610 return -EINVAL;
1611 }
1612
1613 bufsize = snd_pcm_lib_buffer_bytes(substream);
1614 period_bytes = snd_pcm_lib_period_bytes(substream);
1615
1616 snd_printdd(SFX "azx_pcm_prepare: bufsize=0x%x, format=0x%x\n",
1617 bufsize, format_val);
1618
1619 if (bufsize != azx_dev->bufsize ||
1620 period_bytes != azx_dev->period_bytes ||
1621 format_val != azx_dev->format_val) {
1622 azx_dev->bufsize = bufsize;
1623 azx_dev->period_bytes = period_bytes;
1624 azx_dev->format_val = format_val;
1625 err = azx_setup_periods(chip, substream, azx_dev);
1626 if (err < 0)
1627 return err;
1628 }
1629
1630 azx_dev->min_jiffies = (runtime->period_size * HZ) /
1631 (runtime->rate * 2);
1632 azx_setup_controller(chip, azx_dev);
1633 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
1634 azx_dev->fifo_size = azx_sd_readw(azx_dev, SD_FIFOSIZE) + 1;
1635 else
1636 azx_dev->fifo_size = 0;
1637
1638 return hinfo->ops.prepare(hinfo, apcm->codec, azx_dev->stream_tag,
1639 azx_dev->format_val, substream);
1640 }
1641
1642 static int azx_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
1643 {
1644 struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
1645 struct azx *chip = apcm->chip;
1646 struct azx_dev *azx_dev;
1647 struct snd_pcm_substream *s;
1648 int rstart = 0, start, nsync = 0, sbits = 0;
1649 int nwait, timeout;
1650
1651 switch (cmd) {
1652 case SNDRV_PCM_TRIGGER_START:
1653 rstart = 1;
1654 case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
1655 case SNDRV_PCM_TRIGGER_RESUME:
1656 start = 1;
1657 break;
1658 case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
1659 case SNDRV_PCM_TRIGGER_SUSPEND:
1660 case SNDRV_PCM_TRIGGER_STOP:
1661 start = 0;
1662 break;
1663 default:
1664 return -EINVAL;
1665 }
1666
1667 snd_pcm_group_for_each_entry(s, substream) {
1668 if (s->pcm->card != substream->pcm->card)
1669 continue;
1670 azx_dev = get_azx_dev(s);
1671 sbits |= 1 << azx_dev->index;
1672 nsync++;
1673 snd_pcm_trigger_done(s, substream);
1674 }
1675
1676 spin_lock(&chip->reg_lock);
1677 if (nsync > 1) {
1678 /* first, set SYNC bits of corresponding streams */
1679 azx_writel(chip, SYNC, azx_readl(chip, SYNC) | sbits);
1680 }
1681 snd_pcm_group_for_each_entry(s, substream) {
1682 if (s->pcm->card != substream->pcm->card)
1683 continue;
1684 azx_dev = get_azx_dev(s);
1685 if (rstart) {
1686 azx_dev->start_flag = 1;
1687 azx_dev->start_jiffies = jiffies + azx_dev->min_jiffies;
1688 }
1689 if (start)
1690 azx_stream_start(chip, azx_dev);
1691 else
1692 azx_stream_stop(chip, azx_dev);
1693 azx_dev->running = start;
1694 }
1695 spin_unlock(&chip->reg_lock);
1696 if (start) {
1697 if (nsync == 1)
1698 return 0;
1699 /* wait until all FIFOs get ready */
1700 for (timeout = 5000; timeout; timeout--) {
1701 nwait = 0;
1702 snd_pcm_group_for_each_entry(s, substream) {
1703 if (s->pcm->card != substream->pcm->card)
1704 continue;
1705 azx_dev = get_azx_dev(s);
1706 if (!(azx_sd_readb(azx_dev, SD_STS) &
1707 SD_STS_FIFO_READY))
1708 nwait++;
1709 }
1710 if (!nwait)
1711 break;
1712 cpu_relax();
1713 }
1714 } else {
1715 /* wait until all RUN bits are cleared */
1716 for (timeout = 5000; timeout; timeout--) {
1717 nwait = 0;
1718 snd_pcm_group_for_each_entry(s, substream) {
1719 if (s->pcm->card != substream->pcm->card)
1720 continue;
1721 azx_dev = get_azx_dev(s);
1722 if (azx_sd_readb(azx_dev, SD_CTL) &
1723 SD_CTL_DMA_START)
1724 nwait++;
1725 }
1726 if (!nwait)
1727 break;
1728 cpu_relax();
1729 }
1730 }
1731 if (nsync > 1) {
1732 spin_lock(&chip->reg_lock);
1733 /* reset SYNC bits */
1734 azx_writel(chip, SYNC, azx_readl(chip, SYNC) & ~sbits);
1735 spin_unlock(&chip->reg_lock);
1736 }
1737 return 0;
1738 }
1739
1740 /* get the current DMA position with correction on VIA chips */
1741 static unsigned int azx_via_get_position(struct azx *chip,
1742 struct azx_dev *azx_dev)
1743 {
1744 unsigned int link_pos, mini_pos, bound_pos;
1745 unsigned int mod_link_pos, mod_dma_pos, mod_mini_pos;
1746 unsigned int fifo_size;
1747
1748 link_pos = azx_sd_readl(azx_dev, SD_LPIB);
1749 if (azx_dev->index >= 4) {
1750 /* Playback, no problem using link position */
1751 return link_pos;
1752 }
1753
1754 /* Capture */
1755 /* For new chipset,
1756 * use mod to get the DMA position just like old chipset
1757 */
1758 mod_dma_pos = le32_to_cpu(*azx_dev->posbuf);
1759 mod_dma_pos %= azx_dev->period_bytes;
1760
1761 /* azx_dev->fifo_size can't get FIFO size of in stream.
1762 * Get from base address + offset.
1763 */
1764 fifo_size = readw(chip->remap_addr + VIA_IN_STREAM0_FIFO_SIZE_OFFSET);
1765
1766 if (azx_dev->insufficient) {
1767 /* Link position never gather than FIFO size */
1768 if (link_pos <= fifo_size)
1769 return 0;
1770
1771 azx_dev->insufficient = 0;
1772 }
1773
1774 if (link_pos <= fifo_size)
1775 mini_pos = azx_dev->bufsize + link_pos - fifo_size;
1776 else
1777 mini_pos = link_pos - fifo_size;
1778
1779 /* Find nearest previous boudary */
1780 mod_mini_pos = mini_pos % azx_dev->period_bytes;
1781 mod_link_pos = link_pos % azx_dev->period_bytes;
1782 if (mod_link_pos >= fifo_size)
1783 bound_pos = link_pos - mod_link_pos;
1784 else if (mod_dma_pos >= mod_mini_pos)
1785 bound_pos = mini_pos - mod_mini_pos;
1786 else {
1787 bound_pos = mini_pos - mod_mini_pos + azx_dev->period_bytes;
1788 if (bound_pos >= azx_dev->bufsize)
1789 bound_pos = 0;
1790 }
1791
1792 /* Calculate real DMA position we want */
1793 return bound_pos + mod_dma_pos;
1794 }
1795
1796 static unsigned int azx_get_position(struct azx *chip,
1797 struct azx_dev *azx_dev)
1798 {
1799 unsigned int pos;
1800
1801 if (chip->via_dmapos_patch)
1802 pos = azx_via_get_position(chip, azx_dev);
1803 else if (chip->position_fix == POS_FIX_POSBUF ||
1804 chip->position_fix == POS_FIX_AUTO) {
1805 /* use the position buffer */
1806 pos = le32_to_cpu(*azx_dev->posbuf);
1807 } else {
1808 /* read LPIB */
1809 pos = azx_sd_readl(azx_dev, SD_LPIB);
1810 }
1811 if (pos >= azx_dev->bufsize)
1812 pos = 0;
1813 return pos;
1814 }
1815
1816 static snd_pcm_uframes_t azx_pcm_pointer(struct snd_pcm_substream *substream)
1817 {
1818 struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
1819 struct azx *chip = apcm->chip;
1820 struct azx_dev *azx_dev = get_azx_dev(substream);
1821 return bytes_to_frames(substream->runtime,
1822 azx_get_position(chip, azx_dev));
1823 }
1824
1825 /*
1826 * Check whether the current DMA position is acceptable for updating
1827 * periods. Returns non-zero if it's OK.
1828 *
1829 * Many HD-audio controllers appear pretty inaccurate about
1830 * the update-IRQ timing. The IRQ is issued before actually the
1831 * data is processed. So, we need to process it afterwords in a
1832 * workqueue.
1833 */
1834 static int azx_position_ok(struct azx *chip, struct azx_dev *azx_dev)
1835 {
1836 unsigned int pos;
1837
1838 if (azx_dev->start_flag &&
1839 time_before_eq(jiffies, azx_dev->start_jiffies))
1840 return -1; /* bogus (too early) interrupt */
1841 azx_dev->start_flag = 0;
1842
1843 pos = azx_get_position(chip, azx_dev);
1844 if (chip->position_fix == POS_FIX_AUTO) {
1845 if (!pos) {
1846 printk(KERN_WARNING
1847 "hda-intel: Invalid position buffer, "
1848 "using LPIB read method instead.\n");
1849 chip->position_fix = POS_FIX_LPIB;
1850 pos = azx_get_position(chip, azx_dev);
1851 } else
1852 chip->position_fix = POS_FIX_POSBUF;
1853 }
1854
1855 if (!bdl_pos_adj[chip->dev_index])
1856 return 1; /* no delayed ack */
1857 if (pos % azx_dev->period_bytes > azx_dev->period_bytes / 2)
1858 return 0; /* NG - it's below the period boundary */
1859 return 1; /* OK, it's fine */
1860 }
1861
1862 /*
1863 * The work for pending PCM period updates.
1864 */
1865 static void azx_irq_pending_work(struct work_struct *work)
1866 {
1867 struct azx *chip = container_of(work, struct azx, irq_pending_work);
1868 int i, pending;
1869
1870 if (!chip->irq_pending_warned) {
1871 printk(KERN_WARNING
1872 "hda-intel: IRQ timing workaround is activated "
1873 "for card #%d. Suggest a bigger bdl_pos_adj.\n",
1874 chip->card->number);
1875 chip->irq_pending_warned = 1;
1876 }
1877
1878 for (;;) {
1879 pending = 0;
1880 spin_lock_irq(&chip->reg_lock);
1881 for (i = 0; i < chip->num_streams; i++) {
1882 struct azx_dev *azx_dev = &chip->azx_dev[i];
1883 if (!azx_dev->irq_pending ||
1884 !azx_dev->substream ||
1885 !azx_dev->running)
1886 continue;
1887 if (azx_position_ok(chip, azx_dev)) {
1888 azx_dev->irq_pending = 0;
1889 spin_unlock(&chip->reg_lock);
1890 snd_pcm_period_elapsed(azx_dev->substream);
1891 spin_lock(&chip->reg_lock);
1892 } else
1893 pending++;
1894 }
1895 spin_unlock_irq(&chip->reg_lock);
1896 if (!pending)
1897 return;
1898 cond_resched();
1899 }
1900 }
1901
1902 /* clear irq_pending flags and assure no on-going workq */
1903 static void azx_clear_irq_pending(struct azx *chip)
1904 {
1905 int i;
1906
1907 spin_lock_irq(&chip->reg_lock);
1908 for (i = 0; i < chip->num_streams; i++)
1909 chip->azx_dev[i].irq_pending = 0;
1910 spin_unlock_irq(&chip->reg_lock);
1911 }
1912
1913 static struct snd_pcm_ops azx_pcm_ops = {
1914 .open = azx_pcm_open,
1915 .close = azx_pcm_close,
1916 .ioctl = snd_pcm_lib_ioctl,
1917 .hw_params = azx_pcm_hw_params,
1918 .hw_free = azx_pcm_hw_free,
1919 .prepare = azx_pcm_prepare,
1920 .trigger = azx_pcm_trigger,
1921 .pointer = azx_pcm_pointer,
1922 .page = snd_pcm_sgbuf_ops_page,
1923 };
1924
1925 static void azx_pcm_free(struct snd_pcm *pcm)
1926 {
1927 struct azx_pcm *apcm = pcm->private_data;
1928 if (apcm) {
1929 apcm->chip->pcm[pcm->device] = NULL;
1930 kfree(apcm);
1931 }
1932 }
1933
1934 static int
1935 azx_attach_pcm_stream(struct hda_bus *bus, struct hda_codec *codec,
1936 struct hda_pcm *cpcm)
1937 {
1938 struct azx *chip = bus->private_data;
1939 struct snd_pcm *pcm;
1940 struct azx_pcm *apcm;
1941 int pcm_dev = cpcm->device;
1942 int s, err;
1943
1944 if (pcm_dev >= AZX_MAX_PCMS) {
1945 snd_printk(KERN_ERR SFX "Invalid PCM device number %d\n",
1946 pcm_dev);
1947 return -EINVAL;
1948 }
1949 if (chip->pcm[pcm_dev]) {
1950 snd_printk(KERN_ERR SFX "PCM %d already exists\n", pcm_dev);
1951 return -EBUSY;
1952 }
1953 err = snd_pcm_new(chip->card, cpcm->name, pcm_dev,
1954 cpcm->stream[SNDRV_PCM_STREAM_PLAYBACK].substreams,
1955 cpcm->stream[SNDRV_PCM_STREAM_CAPTURE].substreams,
1956 &pcm);
1957 if (err < 0)
1958 return err;
1959 strlcpy(pcm->name, cpcm->name, sizeof(pcm->name));
1960 apcm = kzalloc(sizeof(*apcm), GFP_KERNEL);
1961 if (apcm == NULL)
1962 return -ENOMEM;
1963 apcm->chip = chip;
1964 apcm->codec = codec;
1965 pcm->private_data = apcm;
1966 pcm->private_free = azx_pcm_free;
1967 if (cpcm->pcm_type == HDA_PCM_TYPE_MODEM)
1968 pcm->dev_class = SNDRV_PCM_CLASS_MODEM;
1969 chip->pcm[pcm_dev] = pcm;
1970 cpcm->pcm = pcm;
1971 for (s = 0; s < 2; s++) {
1972 apcm->hinfo[s] = &cpcm->stream[s];
1973 if (cpcm->stream[s].substreams)
1974 snd_pcm_set_ops(pcm, s, &azx_pcm_ops);
1975 }
1976 /* buffer pre-allocation */
1977 snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
1978 snd_dma_pci_data(chip->pci),
1979 1024 * 64, 32 * 1024 * 1024);
1980 return 0;
1981 }
1982
1983 /*
1984 * mixer creation - all stuff is implemented in hda module
1985 */
1986 static int __devinit azx_mixer_create(struct azx *chip)
1987 {
1988 return snd_hda_build_controls(chip->bus);
1989 }
1990
1991
1992 /*
1993 * initialize SD streams
1994 */
1995 static int __devinit azx_init_stream(struct azx *chip)
1996 {
1997 int i;
1998
1999 /* initialize each stream (aka device)
2000 * assign the starting bdl address to each stream (device)
2001 * and initialize
2002 */
2003 for (i = 0; i < chip->num_streams; i++) {
2004 struct azx_dev *azx_dev = &chip->azx_dev[i];
2005 azx_dev->posbuf = (u32 __iomem *)(chip->posbuf.area + i * 8);
2006 /* offset: SDI0=0x80, SDI1=0xa0, ... SDO3=0x160 */
2007 azx_dev->sd_addr = chip->remap_addr + (0x20 * i + 0x80);
2008 /* int mask: SDI0=0x01, SDI1=0x02, ... SDO3=0x80 */
2009 azx_dev->sd_int_sta_mask = 1 << i;
2010 /* stream tag: must be non-zero and unique */
2011 azx_dev->index = i;
2012 azx_dev->stream_tag = i + 1;
2013 }
2014
2015 return 0;
2016 }
2017
2018 static int azx_acquire_irq(struct azx *chip, int do_disconnect)
2019 {
2020 if (request_irq(chip->pci->irq, azx_interrupt,
2021 chip->msi ? 0 : IRQF_SHARED,
2022 "HDA Intel", chip)) {
2023 printk(KERN_ERR "hda-intel: unable to grab IRQ %d, "
2024 "disabling device\n", chip->pci->irq);
2025 if (do_disconnect)
2026 snd_card_disconnect(chip->card);
2027 return -1;
2028 }
2029 chip->irq = chip->pci->irq;
2030 pci_intx(chip->pci, !chip->msi);
2031 return 0;
2032 }
2033
2034
2035 static void azx_stop_chip(struct azx *chip)
2036 {
2037 if (!chip->initialized)
2038 return;
2039
2040 /* disable interrupts */
2041 azx_int_disable(chip);
2042 azx_int_clear(chip);
2043
2044 /* disable CORB/RIRB */
2045 azx_free_cmd_io(chip);
2046
2047 /* disable position buffer */
2048 azx_writel(chip, DPLBASE, 0);
2049 azx_writel(chip, DPUBASE, 0);
2050
2051 chip->initialized = 0;
2052 }
2053
2054 #ifdef CONFIG_SND_HDA_POWER_SAVE
2055 /* power-up/down the controller */
2056 static void azx_power_notify(struct hda_bus *bus)
2057 {
2058 struct azx *chip = bus->private_data;
2059 struct hda_codec *c;
2060 int power_on = 0;
2061
2062 list_for_each_entry(c, &bus->codec_list, list) {
2063 if (c->power_on) {
2064 power_on = 1;
2065 break;
2066 }
2067 }
2068 if (power_on)
2069 azx_init_chip(chip);
2070 else if (chip->running && power_save_controller)
2071 azx_stop_chip(chip);
2072 }
2073 #endif /* CONFIG_SND_HDA_POWER_SAVE */
2074
2075 #ifdef CONFIG_PM
2076 /*
2077 * power management
2078 */
2079
2080 static int snd_hda_codecs_inuse(struct hda_bus *bus)
2081 {
2082 struct hda_codec *codec;
2083
2084 list_for_each_entry(codec, &bus->codec_list, list) {
2085 if (snd_hda_codec_needs_resume(codec))
2086 return 1;
2087 }
2088 return 0;
2089 }
2090
2091 static int azx_suspend(struct pci_dev *pci, pm_message_t state)
2092 {
2093 struct snd_card *card = pci_get_drvdata(pci);
2094 struct azx *chip = card->private_data;
2095 int i;
2096
2097 snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
2098 azx_clear_irq_pending(chip);
2099 for (i = 0; i < AZX_MAX_PCMS; i++)
2100 snd_pcm_suspend_all(chip->pcm[i]);
2101 if (chip->initialized)
2102 snd_hda_suspend(chip->bus);
2103 azx_stop_chip(chip);
2104 if (chip->irq >= 0) {
2105 free_irq(chip->irq, chip);
2106 chip->irq = -1;
2107 }
2108 if (chip->msi)
2109 pci_disable_msi(chip->pci);
2110 pci_disable_device(pci);
2111 pci_save_state(pci);
2112 pci_set_power_state(pci, pci_choose_state(pci, state));
2113 return 0;
2114 }
2115
2116 static int azx_resume(struct pci_dev *pci)
2117 {
2118 struct snd_card *card = pci_get_drvdata(pci);
2119 struct azx *chip = card->private_data;
2120
2121 pci_set_power_state(pci, PCI_D0);
2122 pci_restore_state(pci);
2123 if (pci_enable_device(pci) < 0) {
2124 printk(KERN_ERR "hda-intel: pci_enable_device failed, "
2125 "disabling device\n");
2126 snd_card_disconnect(card);
2127 return -EIO;
2128 }
2129 pci_set_master(pci);
2130 if (chip->msi)
2131 if (pci_enable_msi(pci) < 0)
2132 chip->msi = 0;
2133 if (azx_acquire_irq(chip, 1) < 0)
2134 return -EIO;
2135 azx_init_pci(chip);
2136
2137 if (snd_hda_codecs_inuse(chip->bus))
2138 azx_init_chip(chip);
2139
2140 snd_hda_resume(chip->bus);
2141 snd_power_change_state(card, SNDRV_CTL_POWER_D0);
2142 return 0;
2143 }
2144 #endif /* CONFIG_PM */
2145
2146
2147 /*
2148 * reboot notifier for hang-up problem at power-down
2149 */
2150 static int azx_halt(struct notifier_block *nb, unsigned long event, void *buf)
2151 {
2152 struct azx *chip = container_of(nb, struct azx, reboot_notifier);
2153 azx_stop_chip(chip);
2154 return NOTIFY_OK;
2155 }
2156
2157 static void azx_notifier_register(struct azx *chip)
2158 {
2159 chip->reboot_notifier.notifier_call = azx_halt;
2160 register_reboot_notifier(&chip->reboot_notifier);
2161 }
2162
2163 static void azx_notifier_unregister(struct azx *chip)
2164 {
2165 if (chip->reboot_notifier.notifier_call)
2166 unregister_reboot_notifier(&chip->reboot_notifier);
2167 }
2168
2169 /*
2170 * destructor
2171 */
2172 static int azx_free(struct azx *chip)
2173 {
2174 int i;
2175
2176 azx_notifier_unregister(chip);
2177
2178 if (chip->initialized) {
2179 azx_clear_irq_pending(chip);
2180 for (i = 0; i < chip->num_streams; i++)
2181 azx_stream_stop(chip, &chip->azx_dev[i]);
2182 azx_stop_chip(chip);
2183 }
2184
2185 if (chip->irq >= 0)
2186 free_irq(chip->irq, (void*)chip);
2187 if (chip->msi)
2188 pci_disable_msi(chip->pci);
2189 if (chip->remap_addr)
2190 iounmap(chip->remap_addr);
2191
2192 if (chip->azx_dev) {
2193 for (i = 0; i < chip->num_streams; i++)
2194 if (chip->azx_dev[i].bdl.area)
2195 snd_dma_free_pages(&chip->azx_dev[i].bdl);
2196 }
2197 if (chip->rb.area)
2198 snd_dma_free_pages(&chip->rb);
2199 if (chip->posbuf.area)
2200 snd_dma_free_pages(&chip->posbuf);
2201 pci_release_regions(chip->pci);
2202 pci_disable_device(chip->pci);
2203 kfree(chip->azx_dev);
2204 kfree(chip);
2205
2206 return 0;
2207 }
2208
2209 static int azx_dev_free(struct snd_device *device)
2210 {
2211 return azx_free(device->device_data);
2212 }
2213
2214 /*
2215 * white/black-listing for position_fix
2216 */
2217 static struct snd_pci_quirk position_fix_list[] __devinitdata = {
2218 SND_PCI_QUIRK(0x1028, 0x01cc, "Dell D820", POS_FIX_LPIB),
2219 SND_PCI_QUIRK(0x1028, 0x01de, "Dell Precision 390", POS_FIX_LPIB),
2220 SND_PCI_QUIRK(0x1043, 0x813d, "ASUS P5AD2", POS_FIX_LPIB),
2221 {}
2222 };
2223
2224 static int __devinit check_position_fix(struct azx *chip, int fix)
2225 {
2226 const struct snd_pci_quirk *q;
2227
2228 switch (fix) {
2229 case POS_FIX_LPIB:
2230 case POS_FIX_POSBUF:
2231 return fix;
2232 }
2233
2234 /* Check VIA/ATI HD Audio Controller exist */
2235 switch (chip->driver_type) {
2236 case AZX_DRIVER_VIA:
2237 case AZX_DRIVER_ATI:
2238 chip->via_dmapos_patch = 1;
2239 /* Use link position directly, avoid any transfer problem. */
2240 return POS_FIX_LPIB;
2241 }
2242 chip->via_dmapos_patch = 0;
2243
2244 q = snd_pci_quirk_lookup(chip->pci, position_fix_list);
2245 if (q) {
2246 printk(KERN_INFO
2247 "hda_intel: position_fix set to %d "
2248 "for device %04x:%04x\n",
2249 q->value, q->subvendor, q->subdevice);
2250 return q->value;
2251 }
2252 return POS_FIX_AUTO;
2253 }
2254
2255 /*
2256 * black-lists for probe_mask
2257 */
2258 static struct snd_pci_quirk probe_mask_list[] __devinitdata = {
2259 /* Thinkpad often breaks the controller communication when accessing
2260 * to the non-working (or non-existing) modem codec slot.
2261 */
2262 SND_PCI_QUIRK(0x1014, 0x05b7, "Thinkpad Z60", 0x01),
2263 SND_PCI_QUIRK(0x17aa, 0x2010, "Thinkpad X/T/R60", 0x01),
2264 SND_PCI_QUIRK(0x17aa, 0x20ac, "Thinkpad X/T/R61", 0x01),
2265 /* broken BIOS */
2266 SND_PCI_QUIRK(0x1028, 0x20ac, "Dell Studio Desktop", 0x01),
2267 /* including bogus ALC268 in slot#2 that conflicts with ALC888 */
2268 SND_PCI_QUIRK(0x17c0, 0x4085, "Medion MD96630", 0x01),
2269 /* forced codec slots */
2270 SND_PCI_QUIRK(0x1043, 0x1262, "ASUS W5Fm", 0x103),
2271 SND_PCI_QUIRK(0x1046, 0x1262, "ASUS W5F", 0x103),
2272 {}
2273 };
2274
2275 #define AZX_FORCE_CODEC_MASK 0x100
2276
2277 static void __devinit check_probe_mask(struct azx *chip, int dev)
2278 {
2279 const struct snd_pci_quirk *q;
2280
2281 chip->codec_probe_mask = probe_mask[dev];
2282 if (chip->codec_probe_mask == -1) {
2283 q = snd_pci_quirk_lookup(chip->pci, probe_mask_list);
2284 if (q) {
2285 printk(KERN_INFO
2286 "hda_intel: probe_mask set to 0x%x "
2287 "for device %04x:%04x\n",
2288 q->value, q->subvendor, q->subdevice);
2289 chip->codec_probe_mask = q->value;
2290 }
2291 }
2292
2293 /* check forced option */
2294 if (chip->codec_probe_mask != -1 &&
2295 (chip->codec_probe_mask & AZX_FORCE_CODEC_MASK)) {
2296 chip->codec_mask = chip->codec_probe_mask & 0xff;
2297 printk(KERN_INFO "hda_intel: codec_mask forced to 0x%x\n",
2298 chip->codec_mask);
2299 }
2300 }
2301
2302 /*
2303 * white-list for enable_msi
2304 */
2305 static struct snd_pci_quirk msi_white_list[] __devinitdata = {
2306 SND_PCI_QUIRK(0x103c, 0x30f7, "HP Pavilion dv4t-1300", 1),
2307 SND_PCI_QUIRK(0x103c, 0x3607, "HP Compa CQ40", 1),
2308 {}
2309 };
2310
2311 static void __devinit check_msi(struct azx *chip)
2312 {
2313 const struct snd_pci_quirk *q;
2314
2315 chip->msi = enable_msi;
2316 if (chip->msi)
2317 return;
2318 q = snd_pci_quirk_lookup(chip->pci, msi_white_list);
2319 if (q) {
2320 printk(KERN_INFO
2321 "hda_intel: msi for device %04x:%04x set to %d\n",
2322 q->subvendor, q->subdevice, q->value);
2323 chip->msi = q->value;
2324 }
2325 }
2326
2327
2328 /*
2329 * constructor
2330 */
2331 static int __devinit azx_create(struct snd_card *card, struct pci_dev *pci,
2332 int dev, int driver_type,
2333 struct azx **rchip)
2334 {
2335 struct azx *chip;
2336 int i, err;
2337 unsigned short gcap;
2338 static struct snd_device_ops ops = {
2339 .dev_free = azx_dev_free,
2340 };
2341
2342 *rchip = NULL;
2343
2344 err = pci_enable_device(pci);
2345 if (err < 0)
2346 return err;
2347
2348 chip = kzalloc(sizeof(*chip), GFP_KERNEL);
2349 if (!chip) {
2350 snd_printk(KERN_ERR SFX "cannot allocate chip\n");
2351 pci_disable_device(pci);
2352 return -ENOMEM;
2353 }
2354
2355 spin_lock_init(&chip->reg_lock);
2356 mutex_init(&chip->open_mutex);
2357 chip->card = card;
2358 chip->pci = pci;
2359 chip->irq = -1;
2360 chip->driver_type = driver_type;
2361 check_msi(chip);
2362 chip->dev_index = dev;
2363 INIT_WORK(&chip->irq_pending_work, azx_irq_pending_work);
2364
2365 chip->position_fix = check_position_fix(chip, position_fix[dev]);
2366 check_probe_mask(chip, dev);
2367
2368 chip->single_cmd = single_cmd;
2369
2370 if (bdl_pos_adj[dev] < 0) {
2371 switch (chip->driver_type) {
2372 case AZX_DRIVER_ICH:
2373 bdl_pos_adj[dev] = 1;
2374 break;
2375 default:
2376 bdl_pos_adj[dev] = 32;
2377 break;
2378 }
2379 }
2380
2381 #if BITS_PER_LONG != 64
2382 /* Fix up base address on ULI M5461 */
2383 if (chip->driver_type == AZX_DRIVER_ULI) {
2384 u16 tmp3;
2385 pci_read_config_word(pci, 0x40, &tmp3);
2386 pci_write_config_word(pci, 0x40, tmp3 | 0x10);
2387 pci_write_config_dword(pci, PCI_BASE_ADDRESS_1, 0);
2388 }
2389 #endif
2390
2391 err = pci_request_regions(pci, "ICH HD audio");
2392 if (err < 0) {
2393 kfree(chip);
2394 pci_disable_device(pci);
2395 return err;
2396 }
2397
2398 chip->addr = pci_resource_start(pci, 0);
2399 chip->remap_addr = pci_ioremap_bar(pci, 0);
2400 if (chip->remap_addr == NULL) {
2401 snd_printk(KERN_ERR SFX "ioremap error\n");
2402 err = -ENXIO;
2403 goto errout;
2404 }
2405
2406 if (chip->msi)
2407 if (pci_enable_msi(pci) < 0)
2408 chip->msi = 0;
2409
2410 if (azx_acquire_irq(chip, 0) < 0) {
2411 err = -EBUSY;
2412 goto errout;
2413 }
2414
2415 pci_set_master(pci);
2416 synchronize_irq(chip->irq);
2417
2418 gcap = azx_readw(chip, GCAP);
2419 snd_printdd(SFX "chipset global capabilities = 0x%x\n", gcap);
2420
2421 /* disable SB600 64bit support for safety */
2422 if ((chip->driver_type == AZX_DRIVER_ATI) ||
2423 (chip->driver_type == AZX_DRIVER_ATIHDMI)) {
2424 struct pci_dev *p_smbus;
2425 p_smbus = pci_get_device(PCI_VENDOR_ID_ATI,
2426 PCI_DEVICE_ID_ATI_SBX00_SMBUS,
2427 NULL);
2428 if (p_smbus) {
2429 if (p_smbus->revision < 0x30)
2430 gcap &= ~ICH6_GCAP_64OK;
2431 pci_dev_put(p_smbus);
2432 }
2433 }
2434
2435 /* allow 64bit DMA address if supported by H/W */
2436 if ((gcap & ICH6_GCAP_64OK) && !pci_set_dma_mask(pci, DMA_BIT_MASK(64)))
2437 pci_set_consistent_dma_mask(pci, DMA_BIT_MASK(64));
2438 else {
2439 pci_set_dma_mask(pci, DMA_BIT_MASK(32));
2440 pci_set_consistent_dma_mask(pci, DMA_BIT_MASK(32));
2441 }
2442
2443 /* read number of streams from GCAP register instead of using
2444 * hardcoded value
2445 */
2446 chip->capture_streams = (gcap >> 8) & 0x0f;
2447 chip->playback_streams = (gcap >> 12) & 0x0f;
2448 if (!chip->playback_streams && !chip->capture_streams) {
2449 /* gcap didn't give any info, switching to old method */
2450
2451 switch (chip->driver_type) {
2452 case AZX_DRIVER_ULI:
2453 chip->playback_streams = ULI_NUM_PLAYBACK;
2454 chip->capture_streams = ULI_NUM_CAPTURE;
2455 break;
2456 case AZX_DRIVER_ATIHDMI:
2457 chip->playback_streams = ATIHDMI_NUM_PLAYBACK;
2458 chip->capture_streams = ATIHDMI_NUM_CAPTURE;
2459 break;
2460 case AZX_DRIVER_GENERIC:
2461 default:
2462 chip->playback_streams = ICH6_NUM_PLAYBACK;
2463 chip->capture_streams = ICH6_NUM_CAPTURE;
2464 break;
2465 }
2466 }
2467 chip->capture_index_offset = 0;
2468 chip->playback_index_offset = chip->capture_streams;
2469 chip->num_streams = chip->playback_streams + chip->capture_streams;
2470 chip->azx_dev = kcalloc(chip->num_streams, sizeof(*chip->azx_dev),
2471 GFP_KERNEL);
2472 if (!chip->azx_dev) {
2473 snd_printk(KERN_ERR SFX "cannot malloc azx_dev\n");
2474 goto errout;
2475 }
2476
2477 for (i = 0; i < chip->num_streams; i++) {
2478 /* allocate memory for the BDL for each stream */
2479 err = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV,
2480 snd_dma_pci_data(chip->pci),
2481 BDL_SIZE, &chip->azx_dev[i].bdl);
2482 if (err < 0) {
2483 snd_printk(KERN_ERR SFX "cannot allocate BDL\n");
2484 goto errout;
2485 }
2486 }
2487 /* allocate memory for the position buffer */
2488 err = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV,
2489 snd_dma_pci_data(chip->pci),
2490 chip->num_streams * 8, &chip->posbuf);
2491 if (err < 0) {
2492 snd_printk(KERN_ERR SFX "cannot allocate posbuf\n");
2493 goto errout;
2494 }
2495 /* allocate CORB/RIRB */
2496 err = azx_alloc_cmd_io(chip);
2497 if (err < 0)
2498 goto errout;
2499
2500 /* initialize streams */
2501 azx_init_stream(chip);
2502
2503 /* initialize chip */
2504 azx_init_pci(chip);
2505 azx_init_chip(chip);
2506
2507 /* codec detection */
2508 if (!chip->codec_mask) {
2509 snd_printk(KERN_ERR SFX "no codecs found!\n");
2510 err = -ENODEV;
2511 goto errout;
2512 }
2513
2514 err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
2515 if (err <0) {
2516 snd_printk(KERN_ERR SFX "Error creating device [card]!\n");
2517 goto errout;
2518 }
2519
2520 strcpy(card->driver, "HDA-Intel");
2521 strlcpy(card->shortname, driver_short_names[chip->driver_type],
2522 sizeof(card->shortname));
2523 snprintf(card->longname, sizeof(card->longname),
2524 "%s at 0x%lx irq %i",
2525 card->shortname, chip->addr, chip->irq);
2526
2527 *rchip = chip;
2528 return 0;
2529
2530 errout:
2531 azx_free(chip);
2532 return err;
2533 }
2534
2535 static void power_down_all_codecs(struct azx *chip)
2536 {
2537 #ifdef CONFIG_SND_HDA_POWER_SAVE
2538 /* The codecs were powered up in snd_hda_codec_new().
2539 * Now all initialization done, so turn them down if possible
2540 */
2541 struct hda_codec *codec;
2542 list_for_each_entry(codec, &chip->bus->codec_list, list) {
2543 snd_hda_power_down(codec);
2544 }
2545 #endif
2546 }
2547
2548 static int __devinit azx_probe(struct pci_dev *pci,
2549 const struct pci_device_id *pci_id)
2550 {
2551 static int dev;
2552 struct snd_card *card;
2553 struct azx *chip;
2554 int err;
2555
2556 if (dev >= SNDRV_CARDS)
2557 return -ENODEV;
2558 if (!enable[dev]) {
2559 dev++;
2560 return -ENOENT;
2561 }
2562
2563 err = snd_card_create(index[dev], id[dev], THIS_MODULE, 0, &card);
2564 if (err < 0) {
2565 snd_printk(KERN_ERR SFX "Error creating card!\n");
2566 return err;
2567 }
2568
2569 /* set this here since it's referred in snd_hda_load_patch() */
2570 snd_card_set_dev(card, &pci->dev);
2571
2572 err = azx_create(card, pci, dev, pci_id->driver_data, &chip);
2573 if (err < 0)
2574 goto out_free;
2575 card->private_data = chip;
2576
2577 /* create codec instances */
2578 err = azx_codec_create(chip, model[dev]);
2579 if (err < 0)
2580 goto out_free;
2581 #ifdef CONFIG_SND_HDA_PATCH_LOADER
2582 if (patch[dev]) {
2583 snd_printk(KERN_ERR SFX "Applying patch firmware '%s'\n",
2584 patch[dev]);
2585 err = snd_hda_load_patch(chip->bus, patch[dev]);
2586 if (err < 0)
2587 goto out_free;
2588 }
2589 #endif
2590 if (!probe_only[dev]) {
2591 err = azx_codec_configure(chip);
2592 if (err < 0)
2593 goto out_free;
2594 }
2595
2596 /* create PCM streams */
2597 err = snd_hda_build_pcms(chip->bus);
2598 if (err < 0)
2599 goto out_free;
2600
2601 /* create mixer controls */
2602 err = azx_mixer_create(chip);
2603 if (err < 0)
2604 goto out_free;
2605
2606 err = snd_card_register(card);
2607 if (err < 0)
2608 goto out_free;
2609
2610 pci_set_drvdata(pci, card);
2611 chip->running = 1;
2612 power_down_all_codecs(chip);
2613 azx_notifier_register(chip);
2614
2615 dev++;
2616 return err;
2617 out_free:
2618 snd_card_free(card);
2619 return err;
2620 }
2621
2622 static void __devexit azx_remove(struct pci_dev *pci)
2623 {
2624 snd_card_free(pci_get_drvdata(pci));
2625 pci_set_drvdata(pci, NULL);
2626 }
2627
2628 /* PCI IDs */
2629 static struct pci_device_id azx_ids[] = {
2630 /* ICH 6..10 */
2631 { PCI_DEVICE(0x8086, 0x2668), .driver_data = AZX_DRIVER_ICH },
2632 { PCI_DEVICE(0x8086, 0x27d8), .driver_data = AZX_DRIVER_ICH },
2633 { PCI_DEVICE(0x8086, 0x269a), .driver_data = AZX_DRIVER_ICH },
2634 { PCI_DEVICE(0x8086, 0x284b), .driver_data = AZX_DRIVER_ICH },
2635 { PCI_DEVICE(0x8086, 0x2911), .driver_data = AZX_DRIVER_ICH },
2636 { PCI_DEVICE(0x8086, 0x293e), .driver_data = AZX_DRIVER_ICH },
2637 { PCI_DEVICE(0x8086, 0x293f), .driver_data = AZX_DRIVER_ICH },
2638 { PCI_DEVICE(0x8086, 0x3a3e), .driver_data = AZX_DRIVER_ICH },
2639 { PCI_DEVICE(0x8086, 0x3a6e), .driver_data = AZX_DRIVER_ICH },
2640 /* PCH */
2641 { PCI_DEVICE(0x8086, 0x3b56), .driver_data = AZX_DRIVER_ICH },
2642 /* SCH */
2643 { PCI_DEVICE(0x8086, 0x811b), .driver_data = AZX_DRIVER_SCH },
2644 /* ATI SB 450/600 */
2645 { PCI_DEVICE(0x1002, 0x437b), .driver_data = AZX_DRIVER_ATI },
2646 { PCI_DEVICE(0x1002, 0x4383), .driver_data = AZX_DRIVER_ATI },
2647 /* ATI HDMI */
2648 { PCI_DEVICE(0x1002, 0x793b), .driver_data = AZX_DRIVER_ATIHDMI },
2649 { PCI_DEVICE(0x1002, 0x7919), .driver_data = AZX_DRIVER_ATIHDMI },
2650 { PCI_DEVICE(0x1002, 0x960f), .driver_data = AZX_DRIVER_ATIHDMI },
2651 { PCI_DEVICE(0x1002, 0x970f), .driver_data = AZX_DRIVER_ATIHDMI },
2652 { PCI_DEVICE(0x1002, 0xaa00), .driver_data = AZX_DRIVER_ATIHDMI },
2653 { PCI_DEVICE(0x1002, 0xaa08), .driver_data = AZX_DRIVER_ATIHDMI },
2654 { PCI_DEVICE(0x1002, 0xaa10), .driver_data = AZX_DRIVER_ATIHDMI },
2655 { PCI_DEVICE(0x1002, 0xaa18), .driver_data = AZX_DRIVER_ATIHDMI },
2656 { PCI_DEVICE(0x1002, 0xaa20), .driver_data = AZX_DRIVER_ATIHDMI },
2657 { PCI_DEVICE(0x1002, 0xaa28), .driver_data = AZX_DRIVER_ATIHDMI },
2658 { PCI_DEVICE(0x1002, 0xaa30), .driver_data = AZX_DRIVER_ATIHDMI },
2659 { PCI_DEVICE(0x1002, 0xaa38), .driver_data = AZX_DRIVER_ATIHDMI },
2660 { PCI_DEVICE(0x1002, 0xaa40), .driver_data = AZX_DRIVER_ATIHDMI },
2661 { PCI_DEVICE(0x1002, 0xaa48), .driver_data = AZX_DRIVER_ATIHDMI },
2662 /* VIA VT8251/VT8237A */
2663 { PCI_DEVICE(0x1106, 0x3288), .driver_data = AZX_DRIVER_VIA },
2664 /* SIS966 */
2665 { PCI_DEVICE(0x1039, 0x7502), .driver_data = AZX_DRIVER_SIS },
2666 /* ULI M5461 */
2667 { PCI_DEVICE(0x10b9, 0x5461), .driver_data = AZX_DRIVER_ULI },
2668 /* NVIDIA MCP */
2669 { PCI_DEVICE(0x10de, 0x026c), .driver_data = AZX_DRIVER_NVIDIA },
2670 { PCI_DEVICE(0x10de, 0x0371), .driver_data = AZX_DRIVER_NVIDIA },
2671 { PCI_DEVICE(0x10de, 0x03e4), .driver_data = AZX_DRIVER_NVIDIA },
2672 { PCI_DEVICE(0x10de, 0x03f0), .driver_data = AZX_DRIVER_NVIDIA },
2673 { PCI_DEVICE(0x10de, 0x044a), .driver_data = AZX_DRIVER_NVIDIA },
2674 { PCI_DEVICE(0x10de, 0x044b), .driver_data = AZX_DRIVER_NVIDIA },
2675 { PCI_DEVICE(0x10de, 0x055c), .driver_data = AZX_DRIVER_NVIDIA },
2676 { PCI_DEVICE(0x10de, 0x055d), .driver_data = AZX_DRIVER_NVIDIA },
2677 { PCI_DEVICE(0x10de, 0x0590), .driver_data = AZX_DRIVER_NVIDIA },
2678 { PCI_DEVICE(0x10de, 0x0774), .driver_data = AZX_DRIVER_NVIDIA },
2679 { PCI_DEVICE(0x10de, 0x0775), .driver_data = AZX_DRIVER_NVIDIA },
2680 { PCI_DEVICE(0x10de, 0x0776), .driver_data = AZX_DRIVER_NVIDIA },
2681 { PCI_DEVICE(0x10de, 0x0777), .driver_data = AZX_DRIVER_NVIDIA },
2682 { PCI_DEVICE(0x10de, 0x07fc), .driver_data = AZX_DRIVER_NVIDIA },
2683 { PCI_DEVICE(0x10de, 0x07fd), .driver_data = AZX_DRIVER_NVIDIA },
2684 { PCI_DEVICE(0x10de, 0x0ac0), .driver_data = AZX_DRIVER_NVIDIA },
2685 { PCI_DEVICE(0x10de, 0x0ac1), .driver_data = AZX_DRIVER_NVIDIA },
2686 { PCI_DEVICE(0x10de, 0x0ac2), .driver_data = AZX_DRIVER_NVIDIA },
2687 { PCI_DEVICE(0x10de, 0x0ac3), .driver_data = AZX_DRIVER_NVIDIA },
2688 { PCI_DEVICE(0x10de, 0x0d94), .driver_data = AZX_DRIVER_NVIDIA },
2689 { PCI_DEVICE(0x10de, 0x0d95), .driver_data = AZX_DRIVER_NVIDIA },
2690 { PCI_DEVICE(0x10de, 0x0d96), .driver_data = AZX_DRIVER_NVIDIA },
2691 { PCI_DEVICE(0x10de, 0x0d97), .driver_data = AZX_DRIVER_NVIDIA },
2692 /* Teradici */
2693 { PCI_DEVICE(0x6549, 0x1200), .driver_data = AZX_DRIVER_TERA },
2694 /* Creative X-Fi (CA0110-IBG) */
2695 #if !defined(CONFIG_SND_CTXFI) && !defined(CONFIG_SND_CTXFI_MODULE)
2696 /* the following entry conflicts with snd-ctxfi driver,
2697 * as ctxfi driver mutates from HD-audio to native mode with
2698 * a special command sequence.
2699 */
2700 { PCI_DEVICE(PCI_VENDOR_ID_CREATIVE, PCI_ANY_ID),
2701 .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2702 .class_mask = 0xffffff,
2703 .driver_data = AZX_DRIVER_GENERIC },
2704 #else
2705 /* this entry seems still valid -- i.e. without emu20kx chip */
2706 { PCI_DEVICE(0x1102, 0x0009), .driver_data = AZX_DRIVER_GENERIC },
2707 #endif
2708 /* AMD/ATI Generic, PCI class code and Vendor ID for HD Audio */
2709 { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_ANY_ID),
2710 .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2711 .class_mask = 0xffffff,
2712 .driver_data = AZX_DRIVER_GENERIC },
2713 { PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_ANY_ID),
2714 .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2715 .class_mask = 0xffffff,
2716 .driver_data = AZX_DRIVER_GENERIC },
2717 { 0, }
2718 };
2719 MODULE_DEVICE_TABLE(pci, azx_ids);
2720
2721 /* pci_driver definition */
2722 static struct pci_driver driver = {
2723 .name = "HDA Intel",
2724 .id_table = azx_ids,
2725 .probe = azx_probe,
2726 .remove = __devexit_p(azx_remove),
2727 #ifdef CONFIG_PM
2728 .suspend = azx_suspend,
2729 .resume = azx_resume,
2730 #endif
2731 };
2732
2733 static int __init alsa_card_azx_init(void)
2734 {
2735 return pci_register_driver(&driver);
2736 }
2737
2738 static void __exit alsa_card_azx_exit(void)
2739 {
2740 pci_unregister_driver(&driver);
2741 }
2742
2743 module_init(alsa_card_azx_init)
2744 module_exit(alsa_card_azx_exit)
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