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watchdog: sch56xx: Remove unnecessary checks for register changes
[linux-2.6/libata-dev.git] / sound / pci / hda / hda_intel.c
blob2b6392be451c688830cf9d42e346d0eee61ac1dc
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 <linux/delay.h>
38 #include <linux/interrupt.h>
39 #include <linux/kernel.h>
40 #include <linux/module.h>
41 #include <linux/dma-mapping.h>
42 #include <linux/moduleparam.h>
43 #include <linux/init.h>
44 #include <linux/slab.h>
45 #include <linux/pci.h>
46 #include <linux/mutex.h>
47 #include <linux/reboot.h>
48 #include <linux/io.h>
49 #ifdef CONFIG_X86
50 /* for snoop control */
51 #include <asm/pgtable.h>
52 #include <asm/cacheflush.h>
53 #endif
54 #include <sound/core.h>
55 #include <sound/initval.h>
56 #include <linux/vgaarb.h>
57 #include <linux/vga_switcheroo.h>
58 #include "hda_codec.h"
59
60
61 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
62 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
63 static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
64 static char *model[SNDRV_CARDS];
65 static int position_fix[SNDRV_CARDS];
66 static int bdl_pos_adj[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS-1)] = -1};
67 static int probe_mask[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS-1)] = -1};
68 static int probe_only[SNDRV_CARDS];
69 static bool single_cmd;
70 static int enable_msi = -1;
71 #ifdef CONFIG_SND_HDA_PATCH_LOADER
72 static char *patch[SNDRV_CARDS];
73 #endif
74 #ifdef CONFIG_SND_HDA_INPUT_BEEP
75 static int beep_mode[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS-1)] =
76 CONFIG_SND_HDA_INPUT_BEEP_MODE};
77 #endif
78
79 module_param_array(index, int, NULL, 0444);
80 MODULE_PARM_DESC(index, "Index value for Intel HD audio interface.");
81 module_param_array(id, charp, NULL, 0444);
82 MODULE_PARM_DESC(id, "ID string for Intel HD audio interface.");
83 module_param_array(enable, bool, NULL, 0444);
84 MODULE_PARM_DESC(enable, "Enable Intel HD audio interface.");
85 module_param_array(model, charp, NULL, 0444);
86 MODULE_PARM_DESC(model, "Use the given board model.");
87 module_param_array(position_fix, int, NULL, 0444);
88 MODULE_PARM_DESC(position_fix, "DMA pointer read method."
89 "(0 = auto, 1 = LPIB, 2 = POSBUF, 3 = VIACOMBO, 4 = COMBO).");
90 module_param_array(bdl_pos_adj, int, NULL, 0644);
91 MODULE_PARM_DESC(bdl_pos_adj, "BDL position adjustment offset.");
92 module_param_array(probe_mask, int, NULL, 0444);
93 MODULE_PARM_DESC(probe_mask, "Bitmask to probe codecs (default = -1).");
94 module_param_array(probe_only, int, NULL, 0444);
95 MODULE_PARM_DESC(probe_only, "Only probing and no codec initialization.");
96 module_param(single_cmd, bool, 0444);
97 MODULE_PARM_DESC(single_cmd, "Use single command to communicate with codecs "
98 "(for debugging only).");
99 module_param(enable_msi, bint, 0444);
100 MODULE_PARM_DESC(enable_msi, "Enable Message Signaled Interrupt (MSI)");
101 #ifdef CONFIG_SND_HDA_PATCH_LOADER
102 module_param_array(patch, charp, NULL, 0444);
103 MODULE_PARM_DESC(patch, "Patch file for Intel HD audio interface.");
104 #endif
105 #ifdef CONFIG_SND_HDA_INPUT_BEEP
106 module_param_array(beep_mode, int, NULL, 0444);
107 MODULE_PARM_DESC(beep_mode, "Select HDA Beep registration mode "
108 "(0=off, 1=on, 2=mute switch on/off) (default=1).");
109 #endif
110
111 #ifdef CONFIG_SND_HDA_POWER_SAVE
112 static int power_save = CONFIG_SND_HDA_POWER_SAVE_DEFAULT;
113 module_param(power_save, int, 0644);
114 MODULE_PARM_DESC(power_save, "Automatic power-saving timeout "
115 "(in second, 0 = disable).");
116
117 /* reset the HD-audio controller in power save mode.
118 * this may give more power-saving, but will take longer time to
119 * wake up.
120 */
121 static bool power_save_controller = 1;
122 module_param(power_save_controller, bool, 0644);
123 MODULE_PARM_DESC(power_save_controller, "Reset controller in power save mode.");
124 #endif
125
126 static int align_buffer_size = -1;
127 module_param(align_buffer_size, bint, 0644);
128 MODULE_PARM_DESC(align_buffer_size,
129 "Force buffer and period sizes to be multiple of 128 bytes.");
130
131 #ifdef CONFIG_X86
132 static bool hda_snoop = true;
133 module_param_named(snoop, hda_snoop, bool, 0444);
134 MODULE_PARM_DESC(snoop, "Enable/disable snooping");
135 #define azx_snoop(chip) (chip)->snoop
136 #else
137 #define hda_snoop true
138 #define azx_snoop(chip) true
139 #endif
140
141
142 MODULE_LICENSE("GPL");
143 MODULE_SUPPORTED_DEVICE("{{Intel, ICH6},"
144 "{Intel, ICH6M},"
145 "{Intel, ICH7},"
146 "{Intel, ESB2},"
147 "{Intel, ICH8},"
148 "{Intel, ICH9},"
149 "{Intel, ICH10},"
150 "{Intel, PCH},"
151 "{Intel, CPT},"
152 "{Intel, PPT},"
153 "{Intel, LPT},"
154 "{Intel, PBG},"
155 "{Intel, SCH},"
156 "{ATI, SB450},"
157 "{ATI, SB600},"
158 "{ATI, RS600},"
159 "{ATI, RS690},"
160 "{ATI, RS780},"
161 "{ATI, R600},"
162 "{ATI, RV630},"
163 "{ATI, RV610},"
164 "{ATI, RV670},"
165 "{ATI, RV635},"
166 "{ATI, RV620},"
167 "{ATI, RV770},"
168 "{VIA, VT8251},"
169 "{VIA, VT8237A},"
170 "{SiS, SIS966},"
171 "{ULI, M5461}}");
172 MODULE_DESCRIPTION("Intel HDA driver");
173
174 #ifdef CONFIG_SND_VERBOSE_PRINTK
175 #define SFX /* nop */
176 #else
177 #define SFX "hda-intel: "
178 #endif
179
180 #if defined(CONFIG_PM) && defined(CONFIG_VGA_SWITCHEROO)
181 #ifdef CONFIG_SND_HDA_CODEC_HDMI
182 #define SUPPORT_VGA_SWITCHEROO
183 #endif
184 #endif
185
186
187 /*
188 * registers
189 */
190 #define ICH6_REG_GCAP 0x00
191 #define ICH6_GCAP_64OK (1 << 0) /* 64bit address support */
192 #define ICH6_GCAP_NSDO (3 << 1) /* # of serial data out signals */
193 #define ICH6_GCAP_BSS (31 << 3) /* # of bidirectional streams */
194 #define ICH6_GCAP_ISS (15 << 8) /* # of input streams */
195 #define ICH6_GCAP_OSS (15 << 12) /* # of output streams */
196 #define ICH6_REG_VMIN 0x02
197 #define ICH6_REG_VMAJ 0x03
198 #define ICH6_REG_OUTPAY 0x04
199 #define ICH6_REG_INPAY 0x06
200 #define ICH6_REG_GCTL 0x08
201 #define ICH6_GCTL_RESET (1 << 0) /* controller reset */
202 #define ICH6_GCTL_FCNTRL (1 << 1) /* flush control */
203 #define ICH6_GCTL_UNSOL (1 << 8) /* accept unsol. response enable */
204 #define ICH6_REG_WAKEEN 0x0c
205 #define ICH6_REG_STATESTS 0x0e
206 #define ICH6_REG_GSTS 0x10
207 #define ICH6_GSTS_FSTS (1 << 1) /* flush status */
208 #define ICH6_REG_INTCTL 0x20
209 #define ICH6_REG_INTSTS 0x24
210 #define ICH6_REG_WALLCLK 0x30 /* 24Mhz source */
211 #define ICH6_REG_OLD_SSYNC 0x34 /* SSYNC for old ICH */
212 #define ICH6_REG_SSYNC 0x38
213 #define ICH6_REG_CORBLBASE 0x40
214 #define ICH6_REG_CORBUBASE 0x44
215 #define ICH6_REG_CORBWP 0x48
216 #define ICH6_REG_CORBRP 0x4a
217 #define ICH6_CORBRP_RST (1 << 15) /* read pointer reset */
218 #define ICH6_REG_CORBCTL 0x4c
219 #define ICH6_CORBCTL_RUN (1 << 1) /* enable DMA */
220 #define ICH6_CORBCTL_CMEIE (1 << 0) /* enable memory error irq */
221 #define ICH6_REG_CORBSTS 0x4d
222 #define ICH6_CORBSTS_CMEI (1 << 0) /* memory error indication */
223 #define ICH6_REG_CORBSIZE 0x4e
224
225 #define ICH6_REG_RIRBLBASE 0x50
226 #define ICH6_REG_RIRBUBASE 0x54
227 #define ICH6_REG_RIRBWP 0x58
228 #define ICH6_RIRBWP_RST (1 << 15) /* write pointer reset */
229 #define ICH6_REG_RINTCNT 0x5a
230 #define ICH6_REG_RIRBCTL 0x5c
231 #define ICH6_RBCTL_IRQ_EN (1 << 0) /* enable IRQ */
232 #define ICH6_RBCTL_DMA_EN (1 << 1) /* enable DMA */
233 #define ICH6_RBCTL_OVERRUN_EN (1 << 2) /* enable overrun irq */
234 #define ICH6_REG_RIRBSTS 0x5d
235 #define ICH6_RBSTS_IRQ (1 << 0) /* response irq */
236 #define ICH6_RBSTS_OVERRUN (1 << 2) /* overrun irq */
237 #define ICH6_REG_RIRBSIZE 0x5e
238
239 #define ICH6_REG_IC 0x60
240 #define ICH6_REG_IR 0x64
241 #define ICH6_REG_IRS 0x68
242 #define ICH6_IRS_VALID (1<<1)
243 #define ICH6_IRS_BUSY (1<<0)
244
245 #define ICH6_REG_DPLBASE 0x70
246 #define ICH6_REG_DPUBASE 0x74
247 #define ICH6_DPLBASE_ENABLE 0x1 /* Enable position buffer */
248
249 /* SD offset: SDI0=0x80, SDI1=0xa0, ... SDO3=0x160 */
250 enum { SDI0, SDI1, SDI2, SDI3, SDO0, SDO1, SDO2, SDO3 };
251
252 /* stream register offsets from stream base */
253 #define ICH6_REG_SD_CTL 0x00
254 #define ICH6_REG_SD_STS 0x03
255 #define ICH6_REG_SD_LPIB 0x04
256 #define ICH6_REG_SD_CBL 0x08
257 #define ICH6_REG_SD_LVI 0x0c
258 #define ICH6_REG_SD_FIFOW 0x0e
259 #define ICH6_REG_SD_FIFOSIZE 0x10
260 #define ICH6_REG_SD_FORMAT 0x12
261 #define ICH6_REG_SD_BDLPL 0x18
262 #define ICH6_REG_SD_BDLPU 0x1c
263
264 /* PCI space */
265 #define ICH6_PCIREG_TCSEL 0x44
266
267 /*
268 * other constants
269 */
270
271 /* max number of SDs */
272 /* ICH, ATI and VIA have 4 playback and 4 capture */
273 #define ICH6_NUM_CAPTURE 4
274 #define ICH6_NUM_PLAYBACK 4
275
276 /* ULI has 6 playback and 5 capture */
277 #define ULI_NUM_CAPTURE 5
278 #define ULI_NUM_PLAYBACK 6
279
280 /* ATI HDMI has 1 playback and 0 capture */
281 #define ATIHDMI_NUM_CAPTURE 0
282 #define ATIHDMI_NUM_PLAYBACK 1
283
284 /* TERA has 4 playback and 3 capture */
285 #define TERA_NUM_CAPTURE 3
286 #define TERA_NUM_PLAYBACK 4
287
288 /* this number is statically defined for simplicity */
289 #define MAX_AZX_DEV 16
290
291 /* max number of fragments - we may use more if allocating more pages for BDL */
292 #define BDL_SIZE 4096
293 #define AZX_MAX_BDL_ENTRIES (BDL_SIZE / 16)
294 #define AZX_MAX_FRAG 32
295 /* max buffer size - no h/w limit, you can increase as you like */
296 #define AZX_MAX_BUF_SIZE (1024*1024*1024)
297
298 /* RIRB int mask: overrun[2], response[0] */
299 #define RIRB_INT_RESPONSE 0x01
300 #define RIRB_INT_OVERRUN 0x04
301 #define RIRB_INT_MASK 0x05
302
303 /* STATESTS int mask: S3,SD2,SD1,SD0 */
304 #define AZX_MAX_CODECS 8
305 #define AZX_DEFAULT_CODECS 4
306 #define STATESTS_INT_MASK ((1 << AZX_MAX_CODECS) - 1)
307
308 /* SD_CTL bits */
309 #define SD_CTL_STREAM_RESET 0x01 /* stream reset bit */
310 #define SD_CTL_DMA_START 0x02 /* stream DMA start bit */
311 #define SD_CTL_STRIPE (3 << 16) /* stripe control */
312 #define SD_CTL_TRAFFIC_PRIO (1 << 18) /* traffic priority */
313 #define SD_CTL_DIR (1 << 19) /* bi-directional stream */
314 #define SD_CTL_STREAM_TAG_MASK (0xf << 20)
315 #define SD_CTL_STREAM_TAG_SHIFT 20
316
317 /* SD_CTL and SD_STS */
318 #define SD_INT_DESC_ERR 0x10 /* descriptor error interrupt */
319 #define SD_INT_FIFO_ERR 0x08 /* FIFO error interrupt */
320 #define SD_INT_COMPLETE 0x04 /* completion interrupt */
321 #define SD_INT_MASK (SD_INT_DESC_ERR|SD_INT_FIFO_ERR|\
322 SD_INT_COMPLETE)
323
324 /* SD_STS */
325 #define SD_STS_FIFO_READY 0x20 /* FIFO ready */
326
327 /* INTCTL and INTSTS */
328 #define ICH6_INT_ALL_STREAM 0xff /* all stream interrupts */
329 #define ICH6_INT_CTRL_EN 0x40000000 /* controller interrupt enable bit */
330 #define ICH6_INT_GLOBAL_EN 0x80000000 /* global interrupt enable bit */
331
332 /* below are so far hardcoded - should read registers in future */
333 #define ICH6_MAX_CORB_ENTRIES 256
334 #define ICH6_MAX_RIRB_ENTRIES 256
335
336 /* position fix mode */
337 enum {
338 POS_FIX_AUTO,
339 POS_FIX_LPIB,
340 POS_FIX_POSBUF,
341 POS_FIX_VIACOMBO,
342 POS_FIX_COMBO,
343 };
344
345 /* Defines for ATI HD Audio support in SB450 south bridge */
346 #define ATI_SB450_HDAUDIO_MISC_CNTR2_ADDR 0x42
347 #define ATI_SB450_HDAUDIO_ENABLE_SNOOP 0x02
348
349 /* Defines for Nvidia HDA support */
350 #define NVIDIA_HDA_TRANSREG_ADDR 0x4e
351 #define NVIDIA_HDA_ENABLE_COHBITS 0x0f
352 #define NVIDIA_HDA_ISTRM_COH 0x4d
353 #define NVIDIA_HDA_OSTRM_COH 0x4c
354 #define NVIDIA_HDA_ENABLE_COHBIT 0x01
355
356 /* Defines for Intel SCH HDA snoop control */
357 #define INTEL_SCH_HDA_DEVC 0x78
358 #define INTEL_SCH_HDA_DEVC_NOSNOOP (0x1<<11)
359
360 /* Define IN stream 0 FIFO size offset in VIA controller */
361 #define VIA_IN_STREAM0_FIFO_SIZE_OFFSET 0x90
362 /* Define VIA HD Audio Device ID*/
363 #define VIA_HDAC_DEVICE_ID 0x3288
364
365 /* HD Audio class code */
366 #define PCI_CLASS_MULTIMEDIA_HD_AUDIO 0x0403
367
368 /*
369 */
370
371 struct azx_dev {
372 struct snd_dma_buffer bdl; /* BDL buffer */
373 u32 *posbuf; /* position buffer pointer */
374
375 unsigned int bufsize; /* size of the play buffer in bytes */
376 unsigned int period_bytes; /* size of the period in bytes */
377 unsigned int frags; /* number for period in the play buffer */
378 unsigned int fifo_size; /* FIFO size */
379 unsigned long start_wallclk; /* start + minimum wallclk */
380 unsigned long period_wallclk; /* wallclk for period */
381
382 void __iomem *sd_addr; /* stream descriptor pointer */
383
384 u32 sd_int_sta_mask; /* stream int status mask */
385
386 /* pcm support */
387 struct snd_pcm_substream *substream; /* assigned substream,
388 * set in PCM open
389 */
390 unsigned int format_val; /* format value to be set in the
391 * controller and the codec
392 */
393 unsigned char stream_tag; /* assigned stream */
394 unsigned char index; /* stream index */
395 int assigned_key; /* last device# key assigned to */
396
397 unsigned int opened :1;
398 unsigned int running :1;
399 unsigned int irq_pending :1;
400 /*
401 * For VIA:
402 * A flag to ensure DMA position is 0
403 * when link position is not greater than FIFO size
404 */
405 unsigned int insufficient :1;
406 unsigned int wc_marked:1;
407 };
408
409 /* CORB/RIRB */
410 struct azx_rb {
411 u32 *buf; /* CORB/RIRB buffer
412 * Each CORB entry is 4byte, RIRB is 8byte
413 */
414 dma_addr_t addr; /* physical address of CORB/RIRB buffer */
415 /* for RIRB */
416 unsigned short rp, wp; /* read/write pointers */
417 int cmds[AZX_MAX_CODECS]; /* number of pending requests */
418 u32 res[AZX_MAX_CODECS]; /* last read value */
419 };
420
421 struct azx_pcm {
422 struct azx *chip;
423 struct snd_pcm *pcm;
424 struct hda_codec *codec;
425 struct hda_pcm_stream *hinfo[2];
426 struct list_head list;
427 };
428
429 struct azx {
430 struct snd_card *card;
431 struct pci_dev *pci;
432 int dev_index;
433
434 /* chip type specific */
435 int driver_type;
436 unsigned int driver_caps;
437 int playback_streams;
438 int playback_index_offset;
439 int capture_streams;
440 int capture_index_offset;
441 int num_streams;
442
443 /* pci resources */
444 unsigned long addr;
445 void __iomem *remap_addr;
446 int irq;
447
448 /* locks */
449 spinlock_t reg_lock;
450 struct mutex open_mutex;
451
452 /* streams (x num_streams) */
453 struct azx_dev *azx_dev;
454
455 /* PCM */
456 struct list_head pcm_list; /* azx_pcm list */
457
458 /* HD codec */
459 unsigned short codec_mask;
460 int codec_probe_mask; /* copied from probe_mask option */
461 struct hda_bus *bus;
462 unsigned int beep_mode;
463
464 /* CORB/RIRB */
465 struct azx_rb corb;
466 struct azx_rb rirb;
467
468 /* CORB/RIRB and position buffers */
469 struct snd_dma_buffer rb;
470 struct snd_dma_buffer posbuf;
471
472 /* flags */
473 int position_fix[2]; /* for both playback/capture streams */
474 int poll_count;
475 unsigned int running :1;
476 unsigned int initialized :1;
477 unsigned int single_cmd :1;
478 unsigned int polling_mode :1;
479 unsigned int msi :1;
480 unsigned int irq_pending_warned :1;
481 unsigned int probing :1; /* codec probing phase */
482 unsigned int snoop:1;
483 unsigned int align_buffer_size:1;
484 unsigned int region_requested:1;
485
486 /* VGA-switcheroo setup */
487 unsigned int use_vga_switcheroo:1;
488 unsigned int init_failed:1; /* delayed init failed */
489 unsigned int disabled:1; /* disabled by VGA-switcher */
490
491 /* for debugging */
492 unsigned int last_cmd[AZX_MAX_CODECS];
493
494 /* for pending irqs */
495 struct work_struct irq_pending_work;
496
497 /* reboot notifier (for mysterious hangup problem at power-down) */
498 struct notifier_block reboot_notifier;
499 };
500
501 /* driver types */
502 enum {
503 AZX_DRIVER_ICH,
504 AZX_DRIVER_PCH,
505 AZX_DRIVER_SCH,
506 AZX_DRIVER_ATI,
507 AZX_DRIVER_ATIHDMI,
508 AZX_DRIVER_ATIHDMI_NS,
509 AZX_DRIVER_VIA,
510 AZX_DRIVER_SIS,
511 AZX_DRIVER_ULI,
512 AZX_DRIVER_NVIDIA,
513 AZX_DRIVER_TERA,
514 AZX_DRIVER_CTX,
515 AZX_DRIVER_CTHDA,
516 AZX_DRIVER_GENERIC,
517 AZX_NUM_DRIVERS, /* keep this as last entry */
518 };
519
520 /* driver quirks (capabilities) */
521 /* bits 0-7 are used for indicating driver type */
522 #define AZX_DCAPS_NO_TCSEL (1 << 8) /* No Intel TCSEL bit */
523 #define AZX_DCAPS_NO_MSI (1 << 9) /* No MSI support */
524 #define AZX_DCAPS_ATI_SNOOP (1 << 10) /* ATI snoop enable */
525 #define AZX_DCAPS_NVIDIA_SNOOP (1 << 11) /* Nvidia snoop enable */
526 #define AZX_DCAPS_SCH_SNOOP (1 << 12) /* SCH/PCH snoop enable */
527 #define AZX_DCAPS_RIRB_DELAY (1 << 13) /* Long delay in read loop */
528 #define AZX_DCAPS_RIRB_PRE_DELAY (1 << 14) /* Put a delay before read */
529 #define AZX_DCAPS_CTX_WORKAROUND (1 << 15) /* X-Fi workaround */
530 #define AZX_DCAPS_POSFIX_LPIB (1 << 16) /* Use LPIB as default */
531 #define AZX_DCAPS_POSFIX_VIA (1 << 17) /* Use VIACOMBO as default */
532 #define AZX_DCAPS_NO_64BIT (1 << 18) /* No 64bit address */
533 #define AZX_DCAPS_SYNC_WRITE (1 << 19) /* sync each cmd write */
534 #define AZX_DCAPS_OLD_SSYNC (1 << 20) /* Old SSYNC reg for ICH */
535 #define AZX_DCAPS_BUFSIZE (1 << 21) /* no buffer size alignment */
536 #define AZX_DCAPS_ALIGN_BUFSIZE (1 << 22) /* buffer size alignment */
537 #define AZX_DCAPS_4K_BDLE_BOUNDARY (1 << 23) /* BDLE in 4k boundary */
538
539 /* quirks for ATI SB / AMD Hudson */
540 #define AZX_DCAPS_PRESET_ATI_SB \
541 (AZX_DCAPS_ATI_SNOOP | AZX_DCAPS_NO_TCSEL | \
542 AZX_DCAPS_SYNC_WRITE | AZX_DCAPS_POSFIX_LPIB)
543
544 /* quirks for ATI/AMD HDMI */
545 #define AZX_DCAPS_PRESET_ATI_HDMI \
546 (AZX_DCAPS_NO_TCSEL | AZX_DCAPS_SYNC_WRITE | AZX_DCAPS_POSFIX_LPIB)
547
548 /* quirks for Nvidia */
549 #define AZX_DCAPS_PRESET_NVIDIA \
550 (AZX_DCAPS_NVIDIA_SNOOP | AZX_DCAPS_RIRB_DELAY | AZX_DCAPS_NO_MSI |\
551 AZX_DCAPS_ALIGN_BUFSIZE)
552
553 #define AZX_DCAPS_PRESET_CTHDA \
554 (AZX_DCAPS_NO_MSI | AZX_DCAPS_POSFIX_LPIB | AZX_DCAPS_4K_BDLE_BOUNDARY)
555
556 /*
557 * VGA-switcher support
558 */
559 #ifdef SUPPORT_VGA_SWITCHEROO
560 #define DELAYED_INIT_MARK
561 #define DELAYED_INITDATA_MARK
562 #define use_vga_switcheroo(chip) ((chip)->use_vga_switcheroo)
563 #else
564 #define DELAYED_INIT_MARK __devinit
565 #define DELAYED_INITDATA_MARK __devinitdata
566 #define use_vga_switcheroo(chip) 0
567 #endif
568
569 static char *driver_short_names[] DELAYED_INITDATA_MARK = {
570 [AZX_DRIVER_ICH] = "HDA Intel",
571 [AZX_DRIVER_PCH] = "HDA Intel PCH",
572 [AZX_DRIVER_SCH] = "HDA Intel MID",
573 [AZX_DRIVER_ATI] = "HDA ATI SB",
574 [AZX_DRIVER_ATIHDMI] = "HDA ATI HDMI",
575 [AZX_DRIVER_ATIHDMI_NS] = "HDA ATI HDMI",
576 [AZX_DRIVER_VIA] = "HDA VIA VT82xx",
577 [AZX_DRIVER_SIS] = "HDA SIS966",
578 [AZX_DRIVER_ULI] = "HDA ULI M5461",
579 [AZX_DRIVER_NVIDIA] = "HDA NVidia",
580 [AZX_DRIVER_TERA] = "HDA Teradici",
581 [AZX_DRIVER_CTX] = "HDA Creative",
582 [AZX_DRIVER_CTHDA] = "HDA Creative",
583 [AZX_DRIVER_GENERIC] = "HD-Audio Generic",
584 };
585
586 /*
587 * macros for easy use
588 */
589 #define azx_writel(chip,reg,value) \
590 writel(value, (chip)->remap_addr + ICH6_REG_##reg)
591 #define azx_readl(chip,reg) \
592 readl((chip)->remap_addr + ICH6_REG_##reg)
593 #define azx_writew(chip,reg,value) \
594 writew(value, (chip)->remap_addr + ICH6_REG_##reg)
595 #define azx_readw(chip,reg) \
596 readw((chip)->remap_addr + ICH6_REG_##reg)
597 #define azx_writeb(chip,reg,value) \
598 writeb(value, (chip)->remap_addr + ICH6_REG_##reg)
599 #define azx_readb(chip,reg) \
600 readb((chip)->remap_addr + ICH6_REG_##reg)
601
602 #define azx_sd_writel(dev,reg,value) \
603 writel(value, (dev)->sd_addr + ICH6_REG_##reg)
604 #define azx_sd_readl(dev,reg) \
605 readl((dev)->sd_addr + ICH6_REG_##reg)
606 #define azx_sd_writew(dev,reg,value) \
607 writew(value, (dev)->sd_addr + ICH6_REG_##reg)
608 #define azx_sd_readw(dev,reg) \
609 readw((dev)->sd_addr + ICH6_REG_##reg)
610 #define azx_sd_writeb(dev,reg,value) \
611 writeb(value, (dev)->sd_addr + ICH6_REG_##reg)
612 #define azx_sd_readb(dev,reg) \
613 readb((dev)->sd_addr + ICH6_REG_##reg)
614
615 /* for pcm support */
616 #define get_azx_dev(substream) (substream->runtime->private_data)
617
618 #ifdef CONFIG_X86
619 static void __mark_pages_wc(struct azx *chip, void *addr, size_t size, bool on)
620 {
621 if (azx_snoop(chip))
622 return;
623 if (addr && size) {
624 int pages = (size + PAGE_SIZE - 1) >> PAGE_SHIFT;
625 if (on)
626 set_memory_wc((unsigned long)addr, pages);
627 else
628 set_memory_wb((unsigned long)addr, pages);
629 }
630 }
631
632 static inline void mark_pages_wc(struct azx *chip, struct snd_dma_buffer *buf,
633 bool on)
634 {
635 __mark_pages_wc(chip, buf->area, buf->bytes, on);
636 }
637 static inline void mark_runtime_wc(struct azx *chip, struct azx_dev *azx_dev,
638 struct snd_pcm_runtime *runtime, bool on)
639 {
640 if (azx_dev->wc_marked != on) {
641 __mark_pages_wc(chip, runtime->dma_area, runtime->dma_bytes, on);
642 azx_dev->wc_marked = on;
643 }
644 }
645 #else
646 /* NOP for other archs */
647 static inline void mark_pages_wc(struct azx *chip, struct snd_dma_buffer *buf,
648 bool on)
649 {
650 }
651 static inline void mark_runtime_wc(struct azx *chip, struct azx_dev *azx_dev,
652 struct snd_pcm_runtime *runtime, bool on)
653 {
654 }
655 #endif
656
657 static int azx_acquire_irq(struct azx *chip, int do_disconnect);
658 static int azx_send_cmd(struct hda_bus *bus, unsigned int val);
659 /*
660 * Interface for HD codec
661 */
662
663 /*
664 * CORB / RIRB interface
665 */
666 static int azx_alloc_cmd_io(struct azx *chip)
667 {
668 int err;
669
670 /* single page (at least 4096 bytes) must suffice for both ringbuffes */
671 err = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV,
672 snd_dma_pci_data(chip->pci),
673 PAGE_SIZE, &chip->rb);
674 if (err < 0) {
675 snd_printk(KERN_ERR SFX "cannot allocate CORB/RIRB\n");
676 return err;
677 }
678 mark_pages_wc(chip, &chip->rb, true);
679 return 0;
680 }
681
682 static void azx_init_cmd_io(struct azx *chip)
683 {
684 spin_lock_irq(&chip->reg_lock);
685 /* CORB set up */
686 chip->corb.addr = chip->rb.addr;
687 chip->corb.buf = (u32 *)chip->rb.area;
688 azx_writel(chip, CORBLBASE, (u32)chip->corb.addr);
689 azx_writel(chip, CORBUBASE, upper_32_bits(chip->corb.addr));
690
691 /* set the corb size to 256 entries (ULI requires explicitly) */
692 azx_writeb(chip, CORBSIZE, 0x02);
693 /* set the corb write pointer to 0 */
694 azx_writew(chip, CORBWP, 0);
695 /* reset the corb hw read pointer */
696 azx_writew(chip, CORBRP, ICH6_CORBRP_RST);
697 /* enable corb dma */
698 azx_writeb(chip, CORBCTL, ICH6_CORBCTL_RUN);
699
700 /* RIRB set up */
701 chip->rirb.addr = chip->rb.addr + 2048;
702 chip->rirb.buf = (u32 *)(chip->rb.area + 2048);
703 chip->rirb.wp = chip->rirb.rp = 0;
704 memset(chip->rirb.cmds, 0, sizeof(chip->rirb.cmds));
705 azx_writel(chip, RIRBLBASE, (u32)chip->rirb.addr);
706 azx_writel(chip, RIRBUBASE, upper_32_bits(chip->rirb.addr));
707
708 /* set the rirb size to 256 entries (ULI requires explicitly) */
709 azx_writeb(chip, RIRBSIZE, 0x02);
710 /* reset the rirb hw write pointer */
711 azx_writew(chip, RIRBWP, ICH6_RIRBWP_RST);
712 /* set N=1, get RIRB response interrupt for new entry */
713 if (chip->driver_caps & AZX_DCAPS_CTX_WORKAROUND)
714 azx_writew(chip, RINTCNT, 0xc0);
715 else
716 azx_writew(chip, RINTCNT, 1);
717 /* enable rirb dma and response irq */
718 azx_writeb(chip, RIRBCTL, ICH6_RBCTL_DMA_EN | ICH6_RBCTL_IRQ_EN);
719 spin_unlock_irq(&chip->reg_lock);
720 }
721
722 static void azx_free_cmd_io(struct azx *chip)
723 {
724 spin_lock_irq(&chip->reg_lock);
725 /* disable ringbuffer DMAs */
726 azx_writeb(chip, RIRBCTL, 0);
727 azx_writeb(chip, CORBCTL, 0);
728 spin_unlock_irq(&chip->reg_lock);
729 }
730
731 static unsigned int azx_command_addr(u32 cmd)
732 {
733 unsigned int addr = cmd >> 28;
734
735 if (addr >= AZX_MAX_CODECS) {
736 snd_BUG();
737 addr = 0;
738 }
739
740 return addr;
741 }
742
743 static unsigned int azx_response_addr(u32 res)
744 {
745 unsigned int addr = res & 0xf;
746
747 if (addr >= AZX_MAX_CODECS) {
748 snd_BUG();
749 addr = 0;
750 }
751
752 return addr;
753 }
754
755 /* send a command */
756 static int azx_corb_send_cmd(struct hda_bus *bus, u32 val)
757 {
758 struct azx *chip = bus->private_data;
759 unsigned int addr = azx_command_addr(val);
760 unsigned int wp;
761
762 spin_lock_irq(&chip->reg_lock);
763
764 /* add command to corb */
765 wp = azx_readb(chip, CORBWP);
766 wp++;
767 wp %= ICH6_MAX_CORB_ENTRIES;
768
769 chip->rirb.cmds[addr]++;
770 chip->corb.buf[wp] = cpu_to_le32(val);
771 azx_writel(chip, CORBWP, wp);
772
773 spin_unlock_irq(&chip->reg_lock);
774
775 return 0;
776 }
777
778 #define ICH6_RIRB_EX_UNSOL_EV (1<<4)
779
780 /* retrieve RIRB entry - called from interrupt handler */
781 static void azx_update_rirb(struct azx *chip)
782 {
783 unsigned int rp, wp;
784 unsigned int addr;
785 u32 res, res_ex;
786
787 wp = azx_readb(chip, RIRBWP);
788 if (wp == chip->rirb.wp)
789 return;
790 chip->rirb.wp = wp;
791
792 while (chip->rirb.rp != wp) {
793 chip->rirb.rp++;
794 chip->rirb.rp %= ICH6_MAX_RIRB_ENTRIES;
795
796 rp = chip->rirb.rp << 1; /* an RIRB entry is 8-bytes */
797 res_ex = le32_to_cpu(chip->rirb.buf[rp + 1]);
798 res = le32_to_cpu(chip->rirb.buf[rp]);
799 addr = azx_response_addr(res_ex);
800 if (res_ex & ICH6_RIRB_EX_UNSOL_EV)
801 snd_hda_queue_unsol_event(chip->bus, res, res_ex);
802 else if (chip->rirb.cmds[addr]) {
803 chip->rirb.res[addr] = res;
804 smp_wmb();
805 chip->rirb.cmds[addr]--;
806 } else
807 snd_printk(KERN_ERR SFX "spurious response %#x:%#x, "
808 "last cmd=%#08x\n",
809 res, res_ex,
810 chip->last_cmd[addr]);
811 }
812 }
813
814 /* receive a response */
815 static unsigned int azx_rirb_get_response(struct hda_bus *bus,
816 unsigned int addr)
817 {
818 struct azx *chip = bus->private_data;
819 unsigned long timeout;
820 unsigned long loopcounter;
821 int do_poll = 0;
822
823 again:
824 timeout = jiffies + msecs_to_jiffies(1000);
825
826 for (loopcounter = 0;; loopcounter++) {
827 if (chip->polling_mode || do_poll) {
828 spin_lock_irq(&chip->reg_lock);
829 azx_update_rirb(chip);
830 spin_unlock_irq(&chip->reg_lock);
831 }
832 if (!chip->rirb.cmds[addr]) {
833 smp_rmb();
834 bus->rirb_error = 0;
835
836 if (!do_poll)
837 chip->poll_count = 0;
838 return chip->rirb.res[addr]; /* the last value */
839 }
840 if (time_after(jiffies, timeout))
841 break;
842 if (bus->needs_damn_long_delay || loopcounter > 3000)
843 msleep(2); /* temporary workaround */
844 else {
845 udelay(10);
846 cond_resched();
847 }
848 }
849
850 if (!chip->polling_mode && chip->poll_count < 2) {
851 snd_printdd(SFX "azx_get_response timeout, "
852 "polling the codec once: last cmd=0x%08x\n",
853 chip->last_cmd[addr]);
854 do_poll = 1;
855 chip->poll_count++;
856 goto again;
857 }
858
859
860 if (!chip->polling_mode) {
861 snd_printk(KERN_WARNING SFX "azx_get_response timeout, "
862 "switching to polling mode: last cmd=0x%08x\n",
863 chip->last_cmd[addr]);
864 chip->polling_mode = 1;
865 goto again;
866 }
867
868 if (chip->msi) {
869 snd_printk(KERN_WARNING SFX "No response from codec, "
870 "disabling MSI: last cmd=0x%08x\n",
871 chip->last_cmd[addr]);
872 free_irq(chip->irq, chip);
873 chip->irq = -1;
874 pci_disable_msi(chip->pci);
875 chip->msi = 0;
876 if (azx_acquire_irq(chip, 1) < 0) {
877 bus->rirb_error = 1;
878 return -1;
879 }
880 goto again;
881 }
882
883 if (chip->probing) {
884 /* If this critical timeout happens during the codec probing
885 * phase, this is likely an access to a non-existing codec
886 * slot. Better to return an error and reset the system.
887 */
888 return -1;
889 }
890
891 /* a fatal communication error; need either to reset or to fallback
892 * to the single_cmd mode
893 */
894 bus->rirb_error = 1;
895 if (bus->allow_bus_reset && !bus->response_reset && !bus->in_reset) {
896 bus->response_reset = 1;
897 return -1; /* give a chance to retry */
898 }
899
900 snd_printk(KERN_ERR "hda_intel: azx_get_response timeout, "
901 "switching to single_cmd mode: last cmd=0x%08x\n",
902 chip->last_cmd[addr]);
903 chip->single_cmd = 1;
904 bus->response_reset = 0;
905 /* release CORB/RIRB */
906 azx_free_cmd_io(chip);
907 /* disable unsolicited responses */
908 azx_writel(chip, GCTL, azx_readl(chip, GCTL) & ~ICH6_GCTL_UNSOL);
909 return -1;
910 }
911
912 /*
913 * Use the single immediate command instead of CORB/RIRB for simplicity
914 *
915 * Note: according to Intel, this is not preferred use. The command was
916 * intended for the BIOS only, and may get confused with unsolicited
917 * responses. So, we shouldn't use it for normal operation from the
918 * driver.
919 * I left the codes, however, for debugging/testing purposes.
920 */
921
922 /* receive a response */
923 static int azx_single_wait_for_response(struct azx *chip, unsigned int addr)
924 {
925 int timeout = 50;
926
927 while (timeout--) {
928 /* check IRV busy bit */
929 if (azx_readw(chip, IRS) & ICH6_IRS_VALID) {
930 /* reuse rirb.res as the response return value */
931 chip->rirb.res[addr] = azx_readl(chip, IR);
932 return 0;
933 }
934 udelay(1);
935 }
936 if (printk_ratelimit())
937 snd_printd(SFX "get_response timeout: IRS=0x%x\n",
938 azx_readw(chip, IRS));
939 chip->rirb.res[addr] = -1;
940 return -EIO;
941 }
942
943 /* send a command */
944 static int azx_single_send_cmd(struct hda_bus *bus, u32 val)
945 {
946 struct azx *chip = bus->private_data;
947 unsigned int addr = azx_command_addr(val);
948 int timeout = 50;
949
950 bus->rirb_error = 0;
951 while (timeout--) {
952 /* check ICB busy bit */
953 if (!((azx_readw(chip, IRS) & ICH6_IRS_BUSY))) {
954 /* Clear IRV valid bit */
955 azx_writew(chip, IRS, azx_readw(chip, IRS) |
956 ICH6_IRS_VALID);
957 azx_writel(chip, IC, val);
958 azx_writew(chip, IRS, azx_readw(chip, IRS) |
959 ICH6_IRS_BUSY);
960 return azx_single_wait_for_response(chip, addr);
961 }
962 udelay(1);
963 }
964 if (printk_ratelimit())
965 snd_printd(SFX "send_cmd timeout: IRS=0x%x, val=0x%x\n",
966 azx_readw(chip, IRS), val);
967 return -EIO;
968 }
969
970 /* receive a response */
971 static unsigned int azx_single_get_response(struct hda_bus *bus,
972 unsigned int addr)
973 {
974 struct azx *chip = bus->private_data;
975 return chip->rirb.res[addr];
976 }
977
978 /*
979 * The below are the main callbacks from hda_codec.
980 *
981 * They are just the skeleton to call sub-callbacks according to the
982 * current setting of chip->single_cmd.
983 */
984
985 /* send a command */
986 static int azx_send_cmd(struct hda_bus *bus, unsigned int val)
987 {
988 struct azx *chip = bus->private_data;
989
990 if (chip->disabled)
991 return 0;
992 chip->last_cmd[azx_command_addr(val)] = val;
993 if (chip->single_cmd)
994 return azx_single_send_cmd(bus, val);
995 else
996 return azx_corb_send_cmd(bus, val);
997 }
998
999 /* get a response */
1000 static unsigned int azx_get_response(struct hda_bus *bus,
1001 unsigned int addr)
1002 {
1003 struct azx *chip = bus->private_data;
1004 if (chip->disabled)
1005 return 0;
1006 if (chip->single_cmd)
1007 return azx_single_get_response(bus, addr);
1008 else
1009 return azx_rirb_get_response(bus, addr);
1010 }
1011
1012 #ifdef CONFIG_SND_HDA_POWER_SAVE
1013 static void azx_power_notify(struct hda_bus *bus);
1014 #endif
1015
1016 /* reset codec link */
1017 static int azx_reset(struct azx *chip, int full_reset)
1018 {
1019 int count;
1020
1021 if (!full_reset)
1022 goto __skip;
1023
1024 /* clear STATESTS */
1025 azx_writeb(chip, STATESTS, STATESTS_INT_MASK);
1026
1027 /* reset controller */
1028 azx_writel(chip, GCTL, azx_readl(chip, GCTL) & ~ICH6_GCTL_RESET);
1029
1030 count = 50;
1031 while (azx_readb(chip, GCTL) && --count)
1032 msleep(1);
1033
1034 /* delay for >= 100us for codec PLL to settle per spec
1035 * Rev 0.9 section 5.5.1
1036 */
1037 msleep(1);
1038
1039 /* Bring controller out of reset */
1040 azx_writeb(chip, GCTL, azx_readb(chip, GCTL) | ICH6_GCTL_RESET);
1041
1042 count = 50;
1043 while (!azx_readb(chip, GCTL) && --count)
1044 msleep(1);
1045
1046 /* Brent Chartrand said to wait >= 540us for codecs to initialize */
1047 msleep(1);
1048
1049 __skip:
1050 /* check to see if controller is ready */
1051 if (!azx_readb(chip, GCTL)) {
1052 snd_printd(SFX "azx_reset: controller not ready!\n");
1053 return -EBUSY;
1054 }
1055
1056 /* Accept unsolicited responses */
1057 if (!chip->single_cmd)
1058 azx_writel(chip, GCTL, azx_readl(chip, GCTL) |
1059 ICH6_GCTL_UNSOL);
1060
1061 /* detect codecs */
1062 if (!chip->codec_mask) {
1063 chip->codec_mask = azx_readw(chip, STATESTS);
1064 snd_printdd(SFX "codec_mask = 0x%x\n", chip->codec_mask);
1065 }
1066
1067 return 0;
1068 }
1069
1070
1071 /*
1072 * Lowlevel interface
1073 */
1074
1075 /* enable interrupts */
1076 static void azx_int_enable(struct azx *chip)
1077 {
1078 /* enable controller CIE and GIE */
1079 azx_writel(chip, INTCTL, azx_readl(chip, INTCTL) |
1080 ICH6_INT_CTRL_EN | ICH6_INT_GLOBAL_EN);
1081 }
1082
1083 /* disable interrupts */
1084 static void azx_int_disable(struct azx *chip)
1085 {
1086 int i;
1087
1088 /* disable interrupts in stream descriptor */
1089 for (i = 0; i < chip->num_streams; i++) {
1090 struct azx_dev *azx_dev = &chip->azx_dev[i];
1091 azx_sd_writeb(azx_dev, SD_CTL,
1092 azx_sd_readb(azx_dev, SD_CTL) & ~SD_INT_MASK);
1093 }
1094
1095 /* disable SIE for all streams */
1096 azx_writeb(chip, INTCTL, 0);
1097
1098 /* disable controller CIE and GIE */
1099 azx_writel(chip, INTCTL, azx_readl(chip, INTCTL) &
1100 ~(ICH6_INT_CTRL_EN | ICH6_INT_GLOBAL_EN));
1101 }
1102
1103 /* clear interrupts */
1104 static void azx_int_clear(struct azx *chip)
1105 {
1106 int i;
1107
1108 /* clear stream status */
1109 for (i = 0; i < chip->num_streams; i++) {
1110 struct azx_dev *azx_dev = &chip->azx_dev[i];
1111 azx_sd_writeb(azx_dev, SD_STS, SD_INT_MASK);
1112 }
1113
1114 /* clear STATESTS */
1115 azx_writeb(chip, STATESTS, STATESTS_INT_MASK);
1116
1117 /* clear rirb status */
1118 azx_writeb(chip, RIRBSTS, RIRB_INT_MASK);
1119
1120 /* clear int status */
1121 azx_writel(chip, INTSTS, ICH6_INT_CTRL_EN | ICH6_INT_ALL_STREAM);
1122 }
1123
1124 /* start a stream */
1125 static void azx_stream_start(struct azx *chip, struct azx_dev *azx_dev)
1126 {
1127 /*
1128 * Before stream start, initialize parameter
1129 */
1130 azx_dev->insufficient = 1;
1131
1132 /* enable SIE */
1133 azx_writel(chip, INTCTL,
1134 azx_readl(chip, INTCTL) | (1 << azx_dev->index));
1135 /* set DMA start and interrupt mask */
1136 azx_sd_writeb(azx_dev, SD_CTL, azx_sd_readb(azx_dev, SD_CTL) |
1137 SD_CTL_DMA_START | SD_INT_MASK);
1138 }
1139
1140 /* stop DMA */
1141 static void azx_stream_clear(struct azx *chip, struct azx_dev *azx_dev)
1142 {
1143 azx_sd_writeb(azx_dev, SD_CTL, azx_sd_readb(azx_dev, SD_CTL) &
1144 ~(SD_CTL_DMA_START | SD_INT_MASK));
1145 azx_sd_writeb(azx_dev, SD_STS, SD_INT_MASK); /* to be sure */
1146 }
1147
1148 /* stop a stream */
1149 static void azx_stream_stop(struct azx *chip, struct azx_dev *azx_dev)
1150 {
1151 azx_stream_clear(chip, azx_dev);
1152 /* disable SIE */
1153 azx_writel(chip, INTCTL,
1154 azx_readl(chip, INTCTL) & ~(1 << azx_dev->index));
1155 }
1156
1157
1158 /*
1159 * reset and start the controller registers
1160 */
1161 static void azx_init_chip(struct azx *chip, int full_reset)
1162 {
1163 if (chip->initialized)
1164 return;
1165
1166 /* reset controller */
1167 azx_reset(chip, full_reset);
1168
1169 /* initialize interrupts */
1170 azx_int_clear(chip);
1171 azx_int_enable(chip);
1172
1173 /* initialize the codec command I/O */
1174 if (!chip->single_cmd)
1175 azx_init_cmd_io(chip);
1176
1177 /* program the position buffer */
1178 azx_writel(chip, DPLBASE, (u32)chip->posbuf.addr);
1179 azx_writel(chip, DPUBASE, upper_32_bits(chip->posbuf.addr));
1180
1181 chip->initialized = 1;
1182 }
1183
1184 /*
1185 * initialize the PCI registers
1186 */
1187 /* update bits in a PCI register byte */
1188 static void update_pci_byte(struct pci_dev *pci, unsigned int reg,
1189 unsigned char mask, unsigned char val)
1190 {
1191 unsigned char data;
1192
1193 pci_read_config_byte(pci, reg, &data);
1194 data &= ~mask;
1195 data |= (val & mask);
1196 pci_write_config_byte(pci, reg, data);
1197 }
1198
1199 static void azx_init_pci(struct azx *chip)
1200 {
1201 /* Clear bits 0-2 of PCI register TCSEL (at offset 0x44)
1202 * TCSEL == Traffic Class Select Register, which sets PCI express QOS
1203 * Ensuring these bits are 0 clears playback static on some HD Audio
1204 * codecs.
1205 * The PCI register TCSEL is defined in the Intel manuals.
1206 */
1207 if (!(chip->driver_caps & AZX_DCAPS_NO_TCSEL)) {
1208 snd_printdd(SFX "Clearing TCSEL\n");
1209 update_pci_byte(chip->pci, ICH6_PCIREG_TCSEL, 0x07, 0);
1210 }
1211
1212 /* For ATI SB450/600/700/800/900 and AMD Hudson azalia HD audio,
1213 * we need to enable snoop.
1214 */
1215 if (chip->driver_caps & AZX_DCAPS_ATI_SNOOP) {
1216 snd_printdd(SFX "Setting ATI snoop: %d\n", azx_snoop(chip));
1217 update_pci_byte(chip->pci,
1218 ATI_SB450_HDAUDIO_MISC_CNTR2_ADDR, 0x07,
1219 azx_snoop(chip) ? ATI_SB450_HDAUDIO_ENABLE_SNOOP : 0);
1220 }
1221
1222 /* For NVIDIA HDA, enable snoop */
1223 if (chip->driver_caps & AZX_DCAPS_NVIDIA_SNOOP) {
1224 snd_printdd(SFX "Setting Nvidia snoop: %d\n", azx_snoop(chip));
1225 update_pci_byte(chip->pci,
1226 NVIDIA_HDA_TRANSREG_ADDR,
1227 0x0f, NVIDIA_HDA_ENABLE_COHBITS);
1228 update_pci_byte(chip->pci,
1229 NVIDIA_HDA_ISTRM_COH,
1230 0x01, NVIDIA_HDA_ENABLE_COHBIT);
1231 update_pci_byte(chip->pci,
1232 NVIDIA_HDA_OSTRM_COH,
1233 0x01, NVIDIA_HDA_ENABLE_COHBIT);
1234 }
1235
1236 /* Enable SCH/PCH snoop if needed */
1237 if (chip->driver_caps & AZX_DCAPS_SCH_SNOOP) {
1238 unsigned short snoop;
1239 pci_read_config_word(chip->pci, INTEL_SCH_HDA_DEVC, &snoop);
1240 if ((!azx_snoop(chip) && !(snoop & INTEL_SCH_HDA_DEVC_NOSNOOP)) ||
1241 (azx_snoop(chip) && (snoop & INTEL_SCH_HDA_DEVC_NOSNOOP))) {
1242 snoop &= ~INTEL_SCH_HDA_DEVC_NOSNOOP;
1243 if (!azx_snoop(chip))
1244 snoop |= INTEL_SCH_HDA_DEVC_NOSNOOP;
1245 pci_write_config_word(chip->pci, INTEL_SCH_HDA_DEVC, snoop);
1246 pci_read_config_word(chip->pci,
1247 INTEL_SCH_HDA_DEVC, &snoop);
1248 }
1249 snd_printdd(SFX "SCH snoop: %s\n",
1250 (snoop & INTEL_SCH_HDA_DEVC_NOSNOOP)
1251 ? "Disabled" : "Enabled");
1252 }
1253 }
1254
1255
1256 static int azx_position_ok(struct azx *chip, struct azx_dev *azx_dev);
1257
1258 /*
1259 * interrupt handler
1260 */
1261 static irqreturn_t azx_interrupt(int irq, void *dev_id)
1262 {
1263 struct azx *chip = dev_id;
1264 struct azx_dev *azx_dev;
1265 u32 status;
1266 u8 sd_status;
1267 int i, ok;
1268
1269 spin_lock(&chip->reg_lock);
1270
1271 if (chip->disabled) {
1272 spin_unlock(&chip->reg_lock);
1273 return IRQ_NONE;
1274 }
1275
1276 status = azx_readl(chip, INTSTS);
1277 if (status == 0) {
1278 spin_unlock(&chip->reg_lock);
1279 return IRQ_NONE;
1280 }
1281
1282 for (i = 0; i < chip->num_streams; i++) {
1283 azx_dev = &chip->azx_dev[i];
1284 if (status & azx_dev->sd_int_sta_mask) {
1285 sd_status = azx_sd_readb(azx_dev, SD_STS);
1286 azx_sd_writeb(azx_dev, SD_STS, SD_INT_MASK);
1287 if (!azx_dev->substream || !azx_dev->running ||
1288 !(sd_status & SD_INT_COMPLETE))
1289 continue;
1290 /* check whether this IRQ is really acceptable */
1291 ok = azx_position_ok(chip, azx_dev);
1292 if (ok == 1) {
1293 azx_dev->irq_pending = 0;
1294 spin_unlock(&chip->reg_lock);
1295 snd_pcm_period_elapsed(azx_dev->substream);
1296 spin_lock(&chip->reg_lock);
1297 } else if (ok == 0 && chip->bus && chip->bus->workq) {
1298 /* bogus IRQ, process it later */
1299 azx_dev->irq_pending = 1;
1300 queue_work(chip->bus->workq,
1301 &chip->irq_pending_work);
1302 }
1303 }
1304 }
1305
1306 /* clear rirb int */
1307 status = azx_readb(chip, RIRBSTS);
1308 if (status & RIRB_INT_MASK) {
1309 if (status & RIRB_INT_RESPONSE) {
1310 if (chip->driver_caps & AZX_DCAPS_RIRB_PRE_DELAY)
1311 udelay(80);
1312 azx_update_rirb(chip);
1313 }
1314 azx_writeb(chip, RIRBSTS, RIRB_INT_MASK);
1315 }
1316
1317 #if 0
1318 /* clear state status int */
1319 if (azx_readb(chip, STATESTS) & 0x04)
1320 azx_writeb(chip, STATESTS, 0x04);
1321 #endif
1322 spin_unlock(&chip->reg_lock);
1323
1324 return IRQ_HANDLED;
1325 }
1326
1327
1328 /*
1329 * set up a BDL entry
1330 */
1331 static int setup_bdle(struct azx *chip,
1332 struct snd_pcm_substream *substream,
1333 struct azx_dev *azx_dev, u32 **bdlp,
1334 int ofs, int size, int with_ioc)
1335 {
1336 u32 *bdl = *bdlp;
1337
1338 while (size > 0) {
1339 dma_addr_t addr;
1340 int chunk;
1341
1342 if (azx_dev->frags >= AZX_MAX_BDL_ENTRIES)
1343 return -EINVAL;
1344
1345 addr = snd_pcm_sgbuf_get_addr(substream, ofs);
1346 /* program the address field of the BDL entry */
1347 bdl[0] = cpu_to_le32((u32)addr);
1348 bdl[1] = cpu_to_le32(upper_32_bits(addr));
1349 /* program the size field of the BDL entry */
1350 chunk = snd_pcm_sgbuf_get_chunk_size(substream, ofs, size);
1351 /* one BDLE cannot cross 4K boundary on CTHDA chips */
1352 if (chip->driver_caps & AZX_DCAPS_4K_BDLE_BOUNDARY) {
1353 u32 remain = 0x1000 - (ofs & 0xfff);
1354 if (chunk > remain)
1355 chunk = remain;
1356 }
1357 bdl[2] = cpu_to_le32(chunk);
1358 /* program the IOC to enable interrupt
1359 * only when the whole fragment is processed
1360 */
1361 size -= chunk;
1362 bdl[3] = (size || !with_ioc) ? 0 : cpu_to_le32(0x01);
1363 bdl += 4;
1364 azx_dev->frags++;
1365 ofs += chunk;
1366 }
1367 *bdlp = bdl;
1368 return ofs;
1369 }
1370
1371 /*
1372 * set up BDL entries
1373 */
1374 static int azx_setup_periods(struct azx *chip,
1375 struct snd_pcm_substream *substream,
1376 struct azx_dev *azx_dev)
1377 {
1378 u32 *bdl;
1379 int i, ofs, periods, period_bytes;
1380 int pos_adj;
1381
1382 /* reset BDL address */
1383 azx_sd_writel(azx_dev, SD_BDLPL, 0);
1384 azx_sd_writel(azx_dev, SD_BDLPU, 0);
1385
1386 period_bytes = azx_dev->period_bytes;
1387 periods = azx_dev->bufsize / period_bytes;
1388
1389 /* program the initial BDL entries */
1390 bdl = (u32 *)azx_dev->bdl.area;
1391 ofs = 0;
1392 azx_dev->frags = 0;
1393 pos_adj = bdl_pos_adj[chip->dev_index];
1394 if (pos_adj > 0) {
1395 struct snd_pcm_runtime *runtime = substream->runtime;
1396 int pos_align = pos_adj;
1397 pos_adj = (pos_adj * runtime->rate + 47999) / 48000;
1398 if (!pos_adj)
1399 pos_adj = pos_align;
1400 else
1401 pos_adj = ((pos_adj + pos_align - 1) / pos_align) *
1402 pos_align;
1403 pos_adj = frames_to_bytes(runtime, pos_adj);
1404 if (pos_adj >= period_bytes) {
1405 snd_printk(KERN_WARNING SFX "Too big adjustment %d\n",
1406 bdl_pos_adj[chip->dev_index]);
1407 pos_adj = 0;
1408 } else {
1409 ofs = setup_bdle(chip, substream, azx_dev,
1410 &bdl, ofs, pos_adj,
1411 !substream->runtime->no_period_wakeup);
1412 if (ofs < 0)
1413 goto error;
1414 }
1415 } else
1416 pos_adj = 0;
1417 for (i = 0; i < periods; i++) {
1418 if (i == periods - 1 && pos_adj)
1419 ofs = setup_bdle(chip, substream, azx_dev, &bdl, ofs,
1420 period_bytes - pos_adj, 0);
1421 else
1422 ofs = setup_bdle(chip, substream, azx_dev, &bdl, ofs,
1423 period_bytes,
1424 !substream->runtime->no_period_wakeup);
1425 if (ofs < 0)
1426 goto error;
1427 }
1428 return 0;
1429
1430 error:
1431 snd_printk(KERN_ERR SFX "Too many BDL entries: buffer=%d, period=%d\n",
1432 azx_dev->bufsize, period_bytes);
1433 return -EINVAL;
1434 }
1435
1436 /* reset stream */
1437 static void azx_stream_reset(struct azx *chip, struct azx_dev *azx_dev)
1438 {
1439 unsigned char val;
1440 int timeout;
1441
1442 azx_stream_clear(chip, azx_dev);
1443
1444 azx_sd_writeb(azx_dev, SD_CTL, azx_sd_readb(azx_dev, SD_CTL) |
1445 SD_CTL_STREAM_RESET);
1446 udelay(3);
1447 timeout = 300;
1448 while (!((val = azx_sd_readb(azx_dev, SD_CTL)) & SD_CTL_STREAM_RESET) &&
1449 --timeout)
1450 ;
1451 val &= ~SD_CTL_STREAM_RESET;
1452 azx_sd_writeb(azx_dev, SD_CTL, val);
1453 udelay(3);
1454
1455 timeout = 300;
1456 /* waiting for hardware to report that the stream is out of reset */
1457 while (((val = azx_sd_readb(azx_dev, SD_CTL)) & SD_CTL_STREAM_RESET) &&
1458 --timeout)
1459 ;
1460
1461 /* reset first position - may not be synced with hw at this time */
1462 *azx_dev->posbuf = 0;
1463 }
1464
1465 /*
1466 * set up the SD for streaming
1467 */
1468 static int azx_setup_controller(struct azx *chip, struct azx_dev *azx_dev)
1469 {
1470 unsigned int val;
1471 /* make sure the run bit is zero for SD */
1472 azx_stream_clear(chip, azx_dev);
1473 /* program the stream_tag */
1474 val = azx_sd_readl(azx_dev, SD_CTL);
1475 val = (val & ~SD_CTL_STREAM_TAG_MASK) |
1476 (azx_dev->stream_tag << SD_CTL_STREAM_TAG_SHIFT);
1477 if (!azx_snoop(chip))
1478 val |= SD_CTL_TRAFFIC_PRIO;
1479 azx_sd_writel(azx_dev, SD_CTL, val);
1480
1481 /* program the length of samples in cyclic buffer */
1482 azx_sd_writel(azx_dev, SD_CBL, azx_dev->bufsize);
1483
1484 /* program the stream format */
1485 /* this value needs to be the same as the one programmed */
1486 azx_sd_writew(azx_dev, SD_FORMAT, azx_dev->format_val);
1487
1488 /* program the stream LVI (last valid index) of the BDL */
1489 azx_sd_writew(azx_dev, SD_LVI, azx_dev->frags - 1);
1490
1491 /* program the BDL address */
1492 /* lower BDL address */
1493 azx_sd_writel(azx_dev, SD_BDLPL, (u32)azx_dev->bdl.addr);
1494 /* upper BDL address */
1495 azx_sd_writel(azx_dev, SD_BDLPU, upper_32_bits(azx_dev->bdl.addr));
1496
1497 /* enable the position buffer */
1498 if (chip->position_fix[0] != POS_FIX_LPIB ||
1499 chip->position_fix[1] != POS_FIX_LPIB) {
1500 if (!(azx_readl(chip, DPLBASE) & ICH6_DPLBASE_ENABLE))
1501 azx_writel(chip, DPLBASE,
1502 (u32)chip->posbuf.addr | ICH6_DPLBASE_ENABLE);
1503 }
1504
1505 /* set the interrupt enable bits in the descriptor control register */
1506 azx_sd_writel(azx_dev, SD_CTL,
1507 azx_sd_readl(azx_dev, SD_CTL) | SD_INT_MASK);
1508
1509 return 0;
1510 }
1511
1512 /*
1513 * Probe the given codec address
1514 */
1515 static int probe_codec(struct azx *chip, int addr)
1516 {
1517 unsigned int cmd = (addr << 28) | (AC_NODE_ROOT << 20) |
1518 (AC_VERB_PARAMETERS << 8) | AC_PAR_VENDOR_ID;
1519 unsigned int res;
1520
1521 mutex_lock(&chip->bus->cmd_mutex);
1522 chip->probing = 1;
1523 azx_send_cmd(chip->bus, cmd);
1524 res = azx_get_response(chip->bus, addr);
1525 chip->probing = 0;
1526 mutex_unlock(&chip->bus->cmd_mutex);
1527 if (res == -1)
1528 return -EIO;
1529 snd_printdd(SFX "codec #%d probed OK\n", addr);
1530 return 0;
1531 }
1532
1533 static int azx_attach_pcm_stream(struct hda_bus *bus, struct hda_codec *codec,
1534 struct hda_pcm *cpcm);
1535 static void azx_stop_chip(struct azx *chip);
1536
1537 static void azx_bus_reset(struct hda_bus *bus)
1538 {
1539 struct azx *chip = bus->private_data;
1540
1541 bus->in_reset = 1;
1542 azx_stop_chip(chip);
1543 azx_init_chip(chip, 1);
1544 #ifdef CONFIG_PM
1545 if (chip->initialized) {
1546 struct azx_pcm *p;
1547 list_for_each_entry(p, &chip->pcm_list, list)
1548 snd_pcm_suspend_all(p->pcm);
1549 snd_hda_suspend(chip->bus);
1550 snd_hda_resume(chip->bus);
1551 }
1552 #endif
1553 bus->in_reset = 0;
1554 }
1555
1556 /*
1557 * Codec initialization
1558 */
1559
1560 /* number of codec slots for each chipset: 0 = default slots (i.e. 4) */
1561 static unsigned int azx_max_codecs[AZX_NUM_DRIVERS] DELAYED_INITDATA_MARK = {
1562 [AZX_DRIVER_NVIDIA] = 8,
1563 [AZX_DRIVER_TERA] = 1,
1564 };
1565
1566 static int DELAYED_INIT_MARK azx_codec_create(struct azx *chip, const char *model)
1567 {
1568 struct hda_bus_template bus_temp;
1569 int c, codecs, err;
1570 int max_slots;
1571
1572 memset(&bus_temp, 0, sizeof(bus_temp));
1573 bus_temp.private_data = chip;
1574 bus_temp.modelname = model;
1575 bus_temp.pci = chip->pci;
1576 bus_temp.ops.command = azx_send_cmd;
1577 bus_temp.ops.get_response = azx_get_response;
1578 bus_temp.ops.attach_pcm = azx_attach_pcm_stream;
1579 bus_temp.ops.bus_reset = azx_bus_reset;
1580 #ifdef CONFIG_SND_HDA_POWER_SAVE
1581 bus_temp.power_save = &power_save;
1582 bus_temp.ops.pm_notify = azx_power_notify;
1583 #endif
1584
1585 err = snd_hda_bus_new(chip->card, &bus_temp, &chip->bus);
1586 if (err < 0)
1587 return err;
1588
1589 if (chip->driver_caps & AZX_DCAPS_RIRB_DELAY) {
1590 snd_printd(SFX "Enable delay in RIRB handling\n");
1591 chip->bus->needs_damn_long_delay = 1;
1592 }
1593
1594 codecs = 0;
1595 max_slots = azx_max_codecs[chip->driver_type];
1596 if (!max_slots)
1597 max_slots = AZX_DEFAULT_CODECS;
1598
1599 /* First try to probe all given codec slots */
1600 for (c = 0; c < max_slots; c++) {
1601 if ((chip->codec_mask & (1 << c)) & chip->codec_probe_mask) {
1602 if (probe_codec(chip, c) < 0) {
1603 /* Some BIOSen give you wrong codec addresses
1604 * that don't exist
1605 */
1606 snd_printk(KERN_WARNING SFX
1607 "Codec #%d probe error; "
1608 "disabling it...\n", c);
1609 chip->codec_mask &= ~(1 << c);
1610 /* More badly, accessing to a non-existing
1611 * codec often screws up the controller chip,
1612 * and disturbs the further communications.
1613 * Thus if an error occurs during probing,
1614 * better to reset the controller chip to
1615 * get back to the sanity state.
1616 */
1617 azx_stop_chip(chip);
1618 azx_init_chip(chip, 1);
1619 }
1620 }
1621 }
1622
1623 /* AMD chipsets often cause the communication stalls upon certain
1624 * sequence like the pin-detection. It seems that forcing the synced
1625 * access works around the stall. Grrr...
1626 */
1627 if (chip->driver_caps & AZX_DCAPS_SYNC_WRITE) {
1628 snd_printd(SFX "Enable sync_write for stable communication\n");
1629 chip->bus->sync_write = 1;
1630 chip->bus->allow_bus_reset = 1;
1631 }
1632
1633 /* Then create codec instances */
1634 for (c = 0; c < max_slots; c++) {
1635 if ((chip->codec_mask & (1 << c)) & chip->codec_probe_mask) {
1636 struct hda_codec *codec;
1637 err = snd_hda_codec_new(chip->bus, c, &codec);
1638 if (err < 0)
1639 continue;
1640 codec->beep_mode = chip->beep_mode;
1641 codecs++;
1642 }
1643 }
1644 if (!codecs) {
1645 snd_printk(KERN_ERR SFX "no codecs initialized\n");
1646 return -ENXIO;
1647 }
1648 return 0;
1649 }
1650
1651 /* configure each codec instance */
1652 static int __devinit azx_codec_configure(struct azx *chip)
1653 {
1654 struct hda_codec *codec;
1655 list_for_each_entry(codec, &chip->bus->codec_list, list) {
1656 snd_hda_codec_configure(codec);
1657 }
1658 return 0;
1659 }
1660
1661
1662 /*
1663 * PCM support
1664 */
1665
1666 /* assign a stream for the PCM */
1667 static inline struct azx_dev *
1668 azx_assign_device(struct azx *chip, struct snd_pcm_substream *substream)
1669 {
1670 int dev, i, nums;
1671 struct azx_dev *res = NULL;
1672 /* make a non-zero unique key for the substream */
1673 int key = (substream->pcm->device << 16) | (substream->number << 2) |
1674 (substream->stream + 1);
1675
1676 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
1677 dev = chip->playback_index_offset;
1678 nums = chip->playback_streams;
1679 } else {
1680 dev = chip->capture_index_offset;
1681 nums = chip->capture_streams;
1682 }
1683 for (i = 0; i < nums; i++, dev++)
1684 if (!chip->azx_dev[dev].opened) {
1685 res = &chip->azx_dev[dev];
1686 if (res->assigned_key == key)
1687 break;
1688 }
1689 if (res) {
1690 res->opened = 1;
1691 res->assigned_key = key;
1692 }
1693 return res;
1694 }
1695
1696 /* release the assigned stream */
1697 static inline void azx_release_device(struct azx_dev *azx_dev)
1698 {
1699 azx_dev->opened = 0;
1700 }
1701
1702 static struct snd_pcm_hardware azx_pcm_hw = {
1703 .info = (SNDRV_PCM_INFO_MMAP |
1704 SNDRV_PCM_INFO_INTERLEAVED |
1705 SNDRV_PCM_INFO_BLOCK_TRANSFER |
1706 SNDRV_PCM_INFO_MMAP_VALID |
1707 /* No full-resume yet implemented */
1708 /* SNDRV_PCM_INFO_RESUME |*/
1709 SNDRV_PCM_INFO_PAUSE |
1710 SNDRV_PCM_INFO_SYNC_START |
1711 SNDRV_PCM_INFO_NO_PERIOD_WAKEUP),
1712 .formats = SNDRV_PCM_FMTBIT_S16_LE,
1713 .rates = SNDRV_PCM_RATE_48000,
1714 .rate_min = 48000,
1715 .rate_max = 48000,
1716 .channels_min = 2,
1717 .channels_max = 2,
1718 .buffer_bytes_max = AZX_MAX_BUF_SIZE,
1719 .period_bytes_min = 128,
1720 .period_bytes_max = AZX_MAX_BUF_SIZE / 2,
1721 .periods_min = 2,
1722 .periods_max = AZX_MAX_FRAG,
1723 .fifo_size = 0,
1724 };
1725
1726 static int azx_pcm_open(struct snd_pcm_substream *substream)
1727 {
1728 struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
1729 struct hda_pcm_stream *hinfo = apcm->hinfo[substream->stream];
1730 struct azx *chip = apcm->chip;
1731 struct azx_dev *azx_dev;
1732 struct snd_pcm_runtime *runtime = substream->runtime;
1733 unsigned long flags;
1734 int err;
1735 int buff_step;
1736
1737 mutex_lock(&chip->open_mutex);
1738 azx_dev = azx_assign_device(chip, substream);
1739 if (azx_dev == NULL) {
1740 mutex_unlock(&chip->open_mutex);
1741 return -EBUSY;
1742 }
1743 runtime->hw = azx_pcm_hw;
1744 runtime->hw.channels_min = hinfo->channels_min;
1745 runtime->hw.channels_max = hinfo->channels_max;
1746 runtime->hw.formats = hinfo->formats;
1747 runtime->hw.rates = hinfo->rates;
1748 snd_pcm_limit_hw_rates(runtime);
1749 snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS);
1750 if (chip->align_buffer_size)
1751 /* constrain buffer sizes to be multiple of 128
1752 bytes. This is more efficient in terms of memory
1753 access but isn't required by the HDA spec and
1754 prevents users from specifying exact period/buffer
1755 sizes. For example for 44.1kHz, a period size set
1756 to 20ms will be rounded to 19.59ms. */
1757 buff_step = 128;
1758 else
1759 /* Don't enforce steps on buffer sizes, still need to
1760 be multiple of 4 bytes (HDA spec). Tested on Intel
1761 HDA controllers, may not work on all devices where
1762 option needs to be disabled */
1763 buff_step = 4;
1764
1765 snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_BUFFER_BYTES,
1766 buff_step);
1767 snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES,
1768 buff_step);
1769 snd_hda_power_up(apcm->codec);
1770 err = hinfo->ops.open(hinfo, apcm->codec, substream);
1771 if (err < 0) {
1772 azx_release_device(azx_dev);
1773 snd_hda_power_down(apcm->codec);
1774 mutex_unlock(&chip->open_mutex);
1775 return err;
1776 }
1777 snd_pcm_limit_hw_rates(runtime);
1778 /* sanity check */
1779 if (snd_BUG_ON(!runtime->hw.channels_min) ||
1780 snd_BUG_ON(!runtime->hw.channels_max) ||
1781 snd_BUG_ON(!runtime->hw.formats) ||
1782 snd_BUG_ON(!runtime->hw.rates)) {
1783 azx_release_device(azx_dev);
1784 hinfo->ops.close(hinfo, apcm->codec, substream);
1785 snd_hda_power_down(apcm->codec);
1786 mutex_unlock(&chip->open_mutex);
1787 return -EINVAL;
1788 }
1789 spin_lock_irqsave(&chip->reg_lock, flags);
1790 azx_dev->substream = substream;
1791 azx_dev->running = 0;
1792 spin_unlock_irqrestore(&chip->reg_lock, flags);
1793
1794 runtime->private_data = azx_dev;
1795 snd_pcm_set_sync(substream);
1796 mutex_unlock(&chip->open_mutex);
1797 return 0;
1798 }
1799
1800 static int azx_pcm_close(struct snd_pcm_substream *substream)
1801 {
1802 struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
1803 struct hda_pcm_stream *hinfo = apcm->hinfo[substream->stream];
1804 struct azx *chip = apcm->chip;
1805 struct azx_dev *azx_dev = get_azx_dev(substream);
1806 unsigned long flags;
1807
1808 mutex_lock(&chip->open_mutex);
1809 spin_lock_irqsave(&chip->reg_lock, flags);
1810 azx_dev->substream = NULL;
1811 azx_dev->running = 0;
1812 spin_unlock_irqrestore(&chip->reg_lock, flags);
1813 azx_release_device(azx_dev);
1814 hinfo->ops.close(hinfo, apcm->codec, substream);
1815 snd_hda_power_down(apcm->codec);
1816 mutex_unlock(&chip->open_mutex);
1817 return 0;
1818 }
1819
1820 static int azx_pcm_hw_params(struct snd_pcm_substream *substream,
1821 struct snd_pcm_hw_params *hw_params)
1822 {
1823 struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
1824 struct azx *chip = apcm->chip;
1825 struct snd_pcm_runtime *runtime = substream->runtime;
1826 struct azx_dev *azx_dev = get_azx_dev(substream);
1827 int ret;
1828
1829 mark_runtime_wc(chip, azx_dev, runtime, false);
1830 azx_dev->bufsize = 0;
1831 azx_dev->period_bytes = 0;
1832 azx_dev->format_val = 0;
1833 ret = snd_pcm_lib_malloc_pages(substream,
1834 params_buffer_bytes(hw_params));
1835 if (ret < 0)
1836 return ret;
1837 mark_runtime_wc(chip, azx_dev, runtime, true);
1838 return ret;
1839 }
1840
1841 static int azx_pcm_hw_free(struct snd_pcm_substream *substream)
1842 {
1843 struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
1844 struct azx_dev *azx_dev = get_azx_dev(substream);
1845 struct azx *chip = apcm->chip;
1846 struct snd_pcm_runtime *runtime = substream->runtime;
1847 struct hda_pcm_stream *hinfo = apcm->hinfo[substream->stream];
1848
1849 /* reset BDL address */
1850 azx_sd_writel(azx_dev, SD_BDLPL, 0);
1851 azx_sd_writel(azx_dev, SD_BDLPU, 0);
1852 azx_sd_writel(azx_dev, SD_CTL, 0);
1853 azx_dev->bufsize = 0;
1854 azx_dev->period_bytes = 0;
1855 azx_dev->format_val = 0;
1856
1857 snd_hda_codec_cleanup(apcm->codec, hinfo, substream);
1858
1859 mark_runtime_wc(chip, azx_dev, runtime, false);
1860 return snd_pcm_lib_free_pages(substream);
1861 }
1862
1863 static int azx_pcm_prepare(struct snd_pcm_substream *substream)
1864 {
1865 struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
1866 struct azx *chip = apcm->chip;
1867 struct azx_dev *azx_dev = get_azx_dev(substream);
1868 struct hda_pcm_stream *hinfo = apcm->hinfo[substream->stream];
1869 struct snd_pcm_runtime *runtime = substream->runtime;
1870 unsigned int bufsize, period_bytes, format_val, stream_tag;
1871 int err;
1872 struct hda_spdif_out *spdif =
1873 snd_hda_spdif_out_of_nid(apcm->codec, hinfo->nid);
1874 unsigned short ctls = spdif ? spdif->ctls : 0;
1875
1876 azx_stream_reset(chip, azx_dev);
1877 format_val = snd_hda_calc_stream_format(runtime->rate,
1878 runtime->channels,
1879 runtime->format,
1880 hinfo->maxbps,
1881 ctls);
1882 if (!format_val) {
1883 snd_printk(KERN_ERR SFX
1884 "invalid format_val, rate=%d, ch=%d, format=%d\n",
1885 runtime->rate, runtime->channels, runtime->format);
1886 return -EINVAL;
1887 }
1888
1889 bufsize = snd_pcm_lib_buffer_bytes(substream);
1890 period_bytes = snd_pcm_lib_period_bytes(substream);
1891
1892 snd_printdd(SFX "azx_pcm_prepare: bufsize=0x%x, format=0x%x\n",
1893 bufsize, format_val);
1894
1895 if (bufsize != azx_dev->bufsize ||
1896 period_bytes != azx_dev->period_bytes ||
1897 format_val != azx_dev->format_val) {
1898 azx_dev->bufsize = bufsize;
1899 azx_dev->period_bytes = period_bytes;
1900 azx_dev->format_val = format_val;
1901 err = azx_setup_periods(chip, substream, azx_dev);
1902 if (err < 0)
1903 return err;
1904 }
1905
1906 /* wallclk has 24Mhz clock source */
1907 azx_dev->period_wallclk = (((runtime->period_size * 24000) /
1908 runtime->rate) * 1000);
1909 azx_setup_controller(chip, azx_dev);
1910 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
1911 azx_dev->fifo_size = azx_sd_readw(azx_dev, SD_FIFOSIZE) + 1;
1912 else
1913 azx_dev->fifo_size = 0;
1914
1915 stream_tag = azx_dev->stream_tag;
1916 /* CA-IBG chips need the playback stream starting from 1 */
1917 if ((chip->driver_caps & AZX_DCAPS_CTX_WORKAROUND) &&
1918 stream_tag > chip->capture_streams)
1919 stream_tag -= chip->capture_streams;
1920 return snd_hda_codec_prepare(apcm->codec, hinfo, stream_tag,
1921 azx_dev->format_val, substream);
1922 }
1923
1924 static int azx_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
1925 {
1926 struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
1927 struct azx *chip = apcm->chip;
1928 struct azx_dev *azx_dev;
1929 struct snd_pcm_substream *s;
1930 int rstart = 0, start, nsync = 0, sbits = 0;
1931 int nwait, timeout;
1932
1933 switch (cmd) {
1934 case SNDRV_PCM_TRIGGER_START:
1935 rstart = 1;
1936 case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
1937 case SNDRV_PCM_TRIGGER_RESUME:
1938 start = 1;
1939 break;
1940 case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
1941 case SNDRV_PCM_TRIGGER_SUSPEND:
1942 case SNDRV_PCM_TRIGGER_STOP:
1943 start = 0;
1944 break;
1945 default:
1946 return -EINVAL;
1947 }
1948
1949 snd_pcm_group_for_each_entry(s, substream) {
1950 if (s->pcm->card != substream->pcm->card)
1951 continue;
1952 azx_dev = get_azx_dev(s);
1953 sbits |= 1 << azx_dev->index;
1954 nsync++;
1955 snd_pcm_trigger_done(s, substream);
1956 }
1957
1958 spin_lock(&chip->reg_lock);
1959 if (nsync > 1) {
1960 /* first, set SYNC bits of corresponding streams */
1961 if (chip->driver_caps & AZX_DCAPS_OLD_SSYNC)
1962 azx_writel(chip, OLD_SSYNC,
1963 azx_readl(chip, OLD_SSYNC) | sbits);
1964 else
1965 azx_writel(chip, SSYNC, azx_readl(chip, SSYNC) | sbits);
1966 }
1967 snd_pcm_group_for_each_entry(s, substream) {
1968 if (s->pcm->card != substream->pcm->card)
1969 continue;
1970 azx_dev = get_azx_dev(s);
1971 if (start) {
1972 azx_dev->start_wallclk = azx_readl(chip, WALLCLK);
1973 if (!rstart)
1974 azx_dev->start_wallclk -=
1975 azx_dev->period_wallclk;
1976 azx_stream_start(chip, azx_dev);
1977 } else {
1978 azx_stream_stop(chip, azx_dev);
1979 }
1980 azx_dev->running = start;
1981 }
1982 spin_unlock(&chip->reg_lock);
1983 if (start) {
1984 if (nsync == 1)
1985 return 0;
1986 /* wait until all FIFOs get ready */
1987 for (timeout = 5000; timeout; timeout--) {
1988 nwait = 0;
1989 snd_pcm_group_for_each_entry(s, substream) {
1990 if (s->pcm->card != substream->pcm->card)
1991 continue;
1992 azx_dev = get_azx_dev(s);
1993 if (!(azx_sd_readb(azx_dev, SD_STS) &
1994 SD_STS_FIFO_READY))
1995 nwait++;
1996 }
1997 if (!nwait)
1998 break;
1999 cpu_relax();
2000 }
2001 } else {
2002 /* wait until all RUN bits are cleared */
2003 for (timeout = 5000; timeout; timeout--) {
2004 nwait = 0;
2005 snd_pcm_group_for_each_entry(s, substream) {
2006 if (s->pcm->card != substream->pcm->card)
2007 continue;
2008 azx_dev = get_azx_dev(s);
2009 if (azx_sd_readb(azx_dev, SD_CTL) &
2010 SD_CTL_DMA_START)
2011 nwait++;
2012 }
2013 if (!nwait)
2014 break;
2015 cpu_relax();
2016 }
2017 }
2018 if (nsync > 1) {
2019 spin_lock(&chip->reg_lock);
2020 /* reset SYNC bits */
2021 if (chip->driver_caps & AZX_DCAPS_OLD_SSYNC)
2022 azx_writel(chip, OLD_SSYNC,
2023 azx_readl(chip, OLD_SSYNC) & ~sbits);
2024 else
2025 azx_writel(chip, SSYNC, azx_readl(chip, SSYNC) & ~sbits);
2026 spin_unlock(&chip->reg_lock);
2027 }
2028 return 0;
2029 }
2030
2031 /* get the current DMA position with correction on VIA chips */
2032 static unsigned int azx_via_get_position(struct azx *chip,
2033 struct azx_dev *azx_dev)
2034 {
2035 unsigned int link_pos, mini_pos, bound_pos;
2036 unsigned int mod_link_pos, mod_dma_pos, mod_mini_pos;
2037 unsigned int fifo_size;
2038
2039 link_pos = azx_sd_readl(azx_dev, SD_LPIB);
2040 if (azx_dev->substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
2041 /* Playback, no problem using link position */
2042 return link_pos;
2043 }
2044
2045 /* Capture */
2046 /* For new chipset,
2047 * use mod to get the DMA position just like old chipset
2048 */
2049 mod_dma_pos = le32_to_cpu(*azx_dev->posbuf);
2050 mod_dma_pos %= azx_dev->period_bytes;
2051
2052 /* azx_dev->fifo_size can't get FIFO size of in stream.
2053 * Get from base address + offset.
2054 */
2055 fifo_size = readw(chip->remap_addr + VIA_IN_STREAM0_FIFO_SIZE_OFFSET);
2056
2057 if (azx_dev->insufficient) {
2058 /* Link position never gather than FIFO size */
2059 if (link_pos <= fifo_size)
2060 return 0;
2061
2062 azx_dev->insufficient = 0;
2063 }
2064
2065 if (link_pos <= fifo_size)
2066 mini_pos = azx_dev->bufsize + link_pos - fifo_size;
2067 else
2068 mini_pos = link_pos - fifo_size;
2069
2070 /* Find nearest previous boudary */
2071 mod_mini_pos = mini_pos % azx_dev->period_bytes;
2072 mod_link_pos = link_pos % azx_dev->period_bytes;
2073 if (mod_link_pos >= fifo_size)
2074 bound_pos = link_pos - mod_link_pos;
2075 else if (mod_dma_pos >= mod_mini_pos)
2076 bound_pos = mini_pos - mod_mini_pos;
2077 else {
2078 bound_pos = mini_pos - mod_mini_pos + azx_dev->period_bytes;
2079 if (bound_pos >= azx_dev->bufsize)
2080 bound_pos = 0;
2081 }
2082
2083 /* Calculate real DMA position we want */
2084 return bound_pos + mod_dma_pos;
2085 }
2086
2087 static unsigned int azx_get_position(struct azx *chip,
2088 struct azx_dev *azx_dev,
2089 bool with_check)
2090 {
2091 unsigned int pos;
2092 int stream = azx_dev->substream->stream;
2093
2094 switch (chip->position_fix[stream]) {
2095 case POS_FIX_LPIB:
2096 /* read LPIB */
2097 pos = azx_sd_readl(azx_dev, SD_LPIB);
2098 break;
2099 case POS_FIX_VIACOMBO:
2100 pos = azx_via_get_position(chip, azx_dev);
2101 break;
2102 default:
2103 /* use the position buffer */
2104 pos = le32_to_cpu(*azx_dev->posbuf);
2105 if (with_check && chip->position_fix[stream] == POS_FIX_AUTO) {
2106 if (!pos || pos == (u32)-1) {
2107 printk(KERN_WARNING
2108 "hda-intel: Invalid position buffer, "
2109 "using LPIB read method instead.\n");
2110 chip->position_fix[stream] = POS_FIX_LPIB;
2111 pos = azx_sd_readl(azx_dev, SD_LPIB);
2112 } else
2113 chip->position_fix[stream] = POS_FIX_POSBUF;
2114 }
2115 break;
2116 }
2117
2118 if (pos >= azx_dev->bufsize)
2119 pos = 0;
2120 return pos;
2121 }
2122
2123 static snd_pcm_uframes_t azx_pcm_pointer(struct snd_pcm_substream *substream)
2124 {
2125 struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
2126 struct azx *chip = apcm->chip;
2127 struct azx_dev *azx_dev = get_azx_dev(substream);
2128 return bytes_to_frames(substream->runtime,
2129 azx_get_position(chip, azx_dev, false));
2130 }
2131
2132 /*
2133 * Check whether the current DMA position is acceptable for updating
2134 * periods. Returns non-zero if it's OK.
2135 *
2136 * Many HD-audio controllers appear pretty inaccurate about
2137 * the update-IRQ timing. The IRQ is issued before actually the
2138 * data is processed. So, we need to process it afterwords in a
2139 * workqueue.
2140 */
2141 static int azx_position_ok(struct azx *chip, struct azx_dev *azx_dev)
2142 {
2143 u32 wallclk;
2144 unsigned int pos;
2145 int stream;
2146
2147 wallclk = azx_readl(chip, WALLCLK) - azx_dev->start_wallclk;
2148 if (wallclk < (azx_dev->period_wallclk * 2) / 3)
2149 return -1; /* bogus (too early) interrupt */
2150
2151 stream = azx_dev->substream->stream;
2152 pos = azx_get_position(chip, azx_dev, true);
2153
2154 if (WARN_ONCE(!azx_dev->period_bytes,
2155 "hda-intel: zero azx_dev->period_bytes"))
2156 return -1; /* this shouldn't happen! */
2157 if (wallclk < (azx_dev->period_wallclk * 5) / 4 &&
2158 pos % azx_dev->period_bytes > azx_dev->period_bytes / 2)
2159 /* NG - it's below the first next period boundary */
2160 return bdl_pos_adj[chip->dev_index] ? 0 : -1;
2161 azx_dev->start_wallclk += wallclk;
2162 return 1; /* OK, it's fine */
2163 }
2164
2165 /*
2166 * The work for pending PCM period updates.
2167 */
2168 static void azx_irq_pending_work(struct work_struct *work)
2169 {
2170 struct azx *chip = container_of(work, struct azx, irq_pending_work);
2171 int i, pending, ok;
2172
2173 if (!chip->irq_pending_warned) {
2174 printk(KERN_WARNING
2175 "hda-intel: IRQ timing workaround is activated "
2176 "for card #%d. Suggest a bigger bdl_pos_adj.\n",
2177 chip->card->number);
2178 chip->irq_pending_warned = 1;
2179 }
2180
2181 for (;;) {
2182 pending = 0;
2183 spin_lock_irq(&chip->reg_lock);
2184 for (i = 0; i < chip->num_streams; i++) {
2185 struct azx_dev *azx_dev = &chip->azx_dev[i];
2186 if (!azx_dev->irq_pending ||
2187 !azx_dev->substream ||
2188 !azx_dev->running)
2189 continue;
2190 ok = azx_position_ok(chip, azx_dev);
2191 if (ok > 0) {
2192 azx_dev->irq_pending = 0;
2193 spin_unlock(&chip->reg_lock);
2194 snd_pcm_period_elapsed(azx_dev->substream);
2195 spin_lock(&chip->reg_lock);
2196 } else if (ok < 0) {
2197 pending = 0; /* too early */
2198 } else
2199 pending++;
2200 }
2201 spin_unlock_irq(&chip->reg_lock);
2202 if (!pending)
2203 return;
2204 msleep(1);
2205 }
2206 }
2207
2208 /* clear irq_pending flags and assure no on-going workq */
2209 static void azx_clear_irq_pending(struct azx *chip)
2210 {
2211 int i;
2212
2213 spin_lock_irq(&chip->reg_lock);
2214 for (i = 0; i < chip->num_streams; i++)
2215 chip->azx_dev[i].irq_pending = 0;
2216 spin_unlock_irq(&chip->reg_lock);
2217 }
2218
2219 #ifdef CONFIG_X86
2220 static int azx_pcm_mmap(struct snd_pcm_substream *substream,
2221 struct vm_area_struct *area)
2222 {
2223 struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
2224 struct azx *chip = apcm->chip;
2225 if (!azx_snoop(chip))
2226 area->vm_page_prot = pgprot_writecombine(area->vm_page_prot);
2227 return snd_pcm_lib_default_mmap(substream, area);
2228 }
2229 #else
2230 #define azx_pcm_mmap NULL
2231 #endif
2232
2233 static struct snd_pcm_ops azx_pcm_ops = {
2234 .open = azx_pcm_open,
2235 .close = azx_pcm_close,
2236 .ioctl = snd_pcm_lib_ioctl,
2237 .hw_params = azx_pcm_hw_params,
2238 .hw_free = azx_pcm_hw_free,
2239 .prepare = azx_pcm_prepare,
2240 .trigger = azx_pcm_trigger,
2241 .pointer = azx_pcm_pointer,
2242 .mmap = azx_pcm_mmap,
2243 .page = snd_pcm_sgbuf_ops_page,
2244 };
2245
2246 static void azx_pcm_free(struct snd_pcm *pcm)
2247 {
2248 struct azx_pcm *apcm = pcm->private_data;
2249 if (apcm) {
2250 list_del(&apcm->list);
2251 kfree(apcm);
2252 }
2253 }
2254
2255 #define MAX_PREALLOC_SIZE (32 * 1024 * 1024)
2256
2257 static int
2258 azx_attach_pcm_stream(struct hda_bus *bus, struct hda_codec *codec,
2259 struct hda_pcm *cpcm)
2260 {
2261 struct azx *chip = bus->private_data;
2262 struct snd_pcm *pcm;
2263 struct azx_pcm *apcm;
2264 int pcm_dev = cpcm->device;
2265 unsigned int size;
2266 int s, err;
2267
2268 list_for_each_entry(apcm, &chip->pcm_list, list) {
2269 if (apcm->pcm->device == pcm_dev) {
2270 snd_printk(KERN_ERR SFX "PCM %d already exists\n", pcm_dev);
2271 return -EBUSY;
2272 }
2273 }
2274 err = snd_pcm_new(chip->card, cpcm->name, pcm_dev,
2275 cpcm->stream[SNDRV_PCM_STREAM_PLAYBACK].substreams,
2276 cpcm->stream[SNDRV_PCM_STREAM_CAPTURE].substreams,
2277 &pcm);
2278 if (err < 0)
2279 return err;
2280 strlcpy(pcm->name, cpcm->name, sizeof(pcm->name));
2281 apcm = kzalloc(sizeof(*apcm), GFP_KERNEL);
2282 if (apcm == NULL)
2283 return -ENOMEM;
2284 apcm->chip = chip;
2285 apcm->pcm = pcm;
2286 apcm->codec = codec;
2287 pcm->private_data = apcm;
2288 pcm->private_free = azx_pcm_free;
2289 if (cpcm->pcm_type == HDA_PCM_TYPE_MODEM)
2290 pcm->dev_class = SNDRV_PCM_CLASS_MODEM;
2291 list_add_tail(&apcm->list, &chip->pcm_list);
2292 cpcm->pcm = pcm;
2293 for (s = 0; s < 2; s++) {
2294 apcm->hinfo[s] = &cpcm->stream[s];
2295 if (cpcm->stream[s].substreams)
2296 snd_pcm_set_ops(pcm, s, &azx_pcm_ops);
2297 }
2298 /* buffer pre-allocation */
2299 size = CONFIG_SND_HDA_PREALLOC_SIZE * 1024;
2300 if (size > MAX_PREALLOC_SIZE)
2301 size = MAX_PREALLOC_SIZE;
2302 snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
2303 snd_dma_pci_data(chip->pci),
2304 size, MAX_PREALLOC_SIZE);
2305 return 0;
2306 }
2307
2308 /*
2309 * mixer creation - all stuff is implemented in hda module
2310 */
2311 static int __devinit azx_mixer_create(struct azx *chip)
2312 {
2313 return snd_hda_build_controls(chip->bus);
2314 }
2315
2316
2317 /*
2318 * initialize SD streams
2319 */
2320 static int __devinit azx_init_stream(struct azx *chip)
2321 {
2322 int i;
2323
2324 /* initialize each stream (aka device)
2325 * assign the starting bdl address to each stream (device)
2326 * and initialize
2327 */
2328 for (i = 0; i < chip->num_streams; i++) {
2329 struct azx_dev *azx_dev = &chip->azx_dev[i];
2330 azx_dev->posbuf = (u32 __iomem *)(chip->posbuf.area + i * 8);
2331 /* offset: SDI0=0x80, SDI1=0xa0, ... SDO3=0x160 */
2332 azx_dev->sd_addr = chip->remap_addr + (0x20 * i + 0x80);
2333 /* int mask: SDI0=0x01, SDI1=0x02, ... SDO3=0x80 */
2334 azx_dev->sd_int_sta_mask = 1 << i;
2335 /* stream tag: must be non-zero and unique */
2336 azx_dev->index = i;
2337 azx_dev->stream_tag = i + 1;
2338 }
2339
2340 return 0;
2341 }
2342
2343 static int azx_acquire_irq(struct azx *chip, int do_disconnect)
2344 {
2345 if (request_irq(chip->pci->irq, azx_interrupt,
2346 chip->msi ? 0 : IRQF_SHARED,
2347 KBUILD_MODNAME, chip)) {
2348 printk(KERN_ERR "hda-intel: unable to grab IRQ %d, "
2349 "disabling device\n", chip->pci->irq);
2350 if (do_disconnect)
2351 snd_card_disconnect(chip->card);
2352 return -1;
2353 }
2354 chip->irq = chip->pci->irq;
2355 pci_intx(chip->pci, !chip->msi);
2356 return 0;
2357 }
2358
2359
2360 static void azx_stop_chip(struct azx *chip)
2361 {
2362 if (!chip->initialized)
2363 return;
2364
2365 /* disable interrupts */
2366 azx_int_disable(chip);
2367 azx_int_clear(chip);
2368
2369 /* disable CORB/RIRB */
2370 azx_free_cmd_io(chip);
2371
2372 /* disable position buffer */
2373 azx_writel(chip, DPLBASE, 0);
2374 azx_writel(chip, DPUBASE, 0);
2375
2376 chip->initialized = 0;
2377 }
2378
2379 #ifdef CONFIG_SND_HDA_POWER_SAVE
2380 /* power-up/down the controller */
2381 static void azx_power_notify(struct hda_bus *bus)
2382 {
2383 struct azx *chip = bus->private_data;
2384 struct hda_codec *c;
2385 int power_on = 0;
2386
2387 list_for_each_entry(c, &bus->codec_list, list) {
2388 if (c->power_on) {
2389 power_on = 1;
2390 break;
2391 }
2392 }
2393 if (power_on)
2394 azx_init_chip(chip, 1);
2395 else if (chip->running && power_save_controller &&
2396 !bus->power_keep_link_on)
2397 azx_stop_chip(chip);
2398 }
2399 #endif /* CONFIG_SND_HDA_POWER_SAVE */
2400
2401 #ifdef CONFIG_PM
2402 /*
2403 * power management
2404 */
2405
2406 static int azx_suspend(struct pci_dev *pci, pm_message_t state)
2407 {
2408 struct snd_card *card = pci_get_drvdata(pci);
2409 struct azx *chip = card->private_data;
2410 struct azx_pcm *p;
2411
2412 snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
2413 azx_clear_irq_pending(chip);
2414 list_for_each_entry(p, &chip->pcm_list, list)
2415 snd_pcm_suspend_all(p->pcm);
2416 if (chip->initialized)
2417 snd_hda_suspend(chip->bus);
2418 azx_stop_chip(chip);
2419 if (chip->irq >= 0) {
2420 free_irq(chip->irq, chip);
2421 chip->irq = -1;
2422 }
2423 if (chip->msi)
2424 pci_disable_msi(chip->pci);
2425 pci_disable_device(pci);
2426 pci_save_state(pci);
2427 pci_set_power_state(pci, pci_choose_state(pci, state));
2428 return 0;
2429 }
2430
2431 static int azx_resume(struct pci_dev *pci)
2432 {
2433 struct snd_card *card = pci_get_drvdata(pci);
2434 struct azx *chip = card->private_data;
2435
2436 pci_set_power_state(pci, PCI_D0);
2437 pci_restore_state(pci);
2438 if (pci_enable_device(pci) < 0) {
2439 printk(KERN_ERR "hda-intel: pci_enable_device failed, "
2440 "disabling device\n");
2441 snd_card_disconnect(card);
2442 return -EIO;
2443 }
2444 pci_set_master(pci);
2445 if (chip->msi)
2446 if (pci_enable_msi(pci) < 0)
2447 chip->msi = 0;
2448 if (azx_acquire_irq(chip, 1) < 0)
2449 return -EIO;
2450 azx_init_pci(chip);
2451
2452 azx_init_chip(chip, 1);
2453
2454 snd_hda_resume(chip->bus);
2455 snd_power_change_state(card, SNDRV_CTL_POWER_D0);
2456 return 0;
2457 }
2458 #endif /* CONFIG_PM */
2459
2460
2461 /*
2462 * reboot notifier for hang-up problem at power-down
2463 */
2464 static int azx_halt(struct notifier_block *nb, unsigned long event, void *buf)
2465 {
2466 struct azx *chip = container_of(nb, struct azx, reboot_notifier);
2467 snd_hda_bus_reboot_notify(chip->bus);
2468 azx_stop_chip(chip);
2469 return NOTIFY_OK;
2470 }
2471
2472 static void azx_notifier_register(struct azx *chip)
2473 {
2474 chip->reboot_notifier.notifier_call = azx_halt;
2475 register_reboot_notifier(&chip->reboot_notifier);
2476 }
2477
2478 static void azx_notifier_unregister(struct azx *chip)
2479 {
2480 if (chip->reboot_notifier.notifier_call)
2481 unregister_reboot_notifier(&chip->reboot_notifier);
2482 }
2483
2484 static int DELAYED_INIT_MARK azx_first_init(struct azx *chip);
2485 static int DELAYED_INIT_MARK azx_probe_continue(struct azx *chip);
2486
2487 static struct pci_dev __devinit *get_bound_vga(struct pci_dev *pci);
2488
2489 #ifdef SUPPORT_VGA_SWITCHEROO
2490 static void azx_vs_set_state(struct pci_dev *pci,
2491 enum vga_switcheroo_state state)
2492 {
2493 struct snd_card *card = pci_get_drvdata(pci);
2494 struct azx *chip = card->private_data;
2495 bool disabled;
2496
2497 if (chip->init_failed)
2498 return;
2499
2500 disabled = (state == VGA_SWITCHEROO_OFF);
2501 if (chip->disabled == disabled)
2502 return;
2503
2504 if (!chip->bus) {
2505 chip->disabled = disabled;
2506 if (!disabled) {
2507 snd_printk(KERN_INFO SFX
2508 "%s: Start delayed initialization\n",
2509 pci_name(chip->pci));
2510 if (azx_first_init(chip) < 0 ||
2511 azx_probe_continue(chip) < 0) {
2512 snd_printk(KERN_ERR SFX
2513 "%s: initialization error\n",
2514 pci_name(chip->pci));
2515 chip->init_failed = true;
2516 }
2517 }
2518 } else {
2519 snd_printk(KERN_INFO SFX
2520 "%s %s via VGA-switcheroo\n",
2521 disabled ? "Disabling" : "Enabling",
2522 pci_name(chip->pci));
2523 if (disabled) {
2524 azx_suspend(pci, PMSG_FREEZE);
2525 chip->disabled = true;
2526 snd_hda_lock_devices(chip->bus);
2527 } else {
2528 snd_hda_unlock_devices(chip->bus);
2529 chip->disabled = false;
2530 azx_resume(pci);
2531 }
2532 }
2533 }
2534
2535 static bool azx_vs_can_switch(struct pci_dev *pci)
2536 {
2537 struct snd_card *card = pci_get_drvdata(pci);
2538 struct azx *chip = card->private_data;
2539
2540 if (chip->init_failed)
2541 return false;
2542 if (chip->disabled || !chip->bus)
2543 return true;
2544 if (snd_hda_lock_devices(chip->bus))
2545 return false;
2546 snd_hda_unlock_devices(chip->bus);
2547 return true;
2548 }
2549
2550 static void __devinit init_vga_switcheroo(struct azx *chip)
2551 {
2552 struct pci_dev *p = get_bound_vga(chip->pci);
2553 if (p) {
2554 snd_printk(KERN_INFO SFX
2555 "%s: Handle VGA-switcheroo audio client\n",
2556 pci_name(chip->pci));
2557 chip->use_vga_switcheroo = 1;
2558 pci_dev_put(p);
2559 }
2560 }
2561
2562 static const struct vga_switcheroo_client_ops azx_vs_ops = {
2563 .set_gpu_state = azx_vs_set_state,
2564 .can_switch = azx_vs_can_switch,
2565 };
2566
2567 static int __devinit register_vga_switcheroo(struct azx *chip)
2568 {
2569 if (!chip->use_vga_switcheroo)
2570 return 0;
2571 /* FIXME: currently only handling DIS controller
2572 * is there any machine with two switchable HDMI audio controllers?
2573 */
2574 return vga_switcheroo_register_audio_client(chip->pci, &azx_vs_ops,
2575 VGA_SWITCHEROO_DIS,
2576 chip->bus != NULL);
2577 }
2578 #else
2579 #define init_vga_switcheroo(chip) /* NOP */
2580 #define register_vga_switcheroo(chip) 0
2581 #endif /* SUPPORT_VGA_SWITCHER */
2582
2583 /*
2584 * destructor
2585 */
2586 static int azx_free(struct azx *chip)
2587 {
2588 int i;
2589
2590 azx_notifier_unregister(chip);
2591
2592 if (use_vga_switcheroo(chip)) {
2593 if (chip->disabled && chip->bus)
2594 snd_hda_unlock_devices(chip->bus);
2595 vga_switcheroo_unregister_client(chip->pci);
2596 }
2597
2598 if (chip->initialized) {
2599 azx_clear_irq_pending(chip);
2600 for (i = 0; i < chip->num_streams; i++)
2601 azx_stream_stop(chip, &chip->azx_dev[i]);
2602 azx_stop_chip(chip);
2603 }
2604
2605 if (chip->irq >= 0)
2606 free_irq(chip->irq, (void*)chip);
2607 if (chip->msi)
2608 pci_disable_msi(chip->pci);
2609 if (chip->remap_addr)
2610 iounmap(chip->remap_addr);
2611
2612 if (chip->azx_dev) {
2613 for (i = 0; i < chip->num_streams; i++)
2614 if (chip->azx_dev[i].bdl.area) {
2615 mark_pages_wc(chip, &chip->azx_dev[i].bdl, false);
2616 snd_dma_free_pages(&chip->azx_dev[i].bdl);
2617 }
2618 }
2619 if (chip->rb.area) {
2620 mark_pages_wc(chip, &chip->rb, false);
2621 snd_dma_free_pages(&chip->rb);
2622 }
2623 if (chip->posbuf.area) {
2624 mark_pages_wc(chip, &chip->posbuf, false);
2625 snd_dma_free_pages(&chip->posbuf);
2626 }
2627 if (chip->region_requested)
2628 pci_release_regions(chip->pci);
2629 pci_disable_device(chip->pci);
2630 kfree(chip->azx_dev);
2631 kfree(chip);
2632
2633 return 0;
2634 }
2635
2636 static int azx_dev_free(struct snd_device *device)
2637 {
2638 return azx_free(device->device_data);
2639 }
2640
2641 /*
2642 * Check of disabled HDMI controller by vga-switcheroo
2643 */
2644 static struct pci_dev __devinit *get_bound_vga(struct pci_dev *pci)
2645 {
2646 struct pci_dev *p;
2647
2648 /* check only discrete GPU */
2649 switch (pci->vendor) {
2650 case PCI_VENDOR_ID_ATI:
2651 case PCI_VENDOR_ID_AMD:
2652 case PCI_VENDOR_ID_NVIDIA:
2653 if (pci->devfn == 1) {
2654 p = pci_get_domain_bus_and_slot(pci_domain_nr(pci->bus),
2655 pci->bus->number, 0);
2656 if (p) {
2657 if ((p->class >> 8) == PCI_CLASS_DISPLAY_VGA)
2658 return p;
2659 pci_dev_put(p);
2660 }
2661 }
2662 break;
2663 }
2664 return NULL;
2665 }
2666
2667 static bool __devinit check_hdmi_disabled(struct pci_dev *pci)
2668 {
2669 bool vga_inactive = false;
2670 struct pci_dev *p = get_bound_vga(pci);
2671
2672 if (p) {
2673 if (vga_default_device() && p != vga_default_device())
2674 vga_inactive = true;
2675 pci_dev_put(p);
2676 }
2677 return vga_inactive;
2678 }
2679
2680 /*
2681 * white/black-listing for position_fix
2682 */
2683 static struct snd_pci_quirk position_fix_list[] __devinitdata = {
2684 SND_PCI_QUIRK(0x1028, 0x01cc, "Dell D820", POS_FIX_LPIB),
2685 SND_PCI_QUIRK(0x1028, 0x01de, "Dell Precision 390", POS_FIX_LPIB),
2686 SND_PCI_QUIRK(0x103c, 0x306d, "HP dv3", POS_FIX_LPIB),
2687 SND_PCI_QUIRK(0x1043, 0x813d, "ASUS P5AD2", POS_FIX_LPIB),
2688 SND_PCI_QUIRK(0x1043, 0x81b3, "ASUS", POS_FIX_LPIB),
2689 SND_PCI_QUIRK(0x1043, 0x81e7, "ASUS M2V", POS_FIX_LPIB),
2690 SND_PCI_QUIRK(0x104d, 0x9069, "Sony VPCS11V9E", POS_FIX_LPIB),
2691 SND_PCI_QUIRK(0x10de, 0xcb89, "Macbook Pro 7,1", POS_FIX_LPIB),
2692 SND_PCI_QUIRK(0x1297, 0x3166, "Shuttle", POS_FIX_LPIB),
2693 SND_PCI_QUIRK(0x1458, 0xa022, "ga-ma770-ud3", POS_FIX_LPIB),
2694 SND_PCI_QUIRK(0x1462, 0x1002, "MSI Wind U115", POS_FIX_LPIB),
2695 SND_PCI_QUIRK(0x1565, 0x8218, "Biostar Microtech", POS_FIX_LPIB),
2696 SND_PCI_QUIRK(0x1849, 0x0888, "775Dual-VSTA", POS_FIX_LPIB),
2697 SND_PCI_QUIRK(0x8086, 0x2503, "DG965OT AAD63733-203", POS_FIX_LPIB),
2698 {}
2699 };
2700
2701 static int __devinit check_position_fix(struct azx *chip, int fix)
2702 {
2703 const struct snd_pci_quirk *q;
2704
2705 switch (fix) {
2706 case POS_FIX_LPIB:
2707 case POS_FIX_POSBUF:
2708 case POS_FIX_VIACOMBO:
2709 case POS_FIX_COMBO:
2710 return fix;
2711 }
2712
2713 q = snd_pci_quirk_lookup(chip->pci, position_fix_list);
2714 if (q) {
2715 printk(KERN_INFO
2716 "hda_intel: position_fix set to %d "
2717 "for device %04x:%04x\n",
2718 q->value, q->subvendor, q->subdevice);
2719 return q->value;
2720 }
2721
2722 /* Check VIA/ATI HD Audio Controller exist */
2723 if (chip->driver_caps & AZX_DCAPS_POSFIX_VIA) {
2724 snd_printd(SFX "Using VIACOMBO position fix\n");
2725 return POS_FIX_VIACOMBO;
2726 }
2727 if (chip->driver_caps & AZX_DCAPS_POSFIX_LPIB) {
2728 snd_printd(SFX "Using LPIB position fix\n");
2729 return POS_FIX_LPIB;
2730 }
2731 return POS_FIX_AUTO;
2732 }
2733
2734 /*
2735 * black-lists for probe_mask
2736 */
2737 static struct snd_pci_quirk probe_mask_list[] __devinitdata = {
2738 /* Thinkpad often breaks the controller communication when accessing
2739 * to the non-working (or non-existing) modem codec slot.
2740 */
2741 SND_PCI_QUIRK(0x1014, 0x05b7, "Thinkpad Z60", 0x01),
2742 SND_PCI_QUIRK(0x17aa, 0x2010, "Thinkpad X/T/R60", 0x01),
2743 SND_PCI_QUIRK(0x17aa, 0x20ac, "Thinkpad X/T/R61", 0x01),
2744 /* broken BIOS */
2745 SND_PCI_QUIRK(0x1028, 0x20ac, "Dell Studio Desktop", 0x01),
2746 /* including bogus ALC268 in slot#2 that conflicts with ALC888 */
2747 SND_PCI_QUIRK(0x17c0, 0x4085, "Medion MD96630", 0x01),
2748 /* forced codec slots */
2749 SND_PCI_QUIRK(0x1043, 0x1262, "ASUS W5Fm", 0x103),
2750 SND_PCI_QUIRK(0x1046, 0x1262, "ASUS W5F", 0x103),
2751 /* WinFast VP200 H (Teradici) user reported broken communication */
2752 SND_PCI_QUIRK(0x3a21, 0x040d, "WinFast VP200 H", 0x101),
2753 {}
2754 };
2755
2756 #define AZX_FORCE_CODEC_MASK 0x100
2757
2758 static void __devinit check_probe_mask(struct azx *chip, int dev)
2759 {
2760 const struct snd_pci_quirk *q;
2761
2762 chip->codec_probe_mask = probe_mask[dev];
2763 if (chip->codec_probe_mask == -1) {
2764 q = snd_pci_quirk_lookup(chip->pci, probe_mask_list);
2765 if (q) {
2766 printk(KERN_INFO
2767 "hda_intel: probe_mask set to 0x%x "
2768 "for device %04x:%04x\n",
2769 q->value, q->subvendor, q->subdevice);
2770 chip->codec_probe_mask = q->value;
2771 }
2772 }
2773
2774 /* check forced option */
2775 if (chip->codec_probe_mask != -1 &&
2776 (chip->codec_probe_mask & AZX_FORCE_CODEC_MASK)) {
2777 chip->codec_mask = chip->codec_probe_mask & 0xff;
2778 printk(KERN_INFO "hda_intel: codec_mask forced to 0x%x\n",
2779 chip->codec_mask);
2780 }
2781 }
2782
2783 /*
2784 * white/black-list for enable_msi
2785 */
2786 static struct snd_pci_quirk msi_black_list[] __devinitdata = {
2787 SND_PCI_QUIRK(0x1043, 0x81f2, "ASUS", 0), /* Athlon64 X2 + nvidia */
2788 SND_PCI_QUIRK(0x1043, 0x81f6, "ASUS", 0), /* nvidia */
2789 SND_PCI_QUIRK(0x1043, 0x822d, "ASUS", 0), /* Athlon64 X2 + nvidia MCP55 */
2790 SND_PCI_QUIRK(0x1849, 0x0888, "ASRock", 0), /* Athlon64 X2 + nvidia */
2791 SND_PCI_QUIRK(0xa0a0, 0x0575, "Aopen MZ915-M", 0), /* ICH6 */
2792 {}
2793 };
2794
2795 static void __devinit check_msi(struct azx *chip)
2796 {
2797 const struct snd_pci_quirk *q;
2798
2799 if (enable_msi >= 0) {
2800 chip->msi = !!enable_msi;
2801 return;
2802 }
2803 chip->msi = 1; /* enable MSI as default */
2804 q = snd_pci_quirk_lookup(chip->pci, msi_black_list);
2805 if (q) {
2806 printk(KERN_INFO
2807 "hda_intel: msi for device %04x:%04x set to %d\n",
2808 q->subvendor, q->subdevice, q->value);
2809 chip->msi = q->value;
2810 return;
2811 }
2812
2813 /* NVidia chipsets seem to cause troubles with MSI */
2814 if (chip->driver_caps & AZX_DCAPS_NO_MSI) {
2815 printk(KERN_INFO "hda_intel: Disabling MSI\n");
2816 chip->msi = 0;
2817 }
2818 }
2819
2820 /* check the snoop mode availability */
2821 static void __devinit azx_check_snoop_available(struct azx *chip)
2822 {
2823 bool snoop = chip->snoop;
2824
2825 switch (chip->driver_type) {
2826 case AZX_DRIVER_VIA:
2827 /* force to non-snoop mode for a new VIA controller
2828 * when BIOS is set
2829 */
2830 if (snoop) {
2831 u8 val;
2832 pci_read_config_byte(chip->pci, 0x42, &val);
2833 if (!(val & 0x80) && chip->pci->revision == 0x30)
2834 snoop = false;
2835 }
2836 break;
2837 case AZX_DRIVER_ATIHDMI_NS:
2838 /* new ATI HDMI requires non-snoop */
2839 snoop = false;
2840 break;
2841 }
2842
2843 if (snoop != chip->snoop) {
2844 snd_printk(KERN_INFO SFX "Force to %s mode\n",
2845 snoop ? "snoop" : "non-snoop");
2846 chip->snoop = snoop;
2847 }
2848 }
2849
2850 /*
2851 * constructor
2852 */
2853 static int __devinit azx_create(struct snd_card *card, struct pci_dev *pci,
2854 int dev, unsigned int driver_caps,
2855 struct azx **rchip)
2856 {
2857 static struct snd_device_ops ops = {
2858 .dev_free = azx_dev_free,
2859 };
2860 struct azx *chip;
2861 int err;
2862
2863 *rchip = NULL;
2864
2865 err = pci_enable_device(pci);
2866 if (err < 0)
2867 return err;
2868
2869 chip = kzalloc(sizeof(*chip), GFP_KERNEL);
2870 if (!chip) {
2871 snd_printk(KERN_ERR SFX "cannot allocate chip\n");
2872 pci_disable_device(pci);
2873 return -ENOMEM;
2874 }
2875
2876 spin_lock_init(&chip->reg_lock);
2877 mutex_init(&chip->open_mutex);
2878 chip->card = card;
2879 chip->pci = pci;
2880 chip->irq = -1;
2881 chip->driver_caps = driver_caps;
2882 chip->driver_type = driver_caps & 0xff;
2883 check_msi(chip);
2884 chip->dev_index = dev;
2885 INIT_WORK(&chip->irq_pending_work, azx_irq_pending_work);
2886 INIT_LIST_HEAD(&chip->pcm_list);
2887 init_vga_switcheroo(chip);
2888
2889 chip->position_fix[0] = chip->position_fix[1] =
2890 check_position_fix(chip, position_fix[dev]);
2891 /* combo mode uses LPIB for playback */
2892 if (chip->position_fix[0] == POS_FIX_COMBO) {
2893 chip->position_fix[0] = POS_FIX_LPIB;
2894 chip->position_fix[1] = POS_FIX_AUTO;
2895 }
2896
2897 check_probe_mask(chip, dev);
2898
2899 chip->single_cmd = single_cmd;
2900 chip->snoop = hda_snoop;
2901 azx_check_snoop_available(chip);
2902
2903 if (bdl_pos_adj[dev] < 0) {
2904 switch (chip->driver_type) {
2905 case AZX_DRIVER_ICH:
2906 case AZX_DRIVER_PCH:
2907 bdl_pos_adj[dev] = 1;
2908 break;
2909 default:
2910 bdl_pos_adj[dev] = 32;
2911 break;
2912 }
2913 }
2914
2915 if (check_hdmi_disabled(pci)) {
2916 snd_printk(KERN_INFO SFX "VGA controller for %s is disabled\n",
2917 pci_name(pci));
2918 if (use_vga_switcheroo(chip)) {
2919 snd_printk(KERN_INFO SFX "Delaying initialization\n");
2920 chip->disabled = true;
2921 goto ok;
2922 }
2923 kfree(chip);
2924 pci_disable_device(pci);
2925 return -ENXIO;
2926 }
2927
2928 err = azx_first_init(chip);
2929 if (err < 0) {
2930 azx_free(chip);
2931 return err;
2932 }
2933
2934 ok:
2935 err = register_vga_switcheroo(chip);
2936 if (err < 0) {
2937 snd_printk(KERN_ERR SFX
2938 "Error registering VGA-switcheroo client\n");
2939 azx_free(chip);
2940 return err;
2941 }
2942
2943 err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
2944 if (err < 0) {
2945 snd_printk(KERN_ERR SFX "Error creating device [card]!\n");
2946 azx_free(chip);
2947 return err;
2948 }
2949
2950 *rchip = chip;
2951 return 0;
2952 }
2953
2954 static int DELAYED_INIT_MARK azx_first_init(struct azx *chip)
2955 {
2956 int dev = chip->dev_index;
2957 struct pci_dev *pci = chip->pci;
2958 struct snd_card *card = chip->card;
2959 int i, err;
2960 unsigned short gcap;
2961
2962 #if BITS_PER_LONG != 64
2963 /* Fix up base address on ULI M5461 */
2964 if (chip->driver_type == AZX_DRIVER_ULI) {
2965 u16 tmp3;
2966 pci_read_config_word(pci, 0x40, &tmp3);
2967 pci_write_config_word(pci, 0x40, tmp3 | 0x10);
2968 pci_write_config_dword(pci, PCI_BASE_ADDRESS_1, 0);
2969 }
2970 #endif
2971
2972 err = pci_request_regions(pci, "ICH HD audio");
2973 if (err < 0)
2974 return err;
2975 chip->region_requested = 1;
2976
2977 chip->addr = pci_resource_start(pci, 0);
2978 chip->remap_addr = pci_ioremap_bar(pci, 0);
2979 if (chip->remap_addr == NULL) {
2980 snd_printk(KERN_ERR SFX "ioremap error\n");
2981 return -ENXIO;
2982 }
2983
2984 if (chip->msi)
2985 if (pci_enable_msi(pci) < 0)
2986 chip->msi = 0;
2987
2988 if (azx_acquire_irq(chip, 0) < 0)
2989 return -EBUSY;
2990
2991 pci_set_master(pci);
2992 synchronize_irq(chip->irq);
2993
2994 gcap = azx_readw(chip, GCAP);
2995 snd_printdd(SFX "chipset global capabilities = 0x%x\n", gcap);
2996
2997 /* disable SB600 64bit support for safety */
2998 if (chip->pci->vendor == PCI_VENDOR_ID_ATI) {
2999 struct pci_dev *p_smbus;
3000 p_smbus = pci_get_device(PCI_VENDOR_ID_ATI,
3001 PCI_DEVICE_ID_ATI_SBX00_SMBUS,
3002 NULL);
3003 if (p_smbus) {
3004 if (p_smbus->revision < 0x30)
3005 gcap &= ~ICH6_GCAP_64OK;
3006 pci_dev_put(p_smbus);
3007 }
3008 }
3009
3010 /* disable 64bit DMA address on some devices */
3011 if (chip->driver_caps & AZX_DCAPS_NO_64BIT) {
3012 snd_printd(SFX "Disabling 64bit DMA\n");
3013 gcap &= ~ICH6_GCAP_64OK;
3014 }
3015
3016 /* disable buffer size rounding to 128-byte multiples if supported */
3017 if (align_buffer_size >= 0)
3018 chip->align_buffer_size = !!align_buffer_size;
3019 else {
3020 if (chip->driver_caps & AZX_DCAPS_BUFSIZE)
3021 chip->align_buffer_size = 0;
3022 else if (chip->driver_caps & AZX_DCAPS_ALIGN_BUFSIZE)
3023 chip->align_buffer_size = 1;
3024 else
3025 chip->align_buffer_size = 1;
3026 }
3027
3028 /* allow 64bit DMA address if supported by H/W */
3029 if ((gcap & ICH6_GCAP_64OK) && !pci_set_dma_mask(pci, DMA_BIT_MASK(64)))
3030 pci_set_consistent_dma_mask(pci, DMA_BIT_MASK(64));
3031 else {
3032 pci_set_dma_mask(pci, DMA_BIT_MASK(32));
3033 pci_set_consistent_dma_mask(pci, DMA_BIT_MASK(32));
3034 }
3035
3036 /* read number of streams from GCAP register instead of using
3037 * hardcoded value
3038 */
3039 chip->capture_streams = (gcap >> 8) & 0x0f;
3040 chip->playback_streams = (gcap >> 12) & 0x0f;
3041 if (!chip->playback_streams && !chip->capture_streams) {
3042 /* gcap didn't give any info, switching to old method */
3043
3044 switch (chip->driver_type) {
3045 case AZX_DRIVER_ULI:
3046 chip->playback_streams = ULI_NUM_PLAYBACK;
3047 chip->capture_streams = ULI_NUM_CAPTURE;
3048 break;
3049 case AZX_DRIVER_ATIHDMI:
3050 case AZX_DRIVER_ATIHDMI_NS:
3051 chip->playback_streams = ATIHDMI_NUM_PLAYBACK;
3052 chip->capture_streams = ATIHDMI_NUM_CAPTURE;
3053 break;
3054 case AZX_DRIVER_GENERIC:
3055 default:
3056 chip->playback_streams = ICH6_NUM_PLAYBACK;
3057 chip->capture_streams = ICH6_NUM_CAPTURE;
3058 break;
3059 }
3060 }
3061 chip->capture_index_offset = 0;
3062 chip->playback_index_offset = chip->capture_streams;
3063 chip->num_streams = chip->playback_streams + chip->capture_streams;
3064 chip->azx_dev = kcalloc(chip->num_streams, sizeof(*chip->azx_dev),
3065 GFP_KERNEL);
3066 if (!chip->azx_dev) {
3067 snd_printk(KERN_ERR SFX "cannot malloc azx_dev\n");
3068 return -ENOMEM;
3069 }
3070
3071 for (i = 0; i < chip->num_streams; i++) {
3072 /* allocate memory for the BDL for each stream */
3073 err = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV,
3074 snd_dma_pci_data(chip->pci),
3075 BDL_SIZE, &chip->azx_dev[i].bdl);
3076 if (err < 0) {
3077 snd_printk(KERN_ERR SFX "cannot allocate BDL\n");
3078 return -ENOMEM;
3079 }
3080 mark_pages_wc(chip, &chip->azx_dev[i].bdl, true);
3081 }
3082 /* allocate memory for the position buffer */
3083 err = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV,
3084 snd_dma_pci_data(chip->pci),
3085 chip->num_streams * 8, &chip->posbuf);
3086 if (err < 0) {
3087 snd_printk(KERN_ERR SFX "cannot allocate posbuf\n");
3088 return -ENOMEM;
3089 }
3090 mark_pages_wc(chip, &chip->posbuf, true);
3091 /* allocate CORB/RIRB */
3092 err = azx_alloc_cmd_io(chip);
3093 if (err < 0)
3094 return err;
3095
3096 /* initialize streams */
3097 azx_init_stream(chip);
3098
3099 /* initialize chip */
3100 azx_init_pci(chip);
3101 azx_init_chip(chip, (probe_only[dev] & 2) == 0);
3102
3103 /* codec detection */
3104 if (!chip->codec_mask) {
3105 snd_printk(KERN_ERR SFX "no codecs found!\n");
3106 return -ENODEV;
3107 }
3108
3109 strcpy(card->driver, "HDA-Intel");
3110 strlcpy(card->shortname, driver_short_names[chip->driver_type],
3111 sizeof(card->shortname));
3112 snprintf(card->longname, sizeof(card->longname),
3113 "%s at 0x%lx irq %i",
3114 card->shortname, chip->addr, chip->irq);
3115
3116 return 0;
3117 }
3118
3119 static void power_down_all_codecs(struct azx *chip)
3120 {
3121 #ifdef CONFIG_SND_HDA_POWER_SAVE
3122 /* The codecs were powered up in snd_hda_codec_new().
3123 * Now all initialization done, so turn them down if possible
3124 */
3125 struct hda_codec *codec;
3126 list_for_each_entry(codec, &chip->bus->codec_list, list) {
3127 snd_hda_power_down(codec);
3128 }
3129 #endif
3130 }
3131
3132 static int __devinit azx_probe(struct pci_dev *pci,
3133 const struct pci_device_id *pci_id)
3134 {
3135 static int dev;
3136 struct snd_card *card;
3137 struct azx *chip;
3138 int err;
3139
3140 if (dev >= SNDRV_CARDS)
3141 return -ENODEV;
3142 if (!enable[dev]) {
3143 dev++;
3144 return -ENOENT;
3145 }
3146
3147 err = snd_card_create(index[dev], id[dev], THIS_MODULE, 0, &card);
3148 if (err < 0) {
3149 snd_printk(KERN_ERR SFX "Error creating card!\n");
3150 return err;
3151 }
3152
3153 /* set this here since it's referred in snd_hda_load_patch() */
3154 snd_card_set_dev(card, &pci->dev);
3155
3156 err = azx_create(card, pci, dev, pci_id->driver_data, &chip);
3157 if (err < 0)
3158 goto out_free;
3159 card->private_data = chip;
3160
3161 if (!chip->disabled) {
3162 err = azx_probe_continue(chip);
3163 if (err < 0)
3164 goto out_free;
3165 }
3166
3167 pci_set_drvdata(pci, card);
3168
3169 dev++;
3170 return 0;
3171
3172 out_free:
3173 snd_card_free(card);
3174 return err;
3175 }
3176
3177 static int DELAYED_INIT_MARK azx_probe_continue(struct azx *chip)
3178 {
3179 int dev = chip->dev_index;
3180 int err;
3181
3182 #ifdef CONFIG_SND_HDA_INPUT_BEEP
3183 chip->beep_mode = beep_mode[dev];
3184 #endif
3185
3186 /* create codec instances */
3187 err = azx_codec_create(chip, model[dev]);
3188 if (err < 0)
3189 goto out_free;
3190 #ifdef CONFIG_SND_HDA_PATCH_LOADER
3191 if (patch[dev] && *patch[dev]) {
3192 snd_printk(KERN_ERR SFX "Applying patch firmware '%s'\n",
3193 patch[dev]);
3194 err = snd_hda_load_patch(chip->bus, patch[dev]);
3195 if (err < 0)
3196 goto out_free;
3197 }
3198 #endif
3199 if ((probe_only[dev] & 1) == 0) {
3200 err = azx_codec_configure(chip);
3201 if (err < 0)
3202 goto out_free;
3203 }
3204
3205 /* create PCM streams */
3206 err = snd_hda_build_pcms(chip->bus);
3207 if (err < 0)
3208 goto out_free;
3209
3210 /* create mixer controls */
3211 err = azx_mixer_create(chip);
3212 if (err < 0)
3213 goto out_free;
3214
3215 err = snd_card_register(chip->card);
3216 if (err < 0)
3217 goto out_free;
3218
3219 chip->running = 1;
3220 power_down_all_codecs(chip);
3221 azx_notifier_register(chip);
3222
3223 return 0;
3224
3225 out_free:
3226 chip->init_failed = 1;
3227 return err;
3228 }
3229
3230 static void __devexit azx_remove(struct pci_dev *pci)
3231 {
3232 struct snd_card *card = pci_get_drvdata(pci);
3233 if (card)
3234 snd_card_free(card);
3235 pci_set_drvdata(pci, NULL);
3236 }
3237
3238 /* PCI IDs */
3239 static DEFINE_PCI_DEVICE_TABLE(azx_ids) = {
3240 /* CPT */
3241 { PCI_DEVICE(0x8086, 0x1c20),
3242 .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_SCH_SNOOP |
3243 AZX_DCAPS_BUFSIZE },
3244 /* PBG */
3245 { PCI_DEVICE(0x8086, 0x1d20),
3246 .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_SCH_SNOOP |
3247 AZX_DCAPS_BUFSIZE},
3248 /* Panther Point */
3249 { PCI_DEVICE(0x8086, 0x1e20),
3250 .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_SCH_SNOOP |
3251 AZX_DCAPS_BUFSIZE},
3252 /* Lynx Point */
3253 { PCI_DEVICE(0x8086, 0x8c20),
3254 .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_SCH_SNOOP |
3255 AZX_DCAPS_BUFSIZE},
3256 /* SCH */
3257 { PCI_DEVICE(0x8086, 0x811b),
3258 .driver_data = AZX_DRIVER_SCH | AZX_DCAPS_SCH_SNOOP |
3259 AZX_DCAPS_BUFSIZE | AZX_DCAPS_POSFIX_LPIB }, /* Poulsbo */
3260 { PCI_DEVICE(0x8086, 0x080a),
3261 .driver_data = AZX_DRIVER_SCH | AZX_DCAPS_SCH_SNOOP |
3262 AZX_DCAPS_BUFSIZE | AZX_DCAPS_POSFIX_LPIB }, /* Oaktrail */
3263 /* ICH */
3264 { PCI_DEVICE(0x8086, 0x2668),
3265 .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_OLD_SSYNC |
3266 AZX_DCAPS_BUFSIZE }, /* ICH6 */
3267 { PCI_DEVICE(0x8086, 0x27d8),
3268 .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_OLD_SSYNC |
3269 AZX_DCAPS_BUFSIZE }, /* ICH7 */
3270 { PCI_DEVICE(0x8086, 0x269a),
3271 .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_OLD_SSYNC |
3272 AZX_DCAPS_BUFSIZE }, /* ESB2 */
3273 { PCI_DEVICE(0x8086, 0x284b),
3274 .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_OLD_SSYNC |
3275 AZX_DCAPS_BUFSIZE }, /* ICH8 */
3276 { PCI_DEVICE(0x8086, 0x293e),
3277 .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_OLD_SSYNC |
3278 AZX_DCAPS_BUFSIZE }, /* ICH9 */
3279 { PCI_DEVICE(0x8086, 0x293f),
3280 .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_OLD_SSYNC |
3281 AZX_DCAPS_BUFSIZE }, /* ICH9 */
3282 { PCI_DEVICE(0x8086, 0x3a3e),
3283 .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_OLD_SSYNC |
3284 AZX_DCAPS_BUFSIZE }, /* ICH10 */
3285 { PCI_DEVICE(0x8086, 0x3a6e),
3286 .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_OLD_SSYNC |
3287 AZX_DCAPS_BUFSIZE }, /* ICH10 */
3288 /* Generic Intel */
3289 { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_ANY_ID),
3290 .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
3291 .class_mask = 0xffffff,
3292 .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_BUFSIZE },
3293 /* ATI SB 450/600/700/800/900 */
3294 { PCI_DEVICE(0x1002, 0x437b),
3295 .driver_data = AZX_DRIVER_ATI | AZX_DCAPS_PRESET_ATI_SB },
3296 { PCI_DEVICE(0x1002, 0x4383),
3297 .driver_data = AZX_DRIVER_ATI | AZX_DCAPS_PRESET_ATI_SB },
3298 /* AMD Hudson */
3299 { PCI_DEVICE(0x1022, 0x780d),
3300 .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_ATI_SB },
3301 /* ATI HDMI */
3302 { PCI_DEVICE(0x1002, 0x793b),
3303 .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
3304 { PCI_DEVICE(0x1002, 0x7919),
3305 .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
3306 { PCI_DEVICE(0x1002, 0x960f),
3307 .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
3308 { PCI_DEVICE(0x1002, 0x970f),
3309 .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
3310 { PCI_DEVICE(0x1002, 0xaa00),
3311 .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
3312 { PCI_DEVICE(0x1002, 0xaa08),
3313 .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
3314 { PCI_DEVICE(0x1002, 0xaa10),
3315 .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
3316 { PCI_DEVICE(0x1002, 0xaa18),
3317 .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
3318 { PCI_DEVICE(0x1002, 0xaa20),
3319 .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
3320 { PCI_DEVICE(0x1002, 0xaa28),
3321 .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
3322 { PCI_DEVICE(0x1002, 0xaa30),
3323 .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
3324 { PCI_DEVICE(0x1002, 0xaa38),
3325 .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
3326 { PCI_DEVICE(0x1002, 0xaa40),
3327 .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
3328 { PCI_DEVICE(0x1002, 0xaa48),
3329 .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
3330 { PCI_DEVICE(0x1002, 0x9902),
3331 .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI },
3332 { PCI_DEVICE(0x1002, 0xaaa0),
3333 .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI },
3334 { PCI_DEVICE(0x1002, 0xaaa8),
3335 .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI },
3336 { PCI_DEVICE(0x1002, 0xaab0),
3337 .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI },
3338 /* VIA VT8251/VT8237A */
3339 { PCI_DEVICE(0x1106, 0x3288),
3340 .driver_data = AZX_DRIVER_VIA | AZX_DCAPS_POSFIX_VIA },
3341 /* SIS966 */
3342 { PCI_DEVICE(0x1039, 0x7502), .driver_data = AZX_DRIVER_SIS },
3343 /* ULI M5461 */
3344 { PCI_DEVICE(0x10b9, 0x5461), .driver_data = AZX_DRIVER_ULI },
3345 /* NVIDIA MCP */
3346 { PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID),
3347 .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
3348 .class_mask = 0xffffff,
3349 .driver_data = AZX_DRIVER_NVIDIA | AZX_DCAPS_PRESET_NVIDIA },
3350 /* Teradici */
3351 { PCI_DEVICE(0x6549, 0x1200),
3352 .driver_data = AZX_DRIVER_TERA | AZX_DCAPS_NO_64BIT },
3353 /* Creative X-Fi (CA0110-IBG) */
3354 #if !defined(CONFIG_SND_CTXFI) && !defined(CONFIG_SND_CTXFI_MODULE)
3355 /* the following entry conflicts with snd-ctxfi driver,
3356 * as ctxfi driver mutates from HD-audio to native mode with
3357 * a special command sequence.
3358 */
3359 { PCI_DEVICE(PCI_VENDOR_ID_CREATIVE, PCI_ANY_ID),
3360 .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
3361 .class_mask = 0xffffff,
3362 .driver_data = AZX_DRIVER_CTX | AZX_DCAPS_CTX_WORKAROUND |
3363 AZX_DCAPS_RIRB_PRE_DELAY | AZX_DCAPS_POSFIX_LPIB },
3364 #else
3365 /* this entry seems still valid -- i.e. without emu20kx chip */
3366 { PCI_DEVICE(0x1102, 0x0009),
3367 .driver_data = AZX_DRIVER_CTX | AZX_DCAPS_CTX_WORKAROUND |
3368 AZX_DCAPS_RIRB_PRE_DELAY | AZX_DCAPS_POSFIX_LPIB },
3369 #endif
3370 /* CTHDA chips */
3371 { PCI_DEVICE(0x1102, 0x0010),
3372 .driver_data = AZX_DRIVER_CTHDA | AZX_DCAPS_PRESET_CTHDA },
3373 { PCI_DEVICE(0x1102, 0x0012),
3374 .driver_data = AZX_DRIVER_CTHDA | AZX_DCAPS_PRESET_CTHDA },
3375 /* Vortex86MX */
3376 { PCI_DEVICE(0x17f3, 0x3010), .driver_data = AZX_DRIVER_GENERIC },
3377 /* VMware HDAudio */
3378 { PCI_DEVICE(0x15ad, 0x1977), .driver_data = AZX_DRIVER_GENERIC },
3379 /* AMD/ATI Generic, PCI class code and Vendor ID for HD Audio */
3380 { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_ANY_ID),
3381 .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
3382 .class_mask = 0xffffff,
3383 .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_ATI_HDMI },
3384 { PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_ANY_ID),
3385 .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
3386 .class_mask = 0xffffff,
3387 .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_ATI_HDMI },
3388 { 0, }
3389 };
3390 MODULE_DEVICE_TABLE(pci, azx_ids);
3391
3392 /* pci_driver definition */
3393 static struct pci_driver azx_driver = {
3394 .name = KBUILD_MODNAME,
3395 .id_table = azx_ids,
3396 .probe = azx_probe,
3397 .remove = __devexit_p(azx_remove),
3398 #ifdef CONFIG_PM
3399 .suspend = azx_suspend,
3400 .resume = azx_resume,
3401 #endif
3402 };
3403
3404 module_pci_driver(azx_driver);
Linux 2.6 libata-dev (mirror)