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Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
[deliverable/linux.git] / sound / pci / hda / hda_intel.c
1 /*
2 *
3 * hda_intel.c - Implementation of primary alsa driver code base
4 * for Intel HD Audio.
5 *
6 * Copyright(c) 2004 Intel Corporation. All rights reserved.
7 *
8 * Copyright (c) 2004 Takashi Iwai <tiwai@suse.de>
9 * PeiSen Hou <pshou@realtek.com.tw>
10 *
11 * This program is free software; you can redistribute it and/or modify it
12 * under the terms of the GNU General Public License as published by the Free
13 * Software Foundation; either version 2 of the License, or (at your option)
14 * any later version.
15 *
16 * This program is distributed in the hope that it will be useful, but WITHOUT
17 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
18 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
19 * more details.
20 *
21 * You should have received a copy of the GNU General Public License along with
22 * this program; if not, write to the Free Software Foundation, Inc., 59
23 * Temple Place - Suite 330, Boston, MA 02111-1307, USA.
24 *
25 * CONTACTS:
26 *
27 * Matt Jared matt.jared@intel.com
28 * Andy Kopp andy.kopp@intel.com
29 * Dan Kogan dan.d.kogan@intel.com
30 *
31 * CHANGES:
32 *
33 * 2004.12.01 Major rewrite by tiwai, merged the work of pshou
34 *
35 */
36
37 #include <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 bool 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, bool, NULL, 0444);
107 MODULE_PARM_DESC(beep_mode, "Select HDA Beep registration mode "
108 "(0=off, 1=on) (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, HPT},"
155 "{Intel, PBG},"
156 "{Intel, SCH},"
157 "{ATI, SB450},"
158 "{ATI, SB600},"
159 "{ATI, RS600},"
160 "{ATI, RS690},"
161 "{ATI, RS780},"
162 "{ATI, R600},"
163 "{ATI, RV630},"
164 "{ATI, RV610},"
165 "{ATI, RV670},"
166 "{ATI, RV635},"
167 "{ATI, RV620},"
168 "{ATI, RV770},"
169 "{VIA, VT8251},"
170 "{VIA, VT8237A},"
171 "{SiS, SIS966},"
172 "{ULI, M5461}}");
173 MODULE_DESCRIPTION("Intel HDA driver");
174
175 #ifdef CONFIG_SND_VERBOSE_PRINTK
176 #define SFX /* nop */
177 #else
178 #define SFX "hda-intel: "
179 #endif
180
181 #if defined(CONFIG_PM) && defined(CONFIG_VGA_SWITCHEROO)
182 #ifdef CONFIG_SND_HDA_CODEC_HDMI
183 #define SUPPORT_VGA_SWITCHEROO
184 #endif
185 #endif
186
187
188 /*
189 * registers
190 */
191 #define ICH6_REG_GCAP 0x00
192 #define ICH6_GCAP_64OK (1 << 0) /* 64bit address support */
193 #define ICH6_GCAP_NSDO (3 << 1) /* # of serial data out signals */
194 #define ICH6_GCAP_BSS (31 << 3) /* # of bidirectional streams */
195 #define ICH6_GCAP_ISS (15 << 8) /* # of input streams */
196 #define ICH6_GCAP_OSS (15 << 12) /* # of output streams */
197 #define ICH6_REG_VMIN 0x02
198 #define ICH6_REG_VMAJ 0x03
199 #define ICH6_REG_OUTPAY 0x04
200 #define ICH6_REG_INPAY 0x06
201 #define ICH6_REG_GCTL 0x08
202 #define ICH6_GCTL_RESET (1 << 0) /* controller reset */
203 #define ICH6_GCTL_FCNTRL (1 << 1) /* flush control */
204 #define ICH6_GCTL_UNSOL (1 << 8) /* accept unsol. response enable */
205 #define ICH6_REG_WAKEEN 0x0c
206 #define ICH6_REG_STATESTS 0x0e
207 #define ICH6_REG_GSTS 0x10
208 #define ICH6_GSTS_FSTS (1 << 1) /* flush status */
209 #define ICH6_REG_INTCTL 0x20
210 #define ICH6_REG_INTSTS 0x24
211 #define ICH6_REG_WALLCLK 0x30 /* 24Mhz source */
212 #define ICH6_REG_OLD_SSYNC 0x34 /* SSYNC for old ICH */
213 #define ICH6_REG_SSYNC 0x38
214 #define ICH6_REG_CORBLBASE 0x40
215 #define ICH6_REG_CORBUBASE 0x44
216 #define ICH6_REG_CORBWP 0x48
217 #define ICH6_REG_CORBRP 0x4a
218 #define ICH6_CORBRP_RST (1 << 15) /* read pointer reset */
219 #define ICH6_REG_CORBCTL 0x4c
220 #define ICH6_CORBCTL_RUN (1 << 1) /* enable DMA */
221 #define ICH6_CORBCTL_CMEIE (1 << 0) /* enable memory error irq */
222 #define ICH6_REG_CORBSTS 0x4d
223 #define ICH6_CORBSTS_CMEI (1 << 0) /* memory error indication */
224 #define ICH6_REG_CORBSIZE 0x4e
225
226 #define ICH6_REG_RIRBLBASE 0x50
227 #define ICH6_REG_RIRBUBASE 0x54
228 #define ICH6_REG_RIRBWP 0x58
229 #define ICH6_RIRBWP_RST (1 << 15) /* write pointer reset */
230 #define ICH6_REG_RINTCNT 0x5a
231 #define ICH6_REG_RIRBCTL 0x5c
232 #define ICH6_RBCTL_IRQ_EN (1 << 0) /* enable IRQ */
233 #define ICH6_RBCTL_DMA_EN (1 << 1) /* enable DMA */
234 #define ICH6_RBCTL_OVERRUN_EN (1 << 2) /* enable overrun irq */
235 #define ICH6_REG_RIRBSTS 0x5d
236 #define ICH6_RBSTS_IRQ (1 << 0) /* response irq */
237 #define ICH6_RBSTS_OVERRUN (1 << 2) /* overrun irq */
238 #define ICH6_REG_RIRBSIZE 0x5e
239
240 #define ICH6_REG_IC 0x60
241 #define ICH6_REG_IR 0x64
242 #define ICH6_REG_IRS 0x68
243 #define ICH6_IRS_VALID (1<<1)
244 #define ICH6_IRS_BUSY (1<<0)
245
246 #define ICH6_REG_DPLBASE 0x70
247 #define ICH6_REG_DPUBASE 0x74
248 #define ICH6_DPLBASE_ENABLE 0x1 /* Enable position buffer */
249
250 /* SD offset: SDI0=0x80, SDI1=0xa0, ... SDO3=0x160 */
251 enum { SDI0, SDI1, SDI2, SDI3, SDO0, SDO1, SDO2, SDO3 };
252
253 /* stream register offsets from stream base */
254 #define ICH6_REG_SD_CTL 0x00
255 #define ICH6_REG_SD_STS 0x03
256 #define ICH6_REG_SD_LPIB 0x04
257 #define ICH6_REG_SD_CBL 0x08
258 #define ICH6_REG_SD_LVI 0x0c
259 #define ICH6_REG_SD_FIFOW 0x0e
260 #define ICH6_REG_SD_FIFOSIZE 0x10
261 #define ICH6_REG_SD_FORMAT 0x12
262 #define ICH6_REG_SD_BDLPL 0x18
263 #define ICH6_REG_SD_BDLPU 0x1c
264
265 /* PCI space */
266 #define ICH6_PCIREG_TCSEL 0x44
267
268 /*
269 * other constants
270 */
271
272 /* max number of SDs */
273 /* ICH, ATI and VIA have 4 playback and 4 capture */
274 #define ICH6_NUM_CAPTURE 4
275 #define ICH6_NUM_PLAYBACK 4
276
277 /* ULI has 6 playback and 5 capture */
278 #define ULI_NUM_CAPTURE 5
279 #define ULI_NUM_PLAYBACK 6
280
281 /* ATI HDMI has 1 playback and 0 capture */
282 #define ATIHDMI_NUM_CAPTURE 0
283 #define ATIHDMI_NUM_PLAYBACK 1
284
285 /* TERA has 4 playback and 3 capture */
286 #define TERA_NUM_CAPTURE 3
287 #define TERA_NUM_PLAYBACK 4
288
289 /* this number is statically defined for simplicity */
290 #define MAX_AZX_DEV 16
291
292 /* max number of fragments - we may use more if allocating more pages for BDL */
293 #define BDL_SIZE 4096
294 #define AZX_MAX_BDL_ENTRIES (BDL_SIZE / 16)
295 #define AZX_MAX_FRAG 32
296 /* max buffer size - no h/w limit, you can increase as you like */
297 #define AZX_MAX_BUF_SIZE (1024*1024*1024)
298
299 /* RIRB int mask: overrun[2], response[0] */
300 #define RIRB_INT_RESPONSE 0x01
301 #define RIRB_INT_OVERRUN 0x04
302 #define RIRB_INT_MASK 0x05
303
304 /* STATESTS int mask: S3,SD2,SD1,SD0 */
305 #define AZX_MAX_CODECS 8
306 #define AZX_DEFAULT_CODECS 4
307 #define STATESTS_INT_MASK ((1 << AZX_MAX_CODECS) - 1)
308
309 /* SD_CTL bits */
310 #define SD_CTL_STREAM_RESET 0x01 /* stream reset bit */
311 #define SD_CTL_DMA_START 0x02 /* stream DMA start bit */
312 #define SD_CTL_STRIPE (3 << 16) /* stripe control */
313 #define SD_CTL_TRAFFIC_PRIO (1 << 18) /* traffic priority */
314 #define SD_CTL_DIR (1 << 19) /* bi-directional stream */
315 #define SD_CTL_STREAM_TAG_MASK (0xf << 20)
316 #define SD_CTL_STREAM_TAG_SHIFT 20
317
318 /* SD_CTL and SD_STS */
319 #define SD_INT_DESC_ERR 0x10 /* descriptor error interrupt */
320 #define SD_INT_FIFO_ERR 0x08 /* FIFO error interrupt */
321 #define SD_INT_COMPLETE 0x04 /* completion interrupt */
322 #define SD_INT_MASK (SD_INT_DESC_ERR|SD_INT_FIFO_ERR|\
323 SD_INT_COMPLETE)
324
325 /* SD_STS */
326 #define SD_STS_FIFO_READY 0x20 /* FIFO ready */
327
328 /* INTCTL and INTSTS */
329 #define ICH6_INT_ALL_STREAM 0xff /* all stream interrupts */
330 #define ICH6_INT_CTRL_EN 0x40000000 /* controller interrupt enable bit */
331 #define ICH6_INT_GLOBAL_EN 0x80000000 /* global interrupt enable bit */
332
333 /* below are so far hardcoded - should read registers in future */
334 #define ICH6_MAX_CORB_ENTRIES 256
335 #define ICH6_MAX_RIRB_ENTRIES 256
336
337 /* position fix mode */
338 enum {
339 POS_FIX_AUTO,
340 POS_FIX_LPIB,
341 POS_FIX_POSBUF,
342 POS_FIX_VIACOMBO,
343 POS_FIX_COMBO,
344 };
345
346 /* Defines for ATI HD Audio support in SB450 south bridge */
347 #define ATI_SB450_HDAUDIO_MISC_CNTR2_ADDR 0x42
348 #define ATI_SB450_HDAUDIO_ENABLE_SNOOP 0x02
349
350 /* Defines for Nvidia HDA support */
351 #define NVIDIA_HDA_TRANSREG_ADDR 0x4e
352 #define NVIDIA_HDA_ENABLE_COHBITS 0x0f
353 #define NVIDIA_HDA_ISTRM_COH 0x4d
354 #define NVIDIA_HDA_OSTRM_COH 0x4c
355 #define NVIDIA_HDA_ENABLE_COHBIT 0x01
356
357 /* Defines for Intel SCH HDA snoop control */
358 #define INTEL_SCH_HDA_DEVC 0x78
359 #define INTEL_SCH_HDA_DEVC_NOSNOOP (0x1<<11)
360
361 /* Define IN stream 0 FIFO size offset in VIA controller */
362 #define VIA_IN_STREAM0_FIFO_SIZE_OFFSET 0x90
363 /* Define VIA HD Audio Device ID*/
364 #define VIA_HDAC_DEVICE_ID 0x3288
365
366 /* HD Audio class code */
367 #define PCI_CLASS_MULTIMEDIA_HD_AUDIO 0x0403
368
369 /*
370 */
371
372 struct azx_dev {
373 struct snd_dma_buffer bdl; /* BDL buffer */
374 u32 *posbuf; /* position buffer pointer */
375
376 unsigned int bufsize; /* size of the play buffer in bytes */
377 unsigned int period_bytes; /* size of the period in bytes */
378 unsigned int frags; /* number for period in the play buffer */
379 unsigned int fifo_size; /* FIFO size */
380 unsigned long start_wallclk; /* start + minimum wallclk */
381 unsigned long period_wallclk; /* wallclk for period */
382
383 void __iomem *sd_addr; /* stream descriptor pointer */
384
385 u32 sd_int_sta_mask; /* stream int status mask */
386
387 /* pcm support */
388 struct snd_pcm_substream *substream; /* assigned substream,
389 * set in PCM open
390 */
391 unsigned int format_val; /* format value to be set in the
392 * controller and the codec
393 */
394 unsigned char stream_tag; /* assigned stream */
395 unsigned char index; /* stream index */
396 int assigned_key; /* last device# key assigned to */
397
398 unsigned int opened :1;
399 unsigned int running :1;
400 unsigned int irq_pending :1;
401 /*
402 * For VIA:
403 * A flag to ensure DMA position is 0
404 * when link position is not greater than FIFO size
405 */
406 unsigned int insufficient :1;
407 unsigned int wc_marked:1;
408 };
409
410 /* CORB/RIRB */
411 struct azx_rb {
412 u32 *buf; /* CORB/RIRB buffer
413 * Each CORB entry is 4byte, RIRB is 8byte
414 */
415 dma_addr_t addr; /* physical address of CORB/RIRB buffer */
416 /* for RIRB */
417 unsigned short rp, wp; /* read/write pointers */
418 int cmds[AZX_MAX_CODECS]; /* number of pending requests */
419 u32 res[AZX_MAX_CODECS]; /* last read value */
420 };
421
422 struct azx_pcm {
423 struct azx *chip;
424 struct snd_pcm *pcm;
425 struct hda_codec *codec;
426 struct hda_pcm_stream *hinfo[2];
427 struct list_head list;
428 };
429
430 struct azx {
431 struct snd_card *card;
432 struct pci_dev *pci;
433 int dev_index;
434
435 /* chip type specific */
436 int driver_type;
437 unsigned int driver_caps;
438 int playback_streams;
439 int playback_index_offset;
440 int capture_streams;
441 int capture_index_offset;
442 int num_streams;
443
444 /* pci resources */
445 unsigned long addr;
446 void __iomem *remap_addr;
447 int irq;
448
449 /* locks */
450 spinlock_t reg_lock;
451 struct mutex open_mutex;
452
453 /* streams (x num_streams) */
454 struct azx_dev *azx_dev;
455
456 /* PCM */
457 struct list_head pcm_list; /* azx_pcm list */
458
459 /* HD codec */
460 unsigned short codec_mask;
461 int codec_probe_mask; /* copied from probe_mask option */
462 struct hda_bus *bus;
463 unsigned int beep_mode;
464
465 /* CORB/RIRB */
466 struct azx_rb corb;
467 struct azx_rb rirb;
468
469 /* CORB/RIRB and position buffers */
470 struct snd_dma_buffer rb;
471 struct snd_dma_buffer posbuf;
472
473 /* flags */
474 int position_fix[2]; /* for both playback/capture streams */
475 int poll_count;
476 unsigned int running :1;
477 unsigned int initialized :1;
478 unsigned int single_cmd :1;
479 unsigned int polling_mode :1;
480 unsigned int msi :1;
481 unsigned int irq_pending_warned :1;
482 unsigned int probing :1; /* codec probing phase */
483 unsigned int snoop:1;
484 unsigned int align_buffer_size:1;
485 unsigned int region_requested:1;
486
487 /* VGA-switcheroo setup */
488 unsigned int use_vga_switcheroo:1;
489 unsigned int init_failed:1; /* delayed init failed */
490 unsigned int disabled:1; /* disabled by VGA-switcher */
491
492 /* for debugging */
493 unsigned int last_cmd[AZX_MAX_CODECS];
494
495 /* for pending irqs */
496 struct work_struct irq_pending_work;
497
498 /* reboot notifier (for mysterious hangup problem at power-down) */
499 struct notifier_block reboot_notifier;
500 };
501
502 /* driver types */
503 enum {
504 AZX_DRIVER_ICH,
505 AZX_DRIVER_PCH,
506 AZX_DRIVER_SCH,
507 AZX_DRIVER_ATI,
508 AZX_DRIVER_ATIHDMI,
509 AZX_DRIVER_ATIHDMI_NS,
510 AZX_DRIVER_VIA,
511 AZX_DRIVER_SIS,
512 AZX_DRIVER_ULI,
513 AZX_DRIVER_NVIDIA,
514 AZX_DRIVER_TERA,
515 AZX_DRIVER_CTX,
516 AZX_DRIVER_CTHDA,
517 AZX_DRIVER_GENERIC,
518 AZX_NUM_DRIVERS, /* keep this as last entry */
519 };
520
521 /* driver quirks (capabilities) */
522 /* bits 0-7 are used for indicating driver type */
523 #define AZX_DCAPS_NO_TCSEL (1 << 8) /* No Intel TCSEL bit */
524 #define AZX_DCAPS_NO_MSI (1 << 9) /* No MSI support */
525 #define AZX_DCAPS_ATI_SNOOP (1 << 10) /* ATI snoop enable */
526 #define AZX_DCAPS_NVIDIA_SNOOP (1 << 11) /* Nvidia snoop enable */
527 #define AZX_DCAPS_SCH_SNOOP (1 << 12) /* SCH/PCH snoop enable */
528 #define AZX_DCAPS_RIRB_DELAY (1 << 13) /* Long delay in read loop */
529 #define AZX_DCAPS_RIRB_PRE_DELAY (1 << 14) /* Put a delay before read */
530 #define AZX_DCAPS_CTX_WORKAROUND (1 << 15) /* X-Fi workaround */
531 #define AZX_DCAPS_POSFIX_LPIB (1 << 16) /* Use LPIB as default */
532 #define AZX_DCAPS_POSFIX_VIA (1 << 17) /* Use VIACOMBO as default */
533 #define AZX_DCAPS_NO_64BIT (1 << 18) /* No 64bit address */
534 #define AZX_DCAPS_SYNC_WRITE (1 << 19) /* sync each cmd write */
535 #define AZX_DCAPS_OLD_SSYNC (1 << 20) /* Old SSYNC reg for ICH */
536 #define AZX_DCAPS_BUFSIZE (1 << 21) /* no buffer size alignment */
537 #define AZX_DCAPS_ALIGN_BUFSIZE (1 << 22) /* buffer size alignment */
538 #define AZX_DCAPS_4K_BDLE_BOUNDARY (1 << 23) /* BDLE in 4k boundary */
539 #define AZX_DCAPS_POSFIX_COMBO (1 << 24) /* Use COMBO as default */
540
541 /* quirks for ATI SB / AMD Hudson */
542 #define AZX_DCAPS_PRESET_ATI_SB \
543 (AZX_DCAPS_ATI_SNOOP | AZX_DCAPS_NO_TCSEL | \
544 AZX_DCAPS_SYNC_WRITE | AZX_DCAPS_POSFIX_LPIB)
545
546 /* quirks for ATI/AMD HDMI */
547 #define AZX_DCAPS_PRESET_ATI_HDMI \
548 (AZX_DCAPS_NO_TCSEL | AZX_DCAPS_SYNC_WRITE | AZX_DCAPS_POSFIX_LPIB)
549
550 /* quirks for Nvidia */
551 #define AZX_DCAPS_PRESET_NVIDIA \
552 (AZX_DCAPS_NVIDIA_SNOOP | AZX_DCAPS_RIRB_DELAY | AZX_DCAPS_NO_MSI |\
553 AZX_DCAPS_ALIGN_BUFSIZE)
554
555 #define AZX_DCAPS_PRESET_CTHDA \
556 (AZX_DCAPS_NO_MSI | AZX_DCAPS_POSFIX_LPIB | AZX_DCAPS_4K_BDLE_BOUNDARY)
557
558 /*
559 * VGA-switcher support
560 */
561 #ifdef SUPPORT_VGA_SWITCHEROO
562 #define DELAYED_INIT_MARK
563 #define DELAYED_INITDATA_MARK
564 #define use_vga_switcheroo(chip) ((chip)->use_vga_switcheroo)
565 #else
566 #define DELAYED_INIT_MARK __devinit
567 #define DELAYED_INITDATA_MARK __devinitdata
568 #define use_vga_switcheroo(chip) 0
569 #endif
570
571 static char *driver_short_names[] DELAYED_INITDATA_MARK = {
572 [AZX_DRIVER_ICH] = "HDA Intel",
573 [AZX_DRIVER_PCH] = "HDA Intel PCH",
574 [AZX_DRIVER_SCH] = "HDA Intel MID",
575 [AZX_DRIVER_ATI] = "HDA ATI SB",
576 [AZX_DRIVER_ATIHDMI] = "HDA ATI HDMI",
577 [AZX_DRIVER_ATIHDMI_NS] = "HDA ATI HDMI",
578 [AZX_DRIVER_VIA] = "HDA VIA VT82xx",
579 [AZX_DRIVER_SIS] = "HDA SIS966",
580 [AZX_DRIVER_ULI] = "HDA ULI M5461",
581 [AZX_DRIVER_NVIDIA] = "HDA NVidia",
582 [AZX_DRIVER_TERA] = "HDA Teradici",
583 [AZX_DRIVER_CTX] = "HDA Creative",
584 [AZX_DRIVER_CTHDA] = "HDA Creative",
585 [AZX_DRIVER_GENERIC] = "HD-Audio Generic",
586 };
587
588 /*
589 * macros for easy use
590 */
591 #define azx_writel(chip,reg,value) \
592 writel(value, (chip)->remap_addr + ICH6_REG_##reg)
593 #define azx_readl(chip,reg) \
594 readl((chip)->remap_addr + ICH6_REG_##reg)
595 #define azx_writew(chip,reg,value) \
596 writew(value, (chip)->remap_addr + ICH6_REG_##reg)
597 #define azx_readw(chip,reg) \
598 readw((chip)->remap_addr + ICH6_REG_##reg)
599 #define azx_writeb(chip,reg,value) \
600 writeb(value, (chip)->remap_addr + ICH6_REG_##reg)
601 #define azx_readb(chip,reg) \
602 readb((chip)->remap_addr + ICH6_REG_##reg)
603
604 #define azx_sd_writel(dev,reg,value) \
605 writel(value, (dev)->sd_addr + ICH6_REG_##reg)
606 #define azx_sd_readl(dev,reg) \
607 readl((dev)->sd_addr + ICH6_REG_##reg)
608 #define azx_sd_writew(dev,reg,value) \
609 writew(value, (dev)->sd_addr + ICH6_REG_##reg)
610 #define azx_sd_readw(dev,reg) \
611 readw((dev)->sd_addr + ICH6_REG_##reg)
612 #define azx_sd_writeb(dev,reg,value) \
613 writeb(value, (dev)->sd_addr + ICH6_REG_##reg)
614 #define azx_sd_readb(dev,reg) \
615 readb((dev)->sd_addr + ICH6_REG_##reg)
616
617 /* for pcm support */
618 #define get_azx_dev(substream) (substream->runtime->private_data)
619
620 #ifdef CONFIG_X86
621 static void __mark_pages_wc(struct azx *chip, void *addr, size_t size, bool on)
622 {
623 if (azx_snoop(chip))
624 return;
625 if (addr && size) {
626 int pages = (size + PAGE_SIZE - 1) >> PAGE_SHIFT;
627 if (on)
628 set_memory_wc((unsigned long)addr, pages);
629 else
630 set_memory_wb((unsigned long)addr, pages);
631 }
632 }
633
634 static inline void mark_pages_wc(struct azx *chip, struct snd_dma_buffer *buf,
635 bool on)
636 {
637 __mark_pages_wc(chip, buf->area, buf->bytes, on);
638 }
639 static inline void mark_runtime_wc(struct azx *chip, struct azx_dev *azx_dev,
640 struct snd_pcm_runtime *runtime, bool on)
641 {
642 if (azx_dev->wc_marked != on) {
643 __mark_pages_wc(chip, runtime->dma_area, runtime->dma_bytes, on);
644 azx_dev->wc_marked = on;
645 }
646 }
647 #else
648 /* NOP for other archs */
649 static inline void mark_pages_wc(struct azx *chip, struct snd_dma_buffer *buf,
650 bool on)
651 {
652 }
653 static inline void mark_runtime_wc(struct azx *chip, struct azx_dev *azx_dev,
654 struct snd_pcm_runtime *runtime, bool on)
655 {
656 }
657 #endif
658
659 static int azx_acquire_irq(struct azx *chip, int do_disconnect);
660 static int azx_send_cmd(struct hda_bus *bus, unsigned int val);
661 /*
662 * Interface for HD codec
663 */
664
665 /*
666 * CORB / RIRB interface
667 */
668 static int azx_alloc_cmd_io(struct azx *chip)
669 {
670 int err;
671
672 /* single page (at least 4096 bytes) must suffice for both ringbuffes */
673 err = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV,
674 snd_dma_pci_data(chip->pci),
675 PAGE_SIZE, &chip->rb);
676 if (err < 0) {
677 snd_printk(KERN_ERR SFX "cannot allocate CORB/RIRB\n");
678 return err;
679 }
680 mark_pages_wc(chip, &chip->rb, true);
681 return 0;
682 }
683
684 static void azx_init_cmd_io(struct azx *chip)
685 {
686 spin_lock_irq(&chip->reg_lock);
687 /* CORB set up */
688 chip->corb.addr = chip->rb.addr;
689 chip->corb.buf = (u32 *)chip->rb.area;
690 azx_writel(chip, CORBLBASE, (u32)chip->corb.addr);
691 azx_writel(chip, CORBUBASE, upper_32_bits(chip->corb.addr));
692
693 /* set the corb size to 256 entries (ULI requires explicitly) */
694 azx_writeb(chip, CORBSIZE, 0x02);
695 /* set the corb write pointer to 0 */
696 azx_writew(chip, CORBWP, 0);
697 /* reset the corb hw read pointer */
698 azx_writew(chip, CORBRP, ICH6_CORBRP_RST);
699 /* enable corb dma */
700 azx_writeb(chip, CORBCTL, ICH6_CORBCTL_RUN);
701
702 /* RIRB set up */
703 chip->rirb.addr = chip->rb.addr + 2048;
704 chip->rirb.buf = (u32 *)(chip->rb.area + 2048);
705 chip->rirb.wp = chip->rirb.rp = 0;
706 memset(chip->rirb.cmds, 0, sizeof(chip->rirb.cmds));
707 azx_writel(chip, RIRBLBASE, (u32)chip->rirb.addr);
708 azx_writel(chip, RIRBUBASE, upper_32_bits(chip->rirb.addr));
709
710 /* set the rirb size to 256 entries (ULI requires explicitly) */
711 azx_writeb(chip, RIRBSIZE, 0x02);
712 /* reset the rirb hw write pointer */
713 azx_writew(chip, RIRBWP, ICH6_RIRBWP_RST);
714 /* set N=1, get RIRB response interrupt for new entry */
715 if (chip->driver_caps & AZX_DCAPS_CTX_WORKAROUND)
716 azx_writew(chip, RINTCNT, 0xc0);
717 else
718 azx_writew(chip, RINTCNT, 1);
719 /* enable rirb dma and response irq */
720 azx_writeb(chip, RIRBCTL, ICH6_RBCTL_DMA_EN | ICH6_RBCTL_IRQ_EN);
721 spin_unlock_irq(&chip->reg_lock);
722 }
723
724 static void azx_free_cmd_io(struct azx *chip)
725 {
726 spin_lock_irq(&chip->reg_lock);
727 /* disable ringbuffer DMAs */
728 azx_writeb(chip, RIRBCTL, 0);
729 azx_writeb(chip, CORBCTL, 0);
730 spin_unlock_irq(&chip->reg_lock);
731 }
732
733 static unsigned int azx_command_addr(u32 cmd)
734 {
735 unsigned int addr = cmd >> 28;
736
737 if (addr >= AZX_MAX_CODECS) {
738 snd_BUG();
739 addr = 0;
740 }
741
742 return addr;
743 }
744
745 static unsigned int azx_response_addr(u32 res)
746 {
747 unsigned int addr = res & 0xf;
748
749 if (addr >= AZX_MAX_CODECS) {
750 snd_BUG();
751 addr = 0;
752 }
753
754 return addr;
755 }
756
757 /* send a command */
758 static int azx_corb_send_cmd(struct hda_bus *bus, u32 val)
759 {
760 struct azx *chip = bus->private_data;
761 unsigned int addr = azx_command_addr(val);
762 unsigned int wp;
763
764 spin_lock_irq(&chip->reg_lock);
765
766 /* add command to corb */
767 wp = azx_readb(chip, CORBWP);
768 wp++;
769 wp %= ICH6_MAX_CORB_ENTRIES;
770
771 chip->rirb.cmds[addr]++;
772 chip->corb.buf[wp] = cpu_to_le32(val);
773 azx_writel(chip, CORBWP, wp);
774
775 spin_unlock_irq(&chip->reg_lock);
776
777 return 0;
778 }
779
780 #define ICH6_RIRB_EX_UNSOL_EV (1<<4)
781
782 /* retrieve RIRB entry - called from interrupt handler */
783 static void azx_update_rirb(struct azx *chip)
784 {
785 unsigned int rp, wp;
786 unsigned int addr;
787 u32 res, res_ex;
788
789 wp = azx_readb(chip, RIRBWP);
790 if (wp == chip->rirb.wp)
791 return;
792 chip->rirb.wp = wp;
793
794 while (chip->rirb.rp != wp) {
795 chip->rirb.rp++;
796 chip->rirb.rp %= ICH6_MAX_RIRB_ENTRIES;
797
798 rp = chip->rirb.rp << 1; /* an RIRB entry is 8-bytes */
799 res_ex = le32_to_cpu(chip->rirb.buf[rp + 1]);
800 res = le32_to_cpu(chip->rirb.buf[rp]);
801 addr = azx_response_addr(res_ex);
802 if (res_ex & ICH6_RIRB_EX_UNSOL_EV)
803 snd_hda_queue_unsol_event(chip->bus, res, res_ex);
804 else if (chip->rirb.cmds[addr]) {
805 chip->rirb.res[addr] = res;
806 smp_wmb();
807 chip->rirb.cmds[addr]--;
808 } else
809 snd_printk(KERN_ERR SFX "spurious response %#x:%#x, "
810 "last cmd=%#08x\n",
811 res, res_ex,
812 chip->last_cmd[addr]);
813 }
814 }
815
816 /* receive a response */
817 static unsigned int azx_rirb_get_response(struct hda_bus *bus,
818 unsigned int addr)
819 {
820 struct azx *chip = bus->private_data;
821 unsigned long timeout;
822 unsigned long loopcounter;
823 int do_poll = 0;
824
825 again:
826 timeout = jiffies + msecs_to_jiffies(1000);
827
828 for (loopcounter = 0;; loopcounter++) {
829 if (chip->polling_mode || do_poll) {
830 spin_lock_irq(&chip->reg_lock);
831 azx_update_rirb(chip);
832 spin_unlock_irq(&chip->reg_lock);
833 }
834 if (!chip->rirb.cmds[addr]) {
835 smp_rmb();
836 bus->rirb_error = 0;
837
838 if (!do_poll)
839 chip->poll_count = 0;
840 return chip->rirb.res[addr]; /* the last value */
841 }
842 if (time_after(jiffies, timeout))
843 break;
844 if (bus->needs_damn_long_delay || loopcounter > 3000)
845 msleep(2); /* temporary workaround */
846 else {
847 udelay(10);
848 cond_resched();
849 }
850 }
851
852 if (!chip->polling_mode && chip->poll_count < 2) {
853 snd_printdd(SFX "azx_get_response timeout, "
854 "polling the codec once: last cmd=0x%08x\n",
855 chip->last_cmd[addr]);
856 do_poll = 1;
857 chip->poll_count++;
858 goto again;
859 }
860
861
862 if (!chip->polling_mode) {
863 snd_printk(KERN_WARNING SFX "azx_get_response timeout, "
864 "switching to polling mode: last cmd=0x%08x\n",
865 chip->last_cmd[addr]);
866 chip->polling_mode = 1;
867 goto again;
868 }
869
870 if (chip->msi) {
871 snd_printk(KERN_WARNING SFX "No response from codec, "
872 "disabling MSI: last cmd=0x%08x\n",
873 chip->last_cmd[addr]);
874 free_irq(chip->irq, chip);
875 chip->irq = -1;
876 pci_disable_msi(chip->pci);
877 chip->msi = 0;
878 if (azx_acquire_irq(chip, 1) < 0) {
879 bus->rirb_error = 1;
880 return -1;
881 }
882 goto again;
883 }
884
885 if (chip->probing) {
886 /* If this critical timeout happens during the codec probing
887 * phase, this is likely an access to a non-existing codec
888 * slot. Better to return an error and reset the system.
889 */
890 return -1;
891 }
892
893 /* a fatal communication error; need either to reset or to fallback
894 * to the single_cmd mode
895 */
896 bus->rirb_error = 1;
897 if (bus->allow_bus_reset && !bus->response_reset && !bus->in_reset) {
898 bus->response_reset = 1;
899 return -1; /* give a chance to retry */
900 }
901
902 snd_printk(KERN_ERR "hda_intel: azx_get_response timeout, "
903 "switching to single_cmd mode: last cmd=0x%08x\n",
904 chip->last_cmd[addr]);
905 chip->single_cmd = 1;
906 bus->response_reset = 0;
907 /* release CORB/RIRB */
908 azx_free_cmd_io(chip);
909 /* disable unsolicited responses */
910 azx_writel(chip, GCTL, azx_readl(chip, GCTL) & ~ICH6_GCTL_UNSOL);
911 return -1;
912 }
913
914 /*
915 * Use the single immediate command instead of CORB/RIRB for simplicity
916 *
917 * Note: according to Intel, this is not preferred use. The command was
918 * intended for the BIOS only, and may get confused with unsolicited
919 * responses. So, we shouldn't use it for normal operation from the
920 * driver.
921 * I left the codes, however, for debugging/testing purposes.
922 */
923
924 /* receive a response */
925 static int azx_single_wait_for_response(struct azx *chip, unsigned int addr)
926 {
927 int timeout = 50;
928
929 while (timeout--) {
930 /* check IRV busy bit */
931 if (azx_readw(chip, IRS) & ICH6_IRS_VALID) {
932 /* reuse rirb.res as the response return value */
933 chip->rirb.res[addr] = azx_readl(chip, IR);
934 return 0;
935 }
936 udelay(1);
937 }
938 if (printk_ratelimit())
939 snd_printd(SFX "get_response timeout: IRS=0x%x\n",
940 azx_readw(chip, IRS));
941 chip->rirb.res[addr] = -1;
942 return -EIO;
943 }
944
945 /* send a command */
946 static int azx_single_send_cmd(struct hda_bus *bus, u32 val)
947 {
948 struct azx *chip = bus->private_data;
949 unsigned int addr = azx_command_addr(val);
950 int timeout = 50;
951
952 bus->rirb_error = 0;
953 while (timeout--) {
954 /* check ICB busy bit */
955 if (!((azx_readw(chip, IRS) & ICH6_IRS_BUSY))) {
956 /* Clear IRV valid bit */
957 azx_writew(chip, IRS, azx_readw(chip, IRS) |
958 ICH6_IRS_VALID);
959 azx_writel(chip, IC, val);
960 azx_writew(chip, IRS, azx_readw(chip, IRS) |
961 ICH6_IRS_BUSY);
962 return azx_single_wait_for_response(chip, addr);
963 }
964 udelay(1);
965 }
966 if (printk_ratelimit())
967 snd_printd(SFX "send_cmd timeout: IRS=0x%x, val=0x%x\n",
968 azx_readw(chip, IRS), val);
969 return -EIO;
970 }
971
972 /* receive a response */
973 static unsigned int azx_single_get_response(struct hda_bus *bus,
974 unsigned int addr)
975 {
976 struct azx *chip = bus->private_data;
977 return chip->rirb.res[addr];
978 }
979
980 /*
981 * The below are the main callbacks from hda_codec.
982 *
983 * They are just the skeleton to call sub-callbacks according to the
984 * current setting of chip->single_cmd.
985 */
986
987 /* send a command */
988 static int azx_send_cmd(struct hda_bus *bus, unsigned int val)
989 {
990 struct azx *chip = bus->private_data;
991
992 if (chip->disabled)
993 return 0;
994 chip->last_cmd[azx_command_addr(val)] = val;
995 if (chip->single_cmd)
996 return azx_single_send_cmd(bus, val);
997 else
998 return azx_corb_send_cmd(bus, val);
999 }
1000
1001 /* get a response */
1002 static unsigned int azx_get_response(struct hda_bus *bus,
1003 unsigned int addr)
1004 {
1005 struct azx *chip = bus->private_data;
1006 if (chip->disabled)
1007 return 0;
1008 if (chip->single_cmd)
1009 return azx_single_get_response(bus, addr);
1010 else
1011 return azx_rirb_get_response(bus, addr);
1012 }
1013
1014 #ifdef CONFIG_SND_HDA_POWER_SAVE
1015 static void azx_power_notify(struct hda_bus *bus);
1016 #endif
1017
1018 /* reset codec link */
1019 static int azx_reset(struct azx *chip, int full_reset)
1020 {
1021 int count;
1022
1023 if (!full_reset)
1024 goto __skip;
1025
1026 /* clear STATESTS */
1027 azx_writeb(chip, STATESTS, STATESTS_INT_MASK);
1028
1029 /* reset controller */
1030 azx_writel(chip, GCTL, azx_readl(chip, GCTL) & ~ICH6_GCTL_RESET);
1031
1032 count = 50;
1033 while (azx_readb(chip, GCTL) && --count)
1034 msleep(1);
1035
1036 /* delay for >= 100us for codec PLL to settle per spec
1037 * Rev 0.9 section 5.5.1
1038 */
1039 msleep(1);
1040
1041 /* Bring controller out of reset */
1042 azx_writeb(chip, GCTL, azx_readb(chip, GCTL) | ICH6_GCTL_RESET);
1043
1044 count = 50;
1045 while (!azx_readb(chip, GCTL) && --count)
1046 msleep(1);
1047
1048 /* Brent Chartrand said to wait >= 540us for codecs to initialize */
1049 msleep(1);
1050
1051 __skip:
1052 /* check to see if controller is ready */
1053 if (!azx_readb(chip, GCTL)) {
1054 snd_printd(SFX "azx_reset: controller not ready!\n");
1055 return -EBUSY;
1056 }
1057
1058 /* Accept unsolicited responses */
1059 if (!chip->single_cmd)
1060 azx_writel(chip, GCTL, azx_readl(chip, GCTL) |
1061 ICH6_GCTL_UNSOL);
1062
1063 /* detect codecs */
1064 if (!chip->codec_mask) {
1065 chip->codec_mask = azx_readw(chip, STATESTS);
1066 snd_printdd(SFX "codec_mask = 0x%x\n", chip->codec_mask);
1067 }
1068
1069 return 0;
1070 }
1071
1072
1073 /*
1074 * Lowlevel interface
1075 */
1076
1077 /* enable interrupts */
1078 static void azx_int_enable(struct azx *chip)
1079 {
1080 /* enable controller CIE and GIE */
1081 azx_writel(chip, INTCTL, azx_readl(chip, INTCTL) |
1082 ICH6_INT_CTRL_EN | ICH6_INT_GLOBAL_EN);
1083 }
1084
1085 /* disable interrupts */
1086 static void azx_int_disable(struct azx *chip)
1087 {
1088 int i;
1089
1090 /* disable interrupts in stream descriptor */
1091 for (i = 0; i < chip->num_streams; i++) {
1092 struct azx_dev *azx_dev = &chip->azx_dev[i];
1093 azx_sd_writeb(azx_dev, SD_CTL,
1094 azx_sd_readb(azx_dev, SD_CTL) & ~SD_INT_MASK);
1095 }
1096
1097 /* disable SIE for all streams */
1098 azx_writeb(chip, INTCTL, 0);
1099
1100 /* disable controller CIE and GIE */
1101 azx_writel(chip, INTCTL, azx_readl(chip, INTCTL) &
1102 ~(ICH6_INT_CTRL_EN | ICH6_INT_GLOBAL_EN));
1103 }
1104
1105 /* clear interrupts */
1106 static void azx_int_clear(struct azx *chip)
1107 {
1108 int i;
1109
1110 /* clear stream status */
1111 for (i = 0; i < chip->num_streams; i++) {
1112 struct azx_dev *azx_dev = &chip->azx_dev[i];
1113 azx_sd_writeb(azx_dev, SD_STS, SD_INT_MASK);
1114 }
1115
1116 /* clear STATESTS */
1117 azx_writeb(chip, STATESTS, STATESTS_INT_MASK);
1118
1119 /* clear rirb status */
1120 azx_writeb(chip, RIRBSTS, RIRB_INT_MASK);
1121
1122 /* clear int status */
1123 azx_writel(chip, INTSTS, ICH6_INT_CTRL_EN | ICH6_INT_ALL_STREAM);
1124 }
1125
1126 /* start a stream */
1127 static void azx_stream_start(struct azx *chip, struct azx_dev *azx_dev)
1128 {
1129 /*
1130 * Before stream start, initialize parameter
1131 */
1132 azx_dev->insufficient = 1;
1133
1134 /* enable SIE */
1135 azx_writel(chip, INTCTL,
1136 azx_readl(chip, INTCTL) | (1 << azx_dev->index));
1137 /* set DMA start and interrupt mask */
1138 azx_sd_writeb(azx_dev, SD_CTL, azx_sd_readb(azx_dev, SD_CTL) |
1139 SD_CTL_DMA_START | SD_INT_MASK);
1140 }
1141
1142 /* stop DMA */
1143 static void azx_stream_clear(struct azx *chip, struct azx_dev *azx_dev)
1144 {
1145 azx_sd_writeb(azx_dev, SD_CTL, azx_sd_readb(azx_dev, SD_CTL) &
1146 ~(SD_CTL_DMA_START | SD_INT_MASK));
1147 azx_sd_writeb(azx_dev, SD_STS, SD_INT_MASK); /* to be sure */
1148 }
1149
1150 /* stop a stream */
1151 static void azx_stream_stop(struct azx *chip, struct azx_dev *azx_dev)
1152 {
1153 azx_stream_clear(chip, azx_dev);
1154 /* disable SIE */
1155 azx_writel(chip, INTCTL,
1156 azx_readl(chip, INTCTL) & ~(1 << azx_dev->index));
1157 }
1158
1159
1160 /*
1161 * reset and start the controller registers
1162 */
1163 static void azx_init_chip(struct azx *chip, int full_reset)
1164 {
1165 if (chip->initialized)
1166 return;
1167
1168 /* reset controller */
1169 azx_reset(chip, full_reset);
1170
1171 /* initialize interrupts */
1172 azx_int_clear(chip);
1173 azx_int_enable(chip);
1174
1175 /* initialize the codec command I/O */
1176 if (!chip->single_cmd)
1177 azx_init_cmd_io(chip);
1178
1179 /* program the position buffer */
1180 azx_writel(chip, DPLBASE, (u32)chip->posbuf.addr);
1181 azx_writel(chip, DPUBASE, upper_32_bits(chip->posbuf.addr));
1182
1183 chip->initialized = 1;
1184 }
1185
1186 /*
1187 * initialize the PCI registers
1188 */
1189 /* update bits in a PCI register byte */
1190 static void update_pci_byte(struct pci_dev *pci, unsigned int reg,
1191 unsigned char mask, unsigned char val)
1192 {
1193 unsigned char data;
1194
1195 pci_read_config_byte(pci, reg, &data);
1196 data &= ~mask;
1197 data |= (val & mask);
1198 pci_write_config_byte(pci, reg, data);
1199 }
1200
1201 static void azx_init_pci(struct azx *chip)
1202 {
1203 /* Clear bits 0-2 of PCI register TCSEL (at offset 0x44)
1204 * TCSEL == Traffic Class Select Register, which sets PCI express QOS
1205 * Ensuring these bits are 0 clears playback static on some HD Audio
1206 * codecs.
1207 * The PCI register TCSEL is defined in the Intel manuals.
1208 */
1209 if (!(chip->driver_caps & AZX_DCAPS_NO_TCSEL)) {
1210 snd_printdd(SFX "Clearing TCSEL\n");
1211 update_pci_byte(chip->pci, ICH6_PCIREG_TCSEL, 0x07, 0);
1212 }
1213
1214 /* For ATI SB450/600/700/800/900 and AMD Hudson azalia HD audio,
1215 * we need to enable snoop.
1216 */
1217 if (chip->driver_caps & AZX_DCAPS_ATI_SNOOP) {
1218 snd_printdd(SFX "Setting ATI snoop: %d\n", azx_snoop(chip));
1219 update_pci_byte(chip->pci,
1220 ATI_SB450_HDAUDIO_MISC_CNTR2_ADDR, 0x07,
1221 azx_snoop(chip) ? ATI_SB450_HDAUDIO_ENABLE_SNOOP : 0);
1222 }
1223
1224 /* For NVIDIA HDA, enable snoop */
1225 if (chip->driver_caps & AZX_DCAPS_NVIDIA_SNOOP) {
1226 snd_printdd(SFX "Setting Nvidia snoop: %d\n", azx_snoop(chip));
1227 update_pci_byte(chip->pci,
1228 NVIDIA_HDA_TRANSREG_ADDR,
1229 0x0f, NVIDIA_HDA_ENABLE_COHBITS);
1230 update_pci_byte(chip->pci,
1231 NVIDIA_HDA_ISTRM_COH,
1232 0x01, NVIDIA_HDA_ENABLE_COHBIT);
1233 update_pci_byte(chip->pci,
1234 NVIDIA_HDA_OSTRM_COH,
1235 0x01, NVIDIA_HDA_ENABLE_COHBIT);
1236 }
1237
1238 /* Enable SCH/PCH snoop if needed */
1239 if (chip->driver_caps & AZX_DCAPS_SCH_SNOOP) {
1240 unsigned short snoop;
1241 pci_read_config_word(chip->pci, INTEL_SCH_HDA_DEVC, &snoop);
1242 if ((!azx_snoop(chip) && !(snoop & INTEL_SCH_HDA_DEVC_NOSNOOP)) ||
1243 (azx_snoop(chip) && (snoop & INTEL_SCH_HDA_DEVC_NOSNOOP))) {
1244 snoop &= ~INTEL_SCH_HDA_DEVC_NOSNOOP;
1245 if (!azx_snoop(chip))
1246 snoop |= INTEL_SCH_HDA_DEVC_NOSNOOP;
1247 pci_write_config_word(chip->pci, INTEL_SCH_HDA_DEVC, snoop);
1248 pci_read_config_word(chip->pci,
1249 INTEL_SCH_HDA_DEVC, &snoop);
1250 }
1251 snd_printdd(SFX "SCH snoop: %s\n",
1252 (snoop & INTEL_SCH_HDA_DEVC_NOSNOOP)
1253 ? "Disabled" : "Enabled");
1254 }
1255 }
1256
1257
1258 static int azx_position_ok(struct azx *chip, struct azx_dev *azx_dev);
1259
1260 /*
1261 * interrupt handler
1262 */
1263 static irqreturn_t azx_interrupt(int irq, void *dev_id)
1264 {
1265 struct azx *chip = dev_id;
1266 struct azx_dev *azx_dev;
1267 u32 status;
1268 u8 sd_status;
1269 int i, ok;
1270
1271 spin_lock(&chip->reg_lock);
1272
1273 if (chip->disabled) {
1274 spin_unlock(&chip->reg_lock);
1275 return IRQ_NONE;
1276 }
1277
1278 status = azx_readl(chip, INTSTS);
1279 if (status == 0) {
1280 spin_unlock(&chip->reg_lock);
1281 return IRQ_NONE;
1282 }
1283
1284 for (i = 0; i < chip->num_streams; i++) {
1285 azx_dev = &chip->azx_dev[i];
1286 if (status & azx_dev->sd_int_sta_mask) {
1287 sd_status = azx_sd_readb(azx_dev, SD_STS);
1288 azx_sd_writeb(azx_dev, SD_STS, SD_INT_MASK);
1289 if (!azx_dev->substream || !azx_dev->running ||
1290 !(sd_status & SD_INT_COMPLETE))
1291 continue;
1292 /* check whether this IRQ is really acceptable */
1293 ok = azx_position_ok(chip, azx_dev);
1294 if (ok == 1) {
1295 azx_dev->irq_pending = 0;
1296 spin_unlock(&chip->reg_lock);
1297 snd_pcm_period_elapsed(azx_dev->substream);
1298 spin_lock(&chip->reg_lock);
1299 } else if (ok == 0 && chip->bus && chip->bus->workq) {
1300 /* bogus IRQ, process it later */
1301 azx_dev->irq_pending = 1;
1302 queue_work(chip->bus->workq,
1303 &chip->irq_pending_work);
1304 }
1305 }
1306 }
1307
1308 /* clear rirb int */
1309 status = azx_readb(chip, RIRBSTS);
1310 if (status & RIRB_INT_MASK) {
1311 if (status & RIRB_INT_RESPONSE) {
1312 if (chip->driver_caps & AZX_DCAPS_RIRB_PRE_DELAY)
1313 udelay(80);
1314 azx_update_rirb(chip);
1315 }
1316 azx_writeb(chip, RIRBSTS, RIRB_INT_MASK);
1317 }
1318
1319 #if 0
1320 /* clear state status int */
1321 if (azx_readb(chip, STATESTS) & 0x04)
1322 azx_writeb(chip, STATESTS, 0x04);
1323 #endif
1324 spin_unlock(&chip->reg_lock);
1325
1326 return IRQ_HANDLED;
1327 }
1328
1329
1330 /*
1331 * set up a BDL entry
1332 */
1333 static int setup_bdle(struct azx *chip,
1334 struct snd_pcm_substream *substream,
1335 struct azx_dev *azx_dev, u32 **bdlp,
1336 int ofs, int size, int with_ioc)
1337 {
1338 u32 *bdl = *bdlp;
1339
1340 while (size > 0) {
1341 dma_addr_t addr;
1342 int chunk;
1343
1344 if (azx_dev->frags >= AZX_MAX_BDL_ENTRIES)
1345 return -EINVAL;
1346
1347 addr = snd_pcm_sgbuf_get_addr(substream, ofs);
1348 /* program the address field of the BDL entry */
1349 bdl[0] = cpu_to_le32((u32)addr);
1350 bdl[1] = cpu_to_le32(upper_32_bits(addr));
1351 /* program the size field of the BDL entry */
1352 chunk = snd_pcm_sgbuf_get_chunk_size(substream, ofs, size);
1353 /* one BDLE cannot cross 4K boundary on CTHDA chips */
1354 if (chip->driver_caps & AZX_DCAPS_4K_BDLE_BOUNDARY) {
1355 u32 remain = 0x1000 - (ofs & 0xfff);
1356 if (chunk > remain)
1357 chunk = remain;
1358 }
1359 bdl[2] = cpu_to_le32(chunk);
1360 /* program the IOC to enable interrupt
1361 * only when the whole fragment is processed
1362 */
1363 size -= chunk;
1364 bdl[3] = (size || !with_ioc) ? 0 : cpu_to_le32(0x01);
1365 bdl += 4;
1366 azx_dev->frags++;
1367 ofs += chunk;
1368 }
1369 *bdlp = bdl;
1370 return ofs;
1371 }
1372
1373 /*
1374 * set up BDL entries
1375 */
1376 static int azx_setup_periods(struct azx *chip,
1377 struct snd_pcm_substream *substream,
1378 struct azx_dev *azx_dev)
1379 {
1380 u32 *bdl;
1381 int i, ofs, periods, period_bytes;
1382 int pos_adj;
1383
1384 /* reset BDL address */
1385 azx_sd_writel(azx_dev, SD_BDLPL, 0);
1386 azx_sd_writel(azx_dev, SD_BDLPU, 0);
1387
1388 period_bytes = azx_dev->period_bytes;
1389 periods = azx_dev->bufsize / period_bytes;
1390
1391 /* program the initial BDL entries */
1392 bdl = (u32 *)azx_dev->bdl.area;
1393 ofs = 0;
1394 azx_dev->frags = 0;
1395 pos_adj = bdl_pos_adj[chip->dev_index];
1396 if (pos_adj > 0) {
1397 struct snd_pcm_runtime *runtime = substream->runtime;
1398 int pos_align = pos_adj;
1399 pos_adj = (pos_adj * runtime->rate + 47999) / 48000;
1400 if (!pos_adj)
1401 pos_adj = pos_align;
1402 else
1403 pos_adj = ((pos_adj + pos_align - 1) / pos_align) *
1404 pos_align;
1405 pos_adj = frames_to_bytes(runtime, pos_adj);
1406 if (pos_adj >= period_bytes) {
1407 snd_printk(KERN_WARNING SFX "Too big adjustment %d\n",
1408 bdl_pos_adj[chip->dev_index]);
1409 pos_adj = 0;
1410 } else {
1411 ofs = setup_bdle(chip, substream, azx_dev,
1412 &bdl, ofs, pos_adj,
1413 !substream->runtime->no_period_wakeup);
1414 if (ofs < 0)
1415 goto error;
1416 }
1417 } else
1418 pos_adj = 0;
1419 for (i = 0; i < periods; i++) {
1420 if (i == periods - 1 && pos_adj)
1421 ofs = setup_bdle(chip, substream, azx_dev, &bdl, ofs,
1422 period_bytes - pos_adj, 0);
1423 else
1424 ofs = setup_bdle(chip, substream, azx_dev, &bdl, ofs,
1425 period_bytes,
1426 !substream->runtime->no_period_wakeup);
1427 if (ofs < 0)
1428 goto error;
1429 }
1430 return 0;
1431
1432 error:
1433 snd_printk(KERN_ERR SFX "Too many BDL entries: buffer=%d, period=%d\n",
1434 azx_dev->bufsize, period_bytes);
1435 return -EINVAL;
1436 }
1437
1438 /* reset stream */
1439 static void azx_stream_reset(struct azx *chip, struct azx_dev *azx_dev)
1440 {
1441 unsigned char val;
1442 int timeout;
1443
1444 azx_stream_clear(chip, azx_dev);
1445
1446 azx_sd_writeb(azx_dev, SD_CTL, azx_sd_readb(azx_dev, SD_CTL) |
1447 SD_CTL_STREAM_RESET);
1448 udelay(3);
1449 timeout = 300;
1450 while (!((val = azx_sd_readb(azx_dev, SD_CTL)) & SD_CTL_STREAM_RESET) &&
1451 --timeout)
1452 ;
1453 val &= ~SD_CTL_STREAM_RESET;
1454 azx_sd_writeb(azx_dev, SD_CTL, val);
1455 udelay(3);
1456
1457 timeout = 300;
1458 /* waiting for hardware to report that the stream is out of reset */
1459 while (((val = azx_sd_readb(azx_dev, SD_CTL)) & SD_CTL_STREAM_RESET) &&
1460 --timeout)
1461 ;
1462
1463 /* reset first position - may not be synced with hw at this time */
1464 *azx_dev->posbuf = 0;
1465 }
1466
1467 /*
1468 * set up the SD for streaming
1469 */
1470 static int azx_setup_controller(struct azx *chip, struct azx_dev *azx_dev)
1471 {
1472 unsigned int val;
1473 /* make sure the run bit is zero for SD */
1474 azx_stream_clear(chip, azx_dev);
1475 /* program the stream_tag */
1476 val = azx_sd_readl(azx_dev, SD_CTL);
1477 val = (val & ~SD_CTL_STREAM_TAG_MASK) |
1478 (azx_dev->stream_tag << SD_CTL_STREAM_TAG_SHIFT);
1479 if (!azx_snoop(chip))
1480 val |= SD_CTL_TRAFFIC_PRIO;
1481 azx_sd_writel(azx_dev, SD_CTL, val);
1482
1483 /* program the length of samples in cyclic buffer */
1484 azx_sd_writel(azx_dev, SD_CBL, azx_dev->bufsize);
1485
1486 /* program the stream format */
1487 /* this value needs to be the same as the one programmed */
1488 azx_sd_writew(azx_dev, SD_FORMAT, azx_dev->format_val);
1489
1490 /* program the stream LVI (last valid index) of the BDL */
1491 azx_sd_writew(azx_dev, SD_LVI, azx_dev->frags - 1);
1492
1493 /* program the BDL address */
1494 /* lower BDL address */
1495 azx_sd_writel(azx_dev, SD_BDLPL, (u32)azx_dev->bdl.addr);
1496 /* upper BDL address */
1497 azx_sd_writel(azx_dev, SD_BDLPU, upper_32_bits(azx_dev->bdl.addr));
1498
1499 /* enable the position buffer */
1500 if (chip->position_fix[0] != POS_FIX_LPIB ||
1501 chip->position_fix[1] != POS_FIX_LPIB) {
1502 if (!(azx_readl(chip, DPLBASE) & ICH6_DPLBASE_ENABLE))
1503 azx_writel(chip, DPLBASE,
1504 (u32)chip->posbuf.addr | ICH6_DPLBASE_ENABLE);
1505 }
1506
1507 /* set the interrupt enable bits in the descriptor control register */
1508 azx_sd_writel(azx_dev, SD_CTL,
1509 azx_sd_readl(azx_dev, SD_CTL) | SD_INT_MASK);
1510
1511 return 0;
1512 }
1513
1514 /*
1515 * Probe the given codec address
1516 */
1517 static int probe_codec(struct azx *chip, int addr)
1518 {
1519 unsigned int cmd = (addr << 28) | (AC_NODE_ROOT << 20) |
1520 (AC_VERB_PARAMETERS << 8) | AC_PAR_VENDOR_ID;
1521 unsigned int res;
1522
1523 mutex_lock(&chip->bus->cmd_mutex);
1524 chip->probing = 1;
1525 azx_send_cmd(chip->bus, cmd);
1526 res = azx_get_response(chip->bus, addr);
1527 chip->probing = 0;
1528 mutex_unlock(&chip->bus->cmd_mutex);
1529 if (res == -1)
1530 return -EIO;
1531 snd_printdd(SFX "codec #%d probed OK\n", addr);
1532 return 0;
1533 }
1534
1535 static int azx_attach_pcm_stream(struct hda_bus *bus, struct hda_codec *codec,
1536 struct hda_pcm *cpcm);
1537 static void azx_stop_chip(struct azx *chip);
1538
1539 static void azx_bus_reset(struct hda_bus *bus)
1540 {
1541 struct azx *chip = bus->private_data;
1542
1543 bus->in_reset = 1;
1544 azx_stop_chip(chip);
1545 azx_init_chip(chip, 1);
1546 #ifdef CONFIG_PM
1547 if (chip->initialized) {
1548 struct azx_pcm *p;
1549 list_for_each_entry(p, &chip->pcm_list, list)
1550 snd_pcm_suspend_all(p->pcm);
1551 snd_hda_suspend(chip->bus);
1552 snd_hda_resume(chip->bus);
1553 }
1554 #endif
1555 bus->in_reset = 0;
1556 }
1557
1558 /*
1559 * Codec initialization
1560 */
1561
1562 /* number of codec slots for each chipset: 0 = default slots (i.e. 4) */
1563 static unsigned int azx_max_codecs[AZX_NUM_DRIVERS] DELAYED_INITDATA_MARK = {
1564 [AZX_DRIVER_NVIDIA] = 8,
1565 [AZX_DRIVER_TERA] = 1,
1566 };
1567
1568 static int DELAYED_INIT_MARK azx_codec_create(struct azx *chip, const char *model)
1569 {
1570 struct hda_bus_template bus_temp;
1571 int c, codecs, err;
1572 int max_slots;
1573
1574 memset(&bus_temp, 0, sizeof(bus_temp));
1575 bus_temp.private_data = chip;
1576 bus_temp.modelname = model;
1577 bus_temp.pci = chip->pci;
1578 bus_temp.ops.command = azx_send_cmd;
1579 bus_temp.ops.get_response = azx_get_response;
1580 bus_temp.ops.attach_pcm = azx_attach_pcm_stream;
1581 bus_temp.ops.bus_reset = azx_bus_reset;
1582 #ifdef CONFIG_SND_HDA_POWER_SAVE
1583 bus_temp.power_save = &power_save;
1584 bus_temp.ops.pm_notify = azx_power_notify;
1585 #endif
1586
1587 err = snd_hda_bus_new(chip->card, &bus_temp, &chip->bus);
1588 if (err < 0)
1589 return err;
1590
1591 if (chip->driver_caps & AZX_DCAPS_RIRB_DELAY) {
1592 snd_printd(SFX "Enable delay in RIRB handling\n");
1593 chip->bus->needs_damn_long_delay = 1;
1594 }
1595
1596 codecs = 0;
1597 max_slots = azx_max_codecs[chip->driver_type];
1598 if (!max_slots)
1599 max_slots = AZX_DEFAULT_CODECS;
1600
1601 /* First try to probe all given codec slots */
1602 for (c = 0; c < max_slots; c++) {
1603 if ((chip->codec_mask & (1 << c)) & chip->codec_probe_mask) {
1604 if (probe_codec(chip, c) < 0) {
1605 /* Some BIOSen give you wrong codec addresses
1606 * that don't exist
1607 */
1608 snd_printk(KERN_WARNING SFX
1609 "Codec #%d probe error; "
1610 "disabling it...\n", c);
1611 chip->codec_mask &= ~(1 << c);
1612 /* More badly, accessing to a non-existing
1613 * codec often screws up the controller chip,
1614 * and disturbs the further communications.
1615 * Thus if an error occurs during probing,
1616 * better to reset the controller chip to
1617 * get back to the sanity state.
1618 */
1619 azx_stop_chip(chip);
1620 azx_init_chip(chip, 1);
1621 }
1622 }
1623 }
1624
1625 /* AMD chipsets often cause the communication stalls upon certain
1626 * sequence like the pin-detection. It seems that forcing the synced
1627 * access works around the stall. Grrr...
1628 */
1629 if (chip->driver_caps & AZX_DCAPS_SYNC_WRITE) {
1630 snd_printd(SFX "Enable sync_write for stable communication\n");
1631 chip->bus->sync_write = 1;
1632 chip->bus->allow_bus_reset = 1;
1633 }
1634
1635 /* Then create codec instances */
1636 for (c = 0; c < max_slots; c++) {
1637 if ((chip->codec_mask & (1 << c)) & chip->codec_probe_mask) {
1638 struct hda_codec *codec;
1639 err = snd_hda_codec_new(chip->bus, c, &codec);
1640 if (err < 0)
1641 continue;
1642 codec->beep_mode = chip->beep_mode;
1643 codecs++;
1644 }
1645 }
1646 if (!codecs) {
1647 snd_printk(KERN_ERR SFX "no codecs initialized\n");
1648 return -ENXIO;
1649 }
1650 return 0;
1651 }
1652
1653 /* configure each codec instance */
1654 static int __devinit azx_codec_configure(struct azx *chip)
1655 {
1656 struct hda_codec *codec;
1657 list_for_each_entry(codec, &chip->bus->codec_list, list) {
1658 snd_hda_codec_configure(codec);
1659 }
1660 return 0;
1661 }
1662
1663
1664 /*
1665 * PCM support
1666 */
1667
1668 /* assign a stream for the PCM */
1669 static inline struct azx_dev *
1670 azx_assign_device(struct azx *chip, struct snd_pcm_substream *substream)
1671 {
1672 int dev, i, nums;
1673 struct azx_dev *res = NULL;
1674 /* make a non-zero unique key for the substream */
1675 int key = (substream->pcm->device << 16) | (substream->number << 2) |
1676 (substream->stream + 1);
1677
1678 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
1679 dev = chip->playback_index_offset;
1680 nums = chip->playback_streams;
1681 } else {
1682 dev = chip->capture_index_offset;
1683 nums = chip->capture_streams;
1684 }
1685 for (i = 0; i < nums; i++, dev++)
1686 if (!chip->azx_dev[dev].opened) {
1687 res = &chip->azx_dev[dev];
1688 if (res->assigned_key == key)
1689 break;
1690 }
1691 if (res) {
1692 res->opened = 1;
1693 res->assigned_key = key;
1694 }
1695 return res;
1696 }
1697
1698 /* release the assigned stream */
1699 static inline void azx_release_device(struct azx_dev *azx_dev)
1700 {
1701 azx_dev->opened = 0;
1702 }
1703
1704 static struct snd_pcm_hardware azx_pcm_hw = {
1705 .info = (SNDRV_PCM_INFO_MMAP |
1706 SNDRV_PCM_INFO_INTERLEAVED |
1707 SNDRV_PCM_INFO_BLOCK_TRANSFER |
1708 SNDRV_PCM_INFO_MMAP_VALID |
1709 /* No full-resume yet implemented */
1710 /* SNDRV_PCM_INFO_RESUME |*/
1711 SNDRV_PCM_INFO_PAUSE |
1712 SNDRV_PCM_INFO_SYNC_START |
1713 SNDRV_PCM_INFO_NO_PERIOD_WAKEUP),
1714 .formats = SNDRV_PCM_FMTBIT_S16_LE,
1715 .rates = SNDRV_PCM_RATE_48000,
1716 .rate_min = 48000,
1717 .rate_max = 48000,
1718 .channels_min = 2,
1719 .channels_max = 2,
1720 .buffer_bytes_max = AZX_MAX_BUF_SIZE,
1721 .period_bytes_min = 128,
1722 .period_bytes_max = AZX_MAX_BUF_SIZE / 2,
1723 .periods_min = 2,
1724 .periods_max = AZX_MAX_FRAG,
1725 .fifo_size = 0,
1726 };
1727
1728 static int azx_pcm_open(struct snd_pcm_substream *substream)
1729 {
1730 struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
1731 struct hda_pcm_stream *hinfo = apcm->hinfo[substream->stream];
1732 struct azx *chip = apcm->chip;
1733 struct azx_dev *azx_dev;
1734 struct snd_pcm_runtime *runtime = substream->runtime;
1735 unsigned long flags;
1736 int err;
1737 int buff_step;
1738
1739 mutex_lock(&chip->open_mutex);
1740 azx_dev = azx_assign_device(chip, substream);
1741 if (azx_dev == NULL) {
1742 mutex_unlock(&chip->open_mutex);
1743 return -EBUSY;
1744 }
1745 runtime->hw = azx_pcm_hw;
1746 runtime->hw.channels_min = hinfo->channels_min;
1747 runtime->hw.channels_max = hinfo->channels_max;
1748 runtime->hw.formats = hinfo->formats;
1749 runtime->hw.rates = hinfo->rates;
1750 snd_pcm_limit_hw_rates(runtime);
1751 snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS);
1752 if (chip->align_buffer_size)
1753 /* constrain buffer sizes to be multiple of 128
1754 bytes. This is more efficient in terms of memory
1755 access but isn't required by the HDA spec and
1756 prevents users from specifying exact period/buffer
1757 sizes. For example for 44.1kHz, a period size set
1758 to 20ms will be rounded to 19.59ms. */
1759 buff_step = 128;
1760 else
1761 /* Don't enforce steps on buffer sizes, still need to
1762 be multiple of 4 bytes (HDA spec). Tested on Intel
1763 HDA controllers, may not work on all devices where
1764 option needs to be disabled */
1765 buff_step = 4;
1766
1767 snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_BUFFER_BYTES,
1768 buff_step);
1769 snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES,
1770 buff_step);
1771 snd_hda_power_up_d3wait(apcm->codec);
1772 err = hinfo->ops.open(hinfo, apcm->codec, substream);
1773 if (err < 0) {
1774 azx_release_device(azx_dev);
1775 snd_hda_power_down(apcm->codec);
1776 mutex_unlock(&chip->open_mutex);
1777 return err;
1778 }
1779 snd_pcm_limit_hw_rates(runtime);
1780 /* sanity check */
1781 if (snd_BUG_ON(!runtime->hw.channels_min) ||
1782 snd_BUG_ON(!runtime->hw.channels_max) ||
1783 snd_BUG_ON(!runtime->hw.formats) ||
1784 snd_BUG_ON(!runtime->hw.rates)) {
1785 azx_release_device(azx_dev);
1786 hinfo->ops.close(hinfo, apcm->codec, substream);
1787 snd_hda_power_down(apcm->codec);
1788 mutex_unlock(&chip->open_mutex);
1789 return -EINVAL;
1790 }
1791 spin_lock_irqsave(&chip->reg_lock, flags);
1792 azx_dev->substream = substream;
1793 azx_dev->running = 0;
1794 spin_unlock_irqrestore(&chip->reg_lock, flags);
1795
1796 runtime->private_data = azx_dev;
1797 snd_pcm_set_sync(substream);
1798 mutex_unlock(&chip->open_mutex);
1799 return 0;
1800 }
1801
1802 static int azx_pcm_close(struct snd_pcm_substream *substream)
1803 {
1804 struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
1805 struct hda_pcm_stream *hinfo = apcm->hinfo[substream->stream];
1806 struct azx *chip = apcm->chip;
1807 struct azx_dev *azx_dev = get_azx_dev(substream);
1808 unsigned long flags;
1809
1810 mutex_lock(&chip->open_mutex);
1811 spin_lock_irqsave(&chip->reg_lock, flags);
1812 azx_dev->substream = NULL;
1813 azx_dev->running = 0;
1814 spin_unlock_irqrestore(&chip->reg_lock, flags);
1815 azx_release_device(azx_dev);
1816 hinfo->ops.close(hinfo, apcm->codec, substream);
1817 snd_hda_power_down(apcm->codec);
1818 mutex_unlock(&chip->open_mutex);
1819 return 0;
1820 }
1821
1822 static int azx_pcm_hw_params(struct snd_pcm_substream *substream,
1823 struct snd_pcm_hw_params *hw_params)
1824 {
1825 struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
1826 struct azx *chip = apcm->chip;
1827 struct snd_pcm_runtime *runtime = substream->runtime;
1828 struct azx_dev *azx_dev = get_azx_dev(substream);
1829 int ret;
1830
1831 mark_runtime_wc(chip, azx_dev, runtime, false);
1832 azx_dev->bufsize = 0;
1833 azx_dev->period_bytes = 0;
1834 azx_dev->format_val = 0;
1835 ret = snd_pcm_lib_malloc_pages(substream,
1836 params_buffer_bytes(hw_params));
1837 if (ret < 0)
1838 return ret;
1839 mark_runtime_wc(chip, azx_dev, runtime, true);
1840 return ret;
1841 }
1842
1843 static int azx_pcm_hw_free(struct snd_pcm_substream *substream)
1844 {
1845 struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
1846 struct azx_dev *azx_dev = get_azx_dev(substream);
1847 struct azx *chip = apcm->chip;
1848 struct snd_pcm_runtime *runtime = substream->runtime;
1849 struct hda_pcm_stream *hinfo = apcm->hinfo[substream->stream];
1850
1851 /* reset BDL address */
1852 azx_sd_writel(azx_dev, SD_BDLPL, 0);
1853 azx_sd_writel(azx_dev, SD_BDLPU, 0);
1854 azx_sd_writel(azx_dev, SD_CTL, 0);
1855 azx_dev->bufsize = 0;
1856 azx_dev->period_bytes = 0;
1857 azx_dev->format_val = 0;
1858
1859 snd_hda_codec_cleanup(apcm->codec, hinfo, substream);
1860
1861 mark_runtime_wc(chip, azx_dev, runtime, false);
1862 return snd_pcm_lib_free_pages(substream);
1863 }
1864
1865 static int azx_pcm_prepare(struct snd_pcm_substream *substream)
1866 {
1867 struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
1868 struct azx *chip = apcm->chip;
1869 struct azx_dev *azx_dev = get_azx_dev(substream);
1870 struct hda_pcm_stream *hinfo = apcm->hinfo[substream->stream];
1871 struct snd_pcm_runtime *runtime = substream->runtime;
1872 unsigned int bufsize, period_bytes, format_val, stream_tag;
1873 int err;
1874 struct hda_spdif_out *spdif =
1875 snd_hda_spdif_out_of_nid(apcm->codec, hinfo->nid);
1876 unsigned short ctls = spdif ? spdif->ctls : 0;
1877
1878 azx_stream_reset(chip, azx_dev);
1879 format_val = snd_hda_calc_stream_format(runtime->rate,
1880 runtime->channels,
1881 runtime->format,
1882 hinfo->maxbps,
1883 ctls);
1884 if (!format_val) {
1885 snd_printk(KERN_ERR SFX
1886 "invalid format_val, rate=%d, ch=%d, format=%d\n",
1887 runtime->rate, runtime->channels, runtime->format);
1888 return -EINVAL;
1889 }
1890
1891 bufsize = snd_pcm_lib_buffer_bytes(substream);
1892 period_bytes = snd_pcm_lib_period_bytes(substream);
1893
1894 snd_printdd(SFX "azx_pcm_prepare: bufsize=0x%x, format=0x%x\n",
1895 bufsize, format_val);
1896
1897 if (bufsize != azx_dev->bufsize ||
1898 period_bytes != azx_dev->period_bytes ||
1899 format_val != azx_dev->format_val) {
1900 azx_dev->bufsize = bufsize;
1901 azx_dev->period_bytes = period_bytes;
1902 azx_dev->format_val = format_val;
1903 err = azx_setup_periods(chip, substream, azx_dev);
1904 if (err < 0)
1905 return err;
1906 }
1907
1908 /* wallclk has 24Mhz clock source */
1909 azx_dev->period_wallclk = (((runtime->period_size * 24000) /
1910 runtime->rate) * 1000);
1911 azx_setup_controller(chip, azx_dev);
1912 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
1913 azx_dev->fifo_size = azx_sd_readw(azx_dev, SD_FIFOSIZE) + 1;
1914 else
1915 azx_dev->fifo_size = 0;
1916
1917 stream_tag = azx_dev->stream_tag;
1918 /* CA-IBG chips need the playback stream starting from 1 */
1919 if ((chip->driver_caps & AZX_DCAPS_CTX_WORKAROUND) &&
1920 stream_tag > chip->capture_streams)
1921 stream_tag -= chip->capture_streams;
1922 return snd_hda_codec_prepare(apcm->codec, hinfo, stream_tag,
1923 azx_dev->format_val, substream);
1924 }
1925
1926 static int azx_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
1927 {
1928 struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
1929 struct azx *chip = apcm->chip;
1930 struct azx_dev *azx_dev;
1931 struct snd_pcm_substream *s;
1932 int rstart = 0, start, nsync = 0, sbits = 0;
1933 int nwait, timeout;
1934
1935 switch (cmd) {
1936 case SNDRV_PCM_TRIGGER_START:
1937 rstart = 1;
1938 case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
1939 case SNDRV_PCM_TRIGGER_RESUME:
1940 start = 1;
1941 break;
1942 case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
1943 case SNDRV_PCM_TRIGGER_SUSPEND:
1944 case SNDRV_PCM_TRIGGER_STOP:
1945 start = 0;
1946 break;
1947 default:
1948 return -EINVAL;
1949 }
1950
1951 snd_pcm_group_for_each_entry(s, substream) {
1952 if (s->pcm->card != substream->pcm->card)
1953 continue;
1954 azx_dev = get_azx_dev(s);
1955 sbits |= 1 << azx_dev->index;
1956 nsync++;
1957 snd_pcm_trigger_done(s, substream);
1958 }
1959
1960 spin_lock(&chip->reg_lock);
1961 if (nsync > 1) {
1962 /* first, set SYNC bits of corresponding streams */
1963 if (chip->driver_caps & AZX_DCAPS_OLD_SSYNC)
1964 azx_writel(chip, OLD_SSYNC,
1965 azx_readl(chip, OLD_SSYNC) | sbits);
1966 else
1967 azx_writel(chip, SSYNC, azx_readl(chip, SSYNC) | sbits);
1968 }
1969 snd_pcm_group_for_each_entry(s, substream) {
1970 if (s->pcm->card != substream->pcm->card)
1971 continue;
1972 azx_dev = get_azx_dev(s);
1973 if (start) {
1974 azx_dev->start_wallclk = azx_readl(chip, WALLCLK);
1975 if (!rstart)
1976 azx_dev->start_wallclk -=
1977 azx_dev->period_wallclk;
1978 azx_stream_start(chip, azx_dev);
1979 } else {
1980 azx_stream_stop(chip, azx_dev);
1981 }
1982 azx_dev->running = start;
1983 }
1984 spin_unlock(&chip->reg_lock);
1985 if (start) {
1986 if (nsync == 1)
1987 return 0;
1988 /* wait until all FIFOs get ready */
1989 for (timeout = 5000; timeout; timeout--) {
1990 nwait = 0;
1991 snd_pcm_group_for_each_entry(s, substream) {
1992 if (s->pcm->card != substream->pcm->card)
1993 continue;
1994 azx_dev = get_azx_dev(s);
1995 if (!(azx_sd_readb(azx_dev, SD_STS) &
1996 SD_STS_FIFO_READY))
1997 nwait++;
1998 }
1999 if (!nwait)
2000 break;
2001 cpu_relax();
2002 }
2003 } else {
2004 /* wait until all RUN bits are cleared */
2005 for (timeout = 5000; timeout; timeout--) {
2006 nwait = 0;
2007 snd_pcm_group_for_each_entry(s, substream) {
2008 if (s->pcm->card != substream->pcm->card)
2009 continue;
2010 azx_dev = get_azx_dev(s);
2011 if (azx_sd_readb(azx_dev, SD_CTL) &
2012 SD_CTL_DMA_START)
2013 nwait++;
2014 }
2015 if (!nwait)
2016 break;
2017 cpu_relax();
2018 }
2019 }
2020 if (nsync > 1) {
2021 spin_lock(&chip->reg_lock);
2022 /* reset SYNC bits */
2023 if (chip->driver_caps & AZX_DCAPS_OLD_SSYNC)
2024 azx_writel(chip, OLD_SSYNC,
2025 azx_readl(chip, OLD_SSYNC) & ~sbits);
2026 else
2027 azx_writel(chip, SSYNC, azx_readl(chip, SSYNC) & ~sbits);
2028 spin_unlock(&chip->reg_lock);
2029 }
2030 return 0;
2031 }
2032
2033 /* get the current DMA position with correction on VIA chips */
2034 static unsigned int azx_via_get_position(struct azx *chip,
2035 struct azx_dev *azx_dev)
2036 {
2037 unsigned int link_pos, mini_pos, bound_pos;
2038 unsigned int mod_link_pos, mod_dma_pos, mod_mini_pos;
2039 unsigned int fifo_size;
2040
2041 link_pos = azx_sd_readl(azx_dev, SD_LPIB);
2042 if (azx_dev->substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
2043 /* Playback, no problem using link position */
2044 return link_pos;
2045 }
2046
2047 /* Capture */
2048 /* For new chipset,
2049 * use mod to get the DMA position just like old chipset
2050 */
2051 mod_dma_pos = le32_to_cpu(*azx_dev->posbuf);
2052 mod_dma_pos %= azx_dev->period_bytes;
2053
2054 /* azx_dev->fifo_size can't get FIFO size of in stream.
2055 * Get from base address + offset.
2056 */
2057 fifo_size = readw(chip->remap_addr + VIA_IN_STREAM0_FIFO_SIZE_OFFSET);
2058
2059 if (azx_dev->insufficient) {
2060 /* Link position never gather than FIFO size */
2061 if (link_pos <= fifo_size)
2062 return 0;
2063
2064 azx_dev->insufficient = 0;
2065 }
2066
2067 if (link_pos <= fifo_size)
2068 mini_pos = azx_dev->bufsize + link_pos - fifo_size;
2069 else
2070 mini_pos = link_pos - fifo_size;
2071
2072 /* Find nearest previous boudary */
2073 mod_mini_pos = mini_pos % azx_dev->period_bytes;
2074 mod_link_pos = link_pos % azx_dev->period_bytes;
2075 if (mod_link_pos >= fifo_size)
2076 bound_pos = link_pos - mod_link_pos;
2077 else if (mod_dma_pos >= mod_mini_pos)
2078 bound_pos = mini_pos - mod_mini_pos;
2079 else {
2080 bound_pos = mini_pos - mod_mini_pos + azx_dev->period_bytes;
2081 if (bound_pos >= azx_dev->bufsize)
2082 bound_pos = 0;
2083 }
2084
2085 /* Calculate real DMA position we want */
2086 return bound_pos + mod_dma_pos;
2087 }
2088
2089 static unsigned int azx_get_position(struct azx *chip,
2090 struct azx_dev *azx_dev,
2091 bool with_check)
2092 {
2093 unsigned int pos;
2094 int stream = azx_dev->substream->stream;
2095
2096 switch (chip->position_fix[stream]) {
2097 case POS_FIX_LPIB:
2098 /* read LPIB */
2099 pos = azx_sd_readl(azx_dev, SD_LPIB);
2100 break;
2101 case POS_FIX_VIACOMBO:
2102 pos = azx_via_get_position(chip, azx_dev);
2103 break;
2104 default:
2105 /* use the position buffer */
2106 pos = le32_to_cpu(*azx_dev->posbuf);
2107 if (with_check && chip->position_fix[stream] == POS_FIX_AUTO) {
2108 if (!pos || pos == (u32)-1) {
2109 printk(KERN_WARNING
2110 "hda-intel: Invalid position buffer, "
2111 "using LPIB read method instead.\n");
2112 chip->position_fix[stream] = POS_FIX_LPIB;
2113 pos = azx_sd_readl(azx_dev, SD_LPIB);
2114 } else
2115 chip->position_fix[stream] = POS_FIX_POSBUF;
2116 }
2117 break;
2118 }
2119
2120 if (pos >= azx_dev->bufsize)
2121 pos = 0;
2122 return pos;
2123 }
2124
2125 static snd_pcm_uframes_t azx_pcm_pointer(struct snd_pcm_substream *substream)
2126 {
2127 struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
2128 struct azx *chip = apcm->chip;
2129 struct azx_dev *azx_dev = get_azx_dev(substream);
2130 return bytes_to_frames(substream->runtime,
2131 azx_get_position(chip, azx_dev, false));
2132 }
2133
2134 /*
2135 * Check whether the current DMA position is acceptable for updating
2136 * periods. Returns non-zero if it's OK.
2137 *
2138 * Many HD-audio controllers appear pretty inaccurate about
2139 * the update-IRQ timing. The IRQ is issued before actually the
2140 * data is processed. So, we need to process it afterwords in a
2141 * workqueue.
2142 */
2143 static int azx_position_ok(struct azx *chip, struct azx_dev *azx_dev)
2144 {
2145 u32 wallclk;
2146 unsigned int pos;
2147 int stream;
2148
2149 wallclk = azx_readl(chip, WALLCLK) - azx_dev->start_wallclk;
2150 if (wallclk < (azx_dev->period_wallclk * 2) / 3)
2151 return -1; /* bogus (too early) interrupt */
2152
2153 stream = azx_dev->substream->stream;
2154 pos = azx_get_position(chip, azx_dev, true);
2155
2156 if (WARN_ONCE(!azx_dev->period_bytes,
2157 "hda-intel: zero azx_dev->period_bytes"))
2158 return -1; /* this shouldn't happen! */
2159 if (wallclk < (azx_dev->period_wallclk * 5) / 4 &&
2160 pos % azx_dev->period_bytes > azx_dev->period_bytes / 2)
2161 /* NG - it's below the first next period boundary */
2162 return bdl_pos_adj[chip->dev_index] ? 0 : -1;
2163 azx_dev->start_wallclk += wallclk;
2164 return 1; /* OK, it's fine */
2165 }
2166
2167 /*
2168 * The work for pending PCM period updates.
2169 */
2170 static void azx_irq_pending_work(struct work_struct *work)
2171 {
2172 struct azx *chip = container_of(work, struct azx, irq_pending_work);
2173 int i, pending, ok;
2174
2175 if (!chip->irq_pending_warned) {
2176 printk(KERN_WARNING
2177 "hda-intel: IRQ timing workaround is activated "
2178 "for card #%d. Suggest a bigger bdl_pos_adj.\n",
2179 chip->card->number);
2180 chip->irq_pending_warned = 1;
2181 }
2182
2183 for (;;) {
2184 pending = 0;
2185 spin_lock_irq(&chip->reg_lock);
2186 for (i = 0; i < chip->num_streams; i++) {
2187 struct azx_dev *azx_dev = &chip->azx_dev[i];
2188 if (!azx_dev->irq_pending ||
2189 !azx_dev->substream ||
2190 !azx_dev->running)
2191 continue;
2192 ok = azx_position_ok(chip, azx_dev);
2193 if (ok > 0) {
2194 azx_dev->irq_pending = 0;
2195 spin_unlock(&chip->reg_lock);
2196 snd_pcm_period_elapsed(azx_dev->substream);
2197 spin_lock(&chip->reg_lock);
2198 } else if (ok < 0) {
2199 pending = 0; /* too early */
2200 } else
2201 pending++;
2202 }
2203 spin_unlock_irq(&chip->reg_lock);
2204 if (!pending)
2205 return;
2206 msleep(1);
2207 }
2208 }
2209
2210 /* clear irq_pending flags and assure no on-going workq */
2211 static void azx_clear_irq_pending(struct azx *chip)
2212 {
2213 int i;
2214
2215 spin_lock_irq(&chip->reg_lock);
2216 for (i = 0; i < chip->num_streams; i++)
2217 chip->azx_dev[i].irq_pending = 0;
2218 spin_unlock_irq(&chip->reg_lock);
2219 }
2220
2221 #ifdef CONFIG_X86
2222 static int azx_pcm_mmap(struct snd_pcm_substream *substream,
2223 struct vm_area_struct *area)
2224 {
2225 struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
2226 struct azx *chip = apcm->chip;
2227 if (!azx_snoop(chip))
2228 area->vm_page_prot = pgprot_writecombine(area->vm_page_prot);
2229 return snd_pcm_lib_default_mmap(substream, area);
2230 }
2231 #else
2232 #define azx_pcm_mmap NULL
2233 #endif
2234
2235 static struct snd_pcm_ops azx_pcm_ops = {
2236 .open = azx_pcm_open,
2237 .close = azx_pcm_close,
2238 .ioctl = snd_pcm_lib_ioctl,
2239 .hw_params = azx_pcm_hw_params,
2240 .hw_free = azx_pcm_hw_free,
2241 .prepare = azx_pcm_prepare,
2242 .trigger = azx_pcm_trigger,
2243 .pointer = azx_pcm_pointer,
2244 .mmap = azx_pcm_mmap,
2245 .page = snd_pcm_sgbuf_ops_page,
2246 };
2247
2248 static void azx_pcm_free(struct snd_pcm *pcm)
2249 {
2250 struct azx_pcm *apcm = pcm->private_data;
2251 if (apcm) {
2252 list_del(&apcm->list);
2253 kfree(apcm);
2254 }
2255 }
2256
2257 #define MAX_PREALLOC_SIZE (32 * 1024 * 1024)
2258
2259 static int
2260 azx_attach_pcm_stream(struct hda_bus *bus, struct hda_codec *codec,
2261 struct hda_pcm *cpcm)
2262 {
2263 struct azx *chip = bus->private_data;
2264 struct snd_pcm *pcm;
2265 struct azx_pcm *apcm;
2266 int pcm_dev = cpcm->device;
2267 unsigned int size;
2268 int s, err;
2269
2270 list_for_each_entry(apcm, &chip->pcm_list, list) {
2271 if (apcm->pcm->device == pcm_dev) {
2272 snd_printk(KERN_ERR SFX "PCM %d already exists\n", pcm_dev);
2273 return -EBUSY;
2274 }
2275 }
2276 err = snd_pcm_new(chip->card, cpcm->name, pcm_dev,
2277 cpcm->stream[SNDRV_PCM_STREAM_PLAYBACK].substreams,
2278 cpcm->stream[SNDRV_PCM_STREAM_CAPTURE].substreams,
2279 &pcm);
2280 if (err < 0)
2281 return err;
2282 strlcpy(pcm->name, cpcm->name, sizeof(pcm->name));
2283 apcm = kzalloc(sizeof(*apcm), GFP_KERNEL);
2284 if (apcm == NULL)
2285 return -ENOMEM;
2286 apcm->chip = chip;
2287 apcm->pcm = pcm;
2288 apcm->codec = codec;
2289 pcm->private_data = apcm;
2290 pcm->private_free = azx_pcm_free;
2291 if (cpcm->pcm_type == HDA_PCM_TYPE_MODEM)
2292 pcm->dev_class = SNDRV_PCM_CLASS_MODEM;
2293 list_add_tail(&apcm->list, &chip->pcm_list);
2294 cpcm->pcm = pcm;
2295 for (s = 0; s < 2; s++) {
2296 apcm->hinfo[s] = &cpcm->stream[s];
2297 if (cpcm->stream[s].substreams)
2298 snd_pcm_set_ops(pcm, s, &azx_pcm_ops);
2299 }
2300 /* buffer pre-allocation */
2301 size = CONFIG_SND_HDA_PREALLOC_SIZE * 1024;
2302 if (size > MAX_PREALLOC_SIZE)
2303 size = MAX_PREALLOC_SIZE;
2304 snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
2305 snd_dma_pci_data(chip->pci),
2306 size, MAX_PREALLOC_SIZE);
2307 return 0;
2308 }
2309
2310 /*
2311 * mixer creation - all stuff is implemented in hda module
2312 */
2313 static int __devinit azx_mixer_create(struct azx *chip)
2314 {
2315 return snd_hda_build_controls(chip->bus);
2316 }
2317
2318
2319 /*
2320 * initialize SD streams
2321 */
2322 static int __devinit azx_init_stream(struct azx *chip)
2323 {
2324 int i;
2325
2326 /* initialize each stream (aka device)
2327 * assign the starting bdl address to each stream (device)
2328 * and initialize
2329 */
2330 for (i = 0; i < chip->num_streams; i++) {
2331 struct azx_dev *azx_dev = &chip->azx_dev[i];
2332 azx_dev->posbuf = (u32 __iomem *)(chip->posbuf.area + i * 8);
2333 /* offset: SDI0=0x80, SDI1=0xa0, ... SDO3=0x160 */
2334 azx_dev->sd_addr = chip->remap_addr + (0x20 * i + 0x80);
2335 /* int mask: SDI0=0x01, SDI1=0x02, ... SDO3=0x80 */
2336 azx_dev->sd_int_sta_mask = 1 << i;
2337 /* stream tag: must be non-zero and unique */
2338 azx_dev->index = i;
2339 azx_dev->stream_tag = i + 1;
2340 }
2341
2342 return 0;
2343 }
2344
2345 static int azx_acquire_irq(struct azx *chip, int do_disconnect)
2346 {
2347 if (request_irq(chip->pci->irq, azx_interrupt,
2348 chip->msi ? 0 : IRQF_SHARED,
2349 KBUILD_MODNAME, chip)) {
2350 printk(KERN_ERR "hda-intel: unable to grab IRQ %d, "
2351 "disabling device\n", chip->pci->irq);
2352 if (do_disconnect)
2353 snd_card_disconnect(chip->card);
2354 return -1;
2355 }
2356 chip->irq = chip->pci->irq;
2357 pci_intx(chip->pci, !chip->msi);
2358 return 0;
2359 }
2360
2361
2362 static void azx_stop_chip(struct azx *chip)
2363 {
2364 if (!chip->initialized)
2365 return;
2366
2367 /* disable interrupts */
2368 azx_int_disable(chip);
2369 azx_int_clear(chip);
2370
2371 /* disable CORB/RIRB */
2372 azx_free_cmd_io(chip);
2373
2374 /* disable position buffer */
2375 azx_writel(chip, DPLBASE, 0);
2376 azx_writel(chip, DPUBASE, 0);
2377
2378 chip->initialized = 0;
2379 }
2380
2381 #ifdef CONFIG_SND_HDA_POWER_SAVE
2382 /* power-up/down the controller */
2383 static void azx_power_notify(struct hda_bus *bus)
2384 {
2385 struct azx *chip = bus->private_data;
2386 struct hda_codec *c;
2387 int power_on = 0;
2388
2389 list_for_each_entry(c, &bus->codec_list, list) {
2390 if (c->power_on) {
2391 power_on = 1;
2392 break;
2393 }
2394 }
2395 if (power_on)
2396 azx_init_chip(chip, 1);
2397 else if (chip->running && power_save_controller &&
2398 !bus->power_keep_link_on)
2399 azx_stop_chip(chip);
2400 }
2401 #endif /* CONFIG_SND_HDA_POWER_SAVE */
2402
2403 #ifdef CONFIG_PM
2404 /*
2405 * power management
2406 */
2407
2408 static int azx_suspend(struct device *dev)
2409 {
2410 struct pci_dev *pci = to_pci_dev(dev);
2411 struct snd_card *card = dev_get_drvdata(dev);
2412 struct azx *chip = card->private_data;
2413 struct azx_pcm *p;
2414
2415 snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
2416 azx_clear_irq_pending(chip);
2417 list_for_each_entry(p, &chip->pcm_list, list)
2418 snd_pcm_suspend_all(p->pcm);
2419 if (chip->initialized)
2420 snd_hda_suspend(chip->bus);
2421 azx_stop_chip(chip);
2422 if (chip->irq >= 0) {
2423 free_irq(chip->irq, chip);
2424 chip->irq = -1;
2425 }
2426 if (chip->msi)
2427 pci_disable_msi(chip->pci);
2428 pci_disable_device(pci);
2429 pci_save_state(pci);
2430 pci_set_power_state(pci, PCI_D3hot);
2431 return 0;
2432 }
2433
2434 static int azx_resume(struct device *dev)
2435 {
2436 struct pci_dev *pci = to_pci_dev(dev);
2437 struct snd_card *card = dev_get_drvdata(dev);
2438 struct azx *chip = card->private_data;
2439
2440 pci_set_power_state(pci, PCI_D0);
2441 pci_restore_state(pci);
2442 if (pci_enable_device(pci) < 0) {
2443 printk(KERN_ERR "hda-intel: pci_enable_device failed, "
2444 "disabling device\n");
2445 snd_card_disconnect(card);
2446 return -EIO;
2447 }
2448 pci_set_master(pci);
2449 if (chip->msi)
2450 if (pci_enable_msi(pci) < 0)
2451 chip->msi = 0;
2452 if (azx_acquire_irq(chip, 1) < 0)
2453 return -EIO;
2454 azx_init_pci(chip);
2455
2456 azx_init_chip(chip, 1);
2457
2458 snd_hda_resume(chip->bus);
2459 snd_power_change_state(card, SNDRV_CTL_POWER_D0);
2460 return 0;
2461 }
2462 static SIMPLE_DEV_PM_OPS(azx_pm, azx_suspend, azx_resume);
2463 #define AZX_PM_OPS &azx_pm
2464 #else
2465 #define azx_suspend(dev)
2466 #define azx_resume(dev)
2467 #define AZX_PM_OPS NULL
2468 #endif /* CONFIG_PM */
2469
2470
2471 /*
2472 * reboot notifier for hang-up problem at power-down
2473 */
2474 static int azx_halt(struct notifier_block *nb, unsigned long event, void *buf)
2475 {
2476 struct azx *chip = container_of(nb, struct azx, reboot_notifier);
2477 snd_hda_bus_reboot_notify(chip->bus);
2478 azx_stop_chip(chip);
2479 return NOTIFY_OK;
2480 }
2481
2482 static void azx_notifier_register(struct azx *chip)
2483 {
2484 chip->reboot_notifier.notifier_call = azx_halt;
2485 register_reboot_notifier(&chip->reboot_notifier);
2486 }
2487
2488 static void azx_notifier_unregister(struct azx *chip)
2489 {
2490 if (chip->reboot_notifier.notifier_call)
2491 unregister_reboot_notifier(&chip->reboot_notifier);
2492 }
2493
2494 static int DELAYED_INIT_MARK azx_first_init(struct azx *chip);
2495 static int DELAYED_INIT_MARK azx_probe_continue(struct azx *chip);
2496
2497 #ifdef SUPPORT_VGA_SWITCHEROO
2498 static struct pci_dev __devinit *get_bound_vga(struct pci_dev *pci);
2499
2500 static void azx_vs_set_state(struct pci_dev *pci,
2501 enum vga_switcheroo_state state)
2502 {
2503 struct snd_card *card = pci_get_drvdata(pci);
2504 struct azx *chip = card->private_data;
2505 bool disabled;
2506
2507 if (chip->init_failed)
2508 return;
2509
2510 disabled = (state == VGA_SWITCHEROO_OFF);
2511 if (chip->disabled == disabled)
2512 return;
2513
2514 if (!chip->bus) {
2515 chip->disabled = disabled;
2516 if (!disabled) {
2517 snd_printk(KERN_INFO SFX
2518 "%s: Start delayed initialization\n",
2519 pci_name(chip->pci));
2520 if (azx_first_init(chip) < 0 ||
2521 azx_probe_continue(chip) < 0) {
2522 snd_printk(KERN_ERR SFX
2523 "%s: initialization error\n",
2524 pci_name(chip->pci));
2525 chip->init_failed = true;
2526 }
2527 }
2528 } else {
2529 snd_printk(KERN_INFO SFX
2530 "%s %s via VGA-switcheroo\n",
2531 disabled ? "Disabling" : "Enabling",
2532 pci_name(chip->pci));
2533 if (disabled) {
2534 azx_suspend(&pci->dev);
2535 chip->disabled = true;
2536 snd_hda_lock_devices(chip->bus);
2537 } else {
2538 snd_hda_unlock_devices(chip->bus);
2539 chip->disabled = false;
2540 azx_resume(&pci->dev);
2541 }
2542 }
2543 }
2544
2545 static bool azx_vs_can_switch(struct pci_dev *pci)
2546 {
2547 struct snd_card *card = pci_get_drvdata(pci);
2548 struct azx *chip = card->private_data;
2549
2550 if (chip->init_failed)
2551 return false;
2552 if (chip->disabled || !chip->bus)
2553 return true;
2554 if (snd_hda_lock_devices(chip->bus))
2555 return false;
2556 snd_hda_unlock_devices(chip->bus);
2557 return true;
2558 }
2559
2560 static void __devinit init_vga_switcheroo(struct azx *chip)
2561 {
2562 struct pci_dev *p = get_bound_vga(chip->pci);
2563 if (p) {
2564 snd_printk(KERN_INFO SFX
2565 "%s: Handle VGA-switcheroo audio client\n",
2566 pci_name(chip->pci));
2567 chip->use_vga_switcheroo = 1;
2568 pci_dev_put(p);
2569 }
2570 }
2571
2572 static const struct vga_switcheroo_client_ops azx_vs_ops = {
2573 .set_gpu_state = azx_vs_set_state,
2574 .can_switch = azx_vs_can_switch,
2575 };
2576
2577 static int __devinit register_vga_switcheroo(struct azx *chip)
2578 {
2579 if (!chip->use_vga_switcheroo)
2580 return 0;
2581 /* FIXME: currently only handling DIS controller
2582 * is there any machine with two switchable HDMI audio controllers?
2583 */
2584 return vga_switcheroo_register_audio_client(chip->pci, &azx_vs_ops,
2585 VGA_SWITCHEROO_DIS,
2586 chip->bus != NULL);
2587 }
2588 #else
2589 #define init_vga_switcheroo(chip) /* NOP */
2590 #define register_vga_switcheroo(chip) 0
2591 #define check_hdmi_disabled(pci) false
2592 #endif /* SUPPORT_VGA_SWITCHER */
2593
2594 /*
2595 * destructor
2596 */
2597 static int azx_free(struct azx *chip)
2598 {
2599 int i;
2600
2601 azx_notifier_unregister(chip);
2602
2603 if (use_vga_switcheroo(chip)) {
2604 if (chip->disabled && chip->bus)
2605 snd_hda_unlock_devices(chip->bus);
2606 vga_switcheroo_unregister_client(chip->pci);
2607 }
2608
2609 if (chip->initialized) {
2610 azx_clear_irq_pending(chip);
2611 for (i = 0; i < chip->num_streams; i++)
2612 azx_stream_stop(chip, &chip->azx_dev[i]);
2613 azx_stop_chip(chip);
2614 }
2615
2616 if (chip->irq >= 0)
2617 free_irq(chip->irq, (void*)chip);
2618 if (chip->msi)
2619 pci_disable_msi(chip->pci);
2620 if (chip->remap_addr)
2621 iounmap(chip->remap_addr);
2622
2623 if (chip->azx_dev) {
2624 for (i = 0; i < chip->num_streams; i++)
2625 if (chip->azx_dev[i].bdl.area) {
2626 mark_pages_wc(chip, &chip->azx_dev[i].bdl, false);
2627 snd_dma_free_pages(&chip->azx_dev[i].bdl);
2628 }
2629 }
2630 if (chip->rb.area) {
2631 mark_pages_wc(chip, &chip->rb, false);
2632 snd_dma_free_pages(&chip->rb);
2633 }
2634 if (chip->posbuf.area) {
2635 mark_pages_wc(chip, &chip->posbuf, false);
2636 snd_dma_free_pages(&chip->posbuf);
2637 }
2638 if (chip->region_requested)
2639 pci_release_regions(chip->pci);
2640 pci_disable_device(chip->pci);
2641 kfree(chip->azx_dev);
2642 kfree(chip);
2643
2644 return 0;
2645 }
2646
2647 static int azx_dev_free(struct snd_device *device)
2648 {
2649 return azx_free(device->device_data);
2650 }
2651
2652 #ifdef SUPPORT_VGA_SWITCHEROO
2653 /*
2654 * Check of disabled HDMI controller by vga-switcheroo
2655 */
2656 static struct pci_dev __devinit *get_bound_vga(struct pci_dev *pci)
2657 {
2658 struct pci_dev *p;
2659
2660 /* check only discrete GPU */
2661 switch (pci->vendor) {
2662 case PCI_VENDOR_ID_ATI:
2663 case PCI_VENDOR_ID_AMD:
2664 case PCI_VENDOR_ID_NVIDIA:
2665 if (pci->devfn == 1) {
2666 p = pci_get_domain_bus_and_slot(pci_domain_nr(pci->bus),
2667 pci->bus->number, 0);
2668 if (p) {
2669 if ((p->class >> 8) == PCI_CLASS_DISPLAY_VGA)
2670 return p;
2671 pci_dev_put(p);
2672 }
2673 }
2674 break;
2675 }
2676 return NULL;
2677 }
2678
2679 static bool __devinit check_hdmi_disabled(struct pci_dev *pci)
2680 {
2681 bool vga_inactive = false;
2682 struct pci_dev *p = get_bound_vga(pci);
2683
2684 if (p) {
2685 if (vga_switcheroo_get_client_state(p) == VGA_SWITCHEROO_OFF)
2686 vga_inactive = true;
2687 pci_dev_put(p);
2688 }
2689 return vga_inactive;
2690 }
2691 #endif /* SUPPORT_VGA_SWITCHEROO */
2692
2693 /*
2694 * white/black-listing for position_fix
2695 */
2696 static struct snd_pci_quirk position_fix_list[] __devinitdata = {
2697 SND_PCI_QUIRK(0x1028, 0x01cc, "Dell D820", POS_FIX_LPIB),
2698 SND_PCI_QUIRK(0x1028, 0x01de, "Dell Precision 390", POS_FIX_LPIB),
2699 SND_PCI_QUIRK(0x103c, 0x306d, "HP dv3", POS_FIX_LPIB),
2700 SND_PCI_QUIRK(0x1043, 0x813d, "ASUS P5AD2", POS_FIX_LPIB),
2701 SND_PCI_QUIRK(0x1043, 0x81b3, "ASUS", POS_FIX_LPIB),
2702 SND_PCI_QUIRK(0x1043, 0x81e7, "ASUS M2V", POS_FIX_LPIB),
2703 SND_PCI_QUIRK(0x104d, 0x9069, "Sony VPCS11V9E", POS_FIX_LPIB),
2704 SND_PCI_QUIRK(0x10de, 0xcb89, "Macbook Pro 7,1", POS_FIX_LPIB),
2705 SND_PCI_QUIRK(0x1297, 0x3166, "Shuttle", POS_FIX_LPIB),
2706 SND_PCI_QUIRK(0x1458, 0xa022, "ga-ma770-ud3", POS_FIX_LPIB),
2707 SND_PCI_QUIRK(0x1462, 0x1002, "MSI Wind U115", POS_FIX_LPIB),
2708 SND_PCI_QUIRK(0x1565, 0x8218, "Biostar Microtech", POS_FIX_LPIB),
2709 SND_PCI_QUIRK(0x1849, 0x0888, "775Dual-VSTA", POS_FIX_LPIB),
2710 SND_PCI_QUIRK(0x8086, 0x2503, "DG965OT AAD63733-203", POS_FIX_LPIB),
2711 {}
2712 };
2713
2714 static int __devinit check_position_fix(struct azx *chip, int fix)
2715 {
2716 const struct snd_pci_quirk *q;
2717
2718 switch (fix) {
2719 case POS_FIX_LPIB:
2720 case POS_FIX_POSBUF:
2721 case POS_FIX_VIACOMBO:
2722 case POS_FIX_COMBO:
2723 return fix;
2724 }
2725
2726 q = snd_pci_quirk_lookup(chip->pci, position_fix_list);
2727 if (q) {
2728 printk(KERN_INFO
2729 "hda_intel: position_fix set to %d "
2730 "for device %04x:%04x\n",
2731 q->value, q->subvendor, q->subdevice);
2732 return q->value;
2733 }
2734
2735 /* Check VIA/ATI HD Audio Controller exist */
2736 if (chip->driver_caps & AZX_DCAPS_POSFIX_VIA) {
2737 snd_printd(SFX "Using VIACOMBO position fix\n");
2738 return POS_FIX_VIACOMBO;
2739 }
2740 if (chip->driver_caps & AZX_DCAPS_POSFIX_LPIB) {
2741 snd_printd(SFX "Using LPIB position fix\n");
2742 return POS_FIX_LPIB;
2743 }
2744 if (chip->driver_caps & AZX_DCAPS_POSFIX_COMBO) {
2745 snd_printd(SFX "Using COMBO position fix\n");
2746 return POS_FIX_COMBO;
2747 }
2748 return POS_FIX_AUTO;
2749 }
2750
2751 /*
2752 * black-lists for probe_mask
2753 */
2754 static struct snd_pci_quirk probe_mask_list[] __devinitdata = {
2755 /* Thinkpad often breaks the controller communication when accessing
2756 * to the non-working (or non-existing) modem codec slot.
2757 */
2758 SND_PCI_QUIRK(0x1014, 0x05b7, "Thinkpad Z60", 0x01),
2759 SND_PCI_QUIRK(0x17aa, 0x2010, "Thinkpad X/T/R60", 0x01),
2760 SND_PCI_QUIRK(0x17aa, 0x20ac, "Thinkpad X/T/R61", 0x01),
2761 /* broken BIOS */
2762 SND_PCI_QUIRK(0x1028, 0x20ac, "Dell Studio Desktop", 0x01),
2763 /* including bogus ALC268 in slot#2 that conflicts with ALC888 */
2764 SND_PCI_QUIRK(0x17c0, 0x4085, "Medion MD96630", 0x01),
2765 /* forced codec slots */
2766 SND_PCI_QUIRK(0x1043, 0x1262, "ASUS W5Fm", 0x103),
2767 SND_PCI_QUIRK(0x1046, 0x1262, "ASUS W5F", 0x103),
2768 /* WinFast VP200 H (Teradici) user reported broken communication */
2769 SND_PCI_QUIRK(0x3a21, 0x040d, "WinFast VP200 H", 0x101),
2770 {}
2771 };
2772
2773 #define AZX_FORCE_CODEC_MASK 0x100
2774
2775 static void __devinit check_probe_mask(struct azx *chip, int dev)
2776 {
2777 const struct snd_pci_quirk *q;
2778
2779 chip->codec_probe_mask = probe_mask[dev];
2780 if (chip->codec_probe_mask == -1) {
2781 q = snd_pci_quirk_lookup(chip->pci, probe_mask_list);
2782 if (q) {
2783 printk(KERN_INFO
2784 "hda_intel: probe_mask set to 0x%x "
2785 "for device %04x:%04x\n",
2786 q->value, q->subvendor, q->subdevice);
2787 chip->codec_probe_mask = q->value;
2788 }
2789 }
2790
2791 /* check forced option */
2792 if (chip->codec_probe_mask != -1 &&
2793 (chip->codec_probe_mask & AZX_FORCE_CODEC_MASK)) {
2794 chip->codec_mask = chip->codec_probe_mask & 0xff;
2795 printk(KERN_INFO "hda_intel: codec_mask forced to 0x%x\n",
2796 chip->codec_mask);
2797 }
2798 }
2799
2800 /*
2801 * white/black-list for enable_msi
2802 */
2803 static struct snd_pci_quirk msi_black_list[] __devinitdata = {
2804 SND_PCI_QUIRK(0x1043, 0x81f2, "ASUS", 0), /* Athlon64 X2 + nvidia */
2805 SND_PCI_QUIRK(0x1043, 0x81f6, "ASUS", 0), /* nvidia */
2806 SND_PCI_QUIRK(0x1043, 0x822d, "ASUS", 0), /* Athlon64 X2 + nvidia MCP55 */
2807 SND_PCI_QUIRK(0x1849, 0x0888, "ASRock", 0), /* Athlon64 X2 + nvidia */
2808 SND_PCI_QUIRK(0xa0a0, 0x0575, "Aopen MZ915-M", 0), /* ICH6 */
2809 {}
2810 };
2811
2812 static void __devinit check_msi(struct azx *chip)
2813 {
2814 const struct snd_pci_quirk *q;
2815
2816 if (enable_msi >= 0) {
2817 chip->msi = !!enable_msi;
2818 return;
2819 }
2820 chip->msi = 1; /* enable MSI as default */
2821 q = snd_pci_quirk_lookup(chip->pci, msi_black_list);
2822 if (q) {
2823 printk(KERN_INFO
2824 "hda_intel: msi for device %04x:%04x set to %d\n",
2825 q->subvendor, q->subdevice, q->value);
2826 chip->msi = q->value;
2827 return;
2828 }
2829
2830 /* NVidia chipsets seem to cause troubles with MSI */
2831 if (chip->driver_caps & AZX_DCAPS_NO_MSI) {
2832 printk(KERN_INFO "hda_intel: Disabling MSI\n");
2833 chip->msi = 0;
2834 }
2835 }
2836
2837 /* check the snoop mode availability */
2838 static void __devinit azx_check_snoop_available(struct azx *chip)
2839 {
2840 bool snoop = chip->snoop;
2841
2842 switch (chip->driver_type) {
2843 case AZX_DRIVER_VIA:
2844 /* force to non-snoop mode for a new VIA controller
2845 * when BIOS is set
2846 */
2847 if (snoop) {
2848 u8 val;
2849 pci_read_config_byte(chip->pci, 0x42, &val);
2850 if (!(val & 0x80) && chip->pci->revision == 0x30)
2851 snoop = false;
2852 }
2853 break;
2854 case AZX_DRIVER_ATIHDMI_NS:
2855 /* new ATI HDMI requires non-snoop */
2856 snoop = false;
2857 break;
2858 }
2859
2860 if (snoop != chip->snoop) {
2861 snd_printk(KERN_INFO SFX "Force to %s mode\n",
2862 snoop ? "snoop" : "non-snoop");
2863 chip->snoop = snoop;
2864 }
2865 }
2866
2867 /*
2868 * constructor
2869 */
2870 static int __devinit azx_create(struct snd_card *card, struct pci_dev *pci,
2871 int dev, unsigned int driver_caps,
2872 struct azx **rchip)
2873 {
2874 static struct snd_device_ops ops = {
2875 .dev_free = azx_dev_free,
2876 };
2877 struct azx *chip;
2878 int err;
2879
2880 *rchip = NULL;
2881
2882 err = pci_enable_device(pci);
2883 if (err < 0)
2884 return err;
2885
2886 chip = kzalloc(sizeof(*chip), GFP_KERNEL);
2887 if (!chip) {
2888 snd_printk(KERN_ERR SFX "cannot allocate chip\n");
2889 pci_disable_device(pci);
2890 return -ENOMEM;
2891 }
2892
2893 spin_lock_init(&chip->reg_lock);
2894 mutex_init(&chip->open_mutex);
2895 chip->card = card;
2896 chip->pci = pci;
2897 chip->irq = -1;
2898 chip->driver_caps = driver_caps;
2899 chip->driver_type = driver_caps & 0xff;
2900 check_msi(chip);
2901 chip->dev_index = dev;
2902 INIT_WORK(&chip->irq_pending_work, azx_irq_pending_work);
2903 INIT_LIST_HEAD(&chip->pcm_list);
2904 init_vga_switcheroo(chip);
2905
2906 chip->position_fix[0] = chip->position_fix[1] =
2907 check_position_fix(chip, position_fix[dev]);
2908 /* combo mode uses LPIB for playback */
2909 if (chip->position_fix[0] == POS_FIX_COMBO) {
2910 chip->position_fix[0] = POS_FIX_LPIB;
2911 chip->position_fix[1] = POS_FIX_AUTO;
2912 }
2913
2914 check_probe_mask(chip, dev);
2915
2916 chip->single_cmd = single_cmd;
2917 chip->snoop = hda_snoop;
2918 azx_check_snoop_available(chip);
2919
2920 if (bdl_pos_adj[dev] < 0) {
2921 switch (chip->driver_type) {
2922 case AZX_DRIVER_ICH:
2923 case AZX_DRIVER_PCH:
2924 bdl_pos_adj[dev] = 1;
2925 break;
2926 default:
2927 bdl_pos_adj[dev] = 32;
2928 break;
2929 }
2930 }
2931
2932 if (check_hdmi_disabled(pci)) {
2933 snd_printk(KERN_INFO SFX "VGA controller for %s is disabled\n",
2934 pci_name(pci));
2935 if (use_vga_switcheroo(chip)) {
2936 snd_printk(KERN_INFO SFX "Delaying initialization\n");
2937 chip->disabled = true;
2938 goto ok;
2939 }
2940 kfree(chip);
2941 pci_disable_device(pci);
2942 return -ENXIO;
2943 }
2944
2945 err = azx_first_init(chip);
2946 if (err < 0) {
2947 azx_free(chip);
2948 return err;
2949 }
2950
2951 ok:
2952 err = register_vga_switcheroo(chip);
2953 if (err < 0) {
2954 snd_printk(KERN_ERR SFX
2955 "Error registering VGA-switcheroo client\n");
2956 azx_free(chip);
2957 return err;
2958 }
2959
2960 err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
2961 if (err < 0) {
2962 snd_printk(KERN_ERR SFX "Error creating device [card]!\n");
2963 azx_free(chip);
2964 return err;
2965 }
2966
2967 *rchip = chip;
2968 return 0;
2969 }
2970
2971 static int DELAYED_INIT_MARK azx_first_init(struct azx *chip)
2972 {
2973 int dev = chip->dev_index;
2974 struct pci_dev *pci = chip->pci;
2975 struct snd_card *card = chip->card;
2976 int i, err;
2977 unsigned short gcap;
2978
2979 #if BITS_PER_LONG != 64
2980 /* Fix up base address on ULI M5461 */
2981 if (chip->driver_type == AZX_DRIVER_ULI) {
2982 u16 tmp3;
2983 pci_read_config_word(pci, 0x40, &tmp3);
2984 pci_write_config_word(pci, 0x40, tmp3 | 0x10);
2985 pci_write_config_dword(pci, PCI_BASE_ADDRESS_1, 0);
2986 }
2987 #endif
2988
2989 err = pci_request_regions(pci, "ICH HD audio");
2990 if (err < 0)
2991 return err;
2992 chip->region_requested = 1;
2993
2994 chip->addr = pci_resource_start(pci, 0);
2995 chip->remap_addr = pci_ioremap_bar(pci, 0);
2996 if (chip->remap_addr == NULL) {
2997 snd_printk(KERN_ERR SFX "ioremap error\n");
2998 return -ENXIO;
2999 }
3000
3001 if (chip->msi)
3002 if (pci_enable_msi(pci) < 0)
3003 chip->msi = 0;
3004
3005 if (azx_acquire_irq(chip, 0) < 0)
3006 return -EBUSY;
3007
3008 pci_set_master(pci);
3009 synchronize_irq(chip->irq);
3010
3011 gcap = azx_readw(chip, GCAP);
3012 snd_printdd(SFX "chipset global capabilities = 0x%x\n", gcap);
3013
3014 /* disable SB600 64bit support for safety */
3015 if (chip->pci->vendor == PCI_VENDOR_ID_ATI) {
3016 struct pci_dev *p_smbus;
3017 p_smbus = pci_get_device(PCI_VENDOR_ID_ATI,
3018 PCI_DEVICE_ID_ATI_SBX00_SMBUS,
3019 NULL);
3020 if (p_smbus) {
3021 if (p_smbus->revision < 0x30)
3022 gcap &= ~ICH6_GCAP_64OK;
3023 pci_dev_put(p_smbus);
3024 }
3025 }
3026
3027 /* disable 64bit DMA address on some devices */
3028 if (chip->driver_caps & AZX_DCAPS_NO_64BIT) {
3029 snd_printd(SFX "Disabling 64bit DMA\n");
3030 gcap &= ~ICH6_GCAP_64OK;
3031 }
3032
3033 /* disable buffer size rounding to 128-byte multiples if supported */
3034 if (align_buffer_size >= 0)
3035 chip->align_buffer_size = !!align_buffer_size;
3036 else {
3037 if (chip->driver_caps & AZX_DCAPS_BUFSIZE)
3038 chip->align_buffer_size = 0;
3039 else if (chip->driver_caps & AZX_DCAPS_ALIGN_BUFSIZE)
3040 chip->align_buffer_size = 1;
3041 else
3042 chip->align_buffer_size = 1;
3043 }
3044
3045 /* allow 64bit DMA address if supported by H/W */
3046 if ((gcap & ICH6_GCAP_64OK) && !pci_set_dma_mask(pci, DMA_BIT_MASK(64)))
3047 pci_set_consistent_dma_mask(pci, DMA_BIT_MASK(64));
3048 else {
3049 pci_set_dma_mask(pci, DMA_BIT_MASK(32));
3050 pci_set_consistent_dma_mask(pci, DMA_BIT_MASK(32));
3051 }
3052
3053 /* read number of streams from GCAP register instead of using
3054 * hardcoded value
3055 */
3056 chip->capture_streams = (gcap >> 8) & 0x0f;
3057 chip->playback_streams = (gcap >> 12) & 0x0f;
3058 if (!chip->playback_streams && !chip->capture_streams) {
3059 /* gcap didn't give any info, switching to old method */
3060
3061 switch (chip->driver_type) {
3062 case AZX_DRIVER_ULI:
3063 chip->playback_streams = ULI_NUM_PLAYBACK;
3064 chip->capture_streams = ULI_NUM_CAPTURE;
3065 break;
3066 case AZX_DRIVER_ATIHDMI:
3067 case AZX_DRIVER_ATIHDMI_NS:
3068 chip->playback_streams = ATIHDMI_NUM_PLAYBACK;
3069 chip->capture_streams = ATIHDMI_NUM_CAPTURE;
3070 break;
3071 case AZX_DRIVER_GENERIC:
3072 default:
3073 chip->playback_streams = ICH6_NUM_PLAYBACK;
3074 chip->capture_streams = ICH6_NUM_CAPTURE;
3075 break;
3076 }
3077 }
3078 chip->capture_index_offset = 0;
3079 chip->playback_index_offset = chip->capture_streams;
3080 chip->num_streams = chip->playback_streams + chip->capture_streams;
3081 chip->azx_dev = kcalloc(chip->num_streams, sizeof(*chip->azx_dev),
3082 GFP_KERNEL);
3083 if (!chip->azx_dev) {
3084 snd_printk(KERN_ERR SFX "cannot malloc azx_dev\n");
3085 return -ENOMEM;
3086 }
3087
3088 for (i = 0; i < chip->num_streams; i++) {
3089 /* allocate memory for the BDL for each stream */
3090 err = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV,
3091 snd_dma_pci_data(chip->pci),
3092 BDL_SIZE, &chip->azx_dev[i].bdl);
3093 if (err < 0) {
3094 snd_printk(KERN_ERR SFX "cannot allocate BDL\n");
3095 return -ENOMEM;
3096 }
3097 mark_pages_wc(chip, &chip->azx_dev[i].bdl, true);
3098 }
3099 /* allocate memory for the position buffer */
3100 err = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV,
3101 snd_dma_pci_data(chip->pci),
3102 chip->num_streams * 8, &chip->posbuf);
3103 if (err < 0) {
3104 snd_printk(KERN_ERR SFX "cannot allocate posbuf\n");
3105 return -ENOMEM;
3106 }
3107 mark_pages_wc(chip, &chip->posbuf, true);
3108 /* allocate CORB/RIRB */
3109 err = azx_alloc_cmd_io(chip);
3110 if (err < 0)
3111 return err;
3112
3113 /* initialize streams */
3114 azx_init_stream(chip);
3115
3116 /* initialize chip */
3117 azx_init_pci(chip);
3118 azx_init_chip(chip, (probe_only[dev] & 2) == 0);
3119
3120 /* codec detection */
3121 if (!chip->codec_mask) {
3122 snd_printk(KERN_ERR SFX "no codecs found!\n");
3123 return -ENODEV;
3124 }
3125
3126 strcpy(card->driver, "HDA-Intel");
3127 strlcpy(card->shortname, driver_short_names[chip->driver_type],
3128 sizeof(card->shortname));
3129 snprintf(card->longname, sizeof(card->longname),
3130 "%s at 0x%lx irq %i",
3131 card->shortname, chip->addr, chip->irq);
3132
3133 return 0;
3134 }
3135
3136 static void power_down_all_codecs(struct azx *chip)
3137 {
3138 #ifdef CONFIG_SND_HDA_POWER_SAVE
3139 /* The codecs were powered up in snd_hda_codec_new().
3140 * Now all initialization done, so turn them down if possible
3141 */
3142 struct hda_codec *codec;
3143 list_for_each_entry(codec, &chip->bus->codec_list, list) {
3144 snd_hda_power_down(codec);
3145 }
3146 #endif
3147 }
3148
3149 static int __devinit azx_probe(struct pci_dev *pci,
3150 const struct pci_device_id *pci_id)
3151 {
3152 static int dev;
3153 struct snd_card *card;
3154 struct azx *chip;
3155 int err;
3156
3157 if (dev >= SNDRV_CARDS)
3158 return -ENODEV;
3159 if (!enable[dev]) {
3160 dev++;
3161 return -ENOENT;
3162 }
3163
3164 err = snd_card_create(index[dev], id[dev], THIS_MODULE, 0, &card);
3165 if (err < 0) {
3166 snd_printk(KERN_ERR SFX "Error creating card!\n");
3167 return err;
3168 }
3169
3170 /* set this here since it's referred in snd_hda_load_patch() */
3171 snd_card_set_dev(card, &pci->dev);
3172
3173 err = azx_create(card, pci, dev, pci_id->driver_data, &chip);
3174 if (err < 0)
3175 goto out_free;
3176 card->private_data = chip;
3177
3178 if (!chip->disabled) {
3179 err = azx_probe_continue(chip);
3180 if (err < 0)
3181 goto out_free;
3182 }
3183
3184 pci_set_drvdata(pci, card);
3185
3186 dev++;
3187 return 0;
3188
3189 out_free:
3190 snd_card_free(card);
3191 return err;
3192 }
3193
3194 static int DELAYED_INIT_MARK azx_probe_continue(struct azx *chip)
3195 {
3196 int dev = chip->dev_index;
3197 int err;
3198
3199 #ifdef CONFIG_SND_HDA_INPUT_BEEP
3200 chip->beep_mode = beep_mode[dev];
3201 #endif
3202
3203 /* create codec instances */
3204 err = azx_codec_create(chip, model[dev]);
3205 if (err < 0)
3206 goto out_free;
3207 #ifdef CONFIG_SND_HDA_PATCH_LOADER
3208 if (patch[dev] && *patch[dev]) {
3209 snd_printk(KERN_ERR SFX "Applying patch firmware '%s'\n",
3210 patch[dev]);
3211 err = snd_hda_load_patch(chip->bus, patch[dev]);
3212 if (err < 0)
3213 goto out_free;
3214 }
3215 #endif
3216 if ((probe_only[dev] & 1) == 0) {
3217 err = azx_codec_configure(chip);
3218 if (err < 0)
3219 goto out_free;
3220 }
3221
3222 /* create PCM streams */
3223 err = snd_hda_build_pcms(chip->bus);
3224 if (err < 0)
3225 goto out_free;
3226
3227 /* create mixer controls */
3228 err = azx_mixer_create(chip);
3229 if (err < 0)
3230 goto out_free;
3231
3232 err = snd_card_register(chip->card);
3233 if (err < 0)
3234 goto out_free;
3235
3236 chip->running = 1;
3237 power_down_all_codecs(chip);
3238 azx_notifier_register(chip);
3239
3240 return 0;
3241
3242 out_free:
3243 chip->init_failed = 1;
3244 return err;
3245 }
3246
3247 static void __devexit azx_remove(struct pci_dev *pci)
3248 {
3249 struct snd_card *card = pci_get_drvdata(pci);
3250 if (card)
3251 snd_card_free(card);
3252 pci_set_drvdata(pci, NULL);
3253 }
3254
3255 /* PCI IDs */
3256 static DEFINE_PCI_DEVICE_TABLE(azx_ids) = {
3257 /* CPT */
3258 { PCI_DEVICE(0x8086, 0x1c20),
3259 .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_SCH_SNOOP |
3260 AZX_DCAPS_BUFSIZE | AZX_DCAPS_POSFIX_COMBO },
3261 /* PBG */
3262 { PCI_DEVICE(0x8086, 0x1d20),
3263 .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_SCH_SNOOP |
3264 AZX_DCAPS_BUFSIZE},
3265 /* Panther Point */
3266 { PCI_DEVICE(0x8086, 0x1e20),
3267 .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_SCH_SNOOP |
3268 AZX_DCAPS_BUFSIZE | AZX_DCAPS_POSFIX_COMBO },
3269 /* Lynx Point */
3270 { PCI_DEVICE(0x8086, 0x8c20),
3271 .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_SCH_SNOOP |
3272 AZX_DCAPS_BUFSIZE | AZX_DCAPS_POSFIX_COMBO },
3273 /* Haswell */
3274 { PCI_DEVICE(0x8086, 0x0c0c),
3275 .driver_data = AZX_DRIVER_SCH | AZX_DCAPS_SCH_SNOOP |
3276 AZX_DCAPS_BUFSIZE | AZX_DCAPS_POSFIX_COMBO },
3277 /* SCH */
3278 { PCI_DEVICE(0x8086, 0x811b),
3279 .driver_data = AZX_DRIVER_SCH | AZX_DCAPS_SCH_SNOOP |
3280 AZX_DCAPS_BUFSIZE | AZX_DCAPS_POSFIX_LPIB }, /* Poulsbo */
3281 { PCI_DEVICE(0x8086, 0x080a),
3282 .driver_data = AZX_DRIVER_SCH | AZX_DCAPS_SCH_SNOOP |
3283 AZX_DCAPS_BUFSIZE | AZX_DCAPS_POSFIX_LPIB }, /* Oaktrail */
3284 /* ICH */
3285 { PCI_DEVICE(0x8086, 0x2668),
3286 .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_OLD_SSYNC |
3287 AZX_DCAPS_BUFSIZE }, /* ICH6 */
3288 { PCI_DEVICE(0x8086, 0x27d8),
3289 .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_OLD_SSYNC |
3290 AZX_DCAPS_BUFSIZE }, /* ICH7 */
3291 { PCI_DEVICE(0x8086, 0x269a),
3292 .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_OLD_SSYNC |
3293 AZX_DCAPS_BUFSIZE }, /* ESB2 */
3294 { PCI_DEVICE(0x8086, 0x284b),
3295 .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_OLD_SSYNC |
3296 AZX_DCAPS_BUFSIZE }, /* ICH8 */
3297 { PCI_DEVICE(0x8086, 0x293e),
3298 .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_OLD_SSYNC |
3299 AZX_DCAPS_BUFSIZE }, /* ICH9 */
3300 { PCI_DEVICE(0x8086, 0x293f),
3301 .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_OLD_SSYNC |
3302 AZX_DCAPS_BUFSIZE }, /* ICH9 */
3303 { PCI_DEVICE(0x8086, 0x3a3e),
3304 .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_OLD_SSYNC |
3305 AZX_DCAPS_BUFSIZE }, /* ICH10 */
3306 { PCI_DEVICE(0x8086, 0x3a6e),
3307 .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_OLD_SSYNC |
3308 AZX_DCAPS_BUFSIZE }, /* ICH10 */
3309 /* Generic Intel */
3310 { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_ANY_ID),
3311 .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
3312 .class_mask = 0xffffff,
3313 .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_BUFSIZE },
3314 /* ATI SB 450/600/700/800/900 */
3315 { PCI_DEVICE(0x1002, 0x437b),
3316 .driver_data = AZX_DRIVER_ATI | AZX_DCAPS_PRESET_ATI_SB },
3317 { PCI_DEVICE(0x1002, 0x4383),
3318 .driver_data = AZX_DRIVER_ATI | AZX_DCAPS_PRESET_ATI_SB },
3319 /* AMD Hudson */
3320 { PCI_DEVICE(0x1022, 0x780d),
3321 .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_ATI_SB },
3322 /* ATI HDMI */
3323 { PCI_DEVICE(0x1002, 0x793b),
3324 .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
3325 { PCI_DEVICE(0x1002, 0x7919),
3326 .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
3327 { PCI_DEVICE(0x1002, 0x960f),
3328 .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
3329 { PCI_DEVICE(0x1002, 0x970f),
3330 .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
3331 { PCI_DEVICE(0x1002, 0xaa00),
3332 .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
3333 { PCI_DEVICE(0x1002, 0xaa08),
3334 .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
3335 { PCI_DEVICE(0x1002, 0xaa10),
3336 .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
3337 { PCI_DEVICE(0x1002, 0xaa18),
3338 .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
3339 { PCI_DEVICE(0x1002, 0xaa20),
3340 .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
3341 { PCI_DEVICE(0x1002, 0xaa28),
3342 .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
3343 { PCI_DEVICE(0x1002, 0xaa30),
3344 .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
3345 { PCI_DEVICE(0x1002, 0xaa38),
3346 .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
3347 { PCI_DEVICE(0x1002, 0xaa40),
3348 .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
3349 { PCI_DEVICE(0x1002, 0xaa48),
3350 .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
3351 { PCI_DEVICE(0x1002, 0x9902),
3352 .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI },
3353 { PCI_DEVICE(0x1002, 0xaaa0),
3354 .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI },
3355 { PCI_DEVICE(0x1002, 0xaaa8),
3356 .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI },
3357 { PCI_DEVICE(0x1002, 0xaab0),
3358 .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI },
3359 /* VIA VT8251/VT8237A */
3360 { PCI_DEVICE(0x1106, 0x3288),
3361 .driver_data = AZX_DRIVER_VIA | AZX_DCAPS_POSFIX_VIA },
3362 /* VIA GFX VT7122/VX900 */
3363 { PCI_DEVICE(0x1106, 0x9170), .driver_data = AZX_DRIVER_GENERIC },
3364 /* VIA GFX VT6122/VX11 */
3365 { PCI_DEVICE(0x1106, 0x9140), .driver_data = AZX_DRIVER_GENERIC },
3366 /* SIS966 */
3367 { PCI_DEVICE(0x1039, 0x7502), .driver_data = AZX_DRIVER_SIS },
3368 /* ULI M5461 */
3369 { PCI_DEVICE(0x10b9, 0x5461), .driver_data = AZX_DRIVER_ULI },
3370 /* NVIDIA MCP */
3371 { PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID),
3372 .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
3373 .class_mask = 0xffffff,
3374 .driver_data = AZX_DRIVER_NVIDIA | AZX_DCAPS_PRESET_NVIDIA },
3375 /* Teradici */
3376 { PCI_DEVICE(0x6549, 0x1200),
3377 .driver_data = AZX_DRIVER_TERA | AZX_DCAPS_NO_64BIT },
3378 /* Creative X-Fi (CA0110-IBG) */
3379 /* CTHDA chips */
3380 { PCI_DEVICE(0x1102, 0x0010),
3381 .driver_data = AZX_DRIVER_CTHDA | AZX_DCAPS_PRESET_CTHDA },
3382 { PCI_DEVICE(0x1102, 0x0012),
3383 .driver_data = AZX_DRIVER_CTHDA | AZX_DCAPS_PRESET_CTHDA },
3384 #if !defined(CONFIG_SND_CTXFI) && !defined(CONFIG_SND_CTXFI_MODULE)
3385 /* the following entry conflicts with snd-ctxfi driver,
3386 * as ctxfi driver mutates from HD-audio to native mode with
3387 * a special command sequence.
3388 */
3389 { PCI_DEVICE(PCI_VENDOR_ID_CREATIVE, PCI_ANY_ID),
3390 .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
3391 .class_mask = 0xffffff,
3392 .driver_data = AZX_DRIVER_CTX | AZX_DCAPS_CTX_WORKAROUND |
3393 AZX_DCAPS_RIRB_PRE_DELAY | AZX_DCAPS_POSFIX_LPIB },
3394 #else
3395 /* this entry seems still valid -- i.e. without emu20kx chip */
3396 { PCI_DEVICE(0x1102, 0x0009),
3397 .driver_data = AZX_DRIVER_CTX | AZX_DCAPS_CTX_WORKAROUND |
3398 AZX_DCAPS_RIRB_PRE_DELAY | AZX_DCAPS_POSFIX_LPIB },
3399 #endif
3400 /* Vortex86MX */
3401 { PCI_DEVICE(0x17f3, 0x3010), .driver_data = AZX_DRIVER_GENERIC },
3402 /* VMware HDAudio */
3403 { PCI_DEVICE(0x15ad, 0x1977), .driver_data = AZX_DRIVER_GENERIC },
3404 /* AMD/ATI Generic, PCI class code and Vendor ID for HD Audio */
3405 { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_ANY_ID),
3406 .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
3407 .class_mask = 0xffffff,
3408 .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_ATI_HDMI },
3409 { PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_ANY_ID),
3410 .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
3411 .class_mask = 0xffffff,
3412 .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_ATI_HDMI },
3413 { 0, }
3414 };
3415 MODULE_DEVICE_TABLE(pci, azx_ids);
3416
3417 /* pci_driver definition */
3418 static struct pci_driver azx_driver = {
3419 .name = KBUILD_MODNAME,
3420 .id_table = azx_ids,
3421 .probe = azx_probe,
3422 .remove = __devexit_p(azx_remove),
3423 .driver = {
3424 .pm = AZX_PM_OPS,
3425 },
3426 };
3427
3428 module_pci_driver(azx_driver);
Linux kernel - Deliverables
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