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ALSA: hda: Use LPIB and 6stack-dig for eMachines T5212
[linux-2.6/mini2440.git] / sound / pci / hda / hda_intel.c
blobe5b5f600db999204b4dbdf7ad18e249558c8ad50
1 /*
2 *
3 * hda_intel.c - Implementation of primary alsa driver code base
4 * for Intel HD Audio.
5 *
6 * Copyright(c) 2004 Intel Corporation. All rights reserved.
7 *
8 * Copyright (c) 2004 Takashi Iwai <tiwai@suse.de>
9 * PeiSen Hou <pshou@realtek.com.tw>
10 *
11 * This program is free software; you can redistribute it and/or modify it
12 * under the terms of the GNU General Public License as published by the Free
13 * Software Foundation; either version 2 of the License, or (at your option)
14 * any later version.
15 *
16 * This program is distributed in the hope that it will be useful, but WITHOUT
17 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
18 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
19 * more details.
20 *
21 * You should have received a copy of the GNU General Public License along with
22 * this program; if not, write to the Free Software Foundation, Inc., 59
23 * Temple Place - Suite 330, Boston, MA 02111-1307, USA.
24 *
25 * CONTACTS:
26 *
27 * Matt Jared matt.jared@intel.com
28 * Andy Kopp andy.kopp@intel.com
29 * Dan Kogan dan.d.kogan@intel.com
30 *
31 * CHANGES:
32 *
33 * 2004.12.01 Major rewrite by tiwai, merged the work of pshou
34 *
35 */
36
37 #include <asm/io.h>
38 #include <linux/delay.h>
39 #include <linux/interrupt.h>
40 #include <linux/kernel.h>
41 #include <linux/module.h>
42 #include <linux/dma-mapping.h>
43 #include <linux/moduleparam.h>
44 #include <linux/init.h>
45 #include <linux/slab.h>
46 #include <linux/pci.h>
47 #include <linux/mutex.h>
48 #include <linux/reboot.h>
49 #include <sound/core.h>
50 #include <sound/initval.h>
51 #include "hda_codec.h"
52
53
54 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
55 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
56 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
57 static char *model[SNDRV_CARDS];
58 static int position_fix[SNDRV_CARDS];
59 static int bdl_pos_adj[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS-1)] = -1};
60 static int probe_mask[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS-1)] = -1};
61 static int probe_only[SNDRV_CARDS];
62 static int single_cmd;
63 static int enable_msi;
64 #ifdef CONFIG_SND_HDA_PATCH_LOADER
65 static char *patch[SNDRV_CARDS];
66 #endif
67
68 module_param_array(index, int, NULL, 0444);
69 MODULE_PARM_DESC(index, "Index value for Intel HD audio interface.");
70 module_param_array(id, charp, NULL, 0444);
71 MODULE_PARM_DESC(id, "ID string for Intel HD audio interface.");
72 module_param_array(enable, bool, NULL, 0444);
73 MODULE_PARM_DESC(enable, "Enable Intel HD audio interface.");
74 module_param_array(model, charp, NULL, 0444);
75 MODULE_PARM_DESC(model, "Use the given board model.");
76 module_param_array(position_fix, int, NULL, 0444);
77 MODULE_PARM_DESC(position_fix, "Fix DMA pointer "
78 "(0 = auto, 1 = none, 2 = POSBUF).");
79 module_param_array(bdl_pos_adj, int, NULL, 0644);
80 MODULE_PARM_DESC(bdl_pos_adj, "BDL position adjustment offset.");
81 module_param_array(probe_mask, int, NULL, 0444);
82 MODULE_PARM_DESC(probe_mask, "Bitmask to probe codecs (default = -1).");
83 module_param_array(probe_only, bool, NULL, 0444);
84 MODULE_PARM_DESC(probe_only, "Only probing and no codec initialization.");
85 module_param(single_cmd, bool, 0444);
86 MODULE_PARM_DESC(single_cmd, "Use single command to communicate with codecs "
87 "(for debugging only).");
88 module_param(enable_msi, int, 0444);
89 MODULE_PARM_DESC(enable_msi, "Enable Message Signaled Interrupt (MSI)");
90 #ifdef CONFIG_SND_HDA_PATCH_LOADER
91 module_param_array(patch, charp, NULL, 0444);
92 MODULE_PARM_DESC(patch, "Patch file for Intel HD audio interface.");
93 #endif
94
95 #ifdef CONFIG_SND_HDA_POWER_SAVE
96 static int power_save = CONFIG_SND_HDA_POWER_SAVE_DEFAULT;
97 module_param(power_save, int, 0644);
98 MODULE_PARM_DESC(power_save, "Automatic power-saving timeout "
99 "(in second, 0 = disable).");
100
101 /* reset the HD-audio controller in power save mode.
102 * this may give more power-saving, but will take longer time to
103 * wake up.
104 */
105 static int power_save_controller = 1;
106 module_param(power_save_controller, bool, 0644);
107 MODULE_PARM_DESC(power_save_controller, "Reset controller in power save mode.");
108 #endif
109
110 MODULE_LICENSE("GPL");
111 MODULE_SUPPORTED_DEVICE("{{Intel, ICH6},"
112 "{Intel, ICH6M},"
113 "{Intel, ICH7},"
114 "{Intel, ESB2},"
115 "{Intel, ICH8},"
116 "{Intel, ICH9},"
117 "{Intel, ICH10},"
118 "{Intel, PCH},"
119 "{Intel, SCH},"
120 "{ATI, SB450},"
121 "{ATI, SB600},"
122 "{ATI, RS600},"
123 "{ATI, RS690},"
124 "{ATI, RS780},"
125 "{ATI, R600},"
126 "{ATI, RV630},"
127 "{ATI, RV610},"
128 "{ATI, RV670},"
129 "{ATI, RV635},"
130 "{ATI, RV620},"
131 "{ATI, RV770},"
132 "{VIA, VT8251},"
133 "{VIA, VT8237A},"
134 "{SiS, SIS966},"
135 "{ULI, M5461}}");
136 MODULE_DESCRIPTION("Intel HDA driver");
137
138 #ifdef CONFIG_SND_VERBOSE_PRINTK
139 #define SFX /* nop */
140 #else
141 #define SFX "hda-intel: "
142 #endif
143
144 /*
145 * registers
146 */
147 #define ICH6_REG_GCAP 0x00
148 #define ICH6_GCAP_64OK (1 << 0) /* 64bit address support */
149 #define ICH6_GCAP_NSDO (3 << 1) /* # of serial data out signals */
150 #define ICH6_GCAP_BSS (31 << 3) /* # of bidirectional streams */
151 #define ICH6_GCAP_ISS (15 << 8) /* # of input streams */
152 #define ICH6_GCAP_OSS (15 << 12) /* # of output streams */
153 #define ICH6_REG_VMIN 0x02
154 #define ICH6_REG_VMAJ 0x03
155 #define ICH6_REG_OUTPAY 0x04
156 #define ICH6_REG_INPAY 0x06
157 #define ICH6_REG_GCTL 0x08
158 #define ICH6_GCTL_RESET (1 << 0) /* controller reset */
159 #define ICH6_GCTL_FCNTRL (1 << 1) /* flush control */
160 #define ICH6_GCTL_UNSOL (1 << 8) /* accept unsol. response enable */
161 #define ICH6_REG_WAKEEN 0x0c
162 #define ICH6_REG_STATESTS 0x0e
163 #define ICH6_REG_GSTS 0x10
164 #define ICH6_GSTS_FSTS (1 << 1) /* flush status */
165 #define ICH6_REG_INTCTL 0x20
166 #define ICH6_REG_INTSTS 0x24
167 #define ICH6_REG_WALCLK 0x30
168 #define ICH6_REG_SYNC 0x34
169 #define ICH6_REG_CORBLBASE 0x40
170 #define ICH6_REG_CORBUBASE 0x44
171 #define ICH6_REG_CORBWP 0x48
172 #define ICH6_REG_CORBRP 0x4a
173 #define ICH6_CORBRP_RST (1 << 15) /* read pointer reset */
174 #define ICH6_REG_CORBCTL 0x4c
175 #define ICH6_CORBCTL_RUN (1 << 1) /* enable DMA */
176 #define ICH6_CORBCTL_CMEIE (1 << 0) /* enable memory error irq */
177 #define ICH6_REG_CORBSTS 0x4d
178 #define ICH6_CORBSTS_CMEI (1 << 0) /* memory error indication */
179 #define ICH6_REG_CORBSIZE 0x4e
180
181 #define ICH6_REG_RIRBLBASE 0x50
182 #define ICH6_REG_RIRBUBASE 0x54
183 #define ICH6_REG_RIRBWP 0x58
184 #define ICH6_RIRBWP_RST (1 << 15) /* write pointer reset */
185 #define ICH6_REG_RINTCNT 0x5a
186 #define ICH6_REG_RIRBCTL 0x5c
187 #define ICH6_RBCTL_IRQ_EN (1 << 0) /* enable IRQ */
188 #define ICH6_RBCTL_DMA_EN (1 << 1) /* enable DMA */
189 #define ICH6_RBCTL_OVERRUN_EN (1 << 2) /* enable overrun irq */
190 #define ICH6_REG_RIRBSTS 0x5d
191 #define ICH6_RBSTS_IRQ (1 << 0) /* response irq */
192 #define ICH6_RBSTS_OVERRUN (1 << 2) /* overrun irq */
193 #define ICH6_REG_RIRBSIZE 0x5e
194
195 #define ICH6_REG_IC 0x60
196 #define ICH6_REG_IR 0x64
197 #define ICH6_REG_IRS 0x68
198 #define ICH6_IRS_VALID (1<<1)
199 #define ICH6_IRS_BUSY (1<<0)
200
201 #define ICH6_REG_DPLBASE 0x70
202 #define ICH6_REG_DPUBASE 0x74
203 #define ICH6_DPLBASE_ENABLE 0x1 /* Enable position buffer */
204
205 /* SD offset: SDI0=0x80, SDI1=0xa0, ... SDO3=0x160 */
206 enum { SDI0, SDI1, SDI2, SDI3, SDO0, SDO1, SDO2, SDO3 };
207
208 /* stream register offsets from stream base */
209 #define ICH6_REG_SD_CTL 0x00
210 #define ICH6_REG_SD_STS 0x03
211 #define ICH6_REG_SD_LPIB 0x04
212 #define ICH6_REG_SD_CBL 0x08
213 #define ICH6_REG_SD_LVI 0x0c
214 #define ICH6_REG_SD_FIFOW 0x0e
215 #define ICH6_REG_SD_FIFOSIZE 0x10
216 #define ICH6_REG_SD_FORMAT 0x12
217 #define ICH6_REG_SD_BDLPL 0x18
218 #define ICH6_REG_SD_BDLPU 0x1c
219
220 /* PCI space */
221 #define ICH6_PCIREG_TCSEL 0x44
222
223 /*
224 * other constants
225 */
226
227 /* max number of SDs */
228 /* ICH, ATI and VIA have 4 playback and 4 capture */
229 #define ICH6_NUM_CAPTURE 4
230 #define ICH6_NUM_PLAYBACK 4
231
232 /* ULI has 6 playback and 5 capture */
233 #define ULI_NUM_CAPTURE 5
234 #define ULI_NUM_PLAYBACK 6
235
236 /* ATI HDMI has 1 playback and 0 capture */
237 #define ATIHDMI_NUM_CAPTURE 0
238 #define ATIHDMI_NUM_PLAYBACK 1
239
240 /* TERA has 4 playback and 3 capture */
241 #define TERA_NUM_CAPTURE 3
242 #define TERA_NUM_PLAYBACK 4
243
244 /* this number is statically defined for simplicity */
245 #define MAX_AZX_DEV 16
246
247 /* max number of fragments - we may use more if allocating more pages for BDL */
248 #define BDL_SIZE 4096
249 #define AZX_MAX_BDL_ENTRIES (BDL_SIZE / 16)
250 #define AZX_MAX_FRAG 32
251 /* max buffer size - no h/w limit, you can increase as you like */
252 #define AZX_MAX_BUF_SIZE (1024*1024*1024)
253 /* max number of PCM devics per card */
254 #define AZX_MAX_PCMS 8
255
256 /* RIRB int mask: overrun[2], response[0] */
257 #define RIRB_INT_RESPONSE 0x01
258 #define RIRB_INT_OVERRUN 0x04
259 #define RIRB_INT_MASK 0x05
260
261 /* STATESTS int mask: S3,SD2,SD1,SD0 */
262 #define AZX_MAX_CODECS 4
263 #define STATESTS_INT_MASK ((1 << AZX_MAX_CODECS) - 1)
264
265 /* SD_CTL bits */
266 #define SD_CTL_STREAM_RESET 0x01 /* stream reset bit */
267 #define SD_CTL_DMA_START 0x02 /* stream DMA start bit */
268 #define SD_CTL_STRIPE (3 << 16) /* stripe control */
269 #define SD_CTL_TRAFFIC_PRIO (1 << 18) /* traffic priority */
270 #define SD_CTL_DIR (1 << 19) /* bi-directional stream */
271 #define SD_CTL_STREAM_TAG_MASK (0xf << 20)
272 #define SD_CTL_STREAM_TAG_SHIFT 20
273
274 /* SD_CTL and SD_STS */
275 #define SD_INT_DESC_ERR 0x10 /* descriptor error interrupt */
276 #define SD_INT_FIFO_ERR 0x08 /* FIFO error interrupt */
277 #define SD_INT_COMPLETE 0x04 /* completion interrupt */
278 #define SD_INT_MASK (SD_INT_DESC_ERR|SD_INT_FIFO_ERR|\
279 SD_INT_COMPLETE)
280
281 /* SD_STS */
282 #define SD_STS_FIFO_READY 0x20 /* FIFO ready */
283
284 /* INTCTL and INTSTS */
285 #define ICH6_INT_ALL_STREAM 0xff /* all stream interrupts */
286 #define ICH6_INT_CTRL_EN 0x40000000 /* controller interrupt enable bit */
287 #define ICH6_INT_GLOBAL_EN 0x80000000 /* global interrupt enable bit */
288
289 /* below are so far hardcoded - should read registers in future */
290 #define ICH6_MAX_CORB_ENTRIES 256
291 #define ICH6_MAX_RIRB_ENTRIES 256
292
293 /* position fix mode */
294 enum {
295 POS_FIX_AUTO,
296 POS_FIX_LPIB,
297 POS_FIX_POSBUF,
298 };
299
300 /* Defines for ATI HD Audio support in SB450 south bridge */
301 #define ATI_SB450_HDAUDIO_MISC_CNTR2_ADDR 0x42
302 #define ATI_SB450_HDAUDIO_ENABLE_SNOOP 0x02
303
304 /* Defines for Nvidia HDA support */
305 #define NVIDIA_HDA_TRANSREG_ADDR 0x4e
306 #define NVIDIA_HDA_ENABLE_COHBITS 0x0f
307 #define NVIDIA_HDA_ISTRM_COH 0x4d
308 #define NVIDIA_HDA_OSTRM_COH 0x4c
309 #define NVIDIA_HDA_ENABLE_COHBIT 0x01
310
311 /* Defines for Intel SCH HDA snoop control */
312 #define INTEL_SCH_HDA_DEVC 0x78
313 #define INTEL_SCH_HDA_DEVC_NOSNOOP (0x1<<11)
314
315 /* Define IN stream 0 FIFO size offset in VIA controller */
316 #define VIA_IN_STREAM0_FIFO_SIZE_OFFSET 0x90
317 /* Define VIA HD Audio Device ID*/
318 #define VIA_HDAC_DEVICE_ID 0x3288
319
320 /* HD Audio class code */
321 #define PCI_CLASS_MULTIMEDIA_HD_AUDIO 0x0403
322
323 /*
324 */
325
326 struct azx_dev {
327 struct snd_dma_buffer bdl; /* BDL buffer */
328 u32 *posbuf; /* position buffer pointer */
329
330 unsigned int bufsize; /* size of the play buffer in bytes */
331 unsigned int period_bytes; /* size of the period in bytes */
332 unsigned int frags; /* number for period in the play buffer */
333 unsigned int fifo_size; /* FIFO size */
334 unsigned long start_jiffies; /* start + minimum jiffies */
335 unsigned long min_jiffies; /* minimum jiffies before position is valid */
336
337 void __iomem *sd_addr; /* stream descriptor pointer */
338
339 u32 sd_int_sta_mask; /* stream int status mask */
340
341 /* pcm support */
342 struct snd_pcm_substream *substream; /* assigned substream,
343 * set in PCM open
344 */
345 unsigned int format_val; /* format value to be set in the
346 * controller and the codec
347 */
348 unsigned char stream_tag; /* assigned stream */
349 unsigned char index; /* stream index */
350
351 unsigned int opened :1;
352 unsigned int running :1;
353 unsigned int irq_pending :1;
354 unsigned int start_flag: 1; /* stream full start flag */
355 /*
356 * For VIA:
357 * A flag to ensure DMA position is 0
358 * when link position is not greater than FIFO size
359 */
360 unsigned int insufficient :1;
361 };
362
363 /* CORB/RIRB */
364 struct azx_rb {
365 u32 *buf; /* CORB/RIRB buffer
366 * Each CORB entry is 4byte, RIRB is 8byte
367 */
368 dma_addr_t addr; /* physical address of CORB/RIRB buffer */
369 /* for RIRB */
370 unsigned short rp, wp; /* read/write pointers */
371 int cmds[AZX_MAX_CODECS]; /* number of pending requests */
372 u32 res[AZX_MAX_CODECS]; /* last read value */
373 };
374
375 struct azx {
376 struct snd_card *card;
377 struct pci_dev *pci;
378 int dev_index;
379
380 /* chip type specific */
381 int driver_type;
382 int playback_streams;
383 int playback_index_offset;
384 int capture_streams;
385 int capture_index_offset;
386 int num_streams;
387
388 /* pci resources */
389 unsigned long addr;
390 void __iomem *remap_addr;
391 int irq;
392
393 /* locks */
394 spinlock_t reg_lock;
395 struct mutex open_mutex;
396
397 /* streams (x num_streams) */
398 struct azx_dev *azx_dev;
399
400 /* PCM */
401 struct snd_pcm *pcm[AZX_MAX_PCMS];
402
403 /* HD codec */
404 unsigned short codec_mask;
405 int codec_probe_mask; /* copied from probe_mask option */
406 struct hda_bus *bus;
407
408 /* CORB/RIRB */
409 struct azx_rb corb;
410 struct azx_rb rirb;
411
412 /* CORB/RIRB and position buffers */
413 struct snd_dma_buffer rb;
414 struct snd_dma_buffer posbuf;
415
416 /* flags */
417 int position_fix;
418 unsigned int running :1;
419 unsigned int initialized :1;
420 unsigned int single_cmd :1;
421 unsigned int polling_mode :1;
422 unsigned int msi :1;
423 unsigned int irq_pending_warned :1;
424 unsigned int via_dmapos_patch :1; /* enable DMA-position fix for VIA */
425 unsigned int probing :1; /* codec probing phase */
426
427 /* for debugging */
428 unsigned int last_cmd[AZX_MAX_CODECS];
429
430 /* for pending irqs */
431 struct work_struct irq_pending_work;
432
433 /* reboot notifier (for mysterious hangup problem at power-down) */
434 struct notifier_block reboot_notifier;
435 };
436
437 /* driver types */
438 enum {
439 AZX_DRIVER_ICH,
440 AZX_DRIVER_SCH,
441 AZX_DRIVER_ATI,
442 AZX_DRIVER_ATIHDMI,
443 AZX_DRIVER_VIA,
444 AZX_DRIVER_SIS,
445 AZX_DRIVER_ULI,
446 AZX_DRIVER_NVIDIA,
447 AZX_DRIVER_TERA,
448 AZX_DRIVER_GENERIC,
449 AZX_NUM_DRIVERS, /* keep this as last entry */
450 };
451
452 static char *driver_short_names[] __devinitdata = {
453 [AZX_DRIVER_ICH] = "HDA Intel",
454 [AZX_DRIVER_SCH] = "HDA Intel MID",
455 [AZX_DRIVER_ATI] = "HDA ATI SB",
456 [AZX_DRIVER_ATIHDMI] = "HDA ATI HDMI",
457 [AZX_DRIVER_VIA] = "HDA VIA VT82xx",
458 [AZX_DRIVER_SIS] = "HDA SIS966",
459 [AZX_DRIVER_ULI] = "HDA ULI M5461",
460 [AZX_DRIVER_NVIDIA] = "HDA NVidia",
461 [AZX_DRIVER_TERA] = "HDA Teradici",
462 [AZX_DRIVER_GENERIC] = "HD-Audio Generic",
463 };
464
465 /*
466 * macros for easy use
467 */
468 #define azx_writel(chip,reg,value) \
469 writel(value, (chip)->remap_addr + ICH6_REG_##reg)
470 #define azx_readl(chip,reg) \
471 readl((chip)->remap_addr + ICH6_REG_##reg)
472 #define azx_writew(chip,reg,value) \
473 writew(value, (chip)->remap_addr + ICH6_REG_##reg)
474 #define azx_readw(chip,reg) \
475 readw((chip)->remap_addr + ICH6_REG_##reg)
476 #define azx_writeb(chip,reg,value) \
477 writeb(value, (chip)->remap_addr + ICH6_REG_##reg)
478 #define azx_readb(chip,reg) \
479 readb((chip)->remap_addr + ICH6_REG_##reg)
480
481 #define azx_sd_writel(dev,reg,value) \
482 writel(value, (dev)->sd_addr + ICH6_REG_##reg)
483 #define azx_sd_readl(dev,reg) \
484 readl((dev)->sd_addr + ICH6_REG_##reg)
485 #define azx_sd_writew(dev,reg,value) \
486 writew(value, (dev)->sd_addr + ICH6_REG_##reg)
487 #define azx_sd_readw(dev,reg) \
488 readw((dev)->sd_addr + ICH6_REG_##reg)
489 #define azx_sd_writeb(dev,reg,value) \
490 writeb(value, (dev)->sd_addr + ICH6_REG_##reg)
491 #define azx_sd_readb(dev,reg) \
492 readb((dev)->sd_addr + ICH6_REG_##reg)
493
494 /* for pcm support */
495 #define get_azx_dev(substream) (substream->runtime->private_data)
496
497 static int azx_acquire_irq(struct azx *chip, int do_disconnect);
498
499 /*
500 * Interface for HD codec
501 */
502
503 /*
504 * CORB / RIRB interface
505 */
506 static int azx_alloc_cmd_io(struct azx *chip)
507 {
508 int err;
509
510 /* single page (at least 4096 bytes) must suffice for both ringbuffes */
511 err = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV,
512 snd_dma_pci_data(chip->pci),
513 PAGE_SIZE, &chip->rb);
514 if (err < 0) {
515 snd_printk(KERN_ERR SFX "cannot allocate CORB/RIRB\n");
516 return err;
517 }
518 return 0;
519 }
520
521 static void azx_init_cmd_io(struct azx *chip)
522 {
523 spin_lock_irq(&chip->reg_lock);
524 /* CORB set up */
525 chip->corb.addr = chip->rb.addr;
526 chip->corb.buf = (u32 *)chip->rb.area;
527 azx_writel(chip, CORBLBASE, (u32)chip->corb.addr);
528 azx_writel(chip, CORBUBASE, upper_32_bits(chip->corb.addr));
529
530 /* set the corb size to 256 entries (ULI requires explicitly) */
531 azx_writeb(chip, CORBSIZE, 0x02);
532 /* set the corb write pointer to 0 */
533 azx_writew(chip, CORBWP, 0);
534 /* reset the corb hw read pointer */
535 azx_writew(chip, CORBRP, ICH6_CORBRP_RST);
536 /* enable corb dma */
537 azx_writeb(chip, CORBCTL, ICH6_CORBCTL_RUN);
538
539 /* RIRB set up */
540 chip->rirb.addr = chip->rb.addr + 2048;
541 chip->rirb.buf = (u32 *)(chip->rb.area + 2048);
542 chip->rirb.wp = chip->rirb.rp = 0;
543 memset(chip->rirb.cmds, 0, sizeof(chip->rirb.cmds));
544 azx_writel(chip, RIRBLBASE, (u32)chip->rirb.addr);
545 azx_writel(chip, RIRBUBASE, upper_32_bits(chip->rirb.addr));
546
547 /* set the rirb size to 256 entries (ULI requires explicitly) */
548 azx_writeb(chip, RIRBSIZE, 0x02);
549 /* reset the rirb hw write pointer */
550 azx_writew(chip, RIRBWP, ICH6_RIRBWP_RST);
551 /* set N=1, get RIRB response interrupt for new entry */
552 azx_writew(chip, RINTCNT, 1);
553 /* enable rirb dma and response irq */
554 azx_writeb(chip, RIRBCTL, ICH6_RBCTL_DMA_EN | ICH6_RBCTL_IRQ_EN);
555 spin_unlock_irq(&chip->reg_lock);
556 }
557
558 static void azx_free_cmd_io(struct azx *chip)
559 {
560 spin_lock_irq(&chip->reg_lock);
561 /* disable ringbuffer DMAs */
562 azx_writeb(chip, RIRBCTL, 0);
563 azx_writeb(chip, CORBCTL, 0);
564 spin_unlock_irq(&chip->reg_lock);
565 }
566
567 static unsigned int azx_command_addr(u32 cmd)
568 {
569 unsigned int addr = cmd >> 28;
570
571 if (addr >= AZX_MAX_CODECS) {
572 snd_BUG();
573 addr = 0;
574 }
575
576 return addr;
577 }
578
579 static unsigned int azx_response_addr(u32 res)
580 {
581 unsigned int addr = res & 0xf;
582
583 if (addr >= AZX_MAX_CODECS) {
584 snd_BUG();
585 addr = 0;
586 }
587
588 return addr;
589 }
590
591 /* send a command */
592 static int azx_corb_send_cmd(struct hda_bus *bus, u32 val)
593 {
594 struct azx *chip = bus->private_data;
595 unsigned int addr = azx_command_addr(val);
596 unsigned int wp;
597
598 spin_lock_irq(&chip->reg_lock);
599
600 /* add command to corb */
601 wp = azx_readb(chip, CORBWP);
602 wp++;
603 wp %= ICH6_MAX_CORB_ENTRIES;
604
605 chip->rirb.cmds[addr]++;
606 chip->corb.buf[wp] = cpu_to_le32(val);
607 azx_writel(chip, CORBWP, wp);
608
609 spin_unlock_irq(&chip->reg_lock);
610
611 return 0;
612 }
613
614 #define ICH6_RIRB_EX_UNSOL_EV (1<<4)
615
616 /* retrieve RIRB entry - called from interrupt handler */
617 static void azx_update_rirb(struct azx *chip)
618 {
619 unsigned int rp, wp;
620 unsigned int addr;
621 u32 res, res_ex;
622
623 wp = azx_readb(chip, RIRBWP);
624 if (wp == chip->rirb.wp)
625 return;
626 chip->rirb.wp = wp;
627
628 while (chip->rirb.rp != wp) {
629 chip->rirb.rp++;
630 chip->rirb.rp %= ICH6_MAX_RIRB_ENTRIES;
631
632 rp = chip->rirb.rp << 1; /* an RIRB entry is 8-bytes */
633 res_ex = le32_to_cpu(chip->rirb.buf[rp + 1]);
634 res = le32_to_cpu(chip->rirb.buf[rp]);
635 addr = azx_response_addr(res_ex);
636 if (res_ex & ICH6_RIRB_EX_UNSOL_EV)
637 snd_hda_queue_unsol_event(chip->bus, res, res_ex);
638 else if (chip->rirb.cmds[addr]) {
639 chip->rirb.res[addr] = res;
640 smp_wmb();
641 chip->rirb.cmds[addr]--;
642 } else
643 snd_printk(KERN_ERR SFX "spurious response %#x:%#x, "
644 "last cmd=%#08x\n",
645 res, res_ex,
646 chip->last_cmd[addr]);
647 }
648 }
649
650 /* receive a response */
651 static unsigned int azx_rirb_get_response(struct hda_bus *bus,
652 unsigned int addr)
653 {
654 struct azx *chip = bus->private_data;
655 unsigned long timeout;
656
657 again:
658 timeout = jiffies + msecs_to_jiffies(1000);
659 for (;;) {
660 if (chip->polling_mode) {
661 spin_lock_irq(&chip->reg_lock);
662 azx_update_rirb(chip);
663 spin_unlock_irq(&chip->reg_lock);
664 }
665 if (!chip->rirb.cmds[addr]) {
666 smp_rmb();
667 bus->rirb_error = 0;
668 return chip->rirb.res[addr]; /* the last value */
669 }
670 if (time_after(jiffies, timeout))
671 break;
672 if (bus->needs_damn_long_delay)
673 msleep(2); /* temporary workaround */
674 else {
675 udelay(10);
676 cond_resched();
677 }
678 }
679
680 if (chip->msi) {
681 snd_printk(KERN_WARNING SFX "No response from codec, "
682 "disabling MSI: last cmd=0x%08x\n",
683 chip->last_cmd[addr]);
684 free_irq(chip->irq, chip);
685 chip->irq = -1;
686 pci_disable_msi(chip->pci);
687 chip->msi = 0;
688 if (azx_acquire_irq(chip, 1) < 0) {
689 bus->rirb_error = 1;
690 return -1;
691 }
692 goto again;
693 }
694
695 if (!chip->polling_mode) {
696 snd_printk(KERN_WARNING SFX "azx_get_response timeout, "
697 "switching to polling mode: last cmd=0x%08x\n",
698 chip->last_cmd[addr]);
699 chip->polling_mode = 1;
700 goto again;
701 }
702
703 if (chip->probing) {
704 /* If this critical timeout happens during the codec probing
705 * phase, this is likely an access to a non-existing codec
706 * slot. Better to return an error and reset the system.
707 */
708 return -1;
709 }
710
711 /* a fatal communication error; need either to reset or to fallback
712 * to the single_cmd mode
713 */
714 bus->rirb_error = 1;
715 if (bus->allow_bus_reset && !bus->response_reset && !bus->in_reset) {
716 bus->response_reset = 1;
717 return -1; /* give a chance to retry */
718 }
719
720 snd_printk(KERN_ERR "hda_intel: azx_get_response timeout, "
721 "switching to single_cmd mode: last cmd=0x%08x\n",
722 chip->last_cmd[addr]);
723 chip->single_cmd = 1;
724 bus->response_reset = 0;
725 /* release CORB/RIRB */
726 azx_free_cmd_io(chip);
727 /* disable unsolicited responses */
728 azx_writel(chip, GCTL, azx_readl(chip, GCTL) & ~ICH6_GCTL_UNSOL);
729 return -1;
730 }
731
732 /*
733 * Use the single immediate command instead of CORB/RIRB for simplicity
734 *
735 * Note: according to Intel, this is not preferred use. The command was
736 * intended for the BIOS only, and may get confused with unsolicited
737 * responses. So, we shouldn't use it for normal operation from the
738 * driver.
739 * I left the codes, however, for debugging/testing purposes.
740 */
741
742 /* receive a response */
743 static int azx_single_wait_for_response(struct azx *chip, unsigned int addr)
744 {
745 int timeout = 50;
746
747 while (timeout--) {
748 /* check IRV busy bit */
749 if (azx_readw(chip, IRS) & ICH6_IRS_VALID) {
750 /* reuse rirb.res as the response return value */
751 chip->rirb.res[addr] = azx_readl(chip, IR);
752 return 0;
753 }
754 udelay(1);
755 }
756 if (printk_ratelimit())
757 snd_printd(SFX "get_response timeout: IRS=0x%x\n",
758 azx_readw(chip, IRS));
759 chip->rirb.res[addr] = -1;
760 return -EIO;
761 }
762
763 /* send a command */
764 static int azx_single_send_cmd(struct hda_bus *bus, u32 val)
765 {
766 struct azx *chip = bus->private_data;
767 unsigned int addr = azx_command_addr(val);
768 int timeout = 50;
769
770 bus->rirb_error = 0;
771 while (timeout--) {
772 /* check ICB busy bit */
773 if (!((azx_readw(chip, IRS) & ICH6_IRS_BUSY))) {
774 /* Clear IRV valid bit */
775 azx_writew(chip, IRS, azx_readw(chip, IRS) |
776 ICH6_IRS_VALID);
777 azx_writel(chip, IC, val);
778 azx_writew(chip, IRS, azx_readw(chip, IRS) |
779 ICH6_IRS_BUSY);
780 return azx_single_wait_for_response(chip, addr);
781 }
782 udelay(1);
783 }
784 if (printk_ratelimit())
785 snd_printd(SFX "send_cmd timeout: IRS=0x%x, val=0x%x\n",
786 azx_readw(chip, IRS), val);
787 return -EIO;
788 }
789
790 /* receive a response */
791 static unsigned int azx_single_get_response(struct hda_bus *bus,
792 unsigned int addr)
793 {
794 struct azx *chip = bus->private_data;
795 return chip->rirb.res[addr];
796 }
797
798 /*
799 * The below are the main callbacks from hda_codec.
800 *
801 * They are just the skeleton to call sub-callbacks according to the
802 * current setting of chip->single_cmd.
803 */
804
805 /* send a command */
806 static int azx_send_cmd(struct hda_bus *bus, unsigned int val)
807 {
808 struct azx *chip = bus->private_data;
809
810 chip->last_cmd[azx_command_addr(val)] = val;
811 if (chip->single_cmd)
812 return azx_single_send_cmd(bus, val);
813 else
814 return azx_corb_send_cmd(bus, val);
815 }
816
817 /* get a response */
818 static unsigned int azx_get_response(struct hda_bus *bus,
819 unsigned int addr)
820 {
821 struct azx *chip = bus->private_data;
822 if (chip->single_cmd)
823 return azx_single_get_response(bus, addr);
824 else
825 return azx_rirb_get_response(bus, addr);
826 }
827
828 #ifdef CONFIG_SND_HDA_POWER_SAVE
829 static void azx_power_notify(struct hda_bus *bus);
830 #endif
831
832 /* reset codec link */
833 static int azx_reset(struct azx *chip)
834 {
835 int count;
836
837 /* clear STATESTS */
838 azx_writeb(chip, STATESTS, STATESTS_INT_MASK);
839
840 /* reset controller */
841 azx_writel(chip, GCTL, azx_readl(chip, GCTL) & ~ICH6_GCTL_RESET);
842
843 count = 50;
844 while (azx_readb(chip, GCTL) && --count)
845 msleep(1);
846
847 /* delay for >= 100us for codec PLL to settle per spec
848 * Rev 0.9 section 5.5.1
849 */
850 msleep(1);
851
852 /* Bring controller out of reset */
853 azx_writeb(chip, GCTL, azx_readb(chip, GCTL) | ICH6_GCTL_RESET);
854
855 count = 50;
856 while (!azx_readb(chip, GCTL) && --count)
857 msleep(1);
858
859 /* Brent Chartrand said to wait >= 540us for codecs to initialize */
860 msleep(1);
861
862 /* check to see if controller is ready */
863 if (!azx_readb(chip, GCTL)) {
864 snd_printd(SFX "azx_reset: controller not ready!\n");
865 return -EBUSY;
866 }
867
868 /* Accept unsolicited responses */
869 if (!chip->single_cmd)
870 azx_writel(chip, GCTL, azx_readl(chip, GCTL) |
871 ICH6_GCTL_UNSOL);
872
873 /* detect codecs */
874 if (!chip->codec_mask) {
875 chip->codec_mask = azx_readw(chip, STATESTS);
876 snd_printdd(SFX "codec_mask = 0x%x\n", chip->codec_mask);
877 }
878
879 return 0;
880 }
881
882
883 /*
884 * Lowlevel interface
885 */
886
887 /* enable interrupts */
888 static void azx_int_enable(struct azx *chip)
889 {
890 /* enable controller CIE and GIE */
891 azx_writel(chip, INTCTL, azx_readl(chip, INTCTL) |
892 ICH6_INT_CTRL_EN | ICH6_INT_GLOBAL_EN);
893 }
894
895 /* disable interrupts */
896 static void azx_int_disable(struct azx *chip)
897 {
898 int i;
899
900 /* disable interrupts in stream descriptor */
901 for (i = 0; i < chip->num_streams; i++) {
902 struct azx_dev *azx_dev = &chip->azx_dev[i];
903 azx_sd_writeb(azx_dev, SD_CTL,
904 azx_sd_readb(azx_dev, SD_CTL) & ~SD_INT_MASK);
905 }
906
907 /* disable SIE for all streams */
908 azx_writeb(chip, INTCTL, 0);
909
910 /* disable controller CIE and GIE */
911 azx_writel(chip, INTCTL, azx_readl(chip, INTCTL) &
912 ~(ICH6_INT_CTRL_EN | ICH6_INT_GLOBAL_EN));
913 }
914
915 /* clear interrupts */
916 static void azx_int_clear(struct azx *chip)
917 {
918 int i;
919
920 /* clear stream status */
921 for (i = 0; i < chip->num_streams; i++) {
922 struct azx_dev *azx_dev = &chip->azx_dev[i];
923 azx_sd_writeb(azx_dev, SD_STS, SD_INT_MASK);
924 }
925
926 /* clear STATESTS */
927 azx_writeb(chip, STATESTS, STATESTS_INT_MASK);
928
929 /* clear rirb status */
930 azx_writeb(chip, RIRBSTS, RIRB_INT_MASK);
931
932 /* clear int status */
933 azx_writel(chip, INTSTS, ICH6_INT_CTRL_EN | ICH6_INT_ALL_STREAM);
934 }
935
936 /* start a stream */
937 static void azx_stream_start(struct azx *chip, struct azx_dev *azx_dev)
938 {
939 /*
940 * Before stream start, initialize parameter
941 */
942 azx_dev->insufficient = 1;
943
944 /* enable SIE */
945 azx_writeb(chip, INTCTL,
946 azx_readb(chip, INTCTL) | (1 << azx_dev->index));
947 /* set DMA start and interrupt mask */
948 azx_sd_writeb(azx_dev, SD_CTL, azx_sd_readb(azx_dev, SD_CTL) |
949 SD_CTL_DMA_START | SD_INT_MASK);
950 }
951
952 /* stop DMA */
953 static void azx_stream_clear(struct azx *chip, struct azx_dev *azx_dev)
954 {
955 azx_sd_writeb(azx_dev, SD_CTL, azx_sd_readb(azx_dev, SD_CTL) &
956 ~(SD_CTL_DMA_START | SD_INT_MASK));
957 azx_sd_writeb(azx_dev, SD_STS, SD_INT_MASK); /* to be sure */
958 }
959
960 /* stop a stream */
961 static void azx_stream_stop(struct azx *chip, struct azx_dev *azx_dev)
962 {
963 azx_stream_clear(chip, azx_dev);
964 /* disable SIE */
965 azx_writeb(chip, INTCTL,
966 azx_readb(chip, INTCTL) & ~(1 << azx_dev->index));
967 }
968
969
970 /*
971 * reset and start the controller registers
972 */
973 static void azx_init_chip(struct azx *chip)
974 {
975 if (chip->initialized)
976 return;
977
978 /* reset controller */
979 azx_reset(chip);
980
981 /* initialize interrupts */
982 azx_int_clear(chip);
983 azx_int_enable(chip);
984
985 /* initialize the codec command I/O */
986 if (!chip->single_cmd)
987 azx_init_cmd_io(chip);
988
989 /* program the position buffer */
990 azx_writel(chip, DPLBASE, (u32)chip->posbuf.addr);
991 azx_writel(chip, DPUBASE, upper_32_bits(chip->posbuf.addr));
992
993 chip->initialized = 1;
994 }
995
996 /*
997 * initialize the PCI registers
998 */
999 /* update bits in a PCI register byte */
1000 static void update_pci_byte(struct pci_dev *pci, unsigned int reg,
1001 unsigned char mask, unsigned char val)
1002 {
1003 unsigned char data;
1004
1005 pci_read_config_byte(pci, reg, &data);
1006 data &= ~mask;
1007 data |= (val & mask);
1008 pci_write_config_byte(pci, reg, data);
1009 }
1010
1011 static void azx_init_pci(struct azx *chip)
1012 {
1013 unsigned short snoop;
1014
1015 /* Clear bits 0-2 of PCI register TCSEL (at offset 0x44)
1016 * TCSEL == Traffic Class Select Register, which sets PCI express QOS
1017 * Ensuring these bits are 0 clears playback static on some HD Audio
1018 * codecs
1019 */
1020 update_pci_byte(chip->pci, ICH6_PCIREG_TCSEL, 0x07, 0);
1021
1022 switch (chip->driver_type) {
1023 case AZX_DRIVER_ATI:
1024 /* For ATI SB450 azalia HD audio, we need to enable snoop */
1025 update_pci_byte(chip->pci,
1026 ATI_SB450_HDAUDIO_MISC_CNTR2_ADDR,
1027 0x07, ATI_SB450_HDAUDIO_ENABLE_SNOOP);
1028 break;
1029 case AZX_DRIVER_NVIDIA:
1030 /* For NVIDIA HDA, enable snoop */
1031 update_pci_byte(chip->pci,
1032 NVIDIA_HDA_TRANSREG_ADDR,
1033 0x0f, NVIDIA_HDA_ENABLE_COHBITS);
1034 update_pci_byte(chip->pci,
1035 NVIDIA_HDA_ISTRM_COH,
1036 0x01, NVIDIA_HDA_ENABLE_COHBIT);
1037 update_pci_byte(chip->pci,
1038 NVIDIA_HDA_OSTRM_COH,
1039 0x01, NVIDIA_HDA_ENABLE_COHBIT);
1040 break;
1041 case AZX_DRIVER_SCH:
1042 pci_read_config_word(chip->pci, INTEL_SCH_HDA_DEVC, &snoop);
1043 if (snoop & INTEL_SCH_HDA_DEVC_NOSNOOP) {
1044 pci_write_config_word(chip->pci, INTEL_SCH_HDA_DEVC,
1045 snoop & (~INTEL_SCH_HDA_DEVC_NOSNOOP));
1046 pci_read_config_word(chip->pci,
1047 INTEL_SCH_HDA_DEVC, &snoop);
1048 snd_printdd(SFX "HDA snoop disabled, enabling ... %s\n",
1049 (snoop & INTEL_SCH_HDA_DEVC_NOSNOOP)
1050 ? "Failed" : "OK");
1051 }
1052 break;
1053
1054 }
1055 }
1056
1057
1058 static int azx_position_ok(struct azx *chip, struct azx_dev *azx_dev);
1059
1060 /*
1061 * interrupt handler
1062 */
1063 static irqreturn_t azx_interrupt(int irq, void *dev_id)
1064 {
1065 struct azx *chip = dev_id;
1066 struct azx_dev *azx_dev;
1067 u32 status;
1068 int i, ok;
1069
1070 spin_lock(&chip->reg_lock);
1071
1072 status = azx_readl(chip, INTSTS);
1073 if (status == 0) {
1074 spin_unlock(&chip->reg_lock);
1075 return IRQ_NONE;
1076 }
1077
1078 for (i = 0; i < chip->num_streams; i++) {
1079 azx_dev = &chip->azx_dev[i];
1080 if (status & azx_dev->sd_int_sta_mask) {
1081 azx_sd_writeb(azx_dev, SD_STS, SD_INT_MASK);
1082 if (!azx_dev->substream || !azx_dev->running)
1083 continue;
1084 /* check whether this IRQ is really acceptable */
1085 ok = azx_position_ok(chip, azx_dev);
1086 if (ok == 1) {
1087 azx_dev->irq_pending = 0;
1088 spin_unlock(&chip->reg_lock);
1089 snd_pcm_period_elapsed(azx_dev->substream);
1090 spin_lock(&chip->reg_lock);
1091 } else if (ok == 0 && chip->bus && chip->bus->workq) {
1092 /* bogus IRQ, process it later */
1093 azx_dev->irq_pending = 1;
1094 queue_work(chip->bus->workq,
1095 &chip->irq_pending_work);
1096 }
1097 }
1098 }
1099
1100 /* clear rirb int */
1101 status = azx_readb(chip, RIRBSTS);
1102 if (status & RIRB_INT_MASK) {
1103 if (status & RIRB_INT_RESPONSE)
1104 azx_update_rirb(chip);
1105 azx_writeb(chip, RIRBSTS, RIRB_INT_MASK);
1106 }
1107
1108 #if 0
1109 /* clear state status int */
1110 if (azx_readb(chip, STATESTS) & 0x04)
1111 azx_writeb(chip, STATESTS, 0x04);
1112 #endif
1113 spin_unlock(&chip->reg_lock);
1114
1115 return IRQ_HANDLED;
1116 }
1117
1118
1119 /*
1120 * set up a BDL entry
1121 */
1122 static int setup_bdle(struct snd_pcm_substream *substream,
1123 struct azx_dev *azx_dev, u32 **bdlp,
1124 int ofs, int size, int with_ioc)
1125 {
1126 u32 *bdl = *bdlp;
1127
1128 while (size > 0) {
1129 dma_addr_t addr;
1130 int chunk;
1131
1132 if (azx_dev->frags >= AZX_MAX_BDL_ENTRIES)
1133 return -EINVAL;
1134
1135 addr = snd_pcm_sgbuf_get_addr(substream, ofs);
1136 /* program the address field of the BDL entry */
1137 bdl[0] = cpu_to_le32((u32)addr);
1138 bdl[1] = cpu_to_le32(upper_32_bits(addr));
1139 /* program the size field of the BDL entry */
1140 chunk = snd_pcm_sgbuf_get_chunk_size(substream, ofs, size);
1141 bdl[2] = cpu_to_le32(chunk);
1142 /* program the IOC to enable interrupt
1143 * only when the whole fragment is processed
1144 */
1145 size -= chunk;
1146 bdl[3] = (size || !with_ioc) ? 0 : cpu_to_le32(0x01);
1147 bdl += 4;
1148 azx_dev->frags++;
1149 ofs += chunk;
1150 }
1151 *bdlp = bdl;
1152 return ofs;
1153 }
1154
1155 /*
1156 * set up BDL entries
1157 */
1158 static int azx_setup_periods(struct azx *chip,
1159 struct snd_pcm_substream *substream,
1160 struct azx_dev *azx_dev)
1161 {
1162 u32 *bdl;
1163 int i, ofs, periods, period_bytes;
1164 int pos_adj;
1165
1166 /* reset BDL address */
1167 azx_sd_writel(azx_dev, SD_BDLPL, 0);
1168 azx_sd_writel(azx_dev, SD_BDLPU, 0);
1169
1170 period_bytes = azx_dev->period_bytes;
1171 periods = azx_dev->bufsize / period_bytes;
1172
1173 /* program the initial BDL entries */
1174 bdl = (u32 *)azx_dev->bdl.area;
1175 ofs = 0;
1176 azx_dev->frags = 0;
1177 pos_adj = bdl_pos_adj[chip->dev_index];
1178 if (pos_adj > 0) {
1179 struct snd_pcm_runtime *runtime = substream->runtime;
1180 int pos_align = pos_adj;
1181 pos_adj = (pos_adj * runtime->rate + 47999) / 48000;
1182 if (!pos_adj)
1183 pos_adj = pos_align;
1184 else
1185 pos_adj = ((pos_adj + pos_align - 1) / pos_align) *
1186 pos_align;
1187 pos_adj = frames_to_bytes(runtime, pos_adj);
1188 if (pos_adj >= period_bytes) {
1189 snd_printk(KERN_WARNING SFX "Too big adjustment %d\n",
1190 bdl_pos_adj[chip->dev_index]);
1191 pos_adj = 0;
1192 } else {
1193 ofs = setup_bdle(substream, azx_dev,
1194 &bdl, ofs, pos_adj, 1);
1195 if (ofs < 0)
1196 goto error;
1197 }
1198 } else
1199 pos_adj = 0;
1200 for (i = 0; i < periods; i++) {
1201 if (i == periods - 1 && pos_adj)
1202 ofs = setup_bdle(substream, azx_dev, &bdl, ofs,
1203 period_bytes - pos_adj, 0);
1204 else
1205 ofs = setup_bdle(substream, azx_dev, &bdl, ofs,
1206 period_bytes, 1);
1207 if (ofs < 0)
1208 goto error;
1209 }
1210 return 0;
1211
1212 error:
1213 snd_printk(KERN_ERR SFX "Too many BDL entries: buffer=%d, period=%d\n",
1214 azx_dev->bufsize, period_bytes);
1215 return -EINVAL;
1216 }
1217
1218 /* reset stream */
1219 static void azx_stream_reset(struct azx *chip, struct azx_dev *azx_dev)
1220 {
1221 unsigned char val;
1222 int timeout;
1223
1224 azx_stream_clear(chip, azx_dev);
1225
1226 azx_sd_writeb(azx_dev, SD_CTL, azx_sd_readb(azx_dev, SD_CTL) |
1227 SD_CTL_STREAM_RESET);
1228 udelay(3);
1229 timeout = 300;
1230 while (!((val = azx_sd_readb(azx_dev, SD_CTL)) & SD_CTL_STREAM_RESET) &&
1231 --timeout)
1232 ;
1233 val &= ~SD_CTL_STREAM_RESET;
1234 azx_sd_writeb(azx_dev, SD_CTL, val);
1235 udelay(3);
1236
1237 timeout = 300;
1238 /* waiting for hardware to report that the stream is out of reset */
1239 while (((val = azx_sd_readb(azx_dev, SD_CTL)) & SD_CTL_STREAM_RESET) &&
1240 --timeout)
1241 ;
1242
1243 /* reset first position - may not be synced with hw at this time */
1244 *azx_dev->posbuf = 0;
1245 }
1246
1247 /*
1248 * set up the SD for streaming
1249 */
1250 static int azx_setup_controller(struct azx *chip, struct azx_dev *azx_dev)
1251 {
1252 /* make sure the run bit is zero for SD */
1253 azx_stream_clear(chip, azx_dev);
1254 /* program the stream_tag */
1255 azx_sd_writel(azx_dev, SD_CTL,
1256 (azx_sd_readl(azx_dev, SD_CTL) & ~SD_CTL_STREAM_TAG_MASK)|
1257 (azx_dev->stream_tag << SD_CTL_STREAM_TAG_SHIFT));
1258
1259 /* program the length of samples in cyclic buffer */
1260 azx_sd_writel(azx_dev, SD_CBL, azx_dev->bufsize);
1261
1262 /* program the stream format */
1263 /* this value needs to be the same as the one programmed */
1264 azx_sd_writew(azx_dev, SD_FORMAT, azx_dev->format_val);
1265
1266 /* program the stream LVI (last valid index) of the BDL */
1267 azx_sd_writew(azx_dev, SD_LVI, azx_dev->frags - 1);
1268
1269 /* program the BDL address */
1270 /* lower BDL address */
1271 azx_sd_writel(azx_dev, SD_BDLPL, (u32)azx_dev->bdl.addr);
1272 /* upper BDL address */
1273 azx_sd_writel(azx_dev, SD_BDLPU, upper_32_bits(azx_dev->bdl.addr));
1274
1275 /* enable the position buffer */
1276 if (chip->position_fix == POS_FIX_POSBUF ||
1277 chip->position_fix == POS_FIX_AUTO ||
1278 chip->via_dmapos_patch) {
1279 if (!(azx_readl(chip, DPLBASE) & ICH6_DPLBASE_ENABLE))
1280 azx_writel(chip, DPLBASE,
1281 (u32)chip->posbuf.addr | ICH6_DPLBASE_ENABLE);
1282 }
1283
1284 /* set the interrupt enable bits in the descriptor control register */
1285 azx_sd_writel(azx_dev, SD_CTL,
1286 azx_sd_readl(azx_dev, SD_CTL) | SD_INT_MASK);
1287
1288 return 0;
1289 }
1290
1291 /*
1292 * Probe the given codec address
1293 */
1294 static int probe_codec(struct azx *chip, int addr)
1295 {
1296 unsigned int cmd = (addr << 28) | (AC_NODE_ROOT << 20) |
1297 (AC_VERB_PARAMETERS << 8) | AC_PAR_VENDOR_ID;
1298 unsigned int res;
1299
1300 mutex_lock(&chip->bus->cmd_mutex);
1301 chip->probing = 1;
1302 azx_send_cmd(chip->bus, cmd);
1303 res = azx_get_response(chip->bus, addr);
1304 chip->probing = 0;
1305 mutex_unlock(&chip->bus->cmd_mutex);
1306 if (res == -1)
1307 return -EIO;
1308 snd_printdd(SFX "codec #%d probed OK\n", addr);
1309 return 0;
1310 }
1311
1312 static int azx_attach_pcm_stream(struct hda_bus *bus, struct hda_codec *codec,
1313 struct hda_pcm *cpcm);
1314 static void azx_stop_chip(struct azx *chip);
1315
1316 static void azx_bus_reset(struct hda_bus *bus)
1317 {
1318 struct azx *chip = bus->private_data;
1319
1320 bus->in_reset = 1;
1321 azx_stop_chip(chip);
1322 azx_init_chip(chip);
1323 #ifdef CONFIG_PM
1324 if (chip->initialized) {
1325 int i;
1326
1327 for (i = 0; i < AZX_MAX_PCMS; i++)
1328 snd_pcm_suspend_all(chip->pcm[i]);
1329 snd_hda_suspend(chip->bus);
1330 snd_hda_resume(chip->bus);
1331 }
1332 #endif
1333 bus->in_reset = 0;
1334 }
1335
1336 /*
1337 * Codec initialization
1338 */
1339
1340 /* number of codec slots for each chipset: 0 = default slots (i.e. 4) */
1341 static unsigned int azx_max_codecs[AZX_NUM_DRIVERS] __devinitdata = {
1342 [AZX_DRIVER_TERA] = 1,
1343 };
1344
1345 static int __devinit azx_codec_create(struct azx *chip, const char *model)
1346 {
1347 struct hda_bus_template bus_temp;
1348 int c, codecs, err;
1349 int max_slots;
1350
1351 memset(&bus_temp, 0, sizeof(bus_temp));
1352 bus_temp.private_data = chip;
1353 bus_temp.modelname = model;
1354 bus_temp.pci = chip->pci;
1355 bus_temp.ops.command = azx_send_cmd;
1356 bus_temp.ops.get_response = azx_get_response;
1357 bus_temp.ops.attach_pcm = azx_attach_pcm_stream;
1358 bus_temp.ops.bus_reset = azx_bus_reset;
1359 #ifdef CONFIG_SND_HDA_POWER_SAVE
1360 bus_temp.power_save = &power_save;
1361 bus_temp.ops.pm_notify = azx_power_notify;
1362 #endif
1363
1364 err = snd_hda_bus_new(chip->card, &bus_temp, &chip->bus);
1365 if (err < 0)
1366 return err;
1367
1368 if (chip->driver_type == AZX_DRIVER_NVIDIA)
1369 chip->bus->needs_damn_long_delay = 1;
1370
1371 codecs = 0;
1372 max_slots = azx_max_codecs[chip->driver_type];
1373 if (!max_slots)
1374 max_slots = AZX_MAX_CODECS;
1375
1376 /* First try to probe all given codec slots */
1377 for (c = 0; c < max_slots; c++) {
1378 if ((chip->codec_mask & (1 << c)) & chip->codec_probe_mask) {
1379 if (probe_codec(chip, c) < 0) {
1380 /* Some BIOSen give you wrong codec addresses
1381 * that don't exist
1382 */
1383 snd_printk(KERN_WARNING SFX
1384 "Codec #%d probe error; "
1385 "disabling it...\n", c);
1386 chip->codec_mask &= ~(1 << c);
1387 /* More badly, accessing to a non-existing
1388 * codec often screws up the controller chip,
1389 * and distrubs the further communications.
1390 * Thus if an error occurs during probing,
1391 * better to reset the controller chip to
1392 * get back to the sanity state.
1393 */
1394 azx_stop_chip(chip);
1395 azx_init_chip(chip);
1396 }
1397 }
1398 }
1399
1400 /* Then create codec instances */
1401 for (c = 0; c < max_slots; c++) {
1402 if ((chip->codec_mask & (1 << c)) & chip->codec_probe_mask) {
1403 struct hda_codec *codec;
1404 err = snd_hda_codec_new(chip->bus, c, &codec);
1405 if (err < 0)
1406 continue;
1407 codecs++;
1408 }
1409 }
1410 if (!codecs) {
1411 snd_printk(KERN_ERR SFX "no codecs initialized\n");
1412 return -ENXIO;
1413 }
1414 return 0;
1415 }
1416
1417 /* configure each codec instance */
1418 static int __devinit azx_codec_configure(struct azx *chip)
1419 {
1420 struct hda_codec *codec;
1421 list_for_each_entry(codec, &chip->bus->codec_list, list) {
1422 snd_hda_codec_configure(codec);
1423 }
1424 return 0;
1425 }
1426
1427
1428 /*
1429 * PCM support
1430 */
1431
1432 /* assign a stream for the PCM */
1433 static inline struct azx_dev *azx_assign_device(struct azx *chip, int stream)
1434 {
1435 int dev, i, nums;
1436 if (stream == SNDRV_PCM_STREAM_PLAYBACK) {
1437 dev = chip->playback_index_offset;
1438 nums = chip->playback_streams;
1439 } else {
1440 dev = chip->capture_index_offset;
1441 nums = chip->capture_streams;
1442 }
1443 for (i = 0; i < nums; i++, dev++)
1444 if (!chip->azx_dev[dev].opened) {
1445 chip->azx_dev[dev].opened = 1;
1446 return &chip->azx_dev[dev];
1447 }
1448 return NULL;
1449 }
1450
1451 /* release the assigned stream */
1452 static inline void azx_release_device(struct azx_dev *azx_dev)
1453 {
1454 azx_dev->opened = 0;
1455 }
1456
1457 static struct snd_pcm_hardware azx_pcm_hw = {
1458 .info = (SNDRV_PCM_INFO_MMAP |
1459 SNDRV_PCM_INFO_INTERLEAVED |
1460 SNDRV_PCM_INFO_BLOCK_TRANSFER |
1461 SNDRV_PCM_INFO_MMAP_VALID |
1462 /* No full-resume yet implemented */
1463 /* SNDRV_PCM_INFO_RESUME |*/
1464 SNDRV_PCM_INFO_PAUSE |
1465 SNDRV_PCM_INFO_SYNC_START),
1466 .formats = SNDRV_PCM_FMTBIT_S16_LE,
1467 .rates = SNDRV_PCM_RATE_48000,
1468 .rate_min = 48000,
1469 .rate_max = 48000,
1470 .channels_min = 2,
1471 .channels_max = 2,
1472 .buffer_bytes_max = AZX_MAX_BUF_SIZE,
1473 .period_bytes_min = 128,
1474 .period_bytes_max = AZX_MAX_BUF_SIZE / 2,
1475 .periods_min = 2,
1476 .periods_max = AZX_MAX_FRAG,
1477 .fifo_size = 0,
1478 };
1479
1480 struct azx_pcm {
1481 struct azx *chip;
1482 struct hda_codec *codec;
1483 struct hda_pcm_stream *hinfo[2];
1484 };
1485
1486 static int azx_pcm_open(struct snd_pcm_substream *substream)
1487 {
1488 struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
1489 struct hda_pcm_stream *hinfo = apcm->hinfo[substream->stream];
1490 struct azx *chip = apcm->chip;
1491 struct azx_dev *azx_dev;
1492 struct snd_pcm_runtime *runtime = substream->runtime;
1493 unsigned long flags;
1494 int err;
1495
1496 mutex_lock(&chip->open_mutex);
1497 azx_dev = azx_assign_device(chip, substream->stream);
1498 if (azx_dev == NULL) {
1499 mutex_unlock(&chip->open_mutex);
1500 return -EBUSY;
1501 }
1502 runtime->hw = azx_pcm_hw;
1503 runtime->hw.channels_min = hinfo->channels_min;
1504 runtime->hw.channels_max = hinfo->channels_max;
1505 runtime->hw.formats = hinfo->formats;
1506 runtime->hw.rates = hinfo->rates;
1507 snd_pcm_limit_hw_rates(runtime);
1508 snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS);
1509 snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_BUFFER_BYTES,
1510 128);
1511 snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES,
1512 128);
1513 snd_hda_power_up(apcm->codec);
1514 err = hinfo->ops.open(hinfo, apcm->codec, substream);
1515 if (err < 0) {
1516 azx_release_device(azx_dev);
1517 snd_hda_power_down(apcm->codec);
1518 mutex_unlock(&chip->open_mutex);
1519 return err;
1520 }
1521 snd_pcm_limit_hw_rates(runtime);
1522 /* sanity check */
1523 if (snd_BUG_ON(!runtime->hw.channels_min) ||
1524 snd_BUG_ON(!runtime->hw.channels_max) ||
1525 snd_BUG_ON(!runtime->hw.formats) ||
1526 snd_BUG_ON(!runtime->hw.rates)) {
1527 azx_release_device(azx_dev);
1528 hinfo->ops.close(hinfo, apcm->codec, substream);
1529 snd_hda_power_down(apcm->codec);
1530 mutex_unlock(&chip->open_mutex);
1531 return -EINVAL;
1532 }
1533 spin_lock_irqsave(&chip->reg_lock, flags);
1534 azx_dev->substream = substream;
1535 azx_dev->running = 0;
1536 spin_unlock_irqrestore(&chip->reg_lock, flags);
1537
1538 runtime->private_data = azx_dev;
1539 snd_pcm_set_sync(substream);
1540 mutex_unlock(&chip->open_mutex);
1541 return 0;
1542 }
1543
1544 static int azx_pcm_close(struct snd_pcm_substream *substream)
1545 {
1546 struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
1547 struct hda_pcm_stream *hinfo = apcm->hinfo[substream->stream];
1548 struct azx *chip = apcm->chip;
1549 struct azx_dev *azx_dev = get_azx_dev(substream);
1550 unsigned long flags;
1551
1552 mutex_lock(&chip->open_mutex);
1553 spin_lock_irqsave(&chip->reg_lock, flags);
1554 azx_dev->substream = NULL;
1555 azx_dev->running = 0;
1556 spin_unlock_irqrestore(&chip->reg_lock, flags);
1557 azx_release_device(azx_dev);
1558 hinfo->ops.close(hinfo, apcm->codec, substream);
1559 snd_hda_power_down(apcm->codec);
1560 mutex_unlock(&chip->open_mutex);
1561 return 0;
1562 }
1563
1564 static int azx_pcm_hw_params(struct snd_pcm_substream *substream,
1565 struct snd_pcm_hw_params *hw_params)
1566 {
1567 struct azx_dev *azx_dev = get_azx_dev(substream);
1568
1569 azx_dev->bufsize = 0;
1570 azx_dev->period_bytes = 0;
1571 azx_dev->format_val = 0;
1572 return snd_pcm_lib_malloc_pages(substream,
1573 params_buffer_bytes(hw_params));
1574 }
1575
1576 static int azx_pcm_hw_free(struct snd_pcm_substream *substream)
1577 {
1578 struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
1579 struct azx_dev *azx_dev = get_azx_dev(substream);
1580 struct hda_pcm_stream *hinfo = apcm->hinfo[substream->stream];
1581
1582 /* reset BDL address */
1583 azx_sd_writel(azx_dev, SD_BDLPL, 0);
1584 azx_sd_writel(azx_dev, SD_BDLPU, 0);
1585 azx_sd_writel(azx_dev, SD_CTL, 0);
1586 azx_dev->bufsize = 0;
1587 azx_dev->period_bytes = 0;
1588 azx_dev->format_val = 0;
1589
1590 hinfo->ops.cleanup(hinfo, apcm->codec, substream);
1591
1592 return snd_pcm_lib_free_pages(substream);
1593 }
1594
1595 static int azx_pcm_prepare(struct snd_pcm_substream *substream)
1596 {
1597 struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
1598 struct azx *chip = apcm->chip;
1599 struct azx_dev *azx_dev = get_azx_dev(substream);
1600 struct hda_pcm_stream *hinfo = apcm->hinfo[substream->stream];
1601 struct snd_pcm_runtime *runtime = substream->runtime;
1602 unsigned int bufsize, period_bytes, format_val;
1603 int err;
1604
1605 azx_stream_reset(chip, azx_dev);
1606 format_val = snd_hda_calc_stream_format(runtime->rate,
1607 runtime->channels,
1608 runtime->format,
1609 hinfo->maxbps);
1610 if (!format_val) {
1611 snd_printk(KERN_ERR SFX
1612 "invalid format_val, rate=%d, ch=%d, format=%d\n",
1613 runtime->rate, runtime->channels, runtime->format);
1614 return -EINVAL;
1615 }
1616
1617 bufsize = snd_pcm_lib_buffer_bytes(substream);
1618 period_bytes = snd_pcm_lib_period_bytes(substream);
1619
1620 snd_printdd(SFX "azx_pcm_prepare: bufsize=0x%x, format=0x%x\n",
1621 bufsize, format_val);
1622
1623 if (bufsize != azx_dev->bufsize ||
1624 period_bytes != azx_dev->period_bytes ||
1625 format_val != azx_dev->format_val) {
1626 azx_dev->bufsize = bufsize;
1627 azx_dev->period_bytes = period_bytes;
1628 azx_dev->format_val = format_val;
1629 err = azx_setup_periods(chip, substream, azx_dev);
1630 if (err < 0)
1631 return err;
1632 }
1633
1634 azx_dev->min_jiffies = (runtime->period_size * HZ) /
1635 (runtime->rate * 2);
1636 azx_setup_controller(chip, azx_dev);
1637 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
1638 azx_dev->fifo_size = azx_sd_readw(azx_dev, SD_FIFOSIZE) + 1;
1639 else
1640 azx_dev->fifo_size = 0;
1641
1642 return hinfo->ops.prepare(hinfo, apcm->codec, azx_dev->stream_tag,
1643 azx_dev->format_val, substream);
1644 }
1645
1646 static int azx_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
1647 {
1648 struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
1649 struct azx *chip = apcm->chip;
1650 struct azx_dev *azx_dev;
1651 struct snd_pcm_substream *s;
1652 int rstart = 0, start, nsync = 0, sbits = 0;
1653 int nwait, timeout;
1654
1655 switch (cmd) {
1656 case SNDRV_PCM_TRIGGER_START:
1657 rstart = 1;
1658 case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
1659 case SNDRV_PCM_TRIGGER_RESUME:
1660 start = 1;
1661 break;
1662 case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
1663 case SNDRV_PCM_TRIGGER_SUSPEND:
1664 case SNDRV_PCM_TRIGGER_STOP:
1665 start = 0;
1666 break;
1667 default:
1668 return -EINVAL;
1669 }
1670
1671 snd_pcm_group_for_each_entry(s, substream) {
1672 if (s->pcm->card != substream->pcm->card)
1673 continue;
1674 azx_dev = get_azx_dev(s);
1675 sbits |= 1 << azx_dev->index;
1676 nsync++;
1677 snd_pcm_trigger_done(s, substream);
1678 }
1679
1680 spin_lock(&chip->reg_lock);
1681 if (nsync > 1) {
1682 /* first, set SYNC bits of corresponding streams */
1683 azx_writel(chip, SYNC, azx_readl(chip, SYNC) | sbits);
1684 }
1685 snd_pcm_group_for_each_entry(s, substream) {
1686 if (s->pcm->card != substream->pcm->card)
1687 continue;
1688 azx_dev = get_azx_dev(s);
1689 if (rstart) {
1690 azx_dev->start_flag = 1;
1691 azx_dev->start_jiffies = jiffies + azx_dev->min_jiffies;
1692 }
1693 if (start)
1694 azx_stream_start(chip, azx_dev);
1695 else
1696 azx_stream_stop(chip, azx_dev);
1697 azx_dev->running = start;
1698 }
1699 spin_unlock(&chip->reg_lock);
1700 if (start) {
1701 if (nsync == 1)
1702 return 0;
1703 /* wait until all FIFOs get ready */
1704 for (timeout = 5000; timeout; timeout--) {
1705 nwait = 0;
1706 snd_pcm_group_for_each_entry(s, substream) {
1707 if (s->pcm->card != substream->pcm->card)
1708 continue;
1709 azx_dev = get_azx_dev(s);
1710 if (!(azx_sd_readb(azx_dev, SD_STS) &
1711 SD_STS_FIFO_READY))
1712 nwait++;
1713 }
1714 if (!nwait)
1715 break;
1716 cpu_relax();
1717 }
1718 } else {
1719 /* wait until all RUN bits are cleared */
1720 for (timeout = 5000; timeout; timeout--) {
1721 nwait = 0;
1722 snd_pcm_group_for_each_entry(s, substream) {
1723 if (s->pcm->card != substream->pcm->card)
1724 continue;
1725 azx_dev = get_azx_dev(s);
1726 if (azx_sd_readb(azx_dev, SD_CTL) &
1727 SD_CTL_DMA_START)
1728 nwait++;
1729 }
1730 if (!nwait)
1731 break;
1732 cpu_relax();
1733 }
1734 }
1735 if (nsync > 1) {
1736 spin_lock(&chip->reg_lock);
1737 /* reset SYNC bits */
1738 azx_writel(chip, SYNC, azx_readl(chip, SYNC) & ~sbits);
1739 spin_unlock(&chip->reg_lock);
1740 }
1741 return 0;
1742 }
1743
1744 /* get the current DMA position with correction on VIA chips */
1745 static unsigned int azx_via_get_position(struct azx *chip,
1746 struct azx_dev *azx_dev)
1747 {
1748 unsigned int link_pos, mini_pos, bound_pos;
1749 unsigned int mod_link_pos, mod_dma_pos, mod_mini_pos;
1750 unsigned int fifo_size;
1751
1752 link_pos = azx_sd_readl(azx_dev, SD_LPIB);
1753 if (azx_dev->index >= 4) {
1754 /* Playback, no problem using link position */
1755 return link_pos;
1756 }
1757
1758 /* Capture */
1759 /* For new chipset,
1760 * use mod to get the DMA position just like old chipset
1761 */
1762 mod_dma_pos = le32_to_cpu(*azx_dev->posbuf);
1763 mod_dma_pos %= azx_dev->period_bytes;
1764
1765 /* azx_dev->fifo_size can't get FIFO size of in stream.
1766 * Get from base address + offset.
1767 */
1768 fifo_size = readw(chip->remap_addr + VIA_IN_STREAM0_FIFO_SIZE_OFFSET);
1769
1770 if (azx_dev->insufficient) {
1771 /* Link position never gather than FIFO size */
1772 if (link_pos <= fifo_size)
1773 return 0;
1774
1775 azx_dev->insufficient = 0;
1776 }
1777
1778 if (link_pos <= fifo_size)
1779 mini_pos = azx_dev->bufsize + link_pos - fifo_size;
1780 else
1781 mini_pos = link_pos - fifo_size;
1782
1783 /* Find nearest previous boudary */
1784 mod_mini_pos = mini_pos % azx_dev->period_bytes;
1785 mod_link_pos = link_pos % azx_dev->period_bytes;
1786 if (mod_link_pos >= fifo_size)
1787 bound_pos = link_pos - mod_link_pos;
1788 else if (mod_dma_pos >= mod_mini_pos)
1789 bound_pos = mini_pos - mod_mini_pos;
1790 else {
1791 bound_pos = mini_pos - mod_mini_pos + azx_dev->period_bytes;
1792 if (bound_pos >= azx_dev->bufsize)
1793 bound_pos = 0;
1794 }
1795
1796 /* Calculate real DMA position we want */
1797 return bound_pos + mod_dma_pos;
1798 }
1799
1800 static unsigned int azx_get_position(struct azx *chip,
1801 struct azx_dev *azx_dev)
1802 {
1803 unsigned int pos;
1804
1805 if (chip->via_dmapos_patch)
1806 pos = azx_via_get_position(chip, azx_dev);
1807 else if (chip->position_fix == POS_FIX_POSBUF ||
1808 chip->position_fix == POS_FIX_AUTO) {
1809 /* use the position buffer */
1810 pos = le32_to_cpu(*azx_dev->posbuf);
1811 } else {
1812 /* read LPIB */
1813 pos = azx_sd_readl(azx_dev, SD_LPIB);
1814 }
1815 if (pos >= azx_dev->bufsize)
1816 pos = 0;
1817 return pos;
1818 }
1819
1820 static snd_pcm_uframes_t azx_pcm_pointer(struct snd_pcm_substream *substream)
1821 {
1822 struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
1823 struct azx *chip = apcm->chip;
1824 struct azx_dev *azx_dev = get_azx_dev(substream);
1825 return bytes_to_frames(substream->runtime,
1826 azx_get_position(chip, azx_dev));
1827 }
1828
1829 /*
1830 * Check whether the current DMA position is acceptable for updating
1831 * periods. Returns non-zero if it's OK.
1832 *
1833 * Many HD-audio controllers appear pretty inaccurate about
1834 * the update-IRQ timing. The IRQ is issued before actually the
1835 * data is processed. So, we need to process it afterwords in a
1836 * workqueue.
1837 */
1838 static int azx_position_ok(struct azx *chip, struct azx_dev *azx_dev)
1839 {
1840 unsigned int pos;
1841
1842 if (azx_dev->start_flag &&
1843 time_before_eq(jiffies, azx_dev->start_jiffies))
1844 return -1; /* bogus (too early) interrupt */
1845 azx_dev->start_flag = 0;
1846
1847 pos = azx_get_position(chip, azx_dev);
1848 if (chip->position_fix == POS_FIX_AUTO) {
1849 if (!pos) {
1850 printk(KERN_WARNING
1851 "hda-intel: Invalid position buffer, "
1852 "using LPIB read method instead.\n");
1853 chip->position_fix = POS_FIX_LPIB;
1854 pos = azx_get_position(chip, azx_dev);
1855 } else
1856 chip->position_fix = POS_FIX_POSBUF;
1857 }
1858
1859 if (!bdl_pos_adj[chip->dev_index])
1860 return 1; /* no delayed ack */
1861 if (WARN_ONCE(!azx_dev->period_bytes,
1862 "hda-intel: zero azx_dev->period_bytes"))
1863 return 0; /* this shouldn't happen! */
1864 if (pos % azx_dev->period_bytes > azx_dev->period_bytes / 2)
1865 return 0; /* NG - it's below the period boundary */
1866 return 1; /* OK, it's fine */
1867 }
1868
1869 /*
1870 * The work for pending PCM period updates.
1871 */
1872 static void azx_irq_pending_work(struct work_struct *work)
1873 {
1874 struct azx *chip = container_of(work, struct azx, irq_pending_work);
1875 int i, pending;
1876
1877 if (!chip->irq_pending_warned) {
1878 printk(KERN_WARNING
1879 "hda-intel: IRQ timing workaround is activated "
1880 "for card #%d. Suggest a bigger bdl_pos_adj.\n",
1881 chip->card->number);
1882 chip->irq_pending_warned = 1;
1883 }
1884
1885 for (;;) {
1886 pending = 0;
1887 spin_lock_irq(&chip->reg_lock);
1888 for (i = 0; i < chip->num_streams; i++) {
1889 struct azx_dev *azx_dev = &chip->azx_dev[i];
1890 if (!azx_dev->irq_pending ||
1891 !azx_dev->substream ||
1892 !azx_dev->running)
1893 continue;
1894 if (azx_position_ok(chip, azx_dev)) {
1895 azx_dev->irq_pending = 0;
1896 spin_unlock(&chip->reg_lock);
1897 snd_pcm_period_elapsed(azx_dev->substream);
1898 spin_lock(&chip->reg_lock);
1899 } else
1900 pending++;
1901 }
1902 spin_unlock_irq(&chip->reg_lock);
1903 if (!pending)
1904 return;
1905 cond_resched();
1906 }
1907 }
1908
1909 /* clear irq_pending flags and assure no on-going workq */
1910 static void azx_clear_irq_pending(struct azx *chip)
1911 {
1912 int i;
1913
1914 spin_lock_irq(&chip->reg_lock);
1915 for (i = 0; i < chip->num_streams; i++)
1916 chip->azx_dev[i].irq_pending = 0;
1917 spin_unlock_irq(&chip->reg_lock);
1918 }
1919
1920 static struct snd_pcm_ops azx_pcm_ops = {
1921 .open = azx_pcm_open,
1922 .close = azx_pcm_close,
1923 .ioctl = snd_pcm_lib_ioctl,
1924 .hw_params = azx_pcm_hw_params,
1925 .hw_free = azx_pcm_hw_free,
1926 .prepare = azx_pcm_prepare,
1927 .trigger = azx_pcm_trigger,
1928 .pointer = azx_pcm_pointer,
1929 .page = snd_pcm_sgbuf_ops_page,
1930 };
1931
1932 static void azx_pcm_free(struct snd_pcm *pcm)
1933 {
1934 struct azx_pcm *apcm = pcm->private_data;
1935 if (apcm) {
1936 apcm->chip->pcm[pcm->device] = NULL;
1937 kfree(apcm);
1938 }
1939 }
1940
1941 static int
1942 azx_attach_pcm_stream(struct hda_bus *bus, struct hda_codec *codec,
1943 struct hda_pcm *cpcm)
1944 {
1945 struct azx *chip = bus->private_data;
1946 struct snd_pcm *pcm;
1947 struct azx_pcm *apcm;
1948 int pcm_dev = cpcm->device;
1949 int s, err;
1950
1951 if (pcm_dev >= AZX_MAX_PCMS) {
1952 snd_printk(KERN_ERR SFX "Invalid PCM device number %d\n",
1953 pcm_dev);
1954 return -EINVAL;
1955 }
1956 if (chip->pcm[pcm_dev]) {
1957 snd_printk(KERN_ERR SFX "PCM %d already exists\n", pcm_dev);
1958 return -EBUSY;
1959 }
1960 err = snd_pcm_new(chip->card, cpcm->name, pcm_dev,
1961 cpcm->stream[SNDRV_PCM_STREAM_PLAYBACK].substreams,
1962 cpcm->stream[SNDRV_PCM_STREAM_CAPTURE].substreams,
1963 &pcm);
1964 if (err < 0)
1965 return err;
1966 strlcpy(pcm->name, cpcm->name, sizeof(pcm->name));
1967 apcm = kzalloc(sizeof(*apcm), GFP_KERNEL);
1968 if (apcm == NULL)
1969 return -ENOMEM;
1970 apcm->chip = chip;
1971 apcm->codec = codec;
1972 pcm->private_data = apcm;
1973 pcm->private_free = azx_pcm_free;
1974 if (cpcm->pcm_type == HDA_PCM_TYPE_MODEM)
1975 pcm->dev_class = SNDRV_PCM_CLASS_MODEM;
1976 chip->pcm[pcm_dev] = pcm;
1977 cpcm->pcm = pcm;
1978 for (s = 0; s < 2; s++) {
1979 apcm->hinfo[s] = &cpcm->stream[s];
1980 if (cpcm->stream[s].substreams)
1981 snd_pcm_set_ops(pcm, s, &azx_pcm_ops);
1982 }
1983 /* buffer pre-allocation */
1984 snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
1985 snd_dma_pci_data(chip->pci),
1986 1024 * 64, 32 * 1024 * 1024);
1987 return 0;
1988 }
1989
1990 /*
1991 * mixer creation - all stuff is implemented in hda module
1992 */
1993 static int __devinit azx_mixer_create(struct azx *chip)
1994 {
1995 return snd_hda_build_controls(chip->bus);
1996 }
1997
1998
1999 /*
2000 * initialize SD streams
2001 */
2002 static int __devinit azx_init_stream(struct azx *chip)
2003 {
2004 int i;
2005
2006 /* initialize each stream (aka device)
2007 * assign the starting bdl address to each stream (device)
2008 * and initialize
2009 */
2010 for (i = 0; i < chip->num_streams; i++) {
2011 struct azx_dev *azx_dev = &chip->azx_dev[i];
2012 azx_dev->posbuf = (u32 __iomem *)(chip->posbuf.area + i * 8);
2013 /* offset: SDI0=0x80, SDI1=0xa0, ... SDO3=0x160 */
2014 azx_dev->sd_addr = chip->remap_addr + (0x20 * i + 0x80);
2015 /* int mask: SDI0=0x01, SDI1=0x02, ... SDO3=0x80 */
2016 azx_dev->sd_int_sta_mask = 1 << i;
2017 /* stream tag: must be non-zero and unique */
2018 azx_dev->index = i;
2019 azx_dev->stream_tag = i + 1;
2020 }
2021
2022 return 0;
2023 }
2024
2025 static int azx_acquire_irq(struct azx *chip, int do_disconnect)
2026 {
2027 if (request_irq(chip->pci->irq, azx_interrupt,
2028 chip->msi ? 0 : IRQF_SHARED,
2029 "HDA Intel", chip)) {
2030 printk(KERN_ERR "hda-intel: unable to grab IRQ %d, "
2031 "disabling device\n", chip->pci->irq);
2032 if (do_disconnect)
2033 snd_card_disconnect(chip->card);
2034 return -1;
2035 }
2036 chip->irq = chip->pci->irq;
2037 pci_intx(chip->pci, !chip->msi);
2038 return 0;
2039 }
2040
2041
2042 static void azx_stop_chip(struct azx *chip)
2043 {
2044 if (!chip->initialized)
2045 return;
2046
2047 /* disable interrupts */
2048 azx_int_disable(chip);
2049 azx_int_clear(chip);
2050
2051 /* disable CORB/RIRB */
2052 azx_free_cmd_io(chip);
2053
2054 /* disable position buffer */
2055 azx_writel(chip, DPLBASE, 0);
2056 azx_writel(chip, DPUBASE, 0);
2057
2058 chip->initialized = 0;
2059 }
2060
2061 #ifdef CONFIG_SND_HDA_POWER_SAVE
2062 /* power-up/down the controller */
2063 static void azx_power_notify(struct hda_bus *bus)
2064 {
2065 struct azx *chip = bus->private_data;
2066 struct hda_codec *c;
2067 int power_on = 0;
2068
2069 list_for_each_entry(c, &bus->codec_list, list) {
2070 if (c->power_on) {
2071 power_on = 1;
2072 break;
2073 }
2074 }
2075 if (power_on)
2076 azx_init_chip(chip);
2077 else if (chip->running && power_save_controller)
2078 azx_stop_chip(chip);
2079 }
2080 #endif /* CONFIG_SND_HDA_POWER_SAVE */
2081
2082 #ifdef CONFIG_PM
2083 /*
2084 * power management
2085 */
2086
2087 static int snd_hda_codecs_inuse(struct hda_bus *bus)
2088 {
2089 struct hda_codec *codec;
2090
2091 list_for_each_entry(codec, &bus->codec_list, list) {
2092 if (snd_hda_codec_needs_resume(codec))
2093 return 1;
2094 }
2095 return 0;
2096 }
2097
2098 static int azx_suspend(struct pci_dev *pci, pm_message_t state)
2099 {
2100 struct snd_card *card = pci_get_drvdata(pci);
2101 struct azx *chip = card->private_data;
2102 int i;
2103
2104 snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
2105 azx_clear_irq_pending(chip);
2106 for (i = 0; i < AZX_MAX_PCMS; i++)
2107 snd_pcm_suspend_all(chip->pcm[i]);
2108 if (chip->initialized)
2109 snd_hda_suspend(chip->bus);
2110 azx_stop_chip(chip);
2111 if (chip->irq >= 0) {
2112 free_irq(chip->irq, chip);
2113 chip->irq = -1;
2114 }
2115 if (chip->msi)
2116 pci_disable_msi(chip->pci);
2117 pci_disable_device(pci);
2118 pci_save_state(pci);
2119 pci_set_power_state(pci, pci_choose_state(pci, state));
2120 return 0;
2121 }
2122
2123 static int azx_resume(struct pci_dev *pci)
2124 {
2125 struct snd_card *card = pci_get_drvdata(pci);
2126 struct azx *chip = card->private_data;
2127
2128 pci_set_power_state(pci, PCI_D0);
2129 pci_restore_state(pci);
2130 if (pci_enable_device(pci) < 0) {
2131 printk(KERN_ERR "hda-intel: pci_enable_device failed, "
2132 "disabling device\n");
2133 snd_card_disconnect(card);
2134 return -EIO;
2135 }
2136 pci_set_master(pci);
2137 if (chip->msi)
2138 if (pci_enable_msi(pci) < 0)
2139 chip->msi = 0;
2140 if (azx_acquire_irq(chip, 1) < 0)
2141 return -EIO;
2142 azx_init_pci(chip);
2143
2144 if (snd_hda_codecs_inuse(chip->bus))
2145 azx_init_chip(chip);
2146
2147 snd_hda_resume(chip->bus);
2148 snd_power_change_state(card, SNDRV_CTL_POWER_D0);
2149 return 0;
2150 }
2151 #endif /* CONFIG_PM */
2152
2153
2154 /*
2155 * reboot notifier for hang-up problem at power-down
2156 */
2157 static int azx_halt(struct notifier_block *nb, unsigned long event, void *buf)
2158 {
2159 struct azx *chip = container_of(nb, struct azx, reboot_notifier);
2160 azx_stop_chip(chip);
2161 return NOTIFY_OK;
2162 }
2163
2164 static void azx_notifier_register(struct azx *chip)
2165 {
2166 chip->reboot_notifier.notifier_call = azx_halt;
2167 register_reboot_notifier(&chip->reboot_notifier);
2168 }
2169
2170 static void azx_notifier_unregister(struct azx *chip)
2171 {
2172 if (chip->reboot_notifier.notifier_call)
2173 unregister_reboot_notifier(&chip->reboot_notifier);
2174 }
2175
2176 /*
2177 * destructor
2178 */
2179 static int azx_free(struct azx *chip)
2180 {
2181 int i;
2182
2183 azx_notifier_unregister(chip);
2184
2185 if (chip->initialized) {
2186 azx_clear_irq_pending(chip);
2187 for (i = 0; i < chip->num_streams; i++)
2188 azx_stream_stop(chip, &chip->azx_dev[i]);
2189 azx_stop_chip(chip);
2190 }
2191
2192 if (chip->irq >= 0)
2193 free_irq(chip->irq, (void*)chip);
2194 if (chip->msi)
2195 pci_disable_msi(chip->pci);
2196 if (chip->remap_addr)
2197 iounmap(chip->remap_addr);
2198
2199 if (chip->azx_dev) {
2200 for (i = 0; i < chip->num_streams; i++)
2201 if (chip->azx_dev[i].bdl.area)
2202 snd_dma_free_pages(&chip->azx_dev[i].bdl);
2203 }
2204 if (chip->rb.area)
2205 snd_dma_free_pages(&chip->rb);
2206 if (chip->posbuf.area)
2207 snd_dma_free_pages(&chip->posbuf);
2208 pci_release_regions(chip->pci);
2209 pci_disable_device(chip->pci);
2210 kfree(chip->azx_dev);
2211 kfree(chip);
2212
2213 return 0;
2214 }
2215
2216 static int azx_dev_free(struct snd_device *device)
2217 {
2218 return azx_free(device->device_data);
2219 }
2220
2221 /*
2222 * white/black-listing for position_fix
2223 */
2224 static struct snd_pci_quirk position_fix_list[] __devinitdata = {
2225 SND_PCI_QUIRK(0x1028, 0x01cc, "Dell D820", POS_FIX_LPIB),
2226 SND_PCI_QUIRK(0x1028, 0x01de, "Dell Precision 390", POS_FIX_LPIB),
2227 SND_PCI_QUIRK(0x103c, 0x306d, "HP dv3", POS_FIX_LPIB),
2228 SND_PCI_QUIRK(0x1106, 0x3288, "ASUS M2V-MX SE", POS_FIX_LPIB),
2229 SND_PCI_QUIRK(0x1043, 0x813d, "ASUS P5AD2", POS_FIX_LPIB),
2230 SND_PCI_QUIRK(0x1028, 0x01f6, "Dell Latitude 131L", POS_FIX_LPIB),
2231 SND_PCI_QUIRK(0x1462, 0x1002, "MSI Wind U115", POS_FIX_LPIB),
2232 SND_PCI_QUIRK(0x1565, 0x820f, "Biostar Microtech", POS_FIX_LPIB),
2233 SND_PCI_QUIRK(0x8086, 0xd601, "eMachines T5212", POS_FIX_LPIB),
2234 {}
2235 };
2236
2237 static int __devinit check_position_fix(struct azx *chip, int fix)
2238 {
2239 const struct snd_pci_quirk *q;
2240
2241 switch (fix) {
2242 case POS_FIX_LPIB:
2243 case POS_FIX_POSBUF:
2244 return fix;
2245 }
2246
2247 /* Check VIA/ATI HD Audio Controller exist */
2248 switch (chip->driver_type) {
2249 case AZX_DRIVER_VIA:
2250 case AZX_DRIVER_ATI:
2251 chip->via_dmapos_patch = 1;
2252 /* Use link position directly, avoid any transfer problem. */
2253 return POS_FIX_LPIB;
2254 }
2255 chip->via_dmapos_patch = 0;
2256
2257 q = snd_pci_quirk_lookup(chip->pci, position_fix_list);
2258 if (q) {
2259 printk(KERN_INFO
2260 "hda_intel: position_fix set to %d "
2261 "for device %04x:%04x\n",
2262 q->value, q->subvendor, q->subdevice);
2263 return q->value;
2264 }
2265 return POS_FIX_AUTO;
2266 }
2267
2268 /*
2269 * black-lists for probe_mask
2270 */
2271 static struct snd_pci_quirk probe_mask_list[] __devinitdata = {
2272 /* Thinkpad often breaks the controller communication when accessing
2273 * to the non-working (or non-existing) modem codec slot.
2274 */
2275 SND_PCI_QUIRK(0x1014, 0x05b7, "Thinkpad Z60", 0x01),
2276 SND_PCI_QUIRK(0x17aa, 0x2010, "Thinkpad X/T/R60", 0x01),
2277 SND_PCI_QUIRK(0x17aa, 0x20ac, "Thinkpad X/T/R61", 0x01),
2278 /* broken BIOS */
2279 SND_PCI_QUIRK(0x1028, 0x20ac, "Dell Studio Desktop", 0x01),
2280 /* including bogus ALC268 in slot#2 that conflicts with ALC888 */
2281 SND_PCI_QUIRK(0x17c0, 0x4085, "Medion MD96630", 0x01),
2282 /* forced codec slots */
2283 SND_PCI_QUIRK(0x1043, 0x1262, "ASUS W5Fm", 0x103),
2284 SND_PCI_QUIRK(0x1046, 0x1262, "ASUS W5F", 0x103),
2285 {}
2286 };
2287
2288 #define AZX_FORCE_CODEC_MASK 0x100
2289
2290 static void __devinit check_probe_mask(struct azx *chip, int dev)
2291 {
2292 const struct snd_pci_quirk *q;
2293
2294 chip->codec_probe_mask = probe_mask[dev];
2295 if (chip->codec_probe_mask == -1) {
2296 q = snd_pci_quirk_lookup(chip->pci, probe_mask_list);
2297 if (q) {
2298 printk(KERN_INFO
2299 "hda_intel: probe_mask set to 0x%x "
2300 "for device %04x:%04x\n",
2301 q->value, q->subvendor, q->subdevice);
2302 chip->codec_probe_mask = q->value;
2303 }
2304 }
2305
2306 /* check forced option */
2307 if (chip->codec_probe_mask != -1 &&
2308 (chip->codec_probe_mask & AZX_FORCE_CODEC_MASK)) {
2309 chip->codec_mask = chip->codec_probe_mask & 0xff;
2310 printk(KERN_INFO "hda_intel: codec_mask forced to 0x%x\n",
2311 chip->codec_mask);
2312 }
2313 }
2314
2315 /*
2316 * white-list for enable_msi
2317 */
2318 static struct snd_pci_quirk msi_white_list[] __devinitdata = {
2319 SND_PCI_QUIRK(0x103c, 0x30f7, "HP Pavilion dv4t-1300", 1),
2320 SND_PCI_QUIRK(0x103c, 0x3607, "HP Compa CQ40", 1),
2321 SND_PCI_QUIRK(0x107b, 0x0380, "Gateway M-6866", 1),
2322 {}
2323 };
2324
2325 static void __devinit check_msi(struct azx *chip)
2326 {
2327 const struct snd_pci_quirk *q;
2328
2329 chip->msi = enable_msi;
2330 if (chip->msi)
2331 return;
2332 q = snd_pci_quirk_lookup(chip->pci, msi_white_list);
2333 if (q) {
2334 printk(KERN_INFO
2335 "hda_intel: msi for device %04x:%04x set to %d\n",
2336 q->subvendor, q->subdevice, q->value);
2337 chip->msi = q->value;
2338 }
2339 }
2340
2341
2342 /*
2343 * constructor
2344 */
2345 static int __devinit azx_create(struct snd_card *card, struct pci_dev *pci,
2346 int dev, int driver_type,
2347 struct azx **rchip)
2348 {
2349 struct azx *chip;
2350 int i, err;
2351 unsigned short gcap;
2352 static struct snd_device_ops ops = {
2353 .dev_free = azx_dev_free,
2354 };
2355
2356 *rchip = NULL;
2357
2358 err = pci_enable_device(pci);
2359 if (err < 0)
2360 return err;
2361
2362 chip = kzalloc(sizeof(*chip), GFP_KERNEL);
2363 if (!chip) {
2364 snd_printk(KERN_ERR SFX "cannot allocate chip\n");
2365 pci_disable_device(pci);
2366 return -ENOMEM;
2367 }
2368
2369 spin_lock_init(&chip->reg_lock);
2370 mutex_init(&chip->open_mutex);
2371 chip->card = card;
2372 chip->pci = pci;
2373 chip->irq = -1;
2374 chip->driver_type = driver_type;
2375 check_msi(chip);
2376 chip->dev_index = dev;
2377 INIT_WORK(&chip->irq_pending_work, azx_irq_pending_work);
2378
2379 chip->position_fix = check_position_fix(chip, position_fix[dev]);
2380 check_probe_mask(chip, dev);
2381
2382 chip->single_cmd = single_cmd;
2383
2384 if (bdl_pos_adj[dev] < 0) {
2385 switch (chip->driver_type) {
2386 case AZX_DRIVER_ICH:
2387 bdl_pos_adj[dev] = 1;
2388 break;
2389 default:
2390 bdl_pos_adj[dev] = 32;
2391 break;
2392 }
2393 }
2394
2395 #if BITS_PER_LONG != 64
2396 /* Fix up base address on ULI M5461 */
2397 if (chip->driver_type == AZX_DRIVER_ULI) {
2398 u16 tmp3;
2399 pci_read_config_word(pci, 0x40, &tmp3);
2400 pci_write_config_word(pci, 0x40, tmp3 | 0x10);
2401 pci_write_config_dword(pci, PCI_BASE_ADDRESS_1, 0);
2402 }
2403 #endif
2404
2405 err = pci_request_regions(pci, "ICH HD audio");
2406 if (err < 0) {
2407 kfree(chip);
2408 pci_disable_device(pci);
2409 return err;
2410 }
2411
2412 chip->addr = pci_resource_start(pci, 0);
2413 chip->remap_addr = pci_ioremap_bar(pci, 0);
2414 if (chip->remap_addr == NULL) {
2415 snd_printk(KERN_ERR SFX "ioremap error\n");
2416 err = -ENXIO;
2417 goto errout;
2418 }
2419
2420 if (chip->msi)
2421 if (pci_enable_msi(pci) < 0)
2422 chip->msi = 0;
2423
2424 if (azx_acquire_irq(chip, 0) < 0) {
2425 err = -EBUSY;
2426 goto errout;
2427 }
2428
2429 pci_set_master(pci);
2430 synchronize_irq(chip->irq);
2431
2432 gcap = azx_readw(chip, GCAP);
2433 snd_printdd(SFX "chipset global capabilities = 0x%x\n", gcap);
2434
2435 /* disable SB600 64bit support for safety */
2436 if ((chip->driver_type == AZX_DRIVER_ATI) ||
2437 (chip->driver_type == AZX_DRIVER_ATIHDMI)) {
2438 struct pci_dev *p_smbus;
2439 p_smbus = pci_get_device(PCI_VENDOR_ID_ATI,
2440 PCI_DEVICE_ID_ATI_SBX00_SMBUS,
2441 NULL);
2442 if (p_smbus) {
2443 if (p_smbus->revision < 0x30)
2444 gcap &= ~ICH6_GCAP_64OK;
2445 pci_dev_put(p_smbus);
2446 }
2447 }
2448
2449 /* disable 64bit DMA address for Teradici */
2450 /* it does not work with device 6549:1200 subsys e4a2:040b */
2451 if (chip->driver_type == AZX_DRIVER_TERA)
2452 gcap &= ~ICH6_GCAP_64OK;
2453
2454 /* allow 64bit DMA address if supported by H/W */
2455 if ((gcap & ICH6_GCAP_64OK) && !pci_set_dma_mask(pci, DMA_BIT_MASK(64)))
2456 pci_set_consistent_dma_mask(pci, DMA_BIT_MASK(64));
2457 else {
2458 pci_set_dma_mask(pci, DMA_BIT_MASK(32));
2459 pci_set_consistent_dma_mask(pci, DMA_BIT_MASK(32));
2460 }
2461
2462 /* read number of streams from GCAP register instead of using
2463 * hardcoded value
2464 */
2465 chip->capture_streams = (gcap >> 8) & 0x0f;
2466 chip->playback_streams = (gcap >> 12) & 0x0f;
2467 if (!chip->playback_streams && !chip->capture_streams) {
2468 /* gcap didn't give any info, switching to old method */
2469
2470 switch (chip->driver_type) {
2471 case AZX_DRIVER_ULI:
2472 chip->playback_streams = ULI_NUM_PLAYBACK;
2473 chip->capture_streams = ULI_NUM_CAPTURE;
2474 break;
2475 case AZX_DRIVER_ATIHDMI:
2476 chip->playback_streams = ATIHDMI_NUM_PLAYBACK;
2477 chip->capture_streams = ATIHDMI_NUM_CAPTURE;
2478 break;
2479 case AZX_DRIVER_GENERIC:
2480 default:
2481 chip->playback_streams = ICH6_NUM_PLAYBACK;
2482 chip->capture_streams = ICH6_NUM_CAPTURE;
2483 break;
2484 }
2485 }
2486 chip->capture_index_offset = 0;
2487 chip->playback_index_offset = chip->capture_streams;
2488 chip->num_streams = chip->playback_streams + chip->capture_streams;
2489 chip->azx_dev = kcalloc(chip->num_streams, sizeof(*chip->azx_dev),
2490 GFP_KERNEL);
2491 if (!chip->azx_dev) {
2492 snd_printk(KERN_ERR SFX "cannot malloc azx_dev\n");
2493 goto errout;
2494 }
2495
2496 for (i = 0; i < chip->num_streams; i++) {
2497 /* allocate memory for the BDL for each stream */
2498 err = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV,
2499 snd_dma_pci_data(chip->pci),
2500 BDL_SIZE, &chip->azx_dev[i].bdl);
2501 if (err < 0) {
2502 snd_printk(KERN_ERR SFX "cannot allocate BDL\n");
2503 goto errout;
2504 }
2505 }
2506 /* allocate memory for the position buffer */
2507 err = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV,
2508 snd_dma_pci_data(chip->pci),
2509 chip->num_streams * 8, &chip->posbuf);
2510 if (err < 0) {
2511 snd_printk(KERN_ERR SFX "cannot allocate posbuf\n");
2512 goto errout;
2513 }
2514 /* allocate CORB/RIRB */
2515 err = azx_alloc_cmd_io(chip);
2516 if (err < 0)
2517 goto errout;
2518
2519 /* initialize streams */
2520 azx_init_stream(chip);
2521
2522 /* initialize chip */
2523 azx_init_pci(chip);
2524 azx_init_chip(chip);
2525
2526 /* codec detection */
2527 if (!chip->codec_mask) {
2528 snd_printk(KERN_ERR SFX "no codecs found!\n");
2529 err = -ENODEV;
2530 goto errout;
2531 }
2532
2533 err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
2534 if (err <0) {
2535 snd_printk(KERN_ERR SFX "Error creating device [card]!\n");
2536 goto errout;
2537 }
2538
2539 strcpy(card->driver, "HDA-Intel");
2540 strlcpy(card->shortname, driver_short_names[chip->driver_type],
2541 sizeof(card->shortname));
2542 snprintf(card->longname, sizeof(card->longname),
2543 "%s at 0x%lx irq %i",
2544 card->shortname, chip->addr, chip->irq);
2545
2546 *rchip = chip;
2547 return 0;
2548
2549 errout:
2550 azx_free(chip);
2551 return err;
2552 }
2553
2554 static void power_down_all_codecs(struct azx *chip)
2555 {
2556 #ifdef CONFIG_SND_HDA_POWER_SAVE
2557 /* The codecs were powered up in snd_hda_codec_new().
2558 * Now all initialization done, so turn them down if possible
2559 */
2560 struct hda_codec *codec;
2561 list_for_each_entry(codec, &chip->bus->codec_list, list) {
2562 snd_hda_power_down(codec);
2563 }
2564 #endif
2565 }
2566
2567 static int __devinit azx_probe(struct pci_dev *pci,
2568 const struct pci_device_id *pci_id)
2569 {
2570 static int dev;
2571 struct snd_card *card;
2572 struct azx *chip;
2573 int err;
2574
2575 if (dev >= SNDRV_CARDS)
2576 return -ENODEV;
2577 if (!enable[dev]) {
2578 dev++;
2579 return -ENOENT;
2580 }
2581
2582 err = snd_card_create(index[dev], id[dev], THIS_MODULE, 0, &card);
2583 if (err < 0) {
2584 snd_printk(KERN_ERR SFX "Error creating card!\n");
2585 return err;
2586 }
2587
2588 /* set this here since it's referred in snd_hda_load_patch() */
2589 snd_card_set_dev(card, &pci->dev);
2590
2591 err = azx_create(card, pci, dev, pci_id->driver_data, &chip);
2592 if (err < 0)
2593 goto out_free;
2594 card->private_data = chip;
2595
2596 /* create codec instances */
2597 err = azx_codec_create(chip, model[dev]);
2598 if (err < 0)
2599 goto out_free;
2600 #ifdef CONFIG_SND_HDA_PATCH_LOADER
2601 if (patch[dev]) {
2602 snd_printk(KERN_ERR SFX "Applying patch firmware '%s'\n",
2603 patch[dev]);
2604 err = snd_hda_load_patch(chip->bus, patch[dev]);
2605 if (err < 0)
2606 goto out_free;
2607 }
2608 #endif
2609 if (!probe_only[dev]) {
2610 err = azx_codec_configure(chip);
2611 if (err < 0)
2612 goto out_free;
2613 }
2614
2615 /* create PCM streams */
2616 err = snd_hda_build_pcms(chip->bus);
2617 if (err < 0)
2618 goto out_free;
2619
2620 /* create mixer controls */
2621 err = azx_mixer_create(chip);
2622 if (err < 0)
2623 goto out_free;
2624
2625 err = snd_card_register(card);
2626 if (err < 0)
2627 goto out_free;
2628
2629 pci_set_drvdata(pci, card);
2630 chip->running = 1;
2631 power_down_all_codecs(chip);
2632 azx_notifier_register(chip);
2633
2634 dev++;
2635 return err;
2636 out_free:
2637 snd_card_free(card);
2638 return err;
2639 }
2640
2641 static void __devexit azx_remove(struct pci_dev *pci)
2642 {
2643 snd_card_free(pci_get_drvdata(pci));
2644 pci_set_drvdata(pci, NULL);
2645 }
2646
2647 /* PCI IDs */
2648 static struct pci_device_id azx_ids[] = {
2649 /* ICH 6..10 */
2650 { PCI_DEVICE(0x8086, 0x2668), .driver_data = AZX_DRIVER_ICH },
2651 { PCI_DEVICE(0x8086, 0x27d8), .driver_data = AZX_DRIVER_ICH },
2652 { PCI_DEVICE(0x8086, 0x269a), .driver_data = AZX_DRIVER_ICH },
2653 { PCI_DEVICE(0x8086, 0x284b), .driver_data = AZX_DRIVER_ICH },
2654 { PCI_DEVICE(0x8086, 0x2911), .driver_data = AZX_DRIVER_ICH },
2655 { PCI_DEVICE(0x8086, 0x293e), .driver_data = AZX_DRIVER_ICH },
2656 { PCI_DEVICE(0x8086, 0x293f), .driver_data = AZX_DRIVER_ICH },
2657 { PCI_DEVICE(0x8086, 0x3a3e), .driver_data = AZX_DRIVER_ICH },
2658 { PCI_DEVICE(0x8086, 0x3a6e), .driver_data = AZX_DRIVER_ICH },
2659 /* PCH */
2660 { PCI_DEVICE(0x8086, 0x3b56), .driver_data = AZX_DRIVER_ICH },
2661 /* SCH */
2662 { PCI_DEVICE(0x8086, 0x811b), .driver_data = AZX_DRIVER_SCH },
2663 /* ATI SB 450/600 */
2664 { PCI_DEVICE(0x1002, 0x437b), .driver_data = AZX_DRIVER_ATI },
2665 { PCI_DEVICE(0x1002, 0x4383), .driver_data = AZX_DRIVER_ATI },
2666 /* ATI HDMI */
2667 { PCI_DEVICE(0x1002, 0x793b), .driver_data = AZX_DRIVER_ATIHDMI },
2668 { PCI_DEVICE(0x1002, 0x7919), .driver_data = AZX_DRIVER_ATIHDMI },
2669 { PCI_DEVICE(0x1002, 0x960f), .driver_data = AZX_DRIVER_ATIHDMI },
2670 { PCI_DEVICE(0x1002, 0x970f), .driver_data = AZX_DRIVER_ATIHDMI },
2671 { PCI_DEVICE(0x1002, 0xaa00), .driver_data = AZX_DRIVER_ATIHDMI },
2672 { PCI_DEVICE(0x1002, 0xaa08), .driver_data = AZX_DRIVER_ATIHDMI },
2673 { PCI_DEVICE(0x1002, 0xaa10), .driver_data = AZX_DRIVER_ATIHDMI },
2674 { PCI_DEVICE(0x1002, 0xaa18), .driver_data = AZX_DRIVER_ATIHDMI },
2675 { PCI_DEVICE(0x1002, 0xaa20), .driver_data = AZX_DRIVER_ATIHDMI },
2676 { PCI_DEVICE(0x1002, 0xaa28), .driver_data = AZX_DRIVER_ATIHDMI },
2677 { PCI_DEVICE(0x1002, 0xaa30), .driver_data = AZX_DRIVER_ATIHDMI },
2678 { PCI_DEVICE(0x1002, 0xaa38), .driver_data = AZX_DRIVER_ATIHDMI },
2679 { PCI_DEVICE(0x1002, 0xaa40), .driver_data = AZX_DRIVER_ATIHDMI },
2680 { PCI_DEVICE(0x1002, 0xaa48), .driver_data = AZX_DRIVER_ATIHDMI },
2681 /* VIA VT8251/VT8237A */
2682 { PCI_DEVICE(0x1106, 0x3288), .driver_data = AZX_DRIVER_VIA },
2683 /* SIS966 */
2684 { PCI_DEVICE(0x1039, 0x7502), .driver_data = AZX_DRIVER_SIS },
2685 /* ULI M5461 */
2686 { PCI_DEVICE(0x10b9, 0x5461), .driver_data = AZX_DRIVER_ULI },
2687 /* NVIDIA MCP */
2688 { PCI_DEVICE(0x10de, 0x026c), .driver_data = AZX_DRIVER_NVIDIA },
2689 { PCI_DEVICE(0x10de, 0x0371), .driver_data = AZX_DRIVER_NVIDIA },
2690 { PCI_DEVICE(0x10de, 0x03e4), .driver_data = AZX_DRIVER_NVIDIA },
2691 { PCI_DEVICE(0x10de, 0x03f0), .driver_data = AZX_DRIVER_NVIDIA },
2692 { PCI_DEVICE(0x10de, 0x044a), .driver_data = AZX_DRIVER_NVIDIA },
2693 { PCI_DEVICE(0x10de, 0x044b), .driver_data = AZX_DRIVER_NVIDIA },
2694 { PCI_DEVICE(0x10de, 0x055c), .driver_data = AZX_DRIVER_NVIDIA },
2695 { PCI_DEVICE(0x10de, 0x055d), .driver_data = AZX_DRIVER_NVIDIA },
2696 { PCI_DEVICE(0x10de, 0x0590), .driver_data = AZX_DRIVER_NVIDIA },
2697 { PCI_DEVICE(0x10de, 0x0774), .driver_data = AZX_DRIVER_NVIDIA },
2698 { PCI_DEVICE(0x10de, 0x0775), .driver_data = AZX_DRIVER_NVIDIA },
2699 { PCI_DEVICE(0x10de, 0x0776), .driver_data = AZX_DRIVER_NVIDIA },
2700 { PCI_DEVICE(0x10de, 0x0777), .driver_data = AZX_DRIVER_NVIDIA },
2701 { PCI_DEVICE(0x10de, 0x07fc), .driver_data = AZX_DRIVER_NVIDIA },
2702 { PCI_DEVICE(0x10de, 0x07fd), .driver_data = AZX_DRIVER_NVIDIA },
2703 { PCI_DEVICE(0x10de, 0x0ac0), .driver_data = AZX_DRIVER_NVIDIA },
2704 { PCI_DEVICE(0x10de, 0x0ac1), .driver_data = AZX_DRIVER_NVIDIA },
2705 { PCI_DEVICE(0x10de, 0x0ac2), .driver_data = AZX_DRIVER_NVIDIA },
2706 { PCI_DEVICE(0x10de, 0x0ac3), .driver_data = AZX_DRIVER_NVIDIA },
2707 { PCI_DEVICE(0x10de, 0x0be2), .driver_data = AZX_DRIVER_NVIDIA },
2708 { PCI_DEVICE(0x10de, 0x0be3), .driver_data = AZX_DRIVER_NVIDIA },
2709 { PCI_DEVICE(0x10de, 0x0be4), .driver_data = AZX_DRIVER_NVIDIA },
2710 { PCI_DEVICE(0x10de, 0x0d94), .driver_data = AZX_DRIVER_NVIDIA },
2711 { PCI_DEVICE(0x10de, 0x0d95), .driver_data = AZX_DRIVER_NVIDIA },
2712 { PCI_DEVICE(0x10de, 0x0d96), .driver_data = AZX_DRIVER_NVIDIA },
2713 { PCI_DEVICE(0x10de, 0x0d97), .driver_data = AZX_DRIVER_NVIDIA },
2714 /* Teradici */
2715 { PCI_DEVICE(0x6549, 0x1200), .driver_data = AZX_DRIVER_TERA },
2716 /* Creative X-Fi (CA0110-IBG) */
2717 #if !defined(CONFIG_SND_CTXFI) && !defined(CONFIG_SND_CTXFI_MODULE)
2718 /* the following entry conflicts with snd-ctxfi driver,
2719 * as ctxfi driver mutates from HD-audio to native mode with
2720 * a special command sequence.
2721 */
2722 { PCI_DEVICE(PCI_VENDOR_ID_CREATIVE, PCI_ANY_ID),
2723 .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2724 .class_mask = 0xffffff,
2725 .driver_data = AZX_DRIVER_GENERIC },
2726 #else
2727 /* this entry seems still valid -- i.e. without emu20kx chip */
2728 { PCI_DEVICE(0x1102, 0x0009), .driver_data = AZX_DRIVER_GENERIC },
2729 #endif
2730 /* AMD/ATI Generic, PCI class code and Vendor ID for HD Audio */
2731 { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_ANY_ID),
2732 .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2733 .class_mask = 0xffffff,
2734 .driver_data = AZX_DRIVER_GENERIC },
2735 { PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_ANY_ID),
2736 .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2737 .class_mask = 0xffffff,
2738 .driver_data = AZX_DRIVER_GENERIC },
2739 { 0, }
2740 };
2741 MODULE_DEVICE_TABLE(pci, azx_ids);
2742
2743 /* pci_driver definition */
2744 static struct pci_driver driver = {
2745 .name = "HDA Intel",
2746 .id_table = azx_ids,
2747 .probe = azx_probe,
2748 .remove = __devexit_p(azx_remove),
2749 #ifdef CONFIG_PM
2750 .suspend = azx_suspend,
2751 .resume = azx_resume,
2752 #endif
2753 };
2754
2755 static int __init alsa_card_azx_init(void)
2756 {
2757 return pci_register_driver(&driver);
2758 }
2759
2760 static void __exit alsa_card_azx_exit(void)
2761 {
2762 pci_unregister_driver(&driver);
2763 }
2764
2765 module_init(alsa_card_azx_init)
2766 module_exit(alsa_card_azx_exit)
Support for the Chinese Samsung S3C2440 based development boards