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Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6
[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 <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 = -1;
64 #ifdef CONFIG_SND_HDA_PATCH_LOADER
65 static char *patch[SNDRV_CARDS];
66 #endif
67 #ifdef CONFIG_SND_HDA_INPUT_BEEP
68 static int beep_mode[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS-1)] =
69 CONFIG_SND_HDA_INPUT_BEEP_MODE};
70 #endif
71
72 module_param_array(index, int, NULL, 0444);
73 MODULE_PARM_DESC(index, "Index value for Intel HD audio interface.");
74 module_param_array(id, charp, NULL, 0444);
75 MODULE_PARM_DESC(id, "ID string for Intel HD audio interface.");
76 module_param_array(enable, bool, NULL, 0444);
77 MODULE_PARM_DESC(enable, "Enable Intel HD audio interface.");
78 module_param_array(model, charp, NULL, 0444);
79 MODULE_PARM_DESC(model, "Use the given board model.");
80 module_param_array(position_fix, int, NULL, 0444);
81 MODULE_PARM_DESC(position_fix, "Fix DMA pointer "
82 "(0 = auto, 1 = none, 2 = POSBUF).");
83 module_param_array(bdl_pos_adj, int, NULL, 0644);
84 MODULE_PARM_DESC(bdl_pos_adj, "BDL position adjustment offset.");
85 module_param_array(probe_mask, int, NULL, 0444);
86 MODULE_PARM_DESC(probe_mask, "Bitmask to probe codecs (default = -1).");
87 module_param_array(probe_only, bool, NULL, 0444);
88 MODULE_PARM_DESC(probe_only, "Only probing and no codec initialization.");
89 module_param(single_cmd, bool, 0444);
90 MODULE_PARM_DESC(single_cmd, "Use single command to communicate with codecs "
91 "(for debugging only).");
92 module_param(enable_msi, int, 0444);
93 MODULE_PARM_DESC(enable_msi, "Enable Message Signaled Interrupt (MSI)");
94 #ifdef CONFIG_SND_HDA_PATCH_LOADER
95 module_param_array(patch, charp, NULL, 0444);
96 MODULE_PARM_DESC(patch, "Patch file for Intel HD audio interface.");
97 #endif
98 #ifdef CONFIG_SND_HDA_INPUT_BEEP
99 module_param_array(beep_mode, int, NULL, 0444);
100 MODULE_PARM_DESC(beep_mode, "Select HDA Beep registration mode "
101 "(0=off, 1=on, 2=mute switch on/off) (default=1).");
102 #endif
103
104 #ifdef CONFIG_SND_HDA_POWER_SAVE
105 static int power_save = CONFIG_SND_HDA_POWER_SAVE_DEFAULT;
106 module_param(power_save, int, 0644);
107 MODULE_PARM_DESC(power_save, "Automatic power-saving timeout "
108 "(in second, 0 = disable).");
109
110 /* reset the HD-audio controller in power save mode.
111 * this may give more power-saving, but will take longer time to
112 * wake up.
113 */
114 static int power_save_controller = 1;
115 module_param(power_save_controller, bool, 0644);
116 MODULE_PARM_DESC(power_save_controller, "Reset controller in power save mode.");
117 #endif
118
119 MODULE_LICENSE("GPL");
120 MODULE_SUPPORTED_DEVICE("{{Intel, ICH6},"
121 "{Intel, ICH6M},"
122 "{Intel, ICH7},"
123 "{Intel, ESB2},"
124 "{Intel, ICH8},"
125 "{Intel, ICH9},"
126 "{Intel, ICH10},"
127 "{Intel, PCH},"
128 "{Intel, CPT},"
129 "{Intel, SCH},"
130 "{ATI, SB450},"
131 "{ATI, SB600},"
132 "{ATI, RS600},"
133 "{ATI, RS690},"
134 "{ATI, RS780},"
135 "{ATI, R600},"
136 "{ATI, RV630},"
137 "{ATI, RV610},"
138 "{ATI, RV670},"
139 "{ATI, RV635},"
140 "{ATI, RV620},"
141 "{ATI, RV770},"
142 "{VIA, VT8251},"
143 "{VIA, VT8237A},"
144 "{SiS, SIS966},"
145 "{ULI, M5461}}");
146 MODULE_DESCRIPTION("Intel HDA driver");
147
148 #ifdef CONFIG_SND_VERBOSE_PRINTK
149 #define SFX /* nop */
150 #else
151 #define SFX "hda-intel: "
152 #endif
153
154 /*
155 * registers
156 */
157 #define ICH6_REG_GCAP 0x00
158 #define ICH6_GCAP_64OK (1 << 0) /* 64bit address support */
159 #define ICH6_GCAP_NSDO (3 << 1) /* # of serial data out signals */
160 #define ICH6_GCAP_BSS (31 << 3) /* # of bidirectional streams */
161 #define ICH6_GCAP_ISS (15 << 8) /* # of input streams */
162 #define ICH6_GCAP_OSS (15 << 12) /* # of output streams */
163 #define ICH6_REG_VMIN 0x02
164 #define ICH6_REG_VMAJ 0x03
165 #define ICH6_REG_OUTPAY 0x04
166 #define ICH6_REG_INPAY 0x06
167 #define ICH6_REG_GCTL 0x08
168 #define ICH6_GCTL_RESET (1 << 0) /* controller reset */
169 #define ICH6_GCTL_FCNTRL (1 << 1) /* flush control */
170 #define ICH6_GCTL_UNSOL (1 << 8) /* accept unsol. response enable */
171 #define ICH6_REG_WAKEEN 0x0c
172 #define ICH6_REG_STATESTS 0x0e
173 #define ICH6_REG_GSTS 0x10
174 #define ICH6_GSTS_FSTS (1 << 1) /* flush status */
175 #define ICH6_REG_INTCTL 0x20
176 #define ICH6_REG_INTSTS 0x24
177 #define ICH6_REG_WALCLK 0x30
178 #define ICH6_REG_SYNC 0x34
179 #define ICH6_REG_CORBLBASE 0x40
180 #define ICH6_REG_CORBUBASE 0x44
181 #define ICH6_REG_CORBWP 0x48
182 #define ICH6_REG_CORBRP 0x4a
183 #define ICH6_CORBRP_RST (1 << 15) /* read pointer reset */
184 #define ICH6_REG_CORBCTL 0x4c
185 #define ICH6_CORBCTL_RUN (1 << 1) /* enable DMA */
186 #define ICH6_CORBCTL_CMEIE (1 << 0) /* enable memory error irq */
187 #define ICH6_REG_CORBSTS 0x4d
188 #define ICH6_CORBSTS_CMEI (1 << 0) /* memory error indication */
189 #define ICH6_REG_CORBSIZE 0x4e
190
191 #define ICH6_REG_RIRBLBASE 0x50
192 #define ICH6_REG_RIRBUBASE 0x54
193 #define ICH6_REG_RIRBWP 0x58
194 #define ICH6_RIRBWP_RST (1 << 15) /* write pointer reset */
195 #define ICH6_REG_RINTCNT 0x5a
196 #define ICH6_REG_RIRBCTL 0x5c
197 #define ICH6_RBCTL_IRQ_EN (1 << 0) /* enable IRQ */
198 #define ICH6_RBCTL_DMA_EN (1 << 1) /* enable DMA */
199 #define ICH6_RBCTL_OVERRUN_EN (1 << 2) /* enable overrun irq */
200 #define ICH6_REG_RIRBSTS 0x5d
201 #define ICH6_RBSTS_IRQ (1 << 0) /* response irq */
202 #define ICH6_RBSTS_OVERRUN (1 << 2) /* overrun irq */
203 #define ICH6_REG_RIRBSIZE 0x5e
204
205 #define ICH6_REG_IC 0x60
206 #define ICH6_REG_IR 0x64
207 #define ICH6_REG_IRS 0x68
208 #define ICH6_IRS_VALID (1<<1)
209 #define ICH6_IRS_BUSY (1<<0)
210
211 #define ICH6_REG_DPLBASE 0x70
212 #define ICH6_REG_DPUBASE 0x74
213 #define ICH6_DPLBASE_ENABLE 0x1 /* Enable position buffer */
214
215 /* SD offset: SDI0=0x80, SDI1=0xa0, ... SDO3=0x160 */
216 enum { SDI0, SDI1, SDI2, SDI3, SDO0, SDO1, SDO2, SDO3 };
217
218 /* stream register offsets from stream base */
219 #define ICH6_REG_SD_CTL 0x00
220 #define ICH6_REG_SD_STS 0x03
221 #define ICH6_REG_SD_LPIB 0x04
222 #define ICH6_REG_SD_CBL 0x08
223 #define ICH6_REG_SD_LVI 0x0c
224 #define ICH6_REG_SD_FIFOW 0x0e
225 #define ICH6_REG_SD_FIFOSIZE 0x10
226 #define ICH6_REG_SD_FORMAT 0x12
227 #define ICH6_REG_SD_BDLPL 0x18
228 #define ICH6_REG_SD_BDLPU 0x1c
229
230 /* PCI space */
231 #define ICH6_PCIREG_TCSEL 0x44
232
233 /*
234 * other constants
235 */
236
237 /* max number of SDs */
238 /* ICH, ATI and VIA have 4 playback and 4 capture */
239 #define ICH6_NUM_CAPTURE 4
240 #define ICH6_NUM_PLAYBACK 4
241
242 /* ULI has 6 playback and 5 capture */
243 #define ULI_NUM_CAPTURE 5
244 #define ULI_NUM_PLAYBACK 6
245
246 /* ATI HDMI has 1 playback and 0 capture */
247 #define ATIHDMI_NUM_CAPTURE 0
248 #define ATIHDMI_NUM_PLAYBACK 1
249
250 /* TERA has 4 playback and 3 capture */
251 #define TERA_NUM_CAPTURE 3
252 #define TERA_NUM_PLAYBACK 4
253
254 /* this number is statically defined for simplicity */
255 #define MAX_AZX_DEV 16
256
257 /* max number of fragments - we may use more if allocating more pages for BDL */
258 #define BDL_SIZE 4096
259 #define AZX_MAX_BDL_ENTRIES (BDL_SIZE / 16)
260 #define AZX_MAX_FRAG 32
261 /* max buffer size - no h/w limit, you can increase as you like */
262 #define AZX_MAX_BUF_SIZE (1024*1024*1024)
263
264 /* RIRB int mask: overrun[2], response[0] */
265 #define RIRB_INT_RESPONSE 0x01
266 #define RIRB_INT_OVERRUN 0x04
267 #define RIRB_INT_MASK 0x05
268
269 /* STATESTS int mask: S3,SD2,SD1,SD0 */
270 #define AZX_MAX_CODECS 8
271 #define AZX_DEFAULT_CODECS 4
272 #define STATESTS_INT_MASK ((1 << AZX_MAX_CODECS) - 1)
273
274 /* SD_CTL bits */
275 #define SD_CTL_STREAM_RESET 0x01 /* stream reset bit */
276 #define SD_CTL_DMA_START 0x02 /* stream DMA start bit */
277 #define SD_CTL_STRIPE (3 << 16) /* stripe control */
278 #define SD_CTL_TRAFFIC_PRIO (1 << 18) /* traffic priority */
279 #define SD_CTL_DIR (1 << 19) /* bi-directional stream */
280 #define SD_CTL_STREAM_TAG_MASK (0xf << 20)
281 #define SD_CTL_STREAM_TAG_SHIFT 20
282
283 /* SD_CTL and SD_STS */
284 #define SD_INT_DESC_ERR 0x10 /* descriptor error interrupt */
285 #define SD_INT_FIFO_ERR 0x08 /* FIFO error interrupt */
286 #define SD_INT_COMPLETE 0x04 /* completion interrupt */
287 #define SD_INT_MASK (SD_INT_DESC_ERR|SD_INT_FIFO_ERR|\
288 SD_INT_COMPLETE)
289
290 /* SD_STS */
291 #define SD_STS_FIFO_READY 0x20 /* FIFO ready */
292
293 /* INTCTL and INTSTS */
294 #define ICH6_INT_ALL_STREAM 0xff /* all stream interrupts */
295 #define ICH6_INT_CTRL_EN 0x40000000 /* controller interrupt enable bit */
296 #define ICH6_INT_GLOBAL_EN 0x80000000 /* global interrupt enable bit */
297
298 /* below are so far hardcoded - should read registers in future */
299 #define ICH6_MAX_CORB_ENTRIES 256
300 #define ICH6_MAX_RIRB_ENTRIES 256
301
302 /* position fix mode */
303 enum {
304 POS_FIX_AUTO,
305 POS_FIX_LPIB,
306 POS_FIX_POSBUF,
307 };
308
309 /* Defines for ATI HD Audio support in SB450 south bridge */
310 #define ATI_SB450_HDAUDIO_MISC_CNTR2_ADDR 0x42
311 #define ATI_SB450_HDAUDIO_ENABLE_SNOOP 0x02
312
313 /* Defines for Nvidia HDA support */
314 #define NVIDIA_HDA_TRANSREG_ADDR 0x4e
315 #define NVIDIA_HDA_ENABLE_COHBITS 0x0f
316 #define NVIDIA_HDA_ISTRM_COH 0x4d
317 #define NVIDIA_HDA_OSTRM_COH 0x4c
318 #define NVIDIA_HDA_ENABLE_COHBIT 0x01
319
320 /* Defines for Intel SCH HDA snoop control */
321 #define INTEL_SCH_HDA_DEVC 0x78
322 #define INTEL_SCH_HDA_DEVC_NOSNOOP (0x1<<11)
323
324 /* Define IN stream 0 FIFO size offset in VIA controller */
325 #define VIA_IN_STREAM0_FIFO_SIZE_OFFSET 0x90
326 /* Define VIA HD Audio Device ID*/
327 #define VIA_HDAC_DEVICE_ID 0x3288
328
329 /* HD Audio class code */
330 #define PCI_CLASS_MULTIMEDIA_HD_AUDIO 0x0403
331
332 /*
333 */
334
335 struct azx_dev {
336 struct snd_dma_buffer bdl; /* BDL buffer */
337 u32 *posbuf; /* position buffer pointer */
338
339 unsigned int bufsize; /* size of the play buffer in bytes */
340 unsigned int period_bytes; /* size of the period in bytes */
341 unsigned int frags; /* number for period in the play buffer */
342 unsigned int fifo_size; /* FIFO size */
343 unsigned long start_jiffies; /* start + minimum jiffies */
344 unsigned long min_jiffies; /* minimum jiffies before position is valid */
345
346 void __iomem *sd_addr; /* stream descriptor pointer */
347
348 u32 sd_int_sta_mask; /* stream int status mask */
349
350 /* pcm support */
351 struct snd_pcm_substream *substream; /* assigned substream,
352 * set in PCM open
353 */
354 unsigned int format_val; /* format value to be set in the
355 * controller and the codec
356 */
357 unsigned char stream_tag; /* assigned stream */
358 unsigned char index; /* stream index */
359 int device; /* last device number assigned to */
360
361 unsigned int opened :1;
362 unsigned int running :1;
363 unsigned int irq_pending :1;
364 unsigned int start_flag: 1; /* stream full start flag */
365 /*
366 * For VIA:
367 * A flag to ensure DMA position is 0
368 * when link position is not greater than FIFO size
369 */
370 unsigned int insufficient :1;
371 };
372
373 /* CORB/RIRB */
374 struct azx_rb {
375 u32 *buf; /* CORB/RIRB buffer
376 * Each CORB entry is 4byte, RIRB is 8byte
377 */
378 dma_addr_t addr; /* physical address of CORB/RIRB buffer */
379 /* for RIRB */
380 unsigned short rp, wp; /* read/write pointers */
381 int cmds[AZX_MAX_CODECS]; /* number of pending requests */
382 u32 res[AZX_MAX_CODECS]; /* last read value */
383 };
384
385 struct azx {
386 struct snd_card *card;
387 struct pci_dev *pci;
388 int dev_index;
389
390 /* chip type specific */
391 int driver_type;
392 int playback_streams;
393 int playback_index_offset;
394 int capture_streams;
395 int capture_index_offset;
396 int num_streams;
397
398 /* pci resources */
399 unsigned long addr;
400 void __iomem *remap_addr;
401 int irq;
402
403 /* locks */
404 spinlock_t reg_lock;
405 struct mutex open_mutex;
406
407 /* streams (x num_streams) */
408 struct azx_dev *azx_dev;
409
410 /* PCM */
411 struct snd_pcm *pcm[HDA_MAX_PCMS];
412
413 /* HD codec */
414 unsigned short codec_mask;
415 int codec_probe_mask; /* copied from probe_mask option */
416 struct hda_bus *bus;
417 unsigned int beep_mode;
418
419 /* CORB/RIRB */
420 struct azx_rb corb;
421 struct azx_rb rirb;
422
423 /* CORB/RIRB and position buffers */
424 struct snd_dma_buffer rb;
425 struct snd_dma_buffer posbuf;
426
427 /* flags */
428 int position_fix;
429 int poll_count;
430 unsigned int running :1;
431 unsigned int initialized :1;
432 unsigned int single_cmd :1;
433 unsigned int polling_mode :1;
434 unsigned int msi :1;
435 unsigned int irq_pending_warned :1;
436 unsigned int via_dmapos_patch :1; /* enable DMA-position fix for VIA */
437 unsigned int probing :1; /* codec probing phase */
438
439 /* for debugging */
440 unsigned int last_cmd[AZX_MAX_CODECS];
441
442 /* for pending irqs */
443 struct work_struct irq_pending_work;
444
445 /* reboot notifier (for mysterious hangup problem at power-down) */
446 struct notifier_block reboot_notifier;
447 };
448
449 /* driver types */
450 enum {
451 AZX_DRIVER_ICH,
452 AZX_DRIVER_PCH,
453 AZX_DRIVER_SCH,
454 AZX_DRIVER_ATI,
455 AZX_DRIVER_ATIHDMI,
456 AZX_DRIVER_VIA,
457 AZX_DRIVER_SIS,
458 AZX_DRIVER_ULI,
459 AZX_DRIVER_NVIDIA,
460 AZX_DRIVER_TERA,
461 AZX_DRIVER_GENERIC,
462 AZX_NUM_DRIVERS, /* keep this as last entry */
463 };
464
465 static char *driver_short_names[] __devinitdata = {
466 [AZX_DRIVER_ICH] = "HDA Intel",
467 [AZX_DRIVER_PCH] = "HDA Intel PCH",
468 [AZX_DRIVER_SCH] = "HDA Intel MID",
469 [AZX_DRIVER_ATI] = "HDA ATI SB",
470 [AZX_DRIVER_ATIHDMI] = "HDA ATI HDMI",
471 [AZX_DRIVER_VIA] = "HDA VIA VT82xx",
472 [AZX_DRIVER_SIS] = "HDA SIS966",
473 [AZX_DRIVER_ULI] = "HDA ULI M5461",
474 [AZX_DRIVER_NVIDIA] = "HDA NVidia",
475 [AZX_DRIVER_TERA] = "HDA Teradici",
476 [AZX_DRIVER_GENERIC] = "HD-Audio Generic",
477 };
478
479 /*
480 * macros for easy use
481 */
482 #define azx_writel(chip,reg,value) \
483 writel(value, (chip)->remap_addr + ICH6_REG_##reg)
484 #define azx_readl(chip,reg) \
485 readl((chip)->remap_addr + ICH6_REG_##reg)
486 #define azx_writew(chip,reg,value) \
487 writew(value, (chip)->remap_addr + ICH6_REG_##reg)
488 #define azx_readw(chip,reg) \
489 readw((chip)->remap_addr + ICH6_REG_##reg)
490 #define azx_writeb(chip,reg,value) \
491 writeb(value, (chip)->remap_addr + ICH6_REG_##reg)
492 #define azx_readb(chip,reg) \
493 readb((chip)->remap_addr + ICH6_REG_##reg)
494
495 #define azx_sd_writel(dev,reg,value) \
496 writel(value, (dev)->sd_addr + ICH6_REG_##reg)
497 #define azx_sd_readl(dev,reg) \
498 readl((dev)->sd_addr + ICH6_REG_##reg)
499 #define azx_sd_writew(dev,reg,value) \
500 writew(value, (dev)->sd_addr + ICH6_REG_##reg)
501 #define azx_sd_readw(dev,reg) \
502 readw((dev)->sd_addr + ICH6_REG_##reg)
503 #define azx_sd_writeb(dev,reg,value) \
504 writeb(value, (dev)->sd_addr + ICH6_REG_##reg)
505 #define azx_sd_readb(dev,reg) \
506 readb((dev)->sd_addr + ICH6_REG_##reg)
507
508 /* for pcm support */
509 #define get_azx_dev(substream) (substream->runtime->private_data)
510
511 static int azx_acquire_irq(struct azx *chip, int do_disconnect);
512 static int azx_send_cmd(struct hda_bus *bus, unsigned int val);
513 /*
514 * Interface for HD codec
515 */
516
517 /*
518 * CORB / RIRB interface
519 */
520 static int azx_alloc_cmd_io(struct azx *chip)
521 {
522 int err;
523
524 /* single page (at least 4096 bytes) must suffice for both ringbuffes */
525 err = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV,
526 snd_dma_pci_data(chip->pci),
527 PAGE_SIZE, &chip->rb);
528 if (err < 0) {
529 snd_printk(KERN_ERR SFX "cannot allocate CORB/RIRB\n");
530 return err;
531 }
532 return 0;
533 }
534
535 static void azx_init_cmd_io(struct azx *chip)
536 {
537 spin_lock_irq(&chip->reg_lock);
538 /* CORB set up */
539 chip->corb.addr = chip->rb.addr;
540 chip->corb.buf = (u32 *)chip->rb.area;
541 azx_writel(chip, CORBLBASE, (u32)chip->corb.addr);
542 azx_writel(chip, CORBUBASE, upper_32_bits(chip->corb.addr));
543
544 /* set the corb size to 256 entries (ULI requires explicitly) */
545 azx_writeb(chip, CORBSIZE, 0x02);
546 /* set the corb write pointer to 0 */
547 azx_writew(chip, CORBWP, 0);
548 /* reset the corb hw read pointer */
549 azx_writew(chip, CORBRP, ICH6_CORBRP_RST);
550 /* enable corb dma */
551 azx_writeb(chip, CORBCTL, ICH6_CORBCTL_RUN);
552
553 /* RIRB set up */
554 chip->rirb.addr = chip->rb.addr + 2048;
555 chip->rirb.buf = (u32 *)(chip->rb.area + 2048);
556 chip->rirb.wp = chip->rirb.rp = 0;
557 memset(chip->rirb.cmds, 0, sizeof(chip->rirb.cmds));
558 azx_writel(chip, RIRBLBASE, (u32)chip->rirb.addr);
559 azx_writel(chip, RIRBUBASE, upper_32_bits(chip->rirb.addr));
560
561 /* set the rirb size to 256 entries (ULI requires explicitly) */
562 azx_writeb(chip, RIRBSIZE, 0x02);
563 /* reset the rirb hw write pointer */
564 azx_writew(chip, RIRBWP, ICH6_RIRBWP_RST);
565 /* set N=1, get RIRB response interrupt for new entry */
566 azx_writew(chip, RINTCNT, 1);
567 /* enable rirb dma and response irq */
568 azx_writeb(chip, RIRBCTL, ICH6_RBCTL_DMA_EN | ICH6_RBCTL_IRQ_EN);
569 spin_unlock_irq(&chip->reg_lock);
570 }
571
572 static void azx_free_cmd_io(struct azx *chip)
573 {
574 spin_lock_irq(&chip->reg_lock);
575 /* disable ringbuffer DMAs */
576 azx_writeb(chip, RIRBCTL, 0);
577 azx_writeb(chip, CORBCTL, 0);
578 spin_unlock_irq(&chip->reg_lock);
579 }
580
581 static unsigned int azx_command_addr(u32 cmd)
582 {
583 unsigned int addr = cmd >> 28;
584
585 if (addr >= AZX_MAX_CODECS) {
586 snd_BUG();
587 addr = 0;
588 }
589
590 return addr;
591 }
592
593 static unsigned int azx_response_addr(u32 res)
594 {
595 unsigned int addr = res & 0xf;
596
597 if (addr >= AZX_MAX_CODECS) {
598 snd_BUG();
599 addr = 0;
600 }
601
602 return addr;
603 }
604
605 /* send a command */
606 static int azx_corb_send_cmd(struct hda_bus *bus, u32 val)
607 {
608 struct azx *chip = bus->private_data;
609 unsigned int addr = azx_command_addr(val);
610 unsigned int wp;
611
612 spin_lock_irq(&chip->reg_lock);
613
614 /* add command to corb */
615 wp = azx_readb(chip, CORBWP);
616 wp++;
617 wp %= ICH6_MAX_CORB_ENTRIES;
618
619 chip->rirb.cmds[addr]++;
620 chip->corb.buf[wp] = cpu_to_le32(val);
621 azx_writel(chip, CORBWP, wp);
622
623 spin_unlock_irq(&chip->reg_lock);
624
625 return 0;
626 }
627
628 #define ICH6_RIRB_EX_UNSOL_EV (1<<4)
629
630 /* retrieve RIRB entry - called from interrupt handler */
631 static void azx_update_rirb(struct azx *chip)
632 {
633 unsigned int rp, wp;
634 unsigned int addr;
635 u32 res, res_ex;
636
637 wp = azx_readb(chip, RIRBWP);
638 if (wp == chip->rirb.wp)
639 return;
640 chip->rirb.wp = wp;
641
642 while (chip->rirb.rp != wp) {
643 chip->rirb.rp++;
644 chip->rirb.rp %= ICH6_MAX_RIRB_ENTRIES;
645
646 rp = chip->rirb.rp << 1; /* an RIRB entry is 8-bytes */
647 res_ex = le32_to_cpu(chip->rirb.buf[rp + 1]);
648 res = le32_to_cpu(chip->rirb.buf[rp]);
649 addr = azx_response_addr(res_ex);
650 if (res_ex & ICH6_RIRB_EX_UNSOL_EV)
651 snd_hda_queue_unsol_event(chip->bus, res, res_ex);
652 else if (chip->rirb.cmds[addr]) {
653 chip->rirb.res[addr] = res;
654 smp_wmb();
655 chip->rirb.cmds[addr]--;
656 } else
657 snd_printk(KERN_ERR SFX "spurious response %#x:%#x, "
658 "last cmd=%#08x\n",
659 res, res_ex,
660 chip->last_cmd[addr]);
661 }
662 }
663
664 /* receive a response */
665 static unsigned int azx_rirb_get_response(struct hda_bus *bus,
666 unsigned int addr)
667 {
668 struct azx *chip = bus->private_data;
669 unsigned long timeout;
670 int do_poll = 0;
671
672 again:
673 timeout = jiffies + msecs_to_jiffies(1000);
674 for (;;) {
675 if (chip->polling_mode || do_poll) {
676 spin_lock_irq(&chip->reg_lock);
677 azx_update_rirb(chip);
678 spin_unlock_irq(&chip->reg_lock);
679 }
680 if (!chip->rirb.cmds[addr]) {
681 smp_rmb();
682 bus->rirb_error = 0;
683
684 if (!do_poll)
685 chip->poll_count = 0;
686 return chip->rirb.res[addr]; /* the last value */
687 }
688 if (time_after(jiffies, timeout))
689 break;
690 if (bus->needs_damn_long_delay)
691 msleep(2); /* temporary workaround */
692 else {
693 udelay(10);
694 cond_resched();
695 }
696 }
697
698 if (!chip->polling_mode && chip->poll_count < 2) {
699 snd_printdd(SFX "azx_get_response timeout, "
700 "polling the codec once: last cmd=0x%08x\n",
701 chip->last_cmd[addr]);
702 do_poll = 1;
703 chip->poll_count++;
704 goto again;
705 }
706
707
708 if (!chip->polling_mode) {
709 snd_printk(KERN_WARNING SFX "azx_get_response timeout, "
710 "switching to polling mode: last cmd=0x%08x\n",
711 chip->last_cmd[addr]);
712 chip->polling_mode = 1;
713 goto again;
714 }
715
716 if (chip->msi) {
717 snd_printk(KERN_WARNING SFX "No response from codec, "
718 "disabling MSI: last cmd=0x%08x\n",
719 chip->last_cmd[addr]);
720 free_irq(chip->irq, chip);
721 chip->irq = -1;
722 pci_disable_msi(chip->pci);
723 chip->msi = 0;
724 if (azx_acquire_irq(chip, 1) < 0) {
725 bus->rirb_error = 1;
726 return -1;
727 }
728 goto again;
729 }
730
731 if (chip->probing) {
732 /* If this critical timeout happens during the codec probing
733 * phase, this is likely an access to a non-existing codec
734 * slot. Better to return an error and reset the system.
735 */
736 return -1;
737 }
738
739 /* a fatal communication error; need either to reset or to fallback
740 * to the single_cmd mode
741 */
742 bus->rirb_error = 1;
743 if (bus->allow_bus_reset && !bus->response_reset && !bus->in_reset) {
744 bus->response_reset = 1;
745 return -1; /* give a chance to retry */
746 }
747
748 snd_printk(KERN_ERR "hda_intel: azx_get_response timeout, "
749 "switching to single_cmd mode: last cmd=0x%08x\n",
750 chip->last_cmd[addr]);
751 chip->single_cmd = 1;
752 bus->response_reset = 0;
753 /* release CORB/RIRB */
754 azx_free_cmd_io(chip);
755 /* disable unsolicited responses */
756 azx_writel(chip, GCTL, azx_readl(chip, GCTL) & ~ICH6_GCTL_UNSOL);
757 return -1;
758 }
759
760 /*
761 * Use the single immediate command instead of CORB/RIRB for simplicity
762 *
763 * Note: according to Intel, this is not preferred use. The command was
764 * intended for the BIOS only, and may get confused with unsolicited
765 * responses. So, we shouldn't use it for normal operation from the
766 * driver.
767 * I left the codes, however, for debugging/testing purposes.
768 */
769
770 /* receive a response */
771 static int azx_single_wait_for_response(struct azx *chip, unsigned int addr)
772 {
773 int timeout = 50;
774
775 while (timeout--) {
776 /* check IRV busy bit */
777 if (azx_readw(chip, IRS) & ICH6_IRS_VALID) {
778 /* reuse rirb.res as the response return value */
779 chip->rirb.res[addr] = azx_readl(chip, IR);
780 return 0;
781 }
782 udelay(1);
783 }
784 if (printk_ratelimit())
785 snd_printd(SFX "get_response timeout: IRS=0x%x\n",
786 azx_readw(chip, IRS));
787 chip->rirb.res[addr] = -1;
788 return -EIO;
789 }
790
791 /* send a command */
792 static int azx_single_send_cmd(struct hda_bus *bus, u32 val)
793 {
794 struct azx *chip = bus->private_data;
795 unsigned int addr = azx_command_addr(val);
796 int timeout = 50;
797
798 bus->rirb_error = 0;
799 while (timeout--) {
800 /* check ICB busy bit */
801 if (!((azx_readw(chip, IRS) & ICH6_IRS_BUSY))) {
802 /* Clear IRV valid bit */
803 azx_writew(chip, IRS, azx_readw(chip, IRS) |
804 ICH6_IRS_VALID);
805 azx_writel(chip, IC, val);
806 azx_writew(chip, IRS, azx_readw(chip, IRS) |
807 ICH6_IRS_BUSY);
808 return azx_single_wait_for_response(chip, addr);
809 }
810 udelay(1);
811 }
812 if (printk_ratelimit())
813 snd_printd(SFX "send_cmd timeout: IRS=0x%x, val=0x%x\n",
814 azx_readw(chip, IRS), val);
815 return -EIO;
816 }
817
818 /* receive a response */
819 static unsigned int azx_single_get_response(struct hda_bus *bus,
820 unsigned int addr)
821 {
822 struct azx *chip = bus->private_data;
823 return chip->rirb.res[addr];
824 }
825
826 /*
827 * The below are the main callbacks from hda_codec.
828 *
829 * They are just the skeleton to call sub-callbacks according to the
830 * current setting of chip->single_cmd.
831 */
832
833 /* send a command */
834 static int azx_send_cmd(struct hda_bus *bus, unsigned int val)
835 {
836 struct azx *chip = bus->private_data;
837
838 chip->last_cmd[azx_command_addr(val)] = val;
839 if (chip->single_cmd)
840 return azx_single_send_cmd(bus, val);
841 else
842 return azx_corb_send_cmd(bus, val);
843 }
844
845 /* get a response */
846 static unsigned int azx_get_response(struct hda_bus *bus,
847 unsigned int addr)
848 {
849 struct azx *chip = bus->private_data;
850 if (chip->single_cmd)
851 return azx_single_get_response(bus, addr);
852 else
853 return azx_rirb_get_response(bus, addr);
854 }
855
856 #ifdef CONFIG_SND_HDA_POWER_SAVE
857 static void azx_power_notify(struct hda_bus *bus);
858 #endif
859
860 /* reset codec link */
861 static int azx_reset(struct azx *chip)
862 {
863 int count;
864
865 /* clear STATESTS */
866 azx_writeb(chip, STATESTS, STATESTS_INT_MASK);
867
868 /* reset controller */
869 azx_writel(chip, GCTL, azx_readl(chip, GCTL) & ~ICH6_GCTL_RESET);
870
871 count = 50;
872 while (azx_readb(chip, GCTL) && --count)
873 msleep(1);
874
875 /* delay for >= 100us for codec PLL to settle per spec
876 * Rev 0.9 section 5.5.1
877 */
878 msleep(1);
879
880 /* Bring controller out of reset */
881 azx_writeb(chip, GCTL, azx_readb(chip, GCTL) | ICH6_GCTL_RESET);
882
883 count = 50;
884 while (!azx_readb(chip, GCTL) && --count)
885 msleep(1);
886
887 /* Brent Chartrand said to wait >= 540us for codecs to initialize */
888 msleep(1);
889
890 /* check to see if controller is ready */
891 if (!azx_readb(chip, GCTL)) {
892 snd_printd(SFX "azx_reset: controller not ready!\n");
893 return -EBUSY;
894 }
895
896 /* Accept unsolicited responses */
897 if (!chip->single_cmd)
898 azx_writel(chip, GCTL, azx_readl(chip, GCTL) |
899 ICH6_GCTL_UNSOL);
900
901 /* detect codecs */
902 if (!chip->codec_mask) {
903 chip->codec_mask = azx_readw(chip, STATESTS);
904 snd_printdd(SFX "codec_mask = 0x%x\n", chip->codec_mask);
905 }
906
907 return 0;
908 }
909
910
911 /*
912 * Lowlevel interface
913 */
914
915 /* enable interrupts */
916 static void azx_int_enable(struct azx *chip)
917 {
918 /* enable controller CIE and GIE */
919 azx_writel(chip, INTCTL, azx_readl(chip, INTCTL) |
920 ICH6_INT_CTRL_EN | ICH6_INT_GLOBAL_EN);
921 }
922
923 /* disable interrupts */
924 static void azx_int_disable(struct azx *chip)
925 {
926 int i;
927
928 /* disable interrupts in stream descriptor */
929 for (i = 0; i < chip->num_streams; i++) {
930 struct azx_dev *azx_dev = &chip->azx_dev[i];
931 azx_sd_writeb(azx_dev, SD_CTL,
932 azx_sd_readb(azx_dev, SD_CTL) & ~SD_INT_MASK);
933 }
934
935 /* disable SIE for all streams */
936 azx_writeb(chip, INTCTL, 0);
937
938 /* disable controller CIE and GIE */
939 azx_writel(chip, INTCTL, azx_readl(chip, INTCTL) &
940 ~(ICH6_INT_CTRL_EN | ICH6_INT_GLOBAL_EN));
941 }
942
943 /* clear interrupts */
944 static void azx_int_clear(struct azx *chip)
945 {
946 int i;
947
948 /* clear stream status */
949 for (i = 0; i < chip->num_streams; i++) {
950 struct azx_dev *azx_dev = &chip->azx_dev[i];
951 azx_sd_writeb(azx_dev, SD_STS, SD_INT_MASK);
952 }
953
954 /* clear STATESTS */
955 azx_writeb(chip, STATESTS, STATESTS_INT_MASK);
956
957 /* clear rirb status */
958 azx_writeb(chip, RIRBSTS, RIRB_INT_MASK);
959
960 /* clear int status */
961 azx_writel(chip, INTSTS, ICH6_INT_CTRL_EN | ICH6_INT_ALL_STREAM);
962 }
963
964 /* start a stream */
965 static void azx_stream_start(struct azx *chip, struct azx_dev *azx_dev)
966 {
967 /*
968 * Before stream start, initialize parameter
969 */
970 azx_dev->insufficient = 1;
971
972 /* enable SIE */
973 azx_writel(chip, INTCTL,
974 azx_readl(chip, INTCTL) | (1 << azx_dev->index));
975 /* set DMA start and interrupt mask */
976 azx_sd_writeb(azx_dev, SD_CTL, azx_sd_readb(azx_dev, SD_CTL) |
977 SD_CTL_DMA_START | SD_INT_MASK);
978 }
979
980 /* stop DMA */
981 static void azx_stream_clear(struct azx *chip, struct azx_dev *azx_dev)
982 {
983 azx_sd_writeb(azx_dev, SD_CTL, azx_sd_readb(azx_dev, SD_CTL) &
984 ~(SD_CTL_DMA_START | SD_INT_MASK));
985 azx_sd_writeb(azx_dev, SD_STS, SD_INT_MASK); /* to be sure */
986 }
987
988 /* stop a stream */
989 static void azx_stream_stop(struct azx *chip, struct azx_dev *azx_dev)
990 {
991 azx_stream_clear(chip, azx_dev);
992 /* disable SIE */
993 azx_writel(chip, INTCTL,
994 azx_readl(chip, INTCTL) & ~(1 << azx_dev->index));
995 }
996
997
998 /*
999 * reset and start the controller registers
1000 */
1001 static void azx_init_chip(struct azx *chip)
1002 {
1003 if (chip->initialized)
1004 return;
1005
1006 /* reset controller */
1007 azx_reset(chip);
1008
1009 /* initialize interrupts */
1010 azx_int_clear(chip);
1011 azx_int_enable(chip);
1012
1013 /* initialize the codec command I/O */
1014 if (!chip->single_cmd)
1015 azx_init_cmd_io(chip);
1016
1017 /* program the position buffer */
1018 azx_writel(chip, DPLBASE, (u32)chip->posbuf.addr);
1019 azx_writel(chip, DPUBASE, upper_32_bits(chip->posbuf.addr));
1020
1021 chip->initialized = 1;
1022 }
1023
1024 /*
1025 * initialize the PCI registers
1026 */
1027 /* update bits in a PCI register byte */
1028 static void update_pci_byte(struct pci_dev *pci, unsigned int reg,
1029 unsigned char mask, unsigned char val)
1030 {
1031 unsigned char data;
1032
1033 pci_read_config_byte(pci, reg, &data);
1034 data &= ~mask;
1035 data |= (val & mask);
1036 pci_write_config_byte(pci, reg, data);
1037 }
1038
1039 static void azx_init_pci(struct azx *chip)
1040 {
1041 unsigned short snoop;
1042
1043 /* Clear bits 0-2 of PCI register TCSEL (at offset 0x44)
1044 * TCSEL == Traffic Class Select Register, which sets PCI express QOS
1045 * Ensuring these bits are 0 clears playback static on some HD Audio
1046 * codecs
1047 */
1048 update_pci_byte(chip->pci, ICH6_PCIREG_TCSEL, 0x07, 0);
1049
1050 switch (chip->driver_type) {
1051 case AZX_DRIVER_ATI:
1052 /* For ATI SB450 azalia HD audio, we need to enable snoop */
1053 update_pci_byte(chip->pci,
1054 ATI_SB450_HDAUDIO_MISC_CNTR2_ADDR,
1055 0x07, ATI_SB450_HDAUDIO_ENABLE_SNOOP);
1056 break;
1057 case AZX_DRIVER_NVIDIA:
1058 /* For NVIDIA HDA, enable snoop */
1059 update_pci_byte(chip->pci,
1060 NVIDIA_HDA_TRANSREG_ADDR,
1061 0x0f, NVIDIA_HDA_ENABLE_COHBITS);
1062 update_pci_byte(chip->pci,
1063 NVIDIA_HDA_ISTRM_COH,
1064 0x01, NVIDIA_HDA_ENABLE_COHBIT);
1065 update_pci_byte(chip->pci,
1066 NVIDIA_HDA_OSTRM_COH,
1067 0x01, NVIDIA_HDA_ENABLE_COHBIT);
1068 break;
1069 case AZX_DRIVER_SCH:
1070 case AZX_DRIVER_PCH:
1071 pci_read_config_word(chip->pci, INTEL_SCH_HDA_DEVC, &snoop);
1072 if (snoop & INTEL_SCH_HDA_DEVC_NOSNOOP) {
1073 pci_write_config_word(chip->pci, INTEL_SCH_HDA_DEVC,
1074 snoop & (~INTEL_SCH_HDA_DEVC_NOSNOOP));
1075 pci_read_config_word(chip->pci,
1076 INTEL_SCH_HDA_DEVC, &snoop);
1077 snd_printdd(SFX "HDA snoop disabled, enabling ... %s\n",
1078 (snoop & INTEL_SCH_HDA_DEVC_NOSNOOP)
1079 ? "Failed" : "OK");
1080 }
1081 break;
1082
1083 }
1084 }
1085
1086
1087 static int azx_position_ok(struct azx *chip, struct azx_dev *azx_dev);
1088
1089 /*
1090 * interrupt handler
1091 */
1092 static irqreturn_t azx_interrupt(int irq, void *dev_id)
1093 {
1094 struct azx *chip = dev_id;
1095 struct azx_dev *azx_dev;
1096 u32 status;
1097 int i, ok;
1098
1099 spin_lock(&chip->reg_lock);
1100
1101 status = azx_readl(chip, INTSTS);
1102 if (status == 0) {
1103 spin_unlock(&chip->reg_lock);
1104 return IRQ_NONE;
1105 }
1106
1107 for (i = 0; i < chip->num_streams; i++) {
1108 azx_dev = &chip->azx_dev[i];
1109 if (status & azx_dev->sd_int_sta_mask) {
1110 azx_sd_writeb(azx_dev, SD_STS, SD_INT_MASK);
1111 if (!azx_dev->substream || !azx_dev->running)
1112 continue;
1113 /* check whether this IRQ is really acceptable */
1114 ok = azx_position_ok(chip, azx_dev);
1115 if (ok == 1) {
1116 azx_dev->irq_pending = 0;
1117 spin_unlock(&chip->reg_lock);
1118 snd_pcm_period_elapsed(azx_dev->substream);
1119 spin_lock(&chip->reg_lock);
1120 } else if (ok == 0 && chip->bus && chip->bus->workq) {
1121 /* bogus IRQ, process it later */
1122 azx_dev->irq_pending = 1;
1123 queue_work(chip->bus->workq,
1124 &chip->irq_pending_work);
1125 }
1126 }
1127 }
1128
1129 /* clear rirb int */
1130 status = azx_readb(chip, RIRBSTS);
1131 if (status & RIRB_INT_MASK) {
1132 if (status & RIRB_INT_RESPONSE)
1133 azx_update_rirb(chip);
1134 azx_writeb(chip, RIRBSTS, RIRB_INT_MASK);
1135 }
1136
1137 #if 0
1138 /* clear state status int */
1139 if (azx_readb(chip, STATESTS) & 0x04)
1140 azx_writeb(chip, STATESTS, 0x04);
1141 #endif
1142 spin_unlock(&chip->reg_lock);
1143
1144 return IRQ_HANDLED;
1145 }
1146
1147
1148 /*
1149 * set up a BDL entry
1150 */
1151 static int setup_bdle(struct snd_pcm_substream *substream,
1152 struct azx_dev *azx_dev, u32 **bdlp,
1153 int ofs, int size, int with_ioc)
1154 {
1155 u32 *bdl = *bdlp;
1156
1157 while (size > 0) {
1158 dma_addr_t addr;
1159 int chunk;
1160
1161 if (azx_dev->frags >= AZX_MAX_BDL_ENTRIES)
1162 return -EINVAL;
1163
1164 addr = snd_pcm_sgbuf_get_addr(substream, ofs);
1165 /* program the address field of the BDL entry */
1166 bdl[0] = cpu_to_le32((u32)addr);
1167 bdl[1] = cpu_to_le32(upper_32_bits(addr));
1168 /* program the size field of the BDL entry */
1169 chunk = snd_pcm_sgbuf_get_chunk_size(substream, ofs, size);
1170 bdl[2] = cpu_to_le32(chunk);
1171 /* program the IOC to enable interrupt
1172 * only when the whole fragment is processed
1173 */
1174 size -= chunk;
1175 bdl[3] = (size || !with_ioc) ? 0 : cpu_to_le32(0x01);
1176 bdl += 4;
1177 azx_dev->frags++;
1178 ofs += chunk;
1179 }
1180 *bdlp = bdl;
1181 return ofs;
1182 }
1183
1184 /*
1185 * set up BDL entries
1186 */
1187 static int azx_setup_periods(struct azx *chip,
1188 struct snd_pcm_substream *substream,
1189 struct azx_dev *azx_dev)
1190 {
1191 u32 *bdl;
1192 int i, ofs, periods, period_bytes;
1193 int pos_adj;
1194
1195 /* reset BDL address */
1196 azx_sd_writel(azx_dev, SD_BDLPL, 0);
1197 azx_sd_writel(azx_dev, SD_BDLPU, 0);
1198
1199 period_bytes = azx_dev->period_bytes;
1200 periods = azx_dev->bufsize / period_bytes;
1201
1202 /* program the initial BDL entries */
1203 bdl = (u32 *)azx_dev->bdl.area;
1204 ofs = 0;
1205 azx_dev->frags = 0;
1206 pos_adj = bdl_pos_adj[chip->dev_index];
1207 if (pos_adj > 0) {
1208 struct snd_pcm_runtime *runtime = substream->runtime;
1209 int pos_align = pos_adj;
1210 pos_adj = (pos_adj * runtime->rate + 47999) / 48000;
1211 if (!pos_adj)
1212 pos_adj = pos_align;
1213 else
1214 pos_adj = ((pos_adj + pos_align - 1) / pos_align) *
1215 pos_align;
1216 pos_adj = frames_to_bytes(runtime, pos_adj);
1217 if (pos_adj >= period_bytes) {
1218 snd_printk(KERN_WARNING SFX "Too big adjustment %d\n",
1219 bdl_pos_adj[chip->dev_index]);
1220 pos_adj = 0;
1221 } else {
1222 ofs = setup_bdle(substream, azx_dev,
1223 &bdl, ofs, pos_adj, 1);
1224 if (ofs < 0)
1225 goto error;
1226 }
1227 } else
1228 pos_adj = 0;
1229 for (i = 0; i < periods; i++) {
1230 if (i == periods - 1 && pos_adj)
1231 ofs = setup_bdle(substream, azx_dev, &bdl, ofs,
1232 period_bytes - pos_adj, 0);
1233 else
1234 ofs = setup_bdle(substream, azx_dev, &bdl, ofs,
1235 period_bytes, 1);
1236 if (ofs < 0)
1237 goto error;
1238 }
1239 return 0;
1240
1241 error:
1242 snd_printk(KERN_ERR SFX "Too many BDL entries: buffer=%d, period=%d\n",
1243 azx_dev->bufsize, period_bytes);
1244 return -EINVAL;
1245 }
1246
1247 /* reset stream */
1248 static void azx_stream_reset(struct azx *chip, struct azx_dev *azx_dev)
1249 {
1250 unsigned char val;
1251 int timeout;
1252
1253 azx_stream_clear(chip, azx_dev);
1254
1255 azx_sd_writeb(azx_dev, SD_CTL, azx_sd_readb(azx_dev, SD_CTL) |
1256 SD_CTL_STREAM_RESET);
1257 udelay(3);
1258 timeout = 300;
1259 while (!((val = azx_sd_readb(azx_dev, SD_CTL)) & SD_CTL_STREAM_RESET) &&
1260 --timeout)
1261 ;
1262 val &= ~SD_CTL_STREAM_RESET;
1263 azx_sd_writeb(azx_dev, SD_CTL, val);
1264 udelay(3);
1265
1266 timeout = 300;
1267 /* waiting for hardware to report that the stream is out of reset */
1268 while (((val = azx_sd_readb(azx_dev, SD_CTL)) & SD_CTL_STREAM_RESET) &&
1269 --timeout)
1270 ;
1271
1272 /* reset first position - may not be synced with hw at this time */
1273 *azx_dev->posbuf = 0;
1274 }
1275
1276 /*
1277 * set up the SD for streaming
1278 */
1279 static int azx_setup_controller(struct azx *chip, struct azx_dev *azx_dev)
1280 {
1281 /* make sure the run bit is zero for SD */
1282 azx_stream_clear(chip, azx_dev);
1283 /* program the stream_tag */
1284 azx_sd_writel(azx_dev, SD_CTL,
1285 (azx_sd_readl(azx_dev, SD_CTL) & ~SD_CTL_STREAM_TAG_MASK)|
1286 (azx_dev->stream_tag << SD_CTL_STREAM_TAG_SHIFT));
1287
1288 /* program the length of samples in cyclic buffer */
1289 azx_sd_writel(azx_dev, SD_CBL, azx_dev->bufsize);
1290
1291 /* program the stream format */
1292 /* this value needs to be the same as the one programmed */
1293 azx_sd_writew(azx_dev, SD_FORMAT, azx_dev->format_val);
1294
1295 /* program the stream LVI (last valid index) of the BDL */
1296 azx_sd_writew(azx_dev, SD_LVI, azx_dev->frags - 1);
1297
1298 /* program the BDL address */
1299 /* lower BDL address */
1300 azx_sd_writel(azx_dev, SD_BDLPL, (u32)azx_dev->bdl.addr);
1301 /* upper BDL address */
1302 azx_sd_writel(azx_dev, SD_BDLPU, upper_32_bits(azx_dev->bdl.addr));
1303
1304 /* enable the position buffer */
1305 if (chip->position_fix == POS_FIX_POSBUF ||
1306 chip->position_fix == POS_FIX_AUTO ||
1307 chip->via_dmapos_patch) {
1308 if (!(azx_readl(chip, DPLBASE) & ICH6_DPLBASE_ENABLE))
1309 azx_writel(chip, DPLBASE,
1310 (u32)chip->posbuf.addr | ICH6_DPLBASE_ENABLE);
1311 }
1312
1313 /* set the interrupt enable bits in the descriptor control register */
1314 azx_sd_writel(azx_dev, SD_CTL,
1315 azx_sd_readl(azx_dev, SD_CTL) | SD_INT_MASK);
1316
1317 return 0;
1318 }
1319
1320 /*
1321 * Probe the given codec address
1322 */
1323 static int probe_codec(struct azx *chip, int addr)
1324 {
1325 unsigned int cmd = (addr << 28) | (AC_NODE_ROOT << 20) |
1326 (AC_VERB_PARAMETERS << 8) | AC_PAR_VENDOR_ID;
1327 unsigned int res;
1328
1329 mutex_lock(&chip->bus->cmd_mutex);
1330 chip->probing = 1;
1331 azx_send_cmd(chip->bus, cmd);
1332 res = azx_get_response(chip->bus, addr);
1333 chip->probing = 0;
1334 mutex_unlock(&chip->bus->cmd_mutex);
1335 if (res == -1)
1336 return -EIO;
1337 snd_printdd(SFX "codec #%d probed OK\n", addr);
1338 return 0;
1339 }
1340
1341 static int azx_attach_pcm_stream(struct hda_bus *bus, struct hda_codec *codec,
1342 struct hda_pcm *cpcm);
1343 static void azx_stop_chip(struct azx *chip);
1344
1345 static void azx_bus_reset(struct hda_bus *bus)
1346 {
1347 struct azx *chip = bus->private_data;
1348
1349 bus->in_reset = 1;
1350 azx_stop_chip(chip);
1351 azx_init_chip(chip);
1352 #ifdef CONFIG_PM
1353 if (chip->initialized) {
1354 int i;
1355
1356 for (i = 0; i < HDA_MAX_PCMS; i++)
1357 snd_pcm_suspend_all(chip->pcm[i]);
1358 snd_hda_suspend(chip->bus);
1359 snd_hda_resume(chip->bus);
1360 }
1361 #endif
1362 bus->in_reset = 0;
1363 }
1364
1365 /*
1366 * Codec initialization
1367 */
1368
1369 /* number of codec slots for each chipset: 0 = default slots (i.e. 4) */
1370 static unsigned int azx_max_codecs[AZX_NUM_DRIVERS] __devinitdata = {
1371 [AZX_DRIVER_NVIDIA] = 8,
1372 [AZX_DRIVER_TERA] = 1,
1373 };
1374
1375 static int __devinit azx_codec_create(struct azx *chip, const char *model)
1376 {
1377 struct hda_bus_template bus_temp;
1378 int c, codecs, err;
1379 int max_slots;
1380
1381 memset(&bus_temp, 0, sizeof(bus_temp));
1382 bus_temp.private_data = chip;
1383 bus_temp.modelname = model;
1384 bus_temp.pci = chip->pci;
1385 bus_temp.ops.command = azx_send_cmd;
1386 bus_temp.ops.get_response = azx_get_response;
1387 bus_temp.ops.attach_pcm = azx_attach_pcm_stream;
1388 bus_temp.ops.bus_reset = azx_bus_reset;
1389 #ifdef CONFIG_SND_HDA_POWER_SAVE
1390 bus_temp.power_save = &power_save;
1391 bus_temp.ops.pm_notify = azx_power_notify;
1392 #endif
1393
1394 err = snd_hda_bus_new(chip->card, &bus_temp, &chip->bus);
1395 if (err < 0)
1396 return err;
1397
1398 if (chip->driver_type == AZX_DRIVER_NVIDIA)
1399 chip->bus->needs_damn_long_delay = 1;
1400
1401 codecs = 0;
1402 max_slots = azx_max_codecs[chip->driver_type];
1403 if (!max_slots)
1404 max_slots = AZX_DEFAULT_CODECS;
1405
1406 /* First try to probe all given codec slots */
1407 for (c = 0; c < max_slots; c++) {
1408 if ((chip->codec_mask & (1 << c)) & chip->codec_probe_mask) {
1409 if (probe_codec(chip, c) < 0) {
1410 /* Some BIOSen give you wrong codec addresses
1411 * that don't exist
1412 */
1413 snd_printk(KERN_WARNING SFX
1414 "Codec #%d probe error; "
1415 "disabling it...\n", c);
1416 chip->codec_mask &= ~(1 << c);
1417 /* More badly, accessing to a non-existing
1418 * codec often screws up the controller chip,
1419 * and disturbs the further communications.
1420 * Thus if an error occurs during probing,
1421 * better to reset the controller chip to
1422 * get back to the sanity state.
1423 */
1424 azx_stop_chip(chip);
1425 azx_init_chip(chip);
1426 }
1427 }
1428 }
1429
1430 /* Then create codec instances */
1431 for (c = 0; c < max_slots; c++) {
1432 if ((chip->codec_mask & (1 << c)) & chip->codec_probe_mask) {
1433 struct hda_codec *codec;
1434 err = snd_hda_codec_new(chip->bus, c, &codec);
1435 if (err < 0)
1436 continue;
1437 codec->beep_mode = chip->beep_mode;
1438 codecs++;
1439 }
1440 }
1441 if (!codecs) {
1442 snd_printk(KERN_ERR SFX "no codecs initialized\n");
1443 return -ENXIO;
1444 }
1445 return 0;
1446 }
1447
1448 /* configure each codec instance */
1449 static int __devinit azx_codec_configure(struct azx *chip)
1450 {
1451 struct hda_codec *codec;
1452 list_for_each_entry(codec, &chip->bus->codec_list, list) {
1453 snd_hda_codec_configure(codec);
1454 }
1455 return 0;
1456 }
1457
1458
1459 /*
1460 * PCM support
1461 */
1462
1463 /* assign a stream for the PCM */
1464 static inline struct azx_dev *
1465 azx_assign_device(struct azx *chip, struct snd_pcm_substream *substream)
1466 {
1467 int dev, i, nums;
1468 struct azx_dev *res = NULL;
1469
1470 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
1471 dev = chip->playback_index_offset;
1472 nums = chip->playback_streams;
1473 } else {
1474 dev = chip->capture_index_offset;
1475 nums = chip->capture_streams;
1476 }
1477 for (i = 0; i < nums; i++, dev++)
1478 if (!chip->azx_dev[dev].opened) {
1479 res = &chip->azx_dev[dev];
1480 if (res->device == substream->pcm->device)
1481 break;
1482 }
1483 if (res) {
1484 res->opened = 1;
1485 res->device = substream->pcm->device;
1486 }
1487 return res;
1488 }
1489
1490 /* release the assigned stream */
1491 static inline void azx_release_device(struct azx_dev *azx_dev)
1492 {
1493 azx_dev->opened = 0;
1494 }
1495
1496 static struct snd_pcm_hardware azx_pcm_hw = {
1497 .info = (SNDRV_PCM_INFO_MMAP |
1498 SNDRV_PCM_INFO_INTERLEAVED |
1499 SNDRV_PCM_INFO_BLOCK_TRANSFER |
1500 SNDRV_PCM_INFO_MMAP_VALID |
1501 /* No full-resume yet implemented */
1502 /* SNDRV_PCM_INFO_RESUME |*/
1503 SNDRV_PCM_INFO_PAUSE |
1504 SNDRV_PCM_INFO_SYNC_START),
1505 .formats = SNDRV_PCM_FMTBIT_S16_LE,
1506 .rates = SNDRV_PCM_RATE_48000,
1507 .rate_min = 48000,
1508 .rate_max = 48000,
1509 .channels_min = 2,
1510 .channels_max = 2,
1511 .buffer_bytes_max = AZX_MAX_BUF_SIZE,
1512 .period_bytes_min = 128,
1513 .period_bytes_max = AZX_MAX_BUF_SIZE / 2,
1514 .periods_min = 2,
1515 .periods_max = AZX_MAX_FRAG,
1516 .fifo_size = 0,
1517 };
1518
1519 struct azx_pcm {
1520 struct azx *chip;
1521 struct hda_codec *codec;
1522 struct hda_pcm_stream *hinfo[2];
1523 };
1524
1525 static int azx_pcm_open(struct snd_pcm_substream *substream)
1526 {
1527 struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
1528 struct hda_pcm_stream *hinfo = apcm->hinfo[substream->stream];
1529 struct azx *chip = apcm->chip;
1530 struct azx_dev *azx_dev;
1531 struct snd_pcm_runtime *runtime = substream->runtime;
1532 unsigned long flags;
1533 int err;
1534
1535 mutex_lock(&chip->open_mutex);
1536 azx_dev = azx_assign_device(chip, substream);
1537 if (azx_dev == NULL) {
1538 mutex_unlock(&chip->open_mutex);
1539 return -EBUSY;
1540 }
1541 runtime->hw = azx_pcm_hw;
1542 runtime->hw.channels_min = hinfo->channels_min;
1543 runtime->hw.channels_max = hinfo->channels_max;
1544 runtime->hw.formats = hinfo->formats;
1545 runtime->hw.rates = hinfo->rates;
1546 snd_pcm_limit_hw_rates(runtime);
1547 snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS);
1548 snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_BUFFER_BYTES,
1549 128);
1550 snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES,
1551 128);
1552 snd_hda_power_up(apcm->codec);
1553 err = hinfo->ops.open(hinfo, apcm->codec, substream);
1554 if (err < 0) {
1555 azx_release_device(azx_dev);
1556 snd_hda_power_down(apcm->codec);
1557 mutex_unlock(&chip->open_mutex);
1558 return err;
1559 }
1560 snd_pcm_limit_hw_rates(runtime);
1561 /* sanity check */
1562 if (snd_BUG_ON(!runtime->hw.channels_min) ||
1563 snd_BUG_ON(!runtime->hw.channels_max) ||
1564 snd_BUG_ON(!runtime->hw.formats) ||
1565 snd_BUG_ON(!runtime->hw.rates)) {
1566 azx_release_device(azx_dev);
1567 hinfo->ops.close(hinfo, apcm->codec, substream);
1568 snd_hda_power_down(apcm->codec);
1569 mutex_unlock(&chip->open_mutex);
1570 return -EINVAL;
1571 }
1572 spin_lock_irqsave(&chip->reg_lock, flags);
1573 azx_dev->substream = substream;
1574 azx_dev->running = 0;
1575 spin_unlock_irqrestore(&chip->reg_lock, flags);
1576
1577 runtime->private_data = azx_dev;
1578 snd_pcm_set_sync(substream);
1579 mutex_unlock(&chip->open_mutex);
1580 return 0;
1581 }
1582
1583 static int azx_pcm_close(struct snd_pcm_substream *substream)
1584 {
1585 struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
1586 struct hda_pcm_stream *hinfo = apcm->hinfo[substream->stream];
1587 struct azx *chip = apcm->chip;
1588 struct azx_dev *azx_dev = get_azx_dev(substream);
1589 unsigned long flags;
1590
1591 mutex_lock(&chip->open_mutex);
1592 spin_lock_irqsave(&chip->reg_lock, flags);
1593 azx_dev->substream = NULL;
1594 azx_dev->running = 0;
1595 spin_unlock_irqrestore(&chip->reg_lock, flags);
1596 azx_release_device(azx_dev);
1597 hinfo->ops.close(hinfo, apcm->codec, substream);
1598 snd_hda_power_down(apcm->codec);
1599 mutex_unlock(&chip->open_mutex);
1600 return 0;
1601 }
1602
1603 static int azx_pcm_hw_params(struct snd_pcm_substream *substream,
1604 struct snd_pcm_hw_params *hw_params)
1605 {
1606 struct azx_dev *azx_dev = get_azx_dev(substream);
1607
1608 azx_dev->bufsize = 0;
1609 azx_dev->period_bytes = 0;
1610 azx_dev->format_val = 0;
1611 return snd_pcm_lib_malloc_pages(substream,
1612 params_buffer_bytes(hw_params));
1613 }
1614
1615 static int azx_pcm_hw_free(struct snd_pcm_substream *substream)
1616 {
1617 struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
1618 struct azx_dev *azx_dev = get_azx_dev(substream);
1619 struct hda_pcm_stream *hinfo = apcm->hinfo[substream->stream];
1620
1621 /* reset BDL address */
1622 azx_sd_writel(azx_dev, SD_BDLPL, 0);
1623 azx_sd_writel(azx_dev, SD_BDLPU, 0);
1624 azx_sd_writel(azx_dev, SD_CTL, 0);
1625 azx_dev->bufsize = 0;
1626 azx_dev->period_bytes = 0;
1627 azx_dev->format_val = 0;
1628
1629 hinfo->ops.cleanup(hinfo, apcm->codec, substream);
1630
1631 return snd_pcm_lib_free_pages(substream);
1632 }
1633
1634 static int azx_pcm_prepare(struct snd_pcm_substream *substream)
1635 {
1636 struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
1637 struct azx *chip = apcm->chip;
1638 struct azx_dev *azx_dev = get_azx_dev(substream);
1639 struct hda_pcm_stream *hinfo = apcm->hinfo[substream->stream];
1640 struct snd_pcm_runtime *runtime = substream->runtime;
1641 unsigned int bufsize, period_bytes, format_val;
1642 int err;
1643
1644 azx_stream_reset(chip, azx_dev);
1645 format_val = snd_hda_calc_stream_format(runtime->rate,
1646 runtime->channels,
1647 runtime->format,
1648 hinfo->maxbps);
1649 if (!format_val) {
1650 snd_printk(KERN_ERR SFX
1651 "invalid format_val, rate=%d, ch=%d, format=%d\n",
1652 runtime->rate, runtime->channels, runtime->format);
1653 return -EINVAL;
1654 }
1655
1656 bufsize = snd_pcm_lib_buffer_bytes(substream);
1657 period_bytes = snd_pcm_lib_period_bytes(substream);
1658
1659 snd_printdd(SFX "azx_pcm_prepare: bufsize=0x%x, format=0x%x\n",
1660 bufsize, format_val);
1661
1662 if (bufsize != azx_dev->bufsize ||
1663 period_bytes != azx_dev->period_bytes ||
1664 format_val != azx_dev->format_val) {
1665 azx_dev->bufsize = bufsize;
1666 azx_dev->period_bytes = period_bytes;
1667 azx_dev->format_val = format_val;
1668 err = azx_setup_periods(chip, substream, azx_dev);
1669 if (err < 0)
1670 return err;
1671 }
1672
1673 azx_dev->min_jiffies = (runtime->period_size * HZ) /
1674 (runtime->rate * 2);
1675 azx_setup_controller(chip, azx_dev);
1676 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
1677 azx_dev->fifo_size = azx_sd_readw(azx_dev, SD_FIFOSIZE) + 1;
1678 else
1679 azx_dev->fifo_size = 0;
1680
1681 return hinfo->ops.prepare(hinfo, apcm->codec, azx_dev->stream_tag,
1682 azx_dev->format_val, substream);
1683 }
1684
1685 static int azx_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
1686 {
1687 struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
1688 struct azx *chip = apcm->chip;
1689 struct azx_dev *azx_dev;
1690 struct snd_pcm_substream *s;
1691 int rstart = 0, start, nsync = 0, sbits = 0;
1692 int nwait, timeout;
1693
1694 switch (cmd) {
1695 case SNDRV_PCM_TRIGGER_START:
1696 rstart = 1;
1697 case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
1698 case SNDRV_PCM_TRIGGER_RESUME:
1699 start = 1;
1700 break;
1701 case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
1702 case SNDRV_PCM_TRIGGER_SUSPEND:
1703 case SNDRV_PCM_TRIGGER_STOP:
1704 start = 0;
1705 break;
1706 default:
1707 return -EINVAL;
1708 }
1709
1710 snd_pcm_group_for_each_entry(s, substream) {
1711 if (s->pcm->card != substream->pcm->card)
1712 continue;
1713 azx_dev = get_azx_dev(s);
1714 sbits |= 1 << azx_dev->index;
1715 nsync++;
1716 snd_pcm_trigger_done(s, substream);
1717 }
1718
1719 spin_lock(&chip->reg_lock);
1720 if (nsync > 1) {
1721 /* first, set SYNC bits of corresponding streams */
1722 azx_writel(chip, SYNC, azx_readl(chip, SYNC) | sbits);
1723 }
1724 snd_pcm_group_for_each_entry(s, substream) {
1725 if (s->pcm->card != substream->pcm->card)
1726 continue;
1727 azx_dev = get_azx_dev(s);
1728 if (rstart) {
1729 azx_dev->start_flag = 1;
1730 azx_dev->start_jiffies = jiffies + azx_dev->min_jiffies;
1731 }
1732 if (start)
1733 azx_stream_start(chip, azx_dev);
1734 else
1735 azx_stream_stop(chip, azx_dev);
1736 azx_dev->running = start;
1737 }
1738 spin_unlock(&chip->reg_lock);
1739 if (start) {
1740 if (nsync == 1)
1741 return 0;
1742 /* wait until all FIFOs get ready */
1743 for (timeout = 5000; timeout; timeout--) {
1744 nwait = 0;
1745 snd_pcm_group_for_each_entry(s, substream) {
1746 if (s->pcm->card != substream->pcm->card)
1747 continue;
1748 azx_dev = get_azx_dev(s);
1749 if (!(azx_sd_readb(azx_dev, SD_STS) &
1750 SD_STS_FIFO_READY))
1751 nwait++;
1752 }
1753 if (!nwait)
1754 break;
1755 cpu_relax();
1756 }
1757 } else {
1758 /* wait until all RUN bits are cleared */
1759 for (timeout = 5000; timeout; timeout--) {
1760 nwait = 0;
1761 snd_pcm_group_for_each_entry(s, substream) {
1762 if (s->pcm->card != substream->pcm->card)
1763 continue;
1764 azx_dev = get_azx_dev(s);
1765 if (azx_sd_readb(azx_dev, SD_CTL) &
1766 SD_CTL_DMA_START)
1767 nwait++;
1768 }
1769 if (!nwait)
1770 break;
1771 cpu_relax();
1772 }
1773 }
1774 if (nsync > 1) {
1775 spin_lock(&chip->reg_lock);
1776 /* reset SYNC bits */
1777 azx_writel(chip, SYNC, azx_readl(chip, SYNC) & ~sbits);
1778 spin_unlock(&chip->reg_lock);
1779 }
1780 return 0;
1781 }
1782
1783 /* get the current DMA position with correction on VIA chips */
1784 static unsigned int azx_via_get_position(struct azx *chip,
1785 struct azx_dev *azx_dev)
1786 {
1787 unsigned int link_pos, mini_pos, bound_pos;
1788 unsigned int mod_link_pos, mod_dma_pos, mod_mini_pos;
1789 unsigned int fifo_size;
1790
1791 link_pos = azx_sd_readl(azx_dev, SD_LPIB);
1792 if (azx_dev->index >= 4) {
1793 /* Playback, no problem using link position */
1794 return link_pos;
1795 }
1796
1797 /* Capture */
1798 /* For new chipset,
1799 * use mod to get the DMA position just like old chipset
1800 */
1801 mod_dma_pos = le32_to_cpu(*azx_dev->posbuf);
1802 mod_dma_pos %= azx_dev->period_bytes;
1803
1804 /* azx_dev->fifo_size can't get FIFO size of in stream.
1805 * Get from base address + offset.
1806 */
1807 fifo_size = readw(chip->remap_addr + VIA_IN_STREAM0_FIFO_SIZE_OFFSET);
1808
1809 if (azx_dev->insufficient) {
1810 /* Link position never gather than FIFO size */
1811 if (link_pos <= fifo_size)
1812 return 0;
1813
1814 azx_dev->insufficient = 0;
1815 }
1816
1817 if (link_pos <= fifo_size)
1818 mini_pos = azx_dev->bufsize + link_pos - fifo_size;
1819 else
1820 mini_pos = link_pos - fifo_size;
1821
1822 /* Find nearest previous boudary */
1823 mod_mini_pos = mini_pos % azx_dev->period_bytes;
1824 mod_link_pos = link_pos % azx_dev->period_bytes;
1825 if (mod_link_pos >= fifo_size)
1826 bound_pos = link_pos - mod_link_pos;
1827 else if (mod_dma_pos >= mod_mini_pos)
1828 bound_pos = mini_pos - mod_mini_pos;
1829 else {
1830 bound_pos = mini_pos - mod_mini_pos + azx_dev->period_bytes;
1831 if (bound_pos >= azx_dev->bufsize)
1832 bound_pos = 0;
1833 }
1834
1835 /* Calculate real DMA position we want */
1836 return bound_pos + mod_dma_pos;
1837 }
1838
1839 static unsigned int azx_get_position(struct azx *chip,
1840 struct azx_dev *azx_dev)
1841 {
1842 unsigned int pos;
1843
1844 if (chip->via_dmapos_patch)
1845 pos = azx_via_get_position(chip, azx_dev);
1846 else if (chip->position_fix == POS_FIX_POSBUF ||
1847 chip->position_fix == POS_FIX_AUTO) {
1848 /* use the position buffer */
1849 pos = le32_to_cpu(*azx_dev->posbuf);
1850 } else {
1851 /* read LPIB */
1852 pos = azx_sd_readl(azx_dev, SD_LPIB);
1853 }
1854 if (pos >= azx_dev->bufsize)
1855 pos = 0;
1856 return pos;
1857 }
1858
1859 static snd_pcm_uframes_t azx_pcm_pointer(struct snd_pcm_substream *substream)
1860 {
1861 struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
1862 struct azx *chip = apcm->chip;
1863 struct azx_dev *azx_dev = get_azx_dev(substream);
1864 return bytes_to_frames(substream->runtime,
1865 azx_get_position(chip, azx_dev));
1866 }
1867
1868 /*
1869 * Check whether the current DMA position is acceptable for updating
1870 * periods. Returns non-zero if it's OK.
1871 *
1872 * Many HD-audio controllers appear pretty inaccurate about
1873 * the update-IRQ timing. The IRQ is issued before actually the
1874 * data is processed. So, we need to process it afterwords in a
1875 * workqueue.
1876 */
1877 static int azx_position_ok(struct azx *chip, struct azx_dev *azx_dev)
1878 {
1879 unsigned int pos;
1880
1881 if (azx_dev->start_flag &&
1882 time_before_eq(jiffies, azx_dev->start_jiffies))
1883 return -1; /* bogus (too early) interrupt */
1884 azx_dev->start_flag = 0;
1885
1886 pos = azx_get_position(chip, azx_dev);
1887 if (chip->position_fix == POS_FIX_AUTO) {
1888 if (!pos) {
1889 printk(KERN_WARNING
1890 "hda-intel: Invalid position buffer, "
1891 "using LPIB read method instead.\n");
1892 chip->position_fix = POS_FIX_LPIB;
1893 pos = azx_get_position(chip, azx_dev);
1894 } else
1895 chip->position_fix = POS_FIX_POSBUF;
1896 }
1897
1898 if (!bdl_pos_adj[chip->dev_index])
1899 return 1; /* no delayed ack */
1900 if (WARN_ONCE(!azx_dev->period_bytes,
1901 "hda-intel: zero azx_dev->period_bytes"))
1902 return 0; /* this shouldn't happen! */
1903 if (pos % azx_dev->period_bytes > azx_dev->period_bytes / 2)
1904 return 0; /* NG - it's below the period boundary */
1905 return 1; /* OK, it's fine */
1906 }
1907
1908 /*
1909 * The work for pending PCM period updates.
1910 */
1911 static void azx_irq_pending_work(struct work_struct *work)
1912 {
1913 struct azx *chip = container_of(work, struct azx, irq_pending_work);
1914 int i, pending;
1915
1916 if (!chip->irq_pending_warned) {
1917 printk(KERN_WARNING
1918 "hda-intel: IRQ timing workaround is activated "
1919 "for card #%d. Suggest a bigger bdl_pos_adj.\n",
1920 chip->card->number);
1921 chip->irq_pending_warned = 1;
1922 }
1923
1924 for (;;) {
1925 pending = 0;
1926 spin_lock_irq(&chip->reg_lock);
1927 for (i = 0; i < chip->num_streams; i++) {
1928 struct azx_dev *azx_dev = &chip->azx_dev[i];
1929 if (!azx_dev->irq_pending ||
1930 !azx_dev->substream ||
1931 !azx_dev->running)
1932 continue;
1933 if (azx_position_ok(chip, azx_dev)) {
1934 azx_dev->irq_pending = 0;
1935 spin_unlock(&chip->reg_lock);
1936 snd_pcm_period_elapsed(azx_dev->substream);
1937 spin_lock(&chip->reg_lock);
1938 } else
1939 pending++;
1940 }
1941 spin_unlock_irq(&chip->reg_lock);
1942 if (!pending)
1943 return;
1944 cond_resched();
1945 }
1946 }
1947
1948 /* clear irq_pending flags and assure no on-going workq */
1949 static void azx_clear_irq_pending(struct azx *chip)
1950 {
1951 int i;
1952
1953 spin_lock_irq(&chip->reg_lock);
1954 for (i = 0; i < chip->num_streams; i++)
1955 chip->azx_dev[i].irq_pending = 0;
1956 spin_unlock_irq(&chip->reg_lock);
1957 }
1958
1959 static struct snd_pcm_ops azx_pcm_ops = {
1960 .open = azx_pcm_open,
1961 .close = azx_pcm_close,
1962 .ioctl = snd_pcm_lib_ioctl,
1963 .hw_params = azx_pcm_hw_params,
1964 .hw_free = azx_pcm_hw_free,
1965 .prepare = azx_pcm_prepare,
1966 .trigger = azx_pcm_trigger,
1967 .pointer = azx_pcm_pointer,
1968 .page = snd_pcm_sgbuf_ops_page,
1969 };
1970
1971 static void azx_pcm_free(struct snd_pcm *pcm)
1972 {
1973 struct azx_pcm *apcm = pcm->private_data;
1974 if (apcm) {
1975 apcm->chip->pcm[pcm->device] = NULL;
1976 kfree(apcm);
1977 }
1978 }
1979
1980 static int
1981 azx_attach_pcm_stream(struct hda_bus *bus, struct hda_codec *codec,
1982 struct hda_pcm *cpcm)
1983 {
1984 struct azx *chip = bus->private_data;
1985 struct snd_pcm *pcm;
1986 struct azx_pcm *apcm;
1987 int pcm_dev = cpcm->device;
1988 int s, err;
1989
1990 if (pcm_dev >= HDA_MAX_PCMS) {
1991 snd_printk(KERN_ERR SFX "Invalid PCM device number %d\n",
1992 pcm_dev);
1993 return -EINVAL;
1994 }
1995 if (chip->pcm[pcm_dev]) {
1996 snd_printk(KERN_ERR SFX "PCM %d already exists\n", pcm_dev);
1997 return -EBUSY;
1998 }
1999 err = snd_pcm_new(chip->card, cpcm->name, pcm_dev,
2000 cpcm->stream[SNDRV_PCM_STREAM_PLAYBACK].substreams,
2001 cpcm->stream[SNDRV_PCM_STREAM_CAPTURE].substreams,
2002 &pcm);
2003 if (err < 0)
2004 return err;
2005 strlcpy(pcm->name, cpcm->name, sizeof(pcm->name));
2006 apcm = kzalloc(sizeof(*apcm), GFP_KERNEL);
2007 if (apcm == NULL)
2008 return -ENOMEM;
2009 apcm->chip = chip;
2010 apcm->codec = codec;
2011 pcm->private_data = apcm;
2012 pcm->private_free = azx_pcm_free;
2013 if (cpcm->pcm_type == HDA_PCM_TYPE_MODEM)
2014 pcm->dev_class = SNDRV_PCM_CLASS_MODEM;
2015 chip->pcm[pcm_dev] = pcm;
2016 cpcm->pcm = pcm;
2017 for (s = 0; s < 2; s++) {
2018 apcm->hinfo[s] = &cpcm->stream[s];
2019 if (cpcm->stream[s].substreams)
2020 snd_pcm_set_ops(pcm, s, &azx_pcm_ops);
2021 }
2022 /* buffer pre-allocation */
2023 snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
2024 snd_dma_pci_data(chip->pci),
2025 1024 * 64, 32 * 1024 * 1024);
2026 return 0;
2027 }
2028
2029 /*
2030 * mixer creation - all stuff is implemented in hda module
2031 */
2032 static int __devinit azx_mixer_create(struct azx *chip)
2033 {
2034 return snd_hda_build_controls(chip->bus);
2035 }
2036
2037
2038 /*
2039 * initialize SD streams
2040 */
2041 static int __devinit azx_init_stream(struct azx *chip)
2042 {
2043 int i;
2044
2045 /* initialize each stream (aka device)
2046 * assign the starting bdl address to each stream (device)
2047 * and initialize
2048 */
2049 for (i = 0; i < chip->num_streams; i++) {
2050 struct azx_dev *azx_dev = &chip->azx_dev[i];
2051 azx_dev->posbuf = (u32 __iomem *)(chip->posbuf.area + i * 8);
2052 /* offset: SDI0=0x80, SDI1=0xa0, ... SDO3=0x160 */
2053 azx_dev->sd_addr = chip->remap_addr + (0x20 * i + 0x80);
2054 /* int mask: SDI0=0x01, SDI1=0x02, ... SDO3=0x80 */
2055 azx_dev->sd_int_sta_mask = 1 << i;
2056 /* stream tag: must be non-zero and unique */
2057 azx_dev->index = i;
2058 azx_dev->stream_tag = i + 1;
2059 }
2060
2061 return 0;
2062 }
2063
2064 static int azx_acquire_irq(struct azx *chip, int do_disconnect)
2065 {
2066 if (request_irq(chip->pci->irq, azx_interrupt,
2067 chip->msi ? 0 : IRQF_SHARED,
2068 "hda_intel", chip)) {
2069 printk(KERN_ERR "hda-intel: unable to grab IRQ %d, "
2070 "disabling device\n", chip->pci->irq);
2071 if (do_disconnect)
2072 snd_card_disconnect(chip->card);
2073 return -1;
2074 }
2075 chip->irq = chip->pci->irq;
2076 pci_intx(chip->pci, !chip->msi);
2077 return 0;
2078 }
2079
2080
2081 static void azx_stop_chip(struct azx *chip)
2082 {
2083 if (!chip->initialized)
2084 return;
2085
2086 /* disable interrupts */
2087 azx_int_disable(chip);
2088 azx_int_clear(chip);
2089
2090 /* disable CORB/RIRB */
2091 azx_free_cmd_io(chip);
2092
2093 /* disable position buffer */
2094 azx_writel(chip, DPLBASE, 0);
2095 azx_writel(chip, DPUBASE, 0);
2096
2097 chip->initialized = 0;
2098 }
2099
2100 #ifdef CONFIG_SND_HDA_POWER_SAVE
2101 /* power-up/down the controller */
2102 static void azx_power_notify(struct hda_bus *bus)
2103 {
2104 struct azx *chip = bus->private_data;
2105 struct hda_codec *c;
2106 int power_on = 0;
2107
2108 list_for_each_entry(c, &bus->codec_list, list) {
2109 if (c->power_on) {
2110 power_on = 1;
2111 break;
2112 }
2113 }
2114 if (power_on)
2115 azx_init_chip(chip);
2116 else if (chip->running && power_save_controller &&
2117 !bus->power_keep_link_on)
2118 azx_stop_chip(chip);
2119 }
2120 #endif /* CONFIG_SND_HDA_POWER_SAVE */
2121
2122 #ifdef CONFIG_PM
2123 /*
2124 * power management
2125 */
2126
2127 static int snd_hda_codecs_inuse(struct hda_bus *bus)
2128 {
2129 struct hda_codec *codec;
2130
2131 list_for_each_entry(codec, &bus->codec_list, list) {
2132 if (snd_hda_codec_needs_resume(codec))
2133 return 1;
2134 }
2135 return 0;
2136 }
2137
2138 static int azx_suspend(struct pci_dev *pci, pm_message_t state)
2139 {
2140 struct snd_card *card = pci_get_drvdata(pci);
2141 struct azx *chip = card->private_data;
2142 int i;
2143
2144 snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
2145 azx_clear_irq_pending(chip);
2146 for (i = 0; i < HDA_MAX_PCMS; i++)
2147 snd_pcm_suspend_all(chip->pcm[i]);
2148 if (chip->initialized)
2149 snd_hda_suspend(chip->bus);
2150 azx_stop_chip(chip);
2151 if (chip->irq >= 0) {
2152 free_irq(chip->irq, chip);
2153 chip->irq = -1;
2154 }
2155 if (chip->msi)
2156 pci_disable_msi(chip->pci);
2157 pci_disable_device(pci);
2158 pci_save_state(pci);
2159 pci_set_power_state(pci, pci_choose_state(pci, state));
2160 return 0;
2161 }
2162
2163 static int azx_resume(struct pci_dev *pci)
2164 {
2165 struct snd_card *card = pci_get_drvdata(pci);
2166 struct azx *chip = card->private_data;
2167
2168 pci_set_power_state(pci, PCI_D0);
2169 pci_restore_state(pci);
2170 if (pci_enable_device(pci) < 0) {
2171 printk(KERN_ERR "hda-intel: pci_enable_device failed, "
2172 "disabling device\n");
2173 snd_card_disconnect(card);
2174 return -EIO;
2175 }
2176 pci_set_master(pci);
2177 if (chip->msi)
2178 if (pci_enable_msi(pci) < 0)
2179 chip->msi = 0;
2180 if (azx_acquire_irq(chip, 1) < 0)
2181 return -EIO;
2182 azx_init_pci(chip);
2183
2184 if (snd_hda_codecs_inuse(chip->bus))
2185 azx_init_chip(chip);
2186
2187 snd_hda_resume(chip->bus);
2188 snd_power_change_state(card, SNDRV_CTL_POWER_D0);
2189 return 0;
2190 }
2191 #endif /* CONFIG_PM */
2192
2193
2194 /*
2195 * reboot notifier for hang-up problem at power-down
2196 */
2197 static int azx_halt(struct notifier_block *nb, unsigned long event, void *buf)
2198 {
2199 struct azx *chip = container_of(nb, struct azx, reboot_notifier);
2200 snd_hda_bus_reboot_notify(chip->bus);
2201 azx_stop_chip(chip);
2202 return NOTIFY_OK;
2203 }
2204
2205 static void azx_notifier_register(struct azx *chip)
2206 {
2207 chip->reboot_notifier.notifier_call = azx_halt;
2208 register_reboot_notifier(&chip->reboot_notifier);
2209 }
2210
2211 static void azx_notifier_unregister(struct azx *chip)
2212 {
2213 if (chip->reboot_notifier.notifier_call)
2214 unregister_reboot_notifier(&chip->reboot_notifier);
2215 }
2216
2217 /*
2218 * destructor
2219 */
2220 static int azx_free(struct azx *chip)
2221 {
2222 int i;
2223
2224 azx_notifier_unregister(chip);
2225
2226 if (chip->initialized) {
2227 azx_clear_irq_pending(chip);
2228 for (i = 0; i < chip->num_streams; i++)
2229 azx_stream_stop(chip, &chip->azx_dev[i]);
2230 azx_stop_chip(chip);
2231 }
2232
2233 if (chip->irq >= 0)
2234 free_irq(chip->irq, (void*)chip);
2235 if (chip->msi)
2236 pci_disable_msi(chip->pci);
2237 if (chip->remap_addr)
2238 iounmap(chip->remap_addr);
2239
2240 if (chip->azx_dev) {
2241 for (i = 0; i < chip->num_streams; i++)
2242 if (chip->azx_dev[i].bdl.area)
2243 snd_dma_free_pages(&chip->azx_dev[i].bdl);
2244 }
2245 if (chip->rb.area)
2246 snd_dma_free_pages(&chip->rb);
2247 if (chip->posbuf.area)
2248 snd_dma_free_pages(&chip->posbuf);
2249 pci_release_regions(chip->pci);
2250 pci_disable_device(chip->pci);
2251 kfree(chip->azx_dev);
2252 kfree(chip);
2253
2254 return 0;
2255 }
2256
2257 static int azx_dev_free(struct snd_device *device)
2258 {
2259 return azx_free(device->device_data);
2260 }
2261
2262 /*
2263 * white/black-listing for position_fix
2264 */
2265 static struct snd_pci_quirk position_fix_list[] __devinitdata = {
2266 SND_PCI_QUIRK(0x1028, 0x01cc, "Dell D820", POS_FIX_LPIB),
2267 SND_PCI_QUIRK(0x1028, 0x01de, "Dell Precision 390", POS_FIX_LPIB),
2268 SND_PCI_QUIRK(0x1028, 0x01f6, "Dell Latitude 131L", POS_FIX_LPIB),
2269 SND_PCI_QUIRK(0x103c, 0x306d, "HP dv3", POS_FIX_LPIB),
2270 SND_PCI_QUIRK(0x1106, 0x3288, "ASUS M2V-MX SE", POS_FIX_LPIB),
2271 SND_PCI_QUIRK(0x1043, 0x813d, "ASUS P5AD2", POS_FIX_LPIB),
2272 SND_PCI_QUIRK(0x1462, 0x1002, "MSI Wind U115", POS_FIX_LPIB),
2273 SND_PCI_QUIRK(0x1565, 0x820f, "Biostar Microtech", POS_FIX_LPIB),
2274 {}
2275 };
2276
2277 static int __devinit check_position_fix(struct azx *chip, int fix)
2278 {
2279 const struct snd_pci_quirk *q;
2280
2281 switch (fix) {
2282 case POS_FIX_LPIB:
2283 case POS_FIX_POSBUF:
2284 return fix;
2285 }
2286
2287 /* Check VIA/ATI HD Audio Controller exist */
2288 switch (chip->driver_type) {
2289 case AZX_DRIVER_VIA:
2290 case AZX_DRIVER_ATI:
2291 chip->via_dmapos_patch = 1;
2292 /* Use link position directly, avoid any transfer problem. */
2293 return POS_FIX_LPIB;
2294 }
2295 chip->via_dmapos_patch = 0;
2296
2297 q = snd_pci_quirk_lookup(chip->pci, position_fix_list);
2298 if (q) {
2299 printk(KERN_INFO
2300 "hda_intel: position_fix set to %d "
2301 "for device %04x:%04x\n",
2302 q->value, q->subvendor, q->subdevice);
2303 return q->value;
2304 }
2305 return POS_FIX_AUTO;
2306 }
2307
2308 /*
2309 * black-lists for probe_mask
2310 */
2311 static struct snd_pci_quirk probe_mask_list[] __devinitdata = {
2312 /* Thinkpad often breaks the controller communication when accessing
2313 * to the non-working (or non-existing) modem codec slot.
2314 */
2315 SND_PCI_QUIRK(0x1014, 0x05b7, "Thinkpad Z60", 0x01),
2316 SND_PCI_QUIRK(0x17aa, 0x2010, "Thinkpad X/T/R60", 0x01),
2317 SND_PCI_QUIRK(0x17aa, 0x20ac, "Thinkpad X/T/R61", 0x01),
2318 /* broken BIOS */
2319 SND_PCI_QUIRK(0x1028, 0x20ac, "Dell Studio Desktop", 0x01),
2320 /* including bogus ALC268 in slot#2 that conflicts with ALC888 */
2321 SND_PCI_QUIRK(0x17c0, 0x4085, "Medion MD96630", 0x01),
2322 /* forced codec slots */
2323 SND_PCI_QUIRK(0x1043, 0x1262, "ASUS W5Fm", 0x103),
2324 SND_PCI_QUIRK(0x1046, 0x1262, "ASUS W5F", 0x103),
2325 {}
2326 };
2327
2328 #define AZX_FORCE_CODEC_MASK 0x100
2329
2330 static void __devinit check_probe_mask(struct azx *chip, int dev)
2331 {
2332 const struct snd_pci_quirk *q;
2333
2334 chip->codec_probe_mask = probe_mask[dev];
2335 if (chip->codec_probe_mask == -1) {
2336 q = snd_pci_quirk_lookup(chip->pci, probe_mask_list);
2337 if (q) {
2338 printk(KERN_INFO
2339 "hda_intel: probe_mask set to 0x%x "
2340 "for device %04x:%04x\n",
2341 q->value, q->subvendor, q->subdevice);
2342 chip->codec_probe_mask = q->value;
2343 }
2344 }
2345
2346 /* check forced option */
2347 if (chip->codec_probe_mask != -1 &&
2348 (chip->codec_probe_mask & AZX_FORCE_CODEC_MASK)) {
2349 chip->codec_mask = chip->codec_probe_mask & 0xff;
2350 printk(KERN_INFO "hda_intel: codec_mask forced to 0x%x\n",
2351 chip->codec_mask);
2352 }
2353 }
2354
2355 /*
2356 * white/black-list for enable_msi
2357 */
2358 static struct snd_pci_quirk msi_black_list[] __devinitdata = {
2359 SND_PCI_QUIRK(0x1043, 0x81f2, "ASUS", 0), /* Athlon64 X2 + nvidia */
2360 SND_PCI_QUIRK(0x1043, 0x81f6, "ASUS", 0), /* nvidia */
2361 SND_PCI_QUIRK(0x1043, 0x822d, "ASUS", 0), /* Athlon64 X2 + nvidia MCP55 */
2362 SND_PCI_QUIRK(0x1849, 0x0888, "ASRock", 0), /* Athlon64 X2 + nvidia */
2363 {}
2364 };
2365
2366 static void __devinit check_msi(struct azx *chip)
2367 {
2368 const struct snd_pci_quirk *q;
2369
2370 if (enable_msi >= 0) {
2371 chip->msi = !!enable_msi;
2372 return;
2373 }
2374 chip->msi = 1; /* enable MSI as default */
2375 q = snd_pci_quirk_lookup(chip->pci, msi_black_list);
2376 if (q) {
2377 printk(KERN_INFO
2378 "hda_intel: msi for device %04x:%04x set to %d\n",
2379 q->subvendor, q->subdevice, q->value);
2380 chip->msi = q->value;
2381 }
2382 }
2383
2384
2385 /*
2386 * constructor
2387 */
2388 static int __devinit azx_create(struct snd_card *card, struct pci_dev *pci,
2389 int dev, int driver_type,
2390 struct azx **rchip)
2391 {
2392 struct azx *chip;
2393 int i, err;
2394 unsigned short gcap;
2395 static struct snd_device_ops ops = {
2396 .dev_free = azx_dev_free,
2397 };
2398
2399 *rchip = NULL;
2400
2401 err = pci_enable_device(pci);
2402 if (err < 0)
2403 return err;
2404
2405 chip = kzalloc(sizeof(*chip), GFP_KERNEL);
2406 if (!chip) {
2407 snd_printk(KERN_ERR SFX "cannot allocate chip\n");
2408 pci_disable_device(pci);
2409 return -ENOMEM;
2410 }
2411
2412 spin_lock_init(&chip->reg_lock);
2413 mutex_init(&chip->open_mutex);
2414 chip->card = card;
2415 chip->pci = pci;
2416 chip->irq = -1;
2417 chip->driver_type = driver_type;
2418 check_msi(chip);
2419 chip->dev_index = dev;
2420 INIT_WORK(&chip->irq_pending_work, azx_irq_pending_work);
2421
2422 chip->position_fix = check_position_fix(chip, position_fix[dev]);
2423 check_probe_mask(chip, dev);
2424
2425 chip->single_cmd = single_cmd;
2426
2427 if (bdl_pos_adj[dev] < 0) {
2428 switch (chip->driver_type) {
2429 case AZX_DRIVER_ICH:
2430 case AZX_DRIVER_PCH:
2431 bdl_pos_adj[dev] = 1;
2432 break;
2433 default:
2434 bdl_pos_adj[dev] = 32;
2435 break;
2436 }
2437 }
2438
2439 #if BITS_PER_LONG != 64
2440 /* Fix up base address on ULI M5461 */
2441 if (chip->driver_type == AZX_DRIVER_ULI) {
2442 u16 tmp3;
2443 pci_read_config_word(pci, 0x40, &tmp3);
2444 pci_write_config_word(pci, 0x40, tmp3 | 0x10);
2445 pci_write_config_dword(pci, PCI_BASE_ADDRESS_1, 0);
2446 }
2447 #endif
2448
2449 err = pci_request_regions(pci, "ICH HD audio");
2450 if (err < 0) {
2451 kfree(chip);
2452 pci_disable_device(pci);
2453 return err;
2454 }
2455
2456 chip->addr = pci_resource_start(pci, 0);
2457 chip->remap_addr = pci_ioremap_bar(pci, 0);
2458 if (chip->remap_addr == NULL) {
2459 snd_printk(KERN_ERR SFX "ioremap error\n");
2460 err = -ENXIO;
2461 goto errout;
2462 }
2463
2464 if (chip->msi)
2465 if (pci_enable_msi(pci) < 0)
2466 chip->msi = 0;
2467
2468 if (azx_acquire_irq(chip, 0) < 0) {
2469 err = -EBUSY;
2470 goto errout;
2471 }
2472
2473 pci_set_master(pci);
2474 synchronize_irq(chip->irq);
2475
2476 gcap = azx_readw(chip, GCAP);
2477 snd_printdd(SFX "chipset global capabilities = 0x%x\n", gcap);
2478
2479 /* disable SB600 64bit support for safety */
2480 if ((chip->driver_type == AZX_DRIVER_ATI) ||
2481 (chip->driver_type == AZX_DRIVER_ATIHDMI)) {
2482 struct pci_dev *p_smbus;
2483 p_smbus = pci_get_device(PCI_VENDOR_ID_ATI,
2484 PCI_DEVICE_ID_ATI_SBX00_SMBUS,
2485 NULL);
2486 if (p_smbus) {
2487 if (p_smbus->revision < 0x30)
2488 gcap &= ~ICH6_GCAP_64OK;
2489 pci_dev_put(p_smbus);
2490 }
2491 }
2492
2493 /* disable 64bit DMA address for Teradici */
2494 /* it does not work with device 6549:1200 subsys e4a2:040b */
2495 if (chip->driver_type == AZX_DRIVER_TERA)
2496 gcap &= ~ICH6_GCAP_64OK;
2497
2498 /* allow 64bit DMA address if supported by H/W */
2499 if ((gcap & ICH6_GCAP_64OK) && !pci_set_dma_mask(pci, DMA_BIT_MASK(64)))
2500 pci_set_consistent_dma_mask(pci, DMA_BIT_MASK(64));
2501 else {
2502 pci_set_dma_mask(pci, DMA_BIT_MASK(32));
2503 pci_set_consistent_dma_mask(pci, DMA_BIT_MASK(32));
2504 }
2505
2506 /* read number of streams from GCAP register instead of using
2507 * hardcoded value
2508 */
2509 chip->capture_streams = (gcap >> 8) & 0x0f;
2510 chip->playback_streams = (gcap >> 12) & 0x0f;
2511 if (!chip->playback_streams && !chip->capture_streams) {
2512 /* gcap didn't give any info, switching to old method */
2513
2514 switch (chip->driver_type) {
2515 case AZX_DRIVER_ULI:
2516 chip->playback_streams = ULI_NUM_PLAYBACK;
2517 chip->capture_streams = ULI_NUM_CAPTURE;
2518 break;
2519 case AZX_DRIVER_ATIHDMI:
2520 chip->playback_streams = ATIHDMI_NUM_PLAYBACK;
2521 chip->capture_streams = ATIHDMI_NUM_CAPTURE;
2522 break;
2523 case AZX_DRIVER_GENERIC:
2524 default:
2525 chip->playback_streams = ICH6_NUM_PLAYBACK;
2526 chip->capture_streams = ICH6_NUM_CAPTURE;
2527 break;
2528 }
2529 }
2530 chip->capture_index_offset = 0;
2531 chip->playback_index_offset = chip->capture_streams;
2532 chip->num_streams = chip->playback_streams + chip->capture_streams;
2533 chip->azx_dev = kcalloc(chip->num_streams, sizeof(*chip->azx_dev),
2534 GFP_KERNEL);
2535 if (!chip->azx_dev) {
2536 snd_printk(KERN_ERR SFX "cannot malloc azx_dev\n");
2537 goto errout;
2538 }
2539
2540 for (i = 0; i < chip->num_streams; i++) {
2541 /* allocate memory for the BDL for each stream */
2542 err = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV,
2543 snd_dma_pci_data(chip->pci),
2544 BDL_SIZE, &chip->azx_dev[i].bdl);
2545 if (err < 0) {
2546 snd_printk(KERN_ERR SFX "cannot allocate BDL\n");
2547 goto errout;
2548 }
2549 }
2550 /* allocate memory for the position buffer */
2551 err = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV,
2552 snd_dma_pci_data(chip->pci),
2553 chip->num_streams * 8, &chip->posbuf);
2554 if (err < 0) {
2555 snd_printk(KERN_ERR SFX "cannot allocate posbuf\n");
2556 goto errout;
2557 }
2558 /* allocate CORB/RIRB */
2559 err = azx_alloc_cmd_io(chip);
2560 if (err < 0)
2561 goto errout;
2562
2563 /* initialize streams */
2564 azx_init_stream(chip);
2565
2566 /* initialize chip */
2567 azx_init_pci(chip);
2568 azx_init_chip(chip);
2569
2570 /* codec detection */
2571 if (!chip->codec_mask) {
2572 snd_printk(KERN_ERR SFX "no codecs found!\n");
2573 err = -ENODEV;
2574 goto errout;
2575 }
2576
2577 err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
2578 if (err <0) {
2579 snd_printk(KERN_ERR SFX "Error creating device [card]!\n");
2580 goto errout;
2581 }
2582
2583 strcpy(card->driver, "HDA-Intel");
2584 strlcpy(card->shortname, driver_short_names[chip->driver_type],
2585 sizeof(card->shortname));
2586 snprintf(card->longname, sizeof(card->longname),
2587 "%s at 0x%lx irq %i",
2588 card->shortname, chip->addr, chip->irq);
2589
2590 *rchip = chip;
2591 return 0;
2592
2593 errout:
2594 azx_free(chip);
2595 return err;
2596 }
2597
2598 static void power_down_all_codecs(struct azx *chip)
2599 {
2600 #ifdef CONFIG_SND_HDA_POWER_SAVE
2601 /* The codecs were powered up in snd_hda_codec_new().
2602 * Now all initialization done, so turn them down if possible
2603 */
2604 struct hda_codec *codec;
2605 list_for_each_entry(codec, &chip->bus->codec_list, list) {
2606 snd_hda_power_down(codec);
2607 }
2608 #endif
2609 }
2610
2611 static int __devinit azx_probe(struct pci_dev *pci,
2612 const struct pci_device_id *pci_id)
2613 {
2614 static int dev;
2615 struct snd_card *card;
2616 struct azx *chip;
2617 int err;
2618
2619 if (dev >= SNDRV_CARDS)
2620 return -ENODEV;
2621 if (!enable[dev]) {
2622 dev++;
2623 return -ENOENT;
2624 }
2625
2626 err = snd_card_create(index[dev], id[dev], THIS_MODULE, 0, &card);
2627 if (err < 0) {
2628 snd_printk(KERN_ERR SFX "Error creating card!\n");
2629 return err;
2630 }
2631
2632 /* set this here since it's referred in snd_hda_load_patch() */
2633 snd_card_set_dev(card, &pci->dev);
2634
2635 err = azx_create(card, pci, dev, pci_id->driver_data, &chip);
2636 if (err < 0)
2637 goto out_free;
2638 card->private_data = chip;
2639
2640 #ifdef CONFIG_SND_HDA_INPUT_BEEP
2641 chip->beep_mode = beep_mode[dev];
2642 #endif
2643
2644 /* create codec instances */
2645 err = azx_codec_create(chip, model[dev]);
2646 if (err < 0)
2647 goto out_free;
2648 #ifdef CONFIG_SND_HDA_PATCH_LOADER
2649 if (patch[dev]) {
2650 snd_printk(KERN_ERR SFX "Applying patch firmware '%s'\n",
2651 patch[dev]);
2652 err = snd_hda_load_patch(chip->bus, patch[dev]);
2653 if (err < 0)
2654 goto out_free;
2655 }
2656 #endif
2657 if (!probe_only[dev]) {
2658 err = azx_codec_configure(chip);
2659 if (err < 0)
2660 goto out_free;
2661 }
2662
2663 /* create PCM streams */
2664 err = snd_hda_build_pcms(chip->bus);
2665 if (err < 0)
2666 goto out_free;
2667
2668 /* create mixer controls */
2669 err = azx_mixer_create(chip);
2670 if (err < 0)
2671 goto out_free;
2672
2673 err = snd_card_register(card);
2674 if (err < 0)
2675 goto out_free;
2676
2677 pci_set_drvdata(pci, card);
2678 chip->running = 1;
2679 power_down_all_codecs(chip);
2680 azx_notifier_register(chip);
2681
2682 dev++;
2683 return err;
2684 out_free:
2685 snd_card_free(card);
2686 return err;
2687 }
2688
2689 static void __devexit azx_remove(struct pci_dev *pci)
2690 {
2691 snd_card_free(pci_get_drvdata(pci));
2692 pci_set_drvdata(pci, NULL);
2693 }
2694
2695 /* PCI IDs */
2696 static DEFINE_PCI_DEVICE_TABLE(azx_ids) = {
2697 /* ICH 6..10 */
2698 { PCI_DEVICE(0x8086, 0x2668), .driver_data = AZX_DRIVER_ICH },
2699 { PCI_DEVICE(0x8086, 0x27d8), .driver_data = AZX_DRIVER_ICH },
2700 { PCI_DEVICE(0x8086, 0x269a), .driver_data = AZX_DRIVER_ICH },
2701 { PCI_DEVICE(0x8086, 0x284b), .driver_data = AZX_DRIVER_ICH },
2702 { PCI_DEVICE(0x8086, 0x2911), .driver_data = AZX_DRIVER_ICH },
2703 { PCI_DEVICE(0x8086, 0x293e), .driver_data = AZX_DRIVER_ICH },
2704 { PCI_DEVICE(0x8086, 0x293f), .driver_data = AZX_DRIVER_ICH },
2705 { PCI_DEVICE(0x8086, 0x3a3e), .driver_data = AZX_DRIVER_ICH },
2706 { PCI_DEVICE(0x8086, 0x3a6e), .driver_data = AZX_DRIVER_ICH },
2707 /* PCH */
2708 { PCI_DEVICE(0x8086, 0x3b56), .driver_data = AZX_DRIVER_ICH },
2709 /* CPT */
2710 { PCI_DEVICE(0x8086, 0x1c20), .driver_data = AZX_DRIVER_PCH },
2711 /* SCH */
2712 { PCI_DEVICE(0x8086, 0x811b), .driver_data = AZX_DRIVER_SCH },
2713 /* ATI SB 450/600 */
2714 { PCI_DEVICE(0x1002, 0x437b), .driver_data = AZX_DRIVER_ATI },
2715 { PCI_DEVICE(0x1002, 0x4383), .driver_data = AZX_DRIVER_ATI },
2716 /* ATI HDMI */
2717 { PCI_DEVICE(0x1002, 0x793b), .driver_data = AZX_DRIVER_ATIHDMI },
2718 { PCI_DEVICE(0x1002, 0x7919), .driver_data = AZX_DRIVER_ATIHDMI },
2719 { PCI_DEVICE(0x1002, 0x960f), .driver_data = AZX_DRIVER_ATIHDMI },
2720 { PCI_DEVICE(0x1002, 0x970f), .driver_data = AZX_DRIVER_ATIHDMI },
2721 { PCI_DEVICE(0x1002, 0xaa00), .driver_data = AZX_DRIVER_ATIHDMI },
2722 { PCI_DEVICE(0x1002, 0xaa08), .driver_data = AZX_DRIVER_ATIHDMI },
2723 { PCI_DEVICE(0x1002, 0xaa10), .driver_data = AZX_DRIVER_ATIHDMI },
2724 { PCI_DEVICE(0x1002, 0xaa18), .driver_data = AZX_DRIVER_ATIHDMI },
2725 { PCI_DEVICE(0x1002, 0xaa20), .driver_data = AZX_DRIVER_ATIHDMI },
2726 { PCI_DEVICE(0x1002, 0xaa28), .driver_data = AZX_DRIVER_ATIHDMI },
2727 { PCI_DEVICE(0x1002, 0xaa30), .driver_data = AZX_DRIVER_ATIHDMI },
2728 { PCI_DEVICE(0x1002, 0xaa38), .driver_data = AZX_DRIVER_ATIHDMI },
2729 { PCI_DEVICE(0x1002, 0xaa40), .driver_data = AZX_DRIVER_ATIHDMI },
2730 { PCI_DEVICE(0x1002, 0xaa48), .driver_data = AZX_DRIVER_ATIHDMI },
2731 /* VIA VT8251/VT8237A */
2732 { PCI_DEVICE(0x1106, 0x3288), .driver_data = AZX_DRIVER_VIA },
2733 /* SIS966 */
2734 { PCI_DEVICE(0x1039, 0x7502), .driver_data = AZX_DRIVER_SIS },
2735 /* ULI M5461 */
2736 { PCI_DEVICE(0x10b9, 0x5461), .driver_data = AZX_DRIVER_ULI },
2737 /* NVIDIA MCP */
2738 { PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID),
2739 .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2740 .class_mask = 0xffffff,
2741 .driver_data = AZX_DRIVER_NVIDIA },
2742 /* Teradici */
2743 { PCI_DEVICE(0x6549, 0x1200), .driver_data = AZX_DRIVER_TERA },
2744 /* Creative X-Fi (CA0110-IBG) */
2745 #if !defined(CONFIG_SND_CTXFI) && !defined(CONFIG_SND_CTXFI_MODULE)
2746 /* the following entry conflicts with snd-ctxfi driver,
2747 * as ctxfi driver mutates from HD-audio to native mode with
2748 * a special command sequence.
2749 */
2750 { PCI_DEVICE(PCI_VENDOR_ID_CREATIVE, PCI_ANY_ID),
2751 .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2752 .class_mask = 0xffffff,
2753 .driver_data = AZX_DRIVER_GENERIC },
2754 #else
2755 /* this entry seems still valid -- i.e. without emu20kx chip */
2756 { PCI_DEVICE(0x1102, 0x0009), .driver_data = AZX_DRIVER_GENERIC },
2757 #endif
2758 /* AMD/ATI Generic, PCI class code and Vendor ID for HD Audio */
2759 { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_ANY_ID),
2760 .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2761 .class_mask = 0xffffff,
2762 .driver_data = AZX_DRIVER_GENERIC },
2763 { PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_ANY_ID),
2764 .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2765 .class_mask = 0xffffff,
2766 .driver_data = AZX_DRIVER_GENERIC },
2767 { 0, }
2768 };
2769 MODULE_DEVICE_TABLE(pci, azx_ids);
2770
2771 /* pci_driver definition */
2772 static struct pci_driver driver = {
2773 .name = "HDA Intel",
2774 .id_table = azx_ids,
2775 .probe = azx_probe,
2776 .remove = __devexit_p(azx_remove),
2777 #ifdef CONFIG_PM
2778 .suspend = azx_suspend,
2779 .resume = azx_resume,
2780 #endif
2781 };
2782
2783 static int __init alsa_card_azx_init(void)
2784 {
2785 return pci_register_driver(&driver);
2786 }
2787
2788 static void __exit alsa_card_azx_exit(void)
2789 {
2790 pci_unregister_driver(&driver);
2791 }
2792
2793 module_init(alsa_card_azx_init)
2794 module_exit(alsa_card_azx_exit)
Linux kernel - Deliverables
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