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[ALSA] ac97 - NULL check in snd_ac97_suspend/resume
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / sound / pci / via82xx.c
1 /*
2 * ALSA driver for VIA VT82xx (South Bridge)
3 *
4 * VT82C686A/B/C, VT8233A/C, VT8235
5 *
6 * Copyright (c) 2000 Jaroslav Kysela <perex@suse.cz>
7 * Tjeerd.Mulder <Tjeerd.Mulder@fujitsu-siemens.com>
8 * 2002 Takashi Iwai <tiwai@suse.de>
9 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
14 *
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
19 *
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23 *
24 */
25
26 /*
27 * Changes:
28 *
29 * Dec. 19, 2002 Takashi Iwai <tiwai@suse.de>
30 * - use the DSX channels for the first pcm playback.
31 * (on VIA8233, 8233C and 8235 only)
32 * this will allow you play simultaneously up to 4 streams.
33 * multi-channel playback is assigned to the second device
34 * on these chips.
35 * - support the secondary capture (on VIA8233/C,8235)
36 * - SPDIF support
37 * the DSX3 channel can be used for SPDIF output.
38 * on VIA8233A, this channel is assigned to the second pcm
39 * playback.
40 * the card config of alsa-lib will assign the correct
41 * device for applications.
42 * - clean up the code, separate low-level initialization
43 * routines for each chipset.
44 *
45 * Sep. 26, 2005 Karsten Wiese <annabellesgarden@yahoo.de>
46 * - Optimize position calculation for the 823x chips.
47 */
48
49 #include <sound/driver.h>
50 #include <asm/io.h>
51 #include <linux/delay.h>
52 #include <linux/interrupt.h>
53 #include <linux/init.h>
54 #include <linux/pci.h>
55 #include <linux/slab.h>
56 #include <linux/gameport.h>
57 #include <linux/moduleparam.h>
58 #include <sound/core.h>
59 #include <sound/pcm.h>
60 #include <sound/pcm_params.h>
61 #include <sound/info.h>
62 #include <sound/ac97_codec.h>
63 #include <sound/mpu401.h>
64 #include <sound/initval.h>
65
66 #if 0
67 #define POINTER_DEBUG
68 #endif
69
70 MODULE_AUTHOR("Jaroslav Kysela <perex@suse.cz>");
71 MODULE_DESCRIPTION("VIA VT82xx audio");
72 MODULE_LICENSE("GPL");
73 MODULE_SUPPORTED_DEVICE("{{VIA,VT82C686A/B/C,pci},{VIA,VT8233A/C,8235}}");
74
75 #if defined(CONFIG_GAMEPORT) || (defined(MODULE) && defined(CONFIG_GAMEPORT_MODULE))
76 #define SUPPORT_JOYSTICK 1
77 #endif
78
79 static int index = SNDRV_DEFAULT_IDX1; /* Index 0-MAX */
80 static char *id = SNDRV_DEFAULT_STR1; /* ID for this card */
81 static long mpu_port;
82 #ifdef SUPPORT_JOYSTICK
83 static int joystick;
84 #endif
85 static int ac97_clock = 48000;
86 static char *ac97_quirk;
87 static int dxs_support;
88
89 module_param(index, int, 0444);
90 MODULE_PARM_DESC(index, "Index value for VIA 82xx bridge.");
91 module_param(id, charp, 0444);
92 MODULE_PARM_DESC(id, "ID string for VIA 82xx bridge.");
93 module_param(mpu_port, long, 0444);
94 MODULE_PARM_DESC(mpu_port, "MPU-401 port. (VT82C686x only)");
95 #ifdef SUPPORT_JOYSTICK
96 module_param(joystick, bool, 0444);
97 MODULE_PARM_DESC(joystick, "Enable joystick. (VT82C686x only)");
98 #endif
99 module_param(ac97_clock, int, 0444);
100 MODULE_PARM_DESC(ac97_clock, "AC'97 codec clock (default 48000Hz).");
101 module_param(ac97_quirk, charp, 0444);
102 MODULE_PARM_DESC(ac97_quirk, "AC'97 workaround for strange hardware.");
103 module_param(dxs_support, int, 0444);
104 MODULE_PARM_DESC(dxs_support, "Support for DXS channels (0 = auto, 1 = enable, 2 = disable, 3 = 48k only, 4 = no VRA, 5 = enable any sample rate)");
105
106 /* just for backward compatibility */
107 static int enable;
108 module_param(enable, bool, 0444);
109
110
111 /* revision numbers for via686 */
112 #define VIA_REV_686_A 0x10
113 #define VIA_REV_686_B 0x11
114 #define VIA_REV_686_C 0x12
115 #define VIA_REV_686_D 0x13
116 #define VIA_REV_686_E 0x14
117 #define VIA_REV_686_H 0x20
118
119 /* revision numbers for via8233 */
120 #define VIA_REV_PRE_8233 0x10 /* not in market */
121 #define VIA_REV_8233C 0x20 /* 2 rec, 4 pb, 1 multi-pb */
122 #define VIA_REV_8233 0x30 /* 2 rec, 4 pb, 1 multi-pb, spdif */
123 #define VIA_REV_8233A 0x40 /* 1 rec, 1 multi-pb, spdf */
124 #define VIA_REV_8235 0x50 /* 2 rec, 4 pb, 1 multi-pb, spdif */
125 #define VIA_REV_8237 0x60
126
127 /*
128 * Direct registers
129 */
130
131 #define VIAREG(via, x) ((via)->port + VIA_REG_##x)
132 #define VIADEV_REG(viadev, x) ((viadev)->port + VIA_REG_##x)
133
134 /* common offsets */
135 #define VIA_REG_OFFSET_STATUS 0x00 /* byte - channel status */
136 #define VIA_REG_STAT_ACTIVE 0x80 /* RO */
137 #define VIA8233_SHADOW_STAT_ACTIVE 0x08 /* RO */
138 #define VIA_REG_STAT_PAUSED 0x40 /* RO */
139 #define VIA_REG_STAT_TRIGGER_QUEUED 0x08 /* RO */
140 #define VIA_REG_STAT_STOPPED 0x04 /* RWC */
141 #define VIA_REG_STAT_EOL 0x02 /* RWC */
142 #define VIA_REG_STAT_FLAG 0x01 /* RWC */
143 #define VIA_REG_OFFSET_CONTROL 0x01 /* byte - channel control */
144 #define VIA_REG_CTRL_START 0x80 /* WO */
145 #define VIA_REG_CTRL_TERMINATE 0x40 /* WO */
146 #define VIA_REG_CTRL_AUTOSTART 0x20
147 #define VIA_REG_CTRL_PAUSE 0x08 /* RW */
148 #define VIA_REG_CTRL_INT_STOP 0x04
149 #define VIA_REG_CTRL_INT_EOL 0x02
150 #define VIA_REG_CTRL_INT_FLAG 0x01
151 #define VIA_REG_CTRL_RESET 0x01 /* RW - probably reset? undocumented */
152 #define VIA_REG_CTRL_INT (VIA_REG_CTRL_INT_FLAG | VIA_REG_CTRL_INT_EOL | VIA_REG_CTRL_AUTOSTART)
153 #define VIA_REG_OFFSET_TYPE 0x02 /* byte - channel type (686 only) */
154 #define VIA_REG_TYPE_AUTOSTART 0x80 /* RW - autostart at EOL */
155 #define VIA_REG_TYPE_16BIT 0x20 /* RW */
156 #define VIA_REG_TYPE_STEREO 0x10 /* RW */
157 #define VIA_REG_TYPE_INT_LLINE 0x00
158 #define VIA_REG_TYPE_INT_LSAMPLE 0x04
159 #define VIA_REG_TYPE_INT_LESSONE 0x08
160 #define VIA_REG_TYPE_INT_MASK 0x0c
161 #define VIA_REG_TYPE_INT_EOL 0x02
162 #define VIA_REG_TYPE_INT_FLAG 0x01
163 #define VIA_REG_OFFSET_TABLE_PTR 0x04 /* dword - channel table pointer */
164 #define VIA_REG_OFFSET_CURR_PTR 0x04 /* dword - channel current pointer */
165 #define VIA_REG_OFFSET_STOP_IDX 0x08 /* dword - stop index, channel type, sample rate */
166 #define VIA8233_REG_TYPE_16BIT 0x00200000 /* RW */
167 #define VIA8233_REG_TYPE_STEREO 0x00100000 /* RW */
168 #define VIA_REG_OFFSET_CURR_COUNT 0x0c /* dword - channel current count (24 bit) */
169 #define VIA_REG_OFFSET_CURR_INDEX 0x0f /* byte - channel current index (for via8233 only) */
170
171 #define DEFINE_VIA_REGSET(name,val) \
172 enum {\
173 VIA_REG_##name##_STATUS = (val),\
174 VIA_REG_##name##_CONTROL = (val) + 0x01,\
175 VIA_REG_##name##_TYPE = (val) + 0x02,\
176 VIA_REG_##name##_TABLE_PTR = (val) + 0x04,\
177 VIA_REG_##name##_CURR_PTR = (val) + 0x04,\
178 VIA_REG_##name##_STOP_IDX = (val) + 0x08,\
179 VIA_REG_##name##_CURR_COUNT = (val) + 0x0c,\
180 }
181
182 /* playback block */
183 DEFINE_VIA_REGSET(PLAYBACK, 0x00);
184 DEFINE_VIA_REGSET(CAPTURE, 0x10);
185 DEFINE_VIA_REGSET(FM, 0x20);
186
187 /* AC'97 */
188 #define VIA_REG_AC97 0x80 /* dword */
189 #define VIA_REG_AC97_CODEC_ID_MASK (3<<30)
190 #define VIA_REG_AC97_CODEC_ID_SHIFT 30
191 #define VIA_REG_AC97_CODEC_ID_PRIMARY 0x00
192 #define VIA_REG_AC97_CODEC_ID_SECONDARY 0x01
193 #define VIA_REG_AC97_SECONDARY_VALID (1<<27)
194 #define VIA_REG_AC97_PRIMARY_VALID (1<<25)
195 #define VIA_REG_AC97_BUSY (1<<24)
196 #define VIA_REG_AC97_READ (1<<23)
197 #define VIA_REG_AC97_CMD_SHIFT 16
198 #define VIA_REG_AC97_CMD_MASK 0x7e
199 #define VIA_REG_AC97_DATA_SHIFT 0
200 #define VIA_REG_AC97_DATA_MASK 0xffff
201
202 #define VIA_REG_SGD_SHADOW 0x84 /* dword */
203 /* via686 */
204 #define VIA_REG_SGD_STAT_PB_FLAG (1<<0)
205 #define VIA_REG_SGD_STAT_CP_FLAG (1<<1)
206 #define VIA_REG_SGD_STAT_FM_FLAG (1<<2)
207 #define VIA_REG_SGD_STAT_PB_EOL (1<<4)
208 #define VIA_REG_SGD_STAT_CP_EOL (1<<5)
209 #define VIA_REG_SGD_STAT_FM_EOL (1<<6)
210 #define VIA_REG_SGD_STAT_PB_STOP (1<<8)
211 #define VIA_REG_SGD_STAT_CP_STOP (1<<9)
212 #define VIA_REG_SGD_STAT_FM_STOP (1<<10)
213 #define VIA_REG_SGD_STAT_PB_ACTIVE (1<<12)
214 #define VIA_REG_SGD_STAT_CP_ACTIVE (1<<13)
215 #define VIA_REG_SGD_STAT_FM_ACTIVE (1<<14)
216 /* via8233 */
217 #define VIA8233_REG_SGD_STAT_FLAG (1<<0)
218 #define VIA8233_REG_SGD_STAT_EOL (1<<1)
219 #define VIA8233_REG_SGD_STAT_STOP (1<<2)
220 #define VIA8233_REG_SGD_STAT_ACTIVE (1<<3)
221 #define VIA8233_INTR_MASK(chan) ((VIA8233_REG_SGD_STAT_FLAG|VIA8233_REG_SGD_STAT_EOL) << ((chan) * 4))
222 #define VIA8233_REG_SGD_CHAN_SDX 0
223 #define VIA8233_REG_SGD_CHAN_MULTI 4
224 #define VIA8233_REG_SGD_CHAN_REC 6
225 #define VIA8233_REG_SGD_CHAN_REC1 7
226
227 #define VIA_REG_GPI_STATUS 0x88
228 #define VIA_REG_GPI_INTR 0x8c
229
230 /* multi-channel and capture registers for via8233 */
231 DEFINE_VIA_REGSET(MULTPLAY, 0x40);
232 DEFINE_VIA_REGSET(CAPTURE_8233, 0x60);
233
234 /* via8233-specific registers */
235 #define VIA_REG_OFS_PLAYBACK_VOLUME_L 0x02 /* byte */
236 #define VIA_REG_OFS_PLAYBACK_VOLUME_R 0x03 /* byte */
237 #define VIA_REG_OFS_MULTPLAY_FORMAT 0x02 /* byte - format and channels */
238 #define VIA_REG_MULTPLAY_FMT_8BIT 0x00
239 #define VIA_REG_MULTPLAY_FMT_16BIT 0x80
240 #define VIA_REG_MULTPLAY_FMT_CH_MASK 0x70 /* # channels << 4 (valid = 1,2,4,6) */
241 #define VIA_REG_OFS_CAPTURE_FIFO 0x02 /* byte - bit 6 = fifo enable */
242 #define VIA_REG_CAPTURE_FIFO_ENABLE 0x40
243
244 #define VIA_DXS_MAX_VOLUME 31 /* max. volume (attenuation) of reg 0x32/33 */
245
246 #define VIA_REG_CAPTURE_CHANNEL 0x63 /* byte - input select */
247 #define VIA_REG_CAPTURE_CHANNEL_MIC 0x4
248 #define VIA_REG_CAPTURE_CHANNEL_LINE 0
249 #define VIA_REG_CAPTURE_SELECT_CODEC 0x03 /* recording source codec (0 = primary) */
250
251 #define VIA_TBL_BIT_FLAG 0x40000000
252 #define VIA_TBL_BIT_EOL 0x80000000
253
254 /* pci space */
255 #define VIA_ACLINK_STAT 0x40
256 #define VIA_ACLINK_C11_READY 0x20
257 #define VIA_ACLINK_C10_READY 0x10
258 #define VIA_ACLINK_C01_READY 0x04 /* secondary codec ready */
259 #define VIA_ACLINK_LOWPOWER 0x02 /* low-power state */
260 #define VIA_ACLINK_C00_READY 0x01 /* primary codec ready */
261 #define VIA_ACLINK_CTRL 0x41
262 #define VIA_ACLINK_CTRL_ENABLE 0x80 /* 0: disable, 1: enable */
263 #define VIA_ACLINK_CTRL_RESET 0x40 /* 0: assert, 1: de-assert */
264 #define VIA_ACLINK_CTRL_SYNC 0x20 /* 0: release SYNC, 1: force SYNC hi */
265 #define VIA_ACLINK_CTRL_SDO 0x10 /* 0: release SDO, 1: force SDO hi */
266 #define VIA_ACLINK_CTRL_VRA 0x08 /* 0: disable VRA, 1: enable VRA */
267 #define VIA_ACLINK_CTRL_PCM 0x04 /* 0: disable PCM, 1: enable PCM */
268 #define VIA_ACLINK_CTRL_FM 0x02 /* via686 only */
269 #define VIA_ACLINK_CTRL_SB 0x01 /* via686 only */
270 #define VIA_ACLINK_CTRL_INIT (VIA_ACLINK_CTRL_ENABLE|\
271 VIA_ACLINK_CTRL_RESET|\
272 VIA_ACLINK_CTRL_PCM|\
273 VIA_ACLINK_CTRL_VRA)
274 #define VIA_FUNC_ENABLE 0x42
275 #define VIA_FUNC_MIDI_PNP 0x80 /* FIXME: it's 0x40 in the datasheet! */
276 #define VIA_FUNC_MIDI_IRQMASK 0x40 /* FIXME: not documented! */
277 #define VIA_FUNC_RX2C_WRITE 0x20
278 #define VIA_FUNC_SB_FIFO_EMPTY 0x10
279 #define VIA_FUNC_ENABLE_GAME 0x08
280 #define VIA_FUNC_ENABLE_FM 0x04
281 #define VIA_FUNC_ENABLE_MIDI 0x02
282 #define VIA_FUNC_ENABLE_SB 0x01
283 #define VIA_PNP_CONTROL 0x43
284 #define VIA_FM_NMI_CTRL 0x48
285 #define VIA8233_VOLCHG_CTRL 0x48
286 #define VIA8233_SPDIF_CTRL 0x49
287 #define VIA8233_SPDIF_DX3 0x08
288 #define VIA8233_SPDIF_SLOT_MASK 0x03
289 #define VIA8233_SPDIF_SLOT_1011 0x00
290 #define VIA8233_SPDIF_SLOT_34 0x01
291 #define VIA8233_SPDIF_SLOT_78 0x02
292 #define VIA8233_SPDIF_SLOT_69 0x03
293
294 /*
295 */
296
297 #define VIA_DXS_AUTO 0
298 #define VIA_DXS_ENABLE 1
299 #define VIA_DXS_DISABLE 2
300 #define VIA_DXS_48K 3
301 #define VIA_DXS_NO_VRA 4
302 #define VIA_DXS_SRC 5
303
304
305 /*
306 * pcm stream
307 */
308
309 struct snd_via_sg_table {
310 unsigned int offset;
311 unsigned int size;
312 } ;
313
314 #define VIA_TABLE_SIZE 255
315
316 struct viadev {
317 unsigned int reg_offset;
318 unsigned long port;
319 int direction; /* playback = 0, capture = 1 */
320 struct snd_pcm_substream *substream;
321 int running;
322 unsigned int tbl_entries; /* # descriptors */
323 struct snd_dma_buffer table;
324 struct snd_via_sg_table *idx_table;
325 /* for recovery from the unexpected pointer */
326 unsigned int lastpos;
327 unsigned int fragsize;
328 unsigned int bufsize;
329 unsigned int bufsize2;
330 int hwptr_done; /* processed frame position in the buffer */
331 int in_interrupt;
332 int shadow_shift;
333 };
334
335
336 enum { TYPE_CARD_VIA686 = 1, TYPE_CARD_VIA8233 };
337 enum { TYPE_VIA686, TYPE_VIA8233, TYPE_VIA8233A };
338
339 #define VIA_MAX_DEVS 7 /* 4 playback, 1 multi, 2 capture */
340
341 struct via_rate_lock {
342 spinlock_t lock;
343 int rate;
344 int used;
345 };
346
347 struct via82xx {
348 int irq;
349
350 unsigned long port;
351 struct resource *mpu_res;
352 int chip_type;
353 unsigned char revision;
354
355 unsigned char old_legacy;
356 unsigned char old_legacy_cfg;
357 #ifdef CONFIG_PM
358 unsigned char legacy_saved;
359 unsigned char legacy_cfg_saved;
360 unsigned char spdif_ctrl_saved;
361 unsigned char capture_src_saved[2];
362 unsigned int mpu_port_saved;
363 #endif
364
365 unsigned char playback_volume[4][2]; /* for VIA8233/C/8235; default = 0 */
366 unsigned char playback_volume_c[2]; /* for VIA8233/C/8235; default = 0 */
367
368 unsigned int intr_mask; /* SGD_SHADOW mask to check interrupts */
369
370 struct pci_dev *pci;
371 struct snd_card *card;
372
373 unsigned int num_devs;
374 unsigned int playback_devno, multi_devno, capture_devno;
375 struct viadev devs[VIA_MAX_DEVS];
376 struct via_rate_lock rates[2]; /* playback and capture */
377 unsigned int dxs_fixed: 1; /* DXS channel accepts only 48kHz */
378 unsigned int no_vra: 1; /* no need to set VRA on DXS channels */
379 unsigned int dxs_src: 1; /* use full SRC capabilities of DXS */
380 unsigned int spdif_on: 1; /* only spdif rates work to external DACs */
381
382 struct snd_pcm *pcms[2];
383 struct snd_rawmidi *rmidi;
384
385 struct snd_ac97_bus *ac97_bus;
386 struct snd_ac97 *ac97;
387 unsigned int ac97_clock;
388 unsigned int ac97_secondary; /* secondary AC'97 codec is present */
389
390 spinlock_t reg_lock;
391 struct snd_info_entry *proc_entry;
392
393 #ifdef SUPPORT_JOYSTICK
394 struct gameport *gameport;
395 #endif
396 };
397
398 static struct pci_device_id snd_via82xx_ids[] = {
399 /* 0x1106, 0x3058 */
400 { PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686_5, PCI_ANY_ID, PCI_ANY_ID, 0, 0, TYPE_CARD_VIA686, }, /* 686A */
401 /* 0x1106, 0x3059 */
402 { PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8233_5, PCI_ANY_ID, PCI_ANY_ID, 0, 0, TYPE_CARD_VIA8233, }, /* VT8233 */
403 { 0, }
404 };
405
406 MODULE_DEVICE_TABLE(pci, snd_via82xx_ids);
407
408 /*
409 */
410
411 /*
412 * allocate and initialize the descriptor buffers
413 * periods = number of periods
414 * fragsize = period size in bytes
415 */
416 static int build_via_table(struct viadev *dev, struct snd_pcm_substream *substream,
417 struct pci_dev *pci,
418 unsigned int periods, unsigned int fragsize)
419 {
420 unsigned int i, idx, ofs, rest;
421 struct via82xx *chip = snd_pcm_substream_chip(substream);
422 struct snd_sg_buf *sgbuf = snd_pcm_substream_sgbuf(substream);
423
424 if (dev->table.area == NULL) {
425 /* the start of each lists must be aligned to 8 bytes,
426 * but the kernel pages are much bigger, so we don't care
427 */
428 if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(chip->pci),
429 PAGE_ALIGN(VIA_TABLE_SIZE * 2 * 8),
430 &dev->table) < 0)
431 return -ENOMEM;
432 }
433 if (! dev->idx_table) {
434 dev->idx_table = kmalloc(sizeof(*dev->idx_table) * VIA_TABLE_SIZE, GFP_KERNEL);
435 if (! dev->idx_table)
436 return -ENOMEM;
437 }
438
439 /* fill the entries */
440 idx = 0;
441 ofs = 0;
442 for (i = 0; i < periods; i++) {
443 rest = fragsize;
444 /* fill descriptors for a period.
445 * a period can be split to several descriptors if it's
446 * over page boundary.
447 */
448 do {
449 unsigned int r;
450 unsigned int flag;
451
452 if (idx >= VIA_TABLE_SIZE) {
453 snd_printk(KERN_ERR "via82xx: too much table size!\n");
454 return -EINVAL;
455 }
456 ((u32 *)dev->table.area)[idx << 1] = cpu_to_le32((u32)snd_pcm_sgbuf_get_addr(sgbuf, ofs));
457 r = PAGE_SIZE - (ofs % PAGE_SIZE);
458 if (rest < r)
459 r = rest;
460 rest -= r;
461 if (! rest) {
462 if (i == periods - 1)
463 flag = VIA_TBL_BIT_EOL; /* buffer boundary */
464 else
465 flag = VIA_TBL_BIT_FLAG; /* period boundary */
466 } else
467 flag = 0; /* period continues to the next */
468 // printk("via: tbl %d: at %d size %d (rest %d)\n", idx, ofs, r, rest);
469 ((u32 *)dev->table.area)[(idx<<1) + 1] = cpu_to_le32(r | flag);
470 dev->idx_table[idx].offset = ofs;
471 dev->idx_table[idx].size = r;
472 ofs += r;
473 idx++;
474 } while (rest > 0);
475 }
476 dev->tbl_entries = idx;
477 dev->bufsize = periods * fragsize;
478 dev->bufsize2 = dev->bufsize / 2;
479 dev->fragsize = fragsize;
480 return 0;
481 }
482
483
484 static int clean_via_table(struct viadev *dev, struct snd_pcm_substream *substream,
485 struct pci_dev *pci)
486 {
487 if (dev->table.area) {
488 snd_dma_free_pages(&dev->table);
489 dev->table.area = NULL;
490 }
491 kfree(dev->idx_table);
492 dev->idx_table = NULL;
493 return 0;
494 }
495
496 /*
497 * Basic I/O
498 */
499
500 static inline unsigned int snd_via82xx_codec_xread(struct via82xx *chip)
501 {
502 return inl(VIAREG(chip, AC97));
503 }
504
505 static inline void snd_via82xx_codec_xwrite(struct via82xx *chip, unsigned int val)
506 {
507 outl(val, VIAREG(chip, AC97));
508 }
509
510 static int snd_via82xx_codec_ready(struct via82xx *chip, int secondary)
511 {
512 unsigned int timeout = 1000; /* 1ms */
513 unsigned int val;
514
515 while (timeout-- > 0) {
516 udelay(1);
517 if (!((val = snd_via82xx_codec_xread(chip)) & VIA_REG_AC97_BUSY))
518 return val & 0xffff;
519 }
520 snd_printk(KERN_ERR "codec_ready: codec %i is not ready [0x%x]\n",
521 secondary, snd_via82xx_codec_xread(chip));
522 return -EIO;
523 }
524
525 static int snd_via82xx_codec_valid(struct via82xx *chip, int secondary)
526 {
527 unsigned int timeout = 1000; /* 1ms */
528 unsigned int val, val1;
529 unsigned int stat = !secondary ? VIA_REG_AC97_PRIMARY_VALID :
530 VIA_REG_AC97_SECONDARY_VALID;
531
532 while (timeout-- > 0) {
533 val = snd_via82xx_codec_xread(chip);
534 val1 = val & (VIA_REG_AC97_BUSY | stat);
535 if (val1 == stat)
536 return val & 0xffff;
537 udelay(1);
538 }
539 return -EIO;
540 }
541
542 static void snd_via82xx_codec_wait(struct snd_ac97 *ac97)
543 {
544 struct via82xx *chip = ac97->private_data;
545 int err;
546 err = snd_via82xx_codec_ready(chip, ac97->num);
547 /* here we need to wait fairly for long time.. */
548 msleep(500);
549 }
550
551 static void snd_via82xx_codec_write(struct snd_ac97 *ac97,
552 unsigned short reg,
553 unsigned short val)
554 {
555 struct via82xx *chip = ac97->private_data;
556 unsigned int xval;
557
558 xval = !ac97->num ? VIA_REG_AC97_CODEC_ID_PRIMARY : VIA_REG_AC97_CODEC_ID_SECONDARY;
559 xval <<= VIA_REG_AC97_CODEC_ID_SHIFT;
560 xval |= reg << VIA_REG_AC97_CMD_SHIFT;
561 xval |= val << VIA_REG_AC97_DATA_SHIFT;
562 snd_via82xx_codec_xwrite(chip, xval);
563 snd_via82xx_codec_ready(chip, ac97->num);
564 }
565
566 static unsigned short snd_via82xx_codec_read(struct snd_ac97 *ac97, unsigned short reg)
567 {
568 struct via82xx *chip = ac97->private_data;
569 unsigned int xval, val = 0xffff;
570 int again = 0;
571
572 xval = ac97->num << VIA_REG_AC97_CODEC_ID_SHIFT;
573 xval |= ac97->num ? VIA_REG_AC97_SECONDARY_VALID : VIA_REG_AC97_PRIMARY_VALID;
574 xval |= VIA_REG_AC97_READ;
575 xval |= (reg & 0x7f) << VIA_REG_AC97_CMD_SHIFT;
576 while (1) {
577 if (again++ > 3) {
578 snd_printk(KERN_ERR "codec_read: codec %i is not valid [0x%x]\n",
579 ac97->num, snd_via82xx_codec_xread(chip));
580 return 0xffff;
581 }
582 snd_via82xx_codec_xwrite(chip, xval);
583 udelay (20);
584 if (snd_via82xx_codec_valid(chip, ac97->num) >= 0) {
585 udelay(25);
586 val = snd_via82xx_codec_xread(chip);
587 break;
588 }
589 }
590 return val & 0xffff;
591 }
592
593 static void snd_via82xx_channel_reset(struct via82xx *chip, struct viadev *viadev)
594 {
595 outb(VIA_REG_CTRL_PAUSE | VIA_REG_CTRL_TERMINATE | VIA_REG_CTRL_RESET,
596 VIADEV_REG(viadev, OFFSET_CONTROL));
597 inb(VIADEV_REG(viadev, OFFSET_CONTROL));
598 udelay(50);
599 /* disable interrupts */
600 outb(0x00, VIADEV_REG(viadev, OFFSET_CONTROL));
601 /* clear interrupts */
602 outb(0x03, VIADEV_REG(viadev, OFFSET_STATUS));
603 outb(0x00, VIADEV_REG(viadev, OFFSET_TYPE)); /* for via686 */
604 // outl(0, VIADEV_REG(viadev, OFFSET_CURR_PTR));
605 viadev->lastpos = 0;
606 viadev->hwptr_done = 0;
607 }
608
609
610 /*
611 * Interrupt handler
612 * Used for 686 and 8233A
613 */
614 static irqreturn_t snd_via686_interrupt(int irq, void *dev_id, struct pt_regs *regs)
615 {
616 struct via82xx *chip = dev_id;
617 unsigned int status;
618 unsigned int i;
619
620 status = inl(VIAREG(chip, SGD_SHADOW));
621 if (! (status & chip->intr_mask)) {
622 if (chip->rmidi)
623 /* check mpu401 interrupt */
624 return snd_mpu401_uart_interrupt(irq, chip->rmidi->private_data, regs);
625 return IRQ_NONE;
626 }
627
628 /* check status for each stream */
629 spin_lock(&chip->reg_lock);
630 for (i = 0; i < chip->num_devs; i++) {
631 struct viadev *viadev = &chip->devs[i];
632 unsigned char c_status = inb(VIADEV_REG(viadev, OFFSET_STATUS));
633 if (! (c_status & (VIA_REG_STAT_EOL|VIA_REG_STAT_FLAG|VIA_REG_STAT_STOPPED)))
634 continue;
635 if (viadev->substream && viadev->running) {
636 /*
637 * Update hwptr_done based on 'period elapsed'
638 * interrupts. We'll use it, when the chip returns 0
639 * for OFFSET_CURR_COUNT.
640 */
641 if (c_status & VIA_REG_STAT_EOL)
642 viadev->hwptr_done = 0;
643 else
644 viadev->hwptr_done += viadev->fragsize;
645 viadev->in_interrupt = c_status;
646 spin_unlock(&chip->reg_lock);
647 snd_pcm_period_elapsed(viadev->substream);
648 spin_lock(&chip->reg_lock);
649 viadev->in_interrupt = 0;
650 }
651 outb(c_status, VIADEV_REG(viadev, OFFSET_STATUS)); /* ack */
652 }
653 spin_unlock(&chip->reg_lock);
654 return IRQ_HANDLED;
655 }
656
657 /*
658 * Interrupt handler
659 */
660 static irqreturn_t snd_via8233_interrupt(int irq, void *dev_id, struct pt_regs *regs)
661 {
662 struct via82xx *chip = dev_id;
663 unsigned int status;
664 unsigned int i;
665 int irqreturn = 0;
666
667 /* check status for each stream */
668 spin_lock(&chip->reg_lock);
669 status = inl(VIAREG(chip, SGD_SHADOW));
670
671 for (i = 0; i < chip->num_devs; i++) {
672 struct viadev *viadev = &chip->devs[i];
673 struct snd_pcm_substream *substream;
674 unsigned char c_status, shadow_status;
675
676 shadow_status = (status >> viadev->shadow_shift) &
677 (VIA8233_SHADOW_STAT_ACTIVE|VIA_REG_STAT_EOL|
678 VIA_REG_STAT_FLAG);
679 c_status = shadow_status & (VIA_REG_STAT_EOL|VIA_REG_STAT_FLAG);
680 if (!c_status)
681 continue;
682
683 substream = viadev->substream;
684 if (substream && viadev->running) {
685 /*
686 * Update hwptr_done based on 'period elapsed'
687 * interrupts. We'll use it, when the chip returns 0
688 * for OFFSET_CURR_COUNT.
689 */
690 if (c_status & VIA_REG_STAT_EOL)
691 viadev->hwptr_done = 0;
692 else
693 viadev->hwptr_done += viadev->fragsize;
694 viadev->in_interrupt = c_status;
695 if (shadow_status & VIA8233_SHADOW_STAT_ACTIVE)
696 viadev->in_interrupt |= VIA_REG_STAT_ACTIVE;
697 spin_unlock(&chip->reg_lock);
698
699 snd_pcm_period_elapsed(substream);
700
701 spin_lock(&chip->reg_lock);
702 viadev->in_interrupt = 0;
703 }
704 outb(c_status, VIADEV_REG(viadev, OFFSET_STATUS)); /* ack */
705 irqreturn = 1;
706 }
707 spin_unlock(&chip->reg_lock);
708 return IRQ_RETVAL(irqreturn);
709 }
710
711 /*
712 * PCM callbacks
713 */
714
715 /*
716 * trigger callback
717 */
718 static int snd_via82xx_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
719 {
720 struct via82xx *chip = snd_pcm_substream_chip(substream);
721 struct viadev *viadev = substream->runtime->private_data;
722 unsigned char val;
723
724 if (chip->chip_type != TYPE_VIA686)
725 val = VIA_REG_CTRL_INT;
726 else
727 val = 0;
728 switch (cmd) {
729 case SNDRV_PCM_TRIGGER_START:
730 case SNDRV_PCM_TRIGGER_RESUME:
731 val |= VIA_REG_CTRL_START;
732 viadev->running = 1;
733 break;
734 case SNDRV_PCM_TRIGGER_STOP:
735 case SNDRV_PCM_TRIGGER_SUSPEND:
736 val = VIA_REG_CTRL_TERMINATE;
737 viadev->running = 0;
738 break;
739 case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
740 val |= VIA_REG_CTRL_PAUSE;
741 viadev->running = 0;
742 break;
743 case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
744 viadev->running = 1;
745 break;
746 default:
747 return -EINVAL;
748 }
749 outb(val, VIADEV_REG(viadev, OFFSET_CONTROL));
750 if (cmd == SNDRV_PCM_TRIGGER_STOP)
751 snd_via82xx_channel_reset(chip, viadev);
752 return 0;
753 }
754
755
756 /*
757 * pointer callbacks
758 */
759
760 /*
761 * calculate the linear position at the given sg-buffer index and the rest count
762 */
763
764 #define check_invalid_pos(viadev,pos) \
765 ((pos) < viadev->lastpos && ((pos) >= viadev->bufsize2 ||\
766 viadev->lastpos < viadev->bufsize2))
767
768 static inline unsigned int calc_linear_pos(struct viadev *viadev, unsigned int idx,
769 unsigned int count)
770 {
771 unsigned int size, base, res;
772
773 size = viadev->idx_table[idx].size;
774 base = viadev->idx_table[idx].offset;
775 res = base + size - count;
776 if (res >= viadev->bufsize)
777 res -= viadev->bufsize;
778
779 /* check the validity of the calculated position */
780 if (size < count) {
781 snd_printd(KERN_ERR "invalid via82xx_cur_ptr (size = %d, count = %d)\n",
782 (int)size, (int)count);
783 res = viadev->lastpos;
784 } else {
785 if (! count) {
786 /* Some mobos report count = 0 on the DMA boundary,
787 * i.e. count = size indeed.
788 * Let's check whether this step is above the expected size.
789 */
790 int delta = res - viadev->lastpos;
791 if (delta < 0)
792 delta += viadev->bufsize;
793 if ((unsigned int)delta > viadev->fragsize)
794 res = base;
795 }
796 if (check_invalid_pos(viadev, res)) {
797 #ifdef POINTER_DEBUG
798 printk(KERN_DEBUG "fail: idx = %i/%i, lastpos = 0x%x, "
799 "bufsize2 = 0x%x, offsize = 0x%x, size = 0x%x, "
800 "count = 0x%x\n", idx, viadev->tbl_entries,
801 viadev->lastpos, viadev->bufsize2,
802 viadev->idx_table[idx].offset,
803 viadev->idx_table[idx].size, count);
804 #endif
805 /* count register returns full size when end of buffer is reached */
806 res = base + size;
807 if (check_invalid_pos(viadev, res)) {
808 snd_printd(KERN_ERR "invalid via82xx_cur_ptr (2), "
809 "using last valid pointer\n");
810 res = viadev->lastpos;
811 }
812 }
813 }
814 return res;
815 }
816
817 /*
818 * get the current pointer on via686
819 */
820 static snd_pcm_uframes_t snd_via686_pcm_pointer(struct snd_pcm_substream *substream)
821 {
822 struct via82xx *chip = snd_pcm_substream_chip(substream);
823 struct viadev *viadev = substream->runtime->private_data;
824 unsigned int idx, ptr, count, res;
825
826 snd_assert(viadev->tbl_entries, return 0);
827 if (!(inb(VIADEV_REG(viadev, OFFSET_STATUS)) & VIA_REG_STAT_ACTIVE))
828 return 0;
829
830 spin_lock(&chip->reg_lock);
831 count = inl(VIADEV_REG(viadev, OFFSET_CURR_COUNT)) & 0xffffff;
832 /* The via686a does not have the current index register,
833 * so we need to calculate the index from CURR_PTR.
834 */
835 ptr = inl(VIADEV_REG(viadev, OFFSET_CURR_PTR));
836 if (ptr <= (unsigned int)viadev->table.addr)
837 idx = 0;
838 else /* CURR_PTR holds the address + 8 */
839 idx = ((ptr - (unsigned int)viadev->table.addr) / 8 - 1) % viadev->tbl_entries;
840 res = calc_linear_pos(viadev, idx, count);
841 viadev->lastpos = res; /* remember the last position */
842 spin_unlock(&chip->reg_lock);
843
844 return bytes_to_frames(substream->runtime, res);
845 }
846
847 /*
848 * get the current pointer on via823x
849 */
850 static snd_pcm_uframes_t snd_via8233_pcm_pointer(struct snd_pcm_substream *substream)
851 {
852 struct via82xx *chip = snd_pcm_substream_chip(substream);
853 struct viadev *viadev = substream->runtime->private_data;
854 unsigned int idx, count, res;
855 int status;
856
857 snd_assert(viadev->tbl_entries, return 0);
858
859 spin_lock(&chip->reg_lock);
860 count = inl(VIADEV_REG(viadev, OFFSET_CURR_COUNT));
861 status = viadev->in_interrupt;
862 if (!status)
863 status = inb(VIADEV_REG(viadev, OFFSET_STATUS));
864
865 if (!(status & VIA_REG_STAT_ACTIVE)) {
866 res = 0;
867 goto unlock;
868 }
869 if (count & 0xffffff) {
870 idx = count >> 24;
871 if (idx >= viadev->tbl_entries) {
872 #ifdef POINTER_DEBUG
873 printk(KERN_DEBUG "fail: invalid idx = %i/%i\n", idx,
874 viadev->tbl_entries);
875 #endif
876 res = viadev->lastpos;
877 } else {
878 count &= 0xffffff;
879 res = calc_linear_pos(viadev, idx, count);
880 }
881 } else {
882 res = viadev->hwptr_done;
883 if (!viadev->in_interrupt) {
884 if (status & VIA_REG_STAT_EOL) {
885 res = 0;
886 } else
887 if (status & VIA_REG_STAT_FLAG) {
888 res += viadev->fragsize;
889 }
890 }
891 }
892 unlock:
893 viadev->lastpos = res;
894 spin_unlock(&chip->reg_lock);
895
896 return bytes_to_frames(substream->runtime, res);
897 }
898
899
900 /*
901 * hw_params callback:
902 * allocate the buffer and build up the buffer description table
903 */
904 static int snd_via82xx_hw_params(struct snd_pcm_substream *substream,
905 struct snd_pcm_hw_params *hw_params)
906 {
907 struct via82xx *chip = snd_pcm_substream_chip(substream);
908 struct viadev *viadev = substream->runtime->private_data;
909 int err;
910
911 err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
912 if (err < 0)
913 return err;
914 err = build_via_table(viadev, substream, chip->pci,
915 params_periods(hw_params),
916 params_period_bytes(hw_params));
917 if (err < 0)
918 return err;
919
920 return 0;
921 }
922
923 /*
924 * hw_free callback:
925 * clean up the buffer description table and release the buffer
926 */
927 static int snd_via82xx_hw_free(struct snd_pcm_substream *substream)
928 {
929 struct via82xx *chip = snd_pcm_substream_chip(substream);
930 struct viadev *viadev = substream->runtime->private_data;
931
932 clean_via_table(viadev, substream, chip->pci);
933 snd_pcm_lib_free_pages(substream);
934 return 0;
935 }
936
937
938 /*
939 * set up the table pointer
940 */
941 static void snd_via82xx_set_table_ptr(struct via82xx *chip, struct viadev *viadev)
942 {
943 snd_via82xx_codec_ready(chip, 0);
944 outl((u32)viadev->table.addr, VIADEV_REG(viadev, OFFSET_TABLE_PTR));
945 udelay(20);
946 snd_via82xx_codec_ready(chip, 0);
947 }
948
949 /*
950 * prepare callback for playback and capture on via686
951 */
952 static void via686_setup_format(struct via82xx *chip, struct viadev *viadev,
953 struct snd_pcm_runtime *runtime)
954 {
955 snd_via82xx_channel_reset(chip, viadev);
956 /* this must be set after channel_reset */
957 snd_via82xx_set_table_ptr(chip, viadev);
958 outb(VIA_REG_TYPE_AUTOSTART |
959 (runtime->format == SNDRV_PCM_FORMAT_S16_LE ? VIA_REG_TYPE_16BIT : 0) |
960 (runtime->channels > 1 ? VIA_REG_TYPE_STEREO : 0) |
961 ((viadev->reg_offset & 0x10) == 0 ? VIA_REG_TYPE_INT_LSAMPLE : 0) |
962 VIA_REG_TYPE_INT_EOL |
963 VIA_REG_TYPE_INT_FLAG, VIADEV_REG(viadev, OFFSET_TYPE));
964 }
965
966 static int snd_via686_playback_prepare(struct snd_pcm_substream *substream)
967 {
968 struct via82xx *chip = snd_pcm_substream_chip(substream);
969 struct viadev *viadev = substream->runtime->private_data;
970 struct snd_pcm_runtime *runtime = substream->runtime;
971
972 snd_ac97_set_rate(chip->ac97, AC97_PCM_FRONT_DAC_RATE, runtime->rate);
973 snd_ac97_set_rate(chip->ac97, AC97_SPDIF, runtime->rate);
974 via686_setup_format(chip, viadev, runtime);
975 return 0;
976 }
977
978 static int snd_via686_capture_prepare(struct snd_pcm_substream *substream)
979 {
980 struct via82xx *chip = snd_pcm_substream_chip(substream);
981 struct viadev *viadev = substream->runtime->private_data;
982 struct snd_pcm_runtime *runtime = substream->runtime;
983
984 snd_ac97_set_rate(chip->ac97, AC97_PCM_LR_ADC_RATE, runtime->rate);
985 via686_setup_format(chip, viadev, runtime);
986 return 0;
987 }
988
989 /*
990 * lock the current rate
991 */
992 static int via_lock_rate(struct via_rate_lock *rec, int rate)
993 {
994 int changed = 0;
995
996 spin_lock_irq(&rec->lock);
997 if (rec->rate != rate) {
998 if (rec->rate && rec->used > 1) /* already set */
999 changed = -EINVAL;
1000 else {
1001 rec->rate = rate;
1002 changed = 1;
1003 }
1004 }
1005 spin_unlock_irq(&rec->lock);
1006 return changed;
1007 }
1008
1009 /*
1010 * prepare callback for DSX playback on via823x
1011 */
1012 static int snd_via8233_playback_prepare(struct snd_pcm_substream *substream)
1013 {
1014 struct via82xx *chip = snd_pcm_substream_chip(substream);
1015 struct viadev *viadev = substream->runtime->private_data;
1016 struct snd_pcm_runtime *runtime = substream->runtime;
1017 int ac97_rate = chip->dxs_src ? 48000 : runtime->rate;
1018 int rate_changed;
1019 u32 rbits;
1020
1021 if ((rate_changed = via_lock_rate(&chip->rates[0], ac97_rate)) < 0)
1022 return rate_changed;
1023 if (rate_changed)
1024 snd_ac97_set_rate(chip->ac97, AC97_PCM_FRONT_DAC_RATE,
1025 chip->no_vra ? 48000 : runtime->rate);
1026 if (chip->spdif_on && viadev->reg_offset == 0x30)
1027 snd_ac97_set_rate(chip->ac97, AC97_SPDIF, runtime->rate);
1028
1029 if (runtime->rate == 48000)
1030 rbits = 0xfffff;
1031 else
1032 rbits = (0x100000 / 48000) * runtime->rate +
1033 ((0x100000 % 48000) * runtime->rate) / 48000;
1034 snd_assert((rbits & ~0xfffff) == 0, return -EINVAL);
1035 snd_via82xx_channel_reset(chip, viadev);
1036 snd_via82xx_set_table_ptr(chip, viadev);
1037 outb(chip->playback_volume[viadev->reg_offset / 0x10][0],
1038 VIADEV_REG(viadev, OFS_PLAYBACK_VOLUME_L));
1039 outb(chip->playback_volume[viadev->reg_offset / 0x10][1],
1040 VIADEV_REG(viadev, OFS_PLAYBACK_VOLUME_R));
1041 outl((runtime->format == SNDRV_PCM_FORMAT_S16_LE ? VIA8233_REG_TYPE_16BIT : 0) | /* format */
1042 (runtime->channels > 1 ? VIA8233_REG_TYPE_STEREO : 0) | /* stereo */
1043 rbits | /* rate */
1044 0xff000000, /* STOP index is never reached */
1045 VIADEV_REG(viadev, OFFSET_STOP_IDX));
1046 udelay(20);
1047 snd_via82xx_codec_ready(chip, 0);
1048 return 0;
1049 }
1050
1051 /*
1052 * prepare callback for multi-channel playback on via823x
1053 */
1054 static int snd_via8233_multi_prepare(struct snd_pcm_substream *substream)
1055 {
1056 struct via82xx *chip = snd_pcm_substream_chip(substream);
1057 struct viadev *viadev = substream->runtime->private_data;
1058 struct snd_pcm_runtime *runtime = substream->runtime;
1059 unsigned int slots;
1060 int fmt;
1061
1062 if (via_lock_rate(&chip->rates[0], runtime->rate) < 0)
1063 return -EINVAL;
1064 snd_ac97_set_rate(chip->ac97, AC97_PCM_FRONT_DAC_RATE, runtime->rate);
1065 snd_ac97_set_rate(chip->ac97, AC97_PCM_SURR_DAC_RATE, runtime->rate);
1066 snd_ac97_set_rate(chip->ac97, AC97_PCM_LFE_DAC_RATE, runtime->rate);
1067 snd_ac97_set_rate(chip->ac97, AC97_SPDIF, runtime->rate);
1068 snd_via82xx_channel_reset(chip, viadev);
1069 snd_via82xx_set_table_ptr(chip, viadev);
1070
1071 fmt = (runtime->format == SNDRV_PCM_FORMAT_S16_LE) ?
1072 VIA_REG_MULTPLAY_FMT_16BIT : VIA_REG_MULTPLAY_FMT_8BIT;
1073 fmt |= runtime->channels << 4;
1074 outb(fmt, VIADEV_REG(viadev, OFS_MULTPLAY_FORMAT));
1075 #if 0
1076 if (chip->revision == VIA_REV_8233A)
1077 slots = 0;
1078 else
1079 #endif
1080 {
1081 /* set sample number to slot 3, 4, 7, 8, 6, 9 (for VIA8233/C,8235) */
1082 /* corresponding to FL, FR, RL, RR, C, LFE ?? */
1083 switch (runtime->channels) {
1084 case 1: slots = (1<<0) | (1<<4); break;
1085 case 2: slots = (1<<0) | (2<<4); break;
1086 case 3: slots = (1<<0) | (2<<4) | (5<<8); break;
1087 case 4: slots = (1<<0) | (2<<4) | (3<<8) | (4<<12); break;
1088 case 5: slots = (1<<0) | (2<<4) | (3<<8) | (4<<12) | (5<<16); break;
1089 case 6: slots = (1<<0) | (2<<4) | (3<<8) | (4<<12) | (5<<16) | (6<<20); break;
1090 default: slots = 0; break;
1091 }
1092 }
1093 /* STOP index is never reached */
1094 outl(0xff000000 | slots, VIADEV_REG(viadev, OFFSET_STOP_IDX));
1095 udelay(20);
1096 snd_via82xx_codec_ready(chip, 0);
1097 return 0;
1098 }
1099
1100 /*
1101 * prepare callback for capture on via823x
1102 */
1103 static int snd_via8233_capture_prepare(struct snd_pcm_substream *substream)
1104 {
1105 struct via82xx *chip = snd_pcm_substream_chip(substream);
1106 struct viadev *viadev = substream->runtime->private_data;
1107 struct snd_pcm_runtime *runtime = substream->runtime;
1108
1109 if (via_lock_rate(&chip->rates[1], runtime->rate) < 0)
1110 return -EINVAL;
1111 snd_ac97_set_rate(chip->ac97, AC97_PCM_LR_ADC_RATE, runtime->rate);
1112 snd_via82xx_channel_reset(chip, viadev);
1113 snd_via82xx_set_table_ptr(chip, viadev);
1114 outb(VIA_REG_CAPTURE_FIFO_ENABLE, VIADEV_REG(viadev, OFS_CAPTURE_FIFO));
1115 outl((runtime->format == SNDRV_PCM_FORMAT_S16_LE ? VIA8233_REG_TYPE_16BIT : 0) |
1116 (runtime->channels > 1 ? VIA8233_REG_TYPE_STEREO : 0) |
1117 0xff000000, /* STOP index is never reached */
1118 VIADEV_REG(viadev, OFFSET_STOP_IDX));
1119 udelay(20);
1120 snd_via82xx_codec_ready(chip, 0);
1121 return 0;
1122 }
1123
1124
1125 /*
1126 * pcm hardware definition, identical for both playback and capture
1127 */
1128 static struct snd_pcm_hardware snd_via82xx_hw =
1129 {
1130 .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1131 SNDRV_PCM_INFO_BLOCK_TRANSFER |
1132 SNDRV_PCM_INFO_MMAP_VALID |
1133 /* SNDRV_PCM_INFO_RESUME | */
1134 SNDRV_PCM_INFO_PAUSE),
1135 .formats = SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
1136 .rates = SNDRV_PCM_RATE_48000,
1137 .rate_min = 48000,
1138 .rate_max = 48000,
1139 .channels_min = 1,
1140 .channels_max = 2,
1141 .buffer_bytes_max = 128 * 1024,
1142 .period_bytes_min = 32,
1143 .period_bytes_max = 128 * 1024,
1144 .periods_min = 2,
1145 .periods_max = VIA_TABLE_SIZE / 2,
1146 .fifo_size = 0,
1147 };
1148
1149
1150 /*
1151 * open callback skeleton
1152 */
1153 static int snd_via82xx_pcm_open(struct via82xx *chip, struct viadev *viadev,
1154 struct snd_pcm_substream *substream)
1155 {
1156 struct snd_pcm_runtime *runtime = substream->runtime;
1157 int err;
1158 struct via_rate_lock *ratep;
1159
1160 runtime->hw = snd_via82xx_hw;
1161
1162 /* set the hw rate condition */
1163 ratep = &chip->rates[viadev->direction];
1164 spin_lock_irq(&ratep->lock);
1165 ratep->used++;
1166 if (chip->spdif_on && viadev->reg_offset == 0x30) {
1167 /* DXS#3 and spdif is on */
1168 runtime->hw.rates = chip->ac97->rates[AC97_RATES_SPDIF];
1169 snd_pcm_limit_hw_rates(runtime);
1170 } else if (chip->dxs_fixed && viadev->reg_offset < 0x40) {
1171 /* fixed DXS playback rate */
1172 runtime->hw.rates = SNDRV_PCM_RATE_48000;
1173 runtime->hw.rate_min = runtime->hw.rate_max = 48000;
1174 } else if (chip->dxs_src && viadev->reg_offset < 0x40) {
1175 /* use full SRC capabilities of DXS */
1176 runtime->hw.rates = (SNDRV_PCM_RATE_CONTINUOUS |
1177 SNDRV_PCM_RATE_8000_48000);
1178 runtime->hw.rate_min = 8000;
1179 runtime->hw.rate_max = 48000;
1180 } else if (! ratep->rate) {
1181 int idx = viadev->direction ? AC97_RATES_ADC : AC97_RATES_FRONT_DAC;
1182 runtime->hw.rates = chip->ac97->rates[idx];
1183 snd_pcm_limit_hw_rates(runtime);
1184 } else {
1185 /* a fixed rate */
1186 runtime->hw.rates = SNDRV_PCM_RATE_KNOT;
1187 runtime->hw.rate_max = runtime->hw.rate_min = ratep->rate;
1188 }
1189 spin_unlock_irq(&ratep->lock);
1190
1191 /* we may remove following constaint when we modify table entries
1192 in interrupt */
1193 if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
1194 return err;
1195
1196 runtime->private_data = viadev;
1197 viadev->substream = substream;
1198
1199 return 0;
1200 }
1201
1202
1203 /*
1204 * open callback for playback on via686 and via823x DSX
1205 */
1206 static int snd_via82xx_playback_open(struct snd_pcm_substream *substream)
1207 {
1208 struct via82xx *chip = snd_pcm_substream_chip(substream);
1209 struct viadev *viadev = &chip->devs[chip->playback_devno + substream->number];
1210 int err;
1211
1212 if ((err = snd_via82xx_pcm_open(chip, viadev, substream)) < 0)
1213 return err;
1214 return 0;
1215 }
1216
1217 /*
1218 * open callback for playback on via823x multi-channel
1219 */
1220 static int snd_via8233_multi_open(struct snd_pcm_substream *substream)
1221 {
1222 struct via82xx *chip = snd_pcm_substream_chip(substream);
1223 struct viadev *viadev = &chip->devs[chip->multi_devno];
1224 int err;
1225 /* channels constraint for VIA8233A
1226 * 3 and 5 channels are not supported
1227 */
1228 static unsigned int channels[] = {
1229 1, 2, 4, 6
1230 };
1231 static struct snd_pcm_hw_constraint_list hw_constraints_channels = {
1232 .count = ARRAY_SIZE(channels),
1233 .list = channels,
1234 .mask = 0,
1235 };
1236
1237 if ((err = snd_via82xx_pcm_open(chip, viadev, substream)) < 0)
1238 return err;
1239 substream->runtime->hw.channels_max = 6;
1240 if (chip->revision == VIA_REV_8233A)
1241 snd_pcm_hw_constraint_list(substream->runtime, 0,
1242 SNDRV_PCM_HW_PARAM_CHANNELS,
1243 &hw_constraints_channels);
1244 return 0;
1245 }
1246
1247 /*
1248 * open callback for capture on via686 and via823x
1249 */
1250 static int snd_via82xx_capture_open(struct snd_pcm_substream *substream)
1251 {
1252 struct via82xx *chip = snd_pcm_substream_chip(substream);
1253 struct viadev *viadev = &chip->devs[chip->capture_devno + substream->pcm->device];
1254
1255 return snd_via82xx_pcm_open(chip, viadev, substream);
1256 }
1257
1258 /*
1259 * close callback
1260 */
1261 static int snd_via82xx_pcm_close(struct snd_pcm_substream *substream)
1262 {
1263 struct via82xx *chip = snd_pcm_substream_chip(substream);
1264 struct viadev *viadev = substream->runtime->private_data;
1265 struct via_rate_lock *ratep;
1266
1267 /* release the rate lock */
1268 ratep = &chip->rates[viadev->direction];
1269 spin_lock_irq(&ratep->lock);
1270 ratep->used--;
1271 if (! ratep->used)
1272 ratep->rate = 0;
1273 spin_unlock_irq(&ratep->lock);
1274
1275 viadev->substream = NULL;
1276 return 0;
1277 }
1278
1279
1280 /* via686 playback callbacks */
1281 static struct snd_pcm_ops snd_via686_playback_ops = {
1282 .open = snd_via82xx_playback_open,
1283 .close = snd_via82xx_pcm_close,
1284 .ioctl = snd_pcm_lib_ioctl,
1285 .hw_params = snd_via82xx_hw_params,
1286 .hw_free = snd_via82xx_hw_free,
1287 .prepare = snd_via686_playback_prepare,
1288 .trigger = snd_via82xx_pcm_trigger,
1289 .pointer = snd_via686_pcm_pointer,
1290 .page = snd_pcm_sgbuf_ops_page,
1291 };
1292
1293 /* via686 capture callbacks */
1294 static struct snd_pcm_ops snd_via686_capture_ops = {
1295 .open = snd_via82xx_capture_open,
1296 .close = snd_via82xx_pcm_close,
1297 .ioctl = snd_pcm_lib_ioctl,
1298 .hw_params = snd_via82xx_hw_params,
1299 .hw_free = snd_via82xx_hw_free,
1300 .prepare = snd_via686_capture_prepare,
1301 .trigger = snd_via82xx_pcm_trigger,
1302 .pointer = snd_via686_pcm_pointer,
1303 .page = snd_pcm_sgbuf_ops_page,
1304 };
1305
1306 /* via823x DSX playback callbacks */
1307 static struct snd_pcm_ops snd_via8233_playback_ops = {
1308 .open = snd_via82xx_playback_open,
1309 .close = snd_via82xx_pcm_close,
1310 .ioctl = snd_pcm_lib_ioctl,
1311 .hw_params = snd_via82xx_hw_params,
1312 .hw_free = snd_via82xx_hw_free,
1313 .prepare = snd_via8233_playback_prepare,
1314 .trigger = snd_via82xx_pcm_trigger,
1315 .pointer = snd_via8233_pcm_pointer,
1316 .page = snd_pcm_sgbuf_ops_page,
1317 };
1318
1319 /* via823x multi-channel playback callbacks */
1320 static struct snd_pcm_ops snd_via8233_multi_ops = {
1321 .open = snd_via8233_multi_open,
1322 .close = snd_via82xx_pcm_close,
1323 .ioctl = snd_pcm_lib_ioctl,
1324 .hw_params = snd_via82xx_hw_params,
1325 .hw_free = snd_via82xx_hw_free,
1326 .prepare = snd_via8233_multi_prepare,
1327 .trigger = snd_via82xx_pcm_trigger,
1328 .pointer = snd_via8233_pcm_pointer,
1329 .page = snd_pcm_sgbuf_ops_page,
1330 };
1331
1332 /* via823x capture callbacks */
1333 static struct snd_pcm_ops snd_via8233_capture_ops = {
1334 .open = snd_via82xx_capture_open,
1335 .close = snd_via82xx_pcm_close,
1336 .ioctl = snd_pcm_lib_ioctl,
1337 .hw_params = snd_via82xx_hw_params,
1338 .hw_free = snd_via82xx_hw_free,
1339 .prepare = snd_via8233_capture_prepare,
1340 .trigger = snd_via82xx_pcm_trigger,
1341 .pointer = snd_via8233_pcm_pointer,
1342 .page = snd_pcm_sgbuf_ops_page,
1343 };
1344
1345
1346 static void init_viadev(struct via82xx *chip, int idx, unsigned int reg_offset,
1347 int shadow_pos, int direction)
1348 {
1349 chip->devs[idx].reg_offset = reg_offset;
1350 chip->devs[idx].shadow_shift = shadow_pos * 4;
1351 chip->devs[idx].direction = direction;
1352 chip->devs[idx].port = chip->port + reg_offset;
1353 }
1354
1355 /*
1356 * create pcm instances for VIA8233, 8233C and 8235 (not 8233A)
1357 */
1358 static int __devinit snd_via8233_pcm_new(struct via82xx *chip)
1359 {
1360 struct snd_pcm *pcm;
1361 int i, err;
1362
1363 chip->playback_devno = 0; /* x 4 */
1364 chip->multi_devno = 4; /* x 1 */
1365 chip->capture_devno = 5; /* x 2 */
1366 chip->num_devs = 7;
1367 chip->intr_mask = 0x33033333; /* FLAG|EOL for rec0-1, mc, sdx0-3 */
1368
1369 /* PCM #0: 4 DSX playbacks and 1 capture */
1370 err = snd_pcm_new(chip->card, chip->card->shortname, 0, 4, 1, &pcm);
1371 if (err < 0)
1372 return err;
1373 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_via8233_playback_ops);
1374 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_via8233_capture_ops);
1375 pcm->private_data = chip;
1376 strcpy(pcm->name, chip->card->shortname);
1377 chip->pcms[0] = pcm;
1378 /* set up playbacks */
1379 for (i = 0; i < 4; i++)
1380 init_viadev(chip, i, 0x10 * i, i, 0);
1381 /* capture */
1382 init_viadev(chip, chip->capture_devno, VIA_REG_CAPTURE_8233_STATUS, 6, 1);
1383
1384 if ((err = snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
1385 snd_dma_pci_data(chip->pci),
1386 64*1024, 128*1024)) < 0)
1387 return err;
1388
1389 /* PCM #1: multi-channel playback and 2nd capture */
1390 err = snd_pcm_new(chip->card, chip->card->shortname, 1, 1, 1, &pcm);
1391 if (err < 0)
1392 return err;
1393 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_via8233_multi_ops);
1394 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_via8233_capture_ops);
1395 pcm->private_data = chip;
1396 strcpy(pcm->name, chip->card->shortname);
1397 chip->pcms[1] = pcm;
1398 /* set up playback */
1399 init_viadev(chip, chip->multi_devno, VIA_REG_MULTPLAY_STATUS, 4, 0);
1400 /* set up capture */
1401 init_viadev(chip, chip->capture_devno + 1, VIA_REG_CAPTURE_8233_STATUS + 0x10, 7, 1);
1402
1403 if ((err = snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
1404 snd_dma_pci_data(chip->pci),
1405 64*1024, 128*1024)) < 0)
1406 return err;
1407
1408 return 0;
1409 }
1410
1411 /*
1412 * create pcm instances for VIA8233A
1413 */
1414 static int __devinit snd_via8233a_pcm_new(struct via82xx *chip)
1415 {
1416 struct snd_pcm *pcm;
1417 int err;
1418
1419 chip->multi_devno = 0;
1420 chip->playback_devno = 1;
1421 chip->capture_devno = 2;
1422 chip->num_devs = 3;
1423 chip->intr_mask = 0x03033000; /* FLAG|EOL for rec0, mc, sdx3 */
1424
1425 /* PCM #0: multi-channel playback and capture */
1426 err = snd_pcm_new(chip->card, chip->card->shortname, 0, 1, 1, &pcm);
1427 if (err < 0)
1428 return err;
1429 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_via8233_multi_ops);
1430 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_via8233_capture_ops);
1431 pcm->private_data = chip;
1432 strcpy(pcm->name, chip->card->shortname);
1433 chip->pcms[0] = pcm;
1434 /* set up playback */
1435 init_viadev(chip, chip->multi_devno, VIA_REG_MULTPLAY_STATUS, 4, 0);
1436 /* capture */
1437 init_viadev(chip, chip->capture_devno, VIA_REG_CAPTURE_8233_STATUS, 6, 1);
1438
1439 if ((err = snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
1440 snd_dma_pci_data(chip->pci),
1441 64*1024, 128*1024)) < 0)
1442 return err;
1443
1444 /* SPDIF supported? */
1445 if (! ac97_can_spdif(chip->ac97))
1446 return 0;
1447
1448 /* PCM #1: DXS3 playback (for spdif) */
1449 err = snd_pcm_new(chip->card, chip->card->shortname, 1, 1, 0, &pcm);
1450 if (err < 0)
1451 return err;
1452 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_via8233_playback_ops);
1453 pcm->private_data = chip;
1454 strcpy(pcm->name, chip->card->shortname);
1455 chip->pcms[1] = pcm;
1456 /* set up playback */
1457 init_viadev(chip, chip->playback_devno, 0x30, 3, 0);
1458
1459 if ((err = snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
1460 snd_dma_pci_data(chip->pci),
1461 64*1024, 128*1024)) < 0)
1462 return err;
1463
1464 return 0;
1465 }
1466
1467 /*
1468 * create a pcm instance for via686a/b
1469 */
1470 static int __devinit snd_via686_pcm_new(struct via82xx *chip)
1471 {
1472 struct snd_pcm *pcm;
1473 int err;
1474
1475 chip->playback_devno = 0;
1476 chip->capture_devno = 1;
1477 chip->num_devs = 2;
1478 chip->intr_mask = 0x77; /* FLAG | EOL for PB, CP, FM */
1479
1480 err = snd_pcm_new(chip->card, chip->card->shortname, 0, 1, 1, &pcm);
1481 if (err < 0)
1482 return err;
1483 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_via686_playback_ops);
1484 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_via686_capture_ops);
1485 pcm->private_data = chip;
1486 strcpy(pcm->name, chip->card->shortname);
1487 chip->pcms[0] = pcm;
1488 init_viadev(chip, 0, VIA_REG_PLAYBACK_STATUS, 0, 0);
1489 init_viadev(chip, 1, VIA_REG_CAPTURE_STATUS, 0, 1);
1490
1491 if ((err = snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
1492 snd_dma_pci_data(chip->pci),
1493 64*1024, 128*1024)) < 0)
1494 return err;
1495
1496 return 0;
1497 }
1498
1499
1500 /*
1501 * Mixer part
1502 */
1503
1504 static int snd_via8233_capture_source_info(struct snd_kcontrol *kcontrol,
1505 struct snd_ctl_elem_info *uinfo)
1506 {
1507 /* formerly they were "Line" and "Mic", but it looks like that they
1508 * have nothing to do with the actual physical connections...
1509 */
1510 static char *texts[2] = {
1511 "Input1", "Input2"
1512 };
1513 uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
1514 uinfo->count = 1;
1515 uinfo->value.enumerated.items = 2;
1516 if (uinfo->value.enumerated.item >= 2)
1517 uinfo->value.enumerated.item = 1;
1518 strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
1519 return 0;
1520 }
1521
1522 static int snd_via8233_capture_source_get(struct snd_kcontrol *kcontrol,
1523 struct snd_ctl_elem_value *ucontrol)
1524 {
1525 struct via82xx *chip = snd_kcontrol_chip(kcontrol);
1526 unsigned long port = chip->port + (kcontrol->id.index ? (VIA_REG_CAPTURE_CHANNEL + 0x10) : VIA_REG_CAPTURE_CHANNEL);
1527 ucontrol->value.enumerated.item[0] = inb(port) & VIA_REG_CAPTURE_CHANNEL_MIC ? 1 : 0;
1528 return 0;
1529 }
1530
1531 static int snd_via8233_capture_source_put(struct snd_kcontrol *kcontrol,
1532 struct snd_ctl_elem_value *ucontrol)
1533 {
1534 struct via82xx *chip = snd_kcontrol_chip(kcontrol);
1535 unsigned long port = chip->port + (kcontrol->id.index ? (VIA_REG_CAPTURE_CHANNEL + 0x10) : VIA_REG_CAPTURE_CHANNEL);
1536 u8 val, oval;
1537
1538 spin_lock_irq(&chip->reg_lock);
1539 oval = inb(port);
1540 val = oval & ~VIA_REG_CAPTURE_CHANNEL_MIC;
1541 if (ucontrol->value.enumerated.item[0])
1542 val |= VIA_REG_CAPTURE_CHANNEL_MIC;
1543 if (val != oval)
1544 outb(val, port);
1545 spin_unlock_irq(&chip->reg_lock);
1546 return val != oval;
1547 }
1548
1549 static struct snd_kcontrol_new snd_via8233_capture_source __devinitdata = {
1550 .name = "Input Source Select",
1551 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1552 .info = snd_via8233_capture_source_info,
1553 .get = snd_via8233_capture_source_get,
1554 .put = snd_via8233_capture_source_put,
1555 };
1556
1557 static int snd_via8233_dxs3_spdif_info(struct snd_kcontrol *kcontrol,
1558 struct snd_ctl_elem_info *uinfo)
1559 {
1560 uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
1561 uinfo->count = 1;
1562 uinfo->value.integer.min = 0;
1563 uinfo->value.integer.max = 1;
1564 return 0;
1565 }
1566
1567 static int snd_via8233_dxs3_spdif_get(struct snd_kcontrol *kcontrol,
1568 struct snd_ctl_elem_value *ucontrol)
1569 {
1570 struct via82xx *chip = snd_kcontrol_chip(kcontrol);
1571 u8 val;
1572
1573 pci_read_config_byte(chip->pci, VIA8233_SPDIF_CTRL, &val);
1574 ucontrol->value.integer.value[0] = (val & VIA8233_SPDIF_DX3) ? 1 : 0;
1575 return 0;
1576 }
1577
1578 static int snd_via8233_dxs3_spdif_put(struct snd_kcontrol *kcontrol,
1579 struct snd_ctl_elem_value *ucontrol)
1580 {
1581 struct via82xx *chip = snd_kcontrol_chip(kcontrol);
1582 u8 val, oval;
1583
1584 pci_read_config_byte(chip->pci, VIA8233_SPDIF_CTRL, &oval);
1585 val = oval & ~VIA8233_SPDIF_DX3;
1586 if (ucontrol->value.integer.value[0])
1587 val |= VIA8233_SPDIF_DX3;
1588 /* save the spdif flag for rate filtering */
1589 chip->spdif_on = ucontrol->value.integer.value[0] ? 1 : 0;
1590 if (val != oval) {
1591 pci_write_config_byte(chip->pci, VIA8233_SPDIF_CTRL, val);
1592 return 1;
1593 }
1594 return 0;
1595 }
1596
1597 static struct snd_kcontrol_new snd_via8233_dxs3_spdif_control __devinitdata = {
1598 .name = SNDRV_CTL_NAME_IEC958("Output ",NONE,SWITCH),
1599 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1600 .info = snd_via8233_dxs3_spdif_info,
1601 .get = snd_via8233_dxs3_spdif_get,
1602 .put = snd_via8233_dxs3_spdif_put,
1603 };
1604
1605 static int snd_via8233_dxs_volume_info(struct snd_kcontrol *kcontrol,
1606 struct snd_ctl_elem_info *uinfo)
1607 {
1608 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
1609 uinfo->count = 2;
1610 uinfo->value.integer.min = 0;
1611 uinfo->value.integer.max = VIA_DXS_MAX_VOLUME;
1612 return 0;
1613 }
1614
1615 static int snd_via8233_dxs_volume_get(struct snd_kcontrol *kcontrol,
1616 struct snd_ctl_elem_value *ucontrol)
1617 {
1618 struct via82xx *chip = snd_kcontrol_chip(kcontrol);
1619 unsigned int idx = snd_ctl_get_ioff(kcontrol, &ucontrol->id);
1620
1621 ucontrol->value.integer.value[0] = VIA_DXS_MAX_VOLUME - chip->playback_volume[idx][0];
1622 ucontrol->value.integer.value[1] = VIA_DXS_MAX_VOLUME - chip->playback_volume[idx][1];
1623 return 0;
1624 }
1625
1626 static int snd_via8233_pcmdxs_volume_get(struct snd_kcontrol *kcontrol,
1627 struct snd_ctl_elem_value *ucontrol)
1628 {
1629 struct via82xx *chip = snd_kcontrol_chip(kcontrol);
1630 ucontrol->value.integer.value[0] = VIA_DXS_MAX_VOLUME - chip->playback_volume_c[0];
1631 ucontrol->value.integer.value[1] = VIA_DXS_MAX_VOLUME - chip->playback_volume_c[1];
1632 return 0;
1633 }
1634
1635 static int snd_via8233_dxs_volume_put(struct snd_kcontrol *kcontrol,
1636 struct snd_ctl_elem_value *ucontrol)
1637 {
1638 struct via82xx *chip = snd_kcontrol_chip(kcontrol);
1639 unsigned int idx = snd_ctl_get_ioff(kcontrol, &ucontrol->id);
1640 unsigned long port = chip->port + 0x10 * idx;
1641 unsigned char val;
1642 int i, change = 0;
1643
1644 for (i = 0; i < 2; i++) {
1645 val = ucontrol->value.integer.value[i];
1646 if (val > VIA_DXS_MAX_VOLUME)
1647 val = VIA_DXS_MAX_VOLUME;
1648 val = VIA_DXS_MAX_VOLUME - val;
1649 change |= val != chip->playback_volume[idx][i];
1650 if (change) {
1651 chip->playback_volume[idx][i] = val;
1652 outb(val, port + VIA_REG_OFS_PLAYBACK_VOLUME_L + i);
1653 }
1654 }
1655 return change;
1656 }
1657
1658 static int snd_via8233_pcmdxs_volume_put(struct snd_kcontrol *kcontrol,
1659 struct snd_ctl_elem_value *ucontrol)
1660 {
1661 struct via82xx *chip = snd_kcontrol_chip(kcontrol);
1662 unsigned int idx;
1663 unsigned char val;
1664 int i, change = 0;
1665
1666 for (i = 0; i < 2; i++) {
1667 val = ucontrol->value.integer.value[i];
1668 if (val > VIA_DXS_MAX_VOLUME)
1669 val = VIA_DXS_MAX_VOLUME;
1670 val = VIA_DXS_MAX_VOLUME - val;
1671 if (val != chip->playback_volume_c[i]) {
1672 change = 1;
1673 chip->playback_volume_c[i] = val;
1674 for (idx = 0; idx < 4; idx++) {
1675 unsigned long port = chip->port + 0x10 * idx;
1676 chip->playback_volume[idx][i] = val;
1677 outb(val, port + VIA_REG_OFS_PLAYBACK_VOLUME_L + i);
1678 }
1679 }
1680 }
1681 return change;
1682 }
1683
1684 static struct snd_kcontrol_new snd_via8233_pcmdxs_volume_control __devinitdata = {
1685 .name = "PCM Playback Volume",
1686 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1687 .info = snd_via8233_dxs_volume_info,
1688 .get = snd_via8233_pcmdxs_volume_get,
1689 .put = snd_via8233_pcmdxs_volume_put,
1690 };
1691
1692 static struct snd_kcontrol_new snd_via8233_dxs_volume_control __devinitdata = {
1693 .name = "VIA DXS Playback Volume",
1694 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1695 .count = 4,
1696 .info = snd_via8233_dxs_volume_info,
1697 .get = snd_via8233_dxs_volume_get,
1698 .put = snd_via8233_dxs_volume_put,
1699 };
1700
1701 /*
1702 */
1703
1704 static void snd_via82xx_mixer_free_ac97_bus(struct snd_ac97_bus *bus)
1705 {
1706 struct via82xx *chip = bus->private_data;
1707 chip->ac97_bus = NULL;
1708 }
1709
1710 static void snd_via82xx_mixer_free_ac97(struct snd_ac97 *ac97)
1711 {
1712 struct via82xx *chip = ac97->private_data;
1713 chip->ac97 = NULL;
1714 }
1715
1716 static struct ac97_quirk ac97_quirks[] = {
1717 {
1718 .subvendor = 0x1106,
1719 .subdevice = 0x4161,
1720 .codec_id = 0x56494161, /* VT1612A */
1721 .name = "Soltek SL-75DRV5",
1722 .type = AC97_TUNE_NONE
1723 },
1724 { /* FIXME: which codec? */
1725 .subvendor = 0x1106,
1726 .subdevice = 0x4161,
1727 .name = "ASRock K7VT2",
1728 .type = AC97_TUNE_HP_ONLY
1729 },
1730 {
1731 .subvendor = 0x1019,
1732 .subdevice = 0x0a81,
1733 .name = "ECS K7VTA3",
1734 .type = AC97_TUNE_HP_ONLY
1735 },
1736 {
1737 .subvendor = 0x1019,
1738 .subdevice = 0x0a85,
1739 .name = "ECS L7VMM2",
1740 .type = AC97_TUNE_HP_ONLY
1741 },
1742 {
1743 .subvendor = 0x1849,
1744 .subdevice = 0x3059,
1745 .name = "ASRock K7VM2",
1746 .type = AC97_TUNE_HP_ONLY /* VT1616 */
1747 },
1748 {
1749 .subvendor = 0x14cd,
1750 .subdevice = 0x7002,
1751 .name = "Unknown",
1752 .type = AC97_TUNE_ALC_JACK
1753 },
1754 {
1755 .subvendor = 0x1071,
1756 .subdevice = 0x8590,
1757 .name = "Mitac Mobo",
1758 .type = AC97_TUNE_ALC_JACK
1759 },
1760 {
1761 .subvendor = 0x161f,
1762 .subdevice = 0x202b,
1763 .name = "Arima Notebook",
1764 .type = AC97_TUNE_HP_ONLY,
1765 },
1766 { } /* terminator */
1767 };
1768
1769 static int __devinit snd_via82xx_mixer_new(struct via82xx *chip, const char *quirk_override)
1770 {
1771 struct snd_ac97_template ac97;
1772 int err;
1773 static struct snd_ac97_bus_ops ops = {
1774 .write = snd_via82xx_codec_write,
1775 .read = snd_via82xx_codec_read,
1776 .wait = snd_via82xx_codec_wait,
1777 };
1778
1779 if ((err = snd_ac97_bus(chip->card, 0, &ops, chip, &chip->ac97_bus)) < 0)
1780 return err;
1781 chip->ac97_bus->private_free = snd_via82xx_mixer_free_ac97_bus;
1782 chip->ac97_bus->clock = chip->ac97_clock;
1783
1784 memset(&ac97, 0, sizeof(ac97));
1785 ac97.private_data = chip;
1786 ac97.private_free = snd_via82xx_mixer_free_ac97;
1787 ac97.pci = chip->pci;
1788 ac97.scaps = AC97_SCAP_SKIP_MODEM;
1789 if ((err = snd_ac97_mixer(chip->ac97_bus, &ac97, &chip->ac97)) < 0)
1790 return err;
1791
1792 snd_ac97_tune_hardware(chip->ac97, ac97_quirks, quirk_override);
1793
1794 if (chip->chip_type != TYPE_VIA686) {
1795 /* use slot 10/11 */
1796 snd_ac97_update_bits(chip->ac97, AC97_EXTENDED_STATUS, 0x03 << 4, 0x03 << 4);
1797 }
1798
1799 return 0;
1800 }
1801
1802 #ifdef SUPPORT_JOYSTICK
1803 #define JOYSTICK_ADDR 0x200
1804 static int __devinit snd_via686_create_gameport(struct via82xx *chip, unsigned char *legacy)
1805 {
1806 struct gameport *gp;
1807 struct resource *r;
1808
1809 if (!joystick)
1810 return -ENODEV;
1811
1812 r = request_region(JOYSTICK_ADDR, 8, "VIA686 gameport");
1813 if (!r) {
1814 printk(KERN_WARNING "via82xx: cannot reserve joystick port 0x%#x\n",
1815 JOYSTICK_ADDR);
1816 return -EBUSY;
1817 }
1818
1819 chip->gameport = gp = gameport_allocate_port();
1820 if (!gp) {
1821 printk(KERN_ERR "via82xx: cannot allocate memory for gameport\n");
1822 release_and_free_resource(r);
1823 return -ENOMEM;
1824 }
1825
1826 gameport_set_name(gp, "VIA686 Gameport");
1827 gameport_set_phys(gp, "pci%s/gameport0", pci_name(chip->pci));
1828 gameport_set_dev_parent(gp, &chip->pci->dev);
1829 gp->io = JOYSTICK_ADDR;
1830 gameport_set_port_data(gp, r);
1831
1832 /* Enable legacy joystick port */
1833 *legacy |= VIA_FUNC_ENABLE_GAME;
1834 pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE, *legacy);
1835
1836 gameport_register_port(chip->gameport);
1837
1838 return 0;
1839 }
1840
1841 static void snd_via686_free_gameport(struct via82xx *chip)
1842 {
1843 if (chip->gameport) {
1844 struct resource *r = gameport_get_port_data(chip->gameport);
1845
1846 gameport_unregister_port(chip->gameport);
1847 chip->gameport = NULL;
1848 release_and_free_resource(r);
1849 }
1850 }
1851 #else
1852 static inline int snd_via686_create_gameport(struct via82xx *chip, unsigned char *legacy)
1853 {
1854 return -ENOSYS;
1855 }
1856 static inline void snd_via686_free_gameport(struct via82xx *chip) { }
1857 #endif
1858
1859
1860 /*
1861 *
1862 */
1863
1864 static int __devinit snd_via8233_init_misc(struct via82xx *chip)
1865 {
1866 int i, err, caps;
1867 unsigned char val;
1868
1869 caps = chip->chip_type == TYPE_VIA8233A ? 1 : 2;
1870 for (i = 0; i < caps; i++) {
1871 snd_via8233_capture_source.index = i;
1872 err = snd_ctl_add(chip->card, snd_ctl_new1(&snd_via8233_capture_source, chip));
1873 if (err < 0)
1874 return err;
1875 }
1876 if (ac97_can_spdif(chip->ac97)) {
1877 err = snd_ctl_add(chip->card, snd_ctl_new1(&snd_via8233_dxs3_spdif_control, chip));
1878 if (err < 0)
1879 return err;
1880 }
1881 if (chip->chip_type != TYPE_VIA8233A) {
1882 /* when no h/w PCM volume control is found, use DXS volume control
1883 * as the PCM vol control
1884 */
1885 struct snd_ctl_elem_id sid;
1886 memset(&sid, 0, sizeof(sid));
1887 strcpy(sid.name, "PCM Playback Volume");
1888 sid.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
1889 if (! snd_ctl_find_id(chip->card, &sid)) {
1890 snd_printd(KERN_INFO "Using DXS as PCM Playback\n");
1891 err = snd_ctl_add(chip->card, snd_ctl_new1(&snd_via8233_pcmdxs_volume_control, chip));
1892 if (err < 0)
1893 return err;
1894 }
1895 else /* Using DXS when PCM emulation is enabled is really weird */
1896 {
1897 /* Standalone DXS controls */
1898 err = snd_ctl_add(chip->card, snd_ctl_new1(&snd_via8233_dxs_volume_control, chip));
1899 if (err < 0)
1900 return err;
1901 }
1902 }
1903 /* select spdif data slot 10/11 */
1904 pci_read_config_byte(chip->pci, VIA8233_SPDIF_CTRL, &val);
1905 val = (val & ~VIA8233_SPDIF_SLOT_MASK) | VIA8233_SPDIF_SLOT_1011;
1906 val &= ~VIA8233_SPDIF_DX3; /* SPDIF off as default */
1907 pci_write_config_byte(chip->pci, VIA8233_SPDIF_CTRL, val);
1908
1909 return 0;
1910 }
1911
1912 static int __devinit snd_via686_init_misc(struct via82xx *chip)
1913 {
1914 unsigned char legacy, legacy_cfg;
1915 int rev_h = 0;
1916
1917 legacy = chip->old_legacy;
1918 legacy_cfg = chip->old_legacy_cfg;
1919 legacy |= VIA_FUNC_MIDI_IRQMASK; /* FIXME: correct? (disable MIDI) */
1920 legacy &= ~VIA_FUNC_ENABLE_GAME; /* disable joystick */
1921 if (chip->revision >= VIA_REV_686_H) {
1922 rev_h = 1;
1923 if (mpu_port >= 0x200) { /* force MIDI */
1924 mpu_port &= 0xfffc;
1925 pci_write_config_dword(chip->pci, 0x18, mpu_port | 0x01);
1926 #ifdef CONFIG_PM
1927 chip->mpu_port_saved = mpu_port;
1928 #endif
1929 } else {
1930 mpu_port = pci_resource_start(chip->pci, 2);
1931 }
1932 } else {
1933 switch (mpu_port) { /* force MIDI */
1934 case 0x300:
1935 case 0x310:
1936 case 0x320:
1937 case 0x330:
1938 legacy_cfg &= ~(3 << 2);
1939 legacy_cfg |= (mpu_port & 0x0030) >> 2;
1940 break;
1941 default: /* no, use BIOS settings */
1942 if (legacy & VIA_FUNC_ENABLE_MIDI)
1943 mpu_port = 0x300 + ((legacy_cfg & 0x000c) << 2);
1944 break;
1945 }
1946 }
1947 if (mpu_port >= 0x200 &&
1948 (chip->mpu_res = request_region(mpu_port, 2, "VIA82xx MPU401"))
1949 != NULL) {
1950 if (rev_h)
1951 legacy |= VIA_FUNC_MIDI_PNP; /* enable PCI I/O 2 */
1952 legacy |= VIA_FUNC_ENABLE_MIDI;
1953 } else {
1954 if (rev_h)
1955 legacy &= ~VIA_FUNC_MIDI_PNP; /* disable PCI I/O 2 */
1956 legacy &= ~VIA_FUNC_ENABLE_MIDI;
1957 mpu_port = 0;
1958 }
1959
1960 pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE, legacy);
1961 pci_write_config_byte(chip->pci, VIA_PNP_CONTROL, legacy_cfg);
1962 if (chip->mpu_res) {
1963 if (snd_mpu401_uart_new(chip->card, 0, MPU401_HW_VIA686A,
1964 mpu_port, 1,
1965 chip->irq, 0, &chip->rmidi) < 0) {
1966 printk(KERN_WARNING "unable to initialize MPU-401"
1967 " at 0x%lx, skipping\n", mpu_port);
1968 legacy &= ~VIA_FUNC_ENABLE_MIDI;
1969 } else {
1970 legacy &= ~VIA_FUNC_MIDI_IRQMASK; /* enable MIDI interrupt */
1971 }
1972 pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE, legacy);
1973 }
1974
1975 snd_via686_create_gameport(chip, &legacy);
1976
1977 #ifdef CONFIG_PM
1978 chip->legacy_saved = legacy;
1979 chip->legacy_cfg_saved = legacy_cfg;
1980 #endif
1981
1982 return 0;
1983 }
1984
1985
1986 /*
1987 * proc interface
1988 */
1989 static void snd_via82xx_proc_read(struct snd_info_entry *entry,
1990 struct snd_info_buffer *buffer)
1991 {
1992 struct via82xx *chip = entry->private_data;
1993 int i;
1994
1995 snd_iprintf(buffer, "%s\n\n", chip->card->longname);
1996 for (i = 0; i < 0xa0; i += 4) {
1997 snd_iprintf(buffer, "%02x: %08x\n", i, inl(chip->port + i));
1998 }
1999 }
2000
2001 static void __devinit snd_via82xx_proc_init(struct via82xx *chip)
2002 {
2003 struct snd_info_entry *entry;
2004
2005 if (! snd_card_proc_new(chip->card, "via82xx", &entry))
2006 snd_info_set_text_ops(entry, chip, 1024, snd_via82xx_proc_read);
2007 }
2008
2009 /*
2010 *
2011 */
2012
2013 static int snd_via82xx_chip_init(struct via82xx *chip)
2014 {
2015 unsigned int val;
2016 unsigned long end_time;
2017 unsigned char pval;
2018
2019 #if 0 /* broken on K7M? */
2020 if (chip->chip_type == TYPE_VIA686)
2021 /* disable all legacy ports */
2022 pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE, 0);
2023 #endif
2024 pci_read_config_byte(chip->pci, VIA_ACLINK_STAT, &pval);
2025 if (! (pval & VIA_ACLINK_C00_READY)) { /* codec not ready? */
2026 /* deassert ACLink reset, force SYNC */
2027 pci_write_config_byte(chip->pci, VIA_ACLINK_CTRL,
2028 VIA_ACLINK_CTRL_ENABLE |
2029 VIA_ACLINK_CTRL_RESET |
2030 VIA_ACLINK_CTRL_SYNC);
2031 udelay(100);
2032 #if 1 /* FIXME: should we do full reset here for all chip models? */
2033 pci_write_config_byte(chip->pci, VIA_ACLINK_CTRL, 0x00);
2034 udelay(100);
2035 #else
2036 /* deassert ACLink reset, force SYNC (warm AC'97 reset) */
2037 pci_write_config_byte(chip->pci, VIA_ACLINK_CTRL,
2038 VIA_ACLINK_CTRL_RESET|VIA_ACLINK_CTRL_SYNC);
2039 udelay(2);
2040 #endif
2041 /* ACLink on, deassert ACLink reset, VSR, SGD data out */
2042 /* note - FM data out has trouble with non VRA codecs !! */
2043 pci_write_config_byte(chip->pci, VIA_ACLINK_CTRL, VIA_ACLINK_CTRL_INIT);
2044 udelay(100);
2045 }
2046
2047 /* Make sure VRA is enabled, in case we didn't do a
2048 * complete codec reset, above */
2049 pci_read_config_byte(chip->pci, VIA_ACLINK_CTRL, &pval);
2050 if ((pval & VIA_ACLINK_CTRL_INIT) != VIA_ACLINK_CTRL_INIT) {
2051 /* ACLink on, deassert ACLink reset, VSR, SGD data out */
2052 /* note - FM data out has trouble with non VRA codecs !! */
2053 pci_write_config_byte(chip->pci, VIA_ACLINK_CTRL, VIA_ACLINK_CTRL_INIT);
2054 udelay(100);
2055 }
2056
2057 /* wait until codec ready */
2058 end_time = jiffies + msecs_to_jiffies(750);
2059 do {
2060 pci_read_config_byte(chip->pci, VIA_ACLINK_STAT, &pval);
2061 if (pval & VIA_ACLINK_C00_READY) /* primary codec ready */
2062 break;
2063 schedule_timeout_uninterruptible(1);
2064 } while (time_before(jiffies, end_time));
2065
2066 if ((val = snd_via82xx_codec_xread(chip)) & VIA_REG_AC97_BUSY)
2067 snd_printk(KERN_ERR "AC'97 codec is not ready [0x%x]\n", val);
2068
2069 #if 0 /* FIXME: we don't support the second codec yet so skip the detection now.. */
2070 snd_via82xx_codec_xwrite(chip, VIA_REG_AC97_READ |
2071 VIA_REG_AC97_SECONDARY_VALID |
2072 (VIA_REG_AC97_CODEC_ID_SECONDARY << VIA_REG_AC97_CODEC_ID_SHIFT));
2073 end_time = jiffies + msecs_to_jiffies(750);
2074 snd_via82xx_codec_xwrite(chip, VIA_REG_AC97_READ |
2075 VIA_REG_AC97_SECONDARY_VALID |
2076 (VIA_REG_AC97_CODEC_ID_SECONDARY << VIA_REG_AC97_CODEC_ID_SHIFT));
2077 do {
2078 if ((val = snd_via82xx_codec_xread(chip)) & VIA_REG_AC97_SECONDARY_VALID) {
2079 chip->ac97_secondary = 1;
2080 goto __ac97_ok2;
2081 }
2082 schedule_timeout_interruptible(1);
2083 } while (time_before(jiffies, end_time));
2084 /* This is ok, the most of motherboards have only one codec */
2085
2086 __ac97_ok2:
2087 #endif
2088
2089 if (chip->chip_type == TYPE_VIA686) {
2090 /* route FM trap to IRQ, disable FM trap */
2091 pci_write_config_byte(chip->pci, VIA_FM_NMI_CTRL, 0);
2092 /* disable all GPI interrupts */
2093 outl(0, VIAREG(chip, GPI_INTR));
2094 }
2095
2096 if (chip->chip_type != TYPE_VIA686) {
2097 /* Workaround for Award BIOS bug:
2098 * DXS channels don't work properly with VRA if MC97 is disabled.
2099 */
2100 struct pci_dev *pci;
2101 pci = pci_get_device(0x1106, 0x3068, NULL); /* MC97 */
2102 if (pci) {
2103 unsigned char data;
2104 pci_read_config_byte(pci, 0x44, &data);
2105 pci_write_config_byte(pci, 0x44, data | 0x40);
2106 pci_dev_put(pci);
2107 }
2108 }
2109
2110 if (chip->chip_type != TYPE_VIA8233A) {
2111 int i, idx;
2112 for (idx = 0; idx < 4; idx++) {
2113 unsigned long port = chip->port + 0x10 * idx;
2114 for (i = 0; i < 2; i++) {
2115 chip->playback_volume[idx][i]=chip->playback_volume_c[i];
2116 outb(chip->playback_volume_c[i],
2117 port + VIA_REG_OFS_PLAYBACK_VOLUME_L + i);
2118 }
2119 }
2120 }
2121
2122 return 0;
2123 }
2124
2125 #ifdef CONFIG_PM
2126 /*
2127 * power management
2128 */
2129 static int snd_via82xx_suspend(struct snd_card *card, pm_message_t state)
2130 {
2131 struct via82xx *chip = card->pm_private_data;
2132 int i;
2133
2134 for (i = 0; i < 2; i++)
2135 if (chip->pcms[i])
2136 snd_pcm_suspend_all(chip->pcms[i]);
2137 for (i = 0; i < chip->num_devs; i++)
2138 snd_via82xx_channel_reset(chip, &chip->devs[i]);
2139 synchronize_irq(chip->irq);
2140 snd_ac97_suspend(chip->ac97);
2141
2142 /* save misc values */
2143 if (chip->chip_type != TYPE_VIA686) {
2144 pci_read_config_byte(chip->pci, VIA8233_SPDIF_CTRL, &chip->spdif_ctrl_saved);
2145 chip->capture_src_saved[0] = inb(chip->port + VIA_REG_CAPTURE_CHANNEL);
2146 chip->capture_src_saved[1] = inb(chip->port + VIA_REG_CAPTURE_CHANNEL + 0x10);
2147 }
2148
2149 pci_set_power_state(chip->pci, 3);
2150 pci_disable_device(chip->pci);
2151 return 0;
2152 }
2153
2154 static int snd_via82xx_resume(struct snd_card *card)
2155 {
2156 struct via82xx *chip = card->pm_private_data;
2157 int i;
2158
2159 pci_enable_device(chip->pci);
2160 pci_set_power_state(chip->pci, 0);
2161
2162 snd_via82xx_chip_init(chip);
2163
2164 if (chip->chip_type == TYPE_VIA686) {
2165 if (chip->mpu_port_saved)
2166 pci_write_config_dword(chip->pci, 0x18, chip->mpu_port_saved | 0x01);
2167 pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE, chip->legacy_saved);
2168 pci_write_config_byte(chip->pci, VIA_PNP_CONTROL, chip->legacy_cfg_saved);
2169 } else {
2170 pci_write_config_byte(chip->pci, VIA8233_SPDIF_CTRL, chip->spdif_ctrl_saved);
2171 outb(chip->capture_src_saved[0], chip->port + VIA_REG_CAPTURE_CHANNEL);
2172 outb(chip->capture_src_saved[1], chip->port + VIA_REG_CAPTURE_CHANNEL + 0x10);
2173 }
2174
2175 snd_ac97_resume(chip->ac97);
2176
2177 for (i = 0; i < chip->num_devs; i++)
2178 snd_via82xx_channel_reset(chip, &chip->devs[i]);
2179
2180 return 0;
2181 }
2182 #endif /* CONFIG_PM */
2183
2184 static int snd_via82xx_free(struct via82xx *chip)
2185 {
2186 unsigned int i;
2187
2188 if (chip->irq < 0)
2189 goto __end_hw;
2190 /* disable interrupts */
2191 for (i = 0; i < chip->num_devs; i++)
2192 snd_via82xx_channel_reset(chip, &chip->devs[i]);
2193 synchronize_irq(chip->irq);
2194 __end_hw:
2195 if (chip->irq >= 0)
2196 free_irq(chip->irq, chip);
2197 release_and_free_resource(chip->mpu_res);
2198 pci_release_regions(chip->pci);
2199
2200 if (chip->chip_type == TYPE_VIA686) {
2201 snd_via686_free_gameport(chip);
2202 pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE, chip->old_legacy);
2203 pci_write_config_byte(chip->pci, VIA_PNP_CONTROL, chip->old_legacy_cfg);
2204 }
2205 pci_disable_device(chip->pci);
2206 kfree(chip);
2207 return 0;
2208 }
2209
2210 static int snd_via82xx_dev_free(struct snd_device *device)
2211 {
2212 struct via82xx *chip = device->device_data;
2213 return snd_via82xx_free(chip);
2214 }
2215
2216 static int __devinit snd_via82xx_create(struct snd_card *card,
2217 struct pci_dev *pci,
2218 int chip_type,
2219 int revision,
2220 unsigned int ac97_clock,
2221 struct via82xx ** r_via)
2222 {
2223 struct via82xx *chip;
2224 int err;
2225 static struct snd_device_ops ops = {
2226 .dev_free = snd_via82xx_dev_free,
2227 };
2228
2229 if ((err = pci_enable_device(pci)) < 0)
2230 return err;
2231
2232 if ((chip = kzalloc(sizeof(*chip), GFP_KERNEL)) == NULL) {
2233 pci_disable_device(pci);
2234 return -ENOMEM;
2235 }
2236
2237 chip->chip_type = chip_type;
2238 chip->revision = revision;
2239
2240 spin_lock_init(&chip->reg_lock);
2241 spin_lock_init(&chip->rates[0].lock);
2242 spin_lock_init(&chip->rates[1].lock);
2243 chip->card = card;
2244 chip->pci = pci;
2245 chip->irq = -1;
2246
2247 pci_read_config_byte(pci, VIA_FUNC_ENABLE, &chip->old_legacy);
2248 pci_read_config_byte(pci, VIA_PNP_CONTROL, &chip->old_legacy_cfg);
2249 pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE,
2250 chip->old_legacy & ~(VIA_FUNC_ENABLE_SB|VIA_FUNC_ENABLE_FM));
2251
2252 if ((err = pci_request_regions(pci, card->driver)) < 0) {
2253 kfree(chip);
2254 pci_disable_device(pci);
2255 return err;
2256 }
2257 chip->port = pci_resource_start(pci, 0);
2258 if (request_irq(pci->irq,
2259 chip_type == TYPE_VIA8233 ?
2260 snd_via8233_interrupt : snd_via686_interrupt,
2261 SA_INTERRUPT|SA_SHIRQ,
2262 card->driver, chip)) {
2263 snd_printk(KERN_ERR "unable to grab IRQ %d\n", pci->irq);
2264 snd_via82xx_free(chip);
2265 return -EBUSY;
2266 }
2267 chip->irq = pci->irq;
2268 if (ac97_clock >= 8000 && ac97_clock <= 48000)
2269 chip->ac97_clock = ac97_clock;
2270 synchronize_irq(chip->irq);
2271
2272 if ((err = snd_via82xx_chip_init(chip)) < 0) {
2273 snd_via82xx_free(chip);
2274 return err;
2275 }
2276
2277 if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
2278 snd_via82xx_free(chip);
2279 return err;
2280 }
2281
2282 /* The 8233 ac97 controller does not implement the master bit
2283 * in the pci command register. IMHO this is a violation of the PCI spec.
2284 * We call pci_set_master here because it does not hurt. */
2285 pci_set_master(pci);
2286
2287 snd_card_set_dev(card, &pci->dev);
2288
2289 *r_via = chip;
2290 return 0;
2291 }
2292
2293 struct via823x_info {
2294 int revision;
2295 char *name;
2296 int type;
2297 };
2298 static struct via823x_info via823x_cards[] __devinitdata = {
2299 { VIA_REV_PRE_8233, "VIA 8233-Pre", TYPE_VIA8233 },
2300 { VIA_REV_8233C, "VIA 8233C", TYPE_VIA8233 },
2301 { VIA_REV_8233, "VIA 8233", TYPE_VIA8233 },
2302 { VIA_REV_8233A, "VIA 8233A", TYPE_VIA8233A },
2303 { VIA_REV_8235, "VIA 8235", TYPE_VIA8233 },
2304 { VIA_REV_8237, "VIA 8237", TYPE_VIA8233 },
2305 };
2306
2307 /*
2308 * auto detection of DXS channel supports.
2309 */
2310 struct dxs_whitelist {
2311 unsigned short subvendor;
2312 unsigned short subdevice;
2313 unsigned short mask;
2314 short action; /* new dxs_support value */
2315 };
2316
2317 static int __devinit check_dxs_list(struct pci_dev *pci)
2318 {
2319 static struct dxs_whitelist whitelist[] = {
2320 { .subvendor = 0x1005, .subdevice = 0x4710, .action = VIA_DXS_ENABLE }, /* Avance Logic Mobo */
2321 { .subvendor = 0x1019, .subdevice = 0x0996, .action = VIA_DXS_48K },
2322 { .subvendor = 0x1019, .subdevice = 0x0a81, .action = VIA_DXS_NO_VRA }, /* ECS K7VTA3 v8.0 */
2323 { .subvendor = 0x1019, .subdevice = 0x0a85, .action = VIA_DXS_NO_VRA }, /* ECS L7VMM2 */
2324 { .subvendor = 0x1019, .subdevice = 0xa101, .action = VIA_DXS_SRC },
2325 { .subvendor = 0x1025, .subdevice = 0x0033, .action = VIA_DXS_NO_VRA }, /* Acer Inspire 1353LM */
2326 { .subvendor = 0x1025, .subdevice = 0x0046, .action = VIA_DXS_SRC }, /* Acer Aspire 1524 WLMi */
2327 { .subvendor = 0x1043, .subdevice = 0x8095, .action = VIA_DXS_NO_VRA }, /* ASUS A7V8X (FIXME: possibly VIA_DXS_ENABLE?)*/
2328 { .subvendor = 0x1043, .subdevice = 0x80a1, .action = VIA_DXS_NO_VRA }, /* ASUS A7V8-X */
2329 { .subvendor = 0x1043, .subdevice = 0x80b0, .action = VIA_DXS_NO_VRA }, /* ASUS A7V600 & K8V*/
2330 { .subvendor = 0x1043, .subdevice = 0x810d, .action = VIA_DXS_SRC }, /* ASUS */
2331 { .subvendor = 0x1043, .subdevice = 0x812a, .action = VIA_DXS_SRC }, /* ASUS A8V Deluxe */
2332 { .subvendor = 0x1071, .subdevice = 0x8375, .action = VIA_DXS_NO_VRA }, /* Vobis/Yakumo/Mitac notebook */
2333 { .subvendor = 0x1071, .subdevice = 0x8399, .action = VIA_DXS_NO_VRA }, /* Umax AB 595T (VIA K8N800A - VT8237) */
2334 { .subvendor = 0x10cf, .subdevice = 0x118e, .action = VIA_DXS_ENABLE }, /* FSC laptop */
2335 { .subvendor = 0x1106, .subdevice = 0x4161, .action = VIA_DXS_NO_VRA }, /* ASRock K7VT2 */
2336 { .subvendor = 0x1106, .subdevice = 0x4552, .action = VIA_DXS_NO_VRA }, /* QDI Kudoz 7X/600-6AL */
2337 { .subvendor = 0x1106, .subdevice = 0xaa01, .action = VIA_DXS_NO_VRA }, /* EPIA MII */
2338 { .subvendor = 0x1106, .subdevice = 0xc001, .action = VIA_DXS_SRC }, /* Insight P4-ITX */
2339 { .subvendor = 0x1297, .subdevice = 0xa232, .action = VIA_DXS_ENABLE }, /* Shuttle ?? */
2340 { .subvendor = 0x1297, .subdevice = 0xc160, .action = VIA_DXS_ENABLE }, /* Shuttle SK41G */
2341 { .subvendor = 0x1458, .subdevice = 0xa002, .action = VIA_DXS_ENABLE }, /* Gigabyte GA-7VAXP */
2342 { .subvendor = 0x1462, .subdevice = 0x0080, .action = VIA_DXS_SRC }, /* MSI K8T Neo-FIS2R */
2343 { .subvendor = 0x1462, .subdevice = 0x0430, .action = VIA_DXS_SRC }, /* MSI 7142 (K8MM-V) */
2344 { .subvendor = 0x1462, .subdevice = 0x0470, .action = VIA_DXS_SRC }, /* MSI KT880 Delta-FSR */
2345 { .subvendor = 0x1462, .subdevice = 0x3800, .action = VIA_DXS_ENABLE }, /* MSI KT266 */
2346 { .subvendor = 0x1462, .subdevice = 0x5901, .action = VIA_DXS_NO_VRA }, /* MSI KT6 Delta-SR */
2347 { .subvendor = 0x1462, .subdevice = 0x7023, .action = VIA_DXS_NO_VRA }, /* MSI K8T Neo2-FI */
2348 { .subvendor = 0x1462, .subdevice = 0x7120, .action = VIA_DXS_ENABLE }, /* MSI KT4V */
2349 { .subvendor = 0x1462, .subdevice = 0x7142, .action = VIA_DXS_ENABLE }, /* MSI K8MM-V */
2350 { .subvendor = 0x147b, .subdevice = 0x1401, .action = VIA_DXS_ENABLE }, /* ABIT KD7(-RAID) */
2351 { .subvendor = 0x147b, .subdevice = 0x1411, .action = VIA_DXS_ENABLE }, /* ABIT VA-20 */
2352 { .subvendor = 0x147b, .subdevice = 0x1413, .action = VIA_DXS_ENABLE }, /* ABIT KV8 Pro */
2353 { .subvendor = 0x147b, .subdevice = 0x1415, .action = VIA_DXS_NO_VRA }, /* Abit AV8 */
2354 { .subvendor = 0x14ff, .subdevice = 0x0403, .action = VIA_DXS_ENABLE }, /* Twinhead mobo */
2355 { .subvendor = 0x14ff, .subdevice = 0x0408, .action = VIA_DXS_SRC }, /* Twinhead laptop */
2356 { .subvendor = 0x1558, .subdevice = 0x4701, .action = VIA_DXS_SRC }, /* Clevo D470 */
2357 { .subvendor = 0x1584, .subdevice = 0x8120, .action = VIA_DXS_ENABLE }, /* Gericom/Targa/Vobis/Uniwill laptop */
2358 { .subvendor = 0x1584, .subdevice = 0x8123, .action = VIA_DXS_NO_VRA }, /* Uniwill (Targa Visionary XP-210) */
2359 { .subvendor = 0x161f, .subdevice = 0x202b, .action = VIA_DXS_NO_VRA }, /* Amira Note book */
2360 { .subvendor = 0x161f, .subdevice = 0x2032, .action = VIA_DXS_48K }, /* m680x machines */
2361 { .subvendor = 0x1631, .subdevice = 0xe004, .action = VIA_DXS_ENABLE }, /* Easy Note 3174, Packard Bell */
2362 { .subvendor = 0x1695, .subdevice = 0x3005, .action = VIA_DXS_ENABLE }, /* EPoX EP-8K9A */
2363 { .subvendor = 0x1849, .subdevice = 0x3059, .action = VIA_DXS_NO_VRA }, /* ASRock K7VM2 */
2364 { .subvendor = 0x1919, .subdevice = 0x200a, .action = VIA_DXS_NO_VRA }, /* Soltek SL-K8Tpro-939 */
2365 { .subvendor = 0x4005, .subdevice = 0x4710, .action = VIA_DXS_SRC }, /* MSI K7T266 Pro2 (MS-6380 V2.0) BIOS 3.7 */
2366 { } /* terminator */
2367 };
2368 struct dxs_whitelist *w;
2369 unsigned short subsystem_vendor;
2370 unsigned short subsystem_device;
2371
2372 pci_read_config_word(pci, PCI_SUBSYSTEM_VENDOR_ID, &subsystem_vendor);
2373 pci_read_config_word(pci, PCI_SUBSYSTEM_ID, &subsystem_device);
2374
2375 for (w = whitelist; w->subvendor; w++) {
2376 if (w->subvendor != subsystem_vendor)
2377 continue;
2378 if (w->mask) {
2379 if ((w->mask & subsystem_device) == w->subdevice)
2380 return w->action;
2381 } else {
2382 if (subsystem_device == w->subdevice)
2383 return w->action;
2384 }
2385 }
2386
2387 /*
2388 * not detected, try 48k rate only to be sure.
2389 */
2390 printk(KERN_INFO "via82xx: Assuming DXS channels with 48k fixed sample rate.\n");
2391 printk(KERN_INFO " Please try dxs_support=5 option\n");
2392 printk(KERN_INFO " and report if it works on your machine.\n");
2393 printk(KERN_INFO " For more details, read ALSA-Configuration.txt.\n");
2394 return VIA_DXS_48K;
2395 };
2396
2397 static int __devinit snd_via82xx_probe(struct pci_dev *pci,
2398 const struct pci_device_id *pci_id)
2399 {
2400 struct snd_card *card;
2401 struct via82xx *chip;
2402 unsigned char revision;
2403 int chip_type = 0, card_type;
2404 unsigned int i;
2405 int err;
2406
2407 card = snd_card_new(index, id, THIS_MODULE, 0);
2408 if (card == NULL)
2409 return -ENOMEM;
2410
2411 card_type = pci_id->driver_data;
2412 pci_read_config_byte(pci, PCI_REVISION_ID, &revision);
2413 switch (card_type) {
2414 case TYPE_CARD_VIA686:
2415 strcpy(card->driver, "VIA686A");
2416 sprintf(card->shortname, "VIA 82C686A/B rev%x", revision);
2417 chip_type = TYPE_VIA686;
2418 break;
2419 case TYPE_CARD_VIA8233:
2420 chip_type = TYPE_VIA8233;
2421 sprintf(card->shortname, "VIA 823x rev%x", revision);
2422 for (i = 0; i < ARRAY_SIZE(via823x_cards); i++) {
2423 if (revision == via823x_cards[i].revision) {
2424 chip_type = via823x_cards[i].type;
2425 strcpy(card->shortname, via823x_cards[i].name);
2426 break;
2427 }
2428 }
2429 if (chip_type != TYPE_VIA8233A) {
2430 if (dxs_support == VIA_DXS_AUTO)
2431 dxs_support = check_dxs_list(pci);
2432 /* force to use VIA8233 or 8233A model according to
2433 * dxs_support module option
2434 */
2435 if (dxs_support == VIA_DXS_DISABLE)
2436 chip_type = TYPE_VIA8233A;
2437 else
2438 chip_type = TYPE_VIA8233;
2439 }
2440 if (chip_type == TYPE_VIA8233A)
2441 strcpy(card->driver, "VIA8233A");
2442 else if (revision >= VIA_REV_8237)
2443 strcpy(card->driver, "VIA8237"); /* no slog assignment */
2444 else
2445 strcpy(card->driver, "VIA8233");
2446 break;
2447 default:
2448 snd_printk(KERN_ERR "invalid card type %d\n", card_type);
2449 err = -EINVAL;
2450 goto __error;
2451 }
2452
2453 if ((err = snd_via82xx_create(card, pci, chip_type, revision,
2454 ac97_clock, &chip)) < 0)
2455 goto __error;
2456 if ((err = snd_via82xx_mixer_new(chip, ac97_quirk)) < 0)
2457 goto __error;
2458
2459 if (chip_type == TYPE_VIA686) {
2460 if ((err = snd_via686_pcm_new(chip)) < 0 ||
2461 (err = snd_via686_init_misc(chip)) < 0)
2462 goto __error;
2463 } else {
2464 if (chip_type == TYPE_VIA8233A) {
2465 if ((err = snd_via8233a_pcm_new(chip)) < 0)
2466 goto __error;
2467 // chip->dxs_fixed = 1; /* FIXME: use 48k for DXS #3? */
2468 } else {
2469 if ((err = snd_via8233_pcm_new(chip)) < 0)
2470 goto __error;
2471 if (dxs_support == VIA_DXS_48K)
2472 chip->dxs_fixed = 1;
2473 else if (dxs_support == VIA_DXS_NO_VRA)
2474 chip->no_vra = 1;
2475 else if (dxs_support == VIA_DXS_SRC) {
2476 chip->no_vra = 1;
2477 chip->dxs_src = 1;
2478 }
2479 }
2480 if ((err = snd_via8233_init_misc(chip)) < 0)
2481 goto __error;
2482 }
2483
2484 snd_card_set_pm_callback(card, snd_via82xx_suspend, snd_via82xx_resume, chip);
2485
2486 /* disable interrupts */
2487 for (i = 0; i < chip->num_devs; i++)
2488 snd_via82xx_channel_reset(chip, &chip->devs[i]);
2489
2490 snprintf(card->longname, sizeof(card->longname),
2491 "%s with %s at %#lx, irq %d", card->shortname,
2492 snd_ac97_get_short_name(chip->ac97), chip->port, chip->irq);
2493
2494 snd_via82xx_proc_init(chip);
2495
2496 if ((err = snd_card_register(card)) < 0) {
2497 snd_card_free(card);
2498 return err;
2499 }
2500 pci_set_drvdata(pci, card);
2501 return 0;
2502
2503 __error:
2504 snd_card_free(card);
2505 return err;
2506 }
2507
2508 static void __devexit snd_via82xx_remove(struct pci_dev *pci)
2509 {
2510 snd_card_free(pci_get_drvdata(pci));
2511 pci_set_drvdata(pci, NULL);
2512 }
2513
2514 static struct pci_driver driver = {
2515 .name = "VIA 82xx Audio",
2516 .id_table = snd_via82xx_ids,
2517 .probe = snd_via82xx_probe,
2518 .remove = __devexit_p(snd_via82xx_remove),
2519 SND_PCI_PM_CALLBACKS
2520 };
2521
2522 static int __init alsa_card_via82xx_init(void)
2523 {
2524 return pci_register_driver(&driver);
2525 }
2526
2527 static void __exit alsa_card_via82xx_exit(void)
2528 {
2529 pci_unregister_driver(&driver);
2530 }
2531
2532 module_init(alsa_card_via82xx_init)
2533 module_exit(alsa_card_via82xx_exit)
kernel source for telekom puls (alcatel/mediatek)