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fat: small optimization to __fat_readdir()
[linux-2.6/mini2440.git] / sound / pci / via82xx.c
blob6781be9e3078ac702364770f407fbc4458486882
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@perex.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 <asm/io.h>
50 #include <linux/delay.h>
51 #include <linux/interrupt.h>
52 #include <linux/init.h>
53 #include <linux/pci.h>
54 #include <linux/slab.h>
55 #include <linux/gameport.h>
56 #include <linux/moduleparam.h>
57 #include <sound/core.h>
58 #include <sound/pcm.h>
59 #include <sound/pcm_params.h>
60 #include <sound/info.h>
61 #include <sound/tlv.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@perex.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 #define VIA_REV_8251 0x70
127
128 /*
129 * Direct registers
130 */
131
132 #define VIAREG(via, x) ((via)->port + VIA_REG_##x)
133 #define VIADEV_REG(viadev, x) ((viadev)->port + VIA_REG_##x)
134
135 /* common offsets */
136 #define VIA_REG_OFFSET_STATUS 0x00 /* byte - channel status */
137 #define VIA_REG_STAT_ACTIVE 0x80 /* RO */
138 #define VIA8233_SHADOW_STAT_ACTIVE 0x08 /* RO */
139 #define VIA_REG_STAT_PAUSED 0x40 /* RO */
140 #define VIA_REG_STAT_TRIGGER_QUEUED 0x08 /* RO */
141 #define VIA_REG_STAT_STOPPED 0x04 /* RWC */
142 #define VIA_REG_STAT_EOL 0x02 /* RWC */
143 #define VIA_REG_STAT_FLAG 0x01 /* RWC */
144 #define VIA_REG_OFFSET_CONTROL 0x01 /* byte - channel control */
145 #define VIA_REG_CTRL_START 0x80 /* WO */
146 #define VIA_REG_CTRL_TERMINATE 0x40 /* WO */
147 #define VIA_REG_CTRL_AUTOSTART 0x20
148 #define VIA_REG_CTRL_PAUSE 0x08 /* RW */
149 #define VIA_REG_CTRL_INT_STOP 0x04
150 #define VIA_REG_CTRL_INT_EOL 0x02
151 #define VIA_REG_CTRL_INT_FLAG 0x01
152 #define VIA_REG_CTRL_RESET 0x01 /* RW - probably reset? undocumented */
153 #define VIA_REG_CTRL_INT (VIA_REG_CTRL_INT_FLAG | VIA_REG_CTRL_INT_EOL | VIA_REG_CTRL_AUTOSTART)
154 #define VIA_REG_OFFSET_TYPE 0x02 /* byte - channel type (686 only) */
155 #define VIA_REG_TYPE_AUTOSTART 0x80 /* RW - autostart at EOL */
156 #define VIA_REG_TYPE_16BIT 0x20 /* RW */
157 #define VIA_REG_TYPE_STEREO 0x10 /* RW */
158 #define VIA_REG_TYPE_INT_LLINE 0x00
159 #define VIA_REG_TYPE_INT_LSAMPLE 0x04
160 #define VIA_REG_TYPE_INT_LESSONE 0x08
161 #define VIA_REG_TYPE_INT_MASK 0x0c
162 #define VIA_REG_TYPE_INT_EOL 0x02
163 #define VIA_REG_TYPE_INT_FLAG 0x01
164 #define VIA_REG_OFFSET_TABLE_PTR 0x04 /* dword - channel table pointer */
165 #define VIA_REG_OFFSET_CURR_PTR 0x04 /* dword - channel current pointer */
166 #define VIA_REG_OFFSET_STOP_IDX 0x08 /* dword - stop index, channel type, sample rate */
167 #define VIA8233_REG_TYPE_16BIT 0x00200000 /* RW */
168 #define VIA8233_REG_TYPE_STEREO 0x00100000 /* RW */
169 #define VIA_REG_OFFSET_CURR_COUNT 0x0c /* dword - channel current count (24 bit) */
170 #define VIA_REG_OFFSET_CURR_INDEX 0x0f /* byte - channel current index (for via8233 only) */
171
172 #define DEFINE_VIA_REGSET(name,val) \
173 enum {\
174 VIA_REG_##name##_STATUS = (val),\
175 VIA_REG_##name##_CONTROL = (val) + 0x01,\
176 VIA_REG_##name##_TYPE = (val) + 0x02,\
177 VIA_REG_##name##_TABLE_PTR = (val) + 0x04,\
178 VIA_REG_##name##_CURR_PTR = (val) + 0x04,\
179 VIA_REG_##name##_STOP_IDX = (val) + 0x08,\
180 VIA_REG_##name##_CURR_COUNT = (val) + 0x0c,\
181 }
182
183 /* playback block */
184 DEFINE_VIA_REGSET(PLAYBACK, 0x00);
185 DEFINE_VIA_REGSET(CAPTURE, 0x10);
186 DEFINE_VIA_REGSET(FM, 0x20);
187
188 /* AC'97 */
189 #define VIA_REG_AC97 0x80 /* dword */
190 #define VIA_REG_AC97_CODEC_ID_MASK (3<<30)
191 #define VIA_REG_AC97_CODEC_ID_SHIFT 30
192 #define VIA_REG_AC97_CODEC_ID_PRIMARY 0x00
193 #define VIA_REG_AC97_CODEC_ID_SECONDARY 0x01
194 #define VIA_REG_AC97_SECONDARY_VALID (1<<27)
195 #define VIA_REG_AC97_PRIMARY_VALID (1<<25)
196 #define VIA_REG_AC97_BUSY (1<<24)
197 #define VIA_REG_AC97_READ (1<<23)
198 #define VIA_REG_AC97_CMD_SHIFT 16
199 #define VIA_REG_AC97_CMD_MASK 0x7e
200 #define VIA_REG_AC97_DATA_SHIFT 0
201 #define VIA_REG_AC97_DATA_MASK 0xffff
202
203 #define VIA_REG_SGD_SHADOW 0x84 /* dword */
204 /* via686 */
205 #define VIA_REG_SGD_STAT_PB_FLAG (1<<0)
206 #define VIA_REG_SGD_STAT_CP_FLAG (1<<1)
207 #define VIA_REG_SGD_STAT_FM_FLAG (1<<2)
208 #define VIA_REG_SGD_STAT_PB_EOL (1<<4)
209 #define VIA_REG_SGD_STAT_CP_EOL (1<<5)
210 #define VIA_REG_SGD_STAT_FM_EOL (1<<6)
211 #define VIA_REG_SGD_STAT_PB_STOP (1<<8)
212 #define VIA_REG_SGD_STAT_CP_STOP (1<<9)
213 #define VIA_REG_SGD_STAT_FM_STOP (1<<10)
214 #define VIA_REG_SGD_STAT_PB_ACTIVE (1<<12)
215 #define VIA_REG_SGD_STAT_CP_ACTIVE (1<<13)
216 #define VIA_REG_SGD_STAT_FM_ACTIVE (1<<14)
217 /* via8233 */
218 #define VIA8233_REG_SGD_STAT_FLAG (1<<0)
219 #define VIA8233_REG_SGD_STAT_EOL (1<<1)
220 #define VIA8233_REG_SGD_STAT_STOP (1<<2)
221 #define VIA8233_REG_SGD_STAT_ACTIVE (1<<3)
222 #define VIA8233_INTR_MASK(chan) ((VIA8233_REG_SGD_STAT_FLAG|VIA8233_REG_SGD_STAT_EOL) << ((chan) * 4))
223 #define VIA8233_REG_SGD_CHAN_SDX 0
224 #define VIA8233_REG_SGD_CHAN_MULTI 4
225 #define VIA8233_REG_SGD_CHAN_REC 6
226 #define VIA8233_REG_SGD_CHAN_REC1 7
227
228 #define VIA_REG_GPI_STATUS 0x88
229 #define VIA_REG_GPI_INTR 0x8c
230
231 /* multi-channel and capture registers for via8233 */
232 DEFINE_VIA_REGSET(MULTPLAY, 0x40);
233 DEFINE_VIA_REGSET(CAPTURE_8233, 0x60);
234
235 /* via8233-specific registers */
236 #define VIA_REG_OFS_PLAYBACK_VOLUME_L 0x02 /* byte */
237 #define VIA_REG_OFS_PLAYBACK_VOLUME_R 0x03 /* byte */
238 #define VIA_REG_OFS_MULTPLAY_FORMAT 0x02 /* byte - format and channels */
239 #define VIA_REG_MULTPLAY_FMT_8BIT 0x00
240 #define VIA_REG_MULTPLAY_FMT_16BIT 0x80
241 #define VIA_REG_MULTPLAY_FMT_CH_MASK 0x70 /* # channels << 4 (valid = 1,2,4,6) */
242 #define VIA_REG_OFS_CAPTURE_FIFO 0x02 /* byte - bit 6 = fifo enable */
243 #define VIA_REG_CAPTURE_FIFO_ENABLE 0x40
244
245 #define VIA_DXS_MAX_VOLUME 31 /* max. volume (attenuation) of reg 0x32/33 */
246
247 #define VIA_REG_CAPTURE_CHANNEL 0x63 /* byte - input select */
248 #define VIA_REG_CAPTURE_CHANNEL_MIC 0x4
249 #define VIA_REG_CAPTURE_CHANNEL_LINE 0
250 #define VIA_REG_CAPTURE_SELECT_CODEC 0x03 /* recording source codec (0 = primary) */
251
252 #define VIA_TBL_BIT_FLAG 0x40000000
253 #define VIA_TBL_BIT_EOL 0x80000000
254
255 /* pci space */
256 #define VIA_ACLINK_STAT 0x40
257 #define VIA_ACLINK_C11_READY 0x20
258 #define VIA_ACLINK_C10_READY 0x10
259 #define VIA_ACLINK_C01_READY 0x04 /* secondary codec ready */
260 #define VIA_ACLINK_LOWPOWER 0x02 /* low-power state */
261 #define VIA_ACLINK_C00_READY 0x01 /* primary codec ready */
262 #define VIA_ACLINK_CTRL 0x41
263 #define VIA_ACLINK_CTRL_ENABLE 0x80 /* 0: disable, 1: enable */
264 #define VIA_ACLINK_CTRL_RESET 0x40 /* 0: assert, 1: de-assert */
265 #define VIA_ACLINK_CTRL_SYNC 0x20 /* 0: release SYNC, 1: force SYNC hi */
266 #define VIA_ACLINK_CTRL_SDO 0x10 /* 0: release SDO, 1: force SDO hi */
267 #define VIA_ACLINK_CTRL_VRA 0x08 /* 0: disable VRA, 1: enable VRA */
268 #define VIA_ACLINK_CTRL_PCM 0x04 /* 0: disable PCM, 1: enable PCM */
269 #define VIA_ACLINK_CTRL_FM 0x02 /* via686 only */
270 #define VIA_ACLINK_CTRL_SB 0x01 /* via686 only */
271 #define VIA_ACLINK_CTRL_INIT (VIA_ACLINK_CTRL_ENABLE|\
272 VIA_ACLINK_CTRL_RESET|\
273 VIA_ACLINK_CTRL_PCM|\
274 VIA_ACLINK_CTRL_VRA)
275 #define VIA_FUNC_ENABLE 0x42
276 #define VIA_FUNC_MIDI_PNP 0x80 /* FIXME: it's 0x40 in the datasheet! */
277 #define VIA_FUNC_MIDI_IRQMASK 0x40 /* FIXME: not documented! */
278 #define VIA_FUNC_RX2C_WRITE 0x20
279 #define VIA_FUNC_SB_FIFO_EMPTY 0x10
280 #define VIA_FUNC_ENABLE_GAME 0x08
281 #define VIA_FUNC_ENABLE_FM 0x04
282 #define VIA_FUNC_ENABLE_MIDI 0x02
283 #define VIA_FUNC_ENABLE_SB 0x01
284 #define VIA_PNP_CONTROL 0x43
285 #define VIA_FM_NMI_CTRL 0x48
286 #define VIA8233_VOLCHG_CTRL 0x48
287 #define VIA8233_SPDIF_CTRL 0x49
288 #define VIA8233_SPDIF_DX3 0x08
289 #define VIA8233_SPDIF_SLOT_MASK 0x03
290 #define VIA8233_SPDIF_SLOT_1011 0x00
291 #define VIA8233_SPDIF_SLOT_34 0x01
292 #define VIA8233_SPDIF_SLOT_78 0x02
293 #define VIA8233_SPDIF_SLOT_69 0x03
294
295 /*
296 */
297
298 #define VIA_DXS_AUTO 0
299 #define VIA_DXS_ENABLE 1
300 #define VIA_DXS_DISABLE 2
301 #define VIA_DXS_48K 3
302 #define VIA_DXS_NO_VRA 4
303 #define VIA_DXS_SRC 5
304
305
306 /*
307 * pcm stream
308 */
309
310 struct snd_via_sg_table {
311 unsigned int offset;
312 unsigned int size;
313 } ;
314
315 #define VIA_TABLE_SIZE 255
316
317 struct viadev {
318 unsigned int reg_offset;
319 unsigned long port;
320 int direction; /* playback = 0, capture = 1 */
321 struct snd_pcm_substream *substream;
322 int running;
323 unsigned int tbl_entries; /* # descriptors */
324 struct snd_dma_buffer table;
325 struct snd_via_sg_table *idx_table;
326 /* for recovery from the unexpected pointer */
327 unsigned int lastpos;
328 unsigned int fragsize;
329 unsigned int bufsize;
330 unsigned int bufsize2;
331 int hwptr_done; /* processed frame position in the buffer */
332 int in_interrupt;
333 int shadow_shift;
334 };
335
336
337 enum { TYPE_CARD_VIA686 = 1, TYPE_CARD_VIA8233 };
338 enum { TYPE_VIA686, TYPE_VIA8233, TYPE_VIA8233A };
339
340 #define VIA_MAX_DEVS 7 /* 4 playback, 1 multi, 2 capture */
341
342 struct via_rate_lock {
343 spinlock_t lock;
344 int rate;
345 int used;
346 };
347
348 struct via82xx {
349 int irq;
350
351 unsigned long port;
352 struct resource *mpu_res;
353 int chip_type;
354 unsigned char revision;
355
356 unsigned char old_legacy;
357 unsigned char old_legacy_cfg;
358 #ifdef CONFIG_PM
359 unsigned char legacy_saved;
360 unsigned char legacy_cfg_saved;
361 unsigned char spdif_ctrl_saved;
362 unsigned char capture_src_saved[2];
363 unsigned int mpu_port_saved;
364 #endif
365
366 unsigned char playback_volume[4][2]; /* for VIA8233/C/8235; default = 0 */
367 unsigned char playback_volume_c[2]; /* for VIA8233/C/8235; default = 0 */
368
369 unsigned int intr_mask; /* SGD_SHADOW mask to check interrupts */
370
371 struct pci_dev *pci;
372 struct snd_card *card;
373
374 unsigned int num_devs;
375 unsigned int playback_devno, multi_devno, capture_devno;
376 struct viadev devs[VIA_MAX_DEVS];
377 struct via_rate_lock rates[2]; /* playback and capture */
378 unsigned int dxs_fixed: 1; /* DXS channel accepts only 48kHz */
379 unsigned int no_vra: 1; /* no need to set VRA on DXS channels */
380 unsigned int dxs_src: 1; /* use full SRC capabilities of DXS */
381 unsigned int spdif_on: 1; /* only spdif rates work to external DACs */
382
383 struct snd_pcm *pcms[2];
384 struct snd_rawmidi *rmidi;
385
386 struct snd_ac97_bus *ac97_bus;
387 struct snd_ac97 *ac97;
388 unsigned int ac97_clock;
389 unsigned int ac97_secondary; /* secondary AC'97 codec is present */
390
391 spinlock_t reg_lock;
392 struct snd_info_entry *proc_entry;
393
394 #ifdef SUPPORT_JOYSTICK
395 struct gameport *gameport;
396 #endif
397 };
398
399 static struct pci_device_id snd_via82xx_ids[] = {
400 /* 0x1106, 0x3058 */
401 { PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686_5, PCI_ANY_ID, PCI_ANY_ID, 0, 0, TYPE_CARD_VIA686, }, /* 686A */
402 /* 0x1106, 0x3059 */
403 { PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8233_5, PCI_ANY_ID, PCI_ANY_ID, 0, 0, TYPE_CARD_VIA8233, }, /* VT8233 */
404 { 0, }
405 };
406
407 MODULE_DEVICE_TABLE(pci, snd_via82xx_ids);
408
409 /*
410 */
411
412 /*
413 * allocate and initialize the descriptor buffers
414 * periods = number of periods
415 * fragsize = period size in bytes
416 */
417 static int build_via_table(struct viadev *dev, struct snd_pcm_substream *substream,
418 struct pci_dev *pci,
419 unsigned int periods, unsigned int fragsize)
420 {
421 unsigned int i, idx, ofs, rest;
422 struct via82xx *chip = snd_pcm_substream_chip(substream);
423 struct snd_sg_buf *sgbuf = snd_pcm_substream_sgbuf(substream);
424
425 if (dev->table.area == NULL) {
426 /* the start of each lists must be aligned to 8 bytes,
427 * but the kernel pages are much bigger, so we don't care
428 */
429 if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(chip->pci),
430 PAGE_ALIGN(VIA_TABLE_SIZE * 2 * 8),
431 &dev->table) < 0)
432 return -ENOMEM;
433 }
434 if (! dev->idx_table) {
435 dev->idx_table = kmalloc(sizeof(*dev->idx_table) * VIA_TABLE_SIZE, GFP_KERNEL);
436 if (! dev->idx_table)
437 return -ENOMEM;
438 }
439
440 /* fill the entries */
441 idx = 0;
442 ofs = 0;
443 for (i = 0; i < periods; i++) {
444 rest = fragsize;
445 /* fill descriptors for a period.
446 * a period can be split to several descriptors if it's
447 * over page boundary.
448 */
449 do {
450 unsigned int r;
451 unsigned int flag;
452
453 if (idx >= VIA_TABLE_SIZE) {
454 snd_printk(KERN_ERR "via82xx: too much table size!\n");
455 return -EINVAL;
456 }
457 ((u32 *)dev->table.area)[idx << 1] = cpu_to_le32((u32)snd_pcm_sgbuf_get_addr(sgbuf, ofs));
458 r = PAGE_SIZE - (ofs % PAGE_SIZE);
459 if (rest < r)
460 r = rest;
461 rest -= r;
462 if (! rest) {
463 if (i == periods - 1)
464 flag = VIA_TBL_BIT_EOL; /* buffer boundary */
465 else
466 flag = VIA_TBL_BIT_FLAG; /* period boundary */
467 } else
468 flag = 0; /* period continues to the next */
469 // printk("via: tbl %d: at %d size %d (rest %d)\n", idx, ofs, r, rest);
470 ((u32 *)dev->table.area)[(idx<<1) + 1] = cpu_to_le32(r | flag);
471 dev->idx_table[idx].offset = ofs;
472 dev->idx_table[idx].size = r;
473 ofs += r;
474 idx++;
475 } while (rest > 0);
476 }
477 dev->tbl_entries = idx;
478 dev->bufsize = periods * fragsize;
479 dev->bufsize2 = dev->bufsize / 2;
480 dev->fragsize = fragsize;
481 return 0;
482 }
483
484
485 static int clean_via_table(struct viadev *dev, struct snd_pcm_substream *substream,
486 struct pci_dev *pci)
487 {
488 if (dev->table.area) {
489 snd_dma_free_pages(&dev->table);
490 dev->table.area = NULL;
491 }
492 kfree(dev->idx_table);
493 dev->idx_table = NULL;
494 return 0;
495 }
496
497 /*
498 * Basic I/O
499 */
500
501 static inline unsigned int snd_via82xx_codec_xread(struct via82xx *chip)
502 {
503 return inl(VIAREG(chip, AC97));
504 }
505
506 static inline void snd_via82xx_codec_xwrite(struct via82xx *chip, unsigned int val)
507 {
508 outl(val, VIAREG(chip, AC97));
509 }
510
511 static int snd_via82xx_codec_ready(struct via82xx *chip, int secondary)
512 {
513 unsigned int timeout = 1000; /* 1ms */
514 unsigned int val;
515
516 while (timeout-- > 0) {
517 udelay(1);
518 if (!((val = snd_via82xx_codec_xread(chip)) & VIA_REG_AC97_BUSY))
519 return val & 0xffff;
520 }
521 snd_printk(KERN_ERR "codec_ready: codec %i is not ready [0x%x]\n",
522 secondary, snd_via82xx_codec_xread(chip));
523 return -EIO;
524 }
525
526 static int snd_via82xx_codec_valid(struct via82xx *chip, int secondary)
527 {
528 unsigned int timeout = 1000; /* 1ms */
529 unsigned int val, val1;
530 unsigned int stat = !secondary ? VIA_REG_AC97_PRIMARY_VALID :
531 VIA_REG_AC97_SECONDARY_VALID;
532
533 while (timeout-- > 0) {
534 val = snd_via82xx_codec_xread(chip);
535 val1 = val & (VIA_REG_AC97_BUSY | stat);
536 if (val1 == stat)
537 return val & 0xffff;
538 udelay(1);
539 }
540 return -EIO;
541 }
542
543 static void snd_via82xx_codec_wait(struct snd_ac97 *ac97)
544 {
545 struct via82xx *chip = ac97->private_data;
546 int err;
547 err = snd_via82xx_codec_ready(chip, ac97->num);
548 /* here we need to wait fairly for long time.. */
549 msleep(500);
550 }
551
552 static void snd_via82xx_codec_write(struct snd_ac97 *ac97,
553 unsigned short reg,
554 unsigned short val)
555 {
556 struct via82xx *chip = ac97->private_data;
557 unsigned int xval;
558
559 xval = !ac97->num ? VIA_REG_AC97_CODEC_ID_PRIMARY : VIA_REG_AC97_CODEC_ID_SECONDARY;
560 xval <<= VIA_REG_AC97_CODEC_ID_SHIFT;
561 xval |= reg << VIA_REG_AC97_CMD_SHIFT;
562 xval |= val << VIA_REG_AC97_DATA_SHIFT;
563 snd_via82xx_codec_xwrite(chip, xval);
564 snd_via82xx_codec_ready(chip, ac97->num);
565 }
566
567 static unsigned short snd_via82xx_codec_read(struct snd_ac97 *ac97, unsigned short reg)
568 {
569 struct via82xx *chip = ac97->private_data;
570 unsigned int xval, val = 0xffff;
571 int again = 0;
572
573 xval = ac97->num << VIA_REG_AC97_CODEC_ID_SHIFT;
574 xval |= ac97->num ? VIA_REG_AC97_SECONDARY_VALID : VIA_REG_AC97_PRIMARY_VALID;
575 xval |= VIA_REG_AC97_READ;
576 xval |= (reg & 0x7f) << VIA_REG_AC97_CMD_SHIFT;
577 while (1) {
578 if (again++ > 3) {
579 snd_printk(KERN_ERR "codec_read: codec %i is not valid [0x%x]\n",
580 ac97->num, snd_via82xx_codec_xread(chip));
581 return 0xffff;
582 }
583 snd_via82xx_codec_xwrite(chip, xval);
584 udelay (20);
585 if (snd_via82xx_codec_valid(chip, ac97->num) >= 0) {
586 udelay(25);
587 val = snd_via82xx_codec_xread(chip);
588 break;
589 }
590 }
591 return val & 0xffff;
592 }
593
594 static void snd_via82xx_channel_reset(struct via82xx *chip, struct viadev *viadev)
595 {
596 outb(VIA_REG_CTRL_PAUSE | VIA_REG_CTRL_TERMINATE | VIA_REG_CTRL_RESET,
597 VIADEV_REG(viadev, OFFSET_CONTROL));
598 inb(VIADEV_REG(viadev, OFFSET_CONTROL));
599 udelay(50);
600 /* disable interrupts */
601 outb(0x00, VIADEV_REG(viadev, OFFSET_CONTROL));
602 /* clear interrupts */
603 outb(0x03, VIADEV_REG(viadev, OFFSET_STATUS));
604 outb(0x00, VIADEV_REG(viadev, OFFSET_TYPE)); /* for via686 */
605 // outl(0, VIADEV_REG(viadev, OFFSET_CURR_PTR));
606 viadev->lastpos = 0;
607 viadev->hwptr_done = 0;
608 }
609
610
611 /*
612 * Interrupt handler
613 * Used for 686 and 8233A
614 */
615 static irqreturn_t snd_via686_interrupt(int irq, void *dev_id)
616 {
617 struct via82xx *chip = dev_id;
618 unsigned int status;
619 unsigned int i;
620
621 status = inl(VIAREG(chip, SGD_SHADOW));
622 if (! (status & chip->intr_mask)) {
623 if (chip->rmidi)
624 /* check mpu401 interrupt */
625 return snd_mpu401_uart_interrupt(irq, chip->rmidi->private_data);
626 return IRQ_NONE;
627 }
628
629 /* check status for each stream */
630 spin_lock(&chip->reg_lock);
631 for (i = 0; i < chip->num_devs; i++) {
632 struct viadev *viadev = &chip->devs[i];
633 unsigned char c_status = inb(VIADEV_REG(viadev, OFFSET_STATUS));
634 if (! (c_status & (VIA_REG_STAT_EOL|VIA_REG_STAT_FLAG|VIA_REG_STAT_STOPPED)))
635 continue;
636 if (viadev->substream && viadev->running) {
637 /*
638 * Update hwptr_done based on 'period elapsed'
639 * interrupts. We'll use it, when the chip returns 0
640 * for OFFSET_CURR_COUNT.
641 */
642 if (c_status & VIA_REG_STAT_EOL)
643 viadev->hwptr_done = 0;
644 else
645 viadev->hwptr_done += viadev->fragsize;
646 viadev->in_interrupt = c_status;
647 spin_unlock(&chip->reg_lock);
648 snd_pcm_period_elapsed(viadev->substream);
649 spin_lock(&chip->reg_lock);
650 viadev->in_interrupt = 0;
651 }
652 outb(c_status, VIADEV_REG(viadev, OFFSET_STATUS)); /* ack */
653 }
654 spin_unlock(&chip->reg_lock);
655 return IRQ_HANDLED;
656 }
657
658 /*
659 * Interrupt handler
660 */
661 static irqreturn_t snd_via8233_interrupt(int irq, void *dev_id)
662 {
663 struct via82xx *chip = dev_id;
664 unsigned int status;
665 unsigned int i;
666 int irqreturn = 0;
667
668 /* check status for each stream */
669 spin_lock(&chip->reg_lock);
670 status = inl(VIAREG(chip, SGD_SHADOW));
671
672 for (i = 0; i < chip->num_devs; i++) {
673 struct viadev *viadev = &chip->devs[i];
674 struct snd_pcm_substream *substream;
675 unsigned char c_status, shadow_status;
676
677 shadow_status = (status >> viadev->shadow_shift) &
678 (VIA8233_SHADOW_STAT_ACTIVE|VIA_REG_STAT_EOL|
679 VIA_REG_STAT_FLAG);
680 c_status = shadow_status & (VIA_REG_STAT_EOL|VIA_REG_STAT_FLAG);
681 if (!c_status)
682 continue;
683
684 substream = viadev->substream;
685 if (substream && viadev->running) {
686 /*
687 * Update hwptr_done based on 'period elapsed'
688 * interrupts. We'll use it, when the chip returns 0
689 * for OFFSET_CURR_COUNT.
690 */
691 if (c_status & VIA_REG_STAT_EOL)
692 viadev->hwptr_done = 0;
693 else
694 viadev->hwptr_done += viadev->fragsize;
695 viadev->in_interrupt = c_status;
696 if (shadow_status & VIA8233_SHADOW_STAT_ACTIVE)
697 viadev->in_interrupt |= VIA_REG_STAT_ACTIVE;
698 spin_unlock(&chip->reg_lock);
699
700 snd_pcm_period_elapsed(substream);
701
702 spin_lock(&chip->reg_lock);
703 viadev->in_interrupt = 0;
704 }
705 outb(c_status, VIADEV_REG(viadev, OFFSET_STATUS)); /* ack */
706 irqreturn = 1;
707 }
708 spin_unlock(&chip->reg_lock);
709 return IRQ_RETVAL(irqreturn);
710 }
711
712 /*
713 * PCM callbacks
714 */
715
716 /*
717 * trigger callback
718 */
719 static int snd_via82xx_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
720 {
721 struct via82xx *chip = snd_pcm_substream_chip(substream);
722 struct viadev *viadev = substream->runtime->private_data;
723 unsigned char val;
724
725 if (chip->chip_type != TYPE_VIA686)
726 val = VIA_REG_CTRL_INT;
727 else
728 val = 0;
729 switch (cmd) {
730 case SNDRV_PCM_TRIGGER_START:
731 case SNDRV_PCM_TRIGGER_RESUME:
732 val |= VIA_REG_CTRL_START;
733 viadev->running = 1;
734 break;
735 case SNDRV_PCM_TRIGGER_STOP:
736 case SNDRV_PCM_TRIGGER_SUSPEND:
737 val = VIA_REG_CTRL_TERMINATE;
738 viadev->running = 0;
739 break;
740 case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
741 val |= VIA_REG_CTRL_PAUSE;
742 viadev->running = 0;
743 break;
744 case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
745 viadev->running = 1;
746 break;
747 default:
748 return -EINVAL;
749 }
750 outb(val, VIADEV_REG(viadev, OFFSET_CONTROL));
751 if (cmd == SNDRV_PCM_TRIGGER_STOP)
752 snd_via82xx_channel_reset(chip, viadev);
753 return 0;
754 }
755
756
757 /*
758 * pointer callbacks
759 */
760
761 /*
762 * calculate the linear position at the given sg-buffer index and the rest count
763 */
764
765 #define check_invalid_pos(viadev,pos) \
766 ((pos) < viadev->lastpos && ((pos) >= viadev->bufsize2 ||\
767 viadev->lastpos < viadev->bufsize2))
768
769 static inline unsigned int calc_linear_pos(struct viadev *viadev, unsigned int idx,
770 unsigned int count)
771 {
772 unsigned int size, base, res;
773
774 size = viadev->idx_table[idx].size;
775 base = viadev->idx_table[idx].offset;
776 res = base + size - count;
777 if (res >= viadev->bufsize)
778 res -= viadev->bufsize;
779
780 /* check the validity of the calculated position */
781 if (size < count) {
782 snd_printd(KERN_ERR "invalid via82xx_cur_ptr (size = %d, count = %d)\n",
783 (int)size, (int)count);
784 res = viadev->lastpos;
785 } else {
786 if (! count) {
787 /* Some mobos report count = 0 on the DMA boundary,
788 * i.e. count = size indeed.
789 * Let's check whether this step is above the expected size.
790 */
791 int delta = res - viadev->lastpos;
792 if (delta < 0)
793 delta += viadev->bufsize;
794 if ((unsigned int)delta > viadev->fragsize)
795 res = base;
796 }
797 if (check_invalid_pos(viadev, res)) {
798 #ifdef POINTER_DEBUG
799 printk(KERN_DEBUG "fail: idx = %i/%i, lastpos = 0x%x, "
800 "bufsize2 = 0x%x, offsize = 0x%x, size = 0x%x, "
801 "count = 0x%x\n", idx, viadev->tbl_entries,
802 viadev->lastpos, viadev->bufsize2,
803 viadev->idx_table[idx].offset,
804 viadev->idx_table[idx].size, count);
805 #endif
806 /* count register returns full size when end of buffer is reached */
807 res = base + size;
808 if (check_invalid_pos(viadev, res)) {
809 snd_printd(KERN_ERR "invalid via82xx_cur_ptr (2), "
810 "using last valid pointer\n");
811 res = viadev->lastpos;
812 }
813 }
814 }
815 return res;
816 }
817
818 /*
819 * get the current pointer on via686
820 */
821 static snd_pcm_uframes_t snd_via686_pcm_pointer(struct snd_pcm_substream *substream)
822 {
823 struct via82xx *chip = snd_pcm_substream_chip(substream);
824 struct viadev *viadev = substream->runtime->private_data;
825 unsigned int idx, ptr, count, res;
826
827 snd_assert(viadev->tbl_entries, return 0);
828 if (!(inb(VIADEV_REG(viadev, OFFSET_STATUS)) & VIA_REG_STAT_ACTIVE))
829 return 0;
830
831 spin_lock(&chip->reg_lock);
832 count = inl(VIADEV_REG(viadev, OFFSET_CURR_COUNT)) & 0xffffff;
833 /* The via686a does not have the current index register,
834 * so we need to calculate the index from CURR_PTR.
835 */
836 ptr = inl(VIADEV_REG(viadev, OFFSET_CURR_PTR));
837 if (ptr <= (unsigned int)viadev->table.addr)
838 idx = 0;
839 else /* CURR_PTR holds the address + 8 */
840 idx = ((ptr - (unsigned int)viadev->table.addr) / 8 - 1) % viadev->tbl_entries;
841 res = calc_linear_pos(viadev, idx, count);
842 viadev->lastpos = res; /* remember the last position */
843 spin_unlock(&chip->reg_lock);
844
845 return bytes_to_frames(substream->runtime, res);
846 }
847
848 /*
849 * get the current pointer on via823x
850 */
851 static snd_pcm_uframes_t snd_via8233_pcm_pointer(struct snd_pcm_substream *substream)
852 {
853 struct via82xx *chip = snd_pcm_substream_chip(substream);
854 struct viadev *viadev = substream->runtime->private_data;
855 unsigned int idx, count, res;
856 int status;
857
858 snd_assert(viadev->tbl_entries, return 0);
859
860 spin_lock(&chip->reg_lock);
861 count = inl(VIADEV_REG(viadev, OFFSET_CURR_COUNT));
862 status = viadev->in_interrupt;
863 if (!status)
864 status = inb(VIADEV_REG(viadev, OFFSET_STATUS));
865
866 /* An apparent bug in the 8251 is worked around by sending a
867 * REG_CTRL_START. */
868 if (chip->revision == VIA_REV_8251 && (status & VIA_REG_STAT_EOL))
869 snd_via82xx_pcm_trigger(substream, SNDRV_PCM_TRIGGER_START);
870
871 if (!(status & VIA_REG_STAT_ACTIVE)) {
872 res = 0;
873 goto unlock;
874 }
875 if (count & 0xffffff) {
876 idx = count >> 24;
877 if (idx >= viadev->tbl_entries) {
878 #ifdef POINTER_DEBUG
879 printk(KERN_DEBUG "fail: invalid idx = %i/%i\n", idx,
880 viadev->tbl_entries);
881 #endif
882 res = viadev->lastpos;
883 } else {
884 count &= 0xffffff;
885 res = calc_linear_pos(viadev, idx, count);
886 }
887 } else {
888 res = viadev->hwptr_done;
889 if (!viadev->in_interrupt) {
890 if (status & VIA_REG_STAT_EOL) {
891 res = 0;
892 } else
893 if (status & VIA_REG_STAT_FLAG) {
894 res += viadev->fragsize;
895 }
896 }
897 }
898 unlock:
899 viadev->lastpos = res;
900 spin_unlock(&chip->reg_lock);
901
902 return bytes_to_frames(substream->runtime, res);
903 }
904
905
906 /*
907 * hw_params callback:
908 * allocate the buffer and build up the buffer description table
909 */
910 static int snd_via82xx_hw_params(struct snd_pcm_substream *substream,
911 struct snd_pcm_hw_params *hw_params)
912 {
913 struct via82xx *chip = snd_pcm_substream_chip(substream);
914 struct viadev *viadev = substream->runtime->private_data;
915 int err;
916
917 err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
918 if (err < 0)
919 return err;
920 err = build_via_table(viadev, substream, chip->pci,
921 params_periods(hw_params),
922 params_period_bytes(hw_params));
923 if (err < 0)
924 return err;
925
926 return 0;
927 }
928
929 /*
930 * hw_free callback:
931 * clean up the buffer description table and release the buffer
932 */
933 static int snd_via82xx_hw_free(struct snd_pcm_substream *substream)
934 {
935 struct via82xx *chip = snd_pcm_substream_chip(substream);
936 struct viadev *viadev = substream->runtime->private_data;
937
938 clean_via_table(viadev, substream, chip->pci);
939 snd_pcm_lib_free_pages(substream);
940 return 0;
941 }
942
943
944 /*
945 * set up the table pointer
946 */
947 static void snd_via82xx_set_table_ptr(struct via82xx *chip, struct viadev *viadev)
948 {
949 snd_via82xx_codec_ready(chip, 0);
950 outl((u32)viadev->table.addr, VIADEV_REG(viadev, OFFSET_TABLE_PTR));
951 udelay(20);
952 snd_via82xx_codec_ready(chip, 0);
953 }
954
955 /*
956 * prepare callback for playback and capture on via686
957 */
958 static void via686_setup_format(struct via82xx *chip, struct viadev *viadev,
959 struct snd_pcm_runtime *runtime)
960 {
961 snd_via82xx_channel_reset(chip, viadev);
962 /* this must be set after channel_reset */
963 snd_via82xx_set_table_ptr(chip, viadev);
964 outb(VIA_REG_TYPE_AUTOSTART |
965 (runtime->format == SNDRV_PCM_FORMAT_S16_LE ? VIA_REG_TYPE_16BIT : 0) |
966 (runtime->channels > 1 ? VIA_REG_TYPE_STEREO : 0) |
967 ((viadev->reg_offset & 0x10) == 0 ? VIA_REG_TYPE_INT_LSAMPLE : 0) |
968 VIA_REG_TYPE_INT_EOL |
969 VIA_REG_TYPE_INT_FLAG, VIADEV_REG(viadev, OFFSET_TYPE));
970 }
971
972 static int snd_via686_playback_prepare(struct snd_pcm_substream *substream)
973 {
974 struct via82xx *chip = snd_pcm_substream_chip(substream);
975 struct viadev *viadev = substream->runtime->private_data;
976 struct snd_pcm_runtime *runtime = substream->runtime;
977
978 snd_ac97_set_rate(chip->ac97, AC97_PCM_FRONT_DAC_RATE, runtime->rate);
979 snd_ac97_set_rate(chip->ac97, AC97_SPDIF, runtime->rate);
980 via686_setup_format(chip, viadev, runtime);
981 return 0;
982 }
983
984 static int snd_via686_capture_prepare(struct snd_pcm_substream *substream)
985 {
986 struct via82xx *chip = snd_pcm_substream_chip(substream);
987 struct viadev *viadev = substream->runtime->private_data;
988 struct snd_pcm_runtime *runtime = substream->runtime;
989
990 snd_ac97_set_rate(chip->ac97, AC97_PCM_LR_ADC_RATE, runtime->rate);
991 via686_setup_format(chip, viadev, runtime);
992 return 0;
993 }
994
995 /*
996 * lock the current rate
997 */
998 static int via_lock_rate(struct via_rate_lock *rec, int rate)
999 {
1000 int changed = 0;
1001
1002 spin_lock_irq(&rec->lock);
1003 if (rec->rate != rate) {
1004 if (rec->rate && rec->used > 1) /* already set */
1005 changed = -EINVAL;
1006 else {
1007 rec->rate = rate;
1008 changed = 1;
1009 }
1010 }
1011 spin_unlock_irq(&rec->lock);
1012 return changed;
1013 }
1014
1015 /*
1016 * prepare callback for DSX playback on via823x
1017 */
1018 static int snd_via8233_playback_prepare(struct snd_pcm_substream *substream)
1019 {
1020 struct via82xx *chip = snd_pcm_substream_chip(substream);
1021 struct viadev *viadev = substream->runtime->private_data;
1022 struct snd_pcm_runtime *runtime = substream->runtime;
1023 int ac97_rate = chip->dxs_src ? 48000 : runtime->rate;
1024 int rate_changed;
1025 u32 rbits;
1026
1027 if ((rate_changed = via_lock_rate(&chip->rates[0], ac97_rate)) < 0)
1028 return rate_changed;
1029 if (rate_changed)
1030 snd_ac97_set_rate(chip->ac97, AC97_PCM_FRONT_DAC_RATE,
1031 chip->no_vra ? 48000 : runtime->rate);
1032 if (chip->spdif_on && viadev->reg_offset == 0x30)
1033 snd_ac97_set_rate(chip->ac97, AC97_SPDIF, runtime->rate);
1034
1035 if (runtime->rate == 48000)
1036 rbits = 0xfffff;
1037 else
1038 rbits = (0x100000 / 48000) * runtime->rate +
1039 ((0x100000 % 48000) * runtime->rate) / 48000;
1040 snd_assert((rbits & ~0xfffff) == 0, return -EINVAL);
1041 snd_via82xx_channel_reset(chip, viadev);
1042 snd_via82xx_set_table_ptr(chip, viadev);
1043 outb(chip->playback_volume[viadev->reg_offset / 0x10][0],
1044 VIADEV_REG(viadev, OFS_PLAYBACK_VOLUME_L));
1045 outb(chip->playback_volume[viadev->reg_offset / 0x10][1],
1046 VIADEV_REG(viadev, OFS_PLAYBACK_VOLUME_R));
1047 outl((runtime->format == SNDRV_PCM_FORMAT_S16_LE ? VIA8233_REG_TYPE_16BIT : 0) | /* format */
1048 (runtime->channels > 1 ? VIA8233_REG_TYPE_STEREO : 0) | /* stereo */
1049 rbits | /* rate */
1050 0xff000000, /* STOP index is never reached */
1051 VIADEV_REG(viadev, OFFSET_STOP_IDX));
1052 udelay(20);
1053 snd_via82xx_codec_ready(chip, 0);
1054 return 0;
1055 }
1056
1057 /*
1058 * prepare callback for multi-channel playback on via823x
1059 */
1060 static int snd_via8233_multi_prepare(struct snd_pcm_substream *substream)
1061 {
1062 struct via82xx *chip = snd_pcm_substream_chip(substream);
1063 struct viadev *viadev = substream->runtime->private_data;
1064 struct snd_pcm_runtime *runtime = substream->runtime;
1065 unsigned int slots;
1066 int fmt;
1067
1068 if (via_lock_rate(&chip->rates[0], runtime->rate) < 0)
1069 return -EINVAL;
1070 snd_ac97_set_rate(chip->ac97, AC97_PCM_FRONT_DAC_RATE, runtime->rate);
1071 snd_ac97_set_rate(chip->ac97, AC97_PCM_SURR_DAC_RATE, runtime->rate);
1072 snd_ac97_set_rate(chip->ac97, AC97_PCM_LFE_DAC_RATE, runtime->rate);
1073 snd_ac97_set_rate(chip->ac97, AC97_SPDIF, runtime->rate);
1074 snd_via82xx_channel_reset(chip, viadev);
1075 snd_via82xx_set_table_ptr(chip, viadev);
1076
1077 fmt = (runtime->format == SNDRV_PCM_FORMAT_S16_LE) ?
1078 VIA_REG_MULTPLAY_FMT_16BIT : VIA_REG_MULTPLAY_FMT_8BIT;
1079 fmt |= runtime->channels << 4;
1080 outb(fmt, VIADEV_REG(viadev, OFS_MULTPLAY_FORMAT));
1081 #if 0
1082 if (chip->revision == VIA_REV_8233A)
1083 slots = 0;
1084 else
1085 #endif
1086 {
1087 /* set sample number to slot 3, 4, 7, 8, 6, 9 (for VIA8233/C,8235) */
1088 /* corresponding to FL, FR, RL, RR, C, LFE ?? */
1089 switch (runtime->channels) {
1090 case 1: slots = (1<<0) | (1<<4); break;
1091 case 2: slots = (1<<0) | (2<<4); break;
1092 case 3: slots = (1<<0) | (2<<4) | (5<<8); break;
1093 case 4: slots = (1<<0) | (2<<4) | (3<<8) | (4<<12); break;
1094 case 5: slots = (1<<0) | (2<<4) | (3<<8) | (4<<12) | (5<<16); break;
1095 case 6: slots = (1<<0) | (2<<4) | (3<<8) | (4<<12) | (5<<16) | (6<<20); break;
1096 default: slots = 0; break;
1097 }
1098 }
1099 /* STOP index is never reached */
1100 outl(0xff000000 | slots, VIADEV_REG(viadev, OFFSET_STOP_IDX));
1101 udelay(20);
1102 snd_via82xx_codec_ready(chip, 0);
1103 return 0;
1104 }
1105
1106 /*
1107 * prepare callback for capture on via823x
1108 */
1109 static int snd_via8233_capture_prepare(struct snd_pcm_substream *substream)
1110 {
1111 struct via82xx *chip = snd_pcm_substream_chip(substream);
1112 struct viadev *viadev = substream->runtime->private_data;
1113 struct snd_pcm_runtime *runtime = substream->runtime;
1114
1115 if (via_lock_rate(&chip->rates[1], runtime->rate) < 0)
1116 return -EINVAL;
1117 snd_ac97_set_rate(chip->ac97, AC97_PCM_LR_ADC_RATE, runtime->rate);
1118 snd_via82xx_channel_reset(chip, viadev);
1119 snd_via82xx_set_table_ptr(chip, viadev);
1120 outb(VIA_REG_CAPTURE_FIFO_ENABLE, VIADEV_REG(viadev, OFS_CAPTURE_FIFO));
1121 outl((runtime->format == SNDRV_PCM_FORMAT_S16_LE ? VIA8233_REG_TYPE_16BIT : 0) |
1122 (runtime->channels > 1 ? VIA8233_REG_TYPE_STEREO : 0) |
1123 0xff000000, /* STOP index is never reached */
1124 VIADEV_REG(viadev, OFFSET_STOP_IDX));
1125 udelay(20);
1126 snd_via82xx_codec_ready(chip, 0);
1127 return 0;
1128 }
1129
1130
1131 /*
1132 * pcm hardware definition, identical for both playback and capture
1133 */
1134 static struct snd_pcm_hardware snd_via82xx_hw =
1135 {
1136 .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1137 SNDRV_PCM_INFO_BLOCK_TRANSFER |
1138 SNDRV_PCM_INFO_MMAP_VALID |
1139 /* SNDRV_PCM_INFO_RESUME | */
1140 SNDRV_PCM_INFO_PAUSE),
1141 .formats = SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
1142 .rates = SNDRV_PCM_RATE_48000,
1143 .rate_min = 48000,
1144 .rate_max = 48000,
1145 .channels_min = 1,
1146 .channels_max = 2,
1147 .buffer_bytes_max = 128 * 1024,
1148 .period_bytes_min = 32,
1149 .period_bytes_max = 128 * 1024,
1150 .periods_min = 2,
1151 .periods_max = VIA_TABLE_SIZE / 2,
1152 .fifo_size = 0,
1153 };
1154
1155
1156 /*
1157 * open callback skeleton
1158 */
1159 static int snd_via82xx_pcm_open(struct via82xx *chip, struct viadev *viadev,
1160 struct snd_pcm_substream *substream)
1161 {
1162 struct snd_pcm_runtime *runtime = substream->runtime;
1163 int err;
1164 struct via_rate_lock *ratep;
1165
1166 runtime->hw = snd_via82xx_hw;
1167
1168 /* set the hw rate condition */
1169 ratep = &chip->rates[viadev->direction];
1170 spin_lock_irq(&ratep->lock);
1171 ratep->used++;
1172 if (chip->spdif_on && viadev->reg_offset == 0x30) {
1173 /* DXS#3 and spdif is on */
1174 runtime->hw.rates = chip->ac97->rates[AC97_RATES_SPDIF];
1175 snd_pcm_limit_hw_rates(runtime);
1176 } else if (chip->dxs_fixed && viadev->reg_offset < 0x40) {
1177 /* fixed DXS playback rate */
1178 runtime->hw.rates = SNDRV_PCM_RATE_48000;
1179 runtime->hw.rate_min = runtime->hw.rate_max = 48000;
1180 } else if (chip->dxs_src && viadev->reg_offset < 0x40) {
1181 /* use full SRC capabilities of DXS */
1182 runtime->hw.rates = (SNDRV_PCM_RATE_CONTINUOUS |
1183 SNDRV_PCM_RATE_8000_48000);
1184 runtime->hw.rate_min = 8000;
1185 runtime->hw.rate_max = 48000;
1186 } else if (! ratep->rate) {
1187 int idx = viadev->direction ? AC97_RATES_ADC : AC97_RATES_FRONT_DAC;
1188 runtime->hw.rates = chip->ac97->rates[idx];
1189 snd_pcm_limit_hw_rates(runtime);
1190 } else {
1191 /* a fixed rate */
1192 runtime->hw.rates = SNDRV_PCM_RATE_KNOT;
1193 runtime->hw.rate_max = runtime->hw.rate_min = ratep->rate;
1194 }
1195 spin_unlock_irq(&ratep->lock);
1196
1197 /* we may remove following constaint when we modify table entries
1198 in interrupt */
1199 if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
1200 return err;
1201
1202 runtime->private_data = viadev;
1203 viadev->substream = substream;
1204
1205 return 0;
1206 }
1207
1208
1209 /*
1210 * open callback for playback on via686 and via823x DSX
1211 */
1212 static int snd_via82xx_playback_open(struct snd_pcm_substream *substream)
1213 {
1214 struct via82xx *chip = snd_pcm_substream_chip(substream);
1215 struct viadev *viadev = &chip->devs[chip->playback_devno + substream->number];
1216 int err;
1217
1218 if ((err = snd_via82xx_pcm_open(chip, viadev, substream)) < 0)
1219 return err;
1220 return 0;
1221 }
1222
1223 /*
1224 * open callback for playback on via823x multi-channel
1225 */
1226 static int snd_via8233_multi_open(struct snd_pcm_substream *substream)
1227 {
1228 struct via82xx *chip = snd_pcm_substream_chip(substream);
1229 struct viadev *viadev = &chip->devs[chip->multi_devno];
1230 int err;
1231 /* channels constraint for VIA8233A
1232 * 3 and 5 channels are not supported
1233 */
1234 static unsigned int channels[] = {
1235 1, 2, 4, 6
1236 };
1237 static struct snd_pcm_hw_constraint_list hw_constraints_channels = {
1238 .count = ARRAY_SIZE(channels),
1239 .list = channels,
1240 .mask = 0,
1241 };
1242
1243 if ((err = snd_via82xx_pcm_open(chip, viadev, substream)) < 0)
1244 return err;
1245 substream->runtime->hw.channels_max = 6;
1246 if (chip->revision == VIA_REV_8233A)
1247 snd_pcm_hw_constraint_list(substream->runtime, 0,
1248 SNDRV_PCM_HW_PARAM_CHANNELS,
1249 &hw_constraints_channels);
1250 return 0;
1251 }
1252
1253 /*
1254 * open callback for capture on via686 and via823x
1255 */
1256 static int snd_via82xx_capture_open(struct snd_pcm_substream *substream)
1257 {
1258 struct via82xx *chip = snd_pcm_substream_chip(substream);
1259 struct viadev *viadev = &chip->devs[chip->capture_devno + substream->pcm->device];
1260
1261 return snd_via82xx_pcm_open(chip, viadev, substream);
1262 }
1263
1264 /*
1265 * close callback
1266 */
1267 static int snd_via82xx_pcm_close(struct snd_pcm_substream *substream)
1268 {
1269 struct via82xx *chip = snd_pcm_substream_chip(substream);
1270 struct viadev *viadev = substream->runtime->private_data;
1271 struct via_rate_lock *ratep;
1272
1273 /* release the rate lock */
1274 ratep = &chip->rates[viadev->direction];
1275 spin_lock_irq(&ratep->lock);
1276 ratep->used--;
1277 if (! ratep->used)
1278 ratep->rate = 0;
1279 spin_unlock_irq(&ratep->lock);
1280 if (! ratep->rate) {
1281 if (! viadev->direction) {
1282 snd_ac97_update_power(chip->ac97,
1283 AC97_PCM_FRONT_DAC_RATE, 0);
1284 snd_ac97_update_power(chip->ac97,
1285 AC97_PCM_SURR_DAC_RATE, 0);
1286 snd_ac97_update_power(chip->ac97,
1287 AC97_PCM_LFE_DAC_RATE, 0);
1288 } else
1289 snd_ac97_update_power(chip->ac97,
1290 AC97_PCM_LR_ADC_RATE, 0);
1291 }
1292 viadev->substream = NULL;
1293 return 0;
1294 }
1295
1296
1297 /* via686 playback callbacks */
1298 static struct snd_pcm_ops snd_via686_playback_ops = {
1299 .open = snd_via82xx_playback_open,
1300 .close = snd_via82xx_pcm_close,
1301 .ioctl = snd_pcm_lib_ioctl,
1302 .hw_params = snd_via82xx_hw_params,
1303 .hw_free = snd_via82xx_hw_free,
1304 .prepare = snd_via686_playback_prepare,
1305 .trigger = snd_via82xx_pcm_trigger,
1306 .pointer = snd_via686_pcm_pointer,
1307 .page = snd_pcm_sgbuf_ops_page,
1308 };
1309
1310 /* via686 capture callbacks */
1311 static struct snd_pcm_ops snd_via686_capture_ops = {
1312 .open = snd_via82xx_capture_open,
1313 .close = snd_via82xx_pcm_close,
1314 .ioctl = snd_pcm_lib_ioctl,
1315 .hw_params = snd_via82xx_hw_params,
1316 .hw_free = snd_via82xx_hw_free,
1317 .prepare = snd_via686_capture_prepare,
1318 .trigger = snd_via82xx_pcm_trigger,
1319 .pointer = snd_via686_pcm_pointer,
1320 .page = snd_pcm_sgbuf_ops_page,
1321 };
1322
1323 /* via823x DSX playback callbacks */
1324 static struct snd_pcm_ops snd_via8233_playback_ops = {
1325 .open = snd_via82xx_playback_open,
1326 .close = snd_via82xx_pcm_close,
1327 .ioctl = snd_pcm_lib_ioctl,
1328 .hw_params = snd_via82xx_hw_params,
1329 .hw_free = snd_via82xx_hw_free,
1330 .prepare = snd_via8233_playback_prepare,
1331 .trigger = snd_via82xx_pcm_trigger,
1332 .pointer = snd_via8233_pcm_pointer,
1333 .page = snd_pcm_sgbuf_ops_page,
1334 };
1335
1336 /* via823x multi-channel playback callbacks */
1337 static struct snd_pcm_ops snd_via8233_multi_ops = {
1338 .open = snd_via8233_multi_open,
1339 .close = snd_via82xx_pcm_close,
1340 .ioctl = snd_pcm_lib_ioctl,
1341 .hw_params = snd_via82xx_hw_params,
1342 .hw_free = snd_via82xx_hw_free,
1343 .prepare = snd_via8233_multi_prepare,
1344 .trigger = snd_via82xx_pcm_trigger,
1345 .pointer = snd_via8233_pcm_pointer,
1346 .page = snd_pcm_sgbuf_ops_page,
1347 };
1348
1349 /* via823x capture callbacks */
1350 static struct snd_pcm_ops snd_via8233_capture_ops = {
1351 .open = snd_via82xx_capture_open,
1352 .close = snd_via82xx_pcm_close,
1353 .ioctl = snd_pcm_lib_ioctl,
1354 .hw_params = snd_via82xx_hw_params,
1355 .hw_free = snd_via82xx_hw_free,
1356 .prepare = snd_via8233_capture_prepare,
1357 .trigger = snd_via82xx_pcm_trigger,
1358 .pointer = snd_via8233_pcm_pointer,
1359 .page = snd_pcm_sgbuf_ops_page,
1360 };
1361
1362
1363 static void init_viadev(struct via82xx *chip, int idx, unsigned int reg_offset,
1364 int shadow_pos, int direction)
1365 {
1366 chip->devs[idx].reg_offset = reg_offset;
1367 chip->devs[idx].shadow_shift = shadow_pos * 4;
1368 chip->devs[idx].direction = direction;
1369 chip->devs[idx].port = chip->port + reg_offset;
1370 }
1371
1372 /*
1373 * create pcm instances for VIA8233, 8233C and 8235 (not 8233A)
1374 */
1375 static int __devinit snd_via8233_pcm_new(struct via82xx *chip)
1376 {
1377 struct snd_pcm *pcm;
1378 int i, err;
1379
1380 chip->playback_devno = 0; /* x 4 */
1381 chip->multi_devno = 4; /* x 1 */
1382 chip->capture_devno = 5; /* x 2 */
1383 chip->num_devs = 7;
1384 chip->intr_mask = 0x33033333; /* FLAG|EOL for rec0-1, mc, sdx0-3 */
1385
1386 /* PCM #0: 4 DSX playbacks and 1 capture */
1387 err = snd_pcm_new(chip->card, chip->card->shortname, 0, 4, 1, &pcm);
1388 if (err < 0)
1389 return err;
1390 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_via8233_playback_ops);
1391 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_via8233_capture_ops);
1392 pcm->private_data = chip;
1393 strcpy(pcm->name, chip->card->shortname);
1394 chip->pcms[0] = pcm;
1395 /* set up playbacks */
1396 for (i = 0; i < 4; i++)
1397 init_viadev(chip, i, 0x10 * i, i, 0);
1398 /* capture */
1399 init_viadev(chip, chip->capture_devno, VIA_REG_CAPTURE_8233_STATUS, 6, 1);
1400
1401 if ((err = snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
1402 snd_dma_pci_data(chip->pci),
1403 64*1024, 128*1024)) < 0)
1404 return err;
1405
1406 /* PCM #1: multi-channel playback and 2nd capture */
1407 err = snd_pcm_new(chip->card, chip->card->shortname, 1, 1, 1, &pcm);
1408 if (err < 0)
1409 return err;
1410 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_via8233_multi_ops);
1411 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_via8233_capture_ops);
1412 pcm->private_data = chip;
1413 strcpy(pcm->name, chip->card->shortname);
1414 chip->pcms[1] = pcm;
1415 /* set up playback */
1416 init_viadev(chip, chip->multi_devno, VIA_REG_MULTPLAY_STATUS, 4, 0);
1417 /* set up capture */
1418 init_viadev(chip, chip->capture_devno + 1, VIA_REG_CAPTURE_8233_STATUS + 0x10, 7, 1);
1419
1420 if ((err = snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
1421 snd_dma_pci_data(chip->pci),
1422 64*1024, 128*1024)) < 0)
1423 return err;
1424
1425 return 0;
1426 }
1427
1428 /*
1429 * create pcm instances for VIA8233A
1430 */
1431 static int __devinit snd_via8233a_pcm_new(struct via82xx *chip)
1432 {
1433 struct snd_pcm *pcm;
1434 int err;
1435
1436 chip->multi_devno = 0;
1437 chip->playback_devno = 1;
1438 chip->capture_devno = 2;
1439 chip->num_devs = 3;
1440 chip->intr_mask = 0x03033000; /* FLAG|EOL for rec0, mc, sdx3 */
1441
1442 /* PCM #0: multi-channel playback and capture */
1443 err = snd_pcm_new(chip->card, chip->card->shortname, 0, 1, 1, &pcm);
1444 if (err < 0)
1445 return err;
1446 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_via8233_multi_ops);
1447 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_via8233_capture_ops);
1448 pcm->private_data = chip;
1449 strcpy(pcm->name, chip->card->shortname);
1450 chip->pcms[0] = pcm;
1451 /* set up playback */
1452 init_viadev(chip, chip->multi_devno, VIA_REG_MULTPLAY_STATUS, 4, 0);
1453 /* capture */
1454 init_viadev(chip, chip->capture_devno, VIA_REG_CAPTURE_8233_STATUS, 6, 1);
1455
1456 if ((err = snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
1457 snd_dma_pci_data(chip->pci),
1458 64*1024, 128*1024)) < 0)
1459 return err;
1460
1461 /* SPDIF supported? */
1462 if (! ac97_can_spdif(chip->ac97))
1463 return 0;
1464
1465 /* PCM #1: DXS3 playback (for spdif) */
1466 err = snd_pcm_new(chip->card, chip->card->shortname, 1, 1, 0, &pcm);
1467 if (err < 0)
1468 return err;
1469 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_via8233_playback_ops);
1470 pcm->private_data = chip;
1471 strcpy(pcm->name, chip->card->shortname);
1472 chip->pcms[1] = pcm;
1473 /* set up playback */
1474 init_viadev(chip, chip->playback_devno, 0x30, 3, 0);
1475
1476 if ((err = snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
1477 snd_dma_pci_data(chip->pci),
1478 64*1024, 128*1024)) < 0)
1479 return err;
1480
1481 return 0;
1482 }
1483
1484 /*
1485 * create a pcm instance for via686a/b
1486 */
1487 static int __devinit snd_via686_pcm_new(struct via82xx *chip)
1488 {
1489 struct snd_pcm *pcm;
1490 int err;
1491
1492 chip->playback_devno = 0;
1493 chip->capture_devno = 1;
1494 chip->num_devs = 2;
1495 chip->intr_mask = 0x77; /* FLAG | EOL for PB, CP, FM */
1496
1497 err = snd_pcm_new(chip->card, chip->card->shortname, 0, 1, 1, &pcm);
1498 if (err < 0)
1499 return err;
1500 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_via686_playback_ops);
1501 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_via686_capture_ops);
1502 pcm->private_data = chip;
1503 strcpy(pcm->name, chip->card->shortname);
1504 chip->pcms[0] = pcm;
1505 init_viadev(chip, 0, VIA_REG_PLAYBACK_STATUS, 0, 0);
1506 init_viadev(chip, 1, VIA_REG_CAPTURE_STATUS, 0, 1);
1507
1508 if ((err = snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
1509 snd_dma_pci_data(chip->pci),
1510 64*1024, 128*1024)) < 0)
1511 return err;
1512
1513 return 0;
1514 }
1515
1516
1517 /*
1518 * Mixer part
1519 */
1520
1521 static int snd_via8233_capture_source_info(struct snd_kcontrol *kcontrol,
1522 struct snd_ctl_elem_info *uinfo)
1523 {
1524 /* formerly they were "Line" and "Mic", but it looks like that they
1525 * have nothing to do with the actual physical connections...
1526 */
1527 static char *texts[2] = {
1528 "Input1", "Input2"
1529 };
1530 uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
1531 uinfo->count = 1;
1532 uinfo->value.enumerated.items = 2;
1533 if (uinfo->value.enumerated.item >= 2)
1534 uinfo->value.enumerated.item = 1;
1535 strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
1536 return 0;
1537 }
1538
1539 static int snd_via8233_capture_source_get(struct snd_kcontrol *kcontrol,
1540 struct snd_ctl_elem_value *ucontrol)
1541 {
1542 struct via82xx *chip = snd_kcontrol_chip(kcontrol);
1543 unsigned long port = chip->port + (kcontrol->id.index ? (VIA_REG_CAPTURE_CHANNEL + 0x10) : VIA_REG_CAPTURE_CHANNEL);
1544 ucontrol->value.enumerated.item[0] = inb(port) & VIA_REG_CAPTURE_CHANNEL_MIC ? 1 : 0;
1545 return 0;
1546 }
1547
1548 static int snd_via8233_capture_source_put(struct snd_kcontrol *kcontrol,
1549 struct snd_ctl_elem_value *ucontrol)
1550 {
1551 struct via82xx *chip = snd_kcontrol_chip(kcontrol);
1552 unsigned long port = chip->port + (kcontrol->id.index ? (VIA_REG_CAPTURE_CHANNEL + 0x10) : VIA_REG_CAPTURE_CHANNEL);
1553 u8 val, oval;
1554
1555 spin_lock_irq(&chip->reg_lock);
1556 oval = inb(port);
1557 val = oval & ~VIA_REG_CAPTURE_CHANNEL_MIC;
1558 if (ucontrol->value.enumerated.item[0])
1559 val |= VIA_REG_CAPTURE_CHANNEL_MIC;
1560 if (val != oval)
1561 outb(val, port);
1562 spin_unlock_irq(&chip->reg_lock);
1563 return val != oval;
1564 }
1565
1566 static struct snd_kcontrol_new snd_via8233_capture_source __devinitdata = {
1567 .name = "Input Source Select",
1568 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1569 .info = snd_via8233_capture_source_info,
1570 .get = snd_via8233_capture_source_get,
1571 .put = snd_via8233_capture_source_put,
1572 };
1573
1574 #define snd_via8233_dxs3_spdif_info snd_ctl_boolean_mono_info
1575
1576 static int snd_via8233_dxs3_spdif_get(struct snd_kcontrol *kcontrol,
1577 struct snd_ctl_elem_value *ucontrol)
1578 {
1579 struct via82xx *chip = snd_kcontrol_chip(kcontrol);
1580 u8 val;
1581
1582 pci_read_config_byte(chip->pci, VIA8233_SPDIF_CTRL, &val);
1583 ucontrol->value.integer.value[0] = (val & VIA8233_SPDIF_DX3) ? 1 : 0;
1584 return 0;
1585 }
1586
1587 static int snd_via8233_dxs3_spdif_put(struct snd_kcontrol *kcontrol,
1588 struct snd_ctl_elem_value *ucontrol)
1589 {
1590 struct via82xx *chip = snd_kcontrol_chip(kcontrol);
1591 u8 val, oval;
1592
1593 pci_read_config_byte(chip->pci, VIA8233_SPDIF_CTRL, &oval);
1594 val = oval & ~VIA8233_SPDIF_DX3;
1595 if (ucontrol->value.integer.value[0])
1596 val |= VIA8233_SPDIF_DX3;
1597 /* save the spdif flag for rate filtering */
1598 chip->spdif_on = ucontrol->value.integer.value[0] ? 1 : 0;
1599 if (val != oval) {
1600 pci_write_config_byte(chip->pci, VIA8233_SPDIF_CTRL, val);
1601 return 1;
1602 }
1603 return 0;
1604 }
1605
1606 static struct snd_kcontrol_new snd_via8233_dxs3_spdif_control __devinitdata = {
1607 .name = SNDRV_CTL_NAME_IEC958("Output ",NONE,SWITCH),
1608 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1609 .info = snd_via8233_dxs3_spdif_info,
1610 .get = snd_via8233_dxs3_spdif_get,
1611 .put = snd_via8233_dxs3_spdif_put,
1612 };
1613
1614 static int snd_via8233_dxs_volume_info(struct snd_kcontrol *kcontrol,
1615 struct snd_ctl_elem_info *uinfo)
1616 {
1617 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
1618 uinfo->count = 2;
1619 uinfo->value.integer.min = 0;
1620 uinfo->value.integer.max = VIA_DXS_MAX_VOLUME;
1621 return 0;
1622 }
1623
1624 static int snd_via8233_dxs_volume_get(struct snd_kcontrol *kcontrol,
1625 struct snd_ctl_elem_value *ucontrol)
1626 {
1627 struct via82xx *chip = snd_kcontrol_chip(kcontrol);
1628 unsigned int idx = snd_ctl_get_ioff(kcontrol, &ucontrol->id);
1629
1630 ucontrol->value.integer.value[0] = VIA_DXS_MAX_VOLUME - chip->playback_volume[idx][0];
1631 ucontrol->value.integer.value[1] = VIA_DXS_MAX_VOLUME - chip->playback_volume[idx][1];
1632 return 0;
1633 }
1634
1635 static int snd_via8233_pcmdxs_volume_get(struct snd_kcontrol *kcontrol,
1636 struct snd_ctl_elem_value *ucontrol)
1637 {
1638 struct via82xx *chip = snd_kcontrol_chip(kcontrol);
1639 ucontrol->value.integer.value[0] = VIA_DXS_MAX_VOLUME - chip->playback_volume_c[0];
1640 ucontrol->value.integer.value[1] = VIA_DXS_MAX_VOLUME - chip->playback_volume_c[1];
1641 return 0;
1642 }
1643
1644 static int snd_via8233_dxs_volume_put(struct snd_kcontrol *kcontrol,
1645 struct snd_ctl_elem_value *ucontrol)
1646 {
1647 struct via82xx *chip = snd_kcontrol_chip(kcontrol);
1648 unsigned int idx = snd_ctl_get_ioff(kcontrol, &ucontrol->id);
1649 unsigned long port = chip->port + 0x10 * idx;
1650 unsigned char val;
1651 int i, change = 0;
1652
1653 for (i = 0; i < 2; i++) {
1654 val = ucontrol->value.integer.value[i];
1655 if (val > VIA_DXS_MAX_VOLUME)
1656 val = VIA_DXS_MAX_VOLUME;
1657 val = VIA_DXS_MAX_VOLUME - val;
1658 change |= val != chip->playback_volume[idx][i];
1659 if (change) {
1660 chip->playback_volume[idx][i] = val;
1661 outb(val, port + VIA_REG_OFS_PLAYBACK_VOLUME_L + i);
1662 }
1663 }
1664 return change;
1665 }
1666
1667 static int snd_via8233_pcmdxs_volume_put(struct snd_kcontrol *kcontrol,
1668 struct snd_ctl_elem_value *ucontrol)
1669 {
1670 struct via82xx *chip = snd_kcontrol_chip(kcontrol);
1671 unsigned int idx;
1672 unsigned char val;
1673 int i, change = 0;
1674
1675 for (i = 0; i < 2; i++) {
1676 val = ucontrol->value.integer.value[i];
1677 if (val > VIA_DXS_MAX_VOLUME)
1678 val = VIA_DXS_MAX_VOLUME;
1679 val = VIA_DXS_MAX_VOLUME - val;
1680 if (val != chip->playback_volume_c[i]) {
1681 change = 1;
1682 chip->playback_volume_c[i] = val;
1683 for (idx = 0; idx < 4; idx++) {
1684 unsigned long port = chip->port + 0x10 * idx;
1685 chip->playback_volume[idx][i] = val;
1686 outb(val, port + VIA_REG_OFS_PLAYBACK_VOLUME_L + i);
1687 }
1688 }
1689 }
1690 return change;
1691 }
1692
1693 static const DECLARE_TLV_DB_SCALE(db_scale_dxs, -9450, 150, 1);
1694
1695 static struct snd_kcontrol_new snd_via8233_pcmdxs_volume_control __devinitdata = {
1696 .name = "PCM Playback Volume",
1697 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1698 .access = (SNDRV_CTL_ELEM_ACCESS_READWRITE |
1699 SNDRV_CTL_ELEM_ACCESS_TLV_READ),
1700 .info = snd_via8233_dxs_volume_info,
1701 .get = snd_via8233_pcmdxs_volume_get,
1702 .put = snd_via8233_pcmdxs_volume_put,
1703 .tlv = { .p = db_scale_dxs }
1704 };
1705
1706 static struct snd_kcontrol_new snd_via8233_dxs_volume_control __devinitdata = {
1707 .name = "VIA DXS Playback Volume",
1708 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1709 .access = (SNDRV_CTL_ELEM_ACCESS_READWRITE |
1710 SNDRV_CTL_ELEM_ACCESS_TLV_READ),
1711 .count = 4,
1712 .info = snd_via8233_dxs_volume_info,
1713 .get = snd_via8233_dxs_volume_get,
1714 .put = snd_via8233_dxs_volume_put,
1715 .tlv = { .p = db_scale_dxs }
1716 };
1717
1718 /*
1719 */
1720
1721 static void snd_via82xx_mixer_free_ac97_bus(struct snd_ac97_bus *bus)
1722 {
1723 struct via82xx *chip = bus->private_data;
1724 chip->ac97_bus = NULL;
1725 }
1726
1727 static void snd_via82xx_mixer_free_ac97(struct snd_ac97 *ac97)
1728 {
1729 struct via82xx *chip = ac97->private_data;
1730 chip->ac97 = NULL;
1731 }
1732
1733 static struct ac97_quirk ac97_quirks[] = {
1734 {
1735 .subvendor = 0x1106,
1736 .subdevice = 0x4161,
1737 .codec_id = 0x56494161, /* VT1612A */
1738 .name = "Soltek SL-75DRV5",
1739 .type = AC97_TUNE_NONE
1740 },
1741 { /* FIXME: which codec? */
1742 .subvendor = 0x1106,
1743 .subdevice = 0x4161,
1744 .name = "ASRock K7VT2",
1745 .type = AC97_TUNE_HP_ONLY
1746 },
1747 {
1748 .subvendor = 0x1019,
1749 .subdevice = 0x0a81,
1750 .name = "ECS K7VTA3",
1751 .type = AC97_TUNE_HP_ONLY
1752 },
1753 {
1754 .subvendor = 0x1019,
1755 .subdevice = 0x0a85,
1756 .name = "ECS L7VMM2",
1757 .type = AC97_TUNE_HP_ONLY
1758 },
1759 {
1760 .subvendor = 0x1019,
1761 .subdevice = 0x1841,
1762 .name = "ECS K7VTA3",
1763 .type = AC97_TUNE_HP_ONLY
1764 },
1765 {
1766 .subvendor = 0x1849,
1767 .subdevice = 0x3059,
1768 .name = "ASRock K7VM2",
1769 .type = AC97_TUNE_HP_ONLY /* VT1616 */
1770 },
1771 {
1772 .subvendor = 0x14cd,
1773 .subdevice = 0x7002,
1774 .name = "Unknown",
1775 .type = AC97_TUNE_ALC_JACK
1776 },
1777 {
1778 .subvendor = 0x1071,
1779 .subdevice = 0x8590,
1780 .name = "Mitac Mobo",
1781 .type = AC97_TUNE_ALC_JACK
1782 },
1783 {
1784 .subvendor = 0x161f,
1785 .subdevice = 0x202b,
1786 .name = "Arima Notebook",
1787 .type = AC97_TUNE_HP_ONLY,
1788 },
1789 {
1790 .subvendor = 0x161f,
1791 .subdevice = 0x2032,
1792 .name = "Targa Traveller 811",
1793 .type = AC97_TUNE_HP_ONLY,
1794 },
1795 {
1796 .subvendor = 0x161f,
1797 .subdevice = 0x2032,
1798 .name = "m680x",
1799 .type = AC97_TUNE_HP_ONLY, /* http://launchpad.net/bugs/38546 */
1800 },
1801 {
1802 .subvendor = 0x1297,
1803 .subdevice = 0xa232,
1804 .name = "Shuttle AK32VN",
1805 .type = AC97_TUNE_HP_ONLY
1806 },
1807 { } /* terminator */
1808 };
1809
1810 static int __devinit snd_via82xx_mixer_new(struct via82xx *chip, const char *quirk_override)
1811 {
1812 struct snd_ac97_template ac97;
1813 int err;
1814 static struct snd_ac97_bus_ops ops = {
1815 .write = snd_via82xx_codec_write,
1816 .read = snd_via82xx_codec_read,
1817 .wait = snd_via82xx_codec_wait,
1818 };
1819
1820 if ((err = snd_ac97_bus(chip->card, 0, &ops, chip, &chip->ac97_bus)) < 0)
1821 return err;
1822 chip->ac97_bus->private_free = snd_via82xx_mixer_free_ac97_bus;
1823 chip->ac97_bus->clock = chip->ac97_clock;
1824
1825 memset(&ac97, 0, sizeof(ac97));
1826 ac97.private_data = chip;
1827 ac97.private_free = snd_via82xx_mixer_free_ac97;
1828 ac97.pci = chip->pci;
1829 ac97.scaps = AC97_SCAP_SKIP_MODEM | AC97_SCAP_POWER_SAVE;
1830 if ((err = snd_ac97_mixer(chip->ac97_bus, &ac97, &chip->ac97)) < 0)
1831 return err;
1832
1833 snd_ac97_tune_hardware(chip->ac97, ac97_quirks, quirk_override);
1834
1835 if (chip->chip_type != TYPE_VIA686) {
1836 /* use slot 10/11 */
1837 snd_ac97_update_bits(chip->ac97, AC97_EXTENDED_STATUS, 0x03 << 4, 0x03 << 4);
1838 }
1839
1840 return 0;
1841 }
1842
1843 #ifdef SUPPORT_JOYSTICK
1844 #define JOYSTICK_ADDR 0x200
1845 static int __devinit snd_via686_create_gameport(struct via82xx *chip, unsigned char *legacy)
1846 {
1847 struct gameport *gp;
1848 struct resource *r;
1849
1850 if (!joystick)
1851 return -ENODEV;
1852
1853 r = request_region(JOYSTICK_ADDR, 8, "VIA686 gameport");
1854 if (!r) {
1855 printk(KERN_WARNING "via82xx: cannot reserve joystick port 0x%#x\n",
1856 JOYSTICK_ADDR);
1857 return -EBUSY;
1858 }
1859
1860 chip->gameport = gp = gameport_allocate_port();
1861 if (!gp) {
1862 printk(KERN_ERR "via82xx: cannot allocate memory for gameport\n");
1863 release_and_free_resource(r);
1864 return -ENOMEM;
1865 }
1866
1867 gameport_set_name(gp, "VIA686 Gameport");
1868 gameport_set_phys(gp, "pci%s/gameport0", pci_name(chip->pci));
1869 gameport_set_dev_parent(gp, &chip->pci->dev);
1870 gp->io = JOYSTICK_ADDR;
1871 gameport_set_port_data(gp, r);
1872
1873 /* Enable legacy joystick port */
1874 *legacy |= VIA_FUNC_ENABLE_GAME;
1875 pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE, *legacy);
1876
1877 gameport_register_port(chip->gameport);
1878
1879 return 0;
1880 }
1881
1882 static void snd_via686_free_gameport(struct via82xx *chip)
1883 {
1884 if (chip->gameport) {
1885 struct resource *r = gameport_get_port_data(chip->gameport);
1886
1887 gameport_unregister_port(chip->gameport);
1888 chip->gameport = NULL;
1889 release_and_free_resource(r);
1890 }
1891 }
1892 #else
1893 static inline int snd_via686_create_gameport(struct via82xx *chip, unsigned char *legacy)
1894 {
1895 return -ENOSYS;
1896 }
1897 static inline void snd_via686_free_gameport(struct via82xx *chip) { }
1898 #endif
1899
1900
1901 /*
1902 *
1903 */
1904
1905 static int __devinit snd_via8233_init_misc(struct via82xx *chip)
1906 {
1907 int i, err, caps;
1908 unsigned char val;
1909
1910 caps = chip->chip_type == TYPE_VIA8233A ? 1 : 2;
1911 for (i = 0; i < caps; i++) {
1912 snd_via8233_capture_source.index = i;
1913 err = snd_ctl_add(chip->card, snd_ctl_new1(&snd_via8233_capture_source, chip));
1914 if (err < 0)
1915 return err;
1916 }
1917 if (ac97_can_spdif(chip->ac97)) {
1918 err = snd_ctl_add(chip->card, snd_ctl_new1(&snd_via8233_dxs3_spdif_control, chip));
1919 if (err < 0)
1920 return err;
1921 }
1922 if (chip->chip_type != TYPE_VIA8233A) {
1923 /* when no h/w PCM volume control is found, use DXS volume control
1924 * as the PCM vol control
1925 */
1926 struct snd_ctl_elem_id sid;
1927 memset(&sid, 0, sizeof(sid));
1928 strcpy(sid.name, "PCM Playback Volume");
1929 sid.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
1930 if (! snd_ctl_find_id(chip->card, &sid)) {
1931 snd_printd(KERN_INFO "Using DXS as PCM Playback\n");
1932 err = snd_ctl_add(chip->card, snd_ctl_new1(&snd_via8233_pcmdxs_volume_control, chip));
1933 if (err < 0)
1934 return err;
1935 }
1936 else /* Using DXS when PCM emulation is enabled is really weird */
1937 {
1938 /* Standalone DXS controls */
1939 err = snd_ctl_add(chip->card, snd_ctl_new1(&snd_via8233_dxs_volume_control, chip));
1940 if (err < 0)
1941 return err;
1942 }
1943 }
1944 /* select spdif data slot 10/11 */
1945 pci_read_config_byte(chip->pci, VIA8233_SPDIF_CTRL, &val);
1946 val = (val & ~VIA8233_SPDIF_SLOT_MASK) | VIA8233_SPDIF_SLOT_1011;
1947 val &= ~VIA8233_SPDIF_DX3; /* SPDIF off as default */
1948 pci_write_config_byte(chip->pci, VIA8233_SPDIF_CTRL, val);
1949
1950 return 0;
1951 }
1952
1953 static int __devinit snd_via686_init_misc(struct via82xx *chip)
1954 {
1955 unsigned char legacy, legacy_cfg;
1956 int rev_h = 0;
1957
1958 legacy = chip->old_legacy;
1959 legacy_cfg = chip->old_legacy_cfg;
1960 legacy |= VIA_FUNC_MIDI_IRQMASK; /* FIXME: correct? (disable MIDI) */
1961 legacy &= ~VIA_FUNC_ENABLE_GAME; /* disable joystick */
1962 if (chip->revision >= VIA_REV_686_H) {
1963 rev_h = 1;
1964 if (mpu_port >= 0x200) { /* force MIDI */
1965 mpu_port &= 0xfffc;
1966 pci_write_config_dword(chip->pci, 0x18, mpu_port | 0x01);
1967 #ifdef CONFIG_PM
1968 chip->mpu_port_saved = mpu_port;
1969 #endif
1970 } else {
1971 mpu_port = pci_resource_start(chip->pci, 2);
1972 }
1973 } else {
1974 switch (mpu_port) { /* force MIDI */
1975 case 0x300:
1976 case 0x310:
1977 case 0x320:
1978 case 0x330:
1979 legacy_cfg &= ~(3 << 2);
1980 legacy_cfg |= (mpu_port & 0x0030) >> 2;
1981 break;
1982 default: /* no, use BIOS settings */
1983 if (legacy & VIA_FUNC_ENABLE_MIDI)
1984 mpu_port = 0x300 + ((legacy_cfg & 0x000c) << 2);
1985 break;
1986 }
1987 }
1988 if (mpu_port >= 0x200 &&
1989 (chip->mpu_res = request_region(mpu_port, 2, "VIA82xx MPU401"))
1990 != NULL) {
1991 if (rev_h)
1992 legacy |= VIA_FUNC_MIDI_PNP; /* enable PCI I/O 2 */
1993 legacy |= VIA_FUNC_ENABLE_MIDI;
1994 } else {
1995 if (rev_h)
1996 legacy &= ~VIA_FUNC_MIDI_PNP; /* disable PCI I/O 2 */
1997 legacy &= ~VIA_FUNC_ENABLE_MIDI;
1998 mpu_port = 0;
1999 }
2000
2001 pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE, legacy);
2002 pci_write_config_byte(chip->pci, VIA_PNP_CONTROL, legacy_cfg);
2003 if (chip->mpu_res) {
2004 if (snd_mpu401_uart_new(chip->card, 0, MPU401_HW_VIA686A,
2005 mpu_port, MPU401_INFO_INTEGRATED,
2006 chip->irq, 0, &chip->rmidi) < 0) {
2007 printk(KERN_WARNING "unable to initialize MPU-401"
2008 " at 0x%lx, skipping\n", mpu_port);
2009 legacy &= ~VIA_FUNC_ENABLE_MIDI;
2010 } else {
2011 legacy &= ~VIA_FUNC_MIDI_IRQMASK; /* enable MIDI interrupt */
2012 }
2013 pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE, legacy);
2014 }
2015
2016 snd_via686_create_gameport(chip, &legacy);
2017
2018 #ifdef CONFIG_PM
2019 chip->legacy_saved = legacy;
2020 chip->legacy_cfg_saved = legacy_cfg;
2021 #endif
2022
2023 return 0;
2024 }
2025
2026
2027 /*
2028 * proc interface
2029 */
2030 static void snd_via82xx_proc_read(struct snd_info_entry *entry,
2031 struct snd_info_buffer *buffer)
2032 {
2033 struct via82xx *chip = entry->private_data;
2034 int i;
2035
2036 snd_iprintf(buffer, "%s\n\n", chip->card->longname);
2037 for (i = 0; i < 0xa0; i += 4) {
2038 snd_iprintf(buffer, "%02x: %08x\n", i, inl(chip->port + i));
2039 }
2040 }
2041
2042 static void __devinit snd_via82xx_proc_init(struct via82xx *chip)
2043 {
2044 struct snd_info_entry *entry;
2045
2046 if (! snd_card_proc_new(chip->card, "via82xx", &entry))
2047 snd_info_set_text_ops(entry, chip, snd_via82xx_proc_read);
2048 }
2049
2050 /*
2051 *
2052 */
2053
2054 static int snd_via82xx_chip_init(struct via82xx *chip)
2055 {
2056 unsigned int val;
2057 unsigned long end_time;
2058 unsigned char pval;
2059
2060 #if 0 /* broken on K7M? */
2061 if (chip->chip_type == TYPE_VIA686)
2062 /* disable all legacy ports */
2063 pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE, 0);
2064 #endif
2065 pci_read_config_byte(chip->pci, VIA_ACLINK_STAT, &pval);
2066 if (! (pval & VIA_ACLINK_C00_READY)) { /* codec not ready? */
2067 /* deassert ACLink reset, force SYNC */
2068 pci_write_config_byte(chip->pci, VIA_ACLINK_CTRL,
2069 VIA_ACLINK_CTRL_ENABLE |
2070 VIA_ACLINK_CTRL_RESET |
2071 VIA_ACLINK_CTRL_SYNC);
2072 udelay(100);
2073 #if 1 /* FIXME: should we do full reset here for all chip models? */
2074 pci_write_config_byte(chip->pci, VIA_ACLINK_CTRL, 0x00);
2075 udelay(100);
2076 #else
2077 /* deassert ACLink reset, force SYNC (warm AC'97 reset) */
2078 pci_write_config_byte(chip->pci, VIA_ACLINK_CTRL,
2079 VIA_ACLINK_CTRL_RESET|VIA_ACLINK_CTRL_SYNC);
2080 udelay(2);
2081 #endif
2082 /* ACLink on, deassert ACLink reset, VSR, SGD data out */
2083 /* note - FM data out has trouble with non VRA codecs !! */
2084 pci_write_config_byte(chip->pci, VIA_ACLINK_CTRL, VIA_ACLINK_CTRL_INIT);
2085 udelay(100);
2086 }
2087
2088 /* Make sure VRA is enabled, in case we didn't do a
2089 * complete codec reset, above */
2090 pci_read_config_byte(chip->pci, VIA_ACLINK_CTRL, &pval);
2091 if ((pval & VIA_ACLINK_CTRL_INIT) != VIA_ACLINK_CTRL_INIT) {
2092 /* ACLink on, deassert ACLink reset, VSR, SGD data out */
2093 /* note - FM data out has trouble with non VRA codecs !! */
2094 pci_write_config_byte(chip->pci, VIA_ACLINK_CTRL, VIA_ACLINK_CTRL_INIT);
2095 udelay(100);
2096 }
2097
2098 /* wait until codec ready */
2099 end_time = jiffies + msecs_to_jiffies(750);
2100 do {
2101 pci_read_config_byte(chip->pci, VIA_ACLINK_STAT, &pval);
2102 if (pval & VIA_ACLINK_C00_READY) /* primary codec ready */
2103 break;
2104 schedule_timeout_uninterruptible(1);
2105 } while (time_before(jiffies, end_time));
2106
2107 if ((val = snd_via82xx_codec_xread(chip)) & VIA_REG_AC97_BUSY)
2108 snd_printk(KERN_ERR "AC'97 codec is not ready [0x%x]\n", val);
2109
2110 #if 0 /* FIXME: we don't support the second codec yet so skip the detection now.. */
2111 snd_via82xx_codec_xwrite(chip, VIA_REG_AC97_READ |
2112 VIA_REG_AC97_SECONDARY_VALID |
2113 (VIA_REG_AC97_CODEC_ID_SECONDARY << VIA_REG_AC97_CODEC_ID_SHIFT));
2114 end_time = jiffies + msecs_to_jiffies(750);
2115 snd_via82xx_codec_xwrite(chip, VIA_REG_AC97_READ |
2116 VIA_REG_AC97_SECONDARY_VALID |
2117 (VIA_REG_AC97_CODEC_ID_SECONDARY << VIA_REG_AC97_CODEC_ID_SHIFT));
2118 do {
2119 if ((val = snd_via82xx_codec_xread(chip)) & VIA_REG_AC97_SECONDARY_VALID) {
2120 chip->ac97_secondary = 1;
2121 goto __ac97_ok2;
2122 }
2123 schedule_timeout_uninterruptible(1);
2124 } while (time_before(jiffies, end_time));
2125 /* This is ok, the most of motherboards have only one codec */
2126
2127 __ac97_ok2:
2128 #endif
2129
2130 if (chip->chip_type == TYPE_VIA686) {
2131 /* route FM trap to IRQ, disable FM trap */
2132 pci_write_config_byte(chip->pci, VIA_FM_NMI_CTRL, 0);
2133 /* disable all GPI interrupts */
2134 outl(0, VIAREG(chip, GPI_INTR));
2135 }
2136
2137 if (chip->chip_type != TYPE_VIA686) {
2138 /* Workaround for Award BIOS bug:
2139 * DXS channels don't work properly with VRA if MC97 is disabled.
2140 */
2141 struct pci_dev *pci;
2142 pci = pci_get_device(0x1106, 0x3068, NULL); /* MC97 */
2143 if (pci) {
2144 unsigned char data;
2145 pci_read_config_byte(pci, 0x44, &data);
2146 pci_write_config_byte(pci, 0x44, data | 0x40);
2147 pci_dev_put(pci);
2148 }
2149 }
2150
2151 if (chip->chip_type != TYPE_VIA8233A) {
2152 int i, idx;
2153 for (idx = 0; idx < 4; idx++) {
2154 unsigned long port = chip->port + 0x10 * idx;
2155 for (i = 0; i < 2; i++) {
2156 chip->playback_volume[idx][i]=chip->playback_volume_c[i];
2157 outb(chip->playback_volume_c[i],
2158 port + VIA_REG_OFS_PLAYBACK_VOLUME_L + i);
2159 }
2160 }
2161 }
2162
2163 return 0;
2164 }
2165
2166 #ifdef CONFIG_PM
2167 /*
2168 * power management
2169 */
2170 static int snd_via82xx_suspend(struct pci_dev *pci, pm_message_t state)
2171 {
2172 struct snd_card *card = pci_get_drvdata(pci);
2173 struct via82xx *chip = card->private_data;
2174 int i;
2175
2176 snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
2177 for (i = 0; i < 2; i++)
2178 snd_pcm_suspend_all(chip->pcms[i]);
2179 for (i = 0; i < chip->num_devs; i++)
2180 snd_via82xx_channel_reset(chip, &chip->devs[i]);
2181 synchronize_irq(chip->irq);
2182 snd_ac97_suspend(chip->ac97);
2183
2184 /* save misc values */
2185 if (chip->chip_type != TYPE_VIA686) {
2186 pci_read_config_byte(chip->pci, VIA8233_SPDIF_CTRL, &chip->spdif_ctrl_saved);
2187 chip->capture_src_saved[0] = inb(chip->port + VIA_REG_CAPTURE_CHANNEL);
2188 chip->capture_src_saved[1] = inb(chip->port + VIA_REG_CAPTURE_CHANNEL + 0x10);
2189 }
2190
2191 pci_disable_device(pci);
2192 pci_save_state(pci);
2193 pci_set_power_state(pci, pci_choose_state(pci, state));
2194 return 0;
2195 }
2196
2197 static int snd_via82xx_resume(struct pci_dev *pci)
2198 {
2199 struct snd_card *card = pci_get_drvdata(pci);
2200 struct via82xx *chip = card->private_data;
2201 int i;
2202
2203 pci_set_power_state(pci, PCI_D0);
2204 pci_restore_state(pci);
2205 if (pci_enable_device(pci) < 0) {
2206 printk(KERN_ERR "via82xx: pci_enable_device failed, "
2207 "disabling device\n");
2208 snd_card_disconnect(card);
2209 return -EIO;
2210 }
2211 pci_set_master(pci);
2212
2213 snd_via82xx_chip_init(chip);
2214
2215 if (chip->chip_type == TYPE_VIA686) {
2216 if (chip->mpu_port_saved)
2217 pci_write_config_dword(chip->pci, 0x18, chip->mpu_port_saved | 0x01);
2218 pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE, chip->legacy_saved);
2219 pci_write_config_byte(chip->pci, VIA_PNP_CONTROL, chip->legacy_cfg_saved);
2220 } else {
2221 pci_write_config_byte(chip->pci, VIA8233_SPDIF_CTRL, chip->spdif_ctrl_saved);
2222 outb(chip->capture_src_saved[0], chip->port + VIA_REG_CAPTURE_CHANNEL);
2223 outb(chip->capture_src_saved[1], chip->port + VIA_REG_CAPTURE_CHANNEL + 0x10);
2224 }
2225
2226 snd_ac97_resume(chip->ac97);
2227
2228 for (i = 0; i < chip->num_devs; i++)
2229 snd_via82xx_channel_reset(chip, &chip->devs[i]);
2230
2231 snd_power_change_state(card, SNDRV_CTL_POWER_D0);
2232 return 0;
2233 }
2234 #endif /* CONFIG_PM */
2235
2236 static int snd_via82xx_free(struct via82xx *chip)
2237 {
2238 unsigned int i;
2239
2240 if (chip->irq < 0)
2241 goto __end_hw;
2242 /* disable interrupts */
2243 for (i = 0; i < chip->num_devs; i++)
2244 snd_via82xx_channel_reset(chip, &chip->devs[i]);
2245
2246 if (chip->irq >= 0)
2247 free_irq(chip->irq, chip);
2248 __end_hw:
2249 release_and_free_resource(chip->mpu_res);
2250 pci_release_regions(chip->pci);
2251
2252 if (chip->chip_type == TYPE_VIA686) {
2253 snd_via686_free_gameport(chip);
2254 pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE, chip->old_legacy);
2255 pci_write_config_byte(chip->pci, VIA_PNP_CONTROL, chip->old_legacy_cfg);
2256 }
2257 pci_disable_device(chip->pci);
2258 kfree(chip);
2259 return 0;
2260 }
2261
2262 static int snd_via82xx_dev_free(struct snd_device *device)
2263 {
2264 struct via82xx *chip = device->device_data;
2265 return snd_via82xx_free(chip);
2266 }
2267
2268 static int __devinit snd_via82xx_create(struct snd_card *card,
2269 struct pci_dev *pci,
2270 int chip_type,
2271 int revision,
2272 unsigned int ac97_clock,
2273 struct via82xx ** r_via)
2274 {
2275 struct via82xx *chip;
2276 int err;
2277 static struct snd_device_ops ops = {
2278 .dev_free = snd_via82xx_dev_free,
2279 };
2280
2281 if ((err = pci_enable_device(pci)) < 0)
2282 return err;
2283
2284 if ((chip = kzalloc(sizeof(*chip), GFP_KERNEL)) == NULL) {
2285 pci_disable_device(pci);
2286 return -ENOMEM;
2287 }
2288
2289 chip->chip_type = chip_type;
2290 chip->revision = revision;
2291
2292 spin_lock_init(&chip->reg_lock);
2293 spin_lock_init(&chip->rates[0].lock);
2294 spin_lock_init(&chip->rates[1].lock);
2295 chip->card = card;
2296 chip->pci = pci;
2297 chip->irq = -1;
2298
2299 pci_read_config_byte(pci, VIA_FUNC_ENABLE, &chip->old_legacy);
2300 pci_read_config_byte(pci, VIA_PNP_CONTROL, &chip->old_legacy_cfg);
2301 pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE,
2302 chip->old_legacy & ~(VIA_FUNC_ENABLE_SB|VIA_FUNC_ENABLE_FM));
2303
2304 if ((err = pci_request_regions(pci, card->driver)) < 0) {
2305 kfree(chip);
2306 pci_disable_device(pci);
2307 return err;
2308 }
2309 chip->port = pci_resource_start(pci, 0);
2310 if (request_irq(pci->irq,
2311 chip_type == TYPE_VIA8233 ?
2312 snd_via8233_interrupt : snd_via686_interrupt,
2313 IRQF_SHARED,
2314 card->driver, chip)) {
2315 snd_printk(KERN_ERR "unable to grab IRQ %d\n", pci->irq);
2316 snd_via82xx_free(chip);
2317 return -EBUSY;
2318 }
2319 chip->irq = pci->irq;
2320 if (ac97_clock >= 8000 && ac97_clock <= 48000)
2321 chip->ac97_clock = ac97_clock;
2322 synchronize_irq(chip->irq);
2323
2324 if ((err = snd_via82xx_chip_init(chip)) < 0) {
2325 snd_via82xx_free(chip);
2326 return err;
2327 }
2328
2329 if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
2330 snd_via82xx_free(chip);
2331 return err;
2332 }
2333
2334 /* The 8233 ac97 controller does not implement the master bit
2335 * in the pci command register. IMHO this is a violation of the PCI spec.
2336 * We call pci_set_master here because it does not hurt. */
2337 pci_set_master(pci);
2338
2339 snd_card_set_dev(card, &pci->dev);
2340
2341 *r_via = chip;
2342 return 0;
2343 }
2344
2345 struct via823x_info {
2346 int revision;
2347 char *name;
2348 int type;
2349 };
2350 static struct via823x_info via823x_cards[] __devinitdata = {
2351 { VIA_REV_PRE_8233, "VIA 8233-Pre", TYPE_VIA8233 },
2352 { VIA_REV_8233C, "VIA 8233C", TYPE_VIA8233 },
2353 { VIA_REV_8233, "VIA 8233", TYPE_VIA8233 },
2354 { VIA_REV_8233A, "VIA 8233A", TYPE_VIA8233A },
2355 { VIA_REV_8235, "VIA 8235", TYPE_VIA8233 },
2356 { VIA_REV_8237, "VIA 8237", TYPE_VIA8233 },
2357 { VIA_REV_8251, "VIA 8251", TYPE_VIA8233 },
2358 };
2359
2360 /*
2361 * auto detection of DXS channel supports.
2362 */
2363
2364 static struct snd_pci_quirk dxs_whitelist[] __devinitdata = {
2365 SND_PCI_QUIRK(0x1005, 0x4710, "Avance Logic Mobo", VIA_DXS_ENABLE),
2366 SND_PCI_QUIRK(0x1019, 0x0996, "ESC Mobo", VIA_DXS_48K),
2367 SND_PCI_QUIRK(0x1019, 0x0a81, "ECS K7VTA3 v8.0", VIA_DXS_NO_VRA),
2368 SND_PCI_QUIRK(0x1019, 0x0a85, "ECS L7VMM2", VIA_DXS_NO_VRA),
2369 SND_PCI_QUIRK(0x1019, 0, "ESC K8", VIA_DXS_SRC),
2370 SND_PCI_QUIRK(0x1019, 0xaa01, "ESC K8T890-A", VIA_DXS_SRC),
2371 SND_PCI_QUIRK(0x1025, 0x0033, "Acer Inspire 1353LM", VIA_DXS_NO_VRA),
2372 SND_PCI_QUIRK(0x1025, 0x0046, "Acer Aspire 1524 WLMi", VIA_DXS_SRC),
2373 SND_PCI_QUIRK(0x1043, 0, "ASUS A7/A8", VIA_DXS_NO_VRA),
2374 SND_PCI_QUIRK(0x1071, 0, "Diverse Notebook", VIA_DXS_NO_VRA),
2375 SND_PCI_QUIRK(0x10cf, 0x118e, "FSC Laptop", VIA_DXS_ENABLE),
2376 SND_PCI_QUIRK(0x1106, 0, "ASRock", VIA_DXS_SRC),
2377 SND_PCI_QUIRK(0x1297, 0xa231, "Shuttle AK31v2", VIA_DXS_SRC),
2378 SND_PCI_QUIRK(0x1297, 0xa232, "Shuttle", VIA_DXS_SRC),
2379 SND_PCI_QUIRK(0x1297, 0xc160, "Shuttle Sk41G", VIA_DXS_SRC),
2380 SND_PCI_QUIRK(0x1458, 0xa002, "Gigabyte GA-7VAXP", VIA_DXS_ENABLE),
2381 SND_PCI_QUIRK(0x1462, 0x3800, "MSI KT266", VIA_DXS_ENABLE),
2382 SND_PCI_QUIRK(0x1462, 0x7120, "MSI KT4V", VIA_DXS_ENABLE),
2383 SND_PCI_QUIRK(0x1462, 0x7142, "MSI K8MM-V", VIA_DXS_ENABLE),
2384 SND_PCI_QUIRK(0x1462, 0, "MSI Mobo", VIA_DXS_SRC),
2385 SND_PCI_QUIRK(0x147b, 0x1401, "ABIT KD7(-RAID)", VIA_DXS_ENABLE),
2386 SND_PCI_QUIRK(0x147b, 0x1411, "ABIT VA-20", VIA_DXS_ENABLE),
2387 SND_PCI_QUIRK(0x147b, 0x1413, "ABIT KV8 Pro", VIA_DXS_ENABLE),
2388 SND_PCI_QUIRK(0x147b, 0x1415, "ABIT AV8", VIA_DXS_NO_VRA),
2389 SND_PCI_QUIRK(0x14ff, 0x0403, "Twinhead mobo", VIA_DXS_ENABLE),
2390 SND_PCI_QUIRK(0x14ff, 0x0408, "Twinhead laptop", VIA_DXS_SRC),
2391 SND_PCI_QUIRK(0x1558, 0x4701, "Clevo D470", VIA_DXS_SRC),
2392 SND_PCI_QUIRK(0x1584, 0x8120, "Diverse Laptop", VIA_DXS_ENABLE),
2393 SND_PCI_QUIRK(0x1584, 0x8123, "Targa/Uniwill", VIA_DXS_NO_VRA),
2394 SND_PCI_QUIRK(0x161f, 0x202b, "Amira Notebook", VIA_DXS_NO_VRA),
2395 SND_PCI_QUIRK(0x161f, 0x2032, "m680x machines", VIA_DXS_48K),
2396 SND_PCI_QUIRK(0x1631, 0xe004, "PB EasyNote 3174", VIA_DXS_ENABLE),
2397 SND_PCI_QUIRK(0x1695, 0x3005, "EPoX EP-8K9A", VIA_DXS_ENABLE),
2398 SND_PCI_QUIRK(0x1695, 0, "EPoX mobo", VIA_DXS_SRC),
2399 SND_PCI_QUIRK(0x16f3, 0, "Jetway K8", VIA_DXS_SRC),
2400 SND_PCI_QUIRK(0x1734, 0, "FSC Laptop", VIA_DXS_SRC),
2401 SND_PCI_QUIRK(0x1849, 0x3059, "ASRock K7VM2", VIA_DXS_NO_VRA),
2402 SND_PCI_QUIRK(0x1849, 0, "ASRock mobo", VIA_DXS_SRC),
2403 SND_PCI_QUIRK(0x1919, 0x200a, "Soltek SL-K8", VIA_DXS_NO_VRA),
2404 SND_PCI_QUIRK(0x4005, 0x4710, "MSI K7T266", VIA_DXS_SRC),
2405 { } /* terminator */
2406 };
2407
2408 static int __devinit check_dxs_list(struct pci_dev *pci, int revision)
2409 {
2410 const struct snd_pci_quirk *w;
2411
2412 w = snd_pci_quirk_lookup(pci, dxs_whitelist);
2413 if (w) {
2414 snd_printdd(KERN_INFO "via82xx: DXS white list for %s found\n",
2415 w->name);
2416 return w->value;
2417 }
2418
2419 /* for newer revision, default to DXS_SRC */
2420 if (revision >= VIA_REV_8235)
2421 return VIA_DXS_SRC;
2422
2423 /*
2424 * not detected, try 48k rate only to be sure.
2425 */
2426 printk(KERN_INFO "via82xx: Assuming DXS channels with 48k fixed sample rate.\n");
2427 printk(KERN_INFO " Please try dxs_support=5 option\n");
2428 printk(KERN_INFO " and report if it works on your machine.\n");
2429 printk(KERN_INFO " For more details, read ALSA-Configuration.txt.\n");
2430 return VIA_DXS_48K;
2431 };
2432
2433 static int __devinit snd_via82xx_probe(struct pci_dev *pci,
2434 const struct pci_device_id *pci_id)
2435 {
2436 struct snd_card *card;
2437 struct via82xx *chip;
2438 int chip_type = 0, card_type;
2439 unsigned int i;
2440 int err;
2441
2442 card = snd_card_new(index, id, THIS_MODULE, 0);
2443 if (card == NULL)
2444 return -ENOMEM;
2445
2446 card_type = pci_id->driver_data;
2447 switch (card_type) {
2448 case TYPE_CARD_VIA686:
2449 strcpy(card->driver, "VIA686A");
2450 sprintf(card->shortname, "VIA 82C686A/B rev%x", pci->revision);
2451 chip_type = TYPE_VIA686;
2452 break;
2453 case TYPE_CARD_VIA8233:
2454 chip_type = TYPE_VIA8233;
2455 sprintf(card->shortname, "VIA 823x rev%x", pci->revision);
2456 for (i = 0; i < ARRAY_SIZE(via823x_cards); i++) {
2457 if (pci->revision == via823x_cards[i].revision) {
2458 chip_type = via823x_cards[i].type;
2459 strcpy(card->shortname, via823x_cards[i].name);
2460 break;
2461 }
2462 }
2463 if (chip_type != TYPE_VIA8233A) {
2464 if (dxs_support == VIA_DXS_AUTO)
2465 dxs_support = check_dxs_list(pci, pci->revision);
2466 /* force to use VIA8233 or 8233A model according to
2467 * dxs_support module option
2468 */
2469 if (dxs_support == VIA_DXS_DISABLE)
2470 chip_type = TYPE_VIA8233A;
2471 else
2472 chip_type = TYPE_VIA8233;
2473 }
2474 if (chip_type == TYPE_VIA8233A)
2475 strcpy(card->driver, "VIA8233A");
2476 else if (pci->revision >= VIA_REV_8237)
2477 strcpy(card->driver, "VIA8237"); /* no slog assignment */
2478 else
2479 strcpy(card->driver, "VIA8233");
2480 break;
2481 default:
2482 snd_printk(KERN_ERR "invalid card type %d\n", card_type);
2483 err = -EINVAL;
2484 goto __error;
2485 }
2486
2487 if ((err = snd_via82xx_create(card, pci, chip_type, pci->revision,
2488 ac97_clock, &chip)) < 0)
2489 goto __error;
2490 card->private_data = chip;
2491 if ((err = snd_via82xx_mixer_new(chip, ac97_quirk)) < 0)
2492 goto __error;
2493
2494 if (chip_type == TYPE_VIA686) {
2495 if ((err = snd_via686_pcm_new(chip)) < 0 ||
2496 (err = snd_via686_init_misc(chip)) < 0)
2497 goto __error;
2498 } else {
2499 if (chip_type == TYPE_VIA8233A) {
2500 if ((err = snd_via8233a_pcm_new(chip)) < 0)
2501 goto __error;
2502 // chip->dxs_fixed = 1; /* FIXME: use 48k for DXS #3? */
2503 } else {
2504 if ((err = snd_via8233_pcm_new(chip)) < 0)
2505 goto __error;
2506 if (dxs_support == VIA_DXS_48K)
2507 chip->dxs_fixed = 1;
2508 else if (dxs_support == VIA_DXS_NO_VRA)
2509 chip->no_vra = 1;
2510 else if (dxs_support == VIA_DXS_SRC) {
2511 chip->no_vra = 1;
2512 chip->dxs_src = 1;
2513 }
2514 }
2515 if ((err = snd_via8233_init_misc(chip)) < 0)
2516 goto __error;
2517 }
2518
2519 /* disable interrupts */
2520 for (i = 0; i < chip->num_devs; i++)
2521 snd_via82xx_channel_reset(chip, &chip->devs[i]);
2522
2523 snprintf(card->longname, sizeof(card->longname),
2524 "%s with %s at %#lx, irq %d", card->shortname,
2525 snd_ac97_get_short_name(chip->ac97), chip->port, chip->irq);
2526
2527 snd_via82xx_proc_init(chip);
2528
2529 if ((err = snd_card_register(card)) < 0) {
2530 snd_card_free(card);
2531 return err;
2532 }
2533 pci_set_drvdata(pci, card);
2534 return 0;
2535
2536 __error:
2537 snd_card_free(card);
2538 return err;
2539 }
2540
2541 static void __devexit snd_via82xx_remove(struct pci_dev *pci)
2542 {
2543 snd_card_free(pci_get_drvdata(pci));
2544 pci_set_drvdata(pci, NULL);
2545 }
2546
2547 static struct pci_driver driver = {
2548 .name = "VIA 82xx Audio",
2549 .id_table = snd_via82xx_ids,
2550 .probe = snd_via82xx_probe,
2551 .remove = __devexit_p(snd_via82xx_remove),
2552 #ifdef CONFIG_PM
2553 .suspend = snd_via82xx_suspend,
2554 .resume = snd_via82xx_resume,
2555 #endif
2556 };
2557
2558 static int __init alsa_card_via82xx_init(void)
2559 {
2560 return pci_register_driver(&driver);
2561 }
2562
2563 static void __exit alsa_card_via82xx_exit(void)
2564 {
2565 pci_unregister_driver(&driver);
2566 }
2567
2568 module_init(alsa_card_via82xx_init)
2569 module_exit(alsa_card_via82xx_exit)
Support for the Chinese Samsung S3C2440 based development boards