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Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus
[linux-2.6/mini2440.git] / sound / pci / via82xx.c
blobacfa4760da49e3afb147b438897fbdb03b547239
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 static int nodelay;
89
90 module_param(index, int, 0444);
91 MODULE_PARM_DESC(index, "Index value for VIA 82xx bridge.");
92 module_param(id, charp, 0444);
93 MODULE_PARM_DESC(id, "ID string for VIA 82xx bridge.");
94 module_param(mpu_port, long, 0444);
95 MODULE_PARM_DESC(mpu_port, "MPU-401 port. (VT82C686x only)");
96 #ifdef SUPPORT_JOYSTICK
97 module_param(joystick, bool, 0444);
98 MODULE_PARM_DESC(joystick, "Enable joystick. (VT82C686x only)");
99 #endif
100 module_param(ac97_clock, int, 0444);
101 MODULE_PARM_DESC(ac97_clock, "AC'97 codec clock (default 48000Hz).");
102 module_param(ac97_quirk, charp, 0444);
103 MODULE_PARM_DESC(ac97_quirk, "AC'97 workaround for strange hardware.");
104 module_param(dxs_support, int, 0444);
105 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)");
106 module_param(nodelay, int, 0444);
107 MODULE_PARM_DESC(nodelay, "Disable 500ms init delay");
108
109 /* just for backward compatibility */
110 static int enable;
111 module_param(enable, bool, 0444);
112
113
114 /* revision numbers for via686 */
115 #define VIA_REV_686_A 0x10
116 #define VIA_REV_686_B 0x11
117 #define VIA_REV_686_C 0x12
118 #define VIA_REV_686_D 0x13
119 #define VIA_REV_686_E 0x14
120 #define VIA_REV_686_H 0x20
121
122 /* revision numbers for via8233 */
123 #define VIA_REV_PRE_8233 0x10 /* not in market */
124 #define VIA_REV_8233C 0x20 /* 2 rec, 4 pb, 1 multi-pb */
125 #define VIA_REV_8233 0x30 /* 2 rec, 4 pb, 1 multi-pb, spdif */
126 #define VIA_REV_8233A 0x40 /* 1 rec, 1 multi-pb, spdf */
127 #define VIA_REV_8235 0x50 /* 2 rec, 4 pb, 1 multi-pb, spdif */
128 #define VIA_REV_8237 0x60
129 #define VIA_REV_8251 0x70
130
131 /*
132 * Direct registers
133 */
134
135 #define VIAREG(via, x) ((via)->port + VIA_REG_##x)
136 #define VIADEV_REG(viadev, x) ((viadev)->port + VIA_REG_##x)
137
138 /* common offsets */
139 #define VIA_REG_OFFSET_STATUS 0x00 /* byte - channel status */
140 #define VIA_REG_STAT_ACTIVE 0x80 /* RO */
141 #define VIA8233_SHADOW_STAT_ACTIVE 0x08 /* RO */
142 #define VIA_REG_STAT_PAUSED 0x40 /* RO */
143 #define VIA_REG_STAT_TRIGGER_QUEUED 0x08 /* RO */
144 #define VIA_REG_STAT_STOPPED 0x04 /* RWC */
145 #define VIA_REG_STAT_EOL 0x02 /* RWC */
146 #define VIA_REG_STAT_FLAG 0x01 /* RWC */
147 #define VIA_REG_OFFSET_CONTROL 0x01 /* byte - channel control */
148 #define VIA_REG_CTRL_START 0x80 /* WO */
149 #define VIA_REG_CTRL_TERMINATE 0x40 /* WO */
150 #define VIA_REG_CTRL_AUTOSTART 0x20
151 #define VIA_REG_CTRL_PAUSE 0x08 /* RW */
152 #define VIA_REG_CTRL_INT_STOP 0x04
153 #define VIA_REG_CTRL_INT_EOL 0x02
154 #define VIA_REG_CTRL_INT_FLAG 0x01
155 #define VIA_REG_CTRL_RESET 0x01 /* RW - probably reset? undocumented */
156 #define VIA_REG_CTRL_INT (VIA_REG_CTRL_INT_FLAG | VIA_REG_CTRL_INT_EOL | VIA_REG_CTRL_AUTOSTART)
157 #define VIA_REG_OFFSET_TYPE 0x02 /* byte - channel type (686 only) */
158 #define VIA_REG_TYPE_AUTOSTART 0x80 /* RW - autostart at EOL */
159 #define VIA_REG_TYPE_16BIT 0x20 /* RW */
160 #define VIA_REG_TYPE_STEREO 0x10 /* RW */
161 #define VIA_REG_TYPE_INT_LLINE 0x00
162 #define VIA_REG_TYPE_INT_LSAMPLE 0x04
163 #define VIA_REG_TYPE_INT_LESSONE 0x08
164 #define VIA_REG_TYPE_INT_MASK 0x0c
165 #define VIA_REG_TYPE_INT_EOL 0x02
166 #define VIA_REG_TYPE_INT_FLAG 0x01
167 #define VIA_REG_OFFSET_TABLE_PTR 0x04 /* dword - channel table pointer */
168 #define VIA_REG_OFFSET_CURR_PTR 0x04 /* dword - channel current pointer */
169 #define VIA_REG_OFFSET_STOP_IDX 0x08 /* dword - stop index, channel type, sample rate */
170 #define VIA8233_REG_TYPE_16BIT 0x00200000 /* RW */
171 #define VIA8233_REG_TYPE_STEREO 0x00100000 /* RW */
172 #define VIA_REG_OFFSET_CURR_COUNT 0x0c /* dword - channel current count (24 bit) */
173 #define VIA_REG_OFFSET_CURR_INDEX 0x0f /* byte - channel current index (for via8233 only) */
174
175 #define DEFINE_VIA_REGSET(name,val) \
176 enum {\
177 VIA_REG_##name##_STATUS = (val),\
178 VIA_REG_##name##_CONTROL = (val) + 0x01,\
179 VIA_REG_##name##_TYPE = (val) + 0x02,\
180 VIA_REG_##name##_TABLE_PTR = (val) + 0x04,\
181 VIA_REG_##name##_CURR_PTR = (val) + 0x04,\
182 VIA_REG_##name##_STOP_IDX = (val) + 0x08,\
183 VIA_REG_##name##_CURR_COUNT = (val) + 0x0c,\
184 }
185
186 /* playback block */
187 DEFINE_VIA_REGSET(PLAYBACK, 0x00);
188 DEFINE_VIA_REGSET(CAPTURE, 0x10);
189 DEFINE_VIA_REGSET(FM, 0x20);
190
191 /* AC'97 */
192 #define VIA_REG_AC97 0x80 /* dword */
193 #define VIA_REG_AC97_CODEC_ID_MASK (3<<30)
194 #define VIA_REG_AC97_CODEC_ID_SHIFT 30
195 #define VIA_REG_AC97_CODEC_ID_PRIMARY 0x00
196 #define VIA_REG_AC97_CODEC_ID_SECONDARY 0x01
197 #define VIA_REG_AC97_SECONDARY_VALID (1<<27)
198 #define VIA_REG_AC97_PRIMARY_VALID (1<<25)
199 #define VIA_REG_AC97_BUSY (1<<24)
200 #define VIA_REG_AC97_READ (1<<23)
201 #define VIA_REG_AC97_CMD_SHIFT 16
202 #define VIA_REG_AC97_CMD_MASK 0x7e
203 #define VIA_REG_AC97_DATA_SHIFT 0
204 #define VIA_REG_AC97_DATA_MASK 0xffff
205
206 #define VIA_REG_SGD_SHADOW 0x84 /* dword */
207 /* via686 */
208 #define VIA_REG_SGD_STAT_PB_FLAG (1<<0)
209 #define VIA_REG_SGD_STAT_CP_FLAG (1<<1)
210 #define VIA_REG_SGD_STAT_FM_FLAG (1<<2)
211 #define VIA_REG_SGD_STAT_PB_EOL (1<<4)
212 #define VIA_REG_SGD_STAT_CP_EOL (1<<5)
213 #define VIA_REG_SGD_STAT_FM_EOL (1<<6)
214 #define VIA_REG_SGD_STAT_PB_STOP (1<<8)
215 #define VIA_REG_SGD_STAT_CP_STOP (1<<9)
216 #define VIA_REG_SGD_STAT_FM_STOP (1<<10)
217 #define VIA_REG_SGD_STAT_PB_ACTIVE (1<<12)
218 #define VIA_REG_SGD_STAT_CP_ACTIVE (1<<13)
219 #define VIA_REG_SGD_STAT_FM_ACTIVE (1<<14)
220 /* via8233 */
221 #define VIA8233_REG_SGD_STAT_FLAG (1<<0)
222 #define VIA8233_REG_SGD_STAT_EOL (1<<1)
223 #define VIA8233_REG_SGD_STAT_STOP (1<<2)
224 #define VIA8233_REG_SGD_STAT_ACTIVE (1<<3)
225 #define VIA8233_INTR_MASK(chan) ((VIA8233_REG_SGD_STAT_FLAG|VIA8233_REG_SGD_STAT_EOL) << ((chan) * 4))
226 #define VIA8233_REG_SGD_CHAN_SDX 0
227 #define VIA8233_REG_SGD_CHAN_MULTI 4
228 #define VIA8233_REG_SGD_CHAN_REC 6
229 #define VIA8233_REG_SGD_CHAN_REC1 7
230
231 #define VIA_REG_GPI_STATUS 0x88
232 #define VIA_REG_GPI_INTR 0x8c
233
234 /* multi-channel and capture registers for via8233 */
235 DEFINE_VIA_REGSET(MULTPLAY, 0x40);
236 DEFINE_VIA_REGSET(CAPTURE_8233, 0x60);
237
238 /* via8233-specific registers */
239 #define VIA_REG_OFS_PLAYBACK_VOLUME_L 0x02 /* byte */
240 #define VIA_REG_OFS_PLAYBACK_VOLUME_R 0x03 /* byte */
241 #define VIA_REG_OFS_MULTPLAY_FORMAT 0x02 /* byte - format and channels */
242 #define VIA_REG_MULTPLAY_FMT_8BIT 0x00
243 #define VIA_REG_MULTPLAY_FMT_16BIT 0x80
244 #define VIA_REG_MULTPLAY_FMT_CH_MASK 0x70 /* # channels << 4 (valid = 1,2,4,6) */
245 #define VIA_REG_OFS_CAPTURE_FIFO 0x02 /* byte - bit 6 = fifo enable */
246 #define VIA_REG_CAPTURE_FIFO_ENABLE 0x40
247
248 #define VIA_DXS_MAX_VOLUME 31 /* max. volume (attenuation) of reg 0x32/33 */
249
250 #define VIA_REG_CAPTURE_CHANNEL 0x63 /* byte - input select */
251 #define VIA_REG_CAPTURE_CHANNEL_MIC 0x4
252 #define VIA_REG_CAPTURE_CHANNEL_LINE 0
253 #define VIA_REG_CAPTURE_SELECT_CODEC 0x03 /* recording source codec (0 = primary) */
254
255 #define VIA_TBL_BIT_FLAG 0x40000000
256 #define VIA_TBL_BIT_EOL 0x80000000
257
258 /* pci space */
259 #define VIA_ACLINK_STAT 0x40
260 #define VIA_ACLINK_C11_READY 0x20
261 #define VIA_ACLINK_C10_READY 0x10
262 #define VIA_ACLINK_C01_READY 0x04 /* secondary codec ready */
263 #define VIA_ACLINK_LOWPOWER 0x02 /* low-power state */
264 #define VIA_ACLINK_C00_READY 0x01 /* primary codec ready */
265 #define VIA_ACLINK_CTRL 0x41
266 #define VIA_ACLINK_CTRL_ENABLE 0x80 /* 0: disable, 1: enable */
267 #define VIA_ACLINK_CTRL_RESET 0x40 /* 0: assert, 1: de-assert */
268 #define VIA_ACLINK_CTRL_SYNC 0x20 /* 0: release SYNC, 1: force SYNC hi */
269 #define VIA_ACLINK_CTRL_SDO 0x10 /* 0: release SDO, 1: force SDO hi */
270 #define VIA_ACLINK_CTRL_VRA 0x08 /* 0: disable VRA, 1: enable VRA */
271 #define VIA_ACLINK_CTRL_PCM 0x04 /* 0: disable PCM, 1: enable PCM */
272 #define VIA_ACLINK_CTRL_FM 0x02 /* via686 only */
273 #define VIA_ACLINK_CTRL_SB 0x01 /* via686 only */
274 #define VIA_ACLINK_CTRL_INIT (VIA_ACLINK_CTRL_ENABLE|\
275 VIA_ACLINK_CTRL_RESET|\
276 VIA_ACLINK_CTRL_PCM|\
277 VIA_ACLINK_CTRL_VRA)
278 #define VIA_FUNC_ENABLE 0x42
279 #define VIA_FUNC_MIDI_PNP 0x80 /* FIXME: it's 0x40 in the datasheet! */
280 #define VIA_FUNC_MIDI_IRQMASK 0x40 /* FIXME: not documented! */
281 #define VIA_FUNC_RX2C_WRITE 0x20
282 #define VIA_FUNC_SB_FIFO_EMPTY 0x10
283 #define VIA_FUNC_ENABLE_GAME 0x08
284 #define VIA_FUNC_ENABLE_FM 0x04
285 #define VIA_FUNC_ENABLE_MIDI 0x02
286 #define VIA_FUNC_ENABLE_SB 0x01
287 #define VIA_PNP_CONTROL 0x43
288 #define VIA_FM_NMI_CTRL 0x48
289 #define VIA8233_VOLCHG_CTRL 0x48
290 #define VIA8233_SPDIF_CTRL 0x49
291 #define VIA8233_SPDIF_DX3 0x08
292 #define VIA8233_SPDIF_SLOT_MASK 0x03
293 #define VIA8233_SPDIF_SLOT_1011 0x00
294 #define VIA8233_SPDIF_SLOT_34 0x01
295 #define VIA8233_SPDIF_SLOT_78 0x02
296 #define VIA8233_SPDIF_SLOT_69 0x03
297
298 /*
299 */
300
301 #define VIA_DXS_AUTO 0
302 #define VIA_DXS_ENABLE 1
303 #define VIA_DXS_DISABLE 2
304 #define VIA_DXS_48K 3
305 #define VIA_DXS_NO_VRA 4
306 #define VIA_DXS_SRC 5
307
308
309 /*
310 * pcm stream
311 */
312
313 struct snd_via_sg_table {
314 unsigned int offset;
315 unsigned int size;
316 } ;
317
318 #define VIA_TABLE_SIZE 255
319 #define VIA_MAX_BUFSIZE (1<<24)
320
321 struct viadev {
322 unsigned int reg_offset;
323 unsigned long port;
324 int direction; /* playback = 0, capture = 1 */
325 struct snd_pcm_substream *substream;
326 int running;
327 unsigned int tbl_entries; /* # descriptors */
328 struct snd_dma_buffer table;
329 struct snd_via_sg_table *idx_table;
330 /* for recovery from the unexpected pointer */
331 unsigned int lastpos;
332 unsigned int fragsize;
333 unsigned int bufsize;
334 unsigned int bufsize2;
335 int hwptr_done; /* processed frame position in the buffer */
336 int in_interrupt;
337 int shadow_shift;
338 };
339
340
341 enum { TYPE_CARD_VIA686 = 1, TYPE_CARD_VIA8233 };
342 enum { TYPE_VIA686, TYPE_VIA8233, TYPE_VIA8233A };
343
344 #define VIA_MAX_DEVS 7 /* 4 playback, 1 multi, 2 capture */
345
346 struct via_rate_lock {
347 spinlock_t lock;
348 int rate;
349 int used;
350 };
351
352 struct via82xx {
353 int irq;
354
355 unsigned long port;
356 struct resource *mpu_res;
357 int chip_type;
358 unsigned char revision;
359
360 unsigned char old_legacy;
361 unsigned char old_legacy_cfg;
362 #ifdef CONFIG_PM
363 unsigned char legacy_saved;
364 unsigned char legacy_cfg_saved;
365 unsigned char spdif_ctrl_saved;
366 unsigned char capture_src_saved[2];
367 unsigned int mpu_port_saved;
368 #endif
369
370 unsigned char playback_volume[4][2]; /* for VIA8233/C/8235; default = 0 */
371 unsigned char playback_volume_c[2]; /* for VIA8233/C/8235; default = 0 */
372
373 unsigned int intr_mask; /* SGD_SHADOW mask to check interrupts */
374
375 struct pci_dev *pci;
376 struct snd_card *card;
377
378 unsigned int num_devs;
379 unsigned int playback_devno, multi_devno, capture_devno;
380 struct viadev devs[VIA_MAX_DEVS];
381 struct via_rate_lock rates[2]; /* playback and capture */
382 unsigned int dxs_fixed: 1; /* DXS channel accepts only 48kHz */
383 unsigned int no_vra: 1; /* no need to set VRA on DXS channels */
384 unsigned int dxs_src: 1; /* use full SRC capabilities of DXS */
385 unsigned int spdif_on: 1; /* only spdif rates work to external DACs */
386
387 struct snd_pcm *pcms[2];
388 struct snd_rawmidi *rmidi;
389
390 struct snd_ac97_bus *ac97_bus;
391 struct snd_ac97 *ac97;
392 unsigned int ac97_clock;
393 unsigned int ac97_secondary; /* secondary AC'97 codec is present */
394
395 spinlock_t reg_lock;
396 struct snd_info_entry *proc_entry;
397
398 #ifdef SUPPORT_JOYSTICK
399 struct gameport *gameport;
400 #endif
401 };
402
403 static struct pci_device_id snd_via82xx_ids[] = {
404 /* 0x1106, 0x3058 */
405 { PCI_VDEVICE(VIA, PCI_DEVICE_ID_VIA_82C686_5), TYPE_CARD_VIA686, }, /* 686A */
406 /* 0x1106, 0x3059 */
407 { PCI_VDEVICE(VIA, PCI_DEVICE_ID_VIA_8233_5), TYPE_CARD_VIA8233, }, /* VT8233 */
408 { 0, }
409 };
410
411 MODULE_DEVICE_TABLE(pci, snd_via82xx_ids);
412
413 /*
414 */
415
416 /*
417 * allocate and initialize the descriptor buffers
418 * periods = number of periods
419 * fragsize = period size in bytes
420 */
421 static int build_via_table(struct viadev *dev, struct snd_pcm_substream *substream,
422 struct pci_dev *pci,
423 unsigned int periods, unsigned int fragsize)
424 {
425 unsigned int i, idx, ofs, rest;
426 struct via82xx *chip = snd_pcm_substream_chip(substream);
427
428 if (dev->table.area == NULL) {
429 /* the start of each lists must be aligned to 8 bytes,
430 * but the kernel pages are much bigger, so we don't care
431 */
432 if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(chip->pci),
433 PAGE_ALIGN(VIA_TABLE_SIZE * 2 * 8),
434 &dev->table) < 0)
435 return -ENOMEM;
436 }
437 if (! dev->idx_table) {
438 dev->idx_table = kmalloc(sizeof(*dev->idx_table) * VIA_TABLE_SIZE, GFP_KERNEL);
439 if (! dev->idx_table)
440 return -ENOMEM;
441 }
442
443 /* fill the entries */
444 idx = 0;
445 ofs = 0;
446 for (i = 0; i < periods; i++) {
447 rest = fragsize;
448 /* fill descriptors for a period.
449 * a period can be split to several descriptors if it's
450 * over page boundary.
451 */
452 do {
453 unsigned int r;
454 unsigned int flag;
455 unsigned int addr;
456
457 if (idx >= VIA_TABLE_SIZE) {
458 snd_printk(KERN_ERR "via82xx: too much table size!\n");
459 return -EINVAL;
460 }
461 addr = snd_pcm_sgbuf_get_addr(substream, ofs);
462 ((u32 *)dev->table.area)[idx << 1] = cpu_to_le32(addr);
463 r = snd_pcm_sgbuf_get_chunk_size(substream, ofs, rest);
464 rest -= r;
465 if (! rest) {
466 if (i == periods - 1)
467 flag = VIA_TBL_BIT_EOL; /* buffer boundary */
468 else
469 flag = VIA_TBL_BIT_FLAG; /* period boundary */
470 } else
471 flag = 0; /* period continues to the next */
472 /*
473 printk(KERN_DEBUG "via: tbl %d: at %d size %d "
474 "(rest %d)\n", idx, ofs, r, rest);
475 */
476 ((u32 *)dev->table.area)[(idx<<1) + 1] = cpu_to_le32(r | flag);
477 dev->idx_table[idx].offset = ofs;
478 dev->idx_table[idx].size = r;
479 ofs += r;
480 idx++;
481 } while (rest > 0);
482 }
483 dev->tbl_entries = idx;
484 dev->bufsize = periods * fragsize;
485 dev->bufsize2 = dev->bufsize / 2;
486 dev->fragsize = fragsize;
487 return 0;
488 }
489
490
491 static int clean_via_table(struct viadev *dev, struct snd_pcm_substream *substream,
492 struct pci_dev *pci)
493 {
494 if (dev->table.area) {
495 snd_dma_free_pages(&dev->table);
496 dev->table.area = NULL;
497 }
498 kfree(dev->idx_table);
499 dev->idx_table = NULL;
500 return 0;
501 }
502
503 /*
504 * Basic I/O
505 */
506
507 static inline unsigned int snd_via82xx_codec_xread(struct via82xx *chip)
508 {
509 return inl(VIAREG(chip, AC97));
510 }
511
512 static inline void snd_via82xx_codec_xwrite(struct via82xx *chip, unsigned int val)
513 {
514 outl(val, VIAREG(chip, AC97));
515 }
516
517 static int snd_via82xx_codec_ready(struct via82xx *chip, int secondary)
518 {
519 unsigned int timeout = 1000; /* 1ms */
520 unsigned int val;
521
522 while (timeout-- > 0) {
523 udelay(1);
524 if (!((val = snd_via82xx_codec_xread(chip)) & VIA_REG_AC97_BUSY))
525 return val & 0xffff;
526 }
527 snd_printk(KERN_ERR "codec_ready: codec %i is not ready [0x%x]\n",
528 secondary, snd_via82xx_codec_xread(chip));
529 return -EIO;
530 }
531
532 static int snd_via82xx_codec_valid(struct via82xx *chip, int secondary)
533 {
534 unsigned int timeout = 1000; /* 1ms */
535 unsigned int val, val1;
536 unsigned int stat = !secondary ? VIA_REG_AC97_PRIMARY_VALID :
537 VIA_REG_AC97_SECONDARY_VALID;
538
539 while (timeout-- > 0) {
540 val = snd_via82xx_codec_xread(chip);
541 val1 = val & (VIA_REG_AC97_BUSY | stat);
542 if (val1 == stat)
543 return val & 0xffff;
544 udelay(1);
545 }
546 return -EIO;
547 }
548
549 static void snd_via82xx_codec_wait(struct snd_ac97 *ac97)
550 {
551 struct via82xx *chip = ac97->private_data;
552 int err;
553 err = snd_via82xx_codec_ready(chip, ac97->num);
554 /* here we need to wait fairly for long time.. */
555 if (!nodelay)
556 msleep(500);
557 }
558
559 static void snd_via82xx_codec_write(struct snd_ac97 *ac97,
560 unsigned short reg,
561 unsigned short val)
562 {
563 struct via82xx *chip = ac97->private_data;
564 unsigned int xval;
565
566 xval = !ac97->num ? VIA_REG_AC97_CODEC_ID_PRIMARY : VIA_REG_AC97_CODEC_ID_SECONDARY;
567 xval <<= VIA_REG_AC97_CODEC_ID_SHIFT;
568 xval |= reg << VIA_REG_AC97_CMD_SHIFT;
569 xval |= val << VIA_REG_AC97_DATA_SHIFT;
570 snd_via82xx_codec_xwrite(chip, xval);
571 snd_via82xx_codec_ready(chip, ac97->num);
572 }
573
574 static unsigned short snd_via82xx_codec_read(struct snd_ac97 *ac97, unsigned short reg)
575 {
576 struct via82xx *chip = ac97->private_data;
577 unsigned int xval, val = 0xffff;
578 int again = 0;
579
580 xval = ac97->num << VIA_REG_AC97_CODEC_ID_SHIFT;
581 xval |= ac97->num ? VIA_REG_AC97_SECONDARY_VALID : VIA_REG_AC97_PRIMARY_VALID;
582 xval |= VIA_REG_AC97_READ;
583 xval |= (reg & 0x7f) << VIA_REG_AC97_CMD_SHIFT;
584 while (1) {
585 if (again++ > 3) {
586 snd_printk(KERN_ERR "codec_read: codec %i is not valid [0x%x]\n",
587 ac97->num, snd_via82xx_codec_xread(chip));
588 return 0xffff;
589 }
590 snd_via82xx_codec_xwrite(chip, xval);
591 udelay (20);
592 if (snd_via82xx_codec_valid(chip, ac97->num) >= 0) {
593 udelay(25);
594 val = snd_via82xx_codec_xread(chip);
595 break;
596 }
597 }
598 return val & 0xffff;
599 }
600
601 static void snd_via82xx_channel_reset(struct via82xx *chip, struct viadev *viadev)
602 {
603 outb(VIA_REG_CTRL_PAUSE | VIA_REG_CTRL_TERMINATE | VIA_REG_CTRL_RESET,
604 VIADEV_REG(viadev, OFFSET_CONTROL));
605 inb(VIADEV_REG(viadev, OFFSET_CONTROL));
606 udelay(50);
607 /* disable interrupts */
608 outb(0x00, VIADEV_REG(viadev, OFFSET_CONTROL));
609 /* clear interrupts */
610 outb(0x03, VIADEV_REG(viadev, OFFSET_STATUS));
611 outb(0x00, VIADEV_REG(viadev, OFFSET_TYPE)); /* for via686 */
612 // outl(0, VIADEV_REG(viadev, OFFSET_CURR_PTR));
613 viadev->lastpos = 0;
614 viadev->hwptr_done = 0;
615 }
616
617
618 /*
619 * Interrupt handler
620 * Used for 686 and 8233A
621 */
622 static irqreturn_t snd_via686_interrupt(int irq, void *dev_id)
623 {
624 struct via82xx *chip = dev_id;
625 unsigned int status;
626 unsigned int i;
627
628 status = inl(VIAREG(chip, SGD_SHADOW));
629 if (! (status & chip->intr_mask)) {
630 if (chip->rmidi)
631 /* check mpu401 interrupt */
632 return snd_mpu401_uart_interrupt(irq, chip->rmidi->private_data);
633 return IRQ_NONE;
634 }
635
636 /* check status for each stream */
637 spin_lock(&chip->reg_lock);
638 for (i = 0; i < chip->num_devs; i++) {
639 struct viadev *viadev = &chip->devs[i];
640 unsigned char c_status = inb(VIADEV_REG(viadev, OFFSET_STATUS));
641 if (! (c_status & (VIA_REG_STAT_EOL|VIA_REG_STAT_FLAG|VIA_REG_STAT_STOPPED)))
642 continue;
643 if (viadev->substream && viadev->running) {
644 /*
645 * Update hwptr_done based on 'period elapsed'
646 * interrupts. We'll use it, when the chip returns 0
647 * for OFFSET_CURR_COUNT.
648 */
649 if (c_status & VIA_REG_STAT_EOL)
650 viadev->hwptr_done = 0;
651 else
652 viadev->hwptr_done += viadev->fragsize;
653 viadev->in_interrupt = c_status;
654 spin_unlock(&chip->reg_lock);
655 snd_pcm_period_elapsed(viadev->substream);
656 spin_lock(&chip->reg_lock);
657 viadev->in_interrupt = 0;
658 }
659 outb(c_status, VIADEV_REG(viadev, OFFSET_STATUS)); /* ack */
660 }
661 spin_unlock(&chip->reg_lock);
662 return IRQ_HANDLED;
663 }
664
665 /*
666 * Interrupt handler
667 */
668 static irqreturn_t snd_via8233_interrupt(int irq, void *dev_id)
669 {
670 struct via82xx *chip = dev_id;
671 unsigned int status;
672 unsigned int i;
673 int irqreturn = 0;
674
675 /* check status for each stream */
676 spin_lock(&chip->reg_lock);
677 status = inl(VIAREG(chip, SGD_SHADOW));
678
679 for (i = 0; i < chip->num_devs; i++) {
680 struct viadev *viadev = &chip->devs[i];
681 struct snd_pcm_substream *substream;
682 unsigned char c_status, shadow_status;
683
684 shadow_status = (status >> viadev->shadow_shift) &
685 (VIA8233_SHADOW_STAT_ACTIVE|VIA_REG_STAT_EOL|
686 VIA_REG_STAT_FLAG);
687 c_status = shadow_status & (VIA_REG_STAT_EOL|VIA_REG_STAT_FLAG);
688 if (!c_status)
689 continue;
690
691 substream = viadev->substream;
692 if (substream && viadev->running) {
693 /*
694 * Update hwptr_done based on 'period elapsed'
695 * interrupts. We'll use it, when the chip returns 0
696 * for OFFSET_CURR_COUNT.
697 */
698 if (c_status & VIA_REG_STAT_EOL)
699 viadev->hwptr_done = 0;
700 else
701 viadev->hwptr_done += viadev->fragsize;
702 viadev->in_interrupt = c_status;
703 if (shadow_status & VIA8233_SHADOW_STAT_ACTIVE)
704 viadev->in_interrupt |= VIA_REG_STAT_ACTIVE;
705 spin_unlock(&chip->reg_lock);
706
707 snd_pcm_period_elapsed(substream);
708
709 spin_lock(&chip->reg_lock);
710 viadev->in_interrupt = 0;
711 }
712 outb(c_status, VIADEV_REG(viadev, OFFSET_STATUS)); /* ack */
713 irqreturn = 1;
714 }
715 spin_unlock(&chip->reg_lock);
716 return IRQ_RETVAL(irqreturn);
717 }
718
719 /*
720 * PCM callbacks
721 */
722
723 /*
724 * trigger callback
725 */
726 static int snd_via82xx_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
727 {
728 struct via82xx *chip = snd_pcm_substream_chip(substream);
729 struct viadev *viadev = substream->runtime->private_data;
730 unsigned char val;
731
732 if (chip->chip_type != TYPE_VIA686)
733 val = VIA_REG_CTRL_INT;
734 else
735 val = 0;
736 switch (cmd) {
737 case SNDRV_PCM_TRIGGER_START:
738 case SNDRV_PCM_TRIGGER_RESUME:
739 val |= VIA_REG_CTRL_START;
740 viadev->running = 1;
741 break;
742 case SNDRV_PCM_TRIGGER_STOP:
743 case SNDRV_PCM_TRIGGER_SUSPEND:
744 val = VIA_REG_CTRL_TERMINATE;
745 viadev->running = 0;
746 break;
747 case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
748 val |= VIA_REG_CTRL_PAUSE;
749 viadev->running = 0;
750 break;
751 case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
752 viadev->running = 1;
753 break;
754 default:
755 return -EINVAL;
756 }
757 outb(val, VIADEV_REG(viadev, OFFSET_CONTROL));
758 if (cmd == SNDRV_PCM_TRIGGER_STOP)
759 snd_via82xx_channel_reset(chip, viadev);
760 return 0;
761 }
762
763
764 /*
765 * pointer callbacks
766 */
767
768 /*
769 * calculate the linear position at the given sg-buffer index and the rest count
770 */
771
772 #define check_invalid_pos(viadev,pos) \
773 ((pos) < viadev->lastpos && ((pos) >= viadev->bufsize2 ||\
774 viadev->lastpos < viadev->bufsize2))
775
776 static inline unsigned int calc_linear_pos(struct viadev *viadev, unsigned int idx,
777 unsigned int count)
778 {
779 unsigned int size, base, res;
780
781 size = viadev->idx_table[idx].size;
782 base = viadev->idx_table[idx].offset;
783 res = base + size - count;
784 if (res >= viadev->bufsize)
785 res -= viadev->bufsize;
786
787 /* check the validity of the calculated position */
788 if (size < count) {
789 snd_printd(KERN_ERR "invalid via82xx_cur_ptr (size = %d, count = %d)\n",
790 (int)size, (int)count);
791 res = viadev->lastpos;
792 } else {
793 if (! count) {
794 /* Some mobos report count = 0 on the DMA boundary,
795 * i.e. count = size indeed.
796 * Let's check whether this step is above the expected size.
797 */
798 int delta = res - viadev->lastpos;
799 if (delta < 0)
800 delta += viadev->bufsize;
801 if ((unsigned int)delta > viadev->fragsize)
802 res = base;
803 }
804 if (check_invalid_pos(viadev, res)) {
805 #ifdef POINTER_DEBUG
806 printk(KERN_DEBUG "fail: idx = %i/%i, lastpos = 0x%x, "
807 "bufsize2 = 0x%x, offsize = 0x%x, size = 0x%x, "
808 "count = 0x%x\n", idx, viadev->tbl_entries,
809 viadev->lastpos, viadev->bufsize2,
810 viadev->idx_table[idx].offset,
811 viadev->idx_table[idx].size, count);
812 #endif
813 /* count register returns full size when end of buffer is reached */
814 res = base + size;
815 if (check_invalid_pos(viadev, res)) {
816 snd_printd(KERN_ERR "invalid via82xx_cur_ptr (2), "
817 "using last valid pointer\n");
818 res = viadev->lastpos;
819 }
820 }
821 }
822 return res;
823 }
824
825 /*
826 * get the current pointer on via686
827 */
828 static snd_pcm_uframes_t snd_via686_pcm_pointer(struct snd_pcm_substream *substream)
829 {
830 struct via82xx *chip = snd_pcm_substream_chip(substream);
831 struct viadev *viadev = substream->runtime->private_data;
832 unsigned int idx, ptr, count, res;
833
834 if (snd_BUG_ON(!viadev->tbl_entries))
835 return 0;
836 if (!(inb(VIADEV_REG(viadev, OFFSET_STATUS)) & VIA_REG_STAT_ACTIVE))
837 return 0;
838
839 spin_lock(&chip->reg_lock);
840 count = inl(VIADEV_REG(viadev, OFFSET_CURR_COUNT)) & 0xffffff;
841 /* The via686a does not have the current index register,
842 * so we need to calculate the index from CURR_PTR.
843 */
844 ptr = inl(VIADEV_REG(viadev, OFFSET_CURR_PTR));
845 if (ptr <= (unsigned int)viadev->table.addr)
846 idx = 0;
847 else /* CURR_PTR holds the address + 8 */
848 idx = ((ptr - (unsigned int)viadev->table.addr) / 8 - 1) % viadev->tbl_entries;
849 res = calc_linear_pos(viadev, idx, count);
850 viadev->lastpos = res; /* remember the last position */
851 spin_unlock(&chip->reg_lock);
852
853 return bytes_to_frames(substream->runtime, res);
854 }
855
856 /*
857 * get the current pointer on via823x
858 */
859 static snd_pcm_uframes_t snd_via8233_pcm_pointer(struct snd_pcm_substream *substream)
860 {
861 struct via82xx *chip = snd_pcm_substream_chip(substream);
862 struct viadev *viadev = substream->runtime->private_data;
863 unsigned int idx, count, res;
864 int status;
865
866 if (snd_BUG_ON(!viadev->tbl_entries))
867 return 0;
868
869 spin_lock(&chip->reg_lock);
870 count = inl(VIADEV_REG(viadev, OFFSET_CURR_COUNT));
871 status = viadev->in_interrupt;
872 if (!status)
873 status = inb(VIADEV_REG(viadev, OFFSET_STATUS));
874
875 /* An apparent bug in the 8251 is worked around by sending a
876 * REG_CTRL_START. */
877 if (chip->revision == VIA_REV_8251 && (status & VIA_REG_STAT_EOL))
878 snd_via82xx_pcm_trigger(substream, SNDRV_PCM_TRIGGER_START);
879
880 if (!(status & VIA_REG_STAT_ACTIVE)) {
881 res = 0;
882 goto unlock;
883 }
884 if (count & 0xffffff) {
885 idx = count >> 24;
886 if (idx >= viadev->tbl_entries) {
887 #ifdef POINTER_DEBUG
888 printk(KERN_DEBUG "fail: invalid idx = %i/%i\n", idx,
889 viadev->tbl_entries);
890 #endif
891 res = viadev->lastpos;
892 } else {
893 count &= 0xffffff;
894 res = calc_linear_pos(viadev, idx, count);
895 }
896 } else {
897 res = viadev->hwptr_done;
898 if (!viadev->in_interrupt) {
899 if (status & VIA_REG_STAT_EOL) {
900 res = 0;
901 } else
902 if (status & VIA_REG_STAT_FLAG) {
903 res += viadev->fragsize;
904 }
905 }
906 }
907 unlock:
908 viadev->lastpos = res;
909 spin_unlock(&chip->reg_lock);
910
911 return bytes_to_frames(substream->runtime, res);
912 }
913
914
915 /*
916 * hw_params callback:
917 * allocate the buffer and build up the buffer description table
918 */
919 static int snd_via82xx_hw_params(struct snd_pcm_substream *substream,
920 struct snd_pcm_hw_params *hw_params)
921 {
922 struct via82xx *chip = snd_pcm_substream_chip(substream);
923 struct viadev *viadev = substream->runtime->private_data;
924 int err;
925
926 err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
927 if (err < 0)
928 return err;
929 err = build_via_table(viadev, substream, chip->pci,
930 params_periods(hw_params),
931 params_period_bytes(hw_params));
932 if (err < 0)
933 return err;
934
935 return 0;
936 }
937
938 /*
939 * hw_free callback:
940 * clean up the buffer description table and release the buffer
941 */
942 static int snd_via82xx_hw_free(struct snd_pcm_substream *substream)
943 {
944 struct via82xx *chip = snd_pcm_substream_chip(substream);
945 struct viadev *viadev = substream->runtime->private_data;
946
947 clean_via_table(viadev, substream, chip->pci);
948 snd_pcm_lib_free_pages(substream);
949 return 0;
950 }
951
952
953 /*
954 * set up the table pointer
955 */
956 static void snd_via82xx_set_table_ptr(struct via82xx *chip, struct viadev *viadev)
957 {
958 snd_via82xx_codec_ready(chip, 0);
959 outl((u32)viadev->table.addr, VIADEV_REG(viadev, OFFSET_TABLE_PTR));
960 udelay(20);
961 snd_via82xx_codec_ready(chip, 0);
962 }
963
964 /*
965 * prepare callback for playback and capture on via686
966 */
967 static void via686_setup_format(struct via82xx *chip, struct viadev *viadev,
968 struct snd_pcm_runtime *runtime)
969 {
970 snd_via82xx_channel_reset(chip, viadev);
971 /* this must be set after channel_reset */
972 snd_via82xx_set_table_ptr(chip, viadev);
973 outb(VIA_REG_TYPE_AUTOSTART |
974 (runtime->format == SNDRV_PCM_FORMAT_S16_LE ? VIA_REG_TYPE_16BIT : 0) |
975 (runtime->channels > 1 ? VIA_REG_TYPE_STEREO : 0) |
976 ((viadev->reg_offset & 0x10) == 0 ? VIA_REG_TYPE_INT_LSAMPLE : 0) |
977 VIA_REG_TYPE_INT_EOL |
978 VIA_REG_TYPE_INT_FLAG, VIADEV_REG(viadev, OFFSET_TYPE));
979 }
980
981 static int snd_via686_playback_prepare(struct snd_pcm_substream *substream)
982 {
983 struct via82xx *chip = snd_pcm_substream_chip(substream);
984 struct viadev *viadev = substream->runtime->private_data;
985 struct snd_pcm_runtime *runtime = substream->runtime;
986
987 snd_ac97_set_rate(chip->ac97, AC97_PCM_FRONT_DAC_RATE, runtime->rate);
988 snd_ac97_set_rate(chip->ac97, AC97_SPDIF, runtime->rate);
989 via686_setup_format(chip, viadev, runtime);
990 return 0;
991 }
992
993 static int snd_via686_capture_prepare(struct snd_pcm_substream *substream)
994 {
995 struct via82xx *chip = snd_pcm_substream_chip(substream);
996 struct viadev *viadev = substream->runtime->private_data;
997 struct snd_pcm_runtime *runtime = substream->runtime;
998
999 snd_ac97_set_rate(chip->ac97, AC97_PCM_LR_ADC_RATE, runtime->rate);
1000 via686_setup_format(chip, viadev, runtime);
1001 return 0;
1002 }
1003
1004 /*
1005 * lock the current rate
1006 */
1007 static int via_lock_rate(struct via_rate_lock *rec, int rate)
1008 {
1009 int changed = 0;
1010
1011 spin_lock_irq(&rec->lock);
1012 if (rec->rate != rate) {
1013 if (rec->rate && rec->used > 1) /* already set */
1014 changed = -EINVAL;
1015 else {
1016 rec->rate = rate;
1017 changed = 1;
1018 }
1019 }
1020 spin_unlock_irq(&rec->lock);
1021 return changed;
1022 }
1023
1024 /*
1025 * prepare callback for DSX playback on via823x
1026 */
1027 static int snd_via8233_playback_prepare(struct snd_pcm_substream *substream)
1028 {
1029 struct via82xx *chip = snd_pcm_substream_chip(substream);
1030 struct viadev *viadev = substream->runtime->private_data;
1031 struct snd_pcm_runtime *runtime = substream->runtime;
1032 int ac97_rate = chip->dxs_src ? 48000 : runtime->rate;
1033 int rate_changed;
1034 u32 rbits;
1035
1036 if ((rate_changed = via_lock_rate(&chip->rates[0], ac97_rate)) < 0)
1037 return rate_changed;
1038 if (rate_changed)
1039 snd_ac97_set_rate(chip->ac97, AC97_PCM_FRONT_DAC_RATE,
1040 chip->no_vra ? 48000 : runtime->rate);
1041 if (chip->spdif_on && viadev->reg_offset == 0x30)
1042 snd_ac97_set_rate(chip->ac97, AC97_SPDIF, runtime->rate);
1043
1044 if (runtime->rate == 48000)
1045 rbits = 0xfffff;
1046 else
1047 rbits = (0x100000 / 48000) * runtime->rate +
1048 ((0x100000 % 48000) * runtime->rate) / 48000;
1049 snd_BUG_ON(rbits & ~0xfffff);
1050 snd_via82xx_channel_reset(chip, viadev);
1051 snd_via82xx_set_table_ptr(chip, viadev);
1052 outb(chip->playback_volume[viadev->reg_offset / 0x10][0],
1053 VIADEV_REG(viadev, OFS_PLAYBACK_VOLUME_L));
1054 outb(chip->playback_volume[viadev->reg_offset / 0x10][1],
1055 VIADEV_REG(viadev, OFS_PLAYBACK_VOLUME_R));
1056 outl((runtime->format == SNDRV_PCM_FORMAT_S16_LE ? VIA8233_REG_TYPE_16BIT : 0) | /* format */
1057 (runtime->channels > 1 ? VIA8233_REG_TYPE_STEREO : 0) | /* stereo */
1058 rbits | /* rate */
1059 0xff000000, /* STOP index is never reached */
1060 VIADEV_REG(viadev, OFFSET_STOP_IDX));
1061 udelay(20);
1062 snd_via82xx_codec_ready(chip, 0);
1063 return 0;
1064 }
1065
1066 /*
1067 * prepare callback for multi-channel playback on via823x
1068 */
1069 static int snd_via8233_multi_prepare(struct snd_pcm_substream *substream)
1070 {
1071 struct via82xx *chip = snd_pcm_substream_chip(substream);
1072 struct viadev *viadev = substream->runtime->private_data;
1073 struct snd_pcm_runtime *runtime = substream->runtime;
1074 unsigned int slots;
1075 int fmt;
1076
1077 if (via_lock_rate(&chip->rates[0], runtime->rate) < 0)
1078 return -EINVAL;
1079 snd_ac97_set_rate(chip->ac97, AC97_PCM_FRONT_DAC_RATE, runtime->rate);
1080 snd_ac97_set_rate(chip->ac97, AC97_PCM_SURR_DAC_RATE, runtime->rate);
1081 snd_ac97_set_rate(chip->ac97, AC97_PCM_LFE_DAC_RATE, runtime->rate);
1082 snd_ac97_set_rate(chip->ac97, AC97_SPDIF, runtime->rate);
1083 snd_via82xx_channel_reset(chip, viadev);
1084 snd_via82xx_set_table_ptr(chip, viadev);
1085
1086 fmt = (runtime->format == SNDRV_PCM_FORMAT_S16_LE) ?
1087 VIA_REG_MULTPLAY_FMT_16BIT : VIA_REG_MULTPLAY_FMT_8BIT;
1088 fmt |= runtime->channels << 4;
1089 outb(fmt, VIADEV_REG(viadev, OFS_MULTPLAY_FORMAT));
1090 #if 0
1091 if (chip->revision == VIA_REV_8233A)
1092 slots = 0;
1093 else
1094 #endif
1095 {
1096 /* set sample number to slot 3, 4, 7, 8, 6, 9 (for VIA8233/C,8235) */
1097 /* corresponding to FL, FR, RL, RR, C, LFE ?? */
1098 switch (runtime->channels) {
1099 case 1: slots = (1<<0) | (1<<4); break;
1100 case 2: slots = (1<<0) | (2<<4); break;
1101 case 3: slots = (1<<0) | (2<<4) | (5<<8); break;
1102 case 4: slots = (1<<0) | (2<<4) | (3<<8) | (4<<12); break;
1103 case 5: slots = (1<<0) | (2<<4) | (3<<8) | (4<<12) | (5<<16); break;
1104 case 6: slots = (1<<0) | (2<<4) | (3<<8) | (4<<12) | (5<<16) | (6<<20); break;
1105 default: slots = 0; break;
1106 }
1107 }
1108 /* STOP index is never reached */
1109 outl(0xff000000 | slots, VIADEV_REG(viadev, OFFSET_STOP_IDX));
1110 udelay(20);
1111 snd_via82xx_codec_ready(chip, 0);
1112 return 0;
1113 }
1114
1115 /*
1116 * prepare callback for capture on via823x
1117 */
1118 static int snd_via8233_capture_prepare(struct snd_pcm_substream *substream)
1119 {
1120 struct via82xx *chip = snd_pcm_substream_chip(substream);
1121 struct viadev *viadev = substream->runtime->private_data;
1122 struct snd_pcm_runtime *runtime = substream->runtime;
1123
1124 if (via_lock_rate(&chip->rates[1], runtime->rate) < 0)
1125 return -EINVAL;
1126 snd_ac97_set_rate(chip->ac97, AC97_PCM_LR_ADC_RATE, runtime->rate);
1127 snd_via82xx_channel_reset(chip, viadev);
1128 snd_via82xx_set_table_ptr(chip, viadev);
1129 outb(VIA_REG_CAPTURE_FIFO_ENABLE, VIADEV_REG(viadev, OFS_CAPTURE_FIFO));
1130 outl((runtime->format == SNDRV_PCM_FORMAT_S16_LE ? VIA8233_REG_TYPE_16BIT : 0) |
1131 (runtime->channels > 1 ? VIA8233_REG_TYPE_STEREO : 0) |
1132 0xff000000, /* STOP index is never reached */
1133 VIADEV_REG(viadev, OFFSET_STOP_IDX));
1134 udelay(20);
1135 snd_via82xx_codec_ready(chip, 0);
1136 return 0;
1137 }
1138
1139
1140 /*
1141 * pcm hardware definition, identical for both playback and capture
1142 */
1143 static struct snd_pcm_hardware snd_via82xx_hw =
1144 {
1145 .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1146 SNDRV_PCM_INFO_BLOCK_TRANSFER |
1147 SNDRV_PCM_INFO_MMAP_VALID |
1148 /* SNDRV_PCM_INFO_RESUME | */
1149 SNDRV_PCM_INFO_PAUSE),
1150 .formats = SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
1151 .rates = SNDRV_PCM_RATE_48000,
1152 .rate_min = 48000,
1153 .rate_max = 48000,
1154 .channels_min = 1,
1155 .channels_max = 2,
1156 .buffer_bytes_max = VIA_MAX_BUFSIZE,
1157 .period_bytes_min = 32,
1158 .period_bytes_max = VIA_MAX_BUFSIZE / 2,
1159 .periods_min = 2,
1160 .periods_max = VIA_TABLE_SIZE / 2,
1161 .fifo_size = 0,
1162 };
1163
1164
1165 /*
1166 * open callback skeleton
1167 */
1168 static int snd_via82xx_pcm_open(struct via82xx *chip, struct viadev *viadev,
1169 struct snd_pcm_substream *substream)
1170 {
1171 struct snd_pcm_runtime *runtime = substream->runtime;
1172 int err;
1173 struct via_rate_lock *ratep;
1174
1175 runtime->hw = snd_via82xx_hw;
1176
1177 /* set the hw rate condition */
1178 ratep = &chip->rates[viadev->direction];
1179 spin_lock_irq(&ratep->lock);
1180 ratep->used++;
1181 if (chip->spdif_on && viadev->reg_offset == 0x30) {
1182 /* DXS#3 and spdif is on */
1183 runtime->hw.rates = chip->ac97->rates[AC97_RATES_SPDIF];
1184 snd_pcm_limit_hw_rates(runtime);
1185 } else if (chip->dxs_fixed && viadev->reg_offset < 0x40) {
1186 /* fixed DXS playback rate */
1187 runtime->hw.rates = SNDRV_PCM_RATE_48000;
1188 runtime->hw.rate_min = runtime->hw.rate_max = 48000;
1189 } else if (chip->dxs_src && viadev->reg_offset < 0x40) {
1190 /* use full SRC capabilities of DXS */
1191 runtime->hw.rates = (SNDRV_PCM_RATE_CONTINUOUS |
1192 SNDRV_PCM_RATE_8000_48000);
1193 runtime->hw.rate_min = 8000;
1194 runtime->hw.rate_max = 48000;
1195 } else if (! ratep->rate) {
1196 int idx = viadev->direction ? AC97_RATES_ADC : AC97_RATES_FRONT_DAC;
1197 runtime->hw.rates = chip->ac97->rates[idx];
1198 snd_pcm_limit_hw_rates(runtime);
1199 } else {
1200 /* a fixed rate */
1201 runtime->hw.rates = SNDRV_PCM_RATE_KNOT;
1202 runtime->hw.rate_max = runtime->hw.rate_min = ratep->rate;
1203 }
1204 spin_unlock_irq(&ratep->lock);
1205
1206 /* we may remove following constaint when we modify table entries
1207 in interrupt */
1208 if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
1209 return err;
1210
1211 runtime->private_data = viadev;
1212 viadev->substream = substream;
1213
1214 return 0;
1215 }
1216
1217
1218 /*
1219 * open callback for playback on via686 and via823x DSX
1220 */
1221 static int snd_via82xx_playback_open(struct snd_pcm_substream *substream)
1222 {
1223 struct via82xx *chip = snd_pcm_substream_chip(substream);
1224 struct viadev *viadev = &chip->devs[chip->playback_devno + substream->number];
1225 int err;
1226
1227 if ((err = snd_via82xx_pcm_open(chip, viadev, substream)) < 0)
1228 return err;
1229 return 0;
1230 }
1231
1232 /*
1233 * open callback for playback on via823x multi-channel
1234 */
1235 static int snd_via8233_multi_open(struct snd_pcm_substream *substream)
1236 {
1237 struct via82xx *chip = snd_pcm_substream_chip(substream);
1238 struct viadev *viadev = &chip->devs[chip->multi_devno];
1239 int err;
1240 /* channels constraint for VIA8233A
1241 * 3 and 5 channels are not supported
1242 */
1243 static unsigned int channels[] = {
1244 1, 2, 4, 6
1245 };
1246 static struct snd_pcm_hw_constraint_list hw_constraints_channels = {
1247 .count = ARRAY_SIZE(channels),
1248 .list = channels,
1249 .mask = 0,
1250 };
1251
1252 if ((err = snd_via82xx_pcm_open(chip, viadev, substream)) < 0)
1253 return err;
1254 substream->runtime->hw.channels_max = 6;
1255 if (chip->revision == VIA_REV_8233A)
1256 snd_pcm_hw_constraint_list(substream->runtime, 0,
1257 SNDRV_PCM_HW_PARAM_CHANNELS,
1258 &hw_constraints_channels);
1259 return 0;
1260 }
1261
1262 /*
1263 * open callback for capture on via686 and via823x
1264 */
1265 static int snd_via82xx_capture_open(struct snd_pcm_substream *substream)
1266 {
1267 struct via82xx *chip = snd_pcm_substream_chip(substream);
1268 struct viadev *viadev = &chip->devs[chip->capture_devno + substream->pcm->device];
1269
1270 return snd_via82xx_pcm_open(chip, viadev, substream);
1271 }
1272
1273 /*
1274 * close callback
1275 */
1276 static int snd_via82xx_pcm_close(struct snd_pcm_substream *substream)
1277 {
1278 struct via82xx *chip = snd_pcm_substream_chip(substream);
1279 struct viadev *viadev = substream->runtime->private_data;
1280 struct via_rate_lock *ratep;
1281
1282 /* release the rate lock */
1283 ratep = &chip->rates[viadev->direction];
1284 spin_lock_irq(&ratep->lock);
1285 ratep->used--;
1286 if (! ratep->used)
1287 ratep->rate = 0;
1288 spin_unlock_irq(&ratep->lock);
1289 if (! ratep->rate) {
1290 if (! viadev->direction) {
1291 snd_ac97_update_power(chip->ac97,
1292 AC97_PCM_FRONT_DAC_RATE, 0);
1293 snd_ac97_update_power(chip->ac97,
1294 AC97_PCM_SURR_DAC_RATE, 0);
1295 snd_ac97_update_power(chip->ac97,
1296 AC97_PCM_LFE_DAC_RATE, 0);
1297 } else
1298 snd_ac97_update_power(chip->ac97,
1299 AC97_PCM_LR_ADC_RATE, 0);
1300 }
1301 viadev->substream = NULL;
1302 return 0;
1303 }
1304
1305
1306 /* via686 playback callbacks */
1307 static struct snd_pcm_ops snd_via686_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_via686_playback_prepare,
1314 .trigger = snd_via82xx_pcm_trigger,
1315 .pointer = snd_via686_pcm_pointer,
1316 .page = snd_pcm_sgbuf_ops_page,
1317 };
1318
1319 /* via686 capture callbacks */
1320 static struct snd_pcm_ops snd_via686_capture_ops = {
1321 .open = snd_via82xx_capture_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_via686_capture_prepare,
1327 .trigger = snd_via82xx_pcm_trigger,
1328 .pointer = snd_via686_pcm_pointer,
1329 .page = snd_pcm_sgbuf_ops_page,
1330 };
1331
1332 /* via823x DSX playback callbacks */
1333 static struct snd_pcm_ops snd_via8233_playback_ops = {
1334 .open = snd_via82xx_playback_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_playback_prepare,
1340 .trigger = snd_via82xx_pcm_trigger,
1341 .pointer = snd_via8233_pcm_pointer,
1342 .page = snd_pcm_sgbuf_ops_page,
1343 };
1344
1345 /* via823x multi-channel playback callbacks */
1346 static struct snd_pcm_ops snd_via8233_multi_ops = {
1347 .open = snd_via8233_multi_open,
1348 .close = snd_via82xx_pcm_close,
1349 .ioctl = snd_pcm_lib_ioctl,
1350 .hw_params = snd_via82xx_hw_params,
1351 .hw_free = snd_via82xx_hw_free,
1352 .prepare = snd_via8233_multi_prepare,
1353 .trigger = snd_via82xx_pcm_trigger,
1354 .pointer = snd_via8233_pcm_pointer,
1355 .page = snd_pcm_sgbuf_ops_page,
1356 };
1357
1358 /* via823x capture callbacks */
1359 static struct snd_pcm_ops snd_via8233_capture_ops = {
1360 .open = snd_via82xx_capture_open,
1361 .close = snd_via82xx_pcm_close,
1362 .ioctl = snd_pcm_lib_ioctl,
1363 .hw_params = snd_via82xx_hw_params,
1364 .hw_free = snd_via82xx_hw_free,
1365 .prepare = snd_via8233_capture_prepare,
1366 .trigger = snd_via82xx_pcm_trigger,
1367 .pointer = snd_via8233_pcm_pointer,
1368 .page = snd_pcm_sgbuf_ops_page,
1369 };
1370
1371
1372 static void init_viadev(struct via82xx *chip, int idx, unsigned int reg_offset,
1373 int shadow_pos, int direction)
1374 {
1375 chip->devs[idx].reg_offset = reg_offset;
1376 chip->devs[idx].shadow_shift = shadow_pos * 4;
1377 chip->devs[idx].direction = direction;
1378 chip->devs[idx].port = chip->port + reg_offset;
1379 }
1380
1381 /*
1382 * create pcm instances for VIA8233, 8233C and 8235 (not 8233A)
1383 */
1384 static int __devinit snd_via8233_pcm_new(struct via82xx *chip)
1385 {
1386 struct snd_pcm *pcm;
1387 int i, err;
1388
1389 chip->playback_devno = 0; /* x 4 */
1390 chip->multi_devno = 4; /* x 1 */
1391 chip->capture_devno = 5; /* x 2 */
1392 chip->num_devs = 7;
1393 chip->intr_mask = 0x33033333; /* FLAG|EOL for rec0-1, mc, sdx0-3 */
1394
1395 /* PCM #0: 4 DSX playbacks and 1 capture */
1396 err = snd_pcm_new(chip->card, chip->card->shortname, 0, 4, 1, &pcm);
1397 if (err < 0)
1398 return err;
1399 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_via8233_playback_ops);
1400 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_via8233_capture_ops);
1401 pcm->private_data = chip;
1402 strcpy(pcm->name, chip->card->shortname);
1403 chip->pcms[0] = pcm;
1404 /* set up playbacks */
1405 for (i = 0; i < 4; i++)
1406 init_viadev(chip, i, 0x10 * i, i, 0);
1407 /* capture */
1408 init_viadev(chip, chip->capture_devno, VIA_REG_CAPTURE_8233_STATUS, 6, 1);
1409
1410 snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
1411 snd_dma_pci_data(chip->pci),
1412 64*1024, VIA_MAX_BUFSIZE);
1413
1414 /* PCM #1: multi-channel playback and 2nd capture */
1415 err = snd_pcm_new(chip->card, chip->card->shortname, 1, 1, 1, &pcm);
1416 if (err < 0)
1417 return err;
1418 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_via8233_multi_ops);
1419 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_via8233_capture_ops);
1420 pcm->private_data = chip;
1421 strcpy(pcm->name, chip->card->shortname);
1422 chip->pcms[1] = pcm;
1423 /* set up playback */
1424 init_viadev(chip, chip->multi_devno, VIA_REG_MULTPLAY_STATUS, 4, 0);
1425 /* set up capture */
1426 init_viadev(chip, chip->capture_devno + 1, VIA_REG_CAPTURE_8233_STATUS + 0x10, 7, 1);
1427
1428 snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
1429 snd_dma_pci_data(chip->pci),
1430 64*1024, VIA_MAX_BUFSIZE);
1431 return 0;
1432 }
1433
1434 /*
1435 * create pcm instances for VIA8233A
1436 */
1437 static int __devinit snd_via8233a_pcm_new(struct via82xx *chip)
1438 {
1439 struct snd_pcm *pcm;
1440 int err;
1441
1442 chip->multi_devno = 0;
1443 chip->playback_devno = 1;
1444 chip->capture_devno = 2;
1445 chip->num_devs = 3;
1446 chip->intr_mask = 0x03033000; /* FLAG|EOL for rec0, mc, sdx3 */
1447
1448 /* PCM #0: multi-channel playback and capture */
1449 err = snd_pcm_new(chip->card, chip->card->shortname, 0, 1, 1, &pcm);
1450 if (err < 0)
1451 return err;
1452 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_via8233_multi_ops);
1453 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_via8233_capture_ops);
1454 pcm->private_data = chip;
1455 strcpy(pcm->name, chip->card->shortname);
1456 chip->pcms[0] = pcm;
1457 /* set up playback */
1458 init_viadev(chip, chip->multi_devno, VIA_REG_MULTPLAY_STATUS, 4, 0);
1459 /* capture */
1460 init_viadev(chip, chip->capture_devno, VIA_REG_CAPTURE_8233_STATUS, 6, 1);
1461
1462 snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
1463 snd_dma_pci_data(chip->pci),
1464 64*1024, VIA_MAX_BUFSIZE);
1465
1466 /* SPDIF supported? */
1467 if (! ac97_can_spdif(chip->ac97))
1468 return 0;
1469
1470 /* PCM #1: DXS3 playback (for spdif) */
1471 err = snd_pcm_new(chip->card, chip->card->shortname, 1, 1, 0, &pcm);
1472 if (err < 0)
1473 return err;
1474 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_via8233_playback_ops);
1475 pcm->private_data = chip;
1476 strcpy(pcm->name, chip->card->shortname);
1477 chip->pcms[1] = pcm;
1478 /* set up playback */
1479 init_viadev(chip, chip->playback_devno, 0x30, 3, 0);
1480
1481 snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
1482 snd_dma_pci_data(chip->pci),
1483 64*1024, VIA_MAX_BUFSIZE);
1484 return 0;
1485 }
1486
1487 /*
1488 * create a pcm instance for via686a/b
1489 */
1490 static int __devinit snd_via686_pcm_new(struct via82xx *chip)
1491 {
1492 struct snd_pcm *pcm;
1493 int err;
1494
1495 chip->playback_devno = 0;
1496 chip->capture_devno = 1;
1497 chip->num_devs = 2;
1498 chip->intr_mask = 0x77; /* FLAG | EOL for PB, CP, FM */
1499
1500 err = snd_pcm_new(chip->card, chip->card->shortname, 0, 1, 1, &pcm);
1501 if (err < 0)
1502 return err;
1503 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_via686_playback_ops);
1504 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_via686_capture_ops);
1505 pcm->private_data = chip;
1506 strcpy(pcm->name, chip->card->shortname);
1507 chip->pcms[0] = pcm;
1508 init_viadev(chip, 0, VIA_REG_PLAYBACK_STATUS, 0, 0);
1509 init_viadev(chip, 1, VIA_REG_CAPTURE_STATUS, 0, 1);
1510
1511 snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
1512 snd_dma_pci_data(chip->pci),
1513 64*1024, VIA_MAX_BUFSIZE);
1514 return 0;
1515 }
1516
1517
1518 /*
1519 * Mixer part
1520 */
1521
1522 static int snd_via8233_capture_source_info(struct snd_kcontrol *kcontrol,
1523 struct snd_ctl_elem_info *uinfo)
1524 {
1525 /* formerly they were "Line" and "Mic", but it looks like that they
1526 * have nothing to do with the actual physical connections...
1527 */
1528 static char *texts[2] = {
1529 "Input1", "Input2"
1530 };
1531 uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
1532 uinfo->count = 1;
1533 uinfo->value.enumerated.items = 2;
1534 if (uinfo->value.enumerated.item >= 2)
1535 uinfo->value.enumerated.item = 1;
1536 strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
1537 return 0;
1538 }
1539
1540 static int snd_via8233_capture_source_get(struct snd_kcontrol *kcontrol,
1541 struct snd_ctl_elem_value *ucontrol)
1542 {
1543 struct via82xx *chip = snd_kcontrol_chip(kcontrol);
1544 unsigned long port = chip->port + (kcontrol->id.index ? (VIA_REG_CAPTURE_CHANNEL + 0x10) : VIA_REG_CAPTURE_CHANNEL);
1545 ucontrol->value.enumerated.item[0] = inb(port) & VIA_REG_CAPTURE_CHANNEL_MIC ? 1 : 0;
1546 return 0;
1547 }
1548
1549 static int snd_via8233_capture_source_put(struct snd_kcontrol *kcontrol,
1550 struct snd_ctl_elem_value *ucontrol)
1551 {
1552 struct via82xx *chip = snd_kcontrol_chip(kcontrol);
1553 unsigned long port = chip->port + (kcontrol->id.index ? (VIA_REG_CAPTURE_CHANNEL + 0x10) : VIA_REG_CAPTURE_CHANNEL);
1554 u8 val, oval;
1555
1556 spin_lock_irq(&chip->reg_lock);
1557 oval = inb(port);
1558 val = oval & ~VIA_REG_CAPTURE_CHANNEL_MIC;
1559 if (ucontrol->value.enumerated.item[0])
1560 val |= VIA_REG_CAPTURE_CHANNEL_MIC;
1561 if (val != oval)
1562 outb(val, port);
1563 spin_unlock_irq(&chip->reg_lock);
1564 return val != oval;
1565 }
1566
1567 static struct snd_kcontrol_new snd_via8233_capture_source __devinitdata = {
1568 .name = "Input Source Select",
1569 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1570 .info = snd_via8233_capture_source_info,
1571 .get = snd_via8233_capture_source_get,
1572 .put = snd_via8233_capture_source_put,
1573 };
1574
1575 #define snd_via8233_dxs3_spdif_info snd_ctl_boolean_mono_info
1576
1577 static int snd_via8233_dxs3_spdif_get(struct snd_kcontrol *kcontrol,
1578 struct snd_ctl_elem_value *ucontrol)
1579 {
1580 struct via82xx *chip = snd_kcontrol_chip(kcontrol);
1581 u8 val;
1582
1583 pci_read_config_byte(chip->pci, VIA8233_SPDIF_CTRL, &val);
1584 ucontrol->value.integer.value[0] = (val & VIA8233_SPDIF_DX3) ? 1 : 0;
1585 return 0;
1586 }
1587
1588 static int snd_via8233_dxs3_spdif_put(struct snd_kcontrol *kcontrol,
1589 struct snd_ctl_elem_value *ucontrol)
1590 {
1591 struct via82xx *chip = snd_kcontrol_chip(kcontrol);
1592 u8 val, oval;
1593
1594 pci_read_config_byte(chip->pci, VIA8233_SPDIF_CTRL, &oval);
1595 val = oval & ~VIA8233_SPDIF_DX3;
1596 if (ucontrol->value.integer.value[0])
1597 val |= VIA8233_SPDIF_DX3;
1598 /* save the spdif flag for rate filtering */
1599 chip->spdif_on = ucontrol->value.integer.value[0] ? 1 : 0;
1600 if (val != oval) {
1601 pci_write_config_byte(chip->pci, VIA8233_SPDIF_CTRL, val);
1602 return 1;
1603 }
1604 return 0;
1605 }
1606
1607 static struct snd_kcontrol_new snd_via8233_dxs3_spdif_control __devinitdata = {
1608 .name = SNDRV_CTL_NAME_IEC958("Output ",NONE,SWITCH),
1609 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1610 .info = snd_via8233_dxs3_spdif_info,
1611 .get = snd_via8233_dxs3_spdif_get,
1612 .put = snd_via8233_dxs3_spdif_put,
1613 };
1614
1615 static int snd_via8233_dxs_volume_info(struct snd_kcontrol *kcontrol,
1616 struct snd_ctl_elem_info *uinfo)
1617 {
1618 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
1619 uinfo->count = 2;
1620 uinfo->value.integer.min = 0;
1621 uinfo->value.integer.max = VIA_DXS_MAX_VOLUME;
1622 return 0;
1623 }
1624
1625 static int snd_via8233_dxs_volume_get(struct snd_kcontrol *kcontrol,
1626 struct snd_ctl_elem_value *ucontrol)
1627 {
1628 struct via82xx *chip = snd_kcontrol_chip(kcontrol);
1629 unsigned int idx = snd_ctl_get_ioff(kcontrol, &ucontrol->id);
1630
1631 ucontrol->value.integer.value[0] = VIA_DXS_MAX_VOLUME - chip->playback_volume[idx][0];
1632 ucontrol->value.integer.value[1] = VIA_DXS_MAX_VOLUME - chip->playback_volume[idx][1];
1633 return 0;
1634 }
1635
1636 static int snd_via8233_pcmdxs_volume_get(struct snd_kcontrol *kcontrol,
1637 struct snd_ctl_elem_value *ucontrol)
1638 {
1639 struct via82xx *chip = snd_kcontrol_chip(kcontrol);
1640 ucontrol->value.integer.value[0] = VIA_DXS_MAX_VOLUME - chip->playback_volume_c[0];
1641 ucontrol->value.integer.value[1] = VIA_DXS_MAX_VOLUME - chip->playback_volume_c[1];
1642 return 0;
1643 }
1644
1645 static int snd_via8233_dxs_volume_put(struct snd_kcontrol *kcontrol,
1646 struct snd_ctl_elem_value *ucontrol)
1647 {
1648 struct via82xx *chip = snd_kcontrol_chip(kcontrol);
1649 unsigned int idx = snd_ctl_get_ioff(kcontrol, &ucontrol->id);
1650 unsigned long port = chip->port + 0x10 * idx;
1651 unsigned char val;
1652 int i, change = 0;
1653
1654 for (i = 0; i < 2; i++) {
1655 val = ucontrol->value.integer.value[i];
1656 if (val > VIA_DXS_MAX_VOLUME)
1657 val = VIA_DXS_MAX_VOLUME;
1658 val = VIA_DXS_MAX_VOLUME - val;
1659 change |= val != chip->playback_volume[idx][i];
1660 if (change) {
1661 chip->playback_volume[idx][i] = val;
1662 outb(val, port + VIA_REG_OFS_PLAYBACK_VOLUME_L + i);
1663 }
1664 }
1665 return change;
1666 }
1667
1668 static int snd_via8233_pcmdxs_volume_put(struct snd_kcontrol *kcontrol,
1669 struct snd_ctl_elem_value *ucontrol)
1670 {
1671 struct via82xx *chip = snd_kcontrol_chip(kcontrol);
1672 unsigned int idx;
1673 unsigned char val;
1674 int i, change = 0;
1675
1676 for (i = 0; i < 2; i++) {
1677 val = ucontrol->value.integer.value[i];
1678 if (val > VIA_DXS_MAX_VOLUME)
1679 val = VIA_DXS_MAX_VOLUME;
1680 val = VIA_DXS_MAX_VOLUME - val;
1681 if (val != chip->playback_volume_c[i]) {
1682 change = 1;
1683 chip->playback_volume_c[i] = val;
1684 for (idx = 0; idx < 4; idx++) {
1685 unsigned long port = chip->port + 0x10 * idx;
1686 chip->playback_volume[idx][i] = val;
1687 outb(val, port + VIA_REG_OFS_PLAYBACK_VOLUME_L + i);
1688 }
1689 }
1690 }
1691 return change;
1692 }
1693
1694 static const DECLARE_TLV_DB_SCALE(db_scale_dxs, -4650, 150, 1);
1695
1696 static struct snd_kcontrol_new snd_via8233_pcmdxs_volume_control __devinitdata = {
1697 .name = "PCM Playback Volume",
1698 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1699 .access = (SNDRV_CTL_ELEM_ACCESS_READWRITE |
1700 SNDRV_CTL_ELEM_ACCESS_TLV_READ),
1701 .info = snd_via8233_dxs_volume_info,
1702 .get = snd_via8233_pcmdxs_volume_get,
1703 .put = snd_via8233_pcmdxs_volume_put,
1704 .tlv = { .p = db_scale_dxs }
1705 };
1706
1707 static struct snd_kcontrol_new snd_via8233_dxs_volume_control __devinitdata = {
1708 .name = "VIA DXS Playback Volume",
1709 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1710 .access = (SNDRV_CTL_ELEM_ACCESS_READWRITE |
1711 SNDRV_CTL_ELEM_ACCESS_TLV_READ),
1712 .count = 4,
1713 .info = snd_via8233_dxs_volume_info,
1714 .get = snd_via8233_dxs_volume_get,
1715 .put = snd_via8233_dxs_volume_put,
1716 .tlv = { .p = db_scale_dxs }
1717 };
1718
1719 /*
1720 */
1721
1722 static void snd_via82xx_mixer_free_ac97_bus(struct snd_ac97_bus *bus)
1723 {
1724 struct via82xx *chip = bus->private_data;
1725 chip->ac97_bus = NULL;
1726 }
1727
1728 static void snd_via82xx_mixer_free_ac97(struct snd_ac97 *ac97)
1729 {
1730 struct via82xx *chip = ac97->private_data;
1731 chip->ac97 = NULL;
1732 }
1733
1734 static struct ac97_quirk ac97_quirks[] = {
1735 {
1736 .subvendor = 0x1106,
1737 .subdevice = 0x4161,
1738 .codec_id = 0x56494161, /* VT1612A */
1739 .name = "Soltek SL-75DRV5",
1740 .type = AC97_TUNE_NONE
1741 },
1742 { /* FIXME: which codec? */
1743 .subvendor = 0x1106,
1744 .subdevice = 0x4161,
1745 .name = "ASRock K7VT2",
1746 .type = AC97_TUNE_HP_ONLY
1747 },
1748 {
1749 .subvendor = 0x1019,
1750 .subdevice = 0x0a81,
1751 .name = "ECS K7VTA3",
1752 .type = AC97_TUNE_HP_ONLY
1753 },
1754 {
1755 .subvendor = 0x1019,
1756 .subdevice = 0x0a85,
1757 .name = "ECS L7VMM2",
1758 .type = AC97_TUNE_HP_ONLY
1759 },
1760 {
1761 .subvendor = 0x1019,
1762 .subdevice = 0x1841,
1763 .name = "ECS K7VTA3",
1764 .type = AC97_TUNE_HP_ONLY
1765 },
1766 {
1767 .subvendor = 0x1849,
1768 .subdevice = 0x3059,
1769 .name = "ASRock K7VM2",
1770 .type = AC97_TUNE_HP_ONLY /* VT1616 */
1771 },
1772 {
1773 .subvendor = 0x14cd,
1774 .subdevice = 0x7002,
1775 .name = "Unknown",
1776 .type = AC97_TUNE_ALC_JACK
1777 },
1778 {
1779 .subvendor = 0x1071,
1780 .subdevice = 0x8590,
1781 .name = "Mitac Mobo",
1782 .type = AC97_TUNE_ALC_JACK
1783 },
1784 {
1785 .subvendor = 0x161f,
1786 .subdevice = 0x202b,
1787 .name = "Arima Notebook",
1788 .type = AC97_TUNE_HP_ONLY,
1789 },
1790 {
1791 .subvendor = 0x161f,
1792 .subdevice = 0x2032,
1793 .name = "Targa Traveller 811",
1794 .type = AC97_TUNE_HP_ONLY,
1795 },
1796 {
1797 .subvendor = 0x161f,
1798 .subdevice = 0x2032,
1799 .name = "m680x",
1800 .type = AC97_TUNE_HP_ONLY, /* http://launchpad.net/bugs/38546 */
1801 },
1802 {
1803 .subvendor = 0x1297,
1804 .subdevice = 0xa232,
1805 .name = "Shuttle AK32VN",
1806 .type = AC97_TUNE_HP_ONLY
1807 },
1808 { } /* terminator */
1809 };
1810
1811 static int __devinit snd_via82xx_mixer_new(struct via82xx *chip, const char *quirk_override)
1812 {
1813 struct snd_ac97_template ac97;
1814 int err;
1815 static struct snd_ac97_bus_ops ops = {
1816 .write = snd_via82xx_codec_write,
1817 .read = snd_via82xx_codec_read,
1818 .wait = snd_via82xx_codec_wait,
1819 };
1820
1821 if ((err = snd_ac97_bus(chip->card, 0, &ops, chip, &chip->ac97_bus)) < 0)
1822 return err;
1823 chip->ac97_bus->private_free = snd_via82xx_mixer_free_ac97_bus;
1824 chip->ac97_bus->clock = chip->ac97_clock;
1825
1826 memset(&ac97, 0, sizeof(ac97));
1827 ac97.private_data = chip;
1828 ac97.private_free = snd_via82xx_mixer_free_ac97;
1829 ac97.pci = chip->pci;
1830 ac97.scaps = AC97_SCAP_SKIP_MODEM | AC97_SCAP_POWER_SAVE;
1831 if ((err = snd_ac97_mixer(chip->ac97_bus, &ac97, &chip->ac97)) < 0)
1832 return err;
1833
1834 snd_ac97_tune_hardware(chip->ac97, ac97_quirks, quirk_override);
1835
1836 if (chip->chip_type != TYPE_VIA686) {
1837 /* use slot 10/11 */
1838 snd_ac97_update_bits(chip->ac97, AC97_EXTENDED_STATUS, 0x03 << 4, 0x03 << 4);
1839 }
1840
1841 return 0;
1842 }
1843
1844 #ifdef SUPPORT_JOYSTICK
1845 #define JOYSTICK_ADDR 0x200
1846 static int __devinit snd_via686_create_gameport(struct via82xx *chip, unsigned char *legacy)
1847 {
1848 struct gameport *gp;
1849 struct resource *r;
1850
1851 if (!joystick)
1852 return -ENODEV;
1853
1854 r = request_region(JOYSTICK_ADDR, 8, "VIA686 gameport");
1855 if (!r) {
1856 printk(KERN_WARNING "via82xx: cannot reserve joystick port 0x%#x\n",
1857 JOYSTICK_ADDR);
1858 return -EBUSY;
1859 }
1860
1861 chip->gameport = gp = gameport_allocate_port();
1862 if (!gp) {
1863 printk(KERN_ERR "via82xx: cannot allocate memory for gameport\n");
1864 release_and_free_resource(r);
1865 return -ENOMEM;
1866 }
1867
1868 gameport_set_name(gp, "VIA686 Gameport");
1869 gameport_set_phys(gp, "pci%s/gameport0", pci_name(chip->pci));
1870 gameport_set_dev_parent(gp, &chip->pci->dev);
1871 gp->io = JOYSTICK_ADDR;
1872 gameport_set_port_data(gp, r);
1873
1874 /* Enable legacy joystick port */
1875 *legacy |= VIA_FUNC_ENABLE_GAME;
1876 pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE, *legacy);
1877
1878 gameport_register_port(chip->gameport);
1879
1880 return 0;
1881 }
1882
1883 static void snd_via686_free_gameport(struct via82xx *chip)
1884 {
1885 if (chip->gameport) {
1886 struct resource *r = gameport_get_port_data(chip->gameport);
1887
1888 gameport_unregister_port(chip->gameport);
1889 chip->gameport = NULL;
1890 release_and_free_resource(r);
1891 }
1892 }
1893 #else
1894 static inline int snd_via686_create_gameport(struct via82xx *chip, unsigned char *legacy)
1895 {
1896 return -ENOSYS;
1897 }
1898 static inline void snd_via686_free_gameport(struct via82xx *chip) { }
1899 #endif
1900
1901
1902 /*
1903 *
1904 */
1905
1906 static int __devinit snd_via8233_init_misc(struct via82xx *chip)
1907 {
1908 int i, err, caps;
1909 unsigned char val;
1910
1911 caps = chip->chip_type == TYPE_VIA8233A ? 1 : 2;
1912 for (i = 0; i < caps; i++) {
1913 snd_via8233_capture_source.index = i;
1914 err = snd_ctl_add(chip->card, snd_ctl_new1(&snd_via8233_capture_source, chip));
1915 if (err < 0)
1916 return err;
1917 }
1918 if (ac97_can_spdif(chip->ac97)) {
1919 err = snd_ctl_add(chip->card, snd_ctl_new1(&snd_via8233_dxs3_spdif_control, chip));
1920 if (err < 0)
1921 return err;
1922 }
1923 if (chip->chip_type != TYPE_VIA8233A) {
1924 /* when no h/w PCM volume control is found, use DXS volume control
1925 * as the PCM vol control
1926 */
1927 struct snd_ctl_elem_id sid;
1928 memset(&sid, 0, sizeof(sid));
1929 strcpy(sid.name, "PCM Playback Volume");
1930 sid.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
1931 if (! snd_ctl_find_id(chip->card, &sid)) {
1932 snd_printd(KERN_INFO "Using DXS as PCM Playback\n");
1933 err = snd_ctl_add(chip->card, snd_ctl_new1(&snd_via8233_pcmdxs_volume_control, chip));
1934 if (err < 0)
1935 return err;
1936 }
1937 else /* Using DXS when PCM emulation is enabled is really weird */
1938 {
1939 /* Standalone DXS controls */
1940 err = snd_ctl_add(chip->card, snd_ctl_new1(&snd_via8233_dxs_volume_control, chip));
1941 if (err < 0)
1942 return err;
1943 }
1944 }
1945 /* select spdif data slot 10/11 */
1946 pci_read_config_byte(chip->pci, VIA8233_SPDIF_CTRL, &val);
1947 val = (val & ~VIA8233_SPDIF_SLOT_MASK) | VIA8233_SPDIF_SLOT_1011;
1948 val &= ~VIA8233_SPDIF_DX3; /* SPDIF off as default */
1949 pci_write_config_byte(chip->pci, VIA8233_SPDIF_CTRL, val);
1950
1951 return 0;
1952 }
1953
1954 static int __devinit snd_via686_init_misc(struct via82xx *chip)
1955 {
1956 unsigned char legacy, legacy_cfg;
1957 int rev_h = 0;
1958
1959 legacy = chip->old_legacy;
1960 legacy_cfg = chip->old_legacy_cfg;
1961 legacy |= VIA_FUNC_MIDI_IRQMASK; /* FIXME: correct? (disable MIDI) */
1962 legacy &= ~VIA_FUNC_ENABLE_GAME; /* disable joystick */
1963 if (chip->revision >= VIA_REV_686_H) {
1964 rev_h = 1;
1965 if (mpu_port >= 0x200) { /* force MIDI */
1966 mpu_port &= 0xfffc;
1967 pci_write_config_dword(chip->pci, 0x18, mpu_port | 0x01);
1968 #ifdef CONFIG_PM
1969 chip->mpu_port_saved = mpu_port;
1970 #endif
1971 } else {
1972 mpu_port = pci_resource_start(chip->pci, 2);
1973 }
1974 } else {
1975 switch (mpu_port) { /* force MIDI */
1976 case 0x300:
1977 case 0x310:
1978 case 0x320:
1979 case 0x330:
1980 legacy_cfg &= ~(3 << 2);
1981 legacy_cfg |= (mpu_port & 0x0030) >> 2;
1982 break;
1983 default: /* no, use BIOS settings */
1984 if (legacy & VIA_FUNC_ENABLE_MIDI)
1985 mpu_port = 0x300 + ((legacy_cfg & 0x000c) << 2);
1986 break;
1987 }
1988 }
1989 if (mpu_port >= 0x200 &&
1990 (chip->mpu_res = request_region(mpu_port, 2, "VIA82xx MPU401"))
1991 != NULL) {
1992 if (rev_h)
1993 legacy |= VIA_FUNC_MIDI_PNP; /* enable PCI I/O 2 */
1994 legacy |= VIA_FUNC_ENABLE_MIDI;
1995 } else {
1996 if (rev_h)
1997 legacy &= ~VIA_FUNC_MIDI_PNP; /* disable PCI I/O 2 */
1998 legacy &= ~VIA_FUNC_ENABLE_MIDI;
1999 mpu_port = 0;
2000 }
2001
2002 pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE, legacy);
2003 pci_write_config_byte(chip->pci, VIA_PNP_CONTROL, legacy_cfg);
2004 if (chip->mpu_res) {
2005 if (snd_mpu401_uart_new(chip->card, 0, MPU401_HW_VIA686A,
2006 mpu_port, MPU401_INFO_INTEGRATED,
2007 chip->irq, 0, &chip->rmidi) < 0) {
2008 printk(KERN_WARNING "unable to initialize MPU-401"
2009 " at 0x%lx, skipping\n", mpu_port);
2010 legacy &= ~VIA_FUNC_ENABLE_MIDI;
2011 } else {
2012 legacy &= ~VIA_FUNC_MIDI_IRQMASK; /* enable MIDI interrupt */
2013 }
2014 pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE, legacy);
2015 }
2016
2017 snd_via686_create_gameport(chip, &legacy);
2018
2019 #ifdef CONFIG_PM
2020 chip->legacy_saved = legacy;
2021 chip->legacy_cfg_saved = legacy_cfg;
2022 #endif
2023
2024 return 0;
2025 }
2026
2027
2028 /*
2029 * proc interface
2030 */
2031 static void snd_via82xx_proc_read(struct snd_info_entry *entry,
2032 struct snd_info_buffer *buffer)
2033 {
2034 struct via82xx *chip = entry->private_data;
2035 int i;
2036
2037 snd_iprintf(buffer, "%s\n\n", chip->card->longname);
2038 for (i = 0; i < 0xa0; i += 4) {
2039 snd_iprintf(buffer, "%02x: %08x\n", i, inl(chip->port + i));
2040 }
2041 }
2042
2043 static void __devinit snd_via82xx_proc_init(struct via82xx *chip)
2044 {
2045 struct snd_info_entry *entry;
2046
2047 if (! snd_card_proc_new(chip->card, "via82xx", &entry))
2048 snd_info_set_text_ops(entry, chip, snd_via82xx_proc_read);
2049 }
2050
2051 /*
2052 *
2053 */
2054
2055 static int snd_via82xx_chip_init(struct via82xx *chip)
2056 {
2057 unsigned int val;
2058 unsigned long end_time;
2059 unsigned char pval;
2060
2061 #if 0 /* broken on K7M? */
2062 if (chip->chip_type == TYPE_VIA686)
2063 /* disable all legacy ports */
2064 pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE, 0);
2065 #endif
2066 pci_read_config_byte(chip->pci, VIA_ACLINK_STAT, &pval);
2067 if (! (pval & VIA_ACLINK_C00_READY)) { /* codec not ready? */
2068 /* deassert ACLink reset, force SYNC */
2069 pci_write_config_byte(chip->pci, VIA_ACLINK_CTRL,
2070 VIA_ACLINK_CTRL_ENABLE |
2071 VIA_ACLINK_CTRL_RESET |
2072 VIA_ACLINK_CTRL_SYNC);
2073 udelay(100);
2074 #if 1 /* FIXME: should we do full reset here for all chip models? */
2075 pci_write_config_byte(chip->pci, VIA_ACLINK_CTRL, 0x00);
2076 udelay(100);
2077 #else
2078 /* deassert ACLink reset, force SYNC (warm AC'97 reset) */
2079 pci_write_config_byte(chip->pci, VIA_ACLINK_CTRL,
2080 VIA_ACLINK_CTRL_RESET|VIA_ACLINK_CTRL_SYNC);
2081 udelay(2);
2082 #endif
2083 /* ACLink on, deassert ACLink reset, VSR, SGD data out */
2084 /* note - FM data out has trouble with non VRA codecs !! */
2085 pci_write_config_byte(chip->pci, VIA_ACLINK_CTRL, VIA_ACLINK_CTRL_INIT);
2086 udelay(100);
2087 }
2088
2089 /* Make sure VRA is enabled, in case we didn't do a
2090 * complete codec reset, above */
2091 pci_read_config_byte(chip->pci, VIA_ACLINK_CTRL, &pval);
2092 if ((pval & VIA_ACLINK_CTRL_INIT) != VIA_ACLINK_CTRL_INIT) {
2093 /* ACLink on, deassert ACLink reset, VSR, SGD data out */
2094 /* note - FM data out has trouble with non VRA codecs !! */
2095 pci_write_config_byte(chip->pci, VIA_ACLINK_CTRL, VIA_ACLINK_CTRL_INIT);
2096 udelay(100);
2097 }
2098
2099 /* wait until codec ready */
2100 end_time = jiffies + msecs_to_jiffies(750);
2101 do {
2102 pci_read_config_byte(chip->pci, VIA_ACLINK_STAT, &pval);
2103 if (pval & VIA_ACLINK_C00_READY) /* primary codec ready */
2104 break;
2105 schedule_timeout_uninterruptible(1);
2106 } while (time_before(jiffies, end_time));
2107
2108 if ((val = snd_via82xx_codec_xread(chip)) & VIA_REG_AC97_BUSY)
2109 snd_printk(KERN_ERR "AC'97 codec is not ready [0x%x]\n", val);
2110
2111 #if 0 /* FIXME: we don't support the second codec yet so skip the detection now.. */
2112 snd_via82xx_codec_xwrite(chip, VIA_REG_AC97_READ |
2113 VIA_REG_AC97_SECONDARY_VALID |
2114 (VIA_REG_AC97_CODEC_ID_SECONDARY << VIA_REG_AC97_CODEC_ID_SHIFT));
2115 end_time = jiffies + msecs_to_jiffies(750);
2116 snd_via82xx_codec_xwrite(chip, VIA_REG_AC97_READ |
2117 VIA_REG_AC97_SECONDARY_VALID |
2118 (VIA_REG_AC97_CODEC_ID_SECONDARY << VIA_REG_AC97_CODEC_ID_SHIFT));
2119 do {
2120 if ((val = snd_via82xx_codec_xread(chip)) & VIA_REG_AC97_SECONDARY_VALID) {
2121 chip->ac97_secondary = 1;
2122 goto __ac97_ok2;
2123 }
2124 schedule_timeout_uninterruptible(1);
2125 } while (time_before(jiffies, end_time));
2126 /* This is ok, the most of motherboards have only one codec */
2127
2128 __ac97_ok2:
2129 #endif
2130
2131 if (chip->chip_type == TYPE_VIA686) {
2132 /* route FM trap to IRQ, disable FM trap */
2133 pci_write_config_byte(chip->pci, VIA_FM_NMI_CTRL, 0);
2134 /* disable all GPI interrupts */
2135 outl(0, VIAREG(chip, GPI_INTR));
2136 }
2137
2138 if (chip->chip_type != TYPE_VIA686) {
2139 /* Workaround for Award BIOS bug:
2140 * DXS channels don't work properly with VRA if MC97 is disabled.
2141 */
2142 struct pci_dev *pci;
2143 pci = pci_get_device(0x1106, 0x3068, NULL); /* MC97 */
2144 if (pci) {
2145 unsigned char data;
2146 pci_read_config_byte(pci, 0x44, &data);
2147 pci_write_config_byte(pci, 0x44, data | 0x40);
2148 pci_dev_put(pci);
2149 }
2150 }
2151
2152 if (chip->chip_type != TYPE_VIA8233A) {
2153 int i, idx;
2154 for (idx = 0; idx < 4; idx++) {
2155 unsigned long port = chip->port + 0x10 * idx;
2156 for (i = 0; i < 2; i++) {
2157 chip->playback_volume[idx][i]=chip->playback_volume_c[i];
2158 outb(chip->playback_volume_c[i],
2159 port + VIA_REG_OFS_PLAYBACK_VOLUME_L + i);
2160 }
2161 }
2162 }
2163
2164 return 0;
2165 }
2166
2167 #ifdef CONFIG_PM
2168 /*
2169 * power management
2170 */
2171 static int snd_via82xx_suspend(struct pci_dev *pci, pm_message_t state)
2172 {
2173 struct snd_card *card = pci_get_drvdata(pci);
2174 struct via82xx *chip = card->private_data;
2175 int i;
2176
2177 snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
2178 for (i = 0; i < 2; i++)
2179 snd_pcm_suspend_all(chip->pcms[i]);
2180 for (i = 0; i < chip->num_devs; i++)
2181 snd_via82xx_channel_reset(chip, &chip->devs[i]);
2182 synchronize_irq(chip->irq);
2183 snd_ac97_suspend(chip->ac97);
2184
2185 /* save misc values */
2186 if (chip->chip_type != TYPE_VIA686) {
2187 pci_read_config_byte(chip->pci, VIA8233_SPDIF_CTRL, &chip->spdif_ctrl_saved);
2188 chip->capture_src_saved[0] = inb(chip->port + VIA_REG_CAPTURE_CHANNEL);
2189 chip->capture_src_saved[1] = inb(chip->port + VIA_REG_CAPTURE_CHANNEL + 0x10);
2190 }
2191
2192 pci_disable_device(pci);
2193 pci_save_state(pci);
2194 pci_set_power_state(pci, pci_choose_state(pci, state));
2195 return 0;
2196 }
2197
2198 static int snd_via82xx_resume(struct pci_dev *pci)
2199 {
2200 struct snd_card *card = pci_get_drvdata(pci);
2201 struct via82xx *chip = card->private_data;
2202 int i;
2203
2204 pci_set_power_state(pci, PCI_D0);
2205 pci_restore_state(pci);
2206 if (pci_enable_device(pci) < 0) {
2207 printk(KERN_ERR "via82xx: pci_enable_device failed, "
2208 "disabling device\n");
2209 snd_card_disconnect(card);
2210 return -EIO;
2211 }
2212 pci_set_master(pci);
2213
2214 snd_via82xx_chip_init(chip);
2215
2216 if (chip->chip_type == TYPE_VIA686) {
2217 if (chip->mpu_port_saved)
2218 pci_write_config_dword(chip->pci, 0x18, chip->mpu_port_saved | 0x01);
2219 pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE, chip->legacy_saved);
2220 pci_write_config_byte(chip->pci, VIA_PNP_CONTROL, chip->legacy_cfg_saved);
2221 } else {
2222 pci_write_config_byte(chip->pci, VIA8233_SPDIF_CTRL, chip->spdif_ctrl_saved);
2223 outb(chip->capture_src_saved[0], chip->port + VIA_REG_CAPTURE_CHANNEL);
2224 outb(chip->capture_src_saved[1], chip->port + VIA_REG_CAPTURE_CHANNEL + 0x10);
2225 }
2226
2227 snd_ac97_resume(chip->ac97);
2228
2229 for (i = 0; i < chip->num_devs; i++)
2230 snd_via82xx_channel_reset(chip, &chip->devs[i]);
2231
2232 snd_power_change_state(card, SNDRV_CTL_POWER_D0);
2233 return 0;
2234 }
2235 #endif /* CONFIG_PM */
2236
2237 static int snd_via82xx_free(struct via82xx *chip)
2238 {
2239 unsigned int i;
2240
2241 if (chip->irq < 0)
2242 goto __end_hw;
2243 /* disable interrupts */
2244 for (i = 0; i < chip->num_devs; i++)
2245 snd_via82xx_channel_reset(chip, &chip->devs[i]);
2246
2247 if (chip->irq >= 0)
2248 free_irq(chip->irq, chip);
2249 __end_hw:
2250 release_and_free_resource(chip->mpu_res);
2251 pci_release_regions(chip->pci);
2252
2253 if (chip->chip_type == TYPE_VIA686) {
2254 snd_via686_free_gameport(chip);
2255 pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE, chip->old_legacy);
2256 pci_write_config_byte(chip->pci, VIA_PNP_CONTROL, chip->old_legacy_cfg);
2257 }
2258 pci_disable_device(chip->pci);
2259 kfree(chip);
2260 return 0;
2261 }
2262
2263 static int snd_via82xx_dev_free(struct snd_device *device)
2264 {
2265 struct via82xx *chip = device->device_data;
2266 return snd_via82xx_free(chip);
2267 }
2268
2269 static int __devinit snd_via82xx_create(struct snd_card *card,
2270 struct pci_dev *pci,
2271 int chip_type,
2272 int revision,
2273 unsigned int ac97_clock,
2274 struct via82xx ** r_via)
2275 {
2276 struct via82xx *chip;
2277 int err;
2278 static struct snd_device_ops ops = {
2279 .dev_free = snd_via82xx_dev_free,
2280 };
2281
2282 if ((err = pci_enable_device(pci)) < 0)
2283 return err;
2284
2285 if ((chip = kzalloc(sizeof(*chip), GFP_KERNEL)) == NULL) {
2286 pci_disable_device(pci);
2287 return -ENOMEM;
2288 }
2289
2290 chip->chip_type = chip_type;
2291 chip->revision = revision;
2292
2293 spin_lock_init(&chip->reg_lock);
2294 spin_lock_init(&chip->rates[0].lock);
2295 spin_lock_init(&chip->rates[1].lock);
2296 chip->card = card;
2297 chip->pci = pci;
2298 chip->irq = -1;
2299
2300 pci_read_config_byte(pci, VIA_FUNC_ENABLE, &chip->old_legacy);
2301 pci_read_config_byte(pci, VIA_PNP_CONTROL, &chip->old_legacy_cfg);
2302 pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE,
2303 chip->old_legacy & ~(VIA_FUNC_ENABLE_SB|VIA_FUNC_ENABLE_FM));
2304
2305 if ((err = pci_request_regions(pci, card->driver)) < 0) {
2306 kfree(chip);
2307 pci_disable_device(pci);
2308 return err;
2309 }
2310 chip->port = pci_resource_start(pci, 0);
2311 if (request_irq(pci->irq,
2312 chip_type == TYPE_VIA8233 ?
2313 snd_via8233_interrupt : snd_via686_interrupt,
2314 IRQF_SHARED,
2315 card->driver, chip)) {
2316 snd_printk(KERN_ERR "unable to grab IRQ %d\n", pci->irq);
2317 snd_via82xx_free(chip);
2318 return -EBUSY;
2319 }
2320 chip->irq = pci->irq;
2321 if (ac97_clock >= 8000 && ac97_clock <= 48000)
2322 chip->ac97_clock = ac97_clock;
2323 synchronize_irq(chip->irq);
2324
2325 if ((err = snd_via82xx_chip_init(chip)) < 0) {
2326 snd_via82xx_free(chip);
2327 return err;
2328 }
2329
2330 if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
2331 snd_via82xx_free(chip);
2332 return err;
2333 }
2334
2335 /* The 8233 ac97 controller does not implement the master bit
2336 * in the pci command register. IMHO this is a violation of the PCI spec.
2337 * We call pci_set_master here because it does not hurt. */
2338 pci_set_master(pci);
2339
2340 snd_card_set_dev(card, &pci->dev);
2341
2342 *r_via = chip;
2343 return 0;
2344 }
2345
2346 struct via823x_info {
2347 int revision;
2348 char *name;
2349 int type;
2350 };
2351 static struct via823x_info via823x_cards[] __devinitdata = {
2352 { VIA_REV_PRE_8233, "VIA 8233-Pre", TYPE_VIA8233 },
2353 { VIA_REV_8233C, "VIA 8233C", TYPE_VIA8233 },
2354 { VIA_REV_8233, "VIA 8233", TYPE_VIA8233 },
2355 { VIA_REV_8233A, "VIA 8233A", TYPE_VIA8233A },
2356 { VIA_REV_8235, "VIA 8235", TYPE_VIA8233 },
2357 { VIA_REV_8237, "VIA 8237", TYPE_VIA8233 },
2358 { VIA_REV_8251, "VIA 8251", TYPE_VIA8233 },
2359 };
2360
2361 /*
2362 * auto detection of DXS channel supports.
2363 */
2364
2365 static struct snd_pci_quirk dxs_whitelist[] __devinitdata = {
2366 SND_PCI_QUIRK(0x1005, 0x4710, "Avance Logic Mobo", VIA_DXS_ENABLE),
2367 SND_PCI_QUIRK(0x1019, 0x0996, "ESC Mobo", VIA_DXS_48K),
2368 SND_PCI_QUIRK(0x1019, 0x0a81, "ECS K7VTA3 v8.0", VIA_DXS_NO_VRA),
2369 SND_PCI_QUIRK(0x1019, 0x0a85, "ECS L7VMM2", VIA_DXS_NO_VRA),
2370 SND_PCI_QUIRK_VENDOR(0x1019, "ESC K8", VIA_DXS_SRC),
2371 SND_PCI_QUIRK(0x1019, 0xaa01, "ESC K8T890-A", VIA_DXS_SRC),
2372 SND_PCI_QUIRK(0x1025, 0x0033, "Acer Inspire 1353LM", VIA_DXS_NO_VRA),
2373 SND_PCI_QUIRK(0x1025, 0x0046, "Acer Aspire 1524 WLMi", VIA_DXS_SRC),
2374 SND_PCI_QUIRK_VENDOR(0x1043, "ASUS A7/A8", VIA_DXS_NO_VRA),
2375 SND_PCI_QUIRK_VENDOR(0x1071, "Diverse Notebook", VIA_DXS_NO_VRA),
2376 SND_PCI_QUIRK(0x10cf, 0x118e, "FSC Laptop", VIA_DXS_ENABLE),
2377 SND_PCI_QUIRK_VENDOR(0x1106, "ASRock", VIA_DXS_SRC),
2378 SND_PCI_QUIRK(0x1297, 0xa231, "Shuttle AK31v2", VIA_DXS_SRC),
2379 SND_PCI_QUIRK(0x1297, 0xa232, "Shuttle", VIA_DXS_SRC),
2380 SND_PCI_QUIRK(0x1297, 0xc160, "Shuttle Sk41G", VIA_DXS_SRC),
2381 SND_PCI_QUIRK(0x1458, 0xa002, "Gigabyte GA-7VAXP", VIA_DXS_ENABLE),
2382 SND_PCI_QUIRK(0x1462, 0x3800, "MSI KT266", VIA_DXS_ENABLE),
2383 SND_PCI_QUIRK(0x1462, 0x7120, "MSI KT4V", VIA_DXS_ENABLE),
2384 SND_PCI_QUIRK(0x1462, 0x7142, "MSI K8MM-V", VIA_DXS_ENABLE),
2385 SND_PCI_QUIRK_VENDOR(0x1462, "MSI Mobo", VIA_DXS_SRC),
2386 SND_PCI_QUIRK(0x147b, 0x1401, "ABIT KD7(-RAID)", VIA_DXS_ENABLE),
2387 SND_PCI_QUIRK(0x147b, 0x1411, "ABIT VA-20", VIA_DXS_ENABLE),
2388 SND_PCI_QUIRK(0x147b, 0x1413, "ABIT KV8 Pro", VIA_DXS_ENABLE),
2389 SND_PCI_QUIRK(0x147b, 0x1415, "ABIT AV8", VIA_DXS_NO_VRA),
2390 SND_PCI_QUIRK(0x14ff, 0x0403, "Twinhead mobo", VIA_DXS_ENABLE),
2391 SND_PCI_QUIRK(0x14ff, 0x0408, "Twinhead laptop", VIA_DXS_SRC),
2392 SND_PCI_QUIRK(0x1558, 0x4701, "Clevo D470", VIA_DXS_SRC),
2393 SND_PCI_QUIRK(0x1584, 0x8120, "Diverse Laptop", VIA_DXS_ENABLE),
2394 SND_PCI_QUIRK(0x1584, 0x8123, "Targa/Uniwill", VIA_DXS_NO_VRA),
2395 SND_PCI_QUIRK(0x161f, 0x202b, "Amira Notebook", VIA_DXS_NO_VRA),
2396 SND_PCI_QUIRK(0x161f, 0x2032, "m680x machines", VIA_DXS_48K),
2397 SND_PCI_QUIRK(0x1631, 0xe004, "PB EasyNote 3174", VIA_DXS_ENABLE),
2398 SND_PCI_QUIRK(0x1695, 0x3005, "EPoX EP-8K9A", VIA_DXS_ENABLE),
2399 SND_PCI_QUIRK_VENDOR(0x1695, "EPoX mobo", VIA_DXS_SRC),
2400 SND_PCI_QUIRK_VENDOR(0x16f3, "Jetway K8", VIA_DXS_SRC),
2401 SND_PCI_QUIRK_VENDOR(0x1734, "FSC Laptop", VIA_DXS_SRC),
2402 SND_PCI_QUIRK(0x1849, 0x3059, "ASRock K7VM2", VIA_DXS_NO_VRA),
2403 SND_PCI_QUIRK_VENDOR(0x1849, "ASRock mobo", VIA_DXS_SRC),
2404 SND_PCI_QUIRK(0x1919, 0x200a, "Soltek SL-K8", VIA_DXS_NO_VRA),
2405 SND_PCI_QUIRK(0x4005, 0x4710, "MSI K7T266", VIA_DXS_SRC),
2406 { } /* terminator */
2407 };
2408
2409 static int __devinit check_dxs_list(struct pci_dev *pci, int revision)
2410 {
2411 const struct snd_pci_quirk *w;
2412
2413 w = snd_pci_quirk_lookup(pci, dxs_whitelist);
2414 if (w) {
2415 snd_printdd(KERN_INFO "via82xx: DXS white list for %s found\n",
2416 w->name);
2417 return w->value;
2418 }
2419
2420 /* for newer revision, default to DXS_SRC */
2421 if (revision >= VIA_REV_8235)
2422 return VIA_DXS_SRC;
2423
2424 /*
2425 * not detected, try 48k rate only to be sure.
2426 */
2427 printk(KERN_INFO "via82xx: Assuming DXS channels with 48k fixed sample rate.\n");
2428 printk(KERN_INFO " Please try dxs_support=5 option\n");
2429 printk(KERN_INFO " and report if it works on your machine.\n");
2430 printk(KERN_INFO " For more details, read ALSA-Configuration.txt.\n");
2431 return VIA_DXS_48K;
2432 };
2433
2434 static int __devinit snd_via82xx_probe(struct pci_dev *pci,
2435 const struct pci_device_id *pci_id)
2436 {
2437 struct snd_card *card;
2438 struct via82xx *chip;
2439 int chip_type = 0, card_type;
2440 unsigned int i;
2441 int err;
2442
2443 err = snd_card_create(index, id, THIS_MODULE, 0, &card);
2444 if (err < 0)
2445 return err;
2446
2447 card_type = pci_id->driver_data;
2448 switch (card_type) {
2449 case TYPE_CARD_VIA686:
2450 strcpy(card->driver, "VIA686A");
2451 sprintf(card->shortname, "VIA 82C686A/B rev%x", pci->revision);
2452 chip_type = TYPE_VIA686;
2453 break;
2454 case TYPE_CARD_VIA8233:
2455 chip_type = TYPE_VIA8233;
2456 sprintf(card->shortname, "VIA 823x rev%x", pci->revision);
2457 for (i = 0; i < ARRAY_SIZE(via823x_cards); i++) {
2458 if (pci->revision == via823x_cards[i].revision) {
2459 chip_type = via823x_cards[i].type;
2460 strcpy(card->shortname, via823x_cards[i].name);
2461 break;
2462 }
2463 }
2464 if (chip_type != TYPE_VIA8233A) {
2465 if (dxs_support == VIA_DXS_AUTO)
2466 dxs_support = check_dxs_list(pci, pci->revision);
2467 /* force to use VIA8233 or 8233A model according to
2468 * dxs_support module option
2469 */
2470 if (dxs_support == VIA_DXS_DISABLE)
2471 chip_type = TYPE_VIA8233A;
2472 else
2473 chip_type = TYPE_VIA8233;
2474 }
2475 if (chip_type == TYPE_VIA8233A)
2476 strcpy(card->driver, "VIA8233A");
2477 else if (pci->revision >= VIA_REV_8237)
2478 strcpy(card->driver, "VIA8237"); /* no slog assignment */
2479 else
2480 strcpy(card->driver, "VIA8233");
2481 break;
2482 default:
2483 snd_printk(KERN_ERR "invalid card type %d\n", card_type);
2484 err = -EINVAL;
2485 goto __error;
2486 }
2487
2488 if ((err = snd_via82xx_create(card, pci, chip_type, pci->revision,
2489 ac97_clock, &chip)) < 0)
2490 goto __error;
2491 card->private_data = chip;
2492 if ((err = snd_via82xx_mixer_new(chip, ac97_quirk)) < 0)
2493 goto __error;
2494
2495 if (chip_type == TYPE_VIA686) {
2496 if ((err = snd_via686_pcm_new(chip)) < 0 ||
2497 (err = snd_via686_init_misc(chip)) < 0)
2498 goto __error;
2499 } else {
2500 if (chip_type == TYPE_VIA8233A) {
2501 if ((err = snd_via8233a_pcm_new(chip)) < 0)
2502 goto __error;
2503 // chip->dxs_fixed = 1; /* FIXME: use 48k for DXS #3? */
2504 } else {
2505 if ((err = snd_via8233_pcm_new(chip)) < 0)
2506 goto __error;
2507 if (dxs_support == VIA_DXS_48K)
2508 chip->dxs_fixed = 1;
2509 else if (dxs_support == VIA_DXS_NO_VRA)
2510 chip->no_vra = 1;
2511 else if (dxs_support == VIA_DXS_SRC) {
2512 chip->no_vra = 1;
2513 chip->dxs_src = 1;
2514 }
2515 }
2516 if ((err = snd_via8233_init_misc(chip)) < 0)
2517 goto __error;
2518 }
2519
2520 /* disable interrupts */
2521 for (i = 0; i < chip->num_devs; i++)
2522 snd_via82xx_channel_reset(chip, &chip->devs[i]);
2523
2524 snprintf(card->longname, sizeof(card->longname),
2525 "%s with %s at %#lx, irq %d", card->shortname,
2526 snd_ac97_get_short_name(chip->ac97), chip->port, chip->irq);
2527
2528 snd_via82xx_proc_init(chip);
2529
2530 if ((err = snd_card_register(card)) < 0) {
2531 snd_card_free(card);
2532 return err;
2533 }
2534 pci_set_drvdata(pci, card);
2535 return 0;
2536
2537 __error:
2538 snd_card_free(card);
2539 return err;
2540 }
2541
2542 static void __devexit snd_via82xx_remove(struct pci_dev *pci)
2543 {
2544 snd_card_free(pci_get_drvdata(pci));
2545 pci_set_drvdata(pci, NULL);
2546 }
2547
2548 static struct pci_driver driver = {
2549 .name = "VIA 82xx Audio",
2550 .id_table = snd_via82xx_ids,
2551 .probe = snd_via82xx_probe,
2552 .remove = __devexit_p(snd_via82xx_remove),
2553 #ifdef CONFIG_PM
2554 .suspend = snd_via82xx_suspend,
2555 .resume = snd_via82xx_resume,
2556 #endif
2557 };
2558
2559 static int __init alsa_card_via82xx_init(void)
2560 {
2561 return pci_register_driver(&driver);
2562 }
2563
2564 static void __exit alsa_card_via82xx_exit(void)
2565 {
2566 pci_unregister_driver(&driver);
2567 }
2568
2569 module_init(alsa_card_via82xx_init)
2570 module_exit(alsa_card_via82xx_exit)
Support for the Chinese Samsung S3C2440 based development boards