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drivers: power: report battery voltage in AOSP compatible format
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / sound / pci / via82xx.c
1 /*
2 * ALSA driver for VIA VT82xx (South Bridge)
3 *
4 * VT82C686A/B/C, VT8233A/C, VT8235
5 *
6 * Copyright (c) 2000 Jaroslav Kysela <perex@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/module.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 bool joystick;
84 #endif
85 static int ac97_clock = 48000;
86 static char *ac97_quirk;
87 static int dxs_support;
88 static int dxs_init_volume = 31;
89 static int nodelay;
90
91 module_param(index, int, 0444);
92 MODULE_PARM_DESC(index, "Index value for VIA 82xx bridge.");
93 module_param(id, charp, 0444);
94 MODULE_PARM_DESC(id, "ID string for VIA 82xx bridge.");
95 module_param(mpu_port, long, 0444);
96 MODULE_PARM_DESC(mpu_port, "MPU-401 port. (VT82C686x only)");
97 #ifdef SUPPORT_JOYSTICK
98 module_param(joystick, bool, 0444);
99 MODULE_PARM_DESC(joystick, "Enable joystick. (VT82C686x only)");
100 #endif
101 module_param(ac97_clock, int, 0444);
102 MODULE_PARM_DESC(ac97_clock, "AC'97 codec clock (default 48000Hz).");
103 module_param(ac97_quirk, charp, 0444);
104 MODULE_PARM_DESC(ac97_quirk, "AC'97 workaround for strange hardware.");
105 module_param(dxs_support, int, 0444);
106 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)");
107 module_param(dxs_init_volume, int, 0644);
108 MODULE_PARM_DESC(dxs_init_volume, "initial DXS volume (0-31)");
109 module_param(nodelay, int, 0444);
110 MODULE_PARM_DESC(nodelay, "Disable 500ms init delay");
111
112 /* just for backward compatibility */
113 static bool enable;
114 module_param(enable, bool, 0444);
115
116
117 /* revision numbers for via686 */
118 #define VIA_REV_686_A 0x10
119 #define VIA_REV_686_B 0x11
120 #define VIA_REV_686_C 0x12
121 #define VIA_REV_686_D 0x13
122 #define VIA_REV_686_E 0x14
123 #define VIA_REV_686_H 0x20
124
125 /* revision numbers for via8233 */
126 #define VIA_REV_PRE_8233 0x10 /* not in market */
127 #define VIA_REV_8233C 0x20 /* 2 rec, 4 pb, 1 multi-pb */
128 #define VIA_REV_8233 0x30 /* 2 rec, 4 pb, 1 multi-pb, spdif */
129 #define VIA_REV_8233A 0x40 /* 1 rec, 1 multi-pb, spdf */
130 #define VIA_REV_8235 0x50 /* 2 rec, 4 pb, 1 multi-pb, spdif */
131 #define VIA_REV_8237 0x60
132 #define VIA_REV_8251 0x70
133
134 /*
135 * Direct registers
136 */
137
138 #define VIAREG(via, x) ((via)->port + VIA_REG_##x)
139 #define VIADEV_REG(viadev, x) ((viadev)->port + VIA_REG_##x)
140
141 /* common offsets */
142 #define VIA_REG_OFFSET_STATUS 0x00 /* byte - channel status */
143 #define VIA_REG_STAT_ACTIVE 0x80 /* RO */
144 #define VIA8233_SHADOW_STAT_ACTIVE 0x08 /* RO */
145 #define VIA_REG_STAT_PAUSED 0x40 /* RO */
146 #define VIA_REG_STAT_TRIGGER_QUEUED 0x08 /* RO */
147 #define VIA_REG_STAT_STOPPED 0x04 /* RWC */
148 #define VIA_REG_STAT_EOL 0x02 /* RWC */
149 #define VIA_REG_STAT_FLAG 0x01 /* RWC */
150 #define VIA_REG_OFFSET_CONTROL 0x01 /* byte - channel control */
151 #define VIA_REG_CTRL_START 0x80 /* WO */
152 #define VIA_REG_CTRL_TERMINATE 0x40 /* WO */
153 #define VIA_REG_CTRL_AUTOSTART 0x20
154 #define VIA_REG_CTRL_PAUSE 0x08 /* RW */
155 #define VIA_REG_CTRL_INT_STOP 0x04
156 #define VIA_REG_CTRL_INT_EOL 0x02
157 #define VIA_REG_CTRL_INT_FLAG 0x01
158 #define VIA_REG_CTRL_RESET 0x01 /* RW - probably reset? undocumented */
159 #define VIA_REG_CTRL_INT (VIA_REG_CTRL_INT_FLAG | VIA_REG_CTRL_INT_EOL | VIA_REG_CTRL_AUTOSTART)
160 #define VIA_REG_OFFSET_TYPE 0x02 /* byte - channel type (686 only) */
161 #define VIA_REG_TYPE_AUTOSTART 0x80 /* RW - autostart at EOL */
162 #define VIA_REG_TYPE_16BIT 0x20 /* RW */
163 #define VIA_REG_TYPE_STEREO 0x10 /* RW */
164 #define VIA_REG_TYPE_INT_LLINE 0x00
165 #define VIA_REG_TYPE_INT_LSAMPLE 0x04
166 #define VIA_REG_TYPE_INT_LESSONE 0x08
167 #define VIA_REG_TYPE_INT_MASK 0x0c
168 #define VIA_REG_TYPE_INT_EOL 0x02
169 #define VIA_REG_TYPE_INT_FLAG 0x01
170 #define VIA_REG_OFFSET_TABLE_PTR 0x04 /* dword - channel table pointer */
171 #define VIA_REG_OFFSET_CURR_PTR 0x04 /* dword - channel current pointer */
172 #define VIA_REG_OFFSET_STOP_IDX 0x08 /* dword - stop index, channel type, sample rate */
173 #define VIA8233_REG_TYPE_16BIT 0x00200000 /* RW */
174 #define VIA8233_REG_TYPE_STEREO 0x00100000 /* RW */
175 #define VIA_REG_OFFSET_CURR_COUNT 0x0c /* dword - channel current count (24 bit) */
176 #define VIA_REG_OFFSET_CURR_INDEX 0x0f /* byte - channel current index (for via8233 only) */
177
178 #define DEFINE_VIA_REGSET(name,val) \
179 enum {\
180 VIA_REG_##name##_STATUS = (val),\
181 VIA_REG_##name##_CONTROL = (val) + 0x01,\
182 VIA_REG_##name##_TYPE = (val) + 0x02,\
183 VIA_REG_##name##_TABLE_PTR = (val) + 0x04,\
184 VIA_REG_##name##_CURR_PTR = (val) + 0x04,\
185 VIA_REG_##name##_STOP_IDX = (val) + 0x08,\
186 VIA_REG_##name##_CURR_COUNT = (val) + 0x0c,\
187 }
188
189 /* playback block */
190 DEFINE_VIA_REGSET(PLAYBACK, 0x00);
191 DEFINE_VIA_REGSET(CAPTURE, 0x10);
192 DEFINE_VIA_REGSET(FM, 0x20);
193
194 /* AC'97 */
195 #define VIA_REG_AC97 0x80 /* dword */
196 #define VIA_REG_AC97_CODEC_ID_MASK (3<<30)
197 #define VIA_REG_AC97_CODEC_ID_SHIFT 30
198 #define VIA_REG_AC97_CODEC_ID_PRIMARY 0x00
199 #define VIA_REG_AC97_CODEC_ID_SECONDARY 0x01
200 #define VIA_REG_AC97_SECONDARY_VALID (1<<27)
201 #define VIA_REG_AC97_PRIMARY_VALID (1<<25)
202 #define VIA_REG_AC97_BUSY (1<<24)
203 #define VIA_REG_AC97_READ (1<<23)
204 #define VIA_REG_AC97_CMD_SHIFT 16
205 #define VIA_REG_AC97_CMD_MASK 0x7e
206 #define VIA_REG_AC97_DATA_SHIFT 0
207 #define VIA_REG_AC97_DATA_MASK 0xffff
208
209 #define VIA_REG_SGD_SHADOW 0x84 /* dword */
210 /* via686 */
211 #define VIA_REG_SGD_STAT_PB_FLAG (1<<0)
212 #define VIA_REG_SGD_STAT_CP_FLAG (1<<1)
213 #define VIA_REG_SGD_STAT_FM_FLAG (1<<2)
214 #define VIA_REG_SGD_STAT_PB_EOL (1<<4)
215 #define VIA_REG_SGD_STAT_CP_EOL (1<<5)
216 #define VIA_REG_SGD_STAT_FM_EOL (1<<6)
217 #define VIA_REG_SGD_STAT_PB_STOP (1<<8)
218 #define VIA_REG_SGD_STAT_CP_STOP (1<<9)
219 #define VIA_REG_SGD_STAT_FM_STOP (1<<10)
220 #define VIA_REG_SGD_STAT_PB_ACTIVE (1<<12)
221 #define VIA_REG_SGD_STAT_CP_ACTIVE (1<<13)
222 #define VIA_REG_SGD_STAT_FM_ACTIVE (1<<14)
223 /* via8233 */
224 #define VIA8233_REG_SGD_STAT_FLAG (1<<0)
225 #define VIA8233_REG_SGD_STAT_EOL (1<<1)
226 #define VIA8233_REG_SGD_STAT_STOP (1<<2)
227 #define VIA8233_REG_SGD_STAT_ACTIVE (1<<3)
228 #define VIA8233_INTR_MASK(chan) ((VIA8233_REG_SGD_STAT_FLAG|VIA8233_REG_SGD_STAT_EOL) << ((chan) * 4))
229 #define VIA8233_REG_SGD_CHAN_SDX 0
230 #define VIA8233_REG_SGD_CHAN_MULTI 4
231 #define VIA8233_REG_SGD_CHAN_REC 6
232 #define VIA8233_REG_SGD_CHAN_REC1 7
233
234 #define VIA_REG_GPI_STATUS 0x88
235 #define VIA_REG_GPI_INTR 0x8c
236
237 /* multi-channel and capture registers for via8233 */
238 DEFINE_VIA_REGSET(MULTPLAY, 0x40);
239 DEFINE_VIA_REGSET(CAPTURE_8233, 0x60);
240
241 /* via8233-specific registers */
242 #define VIA_REG_OFS_PLAYBACK_VOLUME_L 0x02 /* byte */
243 #define VIA_REG_OFS_PLAYBACK_VOLUME_R 0x03 /* byte */
244 #define VIA_REG_OFS_MULTPLAY_FORMAT 0x02 /* byte - format and channels */
245 #define VIA_REG_MULTPLAY_FMT_8BIT 0x00
246 #define VIA_REG_MULTPLAY_FMT_16BIT 0x80
247 #define VIA_REG_MULTPLAY_FMT_CH_MASK 0x70 /* # channels << 4 (valid = 1,2,4,6) */
248 #define VIA_REG_OFS_CAPTURE_FIFO 0x02 /* byte - bit 6 = fifo enable */
249 #define VIA_REG_CAPTURE_FIFO_ENABLE 0x40
250
251 #define VIA_DXS_MAX_VOLUME 31 /* max. volume (attenuation) of reg 0x32/33 */
252
253 #define VIA_REG_CAPTURE_CHANNEL 0x63 /* byte - input select */
254 #define VIA_REG_CAPTURE_CHANNEL_MIC 0x4
255 #define VIA_REG_CAPTURE_CHANNEL_LINE 0
256 #define VIA_REG_CAPTURE_SELECT_CODEC 0x03 /* recording source codec (0 = primary) */
257
258 #define VIA_TBL_BIT_FLAG 0x40000000
259 #define VIA_TBL_BIT_EOL 0x80000000
260
261 /* pci space */
262 #define VIA_ACLINK_STAT 0x40
263 #define VIA_ACLINK_C11_READY 0x20
264 #define VIA_ACLINK_C10_READY 0x10
265 #define VIA_ACLINK_C01_READY 0x04 /* secondary codec ready */
266 #define VIA_ACLINK_LOWPOWER 0x02 /* low-power state */
267 #define VIA_ACLINK_C00_READY 0x01 /* primary codec ready */
268 #define VIA_ACLINK_CTRL 0x41
269 #define VIA_ACLINK_CTRL_ENABLE 0x80 /* 0: disable, 1: enable */
270 #define VIA_ACLINK_CTRL_RESET 0x40 /* 0: assert, 1: de-assert */
271 #define VIA_ACLINK_CTRL_SYNC 0x20 /* 0: release SYNC, 1: force SYNC hi */
272 #define VIA_ACLINK_CTRL_SDO 0x10 /* 0: release SDO, 1: force SDO hi */
273 #define VIA_ACLINK_CTRL_VRA 0x08 /* 0: disable VRA, 1: enable VRA */
274 #define VIA_ACLINK_CTRL_PCM 0x04 /* 0: disable PCM, 1: enable PCM */
275 #define VIA_ACLINK_CTRL_FM 0x02 /* via686 only */
276 #define VIA_ACLINK_CTRL_SB 0x01 /* via686 only */
277 #define VIA_ACLINK_CTRL_INIT (VIA_ACLINK_CTRL_ENABLE|\
278 VIA_ACLINK_CTRL_RESET|\
279 VIA_ACLINK_CTRL_PCM|\
280 VIA_ACLINK_CTRL_VRA)
281 #define VIA_FUNC_ENABLE 0x42
282 #define VIA_FUNC_MIDI_PNP 0x80 /* FIXME: it's 0x40 in the datasheet! */
283 #define VIA_FUNC_MIDI_IRQMASK 0x40 /* FIXME: not documented! */
284 #define VIA_FUNC_RX2C_WRITE 0x20
285 #define VIA_FUNC_SB_FIFO_EMPTY 0x10
286 #define VIA_FUNC_ENABLE_GAME 0x08
287 #define VIA_FUNC_ENABLE_FM 0x04
288 #define VIA_FUNC_ENABLE_MIDI 0x02
289 #define VIA_FUNC_ENABLE_SB 0x01
290 #define VIA_PNP_CONTROL 0x43
291 #define VIA_FM_NMI_CTRL 0x48
292 #define VIA8233_VOLCHG_CTRL 0x48
293 #define VIA8233_SPDIF_CTRL 0x49
294 #define VIA8233_SPDIF_DX3 0x08
295 #define VIA8233_SPDIF_SLOT_MASK 0x03
296 #define VIA8233_SPDIF_SLOT_1011 0x00
297 #define VIA8233_SPDIF_SLOT_34 0x01
298 #define VIA8233_SPDIF_SLOT_78 0x02
299 #define VIA8233_SPDIF_SLOT_69 0x03
300
301 /*
302 */
303
304 #define VIA_DXS_AUTO 0
305 #define VIA_DXS_ENABLE 1
306 #define VIA_DXS_DISABLE 2
307 #define VIA_DXS_48K 3
308 #define VIA_DXS_NO_VRA 4
309 #define VIA_DXS_SRC 5
310
311
312 /*
313 * pcm stream
314 */
315
316 struct snd_via_sg_table {
317 unsigned int offset;
318 unsigned int size;
319 } ;
320
321 #define VIA_TABLE_SIZE 255
322 #define VIA_MAX_BUFSIZE (1<<24)
323
324 struct viadev {
325 unsigned int reg_offset;
326 unsigned long port;
327 int direction; /* playback = 0, capture = 1 */
328 struct snd_pcm_substream *substream;
329 int running;
330 unsigned int tbl_entries; /* # descriptors */
331 struct snd_dma_buffer table;
332 struct snd_via_sg_table *idx_table;
333 /* for recovery from the unexpected pointer */
334 unsigned int lastpos;
335 unsigned int fragsize;
336 unsigned int bufsize;
337 unsigned int bufsize2;
338 int hwptr_done; /* processed frame position in the buffer */
339 int in_interrupt;
340 int shadow_shift;
341 };
342
343
344 enum { TYPE_CARD_VIA686 = 1, TYPE_CARD_VIA8233 };
345 enum { TYPE_VIA686, TYPE_VIA8233, TYPE_VIA8233A };
346
347 #define VIA_MAX_DEVS 7 /* 4 playback, 1 multi, 2 capture */
348
349 struct via_rate_lock {
350 spinlock_t lock;
351 int rate;
352 int used;
353 };
354
355 struct via82xx {
356 int irq;
357
358 unsigned long port;
359 struct resource *mpu_res;
360 int chip_type;
361 unsigned char revision;
362
363 unsigned char old_legacy;
364 unsigned char old_legacy_cfg;
365 #ifdef CONFIG_PM_SLEEP
366 unsigned char legacy_saved;
367 unsigned char legacy_cfg_saved;
368 unsigned char spdif_ctrl_saved;
369 unsigned char capture_src_saved[2];
370 unsigned int mpu_port_saved;
371 #endif
372
373 unsigned char playback_volume[4][2]; /* for VIA8233/C/8235; default = 0 */
374 unsigned char playback_volume_c[2]; /* for VIA8233/C/8235; default = 0 */
375
376 unsigned int intr_mask; /* SGD_SHADOW mask to check interrupts */
377
378 struct pci_dev *pci;
379 struct snd_card *card;
380
381 unsigned int num_devs;
382 unsigned int playback_devno, multi_devno, capture_devno;
383 struct viadev devs[VIA_MAX_DEVS];
384 struct via_rate_lock rates[2]; /* playback and capture */
385 unsigned int dxs_fixed: 1; /* DXS channel accepts only 48kHz */
386 unsigned int no_vra: 1; /* no need to set VRA on DXS channels */
387 unsigned int dxs_src: 1; /* use full SRC capabilities of DXS */
388 unsigned int spdif_on: 1; /* only spdif rates work to external DACs */
389
390 struct snd_pcm *pcms[2];
391 struct snd_rawmidi *rmidi;
392 struct snd_kcontrol *dxs_controls[4];
393
394 struct snd_ac97_bus *ac97_bus;
395 struct snd_ac97 *ac97;
396 unsigned int ac97_clock;
397 unsigned int ac97_secondary; /* secondary AC'97 codec is present */
398
399 spinlock_t reg_lock;
400 struct snd_info_entry *proc_entry;
401
402 #ifdef SUPPORT_JOYSTICK
403 struct gameport *gameport;
404 #endif
405 };
406
407 static DEFINE_PCI_DEVICE_TABLE(snd_via82xx_ids) = {
408 /* 0x1106, 0x3058 */
409 { PCI_VDEVICE(VIA, PCI_DEVICE_ID_VIA_82C686_5), TYPE_CARD_VIA686, }, /* 686A */
410 /* 0x1106, 0x3059 */
411 { PCI_VDEVICE(VIA, PCI_DEVICE_ID_VIA_8233_5), TYPE_CARD_VIA8233, }, /* VT8233 */
412 { 0, }
413 };
414
415 MODULE_DEVICE_TABLE(pci, snd_via82xx_ids);
416
417 /*
418 */
419
420 /*
421 * allocate and initialize the descriptor buffers
422 * periods = number of periods
423 * fragsize = period size in bytes
424 */
425 static int build_via_table(struct viadev *dev, struct snd_pcm_substream *substream,
426 struct pci_dev *pci,
427 unsigned int periods, unsigned int fragsize)
428 {
429 unsigned int i, idx, ofs, rest;
430 struct via82xx *chip = snd_pcm_substream_chip(substream);
431
432 if (dev->table.area == NULL) {
433 /* the start of each lists must be aligned to 8 bytes,
434 * but the kernel pages are much bigger, so we don't care
435 */
436 if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(chip->pci),
437 PAGE_ALIGN(VIA_TABLE_SIZE * 2 * 8),
438 &dev->table) < 0)
439 return -ENOMEM;
440 }
441 if (! dev->idx_table) {
442 dev->idx_table = kmalloc(sizeof(*dev->idx_table) * VIA_TABLE_SIZE, GFP_KERNEL);
443 if (! dev->idx_table)
444 return -ENOMEM;
445 }
446
447 /* fill the entries */
448 idx = 0;
449 ofs = 0;
450 for (i = 0; i < periods; i++) {
451 rest = fragsize;
452 /* fill descriptors for a period.
453 * a period can be split to several descriptors if it's
454 * over page boundary.
455 */
456 do {
457 unsigned int r;
458 unsigned int flag;
459 unsigned int addr;
460
461 if (idx >= VIA_TABLE_SIZE) {
462 snd_printk(KERN_ERR "via82xx: too much table size!\n");
463 return -EINVAL;
464 }
465 addr = snd_pcm_sgbuf_get_addr(substream, ofs);
466 ((u32 *)dev->table.area)[idx << 1] = cpu_to_le32(addr);
467 r = snd_pcm_sgbuf_get_chunk_size(substream, ofs, rest);
468 rest -= r;
469 if (! rest) {
470 if (i == periods - 1)
471 flag = VIA_TBL_BIT_EOL; /* buffer boundary */
472 else
473 flag = VIA_TBL_BIT_FLAG; /* period boundary */
474 } else
475 flag = 0; /* period continues to the next */
476 /*
477 printk(KERN_DEBUG "via: tbl %d: at %d size %d "
478 "(rest %d)\n", idx, ofs, r, rest);
479 */
480 ((u32 *)dev->table.area)[(idx<<1) + 1] = cpu_to_le32(r | flag);
481 dev->idx_table[idx].offset = ofs;
482 dev->idx_table[idx].size = r;
483 ofs += r;
484 idx++;
485 } while (rest > 0);
486 }
487 dev->tbl_entries = idx;
488 dev->bufsize = periods * fragsize;
489 dev->bufsize2 = dev->bufsize / 2;
490 dev->fragsize = fragsize;
491 return 0;
492 }
493
494
495 static int clean_via_table(struct viadev *dev, struct snd_pcm_substream *substream,
496 struct pci_dev *pci)
497 {
498 if (dev->table.area) {
499 snd_dma_free_pages(&dev->table);
500 dev->table.area = NULL;
501 }
502 kfree(dev->idx_table);
503 dev->idx_table = NULL;
504 return 0;
505 }
506
507 /*
508 * Basic I/O
509 */
510
511 static inline unsigned int snd_via82xx_codec_xread(struct via82xx *chip)
512 {
513 return inl(VIAREG(chip, AC97));
514 }
515
516 static inline void snd_via82xx_codec_xwrite(struct via82xx *chip, unsigned int val)
517 {
518 outl(val, VIAREG(chip, AC97));
519 }
520
521 static int snd_via82xx_codec_ready(struct via82xx *chip, int secondary)
522 {
523 unsigned int timeout = 1000; /* 1ms */
524 unsigned int val;
525
526 while (timeout-- > 0) {
527 udelay(1);
528 if (!((val = snd_via82xx_codec_xread(chip)) & VIA_REG_AC97_BUSY))
529 return val & 0xffff;
530 }
531 snd_printk(KERN_ERR "codec_ready: codec %i is not ready [0x%x]\n",
532 secondary, snd_via82xx_codec_xread(chip));
533 return -EIO;
534 }
535
536 static int snd_via82xx_codec_valid(struct via82xx *chip, int secondary)
537 {
538 unsigned int timeout = 1000; /* 1ms */
539 unsigned int val, val1;
540 unsigned int stat = !secondary ? VIA_REG_AC97_PRIMARY_VALID :
541 VIA_REG_AC97_SECONDARY_VALID;
542
543 while (timeout-- > 0) {
544 val = snd_via82xx_codec_xread(chip);
545 val1 = val & (VIA_REG_AC97_BUSY | stat);
546 if (val1 == stat)
547 return val & 0xffff;
548 udelay(1);
549 }
550 return -EIO;
551 }
552
553 static void snd_via82xx_codec_wait(struct snd_ac97 *ac97)
554 {
555 struct via82xx *chip = ac97->private_data;
556 int err;
557 err = snd_via82xx_codec_ready(chip, ac97->num);
558 /* here we need to wait fairly for long time.. */
559 if (!nodelay)
560 msleep(500);
561 }
562
563 static void snd_via82xx_codec_write(struct snd_ac97 *ac97,
564 unsigned short reg,
565 unsigned short val)
566 {
567 struct via82xx *chip = ac97->private_data;
568 unsigned int xval;
569
570 xval = !ac97->num ? VIA_REG_AC97_CODEC_ID_PRIMARY : VIA_REG_AC97_CODEC_ID_SECONDARY;
571 xval <<= VIA_REG_AC97_CODEC_ID_SHIFT;
572 xval |= reg << VIA_REG_AC97_CMD_SHIFT;
573 xval |= val << VIA_REG_AC97_DATA_SHIFT;
574 snd_via82xx_codec_xwrite(chip, xval);
575 snd_via82xx_codec_ready(chip, ac97->num);
576 }
577
578 static unsigned short snd_via82xx_codec_read(struct snd_ac97 *ac97, unsigned short reg)
579 {
580 struct via82xx *chip = ac97->private_data;
581 unsigned int xval, val = 0xffff;
582 int again = 0;
583
584 xval = ac97->num << VIA_REG_AC97_CODEC_ID_SHIFT;
585 xval |= ac97->num ? VIA_REG_AC97_SECONDARY_VALID : VIA_REG_AC97_PRIMARY_VALID;
586 xval |= VIA_REG_AC97_READ;
587 xval |= (reg & 0x7f) << VIA_REG_AC97_CMD_SHIFT;
588 while (1) {
589 if (again++ > 3) {
590 snd_printk(KERN_ERR "codec_read: codec %i is not valid [0x%x]\n",
591 ac97->num, snd_via82xx_codec_xread(chip));
592 return 0xffff;
593 }
594 snd_via82xx_codec_xwrite(chip, xval);
595 udelay (20);
596 if (snd_via82xx_codec_valid(chip, ac97->num) >= 0) {
597 udelay(25);
598 val = snd_via82xx_codec_xread(chip);
599 break;
600 }
601 }
602 return val & 0xffff;
603 }
604
605 static void snd_via82xx_channel_reset(struct via82xx *chip, struct viadev *viadev)
606 {
607 outb(VIA_REG_CTRL_PAUSE | VIA_REG_CTRL_TERMINATE | VIA_REG_CTRL_RESET,
608 VIADEV_REG(viadev, OFFSET_CONTROL));
609 inb(VIADEV_REG(viadev, OFFSET_CONTROL));
610 udelay(50);
611 /* disable interrupts */
612 outb(0x00, VIADEV_REG(viadev, OFFSET_CONTROL));
613 /* clear interrupts */
614 outb(0x03, VIADEV_REG(viadev, OFFSET_STATUS));
615 outb(0x00, VIADEV_REG(viadev, OFFSET_TYPE)); /* for via686 */
616 // outl(0, VIADEV_REG(viadev, OFFSET_CURR_PTR));
617 viadev->lastpos = 0;
618 viadev->hwptr_done = 0;
619 }
620
621
622 /*
623 * Interrupt handler
624 * Used for 686 and 8233A
625 */
626 static irqreturn_t snd_via686_interrupt(int irq, void *dev_id)
627 {
628 struct via82xx *chip = dev_id;
629 unsigned int status;
630 unsigned int i;
631
632 status = inl(VIAREG(chip, SGD_SHADOW));
633 if (! (status & chip->intr_mask)) {
634 if (chip->rmidi)
635 /* check mpu401 interrupt */
636 return snd_mpu401_uart_interrupt(irq, chip->rmidi->private_data);
637 return IRQ_NONE;
638 }
639
640 /* check status for each stream */
641 spin_lock(&chip->reg_lock);
642 for (i = 0; i < chip->num_devs; i++) {
643 struct viadev *viadev = &chip->devs[i];
644 unsigned char c_status = inb(VIADEV_REG(viadev, OFFSET_STATUS));
645 if (! (c_status & (VIA_REG_STAT_EOL|VIA_REG_STAT_FLAG|VIA_REG_STAT_STOPPED)))
646 continue;
647 if (viadev->substream && viadev->running) {
648 /*
649 * Update hwptr_done based on 'period elapsed'
650 * interrupts. We'll use it, when the chip returns 0
651 * for OFFSET_CURR_COUNT.
652 */
653 if (c_status & VIA_REG_STAT_EOL)
654 viadev->hwptr_done = 0;
655 else
656 viadev->hwptr_done += viadev->fragsize;
657 viadev->in_interrupt = c_status;
658 spin_unlock(&chip->reg_lock);
659 snd_pcm_period_elapsed(viadev->substream);
660 spin_lock(&chip->reg_lock);
661 viadev->in_interrupt = 0;
662 }
663 outb(c_status, VIADEV_REG(viadev, OFFSET_STATUS)); /* ack */
664 }
665 spin_unlock(&chip->reg_lock);
666 return IRQ_HANDLED;
667 }
668
669 /*
670 * Interrupt handler
671 */
672 static irqreturn_t snd_via8233_interrupt(int irq, void *dev_id)
673 {
674 struct via82xx *chip = dev_id;
675 unsigned int status;
676 unsigned int i;
677 int irqreturn = 0;
678
679 /* check status for each stream */
680 spin_lock(&chip->reg_lock);
681 status = inl(VIAREG(chip, SGD_SHADOW));
682
683 for (i = 0; i < chip->num_devs; i++) {
684 struct viadev *viadev = &chip->devs[i];
685 struct snd_pcm_substream *substream;
686 unsigned char c_status, shadow_status;
687
688 shadow_status = (status >> viadev->shadow_shift) &
689 (VIA8233_SHADOW_STAT_ACTIVE|VIA_REG_STAT_EOL|
690 VIA_REG_STAT_FLAG);
691 c_status = shadow_status & (VIA_REG_STAT_EOL|VIA_REG_STAT_FLAG);
692 if (!c_status)
693 continue;
694
695 substream = viadev->substream;
696 if (substream && viadev->running) {
697 /*
698 * Update hwptr_done based on 'period elapsed'
699 * interrupts. We'll use it, when the chip returns 0
700 * for OFFSET_CURR_COUNT.
701 */
702 if (c_status & VIA_REG_STAT_EOL)
703 viadev->hwptr_done = 0;
704 else
705 viadev->hwptr_done += viadev->fragsize;
706 viadev->in_interrupt = c_status;
707 if (shadow_status & VIA8233_SHADOW_STAT_ACTIVE)
708 viadev->in_interrupt |= VIA_REG_STAT_ACTIVE;
709 spin_unlock(&chip->reg_lock);
710
711 snd_pcm_period_elapsed(substream);
712
713 spin_lock(&chip->reg_lock);
714 viadev->in_interrupt = 0;
715 }
716 outb(c_status, VIADEV_REG(viadev, OFFSET_STATUS)); /* ack */
717 irqreturn = 1;
718 }
719 spin_unlock(&chip->reg_lock);
720 return IRQ_RETVAL(irqreturn);
721 }
722
723 /*
724 * PCM callbacks
725 */
726
727 /*
728 * trigger callback
729 */
730 static int snd_via82xx_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
731 {
732 struct via82xx *chip = snd_pcm_substream_chip(substream);
733 struct viadev *viadev = substream->runtime->private_data;
734 unsigned char val;
735
736 if (chip->chip_type != TYPE_VIA686)
737 val = VIA_REG_CTRL_INT;
738 else
739 val = 0;
740 switch (cmd) {
741 case SNDRV_PCM_TRIGGER_START:
742 case SNDRV_PCM_TRIGGER_RESUME:
743 val |= VIA_REG_CTRL_START;
744 viadev->running = 1;
745 break;
746 case SNDRV_PCM_TRIGGER_STOP:
747 case SNDRV_PCM_TRIGGER_SUSPEND:
748 val = VIA_REG_CTRL_TERMINATE;
749 viadev->running = 0;
750 break;
751 case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
752 val |= VIA_REG_CTRL_PAUSE;
753 viadev->running = 0;
754 break;
755 case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
756 viadev->running = 1;
757 break;
758 default:
759 return -EINVAL;
760 }
761 outb(val, VIADEV_REG(viadev, OFFSET_CONTROL));
762 if (cmd == SNDRV_PCM_TRIGGER_STOP)
763 snd_via82xx_channel_reset(chip, viadev);
764 return 0;
765 }
766
767
768 /*
769 * pointer callbacks
770 */
771
772 /*
773 * calculate the linear position at the given sg-buffer index and the rest count
774 */
775
776 #define check_invalid_pos(viadev,pos) \
777 ((pos) < viadev->lastpos && ((pos) >= viadev->bufsize2 ||\
778 viadev->lastpos < viadev->bufsize2))
779
780 static inline unsigned int calc_linear_pos(struct viadev *viadev, unsigned int idx,
781 unsigned int count)
782 {
783 unsigned int size, base, res;
784
785 size = viadev->idx_table[idx].size;
786 base = viadev->idx_table[idx].offset;
787 res = base + size - count;
788 if (res >= viadev->bufsize)
789 res -= viadev->bufsize;
790
791 /* check the validity of the calculated position */
792 if (size < count) {
793 snd_printd(KERN_ERR "invalid via82xx_cur_ptr (size = %d, count = %d)\n",
794 (int)size, (int)count);
795 res = viadev->lastpos;
796 } else {
797 if (! count) {
798 /* Some mobos report count = 0 on the DMA boundary,
799 * i.e. count = size indeed.
800 * Let's check whether this step is above the expected size.
801 */
802 int delta = res - viadev->lastpos;
803 if (delta < 0)
804 delta += viadev->bufsize;
805 if ((unsigned int)delta > viadev->fragsize)
806 res = base;
807 }
808 if (check_invalid_pos(viadev, res)) {
809 #ifdef POINTER_DEBUG
810 printk(KERN_DEBUG "fail: idx = %i/%i, lastpos = 0x%x, "
811 "bufsize2 = 0x%x, offsize = 0x%x, size = 0x%x, "
812 "count = 0x%x\n", idx, viadev->tbl_entries,
813 viadev->lastpos, viadev->bufsize2,
814 viadev->idx_table[idx].offset,
815 viadev->idx_table[idx].size, count);
816 #endif
817 /* count register returns full size when end of buffer is reached */
818 res = base + size;
819 if (check_invalid_pos(viadev, res)) {
820 snd_printd(KERN_ERR "invalid via82xx_cur_ptr (2), "
821 "using last valid pointer\n");
822 res = viadev->lastpos;
823 }
824 }
825 }
826 return res;
827 }
828
829 /*
830 * get the current pointer on via686
831 */
832 static snd_pcm_uframes_t snd_via686_pcm_pointer(struct snd_pcm_substream *substream)
833 {
834 struct via82xx *chip = snd_pcm_substream_chip(substream);
835 struct viadev *viadev = substream->runtime->private_data;
836 unsigned int idx, ptr, count, res;
837
838 if (snd_BUG_ON(!viadev->tbl_entries))
839 return 0;
840 if (!(inb(VIADEV_REG(viadev, OFFSET_STATUS)) & VIA_REG_STAT_ACTIVE))
841 return 0;
842
843 spin_lock(&chip->reg_lock);
844 count = inl(VIADEV_REG(viadev, OFFSET_CURR_COUNT)) & 0xffffff;
845 /* The via686a does not have the current index register,
846 * so we need to calculate the index from CURR_PTR.
847 */
848 ptr = inl(VIADEV_REG(viadev, OFFSET_CURR_PTR));
849 if (ptr <= (unsigned int)viadev->table.addr)
850 idx = 0;
851 else /* CURR_PTR holds the address + 8 */
852 idx = ((ptr - (unsigned int)viadev->table.addr) / 8 - 1) % viadev->tbl_entries;
853 res = calc_linear_pos(viadev, idx, count);
854 viadev->lastpos = res; /* remember the last position */
855 spin_unlock(&chip->reg_lock);
856
857 return bytes_to_frames(substream->runtime, res);
858 }
859
860 /*
861 * get the current pointer on via823x
862 */
863 static snd_pcm_uframes_t snd_via8233_pcm_pointer(struct snd_pcm_substream *substream)
864 {
865 struct via82xx *chip = snd_pcm_substream_chip(substream);
866 struct viadev *viadev = substream->runtime->private_data;
867 unsigned int idx, count, res;
868 int status;
869
870 if (snd_BUG_ON(!viadev->tbl_entries))
871 return 0;
872
873 spin_lock(&chip->reg_lock);
874 count = inl(VIADEV_REG(viadev, OFFSET_CURR_COUNT));
875 status = viadev->in_interrupt;
876 if (!status)
877 status = inb(VIADEV_REG(viadev, OFFSET_STATUS));
878
879 /* An apparent bug in the 8251 is worked around by sending a
880 * REG_CTRL_START. */
881 if (chip->revision == VIA_REV_8251 && (status & VIA_REG_STAT_EOL))
882 snd_via82xx_pcm_trigger(substream, SNDRV_PCM_TRIGGER_START);
883
884 if (!(status & VIA_REG_STAT_ACTIVE)) {
885 res = 0;
886 goto unlock;
887 }
888 if (count & 0xffffff) {
889 idx = count >> 24;
890 if (idx >= viadev->tbl_entries) {
891 #ifdef POINTER_DEBUG
892 printk(KERN_DEBUG "fail: invalid idx = %i/%i\n", idx,
893 viadev->tbl_entries);
894 #endif
895 res = viadev->lastpos;
896 } else {
897 count &= 0xffffff;
898 res = calc_linear_pos(viadev, idx, count);
899 }
900 } else {
901 res = viadev->hwptr_done;
902 if (!viadev->in_interrupt) {
903 if (status & VIA_REG_STAT_EOL) {
904 res = 0;
905 } else
906 if (status & VIA_REG_STAT_FLAG) {
907 res += viadev->fragsize;
908 }
909 }
910 }
911 unlock:
912 viadev->lastpos = res;
913 spin_unlock(&chip->reg_lock);
914
915 return bytes_to_frames(substream->runtime, res);
916 }
917
918
919 /*
920 * hw_params callback:
921 * allocate the buffer and build up the buffer description table
922 */
923 static int snd_via82xx_hw_params(struct snd_pcm_substream *substream,
924 struct snd_pcm_hw_params *hw_params)
925 {
926 struct via82xx *chip = snd_pcm_substream_chip(substream);
927 struct viadev *viadev = substream->runtime->private_data;
928 int err;
929
930 err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
931 if (err < 0)
932 return err;
933 err = build_via_table(viadev, substream, chip->pci,
934 params_periods(hw_params),
935 params_period_bytes(hw_params));
936 if (err < 0)
937 return err;
938
939 return 0;
940 }
941
942 /*
943 * hw_free callback:
944 * clean up the buffer description table and release the buffer
945 */
946 static int snd_via82xx_hw_free(struct snd_pcm_substream *substream)
947 {
948 struct via82xx *chip = snd_pcm_substream_chip(substream);
949 struct viadev *viadev = substream->runtime->private_data;
950
951 clean_via_table(viadev, substream, chip->pci);
952 snd_pcm_lib_free_pages(substream);
953 return 0;
954 }
955
956
957 /*
958 * set up the table pointer
959 */
960 static void snd_via82xx_set_table_ptr(struct via82xx *chip, struct viadev *viadev)
961 {
962 snd_via82xx_codec_ready(chip, 0);
963 outl((u32)viadev->table.addr, VIADEV_REG(viadev, OFFSET_TABLE_PTR));
964 udelay(20);
965 snd_via82xx_codec_ready(chip, 0);
966 }
967
968 /*
969 * prepare callback for playback and capture on via686
970 */
971 static void via686_setup_format(struct via82xx *chip, struct viadev *viadev,
972 struct snd_pcm_runtime *runtime)
973 {
974 snd_via82xx_channel_reset(chip, viadev);
975 /* this must be set after channel_reset */
976 snd_via82xx_set_table_ptr(chip, viadev);
977 outb(VIA_REG_TYPE_AUTOSTART |
978 (runtime->format == SNDRV_PCM_FORMAT_S16_LE ? VIA_REG_TYPE_16BIT : 0) |
979 (runtime->channels > 1 ? VIA_REG_TYPE_STEREO : 0) |
980 ((viadev->reg_offset & 0x10) == 0 ? VIA_REG_TYPE_INT_LSAMPLE : 0) |
981 VIA_REG_TYPE_INT_EOL |
982 VIA_REG_TYPE_INT_FLAG, VIADEV_REG(viadev, OFFSET_TYPE));
983 }
984
985 static int snd_via686_playback_prepare(struct snd_pcm_substream *substream)
986 {
987 struct via82xx *chip = snd_pcm_substream_chip(substream);
988 struct viadev *viadev = substream->runtime->private_data;
989 struct snd_pcm_runtime *runtime = substream->runtime;
990
991 snd_ac97_set_rate(chip->ac97, AC97_PCM_FRONT_DAC_RATE, runtime->rate);
992 snd_ac97_set_rate(chip->ac97, AC97_SPDIF, runtime->rate);
993 via686_setup_format(chip, viadev, runtime);
994 return 0;
995 }
996
997 static int snd_via686_capture_prepare(struct snd_pcm_substream *substream)
998 {
999 struct via82xx *chip = snd_pcm_substream_chip(substream);
1000 struct viadev *viadev = substream->runtime->private_data;
1001 struct snd_pcm_runtime *runtime = substream->runtime;
1002
1003 snd_ac97_set_rate(chip->ac97, AC97_PCM_LR_ADC_RATE, runtime->rate);
1004 via686_setup_format(chip, viadev, runtime);
1005 return 0;
1006 }
1007
1008 /*
1009 * lock the current rate
1010 */
1011 static int via_lock_rate(struct via_rate_lock *rec, int rate)
1012 {
1013 int changed = 0;
1014
1015 spin_lock_irq(&rec->lock);
1016 if (rec->rate != rate) {
1017 if (rec->rate && rec->used > 1) /* already set */
1018 changed = -EINVAL;
1019 else {
1020 rec->rate = rate;
1021 changed = 1;
1022 }
1023 }
1024 spin_unlock_irq(&rec->lock);
1025 return changed;
1026 }
1027
1028 /*
1029 * prepare callback for DSX playback on via823x
1030 */
1031 static int snd_via8233_playback_prepare(struct snd_pcm_substream *substream)
1032 {
1033 struct via82xx *chip = snd_pcm_substream_chip(substream);
1034 struct viadev *viadev = substream->runtime->private_data;
1035 struct snd_pcm_runtime *runtime = substream->runtime;
1036 int ac97_rate = chip->dxs_src ? 48000 : runtime->rate;
1037 int rate_changed;
1038 u32 rbits;
1039
1040 if ((rate_changed = via_lock_rate(&chip->rates[0], ac97_rate)) < 0)
1041 return rate_changed;
1042 if (rate_changed)
1043 snd_ac97_set_rate(chip->ac97, AC97_PCM_FRONT_DAC_RATE,
1044 chip->no_vra ? 48000 : runtime->rate);
1045 if (chip->spdif_on && viadev->reg_offset == 0x30)
1046 snd_ac97_set_rate(chip->ac97, AC97_SPDIF, runtime->rate);
1047
1048 if (runtime->rate == 48000)
1049 rbits = 0xfffff;
1050 else
1051 rbits = (0x100000 / 48000) * runtime->rate +
1052 ((0x100000 % 48000) * runtime->rate) / 48000;
1053 snd_BUG_ON(rbits & ~0xfffff);
1054 snd_via82xx_channel_reset(chip, viadev);
1055 snd_via82xx_set_table_ptr(chip, viadev);
1056 outb(chip->playback_volume[viadev->reg_offset / 0x10][0],
1057 VIADEV_REG(viadev, OFS_PLAYBACK_VOLUME_L));
1058 outb(chip->playback_volume[viadev->reg_offset / 0x10][1],
1059 VIADEV_REG(viadev, OFS_PLAYBACK_VOLUME_R));
1060 outl((runtime->format == SNDRV_PCM_FORMAT_S16_LE ? VIA8233_REG_TYPE_16BIT : 0) | /* format */
1061 (runtime->channels > 1 ? VIA8233_REG_TYPE_STEREO : 0) | /* stereo */
1062 rbits | /* rate */
1063 0xff000000, /* STOP index is never reached */
1064 VIADEV_REG(viadev, OFFSET_STOP_IDX));
1065 udelay(20);
1066 snd_via82xx_codec_ready(chip, 0);
1067 return 0;
1068 }
1069
1070 /*
1071 * prepare callback for multi-channel playback on via823x
1072 */
1073 static int snd_via8233_multi_prepare(struct snd_pcm_substream *substream)
1074 {
1075 struct via82xx *chip = snd_pcm_substream_chip(substream);
1076 struct viadev *viadev = substream->runtime->private_data;
1077 struct snd_pcm_runtime *runtime = substream->runtime;
1078 unsigned int slots;
1079 int fmt;
1080
1081 if (via_lock_rate(&chip->rates[0], runtime->rate) < 0)
1082 return -EINVAL;
1083 snd_ac97_set_rate(chip->ac97, AC97_PCM_FRONT_DAC_RATE, runtime->rate);
1084 snd_ac97_set_rate(chip->ac97, AC97_PCM_SURR_DAC_RATE, runtime->rate);
1085 snd_ac97_set_rate(chip->ac97, AC97_PCM_LFE_DAC_RATE, runtime->rate);
1086 snd_ac97_set_rate(chip->ac97, AC97_SPDIF, runtime->rate);
1087 snd_via82xx_channel_reset(chip, viadev);
1088 snd_via82xx_set_table_ptr(chip, viadev);
1089
1090 fmt = (runtime->format == SNDRV_PCM_FORMAT_S16_LE) ?
1091 VIA_REG_MULTPLAY_FMT_16BIT : VIA_REG_MULTPLAY_FMT_8BIT;
1092 fmt |= runtime->channels << 4;
1093 outb(fmt, VIADEV_REG(viadev, OFS_MULTPLAY_FORMAT));
1094 #if 0
1095 if (chip->revision == VIA_REV_8233A)
1096 slots = 0;
1097 else
1098 #endif
1099 {
1100 /* set sample number to slot 3, 4, 7, 8, 6, 9 (for VIA8233/C,8235) */
1101 /* corresponding to FL, FR, RL, RR, C, LFE ?? */
1102 switch (runtime->channels) {
1103 case 1: slots = (1<<0) | (1<<4); break;
1104 case 2: slots = (1<<0) | (2<<4); break;
1105 case 3: slots = (1<<0) | (2<<4) | (5<<8); break;
1106 case 4: slots = (1<<0) | (2<<4) | (3<<8) | (4<<12); break;
1107 case 5: slots = (1<<0) | (2<<4) | (3<<8) | (4<<12) | (5<<16); break;
1108 case 6: slots = (1<<0) | (2<<4) | (3<<8) | (4<<12) | (5<<16) | (6<<20); break;
1109 default: slots = 0; break;
1110 }
1111 }
1112 /* STOP index is never reached */
1113 outl(0xff000000 | slots, VIADEV_REG(viadev, OFFSET_STOP_IDX));
1114 udelay(20);
1115 snd_via82xx_codec_ready(chip, 0);
1116 return 0;
1117 }
1118
1119 /*
1120 * prepare callback for capture on via823x
1121 */
1122 static int snd_via8233_capture_prepare(struct snd_pcm_substream *substream)
1123 {
1124 struct via82xx *chip = snd_pcm_substream_chip(substream);
1125 struct viadev *viadev = substream->runtime->private_data;
1126 struct snd_pcm_runtime *runtime = substream->runtime;
1127
1128 if (via_lock_rate(&chip->rates[1], runtime->rate) < 0)
1129 return -EINVAL;
1130 snd_ac97_set_rate(chip->ac97, AC97_PCM_LR_ADC_RATE, runtime->rate);
1131 snd_via82xx_channel_reset(chip, viadev);
1132 snd_via82xx_set_table_ptr(chip, viadev);
1133 outb(VIA_REG_CAPTURE_FIFO_ENABLE, VIADEV_REG(viadev, OFS_CAPTURE_FIFO));
1134 outl((runtime->format == SNDRV_PCM_FORMAT_S16_LE ? VIA8233_REG_TYPE_16BIT : 0) |
1135 (runtime->channels > 1 ? VIA8233_REG_TYPE_STEREO : 0) |
1136 0xff000000, /* STOP index is never reached */
1137 VIADEV_REG(viadev, OFFSET_STOP_IDX));
1138 udelay(20);
1139 snd_via82xx_codec_ready(chip, 0);
1140 return 0;
1141 }
1142
1143
1144 /*
1145 * pcm hardware definition, identical for both playback and capture
1146 */
1147 static struct snd_pcm_hardware snd_via82xx_hw =
1148 {
1149 .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1150 SNDRV_PCM_INFO_BLOCK_TRANSFER |
1151 SNDRV_PCM_INFO_MMAP_VALID |
1152 /* SNDRV_PCM_INFO_RESUME | */
1153 SNDRV_PCM_INFO_PAUSE),
1154 .formats = SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
1155 .rates = SNDRV_PCM_RATE_48000,
1156 .rate_min = 48000,
1157 .rate_max = 48000,
1158 .channels_min = 1,
1159 .channels_max = 2,
1160 .buffer_bytes_max = VIA_MAX_BUFSIZE,
1161 .period_bytes_min = 32,
1162 .period_bytes_max = VIA_MAX_BUFSIZE / 2,
1163 .periods_min = 2,
1164 .periods_max = VIA_TABLE_SIZE / 2,
1165 .fifo_size = 0,
1166 };
1167
1168
1169 /*
1170 * open callback skeleton
1171 */
1172 static int snd_via82xx_pcm_open(struct via82xx *chip, struct viadev *viadev,
1173 struct snd_pcm_substream *substream)
1174 {
1175 struct snd_pcm_runtime *runtime = substream->runtime;
1176 int err;
1177 struct via_rate_lock *ratep;
1178 bool use_src = false;
1179
1180 runtime->hw = snd_via82xx_hw;
1181
1182 /* set the hw rate condition */
1183 ratep = &chip->rates[viadev->direction];
1184 spin_lock_irq(&ratep->lock);
1185 ratep->used++;
1186 if (chip->spdif_on && viadev->reg_offset == 0x30) {
1187 /* DXS#3 and spdif is on */
1188 runtime->hw.rates = chip->ac97->rates[AC97_RATES_SPDIF];
1189 snd_pcm_limit_hw_rates(runtime);
1190 } else if (chip->dxs_fixed && viadev->reg_offset < 0x40) {
1191 /* fixed DXS playback rate */
1192 runtime->hw.rates = SNDRV_PCM_RATE_48000;
1193 runtime->hw.rate_min = runtime->hw.rate_max = 48000;
1194 } else if (chip->dxs_src && viadev->reg_offset < 0x40) {
1195 /* use full SRC capabilities of DXS */
1196 runtime->hw.rates = (SNDRV_PCM_RATE_CONTINUOUS |
1197 SNDRV_PCM_RATE_8000_48000);
1198 runtime->hw.rate_min = 8000;
1199 runtime->hw.rate_max = 48000;
1200 use_src = true;
1201 } else if (! ratep->rate) {
1202 int idx = viadev->direction ? AC97_RATES_ADC : AC97_RATES_FRONT_DAC;
1203 runtime->hw.rates = chip->ac97->rates[idx];
1204 snd_pcm_limit_hw_rates(runtime);
1205 } else {
1206 /* a fixed rate */
1207 runtime->hw.rates = SNDRV_PCM_RATE_KNOT;
1208 runtime->hw.rate_max = runtime->hw.rate_min = ratep->rate;
1209 }
1210 spin_unlock_irq(&ratep->lock);
1211
1212 /* we may remove following constaint when we modify table entries
1213 in interrupt */
1214 if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
1215 return err;
1216
1217 if (use_src) {
1218 err = snd_pcm_hw_rule_noresample(runtime, 48000);
1219 if (err < 0)
1220 return err;
1221 }
1222
1223 runtime->private_data = viadev;
1224 viadev->substream = substream;
1225
1226 return 0;
1227 }
1228
1229
1230 /*
1231 * open callback for playback on via686
1232 */
1233 static int snd_via686_playback_open(struct snd_pcm_substream *substream)
1234 {
1235 struct via82xx *chip = snd_pcm_substream_chip(substream);
1236 struct viadev *viadev = &chip->devs[chip->playback_devno + substream->number];
1237 int err;
1238
1239 if ((err = snd_via82xx_pcm_open(chip, viadev, substream)) < 0)
1240 return err;
1241 return 0;
1242 }
1243
1244 /*
1245 * open callback for playback on via823x DXS
1246 */
1247 static int snd_via8233_playback_open(struct snd_pcm_substream *substream)
1248 {
1249 struct via82xx *chip = snd_pcm_substream_chip(substream);
1250 struct viadev *viadev;
1251 unsigned int stream;
1252 int err;
1253
1254 viadev = &chip->devs[chip->playback_devno + substream->number];
1255 if ((err = snd_via82xx_pcm_open(chip, viadev, substream)) < 0)
1256 return err;
1257 stream = viadev->reg_offset / 0x10;
1258 if (chip->dxs_controls[stream]) {
1259 chip->playback_volume[stream][0] =
1260 VIA_DXS_MAX_VOLUME - (dxs_init_volume & 31);
1261 chip->playback_volume[stream][1] =
1262 VIA_DXS_MAX_VOLUME - (dxs_init_volume & 31);
1263 chip->dxs_controls[stream]->vd[0].access &=
1264 ~SNDRV_CTL_ELEM_ACCESS_INACTIVE;
1265 snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE |
1266 SNDRV_CTL_EVENT_MASK_INFO,
1267 &chip->dxs_controls[stream]->id);
1268 }
1269 return 0;
1270 }
1271
1272 /*
1273 * open callback for playback on via823x multi-channel
1274 */
1275 static int snd_via8233_multi_open(struct snd_pcm_substream *substream)
1276 {
1277 struct via82xx *chip = snd_pcm_substream_chip(substream);
1278 struct viadev *viadev = &chip->devs[chip->multi_devno];
1279 int err;
1280 /* channels constraint for VIA8233A
1281 * 3 and 5 channels are not supported
1282 */
1283 static unsigned int channels[] = {
1284 1, 2, 4, 6
1285 };
1286 static struct snd_pcm_hw_constraint_list hw_constraints_channels = {
1287 .count = ARRAY_SIZE(channels),
1288 .list = channels,
1289 .mask = 0,
1290 };
1291
1292 if ((err = snd_via82xx_pcm_open(chip, viadev, substream)) < 0)
1293 return err;
1294 substream->runtime->hw.channels_max = 6;
1295 if (chip->revision == VIA_REV_8233A)
1296 snd_pcm_hw_constraint_list(substream->runtime, 0,
1297 SNDRV_PCM_HW_PARAM_CHANNELS,
1298 &hw_constraints_channels);
1299 return 0;
1300 }
1301
1302 /*
1303 * open callback for capture on via686 and via823x
1304 */
1305 static int snd_via82xx_capture_open(struct snd_pcm_substream *substream)
1306 {
1307 struct via82xx *chip = snd_pcm_substream_chip(substream);
1308 struct viadev *viadev = &chip->devs[chip->capture_devno + substream->pcm->device];
1309
1310 return snd_via82xx_pcm_open(chip, viadev, substream);
1311 }
1312
1313 /*
1314 * close callback
1315 */
1316 static int snd_via82xx_pcm_close(struct snd_pcm_substream *substream)
1317 {
1318 struct via82xx *chip = snd_pcm_substream_chip(substream);
1319 struct viadev *viadev = substream->runtime->private_data;
1320 struct via_rate_lock *ratep;
1321
1322 /* release the rate lock */
1323 ratep = &chip->rates[viadev->direction];
1324 spin_lock_irq(&ratep->lock);
1325 ratep->used--;
1326 if (! ratep->used)
1327 ratep->rate = 0;
1328 spin_unlock_irq(&ratep->lock);
1329 if (! ratep->rate) {
1330 if (! viadev->direction) {
1331 snd_ac97_update_power(chip->ac97,
1332 AC97_PCM_FRONT_DAC_RATE, 0);
1333 snd_ac97_update_power(chip->ac97,
1334 AC97_PCM_SURR_DAC_RATE, 0);
1335 snd_ac97_update_power(chip->ac97,
1336 AC97_PCM_LFE_DAC_RATE, 0);
1337 } else
1338 snd_ac97_update_power(chip->ac97,
1339 AC97_PCM_LR_ADC_RATE, 0);
1340 }
1341 viadev->substream = NULL;
1342 return 0;
1343 }
1344
1345 static int snd_via8233_playback_close(struct snd_pcm_substream *substream)
1346 {
1347 struct via82xx *chip = snd_pcm_substream_chip(substream);
1348 struct viadev *viadev = substream->runtime->private_data;
1349 unsigned int stream;
1350
1351 stream = viadev->reg_offset / 0x10;
1352 if (chip->dxs_controls[stream]) {
1353 chip->dxs_controls[stream]->vd[0].access |=
1354 SNDRV_CTL_ELEM_ACCESS_INACTIVE;
1355 snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_INFO,
1356 &chip->dxs_controls[stream]->id);
1357 }
1358 return snd_via82xx_pcm_close(substream);
1359 }
1360
1361
1362 /* via686 playback callbacks */
1363 static struct snd_pcm_ops snd_via686_playback_ops = {
1364 .open = snd_via686_playback_open,
1365 .close = snd_via82xx_pcm_close,
1366 .ioctl = snd_pcm_lib_ioctl,
1367 .hw_params = snd_via82xx_hw_params,
1368 .hw_free = snd_via82xx_hw_free,
1369 .prepare = snd_via686_playback_prepare,
1370 .trigger = snd_via82xx_pcm_trigger,
1371 .pointer = snd_via686_pcm_pointer,
1372 .page = snd_pcm_sgbuf_ops_page,
1373 };
1374
1375 /* via686 capture callbacks */
1376 static struct snd_pcm_ops snd_via686_capture_ops = {
1377 .open = snd_via82xx_capture_open,
1378 .close = snd_via82xx_pcm_close,
1379 .ioctl = snd_pcm_lib_ioctl,
1380 .hw_params = snd_via82xx_hw_params,
1381 .hw_free = snd_via82xx_hw_free,
1382 .prepare = snd_via686_capture_prepare,
1383 .trigger = snd_via82xx_pcm_trigger,
1384 .pointer = snd_via686_pcm_pointer,
1385 .page = snd_pcm_sgbuf_ops_page,
1386 };
1387
1388 /* via823x DSX playback callbacks */
1389 static struct snd_pcm_ops snd_via8233_playback_ops = {
1390 .open = snd_via8233_playback_open,
1391 .close = snd_via8233_playback_close,
1392 .ioctl = snd_pcm_lib_ioctl,
1393 .hw_params = snd_via82xx_hw_params,
1394 .hw_free = snd_via82xx_hw_free,
1395 .prepare = snd_via8233_playback_prepare,
1396 .trigger = snd_via82xx_pcm_trigger,
1397 .pointer = snd_via8233_pcm_pointer,
1398 .page = snd_pcm_sgbuf_ops_page,
1399 };
1400
1401 /* via823x multi-channel playback callbacks */
1402 static struct snd_pcm_ops snd_via8233_multi_ops = {
1403 .open = snd_via8233_multi_open,
1404 .close = snd_via82xx_pcm_close,
1405 .ioctl = snd_pcm_lib_ioctl,
1406 .hw_params = snd_via82xx_hw_params,
1407 .hw_free = snd_via82xx_hw_free,
1408 .prepare = snd_via8233_multi_prepare,
1409 .trigger = snd_via82xx_pcm_trigger,
1410 .pointer = snd_via8233_pcm_pointer,
1411 .page = snd_pcm_sgbuf_ops_page,
1412 };
1413
1414 /* via823x capture callbacks */
1415 static struct snd_pcm_ops snd_via8233_capture_ops = {
1416 .open = snd_via82xx_capture_open,
1417 .close = snd_via82xx_pcm_close,
1418 .ioctl = snd_pcm_lib_ioctl,
1419 .hw_params = snd_via82xx_hw_params,
1420 .hw_free = snd_via82xx_hw_free,
1421 .prepare = snd_via8233_capture_prepare,
1422 .trigger = snd_via82xx_pcm_trigger,
1423 .pointer = snd_via8233_pcm_pointer,
1424 .page = snd_pcm_sgbuf_ops_page,
1425 };
1426
1427
1428 static void init_viadev(struct via82xx *chip, int idx, unsigned int reg_offset,
1429 int shadow_pos, int direction)
1430 {
1431 chip->devs[idx].reg_offset = reg_offset;
1432 chip->devs[idx].shadow_shift = shadow_pos * 4;
1433 chip->devs[idx].direction = direction;
1434 chip->devs[idx].port = chip->port + reg_offset;
1435 }
1436
1437 /*
1438 * create pcm instances for VIA8233, 8233C and 8235 (not 8233A)
1439 */
1440 static int snd_via8233_pcm_new(struct via82xx *chip)
1441 {
1442 struct snd_pcm *pcm;
1443 struct snd_pcm_chmap *chmap;
1444 int i, err;
1445
1446 chip->playback_devno = 0; /* x 4 */
1447 chip->multi_devno = 4; /* x 1 */
1448 chip->capture_devno = 5; /* x 2 */
1449 chip->num_devs = 7;
1450 chip->intr_mask = 0x33033333; /* FLAG|EOL for rec0-1, mc, sdx0-3 */
1451
1452 /* PCM #0: 4 DSX playbacks and 1 capture */
1453 err = snd_pcm_new(chip->card, chip->card->shortname, 0, 4, 1, &pcm);
1454 if (err < 0)
1455 return err;
1456 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_via8233_playback_ops);
1457 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_via8233_capture_ops);
1458 pcm->private_data = chip;
1459 strcpy(pcm->name, chip->card->shortname);
1460 chip->pcms[0] = pcm;
1461 /* set up playbacks */
1462 for (i = 0; i < 4; i++)
1463 init_viadev(chip, i, 0x10 * i, i, 0);
1464 /* capture */
1465 init_viadev(chip, chip->capture_devno, VIA_REG_CAPTURE_8233_STATUS, 6, 1);
1466
1467 snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
1468 snd_dma_pci_data(chip->pci),
1469 64*1024, VIA_MAX_BUFSIZE);
1470
1471 err = snd_pcm_add_chmap_ctls(pcm, SNDRV_PCM_STREAM_PLAYBACK,
1472 snd_pcm_std_chmaps, 2, 0,
1473 &chmap);
1474 if (err < 0)
1475 return err;
1476
1477 /* PCM #1: multi-channel playback and 2nd capture */
1478 err = snd_pcm_new(chip->card, chip->card->shortname, 1, 1, 1, &pcm);
1479 if (err < 0)
1480 return err;
1481 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_via8233_multi_ops);
1482 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_via8233_capture_ops);
1483 pcm->private_data = chip;
1484 strcpy(pcm->name, chip->card->shortname);
1485 chip->pcms[1] = pcm;
1486 /* set up playback */
1487 init_viadev(chip, chip->multi_devno, VIA_REG_MULTPLAY_STATUS, 4, 0);
1488 /* set up capture */
1489 init_viadev(chip, chip->capture_devno + 1, VIA_REG_CAPTURE_8233_STATUS + 0x10, 7, 1);
1490
1491 snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
1492 snd_dma_pci_data(chip->pci),
1493 64*1024, VIA_MAX_BUFSIZE);
1494
1495 err = snd_pcm_add_chmap_ctls(pcm, SNDRV_PCM_STREAM_PLAYBACK,
1496 snd_pcm_alt_chmaps, 6, 0,
1497 &chmap);
1498 if (err < 0)
1499 return err;
1500 chip->ac97->chmaps[SNDRV_PCM_STREAM_PLAYBACK] = chmap;
1501
1502 return 0;
1503 }
1504
1505 /*
1506 * create pcm instances for VIA8233A
1507 */
1508 static int snd_via8233a_pcm_new(struct via82xx *chip)
1509 {
1510 struct snd_pcm *pcm;
1511 struct snd_pcm_chmap *chmap;
1512 int err;
1513
1514 chip->multi_devno = 0;
1515 chip->playback_devno = 1;
1516 chip->capture_devno = 2;
1517 chip->num_devs = 3;
1518 chip->intr_mask = 0x03033000; /* FLAG|EOL for rec0, mc, sdx3 */
1519
1520 /* PCM #0: multi-channel playback and capture */
1521 err = snd_pcm_new(chip->card, chip->card->shortname, 0, 1, 1, &pcm);
1522 if (err < 0)
1523 return err;
1524 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_via8233_multi_ops);
1525 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_via8233_capture_ops);
1526 pcm->private_data = chip;
1527 strcpy(pcm->name, chip->card->shortname);
1528 chip->pcms[0] = pcm;
1529 /* set up playback */
1530 init_viadev(chip, chip->multi_devno, VIA_REG_MULTPLAY_STATUS, 4, 0);
1531 /* capture */
1532 init_viadev(chip, chip->capture_devno, VIA_REG_CAPTURE_8233_STATUS, 6, 1);
1533
1534 snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
1535 snd_dma_pci_data(chip->pci),
1536 64*1024, VIA_MAX_BUFSIZE);
1537
1538 err = snd_pcm_add_chmap_ctls(pcm, SNDRV_PCM_STREAM_PLAYBACK,
1539 snd_pcm_alt_chmaps, 6, 0,
1540 &chmap);
1541 if (err < 0)
1542 return err;
1543 chip->ac97->chmaps[SNDRV_PCM_STREAM_PLAYBACK] = chmap;
1544
1545 /* SPDIF supported? */
1546 if (! ac97_can_spdif(chip->ac97))
1547 return 0;
1548
1549 /* PCM #1: DXS3 playback (for spdif) */
1550 err = snd_pcm_new(chip->card, chip->card->shortname, 1, 1, 0, &pcm);
1551 if (err < 0)
1552 return err;
1553 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_via8233_playback_ops);
1554 pcm->private_data = chip;
1555 strcpy(pcm->name, chip->card->shortname);
1556 chip->pcms[1] = pcm;
1557 /* set up playback */
1558 init_viadev(chip, chip->playback_devno, 0x30, 3, 0);
1559
1560 snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
1561 snd_dma_pci_data(chip->pci),
1562 64*1024, VIA_MAX_BUFSIZE);
1563 return 0;
1564 }
1565
1566 /*
1567 * create a pcm instance for via686a/b
1568 */
1569 static int snd_via686_pcm_new(struct via82xx *chip)
1570 {
1571 struct snd_pcm *pcm;
1572 int err;
1573
1574 chip->playback_devno = 0;
1575 chip->capture_devno = 1;
1576 chip->num_devs = 2;
1577 chip->intr_mask = 0x77; /* FLAG | EOL for PB, CP, FM */
1578
1579 err = snd_pcm_new(chip->card, chip->card->shortname, 0, 1, 1, &pcm);
1580 if (err < 0)
1581 return err;
1582 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_via686_playback_ops);
1583 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_via686_capture_ops);
1584 pcm->private_data = chip;
1585 strcpy(pcm->name, chip->card->shortname);
1586 chip->pcms[0] = pcm;
1587 init_viadev(chip, 0, VIA_REG_PLAYBACK_STATUS, 0, 0);
1588 init_viadev(chip, 1, VIA_REG_CAPTURE_STATUS, 0, 1);
1589
1590 snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
1591 snd_dma_pci_data(chip->pci),
1592 64*1024, VIA_MAX_BUFSIZE);
1593 return 0;
1594 }
1595
1596
1597 /*
1598 * Mixer part
1599 */
1600
1601 static int snd_via8233_capture_source_info(struct snd_kcontrol *kcontrol,
1602 struct snd_ctl_elem_info *uinfo)
1603 {
1604 /* formerly they were "Line" and "Mic", but it looks like that they
1605 * have nothing to do with the actual physical connections...
1606 */
1607 static char *texts[2] = {
1608 "Input1", "Input2"
1609 };
1610 uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
1611 uinfo->count = 1;
1612 uinfo->value.enumerated.items = 2;
1613 if (uinfo->value.enumerated.item >= 2)
1614 uinfo->value.enumerated.item = 1;
1615 strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
1616 return 0;
1617 }
1618
1619 static int snd_via8233_capture_source_get(struct snd_kcontrol *kcontrol,
1620 struct snd_ctl_elem_value *ucontrol)
1621 {
1622 struct via82xx *chip = snd_kcontrol_chip(kcontrol);
1623 unsigned long port = chip->port + (kcontrol->id.index ? (VIA_REG_CAPTURE_CHANNEL + 0x10) : VIA_REG_CAPTURE_CHANNEL);
1624 ucontrol->value.enumerated.item[0] = inb(port) & VIA_REG_CAPTURE_CHANNEL_MIC ? 1 : 0;
1625 return 0;
1626 }
1627
1628 static int snd_via8233_capture_source_put(struct snd_kcontrol *kcontrol,
1629 struct snd_ctl_elem_value *ucontrol)
1630 {
1631 struct via82xx *chip = snd_kcontrol_chip(kcontrol);
1632 unsigned long port = chip->port + (kcontrol->id.index ? (VIA_REG_CAPTURE_CHANNEL + 0x10) : VIA_REG_CAPTURE_CHANNEL);
1633 u8 val, oval;
1634
1635 spin_lock_irq(&chip->reg_lock);
1636 oval = inb(port);
1637 val = oval & ~VIA_REG_CAPTURE_CHANNEL_MIC;
1638 if (ucontrol->value.enumerated.item[0])
1639 val |= VIA_REG_CAPTURE_CHANNEL_MIC;
1640 if (val != oval)
1641 outb(val, port);
1642 spin_unlock_irq(&chip->reg_lock);
1643 return val != oval;
1644 }
1645
1646 static struct snd_kcontrol_new snd_via8233_capture_source = {
1647 .name = "Input Source Select",
1648 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1649 .info = snd_via8233_capture_source_info,
1650 .get = snd_via8233_capture_source_get,
1651 .put = snd_via8233_capture_source_put,
1652 };
1653
1654 #define snd_via8233_dxs3_spdif_info snd_ctl_boolean_mono_info
1655
1656 static int snd_via8233_dxs3_spdif_get(struct snd_kcontrol *kcontrol,
1657 struct snd_ctl_elem_value *ucontrol)
1658 {
1659 struct via82xx *chip = snd_kcontrol_chip(kcontrol);
1660 u8 val;
1661
1662 pci_read_config_byte(chip->pci, VIA8233_SPDIF_CTRL, &val);
1663 ucontrol->value.integer.value[0] = (val & VIA8233_SPDIF_DX3) ? 1 : 0;
1664 return 0;
1665 }
1666
1667 static int snd_via8233_dxs3_spdif_put(struct snd_kcontrol *kcontrol,
1668 struct snd_ctl_elem_value *ucontrol)
1669 {
1670 struct via82xx *chip = snd_kcontrol_chip(kcontrol);
1671 u8 val, oval;
1672
1673 pci_read_config_byte(chip->pci, VIA8233_SPDIF_CTRL, &oval);
1674 val = oval & ~VIA8233_SPDIF_DX3;
1675 if (ucontrol->value.integer.value[0])
1676 val |= VIA8233_SPDIF_DX3;
1677 /* save the spdif flag for rate filtering */
1678 chip->spdif_on = ucontrol->value.integer.value[0] ? 1 : 0;
1679 if (val != oval) {
1680 pci_write_config_byte(chip->pci, VIA8233_SPDIF_CTRL, val);
1681 return 1;
1682 }
1683 return 0;
1684 }
1685
1686 static struct snd_kcontrol_new snd_via8233_dxs3_spdif_control = {
1687 .name = SNDRV_CTL_NAME_IEC958("Output ",NONE,SWITCH),
1688 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1689 .info = snd_via8233_dxs3_spdif_info,
1690 .get = snd_via8233_dxs3_spdif_get,
1691 .put = snd_via8233_dxs3_spdif_put,
1692 };
1693
1694 static int snd_via8233_dxs_volume_info(struct snd_kcontrol *kcontrol,
1695 struct snd_ctl_elem_info *uinfo)
1696 {
1697 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
1698 uinfo->count = 2;
1699 uinfo->value.integer.min = 0;
1700 uinfo->value.integer.max = VIA_DXS_MAX_VOLUME;
1701 return 0;
1702 }
1703
1704 static int snd_via8233_dxs_volume_get(struct snd_kcontrol *kcontrol,
1705 struct snd_ctl_elem_value *ucontrol)
1706 {
1707 struct via82xx *chip = snd_kcontrol_chip(kcontrol);
1708 unsigned int idx = kcontrol->id.subdevice;
1709
1710 ucontrol->value.integer.value[0] = VIA_DXS_MAX_VOLUME - chip->playback_volume[idx][0];
1711 ucontrol->value.integer.value[1] = VIA_DXS_MAX_VOLUME - chip->playback_volume[idx][1];
1712 return 0;
1713 }
1714
1715 static int snd_via8233_pcmdxs_volume_get(struct snd_kcontrol *kcontrol,
1716 struct snd_ctl_elem_value *ucontrol)
1717 {
1718 struct via82xx *chip = snd_kcontrol_chip(kcontrol);
1719 ucontrol->value.integer.value[0] = VIA_DXS_MAX_VOLUME - chip->playback_volume_c[0];
1720 ucontrol->value.integer.value[1] = VIA_DXS_MAX_VOLUME - chip->playback_volume_c[1];
1721 return 0;
1722 }
1723
1724 static int snd_via8233_dxs_volume_put(struct snd_kcontrol *kcontrol,
1725 struct snd_ctl_elem_value *ucontrol)
1726 {
1727 struct via82xx *chip = snd_kcontrol_chip(kcontrol);
1728 unsigned int idx = kcontrol->id.subdevice;
1729 unsigned long port = chip->port + 0x10 * idx;
1730 unsigned char val;
1731 int i, change = 0;
1732
1733 for (i = 0; i < 2; i++) {
1734 val = ucontrol->value.integer.value[i];
1735 if (val > VIA_DXS_MAX_VOLUME)
1736 val = VIA_DXS_MAX_VOLUME;
1737 val = VIA_DXS_MAX_VOLUME - val;
1738 change |= val != chip->playback_volume[idx][i];
1739 if (change) {
1740 chip->playback_volume[idx][i] = val;
1741 outb(val, port + VIA_REG_OFS_PLAYBACK_VOLUME_L + i);
1742 }
1743 }
1744 return change;
1745 }
1746
1747 static int snd_via8233_pcmdxs_volume_put(struct snd_kcontrol *kcontrol,
1748 struct snd_ctl_elem_value *ucontrol)
1749 {
1750 struct via82xx *chip = snd_kcontrol_chip(kcontrol);
1751 unsigned int idx;
1752 unsigned char val;
1753 int i, change = 0;
1754
1755 for (i = 0; i < 2; i++) {
1756 val = ucontrol->value.integer.value[i];
1757 if (val > VIA_DXS_MAX_VOLUME)
1758 val = VIA_DXS_MAX_VOLUME;
1759 val = VIA_DXS_MAX_VOLUME - val;
1760 if (val != chip->playback_volume_c[i]) {
1761 change = 1;
1762 chip->playback_volume_c[i] = val;
1763 for (idx = 0; idx < 4; idx++) {
1764 unsigned long port = chip->port + 0x10 * idx;
1765 chip->playback_volume[idx][i] = val;
1766 outb(val, port + VIA_REG_OFS_PLAYBACK_VOLUME_L + i);
1767 }
1768 }
1769 }
1770 return change;
1771 }
1772
1773 static const DECLARE_TLV_DB_SCALE(db_scale_dxs, -4650, 150, 1);
1774
1775 static struct snd_kcontrol_new snd_via8233_pcmdxs_volume_control = {
1776 .name = "PCM Playback Volume",
1777 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1778 .access = (SNDRV_CTL_ELEM_ACCESS_READWRITE |
1779 SNDRV_CTL_ELEM_ACCESS_TLV_READ),
1780 .info = snd_via8233_dxs_volume_info,
1781 .get = snd_via8233_pcmdxs_volume_get,
1782 .put = snd_via8233_pcmdxs_volume_put,
1783 .tlv = { .p = db_scale_dxs }
1784 };
1785
1786 static struct snd_kcontrol_new snd_via8233_dxs_volume_control = {
1787 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
1788 .device = 0,
1789 /* .subdevice set later */
1790 .name = "PCM Playback Volume",
1791 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE |
1792 SNDRV_CTL_ELEM_ACCESS_TLV_READ |
1793 SNDRV_CTL_ELEM_ACCESS_INACTIVE,
1794 .info = snd_via8233_dxs_volume_info,
1795 .get = snd_via8233_dxs_volume_get,
1796 .put = snd_via8233_dxs_volume_put,
1797 .tlv = { .p = db_scale_dxs }
1798 };
1799
1800 /*
1801 */
1802
1803 static void snd_via82xx_mixer_free_ac97_bus(struct snd_ac97_bus *bus)
1804 {
1805 struct via82xx *chip = bus->private_data;
1806 chip->ac97_bus = NULL;
1807 }
1808
1809 static void snd_via82xx_mixer_free_ac97(struct snd_ac97 *ac97)
1810 {
1811 struct via82xx *chip = ac97->private_data;
1812 chip->ac97 = NULL;
1813 }
1814
1815 static struct ac97_quirk ac97_quirks[] = {
1816 {
1817 .subvendor = 0x1106,
1818 .subdevice = 0x4161,
1819 .codec_id = 0x56494161, /* VT1612A */
1820 .name = "Soltek SL-75DRV5",
1821 .type = AC97_TUNE_NONE
1822 },
1823 { /* FIXME: which codec? */
1824 .subvendor = 0x1106,
1825 .subdevice = 0x4161,
1826 .name = "ASRock K7VT2",
1827 .type = AC97_TUNE_HP_ONLY
1828 },
1829 {
1830 .subvendor = 0x110a,
1831 .subdevice = 0x0079,
1832 .name = "Fujitsu Siemens D1289",
1833 .type = AC97_TUNE_HP_ONLY
1834 },
1835 {
1836 .subvendor = 0x1019,
1837 .subdevice = 0x0a81,
1838 .name = "ECS K7VTA3",
1839 .type = AC97_TUNE_HP_ONLY
1840 },
1841 {
1842 .subvendor = 0x1019,
1843 .subdevice = 0x0a85,
1844 .name = "ECS L7VMM2",
1845 .type = AC97_TUNE_HP_ONLY
1846 },
1847 {
1848 .subvendor = 0x1019,
1849 .subdevice = 0x1841,
1850 .name = "ECS K7VTA3",
1851 .type = AC97_TUNE_HP_ONLY
1852 },
1853 {
1854 .subvendor = 0x1849,
1855 .subdevice = 0x3059,
1856 .name = "ASRock K7VM2",
1857 .type = AC97_TUNE_HP_ONLY /* VT1616 */
1858 },
1859 {
1860 .subvendor = 0x14cd,
1861 .subdevice = 0x7002,
1862 .name = "Unknown",
1863 .type = AC97_TUNE_ALC_JACK
1864 },
1865 {
1866 .subvendor = 0x1071,
1867 .subdevice = 0x8590,
1868 .name = "Mitac Mobo",
1869 .type = AC97_TUNE_ALC_JACK
1870 },
1871 {
1872 .subvendor = 0x161f,
1873 .subdevice = 0x202b,
1874 .name = "Arima Notebook",
1875 .type = AC97_TUNE_HP_ONLY,
1876 },
1877 {
1878 .subvendor = 0x161f,
1879 .subdevice = 0x2032,
1880 .name = "Targa Traveller 811",
1881 .type = AC97_TUNE_HP_ONLY,
1882 },
1883 {
1884 .subvendor = 0x161f,
1885 .subdevice = 0x2032,
1886 .name = "m680x",
1887 .type = AC97_TUNE_HP_ONLY, /* http://launchpad.net/bugs/38546 */
1888 },
1889 {
1890 .subvendor = 0x1297,
1891 .subdevice = 0xa232,
1892 .name = "Shuttle AK32VN",
1893 .type = AC97_TUNE_HP_ONLY
1894 },
1895 { } /* terminator */
1896 };
1897
1898 static int snd_via82xx_mixer_new(struct via82xx *chip, const char *quirk_override)
1899 {
1900 struct snd_ac97_template ac97;
1901 int err;
1902 static struct snd_ac97_bus_ops ops = {
1903 .write = snd_via82xx_codec_write,
1904 .read = snd_via82xx_codec_read,
1905 .wait = snd_via82xx_codec_wait,
1906 };
1907
1908 if ((err = snd_ac97_bus(chip->card, 0, &ops, chip, &chip->ac97_bus)) < 0)
1909 return err;
1910 chip->ac97_bus->private_free = snd_via82xx_mixer_free_ac97_bus;
1911 chip->ac97_bus->clock = chip->ac97_clock;
1912
1913 memset(&ac97, 0, sizeof(ac97));
1914 ac97.private_data = chip;
1915 ac97.private_free = snd_via82xx_mixer_free_ac97;
1916 ac97.pci = chip->pci;
1917 ac97.scaps = AC97_SCAP_SKIP_MODEM | AC97_SCAP_POWER_SAVE;
1918 if ((err = snd_ac97_mixer(chip->ac97_bus, &ac97, &chip->ac97)) < 0)
1919 return err;
1920
1921 snd_ac97_tune_hardware(chip->ac97, ac97_quirks, quirk_override);
1922
1923 if (chip->chip_type != TYPE_VIA686) {
1924 /* use slot 10/11 */
1925 snd_ac97_update_bits(chip->ac97, AC97_EXTENDED_STATUS, 0x03 << 4, 0x03 << 4);
1926 }
1927
1928 return 0;
1929 }
1930
1931 #ifdef SUPPORT_JOYSTICK
1932 #define JOYSTICK_ADDR 0x200
1933 static int snd_via686_create_gameport(struct via82xx *chip, unsigned char *legacy)
1934 {
1935 struct gameport *gp;
1936 struct resource *r;
1937
1938 if (!joystick)
1939 return -ENODEV;
1940
1941 r = request_region(JOYSTICK_ADDR, 8, "VIA686 gameport");
1942 if (!r) {
1943 printk(KERN_WARNING "via82xx: cannot reserve joystick port 0x%#x\n",
1944 JOYSTICK_ADDR);
1945 return -EBUSY;
1946 }
1947
1948 chip->gameport = gp = gameport_allocate_port();
1949 if (!gp) {
1950 printk(KERN_ERR "via82xx: cannot allocate memory for gameport\n");
1951 release_and_free_resource(r);
1952 return -ENOMEM;
1953 }
1954
1955 gameport_set_name(gp, "VIA686 Gameport");
1956 gameport_set_phys(gp, "pci%s/gameport0", pci_name(chip->pci));
1957 gameport_set_dev_parent(gp, &chip->pci->dev);
1958 gp->io = JOYSTICK_ADDR;
1959 gameport_set_port_data(gp, r);
1960
1961 /* Enable legacy joystick port */
1962 *legacy |= VIA_FUNC_ENABLE_GAME;
1963 pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE, *legacy);
1964
1965 gameport_register_port(chip->gameport);
1966
1967 return 0;
1968 }
1969
1970 static void snd_via686_free_gameport(struct via82xx *chip)
1971 {
1972 if (chip->gameport) {
1973 struct resource *r = gameport_get_port_data(chip->gameport);
1974
1975 gameport_unregister_port(chip->gameport);
1976 chip->gameport = NULL;
1977 release_and_free_resource(r);
1978 }
1979 }
1980 #else
1981 static inline int snd_via686_create_gameport(struct via82xx *chip, unsigned char *legacy)
1982 {
1983 return -ENOSYS;
1984 }
1985 static inline void snd_via686_free_gameport(struct via82xx *chip) { }
1986 #endif
1987
1988
1989 /*
1990 *
1991 */
1992
1993 static int snd_via8233_init_misc(struct via82xx *chip)
1994 {
1995 int i, err, caps;
1996 unsigned char val;
1997
1998 caps = chip->chip_type == TYPE_VIA8233A ? 1 : 2;
1999 for (i = 0; i < caps; i++) {
2000 snd_via8233_capture_source.index = i;
2001 err = snd_ctl_add(chip->card, snd_ctl_new1(&snd_via8233_capture_source, chip));
2002 if (err < 0)
2003 return err;
2004 }
2005 if (ac97_can_spdif(chip->ac97)) {
2006 err = snd_ctl_add(chip->card, snd_ctl_new1(&snd_via8233_dxs3_spdif_control, chip));
2007 if (err < 0)
2008 return err;
2009 }
2010 if (chip->chip_type != TYPE_VIA8233A) {
2011 /* when no h/w PCM volume control is found, use DXS volume control
2012 * as the PCM vol control
2013 */
2014 struct snd_ctl_elem_id sid;
2015 memset(&sid, 0, sizeof(sid));
2016 strcpy(sid.name, "PCM Playback Volume");
2017 sid.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
2018 if (! snd_ctl_find_id(chip->card, &sid)) {
2019 snd_printd(KERN_INFO "Using DXS as PCM Playback\n");
2020 err = snd_ctl_add(chip->card, snd_ctl_new1(&snd_via8233_pcmdxs_volume_control, chip));
2021 if (err < 0)
2022 return err;
2023 }
2024 else /* Using DXS when PCM emulation is enabled is really weird */
2025 {
2026 for (i = 0; i < 4; ++i) {
2027 struct snd_kcontrol *kctl;
2028
2029 kctl = snd_ctl_new1(
2030 &snd_via8233_dxs_volume_control, chip);
2031 if (!kctl)
2032 return -ENOMEM;
2033 kctl->id.subdevice = i;
2034 err = snd_ctl_add(chip->card, kctl);
2035 if (err < 0)
2036 return err;
2037 chip->dxs_controls[i] = kctl;
2038 }
2039 }
2040 }
2041 /* select spdif data slot 10/11 */
2042 pci_read_config_byte(chip->pci, VIA8233_SPDIF_CTRL, &val);
2043 val = (val & ~VIA8233_SPDIF_SLOT_MASK) | VIA8233_SPDIF_SLOT_1011;
2044 val &= ~VIA8233_SPDIF_DX3; /* SPDIF off as default */
2045 pci_write_config_byte(chip->pci, VIA8233_SPDIF_CTRL, val);
2046
2047 return 0;
2048 }
2049
2050 static int snd_via686_init_misc(struct via82xx *chip)
2051 {
2052 unsigned char legacy, legacy_cfg;
2053 int rev_h = 0;
2054
2055 legacy = chip->old_legacy;
2056 legacy_cfg = chip->old_legacy_cfg;
2057 legacy |= VIA_FUNC_MIDI_IRQMASK; /* FIXME: correct? (disable MIDI) */
2058 legacy &= ~VIA_FUNC_ENABLE_GAME; /* disable joystick */
2059 if (chip->revision >= VIA_REV_686_H) {
2060 rev_h = 1;
2061 if (mpu_port >= 0x200) { /* force MIDI */
2062 mpu_port &= 0xfffc;
2063 pci_write_config_dword(chip->pci, 0x18, mpu_port | 0x01);
2064 #ifdef CONFIG_PM_SLEEP
2065 chip->mpu_port_saved = mpu_port;
2066 #endif
2067 } else {
2068 mpu_port = pci_resource_start(chip->pci, 2);
2069 }
2070 } else {
2071 switch (mpu_port) { /* force MIDI */
2072 case 0x300:
2073 case 0x310:
2074 case 0x320:
2075 case 0x330:
2076 legacy_cfg &= ~(3 << 2);
2077 legacy_cfg |= (mpu_port & 0x0030) >> 2;
2078 break;
2079 default: /* no, use BIOS settings */
2080 if (legacy & VIA_FUNC_ENABLE_MIDI)
2081 mpu_port = 0x300 + ((legacy_cfg & 0x000c) << 2);
2082 break;
2083 }
2084 }
2085 if (mpu_port >= 0x200 &&
2086 (chip->mpu_res = request_region(mpu_port, 2, "VIA82xx MPU401"))
2087 != NULL) {
2088 if (rev_h)
2089 legacy |= VIA_FUNC_MIDI_PNP; /* enable PCI I/O 2 */
2090 legacy |= VIA_FUNC_ENABLE_MIDI;
2091 } else {
2092 if (rev_h)
2093 legacy &= ~VIA_FUNC_MIDI_PNP; /* disable PCI I/O 2 */
2094 legacy &= ~VIA_FUNC_ENABLE_MIDI;
2095 mpu_port = 0;
2096 }
2097
2098 pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE, legacy);
2099 pci_write_config_byte(chip->pci, VIA_PNP_CONTROL, legacy_cfg);
2100 if (chip->mpu_res) {
2101 if (snd_mpu401_uart_new(chip->card, 0, MPU401_HW_VIA686A,
2102 mpu_port, MPU401_INFO_INTEGRATED |
2103 MPU401_INFO_IRQ_HOOK, -1,
2104 &chip->rmidi) < 0) {
2105 printk(KERN_WARNING "unable to initialize MPU-401"
2106 " at 0x%lx, skipping\n", mpu_port);
2107 legacy &= ~VIA_FUNC_ENABLE_MIDI;
2108 } else {
2109 legacy &= ~VIA_FUNC_MIDI_IRQMASK; /* enable MIDI interrupt */
2110 }
2111 pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE, legacy);
2112 }
2113
2114 snd_via686_create_gameport(chip, &legacy);
2115
2116 #ifdef CONFIG_PM_SLEEP
2117 chip->legacy_saved = legacy;
2118 chip->legacy_cfg_saved = legacy_cfg;
2119 #endif
2120
2121 return 0;
2122 }
2123
2124
2125 /*
2126 * proc interface
2127 */
2128 static void snd_via82xx_proc_read(struct snd_info_entry *entry,
2129 struct snd_info_buffer *buffer)
2130 {
2131 struct via82xx *chip = entry->private_data;
2132 int i;
2133
2134 snd_iprintf(buffer, "%s\n\n", chip->card->longname);
2135 for (i = 0; i < 0xa0; i += 4) {
2136 snd_iprintf(buffer, "%02x: %08x\n", i, inl(chip->port + i));
2137 }
2138 }
2139
2140 static void snd_via82xx_proc_init(struct via82xx *chip)
2141 {
2142 struct snd_info_entry *entry;
2143
2144 if (! snd_card_proc_new(chip->card, "via82xx", &entry))
2145 snd_info_set_text_ops(entry, chip, snd_via82xx_proc_read);
2146 }
2147
2148 /*
2149 *
2150 */
2151
2152 static int snd_via82xx_chip_init(struct via82xx *chip)
2153 {
2154 unsigned int val;
2155 unsigned long end_time;
2156 unsigned char pval;
2157
2158 #if 0 /* broken on K7M? */
2159 if (chip->chip_type == TYPE_VIA686)
2160 /* disable all legacy ports */
2161 pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE, 0);
2162 #endif
2163 pci_read_config_byte(chip->pci, VIA_ACLINK_STAT, &pval);
2164 if (! (pval & VIA_ACLINK_C00_READY)) { /* codec not ready? */
2165 /* deassert ACLink reset, force SYNC */
2166 pci_write_config_byte(chip->pci, VIA_ACLINK_CTRL,
2167 VIA_ACLINK_CTRL_ENABLE |
2168 VIA_ACLINK_CTRL_RESET |
2169 VIA_ACLINK_CTRL_SYNC);
2170 udelay(100);
2171 #if 1 /* FIXME: should we do full reset here for all chip models? */
2172 pci_write_config_byte(chip->pci, VIA_ACLINK_CTRL, 0x00);
2173 udelay(100);
2174 #else
2175 /* deassert ACLink reset, force SYNC (warm AC'97 reset) */
2176 pci_write_config_byte(chip->pci, VIA_ACLINK_CTRL,
2177 VIA_ACLINK_CTRL_RESET|VIA_ACLINK_CTRL_SYNC);
2178 udelay(2);
2179 #endif
2180 /* ACLink on, deassert ACLink reset, VSR, SGD data out */
2181 /* note - FM data out has trouble with non VRA codecs !! */
2182 pci_write_config_byte(chip->pci, VIA_ACLINK_CTRL, VIA_ACLINK_CTRL_INIT);
2183 udelay(100);
2184 }
2185
2186 /* Make sure VRA is enabled, in case we didn't do a
2187 * complete codec reset, above */
2188 pci_read_config_byte(chip->pci, VIA_ACLINK_CTRL, &pval);
2189 if ((pval & VIA_ACLINK_CTRL_INIT) != VIA_ACLINK_CTRL_INIT) {
2190 /* ACLink on, deassert ACLink reset, VSR, SGD data out */
2191 /* note - FM data out has trouble with non VRA codecs !! */
2192 pci_write_config_byte(chip->pci, VIA_ACLINK_CTRL, VIA_ACLINK_CTRL_INIT);
2193 udelay(100);
2194 }
2195
2196 /* wait until codec ready */
2197 end_time = jiffies + msecs_to_jiffies(750);
2198 do {
2199 pci_read_config_byte(chip->pci, VIA_ACLINK_STAT, &pval);
2200 if (pval & VIA_ACLINK_C00_READY) /* primary codec ready */
2201 break;
2202 schedule_timeout_uninterruptible(1);
2203 } while (time_before(jiffies, end_time));
2204
2205 if ((val = snd_via82xx_codec_xread(chip)) & VIA_REG_AC97_BUSY)
2206 snd_printk(KERN_ERR "AC'97 codec is not ready [0x%x]\n", val);
2207
2208 #if 0 /* FIXME: we don't support the second codec yet so skip the detection now.. */
2209 snd_via82xx_codec_xwrite(chip, VIA_REG_AC97_READ |
2210 VIA_REG_AC97_SECONDARY_VALID |
2211 (VIA_REG_AC97_CODEC_ID_SECONDARY << VIA_REG_AC97_CODEC_ID_SHIFT));
2212 end_time = jiffies + msecs_to_jiffies(750);
2213 snd_via82xx_codec_xwrite(chip, VIA_REG_AC97_READ |
2214 VIA_REG_AC97_SECONDARY_VALID |
2215 (VIA_REG_AC97_CODEC_ID_SECONDARY << VIA_REG_AC97_CODEC_ID_SHIFT));
2216 do {
2217 if ((val = snd_via82xx_codec_xread(chip)) & VIA_REG_AC97_SECONDARY_VALID) {
2218 chip->ac97_secondary = 1;
2219 goto __ac97_ok2;
2220 }
2221 schedule_timeout_uninterruptible(1);
2222 } while (time_before(jiffies, end_time));
2223 /* This is ok, the most of motherboards have only one codec */
2224
2225 __ac97_ok2:
2226 #endif
2227
2228 if (chip->chip_type == TYPE_VIA686) {
2229 /* route FM trap to IRQ, disable FM trap */
2230 pci_write_config_byte(chip->pci, VIA_FM_NMI_CTRL, 0);
2231 /* disable all GPI interrupts */
2232 outl(0, VIAREG(chip, GPI_INTR));
2233 }
2234
2235 if (chip->chip_type != TYPE_VIA686) {
2236 /* Workaround for Award BIOS bug:
2237 * DXS channels don't work properly with VRA if MC97 is disabled.
2238 */
2239 struct pci_dev *pci;
2240 pci = pci_get_device(0x1106, 0x3068, NULL); /* MC97 */
2241 if (pci) {
2242 unsigned char data;
2243 pci_read_config_byte(pci, 0x44, &data);
2244 pci_write_config_byte(pci, 0x44, data | 0x40);
2245 pci_dev_put(pci);
2246 }
2247 }
2248
2249 if (chip->chip_type != TYPE_VIA8233A) {
2250 int i, idx;
2251 for (idx = 0; idx < 4; idx++) {
2252 unsigned long port = chip->port + 0x10 * idx;
2253 for (i = 0; i < 2; i++) {
2254 chip->playback_volume[idx][i]=chip->playback_volume_c[i];
2255 outb(chip->playback_volume_c[i],
2256 port + VIA_REG_OFS_PLAYBACK_VOLUME_L + i);
2257 }
2258 }
2259 }
2260
2261 return 0;
2262 }
2263
2264 #ifdef CONFIG_PM_SLEEP
2265 /*
2266 * power management
2267 */
2268 static int snd_via82xx_suspend(struct device *dev)
2269 {
2270 struct pci_dev *pci = to_pci_dev(dev);
2271 struct snd_card *card = dev_get_drvdata(dev);
2272 struct via82xx *chip = card->private_data;
2273 int i;
2274
2275 snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
2276 for (i = 0; i < 2; i++)
2277 snd_pcm_suspend_all(chip->pcms[i]);
2278 for (i = 0; i < chip->num_devs; i++)
2279 snd_via82xx_channel_reset(chip, &chip->devs[i]);
2280 synchronize_irq(chip->irq);
2281 snd_ac97_suspend(chip->ac97);
2282
2283 /* save misc values */
2284 if (chip->chip_type != TYPE_VIA686) {
2285 pci_read_config_byte(chip->pci, VIA8233_SPDIF_CTRL, &chip->spdif_ctrl_saved);
2286 chip->capture_src_saved[0] = inb(chip->port + VIA_REG_CAPTURE_CHANNEL);
2287 chip->capture_src_saved[1] = inb(chip->port + VIA_REG_CAPTURE_CHANNEL + 0x10);
2288 }
2289
2290 pci_disable_device(pci);
2291 pci_save_state(pci);
2292 pci_set_power_state(pci, PCI_D3hot);
2293 return 0;
2294 }
2295
2296 static int snd_via82xx_resume(struct device *dev)
2297 {
2298 struct pci_dev *pci = to_pci_dev(dev);
2299 struct snd_card *card = dev_get_drvdata(dev);
2300 struct via82xx *chip = card->private_data;
2301 int i;
2302
2303 pci_set_power_state(pci, PCI_D0);
2304 pci_restore_state(pci);
2305 if (pci_enable_device(pci) < 0) {
2306 printk(KERN_ERR "via82xx: pci_enable_device failed, "
2307 "disabling device\n");
2308 snd_card_disconnect(card);
2309 return -EIO;
2310 }
2311 pci_set_master(pci);
2312
2313 snd_via82xx_chip_init(chip);
2314
2315 if (chip->chip_type == TYPE_VIA686) {
2316 if (chip->mpu_port_saved)
2317 pci_write_config_dword(chip->pci, 0x18, chip->mpu_port_saved | 0x01);
2318 pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE, chip->legacy_saved);
2319 pci_write_config_byte(chip->pci, VIA_PNP_CONTROL, chip->legacy_cfg_saved);
2320 } else {
2321 pci_write_config_byte(chip->pci, VIA8233_SPDIF_CTRL, chip->spdif_ctrl_saved);
2322 outb(chip->capture_src_saved[0], chip->port + VIA_REG_CAPTURE_CHANNEL);
2323 outb(chip->capture_src_saved[1], chip->port + VIA_REG_CAPTURE_CHANNEL + 0x10);
2324 }
2325
2326 snd_ac97_resume(chip->ac97);
2327
2328 for (i = 0; i < chip->num_devs; i++)
2329 snd_via82xx_channel_reset(chip, &chip->devs[i]);
2330
2331 snd_power_change_state(card, SNDRV_CTL_POWER_D0);
2332 return 0;
2333 }
2334
2335 static SIMPLE_DEV_PM_OPS(snd_via82xx_pm, snd_via82xx_suspend, snd_via82xx_resume);
2336 #define SND_VIA82XX_PM_OPS &snd_via82xx_pm
2337 #else
2338 #define SND_VIA82XX_PM_OPS NULL
2339 #endif /* CONFIG_PM_SLEEP */
2340
2341 static int snd_via82xx_free(struct via82xx *chip)
2342 {
2343 unsigned int i;
2344
2345 if (chip->irq < 0)
2346 goto __end_hw;
2347 /* disable interrupts */
2348 for (i = 0; i < chip->num_devs; i++)
2349 snd_via82xx_channel_reset(chip, &chip->devs[i]);
2350
2351 if (chip->irq >= 0)
2352 free_irq(chip->irq, chip);
2353 __end_hw:
2354 release_and_free_resource(chip->mpu_res);
2355 pci_release_regions(chip->pci);
2356
2357 if (chip->chip_type == TYPE_VIA686) {
2358 snd_via686_free_gameport(chip);
2359 pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE, chip->old_legacy);
2360 pci_write_config_byte(chip->pci, VIA_PNP_CONTROL, chip->old_legacy_cfg);
2361 }
2362 pci_disable_device(chip->pci);
2363 kfree(chip);
2364 return 0;
2365 }
2366
2367 static int snd_via82xx_dev_free(struct snd_device *device)
2368 {
2369 struct via82xx *chip = device->device_data;
2370 return snd_via82xx_free(chip);
2371 }
2372
2373 static int snd_via82xx_create(struct snd_card *card,
2374 struct pci_dev *pci,
2375 int chip_type,
2376 int revision,
2377 unsigned int ac97_clock,
2378 struct via82xx **r_via)
2379 {
2380 struct via82xx *chip;
2381 int err;
2382 static struct snd_device_ops ops = {
2383 .dev_free = snd_via82xx_dev_free,
2384 };
2385
2386 if ((err = pci_enable_device(pci)) < 0)
2387 return err;
2388
2389 if ((chip = kzalloc(sizeof(*chip), GFP_KERNEL)) == NULL) {
2390 pci_disable_device(pci);
2391 return -ENOMEM;
2392 }
2393
2394 chip->chip_type = chip_type;
2395 chip->revision = revision;
2396
2397 spin_lock_init(&chip->reg_lock);
2398 spin_lock_init(&chip->rates[0].lock);
2399 spin_lock_init(&chip->rates[1].lock);
2400 chip->card = card;
2401 chip->pci = pci;
2402 chip->irq = -1;
2403
2404 pci_read_config_byte(pci, VIA_FUNC_ENABLE, &chip->old_legacy);
2405 pci_read_config_byte(pci, VIA_PNP_CONTROL, &chip->old_legacy_cfg);
2406 pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE,
2407 chip->old_legacy & ~(VIA_FUNC_ENABLE_SB|VIA_FUNC_ENABLE_FM));
2408
2409 if ((err = pci_request_regions(pci, card->driver)) < 0) {
2410 kfree(chip);
2411 pci_disable_device(pci);
2412 return err;
2413 }
2414 chip->port = pci_resource_start(pci, 0);
2415 if (request_irq(pci->irq,
2416 chip_type == TYPE_VIA8233 ?
2417 snd_via8233_interrupt : snd_via686_interrupt,
2418 IRQF_SHARED,
2419 KBUILD_MODNAME, chip)) {
2420 snd_printk(KERN_ERR "unable to grab IRQ %d\n", pci->irq);
2421 snd_via82xx_free(chip);
2422 return -EBUSY;
2423 }
2424 chip->irq = pci->irq;
2425 if (ac97_clock >= 8000 && ac97_clock <= 48000)
2426 chip->ac97_clock = ac97_clock;
2427 synchronize_irq(chip->irq);
2428
2429 if ((err = snd_via82xx_chip_init(chip)) < 0) {
2430 snd_via82xx_free(chip);
2431 return err;
2432 }
2433
2434 if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
2435 snd_via82xx_free(chip);
2436 return err;
2437 }
2438
2439 /* The 8233 ac97 controller does not implement the master bit
2440 * in the pci command register. IMHO this is a violation of the PCI spec.
2441 * We call pci_set_master here because it does not hurt. */
2442 pci_set_master(pci);
2443
2444 snd_card_set_dev(card, &pci->dev);
2445
2446 *r_via = chip;
2447 return 0;
2448 }
2449
2450 struct via823x_info {
2451 int revision;
2452 char *name;
2453 int type;
2454 };
2455 static struct via823x_info via823x_cards[] = {
2456 { VIA_REV_PRE_8233, "VIA 8233-Pre", TYPE_VIA8233 },
2457 { VIA_REV_8233C, "VIA 8233C", TYPE_VIA8233 },
2458 { VIA_REV_8233, "VIA 8233", TYPE_VIA8233 },
2459 { VIA_REV_8233A, "VIA 8233A", TYPE_VIA8233A },
2460 { VIA_REV_8235, "VIA 8235", TYPE_VIA8233 },
2461 { VIA_REV_8237, "VIA 8237", TYPE_VIA8233 },
2462 { VIA_REV_8251, "VIA 8251", TYPE_VIA8233 },
2463 };
2464
2465 /*
2466 * auto detection of DXS channel supports.
2467 */
2468
2469 static struct snd_pci_quirk dxs_whitelist[] = {
2470 SND_PCI_QUIRK(0x1005, 0x4710, "Avance Logic Mobo", VIA_DXS_ENABLE),
2471 SND_PCI_QUIRK(0x1019, 0x0996, "ESC Mobo", VIA_DXS_48K),
2472 SND_PCI_QUIRK(0x1019, 0x0a81, "ECS K7VTA3 v8.0", VIA_DXS_NO_VRA),
2473 SND_PCI_QUIRK(0x1019, 0x0a85, "ECS L7VMM2", VIA_DXS_NO_VRA),
2474 SND_PCI_QUIRK_VENDOR(0x1019, "ESC K8", VIA_DXS_SRC),
2475 SND_PCI_QUIRK(0x1019, 0xaa01, "ESC K8T890-A", VIA_DXS_SRC),
2476 SND_PCI_QUIRK(0x1025, 0x0033, "Acer Inspire 1353LM", VIA_DXS_NO_VRA),
2477 SND_PCI_QUIRK(0x1025, 0x0046, "Acer Aspire 1524 WLMi", VIA_DXS_SRC),
2478 SND_PCI_QUIRK_VENDOR(0x1043, "ASUS A7/A8", VIA_DXS_NO_VRA),
2479 SND_PCI_QUIRK_VENDOR(0x1071, "Diverse Notebook", VIA_DXS_NO_VRA),
2480 SND_PCI_QUIRK(0x10cf, 0x118e, "FSC Laptop", VIA_DXS_ENABLE),
2481 SND_PCI_QUIRK_VENDOR(0x1106, "ASRock", VIA_DXS_SRC),
2482 SND_PCI_QUIRK(0x1297, 0xa231, "Shuttle AK31v2", VIA_DXS_SRC),
2483 SND_PCI_QUIRK(0x1297, 0xa232, "Shuttle", VIA_DXS_SRC),
2484 SND_PCI_QUIRK(0x1297, 0xc160, "Shuttle Sk41G", VIA_DXS_SRC),
2485 SND_PCI_QUIRK(0x1458, 0xa002, "Gigabyte GA-7VAXP", VIA_DXS_ENABLE),
2486 SND_PCI_QUIRK(0x1462, 0x3800, "MSI KT266", VIA_DXS_ENABLE),
2487 SND_PCI_QUIRK(0x1462, 0x7120, "MSI KT4V", VIA_DXS_ENABLE),
2488 SND_PCI_QUIRK(0x1462, 0x7142, "MSI K8MM-V", VIA_DXS_ENABLE),
2489 SND_PCI_QUIRK_VENDOR(0x1462, "MSI Mobo", VIA_DXS_SRC),
2490 SND_PCI_QUIRK(0x147b, 0x1401, "ABIT KD7(-RAID)", VIA_DXS_ENABLE),
2491 SND_PCI_QUIRK(0x147b, 0x1411, "ABIT VA-20", VIA_DXS_ENABLE),
2492 SND_PCI_QUIRK(0x147b, 0x1413, "ABIT KV8 Pro", VIA_DXS_ENABLE),
2493 SND_PCI_QUIRK(0x147b, 0x1415, "ABIT AV8", VIA_DXS_NO_VRA),
2494 SND_PCI_QUIRK(0x14ff, 0x0403, "Twinhead mobo", VIA_DXS_ENABLE),
2495 SND_PCI_QUIRK(0x14ff, 0x0408, "Twinhead laptop", VIA_DXS_SRC),
2496 SND_PCI_QUIRK(0x1558, 0x4701, "Clevo D470", VIA_DXS_SRC),
2497 SND_PCI_QUIRK(0x1584, 0x8120, "Diverse Laptop", VIA_DXS_ENABLE),
2498 SND_PCI_QUIRK(0x1584, 0x8123, "Targa/Uniwill", VIA_DXS_NO_VRA),
2499 SND_PCI_QUIRK(0x161f, 0x202b, "Amira Notebook", VIA_DXS_NO_VRA),
2500 SND_PCI_QUIRK(0x161f, 0x2032, "m680x machines", VIA_DXS_48K),
2501 SND_PCI_QUIRK(0x1631, 0xe004, "PB EasyNote 3174", VIA_DXS_ENABLE),
2502 SND_PCI_QUIRK(0x1695, 0x3005, "EPoX EP-8K9A", VIA_DXS_ENABLE),
2503 SND_PCI_QUIRK_VENDOR(0x1695, "EPoX mobo", VIA_DXS_SRC),
2504 SND_PCI_QUIRK_VENDOR(0x16f3, "Jetway K8", VIA_DXS_SRC),
2505 SND_PCI_QUIRK_VENDOR(0x1734, "FSC Laptop", VIA_DXS_SRC),
2506 SND_PCI_QUIRK(0x1849, 0x3059, "ASRock K7VM2", VIA_DXS_NO_VRA),
2507 SND_PCI_QUIRK_VENDOR(0x1849, "ASRock mobo", VIA_DXS_SRC),
2508 SND_PCI_QUIRK(0x1919, 0x200a, "Soltek SL-K8", VIA_DXS_NO_VRA),
2509 SND_PCI_QUIRK(0x4005, 0x4710, "MSI K7T266", VIA_DXS_SRC),
2510 { } /* terminator */
2511 };
2512
2513 static int check_dxs_list(struct pci_dev *pci, int revision)
2514 {
2515 const struct snd_pci_quirk *w;
2516
2517 w = snd_pci_quirk_lookup(pci, dxs_whitelist);
2518 if (w) {
2519 snd_printdd(KERN_INFO "via82xx: DXS white list for %s found\n",
2520 snd_pci_quirk_name(w));
2521 return w->value;
2522 }
2523
2524 /* for newer revision, default to DXS_SRC */
2525 if (revision >= VIA_REV_8235)
2526 return VIA_DXS_SRC;
2527
2528 /*
2529 * not detected, try 48k rate only to be sure.
2530 */
2531 printk(KERN_INFO "via82xx: Assuming DXS channels with 48k fixed sample rate.\n");
2532 printk(KERN_INFO " Please try dxs_support=5 option\n");
2533 printk(KERN_INFO " and report if it works on your machine.\n");
2534 printk(KERN_INFO " For more details, read ALSA-Configuration.txt.\n");
2535 return VIA_DXS_48K;
2536 };
2537
2538 static int snd_via82xx_probe(struct pci_dev *pci,
2539 const struct pci_device_id *pci_id)
2540 {
2541 struct snd_card *card;
2542 struct via82xx *chip;
2543 int chip_type = 0, card_type;
2544 unsigned int i;
2545 int err;
2546
2547 err = snd_card_create(index, id, THIS_MODULE, 0, &card);
2548 if (err < 0)
2549 return err;
2550
2551 card_type = pci_id->driver_data;
2552 switch (card_type) {
2553 case TYPE_CARD_VIA686:
2554 strcpy(card->driver, "VIA686A");
2555 sprintf(card->shortname, "VIA 82C686A/B rev%x", pci->revision);
2556 chip_type = TYPE_VIA686;
2557 break;
2558 case TYPE_CARD_VIA8233:
2559 chip_type = TYPE_VIA8233;
2560 sprintf(card->shortname, "VIA 823x rev%x", pci->revision);
2561 for (i = 0; i < ARRAY_SIZE(via823x_cards); i++) {
2562 if (pci->revision == via823x_cards[i].revision) {
2563 chip_type = via823x_cards[i].type;
2564 strcpy(card->shortname, via823x_cards[i].name);
2565 break;
2566 }
2567 }
2568 if (chip_type != TYPE_VIA8233A) {
2569 if (dxs_support == VIA_DXS_AUTO)
2570 dxs_support = check_dxs_list(pci, pci->revision);
2571 /* force to use VIA8233 or 8233A model according to
2572 * dxs_support module option
2573 */
2574 if (dxs_support == VIA_DXS_DISABLE)
2575 chip_type = TYPE_VIA8233A;
2576 else
2577 chip_type = TYPE_VIA8233;
2578 }
2579 if (chip_type == TYPE_VIA8233A)
2580 strcpy(card->driver, "VIA8233A");
2581 else if (pci->revision >= VIA_REV_8237)
2582 strcpy(card->driver, "VIA8237"); /* no slog assignment */
2583 else
2584 strcpy(card->driver, "VIA8233");
2585 break;
2586 default:
2587 snd_printk(KERN_ERR "invalid card type %d\n", card_type);
2588 err = -EINVAL;
2589 goto __error;
2590 }
2591
2592 if ((err = snd_via82xx_create(card, pci, chip_type, pci->revision,
2593 ac97_clock, &chip)) < 0)
2594 goto __error;
2595 card->private_data = chip;
2596 if ((err = snd_via82xx_mixer_new(chip, ac97_quirk)) < 0)
2597 goto __error;
2598
2599 if (chip_type == TYPE_VIA686) {
2600 if ((err = snd_via686_pcm_new(chip)) < 0 ||
2601 (err = snd_via686_init_misc(chip)) < 0)
2602 goto __error;
2603 } else {
2604 if (chip_type == TYPE_VIA8233A) {
2605 if ((err = snd_via8233a_pcm_new(chip)) < 0)
2606 goto __error;
2607 // chip->dxs_fixed = 1; /* FIXME: use 48k for DXS #3? */
2608 } else {
2609 if ((err = snd_via8233_pcm_new(chip)) < 0)
2610 goto __error;
2611 if (dxs_support == VIA_DXS_48K)
2612 chip->dxs_fixed = 1;
2613 else if (dxs_support == VIA_DXS_NO_VRA)
2614 chip->no_vra = 1;
2615 else if (dxs_support == VIA_DXS_SRC) {
2616 chip->no_vra = 1;
2617 chip->dxs_src = 1;
2618 }
2619 }
2620 if ((err = snd_via8233_init_misc(chip)) < 0)
2621 goto __error;
2622 }
2623
2624 /* disable interrupts */
2625 for (i = 0; i < chip->num_devs; i++)
2626 snd_via82xx_channel_reset(chip, &chip->devs[i]);
2627
2628 snprintf(card->longname, sizeof(card->longname),
2629 "%s with %s at %#lx, irq %d", card->shortname,
2630 snd_ac97_get_short_name(chip->ac97), chip->port, chip->irq);
2631
2632 snd_via82xx_proc_init(chip);
2633
2634 if ((err = snd_card_register(card)) < 0) {
2635 snd_card_free(card);
2636 return err;
2637 }
2638 pci_set_drvdata(pci, card);
2639 return 0;
2640
2641 __error:
2642 snd_card_free(card);
2643 return err;
2644 }
2645
2646 static void snd_via82xx_remove(struct pci_dev *pci)
2647 {
2648 snd_card_free(pci_get_drvdata(pci));
2649 pci_set_drvdata(pci, NULL);
2650 }
2651
2652 static struct pci_driver via82xx_driver = {
2653 .name = KBUILD_MODNAME,
2654 .id_table = snd_via82xx_ids,
2655 .probe = snd_via82xx_probe,
2656 .remove = snd_via82xx_remove,
2657 .driver = {
2658 .pm = SND_VIA82XX_PM_OPS,
2659 },
2660 };
2661
2662 module_pci_driver(via82xx_driver);
kernel source for telekom puls (alcatel/mediatek)