?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
mm, hugetlb: remove unnecessary lower bound on sysctl handlers"?
[linux/fpc-iii.git] / sound / pci / via82xx.c
blobe088467fb7366d3b33c751815417fe58d19dee67
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 const struct pci_device_id 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 dev_err(&pci->dev, "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 dev_dbg(&pci->dev,
478 "tbl %d: at %d size %d (rest %d)\n",
479 idx, ofs, r, rest);
480 */
481 ((u32 *)dev->table.area)[(idx<<1) + 1] = cpu_to_le32(r | flag);
482 dev->idx_table[idx].offset = ofs;
483 dev->idx_table[idx].size = r;
484 ofs += r;
485 idx++;
486 } while (rest > 0);
487 }
488 dev->tbl_entries = idx;
489 dev->bufsize = periods * fragsize;
490 dev->bufsize2 = dev->bufsize / 2;
491 dev->fragsize = fragsize;
492 return 0;
493 }
494
495
496 static int clean_via_table(struct viadev *dev, struct snd_pcm_substream *substream,
497 struct pci_dev *pci)
498 {
499 if (dev->table.area) {
500 snd_dma_free_pages(&dev->table);
501 dev->table.area = NULL;
502 }
503 kfree(dev->idx_table);
504 dev->idx_table = NULL;
505 return 0;
506 }
507
508 /*
509 * Basic I/O
510 */
511
512 static inline unsigned int snd_via82xx_codec_xread(struct via82xx *chip)
513 {
514 return inl(VIAREG(chip, AC97));
515 }
516
517 static inline void snd_via82xx_codec_xwrite(struct via82xx *chip, unsigned int val)
518 {
519 outl(val, VIAREG(chip, AC97));
520 }
521
522 static int snd_via82xx_codec_ready(struct via82xx *chip, int secondary)
523 {
524 unsigned int timeout = 1000; /* 1ms */
525 unsigned int val;
526
527 while (timeout-- > 0) {
528 udelay(1);
529 if (!((val = snd_via82xx_codec_xread(chip)) & VIA_REG_AC97_BUSY))
530 return val & 0xffff;
531 }
532 dev_err(chip->card->dev, "codec_ready: codec %i is not ready [0x%x]\n",
533 secondary, snd_via82xx_codec_xread(chip));
534 return -EIO;
535 }
536
537 static int snd_via82xx_codec_valid(struct via82xx *chip, int secondary)
538 {
539 unsigned int timeout = 1000; /* 1ms */
540 unsigned int val, val1;
541 unsigned int stat = !secondary ? VIA_REG_AC97_PRIMARY_VALID :
542 VIA_REG_AC97_SECONDARY_VALID;
543
544 while (timeout-- > 0) {
545 val = snd_via82xx_codec_xread(chip);
546 val1 = val & (VIA_REG_AC97_BUSY | stat);
547 if (val1 == stat)
548 return val & 0xffff;
549 udelay(1);
550 }
551 return -EIO;
552 }
553
554 static void snd_via82xx_codec_wait(struct snd_ac97 *ac97)
555 {
556 struct via82xx *chip = ac97->private_data;
557 int err;
558 err = snd_via82xx_codec_ready(chip, ac97->num);
559 /* here we need to wait fairly for long time.. */
560 if (!nodelay)
561 msleep(500);
562 }
563
564 static void snd_via82xx_codec_write(struct snd_ac97 *ac97,
565 unsigned short reg,
566 unsigned short val)
567 {
568 struct via82xx *chip = ac97->private_data;
569 unsigned int xval;
570
571 xval = !ac97->num ? VIA_REG_AC97_CODEC_ID_PRIMARY : VIA_REG_AC97_CODEC_ID_SECONDARY;
572 xval <<= VIA_REG_AC97_CODEC_ID_SHIFT;
573 xval |= reg << VIA_REG_AC97_CMD_SHIFT;
574 xval |= val << VIA_REG_AC97_DATA_SHIFT;
575 snd_via82xx_codec_xwrite(chip, xval);
576 snd_via82xx_codec_ready(chip, ac97->num);
577 }
578
579 static unsigned short snd_via82xx_codec_read(struct snd_ac97 *ac97, unsigned short reg)
580 {
581 struct via82xx *chip = ac97->private_data;
582 unsigned int xval, val = 0xffff;
583 int again = 0;
584
585 xval = ac97->num << VIA_REG_AC97_CODEC_ID_SHIFT;
586 xval |= ac97->num ? VIA_REG_AC97_SECONDARY_VALID : VIA_REG_AC97_PRIMARY_VALID;
587 xval |= VIA_REG_AC97_READ;
588 xval |= (reg & 0x7f) << VIA_REG_AC97_CMD_SHIFT;
589 while (1) {
590 if (again++ > 3) {
591 dev_err(chip->card->dev,
592 "codec_read: codec %i is not valid [0x%x]\n",
593 ac97->num, snd_via82xx_codec_xread(chip));
594 return 0xffff;
595 }
596 snd_via82xx_codec_xwrite(chip, xval);
597 udelay (20);
598 if (snd_via82xx_codec_valid(chip, ac97->num) >= 0) {
599 udelay(25);
600 val = snd_via82xx_codec_xread(chip);
601 break;
602 }
603 }
604 return val & 0xffff;
605 }
606
607 static void snd_via82xx_channel_reset(struct via82xx *chip, struct viadev *viadev)
608 {
609 outb(VIA_REG_CTRL_PAUSE | VIA_REG_CTRL_TERMINATE | VIA_REG_CTRL_RESET,
610 VIADEV_REG(viadev, OFFSET_CONTROL));
611 inb(VIADEV_REG(viadev, OFFSET_CONTROL));
612 udelay(50);
613 /* disable interrupts */
614 outb(0x00, VIADEV_REG(viadev, OFFSET_CONTROL));
615 /* clear interrupts */
616 outb(0x03, VIADEV_REG(viadev, OFFSET_STATUS));
617 outb(0x00, VIADEV_REG(viadev, OFFSET_TYPE)); /* for via686 */
618 // outl(0, VIADEV_REG(viadev, OFFSET_CURR_PTR));
619 viadev->lastpos = 0;
620 viadev->hwptr_done = 0;
621 }
622
623
624 /*
625 * Interrupt handler
626 * Used for 686 and 8233A
627 */
628 static irqreturn_t snd_via686_interrupt(int irq, void *dev_id)
629 {
630 struct via82xx *chip = dev_id;
631 unsigned int status;
632 unsigned int i;
633
634 status = inl(VIAREG(chip, SGD_SHADOW));
635 if (! (status & chip->intr_mask)) {
636 if (chip->rmidi)
637 /* check mpu401 interrupt */
638 return snd_mpu401_uart_interrupt(irq, chip->rmidi->private_data);
639 return IRQ_NONE;
640 }
641
642 /* check status for each stream */
643 spin_lock(&chip->reg_lock);
644 for (i = 0; i < chip->num_devs; i++) {
645 struct viadev *viadev = &chip->devs[i];
646 unsigned char c_status = inb(VIADEV_REG(viadev, OFFSET_STATUS));
647 if (! (c_status & (VIA_REG_STAT_EOL|VIA_REG_STAT_FLAG|VIA_REG_STAT_STOPPED)))
648 continue;
649 if (viadev->substream && viadev->running) {
650 /*
651 * Update hwptr_done based on 'period elapsed'
652 * interrupts. We'll use it, when the chip returns 0
653 * for OFFSET_CURR_COUNT.
654 */
655 if (c_status & VIA_REG_STAT_EOL)
656 viadev->hwptr_done = 0;
657 else
658 viadev->hwptr_done += viadev->fragsize;
659 viadev->in_interrupt = c_status;
660 spin_unlock(&chip->reg_lock);
661 snd_pcm_period_elapsed(viadev->substream);
662 spin_lock(&chip->reg_lock);
663 viadev->in_interrupt = 0;
664 }
665 outb(c_status, VIADEV_REG(viadev, OFFSET_STATUS)); /* ack */
666 }
667 spin_unlock(&chip->reg_lock);
668 return IRQ_HANDLED;
669 }
670
671 /*
672 * Interrupt handler
673 */
674 static irqreturn_t snd_via8233_interrupt(int irq, void *dev_id)
675 {
676 struct via82xx *chip = dev_id;
677 unsigned int status;
678 unsigned int i;
679 int irqreturn = 0;
680
681 /* check status for each stream */
682 spin_lock(&chip->reg_lock);
683 status = inl(VIAREG(chip, SGD_SHADOW));
684
685 for (i = 0; i < chip->num_devs; i++) {
686 struct viadev *viadev = &chip->devs[i];
687 struct snd_pcm_substream *substream;
688 unsigned char c_status, shadow_status;
689
690 shadow_status = (status >> viadev->shadow_shift) &
691 (VIA8233_SHADOW_STAT_ACTIVE|VIA_REG_STAT_EOL|
692 VIA_REG_STAT_FLAG);
693 c_status = shadow_status & (VIA_REG_STAT_EOL|VIA_REG_STAT_FLAG);
694 if (!c_status)
695 continue;
696
697 substream = viadev->substream;
698 if (substream && viadev->running) {
699 /*
700 * Update hwptr_done based on 'period elapsed'
701 * interrupts. We'll use it, when the chip returns 0
702 * for OFFSET_CURR_COUNT.
703 */
704 if (c_status & VIA_REG_STAT_EOL)
705 viadev->hwptr_done = 0;
706 else
707 viadev->hwptr_done += viadev->fragsize;
708 viadev->in_interrupt = c_status;
709 if (shadow_status & VIA8233_SHADOW_STAT_ACTIVE)
710 viadev->in_interrupt |= VIA_REG_STAT_ACTIVE;
711 spin_unlock(&chip->reg_lock);
712
713 snd_pcm_period_elapsed(substream);
714
715 spin_lock(&chip->reg_lock);
716 viadev->in_interrupt = 0;
717 }
718 outb(c_status, VIADEV_REG(viadev, OFFSET_STATUS)); /* ack */
719 irqreturn = 1;
720 }
721 spin_unlock(&chip->reg_lock);
722 return IRQ_RETVAL(irqreturn);
723 }
724
725 /*
726 * PCM callbacks
727 */
728
729 /*
730 * trigger callback
731 */
732 static int snd_via82xx_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
733 {
734 struct via82xx *chip = snd_pcm_substream_chip(substream);
735 struct viadev *viadev = substream->runtime->private_data;
736 unsigned char val;
737
738 if (chip->chip_type != TYPE_VIA686)
739 val = VIA_REG_CTRL_INT;
740 else
741 val = 0;
742 switch (cmd) {
743 case SNDRV_PCM_TRIGGER_START:
744 case SNDRV_PCM_TRIGGER_RESUME:
745 val |= VIA_REG_CTRL_START;
746 viadev->running = 1;
747 break;
748 case SNDRV_PCM_TRIGGER_STOP:
749 case SNDRV_PCM_TRIGGER_SUSPEND:
750 val = VIA_REG_CTRL_TERMINATE;
751 viadev->running = 0;
752 break;
753 case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
754 val |= VIA_REG_CTRL_PAUSE;
755 viadev->running = 0;
756 break;
757 case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
758 viadev->running = 1;
759 break;
760 default:
761 return -EINVAL;
762 }
763 outb(val, VIADEV_REG(viadev, OFFSET_CONTROL));
764 if (cmd == SNDRV_PCM_TRIGGER_STOP)
765 snd_via82xx_channel_reset(chip, viadev);
766 return 0;
767 }
768
769
770 /*
771 * pointer callbacks
772 */
773
774 /*
775 * calculate the linear position at the given sg-buffer index and the rest count
776 */
777
778 #define check_invalid_pos(viadev,pos) \
779 ((pos) < viadev->lastpos && ((pos) >= viadev->bufsize2 ||\
780 viadev->lastpos < viadev->bufsize2))
781
782 static inline unsigned int calc_linear_pos(struct via82xx *chip,
783 struct viadev *viadev,
784 unsigned int idx,
785 unsigned int count)
786 {
787 unsigned int size, base, res;
788
789 size = viadev->idx_table[idx].size;
790 base = viadev->idx_table[idx].offset;
791 res = base + size - count;
792 if (res >= viadev->bufsize)
793 res -= viadev->bufsize;
794
795 /* check the validity of the calculated position */
796 if (size < count) {
797 dev_dbg(chip->card->dev,
798 "invalid via82xx_cur_ptr (size = %d, count = %d)\n",
799 (int)size, (int)count);
800 res = viadev->lastpos;
801 } else {
802 if (! count) {
803 /* Some mobos report count = 0 on the DMA boundary,
804 * i.e. count = size indeed.
805 * Let's check whether this step is above the expected size.
806 */
807 int delta = res - viadev->lastpos;
808 if (delta < 0)
809 delta += viadev->bufsize;
810 if ((unsigned int)delta > viadev->fragsize)
811 res = base;
812 }
813 if (check_invalid_pos(viadev, res)) {
814 #ifdef POINTER_DEBUG
815 dev_dbg(chip->card->dev,
816 "fail: idx = %i/%i, lastpos = 0x%x, bufsize2 = 0x%x, offsize = 0x%x, size = 0x%x, count = 0x%x\n",
817 idx, viadev->tbl_entries,
818 viadev->lastpos, viadev->bufsize2,
819 viadev->idx_table[idx].offset,
820 viadev->idx_table[idx].size, count);
821 #endif
822 /* count register returns full size when end of buffer is reached */
823 res = base + size;
824 if (check_invalid_pos(viadev, res)) {
825 dev_dbg(chip->card->dev,
826 "invalid via82xx_cur_ptr (2), using last valid pointer\n");
827 res = viadev->lastpos;
828 }
829 }
830 }
831 return res;
832 }
833
834 /*
835 * get the current pointer on via686
836 */
837 static snd_pcm_uframes_t snd_via686_pcm_pointer(struct snd_pcm_substream *substream)
838 {
839 struct via82xx *chip = snd_pcm_substream_chip(substream);
840 struct viadev *viadev = substream->runtime->private_data;
841 unsigned int idx, ptr, count, res;
842
843 if (snd_BUG_ON(!viadev->tbl_entries))
844 return 0;
845 if (!(inb(VIADEV_REG(viadev, OFFSET_STATUS)) & VIA_REG_STAT_ACTIVE))
846 return 0;
847
848 spin_lock(&chip->reg_lock);
849 count = inl(VIADEV_REG(viadev, OFFSET_CURR_COUNT)) & 0xffffff;
850 /* The via686a does not have the current index register,
851 * so we need to calculate the index from CURR_PTR.
852 */
853 ptr = inl(VIADEV_REG(viadev, OFFSET_CURR_PTR));
854 if (ptr <= (unsigned int)viadev->table.addr)
855 idx = 0;
856 else /* CURR_PTR holds the address + 8 */
857 idx = ((ptr - (unsigned int)viadev->table.addr) / 8 - 1) % viadev->tbl_entries;
858 res = calc_linear_pos(chip, viadev, idx, count);
859 viadev->lastpos = res; /* remember the last position */
860 spin_unlock(&chip->reg_lock);
861
862 return bytes_to_frames(substream->runtime, res);
863 }
864
865 /*
866 * get the current pointer on via823x
867 */
868 static snd_pcm_uframes_t snd_via8233_pcm_pointer(struct snd_pcm_substream *substream)
869 {
870 struct via82xx *chip = snd_pcm_substream_chip(substream);
871 struct viadev *viadev = substream->runtime->private_data;
872 unsigned int idx, count, res;
873 int status;
874
875 if (snd_BUG_ON(!viadev->tbl_entries))
876 return 0;
877
878 spin_lock(&chip->reg_lock);
879 count = inl(VIADEV_REG(viadev, OFFSET_CURR_COUNT));
880 status = viadev->in_interrupt;
881 if (!status)
882 status = inb(VIADEV_REG(viadev, OFFSET_STATUS));
883
884 /* An apparent bug in the 8251 is worked around by sending a
885 * REG_CTRL_START. */
886 if (chip->revision == VIA_REV_8251 && (status & VIA_REG_STAT_EOL))
887 snd_via82xx_pcm_trigger(substream, SNDRV_PCM_TRIGGER_START);
888
889 if (!(status & VIA_REG_STAT_ACTIVE)) {
890 res = 0;
891 goto unlock;
892 }
893 if (count & 0xffffff) {
894 idx = count >> 24;
895 if (idx >= viadev->tbl_entries) {
896 #ifdef POINTER_DEBUG
897 dev_dbg(chip->card->dev,
898 "fail: invalid idx = %i/%i\n", idx,
899 viadev->tbl_entries);
900 #endif
901 res = viadev->lastpos;
902 } else {
903 count &= 0xffffff;
904 res = calc_linear_pos(chip, viadev, idx, count);
905 }
906 } else {
907 res = viadev->hwptr_done;
908 if (!viadev->in_interrupt) {
909 if (status & VIA_REG_STAT_EOL) {
910 res = 0;
911 } else
912 if (status & VIA_REG_STAT_FLAG) {
913 res += viadev->fragsize;
914 }
915 }
916 }
917 unlock:
918 viadev->lastpos = res;
919 spin_unlock(&chip->reg_lock);
920
921 return bytes_to_frames(substream->runtime, res);
922 }
923
924
925 /*
926 * hw_params callback:
927 * allocate the buffer and build up the buffer description table
928 */
929 static int snd_via82xx_hw_params(struct snd_pcm_substream *substream,
930 struct snd_pcm_hw_params *hw_params)
931 {
932 struct via82xx *chip = snd_pcm_substream_chip(substream);
933 struct viadev *viadev = substream->runtime->private_data;
934 int err;
935
936 err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
937 if (err < 0)
938 return err;
939 err = build_via_table(viadev, substream, chip->pci,
940 params_periods(hw_params),
941 params_period_bytes(hw_params));
942 if (err < 0)
943 return err;
944
945 return 0;
946 }
947
948 /*
949 * hw_free callback:
950 * clean up the buffer description table and release the buffer
951 */
952 static int snd_via82xx_hw_free(struct snd_pcm_substream *substream)
953 {
954 struct via82xx *chip = snd_pcm_substream_chip(substream);
955 struct viadev *viadev = substream->runtime->private_data;
956
957 clean_via_table(viadev, substream, chip->pci);
958 snd_pcm_lib_free_pages(substream);
959 return 0;
960 }
961
962
963 /*
964 * set up the table pointer
965 */
966 static void snd_via82xx_set_table_ptr(struct via82xx *chip, struct viadev *viadev)
967 {
968 snd_via82xx_codec_ready(chip, 0);
969 outl((u32)viadev->table.addr, VIADEV_REG(viadev, OFFSET_TABLE_PTR));
970 udelay(20);
971 snd_via82xx_codec_ready(chip, 0);
972 }
973
974 /*
975 * prepare callback for playback and capture on via686
976 */
977 static void via686_setup_format(struct via82xx *chip, struct viadev *viadev,
978 struct snd_pcm_runtime *runtime)
979 {
980 snd_via82xx_channel_reset(chip, viadev);
981 /* this must be set after channel_reset */
982 snd_via82xx_set_table_ptr(chip, viadev);
983 outb(VIA_REG_TYPE_AUTOSTART |
984 (runtime->format == SNDRV_PCM_FORMAT_S16_LE ? VIA_REG_TYPE_16BIT : 0) |
985 (runtime->channels > 1 ? VIA_REG_TYPE_STEREO : 0) |
986 ((viadev->reg_offset & 0x10) == 0 ? VIA_REG_TYPE_INT_LSAMPLE : 0) |
987 VIA_REG_TYPE_INT_EOL |
988 VIA_REG_TYPE_INT_FLAG, VIADEV_REG(viadev, OFFSET_TYPE));
989 }
990
991 static int snd_via686_playback_prepare(struct snd_pcm_substream *substream)
992 {
993 struct via82xx *chip = snd_pcm_substream_chip(substream);
994 struct viadev *viadev = substream->runtime->private_data;
995 struct snd_pcm_runtime *runtime = substream->runtime;
996
997 snd_ac97_set_rate(chip->ac97, AC97_PCM_FRONT_DAC_RATE, runtime->rate);
998 snd_ac97_set_rate(chip->ac97, AC97_SPDIF, runtime->rate);
999 via686_setup_format(chip, viadev, runtime);
1000 return 0;
1001 }
1002
1003 static int snd_via686_capture_prepare(struct snd_pcm_substream *substream)
1004 {
1005 struct via82xx *chip = snd_pcm_substream_chip(substream);
1006 struct viadev *viadev = substream->runtime->private_data;
1007 struct snd_pcm_runtime *runtime = substream->runtime;
1008
1009 snd_ac97_set_rate(chip->ac97, AC97_PCM_LR_ADC_RATE, runtime->rate);
1010 via686_setup_format(chip, viadev, runtime);
1011 return 0;
1012 }
1013
1014 /*
1015 * lock the current rate
1016 */
1017 static int via_lock_rate(struct via_rate_lock *rec, int rate)
1018 {
1019 int changed = 0;
1020
1021 spin_lock_irq(&rec->lock);
1022 if (rec->rate != rate) {
1023 if (rec->rate && rec->used > 1) /* already set */
1024 changed = -EINVAL;
1025 else {
1026 rec->rate = rate;
1027 changed = 1;
1028 }
1029 }
1030 spin_unlock_irq(&rec->lock);
1031 return changed;
1032 }
1033
1034 /*
1035 * prepare callback for DSX playback on via823x
1036 */
1037 static int snd_via8233_playback_prepare(struct snd_pcm_substream *substream)
1038 {
1039 struct via82xx *chip = snd_pcm_substream_chip(substream);
1040 struct viadev *viadev = substream->runtime->private_data;
1041 struct snd_pcm_runtime *runtime = substream->runtime;
1042 int ac97_rate = chip->dxs_src ? 48000 : runtime->rate;
1043 int rate_changed;
1044 u32 rbits;
1045
1046 if ((rate_changed = via_lock_rate(&chip->rates[0], ac97_rate)) < 0)
1047 return rate_changed;
1048 if (rate_changed)
1049 snd_ac97_set_rate(chip->ac97, AC97_PCM_FRONT_DAC_RATE,
1050 chip->no_vra ? 48000 : runtime->rate);
1051 if (chip->spdif_on && viadev->reg_offset == 0x30)
1052 snd_ac97_set_rate(chip->ac97, AC97_SPDIF, runtime->rate);
1053
1054 if (runtime->rate == 48000)
1055 rbits = 0xfffff;
1056 else
1057 rbits = (0x100000 / 48000) * runtime->rate +
1058 ((0x100000 % 48000) * runtime->rate) / 48000;
1059 snd_BUG_ON(rbits & ~0xfffff);
1060 snd_via82xx_channel_reset(chip, viadev);
1061 snd_via82xx_set_table_ptr(chip, viadev);
1062 outb(chip->playback_volume[viadev->reg_offset / 0x10][0],
1063 VIADEV_REG(viadev, OFS_PLAYBACK_VOLUME_L));
1064 outb(chip->playback_volume[viadev->reg_offset / 0x10][1],
1065 VIADEV_REG(viadev, OFS_PLAYBACK_VOLUME_R));
1066 outl((runtime->format == SNDRV_PCM_FORMAT_S16_LE ? VIA8233_REG_TYPE_16BIT : 0) | /* format */
1067 (runtime->channels > 1 ? VIA8233_REG_TYPE_STEREO : 0) | /* stereo */
1068 rbits | /* rate */
1069 0xff000000, /* STOP index is never reached */
1070 VIADEV_REG(viadev, OFFSET_STOP_IDX));
1071 udelay(20);
1072 snd_via82xx_codec_ready(chip, 0);
1073 return 0;
1074 }
1075
1076 /*
1077 * prepare callback for multi-channel playback on via823x
1078 */
1079 static int snd_via8233_multi_prepare(struct snd_pcm_substream *substream)
1080 {
1081 struct via82xx *chip = snd_pcm_substream_chip(substream);
1082 struct viadev *viadev = substream->runtime->private_data;
1083 struct snd_pcm_runtime *runtime = substream->runtime;
1084 unsigned int slots;
1085 int fmt;
1086
1087 if (via_lock_rate(&chip->rates[0], runtime->rate) < 0)
1088 return -EINVAL;
1089 snd_ac97_set_rate(chip->ac97, AC97_PCM_FRONT_DAC_RATE, runtime->rate);
1090 snd_ac97_set_rate(chip->ac97, AC97_PCM_SURR_DAC_RATE, runtime->rate);
1091 snd_ac97_set_rate(chip->ac97, AC97_PCM_LFE_DAC_RATE, runtime->rate);
1092 snd_ac97_set_rate(chip->ac97, AC97_SPDIF, runtime->rate);
1093 snd_via82xx_channel_reset(chip, viadev);
1094 snd_via82xx_set_table_ptr(chip, viadev);
1095
1096 fmt = (runtime->format == SNDRV_PCM_FORMAT_S16_LE) ?
1097 VIA_REG_MULTPLAY_FMT_16BIT : VIA_REG_MULTPLAY_FMT_8BIT;
1098 fmt |= runtime->channels << 4;
1099 outb(fmt, VIADEV_REG(viadev, OFS_MULTPLAY_FORMAT));
1100 #if 0
1101 if (chip->revision == VIA_REV_8233A)
1102 slots = 0;
1103 else
1104 #endif
1105 {
1106 /* set sample number to slot 3, 4, 7, 8, 6, 9 (for VIA8233/C,8235) */
1107 /* corresponding to FL, FR, RL, RR, C, LFE ?? */
1108 switch (runtime->channels) {
1109 case 1: slots = (1<<0) | (1<<4); break;
1110 case 2: slots = (1<<0) | (2<<4); break;
1111 case 3: slots = (1<<0) | (2<<4) | (5<<8); break;
1112 case 4: slots = (1<<0) | (2<<4) | (3<<8) | (4<<12); break;
1113 case 5: slots = (1<<0) | (2<<4) | (3<<8) | (4<<12) | (5<<16); break;
1114 case 6: slots = (1<<0) | (2<<4) | (3<<8) | (4<<12) | (5<<16) | (6<<20); break;
1115 default: slots = 0; break;
1116 }
1117 }
1118 /* STOP index is never reached */
1119 outl(0xff000000 | slots, VIADEV_REG(viadev, OFFSET_STOP_IDX));
1120 udelay(20);
1121 snd_via82xx_codec_ready(chip, 0);
1122 return 0;
1123 }
1124
1125 /*
1126 * prepare callback for capture on via823x
1127 */
1128 static int snd_via8233_capture_prepare(struct snd_pcm_substream *substream)
1129 {
1130 struct via82xx *chip = snd_pcm_substream_chip(substream);
1131 struct viadev *viadev = substream->runtime->private_data;
1132 struct snd_pcm_runtime *runtime = substream->runtime;
1133
1134 if (via_lock_rate(&chip->rates[1], runtime->rate) < 0)
1135 return -EINVAL;
1136 snd_ac97_set_rate(chip->ac97, AC97_PCM_LR_ADC_RATE, runtime->rate);
1137 snd_via82xx_channel_reset(chip, viadev);
1138 snd_via82xx_set_table_ptr(chip, viadev);
1139 outb(VIA_REG_CAPTURE_FIFO_ENABLE, VIADEV_REG(viadev, OFS_CAPTURE_FIFO));
1140 outl((runtime->format == SNDRV_PCM_FORMAT_S16_LE ? VIA8233_REG_TYPE_16BIT : 0) |
1141 (runtime->channels > 1 ? VIA8233_REG_TYPE_STEREO : 0) |
1142 0xff000000, /* STOP index is never reached */
1143 VIADEV_REG(viadev, OFFSET_STOP_IDX));
1144 udelay(20);
1145 snd_via82xx_codec_ready(chip, 0);
1146 return 0;
1147 }
1148
1149
1150 /*
1151 * pcm hardware definition, identical for both playback and capture
1152 */
1153 static struct snd_pcm_hardware snd_via82xx_hw =
1154 {
1155 .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1156 SNDRV_PCM_INFO_BLOCK_TRANSFER |
1157 SNDRV_PCM_INFO_MMAP_VALID |
1158 /* SNDRV_PCM_INFO_RESUME | */
1159 SNDRV_PCM_INFO_PAUSE),
1160 .formats = SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
1161 .rates = SNDRV_PCM_RATE_48000,
1162 .rate_min = 48000,
1163 .rate_max = 48000,
1164 .channels_min = 1,
1165 .channels_max = 2,
1166 .buffer_bytes_max = VIA_MAX_BUFSIZE,
1167 .period_bytes_min = 32,
1168 .period_bytes_max = VIA_MAX_BUFSIZE / 2,
1169 .periods_min = 2,
1170 .periods_max = VIA_TABLE_SIZE / 2,
1171 .fifo_size = 0,
1172 };
1173
1174
1175 /*
1176 * open callback skeleton
1177 */
1178 static int snd_via82xx_pcm_open(struct via82xx *chip, struct viadev *viadev,
1179 struct snd_pcm_substream *substream)
1180 {
1181 struct snd_pcm_runtime *runtime = substream->runtime;
1182 int err;
1183 struct via_rate_lock *ratep;
1184 bool use_src = false;
1185
1186 runtime->hw = snd_via82xx_hw;
1187
1188 /* set the hw rate condition */
1189 ratep = &chip->rates[viadev->direction];
1190 spin_lock_irq(&ratep->lock);
1191 ratep->used++;
1192 if (chip->spdif_on && viadev->reg_offset == 0x30) {
1193 /* DXS#3 and spdif is on */
1194 runtime->hw.rates = chip->ac97->rates[AC97_RATES_SPDIF];
1195 snd_pcm_limit_hw_rates(runtime);
1196 } else if (chip->dxs_fixed && viadev->reg_offset < 0x40) {
1197 /* fixed DXS playback rate */
1198 runtime->hw.rates = SNDRV_PCM_RATE_48000;
1199 runtime->hw.rate_min = runtime->hw.rate_max = 48000;
1200 } else if (chip->dxs_src && viadev->reg_offset < 0x40) {
1201 /* use full SRC capabilities of DXS */
1202 runtime->hw.rates = (SNDRV_PCM_RATE_CONTINUOUS |
1203 SNDRV_PCM_RATE_8000_48000);
1204 runtime->hw.rate_min = 8000;
1205 runtime->hw.rate_max = 48000;
1206 use_src = true;
1207 } else if (! ratep->rate) {
1208 int idx = viadev->direction ? AC97_RATES_ADC : AC97_RATES_FRONT_DAC;
1209 runtime->hw.rates = chip->ac97->rates[idx];
1210 snd_pcm_limit_hw_rates(runtime);
1211 } else {
1212 /* a fixed rate */
1213 runtime->hw.rates = SNDRV_PCM_RATE_KNOT;
1214 runtime->hw.rate_max = runtime->hw.rate_min = ratep->rate;
1215 }
1216 spin_unlock_irq(&ratep->lock);
1217
1218 /* we may remove following constaint when we modify table entries
1219 in interrupt */
1220 if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
1221 return err;
1222
1223 if (use_src) {
1224 err = snd_pcm_hw_rule_noresample(runtime, 48000);
1225 if (err < 0)
1226 return err;
1227 }
1228
1229 runtime->private_data = viadev;
1230 viadev->substream = substream;
1231
1232 return 0;
1233 }
1234
1235
1236 /*
1237 * open callback for playback on via686
1238 */
1239 static int snd_via686_playback_open(struct snd_pcm_substream *substream)
1240 {
1241 struct via82xx *chip = snd_pcm_substream_chip(substream);
1242 struct viadev *viadev = &chip->devs[chip->playback_devno + substream->number];
1243 int err;
1244
1245 if ((err = snd_via82xx_pcm_open(chip, viadev, substream)) < 0)
1246 return err;
1247 return 0;
1248 }
1249
1250 /*
1251 * open callback for playback on via823x DXS
1252 */
1253 static int snd_via8233_playback_open(struct snd_pcm_substream *substream)
1254 {
1255 struct via82xx *chip = snd_pcm_substream_chip(substream);
1256 struct viadev *viadev;
1257 unsigned int stream;
1258 int err;
1259
1260 viadev = &chip->devs[chip->playback_devno + substream->number];
1261 if ((err = snd_via82xx_pcm_open(chip, viadev, substream)) < 0)
1262 return err;
1263 stream = viadev->reg_offset / 0x10;
1264 if (chip->dxs_controls[stream]) {
1265 chip->playback_volume[stream][0] =
1266 VIA_DXS_MAX_VOLUME - (dxs_init_volume & 31);
1267 chip->playback_volume[stream][1] =
1268 VIA_DXS_MAX_VOLUME - (dxs_init_volume & 31);
1269 chip->dxs_controls[stream]->vd[0].access &=
1270 ~SNDRV_CTL_ELEM_ACCESS_INACTIVE;
1271 snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE |
1272 SNDRV_CTL_EVENT_MASK_INFO,
1273 &chip->dxs_controls[stream]->id);
1274 }
1275 return 0;
1276 }
1277
1278 /*
1279 * open callback for playback on via823x multi-channel
1280 */
1281 static int snd_via8233_multi_open(struct snd_pcm_substream *substream)
1282 {
1283 struct via82xx *chip = snd_pcm_substream_chip(substream);
1284 struct viadev *viadev = &chip->devs[chip->multi_devno];
1285 int err;
1286 /* channels constraint for VIA8233A
1287 * 3 and 5 channels are not supported
1288 */
1289 static unsigned int channels[] = {
1290 1, 2, 4, 6
1291 };
1292 static struct snd_pcm_hw_constraint_list hw_constraints_channels = {
1293 .count = ARRAY_SIZE(channels),
1294 .list = channels,
1295 .mask = 0,
1296 };
1297
1298 if ((err = snd_via82xx_pcm_open(chip, viadev, substream)) < 0)
1299 return err;
1300 substream->runtime->hw.channels_max = 6;
1301 if (chip->revision == VIA_REV_8233A)
1302 snd_pcm_hw_constraint_list(substream->runtime, 0,
1303 SNDRV_PCM_HW_PARAM_CHANNELS,
1304 &hw_constraints_channels);
1305 return 0;
1306 }
1307
1308 /*
1309 * open callback for capture on via686 and via823x
1310 */
1311 static int snd_via82xx_capture_open(struct snd_pcm_substream *substream)
1312 {
1313 struct via82xx *chip = snd_pcm_substream_chip(substream);
1314 struct viadev *viadev = &chip->devs[chip->capture_devno + substream->pcm->device];
1315
1316 return snd_via82xx_pcm_open(chip, viadev, substream);
1317 }
1318
1319 /*
1320 * close callback
1321 */
1322 static int snd_via82xx_pcm_close(struct snd_pcm_substream *substream)
1323 {
1324 struct via82xx *chip = snd_pcm_substream_chip(substream);
1325 struct viadev *viadev = substream->runtime->private_data;
1326 struct via_rate_lock *ratep;
1327
1328 /* release the rate lock */
1329 ratep = &chip->rates[viadev->direction];
1330 spin_lock_irq(&ratep->lock);
1331 ratep->used--;
1332 if (! ratep->used)
1333 ratep->rate = 0;
1334 spin_unlock_irq(&ratep->lock);
1335 if (! ratep->rate) {
1336 if (! viadev->direction) {
1337 snd_ac97_update_power(chip->ac97,
1338 AC97_PCM_FRONT_DAC_RATE, 0);
1339 snd_ac97_update_power(chip->ac97,
1340 AC97_PCM_SURR_DAC_RATE, 0);
1341 snd_ac97_update_power(chip->ac97,
1342 AC97_PCM_LFE_DAC_RATE, 0);
1343 } else
1344 snd_ac97_update_power(chip->ac97,
1345 AC97_PCM_LR_ADC_RATE, 0);
1346 }
1347 viadev->substream = NULL;
1348 return 0;
1349 }
1350
1351 static int snd_via8233_playback_close(struct snd_pcm_substream *substream)
1352 {
1353 struct via82xx *chip = snd_pcm_substream_chip(substream);
1354 struct viadev *viadev = substream->runtime->private_data;
1355 unsigned int stream;
1356
1357 stream = viadev->reg_offset / 0x10;
1358 if (chip->dxs_controls[stream]) {
1359 chip->dxs_controls[stream]->vd[0].access |=
1360 SNDRV_CTL_ELEM_ACCESS_INACTIVE;
1361 snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_INFO,
1362 &chip->dxs_controls[stream]->id);
1363 }
1364 return snd_via82xx_pcm_close(substream);
1365 }
1366
1367
1368 /* via686 playback callbacks */
1369 static struct snd_pcm_ops snd_via686_playback_ops = {
1370 .open = snd_via686_playback_open,
1371 .close = snd_via82xx_pcm_close,
1372 .ioctl = snd_pcm_lib_ioctl,
1373 .hw_params = snd_via82xx_hw_params,
1374 .hw_free = snd_via82xx_hw_free,
1375 .prepare = snd_via686_playback_prepare,
1376 .trigger = snd_via82xx_pcm_trigger,
1377 .pointer = snd_via686_pcm_pointer,
1378 .page = snd_pcm_sgbuf_ops_page,
1379 };
1380
1381 /* via686 capture callbacks */
1382 static struct snd_pcm_ops snd_via686_capture_ops = {
1383 .open = snd_via82xx_capture_open,
1384 .close = snd_via82xx_pcm_close,
1385 .ioctl = snd_pcm_lib_ioctl,
1386 .hw_params = snd_via82xx_hw_params,
1387 .hw_free = snd_via82xx_hw_free,
1388 .prepare = snd_via686_capture_prepare,
1389 .trigger = snd_via82xx_pcm_trigger,
1390 .pointer = snd_via686_pcm_pointer,
1391 .page = snd_pcm_sgbuf_ops_page,
1392 };
1393
1394 /* via823x DSX playback callbacks */
1395 static struct snd_pcm_ops snd_via8233_playback_ops = {
1396 .open = snd_via8233_playback_open,
1397 .close = snd_via8233_playback_close,
1398 .ioctl = snd_pcm_lib_ioctl,
1399 .hw_params = snd_via82xx_hw_params,
1400 .hw_free = snd_via82xx_hw_free,
1401 .prepare = snd_via8233_playback_prepare,
1402 .trigger = snd_via82xx_pcm_trigger,
1403 .pointer = snd_via8233_pcm_pointer,
1404 .page = snd_pcm_sgbuf_ops_page,
1405 };
1406
1407 /* via823x multi-channel playback callbacks */
1408 static struct snd_pcm_ops snd_via8233_multi_ops = {
1409 .open = snd_via8233_multi_open,
1410 .close = snd_via82xx_pcm_close,
1411 .ioctl = snd_pcm_lib_ioctl,
1412 .hw_params = snd_via82xx_hw_params,
1413 .hw_free = snd_via82xx_hw_free,
1414 .prepare = snd_via8233_multi_prepare,
1415 .trigger = snd_via82xx_pcm_trigger,
1416 .pointer = snd_via8233_pcm_pointer,
1417 .page = snd_pcm_sgbuf_ops_page,
1418 };
1419
1420 /* via823x capture callbacks */
1421 static struct snd_pcm_ops snd_via8233_capture_ops = {
1422 .open = snd_via82xx_capture_open,
1423 .close = snd_via82xx_pcm_close,
1424 .ioctl = snd_pcm_lib_ioctl,
1425 .hw_params = snd_via82xx_hw_params,
1426 .hw_free = snd_via82xx_hw_free,
1427 .prepare = snd_via8233_capture_prepare,
1428 .trigger = snd_via82xx_pcm_trigger,
1429 .pointer = snd_via8233_pcm_pointer,
1430 .page = snd_pcm_sgbuf_ops_page,
1431 };
1432
1433
1434 static void init_viadev(struct via82xx *chip, int idx, unsigned int reg_offset,
1435 int shadow_pos, int direction)
1436 {
1437 chip->devs[idx].reg_offset = reg_offset;
1438 chip->devs[idx].shadow_shift = shadow_pos * 4;
1439 chip->devs[idx].direction = direction;
1440 chip->devs[idx].port = chip->port + reg_offset;
1441 }
1442
1443 /*
1444 * create pcm instances for VIA8233, 8233C and 8235 (not 8233A)
1445 */
1446 static int snd_via8233_pcm_new(struct via82xx *chip)
1447 {
1448 struct snd_pcm *pcm;
1449 struct snd_pcm_chmap *chmap;
1450 int i, err;
1451
1452 chip->playback_devno = 0; /* x 4 */
1453 chip->multi_devno = 4; /* x 1 */
1454 chip->capture_devno = 5; /* x 2 */
1455 chip->num_devs = 7;
1456 chip->intr_mask = 0x33033333; /* FLAG|EOL for rec0-1, mc, sdx0-3 */
1457
1458 /* PCM #0: 4 DSX playbacks and 1 capture */
1459 err = snd_pcm_new(chip->card, chip->card->shortname, 0, 4, 1, &pcm);
1460 if (err < 0)
1461 return err;
1462 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_via8233_playback_ops);
1463 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_via8233_capture_ops);
1464 pcm->private_data = chip;
1465 strcpy(pcm->name, chip->card->shortname);
1466 chip->pcms[0] = pcm;
1467 /* set up playbacks */
1468 for (i = 0; i < 4; i++)
1469 init_viadev(chip, i, 0x10 * i, i, 0);
1470 /* capture */
1471 init_viadev(chip, chip->capture_devno, VIA_REG_CAPTURE_8233_STATUS, 6, 1);
1472
1473 snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
1474 snd_dma_pci_data(chip->pci),
1475 64*1024, VIA_MAX_BUFSIZE);
1476
1477 err = snd_pcm_add_chmap_ctls(pcm, SNDRV_PCM_STREAM_PLAYBACK,
1478 snd_pcm_std_chmaps, 2, 0,
1479 &chmap);
1480 if (err < 0)
1481 return err;
1482
1483 /* PCM #1: multi-channel playback and 2nd capture */
1484 err = snd_pcm_new(chip->card, chip->card->shortname, 1, 1, 1, &pcm);
1485 if (err < 0)
1486 return err;
1487 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_via8233_multi_ops);
1488 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_via8233_capture_ops);
1489 pcm->private_data = chip;
1490 strcpy(pcm->name, chip->card->shortname);
1491 chip->pcms[1] = pcm;
1492 /* set up playback */
1493 init_viadev(chip, chip->multi_devno, VIA_REG_MULTPLAY_STATUS, 4, 0);
1494 /* set up capture */
1495 init_viadev(chip, chip->capture_devno + 1, VIA_REG_CAPTURE_8233_STATUS + 0x10, 7, 1);
1496
1497 snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
1498 snd_dma_pci_data(chip->pci),
1499 64*1024, VIA_MAX_BUFSIZE);
1500
1501 err = snd_pcm_add_chmap_ctls(pcm, SNDRV_PCM_STREAM_PLAYBACK,
1502 snd_pcm_alt_chmaps, 6, 0,
1503 &chmap);
1504 if (err < 0)
1505 return err;
1506 chip->ac97->chmaps[SNDRV_PCM_STREAM_PLAYBACK] = chmap;
1507
1508 return 0;
1509 }
1510
1511 /*
1512 * create pcm instances for VIA8233A
1513 */
1514 static int snd_via8233a_pcm_new(struct via82xx *chip)
1515 {
1516 struct snd_pcm *pcm;
1517 struct snd_pcm_chmap *chmap;
1518 int err;
1519
1520 chip->multi_devno = 0;
1521 chip->playback_devno = 1;
1522 chip->capture_devno = 2;
1523 chip->num_devs = 3;
1524 chip->intr_mask = 0x03033000; /* FLAG|EOL for rec0, mc, sdx3 */
1525
1526 /* PCM #0: multi-channel playback and capture */
1527 err = snd_pcm_new(chip->card, chip->card->shortname, 0, 1, 1, &pcm);
1528 if (err < 0)
1529 return err;
1530 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_via8233_multi_ops);
1531 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_via8233_capture_ops);
1532 pcm->private_data = chip;
1533 strcpy(pcm->name, chip->card->shortname);
1534 chip->pcms[0] = pcm;
1535 /* set up playback */
1536 init_viadev(chip, chip->multi_devno, VIA_REG_MULTPLAY_STATUS, 4, 0);
1537 /* capture */
1538 init_viadev(chip, chip->capture_devno, VIA_REG_CAPTURE_8233_STATUS, 6, 1);
1539
1540 snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
1541 snd_dma_pci_data(chip->pci),
1542 64*1024, VIA_MAX_BUFSIZE);
1543
1544 err = snd_pcm_add_chmap_ctls(pcm, SNDRV_PCM_STREAM_PLAYBACK,
1545 snd_pcm_alt_chmaps, 6, 0,
1546 &chmap);
1547 if (err < 0)
1548 return err;
1549 chip->ac97->chmaps[SNDRV_PCM_STREAM_PLAYBACK] = chmap;
1550
1551 /* SPDIF supported? */
1552 if (! ac97_can_spdif(chip->ac97))
1553 return 0;
1554
1555 /* PCM #1: DXS3 playback (for spdif) */
1556 err = snd_pcm_new(chip->card, chip->card->shortname, 1, 1, 0, &pcm);
1557 if (err < 0)
1558 return err;
1559 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_via8233_playback_ops);
1560 pcm->private_data = chip;
1561 strcpy(pcm->name, chip->card->shortname);
1562 chip->pcms[1] = pcm;
1563 /* set up playback */
1564 init_viadev(chip, chip->playback_devno, 0x30, 3, 0);
1565
1566 snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
1567 snd_dma_pci_data(chip->pci),
1568 64*1024, VIA_MAX_BUFSIZE);
1569 return 0;
1570 }
1571
1572 /*
1573 * create a pcm instance for via686a/b
1574 */
1575 static int snd_via686_pcm_new(struct via82xx *chip)
1576 {
1577 struct snd_pcm *pcm;
1578 int err;
1579
1580 chip->playback_devno = 0;
1581 chip->capture_devno = 1;
1582 chip->num_devs = 2;
1583 chip->intr_mask = 0x77; /* FLAG | EOL for PB, CP, FM */
1584
1585 err = snd_pcm_new(chip->card, chip->card->shortname, 0, 1, 1, &pcm);
1586 if (err < 0)
1587 return err;
1588 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_via686_playback_ops);
1589 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_via686_capture_ops);
1590 pcm->private_data = chip;
1591 strcpy(pcm->name, chip->card->shortname);
1592 chip->pcms[0] = pcm;
1593 init_viadev(chip, 0, VIA_REG_PLAYBACK_STATUS, 0, 0);
1594 init_viadev(chip, 1, VIA_REG_CAPTURE_STATUS, 0, 1);
1595
1596 snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
1597 snd_dma_pci_data(chip->pci),
1598 64*1024, VIA_MAX_BUFSIZE);
1599 return 0;
1600 }
1601
1602
1603 /*
1604 * Mixer part
1605 */
1606
1607 static int snd_via8233_capture_source_info(struct snd_kcontrol *kcontrol,
1608 struct snd_ctl_elem_info *uinfo)
1609 {
1610 /* formerly they were "Line" and "Mic", but it looks like that they
1611 * have nothing to do with the actual physical connections...
1612 */
1613 static const char * const texts[2] = {
1614 "Input1", "Input2"
1615 };
1616 return snd_ctl_enum_info(uinfo, 1, 2, texts);
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 dev_warn(chip->card->dev, "cannot reserve joystick port %#x\n",
1944 JOYSTICK_ADDR);
1945 return -EBUSY;
1946 }
1947
1948 chip->gameport = gp = gameport_allocate_port();
1949 if (!gp) {
1950 dev_err(chip->card->dev,
1951 "cannot allocate memory for gameport\n");
1952 release_and_free_resource(r);
1953 return -ENOMEM;
1954 }
1955
1956 gameport_set_name(gp, "VIA686 Gameport");
1957 gameport_set_phys(gp, "pci%s/gameport0", pci_name(chip->pci));
1958 gameport_set_dev_parent(gp, &chip->pci->dev);
1959 gp->io = JOYSTICK_ADDR;
1960 gameport_set_port_data(gp, r);
1961
1962 /* Enable legacy joystick port */
1963 *legacy |= VIA_FUNC_ENABLE_GAME;
1964 pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE, *legacy);
1965
1966 gameport_register_port(chip->gameport);
1967
1968 return 0;
1969 }
1970
1971 static void snd_via686_free_gameport(struct via82xx *chip)
1972 {
1973 if (chip->gameport) {
1974 struct resource *r = gameport_get_port_data(chip->gameport);
1975
1976 gameport_unregister_port(chip->gameport);
1977 chip->gameport = NULL;
1978 release_and_free_resource(r);
1979 }
1980 }
1981 #else
1982 static inline int snd_via686_create_gameport(struct via82xx *chip, unsigned char *legacy)
1983 {
1984 return -ENOSYS;
1985 }
1986 static inline void snd_via686_free_gameport(struct via82xx *chip) { }
1987 #endif
1988
1989
1990 /*
1991 *
1992 */
1993
1994 static int snd_via8233_init_misc(struct via82xx *chip)
1995 {
1996 int i, err, caps;
1997 unsigned char val;
1998
1999 caps = chip->chip_type == TYPE_VIA8233A ? 1 : 2;
2000 for (i = 0; i < caps; i++) {
2001 snd_via8233_capture_source.index = i;
2002 err = snd_ctl_add(chip->card, snd_ctl_new1(&snd_via8233_capture_source, chip));
2003 if (err < 0)
2004 return err;
2005 }
2006 if (ac97_can_spdif(chip->ac97)) {
2007 err = snd_ctl_add(chip->card, snd_ctl_new1(&snd_via8233_dxs3_spdif_control, chip));
2008 if (err < 0)
2009 return err;
2010 }
2011 if (chip->chip_type != TYPE_VIA8233A) {
2012 /* when no h/w PCM volume control is found, use DXS volume control
2013 * as the PCM vol control
2014 */
2015 struct snd_ctl_elem_id sid;
2016 memset(&sid, 0, sizeof(sid));
2017 strcpy(sid.name, "PCM Playback Volume");
2018 sid.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
2019 if (! snd_ctl_find_id(chip->card, &sid)) {
2020 dev_info(chip->card->dev,
2021 "Using DXS as PCM Playback\n");
2022 err = snd_ctl_add(chip->card, snd_ctl_new1(&snd_via8233_pcmdxs_volume_control, chip));
2023 if (err < 0)
2024 return err;
2025 }
2026 else /* Using DXS when PCM emulation is enabled is really weird */
2027 {
2028 for (i = 0; i < 4; ++i) {
2029 struct snd_kcontrol *kctl;
2030
2031 kctl = snd_ctl_new1(
2032 &snd_via8233_dxs_volume_control, chip);
2033 if (!kctl)
2034 return -ENOMEM;
2035 kctl->id.subdevice = i;
2036 err = snd_ctl_add(chip->card, kctl);
2037 if (err < 0)
2038 return err;
2039 chip->dxs_controls[i] = kctl;
2040 }
2041 }
2042 }
2043 /* select spdif data slot 10/11 */
2044 pci_read_config_byte(chip->pci, VIA8233_SPDIF_CTRL, &val);
2045 val = (val & ~VIA8233_SPDIF_SLOT_MASK) | VIA8233_SPDIF_SLOT_1011;
2046 val &= ~VIA8233_SPDIF_DX3; /* SPDIF off as default */
2047 pci_write_config_byte(chip->pci, VIA8233_SPDIF_CTRL, val);
2048
2049 return 0;
2050 }
2051
2052 static int snd_via686_init_misc(struct via82xx *chip)
2053 {
2054 unsigned char legacy, legacy_cfg;
2055 int rev_h = 0;
2056
2057 legacy = chip->old_legacy;
2058 legacy_cfg = chip->old_legacy_cfg;
2059 legacy |= VIA_FUNC_MIDI_IRQMASK; /* FIXME: correct? (disable MIDI) */
2060 legacy &= ~VIA_FUNC_ENABLE_GAME; /* disable joystick */
2061 if (chip->revision >= VIA_REV_686_H) {
2062 rev_h = 1;
2063 if (mpu_port >= 0x200) { /* force MIDI */
2064 mpu_port &= 0xfffc;
2065 pci_write_config_dword(chip->pci, 0x18, mpu_port | 0x01);
2066 #ifdef CONFIG_PM_SLEEP
2067 chip->mpu_port_saved = mpu_port;
2068 #endif
2069 } else {
2070 mpu_port = pci_resource_start(chip->pci, 2);
2071 }
2072 } else {
2073 switch (mpu_port) { /* force MIDI */
2074 case 0x300:
2075 case 0x310:
2076 case 0x320:
2077 case 0x330:
2078 legacy_cfg &= ~(3 << 2);
2079 legacy_cfg |= (mpu_port & 0x0030) >> 2;
2080 break;
2081 default: /* no, use BIOS settings */
2082 if (legacy & VIA_FUNC_ENABLE_MIDI)
2083 mpu_port = 0x300 + ((legacy_cfg & 0x000c) << 2);
2084 break;
2085 }
2086 }
2087 if (mpu_port >= 0x200 &&
2088 (chip->mpu_res = request_region(mpu_port, 2, "VIA82xx MPU401"))
2089 != NULL) {
2090 if (rev_h)
2091 legacy |= VIA_FUNC_MIDI_PNP; /* enable PCI I/O 2 */
2092 legacy |= VIA_FUNC_ENABLE_MIDI;
2093 } else {
2094 if (rev_h)
2095 legacy &= ~VIA_FUNC_MIDI_PNP; /* disable PCI I/O 2 */
2096 legacy &= ~VIA_FUNC_ENABLE_MIDI;
2097 mpu_port = 0;
2098 }
2099
2100 pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE, legacy);
2101 pci_write_config_byte(chip->pci, VIA_PNP_CONTROL, legacy_cfg);
2102 if (chip->mpu_res) {
2103 if (snd_mpu401_uart_new(chip->card, 0, MPU401_HW_VIA686A,
2104 mpu_port, MPU401_INFO_INTEGRATED |
2105 MPU401_INFO_IRQ_HOOK, -1,
2106 &chip->rmidi) < 0) {
2107 dev_warn(chip->card->dev,
2108 "unable to initialize MPU-401 at 0x%lx, skipping\n",
2109 mpu_port);
2110 legacy &= ~VIA_FUNC_ENABLE_MIDI;
2111 } else {
2112 legacy &= ~VIA_FUNC_MIDI_IRQMASK; /* enable MIDI interrupt */
2113 }
2114 pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE, legacy);
2115 }
2116
2117 snd_via686_create_gameport(chip, &legacy);
2118
2119 #ifdef CONFIG_PM_SLEEP
2120 chip->legacy_saved = legacy;
2121 chip->legacy_cfg_saved = legacy_cfg;
2122 #endif
2123
2124 return 0;
2125 }
2126
2127
2128 /*
2129 * proc interface
2130 */
2131 static void snd_via82xx_proc_read(struct snd_info_entry *entry,
2132 struct snd_info_buffer *buffer)
2133 {
2134 struct via82xx *chip = entry->private_data;
2135 int i;
2136
2137 snd_iprintf(buffer, "%s\n\n", chip->card->longname);
2138 for (i = 0; i < 0xa0; i += 4) {
2139 snd_iprintf(buffer, "%02x: %08x\n", i, inl(chip->port + i));
2140 }
2141 }
2142
2143 static void snd_via82xx_proc_init(struct via82xx *chip)
2144 {
2145 struct snd_info_entry *entry;
2146
2147 if (! snd_card_proc_new(chip->card, "via82xx", &entry))
2148 snd_info_set_text_ops(entry, chip, snd_via82xx_proc_read);
2149 }
2150
2151 /*
2152 *
2153 */
2154
2155 static int snd_via82xx_chip_init(struct via82xx *chip)
2156 {
2157 unsigned int val;
2158 unsigned long end_time;
2159 unsigned char pval;
2160
2161 #if 0 /* broken on K7M? */
2162 if (chip->chip_type == TYPE_VIA686)
2163 /* disable all legacy ports */
2164 pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE, 0);
2165 #endif
2166 pci_read_config_byte(chip->pci, VIA_ACLINK_STAT, &pval);
2167 if (! (pval & VIA_ACLINK_C00_READY)) { /* codec not ready? */
2168 /* deassert ACLink reset, force SYNC */
2169 pci_write_config_byte(chip->pci, VIA_ACLINK_CTRL,
2170 VIA_ACLINK_CTRL_ENABLE |
2171 VIA_ACLINK_CTRL_RESET |
2172 VIA_ACLINK_CTRL_SYNC);
2173 udelay(100);
2174 #if 1 /* FIXME: should we do full reset here for all chip models? */
2175 pci_write_config_byte(chip->pci, VIA_ACLINK_CTRL, 0x00);
2176 udelay(100);
2177 #else
2178 /* deassert ACLink reset, force SYNC (warm AC'97 reset) */
2179 pci_write_config_byte(chip->pci, VIA_ACLINK_CTRL,
2180 VIA_ACLINK_CTRL_RESET|VIA_ACLINK_CTRL_SYNC);
2181 udelay(2);
2182 #endif
2183 /* ACLink on, deassert ACLink reset, VSR, SGD data out */
2184 /* note - FM data out has trouble with non VRA codecs !! */
2185 pci_write_config_byte(chip->pci, VIA_ACLINK_CTRL, VIA_ACLINK_CTRL_INIT);
2186 udelay(100);
2187 }
2188
2189 /* Make sure VRA is enabled, in case we didn't do a
2190 * complete codec reset, above */
2191 pci_read_config_byte(chip->pci, VIA_ACLINK_CTRL, &pval);
2192 if ((pval & VIA_ACLINK_CTRL_INIT) != VIA_ACLINK_CTRL_INIT) {
2193 /* ACLink on, deassert ACLink reset, VSR, SGD data out */
2194 /* note - FM data out has trouble with non VRA codecs !! */
2195 pci_write_config_byte(chip->pci, VIA_ACLINK_CTRL, VIA_ACLINK_CTRL_INIT);
2196 udelay(100);
2197 }
2198
2199 /* wait until codec ready */
2200 end_time = jiffies + msecs_to_jiffies(750);
2201 do {
2202 pci_read_config_byte(chip->pci, VIA_ACLINK_STAT, &pval);
2203 if (pval & VIA_ACLINK_C00_READY) /* primary codec ready */
2204 break;
2205 schedule_timeout_uninterruptible(1);
2206 } while (time_before(jiffies, end_time));
2207
2208 if ((val = snd_via82xx_codec_xread(chip)) & VIA_REG_AC97_BUSY)
2209 dev_err(chip->card->dev,
2210 "AC'97 codec is not ready [0x%x]\n", val);
2211
2212 #if 0 /* FIXME: we don't support the second codec yet so skip the detection now.. */
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 end_time = jiffies + msecs_to_jiffies(750);
2217 snd_via82xx_codec_xwrite(chip, VIA_REG_AC97_READ |
2218 VIA_REG_AC97_SECONDARY_VALID |
2219 (VIA_REG_AC97_CODEC_ID_SECONDARY << VIA_REG_AC97_CODEC_ID_SHIFT));
2220 do {
2221 if ((val = snd_via82xx_codec_xread(chip)) & VIA_REG_AC97_SECONDARY_VALID) {
2222 chip->ac97_secondary = 1;
2223 goto __ac97_ok2;
2224 }
2225 schedule_timeout_uninterruptible(1);
2226 } while (time_before(jiffies, end_time));
2227 /* This is ok, the most of motherboards have only one codec */
2228
2229 __ac97_ok2:
2230 #endif
2231
2232 if (chip->chip_type == TYPE_VIA686) {
2233 /* route FM trap to IRQ, disable FM trap */
2234 pci_write_config_byte(chip->pci, VIA_FM_NMI_CTRL, 0);
2235 /* disable all GPI interrupts */
2236 outl(0, VIAREG(chip, GPI_INTR));
2237 }
2238
2239 if (chip->chip_type != TYPE_VIA686) {
2240 /* Workaround for Award BIOS bug:
2241 * DXS channels don't work properly with VRA if MC97 is disabled.
2242 */
2243 struct pci_dev *pci;
2244 pci = pci_get_device(0x1106, 0x3068, NULL); /* MC97 */
2245 if (pci) {
2246 unsigned char data;
2247 pci_read_config_byte(pci, 0x44, &data);
2248 pci_write_config_byte(pci, 0x44, data | 0x40);
2249 pci_dev_put(pci);
2250 }
2251 }
2252
2253 if (chip->chip_type != TYPE_VIA8233A) {
2254 int i, idx;
2255 for (idx = 0; idx < 4; idx++) {
2256 unsigned long port = chip->port + 0x10 * idx;
2257 for (i = 0; i < 2; i++) {
2258 chip->playback_volume[idx][i]=chip->playback_volume_c[i];
2259 outb(chip->playback_volume_c[i],
2260 port + VIA_REG_OFS_PLAYBACK_VOLUME_L + i);
2261 }
2262 }
2263 }
2264
2265 return 0;
2266 }
2267
2268 #ifdef CONFIG_PM_SLEEP
2269 /*
2270 * power management
2271 */
2272 static int snd_via82xx_suspend(struct device *dev)
2273 {
2274 struct pci_dev *pci = to_pci_dev(dev);
2275 struct snd_card *card = dev_get_drvdata(dev);
2276 struct via82xx *chip = card->private_data;
2277 int i;
2278
2279 snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
2280 for (i = 0; i < 2; i++)
2281 snd_pcm_suspend_all(chip->pcms[i]);
2282 for (i = 0; i < chip->num_devs; i++)
2283 snd_via82xx_channel_reset(chip, &chip->devs[i]);
2284 synchronize_irq(chip->irq);
2285 snd_ac97_suspend(chip->ac97);
2286
2287 /* save misc values */
2288 if (chip->chip_type != TYPE_VIA686) {
2289 pci_read_config_byte(chip->pci, VIA8233_SPDIF_CTRL, &chip->spdif_ctrl_saved);
2290 chip->capture_src_saved[0] = inb(chip->port + VIA_REG_CAPTURE_CHANNEL);
2291 chip->capture_src_saved[1] = inb(chip->port + VIA_REG_CAPTURE_CHANNEL + 0x10);
2292 }
2293
2294 pci_disable_device(pci);
2295 pci_save_state(pci);
2296 pci_set_power_state(pci, PCI_D3hot);
2297 return 0;
2298 }
2299
2300 static int snd_via82xx_resume(struct device *dev)
2301 {
2302 struct pci_dev *pci = to_pci_dev(dev);
2303 struct snd_card *card = dev_get_drvdata(dev);
2304 struct via82xx *chip = card->private_data;
2305 int i;
2306
2307 pci_set_power_state(pci, PCI_D0);
2308 pci_restore_state(pci);
2309 if (pci_enable_device(pci) < 0) {
2310 dev_err(dev, "pci_enable_device failed, disabling device\n");
2311 snd_card_disconnect(card);
2312 return -EIO;
2313 }
2314 pci_set_master(pci);
2315
2316 snd_via82xx_chip_init(chip);
2317
2318 if (chip->chip_type == TYPE_VIA686) {
2319 if (chip->mpu_port_saved)
2320 pci_write_config_dword(chip->pci, 0x18, chip->mpu_port_saved | 0x01);
2321 pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE, chip->legacy_saved);
2322 pci_write_config_byte(chip->pci, VIA_PNP_CONTROL, chip->legacy_cfg_saved);
2323 } else {
2324 pci_write_config_byte(chip->pci, VIA8233_SPDIF_CTRL, chip->spdif_ctrl_saved);
2325 outb(chip->capture_src_saved[0], chip->port + VIA_REG_CAPTURE_CHANNEL);
2326 outb(chip->capture_src_saved[1], chip->port + VIA_REG_CAPTURE_CHANNEL + 0x10);
2327 }
2328
2329 snd_ac97_resume(chip->ac97);
2330
2331 for (i = 0; i < chip->num_devs; i++)
2332 snd_via82xx_channel_reset(chip, &chip->devs[i]);
2333
2334 snd_power_change_state(card, SNDRV_CTL_POWER_D0);
2335 return 0;
2336 }
2337
2338 static SIMPLE_DEV_PM_OPS(snd_via82xx_pm, snd_via82xx_suspend, snd_via82xx_resume);
2339 #define SND_VIA82XX_PM_OPS &snd_via82xx_pm
2340 #else
2341 #define SND_VIA82XX_PM_OPS NULL
2342 #endif /* CONFIG_PM_SLEEP */
2343
2344 static int snd_via82xx_free(struct via82xx *chip)
2345 {
2346 unsigned int i;
2347
2348 if (chip->irq < 0)
2349 goto __end_hw;
2350 /* disable interrupts */
2351 for (i = 0; i < chip->num_devs; i++)
2352 snd_via82xx_channel_reset(chip, &chip->devs[i]);
2353
2354 if (chip->irq >= 0)
2355 free_irq(chip->irq, chip);
2356 __end_hw:
2357 release_and_free_resource(chip->mpu_res);
2358 pci_release_regions(chip->pci);
2359
2360 if (chip->chip_type == TYPE_VIA686) {
2361 snd_via686_free_gameport(chip);
2362 pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE, chip->old_legacy);
2363 pci_write_config_byte(chip->pci, VIA_PNP_CONTROL, chip->old_legacy_cfg);
2364 }
2365 pci_disable_device(chip->pci);
2366 kfree(chip);
2367 return 0;
2368 }
2369
2370 static int snd_via82xx_dev_free(struct snd_device *device)
2371 {
2372 struct via82xx *chip = device->device_data;
2373 return snd_via82xx_free(chip);
2374 }
2375
2376 static int snd_via82xx_create(struct snd_card *card,
2377 struct pci_dev *pci,
2378 int chip_type,
2379 int revision,
2380 unsigned int ac97_clock,
2381 struct via82xx **r_via)
2382 {
2383 struct via82xx *chip;
2384 int err;
2385 static struct snd_device_ops ops = {
2386 .dev_free = snd_via82xx_dev_free,
2387 };
2388
2389 if ((err = pci_enable_device(pci)) < 0)
2390 return err;
2391
2392 if ((chip = kzalloc(sizeof(*chip), GFP_KERNEL)) == NULL) {
2393 pci_disable_device(pci);
2394 return -ENOMEM;
2395 }
2396
2397 chip->chip_type = chip_type;
2398 chip->revision = revision;
2399
2400 spin_lock_init(&chip->reg_lock);
2401 spin_lock_init(&chip->rates[0].lock);
2402 spin_lock_init(&chip->rates[1].lock);
2403 chip->card = card;
2404 chip->pci = pci;
2405 chip->irq = -1;
2406
2407 pci_read_config_byte(pci, VIA_FUNC_ENABLE, &chip->old_legacy);
2408 pci_read_config_byte(pci, VIA_PNP_CONTROL, &chip->old_legacy_cfg);
2409 pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE,
2410 chip->old_legacy & ~(VIA_FUNC_ENABLE_SB|VIA_FUNC_ENABLE_FM));
2411
2412 if ((err = pci_request_regions(pci, card->driver)) < 0) {
2413 kfree(chip);
2414 pci_disable_device(pci);
2415 return err;
2416 }
2417 chip->port = pci_resource_start(pci, 0);
2418 if (request_irq(pci->irq,
2419 chip_type == TYPE_VIA8233 ?
2420 snd_via8233_interrupt : snd_via686_interrupt,
2421 IRQF_SHARED,
2422 KBUILD_MODNAME, chip)) {
2423 dev_err(card->dev, "unable to grab IRQ %d\n", pci->irq);
2424 snd_via82xx_free(chip);
2425 return -EBUSY;
2426 }
2427 chip->irq = pci->irq;
2428 if (ac97_clock >= 8000 && ac97_clock <= 48000)
2429 chip->ac97_clock = ac97_clock;
2430 synchronize_irq(chip->irq);
2431
2432 if ((err = snd_via82xx_chip_init(chip)) < 0) {
2433 snd_via82xx_free(chip);
2434 return err;
2435 }
2436
2437 if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
2438 snd_via82xx_free(chip);
2439 return err;
2440 }
2441
2442 /* The 8233 ac97 controller does not implement the master bit
2443 * in the pci command register. IMHO this is a violation of the PCI spec.
2444 * We call pci_set_master here because it does not hurt. */
2445 pci_set_master(pci);
2446
2447 *r_via = chip;
2448 return 0;
2449 }
2450
2451 struct via823x_info {
2452 int revision;
2453 char *name;
2454 int type;
2455 };
2456 static struct via823x_info via823x_cards[] = {
2457 { VIA_REV_PRE_8233, "VIA 8233-Pre", TYPE_VIA8233 },
2458 { VIA_REV_8233C, "VIA 8233C", TYPE_VIA8233 },
2459 { VIA_REV_8233, "VIA 8233", TYPE_VIA8233 },
2460 { VIA_REV_8233A, "VIA 8233A", TYPE_VIA8233A },
2461 { VIA_REV_8235, "VIA 8235", TYPE_VIA8233 },
2462 { VIA_REV_8237, "VIA 8237", TYPE_VIA8233 },
2463 { VIA_REV_8251, "VIA 8251", TYPE_VIA8233 },
2464 };
2465
2466 /*
2467 * auto detection of DXS channel supports.
2468 */
2469
2470 static struct snd_pci_quirk dxs_whitelist[] = {
2471 SND_PCI_QUIRK(0x1005, 0x4710, "Avance Logic Mobo", VIA_DXS_ENABLE),
2472 SND_PCI_QUIRK(0x1019, 0x0996, "ESC Mobo", VIA_DXS_48K),
2473 SND_PCI_QUIRK(0x1019, 0x0a81, "ECS K7VTA3 v8.0", VIA_DXS_NO_VRA),
2474 SND_PCI_QUIRK(0x1019, 0x0a85, "ECS L7VMM2", VIA_DXS_NO_VRA),
2475 SND_PCI_QUIRK_VENDOR(0x1019, "ESC K8", VIA_DXS_SRC),
2476 SND_PCI_QUIRK(0x1019, 0xaa01, "ESC K8T890-A", VIA_DXS_SRC),
2477 SND_PCI_QUIRK(0x1025, 0x0033, "Acer Inspire 1353LM", VIA_DXS_NO_VRA),
2478 SND_PCI_QUIRK(0x1025, 0x0046, "Acer Aspire 1524 WLMi", VIA_DXS_SRC),
2479 SND_PCI_QUIRK_VENDOR(0x1043, "ASUS A7/A8", VIA_DXS_NO_VRA),
2480 SND_PCI_QUIRK_VENDOR(0x1071, "Diverse Notebook", VIA_DXS_NO_VRA),
2481 SND_PCI_QUIRK(0x10cf, 0x118e, "FSC Laptop", VIA_DXS_ENABLE),
2482 SND_PCI_QUIRK_VENDOR(0x1106, "ASRock", VIA_DXS_SRC),
2483 SND_PCI_QUIRK(0x1297, 0xa231, "Shuttle AK31v2", VIA_DXS_SRC),
2484 SND_PCI_QUIRK(0x1297, 0xa232, "Shuttle", VIA_DXS_SRC),
2485 SND_PCI_QUIRK(0x1297, 0xc160, "Shuttle Sk41G", VIA_DXS_SRC),
2486 SND_PCI_QUIRK(0x1458, 0xa002, "Gigabyte GA-7VAXP", VIA_DXS_ENABLE),
2487 SND_PCI_QUIRK(0x1462, 0x3800, "MSI KT266", VIA_DXS_ENABLE),
2488 SND_PCI_QUIRK(0x1462, 0x7120, "MSI KT4V", VIA_DXS_ENABLE),
2489 SND_PCI_QUIRK(0x1462, 0x7142, "MSI K8MM-V", VIA_DXS_ENABLE),
2490 SND_PCI_QUIRK_VENDOR(0x1462, "MSI Mobo", VIA_DXS_SRC),
2491 SND_PCI_QUIRK(0x147b, 0x1401, "ABIT KD7(-RAID)", VIA_DXS_ENABLE),
2492 SND_PCI_QUIRK(0x147b, 0x1411, "ABIT VA-20", VIA_DXS_ENABLE),
2493 SND_PCI_QUIRK(0x147b, 0x1413, "ABIT KV8 Pro", VIA_DXS_ENABLE),
2494 SND_PCI_QUIRK(0x147b, 0x1415, "ABIT AV8", VIA_DXS_NO_VRA),
2495 SND_PCI_QUIRK(0x14ff, 0x0403, "Twinhead mobo", VIA_DXS_ENABLE),
2496 SND_PCI_QUIRK(0x14ff, 0x0408, "Twinhead laptop", VIA_DXS_SRC),
2497 SND_PCI_QUIRK(0x1558, 0x4701, "Clevo D470", VIA_DXS_SRC),
2498 SND_PCI_QUIRK(0x1584, 0x8120, "Diverse Laptop", VIA_DXS_ENABLE),
2499 SND_PCI_QUIRK(0x1584, 0x8123, "Targa/Uniwill", VIA_DXS_NO_VRA),
2500 SND_PCI_QUIRK(0x161f, 0x202b, "Amira Notebook", VIA_DXS_NO_VRA),
2501 SND_PCI_QUIRK(0x161f, 0x2032, "m680x machines", VIA_DXS_48K),
2502 SND_PCI_QUIRK(0x1631, 0xe004, "PB EasyNote 3174", VIA_DXS_ENABLE),
2503 SND_PCI_QUIRK(0x1695, 0x3005, "EPoX EP-8K9A", VIA_DXS_ENABLE),
2504 SND_PCI_QUIRK_VENDOR(0x1695, "EPoX mobo", VIA_DXS_SRC),
2505 SND_PCI_QUIRK_VENDOR(0x16f3, "Jetway K8", VIA_DXS_SRC),
2506 SND_PCI_QUIRK_VENDOR(0x1734, "FSC Laptop", VIA_DXS_SRC),
2507 SND_PCI_QUIRK(0x1849, 0x3059, "ASRock K7VM2", VIA_DXS_NO_VRA),
2508 SND_PCI_QUIRK_VENDOR(0x1849, "ASRock mobo", VIA_DXS_SRC),
2509 SND_PCI_QUIRK(0x1919, 0x200a, "Soltek SL-K8", VIA_DXS_NO_VRA),
2510 SND_PCI_QUIRK(0x4005, 0x4710, "MSI K7T266", VIA_DXS_SRC),
2511 { } /* terminator */
2512 };
2513
2514 static int check_dxs_list(struct pci_dev *pci, int revision)
2515 {
2516 const struct snd_pci_quirk *w;
2517
2518 w = snd_pci_quirk_lookup(pci, dxs_whitelist);
2519 if (w) {
2520 dev_dbg(&pci->dev, "DXS white list for %s found\n",
2521 snd_pci_quirk_name(w));
2522 return w->value;
2523 }
2524
2525 /* for newer revision, default to DXS_SRC */
2526 if (revision >= VIA_REV_8235)
2527 return VIA_DXS_SRC;
2528
2529 /*
2530 * not detected, try 48k rate only to be sure.
2531 */
2532 dev_info(&pci->dev, "Assuming DXS channels with 48k fixed sample rate.\n");
2533 dev_info(&pci->dev, " Please try dxs_support=5 option\n");
2534 dev_info(&pci->dev, " and report if it works on your machine.\n");
2535 dev_info(&pci->dev, " For more details, read ALSA-Configuration.txt.\n");
2536 return VIA_DXS_48K;
2537 };
2538
2539 static int snd_via82xx_probe(struct pci_dev *pci,
2540 const struct pci_device_id *pci_id)
2541 {
2542 struct snd_card *card;
2543 struct via82xx *chip;
2544 int chip_type = 0, card_type;
2545 unsigned int i;
2546 int err;
2547
2548 err = snd_card_new(&pci->dev, index, id, THIS_MODULE, 0, &card);
2549 if (err < 0)
2550 return err;
2551
2552 card_type = pci_id->driver_data;
2553 switch (card_type) {
2554 case TYPE_CARD_VIA686:
2555 strcpy(card->driver, "VIA686A");
2556 sprintf(card->shortname, "VIA 82C686A/B rev%x", pci->revision);
2557 chip_type = TYPE_VIA686;
2558 break;
2559 case TYPE_CARD_VIA8233:
2560 chip_type = TYPE_VIA8233;
2561 sprintf(card->shortname, "VIA 823x rev%x", pci->revision);
2562 for (i = 0; i < ARRAY_SIZE(via823x_cards); i++) {
2563 if (pci->revision == via823x_cards[i].revision) {
2564 chip_type = via823x_cards[i].type;
2565 strcpy(card->shortname, via823x_cards[i].name);
2566 break;
2567 }
2568 }
2569 if (chip_type != TYPE_VIA8233A) {
2570 if (dxs_support == VIA_DXS_AUTO)
2571 dxs_support = check_dxs_list(pci, pci->revision);
2572 /* force to use VIA8233 or 8233A model according to
2573 * dxs_support module option
2574 */
2575 if (dxs_support == VIA_DXS_DISABLE)
2576 chip_type = TYPE_VIA8233A;
2577 else
2578 chip_type = TYPE_VIA8233;
2579 }
2580 if (chip_type == TYPE_VIA8233A)
2581 strcpy(card->driver, "VIA8233A");
2582 else if (pci->revision >= VIA_REV_8237)
2583 strcpy(card->driver, "VIA8237"); /* no slog assignment */
2584 else
2585 strcpy(card->driver, "VIA8233");
2586 break;
2587 default:
2588 dev_err(card->dev, "invalid card type %d\n", card_type);
2589 err = -EINVAL;
2590 goto __error;
2591 }
2592
2593 if ((err = snd_via82xx_create(card, pci, chip_type, pci->revision,
2594 ac97_clock, &chip)) < 0)
2595 goto __error;
2596 card->private_data = chip;
2597 if ((err = snd_via82xx_mixer_new(chip, ac97_quirk)) < 0)
2598 goto __error;
2599
2600 if (chip_type == TYPE_VIA686) {
2601 if ((err = snd_via686_pcm_new(chip)) < 0 ||
2602 (err = snd_via686_init_misc(chip)) < 0)
2603 goto __error;
2604 } else {
2605 if (chip_type == TYPE_VIA8233A) {
2606 if ((err = snd_via8233a_pcm_new(chip)) < 0)
2607 goto __error;
2608 // chip->dxs_fixed = 1; /* FIXME: use 48k for DXS #3? */
2609 } else {
2610 if ((err = snd_via8233_pcm_new(chip)) < 0)
2611 goto __error;
2612 if (dxs_support == VIA_DXS_48K)
2613 chip->dxs_fixed = 1;
2614 else if (dxs_support == VIA_DXS_NO_VRA)
2615 chip->no_vra = 1;
2616 else if (dxs_support == VIA_DXS_SRC) {
2617 chip->no_vra = 1;
2618 chip->dxs_src = 1;
2619 }
2620 }
2621 if ((err = snd_via8233_init_misc(chip)) < 0)
2622 goto __error;
2623 }
2624
2625 /* disable interrupts */
2626 for (i = 0; i < chip->num_devs; i++)
2627 snd_via82xx_channel_reset(chip, &chip->devs[i]);
2628
2629 snprintf(card->longname, sizeof(card->longname),
2630 "%s with %s at %#lx, irq %d", card->shortname,
2631 snd_ac97_get_short_name(chip->ac97), chip->port, chip->irq);
2632
2633 snd_via82xx_proc_init(chip);
2634
2635 if ((err = snd_card_register(card)) < 0) {
2636 snd_card_free(card);
2637 return err;
2638 }
2639 pci_set_drvdata(pci, card);
2640 return 0;
2641
2642 __error:
2643 snd_card_free(card);
2644 return err;
2645 }
2646
2647 static void snd_via82xx_remove(struct pci_dev *pci)
2648 {
2649 snd_card_free(pci_get_drvdata(pci));
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);
Linux with added FPC-III support