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DECnet: don't leak uninitialized stack byte
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / sound / pci / via82xx.c
blob8c5f8b5a59f0d82aa0a734eb6e37bf800cc6ef06
1 /*
2 * ALSA driver for VIA VT82xx (South Bridge)
3 *
4 * VT82C686A/B/C, VT8233A/C, VT8235
5 *
6 * Copyright (c) 2000 Jaroslav Kysela <perex@perex.cz>
7 * Tjeerd.Mulder <Tjeerd.Mulder@fujitsu-siemens.com>
8 * 2002 Takashi Iwai <tiwai@suse.de>
9 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
14 *
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
19 *
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23 *
24 */
25
26 /*
27 * Changes:
28 *
29 * Dec. 19, 2002 Takashi Iwai <tiwai@suse.de>
30 * - use the DSX channels for the first pcm playback.
31 * (on VIA8233, 8233C and 8235 only)
32 * this will allow you play simultaneously up to 4 streams.
33 * multi-channel playback is assigned to the second device
34 * on these chips.
35 * - support the secondary capture (on VIA8233/C,8235)
36 * - SPDIF support
37 * the DSX3 channel can be used for SPDIF output.
38 * on VIA8233A, this channel is assigned to the second pcm
39 * playback.
40 * the card config of alsa-lib will assign the correct
41 * device for applications.
42 * - clean up the code, separate low-level initialization
43 * routines for each chipset.
44 *
45 * Sep. 26, 2005 Karsten Wiese <annabellesgarden@yahoo.de>
46 * - Optimize position calculation for the 823x chips.
47 */
48
49 #include <asm/io.h>
50 #include <linux/delay.h>
51 #include <linux/interrupt.h>
52 #include <linux/init.h>
53 #include <linux/pci.h>
54 #include <linux/slab.h>
55 #include <linux/gameport.h>
56 #include <linux/moduleparam.h>
57 #include <sound/core.h>
58 #include <sound/pcm.h>
59 #include <sound/pcm_params.h>
60 #include <sound/info.h>
61 #include <sound/tlv.h>
62 #include <sound/ac97_codec.h>
63 #include <sound/mpu401.h>
64 #include <sound/initval.h>
65
66 #if 0
67 #define POINTER_DEBUG
68 #endif
69
70 MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
71 MODULE_DESCRIPTION("VIA VT82xx audio");
72 MODULE_LICENSE("GPL");
73 MODULE_SUPPORTED_DEVICE("{{VIA,VT82C686A/B/C,pci},{VIA,VT8233A/C,8235}}");
74
75 #if defined(CONFIG_GAMEPORT) || (defined(MODULE) && defined(CONFIG_GAMEPORT_MODULE))
76 #define SUPPORT_JOYSTICK 1
77 #endif
78
79 static int index = SNDRV_DEFAULT_IDX1; /* Index 0-MAX */
80 static char *id = SNDRV_DEFAULT_STR1; /* ID for this card */
81 static long mpu_port;
82 #ifdef SUPPORT_JOYSTICK
83 static int joystick;
84 #endif
85 static int ac97_clock = 48000;
86 static char *ac97_quirk;
87 static int dxs_support;
88 static int 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 int 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
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
1179 runtime->hw = snd_via82xx_hw;
1180
1181 /* set the hw rate condition */
1182 ratep = &chip->rates[viadev->direction];
1183 spin_lock_irq(&ratep->lock);
1184 ratep->used++;
1185 if (chip->spdif_on && viadev->reg_offset == 0x30) {
1186 /* DXS#3 and spdif is on */
1187 runtime->hw.rates = chip->ac97->rates[AC97_RATES_SPDIF];
1188 snd_pcm_limit_hw_rates(runtime);
1189 } else if (chip->dxs_fixed && viadev->reg_offset < 0x40) {
1190 /* fixed DXS playback rate */
1191 runtime->hw.rates = SNDRV_PCM_RATE_48000;
1192 runtime->hw.rate_min = runtime->hw.rate_max = 48000;
1193 } else if (chip->dxs_src && viadev->reg_offset < 0x40) {
1194 /* use full SRC capabilities of DXS */
1195 runtime->hw.rates = (SNDRV_PCM_RATE_CONTINUOUS |
1196 SNDRV_PCM_RATE_8000_48000);
1197 runtime->hw.rate_min = 8000;
1198 runtime->hw.rate_max = 48000;
1199 } else if (! ratep->rate) {
1200 int idx = viadev->direction ? AC97_RATES_ADC : AC97_RATES_FRONT_DAC;
1201 runtime->hw.rates = chip->ac97->rates[idx];
1202 snd_pcm_limit_hw_rates(runtime);
1203 } else {
1204 /* a fixed rate */
1205 runtime->hw.rates = SNDRV_PCM_RATE_KNOT;
1206 runtime->hw.rate_max = runtime->hw.rate_min = ratep->rate;
1207 }
1208 spin_unlock_irq(&ratep->lock);
1209
1210 /* we may remove following constaint when we modify table entries
1211 in interrupt */
1212 if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
1213 return err;
1214
1215 runtime->private_data = viadev;
1216 viadev->substream = substream;
1217
1218 return 0;
1219 }
1220
1221
1222 /*
1223 * open callback for playback on via686
1224 */
1225 static int snd_via686_playback_open(struct snd_pcm_substream *substream)
1226 {
1227 struct via82xx *chip = snd_pcm_substream_chip(substream);
1228 struct viadev *viadev = &chip->devs[chip->playback_devno + substream->number];
1229 int err;
1230
1231 if ((err = snd_via82xx_pcm_open(chip, viadev, substream)) < 0)
1232 return err;
1233 return 0;
1234 }
1235
1236 /*
1237 * open callback for playback on via823x DXS
1238 */
1239 static int snd_via8233_playback_open(struct snd_pcm_substream *substream)
1240 {
1241 struct via82xx *chip = snd_pcm_substream_chip(substream);
1242 struct viadev *viadev;
1243 unsigned int stream;
1244 int err;
1245
1246 viadev = &chip->devs[chip->playback_devno + substream->number];
1247 if ((err = snd_via82xx_pcm_open(chip, viadev, substream)) < 0)
1248 return err;
1249 stream = viadev->reg_offset / 0x10;
1250 if (chip->dxs_controls[stream]) {
1251 chip->playback_volume[stream][0] =
1252 VIA_DXS_MAX_VOLUME - (dxs_init_volume & 31);
1253 chip->playback_volume[stream][1] =
1254 VIA_DXS_MAX_VOLUME - (dxs_init_volume & 31);
1255 chip->dxs_controls[stream]->vd[0].access &=
1256 ~SNDRV_CTL_ELEM_ACCESS_INACTIVE;
1257 snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE |
1258 SNDRV_CTL_EVENT_MASK_INFO,
1259 &chip->dxs_controls[stream]->id);
1260 }
1261 return 0;
1262 }
1263
1264 /*
1265 * open callback for playback on via823x multi-channel
1266 */
1267 static int snd_via8233_multi_open(struct snd_pcm_substream *substream)
1268 {
1269 struct via82xx *chip = snd_pcm_substream_chip(substream);
1270 struct viadev *viadev = &chip->devs[chip->multi_devno];
1271 int err;
1272 /* channels constraint for VIA8233A
1273 * 3 and 5 channels are not supported
1274 */
1275 static unsigned int channels[] = {
1276 1, 2, 4, 6
1277 };
1278 static struct snd_pcm_hw_constraint_list hw_constraints_channels = {
1279 .count = ARRAY_SIZE(channels),
1280 .list = channels,
1281 .mask = 0,
1282 };
1283
1284 if ((err = snd_via82xx_pcm_open(chip, viadev, substream)) < 0)
1285 return err;
1286 substream->runtime->hw.channels_max = 6;
1287 if (chip->revision == VIA_REV_8233A)
1288 snd_pcm_hw_constraint_list(substream->runtime, 0,
1289 SNDRV_PCM_HW_PARAM_CHANNELS,
1290 &hw_constraints_channels);
1291 return 0;
1292 }
1293
1294 /*
1295 * open callback for capture on via686 and via823x
1296 */
1297 static int snd_via82xx_capture_open(struct snd_pcm_substream *substream)
1298 {
1299 struct via82xx *chip = snd_pcm_substream_chip(substream);
1300 struct viadev *viadev = &chip->devs[chip->capture_devno + substream->pcm->device];
1301
1302 return snd_via82xx_pcm_open(chip, viadev, substream);
1303 }
1304
1305 /*
1306 * close callback
1307 */
1308 static int snd_via82xx_pcm_close(struct snd_pcm_substream *substream)
1309 {
1310 struct via82xx *chip = snd_pcm_substream_chip(substream);
1311 struct viadev *viadev = substream->runtime->private_data;
1312 struct via_rate_lock *ratep;
1313
1314 /* release the rate lock */
1315 ratep = &chip->rates[viadev->direction];
1316 spin_lock_irq(&ratep->lock);
1317 ratep->used--;
1318 if (! ratep->used)
1319 ratep->rate = 0;
1320 spin_unlock_irq(&ratep->lock);
1321 if (! ratep->rate) {
1322 if (! viadev->direction) {
1323 snd_ac97_update_power(chip->ac97,
1324 AC97_PCM_FRONT_DAC_RATE, 0);
1325 snd_ac97_update_power(chip->ac97,
1326 AC97_PCM_SURR_DAC_RATE, 0);
1327 snd_ac97_update_power(chip->ac97,
1328 AC97_PCM_LFE_DAC_RATE, 0);
1329 } else
1330 snd_ac97_update_power(chip->ac97,
1331 AC97_PCM_LR_ADC_RATE, 0);
1332 }
1333 viadev->substream = NULL;
1334 return 0;
1335 }
1336
1337 static int snd_via8233_playback_close(struct snd_pcm_substream *substream)
1338 {
1339 struct via82xx *chip = snd_pcm_substream_chip(substream);
1340 struct viadev *viadev = substream->runtime->private_data;
1341 unsigned int stream;
1342
1343 stream = viadev->reg_offset / 0x10;
1344 if (chip->dxs_controls[stream]) {
1345 chip->dxs_controls[stream]->vd[0].access |=
1346 SNDRV_CTL_ELEM_ACCESS_INACTIVE;
1347 snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_INFO,
1348 &chip->dxs_controls[stream]->id);
1349 }
1350 return snd_via82xx_pcm_close(substream);
1351 }
1352
1353
1354 /* via686 playback callbacks */
1355 static struct snd_pcm_ops snd_via686_playback_ops = {
1356 .open = snd_via686_playback_open,
1357 .close = snd_via82xx_pcm_close,
1358 .ioctl = snd_pcm_lib_ioctl,
1359 .hw_params = snd_via82xx_hw_params,
1360 .hw_free = snd_via82xx_hw_free,
1361 .prepare = snd_via686_playback_prepare,
1362 .trigger = snd_via82xx_pcm_trigger,
1363 .pointer = snd_via686_pcm_pointer,
1364 .page = snd_pcm_sgbuf_ops_page,
1365 };
1366
1367 /* via686 capture callbacks */
1368 static struct snd_pcm_ops snd_via686_capture_ops = {
1369 .open = snd_via82xx_capture_open,
1370 .close = snd_via82xx_pcm_close,
1371 .ioctl = snd_pcm_lib_ioctl,
1372 .hw_params = snd_via82xx_hw_params,
1373 .hw_free = snd_via82xx_hw_free,
1374 .prepare = snd_via686_capture_prepare,
1375 .trigger = snd_via82xx_pcm_trigger,
1376 .pointer = snd_via686_pcm_pointer,
1377 .page = snd_pcm_sgbuf_ops_page,
1378 };
1379
1380 /* via823x DSX playback callbacks */
1381 static struct snd_pcm_ops snd_via8233_playback_ops = {
1382 .open = snd_via8233_playback_open,
1383 .close = snd_via8233_playback_close,
1384 .ioctl = snd_pcm_lib_ioctl,
1385 .hw_params = snd_via82xx_hw_params,
1386 .hw_free = snd_via82xx_hw_free,
1387 .prepare = snd_via8233_playback_prepare,
1388 .trigger = snd_via82xx_pcm_trigger,
1389 .pointer = snd_via8233_pcm_pointer,
1390 .page = snd_pcm_sgbuf_ops_page,
1391 };
1392
1393 /* via823x multi-channel playback callbacks */
1394 static struct snd_pcm_ops snd_via8233_multi_ops = {
1395 .open = snd_via8233_multi_open,
1396 .close = snd_via82xx_pcm_close,
1397 .ioctl = snd_pcm_lib_ioctl,
1398 .hw_params = snd_via82xx_hw_params,
1399 .hw_free = snd_via82xx_hw_free,
1400 .prepare = snd_via8233_multi_prepare,
1401 .trigger = snd_via82xx_pcm_trigger,
1402 .pointer = snd_via8233_pcm_pointer,
1403 .page = snd_pcm_sgbuf_ops_page,
1404 };
1405
1406 /* via823x capture callbacks */
1407 static struct snd_pcm_ops snd_via8233_capture_ops = {
1408 .open = snd_via82xx_capture_open,
1409 .close = snd_via82xx_pcm_close,
1410 .ioctl = snd_pcm_lib_ioctl,
1411 .hw_params = snd_via82xx_hw_params,
1412 .hw_free = snd_via82xx_hw_free,
1413 .prepare = snd_via8233_capture_prepare,
1414 .trigger = snd_via82xx_pcm_trigger,
1415 .pointer = snd_via8233_pcm_pointer,
1416 .page = snd_pcm_sgbuf_ops_page,
1417 };
1418
1419
1420 static void init_viadev(struct via82xx *chip, int idx, unsigned int reg_offset,
1421 int shadow_pos, int direction)
1422 {
1423 chip->devs[idx].reg_offset = reg_offset;
1424 chip->devs[idx].shadow_shift = shadow_pos * 4;
1425 chip->devs[idx].direction = direction;
1426 chip->devs[idx].port = chip->port + reg_offset;
1427 }
1428
1429 /*
1430 * create pcm instances for VIA8233, 8233C and 8235 (not 8233A)
1431 */
1432 static int __devinit snd_via8233_pcm_new(struct via82xx *chip)
1433 {
1434 struct snd_pcm *pcm;
1435 int i, err;
1436
1437 chip->playback_devno = 0; /* x 4 */
1438 chip->multi_devno = 4; /* x 1 */
1439 chip->capture_devno = 5; /* x 2 */
1440 chip->num_devs = 7;
1441 chip->intr_mask = 0x33033333; /* FLAG|EOL for rec0-1, mc, sdx0-3 */
1442
1443 /* PCM #0: 4 DSX playbacks and 1 capture */
1444 err = snd_pcm_new(chip->card, chip->card->shortname, 0, 4, 1, &pcm);
1445 if (err < 0)
1446 return err;
1447 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_via8233_playback_ops);
1448 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_via8233_capture_ops);
1449 pcm->private_data = chip;
1450 strcpy(pcm->name, chip->card->shortname);
1451 chip->pcms[0] = pcm;
1452 /* set up playbacks */
1453 for (i = 0; i < 4; i++)
1454 init_viadev(chip, i, 0x10 * i, i, 0);
1455 /* capture */
1456 init_viadev(chip, chip->capture_devno, VIA_REG_CAPTURE_8233_STATUS, 6, 1);
1457
1458 snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
1459 snd_dma_pci_data(chip->pci),
1460 64*1024, VIA_MAX_BUFSIZE);
1461
1462 /* PCM #1: multi-channel playback and 2nd capture */
1463 err = snd_pcm_new(chip->card, chip->card->shortname, 1, 1, 1, &pcm);
1464 if (err < 0)
1465 return err;
1466 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_via8233_multi_ops);
1467 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_via8233_capture_ops);
1468 pcm->private_data = chip;
1469 strcpy(pcm->name, chip->card->shortname);
1470 chip->pcms[1] = pcm;
1471 /* set up playback */
1472 init_viadev(chip, chip->multi_devno, VIA_REG_MULTPLAY_STATUS, 4, 0);
1473 /* set up capture */
1474 init_viadev(chip, chip->capture_devno + 1, VIA_REG_CAPTURE_8233_STATUS + 0x10, 7, 1);
1475
1476 snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
1477 snd_dma_pci_data(chip->pci),
1478 64*1024, VIA_MAX_BUFSIZE);
1479 return 0;
1480 }
1481
1482 /*
1483 * create pcm instances for VIA8233A
1484 */
1485 static int __devinit snd_via8233a_pcm_new(struct via82xx *chip)
1486 {
1487 struct snd_pcm *pcm;
1488 int err;
1489
1490 chip->multi_devno = 0;
1491 chip->playback_devno = 1;
1492 chip->capture_devno = 2;
1493 chip->num_devs = 3;
1494 chip->intr_mask = 0x03033000; /* FLAG|EOL for rec0, mc, sdx3 */
1495
1496 /* PCM #0: multi-channel playback and capture */
1497 err = snd_pcm_new(chip->card, chip->card->shortname, 0, 1, 1, &pcm);
1498 if (err < 0)
1499 return err;
1500 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_via8233_multi_ops);
1501 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_via8233_capture_ops);
1502 pcm->private_data = chip;
1503 strcpy(pcm->name, chip->card->shortname);
1504 chip->pcms[0] = pcm;
1505 /* set up playback */
1506 init_viadev(chip, chip->multi_devno, VIA_REG_MULTPLAY_STATUS, 4, 0);
1507 /* capture */
1508 init_viadev(chip, chip->capture_devno, VIA_REG_CAPTURE_8233_STATUS, 6, 1);
1509
1510 snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
1511 snd_dma_pci_data(chip->pci),
1512 64*1024, VIA_MAX_BUFSIZE);
1513
1514 /* SPDIF supported? */
1515 if (! ac97_can_spdif(chip->ac97))
1516 return 0;
1517
1518 /* PCM #1: DXS3 playback (for spdif) */
1519 err = snd_pcm_new(chip->card, chip->card->shortname, 1, 1, 0, &pcm);
1520 if (err < 0)
1521 return err;
1522 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_via8233_playback_ops);
1523 pcm->private_data = chip;
1524 strcpy(pcm->name, chip->card->shortname);
1525 chip->pcms[1] = pcm;
1526 /* set up playback */
1527 init_viadev(chip, chip->playback_devno, 0x30, 3, 0);
1528
1529 snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
1530 snd_dma_pci_data(chip->pci),
1531 64*1024, VIA_MAX_BUFSIZE);
1532 return 0;
1533 }
1534
1535 /*
1536 * create a pcm instance for via686a/b
1537 */
1538 static int __devinit snd_via686_pcm_new(struct via82xx *chip)
1539 {
1540 struct snd_pcm *pcm;
1541 int err;
1542
1543 chip->playback_devno = 0;
1544 chip->capture_devno = 1;
1545 chip->num_devs = 2;
1546 chip->intr_mask = 0x77; /* FLAG | EOL for PB, CP, FM */
1547
1548 err = snd_pcm_new(chip->card, chip->card->shortname, 0, 1, 1, &pcm);
1549 if (err < 0)
1550 return err;
1551 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_via686_playback_ops);
1552 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_via686_capture_ops);
1553 pcm->private_data = chip;
1554 strcpy(pcm->name, chip->card->shortname);
1555 chip->pcms[0] = pcm;
1556 init_viadev(chip, 0, VIA_REG_PLAYBACK_STATUS, 0, 0);
1557 init_viadev(chip, 1, VIA_REG_CAPTURE_STATUS, 0, 1);
1558
1559 snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
1560 snd_dma_pci_data(chip->pci),
1561 64*1024, VIA_MAX_BUFSIZE);
1562 return 0;
1563 }
1564
1565
1566 /*
1567 * Mixer part
1568 */
1569
1570 static int snd_via8233_capture_source_info(struct snd_kcontrol *kcontrol,
1571 struct snd_ctl_elem_info *uinfo)
1572 {
1573 /* formerly they were "Line" and "Mic", but it looks like that they
1574 * have nothing to do with the actual physical connections...
1575 */
1576 static char *texts[2] = {
1577 "Input1", "Input2"
1578 };
1579 uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
1580 uinfo->count = 1;
1581 uinfo->value.enumerated.items = 2;
1582 if (uinfo->value.enumerated.item >= 2)
1583 uinfo->value.enumerated.item = 1;
1584 strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
1585 return 0;
1586 }
1587
1588 static int snd_via8233_capture_source_get(struct snd_kcontrol *kcontrol,
1589 struct snd_ctl_elem_value *ucontrol)
1590 {
1591 struct via82xx *chip = snd_kcontrol_chip(kcontrol);
1592 unsigned long port = chip->port + (kcontrol->id.index ? (VIA_REG_CAPTURE_CHANNEL + 0x10) : VIA_REG_CAPTURE_CHANNEL);
1593 ucontrol->value.enumerated.item[0] = inb(port) & VIA_REG_CAPTURE_CHANNEL_MIC ? 1 : 0;
1594 return 0;
1595 }
1596
1597 static int snd_via8233_capture_source_put(struct snd_kcontrol *kcontrol,
1598 struct snd_ctl_elem_value *ucontrol)
1599 {
1600 struct via82xx *chip = snd_kcontrol_chip(kcontrol);
1601 unsigned long port = chip->port + (kcontrol->id.index ? (VIA_REG_CAPTURE_CHANNEL + 0x10) : VIA_REG_CAPTURE_CHANNEL);
1602 u8 val, oval;
1603
1604 spin_lock_irq(&chip->reg_lock);
1605 oval = inb(port);
1606 val = oval & ~VIA_REG_CAPTURE_CHANNEL_MIC;
1607 if (ucontrol->value.enumerated.item[0])
1608 val |= VIA_REG_CAPTURE_CHANNEL_MIC;
1609 if (val != oval)
1610 outb(val, port);
1611 spin_unlock_irq(&chip->reg_lock);
1612 return val != oval;
1613 }
1614
1615 static struct snd_kcontrol_new snd_via8233_capture_source __devinitdata = {
1616 .name = "Input Source Select",
1617 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1618 .info = snd_via8233_capture_source_info,
1619 .get = snd_via8233_capture_source_get,
1620 .put = snd_via8233_capture_source_put,
1621 };
1622
1623 #define snd_via8233_dxs3_spdif_info snd_ctl_boolean_mono_info
1624
1625 static int snd_via8233_dxs3_spdif_get(struct snd_kcontrol *kcontrol,
1626 struct snd_ctl_elem_value *ucontrol)
1627 {
1628 struct via82xx *chip = snd_kcontrol_chip(kcontrol);
1629 u8 val;
1630
1631 pci_read_config_byte(chip->pci, VIA8233_SPDIF_CTRL, &val);
1632 ucontrol->value.integer.value[0] = (val & VIA8233_SPDIF_DX3) ? 1 : 0;
1633 return 0;
1634 }
1635
1636 static int snd_via8233_dxs3_spdif_put(struct snd_kcontrol *kcontrol,
1637 struct snd_ctl_elem_value *ucontrol)
1638 {
1639 struct via82xx *chip = snd_kcontrol_chip(kcontrol);
1640 u8 val, oval;
1641
1642 pci_read_config_byte(chip->pci, VIA8233_SPDIF_CTRL, &oval);
1643 val = oval & ~VIA8233_SPDIF_DX3;
1644 if (ucontrol->value.integer.value[0])
1645 val |= VIA8233_SPDIF_DX3;
1646 /* save the spdif flag for rate filtering */
1647 chip->spdif_on = ucontrol->value.integer.value[0] ? 1 : 0;
1648 if (val != oval) {
1649 pci_write_config_byte(chip->pci, VIA8233_SPDIF_CTRL, val);
1650 return 1;
1651 }
1652 return 0;
1653 }
1654
1655 static struct snd_kcontrol_new snd_via8233_dxs3_spdif_control __devinitdata = {
1656 .name = SNDRV_CTL_NAME_IEC958("Output ",NONE,SWITCH),
1657 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1658 .info = snd_via8233_dxs3_spdif_info,
1659 .get = snd_via8233_dxs3_spdif_get,
1660 .put = snd_via8233_dxs3_spdif_put,
1661 };
1662
1663 static int snd_via8233_dxs_volume_info(struct snd_kcontrol *kcontrol,
1664 struct snd_ctl_elem_info *uinfo)
1665 {
1666 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
1667 uinfo->count = 2;
1668 uinfo->value.integer.min = 0;
1669 uinfo->value.integer.max = VIA_DXS_MAX_VOLUME;
1670 return 0;
1671 }
1672
1673 static int snd_via8233_dxs_volume_get(struct snd_kcontrol *kcontrol,
1674 struct snd_ctl_elem_value *ucontrol)
1675 {
1676 struct via82xx *chip = snd_kcontrol_chip(kcontrol);
1677 unsigned int idx = kcontrol->id.subdevice;
1678
1679 ucontrol->value.integer.value[0] = VIA_DXS_MAX_VOLUME - chip->playback_volume[idx][0];
1680 ucontrol->value.integer.value[1] = VIA_DXS_MAX_VOLUME - chip->playback_volume[idx][1];
1681 return 0;
1682 }
1683
1684 static int snd_via8233_pcmdxs_volume_get(struct snd_kcontrol *kcontrol,
1685 struct snd_ctl_elem_value *ucontrol)
1686 {
1687 struct via82xx *chip = snd_kcontrol_chip(kcontrol);
1688 ucontrol->value.integer.value[0] = VIA_DXS_MAX_VOLUME - chip->playback_volume_c[0];
1689 ucontrol->value.integer.value[1] = VIA_DXS_MAX_VOLUME - chip->playback_volume_c[1];
1690 return 0;
1691 }
1692
1693 static int snd_via8233_dxs_volume_put(struct snd_kcontrol *kcontrol,
1694 struct snd_ctl_elem_value *ucontrol)
1695 {
1696 struct via82xx *chip = snd_kcontrol_chip(kcontrol);
1697 unsigned int idx = kcontrol->id.subdevice;
1698 unsigned long port = chip->port + 0x10 * idx;
1699 unsigned char val;
1700 int i, change = 0;
1701
1702 for (i = 0; i < 2; i++) {
1703 val = ucontrol->value.integer.value[i];
1704 if (val > VIA_DXS_MAX_VOLUME)
1705 val = VIA_DXS_MAX_VOLUME;
1706 val = VIA_DXS_MAX_VOLUME - val;
1707 change |= val != chip->playback_volume[idx][i];
1708 if (change) {
1709 chip->playback_volume[idx][i] = val;
1710 outb(val, port + VIA_REG_OFS_PLAYBACK_VOLUME_L + i);
1711 }
1712 }
1713 return change;
1714 }
1715
1716 static int snd_via8233_pcmdxs_volume_put(struct snd_kcontrol *kcontrol,
1717 struct snd_ctl_elem_value *ucontrol)
1718 {
1719 struct via82xx *chip = snd_kcontrol_chip(kcontrol);
1720 unsigned int idx;
1721 unsigned char val;
1722 int i, change = 0;
1723
1724 for (i = 0; i < 2; i++) {
1725 val = ucontrol->value.integer.value[i];
1726 if (val > VIA_DXS_MAX_VOLUME)
1727 val = VIA_DXS_MAX_VOLUME;
1728 val = VIA_DXS_MAX_VOLUME - val;
1729 if (val != chip->playback_volume_c[i]) {
1730 change = 1;
1731 chip->playback_volume_c[i] = val;
1732 for (idx = 0; idx < 4; idx++) {
1733 unsigned long port = chip->port + 0x10 * idx;
1734 chip->playback_volume[idx][i] = val;
1735 outb(val, port + VIA_REG_OFS_PLAYBACK_VOLUME_L + i);
1736 }
1737 }
1738 }
1739 return change;
1740 }
1741
1742 static const DECLARE_TLV_DB_SCALE(db_scale_dxs, -4650, 150, 1);
1743
1744 static struct snd_kcontrol_new snd_via8233_pcmdxs_volume_control __devinitdata = {
1745 .name = "PCM Playback Volume",
1746 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1747 .access = (SNDRV_CTL_ELEM_ACCESS_READWRITE |
1748 SNDRV_CTL_ELEM_ACCESS_TLV_READ),
1749 .info = snd_via8233_dxs_volume_info,
1750 .get = snd_via8233_pcmdxs_volume_get,
1751 .put = snd_via8233_pcmdxs_volume_put,
1752 .tlv = { .p = db_scale_dxs }
1753 };
1754
1755 static struct snd_kcontrol_new snd_via8233_dxs_volume_control __devinitdata = {
1756 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
1757 .device = 0,
1758 /* .subdevice set later */
1759 .name = "PCM Playback Volume",
1760 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE |
1761 SNDRV_CTL_ELEM_ACCESS_TLV_READ |
1762 SNDRV_CTL_ELEM_ACCESS_INACTIVE,
1763 .info = snd_via8233_dxs_volume_info,
1764 .get = snd_via8233_dxs_volume_get,
1765 .put = snd_via8233_dxs_volume_put,
1766 .tlv = { .p = db_scale_dxs }
1767 };
1768
1769 /*
1770 */
1771
1772 static void snd_via82xx_mixer_free_ac97_bus(struct snd_ac97_bus *bus)
1773 {
1774 struct via82xx *chip = bus->private_data;
1775 chip->ac97_bus = NULL;
1776 }
1777
1778 static void snd_via82xx_mixer_free_ac97(struct snd_ac97 *ac97)
1779 {
1780 struct via82xx *chip = ac97->private_data;
1781 chip->ac97 = NULL;
1782 }
1783
1784 static struct ac97_quirk ac97_quirks[] = {
1785 {
1786 .subvendor = 0x1106,
1787 .subdevice = 0x4161,
1788 .codec_id = 0x56494161, /* VT1612A */
1789 .name = "Soltek SL-75DRV5",
1790 .type = AC97_TUNE_NONE
1791 },
1792 { /* FIXME: which codec? */
1793 .subvendor = 0x1106,
1794 .subdevice = 0x4161,
1795 .name = "ASRock K7VT2",
1796 .type = AC97_TUNE_HP_ONLY
1797 },
1798 {
1799 .subvendor = 0x110a,
1800 .subdevice = 0x0079,
1801 .name = "Fujitsu Siemens D1289",
1802 .type = AC97_TUNE_HP_ONLY
1803 },
1804 {
1805 .subvendor = 0x1019,
1806 .subdevice = 0x0a81,
1807 .name = "ECS K7VTA3",
1808 .type = AC97_TUNE_HP_ONLY
1809 },
1810 {
1811 .subvendor = 0x1019,
1812 .subdevice = 0x0a85,
1813 .name = "ECS L7VMM2",
1814 .type = AC97_TUNE_HP_ONLY
1815 },
1816 {
1817 .subvendor = 0x1019,
1818 .subdevice = 0x1841,
1819 .name = "ECS K7VTA3",
1820 .type = AC97_TUNE_HP_ONLY
1821 },
1822 {
1823 .subvendor = 0x1849,
1824 .subdevice = 0x3059,
1825 .name = "ASRock K7VM2",
1826 .type = AC97_TUNE_HP_ONLY /* VT1616 */
1827 },
1828 {
1829 .subvendor = 0x14cd,
1830 .subdevice = 0x7002,
1831 .name = "Unknown",
1832 .type = AC97_TUNE_ALC_JACK
1833 },
1834 {
1835 .subvendor = 0x1071,
1836 .subdevice = 0x8590,
1837 .name = "Mitac Mobo",
1838 .type = AC97_TUNE_ALC_JACK
1839 },
1840 {
1841 .subvendor = 0x161f,
1842 .subdevice = 0x202b,
1843 .name = "Arima Notebook",
1844 .type = AC97_TUNE_HP_ONLY,
1845 },
1846 {
1847 .subvendor = 0x161f,
1848 .subdevice = 0x2032,
1849 .name = "Targa Traveller 811",
1850 .type = AC97_TUNE_HP_ONLY,
1851 },
1852 {
1853 .subvendor = 0x161f,
1854 .subdevice = 0x2032,
1855 .name = "m680x",
1856 .type = AC97_TUNE_HP_ONLY, /* http://launchpad.net/bugs/38546 */
1857 },
1858 {
1859 .subvendor = 0x1297,
1860 .subdevice = 0xa232,
1861 .name = "Shuttle AK32VN",
1862 .type = AC97_TUNE_HP_ONLY
1863 },
1864 { } /* terminator */
1865 };
1866
1867 static int __devinit snd_via82xx_mixer_new(struct via82xx *chip, const char *quirk_override)
1868 {
1869 struct snd_ac97_template ac97;
1870 int err;
1871 static struct snd_ac97_bus_ops ops = {
1872 .write = snd_via82xx_codec_write,
1873 .read = snd_via82xx_codec_read,
1874 .wait = snd_via82xx_codec_wait,
1875 };
1876
1877 if ((err = snd_ac97_bus(chip->card, 0, &ops, chip, &chip->ac97_bus)) < 0)
1878 return err;
1879 chip->ac97_bus->private_free = snd_via82xx_mixer_free_ac97_bus;
1880 chip->ac97_bus->clock = chip->ac97_clock;
1881
1882 memset(&ac97, 0, sizeof(ac97));
1883 ac97.private_data = chip;
1884 ac97.private_free = snd_via82xx_mixer_free_ac97;
1885 ac97.pci = chip->pci;
1886 ac97.scaps = AC97_SCAP_SKIP_MODEM | AC97_SCAP_POWER_SAVE;
1887 if ((err = snd_ac97_mixer(chip->ac97_bus, &ac97, &chip->ac97)) < 0)
1888 return err;
1889
1890 snd_ac97_tune_hardware(chip->ac97, ac97_quirks, quirk_override);
1891
1892 if (chip->chip_type != TYPE_VIA686) {
1893 /* use slot 10/11 */
1894 snd_ac97_update_bits(chip->ac97, AC97_EXTENDED_STATUS, 0x03 << 4, 0x03 << 4);
1895 }
1896
1897 return 0;
1898 }
1899
1900 #ifdef SUPPORT_JOYSTICK
1901 #define JOYSTICK_ADDR 0x200
1902 static int __devinit snd_via686_create_gameport(struct via82xx *chip, unsigned char *legacy)
1903 {
1904 struct gameport *gp;
1905 struct resource *r;
1906
1907 if (!joystick)
1908 return -ENODEV;
1909
1910 r = request_region(JOYSTICK_ADDR, 8, "VIA686 gameport");
1911 if (!r) {
1912 printk(KERN_WARNING "via82xx: cannot reserve joystick port 0x%#x\n",
1913 JOYSTICK_ADDR);
1914 return -EBUSY;
1915 }
1916
1917 chip->gameport = gp = gameport_allocate_port();
1918 if (!gp) {
1919 printk(KERN_ERR "via82xx: cannot allocate memory for gameport\n");
1920 release_and_free_resource(r);
1921 return -ENOMEM;
1922 }
1923
1924 gameport_set_name(gp, "VIA686 Gameport");
1925 gameport_set_phys(gp, "pci%s/gameport0", pci_name(chip->pci));
1926 gameport_set_dev_parent(gp, &chip->pci->dev);
1927 gp->io = JOYSTICK_ADDR;
1928 gameport_set_port_data(gp, r);
1929
1930 /* Enable legacy joystick port */
1931 *legacy |= VIA_FUNC_ENABLE_GAME;
1932 pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE, *legacy);
1933
1934 gameport_register_port(chip->gameport);
1935
1936 return 0;
1937 }
1938
1939 static void snd_via686_free_gameport(struct via82xx *chip)
1940 {
1941 if (chip->gameport) {
1942 struct resource *r = gameport_get_port_data(chip->gameport);
1943
1944 gameport_unregister_port(chip->gameport);
1945 chip->gameport = NULL;
1946 release_and_free_resource(r);
1947 }
1948 }
1949 #else
1950 static inline int snd_via686_create_gameport(struct via82xx *chip, unsigned char *legacy)
1951 {
1952 return -ENOSYS;
1953 }
1954 static inline void snd_via686_free_gameport(struct via82xx *chip) { }
1955 #endif
1956
1957
1958 /*
1959 *
1960 */
1961
1962 static int __devinit snd_via8233_init_misc(struct via82xx *chip)
1963 {
1964 int i, err, caps;
1965 unsigned char val;
1966
1967 caps = chip->chip_type == TYPE_VIA8233A ? 1 : 2;
1968 for (i = 0; i < caps; i++) {
1969 snd_via8233_capture_source.index = i;
1970 err = snd_ctl_add(chip->card, snd_ctl_new1(&snd_via8233_capture_source, chip));
1971 if (err < 0)
1972 return err;
1973 }
1974 if (ac97_can_spdif(chip->ac97)) {
1975 err = snd_ctl_add(chip->card, snd_ctl_new1(&snd_via8233_dxs3_spdif_control, chip));
1976 if (err < 0)
1977 return err;
1978 }
1979 if (chip->chip_type != TYPE_VIA8233A) {
1980 /* when no h/w PCM volume control is found, use DXS volume control
1981 * as the PCM vol control
1982 */
1983 struct snd_ctl_elem_id sid;
1984 memset(&sid, 0, sizeof(sid));
1985 strcpy(sid.name, "PCM Playback Volume");
1986 sid.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
1987 if (! snd_ctl_find_id(chip->card, &sid)) {
1988 snd_printd(KERN_INFO "Using DXS as PCM Playback\n");
1989 err = snd_ctl_add(chip->card, snd_ctl_new1(&snd_via8233_pcmdxs_volume_control, chip));
1990 if (err < 0)
1991 return err;
1992 }
1993 else /* Using DXS when PCM emulation is enabled is really weird */
1994 {
1995 for (i = 0; i < 4; ++i) {
1996 struct snd_kcontrol *kctl;
1997
1998 kctl = snd_ctl_new1(
1999 &snd_via8233_dxs_volume_control, chip);
2000 if (!kctl)
2001 return -ENOMEM;
2002 kctl->id.subdevice = i;
2003 err = snd_ctl_add(chip->card, kctl);
2004 if (err < 0)
2005 return err;
2006 chip->dxs_controls[i] = kctl;
2007 }
2008 }
2009 }
2010 /* select spdif data slot 10/11 */
2011 pci_read_config_byte(chip->pci, VIA8233_SPDIF_CTRL, &val);
2012 val = (val & ~VIA8233_SPDIF_SLOT_MASK) | VIA8233_SPDIF_SLOT_1011;
2013 val &= ~VIA8233_SPDIF_DX3; /* SPDIF off as default */
2014 pci_write_config_byte(chip->pci, VIA8233_SPDIF_CTRL, val);
2015
2016 return 0;
2017 }
2018
2019 static int __devinit snd_via686_init_misc(struct via82xx *chip)
2020 {
2021 unsigned char legacy, legacy_cfg;
2022 int rev_h = 0;
2023
2024 legacy = chip->old_legacy;
2025 legacy_cfg = chip->old_legacy_cfg;
2026 legacy |= VIA_FUNC_MIDI_IRQMASK; /* FIXME: correct? (disable MIDI) */
2027 legacy &= ~VIA_FUNC_ENABLE_GAME; /* disable joystick */
2028 if (chip->revision >= VIA_REV_686_H) {
2029 rev_h = 1;
2030 if (mpu_port >= 0x200) { /* force MIDI */
2031 mpu_port &= 0xfffc;
2032 pci_write_config_dword(chip->pci, 0x18, mpu_port | 0x01);
2033 #ifdef CONFIG_PM
2034 chip->mpu_port_saved = mpu_port;
2035 #endif
2036 } else {
2037 mpu_port = pci_resource_start(chip->pci, 2);
2038 }
2039 } else {
2040 switch (mpu_port) { /* force MIDI */
2041 case 0x300:
2042 case 0x310:
2043 case 0x320:
2044 case 0x330:
2045 legacy_cfg &= ~(3 << 2);
2046 legacy_cfg |= (mpu_port & 0x0030) >> 2;
2047 break;
2048 default: /* no, use BIOS settings */
2049 if (legacy & VIA_FUNC_ENABLE_MIDI)
2050 mpu_port = 0x300 + ((legacy_cfg & 0x000c) << 2);
2051 break;
2052 }
2053 }
2054 if (mpu_port >= 0x200 &&
2055 (chip->mpu_res = request_region(mpu_port, 2, "VIA82xx MPU401"))
2056 != NULL) {
2057 if (rev_h)
2058 legacy |= VIA_FUNC_MIDI_PNP; /* enable PCI I/O 2 */
2059 legacy |= VIA_FUNC_ENABLE_MIDI;
2060 } else {
2061 if (rev_h)
2062 legacy &= ~VIA_FUNC_MIDI_PNP; /* disable PCI I/O 2 */
2063 legacy &= ~VIA_FUNC_ENABLE_MIDI;
2064 mpu_port = 0;
2065 }
2066
2067 pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE, legacy);
2068 pci_write_config_byte(chip->pci, VIA_PNP_CONTROL, legacy_cfg);
2069 if (chip->mpu_res) {
2070 if (snd_mpu401_uart_new(chip->card, 0, MPU401_HW_VIA686A,
2071 mpu_port, MPU401_INFO_INTEGRATED,
2072 chip->irq, 0, &chip->rmidi) < 0) {
2073 printk(KERN_WARNING "unable to initialize MPU-401"
2074 " at 0x%lx, skipping\n", mpu_port);
2075 legacy &= ~VIA_FUNC_ENABLE_MIDI;
2076 } else {
2077 legacy &= ~VIA_FUNC_MIDI_IRQMASK; /* enable MIDI interrupt */
2078 }
2079 pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE, legacy);
2080 }
2081
2082 snd_via686_create_gameport(chip, &legacy);
2083
2084 #ifdef CONFIG_PM
2085 chip->legacy_saved = legacy;
2086 chip->legacy_cfg_saved = legacy_cfg;
2087 #endif
2088
2089 return 0;
2090 }
2091
2092
2093 /*
2094 * proc interface
2095 */
2096 static void snd_via82xx_proc_read(struct snd_info_entry *entry,
2097 struct snd_info_buffer *buffer)
2098 {
2099 struct via82xx *chip = entry->private_data;
2100 int i;
2101
2102 snd_iprintf(buffer, "%s\n\n", chip->card->longname);
2103 for (i = 0; i < 0xa0; i += 4) {
2104 snd_iprintf(buffer, "%02x: %08x\n", i, inl(chip->port + i));
2105 }
2106 }
2107
2108 static void __devinit snd_via82xx_proc_init(struct via82xx *chip)
2109 {
2110 struct snd_info_entry *entry;
2111
2112 if (! snd_card_proc_new(chip->card, "via82xx", &entry))
2113 snd_info_set_text_ops(entry, chip, snd_via82xx_proc_read);
2114 }
2115
2116 /*
2117 *
2118 */
2119
2120 static int snd_via82xx_chip_init(struct via82xx *chip)
2121 {
2122 unsigned int val;
2123 unsigned long end_time;
2124 unsigned char pval;
2125
2126 #if 0 /* broken on K7M? */
2127 if (chip->chip_type == TYPE_VIA686)
2128 /* disable all legacy ports */
2129 pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE, 0);
2130 #endif
2131 pci_read_config_byte(chip->pci, VIA_ACLINK_STAT, &pval);
2132 if (! (pval & VIA_ACLINK_C00_READY)) { /* codec not ready? */
2133 /* deassert ACLink reset, force SYNC */
2134 pci_write_config_byte(chip->pci, VIA_ACLINK_CTRL,
2135 VIA_ACLINK_CTRL_ENABLE |
2136 VIA_ACLINK_CTRL_RESET |
2137 VIA_ACLINK_CTRL_SYNC);
2138 udelay(100);
2139 #if 1 /* FIXME: should we do full reset here for all chip models? */
2140 pci_write_config_byte(chip->pci, VIA_ACLINK_CTRL, 0x00);
2141 udelay(100);
2142 #else
2143 /* deassert ACLink reset, force SYNC (warm AC'97 reset) */
2144 pci_write_config_byte(chip->pci, VIA_ACLINK_CTRL,
2145 VIA_ACLINK_CTRL_RESET|VIA_ACLINK_CTRL_SYNC);
2146 udelay(2);
2147 #endif
2148 /* ACLink on, deassert ACLink reset, VSR, SGD data out */
2149 /* note - FM data out has trouble with non VRA codecs !! */
2150 pci_write_config_byte(chip->pci, VIA_ACLINK_CTRL, VIA_ACLINK_CTRL_INIT);
2151 udelay(100);
2152 }
2153
2154 /* Make sure VRA is enabled, in case we didn't do a
2155 * complete codec reset, above */
2156 pci_read_config_byte(chip->pci, VIA_ACLINK_CTRL, &pval);
2157 if ((pval & VIA_ACLINK_CTRL_INIT) != VIA_ACLINK_CTRL_INIT) {
2158 /* ACLink on, deassert ACLink reset, VSR, SGD data out */
2159 /* note - FM data out has trouble with non VRA codecs !! */
2160 pci_write_config_byte(chip->pci, VIA_ACLINK_CTRL, VIA_ACLINK_CTRL_INIT);
2161 udelay(100);
2162 }
2163
2164 /* wait until codec ready */
2165 end_time = jiffies + msecs_to_jiffies(750);
2166 do {
2167 pci_read_config_byte(chip->pci, VIA_ACLINK_STAT, &pval);
2168 if (pval & VIA_ACLINK_C00_READY) /* primary codec ready */
2169 break;
2170 schedule_timeout_uninterruptible(1);
2171 } while (time_before(jiffies, end_time));
2172
2173 if ((val = snd_via82xx_codec_xread(chip)) & VIA_REG_AC97_BUSY)
2174 snd_printk(KERN_ERR "AC'97 codec is not ready [0x%x]\n", val);
2175
2176 #if 0 /* FIXME: we don't support the second codec yet so skip the detection now.. */
2177 snd_via82xx_codec_xwrite(chip, VIA_REG_AC97_READ |
2178 VIA_REG_AC97_SECONDARY_VALID |
2179 (VIA_REG_AC97_CODEC_ID_SECONDARY << VIA_REG_AC97_CODEC_ID_SHIFT));
2180 end_time = jiffies + msecs_to_jiffies(750);
2181 snd_via82xx_codec_xwrite(chip, VIA_REG_AC97_READ |
2182 VIA_REG_AC97_SECONDARY_VALID |
2183 (VIA_REG_AC97_CODEC_ID_SECONDARY << VIA_REG_AC97_CODEC_ID_SHIFT));
2184 do {
2185 if ((val = snd_via82xx_codec_xread(chip)) & VIA_REG_AC97_SECONDARY_VALID) {
2186 chip->ac97_secondary = 1;
2187 goto __ac97_ok2;
2188 }
2189 schedule_timeout_uninterruptible(1);
2190 } while (time_before(jiffies, end_time));
2191 /* This is ok, the most of motherboards have only one codec */
2192
2193 __ac97_ok2:
2194 #endif
2195
2196 if (chip->chip_type == TYPE_VIA686) {
2197 /* route FM trap to IRQ, disable FM trap */
2198 pci_write_config_byte(chip->pci, VIA_FM_NMI_CTRL, 0);
2199 /* disable all GPI interrupts */
2200 outl(0, VIAREG(chip, GPI_INTR));
2201 }
2202
2203 if (chip->chip_type != TYPE_VIA686) {
2204 /* Workaround for Award BIOS bug:
2205 * DXS channels don't work properly with VRA if MC97 is disabled.
2206 */
2207 struct pci_dev *pci;
2208 pci = pci_get_device(0x1106, 0x3068, NULL); /* MC97 */
2209 if (pci) {
2210 unsigned char data;
2211 pci_read_config_byte(pci, 0x44, &data);
2212 pci_write_config_byte(pci, 0x44, data | 0x40);
2213 pci_dev_put(pci);
2214 }
2215 }
2216
2217 if (chip->chip_type != TYPE_VIA8233A) {
2218 int i, idx;
2219 for (idx = 0; idx < 4; idx++) {
2220 unsigned long port = chip->port + 0x10 * idx;
2221 for (i = 0; i < 2; i++) {
2222 chip->playback_volume[idx][i]=chip->playback_volume_c[i];
2223 outb(chip->playback_volume_c[i],
2224 port + VIA_REG_OFS_PLAYBACK_VOLUME_L + i);
2225 }
2226 }
2227 }
2228
2229 return 0;
2230 }
2231
2232 #ifdef CONFIG_PM
2233 /*
2234 * power management
2235 */
2236 static int snd_via82xx_suspend(struct pci_dev *pci, pm_message_t state)
2237 {
2238 struct snd_card *card = pci_get_drvdata(pci);
2239 struct via82xx *chip = card->private_data;
2240 int i;
2241
2242 snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
2243 for (i = 0; i < 2; i++)
2244 snd_pcm_suspend_all(chip->pcms[i]);
2245 for (i = 0; i < chip->num_devs; i++)
2246 snd_via82xx_channel_reset(chip, &chip->devs[i]);
2247 synchronize_irq(chip->irq);
2248 snd_ac97_suspend(chip->ac97);
2249
2250 /* save misc values */
2251 if (chip->chip_type != TYPE_VIA686) {
2252 pci_read_config_byte(chip->pci, VIA8233_SPDIF_CTRL, &chip->spdif_ctrl_saved);
2253 chip->capture_src_saved[0] = inb(chip->port + VIA_REG_CAPTURE_CHANNEL);
2254 chip->capture_src_saved[1] = inb(chip->port + VIA_REG_CAPTURE_CHANNEL + 0x10);
2255 }
2256
2257 pci_disable_device(pci);
2258 pci_save_state(pci);
2259 pci_set_power_state(pci, pci_choose_state(pci, state));
2260 return 0;
2261 }
2262
2263 static int snd_via82xx_resume(struct pci_dev *pci)
2264 {
2265 struct snd_card *card = pci_get_drvdata(pci);
2266 struct via82xx *chip = card->private_data;
2267 int i;
2268
2269 pci_set_power_state(pci, PCI_D0);
2270 pci_restore_state(pci);
2271 if (pci_enable_device(pci) < 0) {
2272 printk(KERN_ERR "via82xx: pci_enable_device failed, "
2273 "disabling device\n");
2274 snd_card_disconnect(card);
2275 return -EIO;
2276 }
2277 pci_set_master(pci);
2278
2279 snd_via82xx_chip_init(chip);
2280
2281 if (chip->chip_type == TYPE_VIA686) {
2282 if (chip->mpu_port_saved)
2283 pci_write_config_dword(chip->pci, 0x18, chip->mpu_port_saved | 0x01);
2284 pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE, chip->legacy_saved);
2285 pci_write_config_byte(chip->pci, VIA_PNP_CONTROL, chip->legacy_cfg_saved);
2286 } else {
2287 pci_write_config_byte(chip->pci, VIA8233_SPDIF_CTRL, chip->spdif_ctrl_saved);
2288 outb(chip->capture_src_saved[0], chip->port + VIA_REG_CAPTURE_CHANNEL);
2289 outb(chip->capture_src_saved[1], chip->port + VIA_REG_CAPTURE_CHANNEL + 0x10);
2290 }
2291
2292 snd_ac97_resume(chip->ac97);
2293
2294 for (i = 0; i < chip->num_devs; i++)
2295 snd_via82xx_channel_reset(chip, &chip->devs[i]);
2296
2297 snd_power_change_state(card, SNDRV_CTL_POWER_D0);
2298 return 0;
2299 }
2300 #endif /* CONFIG_PM */
2301
2302 static int snd_via82xx_free(struct via82xx *chip)
2303 {
2304 unsigned int i;
2305
2306 if (chip->irq < 0)
2307 goto __end_hw;
2308 /* disable interrupts */
2309 for (i = 0; i < chip->num_devs; i++)
2310 snd_via82xx_channel_reset(chip, &chip->devs[i]);
2311
2312 if (chip->irq >= 0)
2313 free_irq(chip->irq, chip);
2314 __end_hw:
2315 release_and_free_resource(chip->mpu_res);
2316 pci_release_regions(chip->pci);
2317
2318 if (chip->chip_type == TYPE_VIA686) {
2319 snd_via686_free_gameport(chip);
2320 pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE, chip->old_legacy);
2321 pci_write_config_byte(chip->pci, VIA_PNP_CONTROL, chip->old_legacy_cfg);
2322 }
2323 pci_disable_device(chip->pci);
2324 kfree(chip);
2325 return 0;
2326 }
2327
2328 static int snd_via82xx_dev_free(struct snd_device *device)
2329 {
2330 struct via82xx *chip = device->device_data;
2331 return snd_via82xx_free(chip);
2332 }
2333
2334 static int __devinit snd_via82xx_create(struct snd_card *card,
2335 struct pci_dev *pci,
2336 int chip_type,
2337 int revision,
2338 unsigned int ac97_clock,
2339 struct via82xx ** r_via)
2340 {
2341 struct via82xx *chip;
2342 int err;
2343 static struct snd_device_ops ops = {
2344 .dev_free = snd_via82xx_dev_free,
2345 };
2346
2347 if ((err = pci_enable_device(pci)) < 0)
2348 return err;
2349
2350 if ((chip = kzalloc(sizeof(*chip), GFP_KERNEL)) == NULL) {
2351 pci_disable_device(pci);
2352 return -ENOMEM;
2353 }
2354
2355 chip->chip_type = chip_type;
2356 chip->revision = revision;
2357
2358 spin_lock_init(&chip->reg_lock);
2359 spin_lock_init(&chip->rates[0].lock);
2360 spin_lock_init(&chip->rates[1].lock);
2361 chip->card = card;
2362 chip->pci = pci;
2363 chip->irq = -1;
2364
2365 pci_read_config_byte(pci, VIA_FUNC_ENABLE, &chip->old_legacy);
2366 pci_read_config_byte(pci, VIA_PNP_CONTROL, &chip->old_legacy_cfg);
2367 pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE,
2368 chip->old_legacy & ~(VIA_FUNC_ENABLE_SB|VIA_FUNC_ENABLE_FM));
2369
2370 if ((err = pci_request_regions(pci, card->driver)) < 0) {
2371 kfree(chip);
2372 pci_disable_device(pci);
2373 return err;
2374 }
2375 chip->port = pci_resource_start(pci, 0);
2376 if (request_irq(pci->irq,
2377 chip_type == TYPE_VIA8233 ?
2378 snd_via8233_interrupt : snd_via686_interrupt,
2379 IRQF_SHARED,
2380 card->driver, chip)) {
2381 snd_printk(KERN_ERR "unable to grab IRQ %d\n", pci->irq);
2382 snd_via82xx_free(chip);
2383 return -EBUSY;
2384 }
2385 chip->irq = pci->irq;
2386 if (ac97_clock >= 8000 && ac97_clock <= 48000)
2387 chip->ac97_clock = ac97_clock;
2388 synchronize_irq(chip->irq);
2389
2390 if ((err = snd_via82xx_chip_init(chip)) < 0) {
2391 snd_via82xx_free(chip);
2392 return err;
2393 }
2394
2395 if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
2396 snd_via82xx_free(chip);
2397 return err;
2398 }
2399
2400 /* The 8233 ac97 controller does not implement the master bit
2401 * in the pci command register. IMHO this is a violation of the PCI spec.
2402 * We call pci_set_master here because it does not hurt. */
2403 pci_set_master(pci);
2404
2405 snd_card_set_dev(card, &pci->dev);
2406
2407 *r_via = chip;
2408 return 0;
2409 }
2410
2411 struct via823x_info {
2412 int revision;
2413 char *name;
2414 int type;
2415 };
2416 static struct via823x_info via823x_cards[] __devinitdata = {
2417 { VIA_REV_PRE_8233, "VIA 8233-Pre", TYPE_VIA8233 },
2418 { VIA_REV_8233C, "VIA 8233C", TYPE_VIA8233 },
2419 { VIA_REV_8233, "VIA 8233", TYPE_VIA8233 },
2420 { VIA_REV_8233A, "VIA 8233A", TYPE_VIA8233A },
2421 { VIA_REV_8235, "VIA 8235", TYPE_VIA8233 },
2422 { VIA_REV_8237, "VIA 8237", TYPE_VIA8233 },
2423 { VIA_REV_8251, "VIA 8251", TYPE_VIA8233 },
2424 };
2425
2426 /*
2427 * auto detection of DXS channel supports.
2428 */
2429
2430 static struct snd_pci_quirk dxs_whitelist[] __devinitdata = {
2431 SND_PCI_QUIRK(0x1005, 0x4710, "Avance Logic Mobo", VIA_DXS_ENABLE),
2432 SND_PCI_QUIRK(0x1019, 0x0996, "ESC Mobo", VIA_DXS_48K),
2433 SND_PCI_QUIRK(0x1019, 0x0a81, "ECS K7VTA3 v8.0", VIA_DXS_NO_VRA),
2434 SND_PCI_QUIRK(0x1019, 0x0a85, "ECS L7VMM2", VIA_DXS_NO_VRA),
2435 SND_PCI_QUIRK_VENDOR(0x1019, "ESC K8", VIA_DXS_SRC),
2436 SND_PCI_QUIRK(0x1019, 0xaa01, "ESC K8T890-A", VIA_DXS_SRC),
2437 SND_PCI_QUIRK(0x1025, 0x0033, "Acer Inspire 1353LM", VIA_DXS_NO_VRA),
2438 SND_PCI_QUIRK(0x1025, 0x0046, "Acer Aspire 1524 WLMi", VIA_DXS_SRC),
2439 SND_PCI_QUIRK_VENDOR(0x1043, "ASUS A7/A8", VIA_DXS_NO_VRA),
2440 SND_PCI_QUIRK_VENDOR(0x1071, "Diverse Notebook", VIA_DXS_NO_VRA),
2441 SND_PCI_QUIRK(0x10cf, 0x118e, "FSC Laptop", VIA_DXS_ENABLE),
2442 SND_PCI_QUIRK_VENDOR(0x1106, "ASRock", VIA_DXS_SRC),
2443 SND_PCI_QUIRK(0x1297, 0xa231, "Shuttle AK31v2", VIA_DXS_SRC),
2444 SND_PCI_QUIRK(0x1297, 0xa232, "Shuttle", VIA_DXS_SRC),
2445 SND_PCI_QUIRK(0x1297, 0xc160, "Shuttle Sk41G", VIA_DXS_SRC),
2446 SND_PCI_QUIRK(0x1458, 0xa002, "Gigabyte GA-7VAXP", VIA_DXS_ENABLE),
2447 SND_PCI_QUIRK(0x1462, 0x3800, "MSI KT266", VIA_DXS_ENABLE),
2448 SND_PCI_QUIRK(0x1462, 0x7120, "MSI KT4V", VIA_DXS_ENABLE),
2449 SND_PCI_QUIRK(0x1462, 0x7142, "MSI K8MM-V", VIA_DXS_ENABLE),
2450 SND_PCI_QUIRK_VENDOR(0x1462, "MSI Mobo", VIA_DXS_SRC),
2451 SND_PCI_QUIRK(0x147b, 0x1401, "ABIT KD7(-RAID)", VIA_DXS_ENABLE),
2452 SND_PCI_QUIRK(0x147b, 0x1411, "ABIT VA-20", VIA_DXS_ENABLE),
2453 SND_PCI_QUIRK(0x147b, 0x1413, "ABIT KV8 Pro", VIA_DXS_ENABLE),
2454 SND_PCI_QUIRK(0x147b, 0x1415, "ABIT AV8", VIA_DXS_NO_VRA),
2455 SND_PCI_QUIRK(0x14ff, 0x0403, "Twinhead mobo", VIA_DXS_ENABLE),
2456 SND_PCI_QUIRK(0x14ff, 0x0408, "Twinhead laptop", VIA_DXS_SRC),
2457 SND_PCI_QUIRK(0x1558, 0x4701, "Clevo D470", VIA_DXS_SRC),
2458 SND_PCI_QUIRK(0x1584, 0x8120, "Diverse Laptop", VIA_DXS_ENABLE),
2459 SND_PCI_QUIRK(0x1584, 0x8123, "Targa/Uniwill", VIA_DXS_NO_VRA),
2460 SND_PCI_QUIRK(0x161f, 0x202b, "Amira Notebook", VIA_DXS_NO_VRA),
2461 SND_PCI_QUIRK(0x161f, 0x2032, "m680x machines", VIA_DXS_48K),
2462 SND_PCI_QUIRK(0x1631, 0xe004, "PB EasyNote 3174", VIA_DXS_ENABLE),
2463 SND_PCI_QUIRK(0x1695, 0x3005, "EPoX EP-8K9A", VIA_DXS_ENABLE),
2464 SND_PCI_QUIRK_VENDOR(0x1695, "EPoX mobo", VIA_DXS_SRC),
2465 SND_PCI_QUIRK_VENDOR(0x16f3, "Jetway K8", VIA_DXS_SRC),
2466 SND_PCI_QUIRK_VENDOR(0x1734, "FSC Laptop", VIA_DXS_SRC),
2467 SND_PCI_QUIRK(0x1849, 0x3059, "ASRock K7VM2", VIA_DXS_NO_VRA),
2468 SND_PCI_QUIRK_VENDOR(0x1849, "ASRock mobo", VIA_DXS_SRC),
2469 SND_PCI_QUIRK(0x1919, 0x200a, "Soltek SL-K8", VIA_DXS_NO_VRA),
2470 SND_PCI_QUIRK(0x4005, 0x4710, "MSI K7T266", VIA_DXS_SRC),
2471 { } /* terminator */
2472 };
2473
2474 static int __devinit check_dxs_list(struct pci_dev *pci, int revision)
2475 {
2476 const struct snd_pci_quirk *w;
2477
2478 w = snd_pci_quirk_lookup(pci, dxs_whitelist);
2479 if (w) {
2480 snd_printdd(KERN_INFO "via82xx: DXS white list for %s found\n",
2481 w->name);
2482 return w->value;
2483 }
2484
2485 /* for newer revision, default to DXS_SRC */
2486 if (revision >= VIA_REV_8235)
2487 return VIA_DXS_SRC;
2488
2489 /*
2490 * not detected, try 48k rate only to be sure.
2491 */
2492 printk(KERN_INFO "via82xx: Assuming DXS channels with 48k fixed sample rate.\n");
2493 printk(KERN_INFO " Please try dxs_support=5 option\n");
2494 printk(KERN_INFO " and report if it works on your machine.\n");
2495 printk(KERN_INFO " For more details, read ALSA-Configuration.txt.\n");
2496 return VIA_DXS_48K;
2497 };
2498
2499 static int __devinit snd_via82xx_probe(struct pci_dev *pci,
2500 const struct pci_device_id *pci_id)
2501 {
2502 struct snd_card *card;
2503 struct via82xx *chip;
2504 int chip_type = 0, card_type;
2505 unsigned int i;
2506 int err;
2507
2508 err = snd_card_create(index, id, THIS_MODULE, 0, &card);
2509 if (err < 0)
2510 return err;
2511
2512 card_type = pci_id->driver_data;
2513 switch (card_type) {
2514 case TYPE_CARD_VIA686:
2515 strcpy(card->driver, "VIA686A");
2516 sprintf(card->shortname, "VIA 82C686A/B rev%x", pci->revision);
2517 chip_type = TYPE_VIA686;
2518 break;
2519 case TYPE_CARD_VIA8233:
2520 chip_type = TYPE_VIA8233;
2521 sprintf(card->shortname, "VIA 823x rev%x", pci->revision);
2522 for (i = 0; i < ARRAY_SIZE(via823x_cards); i++) {
2523 if (pci->revision == via823x_cards[i].revision) {
2524 chip_type = via823x_cards[i].type;
2525 strcpy(card->shortname, via823x_cards[i].name);
2526 break;
2527 }
2528 }
2529 if (chip_type != TYPE_VIA8233A) {
2530 if (dxs_support == VIA_DXS_AUTO)
2531 dxs_support = check_dxs_list(pci, pci->revision);
2532 /* force to use VIA8233 or 8233A model according to
2533 * dxs_support module option
2534 */
2535 if (dxs_support == VIA_DXS_DISABLE)
2536 chip_type = TYPE_VIA8233A;
2537 else
2538 chip_type = TYPE_VIA8233;
2539 }
2540 if (chip_type == TYPE_VIA8233A)
2541 strcpy(card->driver, "VIA8233A");
2542 else if (pci->revision >= VIA_REV_8237)
2543 strcpy(card->driver, "VIA8237"); /* no slog assignment */
2544 else
2545 strcpy(card->driver, "VIA8233");
2546 break;
2547 default:
2548 snd_printk(KERN_ERR "invalid card type %d\n", card_type);
2549 err = -EINVAL;
2550 goto __error;
2551 }
2552
2553 if ((err = snd_via82xx_create(card, pci, chip_type, pci->revision,
2554 ac97_clock, &chip)) < 0)
2555 goto __error;
2556 card->private_data = chip;
2557 if ((err = snd_via82xx_mixer_new(chip, ac97_quirk)) < 0)
2558 goto __error;
2559
2560 if (chip_type == TYPE_VIA686) {
2561 if ((err = snd_via686_pcm_new(chip)) < 0 ||
2562 (err = snd_via686_init_misc(chip)) < 0)
2563 goto __error;
2564 } else {
2565 if (chip_type == TYPE_VIA8233A) {
2566 if ((err = snd_via8233a_pcm_new(chip)) < 0)
2567 goto __error;
2568 // chip->dxs_fixed = 1; /* FIXME: use 48k for DXS #3? */
2569 } else {
2570 if ((err = snd_via8233_pcm_new(chip)) < 0)
2571 goto __error;
2572 if (dxs_support == VIA_DXS_48K)
2573 chip->dxs_fixed = 1;
2574 else if (dxs_support == VIA_DXS_NO_VRA)
2575 chip->no_vra = 1;
2576 else if (dxs_support == VIA_DXS_SRC) {
2577 chip->no_vra = 1;
2578 chip->dxs_src = 1;
2579 }
2580 }
2581 if ((err = snd_via8233_init_misc(chip)) < 0)
2582 goto __error;
2583 }
2584
2585 /* disable interrupts */
2586 for (i = 0; i < chip->num_devs; i++)
2587 snd_via82xx_channel_reset(chip, &chip->devs[i]);
2588
2589 snprintf(card->longname, sizeof(card->longname),
2590 "%s with %s at %#lx, irq %d", card->shortname,
2591 snd_ac97_get_short_name(chip->ac97), chip->port, chip->irq);
2592
2593 snd_via82xx_proc_init(chip);
2594
2595 if ((err = snd_card_register(card)) < 0) {
2596 snd_card_free(card);
2597 return err;
2598 }
2599 pci_set_drvdata(pci, card);
2600 return 0;
2601
2602 __error:
2603 snd_card_free(card);
2604 return err;
2605 }
2606
2607 static void __devexit snd_via82xx_remove(struct pci_dev *pci)
2608 {
2609 snd_card_free(pci_get_drvdata(pci));
2610 pci_set_drvdata(pci, NULL);
2611 }
2612
2613 static struct pci_driver driver = {
2614 .name = "VIA 82xx Audio",
2615 .id_table = snd_via82xx_ids,
2616 .probe = snd_via82xx_probe,
2617 .remove = __devexit_p(snd_via82xx_remove),
2618 #ifdef CONFIG_PM
2619 .suspend = snd_via82xx_suspend,
2620 .resume = snd_via82xx_resume,
2621 #endif
2622 };
2623
2624 static int __init alsa_card_via82xx_init(void)
2625 {
2626 return pci_register_driver(&driver);
2627 }
2628
2629 static void __exit alsa_card_via82xx_exit(void)
2630 {
2631 pci_unregister_driver(&driver);
2632 }
2633
2634 module_init(alsa_card_via82xx_init)
2635 module_exit(alsa_card_via82xx_exit)
Linux 2.6 ibm-acpi/thinkpad-acpi driver git tree