?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
i386: voyager: use __maybe_unused
[linux-2.6/mini2440.git] / sound / pci / via82xx.c
bloba28992269f5e04bc993b7cbb25353dee7b0fc660
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@suse.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 <sound/driver.h>
50 #include <asm/io.h>
51 #include <linux/delay.h>
52 #include <linux/interrupt.h>
53 #include <linux/init.h>
54 #include <linux/pci.h>
55 #include <linux/slab.h>
56 #include <linux/gameport.h>
57 #include <linux/moduleparam.h>
58 #include <sound/core.h>
59 #include <sound/pcm.h>
60 #include <sound/pcm_params.h>
61 #include <sound/info.h>
62 #include <sound/tlv.h>
63 #include <sound/ac97_codec.h>
64 #include <sound/mpu401.h>
65 #include <sound/initval.h>
66
67 #if 0
68 #define POINTER_DEBUG
69 #endif
70
71 MODULE_AUTHOR("Jaroslav Kysela <perex@suse.cz>");
72 MODULE_DESCRIPTION("VIA VT82xx audio");
73 MODULE_LICENSE("GPL");
74 MODULE_SUPPORTED_DEVICE("{{VIA,VT82C686A/B/C,pci},{VIA,VT8233A/C,8235}}");
75
76 #if defined(CONFIG_GAMEPORT) || (defined(MODULE) && defined(CONFIG_GAMEPORT_MODULE))
77 #define SUPPORT_JOYSTICK 1
78 #endif
79
80 static int index = SNDRV_DEFAULT_IDX1; /* Index 0-MAX */
81 static char *id = SNDRV_DEFAULT_STR1; /* ID for this card */
82 static long mpu_port;
83 #ifdef SUPPORT_JOYSTICK
84 static int joystick;
85 #endif
86 static int ac97_clock = 48000;
87 static char *ac97_quirk;
88 static int dxs_support;
89
90 module_param(index, int, 0444);
91 MODULE_PARM_DESC(index, "Index value for VIA 82xx bridge.");
92 module_param(id, charp, 0444);
93 MODULE_PARM_DESC(id, "ID string for VIA 82xx bridge.");
94 module_param(mpu_port, long, 0444);
95 MODULE_PARM_DESC(mpu_port, "MPU-401 port. (VT82C686x only)");
96 #ifdef SUPPORT_JOYSTICK
97 module_param(joystick, bool, 0444);
98 MODULE_PARM_DESC(joystick, "Enable joystick. (VT82C686x only)");
99 #endif
100 module_param(ac97_clock, int, 0444);
101 MODULE_PARM_DESC(ac97_clock, "AC'97 codec clock (default 48000Hz).");
102 module_param(ac97_quirk, charp, 0444);
103 MODULE_PARM_DESC(ac97_quirk, "AC'97 workaround for strange hardware.");
104 module_param(dxs_support, int, 0444);
105 MODULE_PARM_DESC(dxs_support, "Support for DXS channels (0 = auto, 1 = enable, 2 = disable, 3 = 48k only, 4 = no VRA, 5 = enable any sample rate)");
106
107 /* just for backward compatibility */
108 static int enable;
109 module_param(enable, bool, 0444);
110
111
112 /* revision numbers for via686 */
113 #define VIA_REV_686_A 0x10
114 #define VIA_REV_686_B 0x11
115 #define VIA_REV_686_C 0x12
116 #define VIA_REV_686_D 0x13
117 #define VIA_REV_686_E 0x14
118 #define VIA_REV_686_H 0x20
119
120 /* revision numbers for via8233 */
121 #define VIA_REV_PRE_8233 0x10 /* not in market */
122 #define VIA_REV_8233C 0x20 /* 2 rec, 4 pb, 1 multi-pb */
123 #define VIA_REV_8233 0x30 /* 2 rec, 4 pb, 1 multi-pb, spdif */
124 #define VIA_REV_8233A 0x40 /* 1 rec, 1 multi-pb, spdf */
125 #define VIA_REV_8235 0x50 /* 2 rec, 4 pb, 1 multi-pb, spdif */
126 #define VIA_REV_8237 0x60
127 #define VIA_REV_8251 0x70
128
129 /*
130 * Direct registers
131 */
132
133 #define VIAREG(via, x) ((via)->port + VIA_REG_##x)
134 #define VIADEV_REG(viadev, x) ((viadev)->port + VIA_REG_##x)
135
136 /* common offsets */
137 #define VIA_REG_OFFSET_STATUS 0x00 /* byte - channel status */
138 #define VIA_REG_STAT_ACTIVE 0x80 /* RO */
139 #define VIA8233_SHADOW_STAT_ACTIVE 0x08 /* RO */
140 #define VIA_REG_STAT_PAUSED 0x40 /* RO */
141 #define VIA_REG_STAT_TRIGGER_QUEUED 0x08 /* RO */
142 #define VIA_REG_STAT_STOPPED 0x04 /* RWC */
143 #define VIA_REG_STAT_EOL 0x02 /* RWC */
144 #define VIA_REG_STAT_FLAG 0x01 /* RWC */
145 #define VIA_REG_OFFSET_CONTROL 0x01 /* byte - channel control */
146 #define VIA_REG_CTRL_START 0x80 /* WO */
147 #define VIA_REG_CTRL_TERMINATE 0x40 /* WO */
148 #define VIA_REG_CTRL_AUTOSTART 0x20
149 #define VIA_REG_CTRL_PAUSE 0x08 /* RW */
150 #define VIA_REG_CTRL_INT_STOP 0x04
151 #define VIA_REG_CTRL_INT_EOL 0x02
152 #define VIA_REG_CTRL_INT_FLAG 0x01
153 #define VIA_REG_CTRL_RESET 0x01 /* RW - probably reset? undocumented */
154 #define VIA_REG_CTRL_INT (VIA_REG_CTRL_INT_FLAG | VIA_REG_CTRL_INT_EOL | VIA_REG_CTRL_AUTOSTART)
155 #define VIA_REG_OFFSET_TYPE 0x02 /* byte - channel type (686 only) */
156 #define VIA_REG_TYPE_AUTOSTART 0x80 /* RW - autostart at EOL */
157 #define VIA_REG_TYPE_16BIT 0x20 /* RW */
158 #define VIA_REG_TYPE_STEREO 0x10 /* RW */
159 #define VIA_REG_TYPE_INT_LLINE 0x00
160 #define VIA_REG_TYPE_INT_LSAMPLE 0x04
161 #define VIA_REG_TYPE_INT_LESSONE 0x08
162 #define VIA_REG_TYPE_INT_MASK 0x0c
163 #define VIA_REG_TYPE_INT_EOL 0x02
164 #define VIA_REG_TYPE_INT_FLAG 0x01
165 #define VIA_REG_OFFSET_TABLE_PTR 0x04 /* dword - channel table pointer */
166 #define VIA_REG_OFFSET_CURR_PTR 0x04 /* dword - channel current pointer */
167 #define VIA_REG_OFFSET_STOP_IDX 0x08 /* dword - stop index, channel type, sample rate */
168 #define VIA8233_REG_TYPE_16BIT 0x00200000 /* RW */
169 #define VIA8233_REG_TYPE_STEREO 0x00100000 /* RW */
170 #define VIA_REG_OFFSET_CURR_COUNT 0x0c /* dword - channel current count (24 bit) */
171 #define VIA_REG_OFFSET_CURR_INDEX 0x0f /* byte - channel current index (for via8233 only) */
172
173 #define DEFINE_VIA_REGSET(name,val) \
174 enum {\
175 VIA_REG_##name##_STATUS = (val),\
176 VIA_REG_##name##_CONTROL = (val) + 0x01,\
177 VIA_REG_##name##_TYPE = (val) + 0x02,\
178 VIA_REG_##name##_TABLE_PTR = (val) + 0x04,\
179 VIA_REG_##name##_CURR_PTR = (val) + 0x04,\
180 VIA_REG_##name##_STOP_IDX = (val) + 0x08,\
181 VIA_REG_##name##_CURR_COUNT = (val) + 0x0c,\
182 }
183
184 /* playback block */
185 DEFINE_VIA_REGSET(PLAYBACK, 0x00);
186 DEFINE_VIA_REGSET(CAPTURE, 0x10);
187 DEFINE_VIA_REGSET(FM, 0x20);
188
189 /* AC'97 */
190 #define VIA_REG_AC97 0x80 /* dword */
191 #define VIA_REG_AC97_CODEC_ID_MASK (3<<30)
192 #define VIA_REG_AC97_CODEC_ID_SHIFT 30
193 #define VIA_REG_AC97_CODEC_ID_PRIMARY 0x00
194 #define VIA_REG_AC97_CODEC_ID_SECONDARY 0x01
195 #define VIA_REG_AC97_SECONDARY_VALID (1<<27)
196 #define VIA_REG_AC97_PRIMARY_VALID (1<<25)
197 #define VIA_REG_AC97_BUSY (1<<24)
198 #define VIA_REG_AC97_READ (1<<23)
199 #define VIA_REG_AC97_CMD_SHIFT 16
200 #define VIA_REG_AC97_CMD_MASK 0x7e
201 #define VIA_REG_AC97_DATA_SHIFT 0
202 #define VIA_REG_AC97_DATA_MASK 0xffff
203
204 #define VIA_REG_SGD_SHADOW 0x84 /* dword */
205 /* via686 */
206 #define VIA_REG_SGD_STAT_PB_FLAG (1<<0)
207 #define VIA_REG_SGD_STAT_CP_FLAG (1<<1)
208 #define VIA_REG_SGD_STAT_FM_FLAG (1<<2)
209 #define VIA_REG_SGD_STAT_PB_EOL (1<<4)
210 #define VIA_REG_SGD_STAT_CP_EOL (1<<5)
211 #define VIA_REG_SGD_STAT_FM_EOL (1<<6)
212 #define VIA_REG_SGD_STAT_PB_STOP (1<<8)
213 #define VIA_REG_SGD_STAT_CP_STOP (1<<9)
214 #define VIA_REG_SGD_STAT_FM_STOP (1<<10)
215 #define VIA_REG_SGD_STAT_PB_ACTIVE (1<<12)
216 #define VIA_REG_SGD_STAT_CP_ACTIVE (1<<13)
217 #define VIA_REG_SGD_STAT_FM_ACTIVE (1<<14)
218 /* via8233 */
219 #define VIA8233_REG_SGD_STAT_FLAG (1<<0)
220 #define VIA8233_REG_SGD_STAT_EOL (1<<1)
221 #define VIA8233_REG_SGD_STAT_STOP (1<<2)
222 #define VIA8233_REG_SGD_STAT_ACTIVE (1<<3)
223 #define VIA8233_INTR_MASK(chan) ((VIA8233_REG_SGD_STAT_FLAG|VIA8233_REG_SGD_STAT_EOL) << ((chan) * 4))
224 #define VIA8233_REG_SGD_CHAN_SDX 0
225 #define VIA8233_REG_SGD_CHAN_MULTI 4
226 #define VIA8233_REG_SGD_CHAN_REC 6
227 #define VIA8233_REG_SGD_CHAN_REC1 7
228
229 #define VIA_REG_GPI_STATUS 0x88
230 #define VIA_REG_GPI_INTR 0x8c
231
232 /* multi-channel and capture registers for via8233 */
233 DEFINE_VIA_REGSET(MULTPLAY, 0x40);
234 DEFINE_VIA_REGSET(CAPTURE_8233, 0x60);
235
236 /* via8233-specific registers */
237 #define VIA_REG_OFS_PLAYBACK_VOLUME_L 0x02 /* byte */
238 #define VIA_REG_OFS_PLAYBACK_VOLUME_R 0x03 /* byte */
239 #define VIA_REG_OFS_MULTPLAY_FORMAT 0x02 /* byte - format and channels */
240 #define VIA_REG_MULTPLAY_FMT_8BIT 0x00
241 #define VIA_REG_MULTPLAY_FMT_16BIT 0x80
242 #define VIA_REG_MULTPLAY_FMT_CH_MASK 0x70 /* # channels << 4 (valid = 1,2,4,6) */
243 #define VIA_REG_OFS_CAPTURE_FIFO 0x02 /* byte - bit 6 = fifo enable */
244 #define VIA_REG_CAPTURE_FIFO_ENABLE 0x40
245
246 #define VIA_DXS_MAX_VOLUME 31 /* max. volume (attenuation) of reg 0x32/33 */
247
248 #define VIA_REG_CAPTURE_CHANNEL 0x63 /* byte - input select */
249 #define VIA_REG_CAPTURE_CHANNEL_MIC 0x4
250 #define VIA_REG_CAPTURE_CHANNEL_LINE 0
251 #define VIA_REG_CAPTURE_SELECT_CODEC 0x03 /* recording source codec (0 = primary) */
252
253 #define VIA_TBL_BIT_FLAG 0x40000000
254 #define VIA_TBL_BIT_EOL 0x80000000
255
256 /* pci space */
257 #define VIA_ACLINK_STAT 0x40
258 #define VIA_ACLINK_C11_READY 0x20
259 #define VIA_ACLINK_C10_READY 0x10
260 #define VIA_ACLINK_C01_READY 0x04 /* secondary codec ready */
261 #define VIA_ACLINK_LOWPOWER 0x02 /* low-power state */
262 #define VIA_ACLINK_C00_READY 0x01 /* primary codec ready */
263 #define VIA_ACLINK_CTRL 0x41
264 #define VIA_ACLINK_CTRL_ENABLE 0x80 /* 0: disable, 1: enable */
265 #define VIA_ACLINK_CTRL_RESET 0x40 /* 0: assert, 1: de-assert */
266 #define VIA_ACLINK_CTRL_SYNC 0x20 /* 0: release SYNC, 1: force SYNC hi */
267 #define VIA_ACLINK_CTRL_SDO 0x10 /* 0: release SDO, 1: force SDO hi */
268 #define VIA_ACLINK_CTRL_VRA 0x08 /* 0: disable VRA, 1: enable VRA */
269 #define VIA_ACLINK_CTRL_PCM 0x04 /* 0: disable PCM, 1: enable PCM */
270 #define VIA_ACLINK_CTRL_FM 0x02 /* via686 only */
271 #define VIA_ACLINK_CTRL_SB 0x01 /* via686 only */
272 #define VIA_ACLINK_CTRL_INIT (VIA_ACLINK_CTRL_ENABLE|\
273 VIA_ACLINK_CTRL_RESET|\
274 VIA_ACLINK_CTRL_PCM|\
275 VIA_ACLINK_CTRL_VRA)
276 #define VIA_FUNC_ENABLE 0x42
277 #define VIA_FUNC_MIDI_PNP 0x80 /* FIXME: it's 0x40 in the datasheet! */
278 #define VIA_FUNC_MIDI_IRQMASK 0x40 /* FIXME: not documented! */
279 #define VIA_FUNC_RX2C_WRITE 0x20
280 #define VIA_FUNC_SB_FIFO_EMPTY 0x10
281 #define VIA_FUNC_ENABLE_GAME 0x08
282 #define VIA_FUNC_ENABLE_FM 0x04
283 #define VIA_FUNC_ENABLE_MIDI 0x02
284 #define VIA_FUNC_ENABLE_SB 0x01
285 #define VIA_PNP_CONTROL 0x43
286 #define VIA_FM_NMI_CTRL 0x48
287 #define VIA8233_VOLCHG_CTRL 0x48
288 #define VIA8233_SPDIF_CTRL 0x49
289 #define VIA8233_SPDIF_DX3 0x08
290 #define VIA8233_SPDIF_SLOT_MASK 0x03
291 #define VIA8233_SPDIF_SLOT_1011 0x00
292 #define VIA8233_SPDIF_SLOT_34 0x01
293 #define VIA8233_SPDIF_SLOT_78 0x02
294 #define VIA8233_SPDIF_SLOT_69 0x03
295
296 /*
297 */
298
299 #define VIA_DXS_AUTO 0
300 #define VIA_DXS_ENABLE 1
301 #define VIA_DXS_DISABLE 2
302 #define VIA_DXS_48K 3
303 #define VIA_DXS_NO_VRA 4
304 #define VIA_DXS_SRC 5
305
306
307 /*
308 * pcm stream
309 */
310
311 struct snd_via_sg_table {
312 unsigned int offset;
313 unsigned int size;
314 } ;
315
316 #define VIA_TABLE_SIZE 255
317
318 struct viadev {
319 unsigned int reg_offset;
320 unsigned long port;
321 int direction; /* playback = 0, capture = 1 */
322 struct snd_pcm_substream *substream;
323 int running;
324 unsigned int tbl_entries; /* # descriptors */
325 struct snd_dma_buffer table;
326 struct snd_via_sg_table *idx_table;
327 /* for recovery from the unexpected pointer */
328 unsigned int lastpos;
329 unsigned int fragsize;
330 unsigned int bufsize;
331 unsigned int bufsize2;
332 int hwptr_done; /* processed frame position in the buffer */
333 int in_interrupt;
334 int shadow_shift;
335 };
336
337
338 enum { TYPE_CARD_VIA686 = 1, TYPE_CARD_VIA8233 };
339 enum { TYPE_VIA686, TYPE_VIA8233, TYPE_VIA8233A };
340
341 #define VIA_MAX_DEVS 7 /* 4 playback, 1 multi, 2 capture */
342
343 struct via_rate_lock {
344 spinlock_t lock;
345 int rate;
346 int used;
347 };
348
349 struct via82xx {
350 int irq;
351
352 unsigned long port;
353 struct resource *mpu_res;
354 int chip_type;
355 unsigned char revision;
356
357 unsigned char old_legacy;
358 unsigned char old_legacy_cfg;
359 #ifdef CONFIG_PM
360 unsigned char legacy_saved;
361 unsigned char legacy_cfg_saved;
362 unsigned char spdif_ctrl_saved;
363 unsigned char capture_src_saved[2];
364 unsigned int mpu_port_saved;
365 #endif
366
367 unsigned char playback_volume[4][2]; /* for VIA8233/C/8235; default = 0 */
368 unsigned char playback_volume_c[2]; /* for VIA8233/C/8235; default = 0 */
369
370 unsigned int intr_mask; /* SGD_SHADOW mask to check interrupts */
371
372 struct pci_dev *pci;
373 struct snd_card *card;
374
375 unsigned int num_devs;
376 unsigned int playback_devno, multi_devno, capture_devno;
377 struct viadev devs[VIA_MAX_DEVS];
378 struct via_rate_lock rates[2]; /* playback and capture */
379 unsigned int dxs_fixed: 1; /* DXS channel accepts only 48kHz */
380 unsigned int no_vra: 1; /* no need to set VRA on DXS channels */
381 unsigned int dxs_src: 1; /* use full SRC capabilities of DXS */
382 unsigned int spdif_on: 1; /* only spdif rates work to external DACs */
383
384 struct snd_pcm *pcms[2];
385 struct snd_rawmidi *rmidi;
386
387 struct snd_ac97_bus *ac97_bus;
388 struct snd_ac97 *ac97;
389 unsigned int ac97_clock;
390 unsigned int ac97_secondary; /* secondary AC'97 codec is present */
391
392 spinlock_t reg_lock;
393 struct snd_info_entry *proc_entry;
394
395 #ifdef SUPPORT_JOYSTICK
396 struct gameport *gameport;
397 #endif
398 };
399
400 static struct pci_device_id snd_via82xx_ids[] = {
401 /* 0x1106, 0x3058 */
402 { PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686_5, PCI_ANY_ID, PCI_ANY_ID, 0, 0, TYPE_CARD_VIA686, }, /* 686A */
403 /* 0x1106, 0x3059 */
404 { PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8233_5, PCI_ANY_ID, PCI_ANY_ID, 0, 0, TYPE_CARD_VIA8233, }, /* VT8233 */
405 { 0, }
406 };
407
408 MODULE_DEVICE_TABLE(pci, snd_via82xx_ids);
409
410 /*
411 */
412
413 /*
414 * allocate and initialize the descriptor buffers
415 * periods = number of periods
416 * fragsize = period size in bytes
417 */
418 static int build_via_table(struct viadev *dev, struct snd_pcm_substream *substream,
419 struct pci_dev *pci,
420 unsigned int periods, unsigned int fragsize)
421 {
422 unsigned int i, idx, ofs, rest;
423 struct via82xx *chip = snd_pcm_substream_chip(substream);
424 struct snd_sg_buf *sgbuf = snd_pcm_substream_sgbuf(substream);
425
426 if (dev->table.area == NULL) {
427 /* the start of each lists must be aligned to 8 bytes,
428 * but the kernel pages are much bigger, so we don't care
429 */
430 if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(chip->pci),
431 PAGE_ALIGN(VIA_TABLE_SIZE * 2 * 8),
432 &dev->table) < 0)
433 return -ENOMEM;
434 }
435 if (! dev->idx_table) {
436 dev->idx_table = kmalloc(sizeof(*dev->idx_table) * VIA_TABLE_SIZE, GFP_KERNEL);
437 if (! dev->idx_table)
438 return -ENOMEM;
439 }
440
441 /* fill the entries */
442 idx = 0;
443 ofs = 0;
444 for (i = 0; i < periods; i++) {
445 rest = fragsize;
446 /* fill descriptors for a period.
447 * a period can be split to several descriptors if it's
448 * over page boundary.
449 */
450 do {
451 unsigned int r;
452 unsigned int flag;
453
454 if (idx >= VIA_TABLE_SIZE) {
455 snd_printk(KERN_ERR "via82xx: too much table size!\n");
456 return -EINVAL;
457 }
458 ((u32 *)dev->table.area)[idx << 1] = cpu_to_le32((u32)snd_pcm_sgbuf_get_addr(sgbuf, ofs));
459 r = PAGE_SIZE - (ofs % PAGE_SIZE);
460 if (rest < r)
461 r = rest;
462 rest -= r;
463 if (! rest) {
464 if (i == periods - 1)
465 flag = VIA_TBL_BIT_EOL; /* buffer boundary */
466 else
467 flag = VIA_TBL_BIT_FLAG; /* period boundary */
468 } else
469 flag = 0; /* period continues to the next */
470 // printk("via: tbl %d: at %d size %d (rest %d)\n", idx, ofs, r, rest);
471 ((u32 *)dev->table.area)[(idx<<1) + 1] = cpu_to_le32(r | flag);
472 dev->idx_table[idx].offset = ofs;
473 dev->idx_table[idx].size = r;
474 ofs += r;
475 idx++;
476 } while (rest > 0);
477 }
478 dev->tbl_entries = idx;
479 dev->bufsize = periods * fragsize;
480 dev->bufsize2 = dev->bufsize / 2;
481 dev->fragsize = fragsize;
482 return 0;
483 }
484
485
486 static int clean_via_table(struct viadev *dev, struct snd_pcm_substream *substream,
487 struct pci_dev *pci)
488 {
489 if (dev->table.area) {
490 snd_dma_free_pages(&dev->table);
491 dev->table.area = NULL;
492 }
493 kfree(dev->idx_table);
494 dev->idx_table = NULL;
495 return 0;
496 }
497
498 /*
499 * Basic I/O
500 */
501
502 static inline unsigned int snd_via82xx_codec_xread(struct via82xx *chip)
503 {
504 return inl(VIAREG(chip, AC97));
505 }
506
507 static inline void snd_via82xx_codec_xwrite(struct via82xx *chip, unsigned int val)
508 {
509 outl(val, VIAREG(chip, AC97));
510 }
511
512 static int snd_via82xx_codec_ready(struct via82xx *chip, int secondary)
513 {
514 unsigned int timeout = 1000; /* 1ms */
515 unsigned int val;
516
517 while (timeout-- > 0) {
518 udelay(1);
519 if (!((val = snd_via82xx_codec_xread(chip)) & VIA_REG_AC97_BUSY))
520 return val & 0xffff;
521 }
522 snd_printk(KERN_ERR "codec_ready: codec %i is not ready [0x%x]\n",
523 secondary, snd_via82xx_codec_xread(chip));
524 return -EIO;
525 }
526
527 static int snd_via82xx_codec_valid(struct via82xx *chip, int secondary)
528 {
529 unsigned int timeout = 1000; /* 1ms */
530 unsigned int val, val1;
531 unsigned int stat = !secondary ? VIA_REG_AC97_PRIMARY_VALID :
532 VIA_REG_AC97_SECONDARY_VALID;
533
534 while (timeout-- > 0) {
535 val = snd_via82xx_codec_xread(chip);
536 val1 = val & (VIA_REG_AC97_BUSY | stat);
537 if (val1 == stat)
538 return val & 0xffff;
539 udelay(1);
540 }
541 return -EIO;
542 }
543
544 static void snd_via82xx_codec_wait(struct snd_ac97 *ac97)
545 {
546 struct via82xx *chip = ac97->private_data;
547 int err;
548 err = snd_via82xx_codec_ready(chip, ac97->num);
549 /* here we need to wait fairly for long time.. */
550 msleep(500);
551 }
552
553 static void snd_via82xx_codec_write(struct snd_ac97 *ac97,
554 unsigned short reg,
555 unsigned short val)
556 {
557 struct via82xx *chip = ac97->private_data;
558 unsigned int xval;
559
560 xval = !ac97->num ? VIA_REG_AC97_CODEC_ID_PRIMARY : VIA_REG_AC97_CODEC_ID_SECONDARY;
561 xval <<= VIA_REG_AC97_CODEC_ID_SHIFT;
562 xval |= reg << VIA_REG_AC97_CMD_SHIFT;
563 xval |= val << VIA_REG_AC97_DATA_SHIFT;
564 snd_via82xx_codec_xwrite(chip, xval);
565 snd_via82xx_codec_ready(chip, ac97->num);
566 }
567
568 static unsigned short snd_via82xx_codec_read(struct snd_ac97 *ac97, unsigned short reg)
569 {
570 struct via82xx *chip = ac97->private_data;
571 unsigned int xval, val = 0xffff;
572 int again = 0;
573
574 xval = ac97->num << VIA_REG_AC97_CODEC_ID_SHIFT;
575 xval |= ac97->num ? VIA_REG_AC97_SECONDARY_VALID : VIA_REG_AC97_PRIMARY_VALID;
576 xval |= VIA_REG_AC97_READ;
577 xval |= (reg & 0x7f) << VIA_REG_AC97_CMD_SHIFT;
578 while (1) {
579 if (again++ > 3) {
580 snd_printk(KERN_ERR "codec_read: codec %i is not valid [0x%x]\n",
581 ac97->num, snd_via82xx_codec_xread(chip));
582 return 0xffff;
583 }
584 snd_via82xx_codec_xwrite(chip, xval);
585 udelay (20);
586 if (snd_via82xx_codec_valid(chip, ac97->num) >= 0) {
587 udelay(25);
588 val = snd_via82xx_codec_xread(chip);
589 break;
590 }
591 }
592 return val & 0xffff;
593 }
594
595 static void snd_via82xx_channel_reset(struct via82xx *chip, struct viadev *viadev)
596 {
597 outb(VIA_REG_CTRL_PAUSE | VIA_REG_CTRL_TERMINATE | VIA_REG_CTRL_RESET,
598 VIADEV_REG(viadev, OFFSET_CONTROL));
599 inb(VIADEV_REG(viadev, OFFSET_CONTROL));
600 udelay(50);
601 /* disable interrupts */
602 outb(0x00, VIADEV_REG(viadev, OFFSET_CONTROL));
603 /* clear interrupts */
604 outb(0x03, VIADEV_REG(viadev, OFFSET_STATUS));
605 outb(0x00, VIADEV_REG(viadev, OFFSET_TYPE)); /* for via686 */
606 // outl(0, VIADEV_REG(viadev, OFFSET_CURR_PTR));
607 viadev->lastpos = 0;
608 viadev->hwptr_done = 0;
609 }
610
611
612 /*
613 * Interrupt handler
614 * Used for 686 and 8233A
615 */
616 static irqreturn_t snd_via686_interrupt(int irq, void *dev_id)
617 {
618 struct via82xx *chip = dev_id;
619 unsigned int status;
620 unsigned int i;
621
622 status = inl(VIAREG(chip, SGD_SHADOW));
623 if (! (status & chip->intr_mask)) {
624 if (chip->rmidi)
625 /* check mpu401 interrupt */
626 return snd_mpu401_uart_interrupt(irq, chip->rmidi->private_data);
627 return IRQ_NONE;
628 }
629
630 /* check status for each stream */
631 spin_lock(&chip->reg_lock);
632 for (i = 0; i < chip->num_devs; i++) {
633 struct viadev *viadev = &chip->devs[i];
634 unsigned char c_status = inb(VIADEV_REG(viadev, OFFSET_STATUS));
635 if (! (c_status & (VIA_REG_STAT_EOL|VIA_REG_STAT_FLAG|VIA_REG_STAT_STOPPED)))
636 continue;
637 if (viadev->substream && viadev->running) {
638 /*
639 * Update hwptr_done based on 'period elapsed'
640 * interrupts. We'll use it, when the chip returns 0
641 * for OFFSET_CURR_COUNT.
642 */
643 if (c_status & VIA_REG_STAT_EOL)
644 viadev->hwptr_done = 0;
645 else
646 viadev->hwptr_done += viadev->fragsize;
647 viadev->in_interrupt = c_status;
648 spin_unlock(&chip->reg_lock);
649 snd_pcm_period_elapsed(viadev->substream);
650 spin_lock(&chip->reg_lock);
651 viadev->in_interrupt = 0;
652 }
653 outb(c_status, VIADEV_REG(viadev, OFFSET_STATUS)); /* ack */
654 }
655 spin_unlock(&chip->reg_lock);
656 return IRQ_HANDLED;
657 }
658
659 /*
660 * Interrupt handler
661 */
662 static irqreturn_t snd_via8233_interrupt(int irq, void *dev_id)
663 {
664 struct via82xx *chip = dev_id;
665 unsigned int status;
666 unsigned int i;
667 int irqreturn = 0;
668
669 /* check status for each stream */
670 spin_lock(&chip->reg_lock);
671 status = inl(VIAREG(chip, SGD_SHADOW));
672
673 for (i = 0; i < chip->num_devs; i++) {
674 struct viadev *viadev = &chip->devs[i];
675 struct snd_pcm_substream *substream;
676 unsigned char c_status, shadow_status;
677
678 shadow_status = (status >> viadev->shadow_shift) &
679 (VIA8233_SHADOW_STAT_ACTIVE|VIA_REG_STAT_EOL|
680 VIA_REG_STAT_FLAG);
681 c_status = shadow_status & (VIA_REG_STAT_EOL|VIA_REG_STAT_FLAG);
682 if (!c_status)
683 continue;
684
685 substream = viadev->substream;
686 if (substream && viadev->running) {
687 /*
688 * Update hwptr_done based on 'period elapsed'
689 * interrupts. We'll use it, when the chip returns 0
690 * for OFFSET_CURR_COUNT.
691 */
692 if (c_status & VIA_REG_STAT_EOL)
693 viadev->hwptr_done = 0;
694 else
695 viadev->hwptr_done += viadev->fragsize;
696 viadev->in_interrupt = c_status;
697 if (shadow_status & VIA8233_SHADOW_STAT_ACTIVE)
698 viadev->in_interrupt |= VIA_REG_STAT_ACTIVE;
699 spin_unlock(&chip->reg_lock);
700
701 snd_pcm_period_elapsed(substream);
702
703 spin_lock(&chip->reg_lock);
704 viadev->in_interrupt = 0;
705 }
706 outb(c_status, VIADEV_REG(viadev, OFFSET_STATUS)); /* ack */
707 irqreturn = 1;
708 }
709 spin_unlock(&chip->reg_lock);
710 return IRQ_RETVAL(irqreturn);
711 }
712
713 /*
714 * PCM callbacks
715 */
716
717 /*
718 * trigger callback
719 */
720 static int snd_via82xx_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
721 {
722 struct via82xx *chip = snd_pcm_substream_chip(substream);
723 struct viadev *viadev = substream->runtime->private_data;
724 unsigned char val;
725
726 if (chip->chip_type != TYPE_VIA686)
727 val = VIA_REG_CTRL_INT;
728 else
729 val = 0;
730 switch (cmd) {
731 case SNDRV_PCM_TRIGGER_START:
732 case SNDRV_PCM_TRIGGER_RESUME:
733 val |= VIA_REG_CTRL_START;
734 viadev->running = 1;
735 break;
736 case SNDRV_PCM_TRIGGER_STOP:
737 case SNDRV_PCM_TRIGGER_SUSPEND:
738 val = VIA_REG_CTRL_TERMINATE;
739 viadev->running = 0;
740 break;
741 case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
742 val |= VIA_REG_CTRL_PAUSE;
743 viadev->running = 0;
744 break;
745 case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
746 viadev->running = 1;
747 break;
748 default:
749 return -EINVAL;
750 }
751 outb(val, VIADEV_REG(viadev, OFFSET_CONTROL));
752 if (cmd == SNDRV_PCM_TRIGGER_STOP)
753 snd_via82xx_channel_reset(chip, viadev);
754 return 0;
755 }
756
757
758 /*
759 * pointer callbacks
760 */
761
762 /*
763 * calculate the linear position at the given sg-buffer index and the rest count
764 */
765
766 #define check_invalid_pos(viadev,pos) \
767 ((pos) < viadev->lastpos && ((pos) >= viadev->bufsize2 ||\
768 viadev->lastpos < viadev->bufsize2))
769
770 static inline unsigned int calc_linear_pos(struct viadev *viadev, unsigned int idx,
771 unsigned int count)
772 {
773 unsigned int size, base, res;
774
775 size = viadev->idx_table[idx].size;
776 base = viadev->idx_table[idx].offset;
777 res = base + size - count;
778 if (res >= viadev->bufsize)
779 res -= viadev->bufsize;
780
781 /* check the validity of the calculated position */
782 if (size < count) {
783 snd_printd(KERN_ERR "invalid via82xx_cur_ptr (size = %d, count = %d)\n",
784 (int)size, (int)count);
785 res = viadev->lastpos;
786 } else {
787 if (! count) {
788 /* Some mobos report count = 0 on the DMA boundary,
789 * i.e. count = size indeed.
790 * Let's check whether this step is above the expected size.
791 */
792 int delta = res - viadev->lastpos;
793 if (delta < 0)
794 delta += viadev->bufsize;
795 if ((unsigned int)delta > viadev->fragsize)
796 res = base;
797 }
798 if (check_invalid_pos(viadev, res)) {
799 #ifdef POINTER_DEBUG
800 printk(KERN_DEBUG "fail: idx = %i/%i, lastpos = 0x%x, "
801 "bufsize2 = 0x%x, offsize = 0x%x, size = 0x%x, "
802 "count = 0x%x\n", idx, viadev->tbl_entries,
803 viadev->lastpos, viadev->bufsize2,
804 viadev->idx_table[idx].offset,
805 viadev->idx_table[idx].size, count);
806 #endif
807 /* count register returns full size when end of buffer is reached */
808 res = base + size;
809 if (check_invalid_pos(viadev, res)) {
810 snd_printd(KERN_ERR "invalid via82xx_cur_ptr (2), "
811 "using last valid pointer\n");
812 res = viadev->lastpos;
813 }
814 }
815 }
816 return res;
817 }
818
819 /*
820 * get the current pointer on via686
821 */
822 static snd_pcm_uframes_t snd_via686_pcm_pointer(struct snd_pcm_substream *substream)
823 {
824 struct via82xx *chip = snd_pcm_substream_chip(substream);
825 struct viadev *viadev = substream->runtime->private_data;
826 unsigned int idx, ptr, count, res;
827
828 snd_assert(viadev->tbl_entries, return 0);
829 if (!(inb(VIADEV_REG(viadev, OFFSET_STATUS)) & VIA_REG_STAT_ACTIVE))
830 return 0;
831
832 spin_lock(&chip->reg_lock);
833 count = inl(VIADEV_REG(viadev, OFFSET_CURR_COUNT)) & 0xffffff;
834 /* The via686a does not have the current index register,
835 * so we need to calculate the index from CURR_PTR.
836 */
837 ptr = inl(VIADEV_REG(viadev, OFFSET_CURR_PTR));
838 if (ptr <= (unsigned int)viadev->table.addr)
839 idx = 0;
840 else /* CURR_PTR holds the address + 8 */
841 idx = ((ptr - (unsigned int)viadev->table.addr) / 8 - 1) % viadev->tbl_entries;
842 res = calc_linear_pos(viadev, idx, count);
843 viadev->lastpos = res; /* remember the last position */
844 spin_unlock(&chip->reg_lock);
845
846 return bytes_to_frames(substream->runtime, res);
847 }
848
849 /*
850 * get the current pointer on via823x
851 */
852 static snd_pcm_uframes_t snd_via8233_pcm_pointer(struct snd_pcm_substream *substream)
853 {
854 struct via82xx *chip = snd_pcm_substream_chip(substream);
855 struct viadev *viadev = substream->runtime->private_data;
856 unsigned int idx, count, res;
857 int status;
858
859 snd_assert(viadev->tbl_entries, return 0);
860
861 spin_lock(&chip->reg_lock);
862 count = inl(VIADEV_REG(viadev, OFFSET_CURR_COUNT));
863 status = viadev->in_interrupt;
864 if (!status)
865 status = inb(VIADEV_REG(viadev, OFFSET_STATUS));
866
867 /* An apparent bug in the 8251 is worked around by sending a
868 * REG_CTRL_START. */
869 if (chip->revision == VIA_REV_8251 && (status & VIA_REG_STAT_EOL))
870 snd_via82xx_pcm_trigger(substream, SNDRV_PCM_TRIGGER_START);
871
872 if (!(status & VIA_REG_STAT_ACTIVE)) {
873 res = 0;
874 goto unlock;
875 }
876 if (count & 0xffffff) {
877 idx = count >> 24;
878 if (idx >= viadev->tbl_entries) {
879 #ifdef POINTER_DEBUG
880 printk(KERN_DEBUG "fail: invalid idx = %i/%i\n", idx,
881 viadev->tbl_entries);
882 #endif
883 res = viadev->lastpos;
884 } else {
885 count &= 0xffffff;
886 res = calc_linear_pos(viadev, idx, count);
887 }
888 } else {
889 res = viadev->hwptr_done;
890 if (!viadev->in_interrupt) {
891 if (status & VIA_REG_STAT_EOL) {
892 res = 0;
893 } else
894 if (status & VIA_REG_STAT_FLAG) {
895 res += viadev->fragsize;
896 }
897 }
898 }
899 unlock:
900 viadev->lastpos = res;
901 spin_unlock(&chip->reg_lock);
902
903 return bytes_to_frames(substream->runtime, res);
904 }
905
906
907 /*
908 * hw_params callback:
909 * allocate the buffer and build up the buffer description table
910 */
911 static int snd_via82xx_hw_params(struct snd_pcm_substream *substream,
912 struct snd_pcm_hw_params *hw_params)
913 {
914 struct via82xx *chip = snd_pcm_substream_chip(substream);
915 struct viadev *viadev = substream->runtime->private_data;
916 int err;
917
918 err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
919 if (err < 0)
920 return err;
921 err = build_via_table(viadev, substream, chip->pci,
922 params_periods(hw_params),
923 params_period_bytes(hw_params));
924 if (err < 0)
925 return err;
926
927 return 0;
928 }
929
930 /*
931 * hw_free callback:
932 * clean up the buffer description table and release the buffer
933 */
934 static int snd_via82xx_hw_free(struct snd_pcm_substream *substream)
935 {
936 struct via82xx *chip = snd_pcm_substream_chip(substream);
937 struct viadev *viadev = substream->runtime->private_data;
938
939 clean_via_table(viadev, substream, chip->pci);
940 snd_pcm_lib_free_pages(substream);
941 return 0;
942 }
943
944
945 /*
946 * set up the table pointer
947 */
948 static void snd_via82xx_set_table_ptr(struct via82xx *chip, struct viadev *viadev)
949 {
950 snd_via82xx_codec_ready(chip, 0);
951 outl((u32)viadev->table.addr, VIADEV_REG(viadev, OFFSET_TABLE_PTR));
952 udelay(20);
953 snd_via82xx_codec_ready(chip, 0);
954 }
955
956 /*
957 * prepare callback for playback and capture on via686
958 */
959 static void via686_setup_format(struct via82xx *chip, struct viadev *viadev,
960 struct snd_pcm_runtime *runtime)
961 {
962 snd_via82xx_channel_reset(chip, viadev);
963 /* this must be set after channel_reset */
964 snd_via82xx_set_table_ptr(chip, viadev);
965 outb(VIA_REG_TYPE_AUTOSTART |
966 (runtime->format == SNDRV_PCM_FORMAT_S16_LE ? VIA_REG_TYPE_16BIT : 0) |
967 (runtime->channels > 1 ? VIA_REG_TYPE_STEREO : 0) |
968 ((viadev->reg_offset & 0x10) == 0 ? VIA_REG_TYPE_INT_LSAMPLE : 0) |
969 VIA_REG_TYPE_INT_EOL |
970 VIA_REG_TYPE_INT_FLAG, VIADEV_REG(viadev, OFFSET_TYPE));
971 }
972
973 static int snd_via686_playback_prepare(struct snd_pcm_substream *substream)
974 {
975 struct via82xx *chip = snd_pcm_substream_chip(substream);
976 struct viadev *viadev = substream->runtime->private_data;
977 struct snd_pcm_runtime *runtime = substream->runtime;
978
979 snd_ac97_set_rate(chip->ac97, AC97_PCM_FRONT_DAC_RATE, runtime->rate);
980 snd_ac97_set_rate(chip->ac97, AC97_SPDIF, runtime->rate);
981 via686_setup_format(chip, viadev, runtime);
982 return 0;
983 }
984
985 static int snd_via686_capture_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_LR_ADC_RATE, runtime->rate);
992 via686_setup_format(chip, viadev, runtime);
993 return 0;
994 }
995
996 /*
997 * lock the current rate
998 */
999 static int via_lock_rate(struct via_rate_lock *rec, int rate)
1000 {
1001 int changed = 0;
1002
1003 spin_lock_irq(&rec->lock);
1004 if (rec->rate != rate) {
1005 if (rec->rate && rec->used > 1) /* already set */
1006 changed = -EINVAL;
1007 else {
1008 rec->rate = rate;
1009 changed = 1;
1010 }
1011 }
1012 spin_unlock_irq(&rec->lock);
1013 return changed;
1014 }
1015
1016 /*
1017 * prepare callback for DSX playback on via823x
1018 */
1019 static int snd_via8233_playback_prepare(struct snd_pcm_substream *substream)
1020 {
1021 struct via82xx *chip = snd_pcm_substream_chip(substream);
1022 struct viadev *viadev = substream->runtime->private_data;
1023 struct snd_pcm_runtime *runtime = substream->runtime;
1024 int ac97_rate = chip->dxs_src ? 48000 : runtime->rate;
1025 int rate_changed;
1026 u32 rbits;
1027
1028 if ((rate_changed = via_lock_rate(&chip->rates[0], ac97_rate)) < 0)
1029 return rate_changed;
1030 if (rate_changed)
1031 snd_ac97_set_rate(chip->ac97, AC97_PCM_FRONT_DAC_RATE,
1032 chip->no_vra ? 48000 : runtime->rate);
1033 if (chip->spdif_on && viadev->reg_offset == 0x30)
1034 snd_ac97_set_rate(chip->ac97, AC97_SPDIF, runtime->rate);
1035
1036 if (runtime->rate == 48000)
1037 rbits = 0xfffff;
1038 else
1039 rbits = (0x100000 / 48000) * runtime->rate +
1040 ((0x100000 % 48000) * runtime->rate) / 48000;
1041 snd_assert((rbits & ~0xfffff) == 0, return -EINVAL);
1042 snd_via82xx_channel_reset(chip, viadev);
1043 snd_via82xx_set_table_ptr(chip, viadev);
1044 outb(chip->playback_volume[viadev->reg_offset / 0x10][0],
1045 VIADEV_REG(viadev, OFS_PLAYBACK_VOLUME_L));
1046 outb(chip->playback_volume[viadev->reg_offset / 0x10][1],
1047 VIADEV_REG(viadev, OFS_PLAYBACK_VOLUME_R));
1048 outl((runtime->format == SNDRV_PCM_FORMAT_S16_LE ? VIA8233_REG_TYPE_16BIT : 0) | /* format */
1049 (runtime->channels > 1 ? VIA8233_REG_TYPE_STEREO : 0) | /* stereo */
1050 rbits | /* rate */
1051 0xff000000, /* STOP index is never reached */
1052 VIADEV_REG(viadev, OFFSET_STOP_IDX));
1053 udelay(20);
1054 snd_via82xx_codec_ready(chip, 0);
1055 return 0;
1056 }
1057
1058 /*
1059 * prepare callback for multi-channel playback on via823x
1060 */
1061 static int snd_via8233_multi_prepare(struct snd_pcm_substream *substream)
1062 {
1063 struct via82xx *chip = snd_pcm_substream_chip(substream);
1064 struct viadev *viadev = substream->runtime->private_data;
1065 struct snd_pcm_runtime *runtime = substream->runtime;
1066 unsigned int slots;
1067 int fmt;
1068
1069 if (via_lock_rate(&chip->rates[0], runtime->rate) < 0)
1070 return -EINVAL;
1071 snd_ac97_set_rate(chip->ac97, AC97_PCM_FRONT_DAC_RATE, runtime->rate);
1072 snd_ac97_set_rate(chip->ac97, AC97_PCM_SURR_DAC_RATE, runtime->rate);
1073 snd_ac97_set_rate(chip->ac97, AC97_PCM_LFE_DAC_RATE, runtime->rate);
1074 snd_ac97_set_rate(chip->ac97, AC97_SPDIF, runtime->rate);
1075 snd_via82xx_channel_reset(chip, viadev);
1076 snd_via82xx_set_table_ptr(chip, viadev);
1077
1078 fmt = (runtime->format == SNDRV_PCM_FORMAT_S16_LE) ?
1079 VIA_REG_MULTPLAY_FMT_16BIT : VIA_REG_MULTPLAY_FMT_8BIT;
1080 fmt |= runtime->channels << 4;
1081 outb(fmt, VIADEV_REG(viadev, OFS_MULTPLAY_FORMAT));
1082 #if 0
1083 if (chip->revision == VIA_REV_8233A)
1084 slots = 0;
1085 else
1086 #endif
1087 {
1088 /* set sample number to slot 3, 4, 7, 8, 6, 9 (for VIA8233/C,8235) */
1089 /* corresponding to FL, FR, RL, RR, C, LFE ?? */
1090 switch (runtime->channels) {
1091 case 1: slots = (1<<0) | (1<<4); break;
1092 case 2: slots = (1<<0) | (2<<4); break;
1093 case 3: slots = (1<<0) | (2<<4) | (5<<8); break;
1094 case 4: slots = (1<<0) | (2<<4) | (3<<8) | (4<<12); break;
1095 case 5: slots = (1<<0) | (2<<4) | (3<<8) | (4<<12) | (5<<16); break;
1096 case 6: slots = (1<<0) | (2<<4) | (3<<8) | (4<<12) | (5<<16) | (6<<20); break;
1097 default: slots = 0; break;
1098 }
1099 }
1100 /* STOP index is never reached */
1101 outl(0xff000000 | slots, VIADEV_REG(viadev, OFFSET_STOP_IDX));
1102 udelay(20);
1103 snd_via82xx_codec_ready(chip, 0);
1104 return 0;
1105 }
1106
1107 /*
1108 * prepare callback for capture on via823x
1109 */
1110 static int snd_via8233_capture_prepare(struct snd_pcm_substream *substream)
1111 {
1112 struct via82xx *chip = snd_pcm_substream_chip(substream);
1113 struct viadev *viadev = substream->runtime->private_data;
1114 struct snd_pcm_runtime *runtime = substream->runtime;
1115
1116 if (via_lock_rate(&chip->rates[1], runtime->rate) < 0)
1117 return -EINVAL;
1118 snd_ac97_set_rate(chip->ac97, AC97_PCM_LR_ADC_RATE, runtime->rate);
1119 snd_via82xx_channel_reset(chip, viadev);
1120 snd_via82xx_set_table_ptr(chip, viadev);
1121 outb(VIA_REG_CAPTURE_FIFO_ENABLE, VIADEV_REG(viadev, OFS_CAPTURE_FIFO));
1122 outl((runtime->format == SNDRV_PCM_FORMAT_S16_LE ? VIA8233_REG_TYPE_16BIT : 0) |
1123 (runtime->channels > 1 ? VIA8233_REG_TYPE_STEREO : 0) |
1124 0xff000000, /* STOP index is never reached */
1125 VIADEV_REG(viadev, OFFSET_STOP_IDX));
1126 udelay(20);
1127 snd_via82xx_codec_ready(chip, 0);
1128 return 0;
1129 }
1130
1131
1132 /*
1133 * pcm hardware definition, identical for both playback and capture
1134 */
1135 static struct snd_pcm_hardware snd_via82xx_hw =
1136 {
1137 .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1138 SNDRV_PCM_INFO_BLOCK_TRANSFER |
1139 SNDRV_PCM_INFO_MMAP_VALID |
1140 /* SNDRV_PCM_INFO_RESUME | */
1141 SNDRV_PCM_INFO_PAUSE),
1142 .formats = SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
1143 .rates = SNDRV_PCM_RATE_48000,
1144 .rate_min = 48000,
1145 .rate_max = 48000,
1146 .channels_min = 1,
1147 .channels_max = 2,
1148 .buffer_bytes_max = 128 * 1024,
1149 .period_bytes_min = 32,
1150 .period_bytes_max = 128 * 1024,
1151 .periods_min = 2,
1152 .periods_max = VIA_TABLE_SIZE / 2,
1153 .fifo_size = 0,
1154 };
1155
1156
1157 /*
1158 * open callback skeleton
1159 */
1160 static int snd_via82xx_pcm_open(struct via82xx *chip, struct viadev *viadev,
1161 struct snd_pcm_substream *substream)
1162 {
1163 struct snd_pcm_runtime *runtime = substream->runtime;
1164 int err;
1165 struct via_rate_lock *ratep;
1166
1167 runtime->hw = snd_via82xx_hw;
1168
1169 /* set the hw rate condition */
1170 ratep = &chip->rates[viadev->direction];
1171 spin_lock_irq(&ratep->lock);
1172 ratep->used++;
1173 if (chip->spdif_on && viadev->reg_offset == 0x30) {
1174 /* DXS#3 and spdif is on */
1175 runtime->hw.rates = chip->ac97->rates[AC97_RATES_SPDIF];
1176 snd_pcm_limit_hw_rates(runtime);
1177 } else if (chip->dxs_fixed && viadev->reg_offset < 0x40) {
1178 /* fixed DXS playback rate */
1179 runtime->hw.rates = SNDRV_PCM_RATE_48000;
1180 runtime->hw.rate_min = runtime->hw.rate_max = 48000;
1181 } else if (chip->dxs_src && viadev->reg_offset < 0x40) {
1182 /* use full SRC capabilities of DXS */
1183 runtime->hw.rates = (SNDRV_PCM_RATE_CONTINUOUS |
1184 SNDRV_PCM_RATE_8000_48000);
1185 runtime->hw.rate_min = 8000;
1186 runtime->hw.rate_max = 48000;
1187 } else if (! ratep->rate) {
1188 int idx = viadev->direction ? AC97_RATES_ADC : AC97_RATES_FRONT_DAC;
1189 runtime->hw.rates = chip->ac97->rates[idx];
1190 snd_pcm_limit_hw_rates(runtime);
1191 } else {
1192 /* a fixed rate */
1193 runtime->hw.rates = SNDRV_PCM_RATE_KNOT;
1194 runtime->hw.rate_max = runtime->hw.rate_min = ratep->rate;
1195 }
1196 spin_unlock_irq(&ratep->lock);
1197
1198 /* we may remove following constaint when we modify table entries
1199 in interrupt */
1200 if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
1201 return err;
1202
1203 runtime->private_data = viadev;
1204 viadev->substream = substream;
1205
1206 return 0;
1207 }
1208
1209
1210 /*
1211 * open callback for playback on via686 and via823x DSX
1212 */
1213 static int snd_via82xx_playback_open(struct snd_pcm_substream *substream)
1214 {
1215 struct via82xx *chip = snd_pcm_substream_chip(substream);
1216 struct viadev *viadev = &chip->devs[chip->playback_devno + substream->number];
1217 int err;
1218
1219 if ((err = snd_via82xx_pcm_open(chip, viadev, substream)) < 0)
1220 return err;
1221 return 0;
1222 }
1223
1224 /*
1225 * open callback for playback on via823x multi-channel
1226 */
1227 static int snd_via8233_multi_open(struct snd_pcm_substream *substream)
1228 {
1229 struct via82xx *chip = snd_pcm_substream_chip(substream);
1230 struct viadev *viadev = &chip->devs[chip->multi_devno];
1231 int err;
1232 /* channels constraint for VIA8233A
1233 * 3 and 5 channels are not supported
1234 */
1235 static unsigned int channels[] = {
1236 1, 2, 4, 6
1237 };
1238 static struct snd_pcm_hw_constraint_list hw_constraints_channels = {
1239 .count = ARRAY_SIZE(channels),
1240 .list = channels,
1241 .mask = 0,
1242 };
1243
1244 if ((err = snd_via82xx_pcm_open(chip, viadev, substream)) < 0)
1245 return err;
1246 substream->runtime->hw.channels_max = 6;
1247 if (chip->revision == VIA_REV_8233A)
1248 snd_pcm_hw_constraint_list(substream->runtime, 0,
1249 SNDRV_PCM_HW_PARAM_CHANNELS,
1250 &hw_constraints_channels);
1251 return 0;
1252 }
1253
1254 /*
1255 * open callback for capture on via686 and via823x
1256 */
1257 static int snd_via82xx_capture_open(struct snd_pcm_substream *substream)
1258 {
1259 struct via82xx *chip = snd_pcm_substream_chip(substream);
1260 struct viadev *viadev = &chip->devs[chip->capture_devno + substream->pcm->device];
1261
1262 return snd_via82xx_pcm_open(chip, viadev, substream);
1263 }
1264
1265 /*
1266 * close callback
1267 */
1268 static int snd_via82xx_pcm_close(struct snd_pcm_substream *substream)
1269 {
1270 struct via82xx *chip = snd_pcm_substream_chip(substream);
1271 struct viadev *viadev = substream->runtime->private_data;
1272 struct via_rate_lock *ratep;
1273
1274 /* release the rate lock */
1275 ratep = &chip->rates[viadev->direction];
1276 spin_lock_irq(&ratep->lock);
1277 ratep->used--;
1278 if (! ratep->used)
1279 ratep->rate = 0;
1280 spin_unlock_irq(&ratep->lock);
1281 if (! ratep->rate) {
1282 if (! viadev->direction) {
1283 snd_ac97_update_power(chip->ac97,
1284 AC97_PCM_FRONT_DAC_RATE, 0);
1285 snd_ac97_update_power(chip->ac97,
1286 AC97_PCM_SURR_DAC_RATE, 0);
1287 snd_ac97_update_power(chip->ac97,
1288 AC97_PCM_LFE_DAC_RATE, 0);
1289 } else
1290 snd_ac97_update_power(chip->ac97,
1291 AC97_PCM_LR_ADC_RATE, 0);
1292 }
1293 viadev->substream = NULL;
1294 return 0;
1295 }
1296
1297
1298 /* via686 playback callbacks */
1299 static struct snd_pcm_ops snd_via686_playback_ops = {
1300 .open = snd_via82xx_playback_open,
1301 .close = snd_via82xx_pcm_close,
1302 .ioctl = snd_pcm_lib_ioctl,
1303 .hw_params = snd_via82xx_hw_params,
1304 .hw_free = snd_via82xx_hw_free,
1305 .prepare = snd_via686_playback_prepare,
1306 .trigger = snd_via82xx_pcm_trigger,
1307 .pointer = snd_via686_pcm_pointer,
1308 .page = snd_pcm_sgbuf_ops_page,
1309 };
1310
1311 /* via686 capture callbacks */
1312 static struct snd_pcm_ops snd_via686_capture_ops = {
1313 .open = snd_via82xx_capture_open,
1314 .close = snd_via82xx_pcm_close,
1315 .ioctl = snd_pcm_lib_ioctl,
1316 .hw_params = snd_via82xx_hw_params,
1317 .hw_free = snd_via82xx_hw_free,
1318 .prepare = snd_via686_capture_prepare,
1319 .trigger = snd_via82xx_pcm_trigger,
1320 .pointer = snd_via686_pcm_pointer,
1321 .page = snd_pcm_sgbuf_ops_page,
1322 };
1323
1324 /* via823x DSX playback callbacks */
1325 static struct snd_pcm_ops snd_via8233_playback_ops = {
1326 .open = snd_via82xx_playback_open,
1327 .close = snd_via82xx_pcm_close,
1328 .ioctl = snd_pcm_lib_ioctl,
1329 .hw_params = snd_via82xx_hw_params,
1330 .hw_free = snd_via82xx_hw_free,
1331 .prepare = snd_via8233_playback_prepare,
1332 .trigger = snd_via82xx_pcm_trigger,
1333 .pointer = snd_via8233_pcm_pointer,
1334 .page = snd_pcm_sgbuf_ops_page,
1335 };
1336
1337 /* via823x multi-channel playback callbacks */
1338 static struct snd_pcm_ops snd_via8233_multi_ops = {
1339 .open = snd_via8233_multi_open,
1340 .close = snd_via82xx_pcm_close,
1341 .ioctl = snd_pcm_lib_ioctl,
1342 .hw_params = snd_via82xx_hw_params,
1343 .hw_free = snd_via82xx_hw_free,
1344 .prepare = snd_via8233_multi_prepare,
1345 .trigger = snd_via82xx_pcm_trigger,
1346 .pointer = snd_via8233_pcm_pointer,
1347 .page = snd_pcm_sgbuf_ops_page,
1348 };
1349
1350 /* via823x capture callbacks */
1351 static struct snd_pcm_ops snd_via8233_capture_ops = {
1352 .open = snd_via82xx_capture_open,
1353 .close = snd_via82xx_pcm_close,
1354 .ioctl = snd_pcm_lib_ioctl,
1355 .hw_params = snd_via82xx_hw_params,
1356 .hw_free = snd_via82xx_hw_free,
1357 .prepare = snd_via8233_capture_prepare,
1358 .trigger = snd_via82xx_pcm_trigger,
1359 .pointer = snd_via8233_pcm_pointer,
1360 .page = snd_pcm_sgbuf_ops_page,
1361 };
1362
1363
1364 static void init_viadev(struct via82xx *chip, int idx, unsigned int reg_offset,
1365 int shadow_pos, int direction)
1366 {
1367 chip->devs[idx].reg_offset = reg_offset;
1368 chip->devs[idx].shadow_shift = shadow_pos * 4;
1369 chip->devs[idx].direction = direction;
1370 chip->devs[idx].port = chip->port + reg_offset;
1371 }
1372
1373 /*
1374 * create pcm instances for VIA8233, 8233C and 8235 (not 8233A)
1375 */
1376 static int __devinit snd_via8233_pcm_new(struct via82xx *chip)
1377 {
1378 struct snd_pcm *pcm;
1379 int i, err;
1380
1381 chip->playback_devno = 0; /* x 4 */
1382 chip->multi_devno = 4; /* x 1 */
1383 chip->capture_devno = 5; /* x 2 */
1384 chip->num_devs = 7;
1385 chip->intr_mask = 0x33033333; /* FLAG|EOL for rec0-1, mc, sdx0-3 */
1386
1387 /* PCM #0: 4 DSX playbacks and 1 capture */
1388 err = snd_pcm_new(chip->card, chip->card->shortname, 0, 4, 1, &pcm);
1389 if (err < 0)
1390 return err;
1391 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_via8233_playback_ops);
1392 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_via8233_capture_ops);
1393 pcm->private_data = chip;
1394 strcpy(pcm->name, chip->card->shortname);
1395 chip->pcms[0] = pcm;
1396 /* set up playbacks */
1397 for (i = 0; i < 4; i++)
1398 init_viadev(chip, i, 0x10 * i, i, 0);
1399 /* capture */
1400 init_viadev(chip, chip->capture_devno, VIA_REG_CAPTURE_8233_STATUS, 6, 1);
1401
1402 if ((err = snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
1403 snd_dma_pci_data(chip->pci),
1404 64*1024, 128*1024)) < 0)
1405 return err;
1406
1407 /* PCM #1: multi-channel playback and 2nd capture */
1408 err = snd_pcm_new(chip->card, chip->card->shortname, 1, 1, 1, &pcm);
1409 if (err < 0)
1410 return err;
1411 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_via8233_multi_ops);
1412 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_via8233_capture_ops);
1413 pcm->private_data = chip;
1414 strcpy(pcm->name, chip->card->shortname);
1415 chip->pcms[1] = pcm;
1416 /* set up playback */
1417 init_viadev(chip, chip->multi_devno, VIA_REG_MULTPLAY_STATUS, 4, 0);
1418 /* set up capture */
1419 init_viadev(chip, chip->capture_devno + 1, VIA_REG_CAPTURE_8233_STATUS + 0x10, 7, 1);
1420
1421 if ((err = snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
1422 snd_dma_pci_data(chip->pci),
1423 64*1024, 128*1024)) < 0)
1424 return err;
1425
1426 return 0;
1427 }
1428
1429 /*
1430 * create pcm instances for VIA8233A
1431 */
1432 static int __devinit snd_via8233a_pcm_new(struct via82xx *chip)
1433 {
1434 struct snd_pcm *pcm;
1435 int err;
1436
1437 chip->multi_devno = 0;
1438 chip->playback_devno = 1;
1439 chip->capture_devno = 2;
1440 chip->num_devs = 3;
1441 chip->intr_mask = 0x03033000; /* FLAG|EOL for rec0, mc, sdx3 */
1442
1443 /* PCM #0: multi-channel playback and capture */
1444 err = snd_pcm_new(chip->card, chip->card->shortname, 0, 1, 1, &pcm);
1445 if (err < 0)
1446 return err;
1447 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_via8233_multi_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 playback */
1453 init_viadev(chip, chip->multi_devno, VIA_REG_MULTPLAY_STATUS, 4, 0);
1454 /* capture */
1455 init_viadev(chip, chip->capture_devno, VIA_REG_CAPTURE_8233_STATUS, 6, 1);
1456
1457 if ((err = snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
1458 snd_dma_pci_data(chip->pci),
1459 64*1024, 128*1024)) < 0)
1460 return err;
1461
1462 /* SPDIF supported? */
1463 if (! ac97_can_spdif(chip->ac97))
1464 return 0;
1465
1466 /* PCM #1: DXS3 playback (for spdif) */
1467 err = snd_pcm_new(chip->card, chip->card->shortname, 1, 1, 0, &pcm);
1468 if (err < 0)
1469 return err;
1470 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_via8233_playback_ops);
1471 pcm->private_data = chip;
1472 strcpy(pcm->name, chip->card->shortname);
1473 chip->pcms[1] = pcm;
1474 /* set up playback */
1475 init_viadev(chip, chip->playback_devno, 0x30, 3, 0);
1476
1477 if ((err = snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
1478 snd_dma_pci_data(chip->pci),
1479 64*1024, 128*1024)) < 0)
1480 return err;
1481
1482 return 0;
1483 }
1484
1485 /*
1486 * create a pcm instance for via686a/b
1487 */
1488 static int __devinit snd_via686_pcm_new(struct via82xx *chip)
1489 {
1490 struct snd_pcm *pcm;
1491 int err;
1492
1493 chip->playback_devno = 0;
1494 chip->capture_devno = 1;
1495 chip->num_devs = 2;
1496 chip->intr_mask = 0x77; /* FLAG | EOL for PB, CP, FM */
1497
1498 err = snd_pcm_new(chip->card, chip->card->shortname, 0, 1, 1, &pcm);
1499 if (err < 0)
1500 return err;
1501 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_via686_playback_ops);
1502 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_via686_capture_ops);
1503 pcm->private_data = chip;
1504 strcpy(pcm->name, chip->card->shortname);
1505 chip->pcms[0] = pcm;
1506 init_viadev(chip, 0, VIA_REG_PLAYBACK_STATUS, 0, 0);
1507 init_viadev(chip, 1, VIA_REG_CAPTURE_STATUS, 0, 1);
1508
1509 if ((err = snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
1510 snd_dma_pci_data(chip->pci),
1511 64*1024, 128*1024)) < 0)
1512 return err;
1513
1514 return 0;
1515 }
1516
1517
1518 /*
1519 * Mixer part
1520 */
1521
1522 static int snd_via8233_capture_source_info(struct snd_kcontrol *kcontrol,
1523 struct snd_ctl_elem_info *uinfo)
1524 {
1525 /* formerly they were "Line" and "Mic", but it looks like that they
1526 * have nothing to do with the actual physical connections...
1527 */
1528 static char *texts[2] = {
1529 "Input1", "Input2"
1530 };
1531 uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
1532 uinfo->count = 1;
1533 uinfo->value.enumerated.items = 2;
1534 if (uinfo->value.enumerated.item >= 2)
1535 uinfo->value.enumerated.item = 1;
1536 strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
1537 return 0;
1538 }
1539
1540 static int snd_via8233_capture_source_get(struct snd_kcontrol *kcontrol,
1541 struct snd_ctl_elem_value *ucontrol)
1542 {
1543 struct via82xx *chip = snd_kcontrol_chip(kcontrol);
1544 unsigned long port = chip->port + (kcontrol->id.index ? (VIA_REG_CAPTURE_CHANNEL + 0x10) : VIA_REG_CAPTURE_CHANNEL);
1545 ucontrol->value.enumerated.item[0] = inb(port) & VIA_REG_CAPTURE_CHANNEL_MIC ? 1 : 0;
1546 return 0;
1547 }
1548
1549 static int snd_via8233_capture_source_put(struct snd_kcontrol *kcontrol,
1550 struct snd_ctl_elem_value *ucontrol)
1551 {
1552 struct via82xx *chip = snd_kcontrol_chip(kcontrol);
1553 unsigned long port = chip->port + (kcontrol->id.index ? (VIA_REG_CAPTURE_CHANNEL + 0x10) : VIA_REG_CAPTURE_CHANNEL);
1554 u8 val, oval;
1555
1556 spin_lock_irq(&chip->reg_lock);
1557 oval = inb(port);
1558 val = oval & ~VIA_REG_CAPTURE_CHANNEL_MIC;
1559 if (ucontrol->value.enumerated.item[0])
1560 val |= VIA_REG_CAPTURE_CHANNEL_MIC;
1561 if (val != oval)
1562 outb(val, port);
1563 spin_unlock_irq(&chip->reg_lock);
1564 return val != oval;
1565 }
1566
1567 static struct snd_kcontrol_new snd_via8233_capture_source __devinitdata = {
1568 .name = "Input Source Select",
1569 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1570 .info = snd_via8233_capture_source_info,
1571 .get = snd_via8233_capture_source_get,
1572 .put = snd_via8233_capture_source_put,
1573 };
1574
1575 static int snd_via8233_dxs3_spdif_info(struct snd_kcontrol *kcontrol,
1576 struct snd_ctl_elem_info *uinfo)
1577 {
1578 uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
1579 uinfo->count = 1;
1580 uinfo->value.integer.min = 0;
1581 uinfo->value.integer.max = 1;
1582 return 0;
1583 }
1584
1585 static int snd_via8233_dxs3_spdif_get(struct snd_kcontrol *kcontrol,
1586 struct snd_ctl_elem_value *ucontrol)
1587 {
1588 struct via82xx *chip = snd_kcontrol_chip(kcontrol);
1589 u8 val;
1590
1591 pci_read_config_byte(chip->pci, VIA8233_SPDIF_CTRL, &val);
1592 ucontrol->value.integer.value[0] = (val & VIA8233_SPDIF_DX3) ? 1 : 0;
1593 return 0;
1594 }
1595
1596 static int snd_via8233_dxs3_spdif_put(struct snd_kcontrol *kcontrol,
1597 struct snd_ctl_elem_value *ucontrol)
1598 {
1599 struct via82xx *chip = snd_kcontrol_chip(kcontrol);
1600 u8 val, oval;
1601
1602 pci_read_config_byte(chip->pci, VIA8233_SPDIF_CTRL, &oval);
1603 val = oval & ~VIA8233_SPDIF_DX3;
1604 if (ucontrol->value.integer.value[0])
1605 val |= VIA8233_SPDIF_DX3;
1606 /* save the spdif flag for rate filtering */
1607 chip->spdif_on = ucontrol->value.integer.value[0] ? 1 : 0;
1608 if (val != oval) {
1609 pci_write_config_byte(chip->pci, VIA8233_SPDIF_CTRL, val);
1610 return 1;
1611 }
1612 return 0;
1613 }
1614
1615 static struct snd_kcontrol_new snd_via8233_dxs3_spdif_control __devinitdata = {
1616 .name = SNDRV_CTL_NAME_IEC958("Output ",NONE,SWITCH),
1617 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1618 .info = snd_via8233_dxs3_spdif_info,
1619 .get = snd_via8233_dxs3_spdif_get,
1620 .put = snd_via8233_dxs3_spdif_put,
1621 };
1622
1623 static int snd_via8233_dxs_volume_info(struct snd_kcontrol *kcontrol,
1624 struct snd_ctl_elem_info *uinfo)
1625 {
1626 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
1627 uinfo->count = 2;
1628 uinfo->value.integer.min = 0;
1629 uinfo->value.integer.max = VIA_DXS_MAX_VOLUME;
1630 return 0;
1631 }
1632
1633 static int snd_via8233_dxs_volume_get(struct snd_kcontrol *kcontrol,
1634 struct snd_ctl_elem_value *ucontrol)
1635 {
1636 struct via82xx *chip = snd_kcontrol_chip(kcontrol);
1637 unsigned int idx = snd_ctl_get_ioff(kcontrol, &ucontrol->id);
1638
1639 ucontrol->value.integer.value[0] = VIA_DXS_MAX_VOLUME - chip->playback_volume[idx][0];
1640 ucontrol->value.integer.value[1] = VIA_DXS_MAX_VOLUME - chip->playback_volume[idx][1];
1641 return 0;
1642 }
1643
1644 static int snd_via8233_pcmdxs_volume_get(struct snd_kcontrol *kcontrol,
1645 struct snd_ctl_elem_value *ucontrol)
1646 {
1647 struct via82xx *chip = snd_kcontrol_chip(kcontrol);
1648 ucontrol->value.integer.value[0] = VIA_DXS_MAX_VOLUME - chip->playback_volume_c[0];
1649 ucontrol->value.integer.value[1] = VIA_DXS_MAX_VOLUME - chip->playback_volume_c[1];
1650 return 0;
1651 }
1652
1653 static int snd_via8233_dxs_volume_put(struct snd_kcontrol *kcontrol,
1654 struct snd_ctl_elem_value *ucontrol)
1655 {
1656 struct via82xx *chip = snd_kcontrol_chip(kcontrol);
1657 unsigned int idx = snd_ctl_get_ioff(kcontrol, &ucontrol->id);
1658 unsigned long port = chip->port + 0x10 * idx;
1659 unsigned char val;
1660 int i, change = 0;
1661
1662 for (i = 0; i < 2; i++) {
1663 val = ucontrol->value.integer.value[i];
1664 if (val > VIA_DXS_MAX_VOLUME)
1665 val = VIA_DXS_MAX_VOLUME;
1666 val = VIA_DXS_MAX_VOLUME - val;
1667 change |= val != chip->playback_volume[idx][i];
1668 if (change) {
1669 chip->playback_volume[idx][i] = val;
1670 outb(val, port + VIA_REG_OFS_PLAYBACK_VOLUME_L + i);
1671 }
1672 }
1673 return change;
1674 }
1675
1676 static int snd_via8233_pcmdxs_volume_put(struct snd_kcontrol *kcontrol,
1677 struct snd_ctl_elem_value *ucontrol)
1678 {
1679 struct via82xx *chip = snd_kcontrol_chip(kcontrol);
1680 unsigned int idx;
1681 unsigned char val;
1682 int i, change = 0;
1683
1684 for (i = 0; i < 2; i++) {
1685 val = ucontrol->value.integer.value[i];
1686 if (val > VIA_DXS_MAX_VOLUME)
1687 val = VIA_DXS_MAX_VOLUME;
1688 val = VIA_DXS_MAX_VOLUME - val;
1689 if (val != chip->playback_volume_c[i]) {
1690 change = 1;
1691 chip->playback_volume_c[i] = val;
1692 for (idx = 0; idx < 4; idx++) {
1693 unsigned long port = chip->port + 0x10 * idx;
1694 chip->playback_volume[idx][i] = val;
1695 outb(val, port + VIA_REG_OFS_PLAYBACK_VOLUME_L + i);
1696 }
1697 }
1698 }
1699 return change;
1700 }
1701
1702 static const DECLARE_TLV_DB_SCALE(db_scale_dxs, -9450, 150, 1);
1703
1704 static struct snd_kcontrol_new snd_via8233_pcmdxs_volume_control __devinitdata = {
1705 .name = "PCM Playback Volume",
1706 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1707 .access = (SNDRV_CTL_ELEM_ACCESS_READWRITE |
1708 SNDRV_CTL_ELEM_ACCESS_TLV_READ),
1709 .info = snd_via8233_dxs_volume_info,
1710 .get = snd_via8233_pcmdxs_volume_get,
1711 .put = snd_via8233_pcmdxs_volume_put,
1712 .tlv = { .p = db_scale_dxs }
1713 };
1714
1715 static struct snd_kcontrol_new snd_via8233_dxs_volume_control __devinitdata = {
1716 .name = "VIA DXS Playback Volume",
1717 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1718 .access = (SNDRV_CTL_ELEM_ACCESS_READWRITE |
1719 SNDRV_CTL_ELEM_ACCESS_TLV_READ),
1720 .count = 4,
1721 .info = snd_via8233_dxs_volume_info,
1722 .get = snd_via8233_dxs_volume_get,
1723 .put = snd_via8233_dxs_volume_put,
1724 .tlv = { .p = db_scale_dxs }
1725 };
1726
1727 /*
1728 */
1729
1730 static void snd_via82xx_mixer_free_ac97_bus(struct snd_ac97_bus *bus)
1731 {
1732 struct via82xx *chip = bus->private_data;
1733 chip->ac97_bus = NULL;
1734 }
1735
1736 static void snd_via82xx_mixer_free_ac97(struct snd_ac97 *ac97)
1737 {
1738 struct via82xx *chip = ac97->private_data;
1739 chip->ac97 = NULL;
1740 }
1741
1742 static struct ac97_quirk ac97_quirks[] = {
1743 {
1744 .subvendor = 0x1106,
1745 .subdevice = 0x4161,
1746 .codec_id = 0x56494161, /* VT1612A */
1747 .name = "Soltek SL-75DRV5",
1748 .type = AC97_TUNE_NONE
1749 },
1750 { /* FIXME: which codec? */
1751 .subvendor = 0x1106,
1752 .subdevice = 0x4161,
1753 .name = "ASRock K7VT2",
1754 .type = AC97_TUNE_HP_ONLY
1755 },
1756 {
1757 .subvendor = 0x1019,
1758 .subdevice = 0x0a81,
1759 .name = "ECS K7VTA3",
1760 .type = AC97_TUNE_HP_ONLY
1761 },
1762 {
1763 .subvendor = 0x1019,
1764 .subdevice = 0x0a85,
1765 .name = "ECS L7VMM2",
1766 .type = AC97_TUNE_HP_ONLY
1767 },
1768 {
1769 .subvendor = 0x1849,
1770 .subdevice = 0x3059,
1771 .name = "ASRock K7VM2",
1772 .type = AC97_TUNE_HP_ONLY /* VT1616 */
1773 },
1774 {
1775 .subvendor = 0x14cd,
1776 .subdevice = 0x7002,
1777 .name = "Unknown",
1778 .type = AC97_TUNE_ALC_JACK
1779 },
1780 {
1781 .subvendor = 0x1071,
1782 .subdevice = 0x8590,
1783 .name = "Mitac Mobo",
1784 .type = AC97_TUNE_ALC_JACK
1785 },
1786 {
1787 .subvendor = 0x161f,
1788 .subdevice = 0x202b,
1789 .name = "Arima Notebook",
1790 .type = AC97_TUNE_HP_ONLY,
1791 },
1792 {
1793 .subvendor = 0x161f,
1794 .subdevice = 0x2032,
1795 .name = "Targa Traveller 811",
1796 .type = AC97_TUNE_HP_ONLY,
1797 },
1798 {
1799 .subvendor = 0x161f,
1800 .subdevice = 0x2032,
1801 .name = "m680x",
1802 .type = AC97_TUNE_HP_ONLY, /* http://launchpad.net/bugs/38546 */
1803 },
1804 { } /* terminator */
1805 };
1806
1807 static int __devinit snd_via82xx_mixer_new(struct via82xx *chip, const char *quirk_override)
1808 {
1809 struct snd_ac97_template ac97;
1810 int err;
1811 static struct snd_ac97_bus_ops ops = {
1812 .write = snd_via82xx_codec_write,
1813 .read = snd_via82xx_codec_read,
1814 .wait = snd_via82xx_codec_wait,
1815 };
1816
1817 if ((err = snd_ac97_bus(chip->card, 0, &ops, chip, &chip->ac97_bus)) < 0)
1818 return err;
1819 chip->ac97_bus->private_free = snd_via82xx_mixer_free_ac97_bus;
1820 chip->ac97_bus->clock = chip->ac97_clock;
1821
1822 memset(&ac97, 0, sizeof(ac97));
1823 ac97.private_data = chip;
1824 ac97.private_free = snd_via82xx_mixer_free_ac97;
1825 ac97.pci = chip->pci;
1826 ac97.scaps = AC97_SCAP_SKIP_MODEM | AC97_SCAP_POWER_SAVE;
1827 if ((err = snd_ac97_mixer(chip->ac97_bus, &ac97, &chip->ac97)) < 0)
1828 return err;
1829
1830 snd_ac97_tune_hardware(chip->ac97, ac97_quirks, quirk_override);
1831
1832 if (chip->chip_type != TYPE_VIA686) {
1833 /* use slot 10/11 */
1834 snd_ac97_update_bits(chip->ac97, AC97_EXTENDED_STATUS, 0x03 << 4, 0x03 << 4);
1835 }
1836
1837 return 0;
1838 }
1839
1840 #ifdef SUPPORT_JOYSTICK
1841 #define JOYSTICK_ADDR 0x200
1842 static int __devinit snd_via686_create_gameport(struct via82xx *chip, unsigned char *legacy)
1843 {
1844 struct gameport *gp;
1845 struct resource *r;
1846
1847 if (!joystick)
1848 return -ENODEV;
1849
1850 r = request_region(JOYSTICK_ADDR, 8, "VIA686 gameport");
1851 if (!r) {
1852 printk(KERN_WARNING "via82xx: cannot reserve joystick port 0x%#x\n",
1853 JOYSTICK_ADDR);
1854 return -EBUSY;
1855 }
1856
1857 chip->gameport = gp = gameport_allocate_port();
1858 if (!gp) {
1859 printk(KERN_ERR "via82xx: cannot allocate memory for gameport\n");
1860 release_and_free_resource(r);
1861 return -ENOMEM;
1862 }
1863
1864 gameport_set_name(gp, "VIA686 Gameport");
1865 gameport_set_phys(gp, "pci%s/gameport0", pci_name(chip->pci));
1866 gameport_set_dev_parent(gp, &chip->pci->dev);
1867 gp->io = JOYSTICK_ADDR;
1868 gameport_set_port_data(gp, r);
1869
1870 /* Enable legacy joystick port */
1871 *legacy |= VIA_FUNC_ENABLE_GAME;
1872 pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE, *legacy);
1873
1874 gameport_register_port(chip->gameport);
1875
1876 return 0;
1877 }
1878
1879 static void snd_via686_free_gameport(struct via82xx *chip)
1880 {
1881 if (chip->gameport) {
1882 struct resource *r = gameport_get_port_data(chip->gameport);
1883
1884 gameport_unregister_port(chip->gameport);
1885 chip->gameport = NULL;
1886 release_and_free_resource(r);
1887 }
1888 }
1889 #else
1890 static inline int snd_via686_create_gameport(struct via82xx *chip, unsigned char *legacy)
1891 {
1892 return -ENOSYS;
1893 }
1894 static inline void snd_via686_free_gameport(struct via82xx *chip) { }
1895 #endif
1896
1897
1898 /*
1899 *
1900 */
1901
1902 static int __devinit snd_via8233_init_misc(struct via82xx *chip)
1903 {
1904 int i, err, caps;
1905 unsigned char val;
1906
1907 caps = chip->chip_type == TYPE_VIA8233A ? 1 : 2;
1908 for (i = 0; i < caps; i++) {
1909 snd_via8233_capture_source.index = i;
1910 err = snd_ctl_add(chip->card, snd_ctl_new1(&snd_via8233_capture_source, chip));
1911 if (err < 0)
1912 return err;
1913 }
1914 if (ac97_can_spdif(chip->ac97)) {
1915 err = snd_ctl_add(chip->card, snd_ctl_new1(&snd_via8233_dxs3_spdif_control, chip));
1916 if (err < 0)
1917 return err;
1918 }
1919 if (chip->chip_type != TYPE_VIA8233A) {
1920 /* when no h/w PCM volume control is found, use DXS volume control
1921 * as the PCM vol control
1922 */
1923 struct snd_ctl_elem_id sid;
1924 memset(&sid, 0, sizeof(sid));
1925 strcpy(sid.name, "PCM Playback Volume");
1926 sid.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
1927 if (! snd_ctl_find_id(chip->card, &sid)) {
1928 snd_printd(KERN_INFO "Using DXS as PCM Playback\n");
1929 err = snd_ctl_add(chip->card, snd_ctl_new1(&snd_via8233_pcmdxs_volume_control, chip));
1930 if (err < 0)
1931 return err;
1932 }
1933 else /* Using DXS when PCM emulation is enabled is really weird */
1934 {
1935 /* Standalone DXS controls */
1936 err = snd_ctl_add(chip->card, snd_ctl_new1(&snd_via8233_dxs_volume_control, chip));
1937 if (err < 0)
1938 return err;
1939 }
1940 }
1941 /* select spdif data slot 10/11 */
1942 pci_read_config_byte(chip->pci, VIA8233_SPDIF_CTRL, &val);
1943 val = (val & ~VIA8233_SPDIF_SLOT_MASK) | VIA8233_SPDIF_SLOT_1011;
1944 val &= ~VIA8233_SPDIF_DX3; /* SPDIF off as default */
1945 pci_write_config_byte(chip->pci, VIA8233_SPDIF_CTRL, val);
1946
1947 return 0;
1948 }
1949
1950 static int __devinit snd_via686_init_misc(struct via82xx *chip)
1951 {
1952 unsigned char legacy, legacy_cfg;
1953 int rev_h = 0;
1954
1955 legacy = chip->old_legacy;
1956 legacy_cfg = chip->old_legacy_cfg;
1957 legacy |= VIA_FUNC_MIDI_IRQMASK; /* FIXME: correct? (disable MIDI) */
1958 legacy &= ~VIA_FUNC_ENABLE_GAME; /* disable joystick */
1959 if (chip->revision >= VIA_REV_686_H) {
1960 rev_h = 1;
1961 if (mpu_port >= 0x200) { /* force MIDI */
1962 mpu_port &= 0xfffc;
1963 pci_write_config_dword(chip->pci, 0x18, mpu_port | 0x01);
1964 #ifdef CONFIG_PM
1965 chip->mpu_port_saved = mpu_port;
1966 #endif
1967 } else {
1968 mpu_port = pci_resource_start(chip->pci, 2);
1969 }
1970 } else {
1971 switch (mpu_port) { /* force MIDI */
1972 case 0x300:
1973 case 0x310:
1974 case 0x320:
1975 case 0x330:
1976 legacy_cfg &= ~(3 << 2);
1977 legacy_cfg |= (mpu_port & 0x0030) >> 2;
1978 break;
1979 default: /* no, use BIOS settings */
1980 if (legacy & VIA_FUNC_ENABLE_MIDI)
1981 mpu_port = 0x300 + ((legacy_cfg & 0x000c) << 2);
1982 break;
1983 }
1984 }
1985 if (mpu_port >= 0x200 &&
1986 (chip->mpu_res = request_region(mpu_port, 2, "VIA82xx MPU401"))
1987 != NULL) {
1988 if (rev_h)
1989 legacy |= VIA_FUNC_MIDI_PNP; /* enable PCI I/O 2 */
1990 legacy |= VIA_FUNC_ENABLE_MIDI;
1991 } else {
1992 if (rev_h)
1993 legacy &= ~VIA_FUNC_MIDI_PNP; /* disable PCI I/O 2 */
1994 legacy &= ~VIA_FUNC_ENABLE_MIDI;
1995 mpu_port = 0;
1996 }
1997
1998 pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE, legacy);
1999 pci_write_config_byte(chip->pci, VIA_PNP_CONTROL, legacy_cfg);
2000 if (chip->mpu_res) {
2001 if (snd_mpu401_uart_new(chip->card, 0, MPU401_HW_VIA686A,
2002 mpu_port, MPU401_INFO_INTEGRATED,
2003 chip->irq, 0, &chip->rmidi) < 0) {
2004 printk(KERN_WARNING "unable to initialize MPU-401"
2005 " at 0x%lx, skipping\n", mpu_port);
2006 legacy &= ~VIA_FUNC_ENABLE_MIDI;
2007 } else {
2008 legacy &= ~VIA_FUNC_MIDI_IRQMASK; /* enable MIDI interrupt */
2009 }
2010 pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE, legacy);
2011 }
2012
2013 snd_via686_create_gameport(chip, &legacy);
2014
2015 #ifdef CONFIG_PM
2016 chip->legacy_saved = legacy;
2017 chip->legacy_cfg_saved = legacy_cfg;
2018 #endif
2019
2020 return 0;
2021 }
2022
2023
2024 /*
2025 * proc interface
2026 */
2027 static void snd_via82xx_proc_read(struct snd_info_entry *entry,
2028 struct snd_info_buffer *buffer)
2029 {
2030 struct via82xx *chip = entry->private_data;
2031 int i;
2032
2033 snd_iprintf(buffer, "%s\n\n", chip->card->longname);
2034 for (i = 0; i < 0xa0; i += 4) {
2035 snd_iprintf(buffer, "%02x: %08x\n", i, inl(chip->port + i));
2036 }
2037 }
2038
2039 static void __devinit snd_via82xx_proc_init(struct via82xx *chip)
2040 {
2041 struct snd_info_entry *entry;
2042
2043 if (! snd_card_proc_new(chip->card, "via82xx", &entry))
2044 snd_info_set_text_ops(entry, chip, snd_via82xx_proc_read);
2045 }
2046
2047 /*
2048 *
2049 */
2050
2051 static int snd_via82xx_chip_init(struct via82xx *chip)
2052 {
2053 unsigned int val;
2054 unsigned long end_time;
2055 unsigned char pval;
2056
2057 #if 0 /* broken on K7M? */
2058 if (chip->chip_type == TYPE_VIA686)
2059 /* disable all legacy ports */
2060 pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE, 0);
2061 #endif
2062 pci_read_config_byte(chip->pci, VIA_ACLINK_STAT, &pval);
2063 if (! (pval & VIA_ACLINK_C00_READY)) { /* codec not ready? */
2064 /* deassert ACLink reset, force SYNC */
2065 pci_write_config_byte(chip->pci, VIA_ACLINK_CTRL,
2066 VIA_ACLINK_CTRL_ENABLE |
2067 VIA_ACLINK_CTRL_RESET |
2068 VIA_ACLINK_CTRL_SYNC);
2069 udelay(100);
2070 #if 1 /* FIXME: should we do full reset here for all chip models? */
2071 pci_write_config_byte(chip->pci, VIA_ACLINK_CTRL, 0x00);
2072 udelay(100);
2073 #else
2074 /* deassert ACLink reset, force SYNC (warm AC'97 reset) */
2075 pci_write_config_byte(chip->pci, VIA_ACLINK_CTRL,
2076 VIA_ACLINK_CTRL_RESET|VIA_ACLINK_CTRL_SYNC);
2077 udelay(2);
2078 #endif
2079 /* ACLink on, deassert ACLink reset, VSR, SGD data out */
2080 /* note - FM data out has trouble with non VRA codecs !! */
2081 pci_write_config_byte(chip->pci, VIA_ACLINK_CTRL, VIA_ACLINK_CTRL_INIT);
2082 udelay(100);
2083 }
2084
2085 /* Make sure VRA is enabled, in case we didn't do a
2086 * complete codec reset, above */
2087 pci_read_config_byte(chip->pci, VIA_ACLINK_CTRL, &pval);
2088 if ((pval & VIA_ACLINK_CTRL_INIT) != VIA_ACLINK_CTRL_INIT) {
2089 /* ACLink on, deassert ACLink reset, VSR, SGD data out */
2090 /* note - FM data out has trouble with non VRA codecs !! */
2091 pci_write_config_byte(chip->pci, VIA_ACLINK_CTRL, VIA_ACLINK_CTRL_INIT);
2092 udelay(100);
2093 }
2094
2095 /* wait until codec ready */
2096 end_time = jiffies + msecs_to_jiffies(750);
2097 do {
2098 pci_read_config_byte(chip->pci, VIA_ACLINK_STAT, &pval);
2099 if (pval & VIA_ACLINK_C00_READY) /* primary codec ready */
2100 break;
2101 schedule_timeout_uninterruptible(1);
2102 } while (time_before(jiffies, end_time));
2103
2104 if ((val = snd_via82xx_codec_xread(chip)) & VIA_REG_AC97_BUSY)
2105 snd_printk(KERN_ERR "AC'97 codec is not ready [0x%x]\n", val);
2106
2107 #if 0 /* FIXME: we don't support the second codec yet so skip the detection now.. */
2108 snd_via82xx_codec_xwrite(chip, VIA_REG_AC97_READ |
2109 VIA_REG_AC97_SECONDARY_VALID |
2110 (VIA_REG_AC97_CODEC_ID_SECONDARY << VIA_REG_AC97_CODEC_ID_SHIFT));
2111 end_time = jiffies + msecs_to_jiffies(750);
2112 snd_via82xx_codec_xwrite(chip, VIA_REG_AC97_READ |
2113 VIA_REG_AC97_SECONDARY_VALID |
2114 (VIA_REG_AC97_CODEC_ID_SECONDARY << VIA_REG_AC97_CODEC_ID_SHIFT));
2115 do {
2116 if ((val = snd_via82xx_codec_xread(chip)) & VIA_REG_AC97_SECONDARY_VALID) {
2117 chip->ac97_secondary = 1;
2118 goto __ac97_ok2;
2119 }
2120 schedule_timeout_interruptible(1);
2121 } while (time_before(jiffies, end_time));
2122 /* This is ok, the most of motherboards have only one codec */
2123
2124 __ac97_ok2:
2125 #endif
2126
2127 if (chip->chip_type == TYPE_VIA686) {
2128 /* route FM trap to IRQ, disable FM trap */
2129 pci_write_config_byte(chip->pci, VIA_FM_NMI_CTRL, 0);
2130 /* disable all GPI interrupts */
2131 outl(0, VIAREG(chip, GPI_INTR));
2132 }
2133
2134 if (chip->chip_type != TYPE_VIA686) {
2135 /* Workaround for Award BIOS bug:
2136 * DXS channels don't work properly with VRA if MC97 is disabled.
2137 */
2138 struct pci_dev *pci;
2139 pci = pci_get_device(0x1106, 0x3068, NULL); /* MC97 */
2140 if (pci) {
2141 unsigned char data;
2142 pci_read_config_byte(pci, 0x44, &data);
2143 pci_write_config_byte(pci, 0x44, data | 0x40);
2144 pci_dev_put(pci);
2145 }
2146 }
2147
2148 if (chip->chip_type != TYPE_VIA8233A) {
2149 int i, idx;
2150 for (idx = 0; idx < 4; idx++) {
2151 unsigned long port = chip->port + 0x10 * idx;
2152 for (i = 0; i < 2; i++) {
2153 chip->playback_volume[idx][i]=chip->playback_volume_c[i];
2154 outb(chip->playback_volume_c[i],
2155 port + VIA_REG_OFS_PLAYBACK_VOLUME_L + i);
2156 }
2157 }
2158 }
2159
2160 return 0;
2161 }
2162
2163 #ifdef CONFIG_PM
2164 /*
2165 * power management
2166 */
2167 static int snd_via82xx_suspend(struct pci_dev *pci, pm_message_t state)
2168 {
2169 struct snd_card *card = pci_get_drvdata(pci);
2170 struct via82xx *chip = card->private_data;
2171 int i;
2172
2173 snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
2174 for (i = 0; i < 2; i++)
2175 snd_pcm_suspend_all(chip->pcms[i]);
2176 for (i = 0; i < chip->num_devs; i++)
2177 snd_via82xx_channel_reset(chip, &chip->devs[i]);
2178 synchronize_irq(chip->irq);
2179 snd_ac97_suspend(chip->ac97);
2180
2181 /* save misc values */
2182 if (chip->chip_type != TYPE_VIA686) {
2183 pci_read_config_byte(chip->pci, VIA8233_SPDIF_CTRL, &chip->spdif_ctrl_saved);
2184 chip->capture_src_saved[0] = inb(chip->port + VIA_REG_CAPTURE_CHANNEL);
2185 chip->capture_src_saved[1] = inb(chip->port + VIA_REG_CAPTURE_CHANNEL + 0x10);
2186 }
2187
2188 pci_disable_device(pci);
2189 pci_save_state(pci);
2190 pci_set_power_state(pci, pci_choose_state(pci, state));
2191 return 0;
2192 }
2193
2194 static int snd_via82xx_resume(struct pci_dev *pci)
2195 {
2196 struct snd_card *card = pci_get_drvdata(pci);
2197 struct via82xx *chip = card->private_data;
2198 int i;
2199
2200 pci_set_power_state(pci, PCI_D0);
2201 pci_restore_state(pci);
2202 if (pci_enable_device(pci) < 0) {
2203 printk(KERN_ERR "via82xx: pci_enable_device failed, "
2204 "disabling device\n");
2205 snd_card_disconnect(card);
2206 return -EIO;
2207 }
2208 pci_set_master(pci);
2209
2210 snd_via82xx_chip_init(chip);
2211
2212 if (chip->chip_type == TYPE_VIA686) {
2213 if (chip->mpu_port_saved)
2214 pci_write_config_dword(chip->pci, 0x18, chip->mpu_port_saved | 0x01);
2215 pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE, chip->legacy_saved);
2216 pci_write_config_byte(chip->pci, VIA_PNP_CONTROL, chip->legacy_cfg_saved);
2217 } else {
2218 pci_write_config_byte(chip->pci, VIA8233_SPDIF_CTRL, chip->spdif_ctrl_saved);
2219 outb(chip->capture_src_saved[0], chip->port + VIA_REG_CAPTURE_CHANNEL);
2220 outb(chip->capture_src_saved[1], chip->port + VIA_REG_CAPTURE_CHANNEL + 0x10);
2221 }
2222
2223 snd_ac97_resume(chip->ac97);
2224
2225 for (i = 0; i < chip->num_devs; i++)
2226 snd_via82xx_channel_reset(chip, &chip->devs[i]);
2227
2228 snd_power_change_state(card, SNDRV_CTL_POWER_D0);
2229 return 0;
2230 }
2231 #endif /* CONFIG_PM */
2232
2233 static int snd_via82xx_free(struct via82xx *chip)
2234 {
2235 unsigned int i;
2236
2237 if (chip->irq < 0)
2238 goto __end_hw;
2239 /* disable interrupts */
2240 for (i = 0; i < chip->num_devs; i++)
2241 snd_via82xx_channel_reset(chip, &chip->devs[i]);
2242 synchronize_irq(chip->irq);
2243 __end_hw:
2244 if (chip->irq >= 0)
2245 free_irq(chip->irq, chip);
2246 release_and_free_resource(chip->mpu_res);
2247 pci_release_regions(chip->pci);
2248
2249 if (chip->chip_type == TYPE_VIA686) {
2250 snd_via686_free_gameport(chip);
2251 pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE, chip->old_legacy);
2252 pci_write_config_byte(chip->pci, VIA_PNP_CONTROL, chip->old_legacy_cfg);
2253 }
2254 pci_disable_device(chip->pci);
2255 kfree(chip);
2256 return 0;
2257 }
2258
2259 static int snd_via82xx_dev_free(struct snd_device *device)
2260 {
2261 struct via82xx *chip = device->device_data;
2262 return snd_via82xx_free(chip);
2263 }
2264
2265 static int __devinit snd_via82xx_create(struct snd_card *card,
2266 struct pci_dev *pci,
2267 int chip_type,
2268 int revision,
2269 unsigned int ac97_clock,
2270 struct via82xx ** r_via)
2271 {
2272 struct via82xx *chip;
2273 int err;
2274 static struct snd_device_ops ops = {
2275 .dev_free = snd_via82xx_dev_free,
2276 };
2277
2278 if ((err = pci_enable_device(pci)) < 0)
2279 return err;
2280
2281 if ((chip = kzalloc(sizeof(*chip), GFP_KERNEL)) == NULL) {
2282 pci_disable_device(pci);
2283 return -ENOMEM;
2284 }
2285
2286 chip->chip_type = chip_type;
2287 chip->revision = revision;
2288
2289 spin_lock_init(&chip->reg_lock);
2290 spin_lock_init(&chip->rates[0].lock);
2291 spin_lock_init(&chip->rates[1].lock);
2292 chip->card = card;
2293 chip->pci = pci;
2294 chip->irq = -1;
2295
2296 pci_read_config_byte(pci, VIA_FUNC_ENABLE, &chip->old_legacy);
2297 pci_read_config_byte(pci, VIA_PNP_CONTROL, &chip->old_legacy_cfg);
2298 pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE,
2299 chip->old_legacy & ~(VIA_FUNC_ENABLE_SB|VIA_FUNC_ENABLE_FM));
2300
2301 if ((err = pci_request_regions(pci, card->driver)) < 0) {
2302 kfree(chip);
2303 pci_disable_device(pci);
2304 return err;
2305 }
2306 chip->port = pci_resource_start(pci, 0);
2307 if (request_irq(pci->irq,
2308 chip_type == TYPE_VIA8233 ?
2309 snd_via8233_interrupt : snd_via686_interrupt,
2310 IRQF_SHARED,
2311 card->driver, chip)) {
2312 snd_printk(KERN_ERR "unable to grab IRQ %d\n", pci->irq);
2313 snd_via82xx_free(chip);
2314 return -EBUSY;
2315 }
2316 chip->irq = pci->irq;
2317 if (ac97_clock >= 8000 && ac97_clock <= 48000)
2318 chip->ac97_clock = ac97_clock;
2319 synchronize_irq(chip->irq);
2320
2321 if ((err = snd_via82xx_chip_init(chip)) < 0) {
2322 snd_via82xx_free(chip);
2323 return err;
2324 }
2325
2326 if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
2327 snd_via82xx_free(chip);
2328 return err;
2329 }
2330
2331 /* The 8233 ac97 controller does not implement the master bit
2332 * in the pci command register. IMHO this is a violation of the PCI spec.
2333 * We call pci_set_master here because it does not hurt. */
2334 pci_set_master(pci);
2335
2336 snd_card_set_dev(card, &pci->dev);
2337
2338 *r_via = chip;
2339 return 0;
2340 }
2341
2342 struct via823x_info {
2343 int revision;
2344 char *name;
2345 int type;
2346 };
2347 static struct via823x_info via823x_cards[] __devinitdata = {
2348 { VIA_REV_PRE_8233, "VIA 8233-Pre", TYPE_VIA8233 },
2349 { VIA_REV_8233C, "VIA 8233C", TYPE_VIA8233 },
2350 { VIA_REV_8233, "VIA 8233", TYPE_VIA8233 },
2351 { VIA_REV_8233A, "VIA 8233A", TYPE_VIA8233A },
2352 { VIA_REV_8235, "VIA 8235", TYPE_VIA8233 },
2353 { VIA_REV_8237, "VIA 8237", TYPE_VIA8233 },
2354 { VIA_REV_8251, "VIA 8251", TYPE_VIA8233 },
2355 };
2356
2357 /*
2358 * auto detection of DXS channel supports.
2359 */
2360
2361 static struct snd_pci_quirk dxs_whitelist[] __devinitdata = {
2362 SND_PCI_QUIRK(0x1005, 0x4710, "Avance Logic Mobo", VIA_DXS_ENABLE),
2363 SND_PCI_QUIRK(0x1019, 0x0996, "ESC Mobo", VIA_DXS_48K),
2364 SND_PCI_QUIRK(0x1019, 0x0a81, "ECS K7VTA3 v8.0", VIA_DXS_NO_VRA),
2365 SND_PCI_QUIRK(0x1019, 0x0a85, "ECS L7VMM2", VIA_DXS_NO_VRA),
2366 SND_PCI_QUIRK(0x1019, 0, "ESC K8", VIA_DXS_SRC),
2367 SND_PCI_QUIRK(0x1019, 0xaa01, "ESC K8T890-A", VIA_DXS_SRC),
2368 SND_PCI_QUIRK(0x1025, 0x0033, "Acer Inspire 1353LM", VIA_DXS_NO_VRA),
2369 SND_PCI_QUIRK(0x1025, 0x0046, "Acer Aspire 1524 WLMi", VIA_DXS_SRC),
2370 SND_PCI_QUIRK(0x1043, 0, "ASUS A7/A8", VIA_DXS_NO_VRA),
2371 SND_PCI_QUIRK(0x1071, 0, "Diverse Notebook", VIA_DXS_NO_VRA),
2372 SND_PCI_QUIRK(0x10cf, 0x118e, "FSC Laptop", VIA_DXS_ENABLE),
2373 SND_PCI_QUIRK(0x1106, 0, "ASRock", VIA_DXS_SRC),
2374 SND_PCI_QUIRK(0x1297, 0xa232, "Shuttle", VIA_DXS_ENABLE),
2375 SND_PCI_QUIRK(0x1297, 0xc160, "Shuttle Sk41G", VIA_DXS_ENABLE),
2376 SND_PCI_QUIRK(0x1458, 0xa002, "Gigabyte GA-7VAXP", VIA_DXS_ENABLE),
2377 SND_PCI_QUIRK(0x1462, 0x3800, "MSI KT266", VIA_DXS_ENABLE),
2378 SND_PCI_QUIRK(0x1462, 0x7120, "MSI KT4V", VIA_DXS_ENABLE),
2379 SND_PCI_QUIRK(0x1462, 0x7142, "MSI K8MM-V", VIA_DXS_ENABLE),
2380 SND_PCI_QUIRK(0x1462, 0, "MSI Mobo", VIA_DXS_SRC),
2381 SND_PCI_QUIRK(0x147b, 0x1401, "ABIT KD7(-RAID)", VIA_DXS_ENABLE),
2382 SND_PCI_QUIRK(0x147b, 0x1411, "ABIT VA-20", VIA_DXS_ENABLE),
2383 SND_PCI_QUIRK(0x147b, 0x1413, "ABIT KV8 Pro", VIA_DXS_ENABLE),
2384 SND_PCI_QUIRK(0x147b, 0x1415, "ABIT AV8", VIA_DXS_NO_VRA),
2385 SND_PCI_QUIRK(0x14ff, 0x0403, "Twinhead mobo", VIA_DXS_ENABLE),
2386 SND_PCI_QUIRK(0x14ff, 0x0408, "Twinhead laptop", VIA_DXS_SRC),
2387 SND_PCI_QUIRK(0x1558, 0x4701, "Clevo D470", VIA_DXS_SRC),
2388 SND_PCI_QUIRK(0x1584, 0x8120, "Diverse Laptop", VIA_DXS_ENABLE),
2389 SND_PCI_QUIRK(0x1584, 0x8123, "Targa/Uniwill", VIA_DXS_NO_VRA),
2390 SND_PCI_QUIRK(0x161f, 0x202b, "Amira Notebook", VIA_DXS_NO_VRA),
2391 SND_PCI_QUIRK(0x161f, 0x2032, "m680x machines", VIA_DXS_48K),
2392 SND_PCI_QUIRK(0x1631, 0xe004, "PB EasyNote 3174", VIA_DXS_ENABLE),
2393 SND_PCI_QUIRK(0x1695, 0x3005, "EPoX EP-8K9A", VIA_DXS_ENABLE),
2394 SND_PCI_QUIRK(0x1695, 0, "EPoX mobo", VIA_DXS_SRC),
2395 SND_PCI_QUIRK(0x16f3, 0, "Jetway K8", VIA_DXS_SRC),
2396 SND_PCI_QUIRK(0x1734, 0, "FSC Laptop", VIA_DXS_SRC),
2397 SND_PCI_QUIRK(0x1849, 0x3059, "ASRock K7VM2", VIA_DXS_NO_VRA),
2398 SND_PCI_QUIRK(0x1849, 0, "ASRock mobo", VIA_DXS_SRC),
2399 SND_PCI_QUIRK(0x1919, 0x200a, "Soltek SL-K8", VIA_DXS_NO_VRA),
2400 SND_PCI_QUIRK(0x4005, 0x4710, "MSI K7T266", VIA_DXS_SRC),
2401 { } /* terminator */
2402 };
2403
2404 static int __devinit check_dxs_list(struct pci_dev *pci, int revision)
2405 {
2406 const struct snd_pci_quirk *w;
2407
2408 w = snd_pci_quirk_lookup(pci, dxs_whitelist);
2409 if (w) {
2410 snd_printdd(KERN_INFO "via82xx: DXS white list for %s found\n",
2411 w->name);
2412 return w->value;
2413 }
2414
2415 /* for newer revision, default to DXS_SRC */
2416 if (revision >= VIA_REV_8235)
2417 return VIA_DXS_SRC;
2418
2419 /*
2420 * not detected, try 48k rate only to be sure.
2421 */
2422 printk(KERN_INFO "via82xx: Assuming DXS channels with 48k fixed sample rate.\n");
2423 printk(KERN_INFO " Please try dxs_support=5 option\n");
2424 printk(KERN_INFO " and report if it works on your machine.\n");
2425 printk(KERN_INFO " For more details, read ALSA-Configuration.txt.\n");
2426 return VIA_DXS_48K;
2427 };
2428
2429 static int __devinit snd_via82xx_probe(struct pci_dev *pci,
2430 const struct pci_device_id *pci_id)
2431 {
2432 struct snd_card *card;
2433 struct via82xx *chip;
2434 unsigned char revision;
2435 int chip_type = 0, card_type;
2436 unsigned int i;
2437 int err;
2438
2439 card = snd_card_new(index, id, THIS_MODULE, 0);
2440 if (card == NULL)
2441 return -ENOMEM;
2442
2443 card_type = pci_id->driver_data;
2444 pci_read_config_byte(pci, PCI_REVISION_ID, &revision);
2445 switch (card_type) {
2446 case TYPE_CARD_VIA686:
2447 strcpy(card->driver, "VIA686A");
2448 sprintf(card->shortname, "VIA 82C686A/B rev%x", revision);
2449 chip_type = TYPE_VIA686;
2450 break;
2451 case TYPE_CARD_VIA8233:
2452 chip_type = TYPE_VIA8233;
2453 sprintf(card->shortname, "VIA 823x rev%x", revision);
2454 for (i = 0; i < ARRAY_SIZE(via823x_cards); i++) {
2455 if (revision == via823x_cards[i].revision) {
2456 chip_type = via823x_cards[i].type;
2457 strcpy(card->shortname, via823x_cards[i].name);
2458 break;
2459 }
2460 }
2461 if (chip_type != TYPE_VIA8233A) {
2462 if (dxs_support == VIA_DXS_AUTO)
2463 dxs_support = check_dxs_list(pci, revision);
2464 /* force to use VIA8233 or 8233A model according to
2465 * dxs_support module option
2466 */
2467 if (dxs_support == VIA_DXS_DISABLE)
2468 chip_type = TYPE_VIA8233A;
2469 else
2470 chip_type = TYPE_VIA8233;
2471 }
2472 if (chip_type == TYPE_VIA8233A)
2473 strcpy(card->driver, "VIA8233A");
2474 else if (revision >= VIA_REV_8237)
2475 strcpy(card->driver, "VIA8237"); /* no slog assignment */
2476 else
2477 strcpy(card->driver, "VIA8233");
2478 break;
2479 default:
2480 snd_printk(KERN_ERR "invalid card type %d\n", card_type);
2481 err = -EINVAL;
2482 goto __error;
2483 }
2484
2485 if ((err = snd_via82xx_create(card, pci, chip_type, revision,
2486 ac97_clock, &chip)) < 0)
2487 goto __error;
2488 card->private_data = chip;
2489 if ((err = snd_via82xx_mixer_new(chip, ac97_quirk)) < 0)
2490 goto __error;
2491
2492 if (chip_type == TYPE_VIA686) {
2493 if ((err = snd_via686_pcm_new(chip)) < 0 ||
2494 (err = snd_via686_init_misc(chip)) < 0)
2495 goto __error;
2496 } else {
2497 if (chip_type == TYPE_VIA8233A) {
2498 if ((err = snd_via8233a_pcm_new(chip)) < 0)
2499 goto __error;
2500 // chip->dxs_fixed = 1; /* FIXME: use 48k for DXS #3? */
2501 } else {
2502 if ((err = snd_via8233_pcm_new(chip)) < 0)
2503 goto __error;
2504 if (dxs_support == VIA_DXS_48K)
2505 chip->dxs_fixed = 1;
2506 else if (dxs_support == VIA_DXS_NO_VRA)
2507 chip->no_vra = 1;
2508 else if (dxs_support == VIA_DXS_SRC) {
2509 chip->no_vra = 1;
2510 chip->dxs_src = 1;
2511 }
2512 }
2513 if ((err = snd_via8233_init_misc(chip)) < 0)
2514 goto __error;
2515 }
2516
2517 /* disable interrupts */
2518 for (i = 0; i < chip->num_devs; i++)
2519 snd_via82xx_channel_reset(chip, &chip->devs[i]);
2520
2521 snprintf(card->longname, sizeof(card->longname),
2522 "%s with %s at %#lx, irq %d", card->shortname,
2523 snd_ac97_get_short_name(chip->ac97), chip->port, chip->irq);
2524
2525 snd_via82xx_proc_init(chip);
2526
2527 if ((err = snd_card_register(card)) < 0) {
2528 snd_card_free(card);
2529 return err;
2530 }
2531 pci_set_drvdata(pci, card);
2532 return 0;
2533
2534 __error:
2535 snd_card_free(card);
2536 return err;
2537 }
2538
2539 static void __devexit snd_via82xx_remove(struct pci_dev *pci)
2540 {
2541 snd_card_free(pci_get_drvdata(pci));
2542 pci_set_drvdata(pci, NULL);
2543 }
2544
2545 static struct pci_driver driver = {
2546 .name = "VIA 82xx Audio",
2547 .id_table = snd_via82xx_ids,
2548 .probe = snd_via82xx_probe,
2549 .remove = __devexit_p(snd_via82xx_remove),
2550 #ifdef CONFIG_PM
2551 .suspend = snd_via82xx_suspend,
2552 .resume = snd_via82xx_resume,
2553 #endif
2554 };
2555
2556 static int __init alsa_card_via82xx_init(void)
2557 {
2558 return pci_register_driver(&driver);
2559 }
2560
2561 static void __exit alsa_card_via82xx_exit(void)
2562 {
2563 pci_unregister_driver(&driver);
2564 }
2565
2566 module_init(alsa_card_via82xx_init)
2567 module_exit(alsa_card_via82xx_exit)
Support for the Chinese Samsung S3C2440 based development boards