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Merge tag 'x86-urgent-2020-08-15' of git://git.kernel.org/pub/scm/linux/kernel/git...
[linux/fpc-iii.git] / sound / pci / via82xx.c
blob154d88ce88131c96863360cf7dcdb926a56984c2
1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 * ALSA driver for VIA VT82xx (South Bridge)
4 *
5 * VT82C686A/B/C, VT8233A/C, VT8235
6 *
7 * Copyright (c) 2000 Jaroslav Kysela <perex@perex.cz>
8 * Tjeerd.Mulder <Tjeerd.Mulder@fujitsu-siemens.com>
9 * 2002 Takashi Iwai <tiwai@suse.de>
10 */
11
12 /*
13 * Changes:
14 *
15 * Dec. 19, 2002 Takashi Iwai <tiwai@suse.de>
16 * - use the DSX channels for the first pcm playback.
17 * (on VIA8233, 8233C and 8235 only)
18 * this will allow you play simultaneously up to 4 streams.
19 * multi-channel playback is assigned to the second device
20 * on these chips.
21 * - support the secondary capture (on VIA8233/C,8235)
22 * - SPDIF support
23 * the DSX3 channel can be used for SPDIF output.
24 * on VIA8233A, this channel is assigned to the second pcm
25 * playback.
26 * the card config of alsa-lib will assign the correct
27 * device for applications.
28 * - clean up the code, separate low-level initialization
29 * routines for each chipset.
30 *
31 * Sep. 26, 2005 Karsten Wiese <annabellesgarden@yahoo.de>
32 * - Optimize position calculation for the 823x chips.
33 */
34
35 #include <linux/io.h>
36 #include <linux/delay.h>
37 #include <linux/interrupt.h>
38 #include <linux/init.h>
39 #include <linux/pci.h>
40 #include <linux/slab.h>
41 #include <linux/gameport.h>
42 #include <linux/module.h>
43 #include <sound/core.h>
44 #include <sound/pcm.h>
45 #include <sound/pcm_params.h>
46 #include <sound/info.h>
47 #include <sound/tlv.h>
48 #include <sound/ac97_codec.h>
49 #include <sound/mpu401.h>
50 #include <sound/initval.h>
51
52 #if 0
53 #define POINTER_DEBUG
54 #endif
55
56 MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
57 MODULE_DESCRIPTION("VIA VT82xx audio");
58 MODULE_LICENSE("GPL");
59 MODULE_SUPPORTED_DEVICE("{{VIA,VT82C686A/B/C,pci},{VIA,VT8233A/C,8235}}");
60
61 #if IS_REACHABLE(CONFIG_GAMEPORT)
62 #define SUPPORT_JOYSTICK 1
63 #endif
64
65 static int index = SNDRV_DEFAULT_IDX1; /* Index 0-MAX */
66 static char *id = SNDRV_DEFAULT_STR1; /* ID for this card */
67 static long mpu_port;
68 #ifdef SUPPORT_JOYSTICK
69 static bool joystick;
70 #endif
71 static int ac97_clock = 48000;
72 static char *ac97_quirk;
73 static int dxs_support;
74 static int dxs_init_volume = 31;
75 static int nodelay;
76
77 module_param(index, int, 0444);
78 MODULE_PARM_DESC(index, "Index value for VIA 82xx bridge.");
79 module_param(id, charp, 0444);
80 MODULE_PARM_DESC(id, "ID string for VIA 82xx bridge.");
81 module_param_hw(mpu_port, long, ioport, 0444);
82 MODULE_PARM_DESC(mpu_port, "MPU-401 port. (VT82C686x only)");
83 #ifdef SUPPORT_JOYSTICK
84 module_param(joystick, bool, 0444);
85 MODULE_PARM_DESC(joystick, "Enable joystick. (VT82C686x only)");
86 #endif
87 module_param(ac97_clock, int, 0444);
88 MODULE_PARM_DESC(ac97_clock, "AC'97 codec clock (default 48000Hz).");
89 module_param(ac97_quirk, charp, 0444);
90 MODULE_PARM_DESC(ac97_quirk, "AC'97 workaround for strange hardware.");
91 module_param(dxs_support, int, 0444);
92 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)");
93 module_param(dxs_init_volume, int, 0644);
94 MODULE_PARM_DESC(dxs_init_volume, "initial DXS volume (0-31)");
95 module_param(nodelay, int, 0444);
96 MODULE_PARM_DESC(nodelay, "Disable 500ms init delay");
97
98 /* just for backward compatibility */
99 static bool enable;
100 module_param(enable, bool, 0444);
101
102
103 /* revision numbers for via686 */
104 #define VIA_REV_686_A 0x10
105 #define VIA_REV_686_B 0x11
106 #define VIA_REV_686_C 0x12
107 #define VIA_REV_686_D 0x13
108 #define VIA_REV_686_E 0x14
109 #define VIA_REV_686_H 0x20
110
111 /* revision numbers for via8233 */
112 #define VIA_REV_PRE_8233 0x10 /* not in market */
113 #define VIA_REV_8233C 0x20 /* 2 rec, 4 pb, 1 multi-pb */
114 #define VIA_REV_8233 0x30 /* 2 rec, 4 pb, 1 multi-pb, spdif */
115 #define VIA_REV_8233A 0x40 /* 1 rec, 1 multi-pb, spdf */
116 #define VIA_REV_8235 0x50 /* 2 rec, 4 pb, 1 multi-pb, spdif */
117 #define VIA_REV_8237 0x60
118 #define VIA_REV_8251 0x70
119
120 /*
121 * Direct registers
122 */
123
124 #define VIAREG(via, x) ((via)->port + VIA_REG_##x)
125 #define VIADEV_REG(viadev, x) ((viadev)->port + VIA_REG_##x)
126
127 /* common offsets */
128 #define VIA_REG_OFFSET_STATUS 0x00 /* byte - channel status */
129 #define VIA_REG_STAT_ACTIVE 0x80 /* RO */
130 #define VIA8233_SHADOW_STAT_ACTIVE 0x08 /* RO */
131 #define VIA_REG_STAT_PAUSED 0x40 /* RO */
132 #define VIA_REG_STAT_TRIGGER_QUEUED 0x08 /* RO */
133 #define VIA_REG_STAT_STOPPED 0x04 /* RWC */
134 #define VIA_REG_STAT_EOL 0x02 /* RWC */
135 #define VIA_REG_STAT_FLAG 0x01 /* RWC */
136 #define VIA_REG_OFFSET_CONTROL 0x01 /* byte - channel control */
137 #define VIA_REG_CTRL_START 0x80 /* WO */
138 #define VIA_REG_CTRL_TERMINATE 0x40 /* WO */
139 #define VIA_REG_CTRL_AUTOSTART 0x20
140 #define VIA_REG_CTRL_PAUSE 0x08 /* RW */
141 #define VIA_REG_CTRL_INT_STOP 0x04
142 #define VIA_REG_CTRL_INT_EOL 0x02
143 #define VIA_REG_CTRL_INT_FLAG 0x01
144 #define VIA_REG_CTRL_RESET 0x01 /* RW - probably reset? undocumented */
145 #define VIA_REG_CTRL_INT (VIA_REG_CTRL_INT_FLAG | VIA_REG_CTRL_INT_EOL | VIA_REG_CTRL_AUTOSTART)
146 #define VIA_REG_OFFSET_TYPE 0x02 /* byte - channel type (686 only) */
147 #define VIA_REG_TYPE_AUTOSTART 0x80 /* RW - autostart at EOL */
148 #define VIA_REG_TYPE_16BIT 0x20 /* RW */
149 #define VIA_REG_TYPE_STEREO 0x10 /* RW */
150 #define VIA_REG_TYPE_INT_LLINE 0x00
151 #define VIA_REG_TYPE_INT_LSAMPLE 0x04
152 #define VIA_REG_TYPE_INT_LESSONE 0x08
153 #define VIA_REG_TYPE_INT_MASK 0x0c
154 #define VIA_REG_TYPE_INT_EOL 0x02
155 #define VIA_REG_TYPE_INT_FLAG 0x01
156 #define VIA_REG_OFFSET_TABLE_PTR 0x04 /* dword - channel table pointer */
157 #define VIA_REG_OFFSET_CURR_PTR 0x04 /* dword - channel current pointer */
158 #define VIA_REG_OFFSET_STOP_IDX 0x08 /* dword - stop index, channel type, sample rate */
159 #define VIA8233_REG_TYPE_16BIT 0x00200000 /* RW */
160 #define VIA8233_REG_TYPE_STEREO 0x00100000 /* RW */
161 #define VIA_REG_OFFSET_CURR_COUNT 0x0c /* dword - channel current count (24 bit) */
162 #define VIA_REG_OFFSET_CURR_INDEX 0x0f /* byte - channel current index (for via8233 only) */
163
164 #define DEFINE_VIA_REGSET(name,val) \
165 enum {\
166 VIA_REG_##name##_STATUS = (val),\
167 VIA_REG_##name##_CONTROL = (val) + 0x01,\
168 VIA_REG_##name##_TYPE = (val) + 0x02,\
169 VIA_REG_##name##_TABLE_PTR = (val) + 0x04,\
170 VIA_REG_##name##_CURR_PTR = (val) + 0x04,\
171 VIA_REG_##name##_STOP_IDX = (val) + 0x08,\
172 VIA_REG_##name##_CURR_COUNT = (val) + 0x0c,\
173 }
174
175 /* playback block */
176 DEFINE_VIA_REGSET(PLAYBACK, 0x00);
177 DEFINE_VIA_REGSET(CAPTURE, 0x10);
178 DEFINE_VIA_REGSET(FM, 0x20);
179
180 /* AC'97 */
181 #define VIA_REG_AC97 0x80 /* dword */
182 #define VIA_REG_AC97_CODEC_ID_MASK (3<<30)
183 #define VIA_REG_AC97_CODEC_ID_SHIFT 30
184 #define VIA_REG_AC97_CODEC_ID_PRIMARY 0x00
185 #define VIA_REG_AC97_CODEC_ID_SECONDARY 0x01
186 #define VIA_REG_AC97_SECONDARY_VALID (1<<27)
187 #define VIA_REG_AC97_PRIMARY_VALID (1<<25)
188 #define VIA_REG_AC97_BUSY (1<<24)
189 #define VIA_REG_AC97_READ (1<<23)
190 #define VIA_REG_AC97_CMD_SHIFT 16
191 #define VIA_REG_AC97_CMD_MASK 0x7e
192 #define VIA_REG_AC97_DATA_SHIFT 0
193 #define VIA_REG_AC97_DATA_MASK 0xffff
194
195 #define VIA_REG_SGD_SHADOW 0x84 /* dword */
196 /* via686 */
197 #define VIA_REG_SGD_STAT_PB_FLAG (1<<0)
198 #define VIA_REG_SGD_STAT_CP_FLAG (1<<1)
199 #define VIA_REG_SGD_STAT_FM_FLAG (1<<2)
200 #define VIA_REG_SGD_STAT_PB_EOL (1<<4)
201 #define VIA_REG_SGD_STAT_CP_EOL (1<<5)
202 #define VIA_REG_SGD_STAT_FM_EOL (1<<6)
203 #define VIA_REG_SGD_STAT_PB_STOP (1<<8)
204 #define VIA_REG_SGD_STAT_CP_STOP (1<<9)
205 #define VIA_REG_SGD_STAT_FM_STOP (1<<10)
206 #define VIA_REG_SGD_STAT_PB_ACTIVE (1<<12)
207 #define VIA_REG_SGD_STAT_CP_ACTIVE (1<<13)
208 #define VIA_REG_SGD_STAT_FM_ACTIVE (1<<14)
209 /* via8233 */
210 #define VIA8233_REG_SGD_STAT_FLAG (1<<0)
211 #define VIA8233_REG_SGD_STAT_EOL (1<<1)
212 #define VIA8233_REG_SGD_STAT_STOP (1<<2)
213 #define VIA8233_REG_SGD_STAT_ACTIVE (1<<3)
214 #define VIA8233_INTR_MASK(chan) ((VIA8233_REG_SGD_STAT_FLAG|VIA8233_REG_SGD_STAT_EOL) << ((chan) * 4))
215 #define VIA8233_REG_SGD_CHAN_SDX 0
216 #define VIA8233_REG_SGD_CHAN_MULTI 4
217 #define VIA8233_REG_SGD_CHAN_REC 6
218 #define VIA8233_REG_SGD_CHAN_REC1 7
219
220 #define VIA_REG_GPI_STATUS 0x88
221 #define VIA_REG_GPI_INTR 0x8c
222
223 /* multi-channel and capture registers for via8233 */
224 DEFINE_VIA_REGSET(MULTPLAY, 0x40);
225 DEFINE_VIA_REGSET(CAPTURE_8233, 0x60);
226
227 /* via8233-specific registers */
228 #define VIA_REG_OFS_PLAYBACK_VOLUME_L 0x02 /* byte */
229 #define VIA_REG_OFS_PLAYBACK_VOLUME_R 0x03 /* byte */
230 #define VIA_REG_OFS_MULTPLAY_FORMAT 0x02 /* byte - format and channels */
231 #define VIA_REG_MULTPLAY_FMT_8BIT 0x00
232 #define VIA_REG_MULTPLAY_FMT_16BIT 0x80
233 #define VIA_REG_MULTPLAY_FMT_CH_MASK 0x70 /* # channels << 4 (valid = 1,2,4,6) */
234 #define VIA_REG_OFS_CAPTURE_FIFO 0x02 /* byte - bit 6 = fifo enable */
235 #define VIA_REG_CAPTURE_FIFO_ENABLE 0x40
236
237 #define VIA_DXS_MAX_VOLUME 31 /* max. volume (attenuation) of reg 0x32/33 */
238
239 #define VIA_REG_CAPTURE_CHANNEL 0x63 /* byte - input select */
240 #define VIA_REG_CAPTURE_CHANNEL_MIC 0x4
241 #define VIA_REG_CAPTURE_CHANNEL_LINE 0
242 #define VIA_REG_CAPTURE_SELECT_CODEC 0x03 /* recording source codec (0 = primary) */
243
244 #define VIA_TBL_BIT_FLAG 0x40000000
245 #define VIA_TBL_BIT_EOL 0x80000000
246
247 /* pci space */
248 #define VIA_ACLINK_STAT 0x40
249 #define VIA_ACLINK_C11_READY 0x20
250 #define VIA_ACLINK_C10_READY 0x10
251 #define VIA_ACLINK_C01_READY 0x04 /* secondary codec ready */
252 #define VIA_ACLINK_LOWPOWER 0x02 /* low-power state */
253 #define VIA_ACLINK_C00_READY 0x01 /* primary codec ready */
254 #define VIA_ACLINK_CTRL 0x41
255 #define VIA_ACLINK_CTRL_ENABLE 0x80 /* 0: disable, 1: enable */
256 #define VIA_ACLINK_CTRL_RESET 0x40 /* 0: assert, 1: de-assert */
257 #define VIA_ACLINK_CTRL_SYNC 0x20 /* 0: release SYNC, 1: force SYNC hi */
258 #define VIA_ACLINK_CTRL_SDO 0x10 /* 0: release SDO, 1: force SDO hi */
259 #define VIA_ACLINK_CTRL_VRA 0x08 /* 0: disable VRA, 1: enable VRA */
260 #define VIA_ACLINK_CTRL_PCM 0x04 /* 0: disable PCM, 1: enable PCM */
261 #define VIA_ACLINK_CTRL_FM 0x02 /* via686 only */
262 #define VIA_ACLINK_CTRL_SB 0x01 /* via686 only */
263 #define VIA_ACLINK_CTRL_INIT (VIA_ACLINK_CTRL_ENABLE|\
264 VIA_ACLINK_CTRL_RESET|\
265 VIA_ACLINK_CTRL_PCM|\
266 VIA_ACLINK_CTRL_VRA)
267 #define VIA_FUNC_ENABLE 0x42
268 #define VIA_FUNC_MIDI_PNP 0x80 /* FIXME: it's 0x40 in the datasheet! */
269 #define VIA_FUNC_MIDI_IRQMASK 0x40 /* FIXME: not documented! */
270 #define VIA_FUNC_RX2C_WRITE 0x20
271 #define VIA_FUNC_SB_FIFO_EMPTY 0x10
272 #define VIA_FUNC_ENABLE_GAME 0x08
273 #define VIA_FUNC_ENABLE_FM 0x04
274 #define VIA_FUNC_ENABLE_MIDI 0x02
275 #define VIA_FUNC_ENABLE_SB 0x01
276 #define VIA_PNP_CONTROL 0x43
277 #define VIA_FM_NMI_CTRL 0x48
278 #define VIA8233_VOLCHG_CTRL 0x48
279 #define VIA8233_SPDIF_CTRL 0x49
280 #define VIA8233_SPDIF_DX3 0x08
281 #define VIA8233_SPDIF_SLOT_MASK 0x03
282 #define VIA8233_SPDIF_SLOT_1011 0x00
283 #define VIA8233_SPDIF_SLOT_34 0x01
284 #define VIA8233_SPDIF_SLOT_78 0x02
285 #define VIA8233_SPDIF_SLOT_69 0x03
286
287 /*
288 */
289
290 #define VIA_DXS_AUTO 0
291 #define VIA_DXS_ENABLE 1
292 #define VIA_DXS_DISABLE 2
293 #define VIA_DXS_48K 3
294 #define VIA_DXS_NO_VRA 4
295 #define VIA_DXS_SRC 5
296
297
298 /*
299 * pcm stream
300 */
301
302 struct snd_via_sg_table {
303 unsigned int offset;
304 unsigned int size;
305 } ;
306
307 #define VIA_TABLE_SIZE 255
308 #define VIA_MAX_BUFSIZE (1<<24)
309
310 struct viadev {
311 unsigned int reg_offset;
312 unsigned long port;
313 int direction; /* playback = 0, capture = 1 */
314 struct snd_pcm_substream *substream;
315 int running;
316 unsigned int tbl_entries; /* # descriptors */
317 struct snd_dma_buffer table;
318 struct snd_via_sg_table *idx_table;
319 /* for recovery from the unexpected pointer */
320 unsigned int lastpos;
321 unsigned int fragsize;
322 unsigned int bufsize;
323 unsigned int bufsize2;
324 int hwptr_done; /* processed frame position in the buffer */
325 int in_interrupt;
326 int shadow_shift;
327 };
328
329
330 enum { TYPE_CARD_VIA686 = 1, TYPE_CARD_VIA8233 };
331 enum { TYPE_VIA686, TYPE_VIA8233, TYPE_VIA8233A };
332
333 #define VIA_MAX_DEVS 7 /* 4 playback, 1 multi, 2 capture */
334
335 struct via_rate_lock {
336 spinlock_t lock;
337 int rate;
338 int used;
339 };
340
341 struct via82xx {
342 int irq;
343
344 unsigned long port;
345 struct resource *mpu_res;
346 int chip_type;
347 unsigned char revision;
348
349 unsigned char old_legacy;
350 unsigned char old_legacy_cfg;
351 #ifdef CONFIG_PM_SLEEP
352 unsigned char legacy_saved;
353 unsigned char legacy_cfg_saved;
354 unsigned char spdif_ctrl_saved;
355 unsigned char capture_src_saved[2];
356 unsigned int mpu_port_saved;
357 #endif
358
359 unsigned char playback_volume[4][2]; /* for VIA8233/C/8235; default = 0 */
360 unsigned char playback_volume_c[2]; /* for VIA8233/C/8235; default = 0 */
361
362 unsigned int intr_mask; /* SGD_SHADOW mask to check interrupts */
363
364 struct pci_dev *pci;
365 struct snd_card *card;
366
367 unsigned int num_devs;
368 unsigned int playback_devno, multi_devno, capture_devno;
369 struct viadev devs[VIA_MAX_DEVS];
370 struct via_rate_lock rates[2]; /* playback and capture */
371 unsigned int dxs_fixed: 1; /* DXS channel accepts only 48kHz */
372 unsigned int no_vra: 1; /* no need to set VRA on DXS channels */
373 unsigned int dxs_src: 1; /* use full SRC capabilities of DXS */
374 unsigned int spdif_on: 1; /* only spdif rates work to external DACs */
375
376 struct snd_pcm *pcms[2];
377 struct snd_rawmidi *rmidi;
378 struct snd_kcontrol *dxs_controls[4];
379
380 struct snd_ac97_bus *ac97_bus;
381 struct snd_ac97 *ac97;
382 unsigned int ac97_clock;
383 unsigned int ac97_secondary; /* secondary AC'97 codec is present */
384
385 spinlock_t reg_lock;
386 struct snd_info_entry *proc_entry;
387
388 #ifdef SUPPORT_JOYSTICK
389 struct gameport *gameport;
390 #endif
391 };
392
393 static const struct pci_device_id snd_via82xx_ids[] = {
394 /* 0x1106, 0x3058 */
395 { PCI_VDEVICE(VIA, PCI_DEVICE_ID_VIA_82C686_5), TYPE_CARD_VIA686, }, /* 686A */
396 /* 0x1106, 0x3059 */
397 { PCI_VDEVICE(VIA, PCI_DEVICE_ID_VIA_8233_5), TYPE_CARD_VIA8233, }, /* VT8233 */
398 { 0, }
399 };
400
401 MODULE_DEVICE_TABLE(pci, snd_via82xx_ids);
402
403 /*
404 */
405
406 /*
407 * allocate and initialize the descriptor buffers
408 * periods = number of periods
409 * fragsize = period size in bytes
410 */
411 static int build_via_table(struct viadev *dev, struct snd_pcm_substream *substream,
412 struct pci_dev *pci,
413 unsigned int periods, unsigned int fragsize)
414 {
415 unsigned int i, idx, ofs, rest;
416 struct via82xx *chip = snd_pcm_substream_chip(substream);
417 __le32 *pgtbl;
418
419 if (dev->table.area == NULL) {
420 /* the start of each lists must be aligned to 8 bytes,
421 * but the kernel pages are much bigger, so we don't care
422 */
423 if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, &chip->pci->dev,
424 PAGE_ALIGN(VIA_TABLE_SIZE * 2 * 8),
425 &dev->table) < 0)
426 return -ENOMEM;
427 }
428 if (! dev->idx_table) {
429 dev->idx_table = kmalloc_array(VIA_TABLE_SIZE,
430 sizeof(*dev->idx_table),
431 GFP_KERNEL);
432 if (! dev->idx_table)
433 return -ENOMEM;
434 }
435
436 /* fill the entries */
437 idx = 0;
438 ofs = 0;
439 pgtbl = (__le32 *)dev->table.area;
440 for (i = 0; i < periods; i++) {
441 rest = fragsize;
442 /* fill descriptors for a period.
443 * a period can be split to several descriptors if it's
444 * over page boundary.
445 */
446 do {
447 unsigned int r;
448 unsigned int flag;
449 unsigned int addr;
450
451 if (idx >= VIA_TABLE_SIZE) {
452 dev_err(&pci->dev, "too much table size!\n");
453 return -EINVAL;
454 }
455 addr = snd_pcm_sgbuf_get_addr(substream, ofs);
456 pgtbl[idx << 1] = cpu_to_le32(addr);
457 r = snd_pcm_sgbuf_get_chunk_size(substream, ofs, rest);
458 rest -= r;
459 if (! rest) {
460 if (i == periods - 1)
461 flag = VIA_TBL_BIT_EOL; /* buffer boundary */
462 else
463 flag = VIA_TBL_BIT_FLAG; /* period boundary */
464 } else
465 flag = 0; /* period continues to the next */
466 /*
467 dev_dbg(&pci->dev,
468 "tbl %d: at %d size %d (rest %d)\n",
469 idx, ofs, r, rest);
470 */
471 pgtbl[(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 dev_err(chip->card->dev, "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 __always_unused int err;
548 err = snd_via82xx_codec_ready(chip, ac97->num);
549 /* here we need to wait fairly for long time.. */
550 if (!nodelay)
551 msleep(500);
552 }
553
554 static void snd_via82xx_codec_write(struct snd_ac97 *ac97,
555 unsigned short reg,
556 unsigned short val)
557 {
558 struct via82xx *chip = ac97->private_data;
559 unsigned int xval;
560
561 xval = !ac97->num ? VIA_REG_AC97_CODEC_ID_PRIMARY : VIA_REG_AC97_CODEC_ID_SECONDARY;
562 xval <<= VIA_REG_AC97_CODEC_ID_SHIFT;
563 xval |= reg << VIA_REG_AC97_CMD_SHIFT;
564 xval |= val << VIA_REG_AC97_DATA_SHIFT;
565 snd_via82xx_codec_xwrite(chip, xval);
566 snd_via82xx_codec_ready(chip, ac97->num);
567 }
568
569 static unsigned short snd_via82xx_codec_read(struct snd_ac97 *ac97, unsigned short reg)
570 {
571 struct via82xx *chip = ac97->private_data;
572 unsigned int xval, val = 0xffff;
573 int again = 0;
574
575 xval = ac97->num << VIA_REG_AC97_CODEC_ID_SHIFT;
576 xval |= ac97->num ? VIA_REG_AC97_SECONDARY_VALID : VIA_REG_AC97_PRIMARY_VALID;
577 xval |= VIA_REG_AC97_READ;
578 xval |= (reg & 0x7f) << VIA_REG_AC97_CMD_SHIFT;
579 while (1) {
580 if (again++ > 3) {
581 dev_err(chip->card->dev,
582 "codec_read: codec %i is not valid [0x%x]\n",
583 ac97->num, snd_via82xx_codec_xread(chip));
584 return 0xffff;
585 }
586 snd_via82xx_codec_xwrite(chip, xval);
587 udelay (20);
588 if (snd_via82xx_codec_valid(chip, ac97->num) >= 0) {
589 udelay(25);
590 val = snd_via82xx_codec_xread(chip);
591 break;
592 }
593 }
594 return val & 0xffff;
595 }
596
597 static void snd_via82xx_channel_reset(struct via82xx *chip, struct viadev *viadev)
598 {
599 outb(VIA_REG_CTRL_PAUSE | VIA_REG_CTRL_TERMINATE | VIA_REG_CTRL_RESET,
600 VIADEV_REG(viadev, OFFSET_CONTROL));
601 inb(VIADEV_REG(viadev, OFFSET_CONTROL));
602 udelay(50);
603 /* disable interrupts */
604 outb(0x00, VIADEV_REG(viadev, OFFSET_CONTROL));
605 /* clear interrupts */
606 outb(0x03, VIADEV_REG(viadev, OFFSET_STATUS));
607 outb(0x00, VIADEV_REG(viadev, OFFSET_TYPE)); /* for via686 */
608 // outl(0, VIADEV_REG(viadev, OFFSET_CURR_PTR));
609 viadev->lastpos = 0;
610 viadev->hwptr_done = 0;
611 }
612
613
614 /*
615 * Interrupt handler
616 * Used for 686 and 8233A
617 */
618 static irqreturn_t snd_via686_interrupt(int irq, void *dev_id)
619 {
620 struct via82xx *chip = dev_id;
621 unsigned int status;
622 unsigned int i;
623
624 status = inl(VIAREG(chip, SGD_SHADOW));
625 if (! (status & chip->intr_mask)) {
626 if (chip->rmidi)
627 /* check mpu401 interrupt */
628 return snd_mpu401_uart_interrupt(irq, chip->rmidi->private_data);
629 return IRQ_NONE;
630 }
631
632 /* check status for each stream */
633 spin_lock(&chip->reg_lock);
634 for (i = 0; i < chip->num_devs; i++) {
635 struct viadev *viadev = &chip->devs[i];
636 unsigned char c_status = inb(VIADEV_REG(viadev, OFFSET_STATUS));
637 if (! (c_status & (VIA_REG_STAT_EOL|VIA_REG_STAT_FLAG|VIA_REG_STAT_STOPPED)))
638 continue;
639 if (viadev->substream && viadev->running) {
640 /*
641 * Update hwptr_done based on 'period elapsed'
642 * interrupts. We'll use it, when the chip returns 0
643 * for OFFSET_CURR_COUNT.
644 */
645 if (c_status & VIA_REG_STAT_EOL)
646 viadev->hwptr_done = 0;
647 else
648 viadev->hwptr_done += viadev->fragsize;
649 viadev->in_interrupt = c_status;
650 spin_unlock(&chip->reg_lock);
651 snd_pcm_period_elapsed(viadev->substream);
652 spin_lock(&chip->reg_lock);
653 viadev->in_interrupt = 0;
654 }
655 outb(c_status, VIADEV_REG(viadev, OFFSET_STATUS)); /* ack */
656 }
657 spin_unlock(&chip->reg_lock);
658 return IRQ_HANDLED;
659 }
660
661 /*
662 * Interrupt handler
663 */
664 static irqreturn_t snd_via8233_interrupt(int irq, void *dev_id)
665 {
666 struct via82xx *chip = dev_id;
667 unsigned int status;
668 unsigned int i;
669 int irqreturn = 0;
670
671 /* check status for each stream */
672 spin_lock(&chip->reg_lock);
673 status = inl(VIAREG(chip, SGD_SHADOW));
674
675 for (i = 0; i < chip->num_devs; i++) {
676 struct viadev *viadev = &chip->devs[i];
677 struct snd_pcm_substream *substream;
678 unsigned char c_status, shadow_status;
679
680 shadow_status = (status >> viadev->shadow_shift) &
681 (VIA8233_SHADOW_STAT_ACTIVE|VIA_REG_STAT_EOL|
682 VIA_REG_STAT_FLAG);
683 c_status = shadow_status & (VIA_REG_STAT_EOL|VIA_REG_STAT_FLAG);
684 if (!c_status)
685 continue;
686
687 substream = viadev->substream;
688 if (substream && viadev->running) {
689 /*
690 * Update hwptr_done based on 'period elapsed'
691 * interrupts. We'll use it, when the chip returns 0
692 * for OFFSET_CURR_COUNT.
693 */
694 if (c_status & VIA_REG_STAT_EOL)
695 viadev->hwptr_done = 0;
696 else
697 viadev->hwptr_done += viadev->fragsize;
698 viadev->in_interrupt = c_status;
699 if (shadow_status & VIA8233_SHADOW_STAT_ACTIVE)
700 viadev->in_interrupt |= VIA_REG_STAT_ACTIVE;
701 spin_unlock(&chip->reg_lock);
702
703 snd_pcm_period_elapsed(substream);
704
705 spin_lock(&chip->reg_lock);
706 viadev->in_interrupt = 0;
707 }
708 outb(c_status, VIADEV_REG(viadev, OFFSET_STATUS)); /* ack */
709 irqreturn = 1;
710 }
711 spin_unlock(&chip->reg_lock);
712 return IRQ_RETVAL(irqreturn);
713 }
714
715 /*
716 * PCM callbacks
717 */
718
719 /*
720 * trigger callback
721 */
722 static int snd_via82xx_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
723 {
724 struct via82xx *chip = snd_pcm_substream_chip(substream);
725 struct viadev *viadev = substream->runtime->private_data;
726 unsigned char val;
727
728 if (chip->chip_type != TYPE_VIA686)
729 val = VIA_REG_CTRL_INT;
730 else
731 val = 0;
732 switch (cmd) {
733 case SNDRV_PCM_TRIGGER_START:
734 case SNDRV_PCM_TRIGGER_RESUME:
735 val |= VIA_REG_CTRL_START;
736 viadev->running = 1;
737 break;
738 case SNDRV_PCM_TRIGGER_STOP:
739 case SNDRV_PCM_TRIGGER_SUSPEND:
740 val = VIA_REG_CTRL_TERMINATE;
741 viadev->running = 0;
742 break;
743 case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
744 val |= VIA_REG_CTRL_PAUSE;
745 viadev->running = 0;
746 break;
747 case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
748 viadev->running = 1;
749 break;
750 default:
751 return -EINVAL;
752 }
753 outb(val, VIADEV_REG(viadev, OFFSET_CONTROL));
754 if (cmd == SNDRV_PCM_TRIGGER_STOP)
755 snd_via82xx_channel_reset(chip, viadev);
756 return 0;
757 }
758
759
760 /*
761 * pointer callbacks
762 */
763
764 /*
765 * calculate the linear position at the given sg-buffer index and the rest count
766 */
767
768 #define check_invalid_pos(viadev,pos) \
769 ((pos) < viadev->lastpos && ((pos) >= viadev->bufsize2 ||\
770 viadev->lastpos < viadev->bufsize2))
771
772 static inline unsigned int calc_linear_pos(struct via82xx *chip,
773 struct viadev *viadev,
774 unsigned int idx,
775 unsigned int count)
776 {
777 unsigned int size, base, res;
778
779 size = viadev->idx_table[idx].size;
780 base = viadev->idx_table[idx].offset;
781 res = base + size - count;
782 if (res >= viadev->bufsize)
783 res -= viadev->bufsize;
784
785 /* check the validity of the calculated position */
786 if (size < count) {
787 dev_dbg(chip->card->dev,
788 "invalid via82xx_cur_ptr (size = %d, count = %d)\n",
789 (int)size, (int)count);
790 res = viadev->lastpos;
791 } else {
792 if (! count) {
793 /* Some mobos report count = 0 on the DMA boundary,
794 * i.e. count = size indeed.
795 * Let's check whether this step is above the expected size.
796 */
797 int delta = res - viadev->lastpos;
798 if (delta < 0)
799 delta += viadev->bufsize;
800 if ((unsigned int)delta > viadev->fragsize)
801 res = base;
802 }
803 if (check_invalid_pos(viadev, res)) {
804 #ifdef POINTER_DEBUG
805 dev_dbg(chip->card->dev,
806 "fail: idx = %i/%i, lastpos = 0x%x, bufsize2 = 0x%x, offsize = 0x%x, size = 0x%x, count = 0x%x\n",
807 idx, viadev->tbl_entries,
808 viadev->lastpos, viadev->bufsize2,
809 viadev->idx_table[idx].offset,
810 viadev->idx_table[idx].size, count);
811 #endif
812 /* count register returns full size when end of buffer is reached */
813 res = base + size;
814 if (check_invalid_pos(viadev, res)) {
815 dev_dbg(chip->card->dev,
816 "invalid via82xx_cur_ptr (2), using last valid pointer\n");
817 res = viadev->lastpos;
818 }
819 }
820 }
821 return res;
822 }
823
824 /*
825 * get the current pointer on via686
826 */
827 static snd_pcm_uframes_t snd_via686_pcm_pointer(struct snd_pcm_substream *substream)
828 {
829 struct via82xx *chip = snd_pcm_substream_chip(substream);
830 struct viadev *viadev = substream->runtime->private_data;
831 unsigned int idx, ptr, count, res;
832
833 if (snd_BUG_ON(!viadev->tbl_entries))
834 return 0;
835 if (!(inb(VIADEV_REG(viadev, OFFSET_STATUS)) & VIA_REG_STAT_ACTIVE))
836 return 0;
837
838 spin_lock(&chip->reg_lock);
839 count = inl(VIADEV_REG(viadev, OFFSET_CURR_COUNT)) & 0xffffff;
840 /* The via686a does not have the current index register,
841 * so we need to calculate the index from CURR_PTR.
842 */
843 ptr = inl(VIADEV_REG(viadev, OFFSET_CURR_PTR));
844 if (ptr <= (unsigned int)viadev->table.addr)
845 idx = 0;
846 else /* CURR_PTR holds the address + 8 */
847 idx = ((ptr - (unsigned int)viadev->table.addr) / 8 - 1) % viadev->tbl_entries;
848 res = calc_linear_pos(chip, viadev, idx, count);
849 viadev->lastpos = res; /* remember the last position */
850 spin_unlock(&chip->reg_lock);
851
852 return bytes_to_frames(substream->runtime, res);
853 }
854
855 /*
856 * get the current pointer on via823x
857 */
858 static snd_pcm_uframes_t snd_via8233_pcm_pointer(struct snd_pcm_substream *substream)
859 {
860 struct via82xx *chip = snd_pcm_substream_chip(substream);
861 struct viadev *viadev = substream->runtime->private_data;
862 unsigned int idx, count, res;
863 int status;
864
865 if (snd_BUG_ON(!viadev->tbl_entries))
866 return 0;
867
868 spin_lock(&chip->reg_lock);
869 count = inl(VIADEV_REG(viadev, OFFSET_CURR_COUNT));
870 status = viadev->in_interrupt;
871 if (!status)
872 status = inb(VIADEV_REG(viadev, OFFSET_STATUS));
873
874 /* An apparent bug in the 8251 is worked around by sending a
875 * REG_CTRL_START. */
876 if (chip->revision == VIA_REV_8251 && (status & VIA_REG_STAT_EOL))
877 snd_via82xx_pcm_trigger(substream, SNDRV_PCM_TRIGGER_START);
878
879 if (!(status & VIA_REG_STAT_ACTIVE)) {
880 res = 0;
881 goto unlock;
882 }
883 if (count & 0xffffff) {
884 idx = count >> 24;
885 if (idx >= viadev->tbl_entries) {
886 #ifdef POINTER_DEBUG
887 dev_dbg(chip->card->dev,
888 "fail: invalid idx = %i/%i\n", idx,
889 viadev->tbl_entries);
890 #endif
891 res = viadev->lastpos;
892 } else {
893 count &= 0xffffff;
894 res = calc_linear_pos(chip, viadev, idx, count);
895 }
896 } else {
897 res = viadev->hwptr_done;
898 if (!viadev->in_interrupt) {
899 if (status & VIA_REG_STAT_EOL) {
900 res = 0;
901 } else
902 if (status & VIA_REG_STAT_FLAG) {
903 res += viadev->fragsize;
904 }
905 }
906 }
907 unlock:
908 viadev->lastpos = res;
909 spin_unlock(&chip->reg_lock);
910
911 return bytes_to_frames(substream->runtime, res);
912 }
913
914
915 /*
916 * hw_params callback:
917 * allocate the buffer and build up the buffer description table
918 */
919 static int snd_via82xx_hw_params(struct snd_pcm_substream *substream,
920 struct snd_pcm_hw_params *hw_params)
921 {
922 struct via82xx *chip = snd_pcm_substream_chip(substream);
923 struct viadev *viadev = substream->runtime->private_data;
924
925 return build_via_table(viadev, substream, chip->pci,
926 params_periods(hw_params),
927 params_period_bytes(hw_params));
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 return 0;
941 }
942
943
944 /*
945 * set up the table pointer
946 */
947 static void snd_via82xx_set_table_ptr(struct via82xx *chip, struct viadev *viadev)
948 {
949 snd_via82xx_codec_ready(chip, 0);
950 outl((u32)viadev->table.addr, VIADEV_REG(viadev, OFFSET_TABLE_PTR));
951 udelay(20);
952 snd_via82xx_codec_ready(chip, 0);
953 }
954
955 /*
956 * prepare callback for playback and capture on via686
957 */
958 static void via686_setup_format(struct via82xx *chip, struct viadev *viadev,
959 struct snd_pcm_runtime *runtime)
960 {
961 snd_via82xx_channel_reset(chip, viadev);
962 /* this must be set after channel_reset */
963 snd_via82xx_set_table_ptr(chip, viadev);
964 outb(VIA_REG_TYPE_AUTOSTART |
965 (runtime->format == SNDRV_PCM_FORMAT_S16_LE ? VIA_REG_TYPE_16BIT : 0) |
966 (runtime->channels > 1 ? VIA_REG_TYPE_STEREO : 0) |
967 ((viadev->reg_offset & 0x10) == 0 ? VIA_REG_TYPE_INT_LSAMPLE : 0) |
968 VIA_REG_TYPE_INT_EOL |
969 VIA_REG_TYPE_INT_FLAG, VIADEV_REG(viadev, OFFSET_TYPE));
970 }
971
972 static int snd_via686_playback_prepare(struct snd_pcm_substream *substream)
973 {
974 struct via82xx *chip = snd_pcm_substream_chip(substream);
975 struct viadev *viadev = substream->runtime->private_data;
976 struct snd_pcm_runtime *runtime = substream->runtime;
977
978 snd_ac97_set_rate(chip->ac97, AC97_PCM_FRONT_DAC_RATE, runtime->rate);
979 snd_ac97_set_rate(chip->ac97, AC97_SPDIF, runtime->rate);
980 via686_setup_format(chip, viadev, runtime);
981 return 0;
982 }
983
984 static int snd_via686_capture_prepare(struct snd_pcm_substream *substream)
985 {
986 struct via82xx *chip = snd_pcm_substream_chip(substream);
987 struct viadev *viadev = substream->runtime->private_data;
988 struct snd_pcm_runtime *runtime = substream->runtime;
989
990 snd_ac97_set_rate(chip->ac97, AC97_PCM_LR_ADC_RATE, runtime->rate);
991 via686_setup_format(chip, viadev, runtime);
992 return 0;
993 }
994
995 /*
996 * lock the current rate
997 */
998 static int via_lock_rate(struct via_rate_lock *rec, int rate)
999 {
1000 int changed = 0;
1001
1002 spin_lock_irq(&rec->lock);
1003 if (rec->rate != rate) {
1004 if (rec->rate && rec->used > 1) /* already set */
1005 changed = -EINVAL;
1006 else {
1007 rec->rate = rate;
1008 changed = 1;
1009 }
1010 }
1011 spin_unlock_irq(&rec->lock);
1012 return changed;
1013 }
1014
1015 /*
1016 * prepare callback for DSX playback on via823x
1017 */
1018 static int snd_via8233_playback_prepare(struct snd_pcm_substream *substream)
1019 {
1020 struct via82xx *chip = snd_pcm_substream_chip(substream);
1021 struct viadev *viadev = substream->runtime->private_data;
1022 struct snd_pcm_runtime *runtime = substream->runtime;
1023 int ac97_rate = chip->dxs_src ? 48000 : runtime->rate;
1024 int rate_changed;
1025 u32 rbits;
1026
1027 if ((rate_changed = via_lock_rate(&chip->rates[0], ac97_rate)) < 0)
1028 return rate_changed;
1029 if (rate_changed)
1030 snd_ac97_set_rate(chip->ac97, AC97_PCM_FRONT_DAC_RATE,
1031 chip->no_vra ? 48000 : runtime->rate);
1032 if (chip->spdif_on && viadev->reg_offset == 0x30)
1033 snd_ac97_set_rate(chip->ac97, AC97_SPDIF, runtime->rate);
1034
1035 if (runtime->rate == 48000)
1036 rbits = 0xfffff;
1037 else
1038 rbits = (0x100000 / 48000) * runtime->rate +
1039 ((0x100000 % 48000) * runtime->rate) / 48000;
1040 snd_BUG_ON(rbits & ~0xfffff);
1041 snd_via82xx_channel_reset(chip, viadev);
1042 snd_via82xx_set_table_ptr(chip, viadev);
1043 outb(chip->playback_volume[viadev->reg_offset / 0x10][0],
1044 VIADEV_REG(viadev, OFS_PLAYBACK_VOLUME_L));
1045 outb(chip->playback_volume[viadev->reg_offset / 0x10][1],
1046 VIADEV_REG(viadev, OFS_PLAYBACK_VOLUME_R));
1047 outl((runtime->format == SNDRV_PCM_FORMAT_S16_LE ? VIA8233_REG_TYPE_16BIT : 0) | /* format */
1048 (runtime->channels > 1 ? VIA8233_REG_TYPE_STEREO : 0) | /* stereo */
1049 rbits | /* rate */
1050 0xff000000, /* STOP index is never reached */
1051 VIADEV_REG(viadev, OFFSET_STOP_IDX));
1052 udelay(20);
1053 snd_via82xx_codec_ready(chip, 0);
1054 return 0;
1055 }
1056
1057 /*
1058 * prepare callback for multi-channel playback on via823x
1059 */
1060 static int snd_via8233_multi_prepare(struct snd_pcm_substream *substream)
1061 {
1062 struct via82xx *chip = snd_pcm_substream_chip(substream);
1063 struct viadev *viadev = substream->runtime->private_data;
1064 struct snd_pcm_runtime *runtime = substream->runtime;
1065 unsigned int slots;
1066 int fmt;
1067
1068 if (via_lock_rate(&chip->rates[0], runtime->rate) < 0)
1069 return -EINVAL;
1070 snd_ac97_set_rate(chip->ac97, AC97_PCM_FRONT_DAC_RATE, runtime->rate);
1071 snd_ac97_set_rate(chip->ac97, AC97_PCM_SURR_DAC_RATE, runtime->rate);
1072 snd_ac97_set_rate(chip->ac97, AC97_PCM_LFE_DAC_RATE, runtime->rate);
1073 snd_ac97_set_rate(chip->ac97, AC97_SPDIF, runtime->rate);
1074 snd_via82xx_channel_reset(chip, viadev);
1075 snd_via82xx_set_table_ptr(chip, viadev);
1076
1077 fmt = (runtime->format == SNDRV_PCM_FORMAT_S16_LE) ?
1078 VIA_REG_MULTPLAY_FMT_16BIT : VIA_REG_MULTPLAY_FMT_8BIT;
1079 fmt |= runtime->channels << 4;
1080 outb(fmt, VIADEV_REG(viadev, OFS_MULTPLAY_FORMAT));
1081 #if 0
1082 if (chip->revision == VIA_REV_8233A)
1083 slots = 0;
1084 else
1085 #endif
1086 {
1087 /* set sample number to slot 3, 4, 7, 8, 6, 9 (for VIA8233/C,8235) */
1088 /* corresponding to FL, FR, RL, RR, C, LFE ?? */
1089 switch (runtime->channels) {
1090 case 1: slots = (1<<0) | (1<<4); break;
1091 case 2: slots = (1<<0) | (2<<4); break;
1092 case 3: slots = (1<<0) | (2<<4) | (5<<8); break;
1093 case 4: slots = (1<<0) | (2<<4) | (3<<8) | (4<<12); break;
1094 case 5: slots = (1<<0) | (2<<4) | (3<<8) | (4<<12) | (5<<16); break;
1095 case 6: slots = (1<<0) | (2<<4) | (3<<8) | (4<<12) | (5<<16) | (6<<20); break;
1096 default: slots = 0; break;
1097 }
1098 }
1099 /* STOP index is never reached */
1100 outl(0xff000000 | slots, VIADEV_REG(viadev, OFFSET_STOP_IDX));
1101 udelay(20);
1102 snd_via82xx_codec_ready(chip, 0);
1103 return 0;
1104 }
1105
1106 /*
1107 * prepare callback for capture on via823x
1108 */
1109 static int snd_via8233_capture_prepare(struct snd_pcm_substream *substream)
1110 {
1111 struct via82xx *chip = snd_pcm_substream_chip(substream);
1112 struct viadev *viadev = substream->runtime->private_data;
1113 struct snd_pcm_runtime *runtime = substream->runtime;
1114
1115 if (via_lock_rate(&chip->rates[1], runtime->rate) < 0)
1116 return -EINVAL;
1117 snd_ac97_set_rate(chip->ac97, AC97_PCM_LR_ADC_RATE, runtime->rate);
1118 snd_via82xx_channel_reset(chip, viadev);
1119 snd_via82xx_set_table_ptr(chip, viadev);
1120 outb(VIA_REG_CAPTURE_FIFO_ENABLE, VIADEV_REG(viadev, OFS_CAPTURE_FIFO));
1121 outl((runtime->format == SNDRV_PCM_FORMAT_S16_LE ? VIA8233_REG_TYPE_16BIT : 0) |
1122 (runtime->channels > 1 ? VIA8233_REG_TYPE_STEREO : 0) |
1123 0xff000000, /* STOP index is never reached */
1124 VIADEV_REG(viadev, OFFSET_STOP_IDX));
1125 udelay(20);
1126 snd_via82xx_codec_ready(chip, 0);
1127 return 0;
1128 }
1129
1130
1131 /*
1132 * pcm hardware definition, identical for both playback and capture
1133 */
1134 static const struct snd_pcm_hardware snd_via82xx_hw =
1135 {
1136 .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1137 SNDRV_PCM_INFO_BLOCK_TRANSFER |
1138 SNDRV_PCM_INFO_MMAP_VALID |
1139 /* SNDRV_PCM_INFO_RESUME | */
1140 SNDRV_PCM_INFO_PAUSE),
1141 .formats = SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
1142 .rates = SNDRV_PCM_RATE_48000,
1143 .rate_min = 48000,
1144 .rate_max = 48000,
1145 .channels_min = 1,
1146 .channels_max = 2,
1147 .buffer_bytes_max = VIA_MAX_BUFSIZE,
1148 .period_bytes_min = 32,
1149 .period_bytes_max = VIA_MAX_BUFSIZE / 2,
1150 .periods_min = 2,
1151 .periods_max = VIA_TABLE_SIZE / 2,
1152 .fifo_size = 0,
1153 };
1154
1155
1156 /*
1157 * open callback skeleton
1158 */
1159 static int snd_via82xx_pcm_open(struct via82xx *chip, struct viadev *viadev,
1160 struct snd_pcm_substream *substream)
1161 {
1162 struct snd_pcm_runtime *runtime = substream->runtime;
1163 int err;
1164 struct via_rate_lock *ratep;
1165 bool use_src = false;
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 use_src = true;
1188 } else if (! ratep->rate) {
1189 int idx = viadev->direction ? AC97_RATES_ADC : AC97_RATES_FRONT_DAC;
1190 runtime->hw.rates = chip->ac97->rates[idx];
1191 snd_pcm_limit_hw_rates(runtime);
1192 } else {
1193 /* a fixed rate */
1194 runtime->hw.rates = SNDRV_PCM_RATE_KNOT;
1195 runtime->hw.rate_max = runtime->hw.rate_min = ratep->rate;
1196 }
1197 spin_unlock_irq(&ratep->lock);
1198
1199 /* we may remove following constaint when we modify table entries
1200 in interrupt */
1201 if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
1202 return err;
1203
1204 if (use_src) {
1205 err = snd_pcm_hw_rule_noresample(runtime, 48000);
1206 if (err < 0)
1207 return err;
1208 }
1209
1210 runtime->private_data = viadev;
1211 viadev->substream = substream;
1212
1213 return 0;
1214 }
1215
1216
1217 /*
1218 * open callback for playback on via686
1219 */
1220 static int snd_via686_playback_open(struct snd_pcm_substream *substream)
1221 {
1222 struct via82xx *chip = snd_pcm_substream_chip(substream);
1223 struct viadev *viadev = &chip->devs[chip->playback_devno + substream->number];
1224 int err;
1225
1226 if ((err = snd_via82xx_pcm_open(chip, viadev, substream)) < 0)
1227 return err;
1228 return 0;
1229 }
1230
1231 /*
1232 * open callback for playback on via823x DXS
1233 */
1234 static int snd_via8233_playback_open(struct snd_pcm_substream *substream)
1235 {
1236 struct via82xx *chip = snd_pcm_substream_chip(substream);
1237 struct viadev *viadev;
1238 unsigned int stream;
1239 int err;
1240
1241 viadev = &chip->devs[chip->playback_devno + substream->number];
1242 if ((err = snd_via82xx_pcm_open(chip, viadev, substream)) < 0)
1243 return err;
1244 stream = viadev->reg_offset / 0x10;
1245 if (chip->dxs_controls[stream]) {
1246 chip->playback_volume[stream][0] =
1247 VIA_DXS_MAX_VOLUME - (dxs_init_volume & 31);
1248 chip->playback_volume[stream][1] =
1249 VIA_DXS_MAX_VOLUME - (dxs_init_volume & 31);
1250 chip->dxs_controls[stream]->vd[0].access &=
1251 ~SNDRV_CTL_ELEM_ACCESS_INACTIVE;
1252 snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE |
1253 SNDRV_CTL_EVENT_MASK_INFO,
1254 &chip->dxs_controls[stream]->id);
1255 }
1256 return 0;
1257 }
1258
1259 /*
1260 * open callback for playback on via823x multi-channel
1261 */
1262 static int snd_via8233_multi_open(struct snd_pcm_substream *substream)
1263 {
1264 struct via82xx *chip = snd_pcm_substream_chip(substream);
1265 struct viadev *viadev = &chip->devs[chip->multi_devno];
1266 int err;
1267 /* channels constraint for VIA8233A
1268 * 3 and 5 channels are not supported
1269 */
1270 static const unsigned int channels[] = {
1271 1, 2, 4, 6
1272 };
1273 static const struct snd_pcm_hw_constraint_list hw_constraints_channels = {
1274 .count = ARRAY_SIZE(channels),
1275 .list = channels,
1276 .mask = 0,
1277 };
1278
1279 if ((err = snd_via82xx_pcm_open(chip, viadev, substream)) < 0)
1280 return err;
1281 substream->runtime->hw.channels_max = 6;
1282 if (chip->revision == VIA_REV_8233A)
1283 snd_pcm_hw_constraint_list(substream->runtime, 0,
1284 SNDRV_PCM_HW_PARAM_CHANNELS,
1285 &hw_constraints_channels);
1286 return 0;
1287 }
1288
1289 /*
1290 * open callback for capture on via686 and via823x
1291 */
1292 static int snd_via82xx_capture_open(struct snd_pcm_substream *substream)
1293 {
1294 struct via82xx *chip = snd_pcm_substream_chip(substream);
1295 struct viadev *viadev = &chip->devs[chip->capture_devno + substream->pcm->device];
1296
1297 return snd_via82xx_pcm_open(chip, viadev, substream);
1298 }
1299
1300 /*
1301 * close callback
1302 */
1303 static int snd_via82xx_pcm_close(struct snd_pcm_substream *substream)
1304 {
1305 struct via82xx *chip = snd_pcm_substream_chip(substream);
1306 struct viadev *viadev = substream->runtime->private_data;
1307 struct via_rate_lock *ratep;
1308
1309 /* release the rate lock */
1310 ratep = &chip->rates[viadev->direction];
1311 spin_lock_irq(&ratep->lock);
1312 ratep->used--;
1313 if (! ratep->used)
1314 ratep->rate = 0;
1315 spin_unlock_irq(&ratep->lock);
1316 if (! ratep->rate) {
1317 if (! viadev->direction) {
1318 snd_ac97_update_power(chip->ac97,
1319 AC97_PCM_FRONT_DAC_RATE, 0);
1320 snd_ac97_update_power(chip->ac97,
1321 AC97_PCM_SURR_DAC_RATE, 0);
1322 snd_ac97_update_power(chip->ac97,
1323 AC97_PCM_LFE_DAC_RATE, 0);
1324 } else
1325 snd_ac97_update_power(chip->ac97,
1326 AC97_PCM_LR_ADC_RATE, 0);
1327 }
1328 viadev->substream = NULL;
1329 return 0;
1330 }
1331
1332 static int snd_via8233_playback_close(struct snd_pcm_substream *substream)
1333 {
1334 struct via82xx *chip = snd_pcm_substream_chip(substream);
1335 struct viadev *viadev = substream->runtime->private_data;
1336 unsigned int stream;
1337
1338 stream = viadev->reg_offset / 0x10;
1339 if (chip->dxs_controls[stream]) {
1340 chip->dxs_controls[stream]->vd[0].access |=
1341 SNDRV_CTL_ELEM_ACCESS_INACTIVE;
1342 snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_INFO,
1343 &chip->dxs_controls[stream]->id);
1344 }
1345 return snd_via82xx_pcm_close(substream);
1346 }
1347
1348
1349 /* via686 playback callbacks */
1350 static const struct snd_pcm_ops snd_via686_playback_ops = {
1351 .open = snd_via686_playback_open,
1352 .close = snd_via82xx_pcm_close,
1353 .hw_params = snd_via82xx_hw_params,
1354 .hw_free = snd_via82xx_hw_free,
1355 .prepare = snd_via686_playback_prepare,
1356 .trigger = snd_via82xx_pcm_trigger,
1357 .pointer = snd_via686_pcm_pointer,
1358 };
1359
1360 /* via686 capture callbacks */
1361 static const struct snd_pcm_ops snd_via686_capture_ops = {
1362 .open = snd_via82xx_capture_open,
1363 .close = snd_via82xx_pcm_close,
1364 .hw_params = snd_via82xx_hw_params,
1365 .hw_free = snd_via82xx_hw_free,
1366 .prepare = snd_via686_capture_prepare,
1367 .trigger = snd_via82xx_pcm_trigger,
1368 .pointer = snd_via686_pcm_pointer,
1369 };
1370
1371 /* via823x DSX playback callbacks */
1372 static const struct snd_pcm_ops snd_via8233_playback_ops = {
1373 .open = snd_via8233_playback_open,
1374 .close = snd_via8233_playback_close,
1375 .hw_params = snd_via82xx_hw_params,
1376 .hw_free = snd_via82xx_hw_free,
1377 .prepare = snd_via8233_playback_prepare,
1378 .trigger = snd_via82xx_pcm_trigger,
1379 .pointer = snd_via8233_pcm_pointer,
1380 };
1381
1382 /* via823x multi-channel playback callbacks */
1383 static const struct snd_pcm_ops snd_via8233_multi_ops = {
1384 .open = snd_via8233_multi_open,
1385 .close = snd_via82xx_pcm_close,
1386 .hw_params = snd_via82xx_hw_params,
1387 .hw_free = snd_via82xx_hw_free,
1388 .prepare = snd_via8233_multi_prepare,
1389 .trigger = snd_via82xx_pcm_trigger,
1390 .pointer = snd_via8233_pcm_pointer,
1391 };
1392
1393 /* via823x capture callbacks */
1394 static const struct snd_pcm_ops snd_via8233_capture_ops = {
1395 .open = snd_via82xx_capture_open,
1396 .close = snd_via82xx_pcm_close,
1397 .hw_params = snd_via82xx_hw_params,
1398 .hw_free = snd_via82xx_hw_free,
1399 .prepare = snd_via8233_capture_prepare,
1400 .trigger = snd_via82xx_pcm_trigger,
1401 .pointer = snd_via8233_pcm_pointer,
1402 };
1403
1404
1405 static void init_viadev(struct via82xx *chip, int idx, unsigned int reg_offset,
1406 int shadow_pos, int direction)
1407 {
1408 chip->devs[idx].reg_offset = reg_offset;
1409 chip->devs[idx].shadow_shift = shadow_pos * 4;
1410 chip->devs[idx].direction = direction;
1411 chip->devs[idx].port = chip->port + reg_offset;
1412 }
1413
1414 /*
1415 * create pcm instances for VIA8233, 8233C and 8235 (not 8233A)
1416 */
1417 static int snd_via8233_pcm_new(struct via82xx *chip)
1418 {
1419 struct snd_pcm *pcm;
1420 struct snd_pcm_chmap *chmap;
1421 int i, err;
1422
1423 chip->playback_devno = 0; /* x 4 */
1424 chip->multi_devno = 4; /* x 1 */
1425 chip->capture_devno = 5; /* x 2 */
1426 chip->num_devs = 7;
1427 chip->intr_mask = 0x33033333; /* FLAG|EOL for rec0-1, mc, sdx0-3 */
1428
1429 /* PCM #0: 4 DSX playbacks and 1 capture */
1430 err = snd_pcm_new(chip->card, chip->card->shortname, 0, 4, 1, &pcm);
1431 if (err < 0)
1432 return err;
1433 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_via8233_playback_ops);
1434 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_via8233_capture_ops);
1435 pcm->private_data = chip;
1436 strcpy(pcm->name, chip->card->shortname);
1437 chip->pcms[0] = pcm;
1438 /* set up playbacks */
1439 for (i = 0; i < 4; i++)
1440 init_viadev(chip, i, 0x10 * i, i, 0);
1441 /* capture */
1442 init_viadev(chip, chip->capture_devno, VIA_REG_CAPTURE_8233_STATUS, 6, 1);
1443
1444 snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
1445 &chip->pci->dev,
1446 64*1024, VIA_MAX_BUFSIZE);
1447
1448 err = snd_pcm_add_chmap_ctls(pcm, SNDRV_PCM_STREAM_PLAYBACK,
1449 snd_pcm_std_chmaps, 2, 0,
1450 &chmap);
1451 if (err < 0)
1452 return err;
1453
1454 /* PCM #1: multi-channel playback and 2nd capture */
1455 err = snd_pcm_new(chip->card, chip->card->shortname, 1, 1, 1, &pcm);
1456 if (err < 0)
1457 return err;
1458 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_via8233_multi_ops);
1459 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_via8233_capture_ops);
1460 pcm->private_data = chip;
1461 strcpy(pcm->name, chip->card->shortname);
1462 chip->pcms[1] = pcm;
1463 /* set up playback */
1464 init_viadev(chip, chip->multi_devno, VIA_REG_MULTPLAY_STATUS, 4, 0);
1465 /* set up capture */
1466 init_viadev(chip, chip->capture_devno + 1, VIA_REG_CAPTURE_8233_STATUS + 0x10, 7, 1);
1467
1468 snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
1469 &chip->pci->dev,
1470 64*1024, VIA_MAX_BUFSIZE);
1471
1472 err = snd_pcm_add_chmap_ctls(pcm, SNDRV_PCM_STREAM_PLAYBACK,
1473 snd_pcm_alt_chmaps, 6, 0,
1474 &chmap);
1475 if (err < 0)
1476 return err;
1477 chip->ac97->chmaps[SNDRV_PCM_STREAM_PLAYBACK] = chmap;
1478
1479 return 0;
1480 }
1481
1482 /*
1483 * create pcm instances for VIA8233A
1484 */
1485 static int snd_via8233a_pcm_new(struct via82xx *chip)
1486 {
1487 struct snd_pcm *pcm;
1488 struct snd_pcm_chmap *chmap;
1489 int err;
1490
1491 chip->multi_devno = 0;
1492 chip->playback_devno = 1;
1493 chip->capture_devno = 2;
1494 chip->num_devs = 3;
1495 chip->intr_mask = 0x03033000; /* FLAG|EOL for rec0, mc, sdx3 */
1496
1497 /* PCM #0: multi-channel playback and capture */
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_via8233_multi_ops);
1502 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_via8233_capture_ops);
1503 pcm->private_data = chip;
1504 strcpy(pcm->name, chip->card->shortname);
1505 chip->pcms[0] = pcm;
1506 /* set up playback */
1507 init_viadev(chip, chip->multi_devno, VIA_REG_MULTPLAY_STATUS, 4, 0);
1508 /* capture */
1509 init_viadev(chip, chip->capture_devno, VIA_REG_CAPTURE_8233_STATUS, 6, 1);
1510
1511 snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
1512 &chip->pci->dev,
1513 64*1024, VIA_MAX_BUFSIZE);
1514
1515 err = snd_pcm_add_chmap_ctls(pcm, SNDRV_PCM_STREAM_PLAYBACK,
1516 snd_pcm_alt_chmaps, 6, 0,
1517 &chmap);
1518 if (err < 0)
1519 return err;
1520 chip->ac97->chmaps[SNDRV_PCM_STREAM_PLAYBACK] = chmap;
1521
1522 /* SPDIF supported? */
1523 if (! ac97_can_spdif(chip->ac97))
1524 return 0;
1525
1526 /* PCM #1: DXS3 playback (for spdif) */
1527 err = snd_pcm_new(chip->card, chip->card->shortname, 1, 1, 0, &pcm);
1528 if (err < 0)
1529 return err;
1530 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_via8233_playback_ops);
1531 pcm->private_data = chip;
1532 strcpy(pcm->name, chip->card->shortname);
1533 chip->pcms[1] = pcm;
1534 /* set up playback */
1535 init_viadev(chip, chip->playback_devno, 0x30, 3, 0);
1536
1537 snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
1538 &chip->pci->dev,
1539 64*1024, VIA_MAX_BUFSIZE);
1540 return 0;
1541 }
1542
1543 /*
1544 * create a pcm instance for via686a/b
1545 */
1546 static int snd_via686_pcm_new(struct via82xx *chip)
1547 {
1548 struct snd_pcm *pcm;
1549 int err;
1550
1551 chip->playback_devno = 0;
1552 chip->capture_devno = 1;
1553 chip->num_devs = 2;
1554 chip->intr_mask = 0x77; /* FLAG | EOL for PB, CP, FM */
1555
1556 err = snd_pcm_new(chip->card, chip->card->shortname, 0, 1, 1, &pcm);
1557 if (err < 0)
1558 return err;
1559 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_via686_playback_ops);
1560 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_via686_capture_ops);
1561 pcm->private_data = chip;
1562 strcpy(pcm->name, chip->card->shortname);
1563 chip->pcms[0] = pcm;
1564 init_viadev(chip, 0, VIA_REG_PLAYBACK_STATUS, 0, 0);
1565 init_viadev(chip, 1, VIA_REG_CAPTURE_STATUS, 0, 1);
1566
1567 snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
1568 &chip->pci->dev,
1569 64*1024, VIA_MAX_BUFSIZE);
1570 return 0;
1571 }
1572
1573
1574 /*
1575 * Mixer part
1576 */
1577
1578 static int snd_via8233_capture_source_info(struct snd_kcontrol *kcontrol,
1579 struct snd_ctl_elem_info *uinfo)
1580 {
1581 /* formerly they were "Line" and "Mic", but it looks like that they
1582 * have nothing to do with the actual physical connections...
1583 */
1584 static const char * const texts[2] = {
1585 "Input1", "Input2"
1586 };
1587 return snd_ctl_enum_info(uinfo, 1, 2, texts);
1588 }
1589
1590 static int snd_via8233_capture_source_get(struct snd_kcontrol *kcontrol,
1591 struct snd_ctl_elem_value *ucontrol)
1592 {
1593 struct via82xx *chip = snd_kcontrol_chip(kcontrol);
1594 unsigned long port = chip->port + (kcontrol->id.index ? (VIA_REG_CAPTURE_CHANNEL + 0x10) : VIA_REG_CAPTURE_CHANNEL);
1595 ucontrol->value.enumerated.item[0] = inb(port) & VIA_REG_CAPTURE_CHANNEL_MIC ? 1 : 0;
1596 return 0;
1597 }
1598
1599 static int snd_via8233_capture_source_put(struct snd_kcontrol *kcontrol,
1600 struct snd_ctl_elem_value *ucontrol)
1601 {
1602 struct via82xx *chip = snd_kcontrol_chip(kcontrol);
1603 unsigned long port = chip->port + (kcontrol->id.index ? (VIA_REG_CAPTURE_CHANNEL + 0x10) : VIA_REG_CAPTURE_CHANNEL);
1604 u8 val, oval;
1605
1606 spin_lock_irq(&chip->reg_lock);
1607 oval = inb(port);
1608 val = oval & ~VIA_REG_CAPTURE_CHANNEL_MIC;
1609 if (ucontrol->value.enumerated.item[0])
1610 val |= VIA_REG_CAPTURE_CHANNEL_MIC;
1611 if (val != oval)
1612 outb(val, port);
1613 spin_unlock_irq(&chip->reg_lock);
1614 return val != oval;
1615 }
1616
1617 static struct snd_kcontrol_new snd_via8233_capture_source = {
1618 .name = "Input Source Select",
1619 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1620 .info = snd_via8233_capture_source_info,
1621 .get = snd_via8233_capture_source_get,
1622 .put = snd_via8233_capture_source_put,
1623 };
1624
1625 #define snd_via8233_dxs3_spdif_info snd_ctl_boolean_mono_info
1626
1627 static int snd_via8233_dxs3_spdif_get(struct snd_kcontrol *kcontrol,
1628 struct snd_ctl_elem_value *ucontrol)
1629 {
1630 struct via82xx *chip = snd_kcontrol_chip(kcontrol);
1631 u8 val;
1632
1633 pci_read_config_byte(chip->pci, VIA8233_SPDIF_CTRL, &val);
1634 ucontrol->value.integer.value[0] = (val & VIA8233_SPDIF_DX3) ? 1 : 0;
1635 return 0;
1636 }
1637
1638 static int snd_via8233_dxs3_spdif_put(struct snd_kcontrol *kcontrol,
1639 struct snd_ctl_elem_value *ucontrol)
1640 {
1641 struct via82xx *chip = snd_kcontrol_chip(kcontrol);
1642 u8 val, oval;
1643
1644 pci_read_config_byte(chip->pci, VIA8233_SPDIF_CTRL, &oval);
1645 val = oval & ~VIA8233_SPDIF_DX3;
1646 if (ucontrol->value.integer.value[0])
1647 val |= VIA8233_SPDIF_DX3;
1648 /* save the spdif flag for rate filtering */
1649 chip->spdif_on = ucontrol->value.integer.value[0] ? 1 : 0;
1650 if (val != oval) {
1651 pci_write_config_byte(chip->pci, VIA8233_SPDIF_CTRL, val);
1652 return 1;
1653 }
1654 return 0;
1655 }
1656
1657 static const struct snd_kcontrol_new snd_via8233_dxs3_spdif_control = {
1658 .name = SNDRV_CTL_NAME_IEC958("Output ",NONE,SWITCH),
1659 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1660 .info = snd_via8233_dxs3_spdif_info,
1661 .get = snd_via8233_dxs3_spdif_get,
1662 .put = snd_via8233_dxs3_spdif_put,
1663 };
1664
1665 static int snd_via8233_dxs_volume_info(struct snd_kcontrol *kcontrol,
1666 struct snd_ctl_elem_info *uinfo)
1667 {
1668 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
1669 uinfo->count = 2;
1670 uinfo->value.integer.min = 0;
1671 uinfo->value.integer.max = VIA_DXS_MAX_VOLUME;
1672 return 0;
1673 }
1674
1675 static int snd_via8233_dxs_volume_get(struct snd_kcontrol *kcontrol,
1676 struct snd_ctl_elem_value *ucontrol)
1677 {
1678 struct via82xx *chip = snd_kcontrol_chip(kcontrol);
1679 unsigned int idx = kcontrol->id.subdevice;
1680
1681 ucontrol->value.integer.value[0] = VIA_DXS_MAX_VOLUME - chip->playback_volume[idx][0];
1682 ucontrol->value.integer.value[1] = VIA_DXS_MAX_VOLUME - chip->playback_volume[idx][1];
1683 return 0;
1684 }
1685
1686 static int snd_via8233_pcmdxs_volume_get(struct snd_kcontrol *kcontrol,
1687 struct snd_ctl_elem_value *ucontrol)
1688 {
1689 struct via82xx *chip = snd_kcontrol_chip(kcontrol);
1690 ucontrol->value.integer.value[0] = VIA_DXS_MAX_VOLUME - chip->playback_volume_c[0];
1691 ucontrol->value.integer.value[1] = VIA_DXS_MAX_VOLUME - chip->playback_volume_c[1];
1692 return 0;
1693 }
1694
1695 static int snd_via8233_dxs_volume_put(struct snd_kcontrol *kcontrol,
1696 struct snd_ctl_elem_value *ucontrol)
1697 {
1698 struct via82xx *chip = snd_kcontrol_chip(kcontrol);
1699 unsigned int idx = kcontrol->id.subdevice;
1700 unsigned long port = chip->port + 0x10 * idx;
1701 unsigned char val;
1702 int i, change = 0;
1703
1704 for (i = 0; i < 2; i++) {
1705 val = ucontrol->value.integer.value[i];
1706 if (val > VIA_DXS_MAX_VOLUME)
1707 val = VIA_DXS_MAX_VOLUME;
1708 val = VIA_DXS_MAX_VOLUME - val;
1709 change |= val != chip->playback_volume[idx][i];
1710 if (change) {
1711 chip->playback_volume[idx][i] = val;
1712 outb(val, port + VIA_REG_OFS_PLAYBACK_VOLUME_L + i);
1713 }
1714 }
1715 return change;
1716 }
1717
1718 static int snd_via8233_pcmdxs_volume_put(struct snd_kcontrol *kcontrol,
1719 struct snd_ctl_elem_value *ucontrol)
1720 {
1721 struct via82xx *chip = snd_kcontrol_chip(kcontrol);
1722 unsigned int idx;
1723 unsigned char val;
1724 int i, change = 0;
1725
1726 for (i = 0; i < 2; i++) {
1727 val = ucontrol->value.integer.value[i];
1728 if (val > VIA_DXS_MAX_VOLUME)
1729 val = VIA_DXS_MAX_VOLUME;
1730 val = VIA_DXS_MAX_VOLUME - val;
1731 if (val != chip->playback_volume_c[i]) {
1732 change = 1;
1733 chip->playback_volume_c[i] = val;
1734 for (idx = 0; idx < 4; idx++) {
1735 unsigned long port = chip->port + 0x10 * idx;
1736 chip->playback_volume[idx][i] = val;
1737 outb(val, port + VIA_REG_OFS_PLAYBACK_VOLUME_L + i);
1738 }
1739 }
1740 }
1741 return change;
1742 }
1743
1744 static const DECLARE_TLV_DB_SCALE(db_scale_dxs, -4650, 150, 1);
1745
1746 static const struct snd_kcontrol_new snd_via8233_pcmdxs_volume_control = {
1747 .name = "PCM Playback Volume",
1748 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1749 .access = (SNDRV_CTL_ELEM_ACCESS_READWRITE |
1750 SNDRV_CTL_ELEM_ACCESS_TLV_READ),
1751 .info = snd_via8233_dxs_volume_info,
1752 .get = snd_via8233_pcmdxs_volume_get,
1753 .put = snd_via8233_pcmdxs_volume_put,
1754 .tlv = { .p = db_scale_dxs }
1755 };
1756
1757 static const struct snd_kcontrol_new snd_via8233_dxs_volume_control = {
1758 .iface = SNDRV_CTL_ELEM_IFACE_PCM,
1759 .device = 0,
1760 /* .subdevice set later */
1761 .name = "PCM Playback Volume",
1762 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE |
1763 SNDRV_CTL_ELEM_ACCESS_TLV_READ |
1764 SNDRV_CTL_ELEM_ACCESS_INACTIVE,
1765 .info = snd_via8233_dxs_volume_info,
1766 .get = snd_via8233_dxs_volume_get,
1767 .put = snd_via8233_dxs_volume_put,
1768 .tlv = { .p = db_scale_dxs }
1769 };
1770
1771 /*
1772 */
1773
1774 static void snd_via82xx_mixer_free_ac97_bus(struct snd_ac97_bus *bus)
1775 {
1776 struct via82xx *chip = bus->private_data;
1777 chip->ac97_bus = NULL;
1778 }
1779
1780 static void snd_via82xx_mixer_free_ac97(struct snd_ac97 *ac97)
1781 {
1782 struct via82xx *chip = ac97->private_data;
1783 chip->ac97 = NULL;
1784 }
1785
1786 static const struct ac97_quirk ac97_quirks[] = {
1787 {
1788 .subvendor = 0x1106,
1789 .subdevice = 0x4161,
1790 .codec_id = 0x56494161, /* VT1612A */
1791 .name = "Soltek SL-75DRV5",
1792 .type = AC97_TUNE_NONE
1793 },
1794 { /* FIXME: which codec? */
1795 .subvendor = 0x1106,
1796 .subdevice = 0x4161,
1797 .name = "ASRock K7VT2",
1798 .type = AC97_TUNE_HP_ONLY
1799 },
1800 {
1801 .subvendor = 0x110a,
1802 .subdevice = 0x0079,
1803 .name = "Fujitsu Siemens D1289",
1804 .type = AC97_TUNE_HP_ONLY
1805 },
1806 {
1807 .subvendor = 0x1019,
1808 .subdevice = 0x0a81,
1809 .name = "ECS K7VTA3",
1810 .type = AC97_TUNE_HP_ONLY
1811 },
1812 {
1813 .subvendor = 0x1019,
1814 .subdevice = 0x0a85,
1815 .name = "ECS L7VMM2",
1816 .type = AC97_TUNE_HP_ONLY
1817 },
1818 {
1819 .subvendor = 0x1019,
1820 .subdevice = 0x1841,
1821 .name = "ECS K7VTA3",
1822 .type = AC97_TUNE_HP_ONLY
1823 },
1824 {
1825 .subvendor = 0x1849,
1826 .subdevice = 0x3059,
1827 .name = "ASRock K7VM2",
1828 .type = AC97_TUNE_HP_ONLY /* VT1616 */
1829 },
1830 {
1831 .subvendor = 0x14cd,
1832 .subdevice = 0x7002,
1833 .name = "Unknown",
1834 .type = AC97_TUNE_ALC_JACK
1835 },
1836 {
1837 .subvendor = 0x1071,
1838 .subdevice = 0x8590,
1839 .name = "Mitac Mobo",
1840 .type = AC97_TUNE_ALC_JACK
1841 },
1842 {
1843 .subvendor = 0x161f,
1844 .subdevice = 0x202b,
1845 .name = "Arima Notebook",
1846 .type = AC97_TUNE_HP_ONLY,
1847 },
1848 {
1849 .subvendor = 0x161f,
1850 .subdevice = 0x2032,
1851 .name = "Targa Traveller 811",
1852 .type = AC97_TUNE_HP_ONLY,
1853 },
1854 {
1855 .subvendor = 0x161f,
1856 .subdevice = 0x2032,
1857 .name = "m680x",
1858 .type = AC97_TUNE_HP_ONLY, /* http://launchpad.net/bugs/38546 */
1859 },
1860 {
1861 .subvendor = 0x1297,
1862 .subdevice = 0xa232,
1863 .name = "Shuttle AK32VN",
1864 .type = AC97_TUNE_HP_ONLY
1865 },
1866 { } /* terminator */
1867 };
1868
1869 static int snd_via82xx_mixer_new(struct via82xx *chip, const char *quirk_override)
1870 {
1871 struct snd_ac97_template ac97;
1872 int err;
1873 static const struct snd_ac97_bus_ops ops = {
1874 .write = snd_via82xx_codec_write,
1875 .read = snd_via82xx_codec_read,
1876 .wait = snd_via82xx_codec_wait,
1877 };
1878
1879 if ((err = snd_ac97_bus(chip->card, 0, &ops, chip, &chip->ac97_bus)) < 0)
1880 return err;
1881 chip->ac97_bus->private_free = snd_via82xx_mixer_free_ac97_bus;
1882 chip->ac97_bus->clock = chip->ac97_clock;
1883
1884 memset(&ac97, 0, sizeof(ac97));
1885 ac97.private_data = chip;
1886 ac97.private_free = snd_via82xx_mixer_free_ac97;
1887 ac97.pci = chip->pci;
1888 ac97.scaps = AC97_SCAP_SKIP_MODEM | AC97_SCAP_POWER_SAVE;
1889 if ((err = snd_ac97_mixer(chip->ac97_bus, &ac97, &chip->ac97)) < 0)
1890 return err;
1891
1892 snd_ac97_tune_hardware(chip->ac97, ac97_quirks, quirk_override);
1893
1894 if (chip->chip_type != TYPE_VIA686) {
1895 /* use slot 10/11 */
1896 snd_ac97_update_bits(chip->ac97, AC97_EXTENDED_STATUS, 0x03 << 4, 0x03 << 4);
1897 }
1898
1899 return 0;
1900 }
1901
1902 #ifdef SUPPORT_JOYSTICK
1903 #define JOYSTICK_ADDR 0x200
1904 static int snd_via686_create_gameport(struct via82xx *chip, unsigned char *legacy)
1905 {
1906 struct gameport *gp;
1907 struct resource *r;
1908
1909 if (!joystick)
1910 return -ENODEV;
1911
1912 r = request_region(JOYSTICK_ADDR, 8, "VIA686 gameport");
1913 if (!r) {
1914 dev_warn(chip->card->dev, "cannot reserve joystick port %#x\n",
1915 JOYSTICK_ADDR);
1916 return -EBUSY;
1917 }
1918
1919 chip->gameport = gp = gameport_allocate_port();
1920 if (!gp) {
1921 dev_err(chip->card->dev,
1922 "cannot allocate memory for gameport\n");
1923 release_and_free_resource(r);
1924 return -ENOMEM;
1925 }
1926
1927 gameport_set_name(gp, "VIA686 Gameport");
1928 gameport_set_phys(gp, "pci%s/gameport0", pci_name(chip->pci));
1929 gameport_set_dev_parent(gp, &chip->pci->dev);
1930 gp->io = JOYSTICK_ADDR;
1931 gameport_set_port_data(gp, r);
1932
1933 /* Enable legacy joystick port */
1934 *legacy |= VIA_FUNC_ENABLE_GAME;
1935 pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE, *legacy);
1936
1937 gameport_register_port(chip->gameport);
1938
1939 return 0;
1940 }
1941
1942 static void snd_via686_free_gameport(struct via82xx *chip)
1943 {
1944 if (chip->gameport) {
1945 struct resource *r = gameport_get_port_data(chip->gameport);
1946
1947 gameport_unregister_port(chip->gameport);
1948 chip->gameport = NULL;
1949 release_and_free_resource(r);
1950 }
1951 }
1952 #else
1953 static inline int snd_via686_create_gameport(struct via82xx *chip, unsigned char *legacy)
1954 {
1955 return -ENOSYS;
1956 }
1957 static inline void snd_via686_free_gameport(struct via82xx *chip) { }
1958 #endif
1959
1960
1961 /*
1962 *
1963 */
1964
1965 static int snd_via8233_init_misc(struct via82xx *chip)
1966 {
1967 int i, err, caps;
1968 unsigned char val;
1969
1970 caps = chip->chip_type == TYPE_VIA8233A ? 1 : 2;
1971 for (i = 0; i < caps; i++) {
1972 snd_via8233_capture_source.index = i;
1973 err = snd_ctl_add(chip->card, snd_ctl_new1(&snd_via8233_capture_source, chip));
1974 if (err < 0)
1975 return err;
1976 }
1977 if (ac97_can_spdif(chip->ac97)) {
1978 err = snd_ctl_add(chip->card, snd_ctl_new1(&snd_via8233_dxs3_spdif_control, chip));
1979 if (err < 0)
1980 return err;
1981 }
1982 if (chip->chip_type != TYPE_VIA8233A) {
1983 /* when no h/w PCM volume control is found, use DXS volume control
1984 * as the PCM vol control
1985 */
1986 struct snd_ctl_elem_id sid;
1987 memset(&sid, 0, sizeof(sid));
1988 strcpy(sid.name, "PCM Playback Volume");
1989 sid.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
1990 if (! snd_ctl_find_id(chip->card, &sid)) {
1991 dev_info(chip->card->dev,
1992 "Using DXS as PCM Playback\n");
1993 err = snd_ctl_add(chip->card, snd_ctl_new1(&snd_via8233_pcmdxs_volume_control, chip));
1994 if (err < 0)
1995 return err;
1996 }
1997 else /* Using DXS when PCM emulation is enabled is really weird */
1998 {
1999 for (i = 0; i < 4; ++i) {
2000 struct snd_kcontrol *kctl;
2001
2002 kctl = snd_ctl_new1(
2003 &snd_via8233_dxs_volume_control, chip);
2004 if (!kctl)
2005 return -ENOMEM;
2006 kctl->id.subdevice = i;
2007 err = snd_ctl_add(chip->card, kctl);
2008 if (err < 0)
2009 return err;
2010 chip->dxs_controls[i] = kctl;
2011 }
2012 }
2013 }
2014 /* select spdif data slot 10/11 */
2015 pci_read_config_byte(chip->pci, VIA8233_SPDIF_CTRL, &val);
2016 val = (val & ~VIA8233_SPDIF_SLOT_MASK) | VIA8233_SPDIF_SLOT_1011;
2017 val &= ~VIA8233_SPDIF_DX3; /* SPDIF off as default */
2018 pci_write_config_byte(chip->pci, VIA8233_SPDIF_CTRL, val);
2019
2020 return 0;
2021 }
2022
2023 static int snd_via686_init_misc(struct via82xx *chip)
2024 {
2025 unsigned char legacy, legacy_cfg;
2026 int rev_h = 0;
2027
2028 legacy = chip->old_legacy;
2029 legacy_cfg = chip->old_legacy_cfg;
2030 legacy |= VIA_FUNC_MIDI_IRQMASK; /* FIXME: correct? (disable MIDI) */
2031 legacy &= ~VIA_FUNC_ENABLE_GAME; /* disable joystick */
2032 if (chip->revision >= VIA_REV_686_H) {
2033 rev_h = 1;
2034 if (mpu_port >= 0x200) { /* force MIDI */
2035 mpu_port &= 0xfffc;
2036 pci_write_config_dword(chip->pci, 0x18, mpu_port | 0x01);
2037 #ifdef CONFIG_PM_SLEEP
2038 chip->mpu_port_saved = mpu_port;
2039 #endif
2040 } else {
2041 mpu_port = pci_resource_start(chip->pci, 2);
2042 }
2043 } else {
2044 switch (mpu_port) { /* force MIDI */
2045 case 0x300:
2046 case 0x310:
2047 case 0x320:
2048 case 0x330:
2049 legacy_cfg &= ~(3 << 2);
2050 legacy_cfg |= (mpu_port & 0x0030) >> 2;
2051 break;
2052 default: /* no, use BIOS settings */
2053 if (legacy & VIA_FUNC_ENABLE_MIDI)
2054 mpu_port = 0x300 + ((legacy_cfg & 0x000c) << 2);
2055 break;
2056 }
2057 }
2058 if (mpu_port >= 0x200 &&
2059 (chip->mpu_res = request_region(mpu_port, 2, "VIA82xx MPU401"))
2060 != NULL) {
2061 if (rev_h)
2062 legacy |= VIA_FUNC_MIDI_PNP; /* enable PCI I/O 2 */
2063 legacy |= VIA_FUNC_ENABLE_MIDI;
2064 } else {
2065 if (rev_h)
2066 legacy &= ~VIA_FUNC_MIDI_PNP; /* disable PCI I/O 2 */
2067 legacy &= ~VIA_FUNC_ENABLE_MIDI;
2068 mpu_port = 0;
2069 }
2070
2071 pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE, legacy);
2072 pci_write_config_byte(chip->pci, VIA_PNP_CONTROL, legacy_cfg);
2073 if (chip->mpu_res) {
2074 if (snd_mpu401_uart_new(chip->card, 0, MPU401_HW_VIA686A,
2075 mpu_port, MPU401_INFO_INTEGRATED |
2076 MPU401_INFO_IRQ_HOOK, -1,
2077 &chip->rmidi) < 0) {
2078 dev_warn(chip->card->dev,
2079 "unable to initialize MPU-401 at 0x%lx, skipping\n",
2080 mpu_port);
2081 legacy &= ~VIA_FUNC_ENABLE_MIDI;
2082 } else {
2083 legacy &= ~VIA_FUNC_MIDI_IRQMASK; /* enable MIDI interrupt */
2084 }
2085 pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE, legacy);
2086 }
2087
2088 snd_via686_create_gameport(chip, &legacy);
2089
2090 #ifdef CONFIG_PM_SLEEP
2091 chip->legacy_saved = legacy;
2092 chip->legacy_cfg_saved = legacy_cfg;
2093 #endif
2094
2095 return 0;
2096 }
2097
2098
2099 /*
2100 * proc interface
2101 */
2102 static void snd_via82xx_proc_read(struct snd_info_entry *entry,
2103 struct snd_info_buffer *buffer)
2104 {
2105 struct via82xx *chip = entry->private_data;
2106 int i;
2107
2108 snd_iprintf(buffer, "%s\n\n", chip->card->longname);
2109 for (i = 0; i < 0xa0; i += 4) {
2110 snd_iprintf(buffer, "%02x: %08x\n", i, inl(chip->port + i));
2111 }
2112 }
2113
2114 static void snd_via82xx_proc_init(struct via82xx *chip)
2115 {
2116 snd_card_ro_proc_new(chip->card, "via82xx", chip,
2117 snd_via82xx_proc_read);
2118 }
2119
2120 /*
2121 *
2122 */
2123
2124 static int snd_via82xx_chip_init(struct via82xx *chip)
2125 {
2126 unsigned int val;
2127 unsigned long end_time;
2128 unsigned char pval;
2129
2130 #if 0 /* broken on K7M? */
2131 if (chip->chip_type == TYPE_VIA686)
2132 /* disable all legacy ports */
2133 pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE, 0);
2134 #endif
2135 pci_read_config_byte(chip->pci, VIA_ACLINK_STAT, &pval);
2136 if (! (pval & VIA_ACLINK_C00_READY)) { /* codec not ready? */
2137 /* deassert ACLink reset, force SYNC */
2138 pci_write_config_byte(chip->pci, VIA_ACLINK_CTRL,
2139 VIA_ACLINK_CTRL_ENABLE |
2140 VIA_ACLINK_CTRL_RESET |
2141 VIA_ACLINK_CTRL_SYNC);
2142 udelay(100);
2143 #if 1 /* FIXME: should we do full reset here for all chip models? */
2144 pci_write_config_byte(chip->pci, VIA_ACLINK_CTRL, 0x00);
2145 udelay(100);
2146 #else
2147 /* deassert ACLink reset, force SYNC (warm AC'97 reset) */
2148 pci_write_config_byte(chip->pci, VIA_ACLINK_CTRL,
2149 VIA_ACLINK_CTRL_RESET|VIA_ACLINK_CTRL_SYNC);
2150 udelay(2);
2151 #endif
2152 /* ACLink on, deassert ACLink reset, VSR, SGD data out */
2153 /* note - FM data out has trouble with non VRA codecs !! */
2154 pci_write_config_byte(chip->pci, VIA_ACLINK_CTRL, VIA_ACLINK_CTRL_INIT);
2155 udelay(100);
2156 }
2157
2158 /* Make sure VRA is enabled, in case we didn't do a
2159 * complete codec reset, above */
2160 pci_read_config_byte(chip->pci, VIA_ACLINK_CTRL, &pval);
2161 if ((pval & VIA_ACLINK_CTRL_INIT) != VIA_ACLINK_CTRL_INIT) {
2162 /* ACLink on, deassert ACLink reset, VSR, SGD data out */
2163 /* note - FM data out has trouble with non VRA codecs !! */
2164 pci_write_config_byte(chip->pci, VIA_ACLINK_CTRL, VIA_ACLINK_CTRL_INIT);
2165 udelay(100);
2166 }
2167
2168 /* wait until codec ready */
2169 end_time = jiffies + msecs_to_jiffies(750);
2170 do {
2171 pci_read_config_byte(chip->pci, VIA_ACLINK_STAT, &pval);
2172 if (pval & VIA_ACLINK_C00_READY) /* primary codec ready */
2173 break;
2174 schedule_timeout_uninterruptible(1);
2175 } while (time_before(jiffies, end_time));
2176
2177 if ((val = snd_via82xx_codec_xread(chip)) & VIA_REG_AC97_BUSY)
2178 dev_err(chip->card->dev,
2179 "AC'97 codec is not ready [0x%x]\n", val);
2180
2181 #if 0 /* FIXME: we don't support the second codec yet so skip the detection now.. */
2182 snd_via82xx_codec_xwrite(chip, VIA_REG_AC97_READ |
2183 VIA_REG_AC97_SECONDARY_VALID |
2184 (VIA_REG_AC97_CODEC_ID_SECONDARY << VIA_REG_AC97_CODEC_ID_SHIFT));
2185 end_time = jiffies + msecs_to_jiffies(750);
2186 snd_via82xx_codec_xwrite(chip, VIA_REG_AC97_READ |
2187 VIA_REG_AC97_SECONDARY_VALID |
2188 (VIA_REG_AC97_CODEC_ID_SECONDARY << VIA_REG_AC97_CODEC_ID_SHIFT));
2189 do {
2190 if ((val = snd_via82xx_codec_xread(chip)) & VIA_REG_AC97_SECONDARY_VALID) {
2191 chip->ac97_secondary = 1;
2192 goto __ac97_ok2;
2193 }
2194 schedule_timeout_uninterruptible(1);
2195 } while (time_before(jiffies, end_time));
2196 /* This is ok, the most of motherboards have only one codec */
2197
2198 __ac97_ok2:
2199 #endif
2200
2201 if (chip->chip_type == TYPE_VIA686) {
2202 /* route FM trap to IRQ, disable FM trap */
2203 pci_write_config_byte(chip->pci, VIA_FM_NMI_CTRL, 0);
2204 /* disable all GPI interrupts */
2205 outl(0, VIAREG(chip, GPI_INTR));
2206 }
2207
2208 if (chip->chip_type != TYPE_VIA686) {
2209 /* Workaround for Award BIOS bug:
2210 * DXS channels don't work properly with VRA if MC97 is disabled.
2211 */
2212 struct pci_dev *pci;
2213 pci = pci_get_device(0x1106, 0x3068, NULL); /* MC97 */
2214 if (pci) {
2215 unsigned char data;
2216 pci_read_config_byte(pci, 0x44, &data);
2217 pci_write_config_byte(pci, 0x44, data | 0x40);
2218 pci_dev_put(pci);
2219 }
2220 }
2221
2222 if (chip->chip_type != TYPE_VIA8233A) {
2223 int i, idx;
2224 for (idx = 0; idx < 4; idx++) {
2225 unsigned long port = chip->port + 0x10 * idx;
2226 for (i = 0; i < 2; i++) {
2227 chip->playback_volume[idx][i]=chip->playback_volume_c[i];
2228 outb(chip->playback_volume_c[i],
2229 port + VIA_REG_OFS_PLAYBACK_VOLUME_L + i);
2230 }
2231 }
2232 }
2233
2234 return 0;
2235 }
2236
2237 #ifdef CONFIG_PM_SLEEP
2238 /*
2239 * power management
2240 */
2241 static int snd_via82xx_suspend(struct device *dev)
2242 {
2243 struct snd_card *card = dev_get_drvdata(dev);
2244 struct via82xx *chip = card->private_data;
2245 int i;
2246
2247 snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
2248 for (i = 0; i < chip->num_devs; i++)
2249 snd_via82xx_channel_reset(chip, &chip->devs[i]);
2250 snd_ac97_suspend(chip->ac97);
2251
2252 /* save misc values */
2253 if (chip->chip_type != TYPE_VIA686) {
2254 pci_read_config_byte(chip->pci, VIA8233_SPDIF_CTRL, &chip->spdif_ctrl_saved);
2255 chip->capture_src_saved[0] = inb(chip->port + VIA_REG_CAPTURE_CHANNEL);
2256 chip->capture_src_saved[1] = inb(chip->port + VIA_REG_CAPTURE_CHANNEL + 0x10);
2257 }
2258
2259 return 0;
2260 }
2261
2262 static int snd_via82xx_resume(struct device *dev)
2263 {
2264 struct snd_card *card = dev_get_drvdata(dev);
2265 struct via82xx *chip = card->private_data;
2266 int i;
2267
2268 snd_via82xx_chip_init(chip);
2269
2270 if (chip->chip_type == TYPE_VIA686) {
2271 if (chip->mpu_port_saved)
2272 pci_write_config_dword(chip->pci, 0x18, chip->mpu_port_saved | 0x01);
2273 pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE, chip->legacy_saved);
2274 pci_write_config_byte(chip->pci, VIA_PNP_CONTROL, chip->legacy_cfg_saved);
2275 } else {
2276 pci_write_config_byte(chip->pci, VIA8233_SPDIF_CTRL, chip->spdif_ctrl_saved);
2277 outb(chip->capture_src_saved[0], chip->port + VIA_REG_CAPTURE_CHANNEL);
2278 outb(chip->capture_src_saved[1], chip->port + VIA_REG_CAPTURE_CHANNEL + 0x10);
2279 }
2280
2281 snd_ac97_resume(chip->ac97);
2282
2283 for (i = 0; i < chip->num_devs; i++)
2284 snd_via82xx_channel_reset(chip, &chip->devs[i]);
2285
2286 snd_power_change_state(card, SNDRV_CTL_POWER_D0);
2287 return 0;
2288 }
2289
2290 static SIMPLE_DEV_PM_OPS(snd_via82xx_pm, snd_via82xx_suspend, snd_via82xx_resume);
2291 #define SND_VIA82XX_PM_OPS &snd_via82xx_pm
2292 #else
2293 #define SND_VIA82XX_PM_OPS NULL
2294 #endif /* CONFIG_PM_SLEEP */
2295
2296 static int snd_via82xx_free(struct via82xx *chip)
2297 {
2298 unsigned int i;
2299
2300 if (chip->irq < 0)
2301 goto __end_hw;
2302 /* disable interrupts */
2303 for (i = 0; i < chip->num_devs; i++)
2304 snd_via82xx_channel_reset(chip, &chip->devs[i]);
2305
2306 if (chip->irq >= 0)
2307 free_irq(chip->irq, chip);
2308 __end_hw:
2309 release_and_free_resource(chip->mpu_res);
2310 pci_release_regions(chip->pci);
2311
2312 if (chip->chip_type == TYPE_VIA686) {
2313 snd_via686_free_gameport(chip);
2314 pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE, chip->old_legacy);
2315 pci_write_config_byte(chip->pci, VIA_PNP_CONTROL, chip->old_legacy_cfg);
2316 }
2317 pci_disable_device(chip->pci);
2318 kfree(chip);
2319 return 0;
2320 }
2321
2322 static int snd_via82xx_dev_free(struct snd_device *device)
2323 {
2324 struct via82xx *chip = device->device_data;
2325 return snd_via82xx_free(chip);
2326 }
2327
2328 static int snd_via82xx_create(struct snd_card *card,
2329 struct pci_dev *pci,
2330 int chip_type,
2331 int revision,
2332 unsigned int ac97_clock,
2333 struct via82xx **r_via)
2334 {
2335 struct via82xx *chip;
2336 int err;
2337 static const struct snd_device_ops ops = {
2338 .dev_free = snd_via82xx_dev_free,
2339 };
2340
2341 if ((err = pci_enable_device(pci)) < 0)
2342 return err;
2343
2344 if ((chip = kzalloc(sizeof(*chip), GFP_KERNEL)) == NULL) {
2345 pci_disable_device(pci);
2346 return -ENOMEM;
2347 }
2348
2349 chip->chip_type = chip_type;
2350 chip->revision = revision;
2351
2352 spin_lock_init(&chip->reg_lock);
2353 spin_lock_init(&chip->rates[0].lock);
2354 spin_lock_init(&chip->rates[1].lock);
2355 chip->card = card;
2356 chip->pci = pci;
2357 chip->irq = -1;
2358
2359 pci_read_config_byte(pci, VIA_FUNC_ENABLE, &chip->old_legacy);
2360 pci_read_config_byte(pci, VIA_PNP_CONTROL, &chip->old_legacy_cfg);
2361 pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE,
2362 chip->old_legacy & ~(VIA_FUNC_ENABLE_SB|VIA_FUNC_ENABLE_FM));
2363
2364 if ((err = pci_request_regions(pci, card->driver)) < 0) {
2365 kfree(chip);
2366 pci_disable_device(pci);
2367 return err;
2368 }
2369 chip->port = pci_resource_start(pci, 0);
2370 if (request_irq(pci->irq,
2371 chip_type == TYPE_VIA8233 ?
2372 snd_via8233_interrupt : snd_via686_interrupt,
2373 IRQF_SHARED,
2374 KBUILD_MODNAME, chip)) {
2375 dev_err(card->dev, "unable to grab IRQ %d\n", pci->irq);
2376 snd_via82xx_free(chip);
2377 return -EBUSY;
2378 }
2379 chip->irq = pci->irq;
2380 card->sync_irq = chip->irq;
2381 if (ac97_clock >= 8000 && ac97_clock <= 48000)
2382 chip->ac97_clock = ac97_clock;
2383
2384 if ((err = snd_via82xx_chip_init(chip)) < 0) {
2385 snd_via82xx_free(chip);
2386 return err;
2387 }
2388
2389 if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
2390 snd_via82xx_free(chip);
2391 return err;
2392 }
2393
2394 /* The 8233 ac97 controller does not implement the master bit
2395 * in the pci command register. IMHO this is a violation of the PCI spec.
2396 * We call pci_set_master here because it does not hurt. */
2397 pci_set_master(pci);
2398
2399 *r_via = chip;
2400 return 0;
2401 }
2402
2403 struct via823x_info {
2404 int revision;
2405 char *name;
2406 int type;
2407 };
2408 static const struct via823x_info via823x_cards[] = {
2409 { VIA_REV_PRE_8233, "VIA 8233-Pre", TYPE_VIA8233 },
2410 { VIA_REV_8233C, "VIA 8233C", TYPE_VIA8233 },
2411 { VIA_REV_8233, "VIA 8233", TYPE_VIA8233 },
2412 { VIA_REV_8233A, "VIA 8233A", TYPE_VIA8233A },
2413 { VIA_REV_8235, "VIA 8235", TYPE_VIA8233 },
2414 { VIA_REV_8237, "VIA 8237", TYPE_VIA8233 },
2415 { VIA_REV_8251, "VIA 8251", TYPE_VIA8233 },
2416 };
2417
2418 /*
2419 * auto detection of DXS channel supports.
2420 */
2421
2422 static const struct snd_pci_quirk dxs_allowlist[] = {
2423 SND_PCI_QUIRK(0x1005, 0x4710, "Avance Logic Mobo", VIA_DXS_ENABLE),
2424 SND_PCI_QUIRK(0x1019, 0x0996, "ESC Mobo", VIA_DXS_48K),
2425 SND_PCI_QUIRK(0x1019, 0x0a81, "ECS K7VTA3 v8.0", VIA_DXS_NO_VRA),
2426 SND_PCI_QUIRK(0x1019, 0x0a85, "ECS L7VMM2", VIA_DXS_NO_VRA),
2427 SND_PCI_QUIRK_VENDOR(0x1019, "ESC K8", VIA_DXS_SRC),
2428 SND_PCI_QUIRK(0x1019, 0xaa01, "ESC K8T890-A", VIA_DXS_SRC),
2429 SND_PCI_QUIRK(0x1025, 0x0033, "Acer Inspire 1353LM", VIA_DXS_NO_VRA),
2430 SND_PCI_QUIRK(0x1025, 0x0046, "Acer Aspire 1524 WLMi", VIA_DXS_SRC),
2431 SND_PCI_QUIRK_VENDOR(0x1043, "ASUS A7/A8", VIA_DXS_NO_VRA),
2432 SND_PCI_QUIRK_VENDOR(0x1071, "Diverse Notebook", VIA_DXS_NO_VRA),
2433 SND_PCI_QUIRK(0x10cf, 0x118e, "FSC Laptop", VIA_DXS_ENABLE),
2434 SND_PCI_QUIRK_VENDOR(0x1106, "ASRock", VIA_DXS_SRC),
2435 SND_PCI_QUIRK(0x1297, 0xa231, "Shuttle AK31v2", VIA_DXS_SRC),
2436 SND_PCI_QUIRK(0x1297, 0xa232, "Shuttle", VIA_DXS_SRC),
2437 SND_PCI_QUIRK(0x1297, 0xc160, "Shuttle Sk41G", VIA_DXS_SRC),
2438 SND_PCI_QUIRK(0x1458, 0xa002, "Gigabyte GA-7VAXP", VIA_DXS_ENABLE),
2439 SND_PCI_QUIRK(0x1462, 0x3800, "MSI KT266", VIA_DXS_ENABLE),
2440 SND_PCI_QUIRK(0x1462, 0x7120, "MSI KT4V", VIA_DXS_ENABLE),
2441 SND_PCI_QUIRK(0x1462, 0x7142, "MSI K8MM-V", VIA_DXS_ENABLE),
2442 SND_PCI_QUIRK_VENDOR(0x1462, "MSI Mobo", VIA_DXS_SRC),
2443 SND_PCI_QUIRK(0x147b, 0x1401, "ABIT KD7(-RAID)", VIA_DXS_ENABLE),
2444 SND_PCI_QUIRK(0x147b, 0x1411, "ABIT VA-20", VIA_DXS_ENABLE),
2445 SND_PCI_QUIRK(0x147b, 0x1413, "ABIT KV8 Pro", VIA_DXS_ENABLE),
2446 SND_PCI_QUIRK(0x147b, 0x1415, "ABIT AV8", VIA_DXS_NO_VRA),
2447 SND_PCI_QUIRK(0x14ff, 0x0403, "Twinhead mobo", VIA_DXS_ENABLE),
2448 SND_PCI_QUIRK(0x14ff, 0x0408, "Twinhead laptop", VIA_DXS_SRC),
2449 SND_PCI_QUIRK(0x1558, 0x4701, "Clevo D470", VIA_DXS_SRC),
2450 SND_PCI_QUIRK(0x1584, 0x8120, "Diverse Laptop", VIA_DXS_ENABLE),
2451 SND_PCI_QUIRK(0x1584, 0x8123, "Targa/Uniwill", VIA_DXS_NO_VRA),
2452 SND_PCI_QUIRK(0x161f, 0x202b, "Amira Notebook", VIA_DXS_NO_VRA),
2453 SND_PCI_QUIRK(0x161f, 0x2032, "m680x machines", VIA_DXS_48K),
2454 SND_PCI_QUIRK(0x1631, 0xe004, "PB EasyNote 3174", VIA_DXS_ENABLE),
2455 SND_PCI_QUIRK(0x1695, 0x3005, "EPoX EP-8K9A", VIA_DXS_ENABLE),
2456 SND_PCI_QUIRK_VENDOR(0x1695, "EPoX mobo", VIA_DXS_SRC),
2457 SND_PCI_QUIRK_VENDOR(0x16f3, "Jetway K8", VIA_DXS_SRC),
2458 SND_PCI_QUIRK_VENDOR(0x1734, "FSC Laptop", VIA_DXS_SRC),
2459 SND_PCI_QUIRK(0x1849, 0x3059, "ASRock K7VM2", VIA_DXS_NO_VRA),
2460 SND_PCI_QUIRK_VENDOR(0x1849, "ASRock mobo", VIA_DXS_SRC),
2461 SND_PCI_QUIRK(0x1919, 0x200a, "Soltek SL-K8", VIA_DXS_NO_VRA),
2462 SND_PCI_QUIRK(0x4005, 0x4710, "MSI K7T266", VIA_DXS_SRC),
2463 { } /* terminator */
2464 };
2465
2466 static int check_dxs_list(struct pci_dev *pci, int revision)
2467 {
2468 const struct snd_pci_quirk *w;
2469
2470 w = snd_pci_quirk_lookup(pci, dxs_allowlist);
2471 if (w) {
2472 dev_dbg(&pci->dev, "DXS allow list for %s found\n",
2473 snd_pci_quirk_name(w));
2474 return w->value;
2475 }
2476
2477 /* for newer revision, default to DXS_SRC */
2478 if (revision >= VIA_REV_8235)
2479 return VIA_DXS_SRC;
2480
2481 /*
2482 * not detected, try 48k rate only to be sure.
2483 */
2484 dev_info(&pci->dev, "Assuming DXS channels with 48k fixed sample rate.\n");
2485 dev_info(&pci->dev, " Please try dxs_support=5 option\n");
2486 dev_info(&pci->dev, " and report if it works on your machine.\n");
2487 dev_info(&pci->dev, " For more details, read ALSA-Configuration.txt.\n");
2488 return VIA_DXS_48K;
2489 };
2490
2491 static int snd_via82xx_probe(struct pci_dev *pci,
2492 const struct pci_device_id *pci_id)
2493 {
2494 struct snd_card *card;
2495 struct via82xx *chip;
2496 int chip_type = 0, card_type;
2497 unsigned int i;
2498 int err;
2499
2500 err = snd_card_new(&pci->dev, index, id, THIS_MODULE, 0, &card);
2501 if (err < 0)
2502 return err;
2503
2504 card_type = pci_id->driver_data;
2505 switch (card_type) {
2506 case TYPE_CARD_VIA686:
2507 strcpy(card->driver, "VIA686A");
2508 sprintf(card->shortname, "VIA 82C686A/B rev%x", pci->revision);
2509 chip_type = TYPE_VIA686;
2510 break;
2511 case TYPE_CARD_VIA8233:
2512 chip_type = TYPE_VIA8233;
2513 sprintf(card->shortname, "VIA 823x rev%x", pci->revision);
2514 for (i = 0; i < ARRAY_SIZE(via823x_cards); i++) {
2515 if (pci->revision == via823x_cards[i].revision) {
2516 chip_type = via823x_cards[i].type;
2517 strcpy(card->shortname, via823x_cards[i].name);
2518 break;
2519 }
2520 }
2521 if (chip_type != TYPE_VIA8233A) {
2522 if (dxs_support == VIA_DXS_AUTO)
2523 dxs_support = check_dxs_list(pci, pci->revision);
2524 /* force to use VIA8233 or 8233A model according to
2525 * dxs_support module option
2526 */
2527 if (dxs_support == VIA_DXS_DISABLE)
2528 chip_type = TYPE_VIA8233A;
2529 else
2530 chip_type = TYPE_VIA8233;
2531 }
2532 if (chip_type == TYPE_VIA8233A)
2533 strcpy(card->driver, "VIA8233A");
2534 else if (pci->revision >= VIA_REV_8237)
2535 strcpy(card->driver, "VIA8237"); /* no slog assignment */
2536 else
2537 strcpy(card->driver, "VIA8233");
2538 break;
2539 default:
2540 dev_err(card->dev, "invalid card type %d\n", card_type);
2541 err = -EINVAL;
2542 goto __error;
2543 }
2544
2545 if ((err = snd_via82xx_create(card, pci, chip_type, pci->revision,
2546 ac97_clock, &chip)) < 0)
2547 goto __error;
2548 card->private_data = chip;
2549 if ((err = snd_via82xx_mixer_new(chip, ac97_quirk)) < 0)
2550 goto __error;
2551
2552 if (chip_type == TYPE_VIA686) {
2553 if ((err = snd_via686_pcm_new(chip)) < 0 ||
2554 (err = snd_via686_init_misc(chip)) < 0)
2555 goto __error;
2556 } else {
2557 if (chip_type == TYPE_VIA8233A) {
2558 if ((err = snd_via8233a_pcm_new(chip)) < 0)
2559 goto __error;
2560 // chip->dxs_fixed = 1; /* FIXME: use 48k for DXS #3? */
2561 } else {
2562 if ((err = snd_via8233_pcm_new(chip)) < 0)
2563 goto __error;
2564 if (dxs_support == VIA_DXS_48K)
2565 chip->dxs_fixed = 1;
2566 else if (dxs_support == VIA_DXS_NO_VRA)
2567 chip->no_vra = 1;
2568 else if (dxs_support == VIA_DXS_SRC) {
2569 chip->no_vra = 1;
2570 chip->dxs_src = 1;
2571 }
2572 }
2573 if ((err = snd_via8233_init_misc(chip)) < 0)
2574 goto __error;
2575 }
2576
2577 /* disable interrupts */
2578 for (i = 0; i < chip->num_devs; i++)
2579 snd_via82xx_channel_reset(chip, &chip->devs[i]);
2580
2581 snprintf(card->longname, sizeof(card->longname),
2582 "%s with %s at %#lx, irq %d", card->shortname,
2583 snd_ac97_get_short_name(chip->ac97), chip->port, chip->irq);
2584
2585 snd_via82xx_proc_init(chip);
2586
2587 if ((err = snd_card_register(card)) < 0) {
2588 snd_card_free(card);
2589 return err;
2590 }
2591 pci_set_drvdata(pci, card);
2592 return 0;
2593
2594 __error:
2595 snd_card_free(card);
2596 return err;
2597 }
2598
2599 static void snd_via82xx_remove(struct pci_dev *pci)
2600 {
2601 snd_card_free(pci_get_drvdata(pci));
2602 }
2603
2604 static struct pci_driver via82xx_driver = {
2605 .name = KBUILD_MODNAME,
2606 .id_table = snd_via82xx_ids,
2607 .probe = snd_via82xx_probe,
2608 .remove = snd_via82xx_remove,
2609 .driver = {
2610 .pm = SND_VIA82XX_PM_OPS,
2611 },
2612 };
2613
2614 module_pci_driver(via82xx_driver);
Linux with added FPC-III support