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ALSA: via82xx - ignore buffer preallocation errors
[linux-2.6-block.git] / sound / pci / via82xx.c
CommitLineData
1da177e4
LT		 1/*
2 * ALSA driver for VIA VT82xx (South Bridge)
3 *
4 * VT82C686A/B/C, VT8233A/C, VT8235
5 *
c1017a4c 6 * Copyright (c) 2000 Jaroslav Kysela <perex@perex.cz>
1da177e4
LT		 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.
4f550df5
KW		 44 *
45 * Sep. 26, 2005 Karsten Wiese <annabellesgarden@yahoo.de>
46 * - Optimize position calculation for the 823x chips.
1da177e4
LT		 47 */
48
1da177e4
LT		 49#include <asm/io.h>
50#include <linux/delay.h>
51#include <linux/interrupt.h>
52#include <linux/init.h>
53#include <linux/pci.h>
54#include <linux/slab.h>
55#include <linux/gameport.h>
56#include <linux/moduleparam.h>
57#include <sound/core.h>
58#include <sound/pcm.h>
59#include <sound/pcm_params.h>
60#include <sound/info.h>
7058c042 61#include <sound/tlv.h>
1da177e4
LT		 62#include <sound/ac97_codec.h>
63#include <sound/mpu401.h>
64#include <sound/initval.h>
65
66#if 0
67#define POINTER_DEBUG
68#endif
69
c1017a4c 70MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
1da177e4
LT		 71MODULE_DESCRIPTION("VIA VT82xx audio");
72MODULE_LICENSE("GPL");
73MODULE_SUPPORTED_DEVICE("{{VIA,VT82C686A/B/C,pci},{VIA,VT8233A/C,8235}}");
74
75#if defined(CONFIG_GAMEPORT) || (defined(MODULE) && defined(CONFIG_GAMEPORT_MODULE))
76#define SUPPORT_JOYSTICK 1
77#endif
78
b7fe4622
CL		 79static int index = SNDRV_DEFAULT_IDX1; /* Index 0-MAX */
80static char *id = SNDRV_DEFAULT_STR1; /* ID for this card */
81static long mpu_port;
1da177e4 82#ifdef SUPPORT_JOYSTICK
b7fe4622 83static int joystick;
1da177e4 84#endif
b7fe4622
CL		 85static int ac97_clock = 48000;
86static char *ac97_quirk;
87static int dxs_support;
1da177e4 88
b7fe4622 89module_param(index, int, 0444);
1da177e4 90MODULE_PARM_DESC(index, "Index value for VIA 82xx bridge.");
b7fe4622 91module_param(id, charp, 0444);
1da177e4 92MODULE_PARM_DESC(id, "ID string for VIA 82xx bridge.");
b7fe4622 93module_param(mpu_port, long, 0444);
1da177e4
LT		 94MODULE_PARM_DESC(mpu_port, "MPU-401 port. (VT82C686x only)");
95#ifdef SUPPORT_JOYSTICK
b7fe4622 96module_param(joystick, bool, 0444);
1da177e4
LT		 97MODULE_PARM_DESC(joystick, "Enable joystick. (VT82C686x only)");
98#endif
b7fe4622 99module_param(ac97_clock, int, 0444);
1da177e4 100MODULE_PARM_DESC(ac97_clock, "AC'97 codec clock (default 48000Hz).");
b7fe4622 101module_param(ac97_quirk, charp, 0444);
1da177e4 102MODULE_PARM_DESC(ac97_quirk, "AC'97 workaround for strange hardware.");
b7fe4622 103module_param(dxs_support, int, 0444);
2d7eb7cb 104MODULE_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)");
1da177e4 105
2b3e584b
TI		 106/* just for backward compatibility */
107static int enable;
698444f3 108module_param(enable, bool, 0444);
2b3e584b 109
1da177e4 110
1da177e4
LT		 111/* revision numbers for via686 */
112#define VIA_REV_686_A 0x10
113#define VIA_REV_686_B 0x11
114#define VIA_REV_686_C 0x12
115#define VIA_REV_686_D 0x13
116#define VIA_REV_686_E 0x14
117#define VIA_REV_686_H 0x20
118
119/* revision numbers for via8233 */
120#define VIA_REV_PRE_8233 0x10 /* not in market */
121#define VIA_REV_8233C 0x20 /* 2 rec, 4 pb, 1 multi-pb */
122#define VIA_REV_8233 0x30 /* 2 rec, 4 pb, 1 multi-pb, spdif */
123#define VIA_REV_8233A 0x40 /* 1 rec, 1 multi-pb, spdf */
124#define VIA_REV_8235 0x50 /* 2 rec, 4 pb, 1 multi-pb, spdif */
125#define VIA_REV_8237 0x60
8263c65f 126#define VIA_REV_8251 0x70
1da177e4
LT		 127
128/*
129 * Direct registers
130 */
131
132#define VIAREG(via, x) ((via)->port + VIA_REG_##x)
133#define VIADEV_REG(viadev, x) ((viadev)->port + VIA_REG_##x)
134
135/* common offsets */
136#define VIA_REG_OFFSET_STATUS 0x00 /* byte - channel status */
137#define VIA_REG_STAT_ACTIVE 0x80 /* RO */
4f550df5 138#define VIA8233_SHADOW_STAT_ACTIVE 0x08 /* RO */
1da177e4
LT		 139#define VIA_REG_STAT_PAUSED 0x40 /* RO */
140#define VIA_REG_STAT_TRIGGER_QUEUED 0x08 /* RO */
141#define VIA_REG_STAT_STOPPED 0x04 /* RWC */
142#define VIA_REG_STAT_EOL 0x02 /* RWC */
143#define VIA_REG_STAT_FLAG 0x01 /* RWC */
144#define VIA_REG_OFFSET_CONTROL 0x01 /* byte - channel control */
145#define VIA_REG_CTRL_START 0x80 /* WO */
146#define VIA_REG_CTRL_TERMINATE 0x40 /* WO */
147#define VIA_REG_CTRL_AUTOSTART 0x20
148#define VIA_REG_CTRL_PAUSE 0x08 /* RW */
149#define VIA_REG_CTRL_INT_STOP 0x04
150#define VIA_REG_CTRL_INT_EOL 0x02
151#define VIA_REG_CTRL_INT_FLAG 0x01
152#define VIA_REG_CTRL_RESET 0x01 /* RW - probably reset? undocumented */
153#define VIA_REG_CTRL_INT (VIA_REG_CTRL_INT_FLAG | VIA_REG_CTRL_INT_EOL | VIA_REG_CTRL_AUTOSTART)
154#define VIA_REG_OFFSET_TYPE 0x02 /* byte - channel type (686 only) */
155#define VIA_REG_TYPE_AUTOSTART 0x80 /* RW - autostart at EOL */
156#define VIA_REG_TYPE_16BIT 0x20 /* RW */
157#define VIA_REG_TYPE_STEREO 0x10 /* RW */
158#define VIA_REG_TYPE_INT_LLINE 0x00
159#define VIA_REG_TYPE_INT_LSAMPLE 0x04
160#define VIA_REG_TYPE_INT_LESSONE 0x08
161#define VIA_REG_TYPE_INT_MASK 0x0c
162#define VIA_REG_TYPE_INT_EOL 0x02
163#define VIA_REG_TYPE_INT_FLAG 0x01
164#define VIA_REG_OFFSET_TABLE_PTR 0x04 /* dword - channel table pointer */
165#define VIA_REG_OFFSET_CURR_PTR 0x04 /* dword - channel current pointer */
166#define VIA_REG_OFFSET_STOP_IDX 0x08 /* dword - stop index, channel type, sample rate */
167#define VIA8233_REG_TYPE_16BIT 0x00200000 /* RW */
168#define VIA8233_REG_TYPE_STEREO 0x00100000 /* RW */
169#define VIA_REG_OFFSET_CURR_COUNT 0x0c /* dword - channel current count (24 bit) */
170#define VIA_REG_OFFSET_CURR_INDEX 0x0f /* byte - channel current index (for via8233 only) */
171
172#define DEFINE_VIA_REGSET(name,val) \
173enum {\
174 VIA_REG_##name##_STATUS = (val),\
175 VIA_REG_##name##_CONTROL = (val) + 0x01,\
176 VIA_REG_##name##_TYPE = (val) + 0x02,\
177 VIA_REG_##name##_TABLE_PTR = (val) + 0x04,\
178 VIA_REG_##name##_CURR_PTR = (val) + 0x04,\
179 VIA_REG_##name##_STOP_IDX = (val) + 0x08,\
180 VIA_REG_##name##_CURR_COUNT = (val) + 0x0c,\
181}
182
183/* playback block */
184DEFINE_VIA_REGSET(PLAYBACK, 0x00);
185DEFINE_VIA_REGSET(CAPTURE, 0x10);
186DEFINE_VIA_REGSET(FM, 0x20);
187
188/* AC'97 */
189#define VIA_REG_AC97 0x80 /* dword */
190#define VIA_REG_AC97_CODEC_ID_MASK (3<<30)
191#define VIA_REG_AC97_CODEC_ID_SHIFT 30
192#define VIA_REG_AC97_CODEC_ID_PRIMARY 0x00
193#define VIA_REG_AC97_CODEC_ID_SECONDARY 0x01
194#define VIA_REG_AC97_SECONDARY_VALID (1<<27)
195#define VIA_REG_AC97_PRIMARY_VALID (1<<25)
196#define VIA_REG_AC97_BUSY (1<<24)
197#define VIA_REG_AC97_READ (1<<23)
198#define VIA_REG_AC97_CMD_SHIFT 16
199#define VIA_REG_AC97_CMD_MASK 0x7e
200#define VIA_REG_AC97_DATA_SHIFT 0
201#define VIA_REG_AC97_DATA_MASK 0xffff
202
203#define VIA_REG_SGD_SHADOW 0x84 /* dword */
204/* via686 */
205#define VIA_REG_SGD_STAT_PB_FLAG (1<<0)
206#define VIA_REG_SGD_STAT_CP_FLAG (1<<1)
207#define VIA_REG_SGD_STAT_FM_FLAG (1<<2)
208#define VIA_REG_SGD_STAT_PB_EOL (1<<4)
209#define VIA_REG_SGD_STAT_CP_EOL (1<<5)
210#define VIA_REG_SGD_STAT_FM_EOL (1<<6)
211#define VIA_REG_SGD_STAT_PB_STOP (1<<8)
212#define VIA_REG_SGD_STAT_CP_STOP (1<<9)
213#define VIA_REG_SGD_STAT_FM_STOP (1<<10)
214#define VIA_REG_SGD_STAT_PB_ACTIVE (1<<12)
215#define VIA_REG_SGD_STAT_CP_ACTIVE (1<<13)
216#define VIA_REG_SGD_STAT_FM_ACTIVE (1<<14)
217/* via8233 */
218#define VIA8233_REG_SGD_STAT_FLAG (1<<0)
219#define VIA8233_REG_SGD_STAT_EOL (1<<1)
220#define VIA8233_REG_SGD_STAT_STOP (1<<2)
221#define VIA8233_REG_SGD_STAT_ACTIVE (1<<3)
222#define VIA8233_INTR_MASK(chan) ((VIA8233_REG_SGD_STAT_FLAG|VIA8233_REG_SGD_STAT_EOL) << ((chan) * 4))
223#define VIA8233_REG_SGD_CHAN_SDX 0
224#define VIA8233_REG_SGD_CHAN_MULTI 4
225#define VIA8233_REG_SGD_CHAN_REC 6
226#define VIA8233_REG_SGD_CHAN_REC1 7
227
228#define VIA_REG_GPI_STATUS 0x88
229#define VIA_REG_GPI_INTR 0x8c
230
231/* multi-channel and capture registers for via8233 */
232DEFINE_VIA_REGSET(MULTPLAY, 0x40);
233DEFINE_VIA_REGSET(CAPTURE_8233, 0x60);
234
235/* via8233-specific registers */
236#define VIA_REG_OFS_PLAYBACK_VOLUME_L 0x02 /* byte */
237#define VIA_REG_OFS_PLAYBACK_VOLUME_R 0x03 /* byte */
238#define VIA_REG_OFS_MULTPLAY_FORMAT 0x02 /* byte - format and channels */
239#define VIA_REG_MULTPLAY_FMT_8BIT 0x00
240#define VIA_REG_MULTPLAY_FMT_16BIT 0x80
241#define VIA_REG_MULTPLAY_FMT_CH_MASK 0x70 /* # channels << 4 (valid = 1,2,4,6) */
242#define VIA_REG_OFS_CAPTURE_FIFO 0x02 /* byte - bit 6 = fifo enable */
243#define VIA_REG_CAPTURE_FIFO_ENABLE 0x40
244
245#define VIA_DXS_MAX_VOLUME 31 /* max. volume (attenuation) of reg 0x32/33 */
246
247#define VIA_REG_CAPTURE_CHANNEL 0x63 /* byte - input select */
248#define VIA_REG_CAPTURE_CHANNEL_MIC 0x4
249#define VIA_REG_CAPTURE_CHANNEL_LINE 0
250#define VIA_REG_CAPTURE_SELECT_CODEC 0x03 /* recording source codec (0 = primary) */
251
252#define VIA_TBL_BIT_FLAG 0x40000000
253#define VIA_TBL_BIT_EOL 0x80000000
254
255/* pci space */
256#define VIA_ACLINK_STAT 0x40
257#define VIA_ACLINK_C11_READY 0x20
258#define VIA_ACLINK_C10_READY 0x10
259#define VIA_ACLINK_C01_READY 0x04 /* secondary codec ready */
260#define VIA_ACLINK_LOWPOWER 0x02 /* low-power state */
261#define VIA_ACLINK_C00_READY 0x01 /* primary codec ready */
262#define VIA_ACLINK_CTRL 0x41
263#define VIA_ACLINK_CTRL_ENABLE 0x80 /* 0: disable, 1: enable */
264#define VIA_ACLINK_CTRL_RESET 0x40 /* 0: assert, 1: de-assert */
265#define VIA_ACLINK_CTRL_SYNC 0x20 /* 0: release SYNC, 1: force SYNC hi */
266#define VIA_ACLINK_CTRL_SDO 0x10 /* 0: release SDO, 1: force SDO hi */
267#define VIA_ACLINK_CTRL_VRA 0x08 /* 0: disable VRA, 1: enable VRA */
268#define VIA_ACLINK_CTRL_PCM 0x04 /* 0: disable PCM, 1: enable PCM */
269#define VIA_ACLINK_CTRL_FM 0x02 /* via686 only */
270#define VIA_ACLINK_CTRL_SB 0x01 /* via686 only */
271#define VIA_ACLINK_CTRL_INIT (VIA_ACLINK_CTRL_ENABLE|\
272 VIA_ACLINK_CTRL_RESET|\
273 VIA_ACLINK_CTRL_PCM|\
274 VIA_ACLINK_CTRL_VRA)
275#define VIA_FUNC_ENABLE 0x42
276#define VIA_FUNC_MIDI_PNP 0x80 /* FIXME: it's 0x40 in the datasheet! */
277#define VIA_FUNC_MIDI_IRQMASK 0x40 /* FIXME: not documented! */
278#define VIA_FUNC_RX2C_WRITE 0x20
279#define VIA_FUNC_SB_FIFO_EMPTY 0x10
280#define VIA_FUNC_ENABLE_GAME 0x08
281#define VIA_FUNC_ENABLE_FM 0x04
282#define VIA_FUNC_ENABLE_MIDI 0x02
283#define VIA_FUNC_ENABLE_SB 0x01
284#define VIA_PNP_CONTROL 0x43
285#define VIA_FM_NMI_CTRL 0x48
286#define VIA8233_VOLCHG_CTRL 0x48
287#define VIA8233_SPDIF_CTRL 0x49
288#define VIA8233_SPDIF_DX3 0x08
289#define VIA8233_SPDIF_SLOT_MASK 0x03
290#define VIA8233_SPDIF_SLOT_1011 0x00
291#define VIA8233_SPDIF_SLOT_34 0x01
292#define VIA8233_SPDIF_SLOT_78 0x02
293#define VIA8233_SPDIF_SLOT_69 0x03
294
295/*
296 */
297
298#define VIA_DXS_AUTO 0
299#define VIA_DXS_ENABLE 1
300#define VIA_DXS_DISABLE 2
301#define VIA_DXS_48K 3
302#define VIA_DXS_NO_VRA 4
2d7eb7cb 303#define VIA_DXS_SRC 5
1da177e4
LT		 304
305
1da177e4
LT		 306/*
307 * pcm stream
308 */
309
310struct snd_via_sg_table {
311 unsigned int offset;
312 unsigned int size;
313} ;
314
315#define VIA_TABLE_SIZE 255
316
e437e3d7 317struct viadev {
1da177e4
LT		 318 unsigned int reg_offset;
319 unsigned long port;
320 int direction; /* playback = 0, capture = 1 */
e437e3d7 321 struct snd_pcm_substream *substream;
1da177e4
LT		 322 int running;
323 unsigned int tbl_entries; /* # descriptors */
324 struct snd_dma_buffer table;
325 struct snd_via_sg_table *idx_table;
326 /* for recovery from the unexpected pointer */
327 unsigned int lastpos;
328 unsigned int fragsize;
329 unsigned int bufsize;
330 unsigned int bufsize2;
4f550df5
KW		 331 int hwptr_done; /* processed frame position in the buffer */
332 int in_interrupt;
333 int shadow_shift;
1da177e4
LT		 334};
335
336
337enum { TYPE_CARD_VIA686 = 1, TYPE_CARD_VIA8233 };
338enum { TYPE_VIA686, TYPE_VIA8233, TYPE_VIA8233A };
339
340#define VIA_MAX_DEVS 7 /* 4 playback, 1 multi, 2 capture */
341
342struct via_rate_lock {
343 spinlock_t lock;
344 int rate;
345 int used;
346};
347
e437e3d7 348struct via82xx {
1da177e4
LT		 349 int irq;
350
351 unsigned long port;
352 struct resource *mpu_res;
353 int chip_type;
354 unsigned char revision;
355
356 unsigned char old_legacy;
357 unsigned char old_legacy_cfg;
358#ifdef CONFIG_PM
359 unsigned char legacy_saved;
360 unsigned char legacy_cfg_saved;
361 unsigned char spdif_ctrl_saved;
362 unsigned char capture_src_saved[2];
363 unsigned int mpu_port_saved;
364#endif
365
00f226d4
HM		 366 unsigned char playback_volume[4][2]; /* for VIA8233/C/8235; default = 0 */
367 unsigned char playback_volume_c[2]; /* for VIA8233/C/8235; default = 0 */
1da177e4
LT		 368
369 unsigned int intr_mask; /* SGD_SHADOW mask to check interrupts */
370
371 struct pci_dev *pci;
e437e3d7 372 struct snd_card *card;
1da177e4
LT		 373
374 unsigned int num_devs;
375 unsigned int playback_devno, multi_devno, capture_devno;
e437e3d7 376 struct viadev devs[VIA_MAX_DEVS];
1da177e4
LT		 377 struct via_rate_lock rates[2]; /* playback and capture */
378 unsigned int dxs_fixed: 1; /* DXS channel accepts only 48kHz */
379 unsigned int no_vra: 1; /* no need to set VRA on DXS channels */
2d7eb7cb 380 unsigned int dxs_src: 1; /* use full SRC capabilities of DXS */
1da177e4
LT		 381 unsigned int spdif_on: 1; /* only spdif rates work to external DACs */
382
e437e3d7
TI		 383 struct snd_pcm *pcms[2];
384 struct snd_rawmidi *rmidi;
1da177e4 385
e437e3d7
TI		 386 struct snd_ac97_bus *ac97_bus;
387 struct snd_ac97 *ac97;
1da177e4
LT		 388 unsigned int ac97_clock;
389 unsigned int ac97_secondary; /* secondary AC'97 codec is present */
390
391 spinlock_t reg_lock;
e437e3d7 392 struct snd_info_entry *proc_entry;
1da177e4
LT		 393
394#ifdef SUPPORT_JOYSTICK
395 struct gameport *gameport;
396#endif
397};
398
f40b6890 399static struct pci_device_id snd_via82xx_ids[] = {
4f550df5
KW		 400 /* 0x1106, 0x3058 */
401 { PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686_5, PCI_ANY_ID, PCI_ANY_ID, 0, 0, TYPE_CARD_VIA686, }, /* 686A */
402 /* 0x1106, 0x3059 */
403 { PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8233_5, PCI_ANY_ID, PCI_ANY_ID, 0, 0, TYPE_CARD_VIA8233, }, /* VT8233 */
1da177e4
LT		 404 { 0, }
405};
406
407MODULE_DEVICE_TABLE(pci, snd_via82xx_ids);
408
409/*
410 */
411
412/*
413 * allocate and initialize the descriptor buffers
414 * periods = number of periods
415 * fragsize = period size in bytes
416 */
e437e3d7 417static int build_via_table(struct viadev *dev, struct snd_pcm_substream *substream,
1da177e4
LT		 418 struct pci_dev *pci,
419 unsigned int periods, unsigned int fragsize)
420{
421 unsigned int i, idx, ofs, rest;
e437e3d7 422 struct via82xx *chip = snd_pcm_substream_chip(substream);
1da177e4
LT		 423
424 if (dev->table.area == NULL) {
425 /* the start of each lists must be aligned to 8 bytes,
426 * but the kernel pages are much bigger, so we don't care
427 */
428 if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(chip->pci),
429 PAGE_ALIGN(VIA_TABLE_SIZE * 2 * 8),
430 &dev->table) < 0)
431 return -ENOMEM;
432 }
433 if (! dev->idx_table) {
434 dev->idx_table = kmalloc(sizeof(*dev->idx_table) * VIA_TABLE_SIZE, GFP_KERNEL);
435 if (! dev->idx_table)
436 return -ENOMEM;
437 }
438
439 /* fill the entries */
440 idx = 0;
441 ofs = 0;
442 for (i = 0; i < periods; i++) {
443 rest = fragsize;
444 /* fill descriptors for a period.
445 * a period can be split to several descriptors if it's
446 * over page boundary.
447 */
448 do {
449 unsigned int r;
450 unsigned int flag;
77a23f26 451 unsigned int addr;
1da177e4
LT		 452
453 if (idx >= VIA_TABLE_SIZE) {
454 snd_printk(KERN_ERR "via82xx: too much table size!\n");
455 return -EINVAL;
456 }
77a23f26
TI		 457 addr = snd_pcm_sgbuf_get_addr(substream, ofs);
458 ((u32 *)dev->table.area)[idx << 1] = cpu_to_le32(addr);
1da177e4
LT		 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
e437e3d7 486static int clean_via_table(struct viadev *dev, struct snd_pcm_substream *substream,
1da177e4
LT		 487 struct pci_dev *pci)
488{
489 if (dev->table.area) {
490 snd_dma_free_pages(&dev->table);
491 dev->table.area = NULL;
492 }
4d572776
JJ		 493 kfree(dev->idx_table);
494 dev->idx_table = NULL;
1da177e4
LT		 495 return 0;
496}
497
498/*
499 * Basic I/O
500 */
501
e437e3d7 502static inline unsigned int snd_via82xx_codec_xread(struct via82xx *chip)
1da177e4
LT		 503{
504 return inl(VIAREG(chip, AC97));
505}
506
e437e3d7 507static inline void snd_via82xx_codec_xwrite(struct via82xx *chip, unsigned int val)
1da177e4
LT		 508{
509 outl(val, VIAREG(chip, AC97));
510}
511
e437e3d7 512static int snd_via82xx_codec_ready(struct via82xx *chip, int secondary)
1da177e4
LT		 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 }
e437e3d7
TI		 522 snd_printk(KERN_ERR "codec_ready: codec %i is not ready [0x%x]\n",
523 secondary, snd_via82xx_codec_xread(chip));
1da177e4
LT		 524 return -EIO;
525}
526
e437e3d7 527static int snd_via82xx_codec_valid(struct via82xx *chip, int secondary)
1da177e4
LT		 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
e437e3d7 544static void snd_via82xx_codec_wait(struct snd_ac97 *ac97)
1da177e4 545{
e437e3d7 546 struct via82xx *chip = ac97->private_data;
1da177e4
LT		 547 int err;
548 err = snd_via82xx_codec_ready(chip, ac97->num);
549 /* here we need to wait fairly for long time.. */
ef21ca24 550 msleep(500);
1da177e4
LT		 551}
552
e437e3d7 553static void snd_via82xx_codec_write(struct snd_ac97 *ac97,
1da177e4
LT		 554 unsigned short reg,
555 unsigned short val)
556{
e437e3d7 557 struct via82xx *chip = ac97->private_data;
1da177e4 558 unsigned int xval;
4f550df5 559
1da177e4
LT		 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
e437e3d7 568static unsigned short snd_via82xx_codec_read(struct snd_ac97 *ac97, unsigned short reg)
1da177e4 569{
e437e3d7 570 struct via82xx *chip = ac97->private_data;
1da177e4
LT		 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) {
e437e3d7
TI		 580 snd_printk(KERN_ERR "codec_read: codec %i is not valid [0x%x]\n",
581 ac97->num, snd_via82xx_codec_xread(chip));
1da177e4
LT		 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
e437e3d7 595static void snd_via82xx_channel_reset(struct via82xx *chip, struct viadev *viadev)
1da177e4
LT		 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;
4f550df5 608 viadev->hwptr_done = 0;
1da177e4
LT		 609}
610
611
612/*
613 * Interrupt handler
4f550df5 614 * Used for 686 and 8233A
1da177e4 615 */
7d12e780 616static irqreturn_t snd_via686_interrupt(int irq, void *dev_id)
1da177e4 617{
e437e3d7 618 struct via82xx *chip = dev_id;
1da177e4
LT		 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 */
7d12e780 626 return snd_mpu401_uart_interrupt(irq, chip->rmidi->private_data);
1da177e4
LT		 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++) {
e437e3d7 633 struct viadev *viadev = &chip->devs[i];
1da177e4 634 unsigned char c_status = inb(VIADEV_REG(viadev, OFFSET_STATUS));
4f550df5 635 if (! (c_status & (VIA_REG_STAT_EOL|VIA_REG_STAT_FLAG|VIA_REG_STAT_STOPPED)))
1da177e4
LT		 636 continue;
637 if (viadev->substream && viadev->running) {
4f550df5
KW		 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;
1da177e4
LT		 648 spin_unlock(&chip->reg_lock);
649 snd_pcm_period_elapsed(viadev->substream);
650 spin_lock(&chip->reg_lock);
4f550df5 651 viadev->in_interrupt = 0;
1da177e4
LT		 652 }
653 outb(c_status, VIADEV_REG(viadev, OFFSET_STATUS)); /* ack */
654 }
655 spin_unlock(&chip->reg_lock);
656 return IRQ_HANDLED;
657}
658
4f550df5
KW		 659/*
660 * Interrupt handler
661 */
7d12e780 662static irqreturn_t snd_via8233_interrupt(int irq, void *dev_id)
4f550df5 663{
e437e3d7 664 struct via82xx *chip = dev_id;
4f550df5
KW		 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++) {
e437e3d7
TI		 674 struct viadev *viadev = &chip->devs[i];
675 struct snd_pcm_substream *substream;
4f550df5
KW		 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
1da177e4
LT		 713/*
714 * PCM callbacks
715 */
716
717/*
718 * trigger callback
719 */
e437e3d7 720static int snd_via82xx_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
1da177e4 721{
e437e3d7
TI		 722 struct via82xx *chip = snd_pcm_substream_chip(substream);
723 struct viadev *viadev = substream->runtime->private_data;
1da177e4
LT		 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:
41e4845c 732 case SNDRV_PCM_TRIGGER_RESUME:
1da177e4
LT		 733 val |= VIA_REG_CTRL_START;
734 viadev->running = 1;
735 break;
736 case SNDRV_PCM_TRIGGER_STOP:
41e4845c 737 case SNDRV_PCM_TRIGGER_SUSPEND:
1da177e4
LT		 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) \
e437e3d7
TI		 767 ((pos) < viadev->lastpos && ((pos) >= viadev->bufsize2 ||\
768 viadev->lastpos < viadev->bufsize2))
1da177e4 769
e437e3d7
TI		 770static inline unsigned int calc_linear_pos(struct viadev *viadev, unsigned int idx,
771 unsigned int count)
1da177e4
LT		 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;
4f550df5
KW		 778 if (res >= viadev->bufsize)
779 res -= viadev->bufsize;
1da177e4
LT		 780
781 /* check the validity of the calculated position */
782 if (size < count) {
e437e3d7
TI		 783 snd_printd(KERN_ERR "invalid via82xx_cur_ptr (size = %d, count = %d)\n",
784 (int)size, (int)count);
1da177e4
LT		 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
e437e3d7
TI		 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);
1da177e4
LT		 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)) {
e437e3d7
TI		 810 snd_printd(KERN_ERR "invalid via82xx_cur_ptr (2), "
811 "using last valid pointer\n");
1da177e4
LT		 812 res = viadev->lastpos;
813 }
814 }
815 }
1da177e4
LT		 816 return res;
817}
818
819/*
820 * get the current pointer on via686
821 */
e437e3d7 822static snd_pcm_uframes_t snd_via686_pcm_pointer(struct snd_pcm_substream *substream)
1da177e4 823{
e437e3d7
TI		 824 struct via82xx *chip = snd_pcm_substream_chip(substream);
825 struct viadev *viadev = substream->runtime->private_data;
1da177e4
LT		 826 unsigned int idx, ptr, count, res;
827
da3cec35
TI		 828 if (snd_BUG_ON(!viadev->tbl_entries))
829 return 0;
1da177e4
LT		 830 if (!(inb(VIADEV_REG(viadev, OFFSET_STATUS)) & VIA_REG_STAT_ACTIVE))
831 return 0;
832
833 spin_lock(&chip->reg_lock);
834 count = inl(VIADEV_REG(viadev, OFFSET_CURR_COUNT)) & 0xffffff;
835 /* The via686a does not have the current index register,
836 * so we need to calculate the index from CURR_PTR.
837 */
838 ptr = inl(VIADEV_REG(viadev, OFFSET_CURR_PTR));
839 if (ptr <= (unsigned int)viadev->table.addr)
840 idx = 0;
841 else /* CURR_PTR holds the address + 8 */
842 idx = ((ptr - (unsigned int)viadev->table.addr) / 8 - 1) % viadev->tbl_entries;
843 res = calc_linear_pos(viadev, idx, count);
4f550df5 844 viadev->lastpos = res; /* remember the last position */
1da177e4
LT		 845 spin_unlock(&chip->reg_lock);
846
847 return bytes_to_frames(substream->runtime, res);
848}
849
850/*
851 * get the current pointer on via823x
852 */
e437e3d7 853static snd_pcm_uframes_t snd_via8233_pcm_pointer(struct snd_pcm_substream *substream)
1da177e4 854{
e437e3d7
TI		 855 struct via82xx *chip = snd_pcm_substream_chip(substream);
856 struct viadev *viadev = substream->runtime->private_data;
1da177e4 857 unsigned int idx, count, res;
4f550df5 858 int status;
1da177e4 859
da3cec35
TI		 860 if (snd_BUG_ON(!viadev->tbl_entries))
861 return 0;
4f550df5 862
1da177e4 863 spin_lock(&chip->reg_lock);
4f550df5
KW		 864 count = inl(VIADEV_REG(viadev, OFFSET_CURR_COUNT));
865 status = viadev->in_interrupt;
866 if (!status)
867 status = inb(VIADEV_REG(viadev, OFFSET_STATUS));
868
c6cc0e3b
BJ		 869 /* An apparent bug in the 8251 is worked around by sending a
870 * REG_CTRL_START. */
871 if (chip->revision == VIA_REV_8251 && (status & VIA_REG_STAT_EOL))
872 snd_via82xx_pcm_trigger(substream, SNDRV_PCM_TRIGGER_START);
873
4f550df5 874 if (!(status & VIA_REG_STAT_ACTIVE)) {
c6cc0e3b
BJ		 875 res = 0;
876 goto unlock;
4f550df5
KW		 877 }
878 if (count & 0xffffff) {
879 idx = count >> 24;
880 if (idx >= viadev->tbl_entries) {
1da177e4 881#ifdef POINTER_DEBUG
e437e3d7
TI		 882 printk(KERN_DEBUG "fail: invalid idx = %i/%i\n", idx,
883 viadev->tbl_entries);
1da177e4 884#endif
4f550df5
KW		 885 res = viadev->lastpos;
886 } else {
887 count &= 0xffffff;
888 res = calc_linear_pos(viadev, idx, count);
889 }
1da177e4 890 } else {
4f550df5
KW		 891 res = viadev->hwptr_done;
892 if (!viadev->in_interrupt) {
893 if (status & VIA_REG_STAT_EOL) {
894 res = 0;
895 } else
896 if (status & VIA_REG_STAT_FLAG) {
897 res += viadev->fragsize;
898 }
899 }
900 }
901unlock:
902 viadev->lastpos = res;
1da177e4
LT		 903 spin_unlock(&chip->reg_lock);
904
905 return bytes_to_frames(substream->runtime, res);
906}
907
908
909/*
910 * hw_params callback:
911 * allocate the buffer and build up the buffer description table
912 */
e437e3d7
TI		 913static int snd_via82xx_hw_params(struct snd_pcm_substream *substream,
914 struct snd_pcm_hw_params *hw_params)
1da177e4 915{
e437e3d7
TI		 916 struct via82xx *chip = snd_pcm_substream_chip(substream);
917 struct viadev *viadev = substream->runtime->private_data;
1da177e4
LT		 918 int err;
919
920 err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
921 if (err < 0)
922 return err;
923 err = build_via_table(viadev, substream, chip->pci,
924 params_periods(hw_params),
925 params_period_bytes(hw_params));
926 if (err < 0)
927 return err;
928
929 return 0;
930}
931
932/*
933 * hw_free callback:
934 * clean up the buffer description table and release the buffer
935 */
e437e3d7 936static int snd_via82xx_hw_free(struct snd_pcm_substream *substream)
1da177e4 937{
e437e3d7
TI		 938 struct via82xx *chip = snd_pcm_substream_chip(substream);
939 struct viadev *viadev = substream->runtime->private_data;
1da177e4
LT		 940
941 clean_via_table(viadev, substream, chip->pci);
942 snd_pcm_lib_free_pages(substream);
943 return 0;
944}
945
946
947/*
948 * set up the table pointer
949 */
e437e3d7 950static void snd_via82xx_set_table_ptr(struct via82xx *chip, struct viadev *viadev)
1da177e4
LT		 951{
952 snd_via82xx_codec_ready(chip, 0);
953 outl((u32)viadev->table.addr, VIADEV_REG(viadev, OFFSET_TABLE_PTR));
954 udelay(20);
955 snd_via82xx_codec_ready(chip, 0);
956}
957
958/*
959 * prepare callback for playback and capture on via686
960 */
e437e3d7
TI		 961static void via686_setup_format(struct via82xx *chip, struct viadev *viadev,
962 struct snd_pcm_runtime *runtime)
1da177e4
LT		 963{
964 snd_via82xx_channel_reset(chip, viadev);
965 /* this must be set after channel_reset */
966 snd_via82xx_set_table_ptr(chip, viadev);
967 outb(VIA_REG_TYPE_AUTOSTART |
968 (runtime->format == SNDRV_PCM_FORMAT_S16_LE ? VIA_REG_TYPE_16BIT : 0) |
969 (runtime->channels > 1 ? VIA_REG_TYPE_STEREO : 0) |
970 ((viadev->reg_offset & 0x10) == 0 ? VIA_REG_TYPE_INT_LSAMPLE : 0) |
971 VIA_REG_TYPE_INT_EOL |
972 VIA_REG_TYPE_INT_FLAG, VIADEV_REG(viadev, OFFSET_TYPE));
973}
974
e437e3d7 975static int snd_via686_playback_prepare(struct snd_pcm_substream *substream)
1da177e4 976{
e437e3d7
TI		 977 struct via82xx *chip = snd_pcm_substream_chip(substream);
978 struct viadev *viadev = substream->runtime->private_data;
979 struct snd_pcm_runtime *runtime = substream->runtime;
1da177e4
LT		 980
981 snd_ac97_set_rate(chip->ac97, AC97_PCM_FRONT_DAC_RATE, runtime->rate);
982 snd_ac97_set_rate(chip->ac97, AC97_SPDIF, runtime->rate);
983 via686_setup_format(chip, viadev, runtime);
984 return 0;
985}
986
e437e3d7 987static int snd_via686_capture_prepare(struct snd_pcm_substream *substream)
1da177e4 988{
e437e3d7
TI		 989 struct via82xx *chip = snd_pcm_substream_chip(substream);
990 struct viadev *viadev = substream->runtime->private_data;
991 struct snd_pcm_runtime *runtime = substream->runtime;
1da177e4
LT		 992
993 snd_ac97_set_rate(chip->ac97, AC97_PCM_LR_ADC_RATE, runtime->rate);
994 via686_setup_format(chip, viadev, runtime);
995 return 0;
996}
997
998/*
999 * lock the current rate
1000 */
1001static int via_lock_rate(struct via_rate_lock *rec, int rate)
1002{
1003 int changed = 0;
1004
1005 spin_lock_irq(&rec->lock);
1006 if (rec->rate != rate) {
1007 if (rec->rate && rec->used > 1) /* already set */
1008 changed = -EINVAL;
1009 else {
1010 rec->rate = rate;
1011 changed = 1;
1012 }
1013 }
1014 spin_unlock_irq(&rec->lock);
1015 return changed;
1016}
1017
1018/*
1019 * prepare callback for DSX playback on via823x
1020 */
e437e3d7 1021static int snd_via8233_playback_prepare(struct snd_pcm_substream *substream)
1da177e4 1022{
e437e3d7
TI		 1023 struct via82xx *chip = snd_pcm_substream_chip(substream);
1024 struct viadev *viadev = substream->runtime->private_data;
1025 struct snd_pcm_runtime *runtime = substream->runtime;
2d7eb7cb 1026 int ac97_rate = chip->dxs_src ? 48000 : runtime->rate;
1da177e4
LT		 1027 int rate_changed;
1028 u32 rbits;
1029
2d7eb7cb 1030 if ((rate_changed = via_lock_rate(&chip->rates[0], ac97_rate)) < 0)
1da177e4 1031 return rate_changed;
16d3f140 1032 if (rate_changed)
1da177e4
LT		 1033 snd_ac97_set_rate(chip->ac97, AC97_PCM_FRONT_DAC_RATE,
1034 chip->no_vra ? 48000 : runtime->rate);
16d3f140
TI		 1035 if (chip->spdif_on && viadev->reg_offset == 0x30)
1036 snd_ac97_set_rate(chip->ac97, AC97_SPDIF, runtime->rate);
1037
1da177e4
LT		 1038 if (runtime->rate == 48000)
1039 rbits = 0xfffff;
1040 else
e437e3d7
TI		 1041 rbits = (0x100000 / 48000) * runtime->rate +
1042 ((0x100000 % 48000) * runtime->rate) / 48000;
da3cec35 1043 snd_BUG_ON(rbits & ~0xfffff);
1da177e4
LT		 1044 snd_via82xx_channel_reset(chip, viadev);
1045 snd_via82xx_set_table_ptr(chip, viadev);
e437e3d7
TI		 1046 outb(chip->playback_volume[viadev->reg_offset / 0x10][0],
1047 VIADEV_REG(viadev, OFS_PLAYBACK_VOLUME_L));
1048 outb(chip->playback_volume[viadev->reg_offset / 0x10][1],
1049 VIADEV_REG(viadev, OFS_PLAYBACK_VOLUME_R));
1da177e4
LT		 1050 outl((runtime->format == SNDRV_PCM_FORMAT_S16_LE ? VIA8233_REG_TYPE_16BIT : 0) | /* format */
1051 (runtime->channels > 1 ? VIA8233_REG_TYPE_STEREO : 0) | /* stereo */
1052 rbits | /* rate */
1053 0xff000000, /* STOP index is never reached */
1054 VIADEV_REG(viadev, OFFSET_STOP_IDX));
1055 udelay(20);
1056 snd_via82xx_codec_ready(chip, 0);
1057 return 0;
1058}
1059
1060/*
1061 * prepare callback for multi-channel playback on via823x
1062 */
e437e3d7 1063static int snd_via8233_multi_prepare(struct snd_pcm_substream *substream)
1da177e4 1064{
e437e3d7
TI		 1065 struct via82xx *chip = snd_pcm_substream_chip(substream);
1066 struct viadev *viadev = substream->runtime->private_data;
1067 struct snd_pcm_runtime *runtime = substream->runtime;
1da177e4
LT		 1068 unsigned int slots;
1069 int fmt;
1070
1071 if (via_lock_rate(&chip->rates[0], runtime->rate) < 0)
1072 return -EINVAL;
1073 snd_ac97_set_rate(chip->ac97, AC97_PCM_FRONT_DAC_RATE, runtime->rate);
1074 snd_ac97_set_rate(chip->ac97, AC97_PCM_SURR_DAC_RATE, runtime->rate);
1075 snd_ac97_set_rate(chip->ac97, AC97_PCM_LFE_DAC_RATE, runtime->rate);
1076 snd_ac97_set_rate(chip->ac97, AC97_SPDIF, runtime->rate);
1077 snd_via82xx_channel_reset(chip, viadev);
1078 snd_via82xx_set_table_ptr(chip, viadev);
1079
e437e3d7
TI		 1080 fmt = (runtime->format == SNDRV_PCM_FORMAT_S16_LE) ?
1081 VIA_REG_MULTPLAY_FMT_16BIT : VIA_REG_MULTPLAY_FMT_8BIT;
1da177e4
LT		 1082 fmt |= runtime->channels << 4;
1083 outb(fmt, VIADEV_REG(viadev, OFS_MULTPLAY_FORMAT));
1084#if 0
1085 if (chip->revision == VIA_REV_8233A)
1086 slots = 0;
1087 else
1088#endif
1089 {
1090 /* set sample number to slot 3, 4, 7, 8, 6, 9 (for VIA8233/C,8235) */
1091 /* corresponding to FL, FR, RL, RR, C, LFE ?? */
1092 switch (runtime->channels) {
1093 case 1: slots = (1<<0) | (1<<4); break;
1094 case 2: slots = (1<<0) | (2<<4); break;
1095 case 3: slots = (1<<0) | (2<<4) | (5<<8); break;
1096 case 4: slots = (1<<0) | (2<<4) | (3<<8) | (4<<12); break;
1097 case 5: slots = (1<<0) | (2<<4) | (3<<8) | (4<<12) | (5<<16); break;
1098 case 6: slots = (1<<0) | (2<<4) | (3<<8) | (4<<12) | (5<<16) | (6<<20); break;
1099 default: slots = 0; break;
1100 }
1101 }
1102 /* STOP index is never reached */
1103 outl(0xff000000 | slots, VIADEV_REG(viadev, OFFSET_STOP_IDX));
1104 udelay(20);
1105 snd_via82xx_codec_ready(chip, 0);
1106 return 0;
1107}
1108
1109/*
1110 * prepare callback for capture on via823x
1111 */
e437e3d7 1112static int snd_via8233_capture_prepare(struct snd_pcm_substream *substream)
1da177e4 1113{
e437e3d7
TI		 1114 struct via82xx *chip = snd_pcm_substream_chip(substream);
1115 struct viadev *viadev = substream->runtime->private_data;
1116 struct snd_pcm_runtime *runtime = substream->runtime;
1da177e4
LT		 1117
1118 if (via_lock_rate(&chip->rates[1], runtime->rate) < 0)
1119 return -EINVAL;
1120 snd_ac97_set_rate(chip->ac97, AC97_PCM_LR_ADC_RATE, runtime->rate);
1121 snd_via82xx_channel_reset(chip, viadev);
1122 snd_via82xx_set_table_ptr(chip, viadev);
1123 outb(VIA_REG_CAPTURE_FIFO_ENABLE, VIADEV_REG(viadev, OFS_CAPTURE_FIFO));
1124 outl((runtime->format == SNDRV_PCM_FORMAT_S16_LE ? VIA8233_REG_TYPE_16BIT : 0) |
1125 (runtime->channels > 1 ? VIA8233_REG_TYPE_STEREO : 0) |
1126 0xff000000, /* STOP index is never reached */
1127 VIADEV_REG(viadev, OFFSET_STOP_IDX));
1128 udelay(20);
1129 snd_via82xx_codec_ready(chip, 0);
1130 return 0;
1131}
1132
1133
1134/*
1135 * pcm hardware definition, identical for both playback and capture
1136 */
e437e3d7 1137static struct snd_pcm_hardware snd_via82xx_hw =
1da177e4
LT		 1138{
1139 .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1140 SNDRV_PCM_INFO_BLOCK_TRANSFER |
1141 SNDRV_PCM_INFO_MMAP_VALID |
41e4845c 1142 /* SNDRV_PCM_INFO_RESUME | */
1da177e4
LT		 1143 SNDRV_PCM_INFO_PAUSE),
1144 .formats = SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
1145 .rates = SNDRV_PCM_RATE_48000,
1146 .rate_min = 48000,
1147 .rate_max = 48000,
1148 .channels_min = 1,
1149 .channels_max = 2,
1150 .buffer_bytes_max = 128 * 1024,
1151 .period_bytes_min = 32,
1152 .period_bytes_max = 128 * 1024,
1153 .periods_min = 2,
1154 .periods_max = VIA_TABLE_SIZE / 2,
1155 .fifo_size = 0,
1156};
1157
1158
1159/*
1160 * open callback skeleton
1161 */
e437e3d7
TI		 1162static int snd_via82xx_pcm_open(struct via82xx *chip, struct viadev *viadev,
1163 struct snd_pcm_substream *substream)
1da177e4 1164{
e437e3d7 1165 struct snd_pcm_runtime *runtime = substream->runtime;
1da177e4
LT		 1166 int err;
1167 struct via_rate_lock *ratep;
1168
1169 runtime->hw = snd_via82xx_hw;
1170
1171 /* set the hw rate condition */
1172 ratep = &chip->rates[viadev->direction];
1173 spin_lock_irq(&ratep->lock);
1174 ratep->used++;
1175 if (chip->spdif_on && viadev->reg_offset == 0x30) {
1176 /* DXS#3 and spdif is on */
1177 runtime->hw.rates = chip->ac97->rates[AC97_RATES_SPDIF];
1178 snd_pcm_limit_hw_rates(runtime);
1179 } else if (chip->dxs_fixed && viadev->reg_offset < 0x40) {
1180 /* fixed DXS playback rate */
1181 runtime->hw.rates = SNDRV_PCM_RATE_48000;
1182 runtime->hw.rate_min = runtime->hw.rate_max = 48000;
2d7eb7cb
SV		 1183 } else if (chip->dxs_src && viadev->reg_offset < 0x40) {
1184 /* use full SRC capabilities of DXS */
1185 runtime->hw.rates = (SNDRV_PCM_RATE_CONTINUOUS |
1186 SNDRV_PCM_RATE_8000_48000);
1187 runtime->hw.rate_min = 8000;
1188 runtime->hw.rate_max = 48000;
1da177e4
LT		 1189 } else if (! ratep->rate) {
1190 int idx = viadev->direction ? AC97_RATES_ADC : AC97_RATES_FRONT_DAC;
1191 runtime->hw.rates = chip->ac97->rates[idx];
1192 snd_pcm_limit_hw_rates(runtime);
1193 } else {
1194 /* a fixed rate */
1195 runtime->hw.rates = SNDRV_PCM_RATE_KNOT;
1196 runtime->hw.rate_max = runtime->hw.rate_min = ratep->rate;
1197 }
1198 spin_unlock_irq(&ratep->lock);
1199
1200 /* we may remove following constaint when we modify table entries
1201 in interrupt */
1202 if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
1203 return err;
1204
1205 runtime->private_data = viadev;
1206 viadev->substream = substream;
1207
1208 return 0;
1209}
1210
1211
1212/*
1213 * open callback for playback on via686 and via823x DSX
1214 */
e437e3d7 1215static int snd_via82xx_playback_open(struct snd_pcm_substream *substream)
1da177e4 1216{
e437e3d7
TI		 1217 struct via82xx *chip = snd_pcm_substream_chip(substream);
1218 struct viadev *viadev = &chip->devs[chip->playback_devno + substream->number];
1da177e4
LT		 1219 int err;
1220
1221 if ((err = snd_via82xx_pcm_open(chip, viadev, substream)) < 0)
1222 return err;
1223 return 0;
1224}
1225
1226/*
1227 * open callback for playback on via823x multi-channel
1228 */
e437e3d7 1229static int snd_via8233_multi_open(struct snd_pcm_substream *substream)
1da177e4 1230{
e437e3d7
TI		 1231 struct via82xx *chip = snd_pcm_substream_chip(substream);
1232 struct viadev *viadev = &chip->devs[chip->multi_devno];
1da177e4
LT		 1233 int err;
1234 /* channels constraint for VIA8233A
1235 * 3 and 5 channels are not supported
1236 */
1237 static unsigned int channels[] = {
1238 1, 2, 4, 6
1239 };
e437e3d7 1240 static struct snd_pcm_hw_constraint_list hw_constraints_channels = {
1da177e4
LT		 1241 .count = ARRAY_SIZE(channels),
1242 .list = channels,
1243 .mask = 0,
1244 };
1245
1246 if ((err = snd_via82xx_pcm_open(chip, viadev, substream)) < 0)
1247 return err;
1248 substream->runtime->hw.channels_max = 6;
1249 if (chip->revision == VIA_REV_8233A)
e437e3d7
TI		 1250 snd_pcm_hw_constraint_list(substream->runtime, 0,
1251 SNDRV_PCM_HW_PARAM_CHANNELS,
1252 &hw_constraints_channels);
1da177e4
LT		 1253 return 0;
1254}
1255
1256/*
1257 * open callback for capture on via686 and via823x
1258 */
e437e3d7 1259static int snd_via82xx_capture_open(struct snd_pcm_substream *substream)
1da177e4 1260{
e437e3d7
TI		 1261 struct via82xx *chip = snd_pcm_substream_chip(substream);
1262 struct viadev *viadev = &chip->devs[chip->capture_devno + substream->pcm->device];
1da177e4
LT		 1263
1264 return snd_via82xx_pcm_open(chip, viadev, substream);
1265}
1266
1267/*
1268 * close callback
1269 */
e437e3d7 1270static int snd_via82xx_pcm_close(struct snd_pcm_substream *substream)
1da177e4 1271{
e437e3d7
TI		 1272 struct via82xx *chip = snd_pcm_substream_chip(substream);
1273 struct viadev *viadev = substream->runtime->private_data;
1da177e4
LT		 1274 struct via_rate_lock *ratep;
1275
1276 /* release the rate lock */
1277 ratep = &chip->rates[viadev->direction];
1278 spin_lock_irq(&ratep->lock);
1279 ratep->used--;
1280 if (! ratep->used)
1281 ratep->rate = 0;
1282 spin_unlock_irq(&ratep->lock);
6dbe6628
TI		 1283 if (! ratep->rate) {
1284 if (! viadev->direction) {
1285 snd_ac97_update_power(chip->ac97,
1286 AC97_PCM_FRONT_DAC_RATE, 0);
1287 snd_ac97_update_power(chip->ac97,
1288 AC97_PCM_SURR_DAC_RATE, 0);
1289 snd_ac97_update_power(chip->ac97,
1290 AC97_PCM_LFE_DAC_RATE, 0);
1291 } else
1292 snd_ac97_update_power(chip->ac97,
1293 AC97_PCM_LR_ADC_RATE, 0);
1294 }
1da177e4
LT		 1295 viadev->substream = NULL;
1296 return 0;
1297}
1298
1299
1300/* via686 playback callbacks */
e437e3d7 1301static struct snd_pcm_ops snd_via686_playback_ops = {
1da177e4
LT		 1302 .open = snd_via82xx_playback_open,
1303 .close = snd_via82xx_pcm_close,
1304 .ioctl = snd_pcm_lib_ioctl,
1305 .hw_params = snd_via82xx_hw_params,
1306 .hw_free = snd_via82xx_hw_free,
1307 .prepare = snd_via686_playback_prepare,
1308 .trigger = snd_via82xx_pcm_trigger,
1309 .pointer = snd_via686_pcm_pointer,
1310 .page = snd_pcm_sgbuf_ops_page,
1311};
1312
1313/* via686 capture callbacks */
e437e3d7 1314static struct snd_pcm_ops snd_via686_capture_ops = {
1da177e4
LT		 1315 .open = snd_via82xx_capture_open,
1316 .close = snd_via82xx_pcm_close,
1317 .ioctl = snd_pcm_lib_ioctl,
1318 .hw_params = snd_via82xx_hw_params,
1319 .hw_free = snd_via82xx_hw_free,
1320 .prepare = snd_via686_capture_prepare,
1321 .trigger = snd_via82xx_pcm_trigger,
1322 .pointer = snd_via686_pcm_pointer,
1323 .page = snd_pcm_sgbuf_ops_page,
1324};
1325
1326/* via823x DSX playback callbacks */
e437e3d7 1327static struct snd_pcm_ops snd_via8233_playback_ops = {
1da177e4
LT		 1328 .open = snd_via82xx_playback_open,
1329 .close = snd_via82xx_pcm_close,
1330 .ioctl = snd_pcm_lib_ioctl,
1331 .hw_params = snd_via82xx_hw_params,
1332 .hw_free = snd_via82xx_hw_free,
1333 .prepare = snd_via8233_playback_prepare,
1334 .trigger = snd_via82xx_pcm_trigger,
1335 .pointer = snd_via8233_pcm_pointer,
1336 .page = snd_pcm_sgbuf_ops_page,
1337};
1338
1339/* via823x multi-channel playback callbacks */
e437e3d7 1340static struct snd_pcm_ops snd_via8233_multi_ops = {
1da177e4
LT		 1341 .open = snd_via8233_multi_open,
1342 .close = snd_via82xx_pcm_close,
1343 .ioctl = snd_pcm_lib_ioctl,
1344 .hw_params = snd_via82xx_hw_params,
1345 .hw_free = snd_via82xx_hw_free,
1346 .prepare = snd_via8233_multi_prepare,
1347 .trigger = snd_via82xx_pcm_trigger,
1348 .pointer = snd_via8233_pcm_pointer,
1349 .page = snd_pcm_sgbuf_ops_page,
1350};
1351
1352/* via823x capture callbacks */
e437e3d7 1353static struct snd_pcm_ops snd_via8233_capture_ops = {
1da177e4
LT		 1354 .open = snd_via82xx_capture_open,
1355 .close = snd_via82xx_pcm_close,
1356 .ioctl = snd_pcm_lib_ioctl,
1357 .hw_params = snd_via82xx_hw_params,
1358 .hw_free = snd_via82xx_hw_free,
1359 .prepare = snd_via8233_capture_prepare,
1360 .trigger = snd_via82xx_pcm_trigger,
1361 .pointer = snd_via8233_pcm_pointer,
1362 .page = snd_pcm_sgbuf_ops_page,
1363};
1364
1365
e437e3d7
TI		 1366static void init_viadev(struct via82xx *chip, int idx, unsigned int reg_offset,
1367 int shadow_pos, int direction)
1da177e4
LT		 1368{
1369 chip->devs[idx].reg_offset = reg_offset;
4f550df5 1370 chip->devs[idx].shadow_shift = shadow_pos * 4;
1da177e4
LT		 1371 chip->devs[idx].direction = direction;
1372 chip->devs[idx].port = chip->port + reg_offset;
1373}
1374
1375/*
1376 * create pcm instances for VIA8233, 8233C and 8235 (not 8233A)
1377 */
e437e3d7 1378static int __devinit snd_via8233_pcm_new(struct via82xx *chip)
1da177e4 1379{
e437e3d7 1380 struct snd_pcm *pcm;
1da177e4
LT		 1381 int i, err;
1382
1383 chip->playback_devno = 0; /* x 4 */
1384 chip->multi_devno = 4; /* x 1 */
1385 chip->capture_devno = 5; /* x 2 */
1386 chip->num_devs = 7;
1387 chip->intr_mask = 0x33033333; /* FLAG|EOL for rec0-1, mc, sdx0-3 */
1388
1389 /* PCM #0: 4 DSX playbacks and 1 capture */
1390 err = snd_pcm_new(chip->card, chip->card->shortname, 0, 4, 1, &pcm);
1391 if (err < 0)
1392 return err;
1393 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_via8233_playback_ops);
1394 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_via8233_capture_ops);
1395 pcm->private_data = chip;
1396 strcpy(pcm->name, chip->card->shortname);
1397 chip->pcms[0] = pcm;
1398 /* set up playbacks */
1399 for (i = 0; i < 4; i++)
4f550df5 1400 init_viadev(chip, i, 0x10 * i, i, 0);
1da177e4 1401 /* capture */
4f550df5 1402 init_viadev(chip, chip->capture_devno, VIA_REG_CAPTURE_8233_STATUS, 6, 1);
1da177e4 1403
a2e3961d
TI		 1404 snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
1405 snd_dma_pci_data(chip->pci),
1406 64*1024, 128*1024);
1da177e4
LT		 1407
1408 /* PCM #1: multi-channel playback and 2nd capture */
1409 err = snd_pcm_new(chip->card, chip->card->shortname, 1, 1, 1, &pcm);
1410 if (err < 0)
1411 return err;
1412 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_via8233_multi_ops);
1413 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_via8233_capture_ops);
1414 pcm->private_data = chip;
1415 strcpy(pcm->name, chip->card->shortname);
1416 chip->pcms[1] = pcm;
1417 /* set up playback */
4f550df5 1418 init_viadev(chip, chip->multi_devno, VIA_REG_MULTPLAY_STATUS, 4, 0);
1da177e4 1419 /* set up capture */
4f550df5 1420 init_viadev(chip, chip->capture_devno + 1, VIA_REG_CAPTURE_8233_STATUS + 0x10, 7, 1);
1da177e4 1421
a2e3961d
TI		 1422 snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
1423 snd_dma_pci_data(chip->pci),
1424 64*1024, 128*1024);
1da177e4
LT		 1425 return 0;
1426}
1427
1428/*
1429 * create pcm instances for VIA8233A
1430 */
e437e3d7 1431static int __devinit snd_via8233a_pcm_new(struct via82xx *chip)
1da177e4 1432{
e437e3d7 1433 struct snd_pcm *pcm;
1da177e4
LT		 1434 int err;
1435
1436 chip->multi_devno = 0;
1437 chip->playback_devno = 1;
1438 chip->capture_devno = 2;
1439 chip->num_devs = 3;
1440 chip->intr_mask = 0x03033000; /* FLAG|EOL for rec0, mc, sdx3 */
1441
1442 /* PCM #0: multi-channel playback and capture */
1443 err = snd_pcm_new(chip->card, chip->card->shortname, 0, 1, 1, &pcm);
1444 if (err < 0)
1445 return err;
1446 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_via8233_multi_ops);
1447 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_via8233_capture_ops);
1448 pcm->private_data = chip;
1449 strcpy(pcm->name, chip->card->shortname);
1450 chip->pcms[0] = pcm;
1451 /* set up playback */
4f550df5 1452 init_viadev(chip, chip->multi_devno, VIA_REG_MULTPLAY_STATUS, 4, 0);
1da177e4 1453 /* capture */
4f550df5 1454 init_viadev(chip, chip->capture_devno, VIA_REG_CAPTURE_8233_STATUS, 6, 1);
1da177e4 1455
a2e3961d
TI		 1456 snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
1457 snd_dma_pci_data(chip->pci),
1458 64*1024, 128*1024);
1da177e4
LT		 1459
1460 /* SPDIF supported? */
1461 if (! ac97_can_spdif(chip->ac97))
1462 return 0;
1463
1464 /* PCM #1: DXS3 playback (for spdif) */
1465 err = snd_pcm_new(chip->card, chip->card->shortname, 1, 1, 0, &pcm);
1466 if (err < 0)
1467 return err;
1468 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_via8233_playback_ops);
1469 pcm->private_data = chip;
1470 strcpy(pcm->name, chip->card->shortname);
1471 chip->pcms[1] = pcm;
1472 /* set up playback */
4f550df5 1473 init_viadev(chip, chip->playback_devno, 0x30, 3, 0);
1da177e4 1474
a2e3961d
TI		 1475 snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
1476 snd_dma_pci_data(chip->pci),
1477 64*1024, 128*1024)
1da177e4
LT		 1478 return 0;
1479}
1480
1481/*
1482 * create a pcm instance for via686a/b
1483 */
e437e3d7 1484static int __devinit snd_via686_pcm_new(struct via82xx *chip)
1da177e4 1485{
e437e3d7 1486 struct snd_pcm *pcm;
1da177e4
LT		 1487 int err;
1488
1489 chip->playback_devno = 0;
1490 chip->capture_devno = 1;
1491 chip->num_devs = 2;
1492 chip->intr_mask = 0x77; /* FLAG | EOL for PB, CP, FM */
1493
1494 err = snd_pcm_new(chip->card, chip->card->shortname, 0, 1, 1, &pcm);
1495 if (err < 0)
1496 return err;
1497 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_via686_playback_ops);
1498 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_via686_capture_ops);
1499 pcm->private_data = chip;
1500 strcpy(pcm->name, chip->card->shortname);
1501 chip->pcms[0] = pcm;
4f550df5
KW		 1502 init_viadev(chip, 0, VIA_REG_PLAYBACK_STATUS, 0, 0);
1503 init_viadev(chip, 1, VIA_REG_CAPTURE_STATUS, 0, 1);
1da177e4 1504
a2e3961d
TI		 1505 snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
1506 snd_dma_pci_data(chip->pci),
1507 64*1024, 128*1024);
1da177e4
LT		 1508 return 0;
1509}
1510
1511
1512/*
1513 * Mixer part
1514 */
1515
e437e3d7
TI		 1516static int snd_via8233_capture_source_info(struct snd_kcontrol *kcontrol,
1517 struct snd_ctl_elem_info *uinfo)
1da177e4
LT		 1518{
1519 /* formerly they were "Line" and "Mic", but it looks like that they
1520 * have nothing to do with the actual physical connections...
1521 */
1522 static char *texts[2] = {
1523 "Input1", "Input2"
1524 };
1525 uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
1526 uinfo->count = 1;
1527 uinfo->value.enumerated.items = 2;
1528 if (uinfo->value.enumerated.item >= 2)
1529 uinfo->value.enumerated.item = 1;
1530 strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
1531 return 0;
1532}
1533
e437e3d7
TI		 1534static int snd_via8233_capture_source_get(struct snd_kcontrol *kcontrol,
1535 struct snd_ctl_elem_value *ucontrol)
1da177e4 1536{
e437e3d7 1537 struct via82xx *chip = snd_kcontrol_chip(kcontrol);
1da177e4
LT		 1538 unsigned long port = chip->port + (kcontrol->id.index ? (VIA_REG_CAPTURE_CHANNEL + 0x10) : VIA_REG_CAPTURE_CHANNEL);
1539 ucontrol->value.enumerated.item[0] = inb(port) & VIA_REG_CAPTURE_CHANNEL_MIC ? 1 : 0;
1540 return 0;
1541}
1542
e437e3d7
TI		 1543static int snd_via8233_capture_source_put(struct snd_kcontrol *kcontrol,
1544 struct snd_ctl_elem_value *ucontrol)
1da177e4 1545{
e437e3d7 1546 struct via82xx *chip = snd_kcontrol_chip(kcontrol);
1da177e4
LT		 1547 unsigned long port = chip->port + (kcontrol->id.index ? (VIA_REG_CAPTURE_CHANNEL + 0x10) : VIA_REG_CAPTURE_CHANNEL);
1548 u8 val, oval;
1549
1550 spin_lock_irq(&chip->reg_lock);
1551 oval = inb(port);
1552 val = oval & ~VIA_REG_CAPTURE_CHANNEL_MIC;
1553 if (ucontrol->value.enumerated.item[0])
1554 val |= VIA_REG_CAPTURE_CHANNEL_MIC;
1555 if (val != oval)
1556 outb(val, port);
1557 spin_unlock_irq(&chip->reg_lock);
1558 return val != oval;
1559}
1560
e437e3d7 1561static struct snd_kcontrol_new snd_via8233_capture_source __devinitdata = {
1da177e4
LT		 1562 .name = "Input Source Select",
1563 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1564 .info = snd_via8233_capture_source_info,
1565 .get = snd_via8233_capture_source_get,
1566 .put = snd_via8233_capture_source_put,
1567};
1568
a5ce8890 1569#define snd_via8233_dxs3_spdif_info snd_ctl_boolean_mono_info
1da177e4 1570
e437e3d7
TI		 1571static int snd_via8233_dxs3_spdif_get(struct snd_kcontrol *kcontrol,
1572 struct snd_ctl_elem_value *ucontrol)
1da177e4 1573{
e437e3d7 1574 struct via82xx *chip = snd_kcontrol_chip(kcontrol);
1da177e4
LT		 1575 u8 val;
1576
1577 pci_read_config_byte(chip->pci, VIA8233_SPDIF_CTRL, &val);
1578 ucontrol->value.integer.value[0] = (val & VIA8233_SPDIF_DX3) ? 1 : 0;
1579 return 0;
1580}
1581
e437e3d7
TI		 1582static int snd_via8233_dxs3_spdif_put(struct snd_kcontrol *kcontrol,
1583 struct snd_ctl_elem_value *ucontrol)
1da177e4 1584{
e437e3d7 1585 struct via82xx *chip = snd_kcontrol_chip(kcontrol);
1da177e4
LT		 1586 u8 val, oval;
1587
1588 pci_read_config_byte(chip->pci, VIA8233_SPDIF_CTRL, &oval);
1589 val = oval & ~VIA8233_SPDIF_DX3;
1590 if (ucontrol->value.integer.value[0])
1591 val |= VIA8233_SPDIF_DX3;
1592 /* save the spdif flag for rate filtering */
1593 chip->spdif_on = ucontrol->value.integer.value[0] ? 1 : 0;
1594 if (val != oval) {
1595 pci_write_config_byte(chip->pci, VIA8233_SPDIF_CTRL, val);
1596 return 1;
1597 }
1598 return 0;
1599}
1600
e437e3d7 1601static struct snd_kcontrol_new snd_via8233_dxs3_spdif_control __devinitdata = {
10e8d78a 1602 .name = SNDRV_CTL_NAME_IEC958("Output ",NONE,SWITCH),
1da177e4
LT		 1603 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1604 .info = snd_via8233_dxs3_spdif_info,
1605 .get = snd_via8233_dxs3_spdif_get,
1606 .put = snd_via8233_dxs3_spdif_put,
1607};
1608
e437e3d7
TI		 1609static int snd_via8233_dxs_volume_info(struct snd_kcontrol *kcontrol,
1610 struct snd_ctl_elem_info *uinfo)
1da177e4
LT		 1611{
1612 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
1613 uinfo->count = 2;
1614 uinfo->value.integer.min = 0;
1615 uinfo->value.integer.max = VIA_DXS_MAX_VOLUME;
1616 return 0;
1617}
1618
e437e3d7
TI		 1619static int snd_via8233_dxs_volume_get(struct snd_kcontrol *kcontrol,
1620 struct snd_ctl_elem_value *ucontrol)
1da177e4 1621{
e437e3d7 1622 struct via82xx *chip = snd_kcontrol_chip(kcontrol);
00f226d4
HM		 1623 unsigned int idx = snd_ctl_get_ioff(kcontrol, &ucontrol->id);
1624
1625 ucontrol->value.integer.value[0] = VIA_DXS_MAX_VOLUME - chip->playback_volume[idx][0];
1626 ucontrol->value.integer.value[1] = VIA_DXS_MAX_VOLUME - chip->playback_volume[idx][1];
1627 return 0;
1628}
1629
e437e3d7
TI		 1630static int snd_via8233_pcmdxs_volume_get(struct snd_kcontrol *kcontrol,
1631 struct snd_ctl_elem_value *ucontrol)
00f226d4 1632{
e437e3d7 1633 struct via82xx *chip = snd_kcontrol_chip(kcontrol);
00f226d4
HM		 1634 ucontrol->value.integer.value[0] = VIA_DXS_MAX_VOLUME - chip->playback_volume_c[0];
1635 ucontrol->value.integer.value[1] = VIA_DXS_MAX_VOLUME - chip->playback_volume_c[1];
1da177e4
LT		 1636 return 0;
1637}
1638
e437e3d7
TI		 1639static int snd_via8233_dxs_volume_put(struct snd_kcontrol *kcontrol,
1640 struct snd_ctl_elem_value *ucontrol)
00f226d4 1641{
e437e3d7 1642 struct via82xx *chip = snd_kcontrol_chip(kcontrol);
00f226d4
HM		 1643 unsigned int idx = snd_ctl_get_ioff(kcontrol, &ucontrol->id);
1644 unsigned long port = chip->port + 0x10 * idx;
1645 unsigned char val;
1646 int i, change = 0;
1647
1648 for (i = 0; i < 2; i++) {
1649 val = ucontrol->value.integer.value[i];
1650 if (val > VIA_DXS_MAX_VOLUME)
1651 val = VIA_DXS_MAX_VOLUME;
1652 val = VIA_DXS_MAX_VOLUME - val;
1653 change |= val != chip->playback_volume[idx][i];
1654 if (change) {
1655 chip->playback_volume[idx][i] = val;
1656 outb(val, port + VIA_REG_OFS_PLAYBACK_VOLUME_L + i);
1657 }
1658 }
1659 return change;
1660}
1661
e437e3d7
TI		 1662static int snd_via8233_pcmdxs_volume_put(struct snd_kcontrol *kcontrol,
1663 struct snd_ctl_elem_value *ucontrol)
1da177e4 1664{
e437e3d7 1665 struct via82xx *chip = snd_kcontrol_chip(kcontrol);
1da177e4
LT		 1666 unsigned int idx;
1667 unsigned char val;
1668 int i, change = 0;
1669
1670 for (i = 0; i < 2; i++) {
1671 val = ucontrol->value.integer.value[i];
1672 if (val > VIA_DXS_MAX_VOLUME)
1673 val = VIA_DXS_MAX_VOLUME;
1674 val = VIA_DXS_MAX_VOLUME - val;
00f226d4 1675 if (val != chip->playback_volume_c[i]) {
1da177e4 1676 change = 1;
00f226d4 1677 chip->playback_volume_c[i] = val;
1da177e4
LT		 1678 for (idx = 0; idx < 4; idx++) {
1679 unsigned long port = chip->port + 0x10 * idx;
00f226d4 1680 chip->playback_volume[idx][i] = val;
1da177e4
LT		 1681 outb(val, port + VIA_REG_OFS_PLAYBACK_VOLUME_L + i);
1682 }
1683 }
1684 }
1685 return change;
1686}
1687
0cb29ea0 1688static const DECLARE_TLV_DB_SCALE(db_scale_dxs, -9450, 150, 1);
7058c042 1689
e437e3d7 1690static struct snd_kcontrol_new snd_via8233_pcmdxs_volume_control __devinitdata = {
1da177e4
LT		 1691 .name = "PCM Playback Volume",
1692 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
7058c042
TI		 1693 .access = (SNDRV_CTL_ELEM_ACCESS_READWRITE |
1694 SNDRV_CTL_ELEM_ACCESS_TLV_READ),
1da177e4 1695 .info = snd_via8233_dxs_volume_info,
00f226d4
HM		 1696 .get = snd_via8233_pcmdxs_volume_get,
1697 .put = snd_via8233_pcmdxs_volume_put,
7058c042 1698 .tlv = { .p = db_scale_dxs }
00f226d4
HM		 1699};
1700
e437e3d7 1701static struct snd_kcontrol_new snd_via8233_dxs_volume_control __devinitdata = {
00f226d4
HM		 1702 .name = "VIA DXS Playback Volume",
1703 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
7058c042
TI		 1704 .access = (SNDRV_CTL_ELEM_ACCESS_READWRITE |
1705 SNDRV_CTL_ELEM_ACCESS_TLV_READ),
00f226d4
HM		 1706 .count = 4,
1707 .info = snd_via8233_dxs_volume_info,
1da177e4
LT		 1708 .get = snd_via8233_dxs_volume_get,
1709 .put = snd_via8233_dxs_volume_put,
7058c042 1710 .tlv = { .p = db_scale_dxs }
1da177e4
LT		 1711};
1712
1713/*
1714 */
1715
e437e3d7 1716static void snd_via82xx_mixer_free_ac97_bus(struct snd_ac97_bus *bus)
1da177e4 1717{
e437e3d7 1718 struct via82xx *chip = bus->private_data;
1da177e4
LT		 1719 chip->ac97_bus = NULL;
1720}
1721
e437e3d7 1722static void snd_via82xx_mixer_free_ac97(struct snd_ac97 *ac97)
1da177e4 1723{
e437e3d7 1724 struct via82xx *chip = ac97->private_data;
1da177e4
LT		 1725 chip->ac97 = NULL;
1726}
1727
1728static struct ac97_quirk ac97_quirks[] = {
1729 {
69ad07cf
JK		 1730 .subvendor = 0x1106,
1731 .subdevice = 0x4161,
1da177e4
LT		 1732 .codec_id = 0x56494161, /* VT1612A */
1733 .name = "Soltek SL-75DRV5",
1734 .type = AC97_TUNE_NONE
1735 },
1736 { /* FIXME: which codec? */
69ad07cf
JK		 1737 .subvendor = 0x1106,
1738 .subdevice = 0x4161,
1da177e4
LT		 1739 .name = "ASRock K7VT2",
1740 .type = AC97_TUNE_HP_ONLY
1741 },
1742 {
69ad07cf
JK		 1743 .subvendor = 0x1019,
1744 .subdevice = 0x0a81,
1da177e4
LT		 1745 .name = "ECS K7VTA3",
1746 .type = AC97_TUNE_HP_ONLY
1747 },
1748 {
69ad07cf
JK		 1749 .subvendor = 0x1019,
1750 .subdevice = 0x0a85,
1da177e4
LT		 1751 .name = "ECS L7VMM2",
1752 .type = AC97_TUNE_HP_ONLY
1753 },
942fd1eb
WS		 1754 {
1755 .subvendor = 0x1019,
1756 .subdevice = 0x1841,
1757 .name = "ECS K7VTA3",
1758 .type = AC97_TUNE_HP_ONLY
1759 },
1da177e4 1760 {
69ad07cf
JK		 1761 .subvendor = 0x1849,
1762 .subdevice = 0x3059,
1da177e4
LT		 1763 .name = "ASRock K7VM2",
1764 .type = AC97_TUNE_HP_ONLY /* VT1616 */
1765 },
1766 {
69ad07cf
JK		 1767 .subvendor = 0x14cd,
1768 .subdevice = 0x7002,
1da177e4
LT		 1769 .name = "Unknown",
1770 .type = AC97_TUNE_ALC_JACK
1771 },
1772 {
69ad07cf
JK		 1773 .subvendor = 0x1071,
1774 .subdevice = 0x8590,
1da177e4
LT		 1775 .name = "Mitac Mobo",
1776 .type = AC97_TUNE_ALC_JACK
1777 },
1778 {
69ad07cf
JK		 1779 .subvendor = 0x161f,
1780 .subdevice = 0x202b,
1da177e4
LT		 1781 .name = "Arima Notebook",
1782 .type = AC97_TUNE_HP_ONLY,
1783 },
dac8dddd
TI		 1784 {
1785 .subvendor = 0x161f,
1786 .subdevice = 0x2032,
1787 .name = "Targa Traveller 811",
1788 .type = AC97_TUNE_HP_ONLY,
1789 },
d4199f01
DC		 1790 {
1791 .subvendor = 0x161f,
1792 .subdevice = 0x2032,
1793 .name = "m680x",
1794 .type = AC97_TUNE_HP_ONLY, /* http://launchpad.net/bugs/38546 */
1795 },
9674513d
TI		 1796 {
1797 .subvendor = 0x1297,
1798 .subdevice = 0xa232,
1799 .name = "Shuttle AK32VN",
1800 .type = AC97_TUNE_HP_ONLY
1801 },
1da177e4
LT		 1802 { } /* terminator */
1803};
1804
e437e3d7 1805static int __devinit snd_via82xx_mixer_new(struct via82xx *chip, const char *quirk_override)
1da177e4 1806{
e437e3d7 1807 struct snd_ac97_template ac97;
1da177e4 1808 int err;
e437e3d7 1809 static struct snd_ac97_bus_ops ops = {
1da177e4
LT		 1810 .write = snd_via82xx_codec_write,
1811 .read = snd_via82xx_codec_read,
1812 .wait = snd_via82xx_codec_wait,
1813 };
1814
1815 if ((err = snd_ac97_bus(chip->card, 0, &ops, chip, &chip->ac97_bus)) < 0)
1816 return err;
1817 chip->ac97_bus->private_free = snd_via82xx_mixer_free_ac97_bus;
1818 chip->ac97_bus->clock = chip->ac97_clock;
1da177e4
LT		 1819
1820 memset(&ac97, 0, sizeof(ac97));
1821 ac97.private_data = chip;
1822 ac97.private_free = snd_via82xx_mixer_free_ac97;
1823 ac97.pci = chip->pci;
f1a63a38 1824 ac97.scaps = AC97_SCAP_SKIP_MODEM | AC97_SCAP_POWER_SAVE;
1da177e4
LT		 1825 if ((err = snd_ac97_mixer(chip->ac97_bus, &ac97, &chip->ac97)) < 0)
1826 return err;
1827
1828 snd_ac97_tune_hardware(chip->ac97, ac97_quirks, quirk_override);
1829
1830 if (chip->chip_type != TYPE_VIA686) {
1831 /* use slot 10/11 */
1832 snd_ac97_update_bits(chip->ac97, AC97_EXTENDED_STATUS, 0x03 << 4, 0x03 << 4);
1833 }
1834
1835 return 0;
1836}
1837
1838#ifdef SUPPORT_JOYSTICK
1839#define JOYSTICK_ADDR 0x200
e437e3d7 1840static int __devinit snd_via686_create_gameport(struct via82xx *chip, unsigned char *legacy)
1da177e4
LT		 1841{
1842 struct gameport *gp;
1843 struct resource *r;
1844
b7fe4622 1845 if (!joystick)
1da177e4
LT		 1846 return -ENODEV;
1847
1848 r = request_region(JOYSTICK_ADDR, 8, "VIA686 gameport");
1849 if (!r) {
e437e3d7
TI		 1850 printk(KERN_WARNING "via82xx: cannot reserve joystick port 0x%#x\n",
1851 JOYSTICK_ADDR);
1da177e4
LT		 1852 return -EBUSY;
1853 }
1854
1855 chip->gameport = gp = gameport_allocate_port();
1856 if (!gp) {
1857 printk(KERN_ERR "via82xx: cannot allocate memory for gameport\n");
b1d5776d 1858 release_and_free_resource(r);
1da177e4
LT		 1859 return -ENOMEM;
1860 }
1861
1862 gameport_set_name(gp, "VIA686 Gameport");
1863 gameport_set_phys(gp, "pci%s/gameport0", pci_name(chip->pci));
1864 gameport_set_dev_parent(gp, &chip->pci->dev);
1865 gp->io = JOYSTICK_ADDR;
1866 gameport_set_port_data(gp, r);
1867
1868 /* Enable legacy joystick port */
1869 *legacy |= VIA_FUNC_ENABLE_GAME;
1870 pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE, *legacy);
1871
1872 gameport_register_port(chip->gameport);
1873
1874 return 0;
1875}
1876
e437e3d7 1877static void snd_via686_free_gameport(struct via82xx *chip)
1da177e4
LT		 1878{
1879 if (chip->gameport) {
1880 struct resource *r = gameport_get_port_data(chip->gameport);
1881
1882 gameport_unregister_port(chip->gameport);
1883 chip->gameport = NULL;
b1d5776d 1884 release_and_free_resource(r);
1da177e4
LT		 1885 }
1886}
1887#else
e437e3d7 1888static inline int snd_via686_create_gameport(struct via82xx *chip, unsigned char *legacy)
1da177e4
LT		 1889{
1890 return -ENOSYS;
1891}
e437e3d7 1892static inline void snd_via686_free_gameport(struct via82xx *chip) { }
1da177e4
LT		 1893#endif
1894
1895
1896/*
1897 *
1898 */
1899
e437e3d7 1900static int __devinit snd_via8233_init_misc(struct via82xx *chip)
1da177e4
LT		 1901{
1902 int i, err, caps;
1903 unsigned char val;
1904
1905 caps = chip->chip_type == TYPE_VIA8233A ? 1 : 2;
1906 for (i = 0; i < caps; i++) {
1907 snd_via8233_capture_source.index = i;
1908 err = snd_ctl_add(chip->card, snd_ctl_new1(&snd_via8233_capture_source, chip));
1909 if (err < 0)
1910 return err;
1911 }
1912 if (ac97_can_spdif(chip->ac97)) {
1913 err = snd_ctl_add(chip->card, snd_ctl_new1(&snd_via8233_dxs3_spdif_control, chip));
1914 if (err < 0)
1915 return err;
1916 }
1917 if (chip->chip_type != TYPE_VIA8233A) {
1918 /* when no h/w PCM volume control is found, use DXS volume control
1919 * as the PCM vol control
1920 */
e437e3d7 1921 struct snd_ctl_elem_id sid;
1da177e4
LT		 1922 memset(&sid, 0, sizeof(sid));
1923 strcpy(sid.name, "PCM Playback Volume");
1924 sid.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
1925 if (! snd_ctl_find_id(chip->card, &sid)) {
00f226d4
HM		 1926 snd_printd(KERN_INFO "Using DXS as PCM Playback\n");
1927 err = snd_ctl_add(chip->card, snd_ctl_new1(&snd_via8233_pcmdxs_volume_control, chip));
1928 if (err < 0)
1929 return err;
1930 }
1931 else /* Using DXS when PCM emulation is enabled is really weird */
1932 {
1933 /* Standalone DXS controls */
1da177e4
LT		 1934 err = snd_ctl_add(chip->card, snd_ctl_new1(&snd_via8233_dxs_volume_control, chip));
1935 if (err < 0)
1936 return err;
1937 }
1938 }
1da177e4
LT		 1939 /* select spdif data slot 10/11 */
1940 pci_read_config_byte(chip->pci, VIA8233_SPDIF_CTRL, &val);
1941 val = (val & ~VIA8233_SPDIF_SLOT_MASK) | VIA8233_SPDIF_SLOT_1011;
1942 val &= ~VIA8233_SPDIF_DX3; /* SPDIF off as default */
1943 pci_write_config_byte(chip->pci, VIA8233_SPDIF_CTRL, val);
1944
1945 return 0;
1946}
1947
e437e3d7 1948static int __devinit snd_via686_init_misc(struct via82xx *chip)
1da177e4
LT		 1949{
1950 unsigned char legacy, legacy_cfg;
1951 int rev_h = 0;
1952
1953 legacy = chip->old_legacy;
1954 legacy_cfg = chip->old_legacy_cfg;
1955 legacy |= VIA_FUNC_MIDI_IRQMASK; /* FIXME: correct? (disable MIDI) */
1956 legacy &= ~VIA_FUNC_ENABLE_GAME; /* disable joystick */
1957 if (chip->revision >= VIA_REV_686_H) {
1958 rev_h = 1;
b7fe4622
CL		 1959 if (mpu_port >= 0x200) { /* force MIDI */
1960 mpu_port &= 0xfffc;
1961 pci_write_config_dword(chip->pci, 0x18, mpu_port | 0x01);
1da177e4 1962#ifdef CONFIG_PM
b7fe4622 1963 chip->mpu_port_saved = mpu_port;
1da177e4
LT		 1964#endif
1965 } else {
b7fe4622 1966 mpu_port = pci_resource_start(chip->pci, 2);
1da177e4
LT		 1967 }
1968 } else {
b7fe4622 1969 switch (mpu_port) { /* force MIDI */
1da177e4
LT		 1970 case 0x300:
1971 case 0x310:
1972 case 0x320:
1973 case 0x330:
1974 legacy_cfg &= ~(3 << 2);
b7fe4622 1975 legacy_cfg |= (mpu_port & 0x0030) >> 2;
1da177e4
LT		 1976 break;
1977 default: /* no, use BIOS settings */
1978 if (legacy & VIA_FUNC_ENABLE_MIDI)
b7fe4622 1979 mpu_port = 0x300 + ((legacy_cfg & 0x000c) << 2);
1da177e4
LT		 1980 break;
1981 }
1982 }
b7fe4622
CL		 1983 if (mpu_port >= 0x200 &&
1984 (chip->mpu_res = request_region(mpu_port, 2, "VIA82xx MPU401"))
1985 != NULL) {
1da177e4
LT		 1986 if (rev_h)
1987 legacy |= VIA_FUNC_MIDI_PNP; /* enable PCI I/O 2 */
1988 legacy |= VIA_FUNC_ENABLE_MIDI;
1989 } else {
1990 if (rev_h)
1991 legacy &= ~VIA_FUNC_MIDI_PNP; /* disable PCI I/O 2 */
1992 legacy &= ~VIA_FUNC_ENABLE_MIDI;
b7fe4622 1993 mpu_port = 0;
1da177e4
LT		 1994 }
1995
1996 pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE, legacy);
1997 pci_write_config_byte(chip->pci, VIA_PNP_CONTROL, legacy_cfg);
1998 if (chip->mpu_res) {
1999 if (snd_mpu401_uart_new(chip->card, 0, MPU401_HW_VIA686A,
302e4c2f 2000 mpu_port, MPU401_INFO_INTEGRATED,
1da177e4 2001 chip->irq, 0, &chip->rmidi) < 0) {
b7fe4622
CL		 2002 printk(KERN_WARNING "unable to initialize MPU-401"
2003 " at 0x%lx, skipping\n", mpu_port);
1da177e4
LT		 2004 legacy &= ~VIA_FUNC_ENABLE_MIDI;
2005 } else {
2006 legacy &= ~VIA_FUNC_MIDI_IRQMASK; /* enable MIDI interrupt */
2007 }
2008 pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE, legacy);
2009 }
2010
b7fe4622 2011 snd_via686_create_gameport(chip, &legacy);
1da177e4
LT		 2012
2013#ifdef CONFIG_PM
2014 chip->legacy_saved = legacy;
2015 chip->legacy_cfg_saved = legacy_cfg;
2016#endif
2017
2018 return 0;
2019}
2020
2021
2022/*
2023 * proc interface
2024 */
e437e3d7
TI		 2025static void snd_via82xx_proc_read(struct snd_info_entry *entry,
2026 struct snd_info_buffer *buffer)
1da177e4 2027{
e437e3d7 2028 struct via82xx *chip = entry->private_data;
1da177e4
LT		 2029 int i;
2030
2031 snd_iprintf(buffer, "%s\n\n", chip->card->longname);
2032 for (i = 0; i < 0xa0; i += 4) {
2033 snd_iprintf(buffer, "%02x: %08x\n", i, inl(chip->port + i));
2034 }
2035}
2036
e437e3d7 2037static void __devinit snd_via82xx_proc_init(struct via82xx *chip)
1da177e4 2038{
e437e3d7 2039 struct snd_info_entry *entry;
1da177e4
LT		 2040
2041 if (! snd_card_proc_new(chip->card, "via82xx", &entry))
bf850204 2042 snd_info_set_text_ops(entry, chip, snd_via82xx_proc_read);
1da177e4
LT		 2043}
2044
2045/*
2046 *
2047 */
2048
e437e3d7 2049static int snd_via82xx_chip_init(struct via82xx *chip)
1da177e4
LT		 2050{
2051 unsigned int val;
ef21ca24 2052 unsigned long end_time;
1da177e4
LT		 2053 unsigned char pval;
2054
2055#if 0 /* broken on K7M? */
2056 if (chip->chip_type == TYPE_VIA686)
2057 /* disable all legacy ports */
2058 pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE, 0);
2059#endif
2060 pci_read_config_byte(chip->pci, VIA_ACLINK_STAT, &pval);
2061 if (! (pval & VIA_ACLINK_C00_READY)) { /* codec not ready? */
2062 /* deassert ACLink reset, force SYNC */
2063 pci_write_config_byte(chip->pci, VIA_ACLINK_CTRL,
2064 VIA_ACLINK_CTRL_ENABLE |
2065 VIA_ACLINK_CTRL_RESET |
2066 VIA_ACLINK_CTRL_SYNC);
2067 udelay(100);
2068#if 1 /* FIXME: should we do full reset here for all chip models? */
2069 pci_write_config_byte(chip->pci, VIA_ACLINK_CTRL, 0x00);
2070 udelay(100);
2071#else
2072 /* deassert ACLink reset, force SYNC (warm AC'97 reset) */
2073 pci_write_config_byte(chip->pci, VIA_ACLINK_CTRL,
2074 VIA_ACLINK_CTRL_RESET|VIA_ACLINK_CTRL_SYNC);
2075 udelay(2);
2076#endif
2077 /* ACLink on, deassert ACLink reset, VSR, SGD data out */
2078 /* note - FM data out has trouble with non VRA codecs !! */
2079 pci_write_config_byte(chip->pci, VIA_ACLINK_CTRL, VIA_ACLINK_CTRL_INIT);
2080 udelay(100);
2081 }
2082
2083 /* Make sure VRA is enabled, in case we didn't do a
2084 * complete codec reset, above */
2085 pci_read_config_byte(chip->pci, VIA_ACLINK_CTRL, &pval);
2086 if ((pval & VIA_ACLINK_CTRL_INIT) != VIA_ACLINK_CTRL_INIT) {
2087 /* ACLink on, deassert ACLink reset, VSR, SGD data out */
2088 /* note - FM data out has trouble with non VRA codecs !! */
2089 pci_write_config_byte(chip->pci, VIA_ACLINK_CTRL, VIA_ACLINK_CTRL_INIT);
2090 udelay(100);
2091 }
2092
2093 /* wait until codec ready */
ef21ca24 2094 end_time = jiffies + msecs_to_jiffies(750);
1da177e4
LT		 2095 do {
2096 pci_read_config_byte(chip->pci, VIA_ACLINK_STAT, &pval);
2097 if (pval & VIA_ACLINK_C00_READY) /* primary codec ready */
2098 break;
d86d0193 2099 schedule_timeout_uninterruptible(1);
ef21ca24 2100 } while (time_before(jiffies, end_time));
1da177e4
LT		 2101
2102 if ((val = snd_via82xx_codec_xread(chip)) & VIA_REG_AC97_BUSY)
99b359ba 2103 snd_printk(KERN_ERR "AC'97 codec is not ready [0x%x]\n", val);
1da177e4
LT		 2104
2105#if 0 /* FIXME: we don't support the second codec yet so skip the detection now.. */
2106 snd_via82xx_codec_xwrite(chip, VIA_REG_AC97_READ |
2107 VIA_REG_AC97_SECONDARY_VALID |
2108 (VIA_REG_AC97_CODEC_ID_SECONDARY << VIA_REG_AC97_CODEC_ID_SHIFT));
ef21ca24 2109 end_time = jiffies + msecs_to_jiffies(750);
1da177e4
LT		 2110 snd_via82xx_codec_xwrite(chip, VIA_REG_AC97_READ |
2111 VIA_REG_AC97_SECONDARY_VALID |
2112 (VIA_REG_AC97_CODEC_ID_SECONDARY << VIA_REG_AC97_CODEC_ID_SHIFT));
2113 do {
2114 if ((val = snd_via82xx_codec_xread(chip)) & VIA_REG_AC97_SECONDARY_VALID) {
2115 chip->ac97_secondary = 1;
2116 goto __ac97_ok2;
2117 }
d86d0193 2118 schedule_timeout_uninterruptible(1);
ef21ca24 2119 } while (time_before(jiffies, end_time));
1da177e4
LT		 2120 /* This is ok, the most of motherboards have only one codec */
2121
2122 __ac97_ok2:
2123#endif
2124
2125 if (chip->chip_type == TYPE_VIA686) {
2126 /* route FM trap to IRQ, disable FM trap */
2127 pci_write_config_byte(chip->pci, VIA_FM_NMI_CTRL, 0);
2128 /* disable all GPI interrupts */
2129 outl(0, VIAREG(chip, GPI_INTR));
2130 }
2131
2132 if (chip->chip_type != TYPE_VIA686) {
2133 /* Workaround for Award BIOS bug:
2134 * DXS channels don't work properly with VRA if MC97 is disabled.
2135 */
2136 struct pci_dev *pci;
0dd119f7 2137 pci = pci_get_device(0x1106, 0x3068, NULL); /* MC97 */
1da177e4
LT		 2138 if (pci) {
2139 unsigned char data;
2140 pci_read_config_byte(pci, 0x44, &data);
2141 pci_write_config_byte(pci, 0x44, data | 0x40);
0dd119f7 2142 pci_dev_put(pci);
1da177e4
LT		 2143 }
2144 }
2145
2146 if (chip->chip_type != TYPE_VIA8233A) {
2147 int i, idx;
2148 for (idx = 0; idx < 4; idx++) {
2149 unsigned long port = chip->port + 0x10 * idx;
00f226d4
HM		 2150 for (i = 0; i < 2; i++) {
2151 chip->playback_volume[idx][i]=chip->playback_volume_c[i];
e437e3d7
TI		 2152 outb(chip->playback_volume_c[i],
2153 port + VIA_REG_OFS_PLAYBACK_VOLUME_L + i);
00f226d4 2154 }
1da177e4
LT		 2155 }
2156 }
2157
2158 return 0;
2159}
2160
2161#ifdef CONFIG_PM
2162/*
2163 * power management
2164 */
57feb835 2165static int snd_via82xx_suspend(struct pci_dev *pci, pm_message_t state)
1da177e4 2166{
57feb835
TI		 2167 struct snd_card *card = pci_get_drvdata(pci);
2168 struct via82xx *chip = card->private_data;
1da177e4
LT		 2169 int i;
2170
57feb835 2171 snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
1da177e4 2172 for (i = 0; i < 2; i++)
57feb835 2173 snd_pcm_suspend_all(chip->pcms[i]);
1da177e4
LT		 2174 for (i = 0; i < chip->num_devs; i++)
2175 snd_via82xx_channel_reset(chip, &chip->devs[i]);
2176 synchronize_irq(chip->irq);
2177 snd_ac97_suspend(chip->ac97);
2178
2179 /* save misc values */
2180 if (chip->chip_type != TYPE_VIA686) {
2181 pci_read_config_byte(chip->pci, VIA8233_SPDIF_CTRL, &chip->spdif_ctrl_saved);
2182 chip->capture_src_saved[0] = inb(chip->port + VIA_REG_CAPTURE_CHANNEL);
2183 chip->capture_src_saved[1] = inb(chip->port + VIA_REG_CAPTURE_CHANNEL + 0x10);
2184 }
2185
57feb835
TI		 2186 pci_disable_device(pci);
2187 pci_save_state(pci);
30b35399 2188 pci_set_power_state(pci, pci_choose_state(pci, state));
1da177e4
LT		 2189 return 0;
2190}
2191
57feb835 2192static int snd_via82xx_resume(struct pci_dev *pci)
1da177e4 2193{
57feb835
TI		 2194 struct snd_card *card = pci_get_drvdata(pci);
2195 struct via82xx *chip = card->private_data;
1da177e4
LT		 2196 int i;
2197
57feb835 2198 pci_set_power_state(pci, PCI_D0);
30b35399
TI		 2199 pci_restore_state(pci);
2200 if (pci_enable_device(pci) < 0) {
2201 printk(KERN_ERR "via82xx: pci_enable_device failed, "
2202 "disabling device\n");
2203 snd_card_disconnect(card);
2204 return -EIO;
2205 }
2206 pci_set_master(pci);
1da177e4
LT		 2207
2208 snd_via82xx_chip_init(chip);
2209
2210 if (chip->chip_type == TYPE_VIA686) {
2211 if (chip->mpu_port_saved)
2212 pci_write_config_dword(chip->pci, 0x18, chip->mpu_port_saved | 0x01);
2213 pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE, chip->legacy_saved);
2214 pci_write_config_byte(chip->pci, VIA_PNP_CONTROL, chip->legacy_cfg_saved);
2215 } else {
2216 pci_write_config_byte(chip->pci, VIA8233_SPDIF_CTRL, chip->spdif_ctrl_saved);
2217 outb(chip->capture_src_saved[0], chip->port + VIA_REG_CAPTURE_CHANNEL);
2218 outb(chip->capture_src_saved[1], chip->port + VIA_REG_CAPTURE_CHANNEL + 0x10);
2219 }
2220
2221 snd_ac97_resume(chip->ac97);
2222
2223 for (i = 0; i < chip->num_devs; i++)
2224 snd_via82xx_channel_reset(chip, &chip->devs[i]);
2225
57feb835 2226 snd_power_change_state(card, SNDRV_CTL_POWER_D0);
1da177e4
LT		 2227 return 0;
2228}
2229#endif /* CONFIG_PM */
2230
e437e3d7 2231static int snd_via82xx_free(struct via82xx *chip)
1da177e4
LT		 2232{
2233 unsigned int i;
2234
2235 if (chip->irq < 0)
2236 goto __end_hw;
2237 /* disable interrupts */
2238 for (i = 0; i < chip->num_devs; i++)
2239 snd_via82xx_channel_reset(chip, &chip->devs[i]);
f000fd80 2240
1da177e4 2241 if (chip->irq >= 0)
e437e3d7 2242 free_irq(chip->irq, chip);
757d5a75 2243 __end_hw:
b1d5776d 2244 release_and_free_resource(chip->mpu_res);
1da177e4
LT		 2245 pci_release_regions(chip->pci);
2246
2247 if (chip->chip_type == TYPE_VIA686) {
2248 snd_via686_free_gameport(chip);
2249 pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE, chip->old_legacy);
2250 pci_write_config_byte(chip->pci, VIA_PNP_CONTROL, chip->old_legacy_cfg);
2251 }
2252 pci_disable_device(chip->pci);
2253 kfree(chip);
2254 return 0;
2255}
2256
e437e3d7 2257static int snd_via82xx_dev_free(struct snd_device *device)
1da177e4 2258{
e437e3d7 2259 struct via82xx *chip = device->device_data;
1da177e4
LT		 2260 return snd_via82xx_free(chip);
2261}
2262
e437e3d7 2263static int __devinit snd_via82xx_create(struct snd_card *card,
1da177e4
LT		 2264 struct pci_dev *pci,
2265 int chip_type,
2266 int revision,
2267 unsigned int ac97_clock,
e437e3d7 2268 struct via82xx ** r_via)
1da177e4 2269{
e437e3d7 2270 struct via82xx *chip;
1da177e4 2271 int err;
e437e3d7 2272 static struct snd_device_ops ops = {
1da177e4
LT		 2273 .dev_free = snd_via82xx_dev_free,
2274 };
2275
2276 if ((err = pci_enable_device(pci)) < 0)
2277 return err;
2278
e560d8d8 2279 if ((chip = kzalloc(sizeof(*chip), GFP_KERNEL)) == NULL) {
1da177e4
LT		 2280 pci_disable_device(pci);
2281 return -ENOMEM;
2282 }
2283
2284 chip->chip_type = chip_type;
2285 chip->revision = revision;
2286
2287 spin_lock_init(&chip->reg_lock);
2288 spin_lock_init(&chip->rates[0].lock);
2289 spin_lock_init(&chip->rates[1].lock);
2290 chip->card = card;
2291 chip->pci = pci;
2292 chip->irq = -1;
2293
2294 pci_read_config_byte(pci, VIA_FUNC_ENABLE, &chip->old_legacy);
2295 pci_read_config_byte(pci, VIA_PNP_CONTROL, &chip->old_legacy_cfg);
2296 pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE,
2297 chip->old_legacy & ~(VIA_FUNC_ENABLE_SB|VIA_FUNC_ENABLE_FM));
2298
2299 if ((err = pci_request_regions(pci, card->driver)) < 0) {
2300 kfree(chip);
2301 pci_disable_device(pci);
2302 return err;
2303 }
2304 chip->port = pci_resource_start(pci, 0);
4f550df5
KW		 2305 if (request_irq(pci->irq,
2306 chip_type == TYPE_VIA8233 ?
2307 snd_via8233_interrupt : snd_via686_interrupt,
437a5a46 2308 IRQF_SHARED,
e437e3d7 2309 card->driver, chip)) {
99b359ba 2310 snd_printk(KERN_ERR "unable to grab IRQ %d\n", pci->irq);
1da177e4
LT		 2311 snd_via82xx_free(chip);
2312 return -EBUSY;
2313 }
2314 chip->irq = pci->irq;
2315 if (ac97_clock >= 8000 && ac97_clock <= 48000)
2316 chip->ac97_clock = ac97_clock;
2317 synchronize_irq(chip->irq);
2318
2319 if ((err = snd_via82xx_chip_init(chip)) < 0) {
2320 snd_via82xx_free(chip);
2321 return err;
2322 }
2323
2324 if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
2325 snd_via82xx_free(chip);
2326 return err;
2327 }
2328
2329 /* The 8233 ac97 controller does not implement the master bit
2330 * in the pci command register. IMHO this is a violation of the PCI spec.
2331 * We call pci_set_master here because it does not hurt. */
2332 pci_set_master(pci);
2333
2334 snd_card_set_dev(card, &pci->dev);
2335
2336 *r_via = chip;
2337 return 0;
2338}
2339
2340struct via823x_info {
2341 int revision;
2342 char *name;
2343 int type;
2344};
2345static struct via823x_info via823x_cards[] __devinitdata = {
2346 { VIA_REV_PRE_8233, "VIA 8233-Pre", TYPE_VIA8233 },
2347 { VIA_REV_8233C, "VIA 8233C", TYPE_VIA8233 },
2348 { VIA_REV_8233, "VIA 8233", TYPE_VIA8233 },
2349 { VIA_REV_8233A, "VIA 8233A", TYPE_VIA8233A },
2350 { VIA_REV_8235, "VIA 8235", TYPE_VIA8233 },
2351 { VIA_REV_8237, "VIA 8237", TYPE_VIA8233 },
8263c65f 2352 { VIA_REV_8251, "VIA 8251", TYPE_VIA8233 },
1da177e4
LT		 2353};
2354
2355/*
2356 * auto detection of DXS channel supports.
2357 */
9d74958a
TI		 2358
2359static struct snd_pci_quirk dxs_whitelist[] __devinitdata = {
2360 SND_PCI_QUIRK(0x1005, 0x4710, "Avance Logic Mobo", VIA_DXS_ENABLE),
2361 SND_PCI_QUIRK(0x1019, 0x0996, "ESC Mobo", VIA_DXS_48K),
2362 SND_PCI_QUIRK(0x1019, 0x0a81, "ECS K7VTA3 v8.0", VIA_DXS_NO_VRA),
2363 SND_PCI_QUIRK(0x1019, 0x0a85, "ECS L7VMM2", VIA_DXS_NO_VRA),
2364 SND_PCI_QUIRK(0x1019, 0, "ESC K8", VIA_DXS_SRC),
2365 SND_PCI_QUIRK(0x1019, 0xaa01, "ESC K8T890-A", VIA_DXS_SRC),
2366 SND_PCI_QUIRK(0x1025, 0x0033, "Acer Inspire 1353LM", VIA_DXS_NO_VRA),
2367 SND_PCI_QUIRK(0x1025, 0x0046, "Acer Aspire 1524 WLMi", VIA_DXS_SRC),
2368 SND_PCI_QUIRK(0x1043, 0, "ASUS A7/A8", VIA_DXS_NO_VRA),
2369 SND_PCI_QUIRK(0x1071, 0, "Diverse Notebook", VIA_DXS_NO_VRA),
2370 SND_PCI_QUIRK(0x10cf, 0x118e, "FSC Laptop", VIA_DXS_ENABLE),
2371 SND_PCI_QUIRK(0x1106, 0, "ASRock", VIA_DXS_SRC),
11be265f 2372 SND_PCI_QUIRK(0x1297, 0xa231, "Shuttle AK31v2", VIA_DXS_SRC),
9674513d
TI		 2373 SND_PCI_QUIRK(0x1297, 0xa232, "Shuttle", VIA_DXS_SRC),
2374 SND_PCI_QUIRK(0x1297, 0xc160, "Shuttle Sk41G", VIA_DXS_SRC),
9d74958a
TI		 2375 SND_PCI_QUIRK(0x1458, 0xa002, "Gigabyte GA-7VAXP", VIA_DXS_ENABLE),
2376 SND_PCI_QUIRK(0x1462, 0x3800, "MSI KT266", VIA_DXS_ENABLE),
2377 SND_PCI_QUIRK(0x1462, 0x7120, "MSI KT4V", VIA_DXS_ENABLE),
2378 SND_PCI_QUIRK(0x1462, 0x7142, "MSI K8MM-V", VIA_DXS_ENABLE),
2379 SND_PCI_QUIRK(0x1462, 0, "MSI Mobo", VIA_DXS_SRC),
2380 SND_PCI_QUIRK(0x147b, 0x1401, "ABIT KD7(-RAID)", VIA_DXS_ENABLE),
2381 SND_PCI_QUIRK(0x147b, 0x1411, "ABIT VA-20", VIA_DXS_ENABLE),
2382 SND_PCI_QUIRK(0x147b, 0x1413, "ABIT KV8 Pro", VIA_DXS_ENABLE),
2383 SND_PCI_QUIRK(0x147b, 0x1415, "ABIT AV8", VIA_DXS_NO_VRA),
2384 SND_PCI_QUIRK(0x14ff, 0x0403, "Twinhead mobo", VIA_DXS_ENABLE),
2385 SND_PCI_QUIRK(0x14ff, 0x0408, "Twinhead laptop", VIA_DXS_SRC),
2386 SND_PCI_QUIRK(0x1558, 0x4701, "Clevo D470", VIA_DXS_SRC),
2387 SND_PCI_QUIRK(0x1584, 0x8120, "Diverse Laptop", VIA_DXS_ENABLE),
2388 SND_PCI_QUIRK(0x1584, 0x8123, "Targa/Uniwill", VIA_DXS_NO_VRA),
2389 SND_PCI_QUIRK(0x161f, 0x202b, "Amira Notebook", VIA_DXS_NO_VRA),
2390 SND_PCI_QUIRK(0x161f, 0x2032, "m680x machines", VIA_DXS_48K),
2391 SND_PCI_QUIRK(0x1631, 0xe004, "PB EasyNote 3174", VIA_DXS_ENABLE),
2392 SND_PCI_QUIRK(0x1695, 0x3005, "EPoX EP-8K9A", VIA_DXS_ENABLE),
2393 SND_PCI_QUIRK(0x1695, 0, "EPoX mobo", VIA_DXS_SRC),
2394 SND_PCI_QUIRK(0x16f3, 0, "Jetway K8", VIA_DXS_SRC),
2395 SND_PCI_QUIRK(0x1734, 0, "FSC Laptop", VIA_DXS_SRC),
2396 SND_PCI_QUIRK(0x1849, 0x3059, "ASRock K7VM2", VIA_DXS_NO_VRA),
2397 SND_PCI_QUIRK(0x1849, 0, "ASRock mobo", VIA_DXS_SRC),
2398 SND_PCI_QUIRK(0x1919, 0x200a, "Soltek SL-K8", VIA_DXS_NO_VRA),
2399 SND_PCI_QUIRK(0x4005, 0x4710, "MSI K7T266", VIA_DXS_SRC),
2400 { } /* terminator */
1da177e4
LT		 2401};
2402
a769577b 2403static int __devinit check_dxs_list(struct pci_dev *pci, int revision)
1da177e4 2404{
9d74958a 2405 const struct snd_pci_quirk *w;
1da177e4 2406
9d74958a
TI		 2407 w = snd_pci_quirk_lookup(pci, dxs_whitelist);
2408 if (w) {
2409 snd_printdd(KERN_INFO "via82xx: DXS white list for %s found\n",
2410 w->name);
2411 return w->value;
1da177e4
LT		 2412 }
2413
a769577b
TI		 2414 /* for newer revision, default to DXS_SRC */
2415 if (revision >= VIA_REV_8235)
2416 return VIA_DXS_SRC;
2417
1da177e4
LT		 2418 /*
2419 * not detected, try 48k rate only to be sure.
2420 */
2421 printk(KERN_INFO "via82xx: Assuming DXS channels with 48k fixed sample rate.\n");
ee3b4c60 2422 printk(KERN_INFO " Please try dxs_support=5 option\n");
1da177e4 2423 printk(KERN_INFO " and report if it works on your machine.\n");
ee3b4c60 2424 printk(KERN_INFO " For more details, read ALSA-Configuration.txt.\n");
1da177e4
LT		 2425 return VIA_DXS_48K;
2426};
2427
2428static int __devinit snd_via82xx_probe(struct pci_dev *pci,
2429 const struct pci_device_id *pci_id)
2430{
e437e3d7
TI		 2431 struct snd_card *card;
2432 struct via82xx *chip;
1da177e4
LT		 2433 int chip_type = 0, card_type;
2434 unsigned int i;
2435 int err;
2436
b7fe4622 2437 card = snd_card_new(index, id, THIS_MODULE, 0);
1da177e4
LT		 2438 if (card == NULL)
2439 return -ENOMEM;
2440
2441 card_type = pci_id->driver_data;
1da177e4
LT		 2442 switch (card_type) {
2443 case TYPE_CARD_VIA686:
2444 strcpy(card->driver, "VIA686A");
44c10138 2445 sprintf(card->shortname, "VIA 82C686A/B rev%x", pci->revision);
1da177e4
LT		 2446 chip_type = TYPE_VIA686;
2447 break;
2448 case TYPE_CARD_VIA8233:
2449 chip_type = TYPE_VIA8233;
44c10138 2450 sprintf(card->shortname, "VIA 823x rev%x", pci->revision);
1da177e4 2451 for (i = 0; i < ARRAY_SIZE(via823x_cards); i++) {
44c10138 2452 if (pci->revision == via823x_cards[i].revision) {
1da177e4
LT		 2453 chip_type = via823x_cards[i].type;
2454 strcpy(card->shortname, via823x_cards[i].name);
2455 break;
2456 }
2457 }
2458 if (chip_type != TYPE_VIA8233A) {
b7fe4622 2459 if (dxs_support == VIA_DXS_AUTO)
44c10138 2460 dxs_support = check_dxs_list(pci, pci->revision);
1da177e4
LT		 2461 /* force to use VIA8233 or 8233A model according to
2462 * dxs_support module option
2463 */
b7fe4622 2464 if (dxs_support == VIA_DXS_DISABLE)
1da177e4
LT		 2465 chip_type = TYPE_VIA8233A;
2466 else
2467 chip_type = TYPE_VIA8233;
2468 }
2469 if (chip_type == TYPE_VIA8233A)
2470 strcpy(card->driver, "VIA8233A");
44c10138 2471 else if (pci->revision >= VIA_REV_8237)
1da177e4
LT		 2472 strcpy(card->driver, "VIA8237"); /* no slog assignment */
2473 else
2474 strcpy(card->driver, "VIA8233");
2475 break;
2476 default:
2477 snd_printk(KERN_ERR "invalid card type %d\n", card_type);
2478 err = -EINVAL;
2479 goto __error;
2480 }
2481
44c10138 2482 if ((err = snd_via82xx_create(card, pci, chip_type, pci->revision,
b7fe4622 2483 ac97_clock, &chip)) < 0)
1da177e4 2484 goto __error;
57feb835 2485 card->private_data = chip;
b7fe4622 2486 if ((err = snd_via82xx_mixer_new(chip, ac97_quirk)) < 0)
1da177e4
LT		 2487 goto __error;
2488
2489 if (chip_type == TYPE_VIA686) {
2490 if ((err = snd_via686_pcm_new(chip)) < 0 ||
b7fe4622 2491 (err = snd_via686_init_misc(chip)) < 0)
1da177e4
LT		 2492 goto __error;
2493 } else {
2494 if (chip_type == TYPE_VIA8233A) {
2495 if ((err = snd_via8233a_pcm_new(chip)) < 0)
2496 goto __error;
2497 // chip->dxs_fixed = 1; /* FIXME: use 48k for DXS #3? */
2498 } else {
2499 if ((err = snd_via8233_pcm_new(chip)) < 0)
2500 goto __error;
b7fe4622 2501 if (dxs_support == VIA_DXS_48K)
1da177e4 2502 chip->dxs_fixed = 1;
b7fe4622 2503 else if (dxs_support == VIA_DXS_NO_VRA)
1da177e4 2504 chip->no_vra = 1;
b7fe4622 2505 else if (dxs_support == VIA_DXS_SRC) {
2d7eb7cb
SV		 2506 chip->no_vra = 1;
2507 chip->dxs_src = 1;
2508 }
1da177e4 2509 }
b7fe4622 2510 if ((err = snd_via8233_init_misc(chip)) < 0)
1da177e4
LT		 2511 goto __error;
2512 }
2513
1da177e4
LT		 2514 /* disable interrupts */
2515 for (i = 0; i < chip->num_devs; i++)
2516 snd_via82xx_channel_reset(chip, &chip->devs[i]);
2517
2518 snprintf(card->longname, sizeof(card->longname),
2519 "%s with %s at %#lx, irq %d", card->shortname,
2520 snd_ac97_get_short_name(chip->ac97), chip->port, chip->irq);
2521
2522 snd_via82xx_proc_init(chip);
2523
2524 if ((err = snd_card_register(card)) < 0) {
2525 snd_card_free(card);
2526 return err;
2527 }
2528 pci_set_drvdata(pci, card);
1da177e4
LT		 2529 return 0;
2530
2531 __error:
2532 snd_card_free(card);
2533 return err;
2534}
2535
2536static void __devexit snd_via82xx_remove(struct pci_dev *pci)
2537{
2538 snd_card_free(pci_get_drvdata(pci));
2539 pci_set_drvdata(pci, NULL);
2540}
2541
2542static struct pci_driver driver = {
2543 .name = "VIA 82xx Audio",
2544 .id_table = snd_via82xx_ids,
2545 .probe = snd_via82xx_probe,
2546 .remove = __devexit_p(snd_via82xx_remove),
57feb835
TI		 2547#ifdef CONFIG_PM
2548 .suspend = snd_via82xx_suspend,
2549 .resume = snd_via82xx_resume,
2550#endif
1da177e4
LT		 2551};
2552
2553static int __init alsa_card_via82xx_init(void)
2554{
01d25d46 2555 return pci_register_driver(&driver);
1da177e4
LT		 2556}
2557
2558static void __exit alsa_card_via82xx_exit(void)
2559{
2560 pci_unregister_driver(&driver);
2561}
2562
2563module_init(alsa_card_via82xx_init)
2564module_exit(alsa_card_via82xx_exit)
Linux 6.x block layer and io_uring tree(s)