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sound: serial-u16550: fix buffer overflow
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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
5503600a 316#define VIA_MAX_BUFSIZE (1<<24)
1da177e4 317
e437e3d7 318struct viadev {
1da177e4
LT		 319 unsigned int reg_offset;
320 unsigned long port;
321 int direction; /* playback = 0, capture = 1 */
e437e3d7 322 struct snd_pcm_substream *substream;
1da177e4
LT		 323 int running;
324 unsigned int tbl_entries; /* # descriptors */
325 struct snd_dma_buffer table;
326 struct snd_via_sg_table *idx_table;
327 /* for recovery from the unexpected pointer */
328 unsigned int lastpos;
329 unsigned int fragsize;
330 unsigned int bufsize;
331 unsigned int bufsize2;
4f550df5
KW		 332 int hwptr_done; /* processed frame position in the buffer */
333 int in_interrupt;
334 int shadow_shift;
1da177e4
LT		 335};
336
337
338enum { TYPE_CARD_VIA686 = 1, TYPE_CARD_VIA8233 };
339enum { TYPE_VIA686, TYPE_VIA8233, TYPE_VIA8233A };
340
341#define VIA_MAX_DEVS 7 /* 4 playback, 1 multi, 2 capture */
342
343struct via_rate_lock {
344 spinlock_t lock;
345 int rate;
346 int used;
347};
348
e437e3d7 349struct via82xx {
1da177e4
LT		 350 int irq;
351
352 unsigned long port;
353 struct resource *mpu_res;
354 int chip_type;
355 unsigned char revision;
356
357 unsigned char old_legacy;
358 unsigned char old_legacy_cfg;
359#ifdef CONFIG_PM
360 unsigned char legacy_saved;
361 unsigned char legacy_cfg_saved;
362 unsigned char spdif_ctrl_saved;
363 unsigned char capture_src_saved[2];
364 unsigned int mpu_port_saved;
365#endif
366
00f226d4
HM		 367 unsigned char playback_volume[4][2]; /* for VIA8233/C/8235; default = 0 */
368 unsigned char playback_volume_c[2]; /* for VIA8233/C/8235; default = 0 */
1da177e4
LT		 369
370 unsigned int intr_mask; /* SGD_SHADOW mask to check interrupts */
371
372 struct pci_dev *pci;
e437e3d7 373 struct snd_card *card;
1da177e4
LT		 374
375 unsigned int num_devs;
376 unsigned int playback_devno, multi_devno, capture_devno;
e437e3d7 377 struct viadev devs[VIA_MAX_DEVS];
1da177e4
LT		 378 struct via_rate_lock rates[2]; /* playback and capture */
379 unsigned int dxs_fixed: 1; /* DXS channel accepts only 48kHz */
380 unsigned int no_vra: 1; /* no need to set VRA on DXS channels */
2d7eb7cb 381 unsigned int dxs_src: 1; /* use full SRC capabilities of DXS */
1da177e4
LT		 382 unsigned int spdif_on: 1; /* only spdif rates work to external DACs */
383
e437e3d7
TI		 384 struct snd_pcm *pcms[2];
385 struct snd_rawmidi *rmidi;
1da177e4 386
e437e3d7
TI		 387 struct snd_ac97_bus *ac97_bus;
388 struct snd_ac97 *ac97;
1da177e4
LT		 389 unsigned int ac97_clock;
390 unsigned int ac97_secondary; /* secondary AC'97 codec is present */
391
392 spinlock_t reg_lock;
e437e3d7 393 struct snd_info_entry *proc_entry;
1da177e4
LT		 394
395#ifdef SUPPORT_JOYSTICK
396 struct gameport *gameport;
397#endif
398};
399
f40b6890 400static struct pci_device_id snd_via82xx_ids[] = {
4f550df5
KW		 401 /* 0x1106, 0x3058 */
402 { PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686_5, PCI_ANY_ID, PCI_ANY_ID, 0, 0, TYPE_CARD_VIA686, }, /* 686A */
403 /* 0x1106, 0x3059 */
404 { PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8233_5, PCI_ANY_ID, PCI_ANY_ID, 0, 0, TYPE_CARD_VIA8233, }, /* VT8233 */
1da177e4
LT		 405 { 0, }
406};
407
408MODULE_DEVICE_TABLE(pci, snd_via82xx_ids);
409
410/*
411 */
412
413/*
414 * allocate and initialize the descriptor buffers
415 * periods = number of periods
416 * fragsize = period size in bytes
417 */
e437e3d7 418static int build_via_table(struct viadev *dev, struct snd_pcm_substream *substream,
1da177e4
LT		 419 struct pci_dev *pci,
420 unsigned int periods, unsigned int fragsize)
421{
422 unsigned int i, idx, ofs, rest;
e437e3d7 423 struct via82xx *chip = snd_pcm_substream_chip(substream);
1da177e4
LT		 424
425 if (dev->table.area == NULL) {
426 /* the start of each lists must be aligned to 8 bytes,
427 * but the kernel pages are much bigger, so we don't care
428 */
429 if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(chip->pci),
430 PAGE_ALIGN(VIA_TABLE_SIZE * 2 * 8),
431 &dev->table) < 0)
432 return -ENOMEM;
433 }
434 if (! dev->idx_table) {
435 dev->idx_table = kmalloc(sizeof(*dev->idx_table) * VIA_TABLE_SIZE, GFP_KERNEL);
436 if (! dev->idx_table)
437 return -ENOMEM;
438 }
439
440 /* fill the entries */
441 idx = 0;
442 ofs = 0;
443 for (i = 0; i < periods; i++) {
444 rest = fragsize;
445 /* fill descriptors for a period.
446 * a period can be split to several descriptors if it's
447 * over page boundary.
448 */
449 do {
450 unsigned int r;
451 unsigned int flag;
77a23f26 452 unsigned int addr;
1da177e4
LT		 453
454 if (idx >= VIA_TABLE_SIZE) {
455 snd_printk(KERN_ERR "via82xx: too much table size!\n");
456 return -EINVAL;
457 }
77a23f26
TI		 458 addr = snd_pcm_sgbuf_get_addr(substream, ofs);
459 ((u32 *)dev->table.area)[idx << 1] = cpu_to_le32(addr);
5503600a 460 r = snd_pcm_sgbuf_get_chunk_size(substream, ofs, rest);
1da177e4
LT		 461 rest -= r;
462 if (! rest) {
463 if (i == periods - 1)
464 flag = VIA_TBL_BIT_EOL; /* buffer boundary */
465 else
466 flag = VIA_TBL_BIT_FLAG; /* period boundary */
467 } else
468 flag = 0; /* period continues to the next */
ee419653
TI		 469 /*
470 printk(KERN_DEBUG "via: tbl %d: at %d size %d "
471 "(rest %d)\n", idx, ofs, r, rest);
472 */
1da177e4
LT		 473 ((u32 *)dev->table.area)[(idx<<1) + 1] = cpu_to_le32(r | flag);
474 dev->idx_table[idx].offset = ofs;
475 dev->idx_table[idx].size = r;
476 ofs += r;
477 idx++;
478 } while (rest > 0);
479 }
480 dev->tbl_entries = idx;
481 dev->bufsize = periods * fragsize;
482 dev->bufsize2 = dev->bufsize / 2;
483 dev->fragsize = fragsize;
484 return 0;
485}
486
487
e437e3d7 488static int clean_via_table(struct viadev *dev, struct snd_pcm_substream *substream,
1da177e4
LT		 489 struct pci_dev *pci)
490{
491 if (dev->table.area) {
492 snd_dma_free_pages(&dev->table);
493 dev->table.area = NULL;
494 }
4d572776
JJ		 495 kfree(dev->idx_table);
496 dev->idx_table = NULL;
1da177e4
LT		 497 return 0;
498}
499
500/*
501 * Basic I/O
502 */
503
e437e3d7 504static inline unsigned int snd_via82xx_codec_xread(struct via82xx *chip)
1da177e4
LT		 505{
506 return inl(VIAREG(chip, AC97));
507}
508
e437e3d7 509static inline void snd_via82xx_codec_xwrite(struct via82xx *chip, unsigned int val)
1da177e4
LT		 510{
511 outl(val, VIAREG(chip, AC97));
512}
513
e437e3d7 514static int snd_via82xx_codec_ready(struct via82xx *chip, int secondary)
1da177e4
LT		 515{
516 unsigned int timeout = 1000; /* 1ms */
517 unsigned int val;
518
519 while (timeout-- > 0) {
520 udelay(1);
521 if (!((val = snd_via82xx_codec_xread(chip)) & VIA_REG_AC97_BUSY))
522 return val & 0xffff;
523 }
e437e3d7
TI		 524 snd_printk(KERN_ERR "codec_ready: codec %i is not ready [0x%x]\n",
525 secondary, snd_via82xx_codec_xread(chip));
1da177e4
LT		 526 return -EIO;
527}
528
e437e3d7 529static int snd_via82xx_codec_valid(struct via82xx *chip, int secondary)
1da177e4
LT		 530{
531 unsigned int timeout = 1000; /* 1ms */
532 unsigned int val, val1;
533 unsigned int stat = !secondary ? VIA_REG_AC97_PRIMARY_VALID :
534 VIA_REG_AC97_SECONDARY_VALID;
535
536 while (timeout-- > 0) {
537 val = snd_via82xx_codec_xread(chip);
538 val1 = val & (VIA_REG_AC97_BUSY | stat);
539 if (val1 == stat)
540 return val & 0xffff;
541 udelay(1);
542 }
543 return -EIO;
544}
545
e437e3d7 546static void snd_via82xx_codec_wait(struct snd_ac97 *ac97)
1da177e4 547{
e437e3d7 548 struct via82xx *chip = ac97->private_data;
1da177e4
LT		 549 int err;
550 err = snd_via82xx_codec_ready(chip, ac97->num);
551 /* here we need to wait fairly for long time.. */
ef21ca24 552 msleep(500);
1da177e4
LT		 553}
554
e437e3d7 555static void snd_via82xx_codec_write(struct snd_ac97 *ac97,
1da177e4
LT		 556 unsigned short reg,
557 unsigned short val)
558{
e437e3d7 559 struct via82xx *chip = ac97->private_data;
1da177e4 560 unsigned int xval;
4f550df5 561
1da177e4
LT		 562 xval = !ac97->num ? VIA_REG_AC97_CODEC_ID_PRIMARY : VIA_REG_AC97_CODEC_ID_SECONDARY;
563 xval <<= VIA_REG_AC97_CODEC_ID_SHIFT;
564 xval |= reg << VIA_REG_AC97_CMD_SHIFT;
565 xval |= val << VIA_REG_AC97_DATA_SHIFT;
566 snd_via82xx_codec_xwrite(chip, xval);
567 snd_via82xx_codec_ready(chip, ac97->num);
568}
569
e437e3d7 570static unsigned short snd_via82xx_codec_read(struct snd_ac97 *ac97, unsigned short reg)
1da177e4 571{
e437e3d7 572 struct via82xx *chip = ac97->private_data;
1da177e4
LT		 573 unsigned int xval, val = 0xffff;
574 int again = 0;
575
576 xval = ac97->num << VIA_REG_AC97_CODEC_ID_SHIFT;
577 xval |= ac97->num ? VIA_REG_AC97_SECONDARY_VALID : VIA_REG_AC97_PRIMARY_VALID;
578 xval |= VIA_REG_AC97_READ;
579 xval |= (reg & 0x7f) << VIA_REG_AC97_CMD_SHIFT;
580 while (1) {
581 if (again++ > 3) {
e437e3d7
TI		 582 snd_printk(KERN_ERR "codec_read: codec %i is not valid [0x%x]\n",
583 ac97->num, snd_via82xx_codec_xread(chip));
1da177e4
LT		 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
e437e3d7 597static void snd_via82xx_channel_reset(struct via82xx *chip, struct viadev *viadev)
1da177e4
LT		 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;
4f550df5 610 viadev->hwptr_done = 0;
1da177e4
LT		 611}
612
613
614/*
615 * Interrupt handler
4f550df5 616 * Used for 686 and 8233A
1da177e4 617 */
7d12e780 618static irqreturn_t snd_via686_interrupt(int irq, void *dev_id)
1da177e4 619{
e437e3d7 620 struct via82xx *chip = dev_id;
1da177e4
LT		 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 */
7d12e780 628 return snd_mpu401_uart_interrupt(irq, chip->rmidi->private_data);
1da177e4
LT		 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++) {
e437e3d7 635 struct viadev *viadev = &chip->devs[i];
1da177e4 636 unsigned char c_status = inb(VIADEV_REG(viadev, OFFSET_STATUS));
4f550df5 637 if (! (c_status & (VIA_REG_STAT_EOL|VIA_REG_STAT_FLAG|VIA_REG_STAT_STOPPED)))
1da177e4
LT		 638 continue;
639 if (viadev->substream && viadev->running) {
4f550df5
KW		 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;
1da177e4
LT		 650 spin_unlock(&chip->reg_lock);
651 snd_pcm_period_elapsed(viadev->substream);
652 spin_lock(&chip->reg_lock);
4f550df5 653 viadev->in_interrupt = 0;
1da177e4
LT		 654 }
655 outb(c_status, VIADEV_REG(viadev, OFFSET_STATUS)); /* ack */
656 }
657 spin_unlock(&chip->reg_lock);
658 return IRQ_HANDLED;
659}
660
4f550df5
KW		 661/*
662 * Interrupt handler
663 */
7d12e780 664static irqreturn_t snd_via8233_interrupt(int irq, void *dev_id)
4f550df5 665{
e437e3d7 666 struct via82xx *chip = dev_id;
4f550df5
KW		 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++) {
e437e3d7
TI		 676 struct viadev *viadev = &chip->devs[i];
677 struct snd_pcm_substream *substream;
4f550df5
KW		 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
1da177e4
LT		 715/*
716 * PCM callbacks
717 */
718
719/*
720 * trigger callback
721 */
e437e3d7 722static int snd_via82xx_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
1da177e4 723{
e437e3d7
TI		 724 struct via82xx *chip = snd_pcm_substream_chip(substream);
725 struct viadev *viadev = substream->runtime->private_data;
1da177e4
LT		 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:
41e4845c 734 case SNDRV_PCM_TRIGGER_RESUME:
1da177e4
LT		 735 val |= VIA_REG_CTRL_START;
736 viadev->running = 1;
737 break;
738 case SNDRV_PCM_TRIGGER_STOP:
41e4845c 739 case SNDRV_PCM_TRIGGER_SUSPEND:
1da177e4
LT		 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) \
e437e3d7
TI		 769 ((pos) < viadev->lastpos && ((pos) >= viadev->bufsize2 ||\
770 viadev->lastpos < viadev->bufsize2))
1da177e4 771
e437e3d7
TI		 772static inline unsigned int calc_linear_pos(struct viadev *viadev, unsigned int idx,
773 unsigned int count)
1da177e4
LT		 774{
775 unsigned int size, base, res;
776
777 size = viadev->idx_table[idx].size;
778 base = viadev->idx_table[idx].offset;
779 res = base + size - count;
4f550df5
KW		 780 if (res >= viadev->bufsize)
781 res -= viadev->bufsize;
1da177e4
LT		 782
783 /* check the validity of the calculated position */
784 if (size < count) {
e437e3d7
TI		 785 snd_printd(KERN_ERR "invalid via82xx_cur_ptr (size = %d, count = %d)\n",
786 (int)size, (int)count);
1da177e4
LT		 787 res = viadev->lastpos;
788 } else {
789 if (! count) {
790 /* Some mobos report count = 0 on the DMA boundary,
791 * i.e. count = size indeed.
792 * Let's check whether this step is above the expected size.
793 */
794 int delta = res - viadev->lastpos;
795 if (delta < 0)
796 delta += viadev->bufsize;
797 if ((unsigned int)delta > viadev->fragsize)
798 res = base;
799 }
800 if (check_invalid_pos(viadev, res)) {
801#ifdef POINTER_DEBUG
e437e3d7
TI		 802 printk(KERN_DEBUG "fail: idx = %i/%i, lastpos = 0x%x, "
803 "bufsize2 = 0x%x, offsize = 0x%x, size = 0x%x, "
804 "count = 0x%x\n", idx, viadev->tbl_entries,
805 viadev->lastpos, viadev->bufsize2,
806 viadev->idx_table[idx].offset,
807 viadev->idx_table[idx].size, count);
1da177e4
LT		 808#endif
809 /* count register returns full size when end of buffer is reached */
810 res = base + size;
811 if (check_invalid_pos(viadev, res)) {
e437e3d7
TI		 812 snd_printd(KERN_ERR "invalid via82xx_cur_ptr (2), "
813 "using last valid pointer\n");
1da177e4
LT		 814 res = viadev->lastpos;
815 }
816 }
817 }
1da177e4
LT		 818 return res;
819}
820
821/*
822 * get the current pointer on via686
823 */
e437e3d7 824static snd_pcm_uframes_t snd_via686_pcm_pointer(struct snd_pcm_substream *substream)
1da177e4 825{
e437e3d7
TI		 826 struct via82xx *chip = snd_pcm_substream_chip(substream);
827 struct viadev *viadev = substream->runtime->private_data;
1da177e4
LT		 828 unsigned int idx, ptr, count, res;
829
da3cec35
TI		 830 if (snd_BUG_ON(!viadev->tbl_entries))
831 return 0;
1da177e4
LT		 832 if (!(inb(VIADEV_REG(viadev, OFFSET_STATUS)) & VIA_REG_STAT_ACTIVE))
833 return 0;
834
835 spin_lock(&chip->reg_lock);
836 count = inl(VIADEV_REG(viadev, OFFSET_CURR_COUNT)) & 0xffffff;
837 /* The via686a does not have the current index register,
838 * so we need to calculate the index from CURR_PTR.
839 */
840 ptr = inl(VIADEV_REG(viadev, OFFSET_CURR_PTR));
841 if (ptr <= (unsigned int)viadev->table.addr)
842 idx = 0;
843 else /* CURR_PTR holds the address + 8 */
844 idx = ((ptr - (unsigned int)viadev->table.addr) / 8 - 1) % viadev->tbl_entries;
845 res = calc_linear_pos(viadev, idx, count);
4f550df5 846 viadev->lastpos = res; /* remember the last position */
1da177e4
LT		 847 spin_unlock(&chip->reg_lock);
848
849 return bytes_to_frames(substream->runtime, res);
850}
851
852/*
853 * get the current pointer on via823x
854 */
e437e3d7 855static snd_pcm_uframes_t snd_via8233_pcm_pointer(struct snd_pcm_substream *substream)
1da177e4 856{
e437e3d7
TI		 857 struct via82xx *chip = snd_pcm_substream_chip(substream);
858 struct viadev *viadev = substream->runtime->private_data;
1da177e4 859 unsigned int idx, count, res;
4f550df5 860 int status;
1da177e4 861
da3cec35
TI		 862 if (snd_BUG_ON(!viadev->tbl_entries))
863 return 0;
4f550df5 864
1da177e4 865 spin_lock(&chip->reg_lock);
4f550df5
KW		 866 count = inl(VIADEV_REG(viadev, OFFSET_CURR_COUNT));
867 status = viadev->in_interrupt;
868 if (!status)
869 status = inb(VIADEV_REG(viadev, OFFSET_STATUS));
870
c6cc0e3b
BJ		 871 /* An apparent bug in the 8251 is worked around by sending a
872 * REG_CTRL_START. */
873 if (chip->revision == VIA_REV_8251 && (status & VIA_REG_STAT_EOL))
874 snd_via82xx_pcm_trigger(substream, SNDRV_PCM_TRIGGER_START);
875
4f550df5 876 if (!(status & VIA_REG_STAT_ACTIVE)) {
c6cc0e3b
BJ		 877 res = 0;
878 goto unlock;
4f550df5
KW		 879 }
880 if (count & 0xffffff) {
881 idx = count >> 24;
882 if (idx >= viadev->tbl_entries) {
1da177e4 883#ifdef POINTER_DEBUG
e437e3d7
TI		 884 printk(KERN_DEBUG "fail: invalid idx = %i/%i\n", idx,
885 viadev->tbl_entries);
1da177e4 886#endif
4f550df5
KW		 887 res = viadev->lastpos;
888 } else {
889 count &= 0xffffff;
890 res = calc_linear_pos(viadev, idx, count);
891 }
1da177e4 892 } else {
4f550df5
KW		 893 res = viadev->hwptr_done;
894 if (!viadev->in_interrupt) {
895 if (status & VIA_REG_STAT_EOL) {
896 res = 0;
897 } else
898 if (status & VIA_REG_STAT_FLAG) {
899 res += viadev->fragsize;
900 }
901 }
902 }
903unlock:
904 viadev->lastpos = res;
1da177e4
LT		 905 spin_unlock(&chip->reg_lock);
906
907 return bytes_to_frames(substream->runtime, res);
908}
909
910
911/*
912 * hw_params callback:
913 * allocate the buffer and build up the buffer description table
914 */
e437e3d7
TI		 915static int snd_via82xx_hw_params(struct snd_pcm_substream *substream,
916 struct snd_pcm_hw_params *hw_params)
1da177e4 917{
e437e3d7
TI		 918 struct via82xx *chip = snd_pcm_substream_chip(substream);
919 struct viadev *viadev = substream->runtime->private_data;
1da177e4
LT		 920 int err;
921
922 err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
923 if (err < 0)
924 return err;
925 err = build_via_table(viadev, substream, chip->pci,
926 params_periods(hw_params),
927 params_period_bytes(hw_params));
928 if (err < 0)
929 return err;
930
931 return 0;
932}
933
934/*
935 * hw_free callback:
936 * clean up the buffer description table and release the buffer
937 */
e437e3d7 938static int snd_via82xx_hw_free(struct snd_pcm_substream *substream)
1da177e4 939{
e437e3d7
TI		 940 struct via82xx *chip = snd_pcm_substream_chip(substream);
941 struct viadev *viadev = substream->runtime->private_data;
1da177e4
LT		 942
943 clean_via_table(viadev, substream, chip->pci);
944 snd_pcm_lib_free_pages(substream);
945 return 0;
946}
947
948
949/*
950 * set up the table pointer
951 */
e437e3d7 952static void snd_via82xx_set_table_ptr(struct via82xx *chip, struct viadev *viadev)
1da177e4
LT		 953{
954 snd_via82xx_codec_ready(chip, 0);
955 outl((u32)viadev->table.addr, VIADEV_REG(viadev, OFFSET_TABLE_PTR));
956 udelay(20);
957 snd_via82xx_codec_ready(chip, 0);
958}
959
960/*
961 * prepare callback for playback and capture on via686
962 */
e437e3d7
TI		 963static void via686_setup_format(struct via82xx *chip, struct viadev *viadev,
964 struct snd_pcm_runtime *runtime)
1da177e4
LT		 965{
966 snd_via82xx_channel_reset(chip, viadev);
967 /* this must be set after channel_reset */
968 snd_via82xx_set_table_ptr(chip, viadev);
969 outb(VIA_REG_TYPE_AUTOSTART |
970 (runtime->format == SNDRV_PCM_FORMAT_S16_LE ? VIA_REG_TYPE_16BIT : 0) |
971 (runtime->channels > 1 ? VIA_REG_TYPE_STEREO : 0) |
972 ((viadev->reg_offset & 0x10) == 0 ? VIA_REG_TYPE_INT_LSAMPLE : 0) |
973 VIA_REG_TYPE_INT_EOL |
974 VIA_REG_TYPE_INT_FLAG, VIADEV_REG(viadev, OFFSET_TYPE));
975}
976
e437e3d7 977static int snd_via686_playback_prepare(struct snd_pcm_substream *substream)
1da177e4 978{
e437e3d7
TI		 979 struct via82xx *chip = snd_pcm_substream_chip(substream);
980 struct viadev *viadev = substream->runtime->private_data;
981 struct snd_pcm_runtime *runtime = substream->runtime;
1da177e4
LT		 982
983 snd_ac97_set_rate(chip->ac97, AC97_PCM_FRONT_DAC_RATE, runtime->rate);
984 snd_ac97_set_rate(chip->ac97, AC97_SPDIF, runtime->rate);
985 via686_setup_format(chip, viadev, runtime);
986 return 0;
987}
988
e437e3d7 989static int snd_via686_capture_prepare(struct snd_pcm_substream *substream)
1da177e4 990{
e437e3d7
TI		 991 struct via82xx *chip = snd_pcm_substream_chip(substream);
992 struct viadev *viadev = substream->runtime->private_data;
993 struct snd_pcm_runtime *runtime = substream->runtime;
1da177e4
LT		 994
995 snd_ac97_set_rate(chip->ac97, AC97_PCM_LR_ADC_RATE, runtime->rate);
996 via686_setup_format(chip, viadev, runtime);
997 return 0;
998}
999
1000/*
1001 * lock the current rate
1002 */
1003static int via_lock_rate(struct via_rate_lock *rec, int rate)
1004{
1005 int changed = 0;
1006
1007 spin_lock_irq(&rec->lock);
1008 if (rec->rate != rate) {
1009 if (rec->rate && rec->used > 1) /* already set */
1010 changed = -EINVAL;
1011 else {
1012 rec->rate = rate;
1013 changed = 1;
1014 }
1015 }
1016 spin_unlock_irq(&rec->lock);
1017 return changed;
1018}
1019
1020/*
1021 * prepare callback for DSX playback on via823x
1022 */
e437e3d7 1023static int snd_via8233_playback_prepare(struct snd_pcm_substream *substream)
1da177e4 1024{
e437e3d7
TI		 1025 struct via82xx *chip = snd_pcm_substream_chip(substream);
1026 struct viadev *viadev = substream->runtime->private_data;
1027 struct snd_pcm_runtime *runtime = substream->runtime;
2d7eb7cb 1028 int ac97_rate = chip->dxs_src ? 48000 : runtime->rate;
1da177e4
LT		 1029 int rate_changed;
1030 u32 rbits;
1031
2d7eb7cb 1032 if ((rate_changed = via_lock_rate(&chip->rates[0], ac97_rate)) < 0)
1da177e4 1033 return rate_changed;
16d3f140 1034 if (rate_changed)
1da177e4
LT		 1035 snd_ac97_set_rate(chip->ac97, AC97_PCM_FRONT_DAC_RATE,
1036 chip->no_vra ? 48000 : runtime->rate);
16d3f140
TI		 1037 if (chip->spdif_on && viadev->reg_offset == 0x30)
1038 snd_ac97_set_rate(chip->ac97, AC97_SPDIF, runtime->rate);
1039
1da177e4
LT		 1040 if (runtime->rate == 48000)
1041 rbits = 0xfffff;
1042 else
e437e3d7
TI		 1043 rbits = (0x100000 / 48000) * runtime->rate +
1044 ((0x100000 % 48000) * runtime->rate) / 48000;
da3cec35 1045 snd_BUG_ON(rbits & ~0xfffff);
1da177e4
LT		 1046 snd_via82xx_channel_reset(chip, viadev);
1047 snd_via82xx_set_table_ptr(chip, viadev);
e437e3d7
TI		 1048 outb(chip->playback_volume[viadev->reg_offset / 0x10][0],
1049 VIADEV_REG(viadev, OFS_PLAYBACK_VOLUME_L));
1050 outb(chip->playback_volume[viadev->reg_offset / 0x10][1],
1051 VIADEV_REG(viadev, OFS_PLAYBACK_VOLUME_R));
1da177e4
LT		 1052 outl((runtime->format == SNDRV_PCM_FORMAT_S16_LE ? VIA8233_REG_TYPE_16BIT : 0) | /* format */
1053 (runtime->channels > 1 ? VIA8233_REG_TYPE_STEREO : 0) | /* stereo */
1054 rbits | /* rate */
1055 0xff000000, /* STOP index is never reached */
1056 VIADEV_REG(viadev, OFFSET_STOP_IDX));
1057 udelay(20);
1058 snd_via82xx_codec_ready(chip, 0);
1059 return 0;
1060}
1061
1062/*
1063 * prepare callback for multi-channel playback on via823x
1064 */
e437e3d7 1065static int snd_via8233_multi_prepare(struct snd_pcm_substream *substream)
1da177e4 1066{
e437e3d7
TI		 1067 struct via82xx *chip = snd_pcm_substream_chip(substream);
1068 struct viadev *viadev = substream->runtime->private_data;
1069 struct snd_pcm_runtime *runtime = substream->runtime;
1da177e4
LT		 1070 unsigned int slots;
1071 int fmt;
1072
1073 if (via_lock_rate(&chip->rates[0], runtime->rate) < 0)
1074 return -EINVAL;
1075 snd_ac97_set_rate(chip->ac97, AC97_PCM_FRONT_DAC_RATE, runtime->rate);
1076 snd_ac97_set_rate(chip->ac97, AC97_PCM_SURR_DAC_RATE, runtime->rate);
1077 snd_ac97_set_rate(chip->ac97, AC97_PCM_LFE_DAC_RATE, runtime->rate);
1078 snd_ac97_set_rate(chip->ac97, AC97_SPDIF, runtime->rate);
1079 snd_via82xx_channel_reset(chip, viadev);
1080 snd_via82xx_set_table_ptr(chip, viadev);
1081
e437e3d7
TI		 1082 fmt = (runtime->format == SNDRV_PCM_FORMAT_S16_LE) ?
1083 VIA_REG_MULTPLAY_FMT_16BIT : VIA_REG_MULTPLAY_FMT_8BIT;
1da177e4
LT		 1084 fmt |= runtime->channels << 4;
1085 outb(fmt, VIADEV_REG(viadev, OFS_MULTPLAY_FORMAT));
1086#if 0
1087 if (chip->revision == VIA_REV_8233A)
1088 slots = 0;
1089 else
1090#endif
1091 {
1092 /* set sample number to slot 3, 4, 7, 8, 6, 9 (for VIA8233/C,8235) */
1093 /* corresponding to FL, FR, RL, RR, C, LFE ?? */
1094 switch (runtime->channels) {
1095 case 1: slots = (1<<0) | (1<<4); break;
1096 case 2: slots = (1<<0) | (2<<4); break;
1097 case 3: slots = (1<<0) | (2<<4) | (5<<8); break;
1098 case 4: slots = (1<<0) | (2<<4) | (3<<8) | (4<<12); break;
1099 case 5: slots = (1<<0) | (2<<4) | (3<<8) | (4<<12) | (5<<16); break;
1100 case 6: slots = (1<<0) | (2<<4) | (3<<8) | (4<<12) | (5<<16) | (6<<20); break;
1101 default: slots = 0; break;
1102 }
1103 }
1104 /* STOP index is never reached */
1105 outl(0xff000000 | slots, VIADEV_REG(viadev, OFFSET_STOP_IDX));
1106 udelay(20);
1107 snd_via82xx_codec_ready(chip, 0);
1108 return 0;
1109}
1110
1111/*
1112 * prepare callback for capture on via823x
1113 */
e437e3d7 1114static int snd_via8233_capture_prepare(struct snd_pcm_substream *substream)
1da177e4 1115{
e437e3d7
TI		 1116 struct via82xx *chip = snd_pcm_substream_chip(substream);
1117 struct viadev *viadev = substream->runtime->private_data;
1118 struct snd_pcm_runtime *runtime = substream->runtime;
1da177e4
LT		 1119
1120 if (via_lock_rate(&chip->rates[1], runtime->rate) < 0)
1121 return -EINVAL;
1122 snd_ac97_set_rate(chip->ac97, AC97_PCM_LR_ADC_RATE, runtime->rate);
1123 snd_via82xx_channel_reset(chip, viadev);
1124 snd_via82xx_set_table_ptr(chip, viadev);
1125 outb(VIA_REG_CAPTURE_FIFO_ENABLE, VIADEV_REG(viadev, OFS_CAPTURE_FIFO));
1126 outl((runtime->format == SNDRV_PCM_FORMAT_S16_LE ? VIA8233_REG_TYPE_16BIT : 0) |
1127 (runtime->channels > 1 ? VIA8233_REG_TYPE_STEREO : 0) |
1128 0xff000000, /* STOP index is never reached */
1129 VIADEV_REG(viadev, OFFSET_STOP_IDX));
1130 udelay(20);
1131 snd_via82xx_codec_ready(chip, 0);
1132 return 0;
1133}
1134
1135
1136/*
1137 * pcm hardware definition, identical for both playback and capture
1138 */
e437e3d7 1139static struct snd_pcm_hardware snd_via82xx_hw =
1da177e4
LT		 1140{
1141 .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1142 SNDRV_PCM_INFO_BLOCK_TRANSFER |
1143 SNDRV_PCM_INFO_MMAP_VALID |
41e4845c 1144 /* SNDRV_PCM_INFO_RESUME | */
1da177e4
LT		 1145 SNDRV_PCM_INFO_PAUSE),
1146 .formats = SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
1147 .rates = SNDRV_PCM_RATE_48000,
1148 .rate_min = 48000,
1149 .rate_max = 48000,
1150 .channels_min = 1,
1151 .channels_max = 2,
5503600a 1152 .buffer_bytes_max = VIA_MAX_BUFSIZE,
1da177e4 1153 .period_bytes_min = 32,
5503600a 1154 .period_bytes_max = VIA_MAX_BUFSIZE / 2,
1da177e4
LT		 1155 .periods_min = 2,
1156 .periods_max = VIA_TABLE_SIZE / 2,
1157 .fifo_size = 0,
1158};
1159
1160
1161/*
1162 * open callback skeleton
1163 */
e437e3d7
TI		 1164static int snd_via82xx_pcm_open(struct via82xx *chip, struct viadev *viadev,
1165 struct snd_pcm_substream *substream)
1da177e4 1166{
e437e3d7 1167 struct snd_pcm_runtime *runtime = substream->runtime;
1da177e4
LT		 1168 int err;
1169 struct via_rate_lock *ratep;
1170
1171 runtime->hw = snd_via82xx_hw;
1172
1173 /* set the hw rate condition */
1174 ratep = &chip->rates[viadev->direction];
1175 spin_lock_irq(&ratep->lock);
1176 ratep->used++;
1177 if (chip->spdif_on && viadev->reg_offset == 0x30) {
1178 /* DXS#3 and spdif is on */
1179 runtime->hw.rates = chip->ac97->rates[AC97_RATES_SPDIF];
1180 snd_pcm_limit_hw_rates(runtime);
1181 } else if (chip->dxs_fixed && viadev->reg_offset < 0x40) {
1182 /* fixed DXS playback rate */
1183 runtime->hw.rates = SNDRV_PCM_RATE_48000;
1184 runtime->hw.rate_min = runtime->hw.rate_max = 48000;
2d7eb7cb
SV		 1185 } else if (chip->dxs_src && viadev->reg_offset < 0x40) {
1186 /* use full SRC capabilities of DXS */
1187 runtime->hw.rates = (SNDRV_PCM_RATE_CONTINUOUS |
1188 SNDRV_PCM_RATE_8000_48000);
1189 runtime->hw.rate_min = 8000;
1190 runtime->hw.rate_max = 48000;
1da177e4
LT		 1191 } else if (! ratep->rate) {
1192 int idx = viadev->direction ? AC97_RATES_ADC : AC97_RATES_FRONT_DAC;
1193 runtime->hw.rates = chip->ac97->rates[idx];
1194 snd_pcm_limit_hw_rates(runtime);
1195 } else {
1196 /* a fixed rate */
1197 runtime->hw.rates = SNDRV_PCM_RATE_KNOT;
1198 runtime->hw.rate_max = runtime->hw.rate_min = ratep->rate;
1199 }
1200 spin_unlock_irq(&ratep->lock);
1201
1202 /* we may remove following constaint when we modify table entries
1203 in interrupt */
1204 if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
1205 return err;
1206
1207 runtime->private_data = viadev;
1208 viadev->substream = substream;
1209
1210 return 0;
1211}
1212
1213
1214/*
1215 * open callback for playback on via686 and via823x DSX
1216 */
e437e3d7 1217static int snd_via82xx_playback_open(struct snd_pcm_substream *substream)
1da177e4 1218{
e437e3d7
TI		 1219 struct via82xx *chip = snd_pcm_substream_chip(substream);
1220 struct viadev *viadev = &chip->devs[chip->playback_devno + substream->number];
1da177e4
LT		 1221 int err;
1222
1223 if ((err = snd_via82xx_pcm_open(chip, viadev, substream)) < 0)
1224 return err;
1225 return 0;
1226}
1227
1228/*
1229 * open callback for playback on via823x multi-channel
1230 */
e437e3d7 1231static int snd_via8233_multi_open(struct snd_pcm_substream *substream)
1da177e4 1232{
e437e3d7
TI		 1233 struct via82xx *chip = snd_pcm_substream_chip(substream);
1234 struct viadev *viadev = &chip->devs[chip->multi_devno];
1da177e4
LT		 1235 int err;
1236 /* channels constraint for VIA8233A
1237 * 3 and 5 channels are not supported
1238 */
1239 static unsigned int channels[] = {
1240 1, 2, 4, 6
1241 };
e437e3d7 1242 static struct snd_pcm_hw_constraint_list hw_constraints_channels = {
1da177e4
LT		 1243 .count = ARRAY_SIZE(channels),
1244 .list = channels,
1245 .mask = 0,
1246 };
1247
1248 if ((err = snd_via82xx_pcm_open(chip, viadev, substream)) < 0)
1249 return err;
1250 substream->runtime->hw.channels_max = 6;
1251 if (chip->revision == VIA_REV_8233A)
e437e3d7
TI		 1252 snd_pcm_hw_constraint_list(substream->runtime, 0,
1253 SNDRV_PCM_HW_PARAM_CHANNELS,
1254 &hw_constraints_channels);
1da177e4
LT		 1255 return 0;
1256}
1257
1258/*
1259 * open callback for capture on via686 and via823x
1260 */
e437e3d7 1261static int snd_via82xx_capture_open(struct snd_pcm_substream *substream)
1da177e4 1262{
e437e3d7
TI		 1263 struct via82xx *chip = snd_pcm_substream_chip(substream);
1264 struct viadev *viadev = &chip->devs[chip->capture_devno + substream->pcm->device];
1da177e4
LT		 1265
1266 return snd_via82xx_pcm_open(chip, viadev, substream);
1267}
1268
1269/*
1270 * close callback
1271 */
e437e3d7 1272static int snd_via82xx_pcm_close(struct snd_pcm_substream *substream)
1da177e4 1273{
e437e3d7
TI		 1274 struct via82xx *chip = snd_pcm_substream_chip(substream);
1275 struct viadev *viadev = substream->runtime->private_data;
1da177e4
LT		 1276 struct via_rate_lock *ratep;
1277
1278 /* release the rate lock */
1279 ratep = &chip->rates[viadev->direction];
1280 spin_lock_irq(&ratep->lock);
1281 ratep->used--;
1282 if (! ratep->used)
1283 ratep->rate = 0;
1284 spin_unlock_irq(&ratep->lock);
6dbe6628
TI		 1285 if (! ratep->rate) {
1286 if (! viadev->direction) {
1287 snd_ac97_update_power(chip->ac97,
1288 AC97_PCM_FRONT_DAC_RATE, 0);
1289 snd_ac97_update_power(chip->ac97,
1290 AC97_PCM_SURR_DAC_RATE, 0);
1291 snd_ac97_update_power(chip->ac97,
1292 AC97_PCM_LFE_DAC_RATE, 0);
1293 } else
1294 snd_ac97_update_power(chip->ac97,
1295 AC97_PCM_LR_ADC_RATE, 0);
1296 }
1da177e4
LT		 1297 viadev->substream = NULL;
1298 return 0;
1299}
1300
1301
1302/* via686 playback callbacks */
e437e3d7 1303static struct snd_pcm_ops snd_via686_playback_ops = {
1da177e4
LT		 1304 .open = snd_via82xx_playback_open,
1305 .close = snd_via82xx_pcm_close,
1306 .ioctl = snd_pcm_lib_ioctl,
1307 .hw_params = snd_via82xx_hw_params,
1308 .hw_free = snd_via82xx_hw_free,
1309 .prepare = snd_via686_playback_prepare,
1310 .trigger = snd_via82xx_pcm_trigger,
1311 .pointer = snd_via686_pcm_pointer,
1312 .page = snd_pcm_sgbuf_ops_page,
1313};
1314
1315/* via686 capture callbacks */
e437e3d7 1316static struct snd_pcm_ops snd_via686_capture_ops = {
1da177e4
LT		 1317 .open = snd_via82xx_capture_open,
1318 .close = snd_via82xx_pcm_close,
1319 .ioctl = snd_pcm_lib_ioctl,
1320 .hw_params = snd_via82xx_hw_params,
1321 .hw_free = snd_via82xx_hw_free,
1322 .prepare = snd_via686_capture_prepare,
1323 .trigger = snd_via82xx_pcm_trigger,
1324 .pointer = snd_via686_pcm_pointer,
1325 .page = snd_pcm_sgbuf_ops_page,
1326};
1327
1328/* via823x DSX playback callbacks */
e437e3d7 1329static struct snd_pcm_ops snd_via8233_playback_ops = {
1da177e4
LT		 1330 .open = snd_via82xx_playback_open,
1331 .close = snd_via82xx_pcm_close,
1332 .ioctl = snd_pcm_lib_ioctl,
1333 .hw_params = snd_via82xx_hw_params,
1334 .hw_free = snd_via82xx_hw_free,
1335 .prepare = snd_via8233_playback_prepare,
1336 .trigger = snd_via82xx_pcm_trigger,
1337 .pointer = snd_via8233_pcm_pointer,
1338 .page = snd_pcm_sgbuf_ops_page,
1339};
1340
1341/* via823x multi-channel playback callbacks */
e437e3d7 1342static struct snd_pcm_ops snd_via8233_multi_ops = {
1da177e4
LT		 1343 .open = snd_via8233_multi_open,
1344 .close = snd_via82xx_pcm_close,
1345 .ioctl = snd_pcm_lib_ioctl,
1346 .hw_params = snd_via82xx_hw_params,
1347 .hw_free = snd_via82xx_hw_free,
1348 .prepare = snd_via8233_multi_prepare,
1349 .trigger = snd_via82xx_pcm_trigger,
1350 .pointer = snd_via8233_pcm_pointer,
1351 .page = snd_pcm_sgbuf_ops_page,
1352};
1353
1354/* via823x capture callbacks */
e437e3d7 1355static struct snd_pcm_ops snd_via8233_capture_ops = {
1da177e4
LT		 1356 .open = snd_via82xx_capture_open,
1357 .close = snd_via82xx_pcm_close,
1358 .ioctl = snd_pcm_lib_ioctl,
1359 .hw_params = snd_via82xx_hw_params,
1360 .hw_free = snd_via82xx_hw_free,
1361 .prepare = snd_via8233_capture_prepare,
1362 .trigger = snd_via82xx_pcm_trigger,
1363 .pointer = snd_via8233_pcm_pointer,
1364 .page = snd_pcm_sgbuf_ops_page,
1365};
1366
1367
e437e3d7
TI		 1368static void init_viadev(struct via82xx *chip, int idx, unsigned int reg_offset,
1369 int shadow_pos, int direction)
1da177e4
LT		 1370{
1371 chip->devs[idx].reg_offset = reg_offset;
4f550df5 1372 chip->devs[idx].shadow_shift = shadow_pos * 4;
1da177e4
LT		 1373 chip->devs[idx].direction = direction;
1374 chip->devs[idx].port = chip->port + reg_offset;
1375}
1376
1377/*
1378 * create pcm instances for VIA8233, 8233C and 8235 (not 8233A)
1379 */
e437e3d7 1380static int __devinit snd_via8233_pcm_new(struct via82xx *chip)
1da177e4 1381{
e437e3d7 1382 struct snd_pcm *pcm;
1da177e4
LT		 1383 int i, err;
1384
1385 chip->playback_devno = 0; /* x 4 */
1386 chip->multi_devno = 4; /* x 1 */
1387 chip->capture_devno = 5; /* x 2 */
1388 chip->num_devs = 7;
1389 chip->intr_mask = 0x33033333; /* FLAG|EOL for rec0-1, mc, sdx0-3 */
1390
1391 /* PCM #0: 4 DSX playbacks and 1 capture */
1392 err = snd_pcm_new(chip->card, chip->card->shortname, 0, 4, 1, &pcm);
1393 if (err < 0)
1394 return err;
1395 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_via8233_playback_ops);
1396 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_via8233_capture_ops);
1397 pcm->private_data = chip;
1398 strcpy(pcm->name, chip->card->shortname);
1399 chip->pcms[0] = pcm;
1400 /* set up playbacks */
1401 for (i = 0; i < 4; i++)
4f550df5 1402 init_viadev(chip, i, 0x10 * i, i, 0);
1da177e4 1403 /* capture */
4f550df5 1404 init_viadev(chip, chip->capture_devno, VIA_REG_CAPTURE_8233_STATUS, 6, 1);
1da177e4 1405
a2e3961d
TI		 1406 snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
1407 snd_dma_pci_data(chip->pci),
5503600a 1408 64*1024, VIA_MAX_BUFSIZE);
1da177e4
LT		 1409
1410 /* PCM #1: multi-channel playback and 2nd capture */
1411 err = snd_pcm_new(chip->card, chip->card->shortname, 1, 1, 1, &pcm);
1412 if (err < 0)
1413 return err;
1414 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_via8233_multi_ops);
1415 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_via8233_capture_ops);
1416 pcm->private_data = chip;
1417 strcpy(pcm->name, chip->card->shortname);
1418 chip->pcms[1] = pcm;
1419 /* set up playback */
4f550df5 1420 init_viadev(chip, chip->multi_devno, VIA_REG_MULTPLAY_STATUS, 4, 0);
1da177e4 1421 /* set up capture */
4f550df5 1422 init_viadev(chip, chip->capture_devno + 1, VIA_REG_CAPTURE_8233_STATUS + 0x10, 7, 1);
1da177e4 1423
a2e3961d
TI		 1424 snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
1425 snd_dma_pci_data(chip->pci),
5503600a 1426 64*1024, VIA_MAX_BUFSIZE);
1da177e4
LT		 1427 return 0;
1428}
1429
1430/*
1431 * create pcm instances for VIA8233A
1432 */
e437e3d7 1433static int __devinit snd_via8233a_pcm_new(struct via82xx *chip)
1da177e4 1434{
e437e3d7 1435 struct snd_pcm *pcm;
1da177e4
LT		 1436 int err;
1437
1438 chip->multi_devno = 0;
1439 chip->playback_devno = 1;
1440 chip->capture_devno = 2;
1441 chip->num_devs = 3;
1442 chip->intr_mask = 0x03033000; /* FLAG|EOL for rec0, mc, sdx3 */
1443
1444 /* PCM #0: multi-channel playback and capture */
1445 err = snd_pcm_new(chip->card, chip->card->shortname, 0, 1, 1, &pcm);
1446 if (err < 0)
1447 return err;
1448 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_via8233_multi_ops);
1449 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_via8233_capture_ops);
1450 pcm->private_data = chip;
1451 strcpy(pcm->name, chip->card->shortname);
1452 chip->pcms[0] = pcm;
1453 /* set up playback */
4f550df5 1454 init_viadev(chip, chip->multi_devno, VIA_REG_MULTPLAY_STATUS, 4, 0);
1da177e4 1455 /* capture */
4f550df5 1456 init_viadev(chip, chip->capture_devno, VIA_REG_CAPTURE_8233_STATUS, 6, 1);
1da177e4 1457
a2e3961d
TI		 1458 snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
1459 snd_dma_pci_data(chip->pci),
5503600a 1460 64*1024, VIA_MAX_BUFSIZE);
1da177e4
LT		 1461
1462 /* SPDIF supported? */
1463 if (! ac97_can_spdif(chip->ac97))
1464 return 0;
1465
1466 /* PCM #1: DXS3 playback (for spdif) */
1467 err = snd_pcm_new(chip->card, chip->card->shortname, 1, 1, 0, &pcm);
1468 if (err < 0)
1469 return err;
1470 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_via8233_playback_ops);
1471 pcm->private_data = chip;
1472 strcpy(pcm->name, chip->card->shortname);
1473 chip->pcms[1] = pcm;
1474 /* set up playback */
4f550df5 1475 init_viadev(chip, chip->playback_devno, 0x30, 3, 0);
1da177e4 1476
a2e3961d
TI		 1477 snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
1478 snd_dma_pci_data(chip->pci),
5503600a 1479 64*1024, VIA_MAX_BUFSIZE);
1da177e4
LT		 1480 return 0;
1481}
1482
1483/*
1484 * create a pcm instance for via686a/b
1485 */
e437e3d7 1486static int __devinit snd_via686_pcm_new(struct via82xx *chip)
1da177e4 1487{
e437e3d7 1488 struct snd_pcm *pcm;
1da177e4
LT		 1489 int err;
1490
1491 chip->playback_devno = 0;
1492 chip->capture_devno = 1;
1493 chip->num_devs = 2;
1494 chip->intr_mask = 0x77; /* FLAG | EOL for PB, CP, FM */
1495
1496 err = snd_pcm_new(chip->card, chip->card->shortname, 0, 1, 1, &pcm);
1497 if (err < 0)
1498 return err;
1499 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_via686_playback_ops);
1500 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_via686_capture_ops);
1501 pcm->private_data = chip;
1502 strcpy(pcm->name, chip->card->shortname);
1503 chip->pcms[0] = pcm;
4f550df5
KW		 1504 init_viadev(chip, 0, VIA_REG_PLAYBACK_STATUS, 0, 0);
1505 init_viadev(chip, 1, VIA_REG_CAPTURE_STATUS, 0, 1);
1da177e4 1506
a2e3961d
TI		 1507 snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
1508 snd_dma_pci_data(chip->pci),
5503600a 1509 64*1024, VIA_MAX_BUFSIZE);
1da177e4
LT		 1510 return 0;
1511}
1512
1513
1514/*
1515 * Mixer part
1516 */
1517
e437e3d7
TI		 1518static int snd_via8233_capture_source_info(struct snd_kcontrol *kcontrol,
1519 struct snd_ctl_elem_info *uinfo)
1da177e4
LT		 1520{
1521 /* formerly they were "Line" and "Mic", but it looks like that they
1522 * have nothing to do with the actual physical connections...
1523 */
1524 static char *texts[2] = {
1525 "Input1", "Input2"
1526 };
1527 uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
1528 uinfo->count = 1;
1529 uinfo->value.enumerated.items = 2;
1530 if (uinfo->value.enumerated.item >= 2)
1531 uinfo->value.enumerated.item = 1;
1532 strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
1533 return 0;
1534}
1535
e437e3d7
TI		 1536static int snd_via8233_capture_source_get(struct snd_kcontrol *kcontrol,
1537 struct snd_ctl_elem_value *ucontrol)
1da177e4 1538{
e437e3d7 1539 struct via82xx *chip = snd_kcontrol_chip(kcontrol);
1da177e4
LT		 1540 unsigned long port = chip->port + (kcontrol->id.index ? (VIA_REG_CAPTURE_CHANNEL + 0x10) : VIA_REG_CAPTURE_CHANNEL);
1541 ucontrol->value.enumerated.item[0] = inb(port) & VIA_REG_CAPTURE_CHANNEL_MIC ? 1 : 0;
1542 return 0;
1543}
1544
e437e3d7
TI		 1545static int snd_via8233_capture_source_put(struct snd_kcontrol *kcontrol,
1546 struct snd_ctl_elem_value *ucontrol)
1da177e4 1547{
e437e3d7 1548 struct via82xx *chip = snd_kcontrol_chip(kcontrol);
1da177e4
LT		 1549 unsigned long port = chip->port + (kcontrol->id.index ? (VIA_REG_CAPTURE_CHANNEL + 0x10) : VIA_REG_CAPTURE_CHANNEL);
1550 u8 val, oval;
1551
1552 spin_lock_irq(&chip->reg_lock);
1553 oval = inb(port);
1554 val = oval & ~VIA_REG_CAPTURE_CHANNEL_MIC;
1555 if (ucontrol->value.enumerated.item[0])
1556 val |= VIA_REG_CAPTURE_CHANNEL_MIC;
1557 if (val != oval)
1558 outb(val, port);
1559 spin_unlock_irq(&chip->reg_lock);
1560 return val != oval;
1561}
1562
e437e3d7 1563static struct snd_kcontrol_new snd_via8233_capture_source __devinitdata = {
1da177e4
LT		 1564 .name = "Input Source Select",
1565 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1566 .info = snd_via8233_capture_source_info,
1567 .get = snd_via8233_capture_source_get,
1568 .put = snd_via8233_capture_source_put,
1569};
1570
a5ce8890 1571#define snd_via8233_dxs3_spdif_info snd_ctl_boolean_mono_info
1da177e4 1572
e437e3d7
TI		 1573static int snd_via8233_dxs3_spdif_get(struct snd_kcontrol *kcontrol,
1574 struct snd_ctl_elem_value *ucontrol)
1da177e4 1575{
e437e3d7 1576 struct via82xx *chip = snd_kcontrol_chip(kcontrol);
1da177e4
LT		 1577 u8 val;
1578
1579 pci_read_config_byte(chip->pci, VIA8233_SPDIF_CTRL, &val);
1580 ucontrol->value.integer.value[0] = (val & VIA8233_SPDIF_DX3) ? 1 : 0;
1581 return 0;
1582}
1583
e437e3d7
TI		 1584static int snd_via8233_dxs3_spdif_put(struct snd_kcontrol *kcontrol,
1585 struct snd_ctl_elem_value *ucontrol)
1da177e4 1586{
e437e3d7 1587 struct via82xx *chip = snd_kcontrol_chip(kcontrol);
1da177e4
LT		 1588 u8 val, oval;
1589
1590 pci_read_config_byte(chip->pci, VIA8233_SPDIF_CTRL, &oval);
1591 val = oval & ~VIA8233_SPDIF_DX3;
1592 if (ucontrol->value.integer.value[0])
1593 val |= VIA8233_SPDIF_DX3;
1594 /* save the spdif flag for rate filtering */
1595 chip->spdif_on = ucontrol->value.integer.value[0] ? 1 : 0;
1596 if (val != oval) {
1597 pci_write_config_byte(chip->pci, VIA8233_SPDIF_CTRL, val);
1598 return 1;
1599 }
1600 return 0;
1601}
1602
e437e3d7 1603static struct snd_kcontrol_new snd_via8233_dxs3_spdif_control __devinitdata = {
10e8d78a 1604 .name = SNDRV_CTL_NAME_IEC958("Output ",NONE,SWITCH),
1da177e4
LT		 1605 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1606 .info = snd_via8233_dxs3_spdif_info,
1607 .get = snd_via8233_dxs3_spdif_get,
1608 .put = snd_via8233_dxs3_spdif_put,
1609};
1610
e437e3d7
TI		 1611static int snd_via8233_dxs_volume_info(struct snd_kcontrol *kcontrol,
1612 struct snd_ctl_elem_info *uinfo)
1da177e4
LT		 1613{
1614 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
1615 uinfo->count = 2;
1616 uinfo->value.integer.min = 0;
1617 uinfo->value.integer.max = VIA_DXS_MAX_VOLUME;
1618 return 0;
1619}
1620
e437e3d7
TI		 1621static int snd_via8233_dxs_volume_get(struct snd_kcontrol *kcontrol,
1622 struct snd_ctl_elem_value *ucontrol)
1da177e4 1623{
e437e3d7 1624 struct via82xx *chip = snd_kcontrol_chip(kcontrol);
00f226d4
HM		 1625 unsigned int idx = snd_ctl_get_ioff(kcontrol, &ucontrol->id);
1626
1627 ucontrol->value.integer.value[0] = VIA_DXS_MAX_VOLUME - chip->playback_volume[idx][0];
1628 ucontrol->value.integer.value[1] = VIA_DXS_MAX_VOLUME - chip->playback_volume[idx][1];
1629 return 0;
1630}
1631
e437e3d7
TI		 1632static int snd_via8233_pcmdxs_volume_get(struct snd_kcontrol *kcontrol,
1633 struct snd_ctl_elem_value *ucontrol)
00f226d4 1634{
e437e3d7 1635 struct via82xx *chip = snd_kcontrol_chip(kcontrol);
00f226d4
HM		 1636 ucontrol->value.integer.value[0] = VIA_DXS_MAX_VOLUME - chip->playback_volume_c[0];
1637 ucontrol->value.integer.value[1] = VIA_DXS_MAX_VOLUME - chip->playback_volume_c[1];
1da177e4
LT		 1638 return 0;
1639}
1640
e437e3d7
TI		 1641static int snd_via8233_dxs_volume_put(struct snd_kcontrol *kcontrol,
1642 struct snd_ctl_elem_value *ucontrol)
00f226d4 1643{
e437e3d7 1644 struct via82xx *chip = snd_kcontrol_chip(kcontrol);
00f226d4
HM		 1645 unsigned int idx = snd_ctl_get_ioff(kcontrol, &ucontrol->id);
1646 unsigned long port = chip->port + 0x10 * idx;
1647 unsigned char val;
1648 int i, change = 0;
1649
1650 for (i = 0; i < 2; i++) {
1651 val = ucontrol->value.integer.value[i];
1652 if (val > VIA_DXS_MAX_VOLUME)
1653 val = VIA_DXS_MAX_VOLUME;
1654 val = VIA_DXS_MAX_VOLUME - val;
1655 change |= val != chip->playback_volume[idx][i];
1656 if (change) {
1657 chip->playback_volume[idx][i] = val;
1658 outb(val, port + VIA_REG_OFS_PLAYBACK_VOLUME_L + i);
1659 }
1660 }
1661 return change;
1662}
1663
e437e3d7
TI		 1664static int snd_via8233_pcmdxs_volume_put(struct snd_kcontrol *kcontrol,
1665 struct snd_ctl_elem_value *ucontrol)
1da177e4 1666{
e437e3d7 1667 struct via82xx *chip = snd_kcontrol_chip(kcontrol);
1da177e4
LT		 1668 unsigned int idx;
1669 unsigned char val;
1670 int i, change = 0;
1671
1672 for (i = 0; i < 2; i++) {
1673 val = ucontrol->value.integer.value[i];
1674 if (val > VIA_DXS_MAX_VOLUME)
1675 val = VIA_DXS_MAX_VOLUME;
1676 val = VIA_DXS_MAX_VOLUME - val;
00f226d4 1677 if (val != chip->playback_volume_c[i]) {
1da177e4 1678 change = 1;
00f226d4 1679 chip->playback_volume_c[i] = val;
1da177e4
LT		 1680 for (idx = 0; idx < 4; idx++) {
1681 unsigned long port = chip->port + 0x10 * idx;
00f226d4 1682 chip->playback_volume[idx][i] = val;
1da177e4
LT		 1683 outb(val, port + VIA_REG_OFS_PLAYBACK_VOLUME_L + i);
1684 }
1685 }
1686 }
1687 return change;
1688}
1689
0cb29ea0 1690static const DECLARE_TLV_DB_SCALE(db_scale_dxs, -9450, 150, 1);
7058c042 1691
e437e3d7 1692static struct snd_kcontrol_new snd_via8233_pcmdxs_volume_control __devinitdata = {
1da177e4
LT		 1693 .name = "PCM Playback Volume",
1694 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
7058c042
TI		 1695 .access = (SNDRV_CTL_ELEM_ACCESS_READWRITE |
1696 SNDRV_CTL_ELEM_ACCESS_TLV_READ),
1da177e4 1697 .info = snd_via8233_dxs_volume_info,
00f226d4
HM		 1698 .get = snd_via8233_pcmdxs_volume_get,
1699 .put = snd_via8233_pcmdxs_volume_put,
7058c042 1700 .tlv = { .p = db_scale_dxs }
00f226d4
HM		 1701};
1702
e437e3d7 1703static struct snd_kcontrol_new snd_via8233_dxs_volume_control __devinitdata = {
00f226d4
HM		 1704 .name = "VIA DXS Playback Volume",
1705 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
7058c042
TI		 1706 .access = (SNDRV_CTL_ELEM_ACCESS_READWRITE |
1707 SNDRV_CTL_ELEM_ACCESS_TLV_READ),
00f226d4
HM		 1708 .count = 4,
1709 .info = snd_via8233_dxs_volume_info,
1da177e4
LT		 1710 .get = snd_via8233_dxs_volume_get,
1711 .put = snd_via8233_dxs_volume_put,
7058c042 1712 .tlv = { .p = db_scale_dxs }
1da177e4
LT		 1713};
1714
1715/*
1716 */
1717
e437e3d7 1718static void snd_via82xx_mixer_free_ac97_bus(struct snd_ac97_bus *bus)
1da177e4 1719{
e437e3d7 1720 struct via82xx *chip = bus->private_data;
1da177e4
LT		 1721 chip->ac97_bus = NULL;
1722}
1723
e437e3d7 1724static void snd_via82xx_mixer_free_ac97(struct snd_ac97 *ac97)
1da177e4 1725{
e437e3d7 1726 struct via82xx *chip = ac97->private_data;
1da177e4
LT		 1727 chip->ac97 = NULL;
1728}
1729
1730static struct ac97_quirk ac97_quirks[] = {
1731 {
69ad07cf
JK		 1732 .subvendor = 0x1106,
1733 .subdevice = 0x4161,
1da177e4
LT		 1734 .codec_id = 0x56494161, /* VT1612A */
1735 .name = "Soltek SL-75DRV5",
1736 .type = AC97_TUNE_NONE
1737 },
1738 { /* FIXME: which codec? */
69ad07cf
JK		 1739 .subvendor = 0x1106,
1740 .subdevice = 0x4161,
1da177e4
LT		 1741 .name = "ASRock K7VT2",
1742 .type = AC97_TUNE_HP_ONLY
1743 },
1744 {
69ad07cf
JK		 1745 .subvendor = 0x1019,
1746 .subdevice = 0x0a81,
1da177e4
LT		 1747 .name = "ECS K7VTA3",
1748 .type = AC97_TUNE_HP_ONLY
1749 },
1750 {
69ad07cf
JK		 1751 .subvendor = 0x1019,
1752 .subdevice = 0x0a85,
1da177e4
LT		 1753 .name = "ECS L7VMM2",
1754 .type = AC97_TUNE_HP_ONLY
1755 },
942fd1eb
WS		 1756 {
1757 .subvendor = 0x1019,
1758 .subdevice = 0x1841,
1759 .name = "ECS K7VTA3",
1760 .type = AC97_TUNE_HP_ONLY
1761 },
1da177e4 1762 {
69ad07cf
JK		 1763 .subvendor = 0x1849,
1764 .subdevice = 0x3059,
1da177e4
LT		 1765 .name = "ASRock K7VM2",
1766 .type = AC97_TUNE_HP_ONLY /* VT1616 */
1767 },
1768 {
69ad07cf
JK		 1769 .subvendor = 0x14cd,
1770 .subdevice = 0x7002,
1da177e4
LT		 1771 .name = "Unknown",
1772 .type = AC97_TUNE_ALC_JACK
1773 },
1774 {
69ad07cf
JK		 1775 .subvendor = 0x1071,
1776 .subdevice = 0x8590,
1da177e4
LT		 1777 .name = "Mitac Mobo",
1778 .type = AC97_TUNE_ALC_JACK
1779 },
1780 {
69ad07cf
JK		 1781 .subvendor = 0x161f,
1782 .subdevice = 0x202b,
1da177e4
LT		 1783 .name = "Arima Notebook",
1784 .type = AC97_TUNE_HP_ONLY,
1785 },
dac8dddd
TI		 1786 {
1787 .subvendor = 0x161f,
1788 .subdevice = 0x2032,
1789 .name = "Targa Traveller 811",
1790 .type = AC97_TUNE_HP_ONLY,
1791 },
d4199f01
DC		 1792 {
1793 .subvendor = 0x161f,
1794 .subdevice = 0x2032,
1795 .name = "m680x",
1796 .type = AC97_TUNE_HP_ONLY, /* http://launchpad.net/bugs/38546 */
1797 },
9674513d
TI		 1798 {
1799 .subvendor = 0x1297,
1800 .subdevice = 0xa232,
1801 .name = "Shuttle AK32VN",
1802 .type = AC97_TUNE_HP_ONLY
1803 },
1da177e4
LT		 1804 { } /* terminator */
1805};
1806
e437e3d7 1807static int __devinit snd_via82xx_mixer_new(struct via82xx *chip, const char *quirk_override)
1da177e4 1808{
e437e3d7 1809 struct snd_ac97_template ac97;
1da177e4 1810 int err;
e437e3d7 1811 static struct snd_ac97_bus_ops ops = {
1da177e4
LT		 1812 .write = snd_via82xx_codec_write,
1813 .read = snd_via82xx_codec_read,
1814 .wait = snd_via82xx_codec_wait,
1815 };
1816
1817 if ((err = snd_ac97_bus(chip->card, 0, &ops, chip, &chip->ac97_bus)) < 0)
1818 return err;
1819 chip->ac97_bus->private_free = snd_via82xx_mixer_free_ac97_bus;
1820 chip->ac97_bus->clock = chip->ac97_clock;
1da177e4
LT		 1821
1822 memset(&ac97, 0, sizeof(ac97));
1823 ac97.private_data = chip;
1824 ac97.private_free = snd_via82xx_mixer_free_ac97;
1825 ac97.pci = chip->pci;
f1a63a38 1826 ac97.scaps = AC97_SCAP_SKIP_MODEM | AC97_SCAP_POWER_SAVE;
1da177e4
LT		 1827 if ((err = snd_ac97_mixer(chip->ac97_bus, &ac97, &chip->ac97)) < 0)
1828 return err;
1829
1830 snd_ac97_tune_hardware(chip->ac97, ac97_quirks, quirk_override);
1831
1832 if (chip->chip_type != TYPE_VIA686) {
1833 /* use slot 10/11 */
1834 snd_ac97_update_bits(chip->ac97, AC97_EXTENDED_STATUS, 0x03 << 4, 0x03 << 4);
1835 }
1836
1837 return 0;
1838}
1839
1840#ifdef SUPPORT_JOYSTICK
1841#define JOYSTICK_ADDR 0x200
e437e3d7 1842static int __devinit snd_via686_create_gameport(struct via82xx *chip, unsigned char *legacy)
1da177e4
LT		 1843{
1844 struct gameport *gp;
1845 struct resource *r;
1846
b7fe4622 1847 if (!joystick)
1da177e4
LT		 1848 return -ENODEV;
1849
1850 r = request_region(JOYSTICK_ADDR, 8, "VIA686 gameport");
1851 if (!r) {
e437e3d7
TI		 1852 printk(KERN_WARNING "via82xx: cannot reserve joystick port 0x%#x\n",
1853 JOYSTICK_ADDR);
1da177e4
LT		 1854 return -EBUSY;
1855 }
1856
1857 chip->gameport = gp = gameport_allocate_port();
1858 if (!gp) {
1859 printk(KERN_ERR "via82xx: cannot allocate memory for gameport\n");
b1d5776d 1860 release_and_free_resource(r);
1da177e4
LT		 1861 return -ENOMEM;
1862 }
1863
1864 gameport_set_name(gp, "VIA686 Gameport");
1865 gameport_set_phys(gp, "pci%s/gameport0", pci_name(chip->pci));
1866 gameport_set_dev_parent(gp, &chip->pci->dev);
1867 gp->io = JOYSTICK_ADDR;
1868 gameport_set_port_data(gp, r);
1869
1870 /* Enable legacy joystick port */
1871 *legacy |= VIA_FUNC_ENABLE_GAME;
1872 pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE, *legacy);
1873
1874 gameport_register_port(chip->gameport);
1875
1876 return 0;
1877}
1878
e437e3d7 1879static void snd_via686_free_gameport(struct via82xx *chip)
1da177e4
LT		 1880{
1881 if (chip->gameport) {
1882 struct resource *r = gameport_get_port_data(chip->gameport);
1883
1884 gameport_unregister_port(chip->gameport);
1885 chip->gameport = NULL;
b1d5776d 1886 release_and_free_resource(r);
1da177e4
LT		 1887 }
1888}
1889#else
e437e3d7 1890static inline int snd_via686_create_gameport(struct via82xx *chip, unsigned char *legacy)
1da177e4
LT		 1891{
1892 return -ENOSYS;
1893}
e437e3d7 1894static inline void snd_via686_free_gameport(struct via82xx *chip) { }
1da177e4
LT		 1895#endif
1896
1897
1898/*
1899 *
1900 */
1901
e437e3d7 1902static int __devinit snd_via8233_init_misc(struct via82xx *chip)
1da177e4
LT		 1903{
1904 int i, err, caps;
1905 unsigned char val;
1906
1907 caps = chip->chip_type == TYPE_VIA8233A ? 1 : 2;
1908 for (i = 0; i < caps; i++) {
1909 snd_via8233_capture_source.index = i;
1910 err = snd_ctl_add(chip->card, snd_ctl_new1(&snd_via8233_capture_source, chip));
1911 if (err < 0)
1912 return err;
1913 }
1914 if (ac97_can_spdif(chip->ac97)) {
1915 err = snd_ctl_add(chip->card, snd_ctl_new1(&snd_via8233_dxs3_spdif_control, chip));
1916 if (err < 0)
1917 return err;
1918 }
1919 if (chip->chip_type != TYPE_VIA8233A) {
1920 /* when no h/w PCM volume control is found, use DXS volume control
1921 * as the PCM vol control
1922 */
e437e3d7 1923 struct snd_ctl_elem_id sid;
1da177e4
LT		 1924 memset(&sid, 0, sizeof(sid));
1925 strcpy(sid.name, "PCM Playback Volume");
1926 sid.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
1927 if (! snd_ctl_find_id(chip->card, &sid)) {
00f226d4
HM		 1928 snd_printd(KERN_INFO "Using DXS as PCM Playback\n");
1929 err = snd_ctl_add(chip->card, snd_ctl_new1(&snd_via8233_pcmdxs_volume_control, chip));
1930 if (err < 0)
1931 return err;
1932 }
1933 else /* Using DXS when PCM emulation is enabled is really weird */
1934 {
1935 /* Standalone DXS controls */
1da177e4
LT		 1936 err = snd_ctl_add(chip->card, snd_ctl_new1(&snd_via8233_dxs_volume_control, chip));
1937 if (err < 0)
1938 return err;
1939 }
1940 }
1da177e4
LT		 1941 /* select spdif data slot 10/11 */
1942 pci_read_config_byte(chip->pci, VIA8233_SPDIF_CTRL, &val);
1943 val = (val & ~VIA8233_SPDIF_SLOT_MASK) | VIA8233_SPDIF_SLOT_1011;
1944 val &= ~VIA8233_SPDIF_DX3; /* SPDIF off as default */
1945 pci_write_config_byte(chip->pci, VIA8233_SPDIF_CTRL, val);
1946
1947 return 0;
1948}
1949
e437e3d7 1950static int __devinit snd_via686_init_misc(struct via82xx *chip)
1da177e4
LT		 1951{
1952 unsigned char legacy, legacy_cfg;
1953 int rev_h = 0;
1954
1955 legacy = chip->old_legacy;
1956 legacy_cfg = chip->old_legacy_cfg;
1957 legacy |= VIA_FUNC_MIDI_IRQMASK; /* FIXME: correct? (disable MIDI) */
1958 legacy &= ~VIA_FUNC_ENABLE_GAME; /* disable joystick */
1959 if (chip->revision >= VIA_REV_686_H) {
1960 rev_h = 1;
b7fe4622
CL		 1961 if (mpu_port >= 0x200) { /* force MIDI */
1962 mpu_port &= 0xfffc;
1963 pci_write_config_dword(chip->pci, 0x18, mpu_port | 0x01);
1da177e4 1964#ifdef CONFIG_PM
b7fe4622 1965 chip->mpu_port_saved = mpu_port;
1da177e4
LT		 1966#endif
1967 } else {
b7fe4622 1968 mpu_port = pci_resource_start(chip->pci, 2);
1da177e4
LT		 1969 }
1970 } else {
b7fe4622 1971 switch (mpu_port) { /* force MIDI */
1da177e4
LT		 1972 case 0x300:
1973 case 0x310:
1974 case 0x320:
1975 case 0x330:
1976 legacy_cfg &= ~(3 << 2);
b7fe4622 1977 legacy_cfg |= (mpu_port & 0x0030) >> 2;
1da177e4
LT		 1978 break;
1979 default: /* no, use BIOS settings */
1980 if (legacy & VIA_FUNC_ENABLE_MIDI)
b7fe4622 1981 mpu_port = 0x300 + ((legacy_cfg & 0x000c) << 2);
1da177e4
LT		 1982 break;
1983 }
1984 }
b7fe4622
CL		 1985 if (mpu_port >= 0x200 &&
1986 (chip->mpu_res = request_region(mpu_port, 2, "VIA82xx MPU401"))
1987 != NULL) {
1da177e4
LT		 1988 if (rev_h)
1989 legacy |= VIA_FUNC_MIDI_PNP; /* enable PCI I/O 2 */
1990 legacy |= VIA_FUNC_ENABLE_MIDI;
1991 } else {
1992 if (rev_h)
1993 legacy &= ~VIA_FUNC_MIDI_PNP; /* disable PCI I/O 2 */
1994 legacy &= ~VIA_FUNC_ENABLE_MIDI;
b7fe4622 1995 mpu_port = 0;
1da177e4
LT		 1996 }
1997
1998 pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE, legacy);
1999 pci_write_config_byte(chip->pci, VIA_PNP_CONTROL, legacy_cfg);
2000 if (chip->mpu_res) {
2001 if (snd_mpu401_uart_new(chip->card, 0, MPU401_HW_VIA686A,
302e4c2f 2002 mpu_port, MPU401_INFO_INTEGRATED,
1da177e4 2003 chip->irq, 0, &chip->rmidi) < 0) {
b7fe4622
CL		 2004 printk(KERN_WARNING "unable to initialize MPU-401"
2005 " at 0x%lx, skipping\n", mpu_port);
1da177e4
LT		 2006 legacy &= ~VIA_FUNC_ENABLE_MIDI;
2007 } else {
2008 legacy &= ~VIA_FUNC_MIDI_IRQMASK; /* enable MIDI interrupt */
2009 }
2010 pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE, legacy);
2011 }
2012
b7fe4622 2013 snd_via686_create_gameport(chip, &legacy);
1da177e4
LT		 2014
2015#ifdef CONFIG_PM
2016 chip->legacy_saved = legacy;
2017 chip->legacy_cfg_saved = legacy_cfg;
2018#endif
2019
2020 return 0;
2021}
2022
2023
2024/*
2025 * proc interface
2026 */
e437e3d7
TI		 2027static void snd_via82xx_proc_read(struct snd_info_entry *entry,
2028 struct snd_info_buffer *buffer)
1da177e4 2029{
e437e3d7 2030 struct via82xx *chip = entry->private_data;
1da177e4
LT		 2031 int i;
2032
2033 snd_iprintf(buffer, "%s\n\n", chip->card->longname);
2034 for (i = 0; i < 0xa0; i += 4) {
2035 snd_iprintf(buffer, "%02x: %08x\n", i, inl(chip->port + i));
2036 }
2037}
2038
e437e3d7 2039static void __devinit snd_via82xx_proc_init(struct via82xx *chip)
1da177e4 2040{
e437e3d7 2041 struct snd_info_entry *entry;
1da177e4
LT		 2042
2043 if (! snd_card_proc_new(chip->card, "via82xx", &entry))
bf850204 2044 snd_info_set_text_ops(entry, chip, snd_via82xx_proc_read);
1da177e4
LT		 2045}
2046
2047/*
2048 *
2049 */
2050
e437e3d7 2051static int snd_via82xx_chip_init(struct via82xx *chip)
1da177e4
LT		 2052{
2053 unsigned int val;
ef21ca24 2054 unsigned long end_time;
1da177e4
LT		 2055 unsigned char pval;
2056
2057#if 0 /* broken on K7M? */
2058 if (chip->chip_type == TYPE_VIA686)
2059 /* disable all legacy ports */
2060 pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE, 0);
2061#endif
2062 pci_read_config_byte(chip->pci, VIA_ACLINK_STAT, &pval);
2063 if (! (pval & VIA_ACLINK_C00_READY)) { /* codec not ready? */
2064 /* deassert ACLink reset, force SYNC */
2065 pci_write_config_byte(chip->pci, VIA_ACLINK_CTRL,
2066 VIA_ACLINK_CTRL_ENABLE |
2067 VIA_ACLINK_CTRL_RESET |
2068 VIA_ACLINK_CTRL_SYNC);
2069 udelay(100);
2070#if 1 /* FIXME: should we do full reset here for all chip models? */
2071 pci_write_config_byte(chip->pci, VIA_ACLINK_CTRL, 0x00);
2072 udelay(100);
2073#else
2074 /* deassert ACLink reset, force SYNC (warm AC'97 reset) */
2075 pci_write_config_byte(chip->pci, VIA_ACLINK_CTRL,
2076 VIA_ACLINK_CTRL_RESET|VIA_ACLINK_CTRL_SYNC);
2077 udelay(2);
2078#endif
2079 /* ACLink on, deassert ACLink reset, VSR, SGD data out */
2080 /* note - FM data out has trouble with non VRA codecs !! */
2081 pci_write_config_byte(chip->pci, VIA_ACLINK_CTRL, VIA_ACLINK_CTRL_INIT);
2082 udelay(100);
2083 }
2084
2085 /* Make sure VRA is enabled, in case we didn't do a
2086 * complete codec reset, above */
2087 pci_read_config_byte(chip->pci, VIA_ACLINK_CTRL, &pval);
2088 if ((pval & VIA_ACLINK_CTRL_INIT) != VIA_ACLINK_CTRL_INIT) {
2089 /* ACLink on, deassert ACLink reset, VSR, SGD data out */
2090 /* note - FM data out has trouble with non VRA codecs !! */
2091 pci_write_config_byte(chip->pci, VIA_ACLINK_CTRL, VIA_ACLINK_CTRL_INIT);
2092 udelay(100);
2093 }
2094
2095 /* wait until codec ready */
ef21ca24 2096 end_time = jiffies + msecs_to_jiffies(750);
1da177e4
LT		 2097 do {
2098 pci_read_config_byte(chip->pci, VIA_ACLINK_STAT, &pval);
2099 if (pval & VIA_ACLINK_C00_READY) /* primary codec ready */
2100 break;
d86d0193 2101 schedule_timeout_uninterruptible(1);
ef21ca24 2102 } while (time_before(jiffies, end_time));
1da177e4
LT		 2103
2104 if ((val = snd_via82xx_codec_xread(chip)) & VIA_REG_AC97_BUSY)
99b359ba 2105 snd_printk(KERN_ERR "AC'97 codec is not ready [0x%x]\n", val);
1da177e4
LT		 2106
2107#if 0 /* FIXME: we don't support the second codec yet so skip the detection now.. */
2108 snd_via82xx_codec_xwrite(chip, VIA_REG_AC97_READ |
2109 VIA_REG_AC97_SECONDARY_VALID |
2110 (VIA_REG_AC97_CODEC_ID_SECONDARY << VIA_REG_AC97_CODEC_ID_SHIFT));
ef21ca24 2111 end_time = jiffies + msecs_to_jiffies(750);
1da177e4
LT		 2112 snd_via82xx_codec_xwrite(chip, VIA_REG_AC97_READ |
2113 VIA_REG_AC97_SECONDARY_VALID |
2114 (VIA_REG_AC97_CODEC_ID_SECONDARY << VIA_REG_AC97_CODEC_ID_SHIFT));
2115 do {
2116 if ((val = snd_via82xx_codec_xread(chip)) & VIA_REG_AC97_SECONDARY_VALID) {
2117 chip->ac97_secondary = 1;
2118 goto __ac97_ok2;
2119 }
d86d0193 2120 schedule_timeout_uninterruptible(1);
ef21ca24 2121 } while (time_before(jiffies, end_time));
1da177e4
LT		 2122 /* This is ok, the most of motherboards have only one codec */
2123
2124 __ac97_ok2:
2125#endif
2126
2127 if (chip->chip_type == TYPE_VIA686) {
2128 /* route FM trap to IRQ, disable FM trap */
2129 pci_write_config_byte(chip->pci, VIA_FM_NMI_CTRL, 0);
2130 /* disable all GPI interrupts */
2131 outl(0, VIAREG(chip, GPI_INTR));
2132 }
2133
2134 if (chip->chip_type != TYPE_VIA686) {
2135 /* Workaround for Award BIOS bug:
2136 * DXS channels don't work properly with VRA if MC97 is disabled.
2137 */
2138 struct pci_dev *pci;
0dd119f7 2139 pci = pci_get_device(0x1106, 0x3068, NULL); /* MC97 */
1da177e4
LT		 2140 if (pci) {
2141 unsigned char data;
2142 pci_read_config_byte(pci, 0x44, &data);
2143 pci_write_config_byte(pci, 0x44, data | 0x40);
0dd119f7 2144 pci_dev_put(pci);
1da177e4
LT		 2145 }
2146 }
2147
2148 if (chip->chip_type != TYPE_VIA8233A) {
2149 int i, idx;
2150 for (idx = 0; idx < 4; idx++) {
2151 unsigned long port = chip->port + 0x10 * idx;
00f226d4
HM		 2152 for (i = 0; i < 2; i++) {
2153 chip->playback_volume[idx][i]=chip->playback_volume_c[i];
e437e3d7
TI		 2154 outb(chip->playback_volume_c[i],
2155 port + VIA_REG_OFS_PLAYBACK_VOLUME_L + i);
00f226d4 2156 }
1da177e4
LT		 2157 }
2158 }
2159
2160 return 0;
2161}
2162
2163#ifdef CONFIG_PM
2164/*
2165 * power management
2166 */
57feb835 2167static int snd_via82xx_suspend(struct pci_dev *pci, pm_message_t state)
1da177e4 2168{
57feb835
TI		 2169 struct snd_card *card = pci_get_drvdata(pci);
2170 struct via82xx *chip = card->private_data;
1da177e4
LT		 2171 int i;
2172
57feb835 2173 snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
1da177e4 2174 for (i = 0; i < 2; i++)
57feb835 2175 snd_pcm_suspend_all(chip->pcms[i]);
1da177e4
LT		 2176 for (i = 0; i < chip->num_devs; i++)
2177 snd_via82xx_channel_reset(chip, &chip->devs[i]);
2178 synchronize_irq(chip->irq);
2179 snd_ac97_suspend(chip->ac97);
2180
2181 /* save misc values */
2182 if (chip->chip_type != TYPE_VIA686) {
2183 pci_read_config_byte(chip->pci, VIA8233_SPDIF_CTRL, &chip->spdif_ctrl_saved);
2184 chip->capture_src_saved[0] = inb(chip->port + VIA_REG_CAPTURE_CHANNEL);
2185 chip->capture_src_saved[1] = inb(chip->port + VIA_REG_CAPTURE_CHANNEL + 0x10);
2186 }
2187
57feb835
TI		 2188 pci_disable_device(pci);
2189 pci_save_state(pci);
30b35399 2190 pci_set_power_state(pci, pci_choose_state(pci, state));
1da177e4
LT		 2191 return 0;
2192}
2193
57feb835 2194static int snd_via82xx_resume(struct pci_dev *pci)
1da177e4 2195{
57feb835
TI		 2196 struct snd_card *card = pci_get_drvdata(pci);
2197 struct via82xx *chip = card->private_data;
1da177e4
LT		 2198 int i;
2199
57feb835 2200 pci_set_power_state(pci, PCI_D0);
30b35399
TI		 2201 pci_restore_state(pci);
2202 if (pci_enable_device(pci) < 0) {
2203 printk(KERN_ERR "via82xx: pci_enable_device failed, "
2204 "disabling device\n");
2205 snd_card_disconnect(card);
2206 return -EIO;
2207 }
2208 pci_set_master(pci);
1da177e4
LT		 2209
2210 snd_via82xx_chip_init(chip);
2211
2212 if (chip->chip_type == TYPE_VIA686) {
2213 if (chip->mpu_port_saved)
2214 pci_write_config_dword(chip->pci, 0x18, chip->mpu_port_saved | 0x01);
2215 pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE, chip->legacy_saved);
2216 pci_write_config_byte(chip->pci, VIA_PNP_CONTROL, chip->legacy_cfg_saved);
2217 } else {
2218 pci_write_config_byte(chip->pci, VIA8233_SPDIF_CTRL, chip->spdif_ctrl_saved);
2219 outb(chip->capture_src_saved[0], chip->port + VIA_REG_CAPTURE_CHANNEL);
2220 outb(chip->capture_src_saved[1], chip->port + VIA_REG_CAPTURE_CHANNEL + 0x10);
2221 }
2222
2223 snd_ac97_resume(chip->ac97);
2224
2225 for (i = 0; i < chip->num_devs; i++)
2226 snd_via82xx_channel_reset(chip, &chip->devs[i]);
2227
57feb835 2228 snd_power_change_state(card, SNDRV_CTL_POWER_D0);
1da177e4
LT		 2229 return 0;
2230}
2231#endif /* CONFIG_PM */
2232
e437e3d7 2233static int snd_via82xx_free(struct via82xx *chip)
1da177e4
LT		 2234{
2235 unsigned int i;
2236
2237 if (chip->irq < 0)
2238 goto __end_hw;
2239 /* disable interrupts */
2240 for (i = 0; i < chip->num_devs; i++)
2241 snd_via82xx_channel_reset(chip, &chip->devs[i]);
f000fd80 2242
1da177e4 2243 if (chip->irq >= 0)
e437e3d7 2244 free_irq(chip->irq, chip);
757d5a75 2245 __end_hw:
b1d5776d 2246 release_and_free_resource(chip->mpu_res);
1da177e4
LT		 2247 pci_release_regions(chip->pci);
2248
2249 if (chip->chip_type == TYPE_VIA686) {
2250 snd_via686_free_gameport(chip);
2251 pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE, chip->old_legacy);
2252 pci_write_config_byte(chip->pci, VIA_PNP_CONTROL, chip->old_legacy_cfg);
2253 }
2254 pci_disable_device(chip->pci);
2255 kfree(chip);
2256 return 0;
2257}
2258
e437e3d7 2259static int snd_via82xx_dev_free(struct snd_device *device)
1da177e4 2260{
e437e3d7 2261 struct via82xx *chip = device->device_data;
1da177e4
LT		 2262 return snd_via82xx_free(chip);
2263}
2264
e437e3d7 2265static int __devinit snd_via82xx_create(struct snd_card *card,
1da177e4
LT		 2266 struct pci_dev *pci,
2267 int chip_type,
2268 int revision,
2269 unsigned int ac97_clock,
e437e3d7 2270 struct via82xx ** r_via)
1da177e4 2271{
e437e3d7 2272 struct via82xx *chip;
1da177e4 2273 int err;
e437e3d7 2274 static struct snd_device_ops ops = {
1da177e4
LT		 2275 .dev_free = snd_via82xx_dev_free,
2276 };
2277
2278 if ((err = pci_enable_device(pci)) < 0)
2279 return err;
2280
e560d8d8 2281 if ((chip = kzalloc(sizeof(*chip), GFP_KERNEL)) == NULL) {
1da177e4
LT		 2282 pci_disable_device(pci);
2283 return -ENOMEM;
2284 }
2285
2286 chip->chip_type = chip_type;
2287 chip->revision = revision;
2288
2289 spin_lock_init(&chip->reg_lock);
2290 spin_lock_init(&chip->rates[0].lock);
2291 spin_lock_init(&chip->rates[1].lock);
2292 chip->card = card;
2293 chip->pci = pci;
2294 chip->irq = -1;
2295
2296 pci_read_config_byte(pci, VIA_FUNC_ENABLE, &chip->old_legacy);
2297 pci_read_config_byte(pci, VIA_PNP_CONTROL, &chip->old_legacy_cfg);
2298 pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE,
2299 chip->old_legacy & ~(VIA_FUNC_ENABLE_SB|VIA_FUNC_ENABLE_FM));
2300
2301 if ((err = pci_request_regions(pci, card->driver)) < 0) {
2302 kfree(chip);
2303 pci_disable_device(pci);
2304 return err;
2305 }
2306 chip->port = pci_resource_start(pci, 0);
4f550df5
KW		 2307 if (request_irq(pci->irq,
2308 chip_type == TYPE_VIA8233 ?
2309 snd_via8233_interrupt : snd_via686_interrupt,
437a5a46 2310 IRQF_SHARED,
e437e3d7 2311 card->driver, chip)) {
99b359ba 2312 snd_printk(KERN_ERR "unable to grab IRQ %d\n", pci->irq);
1da177e4
LT		 2313 snd_via82xx_free(chip);
2314 return -EBUSY;
2315 }
2316 chip->irq = pci->irq;
2317 if (ac97_clock >= 8000 && ac97_clock <= 48000)
2318 chip->ac97_clock = ac97_clock;
2319 synchronize_irq(chip->irq);
2320
2321 if ((err = snd_via82xx_chip_init(chip)) < 0) {
2322 snd_via82xx_free(chip);
2323 return err;
2324 }
2325
2326 if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
2327 snd_via82xx_free(chip);
2328 return err;
2329 }
2330
2331 /* The 8233 ac97 controller does not implement the master bit
2332 * in the pci command register. IMHO this is a violation of the PCI spec.
2333 * We call pci_set_master here because it does not hurt. */
2334 pci_set_master(pci);
2335
2336 snd_card_set_dev(card, &pci->dev);
2337
2338 *r_via = chip;
2339 return 0;
2340}
2341
2342struct via823x_info {
2343 int revision;
2344 char *name;
2345 int type;
2346};
2347static struct via823x_info via823x_cards[] __devinitdata = {
2348 { VIA_REV_PRE_8233, "VIA 8233-Pre", TYPE_VIA8233 },
2349 { VIA_REV_8233C, "VIA 8233C", TYPE_VIA8233 },
2350 { VIA_REV_8233, "VIA 8233", TYPE_VIA8233 },
2351 { VIA_REV_8233A, "VIA 8233A", TYPE_VIA8233A },
2352 { VIA_REV_8235, "VIA 8235", TYPE_VIA8233 },
2353 { VIA_REV_8237, "VIA 8237", TYPE_VIA8233 },
8263c65f 2354 { VIA_REV_8251, "VIA 8251", TYPE_VIA8233 },
1da177e4
LT		 2355};
2356
2357/*
2358 * auto detection of DXS channel supports.
2359 */
9d74958a
TI		 2360
2361static struct snd_pci_quirk dxs_whitelist[] __devinitdata = {
2362 SND_PCI_QUIRK(0x1005, 0x4710, "Avance Logic Mobo", VIA_DXS_ENABLE),
2363 SND_PCI_QUIRK(0x1019, 0x0996, "ESC Mobo", VIA_DXS_48K),
2364 SND_PCI_QUIRK(0x1019, 0x0a81, "ECS K7VTA3 v8.0", VIA_DXS_NO_VRA),
2365 SND_PCI_QUIRK(0x1019, 0x0a85, "ECS L7VMM2", VIA_DXS_NO_VRA),
a85165c6 2366 SND_PCI_QUIRK_VENDOR(0x1019, "ESC K8", VIA_DXS_SRC),
9d74958a
TI		 2367 SND_PCI_QUIRK(0x1019, 0xaa01, "ESC K8T890-A", VIA_DXS_SRC),
2368 SND_PCI_QUIRK(0x1025, 0x0033, "Acer Inspire 1353LM", VIA_DXS_NO_VRA),
2369 SND_PCI_QUIRK(0x1025, 0x0046, "Acer Aspire 1524 WLMi", VIA_DXS_SRC),
a85165c6
TI		 2370 SND_PCI_QUIRK_VENDOR(0x1043, "ASUS A7/A8", VIA_DXS_NO_VRA),
2371 SND_PCI_QUIRK_VENDOR(0x1071, "Diverse Notebook", VIA_DXS_NO_VRA),
9d74958a 2372 SND_PCI_QUIRK(0x10cf, 0x118e, "FSC Laptop", VIA_DXS_ENABLE),
a85165c6 2373 SND_PCI_QUIRK_VENDOR(0x1106, "ASRock", VIA_DXS_SRC),
11be265f 2374 SND_PCI_QUIRK(0x1297, 0xa231, "Shuttle AK31v2", VIA_DXS_SRC),
9674513d
TI		 2375 SND_PCI_QUIRK(0x1297, 0xa232, "Shuttle", VIA_DXS_SRC),
2376 SND_PCI_QUIRK(0x1297, 0xc160, "Shuttle Sk41G", VIA_DXS_SRC),
9d74958a
TI		 2377 SND_PCI_QUIRK(0x1458, 0xa002, "Gigabyte GA-7VAXP", VIA_DXS_ENABLE),
2378 SND_PCI_QUIRK(0x1462, 0x3800, "MSI KT266", VIA_DXS_ENABLE),
2379 SND_PCI_QUIRK(0x1462, 0x7120, "MSI KT4V", VIA_DXS_ENABLE),
2380 SND_PCI_QUIRK(0x1462, 0x7142, "MSI K8MM-V", VIA_DXS_ENABLE),
a85165c6 2381 SND_PCI_QUIRK_VENDOR(0x1462, "MSI Mobo", VIA_DXS_SRC),
9d74958a
TI		 2382 SND_PCI_QUIRK(0x147b, 0x1401, "ABIT KD7(-RAID)", VIA_DXS_ENABLE),
2383 SND_PCI_QUIRK(0x147b, 0x1411, "ABIT VA-20", VIA_DXS_ENABLE),
2384 SND_PCI_QUIRK(0x147b, 0x1413, "ABIT KV8 Pro", VIA_DXS_ENABLE),
2385 SND_PCI_QUIRK(0x147b, 0x1415, "ABIT AV8", VIA_DXS_NO_VRA),
2386 SND_PCI_QUIRK(0x14ff, 0x0403, "Twinhead mobo", VIA_DXS_ENABLE),
2387 SND_PCI_QUIRK(0x14ff, 0x0408, "Twinhead laptop", VIA_DXS_SRC),
2388 SND_PCI_QUIRK(0x1558, 0x4701, "Clevo D470", VIA_DXS_SRC),
2389 SND_PCI_QUIRK(0x1584, 0x8120, "Diverse Laptop", VIA_DXS_ENABLE),
2390 SND_PCI_QUIRK(0x1584, 0x8123, "Targa/Uniwill", VIA_DXS_NO_VRA),
2391 SND_PCI_QUIRK(0x161f, 0x202b, "Amira Notebook", VIA_DXS_NO_VRA),
2392 SND_PCI_QUIRK(0x161f, 0x2032, "m680x machines", VIA_DXS_48K),
2393 SND_PCI_QUIRK(0x1631, 0xe004, "PB EasyNote 3174", VIA_DXS_ENABLE),
2394 SND_PCI_QUIRK(0x1695, 0x3005, "EPoX EP-8K9A", VIA_DXS_ENABLE),
a85165c6
TI		 2395 SND_PCI_QUIRK_VENDOR(0x1695, "EPoX mobo", VIA_DXS_SRC),
2396 SND_PCI_QUIRK_VENDOR(0x16f3, "Jetway K8", VIA_DXS_SRC),
2397 SND_PCI_QUIRK_VENDOR(0x1734, "FSC Laptop", VIA_DXS_SRC),
9d74958a 2398 SND_PCI_QUIRK(0x1849, 0x3059, "ASRock K7VM2", VIA_DXS_NO_VRA),
a85165c6 2399 SND_PCI_QUIRK_VENDOR(0x1849, "ASRock mobo", VIA_DXS_SRC),
9d74958a
TI		 2400 SND_PCI_QUIRK(0x1919, 0x200a, "Soltek SL-K8", VIA_DXS_NO_VRA),
2401 SND_PCI_QUIRK(0x4005, 0x4710, "MSI K7T266", VIA_DXS_SRC),
2402 { } /* terminator */
1da177e4
LT		 2403};
2404
a769577b 2405static int __devinit check_dxs_list(struct pci_dev *pci, int revision)
1da177e4 2406{
9d74958a 2407 const struct snd_pci_quirk *w;
1da177e4 2408
9d74958a
TI		 2409 w = snd_pci_quirk_lookup(pci, dxs_whitelist);
2410 if (w) {
2411 snd_printdd(KERN_INFO "via82xx: DXS white list for %s found\n",
2412 w->name);
2413 return w->value;
1da177e4
LT		 2414 }
2415
a769577b
TI		 2416 /* for newer revision, default to DXS_SRC */
2417 if (revision >= VIA_REV_8235)
2418 return VIA_DXS_SRC;
2419
1da177e4
LT		 2420 /*
2421 * not detected, try 48k rate only to be sure.
2422 */
2423 printk(KERN_INFO "via82xx: Assuming DXS channels with 48k fixed sample rate.\n");
ee3b4c60 2424 printk(KERN_INFO " Please try dxs_support=5 option\n");
1da177e4 2425 printk(KERN_INFO " and report if it works on your machine.\n");
ee3b4c60 2426 printk(KERN_INFO " For more details, read ALSA-Configuration.txt.\n");
1da177e4
LT		 2427 return VIA_DXS_48K;
2428};
2429
2430static int __devinit snd_via82xx_probe(struct pci_dev *pci,
2431 const struct pci_device_id *pci_id)
2432{
e437e3d7
TI		 2433 struct snd_card *card;
2434 struct via82xx *chip;
1da177e4
LT		 2435 int chip_type = 0, card_type;
2436 unsigned int i;
2437 int err;
2438
e58de7ba
TI		 2439 err = snd_card_create(index, id, THIS_MODULE, 0, &card);
2440 if (err < 0)
2441 return err;
1da177e4
LT		 2442
2443 card_type = pci_id->driver_data;
1da177e4
LT		 2444 switch (card_type) {
2445 case TYPE_CARD_VIA686:
2446 strcpy(card->driver, "VIA686A");
44c10138 2447 sprintf(card->shortname, "VIA 82C686A/B rev%x", pci->revision);
1da177e4
LT		 2448 chip_type = TYPE_VIA686;
2449 break;
2450 case TYPE_CARD_VIA8233:
2451 chip_type = TYPE_VIA8233;
44c10138 2452 sprintf(card->shortname, "VIA 823x rev%x", pci->revision);
1da177e4 2453 for (i = 0; i < ARRAY_SIZE(via823x_cards); i++) {
44c10138 2454 if (pci->revision == via823x_cards[i].revision) {
1da177e4
LT		 2455 chip_type = via823x_cards[i].type;
2456 strcpy(card->shortname, via823x_cards[i].name);
2457 break;
2458 }
2459 }
2460 if (chip_type != TYPE_VIA8233A) {
b7fe4622 2461 if (dxs_support == VIA_DXS_AUTO)
44c10138 2462 dxs_support = check_dxs_list(pci, pci->revision);
1da177e4
LT		 2463 /* force to use VIA8233 or 8233A model according to
2464 * dxs_support module option
2465 */
b7fe4622 2466 if (dxs_support == VIA_DXS_DISABLE)
1da177e4
LT		 2467 chip_type = TYPE_VIA8233A;
2468 else
2469 chip_type = TYPE_VIA8233;
2470 }
2471 if (chip_type == TYPE_VIA8233A)
2472 strcpy(card->driver, "VIA8233A");
44c10138 2473 else if (pci->revision >= VIA_REV_8237)
1da177e4
LT		 2474 strcpy(card->driver, "VIA8237"); /* no slog assignment */
2475 else
2476 strcpy(card->driver, "VIA8233");
2477 break;
2478 default:
2479 snd_printk(KERN_ERR "invalid card type %d\n", card_type);
2480 err = -EINVAL;
2481 goto __error;
2482 }
2483
44c10138 2484 if ((err = snd_via82xx_create(card, pci, chip_type, pci->revision,
b7fe4622 2485 ac97_clock, &chip)) < 0)
1da177e4 2486 goto __error;
57feb835 2487 card->private_data = chip;
b7fe4622 2488 if ((err = snd_via82xx_mixer_new(chip, ac97_quirk)) < 0)
1da177e4
LT		 2489 goto __error;
2490
2491 if (chip_type == TYPE_VIA686) {
2492 if ((err = snd_via686_pcm_new(chip)) < 0 ||
b7fe4622 2493 (err = snd_via686_init_misc(chip)) < 0)
1da177e4
LT		 2494 goto __error;
2495 } else {
2496 if (chip_type == TYPE_VIA8233A) {
2497 if ((err = snd_via8233a_pcm_new(chip)) < 0)
2498 goto __error;
2499 // chip->dxs_fixed = 1; /* FIXME: use 48k for DXS #3? */
2500 } else {
2501 if ((err = snd_via8233_pcm_new(chip)) < 0)
2502 goto __error;
b7fe4622 2503 if (dxs_support == VIA_DXS_48K)
1da177e4 2504 chip->dxs_fixed = 1;
b7fe4622 2505 else if (dxs_support == VIA_DXS_NO_VRA)
1da177e4 2506 chip->no_vra = 1;
b7fe4622 2507 else if (dxs_support == VIA_DXS_SRC) {
2d7eb7cb
SV		 2508 chip->no_vra = 1;
2509 chip->dxs_src = 1;
2510 }
1da177e4 2511 }
b7fe4622 2512 if ((err = snd_via8233_init_misc(chip)) < 0)
1da177e4
LT		 2513 goto __error;
2514 }
2515
1da177e4
LT		 2516 /* disable interrupts */
2517 for (i = 0; i < chip->num_devs; i++)
2518 snd_via82xx_channel_reset(chip, &chip->devs[i]);
2519
2520 snprintf(card->longname, sizeof(card->longname),
2521 "%s with %s at %#lx, irq %d", card->shortname,
2522 snd_ac97_get_short_name(chip->ac97), chip->port, chip->irq);
2523
2524 snd_via82xx_proc_init(chip);
2525
2526 if ((err = snd_card_register(card)) < 0) {
2527 snd_card_free(card);
2528 return err;
2529 }
2530 pci_set_drvdata(pci, card);
1da177e4
LT		 2531 return 0;
2532
2533 __error:
2534 snd_card_free(card);
2535 return err;
2536}
2537
2538static void __devexit snd_via82xx_remove(struct pci_dev *pci)
2539{
2540 snd_card_free(pci_get_drvdata(pci));
2541 pci_set_drvdata(pci, NULL);
2542}
2543
2544static struct pci_driver driver = {
2545 .name = "VIA 82xx Audio",
2546 .id_table = snd_via82xx_ids,
2547 .probe = snd_via82xx_probe,
2548 .remove = __devexit_p(snd_via82xx_remove),
57feb835
TI		 2549#ifdef CONFIG_PM
2550 .suspend = snd_via82xx_suspend,
2551 .resume = snd_via82xx_resume,
2552#endif
1da177e4
LT		 2553};
2554
2555static int __init alsa_card_via82xx_init(void)
2556{
01d25d46 2557 return pci_register_driver(&driver);
1da177e4
LT		 2558}
2559
2560static void __exit alsa_card_via82xx_exit(void)
2561{
2562 pci_unregister_driver(&driver);
2563}
2564
2565module_init(alsa_card_via82xx_init)
2566module_exit(alsa_card_via82xx_exit)
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