ALSA: HDA: Add new revision for ALC662
[linux-2.6.git] / sound / pci / via82xx.c
1 /*
2  *   ALSA driver for VIA VT82xx (South Bridge)
3  *
4  *   VT82C686A/B/C, VT8233A/C, VT8235
5  *
6  *      Copyright (c) 2000 Jaroslav Kysela <perex@perex.cz>
7  *                         Tjeerd.Mulder <Tjeerd.Mulder@fujitsu-siemens.com>
8  *                    2002 Takashi Iwai <tiwai@suse.de>
9  *
10  *   This program is free software; you can redistribute it and/or modify
11  *   it under the terms of the GNU General Public License as published by
12  *   the Free Software Foundation; either version 2 of the License, or
13  *   (at your option) any later version.
14  *
15  *   This program is distributed in the hope that it will be useful,
16  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
17  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
18  *   GNU General Public License for more details.
19  *
20  *   You should have received a copy of the GNU General Public License
21  *   along with this program; if not, write to the Free Software
22  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
23  *
24  */
25
26 /*
27  * Changes:
28  *
29  * Dec. 19, 2002        Takashi Iwai <tiwai@suse.de>
30  *      - use the DSX channels for the first pcm playback.
31  *        (on VIA8233, 8233C and 8235 only)
32  *        this will allow you play simultaneously up to 4 streams.
33  *        multi-channel playback is assigned to the second device
34  *        on these chips.
35  *      - support the secondary capture (on VIA8233/C,8235)
36  *      - SPDIF support
37  *        the DSX3 channel can be used for SPDIF output.
38  *        on VIA8233A, this channel is assigned to the second pcm
39  *        playback.
40  *        the card config of alsa-lib will assign the correct
41  *        device for applications.
42  *      - clean up the code, separate low-level initialization
43  *        routines for each chipset.
44  *
45  * Sep. 26, 2005        Karsten Wiese <annabellesgarden@yahoo.de>
46  *      - Optimize position calculation for the 823x chips. 
47  */
48
49 #include <asm/io.h>
50 #include <linux/delay.h>
51 #include <linux/interrupt.h>
52 #include <linux/init.h>
53 #include <linux/pci.h>
54 #include <linux/slab.h>
55 #include <linux/gameport.h>
56 #include <linux/moduleparam.h>
57 #include <sound/core.h>
58 #include <sound/pcm.h>
59 #include <sound/pcm_params.h>
60 #include <sound/info.h>
61 #include <sound/tlv.h>
62 #include <sound/ac97_codec.h>
63 #include <sound/mpu401.h>
64 #include <sound/initval.h>
65
66 #if 0
67 #define POINTER_DEBUG
68 #endif
69
70 MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
71 MODULE_DESCRIPTION("VIA VT82xx audio");
72 MODULE_LICENSE("GPL");
73 MODULE_SUPPORTED_DEVICE("{{VIA,VT82C686A/B/C,pci},{VIA,VT8233A/C,8235}}");
74
75 #if defined(CONFIG_GAMEPORT) || (defined(MODULE) && defined(CONFIG_GAMEPORT_MODULE))
76 #define SUPPORT_JOYSTICK 1
77 #endif
78
79 static int index = SNDRV_DEFAULT_IDX1;  /* Index 0-MAX */
80 static char *id = SNDRV_DEFAULT_STR1;   /* ID for this card */
81 static long mpu_port;
82 #ifdef SUPPORT_JOYSTICK
83 static int joystick;
84 #endif
85 static int ac97_clock = 48000;
86 static char *ac97_quirk;
87 static int dxs_support;
88 static int dxs_init_volume = 31;
89 static int nodelay;
90
91 module_param(index, int, 0444);
92 MODULE_PARM_DESC(index, "Index value for VIA 82xx bridge.");
93 module_param(id, charp, 0444);
94 MODULE_PARM_DESC(id, "ID string for VIA 82xx bridge.");
95 module_param(mpu_port, long, 0444);
96 MODULE_PARM_DESC(mpu_port, "MPU-401 port. (VT82C686x only)");
97 #ifdef SUPPORT_JOYSTICK
98 module_param(joystick, bool, 0444);
99 MODULE_PARM_DESC(joystick, "Enable joystick. (VT82C686x only)");
100 #endif
101 module_param(ac97_clock, int, 0444);
102 MODULE_PARM_DESC(ac97_clock, "AC'97 codec clock (default 48000Hz).");
103 module_param(ac97_quirk, charp, 0444);
104 MODULE_PARM_DESC(ac97_quirk, "AC'97 workaround for strange hardware.");
105 module_param(dxs_support, int, 0444);
106 MODULE_PARM_DESC(dxs_support, "Support for DXS channels (0 = auto, 1 = enable, 2 = disable, 3 = 48k only, 4 = no VRA, 5 = enable any sample rate)");
107 module_param(dxs_init_volume, int, 0644);
108 MODULE_PARM_DESC(dxs_init_volume, "initial DXS volume (0-31)");
109 module_param(nodelay, int, 0444);
110 MODULE_PARM_DESC(nodelay, "Disable 500ms init delay");
111
112 /* just for backward compatibility */
113 static int enable;
114 module_param(enable, bool, 0444);
115
116
117 /* revision numbers for via686 */
118 #define VIA_REV_686_A           0x10
119 #define VIA_REV_686_B           0x11
120 #define VIA_REV_686_C           0x12
121 #define VIA_REV_686_D           0x13
122 #define VIA_REV_686_E           0x14
123 #define VIA_REV_686_H           0x20
124
125 /* revision numbers for via8233 */
126 #define VIA_REV_PRE_8233        0x10    /* not in market */
127 #define VIA_REV_8233C           0x20    /* 2 rec, 4 pb, 1 multi-pb */
128 #define VIA_REV_8233            0x30    /* 2 rec, 4 pb, 1 multi-pb, spdif */
129 #define VIA_REV_8233A           0x40    /* 1 rec, 1 multi-pb, spdf */
130 #define VIA_REV_8235            0x50    /* 2 rec, 4 pb, 1 multi-pb, spdif */
131 #define VIA_REV_8237            0x60
132 #define VIA_REV_8251            0x70
133
134 /*
135  *  Direct registers
136  */
137
138 #define VIAREG(via, x) ((via)->port + VIA_REG_##x)
139 #define VIADEV_REG(viadev, x) ((viadev)->port + VIA_REG_##x)
140
141 /* common offsets */
142 #define VIA_REG_OFFSET_STATUS           0x00    /* byte - channel status */
143 #define   VIA_REG_STAT_ACTIVE           0x80    /* RO */
144 #define   VIA8233_SHADOW_STAT_ACTIVE    0x08    /* RO */
145 #define   VIA_REG_STAT_PAUSED           0x40    /* RO */
146 #define   VIA_REG_STAT_TRIGGER_QUEUED   0x08    /* RO */
147 #define   VIA_REG_STAT_STOPPED          0x04    /* RWC */
148 #define   VIA_REG_STAT_EOL              0x02    /* RWC */
149 #define   VIA_REG_STAT_FLAG             0x01    /* RWC */
150 #define VIA_REG_OFFSET_CONTROL          0x01    /* byte - channel control */
151 #define   VIA_REG_CTRL_START            0x80    /* WO */
152 #define   VIA_REG_CTRL_TERMINATE        0x40    /* WO */
153 #define   VIA_REG_CTRL_AUTOSTART        0x20
154 #define   VIA_REG_CTRL_PAUSE            0x08    /* RW */
155 #define   VIA_REG_CTRL_INT_STOP         0x04            
156 #define   VIA_REG_CTRL_INT_EOL          0x02
157 #define   VIA_REG_CTRL_INT_FLAG         0x01
158 #define   VIA_REG_CTRL_RESET            0x01    /* RW - probably reset? undocumented */
159 #define   VIA_REG_CTRL_INT (VIA_REG_CTRL_INT_FLAG | VIA_REG_CTRL_INT_EOL | VIA_REG_CTRL_AUTOSTART)
160 #define VIA_REG_OFFSET_TYPE             0x02    /* byte - channel type (686 only) */
161 #define   VIA_REG_TYPE_AUTOSTART        0x80    /* RW - autostart at EOL */
162 #define   VIA_REG_TYPE_16BIT            0x20    /* RW */
163 #define   VIA_REG_TYPE_STEREO           0x10    /* RW */
164 #define   VIA_REG_TYPE_INT_LLINE        0x00
165 #define   VIA_REG_TYPE_INT_LSAMPLE      0x04
166 #define   VIA_REG_TYPE_INT_LESSONE      0x08
167 #define   VIA_REG_TYPE_INT_MASK         0x0c
168 #define   VIA_REG_TYPE_INT_EOL          0x02
169 #define   VIA_REG_TYPE_INT_FLAG         0x01
170 #define VIA_REG_OFFSET_TABLE_PTR        0x04    /* dword - channel table pointer */
171 #define VIA_REG_OFFSET_CURR_PTR         0x04    /* dword - channel current pointer */
172 #define VIA_REG_OFFSET_STOP_IDX         0x08    /* dword - stop index, channel type, sample rate */
173 #define   VIA8233_REG_TYPE_16BIT        0x00200000      /* RW */
174 #define   VIA8233_REG_TYPE_STEREO       0x00100000      /* RW */
175 #define VIA_REG_OFFSET_CURR_COUNT       0x0c    /* dword - channel current count (24 bit) */
176 #define VIA_REG_OFFSET_CURR_INDEX       0x0f    /* byte - channel current index (for via8233 only) */
177
178 #define DEFINE_VIA_REGSET(name,val) \
179 enum {\
180         VIA_REG_##name##_STATUS         = (val),\
181         VIA_REG_##name##_CONTROL        = (val) + 0x01,\
182         VIA_REG_##name##_TYPE           = (val) + 0x02,\
183         VIA_REG_##name##_TABLE_PTR      = (val) + 0x04,\
184         VIA_REG_##name##_CURR_PTR       = (val) + 0x04,\
185         VIA_REG_##name##_STOP_IDX       = (val) + 0x08,\
186         VIA_REG_##name##_CURR_COUNT     = (val) + 0x0c,\
187 }
188
189 /* playback block */
190 DEFINE_VIA_REGSET(PLAYBACK, 0x00);
191 DEFINE_VIA_REGSET(CAPTURE, 0x10);
192 DEFINE_VIA_REGSET(FM, 0x20);
193
194 /* AC'97 */
195 #define VIA_REG_AC97                    0x80    /* dword */
196 #define   VIA_REG_AC97_CODEC_ID_MASK    (3<<30)
197 #define   VIA_REG_AC97_CODEC_ID_SHIFT   30
198 #define   VIA_REG_AC97_CODEC_ID_PRIMARY 0x00
199 #define   VIA_REG_AC97_CODEC_ID_SECONDARY 0x01
200 #define   VIA_REG_AC97_SECONDARY_VALID  (1<<27)
201 #define   VIA_REG_AC97_PRIMARY_VALID    (1<<25)
202 #define   VIA_REG_AC97_BUSY             (1<<24)
203 #define   VIA_REG_AC97_READ             (1<<23)
204 #define   VIA_REG_AC97_CMD_SHIFT        16
205 #define   VIA_REG_AC97_CMD_MASK         0x7e
206 #define   VIA_REG_AC97_DATA_SHIFT       0
207 #define   VIA_REG_AC97_DATA_MASK        0xffff
208
209 #define VIA_REG_SGD_SHADOW              0x84    /* dword */
210 /* via686 */
211 #define   VIA_REG_SGD_STAT_PB_FLAG      (1<<0)
212 #define   VIA_REG_SGD_STAT_CP_FLAG      (1<<1)
213 #define   VIA_REG_SGD_STAT_FM_FLAG      (1<<2)
214 #define   VIA_REG_SGD_STAT_PB_EOL       (1<<4)
215 #define   VIA_REG_SGD_STAT_CP_EOL       (1<<5)
216 #define   VIA_REG_SGD_STAT_FM_EOL       (1<<6)
217 #define   VIA_REG_SGD_STAT_PB_STOP      (1<<8)
218 #define   VIA_REG_SGD_STAT_CP_STOP      (1<<9)
219 #define   VIA_REG_SGD_STAT_FM_STOP      (1<<10)
220 #define   VIA_REG_SGD_STAT_PB_ACTIVE    (1<<12)
221 #define   VIA_REG_SGD_STAT_CP_ACTIVE    (1<<13)
222 #define   VIA_REG_SGD_STAT_FM_ACTIVE    (1<<14)
223 /* via8233 */
224 #define   VIA8233_REG_SGD_STAT_FLAG     (1<<0)
225 #define   VIA8233_REG_SGD_STAT_EOL      (1<<1)
226 #define   VIA8233_REG_SGD_STAT_STOP     (1<<2)
227 #define   VIA8233_REG_SGD_STAT_ACTIVE   (1<<3)
228 #define VIA8233_INTR_MASK(chan) ((VIA8233_REG_SGD_STAT_FLAG|VIA8233_REG_SGD_STAT_EOL) << ((chan) * 4))
229 #define   VIA8233_REG_SGD_CHAN_SDX      0
230 #define   VIA8233_REG_SGD_CHAN_MULTI    4
231 #define   VIA8233_REG_SGD_CHAN_REC      6
232 #define   VIA8233_REG_SGD_CHAN_REC1     7
233
234 #define VIA_REG_GPI_STATUS              0x88
235 #define VIA_REG_GPI_INTR                0x8c
236
237 /* multi-channel and capture registers for via8233 */
238 DEFINE_VIA_REGSET(MULTPLAY, 0x40);
239 DEFINE_VIA_REGSET(CAPTURE_8233, 0x60);
240
241 /* via8233-specific registers */
242 #define VIA_REG_OFS_PLAYBACK_VOLUME_L   0x02    /* byte */
243 #define VIA_REG_OFS_PLAYBACK_VOLUME_R   0x03    /* byte */
244 #define VIA_REG_OFS_MULTPLAY_FORMAT     0x02    /* byte - format and channels */
245 #define   VIA_REG_MULTPLAY_FMT_8BIT     0x00
246 #define   VIA_REG_MULTPLAY_FMT_16BIT    0x80
247 #define   VIA_REG_MULTPLAY_FMT_CH_MASK  0x70    /* # channels << 4 (valid = 1,2,4,6) */
248 #define VIA_REG_OFS_CAPTURE_FIFO        0x02    /* byte - bit 6 = fifo  enable */
249 #define   VIA_REG_CAPTURE_FIFO_ENABLE   0x40
250
251 #define VIA_DXS_MAX_VOLUME              31      /* max. volume (attenuation) of reg 0x32/33 */
252
253 #define VIA_REG_CAPTURE_CHANNEL         0x63    /* byte - input select */
254 #define   VIA_REG_CAPTURE_CHANNEL_MIC   0x4
255 #define   VIA_REG_CAPTURE_CHANNEL_LINE  0
256 #define   VIA_REG_CAPTURE_SELECT_CODEC  0x03    /* recording source codec (0 = primary) */
257
258 #define VIA_TBL_BIT_FLAG        0x40000000
259 #define VIA_TBL_BIT_EOL         0x80000000
260
261 /* pci space */
262 #define VIA_ACLINK_STAT         0x40
263 #define  VIA_ACLINK_C11_READY   0x20
264 #define  VIA_ACLINK_C10_READY   0x10
265 #define  VIA_ACLINK_C01_READY   0x04 /* secondary codec ready */
266 #define  VIA_ACLINK_LOWPOWER    0x02 /* low-power state */
267 #define  VIA_ACLINK_C00_READY   0x01 /* primary codec ready */
268 #define VIA_ACLINK_CTRL         0x41
269 #define  VIA_ACLINK_CTRL_ENABLE 0x80 /* 0: disable, 1: enable */
270 #define  VIA_ACLINK_CTRL_RESET  0x40 /* 0: assert, 1: de-assert */
271 #define  VIA_ACLINK_CTRL_SYNC   0x20 /* 0: release SYNC, 1: force SYNC hi */
272 #define  VIA_ACLINK_CTRL_SDO    0x10 /* 0: release SDO, 1: force SDO hi */
273 #define  VIA_ACLINK_CTRL_VRA    0x08 /* 0: disable VRA, 1: enable VRA */
274 #define  VIA_ACLINK_CTRL_PCM    0x04 /* 0: disable PCM, 1: enable PCM */
275 #define  VIA_ACLINK_CTRL_FM     0x02 /* via686 only */
276 #define  VIA_ACLINK_CTRL_SB     0x01 /* via686 only */
277 #define  VIA_ACLINK_CTRL_INIT   (VIA_ACLINK_CTRL_ENABLE|\
278                                  VIA_ACLINK_CTRL_RESET|\
279                                  VIA_ACLINK_CTRL_PCM|\
280                                  VIA_ACLINK_CTRL_VRA)
281 #define VIA_FUNC_ENABLE         0x42
282 #define  VIA_FUNC_MIDI_PNP      0x80 /* FIXME: it's 0x40 in the datasheet! */
283 #define  VIA_FUNC_MIDI_IRQMASK  0x40 /* FIXME: not documented! */
284 #define  VIA_FUNC_RX2C_WRITE    0x20
285 #define  VIA_FUNC_SB_FIFO_EMPTY 0x10
286 #define  VIA_FUNC_ENABLE_GAME   0x08
287 #define  VIA_FUNC_ENABLE_FM     0x04
288 #define  VIA_FUNC_ENABLE_MIDI   0x02
289 #define  VIA_FUNC_ENABLE_SB     0x01
290 #define VIA_PNP_CONTROL         0x43
291 #define VIA_FM_NMI_CTRL         0x48
292 #define VIA8233_VOLCHG_CTRL     0x48
293 #define VIA8233_SPDIF_CTRL      0x49
294 #define  VIA8233_SPDIF_DX3      0x08
295 #define  VIA8233_SPDIF_SLOT_MASK        0x03
296 #define  VIA8233_SPDIF_SLOT_1011        0x00
297 #define  VIA8233_SPDIF_SLOT_34          0x01
298 #define  VIA8233_SPDIF_SLOT_78          0x02
299 #define  VIA8233_SPDIF_SLOT_69          0x03
300
301 /*
302  */
303
304 #define VIA_DXS_AUTO    0
305 #define VIA_DXS_ENABLE  1
306 #define VIA_DXS_DISABLE 2
307 #define VIA_DXS_48K     3
308 #define VIA_DXS_NO_VRA  4
309 #define VIA_DXS_SRC     5
310
311
312 /*
313  * pcm stream
314  */
315
316 struct snd_via_sg_table {
317         unsigned int offset;
318         unsigned int size;
319 } ;
320
321 #define VIA_TABLE_SIZE  255
322 #define VIA_MAX_BUFSIZE (1<<24)
323
324 struct viadev {
325         unsigned int reg_offset;
326         unsigned long port;
327         int direction;  /* playback = 0, capture = 1 */
328         struct snd_pcm_substream *substream;
329         int running;
330         unsigned int tbl_entries; /* # descriptors */
331         struct snd_dma_buffer table;
332         struct snd_via_sg_table *idx_table;
333         /* for recovery from the unexpected pointer */
334         unsigned int lastpos;
335         unsigned int fragsize;
336         unsigned int bufsize;
337         unsigned int bufsize2;
338         int hwptr_done;         /* processed frame position in the buffer */
339         int in_interrupt;
340         int shadow_shift;
341 };
342
343
344 enum { TYPE_CARD_VIA686 = 1, TYPE_CARD_VIA8233 };
345 enum { TYPE_VIA686, TYPE_VIA8233, TYPE_VIA8233A };
346
347 #define VIA_MAX_DEVS    7       /* 4 playback, 1 multi, 2 capture */
348
349 struct via_rate_lock {
350         spinlock_t lock;
351         int rate;
352         int used;
353 };
354
355 struct via82xx {
356         int irq;
357
358         unsigned long port;
359         struct resource *mpu_res;
360         int chip_type;
361         unsigned char revision;
362
363         unsigned char old_legacy;
364         unsigned char old_legacy_cfg;
365 #ifdef CONFIG_PM
366         unsigned char legacy_saved;
367         unsigned char legacy_cfg_saved;
368         unsigned char spdif_ctrl_saved;
369         unsigned char capture_src_saved[2];
370         unsigned int mpu_port_saved;
371 #endif
372
373         unsigned char playback_volume[4][2]; /* for VIA8233/C/8235; default = 0 */
374         unsigned char playback_volume_c[2]; /* for VIA8233/C/8235; default = 0 */
375
376         unsigned int intr_mask; /* SGD_SHADOW mask to check interrupts */
377
378         struct pci_dev *pci;
379         struct snd_card *card;
380
381         unsigned int num_devs;
382         unsigned int playback_devno, multi_devno, capture_devno;
383         struct viadev devs[VIA_MAX_DEVS];
384         struct via_rate_lock rates[2]; /* playback and capture */
385         unsigned int dxs_fixed: 1;      /* DXS channel accepts only 48kHz */
386         unsigned int no_vra: 1;         /* no need to set VRA on DXS channels */
387         unsigned int dxs_src: 1;        /* use full SRC capabilities of DXS */
388         unsigned int spdif_on: 1;       /* only spdif rates work to external DACs */
389
390         struct snd_pcm *pcms[2];
391         struct snd_rawmidi *rmidi;
392         struct snd_kcontrol *dxs_controls[4];
393
394         struct snd_ac97_bus *ac97_bus;
395         struct snd_ac97 *ac97;
396         unsigned int ac97_clock;
397         unsigned int ac97_secondary;    /* secondary AC'97 codec is present */
398
399         spinlock_t reg_lock;
400         struct snd_info_entry *proc_entry;
401
402 #ifdef SUPPORT_JOYSTICK
403         struct gameport *gameport;
404 #endif
405 };
406
407 static DEFINE_PCI_DEVICE_TABLE(snd_via82xx_ids) = {
408         /* 0x1106, 0x3058 */
409         { PCI_VDEVICE(VIA, PCI_DEVICE_ID_VIA_82C686_5), TYPE_CARD_VIA686, },    /* 686A */
410         /* 0x1106, 0x3059 */
411         { PCI_VDEVICE(VIA, PCI_DEVICE_ID_VIA_8233_5), TYPE_CARD_VIA8233, },     /* VT8233 */
412         { 0, }
413 };
414
415 MODULE_DEVICE_TABLE(pci, snd_via82xx_ids);
416
417 /*
418  */
419
420 /*
421  * allocate and initialize the descriptor buffers
422  * periods = number of periods
423  * fragsize = period size in bytes
424  */
425 static int build_via_table(struct viadev *dev, struct snd_pcm_substream *substream,
426                            struct pci_dev *pci,
427                            unsigned int periods, unsigned int fragsize)
428 {
429         unsigned int i, idx, ofs, rest;
430         struct via82xx *chip = snd_pcm_substream_chip(substream);
431
432         if (dev->table.area == NULL) {
433                 /* the start of each lists must be aligned to 8 bytes,
434                  * but the kernel pages are much bigger, so we don't care
435                  */
436                 if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(chip->pci),
437                                         PAGE_ALIGN(VIA_TABLE_SIZE * 2 * 8),
438                                         &dev->table) < 0)
439                         return -ENOMEM;
440         }
441         if (! dev->idx_table) {
442                 dev->idx_table = kmalloc(sizeof(*dev->idx_table) * VIA_TABLE_SIZE, GFP_KERNEL);
443                 if (! dev->idx_table)
444                         return -ENOMEM;
445         }
446
447         /* fill the entries */
448         idx = 0;
449         ofs = 0;
450         for (i = 0; i < periods; i++) {
451                 rest = fragsize;
452                 /* fill descriptors for a period.
453                  * a period can be split to several descriptors if it's
454                  * over page boundary.
455                  */
456                 do {
457                         unsigned int r;
458                         unsigned int flag;
459                         unsigned int addr;
460
461                         if (idx >= VIA_TABLE_SIZE) {
462                                 snd_printk(KERN_ERR "via82xx: too much table size!\n");
463                                 return -EINVAL;
464                         }
465                         addr = snd_pcm_sgbuf_get_addr(substream, ofs);
466                         ((u32 *)dev->table.area)[idx << 1] = cpu_to_le32(addr);
467                         r = snd_pcm_sgbuf_get_chunk_size(substream, ofs, rest);
468                         rest -= r;
469                         if (! rest) {
470                                 if (i == periods - 1)
471                                         flag = VIA_TBL_BIT_EOL; /* buffer boundary */
472                                 else
473                                         flag = VIA_TBL_BIT_FLAG; /* period boundary */
474                         } else
475                                 flag = 0; /* period continues to the next */
476                         /*
477                         printk(KERN_DEBUG "via: tbl %d: at %d  size %d "
478                                "(rest %d)\n", idx, ofs, r, rest);
479                         */
480                         ((u32 *)dev->table.area)[(idx<<1) + 1] = cpu_to_le32(r | flag);
481                         dev->idx_table[idx].offset = ofs;
482                         dev->idx_table[idx].size = r;
483                         ofs += r;
484                         idx++;
485                 } while (rest > 0);
486         }
487         dev->tbl_entries = idx;
488         dev->bufsize = periods * fragsize;
489         dev->bufsize2 = dev->bufsize / 2;
490         dev->fragsize = fragsize;
491         return 0;
492 }
493
494
495 static int clean_via_table(struct viadev *dev, struct snd_pcm_substream *substream,
496                            struct pci_dev *pci)
497 {
498         if (dev->table.area) {
499                 snd_dma_free_pages(&dev->table);
500                 dev->table.area = NULL;
501         }
502         kfree(dev->idx_table);
503         dev->idx_table = NULL;
504         return 0;
505 }
506
507 /*
508  *  Basic I/O
509  */
510
511 static inline unsigned int snd_via82xx_codec_xread(struct via82xx *chip)
512 {
513         return inl(VIAREG(chip, AC97));
514 }
515  
516 static inline void snd_via82xx_codec_xwrite(struct via82xx *chip, unsigned int val)
517 {
518         outl(val, VIAREG(chip, AC97));
519 }
520  
521 static int snd_via82xx_codec_ready(struct via82xx *chip, int secondary)
522 {
523         unsigned int timeout = 1000;    /* 1ms */
524         unsigned int val;
525         
526         while (timeout-- > 0) {
527                 udelay(1);
528                 if (!((val = snd_via82xx_codec_xread(chip)) & VIA_REG_AC97_BUSY))
529                         return val & 0xffff;
530         }
531         snd_printk(KERN_ERR "codec_ready: codec %i is not ready [0x%x]\n",
532                    secondary, snd_via82xx_codec_xread(chip));
533         return -EIO;
534 }
535  
536 static int snd_via82xx_codec_valid(struct via82xx *chip, int secondary)
537 {
538         unsigned int timeout = 1000;    /* 1ms */
539         unsigned int val, val1;
540         unsigned int stat = !secondary ? VIA_REG_AC97_PRIMARY_VALID :
541                                          VIA_REG_AC97_SECONDARY_VALID;
542         
543         while (timeout-- > 0) {
544                 val = snd_via82xx_codec_xread(chip);
545                 val1 = val & (VIA_REG_AC97_BUSY | stat);
546                 if (val1 == stat)
547                         return val & 0xffff;
548                 udelay(1);
549         }
550         return -EIO;
551 }
552  
553 static void snd_via82xx_codec_wait(struct snd_ac97 *ac97)
554 {
555         struct via82xx *chip = ac97->private_data;
556         int err;
557         err = snd_via82xx_codec_ready(chip, ac97->num);
558         /* here we need to wait fairly for long time.. */
559         if (!nodelay)
560                 msleep(500);
561 }
562
563 static void snd_via82xx_codec_write(struct snd_ac97 *ac97,
564                                     unsigned short reg,
565                                     unsigned short val)
566 {
567         struct via82xx *chip = ac97->private_data;
568         unsigned int xval;
569
570         xval = !ac97->num ? VIA_REG_AC97_CODEC_ID_PRIMARY : VIA_REG_AC97_CODEC_ID_SECONDARY;
571         xval <<= VIA_REG_AC97_CODEC_ID_SHIFT;
572         xval |= reg << VIA_REG_AC97_CMD_SHIFT;
573         xval |= val << VIA_REG_AC97_DATA_SHIFT;
574         snd_via82xx_codec_xwrite(chip, xval);
575         snd_via82xx_codec_ready(chip, ac97->num);
576 }
577
578 static unsigned short snd_via82xx_codec_read(struct snd_ac97 *ac97, unsigned short reg)
579 {
580         struct via82xx *chip = ac97->private_data;
581         unsigned int xval, val = 0xffff;
582         int again = 0;
583
584         xval = ac97->num << VIA_REG_AC97_CODEC_ID_SHIFT;
585         xval |= ac97->num ? VIA_REG_AC97_SECONDARY_VALID : VIA_REG_AC97_PRIMARY_VALID;
586         xval |= VIA_REG_AC97_READ;
587         xval |= (reg & 0x7f) << VIA_REG_AC97_CMD_SHIFT;
588         while (1) {
589                 if (again++ > 3) {
590                         snd_printk(KERN_ERR "codec_read: codec %i is not valid [0x%x]\n",
591                                    ac97->num, snd_via82xx_codec_xread(chip));
592                         return 0xffff;
593                 }
594                 snd_via82xx_codec_xwrite(chip, xval);
595                 udelay (20);
596                 if (snd_via82xx_codec_valid(chip, ac97->num) >= 0) {
597                         udelay(25);
598                         val = snd_via82xx_codec_xread(chip);
599                         break;
600                 }
601         }
602         return val & 0xffff;
603 }
604
605 static void snd_via82xx_channel_reset(struct via82xx *chip, struct viadev *viadev)
606 {
607         outb(VIA_REG_CTRL_PAUSE | VIA_REG_CTRL_TERMINATE | VIA_REG_CTRL_RESET,
608              VIADEV_REG(viadev, OFFSET_CONTROL));
609         inb(VIADEV_REG(viadev, OFFSET_CONTROL));
610         udelay(50);
611         /* disable interrupts */
612         outb(0x00, VIADEV_REG(viadev, OFFSET_CONTROL));
613         /* clear interrupts */
614         outb(0x03, VIADEV_REG(viadev, OFFSET_STATUS));
615         outb(0x00, VIADEV_REG(viadev, OFFSET_TYPE)); /* for via686 */
616         // outl(0, VIADEV_REG(viadev, OFFSET_CURR_PTR));
617         viadev->lastpos = 0;
618         viadev->hwptr_done = 0;
619 }
620
621
622 /*
623  *  Interrupt handler
624  *  Used for 686 and 8233A
625  */
626 static irqreturn_t snd_via686_interrupt(int irq, void *dev_id)
627 {
628         struct via82xx *chip = dev_id;
629         unsigned int status;
630         unsigned int i;
631
632         status = inl(VIAREG(chip, SGD_SHADOW));
633         if (! (status & chip->intr_mask)) {
634                 if (chip->rmidi)
635                         /* check mpu401 interrupt */
636                         return snd_mpu401_uart_interrupt(irq, chip->rmidi->private_data);
637                 return IRQ_NONE;
638         }
639
640         /* check status for each stream */
641         spin_lock(&chip->reg_lock);
642         for (i = 0; i < chip->num_devs; i++) {
643                 struct viadev *viadev = &chip->devs[i];
644                 unsigned char c_status = inb(VIADEV_REG(viadev, OFFSET_STATUS));
645                 if (! (c_status & (VIA_REG_STAT_EOL|VIA_REG_STAT_FLAG|VIA_REG_STAT_STOPPED)))
646                         continue;
647                 if (viadev->substream && viadev->running) {
648                         /*
649                          * Update hwptr_done based on 'period elapsed'
650                          * interrupts. We'll use it, when the chip returns 0 
651                          * for OFFSET_CURR_COUNT.
652                          */
653                         if (c_status & VIA_REG_STAT_EOL)
654                                 viadev->hwptr_done = 0;
655                         else
656                                 viadev->hwptr_done += viadev->fragsize;
657                         viadev->in_interrupt = c_status;
658                         spin_unlock(&chip->reg_lock);
659                         snd_pcm_period_elapsed(viadev->substream);
660                         spin_lock(&chip->reg_lock);
661                         viadev->in_interrupt = 0;
662                 }
663                 outb(c_status, VIADEV_REG(viadev, OFFSET_STATUS)); /* ack */
664         }
665         spin_unlock(&chip->reg_lock);
666         return IRQ_HANDLED;
667 }
668
669 /*
670  *  Interrupt handler
671  */
672 static irqreturn_t snd_via8233_interrupt(int irq, void *dev_id)
673 {
674         struct via82xx *chip = dev_id;
675         unsigned int status;
676         unsigned int i;
677         int irqreturn = 0;
678
679         /* check status for each stream */
680         spin_lock(&chip->reg_lock);
681         status = inl(VIAREG(chip, SGD_SHADOW));
682
683         for (i = 0; i < chip->num_devs; i++) {
684                 struct viadev *viadev = &chip->devs[i];
685                 struct snd_pcm_substream *substream;
686                 unsigned char c_status, shadow_status;
687
688                 shadow_status = (status >> viadev->shadow_shift) &
689                         (VIA8233_SHADOW_STAT_ACTIVE|VIA_REG_STAT_EOL|
690                          VIA_REG_STAT_FLAG);
691                 c_status = shadow_status & (VIA_REG_STAT_EOL|VIA_REG_STAT_FLAG);
692                 if (!c_status)
693                         continue;
694
695                 substream = viadev->substream;
696                 if (substream && viadev->running) {
697                         /*
698                          * Update hwptr_done based on 'period elapsed'
699                          * interrupts. We'll use it, when the chip returns 0 
700                          * for OFFSET_CURR_COUNT.
701                          */
702                         if (c_status & VIA_REG_STAT_EOL)
703                                 viadev->hwptr_done = 0;
704                         else
705                                 viadev->hwptr_done += viadev->fragsize;
706                         viadev->in_interrupt = c_status;
707                         if (shadow_status & VIA8233_SHADOW_STAT_ACTIVE)
708                                 viadev->in_interrupt |= VIA_REG_STAT_ACTIVE;
709                         spin_unlock(&chip->reg_lock);
710
711                         snd_pcm_period_elapsed(substream);
712
713                         spin_lock(&chip->reg_lock);
714                         viadev->in_interrupt = 0;
715                 }
716                 outb(c_status, VIADEV_REG(viadev, OFFSET_STATUS)); /* ack */
717                 irqreturn = 1;
718         }
719         spin_unlock(&chip->reg_lock);
720         return IRQ_RETVAL(irqreturn);
721 }
722
723 /*
724  *  PCM callbacks
725  */
726
727 /*
728  * trigger callback
729  */
730 static int snd_via82xx_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
731 {
732         struct via82xx *chip = snd_pcm_substream_chip(substream);
733         struct viadev *viadev = substream->runtime->private_data;
734         unsigned char val;
735
736         if (chip->chip_type != TYPE_VIA686)
737                 val = VIA_REG_CTRL_INT;
738         else
739                 val = 0;
740         switch (cmd) {
741         case SNDRV_PCM_TRIGGER_START:
742         case SNDRV_PCM_TRIGGER_RESUME:
743                 val |= VIA_REG_CTRL_START;
744                 viadev->running = 1;
745                 break;
746         case SNDRV_PCM_TRIGGER_STOP:
747         case SNDRV_PCM_TRIGGER_SUSPEND:
748                 val = VIA_REG_CTRL_TERMINATE;
749                 viadev->running = 0;
750                 break;
751         case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
752                 val |= VIA_REG_CTRL_PAUSE;
753                 viadev->running = 0;
754                 break;
755         case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
756                 viadev->running = 1;
757                 break;
758         default:
759                 return -EINVAL;
760         }
761         outb(val, VIADEV_REG(viadev, OFFSET_CONTROL));
762         if (cmd == SNDRV_PCM_TRIGGER_STOP)
763                 snd_via82xx_channel_reset(chip, viadev);
764         return 0;
765 }
766
767
768 /*
769  * pointer callbacks
770  */
771
772 /*
773  * calculate the linear position at the given sg-buffer index and the rest count
774  */
775
776 #define check_invalid_pos(viadev,pos) \
777         ((pos) < viadev->lastpos && ((pos) >= viadev->bufsize2 ||\
778                                      viadev->lastpos < viadev->bufsize2))
779
780 static inline unsigned int calc_linear_pos(struct viadev *viadev, unsigned int idx,
781                                            unsigned int count)
782 {
783         unsigned int size, base, res;
784
785         size = viadev->idx_table[idx].size;
786         base = viadev->idx_table[idx].offset;
787         res = base + size - count;
788         if (res >= viadev->bufsize)
789                 res -= viadev->bufsize;
790
791         /* check the validity of the calculated position */
792         if (size < count) {
793                 snd_printd(KERN_ERR "invalid via82xx_cur_ptr (size = %d, count = %d)\n",
794                            (int)size, (int)count);
795                 res = viadev->lastpos;
796         } else {
797                 if (! count) {
798                         /* Some mobos report count = 0 on the DMA boundary,
799                          * i.e. count = size indeed.
800                          * Let's check whether this step is above the expected size.
801                          */
802                         int delta = res - viadev->lastpos;
803                         if (delta < 0)
804                                 delta += viadev->bufsize;
805                         if ((unsigned int)delta > viadev->fragsize)
806                                 res = base;
807                 }
808                 if (check_invalid_pos(viadev, res)) {
809 #ifdef POINTER_DEBUG
810                         printk(KERN_DEBUG "fail: idx = %i/%i, lastpos = 0x%x, "
811                                "bufsize2 = 0x%x, offsize = 0x%x, size = 0x%x, "
812                                "count = 0x%x\n", idx, viadev->tbl_entries,
813                                viadev->lastpos, viadev->bufsize2,
814                                viadev->idx_table[idx].offset,
815                                viadev->idx_table[idx].size, count);
816 #endif
817                         /* count register returns full size when end of buffer is reached */
818                         res = base + size;
819                         if (check_invalid_pos(viadev, res)) {
820                                 snd_printd(KERN_ERR "invalid via82xx_cur_ptr (2), "
821                                            "using last valid pointer\n");
822                                 res = viadev->lastpos;
823                         }
824                 }
825         }
826         return res;
827 }
828
829 /*
830  * get the current pointer on via686
831  */
832 static snd_pcm_uframes_t snd_via686_pcm_pointer(struct snd_pcm_substream *substream)
833 {
834         struct via82xx *chip = snd_pcm_substream_chip(substream);
835         struct viadev *viadev = substream->runtime->private_data;
836         unsigned int idx, ptr, count, res;
837
838         if (snd_BUG_ON(!viadev->tbl_entries))
839                 return 0;
840         if (!(inb(VIADEV_REG(viadev, OFFSET_STATUS)) & VIA_REG_STAT_ACTIVE))
841                 return 0;
842
843         spin_lock(&chip->reg_lock);
844         count = inl(VIADEV_REG(viadev, OFFSET_CURR_COUNT)) & 0xffffff;
845         /* The via686a does not have the current index register,
846          * so we need to calculate the index from CURR_PTR.
847          */
848         ptr = inl(VIADEV_REG(viadev, OFFSET_CURR_PTR));
849         if (ptr <= (unsigned int)viadev->table.addr)
850                 idx = 0;
851         else /* CURR_PTR holds the address + 8 */
852                 idx = ((ptr - (unsigned int)viadev->table.addr) / 8 - 1) % viadev->tbl_entries;
853         res = calc_linear_pos(viadev, idx, count);
854         viadev->lastpos = res; /* remember the last position */
855         spin_unlock(&chip->reg_lock);
856
857         return bytes_to_frames(substream->runtime, res);
858 }
859
860 /*
861  * get the current pointer on via823x
862  */
863 static snd_pcm_uframes_t snd_via8233_pcm_pointer(struct snd_pcm_substream *substream)
864 {
865         struct via82xx *chip = snd_pcm_substream_chip(substream);
866         struct viadev *viadev = substream->runtime->private_data;
867         unsigned int idx, count, res;
868         int status;
869         
870         if (snd_BUG_ON(!viadev->tbl_entries))
871                 return 0;
872
873         spin_lock(&chip->reg_lock);
874         count = inl(VIADEV_REG(viadev, OFFSET_CURR_COUNT));
875         status = viadev->in_interrupt;
876         if (!status)
877                 status = inb(VIADEV_REG(viadev, OFFSET_STATUS));
878
879         /* An apparent bug in the 8251 is worked around by sending a 
880          * REG_CTRL_START. */
881         if (chip->revision == VIA_REV_8251 && (status & VIA_REG_STAT_EOL))
882                 snd_via82xx_pcm_trigger(substream, SNDRV_PCM_TRIGGER_START);
883
884         if (!(status & VIA_REG_STAT_ACTIVE)) {
885                 res = 0;
886                 goto unlock;
887         }
888         if (count & 0xffffff) {
889                 idx = count >> 24;
890                 if (idx >= viadev->tbl_entries) {
891 #ifdef POINTER_DEBUG
892                         printk(KERN_DEBUG "fail: invalid idx = %i/%i\n", idx,
893                                viadev->tbl_entries);
894 #endif
895                         res = viadev->lastpos;
896                 } else {
897                         count &= 0xffffff;
898                         res = calc_linear_pos(viadev, idx, count);
899                 }
900         } else {
901                 res = viadev->hwptr_done;
902                 if (!viadev->in_interrupt) {
903                         if (status & VIA_REG_STAT_EOL) {
904                                 res = 0;
905                         } else
906                                 if (status & VIA_REG_STAT_FLAG) {
907                                         res += viadev->fragsize;
908                                 }
909                 }
910         }                           
911 unlock:
912         viadev->lastpos = res;
913         spin_unlock(&chip->reg_lock);
914
915         return bytes_to_frames(substream->runtime, res);
916 }
917
918
919 /*
920  * hw_params callback:
921  * allocate the buffer and build up the buffer description table
922  */
923 static int snd_via82xx_hw_params(struct snd_pcm_substream *substream,
924                                  struct snd_pcm_hw_params *hw_params)
925 {
926         struct via82xx *chip = snd_pcm_substream_chip(substream);
927         struct viadev *viadev = substream->runtime->private_data;
928         int err;
929
930         err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
931         if (err < 0)
932                 return err;
933         err = build_via_table(viadev, substream, chip->pci,
934                               params_periods(hw_params),
935                               params_period_bytes(hw_params));
936         if (err < 0)
937                 return err;
938
939         return 0;
940 }
941
942 /*
943  * hw_free callback:
944  * clean up the buffer description table and release the buffer
945  */
946 static int snd_via82xx_hw_free(struct snd_pcm_substream *substream)
947 {
948         struct via82xx *chip = snd_pcm_substream_chip(substream);
949         struct viadev *viadev = substream->runtime->private_data;
950
951         clean_via_table(viadev, substream, chip->pci);
952         snd_pcm_lib_free_pages(substream);
953         return 0;
954 }
955
956
957 /*
958  * set up the table pointer
959  */
960 static void snd_via82xx_set_table_ptr(struct via82xx *chip, struct viadev *viadev)
961 {
962         snd_via82xx_codec_ready(chip, 0);
963         outl((u32)viadev->table.addr, VIADEV_REG(viadev, OFFSET_TABLE_PTR));
964         udelay(20);
965         snd_via82xx_codec_ready(chip, 0);
966 }
967
968 /*
969  * prepare callback for playback and capture on via686
970  */
971 static void via686_setup_format(struct via82xx *chip, struct viadev *viadev,
972                                 struct snd_pcm_runtime *runtime)
973 {
974         snd_via82xx_channel_reset(chip, viadev);
975         /* this must be set after channel_reset */
976         snd_via82xx_set_table_ptr(chip, viadev);
977         outb(VIA_REG_TYPE_AUTOSTART |
978              (runtime->format == SNDRV_PCM_FORMAT_S16_LE ? VIA_REG_TYPE_16BIT : 0) |
979              (runtime->channels > 1 ? VIA_REG_TYPE_STEREO : 0) |
980              ((viadev->reg_offset & 0x10) == 0 ? VIA_REG_TYPE_INT_LSAMPLE : 0) |
981              VIA_REG_TYPE_INT_EOL |
982              VIA_REG_TYPE_INT_FLAG, VIADEV_REG(viadev, OFFSET_TYPE));
983 }
984
985 static int snd_via686_playback_prepare(struct snd_pcm_substream *substream)
986 {
987         struct via82xx *chip = snd_pcm_substream_chip(substream);
988         struct viadev *viadev = substream->runtime->private_data;
989         struct snd_pcm_runtime *runtime = substream->runtime;
990
991         snd_ac97_set_rate(chip->ac97, AC97_PCM_FRONT_DAC_RATE, runtime->rate);
992         snd_ac97_set_rate(chip->ac97, AC97_SPDIF, runtime->rate);
993         via686_setup_format(chip, viadev, runtime);
994         return 0;
995 }
996
997 static int snd_via686_capture_prepare(struct snd_pcm_substream *substream)
998 {
999         struct via82xx *chip = snd_pcm_substream_chip(substream);
1000         struct viadev *viadev = substream->runtime->private_data;
1001         struct snd_pcm_runtime *runtime = substream->runtime;
1002
1003         snd_ac97_set_rate(chip->ac97, AC97_PCM_LR_ADC_RATE, runtime->rate);
1004         via686_setup_format(chip, viadev, runtime);
1005         return 0;
1006 }
1007
1008 /*
1009  * lock the current rate
1010  */
1011 static int via_lock_rate(struct via_rate_lock *rec, int rate)
1012 {
1013         int changed = 0;
1014
1015         spin_lock_irq(&rec->lock);
1016         if (rec->rate != rate) {
1017                 if (rec->rate && rec->used > 1) /* already set */
1018                         changed = -EINVAL;
1019                 else {
1020                         rec->rate = rate;
1021                         changed = 1;
1022                 }
1023         }
1024         spin_unlock_irq(&rec->lock);
1025         return changed;
1026 }
1027
1028 /*
1029  * prepare callback for DSX playback on via823x
1030  */
1031 static int snd_via8233_playback_prepare(struct snd_pcm_substream *substream)
1032 {
1033         struct via82xx *chip = snd_pcm_substream_chip(substream);
1034         struct viadev *viadev = substream->runtime->private_data;
1035         struct snd_pcm_runtime *runtime = substream->runtime;
1036         int ac97_rate = chip->dxs_src ? 48000 : runtime->rate;
1037         int rate_changed;
1038         u32 rbits;
1039
1040         if ((rate_changed = via_lock_rate(&chip->rates[0], ac97_rate)) < 0)
1041                 return rate_changed;
1042         if (rate_changed)
1043                 snd_ac97_set_rate(chip->ac97, AC97_PCM_FRONT_DAC_RATE,
1044                                   chip->no_vra ? 48000 : runtime->rate);
1045         if (chip->spdif_on && viadev->reg_offset == 0x30)
1046                 snd_ac97_set_rate(chip->ac97, AC97_SPDIF, runtime->rate);
1047
1048         if (runtime->rate == 48000)
1049                 rbits = 0xfffff;
1050         else
1051                 rbits = (0x100000 / 48000) * runtime->rate +
1052                         ((0x100000 % 48000) * runtime->rate) / 48000;
1053         snd_BUG_ON(rbits & ~0xfffff);
1054         snd_via82xx_channel_reset(chip, viadev);
1055         snd_via82xx_set_table_ptr(chip, viadev);
1056         outb(chip->playback_volume[viadev->reg_offset / 0x10][0],
1057              VIADEV_REG(viadev, OFS_PLAYBACK_VOLUME_L));
1058         outb(chip->playback_volume[viadev->reg_offset / 0x10][1],
1059              VIADEV_REG(viadev, OFS_PLAYBACK_VOLUME_R));
1060         outl((runtime->format == SNDRV_PCM_FORMAT_S16_LE ? VIA8233_REG_TYPE_16BIT : 0) | /* format */
1061              (runtime->channels > 1 ? VIA8233_REG_TYPE_STEREO : 0) | /* stereo */
1062              rbits | /* rate */
1063              0xff000000,    /* STOP index is never reached */
1064              VIADEV_REG(viadev, OFFSET_STOP_IDX));
1065         udelay(20);
1066         snd_via82xx_codec_ready(chip, 0);
1067         return 0;
1068 }
1069
1070 /*
1071  * prepare callback for multi-channel playback on via823x
1072  */
1073 static int snd_via8233_multi_prepare(struct snd_pcm_substream *substream)
1074 {
1075         struct via82xx *chip = snd_pcm_substream_chip(substream);
1076         struct viadev *viadev = substream->runtime->private_data;
1077         struct snd_pcm_runtime *runtime = substream->runtime;
1078         unsigned int slots;
1079         int fmt;
1080
1081         if (via_lock_rate(&chip->rates[0], runtime->rate) < 0)
1082                 return -EINVAL;
1083         snd_ac97_set_rate(chip->ac97, AC97_PCM_FRONT_DAC_RATE, runtime->rate);
1084         snd_ac97_set_rate(chip->ac97, AC97_PCM_SURR_DAC_RATE, runtime->rate);
1085         snd_ac97_set_rate(chip->ac97, AC97_PCM_LFE_DAC_RATE, runtime->rate);
1086         snd_ac97_set_rate(chip->ac97, AC97_SPDIF, runtime->rate);
1087         snd_via82xx_channel_reset(chip, viadev);
1088         snd_via82xx_set_table_ptr(chip, viadev);
1089
1090         fmt = (runtime->format == SNDRV_PCM_FORMAT_S16_LE) ?
1091                 VIA_REG_MULTPLAY_FMT_16BIT : VIA_REG_MULTPLAY_FMT_8BIT;
1092         fmt |= runtime->channels << 4;
1093         outb(fmt, VIADEV_REG(viadev, OFS_MULTPLAY_FORMAT));
1094 #if 0
1095         if (chip->revision == VIA_REV_8233A)
1096                 slots = 0;
1097         else
1098 #endif
1099         {
1100                 /* set sample number to slot 3, 4, 7, 8, 6, 9 (for VIA8233/C,8235) */
1101                 /* corresponding to FL, FR, RL, RR, C, LFE ?? */
1102                 switch (runtime->channels) {
1103                 case 1: slots = (1<<0) | (1<<4); break;
1104                 case 2: slots = (1<<0) | (2<<4); break;
1105                 case 3: slots = (1<<0) | (2<<4) | (5<<8); break;
1106                 case 4: slots = (1<<0) | (2<<4) | (3<<8) | (4<<12); break;
1107                 case 5: slots = (1<<0) | (2<<4) | (3<<8) | (4<<12) | (5<<16); break;
1108                 case 6: slots = (1<<0) | (2<<4) | (3<<8) | (4<<12) | (5<<16) | (6<<20); break;
1109                 default: slots = 0; break;
1110                 }
1111         }
1112         /* STOP index is never reached */
1113         outl(0xff000000 | slots, VIADEV_REG(viadev, OFFSET_STOP_IDX));
1114         udelay(20);
1115         snd_via82xx_codec_ready(chip, 0);
1116         return 0;
1117 }
1118
1119 /*
1120  * prepare callback for capture on via823x
1121  */
1122 static int snd_via8233_capture_prepare(struct snd_pcm_substream *substream)
1123 {
1124         struct via82xx *chip = snd_pcm_substream_chip(substream);
1125         struct viadev *viadev = substream->runtime->private_data;
1126         struct snd_pcm_runtime *runtime = substream->runtime;
1127
1128         if (via_lock_rate(&chip->rates[1], runtime->rate) < 0)
1129                 return -EINVAL;
1130         snd_ac97_set_rate(chip->ac97, AC97_PCM_LR_ADC_RATE, runtime->rate);
1131         snd_via82xx_channel_reset(chip, viadev);
1132         snd_via82xx_set_table_ptr(chip, viadev);
1133         outb(VIA_REG_CAPTURE_FIFO_ENABLE, VIADEV_REG(viadev, OFS_CAPTURE_FIFO));
1134         outl((runtime->format == SNDRV_PCM_FORMAT_S16_LE ? VIA8233_REG_TYPE_16BIT : 0) |
1135              (runtime->channels > 1 ? VIA8233_REG_TYPE_STEREO : 0) |
1136              0xff000000,    /* STOP index is never reached */
1137              VIADEV_REG(viadev, OFFSET_STOP_IDX));
1138         udelay(20);
1139         snd_via82xx_codec_ready(chip, 0);
1140         return 0;
1141 }
1142
1143
1144 /*
1145  * pcm hardware definition, identical for both playback and capture
1146  */
1147 static struct snd_pcm_hardware snd_via82xx_hw =
1148 {
1149         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1150                                  SNDRV_PCM_INFO_BLOCK_TRANSFER |
1151                                  SNDRV_PCM_INFO_MMAP_VALID |
1152                                  /* SNDRV_PCM_INFO_RESUME | */
1153                                  SNDRV_PCM_INFO_PAUSE),
1154         .formats =              SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
1155         .rates =                SNDRV_PCM_RATE_48000,
1156         .rate_min =             48000,
1157         .rate_max =             48000,
1158         .channels_min =         1,
1159         .channels_max =         2,
1160         .buffer_bytes_max =     VIA_MAX_BUFSIZE,
1161         .period_bytes_min =     32,
1162         .period_bytes_max =     VIA_MAX_BUFSIZE / 2,
1163         .periods_min =          2,
1164         .periods_max =          VIA_TABLE_SIZE / 2,
1165         .fifo_size =            0,
1166 };
1167
1168
1169 /*
1170  * open callback skeleton
1171  */
1172 static int snd_via82xx_pcm_open(struct via82xx *chip, struct viadev *viadev,
1173                                 struct snd_pcm_substream *substream)
1174 {
1175         struct snd_pcm_runtime *runtime = substream->runtime;
1176         int err;
1177         struct via_rate_lock *ratep;
1178
1179         runtime->hw = snd_via82xx_hw;
1180         
1181         /* set the hw rate condition */
1182         ratep = &chip->rates[viadev->direction];
1183         spin_lock_irq(&ratep->lock);
1184         ratep->used++;
1185         if (chip->spdif_on && viadev->reg_offset == 0x30) {
1186                 /* DXS#3 and spdif is on */
1187                 runtime->hw.rates = chip->ac97->rates[AC97_RATES_SPDIF];
1188                 snd_pcm_limit_hw_rates(runtime);
1189         } else if (chip->dxs_fixed && viadev->reg_offset < 0x40) {
1190                 /* fixed DXS playback rate */
1191                 runtime->hw.rates = SNDRV_PCM_RATE_48000;
1192                 runtime->hw.rate_min = runtime->hw.rate_max = 48000;
1193         } else if (chip->dxs_src && viadev->reg_offset < 0x40) {
1194                 /* use full SRC capabilities of DXS */
1195                 runtime->hw.rates = (SNDRV_PCM_RATE_CONTINUOUS |
1196                                      SNDRV_PCM_RATE_8000_48000);
1197                 runtime->hw.rate_min = 8000;
1198                 runtime->hw.rate_max = 48000;
1199         } else if (! ratep->rate) {
1200                 int idx = viadev->direction ? AC97_RATES_ADC : AC97_RATES_FRONT_DAC;
1201                 runtime->hw.rates = chip->ac97->rates[idx];
1202                 snd_pcm_limit_hw_rates(runtime);
1203         } else {
1204                 /* a fixed rate */
1205                 runtime->hw.rates = SNDRV_PCM_RATE_KNOT;
1206                 runtime->hw.rate_max = runtime->hw.rate_min = ratep->rate;
1207         }
1208         spin_unlock_irq(&ratep->lock);
1209
1210         /* we may remove following constaint when we modify table entries
1211            in interrupt */
1212         if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
1213                 return err;
1214
1215         runtime->private_data = viadev;
1216         viadev->substream = substream;
1217
1218         return 0;
1219 }
1220
1221
1222 /*
1223  * open callback for playback on via686
1224  */
1225 static int snd_via686_playback_open(struct snd_pcm_substream *substream)
1226 {
1227         struct via82xx *chip = snd_pcm_substream_chip(substream);
1228         struct viadev *viadev = &chip->devs[chip->playback_devno + substream->number];
1229         int err;
1230
1231         if ((err = snd_via82xx_pcm_open(chip, viadev, substream)) < 0)
1232                 return err;
1233         return 0;
1234 }
1235
1236 /*
1237  * open callback for playback on via823x DXS
1238  */
1239 static int snd_via8233_playback_open(struct snd_pcm_substream *substream)
1240 {
1241         struct via82xx *chip = snd_pcm_substream_chip(substream);
1242         struct viadev *viadev;
1243         unsigned int stream;
1244         int err;
1245
1246         viadev = &chip->devs[chip->playback_devno + substream->number];
1247         if ((err = snd_via82xx_pcm_open(chip, viadev, substream)) < 0)
1248                 return err;
1249         stream = viadev->reg_offset / 0x10;
1250         if (chip->dxs_controls[stream]) {
1251                 chip->playback_volume[stream][0] =
1252                                 VIA_DXS_MAX_VOLUME - (dxs_init_volume & 31);
1253                 chip->playback_volume[stream][1] =
1254                                 VIA_DXS_MAX_VOLUME - (dxs_init_volume & 31);
1255                 chip->dxs_controls[stream]->vd[0].access &=
1256                         ~SNDRV_CTL_ELEM_ACCESS_INACTIVE;
1257                 snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE |
1258                                SNDRV_CTL_EVENT_MASK_INFO,
1259                                &chip->dxs_controls[stream]->id);
1260         }
1261         return 0;
1262 }
1263
1264 /*
1265  * open callback for playback on via823x multi-channel
1266  */
1267 static int snd_via8233_multi_open(struct snd_pcm_substream *substream)
1268 {
1269         struct via82xx *chip = snd_pcm_substream_chip(substream);
1270         struct viadev *viadev = &chip->devs[chip->multi_devno];
1271         int err;
1272         /* channels constraint for VIA8233A
1273          * 3 and 5 channels are not supported
1274          */
1275         static unsigned int channels[] = {
1276                 1, 2, 4, 6
1277         };
1278         static struct snd_pcm_hw_constraint_list hw_constraints_channels = {
1279                 .count = ARRAY_SIZE(channels),
1280                 .list = channels,
1281                 .mask = 0,
1282         };
1283
1284         if ((err = snd_via82xx_pcm_open(chip, viadev, substream)) < 0)
1285                 return err;
1286         substream->runtime->hw.channels_max = 6;
1287         if (chip->revision == VIA_REV_8233A)
1288                 snd_pcm_hw_constraint_list(substream->runtime, 0,
1289                                            SNDRV_PCM_HW_PARAM_CHANNELS,
1290                                            &hw_constraints_channels);
1291         return 0;
1292 }
1293
1294 /*
1295  * open callback for capture on via686 and via823x
1296  */
1297 static int snd_via82xx_capture_open(struct snd_pcm_substream *substream)
1298 {
1299         struct via82xx *chip = snd_pcm_substream_chip(substream);
1300         struct viadev *viadev = &chip->devs[chip->capture_devno + substream->pcm->device];
1301
1302         return snd_via82xx_pcm_open(chip, viadev, substream);
1303 }
1304
1305 /*
1306  * close callback
1307  */
1308 static int snd_via82xx_pcm_close(struct snd_pcm_substream *substream)
1309 {
1310         struct via82xx *chip = snd_pcm_substream_chip(substream);
1311         struct viadev *viadev = substream->runtime->private_data;
1312         struct via_rate_lock *ratep;
1313
1314         /* release the rate lock */
1315         ratep = &chip->rates[viadev->direction];
1316         spin_lock_irq(&ratep->lock);
1317         ratep->used--;
1318         if (! ratep->used)
1319                 ratep->rate = 0;
1320         spin_unlock_irq(&ratep->lock);
1321         if (! ratep->rate) {
1322                 if (! viadev->direction) {
1323                         snd_ac97_update_power(chip->ac97,
1324                                               AC97_PCM_FRONT_DAC_RATE, 0);
1325                         snd_ac97_update_power(chip->ac97,
1326                                               AC97_PCM_SURR_DAC_RATE, 0);
1327                         snd_ac97_update_power(chip->ac97,
1328                                               AC97_PCM_LFE_DAC_RATE, 0);
1329                 } else
1330                         snd_ac97_update_power(chip->ac97,
1331                                               AC97_PCM_LR_ADC_RATE, 0);
1332         }
1333         viadev->substream = NULL;
1334         return 0;
1335 }
1336
1337 static int snd_via8233_playback_close(struct snd_pcm_substream *substream)
1338 {
1339         struct via82xx *chip = snd_pcm_substream_chip(substream);
1340         struct viadev *viadev = substream->runtime->private_data;
1341         unsigned int stream;
1342
1343         stream = viadev->reg_offset / 0x10;
1344         if (chip->dxs_controls[stream]) {
1345                 chip->dxs_controls[stream]->vd[0].access |=
1346                         SNDRV_CTL_ELEM_ACCESS_INACTIVE;
1347                 snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_INFO,
1348                                &chip->dxs_controls[stream]->id);
1349         }
1350         return snd_via82xx_pcm_close(substream);
1351 }
1352
1353
1354 /* via686 playback callbacks */
1355 static struct snd_pcm_ops snd_via686_playback_ops = {
1356         .open =         snd_via686_playback_open,
1357         .close =        snd_via82xx_pcm_close,
1358         .ioctl =        snd_pcm_lib_ioctl,
1359         .hw_params =    snd_via82xx_hw_params,
1360         .hw_free =      snd_via82xx_hw_free,
1361         .prepare =      snd_via686_playback_prepare,
1362         .trigger =      snd_via82xx_pcm_trigger,
1363         .pointer =      snd_via686_pcm_pointer,
1364         .page =         snd_pcm_sgbuf_ops_page,
1365 };
1366
1367 /* via686 capture callbacks */
1368 static struct snd_pcm_ops snd_via686_capture_ops = {
1369         .open =         snd_via82xx_capture_open,
1370         .close =        snd_via82xx_pcm_close,
1371         .ioctl =        snd_pcm_lib_ioctl,
1372         .hw_params =    snd_via82xx_hw_params,
1373         .hw_free =      snd_via82xx_hw_free,
1374         .prepare =      snd_via686_capture_prepare,
1375         .trigger =      snd_via82xx_pcm_trigger,
1376         .pointer =      snd_via686_pcm_pointer,
1377         .page =         snd_pcm_sgbuf_ops_page,
1378 };
1379
1380 /* via823x DSX playback callbacks */
1381 static struct snd_pcm_ops snd_via8233_playback_ops = {
1382         .open =         snd_via8233_playback_open,
1383         .close =        snd_via8233_playback_close,
1384         .ioctl =        snd_pcm_lib_ioctl,
1385         .hw_params =    snd_via82xx_hw_params,
1386         .hw_free =      snd_via82xx_hw_free,
1387         .prepare =      snd_via8233_playback_prepare,
1388         .trigger =      snd_via82xx_pcm_trigger,
1389         .pointer =      snd_via8233_pcm_pointer,
1390         .page =         snd_pcm_sgbuf_ops_page,
1391 };
1392
1393 /* via823x multi-channel playback callbacks */
1394 static struct snd_pcm_ops snd_via8233_multi_ops = {
1395         .open =         snd_via8233_multi_open,
1396         .close =        snd_via82xx_pcm_close,
1397         .ioctl =        snd_pcm_lib_ioctl,
1398         .hw_params =    snd_via82xx_hw_params,
1399         .hw_free =      snd_via82xx_hw_free,
1400         .prepare =      snd_via8233_multi_prepare,
1401         .trigger =      snd_via82xx_pcm_trigger,
1402         .pointer =      snd_via8233_pcm_pointer,
1403         .page =         snd_pcm_sgbuf_ops_page,
1404 };
1405
1406 /* via823x capture callbacks */
1407 static struct snd_pcm_ops snd_via8233_capture_ops = {
1408         .open =         snd_via82xx_capture_open,
1409         .close =        snd_via82xx_pcm_close,
1410         .ioctl =        snd_pcm_lib_ioctl,
1411         .hw_params =    snd_via82xx_hw_params,
1412         .hw_free =      snd_via82xx_hw_free,
1413         .prepare =      snd_via8233_capture_prepare,
1414         .trigger =      snd_via82xx_pcm_trigger,
1415         .pointer =      snd_via8233_pcm_pointer,
1416         .page =         snd_pcm_sgbuf_ops_page,
1417 };
1418
1419
1420 static void init_viadev(struct via82xx *chip, int idx, unsigned int reg_offset,
1421                         int shadow_pos, int direction)
1422 {
1423         chip->devs[idx].reg_offset = reg_offset;
1424         chip->devs[idx].shadow_shift = shadow_pos * 4;
1425         chip->devs[idx].direction = direction;
1426         chip->devs[idx].port = chip->port + reg_offset;
1427 }
1428
1429 /*
1430  * create pcm instances for VIA8233, 8233C and 8235 (not 8233A)
1431  */
1432 static int __devinit snd_via8233_pcm_new(struct via82xx *chip)
1433 {
1434         struct snd_pcm *pcm;
1435         int i, err;
1436
1437         chip->playback_devno = 0;       /* x 4 */
1438         chip->multi_devno = 4;          /* x 1 */
1439         chip->capture_devno = 5;        /* x 2 */
1440         chip->num_devs = 7;
1441         chip->intr_mask = 0x33033333; /* FLAG|EOL for rec0-1, mc, sdx0-3 */
1442
1443         /* PCM #0:  4 DSX playbacks and 1 capture */
1444         err = snd_pcm_new(chip->card, chip->card->shortname, 0, 4, 1, &pcm);
1445         if (err < 0)
1446                 return err;
1447         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_via8233_playback_ops);
1448         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_via8233_capture_ops);
1449         pcm->private_data = chip;
1450         strcpy(pcm->name, chip->card->shortname);
1451         chip->pcms[0] = pcm;
1452         /* set up playbacks */
1453         for (i = 0; i < 4; i++)
1454                 init_viadev(chip, i, 0x10 * i, i, 0);
1455         /* capture */
1456         init_viadev(chip, chip->capture_devno, VIA_REG_CAPTURE_8233_STATUS, 6, 1);
1457
1458         snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
1459                                               snd_dma_pci_data(chip->pci),
1460                                               64*1024, VIA_MAX_BUFSIZE);
1461
1462         /* PCM #1:  multi-channel playback and 2nd capture */
1463         err = snd_pcm_new(chip->card, chip->card->shortname, 1, 1, 1, &pcm);
1464         if (err < 0)
1465                 return err;
1466         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_via8233_multi_ops);
1467         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_via8233_capture_ops);
1468         pcm->private_data = chip;
1469         strcpy(pcm->name, chip->card->shortname);
1470         chip->pcms[1] = pcm;
1471         /* set up playback */
1472         init_viadev(chip, chip->multi_devno, VIA_REG_MULTPLAY_STATUS, 4, 0);
1473         /* set up capture */
1474         init_viadev(chip, chip->capture_devno + 1, VIA_REG_CAPTURE_8233_STATUS + 0x10, 7, 1);
1475
1476         snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
1477                                               snd_dma_pci_data(chip->pci),
1478                                               64*1024, VIA_MAX_BUFSIZE);
1479         return 0;
1480 }
1481
1482 /*
1483  * create pcm instances for VIA8233A
1484  */
1485 static int __devinit snd_via8233a_pcm_new(struct via82xx *chip)
1486 {
1487         struct snd_pcm *pcm;
1488         int err;
1489
1490         chip->multi_devno = 0;
1491         chip->playback_devno = 1;
1492         chip->capture_devno = 2;
1493         chip->num_devs = 3;
1494         chip->intr_mask = 0x03033000; /* FLAG|EOL for rec0, mc, sdx3 */
1495
1496         /* PCM #0:  multi-channel playback and capture */
1497         err = snd_pcm_new(chip->card, chip->card->shortname, 0, 1, 1, &pcm);
1498         if (err < 0)
1499                 return err;
1500         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_via8233_multi_ops);
1501         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_via8233_capture_ops);
1502         pcm->private_data = chip;
1503         strcpy(pcm->name, chip->card->shortname);
1504         chip->pcms[0] = pcm;
1505         /* set up playback */
1506         init_viadev(chip, chip->multi_devno, VIA_REG_MULTPLAY_STATUS, 4, 0);
1507         /* capture */
1508         init_viadev(chip, chip->capture_devno, VIA_REG_CAPTURE_8233_STATUS, 6, 1);
1509
1510         snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
1511                                               snd_dma_pci_data(chip->pci),
1512                                               64*1024, VIA_MAX_BUFSIZE);
1513
1514         /* SPDIF supported? */
1515         if (! ac97_can_spdif(chip->ac97))
1516                 return 0;
1517
1518         /* PCM #1:  DXS3 playback (for spdif) */
1519         err = snd_pcm_new(chip->card, chip->card->shortname, 1, 1, 0, &pcm);
1520         if (err < 0)
1521                 return err;
1522         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_via8233_playback_ops);
1523         pcm->private_data = chip;
1524         strcpy(pcm->name, chip->card->shortname);
1525         chip->pcms[1] = pcm;
1526         /* set up playback */
1527         init_viadev(chip, chip->playback_devno, 0x30, 3, 0);
1528
1529         snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
1530                                               snd_dma_pci_data(chip->pci),
1531                                               64*1024, VIA_MAX_BUFSIZE);
1532         return 0;
1533 }
1534
1535 /*
1536  * create a pcm instance for via686a/b
1537  */
1538 static int __devinit snd_via686_pcm_new(struct via82xx *chip)
1539 {
1540         struct snd_pcm *pcm;
1541         int err;
1542
1543         chip->playback_devno = 0;
1544         chip->capture_devno = 1;
1545         chip->num_devs = 2;
1546         chip->intr_mask = 0x77; /* FLAG | EOL for PB, CP, FM */
1547
1548         err = snd_pcm_new(chip->card, chip->card->shortname, 0, 1, 1, &pcm);
1549         if (err < 0)
1550                 return err;
1551         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_via686_playback_ops);
1552         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_via686_capture_ops);
1553         pcm->private_data = chip;
1554         strcpy(pcm->name, chip->card->shortname);
1555         chip->pcms[0] = pcm;
1556         init_viadev(chip, 0, VIA_REG_PLAYBACK_STATUS, 0, 0);
1557         init_viadev(chip, 1, VIA_REG_CAPTURE_STATUS, 0, 1);
1558
1559         snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
1560                                               snd_dma_pci_data(chip->pci),
1561                                               64*1024, VIA_MAX_BUFSIZE);
1562         return 0;
1563 }
1564
1565
1566 /*
1567  *  Mixer part
1568  */
1569
1570 static int snd_via8233_capture_source_info(struct snd_kcontrol *kcontrol,
1571                                            struct snd_ctl_elem_info *uinfo)
1572 {
1573         /* formerly they were "Line" and "Mic", but it looks like that they
1574          * have nothing to do with the actual physical connections...
1575          */
1576         static char *texts[2] = {
1577                 "Input1", "Input2"
1578         };
1579         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
1580         uinfo->count = 1;
1581         uinfo->value.enumerated.items = 2;
1582         if (uinfo->value.enumerated.item >= 2)
1583                 uinfo->value.enumerated.item = 1;
1584         strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
1585         return 0;
1586 }
1587
1588 static int snd_via8233_capture_source_get(struct snd_kcontrol *kcontrol,
1589                                           struct snd_ctl_elem_value *ucontrol)
1590 {
1591         struct via82xx *chip = snd_kcontrol_chip(kcontrol);
1592         unsigned long port = chip->port + (kcontrol->id.index ? (VIA_REG_CAPTURE_CHANNEL + 0x10) : VIA_REG_CAPTURE_CHANNEL);
1593         ucontrol->value.enumerated.item[0] = inb(port) & VIA_REG_CAPTURE_CHANNEL_MIC ? 1 : 0;
1594         return 0;
1595 }
1596
1597 static int snd_via8233_capture_source_put(struct snd_kcontrol *kcontrol,
1598                                           struct snd_ctl_elem_value *ucontrol)
1599 {
1600         struct via82xx *chip = snd_kcontrol_chip(kcontrol);
1601         unsigned long port = chip->port + (kcontrol->id.index ? (VIA_REG_CAPTURE_CHANNEL + 0x10) : VIA_REG_CAPTURE_CHANNEL);
1602         u8 val, oval;
1603
1604         spin_lock_irq(&chip->reg_lock);
1605         oval = inb(port);
1606         val = oval & ~VIA_REG_CAPTURE_CHANNEL_MIC;
1607         if (ucontrol->value.enumerated.item[0])
1608                 val |= VIA_REG_CAPTURE_CHANNEL_MIC;
1609         if (val != oval)
1610                 outb(val, port);
1611         spin_unlock_irq(&chip->reg_lock);
1612         return val != oval;
1613 }
1614
1615 static struct snd_kcontrol_new snd_via8233_capture_source __devinitdata = {
1616         .name = "Input Source Select",
1617         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1618         .info = snd_via8233_capture_source_info,
1619         .get = snd_via8233_capture_source_get,
1620         .put = snd_via8233_capture_source_put,
1621 };
1622
1623 #define snd_via8233_dxs3_spdif_info     snd_ctl_boolean_mono_info
1624
1625 static int snd_via8233_dxs3_spdif_get(struct snd_kcontrol *kcontrol,
1626                                       struct snd_ctl_elem_value *ucontrol)
1627 {
1628         struct via82xx *chip = snd_kcontrol_chip(kcontrol);
1629         u8 val;
1630
1631         pci_read_config_byte(chip->pci, VIA8233_SPDIF_CTRL, &val);
1632         ucontrol->value.integer.value[0] = (val & VIA8233_SPDIF_DX3) ? 1 : 0;
1633         return 0;
1634 }
1635
1636 static int snd_via8233_dxs3_spdif_put(struct snd_kcontrol *kcontrol,
1637                                       struct snd_ctl_elem_value *ucontrol)
1638 {
1639         struct via82xx *chip = snd_kcontrol_chip(kcontrol);
1640         u8 val, oval;
1641
1642         pci_read_config_byte(chip->pci, VIA8233_SPDIF_CTRL, &oval);
1643         val = oval & ~VIA8233_SPDIF_DX3;
1644         if (ucontrol->value.integer.value[0])
1645                 val |= VIA8233_SPDIF_DX3;
1646         /* save the spdif flag for rate filtering */
1647         chip->spdif_on = ucontrol->value.integer.value[0] ? 1 : 0;
1648         if (val != oval) {
1649                 pci_write_config_byte(chip->pci, VIA8233_SPDIF_CTRL, val);
1650                 return 1;
1651         }
1652         return 0;
1653 }
1654
1655 static struct snd_kcontrol_new snd_via8233_dxs3_spdif_control __devinitdata = {
1656         .name = SNDRV_CTL_NAME_IEC958("Output ",NONE,SWITCH),
1657         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1658         .info = snd_via8233_dxs3_spdif_info,
1659         .get = snd_via8233_dxs3_spdif_get,
1660         .put = snd_via8233_dxs3_spdif_put,
1661 };
1662
1663 static int snd_via8233_dxs_volume_info(struct snd_kcontrol *kcontrol,
1664                                        struct snd_ctl_elem_info *uinfo)
1665 {
1666         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
1667         uinfo->count = 2;
1668         uinfo->value.integer.min = 0;
1669         uinfo->value.integer.max = VIA_DXS_MAX_VOLUME;
1670         return 0;
1671 }
1672
1673 static int snd_via8233_dxs_volume_get(struct snd_kcontrol *kcontrol,
1674                                       struct snd_ctl_elem_value *ucontrol)
1675 {
1676         struct via82xx *chip = snd_kcontrol_chip(kcontrol);
1677         unsigned int idx = kcontrol->id.subdevice;
1678
1679         ucontrol->value.integer.value[0] = VIA_DXS_MAX_VOLUME - chip->playback_volume[idx][0];
1680         ucontrol->value.integer.value[1] = VIA_DXS_MAX_VOLUME - chip->playback_volume[idx][1];
1681         return 0;
1682 }
1683
1684 static int snd_via8233_pcmdxs_volume_get(struct snd_kcontrol *kcontrol,
1685                                          struct snd_ctl_elem_value *ucontrol)
1686 {
1687         struct via82xx *chip = snd_kcontrol_chip(kcontrol);
1688         ucontrol->value.integer.value[0] = VIA_DXS_MAX_VOLUME - chip->playback_volume_c[0];
1689         ucontrol->value.integer.value[1] = VIA_DXS_MAX_VOLUME - chip->playback_volume_c[1];
1690         return 0;
1691 }
1692
1693 static int snd_via8233_dxs_volume_put(struct snd_kcontrol *kcontrol,
1694                                       struct snd_ctl_elem_value *ucontrol)
1695 {
1696         struct via82xx *chip = snd_kcontrol_chip(kcontrol);
1697         unsigned int idx = kcontrol->id.subdevice;
1698         unsigned long port = chip->port + 0x10 * idx;
1699         unsigned char val;
1700         int i, change = 0;
1701
1702         for (i = 0; i < 2; i++) {
1703                 val = ucontrol->value.integer.value[i];
1704                 if (val > VIA_DXS_MAX_VOLUME)
1705                         val = VIA_DXS_MAX_VOLUME;
1706                 val = VIA_DXS_MAX_VOLUME - val;
1707                 change |= val != chip->playback_volume[idx][i];
1708                 if (change) {
1709                         chip->playback_volume[idx][i] = val;
1710                         outb(val, port + VIA_REG_OFS_PLAYBACK_VOLUME_L + i);
1711                 }
1712         }
1713         return change;
1714 }
1715
1716 static int snd_via8233_pcmdxs_volume_put(struct snd_kcontrol *kcontrol,
1717                                          struct snd_ctl_elem_value *ucontrol)
1718 {
1719         struct via82xx *chip = snd_kcontrol_chip(kcontrol);
1720         unsigned int idx;
1721         unsigned char val;
1722         int i, change = 0;
1723
1724         for (i = 0; i < 2; i++) {
1725                 val = ucontrol->value.integer.value[i];
1726                 if (val > VIA_DXS_MAX_VOLUME)
1727                         val = VIA_DXS_MAX_VOLUME;
1728                 val = VIA_DXS_MAX_VOLUME - val;
1729                 if (val != chip->playback_volume_c[i]) {
1730                         change = 1;
1731                         chip->playback_volume_c[i] = val;
1732                         for (idx = 0; idx < 4; idx++) {
1733                                 unsigned long port = chip->port + 0x10 * idx;
1734                                 chip->playback_volume[idx][i] = val;
1735                                 outb(val, port + VIA_REG_OFS_PLAYBACK_VOLUME_L + i);
1736                         }
1737                 }
1738         }
1739         return change;
1740 }
1741
1742 static const DECLARE_TLV_DB_SCALE(db_scale_dxs, -4650, 150, 1);
1743
1744 static struct snd_kcontrol_new snd_via8233_pcmdxs_volume_control __devinitdata = {
1745         .name = "PCM Playback Volume",
1746         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1747         .access = (SNDRV_CTL_ELEM_ACCESS_READWRITE |
1748                    SNDRV_CTL_ELEM_ACCESS_TLV_READ),
1749         .info = snd_via8233_dxs_volume_info,
1750         .get = snd_via8233_pcmdxs_volume_get,
1751         .put = snd_via8233_pcmdxs_volume_put,
1752         .tlv = { .p = db_scale_dxs }
1753 };
1754
1755 static struct snd_kcontrol_new snd_via8233_dxs_volume_control __devinitdata = {
1756         .iface = SNDRV_CTL_ELEM_IFACE_PCM,
1757         .device = 0,
1758         /* .subdevice set later */
1759         .name = "PCM Playback Volume",
1760         .access = SNDRV_CTL_ELEM_ACCESS_READWRITE |
1761                   SNDRV_CTL_ELEM_ACCESS_TLV_READ |
1762                   SNDRV_CTL_ELEM_ACCESS_INACTIVE,
1763         .info = snd_via8233_dxs_volume_info,
1764         .get = snd_via8233_dxs_volume_get,
1765         .put = snd_via8233_dxs_volume_put,
1766         .tlv = { .p = db_scale_dxs }
1767 };
1768
1769 /*
1770  */
1771
1772 static void snd_via82xx_mixer_free_ac97_bus(struct snd_ac97_bus *bus)
1773 {
1774         struct via82xx *chip = bus->private_data;
1775         chip->ac97_bus = NULL;
1776 }
1777
1778 static void snd_via82xx_mixer_free_ac97(struct snd_ac97 *ac97)
1779 {
1780         struct via82xx *chip = ac97->private_data;
1781         chip->ac97 = NULL;
1782 }
1783
1784 static struct ac97_quirk ac97_quirks[] = {
1785         {
1786                 .subvendor = 0x1106,
1787                 .subdevice = 0x4161,
1788                 .codec_id = 0x56494161, /* VT1612A */
1789                 .name = "Soltek SL-75DRV5",
1790                 .type = AC97_TUNE_NONE
1791         },
1792         {       /* FIXME: which codec? */
1793                 .subvendor = 0x1106,
1794                 .subdevice = 0x4161,
1795                 .name = "ASRock K7VT2",
1796                 .type = AC97_TUNE_HP_ONLY
1797         },
1798         {
1799                 .subvendor = 0x110a,
1800                 .subdevice = 0x0079,
1801                 .name = "Fujitsu Siemens D1289",
1802                 .type = AC97_TUNE_HP_ONLY
1803         },
1804         {
1805                 .subvendor = 0x1019,
1806                 .subdevice = 0x0a81,
1807                 .name = "ECS K7VTA3",
1808                 .type = AC97_TUNE_HP_ONLY
1809         },
1810         {
1811                 .subvendor = 0x1019,
1812                 .subdevice = 0x0a85,
1813                 .name = "ECS L7VMM2",
1814                 .type = AC97_TUNE_HP_ONLY
1815         },
1816         {
1817                 .subvendor = 0x1019,
1818                 .subdevice = 0x1841,
1819                 .name = "ECS K7VTA3",
1820                 .type = AC97_TUNE_HP_ONLY
1821         },
1822         {
1823                 .subvendor = 0x1849,
1824                 .subdevice = 0x3059,
1825                 .name = "ASRock K7VM2",
1826                 .type = AC97_TUNE_HP_ONLY       /* VT1616 */
1827         },
1828         {
1829                 .subvendor = 0x14cd,
1830                 .subdevice = 0x7002,
1831                 .name = "Unknown",
1832                 .type = AC97_TUNE_ALC_JACK
1833         },
1834         {
1835                 .subvendor = 0x1071,
1836                 .subdevice = 0x8590,
1837                 .name = "Mitac Mobo",
1838                 .type = AC97_TUNE_ALC_JACK
1839         },
1840         {
1841                 .subvendor = 0x161f,
1842                 .subdevice = 0x202b,
1843                 .name = "Arima Notebook",
1844                 .type = AC97_TUNE_HP_ONLY,
1845         },
1846         {
1847                 .subvendor = 0x161f,
1848                 .subdevice = 0x2032,
1849                 .name = "Targa Traveller 811",
1850                 .type = AC97_TUNE_HP_ONLY,
1851         },
1852         {
1853                 .subvendor = 0x161f,
1854                 .subdevice = 0x2032,
1855                 .name = "m680x",
1856                 .type = AC97_TUNE_HP_ONLY, /* http://launchpad.net/bugs/38546 */
1857         },
1858         {
1859                 .subvendor = 0x1297,
1860                 .subdevice = 0xa232,
1861                 .name = "Shuttle AK32VN",
1862                 .type = AC97_TUNE_HP_ONLY
1863         },
1864         { } /* terminator */
1865 };
1866
1867 static int __devinit snd_via82xx_mixer_new(struct via82xx *chip, const char *quirk_override)
1868 {
1869         struct snd_ac97_template ac97;
1870         int err;
1871         static struct snd_ac97_bus_ops ops = {
1872                 .write = snd_via82xx_codec_write,
1873                 .read = snd_via82xx_codec_read,
1874                 .wait = snd_via82xx_codec_wait,
1875         };
1876
1877         if ((err = snd_ac97_bus(chip->card, 0, &ops, chip, &chip->ac97_bus)) < 0)
1878                 return err;
1879         chip->ac97_bus->private_free = snd_via82xx_mixer_free_ac97_bus;
1880         chip->ac97_bus->clock = chip->ac97_clock;
1881
1882         memset(&ac97, 0, sizeof(ac97));
1883         ac97.private_data = chip;
1884         ac97.private_free = snd_via82xx_mixer_free_ac97;
1885         ac97.pci = chip->pci;
1886         ac97.scaps = AC97_SCAP_SKIP_MODEM | AC97_SCAP_POWER_SAVE;
1887         if ((err = snd_ac97_mixer(chip->ac97_bus, &ac97, &chip->ac97)) < 0)
1888                 return err;
1889
1890         snd_ac97_tune_hardware(chip->ac97, ac97_quirks, quirk_override);
1891
1892         if (chip->chip_type != TYPE_VIA686) {
1893                 /* use slot 10/11 */
1894                 snd_ac97_update_bits(chip->ac97, AC97_EXTENDED_STATUS, 0x03 << 4, 0x03 << 4);
1895         }
1896
1897         return 0;
1898 }
1899
1900 #ifdef SUPPORT_JOYSTICK
1901 #define JOYSTICK_ADDR   0x200
1902 static int __devinit snd_via686_create_gameport(struct via82xx *chip, unsigned char *legacy)
1903 {
1904         struct gameport *gp;
1905         struct resource *r;
1906
1907         if (!joystick)
1908                 return -ENODEV;
1909
1910         r = request_region(JOYSTICK_ADDR, 8, "VIA686 gameport");
1911         if (!r) {
1912                 printk(KERN_WARNING "via82xx: cannot reserve joystick port 0x%#x\n",
1913                        JOYSTICK_ADDR);
1914                 return -EBUSY;
1915         }
1916
1917         chip->gameport = gp = gameport_allocate_port();
1918         if (!gp) {
1919                 printk(KERN_ERR "via82xx: cannot allocate memory for gameport\n");
1920                 release_and_free_resource(r);
1921                 return -ENOMEM;
1922         }
1923
1924         gameport_set_name(gp, "VIA686 Gameport");
1925         gameport_set_phys(gp, "pci%s/gameport0", pci_name(chip->pci));
1926         gameport_set_dev_parent(gp, &chip->pci->dev);
1927         gp->io = JOYSTICK_ADDR;
1928         gameport_set_port_data(gp, r);
1929
1930         /* Enable legacy joystick port */
1931         *legacy |= VIA_FUNC_ENABLE_GAME;
1932         pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE, *legacy);
1933
1934         gameport_register_port(chip->gameport);
1935
1936         return 0;
1937 }
1938
1939 static void snd_via686_free_gameport(struct via82xx *chip)
1940 {
1941         if (chip->gameport) {
1942                 struct resource *r = gameport_get_port_data(chip->gameport);
1943
1944                 gameport_unregister_port(chip->gameport);
1945                 chip->gameport = NULL;
1946                 release_and_free_resource(r);
1947         }
1948 }
1949 #else
1950 static inline int snd_via686_create_gameport(struct via82xx *chip, unsigned char *legacy)
1951 {
1952         return -ENOSYS;
1953 }
1954 static inline void snd_via686_free_gameport(struct via82xx *chip) { }
1955 #endif
1956
1957
1958 /*
1959  *
1960  */
1961
1962 static int __devinit snd_via8233_init_misc(struct via82xx *chip)
1963 {
1964         int i, err, caps;
1965         unsigned char val;
1966
1967         caps = chip->chip_type == TYPE_VIA8233A ? 1 : 2;
1968         for (i = 0; i < caps; i++) {
1969                 snd_via8233_capture_source.index = i;
1970                 err = snd_ctl_add(chip->card, snd_ctl_new1(&snd_via8233_capture_source, chip));
1971                 if (err < 0)
1972                         return err;
1973         }
1974         if (ac97_can_spdif(chip->ac97)) {
1975                 err = snd_ctl_add(chip->card, snd_ctl_new1(&snd_via8233_dxs3_spdif_control, chip));
1976                 if (err < 0)
1977                         return err;
1978         }
1979         if (chip->chip_type != TYPE_VIA8233A) {
1980                 /* when no h/w PCM volume control is found, use DXS volume control
1981                  * as the PCM vol control
1982                  */
1983                 struct snd_ctl_elem_id sid;
1984                 memset(&sid, 0, sizeof(sid));
1985                 strcpy(sid.name, "PCM Playback Volume");
1986                 sid.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
1987                 if (! snd_ctl_find_id(chip->card, &sid)) {
1988                         snd_printd(KERN_INFO "Using DXS as PCM Playback\n");
1989                         err = snd_ctl_add(chip->card, snd_ctl_new1(&snd_via8233_pcmdxs_volume_control, chip));
1990                         if (err < 0)
1991                                 return err;
1992                 }
1993                 else /* Using DXS when PCM emulation is enabled is really weird */
1994                 {
1995                         for (i = 0; i < 4; ++i) {
1996                                 struct snd_kcontrol *kctl;
1997
1998                                 kctl = snd_ctl_new1(
1999                                         &snd_via8233_dxs_volume_control, chip);
2000                                 if (!kctl)
2001                                         return -ENOMEM;
2002                                 kctl->id.subdevice = i;
2003                                 err = snd_ctl_add(chip->card, kctl);
2004                                 if (err < 0)
2005                                         return err;
2006                                 chip->dxs_controls[i] = kctl;
2007                         }
2008                 }
2009         }
2010         /* select spdif data slot 10/11 */
2011         pci_read_config_byte(chip->pci, VIA8233_SPDIF_CTRL, &val);
2012         val = (val & ~VIA8233_SPDIF_SLOT_MASK) | VIA8233_SPDIF_SLOT_1011;
2013         val &= ~VIA8233_SPDIF_DX3; /* SPDIF off as default */
2014         pci_write_config_byte(chip->pci, VIA8233_SPDIF_CTRL, val);
2015
2016         return 0;
2017 }
2018
2019 static int __devinit snd_via686_init_misc(struct via82xx *chip)
2020 {
2021         unsigned char legacy, legacy_cfg;
2022         int rev_h = 0;
2023
2024         legacy = chip->old_legacy;
2025         legacy_cfg = chip->old_legacy_cfg;
2026         legacy |= VIA_FUNC_MIDI_IRQMASK;        /* FIXME: correct? (disable MIDI) */
2027         legacy &= ~VIA_FUNC_ENABLE_GAME;        /* disable joystick */
2028         if (chip->revision >= VIA_REV_686_H) {
2029                 rev_h = 1;
2030                 if (mpu_port >= 0x200) {        /* force MIDI */
2031                         mpu_port &= 0xfffc;
2032                         pci_write_config_dword(chip->pci, 0x18, mpu_port | 0x01);
2033 #ifdef CONFIG_PM
2034                         chip->mpu_port_saved = mpu_port;
2035 #endif
2036                 } else {
2037                         mpu_port = pci_resource_start(chip->pci, 2);
2038                 }
2039         } else {
2040                 switch (mpu_port) {     /* force MIDI */
2041                 case 0x300:
2042                 case 0x310:
2043                 case 0x320:
2044                 case 0x330:
2045                         legacy_cfg &= ~(3 << 2);
2046                         legacy_cfg |= (mpu_port & 0x0030) >> 2;
2047                         break;
2048                 default:                        /* no, use BIOS settings */
2049                         if (legacy & VIA_FUNC_ENABLE_MIDI)
2050                                 mpu_port = 0x300 + ((legacy_cfg & 0x000c) << 2);
2051                         break;
2052                 }
2053         }
2054         if (mpu_port >= 0x200 &&
2055             (chip->mpu_res = request_region(mpu_port, 2, "VIA82xx MPU401"))
2056             != NULL) {
2057                 if (rev_h)
2058                         legacy |= VIA_FUNC_MIDI_PNP;    /* enable PCI I/O 2 */
2059                 legacy |= VIA_FUNC_ENABLE_MIDI;
2060         } else {
2061                 if (rev_h)
2062                         legacy &= ~VIA_FUNC_MIDI_PNP;   /* disable PCI I/O 2 */
2063                 legacy &= ~VIA_FUNC_ENABLE_MIDI;
2064                 mpu_port = 0;
2065         }
2066
2067         pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE, legacy);
2068         pci_write_config_byte(chip->pci, VIA_PNP_CONTROL, legacy_cfg);
2069         if (chip->mpu_res) {
2070                 if (snd_mpu401_uart_new(chip->card, 0, MPU401_HW_VIA686A,
2071                                         mpu_port, MPU401_INFO_INTEGRATED,
2072                                         chip->irq, 0, &chip->rmidi) < 0) {
2073                         printk(KERN_WARNING "unable to initialize MPU-401"
2074                                " at 0x%lx, skipping\n", mpu_port);
2075                         legacy &= ~VIA_FUNC_ENABLE_MIDI;
2076                 } else {
2077                         legacy &= ~VIA_FUNC_MIDI_IRQMASK;       /* enable MIDI interrupt */
2078                 }
2079                 pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE, legacy);
2080         }
2081
2082         snd_via686_create_gameport(chip, &legacy);
2083
2084 #ifdef CONFIG_PM
2085         chip->legacy_saved = legacy;
2086         chip->legacy_cfg_saved = legacy_cfg;
2087 #endif
2088
2089         return 0;
2090 }
2091
2092
2093 /*
2094  * proc interface
2095  */
2096 static void snd_via82xx_proc_read(struct snd_info_entry *entry,
2097                                   struct snd_info_buffer *buffer)
2098 {
2099         struct via82xx *chip = entry->private_data;
2100         int i;
2101         
2102         snd_iprintf(buffer, "%s\n\n", chip->card->longname);
2103         for (i = 0; i < 0xa0; i += 4) {
2104                 snd_iprintf(buffer, "%02x: %08x\n", i, inl(chip->port + i));
2105         }
2106 }
2107
2108 static void __devinit snd_via82xx_proc_init(struct via82xx *chip)
2109 {
2110         struct snd_info_entry *entry;
2111
2112         if (! snd_card_proc_new(chip->card, "via82xx", &entry))
2113                 snd_info_set_text_ops(entry, chip, snd_via82xx_proc_read);
2114 }
2115
2116 /*
2117  *
2118  */
2119
2120 static int snd_via82xx_chip_init(struct via82xx *chip)
2121 {
2122         unsigned int val;
2123         unsigned long end_time;
2124         unsigned char pval;
2125
2126 #if 0 /* broken on K7M? */
2127         if (chip->chip_type == TYPE_VIA686)
2128                 /* disable all legacy ports */
2129                 pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE, 0);
2130 #endif
2131         pci_read_config_byte(chip->pci, VIA_ACLINK_STAT, &pval);
2132         if (! (pval & VIA_ACLINK_C00_READY)) { /* codec not ready? */
2133                 /* deassert ACLink reset, force SYNC */
2134                 pci_write_config_byte(chip->pci, VIA_ACLINK_CTRL,
2135                                       VIA_ACLINK_CTRL_ENABLE |
2136                                       VIA_ACLINK_CTRL_RESET |
2137                                       VIA_ACLINK_CTRL_SYNC);
2138                 udelay(100);
2139 #if 1 /* FIXME: should we do full reset here for all chip models? */
2140                 pci_write_config_byte(chip->pci, VIA_ACLINK_CTRL, 0x00);
2141                 udelay(100);
2142 #else
2143                 /* deassert ACLink reset, force SYNC (warm AC'97 reset) */
2144                 pci_write_config_byte(chip->pci, VIA_ACLINK_CTRL,
2145                                       VIA_ACLINK_CTRL_RESET|VIA_ACLINK_CTRL_SYNC);
2146                 udelay(2);
2147 #endif
2148                 /* ACLink on, deassert ACLink reset, VSR, SGD data out */
2149                 /* note - FM data out has trouble with non VRA codecs !! */
2150                 pci_write_config_byte(chip->pci, VIA_ACLINK_CTRL, VIA_ACLINK_CTRL_INIT);
2151                 udelay(100);
2152         }
2153         
2154         /* Make sure VRA is enabled, in case we didn't do a
2155          * complete codec reset, above */
2156         pci_read_config_byte(chip->pci, VIA_ACLINK_CTRL, &pval);
2157         if ((pval & VIA_ACLINK_CTRL_INIT) != VIA_ACLINK_CTRL_INIT) {
2158                 /* ACLink on, deassert ACLink reset, VSR, SGD data out */
2159                 /* note - FM data out has trouble with non VRA codecs !! */
2160                 pci_write_config_byte(chip->pci, VIA_ACLINK_CTRL, VIA_ACLINK_CTRL_INIT);
2161                 udelay(100);
2162         }
2163
2164         /* wait until codec ready */
2165         end_time = jiffies + msecs_to_jiffies(750);
2166         do {
2167                 pci_read_config_byte(chip->pci, VIA_ACLINK_STAT, &pval);
2168                 if (pval & VIA_ACLINK_C00_READY) /* primary codec ready */
2169                         break;
2170                 schedule_timeout_uninterruptible(1);
2171         } while (time_before(jiffies, end_time));
2172
2173         if ((val = snd_via82xx_codec_xread(chip)) & VIA_REG_AC97_BUSY)
2174                 snd_printk(KERN_ERR "AC'97 codec is not ready [0x%x]\n", val);
2175
2176 #if 0 /* FIXME: we don't support the second codec yet so skip the detection now.. */
2177         snd_via82xx_codec_xwrite(chip, VIA_REG_AC97_READ |
2178                                  VIA_REG_AC97_SECONDARY_VALID |
2179                                  (VIA_REG_AC97_CODEC_ID_SECONDARY << VIA_REG_AC97_CODEC_ID_SHIFT));
2180         end_time = jiffies + msecs_to_jiffies(750);
2181         snd_via82xx_codec_xwrite(chip, VIA_REG_AC97_READ |
2182                                  VIA_REG_AC97_SECONDARY_VALID |
2183                                  (VIA_REG_AC97_CODEC_ID_SECONDARY << VIA_REG_AC97_CODEC_ID_SHIFT));
2184         do {
2185                 if ((val = snd_via82xx_codec_xread(chip)) & VIA_REG_AC97_SECONDARY_VALID) {
2186                         chip->ac97_secondary = 1;
2187                         goto __ac97_ok2;
2188                 }
2189                 schedule_timeout_uninterruptible(1);
2190         } while (time_before(jiffies, end_time));
2191         /* This is ok, the most of motherboards have only one codec */
2192
2193       __ac97_ok2:
2194 #endif
2195
2196         if (chip->chip_type == TYPE_VIA686) {
2197                 /* route FM trap to IRQ, disable FM trap */
2198                 pci_write_config_byte(chip->pci, VIA_FM_NMI_CTRL, 0);
2199                 /* disable all GPI interrupts */
2200                 outl(0, VIAREG(chip, GPI_INTR));
2201         }
2202
2203         if (chip->chip_type != TYPE_VIA686) {
2204                 /* Workaround for Award BIOS bug:
2205                  * DXS channels don't work properly with VRA if MC97 is disabled.
2206                  */
2207                 struct pci_dev *pci;
2208                 pci = pci_get_device(0x1106, 0x3068, NULL); /* MC97 */
2209                 if (pci) {
2210                         unsigned char data;
2211                         pci_read_config_byte(pci, 0x44, &data);
2212                         pci_write_config_byte(pci, 0x44, data | 0x40);
2213                         pci_dev_put(pci);
2214                 }
2215         }
2216
2217         if (chip->chip_type != TYPE_VIA8233A) {
2218                 int i, idx;
2219                 for (idx = 0; idx < 4; idx++) {
2220                         unsigned long port = chip->port + 0x10 * idx;
2221                         for (i = 0; i < 2; i++) {
2222                                 chip->playback_volume[idx][i]=chip->playback_volume_c[i];
2223                                 outb(chip->playback_volume_c[i],
2224                                      port + VIA_REG_OFS_PLAYBACK_VOLUME_L + i);
2225                         }
2226                 }
2227         }
2228
2229         return 0;
2230 }
2231
2232 #ifdef CONFIG_PM
2233 /*
2234  * power management
2235  */
2236 static int snd_via82xx_suspend(struct pci_dev *pci, pm_message_t state)
2237 {
2238         struct snd_card *card = pci_get_drvdata(pci);
2239         struct via82xx *chip = card->private_data;
2240         int i;
2241
2242         snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
2243         for (i = 0; i < 2; i++)
2244                 snd_pcm_suspend_all(chip->pcms[i]);
2245         for (i = 0; i < chip->num_devs; i++)
2246                 snd_via82xx_channel_reset(chip, &chip->devs[i]);
2247         synchronize_irq(chip->irq);
2248         snd_ac97_suspend(chip->ac97);
2249
2250         /* save misc values */
2251         if (chip->chip_type != TYPE_VIA686) {
2252                 pci_read_config_byte(chip->pci, VIA8233_SPDIF_CTRL, &chip->spdif_ctrl_saved);
2253                 chip->capture_src_saved[0] = inb(chip->port + VIA_REG_CAPTURE_CHANNEL);
2254                 chip->capture_src_saved[1] = inb(chip->port + VIA_REG_CAPTURE_CHANNEL + 0x10);
2255         }
2256
2257         pci_disable_device(pci);
2258         pci_save_state(pci);
2259         pci_set_power_state(pci, pci_choose_state(pci, state));
2260         return 0;
2261 }
2262
2263 static int snd_via82xx_resume(struct pci_dev *pci)
2264 {
2265         struct snd_card *card = pci_get_drvdata(pci);
2266         struct via82xx *chip = card->private_data;
2267         int i;
2268
2269         pci_set_power_state(pci, PCI_D0);
2270         pci_restore_state(pci);
2271         if (pci_enable_device(pci) < 0) {
2272                 printk(KERN_ERR "via82xx: pci_enable_device failed, "
2273                        "disabling device\n");
2274                 snd_card_disconnect(card);
2275                 return -EIO;
2276         }
2277         pci_set_master(pci);
2278
2279         snd_via82xx_chip_init(chip);
2280
2281         if (chip->chip_type == TYPE_VIA686) {
2282                 if (chip->mpu_port_saved)
2283                         pci_write_config_dword(chip->pci, 0x18, chip->mpu_port_saved | 0x01);
2284                 pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE, chip->legacy_saved);
2285                 pci_write_config_byte(chip->pci, VIA_PNP_CONTROL, chip->legacy_cfg_saved);
2286         } else {
2287                 pci_write_config_byte(chip->pci, VIA8233_SPDIF_CTRL, chip->spdif_ctrl_saved);
2288                 outb(chip->capture_src_saved[0], chip->port + VIA_REG_CAPTURE_CHANNEL);
2289                 outb(chip->capture_src_saved[1], chip->port + VIA_REG_CAPTURE_CHANNEL + 0x10);
2290         }
2291
2292         snd_ac97_resume(chip->ac97);
2293
2294         for (i = 0; i < chip->num_devs; i++)
2295                 snd_via82xx_channel_reset(chip, &chip->devs[i]);
2296
2297         snd_power_change_state(card, SNDRV_CTL_POWER_D0);
2298         return 0;
2299 }
2300 #endif /* CONFIG_PM */
2301
2302 static int snd_via82xx_free(struct via82xx *chip)
2303 {
2304         unsigned int i;
2305
2306         if (chip->irq < 0)
2307                 goto __end_hw;
2308         /* disable interrupts */
2309         for (i = 0; i < chip->num_devs; i++)
2310                 snd_via82xx_channel_reset(chip, &chip->devs[i]);
2311
2312         if (chip->irq >= 0)
2313                 free_irq(chip->irq, chip);
2314  __end_hw:
2315         release_and_free_resource(chip->mpu_res);
2316         pci_release_regions(chip->pci);
2317
2318         if (chip->chip_type == TYPE_VIA686) {
2319                 snd_via686_free_gameport(chip);
2320                 pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE, chip->old_legacy);
2321                 pci_write_config_byte(chip->pci, VIA_PNP_CONTROL, chip->old_legacy_cfg);
2322         }
2323         pci_disable_device(chip->pci);
2324         kfree(chip);
2325         return 0;
2326 }
2327
2328 static int snd_via82xx_dev_free(struct snd_device *device)
2329 {
2330         struct via82xx *chip = device->device_data;
2331         return snd_via82xx_free(chip);
2332 }
2333
2334 static int __devinit snd_via82xx_create(struct snd_card *card,
2335                                         struct pci_dev *pci,
2336                                         int chip_type,
2337                                         int revision,
2338                                         unsigned int ac97_clock,
2339                                         struct via82xx ** r_via)
2340 {
2341         struct via82xx *chip;
2342         int err;
2343         static struct snd_device_ops ops = {
2344                 .dev_free =     snd_via82xx_dev_free,
2345         };
2346
2347         if ((err = pci_enable_device(pci)) < 0)
2348                 return err;
2349
2350         if ((chip = kzalloc(sizeof(*chip), GFP_KERNEL)) == NULL) {
2351                 pci_disable_device(pci);
2352                 return -ENOMEM;
2353         }
2354
2355         chip->chip_type = chip_type;
2356         chip->revision = revision;
2357
2358         spin_lock_init(&chip->reg_lock);
2359         spin_lock_init(&chip->rates[0].lock);
2360         spin_lock_init(&chip->rates[1].lock);
2361         chip->card = card;
2362         chip->pci = pci;
2363         chip->irq = -1;
2364
2365         pci_read_config_byte(pci, VIA_FUNC_ENABLE, &chip->old_legacy);
2366         pci_read_config_byte(pci, VIA_PNP_CONTROL, &chip->old_legacy_cfg);
2367         pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE,
2368                               chip->old_legacy & ~(VIA_FUNC_ENABLE_SB|VIA_FUNC_ENABLE_FM));
2369
2370         if ((err = pci_request_regions(pci, card->driver)) < 0) {
2371                 kfree(chip);
2372                 pci_disable_device(pci);
2373                 return err;
2374         }
2375         chip->port = pci_resource_start(pci, 0);
2376         if (request_irq(pci->irq,
2377                         chip_type == TYPE_VIA8233 ?
2378                         snd_via8233_interrupt : snd_via686_interrupt,
2379                         IRQF_SHARED,
2380                         KBUILD_MODNAME, chip)) {
2381                 snd_printk(KERN_ERR "unable to grab IRQ %d\n", pci->irq);
2382                 snd_via82xx_free(chip);
2383                 return -EBUSY;
2384         }
2385         chip->irq = pci->irq;
2386         if (ac97_clock >= 8000 && ac97_clock <= 48000)
2387                 chip->ac97_clock = ac97_clock;
2388         synchronize_irq(chip->irq);
2389
2390         if ((err = snd_via82xx_chip_init(chip)) < 0) {
2391                 snd_via82xx_free(chip);
2392                 return err;
2393         }
2394
2395         if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
2396                 snd_via82xx_free(chip);
2397                 return err;
2398         }
2399
2400         /* The 8233 ac97 controller does not implement the master bit
2401          * in the pci command register. IMHO this is a violation of the PCI spec.
2402          * We call pci_set_master here because it does not hurt. */
2403         pci_set_master(pci);
2404
2405         snd_card_set_dev(card, &pci->dev);
2406
2407         *r_via = chip;
2408         return 0;
2409 }
2410
2411 struct via823x_info {
2412         int revision;
2413         char *name;
2414         int type;
2415 };
2416 static struct via823x_info via823x_cards[] __devinitdata = {
2417         { VIA_REV_PRE_8233, "VIA 8233-Pre", TYPE_VIA8233 },
2418         { VIA_REV_8233C, "VIA 8233C", TYPE_VIA8233 },
2419         { VIA_REV_8233, "VIA 8233", TYPE_VIA8233 },
2420         { VIA_REV_8233A, "VIA 8233A", TYPE_VIA8233A },
2421         { VIA_REV_8235, "VIA 8235", TYPE_VIA8233 },
2422         { VIA_REV_8237, "VIA 8237", TYPE_VIA8233 },
2423         { VIA_REV_8251, "VIA 8251", TYPE_VIA8233 },
2424 };
2425
2426 /*
2427  * auto detection of DXS channel supports.
2428  */
2429
2430 static struct snd_pci_quirk dxs_whitelist[] __devinitdata = {
2431         SND_PCI_QUIRK(0x1005, 0x4710, "Avance Logic Mobo", VIA_DXS_ENABLE),
2432         SND_PCI_QUIRK(0x1019, 0x0996, "ESC Mobo", VIA_DXS_48K),
2433         SND_PCI_QUIRK(0x1019, 0x0a81, "ECS K7VTA3 v8.0", VIA_DXS_NO_VRA),
2434         SND_PCI_QUIRK(0x1019, 0x0a85, "ECS L7VMM2", VIA_DXS_NO_VRA),
2435         SND_PCI_QUIRK_VENDOR(0x1019, "ESC K8", VIA_DXS_SRC),
2436         SND_PCI_QUIRK(0x1019, 0xaa01, "ESC K8T890-A", VIA_DXS_SRC),
2437         SND_PCI_QUIRK(0x1025, 0x0033, "Acer Inspire 1353LM", VIA_DXS_NO_VRA),
2438         SND_PCI_QUIRK(0x1025, 0x0046, "Acer Aspire 1524 WLMi", VIA_DXS_SRC),
2439         SND_PCI_QUIRK_VENDOR(0x1043, "ASUS A7/A8", VIA_DXS_NO_VRA),
2440         SND_PCI_QUIRK_VENDOR(0x1071, "Diverse Notebook", VIA_DXS_NO_VRA),
2441         SND_PCI_QUIRK(0x10cf, 0x118e, "FSC Laptop", VIA_DXS_ENABLE),
2442         SND_PCI_QUIRK_VENDOR(0x1106, "ASRock", VIA_DXS_SRC),
2443         SND_PCI_QUIRK(0x1297, 0xa231, "Shuttle AK31v2", VIA_DXS_SRC),
2444         SND_PCI_QUIRK(0x1297, 0xa232, "Shuttle", VIA_DXS_SRC),
2445         SND_PCI_QUIRK(0x1297, 0xc160, "Shuttle Sk41G", VIA_DXS_SRC),
2446         SND_PCI_QUIRK(0x1458, 0xa002, "Gigabyte GA-7VAXP", VIA_DXS_ENABLE),
2447         SND_PCI_QUIRK(0x1462, 0x3800, "MSI KT266", VIA_DXS_ENABLE),
2448         SND_PCI_QUIRK(0x1462, 0x7120, "MSI KT4V", VIA_DXS_ENABLE),
2449         SND_PCI_QUIRK(0x1462, 0x7142, "MSI K8MM-V", VIA_DXS_ENABLE),
2450         SND_PCI_QUIRK_VENDOR(0x1462, "MSI Mobo", VIA_DXS_SRC),
2451         SND_PCI_QUIRK(0x147b, 0x1401, "ABIT KD7(-RAID)", VIA_DXS_ENABLE),
2452         SND_PCI_QUIRK(0x147b, 0x1411, "ABIT VA-20", VIA_DXS_ENABLE),
2453         SND_PCI_QUIRK(0x147b, 0x1413, "ABIT KV8 Pro", VIA_DXS_ENABLE),
2454         SND_PCI_QUIRK(0x147b, 0x1415, "ABIT AV8", VIA_DXS_NO_VRA),
2455         SND_PCI_QUIRK(0x14ff, 0x0403, "Twinhead mobo", VIA_DXS_ENABLE),
2456         SND_PCI_QUIRK(0x14ff, 0x0408, "Twinhead laptop", VIA_DXS_SRC),
2457         SND_PCI_QUIRK(0x1558, 0x4701, "Clevo D470", VIA_DXS_SRC),
2458         SND_PCI_QUIRK(0x1584, 0x8120, "Diverse Laptop", VIA_DXS_ENABLE),
2459         SND_PCI_QUIRK(0x1584, 0x8123, "Targa/Uniwill", VIA_DXS_NO_VRA),
2460         SND_PCI_QUIRK(0x161f, 0x202b, "Amira Notebook", VIA_DXS_NO_VRA),
2461         SND_PCI_QUIRK(0x161f, 0x2032, "m680x machines", VIA_DXS_48K),
2462         SND_PCI_QUIRK(0x1631, 0xe004, "PB EasyNote 3174", VIA_DXS_ENABLE),
2463         SND_PCI_QUIRK(0x1695, 0x3005, "EPoX EP-8K9A", VIA_DXS_ENABLE),
2464         SND_PCI_QUIRK_VENDOR(0x1695, "EPoX mobo", VIA_DXS_SRC),
2465         SND_PCI_QUIRK_VENDOR(0x16f3, "Jetway K8", VIA_DXS_SRC),
2466         SND_PCI_QUIRK_VENDOR(0x1734, "FSC Laptop", VIA_DXS_SRC),
2467         SND_PCI_QUIRK(0x1849, 0x3059, "ASRock K7VM2", VIA_DXS_NO_VRA),
2468         SND_PCI_QUIRK_VENDOR(0x1849, "ASRock mobo", VIA_DXS_SRC),
2469         SND_PCI_QUIRK(0x1919, 0x200a, "Soltek SL-K8",  VIA_DXS_NO_VRA),
2470         SND_PCI_QUIRK(0x4005, 0x4710, "MSI K7T266", VIA_DXS_SRC),
2471         { } /* terminator */
2472 };
2473
2474 static int __devinit check_dxs_list(struct pci_dev *pci, int revision)
2475 {
2476         const struct snd_pci_quirk *w;
2477
2478         w = snd_pci_quirk_lookup(pci, dxs_whitelist);
2479         if (w) {
2480                 snd_printdd(KERN_INFO "via82xx: DXS white list for %s found\n",
2481                             w->name);
2482                 return w->value;
2483         }
2484
2485         /* for newer revision, default to DXS_SRC */
2486         if (revision >= VIA_REV_8235)
2487                 return VIA_DXS_SRC;
2488
2489         /*
2490          * not detected, try 48k rate only to be sure.
2491          */
2492         printk(KERN_INFO "via82xx: Assuming DXS channels with 48k fixed sample rate.\n");
2493         printk(KERN_INFO "         Please try dxs_support=5 option\n");
2494         printk(KERN_INFO "         and report if it works on your machine.\n");
2495         printk(KERN_INFO "         For more details, read ALSA-Configuration.txt.\n");
2496         return VIA_DXS_48K;
2497 };
2498
2499 static int __devinit snd_via82xx_probe(struct pci_dev *pci,
2500                                        const struct pci_device_id *pci_id)
2501 {
2502         struct snd_card *card;
2503         struct via82xx *chip;
2504         int chip_type = 0, card_type;
2505         unsigned int i;
2506         int err;
2507
2508         err = snd_card_create(index, id, THIS_MODULE, 0, &card);
2509         if (err < 0)
2510                 return err;
2511
2512         card_type = pci_id->driver_data;
2513         switch (card_type) {
2514         case TYPE_CARD_VIA686:
2515                 strcpy(card->driver, "VIA686A");
2516                 sprintf(card->shortname, "VIA 82C686A/B rev%x", pci->revision);
2517                 chip_type = TYPE_VIA686;
2518                 break;
2519         case TYPE_CARD_VIA8233:
2520                 chip_type = TYPE_VIA8233;
2521                 sprintf(card->shortname, "VIA 823x rev%x", pci->revision);
2522                 for (i = 0; i < ARRAY_SIZE(via823x_cards); i++) {
2523                         if (pci->revision == via823x_cards[i].revision) {
2524                                 chip_type = via823x_cards[i].type;
2525                                 strcpy(card->shortname, via823x_cards[i].name);
2526                                 break;
2527                         }
2528                 }
2529                 if (chip_type != TYPE_VIA8233A) {
2530                         if (dxs_support == VIA_DXS_AUTO)
2531                                 dxs_support = check_dxs_list(pci, pci->revision);
2532                         /* force to use VIA8233 or 8233A model according to
2533                          * dxs_support module option
2534                          */
2535                         if (dxs_support == VIA_DXS_DISABLE)
2536                                 chip_type = TYPE_VIA8233A;
2537                         else
2538                                 chip_type = TYPE_VIA8233;
2539                 }
2540                 if (chip_type == TYPE_VIA8233A)
2541                         strcpy(card->driver, "VIA8233A");
2542                 else if (pci->revision >= VIA_REV_8237)
2543                         strcpy(card->driver, "VIA8237"); /* no slog assignment */
2544                 else
2545                         strcpy(card->driver, "VIA8233");
2546                 break;
2547         default:
2548                 snd_printk(KERN_ERR "invalid card type %d\n", card_type);
2549                 err = -EINVAL;
2550                 goto __error;
2551         }
2552                 
2553         if ((err = snd_via82xx_create(card, pci, chip_type, pci->revision,
2554                                       ac97_clock, &chip)) < 0)
2555                 goto __error;
2556         card->private_data = chip;
2557         if ((err = snd_via82xx_mixer_new(chip, ac97_quirk)) < 0)
2558                 goto __error;
2559
2560         if (chip_type == TYPE_VIA686) {
2561                 if ((err = snd_via686_pcm_new(chip)) < 0 ||
2562                     (err = snd_via686_init_misc(chip)) < 0)
2563                         goto __error;
2564         } else {
2565                 if (chip_type == TYPE_VIA8233A) {
2566                         if ((err = snd_via8233a_pcm_new(chip)) < 0)
2567                                 goto __error;
2568                         // chip->dxs_fixed = 1; /* FIXME: use 48k for DXS #3? */
2569                 } else {
2570                         if ((err = snd_via8233_pcm_new(chip)) < 0)
2571                                 goto __error;
2572                         if (dxs_support == VIA_DXS_48K)
2573                                 chip->dxs_fixed = 1;
2574                         else if (dxs_support == VIA_DXS_NO_VRA)
2575                                 chip->no_vra = 1;
2576                         else if (dxs_support == VIA_DXS_SRC) {
2577                                 chip->no_vra = 1;
2578                                 chip->dxs_src = 1;
2579                         }
2580                 }
2581                 if ((err = snd_via8233_init_misc(chip)) < 0)
2582                         goto __error;
2583         }
2584
2585         /* disable interrupts */
2586         for (i = 0; i < chip->num_devs; i++)
2587                 snd_via82xx_channel_reset(chip, &chip->devs[i]);
2588
2589         snprintf(card->longname, sizeof(card->longname),
2590                  "%s with %s at %#lx, irq %d", card->shortname,
2591                  snd_ac97_get_short_name(chip->ac97), chip->port, chip->irq);
2592
2593         snd_via82xx_proc_init(chip);
2594
2595         if ((err = snd_card_register(card)) < 0) {
2596                 snd_card_free(card);
2597                 return err;
2598         }
2599         pci_set_drvdata(pci, card);
2600         return 0;
2601
2602  __error:
2603         snd_card_free(card);
2604         return err;
2605 }
2606
2607 static void __devexit snd_via82xx_remove(struct pci_dev *pci)
2608 {
2609         snd_card_free(pci_get_drvdata(pci));
2610         pci_set_drvdata(pci, NULL);
2611 }
2612
2613 static struct pci_driver driver = {
2614         .name = KBUILD_MODNAME,
2615         .id_table = snd_via82xx_ids,
2616         .probe = snd_via82xx_probe,
2617         .remove = __devexit_p(snd_via82xx_remove),
2618 #ifdef CONFIG_PM
2619         .suspend = snd_via82xx_suspend,
2620         .resume = snd_via82xx_resume,
2621 #endif
2622 };
2623
2624 static int __init alsa_card_via82xx_init(void)
2625 {
2626         return pci_register_driver(&driver);
2627 }
2628
2629 static void __exit alsa_card_via82xx_exit(void)
2630 {
2631         pci_unregister_driver(&driver);
2632 }
2633
2634 module_init(alsa_card_via82xx_init)
2635 module_exit(alsa_card_via82xx_exit)