[ALSA] Change an arugment of snd_mpu401_uart_new() to bit flags
[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@suse.cz>
7  *                         Tjeerd.Mulder <Tjeerd.Mulder@fujitsu-siemens.com>
8  *                    2002 Takashi Iwai <tiwai@suse.de>
9  *
10  *   This program is free software; you can redistribute it and/or modify
11  *   it under the terms of the GNU General Public License as published by
12  *   the Free Software Foundation; either version 2 of the License, or
13  *   (at your option) any later version.
14  *
15  *   This program is distributed in the hope that it will be useful,
16  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
17  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
18  *   GNU General Public License for more details.
19  *
20  *   You should have received a copy of the GNU General Public License
21  *   along with this program; if not, write to the Free Software
22  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
23  *
24  */
25
26 /*
27  * Changes:
28  *
29  * Dec. 19, 2002        Takashi Iwai <tiwai@suse.de>
30  *      - use the DSX channels for the first pcm playback.
31  *        (on VIA8233, 8233C and 8235 only)
32  *        this will allow you play simultaneously up to 4 streams.
33  *        multi-channel playback is assigned to the second device
34  *        on these chips.
35  *      - support the secondary capture (on VIA8233/C,8235)
36  *      - SPDIF support
37  *        the DSX3 channel can be used for SPDIF output.
38  *        on VIA8233A, this channel is assigned to the second pcm
39  *        playback.
40  *        the card config of alsa-lib will assign the correct
41  *        device for applications.
42  *      - clean up the code, separate low-level initialization
43  *        routines for each chipset.
44  *
45  * Sep. 26, 2005        Karsten Wiese <annabellesgarden@yahoo.de>
46  *      - Optimize position calculation for the 823x chips. 
47  */
48
49 #include <sound/driver.h>
50 #include <asm/io.h>
51 #include <linux/delay.h>
52 #include <linux/interrupt.h>
53 #include <linux/init.h>
54 #include <linux/pci.h>
55 #include <linux/slab.h>
56 #include <linux/gameport.h>
57 #include <linux/moduleparam.h>
58 #include <sound/core.h>
59 #include <sound/pcm.h>
60 #include <sound/pcm_params.h>
61 #include <sound/info.h>
62 #include <sound/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@suse.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
89 module_param(index, int, 0444);
90 MODULE_PARM_DESC(index, "Index value for VIA 82xx bridge.");
91 module_param(id, charp, 0444);
92 MODULE_PARM_DESC(id, "ID string for VIA 82xx bridge.");
93 module_param(mpu_port, long, 0444);
94 MODULE_PARM_DESC(mpu_port, "MPU-401 port. (VT82C686x only)");
95 #ifdef SUPPORT_JOYSTICK
96 module_param(joystick, bool, 0444);
97 MODULE_PARM_DESC(joystick, "Enable joystick. (VT82C686x only)");
98 #endif
99 module_param(ac97_clock, int, 0444);
100 MODULE_PARM_DESC(ac97_clock, "AC'97 codec clock (default 48000Hz).");
101 module_param(ac97_quirk, charp, 0444);
102 MODULE_PARM_DESC(ac97_quirk, "AC'97 workaround for strange hardware.");
103 module_param(dxs_support, int, 0444);
104 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)");
105
106 /* just for backward compatibility */
107 static int enable;
108 module_param(enable, bool, 0444);
109
110
111 /* revision numbers for via686 */
112 #define VIA_REV_686_A           0x10
113 #define VIA_REV_686_B           0x11
114 #define VIA_REV_686_C           0x12
115 #define VIA_REV_686_D           0x13
116 #define VIA_REV_686_E           0x14
117 #define VIA_REV_686_H           0x20
118
119 /* revision numbers for via8233 */
120 #define VIA_REV_PRE_8233        0x10    /* not in market */
121 #define VIA_REV_8233C           0x20    /* 2 rec, 4 pb, 1 multi-pb */
122 #define VIA_REV_8233            0x30    /* 2 rec, 4 pb, 1 multi-pb, spdif */
123 #define VIA_REV_8233A           0x40    /* 1 rec, 1 multi-pb, spdf */
124 #define VIA_REV_8235            0x50    /* 2 rec, 4 pb, 1 multi-pb, spdif */
125 #define VIA_REV_8237            0x60
126 #define VIA_REV_8251            0x70
127
128 /*
129  *  Direct registers
130  */
131
132 #define VIAREG(via, x) ((via)->port + VIA_REG_##x)
133 #define VIADEV_REG(viadev, x) ((viadev)->port + VIA_REG_##x)
134
135 /* common offsets */
136 #define VIA_REG_OFFSET_STATUS           0x00    /* byte - channel status */
137 #define   VIA_REG_STAT_ACTIVE           0x80    /* RO */
138 #define   VIA8233_SHADOW_STAT_ACTIVE    0x08    /* RO */
139 #define   VIA_REG_STAT_PAUSED           0x40    /* RO */
140 #define   VIA_REG_STAT_TRIGGER_QUEUED   0x08    /* RO */
141 #define   VIA_REG_STAT_STOPPED          0x04    /* RWC */
142 #define   VIA_REG_STAT_EOL              0x02    /* RWC */
143 #define   VIA_REG_STAT_FLAG             0x01    /* RWC */
144 #define VIA_REG_OFFSET_CONTROL          0x01    /* byte - channel control */
145 #define   VIA_REG_CTRL_START            0x80    /* WO */
146 #define   VIA_REG_CTRL_TERMINATE        0x40    /* WO */
147 #define   VIA_REG_CTRL_AUTOSTART        0x20
148 #define   VIA_REG_CTRL_PAUSE            0x08    /* RW */
149 #define   VIA_REG_CTRL_INT_STOP         0x04            
150 #define   VIA_REG_CTRL_INT_EOL          0x02
151 #define   VIA_REG_CTRL_INT_FLAG         0x01
152 #define   VIA_REG_CTRL_RESET            0x01    /* RW - probably reset? undocumented */
153 #define   VIA_REG_CTRL_INT (VIA_REG_CTRL_INT_FLAG | VIA_REG_CTRL_INT_EOL | VIA_REG_CTRL_AUTOSTART)
154 #define VIA_REG_OFFSET_TYPE             0x02    /* byte - channel type (686 only) */
155 #define   VIA_REG_TYPE_AUTOSTART        0x80    /* RW - autostart at EOL */
156 #define   VIA_REG_TYPE_16BIT            0x20    /* RW */
157 #define   VIA_REG_TYPE_STEREO           0x10    /* RW */
158 #define   VIA_REG_TYPE_INT_LLINE        0x00
159 #define   VIA_REG_TYPE_INT_LSAMPLE      0x04
160 #define   VIA_REG_TYPE_INT_LESSONE      0x08
161 #define   VIA_REG_TYPE_INT_MASK         0x0c
162 #define   VIA_REG_TYPE_INT_EOL          0x02
163 #define   VIA_REG_TYPE_INT_FLAG         0x01
164 #define VIA_REG_OFFSET_TABLE_PTR        0x04    /* dword - channel table pointer */
165 #define VIA_REG_OFFSET_CURR_PTR         0x04    /* dword - channel current pointer */
166 #define VIA_REG_OFFSET_STOP_IDX         0x08    /* dword - stop index, channel type, sample rate */
167 #define   VIA8233_REG_TYPE_16BIT        0x00200000      /* RW */
168 #define   VIA8233_REG_TYPE_STEREO       0x00100000      /* RW */
169 #define VIA_REG_OFFSET_CURR_COUNT       0x0c    /* dword - channel current count (24 bit) */
170 #define VIA_REG_OFFSET_CURR_INDEX       0x0f    /* byte - channel current index (for via8233 only) */
171
172 #define DEFINE_VIA_REGSET(name,val) \
173 enum {\
174         VIA_REG_##name##_STATUS         = (val),\
175         VIA_REG_##name##_CONTROL        = (val) + 0x01,\
176         VIA_REG_##name##_TYPE           = (val) + 0x02,\
177         VIA_REG_##name##_TABLE_PTR      = (val) + 0x04,\
178         VIA_REG_##name##_CURR_PTR       = (val) + 0x04,\
179         VIA_REG_##name##_STOP_IDX       = (val) + 0x08,\
180         VIA_REG_##name##_CURR_COUNT     = (val) + 0x0c,\
181 }
182
183 /* playback block */
184 DEFINE_VIA_REGSET(PLAYBACK, 0x00);
185 DEFINE_VIA_REGSET(CAPTURE, 0x10);
186 DEFINE_VIA_REGSET(FM, 0x20);
187
188 /* AC'97 */
189 #define VIA_REG_AC97                    0x80    /* dword */
190 #define   VIA_REG_AC97_CODEC_ID_MASK    (3<<30)
191 #define   VIA_REG_AC97_CODEC_ID_SHIFT   30
192 #define   VIA_REG_AC97_CODEC_ID_PRIMARY 0x00
193 #define   VIA_REG_AC97_CODEC_ID_SECONDARY 0x01
194 #define   VIA_REG_AC97_SECONDARY_VALID  (1<<27)
195 #define   VIA_REG_AC97_PRIMARY_VALID    (1<<25)
196 #define   VIA_REG_AC97_BUSY             (1<<24)
197 #define   VIA_REG_AC97_READ             (1<<23)
198 #define   VIA_REG_AC97_CMD_SHIFT        16
199 #define   VIA_REG_AC97_CMD_MASK         0x7e
200 #define   VIA_REG_AC97_DATA_SHIFT       0
201 #define   VIA_REG_AC97_DATA_MASK        0xffff
202
203 #define VIA_REG_SGD_SHADOW              0x84    /* dword */
204 /* via686 */
205 #define   VIA_REG_SGD_STAT_PB_FLAG      (1<<0)
206 #define   VIA_REG_SGD_STAT_CP_FLAG      (1<<1)
207 #define   VIA_REG_SGD_STAT_FM_FLAG      (1<<2)
208 #define   VIA_REG_SGD_STAT_PB_EOL       (1<<4)
209 #define   VIA_REG_SGD_STAT_CP_EOL       (1<<5)
210 #define   VIA_REG_SGD_STAT_FM_EOL       (1<<6)
211 #define   VIA_REG_SGD_STAT_PB_STOP      (1<<8)
212 #define   VIA_REG_SGD_STAT_CP_STOP      (1<<9)
213 #define   VIA_REG_SGD_STAT_FM_STOP      (1<<10)
214 #define   VIA_REG_SGD_STAT_PB_ACTIVE    (1<<12)
215 #define   VIA_REG_SGD_STAT_CP_ACTIVE    (1<<13)
216 #define   VIA_REG_SGD_STAT_FM_ACTIVE    (1<<14)
217 /* via8233 */
218 #define   VIA8233_REG_SGD_STAT_FLAG     (1<<0)
219 #define   VIA8233_REG_SGD_STAT_EOL      (1<<1)
220 #define   VIA8233_REG_SGD_STAT_STOP     (1<<2)
221 #define   VIA8233_REG_SGD_STAT_ACTIVE   (1<<3)
222 #define VIA8233_INTR_MASK(chan) ((VIA8233_REG_SGD_STAT_FLAG|VIA8233_REG_SGD_STAT_EOL) << ((chan) * 4))
223 #define   VIA8233_REG_SGD_CHAN_SDX      0
224 #define   VIA8233_REG_SGD_CHAN_MULTI    4
225 #define   VIA8233_REG_SGD_CHAN_REC      6
226 #define   VIA8233_REG_SGD_CHAN_REC1     7
227
228 #define VIA_REG_GPI_STATUS              0x88
229 #define VIA_REG_GPI_INTR                0x8c
230
231 /* multi-channel and capture registers for via8233 */
232 DEFINE_VIA_REGSET(MULTPLAY, 0x40);
233 DEFINE_VIA_REGSET(CAPTURE_8233, 0x60);
234
235 /* via8233-specific registers */
236 #define VIA_REG_OFS_PLAYBACK_VOLUME_L   0x02    /* byte */
237 #define VIA_REG_OFS_PLAYBACK_VOLUME_R   0x03    /* byte */
238 #define VIA_REG_OFS_MULTPLAY_FORMAT     0x02    /* byte - format and channels */
239 #define   VIA_REG_MULTPLAY_FMT_8BIT     0x00
240 #define   VIA_REG_MULTPLAY_FMT_16BIT    0x80
241 #define   VIA_REG_MULTPLAY_FMT_CH_MASK  0x70    /* # channels << 4 (valid = 1,2,4,6) */
242 #define VIA_REG_OFS_CAPTURE_FIFO        0x02    /* byte - bit 6 = fifo  enable */
243 #define   VIA_REG_CAPTURE_FIFO_ENABLE   0x40
244
245 #define VIA_DXS_MAX_VOLUME              31      /* max. volume (attenuation) of reg 0x32/33 */
246
247 #define VIA_REG_CAPTURE_CHANNEL         0x63    /* byte - input select */
248 #define   VIA_REG_CAPTURE_CHANNEL_MIC   0x4
249 #define   VIA_REG_CAPTURE_CHANNEL_LINE  0
250 #define   VIA_REG_CAPTURE_SELECT_CODEC  0x03    /* recording source codec (0 = primary) */
251
252 #define VIA_TBL_BIT_FLAG        0x40000000
253 #define VIA_TBL_BIT_EOL         0x80000000
254
255 /* pci space */
256 #define VIA_ACLINK_STAT         0x40
257 #define  VIA_ACLINK_C11_READY   0x20
258 #define  VIA_ACLINK_C10_READY   0x10
259 #define  VIA_ACLINK_C01_READY   0x04 /* secondary codec ready */
260 #define  VIA_ACLINK_LOWPOWER    0x02 /* low-power state */
261 #define  VIA_ACLINK_C00_READY   0x01 /* primary codec ready */
262 #define VIA_ACLINK_CTRL         0x41
263 #define  VIA_ACLINK_CTRL_ENABLE 0x80 /* 0: disable, 1: enable */
264 #define  VIA_ACLINK_CTRL_RESET  0x40 /* 0: assert, 1: de-assert */
265 #define  VIA_ACLINK_CTRL_SYNC   0x20 /* 0: release SYNC, 1: force SYNC hi */
266 #define  VIA_ACLINK_CTRL_SDO    0x10 /* 0: release SDO, 1: force SDO hi */
267 #define  VIA_ACLINK_CTRL_VRA    0x08 /* 0: disable VRA, 1: enable VRA */
268 #define  VIA_ACLINK_CTRL_PCM    0x04 /* 0: disable PCM, 1: enable PCM */
269 #define  VIA_ACLINK_CTRL_FM     0x02 /* via686 only */
270 #define  VIA_ACLINK_CTRL_SB     0x01 /* via686 only */
271 #define  VIA_ACLINK_CTRL_INIT   (VIA_ACLINK_CTRL_ENABLE|\
272                                  VIA_ACLINK_CTRL_RESET|\
273                                  VIA_ACLINK_CTRL_PCM|\
274                                  VIA_ACLINK_CTRL_VRA)
275 #define VIA_FUNC_ENABLE         0x42
276 #define  VIA_FUNC_MIDI_PNP      0x80 /* FIXME: it's 0x40 in the datasheet! */
277 #define  VIA_FUNC_MIDI_IRQMASK  0x40 /* FIXME: not documented! */
278 #define  VIA_FUNC_RX2C_WRITE    0x20
279 #define  VIA_FUNC_SB_FIFO_EMPTY 0x10
280 #define  VIA_FUNC_ENABLE_GAME   0x08
281 #define  VIA_FUNC_ENABLE_FM     0x04
282 #define  VIA_FUNC_ENABLE_MIDI   0x02
283 #define  VIA_FUNC_ENABLE_SB     0x01
284 #define VIA_PNP_CONTROL         0x43
285 #define VIA_FM_NMI_CTRL         0x48
286 #define VIA8233_VOLCHG_CTRL     0x48
287 #define VIA8233_SPDIF_CTRL      0x49
288 #define  VIA8233_SPDIF_DX3      0x08
289 #define  VIA8233_SPDIF_SLOT_MASK        0x03
290 #define  VIA8233_SPDIF_SLOT_1011        0x00
291 #define  VIA8233_SPDIF_SLOT_34          0x01
292 #define  VIA8233_SPDIF_SLOT_78          0x02
293 #define  VIA8233_SPDIF_SLOT_69          0x03
294
295 /*
296  */
297
298 #define VIA_DXS_AUTO    0
299 #define VIA_DXS_ENABLE  1
300 #define VIA_DXS_DISABLE 2
301 #define VIA_DXS_48K     3
302 #define VIA_DXS_NO_VRA  4
303 #define VIA_DXS_SRC     5
304
305
306 /*
307  * pcm stream
308  */
309
310 struct snd_via_sg_table {
311         unsigned int offset;
312         unsigned int size;
313 } ;
314
315 #define VIA_TABLE_SIZE  255
316
317 struct viadev {
318         unsigned int reg_offset;
319         unsigned long port;
320         int direction;  /* playback = 0, capture = 1 */
321         struct snd_pcm_substream *substream;
322         int running;
323         unsigned int tbl_entries; /* # descriptors */
324         struct snd_dma_buffer table;
325         struct snd_via_sg_table *idx_table;
326         /* for recovery from the unexpected pointer */
327         unsigned int lastpos;
328         unsigned int fragsize;
329         unsigned int bufsize;
330         unsigned int bufsize2;
331         int hwptr_done;         /* processed frame position in the buffer */
332         int in_interrupt;
333         int shadow_shift;
334 };
335
336
337 enum { TYPE_CARD_VIA686 = 1, TYPE_CARD_VIA8233 };
338 enum { TYPE_VIA686, TYPE_VIA8233, TYPE_VIA8233A };
339
340 #define VIA_MAX_DEVS    7       /* 4 playback, 1 multi, 2 capture */
341
342 struct via_rate_lock {
343         spinlock_t lock;
344         int rate;
345         int used;
346 };
347
348 struct via82xx {
349         int irq;
350
351         unsigned long port;
352         struct resource *mpu_res;
353         int chip_type;
354         unsigned char revision;
355
356         unsigned char old_legacy;
357         unsigned char old_legacy_cfg;
358 #ifdef CONFIG_PM
359         unsigned char legacy_saved;
360         unsigned char legacy_cfg_saved;
361         unsigned char spdif_ctrl_saved;
362         unsigned char capture_src_saved[2];
363         unsigned int mpu_port_saved;
364 #endif
365
366         unsigned char playback_volume[4][2]; /* for VIA8233/C/8235; default = 0 */
367         unsigned char playback_volume_c[2]; /* for VIA8233/C/8235; default = 0 */
368
369         unsigned int intr_mask; /* SGD_SHADOW mask to check interrupts */
370
371         struct pci_dev *pci;
372         struct snd_card *card;
373
374         unsigned int num_devs;
375         unsigned int playback_devno, multi_devno, capture_devno;
376         struct viadev devs[VIA_MAX_DEVS];
377         struct via_rate_lock rates[2]; /* playback and capture */
378         unsigned int dxs_fixed: 1;      /* DXS channel accepts only 48kHz */
379         unsigned int no_vra: 1;         /* no need to set VRA on DXS channels */
380         unsigned int dxs_src: 1;        /* use full SRC capabilities of DXS */
381         unsigned int spdif_on: 1;       /* only spdif rates work to external DACs */
382
383         struct snd_pcm *pcms[2];
384         struct snd_rawmidi *rmidi;
385
386         struct snd_ac97_bus *ac97_bus;
387         struct snd_ac97 *ac97;
388         unsigned int ac97_clock;
389         unsigned int ac97_secondary;    /* secondary AC'97 codec is present */
390
391         spinlock_t reg_lock;
392         struct snd_info_entry *proc_entry;
393
394 #ifdef SUPPORT_JOYSTICK
395         struct gameport *gameport;
396 #endif
397 };
398
399 static struct pci_device_id snd_via82xx_ids[] __devinitdata = {
400         /* 0x1106, 0x3058 */
401         { PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686_5, PCI_ANY_ID, PCI_ANY_ID, 0, 0, TYPE_CARD_VIA686, },     /* 686A */
402         /* 0x1106, 0x3059 */
403         { PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8233_5, PCI_ANY_ID, PCI_ANY_ID, 0, 0, TYPE_CARD_VIA8233, },      /* VT8233 */
404         { 0, }
405 };
406
407 MODULE_DEVICE_TABLE(pci, snd_via82xx_ids);
408
409 /*
410  */
411
412 /*
413  * allocate and initialize the descriptor buffers
414  * periods = number of periods
415  * fragsize = period size in bytes
416  */
417 static int build_via_table(struct viadev *dev, struct snd_pcm_substream *substream,
418                            struct pci_dev *pci,
419                            unsigned int periods, unsigned int fragsize)
420 {
421         unsigned int i, idx, ofs, rest;
422         struct via82xx *chip = snd_pcm_substream_chip(substream);
423         struct snd_sg_buf *sgbuf = snd_pcm_substream_sgbuf(substream);
424
425         if (dev->table.area == NULL) {
426                 /* the start of each lists must be aligned to 8 bytes,
427                  * but the kernel pages are much bigger, so we don't care
428                  */
429                 if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(chip->pci),
430                                         PAGE_ALIGN(VIA_TABLE_SIZE * 2 * 8),
431                                         &dev->table) < 0)
432                         return -ENOMEM;
433         }
434         if (! dev->idx_table) {
435                 dev->idx_table = kmalloc(sizeof(*dev->idx_table) * VIA_TABLE_SIZE, GFP_KERNEL);
436                 if (! dev->idx_table)
437                         return -ENOMEM;
438         }
439
440         /* fill the entries */
441         idx = 0;
442         ofs = 0;
443         for (i = 0; i < periods; i++) {
444                 rest = fragsize;
445                 /* fill descriptors for a period.
446                  * a period can be split to several descriptors if it's
447                  * over page boundary.
448                  */
449                 do {
450                         unsigned int r;
451                         unsigned int flag;
452
453                         if (idx >= VIA_TABLE_SIZE) {
454                                 snd_printk(KERN_ERR "via82xx: too much table size!\n");
455                                 return -EINVAL;
456                         }
457                         ((u32 *)dev->table.area)[idx << 1] = cpu_to_le32((u32)snd_pcm_sgbuf_get_addr(sgbuf, ofs));
458                         r = PAGE_SIZE - (ofs % PAGE_SIZE);
459                         if (rest < r)
460                                 r = rest;
461                         rest -= r;
462                         if (! rest) {
463                                 if (i == periods - 1)
464                                         flag = VIA_TBL_BIT_EOL; /* buffer boundary */
465                                 else
466                                         flag = VIA_TBL_BIT_FLAG; /* period boundary */
467                         } else
468                                 flag = 0; /* period continues to the next */
469                         // printk("via: tbl %d: at %d  size %d (rest %d)\n", idx, ofs, r, rest);
470                         ((u32 *)dev->table.area)[(idx<<1) + 1] = cpu_to_le32(r | flag);
471                         dev->idx_table[idx].offset = ofs;
472                         dev->idx_table[idx].size = r;
473                         ofs += r;
474                         idx++;
475                 } while (rest > 0);
476         }
477         dev->tbl_entries = idx;
478         dev->bufsize = periods * fragsize;
479         dev->bufsize2 = dev->bufsize / 2;
480         dev->fragsize = fragsize;
481         return 0;
482 }
483
484
485 static int clean_via_table(struct viadev *dev, struct snd_pcm_substream *substream,
486                            struct pci_dev *pci)
487 {
488         if (dev->table.area) {
489                 snd_dma_free_pages(&dev->table);
490                 dev->table.area = NULL;
491         }
492         kfree(dev->idx_table);
493         dev->idx_table = NULL;
494         return 0;
495 }
496
497 /*
498  *  Basic I/O
499  */
500
501 static inline unsigned int snd_via82xx_codec_xread(struct via82xx *chip)
502 {
503         return inl(VIAREG(chip, AC97));
504 }
505  
506 static inline void snd_via82xx_codec_xwrite(struct via82xx *chip, unsigned int val)
507 {
508         outl(val, VIAREG(chip, AC97));
509 }
510  
511 static int snd_via82xx_codec_ready(struct via82xx *chip, int secondary)
512 {
513         unsigned int timeout = 1000;    /* 1ms */
514         unsigned int val;
515         
516         while (timeout-- > 0) {
517                 udelay(1);
518                 if (!((val = snd_via82xx_codec_xread(chip)) & VIA_REG_AC97_BUSY))
519                         return val & 0xffff;
520         }
521         snd_printk(KERN_ERR "codec_ready: codec %i is not ready [0x%x]\n",
522                    secondary, snd_via82xx_codec_xread(chip));
523         return -EIO;
524 }
525  
526 static int snd_via82xx_codec_valid(struct via82xx *chip, int secondary)
527 {
528         unsigned int timeout = 1000;    /* 1ms */
529         unsigned int val, val1;
530         unsigned int stat = !secondary ? VIA_REG_AC97_PRIMARY_VALID :
531                                          VIA_REG_AC97_SECONDARY_VALID;
532         
533         while (timeout-- > 0) {
534                 val = snd_via82xx_codec_xread(chip);
535                 val1 = val & (VIA_REG_AC97_BUSY | stat);
536                 if (val1 == stat)
537                         return val & 0xffff;
538                 udelay(1);
539         }
540         return -EIO;
541 }
542  
543 static void snd_via82xx_codec_wait(struct snd_ac97 *ac97)
544 {
545         struct via82xx *chip = ac97->private_data;
546         int err;
547         err = snd_via82xx_codec_ready(chip, ac97->num);
548         /* here we need to wait fairly for long time.. */
549         msleep(500);
550 }
551
552 static void snd_via82xx_codec_write(struct snd_ac97 *ac97,
553                                     unsigned short reg,
554                                     unsigned short val)
555 {
556         struct via82xx *chip = ac97->private_data;
557         unsigned int xval;
558
559         xval = !ac97->num ? VIA_REG_AC97_CODEC_ID_PRIMARY : VIA_REG_AC97_CODEC_ID_SECONDARY;
560         xval <<= VIA_REG_AC97_CODEC_ID_SHIFT;
561         xval |= reg << VIA_REG_AC97_CMD_SHIFT;
562         xval |= val << VIA_REG_AC97_DATA_SHIFT;
563         snd_via82xx_codec_xwrite(chip, xval);
564         snd_via82xx_codec_ready(chip, ac97->num);
565 }
566
567 static unsigned short snd_via82xx_codec_read(struct snd_ac97 *ac97, unsigned short reg)
568 {
569         struct via82xx *chip = ac97->private_data;
570         unsigned int xval, val = 0xffff;
571         int again = 0;
572
573         xval = ac97->num << VIA_REG_AC97_CODEC_ID_SHIFT;
574         xval |= ac97->num ? VIA_REG_AC97_SECONDARY_VALID : VIA_REG_AC97_PRIMARY_VALID;
575         xval |= VIA_REG_AC97_READ;
576         xval |= (reg & 0x7f) << VIA_REG_AC97_CMD_SHIFT;
577         while (1) {
578                 if (again++ > 3) {
579                         snd_printk(KERN_ERR "codec_read: codec %i is not valid [0x%x]\n",
580                                    ac97->num, snd_via82xx_codec_xread(chip));
581                         return 0xffff;
582                 }
583                 snd_via82xx_codec_xwrite(chip, xval);
584                 udelay (20);
585                 if (snd_via82xx_codec_valid(chip, ac97->num) >= 0) {
586                         udelay(25);
587                         val = snd_via82xx_codec_xread(chip);
588                         break;
589                 }
590         }
591         return val & 0xffff;
592 }
593
594 static void snd_via82xx_channel_reset(struct via82xx *chip, struct viadev *viadev)
595 {
596         outb(VIA_REG_CTRL_PAUSE | VIA_REG_CTRL_TERMINATE | VIA_REG_CTRL_RESET,
597              VIADEV_REG(viadev, OFFSET_CONTROL));
598         inb(VIADEV_REG(viadev, OFFSET_CONTROL));
599         udelay(50);
600         /* disable interrupts */
601         outb(0x00, VIADEV_REG(viadev, OFFSET_CONTROL));
602         /* clear interrupts */
603         outb(0x03, VIADEV_REG(viadev, OFFSET_STATUS));
604         outb(0x00, VIADEV_REG(viadev, OFFSET_TYPE)); /* for via686 */
605         // outl(0, VIADEV_REG(viadev, OFFSET_CURR_PTR));
606         viadev->lastpos = 0;
607         viadev->hwptr_done = 0;
608 }
609
610
611 /*
612  *  Interrupt handler
613  *  Used for 686 and 8233A
614  */
615 static irqreturn_t snd_via686_interrupt(int irq, void *dev_id, struct pt_regs *regs)
616 {
617         struct via82xx *chip = dev_id;
618         unsigned int status;
619         unsigned int i;
620
621         status = inl(VIAREG(chip, SGD_SHADOW));
622         if (! (status & chip->intr_mask)) {
623                 if (chip->rmidi)
624                         /* check mpu401 interrupt */
625                         return snd_mpu401_uart_interrupt(irq, chip->rmidi->private_data, regs);
626                 return IRQ_NONE;
627         }
628
629         /* check status for each stream */
630         spin_lock(&chip->reg_lock);
631         for (i = 0; i < chip->num_devs; i++) {
632                 struct viadev *viadev = &chip->devs[i];
633                 unsigned char c_status = inb(VIADEV_REG(viadev, OFFSET_STATUS));
634                 if (! (c_status & (VIA_REG_STAT_EOL|VIA_REG_STAT_FLAG|VIA_REG_STAT_STOPPED)))
635                         continue;
636                 if (viadev->substream && viadev->running) {
637                         /*
638                          * Update hwptr_done based on 'period elapsed'
639                          * interrupts. We'll use it, when the chip returns 0 
640                          * for OFFSET_CURR_COUNT.
641                          */
642                         if (c_status & VIA_REG_STAT_EOL)
643                                 viadev->hwptr_done = 0;
644                         else
645                                 viadev->hwptr_done += viadev->fragsize;
646                         viadev->in_interrupt = c_status;
647                         spin_unlock(&chip->reg_lock);
648                         snd_pcm_period_elapsed(viadev->substream);
649                         spin_lock(&chip->reg_lock);
650                         viadev->in_interrupt = 0;
651                 }
652                 outb(c_status, VIADEV_REG(viadev, OFFSET_STATUS)); /* ack */
653         }
654         spin_unlock(&chip->reg_lock);
655         return IRQ_HANDLED;
656 }
657
658 /*
659  *  Interrupt handler
660  */
661 static irqreturn_t snd_via8233_interrupt(int irq, void *dev_id, struct pt_regs *regs)
662 {
663         struct via82xx *chip = dev_id;
664         unsigned int status;
665         unsigned int i;
666         int irqreturn = 0;
667
668         /* check status for each stream */
669         spin_lock(&chip->reg_lock);
670         status = inl(VIAREG(chip, SGD_SHADOW));
671
672         for (i = 0; i < chip->num_devs; i++) {
673                 struct viadev *viadev = &chip->devs[i];
674                 struct snd_pcm_substream *substream;
675                 unsigned char c_status, shadow_status;
676
677                 shadow_status = (status >> viadev->shadow_shift) &
678                         (VIA8233_SHADOW_STAT_ACTIVE|VIA_REG_STAT_EOL|
679                          VIA_REG_STAT_FLAG);
680                 c_status = shadow_status & (VIA_REG_STAT_EOL|VIA_REG_STAT_FLAG);
681                 if (!c_status)
682                         continue;
683
684                 substream = viadev->substream;
685                 if (substream && viadev->running) {
686                         /*
687                          * Update hwptr_done based on 'period elapsed'
688                          * interrupts. We'll use it, when the chip returns 0 
689                          * for OFFSET_CURR_COUNT.
690                          */
691                         if (c_status & VIA_REG_STAT_EOL)
692                                 viadev->hwptr_done = 0;
693                         else
694                                 viadev->hwptr_done += viadev->fragsize;
695                         viadev->in_interrupt = c_status;
696                         if (shadow_status & VIA8233_SHADOW_STAT_ACTIVE)
697                                 viadev->in_interrupt |= VIA_REG_STAT_ACTIVE;
698                         spin_unlock(&chip->reg_lock);
699
700                         snd_pcm_period_elapsed(substream);
701
702                         spin_lock(&chip->reg_lock);
703                         viadev->in_interrupt = 0;
704                 }
705                 outb(c_status, VIADEV_REG(viadev, OFFSET_STATUS)); /* ack */
706                 irqreturn = 1;
707         }
708         spin_unlock(&chip->reg_lock);
709         return IRQ_RETVAL(irqreturn);
710 }
711
712 /*
713  *  PCM callbacks
714  */
715
716 /*
717  * trigger callback
718  */
719 static int snd_via82xx_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
720 {
721         struct via82xx *chip = snd_pcm_substream_chip(substream);
722         struct viadev *viadev = substream->runtime->private_data;
723         unsigned char val;
724
725         if (chip->chip_type != TYPE_VIA686)
726                 val = VIA_REG_CTRL_INT;
727         else
728                 val = 0;
729         switch (cmd) {
730         case SNDRV_PCM_TRIGGER_START:
731         case SNDRV_PCM_TRIGGER_RESUME:
732                 val |= VIA_REG_CTRL_START;
733                 viadev->running = 1;
734                 break;
735         case SNDRV_PCM_TRIGGER_STOP:
736         case SNDRV_PCM_TRIGGER_SUSPEND:
737                 val = VIA_REG_CTRL_TERMINATE;
738                 viadev->running = 0;
739                 break;
740         case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
741                 val |= VIA_REG_CTRL_PAUSE;
742                 viadev->running = 0;
743                 break;
744         case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
745                 viadev->running = 1;
746                 break;
747         default:
748                 return -EINVAL;
749         }
750         outb(val, VIADEV_REG(viadev, OFFSET_CONTROL));
751         if (cmd == SNDRV_PCM_TRIGGER_STOP)
752                 snd_via82xx_channel_reset(chip, viadev);
753         return 0;
754 }
755
756
757 /*
758  * pointer callbacks
759  */
760
761 /*
762  * calculate the linear position at the given sg-buffer index and the rest count
763  */
764
765 #define check_invalid_pos(viadev,pos) \
766         ((pos) < viadev->lastpos && ((pos) >= viadev->bufsize2 ||\
767                                      viadev->lastpos < viadev->bufsize2))
768
769 static inline unsigned int calc_linear_pos(struct viadev *viadev, unsigned int idx,
770                                            unsigned int count)
771 {
772         unsigned int size, base, res;
773
774         size = viadev->idx_table[idx].size;
775         base = viadev->idx_table[idx].offset;
776         res = base + size - count;
777         if (res >= viadev->bufsize)
778                 res -= viadev->bufsize;
779
780         /* check the validity of the calculated position */
781         if (size < count) {
782                 snd_printd(KERN_ERR "invalid via82xx_cur_ptr (size = %d, count = %d)\n",
783                            (int)size, (int)count);
784                 res = viadev->lastpos;
785         } else {
786                 if (! count) {
787                         /* Some mobos report count = 0 on the DMA boundary,
788                          * i.e. count = size indeed.
789                          * Let's check whether this step is above the expected size.
790                          */
791                         int delta = res - viadev->lastpos;
792                         if (delta < 0)
793                                 delta += viadev->bufsize;
794                         if ((unsigned int)delta > viadev->fragsize)
795                                 res = base;
796                 }
797                 if (check_invalid_pos(viadev, res)) {
798 #ifdef POINTER_DEBUG
799                         printk(KERN_DEBUG "fail: idx = %i/%i, lastpos = 0x%x, "
800                                "bufsize2 = 0x%x, offsize = 0x%x, size = 0x%x, "
801                                "count = 0x%x\n", idx, viadev->tbl_entries,
802                                viadev->lastpos, viadev->bufsize2,
803                                viadev->idx_table[idx].offset,
804                                viadev->idx_table[idx].size, count);
805 #endif
806                         /* count register returns full size when end of buffer is reached */
807                         res = base + size;
808                         if (check_invalid_pos(viadev, res)) {
809                                 snd_printd(KERN_ERR "invalid via82xx_cur_ptr (2), "
810                                            "using last valid pointer\n");
811                                 res = viadev->lastpos;
812                         }
813                 }
814         }
815         return res;
816 }
817
818 /*
819  * get the current pointer on via686
820  */
821 static snd_pcm_uframes_t snd_via686_pcm_pointer(struct snd_pcm_substream *substream)
822 {
823         struct via82xx *chip = snd_pcm_substream_chip(substream);
824         struct viadev *viadev = substream->runtime->private_data;
825         unsigned int idx, ptr, count, res;
826
827         snd_assert(viadev->tbl_entries, return 0);
828         if (!(inb(VIADEV_REG(viadev, OFFSET_STATUS)) & VIA_REG_STAT_ACTIVE))
829                 return 0;
830
831         spin_lock(&chip->reg_lock);
832         count = inl(VIADEV_REG(viadev, OFFSET_CURR_COUNT)) & 0xffffff;
833         /* The via686a does not have the current index register,
834          * so we need to calculate the index from CURR_PTR.
835          */
836         ptr = inl(VIADEV_REG(viadev, OFFSET_CURR_PTR));
837         if (ptr <= (unsigned int)viadev->table.addr)
838                 idx = 0;
839         else /* CURR_PTR holds the address + 8 */
840                 idx = ((ptr - (unsigned int)viadev->table.addr) / 8 - 1) % viadev->tbl_entries;
841         res = calc_linear_pos(viadev, idx, count);
842         viadev->lastpos = res; /* remember the last position */
843         spin_unlock(&chip->reg_lock);
844
845         return bytes_to_frames(substream->runtime, res);
846 }
847
848 /*
849  * get the current pointer on via823x
850  */
851 static snd_pcm_uframes_t snd_via8233_pcm_pointer(struct snd_pcm_substream *substream)
852 {
853         struct via82xx *chip = snd_pcm_substream_chip(substream);
854         struct viadev *viadev = substream->runtime->private_data;
855         unsigned int idx, count, res;
856         int status;
857         
858         snd_assert(viadev->tbl_entries, return 0);
859
860         spin_lock(&chip->reg_lock);
861         count = inl(VIADEV_REG(viadev, OFFSET_CURR_COUNT));
862         status = viadev->in_interrupt;
863         if (!status)
864                 status = inb(VIADEV_REG(viadev, OFFSET_STATUS));
865
866         /* An apparent bug in the 8251 is worked around by sending a 
867          * REG_CTRL_START. */
868         if (chip->revision == VIA_REV_8251 && (status & VIA_REG_STAT_EOL))
869                 snd_via82xx_pcm_trigger(substream, SNDRV_PCM_TRIGGER_START);
870
871         if (!(status & VIA_REG_STAT_ACTIVE)) {
872                 res = 0;
873                 goto unlock;
874         }
875         if (count & 0xffffff) {
876                 idx = count >> 24;
877                 if (idx >= viadev->tbl_entries) {
878 #ifdef POINTER_DEBUG
879                         printk(KERN_DEBUG "fail: invalid idx = %i/%i\n", idx,
880                                viadev->tbl_entries);
881 #endif
882                         res = viadev->lastpos;
883                 } else {
884                         count &= 0xffffff;
885                         res = calc_linear_pos(viadev, idx, count);
886                 }
887         } else {
888                 res = viadev->hwptr_done;
889                 if (!viadev->in_interrupt) {
890                         if (status & VIA_REG_STAT_EOL) {
891                                 res = 0;
892                         } else
893                                 if (status & VIA_REG_STAT_FLAG) {
894                                         res += viadev->fragsize;
895                                 }
896                 }
897         }                           
898 unlock:
899         viadev->lastpos = res;
900         spin_unlock(&chip->reg_lock);
901
902         return bytes_to_frames(substream->runtime, res);
903 }
904
905
906 /*
907  * hw_params callback:
908  * allocate the buffer and build up the buffer description table
909  */
910 static int snd_via82xx_hw_params(struct snd_pcm_substream *substream,
911                                  struct snd_pcm_hw_params *hw_params)
912 {
913         struct via82xx *chip = snd_pcm_substream_chip(substream);
914         struct viadev *viadev = substream->runtime->private_data;
915         int err;
916
917         err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
918         if (err < 0)
919                 return err;
920         err = build_via_table(viadev, substream, chip->pci,
921                               params_periods(hw_params),
922                               params_period_bytes(hw_params));
923         if (err < 0)
924                 return err;
925
926         return 0;
927 }
928
929 /*
930  * hw_free callback:
931  * clean up the buffer description table and release the buffer
932  */
933 static int snd_via82xx_hw_free(struct snd_pcm_substream *substream)
934 {
935         struct via82xx *chip = snd_pcm_substream_chip(substream);
936         struct viadev *viadev = substream->runtime->private_data;
937
938         clean_via_table(viadev, substream, chip->pci);
939         snd_pcm_lib_free_pages(substream);
940         return 0;
941 }
942
943
944 /*
945  * set up the table pointer
946  */
947 static void snd_via82xx_set_table_ptr(struct via82xx *chip, struct viadev *viadev)
948 {
949         snd_via82xx_codec_ready(chip, 0);
950         outl((u32)viadev->table.addr, VIADEV_REG(viadev, OFFSET_TABLE_PTR));
951         udelay(20);
952         snd_via82xx_codec_ready(chip, 0);
953 }
954
955 /*
956  * prepare callback for playback and capture on via686
957  */
958 static void via686_setup_format(struct via82xx *chip, struct viadev *viadev,
959                                 struct snd_pcm_runtime *runtime)
960 {
961         snd_via82xx_channel_reset(chip, viadev);
962         /* this must be set after channel_reset */
963         snd_via82xx_set_table_ptr(chip, viadev);
964         outb(VIA_REG_TYPE_AUTOSTART |
965              (runtime->format == SNDRV_PCM_FORMAT_S16_LE ? VIA_REG_TYPE_16BIT : 0) |
966              (runtime->channels > 1 ? VIA_REG_TYPE_STEREO : 0) |
967              ((viadev->reg_offset & 0x10) == 0 ? VIA_REG_TYPE_INT_LSAMPLE : 0) |
968              VIA_REG_TYPE_INT_EOL |
969              VIA_REG_TYPE_INT_FLAG, VIADEV_REG(viadev, OFFSET_TYPE));
970 }
971
972 static int snd_via686_playback_prepare(struct snd_pcm_substream *substream)
973 {
974         struct via82xx *chip = snd_pcm_substream_chip(substream);
975         struct viadev *viadev = substream->runtime->private_data;
976         struct snd_pcm_runtime *runtime = substream->runtime;
977
978         snd_ac97_set_rate(chip->ac97, AC97_PCM_FRONT_DAC_RATE, runtime->rate);
979         snd_ac97_set_rate(chip->ac97, AC97_SPDIF, runtime->rate);
980         via686_setup_format(chip, viadev, runtime);
981         return 0;
982 }
983
984 static int snd_via686_capture_prepare(struct snd_pcm_substream *substream)
985 {
986         struct via82xx *chip = snd_pcm_substream_chip(substream);
987         struct viadev *viadev = substream->runtime->private_data;
988         struct snd_pcm_runtime *runtime = substream->runtime;
989
990         snd_ac97_set_rate(chip->ac97, AC97_PCM_LR_ADC_RATE, runtime->rate);
991         via686_setup_format(chip, viadev, runtime);
992         return 0;
993 }
994
995 /*
996  * lock the current rate
997  */
998 static int via_lock_rate(struct via_rate_lock *rec, int rate)
999 {
1000         int changed = 0;
1001
1002         spin_lock_irq(&rec->lock);
1003         if (rec->rate != rate) {
1004                 if (rec->rate && rec->used > 1) /* already set */
1005                         changed = -EINVAL;
1006                 else {
1007                         rec->rate = rate;
1008                         changed = 1;
1009                 }
1010         }
1011         spin_unlock_irq(&rec->lock);
1012         return changed;
1013 }
1014
1015 /*
1016  * prepare callback for DSX playback on via823x
1017  */
1018 static int snd_via8233_playback_prepare(struct snd_pcm_substream *substream)
1019 {
1020         struct via82xx *chip = snd_pcm_substream_chip(substream);
1021         struct viadev *viadev = substream->runtime->private_data;
1022         struct snd_pcm_runtime *runtime = substream->runtime;
1023         int ac97_rate = chip->dxs_src ? 48000 : runtime->rate;
1024         int rate_changed;
1025         u32 rbits;
1026
1027         if ((rate_changed = via_lock_rate(&chip->rates[0], ac97_rate)) < 0)
1028                 return rate_changed;
1029         if (rate_changed)
1030                 snd_ac97_set_rate(chip->ac97, AC97_PCM_FRONT_DAC_RATE,
1031                                   chip->no_vra ? 48000 : runtime->rate);
1032         if (chip->spdif_on && viadev->reg_offset == 0x30)
1033                 snd_ac97_set_rate(chip->ac97, AC97_SPDIF, runtime->rate);
1034
1035         if (runtime->rate == 48000)
1036                 rbits = 0xfffff;
1037         else
1038                 rbits = (0x100000 / 48000) * runtime->rate +
1039                         ((0x100000 % 48000) * runtime->rate) / 48000;
1040         snd_assert((rbits & ~0xfffff) == 0, return -EINVAL);
1041         snd_via82xx_channel_reset(chip, viadev);
1042         snd_via82xx_set_table_ptr(chip, viadev);
1043         outb(chip->playback_volume[viadev->reg_offset / 0x10][0],
1044              VIADEV_REG(viadev, OFS_PLAYBACK_VOLUME_L));
1045         outb(chip->playback_volume[viadev->reg_offset / 0x10][1],
1046              VIADEV_REG(viadev, OFS_PLAYBACK_VOLUME_R));
1047         outl((runtime->format == SNDRV_PCM_FORMAT_S16_LE ? VIA8233_REG_TYPE_16BIT : 0) | /* format */
1048              (runtime->channels > 1 ? VIA8233_REG_TYPE_STEREO : 0) | /* stereo */
1049              rbits | /* rate */
1050              0xff000000,    /* STOP index is never reached */
1051              VIADEV_REG(viadev, OFFSET_STOP_IDX));
1052         udelay(20);
1053         snd_via82xx_codec_ready(chip, 0);
1054         return 0;
1055 }
1056
1057 /*
1058  * prepare callback for multi-channel playback on via823x
1059  */
1060 static int snd_via8233_multi_prepare(struct snd_pcm_substream *substream)
1061 {
1062         struct via82xx *chip = snd_pcm_substream_chip(substream);
1063         struct viadev *viadev = substream->runtime->private_data;
1064         struct snd_pcm_runtime *runtime = substream->runtime;
1065         unsigned int slots;
1066         int fmt;
1067
1068         if (via_lock_rate(&chip->rates[0], runtime->rate) < 0)
1069                 return -EINVAL;
1070         snd_ac97_set_rate(chip->ac97, AC97_PCM_FRONT_DAC_RATE, runtime->rate);
1071         snd_ac97_set_rate(chip->ac97, AC97_PCM_SURR_DAC_RATE, runtime->rate);
1072         snd_ac97_set_rate(chip->ac97, AC97_PCM_LFE_DAC_RATE, runtime->rate);
1073         snd_ac97_set_rate(chip->ac97, AC97_SPDIF, runtime->rate);
1074         snd_via82xx_channel_reset(chip, viadev);
1075         snd_via82xx_set_table_ptr(chip, viadev);
1076
1077         fmt = (runtime->format == SNDRV_PCM_FORMAT_S16_LE) ?
1078                 VIA_REG_MULTPLAY_FMT_16BIT : VIA_REG_MULTPLAY_FMT_8BIT;
1079         fmt |= runtime->channels << 4;
1080         outb(fmt, VIADEV_REG(viadev, OFS_MULTPLAY_FORMAT));
1081 #if 0
1082         if (chip->revision == VIA_REV_8233A)
1083                 slots = 0;
1084         else
1085 #endif
1086         {
1087                 /* set sample number to slot 3, 4, 7, 8, 6, 9 (for VIA8233/C,8235) */
1088                 /* corresponding to FL, FR, RL, RR, C, LFE ?? */
1089                 switch (runtime->channels) {
1090                 case 1: slots = (1<<0) | (1<<4); break;
1091                 case 2: slots = (1<<0) | (2<<4); break;
1092                 case 3: slots = (1<<0) | (2<<4) | (5<<8); break;
1093                 case 4: slots = (1<<0) | (2<<4) | (3<<8) | (4<<12); break;
1094                 case 5: slots = (1<<0) | (2<<4) | (3<<8) | (4<<12) | (5<<16); break;
1095                 case 6: slots = (1<<0) | (2<<4) | (3<<8) | (4<<12) | (5<<16) | (6<<20); break;
1096                 default: slots = 0; break;
1097                 }
1098         }
1099         /* STOP index is never reached */
1100         outl(0xff000000 | slots, VIADEV_REG(viadev, OFFSET_STOP_IDX));
1101         udelay(20);
1102         snd_via82xx_codec_ready(chip, 0);
1103         return 0;
1104 }
1105
1106 /*
1107  * prepare callback for capture on via823x
1108  */
1109 static int snd_via8233_capture_prepare(struct snd_pcm_substream *substream)
1110 {
1111         struct via82xx *chip = snd_pcm_substream_chip(substream);
1112         struct viadev *viadev = substream->runtime->private_data;
1113         struct snd_pcm_runtime *runtime = substream->runtime;
1114
1115         if (via_lock_rate(&chip->rates[1], runtime->rate) < 0)
1116                 return -EINVAL;
1117         snd_ac97_set_rate(chip->ac97, AC97_PCM_LR_ADC_RATE, runtime->rate);
1118         snd_via82xx_channel_reset(chip, viadev);
1119         snd_via82xx_set_table_ptr(chip, viadev);
1120         outb(VIA_REG_CAPTURE_FIFO_ENABLE, VIADEV_REG(viadev, OFS_CAPTURE_FIFO));
1121         outl((runtime->format == SNDRV_PCM_FORMAT_S16_LE ? VIA8233_REG_TYPE_16BIT : 0) |
1122              (runtime->channels > 1 ? VIA8233_REG_TYPE_STEREO : 0) |
1123              0xff000000,    /* STOP index is never reached */
1124              VIADEV_REG(viadev, OFFSET_STOP_IDX));
1125         udelay(20);
1126         snd_via82xx_codec_ready(chip, 0);
1127         return 0;
1128 }
1129
1130
1131 /*
1132  * pcm hardware definition, identical for both playback and capture
1133  */
1134 static struct snd_pcm_hardware snd_via82xx_hw =
1135 {
1136         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1137                                  SNDRV_PCM_INFO_BLOCK_TRANSFER |
1138                                  SNDRV_PCM_INFO_MMAP_VALID |
1139                                  /* SNDRV_PCM_INFO_RESUME | */
1140                                  SNDRV_PCM_INFO_PAUSE),
1141         .formats =              SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
1142         .rates =                SNDRV_PCM_RATE_48000,
1143         .rate_min =             48000,
1144         .rate_max =             48000,
1145         .channels_min =         1,
1146         .channels_max =         2,
1147         .buffer_bytes_max =     128 * 1024,
1148         .period_bytes_min =     32,
1149         .period_bytes_max =     128 * 1024,
1150         .periods_min =          2,
1151         .periods_max =          VIA_TABLE_SIZE / 2,
1152         .fifo_size =            0,
1153 };
1154
1155
1156 /*
1157  * open callback skeleton
1158  */
1159 static int snd_via82xx_pcm_open(struct via82xx *chip, struct viadev *viadev,
1160                                 struct snd_pcm_substream *substream)
1161 {
1162         struct snd_pcm_runtime *runtime = substream->runtime;
1163         int err;
1164         struct via_rate_lock *ratep;
1165
1166         runtime->hw = snd_via82xx_hw;
1167         
1168         /* set the hw rate condition */
1169         ratep = &chip->rates[viadev->direction];
1170         spin_lock_irq(&ratep->lock);
1171         ratep->used++;
1172         if (chip->spdif_on && viadev->reg_offset == 0x30) {
1173                 /* DXS#3 and spdif is on */
1174                 runtime->hw.rates = chip->ac97->rates[AC97_RATES_SPDIF];
1175                 snd_pcm_limit_hw_rates(runtime);
1176         } else if (chip->dxs_fixed && viadev->reg_offset < 0x40) {
1177                 /* fixed DXS playback rate */
1178                 runtime->hw.rates = SNDRV_PCM_RATE_48000;
1179                 runtime->hw.rate_min = runtime->hw.rate_max = 48000;
1180         } else if (chip->dxs_src && viadev->reg_offset < 0x40) {
1181                 /* use full SRC capabilities of DXS */
1182                 runtime->hw.rates = (SNDRV_PCM_RATE_CONTINUOUS |
1183                                      SNDRV_PCM_RATE_8000_48000);
1184                 runtime->hw.rate_min = 8000;
1185                 runtime->hw.rate_max = 48000;
1186         } else if (! ratep->rate) {
1187                 int idx = viadev->direction ? AC97_RATES_ADC : AC97_RATES_FRONT_DAC;
1188                 runtime->hw.rates = chip->ac97->rates[idx];
1189                 snd_pcm_limit_hw_rates(runtime);
1190         } else {
1191                 /* a fixed rate */
1192                 runtime->hw.rates = SNDRV_PCM_RATE_KNOT;
1193                 runtime->hw.rate_max = runtime->hw.rate_min = ratep->rate;
1194         }
1195         spin_unlock_irq(&ratep->lock);
1196
1197         /* we may remove following constaint when we modify table entries
1198            in interrupt */
1199         if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
1200                 return err;
1201
1202         runtime->private_data = viadev;
1203         viadev->substream = substream;
1204
1205         return 0;
1206 }
1207
1208
1209 /*
1210  * open callback for playback on via686 and via823x DSX
1211  */
1212 static int snd_via82xx_playback_open(struct snd_pcm_substream *substream)
1213 {
1214         struct via82xx *chip = snd_pcm_substream_chip(substream);
1215         struct viadev *viadev = &chip->devs[chip->playback_devno + substream->number];
1216         int err;
1217
1218         if ((err = snd_via82xx_pcm_open(chip, viadev, substream)) < 0)
1219                 return err;
1220         return 0;
1221 }
1222
1223 /*
1224  * open callback for playback on via823x multi-channel
1225  */
1226 static int snd_via8233_multi_open(struct snd_pcm_substream *substream)
1227 {
1228         struct via82xx *chip = snd_pcm_substream_chip(substream);
1229         struct viadev *viadev = &chip->devs[chip->multi_devno];
1230         int err;
1231         /* channels constraint for VIA8233A
1232          * 3 and 5 channels are not supported
1233          */
1234         static unsigned int channels[] = {
1235                 1, 2, 4, 6
1236         };
1237         static struct snd_pcm_hw_constraint_list hw_constraints_channels = {
1238                 .count = ARRAY_SIZE(channels),
1239                 .list = channels,
1240                 .mask = 0,
1241         };
1242
1243         if ((err = snd_via82xx_pcm_open(chip, viadev, substream)) < 0)
1244                 return err;
1245         substream->runtime->hw.channels_max = 6;
1246         if (chip->revision == VIA_REV_8233A)
1247                 snd_pcm_hw_constraint_list(substream->runtime, 0,
1248                                            SNDRV_PCM_HW_PARAM_CHANNELS,
1249                                            &hw_constraints_channels);
1250         return 0;
1251 }
1252
1253 /*
1254  * open callback for capture on via686 and via823x
1255  */
1256 static int snd_via82xx_capture_open(struct snd_pcm_substream *substream)
1257 {
1258         struct via82xx *chip = snd_pcm_substream_chip(substream);
1259         struct viadev *viadev = &chip->devs[chip->capture_devno + substream->pcm->device];
1260
1261         return snd_via82xx_pcm_open(chip, viadev, substream);
1262 }
1263
1264 /*
1265  * close callback
1266  */
1267 static int snd_via82xx_pcm_close(struct snd_pcm_substream *substream)
1268 {
1269         struct via82xx *chip = snd_pcm_substream_chip(substream);
1270         struct viadev *viadev = substream->runtime->private_data;
1271         struct via_rate_lock *ratep;
1272
1273         /* release the rate lock */
1274         ratep = &chip->rates[viadev->direction];
1275         spin_lock_irq(&ratep->lock);
1276         ratep->used--;
1277         if (! ratep->used)
1278                 ratep->rate = 0;
1279         spin_unlock_irq(&ratep->lock);
1280
1281         viadev->substream = NULL;
1282         return 0;
1283 }
1284
1285
1286 /* via686 playback callbacks */
1287 static struct snd_pcm_ops snd_via686_playback_ops = {
1288         .open =         snd_via82xx_playback_open,
1289         .close =        snd_via82xx_pcm_close,
1290         .ioctl =        snd_pcm_lib_ioctl,
1291         .hw_params =    snd_via82xx_hw_params,
1292         .hw_free =      snd_via82xx_hw_free,
1293         .prepare =      snd_via686_playback_prepare,
1294         .trigger =      snd_via82xx_pcm_trigger,
1295         .pointer =      snd_via686_pcm_pointer,
1296         .page =         snd_pcm_sgbuf_ops_page,
1297 };
1298
1299 /* via686 capture callbacks */
1300 static struct snd_pcm_ops snd_via686_capture_ops = {
1301         .open =         snd_via82xx_capture_open,
1302         .close =        snd_via82xx_pcm_close,
1303         .ioctl =        snd_pcm_lib_ioctl,
1304         .hw_params =    snd_via82xx_hw_params,
1305         .hw_free =      snd_via82xx_hw_free,
1306         .prepare =      snd_via686_capture_prepare,
1307         .trigger =      snd_via82xx_pcm_trigger,
1308         .pointer =      snd_via686_pcm_pointer,
1309         .page =         snd_pcm_sgbuf_ops_page,
1310 };
1311
1312 /* via823x DSX playback callbacks */
1313 static struct snd_pcm_ops snd_via8233_playback_ops = {
1314         .open =         snd_via82xx_playback_open,
1315         .close =        snd_via82xx_pcm_close,
1316         .ioctl =        snd_pcm_lib_ioctl,
1317         .hw_params =    snd_via82xx_hw_params,
1318         .hw_free =      snd_via82xx_hw_free,
1319         .prepare =      snd_via8233_playback_prepare,
1320         .trigger =      snd_via82xx_pcm_trigger,
1321         .pointer =      snd_via8233_pcm_pointer,
1322         .page =         snd_pcm_sgbuf_ops_page,
1323 };
1324
1325 /* via823x multi-channel playback callbacks */
1326 static struct snd_pcm_ops snd_via8233_multi_ops = {
1327         .open =         snd_via8233_multi_open,
1328         .close =        snd_via82xx_pcm_close,
1329         .ioctl =        snd_pcm_lib_ioctl,
1330         .hw_params =    snd_via82xx_hw_params,
1331         .hw_free =      snd_via82xx_hw_free,
1332         .prepare =      snd_via8233_multi_prepare,
1333         .trigger =      snd_via82xx_pcm_trigger,
1334         .pointer =      snd_via8233_pcm_pointer,
1335         .page =         snd_pcm_sgbuf_ops_page,
1336 };
1337
1338 /* via823x capture callbacks */
1339 static struct snd_pcm_ops snd_via8233_capture_ops = {
1340         .open =         snd_via82xx_capture_open,
1341         .close =        snd_via82xx_pcm_close,
1342         .ioctl =        snd_pcm_lib_ioctl,
1343         .hw_params =    snd_via82xx_hw_params,
1344         .hw_free =      snd_via82xx_hw_free,
1345         .prepare =      snd_via8233_capture_prepare,
1346         .trigger =      snd_via82xx_pcm_trigger,
1347         .pointer =      snd_via8233_pcm_pointer,
1348         .page =         snd_pcm_sgbuf_ops_page,
1349 };
1350
1351
1352 static void init_viadev(struct via82xx *chip, int idx, unsigned int reg_offset,
1353                         int shadow_pos, int direction)
1354 {
1355         chip->devs[idx].reg_offset = reg_offset;
1356         chip->devs[idx].shadow_shift = shadow_pos * 4;
1357         chip->devs[idx].direction = direction;
1358         chip->devs[idx].port = chip->port + reg_offset;
1359 }
1360
1361 /*
1362  * create pcm instances for VIA8233, 8233C and 8235 (not 8233A)
1363  */
1364 static int __devinit snd_via8233_pcm_new(struct via82xx *chip)
1365 {
1366         struct snd_pcm *pcm;
1367         int i, err;
1368
1369         chip->playback_devno = 0;       /* x 4 */
1370         chip->multi_devno = 4;          /* x 1 */
1371         chip->capture_devno = 5;        /* x 2 */
1372         chip->num_devs = 7;
1373         chip->intr_mask = 0x33033333; /* FLAG|EOL for rec0-1, mc, sdx0-3 */
1374
1375         /* PCM #0:  4 DSX playbacks and 1 capture */
1376         err = snd_pcm_new(chip->card, chip->card->shortname, 0, 4, 1, &pcm);
1377         if (err < 0)
1378                 return err;
1379         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_via8233_playback_ops);
1380         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_via8233_capture_ops);
1381         pcm->private_data = chip;
1382         strcpy(pcm->name, chip->card->shortname);
1383         chip->pcms[0] = pcm;
1384         /* set up playbacks */
1385         for (i = 0; i < 4; i++)
1386                 init_viadev(chip, i, 0x10 * i, i, 0);
1387         /* capture */
1388         init_viadev(chip, chip->capture_devno, VIA_REG_CAPTURE_8233_STATUS, 6, 1);
1389
1390         if ((err = snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
1391                                                          snd_dma_pci_data(chip->pci),
1392                                                          64*1024, 128*1024)) < 0)
1393                 return err;
1394
1395         /* PCM #1:  multi-channel playback and 2nd capture */
1396         err = snd_pcm_new(chip->card, chip->card->shortname, 1, 1, 1, &pcm);
1397         if (err < 0)
1398                 return err;
1399         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_via8233_multi_ops);
1400         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_via8233_capture_ops);
1401         pcm->private_data = chip;
1402         strcpy(pcm->name, chip->card->shortname);
1403         chip->pcms[1] = pcm;
1404         /* set up playback */
1405         init_viadev(chip, chip->multi_devno, VIA_REG_MULTPLAY_STATUS, 4, 0);
1406         /* set up capture */
1407         init_viadev(chip, chip->capture_devno + 1, VIA_REG_CAPTURE_8233_STATUS + 0x10, 7, 1);
1408
1409         if ((err = snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
1410                                                          snd_dma_pci_data(chip->pci),
1411                                                          64*1024, 128*1024)) < 0)
1412                 return err;
1413
1414         return 0;
1415 }
1416
1417 /*
1418  * create pcm instances for VIA8233A
1419  */
1420 static int __devinit snd_via8233a_pcm_new(struct via82xx *chip)
1421 {
1422         struct snd_pcm *pcm;
1423         int err;
1424
1425         chip->multi_devno = 0;
1426         chip->playback_devno = 1;
1427         chip->capture_devno = 2;
1428         chip->num_devs = 3;
1429         chip->intr_mask = 0x03033000; /* FLAG|EOL for rec0, mc, sdx3 */
1430
1431         /* PCM #0:  multi-channel playback and capture */
1432         err = snd_pcm_new(chip->card, chip->card->shortname, 0, 1, 1, &pcm);
1433         if (err < 0)
1434                 return err;
1435         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_via8233_multi_ops);
1436         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_via8233_capture_ops);
1437         pcm->private_data = chip;
1438         strcpy(pcm->name, chip->card->shortname);
1439         chip->pcms[0] = pcm;
1440         /* set up playback */
1441         init_viadev(chip, chip->multi_devno, VIA_REG_MULTPLAY_STATUS, 4, 0);
1442         /* capture */
1443         init_viadev(chip, chip->capture_devno, VIA_REG_CAPTURE_8233_STATUS, 6, 1);
1444
1445         if ((err = snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
1446                                                          snd_dma_pci_data(chip->pci),
1447                                                          64*1024, 128*1024)) < 0)
1448                 return err;
1449
1450         /* SPDIF supported? */
1451         if (! ac97_can_spdif(chip->ac97))
1452                 return 0;
1453
1454         /* PCM #1:  DXS3 playback (for spdif) */
1455         err = snd_pcm_new(chip->card, chip->card->shortname, 1, 1, 0, &pcm);
1456         if (err < 0)
1457                 return err;
1458         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_via8233_playback_ops);
1459         pcm->private_data = chip;
1460         strcpy(pcm->name, chip->card->shortname);
1461         chip->pcms[1] = pcm;
1462         /* set up playback */
1463         init_viadev(chip, chip->playback_devno, 0x30, 3, 0);
1464
1465         if ((err = snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
1466                                                          snd_dma_pci_data(chip->pci),
1467                                                          64*1024, 128*1024)) < 0)
1468                 return err;
1469
1470         return 0;
1471 }
1472
1473 /*
1474  * create a pcm instance for via686a/b
1475  */
1476 static int __devinit snd_via686_pcm_new(struct via82xx *chip)
1477 {
1478         struct snd_pcm *pcm;
1479         int err;
1480
1481         chip->playback_devno = 0;
1482         chip->capture_devno = 1;
1483         chip->num_devs = 2;
1484         chip->intr_mask = 0x77; /* FLAG | EOL for PB, CP, FM */
1485
1486         err = snd_pcm_new(chip->card, chip->card->shortname, 0, 1, 1, &pcm);
1487         if (err < 0)
1488                 return err;
1489         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_via686_playback_ops);
1490         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_via686_capture_ops);
1491         pcm->private_data = chip;
1492         strcpy(pcm->name, chip->card->shortname);
1493         chip->pcms[0] = pcm;
1494         init_viadev(chip, 0, VIA_REG_PLAYBACK_STATUS, 0, 0);
1495         init_viadev(chip, 1, VIA_REG_CAPTURE_STATUS, 0, 1);
1496
1497         if ((err = snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
1498                                                          snd_dma_pci_data(chip->pci),
1499                                                          64*1024, 128*1024)) < 0)
1500                 return err;
1501
1502         return 0;
1503 }
1504
1505
1506 /*
1507  *  Mixer part
1508  */
1509
1510 static int snd_via8233_capture_source_info(struct snd_kcontrol *kcontrol,
1511                                            struct snd_ctl_elem_info *uinfo)
1512 {
1513         /* formerly they were "Line" and "Mic", but it looks like that they
1514          * have nothing to do with the actual physical connections...
1515          */
1516         static char *texts[2] = {
1517                 "Input1", "Input2"
1518         };
1519         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
1520         uinfo->count = 1;
1521         uinfo->value.enumerated.items = 2;
1522         if (uinfo->value.enumerated.item >= 2)
1523                 uinfo->value.enumerated.item = 1;
1524         strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
1525         return 0;
1526 }
1527
1528 static int snd_via8233_capture_source_get(struct snd_kcontrol *kcontrol,
1529                                           struct snd_ctl_elem_value *ucontrol)
1530 {
1531         struct via82xx *chip = snd_kcontrol_chip(kcontrol);
1532         unsigned long port = chip->port + (kcontrol->id.index ? (VIA_REG_CAPTURE_CHANNEL + 0x10) : VIA_REG_CAPTURE_CHANNEL);
1533         ucontrol->value.enumerated.item[0] = inb(port) & VIA_REG_CAPTURE_CHANNEL_MIC ? 1 : 0;
1534         return 0;
1535 }
1536
1537 static int snd_via8233_capture_source_put(struct snd_kcontrol *kcontrol,
1538                                           struct snd_ctl_elem_value *ucontrol)
1539 {
1540         struct via82xx *chip = snd_kcontrol_chip(kcontrol);
1541         unsigned long port = chip->port + (kcontrol->id.index ? (VIA_REG_CAPTURE_CHANNEL + 0x10) : VIA_REG_CAPTURE_CHANNEL);
1542         u8 val, oval;
1543
1544         spin_lock_irq(&chip->reg_lock);
1545         oval = inb(port);
1546         val = oval & ~VIA_REG_CAPTURE_CHANNEL_MIC;
1547         if (ucontrol->value.enumerated.item[0])
1548                 val |= VIA_REG_CAPTURE_CHANNEL_MIC;
1549         if (val != oval)
1550                 outb(val, port);
1551         spin_unlock_irq(&chip->reg_lock);
1552         return val != oval;
1553 }
1554
1555 static struct snd_kcontrol_new snd_via8233_capture_source __devinitdata = {
1556         .name = "Input Source Select",
1557         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1558         .info = snd_via8233_capture_source_info,
1559         .get = snd_via8233_capture_source_get,
1560         .put = snd_via8233_capture_source_put,
1561 };
1562
1563 static int snd_via8233_dxs3_spdif_info(struct snd_kcontrol *kcontrol,
1564                                        struct snd_ctl_elem_info *uinfo)
1565 {
1566         uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
1567         uinfo->count = 1;
1568         uinfo->value.integer.min = 0;
1569         uinfo->value.integer.max = 1;
1570         return 0;
1571 }
1572
1573 static int snd_via8233_dxs3_spdif_get(struct snd_kcontrol *kcontrol,
1574                                       struct snd_ctl_elem_value *ucontrol)
1575 {
1576         struct via82xx *chip = snd_kcontrol_chip(kcontrol);
1577         u8 val;
1578
1579         pci_read_config_byte(chip->pci, VIA8233_SPDIF_CTRL, &val);
1580         ucontrol->value.integer.value[0] = (val & VIA8233_SPDIF_DX3) ? 1 : 0;
1581         return 0;
1582 }
1583
1584 static int snd_via8233_dxs3_spdif_put(struct snd_kcontrol *kcontrol,
1585                                       struct snd_ctl_elem_value *ucontrol)
1586 {
1587         struct via82xx *chip = snd_kcontrol_chip(kcontrol);
1588         u8 val, oval;
1589
1590         pci_read_config_byte(chip->pci, VIA8233_SPDIF_CTRL, &oval);
1591         val = oval & ~VIA8233_SPDIF_DX3;
1592         if (ucontrol->value.integer.value[0])
1593                 val |= VIA8233_SPDIF_DX3;
1594         /* save the spdif flag for rate filtering */
1595         chip->spdif_on = ucontrol->value.integer.value[0] ? 1 : 0;
1596         if (val != oval) {
1597                 pci_write_config_byte(chip->pci, VIA8233_SPDIF_CTRL, val);
1598                 return 1;
1599         }
1600         return 0;
1601 }
1602
1603 static struct snd_kcontrol_new snd_via8233_dxs3_spdif_control __devinitdata = {
1604         .name = SNDRV_CTL_NAME_IEC958("Output ",NONE,SWITCH),
1605         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1606         .info = snd_via8233_dxs3_spdif_info,
1607         .get = snd_via8233_dxs3_spdif_get,
1608         .put = snd_via8233_dxs3_spdif_put,
1609 };
1610
1611 static int snd_via8233_dxs_volume_info(struct snd_kcontrol *kcontrol,
1612                                        struct snd_ctl_elem_info *uinfo)
1613 {
1614         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
1615         uinfo->count = 2;
1616         uinfo->value.integer.min = 0;
1617         uinfo->value.integer.max = VIA_DXS_MAX_VOLUME;
1618         return 0;
1619 }
1620
1621 static int snd_via8233_dxs_volume_get(struct snd_kcontrol *kcontrol,
1622                                       struct snd_ctl_elem_value *ucontrol)
1623 {
1624         struct via82xx *chip = snd_kcontrol_chip(kcontrol);
1625         unsigned int idx = snd_ctl_get_ioff(kcontrol, &ucontrol->id);
1626
1627         ucontrol->value.integer.value[0] = VIA_DXS_MAX_VOLUME - chip->playback_volume[idx][0];
1628         ucontrol->value.integer.value[1] = VIA_DXS_MAX_VOLUME - chip->playback_volume[idx][1];
1629         return 0;
1630 }
1631
1632 static int snd_via8233_pcmdxs_volume_get(struct snd_kcontrol *kcontrol,
1633                                          struct snd_ctl_elem_value *ucontrol)
1634 {
1635         struct via82xx *chip = snd_kcontrol_chip(kcontrol);
1636         ucontrol->value.integer.value[0] = VIA_DXS_MAX_VOLUME - chip->playback_volume_c[0];
1637         ucontrol->value.integer.value[1] = VIA_DXS_MAX_VOLUME - chip->playback_volume_c[1];
1638         return 0;
1639 }
1640
1641 static int snd_via8233_dxs_volume_put(struct snd_kcontrol *kcontrol,
1642                                       struct snd_ctl_elem_value *ucontrol)
1643 {
1644         struct via82xx *chip = snd_kcontrol_chip(kcontrol);
1645         unsigned int idx = snd_ctl_get_ioff(kcontrol, &ucontrol->id);
1646         unsigned long port = chip->port + 0x10 * idx;
1647         unsigned char val;
1648         int i, change = 0;
1649
1650         for (i = 0; i < 2; i++) {
1651                 val = ucontrol->value.integer.value[i];
1652                 if (val > VIA_DXS_MAX_VOLUME)
1653                         val = VIA_DXS_MAX_VOLUME;
1654                 val = VIA_DXS_MAX_VOLUME - val;
1655                 change |= val != chip->playback_volume[idx][i];
1656                 if (change) {
1657                         chip->playback_volume[idx][i] = val;
1658                         outb(val, port + VIA_REG_OFS_PLAYBACK_VOLUME_L + i);
1659                 }
1660         }
1661         return change;
1662 }
1663
1664 static int snd_via8233_pcmdxs_volume_put(struct snd_kcontrol *kcontrol,
1665                                          struct snd_ctl_elem_value *ucontrol)
1666 {
1667         struct via82xx *chip = snd_kcontrol_chip(kcontrol);
1668         unsigned int idx;
1669         unsigned char val;
1670         int i, change = 0;
1671
1672         for (i = 0; i < 2; i++) {
1673                 val = ucontrol->value.integer.value[i];
1674                 if (val > VIA_DXS_MAX_VOLUME)
1675                         val = VIA_DXS_MAX_VOLUME;
1676                 val = VIA_DXS_MAX_VOLUME - val;
1677                 if (val != chip->playback_volume_c[i]) {
1678                         change = 1;
1679                         chip->playback_volume_c[i] = val;
1680                         for (idx = 0; idx < 4; idx++) {
1681                                 unsigned long port = chip->port + 0x10 * idx;
1682                                 chip->playback_volume[idx][i] = val;
1683                                 outb(val, port + VIA_REG_OFS_PLAYBACK_VOLUME_L + i);
1684                         }
1685                 }
1686         }
1687         return change;
1688 }
1689
1690 static struct snd_kcontrol_new snd_via8233_pcmdxs_volume_control __devinitdata = {
1691         .name = "PCM Playback Volume",
1692         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1693         .info = snd_via8233_dxs_volume_info,
1694         .get = snd_via8233_pcmdxs_volume_get,
1695         .put = snd_via8233_pcmdxs_volume_put,
1696 };
1697
1698 static struct snd_kcontrol_new snd_via8233_dxs_volume_control __devinitdata = {
1699         .name = "VIA DXS Playback Volume",
1700         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1701         .count = 4,
1702         .info = snd_via8233_dxs_volume_info,
1703         .get = snd_via8233_dxs_volume_get,
1704         .put = snd_via8233_dxs_volume_put,
1705 };
1706
1707 /*
1708  */
1709
1710 static void snd_via82xx_mixer_free_ac97_bus(struct snd_ac97_bus *bus)
1711 {
1712         struct via82xx *chip = bus->private_data;
1713         chip->ac97_bus = NULL;
1714 }
1715
1716 static void snd_via82xx_mixer_free_ac97(struct snd_ac97 *ac97)
1717 {
1718         struct via82xx *chip = ac97->private_data;
1719         chip->ac97 = NULL;
1720 }
1721
1722 static struct ac97_quirk ac97_quirks[] = {
1723         {
1724                 .subvendor = 0x1106,
1725                 .subdevice = 0x4161,
1726                 .codec_id = 0x56494161, /* VT1612A */
1727                 .name = "Soltek SL-75DRV5",
1728                 .type = AC97_TUNE_NONE
1729         },
1730         {       /* FIXME: which codec? */
1731                 .subvendor = 0x1106,
1732                 .subdevice = 0x4161,
1733                 .name = "ASRock K7VT2",
1734                 .type = AC97_TUNE_HP_ONLY
1735         },
1736         {
1737                 .subvendor = 0x1019,
1738                 .subdevice = 0x0a81,
1739                 .name = "ECS K7VTA3",
1740                 .type = AC97_TUNE_HP_ONLY
1741         },
1742         {
1743                 .subvendor = 0x1019,
1744                 .subdevice = 0x0a85,
1745                 .name = "ECS L7VMM2",
1746                 .type = AC97_TUNE_HP_ONLY
1747         },
1748         {
1749                 .subvendor = 0x1849,
1750                 .subdevice = 0x3059,
1751                 .name = "ASRock K7VM2",
1752                 .type = AC97_TUNE_HP_ONLY       /* VT1616 */
1753         },
1754         {
1755                 .subvendor = 0x14cd,
1756                 .subdevice = 0x7002,
1757                 .name = "Unknown",
1758                 .type = AC97_TUNE_ALC_JACK
1759         },
1760         {
1761                 .subvendor = 0x1071,
1762                 .subdevice = 0x8590,
1763                 .name = "Mitac Mobo",
1764                 .type = AC97_TUNE_ALC_JACK
1765         },
1766         {
1767                 .subvendor = 0x161f,
1768                 .subdevice = 0x202b,
1769                 .name = "Arima Notebook",
1770                 .type = AC97_TUNE_HP_ONLY,
1771         },
1772         {
1773                 .subvendor = 0x161f,
1774                 .subdevice = 0x2032,
1775                 .name = "Targa Traveller 811",
1776                 .type = AC97_TUNE_HP_ONLY,
1777         },
1778         { } /* terminator */
1779 };
1780
1781 static int __devinit snd_via82xx_mixer_new(struct via82xx *chip, const char *quirk_override)
1782 {
1783         struct snd_ac97_template ac97;
1784         int err;
1785         static struct snd_ac97_bus_ops ops = {
1786                 .write = snd_via82xx_codec_write,
1787                 .read = snd_via82xx_codec_read,
1788                 .wait = snd_via82xx_codec_wait,
1789         };
1790
1791         if ((err = snd_ac97_bus(chip->card, 0, &ops, chip, &chip->ac97_bus)) < 0)
1792                 return err;
1793         chip->ac97_bus->private_free = snd_via82xx_mixer_free_ac97_bus;
1794         chip->ac97_bus->clock = chip->ac97_clock;
1795
1796         memset(&ac97, 0, sizeof(ac97));
1797         ac97.private_data = chip;
1798         ac97.private_free = snd_via82xx_mixer_free_ac97;
1799         ac97.pci = chip->pci;
1800         ac97.scaps = AC97_SCAP_SKIP_MODEM;
1801         if ((err = snd_ac97_mixer(chip->ac97_bus, &ac97, &chip->ac97)) < 0)
1802                 return err;
1803
1804         snd_ac97_tune_hardware(chip->ac97, ac97_quirks, quirk_override);
1805
1806         if (chip->chip_type != TYPE_VIA686) {
1807                 /* use slot 10/11 */
1808                 snd_ac97_update_bits(chip->ac97, AC97_EXTENDED_STATUS, 0x03 << 4, 0x03 << 4);
1809         }
1810
1811         return 0;
1812 }
1813
1814 #ifdef SUPPORT_JOYSTICK
1815 #define JOYSTICK_ADDR   0x200
1816 static int __devinit snd_via686_create_gameport(struct via82xx *chip, unsigned char *legacy)
1817 {
1818         struct gameport *gp;
1819         struct resource *r;
1820
1821         if (!joystick)
1822                 return -ENODEV;
1823
1824         r = request_region(JOYSTICK_ADDR, 8, "VIA686 gameport");
1825         if (!r) {
1826                 printk(KERN_WARNING "via82xx: cannot reserve joystick port 0x%#x\n",
1827                        JOYSTICK_ADDR);
1828                 return -EBUSY;
1829         }
1830
1831         chip->gameport = gp = gameport_allocate_port();
1832         if (!gp) {
1833                 printk(KERN_ERR "via82xx: cannot allocate memory for gameport\n");
1834                 release_and_free_resource(r);
1835                 return -ENOMEM;
1836         }
1837
1838         gameport_set_name(gp, "VIA686 Gameport");
1839         gameport_set_phys(gp, "pci%s/gameport0", pci_name(chip->pci));
1840         gameport_set_dev_parent(gp, &chip->pci->dev);
1841         gp->io = JOYSTICK_ADDR;
1842         gameport_set_port_data(gp, r);
1843
1844         /* Enable legacy joystick port */
1845         *legacy |= VIA_FUNC_ENABLE_GAME;
1846         pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE, *legacy);
1847
1848         gameport_register_port(chip->gameport);
1849
1850         return 0;
1851 }
1852
1853 static void snd_via686_free_gameport(struct via82xx *chip)
1854 {
1855         if (chip->gameport) {
1856                 struct resource *r = gameport_get_port_data(chip->gameport);
1857
1858                 gameport_unregister_port(chip->gameport);
1859                 chip->gameport = NULL;
1860                 release_and_free_resource(r);
1861         }
1862 }
1863 #else
1864 static inline int snd_via686_create_gameport(struct via82xx *chip, unsigned char *legacy)
1865 {
1866         return -ENOSYS;
1867 }
1868 static inline void snd_via686_free_gameport(struct via82xx *chip) { }
1869 #endif
1870
1871
1872 /*
1873  *
1874  */
1875
1876 static int __devinit snd_via8233_init_misc(struct via82xx *chip)
1877 {
1878         int i, err, caps;
1879         unsigned char val;
1880
1881         caps = chip->chip_type == TYPE_VIA8233A ? 1 : 2;
1882         for (i = 0; i < caps; i++) {
1883                 snd_via8233_capture_source.index = i;
1884                 err = snd_ctl_add(chip->card, snd_ctl_new1(&snd_via8233_capture_source, chip));
1885                 if (err < 0)
1886                         return err;
1887         }
1888         if (ac97_can_spdif(chip->ac97)) {
1889                 err = snd_ctl_add(chip->card, snd_ctl_new1(&snd_via8233_dxs3_spdif_control, chip));
1890                 if (err < 0)
1891                         return err;
1892         }
1893         if (chip->chip_type != TYPE_VIA8233A) {
1894                 /* when no h/w PCM volume control is found, use DXS volume control
1895                  * as the PCM vol control
1896                  */
1897                 struct snd_ctl_elem_id sid;
1898                 memset(&sid, 0, sizeof(sid));
1899                 strcpy(sid.name, "PCM Playback Volume");
1900                 sid.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
1901                 if (! snd_ctl_find_id(chip->card, &sid)) {
1902                         snd_printd(KERN_INFO "Using DXS as PCM Playback\n");
1903                         err = snd_ctl_add(chip->card, snd_ctl_new1(&snd_via8233_pcmdxs_volume_control, chip));
1904                         if (err < 0)
1905                                 return err;
1906                 }
1907                 else /* Using DXS when PCM emulation is enabled is really weird */
1908                 {
1909                         /* Standalone DXS controls */
1910                         err = snd_ctl_add(chip->card, snd_ctl_new1(&snd_via8233_dxs_volume_control, chip));
1911                         if (err < 0)
1912                                 return err;
1913                 }
1914         }
1915         /* select spdif data slot 10/11 */
1916         pci_read_config_byte(chip->pci, VIA8233_SPDIF_CTRL, &val);
1917         val = (val & ~VIA8233_SPDIF_SLOT_MASK) | VIA8233_SPDIF_SLOT_1011;
1918         val &= ~VIA8233_SPDIF_DX3; /* SPDIF off as default */
1919         pci_write_config_byte(chip->pci, VIA8233_SPDIF_CTRL, val);
1920
1921         return 0;
1922 }
1923
1924 static int __devinit snd_via686_init_misc(struct via82xx *chip)
1925 {
1926         unsigned char legacy, legacy_cfg;
1927         int rev_h = 0;
1928
1929         legacy = chip->old_legacy;
1930         legacy_cfg = chip->old_legacy_cfg;
1931         legacy |= VIA_FUNC_MIDI_IRQMASK;        /* FIXME: correct? (disable MIDI) */
1932         legacy &= ~VIA_FUNC_ENABLE_GAME;        /* disable joystick */
1933         if (chip->revision >= VIA_REV_686_H) {
1934                 rev_h = 1;
1935                 if (mpu_port >= 0x200) {        /* force MIDI */
1936                         mpu_port &= 0xfffc;
1937                         pci_write_config_dword(chip->pci, 0x18, mpu_port | 0x01);
1938 #ifdef CONFIG_PM
1939                         chip->mpu_port_saved = mpu_port;
1940 #endif
1941                 } else {
1942                         mpu_port = pci_resource_start(chip->pci, 2);
1943                 }
1944         } else {
1945                 switch (mpu_port) {     /* force MIDI */
1946                 case 0x300:
1947                 case 0x310:
1948                 case 0x320:
1949                 case 0x330:
1950                         legacy_cfg &= ~(3 << 2);
1951                         legacy_cfg |= (mpu_port & 0x0030) >> 2;
1952                         break;
1953                 default:                        /* no, use BIOS settings */
1954                         if (legacy & VIA_FUNC_ENABLE_MIDI)
1955                                 mpu_port = 0x300 + ((legacy_cfg & 0x000c) << 2);
1956                         break;
1957                 }
1958         }
1959         if (mpu_port >= 0x200 &&
1960             (chip->mpu_res = request_region(mpu_port, 2, "VIA82xx MPU401"))
1961             != NULL) {
1962                 if (rev_h)
1963                         legacy |= VIA_FUNC_MIDI_PNP;    /* enable PCI I/O 2 */
1964                 legacy |= VIA_FUNC_ENABLE_MIDI;
1965         } else {
1966                 if (rev_h)
1967                         legacy &= ~VIA_FUNC_MIDI_PNP;   /* disable PCI I/O 2 */
1968                 legacy &= ~VIA_FUNC_ENABLE_MIDI;
1969                 mpu_port = 0;
1970         }
1971
1972         pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE, legacy);
1973         pci_write_config_byte(chip->pci, VIA_PNP_CONTROL, legacy_cfg);
1974         if (chip->mpu_res) {
1975                 if (snd_mpu401_uart_new(chip->card, 0, MPU401_HW_VIA686A,
1976                                         mpu_port, MPU401_INFO_INTEGRATED,
1977                                         chip->irq, 0, &chip->rmidi) < 0) {
1978                         printk(KERN_WARNING "unable to initialize MPU-401"
1979                                " at 0x%lx, skipping\n", mpu_port);
1980                         legacy &= ~VIA_FUNC_ENABLE_MIDI;
1981                 } else {
1982                         legacy &= ~VIA_FUNC_MIDI_IRQMASK;       /* enable MIDI interrupt */
1983                 }
1984                 pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE, legacy);
1985         }
1986
1987         snd_via686_create_gameport(chip, &legacy);
1988
1989 #ifdef CONFIG_PM
1990         chip->legacy_saved = legacy;
1991         chip->legacy_cfg_saved = legacy_cfg;
1992 #endif
1993
1994         return 0;
1995 }
1996
1997
1998 /*
1999  * proc interface
2000  */
2001 static void snd_via82xx_proc_read(struct snd_info_entry *entry,
2002                                   struct snd_info_buffer *buffer)
2003 {
2004         struct via82xx *chip = entry->private_data;
2005         int i;
2006         
2007         snd_iprintf(buffer, "%s\n\n", chip->card->longname);
2008         for (i = 0; i < 0xa0; i += 4) {
2009                 snd_iprintf(buffer, "%02x: %08x\n", i, inl(chip->port + i));
2010         }
2011 }
2012
2013 static void __devinit snd_via82xx_proc_init(struct via82xx *chip)
2014 {
2015         struct snd_info_entry *entry;
2016
2017         if (! snd_card_proc_new(chip->card, "via82xx", &entry))
2018                 snd_info_set_text_ops(entry, chip, snd_via82xx_proc_read);
2019 }
2020
2021 /*
2022  *
2023  */
2024
2025 static int snd_via82xx_chip_init(struct via82xx *chip)
2026 {
2027         unsigned int val;
2028         unsigned long end_time;
2029         unsigned char pval;
2030
2031 #if 0 /* broken on K7M? */
2032         if (chip->chip_type == TYPE_VIA686)
2033                 /* disable all legacy ports */
2034                 pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE, 0);
2035 #endif
2036         pci_read_config_byte(chip->pci, VIA_ACLINK_STAT, &pval);
2037         if (! (pval & VIA_ACLINK_C00_READY)) { /* codec not ready? */
2038                 /* deassert ACLink reset, force SYNC */
2039                 pci_write_config_byte(chip->pci, VIA_ACLINK_CTRL,
2040                                       VIA_ACLINK_CTRL_ENABLE |
2041                                       VIA_ACLINK_CTRL_RESET |
2042                                       VIA_ACLINK_CTRL_SYNC);
2043                 udelay(100);
2044 #if 1 /* FIXME: should we do full reset here for all chip models? */
2045                 pci_write_config_byte(chip->pci, VIA_ACLINK_CTRL, 0x00);
2046                 udelay(100);
2047 #else
2048                 /* deassert ACLink reset, force SYNC (warm AC'97 reset) */
2049                 pci_write_config_byte(chip->pci, VIA_ACLINK_CTRL,
2050                                       VIA_ACLINK_CTRL_RESET|VIA_ACLINK_CTRL_SYNC);
2051                 udelay(2);
2052 #endif
2053                 /* ACLink on, deassert ACLink reset, VSR, SGD data out */
2054                 /* note - FM data out has trouble with non VRA codecs !! */
2055                 pci_write_config_byte(chip->pci, VIA_ACLINK_CTRL, VIA_ACLINK_CTRL_INIT);
2056                 udelay(100);
2057         }
2058         
2059         /* Make sure VRA is enabled, in case we didn't do a
2060          * complete codec reset, above */
2061         pci_read_config_byte(chip->pci, VIA_ACLINK_CTRL, &pval);
2062         if ((pval & VIA_ACLINK_CTRL_INIT) != VIA_ACLINK_CTRL_INIT) {
2063                 /* ACLink on, deassert ACLink reset, VSR, SGD data out */
2064                 /* note - FM data out has trouble with non VRA codecs !! */
2065                 pci_write_config_byte(chip->pci, VIA_ACLINK_CTRL, VIA_ACLINK_CTRL_INIT);
2066                 udelay(100);
2067         }
2068
2069         /* wait until codec ready */
2070         end_time = jiffies + msecs_to_jiffies(750);
2071         do {
2072                 pci_read_config_byte(chip->pci, VIA_ACLINK_STAT, &pval);
2073                 if (pval & VIA_ACLINK_C00_READY) /* primary codec ready */
2074                         break;
2075                 schedule_timeout_uninterruptible(1);
2076         } while (time_before(jiffies, end_time));
2077
2078         if ((val = snd_via82xx_codec_xread(chip)) & VIA_REG_AC97_BUSY)
2079                 snd_printk(KERN_ERR "AC'97 codec is not ready [0x%x]\n", val);
2080
2081 #if 0 /* FIXME: we don't support the second codec yet so skip the detection now.. */
2082         snd_via82xx_codec_xwrite(chip, VIA_REG_AC97_READ |
2083                                  VIA_REG_AC97_SECONDARY_VALID |
2084                                  (VIA_REG_AC97_CODEC_ID_SECONDARY << VIA_REG_AC97_CODEC_ID_SHIFT));
2085         end_time = jiffies + msecs_to_jiffies(750);
2086         snd_via82xx_codec_xwrite(chip, VIA_REG_AC97_READ |
2087                                  VIA_REG_AC97_SECONDARY_VALID |
2088                                  (VIA_REG_AC97_CODEC_ID_SECONDARY << VIA_REG_AC97_CODEC_ID_SHIFT));
2089         do {
2090                 if ((val = snd_via82xx_codec_xread(chip)) & VIA_REG_AC97_SECONDARY_VALID) {
2091                         chip->ac97_secondary = 1;
2092                         goto __ac97_ok2;
2093                 }
2094                 schedule_timeout_interruptible(1);
2095         } while (time_before(jiffies, end_time));
2096         /* This is ok, the most of motherboards have only one codec */
2097
2098       __ac97_ok2:
2099 #endif
2100
2101         if (chip->chip_type == TYPE_VIA686) {
2102                 /* route FM trap to IRQ, disable FM trap */
2103                 pci_write_config_byte(chip->pci, VIA_FM_NMI_CTRL, 0);
2104                 /* disable all GPI interrupts */
2105                 outl(0, VIAREG(chip, GPI_INTR));
2106         }
2107
2108         if (chip->chip_type != TYPE_VIA686) {
2109                 /* Workaround for Award BIOS bug:
2110                  * DXS channels don't work properly with VRA if MC97 is disabled.
2111                  */
2112                 struct pci_dev *pci;
2113                 pci = pci_get_device(0x1106, 0x3068, NULL); /* MC97 */
2114                 if (pci) {
2115                         unsigned char data;
2116                         pci_read_config_byte(pci, 0x44, &data);
2117                         pci_write_config_byte(pci, 0x44, data | 0x40);
2118                         pci_dev_put(pci);
2119                 }
2120         }
2121
2122         if (chip->chip_type != TYPE_VIA8233A) {
2123                 int i, idx;
2124                 for (idx = 0; idx < 4; idx++) {
2125                         unsigned long port = chip->port + 0x10 * idx;
2126                         for (i = 0; i < 2; i++) {
2127                                 chip->playback_volume[idx][i]=chip->playback_volume_c[i];
2128                                 outb(chip->playback_volume_c[i],
2129                                      port + VIA_REG_OFS_PLAYBACK_VOLUME_L + i);
2130                         }
2131                 }
2132         }
2133
2134         return 0;
2135 }
2136
2137 #ifdef CONFIG_PM
2138 /*
2139  * power management
2140  */
2141 static int snd_via82xx_suspend(struct pci_dev *pci, pm_message_t state)
2142 {
2143         struct snd_card *card = pci_get_drvdata(pci);
2144         struct via82xx *chip = card->private_data;
2145         int i;
2146
2147         snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
2148         for (i = 0; i < 2; i++)
2149                 snd_pcm_suspend_all(chip->pcms[i]);
2150         for (i = 0; i < chip->num_devs; i++)
2151                 snd_via82xx_channel_reset(chip, &chip->devs[i]);
2152         synchronize_irq(chip->irq);
2153         snd_ac97_suspend(chip->ac97);
2154
2155         /* save misc values */
2156         if (chip->chip_type != TYPE_VIA686) {
2157                 pci_read_config_byte(chip->pci, VIA8233_SPDIF_CTRL, &chip->spdif_ctrl_saved);
2158                 chip->capture_src_saved[0] = inb(chip->port + VIA_REG_CAPTURE_CHANNEL);
2159                 chip->capture_src_saved[1] = inb(chip->port + VIA_REG_CAPTURE_CHANNEL + 0x10);
2160         }
2161
2162         pci_set_power_state(pci, PCI_D3hot);
2163         pci_disable_device(pci);
2164         pci_save_state(pci);
2165         return 0;
2166 }
2167
2168 static int snd_via82xx_resume(struct pci_dev *pci)
2169 {
2170         struct snd_card *card = pci_get_drvdata(pci);
2171         struct via82xx *chip = card->private_data;
2172         int i;
2173
2174         pci_restore_state(pci);
2175         pci_enable_device(pci);
2176         pci_set_power_state(pci, PCI_D0);
2177
2178         snd_via82xx_chip_init(chip);
2179
2180         if (chip->chip_type == TYPE_VIA686) {
2181                 if (chip->mpu_port_saved)
2182                         pci_write_config_dword(chip->pci, 0x18, chip->mpu_port_saved | 0x01);
2183                 pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE, chip->legacy_saved);
2184                 pci_write_config_byte(chip->pci, VIA_PNP_CONTROL, chip->legacy_cfg_saved);
2185         } else {
2186                 pci_write_config_byte(chip->pci, VIA8233_SPDIF_CTRL, chip->spdif_ctrl_saved);
2187                 outb(chip->capture_src_saved[0], chip->port + VIA_REG_CAPTURE_CHANNEL);
2188                 outb(chip->capture_src_saved[1], chip->port + VIA_REG_CAPTURE_CHANNEL + 0x10);
2189         }
2190
2191         snd_ac97_resume(chip->ac97);
2192
2193         for (i = 0; i < chip->num_devs; i++)
2194                 snd_via82xx_channel_reset(chip, &chip->devs[i]);
2195
2196         snd_power_change_state(card, SNDRV_CTL_POWER_D0);
2197         return 0;
2198 }
2199 #endif /* CONFIG_PM */
2200
2201 static int snd_via82xx_free(struct via82xx *chip)
2202 {
2203         unsigned int i;
2204
2205         if (chip->irq < 0)
2206                 goto __end_hw;
2207         /* disable interrupts */
2208         for (i = 0; i < chip->num_devs; i++)
2209                 snd_via82xx_channel_reset(chip, &chip->devs[i]);
2210         synchronize_irq(chip->irq);
2211       __end_hw:
2212         if (chip->irq >= 0)
2213                 free_irq(chip->irq, chip);
2214         release_and_free_resource(chip->mpu_res);
2215         pci_release_regions(chip->pci);
2216
2217         if (chip->chip_type == TYPE_VIA686) {
2218                 snd_via686_free_gameport(chip);
2219                 pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE, chip->old_legacy);
2220                 pci_write_config_byte(chip->pci, VIA_PNP_CONTROL, chip->old_legacy_cfg);
2221         }
2222         pci_disable_device(chip->pci);
2223         kfree(chip);
2224         return 0;
2225 }
2226
2227 static int snd_via82xx_dev_free(struct snd_device *device)
2228 {
2229         struct via82xx *chip = device->device_data;
2230         return snd_via82xx_free(chip);
2231 }
2232
2233 static int __devinit snd_via82xx_create(struct snd_card *card,
2234                                         struct pci_dev *pci,
2235                                         int chip_type,
2236                                         int revision,
2237                                         unsigned int ac97_clock,
2238                                         struct via82xx ** r_via)
2239 {
2240         struct via82xx *chip;
2241         int err;
2242         static struct snd_device_ops ops = {
2243                 .dev_free =     snd_via82xx_dev_free,
2244         };
2245
2246         if ((err = pci_enable_device(pci)) < 0)
2247                 return err;
2248
2249         if ((chip = kzalloc(sizeof(*chip), GFP_KERNEL)) == NULL) {
2250                 pci_disable_device(pci);
2251                 return -ENOMEM;
2252         }
2253
2254         chip->chip_type = chip_type;
2255         chip->revision = revision;
2256
2257         spin_lock_init(&chip->reg_lock);
2258         spin_lock_init(&chip->rates[0].lock);
2259         spin_lock_init(&chip->rates[1].lock);
2260         chip->card = card;
2261         chip->pci = pci;
2262         chip->irq = -1;
2263
2264         pci_read_config_byte(pci, VIA_FUNC_ENABLE, &chip->old_legacy);
2265         pci_read_config_byte(pci, VIA_PNP_CONTROL, &chip->old_legacy_cfg);
2266         pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE,
2267                               chip->old_legacy & ~(VIA_FUNC_ENABLE_SB|VIA_FUNC_ENABLE_FM));
2268
2269         if ((err = pci_request_regions(pci, card->driver)) < 0) {
2270                 kfree(chip);
2271                 pci_disable_device(pci);
2272                 return err;
2273         }
2274         chip->port = pci_resource_start(pci, 0);
2275         if (request_irq(pci->irq,
2276                         chip_type == TYPE_VIA8233 ?
2277                         snd_via8233_interrupt : snd_via686_interrupt,
2278                         SA_INTERRUPT|SA_SHIRQ,
2279                         card->driver, chip)) {
2280                 snd_printk(KERN_ERR "unable to grab IRQ %d\n", pci->irq);
2281                 snd_via82xx_free(chip);
2282                 return -EBUSY;
2283         }
2284         chip->irq = pci->irq;
2285         if (ac97_clock >= 8000 && ac97_clock <= 48000)
2286                 chip->ac97_clock = ac97_clock;
2287         synchronize_irq(chip->irq);
2288
2289         if ((err = snd_via82xx_chip_init(chip)) < 0) {
2290                 snd_via82xx_free(chip);
2291                 return err;
2292         }
2293
2294         if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
2295                 snd_via82xx_free(chip);
2296                 return err;
2297         }
2298
2299         /* The 8233 ac97 controller does not implement the master bit
2300          * in the pci command register. IMHO this is a violation of the PCI spec.
2301          * We call pci_set_master here because it does not hurt. */
2302         pci_set_master(pci);
2303
2304         snd_card_set_dev(card, &pci->dev);
2305
2306         *r_via = chip;
2307         return 0;
2308 }
2309
2310 struct via823x_info {
2311         int revision;
2312         char *name;
2313         int type;
2314 };
2315 static struct via823x_info via823x_cards[] __devinitdata = {
2316         { VIA_REV_PRE_8233, "VIA 8233-Pre", TYPE_VIA8233 },
2317         { VIA_REV_8233C, "VIA 8233C", TYPE_VIA8233 },
2318         { VIA_REV_8233, "VIA 8233", TYPE_VIA8233 },
2319         { VIA_REV_8233A, "VIA 8233A", TYPE_VIA8233A },
2320         { VIA_REV_8235, "VIA 8235", TYPE_VIA8233 },
2321         { VIA_REV_8237, "VIA 8237", TYPE_VIA8233 },
2322         { VIA_REV_8251, "VIA 8251", TYPE_VIA8233 },
2323 };
2324
2325 /*
2326  * auto detection of DXS channel supports.
2327  */
2328 struct dxs_whitelist {
2329         unsigned short subvendor;
2330         unsigned short subdevice; 
2331         unsigned short mask; 
2332         short action;   /* new dxs_support value */
2333 };
2334
2335 static int __devinit check_dxs_list(struct pci_dev *pci, int revision)
2336 {
2337         static struct dxs_whitelist whitelist[] = {
2338                 { .subvendor = 0x1005, .subdevice = 0x4710, .action = VIA_DXS_ENABLE }, /* Avance Logic Mobo */
2339                 { .subvendor = 0x1019, .subdevice = 0x0996, .action = VIA_DXS_48K },
2340                 { .subvendor = 0x1019, .subdevice = 0x0a81, .action = VIA_DXS_NO_VRA }, /* ECS K7VTA3 v8.0 */
2341                 { .subvendor = 0x1019, .subdevice = 0x0a85, .action = VIA_DXS_NO_VRA }, /* ECS L7VMM2 */
2342                 { .subvendor = 0x1019, .subdevice = 0xa101, .action = VIA_DXS_SRC },
2343                 { .subvendor = 0x1019, .subdevice = 0xaa01, .action = VIA_DXS_SRC }, /* ECS K8T890-A */
2344                 { .subvendor = 0x1025, .subdevice = 0x0033, .action = VIA_DXS_NO_VRA }, /* Acer Inspire 1353LM */
2345                 { .subvendor = 0x1025, .subdevice = 0x0046, .action = VIA_DXS_SRC }, /* Acer Aspire 1524 WLMi */
2346                 { .subvendor = 0x1043, .subdevice = 0x8095, .action = VIA_DXS_NO_VRA }, /* ASUS A7V8X (FIXME: possibly VIA_DXS_ENABLE?)*/
2347                 { .subvendor = 0x1043, .subdevice = 0x80a1, .action = VIA_DXS_NO_VRA }, /* ASUS A7V8-X */
2348                 { .subvendor = 0x1043, .subdevice = 0x80b0, .action = VIA_DXS_NO_VRA }, /* ASUS A7V600 & K8V*/ 
2349                 { .subvendor = 0x1043, .subdevice = 0x810d, .action = VIA_DXS_SRC }, /* ASUS */
2350                 { .subvendor = 0x1043, .subdevice = 0x812a, .action = VIA_DXS_SRC    }, /* ASUS A8V Deluxe */ 
2351                 { .subvendor = 0x1043, .subdevice = 0x8174, .action = VIA_DXS_SRC    }, /* ASUS */
2352                 { .subvendor = 0x1043, .subdevice = 0x81b9, .action = VIA_DXS_SRC    }, /* ASUS A8V-MX */
2353                 { .subvendor = 0x1071, .subdevice = 0x8375, .action = VIA_DXS_NO_VRA }, /* Vobis/Yakumo/Mitac notebook */
2354                 { .subvendor = 0x1071, .subdevice = 0x8399, .action = VIA_DXS_NO_VRA }, /* Umax AB 595T (VIA K8N800A - VT8237) */
2355                 { .subvendor = 0x10cf, .subdevice = 0x118e, .action = VIA_DXS_ENABLE }, /* FSC laptop */
2356                 { .subvendor = 0x1106, .subdevice = 0x4161, .action = VIA_DXS_NO_VRA }, /* ASRock K7VT2 */
2357                 { .subvendor = 0x1106, .subdevice = 0x4552, .action = VIA_DXS_NO_VRA }, /* QDI Kudoz 7X/600-6AL */
2358                 { .subvendor = 0x1106, .subdevice = 0xaa01, .action = VIA_DXS_NO_VRA }, /* EPIA MII */
2359                 { .subvendor = 0x1106, .subdevice = 0xc001, .action = VIA_DXS_SRC }, /* Insight P4-ITX */
2360                 { .subvendor = 0x1297, .subdevice = 0xa232, .action = VIA_DXS_ENABLE }, /* Shuttle ?? */
2361                 { .subvendor = 0x1297, .subdevice = 0xc160, .action = VIA_DXS_ENABLE }, /* Shuttle SK41G */
2362                 { .subvendor = 0x1458, .subdevice = 0xa002, .action = VIA_DXS_ENABLE }, /* Gigabyte GA-7VAXP */
2363                 { .subvendor = 0x1462, .subdevice = 0x0080, .action = VIA_DXS_SRC }, /* MSI K8T Neo-FIS2R */
2364                 { .subvendor = 0x1462, .subdevice = 0x0430, .action = VIA_DXS_SRC }, /* MSI 7142 (K8MM-V) */
2365                 { .subvendor = 0x1462, .subdevice = 0x0470, .action = VIA_DXS_SRC }, /* MSI KT880 Delta-FSR */
2366                 { .subvendor = 0x1462, .subdevice = 0x3800, .action = VIA_DXS_ENABLE }, /* MSI KT266 */
2367                 { .subvendor = 0x1462, .subdevice = 0x5901, .action = VIA_DXS_NO_VRA }, /* MSI KT6 Delta-SR */
2368                 { .subvendor = 0x1462, .subdevice = 0x7023, .action = VIA_DXS_NO_VRA }, /* MSI K8T Neo2-FI */
2369                 { .subvendor = 0x1462, .subdevice = 0x7120, .action = VIA_DXS_ENABLE }, /* MSI KT4V */
2370                 { .subvendor = 0x1462, .subdevice = 0x7142, .action = VIA_DXS_ENABLE }, /* MSI K8MM-V */
2371                 { .subvendor = 0x1462, .subdevice = 0xb012, .action = VIA_DXS_SRC }, /* P4M800/VIA8237R */
2372                 { .subvendor = 0x147b, .subdevice = 0x1401, .action = VIA_DXS_ENABLE }, /* ABIT KD7(-RAID) */
2373                 { .subvendor = 0x147b, .subdevice = 0x1411, .action = VIA_DXS_ENABLE }, /* ABIT VA-20 */
2374                 { .subvendor = 0x147b, .subdevice = 0x1413, .action = VIA_DXS_ENABLE }, /* ABIT KV8 Pro */
2375                 { .subvendor = 0x147b, .subdevice = 0x1415, .action = VIA_DXS_NO_VRA }, /* Abit AV8 */
2376                 { .subvendor = 0x14ff, .subdevice = 0x0403, .action = VIA_DXS_ENABLE }, /* Twinhead mobo */
2377                 { .subvendor = 0x14ff, .subdevice = 0x0408, .action = VIA_DXS_SRC }, /* Twinhead laptop */
2378                 { .subvendor = 0x1558, .subdevice = 0x4701, .action = VIA_DXS_SRC }, /* Clevo D470 */
2379                 { .subvendor = 0x1584, .subdevice = 0x8120, .action = VIA_DXS_ENABLE }, /* Gericom/Targa/Vobis/Uniwill laptop */
2380                 { .subvendor = 0x1584, .subdevice = 0x8123, .action = VIA_DXS_NO_VRA }, /* Uniwill (Targa Visionary XP-210) */
2381                 { .subvendor = 0x161f, .subdevice = 0x202b, .action = VIA_DXS_NO_VRA }, /* Amira Note book */
2382                 { .subvendor = 0x161f, .subdevice = 0x2032, .action = VIA_DXS_48K }, /* m680x machines */
2383                 { .subvendor = 0x1631, .subdevice = 0xe004, .action = VIA_DXS_ENABLE }, /* Easy Note 3174, Packard Bell */
2384                 { .subvendor = 0x1695, .subdevice = 0x3005, .action = VIA_DXS_ENABLE }, /* EPoX EP-8K9A */
2385                 { .subvendor = 0x1695, .subdevice = 0x300c, .action = VIA_DXS_SRC }, /* EPoX EP-8KRAI */
2386                 { .subvendor = 0x1695, .subdevice = 0x300e, .action = VIA_DXS_SRC }, /* EPoX 9HEAI */
2387                 { .subvendor = 0x16f3, .subdevice = 0x6405, .action = VIA_DXS_SRC }, /* Jetway K8M8MS */
2388                 { .subvendor = 0x1734, .subdevice = 0x1078, .action = VIA_DXS_SRC }, /* FSC Amilo L7300 */
2389                 { .subvendor = 0x1734, .subdevice = 0x1093, .action = VIA_DXS_SRC }, /* FSC */
2390                 { .subvendor = 0x1849, .subdevice = 0x3059, .action = VIA_DXS_NO_VRA }, /* ASRock K7VM2 */
2391                 { .subvendor = 0x1849, .subdevice = 0x9739, .action = VIA_DXS_SRC }, /* ASRock mobo(?) */
2392                 { .subvendor = 0x1849, .subdevice = 0x9761, .action = VIA_DXS_SRC }, /* ASRock mobo(?) */
2393                 { .subvendor = 0x1919, .subdevice = 0x200a, .action = VIA_DXS_NO_VRA }, /* Soltek SL-K8Tpro-939 */
2394                 { .subvendor = 0x4005, .subdevice = 0x4710, .action = VIA_DXS_SRC },    /* MSI K7T266 Pro2 (MS-6380 V2.0) BIOS 3.7 */
2395                 { } /* terminator */
2396         };
2397         struct dxs_whitelist *w;
2398         unsigned short subsystem_vendor;
2399         unsigned short subsystem_device;
2400
2401         pci_read_config_word(pci, PCI_SUBSYSTEM_VENDOR_ID, &subsystem_vendor);
2402         pci_read_config_word(pci, PCI_SUBSYSTEM_ID, &subsystem_device);
2403
2404         for (w = whitelist; w->subvendor; w++) {
2405                 if (w->subvendor != subsystem_vendor)
2406                         continue;
2407                 if (w->mask) {
2408                         if ((w->mask & subsystem_device) == w->subdevice)
2409                                 return w->action;
2410                 } else {
2411                         if (subsystem_device == w->subdevice)
2412                                 return w->action;
2413                 }
2414         }
2415
2416         /* for newer revision, default to DXS_SRC */
2417         if (revision >= VIA_REV_8235)
2418                 return VIA_DXS_SRC;
2419
2420         /*
2421          * not detected, try 48k rate only to be sure.
2422          */
2423         printk(KERN_INFO "via82xx: Assuming DXS channels with 48k fixed sample rate.\n");
2424         printk(KERN_INFO "         Please try dxs_support=5 option\n");
2425         printk(KERN_INFO "         and report if it works on your machine.\n");
2426         printk(KERN_INFO "         For more details, read ALSA-Configuration.txt.\n");
2427         return VIA_DXS_48K;
2428 };
2429
2430 static int __devinit snd_via82xx_probe(struct pci_dev *pci,
2431                                        const struct pci_device_id *pci_id)
2432 {
2433         struct snd_card *card;
2434         struct via82xx *chip;
2435         unsigned char revision;
2436         int chip_type = 0, card_type;
2437         unsigned int i;
2438         int err;
2439
2440         card = snd_card_new(index, id, THIS_MODULE, 0);
2441         if (card == NULL)
2442                 return -ENOMEM;
2443
2444         card_type = pci_id->driver_data;
2445         pci_read_config_byte(pci, PCI_REVISION_ID, &revision);
2446         switch (card_type) {
2447         case TYPE_CARD_VIA686:
2448                 strcpy(card->driver, "VIA686A");
2449                 sprintf(card->shortname, "VIA 82C686A/B rev%x", revision);
2450                 chip_type = TYPE_VIA686;
2451                 break;
2452         case TYPE_CARD_VIA8233:
2453                 chip_type = TYPE_VIA8233;
2454                 sprintf(card->shortname, "VIA 823x rev%x", revision);
2455                 for (i = 0; i < ARRAY_SIZE(via823x_cards); i++) {
2456                         if (revision == via823x_cards[i].revision) {
2457                                 chip_type = via823x_cards[i].type;
2458                                 strcpy(card->shortname, via823x_cards[i].name);
2459                                 break;
2460                         }
2461                 }
2462                 if (chip_type != TYPE_VIA8233A) {
2463                         if (dxs_support == VIA_DXS_AUTO)
2464                                 dxs_support = check_dxs_list(pci, revision);
2465                         /* force to use VIA8233 or 8233A model according to
2466                          * dxs_support module option
2467                          */
2468                         if (dxs_support == VIA_DXS_DISABLE)
2469                                 chip_type = TYPE_VIA8233A;
2470                         else
2471                                 chip_type = TYPE_VIA8233;
2472                 }
2473                 if (chip_type == TYPE_VIA8233A)
2474                         strcpy(card->driver, "VIA8233A");
2475                 else if (revision >= VIA_REV_8237)
2476                         strcpy(card->driver, "VIA8237"); /* no slog assignment */
2477                 else
2478                         strcpy(card->driver, "VIA8233");
2479                 break;
2480         default:
2481                 snd_printk(KERN_ERR "invalid card type %d\n", card_type);
2482                 err = -EINVAL;
2483                 goto __error;
2484         }
2485                 
2486         if ((err = snd_via82xx_create(card, pci, chip_type, revision,
2487                                       ac97_clock, &chip)) < 0)
2488                 goto __error;
2489         card->private_data = chip;
2490         if ((err = snd_via82xx_mixer_new(chip, ac97_quirk)) < 0)
2491                 goto __error;
2492
2493         if (chip_type == TYPE_VIA686) {
2494                 if ((err = snd_via686_pcm_new(chip)) < 0 ||
2495                     (err = snd_via686_init_misc(chip)) < 0)
2496                         goto __error;
2497         } else {
2498                 if (chip_type == TYPE_VIA8233A) {
2499                         if ((err = snd_via8233a_pcm_new(chip)) < 0)
2500                                 goto __error;
2501                         // chip->dxs_fixed = 1; /* FIXME: use 48k for DXS #3? */
2502                 } else {
2503                         if ((err = snd_via8233_pcm_new(chip)) < 0)
2504                                 goto __error;
2505                         if (dxs_support == VIA_DXS_48K)
2506                                 chip->dxs_fixed = 1;
2507                         else if (dxs_support == VIA_DXS_NO_VRA)
2508                                 chip->no_vra = 1;
2509                         else if (dxs_support == VIA_DXS_SRC) {
2510                                 chip->no_vra = 1;
2511                                 chip->dxs_src = 1;
2512                         }
2513                 }
2514                 if ((err = snd_via8233_init_misc(chip)) < 0)
2515                         goto __error;
2516         }
2517
2518         /* disable interrupts */
2519         for (i = 0; i < chip->num_devs; i++)
2520                 snd_via82xx_channel_reset(chip, &chip->devs[i]);
2521
2522         snprintf(card->longname, sizeof(card->longname),
2523                  "%s with %s at %#lx, irq %d", card->shortname,
2524                  snd_ac97_get_short_name(chip->ac97), chip->port, chip->irq);
2525
2526         snd_via82xx_proc_init(chip);
2527
2528         if ((err = snd_card_register(card)) < 0) {
2529                 snd_card_free(card);
2530                 return err;
2531         }
2532         pci_set_drvdata(pci, card);
2533         return 0;
2534
2535  __error:
2536         snd_card_free(card);
2537         return err;
2538 }
2539
2540 static void __devexit snd_via82xx_remove(struct pci_dev *pci)
2541 {
2542         snd_card_free(pci_get_drvdata(pci));
2543         pci_set_drvdata(pci, NULL);
2544 }
2545
2546 static struct pci_driver driver = {
2547         .name = "VIA 82xx Audio",
2548         .id_table = snd_via82xx_ids,
2549         .probe = snd_via82xx_probe,
2550         .remove = __devexit_p(snd_via82xx_remove),
2551 #ifdef CONFIG_PM
2552         .suspend = snd_via82xx_suspend,
2553         .resume = snd_via82xx_resume,
2554 #endif
2555 };
2556
2557 static int __init alsa_card_via82xx_init(void)
2558 {
2559         return pci_register_driver(&driver);
2560 }
2561
2562 static void __exit alsa_card_via82xx_exit(void)
2563 {
2564         pci_unregister_driver(&driver);
2565 }
2566
2567 module_init(alsa_card_via82xx_init)
2568 module_exit(alsa_card_via82xx_exit)