Version:  2.0.40 2.2.26 2.4.37 2.6.39 3.0 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 3.10 3.11 3.12 3.13 3.14 3.15

Linux/sound/pci/via82xx.c

  1 /*
  2  *   ALSA driver for VIA VT82xx (South Bridge)
  3  *
  4  *   VT82C686A/B/C, VT8233A/C, VT8235
  5  *
  6  *      Copyright (c) 2000 Jaroslav Kysela <perex@perex.cz>
  7  *                         Tjeerd.Mulder <Tjeerd.Mulder@fujitsu-siemens.com>
  8  *                    2002 Takashi Iwai <tiwai@suse.de>
  9  *
 10  *   This program is free software; you can redistribute it and/or modify
 11  *   it under the terms of the GNU General Public License as published by
 12  *   the Free Software Foundation; either version 2 of the License, or
 13  *   (at your option) any later version.
 14  *
 15  *   This program is distributed in the hope that it will be useful,
 16  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
 17  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 18  *   GNU General Public License for more details.
 19  *
 20  *   You should have received a copy of the GNU General Public License
 21  *   along with this program; if not, write to the Free Software
 22  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
 23  *
 24  */
 25 
 26 /*
 27  * Changes:
 28  *
 29  * Dec. 19, 2002        Takashi Iwai <tiwai@suse.de>
 30  *      - use the DSX channels for the first pcm playback.
 31  *        (on VIA8233, 8233C and 8235 only)
 32  *        this will allow you play simultaneously up to 4 streams.
 33  *        multi-channel playback is assigned to the second device
 34  *        on these chips.
 35  *      - support the secondary capture (on VIA8233/C,8235)
 36  *      - SPDIF support
 37  *        the DSX3 channel can be used for SPDIF output.
 38  *        on VIA8233A, this channel is assigned to the second pcm
 39  *        playback.
 40  *        the card config of alsa-lib will assign the correct
 41  *        device for applications.
 42  *      - clean up the code, separate low-level initialization
 43  *        routines for each chipset.
 44  *
 45  * Sep. 26, 2005        Karsten Wiese <annabellesgarden@yahoo.de>
 46  *      - Optimize position calculation for the 823x chips. 
 47  */
 48 
 49 #include <asm/io.h>
 50 #include <linux/delay.h>
 51 #include <linux/interrupt.h>
 52 #include <linux/init.h>
 53 #include <linux/pci.h>
 54 #include <linux/slab.h>
 55 #include <linux/gameport.h>
 56 #include <linux/module.h>
 57 #include <sound/core.h>
 58 #include <sound/pcm.h>
 59 #include <sound/pcm_params.h>
 60 #include <sound/info.h>
 61 #include <sound/tlv.h>
 62 #include <sound/ac97_codec.h>
 63 #include <sound/mpu401.h>
 64 #include <sound/initval.h>
 65 
 66 #if 0
 67 #define POINTER_DEBUG
 68 #endif
 69 
 70 MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
 71 MODULE_DESCRIPTION("VIA VT82xx audio");
 72 MODULE_LICENSE("GPL");
 73 MODULE_SUPPORTED_DEVICE("{{VIA,VT82C686A/B/C,pci},{VIA,VT8233A/C,8235}}");
 74 
 75 #if defined(CONFIG_GAMEPORT) || (defined(MODULE) && defined(CONFIG_GAMEPORT_MODULE))
 76 #define SUPPORT_JOYSTICK 1
 77 #endif
 78 
 79 static int index = SNDRV_DEFAULT_IDX1;  /* Index 0-MAX */
 80 static char *id = SNDRV_DEFAULT_STR1;   /* ID for this card */
 81 static long mpu_port;
 82 #ifdef SUPPORT_JOYSTICK
 83 static bool joystick;
 84 #endif
 85 static int ac97_clock = 48000;
 86 static char *ac97_quirk;
 87 static int dxs_support;
 88 static int dxs_init_volume = 31;
 89 static int nodelay;
 90 
 91 module_param(index, int, 0444);
 92 MODULE_PARM_DESC(index, "Index value for VIA 82xx bridge.");
 93 module_param(id, charp, 0444);
 94 MODULE_PARM_DESC(id, "ID string for VIA 82xx bridge.");
 95 module_param(mpu_port, long, 0444);
 96 MODULE_PARM_DESC(mpu_port, "MPU-401 port. (VT82C686x only)");
 97 #ifdef SUPPORT_JOYSTICK
 98 module_param(joystick, bool, 0444);
 99 MODULE_PARM_DESC(joystick, "Enable joystick. (VT82C686x only)");
100 #endif
101 module_param(ac97_clock, int, 0444);
102 MODULE_PARM_DESC(ac97_clock, "AC'97 codec clock (default 48000Hz).");
103 module_param(ac97_quirk, charp, 0444);
104 MODULE_PARM_DESC(ac97_quirk, "AC'97 workaround for strange hardware.");
105 module_param(dxs_support, int, 0444);
106 MODULE_PARM_DESC(dxs_support, "Support for DXS channels (0 = auto, 1 = enable, 2 = disable, 3 = 48k only, 4 = no VRA, 5 = enable any sample rate)");
107 module_param(dxs_init_volume, int, 0644);
108 MODULE_PARM_DESC(dxs_init_volume, "initial DXS volume (0-31)");
109 module_param(nodelay, int, 0444);
110 MODULE_PARM_DESC(nodelay, "Disable 500ms init delay");
111 
112 /* just for backward compatibility */
113 static bool enable;
114 module_param(enable, bool, 0444);
115 
116 
117 /* revision numbers for via686 */
118 #define VIA_REV_686_A           0x10
119 #define VIA_REV_686_B           0x11
120 #define VIA_REV_686_C           0x12
121 #define VIA_REV_686_D           0x13
122 #define VIA_REV_686_E           0x14
123 #define VIA_REV_686_H           0x20
124 
125 /* revision numbers for via8233 */
126 #define VIA_REV_PRE_8233        0x10    /* not in market */
127 #define VIA_REV_8233C           0x20    /* 2 rec, 4 pb, 1 multi-pb */
128 #define VIA_REV_8233            0x30    /* 2 rec, 4 pb, 1 multi-pb, spdif */
129 #define VIA_REV_8233A           0x40    /* 1 rec, 1 multi-pb, spdf */
130 #define VIA_REV_8235            0x50    /* 2 rec, 4 pb, 1 multi-pb, spdif */
131 #define VIA_REV_8237            0x60
132 #define VIA_REV_8251            0x70
133 
134 /*
135  *  Direct registers
136  */
137 
138 #define VIAREG(via, x) ((via)->port + VIA_REG_##x)
139 #define VIADEV_REG(viadev, x) ((viadev)->port + VIA_REG_##x)
140 
141 /* common offsets */
142 #define VIA_REG_OFFSET_STATUS           0x00    /* byte - channel status */
143 #define   VIA_REG_STAT_ACTIVE           0x80    /* RO */
144 #define   VIA8233_SHADOW_STAT_ACTIVE    0x08    /* RO */
145 #define   VIA_REG_STAT_PAUSED           0x40    /* RO */
146 #define   VIA_REG_STAT_TRIGGER_QUEUED   0x08    /* RO */
147 #define   VIA_REG_STAT_STOPPED          0x04    /* RWC */
148 #define   VIA_REG_STAT_EOL              0x02    /* RWC */
149 #define   VIA_REG_STAT_FLAG             0x01    /* RWC */
150 #define VIA_REG_OFFSET_CONTROL          0x01    /* byte - channel control */
151 #define   VIA_REG_CTRL_START            0x80    /* WO */
152 #define   VIA_REG_CTRL_TERMINATE        0x40    /* WO */
153 #define   VIA_REG_CTRL_AUTOSTART        0x20
154 #define   VIA_REG_CTRL_PAUSE            0x08    /* RW */
155 #define   VIA_REG_CTRL_INT_STOP         0x04            
156 #define   VIA_REG_CTRL_INT_EOL          0x02
157 #define   VIA_REG_CTRL_INT_FLAG         0x01
158 #define   VIA_REG_CTRL_RESET            0x01    /* RW - probably reset? undocumented */
159 #define   VIA_REG_CTRL_INT (VIA_REG_CTRL_INT_FLAG | VIA_REG_CTRL_INT_EOL | VIA_REG_CTRL_AUTOSTART)
160 #define VIA_REG_OFFSET_TYPE             0x02    /* byte - channel type (686 only) */
161 #define   VIA_REG_TYPE_AUTOSTART        0x80    /* RW - autostart at EOL */
162 #define   VIA_REG_TYPE_16BIT            0x20    /* RW */
163 #define   VIA_REG_TYPE_STEREO           0x10    /* RW */
164 #define   VIA_REG_TYPE_INT_LLINE        0x00
165 #define   VIA_REG_TYPE_INT_LSAMPLE      0x04
166 #define   VIA_REG_TYPE_INT_LESSONE      0x08
167 #define   VIA_REG_TYPE_INT_MASK         0x0c
168 #define   VIA_REG_TYPE_INT_EOL          0x02
169 #define   VIA_REG_TYPE_INT_FLAG         0x01
170 #define VIA_REG_OFFSET_TABLE_PTR        0x04    /* dword - channel table pointer */
171 #define VIA_REG_OFFSET_CURR_PTR         0x04    /* dword - channel current pointer */
172 #define VIA_REG_OFFSET_STOP_IDX         0x08    /* dword - stop index, channel type, sample rate */
173 #define   VIA8233_REG_TYPE_16BIT        0x00200000      /* RW */
174 #define   VIA8233_REG_TYPE_STEREO       0x00100000      /* RW */
175 #define VIA_REG_OFFSET_CURR_COUNT       0x0c    /* dword - channel current count (24 bit) */
176 #define VIA_REG_OFFSET_CURR_INDEX       0x0f    /* byte - channel current index (for via8233 only) */
177 
178 #define DEFINE_VIA_REGSET(name,val) \
179 enum {\
180         VIA_REG_##name##_STATUS         = (val),\
181         VIA_REG_##name##_CONTROL        = (val) + 0x01,\
182         VIA_REG_##name##_TYPE           = (val) + 0x02,\
183         VIA_REG_##name##_TABLE_PTR      = (val) + 0x04,\
184         VIA_REG_##name##_CURR_PTR       = (val) + 0x04,\
185         VIA_REG_##name##_STOP_IDX       = (val) + 0x08,\
186         VIA_REG_##name##_CURR_COUNT     = (val) + 0x0c,\
187 }
188 
189 /* playback block */
190 DEFINE_VIA_REGSET(PLAYBACK, 0x00);
191 DEFINE_VIA_REGSET(CAPTURE, 0x10);
192 DEFINE_VIA_REGSET(FM, 0x20);
193 
194 /* AC'97 */
195 #define VIA_REG_AC97                    0x80    /* dword */
196 #define   VIA_REG_AC97_CODEC_ID_MASK    (3<<30)
197 #define   VIA_REG_AC97_CODEC_ID_SHIFT   30
198 #define   VIA_REG_AC97_CODEC_ID_PRIMARY 0x00
199 #define   VIA_REG_AC97_CODEC_ID_SECONDARY 0x01
200 #define   VIA_REG_AC97_SECONDARY_VALID  (1<<27)
201 #define   VIA_REG_AC97_PRIMARY_VALID    (1<<25)
202 #define   VIA_REG_AC97_BUSY             (1<<24)
203 #define   VIA_REG_AC97_READ             (1<<23)
204 #define   VIA_REG_AC97_CMD_SHIFT        16
205 #define   VIA_REG_AC97_CMD_MASK         0x7e
206 #define   VIA_REG_AC97_DATA_SHIFT       0
207 #define   VIA_REG_AC97_DATA_MASK        0xffff
208 
209 #define VIA_REG_SGD_SHADOW              0x84    /* dword */
210 /* via686 */
211 #define   VIA_REG_SGD_STAT_PB_FLAG      (1<<0)
212 #define   VIA_REG_SGD_STAT_CP_FLAG      (1<<1)
213 #define   VIA_REG_SGD_STAT_FM_FLAG      (1<<2)
214 #define   VIA_REG_SGD_STAT_PB_EOL       (1<<4)
215 #define   VIA_REG_SGD_STAT_CP_EOL       (1<<5)
216 #define   VIA_REG_SGD_STAT_FM_EOL       (1<<6)
217 #define   VIA_REG_SGD_STAT_PB_STOP      (1<<8)
218 #define   VIA_REG_SGD_STAT_CP_STOP      (1<<9)
219 #define   VIA_REG_SGD_STAT_FM_STOP      (1<<10)
220 #define   VIA_REG_SGD_STAT_PB_ACTIVE    (1<<12)
221 #define   VIA_REG_SGD_STAT_CP_ACTIVE    (1<<13)
222 #define   VIA_REG_SGD_STAT_FM_ACTIVE    (1<<14)
223 /* via8233 */
224 #define   VIA8233_REG_SGD_STAT_FLAG     (1<<0)
225 #define   VIA8233_REG_SGD_STAT_EOL      (1<<1)
226 #define   VIA8233_REG_SGD_STAT_STOP     (1<<2)
227 #define   VIA8233_REG_SGD_STAT_ACTIVE   (1<<3)
228 #define VIA8233_INTR_MASK(chan) ((VIA8233_REG_SGD_STAT_FLAG|VIA8233_REG_SGD_STAT_EOL) << ((chan) * 4))
229 #define   VIA8233_REG_SGD_CHAN_SDX      0
230 #define   VIA8233_REG_SGD_CHAN_MULTI    4
231 #define   VIA8233_REG_SGD_CHAN_REC      6
232 #define   VIA8233_REG_SGD_CHAN_REC1     7
233 
234 #define VIA_REG_GPI_STATUS              0x88
235 #define VIA_REG_GPI_INTR                0x8c
236 
237 /* multi-channel and capture registers for via8233 */
238 DEFINE_VIA_REGSET(MULTPLAY, 0x40);
239 DEFINE_VIA_REGSET(CAPTURE_8233, 0x60);
240 
241 /* via8233-specific registers */
242 #define VIA_REG_OFS_PLAYBACK_VOLUME_L   0x02    /* byte */
243 #define VIA_REG_OFS_PLAYBACK_VOLUME_R   0x03    /* byte */
244 #define VIA_REG_OFS_MULTPLAY_FORMAT     0x02    /* byte - format and channels */
245 #define   VIA_REG_MULTPLAY_FMT_8BIT     0x00
246 #define   VIA_REG_MULTPLAY_FMT_16BIT    0x80
247 #define   VIA_REG_MULTPLAY_FMT_CH_MASK  0x70    /* # channels << 4 (valid = 1,2,4,6) */
248 #define VIA_REG_OFS_CAPTURE_FIFO        0x02    /* byte - bit 6 = fifo  enable */
249 #define   VIA_REG_CAPTURE_FIFO_ENABLE   0x40
250 
251 #define VIA_DXS_MAX_VOLUME              31      /* max. volume (attenuation) of reg 0x32/33 */
252 
253 #define VIA_REG_CAPTURE_CHANNEL         0x63    /* byte - input select */
254 #define   VIA_REG_CAPTURE_CHANNEL_MIC   0x4
255 #define   VIA_REG_CAPTURE_CHANNEL_LINE  0
256 #define   VIA_REG_CAPTURE_SELECT_CODEC  0x03    /* recording source codec (0 = primary) */
257 
258 #define VIA_TBL_BIT_FLAG        0x40000000
259 #define VIA_TBL_BIT_EOL         0x80000000
260 
261 /* pci space */
262 #define VIA_ACLINK_STAT         0x40
263 #define  VIA_ACLINK_C11_READY   0x20
264 #define  VIA_ACLINK_C10_READY   0x10
265 #define  VIA_ACLINK_C01_READY   0x04 /* secondary codec ready */
266 #define  VIA_ACLINK_LOWPOWER    0x02 /* low-power state */
267 #define  VIA_ACLINK_C00_READY   0x01 /* primary codec ready */
268 #define VIA_ACLINK_CTRL         0x41
269 #define  VIA_ACLINK_CTRL_ENABLE 0x80 /* 0: disable, 1: enable */
270 #define  VIA_ACLINK_CTRL_RESET  0x40 /* 0: assert, 1: de-assert */
271 #define  VIA_ACLINK_CTRL_SYNC   0x20 /* 0: release SYNC, 1: force SYNC hi */
272 #define  VIA_ACLINK_CTRL_SDO    0x10 /* 0: release SDO, 1: force SDO hi */
273 #define  VIA_ACLINK_CTRL_VRA    0x08 /* 0: disable VRA, 1: enable VRA */
274 #define  VIA_ACLINK_CTRL_PCM    0x04 /* 0: disable PCM, 1: enable PCM */
275 #define  VIA_ACLINK_CTRL_FM     0x02 /* via686 only */
276 #define  VIA_ACLINK_CTRL_SB     0x01 /* via686 only */
277 #define  VIA_ACLINK_CTRL_INIT   (VIA_ACLINK_CTRL_ENABLE|\
278                                  VIA_ACLINK_CTRL_RESET|\
279                                  VIA_ACLINK_CTRL_PCM|\
280                                  VIA_ACLINK_CTRL_VRA)
281 #define VIA_FUNC_ENABLE         0x42
282 #define  VIA_FUNC_MIDI_PNP      0x80 /* FIXME: it's 0x40 in the datasheet! */
283 #define  VIA_FUNC_MIDI_IRQMASK  0x40 /* FIXME: not documented! */
284 #define  VIA_FUNC_RX2C_WRITE    0x20
285 #define  VIA_FUNC_SB_FIFO_EMPTY 0x10
286 #define  VIA_FUNC_ENABLE_GAME   0x08
287 #define  VIA_FUNC_ENABLE_FM     0x04
288 #define  VIA_FUNC_ENABLE_MIDI   0x02
289 #define  VIA_FUNC_ENABLE_SB     0x01
290 #define VIA_PNP_CONTROL         0x43
291 #define VIA_FM_NMI_CTRL         0x48
292 #define VIA8233_VOLCHG_CTRL     0x48
293 #define VIA8233_SPDIF_CTRL      0x49
294 #define  VIA8233_SPDIF_DX3      0x08
295 #define  VIA8233_SPDIF_SLOT_MASK        0x03
296 #define  VIA8233_SPDIF_SLOT_1011        0x00
297 #define  VIA8233_SPDIF_SLOT_34          0x01
298 #define  VIA8233_SPDIF_SLOT_78          0x02
299 #define  VIA8233_SPDIF_SLOT_69          0x03
300 
301 /*
302  */
303 
304 #define VIA_DXS_AUTO    0
305 #define VIA_DXS_ENABLE  1
306 #define VIA_DXS_DISABLE 2
307 #define VIA_DXS_48K     3
308 #define VIA_DXS_NO_VRA  4
309 #define VIA_DXS_SRC     5
310 
311 
312 /*
313  * pcm stream
314  */
315 
316 struct snd_via_sg_table {
317         unsigned int offset;
318         unsigned int size;
319 } ;
320 
321 #define VIA_TABLE_SIZE  255
322 #define VIA_MAX_BUFSIZE (1<<24)
323 
324 struct viadev {
325         unsigned int reg_offset;
326         unsigned long port;
327         int direction;  /* playback = 0, capture = 1 */
328         struct snd_pcm_substream *substream;
329         int running;
330         unsigned int tbl_entries; /* # descriptors */
331         struct snd_dma_buffer table;
332         struct snd_via_sg_table *idx_table;
333         /* for recovery from the unexpected pointer */
334         unsigned int lastpos;
335         unsigned int fragsize;
336         unsigned int bufsize;
337         unsigned int bufsize2;
338         int hwptr_done;         /* processed frame position in the buffer */
339         int in_interrupt;
340         int shadow_shift;
341 };
342 
343 
344 enum { TYPE_CARD_VIA686 = 1, TYPE_CARD_VIA8233 };
345 enum { TYPE_VIA686, TYPE_VIA8233, TYPE_VIA8233A };
346 
347 #define VIA_MAX_DEVS    7       /* 4 playback, 1 multi, 2 capture */
348 
349 struct via_rate_lock {
350         spinlock_t lock;
351         int rate;
352         int used;
353 };
354 
355 struct via82xx {
356         int irq;
357 
358         unsigned long port;
359         struct resource *mpu_res;
360         int chip_type;
361         unsigned char revision;
362 
363         unsigned char old_legacy;
364         unsigned char old_legacy_cfg;
365 #ifdef CONFIG_PM_SLEEP
366         unsigned char legacy_saved;
367         unsigned char legacy_cfg_saved;
368         unsigned char spdif_ctrl_saved;
369         unsigned char capture_src_saved[2];
370         unsigned int mpu_port_saved;
371 #endif
372 
373         unsigned char playback_volume[4][2]; /* for VIA8233/C/8235; default = 0 */
374         unsigned char playback_volume_c[2]; /* for VIA8233/C/8235; default = 0 */
375 
376         unsigned int intr_mask; /* SGD_SHADOW mask to check interrupts */
377 
378         struct pci_dev *pci;
379         struct snd_card *card;
380 
381         unsigned int num_devs;
382         unsigned int playback_devno, multi_devno, capture_devno;
383         struct viadev devs[VIA_MAX_DEVS];
384         struct via_rate_lock rates[2]; /* playback and capture */
385         unsigned int dxs_fixed: 1;      /* DXS channel accepts only 48kHz */
386         unsigned int no_vra: 1;         /* no need to set VRA on DXS channels */
387         unsigned int dxs_src: 1;        /* use full SRC capabilities of DXS */
388         unsigned int spdif_on: 1;       /* only spdif rates work to external DACs */
389 
390         struct snd_pcm *pcms[2];
391         struct snd_rawmidi *rmidi;
392         struct snd_kcontrol *dxs_controls[4];
393 
394         struct snd_ac97_bus *ac97_bus;
395         struct snd_ac97 *ac97;
396         unsigned int ac97_clock;
397         unsigned int ac97_secondary;    /* secondary AC'97 codec is present */
398 
399         spinlock_t reg_lock;
400         struct snd_info_entry *proc_entry;
401 
402 #ifdef SUPPORT_JOYSTICK
403         struct gameport *gameport;
404 #endif
405 };
406 
407 static DEFINE_PCI_DEVICE_TABLE(snd_via82xx_ids) = {
408         /* 0x1106, 0x3058 */
409         { PCI_VDEVICE(VIA, PCI_DEVICE_ID_VIA_82C686_5), TYPE_CARD_VIA686, },    /* 686A */
410         /* 0x1106, 0x3059 */
411         { PCI_VDEVICE(VIA, PCI_DEVICE_ID_VIA_8233_5), TYPE_CARD_VIA8233, },     /* VT8233 */
412         { 0, }
413 };
414 
415 MODULE_DEVICE_TABLE(pci, snd_via82xx_ids);
416 
417 /*
418  */
419 
420 /*
421  * allocate and initialize the descriptor buffers
422  * periods = number of periods
423  * fragsize = period size in bytes
424  */
425 static int build_via_table(struct viadev *dev, struct snd_pcm_substream *substream,
426                            struct pci_dev *pci,
427                            unsigned int periods, unsigned int fragsize)
428 {
429         unsigned int i, idx, ofs, rest;
430         struct via82xx *chip = snd_pcm_substream_chip(substream);
431 
432         if (dev->table.area == NULL) {
433                 /* the start of each lists must be aligned to 8 bytes,
434                  * but the kernel pages are much bigger, so we don't care
435                  */
436                 if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(chip->pci),
437                                         PAGE_ALIGN(VIA_TABLE_SIZE * 2 * 8),
438                                         &dev->table) < 0)
439                         return -ENOMEM;
440         }
441         if (! dev->idx_table) {
442                 dev->idx_table = kmalloc(sizeof(*dev->idx_table) * VIA_TABLE_SIZE, GFP_KERNEL);
443                 if (! dev->idx_table)
444                         return -ENOMEM;
445         }
446 
447         /* fill the entries */
448         idx = 0;
449         ofs = 0;
450         for (i = 0; i < periods; i++) {
451                 rest = fragsize;
452                 /* fill descriptors for a period.
453                  * a period can be split to several descriptors if it's
454                  * over page boundary.
455                  */
456                 do {
457                         unsigned int r;
458                         unsigned int flag;
459                         unsigned int addr;
460 
461                         if (idx >= VIA_TABLE_SIZE) {
462                                 dev_err(&pci->dev, "too much table size!\n");
463                                 return -EINVAL;
464                         }
465                         addr = snd_pcm_sgbuf_get_addr(substream, ofs);
466                         ((u32 *)dev->table.area)[idx << 1] = cpu_to_le32(addr);
467                         r = snd_pcm_sgbuf_get_chunk_size(substream, ofs, rest);
468                         rest -= r;
469                         if (! rest) {
470                                 if (i == periods - 1)
471                                         flag = VIA_TBL_BIT_EOL; /* buffer boundary */
472                                 else
473                                         flag = VIA_TBL_BIT_FLAG; /* period boundary */
474                         } else
475                                 flag = 0; /* period continues to the next */
476                         /*
477                         dev_dbg(&pci->dev,
478                                 "tbl %d: at %d  size %d (rest %d)\n",
479                                 idx, ofs, r, rest);
480                         */
481                         ((u32 *)dev->table.area)[(idx<<1) + 1] = cpu_to_le32(r | flag);
482                         dev->idx_table[idx].offset = ofs;
483                         dev->idx_table[idx].size = r;
484                         ofs += r;
485                         idx++;
486                 } while (rest > 0);
487         }
488         dev->tbl_entries = idx;
489         dev->bufsize = periods * fragsize;
490         dev->bufsize2 = dev->bufsize / 2;
491         dev->fragsize = fragsize;
492         return 0;
493 }
494 
495 
496 static int clean_via_table(struct viadev *dev, struct snd_pcm_substream *substream,
497                            struct pci_dev *pci)
498 {
499         if (dev->table.area) {
500                 snd_dma_free_pages(&dev->table);
501                 dev->table.area = NULL;
502         }
503         kfree(dev->idx_table);
504         dev->idx_table = NULL;
505         return 0;
506 }
507 
508 /*
509  *  Basic I/O
510  */
511 
512 static inline unsigned int snd_via82xx_codec_xread(struct via82xx *chip)
513 {
514         return inl(VIAREG(chip, AC97));
515 }
516  
517 static inline void snd_via82xx_codec_xwrite(struct via82xx *chip, unsigned int val)
518 {
519         outl(val, VIAREG(chip, AC97));
520 }
521  
522 static int snd_via82xx_codec_ready(struct via82xx *chip, int secondary)
523 {
524         unsigned int timeout = 1000;    /* 1ms */
525         unsigned int val;
526         
527         while (timeout-- > 0) {
528                 udelay(1);
529                 if (!((val = snd_via82xx_codec_xread(chip)) & VIA_REG_AC97_BUSY))
530                         return val & 0xffff;
531         }
532         dev_err(chip->card->dev, "codec_ready: codec %i is not ready [0x%x]\n",
533                    secondary, snd_via82xx_codec_xread(chip));
534         return -EIO;
535 }
536  
537 static int snd_via82xx_codec_valid(struct via82xx *chip, int secondary)
538 {
539         unsigned int timeout = 1000;    /* 1ms */
540         unsigned int val, val1;
541         unsigned int stat = !secondary ? VIA_REG_AC97_PRIMARY_VALID :
542                                          VIA_REG_AC97_SECONDARY_VALID;
543         
544         while (timeout-- > 0) {
545                 val = snd_via82xx_codec_xread(chip);
546                 val1 = val & (VIA_REG_AC97_BUSY | stat);
547                 if (val1 == stat)
548                         return val & 0xffff;
549                 udelay(1);
550         }
551         return -EIO;
552 }
553  
554 static void snd_via82xx_codec_wait(struct snd_ac97 *ac97)
555 {
556         struct via82xx *chip = ac97->private_data;
557         int err;
558         err = snd_via82xx_codec_ready(chip, ac97->num);
559         /* here we need to wait fairly for long time.. */
560         if (!nodelay)
561                 msleep(500);
562 }
563 
564 static void snd_via82xx_codec_write(struct snd_ac97 *ac97,
565                                     unsigned short reg,
566                                     unsigned short val)
567 {
568         struct via82xx *chip = ac97->private_data;
569         unsigned int xval;
570 
571         xval = !ac97->num ? VIA_REG_AC97_CODEC_ID_PRIMARY : VIA_REG_AC97_CODEC_ID_SECONDARY;
572         xval <<= VIA_REG_AC97_CODEC_ID_SHIFT;
573         xval |= reg << VIA_REG_AC97_CMD_SHIFT;
574         xval |= val << VIA_REG_AC97_DATA_SHIFT;
575         snd_via82xx_codec_xwrite(chip, xval);
576         snd_via82xx_codec_ready(chip, ac97->num);
577 }
578 
579 static unsigned short snd_via82xx_codec_read(struct snd_ac97 *ac97, unsigned short reg)
580 {
581         struct via82xx *chip = ac97->private_data;
582         unsigned int xval, val = 0xffff;
583         int again = 0;
584 
585         xval = ac97->num << VIA_REG_AC97_CODEC_ID_SHIFT;
586         xval |= ac97->num ? VIA_REG_AC97_SECONDARY_VALID : VIA_REG_AC97_PRIMARY_VALID;
587         xval |= VIA_REG_AC97_READ;
588         xval |= (reg & 0x7f) << VIA_REG_AC97_CMD_SHIFT;
589         while (1) {
590                 if (again++ > 3) {
591                         dev_err(chip->card->dev,
592                                 "codec_read: codec %i is not valid [0x%x]\n",
593                                    ac97->num, snd_via82xx_codec_xread(chip));
594                         return 0xffff;
595                 }
596                 snd_via82xx_codec_xwrite(chip, xval);
597                 udelay (20);
598                 if (snd_via82xx_codec_valid(chip, ac97->num) >= 0) {
599                         udelay(25);
600                         val = snd_via82xx_codec_xread(chip);
601                         break;
602                 }
603         }
604         return val & 0xffff;
605 }
606 
607 static void snd_via82xx_channel_reset(struct via82xx *chip, struct viadev *viadev)
608 {
609         outb(VIA_REG_CTRL_PAUSE | VIA_REG_CTRL_TERMINATE | VIA_REG_CTRL_RESET,
610              VIADEV_REG(viadev, OFFSET_CONTROL));
611         inb(VIADEV_REG(viadev, OFFSET_CONTROL));
612         udelay(50);
613         /* disable interrupts */
614         outb(0x00, VIADEV_REG(viadev, OFFSET_CONTROL));
615         /* clear interrupts */
616         outb(0x03, VIADEV_REG(viadev, OFFSET_STATUS));
617         outb(0x00, VIADEV_REG(viadev, OFFSET_TYPE)); /* for via686 */
618         // outl(0, VIADEV_REG(viadev, OFFSET_CURR_PTR));
619         viadev->lastpos = 0;
620         viadev->hwptr_done = 0;
621 }
622 
623 
624 /*
625  *  Interrupt handler
626  *  Used for 686 and 8233A
627  */
628 static irqreturn_t snd_via686_interrupt(int irq, void *dev_id)
629 {
630         struct via82xx *chip = dev_id;
631         unsigned int status;
632         unsigned int i;
633 
634         status = inl(VIAREG(chip, SGD_SHADOW));
635         if (! (status & chip->intr_mask)) {
636                 if (chip->rmidi)
637                         /* check mpu401 interrupt */
638                         return snd_mpu401_uart_interrupt(irq, chip->rmidi->private_data);
639                 return IRQ_NONE;
640         }
641 
642         /* check status for each stream */
643         spin_lock(&chip->reg_lock);
644         for (i = 0; i < chip->num_devs; i++) {
645                 struct viadev *viadev = &chip->devs[i];
646                 unsigned char c_status = inb(VIADEV_REG(viadev, OFFSET_STATUS));
647                 if (! (c_status & (VIA_REG_STAT_EOL|VIA_REG_STAT_FLAG|VIA_REG_STAT_STOPPED)))
648                         continue;
649                 if (viadev->substream && viadev->running) {
650                         /*
651                          * Update hwptr_done based on 'period elapsed'
652                          * interrupts. We'll use it, when the chip returns 0 
653                          * for OFFSET_CURR_COUNT.
654                          */
655                         if (c_status & VIA_REG_STAT_EOL)
656                                 viadev->hwptr_done = 0;
657                         else
658                                 viadev->hwptr_done += viadev->fragsize;
659                         viadev->in_interrupt = c_status;
660                         spin_unlock(&chip->reg_lock);
661                         snd_pcm_period_elapsed(viadev->substream);
662                         spin_lock(&chip->reg_lock);
663                         viadev->in_interrupt = 0;
664                 }
665                 outb(c_status, VIADEV_REG(viadev, OFFSET_STATUS)); /* ack */
666         }
667         spin_unlock(&chip->reg_lock);
668         return IRQ_HANDLED;
669 }
670 
671 /*
672  *  Interrupt handler
673  */
674 static irqreturn_t snd_via8233_interrupt(int irq, void *dev_id)
675 {
676         struct via82xx *chip = dev_id;
677         unsigned int status;
678         unsigned int i;
679         int irqreturn = 0;
680 
681         /* check status for each stream */
682         spin_lock(&chip->reg_lock);
683         status = inl(VIAREG(chip, SGD_SHADOW));
684 
685         for (i = 0; i < chip->num_devs; i++) {
686                 struct viadev *viadev = &chip->devs[i];
687                 struct snd_pcm_substream *substream;
688                 unsigned char c_status, shadow_status;
689 
690                 shadow_status = (status >> viadev->shadow_shift) &
691                         (VIA8233_SHADOW_STAT_ACTIVE|VIA_REG_STAT_EOL|
692                          VIA_REG_STAT_FLAG);
693                 c_status = shadow_status & (VIA_REG_STAT_EOL|VIA_REG_STAT_FLAG);
694                 if (!c_status)
695                         continue;
696 
697                 substream = viadev->substream;
698                 if (substream && viadev->running) {
699                         /*
700                          * Update hwptr_done based on 'period elapsed'
701                          * interrupts. We'll use it, when the chip returns 0 
702                          * for OFFSET_CURR_COUNT.
703                          */
704                         if (c_status & VIA_REG_STAT_EOL)
705                                 viadev->hwptr_done = 0;
706                         else
707                                 viadev->hwptr_done += viadev->fragsize;
708                         viadev->in_interrupt = c_status;
709                         if (shadow_status & VIA8233_SHADOW_STAT_ACTIVE)
710                                 viadev->in_interrupt |= VIA_REG_STAT_ACTIVE;
711                         spin_unlock(&chip->reg_lock);
712 
713                         snd_pcm_period_elapsed(substream);
714 
715                         spin_lock(&chip->reg_lock);
716                         viadev->in_interrupt = 0;
717                 }
718                 outb(c_status, VIADEV_REG(viadev, OFFSET_STATUS)); /* ack */
719                 irqreturn = 1;
720         }
721         spin_unlock(&chip->reg_lock);
722         return IRQ_RETVAL(irqreturn);
723 }
724 
725 /*
726  *  PCM callbacks
727  */
728 
729 /*
730  * trigger callback
731  */
732 static int snd_via82xx_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
733 {
734         struct via82xx *chip = snd_pcm_substream_chip(substream);
735         struct viadev *viadev = substream->runtime->private_data;
736         unsigned char val;
737 
738         if (chip->chip_type != TYPE_VIA686)
739                 val = VIA_REG_CTRL_INT;
740         else
741                 val = 0;
742         switch (cmd) {
743         case SNDRV_PCM_TRIGGER_START:
744         case SNDRV_PCM_TRIGGER_RESUME:
745                 val |= VIA_REG_CTRL_START;
746                 viadev->running = 1;
747                 break;
748         case SNDRV_PCM_TRIGGER_STOP:
749         case SNDRV_PCM_TRIGGER_SUSPEND:
750                 val = VIA_REG_CTRL_TERMINATE;
751                 viadev->running = 0;
752                 break;
753         case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
754                 val |= VIA_REG_CTRL_PAUSE;
755                 viadev->running = 0;
756                 break;
757         case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
758                 viadev->running = 1;
759                 break;
760         default:
761                 return -EINVAL;
762         }
763         outb(val, VIADEV_REG(viadev, OFFSET_CONTROL));
764         if (cmd == SNDRV_PCM_TRIGGER_STOP)
765                 snd_via82xx_channel_reset(chip, viadev);
766         return 0;
767 }
768 
769 
770 /*
771  * pointer callbacks
772  */
773 
774 /*
775  * calculate the linear position at the given sg-buffer index and the rest count
776  */
777 
778 #define check_invalid_pos(viadev,pos) \
779         ((pos) < viadev->lastpos && ((pos) >= viadev->bufsize2 ||\
780                                      viadev->lastpos < viadev->bufsize2))
781 
782 static inline unsigned int calc_linear_pos(struct via82xx *chip,
783                                            struct viadev *viadev,
784                                            unsigned int idx,
785                                            unsigned int count)
786 {
787         unsigned int size, base, res;
788 
789         size = viadev->idx_table[idx].size;
790         base = viadev->idx_table[idx].offset;
791         res = base + size - count;
792         if (res >= viadev->bufsize)
793                 res -= viadev->bufsize;
794 
795         /* check the validity of the calculated position */
796         if (size < count) {
797                 dev_dbg(chip->card->dev,
798                         "invalid via82xx_cur_ptr (size = %d, count = %d)\n",
799                            (int)size, (int)count);
800                 res = viadev->lastpos;
801         } else {
802                 if (! count) {
803                         /* Some mobos report count = 0 on the DMA boundary,
804                          * i.e. count = size indeed.
805                          * Let's check whether this step is above the expected size.
806                          */
807                         int delta = res - viadev->lastpos;
808                         if (delta < 0)
809                                 delta += viadev->bufsize;
810                         if ((unsigned int)delta > viadev->fragsize)
811                                 res = base;
812                 }
813                 if (check_invalid_pos(viadev, res)) {
814 #ifdef POINTER_DEBUG
815                         dev_dbg(chip->card->dev,
816                                 "fail: idx = %i/%i, lastpos = 0x%x, bufsize2 = 0x%x, offsize = 0x%x, size = 0x%x, count = 0x%x\n",
817                                 idx, viadev->tbl_entries,
818                                viadev->lastpos, viadev->bufsize2,
819                                viadev->idx_table[idx].offset,
820                                viadev->idx_table[idx].size, count);
821 #endif
822                         /* count register returns full size when end of buffer is reached */
823                         res = base + size;
824                         if (check_invalid_pos(viadev, res)) {
825                                 dev_dbg(chip->card->dev,
826                                         "invalid via82xx_cur_ptr (2), using last valid pointer\n");
827                                 res = viadev->lastpos;
828                         }
829                 }
830         }
831         return res;
832 }
833 
834 /*
835  * get the current pointer on via686
836  */
837 static snd_pcm_uframes_t snd_via686_pcm_pointer(struct snd_pcm_substream *substream)
838 {
839         struct via82xx *chip = snd_pcm_substream_chip(substream);
840         struct viadev *viadev = substream->runtime->private_data;
841         unsigned int idx, ptr, count, res;
842 
843         if (snd_BUG_ON(!viadev->tbl_entries))
844                 return 0;
845         if (!(inb(VIADEV_REG(viadev, OFFSET_STATUS)) & VIA_REG_STAT_ACTIVE))
846                 return 0;
847 
848         spin_lock(&chip->reg_lock);
849         count = inl(VIADEV_REG(viadev, OFFSET_CURR_COUNT)) & 0xffffff;
850         /* The via686a does not have the current index register,
851          * so we need to calculate the index from CURR_PTR.
852          */
853         ptr = inl(VIADEV_REG(viadev, OFFSET_CURR_PTR));
854         if (ptr <= (unsigned int)viadev->table.addr)
855                 idx = 0;
856         else /* CURR_PTR holds the address + 8 */
857                 idx = ((ptr - (unsigned int)viadev->table.addr) / 8 - 1) % viadev->tbl_entries;
858         res = calc_linear_pos(chip, viadev, idx, count);
859         viadev->lastpos = res; /* remember the last position */
860         spin_unlock(&chip->reg_lock);
861 
862         return bytes_to_frames(substream->runtime, res);
863 }
864 
865 /*
866  * get the current pointer on via823x
867  */
868 static snd_pcm_uframes_t snd_via8233_pcm_pointer(struct snd_pcm_substream *substream)
869 {
870         struct via82xx *chip = snd_pcm_substream_chip(substream);
871         struct viadev *viadev = substream->runtime->private_data;
872         unsigned int idx, count, res;
873         int status;
874         
875         if (snd_BUG_ON(!viadev->tbl_entries))
876                 return 0;
877 
878         spin_lock(&chip->reg_lock);
879         count = inl(VIADEV_REG(viadev, OFFSET_CURR_COUNT));
880         status = viadev->in_interrupt;
881         if (!status)
882                 status = inb(VIADEV_REG(viadev, OFFSET_STATUS));
883 
884         /* An apparent bug in the 8251 is worked around by sending a 
885          * REG_CTRL_START. */
886         if (chip->revision == VIA_REV_8251 && (status & VIA_REG_STAT_EOL))
887                 snd_via82xx_pcm_trigger(substream, SNDRV_PCM_TRIGGER_START);
888 
889         if (!(status & VIA_REG_STAT_ACTIVE)) {
890                 res = 0;
891                 goto unlock;
892         }
893         if (count & 0xffffff) {
894                 idx = count >> 24;
895                 if (idx >= viadev->tbl_entries) {
896 #ifdef POINTER_DEBUG
897                         dev_dbg(chip->card->dev,
898                                 "fail: invalid idx = %i/%i\n", idx,
899                                viadev->tbl_entries);
900 #endif
901                         res = viadev->lastpos;
902                 } else {
903                         count &= 0xffffff;
904                         res = calc_linear_pos(chip, viadev, idx, count);
905                 }
906         } else {
907                 res = viadev->hwptr_done;
908                 if (!viadev->in_interrupt) {
909                         if (status & VIA_REG_STAT_EOL) {
910                                 res = 0;
911                         } else
912                                 if (status & VIA_REG_STAT_FLAG) {
913                                         res += viadev->fragsize;
914                                 }
915                 }
916         }                           
917 unlock:
918         viadev->lastpos = res;
919         spin_unlock(&chip->reg_lock);
920 
921         return bytes_to_frames(substream->runtime, res);
922 }
923 
924 
925 /*
926  * hw_params callback:
927  * allocate the buffer and build up the buffer description table
928  */
929 static int snd_via82xx_hw_params(struct snd_pcm_substream *substream,
930                                  struct snd_pcm_hw_params *hw_params)
931 {
932         struct via82xx *chip = snd_pcm_substream_chip(substream);
933         struct viadev *viadev = substream->runtime->private_data;
934         int err;
935 
936         err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
937         if (err < 0)
938                 return err;
939         err = build_via_table(viadev, substream, chip->pci,
940                               params_periods(hw_params),
941                               params_period_bytes(hw_params));
942         if (err < 0)
943                 return err;
944 
945         return 0;
946 }
947 
948 /*
949  * hw_free callback:
950  * clean up the buffer description table and release the buffer
951  */
952 static int snd_via82xx_hw_free(struct snd_pcm_substream *substream)
953 {
954         struct via82xx *chip = snd_pcm_substream_chip(substream);
955         struct viadev *viadev = substream->runtime->private_data;
956 
957         clean_via_table(viadev, substream, chip->pci);
958         snd_pcm_lib_free_pages(substream);
959         return 0;
960 }
961 
962 
963 /*
964  * set up the table pointer
965  */
966 static void snd_via82xx_set_table_ptr(struct via82xx *chip, struct viadev *viadev)
967 {
968         snd_via82xx_codec_ready(chip, 0);
969         outl((u32)viadev->table.addr, VIADEV_REG(viadev, OFFSET_TABLE_PTR));
970         udelay(20);
971         snd_via82xx_codec_ready(chip, 0);
972 }
973 
974 /*
975  * prepare callback for playback and capture on via686
976  */
977 static void via686_setup_format(struct via82xx *chip, struct viadev *viadev,
978                                 struct snd_pcm_runtime *runtime)
979 {
980         snd_via82xx_channel_reset(chip, viadev);
981         /* this must be set after channel_reset */
982         snd_via82xx_set_table_ptr(chip, viadev);
983         outb(VIA_REG_TYPE_AUTOSTART |
984              (runtime->format == SNDRV_PCM_FORMAT_S16_LE ? VIA_REG_TYPE_16BIT : 0) |
985              (runtime->channels > 1 ? VIA_REG_TYPE_STEREO : 0) |
986              ((viadev->reg_offset & 0x10) == 0 ? VIA_REG_TYPE_INT_LSAMPLE : 0) |
987              VIA_REG_TYPE_INT_EOL |
988              VIA_REG_TYPE_INT_FLAG, VIADEV_REG(viadev, OFFSET_TYPE));
989 }
990 
991 static int snd_via686_playback_prepare(struct snd_pcm_substream *substream)
992 {
993         struct via82xx *chip = snd_pcm_substream_chip(substream);
994         struct viadev *viadev = substream->runtime->private_data;
995         struct snd_pcm_runtime *runtime = substream->runtime;
996 
997         snd_ac97_set_rate(chip->ac97, AC97_PCM_FRONT_DAC_RATE, runtime->rate);
998         snd_ac97_set_rate(chip->ac97, AC97_SPDIF, runtime->rate);
999         via686_setup_format(chip, viadev, runtime);
1000         return 0;
1001 }
1002 
1003 static int snd_via686_capture_prepare(struct snd_pcm_substream *substream)
1004 {
1005         struct via82xx *chip = snd_pcm_substream_chip(substream);
1006         struct viadev *viadev = substream->runtime->private_data;
1007         struct snd_pcm_runtime *runtime = substream->runtime;
1008 
1009         snd_ac97_set_rate(chip->ac97, AC97_PCM_LR_ADC_RATE, runtime->rate);
1010         via686_setup_format(chip, viadev, runtime);
1011         return 0;
1012 }
1013 
1014 /*
1015  * lock the current rate
1016  */
1017 static int via_lock_rate(struct via_rate_lock *rec, int rate)
1018 {
1019         int changed = 0;
1020 
1021         spin_lock_irq(&rec->lock);
1022         if (rec->rate != rate) {
1023                 if (rec->rate && rec->used > 1) /* already set */
1024                         changed = -EINVAL;
1025                 else {
1026                         rec->rate = rate;
1027                         changed = 1;
1028                 }
1029         }
1030         spin_unlock_irq(&rec->lock);
1031         return changed;
1032 }
1033 
1034 /*
1035  * prepare callback for DSX playback on via823x
1036  */
1037 static int snd_via8233_playback_prepare(struct snd_pcm_substream *substream)
1038 {
1039         struct via82xx *chip = snd_pcm_substream_chip(substream);
1040         struct viadev *viadev = substream->runtime->private_data;
1041         struct snd_pcm_runtime *runtime = substream->runtime;
1042         int ac97_rate = chip->dxs_src ? 48000 : runtime->rate;
1043         int rate_changed;
1044         u32 rbits;
1045 
1046         if ((rate_changed = via_lock_rate(&chip->rates[0], ac97_rate)) < 0)
1047                 return rate_changed;
1048         if (rate_changed)
1049                 snd_ac97_set_rate(chip->ac97, AC97_PCM_FRONT_DAC_RATE,
1050                                   chip->no_vra ? 48000 : runtime->rate);
1051         if (chip->spdif_on && viadev->reg_offset == 0x30)
1052                 snd_ac97_set_rate(chip->ac97, AC97_SPDIF, runtime->rate);
1053 
1054         if (runtime->rate == 48000)
1055                 rbits = 0xfffff;
1056         else
1057                 rbits = (0x100000 / 48000) * runtime->rate +
1058                         ((0x100000 % 48000) * runtime->rate) / 48000;
1059         snd_BUG_ON(rbits & ~0xfffff);
1060         snd_via82xx_channel_reset(chip, viadev);
1061         snd_via82xx_set_table_ptr(chip, viadev);
1062         outb(chip->playback_volume[viadev->reg_offset / 0x10][0],
1063              VIADEV_REG(viadev, OFS_PLAYBACK_VOLUME_L));
1064         outb(chip->playback_volume[viadev->reg_offset / 0x10][1],
1065              VIADEV_REG(viadev, OFS_PLAYBACK_VOLUME_R));
1066         outl((runtime->format == SNDRV_PCM_FORMAT_S16_LE ? VIA8233_REG_TYPE_16BIT : 0) | /* format */
1067              (runtime->channels > 1 ? VIA8233_REG_TYPE_STEREO : 0) | /* stereo */
1068              rbits | /* rate */
1069              0xff000000,    /* STOP index is never reached */
1070              VIADEV_REG(viadev, OFFSET_STOP_IDX));
1071         udelay(20);
1072         snd_via82xx_codec_ready(chip, 0);
1073         return 0;
1074 }
1075 
1076 /*
1077  * prepare callback for multi-channel playback on via823x
1078  */
1079 static int snd_via8233_multi_prepare(struct snd_pcm_substream *substream)
1080 {
1081         struct via82xx *chip = snd_pcm_substream_chip(substream);
1082         struct viadev *viadev = substream->runtime->private_data;
1083         struct snd_pcm_runtime *runtime = substream->runtime;
1084         unsigned int slots;
1085         int fmt;
1086 
1087         if (via_lock_rate(&chip->rates[0], runtime->rate) < 0)
1088                 return -EINVAL;
1089         snd_ac97_set_rate(chip->ac97, AC97_PCM_FRONT_DAC_RATE, runtime->rate);
1090         snd_ac97_set_rate(chip->ac97, AC97_PCM_SURR_DAC_RATE, runtime->rate);
1091         snd_ac97_set_rate(chip->ac97, AC97_PCM_LFE_DAC_RATE, runtime->rate);
1092         snd_ac97_set_rate(chip->ac97, AC97_SPDIF, runtime->rate);
1093         snd_via82xx_channel_reset(chip, viadev);
1094         snd_via82xx_set_table_ptr(chip, viadev);
1095 
1096         fmt = (runtime->format == SNDRV_PCM_FORMAT_S16_LE) ?
1097                 VIA_REG_MULTPLAY_FMT_16BIT : VIA_REG_MULTPLAY_FMT_8BIT;
1098         fmt |= runtime->channels << 4;
1099         outb(fmt, VIADEV_REG(viadev, OFS_MULTPLAY_FORMAT));
1100 #if 0
1101         if (chip->revision == VIA_REV_8233A)
1102                 slots = 0;
1103         else
1104 #endif
1105         {
1106                 /* set sample number to slot 3, 4, 7, 8, 6, 9 (for VIA8233/C,8235) */
1107                 /* corresponding to FL, FR, RL, RR, C, LFE ?? */
1108                 switch (runtime->channels) {
1109                 case 1: slots = (1<<0) | (1<<4); break;
1110                 case 2: slots = (1<<0) | (2<<4); break;
1111                 case 3: slots = (1<<0) | (2<<4) | (5<<8); break;
1112                 case 4: slots = (1<<0) | (2<<4) | (3<<8) | (4<<12); break;
1113                 case 5: slots = (1<<0) | (2<<4) | (3<<8) | (4<<12) | (5<<16); break;
1114                 case 6: slots = (1<<0) | (2<<4) | (3<<8) | (4<<12) | (5<<16) | (6<<20); break;
1115                 default: slots = 0; break;
1116                 }
1117         }
1118         /* STOP index is never reached */
1119         outl(0xff000000 | slots, VIADEV_REG(viadev, OFFSET_STOP_IDX));
1120         udelay(20);
1121         snd_via82xx_codec_ready(chip, 0);
1122         return 0;
1123 }
1124 
1125 /*
1126  * prepare callback for capture on via823x
1127  */
1128 static int snd_via8233_capture_prepare(struct snd_pcm_substream *substream)
1129 {
1130         struct via82xx *chip = snd_pcm_substream_chip(substream);
1131         struct viadev *viadev = substream->runtime->private_data;
1132         struct snd_pcm_runtime *runtime = substream->runtime;
1133 
1134         if (via_lock_rate(&chip->rates[1], runtime->rate) < 0)
1135                 return -EINVAL;
1136         snd_ac97_set_rate(chip->ac97, AC97_PCM_LR_ADC_RATE, runtime->rate);
1137         snd_via82xx_channel_reset(chip, viadev);
1138         snd_via82xx_set_table_ptr(chip, viadev);
1139         outb(VIA_REG_CAPTURE_FIFO_ENABLE, VIADEV_REG(viadev, OFS_CAPTURE_FIFO));
1140         outl((runtime->format == SNDRV_PCM_FORMAT_S16_LE ? VIA8233_REG_TYPE_16BIT : 0) |
1141              (runtime->channels > 1 ? VIA8233_REG_TYPE_STEREO : 0) |
1142              0xff000000,    /* STOP index is never reached */
1143              VIADEV_REG(viadev, OFFSET_STOP_IDX));
1144         udelay(20);
1145         snd_via82xx_codec_ready(chip, 0);
1146         return 0;
1147 }
1148 
1149 
1150 /*
1151  * pcm hardware definition, identical for both playback and capture
1152  */
1153 static struct snd_pcm_hardware snd_via82xx_hw =
1154 {
1155         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1156                                  SNDRV_PCM_INFO_BLOCK_TRANSFER |
1157                                  SNDRV_PCM_INFO_MMAP_VALID |
1158                                  /* SNDRV_PCM_INFO_RESUME | */
1159                                  SNDRV_PCM_INFO_PAUSE),
1160         .formats =              SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
1161         .rates =                SNDRV_PCM_RATE_48000,
1162         .rate_min =             48000,
1163         .rate_max =             48000,
1164         .channels_min =         1,
1165         .channels_max =         2,
1166         .buffer_bytes_max =     VIA_MAX_BUFSIZE,
1167         .period_bytes_min =     32,
1168         .period_bytes_max =     VIA_MAX_BUFSIZE / 2,
1169         .periods_min =          2,
1170         .periods_max =          VIA_TABLE_SIZE / 2,
1171         .fifo_size =            0,
1172 };
1173 
1174 
1175 /*
1176  * open callback skeleton
1177  */
1178 static int snd_via82xx_pcm_open(struct via82xx *chip, struct viadev *viadev,
1179                                 struct snd_pcm_substream *substream)
1180 {
1181         struct snd_pcm_runtime *runtime = substream->runtime;
1182         int err;
1183         struct via_rate_lock *ratep;
1184         bool use_src = false;
1185 
1186         runtime->hw = snd_via82xx_hw;
1187         
1188         /* set the hw rate condition */
1189         ratep = &chip->rates[viadev->direction];
1190         spin_lock_irq(&ratep->lock);
1191         ratep->used++;
1192         if (chip->spdif_on && viadev->reg_offset == 0x30) {
1193                 /* DXS#3 and spdif is on */
1194                 runtime->hw.rates = chip->ac97->rates[AC97_RATES_SPDIF];
1195                 snd_pcm_limit_hw_rates(runtime);
1196         } else if (chip->dxs_fixed && viadev->reg_offset < 0x40) {
1197                 /* fixed DXS playback rate */
1198                 runtime->hw.rates = SNDRV_PCM_RATE_48000;
1199                 runtime->hw.rate_min = runtime->hw.rate_max = 48000;
1200         } else if (chip->dxs_src && viadev->reg_offset < 0x40) {
1201                 /* use full SRC capabilities of DXS */
1202                 runtime->hw.rates = (SNDRV_PCM_RATE_CONTINUOUS |
1203                                      SNDRV_PCM_RATE_8000_48000);
1204                 runtime->hw.rate_min = 8000;
1205                 runtime->hw.rate_max = 48000;
1206                 use_src = true;
1207         } else if (! ratep->rate) {
1208                 int idx = viadev->direction ? AC97_RATES_ADC : AC97_RATES_FRONT_DAC;
1209                 runtime->hw.rates = chip->ac97->rates[idx];
1210                 snd_pcm_limit_hw_rates(runtime);
1211         } else {
1212                 /* a fixed rate */
1213                 runtime->hw.rates = SNDRV_PCM_RATE_KNOT;
1214                 runtime->hw.rate_max = runtime->hw.rate_min = ratep->rate;
1215         }
1216         spin_unlock_irq(&ratep->lock);
1217 
1218         /* we may remove following constaint when we modify table entries
1219            in interrupt */
1220         if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
1221                 return err;
1222 
1223         if (use_src) {
1224                 err = snd_pcm_hw_rule_noresample(runtime, 48000);
1225                 if (err < 0)
1226                         return err;
1227         }
1228 
1229         runtime->private_data = viadev;
1230         viadev->substream = substream;
1231 
1232         return 0;
1233 }
1234 
1235 
1236 /*
1237  * open callback for playback on via686
1238  */
1239 static int snd_via686_playback_open(struct snd_pcm_substream *substream)
1240 {
1241         struct via82xx *chip = snd_pcm_substream_chip(substream);
1242         struct viadev *viadev = &chip->devs[chip->playback_devno + substream->number];
1243         int err;
1244 
1245         if ((err = snd_via82xx_pcm_open(chip, viadev, substream)) < 0)
1246                 return err;
1247         return 0;
1248 }
1249 
1250 /*
1251  * open callback for playback on via823x DXS
1252  */
1253 static int snd_via8233_playback_open(struct snd_pcm_substream *substream)
1254 {
1255         struct via82xx *chip = snd_pcm_substream_chip(substream);
1256         struct viadev *viadev;
1257         unsigned int stream;
1258         int err;
1259 
1260         viadev = &chip->devs[chip->playback_devno + substream->number];
1261         if ((err = snd_via82xx_pcm_open(chip, viadev, substream)) < 0)
1262                 return err;
1263         stream = viadev->reg_offset / 0x10;
1264         if (chip->dxs_controls[stream]) {
1265                 chip->playback_volume[stream][0] =
1266                                 VIA_DXS_MAX_VOLUME - (dxs_init_volume & 31);
1267                 chip->playback_volume[stream][1] =
1268                                 VIA_DXS_MAX_VOLUME - (dxs_init_volume & 31);
1269                 chip->dxs_controls[stream]->vd[0].access &=
1270                         ~SNDRV_CTL_ELEM_ACCESS_INACTIVE;
1271                 snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE |
1272                                SNDRV_CTL_EVENT_MASK_INFO,
1273                                &chip->dxs_controls[stream]->id);
1274         }
1275         return 0;
1276 }
1277 
1278 /*
1279  * open callback for playback on via823x multi-channel
1280  */
1281 static int snd_via8233_multi_open(struct snd_pcm_substream *substream)
1282 {
1283         struct via82xx *chip = snd_pcm_substream_chip(substream);
1284         struct viadev *viadev = &chip->devs[chip->multi_devno];
1285         int err;
1286         /* channels constraint for VIA8233A
1287          * 3 and 5 channels are not supported
1288          */
1289         static unsigned int channels[] = {
1290                 1, 2, 4, 6
1291         };
1292         static struct snd_pcm_hw_constraint_list hw_constraints_channels = {
1293                 .count = ARRAY_SIZE(channels),
1294                 .list = channels,
1295                 .mask = 0,
1296         };
1297 
1298         if ((err = snd_via82xx_pcm_open(chip, viadev, substream)) < 0)
1299                 return err;
1300         substream->runtime->hw.channels_max = 6;
1301         if (chip->revision == VIA_REV_8233A)
1302                 snd_pcm_hw_constraint_list(substream->runtime, 0,
1303                                            SNDRV_PCM_HW_PARAM_CHANNELS,
1304                                            &hw_constraints_channels);
1305         return 0;
1306 }
1307 
1308 /*
1309  * open callback for capture on via686 and via823x
1310  */
1311 static int snd_via82xx_capture_open(struct snd_pcm_substream *substream)
1312 {
1313         struct via82xx *chip = snd_pcm_substream_chip(substream);
1314         struct viadev *viadev = &chip->devs[chip->capture_devno + substream->pcm->device];
1315 
1316         return snd_via82xx_pcm_open(chip, viadev, substream);
1317 }
1318 
1319 /*
1320  * close callback
1321  */
1322 static int snd_via82xx_pcm_close(struct snd_pcm_substream *substream)
1323 {
1324         struct via82xx *chip = snd_pcm_substream_chip(substream);
1325         struct viadev *viadev = substream->runtime->private_data;
1326         struct via_rate_lock *ratep;
1327 
1328         /* release the rate lock */
1329         ratep = &chip->rates[viadev->direction];
1330         spin_lock_irq(&ratep->lock);
1331         ratep->used--;
1332         if (! ratep->used)
1333                 ratep->rate = 0;
1334         spin_unlock_irq(&ratep->lock);
1335         if (! ratep->rate) {
1336                 if (! viadev->direction) {
1337                         snd_ac97_update_power(chip->ac97,
1338                                               AC97_PCM_FRONT_DAC_RATE, 0);
1339                         snd_ac97_update_power(chip->ac97,
1340                                               AC97_PCM_SURR_DAC_RATE, 0);
1341                         snd_ac97_update_power(chip->ac97,
1342                                               AC97_PCM_LFE_DAC_RATE, 0);
1343                 } else
1344                         snd_ac97_update_power(chip->ac97,
1345                                               AC97_PCM_LR_ADC_RATE, 0);
1346         }
1347         viadev->substream = NULL;
1348         return 0;
1349 }
1350 
1351 static int snd_via8233_playback_close(struct snd_pcm_substream *substream)
1352 {
1353         struct via82xx *chip = snd_pcm_substream_chip(substream);
1354         struct viadev *viadev = substream->runtime->private_data;
1355         unsigned int stream;
1356 
1357         stream = viadev->reg_offset / 0x10;
1358         if (chip->dxs_controls[stream]) {
1359                 chip->dxs_controls[stream]->vd[0].access |=
1360                         SNDRV_CTL_ELEM_ACCESS_INACTIVE;
1361                 snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_INFO,
1362                                &chip->dxs_controls[stream]->id);
1363         }
1364         return snd_via82xx_pcm_close(substream);
1365 }
1366 
1367 
1368 /* via686 playback callbacks */
1369 static struct snd_pcm_ops snd_via686_playback_ops = {
1370         .open =         snd_via686_playback_open,
1371         .close =        snd_via82xx_pcm_close,
1372         .ioctl =        snd_pcm_lib_ioctl,
1373         .hw_params =    snd_via82xx_hw_params,
1374         .hw_free =      snd_via82xx_hw_free,
1375         .prepare =      snd_via686_playback_prepare,
1376         .trigger =      snd_via82xx_pcm_trigger,
1377         .pointer =      snd_via686_pcm_pointer,
1378         .page =         snd_pcm_sgbuf_ops_page,
1379 };
1380 
1381 /* via686 capture callbacks */
1382 static struct snd_pcm_ops snd_via686_capture_ops = {
1383         .open =         snd_via82xx_capture_open,
1384         .close =        snd_via82xx_pcm_close,
1385         .ioctl =        snd_pcm_lib_ioctl,
1386         .hw_params =    snd_via82xx_hw_params,
1387         .hw_free =      snd_via82xx_hw_free,
1388         .prepare =      snd_via686_capture_prepare,
1389         .trigger =      snd_via82xx_pcm_trigger,
1390         .pointer =      snd_via686_pcm_pointer,
1391         .page =         snd_pcm_sgbuf_ops_page,
1392 };
1393 
1394 /* via823x DSX playback callbacks */
1395 static struct snd_pcm_ops snd_via8233_playback_ops = {
1396         .open =         snd_via8233_playback_open,
1397         .close =        snd_via8233_playback_close,
1398         .ioctl =        snd_pcm_lib_ioctl,
1399         .hw_params =    snd_via82xx_hw_params,
1400         .hw_free =      snd_via82xx_hw_free,
1401         .prepare =      snd_via8233_playback_prepare,
1402         .trigger =      snd_via82xx_pcm_trigger,
1403         .pointer =      snd_via8233_pcm_pointer,
1404         .page =         snd_pcm_sgbuf_ops_page,
1405 };
1406 
1407 /* via823x multi-channel playback callbacks */
1408 static struct snd_pcm_ops snd_via8233_multi_ops = {
1409         .open =         snd_via8233_multi_open,
1410         .close =        snd_via82xx_pcm_close,
1411         .ioctl =        snd_pcm_lib_ioctl,
1412         .hw_params =    snd_via82xx_hw_params,
1413         .hw_free =      snd_via82xx_hw_free,
1414         .prepare =      snd_via8233_multi_prepare,
1415         .trigger =      snd_via82xx_pcm_trigger,
1416         .pointer =      snd_via8233_pcm_pointer,
1417         .page =         snd_pcm_sgbuf_ops_page,
1418 };
1419 
1420 /* via823x capture callbacks */
1421 static struct snd_pcm_ops snd_via8233_capture_ops = {
1422         .open =         snd_via82xx_capture_open,
1423         .close =        snd_via82xx_pcm_close,
1424         .ioctl =        snd_pcm_lib_ioctl,
1425         .hw_params =    snd_via82xx_hw_params,
1426         .hw_free =      snd_via82xx_hw_free,
1427         .prepare =      snd_via8233_capture_prepare,
1428         .trigger =      snd_via82xx_pcm_trigger,
1429         .pointer =      snd_via8233_pcm_pointer,
1430         .page =         snd_pcm_sgbuf_ops_page,
1431 };
1432 
1433 
1434 static void init_viadev(struct via82xx *chip, int idx, unsigned int reg_offset,
1435                         int shadow_pos, int direction)
1436 {
1437         chip->devs[idx].reg_offset = reg_offset;
1438         chip->devs[idx].shadow_shift = shadow_pos * 4;
1439         chip->devs[idx].direction = direction;
1440         chip->devs[idx].port = chip->port + reg_offset;
1441 }
1442 
1443 /*
1444  * create pcm instances for VIA8233, 8233C and 8235 (not 8233A)
1445  */
1446 static int snd_via8233_pcm_new(struct via82xx *chip)
1447 {
1448         struct snd_pcm *pcm;
1449         struct snd_pcm_chmap *chmap;
1450         int i, err;
1451 
1452         chip->playback_devno = 0;       /* x 4 */
1453         chip->multi_devno = 4;          /* x 1 */
1454         chip->capture_devno = 5;        /* x 2 */
1455         chip->num_devs = 7;
1456         chip->intr_mask = 0x33033333; /* FLAG|EOL for rec0-1, mc, sdx0-3 */
1457 
1458         /* PCM #0:  4 DSX playbacks and 1 capture */
1459         err = snd_pcm_new(chip->card, chip->card->shortname, 0, 4, 1, &pcm);
1460         if (err < 0)
1461                 return err;
1462         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_via8233_playback_ops);
1463         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_via8233_capture_ops);
1464         pcm->private_data = chip;
1465         strcpy(pcm->name, chip->card->shortname);
1466         chip->pcms[0] = pcm;
1467         /* set up playbacks */
1468         for (i = 0; i < 4; i++)
1469                 init_viadev(chip, i, 0x10 * i, i, 0);
1470         /* capture */
1471         init_viadev(chip, chip->capture_devno, VIA_REG_CAPTURE_8233_STATUS, 6, 1);
1472 
1473         snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
1474                                               snd_dma_pci_data(chip->pci),
1475                                               64*1024, VIA_MAX_BUFSIZE);
1476 
1477         err = snd_pcm_add_chmap_ctls(pcm, SNDRV_PCM_STREAM_PLAYBACK,
1478                                      snd_pcm_std_chmaps, 2, 0,
1479                                      &chmap);
1480         if (err < 0)
1481                 return err;
1482 
1483         /* PCM #1:  multi-channel playback and 2nd capture */
1484         err = snd_pcm_new(chip->card, chip->card->shortname, 1, 1, 1, &pcm);
1485         if (err < 0)
1486                 return err;
1487         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_via8233_multi_ops);
1488         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_via8233_capture_ops);
1489         pcm->private_data = chip;
1490         strcpy(pcm->name, chip->card->shortname);
1491         chip->pcms[1] = pcm;
1492         /* set up playback */
1493         init_viadev(chip, chip->multi_devno, VIA_REG_MULTPLAY_STATUS, 4, 0);
1494         /* set up capture */
1495         init_viadev(chip, chip->capture_devno + 1, VIA_REG_CAPTURE_8233_STATUS + 0x10, 7, 1);
1496 
1497         snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
1498                                               snd_dma_pci_data(chip->pci),
1499                                               64*1024, VIA_MAX_BUFSIZE);
1500 
1501         err = snd_pcm_add_chmap_ctls(pcm, SNDRV_PCM_STREAM_PLAYBACK,
1502                                      snd_pcm_alt_chmaps, 6, 0,
1503                                      &chmap);
1504         if (err < 0)
1505                 return err;
1506         chip->ac97->chmaps[SNDRV_PCM_STREAM_PLAYBACK] = chmap;
1507 
1508         return 0;
1509 }
1510 
1511 /*
1512  * create pcm instances for VIA8233A
1513  */
1514 static int snd_via8233a_pcm_new(struct via82xx *chip)
1515 {
1516         struct snd_pcm *pcm;
1517         struct snd_pcm_chmap *chmap;
1518         int err;
1519 
1520         chip->multi_devno = 0;
1521         chip->playback_devno = 1;
1522         chip->capture_devno = 2;
1523         chip->num_devs = 3;
1524         chip->intr_mask = 0x03033000; /* FLAG|EOL for rec0, mc, sdx3 */
1525 
1526         /* PCM #0:  multi-channel playback and capture */
1527         err = snd_pcm_new(chip->card, chip->card->shortname, 0, 1, 1, &pcm);
1528         if (err < 0)
1529                 return err;
1530         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_via8233_multi_ops);
1531         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_via8233_capture_ops);
1532         pcm->private_data = chip;
1533         strcpy(pcm->name, chip->card->shortname);
1534         chip->pcms[0] = pcm;
1535         /* set up playback */
1536         init_viadev(chip, chip->multi_devno, VIA_REG_MULTPLAY_STATUS, 4, 0);
1537         /* capture */
1538         init_viadev(chip, chip->capture_devno, VIA_REG_CAPTURE_8233_STATUS, 6, 1);
1539 
1540         snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
1541                                               snd_dma_pci_data(chip->pci),
1542                                               64*1024, VIA_MAX_BUFSIZE);
1543 
1544         err = snd_pcm_add_chmap_ctls(pcm, SNDRV_PCM_STREAM_PLAYBACK,
1545                                      snd_pcm_alt_chmaps, 6, 0,
1546                                      &chmap);
1547         if (err < 0)
1548                 return err;
1549         chip->ac97->chmaps[SNDRV_PCM_STREAM_PLAYBACK] = chmap;
1550 
1551         /* SPDIF supported? */
1552         if (! ac97_can_spdif(chip->ac97))
1553                 return 0;
1554 
1555         /* PCM #1:  DXS3 playback (for spdif) */
1556         err = snd_pcm_new(chip->card, chip->card->shortname, 1, 1, 0, &pcm);
1557         if (err < 0)
1558                 return err;
1559         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_via8233_playback_ops);
1560         pcm->private_data = chip;
1561         strcpy(pcm->name, chip->card->shortname);
1562         chip->pcms[1] = pcm;
1563         /* set up playback */
1564         init_viadev(chip, chip->playback_devno, 0x30, 3, 0);
1565 
1566         snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
1567                                               snd_dma_pci_data(chip->pci),
1568                                               64*1024, VIA_MAX_BUFSIZE);
1569         return 0;
1570 }
1571 
1572 /*
1573  * create a pcm instance for via686a/b
1574  */
1575 static int snd_via686_pcm_new(struct via82xx *chip)
1576 {
1577         struct snd_pcm *pcm;
1578         int err;
1579 
1580         chip->playback_devno = 0;
1581         chip->capture_devno = 1;
1582         chip->num_devs = 2;
1583         chip->intr_mask = 0x77; /* FLAG | EOL for PB, CP, FM */
1584 
1585         err = snd_pcm_new(chip->card, chip->card->shortname, 0, 1, 1, &pcm);
1586         if (err < 0)
1587                 return err;
1588         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_via686_playback_ops);
1589         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_via686_capture_ops);
1590         pcm->private_data = chip;
1591         strcpy(pcm->name, chip->card->shortname);
1592         chip->pcms[0] = pcm;
1593         init_viadev(chip, 0, VIA_REG_PLAYBACK_STATUS, 0, 0);
1594         init_viadev(chip, 1, VIA_REG_CAPTURE_STATUS, 0, 1);
1595 
1596         snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
1597                                               snd_dma_pci_data(chip->pci),
1598                                               64*1024, VIA_MAX_BUFSIZE);
1599         return 0;
1600 }
1601 
1602 
1603 /*
1604  *  Mixer part
1605  */
1606 
1607 static int snd_via8233_capture_source_info(struct snd_kcontrol *kcontrol,
1608                                            struct snd_ctl_elem_info *uinfo)
1609 {
1610         /* formerly they were "Line" and "Mic", but it looks like that they
1611          * have nothing to do with the actual physical connections...
1612          */
1613         static char *texts[2] = {
1614                 "Input1", "Input2"
1615         };
1616         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
1617         uinfo->count = 1;
1618         uinfo->value.enumerated.items = 2;
1619         if (uinfo->value.enumerated.item >= 2)
1620                 uinfo->value.enumerated.item = 1;
1621         strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
1622         return 0;
1623 }
1624 
1625 static int snd_via8233_capture_source_get(struct snd_kcontrol *kcontrol,
1626                                           struct snd_ctl_elem_value *ucontrol)
1627 {
1628         struct via82xx *chip = snd_kcontrol_chip(kcontrol);
1629         unsigned long port = chip->port + (kcontrol->id.index ? (VIA_REG_CAPTURE_CHANNEL + 0x10) : VIA_REG_CAPTURE_CHANNEL);
1630         ucontrol->value.enumerated.item[0] = inb(port) & VIA_REG_CAPTURE_CHANNEL_MIC ? 1 : 0;
1631         return 0;
1632 }
1633 
1634 static int snd_via8233_capture_source_put(struct snd_kcontrol *kcontrol,
1635                                           struct snd_ctl_elem_value *ucontrol)
1636 {
1637         struct via82xx *chip = snd_kcontrol_chip(kcontrol);
1638         unsigned long port = chip->port + (kcontrol->id.index ? (VIA_REG_CAPTURE_CHANNEL + 0x10) : VIA_REG_CAPTURE_CHANNEL);
1639         u8 val, oval;
1640 
1641         spin_lock_irq(&chip->reg_lock);
1642         oval = inb(port);
1643         val = oval & ~VIA_REG_CAPTURE_CHANNEL_MIC;
1644         if (ucontrol->value.enumerated.item[0])
1645                 val |= VIA_REG_CAPTURE_CHANNEL_MIC;
1646         if (val != oval)
1647                 outb(val, port);
1648         spin_unlock_irq(&chip->reg_lock);
1649         return val != oval;
1650 }
1651 
1652 static struct snd_kcontrol_new snd_via8233_capture_source = {
1653         .name = "Input Source Select",
1654         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1655         .info = snd_via8233_capture_source_info,
1656         .get = snd_via8233_capture_source_get,
1657         .put = snd_via8233_capture_source_put,
1658 };
1659 
1660 #define snd_via8233_dxs3_spdif_info     snd_ctl_boolean_mono_info
1661 
1662 static int snd_via8233_dxs3_spdif_get(struct snd_kcontrol *kcontrol,
1663                                       struct snd_ctl_elem_value *ucontrol)
1664 {
1665         struct via82xx *chip = snd_kcontrol_chip(kcontrol);
1666         u8 val;
1667 
1668         pci_read_config_byte(chip->pci, VIA8233_SPDIF_CTRL, &val);
1669         ucontrol->value.integer.value[0] = (val & VIA8233_SPDIF_DX3) ? 1 : 0;
1670         return 0;
1671 }
1672 
1673 static int snd_via8233_dxs3_spdif_put(struct snd_kcontrol *kcontrol,
1674                                       struct snd_ctl_elem_value *ucontrol)
1675 {
1676         struct via82xx *chip = snd_kcontrol_chip(kcontrol);
1677         u8 val, oval;
1678 
1679         pci_read_config_byte(chip->pci, VIA8233_SPDIF_CTRL, &oval);
1680         val = oval & ~VIA8233_SPDIF_DX3;
1681         if (ucontrol->value.integer.value[0])
1682                 val |= VIA8233_SPDIF_DX3;
1683         /* save the spdif flag for rate filtering */
1684         chip->spdif_on = ucontrol->value.integer.value[0] ? 1 : 0;
1685         if (val != oval) {
1686                 pci_write_config_byte(chip->pci, VIA8233_SPDIF_CTRL, val);
1687                 return 1;
1688         }
1689         return 0;
1690 }
1691 
1692 static struct snd_kcontrol_new snd_via8233_dxs3_spdif_control = {
1693         .name = SNDRV_CTL_NAME_IEC958("Output ",NONE,SWITCH),
1694         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1695         .info = snd_via8233_dxs3_spdif_info,
1696         .get = snd_via8233_dxs3_spdif_get,
1697         .put = snd_via8233_dxs3_spdif_put,
1698 };
1699 
1700 static int snd_via8233_dxs_volume_info(struct snd_kcontrol *kcontrol,
1701                                        struct snd_ctl_elem_info *uinfo)
1702 {
1703         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
1704         uinfo->count = 2;
1705         uinfo->value.integer.min = 0;
1706         uinfo->value.integer.max = VIA_DXS_MAX_VOLUME;
1707         return 0;
1708 }
1709 
1710 static int snd_via8233_dxs_volume_get(struct snd_kcontrol *kcontrol,
1711                                       struct snd_ctl_elem_value *ucontrol)
1712 {
1713         struct via82xx *chip = snd_kcontrol_chip(kcontrol);
1714         unsigned int idx = kcontrol->id.subdevice;
1715 
1716         ucontrol->value.integer.value[0] = VIA_DXS_MAX_VOLUME - chip->playback_volume[idx][0];
1717         ucontrol->value.integer.value[1] = VIA_DXS_MAX_VOLUME - chip->playback_volume[idx][1];
1718         return 0;
1719 }
1720 
1721 static int snd_via8233_pcmdxs_volume_get(struct snd_kcontrol *kcontrol,
1722                                          struct snd_ctl_elem_value *ucontrol)
1723 {
1724         struct via82xx *chip = snd_kcontrol_chip(kcontrol);
1725         ucontrol->value.integer.value[0] = VIA_DXS_MAX_VOLUME - chip->playback_volume_c[0];
1726         ucontrol->value.integer.value[1] = VIA_DXS_MAX_VOLUME - chip->playback_volume_c[1];
1727         return 0;
1728 }
1729 
1730 static int snd_via8233_dxs_volume_put(struct snd_kcontrol *kcontrol,
1731                                       struct snd_ctl_elem_value *ucontrol)
1732 {
1733         struct via82xx *chip = snd_kcontrol_chip(kcontrol);
1734         unsigned int idx = kcontrol->id.subdevice;
1735         unsigned long port = chip->port + 0x10 * idx;
1736         unsigned char val;
1737         int i, change = 0;
1738 
1739         for (i = 0; i < 2; i++) {
1740                 val = ucontrol->value.integer.value[i];
1741                 if (val > VIA_DXS_MAX_VOLUME)
1742                         val = VIA_DXS_MAX_VOLUME;
1743                 val = VIA_DXS_MAX_VOLUME - val;
1744                 change |= val != chip->playback_volume[idx][i];
1745                 if (change) {
1746                         chip->playback_volume[idx][i] = val;
1747                         outb(val, port + VIA_REG_OFS_PLAYBACK_VOLUME_L + i);
1748                 }
1749         }
1750         return change;
1751 }
1752 
1753 static int snd_via8233_pcmdxs_volume_put(struct snd_kcontrol *kcontrol,
1754                                          struct snd_ctl_elem_value *ucontrol)
1755 {
1756         struct via82xx *chip = snd_kcontrol_chip(kcontrol);
1757         unsigned int idx;
1758         unsigned char val;
1759         int i, change = 0;
1760 
1761         for (i = 0; i < 2; i++) {
1762                 val = ucontrol->value.integer.value[i];
1763                 if (val > VIA_DXS_MAX_VOLUME)
1764                         val = VIA_DXS_MAX_VOLUME;
1765                 val = VIA_DXS_MAX_VOLUME - val;
1766                 if (val != chip->playback_volume_c[i]) {
1767                         change = 1;
1768                         chip->playback_volume_c[i] = val;
1769                         for (idx = 0; idx < 4; idx++) {
1770                                 unsigned long port = chip->port + 0x10 * idx;
1771                                 chip->playback_volume[idx][i] = val;
1772                                 outb(val, port + VIA_REG_OFS_PLAYBACK_VOLUME_L + i);
1773                         }
1774                 }
1775         }
1776         return change;
1777 }
1778 
1779 static const DECLARE_TLV_DB_SCALE(db_scale_dxs, -4650, 150, 1);
1780 
1781 static struct snd_kcontrol_new snd_via8233_pcmdxs_volume_control = {
1782         .name = "PCM Playback Volume",
1783         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1784         .access = (SNDRV_CTL_ELEM_ACCESS_READWRITE |
1785                    SNDRV_CTL_ELEM_ACCESS_TLV_READ),
1786         .info = snd_via8233_dxs_volume_info,
1787         .get = snd_via8233_pcmdxs_volume_get,
1788         .put = snd_via8233_pcmdxs_volume_put,
1789         .tlv = { .p = db_scale_dxs }
1790 };
1791 
1792 static struct snd_kcontrol_new snd_via8233_dxs_volume_control = {
1793         .iface = SNDRV_CTL_ELEM_IFACE_PCM,
1794         .device = 0,
1795         /* .subdevice set later */
1796         .name = "PCM Playback Volume",
1797         .access = SNDRV_CTL_ELEM_ACCESS_READWRITE |
1798                   SNDRV_CTL_ELEM_ACCESS_TLV_READ |
1799                   SNDRV_CTL_ELEM_ACCESS_INACTIVE,
1800         .info = snd_via8233_dxs_volume_info,
1801         .get = snd_via8233_dxs_volume_get,
1802         .put = snd_via8233_dxs_volume_put,
1803         .tlv = { .p = db_scale_dxs }
1804 };
1805 
1806 /*
1807  */
1808 
1809 static void snd_via82xx_mixer_free_ac97_bus(struct snd_ac97_bus *bus)
1810 {
1811         struct via82xx *chip = bus->private_data;
1812         chip->ac97_bus = NULL;
1813 }
1814 
1815 static void snd_via82xx_mixer_free_ac97(struct snd_ac97 *ac97)
1816 {
1817         struct via82xx *chip = ac97->private_data;
1818         chip->ac97 = NULL;
1819 }
1820 
1821 static struct ac97_quirk ac97_quirks[] = {
1822         {
1823                 .subvendor = 0x1106,
1824                 .subdevice = 0x4161,
1825                 .codec_id = 0x56494161, /* VT1612A */
1826                 .name = "Soltek SL-75DRV5",
1827                 .type = AC97_TUNE_NONE
1828         },
1829         {       /* FIXME: which codec? */
1830                 .subvendor = 0x1106,
1831                 .subdevice = 0x4161,
1832                 .name = "ASRock K7VT2",
1833                 .type = AC97_TUNE_HP_ONLY
1834         },
1835         {
1836                 .subvendor = 0x110a,
1837                 .subdevice = 0x0079,
1838                 .name = "Fujitsu Siemens D1289",
1839                 .type = AC97_TUNE_HP_ONLY
1840         },
1841         {
1842                 .subvendor = 0x1019,
1843                 .subdevice = 0x0a81,
1844                 .name = "ECS K7VTA3",
1845                 .type = AC97_TUNE_HP_ONLY
1846         },
1847         {
1848                 .subvendor = 0x1019,
1849                 .subdevice = 0x0a85,
1850                 .name = "ECS L7VMM2",
1851                 .type = AC97_TUNE_HP_ONLY
1852         },
1853         {
1854                 .subvendor = 0x1019,
1855                 .subdevice = 0x1841,
1856                 .name = "ECS K7VTA3",
1857                 .type = AC97_TUNE_HP_ONLY
1858         },
1859         {
1860                 .subvendor = 0x1849,
1861                 .subdevice = 0x3059,
1862                 .name = "ASRock K7VM2",
1863                 .type = AC97_TUNE_HP_ONLY       /* VT1616 */
1864         },
1865         {
1866                 .subvendor = 0x14cd,
1867                 .subdevice = 0x7002,
1868                 .name = "Unknown",
1869                 .type = AC97_TUNE_ALC_JACK
1870         },
1871         {
1872                 .subvendor = 0x1071,
1873                 .subdevice = 0x8590,
1874                 .name = "Mitac Mobo",
1875                 .type = AC97_TUNE_ALC_JACK
1876         },
1877         {
1878                 .subvendor = 0x161f,
1879                 .subdevice = 0x202b,
1880                 .name = "Arima Notebook",
1881                 .type = AC97_TUNE_HP_ONLY,
1882         },
1883         {
1884                 .subvendor = 0x161f,
1885                 .subdevice = 0x2032,
1886                 .name = "Targa Traveller 811",
1887                 .type = AC97_TUNE_HP_ONLY,
1888         },
1889         {
1890                 .subvendor = 0x161f,
1891                 .subdevice = 0x2032,
1892                 .name = "m680x",
1893                 .type = AC97_TUNE_HP_ONLY, /* http://launchpad.net/bugs/38546 */
1894         },
1895         {
1896                 .subvendor = 0x1297,
1897                 .subdevice = 0xa232,
1898                 .name = "Shuttle AK32VN",
1899                 .type = AC97_TUNE_HP_ONLY
1900         },
1901         { } /* terminator */
1902 };
1903 
1904 static int snd_via82xx_mixer_new(struct via82xx *chip, const char *quirk_override)
1905 {
1906         struct snd_ac97_template ac97;
1907         int err;
1908         static struct snd_ac97_bus_ops ops = {
1909                 .write = snd_via82xx_codec_write,
1910                 .read = snd_via82xx_codec_read,
1911                 .wait = snd_via82xx_codec_wait,
1912         };
1913 
1914         if ((err = snd_ac97_bus(chip->card, 0, &ops, chip, &chip->ac97_bus)) < 0)
1915                 return err;
1916         chip->ac97_bus->private_free = snd_via82xx_mixer_free_ac97_bus;
1917         chip->ac97_bus->clock = chip->ac97_clock;
1918 
1919         memset(&ac97, 0, sizeof(ac97));
1920         ac97.private_data = chip;
1921         ac97.private_free = snd_via82xx_mixer_free_ac97;
1922         ac97.pci = chip->pci;
1923         ac97.scaps = AC97_SCAP_SKIP_MODEM | AC97_SCAP_POWER_SAVE;
1924         if ((err = snd_ac97_mixer(chip->ac97_bus, &ac97, &chip->ac97)) < 0)
1925                 return err;
1926 
1927         snd_ac97_tune_hardware(chip->ac97, ac97_quirks, quirk_override);
1928 
1929         if (chip->chip_type != TYPE_VIA686) {
1930                 /* use slot 10/11 */
1931                 snd_ac97_update_bits(chip->ac97, AC97_EXTENDED_STATUS, 0x03 << 4, 0x03 << 4);
1932         }
1933 
1934         return 0;
1935 }
1936 
1937 #ifdef SUPPORT_JOYSTICK
1938 #define JOYSTICK_ADDR   0x200
1939 static int snd_via686_create_gameport(struct via82xx *chip, unsigned char *legacy)
1940 {
1941         struct gameport *gp;
1942         struct resource *r;
1943 
1944         if (!joystick)
1945                 return -ENODEV;
1946 
1947         r = request_region(JOYSTICK_ADDR, 8, "VIA686 gameport");
1948         if (!r) {
1949                 dev_warn(chip->card->dev, "cannot reserve joystick port %#x\n",
1950                        JOYSTICK_ADDR);
1951                 return -EBUSY;
1952         }
1953 
1954         chip->gameport = gp = gameport_allocate_port();
1955         if (!gp) {
1956                 dev_err(chip->card->dev,
1957                         "cannot allocate memory for gameport\n");
1958                 release_and_free_resource(r);
1959                 return -ENOMEM;
1960         }
1961 
1962         gameport_set_name(gp, "VIA686 Gameport");
1963         gameport_set_phys(gp, "pci%s/gameport0", pci_name(chip->pci));
1964         gameport_set_dev_parent(gp, &chip->pci->dev);
1965         gp->io = JOYSTICK_ADDR;
1966         gameport_set_port_data(gp, r);
1967 
1968         /* Enable legacy joystick port */
1969         *legacy |= VIA_FUNC_ENABLE_GAME;
1970         pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE, *legacy);
1971 
1972         gameport_register_port(chip->gameport);
1973 
1974         return 0;
1975 }
1976 
1977 static void snd_via686_free_gameport(struct via82xx *chip)
1978 {
1979         if (chip->gameport) {
1980                 struct resource *r = gameport_get_port_data(chip->gameport);
1981 
1982                 gameport_unregister_port(chip->gameport);
1983                 chip->gameport = NULL;
1984                 release_and_free_resource(r);
1985         }
1986 }
1987 #else
1988 static inline int snd_via686_create_gameport(struct via82xx *chip, unsigned char *legacy)
1989 {
1990         return -ENOSYS;
1991 }
1992 static inline void snd_via686_free_gameport(struct via82xx *chip) { }
1993 #endif
1994 
1995 
1996 /*
1997  *
1998  */
1999 
2000 static int snd_via8233_init_misc(struct via82xx *chip)
2001 {
2002         int i, err, caps;
2003         unsigned char val;
2004 
2005         caps = chip->chip_type == TYPE_VIA8233A ? 1 : 2;
2006         for (i = 0; i < caps; i++) {
2007                 snd_via8233_capture_source.index = i;
2008                 err = snd_ctl_add(chip->card, snd_ctl_new1(&snd_via8233_capture_source, chip));
2009                 if (err < 0)
2010                         return err;
2011         }
2012         if (ac97_can_spdif(chip->ac97)) {
2013                 err = snd_ctl_add(chip->card, snd_ctl_new1(&snd_via8233_dxs3_spdif_control, chip));
2014                 if (err < 0)
2015                         return err;
2016         }
2017         if (chip->chip_type != TYPE_VIA8233A) {
2018                 /* when no h/w PCM volume control is found, use DXS volume control
2019                  * as the PCM vol control
2020                  */
2021                 struct snd_ctl_elem_id sid;
2022                 memset(&sid, 0, sizeof(sid));
2023                 strcpy(sid.name, "PCM Playback Volume");
2024                 sid.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
2025                 if (! snd_ctl_find_id(chip->card, &sid)) {
2026                         dev_info(chip->card->dev,
2027                                  "Using DXS as PCM Playback\n");
2028                         err = snd_ctl_add(chip->card, snd_ctl_new1(&snd_via8233_pcmdxs_volume_control, chip));
2029                         if (err < 0)
2030                                 return err;
2031                 }
2032                 else /* Using DXS when PCM emulation is enabled is really weird */
2033                 {
2034                         for (i = 0; i < 4; ++i) {
2035                                 struct snd_kcontrol *kctl;
2036 
2037                                 kctl = snd_ctl_new1(
2038                                         &snd_via8233_dxs_volume_control, chip);
2039                                 if (!kctl)
2040                                         return -ENOMEM;
2041                                 kctl->id.subdevice = i;
2042                                 err = snd_ctl_add(chip->card, kctl);
2043                                 if (err < 0)
2044                                         return err;
2045                                 chip->dxs_controls[i] = kctl;
2046                         }
2047                 }
2048         }
2049         /* select spdif data slot 10/11 */
2050         pci_read_config_byte(chip->pci, VIA8233_SPDIF_CTRL, &val);
2051         val = (val & ~VIA8233_SPDIF_SLOT_MASK) | VIA8233_SPDIF_SLOT_1011;
2052         val &= ~VIA8233_SPDIF_DX3; /* SPDIF off as default */
2053         pci_write_config_byte(chip->pci, VIA8233_SPDIF_CTRL, val);
2054 
2055         return 0;
2056 }
2057 
2058 static int snd_via686_init_misc(struct via82xx *chip)
2059 {
2060         unsigned char legacy, legacy_cfg;
2061         int rev_h = 0;
2062 
2063         legacy = chip->old_legacy;
2064         legacy_cfg = chip->old_legacy_cfg;
2065         legacy |= VIA_FUNC_MIDI_IRQMASK;        /* FIXME: correct? (disable MIDI) */
2066         legacy &= ~VIA_FUNC_ENABLE_GAME;        /* disable joystick */
2067         if (chip->revision >= VIA_REV_686_H) {
2068                 rev_h = 1;
2069                 if (mpu_port >= 0x200) {        /* force MIDI */
2070                         mpu_port &= 0xfffc;
2071                         pci_write_config_dword(chip->pci, 0x18, mpu_port | 0x01);
2072 #ifdef CONFIG_PM_SLEEP
2073                         chip->mpu_port_saved = mpu_port;
2074 #endif
2075                 } else {
2076                         mpu_port = pci_resource_start(chip->pci, 2);
2077                 }
2078         } else {
2079                 switch (mpu_port) {     /* force MIDI */
2080                 case 0x300:
2081                 case 0x310:
2082                 case 0x320:
2083                 case 0x330:
2084                         legacy_cfg &= ~(3 << 2);
2085                         legacy_cfg |= (mpu_port & 0x0030) >> 2;
2086                         break;
2087                 default:                        /* no, use BIOS settings */
2088                         if (legacy & VIA_FUNC_ENABLE_MIDI)
2089                                 mpu_port = 0x300 + ((legacy_cfg & 0x000c) << 2);
2090                         break;
2091                 }
2092         }
2093         if (mpu_port >= 0x200 &&
2094             (chip->mpu_res = request_region(mpu_port, 2, "VIA82xx MPU401"))
2095             != NULL) {
2096                 if (rev_h)
2097                         legacy |= VIA_FUNC_MIDI_PNP;    /* enable PCI I/O 2 */
2098                 legacy |= VIA_FUNC_ENABLE_MIDI;
2099         } else {
2100                 if (rev_h)
2101                         legacy &= ~VIA_FUNC_MIDI_PNP;   /* disable PCI I/O 2 */
2102                 legacy &= ~VIA_FUNC_ENABLE_MIDI;
2103                 mpu_port = 0;
2104         }
2105 
2106         pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE, legacy);
2107         pci_write_config_byte(chip->pci, VIA_PNP_CONTROL, legacy_cfg);
2108         if (chip->mpu_res) {
2109                 if (snd_mpu401_uart_new(chip->card, 0, MPU401_HW_VIA686A,
2110                                         mpu_port, MPU401_INFO_INTEGRATED |
2111                                         MPU401_INFO_IRQ_HOOK, -1,
2112                                         &chip->rmidi) < 0) {
2113                         dev_warn(chip->card->dev,
2114                                  "unable to initialize MPU-401 at 0x%lx, skipping\n",
2115                                  mpu_port);
2116                         legacy &= ~VIA_FUNC_ENABLE_MIDI;
2117                 } else {
2118                         legacy &= ~VIA_FUNC_MIDI_IRQMASK;       /* enable MIDI interrupt */
2119                 }
2120                 pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE, legacy);
2121         }
2122 
2123         snd_via686_create_gameport(chip, &legacy);
2124 
2125 #ifdef CONFIG_PM_SLEEP
2126         chip->legacy_saved = legacy;
2127         chip->legacy_cfg_saved = legacy_cfg;
2128 #endif
2129 
2130         return 0;
2131 }
2132 
2133 
2134 /*
2135  * proc interface
2136  */
2137 static void snd_via82xx_proc_read(struct snd_info_entry *entry,
2138                                   struct snd_info_buffer *buffer)
2139 {
2140         struct via82xx *chip = entry->private_data;
2141         int i;
2142         
2143         snd_iprintf(buffer, "%s\n\n", chip->card->longname);
2144         for (i = 0; i < 0xa0; i += 4) {
2145                 snd_iprintf(buffer, "%02x: %08x\n", i, inl(chip->port + i));
2146         }
2147 }
2148 
2149 static void snd_via82xx_proc_init(struct via82xx *chip)
2150 {
2151         struct snd_info_entry *entry;
2152 
2153         if (! snd_card_proc_new(chip->card, "via82xx", &entry))
2154                 snd_info_set_text_ops(entry, chip, snd_via82xx_proc_read);
2155 }
2156 
2157 /*
2158  *
2159  */
2160 
2161 static int snd_via82xx_chip_init(struct via82xx *chip)
2162 {
2163         unsigned int val;
2164         unsigned long end_time;
2165         unsigned char pval;
2166 
2167 #if 0 /* broken on K7M? */
2168         if (chip->chip_type == TYPE_VIA686)
2169                 /* disable all legacy ports */
2170                 pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE, 0);
2171 #endif
2172         pci_read_config_byte(chip->pci, VIA_ACLINK_STAT, &pval);
2173         if (! (pval & VIA_ACLINK_C00_READY)) { /* codec not ready? */
2174                 /* deassert ACLink reset, force SYNC */
2175                 pci_write_config_byte(chip->pci, VIA_ACLINK_CTRL,
2176                                       VIA_ACLINK_CTRL_ENABLE |
2177                                       VIA_ACLINK_CTRL_RESET |
2178                                       VIA_ACLINK_CTRL_SYNC);
2179                 udelay(100);
2180 #if 1 /* FIXME: should we do full reset here for all chip models? */
2181                 pci_write_config_byte(chip->pci, VIA_ACLINK_CTRL, 0x00);
2182                 udelay(100);
2183 #else
2184                 /* deassert ACLink reset, force SYNC (warm AC'97 reset) */
2185                 pci_write_config_byte(chip->pci, VIA_ACLINK_CTRL,
2186                                       VIA_ACLINK_CTRL_RESET|VIA_ACLINK_CTRL_SYNC);
2187                 udelay(2);
2188 #endif
2189                 /* ACLink on, deassert ACLink reset, VSR, SGD data out */
2190                 /* note - FM data out has trouble with non VRA codecs !! */
2191                 pci_write_config_byte(chip->pci, VIA_ACLINK_CTRL, VIA_ACLINK_CTRL_INIT);
2192                 udelay(100);
2193         }
2194         
2195         /* Make sure VRA is enabled, in case we didn't do a
2196          * complete codec reset, above */
2197         pci_read_config_byte(chip->pci, VIA_ACLINK_CTRL, &pval);
2198         if ((pval & VIA_ACLINK_CTRL_INIT) != VIA_ACLINK_CTRL_INIT) {
2199                 /* ACLink on, deassert ACLink reset, VSR, SGD data out */
2200                 /* note - FM data out has trouble with non VRA codecs !! */
2201                 pci_write_config_byte(chip->pci, VIA_ACLINK_CTRL, VIA_ACLINK_CTRL_INIT);
2202                 udelay(100);
2203         }
2204 
2205         /* wait until codec ready */
2206         end_time = jiffies + msecs_to_jiffies(750);
2207         do {
2208                 pci_read_config_byte(chip->pci, VIA_ACLINK_STAT, &pval);
2209                 if (pval & VIA_ACLINK_C00_READY) /* primary codec ready */
2210                         break;
2211                 schedule_timeout_uninterruptible(1);
2212         } while (time_before(jiffies, end_time));
2213 
2214         if ((val = snd_via82xx_codec_xread(chip)) & VIA_REG_AC97_BUSY)
2215                 dev_err(chip->card->dev,
2216                         "AC'97 codec is not ready [0x%x]\n", val);
2217 
2218 #if 0 /* FIXME: we don't support the second codec yet so skip the detection now.. */
2219         snd_via82xx_codec_xwrite(chip, VIA_REG_AC97_READ |
2220                                  VIA_REG_AC97_SECONDARY_VALID |
2221                                  (VIA_REG_AC97_CODEC_ID_SECONDARY << VIA_REG_AC97_CODEC_ID_SHIFT));
2222         end_time = jiffies + msecs_to_jiffies(750);
2223         snd_via82xx_codec_xwrite(chip, VIA_REG_AC97_READ |
2224                                  VIA_REG_AC97_SECONDARY_VALID |
2225                                  (VIA_REG_AC97_CODEC_ID_SECONDARY << VIA_REG_AC97_CODEC_ID_SHIFT));
2226         do {
2227                 if ((val = snd_via82xx_codec_xread(chip)) & VIA_REG_AC97_SECONDARY_VALID) {
2228                         chip->ac97_secondary = 1;
2229                         goto __ac97_ok2;
2230                 }
2231                 schedule_timeout_uninterruptible(1);
2232         } while (time_before(jiffies, end_time));
2233         /* This is ok, the most of motherboards have only one codec */
2234 
2235       __ac97_ok2:
2236 #endif
2237 
2238         if (chip->chip_type == TYPE_VIA686) {
2239                 /* route FM trap to IRQ, disable FM trap */
2240                 pci_write_config_byte(chip->pci, VIA_FM_NMI_CTRL, 0);
2241                 /* disable all GPI interrupts */
2242                 outl(0, VIAREG(chip, GPI_INTR));
2243         }
2244 
2245         if (chip->chip_type != TYPE_VIA686) {
2246                 /* Workaround for Award BIOS bug:
2247                  * DXS channels don't work properly with VRA if MC97 is disabled.
2248                  */
2249                 struct pci_dev *pci;
2250                 pci = pci_get_device(0x1106, 0x3068, NULL); /* MC97 */
2251                 if (pci) {
2252                         unsigned char data;
2253                         pci_read_config_byte(pci, 0x44, &data);
2254                         pci_write_config_byte(pci, 0x44, data | 0x40);
2255                         pci_dev_put(pci);
2256                 }
2257         }
2258 
2259         if (chip->chip_type != TYPE_VIA8233A) {
2260                 int i, idx;
2261                 for (idx = 0; idx < 4; idx++) {
2262                         unsigned long port = chip->port + 0x10 * idx;
2263                         for (i = 0; i < 2; i++) {
2264                                 chip->playback_volume[idx][i]=chip->playback_volume_c[i];
2265                                 outb(chip->playback_volume_c[i],
2266                                      port + VIA_REG_OFS_PLAYBACK_VOLUME_L + i);
2267                         }
2268                 }
2269         }
2270 
2271         return 0;
2272 }
2273 
2274 #ifdef CONFIG_PM_SLEEP
2275 /*
2276  * power management
2277  */
2278 static int snd_via82xx_suspend(struct device *dev)
2279 {
2280         struct pci_dev *pci = to_pci_dev(dev);
2281         struct snd_card *card = dev_get_drvdata(dev);
2282         struct via82xx *chip = card->private_data;
2283         int i;
2284 
2285         snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
2286         for (i = 0; i < 2; i++)
2287                 snd_pcm_suspend_all(chip->pcms[i]);
2288         for (i = 0; i < chip->num_devs; i++)
2289                 snd_via82xx_channel_reset(chip, &chip->devs[i]);
2290         synchronize_irq(chip->irq);
2291         snd_ac97_suspend(chip->ac97);
2292 
2293         /* save misc values */
2294         if (chip->chip_type != TYPE_VIA686) {
2295                 pci_read_config_byte(chip->pci, VIA8233_SPDIF_CTRL, &chip->spdif_ctrl_saved);
2296                 chip->capture_src_saved[0] = inb(chip->port + VIA_REG_CAPTURE_CHANNEL);
2297                 chip->capture_src_saved[1] = inb(chip->port + VIA_REG_CAPTURE_CHANNEL + 0x10);
2298         }
2299 
2300         pci_disable_device(pci);
2301         pci_save_state(pci);
2302         pci_set_power_state(pci, PCI_D3hot);
2303         return 0;
2304 }
2305 
2306 static int snd_via82xx_resume(struct device *dev)
2307 {
2308         struct pci_dev *pci = to_pci_dev(dev);
2309         struct snd_card *card = dev_get_drvdata(dev);
2310         struct via82xx *chip = card->private_data;
2311         int i;
2312 
2313         pci_set_power_state(pci, PCI_D0);
2314         pci_restore_state(pci);
2315         if (pci_enable_device(pci) < 0) {
2316                 dev_err(dev, "pci_enable_device failed, disabling device\n");
2317                 snd_card_disconnect(card);
2318                 return -EIO;
2319         }
2320         pci_set_master(pci);
2321 
2322         snd_via82xx_chip_init(chip);
2323 
2324         if (chip->chip_type == TYPE_VIA686) {
2325                 if (chip->mpu_port_saved)
2326                         pci_write_config_dword(chip->pci, 0x18, chip->mpu_port_saved | 0x01);
2327                 pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE, chip->legacy_saved);
2328                 pci_write_config_byte(chip->pci, VIA_PNP_CONTROL, chip->legacy_cfg_saved);
2329         } else {
2330                 pci_write_config_byte(chip->pci, VIA8233_SPDIF_CTRL, chip->spdif_ctrl_saved);
2331                 outb(chip->capture_src_saved[0], chip->port + VIA_REG_CAPTURE_CHANNEL);
2332                 outb(chip->capture_src_saved[1], chip->port + VIA_REG_CAPTURE_CHANNEL + 0x10);
2333         }
2334 
2335         snd_ac97_resume(chip->ac97);
2336 
2337         for (i = 0; i < chip->num_devs; i++)
2338                 snd_via82xx_channel_reset(chip, &chip->devs[i]);
2339 
2340         snd_power_change_state(card, SNDRV_CTL_POWER_D0);
2341         return 0;
2342 }
2343 
2344 static SIMPLE_DEV_PM_OPS(snd_via82xx_pm, snd_via82xx_suspend, snd_via82xx_resume);
2345 #define SND_VIA82XX_PM_OPS      &snd_via82xx_pm
2346 #else
2347 #define SND_VIA82XX_PM_OPS      NULL
2348 #endif /* CONFIG_PM_SLEEP */
2349 
2350 static int snd_via82xx_free(struct via82xx *chip)
2351 {
2352         unsigned int i;
2353 
2354         if (chip->irq < 0)
2355                 goto __end_hw;
2356         /* disable interrupts */
2357         for (i = 0; i < chip->num_devs; i++)
2358                 snd_via82xx_channel_reset(chip, &chip->devs[i]);
2359 
2360         if (chip->irq >= 0)
2361                 free_irq(chip->irq, chip);
2362  __end_hw:
2363         release_and_free_resource(chip->mpu_res);
2364         pci_release_regions(chip->pci);
2365 
2366         if (chip->chip_type == TYPE_VIA686) {
2367                 snd_via686_free_gameport(chip);
2368                 pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE, chip->old_legacy);
2369                 pci_write_config_byte(chip->pci, VIA_PNP_CONTROL, chip->old_legacy_cfg);
2370         }
2371         pci_disable_device(chip->pci);
2372         kfree(chip);
2373         return 0;
2374 }
2375 
2376 static int snd_via82xx_dev_free(struct snd_device *device)
2377 {
2378         struct via82xx *chip = device->device_data;
2379         return snd_via82xx_free(chip);
2380 }
2381 
2382 static int snd_via82xx_create(struct snd_card *card,
2383                               struct pci_dev *pci,
2384                               int chip_type,
2385                               int revision,
2386                               unsigned int ac97_clock,
2387                               struct via82xx **r_via)
2388 {
2389         struct via82xx *chip;
2390         int err;
2391         static struct snd_device_ops ops = {
2392                 .dev_free =     snd_via82xx_dev_free,
2393         };
2394 
2395         if ((err = pci_enable_device(pci)) < 0)
2396                 return err;
2397 
2398         if ((chip = kzalloc(sizeof(*chip), GFP_KERNEL)) == NULL) {
2399                 pci_disable_device(pci);
2400                 return -ENOMEM;
2401         }
2402 
2403         chip->chip_type = chip_type;
2404         chip->revision = revision;
2405 
2406         spin_lock_init(&chip->reg_lock);
2407         spin_lock_init(&chip->rates[0].lock);
2408         spin_lock_init(&chip->rates[1].lock);
2409         chip->card = card;
2410         chip->pci = pci;
2411         chip->irq = -1;
2412 
2413         pci_read_config_byte(pci, VIA_FUNC_ENABLE, &chip->old_legacy);
2414         pci_read_config_byte(pci, VIA_PNP_CONTROL, &chip->old_legacy_cfg);
2415         pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE,
2416                               chip->old_legacy & ~(VIA_FUNC_ENABLE_SB|VIA_FUNC_ENABLE_FM));
2417 
2418         if ((err = pci_request_regions(pci, card->driver)) < 0) {
2419                 kfree(chip);
2420                 pci_disable_device(pci);
2421                 return err;
2422         }
2423         chip->port = pci_resource_start(pci, 0);
2424         if (request_irq(pci->irq,
2425                         chip_type == TYPE_VIA8233 ?
2426                         snd_via8233_interrupt : snd_via686_interrupt,
2427                         IRQF_SHARED,
2428                         KBUILD_MODNAME, chip)) {
2429                 dev_err(card->dev, "unable to grab IRQ %d\n", pci->irq);
2430                 snd_via82xx_free(chip);
2431                 return -EBUSY;
2432         }
2433         chip->irq = pci->irq;
2434         if (ac97_clock >= 8000 && ac97_clock <= 48000)
2435                 chip->ac97_clock = ac97_clock;
2436         synchronize_irq(chip->irq);
2437 
2438         if ((err = snd_via82xx_chip_init(chip)) < 0) {
2439                 snd_via82xx_free(chip);
2440                 return err;
2441         }
2442 
2443         if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
2444                 snd_via82xx_free(chip);
2445                 return err;
2446         }
2447 
2448         /* The 8233 ac97 controller does not implement the master bit
2449          * in the pci command register. IMHO this is a violation of the PCI spec.
2450          * We call pci_set_master here because it does not hurt. */
2451         pci_set_master(pci);
2452 
2453         *r_via = chip;
2454         return 0;
2455 }
2456 
2457 struct via823x_info {
2458         int revision;
2459         char *name;
2460         int type;
2461 };
2462 static struct via823x_info via823x_cards[] = {
2463         { VIA_REV_PRE_8233, "VIA 8233-Pre", TYPE_VIA8233 },
2464         { VIA_REV_8233C, "VIA 8233C", TYPE_VIA8233 },
2465         { VIA_REV_8233, "VIA 8233", TYPE_VIA8233 },
2466         { VIA_REV_8233A, "VIA 8233A", TYPE_VIA8233A },
2467         { VIA_REV_8235, "VIA 8235", TYPE_VIA8233 },
2468         { VIA_REV_8237, "VIA 8237", TYPE_VIA8233 },
2469         { VIA_REV_8251, "VIA 8251", TYPE_VIA8233 },
2470 };
2471 
2472 /*
2473  * auto detection of DXS channel supports.
2474  */
2475 
2476 static struct snd_pci_quirk dxs_whitelist[] = {
2477         SND_PCI_QUIRK(0x1005, 0x4710, "Avance Logic Mobo", VIA_DXS_ENABLE),
2478         SND_PCI_QUIRK(0x1019, 0x0996, "ESC Mobo", VIA_DXS_48K),
2479         SND_PCI_QUIRK(0x1019, 0x0a81, "ECS K7VTA3 v8.0", VIA_DXS_NO_VRA),
2480         SND_PCI_QUIRK(0x1019, 0x0a85, "ECS L7VMM2", VIA_DXS_NO_VRA),
2481         SND_PCI_QUIRK_VENDOR(0x1019, "ESC K8", VIA_DXS_SRC),
2482         SND_PCI_QUIRK(0x1019, 0xaa01, "ESC K8T890-A", VIA_DXS_SRC),
2483         SND_PCI_QUIRK(0x1025, 0x0033, "Acer Inspire 1353LM", VIA_DXS_NO_VRA),
2484         SND_PCI_QUIRK(0x1025, 0x0046, "Acer Aspire 1524 WLMi", VIA_DXS_SRC),
2485         SND_PCI_QUIRK_VENDOR(0x1043, "ASUS A7/A8", VIA_DXS_NO_VRA),
2486         SND_PCI_QUIRK_VENDOR(0x1071, "Diverse Notebook", VIA_DXS_NO_VRA),
2487         SND_PCI_QUIRK(0x10cf, 0x118e, "FSC Laptop", VIA_DXS_ENABLE),
2488         SND_PCI_QUIRK_VENDOR(0x1106, "ASRock", VIA_DXS_SRC),
2489         SND_PCI_QUIRK(0x1297, 0xa231, "Shuttle AK31v2", VIA_DXS_SRC),
2490         SND_PCI_QUIRK(0x1297, 0xa232, "Shuttle", VIA_DXS_SRC),
2491         SND_PCI_QUIRK(0x1297, 0xc160, "Shuttle Sk41G", VIA_DXS_SRC),
2492         SND_PCI_QUIRK(0x1458, 0xa002, "Gigabyte GA-7VAXP", VIA_DXS_ENABLE),
2493         SND_PCI_QUIRK(0x1462, 0x3800, "MSI KT266", VIA_DXS_ENABLE),
2494         SND_PCI_QUIRK(0x1462, 0x7120, "MSI KT4V", VIA_DXS_ENABLE),
2495         SND_PCI_QUIRK(0x1462, 0x7142, "MSI K8MM-V", VIA_DXS_ENABLE),
2496         SND_PCI_QUIRK_VENDOR(0x1462, "MSI Mobo", VIA_DXS_SRC),
2497         SND_PCI_QUIRK(0x147b, 0x1401, "ABIT KD7(-RAID)", VIA_DXS_ENABLE),
2498         SND_PCI_QUIRK(0x147b, 0x1411, "ABIT VA-20", VIA_DXS_ENABLE),
2499         SND_PCI_QUIRK(0x147b, 0x1413, "ABIT KV8 Pro", VIA_DXS_ENABLE),
2500         SND_PCI_QUIRK(0x147b, 0x1415, "ABIT AV8", VIA_DXS_NO_VRA),
2501         SND_PCI_QUIRK(0x14ff, 0x0403, "Twinhead mobo", VIA_DXS_ENABLE),
2502         SND_PCI_QUIRK(0x14ff, 0x0408, "Twinhead laptop", VIA_DXS_SRC),
2503         SND_PCI_QUIRK(0x1558, 0x4701, "Clevo D470", VIA_DXS_SRC),
2504         SND_PCI_QUIRK(0x1584, 0x8120, "Diverse Laptop", VIA_DXS_ENABLE),
2505         SND_PCI_QUIRK(0x1584, 0x8123, "Targa/Uniwill", VIA_DXS_NO_VRA),
2506         SND_PCI_QUIRK(0x161f, 0x202b, "Amira Notebook", VIA_DXS_NO_VRA),
2507         SND_PCI_QUIRK(0x161f, 0x2032, "m680x machines", VIA_DXS_48K),
2508         SND_PCI_QUIRK(0x1631, 0xe004, "PB EasyNote 3174", VIA_DXS_ENABLE),
2509         SND_PCI_QUIRK(0x1695, 0x3005, "EPoX EP-8K9A", VIA_DXS_ENABLE),
2510         SND_PCI_QUIRK_VENDOR(0x1695, "EPoX mobo", VIA_DXS_SRC),
2511         SND_PCI_QUIRK_VENDOR(0x16f3, "Jetway K8", VIA_DXS_SRC),
2512         SND_PCI_QUIRK_VENDOR(0x1734, "FSC Laptop", VIA_DXS_SRC),
2513         SND_PCI_QUIRK(0x1849, 0x3059, "ASRock K7VM2", VIA_DXS_NO_VRA),
2514         SND_PCI_QUIRK_VENDOR(0x1849, "ASRock mobo", VIA_DXS_SRC),
2515         SND_PCI_QUIRK(0x1919, 0x200a, "Soltek SL-K8",  VIA_DXS_NO_VRA),
2516         SND_PCI_QUIRK(0x4005, 0x4710, "MSI K7T266", VIA_DXS_SRC),
2517         { } /* terminator */
2518 };
2519 
2520 static int check_dxs_list(struct pci_dev *pci, int revision)
2521 {
2522         const struct snd_pci_quirk *w;
2523 
2524         w = snd_pci_quirk_lookup(pci, dxs_whitelist);
2525         if (w) {
2526                 dev_dbg(&pci->dev, "DXS white list for %s found\n",
2527                             snd_pci_quirk_name(w));
2528                 return w->value;
2529         }
2530 
2531         /* for newer revision, default to DXS_SRC */
2532         if (revision >= VIA_REV_8235)
2533                 return VIA_DXS_SRC;
2534 
2535         /*
2536          * not detected, try 48k rate only to be sure.
2537          */
2538         dev_info(&pci->dev, "Assuming DXS channels with 48k fixed sample rate.\n");
2539         dev_info(&pci->dev, "         Please try dxs_support=5 option\n");
2540         dev_info(&pci->dev, "         and report if it works on your machine.\n");
2541         dev_info(&pci->dev, "         For more details, read ALSA-Configuration.txt.\n");
2542         return VIA_DXS_48K;
2543 };
2544 
2545 static int snd_via82xx_probe(struct pci_dev *pci,
2546                              const struct pci_device_id *pci_id)
2547 {
2548         struct snd_card *card;
2549         struct via82xx *chip;
2550         int chip_type = 0, card_type;
2551         unsigned int i;
2552         int err;
2553 
2554         err = snd_card_new(&pci->dev, index, id, THIS_MODULE, 0, &card);
2555         if (err < 0)
2556                 return err;
2557 
2558         card_type = pci_id->driver_data;
2559         switch (card_type) {
2560         case TYPE_CARD_VIA686:
2561                 strcpy(card->driver, "VIA686A");
2562                 sprintf(card->shortname, "VIA 82C686A/B rev%x", pci->revision);
2563                 chip_type = TYPE_VIA686;
2564                 break;
2565         case TYPE_CARD_VIA8233:
2566                 chip_type = TYPE_VIA8233;
2567                 sprintf(card->shortname, "VIA 823x rev%x", pci->revision);
2568                 for (i = 0; i < ARRAY_SIZE(via823x_cards); i++) {
2569                         if (pci->revision == via823x_cards[i].revision) {
2570                                 chip_type = via823x_cards[i].type;
2571                                 strcpy(card->shortname, via823x_cards[i].name);
2572                                 break;
2573                         }
2574                 }
2575                 if (chip_type != TYPE_VIA8233A) {
2576                         if (dxs_support == VIA_DXS_AUTO)
2577                                 dxs_support = check_dxs_list(pci, pci->revision);
2578                         /* force to use VIA8233 or 8233A model according to
2579                          * dxs_support module option
2580                          */
2581                         if (dxs_support == VIA_DXS_DISABLE)
2582                                 chip_type = TYPE_VIA8233A;
2583                         else
2584                                 chip_type = TYPE_VIA8233;
2585                 }
2586                 if (chip_type == TYPE_VIA8233A)
2587                         strcpy(card->driver, "VIA8233A");
2588                 else if (pci->revision >= VIA_REV_8237)
2589                         strcpy(card->driver, "VIA8237"); /* no slog assignment */
2590                 else
2591                         strcpy(card->driver, "VIA8233");
2592                 break;
2593         default:
2594                 dev_err(card->dev, "invalid card type %d\n", card_type);
2595                 err = -EINVAL;
2596                 goto __error;
2597         }
2598                 
2599         if ((err = snd_via82xx_create(card, pci, chip_type, pci->revision,
2600                                       ac97_clock, &chip)) < 0)
2601                 goto __error;
2602         card->private_data = chip;
2603         if ((err = snd_via82xx_mixer_new(chip, ac97_quirk)) < 0)
2604                 goto __error;
2605 
2606         if (chip_type == TYPE_VIA686) {
2607                 if ((err = snd_via686_pcm_new(chip)) < 0 ||
2608                     (err = snd_via686_init_misc(chip)) < 0)
2609                         goto __error;
2610         } else {
2611                 if (chip_type == TYPE_VIA8233A) {
2612                         if ((err = snd_via8233a_pcm_new(chip)) < 0)
2613                                 goto __error;
2614                         // chip->dxs_fixed = 1; /* FIXME: use 48k for DXS #3? */
2615                 } else {
2616                         if ((err = snd_via8233_pcm_new(chip)) < 0)
2617                                 goto __error;
2618                         if (dxs_support == VIA_DXS_48K)
2619                                 chip->dxs_fixed = 1;
2620                         else if (dxs_support == VIA_DXS_NO_VRA)
2621                                 chip->no_vra = 1;
2622                         else if (dxs_support == VIA_DXS_SRC) {
2623                                 chip->no_vra = 1;
2624                                 chip->dxs_src = 1;
2625                         }
2626                 }
2627                 if ((err = snd_via8233_init_misc(chip)) < 0)
2628                         goto __error;
2629         }
2630 
2631         /* disable interrupts */
2632         for (i = 0; i < chip->num_devs; i++)
2633                 snd_via82xx_channel_reset(chip, &chip->devs[i]);
2634 
2635         snprintf(card->longname, sizeof(card->longname),
2636                  "%s with %s at %#lx, irq %d", card->shortname,
2637                  snd_ac97_get_short_name(chip->ac97), chip->port, chip->irq);
2638 
2639         snd_via82xx_proc_init(chip);
2640 
2641         if ((err = snd_card_register(card)) < 0) {
2642                 snd_card_free(card);
2643                 return err;
2644         }
2645         pci_set_drvdata(pci, card);
2646         return 0;
2647 
2648  __error:
2649         snd_card_free(card);
2650         return err;
2651 }
2652 
2653 static void snd_via82xx_remove(struct pci_dev *pci)
2654 {
2655         snd_card_free(pci_get_drvdata(pci));
2656 }
2657 
2658 static struct pci_driver via82xx_driver = {
2659         .name = KBUILD_MODNAME,
2660         .id_table = snd_via82xx_ids,
2661         .probe = snd_via82xx_probe,
2662         .remove = snd_via82xx_remove,
2663         .driver = {
2664                 .pm = SND_VIA82XX_PM_OPS,
2665         },
2666 };
2667 
2668 module_pci_driver(via82xx_driver);
2669 

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