~ [ source navigation ] ~ [ diff markup ] ~ [ identifier search ] ~

TOMOYO Linux Cross Reference
Linux/sound/pci/via82xx.c

Version: ~ [ linux-5.3-rc5 ] ~ [ linux-5.2.9 ] ~ [ linux-5.1.21 ] ~ [ linux-5.0.21 ] ~ [ linux-4.20.17 ] ~ [ linux-4.19.67 ] ~ [ linux-4.18.20 ] ~ [ linux-4.17.19 ] ~ [ linux-4.16.18 ] ~ [ linux-4.15.18 ] ~ [ linux-4.14.139 ] ~ [ linux-4.13.16 ] ~ [ linux-4.12.14 ] ~ [ linux-4.11.12 ] ~ [ linux-4.10.17 ] ~ [ linux-4.9.189 ] ~ [ linux-4.8.17 ] ~ [ linux-4.7.10 ] ~ [ linux-4.6.7 ] ~ [ linux-4.5.7 ] ~ [ linux-4.4.189 ] ~ [ linux-4.3.6 ] ~ [ linux-4.2.8 ] ~ [ linux-4.1.52 ] ~ [ linux-4.0.9 ] ~ [ linux-3.19.8 ] ~ [ linux-3.18.140 ] ~ [ linux-3.17.8 ] ~ [ linux-3.16.72 ] ~ [ linux-3.15.10 ] ~ [ linux-3.14.79 ] ~ [ linux-3.13.11 ] ~ [ linux-3.12.74 ] ~ [ linux-3.11.10 ] ~ [ linux-3.10.108 ] ~ [ linux-3.9.11 ] ~ [ linux-3.8.13 ] ~ [ linux-3.7.10 ] ~ [ linux-3.6.11 ] ~ [ linux-3.5.7 ] ~ [ linux-3.4.113 ] ~ [ linux-3.3.8 ] ~ [ linux-3.2.102 ] ~ [ linux-3.1.10 ] ~ [ linux-3.0.101 ] ~ [ linux-2.6.32.71 ] ~ [ linux-2.6.0 ] ~ [ linux-2.4.37.11 ] ~ [ unix-v6-master ] ~ [ ccs-tools-1.8.5 ] ~ [ policy-sample ] ~
Architecture: ~ [ i386 ] ~ [ alpha ] ~ [ m68k ] ~ [ mips ] ~ [ ppc ] ~ [ sparc ] ~ [ sparc64 ] ~

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

~ [ source navigation ] ~ [ diff markup ] ~ [ identifier search ] ~

kernel.org | git.kernel.org | LWN.net | Project Home | Wiki (Japanese) | Wiki (English) | SVN repository | Mail admin

Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.

osdn.jp