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1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3  *   ALSA driver for VIA VT82xx (South Bridge)
4  *
5  *   VT82C686A/B/C, VT8233A/C, VT8235
6  *
7  *	Copyright (c) 2000 Jaroslav Kysela <perex@perex.cz>
8  *	                   Tjeerd.Mulder <Tjeerd.Mulder@fujitsu-siemens.com>
9  *                    2002 Takashi Iwai <tiwai@suse.de>
10  */
11 
12 /*
13  * Changes:
14  *
15  * Dec. 19, 2002	Takashi Iwai <tiwai@suse.de>
16  *	- use the DSX channels for the first pcm playback.
17  *	  (on VIA8233, 8233C and 8235 only)
18  *	  this will allow you play simultaneously up to 4 streams.
19  *	  multi-channel playback is assigned to the second device
20  *	  on these chips.
21  *	- support the secondary capture (on VIA8233/C,8235)
22  *	- SPDIF support
23  *	  the DSX3 channel can be used for SPDIF output.
24  *	  on VIA8233A, this channel is assigned to the second pcm
25  *	  playback.
26  *	  the card config of alsa-lib will assign the correct
27  *	  device for applications.
28  *	- clean up the code, separate low-level initialization
29  *	  routines for each chipset.
30  *
31  * Sep. 26, 2005	Karsten Wiese <annabellesgarden@yahoo.de>
32  *	- Optimize position calculation for the 823x chips.
33  */
34 
35 #include <linux/io.h>
36 #include <linux/delay.h>
37 #include <linux/interrupt.h>
38 #include <linux/init.h>
39 #include <linux/pci.h>
40 #include <linux/slab.h>
41 #include <linux/gameport.h>
42 #include <linux/module.h>
43 #include <sound/core.h>
44 #include <sound/pcm.h>
45 #include <sound/pcm_params.h>
46 #include <sound/info.h>
47 #include <sound/tlv.h>
48 #include <sound/ac97_codec.h>
49 #include <sound/mpu401.h>
50 #include <sound/initval.h>
51 
52 #if 0
53 #define POINTER_DEBUG
54 #endif
55 
56 MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
57 MODULE_DESCRIPTION("VIA VT82xx audio");
58 MODULE_LICENSE("GPL");
59 MODULE_SUPPORTED_DEVICE("{{VIA,VT82C686A/B/C,pci},{VIA,VT8233A/C,8235}}");
60 
61 #if IS_REACHABLE(CONFIG_GAMEPORT)
62 #define SUPPORT_JOYSTICK 1
63 #endif
64 
65 static int index = SNDRV_DEFAULT_IDX1;	/* Index 0-MAX */
66 static char *id = SNDRV_DEFAULT_STR1;	/* ID for this card */
67 static long mpu_port;
68 #ifdef SUPPORT_JOYSTICK
69 static bool joystick;
70 #endif
71 static int ac97_clock = 48000;
72 static char *ac97_quirk;
73 static int dxs_support;
74 static int dxs_init_volume = 31;
75 static int nodelay;
76 
77 module_param(index, int, 0444);
78 MODULE_PARM_DESC(index, "Index value for VIA 82xx bridge.");
79 module_param(id, charp, 0444);
80 MODULE_PARM_DESC(id, "ID string for VIA 82xx bridge.");
81 module_param_hw(mpu_port, long, ioport, 0444);
82 MODULE_PARM_DESC(mpu_port, "MPU-401 port. (VT82C686x only)");
83 #ifdef SUPPORT_JOYSTICK
84 module_param(joystick, bool, 0444);
85 MODULE_PARM_DESC(joystick, "Enable joystick. (VT82C686x only)");
86 #endif
87 module_param(ac97_clock, int, 0444);
88 MODULE_PARM_DESC(ac97_clock, "AC'97 codec clock (default 48000Hz).");
89 module_param(ac97_quirk, charp, 0444);
90 MODULE_PARM_DESC(ac97_quirk, "AC'97 workaround for strange hardware.");
91 module_param(dxs_support, int, 0444);
92 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)");
93 module_param(dxs_init_volume, int, 0644);
94 MODULE_PARM_DESC(dxs_init_volume, "initial DXS volume (0-31)");
95 module_param(nodelay, int, 0444);
96 MODULE_PARM_DESC(nodelay, "Disable 500ms init delay");
97 
98 /* just for backward compatibility */
99 static bool enable;
100 module_param(enable, bool, 0444);
101 
102 
103 /* revision numbers for via686 */
104 #define VIA_REV_686_A		0x10
105 #define VIA_REV_686_B		0x11
106 #define VIA_REV_686_C		0x12
107 #define VIA_REV_686_D		0x13
108 #define VIA_REV_686_E		0x14
109 #define VIA_REV_686_H		0x20
110 
111 /* revision numbers for via8233 */
112 #define VIA_REV_PRE_8233	0x10	/* not in market */
113 #define VIA_REV_8233C		0x20	/* 2 rec, 4 pb, 1 multi-pb */
114 #define VIA_REV_8233		0x30	/* 2 rec, 4 pb, 1 multi-pb, spdif */
115 #define VIA_REV_8233A		0x40	/* 1 rec, 1 multi-pb, spdf */
116 #define VIA_REV_8235		0x50	/* 2 rec, 4 pb, 1 multi-pb, spdif */
117 #define VIA_REV_8237		0x60
118 #define VIA_REV_8251		0x70
119 
120 /*
121  *  Direct registers
122  */
123 
124 #define VIAREG(via, x) ((via)->port + VIA_REG_##x)
125 #define VIADEV_REG(viadev, x) ((viadev)->port + VIA_REG_##x)
126 
127 /* common offsets */
128 #define VIA_REG_OFFSET_STATUS		0x00	/* byte - channel status */
129 #define   VIA_REG_STAT_ACTIVE		0x80	/* RO */
130 #define   VIA8233_SHADOW_STAT_ACTIVE	0x08	/* RO */
131 #define   VIA_REG_STAT_PAUSED		0x40	/* RO */
132 #define   VIA_REG_STAT_TRIGGER_QUEUED	0x08	/* RO */
133 #define   VIA_REG_STAT_STOPPED		0x04	/* RWC */
134 #define   VIA_REG_STAT_EOL		0x02	/* RWC */
135 #define   VIA_REG_STAT_FLAG		0x01	/* RWC */
136 #define VIA_REG_OFFSET_CONTROL		0x01	/* byte - channel control */
137 #define   VIA_REG_CTRL_START		0x80	/* WO */
138 #define   VIA_REG_CTRL_TERMINATE	0x40	/* WO */
139 #define   VIA_REG_CTRL_AUTOSTART	0x20
140 #define   VIA_REG_CTRL_PAUSE		0x08	/* RW */
141 #define   VIA_REG_CTRL_INT_STOP		0x04
142 #define   VIA_REG_CTRL_INT_EOL		0x02
143 #define   VIA_REG_CTRL_INT_FLAG		0x01
144 #define   VIA_REG_CTRL_RESET		0x01	/* RW - probably reset? undocumented */
145 #define   VIA_REG_CTRL_INT (VIA_REG_CTRL_INT_FLAG | VIA_REG_CTRL_INT_EOL | VIA_REG_CTRL_AUTOSTART)
146 #define VIA_REG_OFFSET_TYPE		0x02	/* byte - channel type (686 only) */
147 #define   VIA_REG_TYPE_AUTOSTART	0x80	/* RW - autostart at EOL */
148 #define   VIA_REG_TYPE_16BIT		0x20	/* RW */
149 #define   VIA_REG_TYPE_STEREO		0x10	/* RW */
150 #define   VIA_REG_TYPE_INT_LLINE	0x00
151 #define   VIA_REG_TYPE_INT_LSAMPLE	0x04
152 #define   VIA_REG_TYPE_INT_LESSONE	0x08
153 #define   VIA_REG_TYPE_INT_MASK		0x0c
154 #define   VIA_REG_TYPE_INT_EOL		0x02
155 #define   VIA_REG_TYPE_INT_FLAG		0x01
156 #define VIA_REG_OFFSET_TABLE_PTR	0x04	/* dword - channel table pointer */
157 #define VIA_REG_OFFSET_CURR_PTR		0x04	/* dword - channel current pointer */
158 #define VIA_REG_OFFSET_STOP_IDX		0x08	/* dword - stop index, channel type, sample rate */
159 #define   VIA8233_REG_TYPE_16BIT	0x00200000	/* RW */
160 #define   VIA8233_REG_TYPE_STEREO	0x00100000	/* RW */
161 #define VIA_REG_OFFSET_CURR_COUNT	0x0c	/* dword - channel current count (24 bit) */
162 #define VIA_REG_OFFSET_CURR_INDEX	0x0f	/* byte - channel current index (for via8233 only) */
163 
164 #define DEFINE_VIA_REGSET(name,val) \
165 enum {\
166 	VIA_REG_##name##_STATUS		= (val),\
167 	VIA_REG_##name##_CONTROL	= (val) + 0x01,\
168 	VIA_REG_##name##_TYPE		= (val) + 0x02,\
169 	VIA_REG_##name##_TABLE_PTR	= (val) + 0x04,\
170 	VIA_REG_##name##_CURR_PTR	= (val) + 0x04,\
171 	VIA_REG_##name##_STOP_IDX	= (val) + 0x08,\
172 	VIA_REG_##name##_CURR_COUNT	= (val) + 0x0c,\
173 }
174 
175 /* playback block */
176 DEFINE_VIA_REGSET(PLAYBACK, 0x00);
177 DEFINE_VIA_REGSET(CAPTURE, 0x10);
178 DEFINE_VIA_REGSET(FM, 0x20);
179 
180 /* AC'97 */
181 #define VIA_REG_AC97			0x80	/* dword */
182 #define   VIA_REG_AC97_CODEC_ID_MASK	(3<<30)
183 #define   VIA_REG_AC97_CODEC_ID_SHIFT	30
184 #define   VIA_REG_AC97_CODEC_ID_PRIMARY	0x00
185 #define   VIA_REG_AC97_CODEC_ID_SECONDARY 0x01
186 #define   VIA_REG_AC97_SECONDARY_VALID	(1<<27)
187 #define   VIA_REG_AC97_PRIMARY_VALID	(1<<25)
188 #define   VIA_REG_AC97_BUSY		(1<<24)
189 #define   VIA_REG_AC97_READ		(1<<23)
190 #define   VIA_REG_AC97_CMD_SHIFT	16
191 #define   VIA_REG_AC97_CMD_MASK		0x7e
192 #define   VIA_REG_AC97_DATA_SHIFT	0
193 #define   VIA_REG_AC97_DATA_MASK	0xffff
194 
195 #define VIA_REG_SGD_SHADOW		0x84	/* dword */
196 /* via686 */
197 #define   VIA_REG_SGD_STAT_PB_FLAG	(1<<0)
198 #define   VIA_REG_SGD_STAT_CP_FLAG	(1<<1)
199 #define   VIA_REG_SGD_STAT_FM_FLAG	(1<<2)
200 #define   VIA_REG_SGD_STAT_PB_EOL	(1<<4)
201 #define   VIA_REG_SGD_STAT_CP_EOL	(1<<5)
202 #define   VIA_REG_SGD_STAT_FM_EOL	(1<<6)
203 #define   VIA_REG_SGD_STAT_PB_STOP	(1<<8)
204 #define   VIA_REG_SGD_STAT_CP_STOP	(1<<9)
205 #define   VIA_REG_SGD_STAT_FM_STOP	(1<<10)
206 #define   VIA_REG_SGD_STAT_PB_ACTIVE	(1<<12)
207 #define   VIA_REG_SGD_STAT_CP_ACTIVE	(1<<13)
208 #define   VIA_REG_SGD_STAT_FM_ACTIVE	(1<<14)
209 /* via8233 */
210 #define   VIA8233_REG_SGD_STAT_FLAG	(1<<0)
211 #define   VIA8233_REG_SGD_STAT_EOL	(1<<1)
212 #define   VIA8233_REG_SGD_STAT_STOP	(1<<2)
213 #define   VIA8233_REG_SGD_STAT_ACTIVE	(1<<3)
214 #define VIA8233_INTR_MASK(chan) ((VIA8233_REG_SGD_STAT_FLAG|VIA8233_REG_SGD_STAT_EOL) << ((chan) * 4))
215 #define   VIA8233_REG_SGD_CHAN_SDX	0
216 #define   VIA8233_REG_SGD_CHAN_MULTI	4
217 #define   VIA8233_REG_SGD_CHAN_REC	6
218 #define   VIA8233_REG_SGD_CHAN_REC1	7
219 
220 #define VIA_REG_GPI_STATUS		0x88
221 #define VIA_REG_GPI_INTR		0x8c
222 
223 /* multi-channel and capture registers for via8233 */
224 DEFINE_VIA_REGSET(MULTPLAY, 0x40);
225 DEFINE_VIA_REGSET(CAPTURE_8233, 0x60);
226 
227 /* via8233-specific registers */
228 #define VIA_REG_OFS_PLAYBACK_VOLUME_L	0x02	/* byte */
229 #define VIA_REG_OFS_PLAYBACK_VOLUME_R	0x03	/* byte */
230 #define VIA_REG_OFS_MULTPLAY_FORMAT	0x02	/* byte - format and channels */
231 #define   VIA_REG_MULTPLAY_FMT_8BIT	0x00
232 #define   VIA_REG_MULTPLAY_FMT_16BIT	0x80
233 #define   VIA_REG_MULTPLAY_FMT_CH_MASK	0x70	/* # channels << 4 (valid = 1,2,4,6) */
234 #define VIA_REG_OFS_CAPTURE_FIFO	0x02	/* byte - bit 6 = fifo  enable */
235 #define   VIA_REG_CAPTURE_FIFO_ENABLE	0x40
236 
237 #define VIA_DXS_MAX_VOLUME		31	/* max. volume (attenuation) of reg 0x32/33 */
238 
239 #define VIA_REG_CAPTURE_CHANNEL		0x63	/* byte - input select */
240 #define   VIA_REG_CAPTURE_CHANNEL_MIC	0x4
241 #define   VIA_REG_CAPTURE_CHANNEL_LINE	0
242 #define   VIA_REG_CAPTURE_SELECT_CODEC	0x03	/* recording source codec (0 = primary) */
243 
244 #define VIA_TBL_BIT_FLAG	0x40000000
245 #define VIA_TBL_BIT_EOL		0x80000000
246 
247 /* pci space */
248 #define VIA_ACLINK_STAT		0x40
249 #define  VIA_ACLINK_C11_READY	0x20
250 #define  VIA_ACLINK_C10_READY	0x10
251 #define  VIA_ACLINK_C01_READY	0x04 /* secondary codec ready */
252 #define  VIA_ACLINK_LOWPOWER	0x02 /* low-power state */
253 #define  VIA_ACLINK_C00_READY	0x01 /* primary codec ready */
254 #define VIA_ACLINK_CTRL		0x41
255 #define  VIA_ACLINK_CTRL_ENABLE	0x80 /* 0: disable, 1: enable */
256 #define  VIA_ACLINK_CTRL_RESET	0x40 /* 0: assert, 1: de-assert */
257 #define  VIA_ACLINK_CTRL_SYNC	0x20 /* 0: release SYNC, 1: force SYNC hi */
258 #define  VIA_ACLINK_CTRL_SDO	0x10 /* 0: release SDO, 1: force SDO hi */
259 #define  VIA_ACLINK_CTRL_VRA	0x08 /* 0: disable VRA, 1: enable VRA */
260 #define  VIA_ACLINK_CTRL_PCM	0x04 /* 0: disable PCM, 1: enable PCM */
261 #define  VIA_ACLINK_CTRL_FM	0x02 /* via686 only */
262 #define  VIA_ACLINK_CTRL_SB	0x01 /* via686 only */
263 #define  VIA_ACLINK_CTRL_INIT	(VIA_ACLINK_CTRL_ENABLE|\
264 				 VIA_ACLINK_CTRL_RESET|\
265 				 VIA_ACLINK_CTRL_PCM|\
266 				 VIA_ACLINK_CTRL_VRA)
267 #define VIA_FUNC_ENABLE		0x42
268 #define  VIA_FUNC_MIDI_PNP	0x80 /* FIXME: it's 0x40 in the datasheet! */
269 #define  VIA_FUNC_MIDI_IRQMASK	0x40 /* FIXME: not documented! */
270 #define  VIA_FUNC_RX2C_WRITE	0x20
271 #define  VIA_FUNC_SB_FIFO_EMPTY	0x10
272 #define  VIA_FUNC_ENABLE_GAME	0x08
273 #define  VIA_FUNC_ENABLE_FM	0x04
274 #define  VIA_FUNC_ENABLE_MIDI	0x02
275 #define  VIA_FUNC_ENABLE_SB	0x01
276 #define VIA_PNP_CONTROL		0x43
277 #define VIA_FM_NMI_CTRL		0x48
278 #define VIA8233_VOLCHG_CTRL	0x48
279 #define VIA8233_SPDIF_CTRL	0x49
280 #define  VIA8233_SPDIF_DX3	0x08
281 #define  VIA8233_SPDIF_SLOT_MASK	0x03
282 #define  VIA8233_SPDIF_SLOT_1011	0x00
283 #define  VIA8233_SPDIF_SLOT_34		0x01
284 #define  VIA8233_SPDIF_SLOT_78		0x02
285 #define  VIA8233_SPDIF_SLOT_69		0x03
286 
287 /*
288  */
289 
290 #define VIA_DXS_AUTO	0
291 #define VIA_DXS_ENABLE	1
292 #define VIA_DXS_DISABLE	2
293 #define VIA_DXS_48K	3
294 #define VIA_DXS_NO_VRA	4
295 #define VIA_DXS_SRC	5
296 
297 
298 /*
299  * pcm stream
300  */
301 
302 struct snd_via_sg_table {
303 	unsigned int offset;
304 	unsigned int size;
305 } ;
306 
307 #define VIA_TABLE_SIZE	255
308 #define VIA_MAX_BUFSIZE	(1<<24)
309 
310 struct viadev {
311 	unsigned int reg_offset;
312 	unsigned long port;
313 	int direction;	/* playback = 0, capture = 1 */
314         struct snd_pcm_substream *substream;
315 	int running;
316 	unsigned int tbl_entries; /* # descriptors */
317 	struct snd_dma_buffer table;
318 	struct snd_via_sg_table *idx_table;
319 	/* for recovery from the unexpected pointer */
320 	unsigned int lastpos;
321 	unsigned int fragsize;
322 	unsigned int bufsize;
323 	unsigned int bufsize2;
324 	int hwptr_done;		/* processed frame position in the buffer */
325 	int in_interrupt;
326 	int shadow_shift;
327 };
328 
329 
330 enum { TYPE_CARD_VIA686 = 1, TYPE_CARD_VIA8233 };
331 enum { TYPE_VIA686, TYPE_VIA8233, TYPE_VIA8233A };
332 
333 #define VIA_MAX_DEVS	7	/* 4 playback, 1 multi, 2 capture */
334 
335 struct via_rate_lock {
336 	spinlock_t lock;
337 	int rate;
338 	int used;
339 };
340 
341 struct via82xx {
342 	int irq;
343 
344 	unsigned long port;
345 	struct resource *mpu_res;
346 	int chip_type;
347 	unsigned char revision;
348 
349 	unsigned char old_legacy;
350 	unsigned char old_legacy_cfg;
351 #ifdef CONFIG_PM_SLEEP
352 	unsigned char legacy_saved;
353 	unsigned char legacy_cfg_saved;
354 	unsigned char spdif_ctrl_saved;
355 	unsigned char capture_src_saved[2];
356 	unsigned int mpu_port_saved;
357 #endif
358 
359 	unsigned char playback_volume[4][2]; /* for VIA8233/C/8235; default = 0 */
360 	unsigned char playback_volume_c[2]; /* for VIA8233/C/8235; default = 0 */
361 
362 	unsigned int intr_mask; /* SGD_SHADOW mask to check interrupts */
363 
364 	struct pci_dev *pci;
365 	struct snd_card *card;
366 
367 	unsigned int num_devs;
368 	unsigned int playback_devno, multi_devno, capture_devno;
369 	struct viadev devs[VIA_MAX_DEVS];
370 	struct via_rate_lock rates[2]; /* playback and capture */
371 	unsigned int dxs_fixed: 1;	/* DXS channel accepts only 48kHz */
372 	unsigned int no_vra: 1;		/* no need to set VRA on DXS channels */
373 	unsigned int dxs_src: 1;	/* use full SRC capabilities of DXS */
374 	unsigned int spdif_on: 1;	/* only spdif rates work to external DACs */
375 
376 	struct snd_pcm *pcms[2];
377 	struct snd_rawmidi *rmidi;
378 	struct snd_kcontrol *dxs_controls[4];
379 
380 	struct snd_ac97_bus *ac97_bus;
381 	struct snd_ac97 *ac97;
382 	unsigned int ac97_clock;
383 	unsigned int ac97_secondary;	/* secondary AC'97 codec is present */
384 
385 	spinlock_t reg_lock;
386 	struct snd_info_entry *proc_entry;
387 
388 #ifdef SUPPORT_JOYSTICK
389 	struct gameport *gameport;
390 #endif
391 };
392 
393 static const struct pci_device_id snd_via82xx_ids[] = {
394 	/* 0x1106, 0x3058 */
395 	{ PCI_VDEVICE(VIA, PCI_DEVICE_ID_VIA_82C686_5), TYPE_CARD_VIA686, },	/* 686A */
396 	/* 0x1106, 0x3059 */
397 	{ PCI_VDEVICE(VIA, PCI_DEVICE_ID_VIA_8233_5), TYPE_CARD_VIA8233, },	/* VT8233 */
398 	{ 0, }
399 };
400 
401 MODULE_DEVICE_TABLE(pci, snd_via82xx_ids);
402 
403 /*
404  */
405 
406 /*
407  * allocate and initialize the descriptor buffers
408  * periods = number of periods
409  * fragsize = period size in bytes
410  */
build_via_table(struct viadev * dev,struct snd_pcm_substream * substream,struct pci_dev * pci,unsigned int periods,unsigned int fragsize)411 static int build_via_table(struct viadev *dev, struct snd_pcm_substream *substream,
412 			   struct pci_dev *pci,
413 			   unsigned int periods, unsigned int fragsize)
414 {
415 	unsigned int i, idx, ofs, rest;
416 	struct via82xx *chip = snd_pcm_substream_chip(substream);
417 
418 	if (dev->table.area == NULL) {
419 		/* the start of each lists must be aligned to 8 bytes,
420 		 * but the kernel pages are much bigger, so we don't care
421 		 */
422 		if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(chip->pci),
423 					PAGE_ALIGN(VIA_TABLE_SIZE * 2 * 8),
424 					&dev->table) < 0)
425 			return -ENOMEM;
426 	}
427 	if (! dev->idx_table) {
428 		dev->idx_table = kmalloc_array(VIA_TABLE_SIZE,
429 					       sizeof(*dev->idx_table),
430 					       GFP_KERNEL);
431 		if (! dev->idx_table)
432 			return -ENOMEM;
433 	}
434 
435 	/* fill the entries */
436 	idx = 0;
437 	ofs = 0;
438 	for (i = 0; i < periods; i++) {
439 		rest = fragsize;
440 		/* fill descriptors for a period.
441 		 * a period can be split to several descriptors if it's
442 		 * over page boundary.
443 		 */
444 		do {
445 			unsigned int r;
446 			unsigned int flag;
447 			unsigned int addr;
448 
449 			if (idx >= VIA_TABLE_SIZE) {
450 				dev_err(&pci->dev, "too much table size!\n");
451 				return -EINVAL;
452 			}
453 			addr = snd_pcm_sgbuf_get_addr(substream, ofs);
454 			((u32 *)dev->table.area)[idx << 1] = cpu_to_le32(addr);
455 			r = snd_pcm_sgbuf_get_chunk_size(substream, ofs, rest);
456 			rest -= r;
457 			if (! rest) {
458 				if (i == periods - 1)
459 					flag = VIA_TBL_BIT_EOL; /* buffer boundary */
460 				else
461 					flag = VIA_TBL_BIT_FLAG; /* period boundary */
462 			} else
463 				flag = 0; /* period continues to the next */
464 			/*
465 			dev_dbg(&pci->dev,
466 				"tbl %d: at %d  size %d (rest %d)\n",
467 				idx, ofs, r, rest);
468 			*/
469 			((u32 *)dev->table.area)[(idx<<1) + 1] = cpu_to_le32(r | flag);
470 			dev->idx_table[idx].offset = ofs;
471 			dev->idx_table[idx].size = r;
472 			ofs += r;
473 			idx++;
474 		} while (rest > 0);
475 	}
476 	dev->tbl_entries = idx;
477 	dev->bufsize = periods * fragsize;
478 	dev->bufsize2 = dev->bufsize / 2;
479 	dev->fragsize = fragsize;
480 	return 0;
481 }
482 
483 
clean_via_table(struct viadev * dev,struct snd_pcm_substream * substream,struct pci_dev * pci)484 static int clean_via_table(struct viadev *dev, struct snd_pcm_substream *substream,
485 			   struct pci_dev *pci)
486 {
487 	if (dev->table.area) {
488 		snd_dma_free_pages(&dev->table);
489 		dev->table.area = NULL;
490 	}
491 	kfree(dev->idx_table);
492 	dev->idx_table = NULL;
493 	return 0;
494 }
495 
496 /*
497  *  Basic I/O
498  */
499 
snd_via82xx_codec_xread(struct via82xx * chip)500 static inline unsigned int snd_via82xx_codec_xread(struct via82xx *chip)
501 {
502 	return inl(VIAREG(chip, AC97));
503 }
504 
snd_via82xx_codec_xwrite(struct via82xx * chip,unsigned int val)505 static inline void snd_via82xx_codec_xwrite(struct via82xx *chip, unsigned int val)
506 {
507 	outl(val, VIAREG(chip, AC97));
508 }
509 
snd_via82xx_codec_ready(struct via82xx * chip,int secondary)510 static int snd_via82xx_codec_ready(struct via82xx *chip, int secondary)
511 {
512 	unsigned int timeout = 1000;	/* 1ms */
513 	unsigned int val;
514 
515 	while (timeout-- > 0) {
516 		udelay(1);
517 		if (!((val = snd_via82xx_codec_xread(chip)) & VIA_REG_AC97_BUSY))
518 			return val & 0xffff;
519 	}
520 	dev_err(chip->card->dev, "codec_ready: codec %i is not ready [0x%x]\n",
521 		   secondary, snd_via82xx_codec_xread(chip));
522 	return -EIO;
523 }
524 
snd_via82xx_codec_valid(struct via82xx * chip,int secondary)525 static int snd_via82xx_codec_valid(struct via82xx *chip, int secondary)
526 {
527 	unsigned int timeout = 1000;	/* 1ms */
528 	unsigned int val, val1;
529 	unsigned int stat = !secondary ? VIA_REG_AC97_PRIMARY_VALID :
530 					 VIA_REG_AC97_SECONDARY_VALID;
531 
532 	while (timeout-- > 0) {
533 		val = snd_via82xx_codec_xread(chip);
534 		val1 = val & (VIA_REG_AC97_BUSY | stat);
535 		if (val1 == stat)
536 			return val & 0xffff;
537 		udelay(1);
538 	}
539 	return -EIO;
540 }
541 
snd_via82xx_codec_wait(struct snd_ac97 * ac97)542 static void snd_via82xx_codec_wait(struct snd_ac97 *ac97)
543 {
544 	struct via82xx *chip = ac97->private_data;
545 	int err;
546 	err = snd_via82xx_codec_ready(chip, ac97->num);
547 	/* here we need to wait fairly for long time.. */
548 	if (!nodelay)
549 		msleep(500);
550 }
551 
snd_via82xx_codec_write(struct snd_ac97 * ac97,unsigned short reg,unsigned short val)552 static void snd_via82xx_codec_write(struct snd_ac97 *ac97,
553 				    unsigned short reg,
554 				    unsigned short val)
555 {
556 	struct via82xx *chip = ac97->private_data;
557 	unsigned int xval;
558 
559 	xval = !ac97->num ? VIA_REG_AC97_CODEC_ID_PRIMARY : VIA_REG_AC97_CODEC_ID_SECONDARY;
560 	xval <<= VIA_REG_AC97_CODEC_ID_SHIFT;
561 	xval |= reg << VIA_REG_AC97_CMD_SHIFT;
562 	xval |= val << VIA_REG_AC97_DATA_SHIFT;
563 	snd_via82xx_codec_xwrite(chip, xval);
564 	snd_via82xx_codec_ready(chip, ac97->num);
565 }
566 
snd_via82xx_codec_read(struct snd_ac97 * ac97,unsigned short reg)567 static unsigned short snd_via82xx_codec_read(struct snd_ac97 *ac97, unsigned short reg)
568 {
569 	struct via82xx *chip = ac97->private_data;
570 	unsigned int xval, val = 0xffff;
571 	int again = 0;
572 
573 	xval = ac97->num << VIA_REG_AC97_CODEC_ID_SHIFT;
574 	xval |= ac97->num ? VIA_REG_AC97_SECONDARY_VALID : VIA_REG_AC97_PRIMARY_VALID;
575 	xval |= VIA_REG_AC97_READ;
576 	xval |= (reg & 0x7f) << VIA_REG_AC97_CMD_SHIFT;
577       	while (1) {
578       		if (again++ > 3) {
579 			dev_err(chip->card->dev,
580 				"codec_read: codec %i is not valid [0x%x]\n",
581 				   ac97->num, snd_via82xx_codec_xread(chip));
582 		      	return 0xffff;
583 		}
584 		snd_via82xx_codec_xwrite(chip, xval);
585 		udelay (20);
586 		if (snd_via82xx_codec_valid(chip, ac97->num) >= 0) {
587 			udelay(25);
588 			val = snd_via82xx_codec_xread(chip);
589 			break;
590 		}
591 	}
592 	return val & 0xffff;
593 }
594 
snd_via82xx_channel_reset(struct via82xx * chip,struct viadev * viadev)595 static void snd_via82xx_channel_reset(struct via82xx *chip, struct viadev *viadev)
596 {
597 	outb(VIA_REG_CTRL_PAUSE | VIA_REG_CTRL_TERMINATE | VIA_REG_CTRL_RESET,
598 	     VIADEV_REG(viadev, OFFSET_CONTROL));
599 	inb(VIADEV_REG(viadev, OFFSET_CONTROL));
600 	udelay(50);
601 	/* disable interrupts */
602 	outb(0x00, VIADEV_REG(viadev, OFFSET_CONTROL));
603 	/* clear interrupts */
604 	outb(0x03, VIADEV_REG(viadev, OFFSET_STATUS));
605 	outb(0x00, VIADEV_REG(viadev, OFFSET_TYPE)); /* for via686 */
606 	// outl(0, VIADEV_REG(viadev, OFFSET_CURR_PTR));
607 	viadev->lastpos = 0;
608 	viadev->hwptr_done = 0;
609 }
610 
611 
612 /*
613  *  Interrupt handler
614  *  Used for 686 and 8233A
615  */
snd_via686_interrupt(int irq,void * dev_id)616 static irqreturn_t snd_via686_interrupt(int irq, void *dev_id)
617 {
618 	struct via82xx *chip = dev_id;
619 	unsigned int status;
620 	unsigned int i;
621 
622 	status = inl(VIAREG(chip, SGD_SHADOW));
623 	if (! (status & chip->intr_mask)) {
624 		if (chip->rmidi)
625 			/* check mpu401 interrupt */
626 			return snd_mpu401_uart_interrupt(irq, chip->rmidi->private_data);
627 		return IRQ_NONE;
628 	}
629 
630 	/* check status for each stream */
631 	spin_lock(&chip->reg_lock);
632 	for (i = 0; i < chip->num_devs; i++) {
633 		struct viadev *viadev = &chip->devs[i];
634 		unsigned char c_status = inb(VIADEV_REG(viadev, OFFSET_STATUS));
635 		if (! (c_status & (VIA_REG_STAT_EOL|VIA_REG_STAT_FLAG|VIA_REG_STAT_STOPPED)))
636 			continue;
637 		if (viadev->substream && viadev->running) {
638 			/*
639 			 * Update hwptr_done based on 'period elapsed'
640 			 * interrupts. We'll use it, when the chip returns 0
641 			 * for OFFSET_CURR_COUNT.
642 			 */
643 			if (c_status & VIA_REG_STAT_EOL)
644 				viadev->hwptr_done = 0;
645 			else
646 				viadev->hwptr_done += viadev->fragsize;
647 			viadev->in_interrupt = c_status;
648 			spin_unlock(&chip->reg_lock);
649 			snd_pcm_period_elapsed(viadev->substream);
650 			spin_lock(&chip->reg_lock);
651 			viadev->in_interrupt = 0;
652 		}
653 		outb(c_status, VIADEV_REG(viadev, OFFSET_STATUS)); /* ack */
654 	}
655 	spin_unlock(&chip->reg_lock);
656 	return IRQ_HANDLED;
657 }
658 
659 /*
660  *  Interrupt handler
661  */
snd_via8233_interrupt(int irq,void * dev_id)662 static irqreturn_t snd_via8233_interrupt(int irq, void *dev_id)
663 {
664 	struct via82xx *chip = dev_id;
665 	unsigned int status;
666 	unsigned int i;
667 	int irqreturn = 0;
668 
669 	/* check status for each stream */
670 	spin_lock(&chip->reg_lock);
671 	status = inl(VIAREG(chip, SGD_SHADOW));
672 
673 	for (i = 0; i < chip->num_devs; i++) {
674 		struct viadev *viadev = &chip->devs[i];
675 		struct snd_pcm_substream *substream;
676 		unsigned char c_status, shadow_status;
677 
678 		shadow_status = (status >> viadev->shadow_shift) &
679 			(VIA8233_SHADOW_STAT_ACTIVE|VIA_REG_STAT_EOL|
680 			 VIA_REG_STAT_FLAG);
681 		c_status = shadow_status & (VIA_REG_STAT_EOL|VIA_REG_STAT_FLAG);
682 		if (!c_status)
683 			continue;
684 
685 		substream = viadev->substream;
686 		if (substream && viadev->running) {
687 			/*
688 			 * Update hwptr_done based on 'period elapsed'
689 			 * interrupts. We'll use it, when the chip returns 0
690 			 * for OFFSET_CURR_COUNT.
691 			 */
692 			if (c_status & VIA_REG_STAT_EOL)
693 				viadev->hwptr_done = 0;
694 			else
695 				viadev->hwptr_done += viadev->fragsize;
696 			viadev->in_interrupt = c_status;
697 			if (shadow_status & VIA8233_SHADOW_STAT_ACTIVE)
698 				viadev->in_interrupt |= VIA_REG_STAT_ACTIVE;
699 			spin_unlock(&chip->reg_lock);
700 
701 			snd_pcm_period_elapsed(substream);
702 
703 			spin_lock(&chip->reg_lock);
704 			viadev->in_interrupt = 0;
705 		}
706 		outb(c_status, VIADEV_REG(viadev, OFFSET_STATUS)); /* ack */
707 		irqreturn = 1;
708 	}
709 	spin_unlock(&chip->reg_lock);
710 	return IRQ_RETVAL(irqreturn);
711 }
712 
713 /*
714  *  PCM callbacks
715  */
716 
717 /*
718  * trigger callback
719  */
snd_via82xx_pcm_trigger(struct snd_pcm_substream * substream,int cmd)720 static int snd_via82xx_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
721 {
722 	struct via82xx *chip = snd_pcm_substream_chip(substream);
723 	struct viadev *viadev = substream->runtime->private_data;
724 	unsigned char val;
725 
726 	if (chip->chip_type != TYPE_VIA686)
727 		val = VIA_REG_CTRL_INT;
728 	else
729 		val = 0;
730 	switch (cmd) {
731 	case SNDRV_PCM_TRIGGER_START:
732 	case SNDRV_PCM_TRIGGER_RESUME:
733 		val |= VIA_REG_CTRL_START;
734 		viadev->running = 1;
735 		break;
736 	case SNDRV_PCM_TRIGGER_STOP:
737 	case SNDRV_PCM_TRIGGER_SUSPEND:
738 		val = VIA_REG_CTRL_TERMINATE;
739 		viadev->running = 0;
740 		break;
741 	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
742 		val |= VIA_REG_CTRL_PAUSE;
743 		viadev->running = 0;
744 		break;
745 	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
746 		viadev->running = 1;
747 		break;
748 	default:
749 		return -EINVAL;
750 	}
751 	outb(val, VIADEV_REG(viadev, OFFSET_CONTROL));
752 	if (cmd == SNDRV_PCM_TRIGGER_STOP)
753 		snd_via82xx_channel_reset(chip, viadev);
754 	return 0;
755 }
756 
757 
758 /*
759  * pointer callbacks
760  */
761 
762 /*
763  * calculate the linear position at the given sg-buffer index and the rest count
764  */
765 
766 #define check_invalid_pos(viadev,pos) \
767 	((pos) < viadev->lastpos && ((pos) >= viadev->bufsize2 ||\
768 				     viadev->lastpos < viadev->bufsize2))
769 
calc_linear_pos(struct via82xx * chip,struct viadev * viadev,unsigned int idx,unsigned int count)770 static inline unsigned int calc_linear_pos(struct via82xx *chip,
771 					   struct viadev *viadev,
772 					   unsigned int idx,
773 					   unsigned int count)
774 {
775 	unsigned int size, base, res;
776 
777 	size = viadev->idx_table[idx].size;
778 	base = viadev->idx_table[idx].offset;
779 	res = base + size - count;
780 	if (res >= viadev->bufsize)
781 		res -= viadev->bufsize;
782 
783 	/* check the validity of the calculated position */
784 	if (size < count) {
785 		dev_dbg(chip->card->dev,
786 			"invalid via82xx_cur_ptr (size = %d, count = %d)\n",
787 			   (int)size, (int)count);
788 		res = viadev->lastpos;
789 	} else {
790 		if (! count) {
791 			/* Some mobos report count = 0 on the DMA boundary,
792 			 * i.e. count = size indeed.
793 			 * Let's check whether this step is above the expected size.
794 			 */
795 			int delta = res - viadev->lastpos;
796 			if (delta < 0)
797 				delta += viadev->bufsize;
798 			if ((unsigned int)delta > viadev->fragsize)
799 				res = base;
800 		}
801 		if (check_invalid_pos(viadev, res)) {
802 #ifdef POINTER_DEBUG
803 			dev_dbg(chip->card->dev,
804 				"fail: idx = %i/%i, lastpos = 0x%x, bufsize2 = 0x%x, offsize = 0x%x, size = 0x%x, count = 0x%x\n",
805 				idx, viadev->tbl_entries,
806 			       viadev->lastpos, viadev->bufsize2,
807 			       viadev->idx_table[idx].offset,
808 			       viadev->idx_table[idx].size, count);
809 #endif
810 			/* count register returns full size when end of buffer is reached */
811 			res = base + size;
812 			if (check_invalid_pos(viadev, res)) {
813 				dev_dbg(chip->card->dev,
814 					"invalid via82xx_cur_ptr (2), using last valid pointer\n");
815 				res = viadev->lastpos;
816 			}
817 		}
818 	}
819 	return res;
820 }
821 
822 /*
823  * get the current pointer on via686
824  */
snd_via686_pcm_pointer(struct snd_pcm_substream * substream)825 static snd_pcm_uframes_t snd_via686_pcm_pointer(struct snd_pcm_substream *substream)
826 {
827 	struct via82xx *chip = snd_pcm_substream_chip(substream);
828 	struct viadev *viadev = substream->runtime->private_data;
829 	unsigned int idx, ptr, count, res;
830 
831 	if (snd_BUG_ON(!viadev->tbl_entries))
832 		return 0;
833 	if (!(inb(VIADEV_REG(viadev, OFFSET_STATUS)) & VIA_REG_STAT_ACTIVE))
834 		return 0;
835 
836 	spin_lock(&chip->reg_lock);
837 	count = inl(VIADEV_REG(viadev, OFFSET_CURR_COUNT)) & 0xffffff;
838 	/* The via686a does not have the current index register,
839 	 * so we need to calculate the index from CURR_PTR.
840 	 */
841 	ptr = inl(VIADEV_REG(viadev, OFFSET_CURR_PTR));
842 	if (ptr <= (unsigned int)viadev->table.addr)
843 		idx = 0;
844 	else /* CURR_PTR holds the address + 8 */
845 		idx = ((ptr - (unsigned int)viadev->table.addr) / 8 - 1) % viadev->tbl_entries;
846 	res = calc_linear_pos(chip, viadev, idx, count);
847 	viadev->lastpos = res; /* remember the last position */
848 	spin_unlock(&chip->reg_lock);
849 
850 	return bytes_to_frames(substream->runtime, res);
851 }
852 
853 /*
854  * get the current pointer on via823x
855  */
snd_via8233_pcm_pointer(struct snd_pcm_substream * substream)856 static snd_pcm_uframes_t snd_via8233_pcm_pointer(struct snd_pcm_substream *substream)
857 {
858 	struct via82xx *chip = snd_pcm_substream_chip(substream);
859 	struct viadev *viadev = substream->runtime->private_data;
860 	unsigned int idx, count, res;
861 	int status;
862 
863 	if (snd_BUG_ON(!viadev->tbl_entries))
864 		return 0;
865 
866 	spin_lock(&chip->reg_lock);
867 	count = inl(VIADEV_REG(viadev, OFFSET_CURR_COUNT));
868 	status = viadev->in_interrupt;
869 	if (!status)
870 		status = inb(VIADEV_REG(viadev, OFFSET_STATUS));
871 
872 	/* An apparent bug in the 8251 is worked around by sending a
873 	 * REG_CTRL_START. */
874 	if (chip->revision == VIA_REV_8251 && (status & VIA_REG_STAT_EOL))
875 		snd_via82xx_pcm_trigger(substream, SNDRV_PCM_TRIGGER_START);
876 
877 	if (!(status & VIA_REG_STAT_ACTIVE)) {
878 		res = 0;
879 		goto unlock;
880 	}
881 	if (count & 0xffffff) {
882 		idx = count >> 24;
883 		if (idx >= viadev->tbl_entries) {
884 #ifdef POINTER_DEBUG
885 			dev_dbg(chip->card->dev,
886 				"fail: invalid idx = %i/%i\n", idx,
887 			       viadev->tbl_entries);
888 #endif
889 			res = viadev->lastpos;
890 		} else {
891 			count &= 0xffffff;
892 			res = calc_linear_pos(chip, viadev, idx, count);
893 		}
894 	} else {
895 		res = viadev->hwptr_done;
896 		if (!viadev->in_interrupt) {
897 			if (status & VIA_REG_STAT_EOL) {
898 				res = 0;
899 			} else
900 				if (status & VIA_REG_STAT_FLAG) {
901 					res += viadev->fragsize;
902 				}
903 		}
904 	}
905 unlock:
906 	viadev->lastpos = res;
907 	spin_unlock(&chip->reg_lock);
908 
909 	return bytes_to_frames(substream->runtime, res);
910 }
911 
912 
913 /*
914  * hw_params callback:
915  * allocate the buffer and build up the buffer description table
916  */
snd_via82xx_hw_params(struct snd_pcm_substream * substream,struct snd_pcm_hw_params * hw_params)917 static int snd_via82xx_hw_params(struct snd_pcm_substream *substream,
918 				 struct snd_pcm_hw_params *hw_params)
919 {
920 	struct via82xx *chip = snd_pcm_substream_chip(substream);
921 	struct viadev *viadev = substream->runtime->private_data;
922 	int err;
923 
924 	err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
925 	if (err < 0)
926 		return err;
927 	err = build_via_table(viadev, substream, chip->pci,
928 			      params_periods(hw_params),
929 			      params_period_bytes(hw_params));
930 	if (err < 0)
931 		return err;
932 
933 	return 0;
934 }
935 
936 /*
937  * hw_free callback:
938  * clean up the buffer description table and release the buffer
939  */
snd_via82xx_hw_free(struct snd_pcm_substream * substream)940 static int snd_via82xx_hw_free(struct snd_pcm_substream *substream)
941 {
942 	struct via82xx *chip = snd_pcm_substream_chip(substream);
943 	struct viadev *viadev = substream->runtime->private_data;
944 
945 	clean_via_table(viadev, substream, chip->pci);
946 	snd_pcm_lib_free_pages(substream);
947 	return 0;
948 }
949 
950 
951 /*
952  * set up the table pointer
953  */
snd_via82xx_set_table_ptr(struct via82xx * chip,struct viadev * viadev)954 static void snd_via82xx_set_table_ptr(struct via82xx *chip, struct viadev *viadev)
955 {
956 	snd_via82xx_codec_ready(chip, 0);
957 	outl((u32)viadev->table.addr, VIADEV_REG(viadev, OFFSET_TABLE_PTR));
958 	udelay(20);
959 	snd_via82xx_codec_ready(chip, 0);
960 }
961 
962 /*
963  * prepare callback for playback and capture on via686
964  */
via686_setup_format(struct via82xx * chip,struct viadev * viadev,struct snd_pcm_runtime * runtime)965 static void via686_setup_format(struct via82xx *chip, struct viadev *viadev,
966 				struct snd_pcm_runtime *runtime)
967 {
968 	snd_via82xx_channel_reset(chip, viadev);
969 	/* this must be set after channel_reset */
970 	snd_via82xx_set_table_ptr(chip, viadev);
971 	outb(VIA_REG_TYPE_AUTOSTART |
972 	     (runtime->format == SNDRV_PCM_FORMAT_S16_LE ? VIA_REG_TYPE_16BIT : 0) |
973 	     (runtime->channels > 1 ? VIA_REG_TYPE_STEREO : 0) |
974 	     ((viadev->reg_offset & 0x10) == 0 ? VIA_REG_TYPE_INT_LSAMPLE : 0) |
975 	     VIA_REG_TYPE_INT_EOL |
976 	     VIA_REG_TYPE_INT_FLAG, VIADEV_REG(viadev, OFFSET_TYPE));
977 }
978 
snd_via686_playback_prepare(struct snd_pcm_substream * substream)979 static int snd_via686_playback_prepare(struct snd_pcm_substream *substream)
980 {
981 	struct via82xx *chip = snd_pcm_substream_chip(substream);
982 	struct viadev *viadev = substream->runtime->private_data;
983 	struct snd_pcm_runtime *runtime = substream->runtime;
984 
985 	snd_ac97_set_rate(chip->ac97, AC97_PCM_FRONT_DAC_RATE, runtime->rate);
986 	snd_ac97_set_rate(chip->ac97, AC97_SPDIF, runtime->rate);
987 	via686_setup_format(chip, viadev, runtime);
988 	return 0;
989 }
990 
snd_via686_capture_prepare(struct snd_pcm_substream * substream)991 static int snd_via686_capture_prepare(struct snd_pcm_substream *substream)
992 {
993 	struct via82xx *chip = snd_pcm_substream_chip(substream);
994 	struct viadev *viadev = substream->runtime->private_data;
995 	struct snd_pcm_runtime *runtime = substream->runtime;
996 
997 	snd_ac97_set_rate(chip->ac97, AC97_PCM_LR_ADC_RATE, runtime->rate);
998 	via686_setup_format(chip, viadev, runtime);
999 	return 0;
1000 }
1001 
1002 /*
1003  * lock the current rate
1004  */
via_lock_rate(struct via_rate_lock * rec,int rate)1005 static int via_lock_rate(struct via_rate_lock *rec, int rate)
1006 {
1007 	int changed = 0;
1008 
1009 	spin_lock_irq(&rec->lock);
1010 	if (rec->rate != rate) {
1011 		if (rec->rate && rec->used > 1) /* already set */
1012 			changed = -EINVAL;
1013 		else {
1014 			rec->rate = rate;
1015 			changed = 1;
1016 		}
1017 	}
1018 	spin_unlock_irq(&rec->lock);
1019 	return changed;
1020 }
1021 
1022 /*
1023  * prepare callback for DSX playback on via823x
1024  */
snd_via8233_playback_prepare(struct snd_pcm_substream * substream)1025 static int snd_via8233_playback_prepare(struct snd_pcm_substream *substream)
1026 {
1027 	struct via82xx *chip = snd_pcm_substream_chip(substream);
1028 	struct viadev *viadev = substream->runtime->private_data;
1029 	struct snd_pcm_runtime *runtime = substream->runtime;
1030 	int ac97_rate = chip->dxs_src ? 48000 : runtime->rate;
1031 	int rate_changed;
1032 	u32 rbits;
1033 
1034 	if ((rate_changed = via_lock_rate(&chip->rates[0], ac97_rate)) < 0)
1035 		return rate_changed;
1036 	if (rate_changed)
1037 		snd_ac97_set_rate(chip->ac97, AC97_PCM_FRONT_DAC_RATE,
1038 				  chip->no_vra ? 48000 : runtime->rate);
1039 	if (chip->spdif_on && viadev->reg_offset == 0x30)
1040 		snd_ac97_set_rate(chip->ac97, AC97_SPDIF, runtime->rate);
1041 
1042 	if (runtime->rate == 48000)
1043 		rbits = 0xfffff;
1044 	else
1045 		rbits = (0x100000 / 48000) * runtime->rate +
1046 			((0x100000 % 48000) * runtime->rate) / 48000;
1047 	snd_BUG_ON(rbits & ~0xfffff);
1048 	snd_via82xx_channel_reset(chip, viadev);
1049 	snd_via82xx_set_table_ptr(chip, viadev);
1050 	outb(chip->playback_volume[viadev->reg_offset / 0x10][0],
1051 	     VIADEV_REG(viadev, OFS_PLAYBACK_VOLUME_L));
1052 	outb(chip->playback_volume[viadev->reg_offset / 0x10][1],
1053 	     VIADEV_REG(viadev, OFS_PLAYBACK_VOLUME_R));
1054 	outl((runtime->format == SNDRV_PCM_FORMAT_S16_LE ? VIA8233_REG_TYPE_16BIT : 0) | /* format */
1055 	     (runtime->channels > 1 ? VIA8233_REG_TYPE_STEREO : 0) | /* stereo */
1056 	     rbits | /* rate */
1057 	     0xff000000,    /* STOP index is never reached */
1058 	     VIADEV_REG(viadev, OFFSET_STOP_IDX));
1059 	udelay(20);
1060 	snd_via82xx_codec_ready(chip, 0);
1061 	return 0;
1062 }
1063 
1064 /*
1065  * prepare callback for multi-channel playback on via823x
1066  */
snd_via8233_multi_prepare(struct snd_pcm_substream * substream)1067 static int snd_via8233_multi_prepare(struct snd_pcm_substream *substream)
1068 {
1069 	struct via82xx *chip = snd_pcm_substream_chip(substream);
1070 	struct viadev *viadev = substream->runtime->private_data;
1071 	struct snd_pcm_runtime *runtime = substream->runtime;
1072 	unsigned int slots;
1073 	int fmt;
1074 
1075 	if (via_lock_rate(&chip->rates[0], runtime->rate) < 0)
1076 		return -EINVAL;
1077 	snd_ac97_set_rate(chip->ac97, AC97_PCM_FRONT_DAC_RATE, runtime->rate);
1078 	snd_ac97_set_rate(chip->ac97, AC97_PCM_SURR_DAC_RATE, runtime->rate);
1079 	snd_ac97_set_rate(chip->ac97, AC97_PCM_LFE_DAC_RATE, runtime->rate);
1080 	snd_ac97_set_rate(chip->ac97, AC97_SPDIF, runtime->rate);
1081 	snd_via82xx_channel_reset(chip, viadev);
1082 	snd_via82xx_set_table_ptr(chip, viadev);
1083 
1084 	fmt = (runtime->format == SNDRV_PCM_FORMAT_S16_LE) ?
1085 		VIA_REG_MULTPLAY_FMT_16BIT : VIA_REG_MULTPLAY_FMT_8BIT;
1086 	fmt |= runtime->channels << 4;
1087 	outb(fmt, VIADEV_REG(viadev, OFS_MULTPLAY_FORMAT));
1088 #if 0
1089 	if (chip->revision == VIA_REV_8233A)
1090 		slots = 0;
1091 	else
1092 #endif
1093 	{
1094 		/* set sample number to slot 3, 4, 7, 8, 6, 9 (for VIA8233/C,8235) */
1095 		/* corresponding to FL, FR, RL, RR, C, LFE ?? */
1096 		switch (runtime->channels) {
1097 		case 1: slots = (1<<0) | (1<<4); break;
1098 		case 2: slots = (1<<0) | (2<<4); break;
1099 		case 3: slots = (1<<0) | (2<<4) | (5<<8); break;
1100 		case 4: slots = (1<<0) | (2<<4) | (3<<8) | (4<<12); break;
1101 		case 5: slots = (1<<0) | (2<<4) | (3<<8) | (4<<12) | (5<<16); break;
1102 		case 6: slots = (1<<0) | (2<<4) | (3<<8) | (4<<12) | (5<<16) | (6<<20); break;
1103 		default: slots = 0; break;
1104 		}
1105 	}
1106 	/* STOP index is never reached */
1107 	outl(0xff000000 | slots, VIADEV_REG(viadev, OFFSET_STOP_IDX));
1108 	udelay(20);
1109 	snd_via82xx_codec_ready(chip, 0);
1110 	return 0;
1111 }
1112 
1113 /*
1114  * prepare callback for capture on via823x
1115  */
snd_via8233_capture_prepare(struct snd_pcm_substream * substream)1116 static int snd_via8233_capture_prepare(struct snd_pcm_substream *substream)
1117 {
1118 	struct via82xx *chip = snd_pcm_substream_chip(substream);
1119 	struct viadev *viadev = substream->runtime->private_data;
1120 	struct snd_pcm_runtime *runtime = substream->runtime;
1121 
1122 	if (via_lock_rate(&chip->rates[1], runtime->rate) < 0)
1123 		return -EINVAL;
1124 	snd_ac97_set_rate(chip->ac97, AC97_PCM_LR_ADC_RATE, runtime->rate);
1125 	snd_via82xx_channel_reset(chip, viadev);
1126 	snd_via82xx_set_table_ptr(chip, viadev);
1127 	outb(VIA_REG_CAPTURE_FIFO_ENABLE, VIADEV_REG(viadev, OFS_CAPTURE_FIFO));
1128 	outl((runtime->format == SNDRV_PCM_FORMAT_S16_LE ? VIA8233_REG_TYPE_16BIT : 0) |
1129 	     (runtime->channels > 1 ? VIA8233_REG_TYPE_STEREO : 0) |
1130 	     0xff000000,    /* STOP index is never reached */
1131 	     VIADEV_REG(viadev, OFFSET_STOP_IDX));
1132 	udelay(20);
1133 	snd_via82xx_codec_ready(chip, 0);
1134 	return 0;
1135 }
1136 
1137 
1138 /*
1139  * pcm hardware definition, identical for both playback and capture
1140  */
1141 static const struct snd_pcm_hardware snd_via82xx_hw =
1142 {
1143 	.info =			(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1144 				 SNDRV_PCM_INFO_BLOCK_TRANSFER |
1145 				 SNDRV_PCM_INFO_MMAP_VALID |
1146 				 /* SNDRV_PCM_INFO_RESUME | */
1147 				 SNDRV_PCM_INFO_PAUSE),
1148 	.formats =		SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
1149 	.rates =		SNDRV_PCM_RATE_48000,
1150 	.rate_min =		48000,
1151 	.rate_max =		48000,
1152 	.channels_min =		1,
1153 	.channels_max =		2,
1154 	.buffer_bytes_max =	VIA_MAX_BUFSIZE,
1155 	.period_bytes_min =	32,
1156 	.period_bytes_max =	VIA_MAX_BUFSIZE / 2,
1157 	.periods_min =		2,
1158 	.periods_max =		VIA_TABLE_SIZE / 2,
1159 	.fifo_size =		0,
1160 };
1161 
1162 
1163 /*
1164  * open callback skeleton
1165  */
snd_via82xx_pcm_open(struct via82xx * chip,struct viadev * viadev,struct snd_pcm_substream * substream)1166 static int snd_via82xx_pcm_open(struct via82xx *chip, struct viadev *viadev,
1167 				struct snd_pcm_substream *substream)
1168 {
1169 	struct snd_pcm_runtime *runtime = substream->runtime;
1170 	int err;
1171 	struct via_rate_lock *ratep;
1172 	bool use_src = false;
1173 
1174 	runtime->hw = snd_via82xx_hw;
1175 
1176 	/* set the hw rate condition */
1177 	ratep = &chip->rates[viadev->direction];
1178 	spin_lock_irq(&ratep->lock);
1179 	ratep->used++;
1180 	if (chip->spdif_on && viadev->reg_offset == 0x30) {
1181 		/* DXS#3 and spdif is on */
1182 		runtime->hw.rates = chip->ac97->rates[AC97_RATES_SPDIF];
1183 		snd_pcm_limit_hw_rates(runtime);
1184 	} else if (chip->dxs_fixed && viadev->reg_offset < 0x40) {
1185 		/* fixed DXS playback rate */
1186 		runtime->hw.rates = SNDRV_PCM_RATE_48000;
1187 		runtime->hw.rate_min = runtime->hw.rate_max = 48000;
1188 	} else if (chip->dxs_src && viadev->reg_offset < 0x40) {
1189 		/* use full SRC capabilities of DXS */
1190 		runtime->hw.rates = (SNDRV_PCM_RATE_CONTINUOUS |
1191 				     SNDRV_PCM_RATE_8000_48000);
1192 		runtime->hw.rate_min = 8000;
1193 		runtime->hw.rate_max = 48000;
1194 		use_src = true;
1195 	} else if (! ratep->rate) {
1196 		int idx = viadev->direction ? AC97_RATES_ADC : AC97_RATES_FRONT_DAC;
1197 		runtime->hw.rates = chip->ac97->rates[idx];
1198 		snd_pcm_limit_hw_rates(runtime);
1199 	} else {
1200 		/* a fixed rate */
1201 		runtime->hw.rates = SNDRV_PCM_RATE_KNOT;
1202 		runtime->hw.rate_max = runtime->hw.rate_min = ratep->rate;
1203 	}
1204 	spin_unlock_irq(&ratep->lock);
1205 
1206 	/* we may remove following constaint when we modify table entries
1207 	   in interrupt */
1208 	if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
1209 		return err;
1210 
1211 	if (use_src) {
1212 		err = snd_pcm_hw_rule_noresample(runtime, 48000);
1213 		if (err < 0)
1214 			return err;
1215 	}
1216 
1217 	runtime->private_data = viadev;
1218 	viadev->substream = substream;
1219 
1220 	return 0;
1221 }
1222 
1223 
1224 /*
1225  * open callback for playback on via686
1226  */
snd_via686_playback_open(struct snd_pcm_substream * substream)1227 static int snd_via686_playback_open(struct snd_pcm_substream *substream)
1228 {
1229 	struct via82xx *chip = snd_pcm_substream_chip(substream);
1230 	struct viadev *viadev = &chip->devs[chip->playback_devno + substream->number];
1231 	int err;
1232 
1233 	if ((err = snd_via82xx_pcm_open(chip, viadev, substream)) < 0)
1234 		return err;
1235 	return 0;
1236 }
1237 
1238 /*
1239  * open callback for playback on via823x DXS
1240  */
snd_via8233_playback_open(struct snd_pcm_substream * substream)1241 static int snd_via8233_playback_open(struct snd_pcm_substream *substream)
1242 {
1243 	struct via82xx *chip = snd_pcm_substream_chip(substream);
1244 	struct viadev *viadev;
1245 	unsigned int stream;
1246 	int err;
1247 
1248 	viadev = &chip->devs[chip->playback_devno + substream->number];
1249 	if ((err = snd_via82xx_pcm_open(chip, viadev, substream)) < 0)
1250 		return err;
1251 	stream = viadev->reg_offset / 0x10;
1252 	if (chip->dxs_controls[stream]) {
1253 		chip->playback_volume[stream][0] =
1254 				VIA_DXS_MAX_VOLUME - (dxs_init_volume & 31);
1255 		chip->playback_volume[stream][1] =
1256 				VIA_DXS_MAX_VOLUME - (dxs_init_volume & 31);
1257 		chip->dxs_controls[stream]->vd[0].access &=
1258 			~SNDRV_CTL_ELEM_ACCESS_INACTIVE;
1259 		snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE |
1260 			       SNDRV_CTL_EVENT_MASK_INFO,
1261 			       &chip->dxs_controls[stream]->id);
1262 	}
1263 	return 0;
1264 }
1265 
1266 /*
1267  * open callback for playback on via823x multi-channel
1268  */
snd_via8233_multi_open(struct snd_pcm_substream * substream)1269 static int snd_via8233_multi_open(struct snd_pcm_substream *substream)
1270 {
1271 	struct via82xx *chip = snd_pcm_substream_chip(substream);
1272 	struct viadev *viadev = &chip->devs[chip->multi_devno];
1273 	int err;
1274 	/* channels constraint for VIA8233A
1275 	 * 3 and 5 channels are not supported
1276 	 */
1277 	static const unsigned int channels[] = {
1278 		1, 2, 4, 6
1279 	};
1280 	static const struct snd_pcm_hw_constraint_list hw_constraints_channels = {
1281 		.count = ARRAY_SIZE(channels),
1282 		.list = channels,
1283 		.mask = 0,
1284 	};
1285 
1286 	if ((err = snd_via82xx_pcm_open(chip, viadev, substream)) < 0)
1287 		return err;
1288 	substream->runtime->hw.channels_max = 6;
1289 	if (chip->revision == VIA_REV_8233A)
1290 		snd_pcm_hw_constraint_list(substream->runtime, 0,
1291 					   SNDRV_PCM_HW_PARAM_CHANNELS,
1292 					   &hw_constraints_channels);
1293 	return 0;
1294 }
1295 
1296 /*
1297  * open callback for capture on via686 and via823x
1298  */
snd_via82xx_capture_open(struct snd_pcm_substream * substream)1299 static int snd_via82xx_capture_open(struct snd_pcm_substream *substream)
1300 {
1301 	struct via82xx *chip = snd_pcm_substream_chip(substream);
1302 	struct viadev *viadev = &chip->devs[chip->capture_devno + substream->pcm->device];
1303 
1304 	return snd_via82xx_pcm_open(chip, viadev, substream);
1305 }
1306 
1307 /*
1308  * close callback
1309  */
snd_via82xx_pcm_close(struct snd_pcm_substream * substream)1310 static int snd_via82xx_pcm_close(struct snd_pcm_substream *substream)
1311 {
1312 	struct via82xx *chip = snd_pcm_substream_chip(substream);
1313 	struct viadev *viadev = substream->runtime->private_data;
1314 	struct via_rate_lock *ratep;
1315 
1316 	/* release the rate lock */
1317 	ratep = &chip->rates[viadev->direction];
1318 	spin_lock_irq(&ratep->lock);
1319 	ratep->used--;
1320 	if (! ratep->used)
1321 		ratep->rate = 0;
1322 	spin_unlock_irq(&ratep->lock);
1323 	if (! ratep->rate) {
1324 		if (! viadev->direction) {
1325 			snd_ac97_update_power(chip->ac97,
1326 					      AC97_PCM_FRONT_DAC_RATE, 0);
1327 			snd_ac97_update_power(chip->ac97,
1328 					      AC97_PCM_SURR_DAC_RATE, 0);
1329 			snd_ac97_update_power(chip->ac97,
1330 					      AC97_PCM_LFE_DAC_RATE, 0);
1331 		} else
1332 			snd_ac97_update_power(chip->ac97,
1333 					      AC97_PCM_LR_ADC_RATE, 0);
1334 	}
1335 	viadev->substream = NULL;
1336 	return 0;
1337 }
1338 
snd_via8233_playback_close(struct snd_pcm_substream * substream)1339 static int snd_via8233_playback_close(struct snd_pcm_substream *substream)
1340 {
1341 	struct via82xx *chip = snd_pcm_substream_chip(substream);
1342 	struct viadev *viadev = substream->runtime->private_data;
1343 	unsigned int stream;
1344 
1345 	stream = viadev->reg_offset / 0x10;
1346 	if (chip->dxs_controls[stream]) {
1347 		chip->dxs_controls[stream]->vd[0].access |=
1348 			SNDRV_CTL_ELEM_ACCESS_INACTIVE;
1349 		snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_INFO,
1350 			       &chip->dxs_controls[stream]->id);
1351 	}
1352 	return snd_via82xx_pcm_close(substream);
1353 }
1354 
1355 
1356 /* via686 playback callbacks */
1357 static const struct snd_pcm_ops snd_via686_playback_ops = {
1358 	.open =		snd_via686_playback_open,
1359 	.close =	snd_via82xx_pcm_close,
1360 	.ioctl =	snd_pcm_lib_ioctl,
1361 	.hw_params =	snd_via82xx_hw_params,
1362 	.hw_free =	snd_via82xx_hw_free,
1363 	.prepare =	snd_via686_playback_prepare,
1364 	.trigger =	snd_via82xx_pcm_trigger,
1365 	.pointer =	snd_via686_pcm_pointer,
1366 	.page =		snd_pcm_sgbuf_ops_page,
1367 };
1368 
1369 /* via686 capture callbacks */
1370 static const struct snd_pcm_ops snd_via686_capture_ops = {
1371 	.open =		snd_via82xx_capture_open,
1372 	.close =	snd_via82xx_pcm_close,
1373 	.ioctl =	snd_pcm_lib_ioctl,
1374 	.hw_params =	snd_via82xx_hw_params,
1375 	.hw_free =	snd_via82xx_hw_free,
1376 	.prepare =	snd_via686_capture_prepare,
1377 	.trigger =	snd_via82xx_pcm_trigger,
1378 	.pointer =	snd_via686_pcm_pointer,
1379 	.page =		snd_pcm_sgbuf_ops_page,
1380 };
1381 
1382 /* via823x DSX playback callbacks */
1383 static const struct snd_pcm_ops snd_via8233_playback_ops = {
1384 	.open =		snd_via8233_playback_open,
1385 	.close =	snd_via8233_playback_close,
1386 	.ioctl =	snd_pcm_lib_ioctl,
1387 	.hw_params =	snd_via82xx_hw_params,
1388 	.hw_free =	snd_via82xx_hw_free,
1389 	.prepare =	snd_via8233_playback_prepare,
1390 	.trigger =	snd_via82xx_pcm_trigger,
1391 	.pointer =	snd_via8233_pcm_pointer,
1392 	.page =		snd_pcm_sgbuf_ops_page,
1393 };
1394 
1395 /* via823x multi-channel playback callbacks */
1396 static const struct snd_pcm_ops snd_via8233_multi_ops = {
1397 	.open =		snd_via8233_multi_open,
1398 	.close =	snd_via82xx_pcm_close,
1399 	.ioctl =	snd_pcm_lib_ioctl,
1400 	.hw_params =	snd_via82xx_hw_params,
1401 	.hw_free =	snd_via82xx_hw_free,
1402 	.prepare =	snd_via8233_multi_prepare,
1403 	.trigger =	snd_via82xx_pcm_trigger,
1404 	.pointer =	snd_via8233_pcm_pointer,
1405 	.page =		snd_pcm_sgbuf_ops_page,
1406 };
1407 
1408 /* via823x capture callbacks */
1409 static const struct snd_pcm_ops snd_via8233_capture_ops = {
1410 	.open =		snd_via82xx_capture_open,
1411 	.close =	snd_via82xx_pcm_close,
1412 	.ioctl =	snd_pcm_lib_ioctl,
1413 	.hw_params =	snd_via82xx_hw_params,
1414 	.hw_free =	snd_via82xx_hw_free,
1415 	.prepare =	snd_via8233_capture_prepare,
1416 	.trigger =	snd_via82xx_pcm_trigger,
1417 	.pointer =	snd_via8233_pcm_pointer,
1418 	.page =		snd_pcm_sgbuf_ops_page,
1419 };
1420 
1421 
init_viadev(struct via82xx * chip,int idx,unsigned int reg_offset,int shadow_pos,int direction)1422 static void init_viadev(struct via82xx *chip, int idx, unsigned int reg_offset,
1423 			int shadow_pos, int direction)
1424 {
1425 	chip->devs[idx].reg_offset = reg_offset;
1426 	chip->devs[idx].shadow_shift = shadow_pos * 4;
1427 	chip->devs[idx].direction = direction;
1428 	chip->devs[idx].port = chip->port + reg_offset;
1429 }
1430 
1431 /*
1432  * create pcm instances for VIA8233, 8233C and 8235 (not 8233A)
1433  */
snd_via8233_pcm_new(struct via82xx * chip)1434 static int snd_via8233_pcm_new(struct via82xx *chip)
1435 {
1436 	struct snd_pcm *pcm;
1437 	struct snd_pcm_chmap *chmap;
1438 	int i, err;
1439 
1440 	chip->playback_devno = 0;	/* x 4 */
1441 	chip->multi_devno = 4;		/* x 1 */
1442 	chip->capture_devno = 5;	/* x 2 */
1443 	chip->num_devs = 7;
1444 	chip->intr_mask = 0x33033333; /* FLAG|EOL for rec0-1, mc, sdx0-3 */
1445 
1446 	/* PCM #0:  4 DSX playbacks and 1 capture */
1447 	err = snd_pcm_new(chip->card, chip->card->shortname, 0, 4, 1, &pcm);
1448 	if (err < 0)
1449 		return err;
1450 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_via8233_playback_ops);
1451 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_via8233_capture_ops);
1452 	pcm->private_data = chip;
1453 	strcpy(pcm->name, chip->card->shortname);
1454 	chip->pcms[0] = pcm;
1455 	/* set up playbacks */
1456 	for (i = 0; i < 4; i++)
1457 		init_viadev(chip, i, 0x10 * i, i, 0);
1458 	/* capture */
1459 	init_viadev(chip, chip->capture_devno, VIA_REG_CAPTURE_8233_STATUS, 6, 1);
1460 
1461 	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
1462 					      snd_dma_pci_data(chip->pci),
1463 					      64*1024, VIA_MAX_BUFSIZE);
1464 
1465 	err = snd_pcm_add_chmap_ctls(pcm, SNDRV_PCM_STREAM_PLAYBACK,
1466 				     snd_pcm_std_chmaps, 2, 0,
1467 				     &chmap);
1468 	if (err < 0)
1469 		return err;
1470 
1471 	/* PCM #1:  multi-channel playback and 2nd capture */
1472 	err = snd_pcm_new(chip->card, chip->card->shortname, 1, 1, 1, &pcm);
1473 	if (err < 0)
1474 		return err;
1475 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_via8233_multi_ops);
1476 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_via8233_capture_ops);
1477 	pcm->private_data = chip;
1478 	strcpy(pcm->name, chip->card->shortname);
1479 	chip->pcms[1] = pcm;
1480 	/* set up playback */
1481 	init_viadev(chip, chip->multi_devno, VIA_REG_MULTPLAY_STATUS, 4, 0);
1482 	/* set up capture */
1483 	init_viadev(chip, chip->capture_devno + 1, VIA_REG_CAPTURE_8233_STATUS + 0x10, 7, 1);
1484 
1485 	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
1486 					      snd_dma_pci_data(chip->pci),
1487 					      64*1024, VIA_MAX_BUFSIZE);
1488 
1489 	err = snd_pcm_add_chmap_ctls(pcm, SNDRV_PCM_STREAM_PLAYBACK,
1490 				     snd_pcm_alt_chmaps, 6, 0,
1491 				     &chmap);
1492 	if (err < 0)
1493 		return err;
1494 	chip->ac97->chmaps[SNDRV_PCM_STREAM_PLAYBACK] = chmap;
1495 
1496 	return 0;
1497 }
1498 
1499 /*
1500  * create pcm instances for VIA8233A
1501  */
snd_via8233a_pcm_new(struct via82xx * chip)1502 static int snd_via8233a_pcm_new(struct via82xx *chip)
1503 {
1504 	struct snd_pcm *pcm;
1505 	struct snd_pcm_chmap *chmap;
1506 	int err;
1507 
1508 	chip->multi_devno = 0;
1509 	chip->playback_devno = 1;
1510 	chip->capture_devno = 2;
1511 	chip->num_devs = 3;
1512 	chip->intr_mask = 0x03033000; /* FLAG|EOL for rec0, mc, sdx3 */
1513 
1514 	/* PCM #0:  multi-channel playback and capture */
1515 	err = snd_pcm_new(chip->card, chip->card->shortname, 0, 1, 1, &pcm);
1516 	if (err < 0)
1517 		return err;
1518 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_via8233_multi_ops);
1519 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_via8233_capture_ops);
1520 	pcm->private_data = chip;
1521 	strcpy(pcm->name, chip->card->shortname);
1522 	chip->pcms[0] = pcm;
1523 	/* set up playback */
1524 	init_viadev(chip, chip->multi_devno, VIA_REG_MULTPLAY_STATUS, 4, 0);
1525 	/* capture */
1526 	init_viadev(chip, chip->capture_devno, VIA_REG_CAPTURE_8233_STATUS, 6, 1);
1527 
1528 	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
1529 					      snd_dma_pci_data(chip->pci),
1530 					      64*1024, VIA_MAX_BUFSIZE);
1531 
1532 	err = snd_pcm_add_chmap_ctls(pcm, SNDRV_PCM_STREAM_PLAYBACK,
1533 				     snd_pcm_alt_chmaps, 6, 0,
1534 				     &chmap);
1535 	if (err < 0)
1536 		return err;
1537 	chip->ac97->chmaps[SNDRV_PCM_STREAM_PLAYBACK] = chmap;
1538 
1539 	/* SPDIF supported? */
1540 	if (! ac97_can_spdif(chip->ac97))
1541 		return 0;
1542 
1543 	/* PCM #1:  DXS3 playback (for spdif) */
1544 	err = snd_pcm_new(chip->card, chip->card->shortname, 1, 1, 0, &pcm);
1545 	if (err < 0)
1546 		return err;
1547 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_via8233_playback_ops);
1548 	pcm->private_data = chip;
1549 	strcpy(pcm->name, chip->card->shortname);
1550 	chip->pcms[1] = pcm;
1551 	/* set up playback */
1552 	init_viadev(chip, chip->playback_devno, 0x30, 3, 0);
1553 
1554 	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
1555 					      snd_dma_pci_data(chip->pci),
1556 					      64*1024, VIA_MAX_BUFSIZE);
1557 	return 0;
1558 }
1559 
1560 /*
1561  * create a pcm instance for via686a/b
1562  */
snd_via686_pcm_new(struct via82xx * chip)1563 static int snd_via686_pcm_new(struct via82xx *chip)
1564 {
1565 	struct snd_pcm *pcm;
1566 	int err;
1567 
1568 	chip->playback_devno = 0;
1569 	chip->capture_devno = 1;
1570 	chip->num_devs = 2;
1571 	chip->intr_mask = 0x77; /* FLAG | EOL for PB, CP, FM */
1572 
1573 	err = snd_pcm_new(chip->card, chip->card->shortname, 0, 1, 1, &pcm);
1574 	if (err < 0)
1575 		return err;
1576 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_via686_playback_ops);
1577 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_via686_capture_ops);
1578 	pcm->private_data = chip;
1579 	strcpy(pcm->name, chip->card->shortname);
1580 	chip->pcms[0] = pcm;
1581 	init_viadev(chip, 0, VIA_REG_PLAYBACK_STATUS, 0, 0);
1582 	init_viadev(chip, 1, VIA_REG_CAPTURE_STATUS, 0, 1);
1583 
1584 	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
1585 					      snd_dma_pci_data(chip->pci),
1586 					      64*1024, VIA_MAX_BUFSIZE);
1587 	return 0;
1588 }
1589 
1590 
1591 /*
1592  *  Mixer part
1593  */
1594 
snd_via8233_capture_source_info(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_info * uinfo)1595 static int snd_via8233_capture_source_info(struct snd_kcontrol *kcontrol,
1596 					   struct snd_ctl_elem_info *uinfo)
1597 {
1598 	/* formerly they were "Line" and "Mic", but it looks like that they
1599 	 * have nothing to do with the actual physical connections...
1600 	 */
1601 	static const char * const texts[2] = {
1602 		"Input1", "Input2"
1603 	};
1604 	return snd_ctl_enum_info(uinfo, 1, 2, texts);
1605 }
1606 
snd_via8233_capture_source_get(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)1607 static int snd_via8233_capture_source_get(struct snd_kcontrol *kcontrol,
1608 					  struct snd_ctl_elem_value *ucontrol)
1609 {
1610 	struct via82xx *chip = snd_kcontrol_chip(kcontrol);
1611 	unsigned long port = chip->port + (kcontrol->id.index ? (VIA_REG_CAPTURE_CHANNEL + 0x10) : VIA_REG_CAPTURE_CHANNEL);
1612 	ucontrol->value.enumerated.item[0] = inb(port) & VIA_REG_CAPTURE_CHANNEL_MIC ? 1 : 0;
1613 	return 0;
1614 }
1615 
snd_via8233_capture_source_put(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)1616 static int snd_via8233_capture_source_put(struct snd_kcontrol *kcontrol,
1617 					  struct snd_ctl_elem_value *ucontrol)
1618 {
1619 	struct via82xx *chip = snd_kcontrol_chip(kcontrol);
1620 	unsigned long port = chip->port + (kcontrol->id.index ? (VIA_REG_CAPTURE_CHANNEL + 0x10) : VIA_REG_CAPTURE_CHANNEL);
1621 	u8 val, oval;
1622 
1623 	spin_lock_irq(&chip->reg_lock);
1624 	oval = inb(port);
1625 	val = oval & ~VIA_REG_CAPTURE_CHANNEL_MIC;
1626 	if (ucontrol->value.enumerated.item[0])
1627 		val |= VIA_REG_CAPTURE_CHANNEL_MIC;
1628 	if (val != oval)
1629 		outb(val, port);
1630 	spin_unlock_irq(&chip->reg_lock);
1631 	return val != oval;
1632 }
1633 
1634 static struct snd_kcontrol_new snd_via8233_capture_source = {
1635 	.name = "Input Source Select",
1636 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1637 	.info = snd_via8233_capture_source_info,
1638 	.get = snd_via8233_capture_source_get,
1639 	.put = snd_via8233_capture_source_put,
1640 };
1641 
1642 #define snd_via8233_dxs3_spdif_info	snd_ctl_boolean_mono_info
1643 
snd_via8233_dxs3_spdif_get(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)1644 static int snd_via8233_dxs3_spdif_get(struct snd_kcontrol *kcontrol,
1645 				      struct snd_ctl_elem_value *ucontrol)
1646 {
1647 	struct via82xx *chip = snd_kcontrol_chip(kcontrol);
1648 	u8 val;
1649 
1650 	pci_read_config_byte(chip->pci, VIA8233_SPDIF_CTRL, &val);
1651 	ucontrol->value.integer.value[0] = (val & VIA8233_SPDIF_DX3) ? 1 : 0;
1652 	return 0;
1653 }
1654 
snd_via8233_dxs3_spdif_put(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)1655 static int snd_via8233_dxs3_spdif_put(struct snd_kcontrol *kcontrol,
1656 				      struct snd_ctl_elem_value *ucontrol)
1657 {
1658 	struct via82xx *chip = snd_kcontrol_chip(kcontrol);
1659 	u8 val, oval;
1660 
1661 	pci_read_config_byte(chip->pci, VIA8233_SPDIF_CTRL, &oval);
1662 	val = oval & ~VIA8233_SPDIF_DX3;
1663 	if (ucontrol->value.integer.value[0])
1664 		val |= VIA8233_SPDIF_DX3;
1665 	/* save the spdif flag for rate filtering */
1666 	chip->spdif_on = ucontrol->value.integer.value[0] ? 1 : 0;
1667 	if (val != oval) {
1668 		pci_write_config_byte(chip->pci, VIA8233_SPDIF_CTRL, val);
1669 		return 1;
1670 	}
1671 	return 0;
1672 }
1673 
1674 static const struct snd_kcontrol_new snd_via8233_dxs3_spdif_control = {
1675 	.name = SNDRV_CTL_NAME_IEC958("Output ",NONE,SWITCH),
1676 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1677 	.info = snd_via8233_dxs3_spdif_info,
1678 	.get = snd_via8233_dxs3_spdif_get,
1679 	.put = snd_via8233_dxs3_spdif_put,
1680 };
1681 
snd_via8233_dxs_volume_info(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_info * uinfo)1682 static int snd_via8233_dxs_volume_info(struct snd_kcontrol *kcontrol,
1683 				       struct snd_ctl_elem_info *uinfo)
1684 {
1685 	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
1686 	uinfo->count = 2;
1687 	uinfo->value.integer.min = 0;
1688 	uinfo->value.integer.max = VIA_DXS_MAX_VOLUME;
1689 	return 0;
1690 }
1691 
snd_via8233_dxs_volume_get(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)1692 static int snd_via8233_dxs_volume_get(struct snd_kcontrol *kcontrol,
1693 				      struct snd_ctl_elem_value *ucontrol)
1694 {
1695 	struct via82xx *chip = snd_kcontrol_chip(kcontrol);
1696 	unsigned int idx = kcontrol->id.subdevice;
1697 
1698 	ucontrol->value.integer.value[0] = VIA_DXS_MAX_VOLUME - chip->playback_volume[idx][0];
1699 	ucontrol->value.integer.value[1] = VIA_DXS_MAX_VOLUME - chip->playback_volume[idx][1];
1700 	return 0;
1701 }
1702 
snd_via8233_pcmdxs_volume_get(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)1703 static int snd_via8233_pcmdxs_volume_get(struct snd_kcontrol *kcontrol,
1704 					 struct snd_ctl_elem_value *ucontrol)
1705 {
1706 	struct via82xx *chip = snd_kcontrol_chip(kcontrol);
1707 	ucontrol->value.integer.value[0] = VIA_DXS_MAX_VOLUME - chip->playback_volume_c[0];
1708 	ucontrol->value.integer.value[1] = VIA_DXS_MAX_VOLUME - chip->playback_volume_c[1];
1709 	return 0;
1710 }
1711 
snd_via8233_dxs_volume_put(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)1712 static int snd_via8233_dxs_volume_put(struct snd_kcontrol *kcontrol,
1713 				      struct snd_ctl_elem_value *ucontrol)
1714 {
1715 	struct via82xx *chip = snd_kcontrol_chip(kcontrol);
1716 	unsigned int idx = kcontrol->id.subdevice;
1717 	unsigned long port = chip->port + 0x10 * idx;
1718 	unsigned char val;
1719 	int i, change = 0;
1720 
1721 	for (i = 0; i < 2; i++) {
1722 		val = ucontrol->value.integer.value[i];
1723 		if (val > VIA_DXS_MAX_VOLUME)
1724 			val = VIA_DXS_MAX_VOLUME;
1725 		val = VIA_DXS_MAX_VOLUME - val;
1726 		change |= val != chip->playback_volume[idx][i];
1727 		if (change) {
1728 			chip->playback_volume[idx][i] = val;
1729 			outb(val, port + VIA_REG_OFS_PLAYBACK_VOLUME_L + i);
1730 		}
1731 	}
1732 	return change;
1733 }
1734 
snd_via8233_pcmdxs_volume_put(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)1735 static int snd_via8233_pcmdxs_volume_put(struct snd_kcontrol *kcontrol,
1736 					 struct snd_ctl_elem_value *ucontrol)
1737 {
1738 	struct via82xx *chip = snd_kcontrol_chip(kcontrol);
1739 	unsigned int idx;
1740 	unsigned char val;
1741 	int i, change = 0;
1742 
1743 	for (i = 0; i < 2; i++) {
1744 		val = ucontrol->value.integer.value[i];
1745 		if (val > VIA_DXS_MAX_VOLUME)
1746 			val = VIA_DXS_MAX_VOLUME;
1747 		val = VIA_DXS_MAX_VOLUME - val;
1748 		if (val != chip->playback_volume_c[i]) {
1749 			change = 1;
1750 			chip->playback_volume_c[i] = val;
1751 			for (idx = 0; idx < 4; idx++) {
1752 				unsigned long port = chip->port + 0x10 * idx;
1753 				chip->playback_volume[idx][i] = val;
1754 				outb(val, port + VIA_REG_OFS_PLAYBACK_VOLUME_L + i);
1755 			}
1756 		}
1757 	}
1758 	return change;
1759 }
1760 
1761 static const DECLARE_TLV_DB_SCALE(db_scale_dxs, -4650, 150, 1);
1762 
1763 static const struct snd_kcontrol_new snd_via8233_pcmdxs_volume_control = {
1764 	.name = "PCM Playback Volume",
1765 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1766 	.access = (SNDRV_CTL_ELEM_ACCESS_READWRITE |
1767 		   SNDRV_CTL_ELEM_ACCESS_TLV_READ),
1768 	.info = snd_via8233_dxs_volume_info,
1769 	.get = snd_via8233_pcmdxs_volume_get,
1770 	.put = snd_via8233_pcmdxs_volume_put,
1771 	.tlv = { .p = db_scale_dxs }
1772 };
1773 
1774 static const struct snd_kcontrol_new snd_via8233_dxs_volume_control = {
1775 	.iface = SNDRV_CTL_ELEM_IFACE_PCM,
1776 	.device = 0,
1777 	/* .subdevice set later */
1778 	.name = "PCM Playback Volume",
1779 	.access = SNDRV_CTL_ELEM_ACCESS_READWRITE |
1780 		  SNDRV_CTL_ELEM_ACCESS_TLV_READ |
1781 		  SNDRV_CTL_ELEM_ACCESS_INACTIVE,
1782 	.info = snd_via8233_dxs_volume_info,
1783 	.get = snd_via8233_dxs_volume_get,
1784 	.put = snd_via8233_dxs_volume_put,
1785 	.tlv = { .p = db_scale_dxs }
1786 };
1787 
1788 /*
1789  */
1790 
snd_via82xx_mixer_free_ac97_bus(struct snd_ac97_bus * bus)1791 static void snd_via82xx_mixer_free_ac97_bus(struct snd_ac97_bus *bus)
1792 {
1793 	struct via82xx *chip = bus->private_data;
1794 	chip->ac97_bus = NULL;
1795 }
1796 
snd_via82xx_mixer_free_ac97(struct snd_ac97 * ac97)1797 static void snd_via82xx_mixer_free_ac97(struct snd_ac97 *ac97)
1798 {
1799 	struct via82xx *chip = ac97->private_data;
1800 	chip->ac97 = NULL;
1801 }
1802 
1803 static const struct ac97_quirk ac97_quirks[] = {
1804 	{
1805 		.subvendor = 0x1106,
1806 		.subdevice = 0x4161,
1807 		.codec_id = 0x56494161, /* VT1612A */
1808 		.name = "Soltek SL-75DRV5",
1809 		.type = AC97_TUNE_NONE
1810 	},
1811 	{	/* FIXME: which codec? */
1812 		.subvendor = 0x1106,
1813 		.subdevice = 0x4161,
1814 		.name = "ASRock K7VT2",
1815 		.type = AC97_TUNE_HP_ONLY
1816 	},
1817 	{
1818 		.subvendor = 0x110a,
1819 		.subdevice = 0x0079,
1820 		.name = "Fujitsu Siemens D1289",
1821 		.type = AC97_TUNE_HP_ONLY
1822 	},
1823 	{
1824 		.subvendor = 0x1019,
1825 		.subdevice = 0x0a81,
1826 		.name = "ECS K7VTA3",
1827 		.type = AC97_TUNE_HP_ONLY
1828 	},
1829 	{
1830 		.subvendor = 0x1019,
1831 		.subdevice = 0x0a85,
1832 		.name = "ECS L7VMM2",
1833 		.type = AC97_TUNE_HP_ONLY
1834 	},
1835 	{
1836 		.subvendor = 0x1019,
1837 		.subdevice = 0x1841,
1838 		.name = "ECS K7VTA3",
1839 		.type = AC97_TUNE_HP_ONLY
1840 	},
1841 	{
1842 		.subvendor = 0x1849,
1843 		.subdevice = 0x3059,
1844 		.name = "ASRock K7VM2",
1845 		.type = AC97_TUNE_HP_ONLY	/* VT1616 */
1846 	},
1847 	{
1848 		.subvendor = 0x14cd,
1849 		.subdevice = 0x7002,
1850 		.name = "Unknown",
1851 		.type = AC97_TUNE_ALC_JACK
1852 	},
1853 	{
1854 		.subvendor = 0x1071,
1855 		.subdevice = 0x8590,
1856 		.name = "Mitac Mobo",
1857 		.type = AC97_TUNE_ALC_JACK
1858 	},
1859 	{
1860 		.subvendor = 0x161f,
1861 		.subdevice = 0x202b,
1862 		.name = "Arima Notebook",
1863 		.type = AC97_TUNE_HP_ONLY,
1864 	},
1865 	{
1866 		.subvendor = 0x161f,
1867 		.subdevice = 0x2032,
1868 		.name = "Targa Traveller 811",
1869 		.type = AC97_TUNE_HP_ONLY,
1870 	},
1871 	{
1872 		.subvendor = 0x161f,
1873 		.subdevice = 0x2032,
1874 		.name = "m680x",
1875 		.type = AC97_TUNE_HP_ONLY, /* http://launchpad.net/bugs/38546 */
1876 	},
1877 	{
1878 		.subvendor = 0x1297,
1879 		.subdevice = 0xa232,
1880 		.name = "Shuttle AK32VN",
1881 		.type = AC97_TUNE_HP_ONLY
1882 	},
1883 	{ } /* terminator */
1884 };
1885 
snd_via82xx_mixer_new(struct via82xx * chip,const char * quirk_override)1886 static int snd_via82xx_mixer_new(struct via82xx *chip, const char *quirk_override)
1887 {
1888 	struct snd_ac97_template ac97;
1889 	int err;
1890 	static struct snd_ac97_bus_ops ops = {
1891 		.write = snd_via82xx_codec_write,
1892 		.read = snd_via82xx_codec_read,
1893 		.wait = snd_via82xx_codec_wait,
1894 	};
1895 
1896 	if ((err = snd_ac97_bus(chip->card, 0, &ops, chip, &chip->ac97_bus)) < 0)
1897 		return err;
1898 	chip->ac97_bus->private_free = snd_via82xx_mixer_free_ac97_bus;
1899 	chip->ac97_bus->clock = chip->ac97_clock;
1900 
1901 	memset(&ac97, 0, sizeof(ac97));
1902 	ac97.private_data = chip;
1903 	ac97.private_free = snd_via82xx_mixer_free_ac97;
1904 	ac97.pci = chip->pci;
1905 	ac97.scaps = AC97_SCAP_SKIP_MODEM | AC97_SCAP_POWER_SAVE;
1906 	if ((err = snd_ac97_mixer(chip->ac97_bus, &ac97, &chip->ac97)) < 0)
1907 		return err;
1908 
1909 	snd_ac97_tune_hardware(chip->ac97, ac97_quirks, quirk_override);
1910 
1911 	if (chip->chip_type != TYPE_VIA686) {
1912 		/* use slot 10/11 */
1913 		snd_ac97_update_bits(chip->ac97, AC97_EXTENDED_STATUS, 0x03 << 4, 0x03 << 4);
1914 	}
1915 
1916 	return 0;
1917 }
1918 
1919 #ifdef SUPPORT_JOYSTICK
1920 #define JOYSTICK_ADDR	0x200
snd_via686_create_gameport(struct via82xx * chip,unsigned char * legacy)1921 static int snd_via686_create_gameport(struct via82xx *chip, unsigned char *legacy)
1922 {
1923 	struct gameport *gp;
1924 	struct resource *r;
1925 
1926 	if (!joystick)
1927 		return -ENODEV;
1928 
1929 	r = request_region(JOYSTICK_ADDR, 8, "VIA686 gameport");
1930 	if (!r) {
1931 		dev_warn(chip->card->dev, "cannot reserve joystick port %#x\n",
1932 		       JOYSTICK_ADDR);
1933 		return -EBUSY;
1934 	}
1935 
1936 	chip->gameport = gp = gameport_allocate_port();
1937 	if (!gp) {
1938 		dev_err(chip->card->dev,
1939 			"cannot allocate memory for gameport\n");
1940 		release_and_free_resource(r);
1941 		return -ENOMEM;
1942 	}
1943 
1944 	gameport_set_name(gp, "VIA686 Gameport");
1945 	gameport_set_phys(gp, "pci%s/gameport0", pci_name(chip->pci));
1946 	gameport_set_dev_parent(gp, &chip->pci->dev);
1947 	gp->io = JOYSTICK_ADDR;
1948 	gameport_set_port_data(gp, r);
1949 
1950 	/* Enable legacy joystick port */
1951 	*legacy |= VIA_FUNC_ENABLE_GAME;
1952 	pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE, *legacy);
1953 
1954 	gameport_register_port(chip->gameport);
1955 
1956 	return 0;
1957 }
1958 
snd_via686_free_gameport(struct via82xx * chip)1959 static void snd_via686_free_gameport(struct via82xx *chip)
1960 {
1961 	if (chip->gameport) {
1962 		struct resource *r = gameport_get_port_data(chip->gameport);
1963 
1964 		gameport_unregister_port(chip->gameport);
1965 		chip->gameport = NULL;
1966 		release_and_free_resource(r);
1967 	}
1968 }
1969 #else
snd_via686_create_gameport(struct via82xx * chip,unsigned char * legacy)1970 static inline int snd_via686_create_gameport(struct via82xx *chip, unsigned char *legacy)
1971 {
1972 	return -ENOSYS;
1973 }
snd_via686_free_gameport(struct via82xx * chip)1974 static inline void snd_via686_free_gameport(struct via82xx *chip) { }
1975 #endif
1976 
1977 
1978 /*
1979  *
1980  */
1981 
snd_via8233_init_misc(struct via82xx * chip)1982 static int snd_via8233_init_misc(struct via82xx *chip)
1983 {
1984 	int i, err, caps;
1985 	unsigned char val;
1986 
1987 	caps = chip->chip_type == TYPE_VIA8233A ? 1 : 2;
1988 	for (i = 0; i < caps; i++) {
1989 		snd_via8233_capture_source.index = i;
1990 		err = snd_ctl_add(chip->card, snd_ctl_new1(&snd_via8233_capture_source, chip));
1991 		if (err < 0)
1992 			return err;
1993 	}
1994 	if (ac97_can_spdif(chip->ac97)) {
1995 		err = snd_ctl_add(chip->card, snd_ctl_new1(&snd_via8233_dxs3_spdif_control, chip));
1996 		if (err < 0)
1997 			return err;
1998 	}
1999 	if (chip->chip_type != TYPE_VIA8233A) {
2000 		/* when no h/w PCM volume control is found, use DXS volume control
2001 		 * as the PCM vol control
2002 		 */
2003 		struct snd_ctl_elem_id sid;
2004 		memset(&sid, 0, sizeof(sid));
2005 		strcpy(sid.name, "PCM Playback Volume");
2006 		sid.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
2007 		if (! snd_ctl_find_id(chip->card, &sid)) {
2008 			dev_info(chip->card->dev,
2009 				 "Using DXS as PCM Playback\n");
2010 			err = snd_ctl_add(chip->card, snd_ctl_new1(&snd_via8233_pcmdxs_volume_control, chip));
2011 			if (err < 0)
2012 				return err;
2013 		}
2014 		else /* Using DXS when PCM emulation is enabled is really weird */
2015 		{
2016 			for (i = 0; i < 4; ++i) {
2017 				struct snd_kcontrol *kctl;
2018 
2019 				kctl = snd_ctl_new1(
2020 					&snd_via8233_dxs_volume_control, chip);
2021 				if (!kctl)
2022 					return -ENOMEM;
2023 				kctl->id.subdevice = i;
2024 				err = snd_ctl_add(chip->card, kctl);
2025 				if (err < 0)
2026 					return err;
2027 				chip->dxs_controls[i] = kctl;
2028 			}
2029 		}
2030 	}
2031 	/* select spdif data slot 10/11 */
2032 	pci_read_config_byte(chip->pci, VIA8233_SPDIF_CTRL, &val);
2033 	val = (val & ~VIA8233_SPDIF_SLOT_MASK) | VIA8233_SPDIF_SLOT_1011;
2034 	val &= ~VIA8233_SPDIF_DX3; /* SPDIF off as default */
2035 	pci_write_config_byte(chip->pci, VIA8233_SPDIF_CTRL, val);
2036 
2037 	return 0;
2038 }
2039 
snd_via686_init_misc(struct via82xx * chip)2040 static int snd_via686_init_misc(struct via82xx *chip)
2041 {
2042 	unsigned char legacy, legacy_cfg;
2043 	int rev_h = 0;
2044 
2045 	legacy = chip->old_legacy;
2046 	legacy_cfg = chip->old_legacy_cfg;
2047 	legacy |= VIA_FUNC_MIDI_IRQMASK;	/* FIXME: correct? (disable MIDI) */
2048 	legacy &= ~VIA_FUNC_ENABLE_GAME;	/* disable joystick */
2049 	if (chip->revision >= VIA_REV_686_H) {
2050 		rev_h = 1;
2051 		if (mpu_port >= 0x200) {	/* force MIDI */
2052 			mpu_port &= 0xfffc;
2053 			pci_write_config_dword(chip->pci, 0x18, mpu_port | 0x01);
2054 #ifdef CONFIG_PM_SLEEP
2055 			chip->mpu_port_saved = mpu_port;
2056 #endif
2057 		} else {
2058 			mpu_port = pci_resource_start(chip->pci, 2);
2059 		}
2060 	} else {
2061 		switch (mpu_port) {	/* force MIDI */
2062 		case 0x300:
2063 		case 0x310:
2064 		case 0x320:
2065 		case 0x330:
2066 			legacy_cfg &= ~(3 << 2);
2067 			legacy_cfg |= (mpu_port & 0x0030) >> 2;
2068 			break;
2069 		default:			/* no, use BIOS settings */
2070 			if (legacy & VIA_FUNC_ENABLE_MIDI)
2071 				mpu_port = 0x300 + ((legacy_cfg & 0x000c) << 2);
2072 			break;
2073 		}
2074 	}
2075 	if (mpu_port >= 0x200 &&
2076 	    (chip->mpu_res = request_region(mpu_port, 2, "VIA82xx MPU401"))
2077 	    != NULL) {
2078 		if (rev_h)
2079 			legacy |= VIA_FUNC_MIDI_PNP;	/* enable PCI I/O 2 */
2080 		legacy |= VIA_FUNC_ENABLE_MIDI;
2081 	} else {
2082 		if (rev_h)
2083 			legacy &= ~VIA_FUNC_MIDI_PNP;	/* disable PCI I/O 2 */
2084 		legacy &= ~VIA_FUNC_ENABLE_MIDI;
2085 		mpu_port = 0;
2086 	}
2087 
2088 	pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE, legacy);
2089 	pci_write_config_byte(chip->pci, VIA_PNP_CONTROL, legacy_cfg);
2090 	if (chip->mpu_res) {
2091 		if (snd_mpu401_uart_new(chip->card, 0, MPU401_HW_VIA686A,
2092 					mpu_port, MPU401_INFO_INTEGRATED |
2093 					MPU401_INFO_IRQ_HOOK, -1,
2094 					&chip->rmidi) < 0) {
2095 			dev_warn(chip->card->dev,
2096 				 "unable to initialize MPU-401 at 0x%lx, skipping\n",
2097 				 mpu_port);
2098 			legacy &= ~VIA_FUNC_ENABLE_MIDI;
2099 		} else {
2100 			legacy &= ~VIA_FUNC_MIDI_IRQMASK;	/* enable MIDI interrupt */
2101 		}
2102 		pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE, legacy);
2103 	}
2104 
2105 	snd_via686_create_gameport(chip, &legacy);
2106 
2107 #ifdef CONFIG_PM_SLEEP
2108 	chip->legacy_saved = legacy;
2109 	chip->legacy_cfg_saved = legacy_cfg;
2110 #endif
2111 
2112 	return 0;
2113 }
2114 
2115 
2116 /*
2117  * proc interface
2118  */
snd_via82xx_proc_read(struct snd_info_entry * entry,struct snd_info_buffer * buffer)2119 static void snd_via82xx_proc_read(struct snd_info_entry *entry,
2120 				  struct snd_info_buffer *buffer)
2121 {
2122 	struct via82xx *chip = entry->private_data;
2123 	int i;
2124 
2125 	snd_iprintf(buffer, "%s\n\n", chip->card->longname);
2126 	for (i = 0; i < 0xa0; i += 4) {
2127 		snd_iprintf(buffer, "%02x: %08x\n", i, inl(chip->port + i));
2128 	}
2129 }
2130 
snd_via82xx_proc_init(struct via82xx * chip)2131 static void snd_via82xx_proc_init(struct via82xx *chip)
2132 {
2133 	snd_card_ro_proc_new(chip->card, "via82xx", chip,
2134 			     snd_via82xx_proc_read);
2135 }
2136 
2137 /*
2138  *
2139  */
2140 
snd_via82xx_chip_init(struct via82xx * chip)2141 static int snd_via82xx_chip_init(struct via82xx *chip)
2142 {
2143 	unsigned int val;
2144 	unsigned long end_time;
2145 	unsigned char pval;
2146 
2147 #if 0 /* broken on K7M? */
2148 	if (chip->chip_type == TYPE_VIA686)
2149 		/* disable all legacy ports */
2150 		pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE, 0);
2151 #endif
2152 	pci_read_config_byte(chip->pci, VIA_ACLINK_STAT, &pval);
2153 	if (! (pval & VIA_ACLINK_C00_READY)) { /* codec not ready? */
2154 		/* deassert ACLink reset, force SYNC */
2155 		pci_write_config_byte(chip->pci, VIA_ACLINK_CTRL,
2156 				      VIA_ACLINK_CTRL_ENABLE |
2157 				      VIA_ACLINK_CTRL_RESET |
2158 				      VIA_ACLINK_CTRL_SYNC);
2159 		udelay(100);
2160 #if 1 /* FIXME: should we do full reset here for all chip models? */
2161 		pci_write_config_byte(chip->pci, VIA_ACLINK_CTRL, 0x00);
2162 		udelay(100);
2163 #else
2164 		/* deassert ACLink reset, force SYNC (warm AC'97 reset) */
2165 		pci_write_config_byte(chip->pci, VIA_ACLINK_CTRL,
2166 				      VIA_ACLINK_CTRL_RESET|VIA_ACLINK_CTRL_SYNC);
2167 		udelay(2);
2168 #endif
2169 		/* ACLink on, deassert ACLink reset, VSR, SGD data out */
2170 		/* note - FM data out has trouble with non VRA codecs !! */
2171 		pci_write_config_byte(chip->pci, VIA_ACLINK_CTRL, VIA_ACLINK_CTRL_INIT);
2172 		udelay(100);
2173 	}
2174 
2175 	/* Make sure VRA is enabled, in case we didn't do a
2176 	 * complete codec reset, above */
2177 	pci_read_config_byte(chip->pci, VIA_ACLINK_CTRL, &pval);
2178 	if ((pval & VIA_ACLINK_CTRL_INIT) != VIA_ACLINK_CTRL_INIT) {
2179 		/* ACLink on, deassert ACLink reset, VSR, SGD data out */
2180 		/* note - FM data out has trouble with non VRA codecs !! */
2181 		pci_write_config_byte(chip->pci, VIA_ACLINK_CTRL, VIA_ACLINK_CTRL_INIT);
2182 		udelay(100);
2183 	}
2184 
2185 	/* wait until codec ready */
2186 	end_time = jiffies + msecs_to_jiffies(750);
2187 	do {
2188 		pci_read_config_byte(chip->pci, VIA_ACLINK_STAT, &pval);
2189 		if (pval & VIA_ACLINK_C00_READY) /* primary codec ready */
2190 			break;
2191 		schedule_timeout_uninterruptible(1);
2192 	} while (time_before(jiffies, end_time));
2193 
2194 	if ((val = snd_via82xx_codec_xread(chip)) & VIA_REG_AC97_BUSY)
2195 		dev_err(chip->card->dev,
2196 			"AC'97 codec is not ready [0x%x]\n", val);
2197 
2198 #if 0 /* FIXME: we don't support the second codec yet so skip the detection now.. */
2199 	snd_via82xx_codec_xwrite(chip, VIA_REG_AC97_READ |
2200 				 VIA_REG_AC97_SECONDARY_VALID |
2201 				 (VIA_REG_AC97_CODEC_ID_SECONDARY << VIA_REG_AC97_CODEC_ID_SHIFT));
2202 	end_time = jiffies + msecs_to_jiffies(750);
2203 	snd_via82xx_codec_xwrite(chip, VIA_REG_AC97_READ |
2204 				 VIA_REG_AC97_SECONDARY_VALID |
2205 				 (VIA_REG_AC97_CODEC_ID_SECONDARY << VIA_REG_AC97_CODEC_ID_SHIFT));
2206 	do {
2207 		if ((val = snd_via82xx_codec_xread(chip)) & VIA_REG_AC97_SECONDARY_VALID) {
2208 			chip->ac97_secondary = 1;
2209 			goto __ac97_ok2;
2210 		}
2211 		schedule_timeout_uninterruptible(1);
2212 	} while (time_before(jiffies, end_time));
2213 	/* This is ok, the most of motherboards have only one codec */
2214 
2215       __ac97_ok2:
2216 #endif
2217 
2218 	if (chip->chip_type == TYPE_VIA686) {
2219 		/* route FM trap to IRQ, disable FM trap */
2220 		pci_write_config_byte(chip->pci, VIA_FM_NMI_CTRL, 0);
2221 		/* disable all GPI interrupts */
2222 		outl(0, VIAREG(chip, GPI_INTR));
2223 	}
2224 
2225 	if (chip->chip_type != TYPE_VIA686) {
2226 		/* Workaround for Award BIOS bug:
2227 		 * DXS channels don't work properly with VRA if MC97 is disabled.
2228 		 */
2229 		struct pci_dev *pci;
2230 		pci = pci_get_device(0x1106, 0x3068, NULL); /* MC97 */
2231 		if (pci) {
2232 			unsigned char data;
2233 			pci_read_config_byte(pci, 0x44, &data);
2234 			pci_write_config_byte(pci, 0x44, data | 0x40);
2235 			pci_dev_put(pci);
2236 		}
2237 	}
2238 
2239 	if (chip->chip_type != TYPE_VIA8233A) {
2240 		int i, idx;
2241 		for (idx = 0; idx < 4; idx++) {
2242 			unsigned long port = chip->port + 0x10 * idx;
2243 			for (i = 0; i < 2; i++) {
2244 				chip->playback_volume[idx][i]=chip->playback_volume_c[i];
2245 				outb(chip->playback_volume_c[i],
2246 				     port + VIA_REG_OFS_PLAYBACK_VOLUME_L + i);
2247 			}
2248 		}
2249 	}
2250 
2251 	return 0;
2252 }
2253 
2254 #ifdef CONFIG_PM_SLEEP
2255 /*
2256  * power management
2257  */
snd_via82xx_suspend(struct device * dev)2258 static int snd_via82xx_suspend(struct device *dev)
2259 {
2260 	struct snd_card *card = dev_get_drvdata(dev);
2261 	struct via82xx *chip = card->private_data;
2262 	int i;
2263 
2264 	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
2265 	for (i = 0; i < chip->num_devs; i++)
2266 		snd_via82xx_channel_reset(chip, &chip->devs[i]);
2267 	synchronize_irq(chip->irq);
2268 	snd_ac97_suspend(chip->ac97);
2269 
2270 	/* save misc values */
2271 	if (chip->chip_type != TYPE_VIA686) {
2272 		pci_read_config_byte(chip->pci, VIA8233_SPDIF_CTRL, &chip->spdif_ctrl_saved);
2273 		chip->capture_src_saved[0] = inb(chip->port + VIA_REG_CAPTURE_CHANNEL);
2274 		chip->capture_src_saved[1] = inb(chip->port + VIA_REG_CAPTURE_CHANNEL + 0x10);
2275 	}
2276 
2277 	return 0;
2278 }
2279 
snd_via82xx_resume(struct device * dev)2280 static int snd_via82xx_resume(struct device *dev)
2281 {
2282 	struct snd_card *card = dev_get_drvdata(dev);
2283 	struct via82xx *chip = card->private_data;
2284 	int i;
2285 
2286 	snd_via82xx_chip_init(chip);
2287 
2288 	if (chip->chip_type == TYPE_VIA686) {
2289 		if (chip->mpu_port_saved)
2290 			pci_write_config_dword(chip->pci, 0x18, chip->mpu_port_saved | 0x01);
2291 		pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE, chip->legacy_saved);
2292 		pci_write_config_byte(chip->pci, VIA_PNP_CONTROL, chip->legacy_cfg_saved);
2293 	} else {
2294 		pci_write_config_byte(chip->pci, VIA8233_SPDIF_CTRL, chip->spdif_ctrl_saved);
2295 		outb(chip->capture_src_saved[0], chip->port + VIA_REG_CAPTURE_CHANNEL);
2296 		outb(chip->capture_src_saved[1], chip->port + VIA_REG_CAPTURE_CHANNEL + 0x10);
2297 	}
2298 
2299 	snd_ac97_resume(chip->ac97);
2300 
2301 	for (i = 0; i < chip->num_devs; i++)
2302 		snd_via82xx_channel_reset(chip, &chip->devs[i]);
2303 
2304 	snd_power_change_state(card, SNDRV_CTL_POWER_D0);
2305 	return 0;
2306 }
2307 
2308 static SIMPLE_DEV_PM_OPS(snd_via82xx_pm, snd_via82xx_suspend, snd_via82xx_resume);
2309 #define SND_VIA82XX_PM_OPS	&snd_via82xx_pm
2310 #else
2311 #define SND_VIA82XX_PM_OPS	NULL
2312 #endif /* CONFIG_PM_SLEEP */
2313 
snd_via82xx_free(struct via82xx * chip)2314 static int snd_via82xx_free(struct via82xx *chip)
2315 {
2316 	unsigned int i;
2317 
2318 	if (chip->irq < 0)
2319 		goto __end_hw;
2320 	/* disable interrupts */
2321 	for (i = 0; i < chip->num_devs; i++)
2322 		snd_via82xx_channel_reset(chip, &chip->devs[i]);
2323 
2324 	if (chip->irq >= 0)
2325 		free_irq(chip->irq, chip);
2326  __end_hw:
2327 	release_and_free_resource(chip->mpu_res);
2328 	pci_release_regions(chip->pci);
2329 
2330 	if (chip->chip_type == TYPE_VIA686) {
2331 		snd_via686_free_gameport(chip);
2332 		pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE, chip->old_legacy);
2333 		pci_write_config_byte(chip->pci, VIA_PNP_CONTROL, chip->old_legacy_cfg);
2334 	}
2335 	pci_disable_device(chip->pci);
2336 	kfree(chip);
2337 	return 0;
2338 }
2339 
snd_via82xx_dev_free(struct snd_device * device)2340 static int snd_via82xx_dev_free(struct snd_device *device)
2341 {
2342 	struct via82xx *chip = device->device_data;
2343 	return snd_via82xx_free(chip);
2344 }
2345 
snd_via82xx_create(struct snd_card * card,struct pci_dev * pci,int chip_type,int revision,unsigned int ac97_clock,struct via82xx ** r_via)2346 static int snd_via82xx_create(struct snd_card *card,
2347 			      struct pci_dev *pci,
2348 			      int chip_type,
2349 			      int revision,
2350 			      unsigned int ac97_clock,
2351 			      struct via82xx **r_via)
2352 {
2353 	struct via82xx *chip;
2354 	int err;
2355         static struct snd_device_ops ops = {
2356 		.dev_free =	snd_via82xx_dev_free,
2357         };
2358 
2359 	if ((err = pci_enable_device(pci)) < 0)
2360 		return err;
2361 
2362 	if ((chip = kzalloc(sizeof(*chip), GFP_KERNEL)) == NULL) {
2363 		pci_disable_device(pci);
2364 		return -ENOMEM;
2365 	}
2366 
2367 	chip->chip_type = chip_type;
2368 	chip->revision = revision;
2369 
2370 	spin_lock_init(&chip->reg_lock);
2371 	spin_lock_init(&chip->rates[0].lock);
2372 	spin_lock_init(&chip->rates[1].lock);
2373 	chip->card = card;
2374 	chip->pci = pci;
2375 	chip->irq = -1;
2376 
2377 	pci_read_config_byte(pci, VIA_FUNC_ENABLE, &chip->old_legacy);
2378 	pci_read_config_byte(pci, VIA_PNP_CONTROL, &chip->old_legacy_cfg);
2379 	pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE,
2380 			      chip->old_legacy & ~(VIA_FUNC_ENABLE_SB|VIA_FUNC_ENABLE_FM));
2381 
2382 	if ((err = pci_request_regions(pci, card->driver)) < 0) {
2383 		kfree(chip);
2384 		pci_disable_device(pci);
2385 		return err;
2386 	}
2387 	chip->port = pci_resource_start(pci, 0);
2388 	if (request_irq(pci->irq,
2389 			chip_type == TYPE_VIA8233 ?
2390 			snd_via8233_interrupt :	snd_via686_interrupt,
2391 			IRQF_SHARED,
2392 			KBUILD_MODNAME, chip)) {
2393 		dev_err(card->dev, "unable to grab IRQ %d\n", pci->irq);
2394 		snd_via82xx_free(chip);
2395 		return -EBUSY;
2396 	}
2397 	chip->irq = pci->irq;
2398 	if (ac97_clock >= 8000 && ac97_clock <= 48000)
2399 		chip->ac97_clock = ac97_clock;
2400 	synchronize_irq(chip->irq);
2401 
2402 	if ((err = snd_via82xx_chip_init(chip)) < 0) {
2403 		snd_via82xx_free(chip);
2404 		return err;
2405 	}
2406 
2407 	if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
2408 		snd_via82xx_free(chip);
2409 		return err;
2410 	}
2411 
2412 	/* The 8233 ac97 controller does not implement the master bit
2413 	 * in the pci command register. IMHO this is a violation of the PCI spec.
2414 	 * We call pci_set_master here because it does not hurt. */
2415 	pci_set_master(pci);
2416 
2417 	*r_via = chip;
2418 	return 0;
2419 }
2420 
2421 struct via823x_info {
2422 	int revision;
2423 	char *name;
2424 	int type;
2425 };
2426 static struct via823x_info via823x_cards[] = {
2427 	{ VIA_REV_PRE_8233, "VIA 8233-Pre", TYPE_VIA8233 },
2428 	{ VIA_REV_8233C, "VIA 8233C", TYPE_VIA8233 },
2429 	{ VIA_REV_8233, "VIA 8233", TYPE_VIA8233 },
2430 	{ VIA_REV_8233A, "VIA 8233A", TYPE_VIA8233A },
2431 	{ VIA_REV_8235, "VIA 8235", TYPE_VIA8233 },
2432 	{ VIA_REV_8237, "VIA 8237", TYPE_VIA8233 },
2433 	{ VIA_REV_8251, "VIA 8251", TYPE_VIA8233 },
2434 };
2435 
2436 /*
2437  * auto detection of DXS channel supports.
2438  */
2439 
2440 static struct snd_pci_quirk dxs_whitelist[] = {
2441 	SND_PCI_QUIRK(0x1005, 0x4710, "Avance Logic Mobo", VIA_DXS_ENABLE),
2442 	SND_PCI_QUIRK(0x1019, 0x0996, "ESC Mobo", VIA_DXS_48K),
2443 	SND_PCI_QUIRK(0x1019, 0x0a81, "ECS K7VTA3 v8.0", VIA_DXS_NO_VRA),
2444 	SND_PCI_QUIRK(0x1019, 0x0a85, "ECS L7VMM2", VIA_DXS_NO_VRA),
2445 	SND_PCI_QUIRK_VENDOR(0x1019, "ESC K8", VIA_DXS_SRC),
2446 	SND_PCI_QUIRK(0x1019, 0xaa01, "ESC K8T890-A", VIA_DXS_SRC),
2447 	SND_PCI_QUIRK(0x1025, 0x0033, "Acer Inspire 1353LM", VIA_DXS_NO_VRA),
2448 	SND_PCI_QUIRK(0x1025, 0x0046, "Acer Aspire 1524 WLMi", VIA_DXS_SRC),
2449 	SND_PCI_QUIRK_VENDOR(0x1043, "ASUS A7/A8", VIA_DXS_NO_VRA),
2450 	SND_PCI_QUIRK_VENDOR(0x1071, "Diverse Notebook", VIA_DXS_NO_VRA),
2451 	SND_PCI_QUIRK(0x10cf, 0x118e, "FSC Laptop", VIA_DXS_ENABLE),
2452 	SND_PCI_QUIRK_VENDOR(0x1106, "ASRock", VIA_DXS_SRC),
2453 	SND_PCI_QUIRK(0x1297, 0xa231, "Shuttle AK31v2", VIA_DXS_SRC),
2454 	SND_PCI_QUIRK(0x1297, 0xa232, "Shuttle", VIA_DXS_SRC),
2455 	SND_PCI_QUIRK(0x1297, 0xc160, "Shuttle Sk41G", VIA_DXS_SRC),
2456 	SND_PCI_QUIRK(0x1458, 0xa002, "Gigabyte GA-7VAXP", VIA_DXS_ENABLE),
2457 	SND_PCI_QUIRK(0x1462, 0x3800, "MSI KT266", VIA_DXS_ENABLE),
2458 	SND_PCI_QUIRK(0x1462, 0x7120, "MSI KT4V", VIA_DXS_ENABLE),
2459 	SND_PCI_QUIRK(0x1462, 0x7142, "MSI K8MM-V", VIA_DXS_ENABLE),
2460 	SND_PCI_QUIRK_VENDOR(0x1462, "MSI Mobo", VIA_DXS_SRC),
2461 	SND_PCI_QUIRK(0x147b, 0x1401, "ABIT KD7(-RAID)", VIA_DXS_ENABLE),
2462 	SND_PCI_QUIRK(0x147b, 0x1411, "ABIT VA-20", VIA_DXS_ENABLE),
2463 	SND_PCI_QUIRK(0x147b, 0x1413, "ABIT KV8 Pro", VIA_DXS_ENABLE),
2464 	SND_PCI_QUIRK(0x147b, 0x1415, "ABIT AV8", VIA_DXS_NO_VRA),
2465 	SND_PCI_QUIRK(0x14ff, 0x0403, "Twinhead mobo", VIA_DXS_ENABLE),
2466 	SND_PCI_QUIRK(0x14ff, 0x0408, "Twinhead laptop", VIA_DXS_SRC),
2467 	SND_PCI_QUIRK(0x1558, 0x4701, "Clevo D470", VIA_DXS_SRC),
2468 	SND_PCI_QUIRK(0x1584, 0x8120, "Diverse Laptop", VIA_DXS_ENABLE),
2469 	SND_PCI_QUIRK(0x1584, 0x8123, "Targa/Uniwill", VIA_DXS_NO_VRA),
2470 	SND_PCI_QUIRK(0x161f, 0x202b, "Amira Notebook", VIA_DXS_NO_VRA),
2471 	SND_PCI_QUIRK(0x161f, 0x2032, "m680x machines", VIA_DXS_48K),
2472 	SND_PCI_QUIRK(0x1631, 0xe004, "PB EasyNote 3174", VIA_DXS_ENABLE),
2473 	SND_PCI_QUIRK(0x1695, 0x3005, "EPoX EP-8K9A", VIA_DXS_ENABLE),
2474 	SND_PCI_QUIRK_VENDOR(0x1695, "EPoX mobo", VIA_DXS_SRC),
2475 	SND_PCI_QUIRK_VENDOR(0x16f3, "Jetway K8", VIA_DXS_SRC),
2476 	SND_PCI_QUIRK_VENDOR(0x1734, "FSC Laptop", VIA_DXS_SRC),
2477 	SND_PCI_QUIRK(0x1849, 0x3059, "ASRock K7VM2", VIA_DXS_NO_VRA),
2478 	SND_PCI_QUIRK_VENDOR(0x1849, "ASRock mobo", VIA_DXS_SRC),
2479 	SND_PCI_QUIRK(0x1919, 0x200a, "Soltek SL-K8",  VIA_DXS_NO_VRA),
2480 	SND_PCI_QUIRK(0x4005, 0x4710, "MSI K7T266", VIA_DXS_SRC),
2481 	{ } /* terminator */
2482 };
2483 
check_dxs_list(struct pci_dev * pci,int revision)2484 static int check_dxs_list(struct pci_dev *pci, int revision)
2485 {
2486 	const struct snd_pci_quirk *w;
2487 
2488 	w = snd_pci_quirk_lookup(pci, dxs_whitelist);
2489 	if (w) {
2490 		dev_dbg(&pci->dev, "DXS white list for %s found\n",
2491 			    snd_pci_quirk_name(w));
2492 		return w->value;
2493 	}
2494 
2495 	/* for newer revision, default to DXS_SRC */
2496 	if (revision >= VIA_REV_8235)
2497 		return VIA_DXS_SRC;
2498 
2499 	/*
2500 	 * not detected, try 48k rate only to be sure.
2501 	 */
2502 	dev_info(&pci->dev, "Assuming DXS channels with 48k fixed sample rate.\n");
2503 	dev_info(&pci->dev, "         Please try dxs_support=5 option\n");
2504 	dev_info(&pci->dev, "         and report if it works on your machine.\n");
2505 	dev_info(&pci->dev, "         For more details, read ALSA-Configuration.txt.\n");
2506 	return VIA_DXS_48K;
2507 };
2508 
snd_via82xx_probe(struct pci_dev * pci,const struct pci_device_id * pci_id)2509 static int snd_via82xx_probe(struct pci_dev *pci,
2510 			     const struct pci_device_id *pci_id)
2511 {
2512 	struct snd_card *card;
2513 	struct via82xx *chip;
2514 	int chip_type = 0, card_type;
2515 	unsigned int i;
2516 	int err;
2517 
2518 	err = snd_card_new(&pci->dev, index, id, THIS_MODULE, 0, &card);
2519 	if (err < 0)
2520 		return err;
2521 
2522 	card_type = pci_id->driver_data;
2523 	switch (card_type) {
2524 	case TYPE_CARD_VIA686:
2525 		strcpy(card->driver, "VIA686A");
2526 		sprintf(card->shortname, "VIA 82C686A/B rev%x", pci->revision);
2527 		chip_type = TYPE_VIA686;
2528 		break;
2529 	case TYPE_CARD_VIA8233:
2530 		chip_type = TYPE_VIA8233;
2531 		sprintf(card->shortname, "VIA 823x rev%x", pci->revision);
2532 		for (i = 0; i < ARRAY_SIZE(via823x_cards); i++) {
2533 			if (pci->revision == via823x_cards[i].revision) {
2534 				chip_type = via823x_cards[i].type;
2535 				strcpy(card->shortname, via823x_cards[i].name);
2536 				break;
2537 			}
2538 		}
2539 		if (chip_type != TYPE_VIA8233A) {
2540 			if (dxs_support == VIA_DXS_AUTO)
2541 				dxs_support = check_dxs_list(pci, pci->revision);
2542 			/* force to use VIA8233 or 8233A model according to
2543 			 * dxs_support module option
2544 			 */
2545 			if (dxs_support == VIA_DXS_DISABLE)
2546 				chip_type = TYPE_VIA8233A;
2547 			else
2548 				chip_type = TYPE_VIA8233;
2549 		}
2550 		if (chip_type == TYPE_VIA8233A)
2551 			strcpy(card->driver, "VIA8233A");
2552 		else if (pci->revision >= VIA_REV_8237)
2553 			strcpy(card->driver, "VIA8237"); /* no slog assignment */
2554 		else
2555 			strcpy(card->driver, "VIA8233");
2556 		break;
2557 	default:
2558 		dev_err(card->dev, "invalid card type %d\n", card_type);
2559 		err = -EINVAL;
2560 		goto __error;
2561 	}
2562 
2563 	if ((err = snd_via82xx_create(card, pci, chip_type, pci->revision,
2564 				      ac97_clock, &chip)) < 0)
2565 		goto __error;
2566 	card->private_data = chip;
2567 	if ((err = snd_via82xx_mixer_new(chip, ac97_quirk)) < 0)
2568 		goto __error;
2569 
2570 	if (chip_type == TYPE_VIA686) {
2571 		if ((err = snd_via686_pcm_new(chip)) < 0 ||
2572 		    (err = snd_via686_init_misc(chip)) < 0)
2573 			goto __error;
2574 	} else {
2575 		if (chip_type == TYPE_VIA8233A) {
2576 			if ((err = snd_via8233a_pcm_new(chip)) < 0)
2577 				goto __error;
2578 			// chip->dxs_fixed = 1; /* FIXME: use 48k for DXS #3? */
2579 		} else {
2580 			if ((err = snd_via8233_pcm_new(chip)) < 0)
2581 				goto __error;
2582 			if (dxs_support == VIA_DXS_48K)
2583 				chip->dxs_fixed = 1;
2584 			else if (dxs_support == VIA_DXS_NO_VRA)
2585 				chip->no_vra = 1;
2586 			else if (dxs_support == VIA_DXS_SRC) {
2587 				chip->no_vra = 1;
2588 				chip->dxs_src = 1;
2589 			}
2590 		}
2591 		if ((err = snd_via8233_init_misc(chip)) < 0)
2592 			goto __error;
2593 	}
2594 
2595 	/* disable interrupts */
2596 	for (i = 0; i < chip->num_devs; i++)
2597 		snd_via82xx_channel_reset(chip, &chip->devs[i]);
2598 
2599 	snprintf(card->longname, sizeof(card->longname),
2600 		 "%s with %s at %#lx, irq %d", card->shortname,
2601 		 snd_ac97_get_short_name(chip->ac97), chip->port, chip->irq);
2602 
2603 	snd_via82xx_proc_init(chip);
2604 
2605 	if ((err = snd_card_register(card)) < 0) {
2606 		snd_card_free(card);
2607 		return err;
2608 	}
2609 	pci_set_drvdata(pci, card);
2610 	return 0;
2611 
2612  __error:
2613 	snd_card_free(card);
2614 	return err;
2615 }
2616 
snd_via82xx_remove(struct pci_dev * pci)2617 static void snd_via82xx_remove(struct pci_dev *pci)
2618 {
2619 	snd_card_free(pci_get_drvdata(pci));
2620 }
2621 
2622 static struct pci_driver via82xx_driver = {
2623 	.name = KBUILD_MODNAME,
2624 	.id_table = snd_via82xx_ids,
2625 	.probe = snd_via82xx_probe,
2626 	.remove = snd_via82xx_remove,
2627 	.driver = {
2628 		.pm = SND_VIA82XX_PM_OPS,
2629 	},
2630 };
2631 
2632 module_pci_driver(via82xx_driver);
2633