xref: /openbmc/linux/sound/pci/intel8x0.c (revision 56c6eed1)
1 /*
2  *   ALSA driver for Intel ICH (i8x0) chipsets
3  *
4  *	Copyright (c) 2000 Jaroslav Kysela <perex@perex.cz>
5  *
6  *
7  *   This code also contains alpha support for SiS 735 chipsets provided
8  *   by Mike Pieper <mptei@users.sourceforge.net>. We have no datasheet
9  *   for SiS735, so the code is not fully functional.
10  *
11  *
12  *   This program is free software; you can redistribute it and/or modify
13  *   it under the terms of the GNU General Public License as published by
14  *   the Free Software Foundation; either version 2 of the License, or
15  *   (at your option) any later version.
16  *
17  *   This program is distributed in the hope that it will be useful,
18  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
19  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
20  *   GNU General Public License for more details.
21  *
22  *   You should have received a copy of the GNU General Public License
23  *   along with this program; if not, write to the Free Software
24  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
25 
26  *
27  */
28 
29 #include <linux/io.h>
30 #include <linux/delay.h>
31 #include <linux/interrupt.h>
32 #include <linux/init.h>
33 #include <linux/pci.h>
34 #include <linux/slab.h>
35 #include <linux/module.h>
36 #include <sound/core.h>
37 #include <sound/pcm.h>
38 #include <sound/ac97_codec.h>
39 #include <sound/info.h>
40 #include <sound/initval.h>
41 
42 MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
43 MODULE_DESCRIPTION("Intel 82801AA,82901AB,i810,i820,i830,i840,i845,MX440; SiS 7012; Ali 5455");
44 MODULE_LICENSE("GPL");
45 MODULE_SUPPORTED_DEVICE("{{Intel,82801AA-ICH},"
46 		"{Intel,82901AB-ICH0},"
47 		"{Intel,82801BA-ICH2},"
48 		"{Intel,82801CA-ICH3},"
49 		"{Intel,82801DB-ICH4},"
50 		"{Intel,ICH5},"
51 		"{Intel,ICH6},"
52 		"{Intel,ICH7},"
53 		"{Intel,6300ESB},"
54 		"{Intel,ESB2},"
55 		"{Intel,MX440},"
56 		"{SiS,SI7012},"
57 		"{NVidia,nForce Audio},"
58 		"{NVidia,nForce2 Audio},"
59 		"{NVidia,nForce3 Audio},"
60 		"{NVidia,MCP04},"
61 		"{NVidia,MCP501},"
62 		"{NVidia,CK804},"
63 		"{NVidia,CK8},"
64 		"{NVidia,CK8S},"
65 		"{AMD,AMD768},"
66 		"{AMD,AMD8111},"
67 	        "{ALI,M5455}}");
68 
69 static int index = SNDRV_DEFAULT_IDX1;	/* Index 0-MAX */
70 static char *id = SNDRV_DEFAULT_STR1;	/* ID for this card */
71 static int ac97_clock;
72 static char *ac97_quirk;
73 static bool buggy_semaphore;
74 static int buggy_irq = -1; /* auto-check */
75 static bool xbox;
76 static int spdif_aclink = -1;
77 static int inside_vm = -1;
78 
79 module_param(index, int, 0444);
80 MODULE_PARM_DESC(index, "Index value for Intel i8x0 soundcard.");
81 module_param(id, charp, 0444);
82 MODULE_PARM_DESC(id, "ID string for Intel i8x0 soundcard.");
83 module_param(ac97_clock, int, 0444);
84 MODULE_PARM_DESC(ac97_clock, "AC'97 codec clock (0 = whitelist + auto-detect, 1 = force autodetect).");
85 module_param(ac97_quirk, charp, 0444);
86 MODULE_PARM_DESC(ac97_quirk, "AC'97 workaround for strange hardware.");
87 module_param(buggy_semaphore, bool, 0444);
88 MODULE_PARM_DESC(buggy_semaphore, "Enable workaround for hardwares with problematic codec semaphores.");
89 module_param(buggy_irq, bint, 0444);
90 MODULE_PARM_DESC(buggy_irq, "Enable workaround for buggy interrupts on some motherboards.");
91 module_param(xbox, bool, 0444);
92 MODULE_PARM_DESC(xbox, "Set to 1 for Xbox, if you have problems with the AC'97 codec detection.");
93 module_param(spdif_aclink, int, 0444);
94 MODULE_PARM_DESC(spdif_aclink, "S/PDIF over AC-link.");
95 module_param(inside_vm, bint, 0444);
96 MODULE_PARM_DESC(inside_vm, "KVM/Parallels optimization.");
97 
98 /* just for backward compatibility */
99 static bool enable;
100 module_param(enable, bool, 0444);
101 static int joystick;
102 module_param(joystick, int, 0444);
103 
104 /*
105  *  Direct registers
106  */
107 enum { DEVICE_INTEL, DEVICE_INTEL_ICH4, DEVICE_SIS, DEVICE_ALI, DEVICE_NFORCE };
108 
109 #define ICHREG(x) ICH_REG_##x
110 
111 #define DEFINE_REGSET(name,base) \
112 enum { \
113 	ICH_REG_##name##_BDBAR	= base + 0x0,	/* dword - buffer descriptor list base address */ \
114 	ICH_REG_##name##_CIV	= base + 0x04,	/* byte - current index value */ \
115 	ICH_REG_##name##_LVI	= base + 0x05,	/* byte - last valid index */ \
116 	ICH_REG_##name##_SR	= base + 0x06,	/* byte - status register */ \
117 	ICH_REG_##name##_PICB	= base + 0x08,	/* word - position in current buffer */ \
118 	ICH_REG_##name##_PIV	= base + 0x0a,	/* byte - prefetched index value */ \
119 	ICH_REG_##name##_CR	= base + 0x0b,	/* byte - control register */ \
120 };
121 
122 /* busmaster blocks */
123 DEFINE_REGSET(OFF, 0);		/* offset */
124 DEFINE_REGSET(PI, 0x00);	/* PCM in */
125 DEFINE_REGSET(PO, 0x10);	/* PCM out */
126 DEFINE_REGSET(MC, 0x20);	/* Mic in */
127 
128 /* ICH4 busmaster blocks */
129 DEFINE_REGSET(MC2, 0x40);	/* Mic in 2 */
130 DEFINE_REGSET(PI2, 0x50);	/* PCM in 2 */
131 DEFINE_REGSET(SP, 0x60);	/* SPDIF out */
132 
133 /* values for each busmaster block */
134 
135 /* LVI */
136 #define ICH_REG_LVI_MASK		0x1f
137 
138 /* SR */
139 #define ICH_FIFOE			0x10	/* FIFO error */
140 #define ICH_BCIS			0x08	/* buffer completion interrupt status */
141 #define ICH_LVBCI			0x04	/* last valid buffer completion interrupt */
142 #define ICH_CELV			0x02	/* current equals last valid */
143 #define ICH_DCH				0x01	/* DMA controller halted */
144 
145 /* PIV */
146 #define ICH_REG_PIV_MASK		0x1f	/* mask */
147 
148 /* CR */
149 #define ICH_IOCE			0x10	/* interrupt on completion enable */
150 #define ICH_FEIE			0x08	/* fifo error interrupt enable */
151 #define ICH_LVBIE			0x04	/* last valid buffer interrupt enable */
152 #define ICH_RESETREGS			0x02	/* reset busmaster registers */
153 #define ICH_STARTBM			0x01	/* start busmaster operation */
154 
155 
156 /* global block */
157 #define ICH_REG_GLOB_CNT		0x2c	/* dword - global control */
158 #define   ICH_PCM_SPDIF_MASK	0xc0000000	/* s/pdif pcm slot mask (ICH4) */
159 #define   ICH_PCM_SPDIF_NONE	0x00000000	/* reserved - undefined */
160 #define   ICH_PCM_SPDIF_78	0x40000000	/* s/pdif pcm on slots 7&8 */
161 #define   ICH_PCM_SPDIF_69	0x80000000	/* s/pdif pcm on slots 6&9 */
162 #define   ICH_PCM_SPDIF_1011	0xc0000000	/* s/pdif pcm on slots 10&11 */
163 #define   ICH_PCM_20BIT		0x00400000	/* 20-bit samples (ICH4) */
164 #define   ICH_PCM_246_MASK	0x00300000	/* chan mask (not all chips) */
165 #define   ICH_PCM_8		0x00300000      /* 8 channels (not all chips) */
166 #define   ICH_PCM_6		0x00200000	/* 6 channels (not all chips) */
167 #define   ICH_PCM_4		0x00100000	/* 4 channels (not all chips) */
168 #define   ICH_PCM_2		0x00000000	/* 2 channels (stereo) */
169 #define   ICH_SIS_PCM_246_MASK	0x000000c0	/* 6 channels (SIS7012) */
170 #define   ICH_SIS_PCM_6		0x00000080	/* 6 channels (SIS7012) */
171 #define   ICH_SIS_PCM_4		0x00000040	/* 4 channels (SIS7012) */
172 #define   ICH_SIS_PCM_2		0x00000000	/* 2 channels (SIS7012) */
173 #define   ICH_TRIE		0x00000040	/* tertiary resume interrupt enable */
174 #define   ICH_SRIE		0x00000020	/* secondary resume interrupt enable */
175 #define   ICH_PRIE		0x00000010	/* primary resume interrupt enable */
176 #define   ICH_ACLINK		0x00000008	/* AClink shut off */
177 #define   ICH_AC97WARM		0x00000004	/* AC'97 warm reset */
178 #define   ICH_AC97COLD		0x00000002	/* AC'97 cold reset */
179 #define   ICH_GIE		0x00000001	/* GPI interrupt enable */
180 #define ICH_REG_GLOB_STA		0x30	/* dword - global status */
181 #define   ICH_TRI		0x20000000	/* ICH4: tertiary (AC_SDIN2) resume interrupt */
182 #define   ICH_TCR		0x10000000	/* ICH4: tertiary (AC_SDIN2) codec ready */
183 #define   ICH_BCS		0x08000000	/* ICH4: bit clock stopped */
184 #define   ICH_SPINT		0x04000000	/* ICH4: S/PDIF interrupt */
185 #define   ICH_P2INT		0x02000000	/* ICH4: PCM2-In interrupt */
186 #define   ICH_M2INT		0x01000000	/* ICH4: Mic2-In interrupt */
187 #define   ICH_SAMPLE_CAP	0x00c00000	/* ICH4: sample capability bits (RO) */
188 #define   ICH_SAMPLE_16_20	0x00400000	/* ICH4: 16- and 20-bit samples */
189 #define   ICH_MULTICHAN_CAP	0x00300000	/* ICH4: multi-channel capability bits (RO) */
190 #define   ICH_SIS_TRI		0x00080000	/* SIS: tertiary resume irq */
191 #define   ICH_SIS_TCR		0x00040000	/* SIS: tertiary codec ready */
192 #define   ICH_MD3		0x00020000	/* modem power down semaphore */
193 #define   ICH_AD3		0x00010000	/* audio power down semaphore */
194 #define   ICH_RCS		0x00008000	/* read completion status */
195 #define   ICH_BIT3		0x00004000	/* bit 3 slot 12 */
196 #define   ICH_BIT2		0x00002000	/* bit 2 slot 12 */
197 #define   ICH_BIT1		0x00001000	/* bit 1 slot 12 */
198 #define   ICH_SRI		0x00000800	/* secondary (AC_SDIN1) resume interrupt */
199 #define   ICH_PRI		0x00000400	/* primary (AC_SDIN0) resume interrupt */
200 #define   ICH_SCR		0x00000200	/* secondary (AC_SDIN1) codec ready */
201 #define   ICH_PCR		0x00000100	/* primary (AC_SDIN0) codec ready */
202 #define   ICH_MCINT		0x00000080	/* MIC capture interrupt */
203 #define   ICH_POINT		0x00000040	/* playback interrupt */
204 #define   ICH_PIINT		0x00000020	/* capture interrupt */
205 #define   ICH_NVSPINT		0x00000010	/* nforce spdif interrupt */
206 #define   ICH_MOINT		0x00000004	/* modem playback interrupt */
207 #define   ICH_MIINT		0x00000002	/* modem capture interrupt */
208 #define   ICH_GSCI		0x00000001	/* GPI status change interrupt */
209 #define ICH_REG_ACC_SEMA		0x34	/* byte - codec write semaphore */
210 #define   ICH_CAS		0x01		/* codec access semaphore */
211 #define ICH_REG_SDM		0x80
212 #define   ICH_DI2L_MASK		0x000000c0	/* PCM In 2, Mic In 2 data in line */
213 #define   ICH_DI2L_SHIFT	6
214 #define   ICH_DI1L_MASK		0x00000030	/* PCM In 1, Mic In 1 data in line */
215 #define   ICH_DI1L_SHIFT	4
216 #define   ICH_SE		0x00000008	/* steer enable */
217 #define   ICH_LDI_MASK		0x00000003	/* last codec read data input */
218 
219 #define ICH_MAX_FRAGS		32		/* max hw frags */
220 
221 
222 /*
223  * registers for Ali5455
224  */
225 
226 /* ALi 5455 busmaster blocks */
227 DEFINE_REGSET(AL_PI, 0x40);	/* ALi PCM in */
228 DEFINE_REGSET(AL_PO, 0x50);	/* Ali PCM out */
229 DEFINE_REGSET(AL_MC, 0x60);	/* Ali Mic in */
230 DEFINE_REGSET(AL_CDC_SPO, 0x70);	/* Ali Codec SPDIF out */
231 DEFINE_REGSET(AL_CENTER, 0x80);		/* Ali center out */
232 DEFINE_REGSET(AL_LFE, 0x90);		/* Ali center out */
233 DEFINE_REGSET(AL_CLR_SPI, 0xa0);	/* Ali Controller SPDIF in */
234 DEFINE_REGSET(AL_CLR_SPO, 0xb0);	/* Ali Controller SPDIF out */
235 DEFINE_REGSET(AL_I2S, 0xc0);	/* Ali I2S in */
236 DEFINE_REGSET(AL_PI2, 0xd0);	/* Ali PCM2 in */
237 DEFINE_REGSET(AL_MC2, 0xe0);	/* Ali Mic2 in */
238 
239 enum {
240 	ICH_REG_ALI_SCR = 0x00,		/* System Control Register */
241 	ICH_REG_ALI_SSR = 0x04,		/* System Status Register  */
242 	ICH_REG_ALI_DMACR = 0x08,	/* DMA Control Register    */
243 	ICH_REG_ALI_FIFOCR1 = 0x0c,	/* FIFO Control Register 1  */
244 	ICH_REG_ALI_INTERFACECR = 0x10,	/* Interface Control Register */
245 	ICH_REG_ALI_INTERRUPTCR = 0x14,	/* Interrupt control Register */
246 	ICH_REG_ALI_INTERRUPTSR = 0x18,	/* Interrupt  Status Register */
247 	ICH_REG_ALI_FIFOCR2 = 0x1c,	/* FIFO Control Register 2   */
248 	ICH_REG_ALI_CPR = 0x20,		/* Command Port Register     */
249 	ICH_REG_ALI_CPR_ADDR = 0x22,	/* ac97 addr write */
250 	ICH_REG_ALI_SPR = 0x24,		/* Status Port Register      */
251 	ICH_REG_ALI_SPR_ADDR = 0x26,	/* ac97 addr read */
252 	ICH_REG_ALI_FIFOCR3 = 0x2c,	/* FIFO Control Register 3  */
253 	ICH_REG_ALI_TTSR = 0x30,	/* Transmit Tag Slot Register */
254 	ICH_REG_ALI_RTSR = 0x34,	/* Receive Tag Slot  Register */
255 	ICH_REG_ALI_CSPSR = 0x38,	/* Command/Status Port Status Register */
256 	ICH_REG_ALI_CAS = 0x3c,		/* Codec Write Semaphore Register */
257 	ICH_REG_ALI_HWVOL = 0xf0,	/* hardware volume control/status */
258 	ICH_REG_ALI_I2SCR = 0xf4,	/* I2S control/status */
259 	ICH_REG_ALI_SPDIFCSR = 0xf8,	/* spdif channel status register  */
260 	ICH_REG_ALI_SPDIFICS = 0xfc,	/* spdif interface control/status  */
261 };
262 
263 #define ALI_CAS_SEM_BUSY	0x80000000
264 #define ALI_CPR_ADDR_SECONDARY	0x100
265 #define ALI_CPR_ADDR_READ	0x80
266 #define ALI_CSPSR_CODEC_READY	0x08
267 #define ALI_CSPSR_READ_OK	0x02
268 #define ALI_CSPSR_WRITE_OK	0x01
269 
270 /* interrupts for the whole chip by interrupt status register finish */
271 
272 #define ALI_INT_MICIN2		(1<<26)
273 #define ALI_INT_PCMIN2		(1<<25)
274 #define ALI_INT_I2SIN		(1<<24)
275 #define ALI_INT_SPDIFOUT	(1<<23)	/* controller spdif out INTERRUPT */
276 #define ALI_INT_SPDIFIN		(1<<22)
277 #define ALI_INT_LFEOUT		(1<<21)
278 #define ALI_INT_CENTEROUT	(1<<20)
279 #define ALI_INT_CODECSPDIFOUT	(1<<19)
280 #define ALI_INT_MICIN		(1<<18)
281 #define ALI_INT_PCMOUT		(1<<17)
282 #define ALI_INT_PCMIN		(1<<16)
283 #define ALI_INT_CPRAIS		(1<<7)	/* command port available */
284 #define ALI_INT_SPRAIS		(1<<5)	/* status port available */
285 #define ALI_INT_GPIO		(1<<1)
286 #define ALI_INT_MASK		(ALI_INT_SPDIFOUT|ALI_INT_CODECSPDIFOUT|\
287 				 ALI_INT_MICIN|ALI_INT_PCMOUT|ALI_INT_PCMIN)
288 
289 #define ICH_ALI_SC_RESET	(1<<31)	/* master reset */
290 #define ICH_ALI_SC_AC97_DBL	(1<<30)
291 #define ICH_ALI_SC_CODEC_SPDF	(3<<20)	/* 1=7/8, 2=6/9, 3=10/11 */
292 #define ICH_ALI_SC_IN_BITS	(3<<18)
293 #define ICH_ALI_SC_OUT_BITS	(3<<16)
294 #define ICH_ALI_SC_6CH_CFG	(3<<14)
295 #define ICH_ALI_SC_PCM_4	(1<<8)
296 #define ICH_ALI_SC_PCM_6	(2<<8)
297 #define ICH_ALI_SC_PCM_246_MASK	(3<<8)
298 
299 #define ICH_ALI_SS_SEC_ID	(3<<5)
300 #define ICH_ALI_SS_PRI_ID	(3<<3)
301 
302 #define ICH_ALI_IF_AC97SP	(1<<21)
303 #define ICH_ALI_IF_MC		(1<<20)
304 #define ICH_ALI_IF_PI		(1<<19)
305 #define ICH_ALI_IF_MC2		(1<<18)
306 #define ICH_ALI_IF_PI2		(1<<17)
307 #define ICH_ALI_IF_LINE_SRC	(1<<15)	/* 0/1 = slot 3/6 */
308 #define ICH_ALI_IF_MIC_SRC	(1<<14)	/* 0/1 = slot 3/6 */
309 #define ICH_ALI_IF_SPDF_SRC	(3<<12)	/* 00 = PCM, 01 = AC97-in, 10 = spdif-in, 11 = i2s */
310 #define ICH_ALI_IF_AC97_OUT	(3<<8)	/* 00 = PCM, 10 = spdif-in, 11 = i2s */
311 #define ICH_ALI_IF_PO_SPDF	(1<<3)
312 #define ICH_ALI_IF_PO		(1<<1)
313 
314 /*
315  *
316  */
317 
318 enum {
319 	ICHD_PCMIN,
320 	ICHD_PCMOUT,
321 	ICHD_MIC,
322 	ICHD_MIC2,
323 	ICHD_PCM2IN,
324 	ICHD_SPBAR,
325 	ICHD_LAST = ICHD_SPBAR
326 };
327 enum {
328 	NVD_PCMIN,
329 	NVD_PCMOUT,
330 	NVD_MIC,
331 	NVD_SPBAR,
332 	NVD_LAST = NVD_SPBAR
333 };
334 enum {
335 	ALID_PCMIN,
336 	ALID_PCMOUT,
337 	ALID_MIC,
338 	ALID_AC97SPDIFOUT,
339 	ALID_SPDIFIN,
340 	ALID_SPDIFOUT,
341 	ALID_LAST = ALID_SPDIFOUT
342 };
343 
344 #define get_ichdev(substream) (substream->runtime->private_data)
345 
346 struct ichdev {
347 	unsigned int ichd;			/* ich device number */
348 	unsigned long reg_offset;		/* offset to bmaddr */
349 	__le32 *bdbar;				/* CPU address (32bit) */
350 	unsigned int bdbar_addr;		/* PCI bus address (32bit) */
351 	struct snd_pcm_substream *substream;
352 	unsigned int physbuf;			/* physical address (32bit) */
353         unsigned int size;
354         unsigned int fragsize;
355         unsigned int fragsize1;
356         unsigned int position;
357 	unsigned int pos_shift;
358 	unsigned int last_pos;
359         int frags;
360         int lvi;
361         int lvi_frag;
362 	int civ;
363 	int ack;
364 	int ack_reload;
365 	unsigned int ack_bit;
366 	unsigned int roff_sr;
367 	unsigned int roff_picb;
368 	unsigned int int_sta_mask;		/* interrupt status mask */
369 	unsigned int ali_slot;			/* ALI DMA slot */
370 	struct ac97_pcm *pcm;
371 	int pcm_open_flag;
372 	unsigned int suspended: 1;
373 };
374 
375 struct intel8x0 {
376 	unsigned int device_type;
377 
378 	int irq;
379 
380 	void __iomem *addr;
381 	void __iomem *bmaddr;
382 
383 	struct pci_dev *pci;
384 	struct snd_card *card;
385 
386 	int pcm_devs;
387 	struct snd_pcm *pcm[6];
388 	struct ichdev ichd[6];
389 
390 	unsigned multi4: 1,
391 		 multi6: 1,
392 		 multi8 :1,
393 		 dra: 1,
394 		 smp20bit: 1;
395 	unsigned in_ac97_init: 1,
396 		 in_sdin_init: 1;
397 	unsigned in_measurement: 1;	/* during ac97 clock measurement */
398 	unsigned fix_nocache: 1; 	/* workaround for 440MX */
399 	unsigned buggy_irq: 1;		/* workaround for buggy mobos */
400 	unsigned xbox: 1;		/* workaround for Xbox AC'97 detection */
401 	unsigned buggy_semaphore: 1;	/* workaround for buggy codec semaphore */
402 	unsigned inside_vm: 1;		/* enable VM optimization */
403 
404 	int spdif_idx;	/* SPDIF BAR index; *_SPBAR or -1 if use PCMOUT */
405 	unsigned int sdm_saved;	/* SDM reg value */
406 
407 	struct snd_ac97_bus *ac97_bus;
408 	struct snd_ac97 *ac97[3];
409 	unsigned int ac97_sdin[3];
410 	unsigned int max_codecs, ncodecs;
411 	unsigned int *codec_bit;
412 	unsigned int codec_isr_bits;
413 	unsigned int codec_ready_bits;
414 
415 	spinlock_t reg_lock;
416 
417 	u32 bdbars_count;
418 	struct snd_dma_buffer bdbars;
419 	u32 int_sta_reg;		/* interrupt status register */
420 	u32 int_sta_mask;		/* interrupt status mask */
421 };
422 
423 static const struct pci_device_id snd_intel8x0_ids[] = {
424 	{ PCI_VDEVICE(INTEL, 0x2415), DEVICE_INTEL },	/* 82801AA */
425 	{ PCI_VDEVICE(INTEL, 0x2425), DEVICE_INTEL },	/* 82901AB */
426 	{ PCI_VDEVICE(INTEL, 0x2445), DEVICE_INTEL },	/* 82801BA */
427 	{ PCI_VDEVICE(INTEL, 0x2485), DEVICE_INTEL },	/* ICH3 */
428 	{ PCI_VDEVICE(INTEL, 0x24c5), DEVICE_INTEL_ICH4 }, /* ICH4 */
429 	{ PCI_VDEVICE(INTEL, 0x24d5), DEVICE_INTEL_ICH4 }, /* ICH5 */
430 	{ PCI_VDEVICE(INTEL, 0x25a6), DEVICE_INTEL_ICH4 }, /* ESB */
431 	{ PCI_VDEVICE(INTEL, 0x266e), DEVICE_INTEL_ICH4 }, /* ICH6 */
432 	{ PCI_VDEVICE(INTEL, 0x27de), DEVICE_INTEL_ICH4 }, /* ICH7 */
433 	{ PCI_VDEVICE(INTEL, 0x2698), DEVICE_INTEL_ICH4 }, /* ESB2 */
434 	{ PCI_VDEVICE(INTEL, 0x7195), DEVICE_INTEL },	/* 440MX */
435 	{ PCI_VDEVICE(SI, 0x7012), DEVICE_SIS },	/* SI7012 */
436 	{ PCI_VDEVICE(NVIDIA, 0x01b1), DEVICE_NFORCE },	/* NFORCE */
437 	{ PCI_VDEVICE(NVIDIA, 0x003a), DEVICE_NFORCE },	/* MCP04 */
438 	{ PCI_VDEVICE(NVIDIA, 0x006a), DEVICE_NFORCE },	/* NFORCE2 */
439 	{ PCI_VDEVICE(NVIDIA, 0x0059), DEVICE_NFORCE },	/* CK804 */
440 	{ PCI_VDEVICE(NVIDIA, 0x008a), DEVICE_NFORCE },	/* CK8 */
441 	{ PCI_VDEVICE(NVIDIA, 0x00da), DEVICE_NFORCE },	/* NFORCE3 */
442 	{ PCI_VDEVICE(NVIDIA, 0x00ea), DEVICE_NFORCE },	/* CK8S */
443 	{ PCI_VDEVICE(NVIDIA, 0x026b), DEVICE_NFORCE },	/* MCP51 */
444 	{ PCI_VDEVICE(AMD, 0x746d), DEVICE_INTEL },	/* AMD8111 */
445 	{ PCI_VDEVICE(AMD, 0x7445), DEVICE_INTEL },	/* AMD768 */
446 	{ PCI_VDEVICE(AL, 0x5455), DEVICE_ALI },   /* Ali5455 */
447 	{ 0, }
448 };
449 
450 MODULE_DEVICE_TABLE(pci, snd_intel8x0_ids);
451 
452 /*
453  *  Lowlevel I/O - busmaster
454  */
455 
456 static inline u8 igetbyte(struct intel8x0 *chip, u32 offset)
457 {
458 	return ioread8(chip->bmaddr + offset);
459 }
460 
461 static inline u16 igetword(struct intel8x0 *chip, u32 offset)
462 {
463 	return ioread16(chip->bmaddr + offset);
464 }
465 
466 static inline u32 igetdword(struct intel8x0 *chip, u32 offset)
467 {
468 	return ioread32(chip->bmaddr + offset);
469 }
470 
471 static inline void iputbyte(struct intel8x0 *chip, u32 offset, u8 val)
472 {
473 	iowrite8(val, chip->bmaddr + offset);
474 }
475 
476 static inline void iputword(struct intel8x0 *chip, u32 offset, u16 val)
477 {
478 	iowrite16(val, chip->bmaddr + offset);
479 }
480 
481 static inline void iputdword(struct intel8x0 *chip, u32 offset, u32 val)
482 {
483 	iowrite32(val, chip->bmaddr + offset);
484 }
485 
486 /*
487  *  Lowlevel I/O - AC'97 registers
488  */
489 
490 static inline u16 iagetword(struct intel8x0 *chip, u32 offset)
491 {
492 	return ioread16(chip->addr + offset);
493 }
494 
495 static inline void iaputword(struct intel8x0 *chip, u32 offset, u16 val)
496 {
497 	iowrite16(val, chip->addr + offset);
498 }
499 
500 /*
501  *  Basic I/O
502  */
503 
504 /*
505  * access to AC97 codec via normal i/o (for ICH and SIS7012)
506  */
507 
508 static int snd_intel8x0_codec_semaphore(struct intel8x0 *chip, unsigned int codec)
509 {
510 	int time;
511 
512 	if (codec > 2)
513 		return -EIO;
514 	if (chip->in_sdin_init) {
515 		/* we don't know the ready bit assignment at the moment */
516 		/* so we check any */
517 		codec = chip->codec_isr_bits;
518 	} else {
519 		codec = chip->codec_bit[chip->ac97_sdin[codec]];
520 	}
521 
522 	/* codec ready ? */
523 	if ((igetdword(chip, ICHREG(GLOB_STA)) & codec) == 0)
524 		return -EIO;
525 
526 	if (chip->buggy_semaphore)
527 		return 0; /* just ignore ... */
528 
529 	/* Anyone holding a semaphore for 1 msec should be shot... */
530 	time = 100;
531       	do {
532       		if (!(igetbyte(chip, ICHREG(ACC_SEMA)) & ICH_CAS))
533       			return 0;
534 		udelay(10);
535 	} while (time--);
536 
537 	/* access to some forbidden (non existent) ac97 registers will not
538 	 * reset the semaphore. So even if you don't get the semaphore, still
539 	 * continue the access. We don't need the semaphore anyway. */
540 	dev_err(chip->card->dev,
541 		"codec_semaphore: semaphore is not ready [0x%x][0x%x]\n",
542 			igetbyte(chip, ICHREG(ACC_SEMA)), igetdword(chip, ICHREG(GLOB_STA)));
543 	iagetword(chip, 0);	/* clear semaphore flag */
544 	/* I don't care about the semaphore */
545 	return -EBUSY;
546 }
547 
548 static void snd_intel8x0_codec_write(struct snd_ac97 *ac97,
549 				     unsigned short reg,
550 				     unsigned short val)
551 {
552 	struct intel8x0 *chip = ac97->private_data;
553 
554 	if (snd_intel8x0_codec_semaphore(chip, ac97->num) < 0) {
555 		if (! chip->in_ac97_init)
556 			dev_err(chip->card->dev,
557 				"codec_write %d: semaphore is not ready for register 0x%x\n",
558 				ac97->num, reg);
559 	}
560 	iaputword(chip, reg + ac97->num * 0x80, val);
561 }
562 
563 static unsigned short snd_intel8x0_codec_read(struct snd_ac97 *ac97,
564 					      unsigned short reg)
565 {
566 	struct intel8x0 *chip = ac97->private_data;
567 	unsigned short res;
568 	unsigned int tmp;
569 
570 	if (snd_intel8x0_codec_semaphore(chip, ac97->num) < 0) {
571 		if (! chip->in_ac97_init)
572 			dev_err(chip->card->dev,
573 				"codec_read %d: semaphore is not ready for register 0x%x\n",
574 				ac97->num, reg);
575 		res = 0xffff;
576 	} else {
577 		res = iagetword(chip, reg + ac97->num * 0x80);
578 		if ((tmp = igetdword(chip, ICHREG(GLOB_STA))) & ICH_RCS) {
579 			/* reset RCS and preserve other R/WC bits */
580 			iputdword(chip, ICHREG(GLOB_STA), tmp &
581 				  ~(chip->codec_ready_bits | ICH_GSCI));
582 			if (! chip->in_ac97_init)
583 				dev_err(chip->card->dev,
584 					"codec_read %d: read timeout for register 0x%x\n",
585 					ac97->num, reg);
586 			res = 0xffff;
587 		}
588 	}
589 	return res;
590 }
591 
592 static void snd_intel8x0_codec_read_test(struct intel8x0 *chip,
593 					 unsigned int codec)
594 {
595 	unsigned int tmp;
596 
597 	if (snd_intel8x0_codec_semaphore(chip, codec) >= 0) {
598 		iagetword(chip, codec * 0x80);
599 		if ((tmp = igetdword(chip, ICHREG(GLOB_STA))) & ICH_RCS) {
600 			/* reset RCS and preserve other R/WC bits */
601 			iputdword(chip, ICHREG(GLOB_STA), tmp &
602 				  ~(chip->codec_ready_bits | ICH_GSCI));
603 		}
604 	}
605 }
606 
607 /*
608  * access to AC97 for Ali5455
609  */
610 static int snd_intel8x0_ali_codec_ready(struct intel8x0 *chip, int mask)
611 {
612 	int count = 0;
613 	for (count = 0; count < 0x7f; count++) {
614 		int val = igetbyte(chip, ICHREG(ALI_CSPSR));
615 		if (val & mask)
616 			return 0;
617 	}
618 	if (! chip->in_ac97_init)
619 		dev_warn(chip->card->dev, "AC97 codec ready timeout.\n");
620 	return -EBUSY;
621 }
622 
623 static int snd_intel8x0_ali_codec_semaphore(struct intel8x0 *chip)
624 {
625 	int time = 100;
626 	if (chip->buggy_semaphore)
627 		return 0; /* just ignore ... */
628 	while (--time && (igetdword(chip, ICHREG(ALI_CAS)) & ALI_CAS_SEM_BUSY))
629 		udelay(1);
630 	if (! time && ! chip->in_ac97_init)
631 		dev_warn(chip->card->dev, "ali_codec_semaphore timeout\n");
632 	return snd_intel8x0_ali_codec_ready(chip, ALI_CSPSR_CODEC_READY);
633 }
634 
635 static unsigned short snd_intel8x0_ali_codec_read(struct snd_ac97 *ac97, unsigned short reg)
636 {
637 	struct intel8x0 *chip = ac97->private_data;
638 	unsigned short data = 0xffff;
639 
640 	if (snd_intel8x0_ali_codec_semaphore(chip))
641 		goto __err;
642 	reg |= ALI_CPR_ADDR_READ;
643 	if (ac97->num)
644 		reg |= ALI_CPR_ADDR_SECONDARY;
645 	iputword(chip, ICHREG(ALI_CPR_ADDR), reg);
646 	if (snd_intel8x0_ali_codec_ready(chip, ALI_CSPSR_READ_OK))
647 		goto __err;
648 	data = igetword(chip, ICHREG(ALI_SPR));
649  __err:
650 	return data;
651 }
652 
653 static void snd_intel8x0_ali_codec_write(struct snd_ac97 *ac97, unsigned short reg,
654 					 unsigned short val)
655 {
656 	struct intel8x0 *chip = ac97->private_data;
657 
658 	if (snd_intel8x0_ali_codec_semaphore(chip))
659 		return;
660 	iputword(chip, ICHREG(ALI_CPR), val);
661 	if (ac97->num)
662 		reg |= ALI_CPR_ADDR_SECONDARY;
663 	iputword(chip, ICHREG(ALI_CPR_ADDR), reg);
664 	snd_intel8x0_ali_codec_ready(chip, ALI_CSPSR_WRITE_OK);
665 }
666 
667 
668 /*
669  * DMA I/O
670  */
671 static void snd_intel8x0_setup_periods(struct intel8x0 *chip, struct ichdev *ichdev)
672 {
673 	int idx;
674 	__le32 *bdbar = ichdev->bdbar;
675 	unsigned long port = ichdev->reg_offset;
676 
677 	iputdword(chip, port + ICH_REG_OFF_BDBAR, ichdev->bdbar_addr);
678 	if (ichdev->size == ichdev->fragsize) {
679 		ichdev->ack_reload = ichdev->ack = 2;
680 		ichdev->fragsize1 = ichdev->fragsize >> 1;
681 		for (idx = 0; idx < (ICH_REG_LVI_MASK + 1) * 2; idx += 4) {
682 			bdbar[idx + 0] = cpu_to_le32(ichdev->physbuf);
683 			bdbar[idx + 1] = cpu_to_le32(0x80000000 | /* interrupt on completion */
684 						     ichdev->fragsize1 >> ichdev->pos_shift);
685 			bdbar[idx + 2] = cpu_to_le32(ichdev->physbuf + (ichdev->size >> 1));
686 			bdbar[idx + 3] = cpu_to_le32(0x80000000 | /* interrupt on completion */
687 						     ichdev->fragsize1 >> ichdev->pos_shift);
688 		}
689 		ichdev->frags = 2;
690 	} else {
691 		ichdev->ack_reload = ichdev->ack = 1;
692 		ichdev->fragsize1 = ichdev->fragsize;
693 		for (idx = 0; idx < (ICH_REG_LVI_MASK + 1) * 2; idx += 2) {
694 			bdbar[idx + 0] = cpu_to_le32(ichdev->physbuf +
695 						     (((idx >> 1) * ichdev->fragsize) %
696 						      ichdev->size));
697 			bdbar[idx + 1] = cpu_to_le32(0x80000000 | /* interrupt on completion */
698 						     ichdev->fragsize >> ichdev->pos_shift);
699 #if 0
700 			dev_dbg(chip->card->dev, "bdbar[%i] = 0x%x [0x%x]\n",
701 			       idx + 0, bdbar[idx + 0], bdbar[idx + 1]);
702 #endif
703 		}
704 		ichdev->frags = ichdev->size / ichdev->fragsize;
705 	}
706 	iputbyte(chip, port + ICH_REG_OFF_LVI, ichdev->lvi = ICH_REG_LVI_MASK);
707 	ichdev->civ = 0;
708 	iputbyte(chip, port + ICH_REG_OFF_CIV, 0);
709 	ichdev->lvi_frag = ICH_REG_LVI_MASK % ichdev->frags;
710 	ichdev->position = 0;
711 #if 0
712 	dev_dbg(chip->card->dev,
713 		"lvi_frag = %i, frags = %i, period_size = 0x%x, period_size1 = 0x%x\n",
714 	       ichdev->lvi_frag, ichdev->frags, ichdev->fragsize,
715 	       ichdev->fragsize1);
716 #endif
717 	/* clear interrupts */
718 	iputbyte(chip, port + ichdev->roff_sr, ICH_FIFOE | ICH_BCIS | ICH_LVBCI);
719 }
720 
721 /*
722  *  Interrupt handler
723  */
724 
725 static inline void snd_intel8x0_update(struct intel8x0 *chip, struct ichdev *ichdev)
726 {
727 	unsigned long port = ichdev->reg_offset;
728 	unsigned long flags;
729 	int status, civ, i, step;
730 	int ack = 0;
731 
732 	spin_lock_irqsave(&chip->reg_lock, flags);
733 	status = igetbyte(chip, port + ichdev->roff_sr);
734 	civ = igetbyte(chip, port + ICH_REG_OFF_CIV);
735 	if (!(status & ICH_BCIS)) {
736 		step = 0;
737 	} else if (civ == ichdev->civ) {
738 		// snd_printd("civ same %d\n", civ);
739 		step = 1;
740 		ichdev->civ++;
741 		ichdev->civ &= ICH_REG_LVI_MASK;
742 	} else {
743 		step = civ - ichdev->civ;
744 		if (step < 0)
745 			step += ICH_REG_LVI_MASK + 1;
746 		// if (step != 1)
747 		//	snd_printd("step = %d, %d -> %d\n", step, ichdev->civ, civ);
748 		ichdev->civ = civ;
749 	}
750 
751 	ichdev->position += step * ichdev->fragsize1;
752 	if (! chip->in_measurement)
753 		ichdev->position %= ichdev->size;
754 	ichdev->lvi += step;
755 	ichdev->lvi &= ICH_REG_LVI_MASK;
756 	iputbyte(chip, port + ICH_REG_OFF_LVI, ichdev->lvi);
757 	for (i = 0; i < step; i++) {
758 		ichdev->lvi_frag++;
759 		ichdev->lvi_frag %= ichdev->frags;
760 		ichdev->bdbar[ichdev->lvi * 2] = cpu_to_le32(ichdev->physbuf + ichdev->lvi_frag * ichdev->fragsize1);
761 #if 0
762 	dev_dbg(chip->card->dev,
763 		"new: bdbar[%i] = 0x%x [0x%x], prefetch = %i, all = 0x%x, 0x%x\n",
764 	       ichdev->lvi * 2, ichdev->bdbar[ichdev->lvi * 2],
765 	       ichdev->bdbar[ichdev->lvi * 2 + 1], inb(ICH_REG_OFF_PIV + port),
766 	       inl(port + 4), inb(port + ICH_REG_OFF_CR));
767 #endif
768 		if (--ichdev->ack == 0) {
769 			ichdev->ack = ichdev->ack_reload;
770 			ack = 1;
771 		}
772 	}
773 	spin_unlock_irqrestore(&chip->reg_lock, flags);
774 	if (ack && ichdev->substream) {
775 		snd_pcm_period_elapsed(ichdev->substream);
776 	}
777 	iputbyte(chip, port + ichdev->roff_sr,
778 		 status & (ICH_FIFOE | ICH_BCIS | ICH_LVBCI));
779 }
780 
781 static irqreturn_t snd_intel8x0_interrupt(int irq, void *dev_id)
782 {
783 	struct intel8x0 *chip = dev_id;
784 	struct ichdev *ichdev;
785 	unsigned int status;
786 	unsigned int i;
787 
788 	status = igetdword(chip, chip->int_sta_reg);
789 	if (status == 0xffffffff)	/* we are not yet resumed */
790 		return IRQ_NONE;
791 
792 	if ((status & chip->int_sta_mask) == 0) {
793 		if (status) {
794 			/* ack */
795 			iputdword(chip, chip->int_sta_reg, status);
796 			if (! chip->buggy_irq)
797 				status = 0;
798 		}
799 		return IRQ_RETVAL(status);
800 	}
801 
802 	for (i = 0; i < chip->bdbars_count; i++) {
803 		ichdev = &chip->ichd[i];
804 		if (status & ichdev->int_sta_mask)
805 			snd_intel8x0_update(chip, ichdev);
806 	}
807 
808 	/* ack them */
809 	iputdword(chip, chip->int_sta_reg, status & chip->int_sta_mask);
810 
811 	return IRQ_HANDLED;
812 }
813 
814 /*
815  *  PCM part
816  */
817 
818 static int snd_intel8x0_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
819 {
820 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
821 	struct ichdev *ichdev = get_ichdev(substream);
822 	unsigned char val = 0;
823 	unsigned long port = ichdev->reg_offset;
824 
825 	switch (cmd) {
826 	case SNDRV_PCM_TRIGGER_RESUME:
827 		ichdev->suspended = 0;
828 		/* fall through */
829 	case SNDRV_PCM_TRIGGER_START:
830 	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
831 		val = ICH_IOCE | ICH_STARTBM;
832 		ichdev->last_pos = ichdev->position;
833 		break;
834 	case SNDRV_PCM_TRIGGER_SUSPEND:
835 		ichdev->suspended = 1;
836 		/* fall through */
837 	case SNDRV_PCM_TRIGGER_STOP:
838 		val = 0;
839 		break;
840 	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
841 		val = ICH_IOCE;
842 		break;
843 	default:
844 		return -EINVAL;
845 	}
846 	iputbyte(chip, port + ICH_REG_OFF_CR, val);
847 	if (cmd == SNDRV_PCM_TRIGGER_STOP) {
848 		/* wait until DMA stopped */
849 		while (!(igetbyte(chip, port + ichdev->roff_sr) & ICH_DCH)) ;
850 		/* reset whole DMA things */
851 		iputbyte(chip, port + ICH_REG_OFF_CR, ICH_RESETREGS);
852 	}
853 	return 0;
854 }
855 
856 static int snd_intel8x0_ali_trigger(struct snd_pcm_substream *substream, int cmd)
857 {
858 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
859 	struct ichdev *ichdev = get_ichdev(substream);
860 	unsigned long port = ichdev->reg_offset;
861 	static int fiforeg[] = {
862 		ICHREG(ALI_FIFOCR1), ICHREG(ALI_FIFOCR2), ICHREG(ALI_FIFOCR3)
863 	};
864 	unsigned int val, fifo;
865 
866 	val = igetdword(chip, ICHREG(ALI_DMACR));
867 	switch (cmd) {
868 	case SNDRV_PCM_TRIGGER_RESUME:
869 		ichdev->suspended = 0;
870 		/* fall through */
871 	case SNDRV_PCM_TRIGGER_START:
872 	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
873 		if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
874 			/* clear FIFO for synchronization of channels */
875 			fifo = igetdword(chip, fiforeg[ichdev->ali_slot / 4]);
876 			fifo &= ~(0xff << (ichdev->ali_slot % 4));
877 			fifo |= 0x83 << (ichdev->ali_slot % 4);
878 			iputdword(chip, fiforeg[ichdev->ali_slot / 4], fifo);
879 		}
880 		iputbyte(chip, port + ICH_REG_OFF_CR, ICH_IOCE);
881 		val &= ~(1 << (ichdev->ali_slot + 16)); /* clear PAUSE flag */
882 		/* start DMA */
883 		iputdword(chip, ICHREG(ALI_DMACR), val | (1 << ichdev->ali_slot));
884 		break;
885 	case SNDRV_PCM_TRIGGER_SUSPEND:
886 		ichdev->suspended = 1;
887 		/* fall through */
888 	case SNDRV_PCM_TRIGGER_STOP:
889 	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
890 		/* pause */
891 		iputdword(chip, ICHREG(ALI_DMACR), val | (1 << (ichdev->ali_slot + 16)));
892 		iputbyte(chip, port + ICH_REG_OFF_CR, 0);
893 		while (igetbyte(chip, port + ICH_REG_OFF_CR))
894 			;
895 		if (cmd == SNDRV_PCM_TRIGGER_PAUSE_PUSH)
896 			break;
897 		/* reset whole DMA things */
898 		iputbyte(chip, port + ICH_REG_OFF_CR, ICH_RESETREGS);
899 		/* clear interrupts */
900 		iputbyte(chip, port + ICH_REG_OFF_SR,
901 			 igetbyte(chip, port + ICH_REG_OFF_SR) | 0x1e);
902 		iputdword(chip, ICHREG(ALI_INTERRUPTSR),
903 			  igetdword(chip, ICHREG(ALI_INTERRUPTSR)) & ichdev->int_sta_mask);
904 		break;
905 	default:
906 		return -EINVAL;
907 	}
908 	return 0;
909 }
910 
911 static int snd_intel8x0_hw_params(struct snd_pcm_substream *substream,
912 				  struct snd_pcm_hw_params *hw_params)
913 {
914 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
915 	struct ichdev *ichdev = get_ichdev(substream);
916 	int dbl = params_rate(hw_params) > 48000;
917 	int err;
918 
919 	err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
920 	if (err < 0)
921 		return err;
922 	if (ichdev->pcm_open_flag) {
923 		snd_ac97_pcm_close(ichdev->pcm);
924 		ichdev->pcm_open_flag = 0;
925 	}
926 	err = snd_ac97_pcm_open(ichdev->pcm, params_rate(hw_params),
927 				params_channels(hw_params),
928 				ichdev->pcm->r[dbl].slots);
929 	if (err >= 0) {
930 		ichdev->pcm_open_flag = 1;
931 		/* Force SPDIF setting */
932 		if (ichdev->ichd == ICHD_PCMOUT && chip->spdif_idx < 0)
933 			snd_ac97_set_rate(ichdev->pcm->r[0].codec[0], AC97_SPDIF,
934 					  params_rate(hw_params));
935 	}
936 	return err;
937 }
938 
939 static int snd_intel8x0_hw_free(struct snd_pcm_substream *substream)
940 {
941 	struct ichdev *ichdev = get_ichdev(substream);
942 
943 	if (ichdev->pcm_open_flag) {
944 		snd_ac97_pcm_close(ichdev->pcm);
945 		ichdev->pcm_open_flag = 0;
946 	}
947 	return snd_pcm_lib_free_pages(substream);
948 }
949 
950 static void snd_intel8x0_setup_pcm_out(struct intel8x0 *chip,
951 				       struct snd_pcm_runtime *runtime)
952 {
953 	unsigned int cnt;
954 	int dbl = runtime->rate > 48000;
955 
956 	spin_lock_irq(&chip->reg_lock);
957 	switch (chip->device_type) {
958 	case DEVICE_ALI:
959 		cnt = igetdword(chip, ICHREG(ALI_SCR));
960 		cnt &= ~ICH_ALI_SC_PCM_246_MASK;
961 		if (runtime->channels == 4 || dbl)
962 			cnt |= ICH_ALI_SC_PCM_4;
963 		else if (runtime->channels == 6)
964 			cnt |= ICH_ALI_SC_PCM_6;
965 		iputdword(chip, ICHREG(ALI_SCR), cnt);
966 		break;
967 	case DEVICE_SIS:
968 		cnt = igetdword(chip, ICHREG(GLOB_CNT));
969 		cnt &= ~ICH_SIS_PCM_246_MASK;
970 		if (runtime->channels == 4 || dbl)
971 			cnt |= ICH_SIS_PCM_4;
972 		else if (runtime->channels == 6)
973 			cnt |= ICH_SIS_PCM_6;
974 		iputdword(chip, ICHREG(GLOB_CNT), cnt);
975 		break;
976 	default:
977 		cnt = igetdword(chip, ICHREG(GLOB_CNT));
978 		cnt &= ~(ICH_PCM_246_MASK | ICH_PCM_20BIT);
979 		if (runtime->channels == 4 || dbl)
980 			cnt |= ICH_PCM_4;
981 		else if (runtime->channels == 6)
982 			cnt |= ICH_PCM_6;
983 		else if (runtime->channels == 8)
984 			cnt |= ICH_PCM_8;
985 		if (chip->device_type == DEVICE_NFORCE) {
986 			/* reset to 2ch once to keep the 6 channel data in alignment,
987 			 * to start from Front Left always
988 			 */
989 			if (cnt & ICH_PCM_246_MASK) {
990 				iputdword(chip, ICHREG(GLOB_CNT), cnt & ~ICH_PCM_246_MASK);
991 				spin_unlock_irq(&chip->reg_lock);
992 				msleep(50); /* grrr... */
993 				spin_lock_irq(&chip->reg_lock);
994 			}
995 		} else if (chip->device_type == DEVICE_INTEL_ICH4) {
996 			if (runtime->sample_bits > 16)
997 				cnt |= ICH_PCM_20BIT;
998 		}
999 		iputdword(chip, ICHREG(GLOB_CNT), cnt);
1000 		break;
1001 	}
1002 	spin_unlock_irq(&chip->reg_lock);
1003 }
1004 
1005 static int snd_intel8x0_pcm_prepare(struct snd_pcm_substream *substream)
1006 {
1007 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1008 	struct snd_pcm_runtime *runtime = substream->runtime;
1009 	struct ichdev *ichdev = get_ichdev(substream);
1010 
1011 	ichdev->physbuf = runtime->dma_addr;
1012 	ichdev->size = snd_pcm_lib_buffer_bytes(substream);
1013 	ichdev->fragsize = snd_pcm_lib_period_bytes(substream);
1014 	if (ichdev->ichd == ICHD_PCMOUT) {
1015 		snd_intel8x0_setup_pcm_out(chip, runtime);
1016 		if (chip->device_type == DEVICE_INTEL_ICH4)
1017 			ichdev->pos_shift = (runtime->sample_bits > 16) ? 2 : 1;
1018 	}
1019 	snd_intel8x0_setup_periods(chip, ichdev);
1020 	return 0;
1021 }
1022 
1023 static snd_pcm_uframes_t snd_intel8x0_pcm_pointer(struct snd_pcm_substream *substream)
1024 {
1025 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1026 	struct ichdev *ichdev = get_ichdev(substream);
1027 	size_t ptr1, ptr;
1028 	int civ, timeout = 10;
1029 	unsigned int position;
1030 
1031 	spin_lock(&chip->reg_lock);
1032 	do {
1033 		civ = igetbyte(chip, ichdev->reg_offset + ICH_REG_OFF_CIV);
1034 		ptr1 = igetword(chip, ichdev->reg_offset + ichdev->roff_picb);
1035 		position = ichdev->position;
1036 		if (ptr1 == 0) {
1037 			udelay(10);
1038 			continue;
1039 		}
1040 		if (civ != igetbyte(chip, ichdev->reg_offset + ICH_REG_OFF_CIV))
1041 			continue;
1042 
1043 		/* IO read operation is very expensive inside virtual machine
1044 		 * as it is emulated. The probability that subsequent PICB read
1045 		 * will return different result is high enough to loop till
1046 		 * timeout here.
1047 		 * Same CIV is strict enough condition to be sure that PICB
1048 		 * is valid inside VM on emulated card. */
1049 		if (chip->inside_vm)
1050 			break;
1051 		if (ptr1 == igetword(chip, ichdev->reg_offset + ichdev->roff_picb))
1052 			break;
1053 	} while (timeout--);
1054 	ptr = ichdev->last_pos;
1055 	if (ptr1 != 0) {
1056 		ptr1 <<= ichdev->pos_shift;
1057 		ptr = ichdev->fragsize1 - ptr1;
1058 		ptr += position;
1059 		if (ptr < ichdev->last_pos) {
1060 			unsigned int pos_base, last_base;
1061 			pos_base = position / ichdev->fragsize1;
1062 			last_base = ichdev->last_pos / ichdev->fragsize1;
1063 			/* another sanity check; ptr1 can go back to full
1064 			 * before the base position is updated
1065 			 */
1066 			if (pos_base == last_base)
1067 				ptr = ichdev->last_pos;
1068 		}
1069 	}
1070 	ichdev->last_pos = ptr;
1071 	spin_unlock(&chip->reg_lock);
1072 	if (ptr >= ichdev->size)
1073 		return 0;
1074 	return bytes_to_frames(substream->runtime, ptr);
1075 }
1076 
1077 static const struct snd_pcm_hardware snd_intel8x0_stream =
1078 {
1079 	.info =			(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1080 				 SNDRV_PCM_INFO_BLOCK_TRANSFER |
1081 				 SNDRV_PCM_INFO_MMAP_VALID |
1082 				 SNDRV_PCM_INFO_PAUSE |
1083 				 SNDRV_PCM_INFO_RESUME),
1084 	.formats =		SNDRV_PCM_FMTBIT_S16_LE,
1085 	.rates =		SNDRV_PCM_RATE_48000,
1086 	.rate_min =		48000,
1087 	.rate_max =		48000,
1088 	.channels_min =		2,
1089 	.channels_max =		2,
1090 	.buffer_bytes_max =	128 * 1024,
1091 	.period_bytes_min =	32,
1092 	.period_bytes_max =	128 * 1024,
1093 	.periods_min =		1,
1094 	.periods_max =		1024,
1095 	.fifo_size =		0,
1096 };
1097 
1098 static const unsigned int channels4[] = {
1099 	2, 4,
1100 };
1101 
1102 static const struct snd_pcm_hw_constraint_list hw_constraints_channels4 = {
1103 	.count = ARRAY_SIZE(channels4),
1104 	.list = channels4,
1105 	.mask = 0,
1106 };
1107 
1108 static const unsigned int channels6[] = {
1109 	2, 4, 6,
1110 };
1111 
1112 static const struct snd_pcm_hw_constraint_list hw_constraints_channels6 = {
1113 	.count = ARRAY_SIZE(channels6),
1114 	.list = channels6,
1115 	.mask = 0,
1116 };
1117 
1118 static const unsigned int channels8[] = {
1119 	2, 4, 6, 8,
1120 };
1121 
1122 static const struct snd_pcm_hw_constraint_list hw_constraints_channels8 = {
1123 	.count = ARRAY_SIZE(channels8),
1124 	.list = channels8,
1125 	.mask = 0,
1126 };
1127 
1128 static int snd_intel8x0_pcm_open(struct snd_pcm_substream *substream, struct ichdev *ichdev)
1129 {
1130 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1131 	struct snd_pcm_runtime *runtime = substream->runtime;
1132 	int err;
1133 
1134 	ichdev->substream = substream;
1135 	runtime->hw = snd_intel8x0_stream;
1136 	runtime->hw.rates = ichdev->pcm->rates;
1137 	snd_pcm_limit_hw_rates(runtime);
1138 	if (chip->device_type == DEVICE_SIS) {
1139 		runtime->hw.buffer_bytes_max = 64*1024;
1140 		runtime->hw.period_bytes_max = 64*1024;
1141 	}
1142 	if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
1143 		return err;
1144 	runtime->private_data = ichdev;
1145 	return 0;
1146 }
1147 
1148 static int snd_intel8x0_playback_open(struct snd_pcm_substream *substream)
1149 {
1150 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1151 	struct snd_pcm_runtime *runtime = substream->runtime;
1152 	int err;
1153 
1154 	err = snd_intel8x0_pcm_open(substream, &chip->ichd[ICHD_PCMOUT]);
1155 	if (err < 0)
1156 		return err;
1157 
1158 	if (chip->multi8) {
1159 		runtime->hw.channels_max = 8;
1160 		snd_pcm_hw_constraint_list(runtime, 0,
1161 						SNDRV_PCM_HW_PARAM_CHANNELS,
1162 						&hw_constraints_channels8);
1163 	} else if (chip->multi6) {
1164 		runtime->hw.channels_max = 6;
1165 		snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
1166 					   &hw_constraints_channels6);
1167 	} else if (chip->multi4) {
1168 		runtime->hw.channels_max = 4;
1169 		snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
1170 					   &hw_constraints_channels4);
1171 	}
1172 	if (chip->dra) {
1173 		snd_ac97_pcm_double_rate_rules(runtime);
1174 	}
1175 	if (chip->smp20bit) {
1176 		runtime->hw.formats |= SNDRV_PCM_FMTBIT_S32_LE;
1177 		snd_pcm_hw_constraint_msbits(runtime, 0, 32, 20);
1178 	}
1179 	return 0;
1180 }
1181 
1182 static int snd_intel8x0_playback_close(struct snd_pcm_substream *substream)
1183 {
1184 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1185 
1186 	chip->ichd[ICHD_PCMOUT].substream = NULL;
1187 	return 0;
1188 }
1189 
1190 static int snd_intel8x0_capture_open(struct snd_pcm_substream *substream)
1191 {
1192 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1193 
1194 	return snd_intel8x0_pcm_open(substream, &chip->ichd[ICHD_PCMIN]);
1195 }
1196 
1197 static int snd_intel8x0_capture_close(struct snd_pcm_substream *substream)
1198 {
1199 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1200 
1201 	chip->ichd[ICHD_PCMIN].substream = NULL;
1202 	return 0;
1203 }
1204 
1205 static int snd_intel8x0_mic_open(struct snd_pcm_substream *substream)
1206 {
1207 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1208 
1209 	return snd_intel8x0_pcm_open(substream, &chip->ichd[ICHD_MIC]);
1210 }
1211 
1212 static int snd_intel8x0_mic_close(struct snd_pcm_substream *substream)
1213 {
1214 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1215 
1216 	chip->ichd[ICHD_MIC].substream = NULL;
1217 	return 0;
1218 }
1219 
1220 static int snd_intel8x0_mic2_open(struct snd_pcm_substream *substream)
1221 {
1222 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1223 
1224 	return snd_intel8x0_pcm_open(substream, &chip->ichd[ICHD_MIC2]);
1225 }
1226 
1227 static int snd_intel8x0_mic2_close(struct snd_pcm_substream *substream)
1228 {
1229 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1230 
1231 	chip->ichd[ICHD_MIC2].substream = NULL;
1232 	return 0;
1233 }
1234 
1235 static int snd_intel8x0_capture2_open(struct snd_pcm_substream *substream)
1236 {
1237 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1238 
1239 	return snd_intel8x0_pcm_open(substream, &chip->ichd[ICHD_PCM2IN]);
1240 }
1241 
1242 static int snd_intel8x0_capture2_close(struct snd_pcm_substream *substream)
1243 {
1244 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1245 
1246 	chip->ichd[ICHD_PCM2IN].substream = NULL;
1247 	return 0;
1248 }
1249 
1250 static int snd_intel8x0_spdif_open(struct snd_pcm_substream *substream)
1251 {
1252 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1253 	int idx = chip->device_type == DEVICE_NFORCE ? NVD_SPBAR : ICHD_SPBAR;
1254 
1255 	return snd_intel8x0_pcm_open(substream, &chip->ichd[idx]);
1256 }
1257 
1258 static int snd_intel8x0_spdif_close(struct snd_pcm_substream *substream)
1259 {
1260 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1261 	int idx = chip->device_type == DEVICE_NFORCE ? NVD_SPBAR : ICHD_SPBAR;
1262 
1263 	chip->ichd[idx].substream = NULL;
1264 	return 0;
1265 }
1266 
1267 static int snd_intel8x0_ali_ac97spdifout_open(struct snd_pcm_substream *substream)
1268 {
1269 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1270 	unsigned int val;
1271 
1272 	spin_lock_irq(&chip->reg_lock);
1273 	val = igetdword(chip, ICHREG(ALI_INTERFACECR));
1274 	val |= ICH_ALI_IF_AC97SP;
1275 	iputdword(chip, ICHREG(ALI_INTERFACECR), val);
1276 	/* also needs to set ALI_SC_CODEC_SPDF correctly */
1277 	spin_unlock_irq(&chip->reg_lock);
1278 
1279 	return snd_intel8x0_pcm_open(substream, &chip->ichd[ALID_AC97SPDIFOUT]);
1280 }
1281 
1282 static int snd_intel8x0_ali_ac97spdifout_close(struct snd_pcm_substream *substream)
1283 {
1284 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1285 	unsigned int val;
1286 
1287 	chip->ichd[ALID_AC97SPDIFOUT].substream = NULL;
1288 	spin_lock_irq(&chip->reg_lock);
1289 	val = igetdword(chip, ICHREG(ALI_INTERFACECR));
1290 	val &= ~ICH_ALI_IF_AC97SP;
1291 	iputdword(chip, ICHREG(ALI_INTERFACECR), val);
1292 	spin_unlock_irq(&chip->reg_lock);
1293 
1294 	return 0;
1295 }
1296 
1297 #if 0 // NYI
1298 static int snd_intel8x0_ali_spdifin_open(struct snd_pcm_substream *substream)
1299 {
1300 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1301 
1302 	return snd_intel8x0_pcm_open(substream, &chip->ichd[ALID_SPDIFIN]);
1303 }
1304 
1305 static int snd_intel8x0_ali_spdifin_close(struct snd_pcm_substream *substream)
1306 {
1307 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1308 
1309 	chip->ichd[ALID_SPDIFIN].substream = NULL;
1310 	return 0;
1311 }
1312 
1313 static int snd_intel8x0_ali_spdifout_open(struct snd_pcm_substream *substream)
1314 {
1315 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1316 
1317 	return snd_intel8x0_pcm_open(substream, &chip->ichd[ALID_SPDIFOUT]);
1318 }
1319 
1320 static int snd_intel8x0_ali_spdifout_close(struct snd_pcm_substream *substream)
1321 {
1322 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1323 
1324 	chip->ichd[ALID_SPDIFOUT].substream = NULL;
1325 	return 0;
1326 }
1327 #endif
1328 
1329 static const struct snd_pcm_ops snd_intel8x0_playback_ops = {
1330 	.open =		snd_intel8x0_playback_open,
1331 	.close =	snd_intel8x0_playback_close,
1332 	.ioctl =	snd_pcm_lib_ioctl,
1333 	.hw_params =	snd_intel8x0_hw_params,
1334 	.hw_free =	snd_intel8x0_hw_free,
1335 	.prepare =	snd_intel8x0_pcm_prepare,
1336 	.trigger =	snd_intel8x0_pcm_trigger,
1337 	.pointer =	snd_intel8x0_pcm_pointer,
1338 };
1339 
1340 static const struct snd_pcm_ops snd_intel8x0_capture_ops = {
1341 	.open =		snd_intel8x0_capture_open,
1342 	.close =	snd_intel8x0_capture_close,
1343 	.ioctl =	snd_pcm_lib_ioctl,
1344 	.hw_params =	snd_intel8x0_hw_params,
1345 	.hw_free =	snd_intel8x0_hw_free,
1346 	.prepare =	snd_intel8x0_pcm_prepare,
1347 	.trigger =	snd_intel8x0_pcm_trigger,
1348 	.pointer =	snd_intel8x0_pcm_pointer,
1349 };
1350 
1351 static const struct snd_pcm_ops snd_intel8x0_capture_mic_ops = {
1352 	.open =		snd_intel8x0_mic_open,
1353 	.close =	snd_intel8x0_mic_close,
1354 	.ioctl =	snd_pcm_lib_ioctl,
1355 	.hw_params =	snd_intel8x0_hw_params,
1356 	.hw_free =	snd_intel8x0_hw_free,
1357 	.prepare =	snd_intel8x0_pcm_prepare,
1358 	.trigger =	snd_intel8x0_pcm_trigger,
1359 	.pointer =	snd_intel8x0_pcm_pointer,
1360 };
1361 
1362 static const struct snd_pcm_ops snd_intel8x0_capture_mic2_ops = {
1363 	.open =		snd_intel8x0_mic2_open,
1364 	.close =	snd_intel8x0_mic2_close,
1365 	.ioctl =	snd_pcm_lib_ioctl,
1366 	.hw_params =	snd_intel8x0_hw_params,
1367 	.hw_free =	snd_intel8x0_hw_free,
1368 	.prepare =	snd_intel8x0_pcm_prepare,
1369 	.trigger =	snd_intel8x0_pcm_trigger,
1370 	.pointer =	snd_intel8x0_pcm_pointer,
1371 };
1372 
1373 static const struct snd_pcm_ops snd_intel8x0_capture2_ops = {
1374 	.open =		snd_intel8x0_capture2_open,
1375 	.close =	snd_intel8x0_capture2_close,
1376 	.ioctl =	snd_pcm_lib_ioctl,
1377 	.hw_params =	snd_intel8x0_hw_params,
1378 	.hw_free =	snd_intel8x0_hw_free,
1379 	.prepare =	snd_intel8x0_pcm_prepare,
1380 	.trigger =	snd_intel8x0_pcm_trigger,
1381 	.pointer =	snd_intel8x0_pcm_pointer,
1382 };
1383 
1384 static const struct snd_pcm_ops snd_intel8x0_spdif_ops = {
1385 	.open =		snd_intel8x0_spdif_open,
1386 	.close =	snd_intel8x0_spdif_close,
1387 	.ioctl =	snd_pcm_lib_ioctl,
1388 	.hw_params =	snd_intel8x0_hw_params,
1389 	.hw_free =	snd_intel8x0_hw_free,
1390 	.prepare =	snd_intel8x0_pcm_prepare,
1391 	.trigger =	snd_intel8x0_pcm_trigger,
1392 	.pointer =	snd_intel8x0_pcm_pointer,
1393 };
1394 
1395 static const struct snd_pcm_ops snd_intel8x0_ali_playback_ops = {
1396 	.open =		snd_intel8x0_playback_open,
1397 	.close =	snd_intel8x0_playback_close,
1398 	.ioctl =	snd_pcm_lib_ioctl,
1399 	.hw_params =	snd_intel8x0_hw_params,
1400 	.hw_free =	snd_intel8x0_hw_free,
1401 	.prepare =	snd_intel8x0_pcm_prepare,
1402 	.trigger =	snd_intel8x0_ali_trigger,
1403 	.pointer =	snd_intel8x0_pcm_pointer,
1404 };
1405 
1406 static const struct snd_pcm_ops snd_intel8x0_ali_capture_ops = {
1407 	.open =		snd_intel8x0_capture_open,
1408 	.close =	snd_intel8x0_capture_close,
1409 	.ioctl =	snd_pcm_lib_ioctl,
1410 	.hw_params =	snd_intel8x0_hw_params,
1411 	.hw_free =	snd_intel8x0_hw_free,
1412 	.prepare =	snd_intel8x0_pcm_prepare,
1413 	.trigger =	snd_intel8x0_ali_trigger,
1414 	.pointer =	snd_intel8x0_pcm_pointer,
1415 };
1416 
1417 static const struct snd_pcm_ops snd_intel8x0_ali_capture_mic_ops = {
1418 	.open =		snd_intel8x0_mic_open,
1419 	.close =	snd_intel8x0_mic_close,
1420 	.ioctl =	snd_pcm_lib_ioctl,
1421 	.hw_params =	snd_intel8x0_hw_params,
1422 	.hw_free =	snd_intel8x0_hw_free,
1423 	.prepare =	snd_intel8x0_pcm_prepare,
1424 	.trigger =	snd_intel8x0_ali_trigger,
1425 	.pointer =	snd_intel8x0_pcm_pointer,
1426 };
1427 
1428 static const struct snd_pcm_ops snd_intel8x0_ali_ac97spdifout_ops = {
1429 	.open =		snd_intel8x0_ali_ac97spdifout_open,
1430 	.close =	snd_intel8x0_ali_ac97spdifout_close,
1431 	.ioctl =	snd_pcm_lib_ioctl,
1432 	.hw_params =	snd_intel8x0_hw_params,
1433 	.hw_free =	snd_intel8x0_hw_free,
1434 	.prepare =	snd_intel8x0_pcm_prepare,
1435 	.trigger =	snd_intel8x0_ali_trigger,
1436 	.pointer =	snd_intel8x0_pcm_pointer,
1437 };
1438 
1439 #if 0 // NYI
1440 static struct snd_pcm_ops snd_intel8x0_ali_spdifin_ops = {
1441 	.open =		snd_intel8x0_ali_spdifin_open,
1442 	.close =	snd_intel8x0_ali_spdifin_close,
1443 	.ioctl =	snd_pcm_lib_ioctl,
1444 	.hw_params =	snd_intel8x0_hw_params,
1445 	.hw_free =	snd_intel8x0_hw_free,
1446 	.prepare =	snd_intel8x0_pcm_prepare,
1447 	.trigger =	snd_intel8x0_pcm_trigger,
1448 	.pointer =	snd_intel8x0_pcm_pointer,
1449 };
1450 
1451 static struct snd_pcm_ops snd_intel8x0_ali_spdifout_ops = {
1452 	.open =		snd_intel8x0_ali_spdifout_open,
1453 	.close =	snd_intel8x0_ali_spdifout_close,
1454 	.ioctl =	snd_pcm_lib_ioctl,
1455 	.hw_params =	snd_intel8x0_hw_params,
1456 	.hw_free =	snd_intel8x0_hw_free,
1457 	.prepare =	snd_intel8x0_pcm_prepare,
1458 	.trigger =	snd_intel8x0_pcm_trigger,
1459 	.pointer =	snd_intel8x0_pcm_pointer,
1460 };
1461 #endif // NYI
1462 
1463 struct ich_pcm_table {
1464 	char *suffix;
1465 	const struct snd_pcm_ops *playback_ops;
1466 	const struct snd_pcm_ops *capture_ops;
1467 	size_t prealloc_size;
1468 	size_t prealloc_max_size;
1469 	int ac97_idx;
1470 };
1471 
1472 #define intel8x0_dma_type(chip) \
1473 	((chip)->fix_nocache ? SNDRV_DMA_TYPE_DEV_UC : SNDRV_DMA_TYPE_DEV)
1474 
1475 static int snd_intel8x0_pcm1(struct intel8x0 *chip, int device,
1476 			     struct ich_pcm_table *rec)
1477 {
1478 	struct snd_pcm *pcm;
1479 	int err;
1480 	char name[32];
1481 
1482 	if (rec->suffix)
1483 		sprintf(name, "Intel ICH - %s", rec->suffix);
1484 	else
1485 		strcpy(name, "Intel ICH");
1486 	err = snd_pcm_new(chip->card, name, device,
1487 			  rec->playback_ops ? 1 : 0,
1488 			  rec->capture_ops ? 1 : 0, &pcm);
1489 	if (err < 0)
1490 		return err;
1491 
1492 	if (rec->playback_ops)
1493 		snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, rec->playback_ops);
1494 	if (rec->capture_ops)
1495 		snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, rec->capture_ops);
1496 
1497 	pcm->private_data = chip;
1498 	pcm->info_flags = 0;
1499 	if (rec->suffix)
1500 		sprintf(pcm->name, "%s - %s", chip->card->shortname, rec->suffix);
1501 	else
1502 		strcpy(pcm->name, chip->card->shortname);
1503 	chip->pcm[device] = pcm;
1504 
1505 	snd_pcm_lib_preallocate_pages_for_all(pcm, intel8x0_dma_type(chip),
1506 					      snd_dma_pci_data(chip->pci),
1507 					      rec->prealloc_size, rec->prealloc_max_size);
1508 
1509 	if (rec->playback_ops &&
1510 	    rec->playback_ops->open == snd_intel8x0_playback_open) {
1511 		struct snd_pcm_chmap *chmap;
1512 		int chs = 2;
1513 		if (chip->multi8)
1514 			chs = 8;
1515 		else if (chip->multi6)
1516 			chs = 6;
1517 		else if (chip->multi4)
1518 			chs = 4;
1519 		err = snd_pcm_add_chmap_ctls(pcm, SNDRV_PCM_STREAM_PLAYBACK,
1520 					     snd_pcm_alt_chmaps, chs, 0,
1521 					     &chmap);
1522 		if (err < 0)
1523 			return err;
1524 		chmap->channel_mask = SND_PCM_CHMAP_MASK_2468;
1525 		chip->ac97[0]->chmaps[SNDRV_PCM_STREAM_PLAYBACK] = chmap;
1526 	}
1527 
1528 	return 0;
1529 }
1530 
1531 static struct ich_pcm_table intel_pcms[] = {
1532 	{
1533 		.playback_ops = &snd_intel8x0_playback_ops,
1534 		.capture_ops = &snd_intel8x0_capture_ops,
1535 		.prealloc_size = 64 * 1024,
1536 		.prealloc_max_size = 128 * 1024,
1537 	},
1538 	{
1539 		.suffix = "MIC ADC",
1540 		.capture_ops = &snd_intel8x0_capture_mic_ops,
1541 		.prealloc_size = 0,
1542 		.prealloc_max_size = 128 * 1024,
1543 		.ac97_idx = ICHD_MIC,
1544 	},
1545 	{
1546 		.suffix = "MIC2 ADC",
1547 		.capture_ops = &snd_intel8x0_capture_mic2_ops,
1548 		.prealloc_size = 0,
1549 		.prealloc_max_size = 128 * 1024,
1550 		.ac97_idx = ICHD_MIC2,
1551 	},
1552 	{
1553 		.suffix = "ADC2",
1554 		.capture_ops = &snd_intel8x0_capture2_ops,
1555 		.prealloc_size = 0,
1556 		.prealloc_max_size = 128 * 1024,
1557 		.ac97_idx = ICHD_PCM2IN,
1558 	},
1559 	{
1560 		.suffix = "IEC958",
1561 		.playback_ops = &snd_intel8x0_spdif_ops,
1562 		.prealloc_size = 64 * 1024,
1563 		.prealloc_max_size = 128 * 1024,
1564 		.ac97_idx = ICHD_SPBAR,
1565 	},
1566 };
1567 
1568 static struct ich_pcm_table nforce_pcms[] = {
1569 	{
1570 		.playback_ops = &snd_intel8x0_playback_ops,
1571 		.capture_ops = &snd_intel8x0_capture_ops,
1572 		.prealloc_size = 64 * 1024,
1573 		.prealloc_max_size = 128 * 1024,
1574 	},
1575 	{
1576 		.suffix = "MIC ADC",
1577 		.capture_ops = &snd_intel8x0_capture_mic_ops,
1578 		.prealloc_size = 0,
1579 		.prealloc_max_size = 128 * 1024,
1580 		.ac97_idx = NVD_MIC,
1581 	},
1582 	{
1583 		.suffix = "IEC958",
1584 		.playback_ops = &snd_intel8x0_spdif_ops,
1585 		.prealloc_size = 64 * 1024,
1586 		.prealloc_max_size = 128 * 1024,
1587 		.ac97_idx = NVD_SPBAR,
1588 	},
1589 };
1590 
1591 static struct ich_pcm_table ali_pcms[] = {
1592 	{
1593 		.playback_ops = &snd_intel8x0_ali_playback_ops,
1594 		.capture_ops = &snd_intel8x0_ali_capture_ops,
1595 		.prealloc_size = 64 * 1024,
1596 		.prealloc_max_size = 128 * 1024,
1597 	},
1598 	{
1599 		.suffix = "MIC ADC",
1600 		.capture_ops = &snd_intel8x0_ali_capture_mic_ops,
1601 		.prealloc_size = 0,
1602 		.prealloc_max_size = 128 * 1024,
1603 		.ac97_idx = ALID_MIC,
1604 	},
1605 	{
1606 		.suffix = "IEC958",
1607 		.playback_ops = &snd_intel8x0_ali_ac97spdifout_ops,
1608 		/* .capture_ops = &snd_intel8x0_ali_spdifin_ops, */
1609 		.prealloc_size = 64 * 1024,
1610 		.prealloc_max_size = 128 * 1024,
1611 		.ac97_idx = ALID_AC97SPDIFOUT,
1612 	},
1613 #if 0 // NYI
1614 	{
1615 		.suffix = "HW IEC958",
1616 		.playback_ops = &snd_intel8x0_ali_spdifout_ops,
1617 		.prealloc_size = 64 * 1024,
1618 		.prealloc_max_size = 128 * 1024,
1619 	},
1620 #endif
1621 };
1622 
1623 static int snd_intel8x0_pcm(struct intel8x0 *chip)
1624 {
1625 	int i, tblsize, device, err;
1626 	struct ich_pcm_table *tbl, *rec;
1627 
1628 	switch (chip->device_type) {
1629 	case DEVICE_INTEL_ICH4:
1630 		tbl = intel_pcms;
1631 		tblsize = ARRAY_SIZE(intel_pcms);
1632 		if (spdif_aclink)
1633 			tblsize--;
1634 		break;
1635 	case DEVICE_NFORCE:
1636 		tbl = nforce_pcms;
1637 		tblsize = ARRAY_SIZE(nforce_pcms);
1638 		if (spdif_aclink)
1639 			tblsize--;
1640 		break;
1641 	case DEVICE_ALI:
1642 		tbl = ali_pcms;
1643 		tblsize = ARRAY_SIZE(ali_pcms);
1644 		break;
1645 	default:
1646 		tbl = intel_pcms;
1647 		tblsize = 2;
1648 		break;
1649 	}
1650 
1651 	device = 0;
1652 	for (i = 0; i < tblsize; i++) {
1653 		rec = tbl + i;
1654 		if (i > 0 && rec->ac97_idx) {
1655 			/* activate PCM only when associated AC'97 codec */
1656 			if (! chip->ichd[rec->ac97_idx].pcm)
1657 				continue;
1658 		}
1659 		err = snd_intel8x0_pcm1(chip, device, rec);
1660 		if (err < 0)
1661 			return err;
1662 		device++;
1663 	}
1664 
1665 	chip->pcm_devs = device;
1666 	return 0;
1667 }
1668 
1669 
1670 /*
1671  *  Mixer part
1672  */
1673 
1674 static void snd_intel8x0_mixer_free_ac97_bus(struct snd_ac97_bus *bus)
1675 {
1676 	struct intel8x0 *chip = bus->private_data;
1677 	chip->ac97_bus = NULL;
1678 }
1679 
1680 static void snd_intel8x0_mixer_free_ac97(struct snd_ac97 *ac97)
1681 {
1682 	struct intel8x0 *chip = ac97->private_data;
1683 	chip->ac97[ac97->num] = NULL;
1684 }
1685 
1686 static const struct ac97_pcm ac97_pcm_defs[] = {
1687 	/* front PCM */
1688 	{
1689 		.exclusive = 1,
1690 		.r = {	{
1691 				.slots = (1 << AC97_SLOT_PCM_LEFT) |
1692 					 (1 << AC97_SLOT_PCM_RIGHT) |
1693 					 (1 << AC97_SLOT_PCM_CENTER) |
1694 					 (1 << AC97_SLOT_PCM_SLEFT) |
1695 					 (1 << AC97_SLOT_PCM_SRIGHT) |
1696 					 (1 << AC97_SLOT_LFE)
1697 			},
1698 			{
1699 				.slots = (1 << AC97_SLOT_PCM_LEFT) |
1700 					 (1 << AC97_SLOT_PCM_RIGHT) |
1701 					 (1 << AC97_SLOT_PCM_LEFT_0) |
1702 					 (1 << AC97_SLOT_PCM_RIGHT_0)
1703 			}
1704 		}
1705 	},
1706 	/* PCM IN #1 */
1707 	{
1708 		.stream = 1,
1709 		.exclusive = 1,
1710 		.r = {	{
1711 				.slots = (1 << AC97_SLOT_PCM_LEFT) |
1712 					 (1 << AC97_SLOT_PCM_RIGHT)
1713 			}
1714 		}
1715 	},
1716 	/* MIC IN #1 */
1717 	{
1718 		.stream = 1,
1719 		.exclusive = 1,
1720 		.r = {	{
1721 				.slots = (1 << AC97_SLOT_MIC)
1722 			}
1723 		}
1724 	},
1725 	/* S/PDIF PCM */
1726 	{
1727 		.exclusive = 1,
1728 		.spdif = 1,
1729 		.r = {	{
1730 				.slots = (1 << AC97_SLOT_SPDIF_LEFT2) |
1731 					 (1 << AC97_SLOT_SPDIF_RIGHT2)
1732 			}
1733 		}
1734 	},
1735 	/* PCM IN #2 */
1736 	{
1737 		.stream = 1,
1738 		.exclusive = 1,
1739 		.r = {	{
1740 				.slots = (1 << AC97_SLOT_PCM_LEFT) |
1741 					 (1 << AC97_SLOT_PCM_RIGHT)
1742 			}
1743 		}
1744 	},
1745 	/* MIC IN #2 */
1746 	{
1747 		.stream = 1,
1748 		.exclusive = 1,
1749 		.r = {	{
1750 				.slots = (1 << AC97_SLOT_MIC)
1751 			}
1752 		}
1753 	},
1754 };
1755 
1756 static const struct ac97_quirk ac97_quirks[] = {
1757         {
1758 		.subvendor = 0x0e11,
1759 		.subdevice = 0x000e,
1760 		.name = "Compaq Deskpro EN",	/* AD1885 */
1761 		.type = AC97_TUNE_HP_ONLY
1762         },
1763 	{
1764 		.subvendor = 0x0e11,
1765 		.subdevice = 0x008a,
1766 		.name = "Compaq Evo W4000",	/* AD1885 */
1767 		.type = AC97_TUNE_HP_ONLY
1768 	},
1769 	{
1770 		.subvendor = 0x0e11,
1771 		.subdevice = 0x00b8,
1772 		.name = "Compaq Evo D510C",
1773 		.type = AC97_TUNE_HP_ONLY
1774 	},
1775         {
1776 		.subvendor = 0x0e11,
1777 		.subdevice = 0x0860,
1778 		.name = "HP/Compaq nx7010",
1779 		.type = AC97_TUNE_MUTE_LED
1780         },
1781 	{
1782 		.subvendor = 0x1014,
1783 		.subdevice = 0x0534,
1784 		.name = "ThinkPad X31",
1785 		.type = AC97_TUNE_INV_EAPD
1786 	},
1787 	{
1788 		.subvendor = 0x1014,
1789 		.subdevice = 0x1f00,
1790 		.name = "MS-9128",
1791 		.type = AC97_TUNE_ALC_JACK
1792 	},
1793 	{
1794 		.subvendor = 0x1014,
1795 		.subdevice = 0x0267,
1796 		.name = "IBM NetVista A30p",	/* AD1981B */
1797 		.type = AC97_TUNE_HP_ONLY
1798 	},
1799 	{
1800 		.subvendor = 0x1025,
1801 		.subdevice = 0x0082,
1802 		.name = "Acer Travelmate 2310",
1803 		.type = AC97_TUNE_HP_ONLY
1804 	},
1805 	{
1806 		.subvendor = 0x1025,
1807 		.subdevice = 0x0083,
1808 		.name = "Acer Aspire 3003LCi",
1809 		.type = AC97_TUNE_HP_ONLY
1810 	},
1811 	{
1812 		.subvendor = 0x1028,
1813 		.subdevice = 0x00d8,
1814 		.name = "Dell Precision 530",	/* AD1885 */
1815 		.type = AC97_TUNE_HP_ONLY
1816 	},
1817 	{
1818 		.subvendor = 0x1028,
1819 		.subdevice = 0x010d,
1820 		.name = "Dell",	/* which model?  AD1885 */
1821 		.type = AC97_TUNE_HP_ONLY
1822 	},
1823 	{
1824 		.subvendor = 0x1028,
1825 		.subdevice = 0x0126,
1826 		.name = "Dell Optiplex GX260",	/* AD1981A */
1827 		.type = AC97_TUNE_HP_ONLY
1828 	},
1829 	{
1830 		.subvendor = 0x1028,
1831 		.subdevice = 0x012c,
1832 		.name = "Dell Precision 650",	/* AD1981A */
1833 		.type = AC97_TUNE_HP_ONLY
1834 	},
1835 	{
1836 		.subvendor = 0x1028,
1837 		.subdevice = 0x012d,
1838 		.name = "Dell Precision 450",	/* AD1981B*/
1839 		.type = AC97_TUNE_HP_ONLY
1840 	},
1841 	{
1842 		.subvendor = 0x1028,
1843 		.subdevice = 0x0147,
1844 		.name = "Dell",	/* which model?  AD1981B*/
1845 		.type = AC97_TUNE_HP_ONLY
1846 	},
1847 	{
1848 		.subvendor = 0x1028,
1849 		.subdevice = 0x0151,
1850 		.name = "Dell Optiplex GX270",  /* AD1981B */
1851 		.type = AC97_TUNE_HP_ONLY
1852 	},
1853 	{
1854 		.subvendor = 0x1028,
1855 		.subdevice = 0x014e,
1856 		.name = "Dell D800", /* STAC9750/51 */
1857 		.type = AC97_TUNE_HP_ONLY
1858 	},
1859 	{
1860 		.subvendor = 0x1028,
1861 		.subdevice = 0x0163,
1862 		.name = "Dell Unknown",	/* STAC9750/51 */
1863 		.type = AC97_TUNE_HP_ONLY
1864 	},
1865 	{
1866 		.subvendor = 0x1028,
1867 		.subdevice = 0x016a,
1868 		.name = "Dell Inspiron 8600",	/* STAC9750/51 */
1869 		.type = AC97_TUNE_HP_ONLY
1870 	},
1871 	{
1872 		.subvendor = 0x1028,
1873 		.subdevice = 0x0182,
1874 		.name = "Dell Latitude D610",	/* STAC9750/51 */
1875 		.type = AC97_TUNE_HP_ONLY
1876 	},
1877 	{
1878 		.subvendor = 0x1028,
1879 		.subdevice = 0x0186,
1880 		.name = "Dell Latitude D810", /* cf. Malone #41015 */
1881 		.type = AC97_TUNE_HP_MUTE_LED
1882 	},
1883 	{
1884 		.subvendor = 0x1028,
1885 		.subdevice = 0x0188,
1886 		.name = "Dell Inspiron 6000",
1887 		.type = AC97_TUNE_HP_MUTE_LED /* cf. Malone #41015 */
1888 	},
1889 	{
1890 		.subvendor = 0x1028,
1891 		.subdevice = 0x0189,
1892 		.name = "Dell Inspiron 9300",
1893 		.type = AC97_TUNE_HP_MUTE_LED
1894 	},
1895 	{
1896 		.subvendor = 0x1028,
1897 		.subdevice = 0x0191,
1898 		.name = "Dell Inspiron 8600",
1899 		.type = AC97_TUNE_HP_ONLY
1900 	},
1901 	{
1902 		.subvendor = 0x103c,
1903 		.subdevice = 0x006d,
1904 		.name = "HP zv5000",
1905 		.type = AC97_TUNE_MUTE_LED	/*AD1981B*/
1906 	},
1907 	{	/* FIXME: which codec? */
1908 		.subvendor = 0x103c,
1909 		.subdevice = 0x00c3,
1910 		.name = "HP xw6000",
1911 		.type = AC97_TUNE_HP_ONLY
1912 	},
1913 	{
1914 		.subvendor = 0x103c,
1915 		.subdevice = 0x088c,
1916 		.name = "HP nc8000",
1917 		.type = AC97_TUNE_HP_MUTE_LED
1918 	},
1919 	{
1920 		.subvendor = 0x103c,
1921 		.subdevice = 0x0890,
1922 		.name = "HP nc6000",
1923 		.type = AC97_TUNE_MUTE_LED
1924 	},
1925 	{
1926 		.subvendor = 0x103c,
1927 		.subdevice = 0x129d,
1928 		.name = "HP xw8000",
1929 		.type = AC97_TUNE_HP_ONLY
1930 	},
1931 	{
1932 		.subvendor = 0x103c,
1933 		.subdevice = 0x0938,
1934 		.name = "HP nc4200",
1935 		.type = AC97_TUNE_HP_MUTE_LED
1936 	},
1937 	{
1938 		.subvendor = 0x103c,
1939 		.subdevice = 0x099c,
1940 		.name = "HP nx6110/nc6120",
1941 		.type = AC97_TUNE_HP_MUTE_LED
1942 	},
1943 	{
1944 		.subvendor = 0x103c,
1945 		.subdevice = 0x0944,
1946 		.name = "HP nc6220",
1947 		.type = AC97_TUNE_HP_MUTE_LED
1948 	},
1949 	{
1950 		.subvendor = 0x103c,
1951 		.subdevice = 0x0934,
1952 		.name = "HP nc8220",
1953 		.type = AC97_TUNE_HP_MUTE_LED
1954 	},
1955 	{
1956 		.subvendor = 0x103c,
1957 		.subdevice = 0x12f1,
1958 		.name = "HP xw8200",	/* AD1981B*/
1959 		.type = AC97_TUNE_HP_ONLY
1960 	},
1961 	{
1962 		.subvendor = 0x103c,
1963 		.subdevice = 0x12f2,
1964 		.name = "HP xw6200",
1965 		.type = AC97_TUNE_HP_ONLY
1966 	},
1967 	{
1968 		.subvendor = 0x103c,
1969 		.subdevice = 0x3008,
1970 		.name = "HP xw4200",	/* AD1981B*/
1971 		.type = AC97_TUNE_HP_ONLY
1972 	},
1973 	{
1974 		.subvendor = 0x104d,
1975 		.subdevice = 0x8144,
1976 		.name = "Sony",
1977 		.type = AC97_TUNE_INV_EAPD
1978 	},
1979 	{
1980 		.subvendor = 0x104d,
1981 		.subdevice = 0x8197,
1982 		.name = "Sony S1XP",
1983 		.type = AC97_TUNE_INV_EAPD
1984 	},
1985 	{
1986 		.subvendor = 0x104d,
1987 		.subdevice = 0x81c0,
1988 		.name = "Sony VAIO VGN-T350P", /*AD1981B*/
1989 		.type = AC97_TUNE_INV_EAPD
1990 	},
1991 	{
1992 		.subvendor = 0x104d,
1993 		.subdevice = 0x81c5,
1994 		.name = "Sony VAIO VGN-B1VP", /*AD1981B*/
1995 		.type = AC97_TUNE_INV_EAPD
1996 	},
1997  	{
1998 		.subvendor = 0x1043,
1999 		.subdevice = 0x80f3,
2000 		.name = "ASUS ICH5/AD1985",
2001 		.type = AC97_TUNE_AD_SHARING
2002 	},
2003 	{
2004 		.subvendor = 0x10cf,
2005 		.subdevice = 0x11c3,
2006 		.name = "Fujitsu-Siemens E4010",
2007 		.type = AC97_TUNE_HP_ONLY
2008 	},
2009 	{
2010 		.subvendor = 0x10cf,
2011 		.subdevice = 0x1225,
2012 		.name = "Fujitsu-Siemens T3010",
2013 		.type = AC97_TUNE_HP_ONLY
2014 	},
2015 	{
2016 		.subvendor = 0x10cf,
2017 		.subdevice = 0x1253,
2018 		.name = "Fujitsu S6210",	/* STAC9750/51 */
2019 		.type = AC97_TUNE_HP_ONLY
2020 	},
2021 	{
2022 		.subvendor = 0x10cf,
2023 		.subdevice = 0x127d,
2024 		.name = "Fujitsu Lifebook P7010",
2025 		.type = AC97_TUNE_HP_ONLY
2026 	},
2027 	{
2028 		.subvendor = 0x10cf,
2029 		.subdevice = 0x127e,
2030 		.name = "Fujitsu Lifebook C1211D",
2031 		.type = AC97_TUNE_HP_ONLY
2032 	},
2033 	{
2034 		.subvendor = 0x10cf,
2035 		.subdevice = 0x12ec,
2036 		.name = "Fujitsu-Siemens 4010",
2037 		.type = AC97_TUNE_HP_ONLY
2038 	},
2039 	{
2040 		.subvendor = 0x10cf,
2041 		.subdevice = 0x12f2,
2042 		.name = "Fujitsu-Siemens Celsius H320",
2043 		.type = AC97_TUNE_SWAP_HP
2044 	},
2045 	{
2046 		.subvendor = 0x10f1,
2047 		.subdevice = 0x2665,
2048 		.name = "Fujitsu-Siemens Celsius",	/* AD1981? */
2049 		.type = AC97_TUNE_HP_ONLY
2050 	},
2051 	{
2052 		.subvendor = 0x10f1,
2053 		.subdevice = 0x2885,
2054 		.name = "AMD64 Mobo",	/* ALC650 */
2055 		.type = AC97_TUNE_HP_ONLY
2056 	},
2057 	{
2058 		.subvendor = 0x10f1,
2059 		.subdevice = 0x2895,
2060 		.name = "Tyan Thunder K8WE",
2061 		.type = AC97_TUNE_HP_ONLY
2062 	},
2063 	{
2064 		.subvendor = 0x10f7,
2065 		.subdevice = 0x834c,
2066 		.name = "Panasonic CF-R4",
2067 		.type = AC97_TUNE_HP_ONLY,
2068 	},
2069 	{
2070 		.subvendor = 0x110a,
2071 		.subdevice = 0x0056,
2072 		.name = "Fujitsu-Siemens Scenic",	/* AD1981? */
2073 		.type = AC97_TUNE_HP_ONLY
2074 	},
2075 	{
2076 		.subvendor = 0x11d4,
2077 		.subdevice = 0x5375,
2078 		.name = "ADI AD1985 (discrete)",
2079 		.type = AC97_TUNE_HP_ONLY
2080 	},
2081 	{
2082 		.subvendor = 0x1462,
2083 		.subdevice = 0x5470,
2084 		.name = "MSI P4 ATX 645 Ultra",
2085 		.type = AC97_TUNE_HP_ONLY
2086 	},
2087 	{
2088 		.subvendor = 0x161f,
2089 		.subdevice = 0x202f,
2090 		.name = "Gateway M520",
2091 		.type = AC97_TUNE_INV_EAPD
2092 	},
2093 	{
2094 		.subvendor = 0x161f,
2095 		.subdevice = 0x203a,
2096 		.name = "Gateway 4525GZ",		/* AD1981B */
2097 		.type = AC97_TUNE_INV_EAPD
2098 	},
2099 	{
2100 		.subvendor = 0x1734,
2101 		.subdevice = 0x0088,
2102 		.name = "Fujitsu-Siemens D1522",	/* AD1981 */
2103 		.type = AC97_TUNE_HP_ONLY
2104 	},
2105 	{
2106 		.subvendor = 0x8086,
2107 		.subdevice = 0x2000,
2108 		.mask = 0xfff0,
2109 		.name = "Intel ICH5/AD1985",
2110 		.type = AC97_TUNE_AD_SHARING
2111 	},
2112 	{
2113 		.subvendor = 0x8086,
2114 		.subdevice = 0x4000,
2115 		.mask = 0xfff0,
2116 		.name = "Intel ICH5/AD1985",
2117 		.type = AC97_TUNE_AD_SHARING
2118 	},
2119 	{
2120 		.subvendor = 0x8086,
2121 		.subdevice = 0x4856,
2122 		.name = "Intel D845WN (82801BA)",
2123 		.type = AC97_TUNE_SWAP_HP
2124 	},
2125 	{
2126 		.subvendor = 0x8086,
2127 		.subdevice = 0x4d44,
2128 		.name = "Intel D850EMV2",	/* AD1885 */
2129 		.type = AC97_TUNE_HP_ONLY
2130 	},
2131 	{
2132 		.subvendor = 0x8086,
2133 		.subdevice = 0x4d56,
2134 		.name = "Intel ICH/AD1885",
2135 		.type = AC97_TUNE_HP_ONLY
2136 	},
2137 	{
2138 		.subvendor = 0x8086,
2139 		.subdevice = 0x6000,
2140 		.mask = 0xfff0,
2141 		.name = "Intel ICH5/AD1985",
2142 		.type = AC97_TUNE_AD_SHARING
2143 	},
2144 	{
2145 		.subvendor = 0x8086,
2146 		.subdevice = 0xe000,
2147 		.mask = 0xfff0,
2148 		.name = "Intel ICH5/AD1985",
2149 		.type = AC97_TUNE_AD_SHARING
2150 	},
2151 #if 0 /* FIXME: this seems wrong on most boards */
2152 	{
2153 		.subvendor = 0x8086,
2154 		.subdevice = 0xa000,
2155 		.mask = 0xfff0,
2156 		.name = "Intel ICH5/AD1985",
2157 		.type = AC97_TUNE_HP_ONLY
2158 	},
2159 #endif
2160 	{ } /* terminator */
2161 };
2162 
2163 static int snd_intel8x0_mixer(struct intel8x0 *chip, int ac97_clock,
2164 			      const char *quirk_override)
2165 {
2166 	struct snd_ac97_bus *pbus;
2167 	struct snd_ac97_template ac97;
2168 	int err;
2169 	unsigned int i, codecs;
2170 	unsigned int glob_sta = 0;
2171 	struct snd_ac97_bus_ops *ops;
2172 	static struct snd_ac97_bus_ops standard_bus_ops = {
2173 		.write = snd_intel8x0_codec_write,
2174 		.read = snd_intel8x0_codec_read,
2175 	};
2176 	static struct snd_ac97_bus_ops ali_bus_ops = {
2177 		.write = snd_intel8x0_ali_codec_write,
2178 		.read = snd_intel8x0_ali_codec_read,
2179 	};
2180 
2181 	chip->spdif_idx = -1; /* use PCMOUT (or disabled) */
2182 	if (!spdif_aclink) {
2183 		switch (chip->device_type) {
2184 		case DEVICE_NFORCE:
2185 			chip->spdif_idx = NVD_SPBAR;
2186 			break;
2187 		case DEVICE_ALI:
2188 			chip->spdif_idx = ALID_AC97SPDIFOUT;
2189 			break;
2190 		case DEVICE_INTEL_ICH4:
2191 			chip->spdif_idx = ICHD_SPBAR;
2192 			break;
2193 		}
2194 	}
2195 
2196 	chip->in_ac97_init = 1;
2197 
2198 	memset(&ac97, 0, sizeof(ac97));
2199 	ac97.private_data = chip;
2200 	ac97.private_free = snd_intel8x0_mixer_free_ac97;
2201 	ac97.scaps = AC97_SCAP_SKIP_MODEM | AC97_SCAP_POWER_SAVE;
2202 	if (chip->xbox)
2203 		ac97.scaps |= AC97_SCAP_DETECT_BY_VENDOR;
2204 	if (chip->device_type != DEVICE_ALI) {
2205 		glob_sta = igetdword(chip, ICHREG(GLOB_STA));
2206 		ops = &standard_bus_ops;
2207 		chip->in_sdin_init = 1;
2208 		codecs = 0;
2209 		for (i = 0; i < chip->max_codecs; i++) {
2210 			if (! (glob_sta & chip->codec_bit[i]))
2211 				continue;
2212 			if (chip->device_type == DEVICE_INTEL_ICH4) {
2213 				snd_intel8x0_codec_read_test(chip, codecs);
2214 				chip->ac97_sdin[codecs] =
2215 					igetbyte(chip, ICHREG(SDM)) & ICH_LDI_MASK;
2216 				if (snd_BUG_ON(chip->ac97_sdin[codecs] >= 3))
2217 					chip->ac97_sdin[codecs] = 0;
2218 			} else
2219 				chip->ac97_sdin[codecs] = i;
2220 			codecs++;
2221 		}
2222 		chip->in_sdin_init = 0;
2223 		if (! codecs)
2224 			codecs = 1;
2225 	} else {
2226 		ops = &ali_bus_ops;
2227 		codecs = 1;
2228 		/* detect the secondary codec */
2229 		for (i = 0; i < 100; i++) {
2230 			unsigned int reg = igetdword(chip, ICHREG(ALI_RTSR));
2231 			if (reg & 0x40) {
2232 				codecs = 2;
2233 				break;
2234 			}
2235 			iputdword(chip, ICHREG(ALI_RTSR), reg | 0x40);
2236 			udelay(1);
2237 		}
2238 	}
2239 	if ((err = snd_ac97_bus(chip->card, 0, ops, chip, &pbus)) < 0)
2240 		goto __err;
2241 	pbus->private_free = snd_intel8x0_mixer_free_ac97_bus;
2242 	if (ac97_clock >= 8000 && ac97_clock <= 48000)
2243 		pbus->clock = ac97_clock;
2244 	/* FIXME: my test board doesn't work well with VRA... */
2245 	if (chip->device_type == DEVICE_ALI)
2246 		pbus->no_vra = 1;
2247 	else
2248 		pbus->dra = 1;
2249 	chip->ac97_bus = pbus;
2250 	chip->ncodecs = codecs;
2251 
2252 	ac97.pci = chip->pci;
2253 	for (i = 0; i < codecs; i++) {
2254 		ac97.num = i;
2255 		if ((err = snd_ac97_mixer(pbus, &ac97, &chip->ac97[i])) < 0) {
2256 			if (err != -EACCES)
2257 				dev_err(chip->card->dev,
2258 					"Unable to initialize codec #%d\n", i);
2259 			if (i == 0)
2260 				goto __err;
2261 		}
2262 	}
2263 	/* tune up the primary codec */
2264 	snd_ac97_tune_hardware(chip->ac97[0], ac97_quirks, quirk_override);
2265 	/* enable separate SDINs for ICH4 */
2266 	if (chip->device_type == DEVICE_INTEL_ICH4)
2267 		pbus->isdin = 1;
2268 	/* find the available PCM streams */
2269 	i = ARRAY_SIZE(ac97_pcm_defs);
2270 	if (chip->device_type != DEVICE_INTEL_ICH4)
2271 		i -= 2;		/* do not allocate PCM2IN and MIC2 */
2272 	if (chip->spdif_idx < 0)
2273 		i--;		/* do not allocate S/PDIF */
2274 	err = snd_ac97_pcm_assign(pbus, i, ac97_pcm_defs);
2275 	if (err < 0)
2276 		goto __err;
2277 	chip->ichd[ICHD_PCMOUT].pcm = &pbus->pcms[0];
2278 	chip->ichd[ICHD_PCMIN].pcm = &pbus->pcms[1];
2279 	chip->ichd[ICHD_MIC].pcm = &pbus->pcms[2];
2280 	if (chip->spdif_idx >= 0)
2281 		chip->ichd[chip->spdif_idx].pcm = &pbus->pcms[3];
2282 	if (chip->device_type == DEVICE_INTEL_ICH4) {
2283 		chip->ichd[ICHD_PCM2IN].pcm = &pbus->pcms[4];
2284 		chip->ichd[ICHD_MIC2].pcm = &pbus->pcms[5];
2285 	}
2286 	/* enable separate SDINs for ICH4 */
2287 	if (chip->device_type == DEVICE_INTEL_ICH4) {
2288 		struct ac97_pcm *pcm = chip->ichd[ICHD_PCM2IN].pcm;
2289 		u8 tmp = igetbyte(chip, ICHREG(SDM));
2290 		tmp &= ~(ICH_DI2L_MASK|ICH_DI1L_MASK);
2291 		if (pcm) {
2292 			tmp |= ICH_SE;	/* steer enable for multiple SDINs */
2293 			tmp |= chip->ac97_sdin[0] << ICH_DI1L_SHIFT;
2294 			for (i = 1; i < 4; i++) {
2295 				if (pcm->r[0].codec[i]) {
2296 					tmp |= chip->ac97_sdin[pcm->r[0].codec[1]->num] << ICH_DI2L_SHIFT;
2297 					break;
2298 				}
2299 			}
2300 		} else {
2301 			tmp &= ~ICH_SE; /* steer disable */
2302 		}
2303 		iputbyte(chip, ICHREG(SDM), tmp);
2304 	}
2305 	if (pbus->pcms[0].r[0].slots & (1 << AC97_SLOT_PCM_SLEFT)) {
2306 		chip->multi4 = 1;
2307 		if (pbus->pcms[0].r[0].slots & (1 << AC97_SLOT_LFE)) {
2308 			chip->multi6 = 1;
2309 			if (chip->ac97[0]->flags & AC97_HAS_8CH)
2310 				chip->multi8 = 1;
2311 		}
2312 	}
2313 	if (pbus->pcms[0].r[1].rslots[0]) {
2314 		chip->dra = 1;
2315 	}
2316 	if (chip->device_type == DEVICE_INTEL_ICH4) {
2317 		if ((igetdword(chip, ICHREG(GLOB_STA)) & ICH_SAMPLE_CAP) == ICH_SAMPLE_16_20)
2318 			chip->smp20bit = 1;
2319 	}
2320 	if (chip->device_type == DEVICE_NFORCE && !spdif_aclink) {
2321 		/* 48kHz only */
2322 		chip->ichd[chip->spdif_idx].pcm->rates = SNDRV_PCM_RATE_48000;
2323 	}
2324 	if (chip->device_type == DEVICE_INTEL_ICH4 && !spdif_aclink) {
2325 		/* use slot 10/11 for SPDIF */
2326 		u32 val;
2327 		val = igetdword(chip, ICHREG(GLOB_CNT)) & ~ICH_PCM_SPDIF_MASK;
2328 		val |= ICH_PCM_SPDIF_1011;
2329 		iputdword(chip, ICHREG(GLOB_CNT), val);
2330 		snd_ac97_update_bits(chip->ac97[0], AC97_EXTENDED_STATUS, 0x03 << 4, 0x03 << 4);
2331 	}
2332 	chip->in_ac97_init = 0;
2333 	return 0;
2334 
2335  __err:
2336 	/* clear the cold-reset bit for the next chance */
2337 	if (chip->device_type != DEVICE_ALI)
2338 		iputdword(chip, ICHREG(GLOB_CNT),
2339 			  igetdword(chip, ICHREG(GLOB_CNT)) & ~ICH_AC97COLD);
2340 	return err;
2341 }
2342 
2343 
2344 /*
2345  *
2346  */
2347 
2348 static void do_ali_reset(struct intel8x0 *chip)
2349 {
2350 	iputdword(chip, ICHREG(ALI_SCR), ICH_ALI_SC_RESET);
2351 	iputdword(chip, ICHREG(ALI_FIFOCR1), 0x83838383);
2352 	iputdword(chip, ICHREG(ALI_FIFOCR2), 0x83838383);
2353 	iputdword(chip, ICHREG(ALI_FIFOCR3), 0x83838383);
2354 	iputdword(chip, ICHREG(ALI_INTERFACECR),
2355 		  ICH_ALI_IF_PI|ICH_ALI_IF_PO);
2356 	iputdword(chip, ICHREG(ALI_INTERRUPTCR), 0x00000000);
2357 	iputdword(chip, ICHREG(ALI_INTERRUPTSR), 0x00000000);
2358 }
2359 
2360 #ifdef CONFIG_SND_AC97_POWER_SAVE
2361 static struct snd_pci_quirk ich_chip_reset_mode[] = {
2362 	SND_PCI_QUIRK(0x1014, 0x051f, "Thinkpad R32", 1),
2363 	{ } /* end */
2364 };
2365 
2366 static int snd_intel8x0_ich_chip_cold_reset(struct intel8x0 *chip)
2367 {
2368 	unsigned int cnt;
2369 	/* ACLink on, 2 channels */
2370 
2371 	if (snd_pci_quirk_lookup(chip->pci, ich_chip_reset_mode))
2372 		return -EIO;
2373 
2374 	cnt = igetdword(chip, ICHREG(GLOB_CNT));
2375 	cnt &= ~(ICH_ACLINK | ICH_PCM_246_MASK);
2376 
2377 	/* do cold reset - the full ac97 powerdown may leave the controller
2378 	 * in a warm state but actually it cannot communicate with the codec.
2379 	 */
2380 	iputdword(chip, ICHREG(GLOB_CNT), cnt & ~ICH_AC97COLD);
2381 	cnt = igetdword(chip, ICHREG(GLOB_CNT));
2382 	udelay(10);
2383 	iputdword(chip, ICHREG(GLOB_CNT), cnt | ICH_AC97COLD);
2384 	msleep(1);
2385 	return 0;
2386 }
2387 #define snd_intel8x0_ich_chip_can_cold_reset(chip) \
2388 	(!snd_pci_quirk_lookup(chip->pci, ich_chip_reset_mode))
2389 #else
2390 #define snd_intel8x0_ich_chip_cold_reset(chip)	0
2391 #define snd_intel8x0_ich_chip_can_cold_reset(chip) (0)
2392 #endif
2393 
2394 static int snd_intel8x0_ich_chip_reset(struct intel8x0 *chip)
2395 {
2396 	unsigned long end_time;
2397 	unsigned int cnt;
2398 	/* ACLink on, 2 channels */
2399 	cnt = igetdword(chip, ICHREG(GLOB_CNT));
2400 	cnt &= ~(ICH_ACLINK | ICH_PCM_246_MASK);
2401 	/* finish cold or do warm reset */
2402 	cnt |= (cnt & ICH_AC97COLD) == 0 ? ICH_AC97COLD : ICH_AC97WARM;
2403 	iputdword(chip, ICHREG(GLOB_CNT), cnt);
2404 	end_time = (jiffies + (HZ / 4)) + 1;
2405 	do {
2406 		if ((igetdword(chip, ICHREG(GLOB_CNT)) & ICH_AC97WARM) == 0)
2407 			return 0;
2408 		schedule_timeout_uninterruptible(1);
2409 	} while (time_after_eq(end_time, jiffies));
2410 	dev_err(chip->card->dev, "AC'97 warm reset still in progress? [0x%x]\n",
2411 		   igetdword(chip, ICHREG(GLOB_CNT)));
2412 	return -EIO;
2413 }
2414 
2415 static int snd_intel8x0_ich_chip_init(struct intel8x0 *chip, int probing)
2416 {
2417 	unsigned long end_time;
2418 	unsigned int status, nstatus;
2419 	unsigned int cnt;
2420 	int err;
2421 
2422 	/* put logic to right state */
2423 	/* first clear status bits */
2424 	status = ICH_RCS | ICH_MCINT | ICH_POINT | ICH_PIINT;
2425 	if (chip->device_type == DEVICE_NFORCE)
2426 		status |= ICH_NVSPINT;
2427 	cnt = igetdword(chip, ICHREG(GLOB_STA));
2428 	iputdword(chip, ICHREG(GLOB_STA), cnt & status);
2429 
2430 	if (snd_intel8x0_ich_chip_can_cold_reset(chip))
2431 		err = snd_intel8x0_ich_chip_cold_reset(chip);
2432 	else
2433 		err = snd_intel8x0_ich_chip_reset(chip);
2434 	if (err < 0)
2435 		return err;
2436 
2437 	if (probing) {
2438 		/* wait for any codec ready status.
2439 		 * Once it becomes ready it should remain ready
2440 		 * as long as we do not disable the ac97 link.
2441 		 */
2442 		end_time = jiffies + HZ;
2443 		do {
2444 			status = igetdword(chip, ICHREG(GLOB_STA)) &
2445 				chip->codec_isr_bits;
2446 			if (status)
2447 				break;
2448 			schedule_timeout_uninterruptible(1);
2449 		} while (time_after_eq(end_time, jiffies));
2450 		if (! status) {
2451 			/* no codec is found */
2452 			dev_err(chip->card->dev,
2453 				"codec_ready: codec is not ready [0x%x]\n",
2454 				   igetdword(chip, ICHREG(GLOB_STA)));
2455 			return -EIO;
2456 		}
2457 
2458 		/* wait for other codecs ready status. */
2459 		end_time = jiffies + HZ / 4;
2460 		while (status != chip->codec_isr_bits &&
2461 		       time_after_eq(end_time, jiffies)) {
2462 			schedule_timeout_uninterruptible(1);
2463 			status |= igetdword(chip, ICHREG(GLOB_STA)) &
2464 				chip->codec_isr_bits;
2465 		}
2466 
2467 	} else {
2468 		/* resume phase */
2469 		int i;
2470 		status = 0;
2471 		for (i = 0; i < chip->ncodecs; i++)
2472 			if (chip->ac97[i])
2473 				status |= chip->codec_bit[chip->ac97_sdin[i]];
2474 		/* wait until all the probed codecs are ready */
2475 		end_time = jiffies + HZ;
2476 		do {
2477 			nstatus = igetdword(chip, ICHREG(GLOB_STA)) &
2478 				chip->codec_isr_bits;
2479 			if (status == nstatus)
2480 				break;
2481 			schedule_timeout_uninterruptible(1);
2482 		} while (time_after_eq(end_time, jiffies));
2483 	}
2484 
2485 	if (chip->device_type == DEVICE_SIS) {
2486 		/* unmute the output on SIS7012 */
2487 		iputword(chip, 0x4c, igetword(chip, 0x4c) | 1);
2488 	}
2489 	if (chip->device_type == DEVICE_NFORCE && !spdif_aclink) {
2490 		/* enable SPDIF interrupt */
2491 		unsigned int val;
2492 		pci_read_config_dword(chip->pci, 0x4c, &val);
2493 		val |= 0x1000000;
2494 		pci_write_config_dword(chip->pci, 0x4c, val);
2495 	}
2496       	return 0;
2497 }
2498 
2499 static int snd_intel8x0_ali_chip_init(struct intel8x0 *chip, int probing)
2500 {
2501 	u32 reg;
2502 	int i = 0;
2503 
2504 	reg = igetdword(chip, ICHREG(ALI_SCR));
2505 	if ((reg & 2) == 0)	/* Cold required */
2506 		reg |= 2;
2507 	else
2508 		reg |= 1;	/* Warm */
2509 	reg &= ~0x80000000;	/* ACLink on */
2510 	iputdword(chip, ICHREG(ALI_SCR), reg);
2511 
2512 	for (i = 0; i < HZ / 2; i++) {
2513 		if (! (igetdword(chip, ICHREG(ALI_INTERRUPTSR)) & ALI_INT_GPIO))
2514 			goto __ok;
2515 		schedule_timeout_uninterruptible(1);
2516 	}
2517 	dev_err(chip->card->dev, "AC'97 reset failed.\n");
2518 	if (probing)
2519 		return -EIO;
2520 
2521  __ok:
2522 	for (i = 0; i < HZ / 2; i++) {
2523 		reg = igetdword(chip, ICHREG(ALI_RTSR));
2524 		if (reg & 0x80) /* primary codec */
2525 			break;
2526 		iputdword(chip, ICHREG(ALI_RTSR), reg | 0x80);
2527 		schedule_timeout_uninterruptible(1);
2528 	}
2529 
2530 	do_ali_reset(chip);
2531 	return 0;
2532 }
2533 
2534 static int snd_intel8x0_chip_init(struct intel8x0 *chip, int probing)
2535 {
2536 	unsigned int i, timeout;
2537 	int err;
2538 
2539 	if (chip->device_type != DEVICE_ALI) {
2540 		if ((err = snd_intel8x0_ich_chip_init(chip, probing)) < 0)
2541 			return err;
2542 		iagetword(chip, 0);	/* clear semaphore flag */
2543 	} else {
2544 		if ((err = snd_intel8x0_ali_chip_init(chip, probing)) < 0)
2545 			return err;
2546 	}
2547 
2548 	/* disable interrupts */
2549 	for (i = 0; i < chip->bdbars_count; i++)
2550 		iputbyte(chip, ICH_REG_OFF_CR + chip->ichd[i].reg_offset, 0x00);
2551 	/* reset channels */
2552 	for (i = 0; i < chip->bdbars_count; i++)
2553 		iputbyte(chip, ICH_REG_OFF_CR + chip->ichd[i].reg_offset, ICH_RESETREGS);
2554 	for (i = 0; i < chip->bdbars_count; i++) {
2555 	        timeout = 100000;
2556 	        while (--timeout != 0) {
2557         		if ((igetbyte(chip, ICH_REG_OFF_CR + chip->ichd[i].reg_offset) & ICH_RESETREGS) == 0)
2558         		        break;
2559                 }
2560                 if (timeout == 0)
2561 			dev_err(chip->card->dev, "reset of registers failed?\n");
2562         }
2563 	/* initialize Buffer Descriptor Lists */
2564 	for (i = 0; i < chip->bdbars_count; i++)
2565 		iputdword(chip, ICH_REG_OFF_BDBAR + chip->ichd[i].reg_offset,
2566 			  chip->ichd[i].bdbar_addr);
2567 	return 0;
2568 }
2569 
2570 static int snd_intel8x0_free(struct intel8x0 *chip)
2571 {
2572 	unsigned int i;
2573 
2574 	if (chip->irq < 0)
2575 		goto __hw_end;
2576 	/* disable interrupts */
2577 	for (i = 0; i < chip->bdbars_count; i++)
2578 		iputbyte(chip, ICH_REG_OFF_CR + chip->ichd[i].reg_offset, 0x00);
2579 	/* reset channels */
2580 	for (i = 0; i < chip->bdbars_count; i++)
2581 		iputbyte(chip, ICH_REG_OFF_CR + chip->ichd[i].reg_offset, ICH_RESETREGS);
2582 	if (chip->device_type == DEVICE_NFORCE && !spdif_aclink) {
2583 		/* stop the spdif interrupt */
2584 		unsigned int val;
2585 		pci_read_config_dword(chip->pci, 0x4c, &val);
2586 		val &= ~0x1000000;
2587 		pci_write_config_dword(chip->pci, 0x4c, val);
2588 	}
2589 	/* --- */
2590 
2591       __hw_end:
2592 	if (chip->irq >= 0)
2593 		free_irq(chip->irq, chip);
2594 	if (chip->bdbars.area)
2595 		snd_dma_free_pages(&chip->bdbars);
2596 	if (chip->addr)
2597 		pci_iounmap(chip->pci, chip->addr);
2598 	if (chip->bmaddr)
2599 		pci_iounmap(chip->pci, chip->bmaddr);
2600 	pci_release_regions(chip->pci);
2601 	pci_disable_device(chip->pci);
2602 	kfree(chip);
2603 	return 0;
2604 }
2605 
2606 #ifdef CONFIG_PM_SLEEP
2607 /*
2608  * power management
2609  */
2610 static int intel8x0_suspend(struct device *dev)
2611 {
2612 	struct snd_card *card = dev_get_drvdata(dev);
2613 	struct intel8x0 *chip = card->private_data;
2614 	int i;
2615 
2616 	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
2617 	for (i = 0; i < chip->ncodecs; i++)
2618 		snd_ac97_suspend(chip->ac97[i]);
2619 	if (chip->device_type == DEVICE_INTEL_ICH4)
2620 		chip->sdm_saved = igetbyte(chip, ICHREG(SDM));
2621 
2622 	if (chip->irq >= 0) {
2623 		free_irq(chip->irq, chip);
2624 		chip->irq = -1;
2625 	}
2626 	return 0;
2627 }
2628 
2629 static int intel8x0_resume(struct device *dev)
2630 {
2631 	struct pci_dev *pci = to_pci_dev(dev);
2632 	struct snd_card *card = dev_get_drvdata(dev);
2633 	struct intel8x0 *chip = card->private_data;
2634 	int i;
2635 
2636 	snd_intel8x0_chip_init(chip, 0);
2637 	if (request_irq(pci->irq, snd_intel8x0_interrupt,
2638 			IRQF_SHARED, KBUILD_MODNAME, chip)) {
2639 		dev_err(dev, "unable to grab IRQ %d, disabling device\n",
2640 			pci->irq);
2641 		snd_card_disconnect(card);
2642 		return -EIO;
2643 	}
2644 	chip->irq = pci->irq;
2645 	synchronize_irq(chip->irq);
2646 
2647 	/* re-initialize mixer stuff */
2648 	if (chip->device_type == DEVICE_INTEL_ICH4 && !spdif_aclink) {
2649 		/* enable separate SDINs for ICH4 */
2650 		iputbyte(chip, ICHREG(SDM), chip->sdm_saved);
2651 		/* use slot 10/11 for SPDIF */
2652 		iputdword(chip, ICHREG(GLOB_CNT),
2653 			  (igetdword(chip, ICHREG(GLOB_CNT)) & ~ICH_PCM_SPDIF_MASK) |
2654 			  ICH_PCM_SPDIF_1011);
2655 	}
2656 
2657 	for (i = 0; i < chip->ncodecs; i++)
2658 		snd_ac97_resume(chip->ac97[i]);
2659 
2660 	/* resume status */
2661 	for (i = 0; i < chip->bdbars_count; i++) {
2662 		struct ichdev *ichdev = &chip->ichd[i];
2663 		unsigned long port = ichdev->reg_offset;
2664 		if (! ichdev->substream || ! ichdev->suspended)
2665 			continue;
2666 		if (ichdev->ichd == ICHD_PCMOUT)
2667 			snd_intel8x0_setup_pcm_out(chip, ichdev->substream->runtime);
2668 		iputdword(chip, port + ICH_REG_OFF_BDBAR, ichdev->bdbar_addr);
2669 		iputbyte(chip, port + ICH_REG_OFF_LVI, ichdev->lvi);
2670 		iputbyte(chip, port + ICH_REG_OFF_CIV, ichdev->civ);
2671 		iputbyte(chip, port + ichdev->roff_sr, ICH_FIFOE | ICH_BCIS | ICH_LVBCI);
2672 	}
2673 
2674 	snd_power_change_state(card, SNDRV_CTL_POWER_D0);
2675 	return 0;
2676 }
2677 
2678 static SIMPLE_DEV_PM_OPS(intel8x0_pm, intel8x0_suspend, intel8x0_resume);
2679 #define INTEL8X0_PM_OPS	&intel8x0_pm
2680 #else
2681 #define INTEL8X0_PM_OPS	NULL
2682 #endif /* CONFIG_PM_SLEEP */
2683 
2684 #define INTEL8X0_TESTBUF_SIZE	32768	/* enough large for one shot */
2685 
2686 static void intel8x0_measure_ac97_clock(struct intel8x0 *chip)
2687 {
2688 	struct snd_pcm_substream *subs;
2689 	struct ichdev *ichdev;
2690 	unsigned long port;
2691 	unsigned long pos, pos1, t;
2692 	int civ, timeout = 1000, attempt = 1;
2693 	ktime_t start_time, stop_time;
2694 
2695 	if (chip->ac97_bus->clock != 48000)
2696 		return; /* specified in module option */
2697 
2698       __again:
2699 	subs = chip->pcm[0]->streams[0].substream;
2700 	if (! subs || subs->dma_buffer.bytes < INTEL8X0_TESTBUF_SIZE) {
2701 		dev_warn(chip->card->dev,
2702 			 "no playback buffer allocated - aborting measure ac97 clock\n");
2703 		return;
2704 	}
2705 	ichdev = &chip->ichd[ICHD_PCMOUT];
2706 	ichdev->physbuf = subs->dma_buffer.addr;
2707 	ichdev->size = ichdev->fragsize = INTEL8X0_TESTBUF_SIZE;
2708 	ichdev->substream = NULL; /* don't process interrupts */
2709 
2710 	/* set rate */
2711 	if (snd_ac97_set_rate(chip->ac97[0], AC97_PCM_FRONT_DAC_RATE, 48000) < 0) {
2712 		dev_err(chip->card->dev, "cannot set ac97 rate: clock = %d\n",
2713 			chip->ac97_bus->clock);
2714 		return;
2715 	}
2716 	snd_intel8x0_setup_periods(chip, ichdev);
2717 	port = ichdev->reg_offset;
2718 	spin_lock_irq(&chip->reg_lock);
2719 	chip->in_measurement = 1;
2720 	/* trigger */
2721 	if (chip->device_type != DEVICE_ALI)
2722 		iputbyte(chip, port + ICH_REG_OFF_CR, ICH_IOCE | ICH_STARTBM);
2723 	else {
2724 		iputbyte(chip, port + ICH_REG_OFF_CR, ICH_IOCE);
2725 		iputdword(chip, ICHREG(ALI_DMACR), 1 << ichdev->ali_slot);
2726 	}
2727 	start_time = ktime_get();
2728 	spin_unlock_irq(&chip->reg_lock);
2729 	msleep(50);
2730 	spin_lock_irq(&chip->reg_lock);
2731 	/* check the position */
2732 	do {
2733 		civ = igetbyte(chip, ichdev->reg_offset + ICH_REG_OFF_CIV);
2734 		pos1 = igetword(chip, ichdev->reg_offset + ichdev->roff_picb);
2735 		if (pos1 == 0) {
2736 			udelay(10);
2737 			continue;
2738 		}
2739 		if (civ == igetbyte(chip, ichdev->reg_offset + ICH_REG_OFF_CIV) &&
2740 		    pos1 == igetword(chip, ichdev->reg_offset + ichdev->roff_picb))
2741 			break;
2742 	} while (timeout--);
2743 	if (pos1 == 0) {	/* oops, this value is not reliable */
2744 		pos = 0;
2745 	} else {
2746 		pos = ichdev->fragsize1;
2747 		pos -= pos1 << ichdev->pos_shift;
2748 		pos += ichdev->position;
2749 	}
2750 	chip->in_measurement = 0;
2751 	stop_time = ktime_get();
2752 	/* stop */
2753 	if (chip->device_type == DEVICE_ALI) {
2754 		iputdword(chip, ICHREG(ALI_DMACR), 1 << (ichdev->ali_slot + 16));
2755 		iputbyte(chip, port + ICH_REG_OFF_CR, 0);
2756 		while (igetbyte(chip, port + ICH_REG_OFF_CR))
2757 			;
2758 	} else {
2759 		iputbyte(chip, port + ICH_REG_OFF_CR, 0);
2760 		while (!(igetbyte(chip, port + ichdev->roff_sr) & ICH_DCH))
2761 			;
2762 	}
2763 	iputbyte(chip, port + ICH_REG_OFF_CR, ICH_RESETREGS);
2764 	spin_unlock_irq(&chip->reg_lock);
2765 
2766 	if (pos == 0) {
2767 		dev_err(chip->card->dev,
2768 			"measure - unreliable DMA position..\n");
2769 	      __retry:
2770 		if (attempt < 3) {
2771 			msleep(300);
2772 			attempt++;
2773 			goto __again;
2774 		}
2775 		goto __end;
2776 	}
2777 
2778 	pos /= 4;
2779 	t = ktime_us_delta(stop_time, start_time);
2780 	dev_info(chip->card->dev,
2781 		 "%s: measured %lu usecs (%lu samples)\n", __func__, t, pos);
2782 	if (t == 0) {
2783 		dev_err(chip->card->dev, "?? calculation error..\n");
2784 		goto __retry;
2785 	}
2786 	pos *= 1000;
2787 	pos = (pos / t) * 1000 + ((pos % t) * 1000) / t;
2788 	if (pos < 40000 || pos >= 60000) {
2789 		/* abnormal value. hw problem? */
2790 		dev_info(chip->card->dev, "measured clock %ld rejected\n", pos);
2791 		goto __retry;
2792 	} else if (pos > 40500 && pos < 41500)
2793 		/* first exception - 41000Hz reference clock */
2794 		chip->ac97_bus->clock = 41000;
2795 	else if (pos > 43600 && pos < 44600)
2796 		/* second exception - 44100HZ reference clock */
2797 		chip->ac97_bus->clock = 44100;
2798 	else if (pos < 47500 || pos > 48500)
2799 		/* not 48000Hz, tuning the clock.. */
2800 		chip->ac97_bus->clock = (chip->ac97_bus->clock * 48000) / pos;
2801       __end:
2802 	dev_info(chip->card->dev, "clocking to %d\n", chip->ac97_bus->clock);
2803 	snd_ac97_update_power(chip->ac97[0], AC97_PCM_FRONT_DAC_RATE, 0);
2804 }
2805 
2806 static struct snd_pci_quirk intel8x0_clock_list[] = {
2807 	SND_PCI_QUIRK(0x0e11, 0x008a, "AD1885", 41000),
2808 	SND_PCI_QUIRK(0x1014, 0x0581, "AD1981B", 48000),
2809 	SND_PCI_QUIRK(0x1028, 0x00be, "AD1885", 44100),
2810 	SND_PCI_QUIRK(0x1028, 0x0177, "AD1980", 48000),
2811 	SND_PCI_QUIRK(0x1028, 0x01ad, "AD1981B", 48000),
2812 	SND_PCI_QUIRK(0x1043, 0x80f3, "AD1985", 48000),
2813 	{ }	/* terminator */
2814 };
2815 
2816 static int intel8x0_in_clock_list(struct intel8x0 *chip)
2817 {
2818 	struct pci_dev *pci = chip->pci;
2819 	const struct snd_pci_quirk *wl;
2820 
2821 	wl = snd_pci_quirk_lookup(pci, intel8x0_clock_list);
2822 	if (!wl)
2823 		return 0;
2824 	dev_info(chip->card->dev, "white list rate for %04x:%04x is %i\n",
2825 	       pci->subsystem_vendor, pci->subsystem_device, wl->value);
2826 	chip->ac97_bus->clock = wl->value;
2827 	return 1;
2828 }
2829 
2830 static void snd_intel8x0_proc_read(struct snd_info_entry * entry,
2831 				   struct snd_info_buffer *buffer)
2832 {
2833 	struct intel8x0 *chip = entry->private_data;
2834 	unsigned int tmp;
2835 
2836 	snd_iprintf(buffer, "Intel8x0\n\n");
2837 	if (chip->device_type == DEVICE_ALI)
2838 		return;
2839 	tmp = igetdword(chip, ICHREG(GLOB_STA));
2840 	snd_iprintf(buffer, "Global control        : 0x%08x\n", igetdword(chip, ICHREG(GLOB_CNT)));
2841 	snd_iprintf(buffer, "Global status         : 0x%08x\n", tmp);
2842 	if (chip->device_type == DEVICE_INTEL_ICH4)
2843 		snd_iprintf(buffer, "SDM                   : 0x%08x\n", igetdword(chip, ICHREG(SDM)));
2844 	snd_iprintf(buffer, "AC'97 codecs ready    :");
2845 	if (tmp & chip->codec_isr_bits) {
2846 		int i;
2847 		static const char *codecs[3] = {
2848 			"primary", "secondary", "tertiary"
2849 		};
2850 		for (i = 0; i < chip->max_codecs; i++)
2851 			if (tmp & chip->codec_bit[i])
2852 				snd_iprintf(buffer, " %s", codecs[i]);
2853 	} else
2854 		snd_iprintf(buffer, " none");
2855 	snd_iprintf(buffer, "\n");
2856 	if (chip->device_type == DEVICE_INTEL_ICH4 ||
2857 	    chip->device_type == DEVICE_SIS)
2858 		snd_iprintf(buffer, "AC'97 codecs SDIN     : %i %i %i\n",
2859 			chip->ac97_sdin[0],
2860 			chip->ac97_sdin[1],
2861 			chip->ac97_sdin[2]);
2862 }
2863 
2864 static void snd_intel8x0_proc_init(struct intel8x0 *chip)
2865 {
2866 	snd_card_ro_proc_new(chip->card, "intel8x0", chip,
2867 			     snd_intel8x0_proc_read);
2868 }
2869 
2870 static int snd_intel8x0_dev_free(struct snd_device *device)
2871 {
2872 	struct intel8x0 *chip = device->device_data;
2873 	return snd_intel8x0_free(chip);
2874 }
2875 
2876 struct ich_reg_info {
2877 	unsigned int int_sta_mask;
2878 	unsigned int offset;
2879 };
2880 
2881 static unsigned int ich_codec_bits[3] = {
2882 	ICH_PCR, ICH_SCR, ICH_TCR
2883 };
2884 static unsigned int sis_codec_bits[3] = {
2885 	ICH_PCR, ICH_SCR, ICH_SIS_TCR
2886 };
2887 
2888 static int snd_intel8x0_inside_vm(struct pci_dev *pci)
2889 {
2890 	int result  = inside_vm;
2891 	char *msg   = NULL;
2892 
2893 	/* check module parameter first (override detection) */
2894 	if (result >= 0) {
2895 		msg = result ? "enable (forced) VM" : "disable (forced) VM";
2896 		goto fini;
2897 	}
2898 
2899 	/* check for known (emulated) devices */
2900 	result = 0;
2901 	if (pci->subsystem_vendor == PCI_SUBVENDOR_ID_REDHAT_QUMRANET &&
2902 	    pci->subsystem_device == PCI_SUBDEVICE_ID_QEMU) {
2903 		/* KVM emulated sound, PCI SSID: 1af4:1100 */
2904 		msg = "enable KVM";
2905 		result = 1;
2906 	} else if (pci->subsystem_vendor == 0x1ab8) {
2907 		/* Parallels VM emulated sound, PCI SSID: 1ab8:xxxx */
2908 		msg = "enable Parallels VM";
2909 		result = 1;
2910 	}
2911 
2912 fini:
2913 	if (msg != NULL)
2914 		dev_info(&pci->dev, "%s optimization\n", msg);
2915 
2916 	return result;
2917 }
2918 
2919 static int snd_intel8x0_create(struct snd_card *card,
2920 			       struct pci_dev *pci,
2921 			       unsigned long device_type,
2922 			       struct intel8x0 **r_intel8x0)
2923 {
2924 	struct intel8x0 *chip;
2925 	int err;
2926 	unsigned int i;
2927 	unsigned int int_sta_masks;
2928 	struct ichdev *ichdev;
2929 	static struct snd_device_ops ops = {
2930 		.dev_free =	snd_intel8x0_dev_free,
2931 	};
2932 
2933 	static unsigned int bdbars[] = {
2934 		3, /* DEVICE_INTEL */
2935 		6, /* DEVICE_INTEL_ICH4 */
2936 		3, /* DEVICE_SIS */
2937 		6, /* DEVICE_ALI */
2938 		4, /* DEVICE_NFORCE */
2939 	};
2940 	static struct ich_reg_info intel_regs[6] = {
2941 		{ ICH_PIINT, 0 },
2942 		{ ICH_POINT, 0x10 },
2943 		{ ICH_MCINT, 0x20 },
2944 		{ ICH_M2INT, 0x40 },
2945 		{ ICH_P2INT, 0x50 },
2946 		{ ICH_SPINT, 0x60 },
2947 	};
2948 	static struct ich_reg_info nforce_regs[4] = {
2949 		{ ICH_PIINT, 0 },
2950 		{ ICH_POINT, 0x10 },
2951 		{ ICH_MCINT, 0x20 },
2952 		{ ICH_NVSPINT, 0x70 },
2953 	};
2954 	static struct ich_reg_info ali_regs[6] = {
2955 		{ ALI_INT_PCMIN, 0x40 },
2956 		{ ALI_INT_PCMOUT, 0x50 },
2957 		{ ALI_INT_MICIN, 0x60 },
2958 		{ ALI_INT_CODECSPDIFOUT, 0x70 },
2959 		{ ALI_INT_SPDIFIN, 0xa0 },
2960 		{ ALI_INT_SPDIFOUT, 0xb0 },
2961 	};
2962 	struct ich_reg_info *tbl;
2963 
2964 	*r_intel8x0 = NULL;
2965 
2966 	if ((err = pci_enable_device(pci)) < 0)
2967 		return err;
2968 
2969 	chip = kzalloc(sizeof(*chip), GFP_KERNEL);
2970 	if (chip == NULL) {
2971 		pci_disable_device(pci);
2972 		return -ENOMEM;
2973 	}
2974 	spin_lock_init(&chip->reg_lock);
2975 	chip->device_type = device_type;
2976 	chip->card = card;
2977 	chip->pci = pci;
2978 	chip->irq = -1;
2979 
2980 	/* module parameters */
2981 	chip->buggy_irq = buggy_irq;
2982 	chip->buggy_semaphore = buggy_semaphore;
2983 	if (xbox)
2984 		chip->xbox = 1;
2985 
2986 	chip->inside_vm = snd_intel8x0_inside_vm(pci);
2987 
2988 	/*
2989 	 * Intel 82443MX running a 100MHz processor system bus has a hardware
2990 	 * bug, which aborts PCI busmaster for audio transfer.  A workaround
2991 	 * is to set the pages as non-cached.  For details, see the errata in
2992 	 *     http://download.intel.com/design/chipsets/specupdt/24505108.pdf
2993 	 */
2994 	if (pci->vendor == PCI_VENDOR_ID_INTEL &&
2995 	    pci->device == PCI_DEVICE_ID_INTEL_440MX)
2996 		chip->fix_nocache = 1; /* enable workaround */
2997 
2998 	if ((err = pci_request_regions(pci, card->shortname)) < 0) {
2999 		kfree(chip);
3000 		pci_disable_device(pci);
3001 		return err;
3002 	}
3003 
3004 	if (device_type == DEVICE_ALI) {
3005 		/* ALI5455 has no ac97 region */
3006 		chip->bmaddr = pci_iomap(pci, 0, 0);
3007 		goto port_inited;
3008 	}
3009 
3010 	if (pci_resource_flags(pci, 2) & IORESOURCE_MEM) /* ICH4 and Nforce */
3011 		chip->addr = pci_iomap(pci, 2, 0);
3012 	else
3013 		chip->addr = pci_iomap(pci, 0, 0);
3014 	if (!chip->addr) {
3015 		dev_err(card->dev, "AC'97 space ioremap problem\n");
3016 		snd_intel8x0_free(chip);
3017 		return -EIO;
3018 	}
3019 	if (pci_resource_flags(pci, 3) & IORESOURCE_MEM) /* ICH4 */
3020 		chip->bmaddr = pci_iomap(pci, 3, 0);
3021 	else
3022 		chip->bmaddr = pci_iomap(pci, 1, 0);
3023 
3024  port_inited:
3025 	if (!chip->bmaddr) {
3026 		dev_err(card->dev, "Controller space ioremap problem\n");
3027 		snd_intel8x0_free(chip);
3028 		return -EIO;
3029 	}
3030 	chip->bdbars_count = bdbars[device_type];
3031 
3032 	/* initialize offsets */
3033 	switch (device_type) {
3034 	case DEVICE_NFORCE:
3035 		tbl = nforce_regs;
3036 		break;
3037 	case DEVICE_ALI:
3038 		tbl = ali_regs;
3039 		break;
3040 	default:
3041 		tbl = intel_regs;
3042 		break;
3043 	}
3044 	for (i = 0; i < chip->bdbars_count; i++) {
3045 		ichdev = &chip->ichd[i];
3046 		ichdev->ichd = i;
3047 		ichdev->reg_offset = tbl[i].offset;
3048 		ichdev->int_sta_mask = tbl[i].int_sta_mask;
3049 		if (device_type == DEVICE_SIS) {
3050 			/* SiS 7012 swaps the registers */
3051 			ichdev->roff_sr = ICH_REG_OFF_PICB;
3052 			ichdev->roff_picb = ICH_REG_OFF_SR;
3053 		} else {
3054 			ichdev->roff_sr = ICH_REG_OFF_SR;
3055 			ichdev->roff_picb = ICH_REG_OFF_PICB;
3056 		}
3057 		if (device_type == DEVICE_ALI)
3058 			ichdev->ali_slot = (ichdev->reg_offset - 0x40) / 0x10;
3059 		/* SIS7012 handles the pcm data in bytes, others are in samples */
3060 		ichdev->pos_shift = (device_type == DEVICE_SIS) ? 0 : 1;
3061 	}
3062 
3063 	/* allocate buffer descriptor lists */
3064 	/* the start of each lists must be aligned to 8 bytes */
3065 	if (snd_dma_alloc_pages(intel8x0_dma_type(chip), snd_dma_pci_data(pci),
3066 				chip->bdbars_count * sizeof(u32) * ICH_MAX_FRAGS * 2,
3067 				&chip->bdbars) < 0) {
3068 		snd_intel8x0_free(chip);
3069 		dev_err(card->dev, "cannot allocate buffer descriptors\n");
3070 		return -ENOMEM;
3071 	}
3072 	/* tables must be aligned to 8 bytes here, but the kernel pages
3073 	   are much bigger, so we don't care (on i386) */
3074 	int_sta_masks = 0;
3075 	for (i = 0; i < chip->bdbars_count; i++) {
3076 		ichdev = &chip->ichd[i];
3077 		ichdev->bdbar = ((__le32 *)chip->bdbars.area) +
3078 			(i * ICH_MAX_FRAGS * 2);
3079 		ichdev->bdbar_addr = chip->bdbars.addr +
3080 			(i * sizeof(u32) * ICH_MAX_FRAGS * 2);
3081 		int_sta_masks |= ichdev->int_sta_mask;
3082 	}
3083 	chip->int_sta_reg = device_type == DEVICE_ALI ?
3084 		ICH_REG_ALI_INTERRUPTSR : ICH_REG_GLOB_STA;
3085 	chip->int_sta_mask = int_sta_masks;
3086 
3087 	pci_set_master(pci);
3088 
3089 	switch(chip->device_type) {
3090 	case DEVICE_INTEL_ICH4:
3091 		/* ICH4 can have three codecs */
3092 		chip->max_codecs = 3;
3093 		chip->codec_bit = ich_codec_bits;
3094 		chip->codec_ready_bits = ICH_PRI | ICH_SRI | ICH_TRI;
3095 		break;
3096 	case DEVICE_SIS:
3097 		/* recent SIS7012 can have three codecs */
3098 		chip->max_codecs = 3;
3099 		chip->codec_bit = sis_codec_bits;
3100 		chip->codec_ready_bits = ICH_PRI | ICH_SRI | ICH_SIS_TRI;
3101 		break;
3102 	default:
3103 		/* others up to two codecs */
3104 		chip->max_codecs = 2;
3105 		chip->codec_bit = ich_codec_bits;
3106 		chip->codec_ready_bits = ICH_PRI | ICH_SRI;
3107 		break;
3108 	}
3109 	for (i = 0; i < chip->max_codecs; i++)
3110 		chip->codec_isr_bits |= chip->codec_bit[i];
3111 
3112 	if ((err = snd_intel8x0_chip_init(chip, 1)) < 0) {
3113 		snd_intel8x0_free(chip);
3114 		return err;
3115 	}
3116 
3117 	/* request irq after initializaing int_sta_mask, etc */
3118 	if (request_irq(pci->irq, snd_intel8x0_interrupt,
3119 			IRQF_SHARED, KBUILD_MODNAME, chip)) {
3120 		dev_err(card->dev, "unable to grab IRQ %d\n", pci->irq);
3121 		snd_intel8x0_free(chip);
3122 		return -EBUSY;
3123 	}
3124 	chip->irq = pci->irq;
3125 
3126 	if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
3127 		snd_intel8x0_free(chip);
3128 		return err;
3129 	}
3130 
3131 	*r_intel8x0 = chip;
3132 	return 0;
3133 }
3134 
3135 static struct shortname_table {
3136 	unsigned int id;
3137 	const char *s;
3138 } shortnames[] = {
3139 	{ PCI_DEVICE_ID_INTEL_82801AA_5, "Intel 82801AA-ICH" },
3140 	{ PCI_DEVICE_ID_INTEL_82801AB_5, "Intel 82901AB-ICH0" },
3141 	{ PCI_DEVICE_ID_INTEL_82801BA_4, "Intel 82801BA-ICH2" },
3142 	{ PCI_DEVICE_ID_INTEL_440MX, "Intel 440MX" },
3143 	{ PCI_DEVICE_ID_INTEL_82801CA_5, "Intel 82801CA-ICH3" },
3144 	{ PCI_DEVICE_ID_INTEL_82801DB_5, "Intel 82801DB-ICH4" },
3145 	{ PCI_DEVICE_ID_INTEL_82801EB_5, "Intel ICH5" },
3146 	{ PCI_DEVICE_ID_INTEL_ESB_5, "Intel 6300ESB" },
3147 	{ PCI_DEVICE_ID_INTEL_ICH6_18, "Intel ICH6" },
3148 	{ PCI_DEVICE_ID_INTEL_ICH7_20, "Intel ICH7" },
3149 	{ PCI_DEVICE_ID_INTEL_ESB2_14, "Intel ESB2" },
3150 	{ PCI_DEVICE_ID_SI_7012, "SiS SI7012" },
3151 	{ PCI_DEVICE_ID_NVIDIA_MCP1_AUDIO, "NVidia nForce" },
3152 	{ PCI_DEVICE_ID_NVIDIA_MCP2_AUDIO, "NVidia nForce2" },
3153 	{ PCI_DEVICE_ID_NVIDIA_MCP3_AUDIO, "NVidia nForce3" },
3154 	{ PCI_DEVICE_ID_NVIDIA_CK8S_AUDIO, "NVidia CK8S" },
3155 	{ PCI_DEVICE_ID_NVIDIA_CK804_AUDIO, "NVidia CK804" },
3156 	{ PCI_DEVICE_ID_NVIDIA_CK8_AUDIO, "NVidia CK8" },
3157 	{ 0x003a, "NVidia MCP04" },
3158 	{ 0x746d, "AMD AMD8111" },
3159 	{ 0x7445, "AMD AMD768" },
3160 	{ 0x5455, "ALi M5455" },
3161 	{ 0, NULL },
3162 };
3163 
3164 static struct snd_pci_quirk spdif_aclink_defaults[] = {
3165 	SND_PCI_QUIRK(0x147b, 0x1c1a, "ASUS KN8", 1),
3166 	{ } /* end */
3167 };
3168 
3169 /* look up white/black list for SPDIF over ac-link */
3170 static int check_default_spdif_aclink(struct pci_dev *pci)
3171 {
3172 	const struct snd_pci_quirk *w;
3173 
3174 	w = snd_pci_quirk_lookup(pci, spdif_aclink_defaults);
3175 	if (w) {
3176 		if (w->value)
3177 			dev_dbg(&pci->dev,
3178 				"Using SPDIF over AC-Link for %s\n",
3179 				    snd_pci_quirk_name(w));
3180 		else
3181 			dev_dbg(&pci->dev,
3182 				"Using integrated SPDIF DMA for %s\n",
3183 				    snd_pci_quirk_name(w));
3184 		return w->value;
3185 	}
3186 	return 0;
3187 }
3188 
3189 static int snd_intel8x0_probe(struct pci_dev *pci,
3190 			      const struct pci_device_id *pci_id)
3191 {
3192 	struct snd_card *card;
3193 	struct intel8x0 *chip;
3194 	int err;
3195 	struct shortname_table *name;
3196 
3197 	err = snd_card_new(&pci->dev, index, id, THIS_MODULE, 0, &card);
3198 	if (err < 0)
3199 		return err;
3200 
3201 	if (spdif_aclink < 0)
3202 		spdif_aclink = check_default_spdif_aclink(pci);
3203 
3204 	strcpy(card->driver, "ICH");
3205 	if (!spdif_aclink) {
3206 		switch (pci_id->driver_data) {
3207 		case DEVICE_NFORCE:
3208 			strcpy(card->driver, "NFORCE");
3209 			break;
3210 		case DEVICE_INTEL_ICH4:
3211 			strcpy(card->driver, "ICH4");
3212 		}
3213 	}
3214 
3215 	strcpy(card->shortname, "Intel ICH");
3216 	for (name = shortnames; name->id; name++) {
3217 		if (pci->device == name->id) {
3218 			strcpy(card->shortname, name->s);
3219 			break;
3220 		}
3221 	}
3222 
3223 	if (buggy_irq < 0) {
3224 		/* some Nforce[2] and ICH boards have problems with IRQ handling.
3225 		 * Needs to return IRQ_HANDLED for unknown irqs.
3226 		 */
3227 		if (pci_id->driver_data == DEVICE_NFORCE)
3228 			buggy_irq = 1;
3229 		else
3230 			buggy_irq = 0;
3231 	}
3232 
3233 	if ((err = snd_intel8x0_create(card, pci, pci_id->driver_data,
3234 				       &chip)) < 0) {
3235 		snd_card_free(card);
3236 		return err;
3237 	}
3238 	card->private_data = chip;
3239 
3240 	if ((err = snd_intel8x0_mixer(chip, ac97_clock, ac97_quirk)) < 0) {
3241 		snd_card_free(card);
3242 		return err;
3243 	}
3244 	if ((err = snd_intel8x0_pcm(chip)) < 0) {
3245 		snd_card_free(card);
3246 		return err;
3247 	}
3248 
3249 	snd_intel8x0_proc_init(chip);
3250 
3251 	snprintf(card->longname, sizeof(card->longname),
3252 		 "%s with %s at irq %i", card->shortname,
3253 		 snd_ac97_get_short_name(chip->ac97[0]), chip->irq);
3254 
3255 	if (ac97_clock == 0 || ac97_clock == 1) {
3256 		if (ac97_clock == 0) {
3257 			if (intel8x0_in_clock_list(chip) == 0)
3258 				intel8x0_measure_ac97_clock(chip);
3259 		} else {
3260 			intel8x0_measure_ac97_clock(chip);
3261 		}
3262 	}
3263 
3264 	if ((err = snd_card_register(card)) < 0) {
3265 		snd_card_free(card);
3266 		return err;
3267 	}
3268 	pci_set_drvdata(pci, card);
3269 	return 0;
3270 }
3271 
3272 static void snd_intel8x0_remove(struct pci_dev *pci)
3273 {
3274 	snd_card_free(pci_get_drvdata(pci));
3275 }
3276 
3277 static struct pci_driver intel8x0_driver = {
3278 	.name = KBUILD_MODNAME,
3279 	.id_table = snd_intel8x0_ids,
3280 	.probe = snd_intel8x0_probe,
3281 	.remove = snd_intel8x0_remove,
3282 	.driver = {
3283 		.pm = INTEL8X0_PM_OPS,
3284 	},
3285 };
3286 
3287 module_pci_driver(intel8x0_driver);
3288