xref: /openbmc/linux/sound/pci/intel8x0.c (revision 275876e2)
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 <asm/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 /* for 440MX workaround */
42 #include <asm/pgtable.h>
43 #include <asm/cacheflush.h>
44 
45 #ifdef CONFIG_KVM_GUEST
46 #include <linux/kvm_para.h>
47 #else
48 #define kvm_para_available() (0)
49 #endif
50 
51 MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
52 MODULE_DESCRIPTION("Intel 82801AA,82901AB,i810,i820,i830,i840,i845,MX440; SiS 7012; Ali 5455");
53 MODULE_LICENSE("GPL");
54 MODULE_SUPPORTED_DEVICE("{{Intel,82801AA-ICH},"
55 		"{Intel,82901AB-ICH0},"
56 		"{Intel,82801BA-ICH2},"
57 		"{Intel,82801CA-ICH3},"
58 		"{Intel,82801DB-ICH4},"
59 		"{Intel,ICH5},"
60 		"{Intel,ICH6},"
61 		"{Intel,ICH7},"
62 		"{Intel,6300ESB},"
63 		"{Intel,ESB2},"
64 		"{Intel,MX440},"
65 		"{SiS,SI7012},"
66 		"{NVidia,nForce Audio},"
67 		"{NVidia,nForce2 Audio},"
68 		"{NVidia,nForce3 Audio},"
69 		"{NVidia,MCP04},"
70 		"{NVidia,MCP501},"
71 		"{NVidia,CK804},"
72 		"{NVidia,CK8},"
73 		"{NVidia,CK8S},"
74 		"{AMD,AMD768},"
75 		"{AMD,AMD8111},"
76 	        "{ALI,M5455}}");
77 
78 static int index = SNDRV_DEFAULT_IDX1;	/* Index 0-MAX */
79 static char *id = SNDRV_DEFAULT_STR1;	/* ID for this card */
80 static int ac97_clock;
81 static char *ac97_quirk;
82 static bool buggy_semaphore;
83 static int buggy_irq = -1; /* auto-check */
84 static bool xbox;
85 static int spdif_aclink = -1;
86 static int inside_vm = -1;
87 
88 module_param(index, int, 0444);
89 MODULE_PARM_DESC(index, "Index value for Intel i8x0 soundcard.");
90 module_param(id, charp, 0444);
91 MODULE_PARM_DESC(id, "ID string for Intel i8x0 soundcard.");
92 module_param(ac97_clock, int, 0444);
93 MODULE_PARM_DESC(ac97_clock, "AC'97 codec clock (0 = whitelist + auto-detect, 1 = force autodetect).");
94 module_param(ac97_quirk, charp, 0444);
95 MODULE_PARM_DESC(ac97_quirk, "AC'97 workaround for strange hardware.");
96 module_param(buggy_semaphore, bool, 0444);
97 MODULE_PARM_DESC(buggy_semaphore, "Enable workaround for hardwares with problematic codec semaphores.");
98 module_param(buggy_irq, bint, 0444);
99 MODULE_PARM_DESC(buggy_irq, "Enable workaround for buggy interrupts on some motherboards.");
100 module_param(xbox, bool, 0444);
101 MODULE_PARM_DESC(xbox, "Set to 1 for Xbox, if you have problems with the AC'97 codec detection.");
102 module_param(spdif_aclink, int, 0444);
103 MODULE_PARM_DESC(spdif_aclink, "S/PDIF over AC-link.");
104 module_param(inside_vm, bint, 0444);
105 MODULE_PARM_DESC(inside_vm, "KVM/Parallels optimization.");
106 
107 /* just for backward compatibility */
108 static bool enable;
109 module_param(enable, bool, 0444);
110 static int joystick;
111 module_param(joystick, int, 0444);
112 
113 /*
114  *  Direct registers
115  */
116 enum { DEVICE_INTEL, DEVICE_INTEL_ICH4, DEVICE_SIS, DEVICE_ALI, DEVICE_NFORCE };
117 
118 #define ICHREG(x) ICH_REG_##x
119 
120 #define DEFINE_REGSET(name,base) \
121 enum { \
122 	ICH_REG_##name##_BDBAR	= base + 0x0,	/* dword - buffer descriptor list base address */ \
123 	ICH_REG_##name##_CIV	= base + 0x04,	/* byte - current index value */ \
124 	ICH_REG_##name##_LVI	= base + 0x05,	/* byte - last valid index */ \
125 	ICH_REG_##name##_SR	= base + 0x06,	/* byte - status register */ \
126 	ICH_REG_##name##_PICB	= base + 0x08,	/* word - position in current buffer */ \
127 	ICH_REG_##name##_PIV	= base + 0x0a,	/* byte - prefetched index value */ \
128 	ICH_REG_##name##_CR	= base + 0x0b,	/* byte - control register */ \
129 };
130 
131 /* busmaster blocks */
132 DEFINE_REGSET(OFF, 0);		/* offset */
133 DEFINE_REGSET(PI, 0x00);	/* PCM in */
134 DEFINE_REGSET(PO, 0x10);	/* PCM out */
135 DEFINE_REGSET(MC, 0x20);	/* Mic in */
136 
137 /* ICH4 busmaster blocks */
138 DEFINE_REGSET(MC2, 0x40);	/* Mic in 2 */
139 DEFINE_REGSET(PI2, 0x50);	/* PCM in 2 */
140 DEFINE_REGSET(SP, 0x60);	/* SPDIF out */
141 
142 /* values for each busmaster block */
143 
144 /* LVI */
145 #define ICH_REG_LVI_MASK		0x1f
146 
147 /* SR */
148 #define ICH_FIFOE			0x10	/* FIFO error */
149 #define ICH_BCIS			0x08	/* buffer completion interrupt status */
150 #define ICH_LVBCI			0x04	/* last valid buffer completion interrupt */
151 #define ICH_CELV			0x02	/* current equals last valid */
152 #define ICH_DCH				0x01	/* DMA controller halted */
153 
154 /* PIV */
155 #define ICH_REG_PIV_MASK		0x1f	/* mask */
156 
157 /* CR */
158 #define ICH_IOCE			0x10	/* interrupt on completion enable */
159 #define ICH_FEIE			0x08	/* fifo error interrupt enable */
160 #define ICH_LVBIE			0x04	/* last valid buffer interrupt enable */
161 #define ICH_RESETREGS			0x02	/* reset busmaster registers */
162 #define ICH_STARTBM			0x01	/* start busmaster operation */
163 
164 
165 /* global block */
166 #define ICH_REG_GLOB_CNT		0x2c	/* dword - global control */
167 #define   ICH_PCM_SPDIF_MASK	0xc0000000	/* s/pdif pcm slot mask (ICH4) */
168 #define   ICH_PCM_SPDIF_NONE	0x00000000	/* reserved - undefined */
169 #define   ICH_PCM_SPDIF_78	0x40000000	/* s/pdif pcm on slots 7&8 */
170 #define   ICH_PCM_SPDIF_69	0x80000000	/* s/pdif pcm on slots 6&9 */
171 #define   ICH_PCM_SPDIF_1011	0xc0000000	/* s/pdif pcm on slots 10&11 */
172 #define   ICH_PCM_20BIT		0x00400000	/* 20-bit samples (ICH4) */
173 #define   ICH_PCM_246_MASK	0x00300000	/* chan mask (not all chips) */
174 #define   ICH_PCM_8		0x00300000      /* 8 channels (not all chips) */
175 #define   ICH_PCM_6		0x00200000	/* 6 channels (not all chips) */
176 #define   ICH_PCM_4		0x00100000	/* 4 channels (not all chips) */
177 #define   ICH_PCM_2		0x00000000	/* 2 channels (stereo) */
178 #define   ICH_SIS_PCM_246_MASK	0x000000c0	/* 6 channels (SIS7012) */
179 #define   ICH_SIS_PCM_6		0x00000080	/* 6 channels (SIS7012) */
180 #define   ICH_SIS_PCM_4		0x00000040	/* 4 channels (SIS7012) */
181 #define   ICH_SIS_PCM_2		0x00000000	/* 2 channels (SIS7012) */
182 #define   ICH_TRIE		0x00000040	/* tertiary resume interrupt enable */
183 #define   ICH_SRIE		0x00000020	/* secondary resume interrupt enable */
184 #define   ICH_PRIE		0x00000010	/* primary resume interrupt enable */
185 #define   ICH_ACLINK		0x00000008	/* AClink shut off */
186 #define   ICH_AC97WARM		0x00000004	/* AC'97 warm reset */
187 #define   ICH_AC97COLD		0x00000002	/* AC'97 cold reset */
188 #define   ICH_GIE		0x00000001	/* GPI interrupt enable */
189 #define ICH_REG_GLOB_STA		0x30	/* dword - global status */
190 #define   ICH_TRI		0x20000000	/* ICH4: tertiary (AC_SDIN2) resume interrupt */
191 #define   ICH_TCR		0x10000000	/* ICH4: tertiary (AC_SDIN2) codec ready */
192 #define   ICH_BCS		0x08000000	/* ICH4: bit clock stopped */
193 #define   ICH_SPINT		0x04000000	/* ICH4: S/PDIF interrupt */
194 #define   ICH_P2INT		0x02000000	/* ICH4: PCM2-In interrupt */
195 #define   ICH_M2INT		0x01000000	/* ICH4: Mic2-In interrupt */
196 #define   ICH_SAMPLE_CAP	0x00c00000	/* ICH4: sample capability bits (RO) */
197 #define   ICH_SAMPLE_16_20	0x00400000	/* ICH4: 16- and 20-bit samples */
198 #define   ICH_MULTICHAN_CAP	0x00300000	/* ICH4: multi-channel capability bits (RO) */
199 #define   ICH_SIS_TRI		0x00080000	/* SIS: tertiary resume irq */
200 #define   ICH_SIS_TCR		0x00040000	/* SIS: tertiary codec ready */
201 #define   ICH_MD3		0x00020000	/* modem power down semaphore */
202 #define   ICH_AD3		0x00010000	/* audio power down semaphore */
203 #define   ICH_RCS		0x00008000	/* read completion status */
204 #define   ICH_BIT3		0x00004000	/* bit 3 slot 12 */
205 #define   ICH_BIT2		0x00002000	/* bit 2 slot 12 */
206 #define   ICH_BIT1		0x00001000	/* bit 1 slot 12 */
207 #define   ICH_SRI		0x00000800	/* secondary (AC_SDIN1) resume interrupt */
208 #define   ICH_PRI		0x00000400	/* primary (AC_SDIN0) resume interrupt */
209 #define   ICH_SCR		0x00000200	/* secondary (AC_SDIN1) codec ready */
210 #define   ICH_PCR		0x00000100	/* primary (AC_SDIN0) codec ready */
211 #define   ICH_MCINT		0x00000080	/* MIC capture interrupt */
212 #define   ICH_POINT		0x00000040	/* playback interrupt */
213 #define   ICH_PIINT		0x00000020	/* capture interrupt */
214 #define   ICH_NVSPINT		0x00000010	/* nforce spdif interrupt */
215 #define   ICH_MOINT		0x00000004	/* modem playback interrupt */
216 #define   ICH_MIINT		0x00000002	/* modem capture interrupt */
217 #define   ICH_GSCI		0x00000001	/* GPI status change interrupt */
218 #define ICH_REG_ACC_SEMA		0x34	/* byte - codec write semaphore */
219 #define   ICH_CAS		0x01		/* codec access semaphore */
220 #define ICH_REG_SDM		0x80
221 #define   ICH_DI2L_MASK		0x000000c0	/* PCM In 2, Mic In 2 data in line */
222 #define   ICH_DI2L_SHIFT	6
223 #define   ICH_DI1L_MASK		0x00000030	/* PCM In 1, Mic In 1 data in line */
224 #define   ICH_DI1L_SHIFT	4
225 #define   ICH_SE		0x00000008	/* steer enable */
226 #define   ICH_LDI_MASK		0x00000003	/* last codec read data input */
227 
228 #define ICH_MAX_FRAGS		32		/* max hw frags */
229 
230 
231 /*
232  * registers for Ali5455
233  */
234 
235 /* ALi 5455 busmaster blocks */
236 DEFINE_REGSET(AL_PI, 0x40);	/* ALi PCM in */
237 DEFINE_REGSET(AL_PO, 0x50);	/* Ali PCM out */
238 DEFINE_REGSET(AL_MC, 0x60);	/* Ali Mic in */
239 DEFINE_REGSET(AL_CDC_SPO, 0x70);	/* Ali Codec SPDIF out */
240 DEFINE_REGSET(AL_CENTER, 0x80);		/* Ali center out */
241 DEFINE_REGSET(AL_LFE, 0x90);		/* Ali center out */
242 DEFINE_REGSET(AL_CLR_SPI, 0xa0);	/* Ali Controller SPDIF in */
243 DEFINE_REGSET(AL_CLR_SPO, 0xb0);	/* Ali Controller SPDIF out */
244 DEFINE_REGSET(AL_I2S, 0xc0);	/* Ali I2S in */
245 DEFINE_REGSET(AL_PI2, 0xd0);	/* Ali PCM2 in */
246 DEFINE_REGSET(AL_MC2, 0xe0);	/* Ali Mic2 in */
247 
248 enum {
249 	ICH_REG_ALI_SCR = 0x00,		/* System Control Register */
250 	ICH_REG_ALI_SSR = 0x04,		/* System Status Register  */
251 	ICH_REG_ALI_DMACR = 0x08,	/* DMA Control Register    */
252 	ICH_REG_ALI_FIFOCR1 = 0x0c,	/* FIFO Control Register 1  */
253 	ICH_REG_ALI_INTERFACECR = 0x10,	/* Interface Control Register */
254 	ICH_REG_ALI_INTERRUPTCR = 0x14,	/* Interrupt control Register */
255 	ICH_REG_ALI_INTERRUPTSR = 0x18,	/* Interrupt  Status Register */
256 	ICH_REG_ALI_FIFOCR2 = 0x1c,	/* FIFO Control Register 2   */
257 	ICH_REG_ALI_CPR = 0x20,		/* Command Port Register     */
258 	ICH_REG_ALI_CPR_ADDR = 0x22,	/* ac97 addr write */
259 	ICH_REG_ALI_SPR = 0x24,		/* Status Port Register      */
260 	ICH_REG_ALI_SPR_ADDR = 0x26,	/* ac97 addr read */
261 	ICH_REG_ALI_FIFOCR3 = 0x2c,	/* FIFO Control Register 3  */
262 	ICH_REG_ALI_TTSR = 0x30,	/* Transmit Tag Slot Register */
263 	ICH_REG_ALI_RTSR = 0x34,	/* Receive Tag Slot  Register */
264 	ICH_REG_ALI_CSPSR = 0x38,	/* Command/Status Port Status Register */
265 	ICH_REG_ALI_CAS = 0x3c,		/* Codec Write Semaphore Register */
266 	ICH_REG_ALI_HWVOL = 0xf0,	/* hardware volume control/status */
267 	ICH_REG_ALI_I2SCR = 0xf4,	/* I2S control/status */
268 	ICH_REG_ALI_SPDIFCSR = 0xf8,	/* spdif channel status register  */
269 	ICH_REG_ALI_SPDIFICS = 0xfc,	/* spdif interface control/status  */
270 };
271 
272 #define ALI_CAS_SEM_BUSY	0x80000000
273 #define ALI_CPR_ADDR_SECONDARY	0x100
274 #define ALI_CPR_ADDR_READ	0x80
275 #define ALI_CSPSR_CODEC_READY	0x08
276 #define ALI_CSPSR_READ_OK	0x02
277 #define ALI_CSPSR_WRITE_OK	0x01
278 
279 /* interrupts for the whole chip by interrupt status register finish */
280 
281 #define ALI_INT_MICIN2		(1<<26)
282 #define ALI_INT_PCMIN2		(1<<25)
283 #define ALI_INT_I2SIN		(1<<24)
284 #define ALI_INT_SPDIFOUT	(1<<23)	/* controller spdif out INTERRUPT */
285 #define ALI_INT_SPDIFIN		(1<<22)
286 #define ALI_INT_LFEOUT		(1<<21)
287 #define ALI_INT_CENTEROUT	(1<<20)
288 #define ALI_INT_CODECSPDIFOUT	(1<<19)
289 #define ALI_INT_MICIN		(1<<18)
290 #define ALI_INT_PCMOUT		(1<<17)
291 #define ALI_INT_PCMIN		(1<<16)
292 #define ALI_INT_CPRAIS		(1<<7)	/* command port available */
293 #define ALI_INT_SPRAIS		(1<<5)	/* status port available */
294 #define ALI_INT_GPIO		(1<<1)
295 #define ALI_INT_MASK		(ALI_INT_SPDIFOUT|ALI_INT_CODECSPDIFOUT|\
296 				 ALI_INT_MICIN|ALI_INT_PCMOUT|ALI_INT_PCMIN)
297 
298 #define ICH_ALI_SC_RESET	(1<<31)	/* master reset */
299 #define ICH_ALI_SC_AC97_DBL	(1<<30)
300 #define ICH_ALI_SC_CODEC_SPDF	(3<<20)	/* 1=7/8, 2=6/9, 3=10/11 */
301 #define ICH_ALI_SC_IN_BITS	(3<<18)
302 #define ICH_ALI_SC_OUT_BITS	(3<<16)
303 #define ICH_ALI_SC_6CH_CFG	(3<<14)
304 #define ICH_ALI_SC_PCM_4	(1<<8)
305 #define ICH_ALI_SC_PCM_6	(2<<8)
306 #define ICH_ALI_SC_PCM_246_MASK	(3<<8)
307 
308 #define ICH_ALI_SS_SEC_ID	(3<<5)
309 #define ICH_ALI_SS_PRI_ID	(3<<3)
310 
311 #define ICH_ALI_IF_AC97SP	(1<<21)
312 #define ICH_ALI_IF_MC		(1<<20)
313 #define ICH_ALI_IF_PI		(1<<19)
314 #define ICH_ALI_IF_MC2		(1<<18)
315 #define ICH_ALI_IF_PI2		(1<<17)
316 #define ICH_ALI_IF_LINE_SRC	(1<<15)	/* 0/1 = slot 3/6 */
317 #define ICH_ALI_IF_MIC_SRC	(1<<14)	/* 0/1 = slot 3/6 */
318 #define ICH_ALI_IF_SPDF_SRC	(3<<12)	/* 00 = PCM, 01 = AC97-in, 10 = spdif-in, 11 = i2s */
319 #define ICH_ALI_IF_AC97_OUT	(3<<8)	/* 00 = PCM, 10 = spdif-in, 11 = i2s */
320 #define ICH_ALI_IF_PO_SPDF	(1<<3)
321 #define ICH_ALI_IF_PO		(1<<1)
322 
323 /*
324  *
325  */
326 
327 enum {
328 	ICHD_PCMIN,
329 	ICHD_PCMOUT,
330 	ICHD_MIC,
331 	ICHD_MIC2,
332 	ICHD_PCM2IN,
333 	ICHD_SPBAR,
334 	ICHD_LAST = ICHD_SPBAR
335 };
336 enum {
337 	NVD_PCMIN,
338 	NVD_PCMOUT,
339 	NVD_MIC,
340 	NVD_SPBAR,
341 	NVD_LAST = NVD_SPBAR
342 };
343 enum {
344 	ALID_PCMIN,
345 	ALID_PCMOUT,
346 	ALID_MIC,
347 	ALID_AC97SPDIFOUT,
348 	ALID_SPDIFIN,
349 	ALID_SPDIFOUT,
350 	ALID_LAST = ALID_SPDIFOUT
351 };
352 
353 #define get_ichdev(substream) (substream->runtime->private_data)
354 
355 struct ichdev {
356 	unsigned int ichd;			/* ich device number */
357 	unsigned long reg_offset;		/* offset to bmaddr */
358 	u32 *bdbar;				/* CPU address (32bit) */
359 	unsigned int bdbar_addr;		/* PCI bus address (32bit) */
360 	struct snd_pcm_substream *substream;
361 	unsigned int physbuf;			/* physical address (32bit) */
362         unsigned int size;
363         unsigned int fragsize;
364         unsigned int fragsize1;
365         unsigned int position;
366 	unsigned int pos_shift;
367 	unsigned int last_pos;
368         int frags;
369         int lvi;
370         int lvi_frag;
371 	int civ;
372 	int ack;
373 	int ack_reload;
374 	unsigned int ack_bit;
375 	unsigned int roff_sr;
376 	unsigned int roff_picb;
377 	unsigned int int_sta_mask;		/* interrupt status mask */
378 	unsigned int ali_slot;			/* ALI DMA slot */
379 	struct ac97_pcm *pcm;
380 	int pcm_open_flag;
381 	unsigned int page_attr_changed: 1;
382 	unsigned int suspended: 1;
383 };
384 
385 struct intel8x0 {
386 	unsigned int device_type;
387 
388 	int irq;
389 
390 	void __iomem *addr;
391 	void __iomem *bmaddr;
392 
393 	struct pci_dev *pci;
394 	struct snd_card *card;
395 
396 	int pcm_devs;
397 	struct snd_pcm *pcm[6];
398 	struct ichdev ichd[6];
399 
400 	unsigned multi4: 1,
401 		 multi6: 1,
402 		 multi8 :1,
403 		 dra: 1,
404 		 smp20bit: 1;
405 	unsigned in_ac97_init: 1,
406 		 in_sdin_init: 1;
407 	unsigned in_measurement: 1;	/* during ac97 clock measurement */
408 	unsigned fix_nocache: 1; 	/* workaround for 440MX */
409 	unsigned buggy_irq: 1;		/* workaround for buggy mobos */
410 	unsigned xbox: 1;		/* workaround for Xbox AC'97 detection */
411 	unsigned buggy_semaphore: 1;	/* workaround for buggy codec semaphore */
412 	unsigned inside_vm: 1;		/* enable VM optimization */
413 
414 	int spdif_idx;	/* SPDIF BAR index; *_SPBAR or -1 if use PCMOUT */
415 	unsigned int sdm_saved;	/* SDM reg value */
416 
417 	struct snd_ac97_bus *ac97_bus;
418 	struct snd_ac97 *ac97[3];
419 	unsigned int ac97_sdin[3];
420 	unsigned int max_codecs, ncodecs;
421 	unsigned int *codec_bit;
422 	unsigned int codec_isr_bits;
423 	unsigned int codec_ready_bits;
424 
425 	spinlock_t reg_lock;
426 
427 	u32 bdbars_count;
428 	struct snd_dma_buffer bdbars;
429 	u32 int_sta_reg;		/* interrupt status register */
430 	u32 int_sta_mask;		/* interrupt status mask */
431 };
432 
433 static const struct pci_device_id snd_intel8x0_ids[] = {
434 	{ PCI_VDEVICE(INTEL, 0x2415), DEVICE_INTEL },	/* 82801AA */
435 	{ PCI_VDEVICE(INTEL, 0x2425), DEVICE_INTEL },	/* 82901AB */
436 	{ PCI_VDEVICE(INTEL, 0x2445), DEVICE_INTEL },	/* 82801BA */
437 	{ PCI_VDEVICE(INTEL, 0x2485), DEVICE_INTEL },	/* ICH3 */
438 	{ PCI_VDEVICE(INTEL, 0x24c5), DEVICE_INTEL_ICH4 }, /* ICH4 */
439 	{ PCI_VDEVICE(INTEL, 0x24d5), DEVICE_INTEL_ICH4 }, /* ICH5 */
440 	{ PCI_VDEVICE(INTEL, 0x25a6), DEVICE_INTEL_ICH4 }, /* ESB */
441 	{ PCI_VDEVICE(INTEL, 0x266e), DEVICE_INTEL_ICH4 }, /* ICH6 */
442 	{ PCI_VDEVICE(INTEL, 0x27de), DEVICE_INTEL_ICH4 }, /* ICH7 */
443 	{ PCI_VDEVICE(INTEL, 0x2698), DEVICE_INTEL_ICH4 }, /* ESB2 */
444 	{ PCI_VDEVICE(INTEL, 0x7195), DEVICE_INTEL },	/* 440MX */
445 	{ PCI_VDEVICE(SI, 0x7012), DEVICE_SIS },	/* SI7012 */
446 	{ PCI_VDEVICE(NVIDIA, 0x01b1), DEVICE_NFORCE },	/* NFORCE */
447 	{ PCI_VDEVICE(NVIDIA, 0x003a), DEVICE_NFORCE },	/* MCP04 */
448 	{ PCI_VDEVICE(NVIDIA, 0x006a), DEVICE_NFORCE },	/* NFORCE2 */
449 	{ PCI_VDEVICE(NVIDIA, 0x0059), DEVICE_NFORCE },	/* CK804 */
450 	{ PCI_VDEVICE(NVIDIA, 0x008a), DEVICE_NFORCE },	/* CK8 */
451 	{ PCI_VDEVICE(NVIDIA, 0x00da), DEVICE_NFORCE },	/* NFORCE3 */
452 	{ PCI_VDEVICE(NVIDIA, 0x00ea), DEVICE_NFORCE },	/* CK8S */
453 	{ PCI_VDEVICE(NVIDIA, 0x026b), DEVICE_NFORCE },	/* MCP51 */
454 	{ PCI_VDEVICE(AMD, 0x746d), DEVICE_INTEL },	/* AMD8111 */
455 	{ PCI_VDEVICE(AMD, 0x7445), DEVICE_INTEL },	/* AMD768 */
456 	{ PCI_VDEVICE(AL, 0x5455), DEVICE_ALI },   /* Ali5455 */
457 	{ 0, }
458 };
459 
460 MODULE_DEVICE_TABLE(pci, snd_intel8x0_ids);
461 
462 /*
463  *  Lowlevel I/O - busmaster
464  */
465 
466 static inline u8 igetbyte(struct intel8x0 *chip, u32 offset)
467 {
468 	return ioread8(chip->bmaddr + offset);
469 }
470 
471 static inline u16 igetword(struct intel8x0 *chip, u32 offset)
472 {
473 	return ioread16(chip->bmaddr + offset);
474 }
475 
476 static inline u32 igetdword(struct intel8x0 *chip, u32 offset)
477 {
478 	return ioread32(chip->bmaddr + offset);
479 }
480 
481 static inline void iputbyte(struct intel8x0 *chip, u32 offset, u8 val)
482 {
483 	iowrite8(val, chip->bmaddr + offset);
484 }
485 
486 static inline void iputword(struct intel8x0 *chip, u32 offset, u16 val)
487 {
488 	iowrite16(val, chip->bmaddr + offset);
489 }
490 
491 static inline void iputdword(struct intel8x0 *chip, u32 offset, u32 val)
492 {
493 	iowrite32(val, chip->bmaddr + offset);
494 }
495 
496 /*
497  *  Lowlevel I/O - AC'97 registers
498  */
499 
500 static inline u16 iagetword(struct intel8x0 *chip, u32 offset)
501 {
502 	return ioread16(chip->addr + offset);
503 }
504 
505 static inline void iaputword(struct intel8x0 *chip, u32 offset, u16 val)
506 {
507 	iowrite16(val, chip->addr + offset);
508 }
509 
510 /*
511  *  Basic I/O
512  */
513 
514 /*
515  * access to AC97 codec via normal i/o (for ICH and SIS7012)
516  */
517 
518 static int snd_intel8x0_codec_semaphore(struct intel8x0 *chip, unsigned int codec)
519 {
520 	int time;
521 
522 	if (codec > 2)
523 		return -EIO;
524 	if (chip->in_sdin_init) {
525 		/* we don't know the ready bit assignment at the moment */
526 		/* so we check any */
527 		codec = chip->codec_isr_bits;
528 	} else {
529 		codec = chip->codec_bit[chip->ac97_sdin[codec]];
530 	}
531 
532 	/* codec ready ? */
533 	if ((igetdword(chip, ICHREG(GLOB_STA)) & codec) == 0)
534 		return -EIO;
535 
536 	if (chip->buggy_semaphore)
537 		return 0; /* just ignore ... */
538 
539 	/* Anyone holding a semaphore for 1 msec should be shot... */
540 	time = 100;
541       	do {
542       		if (!(igetbyte(chip, ICHREG(ACC_SEMA)) & ICH_CAS))
543       			return 0;
544 		udelay(10);
545 	} while (time--);
546 
547 	/* access to some forbidden (non existent) ac97 registers will not
548 	 * reset the semaphore. So even if you don't get the semaphore, still
549 	 * continue the access. We don't need the semaphore anyway. */
550 	dev_err(chip->card->dev,
551 		"codec_semaphore: semaphore is not ready [0x%x][0x%x]\n",
552 			igetbyte(chip, ICHREG(ACC_SEMA)), igetdword(chip, ICHREG(GLOB_STA)));
553 	iagetword(chip, 0);	/* clear semaphore flag */
554 	/* I don't care about the semaphore */
555 	return -EBUSY;
556 }
557 
558 static void snd_intel8x0_codec_write(struct snd_ac97 *ac97,
559 				     unsigned short reg,
560 				     unsigned short val)
561 {
562 	struct intel8x0 *chip = ac97->private_data;
563 
564 	if (snd_intel8x0_codec_semaphore(chip, ac97->num) < 0) {
565 		if (! chip->in_ac97_init)
566 			dev_err(chip->card->dev,
567 				"codec_write %d: semaphore is not ready for register 0x%x\n",
568 				ac97->num, reg);
569 	}
570 	iaputword(chip, reg + ac97->num * 0x80, val);
571 }
572 
573 static unsigned short snd_intel8x0_codec_read(struct snd_ac97 *ac97,
574 					      unsigned short reg)
575 {
576 	struct intel8x0 *chip = ac97->private_data;
577 	unsigned short res;
578 	unsigned int tmp;
579 
580 	if (snd_intel8x0_codec_semaphore(chip, ac97->num) < 0) {
581 		if (! chip->in_ac97_init)
582 			dev_err(chip->card->dev,
583 				"codec_read %d: semaphore is not ready for register 0x%x\n",
584 				ac97->num, reg);
585 		res = 0xffff;
586 	} else {
587 		res = iagetword(chip, reg + ac97->num * 0x80);
588 		if ((tmp = igetdword(chip, ICHREG(GLOB_STA))) & ICH_RCS) {
589 			/* reset RCS and preserve other R/WC bits */
590 			iputdword(chip, ICHREG(GLOB_STA), tmp &
591 				  ~(chip->codec_ready_bits | ICH_GSCI));
592 			if (! chip->in_ac97_init)
593 				dev_err(chip->card->dev,
594 					"codec_read %d: read timeout for register 0x%x\n",
595 					ac97->num, reg);
596 			res = 0xffff;
597 		}
598 	}
599 	return res;
600 }
601 
602 static void snd_intel8x0_codec_read_test(struct intel8x0 *chip,
603 					 unsigned int codec)
604 {
605 	unsigned int tmp;
606 
607 	if (snd_intel8x0_codec_semaphore(chip, codec) >= 0) {
608 		iagetword(chip, codec * 0x80);
609 		if ((tmp = igetdword(chip, ICHREG(GLOB_STA))) & ICH_RCS) {
610 			/* reset RCS and preserve other R/WC bits */
611 			iputdword(chip, ICHREG(GLOB_STA), tmp &
612 				  ~(chip->codec_ready_bits | ICH_GSCI));
613 		}
614 	}
615 }
616 
617 /*
618  * access to AC97 for Ali5455
619  */
620 static int snd_intel8x0_ali_codec_ready(struct intel8x0 *chip, int mask)
621 {
622 	int count = 0;
623 	for (count = 0; count < 0x7f; count++) {
624 		int val = igetbyte(chip, ICHREG(ALI_CSPSR));
625 		if (val & mask)
626 			return 0;
627 	}
628 	if (! chip->in_ac97_init)
629 		dev_warn(chip->card->dev, "AC97 codec ready timeout.\n");
630 	return -EBUSY;
631 }
632 
633 static int snd_intel8x0_ali_codec_semaphore(struct intel8x0 *chip)
634 {
635 	int time = 100;
636 	if (chip->buggy_semaphore)
637 		return 0; /* just ignore ... */
638 	while (--time && (igetdword(chip, ICHREG(ALI_CAS)) & ALI_CAS_SEM_BUSY))
639 		udelay(1);
640 	if (! time && ! chip->in_ac97_init)
641 		dev_warn(chip->card->dev, "ali_codec_semaphore timeout\n");
642 	return snd_intel8x0_ali_codec_ready(chip, ALI_CSPSR_CODEC_READY);
643 }
644 
645 static unsigned short snd_intel8x0_ali_codec_read(struct snd_ac97 *ac97, unsigned short reg)
646 {
647 	struct intel8x0 *chip = ac97->private_data;
648 	unsigned short data = 0xffff;
649 
650 	if (snd_intel8x0_ali_codec_semaphore(chip))
651 		goto __err;
652 	reg |= ALI_CPR_ADDR_READ;
653 	if (ac97->num)
654 		reg |= ALI_CPR_ADDR_SECONDARY;
655 	iputword(chip, ICHREG(ALI_CPR_ADDR), reg);
656 	if (snd_intel8x0_ali_codec_ready(chip, ALI_CSPSR_READ_OK))
657 		goto __err;
658 	data = igetword(chip, ICHREG(ALI_SPR));
659  __err:
660 	return data;
661 }
662 
663 static void snd_intel8x0_ali_codec_write(struct snd_ac97 *ac97, unsigned short reg,
664 					 unsigned short val)
665 {
666 	struct intel8x0 *chip = ac97->private_data;
667 
668 	if (snd_intel8x0_ali_codec_semaphore(chip))
669 		return;
670 	iputword(chip, ICHREG(ALI_CPR), val);
671 	if (ac97->num)
672 		reg |= ALI_CPR_ADDR_SECONDARY;
673 	iputword(chip, ICHREG(ALI_CPR_ADDR), reg);
674 	snd_intel8x0_ali_codec_ready(chip, ALI_CSPSR_WRITE_OK);
675 }
676 
677 
678 /*
679  * DMA I/O
680  */
681 static void snd_intel8x0_setup_periods(struct intel8x0 *chip, struct ichdev *ichdev)
682 {
683 	int idx;
684 	u32 *bdbar = ichdev->bdbar;
685 	unsigned long port = ichdev->reg_offset;
686 
687 	iputdword(chip, port + ICH_REG_OFF_BDBAR, ichdev->bdbar_addr);
688 	if (ichdev->size == ichdev->fragsize) {
689 		ichdev->ack_reload = ichdev->ack = 2;
690 		ichdev->fragsize1 = ichdev->fragsize >> 1;
691 		for (idx = 0; idx < (ICH_REG_LVI_MASK + 1) * 2; idx += 4) {
692 			bdbar[idx + 0] = cpu_to_le32(ichdev->physbuf);
693 			bdbar[idx + 1] = cpu_to_le32(0x80000000 | /* interrupt on completion */
694 						     ichdev->fragsize1 >> ichdev->pos_shift);
695 			bdbar[idx + 2] = cpu_to_le32(ichdev->physbuf + (ichdev->size >> 1));
696 			bdbar[idx + 3] = cpu_to_le32(0x80000000 | /* interrupt on completion */
697 						     ichdev->fragsize1 >> ichdev->pos_shift);
698 		}
699 		ichdev->frags = 2;
700 	} else {
701 		ichdev->ack_reload = ichdev->ack = 1;
702 		ichdev->fragsize1 = ichdev->fragsize;
703 		for (idx = 0; idx < (ICH_REG_LVI_MASK + 1) * 2; idx += 2) {
704 			bdbar[idx + 0] = cpu_to_le32(ichdev->physbuf +
705 						     (((idx >> 1) * ichdev->fragsize) %
706 						      ichdev->size));
707 			bdbar[idx + 1] = cpu_to_le32(0x80000000 | /* interrupt on completion */
708 						     ichdev->fragsize >> ichdev->pos_shift);
709 #if 0
710 			dev_dbg(chip->card->dev, "bdbar[%i] = 0x%x [0x%x]\n",
711 			       idx + 0, bdbar[idx + 0], bdbar[idx + 1]);
712 #endif
713 		}
714 		ichdev->frags = ichdev->size / ichdev->fragsize;
715 	}
716 	iputbyte(chip, port + ICH_REG_OFF_LVI, ichdev->lvi = ICH_REG_LVI_MASK);
717 	ichdev->civ = 0;
718 	iputbyte(chip, port + ICH_REG_OFF_CIV, 0);
719 	ichdev->lvi_frag = ICH_REG_LVI_MASK % ichdev->frags;
720 	ichdev->position = 0;
721 #if 0
722 	dev_dbg(chip->card->dev,
723 		"lvi_frag = %i, frags = %i, period_size = 0x%x, period_size1 = 0x%x\n",
724 	       ichdev->lvi_frag, ichdev->frags, ichdev->fragsize,
725 	       ichdev->fragsize1);
726 #endif
727 	/* clear interrupts */
728 	iputbyte(chip, port + ichdev->roff_sr, ICH_FIFOE | ICH_BCIS | ICH_LVBCI);
729 }
730 
731 #ifdef __i386__
732 /*
733  * Intel 82443MX running a 100MHz processor system bus has a hardware bug,
734  * which aborts PCI busmaster for audio transfer.  A workaround is to set
735  * the pages as non-cached.  For details, see the errata in
736  *	http://download.intel.com/design/chipsets/specupdt/24505108.pdf
737  */
738 static void fill_nocache(void *buf, int size, int nocache)
739 {
740 	size = (size + PAGE_SIZE - 1) >> PAGE_SHIFT;
741 	if (nocache)
742 		set_pages_uc(virt_to_page(buf), size);
743 	else
744 		set_pages_wb(virt_to_page(buf), size);
745 }
746 #else
747 #define fill_nocache(buf, size, nocache) do { ; } while (0)
748 #endif
749 
750 /*
751  *  Interrupt handler
752  */
753 
754 static inline void snd_intel8x0_update(struct intel8x0 *chip, struct ichdev *ichdev)
755 {
756 	unsigned long port = ichdev->reg_offset;
757 	unsigned long flags;
758 	int status, civ, i, step;
759 	int ack = 0;
760 
761 	spin_lock_irqsave(&chip->reg_lock, flags);
762 	status = igetbyte(chip, port + ichdev->roff_sr);
763 	civ = igetbyte(chip, port + ICH_REG_OFF_CIV);
764 	if (!(status & ICH_BCIS)) {
765 		step = 0;
766 	} else if (civ == ichdev->civ) {
767 		// snd_printd("civ same %d\n", civ);
768 		step = 1;
769 		ichdev->civ++;
770 		ichdev->civ &= ICH_REG_LVI_MASK;
771 	} else {
772 		step = civ - ichdev->civ;
773 		if (step < 0)
774 			step += ICH_REG_LVI_MASK + 1;
775 		// if (step != 1)
776 		//	snd_printd("step = %d, %d -> %d\n", step, ichdev->civ, civ);
777 		ichdev->civ = civ;
778 	}
779 
780 	ichdev->position += step * ichdev->fragsize1;
781 	if (! chip->in_measurement)
782 		ichdev->position %= ichdev->size;
783 	ichdev->lvi += step;
784 	ichdev->lvi &= ICH_REG_LVI_MASK;
785 	iputbyte(chip, port + ICH_REG_OFF_LVI, ichdev->lvi);
786 	for (i = 0; i < step; i++) {
787 		ichdev->lvi_frag++;
788 		ichdev->lvi_frag %= ichdev->frags;
789 		ichdev->bdbar[ichdev->lvi * 2] = cpu_to_le32(ichdev->physbuf + ichdev->lvi_frag * ichdev->fragsize1);
790 #if 0
791 	dev_dbg(chip->card->dev,
792 		"new: bdbar[%i] = 0x%x [0x%x], prefetch = %i, all = 0x%x, 0x%x\n",
793 	       ichdev->lvi * 2, ichdev->bdbar[ichdev->lvi * 2],
794 	       ichdev->bdbar[ichdev->lvi * 2 + 1], inb(ICH_REG_OFF_PIV + port),
795 	       inl(port + 4), inb(port + ICH_REG_OFF_CR));
796 #endif
797 		if (--ichdev->ack == 0) {
798 			ichdev->ack = ichdev->ack_reload;
799 			ack = 1;
800 		}
801 	}
802 	spin_unlock_irqrestore(&chip->reg_lock, flags);
803 	if (ack && ichdev->substream) {
804 		snd_pcm_period_elapsed(ichdev->substream);
805 	}
806 	iputbyte(chip, port + ichdev->roff_sr,
807 		 status & (ICH_FIFOE | ICH_BCIS | ICH_LVBCI));
808 }
809 
810 static irqreturn_t snd_intel8x0_interrupt(int irq, void *dev_id)
811 {
812 	struct intel8x0 *chip = dev_id;
813 	struct ichdev *ichdev;
814 	unsigned int status;
815 	unsigned int i;
816 
817 	status = igetdword(chip, chip->int_sta_reg);
818 	if (status == 0xffffffff)	/* we are not yet resumed */
819 		return IRQ_NONE;
820 
821 	if ((status & chip->int_sta_mask) == 0) {
822 		if (status) {
823 			/* ack */
824 			iputdword(chip, chip->int_sta_reg, status);
825 			if (! chip->buggy_irq)
826 				status = 0;
827 		}
828 		return IRQ_RETVAL(status);
829 	}
830 
831 	for (i = 0; i < chip->bdbars_count; i++) {
832 		ichdev = &chip->ichd[i];
833 		if (status & ichdev->int_sta_mask)
834 			snd_intel8x0_update(chip, ichdev);
835 	}
836 
837 	/* ack them */
838 	iputdword(chip, chip->int_sta_reg, status & chip->int_sta_mask);
839 
840 	return IRQ_HANDLED;
841 }
842 
843 /*
844  *  PCM part
845  */
846 
847 static int snd_intel8x0_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
848 {
849 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
850 	struct ichdev *ichdev = get_ichdev(substream);
851 	unsigned char val = 0;
852 	unsigned long port = ichdev->reg_offset;
853 
854 	switch (cmd) {
855 	case SNDRV_PCM_TRIGGER_RESUME:
856 		ichdev->suspended = 0;
857 		/* fallthru */
858 	case SNDRV_PCM_TRIGGER_START:
859 	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
860 		val = ICH_IOCE | ICH_STARTBM;
861 		ichdev->last_pos = ichdev->position;
862 		break;
863 	case SNDRV_PCM_TRIGGER_SUSPEND:
864 		ichdev->suspended = 1;
865 		/* fallthru */
866 	case SNDRV_PCM_TRIGGER_STOP:
867 		val = 0;
868 		break;
869 	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
870 		val = ICH_IOCE;
871 		break;
872 	default:
873 		return -EINVAL;
874 	}
875 	iputbyte(chip, port + ICH_REG_OFF_CR, val);
876 	if (cmd == SNDRV_PCM_TRIGGER_STOP) {
877 		/* wait until DMA stopped */
878 		while (!(igetbyte(chip, port + ichdev->roff_sr) & ICH_DCH)) ;
879 		/* reset whole DMA things */
880 		iputbyte(chip, port + ICH_REG_OFF_CR, ICH_RESETREGS);
881 	}
882 	return 0;
883 }
884 
885 static int snd_intel8x0_ali_trigger(struct snd_pcm_substream *substream, int cmd)
886 {
887 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
888 	struct ichdev *ichdev = get_ichdev(substream);
889 	unsigned long port = ichdev->reg_offset;
890 	static int fiforeg[] = {
891 		ICHREG(ALI_FIFOCR1), ICHREG(ALI_FIFOCR2), ICHREG(ALI_FIFOCR3)
892 	};
893 	unsigned int val, fifo;
894 
895 	val = igetdword(chip, ICHREG(ALI_DMACR));
896 	switch (cmd) {
897 	case SNDRV_PCM_TRIGGER_RESUME:
898 		ichdev->suspended = 0;
899 		/* fallthru */
900 	case SNDRV_PCM_TRIGGER_START:
901 	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
902 		if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
903 			/* clear FIFO for synchronization of channels */
904 			fifo = igetdword(chip, fiforeg[ichdev->ali_slot / 4]);
905 			fifo &= ~(0xff << (ichdev->ali_slot % 4));
906 			fifo |= 0x83 << (ichdev->ali_slot % 4);
907 			iputdword(chip, fiforeg[ichdev->ali_slot / 4], fifo);
908 		}
909 		iputbyte(chip, port + ICH_REG_OFF_CR, ICH_IOCE);
910 		val &= ~(1 << (ichdev->ali_slot + 16)); /* clear PAUSE flag */
911 		/* start DMA */
912 		iputdword(chip, ICHREG(ALI_DMACR), val | (1 << ichdev->ali_slot));
913 		break;
914 	case SNDRV_PCM_TRIGGER_SUSPEND:
915 		ichdev->suspended = 1;
916 		/* fallthru */
917 	case SNDRV_PCM_TRIGGER_STOP:
918 	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
919 		/* pause */
920 		iputdword(chip, ICHREG(ALI_DMACR), val | (1 << (ichdev->ali_slot + 16)));
921 		iputbyte(chip, port + ICH_REG_OFF_CR, 0);
922 		while (igetbyte(chip, port + ICH_REG_OFF_CR))
923 			;
924 		if (cmd == SNDRV_PCM_TRIGGER_PAUSE_PUSH)
925 			break;
926 		/* reset whole DMA things */
927 		iputbyte(chip, port + ICH_REG_OFF_CR, ICH_RESETREGS);
928 		/* clear interrupts */
929 		iputbyte(chip, port + ICH_REG_OFF_SR,
930 			 igetbyte(chip, port + ICH_REG_OFF_SR) | 0x1e);
931 		iputdword(chip, ICHREG(ALI_INTERRUPTSR),
932 			  igetdword(chip, ICHREG(ALI_INTERRUPTSR)) & ichdev->int_sta_mask);
933 		break;
934 	default:
935 		return -EINVAL;
936 	}
937 	return 0;
938 }
939 
940 static int snd_intel8x0_hw_params(struct snd_pcm_substream *substream,
941 				  struct snd_pcm_hw_params *hw_params)
942 {
943 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
944 	struct ichdev *ichdev = get_ichdev(substream);
945 	struct snd_pcm_runtime *runtime = substream->runtime;
946 	int dbl = params_rate(hw_params) > 48000;
947 	int err;
948 
949 	if (chip->fix_nocache && ichdev->page_attr_changed) {
950 		fill_nocache(runtime->dma_area, runtime->dma_bytes, 0); /* clear */
951 		ichdev->page_attr_changed = 0;
952 	}
953 	err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
954 	if (err < 0)
955 		return err;
956 	if (chip->fix_nocache) {
957 		if (runtime->dma_area && ! ichdev->page_attr_changed) {
958 			fill_nocache(runtime->dma_area, runtime->dma_bytes, 1);
959 			ichdev->page_attr_changed = 1;
960 		}
961 	}
962 	if (ichdev->pcm_open_flag) {
963 		snd_ac97_pcm_close(ichdev->pcm);
964 		ichdev->pcm_open_flag = 0;
965 	}
966 	err = snd_ac97_pcm_open(ichdev->pcm, params_rate(hw_params),
967 				params_channels(hw_params),
968 				ichdev->pcm->r[dbl].slots);
969 	if (err >= 0) {
970 		ichdev->pcm_open_flag = 1;
971 		/* Force SPDIF setting */
972 		if (ichdev->ichd == ICHD_PCMOUT && chip->spdif_idx < 0)
973 			snd_ac97_set_rate(ichdev->pcm->r[0].codec[0], AC97_SPDIF,
974 					  params_rate(hw_params));
975 	}
976 	return err;
977 }
978 
979 static int snd_intel8x0_hw_free(struct snd_pcm_substream *substream)
980 {
981 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
982 	struct ichdev *ichdev = get_ichdev(substream);
983 
984 	if (ichdev->pcm_open_flag) {
985 		snd_ac97_pcm_close(ichdev->pcm);
986 		ichdev->pcm_open_flag = 0;
987 	}
988 	if (chip->fix_nocache && ichdev->page_attr_changed) {
989 		fill_nocache(substream->runtime->dma_area, substream->runtime->dma_bytes, 0);
990 		ichdev->page_attr_changed = 0;
991 	}
992 	return snd_pcm_lib_free_pages(substream);
993 }
994 
995 static void snd_intel8x0_setup_pcm_out(struct intel8x0 *chip,
996 				       struct snd_pcm_runtime *runtime)
997 {
998 	unsigned int cnt;
999 	int dbl = runtime->rate > 48000;
1000 
1001 	spin_lock_irq(&chip->reg_lock);
1002 	switch (chip->device_type) {
1003 	case DEVICE_ALI:
1004 		cnt = igetdword(chip, ICHREG(ALI_SCR));
1005 		cnt &= ~ICH_ALI_SC_PCM_246_MASK;
1006 		if (runtime->channels == 4 || dbl)
1007 			cnt |= ICH_ALI_SC_PCM_4;
1008 		else if (runtime->channels == 6)
1009 			cnt |= ICH_ALI_SC_PCM_6;
1010 		iputdword(chip, ICHREG(ALI_SCR), cnt);
1011 		break;
1012 	case DEVICE_SIS:
1013 		cnt = igetdword(chip, ICHREG(GLOB_CNT));
1014 		cnt &= ~ICH_SIS_PCM_246_MASK;
1015 		if (runtime->channels == 4 || dbl)
1016 			cnt |= ICH_SIS_PCM_4;
1017 		else if (runtime->channels == 6)
1018 			cnt |= ICH_SIS_PCM_6;
1019 		iputdword(chip, ICHREG(GLOB_CNT), cnt);
1020 		break;
1021 	default:
1022 		cnt = igetdword(chip, ICHREG(GLOB_CNT));
1023 		cnt &= ~(ICH_PCM_246_MASK | ICH_PCM_20BIT);
1024 		if (runtime->channels == 4 || dbl)
1025 			cnt |= ICH_PCM_4;
1026 		else if (runtime->channels == 6)
1027 			cnt |= ICH_PCM_6;
1028 		else if (runtime->channels == 8)
1029 			cnt |= ICH_PCM_8;
1030 		if (chip->device_type == DEVICE_NFORCE) {
1031 			/* reset to 2ch once to keep the 6 channel data in alignment,
1032 			 * to start from Front Left always
1033 			 */
1034 			if (cnt & ICH_PCM_246_MASK) {
1035 				iputdword(chip, ICHREG(GLOB_CNT), cnt & ~ICH_PCM_246_MASK);
1036 				spin_unlock_irq(&chip->reg_lock);
1037 				msleep(50); /* grrr... */
1038 				spin_lock_irq(&chip->reg_lock);
1039 			}
1040 		} else if (chip->device_type == DEVICE_INTEL_ICH4) {
1041 			if (runtime->sample_bits > 16)
1042 				cnt |= ICH_PCM_20BIT;
1043 		}
1044 		iputdword(chip, ICHREG(GLOB_CNT), cnt);
1045 		break;
1046 	}
1047 	spin_unlock_irq(&chip->reg_lock);
1048 }
1049 
1050 static int snd_intel8x0_pcm_prepare(struct snd_pcm_substream *substream)
1051 {
1052 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1053 	struct snd_pcm_runtime *runtime = substream->runtime;
1054 	struct ichdev *ichdev = get_ichdev(substream);
1055 
1056 	ichdev->physbuf = runtime->dma_addr;
1057 	ichdev->size = snd_pcm_lib_buffer_bytes(substream);
1058 	ichdev->fragsize = snd_pcm_lib_period_bytes(substream);
1059 	if (ichdev->ichd == ICHD_PCMOUT) {
1060 		snd_intel8x0_setup_pcm_out(chip, runtime);
1061 		if (chip->device_type == DEVICE_INTEL_ICH4)
1062 			ichdev->pos_shift = (runtime->sample_bits > 16) ? 2 : 1;
1063 	}
1064 	snd_intel8x0_setup_periods(chip, ichdev);
1065 	return 0;
1066 }
1067 
1068 static snd_pcm_uframes_t snd_intel8x0_pcm_pointer(struct snd_pcm_substream *substream)
1069 {
1070 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1071 	struct ichdev *ichdev = get_ichdev(substream);
1072 	size_t ptr1, ptr;
1073 	int civ, timeout = 10;
1074 	unsigned int position;
1075 
1076 	spin_lock(&chip->reg_lock);
1077 	do {
1078 		civ = igetbyte(chip, ichdev->reg_offset + ICH_REG_OFF_CIV);
1079 		ptr1 = igetword(chip, ichdev->reg_offset + ichdev->roff_picb);
1080 		position = ichdev->position;
1081 		if (ptr1 == 0) {
1082 			udelay(10);
1083 			continue;
1084 		}
1085 		if (civ != igetbyte(chip, ichdev->reg_offset + ICH_REG_OFF_CIV))
1086 			continue;
1087 
1088 		/* IO read operation is very expensive inside virtual machine
1089 		 * as it is emulated. The probability that subsequent PICB read
1090 		 * will return different result is high enough to loop till
1091 		 * timeout here.
1092 		 * Same CIV is strict enough condition to be sure that PICB
1093 		 * is valid inside VM on emulated card. */
1094 		if (chip->inside_vm)
1095 			break;
1096 		if (ptr1 == igetword(chip, ichdev->reg_offset + ichdev->roff_picb))
1097 			break;
1098 	} while (timeout--);
1099 	ptr = ichdev->last_pos;
1100 	if (ptr1 != 0) {
1101 		ptr1 <<= ichdev->pos_shift;
1102 		ptr = ichdev->fragsize1 - ptr1;
1103 		ptr += position;
1104 		if (ptr < ichdev->last_pos) {
1105 			unsigned int pos_base, last_base;
1106 			pos_base = position / ichdev->fragsize1;
1107 			last_base = ichdev->last_pos / ichdev->fragsize1;
1108 			/* another sanity check; ptr1 can go back to full
1109 			 * before the base position is updated
1110 			 */
1111 			if (pos_base == last_base)
1112 				ptr = ichdev->last_pos;
1113 		}
1114 	}
1115 	ichdev->last_pos = ptr;
1116 	spin_unlock(&chip->reg_lock);
1117 	if (ptr >= ichdev->size)
1118 		return 0;
1119 	return bytes_to_frames(substream->runtime, ptr);
1120 }
1121 
1122 static struct snd_pcm_hardware snd_intel8x0_stream =
1123 {
1124 	.info =			(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1125 				 SNDRV_PCM_INFO_BLOCK_TRANSFER |
1126 				 SNDRV_PCM_INFO_MMAP_VALID |
1127 				 SNDRV_PCM_INFO_PAUSE |
1128 				 SNDRV_PCM_INFO_RESUME),
1129 	.formats =		SNDRV_PCM_FMTBIT_S16_LE,
1130 	.rates =		SNDRV_PCM_RATE_48000,
1131 	.rate_min =		48000,
1132 	.rate_max =		48000,
1133 	.channels_min =		2,
1134 	.channels_max =		2,
1135 	.buffer_bytes_max =	128 * 1024,
1136 	.period_bytes_min =	32,
1137 	.period_bytes_max =	128 * 1024,
1138 	.periods_min =		1,
1139 	.periods_max =		1024,
1140 	.fifo_size =		0,
1141 };
1142 
1143 static unsigned int channels4[] = {
1144 	2, 4,
1145 };
1146 
1147 static struct snd_pcm_hw_constraint_list hw_constraints_channels4 = {
1148 	.count = ARRAY_SIZE(channels4),
1149 	.list = channels4,
1150 	.mask = 0,
1151 };
1152 
1153 static unsigned int channels6[] = {
1154 	2, 4, 6,
1155 };
1156 
1157 static struct snd_pcm_hw_constraint_list hw_constraints_channels6 = {
1158 	.count = ARRAY_SIZE(channels6),
1159 	.list = channels6,
1160 	.mask = 0,
1161 };
1162 
1163 static unsigned int channels8[] = {
1164 	2, 4, 6, 8,
1165 };
1166 
1167 static struct snd_pcm_hw_constraint_list hw_constraints_channels8 = {
1168 	.count = ARRAY_SIZE(channels8),
1169 	.list = channels8,
1170 	.mask = 0,
1171 };
1172 
1173 static int snd_intel8x0_pcm_open(struct snd_pcm_substream *substream, struct ichdev *ichdev)
1174 {
1175 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1176 	struct snd_pcm_runtime *runtime = substream->runtime;
1177 	int err;
1178 
1179 	ichdev->substream = substream;
1180 	runtime->hw = snd_intel8x0_stream;
1181 	runtime->hw.rates = ichdev->pcm->rates;
1182 	snd_pcm_limit_hw_rates(runtime);
1183 	if (chip->device_type == DEVICE_SIS) {
1184 		runtime->hw.buffer_bytes_max = 64*1024;
1185 		runtime->hw.period_bytes_max = 64*1024;
1186 	}
1187 	if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
1188 		return err;
1189 	runtime->private_data = ichdev;
1190 	return 0;
1191 }
1192 
1193 static int snd_intel8x0_playback_open(struct snd_pcm_substream *substream)
1194 {
1195 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1196 	struct snd_pcm_runtime *runtime = substream->runtime;
1197 	int err;
1198 
1199 	err = snd_intel8x0_pcm_open(substream, &chip->ichd[ICHD_PCMOUT]);
1200 	if (err < 0)
1201 		return err;
1202 
1203 	if (chip->multi8) {
1204 		runtime->hw.channels_max = 8;
1205 		snd_pcm_hw_constraint_list(runtime, 0,
1206 						SNDRV_PCM_HW_PARAM_CHANNELS,
1207 						&hw_constraints_channels8);
1208 	} else if (chip->multi6) {
1209 		runtime->hw.channels_max = 6;
1210 		snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
1211 					   &hw_constraints_channels6);
1212 	} else if (chip->multi4) {
1213 		runtime->hw.channels_max = 4;
1214 		snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
1215 					   &hw_constraints_channels4);
1216 	}
1217 	if (chip->dra) {
1218 		snd_ac97_pcm_double_rate_rules(runtime);
1219 	}
1220 	if (chip->smp20bit) {
1221 		runtime->hw.formats |= SNDRV_PCM_FMTBIT_S32_LE;
1222 		snd_pcm_hw_constraint_msbits(runtime, 0, 32, 20);
1223 	}
1224 	return 0;
1225 }
1226 
1227 static int snd_intel8x0_playback_close(struct snd_pcm_substream *substream)
1228 {
1229 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1230 
1231 	chip->ichd[ICHD_PCMOUT].substream = NULL;
1232 	return 0;
1233 }
1234 
1235 static int snd_intel8x0_capture_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_PCMIN]);
1240 }
1241 
1242 static int snd_intel8x0_capture_close(struct snd_pcm_substream *substream)
1243 {
1244 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1245 
1246 	chip->ichd[ICHD_PCMIN].substream = NULL;
1247 	return 0;
1248 }
1249 
1250 static int snd_intel8x0_mic_open(struct snd_pcm_substream *substream)
1251 {
1252 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1253 
1254 	return snd_intel8x0_pcm_open(substream, &chip->ichd[ICHD_MIC]);
1255 }
1256 
1257 static int snd_intel8x0_mic_close(struct snd_pcm_substream *substream)
1258 {
1259 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1260 
1261 	chip->ichd[ICHD_MIC].substream = NULL;
1262 	return 0;
1263 }
1264 
1265 static int snd_intel8x0_mic2_open(struct snd_pcm_substream *substream)
1266 {
1267 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1268 
1269 	return snd_intel8x0_pcm_open(substream, &chip->ichd[ICHD_MIC2]);
1270 }
1271 
1272 static int snd_intel8x0_mic2_close(struct snd_pcm_substream *substream)
1273 {
1274 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1275 
1276 	chip->ichd[ICHD_MIC2].substream = NULL;
1277 	return 0;
1278 }
1279 
1280 static int snd_intel8x0_capture2_open(struct snd_pcm_substream *substream)
1281 {
1282 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1283 
1284 	return snd_intel8x0_pcm_open(substream, &chip->ichd[ICHD_PCM2IN]);
1285 }
1286 
1287 static int snd_intel8x0_capture2_close(struct snd_pcm_substream *substream)
1288 {
1289 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1290 
1291 	chip->ichd[ICHD_PCM2IN].substream = NULL;
1292 	return 0;
1293 }
1294 
1295 static int snd_intel8x0_spdif_open(struct snd_pcm_substream *substream)
1296 {
1297 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1298 	int idx = chip->device_type == DEVICE_NFORCE ? NVD_SPBAR : ICHD_SPBAR;
1299 
1300 	return snd_intel8x0_pcm_open(substream, &chip->ichd[idx]);
1301 }
1302 
1303 static int snd_intel8x0_spdif_close(struct snd_pcm_substream *substream)
1304 {
1305 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1306 	int idx = chip->device_type == DEVICE_NFORCE ? NVD_SPBAR : ICHD_SPBAR;
1307 
1308 	chip->ichd[idx].substream = NULL;
1309 	return 0;
1310 }
1311 
1312 static int snd_intel8x0_ali_ac97spdifout_open(struct snd_pcm_substream *substream)
1313 {
1314 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1315 	unsigned int val;
1316 
1317 	spin_lock_irq(&chip->reg_lock);
1318 	val = igetdword(chip, ICHREG(ALI_INTERFACECR));
1319 	val |= ICH_ALI_IF_AC97SP;
1320 	iputdword(chip, ICHREG(ALI_INTERFACECR), val);
1321 	/* also needs to set ALI_SC_CODEC_SPDF correctly */
1322 	spin_unlock_irq(&chip->reg_lock);
1323 
1324 	return snd_intel8x0_pcm_open(substream, &chip->ichd[ALID_AC97SPDIFOUT]);
1325 }
1326 
1327 static int snd_intel8x0_ali_ac97spdifout_close(struct snd_pcm_substream *substream)
1328 {
1329 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1330 	unsigned int val;
1331 
1332 	chip->ichd[ALID_AC97SPDIFOUT].substream = NULL;
1333 	spin_lock_irq(&chip->reg_lock);
1334 	val = igetdword(chip, ICHREG(ALI_INTERFACECR));
1335 	val &= ~ICH_ALI_IF_AC97SP;
1336 	iputdword(chip, ICHREG(ALI_INTERFACECR), val);
1337 	spin_unlock_irq(&chip->reg_lock);
1338 
1339 	return 0;
1340 }
1341 
1342 #if 0 // NYI
1343 static int snd_intel8x0_ali_spdifin_open(struct snd_pcm_substream *substream)
1344 {
1345 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1346 
1347 	return snd_intel8x0_pcm_open(substream, &chip->ichd[ALID_SPDIFIN]);
1348 }
1349 
1350 static int snd_intel8x0_ali_spdifin_close(struct snd_pcm_substream *substream)
1351 {
1352 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1353 
1354 	chip->ichd[ALID_SPDIFIN].substream = NULL;
1355 	return 0;
1356 }
1357 
1358 static int snd_intel8x0_ali_spdifout_open(struct snd_pcm_substream *substream)
1359 {
1360 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1361 
1362 	return snd_intel8x0_pcm_open(substream, &chip->ichd[ALID_SPDIFOUT]);
1363 }
1364 
1365 static int snd_intel8x0_ali_spdifout_close(struct snd_pcm_substream *substream)
1366 {
1367 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1368 
1369 	chip->ichd[ALID_SPDIFOUT].substream = NULL;
1370 	return 0;
1371 }
1372 #endif
1373 
1374 static struct snd_pcm_ops snd_intel8x0_playback_ops = {
1375 	.open =		snd_intel8x0_playback_open,
1376 	.close =	snd_intel8x0_playback_close,
1377 	.ioctl =	snd_pcm_lib_ioctl,
1378 	.hw_params =	snd_intel8x0_hw_params,
1379 	.hw_free =	snd_intel8x0_hw_free,
1380 	.prepare =	snd_intel8x0_pcm_prepare,
1381 	.trigger =	snd_intel8x0_pcm_trigger,
1382 	.pointer =	snd_intel8x0_pcm_pointer,
1383 };
1384 
1385 static struct snd_pcm_ops snd_intel8x0_capture_ops = {
1386 	.open =		snd_intel8x0_capture_open,
1387 	.close =	snd_intel8x0_capture_close,
1388 	.ioctl =	snd_pcm_lib_ioctl,
1389 	.hw_params =	snd_intel8x0_hw_params,
1390 	.hw_free =	snd_intel8x0_hw_free,
1391 	.prepare =	snd_intel8x0_pcm_prepare,
1392 	.trigger =	snd_intel8x0_pcm_trigger,
1393 	.pointer =	snd_intel8x0_pcm_pointer,
1394 };
1395 
1396 static struct snd_pcm_ops snd_intel8x0_capture_mic_ops = {
1397 	.open =		snd_intel8x0_mic_open,
1398 	.close =	snd_intel8x0_mic_close,
1399 	.ioctl =	snd_pcm_lib_ioctl,
1400 	.hw_params =	snd_intel8x0_hw_params,
1401 	.hw_free =	snd_intel8x0_hw_free,
1402 	.prepare =	snd_intel8x0_pcm_prepare,
1403 	.trigger =	snd_intel8x0_pcm_trigger,
1404 	.pointer =	snd_intel8x0_pcm_pointer,
1405 };
1406 
1407 static struct snd_pcm_ops snd_intel8x0_capture_mic2_ops = {
1408 	.open =		snd_intel8x0_mic2_open,
1409 	.close =	snd_intel8x0_mic2_close,
1410 	.ioctl =	snd_pcm_lib_ioctl,
1411 	.hw_params =	snd_intel8x0_hw_params,
1412 	.hw_free =	snd_intel8x0_hw_free,
1413 	.prepare =	snd_intel8x0_pcm_prepare,
1414 	.trigger =	snd_intel8x0_pcm_trigger,
1415 	.pointer =	snd_intel8x0_pcm_pointer,
1416 };
1417 
1418 static struct snd_pcm_ops snd_intel8x0_capture2_ops = {
1419 	.open =		snd_intel8x0_capture2_open,
1420 	.close =	snd_intel8x0_capture2_close,
1421 	.ioctl =	snd_pcm_lib_ioctl,
1422 	.hw_params =	snd_intel8x0_hw_params,
1423 	.hw_free =	snd_intel8x0_hw_free,
1424 	.prepare =	snd_intel8x0_pcm_prepare,
1425 	.trigger =	snd_intel8x0_pcm_trigger,
1426 	.pointer =	snd_intel8x0_pcm_pointer,
1427 };
1428 
1429 static struct snd_pcm_ops snd_intel8x0_spdif_ops = {
1430 	.open =		snd_intel8x0_spdif_open,
1431 	.close =	snd_intel8x0_spdif_close,
1432 	.ioctl =	snd_pcm_lib_ioctl,
1433 	.hw_params =	snd_intel8x0_hw_params,
1434 	.hw_free =	snd_intel8x0_hw_free,
1435 	.prepare =	snd_intel8x0_pcm_prepare,
1436 	.trigger =	snd_intel8x0_pcm_trigger,
1437 	.pointer =	snd_intel8x0_pcm_pointer,
1438 };
1439 
1440 static struct snd_pcm_ops snd_intel8x0_ali_playback_ops = {
1441 	.open =		snd_intel8x0_playback_open,
1442 	.close =	snd_intel8x0_playback_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_ali_trigger,
1448 	.pointer =	snd_intel8x0_pcm_pointer,
1449 };
1450 
1451 static struct snd_pcm_ops snd_intel8x0_ali_capture_ops = {
1452 	.open =		snd_intel8x0_capture_open,
1453 	.close =	snd_intel8x0_capture_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_ali_trigger,
1459 	.pointer =	snd_intel8x0_pcm_pointer,
1460 };
1461 
1462 static struct snd_pcm_ops snd_intel8x0_ali_capture_mic_ops = {
1463 	.open =		snd_intel8x0_mic_open,
1464 	.close =	snd_intel8x0_mic_close,
1465 	.ioctl =	snd_pcm_lib_ioctl,
1466 	.hw_params =	snd_intel8x0_hw_params,
1467 	.hw_free =	snd_intel8x0_hw_free,
1468 	.prepare =	snd_intel8x0_pcm_prepare,
1469 	.trigger =	snd_intel8x0_ali_trigger,
1470 	.pointer =	snd_intel8x0_pcm_pointer,
1471 };
1472 
1473 static struct snd_pcm_ops snd_intel8x0_ali_ac97spdifout_ops = {
1474 	.open =		snd_intel8x0_ali_ac97spdifout_open,
1475 	.close =	snd_intel8x0_ali_ac97spdifout_close,
1476 	.ioctl =	snd_pcm_lib_ioctl,
1477 	.hw_params =	snd_intel8x0_hw_params,
1478 	.hw_free =	snd_intel8x0_hw_free,
1479 	.prepare =	snd_intel8x0_pcm_prepare,
1480 	.trigger =	snd_intel8x0_ali_trigger,
1481 	.pointer =	snd_intel8x0_pcm_pointer,
1482 };
1483 
1484 #if 0 // NYI
1485 static struct snd_pcm_ops snd_intel8x0_ali_spdifin_ops = {
1486 	.open =		snd_intel8x0_ali_spdifin_open,
1487 	.close =	snd_intel8x0_ali_spdifin_close,
1488 	.ioctl =	snd_pcm_lib_ioctl,
1489 	.hw_params =	snd_intel8x0_hw_params,
1490 	.hw_free =	snd_intel8x0_hw_free,
1491 	.prepare =	snd_intel8x0_pcm_prepare,
1492 	.trigger =	snd_intel8x0_pcm_trigger,
1493 	.pointer =	snd_intel8x0_pcm_pointer,
1494 };
1495 
1496 static struct snd_pcm_ops snd_intel8x0_ali_spdifout_ops = {
1497 	.open =		snd_intel8x0_ali_spdifout_open,
1498 	.close =	snd_intel8x0_ali_spdifout_close,
1499 	.ioctl =	snd_pcm_lib_ioctl,
1500 	.hw_params =	snd_intel8x0_hw_params,
1501 	.hw_free =	snd_intel8x0_hw_free,
1502 	.prepare =	snd_intel8x0_pcm_prepare,
1503 	.trigger =	snd_intel8x0_pcm_trigger,
1504 	.pointer =	snd_intel8x0_pcm_pointer,
1505 };
1506 #endif // NYI
1507 
1508 struct ich_pcm_table {
1509 	char *suffix;
1510 	struct snd_pcm_ops *playback_ops;
1511 	struct snd_pcm_ops *capture_ops;
1512 	size_t prealloc_size;
1513 	size_t prealloc_max_size;
1514 	int ac97_idx;
1515 };
1516 
1517 static int snd_intel8x0_pcm1(struct intel8x0 *chip, int device,
1518 			     struct ich_pcm_table *rec)
1519 {
1520 	struct snd_pcm *pcm;
1521 	int err;
1522 	char name[32];
1523 
1524 	if (rec->suffix)
1525 		sprintf(name, "Intel ICH - %s", rec->suffix);
1526 	else
1527 		strcpy(name, "Intel ICH");
1528 	err = snd_pcm_new(chip->card, name, device,
1529 			  rec->playback_ops ? 1 : 0,
1530 			  rec->capture_ops ? 1 : 0, &pcm);
1531 	if (err < 0)
1532 		return err;
1533 
1534 	if (rec->playback_ops)
1535 		snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, rec->playback_ops);
1536 	if (rec->capture_ops)
1537 		snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, rec->capture_ops);
1538 
1539 	pcm->private_data = chip;
1540 	pcm->info_flags = 0;
1541 	if (rec->suffix)
1542 		sprintf(pcm->name, "%s - %s", chip->card->shortname, rec->suffix);
1543 	else
1544 		strcpy(pcm->name, chip->card->shortname);
1545 	chip->pcm[device] = pcm;
1546 
1547 	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
1548 					      snd_dma_pci_data(chip->pci),
1549 					      rec->prealloc_size, rec->prealloc_max_size);
1550 
1551 	if (rec->playback_ops &&
1552 	    rec->playback_ops->open == snd_intel8x0_playback_open) {
1553 		struct snd_pcm_chmap *chmap;
1554 		int chs = 2;
1555 		if (chip->multi8)
1556 			chs = 8;
1557 		else if (chip->multi6)
1558 			chs = 6;
1559 		else if (chip->multi4)
1560 			chs = 4;
1561 		err = snd_pcm_add_chmap_ctls(pcm, SNDRV_PCM_STREAM_PLAYBACK,
1562 					     snd_pcm_alt_chmaps, chs, 0,
1563 					     &chmap);
1564 		if (err < 0)
1565 			return err;
1566 		chmap->channel_mask = SND_PCM_CHMAP_MASK_2468;
1567 		chip->ac97[0]->chmaps[SNDRV_PCM_STREAM_PLAYBACK] = chmap;
1568 	}
1569 
1570 	return 0;
1571 }
1572 
1573 static struct ich_pcm_table intel_pcms[] = {
1574 	{
1575 		.playback_ops = &snd_intel8x0_playback_ops,
1576 		.capture_ops = &snd_intel8x0_capture_ops,
1577 		.prealloc_size = 64 * 1024,
1578 		.prealloc_max_size = 128 * 1024,
1579 	},
1580 	{
1581 		.suffix = "MIC ADC",
1582 		.capture_ops = &snd_intel8x0_capture_mic_ops,
1583 		.prealloc_size = 0,
1584 		.prealloc_max_size = 128 * 1024,
1585 		.ac97_idx = ICHD_MIC,
1586 	},
1587 	{
1588 		.suffix = "MIC2 ADC",
1589 		.capture_ops = &snd_intel8x0_capture_mic2_ops,
1590 		.prealloc_size = 0,
1591 		.prealloc_max_size = 128 * 1024,
1592 		.ac97_idx = ICHD_MIC2,
1593 	},
1594 	{
1595 		.suffix = "ADC2",
1596 		.capture_ops = &snd_intel8x0_capture2_ops,
1597 		.prealloc_size = 0,
1598 		.prealloc_max_size = 128 * 1024,
1599 		.ac97_idx = ICHD_PCM2IN,
1600 	},
1601 	{
1602 		.suffix = "IEC958",
1603 		.playback_ops = &snd_intel8x0_spdif_ops,
1604 		.prealloc_size = 64 * 1024,
1605 		.prealloc_max_size = 128 * 1024,
1606 		.ac97_idx = ICHD_SPBAR,
1607 	},
1608 };
1609 
1610 static struct ich_pcm_table nforce_pcms[] = {
1611 	{
1612 		.playback_ops = &snd_intel8x0_playback_ops,
1613 		.capture_ops = &snd_intel8x0_capture_ops,
1614 		.prealloc_size = 64 * 1024,
1615 		.prealloc_max_size = 128 * 1024,
1616 	},
1617 	{
1618 		.suffix = "MIC ADC",
1619 		.capture_ops = &snd_intel8x0_capture_mic_ops,
1620 		.prealloc_size = 0,
1621 		.prealloc_max_size = 128 * 1024,
1622 		.ac97_idx = NVD_MIC,
1623 	},
1624 	{
1625 		.suffix = "IEC958",
1626 		.playback_ops = &snd_intel8x0_spdif_ops,
1627 		.prealloc_size = 64 * 1024,
1628 		.prealloc_max_size = 128 * 1024,
1629 		.ac97_idx = NVD_SPBAR,
1630 	},
1631 };
1632 
1633 static struct ich_pcm_table ali_pcms[] = {
1634 	{
1635 		.playback_ops = &snd_intel8x0_ali_playback_ops,
1636 		.capture_ops = &snd_intel8x0_ali_capture_ops,
1637 		.prealloc_size = 64 * 1024,
1638 		.prealloc_max_size = 128 * 1024,
1639 	},
1640 	{
1641 		.suffix = "MIC ADC",
1642 		.capture_ops = &snd_intel8x0_ali_capture_mic_ops,
1643 		.prealloc_size = 0,
1644 		.prealloc_max_size = 128 * 1024,
1645 		.ac97_idx = ALID_MIC,
1646 	},
1647 	{
1648 		.suffix = "IEC958",
1649 		.playback_ops = &snd_intel8x0_ali_ac97spdifout_ops,
1650 		/* .capture_ops = &snd_intel8x0_ali_spdifin_ops, */
1651 		.prealloc_size = 64 * 1024,
1652 		.prealloc_max_size = 128 * 1024,
1653 		.ac97_idx = ALID_AC97SPDIFOUT,
1654 	},
1655 #if 0 // NYI
1656 	{
1657 		.suffix = "HW IEC958",
1658 		.playback_ops = &snd_intel8x0_ali_spdifout_ops,
1659 		.prealloc_size = 64 * 1024,
1660 		.prealloc_max_size = 128 * 1024,
1661 	},
1662 #endif
1663 };
1664 
1665 static int snd_intel8x0_pcm(struct intel8x0 *chip)
1666 {
1667 	int i, tblsize, device, err;
1668 	struct ich_pcm_table *tbl, *rec;
1669 
1670 	switch (chip->device_type) {
1671 	case DEVICE_INTEL_ICH4:
1672 		tbl = intel_pcms;
1673 		tblsize = ARRAY_SIZE(intel_pcms);
1674 		if (spdif_aclink)
1675 			tblsize--;
1676 		break;
1677 	case DEVICE_NFORCE:
1678 		tbl = nforce_pcms;
1679 		tblsize = ARRAY_SIZE(nforce_pcms);
1680 		if (spdif_aclink)
1681 			tblsize--;
1682 		break;
1683 	case DEVICE_ALI:
1684 		tbl = ali_pcms;
1685 		tblsize = ARRAY_SIZE(ali_pcms);
1686 		break;
1687 	default:
1688 		tbl = intel_pcms;
1689 		tblsize = 2;
1690 		break;
1691 	}
1692 
1693 	device = 0;
1694 	for (i = 0; i < tblsize; i++) {
1695 		rec = tbl + i;
1696 		if (i > 0 && rec->ac97_idx) {
1697 			/* activate PCM only when associated AC'97 codec */
1698 			if (! chip->ichd[rec->ac97_idx].pcm)
1699 				continue;
1700 		}
1701 		err = snd_intel8x0_pcm1(chip, device, rec);
1702 		if (err < 0)
1703 			return err;
1704 		device++;
1705 	}
1706 
1707 	chip->pcm_devs = device;
1708 	return 0;
1709 }
1710 
1711 
1712 /*
1713  *  Mixer part
1714  */
1715 
1716 static void snd_intel8x0_mixer_free_ac97_bus(struct snd_ac97_bus *bus)
1717 {
1718 	struct intel8x0 *chip = bus->private_data;
1719 	chip->ac97_bus = NULL;
1720 }
1721 
1722 static void snd_intel8x0_mixer_free_ac97(struct snd_ac97 *ac97)
1723 {
1724 	struct intel8x0 *chip = ac97->private_data;
1725 	chip->ac97[ac97->num] = NULL;
1726 }
1727 
1728 static struct ac97_pcm ac97_pcm_defs[] = {
1729 	/* front PCM */
1730 	{
1731 		.exclusive = 1,
1732 		.r = {	{
1733 				.slots = (1 << AC97_SLOT_PCM_LEFT) |
1734 					 (1 << AC97_SLOT_PCM_RIGHT) |
1735 					 (1 << AC97_SLOT_PCM_CENTER) |
1736 					 (1 << AC97_SLOT_PCM_SLEFT) |
1737 					 (1 << AC97_SLOT_PCM_SRIGHT) |
1738 					 (1 << AC97_SLOT_LFE)
1739 			},
1740 			{
1741 				.slots = (1 << AC97_SLOT_PCM_LEFT) |
1742 					 (1 << AC97_SLOT_PCM_RIGHT) |
1743 					 (1 << AC97_SLOT_PCM_LEFT_0) |
1744 					 (1 << AC97_SLOT_PCM_RIGHT_0)
1745 			}
1746 		}
1747 	},
1748 	/* PCM IN #1 */
1749 	{
1750 		.stream = 1,
1751 		.exclusive = 1,
1752 		.r = {	{
1753 				.slots = (1 << AC97_SLOT_PCM_LEFT) |
1754 					 (1 << AC97_SLOT_PCM_RIGHT)
1755 			}
1756 		}
1757 	},
1758 	/* MIC IN #1 */
1759 	{
1760 		.stream = 1,
1761 		.exclusive = 1,
1762 		.r = {	{
1763 				.slots = (1 << AC97_SLOT_MIC)
1764 			}
1765 		}
1766 	},
1767 	/* S/PDIF PCM */
1768 	{
1769 		.exclusive = 1,
1770 		.spdif = 1,
1771 		.r = {	{
1772 				.slots = (1 << AC97_SLOT_SPDIF_LEFT2) |
1773 					 (1 << AC97_SLOT_SPDIF_RIGHT2)
1774 			}
1775 		}
1776 	},
1777 	/* PCM IN #2 */
1778 	{
1779 		.stream = 1,
1780 		.exclusive = 1,
1781 		.r = {	{
1782 				.slots = (1 << AC97_SLOT_PCM_LEFT) |
1783 					 (1 << AC97_SLOT_PCM_RIGHT)
1784 			}
1785 		}
1786 	},
1787 	/* MIC IN #2 */
1788 	{
1789 		.stream = 1,
1790 		.exclusive = 1,
1791 		.r = {	{
1792 				.slots = (1 << AC97_SLOT_MIC)
1793 			}
1794 		}
1795 	},
1796 };
1797 
1798 static struct ac97_quirk ac97_quirks[] = {
1799         {
1800 		.subvendor = 0x0e11,
1801 		.subdevice = 0x000e,
1802 		.name = "Compaq Deskpro EN",	/* AD1885 */
1803 		.type = AC97_TUNE_HP_ONLY
1804         },
1805 	{
1806 		.subvendor = 0x0e11,
1807 		.subdevice = 0x008a,
1808 		.name = "Compaq Evo W4000",	/* AD1885 */
1809 		.type = AC97_TUNE_HP_ONLY
1810 	},
1811 	{
1812 		.subvendor = 0x0e11,
1813 		.subdevice = 0x00b8,
1814 		.name = "Compaq Evo D510C",
1815 		.type = AC97_TUNE_HP_ONLY
1816 	},
1817         {
1818 		.subvendor = 0x0e11,
1819 		.subdevice = 0x0860,
1820 		.name = "HP/Compaq nx7010",
1821 		.type = AC97_TUNE_MUTE_LED
1822         },
1823 	{
1824 		.subvendor = 0x1014,
1825 		.subdevice = 0x0534,
1826 		.name = "ThinkPad X31",
1827 		.type = AC97_TUNE_INV_EAPD
1828 	},
1829 	{
1830 		.subvendor = 0x1014,
1831 		.subdevice = 0x1f00,
1832 		.name = "MS-9128",
1833 		.type = AC97_TUNE_ALC_JACK
1834 	},
1835 	{
1836 		.subvendor = 0x1014,
1837 		.subdevice = 0x0267,
1838 		.name = "IBM NetVista A30p",	/* AD1981B */
1839 		.type = AC97_TUNE_HP_ONLY
1840 	},
1841 	{
1842 		.subvendor = 0x1025,
1843 		.subdevice = 0x0082,
1844 		.name = "Acer Travelmate 2310",
1845 		.type = AC97_TUNE_HP_ONLY
1846 	},
1847 	{
1848 		.subvendor = 0x1025,
1849 		.subdevice = 0x0083,
1850 		.name = "Acer Aspire 3003LCi",
1851 		.type = AC97_TUNE_HP_ONLY
1852 	},
1853 	{
1854 		.subvendor = 0x1028,
1855 		.subdevice = 0x00d8,
1856 		.name = "Dell Precision 530",	/* AD1885 */
1857 		.type = AC97_TUNE_HP_ONLY
1858 	},
1859 	{
1860 		.subvendor = 0x1028,
1861 		.subdevice = 0x010d,
1862 		.name = "Dell",	/* which model?  AD1885 */
1863 		.type = AC97_TUNE_HP_ONLY
1864 	},
1865 	{
1866 		.subvendor = 0x1028,
1867 		.subdevice = 0x0126,
1868 		.name = "Dell Optiplex GX260",	/* AD1981A */
1869 		.type = AC97_TUNE_HP_ONLY
1870 	},
1871 	{
1872 		.subvendor = 0x1028,
1873 		.subdevice = 0x012c,
1874 		.name = "Dell Precision 650",	/* AD1981A */
1875 		.type = AC97_TUNE_HP_ONLY
1876 	},
1877 	{
1878 		.subvendor = 0x1028,
1879 		.subdevice = 0x012d,
1880 		.name = "Dell Precision 450",	/* AD1981B*/
1881 		.type = AC97_TUNE_HP_ONLY
1882 	},
1883 	{
1884 		.subvendor = 0x1028,
1885 		.subdevice = 0x0147,
1886 		.name = "Dell",	/* which model?  AD1981B*/
1887 		.type = AC97_TUNE_HP_ONLY
1888 	},
1889 	{
1890 		.subvendor = 0x1028,
1891 		.subdevice = 0x0151,
1892 		.name = "Dell Optiplex GX270",  /* AD1981B */
1893 		.type = AC97_TUNE_HP_ONLY
1894 	},
1895 	{
1896 		.subvendor = 0x1028,
1897 		.subdevice = 0x014e,
1898 		.name = "Dell D800", /* STAC9750/51 */
1899 		.type = AC97_TUNE_HP_ONLY
1900 	},
1901 	{
1902 		.subvendor = 0x1028,
1903 		.subdevice = 0x0163,
1904 		.name = "Dell Unknown",	/* STAC9750/51 */
1905 		.type = AC97_TUNE_HP_ONLY
1906 	},
1907 	{
1908 		.subvendor = 0x1028,
1909 		.subdevice = 0x016a,
1910 		.name = "Dell Inspiron 8600",	/* STAC9750/51 */
1911 		.type = AC97_TUNE_HP_ONLY
1912 	},
1913 	{
1914 		.subvendor = 0x1028,
1915 		.subdevice = 0x0182,
1916 		.name = "Dell Latitude D610",	/* STAC9750/51 */
1917 		.type = AC97_TUNE_HP_ONLY
1918 	},
1919 	{
1920 		.subvendor = 0x1028,
1921 		.subdevice = 0x0186,
1922 		.name = "Dell Latitude D810", /* cf. Malone #41015 */
1923 		.type = AC97_TUNE_HP_MUTE_LED
1924 	},
1925 	{
1926 		.subvendor = 0x1028,
1927 		.subdevice = 0x0188,
1928 		.name = "Dell Inspiron 6000",
1929 		.type = AC97_TUNE_HP_MUTE_LED /* cf. Malone #41015 */
1930 	},
1931 	{
1932 		.subvendor = 0x1028,
1933 		.subdevice = 0x0189,
1934 		.name = "Dell Inspiron 9300",
1935 		.type = AC97_TUNE_HP_MUTE_LED
1936 	},
1937 	{
1938 		.subvendor = 0x1028,
1939 		.subdevice = 0x0191,
1940 		.name = "Dell Inspiron 8600",
1941 		.type = AC97_TUNE_HP_ONLY
1942 	},
1943 	{
1944 		.subvendor = 0x103c,
1945 		.subdevice = 0x006d,
1946 		.name = "HP zv5000",
1947 		.type = AC97_TUNE_MUTE_LED	/*AD1981B*/
1948 	},
1949 	{	/* FIXME: which codec? */
1950 		.subvendor = 0x103c,
1951 		.subdevice = 0x00c3,
1952 		.name = "HP xw6000",
1953 		.type = AC97_TUNE_HP_ONLY
1954 	},
1955 	{
1956 		.subvendor = 0x103c,
1957 		.subdevice = 0x088c,
1958 		.name = "HP nc8000",
1959 		.type = AC97_TUNE_HP_MUTE_LED
1960 	},
1961 	{
1962 		.subvendor = 0x103c,
1963 		.subdevice = 0x0890,
1964 		.name = "HP nc6000",
1965 		.type = AC97_TUNE_MUTE_LED
1966 	},
1967 	{
1968 		.subvendor = 0x103c,
1969 		.subdevice = 0x129d,
1970 		.name = "HP xw8000",
1971 		.type = AC97_TUNE_HP_ONLY
1972 	},
1973 	{
1974 		.subvendor = 0x103c,
1975 		.subdevice = 0x0938,
1976 		.name = "HP nc4200",
1977 		.type = AC97_TUNE_HP_MUTE_LED
1978 	},
1979 	{
1980 		.subvendor = 0x103c,
1981 		.subdevice = 0x099c,
1982 		.name = "HP nx6110/nc6120",
1983 		.type = AC97_TUNE_HP_MUTE_LED
1984 	},
1985 	{
1986 		.subvendor = 0x103c,
1987 		.subdevice = 0x0944,
1988 		.name = "HP nc6220",
1989 		.type = AC97_TUNE_HP_MUTE_LED
1990 	},
1991 	{
1992 		.subvendor = 0x103c,
1993 		.subdevice = 0x0934,
1994 		.name = "HP nc8220",
1995 		.type = AC97_TUNE_HP_MUTE_LED
1996 	},
1997 	{
1998 		.subvendor = 0x103c,
1999 		.subdevice = 0x12f1,
2000 		.name = "HP xw8200",	/* AD1981B*/
2001 		.type = AC97_TUNE_HP_ONLY
2002 	},
2003 	{
2004 		.subvendor = 0x103c,
2005 		.subdevice = 0x12f2,
2006 		.name = "HP xw6200",
2007 		.type = AC97_TUNE_HP_ONLY
2008 	},
2009 	{
2010 		.subvendor = 0x103c,
2011 		.subdevice = 0x3008,
2012 		.name = "HP xw4200",	/* AD1981B*/
2013 		.type = AC97_TUNE_HP_ONLY
2014 	},
2015 	{
2016 		.subvendor = 0x104d,
2017 		.subdevice = 0x8144,
2018 		.name = "Sony",
2019 		.type = AC97_TUNE_INV_EAPD
2020 	},
2021 	{
2022 		.subvendor = 0x104d,
2023 		.subdevice = 0x8197,
2024 		.name = "Sony S1XP",
2025 		.type = AC97_TUNE_INV_EAPD
2026 	},
2027 	{
2028 		.subvendor = 0x104d,
2029 		.subdevice = 0x81c0,
2030 		.name = "Sony VAIO VGN-T350P", /*AD1981B*/
2031 		.type = AC97_TUNE_INV_EAPD
2032 	},
2033 	{
2034 		.subvendor = 0x104d,
2035 		.subdevice = 0x81c5,
2036 		.name = "Sony VAIO VGN-B1VP", /*AD1981B*/
2037 		.type = AC97_TUNE_INV_EAPD
2038 	},
2039  	{
2040 		.subvendor = 0x1043,
2041 		.subdevice = 0x80f3,
2042 		.name = "ASUS ICH5/AD1985",
2043 		.type = AC97_TUNE_AD_SHARING
2044 	},
2045 	{
2046 		.subvendor = 0x10cf,
2047 		.subdevice = 0x11c3,
2048 		.name = "Fujitsu-Siemens E4010",
2049 		.type = AC97_TUNE_HP_ONLY
2050 	},
2051 	{
2052 		.subvendor = 0x10cf,
2053 		.subdevice = 0x1225,
2054 		.name = "Fujitsu-Siemens T3010",
2055 		.type = AC97_TUNE_HP_ONLY
2056 	},
2057 	{
2058 		.subvendor = 0x10cf,
2059 		.subdevice = 0x1253,
2060 		.name = "Fujitsu S6210",	/* STAC9750/51 */
2061 		.type = AC97_TUNE_HP_ONLY
2062 	},
2063 	{
2064 		.subvendor = 0x10cf,
2065 		.subdevice = 0x127d,
2066 		.name = "Fujitsu Lifebook P7010",
2067 		.type = AC97_TUNE_HP_ONLY
2068 	},
2069 	{
2070 		.subvendor = 0x10cf,
2071 		.subdevice = 0x127e,
2072 		.name = "Fujitsu Lifebook C1211D",
2073 		.type = AC97_TUNE_HP_ONLY
2074 	},
2075 	{
2076 		.subvendor = 0x10cf,
2077 		.subdevice = 0x12ec,
2078 		.name = "Fujitsu-Siemens 4010",
2079 		.type = AC97_TUNE_HP_ONLY
2080 	},
2081 	{
2082 		.subvendor = 0x10cf,
2083 		.subdevice = 0x12f2,
2084 		.name = "Fujitsu-Siemens Celsius H320",
2085 		.type = AC97_TUNE_SWAP_HP
2086 	},
2087 	{
2088 		.subvendor = 0x10f1,
2089 		.subdevice = 0x2665,
2090 		.name = "Fujitsu-Siemens Celsius",	/* AD1981? */
2091 		.type = AC97_TUNE_HP_ONLY
2092 	},
2093 	{
2094 		.subvendor = 0x10f1,
2095 		.subdevice = 0x2885,
2096 		.name = "AMD64 Mobo",	/* ALC650 */
2097 		.type = AC97_TUNE_HP_ONLY
2098 	},
2099 	{
2100 		.subvendor = 0x10f1,
2101 		.subdevice = 0x2895,
2102 		.name = "Tyan Thunder K8WE",
2103 		.type = AC97_TUNE_HP_ONLY
2104 	},
2105 	{
2106 		.subvendor = 0x10f7,
2107 		.subdevice = 0x834c,
2108 		.name = "Panasonic CF-R4",
2109 		.type = AC97_TUNE_HP_ONLY,
2110 	},
2111 	{
2112 		.subvendor = 0x110a,
2113 		.subdevice = 0x0056,
2114 		.name = "Fujitsu-Siemens Scenic",	/* AD1981? */
2115 		.type = AC97_TUNE_HP_ONLY
2116 	},
2117 	{
2118 		.subvendor = 0x11d4,
2119 		.subdevice = 0x5375,
2120 		.name = "ADI AD1985 (discrete)",
2121 		.type = AC97_TUNE_HP_ONLY
2122 	},
2123 	{
2124 		.subvendor = 0x1462,
2125 		.subdevice = 0x5470,
2126 		.name = "MSI P4 ATX 645 Ultra",
2127 		.type = AC97_TUNE_HP_ONLY
2128 	},
2129 	{
2130 		.subvendor = 0x161f,
2131 		.subdevice = 0x202f,
2132 		.name = "Gateway M520",
2133 		.type = AC97_TUNE_INV_EAPD
2134 	},
2135 	{
2136 		.subvendor = 0x161f,
2137 		.subdevice = 0x203a,
2138 		.name = "Gateway 4525GZ",		/* AD1981B */
2139 		.type = AC97_TUNE_INV_EAPD
2140 	},
2141 	{
2142 		.subvendor = 0x1734,
2143 		.subdevice = 0x0088,
2144 		.name = "Fujitsu-Siemens D1522",	/* AD1981 */
2145 		.type = AC97_TUNE_HP_ONLY
2146 	},
2147 	{
2148 		.subvendor = 0x8086,
2149 		.subdevice = 0x2000,
2150 		.mask = 0xfff0,
2151 		.name = "Intel ICH5/AD1985",
2152 		.type = AC97_TUNE_AD_SHARING
2153 	},
2154 	{
2155 		.subvendor = 0x8086,
2156 		.subdevice = 0x4000,
2157 		.mask = 0xfff0,
2158 		.name = "Intel ICH5/AD1985",
2159 		.type = AC97_TUNE_AD_SHARING
2160 	},
2161 	{
2162 		.subvendor = 0x8086,
2163 		.subdevice = 0x4856,
2164 		.name = "Intel D845WN (82801BA)",
2165 		.type = AC97_TUNE_SWAP_HP
2166 	},
2167 	{
2168 		.subvendor = 0x8086,
2169 		.subdevice = 0x4d44,
2170 		.name = "Intel D850EMV2",	/* AD1885 */
2171 		.type = AC97_TUNE_HP_ONLY
2172 	},
2173 	{
2174 		.subvendor = 0x8086,
2175 		.subdevice = 0x4d56,
2176 		.name = "Intel ICH/AD1885",
2177 		.type = AC97_TUNE_HP_ONLY
2178 	},
2179 	{
2180 		.subvendor = 0x8086,
2181 		.subdevice = 0x6000,
2182 		.mask = 0xfff0,
2183 		.name = "Intel ICH5/AD1985",
2184 		.type = AC97_TUNE_AD_SHARING
2185 	},
2186 	{
2187 		.subvendor = 0x8086,
2188 		.subdevice = 0xe000,
2189 		.mask = 0xfff0,
2190 		.name = "Intel ICH5/AD1985",
2191 		.type = AC97_TUNE_AD_SHARING
2192 	},
2193 #if 0 /* FIXME: this seems wrong on most boards */
2194 	{
2195 		.subvendor = 0x8086,
2196 		.subdevice = 0xa000,
2197 		.mask = 0xfff0,
2198 		.name = "Intel ICH5/AD1985",
2199 		.type = AC97_TUNE_HP_ONLY
2200 	},
2201 #endif
2202 	{ } /* terminator */
2203 };
2204 
2205 static int snd_intel8x0_mixer(struct intel8x0 *chip, int ac97_clock,
2206 			      const char *quirk_override)
2207 {
2208 	struct snd_ac97_bus *pbus;
2209 	struct snd_ac97_template ac97;
2210 	int err;
2211 	unsigned int i, codecs;
2212 	unsigned int glob_sta = 0;
2213 	struct snd_ac97_bus_ops *ops;
2214 	static struct snd_ac97_bus_ops standard_bus_ops = {
2215 		.write = snd_intel8x0_codec_write,
2216 		.read = snd_intel8x0_codec_read,
2217 	};
2218 	static struct snd_ac97_bus_ops ali_bus_ops = {
2219 		.write = snd_intel8x0_ali_codec_write,
2220 		.read = snd_intel8x0_ali_codec_read,
2221 	};
2222 
2223 	chip->spdif_idx = -1; /* use PCMOUT (or disabled) */
2224 	if (!spdif_aclink) {
2225 		switch (chip->device_type) {
2226 		case DEVICE_NFORCE:
2227 			chip->spdif_idx = NVD_SPBAR;
2228 			break;
2229 		case DEVICE_ALI:
2230 			chip->spdif_idx = ALID_AC97SPDIFOUT;
2231 			break;
2232 		case DEVICE_INTEL_ICH4:
2233 			chip->spdif_idx = ICHD_SPBAR;
2234 			break;
2235 		}
2236 	}
2237 
2238 	chip->in_ac97_init = 1;
2239 
2240 	memset(&ac97, 0, sizeof(ac97));
2241 	ac97.private_data = chip;
2242 	ac97.private_free = snd_intel8x0_mixer_free_ac97;
2243 	ac97.scaps = AC97_SCAP_SKIP_MODEM | AC97_SCAP_POWER_SAVE;
2244 	if (chip->xbox)
2245 		ac97.scaps |= AC97_SCAP_DETECT_BY_VENDOR;
2246 	if (chip->device_type != DEVICE_ALI) {
2247 		glob_sta = igetdword(chip, ICHREG(GLOB_STA));
2248 		ops = &standard_bus_ops;
2249 		chip->in_sdin_init = 1;
2250 		codecs = 0;
2251 		for (i = 0; i < chip->max_codecs; i++) {
2252 			if (! (glob_sta & chip->codec_bit[i]))
2253 				continue;
2254 			if (chip->device_type == DEVICE_INTEL_ICH4) {
2255 				snd_intel8x0_codec_read_test(chip, codecs);
2256 				chip->ac97_sdin[codecs] =
2257 					igetbyte(chip, ICHREG(SDM)) & ICH_LDI_MASK;
2258 				if (snd_BUG_ON(chip->ac97_sdin[codecs] >= 3))
2259 					chip->ac97_sdin[codecs] = 0;
2260 			} else
2261 				chip->ac97_sdin[codecs] = i;
2262 			codecs++;
2263 		}
2264 		chip->in_sdin_init = 0;
2265 		if (! codecs)
2266 			codecs = 1;
2267 	} else {
2268 		ops = &ali_bus_ops;
2269 		codecs = 1;
2270 		/* detect the secondary codec */
2271 		for (i = 0; i < 100; i++) {
2272 			unsigned int reg = igetdword(chip, ICHREG(ALI_RTSR));
2273 			if (reg & 0x40) {
2274 				codecs = 2;
2275 				break;
2276 			}
2277 			iputdword(chip, ICHREG(ALI_RTSR), reg | 0x40);
2278 			udelay(1);
2279 		}
2280 	}
2281 	if ((err = snd_ac97_bus(chip->card, 0, ops, chip, &pbus)) < 0)
2282 		goto __err;
2283 	pbus->private_free = snd_intel8x0_mixer_free_ac97_bus;
2284 	if (ac97_clock >= 8000 && ac97_clock <= 48000)
2285 		pbus->clock = ac97_clock;
2286 	/* FIXME: my test board doesn't work well with VRA... */
2287 	if (chip->device_type == DEVICE_ALI)
2288 		pbus->no_vra = 1;
2289 	else
2290 		pbus->dra = 1;
2291 	chip->ac97_bus = pbus;
2292 	chip->ncodecs = codecs;
2293 
2294 	ac97.pci = chip->pci;
2295 	for (i = 0; i < codecs; i++) {
2296 		ac97.num = i;
2297 		if ((err = snd_ac97_mixer(pbus, &ac97, &chip->ac97[i])) < 0) {
2298 			if (err != -EACCES)
2299 				dev_err(chip->card->dev,
2300 					"Unable to initialize codec #%d\n", i);
2301 			if (i == 0)
2302 				goto __err;
2303 		}
2304 	}
2305 	/* tune up the primary codec */
2306 	snd_ac97_tune_hardware(chip->ac97[0], ac97_quirks, quirk_override);
2307 	/* enable separate SDINs for ICH4 */
2308 	if (chip->device_type == DEVICE_INTEL_ICH4)
2309 		pbus->isdin = 1;
2310 	/* find the available PCM streams */
2311 	i = ARRAY_SIZE(ac97_pcm_defs);
2312 	if (chip->device_type != DEVICE_INTEL_ICH4)
2313 		i -= 2;		/* do not allocate PCM2IN and MIC2 */
2314 	if (chip->spdif_idx < 0)
2315 		i--;		/* do not allocate S/PDIF */
2316 	err = snd_ac97_pcm_assign(pbus, i, ac97_pcm_defs);
2317 	if (err < 0)
2318 		goto __err;
2319 	chip->ichd[ICHD_PCMOUT].pcm = &pbus->pcms[0];
2320 	chip->ichd[ICHD_PCMIN].pcm = &pbus->pcms[1];
2321 	chip->ichd[ICHD_MIC].pcm = &pbus->pcms[2];
2322 	if (chip->spdif_idx >= 0)
2323 		chip->ichd[chip->spdif_idx].pcm = &pbus->pcms[3];
2324 	if (chip->device_type == DEVICE_INTEL_ICH4) {
2325 		chip->ichd[ICHD_PCM2IN].pcm = &pbus->pcms[4];
2326 		chip->ichd[ICHD_MIC2].pcm = &pbus->pcms[5];
2327 	}
2328 	/* enable separate SDINs for ICH4 */
2329 	if (chip->device_type == DEVICE_INTEL_ICH4) {
2330 		struct ac97_pcm *pcm = chip->ichd[ICHD_PCM2IN].pcm;
2331 		u8 tmp = igetbyte(chip, ICHREG(SDM));
2332 		tmp &= ~(ICH_DI2L_MASK|ICH_DI1L_MASK);
2333 		if (pcm) {
2334 			tmp |= ICH_SE;	/* steer enable for multiple SDINs */
2335 			tmp |= chip->ac97_sdin[0] << ICH_DI1L_SHIFT;
2336 			for (i = 1; i < 4; i++) {
2337 				if (pcm->r[0].codec[i]) {
2338 					tmp |= chip->ac97_sdin[pcm->r[0].codec[1]->num] << ICH_DI2L_SHIFT;
2339 					break;
2340 				}
2341 			}
2342 		} else {
2343 			tmp &= ~ICH_SE; /* steer disable */
2344 		}
2345 		iputbyte(chip, ICHREG(SDM), tmp);
2346 	}
2347 	if (pbus->pcms[0].r[0].slots & (1 << AC97_SLOT_PCM_SLEFT)) {
2348 		chip->multi4 = 1;
2349 		if (pbus->pcms[0].r[0].slots & (1 << AC97_SLOT_LFE)) {
2350 			chip->multi6 = 1;
2351 			if (chip->ac97[0]->flags & AC97_HAS_8CH)
2352 				chip->multi8 = 1;
2353 		}
2354 	}
2355 	if (pbus->pcms[0].r[1].rslots[0]) {
2356 		chip->dra = 1;
2357 	}
2358 	if (chip->device_type == DEVICE_INTEL_ICH4) {
2359 		if ((igetdword(chip, ICHREG(GLOB_STA)) & ICH_SAMPLE_CAP) == ICH_SAMPLE_16_20)
2360 			chip->smp20bit = 1;
2361 	}
2362 	if (chip->device_type == DEVICE_NFORCE && !spdif_aclink) {
2363 		/* 48kHz only */
2364 		chip->ichd[chip->spdif_idx].pcm->rates = SNDRV_PCM_RATE_48000;
2365 	}
2366 	if (chip->device_type == DEVICE_INTEL_ICH4 && !spdif_aclink) {
2367 		/* use slot 10/11 for SPDIF */
2368 		u32 val;
2369 		val = igetdword(chip, ICHREG(GLOB_CNT)) & ~ICH_PCM_SPDIF_MASK;
2370 		val |= ICH_PCM_SPDIF_1011;
2371 		iputdword(chip, ICHREG(GLOB_CNT), val);
2372 		snd_ac97_update_bits(chip->ac97[0], AC97_EXTENDED_STATUS, 0x03 << 4, 0x03 << 4);
2373 	}
2374 	chip->in_ac97_init = 0;
2375 	return 0;
2376 
2377  __err:
2378 	/* clear the cold-reset bit for the next chance */
2379 	if (chip->device_type != DEVICE_ALI)
2380 		iputdword(chip, ICHREG(GLOB_CNT),
2381 			  igetdword(chip, ICHREG(GLOB_CNT)) & ~ICH_AC97COLD);
2382 	return err;
2383 }
2384 
2385 
2386 /*
2387  *
2388  */
2389 
2390 static void do_ali_reset(struct intel8x0 *chip)
2391 {
2392 	iputdword(chip, ICHREG(ALI_SCR), ICH_ALI_SC_RESET);
2393 	iputdword(chip, ICHREG(ALI_FIFOCR1), 0x83838383);
2394 	iputdword(chip, ICHREG(ALI_FIFOCR2), 0x83838383);
2395 	iputdword(chip, ICHREG(ALI_FIFOCR3), 0x83838383);
2396 	iputdword(chip, ICHREG(ALI_INTERFACECR),
2397 		  ICH_ALI_IF_PI|ICH_ALI_IF_PO);
2398 	iputdword(chip, ICHREG(ALI_INTERRUPTCR), 0x00000000);
2399 	iputdword(chip, ICHREG(ALI_INTERRUPTSR), 0x00000000);
2400 }
2401 
2402 #ifdef CONFIG_SND_AC97_POWER_SAVE
2403 static struct snd_pci_quirk ich_chip_reset_mode[] = {
2404 	SND_PCI_QUIRK(0x1014, 0x051f, "Thinkpad R32", 1),
2405 	{ } /* end */
2406 };
2407 
2408 static int snd_intel8x0_ich_chip_cold_reset(struct intel8x0 *chip)
2409 {
2410 	unsigned int cnt;
2411 	/* ACLink on, 2 channels */
2412 
2413 	if (snd_pci_quirk_lookup(chip->pci, ich_chip_reset_mode))
2414 		return -EIO;
2415 
2416 	cnt = igetdword(chip, ICHREG(GLOB_CNT));
2417 	cnt &= ~(ICH_ACLINK | ICH_PCM_246_MASK);
2418 
2419 	/* do cold reset - the full ac97 powerdown may leave the controller
2420 	 * in a warm state but actually it cannot communicate with the codec.
2421 	 */
2422 	iputdword(chip, ICHREG(GLOB_CNT), cnt & ~ICH_AC97COLD);
2423 	cnt = igetdword(chip, ICHREG(GLOB_CNT));
2424 	udelay(10);
2425 	iputdword(chip, ICHREG(GLOB_CNT), cnt | ICH_AC97COLD);
2426 	msleep(1);
2427 	return 0;
2428 }
2429 #define snd_intel8x0_ich_chip_can_cold_reset(chip) \
2430 	(!snd_pci_quirk_lookup(chip->pci, ich_chip_reset_mode))
2431 #else
2432 #define snd_intel8x0_ich_chip_cold_reset(chip)	0
2433 #define snd_intel8x0_ich_chip_can_cold_reset(chip) (0)
2434 #endif
2435 
2436 static int snd_intel8x0_ich_chip_reset(struct intel8x0 *chip)
2437 {
2438 	unsigned long end_time;
2439 	unsigned int cnt;
2440 	/* ACLink on, 2 channels */
2441 	cnt = igetdword(chip, ICHREG(GLOB_CNT));
2442 	cnt &= ~(ICH_ACLINK | ICH_PCM_246_MASK);
2443 	/* finish cold or do warm reset */
2444 	cnt |= (cnt & ICH_AC97COLD) == 0 ? ICH_AC97COLD : ICH_AC97WARM;
2445 	iputdword(chip, ICHREG(GLOB_CNT), cnt);
2446 	end_time = (jiffies + (HZ / 4)) + 1;
2447 	do {
2448 		if ((igetdword(chip, ICHREG(GLOB_CNT)) & ICH_AC97WARM) == 0)
2449 			return 0;
2450 		schedule_timeout_uninterruptible(1);
2451 	} while (time_after_eq(end_time, jiffies));
2452 	dev_err(chip->card->dev, "AC'97 warm reset still in progress? [0x%x]\n",
2453 		   igetdword(chip, ICHREG(GLOB_CNT)));
2454 	return -EIO;
2455 }
2456 
2457 static int snd_intel8x0_ich_chip_init(struct intel8x0 *chip, int probing)
2458 {
2459 	unsigned long end_time;
2460 	unsigned int status, nstatus;
2461 	unsigned int cnt;
2462 	int err;
2463 
2464 	/* put logic to right state */
2465 	/* first clear status bits */
2466 	status = ICH_RCS | ICH_MCINT | ICH_POINT | ICH_PIINT;
2467 	if (chip->device_type == DEVICE_NFORCE)
2468 		status |= ICH_NVSPINT;
2469 	cnt = igetdword(chip, ICHREG(GLOB_STA));
2470 	iputdword(chip, ICHREG(GLOB_STA), cnt & status);
2471 
2472 	if (snd_intel8x0_ich_chip_can_cold_reset(chip))
2473 		err = snd_intel8x0_ich_chip_cold_reset(chip);
2474 	else
2475 		err = snd_intel8x0_ich_chip_reset(chip);
2476 	if (err < 0)
2477 		return err;
2478 
2479 	if (probing) {
2480 		/* wait for any codec ready status.
2481 		 * Once it becomes ready it should remain ready
2482 		 * as long as we do not disable the ac97 link.
2483 		 */
2484 		end_time = jiffies + HZ;
2485 		do {
2486 			status = igetdword(chip, ICHREG(GLOB_STA)) &
2487 				chip->codec_isr_bits;
2488 			if (status)
2489 				break;
2490 			schedule_timeout_uninterruptible(1);
2491 		} while (time_after_eq(end_time, jiffies));
2492 		if (! status) {
2493 			/* no codec is found */
2494 			dev_err(chip->card->dev,
2495 				"codec_ready: codec is not ready [0x%x]\n",
2496 				   igetdword(chip, ICHREG(GLOB_STA)));
2497 			return -EIO;
2498 		}
2499 
2500 		/* wait for other codecs ready status. */
2501 		end_time = jiffies + HZ / 4;
2502 		while (status != chip->codec_isr_bits &&
2503 		       time_after_eq(end_time, jiffies)) {
2504 			schedule_timeout_uninterruptible(1);
2505 			status |= igetdword(chip, ICHREG(GLOB_STA)) &
2506 				chip->codec_isr_bits;
2507 		}
2508 
2509 	} else {
2510 		/* resume phase */
2511 		int i;
2512 		status = 0;
2513 		for (i = 0; i < chip->ncodecs; i++)
2514 			if (chip->ac97[i])
2515 				status |= chip->codec_bit[chip->ac97_sdin[i]];
2516 		/* wait until all the probed codecs are ready */
2517 		end_time = jiffies + HZ;
2518 		do {
2519 			nstatus = igetdword(chip, ICHREG(GLOB_STA)) &
2520 				chip->codec_isr_bits;
2521 			if (status == nstatus)
2522 				break;
2523 			schedule_timeout_uninterruptible(1);
2524 		} while (time_after_eq(end_time, jiffies));
2525 	}
2526 
2527 	if (chip->device_type == DEVICE_SIS) {
2528 		/* unmute the output on SIS7012 */
2529 		iputword(chip, 0x4c, igetword(chip, 0x4c) | 1);
2530 	}
2531 	if (chip->device_type == DEVICE_NFORCE && !spdif_aclink) {
2532 		/* enable SPDIF interrupt */
2533 		unsigned int val;
2534 		pci_read_config_dword(chip->pci, 0x4c, &val);
2535 		val |= 0x1000000;
2536 		pci_write_config_dword(chip->pci, 0x4c, val);
2537 	}
2538       	return 0;
2539 }
2540 
2541 static int snd_intel8x0_ali_chip_init(struct intel8x0 *chip, int probing)
2542 {
2543 	u32 reg;
2544 	int i = 0;
2545 
2546 	reg = igetdword(chip, ICHREG(ALI_SCR));
2547 	if ((reg & 2) == 0)	/* Cold required */
2548 		reg |= 2;
2549 	else
2550 		reg |= 1;	/* Warm */
2551 	reg &= ~0x80000000;	/* ACLink on */
2552 	iputdword(chip, ICHREG(ALI_SCR), reg);
2553 
2554 	for (i = 0; i < HZ / 2; i++) {
2555 		if (! (igetdword(chip, ICHREG(ALI_INTERRUPTSR)) & ALI_INT_GPIO))
2556 			goto __ok;
2557 		schedule_timeout_uninterruptible(1);
2558 	}
2559 	dev_err(chip->card->dev, "AC'97 reset failed.\n");
2560 	if (probing)
2561 		return -EIO;
2562 
2563  __ok:
2564 	for (i = 0; i < HZ / 2; i++) {
2565 		reg = igetdword(chip, ICHREG(ALI_RTSR));
2566 		if (reg & 0x80) /* primary codec */
2567 			break;
2568 		iputdword(chip, ICHREG(ALI_RTSR), reg | 0x80);
2569 		schedule_timeout_uninterruptible(1);
2570 	}
2571 
2572 	do_ali_reset(chip);
2573 	return 0;
2574 }
2575 
2576 static int snd_intel8x0_chip_init(struct intel8x0 *chip, int probing)
2577 {
2578 	unsigned int i, timeout;
2579 	int err;
2580 
2581 	if (chip->device_type != DEVICE_ALI) {
2582 		if ((err = snd_intel8x0_ich_chip_init(chip, probing)) < 0)
2583 			return err;
2584 		iagetword(chip, 0);	/* clear semaphore flag */
2585 	} else {
2586 		if ((err = snd_intel8x0_ali_chip_init(chip, probing)) < 0)
2587 			return err;
2588 	}
2589 
2590 	/* disable interrupts */
2591 	for (i = 0; i < chip->bdbars_count; i++)
2592 		iputbyte(chip, ICH_REG_OFF_CR + chip->ichd[i].reg_offset, 0x00);
2593 	/* reset channels */
2594 	for (i = 0; i < chip->bdbars_count; i++)
2595 		iputbyte(chip, ICH_REG_OFF_CR + chip->ichd[i].reg_offset, ICH_RESETREGS);
2596 	for (i = 0; i < chip->bdbars_count; i++) {
2597 	        timeout = 100000;
2598 	        while (--timeout != 0) {
2599         		if ((igetbyte(chip, ICH_REG_OFF_CR + chip->ichd[i].reg_offset) & ICH_RESETREGS) == 0)
2600         		        break;
2601                 }
2602                 if (timeout == 0)
2603 			dev_err(chip->card->dev, "reset of registers failed?\n");
2604         }
2605 	/* initialize Buffer Descriptor Lists */
2606 	for (i = 0; i < chip->bdbars_count; i++)
2607 		iputdword(chip, ICH_REG_OFF_BDBAR + chip->ichd[i].reg_offset,
2608 			  chip->ichd[i].bdbar_addr);
2609 	return 0;
2610 }
2611 
2612 static int snd_intel8x0_free(struct intel8x0 *chip)
2613 {
2614 	unsigned int i;
2615 
2616 	if (chip->irq < 0)
2617 		goto __hw_end;
2618 	/* disable interrupts */
2619 	for (i = 0; i < chip->bdbars_count; i++)
2620 		iputbyte(chip, ICH_REG_OFF_CR + chip->ichd[i].reg_offset, 0x00);
2621 	/* reset channels */
2622 	for (i = 0; i < chip->bdbars_count; i++)
2623 		iputbyte(chip, ICH_REG_OFF_CR + chip->ichd[i].reg_offset, ICH_RESETREGS);
2624 	if (chip->device_type == DEVICE_NFORCE && !spdif_aclink) {
2625 		/* stop the spdif interrupt */
2626 		unsigned int val;
2627 		pci_read_config_dword(chip->pci, 0x4c, &val);
2628 		val &= ~0x1000000;
2629 		pci_write_config_dword(chip->pci, 0x4c, val);
2630 	}
2631 	/* --- */
2632 
2633       __hw_end:
2634 	if (chip->irq >= 0)
2635 		free_irq(chip->irq, chip);
2636 	if (chip->bdbars.area) {
2637 		if (chip->fix_nocache)
2638 			fill_nocache(chip->bdbars.area, chip->bdbars.bytes, 0);
2639 		snd_dma_free_pages(&chip->bdbars);
2640 	}
2641 	if (chip->addr)
2642 		pci_iounmap(chip->pci, chip->addr);
2643 	if (chip->bmaddr)
2644 		pci_iounmap(chip->pci, chip->bmaddr);
2645 	pci_release_regions(chip->pci);
2646 	pci_disable_device(chip->pci);
2647 	kfree(chip);
2648 	return 0;
2649 }
2650 
2651 #ifdef CONFIG_PM_SLEEP
2652 /*
2653  * power management
2654  */
2655 static int intel8x0_suspend(struct device *dev)
2656 {
2657 	struct pci_dev *pci = to_pci_dev(dev);
2658 	struct snd_card *card = dev_get_drvdata(dev);
2659 	struct intel8x0 *chip = card->private_data;
2660 	int i;
2661 
2662 	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
2663 	for (i = 0; i < chip->pcm_devs; i++)
2664 		snd_pcm_suspend_all(chip->pcm[i]);
2665 	/* clear nocache */
2666 	if (chip->fix_nocache) {
2667 		for (i = 0; i < chip->bdbars_count; i++) {
2668 			struct ichdev *ichdev = &chip->ichd[i];
2669 			if (ichdev->substream && ichdev->page_attr_changed) {
2670 				struct snd_pcm_runtime *runtime = ichdev->substream->runtime;
2671 				if (runtime->dma_area)
2672 					fill_nocache(runtime->dma_area, runtime->dma_bytes, 0);
2673 			}
2674 		}
2675 	}
2676 	for (i = 0; i < chip->ncodecs; i++)
2677 		snd_ac97_suspend(chip->ac97[i]);
2678 	if (chip->device_type == DEVICE_INTEL_ICH4)
2679 		chip->sdm_saved = igetbyte(chip, ICHREG(SDM));
2680 
2681 	if (chip->irq >= 0) {
2682 		free_irq(chip->irq, chip);
2683 		chip->irq = -1;
2684 	}
2685 	pci_disable_device(pci);
2686 	pci_save_state(pci);
2687 	/* The call below may disable built-in speaker on some laptops
2688 	 * after S2RAM.  So, don't touch it.
2689 	 */
2690 	/* pci_set_power_state(pci, PCI_D3hot); */
2691 	return 0;
2692 }
2693 
2694 static int intel8x0_resume(struct device *dev)
2695 {
2696 	struct pci_dev *pci = to_pci_dev(dev);
2697 	struct snd_card *card = dev_get_drvdata(dev);
2698 	struct intel8x0 *chip = card->private_data;
2699 	int i;
2700 
2701 	pci_set_power_state(pci, PCI_D0);
2702 	pci_restore_state(pci);
2703 	if (pci_enable_device(pci) < 0) {
2704 		dev_err(dev, "pci_enable_device failed, disabling device\n");
2705 		snd_card_disconnect(card);
2706 		return -EIO;
2707 	}
2708 	pci_set_master(pci);
2709 	snd_intel8x0_chip_init(chip, 0);
2710 	if (request_irq(pci->irq, snd_intel8x0_interrupt,
2711 			IRQF_SHARED, KBUILD_MODNAME, chip)) {
2712 		dev_err(dev, "unable to grab IRQ %d, disabling device\n",
2713 			pci->irq);
2714 		snd_card_disconnect(card);
2715 		return -EIO;
2716 	}
2717 	chip->irq = pci->irq;
2718 	synchronize_irq(chip->irq);
2719 
2720 	/* re-initialize mixer stuff */
2721 	if (chip->device_type == DEVICE_INTEL_ICH4 && !spdif_aclink) {
2722 		/* enable separate SDINs for ICH4 */
2723 		iputbyte(chip, ICHREG(SDM), chip->sdm_saved);
2724 		/* use slot 10/11 for SPDIF */
2725 		iputdword(chip, ICHREG(GLOB_CNT),
2726 			  (igetdword(chip, ICHREG(GLOB_CNT)) & ~ICH_PCM_SPDIF_MASK) |
2727 			  ICH_PCM_SPDIF_1011);
2728 	}
2729 
2730 	/* refill nocache */
2731 	if (chip->fix_nocache)
2732 		fill_nocache(chip->bdbars.area, chip->bdbars.bytes, 1);
2733 
2734 	for (i = 0; i < chip->ncodecs; i++)
2735 		snd_ac97_resume(chip->ac97[i]);
2736 
2737 	/* refill nocache */
2738 	if (chip->fix_nocache) {
2739 		for (i = 0; i < chip->bdbars_count; i++) {
2740 			struct ichdev *ichdev = &chip->ichd[i];
2741 			if (ichdev->substream && ichdev->page_attr_changed) {
2742 				struct snd_pcm_runtime *runtime = ichdev->substream->runtime;
2743 				if (runtime->dma_area)
2744 					fill_nocache(runtime->dma_area, runtime->dma_bytes, 1);
2745 			}
2746 		}
2747 	}
2748 
2749 	/* resume status */
2750 	for (i = 0; i < chip->bdbars_count; i++) {
2751 		struct ichdev *ichdev = &chip->ichd[i];
2752 		unsigned long port = ichdev->reg_offset;
2753 		if (! ichdev->substream || ! ichdev->suspended)
2754 			continue;
2755 		if (ichdev->ichd == ICHD_PCMOUT)
2756 			snd_intel8x0_setup_pcm_out(chip, ichdev->substream->runtime);
2757 		iputdword(chip, port + ICH_REG_OFF_BDBAR, ichdev->bdbar_addr);
2758 		iputbyte(chip, port + ICH_REG_OFF_LVI, ichdev->lvi);
2759 		iputbyte(chip, port + ICH_REG_OFF_CIV, ichdev->civ);
2760 		iputbyte(chip, port + ichdev->roff_sr, ICH_FIFOE | ICH_BCIS | ICH_LVBCI);
2761 	}
2762 
2763 	snd_power_change_state(card, SNDRV_CTL_POWER_D0);
2764 	return 0;
2765 }
2766 
2767 static SIMPLE_DEV_PM_OPS(intel8x0_pm, intel8x0_suspend, intel8x0_resume);
2768 #define INTEL8X0_PM_OPS	&intel8x0_pm
2769 #else
2770 #define INTEL8X0_PM_OPS	NULL
2771 #endif /* CONFIG_PM_SLEEP */
2772 
2773 #define INTEL8X0_TESTBUF_SIZE	32768	/* enough large for one shot */
2774 
2775 static void intel8x0_measure_ac97_clock(struct intel8x0 *chip)
2776 {
2777 	struct snd_pcm_substream *subs;
2778 	struct ichdev *ichdev;
2779 	unsigned long port;
2780 	unsigned long pos, pos1, t;
2781 	int civ, timeout = 1000, attempt = 1;
2782 	ktime_t start_time, stop_time;
2783 
2784 	if (chip->ac97_bus->clock != 48000)
2785 		return; /* specified in module option */
2786 
2787       __again:
2788 	subs = chip->pcm[0]->streams[0].substream;
2789 	if (! subs || subs->dma_buffer.bytes < INTEL8X0_TESTBUF_SIZE) {
2790 		dev_warn(chip->card->dev,
2791 			 "no playback buffer allocated - aborting measure ac97 clock\n");
2792 		return;
2793 	}
2794 	ichdev = &chip->ichd[ICHD_PCMOUT];
2795 	ichdev->physbuf = subs->dma_buffer.addr;
2796 	ichdev->size = ichdev->fragsize = INTEL8X0_TESTBUF_SIZE;
2797 	ichdev->substream = NULL; /* don't process interrupts */
2798 
2799 	/* set rate */
2800 	if (snd_ac97_set_rate(chip->ac97[0], AC97_PCM_FRONT_DAC_RATE, 48000) < 0) {
2801 		dev_err(chip->card->dev, "cannot set ac97 rate: clock = %d\n",
2802 			chip->ac97_bus->clock);
2803 		return;
2804 	}
2805 	snd_intel8x0_setup_periods(chip, ichdev);
2806 	port = ichdev->reg_offset;
2807 	spin_lock_irq(&chip->reg_lock);
2808 	chip->in_measurement = 1;
2809 	/* trigger */
2810 	if (chip->device_type != DEVICE_ALI)
2811 		iputbyte(chip, port + ICH_REG_OFF_CR, ICH_IOCE | ICH_STARTBM);
2812 	else {
2813 		iputbyte(chip, port + ICH_REG_OFF_CR, ICH_IOCE);
2814 		iputdword(chip, ICHREG(ALI_DMACR), 1 << ichdev->ali_slot);
2815 	}
2816 	start_time = ktime_get();
2817 	spin_unlock_irq(&chip->reg_lock);
2818 	msleep(50);
2819 	spin_lock_irq(&chip->reg_lock);
2820 	/* check the position */
2821 	do {
2822 		civ = igetbyte(chip, ichdev->reg_offset + ICH_REG_OFF_CIV);
2823 		pos1 = igetword(chip, ichdev->reg_offset + ichdev->roff_picb);
2824 		if (pos1 == 0) {
2825 			udelay(10);
2826 			continue;
2827 		}
2828 		if (civ == igetbyte(chip, ichdev->reg_offset + ICH_REG_OFF_CIV) &&
2829 		    pos1 == igetword(chip, ichdev->reg_offset + ichdev->roff_picb))
2830 			break;
2831 	} while (timeout--);
2832 	if (pos1 == 0) {	/* oops, this value is not reliable */
2833 		pos = 0;
2834 	} else {
2835 		pos = ichdev->fragsize1;
2836 		pos -= pos1 << ichdev->pos_shift;
2837 		pos += ichdev->position;
2838 	}
2839 	chip->in_measurement = 0;
2840 	stop_time = ktime_get();
2841 	/* stop */
2842 	if (chip->device_type == DEVICE_ALI) {
2843 		iputdword(chip, ICHREG(ALI_DMACR), 1 << (ichdev->ali_slot + 16));
2844 		iputbyte(chip, port + ICH_REG_OFF_CR, 0);
2845 		while (igetbyte(chip, port + ICH_REG_OFF_CR))
2846 			;
2847 	} else {
2848 		iputbyte(chip, port + ICH_REG_OFF_CR, 0);
2849 		while (!(igetbyte(chip, port + ichdev->roff_sr) & ICH_DCH))
2850 			;
2851 	}
2852 	iputbyte(chip, port + ICH_REG_OFF_CR, ICH_RESETREGS);
2853 	spin_unlock_irq(&chip->reg_lock);
2854 
2855 	if (pos == 0) {
2856 		dev_err(chip->card->dev,
2857 			"measure - unreliable DMA position..\n");
2858 	      __retry:
2859 		if (attempt < 3) {
2860 			msleep(300);
2861 			attempt++;
2862 			goto __again;
2863 		}
2864 		goto __end;
2865 	}
2866 
2867 	pos /= 4;
2868 	t = ktime_us_delta(stop_time, start_time);
2869 	dev_info(chip->card->dev,
2870 		 "%s: measured %lu usecs (%lu samples)\n", __func__, t, pos);
2871 	if (t == 0) {
2872 		dev_err(chip->card->dev, "?? calculation error..\n");
2873 		goto __retry;
2874 	}
2875 	pos *= 1000;
2876 	pos = (pos / t) * 1000 + ((pos % t) * 1000) / t;
2877 	if (pos < 40000 || pos >= 60000) {
2878 		/* abnormal value. hw problem? */
2879 		dev_info(chip->card->dev, "measured clock %ld rejected\n", pos);
2880 		goto __retry;
2881 	} else if (pos > 40500 && pos < 41500)
2882 		/* first exception - 41000Hz reference clock */
2883 		chip->ac97_bus->clock = 41000;
2884 	else if (pos > 43600 && pos < 44600)
2885 		/* second exception - 44100HZ reference clock */
2886 		chip->ac97_bus->clock = 44100;
2887 	else if (pos < 47500 || pos > 48500)
2888 		/* not 48000Hz, tuning the clock.. */
2889 		chip->ac97_bus->clock = (chip->ac97_bus->clock * 48000) / pos;
2890       __end:
2891 	dev_info(chip->card->dev, "clocking to %d\n", chip->ac97_bus->clock);
2892 	snd_ac97_update_power(chip->ac97[0], AC97_PCM_FRONT_DAC_RATE, 0);
2893 }
2894 
2895 static struct snd_pci_quirk intel8x0_clock_list[] = {
2896 	SND_PCI_QUIRK(0x0e11, 0x008a, "AD1885", 41000),
2897 	SND_PCI_QUIRK(0x1028, 0x00be, "AD1885", 44100),
2898 	SND_PCI_QUIRK(0x1028, 0x0177, "AD1980", 48000),
2899 	SND_PCI_QUIRK(0x1028, 0x01ad, "AD1981B", 48000),
2900 	SND_PCI_QUIRK(0x1043, 0x80f3, "AD1985", 48000),
2901 	{ }	/* terminator */
2902 };
2903 
2904 static int intel8x0_in_clock_list(struct intel8x0 *chip)
2905 {
2906 	struct pci_dev *pci = chip->pci;
2907 	const struct snd_pci_quirk *wl;
2908 
2909 	wl = snd_pci_quirk_lookup(pci, intel8x0_clock_list);
2910 	if (!wl)
2911 		return 0;
2912 	dev_info(chip->card->dev, "white list rate for %04x:%04x is %i\n",
2913 	       pci->subsystem_vendor, pci->subsystem_device, wl->value);
2914 	chip->ac97_bus->clock = wl->value;
2915 	return 1;
2916 }
2917 
2918 #ifdef CONFIG_PROC_FS
2919 static void snd_intel8x0_proc_read(struct snd_info_entry * entry,
2920 				   struct snd_info_buffer *buffer)
2921 {
2922 	struct intel8x0 *chip = entry->private_data;
2923 	unsigned int tmp;
2924 
2925 	snd_iprintf(buffer, "Intel8x0\n\n");
2926 	if (chip->device_type == DEVICE_ALI)
2927 		return;
2928 	tmp = igetdword(chip, ICHREG(GLOB_STA));
2929 	snd_iprintf(buffer, "Global control        : 0x%08x\n", igetdword(chip, ICHREG(GLOB_CNT)));
2930 	snd_iprintf(buffer, "Global status         : 0x%08x\n", tmp);
2931 	if (chip->device_type == DEVICE_INTEL_ICH4)
2932 		snd_iprintf(buffer, "SDM                   : 0x%08x\n", igetdword(chip, ICHREG(SDM)));
2933 	snd_iprintf(buffer, "AC'97 codecs ready    :");
2934 	if (tmp & chip->codec_isr_bits) {
2935 		int i;
2936 		static const char *codecs[3] = {
2937 			"primary", "secondary", "tertiary"
2938 		};
2939 		for (i = 0; i < chip->max_codecs; i++)
2940 			if (tmp & chip->codec_bit[i])
2941 				snd_iprintf(buffer, " %s", codecs[i]);
2942 	} else
2943 		snd_iprintf(buffer, " none");
2944 	snd_iprintf(buffer, "\n");
2945 	if (chip->device_type == DEVICE_INTEL_ICH4 ||
2946 	    chip->device_type == DEVICE_SIS)
2947 		snd_iprintf(buffer, "AC'97 codecs SDIN     : %i %i %i\n",
2948 			chip->ac97_sdin[0],
2949 			chip->ac97_sdin[1],
2950 			chip->ac97_sdin[2]);
2951 }
2952 
2953 static void snd_intel8x0_proc_init(struct intel8x0 *chip)
2954 {
2955 	struct snd_info_entry *entry;
2956 
2957 	if (! snd_card_proc_new(chip->card, "intel8x0", &entry))
2958 		snd_info_set_text_ops(entry, chip, snd_intel8x0_proc_read);
2959 }
2960 #else
2961 #define snd_intel8x0_proc_init(x)
2962 #endif
2963 
2964 static int snd_intel8x0_dev_free(struct snd_device *device)
2965 {
2966 	struct intel8x0 *chip = device->device_data;
2967 	return snd_intel8x0_free(chip);
2968 }
2969 
2970 struct ich_reg_info {
2971 	unsigned int int_sta_mask;
2972 	unsigned int offset;
2973 };
2974 
2975 static unsigned int ich_codec_bits[3] = {
2976 	ICH_PCR, ICH_SCR, ICH_TCR
2977 };
2978 static unsigned int sis_codec_bits[3] = {
2979 	ICH_PCR, ICH_SCR, ICH_SIS_TCR
2980 };
2981 
2982 static int snd_intel8x0_inside_vm(struct pci_dev *pci)
2983 {
2984 	int result  = inside_vm;
2985 	char *msg   = NULL;
2986 
2987 	/* check module parameter first (override detection) */
2988 	if (result >= 0) {
2989 		msg = result ? "enable (forced) VM" : "disable (forced) VM";
2990 		goto fini;
2991 	}
2992 
2993 	/* detect KVM and Parallels virtual environments */
2994 	result = kvm_para_available();
2995 #ifdef X86_FEATURE_HYPERVISOR
2996 	result = result || boot_cpu_has(X86_FEATURE_HYPERVISOR);
2997 #endif
2998 	if (!result)
2999 		goto fini;
3000 
3001 	/* check for known (emulated) devices */
3002 	if (pci->subsystem_vendor == 0x1af4 &&
3003 	    pci->subsystem_device == 0x1100) {
3004 		/* KVM emulated sound, PCI SSID: 1af4:1100 */
3005 		msg = "enable KVM";
3006 	} else if (pci->subsystem_vendor == 0x1ab8) {
3007 		/* Parallels VM emulated sound, PCI SSID: 1ab8:xxxx */
3008 		msg = "enable Parallels VM";
3009 	} else {
3010 		msg = "disable (unknown or VT-d) VM";
3011 		result = 0;
3012 	}
3013 
3014 fini:
3015 	if (msg != NULL)
3016 		dev_info(&pci->dev, "%s optimization\n", msg);
3017 
3018 	return result;
3019 }
3020 
3021 static int snd_intel8x0_create(struct snd_card *card,
3022 			       struct pci_dev *pci,
3023 			       unsigned long device_type,
3024 			       struct intel8x0 **r_intel8x0)
3025 {
3026 	struct intel8x0 *chip;
3027 	int err;
3028 	unsigned int i;
3029 	unsigned int int_sta_masks;
3030 	struct ichdev *ichdev;
3031 	static struct snd_device_ops ops = {
3032 		.dev_free =	snd_intel8x0_dev_free,
3033 	};
3034 
3035 	static unsigned int bdbars[] = {
3036 		3, /* DEVICE_INTEL */
3037 		6, /* DEVICE_INTEL_ICH4 */
3038 		3, /* DEVICE_SIS */
3039 		6, /* DEVICE_ALI */
3040 		4, /* DEVICE_NFORCE */
3041 	};
3042 	static struct ich_reg_info intel_regs[6] = {
3043 		{ ICH_PIINT, 0 },
3044 		{ ICH_POINT, 0x10 },
3045 		{ ICH_MCINT, 0x20 },
3046 		{ ICH_M2INT, 0x40 },
3047 		{ ICH_P2INT, 0x50 },
3048 		{ ICH_SPINT, 0x60 },
3049 	};
3050 	static struct ich_reg_info nforce_regs[4] = {
3051 		{ ICH_PIINT, 0 },
3052 		{ ICH_POINT, 0x10 },
3053 		{ ICH_MCINT, 0x20 },
3054 		{ ICH_NVSPINT, 0x70 },
3055 	};
3056 	static struct ich_reg_info ali_regs[6] = {
3057 		{ ALI_INT_PCMIN, 0x40 },
3058 		{ ALI_INT_PCMOUT, 0x50 },
3059 		{ ALI_INT_MICIN, 0x60 },
3060 		{ ALI_INT_CODECSPDIFOUT, 0x70 },
3061 		{ ALI_INT_SPDIFIN, 0xa0 },
3062 		{ ALI_INT_SPDIFOUT, 0xb0 },
3063 	};
3064 	struct ich_reg_info *tbl;
3065 
3066 	*r_intel8x0 = NULL;
3067 
3068 	if ((err = pci_enable_device(pci)) < 0)
3069 		return err;
3070 
3071 	chip = kzalloc(sizeof(*chip), GFP_KERNEL);
3072 	if (chip == NULL) {
3073 		pci_disable_device(pci);
3074 		return -ENOMEM;
3075 	}
3076 	spin_lock_init(&chip->reg_lock);
3077 	chip->device_type = device_type;
3078 	chip->card = card;
3079 	chip->pci = pci;
3080 	chip->irq = -1;
3081 
3082 	/* module parameters */
3083 	chip->buggy_irq = buggy_irq;
3084 	chip->buggy_semaphore = buggy_semaphore;
3085 	if (xbox)
3086 		chip->xbox = 1;
3087 
3088 	chip->inside_vm = snd_intel8x0_inside_vm(pci);
3089 
3090 	if (pci->vendor == PCI_VENDOR_ID_INTEL &&
3091 	    pci->device == PCI_DEVICE_ID_INTEL_440MX)
3092 		chip->fix_nocache = 1; /* enable workaround */
3093 
3094 	if ((err = pci_request_regions(pci, card->shortname)) < 0) {
3095 		kfree(chip);
3096 		pci_disable_device(pci);
3097 		return err;
3098 	}
3099 
3100 	if (device_type == DEVICE_ALI) {
3101 		/* ALI5455 has no ac97 region */
3102 		chip->bmaddr = pci_iomap(pci, 0, 0);
3103 		goto port_inited;
3104 	}
3105 
3106 	if (pci_resource_flags(pci, 2) & IORESOURCE_MEM) /* ICH4 and Nforce */
3107 		chip->addr = pci_iomap(pci, 2, 0);
3108 	else
3109 		chip->addr = pci_iomap(pci, 0, 0);
3110 	if (!chip->addr) {
3111 		dev_err(card->dev, "AC'97 space ioremap problem\n");
3112 		snd_intel8x0_free(chip);
3113 		return -EIO;
3114 	}
3115 	if (pci_resource_flags(pci, 3) & IORESOURCE_MEM) /* ICH4 */
3116 		chip->bmaddr = pci_iomap(pci, 3, 0);
3117 	else
3118 		chip->bmaddr = pci_iomap(pci, 1, 0);
3119 	if (!chip->bmaddr) {
3120 		dev_err(card->dev, "Controller space ioremap problem\n");
3121 		snd_intel8x0_free(chip);
3122 		return -EIO;
3123 	}
3124 
3125  port_inited:
3126 	chip->bdbars_count = bdbars[device_type];
3127 
3128 	/* initialize offsets */
3129 	switch (device_type) {
3130 	case DEVICE_NFORCE:
3131 		tbl = nforce_regs;
3132 		break;
3133 	case DEVICE_ALI:
3134 		tbl = ali_regs;
3135 		break;
3136 	default:
3137 		tbl = intel_regs;
3138 		break;
3139 	}
3140 	for (i = 0; i < chip->bdbars_count; i++) {
3141 		ichdev = &chip->ichd[i];
3142 		ichdev->ichd = i;
3143 		ichdev->reg_offset = tbl[i].offset;
3144 		ichdev->int_sta_mask = tbl[i].int_sta_mask;
3145 		if (device_type == DEVICE_SIS) {
3146 			/* SiS 7012 swaps the registers */
3147 			ichdev->roff_sr = ICH_REG_OFF_PICB;
3148 			ichdev->roff_picb = ICH_REG_OFF_SR;
3149 		} else {
3150 			ichdev->roff_sr = ICH_REG_OFF_SR;
3151 			ichdev->roff_picb = ICH_REG_OFF_PICB;
3152 		}
3153 		if (device_type == DEVICE_ALI)
3154 			ichdev->ali_slot = (ichdev->reg_offset - 0x40) / 0x10;
3155 		/* SIS7012 handles the pcm data in bytes, others are in samples */
3156 		ichdev->pos_shift = (device_type == DEVICE_SIS) ? 0 : 1;
3157 	}
3158 
3159 	/* allocate buffer descriptor lists */
3160 	/* the start of each lists must be aligned to 8 bytes */
3161 	if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci),
3162 				chip->bdbars_count * sizeof(u32) * ICH_MAX_FRAGS * 2,
3163 				&chip->bdbars) < 0) {
3164 		snd_intel8x0_free(chip);
3165 		dev_err(card->dev, "cannot allocate buffer descriptors\n");
3166 		return -ENOMEM;
3167 	}
3168 	/* tables must be aligned to 8 bytes here, but the kernel pages
3169 	   are much bigger, so we don't care (on i386) */
3170 	/* workaround for 440MX */
3171 	if (chip->fix_nocache)
3172 		fill_nocache(chip->bdbars.area, chip->bdbars.bytes, 1);
3173 	int_sta_masks = 0;
3174 	for (i = 0; i < chip->bdbars_count; i++) {
3175 		ichdev = &chip->ichd[i];
3176 		ichdev->bdbar = ((u32 *)chip->bdbars.area) +
3177 			(i * ICH_MAX_FRAGS * 2);
3178 		ichdev->bdbar_addr = chip->bdbars.addr +
3179 			(i * sizeof(u32) * ICH_MAX_FRAGS * 2);
3180 		int_sta_masks |= ichdev->int_sta_mask;
3181 	}
3182 	chip->int_sta_reg = device_type == DEVICE_ALI ?
3183 		ICH_REG_ALI_INTERRUPTSR : ICH_REG_GLOB_STA;
3184 	chip->int_sta_mask = int_sta_masks;
3185 
3186 	pci_set_master(pci);
3187 
3188 	switch(chip->device_type) {
3189 	case DEVICE_INTEL_ICH4:
3190 		/* ICH4 can have three codecs */
3191 		chip->max_codecs = 3;
3192 		chip->codec_bit = ich_codec_bits;
3193 		chip->codec_ready_bits = ICH_PRI | ICH_SRI | ICH_TRI;
3194 		break;
3195 	case DEVICE_SIS:
3196 		/* recent SIS7012 can have three codecs */
3197 		chip->max_codecs = 3;
3198 		chip->codec_bit = sis_codec_bits;
3199 		chip->codec_ready_bits = ICH_PRI | ICH_SRI | ICH_SIS_TRI;
3200 		break;
3201 	default:
3202 		/* others up to two codecs */
3203 		chip->max_codecs = 2;
3204 		chip->codec_bit = ich_codec_bits;
3205 		chip->codec_ready_bits = ICH_PRI | ICH_SRI;
3206 		break;
3207 	}
3208 	for (i = 0; i < chip->max_codecs; i++)
3209 		chip->codec_isr_bits |= chip->codec_bit[i];
3210 
3211 	if ((err = snd_intel8x0_chip_init(chip, 1)) < 0) {
3212 		snd_intel8x0_free(chip);
3213 		return err;
3214 	}
3215 
3216 	/* request irq after initializaing int_sta_mask, etc */
3217 	if (request_irq(pci->irq, snd_intel8x0_interrupt,
3218 			IRQF_SHARED, KBUILD_MODNAME, chip)) {
3219 		dev_err(card->dev, "unable to grab IRQ %d\n", pci->irq);
3220 		snd_intel8x0_free(chip);
3221 		return -EBUSY;
3222 	}
3223 	chip->irq = pci->irq;
3224 
3225 	if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
3226 		snd_intel8x0_free(chip);
3227 		return err;
3228 	}
3229 
3230 	*r_intel8x0 = chip;
3231 	return 0;
3232 }
3233 
3234 static struct shortname_table {
3235 	unsigned int id;
3236 	const char *s;
3237 } shortnames[] = {
3238 	{ PCI_DEVICE_ID_INTEL_82801AA_5, "Intel 82801AA-ICH" },
3239 	{ PCI_DEVICE_ID_INTEL_82801AB_5, "Intel 82901AB-ICH0" },
3240 	{ PCI_DEVICE_ID_INTEL_82801BA_4, "Intel 82801BA-ICH2" },
3241 	{ PCI_DEVICE_ID_INTEL_440MX, "Intel 440MX" },
3242 	{ PCI_DEVICE_ID_INTEL_82801CA_5, "Intel 82801CA-ICH3" },
3243 	{ PCI_DEVICE_ID_INTEL_82801DB_5, "Intel 82801DB-ICH4" },
3244 	{ PCI_DEVICE_ID_INTEL_82801EB_5, "Intel ICH5" },
3245 	{ PCI_DEVICE_ID_INTEL_ESB_5, "Intel 6300ESB" },
3246 	{ PCI_DEVICE_ID_INTEL_ICH6_18, "Intel ICH6" },
3247 	{ PCI_DEVICE_ID_INTEL_ICH7_20, "Intel ICH7" },
3248 	{ PCI_DEVICE_ID_INTEL_ESB2_14, "Intel ESB2" },
3249 	{ PCI_DEVICE_ID_SI_7012, "SiS SI7012" },
3250 	{ PCI_DEVICE_ID_NVIDIA_MCP1_AUDIO, "NVidia nForce" },
3251 	{ PCI_DEVICE_ID_NVIDIA_MCP2_AUDIO, "NVidia nForce2" },
3252 	{ PCI_DEVICE_ID_NVIDIA_MCP3_AUDIO, "NVidia nForce3" },
3253 	{ PCI_DEVICE_ID_NVIDIA_CK8S_AUDIO, "NVidia CK8S" },
3254 	{ PCI_DEVICE_ID_NVIDIA_CK804_AUDIO, "NVidia CK804" },
3255 	{ PCI_DEVICE_ID_NVIDIA_CK8_AUDIO, "NVidia CK8" },
3256 	{ 0x003a, "NVidia MCP04" },
3257 	{ 0x746d, "AMD AMD8111" },
3258 	{ 0x7445, "AMD AMD768" },
3259 	{ 0x5455, "ALi M5455" },
3260 	{ 0, NULL },
3261 };
3262 
3263 static struct snd_pci_quirk spdif_aclink_defaults[] = {
3264 	SND_PCI_QUIRK(0x147b, 0x1c1a, "ASUS KN8", 1),
3265 	{ } /* end */
3266 };
3267 
3268 /* look up white/black list for SPDIF over ac-link */
3269 static int check_default_spdif_aclink(struct pci_dev *pci)
3270 {
3271 	const struct snd_pci_quirk *w;
3272 
3273 	w = snd_pci_quirk_lookup(pci, spdif_aclink_defaults);
3274 	if (w) {
3275 		if (w->value)
3276 			dev_dbg(&pci->dev,
3277 				"Using SPDIF over AC-Link for %s\n",
3278 				    snd_pci_quirk_name(w));
3279 		else
3280 			dev_dbg(&pci->dev,
3281 				"Using integrated SPDIF DMA for %s\n",
3282 				    snd_pci_quirk_name(w));
3283 		return w->value;
3284 	}
3285 	return 0;
3286 }
3287 
3288 static int snd_intel8x0_probe(struct pci_dev *pci,
3289 			      const struct pci_device_id *pci_id)
3290 {
3291 	struct snd_card *card;
3292 	struct intel8x0 *chip;
3293 	int err;
3294 	struct shortname_table *name;
3295 
3296 	err = snd_card_new(&pci->dev, index, id, THIS_MODULE, 0, &card);
3297 	if (err < 0)
3298 		return err;
3299 
3300 	if (spdif_aclink < 0)
3301 		spdif_aclink = check_default_spdif_aclink(pci);
3302 
3303 	strcpy(card->driver, "ICH");
3304 	if (!spdif_aclink) {
3305 		switch (pci_id->driver_data) {
3306 		case DEVICE_NFORCE:
3307 			strcpy(card->driver, "NFORCE");
3308 			break;
3309 		case DEVICE_INTEL_ICH4:
3310 			strcpy(card->driver, "ICH4");
3311 		}
3312 	}
3313 
3314 	strcpy(card->shortname, "Intel ICH");
3315 	for (name = shortnames; name->id; name++) {
3316 		if (pci->device == name->id) {
3317 			strcpy(card->shortname, name->s);
3318 			break;
3319 		}
3320 	}
3321 
3322 	if (buggy_irq < 0) {
3323 		/* some Nforce[2] and ICH boards have problems with IRQ handling.
3324 		 * Needs to return IRQ_HANDLED for unknown irqs.
3325 		 */
3326 		if (pci_id->driver_data == DEVICE_NFORCE)
3327 			buggy_irq = 1;
3328 		else
3329 			buggy_irq = 0;
3330 	}
3331 
3332 	if ((err = snd_intel8x0_create(card, pci, pci_id->driver_data,
3333 				       &chip)) < 0) {
3334 		snd_card_free(card);
3335 		return err;
3336 	}
3337 	card->private_data = chip;
3338 
3339 	if ((err = snd_intel8x0_mixer(chip, ac97_clock, ac97_quirk)) < 0) {
3340 		snd_card_free(card);
3341 		return err;
3342 	}
3343 	if ((err = snd_intel8x0_pcm(chip)) < 0) {
3344 		snd_card_free(card);
3345 		return err;
3346 	}
3347 
3348 	snd_intel8x0_proc_init(chip);
3349 
3350 	snprintf(card->longname, sizeof(card->longname),
3351 		 "%s with %s at irq %i", card->shortname,
3352 		 snd_ac97_get_short_name(chip->ac97[0]), chip->irq);
3353 
3354 	if (ac97_clock == 0 || ac97_clock == 1) {
3355 		if (ac97_clock == 0) {
3356 			if (intel8x0_in_clock_list(chip) == 0)
3357 				intel8x0_measure_ac97_clock(chip);
3358 		} else {
3359 			intel8x0_measure_ac97_clock(chip);
3360 		}
3361 	}
3362 
3363 	if ((err = snd_card_register(card)) < 0) {
3364 		snd_card_free(card);
3365 		return err;
3366 	}
3367 	pci_set_drvdata(pci, card);
3368 	return 0;
3369 }
3370 
3371 static void snd_intel8x0_remove(struct pci_dev *pci)
3372 {
3373 	snd_card_free(pci_get_drvdata(pci));
3374 }
3375 
3376 static struct pci_driver intel8x0_driver = {
3377 	.name = KBUILD_MODNAME,
3378 	.id_table = snd_intel8x0_ids,
3379 	.probe = snd_intel8x0_probe,
3380 	.remove = snd_intel8x0_remove,
3381 	.driver = {
3382 		.pm = INTEL8X0_PM_OPS,
3383 	},
3384 };
3385 
3386 module_pci_driver(intel8x0_driver);
3387