xref: /openbmc/linux/sound/pci/intel8x0.c (revision ca79522c)
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 DEFINE_PCI_DEVICE_TABLE(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 	snd_printk(KERN_ERR "codec_semaphore: semaphore is not ready [0x%x][0x%x]\n",
551 			igetbyte(chip, ICHREG(ACC_SEMA)), igetdword(chip, ICHREG(GLOB_STA)));
552 	iagetword(chip, 0);	/* clear semaphore flag */
553 	/* I don't care about the semaphore */
554 	return -EBUSY;
555 }
556 
557 static void snd_intel8x0_codec_write(struct snd_ac97 *ac97,
558 				     unsigned short reg,
559 				     unsigned short val)
560 {
561 	struct intel8x0 *chip = ac97->private_data;
562 
563 	if (snd_intel8x0_codec_semaphore(chip, ac97->num) < 0) {
564 		if (! chip->in_ac97_init)
565 			snd_printk(KERN_ERR "codec_write %d: semaphore is not ready for register 0x%x\n", ac97->num, reg);
566 	}
567 	iaputword(chip, reg + ac97->num * 0x80, val);
568 }
569 
570 static unsigned short snd_intel8x0_codec_read(struct snd_ac97 *ac97,
571 					      unsigned short reg)
572 {
573 	struct intel8x0 *chip = ac97->private_data;
574 	unsigned short res;
575 	unsigned int tmp;
576 
577 	if (snd_intel8x0_codec_semaphore(chip, ac97->num) < 0) {
578 		if (! chip->in_ac97_init)
579 			snd_printk(KERN_ERR "codec_read %d: semaphore is not ready for register 0x%x\n", ac97->num, reg);
580 		res = 0xffff;
581 	} else {
582 		res = iagetword(chip, reg + ac97->num * 0x80);
583 		if ((tmp = igetdword(chip, ICHREG(GLOB_STA))) & ICH_RCS) {
584 			/* reset RCS and preserve other R/WC bits */
585 			iputdword(chip, ICHREG(GLOB_STA), tmp &
586 				  ~(chip->codec_ready_bits | ICH_GSCI));
587 			if (! chip->in_ac97_init)
588 				snd_printk(KERN_ERR "codec_read %d: read timeout for register 0x%x\n", ac97->num, reg);
589 			res = 0xffff;
590 		}
591 	}
592 	return res;
593 }
594 
595 static void snd_intel8x0_codec_read_test(struct intel8x0 *chip,
596 					 unsigned int codec)
597 {
598 	unsigned int tmp;
599 
600 	if (snd_intel8x0_codec_semaphore(chip, codec) >= 0) {
601 		iagetword(chip, codec * 0x80);
602 		if ((tmp = igetdword(chip, ICHREG(GLOB_STA))) & ICH_RCS) {
603 			/* reset RCS and preserve other R/WC bits */
604 			iputdword(chip, ICHREG(GLOB_STA), tmp &
605 				  ~(chip->codec_ready_bits | ICH_GSCI));
606 		}
607 	}
608 }
609 
610 /*
611  * access to AC97 for Ali5455
612  */
613 static int snd_intel8x0_ali_codec_ready(struct intel8x0 *chip, int mask)
614 {
615 	int count = 0;
616 	for (count = 0; count < 0x7f; count++) {
617 		int val = igetbyte(chip, ICHREG(ALI_CSPSR));
618 		if (val & mask)
619 			return 0;
620 	}
621 	if (! chip->in_ac97_init)
622 		snd_printd(KERN_WARNING "intel8x0: AC97 codec ready timeout.\n");
623 	return -EBUSY;
624 }
625 
626 static int snd_intel8x0_ali_codec_semaphore(struct intel8x0 *chip)
627 {
628 	int time = 100;
629 	if (chip->buggy_semaphore)
630 		return 0; /* just ignore ... */
631 	while (--time && (igetdword(chip, ICHREG(ALI_CAS)) & ALI_CAS_SEM_BUSY))
632 		udelay(1);
633 	if (! time && ! chip->in_ac97_init)
634 		snd_printk(KERN_WARNING "ali_codec_semaphore timeout\n");
635 	return snd_intel8x0_ali_codec_ready(chip, ALI_CSPSR_CODEC_READY);
636 }
637 
638 static unsigned short snd_intel8x0_ali_codec_read(struct snd_ac97 *ac97, unsigned short reg)
639 {
640 	struct intel8x0 *chip = ac97->private_data;
641 	unsigned short data = 0xffff;
642 
643 	if (snd_intel8x0_ali_codec_semaphore(chip))
644 		goto __err;
645 	reg |= ALI_CPR_ADDR_READ;
646 	if (ac97->num)
647 		reg |= ALI_CPR_ADDR_SECONDARY;
648 	iputword(chip, ICHREG(ALI_CPR_ADDR), reg);
649 	if (snd_intel8x0_ali_codec_ready(chip, ALI_CSPSR_READ_OK))
650 		goto __err;
651 	data = igetword(chip, ICHREG(ALI_SPR));
652  __err:
653 	return data;
654 }
655 
656 static void snd_intel8x0_ali_codec_write(struct snd_ac97 *ac97, unsigned short reg,
657 					 unsigned short val)
658 {
659 	struct intel8x0 *chip = ac97->private_data;
660 
661 	if (snd_intel8x0_ali_codec_semaphore(chip))
662 		return;
663 	iputword(chip, ICHREG(ALI_CPR), val);
664 	if (ac97->num)
665 		reg |= ALI_CPR_ADDR_SECONDARY;
666 	iputword(chip, ICHREG(ALI_CPR_ADDR), reg);
667 	snd_intel8x0_ali_codec_ready(chip, ALI_CSPSR_WRITE_OK);
668 }
669 
670 
671 /*
672  * DMA I/O
673  */
674 static void snd_intel8x0_setup_periods(struct intel8x0 *chip, struct ichdev *ichdev)
675 {
676 	int idx;
677 	u32 *bdbar = ichdev->bdbar;
678 	unsigned long port = ichdev->reg_offset;
679 
680 	iputdword(chip, port + ICH_REG_OFF_BDBAR, ichdev->bdbar_addr);
681 	if (ichdev->size == ichdev->fragsize) {
682 		ichdev->ack_reload = ichdev->ack = 2;
683 		ichdev->fragsize1 = ichdev->fragsize >> 1;
684 		for (idx = 0; idx < (ICH_REG_LVI_MASK + 1) * 2; idx += 4) {
685 			bdbar[idx + 0] = cpu_to_le32(ichdev->physbuf);
686 			bdbar[idx + 1] = cpu_to_le32(0x80000000 | /* interrupt on completion */
687 						     ichdev->fragsize1 >> ichdev->pos_shift);
688 			bdbar[idx + 2] = cpu_to_le32(ichdev->physbuf + (ichdev->size >> 1));
689 			bdbar[idx + 3] = cpu_to_le32(0x80000000 | /* interrupt on completion */
690 						     ichdev->fragsize1 >> ichdev->pos_shift);
691 		}
692 		ichdev->frags = 2;
693 	} else {
694 		ichdev->ack_reload = ichdev->ack = 1;
695 		ichdev->fragsize1 = ichdev->fragsize;
696 		for (idx = 0; idx < (ICH_REG_LVI_MASK + 1) * 2; idx += 2) {
697 			bdbar[idx + 0] = cpu_to_le32(ichdev->physbuf +
698 						     (((idx >> 1) * ichdev->fragsize) %
699 						      ichdev->size));
700 			bdbar[idx + 1] = cpu_to_le32(0x80000000 | /* interrupt on completion */
701 						     ichdev->fragsize >> ichdev->pos_shift);
702 #if 0
703 			printk(KERN_DEBUG "bdbar[%i] = 0x%x [0x%x]\n",
704 			       idx + 0, bdbar[idx + 0], bdbar[idx + 1]);
705 #endif
706 		}
707 		ichdev->frags = ichdev->size / ichdev->fragsize;
708 	}
709 	iputbyte(chip, port + ICH_REG_OFF_LVI, ichdev->lvi = ICH_REG_LVI_MASK);
710 	ichdev->civ = 0;
711 	iputbyte(chip, port + ICH_REG_OFF_CIV, 0);
712 	ichdev->lvi_frag = ICH_REG_LVI_MASK % ichdev->frags;
713 	ichdev->position = 0;
714 #if 0
715 	printk(KERN_DEBUG "lvi_frag = %i, frags = %i, period_size = 0x%x, "
716 	       "period_size1 = 0x%x\n",
717 	       ichdev->lvi_frag, ichdev->frags, ichdev->fragsize,
718 	       ichdev->fragsize1);
719 #endif
720 	/* clear interrupts */
721 	iputbyte(chip, port + ichdev->roff_sr, ICH_FIFOE | ICH_BCIS | ICH_LVBCI);
722 }
723 
724 #ifdef __i386__
725 /*
726  * Intel 82443MX running a 100MHz processor system bus has a hardware bug,
727  * which aborts PCI busmaster for audio transfer.  A workaround is to set
728  * the pages as non-cached.  For details, see the errata in
729  *	http://download.intel.com/design/chipsets/specupdt/24505108.pdf
730  */
731 static void fill_nocache(void *buf, int size, int nocache)
732 {
733 	size = (size + PAGE_SIZE - 1) >> PAGE_SHIFT;
734 	if (nocache)
735 		set_pages_uc(virt_to_page(buf), size);
736 	else
737 		set_pages_wb(virt_to_page(buf), size);
738 }
739 #else
740 #define fill_nocache(buf, size, nocache) do { ; } while (0)
741 #endif
742 
743 /*
744  *  Interrupt handler
745  */
746 
747 static inline void snd_intel8x0_update(struct intel8x0 *chip, struct ichdev *ichdev)
748 {
749 	unsigned long port = ichdev->reg_offset;
750 	unsigned long flags;
751 	int status, civ, i, step;
752 	int ack = 0;
753 
754 	spin_lock_irqsave(&chip->reg_lock, flags);
755 	status = igetbyte(chip, port + ichdev->roff_sr);
756 	civ = igetbyte(chip, port + ICH_REG_OFF_CIV);
757 	if (!(status & ICH_BCIS)) {
758 		step = 0;
759 	} else if (civ == ichdev->civ) {
760 		// snd_printd("civ same %d\n", civ);
761 		step = 1;
762 		ichdev->civ++;
763 		ichdev->civ &= ICH_REG_LVI_MASK;
764 	} else {
765 		step = civ - ichdev->civ;
766 		if (step < 0)
767 			step += ICH_REG_LVI_MASK + 1;
768 		// if (step != 1)
769 		//	snd_printd("step = %d, %d -> %d\n", step, ichdev->civ, civ);
770 		ichdev->civ = civ;
771 	}
772 
773 	ichdev->position += step * ichdev->fragsize1;
774 	if (! chip->in_measurement)
775 		ichdev->position %= ichdev->size;
776 	ichdev->lvi += step;
777 	ichdev->lvi &= ICH_REG_LVI_MASK;
778 	iputbyte(chip, port + ICH_REG_OFF_LVI, ichdev->lvi);
779 	for (i = 0; i < step; i++) {
780 		ichdev->lvi_frag++;
781 		ichdev->lvi_frag %= ichdev->frags;
782 		ichdev->bdbar[ichdev->lvi * 2] = cpu_to_le32(ichdev->physbuf + ichdev->lvi_frag * ichdev->fragsize1);
783 #if 0
784 	printk(KERN_DEBUG "new: bdbar[%i] = 0x%x [0x%x], prefetch = %i, "
785 	       "all = 0x%x, 0x%x\n",
786 	       ichdev->lvi * 2, ichdev->bdbar[ichdev->lvi * 2],
787 	       ichdev->bdbar[ichdev->lvi * 2 + 1], inb(ICH_REG_OFF_PIV + port),
788 	       inl(port + 4), inb(port + ICH_REG_OFF_CR));
789 #endif
790 		if (--ichdev->ack == 0) {
791 			ichdev->ack = ichdev->ack_reload;
792 			ack = 1;
793 		}
794 	}
795 	spin_unlock_irqrestore(&chip->reg_lock, flags);
796 	if (ack && ichdev->substream) {
797 		snd_pcm_period_elapsed(ichdev->substream);
798 	}
799 	iputbyte(chip, port + ichdev->roff_sr,
800 		 status & (ICH_FIFOE | ICH_BCIS | ICH_LVBCI));
801 }
802 
803 static irqreturn_t snd_intel8x0_interrupt(int irq, void *dev_id)
804 {
805 	struct intel8x0 *chip = dev_id;
806 	struct ichdev *ichdev;
807 	unsigned int status;
808 	unsigned int i;
809 
810 	status = igetdword(chip, chip->int_sta_reg);
811 	if (status == 0xffffffff)	/* we are not yet resumed */
812 		return IRQ_NONE;
813 
814 	if ((status & chip->int_sta_mask) == 0) {
815 		if (status) {
816 			/* ack */
817 			iputdword(chip, chip->int_sta_reg, status);
818 			if (! chip->buggy_irq)
819 				status = 0;
820 		}
821 		return IRQ_RETVAL(status);
822 	}
823 
824 	for (i = 0; i < chip->bdbars_count; i++) {
825 		ichdev = &chip->ichd[i];
826 		if (status & ichdev->int_sta_mask)
827 			snd_intel8x0_update(chip, ichdev);
828 	}
829 
830 	/* ack them */
831 	iputdword(chip, chip->int_sta_reg, status & chip->int_sta_mask);
832 
833 	return IRQ_HANDLED;
834 }
835 
836 /*
837  *  PCM part
838  */
839 
840 static int snd_intel8x0_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
841 {
842 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
843 	struct ichdev *ichdev = get_ichdev(substream);
844 	unsigned char val = 0;
845 	unsigned long port = ichdev->reg_offset;
846 
847 	switch (cmd) {
848 	case SNDRV_PCM_TRIGGER_RESUME:
849 		ichdev->suspended = 0;
850 		/* fallthru */
851 	case SNDRV_PCM_TRIGGER_START:
852 	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
853 		val = ICH_IOCE | ICH_STARTBM;
854 		ichdev->last_pos = ichdev->position;
855 		break;
856 	case SNDRV_PCM_TRIGGER_SUSPEND:
857 		ichdev->suspended = 1;
858 		/* fallthru */
859 	case SNDRV_PCM_TRIGGER_STOP:
860 		val = 0;
861 		break;
862 	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
863 		val = ICH_IOCE;
864 		break;
865 	default:
866 		return -EINVAL;
867 	}
868 	iputbyte(chip, port + ICH_REG_OFF_CR, val);
869 	if (cmd == SNDRV_PCM_TRIGGER_STOP) {
870 		/* wait until DMA stopped */
871 		while (!(igetbyte(chip, port + ichdev->roff_sr) & ICH_DCH)) ;
872 		/* reset whole DMA things */
873 		iputbyte(chip, port + ICH_REG_OFF_CR, ICH_RESETREGS);
874 	}
875 	return 0;
876 }
877 
878 static int snd_intel8x0_ali_trigger(struct snd_pcm_substream *substream, int cmd)
879 {
880 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
881 	struct ichdev *ichdev = get_ichdev(substream);
882 	unsigned long port = ichdev->reg_offset;
883 	static int fiforeg[] = {
884 		ICHREG(ALI_FIFOCR1), ICHREG(ALI_FIFOCR2), ICHREG(ALI_FIFOCR3)
885 	};
886 	unsigned int val, fifo;
887 
888 	val = igetdword(chip, ICHREG(ALI_DMACR));
889 	switch (cmd) {
890 	case SNDRV_PCM_TRIGGER_RESUME:
891 		ichdev->suspended = 0;
892 		/* fallthru */
893 	case SNDRV_PCM_TRIGGER_START:
894 	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
895 		if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
896 			/* clear FIFO for synchronization of channels */
897 			fifo = igetdword(chip, fiforeg[ichdev->ali_slot / 4]);
898 			fifo &= ~(0xff << (ichdev->ali_slot % 4));
899 			fifo |= 0x83 << (ichdev->ali_slot % 4);
900 			iputdword(chip, fiforeg[ichdev->ali_slot / 4], fifo);
901 		}
902 		iputbyte(chip, port + ICH_REG_OFF_CR, ICH_IOCE);
903 		val &= ~(1 << (ichdev->ali_slot + 16)); /* clear PAUSE flag */
904 		/* start DMA */
905 		iputdword(chip, ICHREG(ALI_DMACR), val | (1 << ichdev->ali_slot));
906 		break;
907 	case SNDRV_PCM_TRIGGER_SUSPEND:
908 		ichdev->suspended = 1;
909 		/* fallthru */
910 	case SNDRV_PCM_TRIGGER_STOP:
911 	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
912 		/* pause */
913 		iputdword(chip, ICHREG(ALI_DMACR), val | (1 << (ichdev->ali_slot + 16)));
914 		iputbyte(chip, port + ICH_REG_OFF_CR, 0);
915 		while (igetbyte(chip, port + ICH_REG_OFF_CR))
916 			;
917 		if (cmd == SNDRV_PCM_TRIGGER_PAUSE_PUSH)
918 			break;
919 		/* reset whole DMA things */
920 		iputbyte(chip, port + ICH_REG_OFF_CR, ICH_RESETREGS);
921 		/* clear interrupts */
922 		iputbyte(chip, port + ICH_REG_OFF_SR,
923 			 igetbyte(chip, port + ICH_REG_OFF_SR) | 0x1e);
924 		iputdword(chip, ICHREG(ALI_INTERRUPTSR),
925 			  igetdword(chip, ICHREG(ALI_INTERRUPTSR)) & ichdev->int_sta_mask);
926 		break;
927 	default:
928 		return -EINVAL;
929 	}
930 	return 0;
931 }
932 
933 static int snd_intel8x0_hw_params(struct snd_pcm_substream *substream,
934 				  struct snd_pcm_hw_params *hw_params)
935 {
936 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
937 	struct ichdev *ichdev = get_ichdev(substream);
938 	struct snd_pcm_runtime *runtime = substream->runtime;
939 	int dbl = params_rate(hw_params) > 48000;
940 	int err;
941 
942 	if (chip->fix_nocache && ichdev->page_attr_changed) {
943 		fill_nocache(runtime->dma_area, runtime->dma_bytes, 0); /* clear */
944 		ichdev->page_attr_changed = 0;
945 	}
946 	err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
947 	if (err < 0)
948 		return err;
949 	if (chip->fix_nocache) {
950 		if (runtime->dma_area && ! ichdev->page_attr_changed) {
951 			fill_nocache(runtime->dma_area, runtime->dma_bytes, 1);
952 			ichdev->page_attr_changed = 1;
953 		}
954 	}
955 	if (ichdev->pcm_open_flag) {
956 		snd_ac97_pcm_close(ichdev->pcm);
957 		ichdev->pcm_open_flag = 0;
958 	}
959 	err = snd_ac97_pcm_open(ichdev->pcm, params_rate(hw_params),
960 				params_channels(hw_params),
961 				ichdev->pcm->r[dbl].slots);
962 	if (err >= 0) {
963 		ichdev->pcm_open_flag = 1;
964 		/* Force SPDIF setting */
965 		if (ichdev->ichd == ICHD_PCMOUT && chip->spdif_idx < 0)
966 			snd_ac97_set_rate(ichdev->pcm->r[0].codec[0], AC97_SPDIF,
967 					  params_rate(hw_params));
968 	}
969 	return err;
970 }
971 
972 static int snd_intel8x0_hw_free(struct snd_pcm_substream *substream)
973 {
974 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
975 	struct ichdev *ichdev = get_ichdev(substream);
976 
977 	if (ichdev->pcm_open_flag) {
978 		snd_ac97_pcm_close(ichdev->pcm);
979 		ichdev->pcm_open_flag = 0;
980 	}
981 	if (chip->fix_nocache && ichdev->page_attr_changed) {
982 		fill_nocache(substream->runtime->dma_area, substream->runtime->dma_bytes, 0);
983 		ichdev->page_attr_changed = 0;
984 	}
985 	return snd_pcm_lib_free_pages(substream);
986 }
987 
988 static void snd_intel8x0_setup_pcm_out(struct intel8x0 *chip,
989 				       struct snd_pcm_runtime *runtime)
990 {
991 	unsigned int cnt;
992 	int dbl = runtime->rate > 48000;
993 
994 	spin_lock_irq(&chip->reg_lock);
995 	switch (chip->device_type) {
996 	case DEVICE_ALI:
997 		cnt = igetdword(chip, ICHREG(ALI_SCR));
998 		cnt &= ~ICH_ALI_SC_PCM_246_MASK;
999 		if (runtime->channels == 4 || dbl)
1000 			cnt |= ICH_ALI_SC_PCM_4;
1001 		else if (runtime->channels == 6)
1002 			cnt |= ICH_ALI_SC_PCM_6;
1003 		iputdword(chip, ICHREG(ALI_SCR), cnt);
1004 		break;
1005 	case DEVICE_SIS:
1006 		cnt = igetdword(chip, ICHREG(GLOB_CNT));
1007 		cnt &= ~ICH_SIS_PCM_246_MASK;
1008 		if (runtime->channels == 4 || dbl)
1009 			cnt |= ICH_SIS_PCM_4;
1010 		else if (runtime->channels == 6)
1011 			cnt |= ICH_SIS_PCM_6;
1012 		iputdword(chip, ICHREG(GLOB_CNT), cnt);
1013 		break;
1014 	default:
1015 		cnt = igetdword(chip, ICHREG(GLOB_CNT));
1016 		cnt &= ~(ICH_PCM_246_MASK | ICH_PCM_20BIT);
1017 		if (runtime->channels == 4 || dbl)
1018 			cnt |= ICH_PCM_4;
1019 		else if (runtime->channels == 6)
1020 			cnt |= ICH_PCM_6;
1021 		else if (runtime->channels == 8)
1022 			cnt |= ICH_PCM_8;
1023 		if (chip->device_type == DEVICE_NFORCE) {
1024 			/* reset to 2ch once to keep the 6 channel data in alignment,
1025 			 * to start from Front Left always
1026 			 */
1027 			if (cnt & ICH_PCM_246_MASK) {
1028 				iputdword(chip, ICHREG(GLOB_CNT), cnt & ~ICH_PCM_246_MASK);
1029 				spin_unlock_irq(&chip->reg_lock);
1030 				msleep(50); /* grrr... */
1031 				spin_lock_irq(&chip->reg_lock);
1032 			}
1033 		} else if (chip->device_type == DEVICE_INTEL_ICH4) {
1034 			if (runtime->sample_bits > 16)
1035 				cnt |= ICH_PCM_20BIT;
1036 		}
1037 		iputdword(chip, ICHREG(GLOB_CNT), cnt);
1038 		break;
1039 	}
1040 	spin_unlock_irq(&chip->reg_lock);
1041 }
1042 
1043 static int snd_intel8x0_pcm_prepare(struct snd_pcm_substream *substream)
1044 {
1045 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1046 	struct snd_pcm_runtime *runtime = substream->runtime;
1047 	struct ichdev *ichdev = get_ichdev(substream);
1048 
1049 	ichdev->physbuf = runtime->dma_addr;
1050 	ichdev->size = snd_pcm_lib_buffer_bytes(substream);
1051 	ichdev->fragsize = snd_pcm_lib_period_bytes(substream);
1052 	if (ichdev->ichd == ICHD_PCMOUT) {
1053 		snd_intel8x0_setup_pcm_out(chip, runtime);
1054 		if (chip->device_type == DEVICE_INTEL_ICH4)
1055 			ichdev->pos_shift = (runtime->sample_bits > 16) ? 2 : 1;
1056 	}
1057 	snd_intel8x0_setup_periods(chip, ichdev);
1058 	return 0;
1059 }
1060 
1061 static snd_pcm_uframes_t snd_intel8x0_pcm_pointer(struct snd_pcm_substream *substream)
1062 {
1063 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1064 	struct ichdev *ichdev = get_ichdev(substream);
1065 	size_t ptr1, ptr;
1066 	int civ, timeout = 10;
1067 	unsigned int position;
1068 
1069 	spin_lock(&chip->reg_lock);
1070 	do {
1071 		civ = igetbyte(chip, ichdev->reg_offset + ICH_REG_OFF_CIV);
1072 		ptr1 = igetword(chip, ichdev->reg_offset + ichdev->roff_picb);
1073 		position = ichdev->position;
1074 		if (ptr1 == 0) {
1075 			udelay(10);
1076 			continue;
1077 		}
1078 		if (civ != igetbyte(chip, ichdev->reg_offset + ICH_REG_OFF_CIV))
1079 			continue;
1080 
1081 		/* IO read operation is very expensive inside virtual machine
1082 		 * as it is emulated. The probability that subsequent PICB read
1083 		 * will return different result is high enough to loop till
1084 		 * timeout here.
1085 		 * Same CIV is strict enough condition to be sure that PICB
1086 		 * is valid inside VM on emulated card. */
1087 		if (chip->inside_vm)
1088 			break;
1089 		if (ptr1 == igetword(chip, ichdev->reg_offset + ichdev->roff_picb))
1090 			break;
1091 	} while (timeout--);
1092 	ptr = ichdev->last_pos;
1093 	if (ptr1 != 0) {
1094 		ptr1 <<= ichdev->pos_shift;
1095 		ptr = ichdev->fragsize1 - ptr1;
1096 		ptr += position;
1097 		if (ptr < ichdev->last_pos) {
1098 			unsigned int pos_base, last_base;
1099 			pos_base = position / ichdev->fragsize1;
1100 			last_base = ichdev->last_pos / ichdev->fragsize1;
1101 			/* another sanity check; ptr1 can go back to full
1102 			 * before the base position is updated
1103 			 */
1104 			if (pos_base == last_base)
1105 				ptr = ichdev->last_pos;
1106 		}
1107 	}
1108 	ichdev->last_pos = ptr;
1109 	spin_unlock(&chip->reg_lock);
1110 	if (ptr >= ichdev->size)
1111 		return 0;
1112 	return bytes_to_frames(substream->runtime, ptr);
1113 }
1114 
1115 static struct snd_pcm_hardware snd_intel8x0_stream =
1116 {
1117 	.info =			(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1118 				 SNDRV_PCM_INFO_BLOCK_TRANSFER |
1119 				 SNDRV_PCM_INFO_MMAP_VALID |
1120 				 SNDRV_PCM_INFO_PAUSE |
1121 				 SNDRV_PCM_INFO_RESUME),
1122 	.formats =		SNDRV_PCM_FMTBIT_S16_LE,
1123 	.rates =		SNDRV_PCM_RATE_48000,
1124 	.rate_min =		48000,
1125 	.rate_max =		48000,
1126 	.channels_min =		2,
1127 	.channels_max =		2,
1128 	.buffer_bytes_max =	128 * 1024,
1129 	.period_bytes_min =	32,
1130 	.period_bytes_max =	128 * 1024,
1131 	.periods_min =		1,
1132 	.periods_max =		1024,
1133 	.fifo_size =		0,
1134 };
1135 
1136 static unsigned int channels4[] = {
1137 	2, 4,
1138 };
1139 
1140 static struct snd_pcm_hw_constraint_list hw_constraints_channels4 = {
1141 	.count = ARRAY_SIZE(channels4),
1142 	.list = channels4,
1143 	.mask = 0,
1144 };
1145 
1146 static unsigned int channels6[] = {
1147 	2, 4, 6,
1148 };
1149 
1150 static struct snd_pcm_hw_constraint_list hw_constraints_channels6 = {
1151 	.count = ARRAY_SIZE(channels6),
1152 	.list = channels6,
1153 	.mask = 0,
1154 };
1155 
1156 static unsigned int channels8[] = {
1157 	2, 4, 6, 8,
1158 };
1159 
1160 static struct snd_pcm_hw_constraint_list hw_constraints_channels8 = {
1161 	.count = ARRAY_SIZE(channels8),
1162 	.list = channels8,
1163 	.mask = 0,
1164 };
1165 
1166 static int snd_intel8x0_pcm_open(struct snd_pcm_substream *substream, struct ichdev *ichdev)
1167 {
1168 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1169 	struct snd_pcm_runtime *runtime = substream->runtime;
1170 	int err;
1171 
1172 	ichdev->substream = substream;
1173 	runtime->hw = snd_intel8x0_stream;
1174 	runtime->hw.rates = ichdev->pcm->rates;
1175 	snd_pcm_limit_hw_rates(runtime);
1176 	if (chip->device_type == DEVICE_SIS) {
1177 		runtime->hw.buffer_bytes_max = 64*1024;
1178 		runtime->hw.period_bytes_max = 64*1024;
1179 	}
1180 	if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
1181 		return err;
1182 	runtime->private_data = ichdev;
1183 	return 0;
1184 }
1185 
1186 static int snd_intel8x0_playback_open(struct snd_pcm_substream *substream)
1187 {
1188 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1189 	struct snd_pcm_runtime *runtime = substream->runtime;
1190 	int err;
1191 
1192 	err = snd_intel8x0_pcm_open(substream, &chip->ichd[ICHD_PCMOUT]);
1193 	if (err < 0)
1194 		return err;
1195 
1196 	if (chip->multi8) {
1197 		runtime->hw.channels_max = 8;
1198 		snd_pcm_hw_constraint_list(runtime, 0,
1199 						SNDRV_PCM_HW_PARAM_CHANNELS,
1200 						&hw_constraints_channels8);
1201 	} else if (chip->multi6) {
1202 		runtime->hw.channels_max = 6;
1203 		snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
1204 					   &hw_constraints_channels6);
1205 	} else if (chip->multi4) {
1206 		runtime->hw.channels_max = 4;
1207 		snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
1208 					   &hw_constraints_channels4);
1209 	}
1210 	if (chip->dra) {
1211 		snd_ac97_pcm_double_rate_rules(runtime);
1212 	}
1213 	if (chip->smp20bit) {
1214 		runtime->hw.formats |= SNDRV_PCM_FMTBIT_S32_LE;
1215 		snd_pcm_hw_constraint_msbits(runtime, 0, 32, 20);
1216 	}
1217 	return 0;
1218 }
1219 
1220 static int snd_intel8x0_playback_close(struct snd_pcm_substream *substream)
1221 {
1222 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1223 
1224 	chip->ichd[ICHD_PCMOUT].substream = NULL;
1225 	return 0;
1226 }
1227 
1228 static int snd_intel8x0_capture_open(struct snd_pcm_substream *substream)
1229 {
1230 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1231 
1232 	return snd_intel8x0_pcm_open(substream, &chip->ichd[ICHD_PCMIN]);
1233 }
1234 
1235 static int snd_intel8x0_capture_close(struct snd_pcm_substream *substream)
1236 {
1237 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1238 
1239 	chip->ichd[ICHD_PCMIN].substream = NULL;
1240 	return 0;
1241 }
1242 
1243 static int snd_intel8x0_mic_open(struct snd_pcm_substream *substream)
1244 {
1245 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1246 
1247 	return snd_intel8x0_pcm_open(substream, &chip->ichd[ICHD_MIC]);
1248 }
1249 
1250 static int snd_intel8x0_mic_close(struct snd_pcm_substream *substream)
1251 {
1252 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1253 
1254 	chip->ichd[ICHD_MIC].substream = NULL;
1255 	return 0;
1256 }
1257 
1258 static int snd_intel8x0_mic2_open(struct snd_pcm_substream *substream)
1259 {
1260 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1261 
1262 	return snd_intel8x0_pcm_open(substream, &chip->ichd[ICHD_MIC2]);
1263 }
1264 
1265 static int snd_intel8x0_mic2_close(struct snd_pcm_substream *substream)
1266 {
1267 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1268 
1269 	chip->ichd[ICHD_MIC2].substream = NULL;
1270 	return 0;
1271 }
1272 
1273 static int snd_intel8x0_capture2_open(struct snd_pcm_substream *substream)
1274 {
1275 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1276 
1277 	return snd_intel8x0_pcm_open(substream, &chip->ichd[ICHD_PCM2IN]);
1278 }
1279 
1280 static int snd_intel8x0_capture2_close(struct snd_pcm_substream *substream)
1281 {
1282 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1283 
1284 	chip->ichd[ICHD_PCM2IN].substream = NULL;
1285 	return 0;
1286 }
1287 
1288 static int snd_intel8x0_spdif_open(struct snd_pcm_substream *substream)
1289 {
1290 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1291 	int idx = chip->device_type == DEVICE_NFORCE ? NVD_SPBAR : ICHD_SPBAR;
1292 
1293 	return snd_intel8x0_pcm_open(substream, &chip->ichd[idx]);
1294 }
1295 
1296 static int snd_intel8x0_spdif_close(struct snd_pcm_substream *substream)
1297 {
1298 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1299 	int idx = chip->device_type == DEVICE_NFORCE ? NVD_SPBAR : ICHD_SPBAR;
1300 
1301 	chip->ichd[idx].substream = NULL;
1302 	return 0;
1303 }
1304 
1305 static int snd_intel8x0_ali_ac97spdifout_open(struct snd_pcm_substream *substream)
1306 {
1307 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1308 	unsigned int val;
1309 
1310 	spin_lock_irq(&chip->reg_lock);
1311 	val = igetdword(chip, ICHREG(ALI_INTERFACECR));
1312 	val |= ICH_ALI_IF_AC97SP;
1313 	iputdword(chip, ICHREG(ALI_INTERFACECR), val);
1314 	/* also needs to set ALI_SC_CODEC_SPDF correctly */
1315 	spin_unlock_irq(&chip->reg_lock);
1316 
1317 	return snd_intel8x0_pcm_open(substream, &chip->ichd[ALID_AC97SPDIFOUT]);
1318 }
1319 
1320 static int snd_intel8x0_ali_ac97spdifout_close(struct snd_pcm_substream *substream)
1321 {
1322 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1323 	unsigned int val;
1324 
1325 	chip->ichd[ALID_AC97SPDIFOUT].substream = NULL;
1326 	spin_lock_irq(&chip->reg_lock);
1327 	val = igetdword(chip, ICHREG(ALI_INTERFACECR));
1328 	val &= ~ICH_ALI_IF_AC97SP;
1329 	iputdword(chip, ICHREG(ALI_INTERFACECR), val);
1330 	spin_unlock_irq(&chip->reg_lock);
1331 
1332 	return 0;
1333 }
1334 
1335 #if 0 // NYI
1336 static int snd_intel8x0_ali_spdifin_open(struct snd_pcm_substream *substream)
1337 {
1338 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1339 
1340 	return snd_intel8x0_pcm_open(substream, &chip->ichd[ALID_SPDIFIN]);
1341 }
1342 
1343 static int snd_intel8x0_ali_spdifin_close(struct snd_pcm_substream *substream)
1344 {
1345 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1346 
1347 	chip->ichd[ALID_SPDIFIN].substream = NULL;
1348 	return 0;
1349 }
1350 
1351 static int snd_intel8x0_ali_spdifout_open(struct snd_pcm_substream *substream)
1352 {
1353 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1354 
1355 	return snd_intel8x0_pcm_open(substream, &chip->ichd[ALID_SPDIFOUT]);
1356 }
1357 
1358 static int snd_intel8x0_ali_spdifout_close(struct snd_pcm_substream *substream)
1359 {
1360 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1361 
1362 	chip->ichd[ALID_SPDIFOUT].substream = NULL;
1363 	return 0;
1364 }
1365 #endif
1366 
1367 static struct snd_pcm_ops snd_intel8x0_playback_ops = {
1368 	.open =		snd_intel8x0_playback_open,
1369 	.close =	snd_intel8x0_playback_close,
1370 	.ioctl =	snd_pcm_lib_ioctl,
1371 	.hw_params =	snd_intel8x0_hw_params,
1372 	.hw_free =	snd_intel8x0_hw_free,
1373 	.prepare =	snd_intel8x0_pcm_prepare,
1374 	.trigger =	snd_intel8x0_pcm_trigger,
1375 	.pointer =	snd_intel8x0_pcm_pointer,
1376 };
1377 
1378 static struct snd_pcm_ops snd_intel8x0_capture_ops = {
1379 	.open =		snd_intel8x0_capture_open,
1380 	.close =	snd_intel8x0_capture_close,
1381 	.ioctl =	snd_pcm_lib_ioctl,
1382 	.hw_params =	snd_intel8x0_hw_params,
1383 	.hw_free =	snd_intel8x0_hw_free,
1384 	.prepare =	snd_intel8x0_pcm_prepare,
1385 	.trigger =	snd_intel8x0_pcm_trigger,
1386 	.pointer =	snd_intel8x0_pcm_pointer,
1387 };
1388 
1389 static struct snd_pcm_ops snd_intel8x0_capture_mic_ops = {
1390 	.open =		snd_intel8x0_mic_open,
1391 	.close =	snd_intel8x0_mic_close,
1392 	.ioctl =	snd_pcm_lib_ioctl,
1393 	.hw_params =	snd_intel8x0_hw_params,
1394 	.hw_free =	snd_intel8x0_hw_free,
1395 	.prepare =	snd_intel8x0_pcm_prepare,
1396 	.trigger =	snd_intel8x0_pcm_trigger,
1397 	.pointer =	snd_intel8x0_pcm_pointer,
1398 };
1399 
1400 static struct snd_pcm_ops snd_intel8x0_capture_mic2_ops = {
1401 	.open =		snd_intel8x0_mic2_open,
1402 	.close =	snd_intel8x0_mic2_close,
1403 	.ioctl =	snd_pcm_lib_ioctl,
1404 	.hw_params =	snd_intel8x0_hw_params,
1405 	.hw_free =	snd_intel8x0_hw_free,
1406 	.prepare =	snd_intel8x0_pcm_prepare,
1407 	.trigger =	snd_intel8x0_pcm_trigger,
1408 	.pointer =	snd_intel8x0_pcm_pointer,
1409 };
1410 
1411 static struct snd_pcm_ops snd_intel8x0_capture2_ops = {
1412 	.open =		snd_intel8x0_capture2_open,
1413 	.close =	snd_intel8x0_capture2_close,
1414 	.ioctl =	snd_pcm_lib_ioctl,
1415 	.hw_params =	snd_intel8x0_hw_params,
1416 	.hw_free =	snd_intel8x0_hw_free,
1417 	.prepare =	snd_intel8x0_pcm_prepare,
1418 	.trigger =	snd_intel8x0_pcm_trigger,
1419 	.pointer =	snd_intel8x0_pcm_pointer,
1420 };
1421 
1422 static struct snd_pcm_ops snd_intel8x0_spdif_ops = {
1423 	.open =		snd_intel8x0_spdif_open,
1424 	.close =	snd_intel8x0_spdif_close,
1425 	.ioctl =	snd_pcm_lib_ioctl,
1426 	.hw_params =	snd_intel8x0_hw_params,
1427 	.hw_free =	snd_intel8x0_hw_free,
1428 	.prepare =	snd_intel8x0_pcm_prepare,
1429 	.trigger =	snd_intel8x0_pcm_trigger,
1430 	.pointer =	snd_intel8x0_pcm_pointer,
1431 };
1432 
1433 static struct snd_pcm_ops snd_intel8x0_ali_playback_ops = {
1434 	.open =		snd_intel8x0_playback_open,
1435 	.close =	snd_intel8x0_playback_close,
1436 	.ioctl =	snd_pcm_lib_ioctl,
1437 	.hw_params =	snd_intel8x0_hw_params,
1438 	.hw_free =	snd_intel8x0_hw_free,
1439 	.prepare =	snd_intel8x0_pcm_prepare,
1440 	.trigger =	snd_intel8x0_ali_trigger,
1441 	.pointer =	snd_intel8x0_pcm_pointer,
1442 };
1443 
1444 static struct snd_pcm_ops snd_intel8x0_ali_capture_ops = {
1445 	.open =		snd_intel8x0_capture_open,
1446 	.close =	snd_intel8x0_capture_close,
1447 	.ioctl =	snd_pcm_lib_ioctl,
1448 	.hw_params =	snd_intel8x0_hw_params,
1449 	.hw_free =	snd_intel8x0_hw_free,
1450 	.prepare =	snd_intel8x0_pcm_prepare,
1451 	.trigger =	snd_intel8x0_ali_trigger,
1452 	.pointer =	snd_intel8x0_pcm_pointer,
1453 };
1454 
1455 static struct snd_pcm_ops snd_intel8x0_ali_capture_mic_ops = {
1456 	.open =		snd_intel8x0_mic_open,
1457 	.close =	snd_intel8x0_mic_close,
1458 	.ioctl =	snd_pcm_lib_ioctl,
1459 	.hw_params =	snd_intel8x0_hw_params,
1460 	.hw_free =	snd_intel8x0_hw_free,
1461 	.prepare =	snd_intel8x0_pcm_prepare,
1462 	.trigger =	snd_intel8x0_ali_trigger,
1463 	.pointer =	snd_intel8x0_pcm_pointer,
1464 };
1465 
1466 static struct snd_pcm_ops snd_intel8x0_ali_ac97spdifout_ops = {
1467 	.open =		snd_intel8x0_ali_ac97spdifout_open,
1468 	.close =	snd_intel8x0_ali_ac97spdifout_close,
1469 	.ioctl =	snd_pcm_lib_ioctl,
1470 	.hw_params =	snd_intel8x0_hw_params,
1471 	.hw_free =	snd_intel8x0_hw_free,
1472 	.prepare =	snd_intel8x0_pcm_prepare,
1473 	.trigger =	snd_intel8x0_ali_trigger,
1474 	.pointer =	snd_intel8x0_pcm_pointer,
1475 };
1476 
1477 #if 0 // NYI
1478 static struct snd_pcm_ops snd_intel8x0_ali_spdifin_ops = {
1479 	.open =		snd_intel8x0_ali_spdifin_open,
1480 	.close =	snd_intel8x0_ali_spdifin_close,
1481 	.ioctl =	snd_pcm_lib_ioctl,
1482 	.hw_params =	snd_intel8x0_hw_params,
1483 	.hw_free =	snd_intel8x0_hw_free,
1484 	.prepare =	snd_intel8x0_pcm_prepare,
1485 	.trigger =	snd_intel8x0_pcm_trigger,
1486 	.pointer =	snd_intel8x0_pcm_pointer,
1487 };
1488 
1489 static struct snd_pcm_ops snd_intel8x0_ali_spdifout_ops = {
1490 	.open =		snd_intel8x0_ali_spdifout_open,
1491 	.close =	snd_intel8x0_ali_spdifout_close,
1492 	.ioctl =	snd_pcm_lib_ioctl,
1493 	.hw_params =	snd_intel8x0_hw_params,
1494 	.hw_free =	snd_intel8x0_hw_free,
1495 	.prepare =	snd_intel8x0_pcm_prepare,
1496 	.trigger =	snd_intel8x0_pcm_trigger,
1497 	.pointer =	snd_intel8x0_pcm_pointer,
1498 };
1499 #endif // NYI
1500 
1501 struct ich_pcm_table {
1502 	char *suffix;
1503 	struct snd_pcm_ops *playback_ops;
1504 	struct snd_pcm_ops *capture_ops;
1505 	size_t prealloc_size;
1506 	size_t prealloc_max_size;
1507 	int ac97_idx;
1508 };
1509 
1510 static int snd_intel8x0_pcm1(struct intel8x0 *chip, int device,
1511 			     struct ich_pcm_table *rec)
1512 {
1513 	struct snd_pcm *pcm;
1514 	int err;
1515 	char name[32];
1516 
1517 	if (rec->suffix)
1518 		sprintf(name, "Intel ICH - %s", rec->suffix);
1519 	else
1520 		strcpy(name, "Intel ICH");
1521 	err = snd_pcm_new(chip->card, name, device,
1522 			  rec->playback_ops ? 1 : 0,
1523 			  rec->capture_ops ? 1 : 0, &pcm);
1524 	if (err < 0)
1525 		return err;
1526 
1527 	if (rec->playback_ops)
1528 		snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, rec->playback_ops);
1529 	if (rec->capture_ops)
1530 		snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, rec->capture_ops);
1531 
1532 	pcm->private_data = chip;
1533 	pcm->info_flags = 0;
1534 	if (rec->suffix)
1535 		sprintf(pcm->name, "%s - %s", chip->card->shortname, rec->suffix);
1536 	else
1537 		strcpy(pcm->name, chip->card->shortname);
1538 	chip->pcm[device] = pcm;
1539 
1540 	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
1541 					      snd_dma_pci_data(chip->pci),
1542 					      rec->prealloc_size, rec->prealloc_max_size);
1543 
1544 	if (rec->ac97_idx == ICHD_PCMOUT && rec->playback_ops) {
1545 		struct snd_pcm_chmap *chmap;
1546 		int chs = 2;
1547 		if (rec->ac97_idx == ICHD_PCMOUT) {
1548 			if (chip->multi8)
1549 				chs = 8;
1550 			else if (chip->multi6)
1551 				chs = 6;
1552 			else if (chip->multi4)
1553 				chs = 4;
1554 		}
1555 		err = snd_pcm_add_chmap_ctls(pcm, SNDRV_PCM_STREAM_PLAYBACK,
1556 					     snd_pcm_alt_chmaps, chs, 0,
1557 					     &chmap);
1558 		if (err < 0)
1559 			return err;
1560 		chmap->channel_mask = SND_PCM_CHMAP_MASK_2468;
1561 		chip->ac97[0]->chmaps[SNDRV_PCM_STREAM_PLAYBACK] = chmap;
1562 	}
1563 
1564 	return 0;
1565 }
1566 
1567 static struct ich_pcm_table intel_pcms[] = {
1568 	{
1569 		.playback_ops = &snd_intel8x0_playback_ops,
1570 		.capture_ops = &snd_intel8x0_capture_ops,
1571 		.prealloc_size = 64 * 1024,
1572 		.prealloc_max_size = 128 * 1024,
1573 	},
1574 	{
1575 		.suffix = "MIC ADC",
1576 		.capture_ops = &snd_intel8x0_capture_mic_ops,
1577 		.prealloc_size = 0,
1578 		.prealloc_max_size = 128 * 1024,
1579 		.ac97_idx = ICHD_MIC,
1580 	},
1581 	{
1582 		.suffix = "MIC2 ADC",
1583 		.capture_ops = &snd_intel8x0_capture_mic2_ops,
1584 		.prealloc_size = 0,
1585 		.prealloc_max_size = 128 * 1024,
1586 		.ac97_idx = ICHD_MIC2,
1587 	},
1588 	{
1589 		.suffix = "ADC2",
1590 		.capture_ops = &snd_intel8x0_capture2_ops,
1591 		.prealloc_size = 0,
1592 		.prealloc_max_size = 128 * 1024,
1593 		.ac97_idx = ICHD_PCM2IN,
1594 	},
1595 	{
1596 		.suffix = "IEC958",
1597 		.playback_ops = &snd_intel8x0_spdif_ops,
1598 		.prealloc_size = 64 * 1024,
1599 		.prealloc_max_size = 128 * 1024,
1600 		.ac97_idx = ICHD_SPBAR,
1601 	},
1602 };
1603 
1604 static struct ich_pcm_table nforce_pcms[] = {
1605 	{
1606 		.playback_ops = &snd_intel8x0_playback_ops,
1607 		.capture_ops = &snd_intel8x0_capture_ops,
1608 		.prealloc_size = 64 * 1024,
1609 		.prealloc_max_size = 128 * 1024,
1610 	},
1611 	{
1612 		.suffix = "MIC ADC",
1613 		.capture_ops = &snd_intel8x0_capture_mic_ops,
1614 		.prealloc_size = 0,
1615 		.prealloc_max_size = 128 * 1024,
1616 		.ac97_idx = NVD_MIC,
1617 	},
1618 	{
1619 		.suffix = "IEC958",
1620 		.playback_ops = &snd_intel8x0_spdif_ops,
1621 		.prealloc_size = 64 * 1024,
1622 		.prealloc_max_size = 128 * 1024,
1623 		.ac97_idx = NVD_SPBAR,
1624 	},
1625 };
1626 
1627 static struct ich_pcm_table ali_pcms[] = {
1628 	{
1629 		.playback_ops = &snd_intel8x0_ali_playback_ops,
1630 		.capture_ops = &snd_intel8x0_ali_capture_ops,
1631 		.prealloc_size = 64 * 1024,
1632 		.prealloc_max_size = 128 * 1024,
1633 	},
1634 	{
1635 		.suffix = "MIC ADC",
1636 		.capture_ops = &snd_intel8x0_ali_capture_mic_ops,
1637 		.prealloc_size = 0,
1638 		.prealloc_max_size = 128 * 1024,
1639 		.ac97_idx = ALID_MIC,
1640 	},
1641 	{
1642 		.suffix = "IEC958",
1643 		.playback_ops = &snd_intel8x0_ali_ac97spdifout_ops,
1644 		/* .capture_ops = &snd_intel8x0_ali_spdifin_ops, */
1645 		.prealloc_size = 64 * 1024,
1646 		.prealloc_max_size = 128 * 1024,
1647 		.ac97_idx = ALID_AC97SPDIFOUT,
1648 	},
1649 #if 0 // NYI
1650 	{
1651 		.suffix = "HW IEC958",
1652 		.playback_ops = &snd_intel8x0_ali_spdifout_ops,
1653 		.prealloc_size = 64 * 1024,
1654 		.prealloc_max_size = 128 * 1024,
1655 	},
1656 #endif
1657 };
1658 
1659 static int snd_intel8x0_pcm(struct intel8x0 *chip)
1660 {
1661 	int i, tblsize, device, err;
1662 	struct ich_pcm_table *tbl, *rec;
1663 
1664 	switch (chip->device_type) {
1665 	case DEVICE_INTEL_ICH4:
1666 		tbl = intel_pcms;
1667 		tblsize = ARRAY_SIZE(intel_pcms);
1668 		if (spdif_aclink)
1669 			tblsize--;
1670 		break;
1671 	case DEVICE_NFORCE:
1672 		tbl = nforce_pcms;
1673 		tblsize = ARRAY_SIZE(nforce_pcms);
1674 		if (spdif_aclink)
1675 			tblsize--;
1676 		break;
1677 	case DEVICE_ALI:
1678 		tbl = ali_pcms;
1679 		tblsize = ARRAY_SIZE(ali_pcms);
1680 		break;
1681 	default:
1682 		tbl = intel_pcms;
1683 		tblsize = 2;
1684 		break;
1685 	}
1686 
1687 	device = 0;
1688 	for (i = 0; i < tblsize; i++) {
1689 		rec = tbl + i;
1690 		if (i > 0 && rec->ac97_idx) {
1691 			/* activate PCM only when associated AC'97 codec */
1692 			if (! chip->ichd[rec->ac97_idx].pcm)
1693 				continue;
1694 		}
1695 		err = snd_intel8x0_pcm1(chip, device, rec);
1696 		if (err < 0)
1697 			return err;
1698 		device++;
1699 	}
1700 
1701 	chip->pcm_devs = device;
1702 	return 0;
1703 }
1704 
1705 
1706 /*
1707  *  Mixer part
1708  */
1709 
1710 static void snd_intel8x0_mixer_free_ac97_bus(struct snd_ac97_bus *bus)
1711 {
1712 	struct intel8x0 *chip = bus->private_data;
1713 	chip->ac97_bus = NULL;
1714 }
1715 
1716 static void snd_intel8x0_mixer_free_ac97(struct snd_ac97 *ac97)
1717 {
1718 	struct intel8x0 *chip = ac97->private_data;
1719 	chip->ac97[ac97->num] = NULL;
1720 }
1721 
1722 static struct ac97_pcm ac97_pcm_defs[] = {
1723 	/* front PCM */
1724 	{
1725 		.exclusive = 1,
1726 		.r = {	{
1727 				.slots = (1 << AC97_SLOT_PCM_LEFT) |
1728 					 (1 << AC97_SLOT_PCM_RIGHT) |
1729 					 (1 << AC97_SLOT_PCM_CENTER) |
1730 					 (1 << AC97_SLOT_PCM_SLEFT) |
1731 					 (1 << AC97_SLOT_PCM_SRIGHT) |
1732 					 (1 << AC97_SLOT_LFE)
1733 			},
1734 			{
1735 				.slots = (1 << AC97_SLOT_PCM_LEFT) |
1736 					 (1 << AC97_SLOT_PCM_RIGHT) |
1737 					 (1 << AC97_SLOT_PCM_LEFT_0) |
1738 					 (1 << AC97_SLOT_PCM_RIGHT_0)
1739 			}
1740 		}
1741 	},
1742 	/* PCM IN #1 */
1743 	{
1744 		.stream = 1,
1745 		.exclusive = 1,
1746 		.r = {	{
1747 				.slots = (1 << AC97_SLOT_PCM_LEFT) |
1748 					 (1 << AC97_SLOT_PCM_RIGHT)
1749 			}
1750 		}
1751 	},
1752 	/* MIC IN #1 */
1753 	{
1754 		.stream = 1,
1755 		.exclusive = 1,
1756 		.r = {	{
1757 				.slots = (1 << AC97_SLOT_MIC)
1758 			}
1759 		}
1760 	},
1761 	/* S/PDIF PCM */
1762 	{
1763 		.exclusive = 1,
1764 		.spdif = 1,
1765 		.r = {	{
1766 				.slots = (1 << AC97_SLOT_SPDIF_LEFT2) |
1767 					 (1 << AC97_SLOT_SPDIF_RIGHT2)
1768 			}
1769 		}
1770 	},
1771 	/* PCM IN #2 */
1772 	{
1773 		.stream = 1,
1774 		.exclusive = 1,
1775 		.r = {	{
1776 				.slots = (1 << AC97_SLOT_PCM_LEFT) |
1777 					 (1 << AC97_SLOT_PCM_RIGHT)
1778 			}
1779 		}
1780 	},
1781 	/* MIC IN #2 */
1782 	{
1783 		.stream = 1,
1784 		.exclusive = 1,
1785 		.r = {	{
1786 				.slots = (1 << AC97_SLOT_MIC)
1787 			}
1788 		}
1789 	},
1790 };
1791 
1792 static struct ac97_quirk ac97_quirks[] = {
1793         {
1794 		.subvendor = 0x0e11,
1795 		.subdevice = 0x000e,
1796 		.name = "Compaq Deskpro EN",	/* AD1885 */
1797 		.type = AC97_TUNE_HP_ONLY
1798         },
1799 	{
1800 		.subvendor = 0x0e11,
1801 		.subdevice = 0x008a,
1802 		.name = "Compaq Evo W4000",	/* AD1885 */
1803 		.type = AC97_TUNE_HP_ONLY
1804 	},
1805 	{
1806 		.subvendor = 0x0e11,
1807 		.subdevice = 0x00b8,
1808 		.name = "Compaq Evo D510C",
1809 		.type = AC97_TUNE_HP_ONLY
1810 	},
1811         {
1812 		.subvendor = 0x0e11,
1813 		.subdevice = 0x0860,
1814 		.name = "HP/Compaq nx7010",
1815 		.type = AC97_TUNE_MUTE_LED
1816         },
1817 	{
1818 		.subvendor = 0x1014,
1819 		.subdevice = 0x0534,
1820 		.name = "ThinkPad X31",
1821 		.type = AC97_TUNE_INV_EAPD
1822 	},
1823 	{
1824 		.subvendor = 0x1014,
1825 		.subdevice = 0x1f00,
1826 		.name = "MS-9128",
1827 		.type = AC97_TUNE_ALC_JACK
1828 	},
1829 	{
1830 		.subvendor = 0x1014,
1831 		.subdevice = 0x0267,
1832 		.name = "IBM NetVista A30p",	/* AD1981B */
1833 		.type = AC97_TUNE_HP_ONLY
1834 	},
1835 	{
1836 		.subvendor = 0x1025,
1837 		.subdevice = 0x0082,
1838 		.name = "Acer Travelmate 2310",
1839 		.type = AC97_TUNE_HP_ONLY
1840 	},
1841 	{
1842 		.subvendor = 0x1025,
1843 		.subdevice = 0x0083,
1844 		.name = "Acer Aspire 3003LCi",
1845 		.type = AC97_TUNE_HP_ONLY
1846 	},
1847 	{
1848 		.subvendor = 0x1028,
1849 		.subdevice = 0x00d8,
1850 		.name = "Dell Precision 530",	/* AD1885 */
1851 		.type = AC97_TUNE_HP_ONLY
1852 	},
1853 	{
1854 		.subvendor = 0x1028,
1855 		.subdevice = 0x010d,
1856 		.name = "Dell",	/* which model?  AD1885 */
1857 		.type = AC97_TUNE_HP_ONLY
1858 	},
1859 	{
1860 		.subvendor = 0x1028,
1861 		.subdevice = 0x0126,
1862 		.name = "Dell Optiplex GX260",	/* AD1981A */
1863 		.type = AC97_TUNE_HP_ONLY
1864 	},
1865 	{
1866 		.subvendor = 0x1028,
1867 		.subdevice = 0x012c,
1868 		.name = "Dell Precision 650",	/* AD1981A */
1869 		.type = AC97_TUNE_HP_ONLY
1870 	},
1871 	{
1872 		.subvendor = 0x1028,
1873 		.subdevice = 0x012d,
1874 		.name = "Dell Precision 450",	/* AD1981B*/
1875 		.type = AC97_TUNE_HP_ONLY
1876 	},
1877 	{
1878 		.subvendor = 0x1028,
1879 		.subdevice = 0x0147,
1880 		.name = "Dell",	/* which model?  AD1981B*/
1881 		.type = AC97_TUNE_HP_ONLY
1882 	},
1883 	{
1884 		.subvendor = 0x1028,
1885 		.subdevice = 0x0151,
1886 		.name = "Dell Optiplex GX270",  /* AD1981B */
1887 		.type = AC97_TUNE_HP_ONLY
1888 	},
1889 	{
1890 		.subvendor = 0x1028,
1891 		.subdevice = 0x014e,
1892 		.name = "Dell D800", /* STAC9750/51 */
1893 		.type = AC97_TUNE_HP_ONLY
1894 	},
1895 	{
1896 		.subvendor = 0x1028,
1897 		.subdevice = 0x0163,
1898 		.name = "Dell Unknown",	/* STAC9750/51 */
1899 		.type = AC97_TUNE_HP_ONLY
1900 	},
1901 	{
1902 		.subvendor = 0x1028,
1903 		.subdevice = 0x016a,
1904 		.name = "Dell Inspiron 8600",	/* STAC9750/51 */
1905 		.type = AC97_TUNE_HP_ONLY
1906 	},
1907 	{
1908 		.subvendor = 0x1028,
1909 		.subdevice = 0x0182,
1910 		.name = "Dell Latitude D610",	/* STAC9750/51 */
1911 		.type = AC97_TUNE_HP_ONLY
1912 	},
1913 	{
1914 		.subvendor = 0x1028,
1915 		.subdevice = 0x0186,
1916 		.name = "Dell Latitude D810", /* cf. Malone #41015 */
1917 		.type = AC97_TUNE_HP_MUTE_LED
1918 	},
1919 	{
1920 		.subvendor = 0x1028,
1921 		.subdevice = 0x0188,
1922 		.name = "Dell Inspiron 6000",
1923 		.type = AC97_TUNE_HP_MUTE_LED /* cf. Malone #41015 */
1924 	},
1925 	{
1926 		.subvendor = 0x1028,
1927 		.subdevice = 0x0189,
1928 		.name = "Dell Inspiron 9300",
1929 		.type = AC97_TUNE_HP_MUTE_LED
1930 	},
1931 	{
1932 		.subvendor = 0x1028,
1933 		.subdevice = 0x0191,
1934 		.name = "Dell Inspiron 8600",
1935 		.type = AC97_TUNE_HP_ONLY
1936 	},
1937 	{
1938 		.subvendor = 0x103c,
1939 		.subdevice = 0x006d,
1940 		.name = "HP zv5000",
1941 		.type = AC97_TUNE_MUTE_LED	/*AD1981B*/
1942 	},
1943 	{	/* FIXME: which codec? */
1944 		.subvendor = 0x103c,
1945 		.subdevice = 0x00c3,
1946 		.name = "HP xw6000",
1947 		.type = AC97_TUNE_HP_ONLY
1948 	},
1949 	{
1950 		.subvendor = 0x103c,
1951 		.subdevice = 0x088c,
1952 		.name = "HP nc8000",
1953 		.type = AC97_TUNE_HP_MUTE_LED
1954 	},
1955 	{
1956 		.subvendor = 0x103c,
1957 		.subdevice = 0x0890,
1958 		.name = "HP nc6000",
1959 		.type = AC97_TUNE_MUTE_LED
1960 	},
1961 	{
1962 		.subvendor = 0x103c,
1963 		.subdevice = 0x129d,
1964 		.name = "HP xw8000",
1965 		.type = AC97_TUNE_HP_ONLY
1966 	},
1967 	{
1968 		.subvendor = 0x103c,
1969 		.subdevice = 0x0938,
1970 		.name = "HP nc4200",
1971 		.type = AC97_TUNE_HP_MUTE_LED
1972 	},
1973 	{
1974 		.subvendor = 0x103c,
1975 		.subdevice = 0x099c,
1976 		.name = "HP nx6110/nc6120",
1977 		.type = AC97_TUNE_HP_MUTE_LED
1978 	},
1979 	{
1980 		.subvendor = 0x103c,
1981 		.subdevice = 0x0944,
1982 		.name = "HP nc6220",
1983 		.type = AC97_TUNE_HP_MUTE_LED
1984 	},
1985 	{
1986 		.subvendor = 0x103c,
1987 		.subdevice = 0x0934,
1988 		.name = "HP nc8220",
1989 		.type = AC97_TUNE_HP_MUTE_LED
1990 	},
1991 	{
1992 		.subvendor = 0x103c,
1993 		.subdevice = 0x12f1,
1994 		.name = "HP xw8200",	/* AD1981B*/
1995 		.type = AC97_TUNE_HP_ONLY
1996 	},
1997 	{
1998 		.subvendor = 0x103c,
1999 		.subdevice = 0x12f2,
2000 		.name = "HP xw6200",
2001 		.type = AC97_TUNE_HP_ONLY
2002 	},
2003 	{
2004 		.subvendor = 0x103c,
2005 		.subdevice = 0x3008,
2006 		.name = "HP xw4200",	/* AD1981B*/
2007 		.type = AC97_TUNE_HP_ONLY
2008 	},
2009 	{
2010 		.subvendor = 0x104d,
2011 		.subdevice = 0x8144,
2012 		.name = "Sony",
2013 		.type = AC97_TUNE_INV_EAPD
2014 	},
2015 	{
2016 		.subvendor = 0x104d,
2017 		.subdevice = 0x8197,
2018 		.name = "Sony S1XP",
2019 		.type = AC97_TUNE_INV_EAPD
2020 	},
2021 	{
2022 		.subvendor = 0x104d,
2023 		.subdevice = 0x81c0,
2024 		.name = "Sony VAIO VGN-T350P", /*AD1981B*/
2025 		.type = AC97_TUNE_INV_EAPD
2026 	},
2027 	{
2028 		.subvendor = 0x104d,
2029 		.subdevice = 0x81c5,
2030 		.name = "Sony VAIO VGN-B1VP", /*AD1981B*/
2031 		.type = AC97_TUNE_INV_EAPD
2032 	},
2033  	{
2034 		.subvendor = 0x1043,
2035 		.subdevice = 0x80f3,
2036 		.name = "ASUS ICH5/AD1985",
2037 		.type = AC97_TUNE_AD_SHARING
2038 	},
2039 	{
2040 		.subvendor = 0x10cf,
2041 		.subdevice = 0x11c3,
2042 		.name = "Fujitsu-Siemens E4010",
2043 		.type = AC97_TUNE_HP_ONLY
2044 	},
2045 	{
2046 		.subvendor = 0x10cf,
2047 		.subdevice = 0x1225,
2048 		.name = "Fujitsu-Siemens T3010",
2049 		.type = AC97_TUNE_HP_ONLY
2050 	},
2051 	{
2052 		.subvendor = 0x10cf,
2053 		.subdevice = 0x1253,
2054 		.name = "Fujitsu S6210",	/* STAC9750/51 */
2055 		.type = AC97_TUNE_HP_ONLY
2056 	},
2057 	{
2058 		.subvendor = 0x10cf,
2059 		.subdevice = 0x127d,
2060 		.name = "Fujitsu Lifebook P7010",
2061 		.type = AC97_TUNE_HP_ONLY
2062 	},
2063 	{
2064 		.subvendor = 0x10cf,
2065 		.subdevice = 0x127e,
2066 		.name = "Fujitsu Lifebook C1211D",
2067 		.type = AC97_TUNE_HP_ONLY
2068 	},
2069 	{
2070 		.subvendor = 0x10cf,
2071 		.subdevice = 0x12ec,
2072 		.name = "Fujitsu-Siemens 4010",
2073 		.type = AC97_TUNE_HP_ONLY
2074 	},
2075 	{
2076 		.subvendor = 0x10cf,
2077 		.subdevice = 0x12f2,
2078 		.name = "Fujitsu-Siemens Celsius H320",
2079 		.type = AC97_TUNE_SWAP_HP
2080 	},
2081 	{
2082 		.subvendor = 0x10f1,
2083 		.subdevice = 0x2665,
2084 		.name = "Fujitsu-Siemens Celsius",	/* AD1981? */
2085 		.type = AC97_TUNE_HP_ONLY
2086 	},
2087 	{
2088 		.subvendor = 0x10f1,
2089 		.subdevice = 0x2885,
2090 		.name = "AMD64 Mobo",	/* ALC650 */
2091 		.type = AC97_TUNE_HP_ONLY
2092 	},
2093 	{
2094 		.subvendor = 0x10f1,
2095 		.subdevice = 0x2895,
2096 		.name = "Tyan Thunder K8WE",
2097 		.type = AC97_TUNE_HP_ONLY
2098 	},
2099 	{
2100 		.subvendor = 0x10f7,
2101 		.subdevice = 0x834c,
2102 		.name = "Panasonic CF-R4",
2103 		.type = AC97_TUNE_HP_ONLY,
2104 	},
2105 	{
2106 		.subvendor = 0x110a,
2107 		.subdevice = 0x0056,
2108 		.name = "Fujitsu-Siemens Scenic",	/* AD1981? */
2109 		.type = AC97_TUNE_HP_ONLY
2110 	},
2111 	{
2112 		.subvendor = 0x11d4,
2113 		.subdevice = 0x5375,
2114 		.name = "ADI AD1985 (discrete)",
2115 		.type = AC97_TUNE_HP_ONLY
2116 	},
2117 	{
2118 		.subvendor = 0x1462,
2119 		.subdevice = 0x5470,
2120 		.name = "MSI P4 ATX 645 Ultra",
2121 		.type = AC97_TUNE_HP_ONLY
2122 	},
2123 	{
2124 		.subvendor = 0x161f,
2125 		.subdevice = 0x202f,
2126 		.name = "Gateway M520",
2127 		.type = AC97_TUNE_INV_EAPD
2128 	},
2129 	{
2130 		.subvendor = 0x161f,
2131 		.subdevice = 0x203a,
2132 		.name = "Gateway 4525GZ",		/* AD1981B */
2133 		.type = AC97_TUNE_INV_EAPD
2134 	},
2135 	{
2136 		.subvendor = 0x1734,
2137 		.subdevice = 0x0088,
2138 		.name = "Fujitsu-Siemens D1522",	/* AD1981 */
2139 		.type = AC97_TUNE_HP_ONLY
2140 	},
2141 	{
2142 		.subvendor = 0x8086,
2143 		.subdevice = 0x2000,
2144 		.mask = 0xfff0,
2145 		.name = "Intel ICH5/AD1985",
2146 		.type = AC97_TUNE_AD_SHARING
2147 	},
2148 	{
2149 		.subvendor = 0x8086,
2150 		.subdevice = 0x4000,
2151 		.mask = 0xfff0,
2152 		.name = "Intel ICH5/AD1985",
2153 		.type = AC97_TUNE_AD_SHARING
2154 	},
2155 	{
2156 		.subvendor = 0x8086,
2157 		.subdevice = 0x4856,
2158 		.name = "Intel D845WN (82801BA)",
2159 		.type = AC97_TUNE_SWAP_HP
2160 	},
2161 	{
2162 		.subvendor = 0x8086,
2163 		.subdevice = 0x4d44,
2164 		.name = "Intel D850EMV2",	/* AD1885 */
2165 		.type = AC97_TUNE_HP_ONLY
2166 	},
2167 	{
2168 		.subvendor = 0x8086,
2169 		.subdevice = 0x4d56,
2170 		.name = "Intel ICH/AD1885",
2171 		.type = AC97_TUNE_HP_ONLY
2172 	},
2173 	{
2174 		.subvendor = 0x8086,
2175 		.subdevice = 0x6000,
2176 		.mask = 0xfff0,
2177 		.name = "Intel ICH5/AD1985",
2178 		.type = AC97_TUNE_AD_SHARING
2179 	},
2180 	{
2181 		.subvendor = 0x8086,
2182 		.subdevice = 0xe000,
2183 		.mask = 0xfff0,
2184 		.name = "Intel ICH5/AD1985",
2185 		.type = AC97_TUNE_AD_SHARING
2186 	},
2187 #if 0 /* FIXME: this seems wrong on most boards */
2188 	{
2189 		.subvendor = 0x8086,
2190 		.subdevice = 0xa000,
2191 		.mask = 0xfff0,
2192 		.name = "Intel ICH5/AD1985",
2193 		.type = AC97_TUNE_HP_ONLY
2194 	},
2195 #endif
2196 	{ } /* terminator */
2197 };
2198 
2199 static int snd_intel8x0_mixer(struct intel8x0 *chip, int ac97_clock,
2200 			      const char *quirk_override)
2201 {
2202 	struct snd_ac97_bus *pbus;
2203 	struct snd_ac97_template ac97;
2204 	int err;
2205 	unsigned int i, codecs;
2206 	unsigned int glob_sta = 0;
2207 	struct snd_ac97_bus_ops *ops;
2208 	static struct snd_ac97_bus_ops standard_bus_ops = {
2209 		.write = snd_intel8x0_codec_write,
2210 		.read = snd_intel8x0_codec_read,
2211 	};
2212 	static struct snd_ac97_bus_ops ali_bus_ops = {
2213 		.write = snd_intel8x0_ali_codec_write,
2214 		.read = snd_intel8x0_ali_codec_read,
2215 	};
2216 
2217 	chip->spdif_idx = -1; /* use PCMOUT (or disabled) */
2218 	if (!spdif_aclink) {
2219 		switch (chip->device_type) {
2220 		case DEVICE_NFORCE:
2221 			chip->spdif_idx = NVD_SPBAR;
2222 			break;
2223 		case DEVICE_ALI:
2224 			chip->spdif_idx = ALID_AC97SPDIFOUT;
2225 			break;
2226 		case DEVICE_INTEL_ICH4:
2227 			chip->spdif_idx = ICHD_SPBAR;
2228 			break;
2229 		}
2230 	}
2231 
2232 	chip->in_ac97_init = 1;
2233 
2234 	memset(&ac97, 0, sizeof(ac97));
2235 	ac97.private_data = chip;
2236 	ac97.private_free = snd_intel8x0_mixer_free_ac97;
2237 	ac97.scaps = AC97_SCAP_SKIP_MODEM | AC97_SCAP_POWER_SAVE;
2238 	if (chip->xbox)
2239 		ac97.scaps |= AC97_SCAP_DETECT_BY_VENDOR;
2240 	if (chip->device_type != DEVICE_ALI) {
2241 		glob_sta = igetdword(chip, ICHREG(GLOB_STA));
2242 		ops = &standard_bus_ops;
2243 		chip->in_sdin_init = 1;
2244 		codecs = 0;
2245 		for (i = 0; i < chip->max_codecs; i++) {
2246 			if (! (glob_sta & chip->codec_bit[i]))
2247 				continue;
2248 			if (chip->device_type == DEVICE_INTEL_ICH4) {
2249 				snd_intel8x0_codec_read_test(chip, codecs);
2250 				chip->ac97_sdin[codecs] =
2251 					igetbyte(chip, ICHREG(SDM)) & ICH_LDI_MASK;
2252 				if (snd_BUG_ON(chip->ac97_sdin[codecs] >= 3))
2253 					chip->ac97_sdin[codecs] = 0;
2254 			} else
2255 				chip->ac97_sdin[codecs] = i;
2256 			codecs++;
2257 		}
2258 		chip->in_sdin_init = 0;
2259 		if (! codecs)
2260 			codecs = 1;
2261 	} else {
2262 		ops = &ali_bus_ops;
2263 		codecs = 1;
2264 		/* detect the secondary codec */
2265 		for (i = 0; i < 100; i++) {
2266 			unsigned int reg = igetdword(chip, ICHREG(ALI_RTSR));
2267 			if (reg & 0x40) {
2268 				codecs = 2;
2269 				break;
2270 			}
2271 			iputdword(chip, ICHREG(ALI_RTSR), reg | 0x40);
2272 			udelay(1);
2273 		}
2274 	}
2275 	if ((err = snd_ac97_bus(chip->card, 0, ops, chip, &pbus)) < 0)
2276 		goto __err;
2277 	pbus->private_free = snd_intel8x0_mixer_free_ac97_bus;
2278 	if (ac97_clock >= 8000 && ac97_clock <= 48000)
2279 		pbus->clock = ac97_clock;
2280 	/* FIXME: my test board doesn't work well with VRA... */
2281 	if (chip->device_type == DEVICE_ALI)
2282 		pbus->no_vra = 1;
2283 	else
2284 		pbus->dra = 1;
2285 	chip->ac97_bus = pbus;
2286 	chip->ncodecs = codecs;
2287 
2288 	ac97.pci = chip->pci;
2289 	for (i = 0; i < codecs; i++) {
2290 		ac97.num = i;
2291 		if ((err = snd_ac97_mixer(pbus, &ac97, &chip->ac97[i])) < 0) {
2292 			if (err != -EACCES)
2293 				snd_printk(KERN_ERR "Unable to initialize codec #%d\n", i);
2294 			if (i == 0)
2295 				goto __err;
2296 		}
2297 	}
2298 	/* tune up the primary codec */
2299 	snd_ac97_tune_hardware(chip->ac97[0], ac97_quirks, quirk_override);
2300 	/* enable separate SDINs for ICH4 */
2301 	if (chip->device_type == DEVICE_INTEL_ICH4)
2302 		pbus->isdin = 1;
2303 	/* find the available PCM streams */
2304 	i = ARRAY_SIZE(ac97_pcm_defs);
2305 	if (chip->device_type != DEVICE_INTEL_ICH4)
2306 		i -= 2;		/* do not allocate PCM2IN and MIC2 */
2307 	if (chip->spdif_idx < 0)
2308 		i--;		/* do not allocate S/PDIF */
2309 	err = snd_ac97_pcm_assign(pbus, i, ac97_pcm_defs);
2310 	if (err < 0)
2311 		goto __err;
2312 	chip->ichd[ICHD_PCMOUT].pcm = &pbus->pcms[0];
2313 	chip->ichd[ICHD_PCMIN].pcm = &pbus->pcms[1];
2314 	chip->ichd[ICHD_MIC].pcm = &pbus->pcms[2];
2315 	if (chip->spdif_idx >= 0)
2316 		chip->ichd[chip->spdif_idx].pcm = &pbus->pcms[3];
2317 	if (chip->device_type == DEVICE_INTEL_ICH4) {
2318 		chip->ichd[ICHD_PCM2IN].pcm = &pbus->pcms[4];
2319 		chip->ichd[ICHD_MIC2].pcm = &pbus->pcms[5];
2320 	}
2321 	/* enable separate SDINs for ICH4 */
2322 	if (chip->device_type == DEVICE_INTEL_ICH4) {
2323 		struct ac97_pcm *pcm = chip->ichd[ICHD_PCM2IN].pcm;
2324 		u8 tmp = igetbyte(chip, ICHREG(SDM));
2325 		tmp &= ~(ICH_DI2L_MASK|ICH_DI1L_MASK);
2326 		if (pcm) {
2327 			tmp |= ICH_SE;	/* steer enable for multiple SDINs */
2328 			tmp |= chip->ac97_sdin[0] << ICH_DI1L_SHIFT;
2329 			for (i = 1; i < 4; i++) {
2330 				if (pcm->r[0].codec[i]) {
2331 					tmp |= chip->ac97_sdin[pcm->r[0].codec[1]->num] << ICH_DI2L_SHIFT;
2332 					break;
2333 				}
2334 			}
2335 		} else {
2336 			tmp &= ~ICH_SE; /* steer disable */
2337 		}
2338 		iputbyte(chip, ICHREG(SDM), tmp);
2339 	}
2340 	if (pbus->pcms[0].r[0].slots & (1 << AC97_SLOT_PCM_SLEFT)) {
2341 		chip->multi4 = 1;
2342 		if (pbus->pcms[0].r[0].slots & (1 << AC97_SLOT_LFE)) {
2343 			chip->multi6 = 1;
2344 			if (chip->ac97[0]->flags & AC97_HAS_8CH)
2345 				chip->multi8 = 1;
2346 		}
2347 	}
2348 	if (pbus->pcms[0].r[1].rslots[0]) {
2349 		chip->dra = 1;
2350 	}
2351 	if (chip->device_type == DEVICE_INTEL_ICH4) {
2352 		if ((igetdword(chip, ICHREG(GLOB_STA)) & ICH_SAMPLE_CAP) == ICH_SAMPLE_16_20)
2353 			chip->smp20bit = 1;
2354 	}
2355 	if (chip->device_type == DEVICE_NFORCE && !spdif_aclink) {
2356 		/* 48kHz only */
2357 		chip->ichd[chip->spdif_idx].pcm->rates = SNDRV_PCM_RATE_48000;
2358 	}
2359 	if (chip->device_type == DEVICE_INTEL_ICH4 && !spdif_aclink) {
2360 		/* use slot 10/11 for SPDIF */
2361 		u32 val;
2362 		val = igetdword(chip, ICHREG(GLOB_CNT)) & ~ICH_PCM_SPDIF_MASK;
2363 		val |= ICH_PCM_SPDIF_1011;
2364 		iputdword(chip, ICHREG(GLOB_CNT), val);
2365 		snd_ac97_update_bits(chip->ac97[0], AC97_EXTENDED_STATUS, 0x03 << 4, 0x03 << 4);
2366 	}
2367 	chip->in_ac97_init = 0;
2368 	return 0;
2369 
2370  __err:
2371 	/* clear the cold-reset bit for the next chance */
2372 	if (chip->device_type != DEVICE_ALI)
2373 		iputdword(chip, ICHREG(GLOB_CNT),
2374 			  igetdword(chip, ICHREG(GLOB_CNT)) & ~ICH_AC97COLD);
2375 	return err;
2376 }
2377 
2378 
2379 /*
2380  *
2381  */
2382 
2383 static void do_ali_reset(struct intel8x0 *chip)
2384 {
2385 	iputdword(chip, ICHREG(ALI_SCR), ICH_ALI_SC_RESET);
2386 	iputdword(chip, ICHREG(ALI_FIFOCR1), 0x83838383);
2387 	iputdword(chip, ICHREG(ALI_FIFOCR2), 0x83838383);
2388 	iputdword(chip, ICHREG(ALI_FIFOCR3), 0x83838383);
2389 	iputdword(chip, ICHREG(ALI_INTERFACECR),
2390 		  ICH_ALI_IF_PI|ICH_ALI_IF_PO);
2391 	iputdword(chip, ICHREG(ALI_INTERRUPTCR), 0x00000000);
2392 	iputdword(chip, ICHREG(ALI_INTERRUPTSR), 0x00000000);
2393 }
2394 
2395 #ifdef CONFIG_SND_AC97_POWER_SAVE
2396 static struct snd_pci_quirk ich_chip_reset_mode[] = {
2397 	SND_PCI_QUIRK(0x1014, 0x051f, "Thinkpad R32", 1),
2398 	{ } /* end */
2399 };
2400 
2401 static int snd_intel8x0_ich_chip_cold_reset(struct intel8x0 *chip)
2402 {
2403 	unsigned int cnt;
2404 	/* ACLink on, 2 channels */
2405 
2406 	if (snd_pci_quirk_lookup(chip->pci, ich_chip_reset_mode))
2407 		return -EIO;
2408 
2409 	cnt = igetdword(chip, ICHREG(GLOB_CNT));
2410 	cnt &= ~(ICH_ACLINK | ICH_PCM_246_MASK);
2411 
2412 	/* do cold reset - the full ac97 powerdown may leave the controller
2413 	 * in a warm state but actually it cannot communicate with the codec.
2414 	 */
2415 	iputdword(chip, ICHREG(GLOB_CNT), cnt & ~ICH_AC97COLD);
2416 	cnt = igetdword(chip, ICHREG(GLOB_CNT));
2417 	udelay(10);
2418 	iputdword(chip, ICHREG(GLOB_CNT), cnt | ICH_AC97COLD);
2419 	msleep(1);
2420 	return 0;
2421 }
2422 #define snd_intel8x0_ich_chip_can_cold_reset(chip) \
2423 	(!snd_pci_quirk_lookup(chip->pci, ich_chip_reset_mode))
2424 #else
2425 #define snd_intel8x0_ich_chip_cold_reset(chip)	0
2426 #define snd_intel8x0_ich_chip_can_cold_reset(chip) (0)
2427 #endif
2428 
2429 static int snd_intel8x0_ich_chip_reset(struct intel8x0 *chip)
2430 {
2431 	unsigned long end_time;
2432 	unsigned int cnt;
2433 	/* ACLink on, 2 channels */
2434 	cnt = igetdword(chip, ICHREG(GLOB_CNT));
2435 	cnt &= ~(ICH_ACLINK | ICH_PCM_246_MASK);
2436 	/* finish cold or do warm reset */
2437 	cnt |= (cnt & ICH_AC97COLD) == 0 ? ICH_AC97COLD : ICH_AC97WARM;
2438 	iputdword(chip, ICHREG(GLOB_CNT), cnt);
2439 	end_time = (jiffies + (HZ / 4)) + 1;
2440 	do {
2441 		if ((igetdword(chip, ICHREG(GLOB_CNT)) & ICH_AC97WARM) == 0)
2442 			return 0;
2443 		schedule_timeout_uninterruptible(1);
2444 	} while (time_after_eq(end_time, jiffies));
2445 	snd_printk(KERN_ERR "AC'97 warm reset still in progress? [0x%x]\n",
2446 		   igetdword(chip, ICHREG(GLOB_CNT)));
2447 	return -EIO;
2448 }
2449 
2450 static int snd_intel8x0_ich_chip_init(struct intel8x0 *chip, int probing)
2451 {
2452 	unsigned long end_time;
2453 	unsigned int status, nstatus;
2454 	unsigned int cnt;
2455 	int err;
2456 
2457 	/* put logic to right state */
2458 	/* first clear status bits */
2459 	status = ICH_RCS | ICH_MCINT | ICH_POINT | ICH_PIINT;
2460 	if (chip->device_type == DEVICE_NFORCE)
2461 		status |= ICH_NVSPINT;
2462 	cnt = igetdword(chip, ICHREG(GLOB_STA));
2463 	iputdword(chip, ICHREG(GLOB_STA), cnt & status);
2464 
2465 	if (snd_intel8x0_ich_chip_can_cold_reset(chip))
2466 		err = snd_intel8x0_ich_chip_cold_reset(chip);
2467 	else
2468 		err = snd_intel8x0_ich_chip_reset(chip);
2469 	if (err < 0)
2470 		return err;
2471 
2472 	if (probing) {
2473 		/* wait for any codec ready status.
2474 		 * Once it becomes ready it should remain ready
2475 		 * as long as we do not disable the ac97 link.
2476 		 */
2477 		end_time = jiffies + HZ;
2478 		do {
2479 			status = igetdword(chip, ICHREG(GLOB_STA)) &
2480 				chip->codec_isr_bits;
2481 			if (status)
2482 				break;
2483 			schedule_timeout_uninterruptible(1);
2484 		} while (time_after_eq(end_time, jiffies));
2485 		if (! status) {
2486 			/* no codec is found */
2487 			snd_printk(KERN_ERR "codec_ready: codec is not ready [0x%x]\n",
2488 				   igetdword(chip, ICHREG(GLOB_STA)));
2489 			return -EIO;
2490 		}
2491 
2492 		/* wait for other codecs ready status. */
2493 		end_time = jiffies + HZ / 4;
2494 		while (status != chip->codec_isr_bits &&
2495 		       time_after_eq(end_time, jiffies)) {
2496 			schedule_timeout_uninterruptible(1);
2497 			status |= igetdword(chip, ICHREG(GLOB_STA)) &
2498 				chip->codec_isr_bits;
2499 		}
2500 
2501 	} else {
2502 		/* resume phase */
2503 		int i;
2504 		status = 0;
2505 		for (i = 0; i < chip->ncodecs; i++)
2506 			if (chip->ac97[i])
2507 				status |= chip->codec_bit[chip->ac97_sdin[i]];
2508 		/* wait until all the probed codecs are ready */
2509 		end_time = jiffies + HZ;
2510 		do {
2511 			nstatus = igetdword(chip, ICHREG(GLOB_STA)) &
2512 				chip->codec_isr_bits;
2513 			if (status == nstatus)
2514 				break;
2515 			schedule_timeout_uninterruptible(1);
2516 		} while (time_after_eq(end_time, jiffies));
2517 	}
2518 
2519 	if (chip->device_type == DEVICE_SIS) {
2520 		/* unmute the output on SIS7012 */
2521 		iputword(chip, 0x4c, igetword(chip, 0x4c) | 1);
2522 	}
2523 	if (chip->device_type == DEVICE_NFORCE && !spdif_aclink) {
2524 		/* enable SPDIF interrupt */
2525 		unsigned int val;
2526 		pci_read_config_dword(chip->pci, 0x4c, &val);
2527 		val |= 0x1000000;
2528 		pci_write_config_dword(chip->pci, 0x4c, val);
2529 	}
2530       	return 0;
2531 }
2532 
2533 static int snd_intel8x0_ali_chip_init(struct intel8x0 *chip, int probing)
2534 {
2535 	u32 reg;
2536 	int i = 0;
2537 
2538 	reg = igetdword(chip, ICHREG(ALI_SCR));
2539 	if ((reg & 2) == 0)	/* Cold required */
2540 		reg |= 2;
2541 	else
2542 		reg |= 1;	/* Warm */
2543 	reg &= ~0x80000000;	/* ACLink on */
2544 	iputdword(chip, ICHREG(ALI_SCR), reg);
2545 
2546 	for (i = 0; i < HZ / 2; i++) {
2547 		if (! (igetdword(chip, ICHREG(ALI_INTERRUPTSR)) & ALI_INT_GPIO))
2548 			goto __ok;
2549 		schedule_timeout_uninterruptible(1);
2550 	}
2551 	snd_printk(KERN_ERR "AC'97 reset failed.\n");
2552 	if (probing)
2553 		return -EIO;
2554 
2555  __ok:
2556 	for (i = 0; i < HZ / 2; i++) {
2557 		reg = igetdword(chip, ICHREG(ALI_RTSR));
2558 		if (reg & 0x80) /* primary codec */
2559 			break;
2560 		iputdword(chip, ICHREG(ALI_RTSR), reg | 0x80);
2561 		schedule_timeout_uninterruptible(1);
2562 	}
2563 
2564 	do_ali_reset(chip);
2565 	return 0;
2566 }
2567 
2568 static int snd_intel8x0_chip_init(struct intel8x0 *chip, int probing)
2569 {
2570 	unsigned int i, timeout;
2571 	int err;
2572 
2573 	if (chip->device_type != DEVICE_ALI) {
2574 		if ((err = snd_intel8x0_ich_chip_init(chip, probing)) < 0)
2575 			return err;
2576 		iagetword(chip, 0);	/* clear semaphore flag */
2577 	} else {
2578 		if ((err = snd_intel8x0_ali_chip_init(chip, probing)) < 0)
2579 			return err;
2580 	}
2581 
2582 	/* disable interrupts */
2583 	for (i = 0; i < chip->bdbars_count; i++)
2584 		iputbyte(chip, ICH_REG_OFF_CR + chip->ichd[i].reg_offset, 0x00);
2585 	/* reset channels */
2586 	for (i = 0; i < chip->bdbars_count; i++)
2587 		iputbyte(chip, ICH_REG_OFF_CR + chip->ichd[i].reg_offset, ICH_RESETREGS);
2588 	for (i = 0; i < chip->bdbars_count; i++) {
2589 	        timeout = 100000;
2590 	        while (--timeout != 0) {
2591         		if ((igetbyte(chip, ICH_REG_OFF_CR + chip->ichd[i].reg_offset) & ICH_RESETREGS) == 0)
2592         		        break;
2593                 }
2594                 if (timeout == 0)
2595                         printk(KERN_ERR "intel8x0: reset of registers failed?\n");
2596         }
2597 	/* initialize Buffer Descriptor Lists */
2598 	for (i = 0; i < chip->bdbars_count; i++)
2599 		iputdword(chip, ICH_REG_OFF_BDBAR + chip->ichd[i].reg_offset,
2600 			  chip->ichd[i].bdbar_addr);
2601 	return 0;
2602 }
2603 
2604 static int snd_intel8x0_free(struct intel8x0 *chip)
2605 {
2606 	unsigned int i;
2607 
2608 	if (chip->irq < 0)
2609 		goto __hw_end;
2610 	/* disable interrupts */
2611 	for (i = 0; i < chip->bdbars_count; i++)
2612 		iputbyte(chip, ICH_REG_OFF_CR + chip->ichd[i].reg_offset, 0x00);
2613 	/* reset channels */
2614 	for (i = 0; i < chip->bdbars_count; i++)
2615 		iputbyte(chip, ICH_REG_OFF_CR + chip->ichd[i].reg_offset, ICH_RESETREGS);
2616 	if (chip->device_type == DEVICE_NFORCE && !spdif_aclink) {
2617 		/* stop the spdif interrupt */
2618 		unsigned int val;
2619 		pci_read_config_dword(chip->pci, 0x4c, &val);
2620 		val &= ~0x1000000;
2621 		pci_write_config_dword(chip->pci, 0x4c, val);
2622 	}
2623 	/* --- */
2624 
2625       __hw_end:
2626 	if (chip->irq >= 0)
2627 		free_irq(chip->irq, chip);
2628 	if (chip->bdbars.area) {
2629 		if (chip->fix_nocache)
2630 			fill_nocache(chip->bdbars.area, chip->bdbars.bytes, 0);
2631 		snd_dma_free_pages(&chip->bdbars);
2632 	}
2633 	if (chip->addr)
2634 		pci_iounmap(chip->pci, chip->addr);
2635 	if (chip->bmaddr)
2636 		pci_iounmap(chip->pci, chip->bmaddr);
2637 	pci_release_regions(chip->pci);
2638 	pci_disable_device(chip->pci);
2639 	kfree(chip);
2640 	return 0;
2641 }
2642 
2643 #ifdef CONFIG_PM_SLEEP
2644 /*
2645  * power management
2646  */
2647 static int intel8x0_suspend(struct device *dev)
2648 {
2649 	struct pci_dev *pci = to_pci_dev(dev);
2650 	struct snd_card *card = dev_get_drvdata(dev);
2651 	struct intel8x0 *chip = card->private_data;
2652 	int i;
2653 
2654 	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
2655 	for (i = 0; i < chip->pcm_devs; i++)
2656 		snd_pcm_suspend_all(chip->pcm[i]);
2657 	/* clear nocache */
2658 	if (chip->fix_nocache) {
2659 		for (i = 0; i < chip->bdbars_count; i++) {
2660 			struct ichdev *ichdev = &chip->ichd[i];
2661 			if (ichdev->substream && ichdev->page_attr_changed) {
2662 				struct snd_pcm_runtime *runtime = ichdev->substream->runtime;
2663 				if (runtime->dma_area)
2664 					fill_nocache(runtime->dma_area, runtime->dma_bytes, 0);
2665 			}
2666 		}
2667 	}
2668 	for (i = 0; i < chip->ncodecs; i++)
2669 		snd_ac97_suspend(chip->ac97[i]);
2670 	if (chip->device_type == DEVICE_INTEL_ICH4)
2671 		chip->sdm_saved = igetbyte(chip, ICHREG(SDM));
2672 
2673 	if (chip->irq >= 0) {
2674 		free_irq(chip->irq, chip);
2675 		chip->irq = -1;
2676 	}
2677 	pci_disable_device(pci);
2678 	pci_save_state(pci);
2679 	/* The call below may disable built-in speaker on some laptops
2680 	 * after S2RAM.  So, don't touch it.
2681 	 */
2682 	/* pci_set_power_state(pci, PCI_D3hot); */
2683 	return 0;
2684 }
2685 
2686 static int intel8x0_resume(struct device *dev)
2687 {
2688 	struct pci_dev *pci = to_pci_dev(dev);
2689 	struct snd_card *card = dev_get_drvdata(dev);
2690 	struct intel8x0 *chip = card->private_data;
2691 	int i;
2692 
2693 	pci_set_power_state(pci, PCI_D0);
2694 	pci_restore_state(pci);
2695 	if (pci_enable_device(pci) < 0) {
2696 		printk(KERN_ERR "intel8x0: pci_enable_device failed, "
2697 		       "disabling device\n");
2698 		snd_card_disconnect(card);
2699 		return -EIO;
2700 	}
2701 	pci_set_master(pci);
2702 	snd_intel8x0_chip_init(chip, 0);
2703 	if (request_irq(pci->irq, snd_intel8x0_interrupt,
2704 			IRQF_SHARED, KBUILD_MODNAME, chip)) {
2705 		printk(KERN_ERR "intel8x0: unable to grab IRQ %d, "
2706 		       "disabling device\n", pci->irq);
2707 		snd_card_disconnect(card);
2708 		return -EIO;
2709 	}
2710 	chip->irq = pci->irq;
2711 	synchronize_irq(chip->irq);
2712 
2713 	/* re-initialize mixer stuff */
2714 	if (chip->device_type == DEVICE_INTEL_ICH4 && !spdif_aclink) {
2715 		/* enable separate SDINs for ICH4 */
2716 		iputbyte(chip, ICHREG(SDM), chip->sdm_saved);
2717 		/* use slot 10/11 for SPDIF */
2718 		iputdword(chip, ICHREG(GLOB_CNT),
2719 			  (igetdword(chip, ICHREG(GLOB_CNT)) & ~ICH_PCM_SPDIF_MASK) |
2720 			  ICH_PCM_SPDIF_1011);
2721 	}
2722 
2723 	/* refill nocache */
2724 	if (chip->fix_nocache)
2725 		fill_nocache(chip->bdbars.area, chip->bdbars.bytes, 1);
2726 
2727 	for (i = 0; i < chip->ncodecs; i++)
2728 		snd_ac97_resume(chip->ac97[i]);
2729 
2730 	/* refill nocache */
2731 	if (chip->fix_nocache) {
2732 		for (i = 0; i < chip->bdbars_count; i++) {
2733 			struct ichdev *ichdev = &chip->ichd[i];
2734 			if (ichdev->substream && ichdev->page_attr_changed) {
2735 				struct snd_pcm_runtime *runtime = ichdev->substream->runtime;
2736 				if (runtime->dma_area)
2737 					fill_nocache(runtime->dma_area, runtime->dma_bytes, 1);
2738 			}
2739 		}
2740 	}
2741 
2742 	/* resume status */
2743 	for (i = 0; i < chip->bdbars_count; i++) {
2744 		struct ichdev *ichdev = &chip->ichd[i];
2745 		unsigned long port = ichdev->reg_offset;
2746 		if (! ichdev->substream || ! ichdev->suspended)
2747 			continue;
2748 		if (ichdev->ichd == ICHD_PCMOUT)
2749 			snd_intel8x0_setup_pcm_out(chip, ichdev->substream->runtime);
2750 		iputdword(chip, port + ICH_REG_OFF_BDBAR, ichdev->bdbar_addr);
2751 		iputbyte(chip, port + ICH_REG_OFF_LVI, ichdev->lvi);
2752 		iputbyte(chip, port + ICH_REG_OFF_CIV, ichdev->civ);
2753 		iputbyte(chip, port + ichdev->roff_sr, ICH_FIFOE | ICH_BCIS | ICH_LVBCI);
2754 	}
2755 
2756 	snd_power_change_state(card, SNDRV_CTL_POWER_D0);
2757 	return 0;
2758 }
2759 
2760 static SIMPLE_DEV_PM_OPS(intel8x0_pm, intel8x0_suspend, intel8x0_resume);
2761 #define INTEL8X0_PM_OPS	&intel8x0_pm
2762 #else
2763 #define INTEL8X0_PM_OPS	NULL
2764 #endif /* CONFIG_PM_SLEEP */
2765 
2766 #define INTEL8X0_TESTBUF_SIZE	32768	/* enough large for one shot */
2767 
2768 static void intel8x0_measure_ac97_clock(struct intel8x0 *chip)
2769 {
2770 	struct snd_pcm_substream *subs;
2771 	struct ichdev *ichdev;
2772 	unsigned long port;
2773 	unsigned long pos, pos1, t;
2774 	int civ, timeout = 1000, attempt = 1;
2775 	struct timespec start_time, stop_time;
2776 
2777 	if (chip->ac97_bus->clock != 48000)
2778 		return; /* specified in module option */
2779 
2780       __again:
2781 	subs = chip->pcm[0]->streams[0].substream;
2782 	if (! subs || subs->dma_buffer.bytes < INTEL8X0_TESTBUF_SIZE) {
2783 		snd_printk(KERN_WARNING "no playback buffer allocated - aborting measure ac97 clock\n");
2784 		return;
2785 	}
2786 	ichdev = &chip->ichd[ICHD_PCMOUT];
2787 	ichdev->physbuf = subs->dma_buffer.addr;
2788 	ichdev->size = ichdev->fragsize = INTEL8X0_TESTBUF_SIZE;
2789 	ichdev->substream = NULL; /* don't process interrupts */
2790 
2791 	/* set rate */
2792 	if (snd_ac97_set_rate(chip->ac97[0], AC97_PCM_FRONT_DAC_RATE, 48000) < 0) {
2793 		snd_printk(KERN_ERR "cannot set ac97 rate: clock = %d\n", chip->ac97_bus->clock);
2794 		return;
2795 	}
2796 	snd_intel8x0_setup_periods(chip, ichdev);
2797 	port = ichdev->reg_offset;
2798 	spin_lock_irq(&chip->reg_lock);
2799 	chip->in_measurement = 1;
2800 	/* trigger */
2801 	if (chip->device_type != DEVICE_ALI)
2802 		iputbyte(chip, port + ICH_REG_OFF_CR, ICH_IOCE | ICH_STARTBM);
2803 	else {
2804 		iputbyte(chip, port + ICH_REG_OFF_CR, ICH_IOCE);
2805 		iputdword(chip, ICHREG(ALI_DMACR), 1 << ichdev->ali_slot);
2806 	}
2807 	do_posix_clock_monotonic_gettime(&start_time);
2808 	spin_unlock_irq(&chip->reg_lock);
2809 	msleep(50);
2810 	spin_lock_irq(&chip->reg_lock);
2811 	/* check the position */
2812 	do {
2813 		civ = igetbyte(chip, ichdev->reg_offset + ICH_REG_OFF_CIV);
2814 		pos1 = igetword(chip, ichdev->reg_offset + ichdev->roff_picb);
2815 		if (pos1 == 0) {
2816 			udelay(10);
2817 			continue;
2818 		}
2819 		if (civ == igetbyte(chip, ichdev->reg_offset + ICH_REG_OFF_CIV) &&
2820 		    pos1 == igetword(chip, ichdev->reg_offset + ichdev->roff_picb))
2821 			break;
2822 	} while (timeout--);
2823 	if (pos1 == 0) {	/* oops, this value is not reliable */
2824 		pos = 0;
2825 	} else {
2826 		pos = ichdev->fragsize1;
2827 		pos -= pos1 << ichdev->pos_shift;
2828 		pos += ichdev->position;
2829 	}
2830 	chip->in_measurement = 0;
2831 	do_posix_clock_monotonic_gettime(&stop_time);
2832 	/* stop */
2833 	if (chip->device_type == DEVICE_ALI) {
2834 		iputdword(chip, ICHREG(ALI_DMACR), 1 << (ichdev->ali_slot + 16));
2835 		iputbyte(chip, port + ICH_REG_OFF_CR, 0);
2836 		while (igetbyte(chip, port + ICH_REG_OFF_CR))
2837 			;
2838 	} else {
2839 		iputbyte(chip, port + ICH_REG_OFF_CR, 0);
2840 		while (!(igetbyte(chip, port + ichdev->roff_sr) & ICH_DCH))
2841 			;
2842 	}
2843 	iputbyte(chip, port + ICH_REG_OFF_CR, ICH_RESETREGS);
2844 	spin_unlock_irq(&chip->reg_lock);
2845 
2846 	if (pos == 0) {
2847 		snd_printk(KERN_ERR "intel8x0: measure - unreliable DMA position..\n");
2848 	      __retry:
2849 		if (attempt < 3) {
2850 			msleep(300);
2851 			attempt++;
2852 			goto __again;
2853 		}
2854 		goto __end;
2855 	}
2856 
2857 	pos /= 4;
2858 	t = stop_time.tv_sec - start_time.tv_sec;
2859 	t *= 1000000;
2860 	t += (stop_time.tv_nsec - start_time.tv_nsec) / 1000;
2861 	printk(KERN_INFO "%s: measured %lu usecs (%lu samples)\n", __func__, t, pos);
2862 	if (t == 0) {
2863 		snd_printk(KERN_ERR "intel8x0: ?? calculation error..\n");
2864 		goto __retry;
2865 	}
2866 	pos *= 1000;
2867 	pos = (pos / t) * 1000 + ((pos % t) * 1000) / t;
2868 	if (pos < 40000 || pos >= 60000) {
2869 		/* abnormal value. hw problem? */
2870 		printk(KERN_INFO "intel8x0: measured clock %ld rejected\n", pos);
2871 		goto __retry;
2872 	} else if (pos > 40500 && pos < 41500)
2873 		/* first exception - 41000Hz reference clock */
2874 		chip->ac97_bus->clock = 41000;
2875 	else if (pos > 43600 && pos < 44600)
2876 		/* second exception - 44100HZ reference clock */
2877 		chip->ac97_bus->clock = 44100;
2878 	else if (pos < 47500 || pos > 48500)
2879 		/* not 48000Hz, tuning the clock.. */
2880 		chip->ac97_bus->clock = (chip->ac97_bus->clock * 48000) / pos;
2881       __end:
2882 	printk(KERN_INFO "intel8x0: clocking to %d\n", chip->ac97_bus->clock);
2883 	snd_ac97_update_power(chip->ac97[0], AC97_PCM_FRONT_DAC_RATE, 0);
2884 }
2885 
2886 static struct snd_pci_quirk intel8x0_clock_list[] = {
2887 	SND_PCI_QUIRK(0x0e11, 0x008a, "AD1885", 41000),
2888 	SND_PCI_QUIRK(0x1028, 0x00be, "AD1885", 44100),
2889 	SND_PCI_QUIRK(0x1028, 0x0177, "AD1980", 48000),
2890 	SND_PCI_QUIRK(0x1028, 0x01ad, "AD1981B", 48000),
2891 	SND_PCI_QUIRK(0x1043, 0x80f3, "AD1985", 48000),
2892 	{ }	/* terminator */
2893 };
2894 
2895 static int intel8x0_in_clock_list(struct intel8x0 *chip)
2896 {
2897 	struct pci_dev *pci = chip->pci;
2898 	const struct snd_pci_quirk *wl;
2899 
2900 	wl = snd_pci_quirk_lookup(pci, intel8x0_clock_list);
2901 	if (!wl)
2902 		return 0;
2903 	printk(KERN_INFO "intel8x0: white list rate for %04x:%04x is %i\n",
2904 	       pci->subsystem_vendor, pci->subsystem_device, wl->value);
2905 	chip->ac97_bus->clock = wl->value;
2906 	return 1;
2907 }
2908 
2909 #ifdef CONFIG_PROC_FS
2910 static void snd_intel8x0_proc_read(struct snd_info_entry * entry,
2911 				   struct snd_info_buffer *buffer)
2912 {
2913 	struct intel8x0 *chip = entry->private_data;
2914 	unsigned int tmp;
2915 
2916 	snd_iprintf(buffer, "Intel8x0\n\n");
2917 	if (chip->device_type == DEVICE_ALI)
2918 		return;
2919 	tmp = igetdword(chip, ICHREG(GLOB_STA));
2920 	snd_iprintf(buffer, "Global control        : 0x%08x\n", igetdword(chip, ICHREG(GLOB_CNT)));
2921 	snd_iprintf(buffer, "Global status         : 0x%08x\n", tmp);
2922 	if (chip->device_type == DEVICE_INTEL_ICH4)
2923 		snd_iprintf(buffer, "SDM                   : 0x%08x\n", igetdword(chip, ICHREG(SDM)));
2924 	snd_iprintf(buffer, "AC'97 codecs ready    :");
2925 	if (tmp & chip->codec_isr_bits) {
2926 		int i;
2927 		static const char *codecs[3] = {
2928 			"primary", "secondary", "tertiary"
2929 		};
2930 		for (i = 0; i < chip->max_codecs; i++)
2931 			if (tmp & chip->codec_bit[i])
2932 				snd_iprintf(buffer, " %s", codecs[i]);
2933 	} else
2934 		snd_iprintf(buffer, " none");
2935 	snd_iprintf(buffer, "\n");
2936 	if (chip->device_type == DEVICE_INTEL_ICH4 ||
2937 	    chip->device_type == DEVICE_SIS)
2938 		snd_iprintf(buffer, "AC'97 codecs SDIN     : %i %i %i\n",
2939 			chip->ac97_sdin[0],
2940 			chip->ac97_sdin[1],
2941 			chip->ac97_sdin[2]);
2942 }
2943 
2944 static void snd_intel8x0_proc_init(struct intel8x0 *chip)
2945 {
2946 	struct snd_info_entry *entry;
2947 
2948 	if (! snd_card_proc_new(chip->card, "intel8x0", &entry))
2949 		snd_info_set_text_ops(entry, chip, snd_intel8x0_proc_read);
2950 }
2951 #else
2952 #define snd_intel8x0_proc_init(x)
2953 #endif
2954 
2955 static int snd_intel8x0_dev_free(struct snd_device *device)
2956 {
2957 	struct intel8x0 *chip = device->device_data;
2958 	return snd_intel8x0_free(chip);
2959 }
2960 
2961 struct ich_reg_info {
2962 	unsigned int int_sta_mask;
2963 	unsigned int offset;
2964 };
2965 
2966 static unsigned int ich_codec_bits[3] = {
2967 	ICH_PCR, ICH_SCR, ICH_TCR
2968 };
2969 static unsigned int sis_codec_bits[3] = {
2970 	ICH_PCR, ICH_SCR, ICH_SIS_TCR
2971 };
2972 
2973 static int snd_intel8x0_inside_vm(struct pci_dev *pci)
2974 {
2975 	int result  = inside_vm;
2976 	char *msg   = NULL;
2977 
2978 	/* check module parameter first (override detection) */
2979 	if (result >= 0) {
2980 		msg = result ? "enable (forced) VM" : "disable (forced) VM";
2981 		goto fini;
2982 	}
2983 
2984 	/* detect KVM and Parallels virtual environments */
2985 	result = kvm_para_available();
2986 #ifdef X86_FEATURE_HYPERVISOR
2987 	result = result || boot_cpu_has(X86_FEATURE_HYPERVISOR);
2988 #endif
2989 	if (!result)
2990 		goto fini;
2991 
2992 	/* check for known (emulated) devices */
2993 	if (pci->subsystem_vendor == 0x1af4 &&
2994 	    pci->subsystem_device == 0x1100) {
2995 		/* KVM emulated sound, PCI SSID: 1af4:1100 */
2996 		msg = "enable KVM";
2997 	} else if (pci->subsystem_vendor == 0x1ab8) {
2998 		/* Parallels VM emulated sound, PCI SSID: 1ab8:xxxx */
2999 		msg = "enable Parallels VM";
3000 	} else {
3001 		msg = "disable (unknown or VT-d) VM";
3002 		result = 0;
3003 	}
3004 
3005 fini:
3006 	if (msg != NULL)
3007 		printk(KERN_INFO "intel8x0: %s optimization\n", msg);
3008 
3009 	return result;
3010 }
3011 
3012 static int snd_intel8x0_create(struct snd_card *card,
3013 			       struct pci_dev *pci,
3014 			       unsigned long device_type,
3015 			       struct intel8x0 **r_intel8x0)
3016 {
3017 	struct intel8x0 *chip;
3018 	int err;
3019 	unsigned int i;
3020 	unsigned int int_sta_masks;
3021 	struct ichdev *ichdev;
3022 	static struct snd_device_ops ops = {
3023 		.dev_free =	snd_intel8x0_dev_free,
3024 	};
3025 
3026 	static unsigned int bdbars[] = {
3027 		3, /* DEVICE_INTEL */
3028 		6, /* DEVICE_INTEL_ICH4 */
3029 		3, /* DEVICE_SIS */
3030 		6, /* DEVICE_ALI */
3031 		4, /* DEVICE_NFORCE */
3032 	};
3033 	static struct ich_reg_info intel_regs[6] = {
3034 		{ ICH_PIINT, 0 },
3035 		{ ICH_POINT, 0x10 },
3036 		{ ICH_MCINT, 0x20 },
3037 		{ ICH_M2INT, 0x40 },
3038 		{ ICH_P2INT, 0x50 },
3039 		{ ICH_SPINT, 0x60 },
3040 	};
3041 	static struct ich_reg_info nforce_regs[4] = {
3042 		{ ICH_PIINT, 0 },
3043 		{ ICH_POINT, 0x10 },
3044 		{ ICH_MCINT, 0x20 },
3045 		{ ICH_NVSPINT, 0x70 },
3046 	};
3047 	static struct ich_reg_info ali_regs[6] = {
3048 		{ ALI_INT_PCMIN, 0x40 },
3049 		{ ALI_INT_PCMOUT, 0x50 },
3050 		{ ALI_INT_MICIN, 0x60 },
3051 		{ ALI_INT_CODECSPDIFOUT, 0x70 },
3052 		{ ALI_INT_SPDIFIN, 0xa0 },
3053 		{ ALI_INT_SPDIFOUT, 0xb0 },
3054 	};
3055 	struct ich_reg_info *tbl;
3056 
3057 	*r_intel8x0 = NULL;
3058 
3059 	if ((err = pci_enable_device(pci)) < 0)
3060 		return err;
3061 
3062 	chip = kzalloc(sizeof(*chip), GFP_KERNEL);
3063 	if (chip == NULL) {
3064 		pci_disable_device(pci);
3065 		return -ENOMEM;
3066 	}
3067 	spin_lock_init(&chip->reg_lock);
3068 	chip->device_type = device_type;
3069 	chip->card = card;
3070 	chip->pci = pci;
3071 	chip->irq = -1;
3072 
3073 	/* module parameters */
3074 	chip->buggy_irq = buggy_irq;
3075 	chip->buggy_semaphore = buggy_semaphore;
3076 	if (xbox)
3077 		chip->xbox = 1;
3078 
3079 	chip->inside_vm = snd_intel8x0_inside_vm(pci);
3080 
3081 	if (pci->vendor == PCI_VENDOR_ID_INTEL &&
3082 	    pci->device == PCI_DEVICE_ID_INTEL_440MX)
3083 		chip->fix_nocache = 1; /* enable workaround */
3084 
3085 	if ((err = pci_request_regions(pci, card->shortname)) < 0) {
3086 		kfree(chip);
3087 		pci_disable_device(pci);
3088 		return err;
3089 	}
3090 
3091 	if (device_type == DEVICE_ALI) {
3092 		/* ALI5455 has no ac97 region */
3093 		chip->bmaddr = pci_iomap(pci, 0, 0);
3094 		goto port_inited;
3095 	}
3096 
3097 	if (pci_resource_flags(pci, 2) & IORESOURCE_MEM) /* ICH4 and Nforce */
3098 		chip->addr = pci_iomap(pci, 2, 0);
3099 	else
3100 		chip->addr = pci_iomap(pci, 0, 0);
3101 	if (!chip->addr) {
3102 		snd_printk(KERN_ERR "AC'97 space ioremap problem\n");
3103 		snd_intel8x0_free(chip);
3104 		return -EIO;
3105 	}
3106 	if (pci_resource_flags(pci, 3) & IORESOURCE_MEM) /* ICH4 */
3107 		chip->bmaddr = pci_iomap(pci, 3, 0);
3108 	else
3109 		chip->bmaddr = pci_iomap(pci, 1, 0);
3110 	if (!chip->bmaddr) {
3111 		snd_printk(KERN_ERR "Controller space ioremap problem\n");
3112 		snd_intel8x0_free(chip);
3113 		return -EIO;
3114 	}
3115 
3116  port_inited:
3117 	chip->bdbars_count = bdbars[device_type];
3118 
3119 	/* initialize offsets */
3120 	switch (device_type) {
3121 	case DEVICE_NFORCE:
3122 		tbl = nforce_regs;
3123 		break;
3124 	case DEVICE_ALI:
3125 		tbl = ali_regs;
3126 		break;
3127 	default:
3128 		tbl = intel_regs;
3129 		break;
3130 	}
3131 	for (i = 0; i < chip->bdbars_count; i++) {
3132 		ichdev = &chip->ichd[i];
3133 		ichdev->ichd = i;
3134 		ichdev->reg_offset = tbl[i].offset;
3135 		ichdev->int_sta_mask = tbl[i].int_sta_mask;
3136 		if (device_type == DEVICE_SIS) {
3137 			/* SiS 7012 swaps the registers */
3138 			ichdev->roff_sr = ICH_REG_OFF_PICB;
3139 			ichdev->roff_picb = ICH_REG_OFF_SR;
3140 		} else {
3141 			ichdev->roff_sr = ICH_REG_OFF_SR;
3142 			ichdev->roff_picb = ICH_REG_OFF_PICB;
3143 		}
3144 		if (device_type == DEVICE_ALI)
3145 			ichdev->ali_slot = (ichdev->reg_offset - 0x40) / 0x10;
3146 		/* SIS7012 handles the pcm data in bytes, others are in samples */
3147 		ichdev->pos_shift = (device_type == DEVICE_SIS) ? 0 : 1;
3148 	}
3149 
3150 	/* allocate buffer descriptor lists */
3151 	/* the start of each lists must be aligned to 8 bytes */
3152 	if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci),
3153 				chip->bdbars_count * sizeof(u32) * ICH_MAX_FRAGS * 2,
3154 				&chip->bdbars) < 0) {
3155 		snd_intel8x0_free(chip);
3156 		snd_printk(KERN_ERR "intel8x0: cannot allocate buffer descriptors\n");
3157 		return -ENOMEM;
3158 	}
3159 	/* tables must be aligned to 8 bytes here, but the kernel pages
3160 	   are much bigger, so we don't care (on i386) */
3161 	/* workaround for 440MX */
3162 	if (chip->fix_nocache)
3163 		fill_nocache(chip->bdbars.area, chip->bdbars.bytes, 1);
3164 	int_sta_masks = 0;
3165 	for (i = 0; i < chip->bdbars_count; i++) {
3166 		ichdev = &chip->ichd[i];
3167 		ichdev->bdbar = ((u32 *)chip->bdbars.area) +
3168 			(i * ICH_MAX_FRAGS * 2);
3169 		ichdev->bdbar_addr = chip->bdbars.addr +
3170 			(i * sizeof(u32) * ICH_MAX_FRAGS * 2);
3171 		int_sta_masks |= ichdev->int_sta_mask;
3172 	}
3173 	chip->int_sta_reg = device_type == DEVICE_ALI ?
3174 		ICH_REG_ALI_INTERRUPTSR : ICH_REG_GLOB_STA;
3175 	chip->int_sta_mask = int_sta_masks;
3176 
3177 	pci_set_master(pci);
3178 
3179 	switch(chip->device_type) {
3180 	case DEVICE_INTEL_ICH4:
3181 		/* ICH4 can have three codecs */
3182 		chip->max_codecs = 3;
3183 		chip->codec_bit = ich_codec_bits;
3184 		chip->codec_ready_bits = ICH_PRI | ICH_SRI | ICH_TRI;
3185 		break;
3186 	case DEVICE_SIS:
3187 		/* recent SIS7012 can have three codecs */
3188 		chip->max_codecs = 3;
3189 		chip->codec_bit = sis_codec_bits;
3190 		chip->codec_ready_bits = ICH_PRI | ICH_SRI | ICH_SIS_TRI;
3191 		break;
3192 	default:
3193 		/* others up to two codecs */
3194 		chip->max_codecs = 2;
3195 		chip->codec_bit = ich_codec_bits;
3196 		chip->codec_ready_bits = ICH_PRI | ICH_SRI;
3197 		break;
3198 	}
3199 	for (i = 0; i < chip->max_codecs; i++)
3200 		chip->codec_isr_bits |= chip->codec_bit[i];
3201 
3202 	if ((err = snd_intel8x0_chip_init(chip, 1)) < 0) {
3203 		snd_intel8x0_free(chip);
3204 		return err;
3205 	}
3206 
3207 	/* request irq after initializaing int_sta_mask, etc */
3208 	if (request_irq(pci->irq, snd_intel8x0_interrupt,
3209 			IRQF_SHARED, KBUILD_MODNAME, chip)) {
3210 		snd_printk(KERN_ERR "unable to grab IRQ %d\n", pci->irq);
3211 		snd_intel8x0_free(chip);
3212 		return -EBUSY;
3213 	}
3214 	chip->irq = pci->irq;
3215 
3216 	if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
3217 		snd_intel8x0_free(chip);
3218 		return err;
3219 	}
3220 
3221 	snd_card_set_dev(card, &pci->dev);
3222 
3223 	*r_intel8x0 = chip;
3224 	return 0;
3225 }
3226 
3227 static struct shortname_table {
3228 	unsigned int id;
3229 	const char *s;
3230 } shortnames[] = {
3231 	{ PCI_DEVICE_ID_INTEL_82801AA_5, "Intel 82801AA-ICH" },
3232 	{ PCI_DEVICE_ID_INTEL_82801AB_5, "Intel 82901AB-ICH0" },
3233 	{ PCI_DEVICE_ID_INTEL_82801BA_4, "Intel 82801BA-ICH2" },
3234 	{ PCI_DEVICE_ID_INTEL_440MX, "Intel 440MX" },
3235 	{ PCI_DEVICE_ID_INTEL_82801CA_5, "Intel 82801CA-ICH3" },
3236 	{ PCI_DEVICE_ID_INTEL_82801DB_5, "Intel 82801DB-ICH4" },
3237 	{ PCI_DEVICE_ID_INTEL_82801EB_5, "Intel ICH5" },
3238 	{ PCI_DEVICE_ID_INTEL_ESB_5, "Intel 6300ESB" },
3239 	{ PCI_DEVICE_ID_INTEL_ICH6_18, "Intel ICH6" },
3240 	{ PCI_DEVICE_ID_INTEL_ICH7_20, "Intel ICH7" },
3241 	{ PCI_DEVICE_ID_INTEL_ESB2_14, "Intel ESB2" },
3242 	{ PCI_DEVICE_ID_SI_7012, "SiS SI7012" },
3243 	{ PCI_DEVICE_ID_NVIDIA_MCP1_AUDIO, "NVidia nForce" },
3244 	{ PCI_DEVICE_ID_NVIDIA_MCP2_AUDIO, "NVidia nForce2" },
3245 	{ PCI_DEVICE_ID_NVIDIA_MCP3_AUDIO, "NVidia nForce3" },
3246 	{ PCI_DEVICE_ID_NVIDIA_CK8S_AUDIO, "NVidia CK8S" },
3247 	{ PCI_DEVICE_ID_NVIDIA_CK804_AUDIO, "NVidia CK804" },
3248 	{ PCI_DEVICE_ID_NVIDIA_CK8_AUDIO, "NVidia CK8" },
3249 	{ 0x003a, "NVidia MCP04" },
3250 	{ 0x746d, "AMD AMD8111" },
3251 	{ 0x7445, "AMD AMD768" },
3252 	{ 0x5455, "ALi M5455" },
3253 	{ 0, NULL },
3254 };
3255 
3256 static struct snd_pci_quirk spdif_aclink_defaults[] = {
3257 	SND_PCI_QUIRK(0x147b, 0x1c1a, "ASUS KN8", 1),
3258 	{ } /* end */
3259 };
3260 
3261 /* look up white/black list for SPDIF over ac-link */
3262 static int check_default_spdif_aclink(struct pci_dev *pci)
3263 {
3264 	const struct snd_pci_quirk *w;
3265 
3266 	w = snd_pci_quirk_lookup(pci, spdif_aclink_defaults);
3267 	if (w) {
3268 		if (w->value)
3269 			snd_printdd(KERN_INFO
3270 				    "intel8x0: Using SPDIF over AC-Link for %s\n",
3271 				    snd_pci_quirk_name(w));
3272 		else
3273 			snd_printdd(KERN_INFO
3274 				    "intel8x0: Using integrated SPDIF DMA for %s\n",
3275 				    snd_pci_quirk_name(w));
3276 		return w->value;
3277 	}
3278 	return 0;
3279 }
3280 
3281 static int snd_intel8x0_probe(struct pci_dev *pci,
3282 			      const struct pci_device_id *pci_id)
3283 {
3284 	struct snd_card *card;
3285 	struct intel8x0 *chip;
3286 	int err;
3287 	struct shortname_table *name;
3288 
3289 	err = snd_card_create(index, id, THIS_MODULE, 0, &card);
3290 	if (err < 0)
3291 		return err;
3292 
3293 	if (spdif_aclink < 0)
3294 		spdif_aclink = check_default_spdif_aclink(pci);
3295 
3296 	strcpy(card->driver, "ICH");
3297 	if (!spdif_aclink) {
3298 		switch (pci_id->driver_data) {
3299 		case DEVICE_NFORCE:
3300 			strcpy(card->driver, "NFORCE");
3301 			break;
3302 		case DEVICE_INTEL_ICH4:
3303 			strcpy(card->driver, "ICH4");
3304 		}
3305 	}
3306 
3307 	strcpy(card->shortname, "Intel ICH");
3308 	for (name = shortnames; name->id; name++) {
3309 		if (pci->device == name->id) {
3310 			strcpy(card->shortname, name->s);
3311 			break;
3312 		}
3313 	}
3314 
3315 	if (buggy_irq < 0) {
3316 		/* some Nforce[2] and ICH boards have problems with IRQ handling.
3317 		 * Needs to return IRQ_HANDLED for unknown irqs.
3318 		 */
3319 		if (pci_id->driver_data == DEVICE_NFORCE)
3320 			buggy_irq = 1;
3321 		else
3322 			buggy_irq = 0;
3323 	}
3324 
3325 	if ((err = snd_intel8x0_create(card, pci, pci_id->driver_data,
3326 				       &chip)) < 0) {
3327 		snd_card_free(card);
3328 		return err;
3329 	}
3330 	card->private_data = chip;
3331 
3332 	if ((err = snd_intel8x0_mixer(chip, ac97_clock, ac97_quirk)) < 0) {
3333 		snd_card_free(card);
3334 		return err;
3335 	}
3336 	if ((err = snd_intel8x0_pcm(chip)) < 0) {
3337 		snd_card_free(card);
3338 		return err;
3339 	}
3340 
3341 	snd_intel8x0_proc_init(chip);
3342 
3343 	snprintf(card->longname, sizeof(card->longname),
3344 		 "%s with %s at irq %i", card->shortname,
3345 		 snd_ac97_get_short_name(chip->ac97[0]), chip->irq);
3346 
3347 	if (ac97_clock == 0 || ac97_clock == 1) {
3348 		if (ac97_clock == 0) {
3349 			if (intel8x0_in_clock_list(chip) == 0)
3350 				intel8x0_measure_ac97_clock(chip);
3351 		} else {
3352 			intel8x0_measure_ac97_clock(chip);
3353 		}
3354 	}
3355 
3356 	if ((err = snd_card_register(card)) < 0) {
3357 		snd_card_free(card);
3358 		return err;
3359 	}
3360 	pci_set_drvdata(pci, card);
3361 	return 0;
3362 }
3363 
3364 static void snd_intel8x0_remove(struct pci_dev *pci)
3365 {
3366 	snd_card_free(pci_get_drvdata(pci));
3367 	pci_set_drvdata(pci, NULL);
3368 }
3369 
3370 static struct pci_driver intel8x0_driver = {
3371 	.name = KBUILD_MODNAME,
3372 	.id_table = snd_intel8x0_ids,
3373 	.probe = snd_intel8x0_probe,
3374 	.remove = snd_intel8x0_remove,
3375 	.driver = {
3376 		.pm = INTEL8X0_PM_OPS,
3377 	},
3378 };
3379 
3380 module_pci_driver(intel8x0_driver);
3381