xref: /openbmc/linux/sound/pci/intel8x0.c (revision 78700c0a)
1 /*
2  *   ALSA driver for Intel ICH (i8x0) chipsets
3  *
4  *	Copyright (c) 2000 Jaroslav Kysela <perex@perex.cz>
5  *
6  *
7  *   This code also contains alpha support for SiS 735 chipsets provided
8  *   by Mike Pieper <mptei@users.sourceforge.net>. We have no datasheet
9  *   for SiS735, so the code is not fully functional.
10  *
11  *
12  *   This program is free software; you can redistribute it and/or modify
13  *   it under the terms of the GNU General Public License as published by
14  *   the Free Software Foundation; either version 2 of the License, or
15  *   (at your option) any later version.
16  *
17  *   This program is distributed in the hope that it will be useful,
18  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
19  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
20  *   GNU General Public License for more details.
21  *
22  *   You should have received a copy of the GNU General Public License
23  *   along with this program; if not, write to the Free Software
24  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
25 
26  *
27  */
28 
29 #include <linux/io.h>
30 #include <linux/delay.h>
31 #include <linux/interrupt.h>
32 #include <linux/init.h>
33 #include <linux/pci.h>
34 #include <linux/slab.h>
35 #include <linux/module.h>
36 #include <sound/core.h>
37 #include <sound/pcm.h>
38 #include <sound/ac97_codec.h>
39 #include <sound/info.h>
40 #include <sound/initval.h>
41 /* for 440MX workaround */
42 #include <asm/pgtable.h>
43 #include <asm/cacheflush.h>
44 
45 MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
46 MODULE_DESCRIPTION("Intel 82801AA,82901AB,i810,i820,i830,i840,i845,MX440; SiS 7012; Ali 5455");
47 MODULE_LICENSE("GPL");
48 MODULE_SUPPORTED_DEVICE("{{Intel,82801AA-ICH},"
49 		"{Intel,82901AB-ICH0},"
50 		"{Intel,82801BA-ICH2},"
51 		"{Intel,82801CA-ICH3},"
52 		"{Intel,82801DB-ICH4},"
53 		"{Intel,ICH5},"
54 		"{Intel,ICH6},"
55 		"{Intel,ICH7},"
56 		"{Intel,6300ESB},"
57 		"{Intel,ESB2},"
58 		"{Intel,MX440},"
59 		"{SiS,SI7012},"
60 		"{NVidia,nForce Audio},"
61 		"{NVidia,nForce2 Audio},"
62 		"{NVidia,nForce3 Audio},"
63 		"{NVidia,MCP04},"
64 		"{NVidia,MCP501},"
65 		"{NVidia,CK804},"
66 		"{NVidia,CK8},"
67 		"{NVidia,CK8S},"
68 		"{AMD,AMD768},"
69 		"{AMD,AMD8111},"
70 	        "{ALI,M5455}}");
71 
72 static int index = SNDRV_DEFAULT_IDX1;	/* Index 0-MAX */
73 static char *id = SNDRV_DEFAULT_STR1;	/* ID for this card */
74 static int ac97_clock;
75 static char *ac97_quirk;
76 static bool buggy_semaphore;
77 static int buggy_irq = -1; /* auto-check */
78 static bool xbox;
79 static int spdif_aclink = -1;
80 static int inside_vm = -1;
81 
82 module_param(index, int, 0444);
83 MODULE_PARM_DESC(index, "Index value for Intel i8x0 soundcard.");
84 module_param(id, charp, 0444);
85 MODULE_PARM_DESC(id, "ID string for Intel i8x0 soundcard.");
86 module_param(ac97_clock, int, 0444);
87 MODULE_PARM_DESC(ac97_clock, "AC'97 codec clock (0 = whitelist + auto-detect, 1 = force autodetect).");
88 module_param(ac97_quirk, charp, 0444);
89 MODULE_PARM_DESC(ac97_quirk, "AC'97 workaround for strange hardware.");
90 module_param(buggy_semaphore, bool, 0444);
91 MODULE_PARM_DESC(buggy_semaphore, "Enable workaround for hardwares with problematic codec semaphores.");
92 module_param(buggy_irq, bint, 0444);
93 MODULE_PARM_DESC(buggy_irq, "Enable workaround for buggy interrupts on some motherboards.");
94 module_param(xbox, bool, 0444);
95 MODULE_PARM_DESC(xbox, "Set to 1 for Xbox, if you have problems with the AC'97 codec detection.");
96 module_param(spdif_aclink, int, 0444);
97 MODULE_PARM_DESC(spdif_aclink, "S/PDIF over AC-link.");
98 module_param(inside_vm, bint, 0444);
99 MODULE_PARM_DESC(inside_vm, "KVM/Parallels optimization.");
100 
101 /* just for backward compatibility */
102 static bool enable;
103 module_param(enable, bool, 0444);
104 static int joystick;
105 module_param(joystick, int, 0444);
106 
107 /*
108  *  Direct registers
109  */
110 enum { DEVICE_INTEL, DEVICE_INTEL_ICH4, DEVICE_SIS, DEVICE_ALI, DEVICE_NFORCE };
111 
112 #define ICHREG(x) ICH_REG_##x
113 
114 #define DEFINE_REGSET(name,base) \
115 enum { \
116 	ICH_REG_##name##_BDBAR	= base + 0x0,	/* dword - buffer descriptor list base address */ \
117 	ICH_REG_##name##_CIV	= base + 0x04,	/* byte - current index value */ \
118 	ICH_REG_##name##_LVI	= base + 0x05,	/* byte - last valid index */ \
119 	ICH_REG_##name##_SR	= base + 0x06,	/* byte - status register */ \
120 	ICH_REG_##name##_PICB	= base + 0x08,	/* word - position in current buffer */ \
121 	ICH_REG_##name##_PIV	= base + 0x0a,	/* byte - prefetched index value */ \
122 	ICH_REG_##name##_CR	= base + 0x0b,	/* byte - control register */ \
123 };
124 
125 /* busmaster blocks */
126 DEFINE_REGSET(OFF, 0);		/* offset */
127 DEFINE_REGSET(PI, 0x00);	/* PCM in */
128 DEFINE_REGSET(PO, 0x10);	/* PCM out */
129 DEFINE_REGSET(MC, 0x20);	/* Mic in */
130 
131 /* ICH4 busmaster blocks */
132 DEFINE_REGSET(MC2, 0x40);	/* Mic in 2 */
133 DEFINE_REGSET(PI2, 0x50);	/* PCM in 2 */
134 DEFINE_REGSET(SP, 0x60);	/* SPDIF out */
135 
136 /* values for each busmaster block */
137 
138 /* LVI */
139 #define ICH_REG_LVI_MASK		0x1f
140 
141 /* SR */
142 #define ICH_FIFOE			0x10	/* FIFO error */
143 #define ICH_BCIS			0x08	/* buffer completion interrupt status */
144 #define ICH_LVBCI			0x04	/* last valid buffer completion interrupt */
145 #define ICH_CELV			0x02	/* current equals last valid */
146 #define ICH_DCH				0x01	/* DMA controller halted */
147 
148 /* PIV */
149 #define ICH_REG_PIV_MASK		0x1f	/* mask */
150 
151 /* CR */
152 #define ICH_IOCE			0x10	/* interrupt on completion enable */
153 #define ICH_FEIE			0x08	/* fifo error interrupt enable */
154 #define ICH_LVBIE			0x04	/* last valid buffer interrupt enable */
155 #define ICH_RESETREGS			0x02	/* reset busmaster registers */
156 #define ICH_STARTBM			0x01	/* start busmaster operation */
157 
158 
159 /* global block */
160 #define ICH_REG_GLOB_CNT		0x2c	/* dword - global control */
161 #define   ICH_PCM_SPDIF_MASK	0xc0000000	/* s/pdif pcm slot mask (ICH4) */
162 #define   ICH_PCM_SPDIF_NONE	0x00000000	/* reserved - undefined */
163 #define   ICH_PCM_SPDIF_78	0x40000000	/* s/pdif pcm on slots 7&8 */
164 #define   ICH_PCM_SPDIF_69	0x80000000	/* s/pdif pcm on slots 6&9 */
165 #define   ICH_PCM_SPDIF_1011	0xc0000000	/* s/pdif pcm on slots 10&11 */
166 #define   ICH_PCM_20BIT		0x00400000	/* 20-bit samples (ICH4) */
167 #define   ICH_PCM_246_MASK	0x00300000	/* chan mask (not all chips) */
168 #define   ICH_PCM_8		0x00300000      /* 8 channels (not all chips) */
169 #define   ICH_PCM_6		0x00200000	/* 6 channels (not all chips) */
170 #define   ICH_PCM_4		0x00100000	/* 4 channels (not all chips) */
171 #define   ICH_PCM_2		0x00000000	/* 2 channels (stereo) */
172 #define   ICH_SIS_PCM_246_MASK	0x000000c0	/* 6 channels (SIS7012) */
173 #define   ICH_SIS_PCM_6		0x00000080	/* 6 channels (SIS7012) */
174 #define   ICH_SIS_PCM_4		0x00000040	/* 4 channels (SIS7012) */
175 #define   ICH_SIS_PCM_2		0x00000000	/* 2 channels (SIS7012) */
176 #define   ICH_TRIE		0x00000040	/* tertiary resume interrupt enable */
177 #define   ICH_SRIE		0x00000020	/* secondary resume interrupt enable */
178 #define   ICH_PRIE		0x00000010	/* primary resume interrupt enable */
179 #define   ICH_ACLINK		0x00000008	/* AClink shut off */
180 #define   ICH_AC97WARM		0x00000004	/* AC'97 warm reset */
181 #define   ICH_AC97COLD		0x00000002	/* AC'97 cold reset */
182 #define   ICH_GIE		0x00000001	/* GPI interrupt enable */
183 #define ICH_REG_GLOB_STA		0x30	/* dword - global status */
184 #define   ICH_TRI		0x20000000	/* ICH4: tertiary (AC_SDIN2) resume interrupt */
185 #define   ICH_TCR		0x10000000	/* ICH4: tertiary (AC_SDIN2) codec ready */
186 #define   ICH_BCS		0x08000000	/* ICH4: bit clock stopped */
187 #define   ICH_SPINT		0x04000000	/* ICH4: S/PDIF interrupt */
188 #define   ICH_P2INT		0x02000000	/* ICH4: PCM2-In interrupt */
189 #define   ICH_M2INT		0x01000000	/* ICH4: Mic2-In interrupt */
190 #define   ICH_SAMPLE_CAP	0x00c00000	/* ICH4: sample capability bits (RO) */
191 #define   ICH_SAMPLE_16_20	0x00400000	/* ICH4: 16- and 20-bit samples */
192 #define   ICH_MULTICHAN_CAP	0x00300000	/* ICH4: multi-channel capability bits (RO) */
193 #define   ICH_SIS_TRI		0x00080000	/* SIS: tertiary resume irq */
194 #define   ICH_SIS_TCR		0x00040000	/* SIS: tertiary codec ready */
195 #define   ICH_MD3		0x00020000	/* modem power down semaphore */
196 #define   ICH_AD3		0x00010000	/* audio power down semaphore */
197 #define   ICH_RCS		0x00008000	/* read completion status */
198 #define   ICH_BIT3		0x00004000	/* bit 3 slot 12 */
199 #define   ICH_BIT2		0x00002000	/* bit 2 slot 12 */
200 #define   ICH_BIT1		0x00001000	/* bit 1 slot 12 */
201 #define   ICH_SRI		0x00000800	/* secondary (AC_SDIN1) resume interrupt */
202 #define   ICH_PRI		0x00000400	/* primary (AC_SDIN0) resume interrupt */
203 #define   ICH_SCR		0x00000200	/* secondary (AC_SDIN1) codec ready */
204 #define   ICH_PCR		0x00000100	/* primary (AC_SDIN0) codec ready */
205 #define   ICH_MCINT		0x00000080	/* MIC capture interrupt */
206 #define   ICH_POINT		0x00000040	/* playback interrupt */
207 #define   ICH_PIINT		0x00000020	/* capture interrupt */
208 #define   ICH_NVSPINT		0x00000010	/* nforce spdif interrupt */
209 #define   ICH_MOINT		0x00000004	/* modem playback interrupt */
210 #define   ICH_MIINT		0x00000002	/* modem capture interrupt */
211 #define   ICH_GSCI		0x00000001	/* GPI status change interrupt */
212 #define ICH_REG_ACC_SEMA		0x34	/* byte - codec write semaphore */
213 #define   ICH_CAS		0x01		/* codec access semaphore */
214 #define ICH_REG_SDM		0x80
215 #define   ICH_DI2L_MASK		0x000000c0	/* PCM In 2, Mic In 2 data in line */
216 #define   ICH_DI2L_SHIFT	6
217 #define   ICH_DI1L_MASK		0x00000030	/* PCM In 1, Mic In 1 data in line */
218 #define   ICH_DI1L_SHIFT	4
219 #define   ICH_SE		0x00000008	/* steer enable */
220 #define   ICH_LDI_MASK		0x00000003	/* last codec read data input */
221 
222 #define ICH_MAX_FRAGS		32		/* max hw frags */
223 
224 
225 /*
226  * registers for Ali5455
227  */
228 
229 /* ALi 5455 busmaster blocks */
230 DEFINE_REGSET(AL_PI, 0x40);	/* ALi PCM in */
231 DEFINE_REGSET(AL_PO, 0x50);	/* Ali PCM out */
232 DEFINE_REGSET(AL_MC, 0x60);	/* Ali Mic in */
233 DEFINE_REGSET(AL_CDC_SPO, 0x70);	/* Ali Codec SPDIF out */
234 DEFINE_REGSET(AL_CENTER, 0x80);		/* Ali center out */
235 DEFINE_REGSET(AL_LFE, 0x90);		/* Ali center out */
236 DEFINE_REGSET(AL_CLR_SPI, 0xa0);	/* Ali Controller SPDIF in */
237 DEFINE_REGSET(AL_CLR_SPO, 0xb0);	/* Ali Controller SPDIF out */
238 DEFINE_REGSET(AL_I2S, 0xc0);	/* Ali I2S in */
239 DEFINE_REGSET(AL_PI2, 0xd0);	/* Ali PCM2 in */
240 DEFINE_REGSET(AL_MC2, 0xe0);	/* Ali Mic2 in */
241 
242 enum {
243 	ICH_REG_ALI_SCR = 0x00,		/* System Control Register */
244 	ICH_REG_ALI_SSR = 0x04,		/* System Status Register  */
245 	ICH_REG_ALI_DMACR = 0x08,	/* DMA Control Register    */
246 	ICH_REG_ALI_FIFOCR1 = 0x0c,	/* FIFO Control Register 1  */
247 	ICH_REG_ALI_INTERFACECR = 0x10,	/* Interface Control Register */
248 	ICH_REG_ALI_INTERRUPTCR = 0x14,	/* Interrupt control Register */
249 	ICH_REG_ALI_INTERRUPTSR = 0x18,	/* Interrupt  Status Register */
250 	ICH_REG_ALI_FIFOCR2 = 0x1c,	/* FIFO Control Register 2   */
251 	ICH_REG_ALI_CPR = 0x20,		/* Command Port Register     */
252 	ICH_REG_ALI_CPR_ADDR = 0x22,	/* ac97 addr write */
253 	ICH_REG_ALI_SPR = 0x24,		/* Status Port Register      */
254 	ICH_REG_ALI_SPR_ADDR = 0x26,	/* ac97 addr read */
255 	ICH_REG_ALI_FIFOCR3 = 0x2c,	/* FIFO Control Register 3  */
256 	ICH_REG_ALI_TTSR = 0x30,	/* Transmit Tag Slot Register */
257 	ICH_REG_ALI_RTSR = 0x34,	/* Receive Tag Slot  Register */
258 	ICH_REG_ALI_CSPSR = 0x38,	/* Command/Status Port Status Register */
259 	ICH_REG_ALI_CAS = 0x3c,		/* Codec Write Semaphore Register */
260 	ICH_REG_ALI_HWVOL = 0xf0,	/* hardware volume control/status */
261 	ICH_REG_ALI_I2SCR = 0xf4,	/* I2S control/status */
262 	ICH_REG_ALI_SPDIFCSR = 0xf8,	/* spdif channel status register  */
263 	ICH_REG_ALI_SPDIFICS = 0xfc,	/* spdif interface control/status  */
264 };
265 
266 #define ALI_CAS_SEM_BUSY	0x80000000
267 #define ALI_CPR_ADDR_SECONDARY	0x100
268 #define ALI_CPR_ADDR_READ	0x80
269 #define ALI_CSPSR_CODEC_READY	0x08
270 #define ALI_CSPSR_READ_OK	0x02
271 #define ALI_CSPSR_WRITE_OK	0x01
272 
273 /* interrupts for the whole chip by interrupt status register finish */
274 
275 #define ALI_INT_MICIN2		(1<<26)
276 #define ALI_INT_PCMIN2		(1<<25)
277 #define ALI_INT_I2SIN		(1<<24)
278 #define ALI_INT_SPDIFOUT	(1<<23)	/* controller spdif out INTERRUPT */
279 #define ALI_INT_SPDIFIN		(1<<22)
280 #define ALI_INT_LFEOUT		(1<<21)
281 #define ALI_INT_CENTEROUT	(1<<20)
282 #define ALI_INT_CODECSPDIFOUT	(1<<19)
283 #define ALI_INT_MICIN		(1<<18)
284 #define ALI_INT_PCMOUT		(1<<17)
285 #define ALI_INT_PCMIN		(1<<16)
286 #define ALI_INT_CPRAIS		(1<<7)	/* command port available */
287 #define ALI_INT_SPRAIS		(1<<5)	/* status port available */
288 #define ALI_INT_GPIO		(1<<1)
289 #define ALI_INT_MASK		(ALI_INT_SPDIFOUT|ALI_INT_CODECSPDIFOUT|\
290 				 ALI_INT_MICIN|ALI_INT_PCMOUT|ALI_INT_PCMIN)
291 
292 #define ICH_ALI_SC_RESET	(1<<31)	/* master reset */
293 #define ICH_ALI_SC_AC97_DBL	(1<<30)
294 #define ICH_ALI_SC_CODEC_SPDF	(3<<20)	/* 1=7/8, 2=6/9, 3=10/11 */
295 #define ICH_ALI_SC_IN_BITS	(3<<18)
296 #define ICH_ALI_SC_OUT_BITS	(3<<16)
297 #define ICH_ALI_SC_6CH_CFG	(3<<14)
298 #define ICH_ALI_SC_PCM_4	(1<<8)
299 #define ICH_ALI_SC_PCM_6	(2<<8)
300 #define ICH_ALI_SC_PCM_246_MASK	(3<<8)
301 
302 #define ICH_ALI_SS_SEC_ID	(3<<5)
303 #define ICH_ALI_SS_PRI_ID	(3<<3)
304 
305 #define ICH_ALI_IF_AC97SP	(1<<21)
306 #define ICH_ALI_IF_MC		(1<<20)
307 #define ICH_ALI_IF_PI		(1<<19)
308 #define ICH_ALI_IF_MC2		(1<<18)
309 #define ICH_ALI_IF_PI2		(1<<17)
310 #define ICH_ALI_IF_LINE_SRC	(1<<15)	/* 0/1 = slot 3/6 */
311 #define ICH_ALI_IF_MIC_SRC	(1<<14)	/* 0/1 = slot 3/6 */
312 #define ICH_ALI_IF_SPDF_SRC	(3<<12)	/* 00 = PCM, 01 = AC97-in, 10 = spdif-in, 11 = i2s */
313 #define ICH_ALI_IF_AC97_OUT	(3<<8)	/* 00 = PCM, 10 = spdif-in, 11 = i2s */
314 #define ICH_ALI_IF_PO_SPDF	(1<<3)
315 #define ICH_ALI_IF_PO		(1<<1)
316 
317 /*
318  *
319  */
320 
321 enum {
322 	ICHD_PCMIN,
323 	ICHD_PCMOUT,
324 	ICHD_MIC,
325 	ICHD_MIC2,
326 	ICHD_PCM2IN,
327 	ICHD_SPBAR,
328 	ICHD_LAST = ICHD_SPBAR
329 };
330 enum {
331 	NVD_PCMIN,
332 	NVD_PCMOUT,
333 	NVD_MIC,
334 	NVD_SPBAR,
335 	NVD_LAST = NVD_SPBAR
336 };
337 enum {
338 	ALID_PCMIN,
339 	ALID_PCMOUT,
340 	ALID_MIC,
341 	ALID_AC97SPDIFOUT,
342 	ALID_SPDIFIN,
343 	ALID_SPDIFOUT,
344 	ALID_LAST = ALID_SPDIFOUT
345 };
346 
347 #define get_ichdev(substream) (substream->runtime->private_data)
348 
349 struct ichdev {
350 	unsigned int ichd;			/* ich device number */
351 	unsigned long reg_offset;		/* offset to bmaddr */
352 	u32 *bdbar;				/* CPU address (32bit) */
353 	unsigned int bdbar_addr;		/* PCI bus address (32bit) */
354 	struct snd_pcm_substream *substream;
355 	unsigned int physbuf;			/* physical address (32bit) */
356         unsigned int size;
357         unsigned int fragsize;
358         unsigned int fragsize1;
359         unsigned int position;
360 	unsigned int pos_shift;
361 	unsigned int last_pos;
362         int frags;
363         int lvi;
364         int lvi_frag;
365 	int civ;
366 	int ack;
367 	int ack_reload;
368 	unsigned int ack_bit;
369 	unsigned int roff_sr;
370 	unsigned int roff_picb;
371 	unsigned int int_sta_mask;		/* interrupt status mask */
372 	unsigned int ali_slot;			/* ALI DMA slot */
373 	struct ac97_pcm *pcm;
374 	int pcm_open_flag;
375 	unsigned int page_attr_changed: 1;
376 	unsigned int suspended: 1;
377 };
378 
379 struct intel8x0 {
380 	unsigned int device_type;
381 
382 	int irq;
383 
384 	void __iomem *addr;
385 	void __iomem *bmaddr;
386 
387 	struct pci_dev *pci;
388 	struct snd_card *card;
389 
390 	int pcm_devs;
391 	struct snd_pcm *pcm[6];
392 	struct ichdev ichd[6];
393 
394 	unsigned multi4: 1,
395 		 multi6: 1,
396 		 multi8 :1,
397 		 dra: 1,
398 		 smp20bit: 1;
399 	unsigned in_ac97_init: 1,
400 		 in_sdin_init: 1;
401 	unsigned in_measurement: 1;	/* during ac97 clock measurement */
402 	unsigned fix_nocache: 1; 	/* workaround for 440MX */
403 	unsigned buggy_irq: 1;		/* workaround for buggy mobos */
404 	unsigned xbox: 1;		/* workaround for Xbox AC'97 detection */
405 	unsigned buggy_semaphore: 1;	/* workaround for buggy codec semaphore */
406 	unsigned inside_vm: 1;		/* enable VM optimization */
407 
408 	int spdif_idx;	/* SPDIF BAR index; *_SPBAR or -1 if use PCMOUT */
409 	unsigned int sdm_saved;	/* SDM reg value */
410 
411 	struct snd_ac97_bus *ac97_bus;
412 	struct snd_ac97 *ac97[3];
413 	unsigned int ac97_sdin[3];
414 	unsigned int max_codecs, ncodecs;
415 	unsigned int *codec_bit;
416 	unsigned int codec_isr_bits;
417 	unsigned int codec_ready_bits;
418 
419 	spinlock_t reg_lock;
420 
421 	u32 bdbars_count;
422 	struct snd_dma_buffer bdbars;
423 	u32 int_sta_reg;		/* interrupt status register */
424 	u32 int_sta_mask;		/* interrupt status mask */
425 };
426 
427 static const struct pci_device_id snd_intel8x0_ids[] = {
428 	{ PCI_VDEVICE(INTEL, 0x2415), DEVICE_INTEL },	/* 82801AA */
429 	{ PCI_VDEVICE(INTEL, 0x2425), DEVICE_INTEL },	/* 82901AB */
430 	{ PCI_VDEVICE(INTEL, 0x2445), DEVICE_INTEL },	/* 82801BA */
431 	{ PCI_VDEVICE(INTEL, 0x2485), DEVICE_INTEL },	/* ICH3 */
432 	{ PCI_VDEVICE(INTEL, 0x24c5), DEVICE_INTEL_ICH4 }, /* ICH4 */
433 	{ PCI_VDEVICE(INTEL, 0x24d5), DEVICE_INTEL_ICH4 }, /* ICH5 */
434 	{ PCI_VDEVICE(INTEL, 0x25a6), DEVICE_INTEL_ICH4 }, /* ESB */
435 	{ PCI_VDEVICE(INTEL, 0x266e), DEVICE_INTEL_ICH4 }, /* ICH6 */
436 	{ PCI_VDEVICE(INTEL, 0x27de), DEVICE_INTEL_ICH4 }, /* ICH7 */
437 	{ PCI_VDEVICE(INTEL, 0x2698), DEVICE_INTEL_ICH4 }, /* ESB2 */
438 	{ PCI_VDEVICE(INTEL, 0x7195), DEVICE_INTEL },	/* 440MX */
439 	{ PCI_VDEVICE(SI, 0x7012), DEVICE_SIS },	/* SI7012 */
440 	{ PCI_VDEVICE(NVIDIA, 0x01b1), DEVICE_NFORCE },	/* NFORCE */
441 	{ PCI_VDEVICE(NVIDIA, 0x003a), DEVICE_NFORCE },	/* MCP04 */
442 	{ PCI_VDEVICE(NVIDIA, 0x006a), DEVICE_NFORCE },	/* NFORCE2 */
443 	{ PCI_VDEVICE(NVIDIA, 0x0059), DEVICE_NFORCE },	/* CK804 */
444 	{ PCI_VDEVICE(NVIDIA, 0x008a), DEVICE_NFORCE },	/* CK8 */
445 	{ PCI_VDEVICE(NVIDIA, 0x00da), DEVICE_NFORCE },	/* NFORCE3 */
446 	{ PCI_VDEVICE(NVIDIA, 0x00ea), DEVICE_NFORCE },	/* CK8S */
447 	{ PCI_VDEVICE(NVIDIA, 0x026b), DEVICE_NFORCE },	/* MCP51 */
448 	{ PCI_VDEVICE(AMD, 0x746d), DEVICE_INTEL },	/* AMD8111 */
449 	{ PCI_VDEVICE(AMD, 0x7445), DEVICE_INTEL },	/* AMD768 */
450 	{ PCI_VDEVICE(AL, 0x5455), DEVICE_ALI },   /* Ali5455 */
451 	{ 0, }
452 };
453 
454 MODULE_DEVICE_TABLE(pci, snd_intel8x0_ids);
455 
456 /*
457  *  Lowlevel I/O - busmaster
458  */
459 
460 static inline u8 igetbyte(struct intel8x0 *chip, u32 offset)
461 {
462 	return ioread8(chip->bmaddr + offset);
463 }
464 
465 static inline u16 igetword(struct intel8x0 *chip, u32 offset)
466 {
467 	return ioread16(chip->bmaddr + offset);
468 }
469 
470 static inline u32 igetdword(struct intel8x0 *chip, u32 offset)
471 {
472 	return ioread32(chip->bmaddr + offset);
473 }
474 
475 static inline void iputbyte(struct intel8x0 *chip, u32 offset, u8 val)
476 {
477 	iowrite8(val, chip->bmaddr + offset);
478 }
479 
480 static inline void iputword(struct intel8x0 *chip, u32 offset, u16 val)
481 {
482 	iowrite16(val, chip->bmaddr + offset);
483 }
484 
485 static inline void iputdword(struct intel8x0 *chip, u32 offset, u32 val)
486 {
487 	iowrite32(val, chip->bmaddr + offset);
488 }
489 
490 /*
491  *  Lowlevel I/O - AC'97 registers
492  */
493 
494 static inline u16 iagetword(struct intel8x0 *chip, u32 offset)
495 {
496 	return ioread16(chip->addr + offset);
497 }
498 
499 static inline void iaputword(struct intel8x0 *chip, u32 offset, u16 val)
500 {
501 	iowrite16(val, chip->addr + offset);
502 }
503 
504 /*
505  *  Basic I/O
506  */
507 
508 /*
509  * access to AC97 codec via normal i/o (for ICH and SIS7012)
510  */
511 
512 static int snd_intel8x0_codec_semaphore(struct intel8x0 *chip, unsigned int codec)
513 {
514 	int time;
515 
516 	if (codec > 2)
517 		return -EIO;
518 	if (chip->in_sdin_init) {
519 		/* we don't know the ready bit assignment at the moment */
520 		/* so we check any */
521 		codec = chip->codec_isr_bits;
522 	} else {
523 		codec = chip->codec_bit[chip->ac97_sdin[codec]];
524 	}
525 
526 	/* codec ready ? */
527 	if ((igetdword(chip, ICHREG(GLOB_STA)) & codec) == 0)
528 		return -EIO;
529 
530 	if (chip->buggy_semaphore)
531 		return 0; /* just ignore ... */
532 
533 	/* Anyone holding a semaphore for 1 msec should be shot... */
534 	time = 100;
535       	do {
536       		if (!(igetbyte(chip, ICHREG(ACC_SEMA)) & ICH_CAS))
537       			return 0;
538 		udelay(10);
539 	} while (time--);
540 
541 	/* access to some forbidden (non existent) ac97 registers will not
542 	 * reset the semaphore. So even if you don't get the semaphore, still
543 	 * continue the access. We don't need the semaphore anyway. */
544 	dev_err(chip->card->dev,
545 		"codec_semaphore: semaphore is not ready [0x%x][0x%x]\n",
546 			igetbyte(chip, ICHREG(ACC_SEMA)), igetdword(chip, ICHREG(GLOB_STA)));
547 	iagetword(chip, 0);	/* clear semaphore flag */
548 	/* I don't care about the semaphore */
549 	return -EBUSY;
550 }
551 
552 static void snd_intel8x0_codec_write(struct snd_ac97 *ac97,
553 				     unsigned short reg,
554 				     unsigned short val)
555 {
556 	struct intel8x0 *chip = ac97->private_data;
557 
558 	if (snd_intel8x0_codec_semaphore(chip, ac97->num) < 0) {
559 		if (! chip->in_ac97_init)
560 			dev_err(chip->card->dev,
561 				"codec_write %d: semaphore is not ready for register 0x%x\n",
562 				ac97->num, reg);
563 	}
564 	iaputword(chip, reg + ac97->num * 0x80, val);
565 }
566 
567 static unsigned short snd_intel8x0_codec_read(struct snd_ac97 *ac97,
568 					      unsigned short reg)
569 {
570 	struct intel8x0 *chip = ac97->private_data;
571 	unsigned short res;
572 	unsigned int tmp;
573 
574 	if (snd_intel8x0_codec_semaphore(chip, ac97->num) < 0) {
575 		if (! chip->in_ac97_init)
576 			dev_err(chip->card->dev,
577 				"codec_read %d: semaphore is not ready for register 0x%x\n",
578 				ac97->num, reg);
579 		res = 0xffff;
580 	} else {
581 		res = iagetword(chip, reg + ac97->num * 0x80);
582 		if ((tmp = igetdword(chip, ICHREG(GLOB_STA))) & ICH_RCS) {
583 			/* reset RCS and preserve other R/WC bits */
584 			iputdword(chip, ICHREG(GLOB_STA), tmp &
585 				  ~(chip->codec_ready_bits | ICH_GSCI));
586 			if (! chip->in_ac97_init)
587 				dev_err(chip->card->dev,
588 					"codec_read %d: read timeout for register 0x%x\n",
589 					ac97->num, reg);
590 			res = 0xffff;
591 		}
592 	}
593 	return res;
594 }
595 
596 static void snd_intel8x0_codec_read_test(struct intel8x0 *chip,
597 					 unsigned int codec)
598 {
599 	unsigned int tmp;
600 
601 	if (snd_intel8x0_codec_semaphore(chip, codec) >= 0) {
602 		iagetword(chip, codec * 0x80);
603 		if ((tmp = igetdword(chip, ICHREG(GLOB_STA))) & ICH_RCS) {
604 			/* reset RCS and preserve other R/WC bits */
605 			iputdword(chip, ICHREG(GLOB_STA), tmp &
606 				  ~(chip->codec_ready_bits | ICH_GSCI));
607 		}
608 	}
609 }
610 
611 /*
612  * access to AC97 for Ali5455
613  */
614 static int snd_intel8x0_ali_codec_ready(struct intel8x0 *chip, int mask)
615 {
616 	int count = 0;
617 	for (count = 0; count < 0x7f; count++) {
618 		int val = igetbyte(chip, ICHREG(ALI_CSPSR));
619 		if (val & mask)
620 			return 0;
621 	}
622 	if (! chip->in_ac97_init)
623 		dev_warn(chip->card->dev, "AC97 codec ready timeout.\n");
624 	return -EBUSY;
625 }
626 
627 static int snd_intel8x0_ali_codec_semaphore(struct intel8x0 *chip)
628 {
629 	int time = 100;
630 	if (chip->buggy_semaphore)
631 		return 0; /* just ignore ... */
632 	while (--time && (igetdword(chip, ICHREG(ALI_CAS)) & ALI_CAS_SEM_BUSY))
633 		udelay(1);
634 	if (! time && ! chip->in_ac97_init)
635 		dev_warn(chip->card->dev, "ali_codec_semaphore timeout\n");
636 	return snd_intel8x0_ali_codec_ready(chip, ALI_CSPSR_CODEC_READY);
637 }
638 
639 static unsigned short snd_intel8x0_ali_codec_read(struct snd_ac97 *ac97, unsigned short reg)
640 {
641 	struct intel8x0 *chip = ac97->private_data;
642 	unsigned short data = 0xffff;
643 
644 	if (snd_intel8x0_ali_codec_semaphore(chip))
645 		goto __err;
646 	reg |= ALI_CPR_ADDR_READ;
647 	if (ac97->num)
648 		reg |= ALI_CPR_ADDR_SECONDARY;
649 	iputword(chip, ICHREG(ALI_CPR_ADDR), reg);
650 	if (snd_intel8x0_ali_codec_ready(chip, ALI_CSPSR_READ_OK))
651 		goto __err;
652 	data = igetword(chip, ICHREG(ALI_SPR));
653  __err:
654 	return data;
655 }
656 
657 static void snd_intel8x0_ali_codec_write(struct snd_ac97 *ac97, unsigned short reg,
658 					 unsigned short val)
659 {
660 	struct intel8x0 *chip = ac97->private_data;
661 
662 	if (snd_intel8x0_ali_codec_semaphore(chip))
663 		return;
664 	iputword(chip, ICHREG(ALI_CPR), val);
665 	if (ac97->num)
666 		reg |= ALI_CPR_ADDR_SECONDARY;
667 	iputword(chip, ICHREG(ALI_CPR_ADDR), reg);
668 	snd_intel8x0_ali_codec_ready(chip, ALI_CSPSR_WRITE_OK);
669 }
670 
671 
672 /*
673  * DMA I/O
674  */
675 static void snd_intel8x0_setup_periods(struct intel8x0 *chip, struct ichdev *ichdev)
676 {
677 	int idx;
678 	u32 *bdbar = ichdev->bdbar;
679 	unsigned long port = ichdev->reg_offset;
680 
681 	iputdword(chip, port + ICH_REG_OFF_BDBAR, ichdev->bdbar_addr);
682 	if (ichdev->size == ichdev->fragsize) {
683 		ichdev->ack_reload = ichdev->ack = 2;
684 		ichdev->fragsize1 = ichdev->fragsize >> 1;
685 		for (idx = 0; idx < (ICH_REG_LVI_MASK + 1) * 2; idx += 4) {
686 			bdbar[idx + 0] = cpu_to_le32(ichdev->physbuf);
687 			bdbar[idx + 1] = cpu_to_le32(0x80000000 | /* interrupt on completion */
688 						     ichdev->fragsize1 >> ichdev->pos_shift);
689 			bdbar[idx + 2] = cpu_to_le32(ichdev->physbuf + (ichdev->size >> 1));
690 			bdbar[idx + 3] = cpu_to_le32(0x80000000 | /* interrupt on completion */
691 						     ichdev->fragsize1 >> ichdev->pos_shift);
692 		}
693 		ichdev->frags = 2;
694 	} else {
695 		ichdev->ack_reload = ichdev->ack = 1;
696 		ichdev->fragsize1 = ichdev->fragsize;
697 		for (idx = 0; idx < (ICH_REG_LVI_MASK + 1) * 2; idx += 2) {
698 			bdbar[idx + 0] = cpu_to_le32(ichdev->physbuf +
699 						     (((idx >> 1) * ichdev->fragsize) %
700 						      ichdev->size));
701 			bdbar[idx + 1] = cpu_to_le32(0x80000000 | /* interrupt on completion */
702 						     ichdev->fragsize >> ichdev->pos_shift);
703 #if 0
704 			dev_dbg(chip->card->dev, "bdbar[%i] = 0x%x [0x%x]\n",
705 			       idx + 0, bdbar[idx + 0], bdbar[idx + 1]);
706 #endif
707 		}
708 		ichdev->frags = ichdev->size / ichdev->fragsize;
709 	}
710 	iputbyte(chip, port + ICH_REG_OFF_LVI, ichdev->lvi = ICH_REG_LVI_MASK);
711 	ichdev->civ = 0;
712 	iputbyte(chip, port + ICH_REG_OFF_CIV, 0);
713 	ichdev->lvi_frag = ICH_REG_LVI_MASK % ichdev->frags;
714 	ichdev->position = 0;
715 #if 0
716 	dev_dbg(chip->card->dev,
717 		"lvi_frag = %i, frags = %i, period_size = 0x%x, period_size1 = 0x%x\n",
718 	       ichdev->lvi_frag, ichdev->frags, ichdev->fragsize,
719 	       ichdev->fragsize1);
720 #endif
721 	/* clear interrupts */
722 	iputbyte(chip, port + ichdev->roff_sr, ICH_FIFOE | ICH_BCIS | ICH_LVBCI);
723 }
724 
725 #ifdef __i386__
726 /*
727  * Intel 82443MX running a 100MHz processor system bus has a hardware bug,
728  * which aborts PCI busmaster for audio transfer.  A workaround is to set
729  * the pages as non-cached.  For details, see the errata in
730  *	http://download.intel.com/design/chipsets/specupdt/24505108.pdf
731  */
732 static void fill_nocache(void *buf, int size, int nocache)
733 {
734 	size = (size + PAGE_SIZE - 1) >> PAGE_SHIFT;
735 	if (nocache)
736 		set_pages_uc(virt_to_page(buf), size);
737 	else
738 		set_pages_wb(virt_to_page(buf), size);
739 }
740 #else
741 #define fill_nocache(buf, size, nocache) do { ; } while (0)
742 #endif
743 
744 /*
745  *  Interrupt handler
746  */
747 
748 static inline void snd_intel8x0_update(struct intel8x0 *chip, struct ichdev *ichdev)
749 {
750 	unsigned long port = ichdev->reg_offset;
751 	unsigned long flags;
752 	int status, civ, i, step;
753 	int ack = 0;
754 
755 	spin_lock_irqsave(&chip->reg_lock, flags);
756 	status = igetbyte(chip, port + ichdev->roff_sr);
757 	civ = igetbyte(chip, port + ICH_REG_OFF_CIV);
758 	if (!(status & ICH_BCIS)) {
759 		step = 0;
760 	} else if (civ == ichdev->civ) {
761 		// snd_printd("civ same %d\n", civ);
762 		step = 1;
763 		ichdev->civ++;
764 		ichdev->civ &= ICH_REG_LVI_MASK;
765 	} else {
766 		step = civ - ichdev->civ;
767 		if (step < 0)
768 			step += ICH_REG_LVI_MASK + 1;
769 		// if (step != 1)
770 		//	snd_printd("step = %d, %d -> %d\n", step, ichdev->civ, civ);
771 		ichdev->civ = civ;
772 	}
773 
774 	ichdev->position += step * ichdev->fragsize1;
775 	if (! chip->in_measurement)
776 		ichdev->position %= ichdev->size;
777 	ichdev->lvi += step;
778 	ichdev->lvi &= ICH_REG_LVI_MASK;
779 	iputbyte(chip, port + ICH_REG_OFF_LVI, ichdev->lvi);
780 	for (i = 0; i < step; i++) {
781 		ichdev->lvi_frag++;
782 		ichdev->lvi_frag %= ichdev->frags;
783 		ichdev->bdbar[ichdev->lvi * 2] = cpu_to_le32(ichdev->physbuf + ichdev->lvi_frag * ichdev->fragsize1);
784 #if 0
785 	dev_dbg(chip->card->dev,
786 		"new: bdbar[%i] = 0x%x [0x%x], prefetch = %i, all = 0x%x, 0x%x\n",
787 	       ichdev->lvi * 2, ichdev->bdbar[ichdev->lvi * 2],
788 	       ichdev->bdbar[ichdev->lvi * 2 + 1], inb(ICH_REG_OFF_PIV + port),
789 	       inl(port + 4), inb(port + ICH_REG_OFF_CR));
790 #endif
791 		if (--ichdev->ack == 0) {
792 			ichdev->ack = ichdev->ack_reload;
793 			ack = 1;
794 		}
795 	}
796 	spin_unlock_irqrestore(&chip->reg_lock, flags);
797 	if (ack && ichdev->substream) {
798 		snd_pcm_period_elapsed(ichdev->substream);
799 	}
800 	iputbyte(chip, port + ichdev->roff_sr,
801 		 status & (ICH_FIFOE | ICH_BCIS | ICH_LVBCI));
802 }
803 
804 static irqreturn_t snd_intel8x0_interrupt(int irq, void *dev_id)
805 {
806 	struct intel8x0 *chip = dev_id;
807 	struct ichdev *ichdev;
808 	unsigned int status;
809 	unsigned int i;
810 
811 	status = igetdword(chip, chip->int_sta_reg);
812 	if (status == 0xffffffff)	/* we are not yet resumed */
813 		return IRQ_NONE;
814 
815 	if ((status & chip->int_sta_mask) == 0) {
816 		if (status) {
817 			/* ack */
818 			iputdword(chip, chip->int_sta_reg, status);
819 			if (! chip->buggy_irq)
820 				status = 0;
821 		}
822 		return IRQ_RETVAL(status);
823 	}
824 
825 	for (i = 0; i < chip->bdbars_count; i++) {
826 		ichdev = &chip->ichd[i];
827 		if (status & ichdev->int_sta_mask)
828 			snd_intel8x0_update(chip, ichdev);
829 	}
830 
831 	/* ack them */
832 	iputdword(chip, chip->int_sta_reg, status & chip->int_sta_mask);
833 
834 	return IRQ_HANDLED;
835 }
836 
837 /*
838  *  PCM part
839  */
840 
841 static int snd_intel8x0_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
842 {
843 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
844 	struct ichdev *ichdev = get_ichdev(substream);
845 	unsigned char val = 0;
846 	unsigned long port = ichdev->reg_offset;
847 
848 	switch (cmd) {
849 	case SNDRV_PCM_TRIGGER_RESUME:
850 		ichdev->suspended = 0;
851 		/* fallthru */
852 	case SNDRV_PCM_TRIGGER_START:
853 	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
854 		val = ICH_IOCE | ICH_STARTBM;
855 		ichdev->last_pos = ichdev->position;
856 		break;
857 	case SNDRV_PCM_TRIGGER_SUSPEND:
858 		ichdev->suspended = 1;
859 		/* fallthru */
860 	case SNDRV_PCM_TRIGGER_STOP:
861 		val = 0;
862 		break;
863 	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
864 		val = ICH_IOCE;
865 		break;
866 	default:
867 		return -EINVAL;
868 	}
869 	iputbyte(chip, port + ICH_REG_OFF_CR, val);
870 	if (cmd == SNDRV_PCM_TRIGGER_STOP) {
871 		/* wait until DMA stopped */
872 		while (!(igetbyte(chip, port + ichdev->roff_sr) & ICH_DCH)) ;
873 		/* reset whole DMA things */
874 		iputbyte(chip, port + ICH_REG_OFF_CR, ICH_RESETREGS);
875 	}
876 	return 0;
877 }
878 
879 static int snd_intel8x0_ali_trigger(struct snd_pcm_substream *substream, int cmd)
880 {
881 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
882 	struct ichdev *ichdev = get_ichdev(substream);
883 	unsigned long port = ichdev->reg_offset;
884 	static int fiforeg[] = {
885 		ICHREG(ALI_FIFOCR1), ICHREG(ALI_FIFOCR2), ICHREG(ALI_FIFOCR3)
886 	};
887 	unsigned int val, fifo;
888 
889 	val = igetdword(chip, ICHREG(ALI_DMACR));
890 	switch (cmd) {
891 	case SNDRV_PCM_TRIGGER_RESUME:
892 		ichdev->suspended = 0;
893 		/* fallthru */
894 	case SNDRV_PCM_TRIGGER_START:
895 	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
896 		if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
897 			/* clear FIFO for synchronization of channels */
898 			fifo = igetdword(chip, fiforeg[ichdev->ali_slot / 4]);
899 			fifo &= ~(0xff << (ichdev->ali_slot % 4));
900 			fifo |= 0x83 << (ichdev->ali_slot % 4);
901 			iputdword(chip, fiforeg[ichdev->ali_slot / 4], fifo);
902 		}
903 		iputbyte(chip, port + ICH_REG_OFF_CR, ICH_IOCE);
904 		val &= ~(1 << (ichdev->ali_slot + 16)); /* clear PAUSE flag */
905 		/* start DMA */
906 		iputdword(chip, ICHREG(ALI_DMACR), val | (1 << ichdev->ali_slot));
907 		break;
908 	case SNDRV_PCM_TRIGGER_SUSPEND:
909 		ichdev->suspended = 1;
910 		/* fallthru */
911 	case SNDRV_PCM_TRIGGER_STOP:
912 	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
913 		/* pause */
914 		iputdword(chip, ICHREG(ALI_DMACR), val | (1 << (ichdev->ali_slot + 16)));
915 		iputbyte(chip, port + ICH_REG_OFF_CR, 0);
916 		while (igetbyte(chip, port + ICH_REG_OFF_CR))
917 			;
918 		if (cmd == SNDRV_PCM_TRIGGER_PAUSE_PUSH)
919 			break;
920 		/* reset whole DMA things */
921 		iputbyte(chip, port + ICH_REG_OFF_CR, ICH_RESETREGS);
922 		/* clear interrupts */
923 		iputbyte(chip, port + ICH_REG_OFF_SR,
924 			 igetbyte(chip, port + ICH_REG_OFF_SR) | 0x1e);
925 		iputdword(chip, ICHREG(ALI_INTERRUPTSR),
926 			  igetdword(chip, ICHREG(ALI_INTERRUPTSR)) & ichdev->int_sta_mask);
927 		break;
928 	default:
929 		return -EINVAL;
930 	}
931 	return 0;
932 }
933 
934 static int snd_intel8x0_hw_params(struct snd_pcm_substream *substream,
935 				  struct snd_pcm_hw_params *hw_params)
936 {
937 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
938 	struct ichdev *ichdev = get_ichdev(substream);
939 	struct snd_pcm_runtime *runtime = substream->runtime;
940 	int dbl = params_rate(hw_params) > 48000;
941 	int err;
942 
943 	if (chip->fix_nocache && ichdev->page_attr_changed) {
944 		fill_nocache(runtime->dma_area, runtime->dma_bytes, 0); /* clear */
945 		ichdev->page_attr_changed = 0;
946 	}
947 	err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
948 	if (err < 0)
949 		return err;
950 	if (chip->fix_nocache) {
951 		if (runtime->dma_area && ! ichdev->page_attr_changed) {
952 			fill_nocache(runtime->dma_area, runtime->dma_bytes, 1);
953 			ichdev->page_attr_changed = 1;
954 		}
955 	}
956 	if (ichdev->pcm_open_flag) {
957 		snd_ac97_pcm_close(ichdev->pcm);
958 		ichdev->pcm_open_flag = 0;
959 	}
960 	err = snd_ac97_pcm_open(ichdev->pcm, params_rate(hw_params),
961 				params_channels(hw_params),
962 				ichdev->pcm->r[dbl].slots);
963 	if (err >= 0) {
964 		ichdev->pcm_open_flag = 1;
965 		/* Force SPDIF setting */
966 		if (ichdev->ichd == ICHD_PCMOUT && chip->spdif_idx < 0)
967 			snd_ac97_set_rate(ichdev->pcm->r[0].codec[0], AC97_SPDIF,
968 					  params_rate(hw_params));
969 	}
970 	return err;
971 }
972 
973 static int snd_intel8x0_hw_free(struct snd_pcm_substream *substream)
974 {
975 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
976 	struct ichdev *ichdev = get_ichdev(substream);
977 
978 	if (ichdev->pcm_open_flag) {
979 		snd_ac97_pcm_close(ichdev->pcm);
980 		ichdev->pcm_open_flag = 0;
981 	}
982 	if (chip->fix_nocache && ichdev->page_attr_changed) {
983 		fill_nocache(substream->runtime->dma_area, substream->runtime->dma_bytes, 0);
984 		ichdev->page_attr_changed = 0;
985 	}
986 	return snd_pcm_lib_free_pages(substream);
987 }
988 
989 static void snd_intel8x0_setup_pcm_out(struct intel8x0 *chip,
990 				       struct snd_pcm_runtime *runtime)
991 {
992 	unsigned int cnt;
993 	int dbl = runtime->rate > 48000;
994 
995 	spin_lock_irq(&chip->reg_lock);
996 	switch (chip->device_type) {
997 	case DEVICE_ALI:
998 		cnt = igetdword(chip, ICHREG(ALI_SCR));
999 		cnt &= ~ICH_ALI_SC_PCM_246_MASK;
1000 		if (runtime->channels == 4 || dbl)
1001 			cnt |= ICH_ALI_SC_PCM_4;
1002 		else if (runtime->channels == 6)
1003 			cnt |= ICH_ALI_SC_PCM_6;
1004 		iputdword(chip, ICHREG(ALI_SCR), cnt);
1005 		break;
1006 	case DEVICE_SIS:
1007 		cnt = igetdword(chip, ICHREG(GLOB_CNT));
1008 		cnt &= ~ICH_SIS_PCM_246_MASK;
1009 		if (runtime->channels == 4 || dbl)
1010 			cnt |= ICH_SIS_PCM_4;
1011 		else if (runtime->channels == 6)
1012 			cnt |= ICH_SIS_PCM_6;
1013 		iputdword(chip, ICHREG(GLOB_CNT), cnt);
1014 		break;
1015 	default:
1016 		cnt = igetdword(chip, ICHREG(GLOB_CNT));
1017 		cnt &= ~(ICH_PCM_246_MASK | ICH_PCM_20BIT);
1018 		if (runtime->channels == 4 || dbl)
1019 			cnt |= ICH_PCM_4;
1020 		else if (runtime->channels == 6)
1021 			cnt |= ICH_PCM_6;
1022 		else if (runtime->channels == 8)
1023 			cnt |= ICH_PCM_8;
1024 		if (chip->device_type == DEVICE_NFORCE) {
1025 			/* reset to 2ch once to keep the 6 channel data in alignment,
1026 			 * to start from Front Left always
1027 			 */
1028 			if (cnt & ICH_PCM_246_MASK) {
1029 				iputdword(chip, ICHREG(GLOB_CNT), cnt & ~ICH_PCM_246_MASK);
1030 				spin_unlock_irq(&chip->reg_lock);
1031 				msleep(50); /* grrr... */
1032 				spin_lock_irq(&chip->reg_lock);
1033 			}
1034 		} else if (chip->device_type == DEVICE_INTEL_ICH4) {
1035 			if (runtime->sample_bits > 16)
1036 				cnt |= ICH_PCM_20BIT;
1037 		}
1038 		iputdword(chip, ICHREG(GLOB_CNT), cnt);
1039 		break;
1040 	}
1041 	spin_unlock_irq(&chip->reg_lock);
1042 }
1043 
1044 static int snd_intel8x0_pcm_prepare(struct snd_pcm_substream *substream)
1045 {
1046 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1047 	struct snd_pcm_runtime *runtime = substream->runtime;
1048 	struct ichdev *ichdev = get_ichdev(substream);
1049 
1050 	ichdev->physbuf = runtime->dma_addr;
1051 	ichdev->size = snd_pcm_lib_buffer_bytes(substream);
1052 	ichdev->fragsize = snd_pcm_lib_period_bytes(substream);
1053 	if (ichdev->ichd == ICHD_PCMOUT) {
1054 		snd_intel8x0_setup_pcm_out(chip, runtime);
1055 		if (chip->device_type == DEVICE_INTEL_ICH4)
1056 			ichdev->pos_shift = (runtime->sample_bits > 16) ? 2 : 1;
1057 	}
1058 	snd_intel8x0_setup_periods(chip, ichdev);
1059 	return 0;
1060 }
1061 
1062 static snd_pcm_uframes_t snd_intel8x0_pcm_pointer(struct snd_pcm_substream *substream)
1063 {
1064 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1065 	struct ichdev *ichdev = get_ichdev(substream);
1066 	size_t ptr1, ptr;
1067 	int civ, timeout = 10;
1068 	unsigned int position;
1069 
1070 	spin_lock(&chip->reg_lock);
1071 	do {
1072 		civ = igetbyte(chip, ichdev->reg_offset + ICH_REG_OFF_CIV);
1073 		ptr1 = igetword(chip, ichdev->reg_offset + ichdev->roff_picb);
1074 		position = ichdev->position;
1075 		if (ptr1 == 0) {
1076 			udelay(10);
1077 			continue;
1078 		}
1079 		if (civ != igetbyte(chip, ichdev->reg_offset + ICH_REG_OFF_CIV))
1080 			continue;
1081 
1082 		/* IO read operation is very expensive inside virtual machine
1083 		 * as it is emulated. The probability that subsequent PICB read
1084 		 * will return different result is high enough to loop till
1085 		 * timeout here.
1086 		 * Same CIV is strict enough condition to be sure that PICB
1087 		 * is valid inside VM on emulated card. */
1088 		if (chip->inside_vm)
1089 			break;
1090 		if (ptr1 == igetword(chip, ichdev->reg_offset + ichdev->roff_picb))
1091 			break;
1092 	} while (timeout--);
1093 	ptr = ichdev->last_pos;
1094 	if (ptr1 != 0) {
1095 		ptr1 <<= ichdev->pos_shift;
1096 		ptr = ichdev->fragsize1 - ptr1;
1097 		ptr += position;
1098 		if (ptr < ichdev->last_pos) {
1099 			unsigned int pos_base, last_base;
1100 			pos_base = position / ichdev->fragsize1;
1101 			last_base = ichdev->last_pos / ichdev->fragsize1;
1102 			/* another sanity check; ptr1 can go back to full
1103 			 * before the base position is updated
1104 			 */
1105 			if (pos_base == last_base)
1106 				ptr = ichdev->last_pos;
1107 		}
1108 	}
1109 	ichdev->last_pos = ptr;
1110 	spin_unlock(&chip->reg_lock);
1111 	if (ptr >= ichdev->size)
1112 		return 0;
1113 	return bytes_to_frames(substream->runtime, ptr);
1114 }
1115 
1116 static struct snd_pcm_hardware snd_intel8x0_stream =
1117 {
1118 	.info =			(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1119 				 SNDRV_PCM_INFO_BLOCK_TRANSFER |
1120 				 SNDRV_PCM_INFO_MMAP_VALID |
1121 				 SNDRV_PCM_INFO_PAUSE |
1122 				 SNDRV_PCM_INFO_RESUME),
1123 	.formats =		SNDRV_PCM_FMTBIT_S16_LE,
1124 	.rates =		SNDRV_PCM_RATE_48000,
1125 	.rate_min =		48000,
1126 	.rate_max =		48000,
1127 	.channels_min =		2,
1128 	.channels_max =		2,
1129 	.buffer_bytes_max =	128 * 1024,
1130 	.period_bytes_min =	32,
1131 	.period_bytes_max =	128 * 1024,
1132 	.periods_min =		1,
1133 	.periods_max =		1024,
1134 	.fifo_size =		0,
1135 };
1136 
1137 static unsigned int channels4[] = {
1138 	2, 4,
1139 };
1140 
1141 static struct snd_pcm_hw_constraint_list hw_constraints_channels4 = {
1142 	.count = ARRAY_SIZE(channels4),
1143 	.list = channels4,
1144 	.mask = 0,
1145 };
1146 
1147 static unsigned int channels6[] = {
1148 	2, 4, 6,
1149 };
1150 
1151 static struct snd_pcm_hw_constraint_list hw_constraints_channels6 = {
1152 	.count = ARRAY_SIZE(channels6),
1153 	.list = channels6,
1154 	.mask = 0,
1155 };
1156 
1157 static unsigned int channels8[] = {
1158 	2, 4, 6, 8,
1159 };
1160 
1161 static struct snd_pcm_hw_constraint_list hw_constraints_channels8 = {
1162 	.count = ARRAY_SIZE(channels8),
1163 	.list = channels8,
1164 	.mask = 0,
1165 };
1166 
1167 static int snd_intel8x0_pcm_open(struct snd_pcm_substream *substream, struct ichdev *ichdev)
1168 {
1169 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1170 	struct snd_pcm_runtime *runtime = substream->runtime;
1171 	int err;
1172 
1173 	ichdev->substream = substream;
1174 	runtime->hw = snd_intel8x0_stream;
1175 	runtime->hw.rates = ichdev->pcm->rates;
1176 	snd_pcm_limit_hw_rates(runtime);
1177 	if (chip->device_type == DEVICE_SIS) {
1178 		runtime->hw.buffer_bytes_max = 64*1024;
1179 		runtime->hw.period_bytes_max = 64*1024;
1180 	}
1181 	if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
1182 		return err;
1183 	runtime->private_data = ichdev;
1184 	return 0;
1185 }
1186 
1187 static int snd_intel8x0_playback_open(struct snd_pcm_substream *substream)
1188 {
1189 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1190 	struct snd_pcm_runtime *runtime = substream->runtime;
1191 	int err;
1192 
1193 	err = snd_intel8x0_pcm_open(substream, &chip->ichd[ICHD_PCMOUT]);
1194 	if (err < 0)
1195 		return err;
1196 
1197 	if (chip->multi8) {
1198 		runtime->hw.channels_max = 8;
1199 		snd_pcm_hw_constraint_list(runtime, 0,
1200 						SNDRV_PCM_HW_PARAM_CHANNELS,
1201 						&hw_constraints_channels8);
1202 	} else if (chip->multi6) {
1203 		runtime->hw.channels_max = 6;
1204 		snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
1205 					   &hw_constraints_channels6);
1206 	} else if (chip->multi4) {
1207 		runtime->hw.channels_max = 4;
1208 		snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
1209 					   &hw_constraints_channels4);
1210 	}
1211 	if (chip->dra) {
1212 		snd_ac97_pcm_double_rate_rules(runtime);
1213 	}
1214 	if (chip->smp20bit) {
1215 		runtime->hw.formats |= SNDRV_PCM_FMTBIT_S32_LE;
1216 		snd_pcm_hw_constraint_msbits(runtime, 0, 32, 20);
1217 	}
1218 	return 0;
1219 }
1220 
1221 static int snd_intel8x0_playback_close(struct snd_pcm_substream *substream)
1222 {
1223 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1224 
1225 	chip->ichd[ICHD_PCMOUT].substream = NULL;
1226 	return 0;
1227 }
1228 
1229 static int snd_intel8x0_capture_open(struct snd_pcm_substream *substream)
1230 {
1231 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1232 
1233 	return snd_intel8x0_pcm_open(substream, &chip->ichd[ICHD_PCMIN]);
1234 }
1235 
1236 static int snd_intel8x0_capture_close(struct snd_pcm_substream *substream)
1237 {
1238 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1239 
1240 	chip->ichd[ICHD_PCMIN].substream = NULL;
1241 	return 0;
1242 }
1243 
1244 static int snd_intel8x0_mic_open(struct snd_pcm_substream *substream)
1245 {
1246 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1247 
1248 	return snd_intel8x0_pcm_open(substream, &chip->ichd[ICHD_MIC]);
1249 }
1250 
1251 static int snd_intel8x0_mic_close(struct snd_pcm_substream *substream)
1252 {
1253 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1254 
1255 	chip->ichd[ICHD_MIC].substream = NULL;
1256 	return 0;
1257 }
1258 
1259 static int snd_intel8x0_mic2_open(struct snd_pcm_substream *substream)
1260 {
1261 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1262 
1263 	return snd_intel8x0_pcm_open(substream, &chip->ichd[ICHD_MIC2]);
1264 }
1265 
1266 static int snd_intel8x0_mic2_close(struct snd_pcm_substream *substream)
1267 {
1268 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1269 
1270 	chip->ichd[ICHD_MIC2].substream = NULL;
1271 	return 0;
1272 }
1273 
1274 static int snd_intel8x0_capture2_open(struct snd_pcm_substream *substream)
1275 {
1276 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1277 
1278 	return snd_intel8x0_pcm_open(substream, &chip->ichd[ICHD_PCM2IN]);
1279 }
1280 
1281 static int snd_intel8x0_capture2_close(struct snd_pcm_substream *substream)
1282 {
1283 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1284 
1285 	chip->ichd[ICHD_PCM2IN].substream = NULL;
1286 	return 0;
1287 }
1288 
1289 static int snd_intel8x0_spdif_open(struct snd_pcm_substream *substream)
1290 {
1291 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1292 	int idx = chip->device_type == DEVICE_NFORCE ? NVD_SPBAR : ICHD_SPBAR;
1293 
1294 	return snd_intel8x0_pcm_open(substream, &chip->ichd[idx]);
1295 }
1296 
1297 static int snd_intel8x0_spdif_close(struct snd_pcm_substream *substream)
1298 {
1299 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1300 	int idx = chip->device_type == DEVICE_NFORCE ? NVD_SPBAR : ICHD_SPBAR;
1301 
1302 	chip->ichd[idx].substream = NULL;
1303 	return 0;
1304 }
1305 
1306 static int snd_intel8x0_ali_ac97spdifout_open(struct snd_pcm_substream *substream)
1307 {
1308 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1309 	unsigned int val;
1310 
1311 	spin_lock_irq(&chip->reg_lock);
1312 	val = igetdword(chip, ICHREG(ALI_INTERFACECR));
1313 	val |= ICH_ALI_IF_AC97SP;
1314 	iputdword(chip, ICHREG(ALI_INTERFACECR), val);
1315 	/* also needs to set ALI_SC_CODEC_SPDF correctly */
1316 	spin_unlock_irq(&chip->reg_lock);
1317 
1318 	return snd_intel8x0_pcm_open(substream, &chip->ichd[ALID_AC97SPDIFOUT]);
1319 }
1320 
1321 static int snd_intel8x0_ali_ac97spdifout_close(struct snd_pcm_substream *substream)
1322 {
1323 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1324 	unsigned int val;
1325 
1326 	chip->ichd[ALID_AC97SPDIFOUT].substream = NULL;
1327 	spin_lock_irq(&chip->reg_lock);
1328 	val = igetdword(chip, ICHREG(ALI_INTERFACECR));
1329 	val &= ~ICH_ALI_IF_AC97SP;
1330 	iputdword(chip, ICHREG(ALI_INTERFACECR), val);
1331 	spin_unlock_irq(&chip->reg_lock);
1332 
1333 	return 0;
1334 }
1335 
1336 #if 0 // NYI
1337 static int snd_intel8x0_ali_spdifin_open(struct snd_pcm_substream *substream)
1338 {
1339 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1340 
1341 	return snd_intel8x0_pcm_open(substream, &chip->ichd[ALID_SPDIFIN]);
1342 }
1343 
1344 static int snd_intel8x0_ali_spdifin_close(struct snd_pcm_substream *substream)
1345 {
1346 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1347 
1348 	chip->ichd[ALID_SPDIFIN].substream = NULL;
1349 	return 0;
1350 }
1351 
1352 static int snd_intel8x0_ali_spdifout_open(struct snd_pcm_substream *substream)
1353 {
1354 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1355 
1356 	return snd_intel8x0_pcm_open(substream, &chip->ichd[ALID_SPDIFOUT]);
1357 }
1358 
1359 static int snd_intel8x0_ali_spdifout_close(struct snd_pcm_substream *substream)
1360 {
1361 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1362 
1363 	chip->ichd[ALID_SPDIFOUT].substream = NULL;
1364 	return 0;
1365 }
1366 #endif
1367 
1368 static struct snd_pcm_ops snd_intel8x0_playback_ops = {
1369 	.open =		snd_intel8x0_playback_open,
1370 	.close =	snd_intel8x0_playback_close,
1371 	.ioctl =	snd_pcm_lib_ioctl,
1372 	.hw_params =	snd_intel8x0_hw_params,
1373 	.hw_free =	snd_intel8x0_hw_free,
1374 	.prepare =	snd_intel8x0_pcm_prepare,
1375 	.trigger =	snd_intel8x0_pcm_trigger,
1376 	.pointer =	snd_intel8x0_pcm_pointer,
1377 };
1378 
1379 static struct snd_pcm_ops snd_intel8x0_capture_ops = {
1380 	.open =		snd_intel8x0_capture_open,
1381 	.close =	snd_intel8x0_capture_close,
1382 	.ioctl =	snd_pcm_lib_ioctl,
1383 	.hw_params =	snd_intel8x0_hw_params,
1384 	.hw_free =	snd_intel8x0_hw_free,
1385 	.prepare =	snd_intel8x0_pcm_prepare,
1386 	.trigger =	snd_intel8x0_pcm_trigger,
1387 	.pointer =	snd_intel8x0_pcm_pointer,
1388 };
1389 
1390 static struct snd_pcm_ops snd_intel8x0_capture_mic_ops = {
1391 	.open =		snd_intel8x0_mic_open,
1392 	.close =	snd_intel8x0_mic_close,
1393 	.ioctl =	snd_pcm_lib_ioctl,
1394 	.hw_params =	snd_intel8x0_hw_params,
1395 	.hw_free =	snd_intel8x0_hw_free,
1396 	.prepare =	snd_intel8x0_pcm_prepare,
1397 	.trigger =	snd_intel8x0_pcm_trigger,
1398 	.pointer =	snd_intel8x0_pcm_pointer,
1399 };
1400 
1401 static struct snd_pcm_ops snd_intel8x0_capture_mic2_ops = {
1402 	.open =		snd_intel8x0_mic2_open,
1403 	.close =	snd_intel8x0_mic2_close,
1404 	.ioctl =	snd_pcm_lib_ioctl,
1405 	.hw_params =	snd_intel8x0_hw_params,
1406 	.hw_free =	snd_intel8x0_hw_free,
1407 	.prepare =	snd_intel8x0_pcm_prepare,
1408 	.trigger =	snd_intel8x0_pcm_trigger,
1409 	.pointer =	snd_intel8x0_pcm_pointer,
1410 };
1411 
1412 static struct snd_pcm_ops snd_intel8x0_capture2_ops = {
1413 	.open =		snd_intel8x0_capture2_open,
1414 	.close =	snd_intel8x0_capture2_close,
1415 	.ioctl =	snd_pcm_lib_ioctl,
1416 	.hw_params =	snd_intel8x0_hw_params,
1417 	.hw_free =	snd_intel8x0_hw_free,
1418 	.prepare =	snd_intel8x0_pcm_prepare,
1419 	.trigger =	snd_intel8x0_pcm_trigger,
1420 	.pointer =	snd_intel8x0_pcm_pointer,
1421 };
1422 
1423 static struct snd_pcm_ops snd_intel8x0_spdif_ops = {
1424 	.open =		snd_intel8x0_spdif_open,
1425 	.close =	snd_intel8x0_spdif_close,
1426 	.ioctl =	snd_pcm_lib_ioctl,
1427 	.hw_params =	snd_intel8x0_hw_params,
1428 	.hw_free =	snd_intel8x0_hw_free,
1429 	.prepare =	snd_intel8x0_pcm_prepare,
1430 	.trigger =	snd_intel8x0_pcm_trigger,
1431 	.pointer =	snd_intel8x0_pcm_pointer,
1432 };
1433 
1434 static struct snd_pcm_ops snd_intel8x0_ali_playback_ops = {
1435 	.open =		snd_intel8x0_playback_open,
1436 	.close =	snd_intel8x0_playback_close,
1437 	.ioctl =	snd_pcm_lib_ioctl,
1438 	.hw_params =	snd_intel8x0_hw_params,
1439 	.hw_free =	snd_intel8x0_hw_free,
1440 	.prepare =	snd_intel8x0_pcm_prepare,
1441 	.trigger =	snd_intel8x0_ali_trigger,
1442 	.pointer =	snd_intel8x0_pcm_pointer,
1443 };
1444 
1445 static struct snd_pcm_ops snd_intel8x0_ali_capture_ops = {
1446 	.open =		snd_intel8x0_capture_open,
1447 	.close =	snd_intel8x0_capture_close,
1448 	.ioctl =	snd_pcm_lib_ioctl,
1449 	.hw_params =	snd_intel8x0_hw_params,
1450 	.hw_free =	snd_intel8x0_hw_free,
1451 	.prepare =	snd_intel8x0_pcm_prepare,
1452 	.trigger =	snd_intel8x0_ali_trigger,
1453 	.pointer =	snd_intel8x0_pcm_pointer,
1454 };
1455 
1456 static struct snd_pcm_ops snd_intel8x0_ali_capture_mic_ops = {
1457 	.open =		snd_intel8x0_mic_open,
1458 	.close =	snd_intel8x0_mic_close,
1459 	.ioctl =	snd_pcm_lib_ioctl,
1460 	.hw_params =	snd_intel8x0_hw_params,
1461 	.hw_free =	snd_intel8x0_hw_free,
1462 	.prepare =	snd_intel8x0_pcm_prepare,
1463 	.trigger =	snd_intel8x0_ali_trigger,
1464 	.pointer =	snd_intel8x0_pcm_pointer,
1465 };
1466 
1467 static struct snd_pcm_ops snd_intel8x0_ali_ac97spdifout_ops = {
1468 	.open =		snd_intel8x0_ali_ac97spdifout_open,
1469 	.close =	snd_intel8x0_ali_ac97spdifout_close,
1470 	.ioctl =	snd_pcm_lib_ioctl,
1471 	.hw_params =	snd_intel8x0_hw_params,
1472 	.hw_free =	snd_intel8x0_hw_free,
1473 	.prepare =	snd_intel8x0_pcm_prepare,
1474 	.trigger =	snd_intel8x0_ali_trigger,
1475 	.pointer =	snd_intel8x0_pcm_pointer,
1476 };
1477 
1478 #if 0 // NYI
1479 static struct snd_pcm_ops snd_intel8x0_ali_spdifin_ops = {
1480 	.open =		snd_intel8x0_ali_spdifin_open,
1481 	.close =	snd_intel8x0_ali_spdifin_close,
1482 	.ioctl =	snd_pcm_lib_ioctl,
1483 	.hw_params =	snd_intel8x0_hw_params,
1484 	.hw_free =	snd_intel8x0_hw_free,
1485 	.prepare =	snd_intel8x0_pcm_prepare,
1486 	.trigger =	snd_intel8x0_pcm_trigger,
1487 	.pointer =	snd_intel8x0_pcm_pointer,
1488 };
1489 
1490 static struct snd_pcm_ops snd_intel8x0_ali_spdifout_ops = {
1491 	.open =		snd_intel8x0_ali_spdifout_open,
1492 	.close =	snd_intel8x0_ali_spdifout_close,
1493 	.ioctl =	snd_pcm_lib_ioctl,
1494 	.hw_params =	snd_intel8x0_hw_params,
1495 	.hw_free =	snd_intel8x0_hw_free,
1496 	.prepare =	snd_intel8x0_pcm_prepare,
1497 	.trigger =	snd_intel8x0_pcm_trigger,
1498 	.pointer =	snd_intel8x0_pcm_pointer,
1499 };
1500 #endif // NYI
1501 
1502 struct ich_pcm_table {
1503 	char *suffix;
1504 	struct snd_pcm_ops *playback_ops;
1505 	struct snd_pcm_ops *capture_ops;
1506 	size_t prealloc_size;
1507 	size_t prealloc_max_size;
1508 	int ac97_idx;
1509 };
1510 
1511 static int snd_intel8x0_pcm1(struct intel8x0 *chip, int device,
1512 			     struct ich_pcm_table *rec)
1513 {
1514 	struct snd_pcm *pcm;
1515 	int err;
1516 	char name[32];
1517 
1518 	if (rec->suffix)
1519 		sprintf(name, "Intel ICH - %s", rec->suffix);
1520 	else
1521 		strcpy(name, "Intel ICH");
1522 	err = snd_pcm_new(chip->card, name, device,
1523 			  rec->playback_ops ? 1 : 0,
1524 			  rec->capture_ops ? 1 : 0, &pcm);
1525 	if (err < 0)
1526 		return err;
1527 
1528 	if (rec->playback_ops)
1529 		snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, rec->playback_ops);
1530 	if (rec->capture_ops)
1531 		snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, rec->capture_ops);
1532 
1533 	pcm->private_data = chip;
1534 	pcm->info_flags = 0;
1535 	if (rec->suffix)
1536 		sprintf(pcm->name, "%s - %s", chip->card->shortname, rec->suffix);
1537 	else
1538 		strcpy(pcm->name, chip->card->shortname);
1539 	chip->pcm[device] = pcm;
1540 
1541 	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
1542 					      snd_dma_pci_data(chip->pci),
1543 					      rec->prealloc_size, rec->prealloc_max_size);
1544 
1545 	if (rec->playback_ops &&
1546 	    rec->playback_ops->open == snd_intel8x0_playback_open) {
1547 		struct snd_pcm_chmap *chmap;
1548 		int chs = 2;
1549 		if (chip->multi8)
1550 			chs = 8;
1551 		else if (chip->multi6)
1552 			chs = 6;
1553 		else if (chip->multi4)
1554 			chs = 4;
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 const 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 				dev_err(chip->card->dev,
2294 					"Unable to initialize codec #%d\n", i);
2295 			if (i == 0)
2296 				goto __err;
2297 		}
2298 	}
2299 	/* tune up the primary codec */
2300 	snd_ac97_tune_hardware(chip->ac97[0], ac97_quirks, quirk_override);
2301 	/* enable separate SDINs for ICH4 */
2302 	if (chip->device_type == DEVICE_INTEL_ICH4)
2303 		pbus->isdin = 1;
2304 	/* find the available PCM streams */
2305 	i = ARRAY_SIZE(ac97_pcm_defs);
2306 	if (chip->device_type != DEVICE_INTEL_ICH4)
2307 		i -= 2;		/* do not allocate PCM2IN and MIC2 */
2308 	if (chip->spdif_idx < 0)
2309 		i--;		/* do not allocate S/PDIF */
2310 	err = snd_ac97_pcm_assign(pbus, i, ac97_pcm_defs);
2311 	if (err < 0)
2312 		goto __err;
2313 	chip->ichd[ICHD_PCMOUT].pcm = &pbus->pcms[0];
2314 	chip->ichd[ICHD_PCMIN].pcm = &pbus->pcms[1];
2315 	chip->ichd[ICHD_MIC].pcm = &pbus->pcms[2];
2316 	if (chip->spdif_idx >= 0)
2317 		chip->ichd[chip->spdif_idx].pcm = &pbus->pcms[3];
2318 	if (chip->device_type == DEVICE_INTEL_ICH4) {
2319 		chip->ichd[ICHD_PCM2IN].pcm = &pbus->pcms[4];
2320 		chip->ichd[ICHD_MIC2].pcm = &pbus->pcms[5];
2321 	}
2322 	/* enable separate SDINs for ICH4 */
2323 	if (chip->device_type == DEVICE_INTEL_ICH4) {
2324 		struct ac97_pcm *pcm = chip->ichd[ICHD_PCM2IN].pcm;
2325 		u8 tmp = igetbyte(chip, ICHREG(SDM));
2326 		tmp &= ~(ICH_DI2L_MASK|ICH_DI1L_MASK);
2327 		if (pcm) {
2328 			tmp |= ICH_SE;	/* steer enable for multiple SDINs */
2329 			tmp |= chip->ac97_sdin[0] << ICH_DI1L_SHIFT;
2330 			for (i = 1; i < 4; i++) {
2331 				if (pcm->r[0].codec[i]) {
2332 					tmp |= chip->ac97_sdin[pcm->r[0].codec[1]->num] << ICH_DI2L_SHIFT;
2333 					break;
2334 				}
2335 			}
2336 		} else {
2337 			tmp &= ~ICH_SE; /* steer disable */
2338 		}
2339 		iputbyte(chip, ICHREG(SDM), tmp);
2340 	}
2341 	if (pbus->pcms[0].r[0].slots & (1 << AC97_SLOT_PCM_SLEFT)) {
2342 		chip->multi4 = 1;
2343 		if (pbus->pcms[0].r[0].slots & (1 << AC97_SLOT_LFE)) {
2344 			chip->multi6 = 1;
2345 			if (chip->ac97[0]->flags & AC97_HAS_8CH)
2346 				chip->multi8 = 1;
2347 		}
2348 	}
2349 	if (pbus->pcms[0].r[1].rslots[0]) {
2350 		chip->dra = 1;
2351 	}
2352 	if (chip->device_type == DEVICE_INTEL_ICH4) {
2353 		if ((igetdword(chip, ICHREG(GLOB_STA)) & ICH_SAMPLE_CAP) == ICH_SAMPLE_16_20)
2354 			chip->smp20bit = 1;
2355 	}
2356 	if (chip->device_type == DEVICE_NFORCE && !spdif_aclink) {
2357 		/* 48kHz only */
2358 		chip->ichd[chip->spdif_idx].pcm->rates = SNDRV_PCM_RATE_48000;
2359 	}
2360 	if (chip->device_type == DEVICE_INTEL_ICH4 && !spdif_aclink) {
2361 		/* use slot 10/11 for SPDIF */
2362 		u32 val;
2363 		val = igetdword(chip, ICHREG(GLOB_CNT)) & ~ICH_PCM_SPDIF_MASK;
2364 		val |= ICH_PCM_SPDIF_1011;
2365 		iputdword(chip, ICHREG(GLOB_CNT), val);
2366 		snd_ac97_update_bits(chip->ac97[0], AC97_EXTENDED_STATUS, 0x03 << 4, 0x03 << 4);
2367 	}
2368 	chip->in_ac97_init = 0;
2369 	return 0;
2370 
2371  __err:
2372 	/* clear the cold-reset bit for the next chance */
2373 	if (chip->device_type != DEVICE_ALI)
2374 		iputdword(chip, ICHREG(GLOB_CNT),
2375 			  igetdword(chip, ICHREG(GLOB_CNT)) & ~ICH_AC97COLD);
2376 	return err;
2377 }
2378 
2379 
2380 /*
2381  *
2382  */
2383 
2384 static void do_ali_reset(struct intel8x0 *chip)
2385 {
2386 	iputdword(chip, ICHREG(ALI_SCR), ICH_ALI_SC_RESET);
2387 	iputdword(chip, ICHREG(ALI_FIFOCR1), 0x83838383);
2388 	iputdword(chip, ICHREG(ALI_FIFOCR2), 0x83838383);
2389 	iputdword(chip, ICHREG(ALI_FIFOCR3), 0x83838383);
2390 	iputdword(chip, ICHREG(ALI_INTERFACECR),
2391 		  ICH_ALI_IF_PI|ICH_ALI_IF_PO);
2392 	iputdword(chip, ICHREG(ALI_INTERRUPTCR), 0x00000000);
2393 	iputdword(chip, ICHREG(ALI_INTERRUPTSR), 0x00000000);
2394 }
2395 
2396 #ifdef CONFIG_SND_AC97_POWER_SAVE
2397 static struct snd_pci_quirk ich_chip_reset_mode[] = {
2398 	SND_PCI_QUIRK(0x1014, 0x051f, "Thinkpad R32", 1),
2399 	{ } /* end */
2400 };
2401 
2402 static int snd_intel8x0_ich_chip_cold_reset(struct intel8x0 *chip)
2403 {
2404 	unsigned int cnt;
2405 	/* ACLink on, 2 channels */
2406 
2407 	if (snd_pci_quirk_lookup(chip->pci, ich_chip_reset_mode))
2408 		return -EIO;
2409 
2410 	cnt = igetdword(chip, ICHREG(GLOB_CNT));
2411 	cnt &= ~(ICH_ACLINK | ICH_PCM_246_MASK);
2412 
2413 	/* do cold reset - the full ac97 powerdown may leave the controller
2414 	 * in a warm state but actually it cannot communicate with the codec.
2415 	 */
2416 	iputdword(chip, ICHREG(GLOB_CNT), cnt & ~ICH_AC97COLD);
2417 	cnt = igetdword(chip, ICHREG(GLOB_CNT));
2418 	udelay(10);
2419 	iputdword(chip, ICHREG(GLOB_CNT), cnt | ICH_AC97COLD);
2420 	msleep(1);
2421 	return 0;
2422 }
2423 #define snd_intel8x0_ich_chip_can_cold_reset(chip) \
2424 	(!snd_pci_quirk_lookup(chip->pci, ich_chip_reset_mode))
2425 #else
2426 #define snd_intel8x0_ich_chip_cold_reset(chip)	0
2427 #define snd_intel8x0_ich_chip_can_cold_reset(chip) (0)
2428 #endif
2429 
2430 static int snd_intel8x0_ich_chip_reset(struct intel8x0 *chip)
2431 {
2432 	unsigned long end_time;
2433 	unsigned int cnt;
2434 	/* ACLink on, 2 channels */
2435 	cnt = igetdword(chip, ICHREG(GLOB_CNT));
2436 	cnt &= ~(ICH_ACLINK | ICH_PCM_246_MASK);
2437 	/* finish cold or do warm reset */
2438 	cnt |= (cnt & ICH_AC97COLD) == 0 ? ICH_AC97COLD : ICH_AC97WARM;
2439 	iputdword(chip, ICHREG(GLOB_CNT), cnt);
2440 	end_time = (jiffies + (HZ / 4)) + 1;
2441 	do {
2442 		if ((igetdword(chip, ICHREG(GLOB_CNT)) & ICH_AC97WARM) == 0)
2443 			return 0;
2444 		schedule_timeout_uninterruptible(1);
2445 	} while (time_after_eq(end_time, jiffies));
2446 	dev_err(chip->card->dev, "AC'97 warm reset still in progress? [0x%x]\n",
2447 		   igetdword(chip, ICHREG(GLOB_CNT)));
2448 	return -EIO;
2449 }
2450 
2451 static int snd_intel8x0_ich_chip_init(struct intel8x0 *chip, int probing)
2452 {
2453 	unsigned long end_time;
2454 	unsigned int status, nstatus;
2455 	unsigned int cnt;
2456 	int err;
2457 
2458 	/* put logic to right state */
2459 	/* first clear status bits */
2460 	status = ICH_RCS | ICH_MCINT | ICH_POINT | ICH_PIINT;
2461 	if (chip->device_type == DEVICE_NFORCE)
2462 		status |= ICH_NVSPINT;
2463 	cnt = igetdword(chip, ICHREG(GLOB_STA));
2464 	iputdword(chip, ICHREG(GLOB_STA), cnt & status);
2465 
2466 	if (snd_intel8x0_ich_chip_can_cold_reset(chip))
2467 		err = snd_intel8x0_ich_chip_cold_reset(chip);
2468 	else
2469 		err = snd_intel8x0_ich_chip_reset(chip);
2470 	if (err < 0)
2471 		return err;
2472 
2473 	if (probing) {
2474 		/* wait for any codec ready status.
2475 		 * Once it becomes ready it should remain ready
2476 		 * as long as we do not disable the ac97 link.
2477 		 */
2478 		end_time = jiffies + HZ;
2479 		do {
2480 			status = igetdword(chip, ICHREG(GLOB_STA)) &
2481 				chip->codec_isr_bits;
2482 			if (status)
2483 				break;
2484 			schedule_timeout_uninterruptible(1);
2485 		} while (time_after_eq(end_time, jiffies));
2486 		if (! status) {
2487 			/* no codec is found */
2488 			dev_err(chip->card->dev,
2489 				"codec_ready: codec is not ready [0x%x]\n",
2490 				   igetdword(chip, ICHREG(GLOB_STA)));
2491 			return -EIO;
2492 		}
2493 
2494 		/* wait for other codecs ready status. */
2495 		end_time = jiffies + HZ / 4;
2496 		while (status != chip->codec_isr_bits &&
2497 		       time_after_eq(end_time, jiffies)) {
2498 			schedule_timeout_uninterruptible(1);
2499 			status |= igetdword(chip, ICHREG(GLOB_STA)) &
2500 				chip->codec_isr_bits;
2501 		}
2502 
2503 	} else {
2504 		/* resume phase */
2505 		int i;
2506 		status = 0;
2507 		for (i = 0; i < chip->ncodecs; i++)
2508 			if (chip->ac97[i])
2509 				status |= chip->codec_bit[chip->ac97_sdin[i]];
2510 		/* wait until all the probed codecs are ready */
2511 		end_time = jiffies + HZ;
2512 		do {
2513 			nstatus = igetdword(chip, ICHREG(GLOB_STA)) &
2514 				chip->codec_isr_bits;
2515 			if (status == nstatus)
2516 				break;
2517 			schedule_timeout_uninterruptible(1);
2518 		} while (time_after_eq(end_time, jiffies));
2519 	}
2520 
2521 	if (chip->device_type == DEVICE_SIS) {
2522 		/* unmute the output on SIS7012 */
2523 		iputword(chip, 0x4c, igetword(chip, 0x4c) | 1);
2524 	}
2525 	if (chip->device_type == DEVICE_NFORCE && !spdif_aclink) {
2526 		/* enable SPDIF interrupt */
2527 		unsigned int val;
2528 		pci_read_config_dword(chip->pci, 0x4c, &val);
2529 		val |= 0x1000000;
2530 		pci_write_config_dword(chip->pci, 0x4c, val);
2531 	}
2532       	return 0;
2533 }
2534 
2535 static int snd_intel8x0_ali_chip_init(struct intel8x0 *chip, int probing)
2536 {
2537 	u32 reg;
2538 	int i = 0;
2539 
2540 	reg = igetdword(chip, ICHREG(ALI_SCR));
2541 	if ((reg & 2) == 0)	/* Cold required */
2542 		reg |= 2;
2543 	else
2544 		reg |= 1;	/* Warm */
2545 	reg &= ~0x80000000;	/* ACLink on */
2546 	iputdword(chip, ICHREG(ALI_SCR), reg);
2547 
2548 	for (i = 0; i < HZ / 2; i++) {
2549 		if (! (igetdword(chip, ICHREG(ALI_INTERRUPTSR)) & ALI_INT_GPIO))
2550 			goto __ok;
2551 		schedule_timeout_uninterruptible(1);
2552 	}
2553 	dev_err(chip->card->dev, "AC'97 reset failed.\n");
2554 	if (probing)
2555 		return -EIO;
2556 
2557  __ok:
2558 	for (i = 0; i < HZ / 2; i++) {
2559 		reg = igetdword(chip, ICHREG(ALI_RTSR));
2560 		if (reg & 0x80) /* primary codec */
2561 			break;
2562 		iputdword(chip, ICHREG(ALI_RTSR), reg | 0x80);
2563 		schedule_timeout_uninterruptible(1);
2564 	}
2565 
2566 	do_ali_reset(chip);
2567 	return 0;
2568 }
2569 
2570 static int snd_intel8x0_chip_init(struct intel8x0 *chip, int probing)
2571 {
2572 	unsigned int i, timeout;
2573 	int err;
2574 
2575 	if (chip->device_type != DEVICE_ALI) {
2576 		if ((err = snd_intel8x0_ich_chip_init(chip, probing)) < 0)
2577 			return err;
2578 		iagetword(chip, 0);	/* clear semaphore flag */
2579 	} else {
2580 		if ((err = snd_intel8x0_ali_chip_init(chip, probing)) < 0)
2581 			return err;
2582 	}
2583 
2584 	/* disable interrupts */
2585 	for (i = 0; i < chip->bdbars_count; i++)
2586 		iputbyte(chip, ICH_REG_OFF_CR + chip->ichd[i].reg_offset, 0x00);
2587 	/* reset channels */
2588 	for (i = 0; i < chip->bdbars_count; i++)
2589 		iputbyte(chip, ICH_REG_OFF_CR + chip->ichd[i].reg_offset, ICH_RESETREGS);
2590 	for (i = 0; i < chip->bdbars_count; i++) {
2591 	        timeout = 100000;
2592 	        while (--timeout != 0) {
2593         		if ((igetbyte(chip, ICH_REG_OFF_CR + chip->ichd[i].reg_offset) & ICH_RESETREGS) == 0)
2594         		        break;
2595                 }
2596                 if (timeout == 0)
2597 			dev_err(chip->card->dev, "reset of registers failed?\n");
2598         }
2599 	/* initialize Buffer Descriptor Lists */
2600 	for (i = 0; i < chip->bdbars_count; i++)
2601 		iputdword(chip, ICH_REG_OFF_BDBAR + chip->ichd[i].reg_offset,
2602 			  chip->ichd[i].bdbar_addr);
2603 	return 0;
2604 }
2605 
2606 static int snd_intel8x0_free(struct intel8x0 *chip)
2607 {
2608 	unsigned int i;
2609 
2610 	if (chip->irq < 0)
2611 		goto __hw_end;
2612 	/* disable interrupts */
2613 	for (i = 0; i < chip->bdbars_count; i++)
2614 		iputbyte(chip, ICH_REG_OFF_CR + chip->ichd[i].reg_offset, 0x00);
2615 	/* reset channels */
2616 	for (i = 0; i < chip->bdbars_count; i++)
2617 		iputbyte(chip, ICH_REG_OFF_CR + chip->ichd[i].reg_offset, ICH_RESETREGS);
2618 	if (chip->device_type == DEVICE_NFORCE && !spdif_aclink) {
2619 		/* stop the spdif interrupt */
2620 		unsigned int val;
2621 		pci_read_config_dword(chip->pci, 0x4c, &val);
2622 		val &= ~0x1000000;
2623 		pci_write_config_dword(chip->pci, 0x4c, val);
2624 	}
2625 	/* --- */
2626 
2627       __hw_end:
2628 	if (chip->irq >= 0)
2629 		free_irq(chip->irq, chip);
2630 	if (chip->bdbars.area) {
2631 		if (chip->fix_nocache)
2632 			fill_nocache(chip->bdbars.area, chip->bdbars.bytes, 0);
2633 		snd_dma_free_pages(&chip->bdbars);
2634 	}
2635 	if (chip->addr)
2636 		pci_iounmap(chip->pci, chip->addr);
2637 	if (chip->bmaddr)
2638 		pci_iounmap(chip->pci, chip->bmaddr);
2639 	pci_release_regions(chip->pci);
2640 	pci_disable_device(chip->pci);
2641 	kfree(chip);
2642 	return 0;
2643 }
2644 
2645 #ifdef CONFIG_PM_SLEEP
2646 /*
2647  * power management
2648  */
2649 static int intel8x0_suspend(struct device *dev)
2650 {
2651 	struct snd_card *card = dev_get_drvdata(dev);
2652 	struct intel8x0 *chip = card->private_data;
2653 	int i;
2654 
2655 	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
2656 	for (i = 0; i < chip->pcm_devs; i++)
2657 		snd_pcm_suspend_all(chip->pcm[i]);
2658 	/* clear nocache */
2659 	if (chip->fix_nocache) {
2660 		for (i = 0; i < chip->bdbars_count; i++) {
2661 			struct ichdev *ichdev = &chip->ichd[i];
2662 			if (ichdev->substream && ichdev->page_attr_changed) {
2663 				struct snd_pcm_runtime *runtime = ichdev->substream->runtime;
2664 				if (runtime->dma_area)
2665 					fill_nocache(runtime->dma_area, runtime->dma_bytes, 0);
2666 			}
2667 		}
2668 	}
2669 	for (i = 0; i < chip->ncodecs; i++)
2670 		snd_ac97_suspend(chip->ac97[i]);
2671 	if (chip->device_type == DEVICE_INTEL_ICH4)
2672 		chip->sdm_saved = igetbyte(chip, ICHREG(SDM));
2673 
2674 	if (chip->irq >= 0) {
2675 		free_irq(chip->irq, chip);
2676 		chip->irq = -1;
2677 	}
2678 	return 0;
2679 }
2680 
2681 static int intel8x0_resume(struct device *dev)
2682 {
2683 	struct pci_dev *pci = to_pci_dev(dev);
2684 	struct snd_card *card = dev_get_drvdata(dev);
2685 	struct intel8x0 *chip = card->private_data;
2686 	int i;
2687 
2688 	snd_intel8x0_chip_init(chip, 0);
2689 	if (request_irq(pci->irq, snd_intel8x0_interrupt,
2690 			IRQF_SHARED, KBUILD_MODNAME, chip)) {
2691 		dev_err(dev, "unable to grab IRQ %d, disabling device\n",
2692 			pci->irq);
2693 		snd_card_disconnect(card);
2694 		return -EIO;
2695 	}
2696 	chip->irq = pci->irq;
2697 	synchronize_irq(chip->irq);
2698 
2699 	/* re-initialize mixer stuff */
2700 	if (chip->device_type == DEVICE_INTEL_ICH4 && !spdif_aclink) {
2701 		/* enable separate SDINs for ICH4 */
2702 		iputbyte(chip, ICHREG(SDM), chip->sdm_saved);
2703 		/* use slot 10/11 for SPDIF */
2704 		iputdword(chip, ICHREG(GLOB_CNT),
2705 			  (igetdword(chip, ICHREG(GLOB_CNT)) & ~ICH_PCM_SPDIF_MASK) |
2706 			  ICH_PCM_SPDIF_1011);
2707 	}
2708 
2709 	/* refill nocache */
2710 	if (chip->fix_nocache)
2711 		fill_nocache(chip->bdbars.area, chip->bdbars.bytes, 1);
2712 
2713 	for (i = 0; i < chip->ncodecs; i++)
2714 		snd_ac97_resume(chip->ac97[i]);
2715 
2716 	/* refill nocache */
2717 	if (chip->fix_nocache) {
2718 		for (i = 0; i < chip->bdbars_count; i++) {
2719 			struct ichdev *ichdev = &chip->ichd[i];
2720 			if (ichdev->substream && ichdev->page_attr_changed) {
2721 				struct snd_pcm_runtime *runtime = ichdev->substream->runtime;
2722 				if (runtime->dma_area)
2723 					fill_nocache(runtime->dma_area, runtime->dma_bytes, 1);
2724 			}
2725 		}
2726 	}
2727 
2728 	/* resume status */
2729 	for (i = 0; i < chip->bdbars_count; i++) {
2730 		struct ichdev *ichdev = &chip->ichd[i];
2731 		unsigned long port = ichdev->reg_offset;
2732 		if (! ichdev->substream || ! ichdev->suspended)
2733 			continue;
2734 		if (ichdev->ichd == ICHD_PCMOUT)
2735 			snd_intel8x0_setup_pcm_out(chip, ichdev->substream->runtime);
2736 		iputdword(chip, port + ICH_REG_OFF_BDBAR, ichdev->bdbar_addr);
2737 		iputbyte(chip, port + ICH_REG_OFF_LVI, ichdev->lvi);
2738 		iputbyte(chip, port + ICH_REG_OFF_CIV, ichdev->civ);
2739 		iputbyte(chip, port + ichdev->roff_sr, ICH_FIFOE | ICH_BCIS | ICH_LVBCI);
2740 	}
2741 
2742 	snd_power_change_state(card, SNDRV_CTL_POWER_D0);
2743 	return 0;
2744 }
2745 
2746 static SIMPLE_DEV_PM_OPS(intel8x0_pm, intel8x0_suspend, intel8x0_resume);
2747 #define INTEL8X0_PM_OPS	&intel8x0_pm
2748 #else
2749 #define INTEL8X0_PM_OPS	NULL
2750 #endif /* CONFIG_PM_SLEEP */
2751 
2752 #define INTEL8X0_TESTBUF_SIZE	32768	/* enough large for one shot */
2753 
2754 static void intel8x0_measure_ac97_clock(struct intel8x0 *chip)
2755 {
2756 	struct snd_pcm_substream *subs;
2757 	struct ichdev *ichdev;
2758 	unsigned long port;
2759 	unsigned long pos, pos1, t;
2760 	int civ, timeout = 1000, attempt = 1;
2761 	ktime_t start_time, stop_time;
2762 
2763 	if (chip->ac97_bus->clock != 48000)
2764 		return; /* specified in module option */
2765 
2766       __again:
2767 	subs = chip->pcm[0]->streams[0].substream;
2768 	if (! subs || subs->dma_buffer.bytes < INTEL8X0_TESTBUF_SIZE) {
2769 		dev_warn(chip->card->dev,
2770 			 "no playback buffer allocated - aborting measure ac97 clock\n");
2771 		return;
2772 	}
2773 	ichdev = &chip->ichd[ICHD_PCMOUT];
2774 	ichdev->physbuf = subs->dma_buffer.addr;
2775 	ichdev->size = ichdev->fragsize = INTEL8X0_TESTBUF_SIZE;
2776 	ichdev->substream = NULL; /* don't process interrupts */
2777 
2778 	/* set rate */
2779 	if (snd_ac97_set_rate(chip->ac97[0], AC97_PCM_FRONT_DAC_RATE, 48000) < 0) {
2780 		dev_err(chip->card->dev, "cannot set ac97 rate: clock = %d\n",
2781 			chip->ac97_bus->clock);
2782 		return;
2783 	}
2784 	snd_intel8x0_setup_periods(chip, ichdev);
2785 	port = ichdev->reg_offset;
2786 	spin_lock_irq(&chip->reg_lock);
2787 	chip->in_measurement = 1;
2788 	/* trigger */
2789 	if (chip->device_type != DEVICE_ALI)
2790 		iputbyte(chip, port + ICH_REG_OFF_CR, ICH_IOCE | ICH_STARTBM);
2791 	else {
2792 		iputbyte(chip, port + ICH_REG_OFF_CR, ICH_IOCE);
2793 		iputdword(chip, ICHREG(ALI_DMACR), 1 << ichdev->ali_slot);
2794 	}
2795 	start_time = ktime_get();
2796 	spin_unlock_irq(&chip->reg_lock);
2797 	msleep(50);
2798 	spin_lock_irq(&chip->reg_lock);
2799 	/* check the position */
2800 	do {
2801 		civ = igetbyte(chip, ichdev->reg_offset + ICH_REG_OFF_CIV);
2802 		pos1 = igetword(chip, ichdev->reg_offset + ichdev->roff_picb);
2803 		if (pos1 == 0) {
2804 			udelay(10);
2805 			continue;
2806 		}
2807 		if (civ == igetbyte(chip, ichdev->reg_offset + ICH_REG_OFF_CIV) &&
2808 		    pos1 == igetword(chip, ichdev->reg_offset + ichdev->roff_picb))
2809 			break;
2810 	} while (timeout--);
2811 	if (pos1 == 0) {	/* oops, this value is not reliable */
2812 		pos = 0;
2813 	} else {
2814 		pos = ichdev->fragsize1;
2815 		pos -= pos1 << ichdev->pos_shift;
2816 		pos += ichdev->position;
2817 	}
2818 	chip->in_measurement = 0;
2819 	stop_time = ktime_get();
2820 	/* stop */
2821 	if (chip->device_type == DEVICE_ALI) {
2822 		iputdword(chip, ICHREG(ALI_DMACR), 1 << (ichdev->ali_slot + 16));
2823 		iputbyte(chip, port + ICH_REG_OFF_CR, 0);
2824 		while (igetbyte(chip, port + ICH_REG_OFF_CR))
2825 			;
2826 	} else {
2827 		iputbyte(chip, port + ICH_REG_OFF_CR, 0);
2828 		while (!(igetbyte(chip, port + ichdev->roff_sr) & ICH_DCH))
2829 			;
2830 	}
2831 	iputbyte(chip, port + ICH_REG_OFF_CR, ICH_RESETREGS);
2832 	spin_unlock_irq(&chip->reg_lock);
2833 
2834 	if (pos == 0) {
2835 		dev_err(chip->card->dev,
2836 			"measure - unreliable DMA position..\n");
2837 	      __retry:
2838 		if (attempt < 3) {
2839 			msleep(300);
2840 			attempt++;
2841 			goto __again;
2842 		}
2843 		goto __end;
2844 	}
2845 
2846 	pos /= 4;
2847 	t = ktime_us_delta(stop_time, start_time);
2848 	dev_info(chip->card->dev,
2849 		 "%s: measured %lu usecs (%lu samples)\n", __func__, t, pos);
2850 	if (t == 0) {
2851 		dev_err(chip->card->dev, "?? calculation error..\n");
2852 		goto __retry;
2853 	}
2854 	pos *= 1000;
2855 	pos = (pos / t) * 1000 + ((pos % t) * 1000) / t;
2856 	if (pos < 40000 || pos >= 60000) {
2857 		/* abnormal value. hw problem? */
2858 		dev_info(chip->card->dev, "measured clock %ld rejected\n", pos);
2859 		goto __retry;
2860 	} else if (pos > 40500 && pos < 41500)
2861 		/* first exception - 41000Hz reference clock */
2862 		chip->ac97_bus->clock = 41000;
2863 	else if (pos > 43600 && pos < 44600)
2864 		/* second exception - 44100HZ reference clock */
2865 		chip->ac97_bus->clock = 44100;
2866 	else if (pos < 47500 || pos > 48500)
2867 		/* not 48000Hz, tuning the clock.. */
2868 		chip->ac97_bus->clock = (chip->ac97_bus->clock * 48000) / pos;
2869       __end:
2870 	dev_info(chip->card->dev, "clocking to %d\n", chip->ac97_bus->clock);
2871 	snd_ac97_update_power(chip->ac97[0], AC97_PCM_FRONT_DAC_RATE, 0);
2872 }
2873 
2874 static struct snd_pci_quirk intel8x0_clock_list[] = {
2875 	SND_PCI_QUIRK(0x0e11, 0x008a, "AD1885", 41000),
2876 	SND_PCI_QUIRK(0x1014, 0x0581, "AD1981B", 48000),
2877 	SND_PCI_QUIRK(0x1028, 0x00be, "AD1885", 44100),
2878 	SND_PCI_QUIRK(0x1028, 0x0177, "AD1980", 48000),
2879 	SND_PCI_QUIRK(0x1028, 0x01ad, "AD1981B", 48000),
2880 	SND_PCI_QUIRK(0x1043, 0x80f3, "AD1985", 48000),
2881 	{ }	/* terminator */
2882 };
2883 
2884 static int intel8x0_in_clock_list(struct intel8x0 *chip)
2885 {
2886 	struct pci_dev *pci = chip->pci;
2887 	const struct snd_pci_quirk *wl;
2888 
2889 	wl = snd_pci_quirk_lookup(pci, intel8x0_clock_list);
2890 	if (!wl)
2891 		return 0;
2892 	dev_info(chip->card->dev, "white list rate for %04x:%04x is %i\n",
2893 	       pci->subsystem_vendor, pci->subsystem_device, wl->value);
2894 	chip->ac97_bus->clock = wl->value;
2895 	return 1;
2896 }
2897 
2898 static void snd_intel8x0_proc_read(struct snd_info_entry * entry,
2899 				   struct snd_info_buffer *buffer)
2900 {
2901 	struct intel8x0 *chip = entry->private_data;
2902 	unsigned int tmp;
2903 
2904 	snd_iprintf(buffer, "Intel8x0\n\n");
2905 	if (chip->device_type == DEVICE_ALI)
2906 		return;
2907 	tmp = igetdword(chip, ICHREG(GLOB_STA));
2908 	snd_iprintf(buffer, "Global control        : 0x%08x\n", igetdword(chip, ICHREG(GLOB_CNT)));
2909 	snd_iprintf(buffer, "Global status         : 0x%08x\n", tmp);
2910 	if (chip->device_type == DEVICE_INTEL_ICH4)
2911 		snd_iprintf(buffer, "SDM                   : 0x%08x\n", igetdword(chip, ICHREG(SDM)));
2912 	snd_iprintf(buffer, "AC'97 codecs ready    :");
2913 	if (tmp & chip->codec_isr_bits) {
2914 		int i;
2915 		static const char *codecs[3] = {
2916 			"primary", "secondary", "tertiary"
2917 		};
2918 		for (i = 0; i < chip->max_codecs; i++)
2919 			if (tmp & chip->codec_bit[i])
2920 				snd_iprintf(buffer, " %s", codecs[i]);
2921 	} else
2922 		snd_iprintf(buffer, " none");
2923 	snd_iprintf(buffer, "\n");
2924 	if (chip->device_type == DEVICE_INTEL_ICH4 ||
2925 	    chip->device_type == DEVICE_SIS)
2926 		snd_iprintf(buffer, "AC'97 codecs SDIN     : %i %i %i\n",
2927 			chip->ac97_sdin[0],
2928 			chip->ac97_sdin[1],
2929 			chip->ac97_sdin[2]);
2930 }
2931 
2932 static void snd_intel8x0_proc_init(struct intel8x0 *chip)
2933 {
2934 	struct snd_info_entry *entry;
2935 
2936 	if (! snd_card_proc_new(chip->card, "intel8x0", &entry))
2937 		snd_info_set_text_ops(entry, chip, snd_intel8x0_proc_read);
2938 }
2939 
2940 static int snd_intel8x0_dev_free(struct snd_device *device)
2941 {
2942 	struct intel8x0 *chip = device->device_data;
2943 	return snd_intel8x0_free(chip);
2944 }
2945 
2946 struct ich_reg_info {
2947 	unsigned int int_sta_mask;
2948 	unsigned int offset;
2949 };
2950 
2951 static unsigned int ich_codec_bits[3] = {
2952 	ICH_PCR, ICH_SCR, ICH_TCR
2953 };
2954 static unsigned int sis_codec_bits[3] = {
2955 	ICH_PCR, ICH_SCR, ICH_SIS_TCR
2956 };
2957 
2958 static int snd_intel8x0_inside_vm(struct pci_dev *pci)
2959 {
2960 	int result  = inside_vm;
2961 	char *msg   = NULL;
2962 
2963 	/* check module parameter first (override detection) */
2964 	if (result >= 0) {
2965 		msg = result ? "enable (forced) VM" : "disable (forced) VM";
2966 		goto fini;
2967 	}
2968 
2969 	/* check for known (emulated) devices */
2970 	result = 0;
2971 	if (pci->subsystem_vendor == PCI_SUBVENDOR_ID_REDHAT_QUMRANET &&
2972 	    pci->subsystem_device == PCI_SUBDEVICE_ID_QEMU) {
2973 		/* KVM emulated sound, PCI SSID: 1af4:1100 */
2974 		msg = "enable KVM";
2975 		result = 1;
2976 	} else if (pci->subsystem_vendor == 0x1ab8) {
2977 		/* Parallels VM emulated sound, PCI SSID: 1ab8:xxxx */
2978 		msg = "enable Parallels VM";
2979 		result = 1;
2980 	}
2981 
2982 fini:
2983 	if (msg != NULL)
2984 		dev_info(&pci->dev, "%s optimization\n", msg);
2985 
2986 	return result;
2987 }
2988 
2989 static int snd_intel8x0_create(struct snd_card *card,
2990 			       struct pci_dev *pci,
2991 			       unsigned long device_type,
2992 			       struct intel8x0 **r_intel8x0)
2993 {
2994 	struct intel8x0 *chip;
2995 	int err;
2996 	unsigned int i;
2997 	unsigned int int_sta_masks;
2998 	struct ichdev *ichdev;
2999 	static struct snd_device_ops ops = {
3000 		.dev_free =	snd_intel8x0_dev_free,
3001 	};
3002 
3003 	static unsigned int bdbars[] = {
3004 		3, /* DEVICE_INTEL */
3005 		6, /* DEVICE_INTEL_ICH4 */
3006 		3, /* DEVICE_SIS */
3007 		6, /* DEVICE_ALI */
3008 		4, /* DEVICE_NFORCE */
3009 	};
3010 	static struct ich_reg_info intel_regs[6] = {
3011 		{ ICH_PIINT, 0 },
3012 		{ ICH_POINT, 0x10 },
3013 		{ ICH_MCINT, 0x20 },
3014 		{ ICH_M2INT, 0x40 },
3015 		{ ICH_P2INT, 0x50 },
3016 		{ ICH_SPINT, 0x60 },
3017 	};
3018 	static struct ich_reg_info nforce_regs[4] = {
3019 		{ ICH_PIINT, 0 },
3020 		{ ICH_POINT, 0x10 },
3021 		{ ICH_MCINT, 0x20 },
3022 		{ ICH_NVSPINT, 0x70 },
3023 	};
3024 	static struct ich_reg_info ali_regs[6] = {
3025 		{ ALI_INT_PCMIN, 0x40 },
3026 		{ ALI_INT_PCMOUT, 0x50 },
3027 		{ ALI_INT_MICIN, 0x60 },
3028 		{ ALI_INT_CODECSPDIFOUT, 0x70 },
3029 		{ ALI_INT_SPDIFIN, 0xa0 },
3030 		{ ALI_INT_SPDIFOUT, 0xb0 },
3031 	};
3032 	struct ich_reg_info *tbl;
3033 
3034 	*r_intel8x0 = NULL;
3035 
3036 	if ((err = pci_enable_device(pci)) < 0)
3037 		return err;
3038 
3039 	chip = kzalloc(sizeof(*chip), GFP_KERNEL);
3040 	if (chip == NULL) {
3041 		pci_disable_device(pci);
3042 		return -ENOMEM;
3043 	}
3044 	spin_lock_init(&chip->reg_lock);
3045 	chip->device_type = device_type;
3046 	chip->card = card;
3047 	chip->pci = pci;
3048 	chip->irq = -1;
3049 
3050 	/* module parameters */
3051 	chip->buggy_irq = buggy_irq;
3052 	chip->buggy_semaphore = buggy_semaphore;
3053 	if (xbox)
3054 		chip->xbox = 1;
3055 
3056 	chip->inside_vm = snd_intel8x0_inside_vm(pci);
3057 
3058 	if (pci->vendor == PCI_VENDOR_ID_INTEL &&
3059 	    pci->device == PCI_DEVICE_ID_INTEL_440MX)
3060 		chip->fix_nocache = 1; /* enable workaround */
3061 
3062 	if ((err = pci_request_regions(pci, card->shortname)) < 0) {
3063 		kfree(chip);
3064 		pci_disable_device(pci);
3065 		return err;
3066 	}
3067 
3068 	if (device_type == DEVICE_ALI) {
3069 		/* ALI5455 has no ac97 region */
3070 		chip->bmaddr = pci_iomap(pci, 0, 0);
3071 		goto port_inited;
3072 	}
3073 
3074 	if (pci_resource_flags(pci, 2) & IORESOURCE_MEM) /* ICH4 and Nforce */
3075 		chip->addr = pci_iomap(pci, 2, 0);
3076 	else
3077 		chip->addr = pci_iomap(pci, 0, 0);
3078 	if (!chip->addr) {
3079 		dev_err(card->dev, "AC'97 space ioremap problem\n");
3080 		snd_intel8x0_free(chip);
3081 		return -EIO;
3082 	}
3083 	if (pci_resource_flags(pci, 3) & IORESOURCE_MEM) /* ICH4 */
3084 		chip->bmaddr = pci_iomap(pci, 3, 0);
3085 	else
3086 		chip->bmaddr = pci_iomap(pci, 1, 0);
3087 
3088  port_inited:
3089 	if (!chip->bmaddr) {
3090 		dev_err(card->dev, "Controller space ioremap problem\n");
3091 		snd_intel8x0_free(chip);
3092 		return -EIO;
3093 	}
3094 	chip->bdbars_count = bdbars[device_type];
3095 
3096 	/* initialize offsets */
3097 	switch (device_type) {
3098 	case DEVICE_NFORCE:
3099 		tbl = nforce_regs;
3100 		break;
3101 	case DEVICE_ALI:
3102 		tbl = ali_regs;
3103 		break;
3104 	default:
3105 		tbl = intel_regs;
3106 		break;
3107 	}
3108 	for (i = 0; i < chip->bdbars_count; i++) {
3109 		ichdev = &chip->ichd[i];
3110 		ichdev->ichd = i;
3111 		ichdev->reg_offset = tbl[i].offset;
3112 		ichdev->int_sta_mask = tbl[i].int_sta_mask;
3113 		if (device_type == DEVICE_SIS) {
3114 			/* SiS 7012 swaps the registers */
3115 			ichdev->roff_sr = ICH_REG_OFF_PICB;
3116 			ichdev->roff_picb = ICH_REG_OFF_SR;
3117 		} else {
3118 			ichdev->roff_sr = ICH_REG_OFF_SR;
3119 			ichdev->roff_picb = ICH_REG_OFF_PICB;
3120 		}
3121 		if (device_type == DEVICE_ALI)
3122 			ichdev->ali_slot = (ichdev->reg_offset - 0x40) / 0x10;
3123 		/* SIS7012 handles the pcm data in bytes, others are in samples */
3124 		ichdev->pos_shift = (device_type == DEVICE_SIS) ? 0 : 1;
3125 	}
3126 
3127 	/* allocate buffer descriptor lists */
3128 	/* the start of each lists must be aligned to 8 bytes */
3129 	if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci),
3130 				chip->bdbars_count * sizeof(u32) * ICH_MAX_FRAGS * 2,
3131 				&chip->bdbars) < 0) {
3132 		snd_intel8x0_free(chip);
3133 		dev_err(card->dev, "cannot allocate buffer descriptors\n");
3134 		return -ENOMEM;
3135 	}
3136 	/* tables must be aligned to 8 bytes here, but the kernel pages
3137 	   are much bigger, so we don't care (on i386) */
3138 	/* workaround for 440MX */
3139 	if (chip->fix_nocache)
3140 		fill_nocache(chip->bdbars.area, chip->bdbars.bytes, 1);
3141 	int_sta_masks = 0;
3142 	for (i = 0; i < chip->bdbars_count; i++) {
3143 		ichdev = &chip->ichd[i];
3144 		ichdev->bdbar = ((u32 *)chip->bdbars.area) +
3145 			(i * ICH_MAX_FRAGS * 2);
3146 		ichdev->bdbar_addr = chip->bdbars.addr +
3147 			(i * sizeof(u32) * ICH_MAX_FRAGS * 2);
3148 		int_sta_masks |= ichdev->int_sta_mask;
3149 	}
3150 	chip->int_sta_reg = device_type == DEVICE_ALI ?
3151 		ICH_REG_ALI_INTERRUPTSR : ICH_REG_GLOB_STA;
3152 	chip->int_sta_mask = int_sta_masks;
3153 
3154 	pci_set_master(pci);
3155 
3156 	switch(chip->device_type) {
3157 	case DEVICE_INTEL_ICH4:
3158 		/* ICH4 can have three codecs */
3159 		chip->max_codecs = 3;
3160 		chip->codec_bit = ich_codec_bits;
3161 		chip->codec_ready_bits = ICH_PRI | ICH_SRI | ICH_TRI;
3162 		break;
3163 	case DEVICE_SIS:
3164 		/* recent SIS7012 can have three codecs */
3165 		chip->max_codecs = 3;
3166 		chip->codec_bit = sis_codec_bits;
3167 		chip->codec_ready_bits = ICH_PRI | ICH_SRI | ICH_SIS_TRI;
3168 		break;
3169 	default:
3170 		/* others up to two codecs */
3171 		chip->max_codecs = 2;
3172 		chip->codec_bit = ich_codec_bits;
3173 		chip->codec_ready_bits = ICH_PRI | ICH_SRI;
3174 		break;
3175 	}
3176 	for (i = 0; i < chip->max_codecs; i++)
3177 		chip->codec_isr_bits |= chip->codec_bit[i];
3178 
3179 	if ((err = snd_intel8x0_chip_init(chip, 1)) < 0) {
3180 		snd_intel8x0_free(chip);
3181 		return err;
3182 	}
3183 
3184 	/* request irq after initializaing int_sta_mask, etc */
3185 	if (request_irq(pci->irq, snd_intel8x0_interrupt,
3186 			IRQF_SHARED, KBUILD_MODNAME, chip)) {
3187 		dev_err(card->dev, "unable to grab IRQ %d\n", pci->irq);
3188 		snd_intel8x0_free(chip);
3189 		return -EBUSY;
3190 	}
3191 	chip->irq = pci->irq;
3192 
3193 	if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
3194 		snd_intel8x0_free(chip);
3195 		return err;
3196 	}
3197 
3198 	*r_intel8x0 = chip;
3199 	return 0;
3200 }
3201 
3202 static struct shortname_table {
3203 	unsigned int id;
3204 	const char *s;
3205 } shortnames[] = {
3206 	{ PCI_DEVICE_ID_INTEL_82801AA_5, "Intel 82801AA-ICH" },
3207 	{ PCI_DEVICE_ID_INTEL_82801AB_5, "Intel 82901AB-ICH0" },
3208 	{ PCI_DEVICE_ID_INTEL_82801BA_4, "Intel 82801BA-ICH2" },
3209 	{ PCI_DEVICE_ID_INTEL_440MX, "Intel 440MX" },
3210 	{ PCI_DEVICE_ID_INTEL_82801CA_5, "Intel 82801CA-ICH3" },
3211 	{ PCI_DEVICE_ID_INTEL_82801DB_5, "Intel 82801DB-ICH4" },
3212 	{ PCI_DEVICE_ID_INTEL_82801EB_5, "Intel ICH5" },
3213 	{ PCI_DEVICE_ID_INTEL_ESB_5, "Intel 6300ESB" },
3214 	{ PCI_DEVICE_ID_INTEL_ICH6_18, "Intel ICH6" },
3215 	{ PCI_DEVICE_ID_INTEL_ICH7_20, "Intel ICH7" },
3216 	{ PCI_DEVICE_ID_INTEL_ESB2_14, "Intel ESB2" },
3217 	{ PCI_DEVICE_ID_SI_7012, "SiS SI7012" },
3218 	{ PCI_DEVICE_ID_NVIDIA_MCP1_AUDIO, "NVidia nForce" },
3219 	{ PCI_DEVICE_ID_NVIDIA_MCP2_AUDIO, "NVidia nForce2" },
3220 	{ PCI_DEVICE_ID_NVIDIA_MCP3_AUDIO, "NVidia nForce3" },
3221 	{ PCI_DEVICE_ID_NVIDIA_CK8S_AUDIO, "NVidia CK8S" },
3222 	{ PCI_DEVICE_ID_NVIDIA_CK804_AUDIO, "NVidia CK804" },
3223 	{ PCI_DEVICE_ID_NVIDIA_CK8_AUDIO, "NVidia CK8" },
3224 	{ 0x003a, "NVidia MCP04" },
3225 	{ 0x746d, "AMD AMD8111" },
3226 	{ 0x7445, "AMD AMD768" },
3227 	{ 0x5455, "ALi M5455" },
3228 	{ 0, NULL },
3229 };
3230 
3231 static struct snd_pci_quirk spdif_aclink_defaults[] = {
3232 	SND_PCI_QUIRK(0x147b, 0x1c1a, "ASUS KN8", 1),
3233 	{ } /* end */
3234 };
3235 
3236 /* look up white/black list for SPDIF over ac-link */
3237 static int check_default_spdif_aclink(struct pci_dev *pci)
3238 {
3239 	const struct snd_pci_quirk *w;
3240 
3241 	w = snd_pci_quirk_lookup(pci, spdif_aclink_defaults);
3242 	if (w) {
3243 		if (w->value)
3244 			dev_dbg(&pci->dev,
3245 				"Using SPDIF over AC-Link for %s\n",
3246 				    snd_pci_quirk_name(w));
3247 		else
3248 			dev_dbg(&pci->dev,
3249 				"Using integrated SPDIF DMA for %s\n",
3250 				    snd_pci_quirk_name(w));
3251 		return w->value;
3252 	}
3253 	return 0;
3254 }
3255 
3256 static int snd_intel8x0_probe(struct pci_dev *pci,
3257 			      const struct pci_device_id *pci_id)
3258 {
3259 	struct snd_card *card;
3260 	struct intel8x0 *chip;
3261 	int err;
3262 	struct shortname_table *name;
3263 
3264 	err = snd_card_new(&pci->dev, index, id, THIS_MODULE, 0, &card);
3265 	if (err < 0)
3266 		return err;
3267 
3268 	if (spdif_aclink < 0)
3269 		spdif_aclink = check_default_spdif_aclink(pci);
3270 
3271 	strcpy(card->driver, "ICH");
3272 	if (!spdif_aclink) {
3273 		switch (pci_id->driver_data) {
3274 		case DEVICE_NFORCE:
3275 			strcpy(card->driver, "NFORCE");
3276 			break;
3277 		case DEVICE_INTEL_ICH4:
3278 			strcpy(card->driver, "ICH4");
3279 		}
3280 	}
3281 
3282 	strcpy(card->shortname, "Intel ICH");
3283 	for (name = shortnames; name->id; name++) {
3284 		if (pci->device == name->id) {
3285 			strcpy(card->shortname, name->s);
3286 			break;
3287 		}
3288 	}
3289 
3290 	if (buggy_irq < 0) {
3291 		/* some Nforce[2] and ICH boards have problems with IRQ handling.
3292 		 * Needs to return IRQ_HANDLED for unknown irqs.
3293 		 */
3294 		if (pci_id->driver_data == DEVICE_NFORCE)
3295 			buggy_irq = 1;
3296 		else
3297 			buggy_irq = 0;
3298 	}
3299 
3300 	if ((err = snd_intel8x0_create(card, pci, pci_id->driver_data,
3301 				       &chip)) < 0) {
3302 		snd_card_free(card);
3303 		return err;
3304 	}
3305 	card->private_data = chip;
3306 
3307 	if ((err = snd_intel8x0_mixer(chip, ac97_clock, ac97_quirk)) < 0) {
3308 		snd_card_free(card);
3309 		return err;
3310 	}
3311 	if ((err = snd_intel8x0_pcm(chip)) < 0) {
3312 		snd_card_free(card);
3313 		return err;
3314 	}
3315 
3316 	snd_intel8x0_proc_init(chip);
3317 
3318 	snprintf(card->longname, sizeof(card->longname),
3319 		 "%s with %s at irq %i", card->shortname,
3320 		 snd_ac97_get_short_name(chip->ac97[0]), chip->irq);
3321 
3322 	if (ac97_clock == 0 || ac97_clock == 1) {
3323 		if (ac97_clock == 0) {
3324 			if (intel8x0_in_clock_list(chip) == 0)
3325 				intel8x0_measure_ac97_clock(chip);
3326 		} else {
3327 			intel8x0_measure_ac97_clock(chip);
3328 		}
3329 	}
3330 
3331 	if ((err = snd_card_register(card)) < 0) {
3332 		snd_card_free(card);
3333 		return err;
3334 	}
3335 	pci_set_drvdata(pci, card);
3336 	return 0;
3337 }
3338 
3339 static void snd_intel8x0_remove(struct pci_dev *pci)
3340 {
3341 	snd_card_free(pci_get_drvdata(pci));
3342 }
3343 
3344 static struct pci_driver intel8x0_driver = {
3345 	.name = KBUILD_MODNAME,
3346 	.id_table = snd_intel8x0_ids,
3347 	.probe = snd_intel8x0_probe,
3348 	.remove = snd_intel8x0_remove,
3349 	.driver = {
3350 		.pm = INTEL8X0_PM_OPS,
3351 	},
3352 };
3353 
3354 module_pci_driver(intel8x0_driver);
3355