xref: /openbmc/linux/sound/pci/intel8x0.c (revision 7b73a9c8)
1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3  *   ALSA driver for Intel ICH (i8x0) chipsets
4  *
5  *	Copyright (c) 2000 Jaroslav Kysela <perex@perex.cz>
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  */
13 
14 #include <linux/io.h>
15 #include <linux/delay.h>
16 #include <linux/interrupt.h>
17 #include <linux/init.h>
18 #include <linux/pci.h>
19 #include <linux/slab.h>
20 #include <linux/module.h>
21 #include <sound/core.h>
22 #include <sound/pcm.h>
23 #include <sound/ac97_codec.h>
24 #include <sound/info.h>
25 #include <sound/initval.h>
26 
27 MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
28 MODULE_DESCRIPTION("Intel 82801AA,82901AB,i810,i820,i830,i840,i845,MX440; SiS 7012; Ali 5455");
29 MODULE_LICENSE("GPL");
30 MODULE_SUPPORTED_DEVICE("{{Intel,82801AA-ICH},"
31 		"{Intel,82901AB-ICH0},"
32 		"{Intel,82801BA-ICH2},"
33 		"{Intel,82801CA-ICH3},"
34 		"{Intel,82801DB-ICH4},"
35 		"{Intel,ICH5},"
36 		"{Intel,ICH6},"
37 		"{Intel,ICH7},"
38 		"{Intel,6300ESB},"
39 		"{Intel,ESB2},"
40 		"{Intel,MX440},"
41 		"{SiS,SI7012},"
42 		"{NVidia,nForce Audio},"
43 		"{NVidia,nForce2 Audio},"
44 		"{NVidia,nForce3 Audio},"
45 		"{NVidia,MCP04},"
46 		"{NVidia,MCP501},"
47 		"{NVidia,CK804},"
48 		"{NVidia,CK8},"
49 		"{NVidia,CK8S},"
50 		"{AMD,AMD768},"
51 		"{AMD,AMD8111},"
52 	        "{ALI,M5455}}");
53 
54 static int index = SNDRV_DEFAULT_IDX1;	/* Index 0-MAX */
55 static char *id = SNDRV_DEFAULT_STR1;	/* ID for this card */
56 static int ac97_clock;
57 static char *ac97_quirk;
58 static bool buggy_semaphore;
59 static int buggy_irq = -1; /* auto-check */
60 static bool xbox;
61 static int spdif_aclink = -1;
62 static int inside_vm = -1;
63 
64 module_param(index, int, 0444);
65 MODULE_PARM_DESC(index, "Index value for Intel i8x0 soundcard.");
66 module_param(id, charp, 0444);
67 MODULE_PARM_DESC(id, "ID string for Intel i8x0 soundcard.");
68 module_param(ac97_clock, int, 0444);
69 MODULE_PARM_DESC(ac97_clock, "AC'97 codec clock (0 = whitelist + auto-detect, 1 = force autodetect).");
70 module_param(ac97_quirk, charp, 0444);
71 MODULE_PARM_DESC(ac97_quirk, "AC'97 workaround for strange hardware.");
72 module_param(buggy_semaphore, bool, 0444);
73 MODULE_PARM_DESC(buggy_semaphore, "Enable workaround for hardwares with problematic codec semaphores.");
74 module_param(buggy_irq, bint, 0444);
75 MODULE_PARM_DESC(buggy_irq, "Enable workaround for buggy interrupts on some motherboards.");
76 module_param(xbox, bool, 0444);
77 MODULE_PARM_DESC(xbox, "Set to 1 for Xbox, if you have problems with the AC'97 codec detection.");
78 module_param(spdif_aclink, int, 0444);
79 MODULE_PARM_DESC(spdif_aclink, "S/PDIF over AC-link.");
80 module_param(inside_vm, bint, 0444);
81 MODULE_PARM_DESC(inside_vm, "KVM/Parallels optimization.");
82 
83 /* just for backward compatibility */
84 static bool enable;
85 module_param(enable, bool, 0444);
86 static int joystick;
87 module_param(joystick, int, 0444);
88 
89 /*
90  *  Direct registers
91  */
92 enum { DEVICE_INTEL, DEVICE_INTEL_ICH4, DEVICE_SIS, DEVICE_ALI, DEVICE_NFORCE };
93 
94 #define ICHREG(x) ICH_REG_##x
95 
96 #define DEFINE_REGSET(name,base) \
97 enum { \
98 	ICH_REG_##name##_BDBAR	= base + 0x0,	/* dword - buffer descriptor list base address */ \
99 	ICH_REG_##name##_CIV	= base + 0x04,	/* byte - current index value */ \
100 	ICH_REG_##name##_LVI	= base + 0x05,	/* byte - last valid index */ \
101 	ICH_REG_##name##_SR	= base + 0x06,	/* byte - status register */ \
102 	ICH_REG_##name##_PICB	= base + 0x08,	/* word - position in current buffer */ \
103 	ICH_REG_##name##_PIV	= base + 0x0a,	/* byte - prefetched index value */ \
104 	ICH_REG_##name##_CR	= base + 0x0b,	/* byte - control register */ \
105 };
106 
107 /* busmaster blocks */
108 DEFINE_REGSET(OFF, 0);		/* offset */
109 DEFINE_REGSET(PI, 0x00);	/* PCM in */
110 DEFINE_REGSET(PO, 0x10);	/* PCM out */
111 DEFINE_REGSET(MC, 0x20);	/* Mic in */
112 
113 /* ICH4 busmaster blocks */
114 DEFINE_REGSET(MC2, 0x40);	/* Mic in 2 */
115 DEFINE_REGSET(PI2, 0x50);	/* PCM in 2 */
116 DEFINE_REGSET(SP, 0x60);	/* SPDIF out */
117 
118 /* values for each busmaster block */
119 
120 /* LVI */
121 #define ICH_REG_LVI_MASK		0x1f
122 
123 /* SR */
124 #define ICH_FIFOE			0x10	/* FIFO error */
125 #define ICH_BCIS			0x08	/* buffer completion interrupt status */
126 #define ICH_LVBCI			0x04	/* last valid buffer completion interrupt */
127 #define ICH_CELV			0x02	/* current equals last valid */
128 #define ICH_DCH				0x01	/* DMA controller halted */
129 
130 /* PIV */
131 #define ICH_REG_PIV_MASK		0x1f	/* mask */
132 
133 /* CR */
134 #define ICH_IOCE			0x10	/* interrupt on completion enable */
135 #define ICH_FEIE			0x08	/* fifo error interrupt enable */
136 #define ICH_LVBIE			0x04	/* last valid buffer interrupt enable */
137 #define ICH_RESETREGS			0x02	/* reset busmaster registers */
138 #define ICH_STARTBM			0x01	/* start busmaster operation */
139 
140 
141 /* global block */
142 #define ICH_REG_GLOB_CNT		0x2c	/* dword - global control */
143 #define   ICH_PCM_SPDIF_MASK	0xc0000000	/* s/pdif pcm slot mask (ICH4) */
144 #define   ICH_PCM_SPDIF_NONE	0x00000000	/* reserved - undefined */
145 #define   ICH_PCM_SPDIF_78	0x40000000	/* s/pdif pcm on slots 7&8 */
146 #define   ICH_PCM_SPDIF_69	0x80000000	/* s/pdif pcm on slots 6&9 */
147 #define   ICH_PCM_SPDIF_1011	0xc0000000	/* s/pdif pcm on slots 10&11 */
148 #define   ICH_PCM_20BIT		0x00400000	/* 20-bit samples (ICH4) */
149 #define   ICH_PCM_246_MASK	0x00300000	/* chan mask (not all chips) */
150 #define   ICH_PCM_8		0x00300000      /* 8 channels (not all chips) */
151 #define   ICH_PCM_6		0x00200000	/* 6 channels (not all chips) */
152 #define   ICH_PCM_4		0x00100000	/* 4 channels (not all chips) */
153 #define   ICH_PCM_2		0x00000000	/* 2 channels (stereo) */
154 #define   ICH_SIS_PCM_246_MASK	0x000000c0	/* 6 channels (SIS7012) */
155 #define   ICH_SIS_PCM_6		0x00000080	/* 6 channels (SIS7012) */
156 #define   ICH_SIS_PCM_4		0x00000040	/* 4 channels (SIS7012) */
157 #define   ICH_SIS_PCM_2		0x00000000	/* 2 channels (SIS7012) */
158 #define   ICH_TRIE		0x00000040	/* tertiary resume interrupt enable */
159 #define   ICH_SRIE		0x00000020	/* secondary resume interrupt enable */
160 #define   ICH_PRIE		0x00000010	/* primary resume interrupt enable */
161 #define   ICH_ACLINK		0x00000008	/* AClink shut off */
162 #define   ICH_AC97WARM		0x00000004	/* AC'97 warm reset */
163 #define   ICH_AC97COLD		0x00000002	/* AC'97 cold reset */
164 #define   ICH_GIE		0x00000001	/* GPI interrupt enable */
165 #define ICH_REG_GLOB_STA		0x30	/* dword - global status */
166 #define   ICH_TRI		0x20000000	/* ICH4: tertiary (AC_SDIN2) resume interrupt */
167 #define   ICH_TCR		0x10000000	/* ICH4: tertiary (AC_SDIN2) codec ready */
168 #define   ICH_BCS		0x08000000	/* ICH4: bit clock stopped */
169 #define   ICH_SPINT		0x04000000	/* ICH4: S/PDIF interrupt */
170 #define   ICH_P2INT		0x02000000	/* ICH4: PCM2-In interrupt */
171 #define   ICH_M2INT		0x01000000	/* ICH4: Mic2-In interrupt */
172 #define   ICH_SAMPLE_CAP	0x00c00000	/* ICH4: sample capability bits (RO) */
173 #define   ICH_SAMPLE_16_20	0x00400000	/* ICH4: 16- and 20-bit samples */
174 #define   ICH_MULTICHAN_CAP	0x00300000	/* ICH4: multi-channel capability bits (RO) */
175 #define   ICH_SIS_TRI		0x00080000	/* SIS: tertiary resume irq */
176 #define   ICH_SIS_TCR		0x00040000	/* SIS: tertiary codec ready */
177 #define   ICH_MD3		0x00020000	/* modem power down semaphore */
178 #define   ICH_AD3		0x00010000	/* audio power down semaphore */
179 #define   ICH_RCS		0x00008000	/* read completion status */
180 #define   ICH_BIT3		0x00004000	/* bit 3 slot 12 */
181 #define   ICH_BIT2		0x00002000	/* bit 2 slot 12 */
182 #define   ICH_BIT1		0x00001000	/* bit 1 slot 12 */
183 #define   ICH_SRI		0x00000800	/* secondary (AC_SDIN1) resume interrupt */
184 #define   ICH_PRI		0x00000400	/* primary (AC_SDIN0) resume interrupt */
185 #define   ICH_SCR		0x00000200	/* secondary (AC_SDIN1) codec ready */
186 #define   ICH_PCR		0x00000100	/* primary (AC_SDIN0) codec ready */
187 #define   ICH_MCINT		0x00000080	/* MIC capture interrupt */
188 #define   ICH_POINT		0x00000040	/* playback interrupt */
189 #define   ICH_PIINT		0x00000020	/* capture interrupt */
190 #define   ICH_NVSPINT		0x00000010	/* nforce spdif interrupt */
191 #define   ICH_MOINT		0x00000004	/* modem playback interrupt */
192 #define   ICH_MIINT		0x00000002	/* modem capture interrupt */
193 #define   ICH_GSCI		0x00000001	/* GPI status change interrupt */
194 #define ICH_REG_ACC_SEMA		0x34	/* byte - codec write semaphore */
195 #define   ICH_CAS		0x01		/* codec access semaphore */
196 #define ICH_REG_SDM		0x80
197 #define   ICH_DI2L_MASK		0x000000c0	/* PCM In 2, Mic In 2 data in line */
198 #define   ICH_DI2L_SHIFT	6
199 #define   ICH_DI1L_MASK		0x00000030	/* PCM In 1, Mic In 1 data in line */
200 #define   ICH_DI1L_SHIFT	4
201 #define   ICH_SE		0x00000008	/* steer enable */
202 #define   ICH_LDI_MASK		0x00000003	/* last codec read data input */
203 
204 #define ICH_MAX_FRAGS		32		/* max hw frags */
205 
206 
207 /*
208  * registers for Ali5455
209  */
210 
211 /* ALi 5455 busmaster blocks */
212 DEFINE_REGSET(AL_PI, 0x40);	/* ALi PCM in */
213 DEFINE_REGSET(AL_PO, 0x50);	/* Ali PCM out */
214 DEFINE_REGSET(AL_MC, 0x60);	/* Ali Mic in */
215 DEFINE_REGSET(AL_CDC_SPO, 0x70);	/* Ali Codec SPDIF out */
216 DEFINE_REGSET(AL_CENTER, 0x80);		/* Ali center out */
217 DEFINE_REGSET(AL_LFE, 0x90);		/* Ali center out */
218 DEFINE_REGSET(AL_CLR_SPI, 0xa0);	/* Ali Controller SPDIF in */
219 DEFINE_REGSET(AL_CLR_SPO, 0xb0);	/* Ali Controller SPDIF out */
220 DEFINE_REGSET(AL_I2S, 0xc0);	/* Ali I2S in */
221 DEFINE_REGSET(AL_PI2, 0xd0);	/* Ali PCM2 in */
222 DEFINE_REGSET(AL_MC2, 0xe0);	/* Ali Mic2 in */
223 
224 enum {
225 	ICH_REG_ALI_SCR = 0x00,		/* System Control Register */
226 	ICH_REG_ALI_SSR = 0x04,		/* System Status Register  */
227 	ICH_REG_ALI_DMACR = 0x08,	/* DMA Control Register    */
228 	ICH_REG_ALI_FIFOCR1 = 0x0c,	/* FIFO Control Register 1  */
229 	ICH_REG_ALI_INTERFACECR = 0x10,	/* Interface Control Register */
230 	ICH_REG_ALI_INTERRUPTCR = 0x14,	/* Interrupt control Register */
231 	ICH_REG_ALI_INTERRUPTSR = 0x18,	/* Interrupt  Status Register */
232 	ICH_REG_ALI_FIFOCR2 = 0x1c,	/* FIFO Control Register 2   */
233 	ICH_REG_ALI_CPR = 0x20,		/* Command Port Register     */
234 	ICH_REG_ALI_CPR_ADDR = 0x22,	/* ac97 addr write */
235 	ICH_REG_ALI_SPR = 0x24,		/* Status Port Register      */
236 	ICH_REG_ALI_SPR_ADDR = 0x26,	/* ac97 addr read */
237 	ICH_REG_ALI_FIFOCR3 = 0x2c,	/* FIFO Control Register 3  */
238 	ICH_REG_ALI_TTSR = 0x30,	/* Transmit Tag Slot Register */
239 	ICH_REG_ALI_RTSR = 0x34,	/* Receive Tag Slot  Register */
240 	ICH_REG_ALI_CSPSR = 0x38,	/* Command/Status Port Status Register */
241 	ICH_REG_ALI_CAS = 0x3c,		/* Codec Write Semaphore Register */
242 	ICH_REG_ALI_HWVOL = 0xf0,	/* hardware volume control/status */
243 	ICH_REG_ALI_I2SCR = 0xf4,	/* I2S control/status */
244 	ICH_REG_ALI_SPDIFCSR = 0xf8,	/* spdif channel status register  */
245 	ICH_REG_ALI_SPDIFICS = 0xfc,	/* spdif interface control/status  */
246 };
247 
248 #define ALI_CAS_SEM_BUSY	0x80000000
249 #define ALI_CPR_ADDR_SECONDARY	0x100
250 #define ALI_CPR_ADDR_READ	0x80
251 #define ALI_CSPSR_CODEC_READY	0x08
252 #define ALI_CSPSR_READ_OK	0x02
253 #define ALI_CSPSR_WRITE_OK	0x01
254 
255 /* interrupts for the whole chip by interrupt status register finish */
256 
257 #define ALI_INT_MICIN2		(1<<26)
258 #define ALI_INT_PCMIN2		(1<<25)
259 #define ALI_INT_I2SIN		(1<<24)
260 #define ALI_INT_SPDIFOUT	(1<<23)	/* controller spdif out INTERRUPT */
261 #define ALI_INT_SPDIFIN		(1<<22)
262 #define ALI_INT_LFEOUT		(1<<21)
263 #define ALI_INT_CENTEROUT	(1<<20)
264 #define ALI_INT_CODECSPDIFOUT	(1<<19)
265 #define ALI_INT_MICIN		(1<<18)
266 #define ALI_INT_PCMOUT		(1<<17)
267 #define ALI_INT_PCMIN		(1<<16)
268 #define ALI_INT_CPRAIS		(1<<7)	/* command port available */
269 #define ALI_INT_SPRAIS		(1<<5)	/* status port available */
270 #define ALI_INT_GPIO		(1<<1)
271 #define ALI_INT_MASK		(ALI_INT_SPDIFOUT|ALI_INT_CODECSPDIFOUT|\
272 				 ALI_INT_MICIN|ALI_INT_PCMOUT|ALI_INT_PCMIN)
273 
274 #define ICH_ALI_SC_RESET	(1<<31)	/* master reset */
275 #define ICH_ALI_SC_AC97_DBL	(1<<30)
276 #define ICH_ALI_SC_CODEC_SPDF	(3<<20)	/* 1=7/8, 2=6/9, 3=10/11 */
277 #define ICH_ALI_SC_IN_BITS	(3<<18)
278 #define ICH_ALI_SC_OUT_BITS	(3<<16)
279 #define ICH_ALI_SC_6CH_CFG	(3<<14)
280 #define ICH_ALI_SC_PCM_4	(1<<8)
281 #define ICH_ALI_SC_PCM_6	(2<<8)
282 #define ICH_ALI_SC_PCM_246_MASK	(3<<8)
283 
284 #define ICH_ALI_SS_SEC_ID	(3<<5)
285 #define ICH_ALI_SS_PRI_ID	(3<<3)
286 
287 #define ICH_ALI_IF_AC97SP	(1<<21)
288 #define ICH_ALI_IF_MC		(1<<20)
289 #define ICH_ALI_IF_PI		(1<<19)
290 #define ICH_ALI_IF_MC2		(1<<18)
291 #define ICH_ALI_IF_PI2		(1<<17)
292 #define ICH_ALI_IF_LINE_SRC	(1<<15)	/* 0/1 = slot 3/6 */
293 #define ICH_ALI_IF_MIC_SRC	(1<<14)	/* 0/1 = slot 3/6 */
294 #define ICH_ALI_IF_SPDF_SRC	(3<<12)	/* 00 = PCM, 01 = AC97-in, 10 = spdif-in, 11 = i2s */
295 #define ICH_ALI_IF_AC97_OUT	(3<<8)	/* 00 = PCM, 10 = spdif-in, 11 = i2s */
296 #define ICH_ALI_IF_PO_SPDF	(1<<3)
297 #define ICH_ALI_IF_PO		(1<<1)
298 
299 /*
300  *
301  */
302 
303 enum {
304 	ICHD_PCMIN,
305 	ICHD_PCMOUT,
306 	ICHD_MIC,
307 	ICHD_MIC2,
308 	ICHD_PCM2IN,
309 	ICHD_SPBAR,
310 	ICHD_LAST = ICHD_SPBAR
311 };
312 enum {
313 	NVD_PCMIN,
314 	NVD_PCMOUT,
315 	NVD_MIC,
316 	NVD_SPBAR,
317 	NVD_LAST = NVD_SPBAR
318 };
319 enum {
320 	ALID_PCMIN,
321 	ALID_PCMOUT,
322 	ALID_MIC,
323 	ALID_AC97SPDIFOUT,
324 	ALID_SPDIFIN,
325 	ALID_SPDIFOUT,
326 	ALID_LAST = ALID_SPDIFOUT
327 };
328 
329 #define get_ichdev(substream) (substream->runtime->private_data)
330 
331 struct ichdev {
332 	unsigned int ichd;			/* ich device number */
333 	unsigned long reg_offset;		/* offset to bmaddr */
334 	__le32 *bdbar;				/* CPU address (32bit) */
335 	unsigned int bdbar_addr;		/* PCI bus address (32bit) */
336 	struct snd_pcm_substream *substream;
337 	unsigned int physbuf;			/* physical address (32bit) */
338         unsigned int size;
339         unsigned int fragsize;
340         unsigned int fragsize1;
341         unsigned int position;
342 	unsigned int pos_shift;
343 	unsigned int last_pos;
344         int frags;
345         int lvi;
346         int lvi_frag;
347 	int civ;
348 	int ack;
349 	int ack_reload;
350 	unsigned int ack_bit;
351 	unsigned int roff_sr;
352 	unsigned int roff_picb;
353 	unsigned int int_sta_mask;		/* interrupt status mask */
354 	unsigned int ali_slot;			/* ALI DMA slot */
355 	struct ac97_pcm *pcm;
356 	int pcm_open_flag;
357 	unsigned int suspended: 1;
358 };
359 
360 struct intel8x0 {
361 	unsigned int device_type;
362 
363 	int irq;
364 
365 	void __iomem *addr;
366 	void __iomem *bmaddr;
367 
368 	struct pci_dev *pci;
369 	struct snd_card *card;
370 
371 	int pcm_devs;
372 	struct snd_pcm *pcm[6];
373 	struct ichdev ichd[6];
374 
375 	unsigned multi4: 1,
376 		 multi6: 1,
377 		 multi8 :1,
378 		 dra: 1,
379 		 smp20bit: 1;
380 	unsigned in_ac97_init: 1,
381 		 in_sdin_init: 1;
382 	unsigned in_measurement: 1;	/* during ac97 clock measurement */
383 	unsigned fix_nocache: 1; 	/* workaround for 440MX */
384 	unsigned buggy_irq: 1;		/* workaround for buggy mobos */
385 	unsigned xbox: 1;		/* workaround for Xbox AC'97 detection */
386 	unsigned buggy_semaphore: 1;	/* workaround for buggy codec semaphore */
387 	unsigned inside_vm: 1;		/* enable VM optimization */
388 
389 	int spdif_idx;	/* SPDIF BAR index; *_SPBAR or -1 if use PCMOUT */
390 	unsigned int sdm_saved;	/* SDM reg value */
391 
392 	struct snd_ac97_bus *ac97_bus;
393 	struct snd_ac97 *ac97[3];
394 	unsigned int ac97_sdin[3];
395 	unsigned int max_codecs, ncodecs;
396 	unsigned int *codec_bit;
397 	unsigned int codec_isr_bits;
398 	unsigned int codec_ready_bits;
399 
400 	spinlock_t reg_lock;
401 
402 	u32 bdbars_count;
403 	struct snd_dma_buffer bdbars;
404 	u32 int_sta_reg;		/* interrupt status register */
405 	u32 int_sta_mask;		/* interrupt status mask */
406 };
407 
408 static const struct pci_device_id snd_intel8x0_ids[] = {
409 	{ PCI_VDEVICE(INTEL, 0x2415), DEVICE_INTEL },	/* 82801AA */
410 	{ PCI_VDEVICE(INTEL, 0x2425), DEVICE_INTEL },	/* 82901AB */
411 	{ PCI_VDEVICE(INTEL, 0x2445), DEVICE_INTEL },	/* 82801BA */
412 	{ PCI_VDEVICE(INTEL, 0x2485), DEVICE_INTEL },	/* ICH3 */
413 	{ PCI_VDEVICE(INTEL, 0x24c5), DEVICE_INTEL_ICH4 }, /* ICH4 */
414 	{ PCI_VDEVICE(INTEL, 0x24d5), DEVICE_INTEL_ICH4 }, /* ICH5 */
415 	{ PCI_VDEVICE(INTEL, 0x25a6), DEVICE_INTEL_ICH4 }, /* ESB */
416 	{ PCI_VDEVICE(INTEL, 0x266e), DEVICE_INTEL_ICH4 }, /* ICH6 */
417 	{ PCI_VDEVICE(INTEL, 0x27de), DEVICE_INTEL_ICH4 }, /* ICH7 */
418 	{ PCI_VDEVICE(INTEL, 0x2698), DEVICE_INTEL_ICH4 }, /* ESB2 */
419 	{ PCI_VDEVICE(INTEL, 0x7195), DEVICE_INTEL },	/* 440MX */
420 	{ PCI_VDEVICE(SI, 0x7012), DEVICE_SIS },	/* SI7012 */
421 	{ PCI_VDEVICE(NVIDIA, 0x01b1), DEVICE_NFORCE },	/* NFORCE */
422 	{ PCI_VDEVICE(NVIDIA, 0x003a), DEVICE_NFORCE },	/* MCP04 */
423 	{ PCI_VDEVICE(NVIDIA, 0x006a), DEVICE_NFORCE },	/* NFORCE2 */
424 	{ PCI_VDEVICE(NVIDIA, 0x0059), DEVICE_NFORCE },	/* CK804 */
425 	{ PCI_VDEVICE(NVIDIA, 0x008a), DEVICE_NFORCE },	/* CK8 */
426 	{ PCI_VDEVICE(NVIDIA, 0x00da), DEVICE_NFORCE },	/* NFORCE3 */
427 	{ PCI_VDEVICE(NVIDIA, 0x00ea), DEVICE_NFORCE },	/* CK8S */
428 	{ PCI_VDEVICE(NVIDIA, 0x026b), DEVICE_NFORCE },	/* MCP51 */
429 	{ PCI_VDEVICE(AMD, 0x746d), DEVICE_INTEL },	/* AMD8111 */
430 	{ PCI_VDEVICE(AMD, 0x7445), DEVICE_INTEL },	/* AMD768 */
431 	{ PCI_VDEVICE(AL, 0x5455), DEVICE_ALI },   /* Ali5455 */
432 	{ 0, }
433 };
434 
435 MODULE_DEVICE_TABLE(pci, snd_intel8x0_ids);
436 
437 /*
438  *  Lowlevel I/O - busmaster
439  */
440 
441 static inline u8 igetbyte(struct intel8x0 *chip, u32 offset)
442 {
443 	return ioread8(chip->bmaddr + offset);
444 }
445 
446 static inline u16 igetword(struct intel8x0 *chip, u32 offset)
447 {
448 	return ioread16(chip->bmaddr + offset);
449 }
450 
451 static inline u32 igetdword(struct intel8x0 *chip, u32 offset)
452 {
453 	return ioread32(chip->bmaddr + offset);
454 }
455 
456 static inline void iputbyte(struct intel8x0 *chip, u32 offset, u8 val)
457 {
458 	iowrite8(val, chip->bmaddr + offset);
459 }
460 
461 static inline void iputword(struct intel8x0 *chip, u32 offset, u16 val)
462 {
463 	iowrite16(val, chip->bmaddr + offset);
464 }
465 
466 static inline void iputdword(struct intel8x0 *chip, u32 offset, u32 val)
467 {
468 	iowrite32(val, chip->bmaddr + offset);
469 }
470 
471 /*
472  *  Lowlevel I/O - AC'97 registers
473  */
474 
475 static inline u16 iagetword(struct intel8x0 *chip, u32 offset)
476 {
477 	return ioread16(chip->addr + offset);
478 }
479 
480 static inline void iaputword(struct intel8x0 *chip, u32 offset, u16 val)
481 {
482 	iowrite16(val, chip->addr + offset);
483 }
484 
485 /*
486  *  Basic I/O
487  */
488 
489 /*
490  * access to AC97 codec via normal i/o (for ICH and SIS7012)
491  */
492 
493 static int snd_intel8x0_codec_semaphore(struct intel8x0 *chip, unsigned int codec)
494 {
495 	int time;
496 
497 	if (codec > 2)
498 		return -EIO;
499 	if (chip->in_sdin_init) {
500 		/* we don't know the ready bit assignment at the moment */
501 		/* so we check any */
502 		codec = chip->codec_isr_bits;
503 	} else {
504 		codec = chip->codec_bit[chip->ac97_sdin[codec]];
505 	}
506 
507 	/* codec ready ? */
508 	if ((igetdword(chip, ICHREG(GLOB_STA)) & codec) == 0)
509 		return -EIO;
510 
511 	if (chip->buggy_semaphore)
512 		return 0; /* just ignore ... */
513 
514 	/* Anyone holding a semaphore for 1 msec should be shot... */
515 	time = 100;
516       	do {
517       		if (!(igetbyte(chip, ICHREG(ACC_SEMA)) & ICH_CAS))
518       			return 0;
519 		udelay(10);
520 	} while (time--);
521 
522 	/* access to some forbidden (non existent) ac97 registers will not
523 	 * reset the semaphore. So even if you don't get the semaphore, still
524 	 * continue the access. We don't need the semaphore anyway. */
525 	dev_err(chip->card->dev,
526 		"codec_semaphore: semaphore is not ready [0x%x][0x%x]\n",
527 			igetbyte(chip, ICHREG(ACC_SEMA)), igetdword(chip, ICHREG(GLOB_STA)));
528 	iagetword(chip, 0);	/* clear semaphore flag */
529 	/* I don't care about the semaphore */
530 	return -EBUSY;
531 }
532 
533 static void snd_intel8x0_codec_write(struct snd_ac97 *ac97,
534 				     unsigned short reg,
535 				     unsigned short val)
536 {
537 	struct intel8x0 *chip = ac97->private_data;
538 
539 	if (snd_intel8x0_codec_semaphore(chip, ac97->num) < 0) {
540 		if (! chip->in_ac97_init)
541 			dev_err(chip->card->dev,
542 				"codec_write %d: semaphore is not ready for register 0x%x\n",
543 				ac97->num, reg);
544 	}
545 	iaputword(chip, reg + ac97->num * 0x80, val);
546 }
547 
548 static unsigned short snd_intel8x0_codec_read(struct snd_ac97 *ac97,
549 					      unsigned short reg)
550 {
551 	struct intel8x0 *chip = ac97->private_data;
552 	unsigned short res;
553 	unsigned int tmp;
554 
555 	if (snd_intel8x0_codec_semaphore(chip, ac97->num) < 0) {
556 		if (! chip->in_ac97_init)
557 			dev_err(chip->card->dev,
558 				"codec_read %d: semaphore is not ready for register 0x%x\n",
559 				ac97->num, reg);
560 		res = 0xffff;
561 	} else {
562 		res = iagetword(chip, reg + ac97->num * 0x80);
563 		if ((tmp = igetdword(chip, ICHREG(GLOB_STA))) & ICH_RCS) {
564 			/* reset RCS and preserve other R/WC bits */
565 			iputdword(chip, ICHREG(GLOB_STA), tmp &
566 				  ~(chip->codec_ready_bits | ICH_GSCI));
567 			if (! chip->in_ac97_init)
568 				dev_err(chip->card->dev,
569 					"codec_read %d: read timeout for register 0x%x\n",
570 					ac97->num, reg);
571 			res = 0xffff;
572 		}
573 	}
574 	return res;
575 }
576 
577 static void snd_intel8x0_codec_read_test(struct intel8x0 *chip,
578 					 unsigned int codec)
579 {
580 	unsigned int tmp;
581 
582 	if (snd_intel8x0_codec_semaphore(chip, codec) >= 0) {
583 		iagetword(chip, codec * 0x80);
584 		if ((tmp = igetdword(chip, ICHREG(GLOB_STA))) & ICH_RCS) {
585 			/* reset RCS and preserve other R/WC bits */
586 			iputdword(chip, ICHREG(GLOB_STA), tmp &
587 				  ~(chip->codec_ready_bits | ICH_GSCI));
588 		}
589 	}
590 }
591 
592 /*
593  * access to AC97 for Ali5455
594  */
595 static int snd_intel8x0_ali_codec_ready(struct intel8x0 *chip, int mask)
596 {
597 	int count = 0;
598 	for (count = 0; count < 0x7f; count++) {
599 		int val = igetbyte(chip, ICHREG(ALI_CSPSR));
600 		if (val & mask)
601 			return 0;
602 	}
603 	if (! chip->in_ac97_init)
604 		dev_warn(chip->card->dev, "AC97 codec ready timeout.\n");
605 	return -EBUSY;
606 }
607 
608 static int snd_intel8x0_ali_codec_semaphore(struct intel8x0 *chip)
609 {
610 	int time = 100;
611 	if (chip->buggy_semaphore)
612 		return 0; /* just ignore ... */
613 	while (--time && (igetdword(chip, ICHREG(ALI_CAS)) & ALI_CAS_SEM_BUSY))
614 		udelay(1);
615 	if (! time && ! chip->in_ac97_init)
616 		dev_warn(chip->card->dev, "ali_codec_semaphore timeout\n");
617 	return snd_intel8x0_ali_codec_ready(chip, ALI_CSPSR_CODEC_READY);
618 }
619 
620 static unsigned short snd_intel8x0_ali_codec_read(struct snd_ac97 *ac97, unsigned short reg)
621 {
622 	struct intel8x0 *chip = ac97->private_data;
623 	unsigned short data = 0xffff;
624 
625 	if (snd_intel8x0_ali_codec_semaphore(chip))
626 		goto __err;
627 	reg |= ALI_CPR_ADDR_READ;
628 	if (ac97->num)
629 		reg |= ALI_CPR_ADDR_SECONDARY;
630 	iputword(chip, ICHREG(ALI_CPR_ADDR), reg);
631 	if (snd_intel8x0_ali_codec_ready(chip, ALI_CSPSR_READ_OK))
632 		goto __err;
633 	data = igetword(chip, ICHREG(ALI_SPR));
634  __err:
635 	return data;
636 }
637 
638 static void snd_intel8x0_ali_codec_write(struct snd_ac97 *ac97, unsigned short reg,
639 					 unsigned short val)
640 {
641 	struct intel8x0 *chip = ac97->private_data;
642 
643 	if (snd_intel8x0_ali_codec_semaphore(chip))
644 		return;
645 	iputword(chip, ICHREG(ALI_CPR), val);
646 	if (ac97->num)
647 		reg |= ALI_CPR_ADDR_SECONDARY;
648 	iputword(chip, ICHREG(ALI_CPR_ADDR), reg);
649 	snd_intel8x0_ali_codec_ready(chip, ALI_CSPSR_WRITE_OK);
650 }
651 
652 
653 /*
654  * DMA I/O
655  */
656 static void snd_intel8x0_setup_periods(struct intel8x0 *chip, struct ichdev *ichdev)
657 {
658 	int idx;
659 	__le32 *bdbar = ichdev->bdbar;
660 	unsigned long port = ichdev->reg_offset;
661 
662 	iputdword(chip, port + ICH_REG_OFF_BDBAR, ichdev->bdbar_addr);
663 	if (ichdev->size == ichdev->fragsize) {
664 		ichdev->ack_reload = ichdev->ack = 2;
665 		ichdev->fragsize1 = ichdev->fragsize >> 1;
666 		for (idx = 0; idx < (ICH_REG_LVI_MASK + 1) * 2; idx += 4) {
667 			bdbar[idx + 0] = cpu_to_le32(ichdev->physbuf);
668 			bdbar[idx + 1] = cpu_to_le32(0x80000000 | /* interrupt on completion */
669 						     ichdev->fragsize1 >> ichdev->pos_shift);
670 			bdbar[idx + 2] = cpu_to_le32(ichdev->physbuf + (ichdev->size >> 1));
671 			bdbar[idx + 3] = cpu_to_le32(0x80000000 | /* interrupt on completion */
672 						     ichdev->fragsize1 >> ichdev->pos_shift);
673 		}
674 		ichdev->frags = 2;
675 	} else {
676 		ichdev->ack_reload = ichdev->ack = 1;
677 		ichdev->fragsize1 = ichdev->fragsize;
678 		for (idx = 0; idx < (ICH_REG_LVI_MASK + 1) * 2; idx += 2) {
679 			bdbar[idx + 0] = cpu_to_le32(ichdev->physbuf +
680 						     (((idx >> 1) * ichdev->fragsize) %
681 						      ichdev->size));
682 			bdbar[idx + 1] = cpu_to_le32(0x80000000 | /* interrupt on completion */
683 						     ichdev->fragsize >> ichdev->pos_shift);
684 #if 0
685 			dev_dbg(chip->card->dev, "bdbar[%i] = 0x%x [0x%x]\n",
686 			       idx + 0, bdbar[idx + 0], bdbar[idx + 1]);
687 #endif
688 		}
689 		ichdev->frags = ichdev->size / ichdev->fragsize;
690 	}
691 	iputbyte(chip, port + ICH_REG_OFF_LVI, ichdev->lvi = ICH_REG_LVI_MASK);
692 	ichdev->civ = 0;
693 	iputbyte(chip, port + ICH_REG_OFF_CIV, 0);
694 	ichdev->lvi_frag = ICH_REG_LVI_MASK % ichdev->frags;
695 	ichdev->position = 0;
696 #if 0
697 	dev_dbg(chip->card->dev,
698 		"lvi_frag = %i, frags = %i, period_size = 0x%x, period_size1 = 0x%x\n",
699 	       ichdev->lvi_frag, ichdev->frags, ichdev->fragsize,
700 	       ichdev->fragsize1);
701 #endif
702 	/* clear interrupts */
703 	iputbyte(chip, port + ichdev->roff_sr, ICH_FIFOE | ICH_BCIS | ICH_LVBCI);
704 }
705 
706 /*
707  *  Interrupt handler
708  */
709 
710 static inline void snd_intel8x0_update(struct intel8x0 *chip, struct ichdev *ichdev)
711 {
712 	unsigned long port = ichdev->reg_offset;
713 	unsigned long flags;
714 	int status, civ, i, step;
715 	int ack = 0;
716 
717 	spin_lock_irqsave(&chip->reg_lock, flags);
718 	status = igetbyte(chip, port + ichdev->roff_sr);
719 	civ = igetbyte(chip, port + ICH_REG_OFF_CIV);
720 	if (!(status & ICH_BCIS)) {
721 		step = 0;
722 	} else if (civ == ichdev->civ) {
723 		// snd_printd("civ same %d\n", civ);
724 		step = 1;
725 		ichdev->civ++;
726 		ichdev->civ &= ICH_REG_LVI_MASK;
727 	} else {
728 		step = civ - ichdev->civ;
729 		if (step < 0)
730 			step += ICH_REG_LVI_MASK + 1;
731 		// if (step != 1)
732 		//	snd_printd("step = %d, %d -> %d\n", step, ichdev->civ, civ);
733 		ichdev->civ = civ;
734 	}
735 
736 	ichdev->position += step * ichdev->fragsize1;
737 	if (! chip->in_measurement)
738 		ichdev->position %= ichdev->size;
739 	ichdev->lvi += step;
740 	ichdev->lvi &= ICH_REG_LVI_MASK;
741 	iputbyte(chip, port + ICH_REG_OFF_LVI, ichdev->lvi);
742 	for (i = 0; i < step; i++) {
743 		ichdev->lvi_frag++;
744 		ichdev->lvi_frag %= ichdev->frags;
745 		ichdev->bdbar[ichdev->lvi * 2] = cpu_to_le32(ichdev->physbuf + ichdev->lvi_frag * ichdev->fragsize1);
746 #if 0
747 	dev_dbg(chip->card->dev,
748 		"new: bdbar[%i] = 0x%x [0x%x], prefetch = %i, all = 0x%x, 0x%x\n",
749 	       ichdev->lvi * 2, ichdev->bdbar[ichdev->lvi * 2],
750 	       ichdev->bdbar[ichdev->lvi * 2 + 1], inb(ICH_REG_OFF_PIV + port),
751 	       inl(port + 4), inb(port + ICH_REG_OFF_CR));
752 #endif
753 		if (--ichdev->ack == 0) {
754 			ichdev->ack = ichdev->ack_reload;
755 			ack = 1;
756 		}
757 	}
758 	spin_unlock_irqrestore(&chip->reg_lock, flags);
759 	if (ack && ichdev->substream) {
760 		snd_pcm_period_elapsed(ichdev->substream);
761 	}
762 	iputbyte(chip, port + ichdev->roff_sr,
763 		 status & (ICH_FIFOE | ICH_BCIS | ICH_LVBCI));
764 }
765 
766 static irqreturn_t snd_intel8x0_interrupt(int irq, void *dev_id)
767 {
768 	struct intel8x0 *chip = dev_id;
769 	struct ichdev *ichdev;
770 	unsigned int status;
771 	unsigned int i;
772 
773 	status = igetdword(chip, chip->int_sta_reg);
774 	if (status == 0xffffffff)	/* we are not yet resumed */
775 		return IRQ_NONE;
776 
777 	if ((status & chip->int_sta_mask) == 0) {
778 		if (status) {
779 			/* ack */
780 			iputdword(chip, chip->int_sta_reg, status);
781 			if (! chip->buggy_irq)
782 				status = 0;
783 		}
784 		return IRQ_RETVAL(status);
785 	}
786 
787 	for (i = 0; i < chip->bdbars_count; i++) {
788 		ichdev = &chip->ichd[i];
789 		if (status & ichdev->int_sta_mask)
790 			snd_intel8x0_update(chip, ichdev);
791 	}
792 
793 	/* ack them */
794 	iputdword(chip, chip->int_sta_reg, status & chip->int_sta_mask);
795 
796 	return IRQ_HANDLED;
797 }
798 
799 /*
800  *  PCM part
801  */
802 
803 static int snd_intel8x0_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
804 {
805 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
806 	struct ichdev *ichdev = get_ichdev(substream);
807 	unsigned char val = 0;
808 	unsigned long port = ichdev->reg_offset;
809 
810 	switch (cmd) {
811 	case SNDRV_PCM_TRIGGER_RESUME:
812 		ichdev->suspended = 0;
813 		/* fall through */
814 	case SNDRV_PCM_TRIGGER_START:
815 	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
816 		val = ICH_IOCE | ICH_STARTBM;
817 		ichdev->last_pos = ichdev->position;
818 		break;
819 	case SNDRV_PCM_TRIGGER_SUSPEND:
820 		ichdev->suspended = 1;
821 		/* fall through */
822 	case SNDRV_PCM_TRIGGER_STOP:
823 		val = 0;
824 		break;
825 	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
826 		val = ICH_IOCE;
827 		break;
828 	default:
829 		return -EINVAL;
830 	}
831 	iputbyte(chip, port + ICH_REG_OFF_CR, val);
832 	if (cmd == SNDRV_PCM_TRIGGER_STOP) {
833 		/* wait until DMA stopped */
834 		while (!(igetbyte(chip, port + ichdev->roff_sr) & ICH_DCH)) ;
835 		/* reset whole DMA things */
836 		iputbyte(chip, port + ICH_REG_OFF_CR, ICH_RESETREGS);
837 	}
838 	return 0;
839 }
840 
841 static int snd_intel8x0_ali_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 long port = ichdev->reg_offset;
846 	static int fiforeg[] = {
847 		ICHREG(ALI_FIFOCR1), ICHREG(ALI_FIFOCR2), ICHREG(ALI_FIFOCR3)
848 	};
849 	unsigned int val, fifo;
850 
851 	val = igetdword(chip, ICHREG(ALI_DMACR));
852 	switch (cmd) {
853 	case SNDRV_PCM_TRIGGER_RESUME:
854 		ichdev->suspended = 0;
855 		/* fall through */
856 	case SNDRV_PCM_TRIGGER_START:
857 	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
858 		if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
859 			/* clear FIFO for synchronization of channels */
860 			fifo = igetdword(chip, fiforeg[ichdev->ali_slot / 4]);
861 			fifo &= ~(0xff << (ichdev->ali_slot % 4));
862 			fifo |= 0x83 << (ichdev->ali_slot % 4);
863 			iputdword(chip, fiforeg[ichdev->ali_slot / 4], fifo);
864 		}
865 		iputbyte(chip, port + ICH_REG_OFF_CR, ICH_IOCE);
866 		val &= ~(1 << (ichdev->ali_slot + 16)); /* clear PAUSE flag */
867 		/* start DMA */
868 		iputdword(chip, ICHREG(ALI_DMACR), val | (1 << ichdev->ali_slot));
869 		break;
870 	case SNDRV_PCM_TRIGGER_SUSPEND:
871 		ichdev->suspended = 1;
872 		/* fall through */
873 	case SNDRV_PCM_TRIGGER_STOP:
874 	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
875 		/* pause */
876 		iputdword(chip, ICHREG(ALI_DMACR), val | (1 << (ichdev->ali_slot + 16)));
877 		iputbyte(chip, port + ICH_REG_OFF_CR, 0);
878 		while (igetbyte(chip, port + ICH_REG_OFF_CR))
879 			;
880 		if (cmd == SNDRV_PCM_TRIGGER_PAUSE_PUSH)
881 			break;
882 		/* reset whole DMA things */
883 		iputbyte(chip, port + ICH_REG_OFF_CR, ICH_RESETREGS);
884 		/* clear interrupts */
885 		iputbyte(chip, port + ICH_REG_OFF_SR,
886 			 igetbyte(chip, port + ICH_REG_OFF_SR) | 0x1e);
887 		iputdword(chip, ICHREG(ALI_INTERRUPTSR),
888 			  igetdword(chip, ICHREG(ALI_INTERRUPTSR)) & ichdev->int_sta_mask);
889 		break;
890 	default:
891 		return -EINVAL;
892 	}
893 	return 0;
894 }
895 
896 static int snd_intel8x0_hw_params(struct snd_pcm_substream *substream,
897 				  struct snd_pcm_hw_params *hw_params)
898 {
899 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
900 	struct ichdev *ichdev = get_ichdev(substream);
901 	int dbl = params_rate(hw_params) > 48000;
902 	int err;
903 
904 	err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
905 	if (err < 0)
906 		return err;
907 	if (ichdev->pcm_open_flag) {
908 		snd_ac97_pcm_close(ichdev->pcm);
909 		ichdev->pcm_open_flag = 0;
910 	}
911 	err = snd_ac97_pcm_open(ichdev->pcm, params_rate(hw_params),
912 				params_channels(hw_params),
913 				ichdev->pcm->r[dbl].slots);
914 	if (err >= 0) {
915 		ichdev->pcm_open_flag = 1;
916 		/* Force SPDIF setting */
917 		if (ichdev->ichd == ICHD_PCMOUT && chip->spdif_idx < 0)
918 			snd_ac97_set_rate(ichdev->pcm->r[0].codec[0], AC97_SPDIF,
919 					  params_rate(hw_params));
920 	}
921 	return err;
922 }
923 
924 static int snd_intel8x0_hw_free(struct snd_pcm_substream *substream)
925 {
926 	struct ichdev *ichdev = get_ichdev(substream);
927 
928 	if (ichdev->pcm_open_flag) {
929 		snd_ac97_pcm_close(ichdev->pcm);
930 		ichdev->pcm_open_flag = 0;
931 	}
932 	return snd_pcm_lib_free_pages(substream);
933 }
934 
935 static void snd_intel8x0_setup_pcm_out(struct intel8x0 *chip,
936 				       struct snd_pcm_runtime *runtime)
937 {
938 	unsigned int cnt;
939 	int dbl = runtime->rate > 48000;
940 
941 	spin_lock_irq(&chip->reg_lock);
942 	switch (chip->device_type) {
943 	case DEVICE_ALI:
944 		cnt = igetdword(chip, ICHREG(ALI_SCR));
945 		cnt &= ~ICH_ALI_SC_PCM_246_MASK;
946 		if (runtime->channels == 4 || dbl)
947 			cnt |= ICH_ALI_SC_PCM_4;
948 		else if (runtime->channels == 6)
949 			cnt |= ICH_ALI_SC_PCM_6;
950 		iputdword(chip, ICHREG(ALI_SCR), cnt);
951 		break;
952 	case DEVICE_SIS:
953 		cnt = igetdword(chip, ICHREG(GLOB_CNT));
954 		cnt &= ~ICH_SIS_PCM_246_MASK;
955 		if (runtime->channels == 4 || dbl)
956 			cnt |= ICH_SIS_PCM_4;
957 		else if (runtime->channels == 6)
958 			cnt |= ICH_SIS_PCM_6;
959 		iputdword(chip, ICHREG(GLOB_CNT), cnt);
960 		break;
961 	default:
962 		cnt = igetdword(chip, ICHREG(GLOB_CNT));
963 		cnt &= ~(ICH_PCM_246_MASK | ICH_PCM_20BIT);
964 		if (runtime->channels == 4 || dbl)
965 			cnt |= ICH_PCM_4;
966 		else if (runtime->channels == 6)
967 			cnt |= ICH_PCM_6;
968 		else if (runtime->channels == 8)
969 			cnt |= ICH_PCM_8;
970 		if (chip->device_type == DEVICE_NFORCE) {
971 			/* reset to 2ch once to keep the 6 channel data in alignment,
972 			 * to start from Front Left always
973 			 */
974 			if (cnt & ICH_PCM_246_MASK) {
975 				iputdword(chip, ICHREG(GLOB_CNT), cnt & ~ICH_PCM_246_MASK);
976 				spin_unlock_irq(&chip->reg_lock);
977 				msleep(50); /* grrr... */
978 				spin_lock_irq(&chip->reg_lock);
979 			}
980 		} else if (chip->device_type == DEVICE_INTEL_ICH4) {
981 			if (runtime->sample_bits > 16)
982 				cnt |= ICH_PCM_20BIT;
983 		}
984 		iputdword(chip, ICHREG(GLOB_CNT), cnt);
985 		break;
986 	}
987 	spin_unlock_irq(&chip->reg_lock);
988 }
989 
990 static int snd_intel8x0_pcm_prepare(struct snd_pcm_substream *substream)
991 {
992 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
993 	struct snd_pcm_runtime *runtime = substream->runtime;
994 	struct ichdev *ichdev = get_ichdev(substream);
995 
996 	ichdev->physbuf = runtime->dma_addr;
997 	ichdev->size = snd_pcm_lib_buffer_bytes(substream);
998 	ichdev->fragsize = snd_pcm_lib_period_bytes(substream);
999 	if (ichdev->ichd == ICHD_PCMOUT) {
1000 		snd_intel8x0_setup_pcm_out(chip, runtime);
1001 		if (chip->device_type == DEVICE_INTEL_ICH4)
1002 			ichdev->pos_shift = (runtime->sample_bits > 16) ? 2 : 1;
1003 	}
1004 	snd_intel8x0_setup_periods(chip, ichdev);
1005 	return 0;
1006 }
1007 
1008 static snd_pcm_uframes_t snd_intel8x0_pcm_pointer(struct snd_pcm_substream *substream)
1009 {
1010 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1011 	struct ichdev *ichdev = get_ichdev(substream);
1012 	size_t ptr1, ptr;
1013 	int civ, timeout = 10;
1014 	unsigned int position;
1015 
1016 	spin_lock(&chip->reg_lock);
1017 	do {
1018 		civ = igetbyte(chip, ichdev->reg_offset + ICH_REG_OFF_CIV);
1019 		ptr1 = igetword(chip, ichdev->reg_offset + ichdev->roff_picb);
1020 		position = ichdev->position;
1021 		if (ptr1 == 0) {
1022 			udelay(10);
1023 			continue;
1024 		}
1025 		if (civ != igetbyte(chip, ichdev->reg_offset + ICH_REG_OFF_CIV))
1026 			continue;
1027 
1028 		/* IO read operation is very expensive inside virtual machine
1029 		 * as it is emulated. The probability that subsequent PICB read
1030 		 * will return different result is high enough to loop till
1031 		 * timeout here.
1032 		 * Same CIV is strict enough condition to be sure that PICB
1033 		 * is valid inside VM on emulated card. */
1034 		if (chip->inside_vm)
1035 			break;
1036 		if (ptr1 == igetword(chip, ichdev->reg_offset + ichdev->roff_picb))
1037 			break;
1038 	} while (timeout--);
1039 	ptr = ichdev->last_pos;
1040 	if (ptr1 != 0) {
1041 		ptr1 <<= ichdev->pos_shift;
1042 		ptr = ichdev->fragsize1 - ptr1;
1043 		ptr += position;
1044 		if (ptr < ichdev->last_pos) {
1045 			unsigned int pos_base, last_base;
1046 			pos_base = position / ichdev->fragsize1;
1047 			last_base = ichdev->last_pos / ichdev->fragsize1;
1048 			/* another sanity check; ptr1 can go back to full
1049 			 * before the base position is updated
1050 			 */
1051 			if (pos_base == last_base)
1052 				ptr = ichdev->last_pos;
1053 		}
1054 	}
1055 	ichdev->last_pos = ptr;
1056 	spin_unlock(&chip->reg_lock);
1057 	if (ptr >= ichdev->size)
1058 		return 0;
1059 	return bytes_to_frames(substream->runtime, ptr);
1060 }
1061 
1062 static const struct snd_pcm_hardware snd_intel8x0_stream =
1063 {
1064 	.info =			(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1065 				 SNDRV_PCM_INFO_BLOCK_TRANSFER |
1066 				 SNDRV_PCM_INFO_MMAP_VALID |
1067 				 SNDRV_PCM_INFO_PAUSE |
1068 				 SNDRV_PCM_INFO_RESUME),
1069 	.formats =		SNDRV_PCM_FMTBIT_S16_LE,
1070 	.rates =		SNDRV_PCM_RATE_48000,
1071 	.rate_min =		48000,
1072 	.rate_max =		48000,
1073 	.channels_min =		2,
1074 	.channels_max =		2,
1075 	.buffer_bytes_max =	128 * 1024,
1076 	.period_bytes_min =	32,
1077 	.period_bytes_max =	128 * 1024,
1078 	.periods_min =		1,
1079 	.periods_max =		1024,
1080 	.fifo_size =		0,
1081 };
1082 
1083 static const unsigned int channels4[] = {
1084 	2, 4,
1085 };
1086 
1087 static const struct snd_pcm_hw_constraint_list hw_constraints_channels4 = {
1088 	.count = ARRAY_SIZE(channels4),
1089 	.list = channels4,
1090 	.mask = 0,
1091 };
1092 
1093 static const unsigned int channels6[] = {
1094 	2, 4, 6,
1095 };
1096 
1097 static const struct snd_pcm_hw_constraint_list hw_constraints_channels6 = {
1098 	.count = ARRAY_SIZE(channels6),
1099 	.list = channels6,
1100 	.mask = 0,
1101 };
1102 
1103 static const unsigned int channels8[] = {
1104 	2, 4, 6, 8,
1105 };
1106 
1107 static const struct snd_pcm_hw_constraint_list hw_constraints_channels8 = {
1108 	.count = ARRAY_SIZE(channels8),
1109 	.list = channels8,
1110 	.mask = 0,
1111 };
1112 
1113 static int snd_intel8x0_pcm_open(struct snd_pcm_substream *substream, struct ichdev *ichdev)
1114 {
1115 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1116 	struct snd_pcm_runtime *runtime = substream->runtime;
1117 	int err;
1118 
1119 	ichdev->substream = substream;
1120 	runtime->hw = snd_intel8x0_stream;
1121 	runtime->hw.rates = ichdev->pcm->rates;
1122 	snd_pcm_limit_hw_rates(runtime);
1123 	if (chip->device_type == DEVICE_SIS) {
1124 		runtime->hw.buffer_bytes_max = 64*1024;
1125 		runtime->hw.period_bytes_max = 64*1024;
1126 	}
1127 	if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
1128 		return err;
1129 	runtime->private_data = ichdev;
1130 	return 0;
1131 }
1132 
1133 static int snd_intel8x0_playback_open(struct snd_pcm_substream *substream)
1134 {
1135 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1136 	struct snd_pcm_runtime *runtime = substream->runtime;
1137 	int err;
1138 
1139 	err = snd_intel8x0_pcm_open(substream, &chip->ichd[ICHD_PCMOUT]);
1140 	if (err < 0)
1141 		return err;
1142 
1143 	if (chip->multi8) {
1144 		runtime->hw.channels_max = 8;
1145 		snd_pcm_hw_constraint_list(runtime, 0,
1146 						SNDRV_PCM_HW_PARAM_CHANNELS,
1147 						&hw_constraints_channels8);
1148 	} else if (chip->multi6) {
1149 		runtime->hw.channels_max = 6;
1150 		snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
1151 					   &hw_constraints_channels6);
1152 	} else if (chip->multi4) {
1153 		runtime->hw.channels_max = 4;
1154 		snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
1155 					   &hw_constraints_channels4);
1156 	}
1157 	if (chip->dra) {
1158 		snd_ac97_pcm_double_rate_rules(runtime);
1159 	}
1160 	if (chip->smp20bit) {
1161 		runtime->hw.formats |= SNDRV_PCM_FMTBIT_S32_LE;
1162 		snd_pcm_hw_constraint_msbits(runtime, 0, 32, 20);
1163 	}
1164 	return 0;
1165 }
1166 
1167 static int snd_intel8x0_playback_close(struct snd_pcm_substream *substream)
1168 {
1169 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1170 
1171 	chip->ichd[ICHD_PCMOUT].substream = NULL;
1172 	return 0;
1173 }
1174 
1175 static int snd_intel8x0_capture_open(struct snd_pcm_substream *substream)
1176 {
1177 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1178 
1179 	return snd_intel8x0_pcm_open(substream, &chip->ichd[ICHD_PCMIN]);
1180 }
1181 
1182 static int snd_intel8x0_capture_close(struct snd_pcm_substream *substream)
1183 {
1184 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1185 
1186 	chip->ichd[ICHD_PCMIN].substream = NULL;
1187 	return 0;
1188 }
1189 
1190 static int snd_intel8x0_mic_open(struct snd_pcm_substream *substream)
1191 {
1192 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1193 
1194 	return snd_intel8x0_pcm_open(substream, &chip->ichd[ICHD_MIC]);
1195 }
1196 
1197 static int snd_intel8x0_mic_close(struct snd_pcm_substream *substream)
1198 {
1199 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1200 
1201 	chip->ichd[ICHD_MIC].substream = NULL;
1202 	return 0;
1203 }
1204 
1205 static int snd_intel8x0_mic2_open(struct snd_pcm_substream *substream)
1206 {
1207 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1208 
1209 	return snd_intel8x0_pcm_open(substream, &chip->ichd[ICHD_MIC2]);
1210 }
1211 
1212 static int snd_intel8x0_mic2_close(struct snd_pcm_substream *substream)
1213 {
1214 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1215 
1216 	chip->ichd[ICHD_MIC2].substream = NULL;
1217 	return 0;
1218 }
1219 
1220 static int snd_intel8x0_capture2_open(struct snd_pcm_substream *substream)
1221 {
1222 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1223 
1224 	return snd_intel8x0_pcm_open(substream, &chip->ichd[ICHD_PCM2IN]);
1225 }
1226 
1227 static int snd_intel8x0_capture2_close(struct snd_pcm_substream *substream)
1228 {
1229 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1230 
1231 	chip->ichd[ICHD_PCM2IN].substream = NULL;
1232 	return 0;
1233 }
1234 
1235 static int snd_intel8x0_spdif_open(struct snd_pcm_substream *substream)
1236 {
1237 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1238 	int idx = chip->device_type == DEVICE_NFORCE ? NVD_SPBAR : ICHD_SPBAR;
1239 
1240 	return snd_intel8x0_pcm_open(substream, &chip->ichd[idx]);
1241 }
1242 
1243 static int snd_intel8x0_spdif_close(struct snd_pcm_substream *substream)
1244 {
1245 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1246 	int idx = chip->device_type == DEVICE_NFORCE ? NVD_SPBAR : ICHD_SPBAR;
1247 
1248 	chip->ichd[idx].substream = NULL;
1249 	return 0;
1250 }
1251 
1252 static int snd_intel8x0_ali_ac97spdifout_open(struct snd_pcm_substream *substream)
1253 {
1254 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1255 	unsigned int val;
1256 
1257 	spin_lock_irq(&chip->reg_lock);
1258 	val = igetdword(chip, ICHREG(ALI_INTERFACECR));
1259 	val |= ICH_ALI_IF_AC97SP;
1260 	iputdword(chip, ICHREG(ALI_INTERFACECR), val);
1261 	/* also needs to set ALI_SC_CODEC_SPDF correctly */
1262 	spin_unlock_irq(&chip->reg_lock);
1263 
1264 	return snd_intel8x0_pcm_open(substream, &chip->ichd[ALID_AC97SPDIFOUT]);
1265 }
1266 
1267 static int snd_intel8x0_ali_ac97spdifout_close(struct snd_pcm_substream *substream)
1268 {
1269 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1270 	unsigned int val;
1271 
1272 	chip->ichd[ALID_AC97SPDIFOUT].substream = NULL;
1273 	spin_lock_irq(&chip->reg_lock);
1274 	val = igetdword(chip, ICHREG(ALI_INTERFACECR));
1275 	val &= ~ICH_ALI_IF_AC97SP;
1276 	iputdword(chip, ICHREG(ALI_INTERFACECR), val);
1277 	spin_unlock_irq(&chip->reg_lock);
1278 
1279 	return 0;
1280 }
1281 
1282 #if 0 // NYI
1283 static int snd_intel8x0_ali_spdifin_open(struct snd_pcm_substream *substream)
1284 {
1285 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1286 
1287 	return snd_intel8x0_pcm_open(substream, &chip->ichd[ALID_SPDIFIN]);
1288 }
1289 
1290 static int snd_intel8x0_ali_spdifin_close(struct snd_pcm_substream *substream)
1291 {
1292 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1293 
1294 	chip->ichd[ALID_SPDIFIN].substream = NULL;
1295 	return 0;
1296 }
1297 
1298 static int snd_intel8x0_ali_spdifout_open(struct snd_pcm_substream *substream)
1299 {
1300 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1301 
1302 	return snd_intel8x0_pcm_open(substream, &chip->ichd[ALID_SPDIFOUT]);
1303 }
1304 
1305 static int snd_intel8x0_ali_spdifout_close(struct snd_pcm_substream *substream)
1306 {
1307 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1308 
1309 	chip->ichd[ALID_SPDIFOUT].substream = NULL;
1310 	return 0;
1311 }
1312 #endif
1313 
1314 static const struct snd_pcm_ops snd_intel8x0_playback_ops = {
1315 	.open =		snd_intel8x0_playback_open,
1316 	.close =	snd_intel8x0_playback_close,
1317 	.ioctl =	snd_pcm_lib_ioctl,
1318 	.hw_params =	snd_intel8x0_hw_params,
1319 	.hw_free =	snd_intel8x0_hw_free,
1320 	.prepare =	snd_intel8x0_pcm_prepare,
1321 	.trigger =	snd_intel8x0_pcm_trigger,
1322 	.pointer =	snd_intel8x0_pcm_pointer,
1323 };
1324 
1325 static const struct snd_pcm_ops snd_intel8x0_capture_ops = {
1326 	.open =		snd_intel8x0_capture_open,
1327 	.close =	snd_intel8x0_capture_close,
1328 	.ioctl =	snd_pcm_lib_ioctl,
1329 	.hw_params =	snd_intel8x0_hw_params,
1330 	.hw_free =	snd_intel8x0_hw_free,
1331 	.prepare =	snd_intel8x0_pcm_prepare,
1332 	.trigger =	snd_intel8x0_pcm_trigger,
1333 	.pointer =	snd_intel8x0_pcm_pointer,
1334 };
1335 
1336 static const struct snd_pcm_ops snd_intel8x0_capture_mic_ops = {
1337 	.open =		snd_intel8x0_mic_open,
1338 	.close =	snd_intel8x0_mic_close,
1339 	.ioctl =	snd_pcm_lib_ioctl,
1340 	.hw_params =	snd_intel8x0_hw_params,
1341 	.hw_free =	snd_intel8x0_hw_free,
1342 	.prepare =	snd_intel8x0_pcm_prepare,
1343 	.trigger =	snd_intel8x0_pcm_trigger,
1344 	.pointer =	snd_intel8x0_pcm_pointer,
1345 };
1346 
1347 static const struct snd_pcm_ops snd_intel8x0_capture_mic2_ops = {
1348 	.open =		snd_intel8x0_mic2_open,
1349 	.close =	snd_intel8x0_mic2_close,
1350 	.ioctl =	snd_pcm_lib_ioctl,
1351 	.hw_params =	snd_intel8x0_hw_params,
1352 	.hw_free =	snd_intel8x0_hw_free,
1353 	.prepare =	snd_intel8x0_pcm_prepare,
1354 	.trigger =	snd_intel8x0_pcm_trigger,
1355 	.pointer =	snd_intel8x0_pcm_pointer,
1356 };
1357 
1358 static const struct snd_pcm_ops snd_intel8x0_capture2_ops = {
1359 	.open =		snd_intel8x0_capture2_open,
1360 	.close =	snd_intel8x0_capture2_close,
1361 	.ioctl =	snd_pcm_lib_ioctl,
1362 	.hw_params =	snd_intel8x0_hw_params,
1363 	.hw_free =	snd_intel8x0_hw_free,
1364 	.prepare =	snd_intel8x0_pcm_prepare,
1365 	.trigger =	snd_intel8x0_pcm_trigger,
1366 	.pointer =	snd_intel8x0_pcm_pointer,
1367 };
1368 
1369 static const struct snd_pcm_ops snd_intel8x0_spdif_ops = {
1370 	.open =		snd_intel8x0_spdif_open,
1371 	.close =	snd_intel8x0_spdif_close,
1372 	.ioctl =	snd_pcm_lib_ioctl,
1373 	.hw_params =	snd_intel8x0_hw_params,
1374 	.hw_free =	snd_intel8x0_hw_free,
1375 	.prepare =	snd_intel8x0_pcm_prepare,
1376 	.trigger =	snd_intel8x0_pcm_trigger,
1377 	.pointer =	snd_intel8x0_pcm_pointer,
1378 };
1379 
1380 static const struct snd_pcm_ops snd_intel8x0_ali_playback_ops = {
1381 	.open =		snd_intel8x0_playback_open,
1382 	.close =	snd_intel8x0_playback_close,
1383 	.ioctl =	snd_pcm_lib_ioctl,
1384 	.hw_params =	snd_intel8x0_hw_params,
1385 	.hw_free =	snd_intel8x0_hw_free,
1386 	.prepare =	snd_intel8x0_pcm_prepare,
1387 	.trigger =	snd_intel8x0_ali_trigger,
1388 	.pointer =	snd_intel8x0_pcm_pointer,
1389 };
1390 
1391 static const struct snd_pcm_ops snd_intel8x0_ali_capture_ops = {
1392 	.open =		snd_intel8x0_capture_open,
1393 	.close =	snd_intel8x0_capture_close,
1394 	.ioctl =	snd_pcm_lib_ioctl,
1395 	.hw_params =	snd_intel8x0_hw_params,
1396 	.hw_free =	snd_intel8x0_hw_free,
1397 	.prepare =	snd_intel8x0_pcm_prepare,
1398 	.trigger =	snd_intel8x0_ali_trigger,
1399 	.pointer =	snd_intel8x0_pcm_pointer,
1400 };
1401 
1402 static const struct snd_pcm_ops snd_intel8x0_ali_capture_mic_ops = {
1403 	.open =		snd_intel8x0_mic_open,
1404 	.close =	snd_intel8x0_mic_close,
1405 	.ioctl =	snd_pcm_lib_ioctl,
1406 	.hw_params =	snd_intel8x0_hw_params,
1407 	.hw_free =	snd_intel8x0_hw_free,
1408 	.prepare =	snd_intel8x0_pcm_prepare,
1409 	.trigger =	snd_intel8x0_ali_trigger,
1410 	.pointer =	snd_intel8x0_pcm_pointer,
1411 };
1412 
1413 static const struct snd_pcm_ops snd_intel8x0_ali_ac97spdifout_ops = {
1414 	.open =		snd_intel8x0_ali_ac97spdifout_open,
1415 	.close =	snd_intel8x0_ali_ac97spdifout_close,
1416 	.ioctl =	snd_pcm_lib_ioctl,
1417 	.hw_params =	snd_intel8x0_hw_params,
1418 	.hw_free =	snd_intel8x0_hw_free,
1419 	.prepare =	snd_intel8x0_pcm_prepare,
1420 	.trigger =	snd_intel8x0_ali_trigger,
1421 	.pointer =	snd_intel8x0_pcm_pointer,
1422 };
1423 
1424 #if 0 // NYI
1425 static struct snd_pcm_ops snd_intel8x0_ali_spdifin_ops = {
1426 	.open =		snd_intel8x0_ali_spdifin_open,
1427 	.close =	snd_intel8x0_ali_spdifin_close,
1428 	.ioctl =	snd_pcm_lib_ioctl,
1429 	.hw_params =	snd_intel8x0_hw_params,
1430 	.hw_free =	snd_intel8x0_hw_free,
1431 	.prepare =	snd_intel8x0_pcm_prepare,
1432 	.trigger =	snd_intel8x0_pcm_trigger,
1433 	.pointer =	snd_intel8x0_pcm_pointer,
1434 };
1435 
1436 static struct snd_pcm_ops snd_intel8x0_ali_spdifout_ops = {
1437 	.open =		snd_intel8x0_ali_spdifout_open,
1438 	.close =	snd_intel8x0_ali_spdifout_close,
1439 	.ioctl =	snd_pcm_lib_ioctl,
1440 	.hw_params =	snd_intel8x0_hw_params,
1441 	.hw_free =	snd_intel8x0_hw_free,
1442 	.prepare =	snd_intel8x0_pcm_prepare,
1443 	.trigger =	snd_intel8x0_pcm_trigger,
1444 	.pointer =	snd_intel8x0_pcm_pointer,
1445 };
1446 #endif // NYI
1447 
1448 struct ich_pcm_table {
1449 	char *suffix;
1450 	const struct snd_pcm_ops *playback_ops;
1451 	const struct snd_pcm_ops *capture_ops;
1452 	size_t prealloc_size;
1453 	size_t prealloc_max_size;
1454 	int ac97_idx;
1455 };
1456 
1457 #define intel8x0_dma_type(chip) \
1458 	((chip)->fix_nocache ? SNDRV_DMA_TYPE_DEV_UC : SNDRV_DMA_TYPE_DEV)
1459 
1460 static int snd_intel8x0_pcm1(struct intel8x0 *chip, int device,
1461 			     struct ich_pcm_table *rec)
1462 {
1463 	struct snd_pcm *pcm;
1464 	int err;
1465 	char name[32];
1466 
1467 	if (rec->suffix)
1468 		sprintf(name, "Intel ICH - %s", rec->suffix);
1469 	else
1470 		strcpy(name, "Intel ICH");
1471 	err = snd_pcm_new(chip->card, name, device,
1472 			  rec->playback_ops ? 1 : 0,
1473 			  rec->capture_ops ? 1 : 0, &pcm);
1474 	if (err < 0)
1475 		return err;
1476 
1477 	if (rec->playback_ops)
1478 		snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, rec->playback_ops);
1479 	if (rec->capture_ops)
1480 		snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, rec->capture_ops);
1481 
1482 	pcm->private_data = chip;
1483 	pcm->info_flags = 0;
1484 	if (rec->suffix)
1485 		sprintf(pcm->name, "%s - %s", chip->card->shortname, rec->suffix);
1486 	else
1487 		strcpy(pcm->name, chip->card->shortname);
1488 	chip->pcm[device] = pcm;
1489 
1490 	snd_pcm_lib_preallocate_pages_for_all(pcm, intel8x0_dma_type(chip),
1491 					      &chip->pci->dev,
1492 					      rec->prealloc_size, rec->prealloc_max_size);
1493 
1494 	if (rec->playback_ops &&
1495 	    rec->playback_ops->open == snd_intel8x0_playback_open) {
1496 		struct snd_pcm_chmap *chmap;
1497 		int chs = 2;
1498 		if (chip->multi8)
1499 			chs = 8;
1500 		else if (chip->multi6)
1501 			chs = 6;
1502 		else if (chip->multi4)
1503 			chs = 4;
1504 		err = snd_pcm_add_chmap_ctls(pcm, SNDRV_PCM_STREAM_PLAYBACK,
1505 					     snd_pcm_alt_chmaps, chs, 0,
1506 					     &chmap);
1507 		if (err < 0)
1508 			return err;
1509 		chmap->channel_mask = SND_PCM_CHMAP_MASK_2468;
1510 		chip->ac97[0]->chmaps[SNDRV_PCM_STREAM_PLAYBACK] = chmap;
1511 	}
1512 
1513 	return 0;
1514 }
1515 
1516 static struct ich_pcm_table intel_pcms[] = {
1517 	{
1518 		.playback_ops = &snd_intel8x0_playback_ops,
1519 		.capture_ops = &snd_intel8x0_capture_ops,
1520 		.prealloc_size = 64 * 1024,
1521 		.prealloc_max_size = 128 * 1024,
1522 	},
1523 	{
1524 		.suffix = "MIC ADC",
1525 		.capture_ops = &snd_intel8x0_capture_mic_ops,
1526 		.prealloc_size = 0,
1527 		.prealloc_max_size = 128 * 1024,
1528 		.ac97_idx = ICHD_MIC,
1529 	},
1530 	{
1531 		.suffix = "MIC2 ADC",
1532 		.capture_ops = &snd_intel8x0_capture_mic2_ops,
1533 		.prealloc_size = 0,
1534 		.prealloc_max_size = 128 * 1024,
1535 		.ac97_idx = ICHD_MIC2,
1536 	},
1537 	{
1538 		.suffix = "ADC2",
1539 		.capture_ops = &snd_intel8x0_capture2_ops,
1540 		.prealloc_size = 0,
1541 		.prealloc_max_size = 128 * 1024,
1542 		.ac97_idx = ICHD_PCM2IN,
1543 	},
1544 	{
1545 		.suffix = "IEC958",
1546 		.playback_ops = &snd_intel8x0_spdif_ops,
1547 		.prealloc_size = 64 * 1024,
1548 		.prealloc_max_size = 128 * 1024,
1549 		.ac97_idx = ICHD_SPBAR,
1550 	},
1551 };
1552 
1553 static struct ich_pcm_table nforce_pcms[] = {
1554 	{
1555 		.playback_ops = &snd_intel8x0_playback_ops,
1556 		.capture_ops = &snd_intel8x0_capture_ops,
1557 		.prealloc_size = 64 * 1024,
1558 		.prealloc_max_size = 128 * 1024,
1559 	},
1560 	{
1561 		.suffix = "MIC ADC",
1562 		.capture_ops = &snd_intel8x0_capture_mic_ops,
1563 		.prealloc_size = 0,
1564 		.prealloc_max_size = 128 * 1024,
1565 		.ac97_idx = NVD_MIC,
1566 	},
1567 	{
1568 		.suffix = "IEC958",
1569 		.playback_ops = &snd_intel8x0_spdif_ops,
1570 		.prealloc_size = 64 * 1024,
1571 		.prealloc_max_size = 128 * 1024,
1572 		.ac97_idx = NVD_SPBAR,
1573 	},
1574 };
1575 
1576 static struct ich_pcm_table ali_pcms[] = {
1577 	{
1578 		.playback_ops = &snd_intel8x0_ali_playback_ops,
1579 		.capture_ops = &snd_intel8x0_ali_capture_ops,
1580 		.prealloc_size = 64 * 1024,
1581 		.prealloc_max_size = 128 * 1024,
1582 	},
1583 	{
1584 		.suffix = "MIC ADC",
1585 		.capture_ops = &snd_intel8x0_ali_capture_mic_ops,
1586 		.prealloc_size = 0,
1587 		.prealloc_max_size = 128 * 1024,
1588 		.ac97_idx = ALID_MIC,
1589 	},
1590 	{
1591 		.suffix = "IEC958",
1592 		.playback_ops = &snd_intel8x0_ali_ac97spdifout_ops,
1593 		/* .capture_ops = &snd_intel8x0_ali_spdifin_ops, */
1594 		.prealloc_size = 64 * 1024,
1595 		.prealloc_max_size = 128 * 1024,
1596 		.ac97_idx = ALID_AC97SPDIFOUT,
1597 	},
1598 #if 0 // NYI
1599 	{
1600 		.suffix = "HW IEC958",
1601 		.playback_ops = &snd_intel8x0_ali_spdifout_ops,
1602 		.prealloc_size = 64 * 1024,
1603 		.prealloc_max_size = 128 * 1024,
1604 	},
1605 #endif
1606 };
1607 
1608 static int snd_intel8x0_pcm(struct intel8x0 *chip)
1609 {
1610 	int i, tblsize, device, err;
1611 	struct ich_pcm_table *tbl, *rec;
1612 
1613 	switch (chip->device_type) {
1614 	case DEVICE_INTEL_ICH4:
1615 		tbl = intel_pcms;
1616 		tblsize = ARRAY_SIZE(intel_pcms);
1617 		if (spdif_aclink)
1618 			tblsize--;
1619 		break;
1620 	case DEVICE_NFORCE:
1621 		tbl = nforce_pcms;
1622 		tblsize = ARRAY_SIZE(nforce_pcms);
1623 		if (spdif_aclink)
1624 			tblsize--;
1625 		break;
1626 	case DEVICE_ALI:
1627 		tbl = ali_pcms;
1628 		tblsize = ARRAY_SIZE(ali_pcms);
1629 		break;
1630 	default:
1631 		tbl = intel_pcms;
1632 		tblsize = 2;
1633 		break;
1634 	}
1635 
1636 	device = 0;
1637 	for (i = 0; i < tblsize; i++) {
1638 		rec = tbl + i;
1639 		if (i > 0 && rec->ac97_idx) {
1640 			/* activate PCM only when associated AC'97 codec */
1641 			if (! chip->ichd[rec->ac97_idx].pcm)
1642 				continue;
1643 		}
1644 		err = snd_intel8x0_pcm1(chip, device, rec);
1645 		if (err < 0)
1646 			return err;
1647 		device++;
1648 	}
1649 
1650 	chip->pcm_devs = device;
1651 	return 0;
1652 }
1653 
1654 
1655 /*
1656  *  Mixer part
1657  */
1658 
1659 static void snd_intel8x0_mixer_free_ac97_bus(struct snd_ac97_bus *bus)
1660 {
1661 	struct intel8x0 *chip = bus->private_data;
1662 	chip->ac97_bus = NULL;
1663 }
1664 
1665 static void snd_intel8x0_mixer_free_ac97(struct snd_ac97 *ac97)
1666 {
1667 	struct intel8x0 *chip = ac97->private_data;
1668 	chip->ac97[ac97->num] = NULL;
1669 }
1670 
1671 static const struct ac97_pcm ac97_pcm_defs[] = {
1672 	/* front PCM */
1673 	{
1674 		.exclusive = 1,
1675 		.r = {	{
1676 				.slots = (1 << AC97_SLOT_PCM_LEFT) |
1677 					 (1 << AC97_SLOT_PCM_RIGHT) |
1678 					 (1 << AC97_SLOT_PCM_CENTER) |
1679 					 (1 << AC97_SLOT_PCM_SLEFT) |
1680 					 (1 << AC97_SLOT_PCM_SRIGHT) |
1681 					 (1 << AC97_SLOT_LFE)
1682 			},
1683 			{
1684 				.slots = (1 << AC97_SLOT_PCM_LEFT) |
1685 					 (1 << AC97_SLOT_PCM_RIGHT) |
1686 					 (1 << AC97_SLOT_PCM_LEFT_0) |
1687 					 (1 << AC97_SLOT_PCM_RIGHT_0)
1688 			}
1689 		}
1690 	},
1691 	/* PCM IN #1 */
1692 	{
1693 		.stream = 1,
1694 		.exclusive = 1,
1695 		.r = {	{
1696 				.slots = (1 << AC97_SLOT_PCM_LEFT) |
1697 					 (1 << AC97_SLOT_PCM_RIGHT)
1698 			}
1699 		}
1700 	},
1701 	/* MIC IN #1 */
1702 	{
1703 		.stream = 1,
1704 		.exclusive = 1,
1705 		.r = {	{
1706 				.slots = (1 << AC97_SLOT_MIC)
1707 			}
1708 		}
1709 	},
1710 	/* S/PDIF PCM */
1711 	{
1712 		.exclusive = 1,
1713 		.spdif = 1,
1714 		.r = {	{
1715 				.slots = (1 << AC97_SLOT_SPDIF_LEFT2) |
1716 					 (1 << AC97_SLOT_SPDIF_RIGHT2)
1717 			}
1718 		}
1719 	},
1720 	/* PCM IN #2 */
1721 	{
1722 		.stream = 1,
1723 		.exclusive = 1,
1724 		.r = {	{
1725 				.slots = (1 << AC97_SLOT_PCM_LEFT) |
1726 					 (1 << AC97_SLOT_PCM_RIGHT)
1727 			}
1728 		}
1729 	},
1730 	/* MIC IN #2 */
1731 	{
1732 		.stream = 1,
1733 		.exclusive = 1,
1734 		.r = {	{
1735 				.slots = (1 << AC97_SLOT_MIC)
1736 			}
1737 		}
1738 	},
1739 };
1740 
1741 static const struct ac97_quirk ac97_quirks[] = {
1742         {
1743 		.subvendor = 0x0e11,
1744 		.subdevice = 0x000e,
1745 		.name = "Compaq Deskpro EN",	/* AD1885 */
1746 		.type = AC97_TUNE_HP_ONLY
1747         },
1748 	{
1749 		.subvendor = 0x0e11,
1750 		.subdevice = 0x008a,
1751 		.name = "Compaq Evo W4000",	/* AD1885 */
1752 		.type = AC97_TUNE_HP_ONLY
1753 	},
1754 	{
1755 		.subvendor = 0x0e11,
1756 		.subdevice = 0x00b8,
1757 		.name = "Compaq Evo D510C",
1758 		.type = AC97_TUNE_HP_ONLY
1759 	},
1760         {
1761 		.subvendor = 0x0e11,
1762 		.subdevice = 0x0860,
1763 		.name = "HP/Compaq nx7010",
1764 		.type = AC97_TUNE_MUTE_LED
1765         },
1766 	{
1767 		.subvendor = 0x1014,
1768 		.subdevice = 0x0534,
1769 		.name = "ThinkPad X31",
1770 		.type = AC97_TUNE_INV_EAPD
1771 	},
1772 	{
1773 		.subvendor = 0x1014,
1774 		.subdevice = 0x1f00,
1775 		.name = "MS-9128",
1776 		.type = AC97_TUNE_ALC_JACK
1777 	},
1778 	{
1779 		.subvendor = 0x1014,
1780 		.subdevice = 0x0267,
1781 		.name = "IBM NetVista A30p",	/* AD1981B */
1782 		.type = AC97_TUNE_HP_ONLY
1783 	},
1784 	{
1785 		.subvendor = 0x1025,
1786 		.subdevice = 0x0082,
1787 		.name = "Acer Travelmate 2310",
1788 		.type = AC97_TUNE_HP_ONLY
1789 	},
1790 	{
1791 		.subvendor = 0x1025,
1792 		.subdevice = 0x0083,
1793 		.name = "Acer Aspire 3003LCi",
1794 		.type = AC97_TUNE_HP_ONLY
1795 	},
1796 	{
1797 		.subvendor = 0x1028,
1798 		.subdevice = 0x00d8,
1799 		.name = "Dell Precision 530",	/* AD1885 */
1800 		.type = AC97_TUNE_HP_ONLY
1801 	},
1802 	{
1803 		.subvendor = 0x1028,
1804 		.subdevice = 0x010d,
1805 		.name = "Dell",	/* which model?  AD1885 */
1806 		.type = AC97_TUNE_HP_ONLY
1807 	},
1808 	{
1809 		.subvendor = 0x1028,
1810 		.subdevice = 0x0126,
1811 		.name = "Dell Optiplex GX260",	/* AD1981A */
1812 		.type = AC97_TUNE_HP_ONLY
1813 	},
1814 	{
1815 		.subvendor = 0x1028,
1816 		.subdevice = 0x012c,
1817 		.name = "Dell Precision 650",	/* AD1981A */
1818 		.type = AC97_TUNE_HP_ONLY
1819 	},
1820 	{
1821 		.subvendor = 0x1028,
1822 		.subdevice = 0x012d,
1823 		.name = "Dell Precision 450",	/* AD1981B*/
1824 		.type = AC97_TUNE_HP_ONLY
1825 	},
1826 	{
1827 		.subvendor = 0x1028,
1828 		.subdevice = 0x0147,
1829 		.name = "Dell",	/* which model?  AD1981B*/
1830 		.type = AC97_TUNE_HP_ONLY
1831 	},
1832 	{
1833 		.subvendor = 0x1028,
1834 		.subdevice = 0x0151,
1835 		.name = "Dell Optiplex GX270",  /* AD1981B */
1836 		.type = AC97_TUNE_HP_ONLY
1837 	},
1838 	{
1839 		.subvendor = 0x1028,
1840 		.subdevice = 0x014e,
1841 		.name = "Dell D800", /* STAC9750/51 */
1842 		.type = AC97_TUNE_HP_ONLY
1843 	},
1844 	{
1845 		.subvendor = 0x1028,
1846 		.subdevice = 0x0163,
1847 		.name = "Dell Unknown",	/* STAC9750/51 */
1848 		.type = AC97_TUNE_HP_ONLY
1849 	},
1850 	{
1851 		.subvendor = 0x1028,
1852 		.subdevice = 0x016a,
1853 		.name = "Dell Inspiron 8600",	/* STAC9750/51 */
1854 		.type = AC97_TUNE_HP_ONLY
1855 	},
1856 	{
1857 		.subvendor = 0x1028,
1858 		.subdevice = 0x0182,
1859 		.name = "Dell Latitude D610",	/* STAC9750/51 */
1860 		.type = AC97_TUNE_HP_ONLY
1861 	},
1862 	{
1863 		.subvendor = 0x1028,
1864 		.subdevice = 0x0186,
1865 		.name = "Dell Latitude D810", /* cf. Malone #41015 */
1866 		.type = AC97_TUNE_HP_MUTE_LED
1867 	},
1868 	{
1869 		.subvendor = 0x1028,
1870 		.subdevice = 0x0188,
1871 		.name = "Dell Inspiron 6000",
1872 		.type = AC97_TUNE_HP_MUTE_LED /* cf. Malone #41015 */
1873 	},
1874 	{
1875 		.subvendor = 0x1028,
1876 		.subdevice = 0x0189,
1877 		.name = "Dell Inspiron 9300",
1878 		.type = AC97_TUNE_HP_MUTE_LED
1879 	},
1880 	{
1881 		.subvendor = 0x1028,
1882 		.subdevice = 0x0191,
1883 		.name = "Dell Inspiron 8600",
1884 		.type = AC97_TUNE_HP_ONLY
1885 	},
1886 	{
1887 		.subvendor = 0x103c,
1888 		.subdevice = 0x006d,
1889 		.name = "HP zv5000",
1890 		.type = AC97_TUNE_MUTE_LED	/*AD1981B*/
1891 	},
1892 	{	/* FIXME: which codec? */
1893 		.subvendor = 0x103c,
1894 		.subdevice = 0x00c3,
1895 		.name = "HP xw6000",
1896 		.type = AC97_TUNE_HP_ONLY
1897 	},
1898 	{
1899 		.subvendor = 0x103c,
1900 		.subdevice = 0x088c,
1901 		.name = "HP nc8000",
1902 		.type = AC97_TUNE_HP_MUTE_LED
1903 	},
1904 	{
1905 		.subvendor = 0x103c,
1906 		.subdevice = 0x0890,
1907 		.name = "HP nc6000",
1908 		.type = AC97_TUNE_MUTE_LED
1909 	},
1910 	{
1911 		.subvendor = 0x103c,
1912 		.subdevice = 0x129d,
1913 		.name = "HP xw8000",
1914 		.type = AC97_TUNE_HP_ONLY
1915 	},
1916 	{
1917 		.subvendor = 0x103c,
1918 		.subdevice = 0x0938,
1919 		.name = "HP nc4200",
1920 		.type = AC97_TUNE_HP_MUTE_LED
1921 	},
1922 	{
1923 		.subvendor = 0x103c,
1924 		.subdevice = 0x099c,
1925 		.name = "HP nx6110/nc6120",
1926 		.type = AC97_TUNE_HP_MUTE_LED
1927 	},
1928 	{
1929 		.subvendor = 0x103c,
1930 		.subdevice = 0x0944,
1931 		.name = "HP nc6220",
1932 		.type = AC97_TUNE_HP_MUTE_LED
1933 	},
1934 	{
1935 		.subvendor = 0x103c,
1936 		.subdevice = 0x0934,
1937 		.name = "HP nc8220",
1938 		.type = AC97_TUNE_HP_MUTE_LED
1939 	},
1940 	{
1941 		.subvendor = 0x103c,
1942 		.subdevice = 0x12f1,
1943 		.name = "HP xw8200",	/* AD1981B*/
1944 		.type = AC97_TUNE_HP_ONLY
1945 	},
1946 	{
1947 		.subvendor = 0x103c,
1948 		.subdevice = 0x12f2,
1949 		.name = "HP xw6200",
1950 		.type = AC97_TUNE_HP_ONLY
1951 	},
1952 	{
1953 		.subvendor = 0x103c,
1954 		.subdevice = 0x3008,
1955 		.name = "HP xw4200",	/* AD1981B*/
1956 		.type = AC97_TUNE_HP_ONLY
1957 	},
1958 	{
1959 		.subvendor = 0x104d,
1960 		.subdevice = 0x8144,
1961 		.name = "Sony",
1962 		.type = AC97_TUNE_INV_EAPD
1963 	},
1964 	{
1965 		.subvendor = 0x104d,
1966 		.subdevice = 0x8197,
1967 		.name = "Sony S1XP",
1968 		.type = AC97_TUNE_INV_EAPD
1969 	},
1970 	{
1971 		.subvendor = 0x104d,
1972 		.subdevice = 0x81c0,
1973 		.name = "Sony VAIO VGN-T350P", /*AD1981B*/
1974 		.type = AC97_TUNE_INV_EAPD
1975 	},
1976 	{
1977 		.subvendor = 0x104d,
1978 		.subdevice = 0x81c5,
1979 		.name = "Sony VAIO VGN-B1VP", /*AD1981B*/
1980 		.type = AC97_TUNE_INV_EAPD
1981 	},
1982  	{
1983 		.subvendor = 0x1043,
1984 		.subdevice = 0x80f3,
1985 		.name = "ASUS ICH5/AD1985",
1986 		.type = AC97_TUNE_AD_SHARING
1987 	},
1988 	{
1989 		.subvendor = 0x10cf,
1990 		.subdevice = 0x11c3,
1991 		.name = "Fujitsu-Siemens E4010",
1992 		.type = AC97_TUNE_HP_ONLY
1993 	},
1994 	{
1995 		.subvendor = 0x10cf,
1996 		.subdevice = 0x1225,
1997 		.name = "Fujitsu-Siemens T3010",
1998 		.type = AC97_TUNE_HP_ONLY
1999 	},
2000 	{
2001 		.subvendor = 0x10cf,
2002 		.subdevice = 0x1253,
2003 		.name = "Fujitsu S6210",	/* STAC9750/51 */
2004 		.type = AC97_TUNE_HP_ONLY
2005 	},
2006 	{
2007 		.subvendor = 0x10cf,
2008 		.subdevice = 0x127d,
2009 		.name = "Fujitsu Lifebook P7010",
2010 		.type = AC97_TUNE_HP_ONLY
2011 	},
2012 	{
2013 		.subvendor = 0x10cf,
2014 		.subdevice = 0x127e,
2015 		.name = "Fujitsu Lifebook C1211D",
2016 		.type = AC97_TUNE_HP_ONLY
2017 	},
2018 	{
2019 		.subvendor = 0x10cf,
2020 		.subdevice = 0x12ec,
2021 		.name = "Fujitsu-Siemens 4010",
2022 		.type = AC97_TUNE_HP_ONLY
2023 	},
2024 	{
2025 		.subvendor = 0x10cf,
2026 		.subdevice = 0x12f2,
2027 		.name = "Fujitsu-Siemens Celsius H320",
2028 		.type = AC97_TUNE_SWAP_HP
2029 	},
2030 	{
2031 		.subvendor = 0x10f1,
2032 		.subdevice = 0x2665,
2033 		.name = "Fujitsu-Siemens Celsius",	/* AD1981? */
2034 		.type = AC97_TUNE_HP_ONLY
2035 	},
2036 	{
2037 		.subvendor = 0x10f1,
2038 		.subdevice = 0x2885,
2039 		.name = "AMD64 Mobo",	/* ALC650 */
2040 		.type = AC97_TUNE_HP_ONLY
2041 	},
2042 	{
2043 		.subvendor = 0x10f1,
2044 		.subdevice = 0x2895,
2045 		.name = "Tyan Thunder K8WE",
2046 		.type = AC97_TUNE_HP_ONLY
2047 	},
2048 	{
2049 		.subvendor = 0x10f7,
2050 		.subdevice = 0x834c,
2051 		.name = "Panasonic CF-R4",
2052 		.type = AC97_TUNE_HP_ONLY,
2053 	},
2054 	{
2055 		.subvendor = 0x110a,
2056 		.subdevice = 0x0056,
2057 		.name = "Fujitsu-Siemens Scenic",	/* AD1981? */
2058 		.type = AC97_TUNE_HP_ONLY
2059 	},
2060 	{
2061 		.subvendor = 0x11d4,
2062 		.subdevice = 0x5375,
2063 		.name = "ADI AD1985 (discrete)",
2064 		.type = AC97_TUNE_HP_ONLY
2065 	},
2066 	{
2067 		.subvendor = 0x1462,
2068 		.subdevice = 0x5470,
2069 		.name = "MSI P4 ATX 645 Ultra",
2070 		.type = AC97_TUNE_HP_ONLY
2071 	},
2072 	{
2073 		.subvendor = 0x161f,
2074 		.subdevice = 0x202f,
2075 		.name = "Gateway M520",
2076 		.type = AC97_TUNE_INV_EAPD
2077 	},
2078 	{
2079 		.subvendor = 0x161f,
2080 		.subdevice = 0x203a,
2081 		.name = "Gateway 4525GZ",		/* AD1981B */
2082 		.type = AC97_TUNE_INV_EAPD
2083 	},
2084 	{
2085 		.subvendor = 0x1734,
2086 		.subdevice = 0x0088,
2087 		.name = "Fujitsu-Siemens D1522",	/* AD1981 */
2088 		.type = AC97_TUNE_HP_ONLY
2089 	},
2090 	{
2091 		.subvendor = 0x8086,
2092 		.subdevice = 0x2000,
2093 		.mask = 0xfff0,
2094 		.name = "Intel ICH5/AD1985",
2095 		.type = AC97_TUNE_AD_SHARING
2096 	},
2097 	{
2098 		.subvendor = 0x8086,
2099 		.subdevice = 0x4000,
2100 		.mask = 0xfff0,
2101 		.name = "Intel ICH5/AD1985",
2102 		.type = AC97_TUNE_AD_SHARING
2103 	},
2104 	{
2105 		.subvendor = 0x8086,
2106 		.subdevice = 0x4856,
2107 		.name = "Intel D845WN (82801BA)",
2108 		.type = AC97_TUNE_SWAP_HP
2109 	},
2110 	{
2111 		.subvendor = 0x8086,
2112 		.subdevice = 0x4d44,
2113 		.name = "Intel D850EMV2",	/* AD1885 */
2114 		.type = AC97_TUNE_HP_ONLY
2115 	},
2116 	{
2117 		.subvendor = 0x8086,
2118 		.subdevice = 0x4d56,
2119 		.name = "Intel ICH/AD1885",
2120 		.type = AC97_TUNE_HP_ONLY
2121 	},
2122 	{
2123 		.subvendor = 0x8086,
2124 		.subdevice = 0x6000,
2125 		.mask = 0xfff0,
2126 		.name = "Intel ICH5/AD1985",
2127 		.type = AC97_TUNE_AD_SHARING
2128 	},
2129 	{
2130 		.subvendor = 0x8086,
2131 		.subdevice = 0xe000,
2132 		.mask = 0xfff0,
2133 		.name = "Intel ICH5/AD1985",
2134 		.type = AC97_TUNE_AD_SHARING
2135 	},
2136 #if 0 /* FIXME: this seems wrong on most boards */
2137 	{
2138 		.subvendor = 0x8086,
2139 		.subdevice = 0xa000,
2140 		.mask = 0xfff0,
2141 		.name = "Intel ICH5/AD1985",
2142 		.type = AC97_TUNE_HP_ONLY
2143 	},
2144 #endif
2145 	{ } /* terminator */
2146 };
2147 
2148 static int snd_intel8x0_mixer(struct intel8x0 *chip, int ac97_clock,
2149 			      const char *quirk_override)
2150 {
2151 	struct snd_ac97_bus *pbus;
2152 	struct snd_ac97_template ac97;
2153 	int err;
2154 	unsigned int i, codecs;
2155 	unsigned int glob_sta = 0;
2156 	struct snd_ac97_bus_ops *ops;
2157 	static struct snd_ac97_bus_ops standard_bus_ops = {
2158 		.write = snd_intel8x0_codec_write,
2159 		.read = snd_intel8x0_codec_read,
2160 	};
2161 	static struct snd_ac97_bus_ops ali_bus_ops = {
2162 		.write = snd_intel8x0_ali_codec_write,
2163 		.read = snd_intel8x0_ali_codec_read,
2164 	};
2165 
2166 	chip->spdif_idx = -1; /* use PCMOUT (or disabled) */
2167 	if (!spdif_aclink) {
2168 		switch (chip->device_type) {
2169 		case DEVICE_NFORCE:
2170 			chip->spdif_idx = NVD_SPBAR;
2171 			break;
2172 		case DEVICE_ALI:
2173 			chip->spdif_idx = ALID_AC97SPDIFOUT;
2174 			break;
2175 		case DEVICE_INTEL_ICH4:
2176 			chip->spdif_idx = ICHD_SPBAR;
2177 			break;
2178 		}
2179 	}
2180 
2181 	chip->in_ac97_init = 1;
2182 
2183 	memset(&ac97, 0, sizeof(ac97));
2184 	ac97.private_data = chip;
2185 	ac97.private_free = snd_intel8x0_mixer_free_ac97;
2186 	ac97.scaps = AC97_SCAP_SKIP_MODEM | AC97_SCAP_POWER_SAVE;
2187 	if (chip->xbox)
2188 		ac97.scaps |= AC97_SCAP_DETECT_BY_VENDOR;
2189 	if (chip->device_type != DEVICE_ALI) {
2190 		glob_sta = igetdword(chip, ICHREG(GLOB_STA));
2191 		ops = &standard_bus_ops;
2192 		chip->in_sdin_init = 1;
2193 		codecs = 0;
2194 		for (i = 0; i < chip->max_codecs; i++) {
2195 			if (! (glob_sta & chip->codec_bit[i]))
2196 				continue;
2197 			if (chip->device_type == DEVICE_INTEL_ICH4) {
2198 				snd_intel8x0_codec_read_test(chip, codecs);
2199 				chip->ac97_sdin[codecs] =
2200 					igetbyte(chip, ICHREG(SDM)) & ICH_LDI_MASK;
2201 				if (snd_BUG_ON(chip->ac97_sdin[codecs] >= 3))
2202 					chip->ac97_sdin[codecs] = 0;
2203 			} else
2204 				chip->ac97_sdin[codecs] = i;
2205 			codecs++;
2206 		}
2207 		chip->in_sdin_init = 0;
2208 		if (! codecs)
2209 			codecs = 1;
2210 	} else {
2211 		ops = &ali_bus_ops;
2212 		codecs = 1;
2213 		/* detect the secondary codec */
2214 		for (i = 0; i < 100; i++) {
2215 			unsigned int reg = igetdword(chip, ICHREG(ALI_RTSR));
2216 			if (reg & 0x40) {
2217 				codecs = 2;
2218 				break;
2219 			}
2220 			iputdword(chip, ICHREG(ALI_RTSR), reg | 0x40);
2221 			udelay(1);
2222 		}
2223 	}
2224 	if ((err = snd_ac97_bus(chip->card, 0, ops, chip, &pbus)) < 0)
2225 		goto __err;
2226 	pbus->private_free = snd_intel8x0_mixer_free_ac97_bus;
2227 	if (ac97_clock >= 8000 && ac97_clock <= 48000)
2228 		pbus->clock = ac97_clock;
2229 	/* FIXME: my test board doesn't work well with VRA... */
2230 	if (chip->device_type == DEVICE_ALI)
2231 		pbus->no_vra = 1;
2232 	else
2233 		pbus->dra = 1;
2234 	chip->ac97_bus = pbus;
2235 	chip->ncodecs = codecs;
2236 
2237 	ac97.pci = chip->pci;
2238 	for (i = 0; i < codecs; i++) {
2239 		ac97.num = i;
2240 		if ((err = snd_ac97_mixer(pbus, &ac97, &chip->ac97[i])) < 0) {
2241 			if (err != -EACCES)
2242 				dev_err(chip->card->dev,
2243 					"Unable to initialize codec #%d\n", i);
2244 			if (i == 0)
2245 				goto __err;
2246 		}
2247 	}
2248 	/* tune up the primary codec */
2249 	snd_ac97_tune_hardware(chip->ac97[0], ac97_quirks, quirk_override);
2250 	/* enable separate SDINs for ICH4 */
2251 	if (chip->device_type == DEVICE_INTEL_ICH4)
2252 		pbus->isdin = 1;
2253 	/* find the available PCM streams */
2254 	i = ARRAY_SIZE(ac97_pcm_defs);
2255 	if (chip->device_type != DEVICE_INTEL_ICH4)
2256 		i -= 2;		/* do not allocate PCM2IN and MIC2 */
2257 	if (chip->spdif_idx < 0)
2258 		i--;		/* do not allocate S/PDIF */
2259 	err = snd_ac97_pcm_assign(pbus, i, ac97_pcm_defs);
2260 	if (err < 0)
2261 		goto __err;
2262 	chip->ichd[ICHD_PCMOUT].pcm = &pbus->pcms[0];
2263 	chip->ichd[ICHD_PCMIN].pcm = &pbus->pcms[1];
2264 	chip->ichd[ICHD_MIC].pcm = &pbus->pcms[2];
2265 	if (chip->spdif_idx >= 0)
2266 		chip->ichd[chip->spdif_idx].pcm = &pbus->pcms[3];
2267 	if (chip->device_type == DEVICE_INTEL_ICH4) {
2268 		chip->ichd[ICHD_PCM2IN].pcm = &pbus->pcms[4];
2269 		chip->ichd[ICHD_MIC2].pcm = &pbus->pcms[5];
2270 	}
2271 	/* enable separate SDINs for ICH4 */
2272 	if (chip->device_type == DEVICE_INTEL_ICH4) {
2273 		struct ac97_pcm *pcm = chip->ichd[ICHD_PCM2IN].pcm;
2274 		u8 tmp = igetbyte(chip, ICHREG(SDM));
2275 		tmp &= ~(ICH_DI2L_MASK|ICH_DI1L_MASK);
2276 		if (pcm) {
2277 			tmp |= ICH_SE;	/* steer enable for multiple SDINs */
2278 			tmp |= chip->ac97_sdin[0] << ICH_DI1L_SHIFT;
2279 			for (i = 1; i < 4; i++) {
2280 				if (pcm->r[0].codec[i]) {
2281 					tmp |= chip->ac97_sdin[pcm->r[0].codec[1]->num] << ICH_DI2L_SHIFT;
2282 					break;
2283 				}
2284 			}
2285 		} else {
2286 			tmp &= ~ICH_SE; /* steer disable */
2287 		}
2288 		iputbyte(chip, ICHREG(SDM), tmp);
2289 	}
2290 	if (pbus->pcms[0].r[0].slots & (1 << AC97_SLOT_PCM_SLEFT)) {
2291 		chip->multi4 = 1;
2292 		if (pbus->pcms[0].r[0].slots & (1 << AC97_SLOT_LFE)) {
2293 			chip->multi6 = 1;
2294 			if (chip->ac97[0]->flags & AC97_HAS_8CH)
2295 				chip->multi8 = 1;
2296 		}
2297 	}
2298 	if (pbus->pcms[0].r[1].rslots[0]) {
2299 		chip->dra = 1;
2300 	}
2301 	if (chip->device_type == DEVICE_INTEL_ICH4) {
2302 		if ((igetdword(chip, ICHREG(GLOB_STA)) & ICH_SAMPLE_CAP) == ICH_SAMPLE_16_20)
2303 			chip->smp20bit = 1;
2304 	}
2305 	if (chip->device_type == DEVICE_NFORCE && !spdif_aclink) {
2306 		/* 48kHz only */
2307 		chip->ichd[chip->spdif_idx].pcm->rates = SNDRV_PCM_RATE_48000;
2308 	}
2309 	if (chip->device_type == DEVICE_INTEL_ICH4 && !spdif_aclink) {
2310 		/* use slot 10/11 for SPDIF */
2311 		u32 val;
2312 		val = igetdword(chip, ICHREG(GLOB_CNT)) & ~ICH_PCM_SPDIF_MASK;
2313 		val |= ICH_PCM_SPDIF_1011;
2314 		iputdword(chip, ICHREG(GLOB_CNT), val);
2315 		snd_ac97_update_bits(chip->ac97[0], AC97_EXTENDED_STATUS, 0x03 << 4, 0x03 << 4);
2316 	}
2317 	chip->in_ac97_init = 0;
2318 	return 0;
2319 
2320  __err:
2321 	/* clear the cold-reset bit for the next chance */
2322 	if (chip->device_type != DEVICE_ALI)
2323 		iputdword(chip, ICHREG(GLOB_CNT),
2324 			  igetdword(chip, ICHREG(GLOB_CNT)) & ~ICH_AC97COLD);
2325 	return err;
2326 }
2327 
2328 
2329 /*
2330  *
2331  */
2332 
2333 static void do_ali_reset(struct intel8x0 *chip)
2334 {
2335 	iputdword(chip, ICHREG(ALI_SCR), ICH_ALI_SC_RESET);
2336 	iputdword(chip, ICHREG(ALI_FIFOCR1), 0x83838383);
2337 	iputdword(chip, ICHREG(ALI_FIFOCR2), 0x83838383);
2338 	iputdword(chip, ICHREG(ALI_FIFOCR3), 0x83838383);
2339 	iputdword(chip, ICHREG(ALI_INTERFACECR),
2340 		  ICH_ALI_IF_PI|ICH_ALI_IF_PO);
2341 	iputdword(chip, ICHREG(ALI_INTERRUPTCR), 0x00000000);
2342 	iputdword(chip, ICHREG(ALI_INTERRUPTSR), 0x00000000);
2343 }
2344 
2345 #ifdef CONFIG_SND_AC97_POWER_SAVE
2346 static struct snd_pci_quirk ich_chip_reset_mode[] = {
2347 	SND_PCI_QUIRK(0x1014, 0x051f, "Thinkpad R32", 1),
2348 	{ } /* end */
2349 };
2350 
2351 static int snd_intel8x0_ich_chip_cold_reset(struct intel8x0 *chip)
2352 {
2353 	unsigned int cnt;
2354 	/* ACLink on, 2 channels */
2355 
2356 	if (snd_pci_quirk_lookup(chip->pci, ich_chip_reset_mode))
2357 		return -EIO;
2358 
2359 	cnt = igetdword(chip, ICHREG(GLOB_CNT));
2360 	cnt &= ~(ICH_ACLINK | ICH_PCM_246_MASK);
2361 
2362 	/* do cold reset - the full ac97 powerdown may leave the controller
2363 	 * in a warm state but actually it cannot communicate with the codec.
2364 	 */
2365 	iputdword(chip, ICHREG(GLOB_CNT), cnt & ~ICH_AC97COLD);
2366 	cnt = igetdword(chip, ICHREG(GLOB_CNT));
2367 	udelay(10);
2368 	iputdword(chip, ICHREG(GLOB_CNT), cnt | ICH_AC97COLD);
2369 	msleep(1);
2370 	return 0;
2371 }
2372 #define snd_intel8x0_ich_chip_can_cold_reset(chip) \
2373 	(!snd_pci_quirk_lookup(chip->pci, ich_chip_reset_mode))
2374 #else
2375 #define snd_intel8x0_ich_chip_cold_reset(chip)	0
2376 #define snd_intel8x0_ich_chip_can_cold_reset(chip) (0)
2377 #endif
2378 
2379 static int snd_intel8x0_ich_chip_reset(struct intel8x0 *chip)
2380 {
2381 	unsigned long end_time;
2382 	unsigned int cnt;
2383 	/* ACLink on, 2 channels */
2384 	cnt = igetdword(chip, ICHREG(GLOB_CNT));
2385 	cnt &= ~(ICH_ACLINK | ICH_PCM_246_MASK);
2386 	/* finish cold or do warm reset */
2387 	cnt |= (cnt & ICH_AC97COLD) == 0 ? ICH_AC97COLD : ICH_AC97WARM;
2388 	iputdword(chip, ICHREG(GLOB_CNT), cnt);
2389 	end_time = (jiffies + (HZ / 4)) + 1;
2390 	do {
2391 		if ((igetdword(chip, ICHREG(GLOB_CNT)) & ICH_AC97WARM) == 0)
2392 			return 0;
2393 		schedule_timeout_uninterruptible(1);
2394 	} while (time_after_eq(end_time, jiffies));
2395 	dev_err(chip->card->dev, "AC'97 warm reset still in progress? [0x%x]\n",
2396 		   igetdword(chip, ICHREG(GLOB_CNT)));
2397 	return -EIO;
2398 }
2399 
2400 static int snd_intel8x0_ich_chip_init(struct intel8x0 *chip, int probing)
2401 {
2402 	unsigned long end_time;
2403 	unsigned int status, nstatus;
2404 	unsigned int cnt;
2405 	int err;
2406 
2407 	/* put logic to right state */
2408 	/* first clear status bits */
2409 	status = ICH_RCS | ICH_MCINT | ICH_POINT | ICH_PIINT;
2410 	if (chip->device_type == DEVICE_NFORCE)
2411 		status |= ICH_NVSPINT;
2412 	cnt = igetdword(chip, ICHREG(GLOB_STA));
2413 	iputdword(chip, ICHREG(GLOB_STA), cnt & status);
2414 
2415 	if (snd_intel8x0_ich_chip_can_cold_reset(chip))
2416 		err = snd_intel8x0_ich_chip_cold_reset(chip);
2417 	else
2418 		err = snd_intel8x0_ich_chip_reset(chip);
2419 	if (err < 0)
2420 		return err;
2421 
2422 	if (probing) {
2423 		/* wait for any codec ready status.
2424 		 * Once it becomes ready it should remain ready
2425 		 * as long as we do not disable the ac97 link.
2426 		 */
2427 		end_time = jiffies + HZ;
2428 		do {
2429 			status = igetdword(chip, ICHREG(GLOB_STA)) &
2430 				chip->codec_isr_bits;
2431 			if (status)
2432 				break;
2433 			schedule_timeout_uninterruptible(1);
2434 		} while (time_after_eq(end_time, jiffies));
2435 		if (! status) {
2436 			/* no codec is found */
2437 			dev_err(chip->card->dev,
2438 				"codec_ready: codec is not ready [0x%x]\n",
2439 				   igetdword(chip, ICHREG(GLOB_STA)));
2440 			return -EIO;
2441 		}
2442 
2443 		/* wait for other codecs ready status. */
2444 		end_time = jiffies + HZ / 4;
2445 		while (status != chip->codec_isr_bits &&
2446 		       time_after_eq(end_time, jiffies)) {
2447 			schedule_timeout_uninterruptible(1);
2448 			status |= igetdword(chip, ICHREG(GLOB_STA)) &
2449 				chip->codec_isr_bits;
2450 		}
2451 
2452 	} else {
2453 		/* resume phase */
2454 		int i;
2455 		status = 0;
2456 		for (i = 0; i < chip->ncodecs; i++)
2457 			if (chip->ac97[i])
2458 				status |= chip->codec_bit[chip->ac97_sdin[i]];
2459 		/* wait until all the probed codecs are ready */
2460 		end_time = jiffies + HZ;
2461 		do {
2462 			nstatus = igetdword(chip, ICHREG(GLOB_STA)) &
2463 				chip->codec_isr_bits;
2464 			if (status == nstatus)
2465 				break;
2466 			schedule_timeout_uninterruptible(1);
2467 		} while (time_after_eq(end_time, jiffies));
2468 	}
2469 
2470 	if (chip->device_type == DEVICE_SIS) {
2471 		/* unmute the output on SIS7012 */
2472 		iputword(chip, 0x4c, igetword(chip, 0x4c) | 1);
2473 	}
2474 	if (chip->device_type == DEVICE_NFORCE && !spdif_aclink) {
2475 		/* enable SPDIF interrupt */
2476 		unsigned int val;
2477 		pci_read_config_dword(chip->pci, 0x4c, &val);
2478 		val |= 0x1000000;
2479 		pci_write_config_dword(chip->pci, 0x4c, val);
2480 	}
2481       	return 0;
2482 }
2483 
2484 static int snd_intel8x0_ali_chip_init(struct intel8x0 *chip, int probing)
2485 {
2486 	u32 reg;
2487 	int i = 0;
2488 
2489 	reg = igetdword(chip, ICHREG(ALI_SCR));
2490 	if ((reg & 2) == 0)	/* Cold required */
2491 		reg |= 2;
2492 	else
2493 		reg |= 1;	/* Warm */
2494 	reg &= ~0x80000000;	/* ACLink on */
2495 	iputdword(chip, ICHREG(ALI_SCR), reg);
2496 
2497 	for (i = 0; i < HZ / 2; i++) {
2498 		if (! (igetdword(chip, ICHREG(ALI_INTERRUPTSR)) & ALI_INT_GPIO))
2499 			goto __ok;
2500 		schedule_timeout_uninterruptible(1);
2501 	}
2502 	dev_err(chip->card->dev, "AC'97 reset failed.\n");
2503 	if (probing)
2504 		return -EIO;
2505 
2506  __ok:
2507 	for (i = 0; i < HZ / 2; i++) {
2508 		reg = igetdword(chip, ICHREG(ALI_RTSR));
2509 		if (reg & 0x80) /* primary codec */
2510 			break;
2511 		iputdword(chip, ICHREG(ALI_RTSR), reg | 0x80);
2512 		schedule_timeout_uninterruptible(1);
2513 	}
2514 
2515 	do_ali_reset(chip);
2516 	return 0;
2517 }
2518 
2519 static int snd_intel8x0_chip_init(struct intel8x0 *chip, int probing)
2520 {
2521 	unsigned int i, timeout;
2522 	int err;
2523 
2524 	if (chip->device_type != DEVICE_ALI) {
2525 		if ((err = snd_intel8x0_ich_chip_init(chip, probing)) < 0)
2526 			return err;
2527 		iagetword(chip, 0);	/* clear semaphore flag */
2528 	} else {
2529 		if ((err = snd_intel8x0_ali_chip_init(chip, probing)) < 0)
2530 			return err;
2531 	}
2532 
2533 	/* disable interrupts */
2534 	for (i = 0; i < chip->bdbars_count; i++)
2535 		iputbyte(chip, ICH_REG_OFF_CR + chip->ichd[i].reg_offset, 0x00);
2536 	/* reset channels */
2537 	for (i = 0; i < chip->bdbars_count; i++)
2538 		iputbyte(chip, ICH_REG_OFF_CR + chip->ichd[i].reg_offset, ICH_RESETREGS);
2539 	for (i = 0; i < chip->bdbars_count; i++) {
2540 	        timeout = 100000;
2541 	        while (--timeout != 0) {
2542         		if ((igetbyte(chip, ICH_REG_OFF_CR + chip->ichd[i].reg_offset) & ICH_RESETREGS) == 0)
2543         		        break;
2544                 }
2545                 if (timeout == 0)
2546 			dev_err(chip->card->dev, "reset of registers failed?\n");
2547         }
2548 	/* initialize Buffer Descriptor Lists */
2549 	for (i = 0; i < chip->bdbars_count; i++)
2550 		iputdword(chip, ICH_REG_OFF_BDBAR + chip->ichd[i].reg_offset,
2551 			  chip->ichd[i].bdbar_addr);
2552 	return 0;
2553 }
2554 
2555 static int snd_intel8x0_free(struct intel8x0 *chip)
2556 {
2557 	unsigned int i;
2558 
2559 	if (chip->irq < 0)
2560 		goto __hw_end;
2561 	/* disable interrupts */
2562 	for (i = 0; i < chip->bdbars_count; i++)
2563 		iputbyte(chip, ICH_REG_OFF_CR + chip->ichd[i].reg_offset, 0x00);
2564 	/* reset channels */
2565 	for (i = 0; i < chip->bdbars_count; i++)
2566 		iputbyte(chip, ICH_REG_OFF_CR + chip->ichd[i].reg_offset, ICH_RESETREGS);
2567 	if (chip->device_type == DEVICE_NFORCE && !spdif_aclink) {
2568 		/* stop the spdif interrupt */
2569 		unsigned int val;
2570 		pci_read_config_dword(chip->pci, 0x4c, &val);
2571 		val &= ~0x1000000;
2572 		pci_write_config_dword(chip->pci, 0x4c, val);
2573 	}
2574 	/* --- */
2575 
2576       __hw_end:
2577 	if (chip->irq >= 0)
2578 		free_irq(chip->irq, chip);
2579 	if (chip->bdbars.area)
2580 		snd_dma_free_pages(&chip->bdbars);
2581 	if (chip->addr)
2582 		pci_iounmap(chip->pci, chip->addr);
2583 	if (chip->bmaddr)
2584 		pci_iounmap(chip->pci, chip->bmaddr);
2585 	pci_release_regions(chip->pci);
2586 	pci_disable_device(chip->pci);
2587 	kfree(chip);
2588 	return 0;
2589 }
2590 
2591 #ifdef CONFIG_PM_SLEEP
2592 /*
2593  * power management
2594  */
2595 static int intel8x0_suspend(struct device *dev)
2596 {
2597 	struct snd_card *card = dev_get_drvdata(dev);
2598 	struct intel8x0 *chip = card->private_data;
2599 	int i;
2600 
2601 	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
2602 	for (i = 0; i < chip->ncodecs; i++)
2603 		snd_ac97_suspend(chip->ac97[i]);
2604 	if (chip->device_type == DEVICE_INTEL_ICH4)
2605 		chip->sdm_saved = igetbyte(chip, ICHREG(SDM));
2606 
2607 	if (chip->irq >= 0) {
2608 		free_irq(chip->irq, chip);
2609 		chip->irq = -1;
2610 	}
2611 	return 0;
2612 }
2613 
2614 static int intel8x0_resume(struct device *dev)
2615 {
2616 	struct pci_dev *pci = to_pci_dev(dev);
2617 	struct snd_card *card = dev_get_drvdata(dev);
2618 	struct intel8x0 *chip = card->private_data;
2619 	int i;
2620 
2621 	snd_intel8x0_chip_init(chip, 0);
2622 	if (request_irq(pci->irq, snd_intel8x0_interrupt,
2623 			IRQF_SHARED, KBUILD_MODNAME, chip)) {
2624 		dev_err(dev, "unable to grab IRQ %d, disabling device\n",
2625 			pci->irq);
2626 		snd_card_disconnect(card);
2627 		return -EIO;
2628 	}
2629 	chip->irq = pci->irq;
2630 	synchronize_irq(chip->irq);
2631 
2632 	/* re-initialize mixer stuff */
2633 	if (chip->device_type == DEVICE_INTEL_ICH4 && !spdif_aclink) {
2634 		/* enable separate SDINs for ICH4 */
2635 		iputbyte(chip, ICHREG(SDM), chip->sdm_saved);
2636 		/* use slot 10/11 for SPDIF */
2637 		iputdword(chip, ICHREG(GLOB_CNT),
2638 			  (igetdword(chip, ICHREG(GLOB_CNT)) & ~ICH_PCM_SPDIF_MASK) |
2639 			  ICH_PCM_SPDIF_1011);
2640 	}
2641 
2642 	for (i = 0; i < chip->ncodecs; i++)
2643 		snd_ac97_resume(chip->ac97[i]);
2644 
2645 	/* resume status */
2646 	for (i = 0; i < chip->bdbars_count; i++) {
2647 		struct ichdev *ichdev = &chip->ichd[i];
2648 		unsigned long port = ichdev->reg_offset;
2649 		if (! ichdev->substream || ! ichdev->suspended)
2650 			continue;
2651 		if (ichdev->ichd == ICHD_PCMOUT)
2652 			snd_intel8x0_setup_pcm_out(chip, ichdev->substream->runtime);
2653 		iputdword(chip, port + ICH_REG_OFF_BDBAR, ichdev->bdbar_addr);
2654 		iputbyte(chip, port + ICH_REG_OFF_LVI, ichdev->lvi);
2655 		iputbyte(chip, port + ICH_REG_OFF_CIV, ichdev->civ);
2656 		iputbyte(chip, port + ichdev->roff_sr, ICH_FIFOE | ICH_BCIS | ICH_LVBCI);
2657 	}
2658 
2659 	snd_power_change_state(card, SNDRV_CTL_POWER_D0);
2660 	return 0;
2661 }
2662 
2663 static SIMPLE_DEV_PM_OPS(intel8x0_pm, intel8x0_suspend, intel8x0_resume);
2664 #define INTEL8X0_PM_OPS	&intel8x0_pm
2665 #else
2666 #define INTEL8X0_PM_OPS	NULL
2667 #endif /* CONFIG_PM_SLEEP */
2668 
2669 #define INTEL8X0_TESTBUF_SIZE	32768	/* enough large for one shot */
2670 
2671 static void intel8x0_measure_ac97_clock(struct intel8x0 *chip)
2672 {
2673 	struct snd_pcm_substream *subs;
2674 	struct ichdev *ichdev;
2675 	unsigned long port;
2676 	unsigned long pos, pos1, t;
2677 	int civ, timeout = 1000, attempt = 1;
2678 	ktime_t start_time, stop_time;
2679 
2680 	if (chip->ac97_bus->clock != 48000)
2681 		return; /* specified in module option */
2682 
2683       __again:
2684 	subs = chip->pcm[0]->streams[0].substream;
2685 	if (! subs || subs->dma_buffer.bytes < INTEL8X0_TESTBUF_SIZE) {
2686 		dev_warn(chip->card->dev,
2687 			 "no playback buffer allocated - aborting measure ac97 clock\n");
2688 		return;
2689 	}
2690 	ichdev = &chip->ichd[ICHD_PCMOUT];
2691 	ichdev->physbuf = subs->dma_buffer.addr;
2692 	ichdev->size = ichdev->fragsize = INTEL8X0_TESTBUF_SIZE;
2693 	ichdev->substream = NULL; /* don't process interrupts */
2694 
2695 	/* set rate */
2696 	if (snd_ac97_set_rate(chip->ac97[0], AC97_PCM_FRONT_DAC_RATE, 48000) < 0) {
2697 		dev_err(chip->card->dev, "cannot set ac97 rate: clock = %d\n",
2698 			chip->ac97_bus->clock);
2699 		return;
2700 	}
2701 	snd_intel8x0_setup_periods(chip, ichdev);
2702 	port = ichdev->reg_offset;
2703 	spin_lock_irq(&chip->reg_lock);
2704 	chip->in_measurement = 1;
2705 	/* trigger */
2706 	if (chip->device_type != DEVICE_ALI)
2707 		iputbyte(chip, port + ICH_REG_OFF_CR, ICH_IOCE | ICH_STARTBM);
2708 	else {
2709 		iputbyte(chip, port + ICH_REG_OFF_CR, ICH_IOCE);
2710 		iputdword(chip, ICHREG(ALI_DMACR), 1 << ichdev->ali_slot);
2711 	}
2712 	start_time = ktime_get();
2713 	spin_unlock_irq(&chip->reg_lock);
2714 	msleep(50);
2715 	spin_lock_irq(&chip->reg_lock);
2716 	/* check the position */
2717 	do {
2718 		civ = igetbyte(chip, ichdev->reg_offset + ICH_REG_OFF_CIV);
2719 		pos1 = igetword(chip, ichdev->reg_offset + ichdev->roff_picb);
2720 		if (pos1 == 0) {
2721 			udelay(10);
2722 			continue;
2723 		}
2724 		if (civ == igetbyte(chip, ichdev->reg_offset + ICH_REG_OFF_CIV) &&
2725 		    pos1 == igetword(chip, ichdev->reg_offset + ichdev->roff_picb))
2726 			break;
2727 	} while (timeout--);
2728 	if (pos1 == 0) {	/* oops, this value is not reliable */
2729 		pos = 0;
2730 	} else {
2731 		pos = ichdev->fragsize1;
2732 		pos -= pos1 << ichdev->pos_shift;
2733 		pos += ichdev->position;
2734 	}
2735 	chip->in_measurement = 0;
2736 	stop_time = ktime_get();
2737 	/* stop */
2738 	if (chip->device_type == DEVICE_ALI) {
2739 		iputdword(chip, ICHREG(ALI_DMACR), 1 << (ichdev->ali_slot + 16));
2740 		iputbyte(chip, port + ICH_REG_OFF_CR, 0);
2741 		while (igetbyte(chip, port + ICH_REG_OFF_CR))
2742 			;
2743 	} else {
2744 		iputbyte(chip, port + ICH_REG_OFF_CR, 0);
2745 		while (!(igetbyte(chip, port + ichdev->roff_sr) & ICH_DCH))
2746 			;
2747 	}
2748 	iputbyte(chip, port + ICH_REG_OFF_CR, ICH_RESETREGS);
2749 	spin_unlock_irq(&chip->reg_lock);
2750 
2751 	if (pos == 0) {
2752 		dev_err(chip->card->dev,
2753 			"measure - unreliable DMA position..\n");
2754 	      __retry:
2755 		if (attempt < 3) {
2756 			msleep(300);
2757 			attempt++;
2758 			goto __again;
2759 		}
2760 		goto __end;
2761 	}
2762 
2763 	pos /= 4;
2764 	t = ktime_us_delta(stop_time, start_time);
2765 	dev_info(chip->card->dev,
2766 		 "%s: measured %lu usecs (%lu samples)\n", __func__, t, pos);
2767 	if (t == 0) {
2768 		dev_err(chip->card->dev, "?? calculation error..\n");
2769 		goto __retry;
2770 	}
2771 	pos *= 1000;
2772 	pos = (pos / t) * 1000 + ((pos % t) * 1000) / t;
2773 	if (pos < 40000 || pos >= 60000) {
2774 		/* abnormal value. hw problem? */
2775 		dev_info(chip->card->dev, "measured clock %ld rejected\n", pos);
2776 		goto __retry;
2777 	} else if (pos > 40500 && pos < 41500)
2778 		/* first exception - 41000Hz reference clock */
2779 		chip->ac97_bus->clock = 41000;
2780 	else if (pos > 43600 && pos < 44600)
2781 		/* second exception - 44100HZ reference clock */
2782 		chip->ac97_bus->clock = 44100;
2783 	else if (pos < 47500 || pos > 48500)
2784 		/* not 48000Hz, tuning the clock.. */
2785 		chip->ac97_bus->clock = (chip->ac97_bus->clock * 48000) / pos;
2786       __end:
2787 	dev_info(chip->card->dev, "clocking to %d\n", chip->ac97_bus->clock);
2788 	snd_ac97_update_power(chip->ac97[0], AC97_PCM_FRONT_DAC_RATE, 0);
2789 }
2790 
2791 static struct snd_pci_quirk intel8x0_clock_list[] = {
2792 	SND_PCI_QUIRK(0x0e11, 0x008a, "AD1885", 41000),
2793 	SND_PCI_QUIRK(0x1014, 0x0581, "AD1981B", 48000),
2794 	SND_PCI_QUIRK(0x1028, 0x00be, "AD1885", 44100),
2795 	SND_PCI_QUIRK(0x1028, 0x0177, "AD1980", 48000),
2796 	SND_PCI_QUIRK(0x1028, 0x01ad, "AD1981B", 48000),
2797 	SND_PCI_QUIRK(0x1043, 0x80f3, "AD1985", 48000),
2798 	{ }	/* terminator */
2799 };
2800 
2801 static int intel8x0_in_clock_list(struct intel8x0 *chip)
2802 {
2803 	struct pci_dev *pci = chip->pci;
2804 	const struct snd_pci_quirk *wl;
2805 
2806 	wl = snd_pci_quirk_lookup(pci, intel8x0_clock_list);
2807 	if (!wl)
2808 		return 0;
2809 	dev_info(chip->card->dev, "white list rate for %04x:%04x is %i\n",
2810 	       pci->subsystem_vendor, pci->subsystem_device, wl->value);
2811 	chip->ac97_bus->clock = wl->value;
2812 	return 1;
2813 }
2814 
2815 static void snd_intel8x0_proc_read(struct snd_info_entry * entry,
2816 				   struct snd_info_buffer *buffer)
2817 {
2818 	struct intel8x0 *chip = entry->private_data;
2819 	unsigned int tmp;
2820 
2821 	snd_iprintf(buffer, "Intel8x0\n\n");
2822 	if (chip->device_type == DEVICE_ALI)
2823 		return;
2824 	tmp = igetdword(chip, ICHREG(GLOB_STA));
2825 	snd_iprintf(buffer, "Global control        : 0x%08x\n", igetdword(chip, ICHREG(GLOB_CNT)));
2826 	snd_iprintf(buffer, "Global status         : 0x%08x\n", tmp);
2827 	if (chip->device_type == DEVICE_INTEL_ICH4)
2828 		snd_iprintf(buffer, "SDM                   : 0x%08x\n", igetdword(chip, ICHREG(SDM)));
2829 	snd_iprintf(buffer, "AC'97 codecs ready    :");
2830 	if (tmp & chip->codec_isr_bits) {
2831 		int i;
2832 		static const char *codecs[3] = {
2833 			"primary", "secondary", "tertiary"
2834 		};
2835 		for (i = 0; i < chip->max_codecs; i++)
2836 			if (tmp & chip->codec_bit[i])
2837 				snd_iprintf(buffer, " %s", codecs[i]);
2838 	} else
2839 		snd_iprintf(buffer, " none");
2840 	snd_iprintf(buffer, "\n");
2841 	if (chip->device_type == DEVICE_INTEL_ICH4 ||
2842 	    chip->device_type == DEVICE_SIS)
2843 		snd_iprintf(buffer, "AC'97 codecs SDIN     : %i %i %i\n",
2844 			chip->ac97_sdin[0],
2845 			chip->ac97_sdin[1],
2846 			chip->ac97_sdin[2]);
2847 }
2848 
2849 static void snd_intel8x0_proc_init(struct intel8x0 *chip)
2850 {
2851 	snd_card_ro_proc_new(chip->card, "intel8x0", chip,
2852 			     snd_intel8x0_proc_read);
2853 }
2854 
2855 static int snd_intel8x0_dev_free(struct snd_device *device)
2856 {
2857 	struct intel8x0 *chip = device->device_data;
2858 	return snd_intel8x0_free(chip);
2859 }
2860 
2861 struct ich_reg_info {
2862 	unsigned int int_sta_mask;
2863 	unsigned int offset;
2864 };
2865 
2866 static unsigned int ich_codec_bits[3] = {
2867 	ICH_PCR, ICH_SCR, ICH_TCR
2868 };
2869 static unsigned int sis_codec_bits[3] = {
2870 	ICH_PCR, ICH_SCR, ICH_SIS_TCR
2871 };
2872 
2873 static int snd_intel8x0_inside_vm(struct pci_dev *pci)
2874 {
2875 	int result  = inside_vm;
2876 	char *msg   = NULL;
2877 
2878 	/* check module parameter first (override detection) */
2879 	if (result >= 0) {
2880 		msg = result ? "enable (forced) VM" : "disable (forced) VM";
2881 		goto fini;
2882 	}
2883 
2884 	/* check for known (emulated) devices */
2885 	result = 0;
2886 	if (pci->subsystem_vendor == PCI_SUBVENDOR_ID_REDHAT_QUMRANET &&
2887 	    pci->subsystem_device == PCI_SUBDEVICE_ID_QEMU) {
2888 		/* KVM emulated sound, PCI SSID: 1af4:1100 */
2889 		msg = "enable KVM";
2890 		result = 1;
2891 	} else if (pci->subsystem_vendor == 0x1ab8) {
2892 		/* Parallels VM emulated sound, PCI SSID: 1ab8:xxxx */
2893 		msg = "enable Parallels VM";
2894 		result = 1;
2895 	}
2896 
2897 fini:
2898 	if (msg != NULL)
2899 		dev_info(&pci->dev, "%s optimization\n", msg);
2900 
2901 	return result;
2902 }
2903 
2904 static int snd_intel8x0_create(struct snd_card *card,
2905 			       struct pci_dev *pci,
2906 			       unsigned long device_type,
2907 			       struct intel8x0 **r_intel8x0)
2908 {
2909 	struct intel8x0 *chip;
2910 	int err;
2911 	unsigned int i;
2912 	unsigned int int_sta_masks;
2913 	struct ichdev *ichdev;
2914 	static struct snd_device_ops ops = {
2915 		.dev_free =	snd_intel8x0_dev_free,
2916 	};
2917 
2918 	static unsigned int bdbars[] = {
2919 		3, /* DEVICE_INTEL */
2920 		6, /* DEVICE_INTEL_ICH4 */
2921 		3, /* DEVICE_SIS */
2922 		6, /* DEVICE_ALI */
2923 		4, /* DEVICE_NFORCE */
2924 	};
2925 	static struct ich_reg_info intel_regs[6] = {
2926 		{ ICH_PIINT, 0 },
2927 		{ ICH_POINT, 0x10 },
2928 		{ ICH_MCINT, 0x20 },
2929 		{ ICH_M2INT, 0x40 },
2930 		{ ICH_P2INT, 0x50 },
2931 		{ ICH_SPINT, 0x60 },
2932 	};
2933 	static struct ich_reg_info nforce_regs[4] = {
2934 		{ ICH_PIINT, 0 },
2935 		{ ICH_POINT, 0x10 },
2936 		{ ICH_MCINT, 0x20 },
2937 		{ ICH_NVSPINT, 0x70 },
2938 	};
2939 	static struct ich_reg_info ali_regs[6] = {
2940 		{ ALI_INT_PCMIN, 0x40 },
2941 		{ ALI_INT_PCMOUT, 0x50 },
2942 		{ ALI_INT_MICIN, 0x60 },
2943 		{ ALI_INT_CODECSPDIFOUT, 0x70 },
2944 		{ ALI_INT_SPDIFIN, 0xa0 },
2945 		{ ALI_INT_SPDIFOUT, 0xb0 },
2946 	};
2947 	struct ich_reg_info *tbl;
2948 
2949 	*r_intel8x0 = NULL;
2950 
2951 	if ((err = pci_enable_device(pci)) < 0)
2952 		return err;
2953 
2954 	chip = kzalloc(sizeof(*chip), GFP_KERNEL);
2955 	if (chip == NULL) {
2956 		pci_disable_device(pci);
2957 		return -ENOMEM;
2958 	}
2959 	spin_lock_init(&chip->reg_lock);
2960 	chip->device_type = device_type;
2961 	chip->card = card;
2962 	chip->pci = pci;
2963 	chip->irq = -1;
2964 
2965 	/* module parameters */
2966 	chip->buggy_irq = buggy_irq;
2967 	chip->buggy_semaphore = buggy_semaphore;
2968 	if (xbox)
2969 		chip->xbox = 1;
2970 
2971 	chip->inside_vm = snd_intel8x0_inside_vm(pci);
2972 
2973 	/*
2974 	 * Intel 82443MX running a 100MHz processor system bus has a hardware
2975 	 * bug, which aborts PCI busmaster for audio transfer.  A workaround
2976 	 * is to set the pages as non-cached.  For details, see the errata in
2977 	 *     http://download.intel.com/design/chipsets/specupdt/24505108.pdf
2978 	 */
2979 	if (pci->vendor == PCI_VENDOR_ID_INTEL &&
2980 	    pci->device == PCI_DEVICE_ID_INTEL_440MX)
2981 		chip->fix_nocache = 1; /* enable workaround */
2982 
2983 	if ((err = pci_request_regions(pci, card->shortname)) < 0) {
2984 		kfree(chip);
2985 		pci_disable_device(pci);
2986 		return err;
2987 	}
2988 
2989 	if (device_type == DEVICE_ALI) {
2990 		/* ALI5455 has no ac97 region */
2991 		chip->bmaddr = pci_iomap(pci, 0, 0);
2992 		goto port_inited;
2993 	}
2994 
2995 	if (pci_resource_flags(pci, 2) & IORESOURCE_MEM) /* ICH4 and Nforce */
2996 		chip->addr = pci_iomap(pci, 2, 0);
2997 	else
2998 		chip->addr = pci_iomap(pci, 0, 0);
2999 	if (!chip->addr) {
3000 		dev_err(card->dev, "AC'97 space ioremap problem\n");
3001 		snd_intel8x0_free(chip);
3002 		return -EIO;
3003 	}
3004 	if (pci_resource_flags(pci, 3) & IORESOURCE_MEM) /* ICH4 */
3005 		chip->bmaddr = pci_iomap(pci, 3, 0);
3006 	else
3007 		chip->bmaddr = pci_iomap(pci, 1, 0);
3008 
3009  port_inited:
3010 	if (!chip->bmaddr) {
3011 		dev_err(card->dev, "Controller space ioremap problem\n");
3012 		snd_intel8x0_free(chip);
3013 		return -EIO;
3014 	}
3015 	chip->bdbars_count = bdbars[device_type];
3016 
3017 	/* initialize offsets */
3018 	switch (device_type) {
3019 	case DEVICE_NFORCE:
3020 		tbl = nforce_regs;
3021 		break;
3022 	case DEVICE_ALI:
3023 		tbl = ali_regs;
3024 		break;
3025 	default:
3026 		tbl = intel_regs;
3027 		break;
3028 	}
3029 	for (i = 0; i < chip->bdbars_count; i++) {
3030 		ichdev = &chip->ichd[i];
3031 		ichdev->ichd = i;
3032 		ichdev->reg_offset = tbl[i].offset;
3033 		ichdev->int_sta_mask = tbl[i].int_sta_mask;
3034 		if (device_type == DEVICE_SIS) {
3035 			/* SiS 7012 swaps the registers */
3036 			ichdev->roff_sr = ICH_REG_OFF_PICB;
3037 			ichdev->roff_picb = ICH_REG_OFF_SR;
3038 		} else {
3039 			ichdev->roff_sr = ICH_REG_OFF_SR;
3040 			ichdev->roff_picb = ICH_REG_OFF_PICB;
3041 		}
3042 		if (device_type == DEVICE_ALI)
3043 			ichdev->ali_slot = (ichdev->reg_offset - 0x40) / 0x10;
3044 		/* SIS7012 handles the pcm data in bytes, others are in samples */
3045 		ichdev->pos_shift = (device_type == DEVICE_SIS) ? 0 : 1;
3046 	}
3047 
3048 	/* allocate buffer descriptor lists */
3049 	/* the start of each lists must be aligned to 8 bytes */
3050 	if (snd_dma_alloc_pages(intel8x0_dma_type(chip), &pci->dev,
3051 				chip->bdbars_count * sizeof(u32) * ICH_MAX_FRAGS * 2,
3052 				&chip->bdbars) < 0) {
3053 		snd_intel8x0_free(chip);
3054 		dev_err(card->dev, "cannot allocate buffer descriptors\n");
3055 		return -ENOMEM;
3056 	}
3057 	/* tables must be aligned to 8 bytes here, but the kernel pages
3058 	   are much bigger, so we don't care (on i386) */
3059 	int_sta_masks = 0;
3060 	for (i = 0; i < chip->bdbars_count; i++) {
3061 		ichdev = &chip->ichd[i];
3062 		ichdev->bdbar = ((__le32 *)chip->bdbars.area) +
3063 			(i * ICH_MAX_FRAGS * 2);
3064 		ichdev->bdbar_addr = chip->bdbars.addr +
3065 			(i * sizeof(u32) * ICH_MAX_FRAGS * 2);
3066 		int_sta_masks |= ichdev->int_sta_mask;
3067 	}
3068 	chip->int_sta_reg = device_type == DEVICE_ALI ?
3069 		ICH_REG_ALI_INTERRUPTSR : ICH_REG_GLOB_STA;
3070 	chip->int_sta_mask = int_sta_masks;
3071 
3072 	pci_set_master(pci);
3073 
3074 	switch(chip->device_type) {
3075 	case DEVICE_INTEL_ICH4:
3076 		/* ICH4 can have three codecs */
3077 		chip->max_codecs = 3;
3078 		chip->codec_bit = ich_codec_bits;
3079 		chip->codec_ready_bits = ICH_PRI | ICH_SRI | ICH_TRI;
3080 		break;
3081 	case DEVICE_SIS:
3082 		/* recent SIS7012 can have three codecs */
3083 		chip->max_codecs = 3;
3084 		chip->codec_bit = sis_codec_bits;
3085 		chip->codec_ready_bits = ICH_PRI | ICH_SRI | ICH_SIS_TRI;
3086 		break;
3087 	default:
3088 		/* others up to two codecs */
3089 		chip->max_codecs = 2;
3090 		chip->codec_bit = ich_codec_bits;
3091 		chip->codec_ready_bits = ICH_PRI | ICH_SRI;
3092 		break;
3093 	}
3094 	for (i = 0; i < chip->max_codecs; i++)
3095 		chip->codec_isr_bits |= chip->codec_bit[i];
3096 
3097 	if ((err = snd_intel8x0_chip_init(chip, 1)) < 0) {
3098 		snd_intel8x0_free(chip);
3099 		return err;
3100 	}
3101 
3102 	/* request irq after initializaing int_sta_mask, etc */
3103 	if (request_irq(pci->irq, snd_intel8x0_interrupt,
3104 			IRQF_SHARED, KBUILD_MODNAME, chip)) {
3105 		dev_err(card->dev, "unable to grab IRQ %d\n", pci->irq);
3106 		snd_intel8x0_free(chip);
3107 		return -EBUSY;
3108 	}
3109 	chip->irq = pci->irq;
3110 
3111 	if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
3112 		snd_intel8x0_free(chip);
3113 		return err;
3114 	}
3115 
3116 	*r_intel8x0 = chip;
3117 	return 0;
3118 }
3119 
3120 static struct shortname_table {
3121 	unsigned int id;
3122 	const char *s;
3123 } shortnames[] = {
3124 	{ PCI_DEVICE_ID_INTEL_82801AA_5, "Intel 82801AA-ICH" },
3125 	{ PCI_DEVICE_ID_INTEL_82801AB_5, "Intel 82901AB-ICH0" },
3126 	{ PCI_DEVICE_ID_INTEL_82801BA_4, "Intel 82801BA-ICH2" },
3127 	{ PCI_DEVICE_ID_INTEL_440MX, "Intel 440MX" },
3128 	{ PCI_DEVICE_ID_INTEL_82801CA_5, "Intel 82801CA-ICH3" },
3129 	{ PCI_DEVICE_ID_INTEL_82801DB_5, "Intel 82801DB-ICH4" },
3130 	{ PCI_DEVICE_ID_INTEL_82801EB_5, "Intel ICH5" },
3131 	{ PCI_DEVICE_ID_INTEL_ESB_5, "Intel 6300ESB" },
3132 	{ PCI_DEVICE_ID_INTEL_ICH6_18, "Intel ICH6" },
3133 	{ PCI_DEVICE_ID_INTEL_ICH7_20, "Intel ICH7" },
3134 	{ PCI_DEVICE_ID_INTEL_ESB2_14, "Intel ESB2" },
3135 	{ PCI_DEVICE_ID_SI_7012, "SiS SI7012" },
3136 	{ PCI_DEVICE_ID_NVIDIA_MCP1_AUDIO, "NVidia nForce" },
3137 	{ PCI_DEVICE_ID_NVIDIA_MCP2_AUDIO, "NVidia nForce2" },
3138 	{ PCI_DEVICE_ID_NVIDIA_MCP3_AUDIO, "NVidia nForce3" },
3139 	{ PCI_DEVICE_ID_NVIDIA_CK8S_AUDIO, "NVidia CK8S" },
3140 	{ PCI_DEVICE_ID_NVIDIA_CK804_AUDIO, "NVidia CK804" },
3141 	{ PCI_DEVICE_ID_NVIDIA_CK8_AUDIO, "NVidia CK8" },
3142 	{ 0x003a, "NVidia MCP04" },
3143 	{ 0x746d, "AMD AMD8111" },
3144 	{ 0x7445, "AMD AMD768" },
3145 	{ 0x5455, "ALi M5455" },
3146 	{ 0, NULL },
3147 };
3148 
3149 static struct snd_pci_quirk spdif_aclink_defaults[] = {
3150 	SND_PCI_QUIRK(0x147b, 0x1c1a, "ASUS KN8", 1),
3151 	{ } /* end */
3152 };
3153 
3154 /* look up white/black list for SPDIF over ac-link */
3155 static int check_default_spdif_aclink(struct pci_dev *pci)
3156 {
3157 	const struct snd_pci_quirk *w;
3158 
3159 	w = snd_pci_quirk_lookup(pci, spdif_aclink_defaults);
3160 	if (w) {
3161 		if (w->value)
3162 			dev_dbg(&pci->dev,
3163 				"Using SPDIF over AC-Link for %s\n",
3164 				    snd_pci_quirk_name(w));
3165 		else
3166 			dev_dbg(&pci->dev,
3167 				"Using integrated SPDIF DMA for %s\n",
3168 				    snd_pci_quirk_name(w));
3169 		return w->value;
3170 	}
3171 	return 0;
3172 }
3173 
3174 static int snd_intel8x0_probe(struct pci_dev *pci,
3175 			      const struct pci_device_id *pci_id)
3176 {
3177 	struct snd_card *card;
3178 	struct intel8x0 *chip;
3179 	int err;
3180 	struct shortname_table *name;
3181 
3182 	err = snd_card_new(&pci->dev, index, id, THIS_MODULE, 0, &card);
3183 	if (err < 0)
3184 		return err;
3185 
3186 	if (spdif_aclink < 0)
3187 		spdif_aclink = check_default_spdif_aclink(pci);
3188 
3189 	strcpy(card->driver, "ICH");
3190 	if (!spdif_aclink) {
3191 		switch (pci_id->driver_data) {
3192 		case DEVICE_NFORCE:
3193 			strcpy(card->driver, "NFORCE");
3194 			break;
3195 		case DEVICE_INTEL_ICH4:
3196 			strcpy(card->driver, "ICH4");
3197 		}
3198 	}
3199 
3200 	strcpy(card->shortname, "Intel ICH");
3201 	for (name = shortnames; name->id; name++) {
3202 		if (pci->device == name->id) {
3203 			strcpy(card->shortname, name->s);
3204 			break;
3205 		}
3206 	}
3207 
3208 	if (buggy_irq < 0) {
3209 		/* some Nforce[2] and ICH boards have problems with IRQ handling.
3210 		 * Needs to return IRQ_HANDLED for unknown irqs.
3211 		 */
3212 		if (pci_id->driver_data == DEVICE_NFORCE)
3213 			buggy_irq = 1;
3214 		else
3215 			buggy_irq = 0;
3216 	}
3217 
3218 	if ((err = snd_intel8x0_create(card, pci, pci_id->driver_data,
3219 				       &chip)) < 0) {
3220 		snd_card_free(card);
3221 		return err;
3222 	}
3223 	card->private_data = chip;
3224 
3225 	if ((err = snd_intel8x0_mixer(chip, ac97_clock, ac97_quirk)) < 0) {
3226 		snd_card_free(card);
3227 		return err;
3228 	}
3229 	if ((err = snd_intel8x0_pcm(chip)) < 0) {
3230 		snd_card_free(card);
3231 		return err;
3232 	}
3233 
3234 	snd_intel8x0_proc_init(chip);
3235 
3236 	snprintf(card->longname, sizeof(card->longname),
3237 		 "%s with %s at irq %i", card->shortname,
3238 		 snd_ac97_get_short_name(chip->ac97[0]), chip->irq);
3239 
3240 	if (ac97_clock == 0 || ac97_clock == 1) {
3241 		if (ac97_clock == 0) {
3242 			if (intel8x0_in_clock_list(chip) == 0)
3243 				intel8x0_measure_ac97_clock(chip);
3244 		} else {
3245 			intel8x0_measure_ac97_clock(chip);
3246 		}
3247 	}
3248 
3249 	if ((err = snd_card_register(card)) < 0) {
3250 		snd_card_free(card);
3251 		return err;
3252 	}
3253 	pci_set_drvdata(pci, card);
3254 	return 0;
3255 }
3256 
3257 static void snd_intel8x0_remove(struct pci_dev *pci)
3258 {
3259 	snd_card_free(pci_get_drvdata(pci));
3260 }
3261 
3262 static struct pci_driver intel8x0_driver = {
3263 	.name = KBUILD_MODNAME,
3264 	.id_table = snd_intel8x0_ids,
3265 	.probe = snd_intel8x0_probe,
3266 	.remove = snd_intel8x0_remove,
3267 	.driver = {
3268 		.pm = INTEL8X0_PM_OPS,
3269 	},
3270 };
3271 
3272 module_pci_driver(intel8x0_driver);
3273