xref: /openbmc/linux/sound/pci/intel8x0.c (revision 82e6fdd6)
1 /*
2  *   ALSA driver for Intel ICH (i8x0) chipsets
3  *
4  *	Copyright (c) 2000 Jaroslav Kysela <perex@perex.cz>
5  *
6  *
7  *   This code also contains alpha support for SiS 735 chipsets provided
8  *   by Mike Pieper <mptei@users.sourceforge.net>. We have no datasheet
9  *   for SiS735, so the code is not fully functional.
10  *
11  *
12  *   This program is free software; you can redistribute it and/or modify
13  *   it under the terms of the GNU General Public License as published by
14  *   the Free Software Foundation; either version 2 of the License, or
15  *   (at your option) any later version.
16  *
17  *   This program is distributed in the hope that it will be useful,
18  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
19  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
20  *   GNU General Public License for more details.
21  *
22  *   You should have received a copy of the GNU General Public License
23  *   along with this program; if not, write to the Free Software
24  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
25 
26  *
27  */
28 
29 #include <linux/io.h>
30 #include <linux/delay.h>
31 #include <linux/interrupt.h>
32 #include <linux/init.h>
33 #include <linux/pci.h>
34 #include <linux/slab.h>
35 #include <linux/module.h>
36 #include <sound/core.h>
37 #include <sound/pcm.h>
38 #include <sound/ac97_codec.h>
39 #include <sound/info.h>
40 #include <sound/initval.h>
41 /* for 440MX workaround */
42 #include <asm/pgtable.h>
43 #ifdef CONFIG_X86
44 #include <asm/set_memory.h>
45 #endif
46 
47 MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
48 MODULE_DESCRIPTION("Intel 82801AA,82901AB,i810,i820,i830,i840,i845,MX440; SiS 7012; Ali 5455");
49 MODULE_LICENSE("GPL");
50 MODULE_SUPPORTED_DEVICE("{{Intel,82801AA-ICH},"
51 		"{Intel,82901AB-ICH0},"
52 		"{Intel,82801BA-ICH2},"
53 		"{Intel,82801CA-ICH3},"
54 		"{Intel,82801DB-ICH4},"
55 		"{Intel,ICH5},"
56 		"{Intel,ICH6},"
57 		"{Intel,ICH7},"
58 		"{Intel,6300ESB},"
59 		"{Intel,ESB2},"
60 		"{Intel,MX440},"
61 		"{SiS,SI7012},"
62 		"{NVidia,nForce Audio},"
63 		"{NVidia,nForce2 Audio},"
64 		"{NVidia,nForce3 Audio},"
65 		"{NVidia,MCP04},"
66 		"{NVidia,MCP501},"
67 		"{NVidia,CK804},"
68 		"{NVidia,CK8},"
69 		"{NVidia,CK8S},"
70 		"{AMD,AMD768},"
71 		"{AMD,AMD8111},"
72 	        "{ALI,M5455}}");
73 
74 static int index = SNDRV_DEFAULT_IDX1;	/* Index 0-MAX */
75 static char *id = SNDRV_DEFAULT_STR1;	/* ID for this card */
76 static int ac97_clock;
77 static char *ac97_quirk;
78 static bool buggy_semaphore;
79 static int buggy_irq = -1; /* auto-check */
80 static bool xbox;
81 static int spdif_aclink = -1;
82 static int inside_vm = -1;
83 
84 module_param(index, int, 0444);
85 MODULE_PARM_DESC(index, "Index value for Intel i8x0 soundcard.");
86 module_param(id, charp, 0444);
87 MODULE_PARM_DESC(id, "ID string for Intel i8x0 soundcard.");
88 module_param(ac97_clock, int, 0444);
89 MODULE_PARM_DESC(ac97_clock, "AC'97 codec clock (0 = whitelist + auto-detect, 1 = force autodetect).");
90 module_param(ac97_quirk, charp, 0444);
91 MODULE_PARM_DESC(ac97_quirk, "AC'97 workaround for strange hardware.");
92 module_param(buggy_semaphore, bool, 0444);
93 MODULE_PARM_DESC(buggy_semaphore, "Enable workaround for hardwares with problematic codec semaphores.");
94 module_param(buggy_irq, bint, 0444);
95 MODULE_PARM_DESC(buggy_irq, "Enable workaround for buggy interrupts on some motherboards.");
96 module_param(xbox, bool, 0444);
97 MODULE_PARM_DESC(xbox, "Set to 1 for Xbox, if you have problems with the AC'97 codec detection.");
98 module_param(spdif_aclink, int, 0444);
99 MODULE_PARM_DESC(spdif_aclink, "S/PDIF over AC-link.");
100 module_param(inside_vm, bint, 0444);
101 MODULE_PARM_DESC(inside_vm, "KVM/Parallels optimization.");
102 
103 /* just for backward compatibility */
104 static bool enable;
105 module_param(enable, bool, 0444);
106 static int joystick;
107 module_param(joystick, int, 0444);
108 
109 /*
110  *  Direct registers
111  */
112 enum { DEVICE_INTEL, DEVICE_INTEL_ICH4, DEVICE_SIS, DEVICE_ALI, DEVICE_NFORCE };
113 
114 #define ICHREG(x) ICH_REG_##x
115 
116 #define DEFINE_REGSET(name,base) \
117 enum { \
118 	ICH_REG_##name##_BDBAR	= base + 0x0,	/* dword - buffer descriptor list base address */ \
119 	ICH_REG_##name##_CIV	= base + 0x04,	/* byte - current index value */ \
120 	ICH_REG_##name##_LVI	= base + 0x05,	/* byte - last valid index */ \
121 	ICH_REG_##name##_SR	= base + 0x06,	/* byte - status register */ \
122 	ICH_REG_##name##_PICB	= base + 0x08,	/* word - position in current buffer */ \
123 	ICH_REG_##name##_PIV	= base + 0x0a,	/* byte - prefetched index value */ \
124 	ICH_REG_##name##_CR	= base + 0x0b,	/* byte - control register */ \
125 };
126 
127 /* busmaster blocks */
128 DEFINE_REGSET(OFF, 0);		/* offset */
129 DEFINE_REGSET(PI, 0x00);	/* PCM in */
130 DEFINE_REGSET(PO, 0x10);	/* PCM out */
131 DEFINE_REGSET(MC, 0x20);	/* Mic in */
132 
133 /* ICH4 busmaster blocks */
134 DEFINE_REGSET(MC2, 0x40);	/* Mic in 2 */
135 DEFINE_REGSET(PI2, 0x50);	/* PCM in 2 */
136 DEFINE_REGSET(SP, 0x60);	/* SPDIF out */
137 
138 /* values for each busmaster block */
139 
140 /* LVI */
141 #define ICH_REG_LVI_MASK		0x1f
142 
143 /* SR */
144 #define ICH_FIFOE			0x10	/* FIFO error */
145 #define ICH_BCIS			0x08	/* buffer completion interrupt status */
146 #define ICH_LVBCI			0x04	/* last valid buffer completion interrupt */
147 #define ICH_CELV			0x02	/* current equals last valid */
148 #define ICH_DCH				0x01	/* DMA controller halted */
149 
150 /* PIV */
151 #define ICH_REG_PIV_MASK		0x1f	/* mask */
152 
153 /* CR */
154 #define ICH_IOCE			0x10	/* interrupt on completion enable */
155 #define ICH_FEIE			0x08	/* fifo error interrupt enable */
156 #define ICH_LVBIE			0x04	/* last valid buffer interrupt enable */
157 #define ICH_RESETREGS			0x02	/* reset busmaster registers */
158 #define ICH_STARTBM			0x01	/* start busmaster operation */
159 
160 
161 /* global block */
162 #define ICH_REG_GLOB_CNT		0x2c	/* dword - global control */
163 #define   ICH_PCM_SPDIF_MASK	0xc0000000	/* s/pdif pcm slot mask (ICH4) */
164 #define   ICH_PCM_SPDIF_NONE	0x00000000	/* reserved - undefined */
165 #define   ICH_PCM_SPDIF_78	0x40000000	/* s/pdif pcm on slots 7&8 */
166 #define   ICH_PCM_SPDIF_69	0x80000000	/* s/pdif pcm on slots 6&9 */
167 #define   ICH_PCM_SPDIF_1011	0xc0000000	/* s/pdif pcm on slots 10&11 */
168 #define   ICH_PCM_20BIT		0x00400000	/* 20-bit samples (ICH4) */
169 #define   ICH_PCM_246_MASK	0x00300000	/* chan mask (not all chips) */
170 #define   ICH_PCM_8		0x00300000      /* 8 channels (not all chips) */
171 #define   ICH_PCM_6		0x00200000	/* 6 channels (not all chips) */
172 #define   ICH_PCM_4		0x00100000	/* 4 channels (not all chips) */
173 #define   ICH_PCM_2		0x00000000	/* 2 channels (stereo) */
174 #define   ICH_SIS_PCM_246_MASK	0x000000c0	/* 6 channels (SIS7012) */
175 #define   ICH_SIS_PCM_6		0x00000080	/* 6 channels (SIS7012) */
176 #define   ICH_SIS_PCM_4		0x00000040	/* 4 channels (SIS7012) */
177 #define   ICH_SIS_PCM_2		0x00000000	/* 2 channels (SIS7012) */
178 #define   ICH_TRIE		0x00000040	/* tertiary resume interrupt enable */
179 #define   ICH_SRIE		0x00000020	/* secondary resume interrupt enable */
180 #define   ICH_PRIE		0x00000010	/* primary resume interrupt enable */
181 #define   ICH_ACLINK		0x00000008	/* AClink shut off */
182 #define   ICH_AC97WARM		0x00000004	/* AC'97 warm reset */
183 #define   ICH_AC97COLD		0x00000002	/* AC'97 cold reset */
184 #define   ICH_GIE		0x00000001	/* GPI interrupt enable */
185 #define ICH_REG_GLOB_STA		0x30	/* dword - global status */
186 #define   ICH_TRI		0x20000000	/* ICH4: tertiary (AC_SDIN2) resume interrupt */
187 #define   ICH_TCR		0x10000000	/* ICH4: tertiary (AC_SDIN2) codec ready */
188 #define   ICH_BCS		0x08000000	/* ICH4: bit clock stopped */
189 #define   ICH_SPINT		0x04000000	/* ICH4: S/PDIF interrupt */
190 #define   ICH_P2INT		0x02000000	/* ICH4: PCM2-In interrupt */
191 #define   ICH_M2INT		0x01000000	/* ICH4: Mic2-In interrupt */
192 #define   ICH_SAMPLE_CAP	0x00c00000	/* ICH4: sample capability bits (RO) */
193 #define   ICH_SAMPLE_16_20	0x00400000	/* ICH4: 16- and 20-bit samples */
194 #define   ICH_MULTICHAN_CAP	0x00300000	/* ICH4: multi-channel capability bits (RO) */
195 #define   ICH_SIS_TRI		0x00080000	/* SIS: tertiary resume irq */
196 #define   ICH_SIS_TCR		0x00040000	/* SIS: tertiary codec ready */
197 #define   ICH_MD3		0x00020000	/* modem power down semaphore */
198 #define   ICH_AD3		0x00010000	/* audio power down semaphore */
199 #define   ICH_RCS		0x00008000	/* read completion status */
200 #define   ICH_BIT3		0x00004000	/* bit 3 slot 12 */
201 #define   ICH_BIT2		0x00002000	/* bit 2 slot 12 */
202 #define   ICH_BIT1		0x00001000	/* bit 1 slot 12 */
203 #define   ICH_SRI		0x00000800	/* secondary (AC_SDIN1) resume interrupt */
204 #define   ICH_PRI		0x00000400	/* primary (AC_SDIN0) resume interrupt */
205 #define   ICH_SCR		0x00000200	/* secondary (AC_SDIN1) codec ready */
206 #define   ICH_PCR		0x00000100	/* primary (AC_SDIN0) codec ready */
207 #define   ICH_MCINT		0x00000080	/* MIC capture interrupt */
208 #define   ICH_POINT		0x00000040	/* playback interrupt */
209 #define   ICH_PIINT		0x00000020	/* capture interrupt */
210 #define   ICH_NVSPINT		0x00000010	/* nforce spdif interrupt */
211 #define   ICH_MOINT		0x00000004	/* modem playback interrupt */
212 #define   ICH_MIINT		0x00000002	/* modem capture interrupt */
213 #define   ICH_GSCI		0x00000001	/* GPI status change interrupt */
214 #define ICH_REG_ACC_SEMA		0x34	/* byte - codec write semaphore */
215 #define   ICH_CAS		0x01		/* codec access semaphore */
216 #define ICH_REG_SDM		0x80
217 #define   ICH_DI2L_MASK		0x000000c0	/* PCM In 2, Mic In 2 data in line */
218 #define   ICH_DI2L_SHIFT	6
219 #define   ICH_DI1L_MASK		0x00000030	/* PCM In 1, Mic In 1 data in line */
220 #define   ICH_DI1L_SHIFT	4
221 #define   ICH_SE		0x00000008	/* steer enable */
222 #define   ICH_LDI_MASK		0x00000003	/* last codec read data input */
223 
224 #define ICH_MAX_FRAGS		32		/* max hw frags */
225 
226 
227 /*
228  * registers for Ali5455
229  */
230 
231 /* ALi 5455 busmaster blocks */
232 DEFINE_REGSET(AL_PI, 0x40);	/* ALi PCM in */
233 DEFINE_REGSET(AL_PO, 0x50);	/* Ali PCM out */
234 DEFINE_REGSET(AL_MC, 0x60);	/* Ali Mic in */
235 DEFINE_REGSET(AL_CDC_SPO, 0x70);	/* Ali Codec SPDIF out */
236 DEFINE_REGSET(AL_CENTER, 0x80);		/* Ali center out */
237 DEFINE_REGSET(AL_LFE, 0x90);		/* Ali center out */
238 DEFINE_REGSET(AL_CLR_SPI, 0xa0);	/* Ali Controller SPDIF in */
239 DEFINE_REGSET(AL_CLR_SPO, 0xb0);	/* Ali Controller SPDIF out */
240 DEFINE_REGSET(AL_I2S, 0xc0);	/* Ali I2S in */
241 DEFINE_REGSET(AL_PI2, 0xd0);	/* Ali PCM2 in */
242 DEFINE_REGSET(AL_MC2, 0xe0);	/* Ali Mic2 in */
243 
244 enum {
245 	ICH_REG_ALI_SCR = 0x00,		/* System Control Register */
246 	ICH_REG_ALI_SSR = 0x04,		/* System Status Register  */
247 	ICH_REG_ALI_DMACR = 0x08,	/* DMA Control Register    */
248 	ICH_REG_ALI_FIFOCR1 = 0x0c,	/* FIFO Control Register 1  */
249 	ICH_REG_ALI_INTERFACECR = 0x10,	/* Interface Control Register */
250 	ICH_REG_ALI_INTERRUPTCR = 0x14,	/* Interrupt control Register */
251 	ICH_REG_ALI_INTERRUPTSR = 0x18,	/* Interrupt  Status Register */
252 	ICH_REG_ALI_FIFOCR2 = 0x1c,	/* FIFO Control Register 2   */
253 	ICH_REG_ALI_CPR = 0x20,		/* Command Port Register     */
254 	ICH_REG_ALI_CPR_ADDR = 0x22,	/* ac97 addr write */
255 	ICH_REG_ALI_SPR = 0x24,		/* Status Port Register      */
256 	ICH_REG_ALI_SPR_ADDR = 0x26,	/* ac97 addr read */
257 	ICH_REG_ALI_FIFOCR3 = 0x2c,	/* FIFO Control Register 3  */
258 	ICH_REG_ALI_TTSR = 0x30,	/* Transmit Tag Slot Register */
259 	ICH_REG_ALI_RTSR = 0x34,	/* Receive Tag Slot  Register */
260 	ICH_REG_ALI_CSPSR = 0x38,	/* Command/Status Port Status Register */
261 	ICH_REG_ALI_CAS = 0x3c,		/* Codec Write Semaphore Register */
262 	ICH_REG_ALI_HWVOL = 0xf0,	/* hardware volume control/status */
263 	ICH_REG_ALI_I2SCR = 0xf4,	/* I2S control/status */
264 	ICH_REG_ALI_SPDIFCSR = 0xf8,	/* spdif channel status register  */
265 	ICH_REG_ALI_SPDIFICS = 0xfc,	/* spdif interface control/status  */
266 };
267 
268 #define ALI_CAS_SEM_BUSY	0x80000000
269 #define ALI_CPR_ADDR_SECONDARY	0x100
270 #define ALI_CPR_ADDR_READ	0x80
271 #define ALI_CSPSR_CODEC_READY	0x08
272 #define ALI_CSPSR_READ_OK	0x02
273 #define ALI_CSPSR_WRITE_OK	0x01
274 
275 /* interrupts for the whole chip by interrupt status register finish */
276 
277 #define ALI_INT_MICIN2		(1<<26)
278 #define ALI_INT_PCMIN2		(1<<25)
279 #define ALI_INT_I2SIN		(1<<24)
280 #define ALI_INT_SPDIFOUT	(1<<23)	/* controller spdif out INTERRUPT */
281 #define ALI_INT_SPDIFIN		(1<<22)
282 #define ALI_INT_LFEOUT		(1<<21)
283 #define ALI_INT_CENTEROUT	(1<<20)
284 #define ALI_INT_CODECSPDIFOUT	(1<<19)
285 #define ALI_INT_MICIN		(1<<18)
286 #define ALI_INT_PCMOUT		(1<<17)
287 #define ALI_INT_PCMIN		(1<<16)
288 #define ALI_INT_CPRAIS		(1<<7)	/* command port available */
289 #define ALI_INT_SPRAIS		(1<<5)	/* status port available */
290 #define ALI_INT_GPIO		(1<<1)
291 #define ALI_INT_MASK		(ALI_INT_SPDIFOUT|ALI_INT_CODECSPDIFOUT|\
292 				 ALI_INT_MICIN|ALI_INT_PCMOUT|ALI_INT_PCMIN)
293 
294 #define ICH_ALI_SC_RESET	(1<<31)	/* master reset */
295 #define ICH_ALI_SC_AC97_DBL	(1<<30)
296 #define ICH_ALI_SC_CODEC_SPDF	(3<<20)	/* 1=7/8, 2=6/9, 3=10/11 */
297 #define ICH_ALI_SC_IN_BITS	(3<<18)
298 #define ICH_ALI_SC_OUT_BITS	(3<<16)
299 #define ICH_ALI_SC_6CH_CFG	(3<<14)
300 #define ICH_ALI_SC_PCM_4	(1<<8)
301 #define ICH_ALI_SC_PCM_6	(2<<8)
302 #define ICH_ALI_SC_PCM_246_MASK	(3<<8)
303 
304 #define ICH_ALI_SS_SEC_ID	(3<<5)
305 #define ICH_ALI_SS_PRI_ID	(3<<3)
306 
307 #define ICH_ALI_IF_AC97SP	(1<<21)
308 #define ICH_ALI_IF_MC		(1<<20)
309 #define ICH_ALI_IF_PI		(1<<19)
310 #define ICH_ALI_IF_MC2		(1<<18)
311 #define ICH_ALI_IF_PI2		(1<<17)
312 #define ICH_ALI_IF_LINE_SRC	(1<<15)	/* 0/1 = slot 3/6 */
313 #define ICH_ALI_IF_MIC_SRC	(1<<14)	/* 0/1 = slot 3/6 */
314 #define ICH_ALI_IF_SPDF_SRC	(3<<12)	/* 00 = PCM, 01 = AC97-in, 10 = spdif-in, 11 = i2s */
315 #define ICH_ALI_IF_AC97_OUT	(3<<8)	/* 00 = PCM, 10 = spdif-in, 11 = i2s */
316 #define ICH_ALI_IF_PO_SPDF	(1<<3)
317 #define ICH_ALI_IF_PO		(1<<1)
318 
319 /*
320  *
321  */
322 
323 enum {
324 	ICHD_PCMIN,
325 	ICHD_PCMOUT,
326 	ICHD_MIC,
327 	ICHD_MIC2,
328 	ICHD_PCM2IN,
329 	ICHD_SPBAR,
330 	ICHD_LAST = ICHD_SPBAR
331 };
332 enum {
333 	NVD_PCMIN,
334 	NVD_PCMOUT,
335 	NVD_MIC,
336 	NVD_SPBAR,
337 	NVD_LAST = NVD_SPBAR
338 };
339 enum {
340 	ALID_PCMIN,
341 	ALID_PCMOUT,
342 	ALID_MIC,
343 	ALID_AC97SPDIFOUT,
344 	ALID_SPDIFIN,
345 	ALID_SPDIFOUT,
346 	ALID_LAST = ALID_SPDIFOUT
347 };
348 
349 #define get_ichdev(substream) (substream->runtime->private_data)
350 
351 struct ichdev {
352 	unsigned int ichd;			/* ich device number */
353 	unsigned long reg_offset;		/* offset to bmaddr */
354 	u32 *bdbar;				/* CPU address (32bit) */
355 	unsigned int bdbar_addr;		/* PCI bus address (32bit) */
356 	struct snd_pcm_substream *substream;
357 	unsigned int physbuf;			/* physical address (32bit) */
358         unsigned int size;
359         unsigned int fragsize;
360         unsigned int fragsize1;
361         unsigned int position;
362 	unsigned int pos_shift;
363 	unsigned int last_pos;
364         int frags;
365         int lvi;
366         int lvi_frag;
367 	int civ;
368 	int ack;
369 	int ack_reload;
370 	unsigned int ack_bit;
371 	unsigned int roff_sr;
372 	unsigned int roff_picb;
373 	unsigned int int_sta_mask;		/* interrupt status mask */
374 	unsigned int ali_slot;			/* ALI DMA slot */
375 	struct ac97_pcm *pcm;
376 	int pcm_open_flag;
377 	unsigned int page_attr_changed: 1;
378 	unsigned int suspended: 1;
379 };
380 
381 struct intel8x0 {
382 	unsigned int device_type;
383 
384 	int irq;
385 
386 	void __iomem *addr;
387 	void __iomem *bmaddr;
388 
389 	struct pci_dev *pci;
390 	struct snd_card *card;
391 
392 	int pcm_devs;
393 	struct snd_pcm *pcm[6];
394 	struct ichdev ichd[6];
395 
396 	unsigned multi4: 1,
397 		 multi6: 1,
398 		 multi8 :1,
399 		 dra: 1,
400 		 smp20bit: 1;
401 	unsigned in_ac97_init: 1,
402 		 in_sdin_init: 1;
403 	unsigned in_measurement: 1;	/* during ac97 clock measurement */
404 	unsigned fix_nocache: 1; 	/* workaround for 440MX */
405 	unsigned buggy_irq: 1;		/* workaround for buggy mobos */
406 	unsigned xbox: 1;		/* workaround for Xbox AC'97 detection */
407 	unsigned buggy_semaphore: 1;	/* workaround for buggy codec semaphore */
408 	unsigned inside_vm: 1;		/* enable VM optimization */
409 
410 	int spdif_idx;	/* SPDIF BAR index; *_SPBAR or -1 if use PCMOUT */
411 	unsigned int sdm_saved;	/* SDM reg value */
412 
413 	struct snd_ac97_bus *ac97_bus;
414 	struct snd_ac97 *ac97[3];
415 	unsigned int ac97_sdin[3];
416 	unsigned int max_codecs, ncodecs;
417 	unsigned int *codec_bit;
418 	unsigned int codec_isr_bits;
419 	unsigned int codec_ready_bits;
420 
421 	spinlock_t reg_lock;
422 
423 	u32 bdbars_count;
424 	struct snd_dma_buffer bdbars;
425 	u32 int_sta_reg;		/* interrupt status register */
426 	u32 int_sta_mask;		/* interrupt status mask */
427 };
428 
429 static const struct pci_device_id snd_intel8x0_ids[] = {
430 	{ PCI_VDEVICE(INTEL, 0x2415), DEVICE_INTEL },	/* 82801AA */
431 	{ PCI_VDEVICE(INTEL, 0x2425), DEVICE_INTEL },	/* 82901AB */
432 	{ PCI_VDEVICE(INTEL, 0x2445), DEVICE_INTEL },	/* 82801BA */
433 	{ PCI_VDEVICE(INTEL, 0x2485), DEVICE_INTEL },	/* ICH3 */
434 	{ PCI_VDEVICE(INTEL, 0x24c5), DEVICE_INTEL_ICH4 }, /* ICH4 */
435 	{ PCI_VDEVICE(INTEL, 0x24d5), DEVICE_INTEL_ICH4 }, /* ICH5 */
436 	{ PCI_VDEVICE(INTEL, 0x25a6), DEVICE_INTEL_ICH4 }, /* ESB */
437 	{ PCI_VDEVICE(INTEL, 0x266e), DEVICE_INTEL_ICH4 }, /* ICH6 */
438 	{ PCI_VDEVICE(INTEL, 0x27de), DEVICE_INTEL_ICH4 }, /* ICH7 */
439 	{ PCI_VDEVICE(INTEL, 0x2698), DEVICE_INTEL_ICH4 }, /* ESB2 */
440 	{ PCI_VDEVICE(INTEL, 0x7195), DEVICE_INTEL },	/* 440MX */
441 	{ PCI_VDEVICE(SI, 0x7012), DEVICE_SIS },	/* SI7012 */
442 	{ PCI_VDEVICE(NVIDIA, 0x01b1), DEVICE_NFORCE },	/* NFORCE */
443 	{ PCI_VDEVICE(NVIDIA, 0x003a), DEVICE_NFORCE },	/* MCP04 */
444 	{ PCI_VDEVICE(NVIDIA, 0x006a), DEVICE_NFORCE },	/* NFORCE2 */
445 	{ PCI_VDEVICE(NVIDIA, 0x0059), DEVICE_NFORCE },	/* CK804 */
446 	{ PCI_VDEVICE(NVIDIA, 0x008a), DEVICE_NFORCE },	/* CK8 */
447 	{ PCI_VDEVICE(NVIDIA, 0x00da), DEVICE_NFORCE },	/* NFORCE3 */
448 	{ PCI_VDEVICE(NVIDIA, 0x00ea), DEVICE_NFORCE },	/* CK8S */
449 	{ PCI_VDEVICE(NVIDIA, 0x026b), DEVICE_NFORCE },	/* MCP51 */
450 	{ PCI_VDEVICE(AMD, 0x746d), DEVICE_INTEL },	/* AMD8111 */
451 	{ PCI_VDEVICE(AMD, 0x7445), DEVICE_INTEL },	/* AMD768 */
452 	{ PCI_VDEVICE(AL, 0x5455), DEVICE_ALI },   /* Ali5455 */
453 	{ 0, }
454 };
455 
456 MODULE_DEVICE_TABLE(pci, snd_intel8x0_ids);
457 
458 /*
459  *  Lowlevel I/O - busmaster
460  */
461 
462 static inline u8 igetbyte(struct intel8x0 *chip, u32 offset)
463 {
464 	return ioread8(chip->bmaddr + offset);
465 }
466 
467 static inline u16 igetword(struct intel8x0 *chip, u32 offset)
468 {
469 	return ioread16(chip->bmaddr + offset);
470 }
471 
472 static inline u32 igetdword(struct intel8x0 *chip, u32 offset)
473 {
474 	return ioread32(chip->bmaddr + offset);
475 }
476 
477 static inline void iputbyte(struct intel8x0 *chip, u32 offset, u8 val)
478 {
479 	iowrite8(val, chip->bmaddr + offset);
480 }
481 
482 static inline void iputword(struct intel8x0 *chip, u32 offset, u16 val)
483 {
484 	iowrite16(val, chip->bmaddr + offset);
485 }
486 
487 static inline void iputdword(struct intel8x0 *chip, u32 offset, u32 val)
488 {
489 	iowrite32(val, chip->bmaddr + offset);
490 }
491 
492 /*
493  *  Lowlevel I/O - AC'97 registers
494  */
495 
496 static inline u16 iagetword(struct intel8x0 *chip, u32 offset)
497 {
498 	return ioread16(chip->addr + offset);
499 }
500 
501 static inline void iaputword(struct intel8x0 *chip, u32 offset, u16 val)
502 {
503 	iowrite16(val, chip->addr + offset);
504 }
505 
506 /*
507  *  Basic I/O
508  */
509 
510 /*
511  * access to AC97 codec via normal i/o (for ICH and SIS7012)
512  */
513 
514 static int snd_intel8x0_codec_semaphore(struct intel8x0 *chip, unsigned int codec)
515 {
516 	int time;
517 
518 	if (codec > 2)
519 		return -EIO;
520 	if (chip->in_sdin_init) {
521 		/* we don't know the ready bit assignment at the moment */
522 		/* so we check any */
523 		codec = chip->codec_isr_bits;
524 	} else {
525 		codec = chip->codec_bit[chip->ac97_sdin[codec]];
526 	}
527 
528 	/* codec ready ? */
529 	if ((igetdword(chip, ICHREG(GLOB_STA)) & codec) == 0)
530 		return -EIO;
531 
532 	if (chip->buggy_semaphore)
533 		return 0; /* just ignore ... */
534 
535 	/* Anyone holding a semaphore for 1 msec should be shot... */
536 	time = 100;
537       	do {
538       		if (!(igetbyte(chip, ICHREG(ACC_SEMA)) & ICH_CAS))
539       			return 0;
540 		udelay(10);
541 	} while (time--);
542 
543 	/* access to some forbidden (non existent) ac97 registers will not
544 	 * reset the semaphore. So even if you don't get the semaphore, still
545 	 * continue the access. We don't need the semaphore anyway. */
546 	dev_err(chip->card->dev,
547 		"codec_semaphore: semaphore is not ready [0x%x][0x%x]\n",
548 			igetbyte(chip, ICHREG(ACC_SEMA)), igetdword(chip, ICHREG(GLOB_STA)));
549 	iagetword(chip, 0);	/* clear semaphore flag */
550 	/* I don't care about the semaphore */
551 	return -EBUSY;
552 }
553 
554 static void snd_intel8x0_codec_write(struct snd_ac97 *ac97,
555 				     unsigned short reg,
556 				     unsigned short val)
557 {
558 	struct intel8x0 *chip = ac97->private_data;
559 
560 	if (snd_intel8x0_codec_semaphore(chip, ac97->num) < 0) {
561 		if (! chip->in_ac97_init)
562 			dev_err(chip->card->dev,
563 				"codec_write %d: semaphore is not ready for register 0x%x\n",
564 				ac97->num, reg);
565 	}
566 	iaputword(chip, reg + ac97->num * 0x80, val);
567 }
568 
569 static unsigned short snd_intel8x0_codec_read(struct snd_ac97 *ac97,
570 					      unsigned short reg)
571 {
572 	struct intel8x0 *chip = ac97->private_data;
573 	unsigned short res;
574 	unsigned int tmp;
575 
576 	if (snd_intel8x0_codec_semaphore(chip, ac97->num) < 0) {
577 		if (! chip->in_ac97_init)
578 			dev_err(chip->card->dev,
579 				"codec_read %d: semaphore is not ready for register 0x%x\n",
580 				ac97->num, reg);
581 		res = 0xffff;
582 	} else {
583 		res = iagetword(chip, reg + ac97->num * 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 			if (! chip->in_ac97_init)
589 				dev_err(chip->card->dev,
590 					"codec_read %d: read timeout for register 0x%x\n",
591 					ac97->num, reg);
592 			res = 0xffff;
593 		}
594 	}
595 	return res;
596 }
597 
598 static void snd_intel8x0_codec_read_test(struct intel8x0 *chip,
599 					 unsigned int codec)
600 {
601 	unsigned int tmp;
602 
603 	if (snd_intel8x0_codec_semaphore(chip, codec) >= 0) {
604 		iagetword(chip, codec * 0x80);
605 		if ((tmp = igetdword(chip, ICHREG(GLOB_STA))) & ICH_RCS) {
606 			/* reset RCS and preserve other R/WC bits */
607 			iputdword(chip, ICHREG(GLOB_STA), tmp &
608 				  ~(chip->codec_ready_bits | ICH_GSCI));
609 		}
610 	}
611 }
612 
613 /*
614  * access to AC97 for Ali5455
615  */
616 static int snd_intel8x0_ali_codec_ready(struct intel8x0 *chip, int mask)
617 {
618 	int count = 0;
619 	for (count = 0; count < 0x7f; count++) {
620 		int val = igetbyte(chip, ICHREG(ALI_CSPSR));
621 		if (val & mask)
622 			return 0;
623 	}
624 	if (! chip->in_ac97_init)
625 		dev_warn(chip->card->dev, "AC97 codec ready timeout.\n");
626 	return -EBUSY;
627 }
628 
629 static int snd_intel8x0_ali_codec_semaphore(struct intel8x0 *chip)
630 {
631 	int time = 100;
632 	if (chip->buggy_semaphore)
633 		return 0; /* just ignore ... */
634 	while (--time && (igetdword(chip, ICHREG(ALI_CAS)) & ALI_CAS_SEM_BUSY))
635 		udelay(1);
636 	if (! time && ! chip->in_ac97_init)
637 		dev_warn(chip->card->dev, "ali_codec_semaphore timeout\n");
638 	return snd_intel8x0_ali_codec_ready(chip, ALI_CSPSR_CODEC_READY);
639 }
640 
641 static unsigned short snd_intel8x0_ali_codec_read(struct snd_ac97 *ac97, unsigned short reg)
642 {
643 	struct intel8x0 *chip = ac97->private_data;
644 	unsigned short data = 0xffff;
645 
646 	if (snd_intel8x0_ali_codec_semaphore(chip))
647 		goto __err;
648 	reg |= ALI_CPR_ADDR_READ;
649 	if (ac97->num)
650 		reg |= ALI_CPR_ADDR_SECONDARY;
651 	iputword(chip, ICHREG(ALI_CPR_ADDR), reg);
652 	if (snd_intel8x0_ali_codec_ready(chip, ALI_CSPSR_READ_OK))
653 		goto __err;
654 	data = igetword(chip, ICHREG(ALI_SPR));
655  __err:
656 	return data;
657 }
658 
659 static void snd_intel8x0_ali_codec_write(struct snd_ac97 *ac97, unsigned short reg,
660 					 unsigned short val)
661 {
662 	struct intel8x0 *chip = ac97->private_data;
663 
664 	if (snd_intel8x0_ali_codec_semaphore(chip))
665 		return;
666 	iputword(chip, ICHREG(ALI_CPR), val);
667 	if (ac97->num)
668 		reg |= ALI_CPR_ADDR_SECONDARY;
669 	iputword(chip, ICHREG(ALI_CPR_ADDR), reg);
670 	snd_intel8x0_ali_codec_ready(chip, ALI_CSPSR_WRITE_OK);
671 }
672 
673 
674 /*
675  * DMA I/O
676  */
677 static void snd_intel8x0_setup_periods(struct intel8x0 *chip, struct ichdev *ichdev)
678 {
679 	int idx;
680 	u32 *bdbar = ichdev->bdbar;
681 	unsigned long port = ichdev->reg_offset;
682 
683 	iputdword(chip, port + ICH_REG_OFF_BDBAR, ichdev->bdbar_addr);
684 	if (ichdev->size == ichdev->fragsize) {
685 		ichdev->ack_reload = ichdev->ack = 2;
686 		ichdev->fragsize1 = ichdev->fragsize >> 1;
687 		for (idx = 0; idx < (ICH_REG_LVI_MASK + 1) * 2; idx += 4) {
688 			bdbar[idx + 0] = cpu_to_le32(ichdev->physbuf);
689 			bdbar[idx + 1] = cpu_to_le32(0x80000000 | /* interrupt on completion */
690 						     ichdev->fragsize1 >> ichdev->pos_shift);
691 			bdbar[idx + 2] = cpu_to_le32(ichdev->physbuf + (ichdev->size >> 1));
692 			bdbar[idx + 3] = cpu_to_le32(0x80000000 | /* interrupt on completion */
693 						     ichdev->fragsize1 >> ichdev->pos_shift);
694 		}
695 		ichdev->frags = 2;
696 	} else {
697 		ichdev->ack_reload = ichdev->ack = 1;
698 		ichdev->fragsize1 = ichdev->fragsize;
699 		for (idx = 0; idx < (ICH_REG_LVI_MASK + 1) * 2; idx += 2) {
700 			bdbar[idx + 0] = cpu_to_le32(ichdev->physbuf +
701 						     (((idx >> 1) * ichdev->fragsize) %
702 						      ichdev->size));
703 			bdbar[idx + 1] = cpu_to_le32(0x80000000 | /* interrupt on completion */
704 						     ichdev->fragsize >> ichdev->pos_shift);
705 #if 0
706 			dev_dbg(chip->card->dev, "bdbar[%i] = 0x%x [0x%x]\n",
707 			       idx + 0, bdbar[idx + 0], bdbar[idx + 1]);
708 #endif
709 		}
710 		ichdev->frags = ichdev->size / ichdev->fragsize;
711 	}
712 	iputbyte(chip, port + ICH_REG_OFF_LVI, ichdev->lvi = ICH_REG_LVI_MASK);
713 	ichdev->civ = 0;
714 	iputbyte(chip, port + ICH_REG_OFF_CIV, 0);
715 	ichdev->lvi_frag = ICH_REG_LVI_MASK % ichdev->frags;
716 	ichdev->position = 0;
717 #if 0
718 	dev_dbg(chip->card->dev,
719 		"lvi_frag = %i, frags = %i, period_size = 0x%x, period_size1 = 0x%x\n",
720 	       ichdev->lvi_frag, ichdev->frags, ichdev->fragsize,
721 	       ichdev->fragsize1);
722 #endif
723 	/* clear interrupts */
724 	iputbyte(chip, port + ichdev->roff_sr, ICH_FIFOE | ICH_BCIS | ICH_LVBCI);
725 }
726 
727 #ifdef __i386__
728 /*
729  * Intel 82443MX running a 100MHz processor system bus has a hardware bug,
730  * which aborts PCI busmaster for audio transfer.  A workaround is to set
731  * the pages as non-cached.  For details, see the errata in
732  *	http://download.intel.com/design/chipsets/specupdt/24505108.pdf
733  */
734 static void fill_nocache(void *buf, int size, int nocache)
735 {
736 	size = (size + PAGE_SIZE - 1) >> PAGE_SHIFT;
737 	if (nocache)
738 		set_pages_uc(virt_to_page(buf), size);
739 	else
740 		set_pages_wb(virt_to_page(buf), size);
741 }
742 #else
743 #define fill_nocache(buf, size, nocache) do { ; } while (0)
744 #endif
745 
746 /*
747  *  Interrupt handler
748  */
749 
750 static inline void snd_intel8x0_update(struct intel8x0 *chip, struct ichdev *ichdev)
751 {
752 	unsigned long port = ichdev->reg_offset;
753 	unsigned long flags;
754 	int status, civ, i, step;
755 	int ack = 0;
756 
757 	spin_lock_irqsave(&chip->reg_lock, flags);
758 	status = igetbyte(chip, port + ichdev->roff_sr);
759 	civ = igetbyte(chip, port + ICH_REG_OFF_CIV);
760 	if (!(status & ICH_BCIS)) {
761 		step = 0;
762 	} else if (civ == ichdev->civ) {
763 		// snd_printd("civ same %d\n", civ);
764 		step = 1;
765 		ichdev->civ++;
766 		ichdev->civ &= ICH_REG_LVI_MASK;
767 	} else {
768 		step = civ - ichdev->civ;
769 		if (step < 0)
770 			step += ICH_REG_LVI_MASK + 1;
771 		// if (step != 1)
772 		//	snd_printd("step = %d, %d -> %d\n", step, ichdev->civ, civ);
773 		ichdev->civ = civ;
774 	}
775 
776 	ichdev->position += step * ichdev->fragsize1;
777 	if (! chip->in_measurement)
778 		ichdev->position %= ichdev->size;
779 	ichdev->lvi += step;
780 	ichdev->lvi &= ICH_REG_LVI_MASK;
781 	iputbyte(chip, port + ICH_REG_OFF_LVI, ichdev->lvi);
782 	for (i = 0; i < step; i++) {
783 		ichdev->lvi_frag++;
784 		ichdev->lvi_frag %= ichdev->frags;
785 		ichdev->bdbar[ichdev->lvi * 2] = cpu_to_le32(ichdev->physbuf + ichdev->lvi_frag * ichdev->fragsize1);
786 #if 0
787 	dev_dbg(chip->card->dev,
788 		"new: bdbar[%i] = 0x%x [0x%x], prefetch = %i, all = 0x%x, 0x%x\n",
789 	       ichdev->lvi * 2, ichdev->bdbar[ichdev->lvi * 2],
790 	       ichdev->bdbar[ichdev->lvi * 2 + 1], inb(ICH_REG_OFF_PIV + port),
791 	       inl(port + 4), inb(port + ICH_REG_OFF_CR));
792 #endif
793 		if (--ichdev->ack == 0) {
794 			ichdev->ack = ichdev->ack_reload;
795 			ack = 1;
796 		}
797 	}
798 	spin_unlock_irqrestore(&chip->reg_lock, flags);
799 	if (ack && ichdev->substream) {
800 		snd_pcm_period_elapsed(ichdev->substream);
801 	}
802 	iputbyte(chip, port + ichdev->roff_sr,
803 		 status & (ICH_FIFOE | ICH_BCIS | ICH_LVBCI));
804 }
805 
806 static irqreturn_t snd_intel8x0_interrupt(int irq, void *dev_id)
807 {
808 	struct intel8x0 *chip = dev_id;
809 	struct ichdev *ichdev;
810 	unsigned int status;
811 	unsigned int i;
812 
813 	status = igetdword(chip, chip->int_sta_reg);
814 	if (status == 0xffffffff)	/* we are not yet resumed */
815 		return IRQ_NONE;
816 
817 	if ((status & chip->int_sta_mask) == 0) {
818 		if (status) {
819 			/* ack */
820 			iputdword(chip, chip->int_sta_reg, status);
821 			if (! chip->buggy_irq)
822 				status = 0;
823 		}
824 		return IRQ_RETVAL(status);
825 	}
826 
827 	for (i = 0; i < chip->bdbars_count; i++) {
828 		ichdev = &chip->ichd[i];
829 		if (status & ichdev->int_sta_mask)
830 			snd_intel8x0_update(chip, ichdev);
831 	}
832 
833 	/* ack them */
834 	iputdword(chip, chip->int_sta_reg, status & chip->int_sta_mask);
835 
836 	return IRQ_HANDLED;
837 }
838 
839 /*
840  *  PCM part
841  */
842 
843 static int snd_intel8x0_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
844 {
845 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
846 	struct ichdev *ichdev = get_ichdev(substream);
847 	unsigned char val = 0;
848 	unsigned long port = ichdev->reg_offset;
849 
850 	switch (cmd) {
851 	case SNDRV_PCM_TRIGGER_RESUME:
852 		ichdev->suspended = 0;
853 		/* fallthru */
854 	case SNDRV_PCM_TRIGGER_START:
855 	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
856 		val = ICH_IOCE | ICH_STARTBM;
857 		ichdev->last_pos = ichdev->position;
858 		break;
859 	case SNDRV_PCM_TRIGGER_SUSPEND:
860 		ichdev->suspended = 1;
861 		/* fallthru */
862 	case SNDRV_PCM_TRIGGER_STOP:
863 		val = 0;
864 		break;
865 	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
866 		val = ICH_IOCE;
867 		break;
868 	default:
869 		return -EINVAL;
870 	}
871 	iputbyte(chip, port + ICH_REG_OFF_CR, val);
872 	if (cmd == SNDRV_PCM_TRIGGER_STOP) {
873 		/* wait until DMA stopped */
874 		while (!(igetbyte(chip, port + ichdev->roff_sr) & ICH_DCH)) ;
875 		/* reset whole DMA things */
876 		iputbyte(chip, port + ICH_REG_OFF_CR, ICH_RESETREGS);
877 	}
878 	return 0;
879 }
880 
881 static int snd_intel8x0_ali_trigger(struct snd_pcm_substream *substream, int cmd)
882 {
883 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
884 	struct ichdev *ichdev = get_ichdev(substream);
885 	unsigned long port = ichdev->reg_offset;
886 	static int fiforeg[] = {
887 		ICHREG(ALI_FIFOCR1), ICHREG(ALI_FIFOCR2), ICHREG(ALI_FIFOCR3)
888 	};
889 	unsigned int val, fifo;
890 
891 	val = igetdword(chip, ICHREG(ALI_DMACR));
892 	switch (cmd) {
893 	case SNDRV_PCM_TRIGGER_RESUME:
894 		ichdev->suspended = 0;
895 		/* fallthru */
896 	case SNDRV_PCM_TRIGGER_START:
897 	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
898 		if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
899 			/* clear FIFO for synchronization of channels */
900 			fifo = igetdword(chip, fiforeg[ichdev->ali_slot / 4]);
901 			fifo &= ~(0xff << (ichdev->ali_slot % 4));
902 			fifo |= 0x83 << (ichdev->ali_slot % 4);
903 			iputdword(chip, fiforeg[ichdev->ali_slot / 4], fifo);
904 		}
905 		iputbyte(chip, port + ICH_REG_OFF_CR, ICH_IOCE);
906 		val &= ~(1 << (ichdev->ali_slot + 16)); /* clear PAUSE flag */
907 		/* start DMA */
908 		iputdword(chip, ICHREG(ALI_DMACR), val | (1 << ichdev->ali_slot));
909 		break;
910 	case SNDRV_PCM_TRIGGER_SUSPEND:
911 		ichdev->suspended = 1;
912 		/* fallthru */
913 	case SNDRV_PCM_TRIGGER_STOP:
914 	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
915 		/* pause */
916 		iputdword(chip, ICHREG(ALI_DMACR), val | (1 << (ichdev->ali_slot + 16)));
917 		iputbyte(chip, port + ICH_REG_OFF_CR, 0);
918 		while (igetbyte(chip, port + ICH_REG_OFF_CR))
919 			;
920 		if (cmd == SNDRV_PCM_TRIGGER_PAUSE_PUSH)
921 			break;
922 		/* reset whole DMA things */
923 		iputbyte(chip, port + ICH_REG_OFF_CR, ICH_RESETREGS);
924 		/* clear interrupts */
925 		iputbyte(chip, port + ICH_REG_OFF_SR,
926 			 igetbyte(chip, port + ICH_REG_OFF_SR) | 0x1e);
927 		iputdword(chip, ICHREG(ALI_INTERRUPTSR),
928 			  igetdword(chip, ICHREG(ALI_INTERRUPTSR)) & ichdev->int_sta_mask);
929 		break;
930 	default:
931 		return -EINVAL;
932 	}
933 	return 0;
934 }
935 
936 static int snd_intel8x0_hw_params(struct snd_pcm_substream *substream,
937 				  struct snd_pcm_hw_params *hw_params)
938 {
939 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
940 	struct ichdev *ichdev = get_ichdev(substream);
941 	struct snd_pcm_runtime *runtime = substream->runtime;
942 	int dbl = params_rate(hw_params) > 48000;
943 	int err;
944 
945 	if (chip->fix_nocache && ichdev->page_attr_changed) {
946 		fill_nocache(runtime->dma_area, runtime->dma_bytes, 0); /* clear */
947 		ichdev->page_attr_changed = 0;
948 	}
949 	err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
950 	if (err < 0)
951 		return err;
952 	if (chip->fix_nocache) {
953 		if (runtime->dma_area && ! ichdev->page_attr_changed) {
954 			fill_nocache(runtime->dma_area, runtime->dma_bytes, 1);
955 			ichdev->page_attr_changed = 1;
956 		}
957 	}
958 	if (ichdev->pcm_open_flag) {
959 		snd_ac97_pcm_close(ichdev->pcm);
960 		ichdev->pcm_open_flag = 0;
961 	}
962 	err = snd_ac97_pcm_open(ichdev->pcm, params_rate(hw_params),
963 				params_channels(hw_params),
964 				ichdev->pcm->r[dbl].slots);
965 	if (err >= 0) {
966 		ichdev->pcm_open_flag = 1;
967 		/* Force SPDIF setting */
968 		if (ichdev->ichd == ICHD_PCMOUT && chip->spdif_idx < 0)
969 			snd_ac97_set_rate(ichdev->pcm->r[0].codec[0], AC97_SPDIF,
970 					  params_rate(hw_params));
971 	}
972 	return err;
973 }
974 
975 static int snd_intel8x0_hw_free(struct snd_pcm_substream *substream)
976 {
977 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
978 	struct ichdev *ichdev = get_ichdev(substream);
979 
980 	if (ichdev->pcm_open_flag) {
981 		snd_ac97_pcm_close(ichdev->pcm);
982 		ichdev->pcm_open_flag = 0;
983 	}
984 	if (chip->fix_nocache && ichdev->page_attr_changed) {
985 		fill_nocache(substream->runtime->dma_area, substream->runtime->dma_bytes, 0);
986 		ichdev->page_attr_changed = 0;
987 	}
988 	return snd_pcm_lib_free_pages(substream);
989 }
990 
991 static void snd_intel8x0_setup_pcm_out(struct intel8x0 *chip,
992 				       struct snd_pcm_runtime *runtime)
993 {
994 	unsigned int cnt;
995 	int dbl = runtime->rate > 48000;
996 
997 	spin_lock_irq(&chip->reg_lock);
998 	switch (chip->device_type) {
999 	case DEVICE_ALI:
1000 		cnt = igetdword(chip, ICHREG(ALI_SCR));
1001 		cnt &= ~ICH_ALI_SC_PCM_246_MASK;
1002 		if (runtime->channels == 4 || dbl)
1003 			cnt |= ICH_ALI_SC_PCM_4;
1004 		else if (runtime->channels == 6)
1005 			cnt |= ICH_ALI_SC_PCM_6;
1006 		iputdword(chip, ICHREG(ALI_SCR), cnt);
1007 		break;
1008 	case DEVICE_SIS:
1009 		cnt = igetdword(chip, ICHREG(GLOB_CNT));
1010 		cnt &= ~ICH_SIS_PCM_246_MASK;
1011 		if (runtime->channels == 4 || dbl)
1012 			cnt |= ICH_SIS_PCM_4;
1013 		else if (runtime->channels == 6)
1014 			cnt |= ICH_SIS_PCM_6;
1015 		iputdword(chip, ICHREG(GLOB_CNT), cnt);
1016 		break;
1017 	default:
1018 		cnt = igetdword(chip, ICHREG(GLOB_CNT));
1019 		cnt &= ~(ICH_PCM_246_MASK | ICH_PCM_20BIT);
1020 		if (runtime->channels == 4 || dbl)
1021 			cnt |= ICH_PCM_4;
1022 		else if (runtime->channels == 6)
1023 			cnt |= ICH_PCM_6;
1024 		else if (runtime->channels == 8)
1025 			cnt |= ICH_PCM_8;
1026 		if (chip->device_type == DEVICE_NFORCE) {
1027 			/* reset to 2ch once to keep the 6 channel data in alignment,
1028 			 * to start from Front Left always
1029 			 */
1030 			if (cnt & ICH_PCM_246_MASK) {
1031 				iputdword(chip, ICHREG(GLOB_CNT), cnt & ~ICH_PCM_246_MASK);
1032 				spin_unlock_irq(&chip->reg_lock);
1033 				msleep(50); /* grrr... */
1034 				spin_lock_irq(&chip->reg_lock);
1035 			}
1036 		} else if (chip->device_type == DEVICE_INTEL_ICH4) {
1037 			if (runtime->sample_bits > 16)
1038 				cnt |= ICH_PCM_20BIT;
1039 		}
1040 		iputdword(chip, ICHREG(GLOB_CNT), cnt);
1041 		break;
1042 	}
1043 	spin_unlock_irq(&chip->reg_lock);
1044 }
1045 
1046 static int snd_intel8x0_pcm_prepare(struct snd_pcm_substream *substream)
1047 {
1048 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1049 	struct snd_pcm_runtime *runtime = substream->runtime;
1050 	struct ichdev *ichdev = get_ichdev(substream);
1051 
1052 	ichdev->physbuf = runtime->dma_addr;
1053 	ichdev->size = snd_pcm_lib_buffer_bytes(substream);
1054 	ichdev->fragsize = snd_pcm_lib_period_bytes(substream);
1055 	if (ichdev->ichd == ICHD_PCMOUT) {
1056 		snd_intel8x0_setup_pcm_out(chip, runtime);
1057 		if (chip->device_type == DEVICE_INTEL_ICH4)
1058 			ichdev->pos_shift = (runtime->sample_bits > 16) ? 2 : 1;
1059 	}
1060 	snd_intel8x0_setup_periods(chip, ichdev);
1061 	return 0;
1062 }
1063 
1064 static snd_pcm_uframes_t snd_intel8x0_pcm_pointer(struct snd_pcm_substream *substream)
1065 {
1066 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1067 	struct ichdev *ichdev = get_ichdev(substream);
1068 	size_t ptr1, ptr;
1069 	int civ, timeout = 10;
1070 	unsigned int position;
1071 
1072 	spin_lock(&chip->reg_lock);
1073 	do {
1074 		civ = igetbyte(chip, ichdev->reg_offset + ICH_REG_OFF_CIV);
1075 		ptr1 = igetword(chip, ichdev->reg_offset + ichdev->roff_picb);
1076 		position = ichdev->position;
1077 		if (ptr1 == 0) {
1078 			udelay(10);
1079 			continue;
1080 		}
1081 		if (civ != igetbyte(chip, ichdev->reg_offset + ICH_REG_OFF_CIV))
1082 			continue;
1083 
1084 		/* IO read operation is very expensive inside virtual machine
1085 		 * as it is emulated. The probability that subsequent PICB read
1086 		 * will return different result is high enough to loop till
1087 		 * timeout here.
1088 		 * Same CIV is strict enough condition to be sure that PICB
1089 		 * is valid inside VM on emulated card. */
1090 		if (chip->inside_vm)
1091 			break;
1092 		if (ptr1 == igetword(chip, ichdev->reg_offset + ichdev->roff_picb))
1093 			break;
1094 	} while (timeout--);
1095 	ptr = ichdev->last_pos;
1096 	if (ptr1 != 0) {
1097 		ptr1 <<= ichdev->pos_shift;
1098 		ptr = ichdev->fragsize1 - ptr1;
1099 		ptr += position;
1100 		if (ptr < ichdev->last_pos) {
1101 			unsigned int pos_base, last_base;
1102 			pos_base = position / ichdev->fragsize1;
1103 			last_base = ichdev->last_pos / ichdev->fragsize1;
1104 			/* another sanity check; ptr1 can go back to full
1105 			 * before the base position is updated
1106 			 */
1107 			if (pos_base == last_base)
1108 				ptr = ichdev->last_pos;
1109 		}
1110 	}
1111 	ichdev->last_pos = ptr;
1112 	spin_unlock(&chip->reg_lock);
1113 	if (ptr >= ichdev->size)
1114 		return 0;
1115 	return bytes_to_frames(substream->runtime, ptr);
1116 }
1117 
1118 static const struct snd_pcm_hardware snd_intel8x0_stream =
1119 {
1120 	.info =			(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1121 				 SNDRV_PCM_INFO_BLOCK_TRANSFER |
1122 				 SNDRV_PCM_INFO_MMAP_VALID |
1123 				 SNDRV_PCM_INFO_PAUSE |
1124 				 SNDRV_PCM_INFO_RESUME),
1125 	.formats =		SNDRV_PCM_FMTBIT_S16_LE,
1126 	.rates =		SNDRV_PCM_RATE_48000,
1127 	.rate_min =		48000,
1128 	.rate_max =		48000,
1129 	.channels_min =		2,
1130 	.channels_max =		2,
1131 	.buffer_bytes_max =	128 * 1024,
1132 	.period_bytes_min =	32,
1133 	.period_bytes_max =	128 * 1024,
1134 	.periods_min =		1,
1135 	.periods_max =		1024,
1136 	.fifo_size =		0,
1137 };
1138 
1139 static const unsigned int channels4[] = {
1140 	2, 4,
1141 };
1142 
1143 static const struct snd_pcm_hw_constraint_list hw_constraints_channels4 = {
1144 	.count = ARRAY_SIZE(channels4),
1145 	.list = channels4,
1146 	.mask = 0,
1147 };
1148 
1149 static const unsigned int channels6[] = {
1150 	2, 4, 6,
1151 };
1152 
1153 static const struct snd_pcm_hw_constraint_list hw_constraints_channels6 = {
1154 	.count = ARRAY_SIZE(channels6),
1155 	.list = channels6,
1156 	.mask = 0,
1157 };
1158 
1159 static const unsigned int channels8[] = {
1160 	2, 4, 6, 8,
1161 };
1162 
1163 static const struct snd_pcm_hw_constraint_list hw_constraints_channels8 = {
1164 	.count = ARRAY_SIZE(channels8),
1165 	.list = channels8,
1166 	.mask = 0,
1167 };
1168 
1169 static int snd_intel8x0_pcm_open(struct snd_pcm_substream *substream, struct ichdev *ichdev)
1170 {
1171 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1172 	struct snd_pcm_runtime *runtime = substream->runtime;
1173 	int err;
1174 
1175 	ichdev->substream = substream;
1176 	runtime->hw = snd_intel8x0_stream;
1177 	runtime->hw.rates = ichdev->pcm->rates;
1178 	snd_pcm_limit_hw_rates(runtime);
1179 	if (chip->device_type == DEVICE_SIS) {
1180 		runtime->hw.buffer_bytes_max = 64*1024;
1181 		runtime->hw.period_bytes_max = 64*1024;
1182 	}
1183 	if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
1184 		return err;
1185 	runtime->private_data = ichdev;
1186 	return 0;
1187 }
1188 
1189 static int snd_intel8x0_playback_open(struct snd_pcm_substream *substream)
1190 {
1191 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1192 	struct snd_pcm_runtime *runtime = substream->runtime;
1193 	int err;
1194 
1195 	err = snd_intel8x0_pcm_open(substream, &chip->ichd[ICHD_PCMOUT]);
1196 	if (err < 0)
1197 		return err;
1198 
1199 	if (chip->multi8) {
1200 		runtime->hw.channels_max = 8;
1201 		snd_pcm_hw_constraint_list(runtime, 0,
1202 						SNDRV_PCM_HW_PARAM_CHANNELS,
1203 						&hw_constraints_channels8);
1204 	} else if (chip->multi6) {
1205 		runtime->hw.channels_max = 6;
1206 		snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
1207 					   &hw_constraints_channels6);
1208 	} else if (chip->multi4) {
1209 		runtime->hw.channels_max = 4;
1210 		snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
1211 					   &hw_constraints_channels4);
1212 	}
1213 	if (chip->dra) {
1214 		snd_ac97_pcm_double_rate_rules(runtime);
1215 	}
1216 	if (chip->smp20bit) {
1217 		runtime->hw.formats |= SNDRV_PCM_FMTBIT_S32_LE;
1218 		snd_pcm_hw_constraint_msbits(runtime, 0, 32, 20);
1219 	}
1220 	return 0;
1221 }
1222 
1223 static int snd_intel8x0_playback_close(struct snd_pcm_substream *substream)
1224 {
1225 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1226 
1227 	chip->ichd[ICHD_PCMOUT].substream = NULL;
1228 	return 0;
1229 }
1230 
1231 static int snd_intel8x0_capture_open(struct snd_pcm_substream *substream)
1232 {
1233 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1234 
1235 	return snd_intel8x0_pcm_open(substream, &chip->ichd[ICHD_PCMIN]);
1236 }
1237 
1238 static int snd_intel8x0_capture_close(struct snd_pcm_substream *substream)
1239 {
1240 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1241 
1242 	chip->ichd[ICHD_PCMIN].substream = NULL;
1243 	return 0;
1244 }
1245 
1246 static int snd_intel8x0_mic_open(struct snd_pcm_substream *substream)
1247 {
1248 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1249 
1250 	return snd_intel8x0_pcm_open(substream, &chip->ichd[ICHD_MIC]);
1251 }
1252 
1253 static int snd_intel8x0_mic_close(struct snd_pcm_substream *substream)
1254 {
1255 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1256 
1257 	chip->ichd[ICHD_MIC].substream = NULL;
1258 	return 0;
1259 }
1260 
1261 static int snd_intel8x0_mic2_open(struct snd_pcm_substream *substream)
1262 {
1263 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1264 
1265 	return snd_intel8x0_pcm_open(substream, &chip->ichd[ICHD_MIC2]);
1266 }
1267 
1268 static int snd_intel8x0_mic2_close(struct snd_pcm_substream *substream)
1269 {
1270 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1271 
1272 	chip->ichd[ICHD_MIC2].substream = NULL;
1273 	return 0;
1274 }
1275 
1276 static int snd_intel8x0_capture2_open(struct snd_pcm_substream *substream)
1277 {
1278 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1279 
1280 	return snd_intel8x0_pcm_open(substream, &chip->ichd[ICHD_PCM2IN]);
1281 }
1282 
1283 static int snd_intel8x0_capture2_close(struct snd_pcm_substream *substream)
1284 {
1285 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1286 
1287 	chip->ichd[ICHD_PCM2IN].substream = NULL;
1288 	return 0;
1289 }
1290 
1291 static int snd_intel8x0_spdif_open(struct snd_pcm_substream *substream)
1292 {
1293 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1294 	int idx = chip->device_type == DEVICE_NFORCE ? NVD_SPBAR : ICHD_SPBAR;
1295 
1296 	return snd_intel8x0_pcm_open(substream, &chip->ichd[idx]);
1297 }
1298 
1299 static int snd_intel8x0_spdif_close(struct snd_pcm_substream *substream)
1300 {
1301 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1302 	int idx = chip->device_type == DEVICE_NFORCE ? NVD_SPBAR : ICHD_SPBAR;
1303 
1304 	chip->ichd[idx].substream = NULL;
1305 	return 0;
1306 }
1307 
1308 static int snd_intel8x0_ali_ac97spdifout_open(struct snd_pcm_substream *substream)
1309 {
1310 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1311 	unsigned int val;
1312 
1313 	spin_lock_irq(&chip->reg_lock);
1314 	val = igetdword(chip, ICHREG(ALI_INTERFACECR));
1315 	val |= ICH_ALI_IF_AC97SP;
1316 	iputdword(chip, ICHREG(ALI_INTERFACECR), val);
1317 	/* also needs to set ALI_SC_CODEC_SPDF correctly */
1318 	spin_unlock_irq(&chip->reg_lock);
1319 
1320 	return snd_intel8x0_pcm_open(substream, &chip->ichd[ALID_AC97SPDIFOUT]);
1321 }
1322 
1323 static int snd_intel8x0_ali_ac97spdifout_close(struct snd_pcm_substream *substream)
1324 {
1325 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1326 	unsigned int val;
1327 
1328 	chip->ichd[ALID_AC97SPDIFOUT].substream = NULL;
1329 	spin_lock_irq(&chip->reg_lock);
1330 	val = igetdword(chip, ICHREG(ALI_INTERFACECR));
1331 	val &= ~ICH_ALI_IF_AC97SP;
1332 	iputdword(chip, ICHREG(ALI_INTERFACECR), val);
1333 	spin_unlock_irq(&chip->reg_lock);
1334 
1335 	return 0;
1336 }
1337 
1338 #if 0 // NYI
1339 static int snd_intel8x0_ali_spdifin_open(struct snd_pcm_substream *substream)
1340 {
1341 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1342 
1343 	return snd_intel8x0_pcm_open(substream, &chip->ichd[ALID_SPDIFIN]);
1344 }
1345 
1346 static int snd_intel8x0_ali_spdifin_close(struct snd_pcm_substream *substream)
1347 {
1348 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1349 
1350 	chip->ichd[ALID_SPDIFIN].substream = NULL;
1351 	return 0;
1352 }
1353 
1354 static int snd_intel8x0_ali_spdifout_open(struct snd_pcm_substream *substream)
1355 {
1356 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1357 
1358 	return snd_intel8x0_pcm_open(substream, &chip->ichd[ALID_SPDIFOUT]);
1359 }
1360 
1361 static int snd_intel8x0_ali_spdifout_close(struct snd_pcm_substream *substream)
1362 {
1363 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1364 
1365 	chip->ichd[ALID_SPDIFOUT].substream = NULL;
1366 	return 0;
1367 }
1368 #endif
1369 
1370 static const struct snd_pcm_ops snd_intel8x0_playback_ops = {
1371 	.open =		snd_intel8x0_playback_open,
1372 	.close =	snd_intel8x0_playback_close,
1373 	.ioctl =	snd_pcm_lib_ioctl,
1374 	.hw_params =	snd_intel8x0_hw_params,
1375 	.hw_free =	snd_intel8x0_hw_free,
1376 	.prepare =	snd_intel8x0_pcm_prepare,
1377 	.trigger =	snd_intel8x0_pcm_trigger,
1378 	.pointer =	snd_intel8x0_pcm_pointer,
1379 };
1380 
1381 static const struct snd_pcm_ops snd_intel8x0_capture_ops = {
1382 	.open =		snd_intel8x0_capture_open,
1383 	.close =	snd_intel8x0_capture_close,
1384 	.ioctl =	snd_pcm_lib_ioctl,
1385 	.hw_params =	snd_intel8x0_hw_params,
1386 	.hw_free =	snd_intel8x0_hw_free,
1387 	.prepare =	snd_intel8x0_pcm_prepare,
1388 	.trigger =	snd_intel8x0_pcm_trigger,
1389 	.pointer =	snd_intel8x0_pcm_pointer,
1390 };
1391 
1392 static const struct snd_pcm_ops snd_intel8x0_capture_mic_ops = {
1393 	.open =		snd_intel8x0_mic_open,
1394 	.close =	snd_intel8x0_mic_close,
1395 	.ioctl =	snd_pcm_lib_ioctl,
1396 	.hw_params =	snd_intel8x0_hw_params,
1397 	.hw_free =	snd_intel8x0_hw_free,
1398 	.prepare =	snd_intel8x0_pcm_prepare,
1399 	.trigger =	snd_intel8x0_pcm_trigger,
1400 	.pointer =	snd_intel8x0_pcm_pointer,
1401 };
1402 
1403 static const struct snd_pcm_ops snd_intel8x0_capture_mic2_ops = {
1404 	.open =		snd_intel8x0_mic2_open,
1405 	.close =	snd_intel8x0_mic2_close,
1406 	.ioctl =	snd_pcm_lib_ioctl,
1407 	.hw_params =	snd_intel8x0_hw_params,
1408 	.hw_free =	snd_intel8x0_hw_free,
1409 	.prepare =	snd_intel8x0_pcm_prepare,
1410 	.trigger =	snd_intel8x0_pcm_trigger,
1411 	.pointer =	snd_intel8x0_pcm_pointer,
1412 };
1413 
1414 static const struct snd_pcm_ops snd_intel8x0_capture2_ops = {
1415 	.open =		snd_intel8x0_capture2_open,
1416 	.close =	snd_intel8x0_capture2_close,
1417 	.ioctl =	snd_pcm_lib_ioctl,
1418 	.hw_params =	snd_intel8x0_hw_params,
1419 	.hw_free =	snd_intel8x0_hw_free,
1420 	.prepare =	snd_intel8x0_pcm_prepare,
1421 	.trigger =	snd_intel8x0_pcm_trigger,
1422 	.pointer =	snd_intel8x0_pcm_pointer,
1423 };
1424 
1425 static const struct snd_pcm_ops snd_intel8x0_spdif_ops = {
1426 	.open =		snd_intel8x0_spdif_open,
1427 	.close =	snd_intel8x0_spdif_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 const struct snd_pcm_ops snd_intel8x0_ali_playback_ops = {
1437 	.open =		snd_intel8x0_playback_open,
1438 	.close =	snd_intel8x0_playback_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_ali_trigger,
1444 	.pointer =	snd_intel8x0_pcm_pointer,
1445 };
1446 
1447 static const struct snd_pcm_ops snd_intel8x0_ali_capture_ops = {
1448 	.open =		snd_intel8x0_capture_open,
1449 	.close =	snd_intel8x0_capture_close,
1450 	.ioctl =	snd_pcm_lib_ioctl,
1451 	.hw_params =	snd_intel8x0_hw_params,
1452 	.hw_free =	snd_intel8x0_hw_free,
1453 	.prepare =	snd_intel8x0_pcm_prepare,
1454 	.trigger =	snd_intel8x0_ali_trigger,
1455 	.pointer =	snd_intel8x0_pcm_pointer,
1456 };
1457 
1458 static const struct snd_pcm_ops snd_intel8x0_ali_capture_mic_ops = {
1459 	.open =		snd_intel8x0_mic_open,
1460 	.close =	snd_intel8x0_mic_close,
1461 	.ioctl =	snd_pcm_lib_ioctl,
1462 	.hw_params =	snd_intel8x0_hw_params,
1463 	.hw_free =	snd_intel8x0_hw_free,
1464 	.prepare =	snd_intel8x0_pcm_prepare,
1465 	.trigger =	snd_intel8x0_ali_trigger,
1466 	.pointer =	snd_intel8x0_pcm_pointer,
1467 };
1468 
1469 static const struct snd_pcm_ops snd_intel8x0_ali_ac97spdifout_ops = {
1470 	.open =		snd_intel8x0_ali_ac97spdifout_open,
1471 	.close =	snd_intel8x0_ali_ac97spdifout_close,
1472 	.ioctl =	snd_pcm_lib_ioctl,
1473 	.hw_params =	snd_intel8x0_hw_params,
1474 	.hw_free =	snd_intel8x0_hw_free,
1475 	.prepare =	snd_intel8x0_pcm_prepare,
1476 	.trigger =	snd_intel8x0_ali_trigger,
1477 	.pointer =	snd_intel8x0_pcm_pointer,
1478 };
1479 
1480 #if 0 // NYI
1481 static struct snd_pcm_ops snd_intel8x0_ali_spdifin_ops = {
1482 	.open =		snd_intel8x0_ali_spdifin_open,
1483 	.close =	snd_intel8x0_ali_spdifin_close,
1484 	.ioctl =	snd_pcm_lib_ioctl,
1485 	.hw_params =	snd_intel8x0_hw_params,
1486 	.hw_free =	snd_intel8x0_hw_free,
1487 	.prepare =	snd_intel8x0_pcm_prepare,
1488 	.trigger =	snd_intel8x0_pcm_trigger,
1489 	.pointer =	snd_intel8x0_pcm_pointer,
1490 };
1491 
1492 static struct snd_pcm_ops snd_intel8x0_ali_spdifout_ops = {
1493 	.open =		snd_intel8x0_ali_spdifout_open,
1494 	.close =	snd_intel8x0_ali_spdifout_close,
1495 	.ioctl =	snd_pcm_lib_ioctl,
1496 	.hw_params =	snd_intel8x0_hw_params,
1497 	.hw_free =	snd_intel8x0_hw_free,
1498 	.prepare =	snd_intel8x0_pcm_prepare,
1499 	.trigger =	snd_intel8x0_pcm_trigger,
1500 	.pointer =	snd_intel8x0_pcm_pointer,
1501 };
1502 #endif // NYI
1503 
1504 struct ich_pcm_table {
1505 	char *suffix;
1506 	const struct snd_pcm_ops *playback_ops;
1507 	const struct snd_pcm_ops *capture_ops;
1508 	size_t prealloc_size;
1509 	size_t prealloc_max_size;
1510 	int ac97_idx;
1511 };
1512 
1513 static int snd_intel8x0_pcm1(struct intel8x0 *chip, int device,
1514 			     struct ich_pcm_table *rec)
1515 {
1516 	struct snd_pcm *pcm;
1517 	int err;
1518 	char name[32];
1519 
1520 	if (rec->suffix)
1521 		sprintf(name, "Intel ICH - %s", rec->suffix);
1522 	else
1523 		strcpy(name, "Intel ICH");
1524 	err = snd_pcm_new(chip->card, name, device,
1525 			  rec->playback_ops ? 1 : 0,
1526 			  rec->capture_ops ? 1 : 0, &pcm);
1527 	if (err < 0)
1528 		return err;
1529 
1530 	if (rec->playback_ops)
1531 		snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, rec->playback_ops);
1532 	if (rec->capture_ops)
1533 		snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, rec->capture_ops);
1534 
1535 	pcm->private_data = chip;
1536 	pcm->info_flags = 0;
1537 	if (rec->suffix)
1538 		sprintf(pcm->name, "%s - %s", chip->card->shortname, rec->suffix);
1539 	else
1540 		strcpy(pcm->name, chip->card->shortname);
1541 	chip->pcm[device] = pcm;
1542 
1543 	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
1544 					      snd_dma_pci_data(chip->pci),
1545 					      rec->prealloc_size, rec->prealloc_max_size);
1546 
1547 	if (rec->playback_ops &&
1548 	    rec->playback_ops->open == snd_intel8x0_playback_open) {
1549 		struct snd_pcm_chmap *chmap;
1550 		int chs = 2;
1551 		if (chip->multi8)
1552 			chs = 8;
1553 		else if (chip->multi6)
1554 			chs = 6;
1555 		else if (chip->multi4)
1556 			chs = 4;
1557 		err = snd_pcm_add_chmap_ctls(pcm, SNDRV_PCM_STREAM_PLAYBACK,
1558 					     snd_pcm_alt_chmaps, chs, 0,
1559 					     &chmap);
1560 		if (err < 0)
1561 			return err;
1562 		chmap->channel_mask = SND_PCM_CHMAP_MASK_2468;
1563 		chip->ac97[0]->chmaps[SNDRV_PCM_STREAM_PLAYBACK] = chmap;
1564 	}
1565 
1566 	return 0;
1567 }
1568 
1569 static struct ich_pcm_table intel_pcms[] = {
1570 	{
1571 		.playback_ops = &snd_intel8x0_playback_ops,
1572 		.capture_ops = &snd_intel8x0_capture_ops,
1573 		.prealloc_size = 64 * 1024,
1574 		.prealloc_max_size = 128 * 1024,
1575 	},
1576 	{
1577 		.suffix = "MIC ADC",
1578 		.capture_ops = &snd_intel8x0_capture_mic_ops,
1579 		.prealloc_size = 0,
1580 		.prealloc_max_size = 128 * 1024,
1581 		.ac97_idx = ICHD_MIC,
1582 	},
1583 	{
1584 		.suffix = "MIC2 ADC",
1585 		.capture_ops = &snd_intel8x0_capture_mic2_ops,
1586 		.prealloc_size = 0,
1587 		.prealloc_max_size = 128 * 1024,
1588 		.ac97_idx = ICHD_MIC2,
1589 	},
1590 	{
1591 		.suffix = "ADC2",
1592 		.capture_ops = &snd_intel8x0_capture2_ops,
1593 		.prealloc_size = 0,
1594 		.prealloc_max_size = 128 * 1024,
1595 		.ac97_idx = ICHD_PCM2IN,
1596 	},
1597 	{
1598 		.suffix = "IEC958",
1599 		.playback_ops = &snd_intel8x0_spdif_ops,
1600 		.prealloc_size = 64 * 1024,
1601 		.prealloc_max_size = 128 * 1024,
1602 		.ac97_idx = ICHD_SPBAR,
1603 	},
1604 };
1605 
1606 static struct ich_pcm_table nforce_pcms[] = {
1607 	{
1608 		.playback_ops = &snd_intel8x0_playback_ops,
1609 		.capture_ops = &snd_intel8x0_capture_ops,
1610 		.prealloc_size = 64 * 1024,
1611 		.prealloc_max_size = 128 * 1024,
1612 	},
1613 	{
1614 		.suffix = "MIC ADC",
1615 		.capture_ops = &snd_intel8x0_capture_mic_ops,
1616 		.prealloc_size = 0,
1617 		.prealloc_max_size = 128 * 1024,
1618 		.ac97_idx = NVD_MIC,
1619 	},
1620 	{
1621 		.suffix = "IEC958",
1622 		.playback_ops = &snd_intel8x0_spdif_ops,
1623 		.prealloc_size = 64 * 1024,
1624 		.prealloc_max_size = 128 * 1024,
1625 		.ac97_idx = NVD_SPBAR,
1626 	},
1627 };
1628 
1629 static struct ich_pcm_table ali_pcms[] = {
1630 	{
1631 		.playback_ops = &snd_intel8x0_ali_playback_ops,
1632 		.capture_ops = &snd_intel8x0_ali_capture_ops,
1633 		.prealloc_size = 64 * 1024,
1634 		.prealloc_max_size = 128 * 1024,
1635 	},
1636 	{
1637 		.suffix = "MIC ADC",
1638 		.capture_ops = &snd_intel8x0_ali_capture_mic_ops,
1639 		.prealloc_size = 0,
1640 		.prealloc_max_size = 128 * 1024,
1641 		.ac97_idx = ALID_MIC,
1642 	},
1643 	{
1644 		.suffix = "IEC958",
1645 		.playback_ops = &snd_intel8x0_ali_ac97spdifout_ops,
1646 		/* .capture_ops = &snd_intel8x0_ali_spdifin_ops, */
1647 		.prealloc_size = 64 * 1024,
1648 		.prealloc_max_size = 128 * 1024,
1649 		.ac97_idx = ALID_AC97SPDIFOUT,
1650 	},
1651 #if 0 // NYI
1652 	{
1653 		.suffix = "HW IEC958",
1654 		.playback_ops = &snd_intel8x0_ali_spdifout_ops,
1655 		.prealloc_size = 64 * 1024,
1656 		.prealloc_max_size = 128 * 1024,
1657 	},
1658 #endif
1659 };
1660 
1661 static int snd_intel8x0_pcm(struct intel8x0 *chip)
1662 {
1663 	int i, tblsize, device, err;
1664 	struct ich_pcm_table *tbl, *rec;
1665 
1666 	switch (chip->device_type) {
1667 	case DEVICE_INTEL_ICH4:
1668 		tbl = intel_pcms;
1669 		tblsize = ARRAY_SIZE(intel_pcms);
1670 		if (spdif_aclink)
1671 			tblsize--;
1672 		break;
1673 	case DEVICE_NFORCE:
1674 		tbl = nforce_pcms;
1675 		tblsize = ARRAY_SIZE(nforce_pcms);
1676 		if (spdif_aclink)
1677 			tblsize--;
1678 		break;
1679 	case DEVICE_ALI:
1680 		tbl = ali_pcms;
1681 		tblsize = ARRAY_SIZE(ali_pcms);
1682 		break;
1683 	default:
1684 		tbl = intel_pcms;
1685 		tblsize = 2;
1686 		break;
1687 	}
1688 
1689 	device = 0;
1690 	for (i = 0; i < tblsize; i++) {
1691 		rec = tbl + i;
1692 		if (i > 0 && rec->ac97_idx) {
1693 			/* activate PCM only when associated AC'97 codec */
1694 			if (! chip->ichd[rec->ac97_idx].pcm)
1695 				continue;
1696 		}
1697 		err = snd_intel8x0_pcm1(chip, device, rec);
1698 		if (err < 0)
1699 			return err;
1700 		device++;
1701 	}
1702 
1703 	chip->pcm_devs = device;
1704 	return 0;
1705 }
1706 
1707 
1708 /*
1709  *  Mixer part
1710  */
1711 
1712 static void snd_intel8x0_mixer_free_ac97_bus(struct snd_ac97_bus *bus)
1713 {
1714 	struct intel8x0 *chip = bus->private_data;
1715 	chip->ac97_bus = NULL;
1716 }
1717 
1718 static void snd_intel8x0_mixer_free_ac97(struct snd_ac97 *ac97)
1719 {
1720 	struct intel8x0 *chip = ac97->private_data;
1721 	chip->ac97[ac97->num] = NULL;
1722 }
1723 
1724 static const struct ac97_pcm ac97_pcm_defs[] = {
1725 	/* front PCM */
1726 	{
1727 		.exclusive = 1,
1728 		.r = {	{
1729 				.slots = (1 << AC97_SLOT_PCM_LEFT) |
1730 					 (1 << AC97_SLOT_PCM_RIGHT) |
1731 					 (1 << AC97_SLOT_PCM_CENTER) |
1732 					 (1 << AC97_SLOT_PCM_SLEFT) |
1733 					 (1 << AC97_SLOT_PCM_SRIGHT) |
1734 					 (1 << AC97_SLOT_LFE)
1735 			},
1736 			{
1737 				.slots = (1 << AC97_SLOT_PCM_LEFT) |
1738 					 (1 << AC97_SLOT_PCM_RIGHT) |
1739 					 (1 << AC97_SLOT_PCM_LEFT_0) |
1740 					 (1 << AC97_SLOT_PCM_RIGHT_0)
1741 			}
1742 		}
1743 	},
1744 	/* PCM IN #1 */
1745 	{
1746 		.stream = 1,
1747 		.exclusive = 1,
1748 		.r = {	{
1749 				.slots = (1 << AC97_SLOT_PCM_LEFT) |
1750 					 (1 << AC97_SLOT_PCM_RIGHT)
1751 			}
1752 		}
1753 	},
1754 	/* MIC IN #1 */
1755 	{
1756 		.stream = 1,
1757 		.exclusive = 1,
1758 		.r = {	{
1759 				.slots = (1 << AC97_SLOT_MIC)
1760 			}
1761 		}
1762 	},
1763 	/* S/PDIF PCM */
1764 	{
1765 		.exclusive = 1,
1766 		.spdif = 1,
1767 		.r = {	{
1768 				.slots = (1 << AC97_SLOT_SPDIF_LEFT2) |
1769 					 (1 << AC97_SLOT_SPDIF_RIGHT2)
1770 			}
1771 		}
1772 	},
1773 	/* PCM IN #2 */
1774 	{
1775 		.stream = 1,
1776 		.exclusive = 1,
1777 		.r = {	{
1778 				.slots = (1 << AC97_SLOT_PCM_LEFT) |
1779 					 (1 << AC97_SLOT_PCM_RIGHT)
1780 			}
1781 		}
1782 	},
1783 	/* MIC IN #2 */
1784 	{
1785 		.stream = 1,
1786 		.exclusive = 1,
1787 		.r = {	{
1788 				.slots = (1 << AC97_SLOT_MIC)
1789 			}
1790 		}
1791 	},
1792 };
1793 
1794 static const struct ac97_quirk ac97_quirks[] = {
1795         {
1796 		.subvendor = 0x0e11,
1797 		.subdevice = 0x000e,
1798 		.name = "Compaq Deskpro EN",	/* AD1885 */
1799 		.type = AC97_TUNE_HP_ONLY
1800         },
1801 	{
1802 		.subvendor = 0x0e11,
1803 		.subdevice = 0x008a,
1804 		.name = "Compaq Evo W4000",	/* AD1885 */
1805 		.type = AC97_TUNE_HP_ONLY
1806 	},
1807 	{
1808 		.subvendor = 0x0e11,
1809 		.subdevice = 0x00b8,
1810 		.name = "Compaq Evo D510C",
1811 		.type = AC97_TUNE_HP_ONLY
1812 	},
1813         {
1814 		.subvendor = 0x0e11,
1815 		.subdevice = 0x0860,
1816 		.name = "HP/Compaq nx7010",
1817 		.type = AC97_TUNE_MUTE_LED
1818         },
1819 	{
1820 		.subvendor = 0x1014,
1821 		.subdevice = 0x0534,
1822 		.name = "ThinkPad X31",
1823 		.type = AC97_TUNE_INV_EAPD
1824 	},
1825 	{
1826 		.subvendor = 0x1014,
1827 		.subdevice = 0x1f00,
1828 		.name = "MS-9128",
1829 		.type = AC97_TUNE_ALC_JACK
1830 	},
1831 	{
1832 		.subvendor = 0x1014,
1833 		.subdevice = 0x0267,
1834 		.name = "IBM NetVista A30p",	/* AD1981B */
1835 		.type = AC97_TUNE_HP_ONLY
1836 	},
1837 	{
1838 		.subvendor = 0x1025,
1839 		.subdevice = 0x0082,
1840 		.name = "Acer Travelmate 2310",
1841 		.type = AC97_TUNE_HP_ONLY
1842 	},
1843 	{
1844 		.subvendor = 0x1025,
1845 		.subdevice = 0x0083,
1846 		.name = "Acer Aspire 3003LCi",
1847 		.type = AC97_TUNE_HP_ONLY
1848 	},
1849 	{
1850 		.subvendor = 0x1028,
1851 		.subdevice = 0x00d8,
1852 		.name = "Dell Precision 530",	/* AD1885 */
1853 		.type = AC97_TUNE_HP_ONLY
1854 	},
1855 	{
1856 		.subvendor = 0x1028,
1857 		.subdevice = 0x010d,
1858 		.name = "Dell",	/* which model?  AD1885 */
1859 		.type = AC97_TUNE_HP_ONLY
1860 	},
1861 	{
1862 		.subvendor = 0x1028,
1863 		.subdevice = 0x0126,
1864 		.name = "Dell Optiplex GX260",	/* AD1981A */
1865 		.type = AC97_TUNE_HP_ONLY
1866 	},
1867 	{
1868 		.subvendor = 0x1028,
1869 		.subdevice = 0x012c,
1870 		.name = "Dell Precision 650",	/* AD1981A */
1871 		.type = AC97_TUNE_HP_ONLY
1872 	},
1873 	{
1874 		.subvendor = 0x1028,
1875 		.subdevice = 0x012d,
1876 		.name = "Dell Precision 450",	/* AD1981B*/
1877 		.type = AC97_TUNE_HP_ONLY
1878 	},
1879 	{
1880 		.subvendor = 0x1028,
1881 		.subdevice = 0x0147,
1882 		.name = "Dell",	/* which model?  AD1981B*/
1883 		.type = AC97_TUNE_HP_ONLY
1884 	},
1885 	{
1886 		.subvendor = 0x1028,
1887 		.subdevice = 0x0151,
1888 		.name = "Dell Optiplex GX270",  /* AD1981B */
1889 		.type = AC97_TUNE_HP_ONLY
1890 	},
1891 	{
1892 		.subvendor = 0x1028,
1893 		.subdevice = 0x014e,
1894 		.name = "Dell D800", /* STAC9750/51 */
1895 		.type = AC97_TUNE_HP_ONLY
1896 	},
1897 	{
1898 		.subvendor = 0x1028,
1899 		.subdevice = 0x0163,
1900 		.name = "Dell Unknown",	/* STAC9750/51 */
1901 		.type = AC97_TUNE_HP_ONLY
1902 	},
1903 	{
1904 		.subvendor = 0x1028,
1905 		.subdevice = 0x016a,
1906 		.name = "Dell Inspiron 8600",	/* STAC9750/51 */
1907 		.type = AC97_TUNE_HP_ONLY
1908 	},
1909 	{
1910 		.subvendor = 0x1028,
1911 		.subdevice = 0x0182,
1912 		.name = "Dell Latitude D610",	/* STAC9750/51 */
1913 		.type = AC97_TUNE_HP_ONLY
1914 	},
1915 	{
1916 		.subvendor = 0x1028,
1917 		.subdevice = 0x0186,
1918 		.name = "Dell Latitude D810", /* cf. Malone #41015 */
1919 		.type = AC97_TUNE_HP_MUTE_LED
1920 	},
1921 	{
1922 		.subvendor = 0x1028,
1923 		.subdevice = 0x0188,
1924 		.name = "Dell Inspiron 6000",
1925 		.type = AC97_TUNE_HP_MUTE_LED /* cf. Malone #41015 */
1926 	},
1927 	{
1928 		.subvendor = 0x1028,
1929 		.subdevice = 0x0189,
1930 		.name = "Dell Inspiron 9300",
1931 		.type = AC97_TUNE_HP_MUTE_LED
1932 	},
1933 	{
1934 		.subvendor = 0x1028,
1935 		.subdevice = 0x0191,
1936 		.name = "Dell Inspiron 8600",
1937 		.type = AC97_TUNE_HP_ONLY
1938 	},
1939 	{
1940 		.subvendor = 0x103c,
1941 		.subdevice = 0x006d,
1942 		.name = "HP zv5000",
1943 		.type = AC97_TUNE_MUTE_LED	/*AD1981B*/
1944 	},
1945 	{	/* FIXME: which codec? */
1946 		.subvendor = 0x103c,
1947 		.subdevice = 0x00c3,
1948 		.name = "HP xw6000",
1949 		.type = AC97_TUNE_HP_ONLY
1950 	},
1951 	{
1952 		.subvendor = 0x103c,
1953 		.subdevice = 0x088c,
1954 		.name = "HP nc8000",
1955 		.type = AC97_TUNE_HP_MUTE_LED
1956 	},
1957 	{
1958 		.subvendor = 0x103c,
1959 		.subdevice = 0x0890,
1960 		.name = "HP nc6000",
1961 		.type = AC97_TUNE_MUTE_LED
1962 	},
1963 	{
1964 		.subvendor = 0x103c,
1965 		.subdevice = 0x129d,
1966 		.name = "HP xw8000",
1967 		.type = AC97_TUNE_HP_ONLY
1968 	},
1969 	{
1970 		.subvendor = 0x103c,
1971 		.subdevice = 0x0938,
1972 		.name = "HP nc4200",
1973 		.type = AC97_TUNE_HP_MUTE_LED
1974 	},
1975 	{
1976 		.subvendor = 0x103c,
1977 		.subdevice = 0x099c,
1978 		.name = "HP nx6110/nc6120",
1979 		.type = AC97_TUNE_HP_MUTE_LED
1980 	},
1981 	{
1982 		.subvendor = 0x103c,
1983 		.subdevice = 0x0944,
1984 		.name = "HP nc6220",
1985 		.type = AC97_TUNE_HP_MUTE_LED
1986 	},
1987 	{
1988 		.subvendor = 0x103c,
1989 		.subdevice = 0x0934,
1990 		.name = "HP nc8220",
1991 		.type = AC97_TUNE_HP_MUTE_LED
1992 	},
1993 	{
1994 		.subvendor = 0x103c,
1995 		.subdevice = 0x12f1,
1996 		.name = "HP xw8200",	/* AD1981B*/
1997 		.type = AC97_TUNE_HP_ONLY
1998 	},
1999 	{
2000 		.subvendor = 0x103c,
2001 		.subdevice = 0x12f2,
2002 		.name = "HP xw6200",
2003 		.type = AC97_TUNE_HP_ONLY
2004 	},
2005 	{
2006 		.subvendor = 0x103c,
2007 		.subdevice = 0x3008,
2008 		.name = "HP xw4200",	/* AD1981B*/
2009 		.type = AC97_TUNE_HP_ONLY
2010 	},
2011 	{
2012 		.subvendor = 0x104d,
2013 		.subdevice = 0x8144,
2014 		.name = "Sony",
2015 		.type = AC97_TUNE_INV_EAPD
2016 	},
2017 	{
2018 		.subvendor = 0x104d,
2019 		.subdevice = 0x8197,
2020 		.name = "Sony S1XP",
2021 		.type = AC97_TUNE_INV_EAPD
2022 	},
2023 	{
2024 		.subvendor = 0x104d,
2025 		.subdevice = 0x81c0,
2026 		.name = "Sony VAIO VGN-T350P", /*AD1981B*/
2027 		.type = AC97_TUNE_INV_EAPD
2028 	},
2029 	{
2030 		.subvendor = 0x104d,
2031 		.subdevice = 0x81c5,
2032 		.name = "Sony VAIO VGN-B1VP", /*AD1981B*/
2033 		.type = AC97_TUNE_INV_EAPD
2034 	},
2035  	{
2036 		.subvendor = 0x1043,
2037 		.subdevice = 0x80f3,
2038 		.name = "ASUS ICH5/AD1985",
2039 		.type = AC97_TUNE_AD_SHARING
2040 	},
2041 	{
2042 		.subvendor = 0x10cf,
2043 		.subdevice = 0x11c3,
2044 		.name = "Fujitsu-Siemens E4010",
2045 		.type = AC97_TUNE_HP_ONLY
2046 	},
2047 	{
2048 		.subvendor = 0x10cf,
2049 		.subdevice = 0x1225,
2050 		.name = "Fujitsu-Siemens T3010",
2051 		.type = AC97_TUNE_HP_ONLY
2052 	},
2053 	{
2054 		.subvendor = 0x10cf,
2055 		.subdevice = 0x1253,
2056 		.name = "Fujitsu S6210",	/* STAC9750/51 */
2057 		.type = AC97_TUNE_HP_ONLY
2058 	},
2059 	{
2060 		.subvendor = 0x10cf,
2061 		.subdevice = 0x127d,
2062 		.name = "Fujitsu Lifebook P7010",
2063 		.type = AC97_TUNE_HP_ONLY
2064 	},
2065 	{
2066 		.subvendor = 0x10cf,
2067 		.subdevice = 0x127e,
2068 		.name = "Fujitsu Lifebook C1211D",
2069 		.type = AC97_TUNE_HP_ONLY
2070 	},
2071 	{
2072 		.subvendor = 0x10cf,
2073 		.subdevice = 0x12ec,
2074 		.name = "Fujitsu-Siemens 4010",
2075 		.type = AC97_TUNE_HP_ONLY
2076 	},
2077 	{
2078 		.subvendor = 0x10cf,
2079 		.subdevice = 0x12f2,
2080 		.name = "Fujitsu-Siemens Celsius H320",
2081 		.type = AC97_TUNE_SWAP_HP
2082 	},
2083 	{
2084 		.subvendor = 0x10f1,
2085 		.subdevice = 0x2665,
2086 		.name = "Fujitsu-Siemens Celsius",	/* AD1981? */
2087 		.type = AC97_TUNE_HP_ONLY
2088 	},
2089 	{
2090 		.subvendor = 0x10f1,
2091 		.subdevice = 0x2885,
2092 		.name = "AMD64 Mobo",	/* ALC650 */
2093 		.type = AC97_TUNE_HP_ONLY
2094 	},
2095 	{
2096 		.subvendor = 0x10f1,
2097 		.subdevice = 0x2895,
2098 		.name = "Tyan Thunder K8WE",
2099 		.type = AC97_TUNE_HP_ONLY
2100 	},
2101 	{
2102 		.subvendor = 0x10f7,
2103 		.subdevice = 0x834c,
2104 		.name = "Panasonic CF-R4",
2105 		.type = AC97_TUNE_HP_ONLY,
2106 	},
2107 	{
2108 		.subvendor = 0x110a,
2109 		.subdevice = 0x0056,
2110 		.name = "Fujitsu-Siemens Scenic",	/* AD1981? */
2111 		.type = AC97_TUNE_HP_ONLY
2112 	},
2113 	{
2114 		.subvendor = 0x11d4,
2115 		.subdevice = 0x5375,
2116 		.name = "ADI AD1985 (discrete)",
2117 		.type = AC97_TUNE_HP_ONLY
2118 	},
2119 	{
2120 		.subvendor = 0x1462,
2121 		.subdevice = 0x5470,
2122 		.name = "MSI P4 ATX 645 Ultra",
2123 		.type = AC97_TUNE_HP_ONLY
2124 	},
2125 	{
2126 		.subvendor = 0x161f,
2127 		.subdevice = 0x202f,
2128 		.name = "Gateway M520",
2129 		.type = AC97_TUNE_INV_EAPD
2130 	},
2131 	{
2132 		.subvendor = 0x161f,
2133 		.subdevice = 0x203a,
2134 		.name = "Gateway 4525GZ",		/* AD1981B */
2135 		.type = AC97_TUNE_INV_EAPD
2136 	},
2137 	{
2138 		.subvendor = 0x1734,
2139 		.subdevice = 0x0088,
2140 		.name = "Fujitsu-Siemens D1522",	/* AD1981 */
2141 		.type = AC97_TUNE_HP_ONLY
2142 	},
2143 	{
2144 		.subvendor = 0x8086,
2145 		.subdevice = 0x2000,
2146 		.mask = 0xfff0,
2147 		.name = "Intel ICH5/AD1985",
2148 		.type = AC97_TUNE_AD_SHARING
2149 	},
2150 	{
2151 		.subvendor = 0x8086,
2152 		.subdevice = 0x4000,
2153 		.mask = 0xfff0,
2154 		.name = "Intel ICH5/AD1985",
2155 		.type = AC97_TUNE_AD_SHARING
2156 	},
2157 	{
2158 		.subvendor = 0x8086,
2159 		.subdevice = 0x4856,
2160 		.name = "Intel D845WN (82801BA)",
2161 		.type = AC97_TUNE_SWAP_HP
2162 	},
2163 	{
2164 		.subvendor = 0x8086,
2165 		.subdevice = 0x4d44,
2166 		.name = "Intel D850EMV2",	/* AD1885 */
2167 		.type = AC97_TUNE_HP_ONLY
2168 	},
2169 	{
2170 		.subvendor = 0x8086,
2171 		.subdevice = 0x4d56,
2172 		.name = "Intel ICH/AD1885",
2173 		.type = AC97_TUNE_HP_ONLY
2174 	},
2175 	{
2176 		.subvendor = 0x8086,
2177 		.subdevice = 0x6000,
2178 		.mask = 0xfff0,
2179 		.name = "Intel ICH5/AD1985",
2180 		.type = AC97_TUNE_AD_SHARING
2181 	},
2182 	{
2183 		.subvendor = 0x8086,
2184 		.subdevice = 0xe000,
2185 		.mask = 0xfff0,
2186 		.name = "Intel ICH5/AD1985",
2187 		.type = AC97_TUNE_AD_SHARING
2188 	},
2189 #if 0 /* FIXME: this seems wrong on most boards */
2190 	{
2191 		.subvendor = 0x8086,
2192 		.subdevice = 0xa000,
2193 		.mask = 0xfff0,
2194 		.name = "Intel ICH5/AD1985",
2195 		.type = AC97_TUNE_HP_ONLY
2196 	},
2197 #endif
2198 	{ } /* terminator */
2199 };
2200 
2201 static int snd_intel8x0_mixer(struct intel8x0 *chip, int ac97_clock,
2202 			      const char *quirk_override)
2203 {
2204 	struct snd_ac97_bus *pbus;
2205 	struct snd_ac97_template ac97;
2206 	int err;
2207 	unsigned int i, codecs;
2208 	unsigned int glob_sta = 0;
2209 	struct snd_ac97_bus_ops *ops;
2210 	static struct snd_ac97_bus_ops standard_bus_ops = {
2211 		.write = snd_intel8x0_codec_write,
2212 		.read = snd_intel8x0_codec_read,
2213 	};
2214 	static struct snd_ac97_bus_ops ali_bus_ops = {
2215 		.write = snd_intel8x0_ali_codec_write,
2216 		.read = snd_intel8x0_ali_codec_read,
2217 	};
2218 
2219 	chip->spdif_idx = -1; /* use PCMOUT (or disabled) */
2220 	if (!spdif_aclink) {
2221 		switch (chip->device_type) {
2222 		case DEVICE_NFORCE:
2223 			chip->spdif_idx = NVD_SPBAR;
2224 			break;
2225 		case DEVICE_ALI:
2226 			chip->spdif_idx = ALID_AC97SPDIFOUT;
2227 			break;
2228 		case DEVICE_INTEL_ICH4:
2229 			chip->spdif_idx = ICHD_SPBAR;
2230 			break;
2231 		}
2232 	}
2233 
2234 	chip->in_ac97_init = 1;
2235 
2236 	memset(&ac97, 0, sizeof(ac97));
2237 	ac97.private_data = chip;
2238 	ac97.private_free = snd_intel8x0_mixer_free_ac97;
2239 	ac97.scaps = AC97_SCAP_SKIP_MODEM | AC97_SCAP_POWER_SAVE;
2240 	if (chip->xbox)
2241 		ac97.scaps |= AC97_SCAP_DETECT_BY_VENDOR;
2242 	if (chip->device_type != DEVICE_ALI) {
2243 		glob_sta = igetdword(chip, ICHREG(GLOB_STA));
2244 		ops = &standard_bus_ops;
2245 		chip->in_sdin_init = 1;
2246 		codecs = 0;
2247 		for (i = 0; i < chip->max_codecs; i++) {
2248 			if (! (glob_sta & chip->codec_bit[i]))
2249 				continue;
2250 			if (chip->device_type == DEVICE_INTEL_ICH4) {
2251 				snd_intel8x0_codec_read_test(chip, codecs);
2252 				chip->ac97_sdin[codecs] =
2253 					igetbyte(chip, ICHREG(SDM)) & ICH_LDI_MASK;
2254 				if (snd_BUG_ON(chip->ac97_sdin[codecs] >= 3))
2255 					chip->ac97_sdin[codecs] = 0;
2256 			} else
2257 				chip->ac97_sdin[codecs] = i;
2258 			codecs++;
2259 		}
2260 		chip->in_sdin_init = 0;
2261 		if (! codecs)
2262 			codecs = 1;
2263 	} else {
2264 		ops = &ali_bus_ops;
2265 		codecs = 1;
2266 		/* detect the secondary codec */
2267 		for (i = 0; i < 100; i++) {
2268 			unsigned int reg = igetdword(chip, ICHREG(ALI_RTSR));
2269 			if (reg & 0x40) {
2270 				codecs = 2;
2271 				break;
2272 			}
2273 			iputdword(chip, ICHREG(ALI_RTSR), reg | 0x40);
2274 			udelay(1);
2275 		}
2276 	}
2277 	if ((err = snd_ac97_bus(chip->card, 0, ops, chip, &pbus)) < 0)
2278 		goto __err;
2279 	pbus->private_free = snd_intel8x0_mixer_free_ac97_bus;
2280 	if (ac97_clock >= 8000 && ac97_clock <= 48000)
2281 		pbus->clock = ac97_clock;
2282 	/* FIXME: my test board doesn't work well with VRA... */
2283 	if (chip->device_type == DEVICE_ALI)
2284 		pbus->no_vra = 1;
2285 	else
2286 		pbus->dra = 1;
2287 	chip->ac97_bus = pbus;
2288 	chip->ncodecs = codecs;
2289 
2290 	ac97.pci = chip->pci;
2291 	for (i = 0; i < codecs; i++) {
2292 		ac97.num = i;
2293 		if ((err = snd_ac97_mixer(pbus, &ac97, &chip->ac97[i])) < 0) {
2294 			if (err != -EACCES)
2295 				dev_err(chip->card->dev,
2296 					"Unable to initialize codec #%d\n", i);
2297 			if (i == 0)
2298 				goto __err;
2299 		}
2300 	}
2301 	/* tune up the primary codec */
2302 	snd_ac97_tune_hardware(chip->ac97[0], ac97_quirks, quirk_override);
2303 	/* enable separate SDINs for ICH4 */
2304 	if (chip->device_type == DEVICE_INTEL_ICH4)
2305 		pbus->isdin = 1;
2306 	/* find the available PCM streams */
2307 	i = ARRAY_SIZE(ac97_pcm_defs);
2308 	if (chip->device_type != DEVICE_INTEL_ICH4)
2309 		i -= 2;		/* do not allocate PCM2IN and MIC2 */
2310 	if (chip->spdif_idx < 0)
2311 		i--;		/* do not allocate S/PDIF */
2312 	err = snd_ac97_pcm_assign(pbus, i, ac97_pcm_defs);
2313 	if (err < 0)
2314 		goto __err;
2315 	chip->ichd[ICHD_PCMOUT].pcm = &pbus->pcms[0];
2316 	chip->ichd[ICHD_PCMIN].pcm = &pbus->pcms[1];
2317 	chip->ichd[ICHD_MIC].pcm = &pbus->pcms[2];
2318 	if (chip->spdif_idx >= 0)
2319 		chip->ichd[chip->spdif_idx].pcm = &pbus->pcms[3];
2320 	if (chip->device_type == DEVICE_INTEL_ICH4) {
2321 		chip->ichd[ICHD_PCM2IN].pcm = &pbus->pcms[4];
2322 		chip->ichd[ICHD_MIC2].pcm = &pbus->pcms[5];
2323 	}
2324 	/* enable separate SDINs for ICH4 */
2325 	if (chip->device_type == DEVICE_INTEL_ICH4) {
2326 		struct ac97_pcm *pcm = chip->ichd[ICHD_PCM2IN].pcm;
2327 		u8 tmp = igetbyte(chip, ICHREG(SDM));
2328 		tmp &= ~(ICH_DI2L_MASK|ICH_DI1L_MASK);
2329 		if (pcm) {
2330 			tmp |= ICH_SE;	/* steer enable for multiple SDINs */
2331 			tmp |= chip->ac97_sdin[0] << ICH_DI1L_SHIFT;
2332 			for (i = 1; i < 4; i++) {
2333 				if (pcm->r[0].codec[i]) {
2334 					tmp |= chip->ac97_sdin[pcm->r[0].codec[1]->num] << ICH_DI2L_SHIFT;
2335 					break;
2336 				}
2337 			}
2338 		} else {
2339 			tmp &= ~ICH_SE; /* steer disable */
2340 		}
2341 		iputbyte(chip, ICHREG(SDM), tmp);
2342 	}
2343 	if (pbus->pcms[0].r[0].slots & (1 << AC97_SLOT_PCM_SLEFT)) {
2344 		chip->multi4 = 1;
2345 		if (pbus->pcms[0].r[0].slots & (1 << AC97_SLOT_LFE)) {
2346 			chip->multi6 = 1;
2347 			if (chip->ac97[0]->flags & AC97_HAS_8CH)
2348 				chip->multi8 = 1;
2349 		}
2350 	}
2351 	if (pbus->pcms[0].r[1].rslots[0]) {
2352 		chip->dra = 1;
2353 	}
2354 	if (chip->device_type == DEVICE_INTEL_ICH4) {
2355 		if ((igetdword(chip, ICHREG(GLOB_STA)) & ICH_SAMPLE_CAP) == ICH_SAMPLE_16_20)
2356 			chip->smp20bit = 1;
2357 	}
2358 	if (chip->device_type == DEVICE_NFORCE && !spdif_aclink) {
2359 		/* 48kHz only */
2360 		chip->ichd[chip->spdif_idx].pcm->rates = SNDRV_PCM_RATE_48000;
2361 	}
2362 	if (chip->device_type == DEVICE_INTEL_ICH4 && !spdif_aclink) {
2363 		/* use slot 10/11 for SPDIF */
2364 		u32 val;
2365 		val = igetdword(chip, ICHREG(GLOB_CNT)) & ~ICH_PCM_SPDIF_MASK;
2366 		val |= ICH_PCM_SPDIF_1011;
2367 		iputdword(chip, ICHREG(GLOB_CNT), val);
2368 		snd_ac97_update_bits(chip->ac97[0], AC97_EXTENDED_STATUS, 0x03 << 4, 0x03 << 4);
2369 	}
2370 	chip->in_ac97_init = 0;
2371 	return 0;
2372 
2373  __err:
2374 	/* clear the cold-reset bit for the next chance */
2375 	if (chip->device_type != DEVICE_ALI)
2376 		iputdword(chip, ICHREG(GLOB_CNT),
2377 			  igetdword(chip, ICHREG(GLOB_CNT)) & ~ICH_AC97COLD);
2378 	return err;
2379 }
2380 
2381 
2382 /*
2383  *
2384  */
2385 
2386 static void do_ali_reset(struct intel8x0 *chip)
2387 {
2388 	iputdword(chip, ICHREG(ALI_SCR), ICH_ALI_SC_RESET);
2389 	iputdword(chip, ICHREG(ALI_FIFOCR1), 0x83838383);
2390 	iputdword(chip, ICHREG(ALI_FIFOCR2), 0x83838383);
2391 	iputdword(chip, ICHREG(ALI_FIFOCR3), 0x83838383);
2392 	iputdword(chip, ICHREG(ALI_INTERFACECR),
2393 		  ICH_ALI_IF_PI|ICH_ALI_IF_PO);
2394 	iputdword(chip, ICHREG(ALI_INTERRUPTCR), 0x00000000);
2395 	iputdword(chip, ICHREG(ALI_INTERRUPTSR), 0x00000000);
2396 }
2397 
2398 #ifdef CONFIG_SND_AC97_POWER_SAVE
2399 static struct snd_pci_quirk ich_chip_reset_mode[] = {
2400 	SND_PCI_QUIRK(0x1014, 0x051f, "Thinkpad R32", 1),
2401 	{ } /* end */
2402 };
2403 
2404 static int snd_intel8x0_ich_chip_cold_reset(struct intel8x0 *chip)
2405 {
2406 	unsigned int cnt;
2407 	/* ACLink on, 2 channels */
2408 
2409 	if (snd_pci_quirk_lookup(chip->pci, ich_chip_reset_mode))
2410 		return -EIO;
2411 
2412 	cnt = igetdword(chip, ICHREG(GLOB_CNT));
2413 	cnt &= ~(ICH_ACLINK | ICH_PCM_246_MASK);
2414 
2415 	/* do cold reset - the full ac97 powerdown may leave the controller
2416 	 * in a warm state but actually it cannot communicate with the codec.
2417 	 */
2418 	iputdword(chip, ICHREG(GLOB_CNT), cnt & ~ICH_AC97COLD);
2419 	cnt = igetdword(chip, ICHREG(GLOB_CNT));
2420 	udelay(10);
2421 	iputdword(chip, ICHREG(GLOB_CNT), cnt | ICH_AC97COLD);
2422 	msleep(1);
2423 	return 0;
2424 }
2425 #define snd_intel8x0_ich_chip_can_cold_reset(chip) \
2426 	(!snd_pci_quirk_lookup(chip->pci, ich_chip_reset_mode))
2427 #else
2428 #define snd_intel8x0_ich_chip_cold_reset(chip)	0
2429 #define snd_intel8x0_ich_chip_can_cold_reset(chip) (0)
2430 #endif
2431 
2432 static int snd_intel8x0_ich_chip_reset(struct intel8x0 *chip)
2433 {
2434 	unsigned long end_time;
2435 	unsigned int cnt;
2436 	/* ACLink on, 2 channels */
2437 	cnt = igetdword(chip, ICHREG(GLOB_CNT));
2438 	cnt &= ~(ICH_ACLINK | ICH_PCM_246_MASK);
2439 	/* finish cold or do warm reset */
2440 	cnt |= (cnt & ICH_AC97COLD) == 0 ? ICH_AC97COLD : ICH_AC97WARM;
2441 	iputdword(chip, ICHREG(GLOB_CNT), cnt);
2442 	end_time = (jiffies + (HZ / 4)) + 1;
2443 	do {
2444 		if ((igetdword(chip, ICHREG(GLOB_CNT)) & ICH_AC97WARM) == 0)
2445 			return 0;
2446 		schedule_timeout_uninterruptible(1);
2447 	} while (time_after_eq(end_time, jiffies));
2448 	dev_err(chip->card->dev, "AC'97 warm reset still in progress? [0x%x]\n",
2449 		   igetdword(chip, ICHREG(GLOB_CNT)));
2450 	return -EIO;
2451 }
2452 
2453 static int snd_intel8x0_ich_chip_init(struct intel8x0 *chip, int probing)
2454 {
2455 	unsigned long end_time;
2456 	unsigned int status, nstatus;
2457 	unsigned int cnt;
2458 	int err;
2459 
2460 	/* put logic to right state */
2461 	/* first clear status bits */
2462 	status = ICH_RCS | ICH_MCINT | ICH_POINT | ICH_PIINT;
2463 	if (chip->device_type == DEVICE_NFORCE)
2464 		status |= ICH_NVSPINT;
2465 	cnt = igetdword(chip, ICHREG(GLOB_STA));
2466 	iputdword(chip, ICHREG(GLOB_STA), cnt & status);
2467 
2468 	if (snd_intel8x0_ich_chip_can_cold_reset(chip))
2469 		err = snd_intel8x0_ich_chip_cold_reset(chip);
2470 	else
2471 		err = snd_intel8x0_ich_chip_reset(chip);
2472 	if (err < 0)
2473 		return err;
2474 
2475 	if (probing) {
2476 		/* wait for any codec ready status.
2477 		 * Once it becomes ready it should remain ready
2478 		 * as long as we do not disable the ac97 link.
2479 		 */
2480 		end_time = jiffies + HZ;
2481 		do {
2482 			status = igetdword(chip, ICHREG(GLOB_STA)) &
2483 				chip->codec_isr_bits;
2484 			if (status)
2485 				break;
2486 			schedule_timeout_uninterruptible(1);
2487 		} while (time_after_eq(end_time, jiffies));
2488 		if (! status) {
2489 			/* no codec is found */
2490 			dev_err(chip->card->dev,
2491 				"codec_ready: codec is not ready [0x%x]\n",
2492 				   igetdword(chip, ICHREG(GLOB_STA)));
2493 			return -EIO;
2494 		}
2495 
2496 		/* wait for other codecs ready status. */
2497 		end_time = jiffies + HZ / 4;
2498 		while (status != chip->codec_isr_bits &&
2499 		       time_after_eq(end_time, jiffies)) {
2500 			schedule_timeout_uninterruptible(1);
2501 			status |= igetdword(chip, ICHREG(GLOB_STA)) &
2502 				chip->codec_isr_bits;
2503 		}
2504 
2505 	} else {
2506 		/* resume phase */
2507 		int i;
2508 		status = 0;
2509 		for (i = 0; i < chip->ncodecs; i++)
2510 			if (chip->ac97[i])
2511 				status |= chip->codec_bit[chip->ac97_sdin[i]];
2512 		/* wait until all the probed codecs are ready */
2513 		end_time = jiffies + HZ;
2514 		do {
2515 			nstatus = igetdword(chip, ICHREG(GLOB_STA)) &
2516 				chip->codec_isr_bits;
2517 			if (status == nstatus)
2518 				break;
2519 			schedule_timeout_uninterruptible(1);
2520 		} while (time_after_eq(end_time, jiffies));
2521 	}
2522 
2523 	if (chip->device_type == DEVICE_SIS) {
2524 		/* unmute the output on SIS7012 */
2525 		iputword(chip, 0x4c, igetword(chip, 0x4c) | 1);
2526 	}
2527 	if (chip->device_type == DEVICE_NFORCE && !spdif_aclink) {
2528 		/* enable SPDIF interrupt */
2529 		unsigned int val;
2530 		pci_read_config_dword(chip->pci, 0x4c, &val);
2531 		val |= 0x1000000;
2532 		pci_write_config_dword(chip->pci, 0x4c, val);
2533 	}
2534       	return 0;
2535 }
2536 
2537 static int snd_intel8x0_ali_chip_init(struct intel8x0 *chip, int probing)
2538 {
2539 	u32 reg;
2540 	int i = 0;
2541 
2542 	reg = igetdword(chip, ICHREG(ALI_SCR));
2543 	if ((reg & 2) == 0)	/* Cold required */
2544 		reg |= 2;
2545 	else
2546 		reg |= 1;	/* Warm */
2547 	reg &= ~0x80000000;	/* ACLink on */
2548 	iputdword(chip, ICHREG(ALI_SCR), reg);
2549 
2550 	for (i = 0; i < HZ / 2; i++) {
2551 		if (! (igetdword(chip, ICHREG(ALI_INTERRUPTSR)) & ALI_INT_GPIO))
2552 			goto __ok;
2553 		schedule_timeout_uninterruptible(1);
2554 	}
2555 	dev_err(chip->card->dev, "AC'97 reset failed.\n");
2556 	if (probing)
2557 		return -EIO;
2558 
2559  __ok:
2560 	for (i = 0; i < HZ / 2; i++) {
2561 		reg = igetdword(chip, ICHREG(ALI_RTSR));
2562 		if (reg & 0x80) /* primary codec */
2563 			break;
2564 		iputdword(chip, ICHREG(ALI_RTSR), reg | 0x80);
2565 		schedule_timeout_uninterruptible(1);
2566 	}
2567 
2568 	do_ali_reset(chip);
2569 	return 0;
2570 }
2571 
2572 static int snd_intel8x0_chip_init(struct intel8x0 *chip, int probing)
2573 {
2574 	unsigned int i, timeout;
2575 	int err;
2576 
2577 	if (chip->device_type != DEVICE_ALI) {
2578 		if ((err = snd_intel8x0_ich_chip_init(chip, probing)) < 0)
2579 			return err;
2580 		iagetword(chip, 0);	/* clear semaphore flag */
2581 	} else {
2582 		if ((err = snd_intel8x0_ali_chip_init(chip, probing)) < 0)
2583 			return err;
2584 	}
2585 
2586 	/* disable interrupts */
2587 	for (i = 0; i < chip->bdbars_count; i++)
2588 		iputbyte(chip, ICH_REG_OFF_CR + chip->ichd[i].reg_offset, 0x00);
2589 	/* reset channels */
2590 	for (i = 0; i < chip->bdbars_count; i++)
2591 		iputbyte(chip, ICH_REG_OFF_CR + chip->ichd[i].reg_offset, ICH_RESETREGS);
2592 	for (i = 0; i < chip->bdbars_count; i++) {
2593 	        timeout = 100000;
2594 	        while (--timeout != 0) {
2595         		if ((igetbyte(chip, ICH_REG_OFF_CR + chip->ichd[i].reg_offset) & ICH_RESETREGS) == 0)
2596         		        break;
2597                 }
2598                 if (timeout == 0)
2599 			dev_err(chip->card->dev, "reset of registers failed?\n");
2600         }
2601 	/* initialize Buffer Descriptor Lists */
2602 	for (i = 0; i < chip->bdbars_count; i++)
2603 		iputdword(chip, ICH_REG_OFF_BDBAR + chip->ichd[i].reg_offset,
2604 			  chip->ichd[i].bdbar_addr);
2605 	return 0;
2606 }
2607 
2608 static int snd_intel8x0_free(struct intel8x0 *chip)
2609 {
2610 	unsigned int i;
2611 
2612 	if (chip->irq < 0)
2613 		goto __hw_end;
2614 	/* disable interrupts */
2615 	for (i = 0; i < chip->bdbars_count; i++)
2616 		iputbyte(chip, ICH_REG_OFF_CR + chip->ichd[i].reg_offset, 0x00);
2617 	/* reset channels */
2618 	for (i = 0; i < chip->bdbars_count; i++)
2619 		iputbyte(chip, ICH_REG_OFF_CR + chip->ichd[i].reg_offset, ICH_RESETREGS);
2620 	if (chip->device_type == DEVICE_NFORCE && !spdif_aclink) {
2621 		/* stop the spdif interrupt */
2622 		unsigned int val;
2623 		pci_read_config_dword(chip->pci, 0x4c, &val);
2624 		val &= ~0x1000000;
2625 		pci_write_config_dword(chip->pci, 0x4c, val);
2626 	}
2627 	/* --- */
2628 
2629       __hw_end:
2630 	if (chip->irq >= 0)
2631 		free_irq(chip->irq, chip);
2632 	if (chip->bdbars.area) {
2633 		if (chip->fix_nocache)
2634 			fill_nocache(chip->bdbars.area, chip->bdbars.bytes, 0);
2635 		snd_dma_free_pages(&chip->bdbars);
2636 	}
2637 	if (chip->addr)
2638 		pci_iounmap(chip->pci, chip->addr);
2639 	if (chip->bmaddr)
2640 		pci_iounmap(chip->pci, chip->bmaddr);
2641 	pci_release_regions(chip->pci);
2642 	pci_disable_device(chip->pci);
2643 	kfree(chip);
2644 	return 0;
2645 }
2646 
2647 #ifdef CONFIG_PM_SLEEP
2648 /*
2649  * power management
2650  */
2651 static int intel8x0_suspend(struct device *dev)
2652 {
2653 	struct snd_card *card = dev_get_drvdata(dev);
2654 	struct intel8x0 *chip = card->private_data;
2655 	int i;
2656 
2657 	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
2658 	for (i = 0; i < chip->pcm_devs; i++)
2659 		snd_pcm_suspend_all(chip->pcm[i]);
2660 	/* clear nocache */
2661 	if (chip->fix_nocache) {
2662 		for (i = 0; i < chip->bdbars_count; i++) {
2663 			struct ichdev *ichdev = &chip->ichd[i];
2664 			if (ichdev->substream && ichdev->page_attr_changed) {
2665 				struct snd_pcm_runtime *runtime = ichdev->substream->runtime;
2666 				if (runtime->dma_area)
2667 					fill_nocache(runtime->dma_area, runtime->dma_bytes, 0);
2668 			}
2669 		}
2670 	}
2671 	for (i = 0; i < chip->ncodecs; i++)
2672 		snd_ac97_suspend(chip->ac97[i]);
2673 	if (chip->device_type == DEVICE_INTEL_ICH4)
2674 		chip->sdm_saved = igetbyte(chip, ICHREG(SDM));
2675 
2676 	if (chip->irq >= 0) {
2677 		free_irq(chip->irq, chip);
2678 		chip->irq = -1;
2679 	}
2680 	return 0;
2681 }
2682 
2683 static int intel8x0_resume(struct device *dev)
2684 {
2685 	struct pci_dev *pci = to_pci_dev(dev);
2686 	struct snd_card *card = dev_get_drvdata(dev);
2687 	struct intel8x0 *chip = card->private_data;
2688 	int i;
2689 
2690 	snd_intel8x0_chip_init(chip, 0);
2691 	if (request_irq(pci->irq, snd_intel8x0_interrupt,
2692 			IRQF_SHARED, KBUILD_MODNAME, chip)) {
2693 		dev_err(dev, "unable to grab IRQ %d, disabling device\n",
2694 			pci->irq);
2695 		snd_card_disconnect(card);
2696 		return -EIO;
2697 	}
2698 	chip->irq = pci->irq;
2699 	synchronize_irq(chip->irq);
2700 
2701 	/* re-initialize mixer stuff */
2702 	if (chip->device_type == DEVICE_INTEL_ICH4 && !spdif_aclink) {
2703 		/* enable separate SDINs for ICH4 */
2704 		iputbyte(chip, ICHREG(SDM), chip->sdm_saved);
2705 		/* use slot 10/11 for SPDIF */
2706 		iputdword(chip, ICHREG(GLOB_CNT),
2707 			  (igetdword(chip, ICHREG(GLOB_CNT)) & ~ICH_PCM_SPDIF_MASK) |
2708 			  ICH_PCM_SPDIF_1011);
2709 	}
2710 
2711 	/* refill nocache */
2712 	if (chip->fix_nocache)
2713 		fill_nocache(chip->bdbars.area, chip->bdbars.bytes, 1);
2714 
2715 	for (i = 0; i < chip->ncodecs; i++)
2716 		snd_ac97_resume(chip->ac97[i]);
2717 
2718 	/* refill nocache */
2719 	if (chip->fix_nocache) {
2720 		for (i = 0; i < chip->bdbars_count; i++) {
2721 			struct ichdev *ichdev = &chip->ichd[i];
2722 			if (ichdev->substream && ichdev->page_attr_changed) {
2723 				struct snd_pcm_runtime *runtime = ichdev->substream->runtime;
2724 				if (runtime->dma_area)
2725 					fill_nocache(runtime->dma_area, runtime->dma_bytes, 1);
2726 			}
2727 		}
2728 	}
2729 
2730 	/* resume status */
2731 	for (i = 0; i < chip->bdbars_count; i++) {
2732 		struct ichdev *ichdev = &chip->ichd[i];
2733 		unsigned long port = ichdev->reg_offset;
2734 		if (! ichdev->substream || ! ichdev->suspended)
2735 			continue;
2736 		if (ichdev->ichd == ICHD_PCMOUT)
2737 			snd_intel8x0_setup_pcm_out(chip, ichdev->substream->runtime);
2738 		iputdword(chip, port + ICH_REG_OFF_BDBAR, ichdev->bdbar_addr);
2739 		iputbyte(chip, port + ICH_REG_OFF_LVI, ichdev->lvi);
2740 		iputbyte(chip, port + ICH_REG_OFF_CIV, ichdev->civ);
2741 		iputbyte(chip, port + ichdev->roff_sr, ICH_FIFOE | ICH_BCIS | ICH_LVBCI);
2742 	}
2743 
2744 	snd_power_change_state(card, SNDRV_CTL_POWER_D0);
2745 	return 0;
2746 }
2747 
2748 static SIMPLE_DEV_PM_OPS(intel8x0_pm, intel8x0_suspend, intel8x0_resume);
2749 #define INTEL8X0_PM_OPS	&intel8x0_pm
2750 #else
2751 #define INTEL8X0_PM_OPS	NULL
2752 #endif /* CONFIG_PM_SLEEP */
2753 
2754 #define INTEL8X0_TESTBUF_SIZE	32768	/* enough large for one shot */
2755 
2756 static void intel8x0_measure_ac97_clock(struct intel8x0 *chip)
2757 {
2758 	struct snd_pcm_substream *subs;
2759 	struct ichdev *ichdev;
2760 	unsigned long port;
2761 	unsigned long pos, pos1, t;
2762 	int civ, timeout = 1000, attempt = 1;
2763 	ktime_t start_time, stop_time;
2764 
2765 	if (chip->ac97_bus->clock != 48000)
2766 		return; /* specified in module option */
2767 
2768       __again:
2769 	subs = chip->pcm[0]->streams[0].substream;
2770 	if (! subs || subs->dma_buffer.bytes < INTEL8X0_TESTBUF_SIZE) {
2771 		dev_warn(chip->card->dev,
2772 			 "no playback buffer allocated - aborting measure ac97 clock\n");
2773 		return;
2774 	}
2775 	ichdev = &chip->ichd[ICHD_PCMOUT];
2776 	ichdev->physbuf = subs->dma_buffer.addr;
2777 	ichdev->size = ichdev->fragsize = INTEL8X0_TESTBUF_SIZE;
2778 	ichdev->substream = NULL; /* don't process interrupts */
2779 
2780 	/* set rate */
2781 	if (snd_ac97_set_rate(chip->ac97[0], AC97_PCM_FRONT_DAC_RATE, 48000) < 0) {
2782 		dev_err(chip->card->dev, "cannot set ac97 rate: clock = %d\n",
2783 			chip->ac97_bus->clock);
2784 		return;
2785 	}
2786 	snd_intel8x0_setup_periods(chip, ichdev);
2787 	port = ichdev->reg_offset;
2788 	spin_lock_irq(&chip->reg_lock);
2789 	chip->in_measurement = 1;
2790 	/* trigger */
2791 	if (chip->device_type != DEVICE_ALI)
2792 		iputbyte(chip, port + ICH_REG_OFF_CR, ICH_IOCE | ICH_STARTBM);
2793 	else {
2794 		iputbyte(chip, port + ICH_REG_OFF_CR, ICH_IOCE);
2795 		iputdword(chip, ICHREG(ALI_DMACR), 1 << ichdev->ali_slot);
2796 	}
2797 	start_time = ktime_get();
2798 	spin_unlock_irq(&chip->reg_lock);
2799 	msleep(50);
2800 	spin_lock_irq(&chip->reg_lock);
2801 	/* check the position */
2802 	do {
2803 		civ = igetbyte(chip, ichdev->reg_offset + ICH_REG_OFF_CIV);
2804 		pos1 = igetword(chip, ichdev->reg_offset + ichdev->roff_picb);
2805 		if (pos1 == 0) {
2806 			udelay(10);
2807 			continue;
2808 		}
2809 		if (civ == igetbyte(chip, ichdev->reg_offset + ICH_REG_OFF_CIV) &&
2810 		    pos1 == igetword(chip, ichdev->reg_offset + ichdev->roff_picb))
2811 			break;
2812 	} while (timeout--);
2813 	if (pos1 == 0) {	/* oops, this value is not reliable */
2814 		pos = 0;
2815 	} else {
2816 		pos = ichdev->fragsize1;
2817 		pos -= pos1 << ichdev->pos_shift;
2818 		pos += ichdev->position;
2819 	}
2820 	chip->in_measurement = 0;
2821 	stop_time = ktime_get();
2822 	/* stop */
2823 	if (chip->device_type == DEVICE_ALI) {
2824 		iputdword(chip, ICHREG(ALI_DMACR), 1 << (ichdev->ali_slot + 16));
2825 		iputbyte(chip, port + ICH_REG_OFF_CR, 0);
2826 		while (igetbyte(chip, port + ICH_REG_OFF_CR))
2827 			;
2828 	} else {
2829 		iputbyte(chip, port + ICH_REG_OFF_CR, 0);
2830 		while (!(igetbyte(chip, port + ichdev->roff_sr) & ICH_DCH))
2831 			;
2832 	}
2833 	iputbyte(chip, port + ICH_REG_OFF_CR, ICH_RESETREGS);
2834 	spin_unlock_irq(&chip->reg_lock);
2835 
2836 	if (pos == 0) {
2837 		dev_err(chip->card->dev,
2838 			"measure - unreliable DMA position..\n");
2839 	      __retry:
2840 		if (attempt < 3) {
2841 			msleep(300);
2842 			attempt++;
2843 			goto __again;
2844 		}
2845 		goto __end;
2846 	}
2847 
2848 	pos /= 4;
2849 	t = ktime_us_delta(stop_time, start_time);
2850 	dev_info(chip->card->dev,
2851 		 "%s: measured %lu usecs (%lu samples)\n", __func__, t, pos);
2852 	if (t == 0) {
2853 		dev_err(chip->card->dev, "?? calculation error..\n");
2854 		goto __retry;
2855 	}
2856 	pos *= 1000;
2857 	pos = (pos / t) * 1000 + ((pos % t) * 1000) / t;
2858 	if (pos < 40000 || pos >= 60000) {
2859 		/* abnormal value. hw problem? */
2860 		dev_info(chip->card->dev, "measured clock %ld rejected\n", pos);
2861 		goto __retry;
2862 	} else if (pos > 40500 && pos < 41500)
2863 		/* first exception - 41000Hz reference clock */
2864 		chip->ac97_bus->clock = 41000;
2865 	else if (pos > 43600 && pos < 44600)
2866 		/* second exception - 44100HZ reference clock */
2867 		chip->ac97_bus->clock = 44100;
2868 	else if (pos < 47500 || pos > 48500)
2869 		/* not 48000Hz, tuning the clock.. */
2870 		chip->ac97_bus->clock = (chip->ac97_bus->clock * 48000) / pos;
2871       __end:
2872 	dev_info(chip->card->dev, "clocking to %d\n", chip->ac97_bus->clock);
2873 	snd_ac97_update_power(chip->ac97[0], AC97_PCM_FRONT_DAC_RATE, 0);
2874 }
2875 
2876 static struct snd_pci_quirk intel8x0_clock_list[] = {
2877 	SND_PCI_QUIRK(0x0e11, 0x008a, "AD1885", 41000),
2878 	SND_PCI_QUIRK(0x1014, 0x0581, "AD1981B", 48000),
2879 	SND_PCI_QUIRK(0x1028, 0x00be, "AD1885", 44100),
2880 	SND_PCI_QUIRK(0x1028, 0x0177, "AD1980", 48000),
2881 	SND_PCI_QUIRK(0x1028, 0x01ad, "AD1981B", 48000),
2882 	SND_PCI_QUIRK(0x1043, 0x80f3, "AD1985", 48000),
2883 	{ }	/* terminator */
2884 };
2885 
2886 static int intel8x0_in_clock_list(struct intel8x0 *chip)
2887 {
2888 	struct pci_dev *pci = chip->pci;
2889 	const struct snd_pci_quirk *wl;
2890 
2891 	wl = snd_pci_quirk_lookup(pci, intel8x0_clock_list);
2892 	if (!wl)
2893 		return 0;
2894 	dev_info(chip->card->dev, "white list rate for %04x:%04x is %i\n",
2895 	       pci->subsystem_vendor, pci->subsystem_device, wl->value);
2896 	chip->ac97_bus->clock = wl->value;
2897 	return 1;
2898 }
2899 
2900 static void snd_intel8x0_proc_read(struct snd_info_entry * entry,
2901 				   struct snd_info_buffer *buffer)
2902 {
2903 	struct intel8x0 *chip = entry->private_data;
2904 	unsigned int tmp;
2905 
2906 	snd_iprintf(buffer, "Intel8x0\n\n");
2907 	if (chip->device_type == DEVICE_ALI)
2908 		return;
2909 	tmp = igetdword(chip, ICHREG(GLOB_STA));
2910 	snd_iprintf(buffer, "Global control        : 0x%08x\n", igetdword(chip, ICHREG(GLOB_CNT)));
2911 	snd_iprintf(buffer, "Global status         : 0x%08x\n", tmp);
2912 	if (chip->device_type == DEVICE_INTEL_ICH4)
2913 		snd_iprintf(buffer, "SDM                   : 0x%08x\n", igetdword(chip, ICHREG(SDM)));
2914 	snd_iprintf(buffer, "AC'97 codecs ready    :");
2915 	if (tmp & chip->codec_isr_bits) {
2916 		int i;
2917 		static const char *codecs[3] = {
2918 			"primary", "secondary", "tertiary"
2919 		};
2920 		for (i = 0; i < chip->max_codecs; i++)
2921 			if (tmp & chip->codec_bit[i])
2922 				snd_iprintf(buffer, " %s", codecs[i]);
2923 	} else
2924 		snd_iprintf(buffer, " none");
2925 	snd_iprintf(buffer, "\n");
2926 	if (chip->device_type == DEVICE_INTEL_ICH4 ||
2927 	    chip->device_type == DEVICE_SIS)
2928 		snd_iprintf(buffer, "AC'97 codecs SDIN     : %i %i %i\n",
2929 			chip->ac97_sdin[0],
2930 			chip->ac97_sdin[1],
2931 			chip->ac97_sdin[2]);
2932 }
2933 
2934 static void snd_intel8x0_proc_init(struct intel8x0 *chip)
2935 {
2936 	struct snd_info_entry *entry;
2937 
2938 	if (! snd_card_proc_new(chip->card, "intel8x0", &entry))
2939 		snd_info_set_text_ops(entry, chip, snd_intel8x0_proc_read);
2940 }
2941 
2942 static int snd_intel8x0_dev_free(struct snd_device *device)
2943 {
2944 	struct intel8x0 *chip = device->device_data;
2945 	return snd_intel8x0_free(chip);
2946 }
2947 
2948 struct ich_reg_info {
2949 	unsigned int int_sta_mask;
2950 	unsigned int offset;
2951 };
2952 
2953 static unsigned int ich_codec_bits[3] = {
2954 	ICH_PCR, ICH_SCR, ICH_TCR
2955 };
2956 static unsigned int sis_codec_bits[3] = {
2957 	ICH_PCR, ICH_SCR, ICH_SIS_TCR
2958 };
2959 
2960 static int snd_intel8x0_inside_vm(struct pci_dev *pci)
2961 {
2962 	int result  = inside_vm;
2963 	char *msg   = NULL;
2964 
2965 	/* check module parameter first (override detection) */
2966 	if (result >= 0) {
2967 		msg = result ? "enable (forced) VM" : "disable (forced) VM";
2968 		goto fini;
2969 	}
2970 
2971 	/* check for known (emulated) devices */
2972 	result = 0;
2973 	if (pci->subsystem_vendor == PCI_SUBVENDOR_ID_REDHAT_QUMRANET &&
2974 	    pci->subsystem_device == PCI_SUBDEVICE_ID_QEMU) {
2975 		/* KVM emulated sound, PCI SSID: 1af4:1100 */
2976 		msg = "enable KVM";
2977 		result = 1;
2978 	} else if (pci->subsystem_vendor == 0x1ab8) {
2979 		/* Parallels VM emulated sound, PCI SSID: 1ab8:xxxx */
2980 		msg = "enable Parallels VM";
2981 		result = 1;
2982 	}
2983 
2984 fini:
2985 	if (msg != NULL)
2986 		dev_info(&pci->dev, "%s optimization\n", msg);
2987 
2988 	return result;
2989 }
2990 
2991 static int snd_intel8x0_create(struct snd_card *card,
2992 			       struct pci_dev *pci,
2993 			       unsigned long device_type,
2994 			       struct intel8x0 **r_intel8x0)
2995 {
2996 	struct intel8x0 *chip;
2997 	int err;
2998 	unsigned int i;
2999 	unsigned int int_sta_masks;
3000 	struct ichdev *ichdev;
3001 	static struct snd_device_ops ops = {
3002 		.dev_free =	snd_intel8x0_dev_free,
3003 	};
3004 
3005 	static unsigned int bdbars[] = {
3006 		3, /* DEVICE_INTEL */
3007 		6, /* DEVICE_INTEL_ICH4 */
3008 		3, /* DEVICE_SIS */
3009 		6, /* DEVICE_ALI */
3010 		4, /* DEVICE_NFORCE */
3011 	};
3012 	static struct ich_reg_info intel_regs[6] = {
3013 		{ ICH_PIINT, 0 },
3014 		{ ICH_POINT, 0x10 },
3015 		{ ICH_MCINT, 0x20 },
3016 		{ ICH_M2INT, 0x40 },
3017 		{ ICH_P2INT, 0x50 },
3018 		{ ICH_SPINT, 0x60 },
3019 	};
3020 	static struct ich_reg_info nforce_regs[4] = {
3021 		{ ICH_PIINT, 0 },
3022 		{ ICH_POINT, 0x10 },
3023 		{ ICH_MCINT, 0x20 },
3024 		{ ICH_NVSPINT, 0x70 },
3025 	};
3026 	static struct ich_reg_info ali_regs[6] = {
3027 		{ ALI_INT_PCMIN, 0x40 },
3028 		{ ALI_INT_PCMOUT, 0x50 },
3029 		{ ALI_INT_MICIN, 0x60 },
3030 		{ ALI_INT_CODECSPDIFOUT, 0x70 },
3031 		{ ALI_INT_SPDIFIN, 0xa0 },
3032 		{ ALI_INT_SPDIFOUT, 0xb0 },
3033 	};
3034 	struct ich_reg_info *tbl;
3035 
3036 	*r_intel8x0 = NULL;
3037 
3038 	if ((err = pci_enable_device(pci)) < 0)
3039 		return err;
3040 
3041 	chip = kzalloc(sizeof(*chip), GFP_KERNEL);
3042 	if (chip == NULL) {
3043 		pci_disable_device(pci);
3044 		return -ENOMEM;
3045 	}
3046 	spin_lock_init(&chip->reg_lock);
3047 	chip->device_type = device_type;
3048 	chip->card = card;
3049 	chip->pci = pci;
3050 	chip->irq = -1;
3051 
3052 	/* module parameters */
3053 	chip->buggy_irq = buggy_irq;
3054 	chip->buggy_semaphore = buggy_semaphore;
3055 	if (xbox)
3056 		chip->xbox = 1;
3057 
3058 	chip->inside_vm = snd_intel8x0_inside_vm(pci);
3059 
3060 	if (pci->vendor == PCI_VENDOR_ID_INTEL &&
3061 	    pci->device == PCI_DEVICE_ID_INTEL_440MX)
3062 		chip->fix_nocache = 1; /* enable workaround */
3063 
3064 	if ((err = pci_request_regions(pci, card->shortname)) < 0) {
3065 		kfree(chip);
3066 		pci_disable_device(pci);
3067 		return err;
3068 	}
3069 
3070 	if (device_type == DEVICE_ALI) {
3071 		/* ALI5455 has no ac97 region */
3072 		chip->bmaddr = pci_iomap(pci, 0, 0);
3073 		goto port_inited;
3074 	}
3075 
3076 	if (pci_resource_flags(pci, 2) & IORESOURCE_MEM) /* ICH4 and Nforce */
3077 		chip->addr = pci_iomap(pci, 2, 0);
3078 	else
3079 		chip->addr = pci_iomap(pci, 0, 0);
3080 	if (!chip->addr) {
3081 		dev_err(card->dev, "AC'97 space ioremap problem\n");
3082 		snd_intel8x0_free(chip);
3083 		return -EIO;
3084 	}
3085 	if (pci_resource_flags(pci, 3) & IORESOURCE_MEM) /* ICH4 */
3086 		chip->bmaddr = pci_iomap(pci, 3, 0);
3087 	else
3088 		chip->bmaddr = pci_iomap(pci, 1, 0);
3089 
3090  port_inited:
3091 	if (!chip->bmaddr) {
3092 		dev_err(card->dev, "Controller space ioremap problem\n");
3093 		snd_intel8x0_free(chip);
3094 		return -EIO;
3095 	}
3096 	chip->bdbars_count = bdbars[device_type];
3097 
3098 	/* initialize offsets */
3099 	switch (device_type) {
3100 	case DEVICE_NFORCE:
3101 		tbl = nforce_regs;
3102 		break;
3103 	case DEVICE_ALI:
3104 		tbl = ali_regs;
3105 		break;
3106 	default:
3107 		tbl = intel_regs;
3108 		break;
3109 	}
3110 	for (i = 0; i < chip->bdbars_count; i++) {
3111 		ichdev = &chip->ichd[i];
3112 		ichdev->ichd = i;
3113 		ichdev->reg_offset = tbl[i].offset;
3114 		ichdev->int_sta_mask = tbl[i].int_sta_mask;
3115 		if (device_type == DEVICE_SIS) {
3116 			/* SiS 7012 swaps the registers */
3117 			ichdev->roff_sr = ICH_REG_OFF_PICB;
3118 			ichdev->roff_picb = ICH_REG_OFF_SR;
3119 		} else {
3120 			ichdev->roff_sr = ICH_REG_OFF_SR;
3121 			ichdev->roff_picb = ICH_REG_OFF_PICB;
3122 		}
3123 		if (device_type == DEVICE_ALI)
3124 			ichdev->ali_slot = (ichdev->reg_offset - 0x40) / 0x10;
3125 		/* SIS7012 handles the pcm data in bytes, others are in samples */
3126 		ichdev->pos_shift = (device_type == DEVICE_SIS) ? 0 : 1;
3127 	}
3128 
3129 	/* allocate buffer descriptor lists */
3130 	/* the start of each lists must be aligned to 8 bytes */
3131 	if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci),
3132 				chip->bdbars_count * sizeof(u32) * ICH_MAX_FRAGS * 2,
3133 				&chip->bdbars) < 0) {
3134 		snd_intel8x0_free(chip);
3135 		dev_err(card->dev, "cannot allocate buffer descriptors\n");
3136 		return -ENOMEM;
3137 	}
3138 	/* tables must be aligned to 8 bytes here, but the kernel pages
3139 	   are much bigger, so we don't care (on i386) */
3140 	/* workaround for 440MX */
3141 	if (chip->fix_nocache)
3142 		fill_nocache(chip->bdbars.area, chip->bdbars.bytes, 1);
3143 	int_sta_masks = 0;
3144 	for (i = 0; i < chip->bdbars_count; i++) {
3145 		ichdev = &chip->ichd[i];
3146 		ichdev->bdbar = ((u32 *)chip->bdbars.area) +
3147 			(i * ICH_MAX_FRAGS * 2);
3148 		ichdev->bdbar_addr = chip->bdbars.addr +
3149 			(i * sizeof(u32) * ICH_MAX_FRAGS * 2);
3150 		int_sta_masks |= ichdev->int_sta_mask;
3151 	}
3152 	chip->int_sta_reg = device_type == DEVICE_ALI ?
3153 		ICH_REG_ALI_INTERRUPTSR : ICH_REG_GLOB_STA;
3154 	chip->int_sta_mask = int_sta_masks;
3155 
3156 	pci_set_master(pci);
3157 
3158 	switch(chip->device_type) {
3159 	case DEVICE_INTEL_ICH4:
3160 		/* ICH4 can have three codecs */
3161 		chip->max_codecs = 3;
3162 		chip->codec_bit = ich_codec_bits;
3163 		chip->codec_ready_bits = ICH_PRI | ICH_SRI | ICH_TRI;
3164 		break;
3165 	case DEVICE_SIS:
3166 		/* recent SIS7012 can have three codecs */
3167 		chip->max_codecs = 3;
3168 		chip->codec_bit = sis_codec_bits;
3169 		chip->codec_ready_bits = ICH_PRI | ICH_SRI | ICH_SIS_TRI;
3170 		break;
3171 	default:
3172 		/* others up to two codecs */
3173 		chip->max_codecs = 2;
3174 		chip->codec_bit = ich_codec_bits;
3175 		chip->codec_ready_bits = ICH_PRI | ICH_SRI;
3176 		break;
3177 	}
3178 	for (i = 0; i < chip->max_codecs; i++)
3179 		chip->codec_isr_bits |= chip->codec_bit[i];
3180 
3181 	if ((err = snd_intel8x0_chip_init(chip, 1)) < 0) {
3182 		snd_intel8x0_free(chip);
3183 		return err;
3184 	}
3185 
3186 	/* request irq after initializaing int_sta_mask, etc */
3187 	if (request_irq(pci->irq, snd_intel8x0_interrupt,
3188 			IRQF_SHARED, KBUILD_MODNAME, chip)) {
3189 		dev_err(card->dev, "unable to grab IRQ %d\n", pci->irq);
3190 		snd_intel8x0_free(chip);
3191 		return -EBUSY;
3192 	}
3193 	chip->irq = pci->irq;
3194 
3195 	if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
3196 		snd_intel8x0_free(chip);
3197 		return err;
3198 	}
3199 
3200 	*r_intel8x0 = chip;
3201 	return 0;
3202 }
3203 
3204 static struct shortname_table {
3205 	unsigned int id;
3206 	const char *s;
3207 } shortnames[] = {
3208 	{ PCI_DEVICE_ID_INTEL_82801AA_5, "Intel 82801AA-ICH" },
3209 	{ PCI_DEVICE_ID_INTEL_82801AB_5, "Intel 82901AB-ICH0" },
3210 	{ PCI_DEVICE_ID_INTEL_82801BA_4, "Intel 82801BA-ICH2" },
3211 	{ PCI_DEVICE_ID_INTEL_440MX, "Intel 440MX" },
3212 	{ PCI_DEVICE_ID_INTEL_82801CA_5, "Intel 82801CA-ICH3" },
3213 	{ PCI_DEVICE_ID_INTEL_82801DB_5, "Intel 82801DB-ICH4" },
3214 	{ PCI_DEVICE_ID_INTEL_82801EB_5, "Intel ICH5" },
3215 	{ PCI_DEVICE_ID_INTEL_ESB_5, "Intel 6300ESB" },
3216 	{ PCI_DEVICE_ID_INTEL_ICH6_18, "Intel ICH6" },
3217 	{ PCI_DEVICE_ID_INTEL_ICH7_20, "Intel ICH7" },
3218 	{ PCI_DEVICE_ID_INTEL_ESB2_14, "Intel ESB2" },
3219 	{ PCI_DEVICE_ID_SI_7012, "SiS SI7012" },
3220 	{ PCI_DEVICE_ID_NVIDIA_MCP1_AUDIO, "NVidia nForce" },
3221 	{ PCI_DEVICE_ID_NVIDIA_MCP2_AUDIO, "NVidia nForce2" },
3222 	{ PCI_DEVICE_ID_NVIDIA_MCP3_AUDIO, "NVidia nForce3" },
3223 	{ PCI_DEVICE_ID_NVIDIA_CK8S_AUDIO, "NVidia CK8S" },
3224 	{ PCI_DEVICE_ID_NVIDIA_CK804_AUDIO, "NVidia CK804" },
3225 	{ PCI_DEVICE_ID_NVIDIA_CK8_AUDIO, "NVidia CK8" },
3226 	{ 0x003a, "NVidia MCP04" },
3227 	{ 0x746d, "AMD AMD8111" },
3228 	{ 0x7445, "AMD AMD768" },
3229 	{ 0x5455, "ALi M5455" },
3230 	{ 0, NULL },
3231 };
3232 
3233 static struct snd_pci_quirk spdif_aclink_defaults[] = {
3234 	SND_PCI_QUIRK(0x147b, 0x1c1a, "ASUS KN8", 1),
3235 	{ } /* end */
3236 };
3237 
3238 /* look up white/black list for SPDIF over ac-link */
3239 static int check_default_spdif_aclink(struct pci_dev *pci)
3240 {
3241 	const struct snd_pci_quirk *w;
3242 
3243 	w = snd_pci_quirk_lookup(pci, spdif_aclink_defaults);
3244 	if (w) {
3245 		if (w->value)
3246 			dev_dbg(&pci->dev,
3247 				"Using SPDIF over AC-Link for %s\n",
3248 				    snd_pci_quirk_name(w));
3249 		else
3250 			dev_dbg(&pci->dev,
3251 				"Using integrated SPDIF DMA for %s\n",
3252 				    snd_pci_quirk_name(w));
3253 		return w->value;
3254 	}
3255 	return 0;
3256 }
3257 
3258 static int snd_intel8x0_probe(struct pci_dev *pci,
3259 			      const struct pci_device_id *pci_id)
3260 {
3261 	struct snd_card *card;
3262 	struct intel8x0 *chip;
3263 	int err;
3264 	struct shortname_table *name;
3265 
3266 	err = snd_card_new(&pci->dev, index, id, THIS_MODULE, 0, &card);
3267 	if (err < 0)
3268 		return err;
3269 
3270 	if (spdif_aclink < 0)
3271 		spdif_aclink = check_default_spdif_aclink(pci);
3272 
3273 	strcpy(card->driver, "ICH");
3274 	if (!spdif_aclink) {
3275 		switch (pci_id->driver_data) {
3276 		case DEVICE_NFORCE:
3277 			strcpy(card->driver, "NFORCE");
3278 			break;
3279 		case DEVICE_INTEL_ICH4:
3280 			strcpy(card->driver, "ICH4");
3281 		}
3282 	}
3283 
3284 	strcpy(card->shortname, "Intel ICH");
3285 	for (name = shortnames; name->id; name++) {
3286 		if (pci->device == name->id) {
3287 			strcpy(card->shortname, name->s);
3288 			break;
3289 		}
3290 	}
3291 
3292 	if (buggy_irq < 0) {
3293 		/* some Nforce[2] and ICH boards have problems with IRQ handling.
3294 		 * Needs to return IRQ_HANDLED for unknown irqs.
3295 		 */
3296 		if (pci_id->driver_data == DEVICE_NFORCE)
3297 			buggy_irq = 1;
3298 		else
3299 			buggy_irq = 0;
3300 	}
3301 
3302 	if ((err = snd_intel8x0_create(card, pci, pci_id->driver_data,
3303 				       &chip)) < 0) {
3304 		snd_card_free(card);
3305 		return err;
3306 	}
3307 	card->private_data = chip;
3308 
3309 	if ((err = snd_intel8x0_mixer(chip, ac97_clock, ac97_quirk)) < 0) {
3310 		snd_card_free(card);
3311 		return err;
3312 	}
3313 	if ((err = snd_intel8x0_pcm(chip)) < 0) {
3314 		snd_card_free(card);
3315 		return err;
3316 	}
3317 
3318 	snd_intel8x0_proc_init(chip);
3319 
3320 	snprintf(card->longname, sizeof(card->longname),
3321 		 "%s with %s at irq %i", card->shortname,
3322 		 snd_ac97_get_short_name(chip->ac97[0]), chip->irq);
3323 
3324 	if (ac97_clock == 0 || ac97_clock == 1) {
3325 		if (ac97_clock == 0) {
3326 			if (intel8x0_in_clock_list(chip) == 0)
3327 				intel8x0_measure_ac97_clock(chip);
3328 		} else {
3329 			intel8x0_measure_ac97_clock(chip);
3330 		}
3331 	}
3332 
3333 	if ((err = snd_card_register(card)) < 0) {
3334 		snd_card_free(card);
3335 		return err;
3336 	}
3337 	pci_set_drvdata(pci, card);
3338 	return 0;
3339 }
3340 
3341 static void snd_intel8x0_remove(struct pci_dev *pci)
3342 {
3343 	snd_card_free(pci_get_drvdata(pci));
3344 }
3345 
3346 static struct pci_driver intel8x0_driver = {
3347 	.name = KBUILD_MODNAME,
3348 	.id_table = snd_intel8x0_ids,
3349 	.probe = snd_intel8x0_probe,
3350 	.remove = snd_intel8x0_remove,
3351 	.driver = {
3352 		.pm = INTEL8X0_PM_OPS,
3353 	},
3354 };
3355 
3356 module_pci_driver(intel8x0_driver);
3357