xref: /openbmc/linux/sound/pci/intel8x0.c (revision b6dcefde)
1 /*
2  *   ALSA driver for Intel ICH (i8x0) chipsets
3  *
4  *	Copyright (c) 2000 Jaroslav Kysela <perex@perex.cz>
5  *
6  *
7  *   This code also contains alpha support for SiS 735 chipsets provided
8  *   by Mike Pieper <mptei@users.sourceforge.net>. We have no datasheet
9  *   for SiS735, so the code is not fully functional.
10  *
11  *
12  *   This program is free software; you can redistribute it and/or modify
13  *   it under the terms of the GNU General Public License as published by
14  *   the Free Software Foundation; either version 2 of the License, or
15  *   (at your option) any later version.
16  *
17  *   This program is distributed in the hope that it will be useful,
18  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
19  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
20  *   GNU General Public License for more details.
21  *
22  *   You should have received a copy of the GNU General Public License
23  *   along with this program; if not, write to the Free Software
24  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
25 
26  *
27  */
28 
29 #include <asm/io.h>
30 #include <linux/delay.h>
31 #include <linux/interrupt.h>
32 #include <linux/init.h>
33 #include <linux/pci.h>
34 #include <linux/slab.h>
35 #include <linux/moduleparam.h>
36 #include <sound/core.h>
37 #include <sound/pcm.h>
38 #include <sound/ac97_codec.h>
39 #include <sound/info.h>
40 #include <sound/initval.h>
41 /* for 440MX workaround */
42 #include <asm/pgtable.h>
43 #include <asm/cacheflush.h>
44 
45 MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
46 MODULE_DESCRIPTION("Intel 82801AA,82901AB,i810,i820,i830,i840,i845,MX440; SiS 7012; Ali 5455");
47 MODULE_LICENSE("GPL");
48 MODULE_SUPPORTED_DEVICE("{{Intel,82801AA-ICH},"
49 		"{Intel,82901AB-ICH0},"
50 		"{Intel,82801BA-ICH2},"
51 		"{Intel,82801CA-ICH3},"
52 		"{Intel,82801DB-ICH4},"
53 		"{Intel,ICH5},"
54 		"{Intel,ICH6},"
55 		"{Intel,ICH7},"
56 		"{Intel,6300ESB},"
57 		"{Intel,ESB2},"
58 		"{Intel,MX440},"
59 		"{SiS,SI7012},"
60 		"{NVidia,nForce Audio},"
61 		"{NVidia,nForce2 Audio},"
62 		"{NVidia,nForce3 Audio},"
63 		"{NVidia,MCP04},"
64 		"{NVidia,MCP501},"
65 		"{NVidia,CK804},"
66 		"{NVidia,CK8},"
67 		"{NVidia,CK8S},"
68 		"{AMD,AMD768},"
69 		"{AMD,AMD8111},"
70 	        "{ALI,M5455}}");
71 
72 static int index = SNDRV_DEFAULT_IDX1;	/* Index 0-MAX */
73 static char *id = SNDRV_DEFAULT_STR1;	/* ID for this card */
74 static int ac97_clock;
75 static char *ac97_quirk;
76 static int buggy_semaphore;
77 static int buggy_irq = -1; /* auto-check */
78 static int xbox;
79 static int spdif_aclink = -1;
80 
81 module_param(index, int, 0444);
82 MODULE_PARM_DESC(index, "Index value for Intel i8x0 soundcard.");
83 module_param(id, charp, 0444);
84 MODULE_PARM_DESC(id, "ID string for Intel i8x0 soundcard.");
85 module_param(ac97_clock, int, 0444);
86 MODULE_PARM_DESC(ac97_clock, "AC'97 codec clock (0 = whitelist + auto-detect, 1 = force autodetect).");
87 module_param(ac97_quirk, charp, 0444);
88 MODULE_PARM_DESC(ac97_quirk, "AC'97 workaround for strange hardware.");
89 module_param(buggy_semaphore, bool, 0444);
90 MODULE_PARM_DESC(buggy_semaphore, "Enable workaround for hardwares with problematic codec semaphores.");
91 module_param(buggy_irq, bool, 0444);
92 MODULE_PARM_DESC(buggy_irq, "Enable workaround for buggy interrupts on some motherboards.");
93 module_param(xbox, bool, 0444);
94 MODULE_PARM_DESC(xbox, "Set to 1 for Xbox, if you have problems with the AC'97 codec detection.");
95 module_param(spdif_aclink, int, 0444);
96 MODULE_PARM_DESC(spdif_aclink, "S/PDIF over AC-link.");
97 
98 /* just for backward compatibility */
99 static int enable;
100 module_param(enable, bool, 0444);
101 static int joystick;
102 module_param(joystick, int, 0444);
103 
104 /*
105  *  Direct registers
106  */
107 enum { DEVICE_INTEL, DEVICE_INTEL_ICH4, DEVICE_SIS, DEVICE_ALI, DEVICE_NFORCE };
108 
109 #define ICHREG(x) ICH_REG_##x
110 
111 #define DEFINE_REGSET(name,base) \
112 enum { \
113 	ICH_REG_##name##_BDBAR	= base + 0x0,	/* dword - buffer descriptor list base address */ \
114 	ICH_REG_##name##_CIV	= base + 0x04,	/* byte - current index value */ \
115 	ICH_REG_##name##_LVI	= base + 0x05,	/* byte - last valid index */ \
116 	ICH_REG_##name##_SR	= base + 0x06,	/* byte - status register */ \
117 	ICH_REG_##name##_PICB	= base + 0x08,	/* word - position in current buffer */ \
118 	ICH_REG_##name##_PIV	= base + 0x0a,	/* byte - prefetched index value */ \
119 	ICH_REG_##name##_CR	= base + 0x0b,	/* byte - control register */ \
120 };
121 
122 /* busmaster blocks */
123 DEFINE_REGSET(OFF, 0);		/* offset */
124 DEFINE_REGSET(PI, 0x00);	/* PCM in */
125 DEFINE_REGSET(PO, 0x10);	/* PCM out */
126 DEFINE_REGSET(MC, 0x20);	/* Mic in */
127 
128 /* ICH4 busmaster blocks */
129 DEFINE_REGSET(MC2, 0x40);	/* Mic in 2 */
130 DEFINE_REGSET(PI2, 0x50);	/* PCM in 2 */
131 DEFINE_REGSET(SP, 0x60);	/* SPDIF out */
132 
133 /* values for each busmaster block */
134 
135 /* LVI */
136 #define ICH_REG_LVI_MASK		0x1f
137 
138 /* SR */
139 #define ICH_FIFOE			0x10	/* FIFO error */
140 #define ICH_BCIS			0x08	/* buffer completion interrupt status */
141 #define ICH_LVBCI			0x04	/* last valid buffer completion interrupt */
142 #define ICH_CELV			0x02	/* current equals last valid */
143 #define ICH_DCH				0x01	/* DMA controller halted */
144 
145 /* PIV */
146 #define ICH_REG_PIV_MASK		0x1f	/* mask */
147 
148 /* CR */
149 #define ICH_IOCE			0x10	/* interrupt on completion enable */
150 #define ICH_FEIE			0x08	/* fifo error interrupt enable */
151 #define ICH_LVBIE			0x04	/* last valid buffer interrupt enable */
152 #define ICH_RESETREGS			0x02	/* reset busmaster registers */
153 #define ICH_STARTBM			0x01	/* start busmaster operation */
154 
155 
156 /* global block */
157 #define ICH_REG_GLOB_CNT		0x2c	/* dword - global control */
158 #define   ICH_PCM_SPDIF_MASK	0xc0000000	/* s/pdif pcm slot mask (ICH4) */
159 #define   ICH_PCM_SPDIF_NONE	0x00000000	/* reserved - undefined */
160 #define   ICH_PCM_SPDIF_78	0x40000000	/* s/pdif pcm on slots 7&8 */
161 #define   ICH_PCM_SPDIF_69	0x80000000	/* s/pdif pcm on slots 6&9 */
162 #define   ICH_PCM_SPDIF_1011	0xc0000000	/* s/pdif pcm on slots 10&11 */
163 #define   ICH_PCM_20BIT		0x00400000	/* 20-bit samples (ICH4) */
164 #define   ICH_PCM_246_MASK	0x00300000	/* chan mask (not all chips) */
165 #define   ICH_PCM_8		0x00300000      /* 8 channels (not all chips) */
166 #define   ICH_PCM_6		0x00200000	/* 6 channels (not all chips) */
167 #define   ICH_PCM_4		0x00100000	/* 4 channels (not all chips) */
168 #define   ICH_PCM_2		0x00000000	/* 2 channels (stereo) */
169 #define   ICH_SIS_PCM_246_MASK	0x000000c0	/* 6 channels (SIS7012) */
170 #define   ICH_SIS_PCM_6		0x00000080	/* 6 channels (SIS7012) */
171 #define   ICH_SIS_PCM_4		0x00000040	/* 4 channels (SIS7012) */
172 #define   ICH_SIS_PCM_2		0x00000000	/* 2 channels (SIS7012) */
173 #define   ICH_TRIE		0x00000040	/* tertiary resume interrupt enable */
174 #define   ICH_SRIE		0x00000020	/* secondary resume interrupt enable */
175 #define   ICH_PRIE		0x00000010	/* primary resume interrupt enable */
176 #define   ICH_ACLINK		0x00000008	/* AClink shut off */
177 #define   ICH_AC97WARM		0x00000004	/* AC'97 warm reset */
178 #define   ICH_AC97COLD		0x00000002	/* AC'97 cold reset */
179 #define   ICH_GIE		0x00000001	/* GPI interrupt enable */
180 #define ICH_REG_GLOB_STA		0x30	/* dword - global status */
181 #define   ICH_TRI		0x20000000	/* ICH4: tertiary (AC_SDIN2) resume interrupt */
182 #define   ICH_TCR		0x10000000	/* ICH4: tertiary (AC_SDIN2) codec ready */
183 #define   ICH_BCS		0x08000000	/* ICH4: bit clock stopped */
184 #define   ICH_SPINT		0x04000000	/* ICH4: S/PDIF interrupt */
185 #define   ICH_P2INT		0x02000000	/* ICH4: PCM2-In interrupt */
186 #define   ICH_M2INT		0x01000000	/* ICH4: Mic2-In interrupt */
187 #define   ICH_SAMPLE_CAP	0x00c00000	/* ICH4: sample capability bits (RO) */
188 #define   ICH_SAMPLE_16_20	0x00400000	/* ICH4: 16- and 20-bit samples */
189 #define   ICH_MULTICHAN_CAP	0x00300000	/* ICH4: multi-channel capability bits (RO) */
190 #define   ICH_SIS_TRI		0x00080000	/* SIS: tertiary resume irq */
191 #define   ICH_SIS_TCR		0x00040000	/* SIS: tertiary codec ready */
192 #define   ICH_MD3		0x00020000	/* modem power down semaphore */
193 #define   ICH_AD3		0x00010000	/* audio power down semaphore */
194 #define   ICH_RCS		0x00008000	/* read completion status */
195 #define   ICH_BIT3		0x00004000	/* bit 3 slot 12 */
196 #define   ICH_BIT2		0x00002000	/* bit 2 slot 12 */
197 #define   ICH_BIT1		0x00001000	/* bit 1 slot 12 */
198 #define   ICH_SRI		0x00000800	/* secondary (AC_SDIN1) resume interrupt */
199 #define   ICH_PRI		0x00000400	/* primary (AC_SDIN0) resume interrupt */
200 #define   ICH_SCR		0x00000200	/* secondary (AC_SDIN1) codec ready */
201 #define   ICH_PCR		0x00000100	/* primary (AC_SDIN0) codec ready */
202 #define   ICH_MCINT		0x00000080	/* MIC capture interrupt */
203 #define   ICH_POINT		0x00000040	/* playback interrupt */
204 #define   ICH_PIINT		0x00000020	/* capture interrupt */
205 #define   ICH_NVSPINT		0x00000010	/* nforce spdif interrupt */
206 #define   ICH_MOINT		0x00000004	/* modem playback interrupt */
207 #define   ICH_MIINT		0x00000002	/* modem capture interrupt */
208 #define   ICH_GSCI		0x00000001	/* GPI status change interrupt */
209 #define ICH_REG_ACC_SEMA		0x34	/* byte - codec write semaphore */
210 #define   ICH_CAS		0x01		/* codec access semaphore */
211 #define ICH_REG_SDM		0x80
212 #define   ICH_DI2L_MASK		0x000000c0	/* PCM In 2, Mic In 2 data in line */
213 #define   ICH_DI2L_SHIFT	6
214 #define   ICH_DI1L_MASK		0x00000030	/* PCM In 1, Mic In 1 data in line */
215 #define   ICH_DI1L_SHIFT	4
216 #define   ICH_SE		0x00000008	/* steer enable */
217 #define   ICH_LDI_MASK		0x00000003	/* last codec read data input */
218 
219 #define ICH_MAX_FRAGS		32		/* max hw frags */
220 
221 
222 /*
223  * registers for Ali5455
224  */
225 
226 /* ALi 5455 busmaster blocks */
227 DEFINE_REGSET(AL_PI, 0x40);	/* ALi PCM in */
228 DEFINE_REGSET(AL_PO, 0x50);	/* Ali PCM out */
229 DEFINE_REGSET(AL_MC, 0x60);	/* Ali Mic in */
230 DEFINE_REGSET(AL_CDC_SPO, 0x70);	/* Ali Codec SPDIF out */
231 DEFINE_REGSET(AL_CENTER, 0x80);		/* Ali center out */
232 DEFINE_REGSET(AL_LFE, 0x90);		/* Ali center out */
233 DEFINE_REGSET(AL_CLR_SPI, 0xa0);	/* Ali Controller SPDIF in */
234 DEFINE_REGSET(AL_CLR_SPO, 0xb0);	/* Ali Controller SPDIF out */
235 DEFINE_REGSET(AL_I2S, 0xc0);	/* Ali I2S in */
236 DEFINE_REGSET(AL_PI2, 0xd0);	/* Ali PCM2 in */
237 DEFINE_REGSET(AL_MC2, 0xe0);	/* Ali Mic2 in */
238 
239 enum {
240 	ICH_REG_ALI_SCR = 0x00,		/* System Control Register */
241 	ICH_REG_ALI_SSR = 0x04,		/* System Status Register  */
242 	ICH_REG_ALI_DMACR = 0x08,	/* DMA Control Register    */
243 	ICH_REG_ALI_FIFOCR1 = 0x0c,	/* FIFO Control Register 1  */
244 	ICH_REG_ALI_INTERFACECR = 0x10,	/* Interface Control Register */
245 	ICH_REG_ALI_INTERRUPTCR = 0x14,	/* Interrupt control Register */
246 	ICH_REG_ALI_INTERRUPTSR = 0x18,	/* Interrupt  Status Register */
247 	ICH_REG_ALI_FIFOCR2 = 0x1c,	/* FIFO Control Register 2   */
248 	ICH_REG_ALI_CPR = 0x20,		/* Command Port Register     */
249 	ICH_REG_ALI_CPR_ADDR = 0x22,	/* ac97 addr write */
250 	ICH_REG_ALI_SPR = 0x24,		/* Status Port Register      */
251 	ICH_REG_ALI_SPR_ADDR = 0x26,	/* ac97 addr read */
252 	ICH_REG_ALI_FIFOCR3 = 0x2c,	/* FIFO Control Register 3  */
253 	ICH_REG_ALI_TTSR = 0x30,	/* Transmit Tag Slot Register */
254 	ICH_REG_ALI_RTSR = 0x34,	/* Receive Tag Slot  Register */
255 	ICH_REG_ALI_CSPSR = 0x38,	/* Command/Status Port Status Register */
256 	ICH_REG_ALI_CAS = 0x3c,		/* Codec Write Semaphore Register */
257 	ICH_REG_ALI_HWVOL = 0xf0,	/* hardware volume control/status */
258 	ICH_REG_ALI_I2SCR = 0xf4,	/* I2S control/status */
259 	ICH_REG_ALI_SPDIFCSR = 0xf8,	/* spdif channel status register  */
260 	ICH_REG_ALI_SPDIFICS = 0xfc,	/* spdif interface control/status  */
261 };
262 
263 #define ALI_CAS_SEM_BUSY	0x80000000
264 #define ALI_CPR_ADDR_SECONDARY	0x100
265 #define ALI_CPR_ADDR_READ	0x80
266 #define ALI_CSPSR_CODEC_READY	0x08
267 #define ALI_CSPSR_READ_OK	0x02
268 #define ALI_CSPSR_WRITE_OK	0x01
269 
270 /* interrupts for the whole chip by interrupt status register finish */
271 
272 #define ALI_INT_MICIN2		(1<<26)
273 #define ALI_INT_PCMIN2		(1<<25)
274 #define ALI_INT_I2SIN		(1<<24)
275 #define ALI_INT_SPDIFOUT	(1<<23)	/* controller spdif out INTERRUPT */
276 #define ALI_INT_SPDIFIN		(1<<22)
277 #define ALI_INT_LFEOUT		(1<<21)
278 #define ALI_INT_CENTEROUT	(1<<20)
279 #define ALI_INT_CODECSPDIFOUT	(1<<19)
280 #define ALI_INT_MICIN		(1<<18)
281 #define ALI_INT_PCMOUT		(1<<17)
282 #define ALI_INT_PCMIN		(1<<16)
283 #define ALI_INT_CPRAIS		(1<<7)	/* command port available */
284 #define ALI_INT_SPRAIS		(1<<5)	/* status port available */
285 #define ALI_INT_GPIO		(1<<1)
286 #define ALI_INT_MASK		(ALI_INT_SPDIFOUT|ALI_INT_CODECSPDIFOUT|\
287 				 ALI_INT_MICIN|ALI_INT_PCMOUT|ALI_INT_PCMIN)
288 
289 #define ICH_ALI_SC_RESET	(1<<31)	/* master reset */
290 #define ICH_ALI_SC_AC97_DBL	(1<<30)
291 #define ICH_ALI_SC_CODEC_SPDF	(3<<20)	/* 1=7/8, 2=6/9, 3=10/11 */
292 #define ICH_ALI_SC_IN_BITS	(3<<18)
293 #define ICH_ALI_SC_OUT_BITS	(3<<16)
294 #define ICH_ALI_SC_6CH_CFG	(3<<14)
295 #define ICH_ALI_SC_PCM_4	(1<<8)
296 #define ICH_ALI_SC_PCM_6	(2<<8)
297 #define ICH_ALI_SC_PCM_246_MASK	(3<<8)
298 
299 #define ICH_ALI_SS_SEC_ID	(3<<5)
300 #define ICH_ALI_SS_PRI_ID	(3<<3)
301 
302 #define ICH_ALI_IF_AC97SP	(1<<21)
303 #define ICH_ALI_IF_MC		(1<<20)
304 #define ICH_ALI_IF_PI		(1<<19)
305 #define ICH_ALI_IF_MC2		(1<<18)
306 #define ICH_ALI_IF_PI2		(1<<17)
307 #define ICH_ALI_IF_LINE_SRC	(1<<15)	/* 0/1 = slot 3/6 */
308 #define ICH_ALI_IF_MIC_SRC	(1<<14)	/* 0/1 = slot 3/6 */
309 #define ICH_ALI_IF_SPDF_SRC	(3<<12)	/* 00 = PCM, 01 = AC97-in, 10 = spdif-in, 11 = i2s */
310 #define ICH_ALI_IF_AC97_OUT	(3<<8)	/* 00 = PCM, 10 = spdif-in, 11 = i2s */
311 #define ICH_ALI_IF_PO_SPDF	(1<<3)
312 #define ICH_ALI_IF_PO		(1<<1)
313 
314 /*
315  *
316  */
317 
318 enum {
319 	ICHD_PCMIN,
320 	ICHD_PCMOUT,
321 	ICHD_MIC,
322 	ICHD_MIC2,
323 	ICHD_PCM2IN,
324 	ICHD_SPBAR,
325 	ICHD_LAST = ICHD_SPBAR
326 };
327 enum {
328 	NVD_PCMIN,
329 	NVD_PCMOUT,
330 	NVD_MIC,
331 	NVD_SPBAR,
332 	NVD_LAST = NVD_SPBAR
333 };
334 enum {
335 	ALID_PCMIN,
336 	ALID_PCMOUT,
337 	ALID_MIC,
338 	ALID_AC97SPDIFOUT,
339 	ALID_SPDIFIN,
340 	ALID_SPDIFOUT,
341 	ALID_LAST = ALID_SPDIFOUT
342 };
343 
344 #define get_ichdev(substream) (substream->runtime->private_data)
345 
346 struct ichdev {
347 	unsigned int ichd;			/* ich device number */
348 	unsigned long reg_offset;		/* offset to bmaddr */
349 	u32 *bdbar;				/* CPU address (32bit) */
350 	unsigned int bdbar_addr;		/* PCI bus address (32bit) */
351 	struct snd_pcm_substream *substream;
352 	unsigned int physbuf;			/* physical address (32bit) */
353         unsigned int size;
354         unsigned int fragsize;
355         unsigned int fragsize1;
356         unsigned int position;
357 	unsigned int pos_shift;
358 	unsigned int last_pos;
359         int frags;
360         int lvi;
361         int lvi_frag;
362 	int civ;
363 	int ack;
364 	int ack_reload;
365 	unsigned int ack_bit;
366 	unsigned int roff_sr;
367 	unsigned int roff_picb;
368 	unsigned int int_sta_mask;		/* interrupt status mask */
369 	unsigned int ali_slot;			/* ALI DMA slot */
370 	struct ac97_pcm *pcm;
371 	int pcm_open_flag;
372 	unsigned int page_attr_changed: 1;
373 	unsigned int suspended: 1;
374 };
375 
376 struct intel8x0 {
377 	unsigned int device_type;
378 
379 	int irq;
380 
381 	void __iomem *addr;
382 	void __iomem *bmaddr;
383 
384 	struct pci_dev *pci;
385 	struct snd_card *card;
386 
387 	int pcm_devs;
388 	struct snd_pcm *pcm[6];
389 	struct ichdev ichd[6];
390 
391 	unsigned multi4: 1,
392 		 multi6: 1,
393 		 multi8 :1,
394 		 dra: 1,
395 		 smp20bit: 1;
396 	unsigned in_ac97_init: 1,
397 		 in_sdin_init: 1;
398 	unsigned in_measurement: 1;	/* during ac97 clock measurement */
399 	unsigned fix_nocache: 1; 	/* workaround for 440MX */
400 	unsigned buggy_irq: 1;		/* workaround for buggy mobos */
401 	unsigned xbox: 1;		/* workaround for Xbox AC'97 detection */
402 	unsigned buggy_semaphore: 1;	/* workaround for buggy codec semaphore */
403 
404 	int spdif_idx;	/* SPDIF BAR index; *_SPBAR or -1 if use PCMOUT */
405 	unsigned int sdm_saved;	/* SDM reg value */
406 
407 	struct snd_ac97_bus *ac97_bus;
408 	struct snd_ac97 *ac97[3];
409 	unsigned int ac97_sdin[3];
410 	unsigned int max_codecs, ncodecs;
411 	unsigned int *codec_bit;
412 	unsigned int codec_isr_bits;
413 	unsigned int codec_ready_bits;
414 
415 	spinlock_t reg_lock;
416 
417 	u32 bdbars_count;
418 	struct snd_dma_buffer bdbars;
419 	u32 int_sta_reg;		/* interrupt status register */
420 	u32 int_sta_mask;		/* interrupt status mask */
421 };
422 
423 static struct pci_device_id snd_intel8x0_ids[] = {
424 	{ PCI_VDEVICE(INTEL, 0x2415), DEVICE_INTEL },	/* 82801AA */
425 	{ PCI_VDEVICE(INTEL, 0x2425), DEVICE_INTEL },	/* 82901AB */
426 	{ PCI_VDEVICE(INTEL, 0x2445), DEVICE_INTEL },	/* 82801BA */
427 	{ PCI_VDEVICE(INTEL, 0x2485), DEVICE_INTEL },	/* ICH3 */
428 	{ PCI_VDEVICE(INTEL, 0x24c5), DEVICE_INTEL_ICH4 }, /* ICH4 */
429 	{ PCI_VDEVICE(INTEL, 0x24d5), DEVICE_INTEL_ICH4 }, /* ICH5 */
430 	{ PCI_VDEVICE(INTEL, 0x25a6), DEVICE_INTEL_ICH4 }, /* ESB */
431 	{ PCI_VDEVICE(INTEL, 0x266e), DEVICE_INTEL_ICH4 }, /* ICH6 */
432 	{ PCI_VDEVICE(INTEL, 0x27de), DEVICE_INTEL_ICH4 }, /* ICH7 */
433 	{ PCI_VDEVICE(INTEL, 0x2698), DEVICE_INTEL_ICH4 }, /* ESB2 */
434 	{ PCI_VDEVICE(INTEL, 0x7195), DEVICE_INTEL },	/* 440MX */
435 	{ PCI_VDEVICE(SI, 0x7012), DEVICE_SIS },	/* SI7012 */
436 	{ PCI_VDEVICE(NVIDIA, 0x01b1), DEVICE_NFORCE },	/* NFORCE */
437 	{ PCI_VDEVICE(NVIDIA, 0x003a), DEVICE_NFORCE },	/* MCP04 */
438 	{ PCI_VDEVICE(NVIDIA, 0x006a), DEVICE_NFORCE },	/* NFORCE2 */
439 	{ PCI_VDEVICE(NVIDIA, 0x0059), DEVICE_NFORCE },	/* CK804 */
440 	{ PCI_VDEVICE(NVIDIA, 0x008a), DEVICE_NFORCE },	/* CK8 */
441 	{ PCI_VDEVICE(NVIDIA, 0x00da), DEVICE_NFORCE },	/* NFORCE3 */
442 	{ PCI_VDEVICE(NVIDIA, 0x00ea), DEVICE_NFORCE },	/* CK8S */
443 	{ PCI_VDEVICE(NVIDIA, 0x026b), DEVICE_NFORCE },	/* MCP51 */
444 	{ PCI_VDEVICE(AMD, 0x746d), DEVICE_INTEL },	/* AMD8111 */
445 	{ PCI_VDEVICE(AMD, 0x7445), DEVICE_INTEL },	/* AMD768 */
446 	{ PCI_VDEVICE(AL, 0x5455), DEVICE_ALI },   /* Ali5455 */
447 	{ 0, }
448 };
449 
450 MODULE_DEVICE_TABLE(pci, snd_intel8x0_ids);
451 
452 /*
453  *  Lowlevel I/O - busmaster
454  */
455 
456 static inline u8 igetbyte(struct intel8x0 *chip, u32 offset)
457 {
458 	return ioread8(chip->bmaddr + offset);
459 }
460 
461 static inline u16 igetword(struct intel8x0 *chip, u32 offset)
462 {
463 	return ioread16(chip->bmaddr + offset);
464 }
465 
466 static inline u32 igetdword(struct intel8x0 *chip, u32 offset)
467 {
468 	return ioread32(chip->bmaddr + offset);
469 }
470 
471 static inline void iputbyte(struct intel8x0 *chip, u32 offset, u8 val)
472 {
473 	iowrite8(val, chip->bmaddr + offset);
474 }
475 
476 static inline void iputword(struct intel8x0 *chip, u32 offset, u16 val)
477 {
478 	iowrite16(val, chip->bmaddr + offset);
479 }
480 
481 static inline void iputdword(struct intel8x0 *chip, u32 offset, u32 val)
482 {
483 	iowrite32(val, chip->bmaddr + offset);
484 }
485 
486 /*
487  *  Lowlevel I/O - AC'97 registers
488  */
489 
490 static inline u16 iagetword(struct intel8x0 *chip, u32 offset)
491 {
492 	return ioread16(chip->addr + offset);
493 }
494 
495 static inline void iaputword(struct intel8x0 *chip, u32 offset, u16 val)
496 {
497 	iowrite16(val, chip->addr + offset);
498 }
499 
500 /*
501  *  Basic I/O
502  */
503 
504 /*
505  * access to AC97 codec via normal i/o (for ICH and SIS7012)
506  */
507 
508 static int snd_intel8x0_codec_semaphore(struct intel8x0 *chip, unsigned int codec)
509 {
510 	int time;
511 
512 	if (codec > 2)
513 		return -EIO;
514 	if (chip->in_sdin_init) {
515 		/* we don't know the ready bit assignment at the moment */
516 		/* so we check any */
517 		codec = chip->codec_isr_bits;
518 	} else {
519 		codec = chip->codec_bit[chip->ac97_sdin[codec]];
520 	}
521 
522 	/* codec ready ? */
523 	if ((igetdword(chip, ICHREG(GLOB_STA)) & codec) == 0)
524 		return -EIO;
525 
526 	if (chip->buggy_semaphore)
527 		return 0; /* just ignore ... */
528 
529 	/* Anyone holding a semaphore for 1 msec should be shot... */
530 	time = 100;
531       	do {
532       		if (!(igetbyte(chip, ICHREG(ACC_SEMA)) & ICH_CAS))
533       			return 0;
534 		udelay(10);
535 	} while (time--);
536 
537 	/* access to some forbidden (non existant) ac97 registers will not
538 	 * reset the semaphore. So even if you don't get the semaphore, still
539 	 * continue the access. We don't need the semaphore anyway. */
540 	snd_printk(KERN_ERR "codec_semaphore: semaphore is not ready [0x%x][0x%x]\n",
541 			igetbyte(chip, ICHREG(ACC_SEMA)), igetdword(chip, ICHREG(GLOB_STA)));
542 	iagetword(chip, 0);	/* clear semaphore flag */
543 	/* I don't care about the semaphore */
544 	return -EBUSY;
545 }
546 
547 static void snd_intel8x0_codec_write(struct snd_ac97 *ac97,
548 				     unsigned short reg,
549 				     unsigned short val)
550 {
551 	struct intel8x0 *chip = ac97->private_data;
552 
553 	if (snd_intel8x0_codec_semaphore(chip, ac97->num) < 0) {
554 		if (! chip->in_ac97_init)
555 			snd_printk(KERN_ERR "codec_write %d: semaphore is not ready for register 0x%x\n", ac97->num, reg);
556 	}
557 	iaputword(chip, reg + ac97->num * 0x80, val);
558 }
559 
560 static unsigned short snd_intel8x0_codec_read(struct snd_ac97 *ac97,
561 					      unsigned short reg)
562 {
563 	struct intel8x0 *chip = ac97->private_data;
564 	unsigned short res;
565 	unsigned int tmp;
566 
567 	if (snd_intel8x0_codec_semaphore(chip, ac97->num) < 0) {
568 		if (! chip->in_ac97_init)
569 			snd_printk(KERN_ERR "codec_read %d: semaphore is not ready for register 0x%x\n", ac97->num, reg);
570 		res = 0xffff;
571 	} else {
572 		res = iagetword(chip, reg + ac97->num * 0x80);
573 		if ((tmp = igetdword(chip, ICHREG(GLOB_STA))) & ICH_RCS) {
574 			/* reset RCS and preserve other R/WC bits */
575 			iputdword(chip, ICHREG(GLOB_STA), tmp &
576 				  ~(chip->codec_ready_bits | ICH_GSCI));
577 			if (! chip->in_ac97_init)
578 				snd_printk(KERN_ERR "codec_read %d: read timeout for register 0x%x\n", ac97->num, reg);
579 			res = 0xffff;
580 		}
581 	}
582 	return res;
583 }
584 
585 static void __devinit snd_intel8x0_codec_read_test(struct intel8x0 *chip,
586 						   unsigned int codec)
587 {
588 	unsigned int tmp;
589 
590 	if (snd_intel8x0_codec_semaphore(chip, codec) >= 0) {
591 		iagetword(chip, codec * 0x80);
592 		if ((tmp = igetdword(chip, ICHREG(GLOB_STA))) & ICH_RCS) {
593 			/* reset RCS and preserve other R/WC bits */
594 			iputdword(chip, ICHREG(GLOB_STA), tmp &
595 				  ~(chip->codec_ready_bits | ICH_GSCI));
596 		}
597 	}
598 }
599 
600 /*
601  * access to AC97 for Ali5455
602  */
603 static int snd_intel8x0_ali_codec_ready(struct intel8x0 *chip, int mask)
604 {
605 	int count = 0;
606 	for (count = 0; count < 0x7f; count++) {
607 		int val = igetbyte(chip, ICHREG(ALI_CSPSR));
608 		if (val & mask)
609 			return 0;
610 	}
611 	if (! chip->in_ac97_init)
612 		snd_printd(KERN_WARNING "intel8x0: AC97 codec ready timeout.\n");
613 	return -EBUSY;
614 }
615 
616 static int snd_intel8x0_ali_codec_semaphore(struct intel8x0 *chip)
617 {
618 	int time = 100;
619 	if (chip->buggy_semaphore)
620 		return 0; /* just ignore ... */
621 	while (--time && (igetdword(chip, ICHREG(ALI_CAS)) & ALI_CAS_SEM_BUSY))
622 		udelay(1);
623 	if (! time && ! chip->in_ac97_init)
624 		snd_printk(KERN_WARNING "ali_codec_semaphore timeout\n");
625 	return snd_intel8x0_ali_codec_ready(chip, ALI_CSPSR_CODEC_READY);
626 }
627 
628 static unsigned short snd_intel8x0_ali_codec_read(struct snd_ac97 *ac97, unsigned short reg)
629 {
630 	struct intel8x0 *chip = ac97->private_data;
631 	unsigned short data = 0xffff;
632 
633 	if (snd_intel8x0_ali_codec_semaphore(chip))
634 		goto __err;
635 	reg |= ALI_CPR_ADDR_READ;
636 	if (ac97->num)
637 		reg |= ALI_CPR_ADDR_SECONDARY;
638 	iputword(chip, ICHREG(ALI_CPR_ADDR), reg);
639 	if (snd_intel8x0_ali_codec_ready(chip, ALI_CSPSR_READ_OK))
640 		goto __err;
641 	data = igetword(chip, ICHREG(ALI_SPR));
642  __err:
643 	return data;
644 }
645 
646 static void snd_intel8x0_ali_codec_write(struct snd_ac97 *ac97, unsigned short reg,
647 					 unsigned short val)
648 {
649 	struct intel8x0 *chip = ac97->private_data;
650 
651 	if (snd_intel8x0_ali_codec_semaphore(chip))
652 		return;
653 	iputword(chip, ICHREG(ALI_CPR), val);
654 	if (ac97->num)
655 		reg |= ALI_CPR_ADDR_SECONDARY;
656 	iputword(chip, ICHREG(ALI_CPR_ADDR), reg);
657 	snd_intel8x0_ali_codec_ready(chip, ALI_CSPSR_WRITE_OK);
658 }
659 
660 
661 /*
662  * DMA I/O
663  */
664 static void snd_intel8x0_setup_periods(struct intel8x0 *chip, struct ichdev *ichdev)
665 {
666 	int idx;
667 	u32 *bdbar = ichdev->bdbar;
668 	unsigned long port = ichdev->reg_offset;
669 
670 	iputdword(chip, port + ICH_REG_OFF_BDBAR, ichdev->bdbar_addr);
671 	if (ichdev->size == ichdev->fragsize) {
672 		ichdev->ack_reload = ichdev->ack = 2;
673 		ichdev->fragsize1 = ichdev->fragsize >> 1;
674 		for (idx = 0; idx < (ICH_REG_LVI_MASK + 1) * 2; idx += 4) {
675 			bdbar[idx + 0] = cpu_to_le32(ichdev->physbuf);
676 			bdbar[idx + 1] = cpu_to_le32(0x80000000 | /* interrupt on completion */
677 						     ichdev->fragsize1 >> ichdev->pos_shift);
678 			bdbar[idx + 2] = cpu_to_le32(ichdev->physbuf + (ichdev->size >> 1));
679 			bdbar[idx + 3] = cpu_to_le32(0x80000000 | /* interrupt on completion */
680 						     ichdev->fragsize1 >> ichdev->pos_shift);
681 		}
682 		ichdev->frags = 2;
683 	} else {
684 		ichdev->ack_reload = ichdev->ack = 1;
685 		ichdev->fragsize1 = ichdev->fragsize;
686 		for (idx = 0; idx < (ICH_REG_LVI_MASK + 1) * 2; idx += 2) {
687 			bdbar[idx + 0] = cpu_to_le32(ichdev->physbuf +
688 						     (((idx >> 1) * ichdev->fragsize) %
689 						      ichdev->size));
690 			bdbar[idx + 1] = cpu_to_le32(0x80000000 | /* interrupt on completion */
691 						     ichdev->fragsize >> ichdev->pos_shift);
692 #if 0
693 			printk(KERN_DEBUG "bdbar[%i] = 0x%x [0x%x]\n",
694 			       idx + 0, bdbar[idx + 0], bdbar[idx + 1]);
695 #endif
696 		}
697 		ichdev->frags = ichdev->size / ichdev->fragsize;
698 	}
699 	iputbyte(chip, port + ICH_REG_OFF_LVI, ichdev->lvi = ICH_REG_LVI_MASK);
700 	ichdev->civ = 0;
701 	iputbyte(chip, port + ICH_REG_OFF_CIV, 0);
702 	ichdev->lvi_frag = ICH_REG_LVI_MASK % ichdev->frags;
703 	ichdev->position = 0;
704 #if 0
705 	printk(KERN_DEBUG "lvi_frag = %i, frags = %i, period_size = 0x%x, "
706 	       "period_size1 = 0x%x\n",
707 	       ichdev->lvi_frag, ichdev->frags, ichdev->fragsize,
708 	       ichdev->fragsize1);
709 #endif
710 	/* clear interrupts */
711 	iputbyte(chip, port + ichdev->roff_sr, ICH_FIFOE | ICH_BCIS | ICH_LVBCI);
712 }
713 
714 #ifdef __i386__
715 /*
716  * Intel 82443MX running a 100MHz processor system bus has a hardware bug,
717  * which aborts PCI busmaster for audio transfer.  A workaround is to set
718  * the pages as non-cached.  For details, see the errata in
719  *	http://www.intel.com/design/chipsets/specupdt/245051.htm
720  */
721 static void fill_nocache(void *buf, int size, int nocache)
722 {
723 	size = (size + PAGE_SIZE - 1) >> PAGE_SHIFT;
724 	if (nocache)
725 		set_pages_uc(virt_to_page(buf), size);
726 	else
727 		set_pages_wb(virt_to_page(buf), size);
728 }
729 #else
730 #define fill_nocache(buf, size, nocache) do { ; } while (0)
731 #endif
732 
733 /*
734  *  Interrupt handler
735  */
736 
737 static inline void snd_intel8x0_update(struct intel8x0 *chip, struct ichdev *ichdev)
738 {
739 	unsigned long port = ichdev->reg_offset;
740 	unsigned long flags;
741 	int status, civ, i, step;
742 	int ack = 0;
743 
744 	spin_lock_irqsave(&chip->reg_lock, flags);
745 	status = igetbyte(chip, port + ichdev->roff_sr);
746 	civ = igetbyte(chip, port + ICH_REG_OFF_CIV);
747 	if (!(status & ICH_BCIS)) {
748 		step = 0;
749 	} else if (civ == ichdev->civ) {
750 		// snd_printd("civ same %d\n", civ);
751 		step = 1;
752 		ichdev->civ++;
753 		ichdev->civ &= ICH_REG_LVI_MASK;
754 	} else {
755 		step = civ - ichdev->civ;
756 		if (step < 0)
757 			step += ICH_REG_LVI_MASK + 1;
758 		// if (step != 1)
759 		//	snd_printd("step = %d, %d -> %d\n", step, ichdev->civ, civ);
760 		ichdev->civ = civ;
761 	}
762 
763 	ichdev->position += step * ichdev->fragsize1;
764 	if (! chip->in_measurement)
765 		ichdev->position %= ichdev->size;
766 	ichdev->lvi += step;
767 	ichdev->lvi &= ICH_REG_LVI_MASK;
768 	iputbyte(chip, port + ICH_REG_OFF_LVI, ichdev->lvi);
769 	for (i = 0; i < step; i++) {
770 		ichdev->lvi_frag++;
771 		ichdev->lvi_frag %= ichdev->frags;
772 		ichdev->bdbar[ichdev->lvi * 2] = cpu_to_le32(ichdev->physbuf + ichdev->lvi_frag * ichdev->fragsize1);
773 #if 0
774 	printk(KERN_DEBUG "new: bdbar[%i] = 0x%x [0x%x], prefetch = %i, "
775 	       "all = 0x%x, 0x%x\n",
776 	       ichdev->lvi * 2, ichdev->bdbar[ichdev->lvi * 2],
777 	       ichdev->bdbar[ichdev->lvi * 2 + 1], inb(ICH_REG_OFF_PIV + port),
778 	       inl(port + 4), inb(port + ICH_REG_OFF_CR));
779 #endif
780 		if (--ichdev->ack == 0) {
781 			ichdev->ack = ichdev->ack_reload;
782 			ack = 1;
783 		}
784 	}
785 	spin_unlock_irqrestore(&chip->reg_lock, flags);
786 	if (ack && ichdev->substream) {
787 		snd_pcm_period_elapsed(ichdev->substream);
788 	}
789 	iputbyte(chip, port + ichdev->roff_sr,
790 		 status & (ICH_FIFOE | ICH_BCIS | ICH_LVBCI));
791 }
792 
793 static irqreturn_t snd_intel8x0_interrupt(int irq, void *dev_id)
794 {
795 	struct intel8x0 *chip = dev_id;
796 	struct ichdev *ichdev;
797 	unsigned int status;
798 	unsigned int i;
799 
800 	status = igetdword(chip, chip->int_sta_reg);
801 	if (status == 0xffffffff)	/* we are not yet resumed */
802 		return IRQ_NONE;
803 
804 	if ((status & chip->int_sta_mask) == 0) {
805 		if (status) {
806 			/* ack */
807 			iputdword(chip, chip->int_sta_reg, status);
808 			if (! chip->buggy_irq)
809 				status = 0;
810 		}
811 		return IRQ_RETVAL(status);
812 	}
813 
814 	for (i = 0; i < chip->bdbars_count; i++) {
815 		ichdev = &chip->ichd[i];
816 		if (status & ichdev->int_sta_mask)
817 			snd_intel8x0_update(chip, ichdev);
818 	}
819 
820 	/* ack them */
821 	iputdword(chip, chip->int_sta_reg, status & chip->int_sta_mask);
822 
823 	return IRQ_HANDLED;
824 }
825 
826 /*
827  *  PCM part
828  */
829 
830 static int snd_intel8x0_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
831 {
832 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
833 	struct ichdev *ichdev = get_ichdev(substream);
834 	unsigned char val = 0;
835 	unsigned long port = ichdev->reg_offset;
836 
837 	switch (cmd) {
838 	case SNDRV_PCM_TRIGGER_RESUME:
839 		ichdev->suspended = 0;
840 		/* fallthru */
841 	case SNDRV_PCM_TRIGGER_START:
842 	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
843 		val = ICH_IOCE | ICH_STARTBM;
844 		ichdev->last_pos = ichdev->position;
845 		break;
846 	case SNDRV_PCM_TRIGGER_SUSPEND:
847 		ichdev->suspended = 1;
848 		/* fallthru */
849 	case SNDRV_PCM_TRIGGER_STOP:
850 		val = 0;
851 		break;
852 	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
853 		val = ICH_IOCE;
854 		break;
855 	default:
856 		return -EINVAL;
857 	}
858 	iputbyte(chip, port + ICH_REG_OFF_CR, val);
859 	if (cmd == SNDRV_PCM_TRIGGER_STOP) {
860 		/* wait until DMA stopped */
861 		while (!(igetbyte(chip, port + ichdev->roff_sr) & ICH_DCH)) ;
862 		/* reset whole DMA things */
863 		iputbyte(chip, port + ICH_REG_OFF_CR, ICH_RESETREGS);
864 	}
865 	return 0;
866 }
867 
868 static int snd_intel8x0_ali_trigger(struct snd_pcm_substream *substream, int cmd)
869 {
870 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
871 	struct ichdev *ichdev = get_ichdev(substream);
872 	unsigned long port = ichdev->reg_offset;
873 	static int fiforeg[] = {
874 		ICHREG(ALI_FIFOCR1), ICHREG(ALI_FIFOCR2), ICHREG(ALI_FIFOCR3)
875 	};
876 	unsigned int val, fifo;
877 
878 	val = igetdword(chip, ICHREG(ALI_DMACR));
879 	switch (cmd) {
880 	case SNDRV_PCM_TRIGGER_RESUME:
881 		ichdev->suspended = 0;
882 		/* fallthru */
883 	case SNDRV_PCM_TRIGGER_START:
884 	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
885 		if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
886 			/* clear FIFO for synchronization of channels */
887 			fifo = igetdword(chip, fiforeg[ichdev->ali_slot / 4]);
888 			fifo &= ~(0xff << (ichdev->ali_slot % 4));
889 			fifo |= 0x83 << (ichdev->ali_slot % 4);
890 			iputdword(chip, fiforeg[ichdev->ali_slot / 4], fifo);
891 		}
892 		iputbyte(chip, port + ICH_REG_OFF_CR, ICH_IOCE);
893 		val &= ~(1 << (ichdev->ali_slot + 16)); /* clear PAUSE flag */
894 		/* start DMA */
895 		iputdword(chip, ICHREG(ALI_DMACR), val | (1 << ichdev->ali_slot));
896 		break;
897 	case SNDRV_PCM_TRIGGER_SUSPEND:
898 		ichdev->suspended = 1;
899 		/* fallthru */
900 	case SNDRV_PCM_TRIGGER_STOP:
901 	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
902 		/* pause */
903 		iputdword(chip, ICHREG(ALI_DMACR), val | (1 << (ichdev->ali_slot + 16)));
904 		iputbyte(chip, port + ICH_REG_OFF_CR, 0);
905 		while (igetbyte(chip, port + ICH_REG_OFF_CR))
906 			;
907 		if (cmd == SNDRV_PCM_TRIGGER_PAUSE_PUSH)
908 			break;
909 		/* reset whole DMA things */
910 		iputbyte(chip, port + ICH_REG_OFF_CR, ICH_RESETREGS);
911 		/* clear interrupts */
912 		iputbyte(chip, port + ICH_REG_OFF_SR,
913 			 igetbyte(chip, port + ICH_REG_OFF_SR) | 0x1e);
914 		iputdword(chip, ICHREG(ALI_INTERRUPTSR),
915 			  igetdword(chip, ICHREG(ALI_INTERRUPTSR)) & ichdev->int_sta_mask);
916 		break;
917 	default:
918 		return -EINVAL;
919 	}
920 	return 0;
921 }
922 
923 static int snd_intel8x0_hw_params(struct snd_pcm_substream *substream,
924 				  struct snd_pcm_hw_params *hw_params)
925 {
926 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
927 	struct ichdev *ichdev = get_ichdev(substream);
928 	struct snd_pcm_runtime *runtime = substream->runtime;
929 	int dbl = params_rate(hw_params) > 48000;
930 	int err;
931 
932 	if (chip->fix_nocache && ichdev->page_attr_changed) {
933 		fill_nocache(runtime->dma_area, runtime->dma_bytes, 0); /* clear */
934 		ichdev->page_attr_changed = 0;
935 	}
936 	err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
937 	if (err < 0)
938 		return err;
939 	if (chip->fix_nocache) {
940 		if (runtime->dma_area && ! ichdev->page_attr_changed) {
941 			fill_nocache(runtime->dma_area, runtime->dma_bytes, 1);
942 			ichdev->page_attr_changed = 1;
943 		}
944 	}
945 	if (ichdev->pcm_open_flag) {
946 		snd_ac97_pcm_close(ichdev->pcm);
947 		ichdev->pcm_open_flag = 0;
948 	}
949 	err = snd_ac97_pcm_open(ichdev->pcm, params_rate(hw_params),
950 				params_channels(hw_params),
951 				ichdev->pcm->r[dbl].slots);
952 	if (err >= 0) {
953 		ichdev->pcm_open_flag = 1;
954 		/* Force SPDIF setting */
955 		if (ichdev->ichd == ICHD_PCMOUT && chip->spdif_idx < 0)
956 			snd_ac97_set_rate(ichdev->pcm->r[0].codec[0], AC97_SPDIF,
957 					  params_rate(hw_params));
958 	}
959 	return err;
960 }
961 
962 static int snd_intel8x0_hw_free(struct snd_pcm_substream *substream)
963 {
964 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
965 	struct ichdev *ichdev = get_ichdev(substream);
966 
967 	if (ichdev->pcm_open_flag) {
968 		snd_ac97_pcm_close(ichdev->pcm);
969 		ichdev->pcm_open_flag = 0;
970 	}
971 	if (chip->fix_nocache && ichdev->page_attr_changed) {
972 		fill_nocache(substream->runtime->dma_area, substream->runtime->dma_bytes, 0);
973 		ichdev->page_attr_changed = 0;
974 	}
975 	return snd_pcm_lib_free_pages(substream);
976 }
977 
978 static void snd_intel8x0_setup_pcm_out(struct intel8x0 *chip,
979 				       struct snd_pcm_runtime *runtime)
980 {
981 	unsigned int cnt;
982 	int dbl = runtime->rate > 48000;
983 
984 	spin_lock_irq(&chip->reg_lock);
985 	switch (chip->device_type) {
986 	case DEVICE_ALI:
987 		cnt = igetdword(chip, ICHREG(ALI_SCR));
988 		cnt &= ~ICH_ALI_SC_PCM_246_MASK;
989 		if (runtime->channels == 4 || dbl)
990 			cnt |= ICH_ALI_SC_PCM_4;
991 		else if (runtime->channels == 6)
992 			cnt |= ICH_ALI_SC_PCM_6;
993 		iputdword(chip, ICHREG(ALI_SCR), cnt);
994 		break;
995 	case DEVICE_SIS:
996 		cnt = igetdword(chip, ICHREG(GLOB_CNT));
997 		cnt &= ~ICH_SIS_PCM_246_MASK;
998 		if (runtime->channels == 4 || dbl)
999 			cnt |= ICH_SIS_PCM_4;
1000 		else if (runtime->channels == 6)
1001 			cnt |= ICH_SIS_PCM_6;
1002 		iputdword(chip, ICHREG(GLOB_CNT), cnt);
1003 		break;
1004 	default:
1005 		cnt = igetdword(chip, ICHREG(GLOB_CNT));
1006 		cnt &= ~(ICH_PCM_246_MASK | ICH_PCM_20BIT);
1007 		if (runtime->channels == 4 || dbl)
1008 			cnt |= ICH_PCM_4;
1009 		else if (runtime->channels == 6)
1010 			cnt |= ICH_PCM_6;
1011 		else if (runtime->channels == 8)
1012 			cnt |= ICH_PCM_8;
1013 		if (chip->device_type == DEVICE_NFORCE) {
1014 			/* reset to 2ch once to keep the 6 channel data in alignment,
1015 			 * to start from Front Left always
1016 			 */
1017 			if (cnt & ICH_PCM_246_MASK) {
1018 				iputdword(chip, ICHREG(GLOB_CNT), cnt & ~ICH_PCM_246_MASK);
1019 				spin_unlock_irq(&chip->reg_lock);
1020 				msleep(50); /* grrr... */
1021 				spin_lock_irq(&chip->reg_lock);
1022 			}
1023 		} else if (chip->device_type == DEVICE_INTEL_ICH4) {
1024 			if (runtime->sample_bits > 16)
1025 				cnt |= ICH_PCM_20BIT;
1026 		}
1027 		iputdword(chip, ICHREG(GLOB_CNT), cnt);
1028 		break;
1029 	}
1030 	spin_unlock_irq(&chip->reg_lock);
1031 }
1032 
1033 static int snd_intel8x0_pcm_prepare(struct snd_pcm_substream *substream)
1034 {
1035 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1036 	struct snd_pcm_runtime *runtime = substream->runtime;
1037 	struct ichdev *ichdev = get_ichdev(substream);
1038 
1039 	ichdev->physbuf = runtime->dma_addr;
1040 	ichdev->size = snd_pcm_lib_buffer_bytes(substream);
1041 	ichdev->fragsize = snd_pcm_lib_period_bytes(substream);
1042 	if (ichdev->ichd == ICHD_PCMOUT) {
1043 		snd_intel8x0_setup_pcm_out(chip, runtime);
1044 		if (chip->device_type == DEVICE_INTEL_ICH4)
1045 			ichdev->pos_shift = (runtime->sample_bits > 16) ? 2 : 1;
1046 	}
1047 	snd_intel8x0_setup_periods(chip, ichdev);
1048 	return 0;
1049 }
1050 
1051 static snd_pcm_uframes_t snd_intel8x0_pcm_pointer(struct snd_pcm_substream *substream)
1052 {
1053 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1054 	struct ichdev *ichdev = get_ichdev(substream);
1055 	size_t ptr1, ptr;
1056 	int civ, timeout = 10;
1057 	unsigned int position;
1058 
1059 	spin_lock(&chip->reg_lock);
1060 	do {
1061 		civ = igetbyte(chip, ichdev->reg_offset + ICH_REG_OFF_CIV);
1062 		ptr1 = igetword(chip, ichdev->reg_offset + ichdev->roff_picb);
1063 		position = ichdev->position;
1064 		if (ptr1 == 0) {
1065 			udelay(10);
1066 			continue;
1067 		}
1068 		if (civ == igetbyte(chip, ichdev->reg_offset + ICH_REG_OFF_CIV) &&
1069 		    ptr1 == igetword(chip, ichdev->reg_offset + ichdev->roff_picb))
1070 			break;
1071 	} while (timeout--);
1072 	ptr = ichdev->last_pos;
1073 	if (ptr1 != 0) {
1074 		ptr1 <<= ichdev->pos_shift;
1075 		ptr = ichdev->fragsize1 - ptr1;
1076 		ptr += position;
1077 		if (ptr < ichdev->last_pos) {
1078 			unsigned int pos_base, last_base;
1079 			pos_base = position / ichdev->fragsize1;
1080 			last_base = ichdev->last_pos / ichdev->fragsize1;
1081 			/* another sanity check; ptr1 can go back to full
1082 			 * before the base position is updated
1083 			 */
1084 			if (pos_base == last_base)
1085 				ptr = ichdev->last_pos;
1086 		}
1087 	}
1088 	ichdev->last_pos = ptr;
1089 	spin_unlock(&chip->reg_lock);
1090 	if (ptr >= ichdev->size)
1091 		return 0;
1092 	return bytes_to_frames(substream->runtime, ptr);
1093 }
1094 
1095 static struct snd_pcm_hardware snd_intel8x0_stream =
1096 {
1097 	.info =			(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1098 				 SNDRV_PCM_INFO_BLOCK_TRANSFER |
1099 				 SNDRV_PCM_INFO_MMAP_VALID |
1100 				 SNDRV_PCM_INFO_PAUSE |
1101 				 SNDRV_PCM_INFO_RESUME),
1102 	.formats =		SNDRV_PCM_FMTBIT_S16_LE,
1103 	.rates =		SNDRV_PCM_RATE_48000,
1104 	.rate_min =		48000,
1105 	.rate_max =		48000,
1106 	.channels_min =		2,
1107 	.channels_max =		2,
1108 	.buffer_bytes_max =	128 * 1024,
1109 	.period_bytes_min =	32,
1110 	.period_bytes_max =	128 * 1024,
1111 	.periods_min =		1,
1112 	.periods_max =		1024,
1113 	.fifo_size =		0,
1114 };
1115 
1116 static unsigned int channels4[] = {
1117 	2, 4,
1118 };
1119 
1120 static struct snd_pcm_hw_constraint_list hw_constraints_channels4 = {
1121 	.count = ARRAY_SIZE(channels4),
1122 	.list = channels4,
1123 	.mask = 0,
1124 };
1125 
1126 static unsigned int channels6[] = {
1127 	2, 4, 6,
1128 };
1129 
1130 static struct snd_pcm_hw_constraint_list hw_constraints_channels6 = {
1131 	.count = ARRAY_SIZE(channels6),
1132 	.list = channels6,
1133 	.mask = 0,
1134 };
1135 
1136 static unsigned int channels8[] = {
1137 	2, 4, 6, 8,
1138 };
1139 
1140 static struct snd_pcm_hw_constraint_list hw_constraints_channels8 = {
1141 	.count = ARRAY_SIZE(channels8),
1142 	.list = channels8,
1143 	.mask = 0,
1144 };
1145 
1146 static int snd_intel8x0_pcm_open(struct snd_pcm_substream *substream, struct ichdev *ichdev)
1147 {
1148 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1149 	struct snd_pcm_runtime *runtime = substream->runtime;
1150 	int err;
1151 
1152 	ichdev->substream = substream;
1153 	runtime->hw = snd_intel8x0_stream;
1154 	runtime->hw.rates = ichdev->pcm->rates;
1155 	snd_pcm_limit_hw_rates(runtime);
1156 	if (chip->device_type == DEVICE_SIS) {
1157 		runtime->hw.buffer_bytes_max = 64*1024;
1158 		runtime->hw.period_bytes_max = 64*1024;
1159 	}
1160 	if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
1161 		return err;
1162 	runtime->private_data = ichdev;
1163 	return 0;
1164 }
1165 
1166 static int snd_intel8x0_playback_open(struct snd_pcm_substream *substream)
1167 {
1168 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1169 	struct snd_pcm_runtime *runtime = substream->runtime;
1170 	int err;
1171 
1172 	err = snd_intel8x0_pcm_open(substream, &chip->ichd[ICHD_PCMOUT]);
1173 	if (err < 0)
1174 		return err;
1175 
1176 	if (chip->multi8) {
1177 		runtime->hw.channels_max = 8;
1178 		snd_pcm_hw_constraint_list(runtime, 0,
1179 						SNDRV_PCM_HW_PARAM_CHANNELS,
1180 						&hw_constraints_channels8);
1181 	} else if (chip->multi6) {
1182 		runtime->hw.channels_max = 6;
1183 		snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
1184 					   &hw_constraints_channels6);
1185 	} else if (chip->multi4) {
1186 		runtime->hw.channels_max = 4;
1187 		snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
1188 					   &hw_constraints_channels4);
1189 	}
1190 	if (chip->dra) {
1191 		snd_ac97_pcm_double_rate_rules(runtime);
1192 	}
1193 	if (chip->smp20bit) {
1194 		runtime->hw.formats |= SNDRV_PCM_FMTBIT_S32_LE;
1195 		snd_pcm_hw_constraint_msbits(runtime, 0, 32, 20);
1196 	}
1197 	return 0;
1198 }
1199 
1200 static int snd_intel8x0_playback_close(struct snd_pcm_substream *substream)
1201 {
1202 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1203 
1204 	chip->ichd[ICHD_PCMOUT].substream = NULL;
1205 	return 0;
1206 }
1207 
1208 static int snd_intel8x0_capture_open(struct snd_pcm_substream *substream)
1209 {
1210 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1211 
1212 	return snd_intel8x0_pcm_open(substream, &chip->ichd[ICHD_PCMIN]);
1213 }
1214 
1215 static int snd_intel8x0_capture_close(struct snd_pcm_substream *substream)
1216 {
1217 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1218 
1219 	chip->ichd[ICHD_PCMIN].substream = NULL;
1220 	return 0;
1221 }
1222 
1223 static int snd_intel8x0_mic_open(struct snd_pcm_substream *substream)
1224 {
1225 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1226 
1227 	return snd_intel8x0_pcm_open(substream, &chip->ichd[ICHD_MIC]);
1228 }
1229 
1230 static int snd_intel8x0_mic_close(struct snd_pcm_substream *substream)
1231 {
1232 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1233 
1234 	chip->ichd[ICHD_MIC].substream = NULL;
1235 	return 0;
1236 }
1237 
1238 static int snd_intel8x0_mic2_open(struct snd_pcm_substream *substream)
1239 {
1240 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1241 
1242 	return snd_intel8x0_pcm_open(substream, &chip->ichd[ICHD_MIC2]);
1243 }
1244 
1245 static int snd_intel8x0_mic2_close(struct snd_pcm_substream *substream)
1246 {
1247 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1248 
1249 	chip->ichd[ICHD_MIC2].substream = NULL;
1250 	return 0;
1251 }
1252 
1253 static int snd_intel8x0_capture2_open(struct snd_pcm_substream *substream)
1254 {
1255 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1256 
1257 	return snd_intel8x0_pcm_open(substream, &chip->ichd[ICHD_PCM2IN]);
1258 }
1259 
1260 static int snd_intel8x0_capture2_close(struct snd_pcm_substream *substream)
1261 {
1262 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1263 
1264 	chip->ichd[ICHD_PCM2IN].substream = NULL;
1265 	return 0;
1266 }
1267 
1268 static int snd_intel8x0_spdif_open(struct snd_pcm_substream *substream)
1269 {
1270 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1271 	int idx = chip->device_type == DEVICE_NFORCE ? NVD_SPBAR : ICHD_SPBAR;
1272 
1273 	return snd_intel8x0_pcm_open(substream, &chip->ichd[idx]);
1274 }
1275 
1276 static int snd_intel8x0_spdif_close(struct snd_pcm_substream *substream)
1277 {
1278 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1279 	int idx = chip->device_type == DEVICE_NFORCE ? NVD_SPBAR : ICHD_SPBAR;
1280 
1281 	chip->ichd[idx].substream = NULL;
1282 	return 0;
1283 }
1284 
1285 static int snd_intel8x0_ali_ac97spdifout_open(struct snd_pcm_substream *substream)
1286 {
1287 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1288 	unsigned int val;
1289 
1290 	spin_lock_irq(&chip->reg_lock);
1291 	val = igetdword(chip, ICHREG(ALI_INTERFACECR));
1292 	val |= ICH_ALI_IF_AC97SP;
1293 	iputdword(chip, ICHREG(ALI_INTERFACECR), val);
1294 	/* also needs to set ALI_SC_CODEC_SPDF correctly */
1295 	spin_unlock_irq(&chip->reg_lock);
1296 
1297 	return snd_intel8x0_pcm_open(substream, &chip->ichd[ALID_AC97SPDIFOUT]);
1298 }
1299 
1300 static int snd_intel8x0_ali_ac97spdifout_close(struct snd_pcm_substream *substream)
1301 {
1302 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1303 	unsigned int val;
1304 
1305 	chip->ichd[ALID_AC97SPDIFOUT].substream = NULL;
1306 	spin_lock_irq(&chip->reg_lock);
1307 	val = igetdword(chip, ICHREG(ALI_INTERFACECR));
1308 	val &= ~ICH_ALI_IF_AC97SP;
1309 	iputdword(chip, ICHREG(ALI_INTERFACECR), val);
1310 	spin_unlock_irq(&chip->reg_lock);
1311 
1312 	return 0;
1313 }
1314 
1315 #if 0 // NYI
1316 static int snd_intel8x0_ali_spdifin_open(struct snd_pcm_substream *substream)
1317 {
1318 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1319 
1320 	return snd_intel8x0_pcm_open(substream, &chip->ichd[ALID_SPDIFIN]);
1321 }
1322 
1323 static int snd_intel8x0_ali_spdifin_close(struct snd_pcm_substream *substream)
1324 {
1325 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1326 
1327 	chip->ichd[ALID_SPDIFIN].substream = NULL;
1328 	return 0;
1329 }
1330 
1331 static int snd_intel8x0_ali_spdifout_open(struct snd_pcm_substream *substream)
1332 {
1333 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1334 
1335 	return snd_intel8x0_pcm_open(substream, &chip->ichd[ALID_SPDIFOUT]);
1336 }
1337 
1338 static int snd_intel8x0_ali_spdifout_close(struct snd_pcm_substream *substream)
1339 {
1340 	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1341 
1342 	chip->ichd[ALID_SPDIFOUT].substream = NULL;
1343 	return 0;
1344 }
1345 #endif
1346 
1347 static struct snd_pcm_ops snd_intel8x0_playback_ops = {
1348 	.open =		snd_intel8x0_playback_open,
1349 	.close =	snd_intel8x0_playback_close,
1350 	.ioctl =	snd_pcm_lib_ioctl,
1351 	.hw_params =	snd_intel8x0_hw_params,
1352 	.hw_free =	snd_intel8x0_hw_free,
1353 	.prepare =	snd_intel8x0_pcm_prepare,
1354 	.trigger =	snd_intel8x0_pcm_trigger,
1355 	.pointer =	snd_intel8x0_pcm_pointer,
1356 };
1357 
1358 static struct snd_pcm_ops snd_intel8x0_capture_ops = {
1359 	.open =		snd_intel8x0_capture_open,
1360 	.close =	snd_intel8x0_capture_close,
1361 	.ioctl =	snd_pcm_lib_ioctl,
1362 	.hw_params =	snd_intel8x0_hw_params,
1363 	.hw_free =	snd_intel8x0_hw_free,
1364 	.prepare =	snd_intel8x0_pcm_prepare,
1365 	.trigger =	snd_intel8x0_pcm_trigger,
1366 	.pointer =	snd_intel8x0_pcm_pointer,
1367 };
1368 
1369 static struct snd_pcm_ops snd_intel8x0_capture_mic_ops = {
1370 	.open =		snd_intel8x0_mic_open,
1371 	.close =	snd_intel8x0_mic_close,
1372 	.ioctl =	snd_pcm_lib_ioctl,
1373 	.hw_params =	snd_intel8x0_hw_params,
1374 	.hw_free =	snd_intel8x0_hw_free,
1375 	.prepare =	snd_intel8x0_pcm_prepare,
1376 	.trigger =	snd_intel8x0_pcm_trigger,
1377 	.pointer =	snd_intel8x0_pcm_pointer,
1378 };
1379 
1380 static struct snd_pcm_ops snd_intel8x0_capture_mic2_ops = {
1381 	.open =		snd_intel8x0_mic2_open,
1382 	.close =	snd_intel8x0_mic2_close,
1383 	.ioctl =	snd_pcm_lib_ioctl,
1384 	.hw_params =	snd_intel8x0_hw_params,
1385 	.hw_free =	snd_intel8x0_hw_free,
1386 	.prepare =	snd_intel8x0_pcm_prepare,
1387 	.trigger =	snd_intel8x0_pcm_trigger,
1388 	.pointer =	snd_intel8x0_pcm_pointer,
1389 };
1390 
1391 static struct snd_pcm_ops snd_intel8x0_capture2_ops = {
1392 	.open =		snd_intel8x0_capture2_open,
1393 	.close =	snd_intel8x0_capture2_close,
1394 	.ioctl =	snd_pcm_lib_ioctl,
1395 	.hw_params =	snd_intel8x0_hw_params,
1396 	.hw_free =	snd_intel8x0_hw_free,
1397 	.prepare =	snd_intel8x0_pcm_prepare,
1398 	.trigger =	snd_intel8x0_pcm_trigger,
1399 	.pointer =	snd_intel8x0_pcm_pointer,
1400 };
1401 
1402 static struct snd_pcm_ops snd_intel8x0_spdif_ops = {
1403 	.open =		snd_intel8x0_spdif_open,
1404 	.close =	snd_intel8x0_spdif_close,
1405 	.ioctl =	snd_pcm_lib_ioctl,
1406 	.hw_params =	snd_intel8x0_hw_params,
1407 	.hw_free =	snd_intel8x0_hw_free,
1408 	.prepare =	snd_intel8x0_pcm_prepare,
1409 	.trigger =	snd_intel8x0_pcm_trigger,
1410 	.pointer =	snd_intel8x0_pcm_pointer,
1411 };
1412 
1413 static struct snd_pcm_ops snd_intel8x0_ali_playback_ops = {
1414 	.open =		snd_intel8x0_playback_open,
1415 	.close =	snd_intel8x0_playback_close,
1416 	.ioctl =	snd_pcm_lib_ioctl,
1417 	.hw_params =	snd_intel8x0_hw_params,
1418 	.hw_free =	snd_intel8x0_hw_free,
1419 	.prepare =	snd_intel8x0_pcm_prepare,
1420 	.trigger =	snd_intel8x0_ali_trigger,
1421 	.pointer =	snd_intel8x0_pcm_pointer,
1422 };
1423 
1424 static struct snd_pcm_ops snd_intel8x0_ali_capture_ops = {
1425 	.open =		snd_intel8x0_capture_open,
1426 	.close =	snd_intel8x0_capture_close,
1427 	.ioctl =	snd_pcm_lib_ioctl,
1428 	.hw_params =	snd_intel8x0_hw_params,
1429 	.hw_free =	snd_intel8x0_hw_free,
1430 	.prepare =	snd_intel8x0_pcm_prepare,
1431 	.trigger =	snd_intel8x0_ali_trigger,
1432 	.pointer =	snd_intel8x0_pcm_pointer,
1433 };
1434 
1435 static struct snd_pcm_ops snd_intel8x0_ali_capture_mic_ops = {
1436 	.open =		snd_intel8x0_mic_open,
1437 	.close =	snd_intel8x0_mic_close,
1438 	.ioctl =	snd_pcm_lib_ioctl,
1439 	.hw_params =	snd_intel8x0_hw_params,
1440 	.hw_free =	snd_intel8x0_hw_free,
1441 	.prepare =	snd_intel8x0_pcm_prepare,
1442 	.trigger =	snd_intel8x0_ali_trigger,
1443 	.pointer =	snd_intel8x0_pcm_pointer,
1444 };
1445 
1446 static struct snd_pcm_ops snd_intel8x0_ali_ac97spdifout_ops = {
1447 	.open =		snd_intel8x0_ali_ac97spdifout_open,
1448 	.close =	snd_intel8x0_ali_ac97spdifout_close,
1449 	.ioctl =	snd_pcm_lib_ioctl,
1450 	.hw_params =	snd_intel8x0_hw_params,
1451 	.hw_free =	snd_intel8x0_hw_free,
1452 	.prepare =	snd_intel8x0_pcm_prepare,
1453 	.trigger =	snd_intel8x0_ali_trigger,
1454 	.pointer =	snd_intel8x0_pcm_pointer,
1455 };
1456 
1457 #if 0 // NYI
1458 static struct snd_pcm_ops snd_intel8x0_ali_spdifin_ops = {
1459 	.open =		snd_intel8x0_ali_spdifin_open,
1460 	.close =	snd_intel8x0_ali_spdifin_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_pcm_trigger,
1466 	.pointer =	snd_intel8x0_pcm_pointer,
1467 };
1468 
1469 static struct snd_pcm_ops snd_intel8x0_ali_spdifout_ops = {
1470 	.open =		snd_intel8x0_ali_spdifout_open,
1471 	.close =	snd_intel8x0_ali_spdifout_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_pcm_trigger,
1477 	.pointer =	snd_intel8x0_pcm_pointer,
1478 };
1479 #endif // NYI
1480 
1481 struct ich_pcm_table {
1482 	char *suffix;
1483 	struct snd_pcm_ops *playback_ops;
1484 	struct snd_pcm_ops *capture_ops;
1485 	size_t prealloc_size;
1486 	size_t prealloc_max_size;
1487 	int ac97_idx;
1488 };
1489 
1490 static int __devinit snd_intel8x0_pcm1(struct intel8x0 *chip, int device,
1491 				       struct ich_pcm_table *rec)
1492 {
1493 	struct snd_pcm *pcm;
1494 	int err;
1495 	char name[32];
1496 
1497 	if (rec->suffix)
1498 		sprintf(name, "Intel ICH - %s", rec->suffix);
1499 	else
1500 		strcpy(name, "Intel ICH");
1501 	err = snd_pcm_new(chip->card, name, device,
1502 			  rec->playback_ops ? 1 : 0,
1503 			  rec->capture_ops ? 1 : 0, &pcm);
1504 	if (err < 0)
1505 		return err;
1506 
1507 	if (rec->playback_ops)
1508 		snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, rec->playback_ops);
1509 	if (rec->capture_ops)
1510 		snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, rec->capture_ops);
1511 
1512 	pcm->private_data = chip;
1513 	pcm->info_flags = 0;
1514 	if (rec->suffix)
1515 		sprintf(pcm->name, "%s - %s", chip->card->shortname, rec->suffix);
1516 	else
1517 		strcpy(pcm->name, chip->card->shortname);
1518 	chip->pcm[device] = pcm;
1519 
1520 	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
1521 					      snd_dma_pci_data(chip->pci),
1522 					      rec->prealloc_size, rec->prealloc_max_size);
1523 
1524 	return 0;
1525 }
1526 
1527 static struct ich_pcm_table intel_pcms[] __devinitdata = {
1528 	{
1529 		.playback_ops = &snd_intel8x0_playback_ops,
1530 		.capture_ops = &snd_intel8x0_capture_ops,
1531 		.prealloc_size = 64 * 1024,
1532 		.prealloc_max_size = 128 * 1024,
1533 	},
1534 	{
1535 		.suffix = "MIC ADC",
1536 		.capture_ops = &snd_intel8x0_capture_mic_ops,
1537 		.prealloc_size = 0,
1538 		.prealloc_max_size = 128 * 1024,
1539 		.ac97_idx = ICHD_MIC,
1540 	},
1541 	{
1542 		.suffix = "MIC2 ADC",
1543 		.capture_ops = &snd_intel8x0_capture_mic2_ops,
1544 		.prealloc_size = 0,
1545 		.prealloc_max_size = 128 * 1024,
1546 		.ac97_idx = ICHD_MIC2,
1547 	},
1548 	{
1549 		.suffix = "ADC2",
1550 		.capture_ops = &snd_intel8x0_capture2_ops,
1551 		.prealloc_size = 0,
1552 		.prealloc_max_size = 128 * 1024,
1553 		.ac97_idx = ICHD_PCM2IN,
1554 	},
1555 	{
1556 		.suffix = "IEC958",
1557 		.playback_ops = &snd_intel8x0_spdif_ops,
1558 		.prealloc_size = 64 * 1024,
1559 		.prealloc_max_size = 128 * 1024,
1560 		.ac97_idx = ICHD_SPBAR,
1561 	},
1562 };
1563 
1564 static struct ich_pcm_table nforce_pcms[] __devinitdata = {
1565 	{
1566 		.playback_ops = &snd_intel8x0_playback_ops,
1567 		.capture_ops = &snd_intel8x0_capture_ops,
1568 		.prealloc_size = 64 * 1024,
1569 		.prealloc_max_size = 128 * 1024,
1570 	},
1571 	{
1572 		.suffix = "MIC ADC",
1573 		.capture_ops = &snd_intel8x0_capture_mic_ops,
1574 		.prealloc_size = 0,
1575 		.prealloc_max_size = 128 * 1024,
1576 		.ac97_idx = NVD_MIC,
1577 	},
1578 	{
1579 		.suffix = "IEC958",
1580 		.playback_ops = &snd_intel8x0_spdif_ops,
1581 		.prealloc_size = 64 * 1024,
1582 		.prealloc_max_size = 128 * 1024,
1583 		.ac97_idx = NVD_SPBAR,
1584 	},
1585 };
1586 
1587 static struct ich_pcm_table ali_pcms[] __devinitdata = {
1588 	{
1589 		.playback_ops = &snd_intel8x0_ali_playback_ops,
1590 		.capture_ops = &snd_intel8x0_ali_capture_ops,
1591 		.prealloc_size = 64 * 1024,
1592 		.prealloc_max_size = 128 * 1024,
1593 	},
1594 	{
1595 		.suffix = "MIC ADC",
1596 		.capture_ops = &snd_intel8x0_ali_capture_mic_ops,
1597 		.prealloc_size = 0,
1598 		.prealloc_max_size = 128 * 1024,
1599 		.ac97_idx = ALID_MIC,
1600 	},
1601 	{
1602 		.suffix = "IEC958",
1603 		.playback_ops = &snd_intel8x0_ali_ac97spdifout_ops,
1604 		/* .capture_ops = &snd_intel8x0_ali_spdifin_ops, */
1605 		.prealloc_size = 64 * 1024,
1606 		.prealloc_max_size = 128 * 1024,
1607 		.ac97_idx = ALID_AC97SPDIFOUT,
1608 	},
1609 #if 0 // NYI
1610 	{
1611 		.suffix = "HW IEC958",
1612 		.playback_ops = &snd_intel8x0_ali_spdifout_ops,
1613 		.prealloc_size = 64 * 1024,
1614 		.prealloc_max_size = 128 * 1024,
1615 	},
1616 #endif
1617 };
1618 
1619 static int __devinit snd_intel8x0_pcm(struct intel8x0 *chip)
1620 {
1621 	int i, tblsize, device, err;
1622 	struct ich_pcm_table *tbl, *rec;
1623 
1624 	switch (chip->device_type) {
1625 	case DEVICE_INTEL_ICH4:
1626 		tbl = intel_pcms;
1627 		tblsize = ARRAY_SIZE(intel_pcms);
1628 		if (spdif_aclink)
1629 			tblsize--;
1630 		break;
1631 	case DEVICE_NFORCE:
1632 		tbl = nforce_pcms;
1633 		tblsize = ARRAY_SIZE(nforce_pcms);
1634 		if (spdif_aclink)
1635 			tblsize--;
1636 		break;
1637 	case DEVICE_ALI:
1638 		tbl = ali_pcms;
1639 		tblsize = ARRAY_SIZE(ali_pcms);
1640 		break;
1641 	default:
1642 		tbl = intel_pcms;
1643 		tblsize = 2;
1644 		break;
1645 	}
1646 
1647 	device = 0;
1648 	for (i = 0; i < tblsize; i++) {
1649 		rec = tbl + i;
1650 		if (i > 0 && rec->ac97_idx) {
1651 			/* activate PCM only when associated AC'97 codec */
1652 			if (! chip->ichd[rec->ac97_idx].pcm)
1653 				continue;
1654 		}
1655 		err = snd_intel8x0_pcm1(chip, device, rec);
1656 		if (err < 0)
1657 			return err;
1658 		device++;
1659 	}
1660 
1661 	chip->pcm_devs = device;
1662 	return 0;
1663 }
1664 
1665 
1666 /*
1667  *  Mixer part
1668  */
1669 
1670 static void snd_intel8x0_mixer_free_ac97_bus(struct snd_ac97_bus *bus)
1671 {
1672 	struct intel8x0 *chip = bus->private_data;
1673 	chip->ac97_bus = NULL;
1674 }
1675 
1676 static void snd_intel8x0_mixer_free_ac97(struct snd_ac97 *ac97)
1677 {
1678 	struct intel8x0 *chip = ac97->private_data;
1679 	chip->ac97[ac97->num] = NULL;
1680 }
1681 
1682 static struct ac97_pcm ac97_pcm_defs[] __devinitdata = {
1683 	/* front PCM */
1684 	{
1685 		.exclusive = 1,
1686 		.r = {	{
1687 				.slots = (1 << AC97_SLOT_PCM_LEFT) |
1688 					 (1 << AC97_SLOT_PCM_RIGHT) |
1689 					 (1 << AC97_SLOT_PCM_CENTER) |
1690 					 (1 << AC97_SLOT_PCM_SLEFT) |
1691 					 (1 << AC97_SLOT_PCM_SRIGHT) |
1692 					 (1 << AC97_SLOT_LFE)
1693 			},
1694 			{
1695 				.slots = (1 << AC97_SLOT_PCM_LEFT) |
1696 					 (1 << AC97_SLOT_PCM_RIGHT) |
1697 					 (1 << AC97_SLOT_PCM_LEFT_0) |
1698 					 (1 << AC97_SLOT_PCM_RIGHT_0)
1699 			}
1700 		}
1701 	},
1702 	/* PCM IN #1 */
1703 	{
1704 		.stream = 1,
1705 		.exclusive = 1,
1706 		.r = {	{
1707 				.slots = (1 << AC97_SLOT_PCM_LEFT) |
1708 					 (1 << AC97_SLOT_PCM_RIGHT)
1709 			}
1710 		}
1711 	},
1712 	/* MIC IN #1 */
1713 	{
1714 		.stream = 1,
1715 		.exclusive = 1,
1716 		.r = {	{
1717 				.slots = (1 << AC97_SLOT_MIC)
1718 			}
1719 		}
1720 	},
1721 	/* S/PDIF PCM */
1722 	{
1723 		.exclusive = 1,
1724 		.spdif = 1,
1725 		.r = {	{
1726 				.slots = (1 << AC97_SLOT_SPDIF_LEFT2) |
1727 					 (1 << AC97_SLOT_SPDIF_RIGHT2)
1728 			}
1729 		}
1730 	},
1731 	/* PCM IN #2 */
1732 	{
1733 		.stream = 1,
1734 		.exclusive = 1,
1735 		.r = {	{
1736 				.slots = (1 << AC97_SLOT_PCM_LEFT) |
1737 					 (1 << AC97_SLOT_PCM_RIGHT)
1738 			}
1739 		}
1740 	},
1741 	/* MIC IN #2 */
1742 	{
1743 		.stream = 1,
1744 		.exclusive = 1,
1745 		.r = {	{
1746 				.slots = (1 << AC97_SLOT_MIC)
1747 			}
1748 		}
1749 	},
1750 };
1751 
1752 static struct ac97_quirk ac97_quirks[] __devinitdata = {
1753         {
1754 		.subvendor = 0x0e11,
1755 		.subdevice = 0x000e,
1756 		.name = "Compaq Deskpro EN",	/* AD1885 */
1757 		.type = AC97_TUNE_HP_ONLY
1758         },
1759 	{
1760 		.subvendor = 0x0e11,
1761 		.subdevice = 0x008a,
1762 		.name = "Compaq Evo W4000",	/* AD1885 */
1763 		.type = AC97_TUNE_HP_ONLY
1764 	},
1765 	{
1766 		.subvendor = 0x0e11,
1767 		.subdevice = 0x00b8,
1768 		.name = "Compaq Evo D510C",
1769 		.type = AC97_TUNE_HP_ONLY
1770 	},
1771         {
1772 		.subvendor = 0x0e11,
1773 		.subdevice = 0x0860,
1774 		.name = "HP/Compaq nx7010",
1775 		.type = AC97_TUNE_MUTE_LED
1776         },
1777 	{
1778 		.subvendor = 0x1014,
1779 		.subdevice = 0x1f00,
1780 		.name = "MS-9128",
1781 		.type = AC97_TUNE_ALC_JACK
1782 	},
1783 	{
1784 		.subvendor = 0x1014,
1785 		.subdevice = 0x0267,
1786 		.name = "IBM NetVista A30p",	/* AD1981B */
1787 		.type = AC97_TUNE_HP_ONLY
1788 	},
1789 	{
1790 		.subvendor = 0x1025,
1791 		.subdevice = 0x0082,
1792 		.name = "Acer Travelmate 2310",
1793 		.type = AC97_TUNE_HP_ONLY
1794 	},
1795 	{
1796 		.subvendor = 0x1025,
1797 		.subdevice = 0x0083,
1798 		.name = "Acer Aspire 3003LCi",
1799 		.type = AC97_TUNE_HP_ONLY
1800 	},
1801 	{
1802 		.subvendor = 0x1028,
1803 		.subdevice = 0x00d8,
1804 		.name = "Dell Precision 530",	/* AD1885 */
1805 		.type = AC97_TUNE_HP_ONLY
1806 	},
1807 	{
1808 		.subvendor = 0x1028,
1809 		.subdevice = 0x010d,
1810 		.name = "Dell",	/* which model?  AD1885 */
1811 		.type = AC97_TUNE_HP_ONLY
1812 	},
1813 	{
1814 		.subvendor = 0x1028,
1815 		.subdevice = 0x0126,
1816 		.name = "Dell Optiplex GX260",	/* AD1981A */
1817 		.type = AC97_TUNE_HP_ONLY
1818 	},
1819 	{
1820 		.subvendor = 0x1028,
1821 		.subdevice = 0x012c,
1822 		.name = "Dell Precision 650",	/* AD1981A */
1823 		.type = AC97_TUNE_HP_ONLY
1824 	},
1825 	{
1826 		.subvendor = 0x1028,
1827 		.subdevice = 0x012d,
1828 		.name = "Dell Precision 450",	/* AD1981B*/
1829 		.type = AC97_TUNE_HP_ONLY
1830 	},
1831 	{
1832 		.subvendor = 0x1028,
1833 		.subdevice = 0x0147,
1834 		.name = "Dell",	/* which model?  AD1981B*/
1835 		.type = AC97_TUNE_HP_ONLY
1836 	},
1837 	{
1838 		.subvendor = 0x1028,
1839 		.subdevice = 0x0151,
1840 		.name = "Dell Optiplex GX270",  /* AD1981B */
1841 		.type = AC97_TUNE_HP_ONLY
1842 	},
1843 	{
1844 		.subvendor = 0x1028,
1845 		.subdevice = 0x014e,
1846 		.name = "Dell D800", /* STAC9750/51 */
1847 		.type = AC97_TUNE_HP_ONLY
1848 	},
1849 	{
1850 		.subvendor = 0x1028,
1851 		.subdevice = 0x0163,
1852 		.name = "Dell Unknown",	/* STAC9750/51 */
1853 		.type = AC97_TUNE_HP_ONLY
1854 	},
1855 	{
1856 		.subvendor = 0x1028,
1857 		.subdevice = 0x016a,
1858 		.name = "Dell Inspiron 8600",	/* STAC9750/51 */
1859 		.type = AC97_TUNE_HP_ONLY
1860 	},
1861 	{
1862 		.subvendor = 0x1028,
1863 		.subdevice = 0x0186,
1864 		.name = "Dell Latitude D810", /* cf. Malone #41015 */
1865 		.type = AC97_TUNE_HP_MUTE_LED
1866 	},
1867 	{
1868 		.subvendor = 0x1028,
1869 		.subdevice = 0x0188,
1870 		.name = "Dell Inspiron 6000",
1871 		.type = AC97_TUNE_HP_MUTE_LED /* cf. Malone #41015 */
1872 	},
1873 	{
1874 		.subvendor = 0x1028,
1875 		.subdevice = 0x0191,
1876 		.name = "Dell Inspiron 8600",
1877 		.type = AC97_TUNE_HP_ONLY
1878 	},
1879 	{
1880 		.subvendor = 0x103c,
1881 		.subdevice = 0x006d,
1882 		.name = "HP zv5000",
1883 		.type = AC97_TUNE_MUTE_LED	/*AD1981B*/
1884 	},
1885 	{	/* FIXME: which codec? */
1886 		.subvendor = 0x103c,
1887 		.subdevice = 0x00c3,
1888 		.name = "HP xw6000",
1889 		.type = AC97_TUNE_HP_ONLY
1890 	},
1891 	{
1892 		.subvendor = 0x103c,
1893 		.subdevice = 0x088c,
1894 		.name = "HP nc8000",
1895 		.type = AC97_TUNE_HP_MUTE_LED
1896 	},
1897 	{
1898 		.subvendor = 0x103c,
1899 		.subdevice = 0x0890,
1900 		.name = "HP nc6000",
1901 		.type = AC97_TUNE_MUTE_LED
1902 	},
1903 	{
1904 		.subvendor = 0x103c,
1905 		.subdevice = 0x129d,
1906 		.name = "HP xw8000",
1907 		.type = AC97_TUNE_HP_ONLY
1908 	},
1909 	{
1910 		.subvendor = 0x103c,
1911 		.subdevice = 0x0938,
1912 		.name = "HP nc4200",
1913 		.type = AC97_TUNE_HP_MUTE_LED
1914 	},
1915 	{
1916 		.subvendor = 0x103c,
1917 		.subdevice = 0x099c,
1918 		.name = "HP nx6110/nc6120",
1919 		.type = AC97_TUNE_HP_MUTE_LED
1920 	},
1921 	{
1922 		.subvendor = 0x103c,
1923 		.subdevice = 0x0944,
1924 		.name = "HP nc6220",
1925 		.type = AC97_TUNE_HP_MUTE_LED
1926 	},
1927 	{
1928 		.subvendor = 0x103c,
1929 		.subdevice = 0x0934,
1930 		.name = "HP nc8220",
1931 		.type = AC97_TUNE_HP_MUTE_LED
1932 	},
1933 	{
1934 		.subvendor = 0x103c,
1935 		.subdevice = 0x12f1,
1936 		.name = "HP xw8200",	/* AD1981B*/
1937 		.type = AC97_TUNE_HP_ONLY
1938 	},
1939 	{
1940 		.subvendor = 0x103c,
1941 		.subdevice = 0x12f2,
1942 		.name = "HP xw6200",
1943 		.type = AC97_TUNE_HP_ONLY
1944 	},
1945 	{
1946 		.subvendor = 0x103c,
1947 		.subdevice = 0x3008,
1948 		.name = "HP xw4200",	/* AD1981B*/
1949 		.type = AC97_TUNE_HP_ONLY
1950 	},
1951 	{
1952 		.subvendor = 0x104d,
1953 		.subdevice = 0x8144,
1954 		.name = "Sony",
1955 		.type = AC97_TUNE_INV_EAPD
1956 	},
1957 	{
1958 		.subvendor = 0x104d,
1959 		.subdevice = 0x8197,
1960 		.name = "Sony S1XP",
1961 		.type = AC97_TUNE_INV_EAPD
1962 	},
1963 	{
1964 		.subvendor = 0x104d,
1965 		.subdevice = 0x81c0,
1966 		.name = "Sony VAIO VGN-T350P", /*AD1981B*/
1967 		.type = AC97_TUNE_INV_EAPD
1968 	},
1969 	{
1970 		.subvendor = 0x104d,
1971 		.subdevice = 0x81c5,
1972 		.name = "Sony VAIO VGN-B1VP", /*AD1981B*/
1973 		.type = AC97_TUNE_INV_EAPD
1974 	},
1975  	{
1976 		.subvendor = 0x1043,
1977 		.subdevice = 0x80f3,
1978 		.name = "ASUS ICH5/AD1985",
1979 		.type = AC97_TUNE_AD_SHARING
1980 	},
1981 	{
1982 		.subvendor = 0x10cf,
1983 		.subdevice = 0x11c3,
1984 		.name = "Fujitsu-Siemens E4010",
1985 		.type = AC97_TUNE_HP_ONLY
1986 	},
1987 	{
1988 		.subvendor = 0x10cf,
1989 		.subdevice = 0x1225,
1990 		.name = "Fujitsu-Siemens T3010",
1991 		.type = AC97_TUNE_HP_ONLY
1992 	},
1993 	{
1994 		.subvendor = 0x10cf,
1995 		.subdevice = 0x1253,
1996 		.name = "Fujitsu S6210",	/* STAC9750/51 */
1997 		.type = AC97_TUNE_HP_ONLY
1998 	},
1999 	{
2000 		.subvendor = 0x10cf,
2001 		.subdevice = 0x127d,
2002 		.name = "Fujitsu Lifebook P7010",
2003 		.type = AC97_TUNE_HP_ONLY
2004 	},
2005 	{
2006 		.subvendor = 0x10cf,
2007 		.subdevice = 0x127e,
2008 		.name = "Fujitsu Lifebook C1211D",
2009 		.type = AC97_TUNE_HP_ONLY
2010 	},
2011 	{
2012 		.subvendor = 0x10cf,
2013 		.subdevice = 0x12ec,
2014 		.name = "Fujitsu-Siemens 4010",
2015 		.type = AC97_TUNE_HP_ONLY
2016 	},
2017 	{
2018 		.subvendor = 0x10cf,
2019 		.subdevice = 0x12f2,
2020 		.name = "Fujitsu-Siemens Celsius H320",
2021 		.type = AC97_TUNE_SWAP_HP
2022 	},
2023 	{
2024 		.subvendor = 0x10f1,
2025 		.subdevice = 0x2665,
2026 		.name = "Fujitsu-Siemens Celsius",	/* AD1981? */
2027 		.type = AC97_TUNE_HP_ONLY
2028 	},
2029 	{
2030 		.subvendor = 0x10f1,
2031 		.subdevice = 0x2885,
2032 		.name = "AMD64 Mobo",	/* ALC650 */
2033 		.type = AC97_TUNE_HP_ONLY
2034 	},
2035 	{
2036 		.subvendor = 0x10f1,
2037 		.subdevice = 0x2895,
2038 		.name = "Tyan Thunder K8WE",
2039 		.type = AC97_TUNE_HP_ONLY
2040 	},
2041 	{
2042 		.subvendor = 0x10f7,
2043 		.subdevice = 0x834c,
2044 		.name = "Panasonic CF-R4",
2045 		.type = AC97_TUNE_HP_ONLY,
2046 	},
2047 	{
2048 		.subvendor = 0x110a,
2049 		.subdevice = 0x0056,
2050 		.name = "Fujitsu-Siemens Scenic",	/* AD1981? */
2051 		.type = AC97_TUNE_HP_ONLY
2052 	},
2053 	{
2054 		.subvendor = 0x11d4,
2055 		.subdevice = 0x5375,
2056 		.name = "ADI AD1985 (discrete)",
2057 		.type = AC97_TUNE_HP_ONLY
2058 	},
2059 	{
2060 		.subvendor = 0x1462,
2061 		.subdevice = 0x5470,
2062 		.name = "MSI P4 ATX 645 Ultra",
2063 		.type = AC97_TUNE_HP_ONLY
2064 	},
2065 	{
2066 		.subvendor = 0x161f,
2067 		.subdevice = 0x203a,
2068 		.name = "Gateway 4525GZ",		/* AD1981B */
2069 		.type = AC97_TUNE_INV_EAPD
2070 	},
2071 	{
2072 		.subvendor = 0x1734,
2073 		.subdevice = 0x0088,
2074 		.name = "Fujitsu-Siemens D1522",	/* AD1981 */
2075 		.type = AC97_TUNE_HP_ONLY
2076 	},
2077 	{
2078 		.subvendor = 0x8086,
2079 		.subdevice = 0x2000,
2080 		.mask = 0xfff0,
2081 		.name = "Intel ICH5/AD1985",
2082 		.type = AC97_TUNE_AD_SHARING
2083 	},
2084 	{
2085 		.subvendor = 0x8086,
2086 		.subdevice = 0x4000,
2087 		.mask = 0xfff0,
2088 		.name = "Intel ICH5/AD1985",
2089 		.type = AC97_TUNE_AD_SHARING
2090 	},
2091 	{
2092 		.subvendor = 0x8086,
2093 		.subdevice = 0x4856,
2094 		.name = "Intel D845WN (82801BA)",
2095 		.type = AC97_TUNE_SWAP_HP
2096 	},
2097 	{
2098 		.subvendor = 0x8086,
2099 		.subdevice = 0x4d44,
2100 		.name = "Intel D850EMV2",	/* AD1885 */
2101 		.type = AC97_TUNE_HP_ONLY
2102 	},
2103 	{
2104 		.subvendor = 0x8086,
2105 		.subdevice = 0x4d56,
2106 		.name = "Intel ICH/AD1885",
2107 		.type = AC97_TUNE_HP_ONLY
2108 	},
2109 	{
2110 		.subvendor = 0x8086,
2111 		.subdevice = 0x6000,
2112 		.mask = 0xfff0,
2113 		.name = "Intel ICH5/AD1985",
2114 		.type = AC97_TUNE_AD_SHARING
2115 	},
2116 	{
2117 		.subvendor = 0x8086,
2118 		.subdevice = 0xe000,
2119 		.mask = 0xfff0,
2120 		.name = "Intel ICH5/AD1985",
2121 		.type = AC97_TUNE_AD_SHARING
2122 	},
2123 #if 0 /* FIXME: this seems wrong on most boards */
2124 	{
2125 		.subvendor = 0x8086,
2126 		.subdevice = 0xa000,
2127 		.mask = 0xfff0,
2128 		.name = "Intel ICH5/AD1985",
2129 		.type = AC97_TUNE_HP_ONLY
2130 	},
2131 #endif
2132 	{ } /* terminator */
2133 };
2134 
2135 static int __devinit snd_intel8x0_mixer(struct intel8x0 *chip, int ac97_clock,
2136 					const char *quirk_override)
2137 {
2138 	struct snd_ac97_bus *pbus;
2139 	struct snd_ac97_template ac97;
2140 	int err;
2141 	unsigned int i, codecs;
2142 	unsigned int glob_sta = 0;
2143 	struct snd_ac97_bus_ops *ops;
2144 	static struct snd_ac97_bus_ops standard_bus_ops = {
2145 		.write = snd_intel8x0_codec_write,
2146 		.read = snd_intel8x0_codec_read,
2147 	};
2148 	static struct snd_ac97_bus_ops ali_bus_ops = {
2149 		.write = snd_intel8x0_ali_codec_write,
2150 		.read = snd_intel8x0_ali_codec_read,
2151 	};
2152 
2153 	chip->spdif_idx = -1; /* use PCMOUT (or disabled) */
2154 	if (!spdif_aclink) {
2155 		switch (chip->device_type) {
2156 		case DEVICE_NFORCE:
2157 			chip->spdif_idx = NVD_SPBAR;
2158 			break;
2159 		case DEVICE_ALI:
2160 			chip->spdif_idx = ALID_AC97SPDIFOUT;
2161 			break;
2162 		case DEVICE_INTEL_ICH4:
2163 			chip->spdif_idx = ICHD_SPBAR;
2164 			break;
2165 		};
2166 	}
2167 
2168 	chip->in_ac97_init = 1;
2169 
2170 	memset(&ac97, 0, sizeof(ac97));
2171 	ac97.private_data = chip;
2172 	ac97.private_free = snd_intel8x0_mixer_free_ac97;
2173 	ac97.scaps = AC97_SCAP_SKIP_MODEM | AC97_SCAP_POWER_SAVE;
2174 	if (chip->xbox)
2175 		ac97.scaps |= AC97_SCAP_DETECT_BY_VENDOR;
2176 	if (chip->device_type != DEVICE_ALI) {
2177 		glob_sta = igetdword(chip, ICHREG(GLOB_STA));
2178 		ops = &standard_bus_ops;
2179 		chip->in_sdin_init = 1;
2180 		codecs = 0;
2181 		for (i = 0; i < chip->max_codecs; i++) {
2182 			if (! (glob_sta & chip->codec_bit[i]))
2183 				continue;
2184 			if (chip->device_type == DEVICE_INTEL_ICH4) {
2185 				snd_intel8x0_codec_read_test(chip, codecs);
2186 				chip->ac97_sdin[codecs] =
2187 					igetbyte(chip, ICHREG(SDM)) & ICH_LDI_MASK;
2188 				if (snd_BUG_ON(chip->ac97_sdin[codecs] >= 3))
2189 					chip->ac97_sdin[codecs] = 0;
2190 			} else
2191 				chip->ac97_sdin[codecs] = i;
2192 			codecs++;
2193 		}
2194 		chip->in_sdin_init = 0;
2195 		if (! codecs)
2196 			codecs = 1;
2197 	} else {
2198 		ops = &ali_bus_ops;
2199 		codecs = 1;
2200 		/* detect the secondary codec */
2201 		for (i = 0; i < 100; i++) {
2202 			unsigned int reg = igetdword(chip, ICHREG(ALI_RTSR));
2203 			if (reg & 0x40) {
2204 				codecs = 2;
2205 				break;
2206 			}
2207 			iputdword(chip, ICHREG(ALI_RTSR), reg | 0x40);
2208 			udelay(1);
2209 		}
2210 	}
2211 	if ((err = snd_ac97_bus(chip->card, 0, ops, chip, &pbus)) < 0)
2212 		goto __err;
2213 	pbus->private_free = snd_intel8x0_mixer_free_ac97_bus;
2214 	if (ac97_clock >= 8000 && ac97_clock <= 48000)
2215 		pbus->clock = ac97_clock;
2216 	/* FIXME: my test board doesn't work well with VRA... */
2217 	if (chip->device_type == DEVICE_ALI)
2218 		pbus->no_vra = 1;
2219 	else
2220 		pbus->dra = 1;
2221 	chip->ac97_bus = pbus;
2222 	chip->ncodecs = codecs;
2223 
2224 	ac97.pci = chip->pci;
2225 	for (i = 0; i < codecs; i++) {
2226 		ac97.num = i;
2227 		if ((err = snd_ac97_mixer(pbus, &ac97, &chip->ac97[i])) < 0) {
2228 			if (err != -EACCES)
2229 				snd_printk(KERN_ERR "Unable to initialize codec #%d\n", i);
2230 			if (i == 0)
2231 				goto __err;
2232 		}
2233 	}
2234 	/* tune up the primary codec */
2235 	snd_ac97_tune_hardware(chip->ac97[0], ac97_quirks, quirk_override);
2236 	/* enable separate SDINs for ICH4 */
2237 	if (chip->device_type == DEVICE_INTEL_ICH4)
2238 		pbus->isdin = 1;
2239 	/* find the available PCM streams */
2240 	i = ARRAY_SIZE(ac97_pcm_defs);
2241 	if (chip->device_type != DEVICE_INTEL_ICH4)
2242 		i -= 2;		/* do not allocate PCM2IN and MIC2 */
2243 	if (chip->spdif_idx < 0)
2244 		i--;		/* do not allocate S/PDIF */
2245 	err = snd_ac97_pcm_assign(pbus, i, ac97_pcm_defs);
2246 	if (err < 0)
2247 		goto __err;
2248 	chip->ichd[ICHD_PCMOUT].pcm = &pbus->pcms[0];
2249 	chip->ichd[ICHD_PCMIN].pcm = &pbus->pcms[1];
2250 	chip->ichd[ICHD_MIC].pcm = &pbus->pcms[2];
2251 	if (chip->spdif_idx >= 0)
2252 		chip->ichd[chip->spdif_idx].pcm = &pbus->pcms[3];
2253 	if (chip->device_type == DEVICE_INTEL_ICH4) {
2254 		chip->ichd[ICHD_PCM2IN].pcm = &pbus->pcms[4];
2255 		chip->ichd[ICHD_MIC2].pcm = &pbus->pcms[5];
2256 	}
2257 	/* enable separate SDINs for ICH4 */
2258 	if (chip->device_type == DEVICE_INTEL_ICH4) {
2259 		struct ac97_pcm *pcm = chip->ichd[ICHD_PCM2IN].pcm;
2260 		u8 tmp = igetbyte(chip, ICHREG(SDM));
2261 		tmp &= ~(ICH_DI2L_MASK|ICH_DI1L_MASK);
2262 		if (pcm) {
2263 			tmp |= ICH_SE;	/* steer enable for multiple SDINs */
2264 			tmp |= chip->ac97_sdin[0] << ICH_DI1L_SHIFT;
2265 			for (i = 1; i < 4; i++) {
2266 				if (pcm->r[0].codec[i]) {
2267 					tmp |= chip->ac97_sdin[pcm->r[0].codec[1]->num] << ICH_DI2L_SHIFT;
2268 					break;
2269 				}
2270 			}
2271 		} else {
2272 			tmp &= ~ICH_SE; /* steer disable */
2273 		}
2274 		iputbyte(chip, ICHREG(SDM), tmp);
2275 	}
2276 	if (pbus->pcms[0].r[0].slots & (1 << AC97_SLOT_PCM_SLEFT)) {
2277 		chip->multi4 = 1;
2278 		if (pbus->pcms[0].r[0].slots & (1 << AC97_SLOT_LFE)) {
2279 			chip->multi6 = 1;
2280 			if (chip->ac97[0]->flags & AC97_HAS_8CH)
2281 				chip->multi8 = 1;
2282 		}
2283 	}
2284 	if (pbus->pcms[0].r[1].rslots[0]) {
2285 		chip->dra = 1;
2286 	}
2287 	if (chip->device_type == DEVICE_INTEL_ICH4) {
2288 		if ((igetdword(chip, ICHREG(GLOB_STA)) & ICH_SAMPLE_CAP) == ICH_SAMPLE_16_20)
2289 			chip->smp20bit = 1;
2290 	}
2291 	if (chip->device_type == DEVICE_NFORCE && !spdif_aclink) {
2292 		/* 48kHz only */
2293 		chip->ichd[chip->spdif_idx].pcm->rates = SNDRV_PCM_RATE_48000;
2294 	}
2295 	if (chip->device_type == DEVICE_INTEL_ICH4 && !spdif_aclink) {
2296 		/* use slot 10/11 for SPDIF */
2297 		u32 val;
2298 		val = igetdword(chip, ICHREG(GLOB_CNT)) & ~ICH_PCM_SPDIF_MASK;
2299 		val |= ICH_PCM_SPDIF_1011;
2300 		iputdword(chip, ICHREG(GLOB_CNT), val);
2301 		snd_ac97_update_bits(chip->ac97[0], AC97_EXTENDED_STATUS, 0x03 << 4, 0x03 << 4);
2302 	}
2303 	chip->in_ac97_init = 0;
2304 	return 0;
2305 
2306  __err:
2307 	/* clear the cold-reset bit for the next chance */
2308 	if (chip->device_type != DEVICE_ALI)
2309 		iputdword(chip, ICHREG(GLOB_CNT),
2310 			  igetdword(chip, ICHREG(GLOB_CNT)) & ~ICH_AC97COLD);
2311 	return err;
2312 }
2313 
2314 
2315 /*
2316  *
2317  */
2318 
2319 static void do_ali_reset(struct intel8x0 *chip)
2320 {
2321 	iputdword(chip, ICHREG(ALI_SCR), ICH_ALI_SC_RESET);
2322 	iputdword(chip, ICHREG(ALI_FIFOCR1), 0x83838383);
2323 	iputdword(chip, ICHREG(ALI_FIFOCR2), 0x83838383);
2324 	iputdword(chip, ICHREG(ALI_FIFOCR3), 0x83838383);
2325 	iputdword(chip, ICHREG(ALI_INTERFACECR),
2326 		  ICH_ALI_IF_PI|ICH_ALI_IF_PO);
2327 	iputdword(chip, ICHREG(ALI_INTERRUPTCR), 0x00000000);
2328 	iputdword(chip, ICHREG(ALI_INTERRUPTSR), 0x00000000);
2329 }
2330 
2331 #ifdef CONFIG_SND_AC97_POWER_SAVE
2332 static struct snd_pci_quirk ich_chip_reset_mode[] = {
2333 	SND_PCI_QUIRK(0x1014, 0x051f, "Thinkpad R32", 1),
2334 	{ } /* end */
2335 };
2336 
2337 static int snd_intel8x0_ich_chip_cold_reset(struct intel8x0 *chip)
2338 {
2339 	unsigned int cnt;
2340 	/* ACLink on, 2 channels */
2341 
2342 	if (snd_pci_quirk_lookup(chip->pci, ich_chip_reset_mode))
2343 		return -EIO;
2344 
2345 	cnt = igetdword(chip, ICHREG(GLOB_CNT));
2346 	cnt &= ~(ICH_ACLINK | ICH_PCM_246_MASK);
2347 
2348 	/* do cold reset - the full ac97 powerdown may leave the controller
2349 	 * in a warm state but actually it cannot communicate with the codec.
2350 	 */
2351 	iputdword(chip, ICHREG(GLOB_CNT), cnt & ~ICH_AC97COLD);
2352 	cnt = igetdword(chip, ICHREG(GLOB_CNT));
2353 	udelay(10);
2354 	iputdword(chip, ICHREG(GLOB_CNT), cnt | ICH_AC97COLD);
2355 	msleep(1);
2356 	return 0;
2357 }
2358 #define snd_intel8x0_ich_chip_can_cold_reset(chip) \
2359 	(!snd_pci_quirk_lookup(chip->pci, ich_chip_reset_mode))
2360 #else
2361 #define snd_intel8x0_ich_chip_cold_reset(chip)	0
2362 #define snd_intel8x0_ich_chip_can_cold_reset(chip) (0)
2363 #endif
2364 
2365 static int snd_intel8x0_ich_chip_reset(struct intel8x0 *chip)
2366 {
2367 	unsigned long end_time;
2368 	unsigned int cnt;
2369 	/* ACLink on, 2 channels */
2370 	cnt = igetdword(chip, ICHREG(GLOB_CNT));
2371 	cnt &= ~(ICH_ACLINK | ICH_PCM_246_MASK);
2372 	/* finish cold or do warm reset */
2373 	cnt |= (cnt & ICH_AC97COLD) == 0 ? ICH_AC97COLD : ICH_AC97WARM;
2374 	iputdword(chip, ICHREG(GLOB_CNT), cnt);
2375 	end_time = (jiffies + (HZ / 4)) + 1;
2376 	do {
2377 		if ((igetdword(chip, ICHREG(GLOB_CNT)) & ICH_AC97WARM) == 0)
2378 			return 0;
2379 		schedule_timeout_uninterruptible(1);
2380 	} while (time_after_eq(end_time, jiffies));
2381 	snd_printk(KERN_ERR "AC'97 warm reset still in progress? [0x%x]\n",
2382 		   igetdword(chip, ICHREG(GLOB_CNT)));
2383 	return -EIO;
2384 }
2385 
2386 static int snd_intel8x0_ich_chip_init(struct intel8x0 *chip, int probing)
2387 {
2388 	unsigned long end_time;
2389 	unsigned int status, nstatus;
2390 	unsigned int cnt;
2391 	int err;
2392 
2393 	/* put logic to right state */
2394 	/* first clear status bits */
2395 	status = ICH_RCS | ICH_MCINT | ICH_POINT | ICH_PIINT;
2396 	if (chip->device_type == DEVICE_NFORCE)
2397 		status |= ICH_NVSPINT;
2398 	cnt = igetdword(chip, ICHREG(GLOB_STA));
2399 	iputdword(chip, ICHREG(GLOB_STA), cnt & status);
2400 
2401 	if (snd_intel8x0_ich_chip_can_cold_reset(chip))
2402 		err = snd_intel8x0_ich_chip_cold_reset(chip);
2403 	else
2404 		err = snd_intel8x0_ich_chip_reset(chip);
2405 	if (err < 0)
2406 		return err;
2407 
2408 	if (probing) {
2409 		/* wait for any codec ready status.
2410 		 * Once it becomes ready it should remain ready
2411 		 * as long as we do not disable the ac97 link.
2412 		 */
2413 		end_time = jiffies + HZ;
2414 		do {
2415 			status = igetdword(chip, ICHREG(GLOB_STA)) &
2416 				chip->codec_isr_bits;
2417 			if (status)
2418 				break;
2419 			schedule_timeout_uninterruptible(1);
2420 		} while (time_after_eq(end_time, jiffies));
2421 		if (! status) {
2422 			/* no codec is found */
2423 			snd_printk(KERN_ERR "codec_ready: codec is not ready [0x%x]\n",
2424 				   igetdword(chip, ICHREG(GLOB_STA)));
2425 			return -EIO;
2426 		}
2427 
2428 		/* wait for other codecs ready status. */
2429 		end_time = jiffies + HZ / 4;
2430 		while (status != chip->codec_isr_bits &&
2431 		       time_after_eq(end_time, jiffies)) {
2432 			schedule_timeout_uninterruptible(1);
2433 			status |= igetdword(chip, ICHREG(GLOB_STA)) &
2434 				chip->codec_isr_bits;
2435 		}
2436 
2437 	} else {
2438 		/* resume phase */
2439 		int i;
2440 		status = 0;
2441 		for (i = 0; i < chip->ncodecs; i++)
2442 			if (chip->ac97[i])
2443 				status |= chip->codec_bit[chip->ac97_sdin[i]];
2444 		/* wait until all the probed codecs are ready */
2445 		end_time = jiffies + HZ;
2446 		do {
2447 			nstatus = igetdword(chip, ICHREG(GLOB_STA)) &
2448 				chip->codec_isr_bits;
2449 			if (status == nstatus)
2450 				break;
2451 			schedule_timeout_uninterruptible(1);
2452 		} while (time_after_eq(end_time, jiffies));
2453 	}
2454 
2455 	if (chip->device_type == DEVICE_SIS) {
2456 		/* unmute the output on SIS7012 */
2457 		iputword(chip, 0x4c, igetword(chip, 0x4c) | 1);
2458 	}
2459 	if (chip->device_type == DEVICE_NFORCE && !spdif_aclink) {
2460 		/* enable SPDIF interrupt */
2461 		unsigned int val;
2462 		pci_read_config_dword(chip->pci, 0x4c, &val);
2463 		val |= 0x1000000;
2464 		pci_write_config_dword(chip->pci, 0x4c, val);
2465 	}
2466       	return 0;
2467 }
2468 
2469 static int snd_intel8x0_ali_chip_init(struct intel8x0 *chip, int probing)
2470 {
2471 	u32 reg;
2472 	int i = 0;
2473 
2474 	reg = igetdword(chip, ICHREG(ALI_SCR));
2475 	if ((reg & 2) == 0)	/* Cold required */
2476 		reg |= 2;
2477 	else
2478 		reg |= 1;	/* Warm */
2479 	reg &= ~0x80000000;	/* ACLink on */
2480 	iputdword(chip, ICHREG(ALI_SCR), reg);
2481 
2482 	for (i = 0; i < HZ / 2; i++) {
2483 		if (! (igetdword(chip, ICHREG(ALI_INTERRUPTSR)) & ALI_INT_GPIO))
2484 			goto __ok;
2485 		schedule_timeout_uninterruptible(1);
2486 	}
2487 	snd_printk(KERN_ERR "AC'97 reset failed.\n");
2488 	if (probing)
2489 		return -EIO;
2490 
2491  __ok:
2492 	for (i = 0; i < HZ / 2; i++) {
2493 		reg = igetdword(chip, ICHREG(ALI_RTSR));
2494 		if (reg & 0x80) /* primary codec */
2495 			break;
2496 		iputdword(chip, ICHREG(ALI_RTSR), reg | 0x80);
2497 		schedule_timeout_uninterruptible(1);
2498 	}
2499 
2500 	do_ali_reset(chip);
2501 	return 0;
2502 }
2503 
2504 static int snd_intel8x0_chip_init(struct intel8x0 *chip, int probing)
2505 {
2506 	unsigned int i, timeout;
2507 	int err;
2508 
2509 	if (chip->device_type != DEVICE_ALI) {
2510 		if ((err = snd_intel8x0_ich_chip_init(chip, probing)) < 0)
2511 			return err;
2512 		iagetword(chip, 0);	/* clear semaphore flag */
2513 	} else {
2514 		if ((err = snd_intel8x0_ali_chip_init(chip, probing)) < 0)
2515 			return err;
2516 	}
2517 
2518 	/* disable interrupts */
2519 	for (i = 0; i < chip->bdbars_count; i++)
2520 		iputbyte(chip, ICH_REG_OFF_CR + chip->ichd[i].reg_offset, 0x00);
2521 	/* reset channels */
2522 	for (i = 0; i < chip->bdbars_count; i++)
2523 		iputbyte(chip, ICH_REG_OFF_CR + chip->ichd[i].reg_offset, ICH_RESETREGS);
2524 	for (i = 0; i < chip->bdbars_count; i++) {
2525 	        timeout = 100000;
2526 	        while (--timeout != 0) {
2527         		if ((igetbyte(chip, ICH_REG_OFF_CR + chip->ichd[i].reg_offset) & ICH_RESETREGS) == 0)
2528         		        break;
2529                 }
2530                 if (timeout == 0)
2531                         printk(KERN_ERR "intel8x0: reset of registers failed?\n");
2532         }
2533 	/* initialize Buffer Descriptor Lists */
2534 	for (i = 0; i < chip->bdbars_count; i++)
2535 		iputdword(chip, ICH_REG_OFF_BDBAR + chip->ichd[i].reg_offset,
2536 			  chip->ichd[i].bdbar_addr);
2537 	return 0;
2538 }
2539 
2540 static int snd_intel8x0_free(struct intel8x0 *chip)
2541 {
2542 	unsigned int i;
2543 
2544 	if (chip->irq < 0)
2545 		goto __hw_end;
2546 	/* disable interrupts */
2547 	for (i = 0; i < chip->bdbars_count; i++)
2548 		iputbyte(chip, ICH_REG_OFF_CR + chip->ichd[i].reg_offset, 0x00);
2549 	/* reset channels */
2550 	for (i = 0; i < chip->bdbars_count; i++)
2551 		iputbyte(chip, ICH_REG_OFF_CR + chip->ichd[i].reg_offset, ICH_RESETREGS);
2552 	if (chip->device_type == DEVICE_NFORCE && !spdif_aclink) {
2553 		/* stop the spdif interrupt */
2554 		unsigned int val;
2555 		pci_read_config_dword(chip->pci, 0x4c, &val);
2556 		val &= ~0x1000000;
2557 		pci_write_config_dword(chip->pci, 0x4c, val);
2558 	}
2559 	/* --- */
2560 
2561       __hw_end:
2562 	if (chip->irq >= 0)
2563 		free_irq(chip->irq, chip);
2564 	if (chip->bdbars.area) {
2565 		if (chip->fix_nocache)
2566 			fill_nocache(chip->bdbars.area, chip->bdbars.bytes, 0);
2567 		snd_dma_free_pages(&chip->bdbars);
2568 	}
2569 	if (chip->addr)
2570 		pci_iounmap(chip->pci, chip->addr);
2571 	if (chip->bmaddr)
2572 		pci_iounmap(chip->pci, chip->bmaddr);
2573 	pci_release_regions(chip->pci);
2574 	pci_disable_device(chip->pci);
2575 	kfree(chip);
2576 	return 0;
2577 }
2578 
2579 #ifdef CONFIG_PM
2580 /*
2581  * power management
2582  */
2583 static int intel8x0_suspend(struct pci_dev *pci, pm_message_t state)
2584 {
2585 	struct snd_card *card = pci_get_drvdata(pci);
2586 	struct intel8x0 *chip = card->private_data;
2587 	int i;
2588 
2589 	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
2590 	for (i = 0; i < chip->pcm_devs; i++)
2591 		snd_pcm_suspend_all(chip->pcm[i]);
2592 	/* clear nocache */
2593 	if (chip->fix_nocache) {
2594 		for (i = 0; i < chip->bdbars_count; i++) {
2595 			struct ichdev *ichdev = &chip->ichd[i];
2596 			if (ichdev->substream && ichdev->page_attr_changed) {
2597 				struct snd_pcm_runtime *runtime = ichdev->substream->runtime;
2598 				if (runtime->dma_area)
2599 					fill_nocache(runtime->dma_area, runtime->dma_bytes, 0);
2600 			}
2601 		}
2602 	}
2603 	for (i = 0; i < chip->ncodecs; i++)
2604 		snd_ac97_suspend(chip->ac97[i]);
2605 	if (chip->device_type == DEVICE_INTEL_ICH4)
2606 		chip->sdm_saved = igetbyte(chip, ICHREG(SDM));
2607 
2608 	if (chip->irq >= 0) {
2609 		free_irq(chip->irq, chip);
2610 		chip->irq = -1;
2611 	}
2612 	pci_disable_device(pci);
2613 	pci_save_state(pci);
2614 	/* The call below may disable built-in speaker on some laptops
2615 	 * after S2RAM.  So, don't touch it.
2616 	 */
2617 	/* pci_set_power_state(pci, pci_choose_state(pci, state)); */
2618 	return 0;
2619 }
2620 
2621 static int intel8x0_resume(struct pci_dev *pci)
2622 {
2623 	struct snd_card *card = pci_get_drvdata(pci);
2624 	struct intel8x0 *chip = card->private_data;
2625 	int i;
2626 
2627 	pci_set_power_state(pci, PCI_D0);
2628 	pci_restore_state(pci);
2629 	if (pci_enable_device(pci) < 0) {
2630 		printk(KERN_ERR "intel8x0: pci_enable_device failed, "
2631 		       "disabling device\n");
2632 		snd_card_disconnect(card);
2633 		return -EIO;
2634 	}
2635 	pci_set_master(pci);
2636 	snd_intel8x0_chip_init(chip, 0);
2637 	if (request_irq(pci->irq, snd_intel8x0_interrupt,
2638 			IRQF_SHARED, card->shortname, chip)) {
2639 		printk(KERN_ERR "intel8x0: unable to grab IRQ %d, "
2640 		       "disabling device\n", pci->irq);
2641 		snd_card_disconnect(card);
2642 		return -EIO;
2643 	}
2644 	chip->irq = pci->irq;
2645 	synchronize_irq(chip->irq);
2646 
2647 	/* re-initialize mixer stuff */
2648 	if (chip->device_type == DEVICE_INTEL_ICH4 && !spdif_aclink) {
2649 		/* enable separate SDINs for ICH4 */
2650 		iputbyte(chip, ICHREG(SDM), chip->sdm_saved);
2651 		/* use slot 10/11 for SPDIF */
2652 		iputdword(chip, ICHREG(GLOB_CNT),
2653 			  (igetdword(chip, ICHREG(GLOB_CNT)) & ~ICH_PCM_SPDIF_MASK) |
2654 			  ICH_PCM_SPDIF_1011);
2655 	}
2656 
2657 	/* refill nocache */
2658 	if (chip->fix_nocache)
2659 		fill_nocache(chip->bdbars.area, chip->bdbars.bytes, 1);
2660 
2661 	for (i = 0; i < chip->ncodecs; i++)
2662 		snd_ac97_resume(chip->ac97[i]);
2663 
2664 	/* refill nocache */
2665 	if (chip->fix_nocache) {
2666 		for (i = 0; i < chip->bdbars_count; i++) {
2667 			struct ichdev *ichdev = &chip->ichd[i];
2668 			if (ichdev->substream && ichdev->page_attr_changed) {
2669 				struct snd_pcm_runtime *runtime = ichdev->substream->runtime;
2670 				if (runtime->dma_area)
2671 					fill_nocache(runtime->dma_area, runtime->dma_bytes, 1);
2672 			}
2673 		}
2674 	}
2675 
2676 	/* resume status */
2677 	for (i = 0; i < chip->bdbars_count; i++) {
2678 		struct ichdev *ichdev = &chip->ichd[i];
2679 		unsigned long port = ichdev->reg_offset;
2680 		if (! ichdev->substream || ! ichdev->suspended)
2681 			continue;
2682 		if (ichdev->ichd == ICHD_PCMOUT)
2683 			snd_intel8x0_setup_pcm_out(chip, ichdev->substream->runtime);
2684 		iputdword(chip, port + ICH_REG_OFF_BDBAR, ichdev->bdbar_addr);
2685 		iputbyte(chip, port + ICH_REG_OFF_LVI, ichdev->lvi);
2686 		iputbyte(chip, port + ICH_REG_OFF_CIV, ichdev->civ);
2687 		iputbyte(chip, port + ichdev->roff_sr, ICH_FIFOE | ICH_BCIS | ICH_LVBCI);
2688 	}
2689 
2690 	snd_power_change_state(card, SNDRV_CTL_POWER_D0);
2691 	return 0;
2692 }
2693 #endif /* CONFIG_PM */
2694 
2695 #define INTEL8X0_TESTBUF_SIZE	32768	/* enough large for one shot */
2696 
2697 static void __devinit intel8x0_measure_ac97_clock(struct intel8x0 *chip)
2698 {
2699 	struct snd_pcm_substream *subs;
2700 	struct ichdev *ichdev;
2701 	unsigned long port;
2702 	unsigned long pos, pos1, t;
2703 	int civ, timeout = 1000, attempt = 1;
2704 	struct timespec start_time, stop_time;
2705 
2706 	if (chip->ac97_bus->clock != 48000)
2707 		return; /* specified in module option */
2708 
2709       __again:
2710 	subs = chip->pcm[0]->streams[0].substream;
2711 	if (! subs || subs->dma_buffer.bytes < INTEL8X0_TESTBUF_SIZE) {
2712 		snd_printk(KERN_WARNING "no playback buffer allocated - aborting measure ac97 clock\n");
2713 		return;
2714 	}
2715 	ichdev = &chip->ichd[ICHD_PCMOUT];
2716 	ichdev->physbuf = subs->dma_buffer.addr;
2717 	ichdev->size = ichdev->fragsize = INTEL8X0_TESTBUF_SIZE;
2718 	ichdev->substream = NULL; /* don't process interrupts */
2719 
2720 	/* set rate */
2721 	if (snd_ac97_set_rate(chip->ac97[0], AC97_PCM_FRONT_DAC_RATE, 48000) < 0) {
2722 		snd_printk(KERN_ERR "cannot set ac97 rate: clock = %d\n", chip->ac97_bus->clock);
2723 		return;
2724 	}
2725 	snd_intel8x0_setup_periods(chip, ichdev);
2726 	port = ichdev->reg_offset;
2727 	spin_lock_irq(&chip->reg_lock);
2728 	chip->in_measurement = 1;
2729 	/* trigger */
2730 	if (chip->device_type != DEVICE_ALI)
2731 		iputbyte(chip, port + ICH_REG_OFF_CR, ICH_IOCE | ICH_STARTBM);
2732 	else {
2733 		iputbyte(chip, port + ICH_REG_OFF_CR, ICH_IOCE);
2734 		iputdword(chip, ICHREG(ALI_DMACR), 1 << ichdev->ali_slot);
2735 	}
2736 	do_posix_clock_monotonic_gettime(&start_time);
2737 	spin_unlock_irq(&chip->reg_lock);
2738 	msleep(50);
2739 	spin_lock_irq(&chip->reg_lock);
2740 	/* check the position */
2741 	do {
2742 		civ = igetbyte(chip, ichdev->reg_offset + ICH_REG_OFF_CIV);
2743 		pos1 = igetword(chip, ichdev->reg_offset + ichdev->roff_picb);
2744 		if (pos1 == 0) {
2745 			udelay(10);
2746 			continue;
2747 		}
2748 		if (civ == igetbyte(chip, ichdev->reg_offset + ICH_REG_OFF_CIV) &&
2749 		    pos1 == igetword(chip, ichdev->reg_offset + ichdev->roff_picb))
2750 			break;
2751 	} while (timeout--);
2752 	if (pos1 == 0) {	/* oops, this value is not reliable */
2753 		pos = 0;
2754 	} else {
2755 		pos = ichdev->fragsize1;
2756 		pos -= pos1 << ichdev->pos_shift;
2757 		pos += ichdev->position;
2758 	}
2759 	chip->in_measurement = 0;
2760 	do_posix_clock_monotonic_gettime(&stop_time);
2761 	/* stop */
2762 	if (chip->device_type == DEVICE_ALI) {
2763 		iputdword(chip, ICHREG(ALI_DMACR), 1 << (ichdev->ali_slot + 16));
2764 		iputbyte(chip, port + ICH_REG_OFF_CR, 0);
2765 		while (igetbyte(chip, port + ICH_REG_OFF_CR))
2766 			;
2767 	} else {
2768 		iputbyte(chip, port + ICH_REG_OFF_CR, 0);
2769 		while (!(igetbyte(chip, port + ichdev->roff_sr) & ICH_DCH))
2770 			;
2771 	}
2772 	iputbyte(chip, port + ICH_REG_OFF_CR, ICH_RESETREGS);
2773 	spin_unlock_irq(&chip->reg_lock);
2774 
2775 	if (pos == 0) {
2776 		snd_printk(KERN_ERR "intel8x0: measure - unreliable DMA position..\n");
2777 	      __retry:
2778 		if (attempt < 3) {
2779 			msleep(300);
2780 			attempt++;
2781 			goto __again;
2782 		}
2783 		goto __end;
2784 	}
2785 
2786 	pos /= 4;
2787 	t = stop_time.tv_sec - start_time.tv_sec;
2788 	t *= 1000000;
2789 	t += (stop_time.tv_nsec - start_time.tv_nsec) / 1000;
2790 	printk(KERN_INFO "%s: measured %lu usecs (%lu samples)\n", __func__, t, pos);
2791 	if (t == 0) {
2792 		snd_printk(KERN_ERR "intel8x0: ?? calculation error..\n");
2793 		goto __retry;
2794 	}
2795 	pos *= 1000;
2796 	pos = (pos / t) * 1000 + ((pos % t) * 1000) / t;
2797 	if (pos < 40000 || pos >= 60000) {
2798 		/* abnormal value. hw problem? */
2799 		printk(KERN_INFO "intel8x0: measured clock %ld rejected\n", pos);
2800 		goto __retry;
2801 	} else if (pos > 40500 && pos < 41500)
2802 		/* first exception - 41000Hz reference clock */
2803 		chip->ac97_bus->clock = 41000;
2804 	else if (pos > 43600 && pos < 44600)
2805 		/* second exception - 44100HZ reference clock */
2806 		chip->ac97_bus->clock = 44100;
2807 	else if (pos < 47500 || pos > 48500)
2808 		/* not 48000Hz, tuning the clock.. */
2809 		chip->ac97_bus->clock = (chip->ac97_bus->clock * 48000) / pos;
2810       __end:
2811 	printk(KERN_INFO "intel8x0: clocking to %d\n", chip->ac97_bus->clock);
2812 	snd_ac97_update_power(chip->ac97[0], AC97_PCM_FRONT_DAC_RATE, 0);
2813 }
2814 
2815 static struct snd_pci_quirk intel8x0_clock_list[] __devinitdata = {
2816 	SND_PCI_QUIRK(0x0e11, 0x008a, "AD1885", 41000),
2817 	SND_PCI_QUIRK(0x1028, 0x00be, "AD1885", 44100),
2818 	SND_PCI_QUIRK(0x1028, 0x0177, "AD1980", 48000),
2819 	SND_PCI_QUIRK(0x1028, 0x01ad, "AD1981B", 48000),
2820 	SND_PCI_QUIRK(0x1043, 0x80f3, "AD1985", 48000),
2821 	{ }	/* terminator */
2822 };
2823 
2824 static int __devinit intel8x0_in_clock_list(struct intel8x0 *chip)
2825 {
2826 	struct pci_dev *pci = chip->pci;
2827 	const struct snd_pci_quirk *wl;
2828 
2829 	wl = snd_pci_quirk_lookup(pci, intel8x0_clock_list);
2830 	if (!wl)
2831 		return 0;
2832 	printk(KERN_INFO "intel8x0: white list rate for %04x:%04x is %i\n",
2833 	       pci->subsystem_vendor, pci->subsystem_device, wl->value);
2834 	chip->ac97_bus->clock = wl->value;
2835 	return 1;
2836 }
2837 
2838 #ifdef CONFIG_PROC_FS
2839 static void snd_intel8x0_proc_read(struct snd_info_entry * entry,
2840 				   struct snd_info_buffer *buffer)
2841 {
2842 	struct intel8x0 *chip = entry->private_data;
2843 	unsigned int tmp;
2844 
2845 	snd_iprintf(buffer, "Intel8x0\n\n");
2846 	if (chip->device_type == DEVICE_ALI)
2847 		return;
2848 	tmp = igetdword(chip, ICHREG(GLOB_STA));
2849 	snd_iprintf(buffer, "Global control        : 0x%08x\n", igetdword(chip, ICHREG(GLOB_CNT)));
2850 	snd_iprintf(buffer, "Global status         : 0x%08x\n", tmp);
2851 	if (chip->device_type == DEVICE_INTEL_ICH4)
2852 		snd_iprintf(buffer, "SDM                   : 0x%08x\n", igetdword(chip, ICHREG(SDM)));
2853 	snd_iprintf(buffer, "AC'97 codecs ready    :");
2854 	if (tmp & chip->codec_isr_bits) {
2855 		int i;
2856 		static const char *codecs[3] = {
2857 			"primary", "secondary", "tertiary"
2858 		};
2859 		for (i = 0; i < chip->max_codecs; i++)
2860 			if (tmp & chip->codec_bit[i])
2861 				snd_iprintf(buffer, " %s", codecs[i]);
2862 	} else
2863 		snd_iprintf(buffer, " none");
2864 	snd_iprintf(buffer, "\n");
2865 	if (chip->device_type == DEVICE_INTEL_ICH4 ||
2866 	    chip->device_type == DEVICE_SIS)
2867 		snd_iprintf(buffer, "AC'97 codecs SDIN     : %i %i %i\n",
2868 			chip->ac97_sdin[0],
2869 			chip->ac97_sdin[1],
2870 			chip->ac97_sdin[2]);
2871 }
2872 
2873 static void __devinit snd_intel8x0_proc_init(struct intel8x0 * chip)
2874 {
2875 	struct snd_info_entry *entry;
2876 
2877 	if (! snd_card_proc_new(chip->card, "intel8x0", &entry))
2878 		snd_info_set_text_ops(entry, chip, snd_intel8x0_proc_read);
2879 }
2880 #else
2881 #define snd_intel8x0_proc_init(x)
2882 #endif
2883 
2884 static int snd_intel8x0_dev_free(struct snd_device *device)
2885 {
2886 	struct intel8x0 *chip = device->device_data;
2887 	return snd_intel8x0_free(chip);
2888 }
2889 
2890 struct ich_reg_info {
2891 	unsigned int int_sta_mask;
2892 	unsigned int offset;
2893 };
2894 
2895 static unsigned int ich_codec_bits[3] = {
2896 	ICH_PCR, ICH_SCR, ICH_TCR
2897 };
2898 static unsigned int sis_codec_bits[3] = {
2899 	ICH_PCR, ICH_SCR, ICH_SIS_TCR
2900 };
2901 
2902 static int __devinit snd_intel8x0_create(struct snd_card *card,
2903 					 struct pci_dev *pci,
2904 					 unsigned long device_type,
2905 					 struct intel8x0 ** r_intel8x0)
2906 {
2907 	struct intel8x0 *chip;
2908 	int err;
2909 	unsigned int i;
2910 	unsigned int int_sta_masks;
2911 	struct ichdev *ichdev;
2912 	static struct snd_device_ops ops = {
2913 		.dev_free =	snd_intel8x0_dev_free,
2914 	};
2915 
2916 	static unsigned int bdbars[] = {
2917 		3, /* DEVICE_INTEL */
2918 		6, /* DEVICE_INTEL_ICH4 */
2919 		3, /* DEVICE_SIS */
2920 		6, /* DEVICE_ALI */
2921 		4, /* DEVICE_NFORCE */
2922 	};
2923 	static struct ich_reg_info intel_regs[6] = {
2924 		{ ICH_PIINT, 0 },
2925 		{ ICH_POINT, 0x10 },
2926 		{ ICH_MCINT, 0x20 },
2927 		{ ICH_M2INT, 0x40 },
2928 		{ ICH_P2INT, 0x50 },
2929 		{ ICH_SPINT, 0x60 },
2930 	};
2931 	static struct ich_reg_info nforce_regs[4] = {
2932 		{ ICH_PIINT, 0 },
2933 		{ ICH_POINT, 0x10 },
2934 		{ ICH_MCINT, 0x20 },
2935 		{ ICH_NVSPINT, 0x70 },
2936 	};
2937 	static struct ich_reg_info ali_regs[6] = {
2938 		{ ALI_INT_PCMIN, 0x40 },
2939 		{ ALI_INT_PCMOUT, 0x50 },
2940 		{ ALI_INT_MICIN, 0x60 },
2941 		{ ALI_INT_CODECSPDIFOUT, 0x70 },
2942 		{ ALI_INT_SPDIFIN, 0xa0 },
2943 		{ ALI_INT_SPDIFOUT, 0xb0 },
2944 	};
2945 	struct ich_reg_info *tbl;
2946 
2947 	*r_intel8x0 = NULL;
2948 
2949 	if ((err = pci_enable_device(pci)) < 0)
2950 		return err;
2951 
2952 	chip = kzalloc(sizeof(*chip), GFP_KERNEL);
2953 	if (chip == NULL) {
2954 		pci_disable_device(pci);
2955 		return -ENOMEM;
2956 	}
2957 	spin_lock_init(&chip->reg_lock);
2958 	chip->device_type = device_type;
2959 	chip->card = card;
2960 	chip->pci = pci;
2961 	chip->irq = -1;
2962 
2963 	/* module parameters */
2964 	chip->buggy_irq = buggy_irq;
2965 	chip->buggy_semaphore = buggy_semaphore;
2966 	if (xbox)
2967 		chip->xbox = 1;
2968 
2969 	if (pci->vendor == PCI_VENDOR_ID_INTEL &&
2970 	    pci->device == PCI_DEVICE_ID_INTEL_440MX)
2971 		chip->fix_nocache = 1; /* enable workaround */
2972 
2973 	if ((err = pci_request_regions(pci, card->shortname)) < 0) {
2974 		kfree(chip);
2975 		pci_disable_device(pci);
2976 		return err;
2977 	}
2978 
2979 	if (device_type == DEVICE_ALI) {
2980 		/* ALI5455 has no ac97 region */
2981 		chip->bmaddr = pci_iomap(pci, 0, 0);
2982 		goto port_inited;
2983 	}
2984 
2985 	if (pci_resource_flags(pci, 2) & IORESOURCE_MEM) /* ICH4 and Nforce */
2986 		chip->addr = pci_iomap(pci, 2, 0);
2987 	else
2988 		chip->addr = pci_iomap(pci, 0, 0);
2989 	if (!chip->addr) {
2990 		snd_printk(KERN_ERR "AC'97 space ioremap problem\n");
2991 		snd_intel8x0_free(chip);
2992 		return -EIO;
2993 	}
2994 	if (pci_resource_flags(pci, 3) & IORESOURCE_MEM) /* ICH4 */
2995 		chip->bmaddr = pci_iomap(pci, 3, 0);
2996 	else
2997 		chip->bmaddr = pci_iomap(pci, 1, 0);
2998 	if (!chip->bmaddr) {
2999 		snd_printk(KERN_ERR "Controller space ioremap problem\n");
3000 		snd_intel8x0_free(chip);
3001 		return -EIO;
3002 	}
3003 
3004  port_inited:
3005 	chip->bdbars_count = bdbars[device_type];
3006 
3007 	/* initialize offsets */
3008 	switch (device_type) {
3009 	case DEVICE_NFORCE:
3010 		tbl = nforce_regs;
3011 		break;
3012 	case DEVICE_ALI:
3013 		tbl = ali_regs;
3014 		break;
3015 	default:
3016 		tbl = intel_regs;
3017 		break;
3018 	}
3019 	for (i = 0; i < chip->bdbars_count; i++) {
3020 		ichdev = &chip->ichd[i];
3021 		ichdev->ichd = i;
3022 		ichdev->reg_offset = tbl[i].offset;
3023 		ichdev->int_sta_mask = tbl[i].int_sta_mask;
3024 		if (device_type == DEVICE_SIS) {
3025 			/* SiS 7012 swaps the registers */
3026 			ichdev->roff_sr = ICH_REG_OFF_PICB;
3027 			ichdev->roff_picb = ICH_REG_OFF_SR;
3028 		} else {
3029 			ichdev->roff_sr = ICH_REG_OFF_SR;
3030 			ichdev->roff_picb = ICH_REG_OFF_PICB;
3031 		}
3032 		if (device_type == DEVICE_ALI)
3033 			ichdev->ali_slot = (ichdev->reg_offset - 0x40) / 0x10;
3034 		/* SIS7012 handles the pcm data in bytes, others are in samples */
3035 		ichdev->pos_shift = (device_type == DEVICE_SIS) ? 0 : 1;
3036 	}
3037 
3038 	/* allocate buffer descriptor lists */
3039 	/* the start of each lists must be aligned to 8 bytes */
3040 	if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci),
3041 				chip->bdbars_count * sizeof(u32) * ICH_MAX_FRAGS * 2,
3042 				&chip->bdbars) < 0) {
3043 		snd_intel8x0_free(chip);
3044 		snd_printk(KERN_ERR "intel8x0: cannot allocate buffer descriptors\n");
3045 		return -ENOMEM;
3046 	}
3047 	/* tables must be aligned to 8 bytes here, but the kernel pages
3048 	   are much bigger, so we don't care (on i386) */
3049 	/* workaround for 440MX */
3050 	if (chip->fix_nocache)
3051 		fill_nocache(chip->bdbars.area, chip->bdbars.bytes, 1);
3052 	int_sta_masks = 0;
3053 	for (i = 0; i < chip->bdbars_count; i++) {
3054 		ichdev = &chip->ichd[i];
3055 		ichdev->bdbar = ((u32 *)chip->bdbars.area) +
3056 			(i * ICH_MAX_FRAGS * 2);
3057 		ichdev->bdbar_addr = chip->bdbars.addr +
3058 			(i * sizeof(u32) * ICH_MAX_FRAGS * 2);
3059 		int_sta_masks |= ichdev->int_sta_mask;
3060 	}
3061 	chip->int_sta_reg = device_type == DEVICE_ALI ?
3062 		ICH_REG_ALI_INTERRUPTSR : ICH_REG_GLOB_STA;
3063 	chip->int_sta_mask = int_sta_masks;
3064 
3065 	pci_set_master(pci);
3066 
3067 	switch(chip->device_type) {
3068 	case DEVICE_INTEL_ICH4:
3069 		/* ICH4 can have three codecs */
3070 		chip->max_codecs = 3;
3071 		chip->codec_bit = ich_codec_bits;
3072 		chip->codec_ready_bits = ICH_PRI | ICH_SRI | ICH_TRI;
3073 		break;
3074 	case DEVICE_SIS:
3075 		/* recent SIS7012 can have three codecs */
3076 		chip->max_codecs = 3;
3077 		chip->codec_bit = sis_codec_bits;
3078 		chip->codec_ready_bits = ICH_PRI | ICH_SRI | ICH_SIS_TRI;
3079 		break;
3080 	default:
3081 		/* others up to two codecs */
3082 		chip->max_codecs = 2;
3083 		chip->codec_bit = ich_codec_bits;
3084 		chip->codec_ready_bits = ICH_PRI | ICH_SRI;
3085 		break;
3086 	}
3087 	for (i = 0; i < chip->max_codecs; i++)
3088 		chip->codec_isr_bits |= chip->codec_bit[i];
3089 
3090 	if ((err = snd_intel8x0_chip_init(chip, 1)) < 0) {
3091 		snd_intel8x0_free(chip);
3092 		return err;
3093 	}
3094 
3095 	/* request irq after initializaing int_sta_mask, etc */
3096 	if (request_irq(pci->irq, snd_intel8x0_interrupt,
3097 			IRQF_SHARED, card->shortname, chip)) {
3098 		snd_printk(KERN_ERR "unable to grab IRQ %d\n", pci->irq);
3099 		snd_intel8x0_free(chip);
3100 		return -EBUSY;
3101 	}
3102 	chip->irq = pci->irq;
3103 
3104 	if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
3105 		snd_intel8x0_free(chip);
3106 		return err;
3107 	}
3108 
3109 	snd_card_set_dev(card, &pci->dev);
3110 
3111 	*r_intel8x0 = chip;
3112 	return 0;
3113 }
3114 
3115 static struct shortname_table {
3116 	unsigned int id;
3117 	const char *s;
3118 } shortnames[] __devinitdata = {
3119 	{ PCI_DEVICE_ID_INTEL_82801AA_5, "Intel 82801AA-ICH" },
3120 	{ PCI_DEVICE_ID_INTEL_82801AB_5, "Intel 82901AB-ICH0" },
3121 	{ PCI_DEVICE_ID_INTEL_82801BA_4, "Intel 82801BA-ICH2" },
3122 	{ PCI_DEVICE_ID_INTEL_440MX, "Intel 440MX" },
3123 	{ PCI_DEVICE_ID_INTEL_82801CA_5, "Intel 82801CA-ICH3" },
3124 	{ PCI_DEVICE_ID_INTEL_82801DB_5, "Intel 82801DB-ICH4" },
3125 	{ PCI_DEVICE_ID_INTEL_82801EB_5, "Intel ICH5" },
3126 	{ PCI_DEVICE_ID_INTEL_ESB_5, "Intel 6300ESB" },
3127 	{ PCI_DEVICE_ID_INTEL_ICH6_18, "Intel ICH6" },
3128 	{ PCI_DEVICE_ID_INTEL_ICH7_20, "Intel ICH7" },
3129 	{ PCI_DEVICE_ID_INTEL_ESB2_14, "Intel ESB2" },
3130 	{ PCI_DEVICE_ID_SI_7012, "SiS SI7012" },
3131 	{ PCI_DEVICE_ID_NVIDIA_MCP1_AUDIO, "NVidia nForce" },
3132 	{ PCI_DEVICE_ID_NVIDIA_MCP2_AUDIO, "NVidia nForce2" },
3133 	{ PCI_DEVICE_ID_NVIDIA_MCP3_AUDIO, "NVidia nForce3" },
3134 	{ PCI_DEVICE_ID_NVIDIA_CK8S_AUDIO, "NVidia CK8S" },
3135 	{ PCI_DEVICE_ID_NVIDIA_CK804_AUDIO, "NVidia CK804" },
3136 	{ PCI_DEVICE_ID_NVIDIA_CK8_AUDIO, "NVidia CK8" },
3137 	{ 0x003a, "NVidia MCP04" },
3138 	{ 0x746d, "AMD AMD8111" },
3139 	{ 0x7445, "AMD AMD768" },
3140 	{ 0x5455, "ALi M5455" },
3141 	{ 0, NULL },
3142 };
3143 
3144 static struct snd_pci_quirk spdif_aclink_defaults[] __devinitdata = {
3145 	SND_PCI_QUIRK(0x147b, 0x1c1a, "ASUS KN8", 1),
3146 	{ } /* end */
3147 };
3148 
3149 /* look up white/black list for SPDIF over ac-link */
3150 static int __devinit check_default_spdif_aclink(struct pci_dev *pci)
3151 {
3152 	const struct snd_pci_quirk *w;
3153 
3154 	w = snd_pci_quirk_lookup(pci, spdif_aclink_defaults);
3155 	if (w) {
3156 		if (w->value)
3157 			snd_printdd(KERN_INFO "intel8x0: Using SPDIF over "
3158 				    "AC-Link for %s\n", w->name);
3159 		else
3160 			snd_printdd(KERN_INFO "intel8x0: Using integrated "
3161 				    "SPDIF DMA for %s\n", w->name);
3162 		return w->value;
3163 	}
3164 	return 0;
3165 }
3166 
3167 static int __devinit snd_intel8x0_probe(struct pci_dev *pci,
3168 					const struct pci_device_id *pci_id)
3169 {
3170 	struct snd_card *card;
3171 	struct intel8x0 *chip;
3172 	int err;
3173 	struct shortname_table *name;
3174 
3175 	err = snd_card_create(index, id, THIS_MODULE, 0, &card);
3176 	if (err < 0)
3177 		return err;
3178 
3179 	if (spdif_aclink < 0)
3180 		spdif_aclink = check_default_spdif_aclink(pci);
3181 
3182 	strcpy(card->driver, "ICH");
3183 	if (!spdif_aclink) {
3184 		switch (pci_id->driver_data) {
3185 		case DEVICE_NFORCE:
3186 			strcpy(card->driver, "NFORCE");
3187 			break;
3188 		case DEVICE_INTEL_ICH4:
3189 			strcpy(card->driver, "ICH4");
3190 		}
3191 	}
3192 
3193 	strcpy(card->shortname, "Intel ICH");
3194 	for (name = shortnames; name->id; name++) {
3195 		if (pci->device == name->id) {
3196 			strcpy(card->shortname, name->s);
3197 			break;
3198 		}
3199 	}
3200 
3201 	if (buggy_irq < 0) {
3202 		/* some Nforce[2] and ICH boards have problems with IRQ handling.
3203 		 * Needs to return IRQ_HANDLED for unknown irqs.
3204 		 */
3205 		if (pci_id->driver_data == DEVICE_NFORCE)
3206 			buggy_irq = 1;
3207 		else
3208 			buggy_irq = 0;
3209 	}
3210 
3211 	if ((err = snd_intel8x0_create(card, pci, pci_id->driver_data,
3212 				       &chip)) < 0) {
3213 		snd_card_free(card);
3214 		return err;
3215 	}
3216 	card->private_data = chip;
3217 
3218 	if ((err = snd_intel8x0_mixer(chip, ac97_clock, ac97_quirk)) < 0) {
3219 		snd_card_free(card);
3220 		return err;
3221 	}
3222 	if ((err = snd_intel8x0_pcm(chip)) < 0) {
3223 		snd_card_free(card);
3224 		return err;
3225 	}
3226 
3227 	snd_intel8x0_proc_init(chip);
3228 
3229 	snprintf(card->longname, sizeof(card->longname),
3230 		 "%s with %s at irq %i", card->shortname,
3231 		 snd_ac97_get_short_name(chip->ac97[0]), chip->irq);
3232 
3233 	if (ac97_clock == 0 || ac97_clock == 1) {
3234 		if (ac97_clock == 0) {
3235 			if (intel8x0_in_clock_list(chip) == 0)
3236 				intel8x0_measure_ac97_clock(chip);
3237 		} else {
3238 			intel8x0_measure_ac97_clock(chip);
3239 		}
3240 	}
3241 
3242 	if ((err = snd_card_register(card)) < 0) {
3243 		snd_card_free(card);
3244 		return err;
3245 	}
3246 	pci_set_drvdata(pci, card);
3247 	return 0;
3248 }
3249 
3250 static void __devexit snd_intel8x0_remove(struct pci_dev *pci)
3251 {
3252 	snd_card_free(pci_get_drvdata(pci));
3253 	pci_set_drvdata(pci, NULL);
3254 }
3255 
3256 static struct pci_driver driver = {
3257 	.name = "Intel ICH",
3258 	.id_table = snd_intel8x0_ids,
3259 	.probe = snd_intel8x0_probe,
3260 	.remove = __devexit_p(snd_intel8x0_remove),
3261 #ifdef CONFIG_PM
3262 	.suspend = intel8x0_suspend,
3263 	.resume = intel8x0_resume,
3264 #endif
3265 };
3266 
3267 
3268 static int __init alsa_card_intel8x0_init(void)
3269 {
3270 	return pci_register_driver(&driver);
3271 }
3272 
3273 static void __exit alsa_card_intel8x0_exit(void)
3274 {
3275 	pci_unregister_driver(&driver);
3276 }
3277 
3278 module_init(alsa_card_intel8x0_init)
3279 module_exit(alsa_card_intel8x0_exit)
3280