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
45MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
46MODULE_DESCRIPTION("Intel 82801AA,82901AB,i810,i820,i830,i840,i845,MX440; SiS 7012; Ali 5455");
47MODULE_LICENSE("GPL");
48MODULE_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
72static int index = SNDRV_DEFAULT_IDX1;	/* Index 0-MAX */
73static char *id = SNDRV_DEFAULT_STR1;	/* ID for this card */
74static int ac97_clock;
75static char *ac97_quirk;
76static int buggy_semaphore;
77static int buggy_irq = -1; /* auto-check */
78static int xbox;
79static int spdif_aclink = -1;
80
81module_param(index, int, 0444);
82MODULE_PARM_DESC(index, "Index value for Intel i8x0 soundcard.");
83module_param(id, charp, 0444);
84MODULE_PARM_DESC(id, "ID string for Intel i8x0 soundcard.");
85module_param(ac97_clock, int, 0444);
86MODULE_PARM_DESC(ac97_clock, "AC'97 codec clock (0 = whitelist + auto-detect, 1 = force autodetect).");
87module_param(ac97_quirk, charp, 0444);
88MODULE_PARM_DESC(ac97_quirk, "AC'97 workaround for strange hardware.");
89module_param(buggy_semaphore, bool, 0444);
90MODULE_PARM_DESC(buggy_semaphore, "Enable workaround for hardwares with problematic codec semaphores.");
91module_param(buggy_irq, bool, 0444);
92MODULE_PARM_DESC(buggy_irq, "Enable workaround for buggy interrupts on some motherboards.");
93module_param(xbox, bool, 0444);
94MODULE_PARM_DESC(xbox, "Set to 1 for Xbox, if you have problems with the AC'97 codec detection.");
95module_param(spdif_aclink, int, 0444);
96MODULE_PARM_DESC(spdif_aclink, "S/PDIF over AC-link.");
97
98/* just for backward compatibility */
99static int enable;
100module_param(enable, bool, 0444);
101static int joystick;
102module_param(joystick, int, 0444);
103
104/*
105 *  Direct registers
106 */
107enum { 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) \
112enum { \
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 */
123DEFINE_REGSET(OFF, 0);		/* offset */
124DEFINE_REGSET(PI, 0x00);	/* PCM in */
125DEFINE_REGSET(PO, 0x10);	/* PCM out */
126DEFINE_REGSET(MC, 0x20);	/* Mic in */
127
128/* ICH4 busmaster blocks */
129DEFINE_REGSET(MC2, 0x40);	/* Mic in 2 */
130DEFINE_REGSET(PI2, 0x50);	/* PCM in 2 */
131DEFINE_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 */
227DEFINE_REGSET(AL_PI, 0x40);	/* ALi PCM in */
228DEFINE_REGSET(AL_PO, 0x50);	/* Ali PCM out */
229DEFINE_REGSET(AL_MC, 0x60);	/* Ali Mic in */
230DEFINE_REGSET(AL_CDC_SPO, 0x70);	/* Ali Codec SPDIF out */
231DEFINE_REGSET(AL_CENTER, 0x80);		/* Ali center out */
232DEFINE_REGSET(AL_LFE, 0x90);		/* Ali center out */
233DEFINE_REGSET(AL_CLR_SPI, 0xa0);	/* Ali Controller SPDIF in */
234DEFINE_REGSET(AL_CLR_SPO, 0xb0);	/* Ali Controller SPDIF out */
235DEFINE_REGSET(AL_I2S, 0xc0);	/* Ali I2S in */
236DEFINE_REGSET(AL_PI2, 0xd0);	/* Ali PCM2 in */
237DEFINE_REGSET(AL_MC2, 0xe0);	/* Ali Mic2 in */
238
239enum {
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
318enum {
319	ICHD_PCMIN,
320	ICHD_PCMOUT,
321	ICHD_MIC,
322	ICHD_MIC2,
323	ICHD_PCM2IN,
324	ICHD_SPBAR,
325	ICHD_LAST = ICHD_SPBAR
326};
327enum {
328	NVD_PCMIN,
329	NVD_PCMOUT,
330	NVD_MIC,
331	NVD_SPBAR,
332	NVD_LAST = NVD_SPBAR
333};
334enum {
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
346struct 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
376struct 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
423static DEFINE_PCI_DEVICE_TABLE(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
450MODULE_DEVICE_TABLE(pci, snd_intel8x0_ids);
451
452/*
453 *  Lowlevel I/O - busmaster
454 */
455
456static inline u8 igetbyte(struct intel8x0 *chip, u32 offset)
457{
458	return ioread8(chip->bmaddr + offset);
459}
460
461static inline u16 igetword(struct intel8x0 *chip, u32 offset)
462{
463	return ioread16(chip->bmaddr + offset);
464}
465
466static inline u32 igetdword(struct intel8x0 *chip, u32 offset)
467{
468	return ioread32(chip->bmaddr + offset);
469}
470
471static inline void iputbyte(struct intel8x0 *chip, u32 offset, u8 val)
472{
473	iowrite8(val, chip->bmaddr + offset);
474}
475
476static inline void iputword(struct intel8x0 *chip, u32 offset, u16 val)
477{
478	iowrite16(val, chip->bmaddr + offset);
479}
480
481static 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
490static inline u16 iagetword(struct intel8x0 *chip, u32 offset)
491{
492	return ioread16(chip->addr + offset);
493}
494
495static 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
508static 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 existent) 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
547static 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
560static 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
585static 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 */
603static 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
616static 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
628static 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
646static 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 */
664static 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://download.intel.com/design/chipsets/specupdt/24505108.pdf
720 */
721static 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
737static 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
793static 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
830static 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
868static 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
923static 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
962static 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
978static 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
1033static 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
1051static 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
1095static 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
1116static unsigned int channels4[] = {
1117	2, 4,
1118};
1119
1120static struct snd_pcm_hw_constraint_list hw_constraints_channels4 = {
1121	.count = ARRAY_SIZE(channels4),
1122	.list = channels4,
1123	.mask = 0,
1124};
1125
1126static unsigned int channels6[] = {
1127	2, 4, 6,
1128};
1129
1130static struct snd_pcm_hw_constraint_list hw_constraints_channels6 = {
1131	.count = ARRAY_SIZE(channels6),
1132	.list = channels6,
1133	.mask = 0,
1134};
1135
1136static unsigned int channels8[] = {
1137	2, 4, 6, 8,
1138};
1139
1140static struct snd_pcm_hw_constraint_list hw_constraints_channels8 = {
1141	.count = ARRAY_SIZE(channels8),
1142	.list = channels8,
1143	.mask = 0,
1144};
1145
1146static 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
1166static 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
1200static 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
1208static 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
1215static 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
1223static 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
1230static 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
1238static 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
1245static 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
1253static 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
1260static 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
1268static 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
1276static 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
1285static 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
1300static 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
1316static 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
1323static 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
1331static 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
1338static 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
1347static 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
1358static 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
1369static 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
1380static 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
1391static 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
1402static 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
1413static 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
1424static 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
1435static 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
1446static 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
1458static 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
1469static 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
1481struct 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
1490static 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
1527static 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
1564static 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
1587static 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
1619static 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
1670static 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
1676static 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
1682static 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
1752static 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 = 0x0534,
1780		.name = "ThinkPad X31",
1781		.type = AC97_TUNE_INV_EAPD
1782	},
1783	{
1784		.subvendor = 0x1014,
1785		.subdevice = 0x1f00,
1786		.name = "MS-9128",
1787		.type = AC97_TUNE_ALC_JACK
1788	},
1789	{
1790		.subvendor = 0x1014,
1791		.subdevice = 0x0267,
1792		.name = "IBM NetVista A30p",	/* AD1981B */
1793		.type = AC97_TUNE_HP_ONLY
1794	},
1795	{
1796		.subvendor = 0x1025,
1797		.subdevice = 0x0082,
1798		.name = "Acer Travelmate 2310",
1799		.type = AC97_TUNE_HP_ONLY
1800	},
1801	{
1802		.subvendor = 0x1025,
1803		.subdevice = 0x0083,
1804		.name = "Acer Aspire 3003LCi",
1805		.type = AC97_TUNE_HP_ONLY
1806	},
1807	{
1808		.subvendor = 0x1028,
1809		.subdevice = 0x00d8,
1810		.name = "Dell Precision 530",	/* AD1885 */
1811		.type = AC97_TUNE_HP_ONLY
1812	},
1813	{
1814		.subvendor = 0x1028,
1815		.subdevice = 0x010d,
1816		.name = "Dell",	/* which model?  AD1885 */
1817		.type = AC97_TUNE_HP_ONLY
1818	},
1819	{
1820		.subvendor = 0x1028,
1821		.subdevice = 0x0126,
1822		.name = "Dell Optiplex GX260",	/* AD1981A */
1823		.type = AC97_TUNE_HP_ONLY
1824	},
1825	{
1826		.subvendor = 0x1028,
1827		.subdevice = 0x012c,
1828		.name = "Dell Precision 650",	/* AD1981A */
1829		.type = AC97_TUNE_HP_ONLY
1830	},
1831	{
1832		.subvendor = 0x1028,
1833		.subdevice = 0x012d,
1834		.name = "Dell Precision 450",	/* AD1981B*/
1835		.type = AC97_TUNE_HP_ONLY
1836	},
1837	{
1838		.subvendor = 0x1028,
1839		.subdevice = 0x0147,
1840		.name = "Dell",	/* which model?  AD1981B*/
1841		.type = AC97_TUNE_HP_ONLY
1842	},
1843	{
1844		.subvendor = 0x1028,
1845		.subdevice = 0x0151,
1846		.name = "Dell Optiplex GX270",  /* AD1981B */
1847		.type = AC97_TUNE_HP_ONLY
1848	},
1849	{
1850		.subvendor = 0x1028,
1851		.subdevice = 0x014e,
1852		.name = "Dell D800", /* STAC9750/51 */
1853		.type = AC97_TUNE_HP_ONLY
1854	},
1855	{
1856		.subvendor = 0x1028,
1857		.subdevice = 0x0163,
1858		.name = "Dell Unknown",	/* STAC9750/51 */
1859		.type = AC97_TUNE_HP_ONLY
1860	},
1861	{
1862		.subvendor = 0x1028,
1863		.subdevice = 0x016a,
1864		.name = "Dell Inspiron 8600",	/* STAC9750/51 */
1865		.type = AC97_TUNE_HP_ONLY
1866	},
1867	{
1868		.subvendor = 0x1028,
1869		.subdevice = 0x0182,
1870		.name = "Dell Latitude D610",	/* STAC9750/51 */
1871		.type = AC97_TUNE_HP_ONLY
1872	},
1873	{
1874		.subvendor = 0x1028,
1875		.subdevice = 0x0186,
1876		.name = "Dell Latitude D810", /* cf. Malone #41015 */
1877		.type = AC97_TUNE_HP_MUTE_LED
1878	},
1879	{
1880		.subvendor = 0x1028,
1881		.subdevice = 0x0188,
1882		.name = "Dell Inspiron 6000",
1883		.type = AC97_TUNE_HP_MUTE_LED /* cf. Malone #41015 */
1884	},
1885	{
1886		.subvendor = 0x1028,
1887		.subdevice = 0x0191,
1888		.name = "Dell Inspiron 8600",
1889		.type = AC97_TUNE_HP_ONLY
1890	},
1891	{
1892		.subvendor = 0x103c,
1893		.subdevice = 0x006d,
1894		.name = "HP zv5000",
1895		.type = AC97_TUNE_MUTE_LED	/*AD1981B*/
1896	},
1897	{	/* FIXME: which codec? */
1898		.subvendor = 0x103c,
1899		.subdevice = 0x00c3,
1900		.name = "HP xw6000",
1901		.type = AC97_TUNE_HP_ONLY
1902	},
1903	{
1904		.subvendor = 0x103c,
1905		.subdevice = 0x088c,
1906		.name = "HP nc8000",
1907		.type = AC97_TUNE_HP_MUTE_LED
1908	},
1909	{
1910		.subvendor = 0x103c,
1911		.subdevice = 0x0890,
1912		.name = "HP nc6000",
1913		.type = AC97_TUNE_MUTE_LED
1914	},
1915	{
1916		.subvendor = 0x103c,
1917		.subdevice = 0x129d,
1918		.name = "HP xw8000",
1919		.type = AC97_TUNE_HP_ONLY
1920	},
1921	{
1922		.subvendor = 0x103c,
1923		.subdevice = 0x0938,
1924		.name = "HP nc4200",
1925		.type = AC97_TUNE_HP_MUTE_LED
1926	},
1927	{
1928		.subvendor = 0x103c,
1929		.subdevice = 0x099c,
1930		.name = "HP nx6110/nc6120",
1931		.type = AC97_TUNE_HP_MUTE_LED
1932	},
1933	{
1934		.subvendor = 0x103c,
1935		.subdevice = 0x0944,
1936		.name = "HP nc6220",
1937		.type = AC97_TUNE_HP_MUTE_LED
1938	},
1939	{
1940		.subvendor = 0x103c,
1941		.subdevice = 0x0934,
1942		.name = "HP nc8220",
1943		.type = AC97_TUNE_HP_MUTE_LED
1944	},
1945	{
1946		.subvendor = 0x103c,
1947		.subdevice = 0x12f1,
1948		.name = "HP xw8200",	/* AD1981B*/
1949		.type = AC97_TUNE_HP_ONLY
1950	},
1951	{
1952		.subvendor = 0x103c,
1953		.subdevice = 0x12f2,
1954		.name = "HP xw6200",
1955		.type = AC97_TUNE_HP_ONLY
1956	},
1957	{
1958		.subvendor = 0x103c,
1959		.subdevice = 0x3008,
1960		.name = "HP xw4200",	/* AD1981B*/
1961		.type = AC97_TUNE_HP_ONLY
1962	},
1963	{
1964		.subvendor = 0x104d,
1965		.subdevice = 0x8144,
1966		.name = "Sony",
1967		.type = AC97_TUNE_INV_EAPD
1968	},
1969	{
1970		.subvendor = 0x104d,
1971		.subdevice = 0x8197,
1972		.name = "Sony S1XP",
1973		.type = AC97_TUNE_INV_EAPD
1974	},
1975	{
1976		.subvendor = 0x104d,
1977		.subdevice = 0x81c0,
1978		.name = "Sony VAIO VGN-T350P", /*AD1981B*/
1979		.type = AC97_TUNE_INV_EAPD
1980	},
1981	{
1982		.subvendor = 0x104d,
1983		.subdevice = 0x81c5,
1984		.name = "Sony VAIO VGN-B1VP", /*AD1981B*/
1985		.type = AC97_TUNE_INV_EAPD
1986	},
1987 	{
1988		.subvendor = 0x1043,
1989		.subdevice = 0x80f3,
1990		.name = "ASUS ICH5/AD1985",
1991		.type = AC97_TUNE_AD_SHARING
1992	},
1993	{
1994		.subvendor = 0x10cf,
1995		.subdevice = 0x11c3,
1996		.name = "Fujitsu-Siemens E4010",
1997		.type = AC97_TUNE_HP_ONLY
1998	},
1999	{
2000		.subvendor = 0x10cf,
2001		.subdevice = 0x1225,
2002		.name = "Fujitsu-Siemens T3010",
2003		.type = AC97_TUNE_HP_ONLY
2004	},
2005	{
2006		.subvendor = 0x10cf,
2007		.subdevice = 0x1253,
2008		.name = "Fujitsu S6210",	/* STAC9750/51 */
2009		.type = AC97_TUNE_HP_ONLY
2010	},
2011	{
2012		.subvendor = 0x10cf,
2013		.subdevice = 0x127d,
2014		.name = "Fujitsu Lifebook P7010",
2015		.type = AC97_TUNE_HP_ONLY
2016	},
2017	{
2018		.subvendor = 0x10cf,
2019		.subdevice = 0x127e,
2020		.name = "Fujitsu Lifebook C1211D",
2021		.type = AC97_TUNE_HP_ONLY
2022	},
2023	{
2024		.subvendor = 0x10cf,
2025		.subdevice = 0x12ec,
2026		.name = "Fujitsu-Siemens 4010",
2027		.type = AC97_TUNE_HP_ONLY
2028	},
2029	{
2030		.subvendor = 0x10cf,
2031		.subdevice = 0x12f2,
2032		.name = "Fujitsu-Siemens Celsius H320",
2033		.type = AC97_TUNE_SWAP_HP
2034	},
2035	{
2036		.subvendor = 0x10f1,
2037		.subdevice = 0x2665,
2038		.name = "Fujitsu-Siemens Celsius",	/* AD1981? */
2039		.type = AC97_TUNE_HP_ONLY
2040	},
2041	{
2042		.subvendor = 0x10f1,
2043		.subdevice = 0x2885,
2044		.name = "AMD64 Mobo",	/* ALC650 */
2045		.type = AC97_TUNE_HP_ONLY
2046	},
2047	{
2048		.subvendor = 0x10f1,
2049		.subdevice = 0x2895,
2050		.name = "Tyan Thunder K8WE",
2051		.type = AC97_TUNE_HP_ONLY
2052	},
2053	{
2054		.subvendor = 0x10f7,
2055		.subdevice = 0x834c,
2056		.name = "Panasonic CF-R4",
2057		.type = AC97_TUNE_HP_ONLY,
2058	},
2059	{
2060		.subvendor = 0x110a,
2061		.subdevice = 0x0056,
2062		.name = "Fujitsu-Siemens Scenic",	/* AD1981? */
2063		.type = AC97_TUNE_HP_ONLY
2064	},
2065	{
2066		.subvendor = 0x11d4,
2067		.subdevice = 0x5375,
2068		.name = "ADI AD1985 (discrete)",
2069		.type = AC97_TUNE_HP_ONLY
2070	},
2071	{
2072		.subvendor = 0x1462,
2073		.subdevice = 0x5470,
2074		.name = "MSI P4 ATX 645 Ultra",
2075		.type = AC97_TUNE_HP_ONLY
2076	},
2077	{
2078		.subvendor = 0x161f,
2079		.subdevice = 0x202f,
2080		.name = "Gateway M520",
2081		.type = AC97_TUNE_INV_EAPD
2082	},
2083	{
2084		.subvendor = 0x161f,
2085		.subdevice = 0x203a,
2086		.name = "Gateway 4525GZ",		/* AD1981B */
2087		.type = AC97_TUNE_INV_EAPD
2088	},
2089	{
2090		.subvendor = 0x1734,
2091		.subdevice = 0x0088,
2092		.name = "Fujitsu-Siemens D1522",	/* AD1981 */
2093		.type = AC97_TUNE_HP_ONLY
2094	},
2095	{
2096		.subvendor = 0x8086,
2097		.subdevice = 0x2000,
2098		.mask = 0xfff0,
2099		.name = "Intel ICH5/AD1985",
2100		.type = AC97_TUNE_AD_SHARING
2101	},
2102	{
2103		.subvendor = 0x8086,
2104		.subdevice = 0x4000,
2105		.mask = 0xfff0,
2106		.name = "Intel ICH5/AD1985",
2107		.type = AC97_TUNE_AD_SHARING
2108	},
2109	{
2110		.subvendor = 0x8086,
2111		.subdevice = 0x4856,
2112		.name = "Intel D845WN (82801BA)",
2113		.type = AC97_TUNE_SWAP_HP
2114	},
2115	{
2116		.subvendor = 0x8086,
2117		.subdevice = 0x4d44,
2118		.name = "Intel D850EMV2",	/* AD1885 */
2119		.type = AC97_TUNE_HP_ONLY
2120	},
2121	{
2122		.subvendor = 0x8086,
2123		.subdevice = 0x4d56,
2124		.name = "Intel ICH/AD1885",
2125		.type = AC97_TUNE_HP_ONLY
2126	},
2127	{
2128		.subvendor = 0x8086,
2129		.subdevice = 0x6000,
2130		.mask = 0xfff0,
2131		.name = "Intel ICH5/AD1985",
2132		.type = AC97_TUNE_AD_SHARING
2133	},
2134	{
2135		.subvendor = 0x8086,
2136		.subdevice = 0xe000,
2137		.mask = 0xfff0,
2138		.name = "Intel ICH5/AD1985",
2139		.type = AC97_TUNE_AD_SHARING
2140	},
2141#if 0 /* FIXME: this seems wrong on most boards */
2142	{
2143		.subvendor = 0x8086,
2144		.subdevice = 0xa000,
2145		.mask = 0xfff0,
2146		.name = "Intel ICH5/AD1985",
2147		.type = AC97_TUNE_HP_ONLY
2148	},
2149#endif
2150	{ } /* terminator */
2151};
2152
2153static int __devinit snd_intel8x0_mixer(struct intel8x0 *chip, int ac97_clock,
2154					const char *quirk_override)
2155{
2156	struct snd_ac97_bus *pbus;
2157	struct snd_ac97_template ac97;
2158	int err;
2159	unsigned int i, codecs;
2160	unsigned int glob_sta = 0;
2161	struct snd_ac97_bus_ops *ops;
2162	static struct snd_ac97_bus_ops standard_bus_ops = {
2163		.write = snd_intel8x0_codec_write,
2164		.read = snd_intel8x0_codec_read,
2165	};
2166	static struct snd_ac97_bus_ops ali_bus_ops = {
2167		.write = snd_intel8x0_ali_codec_write,
2168		.read = snd_intel8x0_ali_codec_read,
2169	};
2170
2171	chip->spdif_idx = -1; /* use PCMOUT (or disabled) */
2172	if (!spdif_aclink) {
2173		switch (chip->device_type) {
2174		case DEVICE_NFORCE:
2175			chip->spdif_idx = NVD_SPBAR;
2176			break;
2177		case DEVICE_ALI:
2178			chip->spdif_idx = ALID_AC97SPDIFOUT;
2179			break;
2180		case DEVICE_INTEL_ICH4:
2181			chip->spdif_idx = ICHD_SPBAR;
2182			break;
2183		};
2184	}
2185
2186	chip->in_ac97_init = 1;
2187
2188	memset(&ac97, 0, sizeof(ac97));
2189	ac97.private_data = chip;
2190	ac97.private_free = snd_intel8x0_mixer_free_ac97;
2191	ac97.scaps = AC97_SCAP_SKIP_MODEM | AC97_SCAP_POWER_SAVE;
2192	if (chip->xbox)
2193		ac97.scaps |= AC97_SCAP_DETECT_BY_VENDOR;
2194	if (chip->device_type != DEVICE_ALI) {
2195		glob_sta = igetdword(chip, ICHREG(GLOB_STA));
2196		ops = &standard_bus_ops;
2197		chip->in_sdin_init = 1;
2198		codecs = 0;
2199		for (i = 0; i < chip->max_codecs; i++) {
2200			if (! (glob_sta & chip->codec_bit[i]))
2201				continue;
2202			if (chip->device_type == DEVICE_INTEL_ICH4) {
2203				snd_intel8x0_codec_read_test(chip, codecs);
2204				chip->ac97_sdin[codecs] =
2205					igetbyte(chip, ICHREG(SDM)) & ICH_LDI_MASK;
2206				if (snd_BUG_ON(chip->ac97_sdin[codecs] >= 3))
2207					chip->ac97_sdin[codecs] = 0;
2208			} else
2209				chip->ac97_sdin[codecs] = i;
2210			codecs++;
2211		}
2212		chip->in_sdin_init = 0;
2213		if (! codecs)
2214			codecs = 1;
2215	} else {
2216		ops = &ali_bus_ops;
2217		codecs = 1;
2218		/* detect the secondary codec */
2219		for (i = 0; i < 100; i++) {
2220			unsigned int reg = igetdword(chip, ICHREG(ALI_RTSR));
2221			if (reg & 0x40) {
2222				codecs = 2;
2223				break;
2224			}
2225			iputdword(chip, ICHREG(ALI_RTSR), reg | 0x40);
2226			udelay(1);
2227		}
2228	}
2229	if ((err = snd_ac97_bus(chip->card, 0, ops, chip, &pbus)) < 0)
2230		goto __err;
2231	pbus->private_free = snd_intel8x0_mixer_free_ac97_bus;
2232	if (ac97_clock >= 8000 && ac97_clock <= 48000)
2233		pbus->clock = ac97_clock;
2234	/* FIXME: my test board doesn't work well with VRA... */
2235	if (chip->device_type == DEVICE_ALI)
2236		pbus->no_vra = 1;
2237	else
2238		pbus->dra = 1;
2239	chip->ac97_bus = pbus;
2240	chip->ncodecs = codecs;
2241
2242	ac97.pci = chip->pci;
2243	for (i = 0; i < codecs; i++) {
2244		ac97.num = i;
2245		if ((err = snd_ac97_mixer(pbus, &ac97, &chip->ac97[i])) < 0) {
2246			if (err != -EACCES)
2247				snd_printk(KERN_ERR "Unable to initialize codec #%d\n", i);
2248			if (i == 0)
2249				goto __err;
2250		}
2251	}
2252	/* tune up the primary codec */
2253	snd_ac97_tune_hardware(chip->ac97[0], ac97_quirks, quirk_override);
2254	/* enable separate SDINs for ICH4 */
2255	if (chip->device_type == DEVICE_INTEL_ICH4)
2256		pbus->isdin = 1;
2257	/* find the available PCM streams */
2258	i = ARRAY_SIZE(ac97_pcm_defs);
2259	if (chip->device_type != DEVICE_INTEL_ICH4)
2260		i -= 2;		/* do not allocate PCM2IN and MIC2 */
2261	if (chip->spdif_idx < 0)
2262		i--;		/* do not allocate S/PDIF */
2263	err = snd_ac97_pcm_assign(pbus, i, ac97_pcm_defs);
2264	if (err < 0)
2265		goto __err;
2266	chip->ichd[ICHD_PCMOUT].pcm = &pbus->pcms[0];
2267	chip->ichd[ICHD_PCMIN].pcm = &pbus->pcms[1];
2268	chip->ichd[ICHD_MIC].pcm = &pbus->pcms[2];
2269	if (chip->spdif_idx >= 0)
2270		chip->ichd[chip->spdif_idx].pcm = &pbus->pcms[3];
2271	if (chip->device_type == DEVICE_INTEL_ICH4) {
2272		chip->ichd[ICHD_PCM2IN].pcm = &pbus->pcms[4];
2273		chip->ichd[ICHD_MIC2].pcm = &pbus->pcms[5];
2274	}
2275	/* enable separate SDINs for ICH4 */
2276	if (chip->device_type == DEVICE_INTEL_ICH4) {
2277		struct ac97_pcm *pcm = chip->ichd[ICHD_PCM2IN].pcm;
2278		u8 tmp = igetbyte(chip, ICHREG(SDM));
2279		tmp &= ~(ICH_DI2L_MASK|ICH_DI1L_MASK);
2280		if (pcm) {
2281			tmp |= ICH_SE;	/* steer enable for multiple SDINs */
2282			tmp |= chip->ac97_sdin[0] << ICH_DI1L_SHIFT;
2283			for (i = 1; i < 4; i++) {
2284				if (pcm->r[0].codec[i]) {
2285					tmp |= chip->ac97_sdin[pcm->r[0].codec[1]->num] << ICH_DI2L_SHIFT;
2286					break;
2287				}
2288			}
2289		} else {
2290			tmp &= ~ICH_SE; /* steer disable */
2291		}
2292		iputbyte(chip, ICHREG(SDM), tmp);
2293	}
2294	if (pbus->pcms[0].r[0].slots & (1 << AC97_SLOT_PCM_SLEFT)) {
2295		chip->multi4 = 1;
2296		if (pbus->pcms[0].r[0].slots & (1 << AC97_SLOT_LFE)) {
2297			chip->multi6 = 1;
2298			if (chip->ac97[0]->flags & AC97_HAS_8CH)
2299				chip->multi8 = 1;
2300		}
2301	}
2302	if (pbus->pcms[0].r[1].rslots[0]) {
2303		chip->dra = 1;
2304	}
2305	if (chip->device_type == DEVICE_INTEL_ICH4) {
2306		if ((igetdword(chip, ICHREG(GLOB_STA)) & ICH_SAMPLE_CAP) == ICH_SAMPLE_16_20)
2307			chip->smp20bit = 1;
2308	}
2309	if (chip->device_type == DEVICE_NFORCE && !spdif_aclink) {
2310		/* 48kHz only */
2311		chip->ichd[chip->spdif_idx].pcm->rates = SNDRV_PCM_RATE_48000;
2312	}
2313	if (chip->device_type == DEVICE_INTEL_ICH4 && !spdif_aclink) {
2314		/* use slot 10/11 for SPDIF */
2315		u32 val;
2316		val = igetdword(chip, ICHREG(GLOB_CNT)) & ~ICH_PCM_SPDIF_MASK;
2317		val |= ICH_PCM_SPDIF_1011;
2318		iputdword(chip, ICHREG(GLOB_CNT), val);
2319		snd_ac97_update_bits(chip->ac97[0], AC97_EXTENDED_STATUS, 0x03 << 4, 0x03 << 4);
2320	}
2321	chip->in_ac97_init = 0;
2322	return 0;
2323
2324 __err:
2325	/* clear the cold-reset bit for the next chance */
2326	if (chip->device_type != DEVICE_ALI)
2327		iputdword(chip, ICHREG(GLOB_CNT),
2328			  igetdword(chip, ICHREG(GLOB_CNT)) & ~ICH_AC97COLD);
2329	return err;
2330}
2331
2332
2333/*
2334 *
2335 */
2336
2337static void do_ali_reset(struct intel8x0 *chip)
2338{
2339	iputdword(chip, ICHREG(ALI_SCR), ICH_ALI_SC_RESET);
2340	iputdword(chip, ICHREG(ALI_FIFOCR1), 0x83838383);
2341	iputdword(chip, ICHREG(ALI_FIFOCR2), 0x83838383);
2342	iputdword(chip, ICHREG(ALI_FIFOCR3), 0x83838383);
2343	iputdword(chip, ICHREG(ALI_INTERFACECR),
2344		  ICH_ALI_IF_PI|ICH_ALI_IF_PO);
2345	iputdword(chip, ICHREG(ALI_INTERRUPTCR), 0x00000000);
2346	iputdword(chip, ICHREG(ALI_INTERRUPTSR), 0x00000000);
2347}
2348
2349#ifdef CONFIG_SND_AC97_POWER_SAVE
2350static struct snd_pci_quirk ich_chip_reset_mode[] = {
2351	SND_PCI_QUIRK(0x1014, 0x051f, "Thinkpad R32", 1),
2352	{ } /* end */
2353};
2354
2355static int snd_intel8x0_ich_chip_cold_reset(struct intel8x0 *chip)
2356{
2357	unsigned int cnt;
2358	/* ACLink on, 2 channels */
2359
2360	if (snd_pci_quirk_lookup(chip->pci, ich_chip_reset_mode))
2361		return -EIO;
2362
2363	cnt = igetdword(chip, ICHREG(GLOB_CNT));
2364	cnt &= ~(ICH_ACLINK | ICH_PCM_246_MASK);
2365
2366	/* do cold reset - the full ac97 powerdown may leave the controller
2367	 * in a warm state but actually it cannot communicate with the codec.
2368	 */
2369	iputdword(chip, ICHREG(GLOB_CNT), cnt & ~ICH_AC97COLD);
2370	cnt = igetdword(chip, ICHREG(GLOB_CNT));
2371	udelay(10);
2372	iputdword(chip, ICHREG(GLOB_CNT), cnt | ICH_AC97COLD);
2373	msleep(1);
2374	return 0;
2375}
2376#define snd_intel8x0_ich_chip_can_cold_reset(chip) \
2377	(!snd_pci_quirk_lookup(chip->pci, ich_chip_reset_mode))
2378#else
2379#define snd_intel8x0_ich_chip_cold_reset(chip)	0
2380#define snd_intel8x0_ich_chip_can_cold_reset(chip) (0)
2381#endif
2382
2383static int snd_intel8x0_ich_chip_reset(struct intel8x0 *chip)
2384{
2385	unsigned long end_time;
2386	unsigned int cnt;
2387	/* ACLink on, 2 channels */
2388	cnt = igetdword(chip, ICHREG(GLOB_CNT));
2389	cnt &= ~(ICH_ACLINK | ICH_PCM_246_MASK);
2390	/* finish cold or do warm reset */
2391	cnt |= (cnt & ICH_AC97COLD) == 0 ? ICH_AC97COLD : ICH_AC97WARM;
2392	iputdword(chip, ICHREG(GLOB_CNT), cnt);
2393	end_time = (jiffies + (HZ / 4)) + 1;
2394	do {
2395		if ((igetdword(chip, ICHREG(GLOB_CNT)) & ICH_AC97WARM) == 0)
2396			return 0;
2397		schedule_timeout_uninterruptible(1);
2398	} while (time_after_eq(end_time, jiffies));
2399	snd_printk(KERN_ERR "AC'97 warm reset still in progress? [0x%x]\n",
2400		   igetdword(chip, ICHREG(GLOB_CNT)));
2401	return -EIO;
2402}
2403
2404static int snd_intel8x0_ich_chip_init(struct intel8x0 *chip, int probing)
2405{
2406	unsigned long end_time;
2407	unsigned int status, nstatus;
2408	unsigned int cnt;
2409	int err;
2410
2411	/* put logic to right state */
2412	/* first clear status bits */
2413	status = ICH_RCS | ICH_MCINT | ICH_POINT | ICH_PIINT;
2414	if (chip->device_type == DEVICE_NFORCE)
2415		status |= ICH_NVSPINT;
2416	cnt = igetdword(chip, ICHREG(GLOB_STA));
2417	iputdword(chip, ICHREG(GLOB_STA), cnt & status);
2418
2419	if (snd_intel8x0_ich_chip_can_cold_reset(chip))
2420		err = snd_intel8x0_ich_chip_cold_reset(chip);
2421	else
2422		err = snd_intel8x0_ich_chip_reset(chip);
2423	if (err < 0)
2424		return err;
2425
2426	if (probing) {
2427		/* wait for any codec ready status.
2428		 * Once it becomes ready it should remain ready
2429		 * as long as we do not disable the ac97 link.
2430		 */
2431		end_time = jiffies + HZ;
2432		do {
2433			status = igetdword(chip, ICHREG(GLOB_STA)) &
2434				chip->codec_isr_bits;
2435			if (status)
2436				break;
2437			schedule_timeout_uninterruptible(1);
2438		} while (time_after_eq(end_time, jiffies));
2439		if (! status) {
2440			/* no codec is found */
2441			snd_printk(KERN_ERR "codec_ready: codec is not ready [0x%x]\n",
2442				   igetdword(chip, ICHREG(GLOB_STA)));
2443			return -EIO;
2444		}
2445
2446		/* wait for other codecs ready status. */
2447		end_time = jiffies + HZ / 4;
2448		while (status != chip->codec_isr_bits &&
2449		       time_after_eq(end_time, jiffies)) {
2450			schedule_timeout_uninterruptible(1);
2451			status |= igetdword(chip, ICHREG(GLOB_STA)) &
2452				chip->codec_isr_bits;
2453		}
2454
2455	} else {
2456		/* resume phase */
2457		int i;
2458		status = 0;
2459		for (i = 0; i < chip->ncodecs; i++)
2460			if (chip->ac97[i])
2461				status |= chip->codec_bit[chip->ac97_sdin[i]];
2462		/* wait until all the probed codecs are ready */
2463		end_time = jiffies + HZ;
2464		do {
2465			nstatus = igetdword(chip, ICHREG(GLOB_STA)) &
2466				chip->codec_isr_bits;
2467			if (status == nstatus)
2468				break;
2469			schedule_timeout_uninterruptible(1);
2470		} while (time_after_eq(end_time, jiffies));
2471	}
2472
2473	if (chip->device_type == DEVICE_SIS) {
2474		/* unmute the output on SIS7012 */
2475		iputword(chip, 0x4c, igetword(chip, 0x4c) | 1);
2476	}
2477	if (chip->device_type == DEVICE_NFORCE && !spdif_aclink) {
2478		/* enable SPDIF interrupt */
2479		unsigned int val;
2480		pci_read_config_dword(chip->pci, 0x4c, &val);
2481		val |= 0x1000000;
2482		pci_write_config_dword(chip->pci, 0x4c, val);
2483	}
2484      	return 0;
2485}
2486
2487static int snd_intel8x0_ali_chip_init(struct intel8x0 *chip, int probing)
2488{
2489	u32 reg;
2490	int i = 0;
2491
2492	reg = igetdword(chip, ICHREG(ALI_SCR));
2493	if ((reg & 2) == 0)	/* Cold required */
2494		reg |= 2;
2495	else
2496		reg |= 1;	/* Warm */
2497	reg &= ~0x80000000;	/* ACLink on */
2498	iputdword(chip, ICHREG(ALI_SCR), reg);
2499
2500	for (i = 0; i < HZ / 2; i++) {
2501		if (! (igetdword(chip, ICHREG(ALI_INTERRUPTSR)) & ALI_INT_GPIO))
2502			goto __ok;
2503		schedule_timeout_uninterruptible(1);
2504	}
2505	snd_printk(KERN_ERR "AC'97 reset failed.\n");
2506	if (probing)
2507		return -EIO;
2508
2509 __ok:
2510	for (i = 0; i < HZ / 2; i++) {
2511		reg = igetdword(chip, ICHREG(ALI_RTSR));
2512		if (reg & 0x80) /* primary codec */
2513			break;
2514		iputdword(chip, ICHREG(ALI_RTSR), reg | 0x80);
2515		schedule_timeout_uninterruptible(1);
2516	}
2517
2518	do_ali_reset(chip);
2519	return 0;
2520}
2521
2522static int snd_intel8x0_chip_init(struct intel8x0 *chip, int probing)
2523{
2524	unsigned int i, timeout;
2525	int err;
2526
2527	if (chip->device_type != DEVICE_ALI) {
2528		if ((err = snd_intel8x0_ich_chip_init(chip, probing)) < 0)
2529			return err;
2530		iagetword(chip, 0);	/* clear semaphore flag */
2531	} else {
2532		if ((err = snd_intel8x0_ali_chip_init(chip, probing)) < 0)
2533			return err;
2534	}
2535
2536	/* disable interrupts */
2537	for (i = 0; i < chip->bdbars_count; i++)
2538		iputbyte(chip, ICH_REG_OFF_CR + chip->ichd[i].reg_offset, 0x00);
2539	/* reset channels */
2540	for (i = 0; i < chip->bdbars_count; i++)
2541		iputbyte(chip, ICH_REG_OFF_CR + chip->ichd[i].reg_offset, ICH_RESETREGS);
2542	for (i = 0; i < chip->bdbars_count; i++) {
2543	        timeout = 100000;
2544	        while (--timeout != 0) {
2545        		if ((igetbyte(chip, ICH_REG_OFF_CR + chip->ichd[i].reg_offset) & ICH_RESETREGS) == 0)
2546        		        break;
2547                }
2548                if (timeout == 0)
2549                        printk(KERN_ERR "intel8x0: reset of registers failed?\n");
2550        }
2551	/* initialize Buffer Descriptor Lists */
2552	for (i = 0; i < chip->bdbars_count; i++)
2553		iputdword(chip, ICH_REG_OFF_BDBAR + chip->ichd[i].reg_offset,
2554			  chip->ichd[i].bdbar_addr);
2555	return 0;
2556}
2557
2558static int snd_intel8x0_free(struct intel8x0 *chip)
2559{
2560	unsigned int i;
2561
2562	if (chip->irq < 0)
2563		goto __hw_end;
2564	/* disable interrupts */
2565	for (i = 0; i < chip->bdbars_count; i++)
2566		iputbyte(chip, ICH_REG_OFF_CR + chip->ichd[i].reg_offset, 0x00);
2567	/* reset channels */
2568	for (i = 0; i < chip->bdbars_count; i++)
2569		iputbyte(chip, ICH_REG_OFF_CR + chip->ichd[i].reg_offset, ICH_RESETREGS);
2570	if (chip->device_type == DEVICE_NFORCE && !spdif_aclink) {
2571		/* stop the spdif interrupt */
2572		unsigned int val;
2573		pci_read_config_dword(chip->pci, 0x4c, &val);
2574		val &= ~0x1000000;
2575		pci_write_config_dword(chip->pci, 0x4c, val);
2576	}
2577	/* --- */
2578
2579      __hw_end:
2580	if (chip->irq >= 0)
2581		free_irq(chip->irq, chip);
2582	if (chip->bdbars.area) {
2583		if (chip->fix_nocache)
2584			fill_nocache(chip->bdbars.area, chip->bdbars.bytes, 0);
2585		snd_dma_free_pages(&chip->bdbars);
2586	}
2587	if (chip->addr)
2588		pci_iounmap(chip->pci, chip->addr);
2589	if (chip->bmaddr)
2590		pci_iounmap(chip->pci, chip->bmaddr);
2591	pci_release_regions(chip->pci);
2592	pci_disable_device(chip->pci);
2593	kfree(chip);
2594	return 0;
2595}
2596
2597#ifdef CONFIG_PM
2598/*
2599 * power management
2600 */
2601static int intel8x0_suspend(struct pci_dev *pci, pm_message_t state)
2602{
2603	struct snd_card *card = pci_get_drvdata(pci);
2604	struct intel8x0 *chip = card->private_data;
2605	int i;
2606
2607	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
2608	for (i = 0; i < chip->pcm_devs; i++)
2609		snd_pcm_suspend_all(chip->pcm[i]);
2610	/* clear nocache */
2611	if (chip->fix_nocache) {
2612		for (i = 0; i < chip->bdbars_count; i++) {
2613			struct ichdev *ichdev = &chip->ichd[i];
2614			if (ichdev->substream && ichdev->page_attr_changed) {
2615				struct snd_pcm_runtime *runtime = ichdev->substream->runtime;
2616				if (runtime->dma_area)
2617					fill_nocache(runtime->dma_area, runtime->dma_bytes, 0);
2618			}
2619		}
2620	}
2621	for (i = 0; i < chip->ncodecs; i++)
2622		snd_ac97_suspend(chip->ac97[i]);
2623	if (chip->device_type == DEVICE_INTEL_ICH4)
2624		chip->sdm_saved = igetbyte(chip, ICHREG(SDM));
2625
2626	if (chip->irq >= 0) {
2627		free_irq(chip->irq, chip);
2628		chip->irq = -1;
2629	}
2630	pci_disable_device(pci);
2631	pci_save_state(pci);
2632	/* The call below may disable built-in speaker on some laptops
2633	 * after S2RAM.  So, don't touch it.
2634	 */
2635	/* pci_set_power_state(pci, pci_choose_state(pci, state)); */
2636	return 0;
2637}
2638
2639static int intel8x0_resume(struct pci_dev *pci)
2640{
2641	struct snd_card *card = pci_get_drvdata(pci);
2642	struct intel8x0 *chip = card->private_data;
2643	int i;
2644
2645	pci_set_power_state(pci, PCI_D0);
2646	pci_restore_state(pci);
2647	if (pci_enable_device(pci) < 0) {
2648		printk(KERN_ERR "intel8x0: pci_enable_device failed, "
2649		       "disabling device\n");
2650		snd_card_disconnect(card);
2651		return -EIO;
2652	}
2653	pci_set_master(pci);
2654	snd_intel8x0_chip_init(chip, 0);
2655	if (request_irq(pci->irq, snd_intel8x0_interrupt,
2656			IRQF_SHARED, card->shortname, chip)) {
2657		printk(KERN_ERR "intel8x0: unable to grab IRQ %d, "
2658		       "disabling device\n", pci->irq);
2659		snd_card_disconnect(card);
2660		return -EIO;
2661	}
2662	chip->irq = pci->irq;
2663	synchronize_irq(chip->irq);
2664
2665	/* re-initialize mixer stuff */
2666	if (chip->device_type == DEVICE_INTEL_ICH4 && !spdif_aclink) {
2667		/* enable separate SDINs for ICH4 */
2668		iputbyte(chip, ICHREG(SDM), chip->sdm_saved);
2669		/* use slot 10/11 for SPDIF */
2670		iputdword(chip, ICHREG(GLOB_CNT),
2671			  (igetdword(chip, ICHREG(GLOB_CNT)) & ~ICH_PCM_SPDIF_MASK) |
2672			  ICH_PCM_SPDIF_1011);
2673	}
2674
2675	/* refill nocache */
2676	if (chip->fix_nocache)
2677		fill_nocache(chip->bdbars.area, chip->bdbars.bytes, 1);
2678
2679	for (i = 0; i < chip->ncodecs; i++)
2680		snd_ac97_resume(chip->ac97[i]);
2681
2682	/* refill nocache */
2683	if (chip->fix_nocache) {
2684		for (i = 0; i < chip->bdbars_count; i++) {
2685			struct ichdev *ichdev = &chip->ichd[i];
2686			if (ichdev->substream && ichdev->page_attr_changed) {
2687				struct snd_pcm_runtime *runtime = ichdev->substream->runtime;
2688				if (runtime->dma_area)
2689					fill_nocache(runtime->dma_area, runtime->dma_bytes, 1);
2690			}
2691		}
2692	}
2693
2694	/* resume status */
2695	for (i = 0; i < chip->bdbars_count; i++) {
2696		struct ichdev *ichdev = &chip->ichd[i];
2697		unsigned long port = ichdev->reg_offset;
2698		if (! ichdev->substream || ! ichdev->suspended)
2699			continue;
2700		if (ichdev->ichd == ICHD_PCMOUT)
2701			snd_intel8x0_setup_pcm_out(chip, ichdev->substream->runtime);
2702		iputdword(chip, port + ICH_REG_OFF_BDBAR, ichdev->bdbar_addr);
2703		iputbyte(chip, port + ICH_REG_OFF_LVI, ichdev->lvi);
2704		iputbyte(chip, port + ICH_REG_OFF_CIV, ichdev->civ);
2705		iputbyte(chip, port + ichdev->roff_sr, ICH_FIFOE | ICH_BCIS | ICH_LVBCI);
2706	}
2707
2708	snd_power_change_state(card, SNDRV_CTL_POWER_D0);
2709	return 0;
2710}
2711#endif /* CONFIG_PM */
2712
2713#define INTEL8X0_TESTBUF_SIZE	32768	/* enough large for one shot */
2714
2715static void __devinit intel8x0_measure_ac97_clock(struct intel8x0 *chip)
2716{
2717	struct snd_pcm_substream *subs;
2718	struct ichdev *ichdev;
2719	unsigned long port;
2720	unsigned long pos, pos1, t;
2721	int civ, timeout = 1000, attempt = 1;
2722	struct timespec start_time, stop_time;
2723
2724	if (chip->ac97_bus->clock != 48000)
2725		return; /* specified in module option */
2726
2727      __again:
2728	subs = chip->pcm[0]->streams[0].substream;
2729	if (! subs || subs->dma_buffer.bytes < INTEL8X0_TESTBUF_SIZE) {
2730		snd_printk(KERN_WARNING "no playback buffer allocated - aborting measure ac97 clock\n");
2731		return;
2732	}
2733	ichdev = &chip->ichd[ICHD_PCMOUT];
2734	ichdev->physbuf = subs->dma_buffer.addr;
2735	ichdev->size = ichdev->fragsize = INTEL8X0_TESTBUF_SIZE;
2736	ichdev->substream = NULL; /* don't process interrupts */
2737
2738	/* set rate */
2739	if (snd_ac97_set_rate(chip->ac97[0], AC97_PCM_FRONT_DAC_RATE, 48000) < 0) {
2740		snd_printk(KERN_ERR "cannot set ac97 rate: clock = %d\n", chip->ac97_bus->clock);
2741		return;
2742	}
2743	snd_intel8x0_setup_periods(chip, ichdev);
2744	port = ichdev->reg_offset;
2745	spin_lock_irq(&chip->reg_lock);
2746	chip->in_measurement = 1;
2747	/* trigger */
2748	if (chip->device_type != DEVICE_ALI)
2749		iputbyte(chip, port + ICH_REG_OFF_CR, ICH_IOCE | ICH_STARTBM);
2750	else {
2751		iputbyte(chip, port + ICH_REG_OFF_CR, ICH_IOCE);
2752		iputdword(chip, ICHREG(ALI_DMACR), 1 << ichdev->ali_slot);
2753	}
2754	do_posix_clock_monotonic_gettime(&start_time);
2755	spin_unlock_irq(&chip->reg_lock);
2756	msleep(50);
2757	spin_lock_irq(&chip->reg_lock);
2758	/* check the position */
2759	do {
2760		civ = igetbyte(chip, ichdev->reg_offset + ICH_REG_OFF_CIV);
2761		pos1 = igetword(chip, ichdev->reg_offset + ichdev->roff_picb);
2762		if (pos1 == 0) {
2763			udelay(10);
2764			continue;
2765		}
2766		if (civ == igetbyte(chip, ichdev->reg_offset + ICH_REG_OFF_CIV) &&
2767		    pos1 == igetword(chip, ichdev->reg_offset + ichdev->roff_picb))
2768			break;
2769	} while (timeout--);
2770	if (pos1 == 0) {	/* oops, this value is not reliable */
2771		pos = 0;
2772	} else {
2773		pos = ichdev->fragsize1;
2774		pos -= pos1 << ichdev->pos_shift;
2775		pos += ichdev->position;
2776	}
2777	chip->in_measurement = 0;
2778	do_posix_clock_monotonic_gettime(&stop_time);
2779	/* stop */
2780	if (chip->device_type == DEVICE_ALI) {
2781		iputdword(chip, ICHREG(ALI_DMACR), 1 << (ichdev->ali_slot + 16));
2782		iputbyte(chip, port + ICH_REG_OFF_CR, 0);
2783		while (igetbyte(chip, port + ICH_REG_OFF_CR))
2784			;
2785	} else {
2786		iputbyte(chip, port + ICH_REG_OFF_CR, 0);
2787		while (!(igetbyte(chip, port + ichdev->roff_sr) & ICH_DCH))
2788			;
2789	}
2790	iputbyte(chip, port + ICH_REG_OFF_CR, ICH_RESETREGS);
2791	spin_unlock_irq(&chip->reg_lock);
2792
2793	if (pos == 0) {
2794		snd_printk(KERN_ERR "intel8x0: measure - unreliable DMA position..\n");
2795	      __retry:
2796		if (attempt < 3) {
2797			msleep(300);
2798			attempt++;
2799			goto __again;
2800		}
2801		goto __end;
2802	}
2803
2804	pos /= 4;
2805	t = stop_time.tv_sec - start_time.tv_sec;
2806	t *= 1000000;
2807	t += (stop_time.tv_nsec - start_time.tv_nsec) / 1000;
2808	printk(KERN_INFO "%s: measured %lu usecs (%lu samples)\n", __func__, t, pos);
2809	if (t == 0) {
2810		snd_printk(KERN_ERR "intel8x0: ?? calculation error..\n");
2811		goto __retry;
2812	}
2813	pos *= 1000;
2814	pos = (pos / t) * 1000 + ((pos % t) * 1000) / t;
2815	if (pos < 40000 || pos >= 60000) {
2816		/* abnormal value. hw problem? */
2817		printk(KERN_INFO "intel8x0: measured clock %ld rejected\n", pos);
2818		goto __retry;
2819	} else if (pos > 40500 && pos < 41500)
2820		/* first exception - 41000Hz reference clock */
2821		chip->ac97_bus->clock = 41000;
2822	else if (pos > 43600 && pos < 44600)
2823		/* second exception - 44100HZ reference clock */
2824		chip->ac97_bus->clock = 44100;
2825	else if (pos < 47500 || pos > 48500)
2826		/* not 48000Hz, tuning the clock.. */
2827		chip->ac97_bus->clock = (chip->ac97_bus->clock * 48000) / pos;
2828      __end:
2829	printk(KERN_INFO "intel8x0: clocking to %d\n", chip->ac97_bus->clock);
2830	snd_ac97_update_power(chip->ac97[0], AC97_PCM_FRONT_DAC_RATE, 0);
2831}
2832
2833static struct snd_pci_quirk intel8x0_clock_list[] __devinitdata = {
2834	SND_PCI_QUIRK(0x0e11, 0x008a, "AD1885", 41000),
2835	SND_PCI_QUIRK(0x1028, 0x00be, "AD1885", 44100),
2836	SND_PCI_QUIRK(0x1028, 0x0177, "AD1980", 48000),
2837	SND_PCI_QUIRK(0x1028, 0x01ad, "AD1981B", 48000),
2838	SND_PCI_QUIRK(0x1043, 0x80f3, "AD1985", 48000),
2839	{ }	/* terminator */
2840};
2841
2842static int __devinit intel8x0_in_clock_list(struct intel8x0 *chip)
2843{
2844	struct pci_dev *pci = chip->pci;
2845	const struct snd_pci_quirk *wl;
2846
2847	wl = snd_pci_quirk_lookup(pci, intel8x0_clock_list);
2848	if (!wl)
2849		return 0;
2850	printk(KERN_INFO "intel8x0: white list rate for %04x:%04x is %i\n",
2851	       pci->subsystem_vendor, pci->subsystem_device, wl->value);
2852	chip->ac97_bus->clock = wl->value;
2853	return 1;
2854}
2855
2856#ifdef CONFIG_PROC_FS
2857static void snd_intel8x0_proc_read(struct snd_info_entry * entry,
2858				   struct snd_info_buffer *buffer)
2859{
2860	struct intel8x0 *chip = entry->private_data;
2861	unsigned int tmp;
2862
2863	snd_iprintf(buffer, "Intel8x0\n\n");
2864	if (chip->device_type == DEVICE_ALI)
2865		return;
2866	tmp = igetdword(chip, ICHREG(GLOB_STA));
2867	snd_iprintf(buffer, "Global control        : 0x%08x\n", igetdword(chip, ICHREG(GLOB_CNT)));
2868	snd_iprintf(buffer, "Global status         : 0x%08x\n", tmp);
2869	if (chip->device_type == DEVICE_INTEL_ICH4)
2870		snd_iprintf(buffer, "SDM                   : 0x%08x\n", igetdword(chip, ICHREG(SDM)));
2871	snd_iprintf(buffer, "AC'97 codecs ready    :");
2872	if (tmp & chip->codec_isr_bits) {
2873		int i;
2874		static const char *codecs[3] = {
2875			"primary", "secondary", "tertiary"
2876		};
2877		for (i = 0; i < chip->max_codecs; i++)
2878			if (tmp & chip->codec_bit[i])
2879				snd_iprintf(buffer, " %s", codecs[i]);
2880	} else
2881		snd_iprintf(buffer, " none");
2882	snd_iprintf(buffer, "\n");
2883	if (chip->device_type == DEVICE_INTEL_ICH4 ||
2884	    chip->device_type == DEVICE_SIS)
2885		snd_iprintf(buffer, "AC'97 codecs SDIN     : %i %i %i\n",
2886			chip->ac97_sdin[0],
2887			chip->ac97_sdin[1],
2888			chip->ac97_sdin[2]);
2889}
2890
2891static void __devinit snd_intel8x0_proc_init(struct intel8x0 * chip)
2892{
2893	struct snd_info_entry *entry;
2894
2895	if (! snd_card_proc_new(chip->card, "intel8x0", &entry))
2896		snd_info_set_text_ops(entry, chip, snd_intel8x0_proc_read);
2897}
2898#else
2899#define snd_intel8x0_proc_init(x)
2900#endif
2901
2902static int snd_intel8x0_dev_free(struct snd_device *device)
2903{
2904	struct intel8x0 *chip = device->device_data;
2905	return snd_intel8x0_free(chip);
2906}
2907
2908struct ich_reg_info {
2909	unsigned int int_sta_mask;
2910	unsigned int offset;
2911};
2912
2913static unsigned int ich_codec_bits[3] = {
2914	ICH_PCR, ICH_SCR, ICH_TCR
2915};
2916static unsigned int sis_codec_bits[3] = {
2917	ICH_PCR, ICH_SCR, ICH_SIS_TCR
2918};
2919
2920static int __devinit snd_intel8x0_create(struct snd_card *card,
2921					 struct pci_dev *pci,
2922					 unsigned long device_type,
2923					 struct intel8x0 ** r_intel8x0)
2924{
2925	struct intel8x0 *chip;
2926	int err;
2927	unsigned int i;
2928	unsigned int int_sta_masks;
2929	struct ichdev *ichdev;
2930	static struct snd_device_ops ops = {
2931		.dev_free =	snd_intel8x0_dev_free,
2932	};
2933
2934	static unsigned int bdbars[] = {
2935		3, /* DEVICE_INTEL */
2936		6, /* DEVICE_INTEL_ICH4 */
2937		3, /* DEVICE_SIS */
2938		6, /* DEVICE_ALI */
2939		4, /* DEVICE_NFORCE */
2940	};
2941	static struct ich_reg_info intel_regs[6] = {
2942		{ ICH_PIINT, 0 },
2943		{ ICH_POINT, 0x10 },
2944		{ ICH_MCINT, 0x20 },
2945		{ ICH_M2INT, 0x40 },
2946		{ ICH_P2INT, 0x50 },
2947		{ ICH_SPINT, 0x60 },
2948	};
2949	static struct ich_reg_info nforce_regs[4] = {
2950		{ ICH_PIINT, 0 },
2951		{ ICH_POINT, 0x10 },
2952		{ ICH_MCINT, 0x20 },
2953		{ ICH_NVSPINT, 0x70 },
2954	};
2955	static struct ich_reg_info ali_regs[6] = {
2956		{ ALI_INT_PCMIN, 0x40 },
2957		{ ALI_INT_PCMOUT, 0x50 },
2958		{ ALI_INT_MICIN, 0x60 },
2959		{ ALI_INT_CODECSPDIFOUT, 0x70 },
2960		{ ALI_INT_SPDIFIN, 0xa0 },
2961		{ ALI_INT_SPDIFOUT, 0xb0 },
2962	};
2963	struct ich_reg_info *tbl;
2964
2965	*r_intel8x0 = NULL;
2966
2967	if ((err = pci_enable_device(pci)) < 0)
2968		return err;
2969
2970	chip = kzalloc(sizeof(*chip), GFP_KERNEL);
2971	if (chip == NULL) {
2972		pci_disable_device(pci);
2973		return -ENOMEM;
2974	}
2975	spin_lock_init(&chip->reg_lock);
2976	chip->device_type = device_type;
2977	chip->card = card;
2978	chip->pci = pci;
2979	chip->irq = -1;
2980
2981	/* module parameters */
2982	chip->buggy_irq = buggy_irq;
2983	chip->buggy_semaphore = buggy_semaphore;
2984	if (xbox)
2985		chip->xbox = 1;
2986
2987	if (pci->vendor == PCI_VENDOR_ID_INTEL &&
2988	    pci->device == PCI_DEVICE_ID_INTEL_440MX)
2989		chip->fix_nocache = 1; /* enable workaround */
2990
2991	if ((err = pci_request_regions(pci, card->shortname)) < 0) {
2992		kfree(chip);
2993		pci_disable_device(pci);
2994		return err;
2995	}
2996
2997	if (device_type == DEVICE_ALI) {
2998		/* ALI5455 has no ac97 region */
2999		chip->bmaddr = pci_iomap(pci, 0, 0);
3000		goto port_inited;
3001	}
3002
3003	if (pci_resource_flags(pci, 2) & IORESOURCE_MEM) /* ICH4 and Nforce */
3004		chip->addr = pci_iomap(pci, 2, 0);
3005	else
3006		chip->addr = pci_iomap(pci, 0, 0);
3007	if (!chip->addr) {
3008		snd_printk(KERN_ERR "AC'97 space ioremap problem\n");
3009		snd_intel8x0_free(chip);
3010		return -EIO;
3011	}
3012	if (pci_resource_flags(pci, 3) & IORESOURCE_MEM) /* ICH4 */
3013		chip->bmaddr = pci_iomap(pci, 3, 0);
3014	else
3015		chip->bmaddr = pci_iomap(pci, 1, 0);
3016	if (!chip->bmaddr) {
3017		snd_printk(KERN_ERR "Controller space ioremap problem\n");
3018		snd_intel8x0_free(chip);
3019		return -EIO;
3020	}
3021
3022 port_inited:
3023	chip->bdbars_count = bdbars[device_type];
3024
3025	/* initialize offsets */
3026	switch (device_type) {
3027	case DEVICE_NFORCE:
3028		tbl = nforce_regs;
3029		break;
3030	case DEVICE_ALI:
3031		tbl = ali_regs;
3032		break;
3033	default:
3034		tbl = intel_regs;
3035		break;
3036	}
3037	for (i = 0; i < chip->bdbars_count; i++) {
3038		ichdev = &chip->ichd[i];
3039		ichdev->ichd = i;
3040		ichdev->reg_offset = tbl[i].offset;
3041		ichdev->int_sta_mask = tbl[i].int_sta_mask;
3042		if (device_type == DEVICE_SIS) {
3043			/* SiS 7012 swaps the registers */
3044			ichdev->roff_sr = ICH_REG_OFF_PICB;
3045			ichdev->roff_picb = ICH_REG_OFF_SR;
3046		} else {
3047			ichdev->roff_sr = ICH_REG_OFF_SR;
3048			ichdev->roff_picb = ICH_REG_OFF_PICB;
3049		}
3050		if (device_type == DEVICE_ALI)
3051			ichdev->ali_slot = (ichdev->reg_offset - 0x40) / 0x10;
3052		/* SIS7012 handles the pcm data in bytes, others are in samples */
3053		ichdev->pos_shift = (device_type == DEVICE_SIS) ? 0 : 1;
3054	}
3055
3056	/* allocate buffer descriptor lists */
3057	/* the start of each lists must be aligned to 8 bytes */
3058	if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci),
3059				chip->bdbars_count * sizeof(u32) * ICH_MAX_FRAGS * 2,
3060				&chip->bdbars) < 0) {
3061		snd_intel8x0_free(chip);
3062		snd_printk(KERN_ERR "intel8x0: cannot allocate buffer descriptors\n");
3063		return -ENOMEM;
3064	}
3065	/* tables must be aligned to 8 bytes here, but the kernel pages
3066	   are much bigger, so we don't care (on i386) */
3067	/* workaround for 440MX */
3068	if (chip->fix_nocache)
3069		fill_nocache(chip->bdbars.area, chip->bdbars.bytes, 1);
3070	int_sta_masks = 0;
3071	for (i = 0; i < chip->bdbars_count; i++) {
3072		ichdev = &chip->ichd[i];
3073		ichdev->bdbar = ((u32 *)chip->bdbars.area) +
3074			(i * ICH_MAX_FRAGS * 2);
3075		ichdev->bdbar_addr = chip->bdbars.addr +
3076			(i * sizeof(u32) * ICH_MAX_FRAGS * 2);
3077		int_sta_masks |= ichdev->int_sta_mask;
3078	}
3079	chip->int_sta_reg = device_type == DEVICE_ALI ?
3080		ICH_REG_ALI_INTERRUPTSR : ICH_REG_GLOB_STA;
3081	chip->int_sta_mask = int_sta_masks;
3082
3083	pci_set_master(pci);
3084
3085	switch(chip->device_type) {
3086	case DEVICE_INTEL_ICH4:
3087		/* ICH4 can have three codecs */
3088		chip->max_codecs = 3;
3089		chip->codec_bit = ich_codec_bits;
3090		chip->codec_ready_bits = ICH_PRI | ICH_SRI | ICH_TRI;
3091		break;
3092	case DEVICE_SIS:
3093		/* recent SIS7012 can have three codecs */
3094		chip->max_codecs = 3;
3095		chip->codec_bit = sis_codec_bits;
3096		chip->codec_ready_bits = ICH_PRI | ICH_SRI | ICH_SIS_TRI;
3097		break;
3098	default:
3099		/* others up to two codecs */
3100		chip->max_codecs = 2;
3101		chip->codec_bit = ich_codec_bits;
3102		chip->codec_ready_bits = ICH_PRI | ICH_SRI;
3103		break;
3104	}
3105	for (i = 0; i < chip->max_codecs; i++)
3106		chip->codec_isr_bits |= chip->codec_bit[i];
3107
3108	if ((err = snd_intel8x0_chip_init(chip, 1)) < 0) {
3109		snd_intel8x0_free(chip);
3110		return err;
3111	}
3112
3113	/* request irq after initializaing int_sta_mask, etc */
3114	if (request_irq(pci->irq, snd_intel8x0_interrupt,
3115			IRQF_SHARED, card->shortname, chip)) {
3116		snd_printk(KERN_ERR "unable to grab IRQ %d\n", pci->irq);
3117		snd_intel8x0_free(chip);
3118		return -EBUSY;
3119	}
3120	chip->irq = pci->irq;
3121
3122	if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
3123		snd_intel8x0_free(chip);
3124		return err;
3125	}
3126
3127	snd_card_set_dev(card, &pci->dev);
3128
3129	*r_intel8x0 = chip;
3130	return 0;
3131}
3132
3133static struct shortname_table {
3134	unsigned int id;
3135	const char *s;
3136} shortnames[] __devinitdata = {
3137	{ PCI_DEVICE_ID_INTEL_82801AA_5, "Intel 82801AA-ICH" },
3138	{ PCI_DEVICE_ID_INTEL_82801AB_5, "Intel 82901AB-ICH0" },
3139	{ PCI_DEVICE_ID_INTEL_82801BA_4, "Intel 82801BA-ICH2" },
3140	{ PCI_DEVICE_ID_INTEL_440MX, "Intel 440MX" },
3141	{ PCI_DEVICE_ID_INTEL_82801CA_5, "Intel 82801CA-ICH3" },
3142	{ PCI_DEVICE_ID_INTEL_82801DB_5, "Intel 82801DB-ICH4" },
3143	{ PCI_DEVICE_ID_INTEL_82801EB_5, "Intel ICH5" },
3144	{ PCI_DEVICE_ID_INTEL_ESB_5, "Intel 6300ESB" },
3145	{ PCI_DEVICE_ID_INTEL_ICH6_18, "Intel ICH6" },
3146	{ PCI_DEVICE_ID_INTEL_ICH7_20, "Intel ICH7" },
3147	{ PCI_DEVICE_ID_INTEL_ESB2_14, "Intel ESB2" },
3148	{ PCI_DEVICE_ID_SI_7012, "SiS SI7012" },
3149	{ PCI_DEVICE_ID_NVIDIA_MCP1_AUDIO, "NVidia nForce" },
3150	{ PCI_DEVICE_ID_NVIDIA_MCP2_AUDIO, "NVidia nForce2" },
3151	{ PCI_DEVICE_ID_NVIDIA_MCP3_AUDIO, "NVidia nForce3" },
3152	{ PCI_DEVICE_ID_NVIDIA_CK8S_AUDIO, "NVidia CK8S" },
3153	{ PCI_DEVICE_ID_NVIDIA_CK804_AUDIO, "NVidia CK804" },
3154	{ PCI_DEVICE_ID_NVIDIA_CK8_AUDIO, "NVidia CK8" },
3155	{ 0x003a, "NVidia MCP04" },
3156	{ 0x746d, "AMD AMD8111" },
3157	{ 0x7445, "AMD AMD768" },
3158	{ 0x5455, "ALi M5455" },
3159	{ 0, NULL },
3160};
3161
3162static struct snd_pci_quirk spdif_aclink_defaults[] __devinitdata = {
3163	SND_PCI_QUIRK(0x147b, 0x1c1a, "ASUS KN8", 1),
3164	{ } /* end */
3165};
3166
3167/* look up white/black list for SPDIF over ac-link */
3168static int __devinit check_default_spdif_aclink(struct pci_dev *pci)
3169{
3170	const struct snd_pci_quirk *w;
3171
3172	w = snd_pci_quirk_lookup(pci, spdif_aclink_defaults);
3173	if (w) {
3174		if (w->value)
3175			snd_printdd(KERN_INFO "intel8x0: Using SPDIF over "
3176				    "AC-Link for %s\n", w->name);
3177		else
3178			snd_printdd(KERN_INFO "intel8x0: Using integrated "
3179				    "SPDIF DMA for %s\n", w->name);
3180		return w->value;
3181	}
3182	return 0;
3183}
3184
3185static int __devinit snd_intel8x0_probe(struct pci_dev *pci,
3186					const struct pci_device_id *pci_id)
3187{
3188	struct snd_card *card;
3189	struct intel8x0 *chip;
3190	int err;
3191	struct shortname_table *name;
3192
3193	err = snd_card_create(index, id, THIS_MODULE, 0, &card);
3194	if (err < 0)
3195		return err;
3196
3197	if (spdif_aclink < 0)
3198		spdif_aclink = check_default_spdif_aclink(pci);
3199
3200	strcpy(card->driver, "ICH");
3201	if (!spdif_aclink) {
3202		switch (pci_id->driver_data) {
3203		case DEVICE_NFORCE:
3204			strcpy(card->driver, "NFORCE");
3205			break;
3206		case DEVICE_INTEL_ICH4:
3207			strcpy(card->driver, "ICH4");
3208		}
3209	}
3210
3211	strcpy(card->shortname, "Intel ICH");
3212	for (name = shortnames; name->id; name++) {
3213		if (pci->device == name->id) {
3214			strcpy(card->shortname, name->s);
3215			break;
3216		}
3217	}
3218
3219	if (buggy_irq < 0) {
3220		/* some Nforce[2] and ICH boards have problems with IRQ handling.
3221		 * Needs to return IRQ_HANDLED for unknown irqs.
3222		 */
3223		if (pci_id->driver_data == DEVICE_NFORCE)
3224			buggy_irq = 1;
3225		else
3226			buggy_irq = 0;
3227	}
3228
3229	if ((err = snd_intel8x0_create(card, pci, pci_id->driver_data,
3230				       &chip)) < 0) {
3231		snd_card_free(card);
3232		return err;
3233	}
3234	card->private_data = chip;
3235
3236	if ((err = snd_intel8x0_mixer(chip, ac97_clock, ac97_quirk)) < 0) {
3237		snd_card_free(card);
3238		return err;
3239	}
3240	if ((err = snd_intel8x0_pcm(chip)) < 0) {
3241		snd_card_free(card);
3242		return err;
3243	}
3244
3245	snd_intel8x0_proc_init(chip);
3246
3247	snprintf(card->longname, sizeof(card->longname),
3248		 "%s with %s at irq %i", card->shortname,
3249		 snd_ac97_get_short_name(chip->ac97[0]), chip->irq);
3250
3251	if (ac97_clock == 0 || ac97_clock == 1) {
3252		if (ac97_clock == 0) {
3253			if (intel8x0_in_clock_list(chip) == 0)
3254				intel8x0_measure_ac97_clock(chip);
3255		} else {
3256			intel8x0_measure_ac97_clock(chip);
3257		}
3258	}
3259
3260	if ((err = snd_card_register(card)) < 0) {
3261		snd_card_free(card);
3262		return err;
3263	}
3264	pci_set_drvdata(pci, card);
3265	return 0;
3266}
3267
3268static void __devexit snd_intel8x0_remove(struct pci_dev *pci)
3269{
3270	snd_card_free(pci_get_drvdata(pci));
3271	pci_set_drvdata(pci, NULL);
3272}
3273
3274static struct pci_driver driver = {
3275	.name = "Intel ICH",
3276	.id_table = snd_intel8x0_ids,
3277	.probe = snd_intel8x0_probe,
3278	.remove = __devexit_p(snd_intel8x0_remove),
3279#ifdef CONFIG_PM
3280	.suspend = intel8x0_suspend,
3281	.resume = intel8x0_resume,
3282#endif
3283};
3284
3285
3286static int __init alsa_card_intel8x0_init(void)
3287{
3288	return pci_register_driver(&driver);
3289}
3290
3291static void __exit alsa_card_intel8x0_exit(void)
3292{
3293	pci_unregister_driver(&driver);
3294}
3295
3296module_init(alsa_card_intel8x0_init)
3297module_exit(alsa_card_intel8x0_exit)
3298