1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 *   ALSA driver for Intel ICH (i8x0) chipsets
4 *
5 *	Copyright (c) 2000 Jaroslav Kysela <perex@perex.cz>
6 *
7 *   This code also contains alpha support for SiS 735 chipsets provided
8 *   by Mike Pieper <mptei@users.sourceforge.net>. We have no datasheet
9 *   for SiS735, so the code is not fully functional.
10 *
11
12 */
13
14#include <linux/io.h>
15#include <linux/delay.h>
16#include <linux/interrupt.h>
17#include <linux/init.h>
18#include <linux/pci.h>
19#include <linux/slab.h>
20#include <linux/module.h>
21#include <sound/core.h>
22#include <sound/pcm.h>
23#include <sound/ac97_codec.h>
24#include <sound/info.h>
25#include <sound/initval.h>
26
27MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
28MODULE_DESCRIPTION("Intel 82801AA,82901AB,i810,i820,i830,i840,i845,MX440; SiS 7012; Ali 5455");
29MODULE_LICENSE("GPL");
30
31static int index = SNDRV_DEFAULT_IDX1;	/* Index 0-MAX */
32static char *id = SNDRV_DEFAULT_STR1;	/* ID for this card */
33static int ac97_clock;
34static char *ac97_quirk;
35static bool buggy_semaphore;
36static int buggy_irq = -1; /* auto-check */
37static bool xbox;
38static int spdif_aclink = -1;
39static int inside_vm = -1;
40
41module_param(index, int, 0444);
42MODULE_PARM_DESC(index, "Index value for Intel i8x0 soundcard.");
43module_param(id, charp, 0444);
44MODULE_PARM_DESC(id, "ID string for Intel i8x0 soundcard.");
45module_param(ac97_clock, int, 0444);
46MODULE_PARM_DESC(ac97_clock, "AC'97 codec clock (0 = allowlist + auto-detect, 1 = force autodetect).");
47module_param(ac97_quirk, charp, 0444);
48MODULE_PARM_DESC(ac97_quirk, "AC'97 workaround for strange hardware.");
49module_param(buggy_semaphore, bool, 0444);
50MODULE_PARM_DESC(buggy_semaphore, "Enable workaround for hardwares with problematic codec semaphores.");
51module_param(buggy_irq, bint, 0444);
52MODULE_PARM_DESC(buggy_irq, "Enable workaround for buggy interrupts on some motherboards.");
53module_param(xbox, bool, 0444);
54MODULE_PARM_DESC(xbox, "Set to 1 for Xbox, if you have problems with the AC'97 codec detection.");
55module_param(spdif_aclink, int, 0444);
56MODULE_PARM_DESC(spdif_aclink, "S/PDIF over AC-link.");
57module_param(inside_vm, bint, 0444);
58MODULE_PARM_DESC(inside_vm, "KVM/Parallels optimization.");
59
60/* just for backward compatibility */
61static bool enable;
62module_param(enable, bool, 0444);
63static int joystick;
64module_param(joystick, int, 0444);
65
66/*
67 *  Direct registers
68 */
69enum { DEVICE_INTEL, DEVICE_INTEL_ICH4, DEVICE_SIS, DEVICE_ALI, DEVICE_NFORCE };
70
71#define ICHREG(x) ICH_REG_##x
72
73#define DEFINE_REGSET(name,base) \
74enum { \
75	ICH_REG_##name##_BDBAR	= base + 0x0,	/* dword - buffer descriptor list base address */ \
76	ICH_REG_##name##_CIV	= base + 0x04,	/* byte - current index value */ \
77	ICH_REG_##name##_LVI	= base + 0x05,	/* byte - last valid index */ \
78	ICH_REG_##name##_SR	= base + 0x06,	/* byte - status register */ \
79	ICH_REG_##name##_PICB	= base + 0x08,	/* word - position in current buffer */ \
80	ICH_REG_##name##_PIV	= base + 0x0a,	/* byte - prefetched index value */ \
81	ICH_REG_##name##_CR	= base + 0x0b,	/* byte - control register */ \
82}
83
84/* busmaster blocks */
85DEFINE_REGSET(OFF, 0);		/* offset */
86DEFINE_REGSET(PI, 0x00);	/* PCM in */
87DEFINE_REGSET(PO, 0x10);	/* PCM out */
88DEFINE_REGSET(MC, 0x20);	/* Mic in */
89
90/* ICH4 busmaster blocks */
91DEFINE_REGSET(MC2, 0x40);	/* Mic in 2 */
92DEFINE_REGSET(PI2, 0x50);	/* PCM in 2 */
93DEFINE_REGSET(SP, 0x60);	/* SPDIF out */
94
95/* values for each busmaster block */
96
97/* LVI */
98#define ICH_REG_LVI_MASK		0x1f
99
100/* SR */
101#define ICH_FIFOE			0x10	/* FIFO error */
102#define ICH_BCIS			0x08	/* buffer completion interrupt status */
103#define ICH_LVBCI			0x04	/* last valid buffer completion interrupt */
104#define ICH_CELV			0x02	/* current equals last valid */
105#define ICH_DCH				0x01	/* DMA controller halted */
106
107/* PIV */
108#define ICH_REG_PIV_MASK		0x1f	/* mask */
109
110/* CR */
111#define ICH_IOCE			0x10	/* interrupt on completion enable */
112#define ICH_FEIE			0x08	/* fifo error interrupt enable */
113#define ICH_LVBIE			0x04	/* last valid buffer interrupt enable */
114#define ICH_RESETREGS			0x02	/* reset busmaster registers */
115#define ICH_STARTBM			0x01	/* start busmaster operation */
116
117
118/* global block */
119#define ICH_REG_GLOB_CNT		0x2c	/* dword - global control */
120#define   ICH_PCM_SPDIF_MASK	0xc0000000	/* s/pdif pcm slot mask (ICH4) */
121#define   ICH_PCM_SPDIF_NONE	0x00000000	/* reserved - undefined */
122#define   ICH_PCM_SPDIF_78	0x40000000	/* s/pdif pcm on slots 7&8 */
123#define   ICH_PCM_SPDIF_69	0x80000000	/* s/pdif pcm on slots 6&9 */
124#define   ICH_PCM_SPDIF_1011	0xc0000000	/* s/pdif pcm on slots 10&11 */
125#define   ICH_PCM_20BIT		0x00400000	/* 20-bit samples (ICH4) */
126#define   ICH_PCM_246_MASK	0x00300000	/* chan mask (not all chips) */
127#define   ICH_PCM_8		0x00300000      /* 8 channels (not all chips) */
128#define   ICH_PCM_6		0x00200000	/* 6 channels (not all chips) */
129#define   ICH_PCM_4		0x00100000	/* 4 channels (not all chips) */
130#define   ICH_PCM_2		0x00000000	/* 2 channels (stereo) */
131#define   ICH_SIS_PCM_246_MASK	0x000000c0	/* 6 channels (SIS7012) */
132#define   ICH_SIS_PCM_6		0x00000080	/* 6 channels (SIS7012) */
133#define   ICH_SIS_PCM_4		0x00000040	/* 4 channels (SIS7012) */
134#define   ICH_SIS_PCM_2		0x00000000	/* 2 channels (SIS7012) */
135#define   ICH_TRIE		0x00000040	/* tertiary resume interrupt enable */
136#define   ICH_SRIE		0x00000020	/* secondary resume interrupt enable */
137#define   ICH_PRIE		0x00000010	/* primary resume interrupt enable */
138#define   ICH_ACLINK		0x00000008	/* AClink shut off */
139#define   ICH_AC97WARM		0x00000004	/* AC'97 warm reset */
140#define   ICH_AC97COLD		0x00000002	/* AC'97 cold reset */
141#define   ICH_GIE		0x00000001	/* GPI interrupt enable */
142#define ICH_REG_GLOB_STA		0x30	/* dword - global status */
143#define   ICH_TRI		0x20000000	/* ICH4: tertiary (AC_SDIN2) resume interrupt */
144#define   ICH_TCR		0x10000000	/* ICH4: tertiary (AC_SDIN2) codec ready */
145#define   ICH_BCS		0x08000000	/* ICH4: bit clock stopped */
146#define   ICH_SPINT		0x04000000	/* ICH4: S/PDIF interrupt */
147#define   ICH_P2INT		0x02000000	/* ICH4: PCM2-In interrupt */
148#define   ICH_M2INT		0x01000000	/* ICH4: Mic2-In interrupt */
149#define   ICH_SAMPLE_CAP	0x00c00000	/* ICH4: sample capability bits (RO) */
150#define   ICH_SAMPLE_16_20	0x00400000	/* ICH4: 16- and 20-bit samples */
151#define   ICH_MULTICHAN_CAP	0x00300000	/* ICH4: multi-channel capability bits (RO) */
152#define   ICH_SIS_TRI		0x00080000	/* SIS: tertiary resume irq */
153#define   ICH_SIS_TCR		0x00040000	/* SIS: tertiary codec ready */
154#define   ICH_MD3		0x00020000	/* modem power down semaphore */
155#define   ICH_AD3		0x00010000	/* audio power down semaphore */
156#define   ICH_RCS		0x00008000	/* read completion status */
157#define   ICH_BIT3		0x00004000	/* bit 3 slot 12 */
158#define   ICH_BIT2		0x00002000	/* bit 2 slot 12 */
159#define   ICH_BIT1		0x00001000	/* bit 1 slot 12 */
160#define   ICH_SRI		0x00000800	/* secondary (AC_SDIN1) resume interrupt */
161#define   ICH_PRI		0x00000400	/* primary (AC_SDIN0) resume interrupt */
162#define   ICH_SCR		0x00000200	/* secondary (AC_SDIN1) codec ready */
163#define   ICH_PCR		0x00000100	/* primary (AC_SDIN0) codec ready */
164#define   ICH_MCINT		0x00000080	/* MIC capture interrupt */
165#define   ICH_POINT		0x00000040	/* playback interrupt */
166#define   ICH_PIINT		0x00000020	/* capture interrupt */
167#define   ICH_NVSPINT		0x00000010	/* nforce spdif interrupt */
168#define   ICH_MOINT		0x00000004	/* modem playback interrupt */
169#define   ICH_MIINT		0x00000002	/* modem capture interrupt */
170#define   ICH_GSCI		0x00000001	/* GPI status change interrupt */
171#define ICH_REG_ACC_SEMA		0x34	/* byte - codec write semaphore */
172#define   ICH_CAS		0x01		/* codec access semaphore */
173#define ICH_REG_SDM		0x80
174#define   ICH_DI2L_MASK		0x000000c0	/* PCM In 2, Mic In 2 data in line */
175#define   ICH_DI2L_SHIFT	6
176#define   ICH_DI1L_MASK		0x00000030	/* PCM In 1, Mic In 1 data in line */
177#define   ICH_DI1L_SHIFT	4
178#define   ICH_SE		0x00000008	/* steer enable */
179#define   ICH_LDI_MASK		0x00000003	/* last codec read data input */
180
181#define ICH_MAX_FRAGS		32		/* max hw frags */
182
183
184/*
185 * registers for Ali5455
186 */
187
188/* ALi 5455 busmaster blocks */
189DEFINE_REGSET(AL_PI, 0x40);	/* ALi PCM in */
190DEFINE_REGSET(AL_PO, 0x50);	/* Ali PCM out */
191DEFINE_REGSET(AL_MC, 0x60);	/* Ali Mic in */
192DEFINE_REGSET(AL_CDC_SPO, 0x70);	/* Ali Codec SPDIF out */
193DEFINE_REGSET(AL_CENTER, 0x80);		/* Ali center out */
194DEFINE_REGSET(AL_LFE, 0x90);		/* Ali center out */
195DEFINE_REGSET(AL_CLR_SPI, 0xa0);	/* Ali Controller SPDIF in */
196DEFINE_REGSET(AL_CLR_SPO, 0xb0);	/* Ali Controller SPDIF out */
197DEFINE_REGSET(AL_I2S, 0xc0);	/* Ali I2S in */
198DEFINE_REGSET(AL_PI2, 0xd0);	/* Ali PCM2 in */
199DEFINE_REGSET(AL_MC2, 0xe0);	/* Ali Mic2 in */
200
201enum {
202	ICH_REG_ALI_SCR = 0x00,		/* System Control Register */
203	ICH_REG_ALI_SSR = 0x04,		/* System Status Register  */
204	ICH_REG_ALI_DMACR = 0x08,	/* DMA Control Register    */
205	ICH_REG_ALI_FIFOCR1 = 0x0c,	/* FIFO Control Register 1  */
206	ICH_REG_ALI_INTERFACECR = 0x10,	/* Interface Control Register */
207	ICH_REG_ALI_INTERRUPTCR = 0x14,	/* Interrupt control Register */
208	ICH_REG_ALI_INTERRUPTSR = 0x18,	/* Interrupt  Status Register */
209	ICH_REG_ALI_FIFOCR2 = 0x1c,	/* FIFO Control Register 2   */
210	ICH_REG_ALI_CPR = 0x20,		/* Command Port Register     */
211	ICH_REG_ALI_CPR_ADDR = 0x22,	/* ac97 addr write */
212	ICH_REG_ALI_SPR = 0x24,		/* Status Port Register      */
213	ICH_REG_ALI_SPR_ADDR = 0x26,	/* ac97 addr read */
214	ICH_REG_ALI_FIFOCR3 = 0x2c,	/* FIFO Control Register 3  */
215	ICH_REG_ALI_TTSR = 0x30,	/* Transmit Tag Slot Register */
216	ICH_REG_ALI_RTSR = 0x34,	/* Receive Tag Slot  Register */
217	ICH_REG_ALI_CSPSR = 0x38,	/* Command/Status Port Status Register */
218	ICH_REG_ALI_CAS = 0x3c,		/* Codec Write Semaphore Register */
219	ICH_REG_ALI_HWVOL = 0xf0,	/* hardware volume control/status */
220	ICH_REG_ALI_I2SCR = 0xf4,	/* I2S control/status */
221	ICH_REG_ALI_SPDIFCSR = 0xf8,	/* spdif channel status register  */
222	ICH_REG_ALI_SPDIFICS = 0xfc,	/* spdif interface control/status  */
223};
224
225#define ALI_CAS_SEM_BUSY	0x80000000
226#define ALI_CPR_ADDR_SECONDARY	0x100
227#define ALI_CPR_ADDR_READ	0x80
228#define ALI_CSPSR_CODEC_READY	0x08
229#define ALI_CSPSR_READ_OK	0x02
230#define ALI_CSPSR_WRITE_OK	0x01
231
232/* interrupts for the whole chip by interrupt status register finish */
233
234#define ALI_INT_MICIN2		(1<<26)
235#define ALI_INT_PCMIN2		(1<<25)
236#define ALI_INT_I2SIN		(1<<24)
237#define ALI_INT_SPDIFOUT	(1<<23)	/* controller spdif out INTERRUPT */
238#define ALI_INT_SPDIFIN		(1<<22)
239#define ALI_INT_LFEOUT		(1<<21)
240#define ALI_INT_CENTEROUT	(1<<20)
241#define ALI_INT_CODECSPDIFOUT	(1<<19)
242#define ALI_INT_MICIN		(1<<18)
243#define ALI_INT_PCMOUT		(1<<17)
244#define ALI_INT_PCMIN		(1<<16)
245#define ALI_INT_CPRAIS		(1<<7)	/* command port available */
246#define ALI_INT_SPRAIS		(1<<5)	/* status port available */
247#define ALI_INT_GPIO		(1<<1)
248#define ALI_INT_MASK		(ALI_INT_SPDIFOUT|ALI_INT_CODECSPDIFOUT|\
249				 ALI_INT_MICIN|ALI_INT_PCMOUT|ALI_INT_PCMIN)
250
251#define ICH_ALI_SC_RESET	(1<<31)	/* master reset */
252#define ICH_ALI_SC_AC97_DBL	(1<<30)
253#define ICH_ALI_SC_CODEC_SPDF	(3<<20)	/* 1=7/8, 2=6/9, 3=10/11 */
254#define ICH_ALI_SC_IN_BITS	(3<<18)
255#define ICH_ALI_SC_OUT_BITS	(3<<16)
256#define ICH_ALI_SC_6CH_CFG	(3<<14)
257#define ICH_ALI_SC_PCM_4	(1<<8)
258#define ICH_ALI_SC_PCM_6	(2<<8)
259#define ICH_ALI_SC_PCM_246_MASK	(3<<8)
260
261#define ICH_ALI_SS_SEC_ID	(3<<5)
262#define ICH_ALI_SS_PRI_ID	(3<<3)
263
264#define ICH_ALI_IF_AC97SP	(1<<21)
265#define ICH_ALI_IF_MC		(1<<20)
266#define ICH_ALI_IF_PI		(1<<19)
267#define ICH_ALI_IF_MC2		(1<<18)
268#define ICH_ALI_IF_PI2		(1<<17)
269#define ICH_ALI_IF_LINE_SRC	(1<<15)	/* 0/1 = slot 3/6 */
270#define ICH_ALI_IF_MIC_SRC	(1<<14)	/* 0/1 = slot 3/6 */
271#define ICH_ALI_IF_SPDF_SRC	(3<<12)	/* 00 = PCM, 01 = AC97-in, 10 = spdif-in, 11 = i2s */
272#define ICH_ALI_IF_AC97_OUT	(3<<8)	/* 00 = PCM, 10 = spdif-in, 11 = i2s */
273#define ICH_ALI_IF_PO_SPDF	(1<<3)
274#define ICH_ALI_IF_PO		(1<<1)
275
276/*
277 *
278 */
279
280enum {
281	ICHD_PCMIN,
282	ICHD_PCMOUT,
283	ICHD_MIC,
284	ICHD_MIC2,
285	ICHD_PCM2IN,
286	ICHD_SPBAR,
287	ICHD_LAST = ICHD_SPBAR
288};
289enum {
290	NVD_PCMIN,
291	NVD_PCMOUT,
292	NVD_MIC,
293	NVD_SPBAR,
294	NVD_LAST = NVD_SPBAR
295};
296enum {
297	ALID_PCMIN,
298	ALID_PCMOUT,
299	ALID_MIC,
300	ALID_AC97SPDIFOUT,
301	ALID_SPDIFIN,
302	ALID_SPDIFOUT,
303	ALID_LAST = ALID_SPDIFOUT
304};
305
306#define get_ichdev(substream) (substream->runtime->private_data)
307
308struct ichdev {
309	unsigned int ichd;			/* ich device number */
310	unsigned long reg_offset;		/* offset to bmaddr */
311	__le32 *bdbar;				/* CPU address (32bit) */
312	unsigned int bdbar_addr;		/* PCI bus address (32bit) */
313	struct snd_pcm_substream *substream;
314	unsigned int physbuf;			/* physical address (32bit) */
315        unsigned int size;
316        unsigned int fragsize;
317        unsigned int fragsize1;
318        unsigned int position;
319	unsigned int pos_shift;
320	unsigned int last_pos;
321        int frags;
322        int lvi;
323        int lvi_frag;
324	int civ;
325	int ack;
326	int ack_reload;
327	unsigned int ack_bit;
328	unsigned int roff_sr;
329	unsigned int roff_picb;
330	unsigned int int_sta_mask;		/* interrupt status mask */
331	unsigned int ali_slot;			/* ALI DMA slot */
332	struct ac97_pcm *pcm;
333	int pcm_open_flag;
334	unsigned int prepared:1;
335	unsigned int suspended: 1;
336};
337
338struct intel8x0 {
339	unsigned int device_type;
340
341	int irq;
342
343	void __iomem *addr;
344	void __iomem *bmaddr;
345
346	struct pci_dev *pci;
347	struct snd_card *card;
348
349	int pcm_devs;
350	struct snd_pcm *pcm[6];
351	struct ichdev ichd[6];
352
353	unsigned multi4: 1,
354		 multi6: 1,
355		 multi8 :1,
356		 dra: 1,
357		 smp20bit: 1;
358	unsigned in_ac97_init: 1,
359		 in_sdin_init: 1;
360	unsigned in_measurement: 1;	/* during ac97 clock measurement */
361	unsigned fix_nocache: 1; 	/* workaround for 440MX */
362	unsigned buggy_irq: 1;		/* workaround for buggy mobos */
363	unsigned xbox: 1;		/* workaround for Xbox AC'97 detection */
364	unsigned buggy_semaphore: 1;	/* workaround for buggy codec semaphore */
365	unsigned inside_vm: 1;		/* enable VM optimization */
366
367	int spdif_idx;	/* SPDIF BAR index; *_SPBAR or -1 if use PCMOUT */
368	unsigned int sdm_saved;	/* SDM reg value */
369
370	struct snd_ac97_bus *ac97_bus;
371	struct snd_ac97 *ac97[3];
372	unsigned int ac97_sdin[3];
373	unsigned int max_codecs, ncodecs;
374	const unsigned int *codec_bit;
375	unsigned int codec_isr_bits;
376	unsigned int codec_ready_bits;
377
378	spinlock_t reg_lock;
379
380	u32 bdbars_count;
381	struct snd_dma_buffer *bdbars;
382	u32 int_sta_reg;		/* interrupt status register */
383	u32 int_sta_mask;		/* interrupt status mask */
384};
385
386static const struct pci_device_id snd_intel8x0_ids[] = {
387	{ PCI_VDEVICE(INTEL, 0x2415), DEVICE_INTEL },	/* 82801AA */
388	{ PCI_VDEVICE(INTEL, 0x2425), DEVICE_INTEL },	/* 82901AB */
389	{ PCI_VDEVICE(INTEL, 0x2445), DEVICE_INTEL },	/* 82801BA */
390	{ PCI_VDEVICE(INTEL, 0x2485), DEVICE_INTEL },	/* ICH3 */
391	{ PCI_VDEVICE(INTEL, 0x24c5), DEVICE_INTEL_ICH4 }, /* ICH4 */
392	{ PCI_VDEVICE(INTEL, 0x24d5), DEVICE_INTEL_ICH4 }, /* ICH5 */
393	{ PCI_VDEVICE(INTEL, 0x25a6), DEVICE_INTEL_ICH4 }, /* ESB */
394	{ PCI_VDEVICE(INTEL, 0x266e), DEVICE_INTEL_ICH4 }, /* ICH6 */
395	{ PCI_VDEVICE(INTEL, 0x27de), DEVICE_INTEL_ICH4 }, /* ICH7 */
396	{ PCI_VDEVICE(INTEL, 0x2698), DEVICE_INTEL_ICH4 }, /* ESB2 */
397	{ PCI_VDEVICE(INTEL, 0x7195), DEVICE_INTEL },	/* 440MX */
398	{ PCI_VDEVICE(SI, 0x7012), DEVICE_SIS },	/* SI7012 */
399	{ PCI_VDEVICE(NVIDIA, 0x01b1), DEVICE_NFORCE },	/* NFORCE */
400	{ PCI_VDEVICE(NVIDIA, 0x003a), DEVICE_NFORCE },	/* MCP04 */
401	{ PCI_VDEVICE(NVIDIA, 0x006a), DEVICE_NFORCE },	/* NFORCE2 */
402	{ PCI_VDEVICE(NVIDIA, 0x0059), DEVICE_NFORCE },	/* CK804 */
403	{ PCI_VDEVICE(NVIDIA, 0x008a), DEVICE_NFORCE },	/* CK8 */
404	{ PCI_VDEVICE(NVIDIA, 0x00da), DEVICE_NFORCE },	/* NFORCE3 */
405	{ PCI_VDEVICE(NVIDIA, 0x00ea), DEVICE_NFORCE },	/* CK8S */
406	{ PCI_VDEVICE(NVIDIA, 0x026b), DEVICE_NFORCE },	/* MCP51 */
407	{ PCI_VDEVICE(AMD, 0x746d), DEVICE_INTEL },	/* AMD8111 */
408	{ PCI_VDEVICE(AMD, 0x7445), DEVICE_INTEL },	/* AMD768 */
409	{ PCI_VDEVICE(AL, 0x5455), DEVICE_ALI },   /* Ali5455 */
410	{ 0, }
411};
412
413MODULE_DEVICE_TABLE(pci, snd_intel8x0_ids);
414
415/*
416 *  Lowlevel I/O - busmaster
417 */
418
419static inline u8 igetbyte(struct intel8x0 *chip, u32 offset)
420{
421	return ioread8(chip->bmaddr + offset);
422}
423
424static inline u16 igetword(struct intel8x0 *chip, u32 offset)
425{
426	return ioread16(chip->bmaddr + offset);
427}
428
429static inline u32 igetdword(struct intel8x0 *chip, u32 offset)
430{
431	return ioread32(chip->bmaddr + offset);
432}
433
434static inline void iputbyte(struct intel8x0 *chip, u32 offset, u8 val)
435{
436	iowrite8(val, chip->bmaddr + offset);
437}
438
439static inline void iputword(struct intel8x0 *chip, u32 offset, u16 val)
440{
441	iowrite16(val, chip->bmaddr + offset);
442}
443
444static inline void iputdword(struct intel8x0 *chip, u32 offset, u32 val)
445{
446	iowrite32(val, chip->bmaddr + offset);
447}
448
449/*
450 *  Lowlevel I/O - AC'97 registers
451 */
452
453static inline u16 iagetword(struct intel8x0 *chip, u32 offset)
454{
455	return ioread16(chip->addr + offset);
456}
457
458static inline void iaputword(struct intel8x0 *chip, u32 offset, u16 val)
459{
460	iowrite16(val, chip->addr + offset);
461}
462
463/*
464 *  Basic I/O
465 */
466
467/*
468 * access to AC97 codec via normal i/o (for ICH and SIS7012)
469 */
470
471static int snd_intel8x0_codec_semaphore(struct intel8x0 *chip, unsigned int codec)
472{
473	int time;
474
475	if (codec > 2)
476		return -EIO;
477	if (chip->in_sdin_init) {
478		/* we don't know the ready bit assignment at the moment */
479		/* so we check any */
480		codec = chip->codec_isr_bits;
481	} else {
482		codec = chip->codec_bit[chip->ac97_sdin[codec]];
483	}
484
485	/* codec ready ? */
486	if ((igetdword(chip, ICHREG(GLOB_STA)) & codec) == 0)
487		return -EIO;
488
489	if (chip->buggy_semaphore)
490		return 0; /* just ignore ... */
491
492	/* Anyone holding a semaphore for 1 msec should be shot... */
493	time = 100;
494      	do {
495      		if (!(igetbyte(chip, ICHREG(ACC_SEMA)) & ICH_CAS))
496      			return 0;
497		udelay(10);
498	} while (time--);
499
500	/* access to some forbidden (non existent) ac97 registers will not
501	 * reset the semaphore. So even if you don't get the semaphore, still
502	 * continue the access. We don't need the semaphore anyway. */
503	dev_err(chip->card->dev,
504		"codec_semaphore: semaphore is not ready [0x%x][0x%x]\n",
505			igetbyte(chip, ICHREG(ACC_SEMA)), igetdword(chip, ICHREG(GLOB_STA)));
506	iagetword(chip, 0);	/* clear semaphore flag */
507	/* I don't care about the semaphore */
508	return -EBUSY;
509}
510
511static void snd_intel8x0_codec_write(struct snd_ac97 *ac97,
512				     unsigned short reg,
513				     unsigned short val)
514{
515	struct intel8x0 *chip = ac97->private_data;
516
517	if (snd_intel8x0_codec_semaphore(chip, ac97->num) < 0) {
518		if (! chip->in_ac97_init)
519			dev_err(chip->card->dev,
520				"codec_write %d: semaphore is not ready for register 0x%x\n",
521				ac97->num, reg);
522	}
523	iaputword(chip, reg + ac97->num * 0x80, val);
524}
525
526static unsigned short snd_intel8x0_codec_read(struct snd_ac97 *ac97,
527					      unsigned short reg)
528{
529	struct intel8x0 *chip = ac97->private_data;
530	unsigned short res;
531	unsigned int tmp;
532
533	if (snd_intel8x0_codec_semaphore(chip, ac97->num) < 0) {
534		if (! chip->in_ac97_init)
535			dev_err(chip->card->dev,
536				"codec_read %d: semaphore is not ready for register 0x%x\n",
537				ac97->num, reg);
538		res = 0xffff;
539	} else {
540		res = iagetword(chip, reg + ac97->num * 0x80);
541		tmp = igetdword(chip, ICHREG(GLOB_STA));
542		if (tmp & ICH_RCS) {
543			/* reset RCS and preserve other R/WC bits */
544			iputdword(chip, ICHREG(GLOB_STA), tmp &
545				  ~(chip->codec_ready_bits | ICH_GSCI));
546			if (! chip->in_ac97_init)
547				dev_err(chip->card->dev,
548					"codec_read %d: read timeout for register 0x%x\n",
549					ac97->num, reg);
550			res = 0xffff;
551		}
552	}
553	return res;
554}
555
556static void snd_intel8x0_codec_read_test(struct intel8x0 *chip,
557					 unsigned int codec)
558{
559	unsigned int tmp;
560
561	if (snd_intel8x0_codec_semaphore(chip, codec) >= 0) {
562		iagetword(chip, codec * 0x80);
563		tmp = igetdword(chip, ICHREG(GLOB_STA));
564		if (tmp & ICH_RCS) {
565			/* reset RCS and preserve other R/WC bits */
566			iputdword(chip, ICHREG(GLOB_STA), tmp &
567				  ~(chip->codec_ready_bits | ICH_GSCI));
568		}
569	}
570}
571
572/*
573 * access to AC97 for Ali5455
574 */
575static int snd_intel8x0_ali_codec_ready(struct intel8x0 *chip, int mask)
576{
577	int count = 0;
578	for (count = 0; count < 0x7f; count++) {
579		int val = igetbyte(chip, ICHREG(ALI_CSPSR));
580		if (val & mask)
581			return 0;
582	}
583	if (! chip->in_ac97_init)
584		dev_warn(chip->card->dev, "AC97 codec ready timeout.\n");
585	return -EBUSY;
586}
587
588static int snd_intel8x0_ali_codec_semaphore(struct intel8x0 *chip)
589{
590	int time = 100;
591	if (chip->buggy_semaphore)
592		return 0; /* just ignore ... */
593	while (--time && (igetdword(chip, ICHREG(ALI_CAS)) & ALI_CAS_SEM_BUSY))
594		udelay(1);
595	if (! time && ! chip->in_ac97_init)
596		dev_warn(chip->card->dev, "ali_codec_semaphore timeout\n");
597	return snd_intel8x0_ali_codec_ready(chip, ALI_CSPSR_CODEC_READY);
598}
599
600static unsigned short snd_intel8x0_ali_codec_read(struct snd_ac97 *ac97, unsigned short reg)
601{
602	struct intel8x0 *chip = ac97->private_data;
603	unsigned short data = 0xffff;
604
605	if (snd_intel8x0_ali_codec_semaphore(chip))
606		goto __err;
607	reg |= ALI_CPR_ADDR_READ;
608	if (ac97->num)
609		reg |= ALI_CPR_ADDR_SECONDARY;
610	iputword(chip, ICHREG(ALI_CPR_ADDR), reg);
611	if (snd_intel8x0_ali_codec_ready(chip, ALI_CSPSR_READ_OK))
612		goto __err;
613	data = igetword(chip, ICHREG(ALI_SPR));
614 __err:
615	return data;
616}
617
618static void snd_intel8x0_ali_codec_write(struct snd_ac97 *ac97, unsigned short reg,
619					 unsigned short val)
620{
621	struct intel8x0 *chip = ac97->private_data;
622
623	if (snd_intel8x0_ali_codec_semaphore(chip))
624		return;
625	iputword(chip, ICHREG(ALI_CPR), val);
626	if (ac97->num)
627		reg |= ALI_CPR_ADDR_SECONDARY;
628	iputword(chip, ICHREG(ALI_CPR_ADDR), reg);
629	snd_intel8x0_ali_codec_ready(chip, ALI_CSPSR_WRITE_OK);
630}
631
632
633/*
634 * DMA I/O
635 */
636static void snd_intel8x0_setup_periods(struct intel8x0 *chip, struct ichdev *ichdev)
637{
638	int idx;
639	__le32 *bdbar = ichdev->bdbar;
640	unsigned long port = ichdev->reg_offset;
641
642	iputdword(chip, port + ICH_REG_OFF_BDBAR, ichdev->bdbar_addr);
643	if (ichdev->size == ichdev->fragsize) {
644		ichdev->ack_reload = ichdev->ack = 2;
645		ichdev->fragsize1 = ichdev->fragsize >> 1;
646		for (idx = 0; idx < (ICH_REG_LVI_MASK + 1) * 2; idx += 4) {
647			bdbar[idx + 0] = cpu_to_le32(ichdev->physbuf);
648			bdbar[idx + 1] = cpu_to_le32(0x80000000 | /* interrupt on completion */
649						     ichdev->fragsize1 >> ichdev->pos_shift);
650			bdbar[idx + 2] = cpu_to_le32(ichdev->physbuf + (ichdev->size >> 1));
651			bdbar[idx + 3] = cpu_to_le32(0x80000000 | /* interrupt on completion */
652						     ichdev->fragsize1 >> ichdev->pos_shift);
653		}
654		ichdev->frags = 2;
655	} else {
656		ichdev->ack_reload = ichdev->ack = 1;
657		ichdev->fragsize1 = ichdev->fragsize;
658		for (idx = 0; idx < (ICH_REG_LVI_MASK + 1) * 2; idx += 2) {
659			bdbar[idx + 0] = cpu_to_le32(ichdev->physbuf +
660						     (((idx >> 1) * ichdev->fragsize) %
661						      ichdev->size));
662			bdbar[idx + 1] = cpu_to_le32(0x80000000 | /* interrupt on completion */
663						     ichdev->fragsize >> ichdev->pos_shift);
664#if 0
665			dev_dbg(chip->card->dev, "bdbar[%i] = 0x%x [0x%x]\n",
666			       idx + 0, bdbar[idx + 0], bdbar[idx + 1]);
667#endif
668		}
669		ichdev->frags = ichdev->size / ichdev->fragsize;
670	}
671	iputbyte(chip, port + ICH_REG_OFF_LVI, ichdev->lvi = ICH_REG_LVI_MASK);
672	ichdev->civ = 0;
673	iputbyte(chip, port + ICH_REG_OFF_CIV, 0);
674	ichdev->lvi_frag = ICH_REG_LVI_MASK % ichdev->frags;
675	ichdev->position = 0;
676#if 0
677	dev_dbg(chip->card->dev,
678		"lvi_frag = %i, frags = %i, period_size = 0x%x, period_size1 = 0x%x\n",
679	       ichdev->lvi_frag, ichdev->frags, ichdev->fragsize,
680	       ichdev->fragsize1);
681#endif
682	/* clear interrupts */
683	iputbyte(chip, port + ichdev->roff_sr, ICH_FIFOE | ICH_BCIS | ICH_LVBCI);
684}
685
686/*
687 *  Interrupt handler
688 */
689
690static inline void snd_intel8x0_update(struct intel8x0 *chip, struct ichdev *ichdev)
691{
692	unsigned long port = ichdev->reg_offset;
693	unsigned long flags;
694	int status, civ, i, step;
695	int ack = 0;
696
697	if (!(ichdev->prepared || chip->in_measurement) || ichdev->suspended)
698		return;
699
700	spin_lock_irqsave(&chip->reg_lock, flags);
701	status = igetbyte(chip, port + ichdev->roff_sr);
702	civ = igetbyte(chip, port + ICH_REG_OFF_CIV);
703	if (!(status & ICH_BCIS)) {
704		step = 0;
705	} else if (civ == ichdev->civ) {
706		// snd_printd("civ same %d\n", civ);
707		step = 1;
708		ichdev->civ++;
709		ichdev->civ &= ICH_REG_LVI_MASK;
710	} else {
711		step = civ - ichdev->civ;
712		if (step < 0)
713			step += ICH_REG_LVI_MASK + 1;
714		// if (step != 1)
715		//	snd_printd("step = %d, %d -> %d\n", step, ichdev->civ, civ);
716		ichdev->civ = civ;
717	}
718
719	ichdev->position += step * ichdev->fragsize1;
720	if (! chip->in_measurement)
721		ichdev->position %= ichdev->size;
722	ichdev->lvi += step;
723	ichdev->lvi &= ICH_REG_LVI_MASK;
724	iputbyte(chip, port + ICH_REG_OFF_LVI, ichdev->lvi);
725	for (i = 0; i < step; i++) {
726		ichdev->lvi_frag++;
727		ichdev->lvi_frag %= ichdev->frags;
728		ichdev->bdbar[ichdev->lvi * 2] = cpu_to_le32(ichdev->physbuf + ichdev->lvi_frag * ichdev->fragsize1);
729#if 0
730	dev_dbg(chip->card->dev,
731		"new: bdbar[%i] = 0x%x [0x%x], prefetch = %i, all = 0x%x, 0x%x\n",
732	       ichdev->lvi * 2, ichdev->bdbar[ichdev->lvi * 2],
733	       ichdev->bdbar[ichdev->lvi * 2 + 1], inb(ICH_REG_OFF_PIV + port),
734	       inl(port + 4), inb(port + ICH_REG_OFF_CR));
735#endif
736		if (--ichdev->ack == 0) {
737			ichdev->ack = ichdev->ack_reload;
738			ack = 1;
739		}
740	}
741	spin_unlock_irqrestore(&chip->reg_lock, flags);
742	if (ack && ichdev->substream) {
743		snd_pcm_period_elapsed(ichdev->substream);
744	}
745	iputbyte(chip, port + ichdev->roff_sr,
746		 status & (ICH_FIFOE | ICH_BCIS | ICH_LVBCI));
747}
748
749static irqreturn_t snd_intel8x0_interrupt(int irq, void *dev_id)
750{
751	struct intel8x0 *chip = dev_id;
752	struct ichdev *ichdev;
753	unsigned int status;
754	unsigned int i;
755
756	status = igetdword(chip, chip->int_sta_reg);
757	if (status == 0xffffffff)	/* we are not yet resumed */
758		return IRQ_NONE;
759
760	if ((status & chip->int_sta_mask) == 0) {
761		if (status) {
762			/* ack */
763			iputdword(chip, chip->int_sta_reg, status);
764			if (! chip->buggy_irq)
765				status = 0;
766		}
767		return IRQ_RETVAL(status);
768	}
769
770	for (i = 0; i < chip->bdbars_count; i++) {
771		ichdev = &chip->ichd[i];
772		if (status & ichdev->int_sta_mask)
773			snd_intel8x0_update(chip, ichdev);
774	}
775
776	/* ack them */
777	iputdword(chip, chip->int_sta_reg, status & chip->int_sta_mask);
778
779	return IRQ_HANDLED;
780}
781
782/*
783 *  PCM part
784 */
785
786static int snd_intel8x0_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
787{
788	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
789	struct ichdev *ichdev = get_ichdev(substream);
790	unsigned char val = 0;
791	unsigned long port = ichdev->reg_offset;
792
793	switch (cmd) {
794	case SNDRV_PCM_TRIGGER_RESUME:
795		ichdev->suspended = 0;
796		fallthrough;
797	case SNDRV_PCM_TRIGGER_START:
798	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
799		val = ICH_IOCE | ICH_STARTBM;
800		ichdev->last_pos = ichdev->position;
801		break;
802	case SNDRV_PCM_TRIGGER_SUSPEND:
803		ichdev->suspended = 1;
804		fallthrough;
805	case SNDRV_PCM_TRIGGER_STOP:
806		val = 0;
807		break;
808	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
809		val = ICH_IOCE;
810		break;
811	default:
812		return -EINVAL;
813	}
814	iputbyte(chip, port + ICH_REG_OFF_CR, val);
815	if (cmd == SNDRV_PCM_TRIGGER_STOP) {
816		/* wait until DMA stopped */
817		while (!(igetbyte(chip, port + ichdev->roff_sr) & ICH_DCH)) ;
818		/* reset whole DMA things */
819		iputbyte(chip, port + ICH_REG_OFF_CR, ICH_RESETREGS);
820	}
821	return 0;
822}
823
824static int snd_intel8x0_ali_trigger(struct snd_pcm_substream *substream, int cmd)
825{
826	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
827	struct ichdev *ichdev = get_ichdev(substream);
828	unsigned long port = ichdev->reg_offset;
829	static const int fiforeg[] = {
830		ICHREG(ALI_FIFOCR1), ICHREG(ALI_FIFOCR2), ICHREG(ALI_FIFOCR3)
831	};
832	unsigned int val, fifo;
833
834	val = igetdword(chip, ICHREG(ALI_DMACR));
835	switch (cmd) {
836	case SNDRV_PCM_TRIGGER_RESUME:
837		ichdev->suspended = 0;
838		fallthrough;
839	case SNDRV_PCM_TRIGGER_START:
840	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
841		if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
842			/* clear FIFO for synchronization of channels */
843			fifo = igetdword(chip, fiforeg[ichdev->ali_slot / 4]);
844			fifo &= ~(0xff << (ichdev->ali_slot % 4));
845			fifo |= 0x83 << (ichdev->ali_slot % 4);
846			iputdword(chip, fiforeg[ichdev->ali_slot / 4], fifo);
847		}
848		iputbyte(chip, port + ICH_REG_OFF_CR, ICH_IOCE);
849		val &= ~(1 << (ichdev->ali_slot + 16)); /* clear PAUSE flag */
850		/* start DMA */
851		iputdword(chip, ICHREG(ALI_DMACR), val | (1 << ichdev->ali_slot));
852		break;
853	case SNDRV_PCM_TRIGGER_SUSPEND:
854		ichdev->suspended = 1;
855		fallthrough;
856	case SNDRV_PCM_TRIGGER_STOP:
857	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
858		/* pause */
859		iputdword(chip, ICHREG(ALI_DMACR), val | (1 << (ichdev->ali_slot + 16)));
860		iputbyte(chip, port + ICH_REG_OFF_CR, 0);
861		while (igetbyte(chip, port + ICH_REG_OFF_CR))
862			;
863		if (cmd == SNDRV_PCM_TRIGGER_PAUSE_PUSH)
864			break;
865		/* reset whole DMA things */
866		iputbyte(chip, port + ICH_REG_OFF_CR, ICH_RESETREGS);
867		/* clear interrupts */
868		iputbyte(chip, port + ICH_REG_OFF_SR,
869			 igetbyte(chip, port + ICH_REG_OFF_SR) | 0x1e);
870		iputdword(chip, ICHREG(ALI_INTERRUPTSR),
871			  igetdword(chip, ICHREG(ALI_INTERRUPTSR)) & ichdev->int_sta_mask);
872		break;
873	default:
874		return -EINVAL;
875	}
876	return 0;
877}
878
879static int snd_intel8x0_hw_params(struct snd_pcm_substream *substream,
880				  struct snd_pcm_hw_params *hw_params)
881{
882	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
883	struct ichdev *ichdev = get_ichdev(substream);
884	int dbl = params_rate(hw_params) > 48000;
885	int err;
886
887	if (ichdev->pcm_open_flag) {
888		snd_ac97_pcm_close(ichdev->pcm);
889		ichdev->pcm_open_flag = 0;
890		ichdev->prepared = 0;
891	}
892	err = snd_ac97_pcm_open(ichdev->pcm, params_rate(hw_params),
893				params_channels(hw_params),
894				ichdev->pcm->r[dbl].slots);
895	if (err >= 0) {
896		ichdev->pcm_open_flag = 1;
897		/* Force SPDIF setting */
898		if (ichdev->ichd == ICHD_PCMOUT && chip->spdif_idx < 0)
899			snd_ac97_set_rate(ichdev->pcm->r[0].codec[0], AC97_SPDIF,
900					  params_rate(hw_params));
901	}
902	return err;
903}
904
905static int snd_intel8x0_hw_free(struct snd_pcm_substream *substream)
906{
907	struct ichdev *ichdev = get_ichdev(substream);
908
909	if (ichdev->pcm_open_flag) {
910		snd_ac97_pcm_close(ichdev->pcm);
911		ichdev->pcm_open_flag = 0;
912		ichdev->prepared = 0;
913	}
914	return 0;
915}
916
917static void snd_intel8x0_setup_pcm_out(struct intel8x0 *chip,
918				       struct snd_pcm_runtime *runtime)
919{
920	unsigned int cnt;
921	int dbl = runtime->rate > 48000;
922
923	spin_lock_irq(&chip->reg_lock);
924	switch (chip->device_type) {
925	case DEVICE_ALI:
926		cnt = igetdword(chip, ICHREG(ALI_SCR));
927		cnt &= ~ICH_ALI_SC_PCM_246_MASK;
928		if (runtime->channels == 4 || dbl)
929			cnt |= ICH_ALI_SC_PCM_4;
930		else if (runtime->channels == 6)
931			cnt |= ICH_ALI_SC_PCM_6;
932		iputdword(chip, ICHREG(ALI_SCR), cnt);
933		break;
934	case DEVICE_SIS:
935		cnt = igetdword(chip, ICHREG(GLOB_CNT));
936		cnt &= ~ICH_SIS_PCM_246_MASK;
937		if (runtime->channels == 4 || dbl)
938			cnt |= ICH_SIS_PCM_4;
939		else if (runtime->channels == 6)
940			cnt |= ICH_SIS_PCM_6;
941		iputdword(chip, ICHREG(GLOB_CNT), cnt);
942		break;
943	default:
944		cnt = igetdword(chip, ICHREG(GLOB_CNT));
945		cnt &= ~(ICH_PCM_246_MASK | ICH_PCM_20BIT);
946		if (runtime->channels == 4 || dbl)
947			cnt |= ICH_PCM_4;
948		else if (runtime->channels == 6)
949			cnt |= ICH_PCM_6;
950		else if (runtime->channels == 8)
951			cnt |= ICH_PCM_8;
952		if (chip->device_type == DEVICE_NFORCE) {
953			/* reset to 2ch once to keep the 6 channel data in alignment,
954			 * to start from Front Left always
955			 */
956			if (cnt & ICH_PCM_246_MASK) {
957				iputdword(chip, ICHREG(GLOB_CNT), cnt & ~ICH_PCM_246_MASK);
958				spin_unlock_irq(&chip->reg_lock);
959				msleep(50); /* grrr... */
960				spin_lock_irq(&chip->reg_lock);
961			}
962		} else if (chip->device_type == DEVICE_INTEL_ICH4) {
963			if (runtime->sample_bits > 16)
964				cnt |= ICH_PCM_20BIT;
965		}
966		iputdword(chip, ICHREG(GLOB_CNT), cnt);
967		break;
968	}
969	spin_unlock_irq(&chip->reg_lock);
970}
971
972static int snd_intel8x0_pcm_prepare(struct snd_pcm_substream *substream)
973{
974	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
975	struct snd_pcm_runtime *runtime = substream->runtime;
976	struct ichdev *ichdev = get_ichdev(substream);
977
978	ichdev->physbuf = runtime->dma_addr;
979	ichdev->size = snd_pcm_lib_buffer_bytes(substream);
980	ichdev->fragsize = snd_pcm_lib_period_bytes(substream);
981	if (ichdev->ichd == ICHD_PCMOUT) {
982		snd_intel8x0_setup_pcm_out(chip, runtime);
983		if (chip->device_type == DEVICE_INTEL_ICH4)
984			ichdev->pos_shift = (runtime->sample_bits > 16) ? 2 : 1;
985	}
986	snd_intel8x0_setup_periods(chip, ichdev);
987	ichdev->prepared = 1;
988	return 0;
989}
990
991static snd_pcm_uframes_t snd_intel8x0_pcm_pointer(struct snd_pcm_substream *substream)
992{
993	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
994	struct ichdev *ichdev = get_ichdev(substream);
995	size_t ptr1, ptr;
996	int civ, timeout = 10;
997	unsigned int position;
998
999	spin_lock(&chip->reg_lock);
1000	do {
1001		civ = igetbyte(chip, ichdev->reg_offset + ICH_REG_OFF_CIV);
1002		ptr1 = igetword(chip, ichdev->reg_offset + ichdev->roff_picb);
1003		position = ichdev->position;
1004		if (ptr1 == 0) {
1005			udelay(10);
1006			continue;
1007		}
1008		if (civ != igetbyte(chip, ichdev->reg_offset + ICH_REG_OFF_CIV))
1009			continue;
1010
1011		/* IO read operation is very expensive inside virtual machine
1012		 * as it is emulated. The probability that subsequent PICB read
1013		 * will return different result is high enough to loop till
1014		 * timeout here.
1015		 * Same CIV is strict enough condition to be sure that PICB
1016		 * is valid inside VM on emulated card. */
1017		if (chip->inside_vm)
1018			break;
1019		if (ptr1 == igetword(chip, ichdev->reg_offset + ichdev->roff_picb))
1020			break;
1021	} while (timeout--);
1022	ptr = ichdev->last_pos;
1023	if (ptr1 != 0) {
1024		ptr1 <<= ichdev->pos_shift;
1025		ptr = ichdev->fragsize1 - ptr1;
1026		ptr += position;
1027		if (ptr < ichdev->last_pos) {
1028			unsigned int pos_base, last_base;
1029			pos_base = position / ichdev->fragsize1;
1030			last_base = ichdev->last_pos / ichdev->fragsize1;
1031			/* another sanity check; ptr1 can go back to full
1032			 * before the base position is updated
1033			 */
1034			if (pos_base == last_base)
1035				ptr = ichdev->last_pos;
1036		}
1037	}
1038	ichdev->last_pos = ptr;
1039	spin_unlock(&chip->reg_lock);
1040	if (ptr >= ichdev->size)
1041		return 0;
1042	return bytes_to_frames(substream->runtime, ptr);
1043}
1044
1045static const struct snd_pcm_hardware snd_intel8x0_stream =
1046{
1047	.info =			(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1048				 SNDRV_PCM_INFO_BLOCK_TRANSFER |
1049				 SNDRV_PCM_INFO_MMAP_VALID |
1050				 SNDRV_PCM_INFO_PAUSE |
1051				 SNDRV_PCM_INFO_RESUME),
1052	.formats =		SNDRV_PCM_FMTBIT_S16_LE,
1053	.rates =		SNDRV_PCM_RATE_48000,
1054	.rate_min =		48000,
1055	.rate_max =		48000,
1056	.channels_min =		2,
1057	.channels_max =		2,
1058	.buffer_bytes_max =	128 * 1024,
1059	.period_bytes_min =	32,
1060	.period_bytes_max =	128 * 1024,
1061	.periods_min =		1,
1062	.periods_max =		1024,
1063	.fifo_size =		0,
1064};
1065
1066static const unsigned int channels4[] = {
1067	2, 4,
1068};
1069
1070static const struct snd_pcm_hw_constraint_list hw_constraints_channels4 = {
1071	.count = ARRAY_SIZE(channels4),
1072	.list = channels4,
1073	.mask = 0,
1074};
1075
1076static const unsigned int channels6[] = {
1077	2, 4, 6,
1078};
1079
1080static const struct snd_pcm_hw_constraint_list hw_constraints_channels6 = {
1081	.count = ARRAY_SIZE(channels6),
1082	.list = channels6,
1083	.mask = 0,
1084};
1085
1086static const unsigned int channels8[] = {
1087	2, 4, 6, 8,
1088};
1089
1090static const struct snd_pcm_hw_constraint_list hw_constraints_channels8 = {
1091	.count = ARRAY_SIZE(channels8),
1092	.list = channels8,
1093	.mask = 0,
1094};
1095
1096static int snd_intel8x0_pcm_open(struct snd_pcm_substream *substream, struct ichdev *ichdev)
1097{
1098	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1099	struct snd_pcm_runtime *runtime = substream->runtime;
1100	int err;
1101
1102	ichdev->substream = substream;
1103	runtime->hw = snd_intel8x0_stream;
1104	runtime->hw.rates = ichdev->pcm->rates;
1105	snd_pcm_limit_hw_rates(runtime);
1106	if (chip->device_type == DEVICE_SIS) {
1107		runtime->hw.buffer_bytes_max = 64*1024;
1108		runtime->hw.period_bytes_max = 64*1024;
1109	}
1110	err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS);
1111	if (err < 0)
1112		return err;
1113	runtime->private_data = ichdev;
1114	return 0;
1115}
1116
1117static int snd_intel8x0_playback_open(struct snd_pcm_substream *substream)
1118{
1119	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1120	struct snd_pcm_runtime *runtime = substream->runtime;
1121	int err;
1122
1123	err = snd_intel8x0_pcm_open(substream, &chip->ichd[ICHD_PCMOUT]);
1124	if (err < 0)
1125		return err;
1126
1127	if (chip->multi8) {
1128		runtime->hw.channels_max = 8;
1129		snd_pcm_hw_constraint_list(runtime, 0,
1130						SNDRV_PCM_HW_PARAM_CHANNELS,
1131						&hw_constraints_channels8);
1132	} else if (chip->multi6) {
1133		runtime->hw.channels_max = 6;
1134		snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
1135					   &hw_constraints_channels6);
1136	} else if (chip->multi4) {
1137		runtime->hw.channels_max = 4;
1138		snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
1139					   &hw_constraints_channels4);
1140	}
1141	if (chip->dra) {
1142		snd_ac97_pcm_double_rate_rules(runtime);
1143	}
1144	if (chip->smp20bit) {
1145		runtime->hw.formats |= SNDRV_PCM_FMTBIT_S32_LE;
1146		snd_pcm_hw_constraint_msbits(runtime, 0, 32, 20);
1147	}
1148	return 0;
1149}
1150
1151static int snd_intel8x0_playback_close(struct snd_pcm_substream *substream)
1152{
1153	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1154
1155	chip->ichd[ICHD_PCMOUT].substream = NULL;
1156	return 0;
1157}
1158
1159static int snd_intel8x0_capture_open(struct snd_pcm_substream *substream)
1160{
1161	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1162
1163	return snd_intel8x0_pcm_open(substream, &chip->ichd[ICHD_PCMIN]);
1164}
1165
1166static int snd_intel8x0_capture_close(struct snd_pcm_substream *substream)
1167{
1168	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1169
1170	chip->ichd[ICHD_PCMIN].substream = NULL;
1171	return 0;
1172}
1173
1174static int snd_intel8x0_mic_open(struct snd_pcm_substream *substream)
1175{
1176	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1177
1178	return snd_intel8x0_pcm_open(substream, &chip->ichd[ICHD_MIC]);
1179}
1180
1181static int snd_intel8x0_mic_close(struct snd_pcm_substream *substream)
1182{
1183	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1184
1185	chip->ichd[ICHD_MIC].substream = NULL;
1186	return 0;
1187}
1188
1189static int snd_intel8x0_mic2_open(struct snd_pcm_substream *substream)
1190{
1191	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1192
1193	return snd_intel8x0_pcm_open(substream, &chip->ichd[ICHD_MIC2]);
1194}
1195
1196static int snd_intel8x0_mic2_close(struct snd_pcm_substream *substream)
1197{
1198	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1199
1200	chip->ichd[ICHD_MIC2].substream = NULL;
1201	return 0;
1202}
1203
1204static int snd_intel8x0_capture2_open(struct snd_pcm_substream *substream)
1205{
1206	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1207
1208	return snd_intel8x0_pcm_open(substream, &chip->ichd[ICHD_PCM2IN]);
1209}
1210
1211static int snd_intel8x0_capture2_close(struct snd_pcm_substream *substream)
1212{
1213	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1214
1215	chip->ichd[ICHD_PCM2IN].substream = NULL;
1216	return 0;
1217}
1218
1219static int snd_intel8x0_spdif_open(struct snd_pcm_substream *substream)
1220{
1221	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1222	int idx = chip->device_type == DEVICE_NFORCE ? NVD_SPBAR : ICHD_SPBAR;
1223
1224	return snd_intel8x0_pcm_open(substream, &chip->ichd[idx]);
1225}
1226
1227static int snd_intel8x0_spdif_close(struct snd_pcm_substream *substream)
1228{
1229	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1230	int idx = chip->device_type == DEVICE_NFORCE ? NVD_SPBAR : ICHD_SPBAR;
1231
1232	chip->ichd[idx].substream = NULL;
1233	return 0;
1234}
1235
1236static int snd_intel8x0_ali_ac97spdifout_open(struct snd_pcm_substream *substream)
1237{
1238	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1239	unsigned int val;
1240
1241	spin_lock_irq(&chip->reg_lock);
1242	val = igetdword(chip, ICHREG(ALI_INTERFACECR));
1243	val |= ICH_ALI_IF_AC97SP;
1244	iputdword(chip, ICHREG(ALI_INTERFACECR), val);
1245	/* also needs to set ALI_SC_CODEC_SPDF correctly */
1246	spin_unlock_irq(&chip->reg_lock);
1247
1248	return snd_intel8x0_pcm_open(substream, &chip->ichd[ALID_AC97SPDIFOUT]);
1249}
1250
1251static int snd_intel8x0_ali_ac97spdifout_close(struct snd_pcm_substream *substream)
1252{
1253	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1254	unsigned int val;
1255
1256	chip->ichd[ALID_AC97SPDIFOUT].substream = NULL;
1257	spin_lock_irq(&chip->reg_lock);
1258	val = igetdword(chip, ICHREG(ALI_INTERFACECR));
1259	val &= ~ICH_ALI_IF_AC97SP;
1260	iputdword(chip, ICHREG(ALI_INTERFACECR), val);
1261	spin_unlock_irq(&chip->reg_lock);
1262
1263	return 0;
1264}
1265
1266#if 0 // NYI
1267static int snd_intel8x0_ali_spdifin_open(struct snd_pcm_substream *substream)
1268{
1269	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1270
1271	return snd_intel8x0_pcm_open(substream, &chip->ichd[ALID_SPDIFIN]);
1272}
1273
1274static int snd_intel8x0_ali_spdifin_close(struct snd_pcm_substream *substream)
1275{
1276	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1277
1278	chip->ichd[ALID_SPDIFIN].substream = NULL;
1279	return 0;
1280}
1281
1282static int snd_intel8x0_ali_spdifout_open(struct snd_pcm_substream *substream)
1283{
1284	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1285
1286	return snd_intel8x0_pcm_open(substream, &chip->ichd[ALID_SPDIFOUT]);
1287}
1288
1289static int snd_intel8x0_ali_spdifout_close(struct snd_pcm_substream *substream)
1290{
1291	struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1292
1293	chip->ichd[ALID_SPDIFOUT].substream = NULL;
1294	return 0;
1295}
1296#endif
1297
1298static const struct snd_pcm_ops snd_intel8x0_playback_ops = {
1299	.open =		snd_intel8x0_playback_open,
1300	.close =	snd_intel8x0_playback_close,
1301	.hw_params =	snd_intel8x0_hw_params,
1302	.hw_free =	snd_intel8x0_hw_free,
1303	.prepare =	snd_intel8x0_pcm_prepare,
1304	.trigger =	snd_intel8x0_pcm_trigger,
1305	.pointer =	snd_intel8x0_pcm_pointer,
1306};
1307
1308static const struct snd_pcm_ops snd_intel8x0_capture_ops = {
1309	.open =		snd_intel8x0_capture_open,
1310	.close =	snd_intel8x0_capture_close,
1311	.hw_params =	snd_intel8x0_hw_params,
1312	.hw_free =	snd_intel8x0_hw_free,
1313	.prepare =	snd_intel8x0_pcm_prepare,
1314	.trigger =	snd_intel8x0_pcm_trigger,
1315	.pointer =	snd_intel8x0_pcm_pointer,
1316};
1317
1318static const struct snd_pcm_ops snd_intel8x0_capture_mic_ops = {
1319	.open =		snd_intel8x0_mic_open,
1320	.close =	snd_intel8x0_mic_close,
1321	.hw_params =	snd_intel8x0_hw_params,
1322	.hw_free =	snd_intel8x0_hw_free,
1323	.prepare =	snd_intel8x0_pcm_prepare,
1324	.trigger =	snd_intel8x0_pcm_trigger,
1325	.pointer =	snd_intel8x0_pcm_pointer,
1326};
1327
1328static const struct snd_pcm_ops snd_intel8x0_capture_mic2_ops = {
1329	.open =		snd_intel8x0_mic2_open,
1330	.close =	snd_intel8x0_mic2_close,
1331	.hw_params =	snd_intel8x0_hw_params,
1332	.hw_free =	snd_intel8x0_hw_free,
1333	.prepare =	snd_intel8x0_pcm_prepare,
1334	.trigger =	snd_intel8x0_pcm_trigger,
1335	.pointer =	snd_intel8x0_pcm_pointer,
1336};
1337
1338static const struct snd_pcm_ops snd_intel8x0_capture2_ops = {
1339	.open =		snd_intel8x0_capture2_open,
1340	.close =	snd_intel8x0_capture2_close,
1341	.hw_params =	snd_intel8x0_hw_params,
1342	.hw_free =	snd_intel8x0_hw_free,
1343	.prepare =	snd_intel8x0_pcm_prepare,
1344	.trigger =	snd_intel8x0_pcm_trigger,
1345	.pointer =	snd_intel8x0_pcm_pointer,
1346};
1347
1348static const struct snd_pcm_ops snd_intel8x0_spdif_ops = {
1349	.open =		snd_intel8x0_spdif_open,
1350	.close =	snd_intel8x0_spdif_close,
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 const struct snd_pcm_ops snd_intel8x0_ali_playback_ops = {
1359	.open =		snd_intel8x0_playback_open,
1360	.close =	snd_intel8x0_playback_close,
1361	.hw_params =	snd_intel8x0_hw_params,
1362	.hw_free =	snd_intel8x0_hw_free,
1363	.prepare =	snd_intel8x0_pcm_prepare,
1364	.trigger =	snd_intel8x0_ali_trigger,
1365	.pointer =	snd_intel8x0_pcm_pointer,
1366};
1367
1368static const struct snd_pcm_ops snd_intel8x0_ali_capture_ops = {
1369	.open =		snd_intel8x0_capture_open,
1370	.close =	snd_intel8x0_capture_close,
1371	.hw_params =	snd_intel8x0_hw_params,
1372	.hw_free =	snd_intel8x0_hw_free,
1373	.prepare =	snd_intel8x0_pcm_prepare,
1374	.trigger =	snd_intel8x0_ali_trigger,
1375	.pointer =	snd_intel8x0_pcm_pointer,
1376};
1377
1378static const struct snd_pcm_ops snd_intel8x0_ali_capture_mic_ops = {
1379	.open =		snd_intel8x0_mic_open,
1380	.close =	snd_intel8x0_mic_close,
1381	.hw_params =	snd_intel8x0_hw_params,
1382	.hw_free =	snd_intel8x0_hw_free,
1383	.prepare =	snd_intel8x0_pcm_prepare,
1384	.trigger =	snd_intel8x0_ali_trigger,
1385	.pointer =	snd_intel8x0_pcm_pointer,
1386};
1387
1388static const struct snd_pcm_ops snd_intel8x0_ali_ac97spdifout_ops = {
1389	.open =		snd_intel8x0_ali_ac97spdifout_open,
1390	.close =	snd_intel8x0_ali_ac97spdifout_close,
1391	.hw_params =	snd_intel8x0_hw_params,
1392	.hw_free =	snd_intel8x0_hw_free,
1393	.prepare =	snd_intel8x0_pcm_prepare,
1394	.trigger =	snd_intel8x0_ali_trigger,
1395	.pointer =	snd_intel8x0_pcm_pointer,
1396};
1397
1398#if 0 // NYI
1399static struct snd_pcm_ops snd_intel8x0_ali_spdifin_ops = {
1400	.open =		snd_intel8x0_ali_spdifin_open,
1401	.close =	snd_intel8x0_ali_spdifin_close,
1402	.hw_params =	snd_intel8x0_hw_params,
1403	.hw_free =	snd_intel8x0_hw_free,
1404	.prepare =	snd_intel8x0_pcm_prepare,
1405	.trigger =	snd_intel8x0_pcm_trigger,
1406	.pointer =	snd_intel8x0_pcm_pointer,
1407};
1408
1409static struct snd_pcm_ops snd_intel8x0_ali_spdifout_ops = {
1410	.open =		snd_intel8x0_ali_spdifout_open,
1411	.close =	snd_intel8x0_ali_spdifout_close,
1412	.hw_params =	snd_intel8x0_hw_params,
1413	.hw_free =	snd_intel8x0_hw_free,
1414	.prepare =	snd_intel8x0_pcm_prepare,
1415	.trigger =	snd_intel8x0_pcm_trigger,
1416	.pointer =	snd_intel8x0_pcm_pointer,
1417};
1418#endif // NYI
1419
1420struct ich_pcm_table {
1421	char *suffix;
1422	const struct snd_pcm_ops *playback_ops;
1423	const struct snd_pcm_ops *capture_ops;
1424	size_t prealloc_size;
1425	size_t prealloc_max_size;
1426	int ac97_idx;
1427};
1428
1429#define intel8x0_dma_type(chip) \
1430	((chip)->fix_nocache ? SNDRV_DMA_TYPE_DEV_WC : SNDRV_DMA_TYPE_DEV)
1431
1432static int snd_intel8x0_pcm1(struct intel8x0 *chip, int device,
1433			     const struct ich_pcm_table *rec)
1434{
1435	struct snd_pcm *pcm;
1436	int err;
1437	char name[32];
1438
1439	if (rec->suffix)
1440		sprintf(name, "Intel ICH - %s", rec->suffix);
1441	else
1442		strcpy(name, "Intel ICH");
1443	err = snd_pcm_new(chip->card, name, device,
1444			  rec->playback_ops ? 1 : 0,
1445			  rec->capture_ops ? 1 : 0, &pcm);
1446	if (err < 0)
1447		return err;
1448
1449	if (rec->playback_ops)
1450		snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, rec->playback_ops);
1451	if (rec->capture_ops)
1452		snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, rec->capture_ops);
1453
1454	pcm->private_data = chip;
1455	pcm->info_flags = 0;
1456	if (rec->suffix)
1457		sprintf(pcm->name, "%s - %s", chip->card->shortname, rec->suffix);
1458	else
1459		strcpy(pcm->name, chip->card->shortname);
1460	chip->pcm[device] = pcm;
1461
1462	snd_pcm_set_managed_buffer_all(pcm, intel8x0_dma_type(chip),
1463				       &chip->pci->dev,
1464				       rec->prealloc_size, rec->prealloc_max_size);
1465
1466	if (rec->playback_ops &&
1467	    rec->playback_ops->open == snd_intel8x0_playback_open) {
1468		struct snd_pcm_chmap *chmap;
1469		int chs = 2;
1470		if (chip->multi8)
1471			chs = 8;
1472		else if (chip->multi6)
1473			chs = 6;
1474		else if (chip->multi4)
1475			chs = 4;
1476		err = snd_pcm_add_chmap_ctls(pcm, SNDRV_PCM_STREAM_PLAYBACK,
1477					     snd_pcm_alt_chmaps, chs, 0,
1478					     &chmap);
1479		if (err < 0)
1480			return err;
1481		chmap->channel_mask = SND_PCM_CHMAP_MASK_2468;
1482		chip->ac97[0]->chmaps[SNDRV_PCM_STREAM_PLAYBACK] = chmap;
1483	}
1484
1485	return 0;
1486}
1487
1488static const struct ich_pcm_table intel_pcms[] = {
1489	{
1490		.playback_ops = &snd_intel8x0_playback_ops,
1491		.capture_ops = &snd_intel8x0_capture_ops,
1492		.prealloc_size = 64 * 1024,
1493		.prealloc_max_size = 128 * 1024,
1494	},
1495	{
1496		.suffix = "MIC ADC",
1497		.capture_ops = &snd_intel8x0_capture_mic_ops,
1498		.prealloc_size = 0,
1499		.prealloc_max_size = 128 * 1024,
1500		.ac97_idx = ICHD_MIC,
1501	},
1502	{
1503		.suffix = "MIC2 ADC",
1504		.capture_ops = &snd_intel8x0_capture_mic2_ops,
1505		.prealloc_size = 0,
1506		.prealloc_max_size = 128 * 1024,
1507		.ac97_idx = ICHD_MIC2,
1508	},
1509	{
1510		.suffix = "ADC2",
1511		.capture_ops = &snd_intel8x0_capture2_ops,
1512		.prealloc_size = 0,
1513		.prealloc_max_size = 128 * 1024,
1514		.ac97_idx = ICHD_PCM2IN,
1515	},
1516	{
1517		.suffix = "IEC958",
1518		.playback_ops = &snd_intel8x0_spdif_ops,
1519		.prealloc_size = 64 * 1024,
1520		.prealloc_max_size = 128 * 1024,
1521		.ac97_idx = ICHD_SPBAR,
1522	},
1523};
1524
1525static const struct ich_pcm_table nforce_pcms[] = {
1526	{
1527		.playback_ops = &snd_intel8x0_playback_ops,
1528		.capture_ops = &snd_intel8x0_capture_ops,
1529		.prealloc_size = 64 * 1024,
1530		.prealloc_max_size = 128 * 1024,
1531	},
1532	{
1533		.suffix = "MIC ADC",
1534		.capture_ops = &snd_intel8x0_capture_mic_ops,
1535		.prealloc_size = 0,
1536		.prealloc_max_size = 128 * 1024,
1537		.ac97_idx = NVD_MIC,
1538	},
1539	{
1540		.suffix = "IEC958",
1541		.playback_ops = &snd_intel8x0_spdif_ops,
1542		.prealloc_size = 64 * 1024,
1543		.prealloc_max_size = 128 * 1024,
1544		.ac97_idx = NVD_SPBAR,
1545	},
1546};
1547
1548static const struct ich_pcm_table ali_pcms[] = {
1549	{
1550		.playback_ops = &snd_intel8x0_ali_playback_ops,
1551		.capture_ops = &snd_intel8x0_ali_capture_ops,
1552		.prealloc_size = 64 * 1024,
1553		.prealloc_max_size = 128 * 1024,
1554	},
1555	{
1556		.suffix = "MIC ADC",
1557		.capture_ops = &snd_intel8x0_ali_capture_mic_ops,
1558		.prealloc_size = 0,
1559		.prealloc_max_size = 128 * 1024,
1560		.ac97_idx = ALID_MIC,
1561	},
1562	{
1563		.suffix = "IEC958",
1564		.playback_ops = &snd_intel8x0_ali_ac97spdifout_ops,
1565		/* .capture_ops = &snd_intel8x0_ali_spdifin_ops, */
1566		.prealloc_size = 64 * 1024,
1567		.prealloc_max_size = 128 * 1024,
1568		.ac97_idx = ALID_AC97SPDIFOUT,
1569	},
1570#if 0 // NYI
1571	{
1572		.suffix = "HW IEC958",
1573		.playback_ops = &snd_intel8x0_ali_spdifout_ops,
1574		.prealloc_size = 64 * 1024,
1575		.prealloc_max_size = 128 * 1024,
1576	},
1577#endif
1578};
1579
1580static int snd_intel8x0_pcm(struct intel8x0 *chip)
1581{
1582	int i, tblsize, device, err;
1583	const struct ich_pcm_table *tbl, *rec;
1584
1585	switch (chip->device_type) {
1586	case DEVICE_INTEL_ICH4:
1587		tbl = intel_pcms;
1588		tblsize = ARRAY_SIZE(intel_pcms);
1589		if (spdif_aclink)
1590			tblsize--;
1591		break;
1592	case DEVICE_NFORCE:
1593		tbl = nforce_pcms;
1594		tblsize = ARRAY_SIZE(nforce_pcms);
1595		if (spdif_aclink)
1596			tblsize--;
1597		break;
1598	case DEVICE_ALI:
1599		tbl = ali_pcms;
1600		tblsize = ARRAY_SIZE(ali_pcms);
1601		break;
1602	default:
1603		tbl = intel_pcms;
1604		tblsize = 2;
1605		break;
1606	}
1607
1608	device = 0;
1609	for (i = 0; i < tblsize; i++) {
1610		rec = tbl + i;
1611		if (i > 0 && rec->ac97_idx) {
1612			/* activate PCM only when associated AC'97 codec */
1613			if (! chip->ichd[rec->ac97_idx].pcm)
1614				continue;
1615		}
1616		err = snd_intel8x0_pcm1(chip, device, rec);
1617		if (err < 0)
1618			return err;
1619		device++;
1620	}
1621
1622	chip->pcm_devs = device;
1623	return 0;
1624}
1625
1626
1627/*
1628 *  Mixer part
1629 */
1630
1631static void snd_intel8x0_mixer_free_ac97_bus(struct snd_ac97_bus *bus)
1632{
1633	struct intel8x0 *chip = bus->private_data;
1634	chip->ac97_bus = NULL;
1635}
1636
1637static void snd_intel8x0_mixer_free_ac97(struct snd_ac97 *ac97)
1638{
1639	struct intel8x0 *chip = ac97->private_data;
1640	chip->ac97[ac97->num] = NULL;
1641}
1642
1643static const struct ac97_pcm ac97_pcm_defs[] = {
1644	/* front PCM */
1645	{
1646		.exclusive = 1,
1647		.r = {	{
1648				.slots = (1 << AC97_SLOT_PCM_LEFT) |
1649					 (1 << AC97_SLOT_PCM_RIGHT) |
1650					 (1 << AC97_SLOT_PCM_CENTER) |
1651					 (1 << AC97_SLOT_PCM_SLEFT) |
1652					 (1 << AC97_SLOT_PCM_SRIGHT) |
1653					 (1 << AC97_SLOT_LFE)
1654			},
1655			{
1656				.slots = (1 << AC97_SLOT_PCM_LEFT) |
1657					 (1 << AC97_SLOT_PCM_RIGHT) |
1658					 (1 << AC97_SLOT_PCM_LEFT_0) |
1659					 (1 << AC97_SLOT_PCM_RIGHT_0)
1660			}
1661		}
1662	},
1663	/* PCM IN #1 */
1664	{
1665		.stream = 1,
1666		.exclusive = 1,
1667		.r = {	{
1668				.slots = (1 << AC97_SLOT_PCM_LEFT) |
1669					 (1 << AC97_SLOT_PCM_RIGHT)
1670			}
1671		}
1672	},
1673	/* MIC IN #1 */
1674	{
1675		.stream = 1,
1676		.exclusive = 1,
1677		.r = {	{
1678				.slots = (1 << AC97_SLOT_MIC)
1679			}
1680		}
1681	},
1682	/* S/PDIF PCM */
1683	{
1684		.exclusive = 1,
1685		.spdif = 1,
1686		.r = {	{
1687				.slots = (1 << AC97_SLOT_SPDIF_LEFT2) |
1688					 (1 << AC97_SLOT_SPDIF_RIGHT2)
1689			}
1690		}
1691	},
1692	/* PCM IN #2 */
1693	{
1694		.stream = 1,
1695		.exclusive = 1,
1696		.r = {	{
1697				.slots = (1 << AC97_SLOT_PCM_LEFT) |
1698					 (1 << AC97_SLOT_PCM_RIGHT)
1699			}
1700		}
1701	},
1702	/* MIC IN #2 */
1703	{
1704		.stream = 1,
1705		.exclusive = 1,
1706		.r = {	{
1707				.slots = (1 << AC97_SLOT_MIC)
1708			}
1709		}
1710	},
1711};
1712
1713static const struct ac97_quirk ac97_quirks[] = {
1714        {
1715		.subvendor = 0x0e11,
1716		.subdevice = 0x000e,
1717		.name = "Compaq Deskpro EN",	/* AD1885 */
1718		.type = AC97_TUNE_HP_ONLY
1719        },
1720	{
1721		.subvendor = 0x0e11,
1722		.subdevice = 0x008a,
1723		.name = "Compaq Evo W4000",	/* AD1885 */
1724		.type = AC97_TUNE_HP_ONLY
1725	},
1726	{
1727		.subvendor = 0x0e11,
1728		.subdevice = 0x00b8,
1729		.name = "Compaq Evo D510C",
1730		.type = AC97_TUNE_HP_ONLY
1731	},
1732        {
1733		.subvendor = 0x0e11,
1734		.subdevice = 0x0860,
1735		.name = "HP/Compaq nx7010",
1736		.type = AC97_TUNE_MUTE_LED
1737        },
1738	{
1739		.subvendor = 0x1014,
1740		.subdevice = 0x0534,
1741		.name = "ThinkPad X31",
1742		.type = AC97_TUNE_INV_EAPD
1743	},
1744	{
1745		.subvendor = 0x1014,
1746		.subdevice = 0x1f00,
1747		.name = "MS-9128",
1748		.type = AC97_TUNE_ALC_JACK
1749	},
1750	{
1751		.subvendor = 0x1014,
1752		.subdevice = 0x0267,
1753		.name = "IBM NetVista A30p",	/* AD1981B */
1754		.type = AC97_TUNE_HP_ONLY
1755	},
1756	{
1757		.subvendor = 0x1025,
1758		.subdevice = 0x0082,
1759		.name = "Acer Travelmate 2310",
1760		.type = AC97_TUNE_HP_ONLY
1761	},
1762	{
1763		.subvendor = 0x1025,
1764		.subdevice = 0x0083,
1765		.name = "Acer Aspire 3003LCi",
1766		.type = AC97_TUNE_HP_ONLY
1767	},
1768	{
1769		.subvendor = 0x1028,
1770		.subdevice = 0x00d8,
1771		.name = "Dell Precision 530",	/* AD1885 */
1772		.type = AC97_TUNE_HP_ONLY
1773	},
1774	{
1775		.subvendor = 0x1028,
1776		.subdevice = 0x010d,
1777		.name = "Dell",	/* which model?  AD1885 */
1778		.type = AC97_TUNE_HP_ONLY
1779	},
1780	{
1781		.subvendor = 0x1028,
1782		.subdevice = 0x0126,
1783		.name = "Dell Optiplex GX260",	/* AD1981A */
1784		.type = AC97_TUNE_HP_ONLY
1785	},
1786	{
1787		.subvendor = 0x1028,
1788		.subdevice = 0x012c,
1789		.name = "Dell Precision 650",	/* AD1981A */
1790		.type = AC97_TUNE_HP_ONLY
1791	},
1792	{
1793		.subvendor = 0x1028,
1794		.subdevice = 0x012d,
1795		.name = "Dell Precision 450",	/* AD1981B*/
1796		.type = AC97_TUNE_HP_ONLY
1797	},
1798	{
1799		.subvendor = 0x1028,
1800		.subdevice = 0x0147,
1801		.name = "Dell",	/* which model?  AD1981B*/
1802		.type = AC97_TUNE_HP_ONLY
1803	},
1804	{
1805		.subvendor = 0x1028,
1806		.subdevice = 0x0151,
1807		.name = "Dell Optiplex GX270",  /* AD1981B */
1808		.type = AC97_TUNE_HP_ONLY
1809	},
1810	{
1811		.subvendor = 0x1028,
1812		.subdevice = 0x014e,
1813		.name = "Dell D800", /* STAC9750/51 */
1814		.type = AC97_TUNE_HP_ONLY
1815	},
1816	{
1817		.subvendor = 0x1028,
1818		.subdevice = 0x0163,
1819		.name = "Dell Unknown",	/* STAC9750/51 */
1820		.type = AC97_TUNE_HP_ONLY
1821	},
1822	{
1823		.subvendor = 0x1028,
1824		.subdevice = 0x016a,
1825		.name = "Dell Inspiron 8600",	/* STAC9750/51 */
1826		.type = AC97_TUNE_HP_ONLY
1827	},
1828	{
1829		.subvendor = 0x1028,
1830		.subdevice = 0x0182,
1831		.name = "Dell Latitude D610",	/* STAC9750/51 */
1832		.type = AC97_TUNE_HP_ONLY
1833	},
1834	{
1835		.subvendor = 0x1028,
1836		.subdevice = 0x0186,
1837		.name = "Dell Latitude D810", /* cf. Malone #41015 */
1838		.type = AC97_TUNE_HP_MUTE_LED
1839	},
1840	{
1841		.subvendor = 0x1028,
1842		.subdevice = 0x0188,
1843		.name = "Dell Inspiron 6000",
1844		.type = AC97_TUNE_HP_MUTE_LED /* cf. Malone #41015 */
1845	},
1846	{
1847		.subvendor = 0x1028,
1848		.subdevice = 0x0189,
1849		.name = "Dell Inspiron 9300",
1850		.type = AC97_TUNE_HP_MUTE_LED
1851	},
1852	{
1853		.subvendor = 0x1028,
1854		.subdevice = 0x0191,
1855		.name = "Dell Inspiron 8600",
1856		.type = AC97_TUNE_HP_ONLY
1857	},
1858	{
1859		.subvendor = 0x103c,
1860		.subdevice = 0x006d,
1861		.name = "HP zv5000",
1862		.type = AC97_TUNE_MUTE_LED	/*AD1981B*/
1863	},
1864	{	/* FIXME: which codec? */
1865		.subvendor = 0x103c,
1866		.subdevice = 0x00c3,
1867		.name = "HP xw6000",
1868		.type = AC97_TUNE_HP_ONLY
1869	},
1870	{
1871		.subvendor = 0x103c,
1872		.subdevice = 0x088c,
1873		.name = "HP nc8000",
1874		.type = AC97_TUNE_HP_MUTE_LED
1875	},
1876	{
1877		.subvendor = 0x103c,
1878		.subdevice = 0x0890,
1879		.name = "HP nc6000",
1880		.type = AC97_TUNE_MUTE_LED
1881	},
1882	{
1883		.subvendor = 0x103c,
1884		.subdevice = 0x129d,
1885		.name = "HP xw8000",
1886		.type = AC97_TUNE_HP_ONLY
1887	},
1888	{
1889		.subvendor = 0x103c,
1890		.subdevice = 0x0938,
1891		.name = "HP nc4200",
1892		.type = AC97_TUNE_HP_MUTE_LED
1893	},
1894	{
1895		.subvendor = 0x103c,
1896		.subdevice = 0x099c,
1897		.name = "HP nx6110/nc6120",
1898		.type = AC97_TUNE_HP_MUTE_LED
1899	},
1900	{
1901		.subvendor = 0x103c,
1902		.subdevice = 0x0944,
1903		.name = "HP nc6220",
1904		.type = AC97_TUNE_HP_MUTE_LED
1905	},
1906	{
1907		.subvendor = 0x103c,
1908		.subdevice = 0x0934,
1909		.name = "HP nc8220",
1910		.type = AC97_TUNE_HP_MUTE_LED
1911	},
1912	{
1913		.subvendor = 0x103c,
1914		.subdevice = 0x12f1,
1915		.name = "HP xw8200",	/* AD1981B*/
1916		.type = AC97_TUNE_HP_ONLY
1917	},
1918	{
1919		.subvendor = 0x103c,
1920		.subdevice = 0x12f2,
1921		.name = "HP xw6200",
1922		.type = AC97_TUNE_HP_ONLY
1923	},
1924	{
1925		.subvendor = 0x103c,
1926		.subdevice = 0x3008,
1927		.name = "HP xw4200",	/* AD1981B*/
1928		.type = AC97_TUNE_HP_ONLY
1929	},
1930	{
1931		.subvendor = 0x104d,
1932		.subdevice = 0x8144,
1933		.name = "Sony",
1934		.type = AC97_TUNE_INV_EAPD
1935	},
1936	{
1937		.subvendor = 0x104d,
1938		.subdevice = 0x8197,
1939		.name = "Sony S1XP",
1940		.type = AC97_TUNE_INV_EAPD
1941	},
1942	{
1943		.subvendor = 0x104d,
1944		.subdevice = 0x81c0,
1945		.name = "Sony VAIO VGN-T350P", /*AD1981B*/
1946		.type = AC97_TUNE_INV_EAPD
1947	},
1948	{
1949		.subvendor = 0x104d,
1950		.subdevice = 0x81c5,
1951		.name = "Sony VAIO VGN-B1VP", /*AD1981B*/
1952		.type = AC97_TUNE_INV_EAPD
1953	},
1954 	{
1955		.subvendor = 0x1043,
1956		.subdevice = 0x80f3,
1957		.name = "ASUS ICH5/AD1985",
1958		.type = AC97_TUNE_AD_SHARING
1959	},
1960	{
1961		.subvendor = 0x10cf,
1962		.subdevice = 0x11c3,
1963		.name = "Fujitsu-Siemens E4010",
1964		.type = AC97_TUNE_HP_ONLY
1965	},
1966	{
1967		.subvendor = 0x10cf,
1968		.subdevice = 0x1225,
1969		.name = "Fujitsu-Siemens T3010",
1970		.type = AC97_TUNE_HP_ONLY
1971	},
1972	{
1973		.subvendor = 0x10cf,
1974		.subdevice = 0x1253,
1975		.name = "Fujitsu S6210",	/* STAC9750/51 */
1976		.type = AC97_TUNE_HP_ONLY
1977	},
1978	{
1979		.subvendor = 0x10cf,
1980		.subdevice = 0x127d,
1981		.name = "Fujitsu Lifebook P7010",
1982		.type = AC97_TUNE_HP_ONLY
1983	},
1984	{
1985		.subvendor = 0x10cf,
1986		.subdevice = 0x127e,
1987		.name = "Fujitsu Lifebook C1211D",
1988		.type = AC97_TUNE_HP_ONLY
1989	},
1990	{
1991		.subvendor = 0x10cf,
1992		.subdevice = 0x12ec,
1993		.name = "Fujitsu-Siemens 4010",
1994		.type = AC97_TUNE_HP_ONLY
1995	},
1996	{
1997		.subvendor = 0x10cf,
1998		.subdevice = 0x12f2,
1999		.name = "Fujitsu-Siemens Celsius H320",
2000		.type = AC97_TUNE_SWAP_HP
2001	},
2002	{
2003		.subvendor = 0x10f1,
2004		.subdevice = 0x2665,
2005		.name = "Fujitsu-Siemens Celsius",	/* AD1981? */
2006		.type = AC97_TUNE_HP_ONLY
2007	},
2008	{
2009		.subvendor = 0x10f1,
2010		.subdevice = 0x2885,
2011		.name = "AMD64 Mobo",	/* ALC650 */
2012		.type = AC97_TUNE_HP_ONLY
2013	},
2014	{
2015		.subvendor = 0x10f1,
2016		.subdevice = 0x2895,
2017		.name = "Tyan Thunder K8WE",
2018		.type = AC97_TUNE_HP_ONLY
2019	},
2020	{
2021		.subvendor = 0x10f7,
2022		.subdevice = 0x834c,
2023		.name = "Panasonic CF-R4",
2024		.type = AC97_TUNE_HP_ONLY,
2025	},
2026	{
2027		.subvendor = 0x110a,
2028		.subdevice = 0x0056,
2029		.name = "Fujitsu-Siemens Scenic",	/* AD1981? */
2030		.type = AC97_TUNE_HP_ONLY
2031	},
2032	{
2033		.subvendor = 0x11d4,
2034		.subdevice = 0x5375,
2035		.name = "ADI AD1985 (discrete)",
2036		.type = AC97_TUNE_HP_ONLY
2037	},
2038	{
2039		.subvendor = 0x1462,
2040		.subdevice = 0x5470,
2041		.name = "MSI P4 ATX 645 Ultra",
2042		.type = AC97_TUNE_HP_ONLY
2043	},
2044	{
2045		.subvendor = 0x161f,
2046		.subdevice = 0x202f,
2047		.name = "Gateway M520",
2048		.type = AC97_TUNE_INV_EAPD
2049	},
2050	{
2051		.subvendor = 0x161f,
2052		.subdevice = 0x203a,
2053		.name = "Gateway 4525GZ",		/* AD1981B */
2054		.type = AC97_TUNE_INV_EAPD
2055	},
2056	{
2057		.subvendor = 0x1734,
2058		.subdevice = 0x0088,
2059		.name = "Fujitsu-Siemens D1522",	/* AD1981 */
2060		.type = AC97_TUNE_HP_ONLY
2061	},
2062	{
2063		.subvendor = 0x8086,
2064		.subdevice = 0x2000,
2065		.mask = 0xfff0,
2066		.name = "Intel ICH5/AD1985",
2067		.type = AC97_TUNE_AD_SHARING
2068	},
2069	{
2070		.subvendor = 0x8086,
2071		.subdevice = 0x4000,
2072		.mask = 0xfff0,
2073		.name = "Intel ICH5/AD1985",
2074		.type = AC97_TUNE_AD_SHARING
2075	},
2076	{
2077		.subvendor = 0x8086,
2078		.subdevice = 0x4856,
2079		.name = "Intel D845WN (82801BA)",
2080		.type = AC97_TUNE_SWAP_HP
2081	},
2082	{
2083		.subvendor = 0x8086,
2084		.subdevice = 0x4d44,
2085		.name = "Intel D850EMV2",	/* AD1885 */
2086		.type = AC97_TUNE_HP_ONLY
2087	},
2088	{
2089		.subvendor = 0x8086,
2090		.subdevice = 0x4d56,
2091		.name = "Intel ICH/AD1885",
2092		.type = AC97_TUNE_HP_ONLY
2093	},
2094	{
2095		.subvendor = 0x8086,
2096		.subdevice = 0x6000,
2097		.mask = 0xfff0,
2098		.name = "Intel ICH5/AD1985",
2099		.type = AC97_TUNE_AD_SHARING
2100	},
2101	{
2102		.subvendor = 0x8086,
2103		.subdevice = 0xe000,
2104		.mask = 0xfff0,
2105		.name = "Intel ICH5/AD1985",
2106		.type = AC97_TUNE_AD_SHARING
2107	},
2108#if 0 /* FIXME: this seems wrong on most boards */
2109	{
2110		.subvendor = 0x8086,
2111		.subdevice = 0xa000,
2112		.mask = 0xfff0,
2113		.name = "Intel ICH5/AD1985",
2114		.type = AC97_TUNE_HP_ONLY
2115	},
2116#endif
2117	{ } /* terminator */
2118};
2119
2120static int snd_intel8x0_mixer(struct intel8x0 *chip, int ac97_clock,
2121			      const char *quirk_override)
2122{
2123	struct snd_ac97_bus *pbus;
2124	struct snd_ac97_template ac97;
2125	int err;
2126	unsigned int i, codecs;
2127	unsigned int glob_sta = 0;
2128	const struct snd_ac97_bus_ops *ops;
2129	static const struct snd_ac97_bus_ops standard_bus_ops = {
2130		.write = snd_intel8x0_codec_write,
2131		.read = snd_intel8x0_codec_read,
2132	};
2133	static const struct snd_ac97_bus_ops ali_bus_ops = {
2134		.write = snd_intel8x0_ali_codec_write,
2135		.read = snd_intel8x0_ali_codec_read,
2136	};
2137
2138	chip->spdif_idx = -1; /* use PCMOUT (or disabled) */
2139	if (!spdif_aclink) {
2140		switch (chip->device_type) {
2141		case DEVICE_NFORCE:
2142			chip->spdif_idx = NVD_SPBAR;
2143			break;
2144		case DEVICE_ALI:
2145			chip->spdif_idx = ALID_AC97SPDIFOUT;
2146			break;
2147		case DEVICE_INTEL_ICH4:
2148			chip->spdif_idx = ICHD_SPBAR;
2149			break;
2150		}
2151	}
2152
2153	chip->in_ac97_init = 1;
2154
2155	memset(&ac97, 0, sizeof(ac97));
2156	ac97.private_data = chip;
2157	ac97.private_free = snd_intel8x0_mixer_free_ac97;
2158	ac97.scaps = AC97_SCAP_SKIP_MODEM | AC97_SCAP_POWER_SAVE;
2159	if (chip->xbox)
2160		ac97.scaps |= AC97_SCAP_DETECT_BY_VENDOR;
2161	if (chip->device_type != DEVICE_ALI) {
2162		glob_sta = igetdword(chip, ICHREG(GLOB_STA));
2163		ops = &standard_bus_ops;
2164		chip->in_sdin_init = 1;
2165		codecs = 0;
2166		for (i = 0; i < chip->max_codecs; i++) {
2167			if (! (glob_sta & chip->codec_bit[i]))
2168				continue;
2169			if (chip->device_type == DEVICE_INTEL_ICH4) {
2170				snd_intel8x0_codec_read_test(chip, codecs);
2171				chip->ac97_sdin[codecs] =
2172					igetbyte(chip, ICHREG(SDM)) & ICH_LDI_MASK;
2173				if (snd_BUG_ON(chip->ac97_sdin[codecs] >= 3))
2174					chip->ac97_sdin[codecs] = 0;
2175			} else
2176				chip->ac97_sdin[codecs] = i;
2177			codecs++;
2178		}
2179		chip->in_sdin_init = 0;
2180		if (! codecs)
2181			codecs = 1;
2182	} else {
2183		ops = &ali_bus_ops;
2184		codecs = 1;
2185		/* detect the secondary codec */
2186		for (i = 0; i < 100; i++) {
2187			unsigned int reg = igetdword(chip, ICHREG(ALI_RTSR));
2188			if (reg & 0x40) {
2189				codecs = 2;
2190				break;
2191			}
2192			iputdword(chip, ICHREG(ALI_RTSR), reg | 0x40);
2193			udelay(1);
2194		}
2195	}
2196	err = snd_ac97_bus(chip->card, 0, ops, chip, &pbus);
2197	if (err < 0)
2198		goto __err;
2199	pbus->private_free = snd_intel8x0_mixer_free_ac97_bus;
2200	if (ac97_clock >= 8000 && ac97_clock <= 48000)
2201		pbus->clock = ac97_clock;
2202	/* FIXME: my test board doesn't work well with VRA... */
2203	if (chip->device_type == DEVICE_ALI)
2204		pbus->no_vra = 1;
2205	else
2206		pbus->dra = 1;
2207	chip->ac97_bus = pbus;
2208	chip->ncodecs = codecs;
2209
2210	ac97.pci = chip->pci;
2211	for (i = 0; i < codecs; i++) {
2212		ac97.num = i;
2213		err = snd_ac97_mixer(pbus, &ac97, &chip->ac97[i]);
2214		if (err < 0) {
2215			if (err != -EACCES)
2216				dev_err(chip->card->dev,
2217					"Unable to initialize codec #%d\n", i);
2218			if (i == 0)
2219				goto __err;
2220		}
2221	}
2222	/* tune up the primary codec */
2223	snd_ac97_tune_hardware(chip->ac97[0], ac97_quirks, quirk_override);
2224	/* enable separate SDINs for ICH4 */
2225	if (chip->device_type == DEVICE_INTEL_ICH4)
2226		pbus->isdin = 1;
2227	/* find the available PCM streams */
2228	i = ARRAY_SIZE(ac97_pcm_defs);
2229	if (chip->device_type != DEVICE_INTEL_ICH4)
2230		i -= 2;		/* do not allocate PCM2IN and MIC2 */
2231	if (chip->spdif_idx < 0)
2232		i--;		/* do not allocate S/PDIF */
2233	err = snd_ac97_pcm_assign(pbus, i, ac97_pcm_defs);
2234	if (err < 0)
2235		goto __err;
2236	chip->ichd[ICHD_PCMOUT].pcm = &pbus->pcms[0];
2237	chip->ichd[ICHD_PCMIN].pcm = &pbus->pcms[1];
2238	chip->ichd[ICHD_MIC].pcm = &pbus->pcms[2];
2239	if (chip->spdif_idx >= 0)
2240		chip->ichd[chip->spdif_idx].pcm = &pbus->pcms[3];
2241	if (chip->device_type == DEVICE_INTEL_ICH4) {
2242		chip->ichd[ICHD_PCM2IN].pcm = &pbus->pcms[4];
2243		chip->ichd[ICHD_MIC2].pcm = &pbus->pcms[5];
2244	}
2245	/* enable separate SDINs for ICH4 */
2246	if (chip->device_type == DEVICE_INTEL_ICH4) {
2247		struct ac97_pcm *pcm = chip->ichd[ICHD_PCM2IN].pcm;
2248		u8 tmp = igetbyte(chip, ICHREG(SDM));
2249		tmp &= ~(ICH_DI2L_MASK|ICH_DI1L_MASK);
2250		if (pcm) {
2251			tmp |= ICH_SE;	/* steer enable for multiple SDINs */
2252			tmp |= chip->ac97_sdin[0] << ICH_DI1L_SHIFT;
2253			for (i = 1; i < 4; i++) {
2254				if (pcm->r[0].codec[i]) {
2255					tmp |= chip->ac97_sdin[pcm->r[0].codec[1]->num] << ICH_DI2L_SHIFT;
2256					break;
2257				}
2258			}
2259		} else {
2260			tmp &= ~ICH_SE; /* steer disable */
2261		}
2262		iputbyte(chip, ICHREG(SDM), tmp);
2263	}
2264	if (pbus->pcms[0].r[0].slots & (1 << AC97_SLOT_PCM_SLEFT)) {
2265		chip->multi4 = 1;
2266		if (pbus->pcms[0].r[0].slots & (1 << AC97_SLOT_LFE)) {
2267			chip->multi6 = 1;
2268			if (chip->ac97[0]->flags & AC97_HAS_8CH)
2269				chip->multi8 = 1;
2270		}
2271	}
2272	if (pbus->pcms[0].r[1].rslots[0]) {
2273		chip->dra = 1;
2274	}
2275	if (chip->device_type == DEVICE_INTEL_ICH4) {
2276		if ((igetdword(chip, ICHREG(GLOB_STA)) & ICH_SAMPLE_CAP) == ICH_SAMPLE_16_20)
2277			chip->smp20bit = 1;
2278	}
2279	if (chip->device_type == DEVICE_NFORCE && !spdif_aclink) {
2280		/* 48kHz only */
2281		chip->ichd[chip->spdif_idx].pcm->rates = SNDRV_PCM_RATE_48000;
2282	}
2283	if (chip->device_type == DEVICE_INTEL_ICH4 && !spdif_aclink) {
2284		/* use slot 10/11 for SPDIF */
2285		u32 val;
2286		val = igetdword(chip, ICHREG(GLOB_CNT)) & ~ICH_PCM_SPDIF_MASK;
2287		val |= ICH_PCM_SPDIF_1011;
2288		iputdword(chip, ICHREG(GLOB_CNT), val);
2289		snd_ac97_update_bits(chip->ac97[0], AC97_EXTENDED_STATUS, 0x03 << 4, 0x03 << 4);
2290	}
2291	chip->in_ac97_init = 0;
2292	return 0;
2293
2294 __err:
2295	/* clear the cold-reset bit for the next chance */
2296	if (chip->device_type != DEVICE_ALI)
2297		iputdword(chip, ICHREG(GLOB_CNT),
2298			  igetdword(chip, ICHREG(GLOB_CNT)) & ~ICH_AC97COLD);
2299	return err;
2300}
2301
2302
2303/*
2304 *
2305 */
2306
2307static void do_ali_reset(struct intel8x0 *chip)
2308{
2309	iputdword(chip, ICHREG(ALI_SCR), ICH_ALI_SC_RESET);
2310	iputdword(chip, ICHREG(ALI_FIFOCR1), 0x83838383);
2311	iputdword(chip, ICHREG(ALI_FIFOCR2), 0x83838383);
2312	iputdword(chip, ICHREG(ALI_FIFOCR3), 0x83838383);
2313	iputdword(chip, ICHREG(ALI_INTERFACECR),
2314		  ICH_ALI_IF_PI|ICH_ALI_IF_PO);
2315	iputdword(chip, ICHREG(ALI_INTERRUPTCR), 0x00000000);
2316	iputdword(chip, ICHREG(ALI_INTERRUPTSR), 0x00000000);
2317}
2318
2319#ifdef CONFIG_SND_AC97_POWER_SAVE
2320static const struct snd_pci_quirk ich_chip_reset_mode[] = {
2321	SND_PCI_QUIRK(0x1014, 0x051f, "Thinkpad R32", 1),
2322	{ } /* end */
2323};
2324
2325static int snd_intel8x0_ich_chip_cold_reset(struct intel8x0 *chip)
2326{
2327	unsigned int cnt;
2328	/* ACLink on, 2 channels */
2329
2330	if (snd_pci_quirk_lookup(chip->pci, ich_chip_reset_mode))
2331		return -EIO;
2332
2333	cnt = igetdword(chip, ICHREG(GLOB_CNT));
2334	cnt &= ~(ICH_ACLINK | ICH_PCM_246_MASK);
2335
2336	/* do cold reset - the full ac97 powerdown may leave the controller
2337	 * in a warm state but actually it cannot communicate with the codec.
2338	 */
2339	iputdword(chip, ICHREG(GLOB_CNT), cnt & ~ICH_AC97COLD);
2340	cnt = igetdword(chip, ICHREG(GLOB_CNT));
2341	udelay(10);
2342	iputdword(chip, ICHREG(GLOB_CNT), cnt | ICH_AC97COLD);
2343	msleep(1);
2344	return 0;
2345}
2346#define snd_intel8x0_ich_chip_can_cold_reset(chip) \
2347	(!snd_pci_quirk_lookup(chip->pci, ich_chip_reset_mode))
2348#else
2349#define snd_intel8x0_ich_chip_cold_reset(chip)	0
2350#define snd_intel8x0_ich_chip_can_cold_reset(chip) (0)
2351#endif
2352
2353static int snd_intel8x0_ich_chip_reset(struct intel8x0 *chip)
2354{
2355	unsigned long end_time;
2356	unsigned int cnt;
2357	/* ACLink on, 2 channels */
2358	cnt = igetdword(chip, ICHREG(GLOB_CNT));
2359	cnt &= ~(ICH_ACLINK | ICH_PCM_246_MASK);
2360	/* finish cold or do warm reset */
2361	cnt |= (cnt & ICH_AC97COLD) == 0 ? ICH_AC97COLD : ICH_AC97WARM;
2362	iputdword(chip, ICHREG(GLOB_CNT), cnt);
2363	end_time = (jiffies + (HZ / 4)) + 1;
2364	do {
2365		if ((igetdword(chip, ICHREG(GLOB_CNT)) & ICH_AC97WARM) == 0)
2366			return 0;
2367		schedule_timeout_uninterruptible(1);
2368	} while (time_after_eq(end_time, jiffies));
2369	dev_err(chip->card->dev, "AC'97 warm reset still in progress? [0x%x]\n",
2370		   igetdword(chip, ICHREG(GLOB_CNT)));
2371	return -EIO;
2372}
2373
2374static int snd_intel8x0_ich_chip_init(struct intel8x0 *chip, int probing)
2375{
2376	unsigned long end_time;
2377	unsigned int status, nstatus;
2378	unsigned int cnt;
2379	int err;
2380
2381	/* put logic to right state */
2382	/* first clear status bits */
2383	status = ICH_RCS | ICH_MCINT | ICH_POINT | ICH_PIINT;
2384	if (chip->device_type == DEVICE_NFORCE)
2385		status |= ICH_NVSPINT;
2386	cnt = igetdword(chip, ICHREG(GLOB_STA));
2387	iputdword(chip, ICHREG(GLOB_STA), cnt & status);
2388
2389	if (snd_intel8x0_ich_chip_can_cold_reset(chip))
2390		err = snd_intel8x0_ich_chip_cold_reset(chip);
2391	else
2392		err = snd_intel8x0_ich_chip_reset(chip);
2393	if (err < 0)
2394		return err;
2395
2396	if (probing) {
2397		/* wait for any codec ready status.
2398		 * Once it becomes ready it should remain ready
2399		 * as long as we do not disable the ac97 link.
2400		 */
2401		end_time = jiffies + HZ;
2402		do {
2403			status = igetdword(chip, ICHREG(GLOB_STA)) &
2404				chip->codec_isr_bits;
2405			if (status)
2406				break;
2407			schedule_timeout_uninterruptible(1);
2408		} while (time_after_eq(end_time, jiffies));
2409		if (! status) {
2410			/* no codec is found */
2411			dev_err(chip->card->dev,
2412				"codec_ready: codec is not ready [0x%x]\n",
2413				   igetdword(chip, ICHREG(GLOB_STA)));
2414			return -EIO;
2415		}
2416
2417		/* wait for other codecs ready status. */
2418		end_time = jiffies + HZ / 4;
2419		while (status != chip->codec_isr_bits &&
2420		       time_after_eq(end_time, jiffies)) {
2421			schedule_timeout_uninterruptible(1);
2422			status |= igetdword(chip, ICHREG(GLOB_STA)) &
2423				chip->codec_isr_bits;
2424		}
2425
2426	} else {
2427		/* resume phase */
2428		int i;
2429		status = 0;
2430		for (i = 0; i < chip->ncodecs; i++)
2431			if (chip->ac97[i])
2432				status |= chip->codec_bit[chip->ac97_sdin[i]];
2433		/* wait until all the probed codecs are ready */
2434		end_time = jiffies + HZ;
2435		do {
2436			nstatus = igetdword(chip, ICHREG(GLOB_STA)) &
2437				chip->codec_isr_bits;
2438			if (status == nstatus)
2439				break;
2440			schedule_timeout_uninterruptible(1);
2441		} while (time_after_eq(end_time, jiffies));
2442	}
2443
2444	if (chip->device_type == DEVICE_SIS) {
2445		/* unmute the output on SIS7012 */
2446		iputword(chip, 0x4c, igetword(chip, 0x4c) | 1);
2447	}
2448	if (chip->device_type == DEVICE_NFORCE && !spdif_aclink) {
2449		/* enable SPDIF interrupt */
2450		unsigned int val;
2451		pci_read_config_dword(chip->pci, 0x4c, &val);
2452		val |= 0x1000000;
2453		pci_write_config_dword(chip->pci, 0x4c, val);
2454	}
2455      	return 0;
2456}
2457
2458static int snd_intel8x0_ali_chip_init(struct intel8x0 *chip, int probing)
2459{
2460	u32 reg;
2461	int i = 0;
2462
2463	reg = igetdword(chip, ICHREG(ALI_SCR));
2464	if ((reg & 2) == 0)	/* Cold required */
2465		reg |= 2;
2466	else
2467		reg |= 1;	/* Warm */
2468	reg &= ~0x80000000;	/* ACLink on */
2469	iputdword(chip, ICHREG(ALI_SCR), reg);
2470
2471	for (i = 0; i < HZ / 2; i++) {
2472		if (! (igetdword(chip, ICHREG(ALI_INTERRUPTSR)) & ALI_INT_GPIO))
2473			goto __ok;
2474		schedule_timeout_uninterruptible(1);
2475	}
2476	dev_err(chip->card->dev, "AC'97 reset failed.\n");
2477	if (probing)
2478		return -EIO;
2479
2480 __ok:
2481	for (i = 0; i < HZ / 2; i++) {
2482		reg = igetdword(chip, ICHREG(ALI_RTSR));
2483		if (reg & 0x80) /* primary codec */
2484			break;
2485		iputdword(chip, ICHREG(ALI_RTSR), reg | 0x80);
2486		schedule_timeout_uninterruptible(1);
2487	}
2488
2489	do_ali_reset(chip);
2490	return 0;
2491}
2492
2493static int snd_intel8x0_chip_init(struct intel8x0 *chip, int probing)
2494{
2495	unsigned int i, timeout;
2496	int err;
2497
2498	if (chip->device_type != DEVICE_ALI) {
2499		err = snd_intel8x0_ich_chip_init(chip, probing);
2500		if (err < 0)
2501			return err;
2502		iagetword(chip, 0);	/* clear semaphore flag */
2503	} else {
2504		err = snd_intel8x0_ali_chip_init(chip, probing);
2505		if (err < 0)
2506			return err;
2507	}
2508
2509	/* disable interrupts */
2510	for (i = 0; i < chip->bdbars_count; i++)
2511		iputbyte(chip, ICH_REG_OFF_CR + chip->ichd[i].reg_offset, 0x00);
2512	/* reset channels */
2513	for (i = 0; i < chip->bdbars_count; i++)
2514		iputbyte(chip, ICH_REG_OFF_CR + chip->ichd[i].reg_offset, ICH_RESETREGS);
2515	for (i = 0; i < chip->bdbars_count; i++) {
2516	        timeout = 100000;
2517	        while (--timeout != 0) {
2518        		if ((igetbyte(chip, ICH_REG_OFF_CR + chip->ichd[i].reg_offset) & ICH_RESETREGS) == 0)
2519        		        break;
2520                }
2521                if (timeout == 0)
2522			dev_err(chip->card->dev, "reset of registers failed?\n");
2523        }
2524	/* initialize Buffer Descriptor Lists */
2525	for (i = 0; i < chip->bdbars_count; i++)
2526		iputdword(chip, ICH_REG_OFF_BDBAR + chip->ichd[i].reg_offset,
2527			  chip->ichd[i].bdbar_addr);
2528	return 0;
2529}
2530
2531static void snd_intel8x0_free(struct snd_card *card)
2532{
2533	struct intel8x0 *chip = card->private_data;
2534	unsigned int i;
2535
2536	if (chip->irq < 0)
2537		goto __hw_end;
2538	/* disable interrupts */
2539	for (i = 0; i < chip->bdbars_count; i++)
2540		iputbyte(chip, ICH_REG_OFF_CR + chip->ichd[i].reg_offset, 0x00);
2541	/* reset channels */
2542	for (i = 0; i < chip->bdbars_count; i++)
2543		iputbyte(chip, ICH_REG_OFF_CR + chip->ichd[i].reg_offset, ICH_RESETREGS);
2544	if (chip->device_type == DEVICE_NFORCE && !spdif_aclink) {
2545		/* stop the spdif interrupt */
2546		unsigned int val;
2547		pci_read_config_dword(chip->pci, 0x4c, &val);
2548		val &= ~0x1000000;
2549		pci_write_config_dword(chip->pci, 0x4c, val);
2550	}
2551	/* --- */
2552
2553      __hw_end:
2554	if (chip->irq >= 0)
2555		free_irq(chip->irq, chip);
2556}
2557
2558/*
2559 * power management
2560 */
2561static int intel8x0_suspend(struct device *dev)
2562{
2563	struct snd_card *card = dev_get_drvdata(dev);
2564	struct intel8x0 *chip = card->private_data;
2565	int i;
2566
2567	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
2568	for (i = 0; i < chip->ncodecs; i++)
2569		snd_ac97_suspend(chip->ac97[i]);
2570	if (chip->device_type == DEVICE_INTEL_ICH4)
2571		chip->sdm_saved = igetbyte(chip, ICHREG(SDM));
2572
2573	if (chip->irq >= 0) {
2574		free_irq(chip->irq, chip);
2575		chip->irq = -1;
2576		card->sync_irq = -1;
2577	}
2578	return 0;
2579}
2580
2581static int intel8x0_resume(struct device *dev)
2582{
2583	struct pci_dev *pci = to_pci_dev(dev);
2584	struct snd_card *card = dev_get_drvdata(dev);
2585	struct intel8x0 *chip = card->private_data;
2586	int i;
2587
2588	snd_intel8x0_chip_init(chip, 0);
2589	if (request_irq(pci->irq, snd_intel8x0_interrupt,
2590			IRQF_SHARED, KBUILD_MODNAME, chip)) {
2591		dev_err(dev, "unable to grab IRQ %d, disabling device\n",
2592			pci->irq);
2593		snd_card_disconnect(card);
2594		return -EIO;
2595	}
2596	chip->irq = pci->irq;
2597	card->sync_irq = chip->irq;
2598
2599	/* re-initialize mixer stuff */
2600	if (chip->device_type == DEVICE_INTEL_ICH4 && !spdif_aclink) {
2601		/* enable separate SDINs for ICH4 */
2602		iputbyte(chip, ICHREG(SDM), chip->sdm_saved);
2603		/* use slot 10/11 for SPDIF */
2604		iputdword(chip, ICHREG(GLOB_CNT),
2605			  (igetdword(chip, ICHREG(GLOB_CNT)) & ~ICH_PCM_SPDIF_MASK) |
2606			  ICH_PCM_SPDIF_1011);
2607	}
2608
2609	for (i = 0; i < chip->ncodecs; i++)
2610		snd_ac97_resume(chip->ac97[i]);
2611
2612	/* resume status */
2613	for (i = 0; i < chip->bdbars_count; i++) {
2614		struct ichdev *ichdev = &chip->ichd[i];
2615		unsigned long port = ichdev->reg_offset;
2616		if (! ichdev->substream || ! ichdev->suspended)
2617			continue;
2618		if (ichdev->ichd == ICHD_PCMOUT)
2619			snd_intel8x0_setup_pcm_out(chip, ichdev->substream->runtime);
2620		iputdword(chip, port + ICH_REG_OFF_BDBAR, ichdev->bdbar_addr);
2621		iputbyte(chip, port + ICH_REG_OFF_LVI, ichdev->lvi);
2622		iputbyte(chip, port + ICH_REG_OFF_CIV, ichdev->civ);
2623		iputbyte(chip, port + ichdev->roff_sr, ICH_FIFOE | ICH_BCIS | ICH_LVBCI);
2624	}
2625
2626	snd_power_change_state(card, SNDRV_CTL_POWER_D0);
2627	return 0;
2628}
2629
2630static DEFINE_SIMPLE_DEV_PM_OPS(intel8x0_pm, intel8x0_suspend, intel8x0_resume);
2631
2632#define INTEL8X0_TESTBUF_SIZE	32768	/* enough large for one shot */
2633
2634static void intel8x0_measure_ac97_clock(struct intel8x0 *chip)
2635{
2636	struct snd_pcm_substream *subs;
2637	struct ichdev *ichdev;
2638	unsigned long port;
2639	unsigned long pos, pos1, t;
2640	int civ, timeout = 1000, attempt = 1;
2641	ktime_t start_time, stop_time;
2642
2643	if (chip->ac97_bus->clock != 48000)
2644		return; /* specified in module option */
2645	if (chip->inside_vm && !ac97_clock)
2646		return; /* no measurement on VM */
2647
2648      __again:
2649	subs = chip->pcm[0]->streams[0].substream;
2650	if (! subs || subs->dma_buffer.bytes < INTEL8X0_TESTBUF_SIZE) {
2651		dev_warn(chip->card->dev,
2652			 "no playback buffer allocated - aborting measure ac97 clock\n");
2653		return;
2654	}
2655	ichdev = &chip->ichd[ICHD_PCMOUT];
2656	ichdev->physbuf = subs->dma_buffer.addr;
2657	ichdev->size = ichdev->fragsize = INTEL8X0_TESTBUF_SIZE;
2658	ichdev->substream = NULL; /* don't process interrupts */
2659
2660	/* set rate */
2661	if (snd_ac97_set_rate(chip->ac97[0], AC97_PCM_FRONT_DAC_RATE, 48000) < 0) {
2662		dev_err(chip->card->dev, "cannot set ac97 rate: clock = %d\n",
2663			chip->ac97_bus->clock);
2664		return;
2665	}
2666	snd_intel8x0_setup_periods(chip, ichdev);
2667	port = ichdev->reg_offset;
2668	spin_lock_irq(&chip->reg_lock);
2669	chip->in_measurement = 1;
2670	/* trigger */
2671	if (chip->device_type != DEVICE_ALI)
2672		iputbyte(chip, port + ICH_REG_OFF_CR, ICH_IOCE | ICH_STARTBM);
2673	else {
2674		iputbyte(chip, port + ICH_REG_OFF_CR, ICH_IOCE);
2675		iputdword(chip, ICHREG(ALI_DMACR), 1 << ichdev->ali_slot);
2676	}
2677	start_time = ktime_get();
2678	spin_unlock_irq(&chip->reg_lock);
2679	msleep(50);
2680	spin_lock_irq(&chip->reg_lock);
2681	/* check the position */
2682	do {
2683		civ = igetbyte(chip, ichdev->reg_offset + ICH_REG_OFF_CIV);
2684		pos1 = igetword(chip, ichdev->reg_offset + ichdev->roff_picb);
2685		if (pos1 == 0) {
2686			udelay(10);
2687			continue;
2688		}
2689		if (civ == igetbyte(chip, ichdev->reg_offset + ICH_REG_OFF_CIV) &&
2690		    pos1 == igetword(chip, ichdev->reg_offset + ichdev->roff_picb))
2691			break;
2692	} while (timeout--);
2693	if (pos1 == 0) {	/* oops, this value is not reliable */
2694		pos = 0;
2695	} else {
2696		pos = ichdev->fragsize1;
2697		pos -= pos1 << ichdev->pos_shift;
2698		pos += ichdev->position;
2699	}
2700	chip->in_measurement = 0;
2701	stop_time = ktime_get();
2702	/* stop */
2703	if (chip->device_type == DEVICE_ALI) {
2704		iputdword(chip, ICHREG(ALI_DMACR), 1 << (ichdev->ali_slot + 16));
2705		iputbyte(chip, port + ICH_REG_OFF_CR, 0);
2706		while (igetbyte(chip, port + ICH_REG_OFF_CR))
2707			;
2708	} else {
2709		iputbyte(chip, port + ICH_REG_OFF_CR, 0);
2710		while (!(igetbyte(chip, port + ichdev->roff_sr) & ICH_DCH))
2711			;
2712	}
2713	iputbyte(chip, port + ICH_REG_OFF_CR, ICH_RESETREGS);
2714	spin_unlock_irq(&chip->reg_lock);
2715
2716	if (pos == 0) {
2717		dev_err(chip->card->dev,
2718			"measure - unreliable DMA position..\n");
2719	      __retry:
2720		if (attempt < 3) {
2721			msleep(300);
2722			attempt++;
2723			goto __again;
2724		}
2725		goto __end;
2726	}
2727
2728	pos /= 4;
2729	t = ktime_us_delta(stop_time, start_time);
2730	dev_info(chip->card->dev,
2731		 "%s: measured %lu usecs (%lu samples)\n", __func__, t, pos);
2732	if (t == 0) {
2733		dev_err(chip->card->dev, "?? calculation error..\n");
2734		goto __retry;
2735	}
2736	pos *= 1000;
2737	pos = (pos / t) * 1000 + ((pos % t) * 1000) / t;
2738	if (pos < 40000 || pos >= 60000) {
2739		/* abnormal value. hw problem? */
2740		dev_info(chip->card->dev, "measured clock %ld rejected\n", pos);
2741		goto __retry;
2742	} else if (pos > 40500 && pos < 41500)
2743		/* first exception - 41000Hz reference clock */
2744		chip->ac97_bus->clock = 41000;
2745	else if (pos > 43600 && pos < 44600)
2746		/* second exception - 44100HZ reference clock */
2747		chip->ac97_bus->clock = 44100;
2748	else if (pos < 47500 || pos > 48500)
2749		/* not 48000Hz, tuning the clock.. */
2750		chip->ac97_bus->clock = (chip->ac97_bus->clock * 48000) / pos;
2751      __end:
2752	dev_info(chip->card->dev, "clocking to %d\n", chip->ac97_bus->clock);
2753	snd_ac97_update_power(chip->ac97[0], AC97_PCM_FRONT_DAC_RATE, 0);
2754}
2755
2756static const struct snd_pci_quirk intel8x0_clock_list[] = {
2757	SND_PCI_QUIRK(0x0e11, 0x008a, "AD1885", 41000),
2758	SND_PCI_QUIRK(0x1014, 0x0581, "AD1981B", 48000),
2759	SND_PCI_QUIRK(0x1028, 0x00be, "AD1885", 44100),
2760	SND_PCI_QUIRK(0x1028, 0x0177, "AD1980", 48000),
2761	SND_PCI_QUIRK(0x1028, 0x01ad, "AD1981B", 48000),
2762	SND_PCI_QUIRK(0x1043, 0x80f3, "AD1985", 48000),
2763	{ }	/* terminator */
2764};
2765
2766static int intel8x0_in_clock_list(struct intel8x0 *chip)
2767{
2768	struct pci_dev *pci = chip->pci;
2769	const struct snd_pci_quirk *wl;
2770
2771	wl = snd_pci_quirk_lookup(pci, intel8x0_clock_list);
2772	if (!wl)
2773		return 0;
2774	dev_info(chip->card->dev, "allow list rate for %04x:%04x is %i\n",
2775	       pci->subsystem_vendor, pci->subsystem_device, wl->value);
2776	chip->ac97_bus->clock = wl->value;
2777	return 1;
2778}
2779
2780static void snd_intel8x0_proc_read(struct snd_info_entry * entry,
2781				   struct snd_info_buffer *buffer)
2782{
2783	struct intel8x0 *chip = entry->private_data;
2784	unsigned int tmp;
2785
2786	snd_iprintf(buffer, "Intel8x0\n\n");
2787	if (chip->device_type == DEVICE_ALI)
2788		return;
2789	tmp = igetdword(chip, ICHREG(GLOB_STA));
2790	snd_iprintf(buffer, "Global control        : 0x%08x\n", igetdword(chip, ICHREG(GLOB_CNT)));
2791	snd_iprintf(buffer, "Global status         : 0x%08x\n", tmp);
2792	if (chip->device_type == DEVICE_INTEL_ICH4)
2793		snd_iprintf(buffer, "SDM                   : 0x%08x\n", igetdword(chip, ICHREG(SDM)));
2794	snd_iprintf(buffer, "AC'97 codecs ready    :");
2795	if (tmp & chip->codec_isr_bits) {
2796		int i;
2797		static const char *codecs[3] = {
2798			"primary", "secondary", "tertiary"
2799		};
2800		for (i = 0; i < chip->max_codecs; i++)
2801			if (tmp & chip->codec_bit[i])
2802				snd_iprintf(buffer, " %s", codecs[i]);
2803	} else
2804		snd_iprintf(buffer, " none");
2805	snd_iprintf(buffer, "\n");
2806	if (chip->device_type == DEVICE_INTEL_ICH4 ||
2807	    chip->device_type == DEVICE_SIS)
2808		snd_iprintf(buffer, "AC'97 codecs SDIN     : %i %i %i\n",
2809			chip->ac97_sdin[0],
2810			chip->ac97_sdin[1],
2811			chip->ac97_sdin[2]);
2812}
2813
2814static void snd_intel8x0_proc_init(struct intel8x0 *chip)
2815{
2816	snd_card_ro_proc_new(chip->card, "intel8x0", chip,
2817			     snd_intel8x0_proc_read);
2818}
2819
2820struct ich_reg_info {
2821	unsigned int int_sta_mask;
2822	unsigned int offset;
2823};
2824
2825static const unsigned int ich_codec_bits[3] = {
2826	ICH_PCR, ICH_SCR, ICH_TCR
2827};
2828static const unsigned int sis_codec_bits[3] = {
2829	ICH_PCR, ICH_SCR, ICH_SIS_TCR
2830};
2831
2832static int snd_intel8x0_inside_vm(struct pci_dev *pci)
2833{
2834	int result  = inside_vm;
2835	char *msg   = NULL;
2836
2837	/* check module parameter first (override detection) */
2838	if (result >= 0) {
2839		msg = result ? "enable (forced) VM" : "disable (forced) VM";
2840		goto fini;
2841	}
2842
2843	/* check for known (emulated) devices */
2844	result = 0;
2845	if (pci->subsystem_vendor == PCI_SUBVENDOR_ID_REDHAT_QUMRANET &&
2846	    pci->subsystem_device == PCI_SUBDEVICE_ID_QEMU) {
2847		/* KVM emulated sound, PCI SSID: 1af4:1100 */
2848		msg = "enable KVM";
2849		result = 1;
2850	} else if (pci->subsystem_vendor == 0x1ab8) {
2851		/* Parallels VM emulated sound, PCI SSID: 1ab8:xxxx */
2852		msg = "enable Parallels VM";
2853		result = 1;
2854	}
2855
2856fini:
2857	if (msg != NULL)
2858		dev_info(&pci->dev, "%s optimization\n", msg);
2859
2860	return result;
2861}
2862
2863static int snd_intel8x0_init(struct snd_card *card,
2864			     struct pci_dev *pci,
2865			     unsigned long device_type)
2866{
2867	struct intel8x0 *chip = card->private_data;
2868	int err;
2869	unsigned int i;
2870	unsigned int int_sta_masks;
2871	struct ichdev *ichdev;
2872
2873	static const unsigned int bdbars[] = {
2874		3, /* DEVICE_INTEL */
2875		6, /* DEVICE_INTEL_ICH4 */
2876		3, /* DEVICE_SIS */
2877		6, /* DEVICE_ALI */
2878		4, /* DEVICE_NFORCE */
2879	};
2880	static const struct ich_reg_info intel_regs[6] = {
2881		{ ICH_PIINT, 0 },
2882		{ ICH_POINT, 0x10 },
2883		{ ICH_MCINT, 0x20 },
2884		{ ICH_M2INT, 0x40 },
2885		{ ICH_P2INT, 0x50 },
2886		{ ICH_SPINT, 0x60 },
2887	};
2888	static const struct ich_reg_info nforce_regs[4] = {
2889		{ ICH_PIINT, 0 },
2890		{ ICH_POINT, 0x10 },
2891		{ ICH_MCINT, 0x20 },
2892		{ ICH_NVSPINT, 0x70 },
2893	};
2894	static const struct ich_reg_info ali_regs[6] = {
2895		{ ALI_INT_PCMIN, 0x40 },
2896		{ ALI_INT_PCMOUT, 0x50 },
2897		{ ALI_INT_MICIN, 0x60 },
2898		{ ALI_INT_CODECSPDIFOUT, 0x70 },
2899		{ ALI_INT_SPDIFIN, 0xa0 },
2900		{ ALI_INT_SPDIFOUT, 0xb0 },
2901	};
2902	const struct ich_reg_info *tbl;
2903
2904	err = pcim_enable_device(pci);
2905	if (err < 0)
2906		return err;
2907
2908	spin_lock_init(&chip->reg_lock);
2909	chip->device_type = device_type;
2910	chip->card = card;
2911	chip->pci = pci;
2912	chip->irq = -1;
2913
2914	/* module parameters */
2915	chip->buggy_irq = buggy_irq;
2916	chip->buggy_semaphore = buggy_semaphore;
2917	if (xbox)
2918		chip->xbox = 1;
2919
2920	chip->inside_vm = snd_intel8x0_inside_vm(pci);
2921
2922	/*
2923	 * Intel 82443MX running a 100MHz processor system bus has a hardware
2924	 * bug, which aborts PCI busmaster for audio transfer.  A workaround
2925	 * is to set the pages as non-cached.  For details, see the errata in
2926	 *     http://download.intel.com/design/chipsets/specupdt/24505108.pdf
2927	 */
2928	if (pci->vendor == PCI_VENDOR_ID_INTEL &&
2929	    pci->device == PCI_DEVICE_ID_INTEL_440MX)
2930		chip->fix_nocache = 1; /* enable workaround */
2931
2932	err = pci_request_regions(pci, card->shortname);
2933	if (err < 0)
2934		return err;
2935
2936	if (device_type == DEVICE_ALI) {
2937		/* ALI5455 has no ac97 region */
2938		chip->bmaddr = pcim_iomap(pci, 0, 0);
2939	} else {
2940		if (pci_resource_flags(pci, 2) & IORESOURCE_MEM) /* ICH4 and Nforce */
2941			chip->addr = pcim_iomap(pci, 2, 0);
2942		else
2943			chip->addr = pcim_iomap(pci, 0, 0);
2944		if (pci_resource_flags(pci, 3) & IORESOURCE_MEM) /* ICH4 */
2945			chip->bmaddr = pcim_iomap(pci, 3, 0);
2946		else
2947			chip->bmaddr = pcim_iomap(pci, 1, 0);
2948	}
2949
2950	chip->bdbars_count = bdbars[device_type];
2951
2952	/* initialize offsets */
2953	switch (device_type) {
2954	case DEVICE_NFORCE:
2955		tbl = nforce_regs;
2956		break;
2957	case DEVICE_ALI:
2958		tbl = ali_regs;
2959		break;
2960	default:
2961		tbl = intel_regs;
2962		break;
2963	}
2964	for (i = 0; i < chip->bdbars_count; i++) {
2965		ichdev = &chip->ichd[i];
2966		ichdev->ichd = i;
2967		ichdev->reg_offset = tbl[i].offset;
2968		ichdev->int_sta_mask = tbl[i].int_sta_mask;
2969		if (device_type == DEVICE_SIS) {
2970			/* SiS 7012 swaps the registers */
2971			ichdev->roff_sr = ICH_REG_OFF_PICB;
2972			ichdev->roff_picb = ICH_REG_OFF_SR;
2973		} else {
2974			ichdev->roff_sr = ICH_REG_OFF_SR;
2975			ichdev->roff_picb = ICH_REG_OFF_PICB;
2976		}
2977		if (device_type == DEVICE_ALI)
2978			ichdev->ali_slot = (ichdev->reg_offset - 0x40) / 0x10;
2979		/* SIS7012 handles the pcm data in bytes, others are in samples */
2980		ichdev->pos_shift = (device_type == DEVICE_SIS) ? 0 : 1;
2981	}
2982
2983	/* allocate buffer descriptor lists */
2984	/* the start of each lists must be aligned to 8 bytes */
2985	chip->bdbars = snd_devm_alloc_pages(&pci->dev, intel8x0_dma_type(chip),
2986					    chip->bdbars_count * sizeof(u32) *
2987					    ICH_MAX_FRAGS * 2);
2988	if (!chip->bdbars)
2989		return -ENOMEM;
2990
2991	/* tables must be aligned to 8 bytes here, but the kernel pages
2992	   are much bigger, so we don't care (on i386) */
2993	int_sta_masks = 0;
2994	for (i = 0; i < chip->bdbars_count; i++) {
2995		ichdev = &chip->ichd[i];
2996		ichdev->bdbar = ((__le32 *)chip->bdbars->area) +
2997			(i * ICH_MAX_FRAGS * 2);
2998		ichdev->bdbar_addr = chip->bdbars->addr +
2999			(i * sizeof(u32) * ICH_MAX_FRAGS * 2);
3000		int_sta_masks |= ichdev->int_sta_mask;
3001	}
3002	chip->int_sta_reg = device_type == DEVICE_ALI ?
3003		ICH_REG_ALI_INTERRUPTSR : ICH_REG_GLOB_STA;
3004	chip->int_sta_mask = int_sta_masks;
3005
3006	pci_set_master(pci);
3007
3008	switch(chip->device_type) {
3009	case DEVICE_INTEL_ICH4:
3010		/* ICH4 can have three codecs */
3011		chip->max_codecs = 3;
3012		chip->codec_bit = ich_codec_bits;
3013		chip->codec_ready_bits = ICH_PRI | ICH_SRI | ICH_TRI;
3014		break;
3015	case DEVICE_SIS:
3016		/* recent SIS7012 can have three codecs */
3017		chip->max_codecs = 3;
3018		chip->codec_bit = sis_codec_bits;
3019		chip->codec_ready_bits = ICH_PRI | ICH_SRI | ICH_SIS_TRI;
3020		break;
3021	default:
3022		/* others up to two codecs */
3023		chip->max_codecs = 2;
3024		chip->codec_bit = ich_codec_bits;
3025		chip->codec_ready_bits = ICH_PRI | ICH_SRI;
3026		break;
3027	}
3028	for (i = 0; i < chip->max_codecs; i++)
3029		chip->codec_isr_bits |= chip->codec_bit[i];
3030
3031	err = snd_intel8x0_chip_init(chip, 1);
3032	if (err < 0)
3033		return err;
3034
3035	/* request irq after initializaing int_sta_mask, etc */
3036	/* NOTE: we don't use devm version here since it's released /
3037	 * re-acquired in PM callbacks.
3038	 * It's released explicitly in snd_intel8x0_free(), too.
3039	 */
3040	if (request_irq(pci->irq, snd_intel8x0_interrupt,
3041			IRQF_SHARED, KBUILD_MODNAME, chip)) {
3042		dev_err(card->dev, "unable to grab IRQ %d\n", pci->irq);
3043		return -EBUSY;
3044	}
3045	chip->irq = pci->irq;
3046	card->sync_irq = chip->irq;
3047
3048	card->private_free = snd_intel8x0_free;
3049
3050	return 0;
3051}
3052
3053static struct shortname_table {
3054	unsigned int id;
3055	const char *s;
3056} shortnames[] = {
3057	{ PCI_DEVICE_ID_INTEL_82801AA_5, "Intel 82801AA-ICH" },
3058	{ PCI_DEVICE_ID_INTEL_82801AB_5, "Intel 82901AB-ICH0" },
3059	{ PCI_DEVICE_ID_INTEL_82801BA_4, "Intel 82801BA-ICH2" },
3060	{ PCI_DEVICE_ID_INTEL_440MX, "Intel 440MX" },
3061	{ PCI_DEVICE_ID_INTEL_82801CA_5, "Intel 82801CA-ICH3" },
3062	{ PCI_DEVICE_ID_INTEL_82801DB_5, "Intel 82801DB-ICH4" },
3063	{ PCI_DEVICE_ID_INTEL_82801EB_5, "Intel ICH5" },
3064	{ PCI_DEVICE_ID_INTEL_ESB_5, "Intel 6300ESB" },
3065	{ PCI_DEVICE_ID_INTEL_ICH6_18, "Intel ICH6" },
3066	{ PCI_DEVICE_ID_INTEL_ICH7_20, "Intel ICH7" },
3067	{ PCI_DEVICE_ID_INTEL_ESB2_14, "Intel ESB2" },
3068	{ PCI_DEVICE_ID_SI_7012, "SiS SI7012" },
3069	{ PCI_DEVICE_ID_NVIDIA_MCP1_AUDIO, "NVidia nForce" },
3070	{ PCI_DEVICE_ID_NVIDIA_MCP2_AUDIO, "NVidia nForce2" },
3071	{ PCI_DEVICE_ID_NVIDIA_MCP3_AUDIO, "NVidia nForce3" },
3072	{ PCI_DEVICE_ID_NVIDIA_CK8S_AUDIO, "NVidia CK8S" },
3073	{ PCI_DEVICE_ID_NVIDIA_CK804_AUDIO, "NVidia CK804" },
3074	{ PCI_DEVICE_ID_NVIDIA_CK8_AUDIO, "NVidia CK8" },
3075	{ 0x003a, "NVidia MCP04" },
3076	{ 0x746d, "AMD AMD8111" },
3077	{ 0x7445, "AMD AMD768" },
3078	{ 0x5455, "ALi M5455" },
3079	{ 0, NULL },
3080};
3081
3082static const struct snd_pci_quirk spdif_aclink_defaults[] = {
3083	SND_PCI_QUIRK(0x147b, 0x1c1a, "ASUS KN8", 1),
3084	{ } /* end */
3085};
3086
3087/* look up allow/deny list for SPDIF over ac-link */
3088static int check_default_spdif_aclink(struct pci_dev *pci)
3089{
3090	const struct snd_pci_quirk *w;
3091
3092	w = snd_pci_quirk_lookup(pci, spdif_aclink_defaults);
3093	if (w) {
3094		if (w->value)
3095			dev_dbg(&pci->dev,
3096				"Using SPDIF over AC-Link for %s\n",
3097				    snd_pci_quirk_name(w));
3098		else
3099			dev_dbg(&pci->dev,
3100				"Using integrated SPDIF DMA for %s\n",
3101				    snd_pci_quirk_name(w));
3102		return w->value;
3103	}
3104	return 0;
3105}
3106
3107static int __snd_intel8x0_probe(struct pci_dev *pci,
3108				const struct pci_device_id *pci_id)
3109{
3110	struct snd_card *card;
3111	struct intel8x0 *chip;
3112	int err;
3113	struct shortname_table *name;
3114
3115	err = snd_devm_card_new(&pci->dev, index, id, THIS_MODULE,
3116				sizeof(*chip), &card);
3117	if (err < 0)
3118		return err;
3119	chip = card->private_data;
3120
3121	if (spdif_aclink < 0)
3122		spdif_aclink = check_default_spdif_aclink(pci);
3123
3124	strcpy(card->driver, "ICH");
3125	if (!spdif_aclink) {
3126		switch (pci_id->driver_data) {
3127		case DEVICE_NFORCE:
3128			strcpy(card->driver, "NFORCE");
3129			break;
3130		case DEVICE_INTEL_ICH4:
3131			strcpy(card->driver, "ICH4");
3132		}
3133	}
3134
3135	strcpy(card->shortname, "Intel ICH");
3136	for (name = shortnames; name->id; name++) {
3137		if (pci->device == name->id) {
3138			strcpy(card->shortname, name->s);
3139			break;
3140		}
3141	}
3142
3143	if (buggy_irq < 0) {
3144		/* some Nforce[2] and ICH boards have problems with IRQ handling.
3145		 * Needs to return IRQ_HANDLED for unknown irqs.
3146		 */
3147		if (pci_id->driver_data == DEVICE_NFORCE)
3148			buggy_irq = 1;
3149		else
3150			buggy_irq = 0;
3151	}
3152
3153	err = snd_intel8x0_init(card, pci, pci_id->driver_data);
3154	if (err < 0)
3155		return err;
3156
3157	err = snd_intel8x0_mixer(chip, ac97_clock, ac97_quirk);
3158	if (err < 0)
3159		return err;
3160	err = snd_intel8x0_pcm(chip);
3161	if (err < 0)
3162		return err;
3163
3164	snd_intel8x0_proc_init(chip);
3165
3166	snprintf(card->longname, sizeof(card->longname),
3167		 "%s with %s at irq %i", card->shortname,
3168		 snd_ac97_get_short_name(chip->ac97[0]), chip->irq);
3169
3170	if (ac97_clock == 0 || ac97_clock == 1) {
3171		if (ac97_clock == 0) {
3172			if (intel8x0_in_clock_list(chip) == 0)
3173				intel8x0_measure_ac97_clock(chip);
3174		} else {
3175			intel8x0_measure_ac97_clock(chip);
3176		}
3177	}
3178
3179	err = snd_card_register(card);
3180	if (err < 0)
3181		return err;
3182
3183	pci_set_drvdata(pci, card);
3184	return 0;
3185}
3186
3187static int snd_intel8x0_probe(struct pci_dev *pci,
3188			      const struct pci_device_id *pci_id)
3189{
3190	return snd_card_free_on_error(&pci->dev, __snd_intel8x0_probe(pci, pci_id));
3191}
3192
3193static struct pci_driver intel8x0_driver = {
3194	.name = KBUILD_MODNAME,
3195	.id_table = snd_intel8x0_ids,
3196	.probe = snd_intel8x0_probe,
3197	.driver = {
3198		.pm = &intel8x0_pm,
3199	},
3200};
3201
3202module_pci_driver(intel8x0_driver);
3203