xref: /linux/sound/pci/intel8x0.c (revision d67b569f5f620c0fb95d5212642746b7ba9d29e4)
1 /*
2  *   ALSA driver for Intel ICH (i8x0) chipsets
3  *
4  *	Copyright (c) 2000 Jaroslav Kysela <perex@suse.cz>
5  *
6  *
7  *   This code also contains alpha support for SiS 735 chipsets provided
8  *   by Mike Pieper <mptei@users.sourceforge.net>. We have no datasheet
9  *   for SiS735, so the code is not fully functional.
10  *
11  *
12  *   This program is free software; you can redistribute it and/or modify
13  *   it under the terms of the GNU General Public License as published by
14  *   the Free Software Foundation; either version 2 of the License, or
15  *   (at your option) any later version.
16  *
17  *   This program is distributed in the hope that it will be useful,
18  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
19  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
20  *   GNU General Public License for more details.
21  *
22  *   You should have received a copy of the GNU General Public License
23  *   along with this program; if not, write to the Free Software
24  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
25 
26  *
27  */
28 
29 #include <sound/driver.h>
30 #include <asm/io.h>
31 #include <linux/delay.h>
32 #include <linux/interrupt.h>
33 #include <linux/init.h>
34 #include <linux/pci.h>
35 #include <linux/slab.h>
36 #include <linux/moduleparam.h>
37 #include <sound/core.h>
38 #include <sound/pcm.h>
39 #include <sound/ac97_codec.h>
40 #include <sound/info.h>
41 #include <sound/initval.h>
42 /* for 440MX workaround */
43 #include <asm/pgtable.h>
44 #include <asm/cacheflush.h>
45 
46 MODULE_AUTHOR("Jaroslav Kysela <perex@suse.cz>");
47 MODULE_DESCRIPTION("Intel 82801AA,82901AB,i810,i820,i830,i840,i845,MX440; SiS 7012; Ali 5455");
48 MODULE_LICENSE("GPL");
49 MODULE_SUPPORTED_DEVICE("{{Intel,82801AA-ICH},"
50 		"{Intel,82901AB-ICH0},"
51 		"{Intel,82801BA-ICH2},"
52 		"{Intel,82801CA-ICH3},"
53 		"{Intel,82801DB-ICH4},"
54 		"{Intel,ICH5},"
55 		"{Intel,ICH6},"
56 		"{Intel,ICH7},"
57 		"{Intel,6300ESB},"
58 		"{Intel,ESB2},"
59 		"{Intel,MX440},"
60 		"{SiS,SI7012},"
61 		"{NVidia,nForce Audio},"
62 		"{NVidia,nForce2 Audio},"
63 		"{AMD,AMD768},"
64 		"{AMD,AMD8111},"
65 	        "{ALI,M5455}}");
66 
67 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;	/* Index 0-MAX */
68 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;	/* ID for this card */
69 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;	/* Enable this card */
70 static int ac97_clock[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 0};
71 static char *ac97_quirk[SNDRV_CARDS];
72 static int buggy_irq[SNDRV_CARDS];
73 static int xbox[SNDRV_CARDS];
74 
75 #ifdef SUPPORT_MIDI
76 static int mpu_port[SNDRV_CARDS]; /* disabled */
77 #endif
78 
79 module_param_array(index, int, NULL, 0444);
80 MODULE_PARM_DESC(index, "Index value for Intel i8x0 soundcard.");
81 module_param_array(id, charp, NULL, 0444);
82 MODULE_PARM_DESC(id, "ID string for Intel i8x0 soundcard.");
83 module_param_array(enable, bool, NULL, 0444);
84 MODULE_PARM_DESC(enable, "Enable Intel i8x0 soundcard.");
85 module_param_array(ac97_clock, int, NULL, 0444);
86 MODULE_PARM_DESC(ac97_clock, "AC'97 codec clock (0 = auto-detect).");
87 module_param_array(ac97_quirk, charp, NULL, 0444);
88 MODULE_PARM_DESC(ac97_quirk, "AC'97 workaround for strange hardware.");
89 module_param_array(buggy_irq, bool, NULL, 0444);
90 MODULE_PARM_DESC(buggy_irq, "Enable workaround for buggy interrupts on some motherboards.");
91 module_param_array(xbox, bool, NULL, 0444);
92 MODULE_PARM_DESC(xbox, "Set to 1 for Xbox, if you have problems with the AC'97 codec detection.");
93 
94 /*
95  *  Direct registers
96  */
97 
98 #ifndef PCI_DEVICE_ID_INTEL_82801
99 #define PCI_DEVICE_ID_INTEL_82801       0x2415
100 #endif
101 #ifndef PCI_DEVICE_ID_INTEL_82901
102 #define PCI_DEVICE_ID_INTEL_82901       0x2425
103 #endif
104 #ifndef PCI_DEVICE_ID_INTEL_82801BA
105 #define PCI_DEVICE_ID_INTEL_82801BA     0x2445
106 #endif
107 #ifndef PCI_DEVICE_ID_INTEL_440MX
108 #define PCI_DEVICE_ID_INTEL_440MX       0x7195
109 #endif
110 #ifndef PCI_DEVICE_ID_INTEL_ICH3
111 #define PCI_DEVICE_ID_INTEL_ICH3	0x2485
112 #endif
113 #ifndef PCI_DEVICE_ID_INTEL_ICH4
114 #define PCI_DEVICE_ID_INTEL_ICH4	0x24c5
115 #endif
116 #ifndef PCI_DEVICE_ID_INTEL_ICH5
117 #define PCI_DEVICE_ID_INTEL_ICH5	0x24d5
118 #endif
119 #ifndef PCI_DEVICE_ID_INTEL_ESB_5
120 #define PCI_DEVICE_ID_INTEL_ESB_5	0x25a6
121 #endif
122 #ifndef PCI_DEVICE_ID_INTEL_ICH6_18
123 #define PCI_DEVICE_ID_INTEL_ICH6_18	0x266e
124 #endif
125 #ifndef PCI_DEVICE_ID_INTEL_ICH7_20
126 #define PCI_DEVICE_ID_INTEL_ICH7_20	0x27de
127 #endif
128 #ifndef PCI_DEVICE_ID_INTEL_ESB2_14
129 #define PCI_DEVICE_ID_INTEL_ESB2_14	0x2698
130 #endif
131 #ifndef PCI_DEVICE_ID_SI_7012
132 #define PCI_DEVICE_ID_SI_7012		0x7012
133 #endif
134 #ifndef PCI_DEVICE_ID_NVIDIA_MCP_AUDIO
135 #define PCI_DEVICE_ID_NVIDIA_MCP_AUDIO	0x01b1
136 #endif
137 #ifndef PCI_DEVICE_ID_NVIDIA_CK804_AUDIO
138 #define PCI_DEVICE_ID_NVIDIA_CK804_AUDIO 0x0059
139 #endif
140 #ifndef PCI_DEVICE_ID_NVIDIA_MCP2_AUDIO
141 #define PCI_DEVICE_ID_NVIDIA_MCP2_AUDIO	0x006a
142 #endif
143 #ifndef PCI_DEVICE_ID_NVIDIA_CK8_AUDIO
144 #define PCI_DEVICE_ID_NVIDIA_CK8_AUDIO	0x008a
145 #endif
146 #ifndef PCI_DEVICE_ID_NVIDIA_MCP3_AUDIO
147 #define PCI_DEVICE_ID_NVIDIA_MCP3_AUDIO	0x00da
148 #endif
149 #ifndef PCI_DEVICE_ID_NVIDIA_CK8S_AUDIO
150 #define PCI_DEVICE_ID_NVIDIA_CK8S_AUDIO	0x00ea
151 #endif
152 
153 enum { DEVICE_INTEL, DEVICE_INTEL_ICH4, DEVICE_SIS, DEVICE_ALI, DEVICE_NFORCE };
154 
155 #define ICHREG(x) ICH_REG_##x
156 
157 #define DEFINE_REGSET(name,base) \
158 enum { \
159 	ICH_REG_##name##_BDBAR	= base + 0x0,	/* dword - buffer descriptor list base address */ \
160 	ICH_REG_##name##_CIV	= base + 0x04,	/* byte - current index value */ \
161 	ICH_REG_##name##_LVI	= base + 0x05,	/* byte - last valid index */ \
162 	ICH_REG_##name##_SR	= base + 0x06,	/* byte - status register */ \
163 	ICH_REG_##name##_PICB	= base + 0x08,	/* word - position in current buffer */ \
164 	ICH_REG_##name##_PIV	= base + 0x0a,	/* byte - prefetched index value */ \
165 	ICH_REG_##name##_CR	= base + 0x0b,	/* byte - control register */ \
166 };
167 
168 /* busmaster blocks */
169 DEFINE_REGSET(OFF, 0);		/* offset */
170 DEFINE_REGSET(PI, 0x00);	/* PCM in */
171 DEFINE_REGSET(PO, 0x10);	/* PCM out */
172 DEFINE_REGSET(MC, 0x20);	/* Mic in */
173 
174 /* ICH4 busmaster blocks */
175 DEFINE_REGSET(MC2, 0x40);	/* Mic in 2 */
176 DEFINE_REGSET(PI2, 0x50);	/* PCM in 2 */
177 DEFINE_REGSET(SP, 0x60);	/* SPDIF out */
178 
179 /* values for each busmaster block */
180 
181 /* LVI */
182 #define ICH_REG_LVI_MASK		0x1f
183 
184 /* SR */
185 #define ICH_FIFOE			0x10	/* FIFO error */
186 #define ICH_BCIS			0x08	/* buffer completion interrupt status */
187 #define ICH_LVBCI			0x04	/* last valid buffer completion interrupt */
188 #define ICH_CELV			0x02	/* current equals last valid */
189 #define ICH_DCH				0x01	/* DMA controller halted */
190 
191 /* PIV */
192 #define ICH_REG_PIV_MASK		0x1f	/* mask */
193 
194 /* CR */
195 #define ICH_IOCE			0x10	/* interrupt on completion enable */
196 #define ICH_FEIE			0x08	/* fifo error interrupt enable */
197 #define ICH_LVBIE			0x04	/* last valid buffer interrupt enable */
198 #define ICH_RESETREGS			0x02	/* reset busmaster registers */
199 #define ICH_STARTBM			0x01	/* start busmaster operation */
200 
201 
202 /* global block */
203 #define ICH_REG_GLOB_CNT		0x2c	/* dword - global control */
204 #define   ICH_PCM_SPDIF_MASK	0xc0000000	/* s/pdif pcm slot mask (ICH4) */
205 #define   ICH_PCM_SPDIF_NONE	0x00000000	/* reserved - undefined */
206 #define   ICH_PCM_SPDIF_78	0x40000000	/* s/pdif pcm on slots 7&8 */
207 #define   ICH_PCM_SPDIF_69	0x80000000	/* s/pdif pcm on slots 6&9 */
208 #define   ICH_PCM_SPDIF_1011	0xc0000000	/* s/pdif pcm on slots 10&11 */
209 #define   ICH_PCM_20BIT		0x00400000	/* 20-bit samples (ICH4) */
210 #define   ICH_PCM_246_MASK	0x00300000	/* 6 channels (not all chips) */
211 #define   ICH_PCM_6		0x00200000	/* 6 channels (not all chips) */
212 #define   ICH_PCM_4		0x00100000	/* 4 channels (not all chips) */
213 #define   ICH_PCM_2		0x00000000	/* 2 channels (stereo) */
214 #define   ICH_SIS_PCM_246_MASK	0x000000c0	/* 6 channels (SIS7012) */
215 #define   ICH_SIS_PCM_6		0x00000080	/* 6 channels (SIS7012) */
216 #define   ICH_SIS_PCM_4		0x00000040	/* 4 channels (SIS7012) */
217 #define   ICH_SIS_PCM_2		0x00000000	/* 2 channels (SIS7012) */
218 #define   ICH_TRIE		0x00000040	/* tertiary resume interrupt enable */
219 #define   ICH_SRIE		0x00000020	/* secondary resume interrupt enable */
220 #define   ICH_PRIE		0x00000010	/* primary resume interrupt enable */
221 #define   ICH_ACLINK		0x00000008	/* AClink shut off */
222 #define   ICH_AC97WARM		0x00000004	/* AC'97 warm reset */
223 #define   ICH_AC97COLD		0x00000002	/* AC'97 cold reset */
224 #define   ICH_GIE		0x00000001	/* GPI interrupt enable */
225 #define ICH_REG_GLOB_STA		0x30	/* dword - global status */
226 #define   ICH_TRI		0x20000000	/* ICH4: tertiary (AC_SDIN2) resume interrupt */
227 #define   ICH_TCR		0x10000000	/* ICH4: tertiary (AC_SDIN2) codec ready */
228 #define   ICH_BCS		0x08000000	/* ICH4: bit clock stopped */
229 #define   ICH_SPINT		0x04000000	/* ICH4: S/PDIF interrupt */
230 #define   ICH_P2INT		0x02000000	/* ICH4: PCM2-In interrupt */
231 #define   ICH_M2INT		0x01000000	/* ICH4: Mic2-In interrupt */
232 #define   ICH_SAMPLE_CAP	0x00c00000	/* ICH4: sample capability bits (RO) */
233 #define   ICH_SAMPLE_16_20	0x00400000	/* ICH4: 16- and 20-bit samples */
234 #define   ICH_MULTICHAN_CAP	0x00300000	/* ICH4: multi-channel capability bits (RO) */
235 #define   ICH_MD3		0x00020000	/* modem power down semaphore */
236 #define   ICH_AD3		0x00010000	/* audio power down semaphore */
237 #define   ICH_RCS		0x00008000	/* read completion status */
238 #define   ICH_BIT3		0x00004000	/* bit 3 slot 12 */
239 #define   ICH_BIT2		0x00002000	/* bit 2 slot 12 */
240 #define   ICH_BIT1		0x00001000	/* bit 1 slot 12 */
241 #define   ICH_SRI		0x00000800	/* secondary (AC_SDIN1) resume interrupt */
242 #define   ICH_PRI		0x00000400	/* primary (AC_SDIN0) resume interrupt */
243 #define   ICH_SCR		0x00000200	/* secondary (AC_SDIN1) codec ready */
244 #define   ICH_PCR		0x00000100	/* primary (AC_SDIN0) codec ready */
245 #define   ICH_MCINT		0x00000080	/* MIC capture interrupt */
246 #define   ICH_POINT		0x00000040	/* playback interrupt */
247 #define   ICH_PIINT		0x00000020	/* capture interrupt */
248 #define   ICH_NVSPINT		0x00000010	/* nforce spdif interrupt */
249 #define   ICH_MOINT		0x00000004	/* modem playback interrupt */
250 #define   ICH_MIINT		0x00000002	/* modem capture interrupt */
251 #define   ICH_GSCI		0x00000001	/* GPI status change interrupt */
252 #define ICH_REG_ACC_SEMA		0x34	/* byte - codec write semaphore */
253 #define   ICH_CAS		0x01		/* codec access semaphore */
254 #define ICH_REG_SDM		0x80
255 #define   ICH_DI2L_MASK		0x000000c0	/* PCM In 2, Mic In 2 data in line */
256 #define   ICH_DI2L_SHIFT	6
257 #define   ICH_DI1L_MASK		0x00000030	/* PCM In 1, Mic In 1 data in line */
258 #define   ICH_DI1L_SHIFT	4
259 #define   ICH_SE		0x00000008	/* steer enable */
260 #define   ICH_LDI_MASK		0x00000003	/* last codec read data input */
261 
262 #define ICH_MAX_FRAGS		32		/* max hw frags */
263 
264 
265 /*
266  * registers for Ali5455
267  */
268 
269 /* ALi 5455 busmaster blocks */
270 DEFINE_REGSET(AL_PI, 0x40);	/* ALi PCM in */
271 DEFINE_REGSET(AL_PO, 0x50);	/* Ali PCM out */
272 DEFINE_REGSET(AL_MC, 0x60);	/* Ali Mic in */
273 DEFINE_REGSET(AL_CDC_SPO, 0x70);	/* Ali Codec SPDIF out */
274 DEFINE_REGSET(AL_CENTER, 0x80);		/* Ali center out */
275 DEFINE_REGSET(AL_LFE, 0x90);		/* Ali center out */
276 DEFINE_REGSET(AL_CLR_SPI, 0xa0);	/* Ali Controller SPDIF in */
277 DEFINE_REGSET(AL_CLR_SPO, 0xb0);	/* Ali Controller SPDIF out */
278 DEFINE_REGSET(AL_I2S, 0xc0);	/* Ali I2S in */
279 DEFINE_REGSET(AL_PI2, 0xd0);	/* Ali PCM2 in */
280 DEFINE_REGSET(AL_MC2, 0xe0);	/* Ali Mic2 in */
281 
282 enum {
283 	ICH_REG_ALI_SCR = 0x00,		/* System Control Register */
284 	ICH_REG_ALI_SSR = 0x04,		/* System Status Register  */
285 	ICH_REG_ALI_DMACR = 0x08,	/* DMA Control Register    */
286 	ICH_REG_ALI_FIFOCR1 = 0x0c,	/* FIFO Control Register 1  */
287 	ICH_REG_ALI_INTERFACECR = 0x10,	/* Interface Control Register */
288 	ICH_REG_ALI_INTERRUPTCR = 0x14,	/* Interrupt control Register */
289 	ICH_REG_ALI_INTERRUPTSR = 0x18,	/* Interrupt  Status Register */
290 	ICH_REG_ALI_FIFOCR2 = 0x1c,	/* FIFO Control Register 2   */
291 	ICH_REG_ALI_CPR = 0x20,		/* Command Port Register     */
292 	ICH_REG_ALI_CPR_ADDR = 0x22,	/* ac97 addr write */
293 	ICH_REG_ALI_SPR = 0x24,		/* Status Port Register      */
294 	ICH_REG_ALI_SPR_ADDR = 0x26,	/* ac97 addr read */
295 	ICH_REG_ALI_FIFOCR3 = 0x2c,	/* FIFO Control Register 3  */
296 	ICH_REG_ALI_TTSR = 0x30,	/* Transmit Tag Slot Register */
297 	ICH_REG_ALI_RTSR = 0x34,	/* Receive Tag Slot  Register */
298 	ICH_REG_ALI_CSPSR = 0x38,	/* Command/Status Port Status Register */
299 	ICH_REG_ALI_CAS = 0x3c,		/* Codec Write Semaphore Register */
300 	ICH_REG_ALI_HWVOL = 0xf0,	/* hardware volume control/status */
301 	ICH_REG_ALI_I2SCR = 0xf4,	/* I2S control/status */
302 	ICH_REG_ALI_SPDIFCSR = 0xf8,	/* spdif channel status register  */
303 	ICH_REG_ALI_SPDIFICS = 0xfc,	/* spdif interface control/status  */
304 };
305 
306 #define ALI_CAS_SEM_BUSY	0x80000000
307 #define ALI_CPR_ADDR_SECONDARY	0x100
308 #define ALI_CPR_ADDR_READ	0x80
309 #define ALI_CSPSR_CODEC_READY	0x08
310 #define ALI_CSPSR_READ_OK	0x02
311 #define ALI_CSPSR_WRITE_OK	0x01
312 
313 /* interrupts for the whole chip by interrupt status register finish */
314 
315 #define ALI_INT_MICIN2		(1<<26)
316 #define ALI_INT_PCMIN2		(1<<25)
317 #define ALI_INT_I2SIN		(1<<24)
318 #define ALI_INT_SPDIFOUT	(1<<23)	/* controller spdif out INTERRUPT */
319 #define ALI_INT_SPDIFIN		(1<<22)
320 #define ALI_INT_LFEOUT		(1<<21)
321 #define ALI_INT_CENTEROUT	(1<<20)
322 #define ALI_INT_CODECSPDIFOUT	(1<<19)
323 #define ALI_INT_MICIN		(1<<18)
324 #define ALI_INT_PCMOUT		(1<<17)
325 #define ALI_INT_PCMIN		(1<<16)
326 #define ALI_INT_CPRAIS		(1<<7)	/* command port available */
327 #define ALI_INT_SPRAIS		(1<<5)	/* status port available */
328 #define ALI_INT_GPIO		(1<<1)
329 #define ALI_INT_MASK		(ALI_INT_SPDIFOUT|ALI_INT_CODECSPDIFOUT|ALI_INT_MICIN|ALI_INT_PCMOUT|ALI_INT_PCMIN)
330 
331 #define ICH_ALI_SC_RESET	(1<<31)	/* master reset */
332 #define ICH_ALI_SC_AC97_DBL	(1<<30)
333 #define ICH_ALI_SC_CODEC_SPDF	(3<<20)	/* 1=7/8, 2=6/9, 3=10/11 */
334 #define ICH_ALI_SC_IN_BITS	(3<<18)
335 #define ICH_ALI_SC_OUT_BITS	(3<<16)
336 #define ICH_ALI_SC_6CH_CFG	(3<<14)
337 #define ICH_ALI_SC_PCM_4	(1<<8)
338 #define ICH_ALI_SC_PCM_6	(2<<8)
339 #define ICH_ALI_SC_PCM_246_MASK	(3<<8)
340 
341 #define ICH_ALI_SS_SEC_ID	(3<<5)
342 #define ICH_ALI_SS_PRI_ID	(3<<3)
343 
344 #define ICH_ALI_IF_AC97SP	(1<<21)
345 #define ICH_ALI_IF_MC		(1<<20)
346 #define ICH_ALI_IF_PI		(1<<19)
347 #define ICH_ALI_IF_MC2		(1<<18)
348 #define ICH_ALI_IF_PI2		(1<<17)
349 #define ICH_ALI_IF_LINE_SRC	(1<<15)	/* 0/1 = slot 3/6 */
350 #define ICH_ALI_IF_MIC_SRC	(1<<14)	/* 0/1 = slot 3/6 */
351 #define ICH_ALI_IF_SPDF_SRC	(3<<12)	/* 00 = PCM, 01 = AC97-in, 10 = spdif-in, 11 = i2s */
352 #define ICH_ALI_IF_AC97_OUT	(3<<8)	/* 00 = PCM, 10 = spdif-in, 11 = i2s */
353 #define ICH_ALI_IF_PO_SPDF	(1<<3)
354 #define ICH_ALI_IF_PO		(1<<1)
355 
356 /*
357  *
358  */
359 
360 enum { ICHD_PCMIN, ICHD_PCMOUT, ICHD_MIC, ICHD_MIC2, ICHD_PCM2IN, ICHD_SPBAR, ICHD_LAST = ICHD_SPBAR };
361 enum { NVD_PCMIN, NVD_PCMOUT, NVD_MIC, NVD_SPBAR, NVD_LAST = NVD_SPBAR };
362 enum { ALID_PCMIN, ALID_PCMOUT, ALID_MIC, ALID_AC97SPDIFOUT, ALID_SPDIFIN, ALID_SPDIFOUT, ALID_LAST = ALID_SPDIFOUT };
363 
364 #define get_ichdev(substream) (ichdev_t *)(substream->runtime->private_data)
365 
366 typedef struct {
367 	unsigned int ichd;			/* ich device number */
368 	unsigned long reg_offset;		/* offset to bmaddr */
369 	u32 *bdbar;				/* CPU address (32bit) */
370 	unsigned int bdbar_addr;		/* PCI bus address (32bit) */
371 	snd_pcm_substream_t *substream;
372 	unsigned int physbuf;			/* physical address (32bit) */
373         unsigned int size;
374         unsigned int fragsize;
375         unsigned int fragsize1;
376         unsigned int position;
377 	unsigned int pos_shift;
378         int frags;
379         int lvi;
380         int lvi_frag;
381 	int civ;
382 	int ack;
383 	int ack_reload;
384 	unsigned int ack_bit;
385 	unsigned int roff_sr;
386 	unsigned int roff_picb;
387 	unsigned int int_sta_mask;		/* interrupt status mask */
388 	unsigned int ali_slot;			/* ALI DMA slot */
389 	struct ac97_pcm *pcm;
390 	int pcm_open_flag;
391 	unsigned int page_attr_changed: 1;
392 } ichdev_t;
393 
394 typedef struct _snd_intel8x0 intel8x0_t;
395 
396 struct _snd_intel8x0 {
397 	unsigned int device_type;
398 
399 	int irq;
400 
401 	unsigned int mmio;
402 	unsigned long addr;
403 	void __iomem *remap_addr;
404 	unsigned int bm_mmio;
405 	unsigned long bmaddr;
406 	void __iomem *remap_bmaddr;
407 
408 	struct pci_dev *pci;
409 	snd_card_t *card;
410 
411 	int pcm_devs;
412 	snd_pcm_t *pcm[6];
413 	ichdev_t ichd[6];
414 
415 	unsigned multi4: 1,
416 		 multi6: 1,
417 		 dra: 1,
418 		 smp20bit: 1;
419 	unsigned in_ac97_init: 1,
420 		 in_sdin_init: 1;
421 	unsigned in_measurement: 1;	/* during ac97 clock measurement */
422 	unsigned fix_nocache: 1; 	/* workaround for 440MX */
423 	unsigned buggy_irq: 1;		/* workaround for buggy mobos */
424 	unsigned xbox: 1;		/* workaround for Xbox AC'97 detection */
425 
426 	int spdif_idx;	/* SPDIF BAR index; *_SPBAR or -1 if use PCMOUT */
427 
428 	ac97_bus_t *ac97_bus;
429 	ac97_t *ac97[3];
430 	unsigned int ac97_sdin[3];
431 
432 	spinlock_t reg_lock;
433 
434 	u32 bdbars_count;
435 	struct snd_dma_buffer bdbars;
436 	u32 int_sta_reg;		/* interrupt status register */
437 	u32 int_sta_mask;		/* interrupt status mask */
438 };
439 
440 static struct pci_device_id snd_intel8x0_ids[] = {
441 	{ 0x8086, 0x2415, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL },	/* 82801AA */
442 	{ 0x8086, 0x2425, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL },	/* 82901AB */
443 	{ 0x8086, 0x2445, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL },	/* 82801BA */
444 	{ 0x8086, 0x2485, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL },	/* ICH3 */
445 	{ 0x8086, 0x24c5, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL_ICH4 }, /* ICH4 */
446 	{ 0x8086, 0x24d5, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL_ICH4 }, /* ICH5 */
447 	{ 0x8086, 0x25a6, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL_ICH4 }, /* ESB */
448 	{ 0x8086, 0x266e, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL_ICH4 }, /* ICH6 */
449 	{ 0x8086, 0x27de, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL_ICH4 }, /* ICH7 */
450 	{ 0x8086, 0x2698, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL_ICH4 }, /* ESB2 */
451 	{ 0x8086, 0x7195, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL },	/* 440MX */
452 	{ 0x1039, 0x7012, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_SIS },	/* SI7012 */
453 	{ 0x10de, 0x01b1, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_NFORCE },	/* NFORCE */
454 	{ 0x10de, 0x003a, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_NFORCE },	/* MCP04 */
455 	{ 0x10de, 0x006a, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_NFORCE },	/* NFORCE2 */
456 	{ 0x10de, 0x0059, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_NFORCE },	/* CK804 */
457 	{ 0x10de, 0x008a, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_NFORCE },	/* CK8 */
458 	{ 0x10de, 0x00da, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_NFORCE },	/* NFORCE3 */
459 	{ 0x10de, 0x00ea, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_NFORCE },	/* CK8S */
460 	{ 0x1022, 0x746d, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL },	/* AMD8111 */
461 	{ 0x1022, 0x7445, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL },	/* AMD768 */
462 	{ 0x10b9, 0x5455, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_ALI },   /* Ali5455 */
463 	{ 0, }
464 };
465 
466 MODULE_DEVICE_TABLE(pci, snd_intel8x0_ids);
467 
468 /*
469  *  Lowlevel I/O - busmaster
470  */
471 
472 static u8 igetbyte(intel8x0_t *chip, u32 offset)
473 {
474 	if (chip->bm_mmio)
475 		return readb(chip->remap_bmaddr + offset);
476 	else
477 		return inb(chip->bmaddr + offset);
478 }
479 
480 static u16 igetword(intel8x0_t *chip, u32 offset)
481 {
482 	if (chip->bm_mmio)
483 		return readw(chip->remap_bmaddr + offset);
484 	else
485 		return inw(chip->bmaddr + offset);
486 }
487 
488 static u32 igetdword(intel8x0_t *chip, u32 offset)
489 {
490 	if (chip->bm_mmio)
491 		return readl(chip->remap_bmaddr + offset);
492 	else
493 		return inl(chip->bmaddr + offset);
494 }
495 
496 static void iputbyte(intel8x0_t *chip, u32 offset, u8 val)
497 {
498 	if (chip->bm_mmio)
499 		writeb(val, chip->remap_bmaddr + offset);
500 	else
501 		outb(val, chip->bmaddr + offset);
502 }
503 
504 static void iputword(intel8x0_t *chip, u32 offset, u16 val)
505 {
506 	if (chip->bm_mmio)
507 		writew(val, chip->remap_bmaddr + offset);
508 	else
509 		outw(val, chip->bmaddr + offset);
510 }
511 
512 static void iputdword(intel8x0_t *chip, u32 offset, u32 val)
513 {
514 	if (chip->bm_mmio)
515 		writel(val, chip->remap_bmaddr + offset);
516 	else
517 		outl(val, chip->bmaddr + offset);
518 }
519 
520 /*
521  *  Lowlevel I/O - AC'97 registers
522  */
523 
524 static u16 iagetword(intel8x0_t *chip, u32 offset)
525 {
526 	if (chip->mmio)
527 		return readw(chip->remap_addr + offset);
528 	else
529 		return inw(chip->addr + offset);
530 }
531 
532 static void iaputword(intel8x0_t *chip, u32 offset, u16 val)
533 {
534 	if (chip->mmio)
535 		writew(val, chip->remap_addr + offset);
536 	else
537 		outw(val, chip->addr + offset);
538 }
539 
540 /*
541  *  Basic I/O
542  */
543 
544 /*
545  * access to AC97 codec via normal i/o (for ICH and SIS7012)
546  */
547 
548 /* return the GLOB_STA bit for the corresponding codec */
549 static unsigned int get_ich_codec_bit(intel8x0_t *chip, unsigned int codec)
550 {
551 	static unsigned int codec_bit[3] = {
552 		ICH_PCR, ICH_SCR, ICH_TCR
553 	};
554 	snd_assert(codec < 3, return ICH_PCR);
555 	if (chip->device_type == DEVICE_INTEL_ICH4)
556 		codec = chip->ac97_sdin[codec];
557 	return codec_bit[codec];
558 }
559 
560 static int snd_intel8x0_codec_semaphore(intel8x0_t *chip, unsigned int codec)
561 {
562 	int time;
563 
564 	if (codec > 2)
565 		return -EIO;
566 	if (chip->in_sdin_init) {
567 		/* we don't know the ready bit assignment at the moment */
568 		/* so we check any */
569 		codec = ICH_PCR | ICH_SCR | ICH_TCR;
570 	} else {
571 		codec = get_ich_codec_bit(chip, codec);
572 	}
573 
574 	/* codec ready ? */
575 	if ((igetdword(chip, ICHREG(GLOB_STA)) & codec) == 0)
576 		return -EIO;
577 
578 	/* Anyone holding a semaphore for 1 msec should be shot... */
579 	time = 100;
580       	do {
581       		if (!(igetbyte(chip, ICHREG(ACC_SEMA)) & ICH_CAS))
582       			return 0;
583 		udelay(10);
584 	} while (time--);
585 
586 	/* access to some forbidden (non existant) ac97 registers will not
587 	 * reset the semaphore. So even if you don't get the semaphore, still
588 	 * continue the access. We don't need the semaphore anyway. */
589 	snd_printk("codec_semaphore: semaphore is not ready [0x%x][0x%x]\n",
590 			igetbyte(chip, ICHREG(ACC_SEMA)), igetdword(chip, ICHREG(GLOB_STA)));
591 	iagetword(chip, 0);	/* clear semaphore flag */
592 	/* I don't care about the semaphore */
593 	return -EBUSY;
594 }
595 
596 static void snd_intel8x0_codec_write(ac97_t *ac97,
597 				     unsigned short reg,
598 				     unsigned short val)
599 {
600 	intel8x0_t *chip = ac97->private_data;
601 
602 	if (snd_intel8x0_codec_semaphore(chip, ac97->num) < 0) {
603 		if (! chip->in_ac97_init)
604 			snd_printk("codec_write %d: semaphore is not ready for register 0x%x\n", ac97->num, reg);
605 	}
606 	iaputword(chip, reg + ac97->num * 0x80, val);
607 }
608 
609 static unsigned short snd_intel8x0_codec_read(ac97_t *ac97,
610 					      unsigned short reg)
611 {
612 	intel8x0_t *chip = ac97->private_data;
613 	unsigned short res;
614 	unsigned int tmp;
615 
616 	if (snd_intel8x0_codec_semaphore(chip, ac97->num) < 0) {
617 		if (! chip->in_ac97_init)
618 			snd_printk("codec_read %d: semaphore is not ready for register 0x%x\n", ac97->num, reg);
619 		res = 0xffff;
620 	} else {
621 		res = iagetword(chip, reg + ac97->num * 0x80);
622 		if ((tmp = igetdword(chip, ICHREG(GLOB_STA))) & ICH_RCS) {
623 			/* reset RCS and preserve other R/WC bits */
624 			iputdword(chip, ICHREG(GLOB_STA), tmp & ~(ICH_SRI|ICH_PRI|ICH_TRI|ICH_GSCI));
625 			if (! chip->in_ac97_init)
626 				snd_printk("codec_read %d: read timeout for register 0x%x\n", ac97->num, reg);
627 			res = 0xffff;
628 		}
629 	}
630 	return res;
631 }
632 
633 static void snd_intel8x0_codec_read_test(intel8x0_t *chip, unsigned int codec)
634 {
635 	unsigned int tmp;
636 
637 	if (snd_intel8x0_codec_semaphore(chip, codec) >= 0) {
638 		iagetword(chip, codec * 0x80);
639 		if ((tmp = igetdword(chip, ICHREG(GLOB_STA))) & ICH_RCS) {
640 			/* reset RCS and preserve other R/WC bits */
641 			iputdword(chip, ICHREG(GLOB_STA), tmp & ~(ICH_SRI|ICH_PRI|ICH_TRI|ICH_GSCI));
642 		}
643 	}
644 }
645 
646 /*
647  * access to AC97 for Ali5455
648  */
649 static int snd_intel8x0_ali_codec_ready(intel8x0_t *chip, int mask)
650 {
651 	int count = 0;
652 	for (count = 0; count < 0x7f; count++) {
653 		int val = igetbyte(chip, ICHREG(ALI_CSPSR));
654 		if (val & mask)
655 			return 0;
656 	}
657 	snd_printd(KERN_WARNING "intel8x0: AC97 codec ready timeout.\n");
658 	return -EBUSY;
659 }
660 
661 static int snd_intel8x0_ali_codec_semaphore(intel8x0_t *chip)
662 {
663 	int time = 100;
664 	while (time-- && (igetdword(chip, ICHREG(ALI_CAS)) & ALI_CAS_SEM_BUSY))
665 		udelay(1);
666 	if (! time)
667 		snd_printk(KERN_WARNING "ali_codec_semaphore timeout\n");
668 	return snd_intel8x0_ali_codec_ready(chip, ALI_CSPSR_CODEC_READY);
669 }
670 
671 static unsigned short snd_intel8x0_ali_codec_read(ac97_t *ac97, unsigned short reg)
672 {
673 	intel8x0_t *chip = ac97->private_data;
674 	unsigned short data = 0xffff;
675 
676 	if (snd_intel8x0_ali_codec_semaphore(chip))
677 		goto __err;
678 	reg |= ALI_CPR_ADDR_READ;
679 	if (ac97->num)
680 		reg |= ALI_CPR_ADDR_SECONDARY;
681 	iputword(chip, ICHREG(ALI_CPR_ADDR), reg);
682 	if (snd_intel8x0_ali_codec_ready(chip, ALI_CSPSR_READ_OK))
683 		goto __err;
684 	data = igetword(chip, ICHREG(ALI_SPR));
685  __err:
686 	return data;
687 }
688 
689 static void snd_intel8x0_ali_codec_write(ac97_t *ac97, unsigned short reg, unsigned short val)
690 {
691 	intel8x0_t *chip = ac97->private_data;
692 
693 	if (snd_intel8x0_ali_codec_semaphore(chip))
694 		return;
695 	iputword(chip, ICHREG(ALI_CPR), val);
696 	if (ac97->num)
697 		reg |= ALI_CPR_ADDR_SECONDARY;
698 	iputword(chip, ICHREG(ALI_CPR_ADDR), reg);
699 	snd_intel8x0_ali_codec_ready(chip, ALI_CSPSR_WRITE_OK);
700 }
701 
702 
703 /*
704  * DMA I/O
705  */
706 static void snd_intel8x0_setup_periods(intel8x0_t *chip, ichdev_t *ichdev)
707 {
708 	int idx;
709 	u32 *bdbar = ichdev->bdbar;
710 	unsigned long port = ichdev->reg_offset;
711 
712 	iputdword(chip, port + ICH_REG_OFF_BDBAR, ichdev->bdbar_addr);
713 	if (ichdev->size == ichdev->fragsize) {
714 		ichdev->ack_reload = ichdev->ack = 2;
715 		ichdev->fragsize1 = ichdev->fragsize >> 1;
716 		for (idx = 0; idx < (ICH_REG_LVI_MASK + 1) * 2; idx += 4) {
717 			bdbar[idx + 0] = cpu_to_le32(ichdev->physbuf);
718 			bdbar[idx + 1] = cpu_to_le32(0x80000000 | /* interrupt on completion */
719 						     ichdev->fragsize1 >> ichdev->pos_shift);
720 			bdbar[idx + 2] = cpu_to_le32(ichdev->physbuf + (ichdev->size >> 1));
721 			bdbar[idx + 3] = cpu_to_le32(0x80000000 | /* interrupt on completion */
722 						     ichdev->fragsize1 >> ichdev->pos_shift);
723 		}
724 		ichdev->frags = 2;
725 	} else {
726 		ichdev->ack_reload = ichdev->ack = 1;
727 		ichdev->fragsize1 = ichdev->fragsize;
728 		for (idx = 0; idx < (ICH_REG_LVI_MASK + 1) * 2; idx += 2) {
729 			bdbar[idx + 0] = cpu_to_le32(ichdev->physbuf + (((idx >> 1) * ichdev->fragsize) % ichdev->size));
730 			bdbar[idx + 1] = cpu_to_le32(0x80000000 | /* interrupt on completion */
731 						     ichdev->fragsize >> ichdev->pos_shift);
732 			// printk("bdbar[%i] = 0x%x [0x%x]\n", idx + 0, bdbar[idx + 0], bdbar[idx + 1]);
733 		}
734 		ichdev->frags = ichdev->size / ichdev->fragsize;
735 	}
736 	iputbyte(chip, port + ICH_REG_OFF_LVI, ichdev->lvi = ICH_REG_LVI_MASK);
737 	ichdev->civ = 0;
738 	iputbyte(chip, port + ICH_REG_OFF_CIV, 0);
739 	ichdev->lvi_frag = ICH_REG_LVI_MASK % ichdev->frags;
740 	ichdev->position = 0;
741 #if 0
742 	printk("lvi_frag = %i, frags = %i, period_size = 0x%x, period_size1 = 0x%x\n",
743 			ichdev->lvi_frag, ichdev->frags, ichdev->fragsize, ichdev->fragsize1);
744 #endif
745 	/* clear interrupts */
746 	iputbyte(chip, port + ichdev->roff_sr, ICH_FIFOE | ICH_BCIS | ICH_LVBCI);
747 }
748 
749 #ifdef __i386__
750 /*
751  * Intel 82443MX running a 100MHz processor system bus has a hardware bug,
752  * which aborts PCI busmaster for audio transfer.  A workaround is to set
753  * the pages as non-cached.  For details, see the errata in
754  *	http://www.intel.com/design/chipsets/specupdt/245051.htm
755  */
756 static void fill_nocache(void *buf, int size, int nocache)
757 {
758 	size = (size + PAGE_SIZE - 1) >> PAGE_SHIFT;
759 	change_page_attr(virt_to_page(buf), size, nocache ? PAGE_KERNEL_NOCACHE : PAGE_KERNEL);
760 	global_flush_tlb();
761 }
762 #else
763 #define fill_nocache(buf,size,nocache)
764 #endif
765 
766 /*
767  *  Interrupt handler
768  */
769 
770 static inline void snd_intel8x0_update(intel8x0_t *chip, ichdev_t *ichdev)
771 {
772 	unsigned long port = ichdev->reg_offset;
773 	int status, civ, i, step;
774 	int ack = 0;
775 
776 	spin_lock(&chip->reg_lock);
777 	status = igetbyte(chip, port + ichdev->roff_sr);
778 	civ = igetbyte(chip, port + ICH_REG_OFF_CIV);
779 	if (!(status & ICH_BCIS)) {
780 		step = 0;
781 	} else if (civ == ichdev->civ) {
782 		// snd_printd("civ same %d\n", civ);
783 		step = 1;
784 		ichdev->civ++;
785 		ichdev->civ &= ICH_REG_LVI_MASK;
786 	} else {
787 		step = civ - ichdev->civ;
788 		if (step < 0)
789 			step += ICH_REG_LVI_MASK + 1;
790 		// if (step != 1)
791 		//	snd_printd("step = %d, %d -> %d\n", step, ichdev->civ, civ);
792 		ichdev->civ = civ;
793 	}
794 
795 	ichdev->position += step * ichdev->fragsize1;
796 	if (! chip->in_measurement)
797 		ichdev->position %= ichdev->size;
798 	ichdev->lvi += step;
799 	ichdev->lvi &= ICH_REG_LVI_MASK;
800 	iputbyte(chip, port + ICH_REG_OFF_LVI, ichdev->lvi);
801 	for (i = 0; i < step; i++) {
802 		ichdev->lvi_frag++;
803 		ichdev->lvi_frag %= ichdev->frags;
804 		ichdev->bdbar[ichdev->lvi * 2] = cpu_to_le32(ichdev->physbuf + ichdev->lvi_frag * ichdev->fragsize1);
805 	// printk("new: bdbar[%i] = 0x%x [0x%x], prefetch = %i, all = 0x%x, 0x%x\n", ichdev->lvi * 2, ichdev->bdbar[ichdev->lvi * 2], ichdev->bdbar[ichdev->lvi * 2 + 1], inb(ICH_REG_OFF_PIV + port), inl(port + 4), inb(port + ICH_REG_OFF_CR));
806 		if (--ichdev->ack == 0) {
807 			ichdev->ack = ichdev->ack_reload;
808 			ack = 1;
809 		}
810 	}
811 	spin_unlock(&chip->reg_lock);
812 	if (ack && ichdev->substream) {
813 		snd_pcm_period_elapsed(ichdev->substream);
814 	}
815 	iputbyte(chip, port + ichdev->roff_sr,
816 		 status & (ICH_FIFOE | ICH_BCIS | ICH_LVBCI));
817 }
818 
819 static irqreturn_t snd_intel8x0_interrupt(int irq, void *dev_id, struct pt_regs *regs)
820 {
821 	intel8x0_t *chip = dev_id;
822 	ichdev_t *ichdev;
823 	unsigned int status;
824 	unsigned int i;
825 
826 	status = igetdword(chip, chip->int_sta_reg);
827 	if (status == 0xffffffff)	/* we are not yet resumed */
828 		return IRQ_NONE;
829 
830 	if ((status & chip->int_sta_mask) == 0) {
831 		if (status) {
832 			/* ack */
833 			iputdword(chip, chip->int_sta_reg, status);
834 			if (! chip->buggy_irq)
835 				status = 0;
836 		}
837 		return IRQ_RETVAL(status);
838 	}
839 
840 	for (i = 0; i < chip->bdbars_count; i++) {
841 		ichdev = &chip->ichd[i];
842 		if (status & ichdev->int_sta_mask)
843 			snd_intel8x0_update(chip, ichdev);
844 	}
845 
846 	/* ack them */
847 	iputdword(chip, chip->int_sta_reg, status & chip->int_sta_mask);
848 
849 	return IRQ_HANDLED;
850 }
851 
852 /*
853  *  PCM part
854  */
855 
856 static int snd_intel8x0_pcm_trigger(snd_pcm_substream_t *substream, int cmd)
857 {
858 	intel8x0_t *chip = snd_pcm_substream_chip(substream);
859 	ichdev_t *ichdev = get_ichdev(substream);
860 	unsigned char val = 0;
861 	unsigned long port = ichdev->reg_offset;
862 
863 	switch (cmd) {
864 	case SNDRV_PCM_TRIGGER_START:
865 	case SNDRV_PCM_TRIGGER_RESUME:
866 		val = ICH_IOCE | ICH_STARTBM;
867 		break;
868 	case SNDRV_PCM_TRIGGER_STOP:
869 	case SNDRV_PCM_TRIGGER_SUSPEND:
870 		val = 0;
871 		break;
872 	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
873 		val = ICH_IOCE;
874 		break;
875 	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
876 		val = ICH_IOCE | ICH_STARTBM;
877 		break;
878 	default:
879 		return -EINVAL;
880 	}
881 	iputbyte(chip, port + ICH_REG_OFF_CR, val);
882 	if (cmd == SNDRV_PCM_TRIGGER_STOP) {
883 		/* wait until DMA stopped */
884 		while (!(igetbyte(chip, port + ichdev->roff_sr) & ICH_DCH)) ;
885 		/* reset whole DMA things */
886 		iputbyte(chip, port + ICH_REG_OFF_CR, ICH_RESETREGS);
887 	}
888 	return 0;
889 }
890 
891 static int snd_intel8x0_ali_trigger(snd_pcm_substream_t *substream, int cmd)
892 {
893 	intel8x0_t *chip = snd_pcm_substream_chip(substream);
894 	ichdev_t *ichdev = get_ichdev(substream);
895 	unsigned long port = ichdev->reg_offset;
896 	static int fiforeg[] = { ICHREG(ALI_FIFOCR1), ICHREG(ALI_FIFOCR2), ICHREG(ALI_FIFOCR3) };
897 	unsigned int val, fifo;
898 
899 	val = igetdword(chip, ICHREG(ALI_DMACR));
900 	switch (cmd) {
901 	case SNDRV_PCM_TRIGGER_START:
902 	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
903 	case SNDRV_PCM_TRIGGER_RESUME:
904 		if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
905 			/* clear FIFO for synchronization of channels */
906 			fifo = igetdword(chip, fiforeg[ichdev->ali_slot / 4]);
907 			fifo &= ~(0xff << (ichdev->ali_slot % 4));
908 			fifo |= 0x83 << (ichdev->ali_slot % 4);
909 			iputdword(chip, fiforeg[ichdev->ali_slot / 4], fifo);
910 		}
911 		iputbyte(chip, port + ICH_REG_OFF_CR, ICH_IOCE);
912 		val &= ~(1 << (ichdev->ali_slot + 16)); /* clear PAUSE flag */
913 		iputdword(chip, ICHREG(ALI_DMACR), val | (1 << ichdev->ali_slot)); /* start DMA */
914 		break;
915 	case SNDRV_PCM_TRIGGER_STOP:
916 	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
917 	case SNDRV_PCM_TRIGGER_SUSPEND:
918 		iputdword(chip, ICHREG(ALI_DMACR), val | (1 << (ichdev->ali_slot + 16))); /* pause */
919 		iputbyte(chip, port + ICH_REG_OFF_CR, 0);
920 		while (igetbyte(chip, port + ICH_REG_OFF_CR))
921 			;
922 		if (cmd == SNDRV_PCM_TRIGGER_PAUSE_PUSH)
923 			break;
924 		/* reset whole DMA things */
925 		iputbyte(chip, port + ICH_REG_OFF_CR, ICH_RESETREGS);
926 		/* clear interrupts */
927 		iputbyte(chip, port + ICH_REG_OFF_SR, igetbyte(chip, port + ICH_REG_OFF_SR) | 0x1e);
928 		iputdword(chip, ICHREG(ALI_INTERRUPTSR),
929 			  igetdword(chip, ICHREG(ALI_INTERRUPTSR)) & ichdev->int_sta_mask);
930 		break;
931 	default:
932 		return -EINVAL;
933 	}
934 	return 0;
935 }
936 
937 static int snd_intel8x0_hw_params(snd_pcm_substream_t * substream,
938 				  snd_pcm_hw_params_t * hw_params)
939 {
940 	intel8x0_t *chip = snd_pcm_substream_chip(substream);
941 	ichdev_t *ichdev = get_ichdev(substream);
942 	snd_pcm_runtime_t *runtime = substream->runtime;
943 	int dbl = params_rate(hw_params) > 48000;
944 	int err;
945 
946 	if (chip->fix_nocache && ichdev->page_attr_changed) {
947 		fill_nocache(runtime->dma_area, runtime->dma_bytes, 0); /* clear */
948 		ichdev->page_attr_changed = 0;
949 	}
950 	err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
951 	if (err < 0)
952 		return err;
953 	if (chip->fix_nocache) {
954 		if (runtime->dma_area && ! ichdev->page_attr_changed) {
955 			fill_nocache(runtime->dma_area, runtime->dma_bytes, 1);
956 			ichdev->page_attr_changed = 1;
957 		}
958 	}
959 	if (ichdev->pcm_open_flag) {
960 		snd_ac97_pcm_close(ichdev->pcm);
961 		ichdev->pcm_open_flag = 0;
962 	}
963 	err = snd_ac97_pcm_open(ichdev->pcm, params_rate(hw_params),
964 				params_channels(hw_params),
965 				ichdev->pcm->r[dbl].slots);
966 	if (err >= 0) {
967 		ichdev->pcm_open_flag = 1;
968 		/* Force SPDIF setting */
969 		if (ichdev->ichd == ICHD_PCMOUT && chip->spdif_idx < 0)
970 			snd_ac97_set_rate(ichdev->pcm->r[0].codec[0], AC97_SPDIF, params_rate(hw_params));
971 	}
972 	return err;
973 }
974 
975 static int snd_intel8x0_hw_free(snd_pcm_substream_t * substream)
976 {
977 	intel8x0_t *chip = snd_pcm_substream_chip(substream);
978 	ichdev_t *ichdev = get_ichdev(substream);
979 
980 	if (ichdev->pcm_open_flag) {
981 		snd_ac97_pcm_close(ichdev->pcm);
982 		ichdev->pcm_open_flag = 0;
983 	}
984 	if (chip->fix_nocache && ichdev->page_attr_changed) {
985 		fill_nocache(substream->runtime->dma_area, substream->runtime->dma_bytes, 0);
986 		ichdev->page_attr_changed = 0;
987 	}
988 	return snd_pcm_lib_free_pages(substream);
989 }
990 
991 static void snd_intel8x0_setup_pcm_out(intel8x0_t *chip,
992 				       snd_pcm_runtime_t *runtime)
993 {
994 	unsigned int cnt;
995 	int dbl = runtime->rate > 48000;
996 	switch (chip->device_type) {
997 	case DEVICE_ALI:
998 		cnt = igetdword(chip, ICHREG(ALI_SCR));
999 		cnt &= ~ICH_ALI_SC_PCM_246_MASK;
1000 		if (runtime->channels == 4 || dbl)
1001 			cnt |= ICH_ALI_SC_PCM_4;
1002 		else if (runtime->channels == 6)
1003 			cnt |= ICH_ALI_SC_PCM_6;
1004 		iputdword(chip, ICHREG(ALI_SCR), cnt);
1005 		break;
1006 	case DEVICE_SIS:
1007 		cnt = igetdword(chip, ICHREG(GLOB_CNT));
1008 		cnt &= ~ICH_SIS_PCM_246_MASK;
1009 		if (runtime->channels == 4 || dbl)
1010 			cnt |= ICH_SIS_PCM_4;
1011 		else if (runtime->channels == 6)
1012 			cnt |= ICH_SIS_PCM_6;
1013 		iputdword(chip, ICHREG(GLOB_CNT), cnt);
1014 		break;
1015 	default:
1016 		cnt = igetdword(chip, ICHREG(GLOB_CNT));
1017 		cnt &= ~(ICH_PCM_246_MASK | ICH_PCM_20BIT);
1018 		if (runtime->channels == 4 || dbl)
1019 			cnt |= ICH_PCM_4;
1020 		else if (runtime->channels == 6)
1021 			cnt |= ICH_PCM_6;
1022 		if (chip->device_type == DEVICE_NFORCE) {
1023 			/* reset to 2ch once to keep the 6 channel data in alignment,
1024 			 * to start from Front Left always
1025 			 */
1026 			if (cnt & ICH_PCM_246_MASK) {
1027 				iputdword(chip, ICHREG(GLOB_CNT), cnt & ~ICH_PCM_246_MASK);
1028 				spin_unlock_irq(&chip->reg_lock);
1029 				msleep(50); /* grrr... */
1030 				spin_lock_irq(&chip->reg_lock);
1031 			}
1032 		} else if (chip->device_type == DEVICE_INTEL_ICH4) {
1033 			if (runtime->sample_bits > 16)
1034 				cnt |= ICH_PCM_20BIT;
1035 		}
1036 		iputdword(chip, ICHREG(GLOB_CNT), cnt);
1037 		break;
1038 	}
1039 }
1040 
1041 static int snd_intel8x0_pcm_prepare(snd_pcm_substream_t * substream)
1042 {
1043 	intel8x0_t *chip = snd_pcm_substream_chip(substream);
1044 	snd_pcm_runtime_t *runtime = substream->runtime;
1045 	ichdev_t *ichdev = get_ichdev(substream);
1046 
1047 	ichdev->physbuf = runtime->dma_addr;
1048 	ichdev->size = snd_pcm_lib_buffer_bytes(substream);
1049 	ichdev->fragsize = snd_pcm_lib_period_bytes(substream);
1050 	spin_lock_irq(&chip->reg_lock);
1051 	if (ichdev->ichd == ICHD_PCMOUT) {
1052 		snd_intel8x0_setup_pcm_out(chip, runtime);
1053 		if (chip->device_type == DEVICE_INTEL_ICH4) {
1054 			ichdev->pos_shift = (runtime->sample_bits > 16) ? 2 : 1;
1055 		}
1056 	}
1057 	snd_intel8x0_setup_periods(chip, ichdev);
1058 	spin_unlock_irq(&chip->reg_lock);
1059 	return 0;
1060 }
1061 
1062 static snd_pcm_uframes_t snd_intel8x0_pcm_pointer(snd_pcm_substream_t * substream)
1063 {
1064 	intel8x0_t *chip = snd_pcm_substream_chip(substream);
1065 	ichdev_t *ichdev = get_ichdev(substream);
1066 	size_t ptr1, ptr;
1067 	int civ, timeout = 100;
1068 	unsigned int position;
1069 
1070 	spin_lock(&chip->reg_lock);
1071 	do {
1072 		civ = igetbyte(chip, ichdev->reg_offset + ICH_REG_OFF_CIV);
1073 		ptr1 = igetword(chip, ichdev->reg_offset + ichdev->roff_picb);
1074 		position = ichdev->position;
1075 		if (ptr1 == 0) {
1076 			udelay(10);
1077 			continue;
1078 		}
1079 		if (civ == igetbyte(chip, ichdev->reg_offset + ICH_REG_OFF_CIV) &&
1080 		    ptr1 == igetword(chip, ichdev->reg_offset + ichdev->roff_picb))
1081 			break;
1082 	} while (timeout--);
1083 	ptr1 <<= ichdev->pos_shift;
1084 	ptr = ichdev->fragsize1 - ptr1;
1085 	ptr += position;
1086 	spin_unlock(&chip->reg_lock);
1087 	if (ptr >= ichdev->size)
1088 		return 0;
1089 	return bytes_to_frames(substream->runtime, ptr);
1090 }
1091 
1092 static snd_pcm_hardware_t snd_intel8x0_stream =
1093 {
1094 	.info =			(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1095 				 SNDRV_PCM_INFO_BLOCK_TRANSFER |
1096 				 SNDRV_PCM_INFO_MMAP_VALID |
1097 				 SNDRV_PCM_INFO_PAUSE |
1098 				 SNDRV_PCM_INFO_RESUME),
1099 	.formats =		SNDRV_PCM_FMTBIT_S16_LE,
1100 	.rates =		SNDRV_PCM_RATE_48000,
1101 	.rate_min =		48000,
1102 	.rate_max =		48000,
1103 	.channels_min =		2,
1104 	.channels_max =		2,
1105 	.buffer_bytes_max =	128 * 1024,
1106 	.period_bytes_min =	32,
1107 	.period_bytes_max =	128 * 1024,
1108 	.periods_min =		1,
1109 	.periods_max =		1024,
1110 	.fifo_size =		0,
1111 };
1112 
1113 static unsigned int channels4[] = {
1114 	2, 4,
1115 };
1116 
1117 static snd_pcm_hw_constraint_list_t hw_constraints_channels4 = {
1118 	.count = ARRAY_SIZE(channels4),
1119 	.list = channels4,
1120 	.mask = 0,
1121 };
1122 
1123 static unsigned int channels6[] = {
1124 	2, 4, 6,
1125 };
1126 
1127 static snd_pcm_hw_constraint_list_t hw_constraints_channels6 = {
1128 	.count = ARRAY_SIZE(channels6),
1129 	.list = channels6,
1130 	.mask = 0,
1131 };
1132 
1133 static int snd_intel8x0_pcm_open(snd_pcm_substream_t * substream, ichdev_t *ichdev)
1134 {
1135 	intel8x0_t *chip = snd_pcm_substream_chip(substream);
1136 	snd_pcm_runtime_t *runtime = substream->runtime;
1137 	int err;
1138 
1139 	ichdev->substream = substream;
1140 	runtime->hw = snd_intel8x0_stream;
1141 	runtime->hw.rates = ichdev->pcm->rates;
1142 	snd_pcm_limit_hw_rates(runtime);
1143 	if (chip->device_type == DEVICE_SIS) {
1144 		runtime->hw.buffer_bytes_max = 64*1024;
1145 		runtime->hw.period_bytes_max = 64*1024;
1146 	}
1147 	if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
1148 		return err;
1149 	runtime->private_data = ichdev;
1150 	return 0;
1151 }
1152 
1153 static int snd_intel8x0_playback_open(snd_pcm_substream_t * substream)
1154 {
1155 	intel8x0_t *chip = snd_pcm_substream_chip(substream);
1156 	snd_pcm_runtime_t *runtime = substream->runtime;
1157 	int err;
1158 
1159 	err = snd_intel8x0_pcm_open(substream, &chip->ichd[ICHD_PCMOUT]);
1160 	if (err < 0)
1161 		return err;
1162 
1163 	if (chip->multi6) {
1164 		runtime->hw.channels_max = 6;
1165 		snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS, &hw_constraints_channels6);
1166 	} else if (chip->multi4) {
1167 		runtime->hw.channels_max = 4;
1168 		snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS, &hw_constraints_channels4);
1169 	}
1170 	if (chip->dra) {
1171 		snd_ac97_pcm_double_rate_rules(runtime);
1172 	}
1173 	if (chip->smp20bit) {
1174 		runtime->hw.formats |= SNDRV_PCM_FMTBIT_S32_LE;
1175 		snd_pcm_hw_constraint_msbits(runtime, 0, 32, 20);
1176 	}
1177 	return 0;
1178 }
1179 
1180 static int snd_intel8x0_playback_close(snd_pcm_substream_t * substream)
1181 {
1182 	intel8x0_t *chip = snd_pcm_substream_chip(substream);
1183 
1184 	chip->ichd[ICHD_PCMOUT].substream = NULL;
1185 	return 0;
1186 }
1187 
1188 static int snd_intel8x0_capture_open(snd_pcm_substream_t * substream)
1189 {
1190 	intel8x0_t *chip = snd_pcm_substream_chip(substream);
1191 
1192 	return snd_intel8x0_pcm_open(substream, &chip->ichd[ICHD_PCMIN]);
1193 }
1194 
1195 static int snd_intel8x0_capture_close(snd_pcm_substream_t * substream)
1196 {
1197 	intel8x0_t *chip = snd_pcm_substream_chip(substream);
1198 
1199 	chip->ichd[ICHD_PCMIN].substream = NULL;
1200 	return 0;
1201 }
1202 
1203 static int snd_intel8x0_mic_open(snd_pcm_substream_t * substream)
1204 {
1205 	intel8x0_t *chip = snd_pcm_substream_chip(substream);
1206 
1207 	return snd_intel8x0_pcm_open(substream, &chip->ichd[ICHD_MIC]);
1208 }
1209 
1210 static int snd_intel8x0_mic_close(snd_pcm_substream_t * substream)
1211 {
1212 	intel8x0_t *chip = snd_pcm_substream_chip(substream);
1213 
1214 	chip->ichd[ICHD_MIC].substream = NULL;
1215 	return 0;
1216 }
1217 
1218 static int snd_intel8x0_mic2_open(snd_pcm_substream_t * substream)
1219 {
1220 	intel8x0_t *chip = snd_pcm_substream_chip(substream);
1221 
1222 	return snd_intel8x0_pcm_open(substream, &chip->ichd[ICHD_MIC2]);
1223 }
1224 
1225 static int snd_intel8x0_mic2_close(snd_pcm_substream_t * substream)
1226 {
1227 	intel8x0_t *chip = snd_pcm_substream_chip(substream);
1228 
1229 	chip->ichd[ICHD_MIC2].substream = NULL;
1230 	return 0;
1231 }
1232 
1233 static int snd_intel8x0_capture2_open(snd_pcm_substream_t * substream)
1234 {
1235 	intel8x0_t *chip = snd_pcm_substream_chip(substream);
1236 
1237 	return snd_intel8x0_pcm_open(substream, &chip->ichd[ICHD_PCM2IN]);
1238 }
1239 
1240 static int snd_intel8x0_capture2_close(snd_pcm_substream_t * substream)
1241 {
1242 	intel8x0_t *chip = snd_pcm_substream_chip(substream);
1243 
1244 	chip->ichd[ICHD_PCM2IN].substream = NULL;
1245 	return 0;
1246 }
1247 
1248 static int snd_intel8x0_spdif_open(snd_pcm_substream_t * substream)
1249 {
1250 	intel8x0_t *chip = snd_pcm_substream_chip(substream);
1251 	int idx = chip->device_type == DEVICE_NFORCE ? NVD_SPBAR : ICHD_SPBAR;
1252 
1253 	return snd_intel8x0_pcm_open(substream, &chip->ichd[idx]);
1254 }
1255 
1256 static int snd_intel8x0_spdif_close(snd_pcm_substream_t * substream)
1257 {
1258 	intel8x0_t *chip = snd_pcm_substream_chip(substream);
1259 	int idx = chip->device_type == DEVICE_NFORCE ? NVD_SPBAR : ICHD_SPBAR;
1260 
1261 	chip->ichd[idx].substream = NULL;
1262 	return 0;
1263 }
1264 
1265 static int snd_intel8x0_ali_ac97spdifout_open(snd_pcm_substream_t * substream)
1266 {
1267 	intel8x0_t *chip = snd_pcm_substream_chip(substream);
1268 	unsigned int val;
1269 
1270 	spin_lock_irq(&chip->reg_lock);
1271 	val = igetdword(chip, ICHREG(ALI_INTERFACECR));
1272 	val |= ICH_ALI_IF_AC97SP;
1273 	iputdword(chip, ICHREG(ALI_INTERFACECR), val);
1274 	/* also needs to set ALI_SC_CODEC_SPDF correctly */
1275 	spin_unlock_irq(&chip->reg_lock);
1276 
1277 	return snd_intel8x0_pcm_open(substream, &chip->ichd[ALID_AC97SPDIFOUT]);
1278 }
1279 
1280 static int snd_intel8x0_ali_ac97spdifout_close(snd_pcm_substream_t * substream)
1281 {
1282 	intel8x0_t *chip = snd_pcm_substream_chip(substream);
1283 	unsigned int val;
1284 
1285 	chip->ichd[ALID_AC97SPDIFOUT].substream = NULL;
1286 	spin_lock_irq(&chip->reg_lock);
1287 	val = igetdword(chip, ICHREG(ALI_INTERFACECR));
1288 	val &= ~ICH_ALI_IF_AC97SP;
1289 	iputdword(chip, ICHREG(ALI_INTERFACECR), val);
1290 	spin_unlock_irq(&chip->reg_lock);
1291 
1292 	return 0;
1293 }
1294 
1295 static int snd_intel8x0_ali_spdifin_open(snd_pcm_substream_t * substream)
1296 {
1297 	intel8x0_t *chip = snd_pcm_substream_chip(substream);
1298 
1299 	return snd_intel8x0_pcm_open(substream, &chip->ichd[ALID_SPDIFIN]);
1300 }
1301 
1302 static int snd_intel8x0_ali_spdifin_close(snd_pcm_substream_t * substream)
1303 {
1304 	intel8x0_t *chip = snd_pcm_substream_chip(substream);
1305 
1306 	chip->ichd[ALID_SPDIFIN].substream = NULL;
1307 	return 0;
1308 }
1309 
1310 #if 0 // NYI
1311 static int snd_intel8x0_ali_spdifout_open(snd_pcm_substream_t * substream)
1312 {
1313 	intel8x0_t *chip = snd_pcm_substream_chip(substream);
1314 
1315 	return snd_intel8x0_pcm_open(substream, &chip->ichd[ALID_SPDIFOUT]);
1316 }
1317 
1318 static int snd_intel8x0_ali_spdifout_close(snd_pcm_substream_t * substream)
1319 {
1320 	intel8x0_t *chip = snd_pcm_substream_chip(substream);
1321 
1322 	chip->ichd[ALID_SPDIFOUT].substream = NULL;
1323 	return 0;
1324 }
1325 #endif
1326 
1327 static snd_pcm_ops_t snd_intel8x0_playback_ops = {
1328 	.open =		snd_intel8x0_playback_open,
1329 	.close =	snd_intel8x0_playback_close,
1330 	.ioctl =	snd_pcm_lib_ioctl,
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 
1338 static snd_pcm_ops_t snd_intel8x0_capture_ops = {
1339 	.open =		snd_intel8x0_capture_open,
1340 	.close =	snd_intel8x0_capture_close,
1341 	.ioctl =	snd_pcm_lib_ioctl,
1342 	.hw_params =	snd_intel8x0_hw_params,
1343 	.hw_free =	snd_intel8x0_hw_free,
1344 	.prepare =	snd_intel8x0_pcm_prepare,
1345 	.trigger =	snd_intel8x0_pcm_trigger,
1346 	.pointer =	snd_intel8x0_pcm_pointer,
1347 };
1348 
1349 static snd_pcm_ops_t snd_intel8x0_capture_mic_ops = {
1350 	.open =		snd_intel8x0_mic_open,
1351 	.close =	snd_intel8x0_mic_close,
1352 	.ioctl =	snd_pcm_lib_ioctl,
1353 	.hw_params =	snd_intel8x0_hw_params,
1354 	.hw_free =	snd_intel8x0_hw_free,
1355 	.prepare =	snd_intel8x0_pcm_prepare,
1356 	.trigger =	snd_intel8x0_pcm_trigger,
1357 	.pointer =	snd_intel8x0_pcm_pointer,
1358 };
1359 
1360 static snd_pcm_ops_t snd_intel8x0_capture_mic2_ops = {
1361 	.open =		snd_intel8x0_mic2_open,
1362 	.close =	snd_intel8x0_mic2_close,
1363 	.ioctl =	snd_pcm_lib_ioctl,
1364 	.hw_params =	snd_intel8x0_hw_params,
1365 	.hw_free =	snd_intel8x0_hw_free,
1366 	.prepare =	snd_intel8x0_pcm_prepare,
1367 	.trigger =	snd_intel8x0_pcm_trigger,
1368 	.pointer =	snd_intel8x0_pcm_pointer,
1369 };
1370 
1371 static snd_pcm_ops_t snd_intel8x0_capture2_ops = {
1372 	.open =		snd_intel8x0_capture2_open,
1373 	.close =	snd_intel8x0_capture2_close,
1374 	.ioctl =	snd_pcm_lib_ioctl,
1375 	.hw_params =	snd_intel8x0_hw_params,
1376 	.hw_free =	snd_intel8x0_hw_free,
1377 	.prepare =	snd_intel8x0_pcm_prepare,
1378 	.trigger =	snd_intel8x0_pcm_trigger,
1379 	.pointer =	snd_intel8x0_pcm_pointer,
1380 };
1381 
1382 static snd_pcm_ops_t snd_intel8x0_spdif_ops = {
1383 	.open =		snd_intel8x0_spdif_open,
1384 	.close =	snd_intel8x0_spdif_close,
1385 	.ioctl =	snd_pcm_lib_ioctl,
1386 	.hw_params =	snd_intel8x0_hw_params,
1387 	.hw_free =	snd_intel8x0_hw_free,
1388 	.prepare =	snd_intel8x0_pcm_prepare,
1389 	.trigger =	snd_intel8x0_pcm_trigger,
1390 	.pointer =	snd_intel8x0_pcm_pointer,
1391 };
1392 
1393 static snd_pcm_ops_t snd_intel8x0_ali_playback_ops = {
1394 	.open =		snd_intel8x0_playback_open,
1395 	.close =	snd_intel8x0_playback_close,
1396 	.ioctl =	snd_pcm_lib_ioctl,
1397 	.hw_params =	snd_intel8x0_hw_params,
1398 	.hw_free =	snd_intel8x0_hw_free,
1399 	.prepare =	snd_intel8x0_pcm_prepare,
1400 	.trigger =	snd_intel8x0_ali_trigger,
1401 	.pointer =	snd_intel8x0_pcm_pointer,
1402 };
1403 
1404 static snd_pcm_ops_t snd_intel8x0_ali_capture_ops = {
1405 	.open =		snd_intel8x0_capture_open,
1406 	.close =	snd_intel8x0_capture_close,
1407 	.ioctl =	snd_pcm_lib_ioctl,
1408 	.hw_params =	snd_intel8x0_hw_params,
1409 	.hw_free =	snd_intel8x0_hw_free,
1410 	.prepare =	snd_intel8x0_pcm_prepare,
1411 	.trigger =	snd_intel8x0_ali_trigger,
1412 	.pointer =	snd_intel8x0_pcm_pointer,
1413 };
1414 
1415 static snd_pcm_ops_t snd_intel8x0_ali_capture_mic_ops = {
1416 	.open =		snd_intel8x0_mic_open,
1417 	.close =	snd_intel8x0_mic_close,
1418 	.ioctl =	snd_pcm_lib_ioctl,
1419 	.hw_params =	snd_intel8x0_hw_params,
1420 	.hw_free =	snd_intel8x0_hw_free,
1421 	.prepare =	snd_intel8x0_pcm_prepare,
1422 	.trigger =	snd_intel8x0_ali_trigger,
1423 	.pointer =	snd_intel8x0_pcm_pointer,
1424 };
1425 
1426 static snd_pcm_ops_t snd_intel8x0_ali_ac97spdifout_ops = {
1427 	.open =		snd_intel8x0_ali_ac97spdifout_open,
1428 	.close =	snd_intel8x0_ali_ac97spdifout_close,
1429 	.ioctl =	snd_pcm_lib_ioctl,
1430 	.hw_params =	snd_intel8x0_hw_params,
1431 	.hw_free =	snd_intel8x0_hw_free,
1432 	.prepare =	snd_intel8x0_pcm_prepare,
1433 	.trigger =	snd_intel8x0_ali_trigger,
1434 	.pointer =	snd_intel8x0_pcm_pointer,
1435 };
1436 
1437 static snd_pcm_ops_t snd_intel8x0_ali_spdifin_ops = {
1438 	.open =		snd_intel8x0_ali_spdifin_open,
1439 	.close =	snd_intel8x0_ali_spdifin_close,
1440 	.ioctl =	snd_pcm_lib_ioctl,
1441 	.hw_params =	snd_intel8x0_hw_params,
1442 	.hw_free =	snd_intel8x0_hw_free,
1443 	.prepare =	snd_intel8x0_pcm_prepare,
1444 	.trigger =	snd_intel8x0_pcm_trigger,
1445 	.pointer =	snd_intel8x0_pcm_pointer,
1446 };
1447 
1448 #if 0 // NYI
1449 static snd_pcm_ops_t snd_intel8x0_ali_spdifout_ops = {
1450 	.open =		snd_intel8x0_ali_spdifout_open,
1451 	.close =	snd_intel8x0_ali_spdifout_close,
1452 	.ioctl =	snd_pcm_lib_ioctl,
1453 	.hw_params =	snd_intel8x0_hw_params,
1454 	.hw_free =	snd_intel8x0_hw_free,
1455 	.prepare =	snd_intel8x0_pcm_prepare,
1456 	.trigger =	snd_intel8x0_pcm_trigger,
1457 	.pointer =	snd_intel8x0_pcm_pointer,
1458 };
1459 #endif // NYI
1460 
1461 struct ich_pcm_table {
1462 	char *suffix;
1463 	snd_pcm_ops_t *playback_ops;
1464 	snd_pcm_ops_t *capture_ops;
1465 	size_t prealloc_size;
1466 	size_t prealloc_max_size;
1467 	int ac97_idx;
1468 };
1469 
1470 static int __devinit snd_intel8x0_pcm1(intel8x0_t *chip, int device, struct ich_pcm_table *rec)
1471 {
1472 	snd_pcm_t *pcm;
1473 	int err;
1474 	char name[32];
1475 
1476 	if (rec->suffix)
1477 		sprintf(name, "Intel ICH - %s", rec->suffix);
1478 	else
1479 		strcpy(name, "Intel ICH");
1480 	err = snd_pcm_new(chip->card, name, device,
1481 			  rec->playback_ops ? 1 : 0,
1482 			  rec->capture_ops ? 1 : 0, &pcm);
1483 	if (err < 0)
1484 		return err;
1485 
1486 	if (rec->playback_ops)
1487 		snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, rec->playback_ops);
1488 	if (rec->capture_ops)
1489 		snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, rec->capture_ops);
1490 
1491 	pcm->private_data = chip;
1492 	pcm->info_flags = 0;
1493 	if (rec->suffix)
1494 		sprintf(pcm->name, "%s - %s", chip->card->shortname, rec->suffix);
1495 	else
1496 		strcpy(pcm->name, chip->card->shortname);
1497 	chip->pcm[device] = pcm;
1498 
1499 	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(chip->pci),
1500 					      rec->prealloc_size, rec->prealloc_max_size);
1501 
1502 	return 0;
1503 }
1504 
1505 static struct ich_pcm_table intel_pcms[] __devinitdata = {
1506 	{
1507 		.playback_ops = &snd_intel8x0_playback_ops,
1508 		.capture_ops = &snd_intel8x0_capture_ops,
1509 		.prealloc_size = 64 * 1024,
1510 		.prealloc_max_size = 128 * 1024,
1511 	},
1512 	{
1513 		.suffix = "MIC ADC",
1514 		.capture_ops = &snd_intel8x0_capture_mic_ops,
1515 		.prealloc_size = 0,
1516 		.prealloc_max_size = 128 * 1024,
1517 		.ac97_idx = ICHD_MIC,
1518 	},
1519 	{
1520 		.suffix = "MIC2 ADC",
1521 		.capture_ops = &snd_intel8x0_capture_mic2_ops,
1522 		.prealloc_size = 0,
1523 		.prealloc_max_size = 128 * 1024,
1524 		.ac97_idx = ICHD_MIC2,
1525 	},
1526 	{
1527 		.suffix = "ADC2",
1528 		.capture_ops = &snd_intel8x0_capture2_ops,
1529 		.prealloc_size = 0,
1530 		.prealloc_max_size = 128 * 1024,
1531 		.ac97_idx = ICHD_PCM2IN,
1532 	},
1533 	{
1534 		.suffix = "IEC958",
1535 		.playback_ops = &snd_intel8x0_spdif_ops,
1536 		.prealloc_size = 64 * 1024,
1537 		.prealloc_max_size = 128 * 1024,
1538 		.ac97_idx = ICHD_SPBAR,
1539 	},
1540 };
1541 
1542 static struct ich_pcm_table nforce_pcms[] __devinitdata = {
1543 	{
1544 		.playback_ops = &snd_intel8x0_playback_ops,
1545 		.capture_ops = &snd_intel8x0_capture_ops,
1546 		.prealloc_size = 64 * 1024,
1547 		.prealloc_max_size = 128 * 1024,
1548 	},
1549 	{
1550 		.suffix = "MIC ADC",
1551 		.capture_ops = &snd_intel8x0_capture_mic_ops,
1552 		.prealloc_size = 0,
1553 		.prealloc_max_size = 128 * 1024,
1554 		.ac97_idx = NVD_MIC,
1555 	},
1556 	{
1557 		.suffix = "IEC958",
1558 		.playback_ops = &snd_intel8x0_spdif_ops,
1559 		.prealloc_size = 64 * 1024,
1560 		.prealloc_max_size = 128 * 1024,
1561 		.ac97_idx = NVD_SPBAR,
1562 	},
1563 };
1564 
1565 static struct ich_pcm_table ali_pcms[] __devinitdata = {
1566 	{
1567 		.playback_ops = &snd_intel8x0_ali_playback_ops,
1568 		.capture_ops = &snd_intel8x0_ali_capture_ops,
1569 		.prealloc_size = 64 * 1024,
1570 		.prealloc_max_size = 128 * 1024,
1571 	},
1572 	{
1573 		.suffix = "MIC ADC",
1574 		.capture_ops = &snd_intel8x0_ali_capture_mic_ops,
1575 		.prealloc_size = 0,
1576 		.prealloc_max_size = 128 * 1024,
1577 		.ac97_idx = ALID_MIC,
1578 	},
1579 	{
1580 		.suffix = "IEC958",
1581 		.playback_ops = &snd_intel8x0_ali_ac97spdifout_ops,
1582 		.capture_ops = &snd_intel8x0_ali_spdifin_ops,
1583 		.prealloc_size = 64 * 1024,
1584 		.prealloc_max_size = 128 * 1024,
1585 		.ac97_idx = ALID_AC97SPDIFOUT,
1586 	},
1587 #if 0 // NYI
1588 	{
1589 		.suffix = "HW IEC958",
1590 		.playback_ops = &snd_intel8x0_ali_spdifout_ops,
1591 		.prealloc_size = 64 * 1024,
1592 		.prealloc_max_size = 128 * 1024,
1593 	},
1594 #endif
1595 };
1596 
1597 static int __devinit snd_intel8x0_pcm(intel8x0_t *chip)
1598 {
1599 	int i, tblsize, device, err;
1600 	struct ich_pcm_table *tbl, *rec;
1601 
1602 	switch (chip->device_type) {
1603 	case DEVICE_INTEL_ICH4:
1604 		tbl = intel_pcms;
1605 		tblsize = ARRAY_SIZE(intel_pcms);
1606 		break;
1607 	case DEVICE_NFORCE:
1608 		tbl = nforce_pcms;
1609 		tblsize = ARRAY_SIZE(nforce_pcms);
1610 		break;
1611 	case DEVICE_ALI:
1612 		tbl = ali_pcms;
1613 		tblsize = ARRAY_SIZE(ali_pcms);
1614 		break;
1615 	default:
1616 		tbl = intel_pcms;
1617 		tblsize = 2;
1618 		break;
1619 	}
1620 
1621 	device = 0;
1622 	for (i = 0; i < tblsize; i++) {
1623 		rec = tbl + i;
1624 		if (i > 0 && rec->ac97_idx) {
1625 			/* activate PCM only when associated AC'97 codec */
1626 			if (! chip->ichd[rec->ac97_idx].pcm)
1627 				continue;
1628 		}
1629 		err = snd_intel8x0_pcm1(chip, device, rec);
1630 		if (err < 0)
1631 			return err;
1632 		device++;
1633 	}
1634 
1635 	chip->pcm_devs = device;
1636 	return 0;
1637 }
1638 
1639 
1640 /*
1641  *  Mixer part
1642  */
1643 
1644 static void snd_intel8x0_mixer_free_ac97_bus(ac97_bus_t *bus)
1645 {
1646 	intel8x0_t *chip = bus->private_data;
1647 	chip->ac97_bus = NULL;
1648 }
1649 
1650 static void snd_intel8x0_mixer_free_ac97(ac97_t *ac97)
1651 {
1652 	intel8x0_t *chip = ac97->private_data;
1653 	chip->ac97[ac97->num] = NULL;
1654 }
1655 
1656 static struct ac97_pcm ac97_pcm_defs[] __devinitdata = {
1657 	/* front PCM */
1658 	{
1659 		.exclusive = 1,
1660 		.r = {	{
1661 				.slots = (1 << AC97_SLOT_PCM_LEFT) |
1662 					 (1 << AC97_SLOT_PCM_RIGHT) |
1663 					 (1 << AC97_SLOT_PCM_CENTER) |
1664 					 (1 << AC97_SLOT_PCM_SLEFT) |
1665 					 (1 << AC97_SLOT_PCM_SRIGHT) |
1666 					 (1 << AC97_SLOT_LFE)
1667 			},
1668 			{
1669 				.slots = (1 << AC97_SLOT_PCM_LEFT) |
1670 					 (1 << AC97_SLOT_PCM_RIGHT) |
1671 					 (1 << AC97_SLOT_PCM_LEFT_0) |
1672 					 (1 << AC97_SLOT_PCM_RIGHT_0)
1673 			}
1674 		}
1675 	},
1676 	/* PCM IN #1 */
1677 	{
1678 		.stream = 1,
1679 		.exclusive = 1,
1680 		.r = {	{
1681 				.slots = (1 << AC97_SLOT_PCM_LEFT) |
1682 					 (1 << AC97_SLOT_PCM_RIGHT)
1683 			}
1684 		}
1685 	},
1686 	/* MIC IN #1 */
1687 	{
1688 		.stream = 1,
1689 		.exclusive = 1,
1690 		.r = {	{
1691 				.slots = (1 << AC97_SLOT_MIC)
1692 			}
1693 		}
1694 	},
1695 	/* S/PDIF PCM */
1696 	{
1697 		.exclusive = 1,
1698 		.spdif = 1,
1699 		.r = {	{
1700 				.slots = (1 << AC97_SLOT_SPDIF_LEFT2) |
1701 					 (1 << AC97_SLOT_SPDIF_RIGHT2)
1702 			}
1703 		}
1704 	},
1705 	/* PCM IN #2 */
1706 	{
1707 		.stream = 1,
1708 		.exclusive = 1,
1709 		.r = {	{
1710 				.slots = (1 << AC97_SLOT_PCM_LEFT) |
1711 					 (1 << AC97_SLOT_PCM_RIGHT)
1712 			}
1713 		}
1714 	},
1715 	/* MIC IN #2 */
1716 	{
1717 		.stream = 1,
1718 		.exclusive = 1,
1719 		.r = {	{
1720 				.slots = (1 << AC97_SLOT_MIC)
1721 			}
1722 		}
1723 	},
1724 };
1725 
1726 static struct ac97_quirk ac97_quirks[] __devinitdata = {
1727 	{
1728 		.subvendor = 0x0e11,
1729 		.subdevice = 0x008a,
1730 		.name = "Compaq Evo W4000",	/* AD1885 */
1731 		.type = AC97_TUNE_HP_ONLY
1732 	},
1733 	{
1734 		.subvendor = 0x0e11,
1735 		.subdevice = 0x00b8,
1736 		.name = "Compaq Evo D510C",
1737 		.type = AC97_TUNE_HP_ONLY
1738 	},
1739         {
1740 		.subvendor = 0x0e11,
1741 		.subdevice = 0x0860,
1742 		.name = "HP/Compaq nx7010",
1743 		.type = AC97_TUNE_MUTE_LED
1744         },
1745 	{
1746 		.subvendor = 0x1014,
1747 		.subdevice = 0x1f00,
1748 		.name = "MS-9128",
1749 		.type = AC97_TUNE_ALC_JACK
1750 	},
1751 	{
1752 		.subvendor = 0x1028,
1753 		.subdevice = 0x00d8,
1754 		.name = "Dell Precision 530",	/* AD1885 */
1755 		.type = AC97_TUNE_HP_ONLY
1756 	},
1757 	{
1758 		.subvendor = 0x1028,
1759 		.subdevice = 0x010d,
1760 		.name = "Dell",	/* which model?  AD1885 */
1761 		.type = AC97_TUNE_HP_ONLY
1762 	},
1763 	{
1764 		.subvendor = 0x1028,
1765 		.subdevice = 0x0126,
1766 		.name = "Dell Optiplex GX260",	/* AD1981A */
1767 		.type = AC97_TUNE_HP_ONLY
1768 	},
1769 	{
1770 		.subvendor = 0x1028,
1771 		.subdevice = 0x012c,
1772 		.name = "Dell Precision 650",	/* AD1981A */
1773 		.type = AC97_TUNE_HP_ONLY
1774 	},
1775 	{
1776 		.subvendor = 0x1028,
1777 		.subdevice = 0x012d,
1778 		.name = "Dell Precision 450",	/* AD1981B*/
1779 		.type = AC97_TUNE_HP_ONLY
1780 	},
1781 	{
1782 		.subvendor = 0x1028,
1783 		.subdevice = 0x0147,
1784 		.name = "Dell",	/* which model?  AD1981B*/
1785 		.type = AC97_TUNE_HP_ONLY
1786 	},
1787 	{
1788 		.subvendor = 0x1028,
1789 		.subdevice = 0x0163,
1790 		.name = "Dell Unknown",	/* STAC9750/51 */
1791 		.type = AC97_TUNE_HP_ONLY
1792 	},
1793 	{
1794 		.subvendor = 0x103c,
1795 		.subdevice = 0x006d,
1796 		.name = "HP zv5000",
1797 		.type = AC97_TUNE_MUTE_LED	/*AD1981B*/
1798 	},
1799 	{	/* FIXME: which codec? */
1800 		.subvendor = 0x103c,
1801 		.subdevice = 0x00c3,
1802 		.name = "HP xw6000",
1803 		.type = AC97_TUNE_HP_ONLY
1804 	},
1805 	{
1806 		.subvendor = 0x103c,
1807 		.subdevice = 0x088c,
1808 		.name = "HP nc8000",
1809 		.type = AC97_TUNE_MUTE_LED
1810 	},
1811 	{
1812 		.subvendor = 0x103c,
1813 		.subdevice = 0x0890,
1814 		.name = "HP nc6000",
1815 		.type = AC97_TUNE_MUTE_LED
1816 	},
1817 	{
1818 		.subvendor = 0x103c,
1819 		.subdevice = 0x129d,
1820 		.name = "HP xw8000",
1821 		.type = AC97_TUNE_HP_ONLY
1822 	},
1823 	{
1824 		.subvendor = 0x103c,
1825 		.subdevice = 0x12f1,
1826 		.name = "HP xw8200",	/* AD1981B*/
1827 		.type = AC97_TUNE_HP_ONLY
1828 	},
1829 	{
1830 		.subvendor = 0x103c,
1831 		.subdevice = 0x12f2,
1832 		.name = "HP xw6200",
1833 		.type = AC97_TUNE_HP_ONLY
1834 	},
1835 	{
1836 		.subvendor = 0x103c,
1837 		.subdevice = 0x3008,
1838 		.name = "HP xw4200",	/* AD1981B*/
1839 		.type = AC97_TUNE_HP_ONLY
1840 	},
1841 	{
1842 		.subvendor = 0x104d,
1843 		.subdevice = 0x8197,
1844 		.name = "Sony S1XP",
1845 		.type = AC97_TUNE_INV_EAPD
1846 	},
1847  	{
1848 		.subvendor = 0x1043,
1849 		.subdevice = 0x80f3,
1850 		.name = "ASUS ICH5/AD1985",
1851 		.type = AC97_TUNE_AD_SHARING
1852 	},
1853 	{
1854 		.subvendor = 0x10cf,
1855 		.subdevice = 0x11c3,
1856 		.name = "Fujitsu-Siemens E4010",
1857 		.type = AC97_TUNE_HP_ONLY
1858 	},
1859 	{
1860 		.subvendor = 0x10cf,
1861 		.subdevice = 0x1225,
1862 		.name = "Fujitsu-Siemens T3010",
1863 		.type = AC97_TUNE_HP_ONLY
1864 	},
1865 	{
1866 		.subvendor = 0x10cf,
1867 		.subdevice = 0x1253,
1868 		.name = "Fujitsu S6210",	/* STAC9750/51 */
1869 		.type = AC97_TUNE_HP_ONLY
1870 	},
1871 	{
1872 		.subvendor = 0x10f1,
1873 		.subdevice = 0x2665,
1874 		.name = "Fujitsu-Siemens Celsius",	/* AD1981? */
1875 		.type = AC97_TUNE_HP_ONLY
1876 	},
1877 	{
1878 		.subvendor = 0x10f1,
1879 		.subdevice = 0x2885,
1880 		.name = "AMD64 Mobo",	/* ALC650 */
1881 		.type = AC97_TUNE_HP_ONLY
1882 	},
1883 	{
1884 		.subvendor = 0x110a,
1885 		.subdevice = 0x0056,
1886 		.name = "Fujitsu-Siemens Scenic",	/* AD1981? */
1887 		.type = AC97_TUNE_HP_ONLY
1888 	},
1889 	{
1890 		.subvendor = 0x11d4,
1891 		.subdevice = 0x5375,
1892 		.name = "ADI AD1985 (discrete)",
1893 		.type = AC97_TUNE_HP_ONLY
1894 	},
1895 	{
1896 		.subvendor = 0x1462,
1897 		.subdevice = 0x5470,
1898 		.name = "MSI P4 ATX 645 Ultra",
1899 		.type = AC97_TUNE_HP_ONLY
1900 	},
1901 	{
1902 		.subvendor = 0x1734,
1903 		.subdevice = 0x0088,
1904 		.name = "Fujitsu-Siemens D1522",	/* AD1981 */
1905 		.type = AC97_TUNE_HP_ONLY
1906 	},
1907 	{
1908 		.subvendor = 0x8086,
1909 		.subdevice = 0x2000,
1910 		.mask = 0xfff0,
1911 		.name = "Intel ICH5/AD1985",
1912 		.type = AC97_TUNE_AD_SHARING
1913 	},
1914 	{
1915 		.subvendor = 0x8086,
1916 		.subdevice = 0x4000,
1917 		.mask = 0xfff0,
1918 		.name = "Intel ICH5/AD1985",
1919 		.type = AC97_TUNE_AD_SHARING
1920 	},
1921 	{
1922 		.subvendor = 0x8086,
1923 		.subdevice = 0x4856,
1924 		.name = "Intel D845WN (82801BA)",
1925 		.type = AC97_TUNE_SWAP_HP
1926 	},
1927 	{
1928 		.subvendor = 0x8086,
1929 		.subdevice = 0x4d44,
1930 		.name = "Intel D850EMV2",	/* AD1885 */
1931 		.type = AC97_TUNE_HP_ONLY
1932 	},
1933 	{
1934 		.subvendor = 0x8086,
1935 		.subdevice = 0x4d56,
1936 		.name = "Intel ICH/AD1885",
1937 		.type = AC97_TUNE_HP_ONLY
1938 	},
1939 	{
1940 		.subvendor = 0x8086,
1941 		.subdevice = 0x6000,
1942 		.mask = 0xfff0,
1943 		.name = "Intel ICH5/AD1985",
1944 		.type = AC97_TUNE_AD_SHARING
1945 	},
1946 	{
1947 		.subvendor = 0x8086,
1948 		.subdevice = 0xe000,
1949 		.mask = 0xfff0,
1950 		.name = "Intel ICH5/AD1985",
1951 		.type = AC97_TUNE_AD_SHARING
1952 	},
1953 #if 0 /* FIXME: this seems wrong on most boards */
1954 	{
1955 		.subvendor = 0x8086,
1956 		.subdevice = 0xa000,
1957 		.mask = 0xfff0,
1958 		.name = "Intel ICH5/AD1985",
1959 		.type = AC97_TUNE_HP_ONLY
1960 	},
1961 #endif
1962 	{ } /* terminator */
1963 };
1964 
1965 static int __devinit snd_intel8x0_mixer(intel8x0_t *chip, int ac97_clock, const char *quirk_override)
1966 {
1967 	ac97_bus_t *pbus;
1968 	ac97_template_t ac97;
1969 	int err;
1970 	unsigned int i, codecs;
1971 	unsigned int glob_sta = 0;
1972 	ac97_bus_ops_t *ops;
1973 	static ac97_bus_ops_t standard_bus_ops = {
1974 		.write = snd_intel8x0_codec_write,
1975 		.read = snd_intel8x0_codec_read,
1976 	};
1977 	static ac97_bus_ops_t ali_bus_ops = {
1978 		.write = snd_intel8x0_ali_codec_write,
1979 		.read = snd_intel8x0_ali_codec_read,
1980 	};
1981 
1982 	chip->spdif_idx = -1; /* use PCMOUT (or disabled) */
1983 	switch (chip->device_type) {
1984 	case DEVICE_NFORCE:
1985 		chip->spdif_idx = NVD_SPBAR;
1986 		break;
1987 	case DEVICE_ALI:
1988 		chip->spdif_idx = ALID_AC97SPDIFOUT;
1989 		break;
1990 	case DEVICE_INTEL_ICH4:
1991 		chip->spdif_idx = ICHD_SPBAR;
1992 		break;
1993 	};
1994 
1995 	chip->in_ac97_init = 1;
1996 
1997 	memset(&ac97, 0, sizeof(ac97));
1998 	ac97.private_data = chip;
1999 	ac97.private_free = snd_intel8x0_mixer_free_ac97;
2000 	ac97.scaps = AC97_SCAP_SKIP_MODEM;
2001 	if (chip->xbox)
2002 		ac97.scaps |= AC97_SCAP_DETECT_BY_VENDOR;
2003 	if (chip->device_type != DEVICE_ALI) {
2004 		glob_sta = igetdword(chip, ICHREG(GLOB_STA));
2005 		ops = &standard_bus_ops;
2006 		if (chip->device_type == DEVICE_INTEL_ICH4) {
2007 			codecs = 0;
2008 			if (glob_sta & ICH_PCR)
2009 				codecs++;
2010 			if (glob_sta & ICH_SCR)
2011 				codecs++;
2012 			if (glob_sta & ICH_TCR)
2013 				codecs++;
2014 			chip->in_sdin_init = 1;
2015 			for (i = 0; i < codecs; i++) {
2016 				snd_intel8x0_codec_read_test(chip, i);
2017 				chip->ac97_sdin[i] = igetbyte(chip, ICHREG(SDM)) & ICH_LDI_MASK;
2018 			}
2019 			chip->in_sdin_init = 0;
2020 		} else {
2021 			codecs = glob_sta & ICH_SCR ? 2 : 1;
2022 		}
2023 	} else {
2024 		ops = &ali_bus_ops;
2025 		codecs = 1;
2026 		/* detect the secondary codec */
2027 		for (i = 0; i < 100; i++) {
2028 			unsigned int reg = igetdword(chip, ICHREG(ALI_RTSR));
2029 			if (reg & 0x40) {
2030 				codecs = 2;
2031 				break;
2032 			}
2033 			iputdword(chip, ICHREG(ALI_RTSR), reg | 0x40);
2034 			udelay(1);
2035 		}
2036 	}
2037 	if ((err = snd_ac97_bus(chip->card, 0, ops, chip, &pbus)) < 0)
2038 		goto __err;
2039 	pbus->private_free = snd_intel8x0_mixer_free_ac97_bus;
2040 	pbus->shared_type = AC97_SHARED_TYPE_ICH;	/* shared with modem driver */
2041 	if (ac97_clock >= 8000 && ac97_clock <= 48000)
2042 		pbus->clock = ac97_clock;
2043 	/* FIXME: my test board doesn't work well with VRA... */
2044 	if (chip->device_type == DEVICE_ALI)
2045 		pbus->no_vra = 1;
2046 	else
2047 		pbus->dra = 1;
2048 	chip->ac97_bus = pbus;
2049 
2050 	ac97.pci = chip->pci;
2051 	for (i = 0; i < codecs; i++) {
2052 		ac97.num = i;
2053 		if ((err = snd_ac97_mixer(pbus, &ac97, &chip->ac97[i])) < 0) {
2054 			if (err != -EACCES)
2055 				snd_printk(KERN_ERR "Unable to initialize codec #%d\n", i);
2056 			if (i == 0)
2057 				goto __err;
2058 			continue;
2059 		}
2060 	}
2061 	/* tune up the primary codec */
2062 	snd_ac97_tune_hardware(chip->ac97[0], ac97_quirks, quirk_override);
2063 	/* enable separate SDINs for ICH4 */
2064 	if (chip->device_type == DEVICE_INTEL_ICH4)
2065 		pbus->isdin = 1;
2066 	/* find the available PCM streams */
2067 	i = ARRAY_SIZE(ac97_pcm_defs);
2068 	if (chip->device_type != DEVICE_INTEL_ICH4)
2069 		i -= 2;		/* do not allocate PCM2IN and MIC2 */
2070 	if (chip->spdif_idx < 0)
2071 		i--;		/* do not allocate S/PDIF */
2072 	err = snd_ac97_pcm_assign(pbus, i, ac97_pcm_defs);
2073 	if (err < 0)
2074 		goto __err;
2075 	chip->ichd[ICHD_PCMOUT].pcm = &pbus->pcms[0];
2076 	chip->ichd[ICHD_PCMIN].pcm = &pbus->pcms[1];
2077 	chip->ichd[ICHD_MIC].pcm = &pbus->pcms[2];
2078 	if (chip->spdif_idx >= 0)
2079 		chip->ichd[chip->spdif_idx].pcm = &pbus->pcms[3];
2080 	if (chip->device_type == DEVICE_INTEL_ICH4) {
2081 		chip->ichd[ICHD_PCM2IN].pcm = &pbus->pcms[4];
2082 		chip->ichd[ICHD_MIC2].pcm = &pbus->pcms[5];
2083 	}
2084 	/* enable separate SDINs for ICH4 */
2085 	if (chip->device_type == DEVICE_INTEL_ICH4) {
2086 		struct ac97_pcm *pcm = chip->ichd[ICHD_PCM2IN].pcm;
2087 		u8 tmp = igetbyte(chip, ICHREG(SDM));
2088 		tmp &= ~(ICH_DI2L_MASK|ICH_DI1L_MASK);
2089 		if (pcm) {
2090 			tmp |= ICH_SE;	/* steer enable for multiple SDINs */
2091 			tmp |= chip->ac97_sdin[0] << ICH_DI1L_SHIFT;
2092 			for (i = 1; i < 4; i++) {
2093 				if (pcm->r[0].codec[i]) {
2094 					tmp |= chip->ac97_sdin[pcm->r[0].codec[1]->num] << ICH_DI2L_SHIFT;
2095 					break;
2096 				}
2097 			}
2098 		} else {
2099 			tmp &= ~ICH_SE; /* steer disable */
2100 		}
2101 		iputbyte(chip, ICHREG(SDM), tmp);
2102 	}
2103 	if (pbus->pcms[0].r[0].slots & (1 << AC97_SLOT_PCM_SLEFT)) {
2104 		chip->multi4 = 1;
2105 		if (pbus->pcms[0].r[0].slots & (1 << AC97_SLOT_LFE))
2106 			chip->multi6 = 1;
2107 	}
2108 	if (pbus->pcms[0].r[1].rslots[0]) {
2109 		chip->dra = 1;
2110 	}
2111 	if (chip->device_type == DEVICE_INTEL_ICH4) {
2112 		if ((igetdword(chip, ICHREG(GLOB_STA)) & ICH_SAMPLE_CAP) == ICH_SAMPLE_16_20)
2113 			chip->smp20bit = 1;
2114 	}
2115 	if (chip->device_type == DEVICE_NFORCE) {
2116 		/* 48kHz only */
2117 		chip->ichd[chip->spdif_idx].pcm->rates = SNDRV_PCM_RATE_48000;
2118 	}
2119 	if (chip->device_type == DEVICE_INTEL_ICH4) {
2120 		/* use slot 10/11 for SPDIF */
2121 		u32 val;
2122 		val = igetdword(chip, ICHREG(GLOB_CNT)) & ~ICH_PCM_SPDIF_MASK;
2123 		val |= ICH_PCM_SPDIF_1011;
2124 		iputdword(chip, ICHREG(GLOB_CNT), val);
2125 		snd_ac97_update_bits(chip->ac97[0], AC97_EXTENDED_STATUS, 0x03 << 4, 0x03 << 4);
2126 	}
2127 	chip->in_ac97_init = 0;
2128 	return 0;
2129 
2130  __err:
2131 	/* clear the cold-reset bit for the next chance */
2132 	if (chip->device_type != DEVICE_ALI)
2133 		iputdword(chip, ICHREG(GLOB_CNT), igetdword(chip, ICHREG(GLOB_CNT)) & ~ICH_AC97COLD);
2134 	return err;
2135 }
2136 
2137 
2138 /*
2139  *
2140  */
2141 
2142 static void do_ali_reset(intel8x0_t *chip)
2143 {
2144 	iputdword(chip, ICHREG(ALI_SCR), ICH_ALI_SC_RESET);
2145 	iputdword(chip, ICHREG(ALI_FIFOCR1), 0x83838383);
2146 	iputdword(chip, ICHREG(ALI_FIFOCR2), 0x83838383);
2147 	iputdword(chip, ICHREG(ALI_FIFOCR3), 0x83838383);
2148 	iputdword(chip, ICHREG(ALI_INTERFACECR),
2149 		  ICH_ALI_IF_MC|ICH_ALI_IF_PI|ICH_ALI_IF_PO);
2150 	iputdword(chip, ICHREG(ALI_INTERRUPTCR), 0x00000000);
2151 	iputdword(chip, ICHREG(ALI_INTERRUPTSR), 0x00000000);
2152 }
2153 
2154 #define do_delay(chip) do {\
2155 	set_current_state(TASK_UNINTERRUPTIBLE);\
2156 	schedule_timeout(1);\
2157 } while (0)
2158 
2159 static int snd_intel8x0_ich_chip_init(intel8x0_t *chip, int probing)
2160 {
2161 	unsigned long end_time;
2162 	unsigned int cnt, status, nstatus;
2163 
2164 	/* put logic to right state */
2165 	/* first clear status bits */
2166 	status = ICH_RCS | ICH_MCINT | ICH_POINT | ICH_PIINT;
2167 	if (chip->device_type == DEVICE_NFORCE)
2168 		status |= ICH_NVSPINT;
2169 	cnt = igetdword(chip, ICHREG(GLOB_STA));
2170 	iputdword(chip, ICHREG(GLOB_STA), cnt & status);
2171 
2172 	/* ACLink on, 2 channels */
2173 	cnt = igetdword(chip, ICHREG(GLOB_CNT));
2174 	cnt &= ~(ICH_ACLINK | ICH_PCM_246_MASK);
2175 	/* finish cold or do warm reset */
2176 	cnt |= (cnt & ICH_AC97COLD) == 0 ? ICH_AC97COLD : ICH_AC97WARM;
2177 	iputdword(chip, ICHREG(GLOB_CNT), cnt);
2178 	end_time = (jiffies + (HZ / 4)) + 1;
2179 	do {
2180 		if ((igetdword(chip, ICHREG(GLOB_CNT)) & ICH_AC97WARM) == 0)
2181 			goto __ok;
2182 		do_delay(chip);
2183 	} while (time_after_eq(end_time, jiffies));
2184 	snd_printk("AC'97 warm reset still in progress? [0x%x]\n", igetdword(chip, ICHREG(GLOB_CNT)));
2185 	return -EIO;
2186 
2187       __ok:
2188 	if (probing) {
2189 		/* wait for any codec ready status.
2190 		 * Once it becomes ready it should remain ready
2191 		 * as long as we do not disable the ac97 link.
2192 		 */
2193 		end_time = jiffies + HZ;
2194 		do {
2195 			status = igetdword(chip, ICHREG(GLOB_STA)) & (ICH_PCR | ICH_SCR | ICH_TCR);
2196 			if (status)
2197 				break;
2198 			do_delay(chip);
2199 		} while (time_after_eq(end_time, jiffies));
2200 		if (! status) {
2201 			/* no codec is found */
2202 			snd_printk(KERN_ERR "codec_ready: codec is not ready [0x%x]\n", igetdword(chip, ICHREG(GLOB_STA)));
2203 			return -EIO;
2204 		}
2205 
2206 		if (chip->device_type == DEVICE_INTEL_ICH4)
2207 			/* ICH4 can have three codecs */
2208 			nstatus = ICH_PCR | ICH_SCR | ICH_TCR;
2209 		else
2210 			/* others up to two codecs */
2211 			nstatus = ICH_PCR | ICH_SCR;
2212 
2213 		/* wait for other codecs ready status. */
2214 		end_time = jiffies + HZ / 4;
2215 		while (status != nstatus && time_after_eq(end_time, jiffies)) {
2216 			do_delay(chip);
2217 			status |= igetdword(chip, ICHREG(GLOB_STA)) & nstatus;
2218 		}
2219 
2220 	} else {
2221 		/* resume phase */
2222 		int i;
2223 		status = 0;
2224 		for (i = 0; i < 3; i++)
2225 			if (chip->ac97[i])
2226 				status |= get_ich_codec_bit(chip, i);
2227 		/* wait until all the probed codecs are ready */
2228 		end_time = jiffies + HZ;
2229 		do {
2230 			nstatus = igetdword(chip, ICHREG(GLOB_STA)) & (ICH_PCR | ICH_SCR | ICH_TCR);
2231 			if (status == nstatus)
2232 				break;
2233 			do_delay(chip);
2234 		} while (time_after_eq(end_time, jiffies));
2235 	}
2236 
2237 	if (chip->device_type == DEVICE_SIS) {
2238 		/* unmute the output on SIS7012 */
2239 		iputword(chip, 0x4c, igetword(chip, 0x4c) | 1);
2240 	}
2241 	if (chip->device_type == DEVICE_NFORCE) {
2242 		/* enable SPDIF interrupt */
2243 		unsigned int val;
2244 		pci_read_config_dword(chip->pci, 0x4c, &val);
2245 		val |= 0x1000000;
2246 		pci_write_config_dword(chip->pci, 0x4c, val);
2247 	}
2248       	return 0;
2249 }
2250 
2251 static int snd_intel8x0_ali_chip_init(intel8x0_t *chip, int probing)
2252 {
2253 	u32 reg;
2254 	int i = 0;
2255 
2256 	reg = igetdword(chip, ICHREG(ALI_SCR));
2257 	if ((reg & 2) == 0)	/* Cold required */
2258 		reg |= 2;
2259 	else
2260 		reg |= 1;	/* Warm */
2261 	reg &= ~0x80000000;	/* ACLink on */
2262 	iputdword(chip, ICHREG(ALI_SCR), reg);
2263 
2264 	for (i = 0; i < HZ / 2; i++) {
2265 		if (! (igetdword(chip, ICHREG(ALI_INTERRUPTSR)) & ALI_INT_GPIO))
2266 			goto __ok;
2267 		do_delay(chip);
2268 	}
2269 	snd_printk(KERN_ERR "AC'97 reset failed.\n");
2270 	if (probing)
2271 		return -EIO;
2272 
2273  __ok:
2274 	for (i = 0; i < HZ / 2; i++) {
2275 		reg = igetdword(chip, ICHREG(ALI_RTSR));
2276 		if (reg & 0x80) /* primary codec */
2277 			break;
2278 		iputdword(chip, ICHREG(ALI_RTSR), reg | 0x80);
2279 		do_delay(chip);
2280 	}
2281 
2282 	do_ali_reset(chip);
2283 	return 0;
2284 }
2285 
2286 static int snd_intel8x0_chip_init(intel8x0_t *chip, int probing)
2287 {
2288 	unsigned int i;
2289 	int err;
2290 
2291 	if (chip->device_type != DEVICE_ALI) {
2292 		if ((err = snd_intel8x0_ich_chip_init(chip, probing)) < 0)
2293 			return err;
2294 		iagetword(chip, 0);	/* clear semaphore flag */
2295 	} else {
2296 		if ((err = snd_intel8x0_ali_chip_init(chip, probing)) < 0)
2297 			return err;
2298 	}
2299 
2300 	/* disable interrupts */
2301 	for (i = 0; i < chip->bdbars_count; i++)
2302 		iputbyte(chip, ICH_REG_OFF_CR + chip->ichd[i].reg_offset, 0x00);
2303 	/* reset channels */
2304 	for (i = 0; i < chip->bdbars_count; i++)
2305 		iputbyte(chip, ICH_REG_OFF_CR + chip->ichd[i].reg_offset, ICH_RESETREGS);
2306 	/* initialize Buffer Descriptor Lists */
2307 	for (i = 0; i < chip->bdbars_count; i++)
2308 		iputdword(chip, ICH_REG_OFF_BDBAR + chip->ichd[i].reg_offset, chip->ichd[i].bdbar_addr);
2309 	return 0;
2310 }
2311 
2312 static int snd_intel8x0_free(intel8x0_t *chip)
2313 {
2314 	unsigned int i;
2315 
2316 	if (chip->irq < 0)
2317 		goto __hw_end;
2318 	/* disable interrupts */
2319 	for (i = 0; i < chip->bdbars_count; i++)
2320 		iputbyte(chip, ICH_REG_OFF_CR + chip->ichd[i].reg_offset, 0x00);
2321 	/* reset channels */
2322 	for (i = 0; i < chip->bdbars_count; i++)
2323 		iputbyte(chip, ICH_REG_OFF_CR + chip->ichd[i].reg_offset, ICH_RESETREGS);
2324 	if (chip->device_type == DEVICE_NFORCE) {
2325 		/* stop the spdif interrupt */
2326 		unsigned int val;
2327 		pci_read_config_dword(chip->pci, 0x4c, &val);
2328 		val &= ~0x1000000;
2329 		pci_write_config_dword(chip->pci, 0x4c, val);
2330 	}
2331 	/* --- */
2332 	synchronize_irq(chip->irq);
2333       __hw_end:
2334 	if (chip->irq >= 0)
2335 		free_irq(chip->irq, (void *)chip);
2336 	if (chip->bdbars.area) {
2337 		if (chip->fix_nocache)
2338 			fill_nocache(chip->bdbars.area, chip->bdbars.bytes, 0);
2339 		snd_dma_free_pages(&chip->bdbars);
2340 	}
2341 	if (chip->remap_addr)
2342 		iounmap(chip->remap_addr);
2343 	if (chip->remap_bmaddr)
2344 		iounmap(chip->remap_bmaddr);
2345 	pci_release_regions(chip->pci);
2346 	pci_disable_device(chip->pci);
2347 	kfree(chip);
2348 	return 0;
2349 }
2350 
2351 #ifdef CONFIG_PM
2352 /*
2353  * power management
2354  */
2355 static int intel8x0_suspend(snd_card_t *card, pm_message_t state)
2356 {
2357 	intel8x0_t *chip = card->pm_private_data;
2358 	int i;
2359 
2360 	for (i = 0; i < chip->pcm_devs; i++)
2361 		snd_pcm_suspend_all(chip->pcm[i]);
2362 	/* clear nocache */
2363 	if (chip->fix_nocache) {
2364 		for (i = 0; i < chip->bdbars_count; i++) {
2365 			ichdev_t *ichdev = &chip->ichd[i];
2366 			if (ichdev->substream && ichdev->page_attr_changed) {
2367 				snd_pcm_runtime_t *runtime = ichdev->substream->runtime;
2368 				if (runtime->dma_area)
2369 					fill_nocache(runtime->dma_area, runtime->dma_bytes, 0);
2370 			}
2371 		}
2372 	}
2373 	for (i = 0; i < 3; i++)
2374 		if (chip->ac97[i])
2375 			snd_ac97_suspend(chip->ac97[i]);
2376 	pci_disable_device(chip->pci);
2377 	return 0;
2378 }
2379 
2380 static int intel8x0_resume(snd_card_t *card)
2381 {
2382 	intel8x0_t *chip = card->pm_private_data;
2383 	int i;
2384 
2385 	pci_enable_device(chip->pci);
2386 	pci_set_master(chip->pci);
2387 	snd_intel8x0_chip_init(chip, 0);
2388 
2389 	/* refill nocache */
2390 	if (chip->fix_nocache)
2391 		fill_nocache(chip->bdbars.area, chip->bdbars.bytes, 1);
2392 
2393 	for (i = 0; i < 3; i++)
2394 		if (chip->ac97[i])
2395 			snd_ac97_resume(chip->ac97[i]);
2396 
2397 	/* refill nocache */
2398 	if (chip->fix_nocache) {
2399 		for (i = 0; i < chip->bdbars_count; i++) {
2400 			ichdev_t *ichdev = &chip->ichd[i];
2401 			if (ichdev->substream && ichdev->page_attr_changed) {
2402 				snd_pcm_runtime_t *runtime = ichdev->substream->runtime;
2403 				if (runtime->dma_area)
2404 					fill_nocache(runtime->dma_area, runtime->dma_bytes, 1);
2405 			}
2406 		}
2407 	}
2408 
2409 	return 0;
2410 }
2411 #endif /* CONFIG_PM */
2412 
2413 #define INTEL8X0_TESTBUF_SIZE	32768	/* enough large for one shot */
2414 
2415 static void __devinit intel8x0_measure_ac97_clock(intel8x0_t *chip)
2416 {
2417 	snd_pcm_substream_t *subs;
2418 	ichdev_t *ichdev;
2419 	unsigned long port;
2420 	unsigned long pos, t;
2421 	struct timeval start_time, stop_time;
2422 
2423 	if (chip->ac97_bus->clock != 48000)
2424 		return; /* specified in module option */
2425 
2426 	subs = chip->pcm[0]->streams[0].substream;
2427 	if (! subs || subs->dma_buffer.bytes < INTEL8X0_TESTBUF_SIZE) {
2428 		snd_printk("no playback buffer allocated - aborting measure ac97 clock\n");
2429 		return;
2430 	}
2431 	ichdev = &chip->ichd[ICHD_PCMOUT];
2432 	ichdev->physbuf = subs->dma_buffer.addr;
2433 	ichdev->size = chip->ichd[ICHD_PCMOUT].fragsize = INTEL8X0_TESTBUF_SIZE;
2434 	ichdev->substream = NULL; /* don't process interrupts */
2435 
2436 	/* set rate */
2437 	if (snd_ac97_set_rate(chip->ac97[0], AC97_PCM_FRONT_DAC_RATE, 48000) < 0) {
2438 		snd_printk(KERN_ERR "cannot set ac97 rate: clock = %d\n", chip->ac97_bus->clock);
2439 		return;
2440 	}
2441 	snd_intel8x0_setup_periods(chip, ichdev);
2442 	port = ichdev->reg_offset;
2443 	spin_lock_irq(&chip->reg_lock);
2444 	chip->in_measurement = 1;
2445 	/* trigger */
2446 	if (chip->device_type != DEVICE_ALI)
2447 		iputbyte(chip, port + ICH_REG_OFF_CR, ICH_IOCE | ICH_STARTBM);
2448 	else {
2449 		iputbyte(chip, port + ICH_REG_OFF_CR, ICH_IOCE);
2450 		iputdword(chip, ICHREG(ALI_DMACR), 1 << ichdev->ali_slot);
2451 	}
2452 	do_gettimeofday(&start_time);
2453 	spin_unlock_irq(&chip->reg_lock);
2454 	set_current_state(TASK_UNINTERRUPTIBLE);
2455 	schedule_timeout(HZ / 20);
2456 	spin_lock_irq(&chip->reg_lock);
2457 	/* check the position */
2458 	pos = ichdev->fragsize1;
2459 	pos -= igetword(chip, ichdev->reg_offset + ichdev->roff_picb) << ichdev->pos_shift;
2460 	pos += ichdev->position;
2461 	chip->in_measurement = 0;
2462 	do_gettimeofday(&stop_time);
2463 	/* stop */
2464 	if (chip->device_type == DEVICE_ALI) {
2465 		iputdword(chip, ICHREG(ALI_DMACR), 1 << (ichdev->ali_slot + 8));
2466 		iputbyte(chip, port + ICH_REG_OFF_CR, 0);
2467 		while (igetbyte(chip, port + ICH_REG_OFF_CR))
2468 			;
2469 	} else {
2470 		iputbyte(chip, port + ICH_REG_OFF_CR, 0);
2471 		while (!(igetbyte(chip, port + ichdev->roff_sr) & ICH_DCH))
2472 			;
2473 	}
2474 	iputbyte(chip, port + ICH_REG_OFF_CR, ICH_RESETREGS);
2475 	spin_unlock_irq(&chip->reg_lock);
2476 
2477 	t = stop_time.tv_sec - start_time.tv_sec;
2478 	t *= 1000000;
2479 	t += stop_time.tv_usec - start_time.tv_usec;
2480 	printk(KERN_INFO "%s: measured %lu usecs\n", __FUNCTION__, t);
2481 	if (t == 0) {
2482 		snd_printk(KERN_ERR "?? calculation error..\n");
2483 		return;
2484 	}
2485 	pos = (pos / 4) * 1000;
2486 	pos = (pos / t) * 1000 + ((pos % t) * 1000) / t;
2487 	if (pos < 40000 || pos >= 60000)
2488 		/* abnormal value. hw problem? */
2489 		printk(KERN_INFO "intel8x0: measured clock %ld rejected\n", pos);
2490 	else if (pos < 47500 || pos > 48500)
2491 		/* not 48000Hz, tuning the clock.. */
2492 		chip->ac97_bus->clock = (chip->ac97_bus->clock * 48000) / pos;
2493 	printk(KERN_INFO "intel8x0: clocking to %d\n", chip->ac97_bus->clock);
2494 }
2495 
2496 static void snd_intel8x0_proc_read(snd_info_entry_t * entry,
2497 				   snd_info_buffer_t * buffer)
2498 {
2499 	intel8x0_t *chip = entry->private_data;
2500 	unsigned int tmp;
2501 
2502 	snd_iprintf(buffer, "Intel8x0\n\n");
2503 	if (chip->device_type == DEVICE_ALI)
2504 		return;
2505 	tmp = igetdword(chip, ICHREG(GLOB_STA));
2506 	snd_iprintf(buffer, "Global control        : 0x%08x\n", igetdword(chip, ICHREG(GLOB_CNT)));
2507 	snd_iprintf(buffer, "Global status         : 0x%08x\n", tmp);
2508 	if (chip->device_type == DEVICE_INTEL_ICH4)
2509 		snd_iprintf(buffer, "SDM                   : 0x%08x\n", igetdword(chip, ICHREG(SDM)));
2510 	snd_iprintf(buffer, "AC'97 codecs ready    :%s%s%s%s\n",
2511 			tmp & ICH_PCR ? " primary" : "",
2512 			tmp & ICH_SCR ? " secondary" : "",
2513 			tmp & ICH_TCR ? " tertiary" : "",
2514 			(tmp & (ICH_PCR | ICH_SCR | ICH_TCR)) == 0 ? " none" : "");
2515 	if (chip->device_type == DEVICE_INTEL_ICH4)
2516 		snd_iprintf(buffer, "AC'97 codecs SDIN     : %i %i %i\n",
2517 			chip->ac97_sdin[0],
2518 			chip->ac97_sdin[1],
2519 			chip->ac97_sdin[2]);
2520 }
2521 
2522 static void __devinit snd_intel8x0_proc_init(intel8x0_t * chip)
2523 {
2524 	snd_info_entry_t *entry;
2525 
2526 	if (! snd_card_proc_new(chip->card, "intel8x0", &entry))
2527 		snd_info_set_text_ops(entry, chip, 1024, snd_intel8x0_proc_read);
2528 }
2529 
2530 static int snd_intel8x0_dev_free(snd_device_t *device)
2531 {
2532 	intel8x0_t *chip = device->device_data;
2533 	return snd_intel8x0_free(chip);
2534 }
2535 
2536 struct ich_reg_info {
2537 	unsigned int int_sta_mask;
2538 	unsigned int offset;
2539 };
2540 
2541 static int __devinit snd_intel8x0_create(snd_card_t * card,
2542 					 struct pci_dev *pci,
2543 					 unsigned long device_type,
2544 					 intel8x0_t ** r_intel8x0)
2545 {
2546 	intel8x0_t *chip;
2547 	int err;
2548 	unsigned int i;
2549 	unsigned int int_sta_masks;
2550 	ichdev_t *ichdev;
2551 	static snd_device_ops_t ops = {
2552 		.dev_free =	snd_intel8x0_dev_free,
2553 	};
2554 
2555 	static unsigned int bdbars[] = {
2556 		3, /* DEVICE_INTEL */
2557 		6, /* DEVICE_INTEL_ICH4 */
2558 		3, /* DEVICE_SIS */
2559 		6, /* DEVICE_ALI */
2560 		4, /* DEVICE_NFORCE */
2561 	};
2562 	static struct ich_reg_info intel_regs[6] = {
2563 		{ ICH_PIINT, 0 },
2564 		{ ICH_POINT, 0x10 },
2565 		{ ICH_MCINT, 0x20 },
2566 		{ ICH_M2INT, 0x40 },
2567 		{ ICH_P2INT, 0x50 },
2568 		{ ICH_SPINT, 0x60 },
2569 	};
2570 	static struct ich_reg_info nforce_regs[4] = {
2571 		{ ICH_PIINT, 0 },
2572 		{ ICH_POINT, 0x10 },
2573 		{ ICH_MCINT, 0x20 },
2574 		{ ICH_NVSPINT, 0x70 },
2575 	};
2576 	static struct ich_reg_info ali_regs[6] = {
2577 		{ ALI_INT_PCMIN, 0x40 },
2578 		{ ALI_INT_PCMOUT, 0x50 },
2579 		{ ALI_INT_MICIN, 0x60 },
2580 		{ ALI_INT_CODECSPDIFOUT, 0x70 },
2581 		{ ALI_INT_SPDIFIN, 0xa0 },
2582 		{ ALI_INT_SPDIFOUT, 0xb0 },
2583 	};
2584 	struct ich_reg_info *tbl;
2585 
2586 	*r_intel8x0 = NULL;
2587 
2588 	if ((err = pci_enable_device(pci)) < 0)
2589 		return err;
2590 
2591 	chip = kcalloc(1, sizeof(*chip), GFP_KERNEL);
2592 	if (chip == NULL) {
2593 		pci_disable_device(pci);
2594 		return -ENOMEM;
2595 	}
2596 	spin_lock_init(&chip->reg_lock);
2597 	chip->device_type = device_type;
2598 	chip->card = card;
2599 	chip->pci = pci;
2600 	chip->irq = -1;
2601 
2602 	if (pci->vendor == PCI_VENDOR_ID_INTEL &&
2603 	    pci->device == PCI_DEVICE_ID_INTEL_440MX)
2604 		chip->fix_nocache = 1; /* enable workaround */
2605 
2606 	/* some Nforce[2] and ICH boards have problems with IRQ handling.
2607 	 * Needs to return IRQ_HANDLED for unknown irqs.
2608 	 */
2609 	if (device_type == DEVICE_NFORCE)
2610 		chip->buggy_irq = 1;
2611 
2612 	if ((err = pci_request_regions(pci, card->shortname)) < 0) {
2613 		kfree(chip);
2614 		pci_disable_device(pci);
2615 		return err;
2616 	}
2617 
2618 	if (device_type == DEVICE_ALI) {
2619 		/* ALI5455 has no ac97 region */
2620 		chip->bmaddr = pci_resource_start(pci, 0);
2621 		goto port_inited;
2622 	}
2623 
2624 	if (pci_resource_flags(pci, 2) & IORESOURCE_MEM) {	/* ICH4 and Nforce */
2625 		chip->mmio = 1;
2626 		chip->addr = pci_resource_start(pci, 2);
2627 		chip->remap_addr = ioremap_nocache(chip->addr,
2628 						   pci_resource_len(pci, 2));
2629 		if (chip->remap_addr == NULL) {
2630 			snd_printk("AC'97 space ioremap problem\n");
2631 			snd_intel8x0_free(chip);
2632 			return -EIO;
2633 		}
2634 	} else {
2635 		chip->addr = pci_resource_start(pci, 0);
2636 	}
2637 	if (pci_resource_flags(pci, 3) & IORESOURCE_MEM) {	/* ICH4 */
2638 		chip->bm_mmio = 1;
2639 		chip->bmaddr = pci_resource_start(pci, 3);
2640 		chip->remap_bmaddr = ioremap_nocache(chip->bmaddr,
2641 						     pci_resource_len(pci, 3));
2642 		if (chip->remap_bmaddr == NULL) {
2643 			snd_printk("Controller space ioremap problem\n");
2644 			snd_intel8x0_free(chip);
2645 			return -EIO;
2646 		}
2647 	} else {
2648 		chip->bmaddr = pci_resource_start(pci, 1);
2649 	}
2650 
2651  port_inited:
2652 	if (request_irq(pci->irq, snd_intel8x0_interrupt, SA_INTERRUPT|SA_SHIRQ, card->shortname, (void *)chip)) {
2653 		snd_printk("unable to grab IRQ %d\n", pci->irq);
2654 		snd_intel8x0_free(chip);
2655 		return -EBUSY;
2656 	}
2657 	chip->irq = pci->irq;
2658 	pci_set_master(pci);
2659 	synchronize_irq(chip->irq);
2660 
2661 	chip->bdbars_count = bdbars[device_type];
2662 
2663 	/* initialize offsets */
2664 	switch (device_type) {
2665 	case DEVICE_NFORCE:
2666 		tbl = nforce_regs;
2667 		break;
2668 	case DEVICE_ALI:
2669 		tbl = ali_regs;
2670 		break;
2671 	default:
2672 		tbl = intel_regs;
2673 		break;
2674 	}
2675 	for (i = 0; i < chip->bdbars_count; i++) {
2676 		ichdev = &chip->ichd[i];
2677 		ichdev->ichd = i;
2678 		ichdev->reg_offset = tbl[i].offset;
2679 		ichdev->int_sta_mask = tbl[i].int_sta_mask;
2680 		if (device_type == DEVICE_SIS) {
2681 			/* SiS 7012 swaps the registers */
2682 			ichdev->roff_sr = ICH_REG_OFF_PICB;
2683 			ichdev->roff_picb = ICH_REG_OFF_SR;
2684 		} else {
2685 			ichdev->roff_sr = ICH_REG_OFF_SR;
2686 			ichdev->roff_picb = ICH_REG_OFF_PICB;
2687 		}
2688 		if (device_type == DEVICE_ALI)
2689 			ichdev->ali_slot = (ichdev->reg_offset - 0x40) / 0x10;
2690 		/* SIS7012 handles the pcm data in bytes, others are in samples */
2691 		ichdev->pos_shift = (device_type == DEVICE_SIS) ? 0 : 1;
2692 	}
2693 
2694 	/* allocate buffer descriptor lists */
2695 	/* the start of each lists must be aligned to 8 bytes */
2696 	if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci),
2697 				chip->bdbars_count * sizeof(u32) * ICH_MAX_FRAGS * 2,
2698 				&chip->bdbars) < 0) {
2699 		snd_intel8x0_free(chip);
2700 		snd_printk(KERN_ERR "intel8x0: cannot allocate buffer descriptors\n");
2701 		return -ENOMEM;
2702 	}
2703 	/* tables must be aligned to 8 bytes here, but the kernel pages
2704 	   are much bigger, so we don't care (on i386) */
2705 	/* workaround for 440MX */
2706 	if (chip->fix_nocache)
2707 		fill_nocache(chip->bdbars.area, chip->bdbars.bytes, 1);
2708 	int_sta_masks = 0;
2709 	for (i = 0; i < chip->bdbars_count; i++) {
2710 		ichdev = &chip->ichd[i];
2711 		ichdev->bdbar = ((u32 *)chip->bdbars.area) + (i * ICH_MAX_FRAGS * 2);
2712 		ichdev->bdbar_addr = chip->bdbars.addr + (i * sizeof(u32) * ICH_MAX_FRAGS * 2);
2713 		int_sta_masks |= ichdev->int_sta_mask;
2714 	}
2715 	chip->int_sta_reg = device_type == DEVICE_ALI ? ICH_REG_ALI_INTERRUPTSR : ICH_REG_GLOB_STA;
2716 	chip->int_sta_mask = int_sta_masks;
2717 
2718 	if ((err = snd_intel8x0_chip_init(chip, 1)) < 0) {
2719 		snd_intel8x0_free(chip);
2720 		return err;
2721 	}
2722 
2723 	snd_card_set_pm_callback(card, intel8x0_suspend, intel8x0_resume, chip);
2724 
2725 	if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
2726 		snd_intel8x0_free(chip);
2727 		return err;
2728 	}
2729 
2730 	snd_card_set_dev(card, &pci->dev);
2731 
2732 	*r_intel8x0 = chip;
2733 	return 0;
2734 }
2735 
2736 static struct shortname_table {
2737 	unsigned int id;
2738 	const char *s;
2739 } shortnames[] __devinitdata = {
2740 	{ PCI_DEVICE_ID_INTEL_82801, "Intel 82801AA-ICH" },
2741 	{ PCI_DEVICE_ID_INTEL_82901, "Intel 82901AB-ICH0" },
2742 	{ PCI_DEVICE_ID_INTEL_82801BA, "Intel 82801BA-ICH2" },
2743 	{ PCI_DEVICE_ID_INTEL_440MX, "Intel 440MX" },
2744 	{ PCI_DEVICE_ID_INTEL_ICH3, "Intel 82801CA-ICH3" },
2745 	{ PCI_DEVICE_ID_INTEL_ICH4, "Intel 82801DB-ICH4" },
2746 	{ PCI_DEVICE_ID_INTEL_ICH5, "Intel ICH5" },
2747 	{ PCI_DEVICE_ID_INTEL_ESB_5, "Intel 6300ESB" },
2748 	{ PCI_DEVICE_ID_INTEL_ICH6_18, "Intel ICH6" },
2749 	{ PCI_DEVICE_ID_INTEL_ICH7_20, "Intel ICH7" },
2750 	{ PCI_DEVICE_ID_INTEL_ESB2_14, "Intel ESB2" },
2751 	{ PCI_DEVICE_ID_SI_7012, "SiS SI7012" },
2752 	{ PCI_DEVICE_ID_NVIDIA_MCP_AUDIO, "NVidia nForce" },
2753 	{ PCI_DEVICE_ID_NVIDIA_MCP2_AUDIO, "NVidia nForce2" },
2754 	{ PCI_DEVICE_ID_NVIDIA_MCP3_AUDIO, "NVidia nForce3" },
2755 	{ PCI_DEVICE_ID_NVIDIA_CK8S_AUDIO, "NVidia CK8S" },
2756 	{ PCI_DEVICE_ID_NVIDIA_CK804_AUDIO, "NVidia CK804" },
2757 	{ PCI_DEVICE_ID_NVIDIA_CK8_AUDIO, "NVidia CK8" },
2758 	{ 0x003a, "NVidia MCP04" },
2759 	{ 0x746d, "AMD AMD8111" },
2760 	{ 0x7445, "AMD AMD768" },
2761 	{ 0x5455, "ALi M5455" },
2762 	{ 0, NULL },
2763 };
2764 
2765 static int __devinit snd_intel8x0_probe(struct pci_dev *pci,
2766 					const struct pci_device_id *pci_id)
2767 {
2768 	static int dev;
2769 	snd_card_t *card;
2770 	intel8x0_t *chip;
2771 	int err;
2772 	struct shortname_table *name;
2773 
2774 	if (dev >= SNDRV_CARDS)
2775 		return -ENODEV;
2776 	if (!enable[dev]) {
2777 		dev++;
2778 		return -ENOENT;
2779 	}
2780 
2781 	card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0);
2782 	if (card == NULL)
2783 		return -ENOMEM;
2784 
2785 	switch (pci_id->driver_data) {
2786 	case DEVICE_NFORCE:
2787 		strcpy(card->driver, "NFORCE");
2788 		break;
2789 	case DEVICE_INTEL_ICH4:
2790 		strcpy(card->driver, "ICH4");
2791 		break;
2792 	default:
2793 		strcpy(card->driver, "ICH");
2794 		break;
2795 	}
2796 
2797 	strcpy(card->shortname, "Intel ICH");
2798 	for (name = shortnames; name->id; name++) {
2799 		if (pci->device == name->id) {
2800 			strcpy(card->shortname, name->s);
2801 			break;
2802 		}
2803 	}
2804 
2805 	if ((err = snd_intel8x0_create(card, pci, pci_id->driver_data, &chip)) < 0) {
2806 		snd_card_free(card);
2807 		return err;
2808 	}
2809 	if (buggy_irq[dev])
2810 		chip->buggy_irq = 1;
2811 	if (xbox[dev])
2812 		chip->xbox = 1;
2813 
2814 	if ((err = snd_intel8x0_mixer(chip, ac97_clock[dev], ac97_quirk[dev])) < 0) {
2815 		snd_card_free(card);
2816 		return err;
2817 	}
2818 	if ((err = snd_intel8x0_pcm(chip)) < 0) {
2819 		snd_card_free(card);
2820 		return err;
2821 	}
2822 
2823 	snd_intel8x0_proc_init(chip);
2824 
2825 	snprintf(card->longname, sizeof(card->longname),
2826 		 "%s with %s at %#lx, irq %i", card->shortname,
2827 		 snd_ac97_get_short_name(chip->ac97[0]), chip->addr, chip->irq);
2828 
2829 	if (! ac97_clock[dev])
2830 		intel8x0_measure_ac97_clock(chip);
2831 
2832 	if ((err = snd_card_register(card)) < 0) {
2833 		snd_card_free(card);
2834 		return err;
2835 	}
2836 	pci_set_drvdata(pci, card);
2837 	dev++;
2838 	return 0;
2839 }
2840 
2841 static void __devexit snd_intel8x0_remove(struct pci_dev *pci)
2842 {
2843 	snd_card_free(pci_get_drvdata(pci));
2844 	pci_set_drvdata(pci, NULL);
2845 }
2846 
2847 static struct pci_driver driver = {
2848 	.name = "Intel ICH",
2849 	.id_table = snd_intel8x0_ids,
2850 	.probe = snd_intel8x0_probe,
2851 	.remove = __devexit_p(snd_intel8x0_remove),
2852 	SND_PCI_PM_CALLBACKS
2853 };
2854 
2855 
2856 static int __init alsa_card_intel8x0_init(void)
2857 {
2858 	return pci_register_driver(&driver);
2859 }
2860 
2861 static void __exit alsa_card_intel8x0_exit(void)
2862 {
2863 	pci_unregister_driver(&driver);
2864 }
2865 
2866 module_init(alsa_card_intel8x0_init)
2867 module_exit(alsa_card_intel8x0_exit)
2868