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TOMOYO Linux Cross Reference
Linux/sound/pci/intel8x0.c

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  1 /*
  2  *   ALSA driver for Intel ICH (i8x0) chipsets
  3  *
  4  *      Copyright (c) 2000 Jaroslav Kysela <perex@perex.cz>
  5  *
  6  *
  7  *   This code also contains alpha support for SiS 735 chipsets provided
  8  *   by Mike Pieper <mptei@users.sourceforge.net>. We have no datasheet
  9  *   for SiS735, so the code is not fully functional.
 10  *
 11  *
 12  *   This program is free software; you can redistribute it and/or modify
 13  *   it under the terms of the GNU General Public License as published by
 14  *   the Free Software Foundation; either version 2 of the License, or
 15  *   (at your option) any later version.
 16  *
 17  *   This program is distributed in the hope that it will be useful,
 18  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
 19  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 20  *   GNU General Public License for more details.
 21  *
 22  *   You should have received a copy of the GNU General Public License
 23  *   along with this program; if not, write to the Free Software
 24  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
 25 
 26  *
 27  */      
 28 
 29 #include <asm/io.h>
 30 #include <linux/delay.h>
 31 #include <linux/interrupt.h>
 32 #include <linux/init.h>
 33 #include <linux/pci.h>
 34 #include <linux/slab.h>
 35 #include <linux/module.h>
 36 #include <sound/core.h>
 37 #include <sound/pcm.h>
 38 #include <sound/ac97_codec.h>
 39 #include <sound/info.h>
 40 #include <sound/initval.h>
 41 /* for 440MX workaround */
 42 #include <asm/pgtable.h>
 43 #include <asm/cacheflush.h>
 44 
 45 #ifdef CONFIG_KVM_GUEST
 46 #include <linux/kvm_para.h>
 47 #else
 48 #define kvm_para_available() (0)
 49 #endif
 50 
 51 MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
 52 MODULE_DESCRIPTION("Intel 82801AA,82901AB,i810,i820,i830,i840,i845,MX440; SiS 7012; Ali 5455");
 53 MODULE_LICENSE("GPL");
 54 MODULE_SUPPORTED_DEVICE("{{Intel,82801AA-ICH},"
 55                 "{Intel,82901AB-ICH0},"
 56                 "{Intel,82801BA-ICH2},"
 57                 "{Intel,82801CA-ICH3},"
 58                 "{Intel,82801DB-ICH4},"
 59                 "{Intel,ICH5},"
 60                 "{Intel,ICH6},"
 61                 "{Intel,ICH7},"
 62                 "{Intel,6300ESB},"
 63                 "{Intel,ESB2},"
 64                 "{Intel,MX440},"
 65                 "{SiS,SI7012},"
 66                 "{NVidia,nForce Audio},"
 67                 "{NVidia,nForce2 Audio},"
 68                 "{NVidia,nForce3 Audio},"
 69                 "{NVidia,MCP04},"
 70                 "{NVidia,MCP501},"
 71                 "{NVidia,CK804},"
 72                 "{NVidia,CK8},"
 73                 "{NVidia,CK8S},"
 74                 "{AMD,AMD768},"
 75                 "{AMD,AMD8111},"
 76                 "{ALI,M5455}}");
 77 
 78 static int index = SNDRV_DEFAULT_IDX1;  /* Index 0-MAX */
 79 static char *id = SNDRV_DEFAULT_STR1;   /* ID for this card */
 80 static int ac97_clock;
 81 static char *ac97_quirk;
 82 static int buggy_semaphore;
 83 static int buggy_irq = -1; /* auto-check */
 84 static int xbox;
 85 static int spdif_aclink = -1;
 86 static int inside_vm = -1;
 87 
 88 module_param(index, int, 0444);
 89 MODULE_PARM_DESC(index, "Index value for Intel i8x0 soundcard.");
 90 module_param(id, charp, 0444);
 91 MODULE_PARM_DESC(id, "ID string for Intel i8x0 soundcard.");
 92 module_param(ac97_clock, int, 0444);
 93 MODULE_PARM_DESC(ac97_clock, "AC'97 codec clock (0 = whitelist + auto-detect, 1 = force autodetect).");
 94 module_param(ac97_quirk, charp, 0444);
 95 MODULE_PARM_DESC(ac97_quirk, "AC'97 workaround for strange hardware.");
 96 module_param(buggy_semaphore, bool, 0444);
 97 MODULE_PARM_DESC(buggy_semaphore, "Enable workaround for hardwares with problematic codec semaphores.");
 98 module_param(buggy_irq, bool, 0444);
 99 MODULE_PARM_DESC(buggy_irq, "Enable workaround for buggy interrupts on some motherboards.");
100 module_param(xbox, bool, 0444);
101 MODULE_PARM_DESC(xbox, "Set to 1 for Xbox, if you have problems with the AC'97 codec detection.");
102 module_param(spdif_aclink, int, 0444);
103 MODULE_PARM_DESC(spdif_aclink, "S/PDIF over AC-link.");
104 module_param(inside_vm, bool, 0444);
105 MODULE_PARM_DESC(inside_vm, "KVM/Parallels optimization.");
106 
107 /* just for backward compatibility */
108 static int enable;
109 module_param(enable, bool, 0444);
110 static int joystick;
111 module_param(joystick, int, 0444);
112 
113 /*
114  *  Direct registers
115  */
116 enum { DEVICE_INTEL, DEVICE_INTEL_ICH4, DEVICE_SIS, DEVICE_ALI, DEVICE_NFORCE };
117 
118 #define ICHREG(x) ICH_REG_##x
119 
120 #define DEFINE_REGSET(name,base) \
121 enum { \
122         ICH_REG_##name##_BDBAR  = base + 0x0,   /* dword - buffer descriptor list base address */ \
123         ICH_REG_##name##_CIV    = base + 0x04,  /* byte - current index value */ \
124         ICH_REG_##name##_LVI    = base + 0x05,  /* byte - last valid index */ \
125         ICH_REG_##name##_SR     = base + 0x06,  /* byte - status register */ \
126         ICH_REG_##name##_PICB   = base + 0x08,  /* word - position in current buffer */ \
127         ICH_REG_##name##_PIV    = base + 0x0a,  /* byte - prefetched index value */ \
128         ICH_REG_##name##_CR     = base + 0x0b,  /* byte - control register */ \
129 };
130 
131 /* busmaster blocks */
132 DEFINE_REGSET(OFF, 0);          /* offset */
133 DEFINE_REGSET(PI, 0x00);        /* PCM in */
134 DEFINE_REGSET(PO, 0x10);        /* PCM out */
135 DEFINE_REGSET(MC, 0x20);        /* Mic in */
136 
137 /* ICH4 busmaster blocks */
138 DEFINE_REGSET(MC2, 0x40);       /* Mic in 2 */
139 DEFINE_REGSET(PI2, 0x50);       /* PCM in 2 */
140 DEFINE_REGSET(SP, 0x60);        /* SPDIF out */
141 
142 /* values for each busmaster block */
143 
144 /* LVI */
145 #define ICH_REG_LVI_MASK                0x1f
146 
147 /* SR */
148 #define ICH_FIFOE                       0x10    /* FIFO error */
149 #define ICH_BCIS                        0x08    /* buffer completion interrupt status */
150 #define ICH_LVBCI                       0x04    /* last valid buffer completion interrupt */
151 #define ICH_CELV                        0x02    /* current equals last valid */
152 #define ICH_DCH                         0x01    /* DMA controller halted */
153 
154 /* PIV */
155 #define ICH_REG_PIV_MASK                0x1f    /* mask */
156 
157 /* CR */
158 #define ICH_IOCE                        0x10    /* interrupt on completion enable */
159 #define ICH_FEIE                        0x08    /* fifo error interrupt enable */
160 #define ICH_LVBIE                       0x04    /* last valid buffer interrupt enable */
161 #define ICH_RESETREGS                   0x02    /* reset busmaster registers */
162 #define ICH_STARTBM                     0x01    /* start busmaster operation */
163 
164 
165 /* global block */
166 #define ICH_REG_GLOB_CNT                0x2c    /* dword - global control */
167 #define   ICH_PCM_SPDIF_MASK    0xc0000000      /* s/pdif pcm slot mask (ICH4) */
168 #define   ICH_PCM_SPDIF_NONE    0x00000000      /* reserved - undefined */
169 #define   ICH_PCM_SPDIF_78      0x40000000      /* s/pdif pcm on slots 7&8 */
170 #define   ICH_PCM_SPDIF_69      0x80000000      /* s/pdif pcm on slots 6&9 */
171 #define   ICH_PCM_SPDIF_1011    0xc0000000      /* s/pdif pcm on slots 10&11 */
172 #define   ICH_PCM_20BIT         0x00400000      /* 20-bit samples (ICH4) */
173 #define   ICH_PCM_246_MASK      0x00300000      /* chan mask (not all chips) */
174 #define   ICH_PCM_8             0x00300000      /* 8 channels (not all chips) */
175 #define   ICH_PCM_6             0x00200000      /* 6 channels (not all chips) */
176 #define   ICH_PCM_4             0x00100000      /* 4 channels (not all chips) */
177 #define   ICH_PCM_2             0x00000000      /* 2 channels (stereo) */
178 #define   ICH_SIS_PCM_246_MASK  0x000000c0      /* 6 channels (SIS7012) */
179 #define   ICH_SIS_PCM_6         0x00000080      /* 6 channels (SIS7012) */
180 #define   ICH_SIS_PCM_4         0x00000040      /* 4 channels (SIS7012) */
181 #define   ICH_SIS_PCM_2         0x00000000      /* 2 channels (SIS7012) */
182 #define   ICH_TRIE              0x00000040      /* tertiary resume interrupt enable */
183 #define   ICH_SRIE              0x00000020      /* secondary resume interrupt enable */
184 #define   ICH_PRIE              0x00000010      /* primary resume interrupt enable */
185 #define   ICH_ACLINK            0x00000008      /* AClink shut off */
186 #define   ICH_AC97WARM          0x00000004      /* AC'97 warm reset */
187 #define   ICH_AC97COLD          0x00000002      /* AC'97 cold reset */
188 #define   ICH_GIE               0x00000001      /* GPI interrupt enable */
189 #define ICH_REG_GLOB_STA                0x30    /* dword - global status */
190 #define   ICH_TRI               0x20000000      /* ICH4: tertiary (AC_SDIN2) resume interrupt */
191 #define   ICH_TCR               0x10000000      /* ICH4: tertiary (AC_SDIN2) codec ready */
192 #define   ICH_BCS               0x08000000      /* ICH4: bit clock stopped */
193 #define   ICH_SPINT             0x04000000      /* ICH4: S/PDIF interrupt */
194 #define   ICH_P2INT             0x02000000      /* ICH4: PCM2-In interrupt */
195 #define   ICH_M2INT             0x01000000      /* ICH4: Mic2-In interrupt */
196 #define   ICH_SAMPLE_CAP        0x00c00000      /* ICH4: sample capability bits (RO) */
197 #define   ICH_SAMPLE_16_20      0x00400000      /* ICH4: 16- and 20-bit samples */
198 #define   ICH_MULTICHAN_CAP     0x00300000      /* ICH4: multi-channel capability bits (RO) */
199 #define   ICH_SIS_TRI           0x00080000      /* SIS: tertiary resume irq */
200 #define   ICH_SIS_TCR           0x00040000      /* SIS: tertiary codec ready */
201 #define   ICH_MD3               0x00020000      /* modem power down semaphore */
202 #define   ICH_AD3               0x00010000      /* audio power down semaphore */
203 #define   ICH_RCS               0x00008000      /* read completion status */
204 #define   ICH_BIT3              0x00004000      /* bit 3 slot 12 */
205 #define   ICH_BIT2              0x00002000      /* bit 2 slot 12 */
206 #define   ICH_BIT1              0x00001000      /* bit 1 slot 12 */
207 #define   ICH_SRI               0x00000800      /* secondary (AC_SDIN1) resume interrupt */
208 #define   ICH_PRI               0x00000400      /* primary (AC_SDIN0) resume interrupt */
209 #define   ICH_SCR               0x00000200      /* secondary (AC_SDIN1) codec ready */
210 #define   ICH_PCR               0x00000100      /* primary (AC_SDIN0) codec ready */
211 #define   ICH_MCINT             0x00000080      /* MIC capture interrupt */
212 #define   ICH_POINT             0x00000040      /* playback interrupt */
213 #define   ICH_PIINT             0x00000020      /* capture interrupt */
214 #define   ICH_NVSPINT           0x00000010      /* nforce spdif interrupt */
215 #define   ICH_MOINT             0x00000004      /* modem playback interrupt */
216 #define   ICH_MIINT             0x00000002      /* modem capture interrupt */
217 #define   ICH_GSCI              0x00000001      /* GPI status change interrupt */
218 #define ICH_REG_ACC_SEMA                0x34    /* byte - codec write semaphore */
219 #define   ICH_CAS               0x01            /* codec access semaphore */
220 #define ICH_REG_SDM             0x80
221 #define   ICH_DI2L_MASK         0x000000c0      /* PCM In 2, Mic In 2 data in line */
222 #define   ICH_DI2L_SHIFT        6
223 #define   ICH_DI1L_MASK         0x00000030      /* PCM In 1, Mic In 1 data in line */
224 #define   ICH_DI1L_SHIFT        4
225 #define   ICH_SE                0x00000008      /* steer enable */
226 #define   ICH_LDI_MASK          0x00000003      /* last codec read data input */
227 
228 #define ICH_MAX_FRAGS           32              /* max hw frags */
229 
230 
231 /*
232  * registers for Ali5455
233  */
234 
235 /* ALi 5455 busmaster blocks */
236 DEFINE_REGSET(AL_PI, 0x40);     /* ALi PCM in */
237 DEFINE_REGSET(AL_PO, 0x50);     /* Ali PCM out */
238 DEFINE_REGSET(AL_MC, 0x60);     /* Ali Mic in */
239 DEFINE_REGSET(AL_CDC_SPO, 0x70);        /* Ali Codec SPDIF out */
240 DEFINE_REGSET(AL_CENTER, 0x80);         /* Ali center out */
241 DEFINE_REGSET(AL_LFE, 0x90);            /* Ali center out */
242 DEFINE_REGSET(AL_CLR_SPI, 0xa0);        /* Ali Controller SPDIF in */
243 DEFINE_REGSET(AL_CLR_SPO, 0xb0);        /* Ali Controller SPDIF out */
244 DEFINE_REGSET(AL_I2S, 0xc0);    /* Ali I2S in */
245 DEFINE_REGSET(AL_PI2, 0xd0);    /* Ali PCM2 in */
246 DEFINE_REGSET(AL_MC2, 0xe0);    /* Ali Mic2 in */
247 
248 enum {
249         ICH_REG_ALI_SCR = 0x00,         /* System Control Register */
250         ICH_REG_ALI_SSR = 0x04,         /* System Status Register  */
251         ICH_REG_ALI_DMACR = 0x08,       /* DMA Control Register    */
252         ICH_REG_ALI_FIFOCR1 = 0x0c,     /* FIFO Control Register 1  */
253         ICH_REG_ALI_INTERFACECR = 0x10, /* Interface Control Register */
254         ICH_REG_ALI_INTERRUPTCR = 0x14, /* Interrupt control Register */
255         ICH_REG_ALI_INTERRUPTSR = 0x18, /* Interrupt  Status Register */
256         ICH_REG_ALI_FIFOCR2 = 0x1c,     /* FIFO Control Register 2   */
257         ICH_REG_ALI_CPR = 0x20,         /* Command Port Register     */
258         ICH_REG_ALI_CPR_ADDR = 0x22,    /* ac97 addr write */
259         ICH_REG_ALI_SPR = 0x24,         /* Status Port Register      */
260         ICH_REG_ALI_SPR_ADDR = 0x26,    /* ac97 addr read */
261         ICH_REG_ALI_FIFOCR3 = 0x2c,     /* FIFO Control Register 3  */
262         ICH_REG_ALI_TTSR = 0x30,        /* Transmit Tag Slot Register */
263         ICH_REG_ALI_RTSR = 0x34,        /* Receive Tag Slot  Register */
264         ICH_REG_ALI_CSPSR = 0x38,       /* Command/Status Port Status Register */
265         ICH_REG_ALI_CAS = 0x3c,         /* Codec Write Semaphore Register */
266         ICH_REG_ALI_HWVOL = 0xf0,       /* hardware volume control/status */
267         ICH_REG_ALI_I2SCR = 0xf4,       /* I2S control/status */
268         ICH_REG_ALI_SPDIFCSR = 0xf8,    /* spdif channel status register  */
269         ICH_REG_ALI_SPDIFICS = 0xfc,    /* spdif interface control/status  */
270 };
271 
272 #define ALI_CAS_SEM_BUSY        0x80000000
273 #define ALI_CPR_ADDR_SECONDARY  0x100
274 #define ALI_CPR_ADDR_READ       0x80
275 #define ALI_CSPSR_CODEC_READY   0x08
276 #define ALI_CSPSR_READ_OK       0x02
277 #define ALI_CSPSR_WRITE_OK      0x01
278 
279 /* interrupts for the whole chip by interrupt status register finish */
280  
281 #define ALI_INT_MICIN2          (1<<26)
282 #define ALI_INT_PCMIN2          (1<<25)
283 #define ALI_INT_I2SIN           (1<<24)
284 #define ALI_INT_SPDIFOUT        (1<<23) /* controller spdif out INTERRUPT */
285 #define ALI_INT_SPDIFIN         (1<<22)
286 #define ALI_INT_LFEOUT          (1<<21)
287 #define ALI_INT_CENTEROUT       (1<<20)
288 #define ALI_INT_CODECSPDIFOUT   (1<<19)
289 #define ALI_INT_MICIN           (1<<18)
290 #define ALI_INT_PCMOUT          (1<<17)
291 #define ALI_INT_PCMIN           (1<<16)
292 #define ALI_INT_CPRAIS          (1<<7)  /* command port available */
293 #define ALI_INT_SPRAIS          (1<<5)  /* status port available */
294 #define ALI_INT_GPIO            (1<<1)
295 #define ALI_INT_MASK            (ALI_INT_SPDIFOUT|ALI_INT_CODECSPDIFOUT|\
296                                  ALI_INT_MICIN|ALI_INT_PCMOUT|ALI_INT_PCMIN)
297 
298 #define ICH_ALI_SC_RESET        (1<<31) /* master reset */
299 #define ICH_ALI_SC_AC97_DBL     (1<<30)
300 #define ICH_ALI_SC_CODEC_SPDF   (3<<20) /* 1=7/8, 2=6/9, 3=10/11 */
301 #define ICH_ALI_SC_IN_BITS      (3<<18)
302 #define ICH_ALI_SC_OUT_BITS     (3<<16)
303 #define ICH_ALI_SC_6CH_CFG      (3<<14)
304 #define ICH_ALI_SC_PCM_4        (1<<8)
305 #define ICH_ALI_SC_PCM_6        (2<<8)
306 #define ICH_ALI_SC_PCM_246_MASK (3<<8)
307 
308 #define ICH_ALI_SS_SEC_ID       (3<<5)
309 #define ICH_ALI_SS_PRI_ID       (3<<3)
310 
311 #define ICH_ALI_IF_AC97SP       (1<<21)
312 #define ICH_ALI_IF_MC           (1<<20)
313 #define ICH_ALI_IF_PI           (1<<19)
314 #define ICH_ALI_IF_MC2          (1<<18)
315 #define ICH_ALI_IF_PI2          (1<<17)
316 #define ICH_ALI_IF_LINE_SRC     (1<<15) /* 0/1 = slot 3/6 */
317 #define ICH_ALI_IF_MIC_SRC      (1<<14) /* 0/1 = slot 3/6 */
318 #define ICH_ALI_IF_SPDF_SRC     (3<<12) /* 00 = PCM, 01 = AC97-in, 10 = spdif-in, 11 = i2s */
319 #define ICH_ALI_IF_AC97_OUT     (3<<8)  /* 00 = PCM, 10 = spdif-in, 11 = i2s */
320 #define ICH_ALI_IF_PO_SPDF      (1<<3)
321 #define ICH_ALI_IF_PO           (1<<1)
322 
323 /*
324  *  
325  */
326 
327 enum {
328         ICHD_PCMIN,
329         ICHD_PCMOUT,
330         ICHD_MIC,
331         ICHD_MIC2,
332         ICHD_PCM2IN,
333         ICHD_SPBAR,
334         ICHD_LAST = ICHD_SPBAR
335 };
336 enum {
337         NVD_PCMIN,
338         NVD_PCMOUT,
339         NVD_MIC,
340         NVD_SPBAR,
341         NVD_LAST = NVD_SPBAR
342 };
343 enum {
344         ALID_PCMIN,
345         ALID_PCMOUT,
346         ALID_MIC,
347         ALID_AC97SPDIFOUT,
348         ALID_SPDIFIN,
349         ALID_SPDIFOUT,
350         ALID_LAST = ALID_SPDIFOUT
351 };
352 
353 #define get_ichdev(substream) (substream->runtime->private_data)
354 
355 struct ichdev {
356         unsigned int ichd;                      /* ich device number */
357         unsigned long reg_offset;               /* offset to bmaddr */
358         u32 *bdbar;                             /* CPU address (32bit) */
359         unsigned int bdbar_addr;                /* PCI bus address (32bit) */
360         struct snd_pcm_substream *substream;
361         unsigned int physbuf;                   /* physical address (32bit) */
362         unsigned int size;
363         unsigned int fragsize;
364         unsigned int fragsize1;
365         unsigned int position;
366         unsigned int pos_shift;
367         unsigned int last_pos;
368         int frags;
369         int lvi;
370         int lvi_frag;
371         int civ;
372         int ack;
373         int ack_reload;
374         unsigned int ack_bit;
375         unsigned int roff_sr;
376         unsigned int roff_picb;
377         unsigned int int_sta_mask;              /* interrupt status mask */
378         unsigned int ali_slot;                  /* ALI DMA slot */
379         struct ac97_pcm *pcm;
380         int pcm_open_flag;
381         unsigned int page_attr_changed: 1;
382         unsigned int suspended: 1;
383 };
384 
385 struct intel8x0 {
386         unsigned int device_type;
387 
388         int irq;
389 
390         void __iomem *addr;
391         void __iomem *bmaddr;
392 
393         struct pci_dev *pci;
394         struct snd_card *card;
395 
396         int pcm_devs;
397         struct snd_pcm *pcm[6];
398         struct ichdev ichd[6];
399 
400         unsigned multi4: 1,
401                  multi6: 1,
402                  multi8 :1,
403                  dra: 1,
404                  smp20bit: 1;
405         unsigned in_ac97_init: 1,
406                  in_sdin_init: 1;
407         unsigned in_measurement: 1;     /* during ac97 clock measurement */
408         unsigned fix_nocache: 1;        /* workaround for 440MX */
409         unsigned buggy_irq: 1;          /* workaround for buggy mobos */
410         unsigned xbox: 1;               /* workaround for Xbox AC'97 detection */
411         unsigned buggy_semaphore: 1;    /* workaround for buggy codec semaphore */
412         unsigned inside_vm: 1;          /* enable VM optimization */
413 
414         int spdif_idx;  /* SPDIF BAR index; *_SPBAR or -1 if use PCMOUT */
415         unsigned int sdm_saved; /* SDM reg value */
416 
417         struct snd_ac97_bus *ac97_bus;
418         struct snd_ac97 *ac97[3];
419         unsigned int ac97_sdin[3];
420         unsigned int max_codecs, ncodecs;
421         unsigned int *codec_bit;
422         unsigned int codec_isr_bits;
423         unsigned int codec_ready_bits;
424 
425         spinlock_t reg_lock;
426         
427         u32 bdbars_count;
428         struct snd_dma_buffer bdbars;
429         u32 int_sta_reg;                /* interrupt status register */
430         u32 int_sta_mask;               /* interrupt status mask */
431 };
432 
433 static DEFINE_PCI_DEVICE_TABLE(snd_intel8x0_ids) = {
434         { PCI_VDEVICE(INTEL, 0x2415), DEVICE_INTEL },   /* 82801AA */
435         { PCI_VDEVICE(INTEL, 0x2425), DEVICE_INTEL },   /* 82901AB */
436         { PCI_VDEVICE(INTEL, 0x2445), DEVICE_INTEL },   /* 82801BA */
437         { PCI_VDEVICE(INTEL, 0x2485), DEVICE_INTEL },   /* ICH3 */
438         { PCI_VDEVICE(INTEL, 0x24c5), DEVICE_INTEL_ICH4 }, /* ICH4 */
439         { PCI_VDEVICE(INTEL, 0x24d5), DEVICE_INTEL_ICH4 }, /* ICH5 */
440         { PCI_VDEVICE(INTEL, 0x25a6), DEVICE_INTEL_ICH4 }, /* ESB */
441         { PCI_VDEVICE(INTEL, 0x266e), DEVICE_INTEL_ICH4 }, /* ICH6 */
442         { PCI_VDEVICE(INTEL, 0x27de), DEVICE_INTEL_ICH4 }, /* ICH7 */
443         { PCI_VDEVICE(INTEL, 0x2698), DEVICE_INTEL_ICH4 }, /* ESB2 */
444         { PCI_VDEVICE(INTEL, 0x7195), DEVICE_INTEL },   /* 440MX */
445         { PCI_VDEVICE(SI, 0x7012), DEVICE_SIS },        /* SI7012 */
446         { PCI_VDEVICE(NVIDIA, 0x01b1), DEVICE_NFORCE }, /* NFORCE */
447         { PCI_VDEVICE(NVIDIA, 0x003a), DEVICE_NFORCE }, /* MCP04 */
448         { PCI_VDEVICE(NVIDIA, 0x006a), DEVICE_NFORCE }, /* NFORCE2 */
449         { PCI_VDEVICE(NVIDIA, 0x0059), DEVICE_NFORCE }, /* CK804 */
450         { PCI_VDEVICE(NVIDIA, 0x008a), DEVICE_NFORCE }, /* CK8 */
451         { PCI_VDEVICE(NVIDIA, 0x00da), DEVICE_NFORCE }, /* NFORCE3 */
452         { PCI_VDEVICE(NVIDIA, 0x00ea), DEVICE_NFORCE }, /* CK8S */
453         { PCI_VDEVICE(NVIDIA, 0x026b), DEVICE_NFORCE }, /* MCP51 */
454         { PCI_VDEVICE(AMD, 0x746d), DEVICE_INTEL },     /* AMD8111 */
455         { PCI_VDEVICE(AMD, 0x7445), DEVICE_INTEL },     /* AMD768 */
456         { PCI_VDEVICE(AL, 0x5455), DEVICE_ALI },   /* Ali5455 */
457         { 0, }
458 };
459 
460 MODULE_DEVICE_TABLE(pci, snd_intel8x0_ids);
461 
462 /*
463  *  Lowlevel I/O - busmaster
464  */
465 
466 static inline u8 igetbyte(struct intel8x0 *chip, u32 offset)
467 {
468         return ioread8(chip->bmaddr + offset);
469 }
470 
471 static inline u16 igetword(struct intel8x0 *chip, u32 offset)
472 {
473         return ioread16(chip->bmaddr + offset);
474 }
475 
476 static inline u32 igetdword(struct intel8x0 *chip, u32 offset)
477 {
478         return ioread32(chip->bmaddr + offset);
479 }
480 
481 static inline void iputbyte(struct intel8x0 *chip, u32 offset, u8 val)
482 {
483         iowrite8(val, chip->bmaddr + offset);
484 }
485 
486 static inline void iputword(struct intel8x0 *chip, u32 offset, u16 val)
487 {
488         iowrite16(val, chip->bmaddr + offset);
489 }
490 
491 static inline void iputdword(struct intel8x0 *chip, u32 offset, u32 val)
492 {
493         iowrite32(val, chip->bmaddr + offset);
494 }
495 
496 /*
497  *  Lowlevel I/O - AC'97 registers
498  */
499 
500 static inline u16 iagetword(struct intel8x0 *chip, u32 offset)
501 {
502         return ioread16(chip->addr + offset);
503 }
504 
505 static inline void iaputword(struct intel8x0 *chip, u32 offset, u16 val)
506 {
507         iowrite16(val, chip->addr + offset);
508 }
509 
510 /*
511  *  Basic I/O
512  */
513 
514 /*
515  * access to AC97 codec via normal i/o (for ICH and SIS7012)
516  */
517 
518 static int snd_intel8x0_codec_semaphore(struct intel8x0 *chip, unsigned int codec)
519 {
520         int time;
521         
522         if (codec > 2)
523                 return -EIO;
524         if (chip->in_sdin_init) {
525                 /* we don't know the ready bit assignment at the moment */
526                 /* so we check any */
527                 codec = chip->codec_isr_bits;
528         } else {
529                 codec = chip->codec_bit[chip->ac97_sdin[codec]];
530         }
531 
532         /* codec ready ? */
533         if ((igetdword(chip, ICHREG(GLOB_STA)) & codec) == 0)
534                 return -EIO;
535 
536         if (chip->buggy_semaphore)
537                 return 0; /* just ignore ... */
538 
539         /* Anyone holding a semaphore for 1 msec should be shot... */
540         time = 100;
541         do {
542                 if (!(igetbyte(chip, ICHREG(ACC_SEMA)) & ICH_CAS))
543                         return 0;
544                 udelay(10);
545         } while (time--);
546 
547         /* access to some forbidden (non existent) ac97 registers will not
548          * reset the semaphore. So even if you don't get the semaphore, still
549          * continue the access. We don't need the semaphore anyway. */
550         snd_printk(KERN_ERR "codec_semaphore: semaphore is not ready [0x%x][0x%x]\n",
551                         igetbyte(chip, ICHREG(ACC_SEMA)), igetdword(chip, ICHREG(GLOB_STA)));
552         iagetword(chip, 0);     /* clear semaphore flag */
553         /* I don't care about the semaphore */
554         return -EBUSY;
555 }
556  
557 static void snd_intel8x0_codec_write(struct snd_ac97 *ac97,
558                                      unsigned short reg,
559                                      unsigned short val)
560 {
561         struct intel8x0 *chip = ac97->private_data;
562         
563         if (snd_intel8x0_codec_semaphore(chip, ac97->num) < 0) {
564                 if (! chip->in_ac97_init)
565                         snd_printk(KERN_ERR "codec_write %d: semaphore is not ready for register 0x%x\n", ac97->num, reg);
566         }
567         iaputword(chip, reg + ac97->num * 0x80, val);
568 }
569 
570 static unsigned short snd_intel8x0_codec_read(struct snd_ac97 *ac97,
571                                               unsigned short reg)
572 {
573         struct intel8x0 *chip = ac97->private_data;
574         unsigned short res;
575         unsigned int tmp;
576 
577         if (snd_intel8x0_codec_semaphore(chip, ac97->num) < 0) {
578                 if (! chip->in_ac97_init)
579                         snd_printk(KERN_ERR "codec_read %d: semaphore is not ready for register 0x%x\n", ac97->num, reg);
580                 res = 0xffff;
581         } else {
582                 res = iagetword(chip, reg + ac97->num * 0x80);
583                 if ((tmp = igetdword(chip, ICHREG(GLOB_STA))) & ICH_RCS) {
584                         /* reset RCS and preserve other R/WC bits */
585                         iputdword(chip, ICHREG(GLOB_STA), tmp &
586                                   ~(chip->codec_ready_bits | ICH_GSCI));
587                         if (! chip->in_ac97_init)
588                                 snd_printk(KERN_ERR "codec_read %d: read timeout for register 0x%x\n", ac97->num, reg);
589                         res = 0xffff;
590                 }
591         }
592         return res;
593 }
594 
595 static void __devinit snd_intel8x0_codec_read_test(struct intel8x0 *chip,
596                                                    unsigned int codec)
597 {
598         unsigned int tmp;
599 
600         if (snd_intel8x0_codec_semaphore(chip, codec) >= 0) {
601                 iagetword(chip, codec * 0x80);
602                 if ((tmp = igetdword(chip, ICHREG(GLOB_STA))) & ICH_RCS) {
603                         /* reset RCS and preserve other R/WC bits */
604                         iputdword(chip, ICHREG(GLOB_STA), tmp &
605                                   ~(chip->codec_ready_bits | ICH_GSCI));
606                 }
607         }
608 }
609 
610 /*
611  * access to AC97 for Ali5455
612  */
613 static int snd_intel8x0_ali_codec_ready(struct intel8x0 *chip, int mask)
614 {
615         int count = 0;
616         for (count = 0; count < 0x7f; count++) {
617                 int val = igetbyte(chip, ICHREG(ALI_CSPSR));
618                 if (val & mask)
619                         return 0;
620         }
621         if (! chip->in_ac97_init)
622                 snd_printd(KERN_WARNING "intel8x0: AC97 codec ready timeout.\n");
623         return -EBUSY;
624 }
625 
626 static int snd_intel8x0_ali_codec_semaphore(struct intel8x0 *chip)
627 {
628         int time = 100;
629         if (chip->buggy_semaphore)
630                 return 0; /* just ignore ... */
631         while (--time && (igetdword(chip, ICHREG(ALI_CAS)) & ALI_CAS_SEM_BUSY))
632                 udelay(1);
633         if (! time && ! chip->in_ac97_init)
634                 snd_printk(KERN_WARNING "ali_codec_semaphore timeout\n");
635         return snd_intel8x0_ali_codec_ready(chip, ALI_CSPSR_CODEC_READY);
636 }
637 
638 static unsigned short snd_intel8x0_ali_codec_read(struct snd_ac97 *ac97, unsigned short reg)
639 {
640         struct intel8x0 *chip = ac97->private_data;
641         unsigned short data = 0xffff;
642 
643         if (snd_intel8x0_ali_codec_semaphore(chip))
644                 goto __err;
645         reg |= ALI_CPR_ADDR_READ;
646         if (ac97->num)
647                 reg |= ALI_CPR_ADDR_SECONDARY;
648         iputword(chip, ICHREG(ALI_CPR_ADDR), reg);
649         if (snd_intel8x0_ali_codec_ready(chip, ALI_CSPSR_READ_OK))
650                 goto __err;
651         data = igetword(chip, ICHREG(ALI_SPR));
652  __err:
653         return data;
654 }
655 
656 static void snd_intel8x0_ali_codec_write(struct snd_ac97 *ac97, unsigned short reg,
657                                          unsigned short val)
658 {
659         struct intel8x0 *chip = ac97->private_data;
660 
661         if (snd_intel8x0_ali_codec_semaphore(chip))
662                 return;
663         iputword(chip, ICHREG(ALI_CPR), val);
664         if (ac97->num)
665                 reg |= ALI_CPR_ADDR_SECONDARY;
666         iputword(chip, ICHREG(ALI_CPR_ADDR), reg);
667         snd_intel8x0_ali_codec_ready(chip, ALI_CSPSR_WRITE_OK);
668 }
669 
670 
671 /*
672  * DMA I/O
673  */
674 static void snd_intel8x0_setup_periods(struct intel8x0 *chip, struct ichdev *ichdev) 
675 {
676         int idx;
677         u32 *bdbar = ichdev->bdbar;
678         unsigned long port = ichdev->reg_offset;
679 
680         iputdword(chip, port + ICH_REG_OFF_BDBAR, ichdev->bdbar_addr);
681         if (ichdev->size == ichdev->fragsize) {
682                 ichdev->ack_reload = ichdev->ack = 2;
683                 ichdev->fragsize1 = ichdev->fragsize >> 1;
684                 for (idx = 0; idx < (ICH_REG_LVI_MASK + 1) * 2; idx += 4) {
685                         bdbar[idx + 0] = cpu_to_le32(ichdev->physbuf);
686                         bdbar[idx + 1] = cpu_to_le32(0x80000000 | /* interrupt on completion */
687                                                      ichdev->fragsize1 >> ichdev->pos_shift);
688                         bdbar[idx + 2] = cpu_to_le32(ichdev->physbuf + (ichdev->size >> 1));
689                         bdbar[idx + 3] = cpu_to_le32(0x80000000 | /* interrupt on completion */
690                                                      ichdev->fragsize1 >> ichdev->pos_shift);
691                 }
692                 ichdev->frags = 2;
693         } else {
694                 ichdev->ack_reload = ichdev->ack = 1;
695                 ichdev->fragsize1 = ichdev->fragsize;
696                 for (idx = 0; idx < (ICH_REG_LVI_MASK + 1) * 2; idx += 2) {
697                         bdbar[idx + 0] = cpu_to_le32(ichdev->physbuf +
698                                                      (((idx >> 1) * ichdev->fragsize) %
699                                                       ichdev->size));
700                         bdbar[idx + 1] = cpu_to_le32(0x80000000 | /* interrupt on completion */
701                                                      ichdev->fragsize >> ichdev->pos_shift);
702 #if 0
703                         printk(KERN_DEBUG "bdbar[%i] = 0x%x [0x%x]\n",
704                                idx + 0, bdbar[idx + 0], bdbar[idx + 1]);
705 #endif
706                 }
707                 ichdev->frags = ichdev->size / ichdev->fragsize;
708         }
709         iputbyte(chip, port + ICH_REG_OFF_LVI, ichdev->lvi = ICH_REG_LVI_MASK);
710         ichdev->civ = 0;
711         iputbyte(chip, port + ICH_REG_OFF_CIV, 0);
712         ichdev->lvi_frag = ICH_REG_LVI_MASK % ichdev->frags;
713         ichdev->position = 0;
714 #if 0
715         printk(KERN_DEBUG "lvi_frag = %i, frags = %i, period_size = 0x%x, "
716                "period_size1 = 0x%x\n",
717                ichdev->lvi_frag, ichdev->frags, ichdev->fragsize,
718                ichdev->fragsize1);
719 #endif
720         /* clear interrupts */
721         iputbyte(chip, port + ichdev->roff_sr, ICH_FIFOE | ICH_BCIS | ICH_LVBCI);
722 }
723 
724 #ifdef __i386__
725 /*
726  * Intel 82443MX running a 100MHz processor system bus has a hardware bug,
727  * which aborts PCI busmaster for audio transfer.  A workaround is to set
728  * the pages as non-cached.  For details, see the errata in
729  *      http://download.intel.com/design/chipsets/specupdt/24505108.pdf
730  */
731 static void fill_nocache(void *buf, int size, int nocache)
732 {
733         size = (size + PAGE_SIZE - 1) >> PAGE_SHIFT;
734         if (nocache)
735                 set_pages_uc(virt_to_page(buf), size);
736         else
737                 set_pages_wb(virt_to_page(buf), size);
738 }
739 #else
740 #define fill_nocache(buf, size, nocache) do { ; } while (0)
741 #endif
742 
743 /*
744  *  Interrupt handler
745  */
746 
747 static inline void snd_intel8x0_update(struct intel8x0 *chip, struct ichdev *ichdev)
748 {
749         unsigned long port = ichdev->reg_offset;
750         unsigned long flags;
751         int status, civ, i, step;
752         int ack = 0;
753 
754         spin_lock_irqsave(&chip->reg_lock, flags);
755         status = igetbyte(chip, port + ichdev->roff_sr);
756         civ = igetbyte(chip, port + ICH_REG_OFF_CIV);
757         if (!(status & ICH_BCIS)) {
758                 step = 0;
759         } else if (civ == ichdev->civ) {
760                 // snd_printd("civ same %d\n", civ);
761                 step = 1;
762                 ichdev->civ++;
763                 ichdev->civ &= ICH_REG_LVI_MASK;
764         } else {
765                 step = civ - ichdev->civ;
766                 if (step < 0)
767                         step += ICH_REG_LVI_MASK + 1;
768                 // if (step != 1)
769                 //      snd_printd("step = %d, %d -> %d\n", step, ichdev->civ, civ);
770                 ichdev->civ = civ;
771         }
772 
773         ichdev->position += step * ichdev->fragsize1;
774         if (! chip->in_measurement)
775                 ichdev->position %= ichdev->size;
776         ichdev->lvi += step;
777         ichdev->lvi &= ICH_REG_LVI_MASK;
778         iputbyte(chip, port + ICH_REG_OFF_LVI, ichdev->lvi);
779         for (i = 0; i < step; i++) {
780                 ichdev->lvi_frag++;
781                 ichdev->lvi_frag %= ichdev->frags;
782                 ichdev->bdbar[ichdev->lvi * 2] = cpu_to_le32(ichdev->physbuf + ichdev->lvi_frag * ichdev->fragsize1);
783 #if 0
784         printk(KERN_DEBUG "new: bdbar[%i] = 0x%x [0x%x], prefetch = %i, "
785                "all = 0x%x, 0x%x\n",
786                ichdev->lvi * 2, ichdev->bdbar[ichdev->lvi * 2],
787                ichdev->bdbar[ichdev->lvi * 2 + 1], inb(ICH_REG_OFF_PIV + port),
788                inl(port + 4), inb(port + ICH_REG_OFF_CR));
789 #endif
790                 if (--ichdev->ack == 0) {
791                         ichdev->ack = ichdev->ack_reload;
792                         ack = 1;
793                 }
794         }
795         spin_unlock_irqrestore(&chip->reg_lock, flags);
796         if (ack && ichdev->substream) {
797                 snd_pcm_period_elapsed(ichdev->substream);
798         }
799         iputbyte(chip, port + ichdev->roff_sr,
800                  status & (ICH_FIFOE | ICH_BCIS | ICH_LVBCI));
801 }
802 
803 static irqreturn_t snd_intel8x0_interrupt(int irq, void *dev_id)
804 {
805         struct intel8x0 *chip = dev_id;
806         struct ichdev *ichdev;
807         unsigned int status;
808         unsigned int i;
809 
810         status = igetdword(chip, chip->int_sta_reg);
811         if (status == 0xffffffff)       /* we are not yet resumed */
812                 return IRQ_NONE;
813 
814         if ((status & chip->int_sta_mask) == 0) {
815                 if (status) {
816                         /* ack */
817                         iputdword(chip, chip->int_sta_reg, status);
818                         if (! chip->buggy_irq)
819                                 status = 0;
820                 }
821                 return IRQ_RETVAL(status);
822         }
823 
824         for (i = 0; i < chip->bdbars_count; i++) {
825                 ichdev = &chip->ichd[i];
826                 if (status & ichdev->int_sta_mask)
827                         snd_intel8x0_update(chip, ichdev);
828         }
829 
830         /* ack them */
831         iputdword(chip, chip->int_sta_reg, status & chip->int_sta_mask);
832         
833         return IRQ_HANDLED;
834 }
835 
836 /*
837  *  PCM part
838  */
839 
840 static int snd_intel8x0_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
841 {
842         struct intel8x0 *chip = snd_pcm_substream_chip(substream);
843         struct ichdev *ichdev = get_ichdev(substream);
844         unsigned char val = 0;
845         unsigned long port = ichdev->reg_offset;
846 
847         switch (cmd) {
848         case SNDRV_PCM_TRIGGER_RESUME:
849                 ichdev->suspended = 0;
850                 /* fallthru */
851         case SNDRV_PCM_TRIGGER_START:
852         case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
853                 val = ICH_IOCE | ICH_STARTBM;
854                 ichdev->last_pos = ichdev->position;
855                 break;
856         case SNDRV_PCM_TRIGGER_SUSPEND:
857                 ichdev->suspended = 1;
858                 /* fallthru */
859         case SNDRV_PCM_TRIGGER_STOP:
860                 val = 0;
861                 break;
862         case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
863                 val = ICH_IOCE;
864                 break;
865         default:
866                 return -EINVAL;
867         }
868         iputbyte(chip, port + ICH_REG_OFF_CR, val);
869         if (cmd == SNDRV_PCM_TRIGGER_STOP) {
870                 /* wait until DMA stopped */
871                 while (!(igetbyte(chip, port + ichdev->roff_sr) & ICH_DCH)) ;
872                 /* reset whole DMA things */
873                 iputbyte(chip, port + ICH_REG_OFF_CR, ICH_RESETREGS);
874         }
875         return 0;
876 }
877 
878 static int snd_intel8x0_ali_trigger(struct snd_pcm_substream *substream, int cmd)
879 {
880         struct intel8x0 *chip = snd_pcm_substream_chip(substream);
881         struct ichdev *ichdev = get_ichdev(substream);
882         unsigned long port = ichdev->reg_offset;
883         static int fiforeg[] = {
884                 ICHREG(ALI_FIFOCR1), ICHREG(ALI_FIFOCR2), ICHREG(ALI_FIFOCR3)
885         };
886         unsigned int val, fifo;
887 
888         val = igetdword(chip, ICHREG(ALI_DMACR));
889         switch (cmd) {
890         case SNDRV_PCM_TRIGGER_RESUME:
891                 ichdev->suspended = 0;
892                 /* fallthru */
893         case SNDRV_PCM_TRIGGER_START:
894         case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
895                 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
896                         /* clear FIFO for synchronization of channels */
897                         fifo = igetdword(chip, fiforeg[ichdev->ali_slot / 4]);
898                         fifo &= ~(0xff << (ichdev->ali_slot % 4));  
899                         fifo |= 0x83 << (ichdev->ali_slot % 4); 
900                         iputdword(chip, fiforeg[ichdev->ali_slot / 4], fifo);
901                 }
902                 iputbyte(chip, port + ICH_REG_OFF_CR, ICH_IOCE);
903                 val &= ~(1 << (ichdev->ali_slot + 16)); /* clear PAUSE flag */
904                 /* start DMA */
905                 iputdword(chip, ICHREG(ALI_DMACR), val | (1 << ichdev->ali_slot));
906                 break;
907         case SNDRV_PCM_TRIGGER_SUSPEND:
908                 ichdev->suspended = 1;
909                 /* fallthru */
910         case SNDRV_PCM_TRIGGER_STOP:
911         case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
912                 /* pause */
913                 iputdword(chip, ICHREG(ALI_DMACR), val | (1 << (ichdev->ali_slot + 16)));
914                 iputbyte(chip, port + ICH_REG_OFF_CR, 0);
915                 while (igetbyte(chip, port + ICH_REG_OFF_CR))
916                         ;
917                 if (cmd == SNDRV_PCM_TRIGGER_PAUSE_PUSH)
918                         break;
919                 /* reset whole DMA things */
920                 iputbyte(chip, port + ICH_REG_OFF_CR, ICH_RESETREGS);
921                 /* clear interrupts */
922                 iputbyte(chip, port + ICH_REG_OFF_SR,
923                          igetbyte(chip, port + ICH_REG_OFF_SR) | 0x1e);
924                 iputdword(chip, ICHREG(ALI_INTERRUPTSR),
925                           igetdword(chip, ICHREG(ALI_INTERRUPTSR)) & ichdev->int_sta_mask);
926                 break;
927         default:
928                 return -EINVAL;
929         }
930         return 0;
931 }
932 
933 static int snd_intel8x0_hw_params(struct snd_pcm_substream *substream,
934                                   struct snd_pcm_hw_params *hw_params)
935 {
936         struct intel8x0 *chip = snd_pcm_substream_chip(substream);
937         struct ichdev *ichdev = get_ichdev(substream);
938         struct snd_pcm_runtime *runtime = substream->runtime;
939         int dbl = params_rate(hw_params) > 48000;
940         int err;
941 
942         if (chip->fix_nocache && ichdev->page_attr_changed) {
943                 fill_nocache(runtime->dma_area, runtime->dma_bytes, 0); /* clear */
944                 ichdev->page_attr_changed = 0;
945         }
946         err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
947         if (err < 0)
948                 return err;
949         if (chip->fix_nocache) {
950                 if (runtime->dma_area && ! ichdev->page_attr_changed) {
951                         fill_nocache(runtime->dma_area, runtime->dma_bytes, 1);
952                         ichdev->page_attr_changed = 1;
953                 }
954         }
955         if (ichdev->pcm_open_flag) {
956                 snd_ac97_pcm_close(ichdev->pcm);
957                 ichdev->pcm_open_flag = 0;
958         }
959         err = snd_ac97_pcm_open(ichdev->pcm, params_rate(hw_params),
960                                 params_channels(hw_params),
961                                 ichdev->pcm->r[dbl].slots);
962         if (err >= 0) {
963                 ichdev->pcm_open_flag = 1;
964                 /* Force SPDIF setting */
965                 if (ichdev->ichd == ICHD_PCMOUT && chip->spdif_idx < 0)
966                         snd_ac97_set_rate(ichdev->pcm->r[0].codec[0], AC97_SPDIF,
967                                           params_rate(hw_params));
968         }
969         return err;
970 }
971 
972 static int snd_intel8x0_hw_free(struct snd_pcm_substream *substream)
973 {
974         struct intel8x0 *chip = snd_pcm_substream_chip(substream);
975         struct ichdev *ichdev = get_ichdev(substream);
976 
977         if (ichdev->pcm_open_flag) {
978                 snd_ac97_pcm_close(ichdev->pcm);
979                 ichdev->pcm_open_flag = 0;
980         }
981         if (chip->fix_nocache && ichdev->page_attr_changed) {
982                 fill_nocache(substream->runtime->dma_area, substream->runtime->dma_bytes, 0);
983                 ichdev->page_attr_changed = 0;
984         }
985         return snd_pcm_lib_free_pages(substream);
986 }
987 
988 static void snd_intel8x0_setup_pcm_out(struct intel8x0 *chip,
989                                        struct snd_pcm_runtime *runtime)
990 {
991         unsigned int cnt;
992         int dbl = runtime->rate > 48000;
993 
994         spin_lock_irq(&chip->reg_lock);
995         switch (chip->device_type) {
996         case DEVICE_ALI:
997                 cnt = igetdword(chip, ICHREG(ALI_SCR));
998                 cnt &= ~ICH_ALI_SC_PCM_246_MASK;
999                 if (runtime->channels == 4 || dbl)
1000                         cnt |= ICH_ALI_SC_PCM_4;
1001                 else if (runtime->channels == 6)
1002                         cnt |= ICH_ALI_SC_PCM_6;
1003                 iputdword(chip, ICHREG(ALI_SCR), cnt);
1004                 break;
1005         case DEVICE_SIS:
1006                 cnt = igetdword(chip, ICHREG(GLOB_CNT));
1007                 cnt &= ~ICH_SIS_PCM_246_MASK;
1008                 if (runtime->channels == 4 || dbl)
1009                         cnt |= ICH_SIS_PCM_4;
1010                 else if (runtime->channels == 6)
1011                         cnt |= ICH_SIS_PCM_6;
1012                 iputdword(chip, ICHREG(GLOB_CNT), cnt);
1013                 break;
1014         default:
1015                 cnt = igetdword(chip, ICHREG(GLOB_CNT));
1016                 cnt &= ~(ICH_PCM_246_MASK | ICH_PCM_20BIT);
1017                 if (runtime->channels == 4 || dbl)
1018                         cnt |= ICH_PCM_4;
1019                 else if (runtime->channels == 6)
1020                         cnt |= ICH_PCM_6;
1021                 else if (runtime->channels == 8)
1022                         cnt |= ICH_PCM_8;
1023                 if (chip->device_type == DEVICE_NFORCE) {
1024                         /* reset to 2ch once to keep the 6 channel data in alignment,
1025                          * to start from Front Left always
1026                          */
1027                         if (cnt & ICH_PCM_246_MASK) {
1028                                 iputdword(chip, ICHREG(GLOB_CNT), cnt & ~ICH_PCM_246_MASK);
1029                                 spin_unlock_irq(&chip->reg_lock);
1030                                 msleep(50); /* grrr... */
1031                                 spin_lock_irq(&chip->reg_lock);
1032                         }
1033                 } else if (chip->device_type == DEVICE_INTEL_ICH4) {
1034                         if (runtime->sample_bits > 16)
1035                                 cnt |= ICH_PCM_20BIT;
1036                 }
1037                 iputdword(chip, ICHREG(GLOB_CNT), cnt);
1038                 break;
1039         }
1040         spin_unlock_irq(&chip->reg_lock);
1041 }
1042 
1043 static int snd_intel8x0_pcm_prepare(struct snd_pcm_substream *substream)
1044 {
1045         struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1046         struct snd_pcm_runtime *runtime = substream->runtime;
1047         struct ichdev *ichdev = get_ichdev(substream);
1048 
1049         ichdev->physbuf = runtime->dma_addr;
1050         ichdev->size = snd_pcm_lib_buffer_bytes(substream);
1051         ichdev->fragsize = snd_pcm_lib_period_bytes(substream);
1052         if (ichdev->ichd == ICHD_PCMOUT) {
1053                 snd_intel8x0_setup_pcm_out(chip, runtime);
1054                 if (chip->device_type == DEVICE_INTEL_ICH4)
1055                         ichdev->pos_shift = (runtime->sample_bits > 16) ? 2 : 1;
1056         }
1057         snd_intel8x0_setup_periods(chip, ichdev);
1058         return 0;
1059 }
1060 
1061 static snd_pcm_uframes_t snd_intel8x0_pcm_pointer(struct snd_pcm_substream *substream)
1062 {
1063         struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1064         struct ichdev *ichdev = get_ichdev(substream);
1065         size_t ptr1, ptr;
1066         int civ, timeout = 10;
1067         unsigned int position;
1068 
1069         spin_lock(&chip->reg_lock);
1070         do {
1071                 civ = igetbyte(chip, ichdev->reg_offset + ICH_REG_OFF_CIV);
1072                 ptr1 = igetword(chip, ichdev->reg_offset + ichdev->roff_picb);
1073                 position = ichdev->position;
1074                 if (ptr1 == 0) {
1075                         udelay(10);
1076                         continue;
1077                 }
1078                 if (civ != igetbyte(chip, ichdev->reg_offset + ICH_REG_OFF_CIV))
1079                         continue;
1080 
1081                 /* IO read operation is very expensive inside virtual machine
1082                  * as it is emulated. The probability that subsequent PICB read
1083                  * will return different result is high enough to loop till
1084                  * timeout here.
1085                  * Same CIV is strict enough condition to be sure that PICB
1086                  * is valid inside VM on emulated card. */
1087                 if (chip->inside_vm)
1088                         break;
1089                 if (ptr1 == igetword(chip, ichdev->reg_offset + ichdev->roff_picb))
1090                         break;
1091         } while (timeout--);
1092         ptr = ichdev->last_pos;
1093         if (ptr1 != 0) {
1094                 ptr1 <<= ichdev->pos_shift;
1095                 ptr = ichdev->fragsize1 - ptr1;
1096                 ptr += position;
1097                 if (ptr < ichdev->last_pos) {
1098                         unsigned int pos_base, last_base;
1099                         pos_base = position / ichdev->fragsize1;
1100                         last_base = ichdev->last_pos / ichdev->fragsize1;
1101                         /* another sanity check; ptr1 can go back to full
1102                          * before the base position is updated
1103                          */
1104                         if (pos_base == last_base)
1105                                 ptr = ichdev->last_pos;
1106                 }
1107         }
1108         ichdev->last_pos = ptr;
1109         spin_unlock(&chip->reg_lock);
1110         if (ptr >= ichdev->size)
1111                 return 0;
1112         return bytes_to_frames(substream->runtime, ptr);
1113 }
1114 
1115 static struct snd_pcm_hardware snd_intel8x0_stream =
1116 {
1117         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1118                                  SNDRV_PCM_INFO_BLOCK_TRANSFER |
1119                                  SNDRV_PCM_INFO_MMAP_VALID |
1120                                  SNDRV_PCM_INFO_PAUSE |
1121                                  SNDRV_PCM_INFO_RESUME),
1122         .formats =              SNDRV_PCM_FMTBIT_S16_LE,
1123         .rates =                SNDRV_PCM_RATE_48000,
1124         .rate_min =             48000,
1125         .rate_max =             48000,
1126         .channels_min =         2,
1127         .channels_max =         2,
1128         .buffer_bytes_max =     128 * 1024,
1129         .period_bytes_min =     32,
1130         .period_bytes_max =     128 * 1024,
1131         .periods_min =          1,
1132         .periods_max =          1024,
1133         .fifo_size =            0,
1134 };
1135 
1136 static unsigned int channels4[] = {
1137         2, 4,
1138 };
1139 
1140 static struct snd_pcm_hw_constraint_list hw_constraints_channels4 = {
1141         .count = ARRAY_SIZE(channels4),
1142         .list = channels4,
1143         .mask = 0,
1144 };
1145 
1146 static unsigned int channels6[] = {
1147         2, 4, 6,
1148 };
1149 
1150 static struct snd_pcm_hw_constraint_list hw_constraints_channels6 = {
1151         .count = ARRAY_SIZE(channels6),
1152         .list = channels6,
1153         .mask = 0,
1154 };
1155 
1156 static unsigned int channels8[] = {
1157         2, 4, 6, 8,
1158 };
1159 
1160 static struct snd_pcm_hw_constraint_list hw_constraints_channels8 = {
1161         .count = ARRAY_SIZE(channels8),
1162         .list = channels8,
1163         .mask = 0,
1164 };
1165 
1166 static int snd_intel8x0_pcm_open(struct snd_pcm_substream *substream, struct ichdev *ichdev)
1167 {
1168         struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1169         struct snd_pcm_runtime *runtime = substream->runtime;
1170         int err;
1171 
1172         ichdev->substream = substream;
1173         runtime->hw = snd_intel8x0_stream;
1174         runtime->hw.rates = ichdev->pcm->rates;
1175         snd_pcm_limit_hw_rates(runtime);
1176         if (chip->device_type == DEVICE_SIS) {
1177                 runtime->hw.buffer_bytes_max = 64*1024;
1178                 runtime->hw.period_bytes_max = 64*1024;
1179         }
1180         if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
1181                 return err;
1182         runtime->private_data = ichdev;
1183         return 0;
1184 }
1185 
1186 static int snd_intel8x0_playback_open(struct snd_pcm_substream *substream)
1187 {
1188         struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1189         struct snd_pcm_runtime *runtime = substream->runtime;
1190         int err;
1191 
1192         err = snd_intel8x0_pcm_open(substream, &chip->ichd[ICHD_PCMOUT]);
1193         if (err < 0)
1194                 return err;
1195 
1196         if (chip->multi8) {
1197                 runtime->hw.channels_max = 8;
1198                 snd_pcm_hw_constraint_list(runtime, 0,
1199                                                 SNDRV_PCM_HW_PARAM_CHANNELS,
1200                                                 &hw_constraints_channels8);
1201         } else if (chip->multi6) {
1202                 runtime->hw.channels_max = 6;
1203                 snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
1204                                            &hw_constraints_channels6);
1205         } else if (chip->multi4) {
1206                 runtime->hw.channels_max = 4;
1207                 snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
1208                                            &hw_constraints_channels4);
1209         }
1210         if (chip->dra) {
1211                 snd_ac97_pcm_double_rate_rules(runtime);
1212         }
1213         if (chip->smp20bit) {
1214                 runtime->hw.formats |= SNDRV_PCM_FMTBIT_S32_LE;
1215                 snd_pcm_hw_constraint_msbits(runtime, 0, 32, 20);
1216         }
1217         return 0;
1218 }
1219 
1220 static int snd_intel8x0_playback_close(struct snd_pcm_substream *substream)
1221 {
1222         struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1223 
1224         chip->ichd[ICHD_PCMOUT].substream = NULL;
1225         return 0;
1226 }
1227 
1228 static int snd_intel8x0_capture_open(struct snd_pcm_substream *substream)
1229 {
1230         struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1231 
1232         return snd_intel8x0_pcm_open(substream, &chip->ichd[ICHD_PCMIN]);
1233 }
1234 
1235 static int snd_intel8x0_capture_close(struct snd_pcm_substream *substream)
1236 {
1237         struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1238 
1239         chip->ichd[ICHD_PCMIN].substream = NULL;
1240         return 0;
1241 }
1242 
1243 static int snd_intel8x0_mic_open(struct snd_pcm_substream *substream)
1244 {
1245         struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1246 
1247         return snd_intel8x0_pcm_open(substream, &chip->ichd[ICHD_MIC]);
1248 }
1249 
1250 static int snd_intel8x0_mic_close(struct snd_pcm_substream *substream)
1251 {
1252         struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1253 
1254         chip->ichd[ICHD_MIC].substream = NULL;
1255         return 0;
1256 }
1257 
1258 static int snd_intel8x0_mic2_open(struct snd_pcm_substream *substream)
1259 {
1260         struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1261 
1262         return snd_intel8x0_pcm_open(substream, &chip->ichd[ICHD_MIC2]);
1263 }
1264 
1265 static int snd_intel8x0_mic2_close(struct snd_pcm_substream *substream)
1266 {
1267         struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1268 
1269         chip->ichd[ICHD_MIC2].substream = NULL;
1270         return 0;
1271 }
1272 
1273 static int snd_intel8x0_capture2_open(struct snd_pcm_substream *substream)
1274 {
1275         struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1276 
1277         return snd_intel8x0_pcm_open(substream, &chip->ichd[ICHD_PCM2IN]);
1278 }
1279 
1280 static int snd_intel8x0_capture2_close(struct snd_pcm_substream *substream)
1281 {
1282         struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1283 
1284         chip->ichd[ICHD_PCM2IN].substream = NULL;
1285         return 0;
1286 }
1287 
1288 static int snd_intel8x0_spdif_open(struct snd_pcm_substream *substream)
1289 {
1290         struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1291         int idx = chip->device_type == DEVICE_NFORCE ? NVD_SPBAR : ICHD_SPBAR;
1292 
1293         return snd_intel8x0_pcm_open(substream, &chip->ichd[idx]);
1294 }
1295 
1296 static int snd_intel8x0_spdif_close(struct snd_pcm_substream *substream)
1297 {
1298         struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1299         int idx = chip->device_type == DEVICE_NFORCE ? NVD_SPBAR : ICHD_SPBAR;
1300 
1301         chip->ichd[idx].substream = NULL;
1302         return 0;
1303 }
1304 
1305 static int snd_intel8x0_ali_ac97spdifout_open(struct snd_pcm_substream *substream)
1306 {
1307         struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1308         unsigned int val;
1309 
1310         spin_lock_irq(&chip->reg_lock);
1311         val = igetdword(chip, ICHREG(ALI_INTERFACECR));
1312         val |= ICH_ALI_IF_AC97SP;
1313         iputdword(chip, ICHREG(ALI_INTERFACECR), val);
1314         /* also needs to set ALI_SC_CODEC_SPDF correctly */
1315         spin_unlock_irq(&chip->reg_lock);
1316 
1317         return snd_intel8x0_pcm_open(substream, &chip->ichd[ALID_AC97SPDIFOUT]);
1318 }
1319 
1320 static int snd_intel8x0_ali_ac97spdifout_close(struct snd_pcm_substream *substream)
1321 {
1322         struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1323         unsigned int val;
1324 
1325         chip->ichd[ALID_AC97SPDIFOUT].substream = NULL;
1326         spin_lock_irq(&chip->reg_lock);
1327         val = igetdword(chip, ICHREG(ALI_INTERFACECR));
1328         val &= ~ICH_ALI_IF_AC97SP;
1329         iputdword(chip, ICHREG(ALI_INTERFACECR), val);
1330         spin_unlock_irq(&chip->reg_lock);
1331 
1332         return 0;
1333 }
1334 
1335 #if 0 // NYI
1336 static int snd_intel8x0_ali_spdifin_open(struct snd_pcm_substream *substream)
1337 {
1338         struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1339 
1340         return snd_intel8x0_pcm_open(substream, &chip->ichd[ALID_SPDIFIN]);
1341 }
1342 
1343 static int snd_intel8x0_ali_spdifin_close(struct snd_pcm_substream *substream)
1344 {
1345         struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1346 
1347         chip->ichd[ALID_SPDIFIN].substream = NULL;
1348         return 0;
1349 }
1350 
1351 static int snd_intel8x0_ali_spdifout_open(struct snd_pcm_substream *substream)
1352 {
1353         struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1354 
1355         return snd_intel8x0_pcm_open(substream, &chip->ichd[ALID_SPDIFOUT]);
1356 }
1357 
1358 static int snd_intel8x0_ali_spdifout_close(struct snd_pcm_substream *substream)
1359 {
1360         struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1361 
1362         chip->ichd[ALID_SPDIFOUT].substream = NULL;
1363         return 0;
1364 }
1365 #endif
1366 
1367 static struct snd_pcm_ops snd_intel8x0_playback_ops = {
1368         .open =         snd_intel8x0_playback_open,
1369         .close =        snd_intel8x0_playback_close,
1370         .ioctl =        snd_pcm_lib_ioctl,
1371         .hw_params =    snd_intel8x0_hw_params,
1372         .hw_free =      snd_intel8x0_hw_free,
1373         .prepare =      snd_intel8x0_pcm_prepare,
1374         .trigger =      snd_intel8x0_pcm_trigger,
1375         .pointer =      snd_intel8x0_pcm_pointer,
1376 };
1377 
1378 static struct snd_pcm_ops snd_intel8x0_capture_ops = {
1379         .open =         snd_intel8x0_capture_open,
1380         .close =        snd_intel8x0_capture_close,
1381         .ioctl =        snd_pcm_lib_ioctl,
1382         .hw_params =    snd_intel8x0_hw_params,
1383         .hw_free =      snd_intel8x0_hw_free,
1384         .prepare =      snd_intel8x0_pcm_prepare,
1385         .trigger =      snd_intel8x0_pcm_trigger,
1386         .pointer =      snd_intel8x0_pcm_pointer,
1387 };
1388 
1389 static struct snd_pcm_ops snd_intel8x0_capture_mic_ops = {
1390         .open =         snd_intel8x0_mic_open,
1391         .close =        snd_intel8x0_mic_close,
1392         .ioctl =        snd_pcm_lib_ioctl,
1393         .hw_params =    snd_intel8x0_hw_params,
1394         .hw_free =      snd_intel8x0_hw_free,
1395         .prepare =      snd_intel8x0_pcm_prepare,
1396         .trigger =      snd_intel8x0_pcm_trigger,
1397         .pointer =      snd_intel8x0_pcm_pointer,
1398 };
1399 
1400 static struct snd_pcm_ops snd_intel8x0_capture_mic2_ops = {
1401         .open =         snd_intel8x0_mic2_open,
1402         .close =        snd_intel8x0_mic2_close,
1403         .ioctl =        snd_pcm_lib_ioctl,
1404         .hw_params =    snd_intel8x0_hw_params,
1405         .hw_free =      snd_intel8x0_hw_free,
1406         .prepare =      snd_intel8x0_pcm_prepare,
1407         .trigger =      snd_intel8x0_pcm_trigger,
1408         .pointer =      snd_intel8x0_pcm_pointer,
1409 };
1410 
1411 static struct snd_pcm_ops snd_intel8x0_capture2_ops = {
1412         .open =         snd_intel8x0_capture2_open,
1413         .close =        snd_intel8x0_capture2_close,
1414         .ioctl =        snd_pcm_lib_ioctl,
1415         .hw_params =    snd_intel8x0_hw_params,
1416         .hw_free =      snd_intel8x0_hw_free,
1417         .prepare =      snd_intel8x0_pcm_prepare,
1418         .trigger =      snd_intel8x0_pcm_trigger,
1419         .pointer =      snd_intel8x0_pcm_pointer,
1420 };
1421 
1422 static struct snd_pcm_ops snd_intel8x0_spdif_ops = {
1423         .open =         snd_intel8x0_spdif_open,
1424         .close =        snd_intel8x0_spdif_close,
1425         .ioctl =        snd_pcm_lib_ioctl,
1426         .hw_params =    snd_intel8x0_hw_params,
1427         .hw_free =      snd_intel8x0_hw_free,
1428         .prepare =      snd_intel8x0_pcm_prepare,
1429         .trigger =      snd_intel8x0_pcm_trigger,
1430         .pointer =      snd_intel8x0_pcm_pointer,
1431 };
1432 
1433 static struct snd_pcm_ops snd_intel8x0_ali_playback_ops = {
1434         .open =         snd_intel8x0_playback_open,
1435         .close =        snd_intel8x0_playback_close,
1436         .ioctl =        snd_pcm_lib_ioctl,
1437         .hw_params =    snd_intel8x0_hw_params,
1438         .hw_free =      snd_intel8x0_hw_free,
1439         .prepare =      snd_intel8x0_pcm_prepare,
1440         .trigger =      snd_intel8x0_ali_trigger,
1441         .pointer =      snd_intel8x0_pcm_pointer,
1442 };
1443 
1444 static struct snd_pcm_ops snd_intel8x0_ali_capture_ops = {
1445         .open =         snd_intel8x0_capture_open,
1446         .close =        snd_intel8x0_capture_close,
1447         .ioctl =        snd_pcm_lib_ioctl,
1448         .hw_params =    snd_intel8x0_hw_params,
1449         .hw_free =      snd_intel8x0_hw_free,
1450         .prepare =      snd_intel8x0_pcm_prepare,
1451         .trigger =      snd_intel8x0_ali_trigger,
1452         .pointer =      snd_intel8x0_pcm_pointer,
1453 };
1454 
1455 static struct snd_pcm_ops snd_intel8x0_ali_capture_mic_ops = {
1456         .open =         snd_intel8x0_mic_open,
1457         .close =        snd_intel8x0_mic_close,
1458         .ioctl =        snd_pcm_lib_ioctl,
1459         .hw_params =    snd_intel8x0_hw_params,
1460         .hw_free =      snd_intel8x0_hw_free,
1461         .prepare =      snd_intel8x0_pcm_prepare,
1462         .trigger =      snd_intel8x0_ali_trigger,
1463         .pointer =      snd_intel8x0_pcm_pointer,
1464 };
1465 
1466 static struct snd_pcm_ops snd_intel8x0_ali_ac97spdifout_ops = {
1467         .open =         snd_intel8x0_ali_ac97spdifout_open,
1468         .close =        snd_intel8x0_ali_ac97spdifout_close,
1469         .ioctl =        snd_pcm_lib_ioctl,
1470         .hw_params =    snd_intel8x0_hw_params,
1471         .hw_free =      snd_intel8x0_hw_free,
1472         .prepare =      snd_intel8x0_pcm_prepare,
1473         .trigger =      snd_intel8x0_ali_trigger,
1474         .pointer =      snd_intel8x0_pcm_pointer,
1475 };
1476 
1477 #if 0 // NYI
1478 static struct snd_pcm_ops snd_intel8x0_ali_spdifin_ops = {
1479         .open =         snd_intel8x0_ali_spdifin_open,
1480         .close =        snd_intel8x0_ali_spdifin_close,
1481         .ioctl =        snd_pcm_lib_ioctl,
1482         .hw_params =    snd_intel8x0_hw_params,
1483         .hw_free =      snd_intel8x0_hw_free,
1484         .prepare =      snd_intel8x0_pcm_prepare,
1485         .trigger =      snd_intel8x0_pcm_trigger,
1486         .pointer =      snd_intel8x0_pcm_pointer,
1487 };
1488 
1489 static struct snd_pcm_ops snd_intel8x0_ali_spdifout_ops = {
1490         .open =         snd_intel8x0_ali_spdifout_open,
1491         .close =        snd_intel8x0_ali_spdifout_close,
1492         .ioctl =        snd_pcm_lib_ioctl,
1493         .hw_params =    snd_intel8x0_hw_params,
1494         .hw_free =      snd_intel8x0_hw_free,
1495         .prepare =      snd_intel8x0_pcm_prepare,
1496         .trigger =      snd_intel8x0_pcm_trigger,
1497         .pointer =      snd_intel8x0_pcm_pointer,
1498 };
1499 #endif // NYI
1500 
1501 struct ich_pcm_table {
1502         char *suffix;
1503         struct snd_pcm_ops *playback_ops;
1504         struct snd_pcm_ops *capture_ops;
1505         size_t prealloc_size;
1506         size_t prealloc_max_size;
1507         int ac97_idx;
1508 };
1509 
1510 static int __devinit snd_intel8x0_pcm1(struct intel8x0 *chip, int device,
1511                                        struct ich_pcm_table *rec)
1512 {
1513         struct snd_pcm *pcm;
1514         int err;
1515         char name[32];
1516 
1517         if (rec->suffix)
1518                 sprintf(name, "Intel ICH - %s", rec->suffix);
1519         else
1520                 strcpy(name, "Intel ICH");
1521         err = snd_pcm_new(chip->card, name, device,
1522                           rec->playback_ops ? 1 : 0,
1523                           rec->capture_ops ? 1 : 0, &pcm);
1524         if (err < 0)
1525                 return err;
1526 
1527         if (rec->playback_ops)
1528                 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, rec->playback_ops);
1529         if (rec->capture_ops)
1530                 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, rec->capture_ops);
1531 
1532         pcm->private_data = chip;
1533         pcm->info_flags = 0;
1534         if (rec->suffix)
1535                 sprintf(pcm->name, "%s - %s", chip->card->shortname, rec->suffix);
1536         else
1537                 strcpy(pcm->name, chip->card->shortname);
1538         chip->pcm[device] = pcm;
1539 
1540         snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
1541                                               snd_dma_pci_data(chip->pci),
1542                                               rec->prealloc_size, rec->prealloc_max_size);
1543 
1544         return 0;
1545 }
1546 
1547 static struct ich_pcm_table intel_pcms[] __devinitdata = {
1548         {
1549                 .playback_ops = &snd_intel8x0_playback_ops,
1550                 .capture_ops = &snd_intel8x0_capture_ops,
1551                 .prealloc_size = 64 * 1024,
1552                 .prealloc_max_size = 128 * 1024,
1553         },
1554         {
1555                 .suffix = "MIC ADC",
1556                 .capture_ops = &snd_intel8x0_capture_mic_ops,
1557                 .prealloc_size = 0,
1558                 .prealloc_max_size = 128 * 1024,
1559                 .ac97_idx = ICHD_MIC,
1560         },
1561         {
1562                 .suffix = "MIC2 ADC",
1563                 .capture_ops = &snd_intel8x0_capture_mic2_ops,
1564                 .prealloc_size = 0,
1565                 .prealloc_max_size = 128 * 1024,
1566                 .ac97_idx = ICHD_MIC2,
1567         },
1568         {
1569                 .suffix = "ADC2",
1570                 .capture_ops = &snd_intel8x0_capture2_ops,
1571                 .prealloc_size = 0,
1572                 .prealloc_max_size = 128 * 1024,
1573                 .ac97_idx = ICHD_PCM2IN,
1574         },
1575         {
1576                 .suffix = "IEC958",
1577                 .playback_ops = &snd_intel8x0_spdif_ops,
1578                 .prealloc_size = 64 * 1024,
1579                 .prealloc_max_size = 128 * 1024,
1580                 .ac97_idx = ICHD_SPBAR,
1581         },
1582 };
1583 
1584 static struct ich_pcm_table nforce_pcms[] __devinitdata = {
1585         {
1586                 .playback_ops = &snd_intel8x0_playback_ops,
1587                 .capture_ops = &snd_intel8x0_capture_ops,
1588                 .prealloc_size = 64 * 1024,
1589                 .prealloc_max_size = 128 * 1024,
1590         },
1591         {
1592                 .suffix = "MIC ADC",
1593                 .capture_ops = &snd_intel8x0_capture_mic_ops,
1594                 .prealloc_size = 0,
1595                 .prealloc_max_size = 128 * 1024,
1596                 .ac97_idx = NVD_MIC,
1597         },
1598         {
1599                 .suffix = "IEC958",
1600                 .playback_ops = &snd_intel8x0_spdif_ops,
1601                 .prealloc_size = 64 * 1024,
1602                 .prealloc_max_size = 128 * 1024,
1603                 .ac97_idx = NVD_SPBAR,
1604         },
1605 };
1606 
1607 static struct ich_pcm_table ali_pcms[] __devinitdata = {
1608         {
1609                 .playback_ops = &snd_intel8x0_ali_playback_ops,
1610                 .capture_ops = &snd_intel8x0_ali_capture_ops,
1611                 .prealloc_size = 64 * 1024,
1612                 .prealloc_max_size = 128 * 1024,
1613         },
1614         {
1615                 .suffix = "MIC ADC",
1616                 .capture_ops = &snd_intel8x0_ali_capture_mic_ops,
1617                 .prealloc_size = 0,
1618                 .prealloc_max_size = 128 * 1024,
1619                 .ac97_idx = ALID_MIC,
1620         },
1621         {
1622                 .suffix = "IEC958",
1623                 .playback_ops = &snd_intel8x0_ali_ac97spdifout_ops,
1624                 /* .capture_ops = &snd_intel8x0_ali_spdifin_ops, */
1625                 .prealloc_size = 64 * 1024,
1626                 .prealloc_max_size = 128 * 1024,
1627                 .ac97_idx = ALID_AC97SPDIFOUT,
1628         },
1629 #if 0 // NYI
1630         {
1631                 .suffix = "HW IEC958",
1632                 .playback_ops = &snd_intel8x0_ali_spdifout_ops,
1633                 .prealloc_size = 64 * 1024,
1634                 .prealloc_max_size = 128 * 1024,
1635         },
1636 #endif
1637 };
1638 
1639 static int __devinit snd_intel8x0_pcm(struct intel8x0 *chip)
1640 {
1641         int i, tblsize, device, err;
1642         struct ich_pcm_table *tbl, *rec;
1643 
1644         switch (chip->device_type) {
1645         case DEVICE_INTEL_ICH4:
1646                 tbl = intel_pcms;
1647                 tblsize = ARRAY_SIZE(intel_pcms);
1648                 if (spdif_aclink)
1649                         tblsize--;
1650                 break;
1651         case DEVICE_NFORCE:
1652                 tbl = nforce_pcms;
1653                 tblsize = ARRAY_SIZE(nforce_pcms);
1654                 if (spdif_aclink)
1655                         tblsize--;
1656                 break;
1657         case DEVICE_ALI:
1658                 tbl = ali_pcms;
1659                 tblsize = ARRAY_SIZE(ali_pcms);
1660                 break;
1661         default:
1662                 tbl = intel_pcms;
1663                 tblsize = 2;
1664                 break;
1665         }
1666 
1667         device = 0;
1668         for (i = 0; i < tblsize; i++) {
1669                 rec = tbl + i;
1670                 if (i > 0 && rec->ac97_idx) {
1671                         /* activate PCM only when associated AC'97 codec */
1672                         if (! chip->ichd[rec->ac97_idx].pcm)
1673                                 continue;
1674                 }
1675                 err = snd_intel8x0_pcm1(chip, device, rec);
1676                 if (err < 0)
1677                         return err;
1678                 device++;
1679         }
1680 
1681         chip->pcm_devs = device;
1682         return 0;
1683 }
1684         
1685 
1686 /*
1687  *  Mixer part
1688  */
1689 
1690 static void snd_intel8x0_mixer_free_ac97_bus(struct snd_ac97_bus *bus)
1691 {
1692         struct intel8x0 *chip = bus->private_data;
1693         chip->ac97_bus = NULL;
1694 }
1695 
1696 static void snd_intel8x0_mixer_free_ac97(struct snd_ac97 *ac97)
1697 {
1698         struct intel8x0 *chip = ac97->private_data;
1699         chip->ac97[ac97->num] = NULL;
1700 }
1701 
1702 static struct ac97_pcm ac97_pcm_defs[] __devinitdata = {
1703         /* front PCM */
1704         {
1705                 .exclusive = 1,
1706                 .r = {  {
1707                                 .slots = (1 << AC97_SLOT_PCM_LEFT) |
1708                                          (1 << AC97_SLOT_PCM_RIGHT) |
1709                                          (1 << AC97_SLOT_PCM_CENTER) |
1710                                          (1 << AC97_SLOT_PCM_SLEFT) |
1711                                          (1 << AC97_SLOT_PCM_SRIGHT) |
1712                                          (1 << AC97_SLOT_LFE)
1713                         },
1714                         {
1715                                 .slots = (1 << AC97_SLOT_PCM_LEFT) |
1716                                          (1 << AC97_SLOT_PCM_RIGHT) |
1717                                          (1 << AC97_SLOT_PCM_LEFT_0) |
1718                                          (1 << AC97_SLOT_PCM_RIGHT_0)
1719                         }
1720                 }
1721         },
1722         /* PCM IN #1 */
1723         {
1724                 .stream = 1,
1725                 .exclusive = 1,
1726                 .r = {  {
1727                                 .slots = (1 << AC97_SLOT_PCM_LEFT) |
1728                                          (1 << AC97_SLOT_PCM_RIGHT)
1729                         }
1730                 }
1731         },
1732         /* MIC IN #1 */
1733         {
1734                 .stream = 1,
1735                 .exclusive = 1,
1736                 .r = {  {
1737                                 .slots = (1 << AC97_SLOT_MIC)
1738                         }
1739                 }
1740         },
1741         /* S/PDIF PCM */
1742         {
1743                 .exclusive = 1,
1744                 .spdif = 1,
1745                 .r = {  {
1746                                 .slots = (1 << AC97_SLOT_SPDIF_LEFT2) |
1747                                          (1 << AC97_SLOT_SPDIF_RIGHT2)
1748                         }
1749                 }
1750         },
1751         /* PCM IN #2 */
1752         {
1753                 .stream = 1,
1754                 .exclusive = 1,
1755                 .r = {  {
1756                                 .slots = (1 << AC97_SLOT_PCM_LEFT) |
1757                                          (1 << AC97_SLOT_PCM_RIGHT)
1758                         }
1759                 }
1760         },
1761         /* MIC IN #2 */
1762         {
1763                 .stream = 1,
1764                 .exclusive = 1,
1765                 .r = {  {
1766                                 .slots = (1 << AC97_SLOT_MIC)
1767                         }
1768                 }
1769         },
1770 };
1771 
1772 static struct ac97_quirk ac97_quirks[] __devinitdata = {
1773         {
1774                 .subvendor = 0x0e11,
1775                 .subdevice = 0x000e,
1776                 .name = "Compaq Deskpro EN",    /* AD1885 */
1777                 .type = AC97_TUNE_HP_ONLY
1778         },
1779         {
1780                 .subvendor = 0x0e11,
1781                 .subdevice = 0x008a,
1782                 .name = "Compaq Evo W4000",     /* AD1885 */
1783                 .type = AC97_TUNE_HP_ONLY
1784         },
1785         {
1786                 .subvendor = 0x0e11,
1787                 .subdevice = 0x00b8,
1788                 .name = "Compaq Evo D510C",
1789                 .type = AC97_TUNE_HP_ONLY
1790         },
1791         {
1792                 .subvendor = 0x0e11,
1793                 .subdevice = 0x0860,
1794                 .name = "HP/Compaq nx7010",
1795                 .type = AC97_TUNE_MUTE_LED
1796         },
1797         {
1798                 .subvendor = 0x1014,
1799                 .subdevice = 0x0534,
1800                 .name = "ThinkPad X31",
1801                 .type = AC97_TUNE_INV_EAPD
1802         },
1803         {
1804                 .subvendor = 0x1014,
1805                 .subdevice = 0x1f00,
1806                 .name = "MS-9128",
1807                 .type = AC97_TUNE_ALC_JACK
1808         },
1809         {
1810                 .subvendor = 0x1014,
1811                 .subdevice = 0x0267,
1812                 .name = "IBM NetVista A30p",    /* AD1981B */
1813                 .type = AC97_TUNE_HP_ONLY
1814         },
1815         {
1816                 .subvendor = 0x1025,
1817                 .subdevice = 0x0082,
1818                 .name = "Acer Travelmate 2310",
1819                 .type = AC97_TUNE_HP_ONLY
1820         },
1821         {
1822                 .subvendor = 0x1025,
1823                 .subdevice = 0x0083,
1824                 .name = "Acer Aspire 3003LCi",
1825                 .type = AC97_TUNE_HP_ONLY
1826         },
1827         {
1828                 .subvendor = 0x1028,
1829                 .subdevice = 0x00d8,
1830                 .name = "Dell Precision 530",   /* AD1885 */
1831                 .type = AC97_TUNE_HP_ONLY
1832         },
1833         {
1834                 .subvendor = 0x1028,
1835                 .subdevice = 0x010d,
1836                 .name = "Dell", /* which model?  AD1885 */
1837                 .type = AC97_TUNE_HP_ONLY
1838         },
1839         {
1840                 .subvendor = 0x1028,
1841                 .subdevice = 0x0126,
1842                 .name = "Dell Optiplex GX260",  /* AD1981A */
1843                 .type = AC97_TUNE_HP_ONLY
1844         },
1845         {
1846                 .subvendor = 0x1028,
1847                 .subdevice = 0x012c,
1848                 .name = "Dell Precision 650",   /* AD1981A */
1849                 .type = AC97_TUNE_HP_ONLY
1850         },
1851         {
1852                 .subvendor = 0x1028,
1853                 .subdevice = 0x012d,
1854                 .name = "Dell Precision 450",   /* AD1981B*/
1855                 .type = AC97_TUNE_HP_ONLY
1856         },
1857         {
1858                 .subvendor = 0x1028,
1859                 .subdevice = 0x0147,
1860                 .name = "Dell", /* which model?  AD1981B*/
1861                 .type = AC97_TUNE_HP_ONLY
1862         },
1863         {
1864                 .subvendor = 0x1028,
1865                 .subdevice = 0x0151,
1866                 .name = "Dell Optiplex GX270",  /* AD1981B */
1867                 .type = AC97_TUNE_HP_ONLY
1868         },
1869         {
1870                 .subvendor = 0x1028,
1871                 .subdevice = 0x014e,
1872                 .name = "Dell D800", /* STAC9750/51 */
1873                 .type = AC97_TUNE_HP_ONLY
1874         },
1875         {
1876                 .subvendor = 0x1028,
1877                 .subdevice = 0x0163,
1878                 .name = "Dell Unknown", /* STAC9750/51 */
1879                 .type = AC97_TUNE_HP_ONLY
1880         },
1881         {
1882                 .subvendor = 0x1028,
1883                 .subdevice = 0x016a,
1884                 .name = "Dell Inspiron 8600",   /* STAC9750/51 */
1885                 .type = AC97_TUNE_HP_ONLY
1886         },
1887         {
1888                 .subvendor = 0x1028,
1889                 .subdevice = 0x0182,
1890                 .name = "Dell Latitude D610",   /* STAC9750/51 */
1891                 .type = AC97_TUNE_HP_ONLY
1892         },
1893         {
1894                 .subvendor = 0x1028,
1895                 .subdevice = 0x0186,
1896                 .name = "Dell Latitude D810", /* cf. Malone #41015 */
1897                 .type = AC97_TUNE_HP_MUTE_LED
1898         },
1899         {
1900                 .subvendor = 0x1028,
1901                 .subdevice = 0x0188,
1902                 .name = "Dell Inspiron 6000",
1903                 .type = AC97_TUNE_HP_MUTE_LED /* cf. Malone #41015 */
1904         },
1905         {
1906                 .subvendor = 0x1028,
1907                 .subdevice = 0x0189,
1908                 .name = "Dell Inspiron 9300",
1909                 .type = AC97_TUNE_HP_MUTE_LED
1910         },
1911         {
1912                 .subvendor = 0x1028,
1913                 .subdevice = 0x0191,
1914                 .name = "Dell Inspiron 8600",
1915                 .type = AC97_TUNE_HP_ONLY
1916         },
1917         {
1918                 .subvendor = 0x103c,
1919                 .subdevice = 0x006d,
1920                 .name = "HP zv5000",
1921                 .type = AC97_TUNE_MUTE_LED      /*AD1981B*/
1922         },
1923         {       /* FIXME: which codec? */
1924                 .subvendor = 0x103c,
1925                 .subdevice = 0x00c3,
1926                 .name = "HP xw6000",
1927                 .type = AC97_TUNE_HP_ONLY
1928         },
1929         {
1930                 .subvendor = 0x103c,
1931                 .subdevice = 0x088c,
1932                 .name = "HP nc8000",
1933                 .type = AC97_TUNE_HP_MUTE_LED
1934         },
1935         {
1936                 .subvendor = 0x103c,
1937                 .subdevice = 0x0890,
1938                 .name = "HP nc6000",
1939                 .type = AC97_TUNE_MUTE_LED
1940         },
1941         {
1942                 .subvendor = 0x103c,
1943                 .subdevice = 0x129d,
1944                 .name = "HP xw8000",
1945                 .type = AC97_TUNE_HP_ONLY
1946         },
1947         {
1948                 .subvendor = 0x103c,
1949                 .subdevice = 0x0938,
1950                 .name = "HP nc4200",
1951                 .type = AC97_TUNE_HP_MUTE_LED
1952         },
1953         {
1954                 .subvendor = 0x103c,
1955                 .subdevice = 0x099c,
1956                 .name = "HP nx6110/nc6120",
1957                 .type = AC97_TUNE_HP_MUTE_LED
1958         },
1959         {
1960                 .subvendor = 0x103c,
1961                 .subdevice = 0x0944,
1962                 .name = "HP nc6220",
1963                 .type = AC97_TUNE_HP_MUTE_LED
1964         },
1965         {
1966                 .subvendor = 0x103c,
1967                 .subdevice = 0x0934,
1968                 .name = "HP nc8220",
1969                 .type = AC97_TUNE_HP_MUTE_LED
1970         },
1971         {
1972                 .subvendor = 0x103c,
1973                 .subdevice = 0x12f1,
1974                 .name = "HP xw8200",    /* AD1981B*/
1975                 .type = AC97_TUNE_HP_ONLY
1976         },
1977         {
1978                 .subvendor = 0x103c,
1979                 .subdevice = 0x12f2,
1980                 .name = "HP xw6200",
1981                 .type = AC97_TUNE_HP_ONLY
1982         },
1983         {
1984                 .subvendor = 0x103c,
1985                 .subdevice = 0x3008,
1986                 .name = "HP xw4200",    /* AD1981B*/
1987                 .type = AC97_TUNE_HP_ONLY
1988         },
1989         {
1990                 .subvendor = 0x104d,
1991                 .subdevice = 0x8144,
1992                 .name = "Sony",
1993                 .type = AC97_TUNE_INV_EAPD
1994         },
1995         {
1996                 .subvendor = 0x104d,
1997                 .subdevice = 0x8197,
1998                 .name = "Sony S1XP",
1999                 .type = AC97_TUNE_INV_EAPD
2000         },
2001         {
2002                 .subvendor = 0x104d,
2003                 .subdevice = 0x81c0,
2004                 .name = "Sony VAIO VGN-T350P", /*AD1981B*/
2005                 .type = AC97_TUNE_INV_EAPD
2006         },
2007         {
2008                 .subvendor = 0x104d,
2009                 .subdevice = 0x81c5,
2010                 .name = "Sony VAIO VGN-B1VP", /*AD1981B*/
2011                 .type = AC97_TUNE_INV_EAPD
2012         },
2013         {
2014                 .subvendor = 0x1043,
2015                 .subdevice = 0x80f3,
2016                 .name = "ASUS ICH5/AD1985",
2017                 .type = AC97_TUNE_AD_SHARING
2018         },
2019         {
2020                 .subvendor = 0x10cf,
2021                 .subdevice = 0x11c3,
2022                 .name = "Fujitsu-Siemens E4010",
2023                 .type = AC97_TUNE_HP_ONLY
2024         },
2025         {
2026                 .subvendor = 0x10cf,
2027                 .subdevice = 0x1225,
2028                 .name = "Fujitsu-Siemens T3010",
2029                 .type = AC97_TUNE_HP_ONLY
2030         },
2031         {
2032                 .subvendor = 0x10cf,
2033                 .subdevice = 0x1253,
2034                 .name = "Fujitsu S6210",        /* STAC9750/51 */
2035                 .type = AC97_TUNE_HP_ONLY
2036         },
2037         {
2038                 .subvendor = 0x10cf,
2039                 .subdevice = 0x127d,
2040                 .name = "Fujitsu Lifebook P7010",
2041                 .type = AC97_TUNE_HP_ONLY
2042         },
2043         {
2044                 .subvendor = 0x10cf,
2045                 .subdevice = 0x127e,
2046                 .name = "Fujitsu Lifebook C1211D",
2047                 .type = AC97_TUNE_HP_ONLY
2048         },
2049         {
2050                 .subvendor = 0x10cf,
2051                 .subdevice = 0x12ec,
2052                 .name = "Fujitsu-Siemens 4010",
2053                 .type = AC97_TUNE_HP_ONLY
2054         },
2055         {
2056                 .subvendor = 0x10cf,
2057                 .subdevice = 0x12f2,
2058                 .name = "Fujitsu-Siemens Celsius H320",
2059                 .type = AC97_TUNE_SWAP_HP
2060         },
2061         {
2062                 .subvendor = 0x10f1,
2063                 .subdevice = 0x2665,
2064                 .name = "Fujitsu-Siemens Celsius",      /* AD1981? */
2065                 .type = AC97_TUNE_HP_ONLY
2066         },
2067         {
2068                 .subvendor = 0x10f1,
2069                 .subdevice = 0x2885,
2070                 .name = "AMD64 Mobo",   /* ALC650 */
2071                 .type = AC97_TUNE_HP_ONLY
2072         },
2073         {
2074                 .subvendor = 0x10f1,
2075                 .subdevice = 0x2895,
2076                 .name = "Tyan Thunder K8WE",
2077                 .type = AC97_TUNE_HP_ONLY
2078         },
2079         {
2080                 .subvendor = 0x10f7,
2081                 .subdevice = 0x834c,
2082                 .name = "Panasonic CF-R4",
2083                 .type = AC97_TUNE_HP_ONLY,
2084         },
2085         {
2086                 .subvendor = 0x110a,
2087                 .subdevice = 0x0056,
2088                 .name = "Fujitsu-Siemens Scenic",       /* AD1981? */
2089                 .type = AC97_TUNE_HP_ONLY
2090         },
2091         {
2092                 .subvendor = 0x11d4,
2093                 .subdevice = 0x5375,
2094                 .name = "ADI AD1985 (discrete)",
2095                 .type = AC97_TUNE_HP_ONLY
2096         },
2097         {
2098                 .subvendor = 0x1462,
2099                 .subdevice = 0x5470,
2100                 .name = "MSI P4 ATX 645 Ultra",
2101                 .type = AC97_TUNE_HP_ONLY
2102         },
2103         {
2104                 .subvendor = 0x161f,
2105                 .subdevice = 0x202f,
2106                 .name = "Gateway M520",
2107                 .type = AC97_TUNE_INV_EAPD
2108         },
2109         {
2110                 .subvendor = 0x161f,
2111                 .subdevice = 0x203a,
2112                 .name = "Gateway 4525GZ",               /* AD1981B */
2113                 .type = AC97_TUNE_INV_EAPD
2114         },
2115         {
2116                 .subvendor = 0x1734,
2117                 .subdevice = 0x0088,
2118                 .name = "Fujitsu-Siemens D1522",        /* AD1981 */
2119                 .type = AC97_TUNE_HP_ONLY
2120         },
2121         {
2122                 .subvendor = 0x8086,
2123                 .subdevice = 0x2000,
2124                 .mask = 0xfff0,
2125                 .name = "Intel ICH5/AD1985",
2126                 .type = AC97_TUNE_AD_SHARING
2127         },
2128         {
2129                 .subvendor = 0x8086,
2130                 .subdevice = 0x4000,
2131                 .mask = 0xfff0,
2132                 .name = "Intel ICH5/AD1985",
2133                 .type = AC97_TUNE_AD_SHARING
2134         },
2135         {
2136                 .subvendor = 0x8086,
2137                 .subdevice = 0x4856,
2138                 .name = "Intel D845WN (82801BA)",
2139                 .type = AC97_TUNE_SWAP_HP
2140         },
2141         {
2142                 .subvendor = 0x8086,
2143                 .subdevice = 0x4d44,
2144                 .name = "Intel D850EMV2",       /* AD1885 */
2145                 .type = AC97_TUNE_HP_ONLY
2146         },
2147         {
2148                 .subvendor = 0x8086,
2149                 .subdevice = 0x4d56,
2150                 .name = "Intel ICH/AD1885",
2151                 .type = AC97_TUNE_HP_ONLY
2152         },
2153         {
2154                 .subvendor = 0x8086,
2155                 .subdevice = 0x6000,
2156                 .mask = 0xfff0,
2157                 .name = "Intel ICH5/AD1985",
2158                 .type = AC97_TUNE_AD_SHARING
2159         },
2160         {
2161                 .subvendor = 0x8086,
2162                 .subdevice = 0xe000,
2163                 .mask = 0xfff0,
2164                 .name = "Intel ICH5/AD1985",
2165                 .type = AC97_TUNE_AD_SHARING
2166         },
2167 #if 0 /* FIXME: this seems wrong on most boards */
2168         {
2169                 .subvendor = 0x8086,
2170                 .subdevice = 0xa000,
2171                 .mask = 0xfff0,
2172                 .name = "Intel ICH5/AD1985",
2173                 .type = AC97_TUNE_HP_ONLY
2174         },
2175 #endif
2176         { } /* terminator */
2177 };
2178 
2179 static int __devinit snd_intel8x0_mixer(struct intel8x0 *chip, int ac97_clock,
2180                                         const char *quirk_override)
2181 {
2182         struct snd_ac97_bus *pbus;
2183         struct snd_ac97_template ac97;
2184         int err;
2185         unsigned int i, codecs;
2186         unsigned int glob_sta = 0;
2187         struct snd_ac97_bus_ops *ops;
2188         static struct snd_ac97_bus_ops standard_bus_ops = {
2189                 .write = snd_intel8x0_codec_write,
2190                 .read = snd_intel8x0_codec_read,
2191         };
2192         static struct snd_ac97_bus_ops ali_bus_ops = {
2193                 .write = snd_intel8x0_ali_codec_write,
2194                 .read = snd_intel8x0_ali_codec_read,
2195         };
2196 
2197         chip->spdif_idx = -1; /* use PCMOUT (or disabled) */
2198         if (!spdif_aclink) {
2199                 switch (chip->device_type) {
2200                 case DEVICE_NFORCE:
2201                         chip->spdif_idx = NVD_SPBAR;
2202                         break;
2203                 case DEVICE_ALI:
2204                         chip->spdif_idx = ALID_AC97SPDIFOUT;
2205                         break;
2206                 case DEVICE_INTEL_ICH4:
2207                         chip->spdif_idx = ICHD_SPBAR;
2208                         break;
2209                 };
2210         }
2211 
2212         chip->in_ac97_init = 1;
2213         
2214         memset(&ac97, 0, sizeof(ac97));
2215         ac97.private_data = chip;
2216         ac97.private_free = snd_intel8x0_mixer_free_ac97;
2217         ac97.scaps = AC97_SCAP_SKIP_MODEM | AC97_SCAP_POWER_SAVE;
2218         if (chip->xbox)
2219                 ac97.scaps |= AC97_SCAP_DETECT_BY_VENDOR;
2220         if (chip->device_type != DEVICE_ALI) {
2221                 glob_sta = igetdword(chip, ICHREG(GLOB_STA));
2222                 ops = &standard_bus_ops;
2223                 chip->in_sdin_init = 1;
2224                 codecs = 0;
2225                 for (i = 0; i < chip->max_codecs; i++) {
2226                         if (! (glob_sta & chip->codec_bit[i]))
2227                                 continue;
2228                         if (chip->device_type == DEVICE_INTEL_ICH4) {
2229                                 snd_intel8x0_codec_read_test(chip, codecs);
2230                                 chip->ac97_sdin[codecs] =
2231                                         igetbyte(chip, ICHREG(SDM)) & ICH_LDI_MASK;
2232                                 if (snd_BUG_ON(chip->ac97_sdin[codecs] >= 3))
2233                                         chip->ac97_sdin[codecs] = 0;
2234                         } else
2235                                 chip->ac97_sdin[codecs] = i;
2236                         codecs++;
2237                 }
2238                 chip->in_sdin_init = 0;
2239                 if (! codecs)
2240                         codecs = 1;
2241         } else {
2242                 ops = &ali_bus_ops;
2243                 codecs = 1;
2244                 /* detect the secondary codec */
2245                 for (i = 0; i < 100; i++) {
2246                         unsigned int reg = igetdword(chip, ICHREG(ALI_RTSR));
2247                         if (reg & 0x40) {
2248                                 codecs = 2;
2249                                 break;
2250                         }
2251                         iputdword(chip, ICHREG(ALI_RTSR), reg | 0x40);
2252                         udelay(1);
2253                 }
2254         }
2255         if ((err = snd_ac97_bus(chip->card, 0, ops, chip, &pbus)) < 0)
2256                 goto __err;
2257         pbus->private_free = snd_intel8x0_mixer_free_ac97_bus;
2258         if (ac97_clock >= 8000 && ac97_clock <= 48000)
2259                 pbus->clock = ac97_clock;
2260         /* FIXME: my test board doesn't work well with VRA... */
2261         if (chip->device_type == DEVICE_ALI)
2262                 pbus->no_vra = 1;
2263         else
2264                 pbus->dra = 1;
2265         chip->ac97_bus = pbus;
2266         chip->ncodecs = codecs;
2267 
2268         ac97.pci = chip->pci;
2269         for (i = 0; i < codecs; i++) {
2270                 ac97.num = i;
2271                 if ((err = snd_ac97_mixer(pbus, &ac97, &chip->ac97[i])) < 0) {
2272                         if (err != -EACCES)
2273                                 snd_printk(KERN_ERR "Unable to initialize codec #%d\n", i);
2274                         if (i == 0)
2275                                 goto __err;
2276                 }
2277         }
2278         /* tune up the primary codec */
2279         snd_ac97_tune_hardware(chip->ac97[0], ac97_quirks, quirk_override);
2280         /* enable separate SDINs for ICH4 */
2281         if (chip->device_type == DEVICE_INTEL_ICH4)
2282                 pbus->isdin = 1;
2283         /* find the available PCM streams */
2284         i = ARRAY_SIZE(ac97_pcm_defs);
2285         if (chip->device_type != DEVICE_INTEL_ICH4)
2286                 i -= 2;         /* do not allocate PCM2IN and MIC2 */
2287         if (chip->spdif_idx < 0)
2288                 i--;            /* do not allocate S/PDIF */
2289         err = snd_ac97_pcm_assign(pbus, i, ac97_pcm_defs);
2290         if (err < 0)
2291                 goto __err;
2292         chip->ichd[ICHD_PCMOUT].pcm = &pbus->pcms[0];
2293         chip->ichd[ICHD_PCMIN].pcm = &pbus->pcms[1];
2294         chip->ichd[ICHD_MIC].pcm = &pbus->pcms[2];
2295         if (chip->spdif_idx >= 0)
2296                 chip->ichd[chip->spdif_idx].pcm = &pbus->pcms[3];
2297         if (chip->device_type == DEVICE_INTEL_ICH4) {
2298                 chip->ichd[ICHD_PCM2IN].pcm = &pbus->pcms[4];
2299                 chip->ichd[ICHD_MIC2].pcm = &pbus->pcms[5];
2300         }
2301         /* enable separate SDINs for ICH4 */
2302         if (chip->device_type == DEVICE_INTEL_ICH4) {
2303                 struct ac97_pcm *pcm = chip->ichd[ICHD_PCM2IN].pcm;
2304                 u8 tmp = igetbyte(chip, ICHREG(SDM));
2305                 tmp &= ~(ICH_DI2L_MASK|ICH_DI1L_MASK);
2306                 if (pcm) {
2307                         tmp |= ICH_SE;  /* steer enable for multiple SDINs */
2308                         tmp |= chip->ac97_sdin[0] << ICH_DI1L_SHIFT;
2309                         for (i = 1; i < 4; i++) {
2310                                 if (pcm->r[0].codec[i]) {
2311                                         tmp |= chip->ac97_sdin[pcm->r[0].codec[1]->num] << ICH_DI2L_SHIFT;
2312                                         break;
2313                                 }
2314                         }
2315                 } else {
2316                         tmp &= ~ICH_SE; /* steer disable */
2317                 }
2318                 iputbyte(chip, ICHREG(SDM), tmp);
2319         }
2320         if (pbus->pcms[0].r[0].slots & (1 << AC97_SLOT_PCM_SLEFT)) {
2321                 chip->multi4 = 1;
2322                 if (pbus->pcms[0].r[0].slots & (1 << AC97_SLOT_LFE)) {
2323                         chip->multi6 = 1;
2324                         if (chip->ac97[0]->flags & AC97_HAS_8CH)
2325                                 chip->multi8 = 1;
2326                 }
2327         }
2328         if (pbus->pcms[0].r[1].rslots[0]) {
2329                 chip->dra = 1;
2330         }
2331         if (chip->device_type == DEVICE_INTEL_ICH4) {
2332                 if ((igetdword(chip, ICHREG(GLOB_STA)) & ICH_SAMPLE_CAP) == ICH_SAMPLE_16_20)
2333                         chip->smp20bit = 1;
2334         }
2335         if (chip->device_type == DEVICE_NFORCE && !spdif_aclink) {
2336                 /* 48kHz only */
2337                 chip->ichd[chip->spdif_idx].pcm->rates = SNDRV_PCM_RATE_48000;
2338         }
2339         if (chip->device_type == DEVICE_INTEL_ICH4 && !spdif_aclink) {
2340                 /* use slot 10/11 for SPDIF */
2341                 u32 val;
2342                 val = igetdword(chip, ICHREG(GLOB_CNT)) & ~ICH_PCM_SPDIF_MASK;
2343                 val |= ICH_PCM_SPDIF_1011;
2344                 iputdword(chip, ICHREG(GLOB_CNT), val);
2345                 snd_ac97_update_bits(chip->ac97[0], AC97_EXTENDED_STATUS, 0x03 << 4, 0x03 << 4);
2346         }
2347         chip->in_ac97_init = 0;
2348         return 0;
2349 
2350  __err:
2351         /* clear the cold-reset bit for the next chance */
2352         if (chip->device_type != DEVICE_ALI)
2353                 iputdword(chip, ICHREG(GLOB_CNT),
2354                           igetdword(chip, ICHREG(GLOB_CNT)) & ~ICH_AC97COLD);
2355         return err;
2356 }
2357 
2358 
2359 /*
2360  *
2361  */
2362 
2363 static void do_ali_reset(struct intel8x0 *chip)
2364 {
2365         iputdword(chip, ICHREG(ALI_SCR), ICH_ALI_SC_RESET);
2366         iputdword(chip, ICHREG(ALI_FIFOCR1), 0x83838383);
2367         iputdword(chip, ICHREG(ALI_FIFOCR2), 0x83838383);
2368         iputdword(chip, ICHREG(ALI_FIFOCR3), 0x83838383);
2369         iputdword(chip, ICHREG(ALI_INTERFACECR),
2370                   ICH_ALI_IF_PI|ICH_ALI_IF_PO);
2371         iputdword(chip, ICHREG(ALI_INTERRUPTCR), 0x00000000);
2372         iputdword(chip, ICHREG(ALI_INTERRUPTSR), 0x00000000);
2373 }
2374 
2375 #ifdef CONFIG_SND_AC97_POWER_SAVE
2376 static struct snd_pci_quirk ich_chip_reset_mode[] = {
2377         SND_PCI_QUIRK(0x1014, 0x051f, "Thinkpad R32", 1),
2378         { } /* end */
2379 };
2380 
2381 static int snd_intel8x0_ich_chip_cold_reset(struct intel8x0 *chip)
2382 {
2383         unsigned int cnt;
2384         /* ACLink on, 2 channels */
2385 
2386         if (snd_pci_quirk_lookup(chip->pci, ich_chip_reset_mode))
2387                 return -EIO;
2388 
2389         cnt = igetdword(chip, ICHREG(GLOB_CNT));
2390         cnt &= ~(ICH_ACLINK | ICH_PCM_246_MASK);
2391 
2392         /* do cold reset - the full ac97 powerdown may leave the controller
2393          * in a warm state but actually it cannot communicate with the codec.
2394          */
2395         iputdword(chip, ICHREG(GLOB_CNT), cnt & ~ICH_AC97COLD);
2396         cnt = igetdword(chip, ICHREG(GLOB_CNT));
2397         udelay(10);
2398         iputdword(chip, ICHREG(GLOB_CNT), cnt | ICH_AC97COLD);
2399         msleep(1);
2400         return 0;
2401 }
2402 #define snd_intel8x0_ich_chip_can_cold_reset(chip) \
2403         (!snd_pci_quirk_lookup(chip->pci, ich_chip_reset_mode))
2404 #else
2405 #define snd_intel8x0_ich_chip_cold_reset(chip)  0
2406 #define snd_intel8x0_ich_chip_can_cold_reset(chip) (0)
2407 #endif
2408 
2409 static int snd_intel8x0_ich_chip_reset(struct intel8x0 *chip)
2410 {
2411         unsigned long end_time;
2412         unsigned int cnt;
2413         /* ACLink on, 2 channels */
2414         cnt = igetdword(chip, ICHREG(GLOB_CNT));
2415         cnt &= ~(ICH_ACLINK | ICH_PCM_246_MASK);
2416         /* finish cold or do warm reset */
2417         cnt |= (cnt & ICH_AC97COLD) == 0 ? ICH_AC97COLD : ICH_AC97WARM;
2418         iputdword(chip, ICHREG(GLOB_CNT), cnt);
2419         end_time = (jiffies + (HZ / 4)) + 1;
2420         do {
2421                 if ((igetdword(chip, ICHREG(GLOB_CNT)) & ICH_AC97WARM) == 0)
2422                         return 0;
2423                 schedule_timeout_uninterruptible(1);
2424         } while (time_after_eq(end_time, jiffies));
2425         snd_printk(KERN_ERR "AC'97 warm reset still in progress? [0x%x]\n",
2426                    igetdword(chip, ICHREG(GLOB_CNT)));
2427         return -EIO;
2428 }
2429 
2430 static int snd_intel8x0_ich_chip_init(struct intel8x0 *chip, int probing)
2431 {
2432         unsigned long end_time;
2433         unsigned int status, nstatus;
2434         unsigned int cnt;
2435         int err;
2436 
2437         /* put logic to right state */
2438         /* first clear status bits */
2439         status = ICH_RCS | ICH_MCINT | ICH_POINT | ICH_PIINT;
2440         if (chip->device_type == DEVICE_NFORCE)
2441                 status |= ICH_NVSPINT;
2442         cnt = igetdword(chip, ICHREG(GLOB_STA));
2443         iputdword(chip, ICHREG(GLOB_STA), cnt & status);
2444 
2445         if (snd_intel8x0_ich_chip_can_cold_reset(chip))
2446                 err = snd_intel8x0_ich_chip_cold_reset(chip);
2447         else
2448                 err = snd_intel8x0_ich_chip_reset(chip);
2449         if (err < 0)
2450                 return err;
2451 
2452         if (probing) {
2453                 /* wait for any codec ready status.
2454                  * Once it becomes ready it should remain ready
2455                  * as long as we do not disable the ac97 link.
2456                  */
2457                 end_time = jiffies + HZ;
2458                 do {
2459                         status = igetdword(chip, ICHREG(GLOB_STA)) &
2460                                 chip->codec_isr_bits;
2461                         if (status)
2462                                 break;
2463                         schedule_timeout_uninterruptible(1);
2464                 } while (time_after_eq(end_time, jiffies));
2465                 if (! status) {
2466                         /* no codec is found */
2467                         snd_printk(KERN_ERR "codec_ready: codec is not ready [0x%x]\n",
2468                                    igetdword(chip, ICHREG(GLOB_STA)));
2469                         return -EIO;
2470                 }
2471 
2472                 /* wait for other codecs ready status. */
2473                 end_time = jiffies + HZ / 4;
2474                 while (status != chip->codec_isr_bits &&
2475                        time_after_eq(end_time, jiffies)) {
2476                         schedule_timeout_uninterruptible(1);
2477                         status |= igetdword(chip, ICHREG(GLOB_STA)) &
2478                                 chip->codec_isr_bits;
2479                 }
2480 
2481         } else {
2482                 /* resume phase */
2483                 int i;
2484                 status = 0;
2485                 for (i = 0; i < chip->ncodecs; i++)
2486                         if (chip->ac97[i])
2487                                 status |= chip->codec_bit[chip->ac97_sdin[i]];
2488                 /* wait until all the probed codecs are ready */
2489                 end_time = jiffies + HZ;
2490                 do {
2491                         nstatus = igetdword(chip, ICHREG(GLOB_STA)) &
2492                                 chip->codec_isr_bits;
2493                         if (status == nstatus)
2494                                 break;
2495                         schedule_timeout_uninterruptible(1);
2496                 } while (time_after_eq(end_time, jiffies));
2497         }
2498 
2499         if (chip->device_type == DEVICE_SIS) {
2500                 /* unmute the output on SIS7012 */
2501                 iputword(chip, 0x4c, igetword(chip, 0x4c) | 1);
2502         }
2503         if (chip->device_type == DEVICE_NFORCE && !spdif_aclink) {
2504                 /* enable SPDIF interrupt */
2505                 unsigned int val;
2506                 pci_read_config_dword(chip->pci, 0x4c, &val);
2507                 val |= 0x1000000;
2508                 pci_write_config_dword(chip->pci, 0x4c, val);
2509         }
2510         return 0;
2511 }
2512 
2513 static int snd_intel8x0_ali_chip_init(struct intel8x0 *chip, int probing)
2514 {
2515         u32 reg;
2516         int i = 0;
2517 
2518         reg = igetdword(chip, ICHREG(ALI_SCR));
2519         if ((reg & 2) == 0)     /* Cold required */
2520                 reg |= 2;
2521         else
2522                 reg |= 1;       /* Warm */
2523         reg &= ~0x80000000;     /* ACLink on */
2524         iputdword(chip, ICHREG(ALI_SCR), reg);
2525 
2526         for (i = 0; i < HZ / 2; i++) {
2527                 if (! (igetdword(chip, ICHREG(ALI_INTERRUPTSR)) & ALI_INT_GPIO))
2528                         goto __ok;
2529                 schedule_timeout_uninterruptible(1);
2530         }
2531         snd_printk(KERN_ERR "AC'97 reset failed.\n");
2532         if (probing)
2533                 return -EIO;
2534 
2535  __ok:
2536         for (i = 0; i < HZ / 2; i++) {
2537                 reg = igetdword(chip, ICHREG(ALI_RTSR));
2538                 if (reg & 0x80) /* primary codec */
2539                         break;
2540                 iputdword(chip, ICHREG(ALI_RTSR), reg | 0x80);
2541                 schedule_timeout_uninterruptible(1);
2542         }
2543 
2544         do_ali_reset(chip);
2545         return 0;
2546 }
2547 
2548 static int snd_intel8x0_chip_init(struct intel8x0 *chip, int probing)
2549 {
2550         unsigned int i, timeout;
2551         int err;
2552         
2553         if (chip->device_type != DEVICE_ALI) {
2554                 if ((err = snd_intel8x0_ich_chip_init(chip, probing)) < 0)
2555                         return err;
2556                 iagetword(chip, 0);     /* clear semaphore flag */
2557         } else {
2558                 if ((err = snd_intel8x0_ali_chip_init(chip, probing)) < 0)
2559                         return err;
2560         }
2561 
2562         /* disable interrupts */
2563         for (i = 0; i < chip->bdbars_count; i++)
2564                 iputbyte(chip, ICH_REG_OFF_CR + chip->ichd[i].reg_offset, 0x00);
2565         /* reset channels */
2566         for (i = 0; i < chip->bdbars_count; i++)
2567                 iputbyte(chip, ICH_REG_OFF_CR + chip->ichd[i].reg_offset, ICH_RESETREGS);
2568         for (i = 0; i < chip->bdbars_count; i++) {
2569                 timeout = 100000;
2570                 while (--timeout != 0) {
2571                         if ((igetbyte(chip, ICH_REG_OFF_CR + chip->ichd[i].reg_offset) & ICH_RESETREGS) == 0)
2572                                 break;
2573                 }
2574                 if (timeout == 0)
2575                         printk(KERN_ERR "intel8x0: reset of registers failed?\n");
2576         }
2577         /* initialize Buffer Descriptor Lists */
2578         for (i = 0; i < chip->bdbars_count; i++)
2579                 iputdword(chip, ICH_REG_OFF_BDBAR + chip->ichd[i].reg_offset,
2580                           chip->ichd[i].bdbar_addr);
2581         return 0;
2582 }
2583 
2584 static int snd_intel8x0_free(struct intel8x0 *chip)
2585 {
2586         unsigned int i;
2587 
2588         if (chip->irq < 0)
2589                 goto __hw_end;
2590         /* disable interrupts */
2591         for (i = 0; i < chip->bdbars_count; i++)
2592                 iputbyte(chip, ICH_REG_OFF_CR + chip->ichd[i].reg_offset, 0x00);
2593         /* reset channels */
2594         for (i = 0; i < chip->bdbars_count; i++)
2595                 iputbyte(chip, ICH_REG_OFF_CR + chip->ichd[i].reg_offset, ICH_RESETREGS);
2596         if (chip->device_type == DEVICE_NFORCE && !spdif_aclink) {
2597                 /* stop the spdif interrupt */
2598                 unsigned int val;
2599                 pci_read_config_dword(chip->pci, 0x4c, &val);
2600                 val &= ~0x1000000;
2601                 pci_write_config_dword(chip->pci, 0x4c, val);
2602         }
2603         /* --- */
2604 
2605       __hw_end:
2606         if (chip->irq >= 0)
2607                 free_irq(chip->irq, chip);
2608         if (chip->bdbars.area) {
2609                 if (chip->fix_nocache)
2610                         fill_nocache(chip->bdbars.area, chip->bdbars.bytes, 0);
2611                 snd_dma_free_pages(&chip->bdbars);
2612         }
2613         if (chip->addr)
2614                 pci_iounmap(chip->pci, chip->addr);
2615         if (chip->bmaddr)
2616                 pci_iounmap(chip->pci, chip->bmaddr);
2617         pci_release_regions(chip->pci);
2618         pci_disable_device(chip->pci);
2619         kfree(chip);
2620         return 0;
2621 }
2622 
2623 #ifdef CONFIG_PM
2624 /*
2625  * power management
2626  */
2627 static int intel8x0_suspend(struct pci_dev *pci, pm_message_t state)
2628 {
2629         struct snd_card *card = pci_get_drvdata(pci);
2630         struct intel8x0 *chip = card->private_data;
2631         int i;
2632 
2633         snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
2634         for (i = 0; i < chip->pcm_devs; i++)
2635                 snd_pcm_suspend_all(chip->pcm[i]);
2636         /* clear nocache */
2637         if (chip->fix_nocache) {
2638                 for (i = 0; i < chip->bdbars_count; i++) {
2639                         struct ichdev *ichdev = &chip->ichd[i];
2640                         if (ichdev->substream && ichdev->page_attr_changed) {
2641                                 struct snd_pcm_runtime *runtime = ichdev->substream->runtime;
2642                                 if (runtime->dma_area)
2643                                         fill_nocache(runtime->dma_area, runtime->dma_bytes, 0);
2644                         }
2645                 }
2646         }
2647         for (i = 0; i < chip->ncodecs; i++)
2648                 snd_ac97_suspend(chip->ac97[i]);
2649         if (chip->device_type == DEVICE_INTEL_ICH4)
2650                 chip->sdm_saved = igetbyte(chip, ICHREG(SDM));
2651 
2652         if (chip->irq >= 0) {
2653                 free_irq(chip->irq, chip);
2654                 chip->irq = -1;
2655         }
2656         pci_disable_device(pci);
2657         pci_save_state(pci);
2658         /* The call below may disable built-in speaker on some laptops
2659          * after S2RAM.  So, don't touch it.
2660          */
2661         /* pci_set_power_state(pci, pci_choose_state(pci, state)); */
2662         return 0;
2663 }
2664 
2665 static int intel8x0_resume(struct pci_dev *pci)
2666 {
2667         struct snd_card *card = pci_get_drvdata(pci);
2668         struct intel8x0 *chip = card->private_data;
2669         int i;
2670 
2671         pci_set_power_state(pci, PCI_D0);
2672         pci_restore_state(pci);
2673         if (pci_enable_device(pci) < 0) {
2674                 printk(KERN_ERR "intel8x0: pci_enable_device failed, "
2675                        "disabling device\n");
2676                 snd_card_disconnect(card);
2677                 return -EIO;
2678         }
2679         pci_set_master(pci);
2680         snd_intel8x0_chip_init(chip, 0);
2681         if (request_irq(pci->irq, snd_intel8x0_interrupt,
2682                         IRQF_SHARED, KBUILD_MODNAME, chip)) {
2683                 printk(KERN_ERR "intel8x0: unable to grab IRQ %d, "
2684                        "disabling device\n", pci->irq);
2685                 snd_card_disconnect(card);
2686                 return -EIO;
2687         }
2688         chip->irq = pci->irq;
2689         synchronize_irq(chip->irq);
2690 
2691         /* re-initialize mixer stuff */
2692         if (chip->device_type == DEVICE_INTEL_ICH4 && !spdif_aclink) {
2693                 /* enable separate SDINs for ICH4 */
2694                 iputbyte(chip, ICHREG(SDM), chip->sdm_saved);
2695                 /* use slot 10/11 for SPDIF */
2696                 iputdword(chip, ICHREG(GLOB_CNT),
2697                           (igetdword(chip, ICHREG(GLOB_CNT)) & ~ICH_PCM_SPDIF_MASK) |
2698                           ICH_PCM_SPDIF_1011);
2699         }
2700 
2701         /* refill nocache */
2702         if (chip->fix_nocache)
2703                 fill_nocache(chip->bdbars.area, chip->bdbars.bytes, 1);
2704 
2705         for (i = 0; i < chip->ncodecs; i++)
2706                 snd_ac97_resume(chip->ac97[i]);
2707 
2708         /* refill nocache */
2709         if (chip->fix_nocache) {
2710                 for (i = 0; i < chip->bdbars_count; i++) {
2711                         struct ichdev *ichdev = &chip->ichd[i];
2712                         if (ichdev->substream && ichdev->page_attr_changed) {
2713                                 struct snd_pcm_runtime *runtime = ichdev->substream->runtime;
2714                                 if (runtime->dma_area)
2715                                         fill_nocache(runtime->dma_area, runtime->dma_bytes, 1);
2716                         }
2717                 }
2718         }
2719 
2720         /* resume status */
2721         for (i = 0; i < chip->bdbars_count; i++) {
2722                 struct ichdev *ichdev = &chip->ichd[i];
2723                 unsigned long port = ichdev->reg_offset;
2724                 if (! ichdev->substream || ! ichdev->suspended)
2725                         continue;
2726                 if (ichdev->ichd == ICHD_PCMOUT)
2727                         snd_intel8x0_setup_pcm_out(chip, ichdev->substream->runtime);
2728                 iputdword(chip, port + ICH_REG_OFF_BDBAR, ichdev->bdbar_addr);
2729                 iputbyte(chip, port + ICH_REG_OFF_LVI, ichdev->lvi);
2730                 iputbyte(chip, port + ICH_REG_OFF_CIV, ichdev->civ);
2731                 iputbyte(chip, port + ichdev->roff_sr, ICH_FIFOE | ICH_BCIS | ICH_LVBCI);
2732         }
2733 
2734         snd_power_change_state(card, SNDRV_CTL_POWER_D0);
2735         return 0;
2736 }
2737 #endif /* CONFIG_PM */
2738 
2739 #define INTEL8X0_TESTBUF_SIZE   32768   /* enough large for one shot */
2740 
2741 static void __devinit intel8x0_measure_ac97_clock(struct intel8x0 *chip)
2742 {
2743         struct snd_pcm_substream *subs;
2744         struct ichdev *ichdev;
2745         unsigned long port;
2746         unsigned long pos, pos1, t;
2747         int civ, timeout = 1000, attempt = 1;
2748         struct timespec start_time, stop_time;
2749 
2750         if (chip->ac97_bus->clock != 48000)
2751                 return; /* specified in module option */
2752 
2753       __again:
2754         subs = chip->pcm[0]->streams[0].substream;
2755         if (! subs || subs->dma_buffer.bytes < INTEL8X0_TESTBUF_SIZE) {
2756                 snd_printk(KERN_WARNING "no playback buffer allocated - aborting measure ac97 clock\n");
2757                 return;
2758         }
2759         ichdev = &chip->ichd[ICHD_PCMOUT];
2760         ichdev->physbuf = subs->dma_buffer.addr;
2761         ichdev->size = ichdev->fragsize = INTEL8X0_TESTBUF_SIZE;
2762         ichdev->substream = NULL; /* don't process interrupts */
2763 
2764         /* set rate */
2765         if (snd_ac97_set_rate(chip->ac97[0], AC97_PCM_FRONT_DAC_RATE, 48000) < 0) {
2766                 snd_printk(KERN_ERR "cannot set ac97 rate: clock = %d\n", chip->ac97_bus->clock);
2767                 return;
2768         }
2769         snd_intel8x0_setup_periods(chip, ichdev);
2770         port = ichdev->reg_offset;
2771         spin_lock_irq(&chip->reg_lock);
2772         chip->in_measurement = 1;
2773         /* trigger */
2774         if (chip->device_type != DEVICE_ALI)
2775                 iputbyte(chip, port + ICH_REG_OFF_CR, ICH_IOCE | ICH_STARTBM);
2776         else {
2777                 iputbyte(chip, port + ICH_REG_OFF_CR, ICH_IOCE);
2778                 iputdword(chip, ICHREG(ALI_DMACR), 1 << ichdev->ali_slot);
2779         }
2780         do_posix_clock_monotonic_gettime(&start_time);
2781         spin_unlock_irq(&chip->reg_lock);
2782         msleep(50);
2783         spin_lock_irq(&chip->reg_lock);
2784         /* check the position */
2785         do {
2786                 civ = igetbyte(chip, ichdev->reg_offset + ICH_REG_OFF_CIV);
2787                 pos1 = igetword(chip, ichdev->reg_offset + ichdev->roff_picb);
2788                 if (pos1 == 0) {
2789                         udelay(10);
2790                         continue;
2791                 }
2792                 if (civ == igetbyte(chip, ichdev->reg_offset + ICH_REG_OFF_CIV) &&
2793                     pos1 == igetword(chip, ichdev->reg_offset + ichdev->roff_picb))
2794                         break;
2795         } while (timeout--);
2796         if (pos1 == 0) {        /* oops, this value is not reliable */
2797                 pos = 0;
2798         } else {
2799                 pos = ichdev->fragsize1;
2800                 pos -= pos1 << ichdev->pos_shift;
2801                 pos += ichdev->position;
2802         }
2803         chip->in_measurement = 0;
2804         do_posix_clock_monotonic_gettime(&stop_time);
2805         /* stop */
2806         if (chip->device_type == DEVICE_ALI) {
2807                 iputdword(chip, ICHREG(ALI_DMACR), 1 << (ichdev->ali_slot + 16));
2808                 iputbyte(chip, port + ICH_REG_OFF_CR, 0);
2809                 while (igetbyte(chip, port + ICH_REG_OFF_CR))
2810                         ;
2811         } else {
2812                 iputbyte(chip, port + ICH_REG_OFF_CR, 0);
2813                 while (!(igetbyte(chip, port + ichdev->roff_sr) & ICH_DCH))
2814                         ;
2815         }
2816         iputbyte(chip, port + ICH_REG_OFF_CR, ICH_RESETREGS);
2817         spin_unlock_irq(&chip->reg_lock);
2818 
2819         if (pos == 0) {
2820                 snd_printk(KERN_ERR "intel8x0: measure - unreliable DMA position..\n");
2821               __retry:
2822                 if (attempt < 3) {
2823                         msleep(300);
2824                         attempt++;
2825                         goto __again;
2826                 }
2827                 goto __end;
2828         }
2829 
2830         pos /= 4;
2831         t = stop_time.tv_sec - start_time.tv_sec;
2832         t *= 1000000;
2833         t += (stop_time.tv_nsec - start_time.tv_nsec) / 1000;
2834         printk(KERN_INFO "%s: measured %lu usecs (%lu samples)\n", __func__, t, pos);
2835         if (t == 0) {
2836                 snd_printk(KERN_ERR "intel8x0: ?? calculation error..\n");
2837                 goto __retry;
2838         }
2839         pos *= 1000;
2840         pos = (pos / t) * 1000 + ((pos % t) * 1000) / t;
2841         if (pos < 40000 || pos >= 60000) {
2842                 /* abnormal value. hw problem? */
2843                 printk(KERN_INFO "intel8x0: measured clock %ld rejected\n", pos);
2844                 goto __retry;
2845         } else if (pos > 40500 && pos < 41500)
2846                 /* first exception - 41000Hz reference clock */
2847                 chip->ac97_bus->clock = 41000;
2848         else if (pos > 43600 && pos < 44600)
2849                 /* second exception - 44100HZ reference clock */
2850                 chip->ac97_bus->clock = 44100;
2851         else if (pos < 47500 || pos > 48500)
2852                 /* not 48000Hz, tuning the clock.. */
2853                 chip->ac97_bus->clock = (chip->ac97_bus->clock * 48000) / pos;
2854       __end:
2855         printk(KERN_INFO "intel8x0: clocking to %d\n", chip->ac97_bus->clock);
2856         snd_ac97_update_power(chip->ac97[0], AC97_PCM_FRONT_DAC_RATE, 0);
2857 }
2858 
2859 static struct snd_pci_quirk intel8x0_clock_list[] __devinitdata = {
2860         SND_PCI_QUIRK(0x0e11, 0x008a, "AD1885", 41000),
2861         SND_PCI_QUIRK(0x1014, 0x0581, "AD1981B", 48000),
2862         SND_PCI_QUIRK(0x1028, 0x00be, "AD1885", 44100),
2863         SND_PCI_QUIRK(0x1028, 0x0177, "AD1980", 48000),
2864         SND_PCI_QUIRK(0x1028, 0x01ad, "AD1981B", 48000),
2865         SND_PCI_QUIRK(0x1043, 0x80f3, "AD1985", 48000),
2866         { }     /* terminator */
2867 };
2868 
2869 static int __devinit intel8x0_in_clock_list(struct intel8x0 *chip)
2870 {
2871         struct pci_dev *pci = chip->pci;
2872         const struct snd_pci_quirk *wl;
2873 
2874         wl = snd_pci_quirk_lookup(pci, intel8x0_clock_list);
2875         if (!wl)
2876                 return 0;
2877         printk(KERN_INFO "intel8x0: white list rate for %04x:%04x is %i\n",
2878                pci->subsystem_vendor, pci->subsystem_device, wl->value);
2879         chip->ac97_bus->clock = wl->value;
2880         return 1;
2881 }
2882 
2883 #ifdef CONFIG_PROC_FS
2884 static void snd_intel8x0_proc_read(struct snd_info_entry * entry,
2885                                    struct snd_info_buffer *buffer)
2886 {
2887         struct intel8x0 *chip = entry->private_data;
2888         unsigned int tmp;
2889 
2890         snd_iprintf(buffer, "Intel8x0\n\n");
2891         if (chip->device_type == DEVICE_ALI)
2892                 return;
2893         tmp = igetdword(chip, ICHREG(GLOB_STA));
2894         snd_iprintf(buffer, "Global control        : 0x%08x\n", igetdword(chip, ICHREG(GLOB_CNT)));
2895         snd_iprintf(buffer, "Global status         : 0x%08x\n", tmp);
2896         if (chip->device_type == DEVICE_INTEL_ICH4)
2897                 snd_iprintf(buffer, "SDM                   : 0x%08x\n", igetdword(chip, ICHREG(SDM)));
2898         snd_iprintf(buffer, "AC'97 codecs ready    :");
2899         if (tmp & chip->codec_isr_bits) {
2900                 int i;
2901                 static const char *codecs[3] = {
2902                         "primary", "secondary", "tertiary"
2903                 };
2904                 for (i = 0; i < chip->max_codecs; i++)
2905                         if (tmp & chip->codec_bit[i])
2906                                 snd_iprintf(buffer, " %s", codecs[i]);
2907         } else
2908                 snd_iprintf(buffer, " none");
2909         snd_iprintf(buffer, "\n");
2910         if (chip->device_type == DEVICE_INTEL_ICH4 ||
2911             chip->device_type == DEVICE_SIS)
2912                 snd_iprintf(buffer, "AC'97 codecs SDIN     : %i %i %i\n",
2913                         chip->ac97_sdin[0],
2914                         chip->ac97_sdin[1],
2915                         chip->ac97_sdin[2]);
2916 }
2917 
2918 static void __devinit snd_intel8x0_proc_init(struct intel8x0 * chip)
2919 {
2920         struct snd_info_entry *entry;
2921 
2922         if (! snd_card_proc_new(chip->card, "intel8x0", &entry))
2923                 snd_info_set_text_ops(entry, chip, snd_intel8x0_proc_read);
2924 }
2925 #else
2926 #define snd_intel8x0_proc_init(x)
2927 #endif
2928 
2929 static int snd_intel8x0_dev_free(struct snd_device *device)
2930 {
2931         struct intel8x0 *chip = device->device_data;
2932         return snd_intel8x0_free(chip);
2933 }
2934 
2935 struct ich_reg_info {
2936         unsigned int int_sta_mask;
2937         unsigned int offset;
2938 };
2939 
2940 static unsigned int ich_codec_bits[3] = {
2941         ICH_PCR, ICH_SCR, ICH_TCR
2942 };
2943 static unsigned int sis_codec_bits[3] = {
2944         ICH_PCR, ICH_SCR, ICH_SIS_TCR
2945 };
2946 
2947 static int __devinit snd_intel8x0_inside_vm(struct pci_dev *pci)
2948 {
2949         int result  = inside_vm;
2950         char *msg   = NULL;
2951 
2952         /* check module parameter first (override detection) */
2953         if (result >= 0) {
2954                 msg = result ? "enable (forced) VM" : "disable (forced) VM";
2955                 goto fini;
2956         }
2957 
2958         /* detect KVM and Parallels virtual environments */
2959         result = kvm_para_available();
2960 #ifdef X86_FEATURE_HYPERVISOR
2961         result = result || boot_cpu_has(X86_FEATURE_HYPERVISOR);
2962 #endif
2963         if (!result)
2964                 goto fini;
2965 
2966         /* check for known (emulated) devices */
2967         if (pci->subsystem_vendor == 0x1af4 &&
2968             pci->subsystem_device == 0x1100) {
2969                 /* KVM emulated sound, PCI SSID: 1af4:1100 */
2970                 msg = "enable KVM";
2971         } else if (pci->subsystem_vendor == 0x1ab8) {
2972                 /* Parallels VM emulated sound, PCI SSID: 1ab8:xxxx */
2973                 msg = "enable Parallels VM";
2974         } else {
2975                 msg = "disable (unknown or VT-d) VM";
2976                 result = 0;
2977         }
2978 
2979 fini:
2980         if (msg != NULL)
2981                 printk(KERN_INFO "intel8x0: %s optimization\n", msg);
2982 
2983         return result;
2984 }
2985 
2986 static int __devinit snd_intel8x0_create(struct snd_card *card,
2987                                          struct pci_dev *pci,
2988                                          unsigned long device_type,
2989                                          struct intel8x0 ** r_intel8x0)
2990 {
2991         struct intel8x0 *chip;
2992         int err;
2993         unsigned int i;
2994         unsigned int int_sta_masks;
2995         struct ichdev *ichdev;
2996         static struct snd_device_ops ops = {
2997                 .dev_free =     snd_intel8x0_dev_free,
2998         };
2999 
3000         static unsigned int bdbars[] = {
3001                 3, /* DEVICE_INTEL */
3002                 6, /* DEVICE_INTEL_ICH4 */
3003                 3, /* DEVICE_SIS */
3004                 6, /* DEVICE_ALI */
3005                 4, /* DEVICE_NFORCE */
3006         };
3007         static struct ich_reg_info intel_regs[6] = {
3008                 { ICH_PIINT, 0 },
3009                 { ICH_POINT, 0x10 },
3010                 { ICH_MCINT, 0x20 },
3011                 { ICH_M2INT, 0x40 },
3012                 { ICH_P2INT, 0x50 },
3013                 { ICH_SPINT, 0x60 },
3014         };
3015         static struct ich_reg_info nforce_regs[4] = {
3016                 { ICH_PIINT, 0 },
3017                 { ICH_POINT, 0x10 },
3018                 { ICH_MCINT, 0x20 },
3019                 { ICH_NVSPINT, 0x70 },
3020         };
3021         static struct ich_reg_info ali_regs[6] = {
3022                 { ALI_INT_PCMIN, 0x40 },
3023                 { ALI_INT_PCMOUT, 0x50 },
3024                 { ALI_INT_MICIN, 0x60 },
3025                 { ALI_INT_CODECSPDIFOUT, 0x70 },
3026                 { ALI_INT_SPDIFIN, 0xa0 },
3027                 { ALI_INT_SPDIFOUT, 0xb0 },
3028         };
3029         struct ich_reg_info *tbl;
3030 
3031         *r_intel8x0 = NULL;
3032 
3033         if ((err = pci_enable_device(pci)) < 0)
3034                 return err;
3035 
3036         chip = kzalloc(sizeof(*chip), GFP_KERNEL);
3037         if (chip == NULL) {
3038                 pci_disable_device(pci);
3039                 return -ENOMEM;
3040         }
3041         spin_lock_init(&chip->reg_lock);
3042         chip->device_type = device_type;
3043         chip->card = card;
3044         chip->pci = pci;
3045         chip->irq = -1;
3046 
3047         /* module parameters */
3048         chip->buggy_irq = buggy_irq;
3049         chip->buggy_semaphore = buggy_semaphore;
3050         if (xbox)
3051                 chip->xbox = 1;
3052 
3053         chip->inside_vm = snd_intel8x0_inside_vm(pci);
3054 
3055         if (pci->vendor == PCI_VENDOR_ID_INTEL &&
3056             pci->device == PCI_DEVICE_ID_INTEL_440MX)
3057                 chip->fix_nocache = 1; /* enable workaround */
3058 
3059         if ((err = pci_request_regions(pci, card->shortname)) < 0) {
3060                 kfree(chip);
3061                 pci_disable_device(pci);
3062                 return err;
3063         }
3064 
3065         if (device_type == DEVICE_ALI) {
3066                 /* ALI5455 has no ac97 region */
3067                 chip->bmaddr = pci_iomap(pci, 0, 0);
3068                 goto port_inited;
3069         }
3070 
3071         if (pci_resource_flags(pci, 2) & IORESOURCE_MEM) /* ICH4 and Nforce */
3072                 chip->addr = pci_iomap(pci, 2, 0);
3073         else
3074                 chip->addr = pci_iomap(pci, 0, 0);
3075         if (!chip->addr) {
3076                 snd_printk(KERN_ERR "AC'97 space ioremap problem\n");
3077                 snd_intel8x0_free(chip);
3078                 return -EIO;
3079         }
3080         if (pci_resource_flags(pci, 3) & IORESOURCE_MEM) /* ICH4 */
3081                 chip->bmaddr = pci_iomap(pci, 3, 0);
3082         else
3083                 chip->bmaddr = pci_iomap(pci, 1, 0);
3084         if (!chip->bmaddr) {
3085                 snd_printk(KERN_ERR "Controller space ioremap problem\n");
3086                 snd_intel8x0_free(chip);
3087                 return -EIO;
3088         }
3089 
3090  port_inited:
3091         chip->bdbars_count = bdbars[device_type];
3092 
3093         /* initialize offsets */
3094         switch (device_type) {
3095         case DEVICE_NFORCE:
3096                 tbl = nforce_regs;
3097                 break;
3098         case DEVICE_ALI:
3099                 tbl = ali_regs;
3100                 break;
3101         default:
3102                 tbl = intel_regs;
3103                 break;
3104         }
3105         for (i = 0; i < chip->bdbars_count; i++) {
3106                 ichdev = &chip->ichd[i];
3107                 ichdev->ichd = i;
3108                 ichdev->reg_offset = tbl[i].offset;
3109                 ichdev->int_sta_mask = tbl[i].int_sta_mask;
3110                 if (device_type == DEVICE_SIS) {
3111                         /* SiS 7012 swaps the registers */
3112                         ichdev->roff_sr = ICH_REG_OFF_PICB;
3113                         ichdev->roff_picb = ICH_REG_OFF_SR;
3114                 } else {
3115                         ichdev->roff_sr = ICH_REG_OFF_SR;
3116                         ichdev->roff_picb = ICH_REG_OFF_PICB;
3117                 }
3118                 if (device_type == DEVICE_ALI)
3119                         ichdev->ali_slot = (ichdev->reg_offset - 0x40) / 0x10;
3120                 /* SIS7012 handles the pcm data in bytes, others are in samples */
3121                 ichdev->pos_shift = (device_type == DEVICE_SIS) ? 0 : 1;
3122         }
3123 
3124         /* allocate buffer descriptor lists */
3125         /* the start of each lists must be aligned to 8 bytes */
3126         if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci),
3127                                 chip->bdbars_count * sizeof(u32) * ICH_MAX_FRAGS * 2,
3128                                 &chip->bdbars) < 0) {
3129                 snd_intel8x0_free(chip);
3130                 snd_printk(KERN_ERR "intel8x0: cannot allocate buffer descriptors\n");
3131                 return -ENOMEM;
3132         }
3133         /* tables must be aligned to 8 bytes here, but the kernel pages
3134            are much bigger, so we don't care (on i386) */
3135         /* workaround for 440MX */
3136         if (chip->fix_nocache)
3137                 fill_nocache(chip->bdbars.area, chip->bdbars.bytes, 1);
3138         int_sta_masks = 0;
3139         for (i = 0; i < chip->bdbars_count; i++) {
3140                 ichdev = &chip->ichd[i];
3141                 ichdev->bdbar = ((u32 *)chip->bdbars.area) +
3142                         (i * ICH_MAX_FRAGS * 2);
3143                 ichdev->bdbar_addr = chip->bdbars.addr +
3144                         (i * sizeof(u32) * ICH_MAX_FRAGS * 2);
3145                 int_sta_masks |= ichdev->int_sta_mask;
3146         }
3147         chip->int_sta_reg = device_type == DEVICE_ALI ?
3148                 ICH_REG_ALI_INTERRUPTSR : ICH_REG_GLOB_STA;
3149         chip->int_sta_mask = int_sta_masks;
3150 
3151         pci_set_master(pci);
3152 
3153         switch(chip->device_type) {
3154         case DEVICE_INTEL_ICH4:
3155                 /* ICH4 can have three codecs */
3156                 chip->max_codecs = 3;
3157                 chip->codec_bit = ich_codec_bits;
3158                 chip->codec_ready_bits = ICH_PRI | ICH_SRI | ICH_TRI;
3159                 break;
3160         case DEVICE_SIS:
3161                 /* recent SIS7012 can have three codecs */
3162                 chip->max_codecs = 3;
3163                 chip->codec_bit = sis_codec_bits;
3164                 chip->codec_ready_bits = ICH_PRI | ICH_SRI | ICH_SIS_TRI;
3165                 break;
3166         default:
3167                 /* others up to two codecs */
3168                 chip->max_codecs = 2;
3169                 chip->codec_bit = ich_codec_bits;
3170                 chip->codec_ready_bits = ICH_PRI | ICH_SRI;
3171                 break;
3172         }
3173         for (i = 0; i < chip->max_codecs; i++)
3174                 chip->codec_isr_bits |= chip->codec_bit[i];
3175 
3176         if ((err = snd_intel8x0_chip_init(chip, 1)) < 0) {
3177                 snd_intel8x0_free(chip);
3178                 return err;
3179         }
3180 
3181         /* request irq after initializaing int_sta_mask, etc */
3182         if (request_irq(pci->irq, snd_intel8x0_interrupt,
3183                         IRQF_SHARED, KBUILD_MODNAME, chip)) {
3184                 snd_printk(KERN_ERR "unable to grab IRQ %d\n", pci->irq);
3185                 snd_intel8x0_free(chip);
3186                 return -EBUSY;
3187         }
3188         chip->irq = pci->irq;
3189 
3190         if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
3191                 snd_intel8x0_free(chip);
3192                 return err;
3193         }
3194 
3195         snd_card_set_dev(card, &pci->dev);
3196 
3197         *r_intel8x0 = chip;
3198         return 0;
3199 }
3200 
3201 static struct shortname_table {
3202         unsigned int id;
3203         const char *s;
3204 } shortnames[] __devinitdata = {
3205         { PCI_DEVICE_ID_INTEL_82801AA_5, "Intel 82801AA-ICH" },
3206         { PCI_DEVICE_ID_INTEL_82801AB_5, "Intel 82901AB-ICH0" },
3207         { PCI_DEVICE_ID_INTEL_82801BA_4, "Intel 82801BA-ICH2" },
3208         { PCI_DEVICE_ID_INTEL_440MX, "Intel 440MX" },
3209         { PCI_DEVICE_ID_INTEL_82801CA_5, "Intel 82801CA-ICH3" },
3210         { PCI_DEVICE_ID_INTEL_82801DB_5, "Intel 82801DB-ICH4" },
3211         { PCI_DEVICE_ID_INTEL_82801EB_5, "Intel ICH5" },
3212         { PCI_DEVICE_ID_INTEL_ESB_5, "Intel 6300ESB" },
3213         { PCI_DEVICE_ID_INTEL_ICH6_18, "Intel ICH6" },
3214         { PCI_DEVICE_ID_INTEL_ICH7_20, "Intel ICH7" },
3215         { PCI_DEVICE_ID_INTEL_ESB2_14, "Intel ESB2" },
3216         { PCI_DEVICE_ID_SI_7012, "SiS SI7012" },
3217         { PCI_DEVICE_ID_NVIDIA_MCP1_AUDIO, "NVidia nForce" },
3218         { PCI_DEVICE_ID_NVIDIA_MCP2_AUDIO, "NVidia nForce2" },
3219         { PCI_DEVICE_ID_NVIDIA_MCP3_AUDIO, "NVidia nForce3" },
3220         { PCI_DEVICE_ID_NVIDIA_CK8S_AUDIO, "NVidia CK8S" },
3221         { PCI_DEVICE_ID_NVIDIA_CK804_AUDIO, "NVidia CK804" },
3222         { PCI_DEVICE_ID_NVIDIA_CK8_AUDIO, "NVidia CK8" },
3223         { 0x003a, "NVidia MCP04" },
3224         { 0x746d, "AMD AMD8111" },
3225         { 0x7445, "AMD AMD768" },
3226         { 0x5455, "ALi M5455" },
3227         { 0, NULL },
3228 };
3229 
3230 static struct snd_pci_quirk spdif_aclink_defaults[] __devinitdata = {
3231         SND_PCI_QUIRK(0x147b, 0x1c1a, "ASUS KN8", 1),
3232         { } /* end */
3233 };
3234 
3235 /* look up white/black list for SPDIF over ac-link */
3236 static int __devinit check_default_spdif_aclink(struct pci_dev *pci)
3237 {
3238         const struct snd_pci_quirk *w;
3239 
3240         w = snd_pci_quirk_lookup(pci, spdif_aclink_defaults);
3241         if (w) {
3242                 if (w->value)
3243                         snd_printdd(KERN_INFO "intel8x0: Using SPDIF over "
3244                                     "AC-Link for %s\n", w->name);
3245                 else
3246                         snd_printdd(KERN_INFO "intel8x0: Using integrated "
3247                                     "SPDIF DMA for %s\n", w->name);
3248                 return w->value;
3249         }
3250         return 0;
3251 }
3252 
3253 static int __devinit snd_intel8x0_probe(struct pci_dev *pci,
3254                                         const struct pci_device_id *pci_id)
3255 {
3256         struct snd_card *card;
3257         struct intel8x0 *chip;
3258         int err;
3259         struct shortname_table *name;
3260 
3261         err = snd_card_create(index, id, THIS_MODULE, 0, &card);
3262         if (err < 0)
3263                 return err;
3264 
3265         if (spdif_aclink < 0)
3266                 spdif_aclink = check_default_spdif_aclink(pci);
3267 
3268         strcpy(card->driver, "ICH");
3269         if (!spdif_aclink) {
3270                 switch (pci_id->driver_data) {
3271                 case DEVICE_NFORCE:
3272                         strcpy(card->driver, "NFORCE");
3273                         break;
3274                 case DEVICE_INTEL_ICH4:
3275                         strcpy(card->driver, "ICH4");
3276                 }
3277         }
3278 
3279         strcpy(card->shortname, "Intel ICH");
3280         for (name = shortnames; name->id; name++) {
3281                 if (pci->device == name->id) {
3282                         strcpy(card->shortname, name->s);
3283                         break;
3284                 }
3285         }
3286 
3287         if (buggy_irq < 0) {
3288                 /* some Nforce[2] and ICH boards have problems with IRQ handling.
3289                  * Needs to return IRQ_HANDLED for unknown irqs.
3290                  */
3291                 if (pci_id->driver_data == DEVICE_NFORCE)
3292                         buggy_irq = 1;
3293                 else
3294                         buggy_irq = 0;
3295         }
3296 
3297         if ((err = snd_intel8x0_create(card, pci, pci_id->driver_data,
3298                                        &chip)) < 0) {
3299                 snd_card_free(card);
3300                 return err;
3301         }
3302         card->private_data = chip;
3303 
3304         if ((err = snd_intel8x0_mixer(chip, ac97_clock, ac97_quirk)) < 0) {
3305                 snd_card_free(card);
3306                 return err;
3307         }
3308         if ((err = snd_intel8x0_pcm(chip)) < 0) {
3309                 snd_card_free(card);
3310                 return err;
3311         }
3312         
3313         snd_intel8x0_proc_init(chip);
3314 
3315         snprintf(card->longname, sizeof(card->longname),
3316                  "%s with %s at irq %i", card->shortname,
3317                  snd_ac97_get_short_name(chip->ac97[0]), chip->irq);
3318 
3319         if (ac97_clock == 0 || ac97_clock == 1) {
3320                 if (ac97_clock == 0) {
3321                         if (intel8x0_in_clock_list(chip) == 0)
3322                                 intel8x0_measure_ac97_clock(chip);
3323                 } else {
3324                         intel8x0_measure_ac97_clock(chip);
3325                 }
3326         }
3327 
3328         if ((err = snd_card_register(card)) < 0) {
3329                 snd_card_free(card);
3330                 return err;
3331         }
3332         pci_set_drvdata(pci, card);
3333         return 0;
3334 }
3335 
3336 static void __devexit snd_intel8x0_remove(struct pci_dev *pci)
3337 {
3338         snd_card_free(pci_get_drvdata(pci));
3339         pci_set_drvdata(pci, NULL);
3340 }
3341 
3342 static struct pci_driver driver = {
3343         .name = KBUILD_MODNAME,
3344         .id_table = snd_intel8x0_ids,
3345         .probe = snd_intel8x0_probe,
3346         .remove = __devexit_p(snd_intel8x0_remove),
3347 #ifdef CONFIG_PM
3348         .suspend = intel8x0_suspend,
3349         .resume = intel8x0_resume,
3350 #endif
3351 };
3352 
3353 
3354 static int __init alsa_card_intel8x0_init(void)
3355 {
3356         return pci_register_driver(&driver);
3357 }
3358 
3359 static void __exit alsa_card_intel8x0_exit(void)
3360 {
3361         pci_unregister_driver(&driver);
3362 }
3363 
3364 module_init(alsa_card_intel8x0_init)
3365 module_exit(alsa_card_intel8x0_exit)
3366 

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