git.oblomov.eu Git - linux-2.6/blob - sound/pci/intel8x0.c

   1 /*
   2  *   ALSA driver for Intel ICH (i8x0) chipsets
   3  *
   4  *      Copyright (c) 2000 Jaroslav Kysela <perex@suse.cz>
   5  *
   6  *
   7  *   This code also contains alpha support for SiS 735 chipsets provided
   8  *   by Mike Pieper <mptei@users.sourceforge.net>. We have no datasheet
   9  *   for SiS735, so the code is not fully functional.
  10  *
  11  *
  12  *   This program is free software; you can redistribute it and/or modify
  13  *   it under the terms of the GNU General Public License as published by
  14  *   the Free Software Foundation; either version 2 of the License, or
  15  *   (at your option) any later version.
  16  *
  17  *   This program is distributed in the hope that it will be useful,
  18  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  19  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20  *   GNU General Public License for more details.
  21  *
  22  *   You should have received a copy of the GNU General Public License
  23  *   along with this program; if not, write to the Free Software
  24  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  25
  26  *
  27  */
  28
  29 #include <sound/driver.h>
  30 #include <asm/io.h>
  31 #include <linux/delay.h>
  32 #include <linux/interrupt.h>
  33 #include <linux/init.h>
  34 #include <linux/pci.h>
  35 #include <linux/slab.h>
  36 #include <linux/moduleparam.h>
  37 #include <sound/core.h>
  38 #include <sound/pcm.h>
  39 #include <sound/ac97_codec.h>
  40 #include <sound/info.h>
  41 #include <sound/initval.h>
  42 /* for 440MX workaround */
  43 #include <asm/pgtable.h>
  44 #include <asm/cacheflush.h>
  45
  46 MODULE_AUTHOR("Jaroslav Kysela <perex@suse.cz>");
  47 MODULE_DESCRIPTION("Intel 82801AA,82901AB,i810,i820,i830,i840,i845,MX440; SiS 7012; Ali 5455");
  48 MODULE_LICENSE("GPL");
  49 MODULE_SUPPORTED_DEVICE("{{Intel,82801AA-ICH},"
  50                 "{Intel,82901AB-ICH0},"
  51                 "{Intel,82801BA-ICH2},"
  52                 "{Intel,82801CA-ICH3},"
  53                 "{Intel,82801DB-ICH4},"
  54                 "{Intel,ICH5},"
  55                 "{Intel,ICH6},"
  56                 "{Intel,ICH7},"
  57                 "{Intel,6300ESB},"
  58                 "{Intel,ESB2},"
  59                 "{Intel,MX440},"
  60                 "{SiS,SI7012},"
  61                 "{NVidia,nForce Audio},"
  62                 "{NVidia,nForce2 Audio},"
  63                 "{AMD,AMD768},"
  64                 "{AMD,AMD8111},"
  65                 "{ALI,M5455}}");
  66
  67 static int index = SNDRV_DEFAULT_IDX1;  /* Index 0-MAX */
  68 static char *id = SNDRV_DEFAULT_STR1;   /* ID for this card */
  69 static int ac97_clock;
  70 static char *ac97_quirk;
  71 static int buggy_semaphore;
  72 static int buggy_irq = -1; /* auto-check */
  73 static int xbox;
  74
  75 module_param(index, int, 0444);
  76 MODULE_PARM_DESC(index, "Index value for Intel i8x0 soundcard.");
  77 module_param(id, charp, 0444);
  78 MODULE_PARM_DESC(id, "ID string for Intel i8x0 soundcard.");
  79 module_param(ac97_clock, int, 0444);
  80 MODULE_PARM_DESC(ac97_clock, "AC'97 codec clock (0 = auto-detect).");
  81 module_param(ac97_quirk, charp, 0444);
  82 MODULE_PARM_DESC(ac97_quirk, "AC'97 workaround for strange hardware.");
  83 module_param(buggy_semaphore, bool, 0444);
  84 MODULE_PARM_DESC(buggy_semaphore, "Enable workaround for hardwares with problematic codec semaphores.");
  85 module_param(buggy_irq, bool, 0444);
  86 MODULE_PARM_DESC(buggy_irq, "Enable workaround for buggy interrupts on some motherboards.");
  87 module_param(xbox, bool, 0444);
  88 MODULE_PARM_DESC(xbox, "Set to 1 for Xbox, if you have problems with the AC'97 codec detection.");
  89
  90 /* just for backward compatibility */
  91 static int enable;
  92 module_param(enable, bool, 0444);
  93 static int joystick;
  94 module_param(joystick, int, 0444);
  95
  96 /*
  97  *  Direct registers
  98  */
  99 enum { DEVICE_INTEL, DEVICE_INTEL_ICH4, DEVICE_SIS, DEVICE_ALI, DEVICE_NFORCE };
 100
 101 #define ICHREG(x) ICH_REG_##x
 102
 103 #define DEFINE_REGSET(name,base) \
 104 enum { \
 105         ICH_REG_##name##_BDBAR  = base + 0x0,   /* dword - buffer descriptor list base address */ \
 106         ICH_REG_##name##_CIV    = base + 0x04,  /* byte - current index value */ \
 107         ICH_REG_##name##_LVI    = base + 0x05,  /* byte - last valid index */ \
 108         ICH_REG_##name##_SR     = base + 0x06,  /* byte - status register */ \
 109         ICH_REG_##name##_PICB   = base + 0x08,  /* word - position in current buffer */ \
 110         ICH_REG_##name##_PIV    = base + 0x0a,  /* byte - prefetched index value */ \
 111         ICH_REG_##name##_CR     = base + 0x0b,  /* byte - control register */ \
 112 };
 113
 114 /* busmaster blocks */
 115 DEFINE_REGSET(OFF, 0);          /* offset */
 116 DEFINE_REGSET(PI, 0x00);        /* PCM in */
 117 DEFINE_REGSET(PO, 0x10);        /* PCM out */
 118 DEFINE_REGSET(MC, 0x20);        /* Mic in */
 119
 120 /* ICH4 busmaster blocks */
 121 DEFINE_REGSET(MC2, 0x40);       /* Mic in 2 */
 122 DEFINE_REGSET(PI2, 0x50);       /* PCM in 2 */
 123 DEFINE_REGSET(SP, 0x60);        /* SPDIF out */
 124
 125 /* values for each busmaster block */
 126
 127 /* LVI */
 128 #define ICH_REG_LVI_MASK                0x1f
 129
 130 /* SR */
 131 #define ICH_FIFOE                       0x10    /* FIFO error */
 132 #define ICH_BCIS                        0x08    /* buffer completion interrupt status */
 133 #define ICH_LVBCI                       0x04    /* last valid buffer completion interrupt */
 134 #define ICH_CELV                        0x02    /* current equals last valid */
 135 #define ICH_DCH                         0x01    /* DMA controller halted */
 136
 137 /* PIV */
 138 #define ICH_REG_PIV_MASK                0x1f    /* mask */
 139
 140 /* CR */
 141 #define ICH_IOCE                        0x10    /* interrupt on completion enable */
 142 #define ICH_FEIE                        0x08    /* fifo error interrupt enable */
 143 #define ICH_LVBIE                       0x04    /* last valid buffer interrupt enable */
 144 #define ICH_RESETREGS                   0x02    /* reset busmaster registers */
 145 #define ICH_STARTBM                     0x01    /* start busmaster operation */
 146
 147
 148 /* global block */
 149 #define ICH_REG_GLOB_CNT                0x2c    /* dword - global control */
 150 #define   ICH_PCM_SPDIF_MASK    0xc0000000      /* s/pdif pcm slot mask (ICH4) */
 151 #define   ICH_PCM_SPDIF_NONE    0x00000000      /* reserved - undefined */
 152 #define   ICH_PCM_SPDIF_78      0x40000000      /* s/pdif pcm on slots 7&8 */
 153 #define   ICH_PCM_SPDIF_69      0x80000000      /* s/pdif pcm on slots 6&9 */
 154 #define   ICH_PCM_SPDIF_1011    0xc0000000      /* s/pdif pcm on slots 10&11 */
 155 #define   ICH_PCM_20BIT         0x00400000      /* 20-bit samples (ICH4) */
 156 #define   ICH_PCM_246_MASK      0x00300000      /* 6 channels (not all chips) */
 157 #define   ICH_PCM_6             0x00200000      /* 6 channels (not all chips) */
 158 #define   ICH_PCM_4             0x00100000      /* 4 channels (not all chips) */
 159 #define   ICH_PCM_2             0x00000000      /* 2 channels (stereo) */
 160 #define   ICH_SIS_PCM_246_MASK  0x000000c0      /* 6 channels (SIS7012) */
 161 #define   ICH_SIS_PCM_6         0x00000080      /* 6 channels (SIS7012) */
 162 #define   ICH_SIS_PCM_4         0x00000040      /* 4 channels (SIS7012) */
 163 #define   ICH_SIS_PCM_2         0x00000000      /* 2 channels (SIS7012) */
 164 #define   ICH_TRIE              0x00000040      /* tertiary resume interrupt enable */
 165 #define   ICH_SRIE              0x00000020      /* secondary resume interrupt enable */
 166 #define   ICH_PRIE              0x00000010      /* primary resume interrupt enable */
 167 #define   ICH_ACLINK            0x00000008      /* AClink shut off */
 168 #define   ICH_AC97WARM          0x00000004      /* AC'97 warm reset */
 169 #define   ICH_AC97COLD          0x00000002      /* AC'97 cold reset */
 170 #define   ICH_GIE               0x00000001      /* GPI interrupt enable */
 171 #define ICH_REG_GLOB_STA                0x30    /* dword - global status */
 172 #define   ICH_TRI               0x20000000      /* ICH4: tertiary (AC_SDIN2) resume interrupt */
 173 #define   ICH_TCR               0x10000000      /* ICH4: tertiary (AC_SDIN2) codec ready */
 174 #define   ICH_BCS               0x08000000      /* ICH4: bit clock stopped */
 175 #define   ICH_SPINT             0x04000000      /* ICH4: S/PDIF interrupt */
 176 #define   ICH_P2INT             0x02000000      /* ICH4: PCM2-In interrupt */
 177 #define   ICH_M2INT             0x01000000      /* ICH4: Mic2-In interrupt */
 178 #define   ICH_SAMPLE_CAP        0x00c00000      /* ICH4: sample capability bits (RO) */
 179 #define   ICH_SAMPLE_16_20      0x00400000      /* ICH4: 16- and 20-bit samples */
 180 #define   ICH_MULTICHAN_CAP     0x00300000      /* ICH4: multi-channel capability bits (RO) */
 181 #define   ICH_SIS_TRI           0x00080000      /* SIS: tertiary resume irq */
 182 #define   ICH_SIS_TCR           0x00040000      /* SIS: tertiary codec ready */
 183 #define   ICH_MD3               0x00020000      /* modem power down semaphore */
 184 #define   ICH_AD3               0x00010000      /* audio power down semaphore */
 185 #define   ICH_RCS               0x00008000      /* read completion status */
 186 #define   ICH_BIT3              0x00004000      /* bit 3 slot 12 */
 187 #define   ICH_BIT2              0x00002000      /* bit 2 slot 12 */
 188 #define   ICH_BIT1              0x00001000      /* bit 1 slot 12 */
 189 #define   ICH_SRI               0x00000800      /* secondary (AC_SDIN1) resume interrupt */
 190 #define   ICH_PRI               0x00000400      /* primary (AC_SDIN0) resume interrupt */
 191 #define   ICH_SCR               0x00000200      /* secondary (AC_SDIN1) codec ready */
 192 #define   ICH_PCR               0x00000100      /* primary (AC_SDIN0) codec ready */
 193 #define   ICH_MCINT             0x00000080      /* MIC capture interrupt */
 194 #define   ICH_POINT             0x00000040      /* playback interrupt */
 195 #define   ICH_PIINT             0x00000020      /* capture interrupt */
 196 #define   ICH_NVSPINT           0x00000010      /* nforce spdif interrupt */
 197 #define   ICH_MOINT             0x00000004      /* modem playback interrupt */
 198 #define   ICH_MIINT             0x00000002      /* modem capture interrupt */
 199 #define   ICH_GSCI              0x00000001      /* GPI status change interrupt */
 200 #define ICH_REG_ACC_SEMA                0x34    /* byte - codec write semaphore */
 201 #define   ICH_CAS               0x01            /* codec access semaphore */
 202 #define ICH_REG_SDM             0x80
 203 #define   ICH_DI2L_MASK         0x000000c0      /* PCM In 2, Mic In 2 data in line */
 204 #define   ICH_DI2L_SHIFT        6
 205 #define   ICH_DI1L_MASK         0x00000030      /* PCM In 1, Mic In 1 data in line */
 206 #define   ICH_DI1L_SHIFT        4
 207 #define   ICH_SE                0x00000008      /* steer enable */
 208 #define   ICH_LDI_MASK          0x00000003      /* last codec read data input */
 209
 210 #define ICH_MAX_FRAGS           32              /* max hw frags */
 211
 212
 213 /*
 214  * registers for Ali5455
 215  */
 216
 217 /* ALi 5455 busmaster blocks */
 218 DEFINE_REGSET(AL_PI, 0x40);     /* ALi PCM in */
 219 DEFINE_REGSET(AL_PO, 0x50);     /* Ali PCM out */
 220 DEFINE_REGSET(AL_MC, 0x60);     /* Ali Mic in */
 221 DEFINE_REGSET(AL_CDC_SPO, 0x70);        /* Ali Codec SPDIF out */
 222 DEFINE_REGSET(AL_CENTER, 0x80);         /* Ali center out */
 223 DEFINE_REGSET(AL_LFE, 0x90);            /* Ali center out */
 224 DEFINE_REGSET(AL_CLR_SPI, 0xa0);        /* Ali Controller SPDIF in */
 225 DEFINE_REGSET(AL_CLR_SPO, 0xb0);        /* Ali Controller SPDIF out */
 226 DEFINE_REGSET(AL_I2S, 0xc0);    /* Ali I2S in */
 227 DEFINE_REGSET(AL_PI2, 0xd0);    /* Ali PCM2 in */
 228 DEFINE_REGSET(AL_MC2, 0xe0);    /* Ali Mic2 in */
 229
 230 enum {
 231         ICH_REG_ALI_SCR = 0x00,         /* System Control Register */
 232         ICH_REG_ALI_SSR = 0x04,         /* System Status Register  */
 233         ICH_REG_ALI_DMACR = 0x08,       /* DMA Control Register    */
 234         ICH_REG_ALI_FIFOCR1 = 0x0c,     /* FIFO Control Register 1  */
 235         ICH_REG_ALI_INTERFACECR = 0x10, /* Interface Control Register */
 236         ICH_REG_ALI_INTERRUPTCR = 0x14, /* Interrupt control Register */
 237         ICH_REG_ALI_INTERRUPTSR = 0x18, /* Interrupt  Status Register */
 238         ICH_REG_ALI_FIFOCR2 = 0x1c,     /* FIFO Control Register 2   */
 239         ICH_REG_ALI_CPR = 0x20,         /* Command Port Register     */
 240         ICH_REG_ALI_CPR_ADDR = 0x22,    /* ac97 addr write */
 241         ICH_REG_ALI_SPR = 0x24,         /* Status Port Register      */
 242         ICH_REG_ALI_SPR_ADDR = 0x26,    /* ac97 addr read */
 243         ICH_REG_ALI_FIFOCR3 = 0x2c,     /* FIFO Control Register 3  */
 244         ICH_REG_ALI_TTSR = 0x30,        /* Transmit Tag Slot Register */
 245         ICH_REG_ALI_RTSR = 0x34,        /* Receive Tag Slot  Register */
 246         ICH_REG_ALI_CSPSR = 0x38,       /* Command/Status Port Status Register */
 247         ICH_REG_ALI_CAS = 0x3c,         /* Codec Write Semaphore Register */
 248         ICH_REG_ALI_HWVOL = 0xf0,       /* hardware volume control/status */
 249         ICH_REG_ALI_I2SCR = 0xf4,       /* I2S control/status */
 250         ICH_REG_ALI_SPDIFCSR = 0xf8,    /* spdif channel status register  */
 251         ICH_REG_ALI_SPDIFICS = 0xfc,    /* spdif interface control/status  */
 252 };
 253
 254 #define ALI_CAS_SEM_BUSY        0x80000000
 255 #define ALI_CPR_ADDR_SECONDARY  0x100
 256 #define ALI_CPR_ADDR_READ       0x80
 257 #define ALI_CSPSR_CODEC_READY   0x08
 258 #define ALI_CSPSR_READ_OK       0x02
 259 #define ALI_CSPSR_WRITE_OK      0x01
 260
 261 /* interrupts for the whole chip by interrupt status register finish */
 262
 263 #define ALI_INT_MICIN2          (1<<26)
 264 #define ALI_INT_PCMIN2          (1<<25)
 265 #define ALI_INT_I2SIN           (1<<24)
 266 #define ALI_INT_SPDIFOUT        (1<<23) /* controller spdif out INTERRUPT */
 267 #define ALI_INT_SPDIFIN         (1<<22)
 268 #define ALI_INT_LFEOUT          (1<<21)
 269 #define ALI_INT_CENTEROUT       (1<<20)
 270 #define ALI_INT_CODECSPDIFOUT   (1<<19)
 271 #define ALI_INT_MICIN           (1<<18)
 272 #define ALI_INT_PCMOUT          (1<<17)
 273 #define ALI_INT_PCMIN           (1<<16)
 274 #define ALI_INT_CPRAIS          (1<<7)  /* command port available */
 275 #define ALI_INT_SPRAIS          (1<<5)  /* status port available */
 276 #define ALI_INT_GPIO            (1<<1)
 277 #define ALI_INT_MASK            (ALI_INT_SPDIFOUT|ALI_INT_CODECSPDIFOUT|\
 278                                  ALI_INT_MICIN|ALI_INT_PCMOUT|ALI_INT_PCMIN)
 279
 280 #define ICH_ALI_SC_RESET        (1<<31) /* master reset */
 281 #define ICH_ALI_SC_AC97_DBL     (1<<30)
 282 #define ICH_ALI_SC_CODEC_SPDF   (3<<20) /* 1=7/8, 2=6/9, 3=10/11 */
 283 #define ICH_ALI_SC_IN_BITS      (3<<18)
 284 #define ICH_ALI_SC_OUT_BITS     (3<<16)
 285 #define ICH_ALI_SC_6CH_CFG      (3<<14)
 286 #define ICH_ALI_SC_PCM_4        (1<<8)
 287 #define ICH_ALI_SC_PCM_6        (2<<8)
 288 #define ICH_ALI_SC_PCM_246_MASK (3<<8)
 289
 290 #define ICH_ALI_SS_SEC_ID       (3<<5)
 291 #define ICH_ALI_SS_PRI_ID       (3<<3)
 292
 293 #define ICH_ALI_IF_AC97SP       (1<<21)
 294 #define ICH_ALI_IF_MC           (1<<20)
 295 #define ICH_ALI_IF_PI           (1<<19)
 296 #define ICH_ALI_IF_MC2          (1<<18)
 297 #define ICH_ALI_IF_PI2          (1<<17)
 298 #define ICH_ALI_IF_LINE_SRC     (1<<15) /* 0/1 = slot 3/6 */
 299 #define ICH_ALI_IF_MIC_SRC      (1<<14) /* 0/1 = slot 3/6 */
 300 #define ICH_ALI_IF_SPDF_SRC     (3<<12) /* 00 = PCM, 01 = AC97-in, 10 = spdif-in, 11 = i2s */
 301 #define ICH_ALI_IF_AC97_OUT     (3<<8)  /* 00 = PCM, 10 = spdif-in, 11 = i2s */
 302 #define ICH_ALI_IF_PO_SPDF      (1<<3)
 303 #define ICH_ALI_IF_PO           (1<<1)
 304
 305 /*
 306  *
 307  */
 308
 309 enum {
 310         ICHD_PCMIN,
 311         ICHD_PCMOUT,
 312         ICHD_MIC,
 313         ICHD_MIC2,
 314         ICHD_PCM2IN,
 315         ICHD_SPBAR,
 316         ICHD_LAST = ICHD_SPBAR
 317 };
 318 enum {
 319         NVD_PCMIN,
 320         NVD_PCMOUT,
 321         NVD_MIC,
 322         NVD_SPBAR,
 323         NVD_LAST = NVD_SPBAR
 324 };
 325 enum {
 326         ALID_PCMIN,
 327         ALID_PCMOUT,
 328         ALID_MIC,
 329         ALID_AC97SPDIFOUT,
 330         ALID_SPDIFIN,
 331         ALID_SPDIFOUT,
 332         ALID_LAST = ALID_SPDIFOUT
 333 };
 334
 335 #define get_ichdev(substream) (substream->runtime->private_data)
 336
 337 struct ichdev {
 338         unsigned int ichd;                      /* ich device number */
 339         unsigned long reg_offset;               /* offset to bmaddr */
 340         u32 *bdbar;                             /* CPU address (32bit) */
 341         unsigned int bdbar_addr;                /* PCI bus address (32bit) */
 342         struct snd_pcm_substream *substream;
 343         unsigned int physbuf;                   /* physical address (32bit) */
 344         unsigned int size;
 345         unsigned int fragsize;
 346         unsigned int fragsize1;
 347         unsigned int position;
 348         unsigned int pos_shift;
 349         int frags;
 350         int lvi;
 351         int lvi_frag;
 352         int civ;
 353         int ack;
 354         int ack_reload;
 355         unsigned int ack_bit;
 356         unsigned int roff_sr;
 357         unsigned int roff_picb;
 358         unsigned int int_sta_mask;              /* interrupt status mask */
 359         unsigned int ali_slot;                  /* ALI DMA slot */
 360         struct ac97_pcm *pcm;
 361         int pcm_open_flag;
 362         unsigned int page_attr_changed: 1;
 363         unsigned int suspended: 1;
 364 };
 365
 366 struct intel8x0 {
 367         unsigned int device_type;
 368
 369         int irq;
 370
 371         unsigned int mmio;
 372         unsigned long addr;
 373         void __iomem *remap_addr;
 374         unsigned int bm_mmio;
 375         unsigned long bmaddr;
 376         void __iomem *remap_bmaddr;
 377
 378         struct pci_dev *pci;
 379         struct snd_card *card;
 380
 381         int pcm_devs;
 382         struct snd_pcm *pcm[6];
 383         struct ichdev ichd[6];
 384
 385         unsigned multi4: 1,
 386                  multi6: 1,
 387                  dra: 1,
 388                  smp20bit: 1;
 389         unsigned in_ac97_init: 1,
 390                  in_sdin_init: 1;
 391         unsigned in_measurement: 1;     /* during ac97 clock measurement */
 392         unsigned fix_nocache: 1;        /* workaround for 440MX */
 393         unsigned buggy_irq: 1;          /* workaround for buggy mobos */
 394         unsigned xbox: 1;               /* workaround for Xbox AC'97 detection */
 395         unsigned buggy_semaphore: 1;    /* workaround for buggy codec semaphore */
 396
 397         int spdif_idx;  /* SPDIF BAR index; *_SPBAR or -1 if use PCMOUT */
 398         unsigned int sdm_saved; /* SDM reg value */
 399
 400         struct snd_ac97_bus *ac97_bus;
 401         struct snd_ac97 *ac97[3];
 402         unsigned int ac97_sdin[3];
 403         unsigned int max_codecs, ncodecs;
 404         unsigned int *codec_bit;
 405         unsigned int codec_isr_bits;
 406         unsigned int codec_ready_bits;
 407
 408         spinlock_t reg_lock;
 409
 410         u32 bdbars_count;
 411         struct snd_dma_buffer bdbars;
 412         u32 int_sta_reg;                /* interrupt status register */
 413         u32 int_sta_mask;               /* interrupt status mask */
 414 };
 415
 416 static struct pci_device_id snd_intel8x0_ids[] = {
 417         { 0x8086, 0x2415, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL }, /* 82801AA */
 418         { 0x8086, 0x2425, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL }, /* 82901AB */
 419         { 0x8086, 0x2445, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL }, /* 82801BA */
 420         { 0x8086, 0x2485, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL }, /* ICH3 */
 421         { 0x8086, 0x24c5, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL_ICH4 }, /* ICH4 */
 422         { 0x8086, 0x24d5, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL_ICH4 }, /* ICH5 */
 423         { 0x8086, 0x25a6, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL_ICH4 }, /* ESB */
 424         { 0x8086, 0x266e, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL_ICH4 }, /* ICH6 */
 425         { 0x8086, 0x27de, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL_ICH4 }, /* ICH7 */
 426         { 0x8086, 0x2698, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL_ICH4 }, /* ESB2 */
 427         { 0x8086, 0x7195, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL }, /* 440MX */
 428         { 0x1039, 0x7012, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_SIS },   /* SI7012 */
 429         { 0x10de, 0x01b1, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_NFORCE },        /* NFORCE */
 430         { 0x10de, 0x003a, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_NFORCE },        /* MCP04 */
 431         { 0x10de, 0x006a, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_NFORCE },        /* NFORCE2 */
 432         { 0x10de, 0x0059, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_NFORCE },        /* CK804 */
 433         { 0x10de, 0x008a, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_NFORCE },        /* CK8 */
 434         { 0x10de, 0x00da, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_NFORCE },        /* NFORCE3 */
 435         { 0x10de, 0x00ea, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_NFORCE },        /* CK8S */
 436         { 0x10de, 0x026b, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_NFORCE },        /* MCP51 */
 437         { 0x1022, 0x746d, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL }, /* AMD8111 */
 438         { 0x1022, 0x7445, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL }, /* AMD768 */
 439         { 0x10b9, 0x5455, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_ALI },   /* Ali5455 */
 440         { 0, }
 441 };
 442
 443 MODULE_DEVICE_TABLE(pci, snd_intel8x0_ids);
 444
 445 /*
 446  *  Lowlevel I/O - busmaster
 447  */
 448
 449 static u8 igetbyte(struct intel8x0 *chip, u32 offset)
 450 {
 451         if (chip->bm_mmio)
 452                 return readb(chip->remap_bmaddr + offset);
 453         else
 454                 return inb(chip->bmaddr + offset);
 455 }
 456
 457 static u16 igetword(struct intel8x0 *chip, u32 offset)
 458 {
 459         if (chip->bm_mmio)
 460                 return readw(chip->remap_bmaddr + offset);
 461         else
 462                 return inw(chip->bmaddr + offset);
 463 }
 464
 465 static u32 igetdword(struct intel8x0 *chip, u32 offset)
 466 {
 467         if (chip->bm_mmio)
 468                 return readl(chip->remap_bmaddr + offset);
 469         else
 470                 return inl(chip->bmaddr + offset);
 471 }
 472
 473 static void iputbyte(struct intel8x0 *chip, u32 offset, u8 val)
 474 {
 475         if (chip->bm_mmio)
 476                 writeb(val, chip->remap_bmaddr + offset);
 477         else
 478                 outb(val, chip->bmaddr + offset);
 479 }
 480
 481 static void iputword(struct intel8x0 *chip, u32 offset, u16 val)
 482 {
 483         if (chip->bm_mmio)
 484                 writew(val, chip->remap_bmaddr + offset);
 485         else
 486                 outw(val, chip->bmaddr + offset);
 487 }
 488
 489 static void iputdword(struct intel8x0 *chip, u32 offset, u32 val)
 490 {
 491         if (chip->bm_mmio)
 492                 writel(val, chip->remap_bmaddr + offset);
 493         else
 494                 outl(val, chip->bmaddr + offset);
 495 }
 496
 497 /*
 498  *  Lowlevel I/O - AC'97 registers
 499  */
 500
 501 static u16 iagetword(struct intel8x0 *chip, u32 offset)
 502 {
 503         if (chip->mmio)
 504                 return readw(chip->remap_addr + offset);
 505         else
 506                 return inw(chip->addr + offset);
 507 }
 508
 509 static void iaputword(struct intel8x0 *chip, u32 offset, u16 val)
 510 {
 511         if (chip->mmio)
 512                 writew(val, chip->remap_addr + offset);
 513         else
 514                 outw(val, chip->addr + offset);
 515 }
 516
 517 /*
 518  *  Basic I/O
 519  */
 520
 521 /*
 522  * access to AC97 codec via normal i/o (for ICH and SIS7012)
 523  */
 524
 525 static int snd_intel8x0_codec_semaphore(struct intel8x0 *chip, unsigned int codec)
 526 {
 527         int time;
 528
 529         if (codec > 2)
 530                 return -EIO;
 531         if (chip->in_sdin_init) {
 532                 /* we don't know the ready bit assignment at the moment */
 533                 /* so we check any */
 534                 codec = chip->codec_isr_bits;
 535         } else {
 536                 codec = chip->codec_bit[chip->ac97_sdin[codec]];
 537         }
 538
 539         /* codec ready ? */
 540         if ((igetdword(chip, ICHREG(GLOB_STA)) & codec) == 0)
 541                 return -EIO;
 542
 543         if (chip->buggy_semaphore)
 544                 return 0; /* just ignore ... */
 545
 546         /* Anyone holding a semaphore for 1 msec should be shot... */
 547         time = 100;
 548         do {
 549                 if (!(igetbyte(chip, ICHREG(ACC_SEMA)) & ICH_CAS))
 550                         return 0;
 551                 udelay(10);
 552         } while (time--);
 553
 554         /* access to some forbidden (non existant) ac97 registers will not
 555          * reset the semaphore. So even if you don't get the semaphore, still
 556          * continue the access. We don't need the semaphore anyway. */
 557         snd_printk(KERN_ERR "codec_semaphore: semaphore is not ready [0x%x][0x%x]\n",
 558                         igetbyte(chip, ICHREG(ACC_SEMA)), igetdword(chip, ICHREG(GLOB_STA)));
 559         iagetword(chip, 0);     /* clear semaphore flag */
 560         /* I don't care about the semaphore */
 561         return -EBUSY;
 562 }
 563
 564 static void snd_intel8x0_codec_write(struct snd_ac97 *ac97,
 565                                      unsigned short reg,
 566                                      unsigned short val)
 567 {
 568         struct intel8x0 *chip = ac97->private_data;
 569
 570         if (snd_intel8x0_codec_semaphore(chip, ac97->num) < 0) {
 571                 if (! chip->in_ac97_init)
 572                         snd_printk(KERN_ERR "codec_write %d: semaphore is not ready for register 0x%x\n", ac97->num, reg);
 573         }
 574         iaputword(chip, reg + ac97->num * 0x80, val);
 575 }
 576
 577 static unsigned short snd_intel8x0_codec_read(struct snd_ac97 *ac97,
 578                                               unsigned short reg)
 579 {
 580         struct intel8x0 *chip = ac97->private_data;
 581         unsigned short res;
 582         unsigned int tmp;
 583
 584         if (snd_intel8x0_codec_semaphore(chip, ac97->num) < 0) {
 585                 if (! chip->in_ac97_init)
 586                         snd_printk(KERN_ERR "codec_read %d: semaphore is not ready for register 0x%x\n", ac97->num, reg);
 587                 res = 0xffff;
 588         } else {
 589                 res = iagetword(chip, reg + ac97->num * 0x80);
 590                 if ((tmp = igetdword(chip, ICHREG(GLOB_STA))) & ICH_RCS) {
 591                         /* reset RCS and preserve other R/WC bits */
 592                         iputdword(chip, ICHREG(GLOB_STA), tmp &
 593                                   ~(chip->codec_ready_bits | ICH_GSCI));
 594                         if (! chip->in_ac97_init)
 595                                 snd_printk(KERN_ERR "codec_read %d: read timeout for register 0x%x\n", ac97->num, reg);
 596                         res = 0xffff;
 597                 }
 598         }
 599         return res;
 600 }
 601
 602 static void __devinit snd_intel8x0_codec_read_test(struct intel8x0 *chip,
 603                                                    unsigned int codec)
 604 {
 605         unsigned int tmp;
 606
 607         if (snd_intel8x0_codec_semaphore(chip, codec) >= 0) {
 608                 iagetword(chip, codec * 0x80);
 609                 if ((tmp = igetdword(chip, ICHREG(GLOB_STA))) & ICH_RCS) {
 610                         /* reset RCS and preserve other R/WC bits */
 611                         iputdword(chip, ICHREG(GLOB_STA), tmp &
 612                                   ~(chip->codec_ready_bits | ICH_GSCI));
 613                 }
 614         }
 615 }
 616
 617 /*
 618  * access to AC97 for Ali5455
 619  */
 620 static int snd_intel8x0_ali_codec_ready(struct intel8x0 *chip, int mask)
 621 {
 622         int count = 0;
 623         for (count = 0; count < 0x7f; count++) {
 624                 int val = igetbyte(chip, ICHREG(ALI_CSPSR));
 625                 if (val & mask)
 626                         return 0;
 627         }
 628         if (! chip->in_ac97_init)
 629                 snd_printd(KERN_WARNING "intel8x0: AC97 codec ready timeout.\n");
 630         return -EBUSY;
 631 }
 632
 633 static int snd_intel8x0_ali_codec_semaphore(struct intel8x0 *chip)
 634 {
 635         int time = 100;
 636         if (chip->buggy_semaphore)
 637                 return 0; /* just ignore ... */
 638         while (time-- && (igetdword(chip, ICHREG(ALI_CAS)) & ALI_CAS_SEM_BUSY))
 639                 udelay(1);
 640         if (! time && ! chip->in_ac97_init)
 641                 snd_printk(KERN_WARNING "ali_codec_semaphore timeout\n");
 642         return snd_intel8x0_ali_codec_ready(chip, ALI_CSPSR_CODEC_READY);
 643 }
 644
 645 static unsigned short snd_intel8x0_ali_codec_read(struct snd_ac97 *ac97, unsigned short reg)
 646 {
 647         struct intel8x0 *chip = ac97->private_data;
 648         unsigned short data = 0xffff;
 649
 650         if (snd_intel8x0_ali_codec_semaphore(chip))
 651                 goto __err;
 652         reg |= ALI_CPR_ADDR_READ;
 653         if (ac97->num)
 654                 reg |= ALI_CPR_ADDR_SECONDARY;
 655         iputword(chip, ICHREG(ALI_CPR_ADDR), reg);
 656         if (snd_intel8x0_ali_codec_ready(chip, ALI_CSPSR_READ_OK))
 657                 goto __err;
 658         data = igetword(chip, ICHREG(ALI_SPR));
 659  __err:
 660         return data;
 661 }
 662
 663 static void snd_intel8x0_ali_codec_write(struct snd_ac97 *ac97, unsigned short reg,
 664                                          unsigned short val)
 665 {
 666         struct intel8x0 *chip = ac97->private_data;
 667
 668         if (snd_intel8x0_ali_codec_semaphore(chip))
 669                 return;
 670         iputword(chip, ICHREG(ALI_CPR), val);
 671         if (ac97->num)
 672                 reg |= ALI_CPR_ADDR_SECONDARY;
 673         iputword(chip, ICHREG(ALI_CPR_ADDR), reg);
 674         snd_intel8x0_ali_codec_ready(chip, ALI_CSPSR_WRITE_OK);
 675 }
 676
 677
 678 /*
 679  * DMA I/O
 680  */
 681 static void snd_intel8x0_setup_periods(struct intel8x0 *chip, struct ichdev *ichdev)
 682 {
 683         int idx;
 684         u32 *bdbar = ichdev->bdbar;
 685         unsigned long port = ichdev->reg_offset;
 686
 687         iputdword(chip, port + ICH_REG_OFF_BDBAR, ichdev->bdbar_addr);
 688         if (ichdev->size == ichdev->fragsize) {
 689                 ichdev->ack_reload = ichdev->ack = 2;
 690                 ichdev->fragsize1 = ichdev->fragsize >> 1;
 691                 for (idx = 0; idx < (ICH_REG_LVI_MASK + 1) * 2; idx += 4) {
 692                         bdbar[idx + 0] = cpu_to_le32(ichdev->physbuf);
 693                         bdbar[idx + 1] = cpu_to_le32(0x80000000 | /* interrupt on completion */
 694                                                      ichdev->fragsize1 >> ichdev->pos_shift);
 695                         bdbar[idx + 2] = cpu_to_le32(ichdev->physbuf + (ichdev->size >> 1));
 696                         bdbar[idx + 3] = cpu_to_le32(0x80000000 | /* interrupt on completion */
 697                                                      ichdev->fragsize1 >> ichdev->pos_shift);
 698                 }
 699                 ichdev->frags = 2;
 700         } else {
 701                 ichdev->ack_reload = ichdev->ack = 1;
 702                 ichdev->fragsize1 = ichdev->fragsize;
 703                 for (idx = 0; idx < (ICH_REG_LVI_MASK + 1) * 2; idx += 2) {
 704                         bdbar[idx + 0] = cpu_to_le32(ichdev->physbuf +
 705                                                      (((idx >> 1) * ichdev->fragsize) %
 706                                                       ichdev->size));
 707                         bdbar[idx + 1] = cpu_to_le32(0x80000000 | /* interrupt on completion */
 708                                                      ichdev->fragsize >> ichdev->pos_shift);
 709 #if 0
 710                         printk("bdbar[%i] = 0x%x [0x%x]\n",
 711                                idx + 0, bdbar[idx + 0], bdbar[idx + 1]);
 712 #endif
 713                 }
 714                 ichdev->frags = ichdev->size / ichdev->fragsize;
 715         }
 716         iputbyte(chip, port + ICH_REG_OFF_LVI, ichdev->lvi = ICH_REG_LVI_MASK);
 717         ichdev->civ = 0;
 718         iputbyte(chip, port + ICH_REG_OFF_CIV, 0);
 719         ichdev->lvi_frag = ICH_REG_LVI_MASK % ichdev->frags;
 720         ichdev->position = 0;
 721 #if 0
 722         printk("lvi_frag = %i, frags = %i, period_size = 0x%x, period_size1 = 0x%x\n",
 723                         ichdev->lvi_frag, ichdev->frags, ichdev->fragsize, ichdev->fragsize1);
 724 #endif
 725         /* clear interrupts */
 726         iputbyte(chip, port + ichdev->roff_sr, ICH_FIFOE | ICH_BCIS | ICH_LVBCI);
 727 }
 728
 729 #ifdef __i386__
 730 /*
 731  * Intel 82443MX running a 100MHz processor system bus has a hardware bug,
 732  * which aborts PCI busmaster for audio transfer.  A workaround is to set
 733  * the pages as non-cached.  For details, see the errata in
 734  *      http://www.intel.com/design/chipsets/specupdt/245051.htm
 735  */
 736 static void fill_nocache(void *buf, int size, int nocache)
 737 {
 738         size = (size + PAGE_SIZE - 1) >> PAGE_SHIFT;
 739         change_page_attr(virt_to_page(buf), size, nocache ? PAGE_KERNEL_NOCACHE : PAGE_KERNEL);
 740         global_flush_tlb();
 741 }
 742 #else
 743 #define fill_nocache(buf,size,nocache)
 744 #endif
 745
 746 /*
 747  *  Interrupt handler
 748  */
 749
 750 static inline void snd_intel8x0_update(struct intel8x0 *chip, struct ichdev *ichdev)
 751 {
 752         unsigned long port = ichdev->reg_offset;
 753         int status, civ, i, step;
 754         int ack = 0;
 755
 756         spin_lock(&chip->reg_lock);
 757         status = igetbyte(chip, port + ichdev->roff_sr);
 758         civ = igetbyte(chip, port + ICH_REG_OFF_CIV);
 759         if (!(status & ICH_BCIS)) {
 760                 step = 0;
 761         } else if (civ == ichdev->civ) {
 762                 // snd_printd("civ same %d\n", civ);
 763                 step = 1;
 764                 ichdev->civ++;
 765                 ichdev->civ &= ICH_REG_LVI_MASK;
 766         } else {
 767                 step = civ - ichdev->civ;
 768                 if (step < 0)
 769                         step += ICH_REG_LVI_MASK + 1;
 770                 // if (step != 1)
 771                 //      snd_printd("step = %d, %d -> %d\n", step, ichdev->civ, civ);
 772                 ichdev->civ = civ;
 773         }
 774
 775         ichdev->position += step * ichdev->fragsize1;
 776         if (! chip->in_measurement)
 777                 ichdev->position %= ichdev->size;
 778         ichdev->lvi += step;
 779         ichdev->lvi &= ICH_REG_LVI_MASK;
 780         iputbyte(chip, port + ICH_REG_OFF_LVI, ichdev->lvi);
 781         for (i = 0; i < step; i++) {
 782                 ichdev->lvi_frag++;
 783                 ichdev->lvi_frag %= ichdev->frags;
 784                 ichdev->bdbar[ichdev->lvi * 2] = cpu_to_le32(ichdev->physbuf + ichdev->lvi_frag * ichdev->fragsize1);
 785 #if 0
 786         printk("new: bdbar[%i] = 0x%x [0x%x], prefetch = %i, all = 0x%x, 0x%x\n",
 787                ichdev->lvi * 2, ichdev->bdbar[ichdev->lvi * 2],
 788                ichdev->bdbar[ichdev->lvi * 2 + 1], inb(ICH_REG_OFF_PIV + port),
 789                inl(port + 4), inb(port + ICH_REG_OFF_CR));
 790 #endif
 791                 if (--ichdev->ack == 0) {
 792                         ichdev->ack = ichdev->ack_reload;
 793                         ack = 1;
 794                 }
 795         }
 796         spin_unlock(&chip->reg_lock);
 797         if (ack && ichdev->substream) {
 798                 snd_pcm_period_elapsed(ichdev->substream);
 799         }
 800         iputbyte(chip, port + ichdev->roff_sr,
 801                  status & (ICH_FIFOE | ICH_BCIS | ICH_LVBCI));
 802 }
 803
 804 static irqreturn_t snd_intel8x0_interrupt(int irq, void *dev_id)
 805 {
 806         struct intel8x0 *chip = dev_id;
 807         struct ichdev *ichdev;
 808         unsigned int status;
 809         unsigned int i;
 810
 811         status = igetdword(chip, chip->int_sta_reg);
 812         if (status == 0xffffffff)       /* we are not yet resumed */
 813                 return IRQ_NONE;
 814
 815         if ((status & chip->int_sta_mask) == 0) {
 816                 if (status) {
 817                         /* ack */
 818                         iputdword(chip, chip->int_sta_reg, status);
 819                         if (! chip->buggy_irq)
 820                                 status = 0;
 821                 }
 822                 return IRQ_RETVAL(status);
 823         }
 824
 825         for (i = 0; i < chip->bdbars_count; i++) {
 826                 ichdev = &chip->ichd[i];
 827                 if (status & ichdev->int_sta_mask)
 828                         snd_intel8x0_update(chip, ichdev);
 829         }
 830
 831         /* ack them */
 832         iputdword(chip, chip->int_sta_reg, status & chip->int_sta_mask);
 833
 834         return IRQ_HANDLED;
 835 }
 836
 837 /*
 838  *  PCM part
 839  */
 840
 841 static int snd_intel8x0_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
 842 {
 843         struct intel8x0 *chip = snd_pcm_substream_chip(substream);
 844         struct ichdev *ichdev = get_ichdev(substream);
 845         unsigned char val = 0;
 846         unsigned long port = ichdev->reg_offset;
 847
 848         switch (cmd) {
 849         case SNDRV_PCM_TRIGGER_RESUME:
 850                 ichdev->suspended = 0;
 851                 /* fallthru */
 852         case SNDRV_PCM_TRIGGER_START:
 853                 val = ICH_IOCE | ICH_STARTBM;
 854                 break;
 855         case SNDRV_PCM_TRIGGER_SUSPEND:
 856                 ichdev->suspended = 1;
 857                 /* fallthru */
 858         case SNDRV_PCM_TRIGGER_STOP:
 859                 val = 0;
 860                 break;
 861         case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
 862                 val = ICH_IOCE;
 863                 break;
 864         case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
 865                 val = ICH_IOCE | ICH_STARTBM;
 866                 break;
 867         default:
 868                 return -EINVAL;
 869         }
 870         iputbyte(chip, port + ICH_REG_OFF_CR, val);
 871         if (cmd == SNDRV_PCM_TRIGGER_STOP) {
 872                 /* wait until DMA stopped */
 873                 while (!(igetbyte(chip, port + ichdev->roff_sr) & ICH_DCH)) ;
 874                 /* reset whole DMA things */
 875                 iputbyte(chip, port + ICH_REG_OFF_CR, ICH_RESETREGS);
 876         }
 877         return 0;
 878 }
 879
 880 static int snd_intel8x0_ali_trigger(struct snd_pcm_substream *substream, int cmd)
 881 {
 882         struct intel8x0 *chip = snd_pcm_substream_chip(substream);
 883         struct ichdev *ichdev = get_ichdev(substream);
 884         unsigned long port = ichdev->reg_offset;
 885         static int fiforeg[] = {
 886                 ICHREG(ALI_FIFOCR1), ICHREG(ALI_FIFOCR2), ICHREG(ALI_FIFOCR3)
 887         };
 888         unsigned int val, fifo;
 889
 890         val = igetdword(chip, ICHREG(ALI_DMACR));
 891         switch (cmd) {
 892         case SNDRV_PCM_TRIGGER_RESUME:
 893                 ichdev->suspended = 0;
 894                 /* fallthru */
 895         case SNDRV_PCM_TRIGGER_START:
 896         case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
 897                 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
 898                         /* clear FIFO for synchronization of channels */
 899                         fifo = igetdword(chip, fiforeg[ichdev->ali_slot / 4]);
 900                         fifo &= ~(0xff << (ichdev->ali_slot % 4));
 901                         fifo |= 0x83 << (ichdev->ali_slot % 4);
 902                         iputdword(chip, fiforeg[ichdev->ali_slot / 4], fifo);
 903                 }
 904                 iputbyte(chip, port + ICH_REG_OFF_CR, ICH_IOCE);
 905                 val &= ~(1 << (ichdev->ali_slot + 16)); /* clear PAUSE flag */
 906                 /* start DMA */
 907                 iputdword(chip, ICHREG(ALI_DMACR), val | (1 << ichdev->ali_slot));
 908                 break;
 909         case SNDRV_PCM_TRIGGER_SUSPEND:
 910                 ichdev->suspended = 1;
 911                 /* fallthru */
 912         case SNDRV_PCM_TRIGGER_STOP:
 913         case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
 914                 /* pause */
 915                 iputdword(chip, ICHREG(ALI_DMACR), val | (1 << (ichdev->ali_slot + 16)));
 916                 iputbyte(chip, port + ICH_REG_OFF_CR, 0);
 917                 while (igetbyte(chip, port + ICH_REG_OFF_CR))
 918                         ;
 919                 if (cmd == SNDRV_PCM_TRIGGER_PAUSE_PUSH)
 920                         break;
 921                 /* reset whole DMA things */
 922                 iputbyte(chip, port + ICH_REG_OFF_CR, ICH_RESETREGS);
 923                 /* clear interrupts */
 924                 iputbyte(chip, port + ICH_REG_OFF_SR,
 925                          igetbyte(chip, port + ICH_REG_OFF_SR) | 0x1e);
 926                 iputdword(chip, ICHREG(ALI_INTERRUPTSR),
 927                           igetdword(chip, ICHREG(ALI_INTERRUPTSR)) & ichdev->int_sta_mask);
 928                 break;
 929         default:
 930                 return -EINVAL;
 931         }
 932         return 0;
 933 }
 934
 935 static int snd_intel8x0_hw_params(struct snd_pcm_substream *substream,
 936                                   struct snd_pcm_hw_params *hw_params)
 937 {
 938         struct intel8x0 *chip = snd_pcm_substream_chip(substream);
 939         struct ichdev *ichdev = get_ichdev(substream);
 940         struct snd_pcm_runtime *runtime = substream->runtime;
 941         int dbl = params_rate(hw_params) > 48000;
 942         int err;
 943
 944         if (chip->fix_nocache && ichdev->page_attr_changed) {
 945                 fill_nocache(runtime->dma_area, runtime->dma_bytes, 0); /* clear */
 946                 ichdev->page_attr_changed = 0;
 947         }
 948         err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
 949         if (err < 0)
 950                 return err;
 951         if (chip->fix_nocache) {
 952                 if (runtime->dma_area && ! ichdev->page_attr_changed) {
 953                         fill_nocache(runtime->dma_area, runtime->dma_bytes, 1);
 954                         ichdev->page_attr_changed = 1;
 955                 }
 956         }
 957         if (ichdev->pcm_open_flag) {
 958                 snd_ac97_pcm_close(ichdev->pcm);
 959                 ichdev->pcm_open_flag = 0;
 960         }
 961         err = snd_ac97_pcm_open(ichdev->pcm, params_rate(hw_params),
 962                                 params_channels(hw_params),
 963                                 ichdev->pcm->r[dbl].slots);
 964         if (err >= 0) {
 965                 ichdev->pcm_open_flag = 1;
 966                 /* Force SPDIF setting */
 967                 if (ichdev->ichd == ICHD_PCMOUT && chip->spdif_idx < 0)
 968                         snd_ac97_set_rate(ichdev->pcm->r[0].codec[0], AC97_SPDIF,
 969                                           params_rate(hw_params));
 970         }
 971         return err;
 972 }
 973
 974 static int snd_intel8x0_hw_free(struct snd_pcm_substream *substream)
 975 {
 976         struct intel8x0 *chip = snd_pcm_substream_chip(substream);
 977         struct ichdev *ichdev = get_ichdev(substream);
 978
 979         if (ichdev->pcm_open_flag) {
 980                 snd_ac97_pcm_close(ichdev->pcm);
 981                 ichdev->pcm_open_flag = 0;
 982         }
 983         if (chip->fix_nocache && ichdev->page_attr_changed) {
 984                 fill_nocache(substream->runtime->dma_area, substream->runtime->dma_bytes, 0);
 985                 ichdev->page_attr_changed = 0;
 986         }
 987         return snd_pcm_lib_free_pages(substream);
 988 }
 989
 990 static void snd_intel8x0_setup_pcm_out(struct intel8x0 *chip,
 991                                        struct snd_pcm_runtime *runtime)
 992 {
 993         unsigned int cnt;
 994         int dbl = runtime->rate > 48000;
 995
 996         spin_lock_irq(&chip->reg_lock);
 997         switch (chip->device_type) {
 998         case DEVICE_ALI:
 999                 cnt = igetdword(chip, ICHREG(ALI_SCR));
1000                 cnt &= ~ICH_ALI_SC_PCM_246_MASK;
1001                 if (runtime->channels == 4 || dbl)
1002                         cnt |= ICH_ALI_SC_PCM_4;
1003                 else if (runtime->channels == 6)
1004                         cnt |= ICH_ALI_SC_PCM_6;
1005                 iputdword(chip, ICHREG(ALI_SCR), cnt);
1006                 break;
1007         case DEVICE_SIS:
1008                 cnt = igetdword(chip, ICHREG(GLOB_CNT));
1009                 cnt &= ~ICH_SIS_PCM_246_MASK;
1010                 if (runtime->channels == 4 || dbl)
1011                         cnt |= ICH_SIS_PCM_4;
1012                 else if (runtime->channels == 6)
1013                         cnt |= ICH_SIS_PCM_6;
1014                 iputdword(chip, ICHREG(GLOB_CNT), cnt);
1015                 break;
1016         default:
1017                 cnt = igetdword(chip, ICHREG(GLOB_CNT));
1018                 cnt &= ~(ICH_PCM_246_MASK | ICH_PCM_20BIT);
1019                 if (runtime->channels == 4 || dbl)
1020                         cnt |= ICH_PCM_4;
1021                 else if (runtime->channels == 6)
1022                         cnt |= ICH_PCM_6;
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 = 100;
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                     ptr1 == igetword(chip, ichdev->reg_offset + ichdev->roff_picb))
1080                         break;
1081         } while (timeout--);
1082         ptr1 <<= ichdev->pos_shift;
1083         ptr = ichdev->fragsize1 - ptr1;
1084         ptr += position;
1085         spin_unlock(&chip->reg_lock);
1086         if (ptr >= ichdev->size)
1087                 return 0;
1088         return bytes_to_frames(substream->runtime, ptr);
1089 }
1090
1091 static struct snd_pcm_hardware snd_intel8x0_stream =
1092 {
1093         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1094                                  SNDRV_PCM_INFO_BLOCK_TRANSFER |
1095                                  SNDRV_PCM_INFO_MMAP_VALID |
1096                                  SNDRV_PCM_INFO_PAUSE |
1097                                  SNDRV_PCM_INFO_RESUME),
1098         .formats =              SNDRV_PCM_FMTBIT_S16_LE,
1099         .rates =                SNDRV_PCM_RATE_48000,
1100         .rate_min =             48000,
1101         .rate_max =             48000,
1102         .channels_min =         2,
1103         .channels_max =         2,
1104         .buffer_bytes_max =     128 * 1024,
1105         .period_bytes_min =     32,
1106         .period_bytes_max =     128 * 1024,
1107         .periods_min =          1,
1108         .periods_max =          1024,
1109         .fifo_size =            0,
1110 };
1111
1112 static unsigned int channels4[] = {
1113         2, 4,
1114 };
1115
1116 static struct snd_pcm_hw_constraint_list hw_constraints_channels4 = {
1117         .count = ARRAY_SIZE(channels4),
1118         .list = channels4,
1119         .mask = 0,
1120 };
1121
1122 static unsigned int channels6[] = {
1123         2, 4, 6,
1124 };
1125
1126 static struct snd_pcm_hw_constraint_list hw_constraints_channels6 = {
1127         .count = ARRAY_SIZE(channels6),
1128         .list = channels6,
1129         .mask = 0,
1130 };
1131
1132 static int snd_intel8x0_pcm_open(struct snd_pcm_substream *substream, struct ichdev *ichdev)
1133 {
1134         struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1135         struct snd_pcm_runtime *runtime = substream->runtime;
1136         int err;
1137
1138         ichdev->substream = substream;
1139         runtime->hw = snd_intel8x0_stream;
1140         runtime->hw.rates = ichdev->pcm->rates;
1141         snd_pcm_limit_hw_rates(runtime);
1142         if (chip->device_type == DEVICE_SIS) {
1143                 runtime->hw.buffer_bytes_max = 64*1024;
1144                 runtime->hw.period_bytes_max = 64*1024;
1145         }
1146         if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
1147                 return err;
1148         runtime->private_data = ichdev;
1149         return 0;
1150 }
1151
1152 static int snd_intel8x0_playback_open(struct snd_pcm_substream *substream)
1153 {
1154         struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1155         struct snd_pcm_runtime *runtime = substream->runtime;
1156         int err;
1157
1158         err = snd_intel8x0_pcm_open(substream, &chip->ichd[ICHD_PCMOUT]);
1159         if (err < 0)
1160                 return err;
1161
1162         if (chip->multi6) {
1163                 runtime->hw.channels_max = 6;
1164                 snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
1165                                            &hw_constraints_channels6);
1166         } else if (chip->multi4) {
1167                 runtime->hw.channels_max = 4;
1168                 snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
1169                                            &hw_constraints_channels4);
1170         }
1171         if (chip->dra) {
1172                 snd_ac97_pcm_double_rate_rules(runtime);
1173         }
1174         if (chip->smp20bit) {
1175                 runtime->hw.formats |= SNDRV_PCM_FMTBIT_S32_LE;
1176                 snd_pcm_hw_constraint_msbits(runtime, 0, 32, 20);
1177         }
1178         return 0;
1179 }
1180
1181 static int snd_intel8x0_playback_close(struct snd_pcm_substream *substream)
1182 {
1183         struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1184
1185         chip->ichd[ICHD_PCMOUT].substream = NULL;
1186         return 0;
1187 }
1188
1189 static int snd_intel8x0_capture_open(struct snd_pcm_substream *substream)
1190 {
1191         struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1192
1193         return snd_intel8x0_pcm_open(substream, &chip->ichd[ICHD_PCMIN]);
1194 }
1195
1196 static int snd_intel8x0_capture_close(struct snd_pcm_substream *substream)
1197 {
1198         struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1199
1200         chip->ichd[ICHD_PCMIN].substream = NULL;
1201         return 0;
1202 }
1203
1204 static int snd_intel8x0_mic_open(struct snd_pcm_substream *substream)
1205 {
1206         struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1207
1208         return snd_intel8x0_pcm_open(substream, &chip->ichd[ICHD_MIC]);
1209 }
1210
1211 static int snd_intel8x0_mic_close(struct snd_pcm_substream *substream)
1212 {
1213         struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1214
1215         chip->ichd[ICHD_MIC].substream = NULL;
1216         return 0;
1217 }
1218
1219 static int snd_intel8x0_mic2_open(struct snd_pcm_substream *substream)
1220 {
1221         struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1222
1223         return snd_intel8x0_pcm_open(substream, &chip->ichd[ICHD_MIC2]);
1224 }
1225
1226 static int snd_intel8x0_mic2_close(struct snd_pcm_substream *substream)
1227 {
1228         struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1229
1230         chip->ichd[ICHD_MIC2].substream = NULL;
1231         return 0;
1232 }
1233
1234 static int snd_intel8x0_capture2_open(struct snd_pcm_substream *substream)
1235 {
1236         struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1237
1238         return snd_intel8x0_pcm_open(substream, &chip->ichd[ICHD_PCM2IN]);
1239 }
1240
1241 static int snd_intel8x0_capture2_close(struct snd_pcm_substream *substream)
1242 {
1243         struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1244
1245         chip->ichd[ICHD_PCM2IN].substream = NULL;
1246         return 0;
1247 }
1248
1249 static int snd_intel8x0_spdif_open(struct snd_pcm_substream *substream)
1250 {
1251         struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1252         int idx = chip->device_type == DEVICE_NFORCE ? NVD_SPBAR : ICHD_SPBAR;
1253
1254         return snd_intel8x0_pcm_open(substream, &chip->ichd[idx]);
1255 }
1256
1257 static int snd_intel8x0_spdif_close(struct snd_pcm_substream *substream)
1258 {
1259         struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1260         int idx = chip->device_type == DEVICE_NFORCE ? NVD_SPBAR : ICHD_SPBAR;
1261
1262         chip->ichd[idx].substream = NULL;
1263         return 0;
1264 }
1265
1266 static int snd_intel8x0_ali_ac97spdifout_open(struct snd_pcm_substream *substream)
1267 {
1268         struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1269         unsigned int val;
1270
1271         spin_lock_irq(&chip->reg_lock);
1272         val = igetdword(chip, ICHREG(ALI_INTERFACECR));
1273         val |= ICH_ALI_IF_AC97SP;
1274         iputdword(chip, ICHREG(ALI_INTERFACECR), val);
1275         /* also needs to set ALI_SC_CODEC_SPDF correctly */
1276         spin_unlock_irq(&chip->reg_lock);
1277
1278         return snd_intel8x0_pcm_open(substream, &chip->ichd[ALID_AC97SPDIFOUT]);
1279 }
1280
1281 static int snd_intel8x0_ali_ac97spdifout_close(struct snd_pcm_substream *substream)
1282 {
1283         struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1284         unsigned int val;
1285
1286         chip->ichd[ALID_AC97SPDIFOUT].substream = NULL;
1287         spin_lock_irq(&chip->reg_lock);
1288         val = igetdword(chip, ICHREG(ALI_INTERFACECR));
1289         val &= ~ICH_ALI_IF_AC97SP;
1290         iputdword(chip, ICHREG(ALI_INTERFACECR), val);
1291         spin_unlock_irq(&chip->reg_lock);
1292
1293         return 0;
1294 }
1295
1296 #if 0 // NYI
1297 static int snd_intel8x0_ali_spdifin_open(struct snd_pcm_substream *substream)
1298 {
1299         struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1300
1301         return snd_intel8x0_pcm_open(substream, &chip->ichd[ALID_SPDIFIN]);
1302 }
1303
1304 static int snd_intel8x0_ali_spdifin_close(struct snd_pcm_substream *substream)
1305 {
1306         struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1307
1308         chip->ichd[ALID_SPDIFIN].substream = NULL;
1309         return 0;
1310 }
1311
1312 static int snd_intel8x0_ali_spdifout_open(struct snd_pcm_substream *substream)
1313 {
1314         struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1315
1316         return snd_intel8x0_pcm_open(substream, &chip->ichd[ALID_SPDIFOUT]);
1317 }
1318
1319 static int snd_intel8x0_ali_spdifout_close(struct snd_pcm_substream *substream)
1320 {
1321         struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1322
1323         chip->ichd[ALID_SPDIFOUT].substream = NULL;
1324         return 0;
1325 }
1326 #endif
1327
1328 static struct snd_pcm_ops snd_intel8x0_playback_ops = {
1329         .open =         snd_intel8x0_playback_open,
1330         .close =        snd_intel8x0_playback_close,
1331         .ioctl =        snd_pcm_lib_ioctl,
1332         .hw_params =    snd_intel8x0_hw_params,
1333         .hw_free =      snd_intel8x0_hw_free,
1334         .prepare =      snd_intel8x0_pcm_prepare,
1335         .trigger =      snd_intel8x0_pcm_trigger,
1336         .pointer =      snd_intel8x0_pcm_pointer,
1337 };
1338
1339 static struct snd_pcm_ops snd_intel8x0_capture_ops = {
1340         .open =         snd_intel8x0_capture_open,
1341         .close =        snd_intel8x0_capture_close,
1342         .ioctl =        snd_pcm_lib_ioctl,
1343         .hw_params =    snd_intel8x0_hw_params,
1344         .hw_free =      snd_intel8x0_hw_free,
1345         .prepare =      snd_intel8x0_pcm_prepare,
1346         .trigger =      snd_intel8x0_pcm_trigger,
1347         .pointer =      snd_intel8x0_pcm_pointer,
1348 };
1349
1350 static struct snd_pcm_ops snd_intel8x0_capture_mic_ops = {
1351         .open =         snd_intel8x0_mic_open,
1352         .close =        snd_intel8x0_mic_close,
1353         .ioctl =        snd_pcm_lib_ioctl,
1354         .hw_params =    snd_intel8x0_hw_params,
1355         .hw_free =      snd_intel8x0_hw_free,
1356         .prepare =      snd_intel8x0_pcm_prepare,
1357         .trigger =      snd_intel8x0_pcm_trigger,
1358         .pointer =      snd_intel8x0_pcm_pointer,
1359 };
1360
1361 static struct snd_pcm_ops snd_intel8x0_capture_mic2_ops = {
1362         .open =         snd_intel8x0_mic2_open,
1363         .close =        snd_intel8x0_mic2_close,
1364         .ioctl =        snd_pcm_lib_ioctl,
1365         .hw_params =    snd_intel8x0_hw_params,
1366         .hw_free =      snd_intel8x0_hw_free,
1367         .prepare =      snd_intel8x0_pcm_prepare,
1368         .trigger =      snd_intel8x0_pcm_trigger,
1369         .pointer =      snd_intel8x0_pcm_pointer,
1370 };
1371
1372 static struct snd_pcm_ops snd_intel8x0_capture2_ops = {
1373         .open =         snd_intel8x0_capture2_open,
1374         .close =        snd_intel8x0_capture2_close,
1375         .ioctl =        snd_pcm_lib_ioctl,
1376         .hw_params =    snd_intel8x0_hw_params,
1377         .hw_free =      snd_intel8x0_hw_free,
1378         .prepare =      snd_intel8x0_pcm_prepare,
1379         .trigger =      snd_intel8x0_pcm_trigger,
1380         .pointer =      snd_intel8x0_pcm_pointer,
1381 };
1382
1383 static struct snd_pcm_ops snd_intel8x0_spdif_ops = {
1384         .open =         snd_intel8x0_spdif_open,
1385         .close =        snd_intel8x0_spdif_close,
1386         .ioctl =        snd_pcm_lib_ioctl,
1387         .hw_params =    snd_intel8x0_hw_params,
1388         .hw_free =      snd_intel8x0_hw_free,
1389         .prepare =      snd_intel8x0_pcm_prepare,
1390         .trigger =      snd_intel8x0_pcm_trigger,
1391         .pointer =      snd_intel8x0_pcm_pointer,
1392 };
1393
1394 static struct snd_pcm_ops snd_intel8x0_ali_playback_ops = {
1395         .open =         snd_intel8x0_playback_open,
1396         .close =        snd_intel8x0_playback_close,
1397         .ioctl =        snd_pcm_lib_ioctl,
1398         .hw_params =    snd_intel8x0_hw_params,
1399         .hw_free =      snd_intel8x0_hw_free,
1400         .prepare =      snd_intel8x0_pcm_prepare,
1401         .trigger =      snd_intel8x0_ali_trigger,
1402         .pointer =      snd_intel8x0_pcm_pointer,
1403 };
1404
1405 static struct snd_pcm_ops snd_intel8x0_ali_capture_ops = {
1406         .open =         snd_intel8x0_capture_open,
1407         .close =        snd_intel8x0_capture_close,
1408         .ioctl =        snd_pcm_lib_ioctl,
1409         .hw_params =    snd_intel8x0_hw_params,
1410         .hw_free =      snd_intel8x0_hw_free,
1411         .prepare =      snd_intel8x0_pcm_prepare,
1412         .trigger =      snd_intel8x0_ali_trigger,
1413         .pointer =      snd_intel8x0_pcm_pointer,
1414 };
1415
1416 static struct snd_pcm_ops snd_intel8x0_ali_capture_mic_ops = {
1417         .open =         snd_intel8x0_mic_open,
1418         .close =        snd_intel8x0_mic_close,
1419         .ioctl =        snd_pcm_lib_ioctl,
1420         .hw_params =    snd_intel8x0_hw_params,
1421         .hw_free =      snd_intel8x0_hw_free,
1422         .prepare =      snd_intel8x0_pcm_prepare,
1423         .trigger =      snd_intel8x0_ali_trigger,
1424         .pointer =      snd_intel8x0_pcm_pointer,
1425 };
1426
1427 static struct snd_pcm_ops snd_intel8x0_ali_ac97spdifout_ops = {
1428         .open =         snd_intel8x0_ali_ac97spdifout_open,
1429         .close =        snd_intel8x0_ali_ac97spdifout_close,
1430         .ioctl =        snd_pcm_lib_ioctl,
1431         .hw_params =    snd_intel8x0_hw_params,
1432         .hw_free =      snd_intel8x0_hw_free,
1433         .prepare =      snd_intel8x0_pcm_prepare,
1434         .trigger =      snd_intel8x0_ali_trigger,
1435         .pointer =      snd_intel8x0_pcm_pointer,
1436 };
1437
1438 #if 0 // NYI
1439 static struct snd_pcm_ops snd_intel8x0_ali_spdifin_ops = {
1440         .open =         snd_intel8x0_ali_spdifin_open,
1441         .close =        snd_intel8x0_ali_spdifin_close,
1442         .ioctl =        snd_pcm_lib_ioctl,
1443         .hw_params =    snd_intel8x0_hw_params,
1444         .hw_free =      snd_intel8x0_hw_free,
1445         .prepare =      snd_intel8x0_pcm_prepare,
1446         .trigger =      snd_intel8x0_pcm_trigger,
1447         .pointer =      snd_intel8x0_pcm_pointer,
1448 };
1449
1450 static struct snd_pcm_ops snd_intel8x0_ali_spdifout_ops = {
1451         .open =         snd_intel8x0_ali_spdifout_open,
1452         .close =        snd_intel8x0_ali_spdifout_close,
1453         .ioctl =        snd_pcm_lib_ioctl,
1454         .hw_params =    snd_intel8x0_hw_params,
1455         .hw_free =      snd_intel8x0_hw_free,
1456         .prepare =      snd_intel8x0_pcm_prepare,
1457         .trigger =      snd_intel8x0_pcm_trigger,
1458         .pointer =      snd_intel8x0_pcm_pointer,
1459 };
1460 #endif // NYI
1461
1462 struct ich_pcm_table {
1463         char *suffix;
1464         struct snd_pcm_ops *playback_ops;
1465         struct snd_pcm_ops *capture_ops;
1466         size_t prealloc_size;
1467         size_t prealloc_max_size;
1468         int ac97_idx;
1469 };
1470
1471 static int __devinit snd_intel8x0_pcm1(struct intel8x0 *chip, int device,
1472                                        struct ich_pcm_table *rec)
1473 {
1474         struct snd_pcm *pcm;
1475         int err;
1476         char name[32];
1477
1478         if (rec->suffix)
1479                 sprintf(name, "Intel ICH - %s", rec->suffix);
1480         else
1481                 strcpy(name, "Intel ICH");
1482         err = snd_pcm_new(chip->card, name, device,
1483                           rec->playback_ops ? 1 : 0,
1484                           rec->capture_ops ? 1 : 0, &pcm);
1485         if (err < 0)
1486                 return err;
1487
1488         if (rec->playback_ops)
1489                 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, rec->playback_ops);
1490         if (rec->capture_ops)
1491                 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, rec->capture_ops);
1492
1493         pcm->private_data = chip;
1494         pcm->info_flags = 0;
1495         if (rec->suffix)
1496                 sprintf(pcm->name, "%s - %s", chip->card->shortname, rec->suffix);
1497         else
1498                 strcpy(pcm->name, chip->card->shortname);
1499         chip->pcm[device] = pcm;
1500
1501         snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
1502                                               snd_dma_pci_data(chip->pci),
1503                                               rec->prealloc_size, rec->prealloc_max_size);
1504
1505         return 0;
1506 }
1507
1508 static struct ich_pcm_table intel_pcms[] __devinitdata = {
1509         {
1510                 .playback_ops = &snd_intel8x0_playback_ops,
1511                 .capture_ops = &snd_intel8x0_capture_ops,
1512                 .prealloc_size = 64 * 1024,
1513                 .prealloc_max_size = 128 * 1024,
1514         },
1515         {
1516                 .suffix = "MIC ADC",
1517                 .capture_ops = &snd_intel8x0_capture_mic_ops,
1518                 .prealloc_size = 0,
1519                 .prealloc_max_size = 128 * 1024,
1520                 .ac97_idx = ICHD_MIC,
1521         },
1522         {
1523                 .suffix = "MIC2 ADC",
1524                 .capture_ops = &snd_intel8x0_capture_mic2_ops,
1525                 .prealloc_size = 0,
1526                 .prealloc_max_size = 128 * 1024,
1527                 .ac97_idx = ICHD_MIC2,
1528         },
1529         {
1530                 .suffix = "ADC2",
1531                 .capture_ops = &snd_intel8x0_capture2_ops,
1532                 .prealloc_size = 0,
1533                 .prealloc_max_size = 128 * 1024,
1534                 .ac97_idx = ICHD_PCM2IN,
1535         },
1536         {
1537                 .suffix = "IEC958",
1538                 .playback_ops = &snd_intel8x0_spdif_ops,
1539                 .prealloc_size = 64 * 1024,
1540                 .prealloc_max_size = 128 * 1024,
1541                 .ac97_idx = ICHD_SPBAR,
1542         },
1543 };
1544
1545 static struct ich_pcm_table nforce_pcms[] __devinitdata = {
1546         {
1547                 .playback_ops = &snd_intel8x0_playback_ops,
1548                 .capture_ops = &snd_intel8x0_capture_ops,
1549                 .prealloc_size = 64 * 1024,
1550                 .prealloc_max_size = 128 * 1024,
1551         },
1552         {
1553                 .suffix = "MIC ADC",
1554                 .capture_ops = &snd_intel8x0_capture_mic_ops,
1555                 .prealloc_size = 0,
1556                 .prealloc_max_size = 128 * 1024,
1557                 .ac97_idx = NVD_MIC,
1558         },
1559         {
1560                 .suffix = "IEC958",
1561                 .playback_ops = &snd_intel8x0_spdif_ops,
1562                 .prealloc_size = 64 * 1024,
1563                 .prealloc_max_size = 128 * 1024,
1564                 .ac97_idx = NVD_SPBAR,
1565         },
1566 };
1567
1568 static struct ich_pcm_table ali_pcms[] __devinitdata = {
1569         {
1570                 .playback_ops = &snd_intel8x0_ali_playback_ops,
1571                 .capture_ops = &snd_intel8x0_ali_capture_ops,
1572                 .prealloc_size = 64 * 1024,
1573                 .prealloc_max_size = 128 * 1024,
1574         },
1575         {
1576                 .suffix = "MIC ADC",
1577                 .capture_ops = &snd_intel8x0_ali_capture_mic_ops,
1578                 .prealloc_size = 0,
1579                 .prealloc_max_size = 128 * 1024,
1580                 .ac97_idx = ALID_MIC,
1581         },
1582         {
1583                 .suffix = "IEC958",
1584                 .playback_ops = &snd_intel8x0_ali_ac97spdifout_ops,
1585                 /* .capture_ops = &snd_intel8x0_ali_spdifin_ops, */
1586                 .prealloc_size = 64 * 1024,
1587                 .prealloc_max_size = 128 * 1024,
1588                 .ac97_idx = ALID_AC97SPDIFOUT,
1589         },
1590 #if 0 // NYI
1591         {
1592                 .suffix = "HW IEC958",
1593                 .playback_ops = &snd_intel8x0_ali_spdifout_ops,
1594                 .prealloc_size = 64 * 1024,
1595                 .prealloc_max_size = 128 * 1024,
1596         },
1597 #endif
1598 };
1599
1600 static int __devinit snd_intel8x0_pcm(struct intel8x0 *chip)
1601 {
1602         int i, tblsize, device, err;
1603         struct ich_pcm_table *tbl, *rec;
1604
1605         switch (chip->device_type) {
1606         case DEVICE_INTEL_ICH4:
1607                 tbl = intel_pcms;
1608                 tblsize = ARRAY_SIZE(intel_pcms);
1609                 break;
1610         case DEVICE_NFORCE:
1611                 tbl = nforce_pcms;
1612                 tblsize = ARRAY_SIZE(nforce_pcms);
1613                 break;
1614         case DEVICE_ALI:
1615                 tbl = ali_pcms;
1616                 tblsize = ARRAY_SIZE(ali_pcms);
1617                 break;
1618         default:
1619                 tbl = intel_pcms;
1620                 tblsize = 2;
1621                 break;
1622         }
1623
1624         device = 0;
1625         for (i = 0; i < tblsize; i++) {
1626                 rec = tbl + i;
1627                 if (i > 0 && rec->ac97_idx) {
1628                         /* activate PCM only when associated AC'97 codec */
1629                         if (! chip->ichd[rec->ac97_idx].pcm)
1630                                 continue;
1631                 }
1632                 err = snd_intel8x0_pcm1(chip, device, rec);
1633                 if (err < 0)
1634                         return err;
1635                 device++;
1636         }
1637
1638         chip->pcm_devs = device;
1639         return 0;
1640 }
1641
1642
1643 /*
1644  *  Mixer part
1645  */
1646
1647 static void snd_intel8x0_mixer_free_ac97_bus(struct snd_ac97_bus *bus)
1648 {
1649         struct intel8x0 *chip = bus->private_data;
1650         chip->ac97_bus = NULL;
1651 }
1652
1653 static void snd_intel8x0_mixer_free_ac97(struct snd_ac97 *ac97)
1654 {
1655         struct intel8x0 *chip = ac97->private_data;
1656         chip->ac97[ac97->num] = NULL;
1657 }
1658
1659 static struct ac97_pcm ac97_pcm_defs[] __devinitdata = {
1660         /* front PCM */
1661         {
1662                 .exclusive = 1,
1663                 .r = {  {
1664                                 .slots = (1 << AC97_SLOT_PCM_LEFT) |
1665                                          (1 << AC97_SLOT_PCM_RIGHT) |
1666                                          (1 << AC97_SLOT_PCM_CENTER) |
1667                                          (1 << AC97_SLOT_PCM_SLEFT) |
1668                                          (1 << AC97_SLOT_PCM_SRIGHT) |
1669                                          (1 << AC97_SLOT_LFE)
1670                         },
1671                         {
1672                                 .slots = (1 << AC97_SLOT_PCM_LEFT) |
1673                                          (1 << AC97_SLOT_PCM_RIGHT) |
1674                                          (1 << AC97_SLOT_PCM_LEFT_0) |
1675                                          (1 << AC97_SLOT_PCM_RIGHT_0)
1676                         }
1677                 }
1678         },
1679         /* PCM IN #1 */
1680         {
1681                 .stream = 1,
1682                 .exclusive = 1,
1683                 .r = {  {
1684                                 .slots = (1 << AC97_SLOT_PCM_LEFT) |
1685                                          (1 << AC97_SLOT_PCM_RIGHT)
1686                         }
1687                 }
1688         },
1689         /* MIC IN #1 */
1690         {
1691                 .stream = 1,
1692                 .exclusive = 1,
1693                 .r = {  {
1694                                 .slots = (1 << AC97_SLOT_MIC)
1695                         }
1696                 }
1697         },
1698         /* S/PDIF PCM */
1699         {
1700                 .exclusive = 1,
1701                 .spdif = 1,
1702                 .r = {  {
1703                                 .slots = (1 << AC97_SLOT_SPDIF_LEFT2) |
1704                                          (1 << AC97_SLOT_SPDIF_RIGHT2)
1705                         }
1706                 }
1707         },
1708         /* PCM IN #2 */
1709         {
1710                 .stream = 1,
1711                 .exclusive = 1,
1712                 .r = {  {
1713                                 .slots = (1 << AC97_SLOT_PCM_LEFT) |
1714                                          (1 << AC97_SLOT_PCM_RIGHT)
1715                         }
1716                 }
1717         },
1718         /* MIC IN #2 */
1719         {
1720                 .stream = 1,
1721                 .exclusive = 1,
1722                 .r = {  {
1723                                 .slots = (1 << AC97_SLOT_MIC)
1724                         }
1725                 }
1726         },
1727 };
1728
1729 static struct ac97_quirk ac97_quirks[] __devinitdata = {
1730         {
1731                 .subvendor = 0x0e11,
1732                 .subdevice = 0x008a,
1733                 .name = "Compaq Evo W4000",     /* AD1885 */
1734                 .type = AC97_TUNE_HP_ONLY
1735         },
1736         {
1737                 .subvendor = 0x0e11,
1738                 .subdevice = 0x00b8,
1739                 .name = "Compaq Evo D510C",
1740                 .type = AC97_TUNE_HP_ONLY
1741         },
1742         {
1743                 .subvendor = 0x0e11,
1744                 .subdevice = 0x0860,
1745                 .name = "HP/Compaq nx7010",
1746                 .type = AC97_TUNE_MUTE_LED
1747         },
1748         {
1749                 .subvendor = 0x1014,
1750                 .subdevice = 0x1f00,
1751                 .name = "MS-9128",
1752                 .type = AC97_TUNE_ALC_JACK
1753         },
1754         {
1755                 .subvendor = 0x1014,
1756                 .subdevice = 0x0267,
1757                 .name = "IBM NetVista A30p",    /* AD1981B */
1758                 .type = AC97_TUNE_HP_ONLY
1759         },
1760         {
1761                 .subvendor = 0x1025,
1762                 .subdevice = 0x0083,
1763                 .name = "Acer Aspire 3003LCi",
1764                 .type = AC97_TUNE_HP_ONLY
1765         },
1766         {
1767                 .subvendor = 0x1028,
1768                 .subdevice = 0x00d8,
1769                 .name = "Dell Precision 530",   /* AD1885 */
1770                 .type = AC97_TUNE_HP_ONLY
1771         },
1772         {
1773                 .subvendor = 0x1028,
1774                 .subdevice = 0x010d,
1775                 .name = "Dell", /* which model?  AD1885 */
1776                 .type = AC97_TUNE_HP_ONLY
1777         },
1778         {
1779                 .subvendor = 0x1028,
1780                 .subdevice = 0x0126,
1781                 .name = "Dell Optiplex GX260",  /* AD1981A */
1782                 .type = AC97_TUNE_HP_ONLY
1783         },
1784         {
1785                 .subvendor = 0x1028,
1786                 .subdevice = 0x012c,
1787                 .name = "Dell Precision 650",   /* AD1981A */
1788                 .type = AC97_TUNE_HP_ONLY
1789         },
1790         {
1791                 .subvendor = 0x1028,
1792                 .subdevice = 0x012d,
1793                 .name = "Dell Precision 450",   /* AD1981B*/
1794                 .type = AC97_TUNE_HP_ONLY
1795         },
1796         {
1797                 .subvendor = 0x1028,
1798                 .subdevice = 0x0147,
1799                 .name = "Dell", /* which model?  AD1981B*/
1800                 .type = AC97_TUNE_HP_ONLY
1801         },
1802         {
1803                 .subvendor = 0x1028,
1804                 .subdevice = 0x0151,
1805                 .name = "Dell Optiplex GX270",  /* AD1981B */
1806                 .type = AC97_TUNE_HP_ONLY
1807         },
1808         {
1809                 .subvendor = 0x1028,
1810                 .subdevice = 0x014e,
1811                 .name = "Dell D800", /* STAC9750/51 */
1812                 .type = AC97_TUNE_HP_ONLY
1813         },
1814         {
1815                 .subvendor = 0x1028,
1816                 .subdevice = 0x0163,
1817                 .name = "Dell Unknown", /* STAC9750/51 */
1818                 .type = AC97_TUNE_HP_ONLY
1819         },
1820         {
1821                 .subvendor = 0x1028,
1822                 .subdevice = 0x0191,
1823                 .name = "Dell Inspiron 8600",
1824                 .type = AC97_TUNE_HP_ONLY
1825         },
1826         {
1827                 .subvendor = 0x103c,
1828                 .subdevice = 0x006d,
1829                 .name = "HP zv5000",
1830                 .type = AC97_TUNE_MUTE_LED      /*AD1981B*/
1831         },
1832         {       /* FIXME: which codec? */
1833                 .subvendor = 0x103c,
1834                 .subdevice = 0x00c3,
1835                 .name = "HP xw6000",
1836                 .type = AC97_TUNE_HP_ONLY
1837         },
1838         {
1839                 .subvendor = 0x103c,
1840                 .subdevice = 0x088c,
1841                 .name = "HP nc8000",
1842                 .type = AC97_TUNE_MUTE_LED
1843         },
1844         {
1845                 .subvendor = 0x103c,
1846                 .subdevice = 0x0890,
1847                 .name = "HP nc6000",
1848                 .type = AC97_TUNE_MUTE_LED
1849         },
1850         {
1851                 .subvendor = 0x103c,
1852                 .subdevice = 0x0934,
1853                 .name = "HP nx8220",
1854                 .type = AC97_TUNE_MUTE_LED
1855         },
1856         {
1857                 .subvendor = 0x103c,
1858                 .subdevice = 0x129d,
1859                 .name = "HP xw8000",
1860                 .type = AC97_TUNE_HP_ONLY
1861         },
1862         {
1863                 .subvendor = 0x103c,
1864                 .subdevice = 0x0938,
1865                 .name = "HP nc4200",
1866                 .type = AC97_TUNE_HP_MUTE_LED
1867         },
1868         {
1869                 .subvendor = 0x103c,
1870                 .subdevice = 0x099c,
1871                 .name = "HP nx6110/nc6120",
1872                 .type = AC97_TUNE_HP_MUTE_LED
1873         },
1874         {
1875                 .subvendor = 0x103c,
1876                 .subdevice = 0x0944,
1877                 .name = "HP nc6220",
1878                 .type = AC97_TUNE_HP_MUTE_LED
1879         },
1880         {
1881                 .subvendor = 0x103c,
1882                 .subdevice = 0x0934,
1883                 .name = "HP nc8220",
1884                 .type = AC97_TUNE_HP_MUTE_LED
1885         },
1886         {
1887                 .subvendor = 0x103c,
1888                 .subdevice = 0x12f1,
1889                 .name = "HP xw8200",    /* AD1981B*/
1890                 .type = AC97_TUNE_HP_ONLY
1891         },
1892         {
1893                 .subvendor = 0x103c,
1894                 .subdevice = 0x12f2,
1895                 .name = "HP xw6200",
1896                 .type = AC97_TUNE_HP_ONLY
1897         },
1898         {
1899                 .subvendor = 0x103c,
1900                 .subdevice = 0x3008,
1901                 .name = "HP xw4200",    /* AD1981B*/
1902                 .type = AC97_TUNE_HP_ONLY
1903         },
1904         {
1905                 .subvendor = 0x104d,
1906                 .subdevice = 0x8197,
1907                 .name = "Sony S1XP",
1908                 .type = AC97_TUNE_INV_EAPD
1909         },
1910         {
1911                 .subvendor = 0x1043,
1912                 .subdevice = 0x80f3,
1913                 .name = "ASUS ICH5/AD1985",
1914                 .type = AC97_TUNE_AD_SHARING
1915         },
1916         {
1917                 .subvendor = 0x10cf,
1918                 .subdevice = 0x11c3,
1919                 .name = "Fujitsu-Siemens E4010",
1920                 .type = AC97_TUNE_HP_ONLY
1921         },
1922         {
1923                 .subvendor = 0x10cf,
1924                 .subdevice = 0x1225,
1925                 .name = "Fujitsu-Siemens T3010",
1926                 .type = AC97_TUNE_HP_ONLY
1927         },
1928         {
1929                 .subvendor = 0x10cf,
1930                 .subdevice = 0x1253,
1931                 .name = "Fujitsu S6210",        /* STAC9750/51 */
1932                 .type = AC97_TUNE_HP_ONLY
1933         },
1934         {
1935                 .subvendor = 0x10cf,
1936                 .subdevice = 0x12ec,
1937                 .name = "Fujitsu-Siemens 4010",
1938                 .type = AC97_TUNE_HP_ONLY
1939         },
1940         {
1941                 .subvendor = 0x10cf,
1942                 .subdevice = 0x12f2,
1943                 .name = "Fujitsu-Siemens Celsius H320",
1944                 .type = AC97_TUNE_SWAP_HP
1945         },
1946         {
1947                 .subvendor = 0x10f1,
1948                 .subdevice = 0x2665,
1949                 .name = "Fujitsu-Siemens Celsius",      /* AD1981? */
1950                 .type = AC97_TUNE_HP_ONLY
1951         },
1952         {
1953                 .subvendor = 0x10f1,
1954                 .subdevice = 0x2885,
1955                 .name = "AMD64 Mobo",   /* ALC650 */
1956                 .type = AC97_TUNE_HP_ONLY
1957         },
1958         {
1959                 .subvendor = 0x10f1,
1960                 .subdevice = 0x2895,
1961                 .name = "Tyan Thunder K8WE",
1962                 .type = AC97_TUNE_HP_ONLY
1963         },
1964         {
1965                 .subvendor = 0x10f7,
1966                 .subdevice = 0x834c,
1967                 .name = "Panasonic CF-R4",
1968                 .type = AC97_TUNE_HP_ONLY,
1969         },
1970         {
1971                 .subvendor = 0x110a,
1972                 .subdevice = 0x0056,
1973                 .name = "Fujitsu-Siemens Scenic",       /* AD1981? */
1974                 .type = AC97_TUNE_HP_ONLY
1975         },
1976         {
1977                 .subvendor = 0x11d4,
1978                 .subdevice = 0x5375,
1979                 .name = "ADI AD1985 (discrete)",
1980                 .type = AC97_TUNE_HP_ONLY
1981         },
1982         {
1983                 .subvendor = 0x1462,
1984                 .subdevice = 0x5470,
1985                 .name = "MSI P4 ATX 645 Ultra",
1986                 .type = AC97_TUNE_HP_ONLY
1987         },
1988         {
1989                 .subvendor = 0x1734,
1990                 .subdevice = 0x0088,
1991                 .name = "Fujitsu-Siemens D1522",        /* AD1981 */
1992                 .type = AC97_TUNE_HP_ONLY
1993         },
1994         {
1995                 .subvendor = 0x8086,
1996                 .subdevice = 0x2000,
1997                 .mask = 0xfff0,
1998                 .name = "Intel ICH5/AD1985",
1999                 .type = AC97_TUNE_AD_SHARING
2000         },
2001         {
2002                 .subvendor = 0x8086,
2003                 .subdevice = 0x4000,
2004                 .mask = 0xfff0,
2005                 .name = "Intel ICH5/AD1985",
2006                 .type = AC97_TUNE_AD_SHARING
2007         },
2008         {
2009                 .subvendor = 0x8086,
2010                 .subdevice = 0x4856,
2011                 .name = "Intel D845WN (82801BA)",
2012                 .type = AC97_TUNE_SWAP_HP
2013         },
2014         {
2015                 .subvendor = 0x8086,
2016                 .subdevice = 0x4d44,
2017                 .name = "Intel D850EMV2",       /* AD1885 */
2018                 .type = AC97_TUNE_HP_ONLY
2019         },
2020         {
2021                 .subvendor = 0x8086,
2022                 .subdevice = 0x4d56,
2023                 .name = "Intel ICH/AD1885",
2024                 .type = AC97_TUNE_HP_ONLY
2025         },
2026         {
2027                 .subvendor = 0x8086,
2028                 .subdevice = 0x6000,
2029                 .mask = 0xfff0,
2030                 .name = "Intel ICH5/AD1985",
2031                 .type = AC97_TUNE_AD_SHARING
2032         },
2033         {
2034                 .subvendor = 0x8086,
2035                 .subdevice = 0xe000,
2036                 .mask = 0xfff0,
2037                 .name = "Intel ICH5/AD1985",
2038                 .type = AC97_TUNE_AD_SHARING
2039         },
2040 #if 0 /* FIXME: this seems wrong on most boards */
2041         {
2042                 .subvendor = 0x8086,
2043                 .subdevice = 0xa000,
2044                 .mask = 0xfff0,
2045                 .name = "Intel ICH5/AD1985",
2046                 .type = AC97_TUNE_HP_ONLY
2047         },
2048 #endif
2049         { } /* terminator */
2050 };
2051
2052 static int __devinit snd_intel8x0_mixer(struct intel8x0 *chip, int ac97_clock,
2053                                         const char *quirk_override)
2054 {
2055         struct snd_ac97_bus *pbus;
2056         struct snd_ac97_template ac97;
2057         int err;
2058         unsigned int i, codecs;
2059         unsigned int glob_sta = 0;
2060         struct snd_ac97_bus_ops *ops;
2061         static struct snd_ac97_bus_ops standard_bus_ops = {
2062                 .write = snd_intel8x0_codec_write,
2063                 .read = snd_intel8x0_codec_read,
2064         };
2065         static struct snd_ac97_bus_ops ali_bus_ops = {
2066                 .write = snd_intel8x0_ali_codec_write,
2067                 .read = snd_intel8x0_ali_codec_read,
2068         };
2069
2070         chip->spdif_idx = -1; /* use PCMOUT (or disabled) */
2071         switch (chip->device_type) {
2072         case DEVICE_NFORCE:
2073                 chip->spdif_idx = NVD_SPBAR;
2074                 break;
2075         case DEVICE_ALI:
2076                 chip->spdif_idx = ALID_AC97SPDIFOUT;
2077                 break;
2078         case DEVICE_INTEL_ICH4:
2079                 chip->spdif_idx = ICHD_SPBAR;
2080                 break;
2081         };
2082
2083         chip->in_ac97_init = 1;
2084
2085         memset(&ac97, 0, sizeof(ac97));
2086         ac97.private_data = chip;
2087         ac97.private_free = snd_intel8x0_mixer_free_ac97;
2088         ac97.scaps = AC97_SCAP_SKIP_MODEM;
2089         if (chip->xbox)
2090                 ac97.scaps |= AC97_SCAP_DETECT_BY_VENDOR;
2091         if (chip->device_type != DEVICE_ALI) {
2092                 glob_sta = igetdword(chip, ICHREG(GLOB_STA));
2093                 ops = &standard_bus_ops;
2094                 chip->in_sdin_init = 1;
2095                 codecs = 0;
2096                 for (i = 0; i < chip->max_codecs; i++) {
2097                         if (! (glob_sta & chip->codec_bit[i]))
2098                                 continue;
2099                         if (chip->device_type == DEVICE_INTEL_ICH4) {
2100                                 snd_intel8x0_codec_read_test(chip, codecs);
2101                                 chip->ac97_sdin[codecs] =
2102                                         igetbyte(chip, ICHREG(SDM)) & ICH_LDI_MASK;
2103                                 snd_assert(chip->ac97_sdin[codecs] < 3,
2104                                            chip->ac97_sdin[codecs] = 0);
2105                         } else
2106                                 chip->ac97_sdin[codecs] = i;
2107                         codecs++;
2108                 }
2109                 chip->in_sdin_init = 0;
2110                 if (! codecs)
2111                         codecs = 1;
2112         } else {
2113                 ops = &ali_bus_ops;
2114                 codecs = 1;
2115                 /* detect the secondary codec */
2116                 for (i = 0; i < 100; i++) {
2117                         unsigned int reg = igetdword(chip, ICHREG(ALI_RTSR));
2118                         if (reg & 0x40) {
2119                                 codecs = 2;
2120                                 break;
2121                         }
2122                         iputdword(chip, ICHREG(ALI_RTSR), reg | 0x40);
2123                         udelay(1);
2124                 }
2125         }
2126         if ((err = snd_ac97_bus(chip->card, 0, ops, chip, &pbus)) < 0)
2127                 goto __err;
2128         pbus->private_free = snd_intel8x0_mixer_free_ac97_bus;
2129         if (ac97_clock >= 8000 && ac97_clock <= 48000)
2130                 pbus->clock = ac97_clock;
2131         /* FIXME: my test board doesn't work well with VRA... */
2132         if (chip->device_type == DEVICE_ALI)
2133                 pbus->no_vra = 1;
2134         else
2135                 pbus->dra = 1;
2136         chip->ac97_bus = pbus;
2137         chip->ncodecs = codecs;
2138
2139         ac97.pci = chip->pci;
2140         for (i = 0; i < codecs; i++) {
2141                 ac97.num = i;
2142                 if ((err = snd_ac97_mixer(pbus, &ac97, &chip->ac97[i])) < 0) {
2143                         if (err != -EACCES)
2144                                 snd_printk(KERN_ERR "Unable to initialize codec #%d\n", i);
2145                         if (i == 0)
2146                                 goto __err;
2147                         continue;
2148                 }
2149         }
2150         /* tune up the primary codec */
2151         snd_ac97_tune_hardware(chip->ac97[0], ac97_quirks, quirk_override);
2152         /* enable separate SDINs for ICH4 */
2153         if (chip->device_type == DEVICE_INTEL_ICH4)
2154                 pbus->isdin = 1;
2155         /* find the available PCM streams */
2156         i = ARRAY_SIZE(ac97_pcm_defs);
2157         if (chip->device_type != DEVICE_INTEL_ICH4)
2158                 i -= 2;         /* do not allocate PCM2IN and MIC2 */
2159         if (chip->spdif_idx < 0)
2160                 i--;            /* do not allocate S/PDIF */
2161         err = snd_ac97_pcm_assign(pbus, i, ac97_pcm_defs);
2162         if (err < 0)
2163                 goto __err;
2164         chip->ichd[ICHD_PCMOUT].pcm = &pbus->pcms[0];
2165         chip->ichd[ICHD_PCMIN].pcm = &pbus->pcms[1];
2166         chip->ichd[ICHD_MIC].pcm = &pbus->pcms[2];
2167         if (chip->spdif_idx >= 0)
2168                 chip->ichd[chip->spdif_idx].pcm = &pbus->pcms[3];
2169         if (chip->device_type == DEVICE_INTEL_ICH4) {
2170                 chip->ichd[ICHD_PCM2IN].pcm = &pbus->pcms[4];
2171                 chip->ichd[ICHD_MIC2].pcm = &pbus->pcms[5];
2172         }
2173         /* enable separate SDINs for ICH4 */
2174         if (chip->device_type == DEVICE_INTEL_ICH4) {
2175                 struct ac97_pcm *pcm = chip->ichd[ICHD_PCM2IN].pcm;
2176                 u8 tmp = igetbyte(chip, ICHREG(SDM));
2177                 tmp &= ~(ICH_DI2L_MASK|ICH_DI1L_MASK);
2178                 if (pcm) {
2179                         tmp |= ICH_SE;  /* steer enable for multiple SDINs */
2180                         tmp |= chip->ac97_sdin[0] << ICH_DI1L_SHIFT;
2181                         for (i = 1; i < 4; i++) {
2182                                 if (pcm->r[0].codec[i]) {
2183                                         tmp |= chip->ac97_sdin[pcm->r[0].codec[1]->num] << ICH_DI2L_SHIFT;
2184                                         break;
2185                                 }
2186                         }
2187                 } else {
2188                         tmp &= ~ICH_SE; /* steer disable */
2189                 }
2190                 iputbyte(chip, ICHREG(SDM), tmp);
2191         }
2192         if (pbus->pcms[0].r[0].slots & (1 << AC97_SLOT_PCM_SLEFT)) {
2193                 chip->multi4 = 1;
2194                 if (pbus->pcms[0].r[0].slots & (1 << AC97_SLOT_LFE))
2195                         chip->multi6 = 1;
2196         }
2197         if (pbus->pcms[0].r[1].rslots[0]) {
2198                 chip->dra = 1;
2199         }
2200         if (chip->device_type == DEVICE_INTEL_ICH4) {
2201                 if ((igetdword(chip, ICHREG(GLOB_STA)) & ICH_SAMPLE_CAP) == ICH_SAMPLE_16_20)
2202                         chip->smp20bit = 1;
2203         }
2204         if (chip->device_type == DEVICE_NFORCE) {
2205                 /* 48kHz only */
2206                 chip->ichd[chip->spdif_idx].pcm->rates = SNDRV_PCM_RATE_48000;
2207         }
2208         if (chip->device_type == DEVICE_INTEL_ICH4) {
2209                 /* use slot 10/11 for SPDIF */
2210                 u32 val;
2211                 val = igetdword(chip, ICHREG(GLOB_CNT)) & ~ICH_PCM_SPDIF_MASK;
2212                 val |= ICH_PCM_SPDIF_1011;
2213                 iputdword(chip, ICHREG(GLOB_CNT), val);
2214                 snd_ac97_update_bits(chip->ac97[0], AC97_EXTENDED_STATUS, 0x03 << 4, 0x03 << 4);
2215         }
2216         chip->in_ac97_init = 0;
2217         return 0;
2218
2219  __err:
2220         /* clear the cold-reset bit for the next chance */
2221         if (chip->device_type != DEVICE_ALI)
2222                 iputdword(chip, ICHREG(GLOB_CNT),
2223                           igetdword(chip, ICHREG(GLOB_CNT)) & ~ICH_AC97COLD);
2224         return err;
2225 }
2226
2227
2228 /*
2229  *
2230  */
2231
2232 static void do_ali_reset(struct intel8x0 *chip)
2233 {
2234         iputdword(chip, ICHREG(ALI_SCR), ICH_ALI_SC_RESET);
2235         iputdword(chip, ICHREG(ALI_FIFOCR1), 0x83838383);
2236         iputdword(chip, ICHREG(ALI_FIFOCR2), 0x83838383);
2237         iputdword(chip, ICHREG(ALI_FIFOCR3), 0x83838383);
2238         iputdword(chip, ICHREG(ALI_INTERFACECR),
2239                   ICH_ALI_IF_PI|ICH_ALI_IF_PO);
2240         iputdword(chip, ICHREG(ALI_INTERRUPTCR), 0x00000000);
2241         iputdword(chip, ICHREG(ALI_INTERRUPTSR), 0x00000000);
2242 }
2243
2244 static int snd_intel8x0_ich_chip_init(struct intel8x0 *chip, int probing)
2245 {
2246         unsigned long end_time;
2247         unsigned int cnt, status, nstatus;
2248
2249         /* put logic to right state */
2250         /* first clear status bits */
2251         status = ICH_RCS | ICH_MCINT | ICH_POINT | ICH_PIINT;
2252         if (chip->device_type == DEVICE_NFORCE)
2253                 status |= ICH_NVSPINT;
2254         cnt = igetdword(chip, ICHREG(GLOB_STA));
2255         iputdword(chip, ICHREG(GLOB_STA), cnt & status);
2256
2257         /* ACLink on, 2 channels */
2258         cnt = igetdword(chip, ICHREG(GLOB_CNT));
2259         cnt &= ~(ICH_ACLINK | ICH_PCM_246_MASK);
2260 #ifdef CONFIG_SND_AC97_POWER_SAVE
2261         /* do cold reset - the full ac97 powerdown may leave the controller
2262          * in a warm state but actually it cannot communicate with the codec.
2263          */
2264         iputdword(chip, ICHREG(GLOB_CNT), cnt & ~ICH_AC97COLD);
2265         cnt = igetdword(chip, ICHREG(GLOB_CNT));
2266         udelay(10);
2267         iputdword(chip, ICHREG(GLOB_CNT), cnt | ICH_AC97COLD);
2268         msleep(1);
2269 #else
2270         /* finish cold or do warm reset */
2271         cnt |= (cnt & ICH_AC97COLD) == 0 ? ICH_AC97COLD : ICH_AC97WARM;
2272         iputdword(chip, ICHREG(GLOB_CNT), cnt);
2273         end_time = (jiffies + (HZ / 4)) + 1;
2274         do {
2275                 if ((igetdword(chip, ICHREG(GLOB_CNT)) & ICH_AC97WARM) == 0)
2276                         goto __ok;
2277                 schedule_timeout_uninterruptible(1);
2278         } while (time_after_eq(end_time, jiffies));
2279         snd_printk(KERN_ERR "AC'97 warm reset still in progress? [0x%x]\n",
2280                    igetdword(chip, ICHREG(GLOB_CNT)));
2281         return -EIO;
2282
2283       __ok:
2284 #endif
2285         if (probing) {
2286                 /* wait for any codec ready status.
2287                  * Once it becomes ready it should remain ready
2288                  * as long as we do not disable the ac97 link.
2289                  */
2290                 end_time = jiffies + HZ;
2291                 do {
2292                         status = igetdword(chip, ICHREG(GLOB_STA)) &
2293                                 chip->codec_isr_bits;
2294                         if (status)
2295                                 break;
2296                         schedule_timeout_uninterruptible(1);
2297                 } while (time_after_eq(end_time, jiffies));
2298                 if (! status) {
2299                         /* no codec is found */
2300                         snd_printk(KERN_ERR "codec_ready: codec is not ready [0x%x]\n",
2301                                    igetdword(chip, ICHREG(GLOB_STA)));
2302                         return -EIO;
2303                 }
2304
2305                 /* wait for other codecs ready status. */
2306                 end_time = jiffies + HZ / 4;
2307                 while (status != chip->codec_isr_bits &&
2308                        time_after_eq(end_time, jiffies)) {
2309                         schedule_timeout_uninterruptible(1);
2310                         status |= igetdword(chip, ICHREG(GLOB_STA)) &
2311                                 chip->codec_isr_bits;
2312                 }
2313
2314         } else {
2315                 /* resume phase */
2316                 int i;
2317                 status = 0;
2318                 for (i = 0; i < chip->ncodecs; i++)
2319                         if (chip->ac97[i])
2320                                 status |= chip->codec_bit[chip->ac97_sdin[i]];
2321                 /* wait until all the probed codecs are ready */
2322                 end_time = jiffies + HZ;
2323                 do {
2324                         nstatus = igetdword(chip, ICHREG(GLOB_STA)) &
2325                                 chip->codec_isr_bits;
2326                         if (status == nstatus)
2327                                 break;
2328                         schedule_timeout_uninterruptible(1);
2329                 } while (time_after_eq(end_time, jiffies));
2330         }
2331
2332         if (chip->device_type == DEVICE_SIS) {
2333                 /* unmute the output on SIS7012 */
2334                 iputword(chip, 0x4c, igetword(chip, 0x4c) | 1);
2335         }
2336         if (chip->device_type == DEVICE_NFORCE) {
2337                 /* enable SPDIF interrupt */
2338                 unsigned int val;
2339                 pci_read_config_dword(chip->pci, 0x4c, &val);
2340                 val |= 0x1000000;
2341                 pci_write_config_dword(chip->pci, 0x4c, val);
2342         }
2343         return 0;
2344 }
2345
2346 static int snd_intel8x0_ali_chip_init(struct intel8x0 *chip, int probing)
2347 {
2348         u32 reg;
2349         int i = 0;
2350
2351         reg = igetdword(chip, ICHREG(ALI_SCR));
2352         if ((reg & 2) == 0)     /* Cold required */
2353                 reg |= 2;
2354         else
2355                 reg |= 1;       /* Warm */
2356         reg &= ~0x80000000;     /* ACLink on */
2357         iputdword(chip, ICHREG(ALI_SCR), reg);
2358
2359         for (i = 0; i < HZ / 2; i++) {
2360                 if (! (igetdword(chip, ICHREG(ALI_INTERRUPTSR)) & ALI_INT_GPIO))
2361                         goto __ok;
2362                 schedule_timeout_uninterruptible(1);
2363         }
2364         snd_printk(KERN_ERR "AC'97 reset failed.\n");
2365         if (probing)
2366                 return -EIO;
2367
2368  __ok:
2369         for (i = 0; i < HZ / 2; i++) {
2370                 reg = igetdword(chip, ICHREG(ALI_RTSR));
2371                 if (reg & 0x80) /* primary codec */
2372                         break;
2373                 iputdword(chip, ICHREG(ALI_RTSR), reg | 0x80);
2374                 schedule_timeout_uninterruptible(1);
2375         }
2376
2377         do_ali_reset(chip);
2378         return 0;
2379 }
2380
2381 static int snd_intel8x0_chip_init(struct intel8x0 *chip, int probing)
2382 {
2383         unsigned int i, timeout;
2384         int err;
2385
2386         if (chip->device_type != DEVICE_ALI) {
2387                 if ((err = snd_intel8x0_ich_chip_init(chip, probing)) < 0)
2388                         return err;
2389                 iagetword(chip, 0);     /* clear semaphore flag */
2390         } else {
2391                 if ((err = snd_intel8x0_ali_chip_init(chip, probing)) < 0)
2392                         return err;
2393         }
2394
2395         /* disable interrupts */
2396         for (i = 0; i < chip->bdbars_count; i++)
2397                 iputbyte(chip, ICH_REG_OFF_CR + chip->ichd[i].reg_offset, 0x00);
2398         /* reset channels */
2399         for (i = 0; i < chip->bdbars_count; i++)
2400                 iputbyte(chip, ICH_REG_OFF_CR + chip->ichd[i].reg_offset, ICH_RESETREGS);
2401         for (i = 0; i < chip->bdbars_count; i++) {
2402                 timeout = 100000;
2403                 while (--timeout != 0) {
2404                         if ((igetbyte(chip, ICH_REG_OFF_CR + chip->ichd[i].reg_offset) & ICH_RESETREGS) == 0)
2405                                 break;
2406                 }
2407                 if (timeout == 0)
2408                         printk(KERN_ERR "intel8x0: reset of registers failed?\n");
2409         }
2410         /* initialize Buffer Descriptor Lists */
2411         for (i = 0; i < chip->bdbars_count; i++)
2412                 iputdword(chip, ICH_REG_OFF_BDBAR + chip->ichd[i].reg_offset,
2413                           chip->ichd[i].bdbar_addr);
2414         return 0;
2415 }
2416
2417 static int snd_intel8x0_free(struct intel8x0 *chip)
2418 {
2419         unsigned int i;
2420
2421         if (chip->irq < 0)
2422                 goto __hw_end;
2423         /* disable interrupts */
2424         for (i = 0; i < chip->bdbars_count; i++)
2425                 iputbyte(chip, ICH_REG_OFF_CR + chip->ichd[i].reg_offset, 0x00);
2426         /* reset channels */
2427         for (i = 0; i < chip->bdbars_count; i++)
2428                 iputbyte(chip, ICH_REG_OFF_CR + chip->ichd[i].reg_offset, ICH_RESETREGS);
2429         if (chip->device_type == DEVICE_NFORCE) {
2430                 /* stop the spdif interrupt */
2431                 unsigned int val;
2432                 pci_read_config_dword(chip->pci, 0x4c, &val);
2433                 val &= ~0x1000000;
2434                 pci_write_config_dword(chip->pci, 0x4c, val);
2435         }
2436         /* --- */
2437         synchronize_irq(chip->irq);
2438       __hw_end:
2439         if (chip->irq >= 0)
2440                 free_irq(chip->irq, chip);
2441         if (chip->bdbars.area) {
2442                 if (chip->fix_nocache)
2443                         fill_nocache(chip->bdbars.area, chip->bdbars.bytes, 0);
2444                 snd_dma_free_pages(&chip->bdbars);
2445         }
2446         if (chip->remap_addr)
2447                 iounmap(chip->remap_addr);
2448         if (chip->remap_bmaddr)
2449                 iounmap(chip->remap_bmaddr);
2450         pci_release_regions(chip->pci);
2451         pci_disable_device(chip->pci);
2452         kfree(chip);
2453         return 0;
2454 }
2455
2456 #ifdef CONFIG_PM
2457 /*
2458  * power management
2459  */
2460 static int intel8x0_suspend(struct pci_dev *pci, pm_message_t state)
2461 {
2462         struct snd_card *card = pci_get_drvdata(pci);
2463         struct intel8x0 *chip = card->private_data;
2464         int i;
2465
2466         snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
2467         for (i = 0; i < chip->pcm_devs; i++)
2468                 snd_pcm_suspend_all(chip->pcm[i]);
2469         /* clear nocache */
2470         if (chip->fix_nocache) {
2471                 for (i = 0; i < chip->bdbars_count; i++) {
2472                         struct ichdev *ichdev = &chip->ichd[i];
2473                         if (ichdev->substream && ichdev->page_attr_changed) {
2474                                 struct snd_pcm_runtime *runtime = ichdev->substream->runtime;
2475                                 if (runtime->dma_area)
2476                                         fill_nocache(runtime->dma_area, runtime->dma_bytes, 0);
2477                         }
2478                 }
2479         }
2480         for (i = 0; i < chip->ncodecs; i++)
2481                 snd_ac97_suspend(chip->ac97[i]);
2482         if (chip->device_type == DEVICE_INTEL_ICH4)
2483                 chip->sdm_saved = igetbyte(chip, ICHREG(SDM));
2484
2485         if (chip->irq >= 0) {
2486                 synchronize_irq(chip->irq);
2487                 free_irq(chip->irq, chip);
2488                 chip->irq = -1;
2489         }
2490         pci_disable_device(pci);
2491         pci_save_state(pci);
2492         pci_set_power_state(pci, pci_choose_state(pci, state));
2493         return 0;
2494 }
2495
2496 static int intel8x0_resume(struct pci_dev *pci)
2497 {
2498         struct snd_card *card = pci_get_drvdata(pci);
2499         struct intel8x0 *chip = card->private_data;
2500         int i;
2501
2502         pci_set_power_state(pci, PCI_D0);
2503         pci_restore_state(pci);
2504         if (pci_enable_device(pci) < 0) {
2505                 printk(KERN_ERR "intel8x0: pci_enable_device failed, "
2506                        "disabling device\n");
2507                 snd_card_disconnect(card);
2508                 return -EIO;
2509         }
2510         pci_set_master(pci);
2511         if (request_irq(pci->irq, snd_intel8x0_interrupt,
2512                         IRQF_SHARED, card->shortname, chip)) {
2513                 printk(KERN_ERR "intel8x0: unable to grab IRQ %d, "
2514                        "disabling device\n", pci->irq);
2515                 snd_card_disconnect(card);
2516                 return -EIO;
2517         }
2518         chip->irq = pci->irq;
2519         synchronize_irq(chip->irq);
2520         snd_intel8x0_chip_init(chip, 0);
2521
2522         /* re-initialize mixer stuff */
2523         if (chip->device_type == DEVICE_INTEL_ICH4) {
2524                 /* enable separate SDINs for ICH4 */
2525                 iputbyte(chip, ICHREG(SDM), chip->sdm_saved);
2526                 /* use slot 10/11 for SPDIF */
2527                 iputdword(chip, ICHREG(GLOB_CNT),
2528                           (igetdword(chip, ICHREG(GLOB_CNT)) & ~ICH_PCM_SPDIF_MASK) |
2529                           ICH_PCM_SPDIF_1011);
2530         }
2531
2532         /* refill nocache */
2533         if (chip->fix_nocache)
2534                 fill_nocache(chip->bdbars.area, chip->bdbars.bytes, 1);
2535
2536         for (i = 0; i < chip->ncodecs; i++)
2537                 snd_ac97_resume(chip->ac97[i]);
2538
2539         /* refill nocache */
2540         if (chip->fix_nocache) {
2541                 for (i = 0; i < chip->bdbars_count; i++) {
2542                         struct ichdev *ichdev = &chip->ichd[i];
2543                         if (ichdev->substream && ichdev->page_attr_changed) {
2544                                 struct snd_pcm_runtime *runtime = ichdev->substream->runtime;
2545                                 if (runtime->dma_area)
2546                                         fill_nocache(runtime->dma_area, runtime->dma_bytes, 1);
2547                         }
2548                 }
2549         }
2550
2551         /* resume status */
2552         for (i = 0; i < chip->bdbars_count; i++) {
2553                 struct ichdev *ichdev = &chip->ichd[i];
2554                 unsigned long port = ichdev->reg_offset;
2555                 if (! ichdev->substream || ! ichdev->suspended)
2556                         continue;
2557                 if (ichdev->ichd == ICHD_PCMOUT)
2558                         snd_intel8x0_setup_pcm_out(chip, ichdev->substream->runtime);
2559                 iputdword(chip, port + ICH_REG_OFF_BDBAR, ichdev->bdbar_addr);
2560                 iputbyte(chip, port + ICH_REG_OFF_LVI, ichdev->lvi);
2561                 iputbyte(chip, port + ICH_REG_OFF_CIV, ichdev->civ);
2562                 iputbyte(chip, port + ichdev->roff_sr, ICH_FIFOE | ICH_BCIS | ICH_LVBCI);
2563         }
2564
2565         snd_power_change_state(card, SNDRV_CTL_POWER_D0);
2566         return 0;
2567 }
2568 #endif /* CONFIG_PM */
2569
2570 #define INTEL8X0_TESTBUF_SIZE   32768   /* enough large for one shot */
2571
2572 static void __devinit intel8x0_measure_ac97_clock(struct intel8x0 *chip)
2573 {
2574         struct snd_pcm_substream *subs;
2575         struct ichdev *ichdev;
2576         unsigned long port;
2577         unsigned long pos, t;
2578         struct timeval start_time, stop_time;
2579
2580         if (chip->ac97_bus->clock != 48000)
2581                 return; /* specified in module option */
2582
2583         subs = chip->pcm[0]->streams[0].substream;
2584         if (! subs || subs->dma_buffer.bytes < INTEL8X0_TESTBUF_SIZE) {
2585                 snd_printk(KERN_WARNING "no playback buffer allocated - aborting measure ac97 clock\n");
2586                 return;
2587         }
2588         ichdev = &chip->ichd[ICHD_PCMOUT];
2589         ichdev->physbuf = subs->dma_buffer.addr;
2590         ichdev->size = chip->ichd[ICHD_PCMOUT].fragsize = INTEL8X0_TESTBUF_SIZE;
2591         ichdev->substream = NULL; /* don't process interrupts */
2592
2593         /* set rate */
2594         if (snd_ac97_set_rate(chip->ac97[0], AC97_PCM_FRONT_DAC_RATE, 48000) < 0) {
2595                 snd_printk(KERN_ERR "cannot set ac97 rate: clock = %d\n", chip->ac97_bus->clock);
2596                 return;
2597         }
2598         snd_intel8x0_setup_periods(chip, ichdev);
2599         port = ichdev->reg_offset;
2600         spin_lock_irq(&chip->reg_lock);
2601         chip->in_measurement = 1;
2602         /* trigger */
2603         if (chip->device_type != DEVICE_ALI)
2604                 iputbyte(chip, port + ICH_REG_OFF_CR, ICH_IOCE | ICH_STARTBM);
2605         else {
2606                 iputbyte(chip, port + ICH_REG_OFF_CR, ICH_IOCE);
2607                 iputdword(chip, ICHREG(ALI_DMACR), 1 << ichdev->ali_slot);
2608         }
2609         do_gettimeofday(&start_time);
2610         spin_unlock_irq(&chip->reg_lock);
2611         msleep(50);
2612         spin_lock_irq(&chip->reg_lock);
2613         /* check the position */
2614         pos = ichdev->fragsize1;
2615         pos -= igetword(chip, ichdev->reg_offset + ichdev->roff_picb) << ichdev->pos_shift;
2616         pos += ichdev->position;
2617         chip->in_measurement = 0;
2618         do_gettimeofday(&stop_time);
2619         /* stop */
2620         if (chip->device_type == DEVICE_ALI) {
2621                 iputdword(chip, ICHREG(ALI_DMACR), 1 << (ichdev->ali_slot + 16));
2622                 iputbyte(chip, port + ICH_REG_OFF_CR, 0);
2623                 while (igetbyte(chip, port + ICH_REG_OFF_CR))
2624                         ;
2625         } else {
2626                 iputbyte(chip, port + ICH_REG_OFF_CR, 0);
2627                 while (!(igetbyte(chip, port + ichdev->roff_sr) & ICH_DCH))
2628                         ;
2629         }
2630         iputbyte(chip, port + ICH_REG_OFF_CR, ICH_RESETREGS);
2631         spin_unlock_irq(&chip->reg_lock);
2632
2633         t = stop_time.tv_sec - start_time.tv_sec;
2634         t *= 1000000;
2635         t += stop_time.tv_usec - start_time.tv_usec;
2636         printk(KERN_INFO "%s: measured %lu usecs\n", __FUNCTION__, t);
2637         if (t == 0) {
2638                 snd_printk(KERN_ERR "?? calculation error..\n");
2639                 return;
2640         }
2641         pos = (pos / 4) * 1000;
2642         pos = (pos / t) * 1000 + ((pos % t) * 1000) / t;
2643         if (pos < 40000 || pos >= 60000)
2644                 /* abnormal value. hw problem? */
2645                 printk(KERN_INFO "intel8x0: measured clock %ld rejected\n", pos);
2646         else if (pos < 47500 || pos > 48500)
2647                 /* not 48000Hz, tuning the clock.. */
2648                 chip->ac97_bus->clock = (chip->ac97_bus->clock * 48000) / pos;
2649         printk(KERN_INFO "intel8x0: clocking to %d\n", chip->ac97_bus->clock);
2650         snd_ac97_update_power(chip->ac97[0], AC97_PCM_FRONT_DAC_RATE, 0);
2651 }
2652
2653 #ifdef CONFIG_PROC_FS
2654 static void snd_intel8x0_proc_read(struct snd_info_entry * entry,
2655                                    struct snd_info_buffer *buffer)
2656 {
2657         struct intel8x0 *chip = entry->private_data;
2658         unsigned int tmp;
2659
2660         snd_iprintf(buffer, "Intel8x0\n\n");
2661         if (chip->device_type == DEVICE_ALI)
2662                 return;
2663         tmp = igetdword(chip, ICHREG(GLOB_STA));
2664         snd_iprintf(buffer, "Global control        : 0x%08x\n", igetdword(chip, ICHREG(GLOB_CNT)));
2665         snd_iprintf(buffer, "Global status         : 0x%08x\n", tmp);
2666         if (chip->device_type == DEVICE_INTEL_ICH4)
2667                 snd_iprintf(buffer, "SDM                   : 0x%08x\n", igetdword(chip, ICHREG(SDM)));
2668         snd_iprintf(buffer, "AC'97 codecs ready    :");
2669         if (tmp & chip->codec_isr_bits) {
2670                 int i;
2671                 static const char *codecs[3] = {
2672                         "primary", "secondary", "tertiary"
2673                 };
2674                 for (i = 0; i < chip->max_codecs; i++)
2675                         if (tmp & chip->codec_bit[i])
2676                                 snd_iprintf(buffer, " %s", codecs[i]);
2677         } else
2678                 snd_iprintf(buffer, " none");
2679         snd_iprintf(buffer, "\n");
2680         if (chip->device_type == DEVICE_INTEL_ICH4 ||
2681             chip->device_type == DEVICE_SIS)
2682                 snd_iprintf(buffer, "AC'97 codecs SDIN     : %i %i %i\n",
2683                         chip->ac97_sdin[0],
2684                         chip->ac97_sdin[1],
2685                         chip->ac97_sdin[2]);
2686 }
2687
2688 static void __devinit snd_intel8x0_proc_init(struct intel8x0 * chip)
2689 {
2690         struct snd_info_entry *entry;
2691
2692         if (! snd_card_proc_new(chip->card, "intel8x0", &entry))
2693                 snd_info_set_text_ops(entry, chip, snd_intel8x0_proc_read);
2694 }
2695 #else
2696 #define snd_intel8x0_proc_init(x)
2697 #endif
2698
2699 static int snd_intel8x0_dev_free(struct snd_device *device)
2700 {
2701         struct intel8x0 *chip = device->device_data;
2702         return snd_intel8x0_free(chip);
2703 }
2704
2705 struct ich_reg_info {
2706         unsigned int int_sta_mask;
2707         unsigned int offset;
2708 };
2709
2710 static unsigned int ich_codec_bits[3] = {
2711         ICH_PCR, ICH_SCR, ICH_TCR
2712 };
2713 static unsigned int sis_codec_bits[3] = {
2714         ICH_PCR, ICH_SCR, ICH_SIS_TCR
2715 };
2716
2717 static int __devinit snd_intel8x0_create(struct snd_card *card,
2718                                          struct pci_dev *pci,
2719                                          unsigned long device_type,
2720                                          struct intel8x0 ** r_intel8x0)
2721 {
2722         struct intel8x0 *chip;
2723         int err;
2724         unsigned int i;
2725         unsigned int int_sta_masks;
2726         struct ichdev *ichdev;
2727         static struct snd_device_ops ops = {
2728                 .dev_free =     snd_intel8x0_dev_free,
2729         };
2730
2731         static unsigned int bdbars[] = {
2732                 3, /* DEVICE_INTEL */
2733                 6, /* DEVICE_INTEL_ICH4 */
2734                 3, /* DEVICE_SIS */
2735                 6, /* DEVICE_ALI */
2736                 4, /* DEVICE_NFORCE */
2737         };
2738         static struct ich_reg_info intel_regs[6] = {
2739                 { ICH_PIINT, 0 },
2740                 { ICH_POINT, 0x10 },
2741                 { ICH_MCINT, 0x20 },
2742                 { ICH_M2INT, 0x40 },
2743                 { ICH_P2INT, 0x50 },
2744                 { ICH_SPINT, 0x60 },
2745         };
2746         static struct ich_reg_info nforce_regs[4] = {
2747                 { ICH_PIINT, 0 },
2748                 { ICH_POINT, 0x10 },
2749                 { ICH_MCINT, 0x20 },
2750                 { ICH_NVSPINT, 0x70 },
2751         };
2752         static struct ich_reg_info ali_regs[6] = {
2753                 { ALI_INT_PCMIN, 0x40 },
2754                 { ALI_INT_PCMOUT, 0x50 },
2755                 { ALI_INT_MICIN, 0x60 },
2756                 { ALI_INT_CODECSPDIFOUT, 0x70 },
2757                 { ALI_INT_SPDIFIN, 0xa0 },
2758                 { ALI_INT_SPDIFOUT, 0xb0 },
2759         };
2760         struct ich_reg_info *tbl;
2761
2762         *r_intel8x0 = NULL;
2763
2764         if ((err = pci_enable_device(pci)) < 0)
2765                 return err;
2766
2767         chip = kzalloc(sizeof(*chip), GFP_KERNEL);
2768         if (chip == NULL) {
2769                 pci_disable_device(pci);
2770                 return -ENOMEM;
2771         }
2772         spin_lock_init(&chip->reg_lock);
2773         chip->device_type = device_type;
2774         chip->card = card;
2775         chip->pci = pci;
2776         chip->irq = -1;
2777
2778         /* module parameters */
2779         chip->buggy_irq = buggy_irq;
2780         chip->buggy_semaphore = buggy_semaphore;
2781         if (xbox)
2782                 chip->xbox = 1;
2783
2784         if (pci->vendor == PCI_VENDOR_ID_INTEL &&
2785             pci->device == PCI_DEVICE_ID_INTEL_440MX)
2786                 chip->fix_nocache = 1; /* enable workaround */
2787
2788         if ((err = pci_request_regions(pci, card->shortname)) < 0) {
2789                 kfree(chip);
2790                 pci_disable_device(pci);
2791                 return err;
2792         }
2793
2794         if (device_type == DEVICE_ALI) {
2795                 /* ALI5455 has no ac97 region */
2796                 chip->bmaddr = pci_resource_start(pci, 0);
2797                 goto port_inited;
2798         }
2799
2800         if (pci_resource_flags(pci, 2) & IORESOURCE_MEM) {      /* ICH4 and Nforce */
2801                 chip->mmio = 1;
2802                 chip->addr = pci_resource_start(pci, 2);
2803                 chip->remap_addr = ioremap_nocache(chip->addr,
2804                                                    pci_resource_len(pci, 2));
2805                 if (chip->remap_addr == NULL) {
2806                         snd_printk(KERN_ERR "AC'97 space ioremap problem\n");
2807                         snd_intel8x0_free(chip);
2808                         return -EIO;
2809                 }
2810         } else {
2811                 chip->addr = pci_resource_start(pci, 0);
2812         }
2813         if (pci_resource_flags(pci, 3) & IORESOURCE_MEM) {      /* ICH4 */
2814                 chip->bm_mmio = 1;
2815                 chip->bmaddr = pci_resource_start(pci, 3);
2816                 chip->remap_bmaddr = ioremap_nocache(chip->bmaddr,
2817                                                      pci_resource_len(pci, 3));
2818                 if (chip->remap_bmaddr == NULL) {
2819                         snd_printk(KERN_ERR "Controller space ioremap problem\n");
2820                         snd_intel8x0_free(chip);
2821                         return -EIO;
2822                 }
2823         } else {
2824                 chip->bmaddr = pci_resource_start(pci, 1);
2825         }
2826
2827  port_inited:
2828         chip->bdbars_count = bdbars[device_type];
2829
2830         /* initialize offsets */
2831         switch (device_type) {
2832         case DEVICE_NFORCE:
2833                 tbl = nforce_regs;
2834                 break;
2835         case DEVICE_ALI:
2836                 tbl = ali_regs;
2837                 break;
2838         default:
2839                 tbl = intel_regs;
2840                 break;
2841         }
2842         for (i = 0; i < chip->bdbars_count; i++) {
2843                 ichdev = &chip->ichd[i];
2844                 ichdev->ichd = i;
2845                 ichdev->reg_offset = tbl[i].offset;
2846                 ichdev->int_sta_mask = tbl[i].int_sta_mask;
2847                 if (device_type == DEVICE_SIS) {
2848                         /* SiS 7012 swaps the registers */
2849                         ichdev->roff_sr = ICH_REG_OFF_PICB;
2850                         ichdev->roff_picb = ICH_REG_OFF_SR;
2851                 } else {
2852                         ichdev->roff_sr = ICH_REG_OFF_SR;
2853                         ichdev->roff_picb = ICH_REG_OFF_PICB;
2854                 }
2855                 if (device_type == DEVICE_ALI)
2856                         ichdev->ali_slot = (ichdev->reg_offset - 0x40) / 0x10;
2857                 /* SIS7012 handles the pcm data in bytes, others are in samples */
2858                 ichdev->pos_shift = (device_type == DEVICE_SIS) ? 0 : 1;
2859         }
2860
2861         /* allocate buffer descriptor lists */
2862         /* the start of each lists must be aligned to 8 bytes */
2863         if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci),
2864                                 chip->bdbars_count * sizeof(u32) * ICH_MAX_FRAGS * 2,
2865                                 &chip->bdbars) < 0) {
2866                 snd_intel8x0_free(chip);
2867                 snd_printk(KERN_ERR "intel8x0: cannot allocate buffer descriptors\n");
2868                 return -ENOMEM;
2869         }
2870         /* tables must be aligned to 8 bytes here, but the kernel pages
2871            are much bigger, so we don't care (on i386) */
2872         /* workaround for 440MX */
2873         if (chip->fix_nocache)
2874                 fill_nocache(chip->bdbars.area, chip->bdbars.bytes, 1);
2875         int_sta_masks = 0;
2876         for (i = 0; i < chip->bdbars_count; i++) {
2877                 ichdev = &chip->ichd[i];
2878                 ichdev->bdbar = ((u32 *)chip->bdbars.area) +
2879                         (i * ICH_MAX_FRAGS * 2);
2880                 ichdev->bdbar_addr = chip->bdbars.addr +
2881                         (i * sizeof(u32) * ICH_MAX_FRAGS * 2);
2882                 int_sta_masks |= ichdev->int_sta_mask;
2883         }
2884         chip->int_sta_reg = device_type == DEVICE_ALI ?
2885                 ICH_REG_ALI_INTERRUPTSR : ICH_REG_GLOB_STA;
2886         chip->int_sta_mask = int_sta_masks;
2887
2888         /* request irq after initializaing int_sta_mask, etc */
2889         if (request_irq(pci->irq, snd_intel8x0_interrupt,
2890                         IRQF_SHARED, card->shortname, chip)) {
2891                 snd_printk(KERN_ERR "unable to grab IRQ %d\n", pci->irq);
2892                 snd_intel8x0_free(chip);
2893                 return -EBUSY;
2894         }
2895         chip->irq = pci->irq;
2896         pci_set_master(pci);
2897         synchronize_irq(chip->irq);
2898
2899         switch(chip->device_type) {
2900         case DEVICE_INTEL_ICH4:
2901                 /* ICH4 can have three codecs */
2902                 chip->max_codecs = 3;
2903                 chip->codec_bit = ich_codec_bits;
2904                 chip->codec_ready_bits = ICH_PRI | ICH_SRI | ICH_TRI;
2905                 break;
2906         case DEVICE_SIS:
2907                 /* recent SIS7012 can have three codecs */
2908                 chip->max_codecs = 3;
2909                 chip->codec_bit = sis_codec_bits;
2910                 chip->codec_ready_bits = ICH_PRI | ICH_SRI | ICH_SIS_TRI;
2911                 break;
2912         default:
2913                 /* others up to two codecs */
2914                 chip->max_codecs = 2;
2915                 chip->codec_bit = ich_codec_bits;
2916                 chip->codec_ready_bits = ICH_PRI | ICH_SRI;
2917                 break;
2918         }
2919         for (i = 0; i < chip->max_codecs; i++)
2920                 chip->codec_isr_bits |= chip->codec_bit[i];
2921
2922         if ((err = snd_intel8x0_chip_init(chip, 1)) < 0) {
2923                 snd_intel8x0_free(chip);
2924                 return err;
2925         }
2926
2927         if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
2928                 snd_intel8x0_free(chip);
2929                 return err;
2930         }
2931
2932         snd_card_set_dev(card, &pci->dev);
2933
2934         *r_intel8x0 = chip;
2935         return 0;
2936 }
2937
2938 static struct shortname_table {
2939         unsigned int id;
2940         const char *s;
2941 } shortnames[] __devinitdata = {
2942         { PCI_DEVICE_ID_INTEL_82801AA_5, "Intel 82801AA-ICH" },
2943         { PCI_DEVICE_ID_INTEL_82801AB_5, "Intel 82901AB-ICH0" },
2944         { PCI_DEVICE_ID_INTEL_82801BA_4, "Intel 82801BA-ICH2" },
2945         { PCI_DEVICE_ID_INTEL_440MX, "Intel 440MX" },
2946         { PCI_DEVICE_ID_INTEL_82801CA_5, "Intel 82801CA-ICH3" },
2947         { PCI_DEVICE_ID_INTEL_82801DB_5, "Intel 82801DB-ICH4" },
2948         { PCI_DEVICE_ID_INTEL_82801EB_5, "Intel ICH5" },
2949         { PCI_DEVICE_ID_INTEL_ESB_5, "Intel 6300ESB" },
2950         { PCI_DEVICE_ID_INTEL_ICH6_18, "Intel ICH6" },
2951         { PCI_DEVICE_ID_INTEL_ICH7_20, "Intel ICH7" },
2952         { PCI_DEVICE_ID_INTEL_ESB2_14, "Intel ESB2" },
2953         { PCI_DEVICE_ID_SI_7012, "SiS SI7012" },
2954         { PCI_DEVICE_ID_NVIDIA_MCP1_AUDIO, "NVidia nForce" },
2955         { PCI_DEVICE_ID_NVIDIA_MCP2_AUDIO, "NVidia nForce2" },
2956         { PCI_DEVICE_ID_NVIDIA_MCP3_AUDIO, "NVidia nForce3" },
2957         { PCI_DEVICE_ID_NVIDIA_CK8S_AUDIO, "NVidia CK8S" },
2958         { PCI_DEVICE_ID_NVIDIA_CK804_AUDIO, "NVidia CK804" },
2959         { PCI_DEVICE_ID_NVIDIA_CK8_AUDIO, "NVidia CK8" },
2960         { 0x003a, "NVidia MCP04" },
2961         { 0x746d, "AMD AMD8111" },
2962         { 0x7445, "AMD AMD768" },
2963         { 0x5455, "ALi M5455" },
2964         { 0, NULL },
2965 };
2966
2967 static int __devinit snd_intel8x0_probe(struct pci_dev *pci,
2968                                         const struct pci_device_id *pci_id)
2969 {
2970         struct snd_card *card;
2971         struct intel8x0 *chip;
2972         int err;
2973         struct shortname_table *name;
2974
2975         card = snd_card_new(index, id, THIS_MODULE, 0);
2976         if (card == NULL)
2977                 return -ENOMEM;
2978
2979         switch (pci_id->driver_data) {
2980         case DEVICE_NFORCE:
2981                 strcpy(card->driver, "NFORCE");
2982                 break;
2983         case DEVICE_INTEL_ICH4:
2984                 strcpy(card->driver, "ICH4");
2985                 break;
2986         default:
2987                 strcpy(card->driver, "ICH");
2988                 break;
2989         }
2990
2991         strcpy(card->shortname, "Intel ICH");
2992         for (name = shortnames; name->id; name++) {
2993                 if (pci->device == name->id) {
2994                         strcpy(card->shortname, name->s);
2995                         break;
2996                 }
2997         }
2998
2999         if (buggy_irq < 0) {
3000                 /* some Nforce[2] and ICH boards have problems with IRQ handling.
3001                  * Needs to return IRQ_HANDLED for unknown irqs.
3002                  */
3003                 if (pci_id->driver_data == DEVICE_NFORCE)
3004                         buggy_irq = 1;
3005                 else
3006                         buggy_irq = 0;
3007         }
3008
3009         if ((err = snd_intel8x0_create(card, pci, pci_id->driver_data,
3010                                        &chip)) < 0) {
3011                 snd_card_free(card);
3012                 return err;
3013         }
3014         card->private_data = chip;
3015
3016         if ((err = snd_intel8x0_mixer(chip, ac97_clock, ac97_quirk)) < 0) {
3017                 snd_card_free(card);
3018                 return err;
3019         }
3020         if ((err = snd_intel8x0_pcm(chip)) < 0) {
3021                 snd_card_free(card);
3022                 return err;
3023         }
3024
3025         snd_intel8x0_proc_init(chip);
3026
3027         snprintf(card->longname, sizeof(card->longname),
3028                  "%s with %s at %#lx, irq %i", card->shortname,
3029                  snd_ac97_get_short_name(chip->ac97[0]), chip->addr, chip->irq);
3030
3031         if (! ac97_clock)
3032                 intel8x0_measure_ac97_clock(chip);
3033
3034         if ((err = snd_card_register(card)) < 0) {
3035                 snd_card_free(card);
3036                 return err;
3037         }
3038         pci_set_drvdata(pci, card);
3039         return 0;
3040 }
3041
3042 static void __devexit snd_intel8x0_remove(struct pci_dev *pci)
3043 {
3044         snd_card_free(pci_get_drvdata(pci));
3045         pci_set_drvdata(pci, NULL);
3046 }
3047
3048 static struct pci_driver driver = {
3049         .name = "Intel ICH",
3050         .id_table = snd_intel8x0_ids,
3051         .probe = snd_intel8x0_probe,
3052         .remove = __devexit_p(snd_intel8x0_remove),
3053 #ifdef CONFIG_PM
3054         .suspend = intel8x0_suspend,
3055         .resume = intel8x0_resume,
3056 #endif
3057 };
3058
3059
3060 static int __init alsa_card_intel8x0_init(void)
3061 {
3062         return pci_register_driver(&driver);
3063 }
3064
3065 static void __exit alsa_card_intel8x0_exit(void)
3066 {
3067         pci_unregister_driver(&driver);
3068 }
3069
3070 module_init(alsa_card_intel8x0_init)
3071 module_exit(alsa_card_intel8x0_exit)