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@perex.cz>
   5  *
   6  *
   7  *   This code also contains alpha support for SiS 735 chipsets provided
   8  *   by Mike Pieper <mptei@users.sourceforge.net>. We have no datasheet
   9  *   for SiS735, so the code is not fully functional.
  10  *
  11  *
  12  *   This program is free software; you can redistribute it and/or modify
  13  *   it under the terms of the GNU General Public License as published by
  14  *   the Free Software Foundation; either version 2 of the License, or
  15  *   (at your option) any later version.
  16  *
  17  *   This program is distributed in the hope that it will be useful,
  18  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  19  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20  *   GNU General Public License for more details.
  21  *
  22  *   You should have received a copy of the GNU General Public License
  23  *   along with this program; if not, write to the Free Software
  24  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  25
  26  *
  27  */
  28
  29 #include <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@perex.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 static int spdif_aclink = -1;
  75
  76 module_param(index, int, 0444);
  77 MODULE_PARM_DESC(index, "Index value for Intel i8x0 soundcard.");
  78 module_param(id, charp, 0444);
  79 MODULE_PARM_DESC(id, "ID string for Intel i8x0 soundcard.");
  80 module_param(ac97_clock, int, 0444);
  81 MODULE_PARM_DESC(ac97_clock, "AC'97 codec clock (0 = auto-detect).");
  82 module_param(ac97_quirk, charp, 0444);
  83 MODULE_PARM_DESC(ac97_quirk, "AC'97 workaround for strange hardware.");
  84 module_param(buggy_semaphore, bool, 0444);
  85 MODULE_PARM_DESC(buggy_semaphore, "Enable workaround for hardwares with problematic codec semaphores.");
  86 module_param(buggy_irq, bool, 0444);
  87 MODULE_PARM_DESC(buggy_irq, "Enable workaround for buggy interrupts on some motherboards.");
  88 module_param(xbox, bool, 0444);
  89 MODULE_PARM_DESC(xbox, "Set to 1 for Xbox, if you have problems with the AC'97 codec detection.");
  90 module_param(spdif_aclink, int, 0444);
  91 MODULE_PARM_DESC(spdif_aclink, "S/PDIF over AC-link.");
  92
  93 /* just for backward compatibility */
  94 static int enable;
  95 module_param(enable, bool, 0444);
  96 static int joystick;
  97 module_param(joystick, int, 0444);
  98
  99 /*
 100  *  Direct registers
 101  */
 102 enum { DEVICE_INTEL, DEVICE_INTEL_ICH4, DEVICE_SIS, DEVICE_ALI, DEVICE_NFORCE };
 103
 104 #define ICHREG(x) ICH_REG_##x
 105
 106 #define DEFINE_REGSET(name,base) \
 107 enum { \
 108         ICH_REG_##name##_BDBAR  = base + 0x0,   /* dword - buffer descriptor list base address */ \
 109         ICH_REG_##name##_CIV    = base + 0x04,  /* byte - current index value */ \
 110         ICH_REG_##name##_LVI    = base + 0x05,  /* byte - last valid index */ \
 111         ICH_REG_##name##_SR     = base + 0x06,  /* byte - status register */ \
 112         ICH_REG_##name##_PICB   = base + 0x08,  /* word - position in current buffer */ \
 113         ICH_REG_##name##_PIV    = base + 0x0a,  /* byte - prefetched index value */ \
 114         ICH_REG_##name##_CR     = base + 0x0b,  /* byte - control register */ \
 115 };
 116
 117 /* busmaster blocks */
 118 DEFINE_REGSET(OFF, 0);          /* offset */
 119 DEFINE_REGSET(PI, 0x00);        /* PCM in */
 120 DEFINE_REGSET(PO, 0x10);        /* PCM out */
 121 DEFINE_REGSET(MC, 0x20);        /* Mic in */
 122
 123 /* ICH4 busmaster blocks */
 124 DEFINE_REGSET(MC2, 0x40);       /* Mic in 2 */
 125 DEFINE_REGSET(PI2, 0x50);       /* PCM in 2 */
 126 DEFINE_REGSET(SP, 0x60);        /* SPDIF out */
 127
 128 /* values for each busmaster block */
 129
 130 /* LVI */
 131 #define ICH_REG_LVI_MASK                0x1f
 132
 133 /* SR */
 134 #define ICH_FIFOE                       0x10    /* FIFO error */
 135 #define ICH_BCIS                        0x08    /* buffer completion interrupt status */
 136 #define ICH_LVBCI                       0x04    /* last valid buffer completion interrupt */
 137 #define ICH_CELV                        0x02    /* current equals last valid */
 138 #define ICH_DCH                         0x01    /* DMA controller halted */
 139
 140 /* PIV */
 141 #define ICH_REG_PIV_MASK                0x1f    /* mask */
 142
 143 /* CR */
 144 #define ICH_IOCE                        0x10    /* interrupt on completion enable */
 145 #define ICH_FEIE                        0x08    /* fifo error interrupt enable */
 146 #define ICH_LVBIE                       0x04    /* last valid buffer interrupt enable */
 147 #define ICH_RESETREGS                   0x02    /* reset busmaster registers */
 148 #define ICH_STARTBM                     0x01    /* start busmaster operation */
 149
 150
 151 /* global block */
 152 #define ICH_REG_GLOB_CNT                0x2c    /* dword - global control */
 153 #define   ICH_PCM_SPDIF_MASK    0xc0000000      /* s/pdif pcm slot mask (ICH4) */
 154 #define   ICH_PCM_SPDIF_NONE    0x00000000      /* reserved - undefined */
 155 #define   ICH_PCM_SPDIF_78      0x40000000      /* s/pdif pcm on slots 7&8 */
 156 #define   ICH_PCM_SPDIF_69      0x80000000      /* s/pdif pcm on slots 6&9 */
 157 #define   ICH_PCM_SPDIF_1011    0xc0000000      /* s/pdif pcm on slots 10&11 */
 158 #define   ICH_PCM_20BIT         0x00400000      /* 20-bit samples (ICH4) */
 159 #define   ICH_PCM_246_MASK      0x00300000      /* 6 channels (not all chips) */
 160 #define   ICH_PCM_6             0x00200000      /* 6 channels (not all chips) */
 161 #define   ICH_PCM_4             0x00100000      /* 4 channels (not all chips) */
 162 #define   ICH_PCM_2             0x00000000      /* 2 channels (stereo) */
 163 #define   ICH_SIS_PCM_246_MASK  0x000000c0      /* 6 channels (SIS7012) */
 164 #define   ICH_SIS_PCM_6         0x00000080      /* 6 channels (SIS7012) */
 165 #define   ICH_SIS_PCM_4         0x00000040      /* 4 channels (SIS7012) */
 166 #define   ICH_SIS_PCM_2         0x00000000      /* 2 channels (SIS7012) */
 167 #define   ICH_TRIE              0x00000040      /* tertiary resume interrupt enable */
 168 #define   ICH_SRIE              0x00000020      /* secondary resume interrupt enable */
 169 #define   ICH_PRIE              0x00000010      /* primary resume interrupt enable */
 170 #define   ICH_ACLINK            0x00000008      /* AClink shut off */
 171 #define   ICH_AC97WARM          0x00000004      /* AC'97 warm reset */
 172 #define   ICH_AC97COLD          0x00000002      /* AC'97 cold reset */
 173 #define   ICH_GIE               0x00000001      /* GPI interrupt enable */
 174 #define ICH_REG_GLOB_STA                0x30    /* dword - global status */
 175 #define   ICH_TRI               0x20000000      /* ICH4: tertiary (AC_SDIN2) resume interrupt */
 176 #define   ICH_TCR               0x10000000      /* ICH4: tertiary (AC_SDIN2) codec ready */
 177 #define   ICH_BCS               0x08000000      /* ICH4: bit clock stopped */
 178 #define   ICH_SPINT             0x04000000      /* ICH4: S/PDIF interrupt */
 179 #define   ICH_P2INT             0x02000000      /* ICH4: PCM2-In interrupt */
 180 #define   ICH_M2INT             0x01000000      /* ICH4: Mic2-In interrupt */
 181 #define   ICH_SAMPLE_CAP        0x00c00000      /* ICH4: sample capability bits (RO) */
 182 #define   ICH_SAMPLE_16_20      0x00400000      /* ICH4: 16- and 20-bit samples */
 183 #define   ICH_MULTICHAN_CAP     0x00300000      /* ICH4: multi-channel capability bits (RO) */
 184 #define   ICH_SIS_TRI           0x00080000      /* SIS: tertiary resume irq */
 185 #define   ICH_SIS_TCR           0x00040000      /* SIS: tertiary codec ready */
 186 #define   ICH_MD3               0x00020000      /* modem power down semaphore */
 187 #define   ICH_AD3               0x00010000      /* audio power down semaphore */
 188 #define   ICH_RCS               0x00008000      /* read completion status */
 189 #define   ICH_BIT3              0x00004000      /* bit 3 slot 12 */
 190 #define   ICH_BIT2              0x00002000      /* bit 2 slot 12 */
 191 #define   ICH_BIT1              0x00001000      /* bit 1 slot 12 */
 192 #define   ICH_SRI               0x00000800      /* secondary (AC_SDIN1) resume interrupt */
 193 #define   ICH_PRI               0x00000400      /* primary (AC_SDIN0) resume interrupt */
 194 #define   ICH_SCR               0x00000200      /* secondary (AC_SDIN1) codec ready */
 195 #define   ICH_PCR               0x00000100      /* primary (AC_SDIN0) codec ready */
 196 #define   ICH_MCINT             0x00000080      /* MIC capture interrupt */
 197 #define   ICH_POINT             0x00000040      /* playback interrupt */
 198 #define   ICH_PIINT             0x00000020      /* capture interrupt */
 199 #define   ICH_NVSPINT           0x00000010      /* nforce spdif interrupt */
 200 #define   ICH_MOINT             0x00000004      /* modem playback interrupt */
 201 #define   ICH_MIINT             0x00000002      /* modem capture interrupt */
 202 #define   ICH_GSCI              0x00000001      /* GPI status change interrupt */
 203 #define ICH_REG_ACC_SEMA                0x34    /* byte - codec write semaphore */
 204 #define   ICH_CAS               0x01            /* codec access semaphore */
 205 #define ICH_REG_SDM             0x80
 206 #define   ICH_DI2L_MASK         0x000000c0      /* PCM In 2, Mic In 2 data in line */
 207 #define   ICH_DI2L_SHIFT        6
 208 #define   ICH_DI1L_MASK         0x00000030      /* PCM In 1, Mic In 1 data in line */
 209 #define   ICH_DI1L_SHIFT        4
 210 #define   ICH_SE                0x00000008      /* steer enable */
 211 #define   ICH_LDI_MASK          0x00000003      /* last codec read data input */
 212
 213 #define ICH_MAX_FRAGS           32              /* max hw frags */
 214
 215
 216 /*
 217  * registers for Ali5455
 218  */
 219
 220 /* ALi 5455 busmaster blocks */
 221 DEFINE_REGSET(AL_PI, 0x40);     /* ALi PCM in */
 222 DEFINE_REGSET(AL_PO, 0x50);     /* Ali PCM out */
 223 DEFINE_REGSET(AL_MC, 0x60);     /* Ali Mic in */
 224 DEFINE_REGSET(AL_CDC_SPO, 0x70);        /* Ali Codec SPDIF out */
 225 DEFINE_REGSET(AL_CENTER, 0x80);         /* Ali center out */
 226 DEFINE_REGSET(AL_LFE, 0x90);            /* Ali center out */
 227 DEFINE_REGSET(AL_CLR_SPI, 0xa0);        /* Ali Controller SPDIF in */
 228 DEFINE_REGSET(AL_CLR_SPO, 0xb0);        /* Ali Controller SPDIF out */
 229 DEFINE_REGSET(AL_I2S, 0xc0);    /* Ali I2S in */
 230 DEFINE_REGSET(AL_PI2, 0xd0);    /* Ali PCM2 in */
 231 DEFINE_REGSET(AL_MC2, 0xe0);    /* Ali Mic2 in */
 232
 233 enum {
 234         ICH_REG_ALI_SCR = 0x00,         /* System Control Register */
 235         ICH_REG_ALI_SSR = 0x04,         /* System Status Register  */
 236         ICH_REG_ALI_DMACR = 0x08,       /* DMA Control Register    */
 237         ICH_REG_ALI_FIFOCR1 = 0x0c,     /* FIFO Control Register 1  */
 238         ICH_REG_ALI_INTERFACECR = 0x10, /* Interface Control Register */
 239         ICH_REG_ALI_INTERRUPTCR = 0x14, /* Interrupt control Register */
 240         ICH_REG_ALI_INTERRUPTSR = 0x18, /* Interrupt  Status Register */
 241         ICH_REG_ALI_FIFOCR2 = 0x1c,     /* FIFO Control Register 2   */
 242         ICH_REG_ALI_CPR = 0x20,         /* Command Port Register     */
 243         ICH_REG_ALI_CPR_ADDR = 0x22,    /* ac97 addr write */
 244         ICH_REG_ALI_SPR = 0x24,         /* Status Port Register      */
 245         ICH_REG_ALI_SPR_ADDR = 0x26,    /* ac97 addr read */
 246         ICH_REG_ALI_FIFOCR3 = 0x2c,     /* FIFO Control Register 3  */
 247         ICH_REG_ALI_TTSR = 0x30,        /* Transmit Tag Slot Register */
 248         ICH_REG_ALI_RTSR = 0x34,        /* Receive Tag Slot  Register */
 249         ICH_REG_ALI_CSPSR = 0x38,       /* Command/Status Port Status Register */
 250         ICH_REG_ALI_CAS = 0x3c,         /* Codec Write Semaphore Register */
 251         ICH_REG_ALI_HWVOL = 0xf0,       /* hardware volume control/status */
 252         ICH_REG_ALI_I2SCR = 0xf4,       /* I2S control/status */
 253         ICH_REG_ALI_SPDIFCSR = 0xf8,    /* spdif channel status register  */
 254         ICH_REG_ALI_SPDIFICS = 0xfc,    /* spdif interface control/status  */
 255 };
 256
 257 #define ALI_CAS_SEM_BUSY        0x80000000
 258 #define ALI_CPR_ADDR_SECONDARY  0x100
 259 #define ALI_CPR_ADDR_READ       0x80
 260 #define ALI_CSPSR_CODEC_READY   0x08
 261 #define ALI_CSPSR_READ_OK       0x02
 262 #define ALI_CSPSR_WRITE_OK      0x01
 263
 264 /* interrupts for the whole chip by interrupt status register finish */
 265
 266 #define ALI_INT_MICIN2          (1<<26)
 267 #define ALI_INT_PCMIN2          (1<<25)
 268 #define ALI_INT_I2SIN           (1<<24)
 269 #define ALI_INT_SPDIFOUT        (1<<23) /* controller spdif out INTERRUPT */
 270 #define ALI_INT_SPDIFIN         (1<<22)
 271 #define ALI_INT_LFEOUT          (1<<21)
 272 #define ALI_INT_CENTEROUT       (1<<20)
 273 #define ALI_INT_CODECSPDIFOUT   (1<<19)
 274 #define ALI_INT_MICIN           (1<<18)
 275 #define ALI_INT_PCMOUT          (1<<17)
 276 #define ALI_INT_PCMIN           (1<<16)
 277 #define ALI_INT_CPRAIS          (1<<7)  /* command port available */
 278 #define ALI_INT_SPRAIS          (1<<5)  /* status port available */
 279 #define ALI_INT_GPIO            (1<<1)
 280 #define ALI_INT_MASK            (ALI_INT_SPDIFOUT|ALI_INT_CODECSPDIFOUT|\
 281                                  ALI_INT_MICIN|ALI_INT_PCMOUT|ALI_INT_PCMIN)
 282
 283 #define ICH_ALI_SC_RESET        (1<<31) /* master reset */
 284 #define ICH_ALI_SC_AC97_DBL     (1<<30)
 285 #define ICH_ALI_SC_CODEC_SPDF   (3<<20) /* 1=7/8, 2=6/9, 3=10/11 */
 286 #define ICH_ALI_SC_IN_BITS      (3<<18)
 287 #define ICH_ALI_SC_OUT_BITS     (3<<16)
 288 #define ICH_ALI_SC_6CH_CFG      (3<<14)
 289 #define ICH_ALI_SC_PCM_4        (1<<8)
 290 #define ICH_ALI_SC_PCM_6        (2<<8)
 291 #define ICH_ALI_SC_PCM_246_MASK (3<<8)
 292
 293 #define ICH_ALI_SS_SEC_ID       (3<<5)
 294 #define ICH_ALI_SS_PRI_ID       (3<<3)
 295
 296 #define ICH_ALI_IF_AC97SP       (1<<21)
 297 #define ICH_ALI_IF_MC           (1<<20)
 298 #define ICH_ALI_IF_PI           (1<<19)
 299 #define ICH_ALI_IF_MC2          (1<<18)
 300 #define ICH_ALI_IF_PI2          (1<<17)
 301 #define ICH_ALI_IF_LINE_SRC     (1<<15) /* 0/1 = slot 3/6 */
 302 #define ICH_ALI_IF_MIC_SRC      (1<<14) /* 0/1 = slot 3/6 */
 303 #define ICH_ALI_IF_SPDF_SRC     (3<<12) /* 00 = PCM, 01 = AC97-in, 10 = spdif-in, 11 = i2s */
 304 #define ICH_ALI_IF_AC97_OUT     (3<<8)  /* 00 = PCM, 10 = spdif-in, 11 = i2s */
 305 #define ICH_ALI_IF_PO_SPDF      (1<<3)
 306 #define ICH_ALI_IF_PO           (1<<1)
 307
 308 /*
 309  *
 310  */
 311
 312 enum {
 313         ICHD_PCMIN,
 314         ICHD_PCMOUT,
 315         ICHD_MIC,
 316         ICHD_MIC2,
 317         ICHD_PCM2IN,
 318         ICHD_SPBAR,
 319         ICHD_LAST = ICHD_SPBAR
 320 };
 321 enum {
 322         NVD_PCMIN,
 323         NVD_PCMOUT,
 324         NVD_MIC,
 325         NVD_SPBAR,
 326         NVD_LAST = NVD_SPBAR
 327 };
 328 enum {
 329         ALID_PCMIN,
 330         ALID_PCMOUT,
 331         ALID_MIC,
 332         ALID_AC97SPDIFOUT,
 333         ALID_SPDIFIN,
 334         ALID_SPDIFOUT,
 335         ALID_LAST = ALID_SPDIFOUT
 336 };
 337
 338 #define get_ichdev(substream) (substream->runtime->private_data)
 339
 340 struct ichdev {
 341         unsigned int ichd;                      /* ich device number */
 342         unsigned long reg_offset;               /* offset to bmaddr */
 343         u32 *bdbar;                             /* CPU address (32bit) */
 344         unsigned int bdbar_addr;                /* PCI bus address (32bit) */
 345         struct snd_pcm_substream *substream;
 346         unsigned int physbuf;                   /* physical address (32bit) */
 347         unsigned int size;
 348         unsigned int fragsize;
 349         unsigned int fragsize1;
 350         unsigned int position;
 351         unsigned int pos_shift;
 352         int frags;
 353         int lvi;
 354         int lvi_frag;
 355         int civ;
 356         int ack;
 357         int ack_reload;
 358         unsigned int ack_bit;
 359         unsigned int roff_sr;
 360         unsigned int roff_picb;
 361         unsigned int int_sta_mask;              /* interrupt status mask */
 362         unsigned int ali_slot;                  /* ALI DMA slot */
 363         struct ac97_pcm *pcm;
 364         int pcm_open_flag;
 365         unsigned int page_attr_changed: 1;
 366         unsigned int suspended: 1;
 367 };
 368
 369 struct intel8x0 {
 370         unsigned int device_type;
 371
 372         int irq;
 373
 374         void __iomem *addr;
 375         void __iomem *bmaddr;
 376
 377         struct pci_dev *pci;
 378         struct snd_card *card;
 379
 380         int pcm_devs;
 381         struct snd_pcm *pcm[6];
 382         struct ichdev ichd[6];
 383
 384         unsigned multi4: 1,
 385                  multi6: 1,
 386                  dra: 1,
 387                  smp20bit: 1;
 388         unsigned in_ac97_init: 1,
 389                  in_sdin_init: 1;
 390         unsigned in_measurement: 1;     /* during ac97 clock measurement */
 391         unsigned fix_nocache: 1;        /* workaround for 440MX */
 392         unsigned buggy_irq: 1;          /* workaround for buggy mobos */
 393         unsigned xbox: 1;               /* workaround for Xbox AC'97 detection */
 394         unsigned buggy_semaphore: 1;    /* workaround for buggy codec semaphore */
 395
 396         int spdif_idx;  /* SPDIF BAR index; *_SPBAR or -1 if use PCMOUT */
 397         unsigned int sdm_saved; /* SDM reg value */
 398
 399         struct snd_ac97_bus *ac97_bus;
 400         struct snd_ac97 *ac97[3];
 401         unsigned int ac97_sdin[3];
 402         unsigned int max_codecs, ncodecs;
 403         unsigned int *codec_bit;
 404         unsigned int codec_isr_bits;
 405         unsigned int codec_ready_bits;
 406
 407         spinlock_t reg_lock;
 408
 409         u32 bdbars_count;
 410         struct snd_dma_buffer bdbars;
 411         u32 int_sta_reg;                /* interrupt status register */
 412         u32 int_sta_mask;               /* interrupt status mask */
 413 };
 414
 415 static struct pci_device_id snd_intel8x0_ids[] = {
 416         { 0x8086, 0x2415, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL }, /* 82801AA */
 417         { 0x8086, 0x2425, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL }, /* 82901AB */
 418         { 0x8086, 0x2445, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL }, /* 82801BA */
 419         { 0x8086, 0x2485, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL }, /* ICH3 */
 420         { 0x8086, 0x24c5, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL_ICH4 }, /* ICH4 */
 421         { 0x8086, 0x24d5, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL_ICH4 }, /* ICH5 */
 422         { 0x8086, 0x25a6, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL_ICH4 }, /* ESB */
 423         { 0x8086, 0x266e, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL_ICH4 }, /* ICH6 */
 424         { 0x8086, 0x27de, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL_ICH4 }, /* ICH7 */
 425         { 0x8086, 0x2698, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL_ICH4 }, /* ESB2 */
 426         { 0x8086, 0x7195, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL }, /* 440MX */
 427         { 0x1039, 0x7012, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_SIS },   /* SI7012 */
 428         { 0x10de, 0x01b1, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_NFORCE },        /* NFORCE */
 429         { 0x10de, 0x003a, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_NFORCE },        /* MCP04 */
 430         { 0x10de, 0x006a, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_NFORCE },        /* NFORCE2 */
 431         { 0x10de, 0x0059, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_NFORCE },        /* CK804 */
 432         { 0x10de, 0x008a, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_NFORCE },        /* CK8 */
 433         { 0x10de, 0x00da, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_NFORCE },        /* NFORCE3 */
 434         { 0x10de, 0x00ea, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_NFORCE },        /* CK8S */
 435         { 0x10de, 0x026b, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_NFORCE },        /* MCP51 */
 436         { 0x1022, 0x746d, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL }, /* AMD8111 */
 437         { 0x1022, 0x7445, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL }, /* AMD768 */
 438         { 0x10b9, 0x5455, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_ALI },   /* Ali5455 */
 439         { 0, }
 440 };
 441
 442 MODULE_DEVICE_TABLE(pci, snd_intel8x0_ids);
 443
 444 /*
 445  *  Lowlevel I/O - busmaster
 446  */
 447
 448 static inline u8 igetbyte(struct intel8x0 *chip, u32 offset)
 449 {
 450         return ioread8(chip->bmaddr + offset);
 451 }
 452
 453 static inline u16 igetword(struct intel8x0 *chip, u32 offset)
 454 {
 455         return ioread16(chip->bmaddr + offset);
 456 }
 457
 458 static inline u32 igetdword(struct intel8x0 *chip, u32 offset)
 459 {
 460         return ioread32(chip->bmaddr + offset);
 461 }
 462
 463 static inline void iputbyte(struct intel8x0 *chip, u32 offset, u8 val)
 464 {
 465         iowrite8(val, chip->bmaddr + offset);
 466 }
 467
 468 static inline void iputword(struct intel8x0 *chip, u32 offset, u16 val)
 469 {
 470         iowrite16(val, chip->bmaddr + offset);
 471 }
 472
 473 static inline void iputdword(struct intel8x0 *chip, u32 offset, u32 val)
 474 {
 475         iowrite32(val, chip->bmaddr + offset);
 476 }
 477
 478 /*
 479  *  Lowlevel I/O - AC'97 registers
 480  */
 481
 482 static inline u16 iagetword(struct intel8x0 *chip, u32 offset)
 483 {
 484         return ioread16(chip->addr + offset);
 485 }
 486
 487 static inline void iaputword(struct intel8x0 *chip, u32 offset, u16 val)
 488 {
 489         iowrite16(val, chip->addr + offset);
 490 }
 491
 492 /*
 493  *  Basic I/O
 494  */
 495
 496 /*
 497  * access to AC97 codec via normal i/o (for ICH and SIS7012)
 498  */
 499
 500 static int snd_intel8x0_codec_semaphore(struct intel8x0 *chip, unsigned int codec)
 501 {
 502         int time;
 503
 504         if (codec > 2)
 505                 return -EIO;
 506         if (chip->in_sdin_init) {
 507                 /* we don't know the ready bit assignment at the moment */
 508                 /* so we check any */
 509                 codec = chip->codec_isr_bits;
 510         } else {
 511                 codec = chip->codec_bit[chip->ac97_sdin[codec]];
 512         }
 513
 514         /* codec ready ? */
 515         if ((igetdword(chip, ICHREG(GLOB_STA)) & codec) == 0)
 516                 return -EIO;
 517
 518         if (chip->buggy_semaphore)
 519                 return 0; /* just ignore ... */
 520
 521         /* Anyone holding a semaphore for 1 msec should be shot... */
 522         time = 100;
 523         do {
 524                 if (!(igetbyte(chip, ICHREG(ACC_SEMA)) & ICH_CAS))
 525                         return 0;
 526                 udelay(10);
 527         } while (time--);
 528
 529         /* access to some forbidden (non existant) ac97 registers will not
 530          * reset the semaphore. So even if you don't get the semaphore, still
 531          * continue the access. We don't need the semaphore anyway. */
 532         snd_printk(KERN_ERR "codec_semaphore: semaphore is not ready [0x%x][0x%x]\n",
 533                         igetbyte(chip, ICHREG(ACC_SEMA)), igetdword(chip, ICHREG(GLOB_STA)));
 534         iagetword(chip, 0);     /* clear semaphore flag */
 535         /* I don't care about the semaphore */
 536         return -EBUSY;
 537 }
 538
 539 static void snd_intel8x0_codec_write(struct snd_ac97 *ac97,
 540                                      unsigned short reg,
 541                                      unsigned short val)
 542 {
 543         struct intel8x0 *chip = ac97->private_data;
 544
 545         if (snd_intel8x0_codec_semaphore(chip, ac97->num) < 0) {
 546                 if (! chip->in_ac97_init)
 547                         snd_printk(KERN_ERR "codec_write %d: semaphore is not ready for register 0x%x\n", ac97->num, reg);
 548         }
 549         iaputword(chip, reg + ac97->num * 0x80, val);
 550 }
 551
 552 static unsigned short snd_intel8x0_codec_read(struct snd_ac97 *ac97,
 553                                               unsigned short reg)
 554 {
 555         struct intel8x0 *chip = ac97->private_data;
 556         unsigned short res;
 557         unsigned int tmp;
 558
 559         if (snd_intel8x0_codec_semaphore(chip, ac97->num) < 0) {
 560                 if (! chip->in_ac97_init)
 561                         snd_printk(KERN_ERR "codec_read %d: semaphore is not ready for register 0x%x\n", ac97->num, reg);
 562                 res = 0xffff;
 563         } else {
 564                 res = iagetword(chip, reg + ac97->num * 0x80);
 565                 if ((tmp = igetdword(chip, ICHREG(GLOB_STA))) & ICH_RCS) {
 566                         /* reset RCS and preserve other R/WC bits */
 567                         iputdword(chip, ICHREG(GLOB_STA), tmp &
 568                                   ~(chip->codec_ready_bits | ICH_GSCI));
 569                         if (! chip->in_ac97_init)
 570                                 snd_printk(KERN_ERR "codec_read %d: read timeout for register 0x%x\n", ac97->num, reg);
 571                         res = 0xffff;
 572                 }
 573         }
 574         return res;
 575 }
 576
 577 static void __devinit snd_intel8x0_codec_read_test(struct intel8x0 *chip,
 578                                                    unsigned int codec)
 579 {
 580         unsigned int tmp;
 581
 582         if (snd_intel8x0_codec_semaphore(chip, codec) >= 0) {
 583                 iagetword(chip, codec * 0x80);
 584                 if ((tmp = igetdword(chip, ICHREG(GLOB_STA))) & ICH_RCS) {
 585                         /* reset RCS and preserve other R/WC bits */
 586                         iputdword(chip, ICHREG(GLOB_STA), tmp &
 587                                   ~(chip->codec_ready_bits | ICH_GSCI));
 588                 }
 589         }
 590 }
 591
 592 /*
 593  * access to AC97 for Ali5455
 594  */
 595 static int snd_intel8x0_ali_codec_ready(struct intel8x0 *chip, int mask)
 596 {
 597         int count = 0;
 598         for (count = 0; count < 0x7f; count++) {
 599                 int val = igetbyte(chip, ICHREG(ALI_CSPSR));
 600                 if (val & mask)
 601                         return 0;
 602         }
 603         if (! chip->in_ac97_init)
 604                 snd_printd(KERN_WARNING "intel8x0: AC97 codec ready timeout.\n");
 605         return -EBUSY;
 606 }
 607
 608 static int snd_intel8x0_ali_codec_semaphore(struct intel8x0 *chip)
 609 {
 610         int time = 100;
 611         if (chip->buggy_semaphore)
 612                 return 0; /* just ignore ... */
 613         while (time-- && (igetdword(chip, ICHREG(ALI_CAS)) & ALI_CAS_SEM_BUSY))
 614                 udelay(1);
 615         if (! time && ! chip->in_ac97_init)
 616                 snd_printk(KERN_WARNING "ali_codec_semaphore timeout\n");
 617         return snd_intel8x0_ali_codec_ready(chip, ALI_CSPSR_CODEC_READY);
 618 }
 619
 620 static unsigned short snd_intel8x0_ali_codec_read(struct snd_ac97 *ac97, unsigned short reg)
 621 {
 622         struct intel8x0 *chip = ac97->private_data;
 623         unsigned short data = 0xffff;
 624
 625         if (snd_intel8x0_ali_codec_semaphore(chip))
 626                 goto __err;
 627         reg |= ALI_CPR_ADDR_READ;
 628         if (ac97->num)
 629                 reg |= ALI_CPR_ADDR_SECONDARY;
 630         iputword(chip, ICHREG(ALI_CPR_ADDR), reg);
 631         if (snd_intel8x0_ali_codec_ready(chip, ALI_CSPSR_READ_OK))
 632                 goto __err;
 633         data = igetword(chip, ICHREG(ALI_SPR));
 634  __err:
 635         return data;
 636 }
 637
 638 static void snd_intel8x0_ali_codec_write(struct snd_ac97 *ac97, unsigned short reg,
 639                                          unsigned short val)
 640 {
 641         struct intel8x0 *chip = ac97->private_data;
 642
 643         if (snd_intel8x0_ali_codec_semaphore(chip))
 644                 return;
 645         iputword(chip, ICHREG(ALI_CPR), val);
 646         if (ac97->num)
 647                 reg |= ALI_CPR_ADDR_SECONDARY;
 648         iputword(chip, ICHREG(ALI_CPR_ADDR), reg);
 649         snd_intel8x0_ali_codec_ready(chip, ALI_CSPSR_WRITE_OK);
 650 }
 651
 652
 653 /*
 654  * DMA I/O
 655  */
 656 static void snd_intel8x0_setup_periods(struct intel8x0 *chip, struct ichdev *ichdev)
 657 {
 658         int idx;
 659         u32 *bdbar = ichdev->bdbar;
 660         unsigned long port = ichdev->reg_offset;
 661
 662         iputdword(chip, port + ICH_REG_OFF_BDBAR, ichdev->bdbar_addr);
 663         if (ichdev->size == ichdev->fragsize) {
 664                 ichdev->ack_reload = ichdev->ack = 2;
 665                 ichdev->fragsize1 = ichdev->fragsize >> 1;
 666                 for (idx = 0; idx < (ICH_REG_LVI_MASK + 1) * 2; idx += 4) {
 667                         bdbar[idx + 0] = cpu_to_le32(ichdev->physbuf);
 668                         bdbar[idx + 1] = cpu_to_le32(0x80000000 | /* interrupt on completion */
 669                                                      ichdev->fragsize1 >> ichdev->pos_shift);
 670                         bdbar[idx + 2] = cpu_to_le32(ichdev->physbuf + (ichdev->size >> 1));
 671                         bdbar[idx + 3] = cpu_to_le32(0x80000000 | /* interrupt on completion */
 672                                                      ichdev->fragsize1 >> ichdev->pos_shift);
 673                 }
 674                 ichdev->frags = 2;
 675         } else {
 676                 ichdev->ack_reload = ichdev->ack = 1;
 677                 ichdev->fragsize1 = ichdev->fragsize;
 678                 for (idx = 0; idx < (ICH_REG_LVI_MASK + 1) * 2; idx += 2) {
 679                         bdbar[idx + 0] = cpu_to_le32(ichdev->physbuf +
 680                                                      (((idx >> 1) * ichdev->fragsize) %
 681                                                       ichdev->size));
 682                         bdbar[idx + 1] = cpu_to_le32(0x80000000 | /* interrupt on completion */
 683                                                      ichdev->fragsize >> ichdev->pos_shift);
 684 #if 0
 685                         printk("bdbar[%i] = 0x%x [0x%x]\n",
 686                                idx + 0, bdbar[idx + 0], bdbar[idx + 1]);
 687 #endif
 688                 }
 689                 ichdev->frags = ichdev->size / ichdev->fragsize;
 690         }
 691         iputbyte(chip, port + ICH_REG_OFF_LVI, ichdev->lvi = ICH_REG_LVI_MASK);
 692         ichdev->civ = 0;
 693         iputbyte(chip, port + ICH_REG_OFF_CIV, 0);
 694         ichdev->lvi_frag = ICH_REG_LVI_MASK % ichdev->frags;
 695         ichdev->position = 0;
 696 #if 0
 697         printk("lvi_frag = %i, frags = %i, period_size = 0x%x, period_size1 = 0x%x\n",
 698                         ichdev->lvi_frag, ichdev->frags, ichdev->fragsize, ichdev->fragsize1);
 699 #endif
 700         /* clear interrupts */
 701         iputbyte(chip, port + ichdev->roff_sr, ICH_FIFOE | ICH_BCIS | ICH_LVBCI);
 702 }
 703
 704 #ifdef __i386__
 705 /*
 706  * Intel 82443MX running a 100MHz processor system bus has a hardware bug,
 707  * which aborts PCI busmaster for audio transfer.  A workaround is to set
 708  * the pages as non-cached.  For details, see the errata in
 709  *      http://www.intel.com/design/chipsets/specupdt/245051.htm
 710  */
 711 static void fill_nocache(void *buf, int size, int nocache)
 712 {
 713         size = (size + PAGE_SIZE - 1) >> PAGE_SHIFT;
 714         change_page_attr(virt_to_page(buf), size, nocache ? PAGE_KERNEL_NOCACHE : PAGE_KERNEL);
 715         global_flush_tlb();
 716 }
 717 #else
 718 #define fill_nocache(buf,size,nocache)
 719 #endif
 720
 721 /*
 722  *  Interrupt handler
 723  */
 724
 725 static inline void snd_intel8x0_update(struct intel8x0 *chip, struct ichdev *ichdev)
 726 {
 727         unsigned long port = ichdev->reg_offset;
 728         unsigned long flags;
 729         int status, civ, i, step;
 730         int ack = 0;
 731
 732         spin_lock_irqsave(&chip->reg_lock, flags);
 733         status = igetbyte(chip, port + ichdev->roff_sr);
 734         civ = igetbyte(chip, port + ICH_REG_OFF_CIV);
 735         if (!(status & ICH_BCIS)) {
 736                 step = 0;
 737         } else if (civ == ichdev->civ) {
 738                 // snd_printd("civ same %d\n", civ);
 739                 step = 1;
 740                 ichdev->civ++;
 741                 ichdev->civ &= ICH_REG_LVI_MASK;
 742         } else {
 743                 step = civ - ichdev->civ;
 744                 if (step < 0)
 745                         step += ICH_REG_LVI_MASK + 1;
 746                 // if (step != 1)
 747                 //      snd_printd("step = %d, %d -> %d\n", step, ichdev->civ, civ);
 748                 ichdev->civ = civ;
 749         }
 750
 751         ichdev->position += step * ichdev->fragsize1;
 752         if (! chip->in_measurement)
 753                 ichdev->position %= ichdev->size;
 754         ichdev->lvi += step;
 755         ichdev->lvi &= ICH_REG_LVI_MASK;
 756         iputbyte(chip, port + ICH_REG_OFF_LVI, ichdev->lvi);
 757         for (i = 0; i < step; i++) {
 758                 ichdev->lvi_frag++;
 759                 ichdev->lvi_frag %= ichdev->frags;
 760                 ichdev->bdbar[ichdev->lvi * 2] = cpu_to_le32(ichdev->physbuf + ichdev->lvi_frag * ichdev->fragsize1);
 761 #if 0
 762         printk("new: bdbar[%i] = 0x%x [0x%x], prefetch = %i, all = 0x%x, 0x%x\n",
 763                ichdev->lvi * 2, ichdev->bdbar[ichdev->lvi * 2],
 764                ichdev->bdbar[ichdev->lvi * 2 + 1], inb(ICH_REG_OFF_PIV + port),
 765                inl(port + 4), inb(port + ICH_REG_OFF_CR));
 766 #endif
 767                 if (--ichdev->ack == 0) {
 768                         ichdev->ack = ichdev->ack_reload;
 769                         ack = 1;
 770                 }
 771         }
 772         spin_unlock_irqrestore(&chip->reg_lock, flags);
 773         if (ack && ichdev->substream) {
 774                 snd_pcm_period_elapsed(ichdev->substream);
 775         }
 776         iputbyte(chip, port + ichdev->roff_sr,
 777                  status & (ICH_FIFOE | ICH_BCIS | ICH_LVBCI));
 778 }
 779
 780 static irqreturn_t snd_intel8x0_interrupt(int irq, void *dev_id)
 781 {
 782         struct intel8x0 *chip = dev_id;
 783         struct ichdev *ichdev;
 784         unsigned int status;
 785         unsigned int i;
 786
 787         status = igetdword(chip, chip->int_sta_reg);
 788         if (status == 0xffffffff)       /* we are not yet resumed */
 789                 return IRQ_NONE;
 790
 791         if ((status & chip->int_sta_mask) == 0) {
 792                 if (status) {
 793                         /* ack */
 794                         iputdword(chip, chip->int_sta_reg, status);
 795                         if (! chip->buggy_irq)
 796                                 status = 0;
 797                 }
 798                 return IRQ_RETVAL(status);
 799         }
 800
 801         for (i = 0; i < chip->bdbars_count; i++) {
 802                 ichdev = &chip->ichd[i];
 803                 if (status & ichdev->int_sta_mask)
 804                         snd_intel8x0_update(chip, ichdev);
 805         }
 806
 807         /* ack them */
 808         iputdword(chip, chip->int_sta_reg, status & chip->int_sta_mask);
 809
 810         return IRQ_HANDLED;
 811 }
 812
 813 /*
 814  *  PCM part
 815  */
 816
 817 static int snd_intel8x0_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
 818 {
 819         struct intel8x0 *chip = snd_pcm_substream_chip(substream);
 820         struct ichdev *ichdev = get_ichdev(substream);
 821         unsigned char val = 0;
 822         unsigned long port = ichdev->reg_offset;
 823
 824         switch (cmd) {
 825         case SNDRV_PCM_TRIGGER_RESUME:
 826                 ichdev->suspended = 0;
 827                 /* fallthru */
 828         case SNDRV_PCM_TRIGGER_START:
 829                 val = ICH_IOCE | ICH_STARTBM;
 830                 break;
 831         case SNDRV_PCM_TRIGGER_SUSPEND:
 832                 ichdev->suspended = 1;
 833                 /* fallthru */
 834         case SNDRV_PCM_TRIGGER_STOP:
 835                 val = 0;
 836                 break;
 837         case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
 838                 val = ICH_IOCE;
 839                 break;
 840         case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
 841                 val = ICH_IOCE | ICH_STARTBM;
 842                 break;
 843         default:
 844                 return -EINVAL;
 845         }
 846         iputbyte(chip, port + ICH_REG_OFF_CR, val);
 847         if (cmd == SNDRV_PCM_TRIGGER_STOP) {
 848                 /* wait until DMA stopped */
 849                 while (!(igetbyte(chip, port + ichdev->roff_sr) & ICH_DCH)) ;
 850                 /* reset whole DMA things */
 851                 iputbyte(chip, port + ICH_REG_OFF_CR, ICH_RESETREGS);
 852         }
 853         return 0;
 854 }
 855
 856 static int snd_intel8x0_ali_trigger(struct snd_pcm_substream *substream, int cmd)
 857 {
 858         struct intel8x0 *chip = snd_pcm_substream_chip(substream);
 859         struct ichdev *ichdev = get_ichdev(substream);
 860         unsigned long port = ichdev->reg_offset;
 861         static int fiforeg[] = {
 862                 ICHREG(ALI_FIFOCR1), ICHREG(ALI_FIFOCR2), ICHREG(ALI_FIFOCR3)
 863         };
 864         unsigned int val, fifo;
 865
 866         val = igetdword(chip, ICHREG(ALI_DMACR));
 867         switch (cmd) {
 868         case SNDRV_PCM_TRIGGER_RESUME:
 869                 ichdev->suspended = 0;
 870                 /* fallthru */
 871         case SNDRV_PCM_TRIGGER_START:
 872         case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
 873                 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
 874                         /* clear FIFO for synchronization of channels */
 875                         fifo = igetdword(chip, fiforeg[ichdev->ali_slot / 4]);
 876                         fifo &= ~(0xff << (ichdev->ali_slot % 4));
 877                         fifo |= 0x83 << (ichdev->ali_slot % 4);
 878                         iputdword(chip, fiforeg[ichdev->ali_slot / 4], fifo);
 879                 }
 880                 iputbyte(chip, port + ICH_REG_OFF_CR, ICH_IOCE);
 881                 val &= ~(1 << (ichdev->ali_slot + 16)); /* clear PAUSE flag */
 882                 /* start DMA */
 883                 iputdword(chip, ICHREG(ALI_DMACR), val | (1 << ichdev->ali_slot));
 884                 break;
 885         case SNDRV_PCM_TRIGGER_SUSPEND:
 886                 ichdev->suspended = 1;
 887                 /* fallthru */
 888         case SNDRV_PCM_TRIGGER_STOP:
 889         case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
 890                 /* pause */
 891                 iputdword(chip, ICHREG(ALI_DMACR), val | (1 << (ichdev->ali_slot + 16)));
 892                 iputbyte(chip, port + ICH_REG_OFF_CR, 0);
 893                 while (igetbyte(chip, port + ICH_REG_OFF_CR))
 894                         ;
 895                 if (cmd == SNDRV_PCM_TRIGGER_PAUSE_PUSH)
 896                         break;
 897                 /* reset whole DMA things */
 898                 iputbyte(chip, port + ICH_REG_OFF_CR, ICH_RESETREGS);
 899                 /* clear interrupts */
 900                 iputbyte(chip, port + ICH_REG_OFF_SR,
 901                          igetbyte(chip, port + ICH_REG_OFF_SR) | 0x1e);
 902                 iputdword(chip, ICHREG(ALI_INTERRUPTSR),
 903                           igetdword(chip, ICHREG(ALI_INTERRUPTSR)) & ichdev->int_sta_mask);
 904                 break;
 905         default:
 906                 return -EINVAL;
 907         }
 908         return 0;
 909 }
 910
 911 static int snd_intel8x0_hw_params(struct snd_pcm_substream *substream,
 912                                   struct snd_pcm_hw_params *hw_params)
 913 {
 914         struct intel8x0 *chip = snd_pcm_substream_chip(substream);
 915         struct ichdev *ichdev = get_ichdev(substream);
 916         struct snd_pcm_runtime *runtime = substream->runtime;
 917         int dbl = params_rate(hw_params) > 48000;
 918         int err;
 919
 920         if (chip->fix_nocache && ichdev->page_attr_changed) {
 921                 fill_nocache(runtime->dma_area, runtime->dma_bytes, 0); /* clear */
 922                 ichdev->page_attr_changed = 0;
 923         }
 924         err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
 925         if (err < 0)
 926                 return err;
 927         if (chip->fix_nocache) {
 928                 if (runtime->dma_area && ! ichdev->page_attr_changed) {
 929                         fill_nocache(runtime->dma_area, runtime->dma_bytes, 1);
 930                         ichdev->page_attr_changed = 1;
 931                 }
 932         }
 933         if (ichdev->pcm_open_flag) {
 934                 snd_ac97_pcm_close(ichdev->pcm);
 935                 ichdev->pcm_open_flag = 0;
 936         }
 937         err = snd_ac97_pcm_open(ichdev->pcm, params_rate(hw_params),
 938                                 params_channels(hw_params),
 939                                 ichdev->pcm->r[dbl].slots);
 940         if (err >= 0) {
 941                 ichdev->pcm_open_flag = 1;
 942                 /* Force SPDIF setting */
 943                 if (ichdev->ichd == ICHD_PCMOUT && chip->spdif_idx < 0)
 944                         snd_ac97_set_rate(ichdev->pcm->r[0].codec[0], AC97_SPDIF,
 945                                           params_rate(hw_params));
 946         }
 947         return err;
 948 }
 949
 950 static int snd_intel8x0_hw_free(struct snd_pcm_substream *substream)
 951 {
 952         struct intel8x0 *chip = snd_pcm_substream_chip(substream);
 953         struct ichdev *ichdev = get_ichdev(substream);
 954
 955         if (ichdev->pcm_open_flag) {
 956                 snd_ac97_pcm_close(ichdev->pcm);
 957                 ichdev->pcm_open_flag = 0;
 958         }
 959         if (chip->fix_nocache && ichdev->page_attr_changed) {
 960                 fill_nocache(substream->runtime->dma_area, substream->runtime->dma_bytes, 0);
 961                 ichdev->page_attr_changed = 0;
 962         }
 963         return snd_pcm_lib_free_pages(substream);
 964 }
 965
 966 static void snd_intel8x0_setup_pcm_out(struct intel8x0 *chip,
 967                                        struct snd_pcm_runtime *runtime)
 968 {
 969         unsigned int cnt;
 970         int dbl = runtime->rate > 48000;
 971
 972         spin_lock_irq(&chip->reg_lock);
 973         switch (chip->device_type) {
 974         case DEVICE_ALI:
 975                 cnt = igetdword(chip, ICHREG(ALI_SCR));
 976                 cnt &= ~ICH_ALI_SC_PCM_246_MASK;
 977                 if (runtime->channels == 4 || dbl)
 978                         cnt |= ICH_ALI_SC_PCM_4;
 979                 else if (runtime->channels == 6)
 980                         cnt |= ICH_ALI_SC_PCM_6;
 981                 iputdword(chip, ICHREG(ALI_SCR), cnt);
 982                 break;
 983         case DEVICE_SIS:
 984                 cnt = igetdword(chip, ICHREG(GLOB_CNT));
 985                 cnt &= ~ICH_SIS_PCM_246_MASK;
 986                 if (runtime->channels == 4 || dbl)
 987                         cnt |= ICH_SIS_PCM_4;
 988                 else if (runtime->channels == 6)
 989                         cnt |= ICH_SIS_PCM_6;
 990                 iputdword(chip, ICHREG(GLOB_CNT), cnt);
 991                 break;
 992         default:
 993                 cnt = igetdword(chip, ICHREG(GLOB_CNT));
 994                 cnt &= ~(ICH_PCM_246_MASK | ICH_PCM_20BIT);
 995                 if (runtime->channels == 4 || dbl)
 996                         cnt |= ICH_PCM_4;
 997                 else if (runtime->channels == 6)
 998                         cnt |= ICH_PCM_6;
 999                 if (chip->device_type == DEVICE_NFORCE) {
1000                         /* reset to 2ch once to keep the 6 channel data in alignment,
1001                          * to start from Front Left always
1002                          */
1003                         if (cnt & ICH_PCM_246_MASK) {
1004                                 iputdword(chip, ICHREG(GLOB_CNT), cnt & ~ICH_PCM_246_MASK);
1005                                 spin_unlock_irq(&chip->reg_lock);
1006                                 msleep(50); /* grrr... */
1007                                 spin_lock_irq(&chip->reg_lock);
1008                         }
1009                 } else if (chip->device_type == DEVICE_INTEL_ICH4) {
1010                         if (runtime->sample_bits > 16)
1011                                 cnt |= ICH_PCM_20BIT;
1012                 }
1013                 iputdword(chip, ICHREG(GLOB_CNT), cnt);
1014                 break;
1015         }
1016         spin_unlock_irq(&chip->reg_lock);
1017 }
1018
1019 static int snd_intel8x0_pcm_prepare(struct snd_pcm_substream *substream)
1020 {
1021         struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1022         struct snd_pcm_runtime *runtime = substream->runtime;
1023         struct ichdev *ichdev = get_ichdev(substream);
1024
1025         ichdev->physbuf = runtime->dma_addr;
1026         ichdev->size = snd_pcm_lib_buffer_bytes(substream);
1027         ichdev->fragsize = snd_pcm_lib_period_bytes(substream);
1028         if (ichdev->ichd == ICHD_PCMOUT) {
1029                 snd_intel8x0_setup_pcm_out(chip, runtime);
1030                 if (chip->device_type == DEVICE_INTEL_ICH4)
1031                         ichdev->pos_shift = (runtime->sample_bits > 16) ? 2 : 1;
1032         }
1033         snd_intel8x0_setup_periods(chip, ichdev);
1034         return 0;
1035 }
1036
1037 static snd_pcm_uframes_t snd_intel8x0_pcm_pointer(struct snd_pcm_substream *substream)
1038 {
1039         struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1040         struct ichdev *ichdev = get_ichdev(substream);
1041         size_t ptr1, ptr;
1042         int civ, timeout = 100;
1043         unsigned int position;
1044
1045         spin_lock(&chip->reg_lock);
1046         do {
1047                 civ = igetbyte(chip, ichdev->reg_offset + ICH_REG_OFF_CIV);
1048                 ptr1 = igetword(chip, ichdev->reg_offset + ichdev->roff_picb);
1049                 position = ichdev->position;
1050                 if (ptr1 == 0) {
1051                         udelay(10);
1052                         continue;
1053                 }
1054                 if (civ == igetbyte(chip, ichdev->reg_offset + ICH_REG_OFF_CIV) &&
1055                     ptr1 == igetword(chip, ichdev->reg_offset + ichdev->roff_picb))
1056                         break;
1057         } while (timeout--);
1058         ptr1 <<= ichdev->pos_shift;
1059         ptr = ichdev->fragsize1 - ptr1;
1060         ptr += position;
1061         spin_unlock(&chip->reg_lock);
1062         if (ptr >= ichdev->size)
1063                 return 0;
1064         return bytes_to_frames(substream->runtime, ptr);
1065 }
1066
1067 static struct snd_pcm_hardware snd_intel8x0_stream =
1068 {
1069         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1070                                  SNDRV_PCM_INFO_BLOCK_TRANSFER |
1071                                  SNDRV_PCM_INFO_MMAP_VALID |
1072                                  SNDRV_PCM_INFO_PAUSE |
1073                                  SNDRV_PCM_INFO_RESUME),
1074         .formats =              SNDRV_PCM_FMTBIT_S16_LE,
1075         .rates =                SNDRV_PCM_RATE_48000,
1076         .rate_min =             48000,
1077         .rate_max =             48000,
1078         .channels_min =         2,
1079         .channels_max =         2,
1080         .buffer_bytes_max =     128 * 1024,
1081         .period_bytes_min =     32,
1082         .period_bytes_max =     128 * 1024,
1083         .periods_min =          1,
1084         .periods_max =          1024,
1085         .fifo_size =            0,
1086 };
1087
1088 static unsigned int channels4[] = {
1089         2, 4,
1090 };
1091
1092 static struct snd_pcm_hw_constraint_list hw_constraints_channels4 = {
1093         .count = ARRAY_SIZE(channels4),
1094         .list = channels4,
1095         .mask = 0,
1096 };
1097
1098 static unsigned int channels6[] = {
1099         2, 4, 6,
1100 };
1101
1102 static struct snd_pcm_hw_constraint_list hw_constraints_channels6 = {
1103         .count = ARRAY_SIZE(channels6),
1104         .list = channels6,
1105         .mask = 0,
1106 };
1107
1108 static int snd_intel8x0_pcm_open(struct snd_pcm_substream *substream, struct ichdev *ichdev)
1109 {
1110         struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1111         struct snd_pcm_runtime *runtime = substream->runtime;
1112         int err;
1113
1114         ichdev->substream = substream;
1115         runtime->hw = snd_intel8x0_stream;
1116         runtime->hw.rates = ichdev->pcm->rates;
1117         snd_pcm_limit_hw_rates(runtime);
1118         if (chip->device_type == DEVICE_SIS) {
1119                 runtime->hw.buffer_bytes_max = 64*1024;
1120                 runtime->hw.period_bytes_max = 64*1024;
1121         }
1122         if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
1123                 return err;
1124         runtime->private_data = ichdev;
1125         return 0;
1126 }
1127
1128 static int snd_intel8x0_playback_open(struct snd_pcm_substream *substream)
1129 {
1130         struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1131         struct snd_pcm_runtime *runtime = substream->runtime;
1132         int err;
1133
1134         err = snd_intel8x0_pcm_open(substream, &chip->ichd[ICHD_PCMOUT]);
1135         if (err < 0)
1136                 return err;
1137
1138         if (chip->multi6) {
1139                 runtime->hw.channels_max = 6;
1140                 snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
1141                                            &hw_constraints_channels6);
1142         } else if (chip->multi4) {
1143                 runtime->hw.channels_max = 4;
1144                 snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
1145                                            &hw_constraints_channels4);
1146         }
1147         if (chip->dra) {
1148                 snd_ac97_pcm_double_rate_rules(runtime);
1149         }
1150         if (chip->smp20bit) {
1151                 runtime->hw.formats |= SNDRV_PCM_FMTBIT_S32_LE;
1152                 snd_pcm_hw_constraint_msbits(runtime, 0, 32, 20);
1153         }
1154         return 0;
1155 }
1156
1157 static int snd_intel8x0_playback_close(struct snd_pcm_substream *substream)
1158 {
1159         struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1160
1161         chip->ichd[ICHD_PCMOUT].substream = NULL;
1162         return 0;
1163 }
1164
1165 static int snd_intel8x0_capture_open(struct snd_pcm_substream *substream)
1166 {
1167         struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1168
1169         return snd_intel8x0_pcm_open(substream, &chip->ichd[ICHD_PCMIN]);
1170 }
1171
1172 static int snd_intel8x0_capture_close(struct snd_pcm_substream *substream)
1173 {
1174         struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1175
1176         chip->ichd[ICHD_PCMIN].substream = NULL;
1177         return 0;
1178 }
1179
1180 static int snd_intel8x0_mic_open(struct snd_pcm_substream *substream)
1181 {
1182         struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1183
1184         return snd_intel8x0_pcm_open(substream, &chip->ichd[ICHD_MIC]);
1185 }
1186
1187 static int snd_intel8x0_mic_close(struct snd_pcm_substream *substream)
1188 {
1189         struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1190
1191         chip->ichd[ICHD_MIC].substream = NULL;
1192         return 0;
1193 }
1194
1195 static int snd_intel8x0_mic2_open(struct snd_pcm_substream *substream)
1196 {
1197         struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1198
1199         return snd_intel8x0_pcm_open(substream, &chip->ichd[ICHD_MIC2]);
1200 }
1201
1202 static int snd_intel8x0_mic2_close(struct snd_pcm_substream *substream)
1203 {
1204         struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1205
1206         chip->ichd[ICHD_MIC2].substream = NULL;
1207         return 0;
1208 }
1209
1210 static int snd_intel8x0_capture2_open(struct snd_pcm_substream *substream)
1211 {
1212         struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1213
1214         return snd_intel8x0_pcm_open(substream, &chip->ichd[ICHD_PCM2IN]);
1215 }
1216
1217 static int snd_intel8x0_capture2_close(struct snd_pcm_substream *substream)
1218 {
1219         struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1220
1221         chip->ichd[ICHD_PCM2IN].substream = NULL;
1222         return 0;
1223 }
1224
1225 static int snd_intel8x0_spdif_open(struct snd_pcm_substream *substream)
1226 {
1227         struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1228         int idx = chip->device_type == DEVICE_NFORCE ? NVD_SPBAR : ICHD_SPBAR;
1229
1230         return snd_intel8x0_pcm_open(substream, &chip->ichd[idx]);
1231 }
1232
1233 static int snd_intel8x0_spdif_close(struct snd_pcm_substream *substream)
1234 {
1235         struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1236         int idx = chip->device_type == DEVICE_NFORCE ? NVD_SPBAR : ICHD_SPBAR;
1237
1238         chip->ichd[idx].substream = NULL;
1239         return 0;
1240 }
1241
1242 static int snd_intel8x0_ali_ac97spdifout_open(struct snd_pcm_substream *substream)
1243 {
1244         struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1245         unsigned int val;
1246
1247         spin_lock_irq(&chip->reg_lock);
1248         val = igetdword(chip, ICHREG(ALI_INTERFACECR));
1249         val |= ICH_ALI_IF_AC97SP;
1250         iputdword(chip, ICHREG(ALI_INTERFACECR), val);
1251         /* also needs to set ALI_SC_CODEC_SPDF correctly */
1252         spin_unlock_irq(&chip->reg_lock);
1253
1254         return snd_intel8x0_pcm_open(substream, &chip->ichd[ALID_AC97SPDIFOUT]);
1255 }
1256
1257 static int snd_intel8x0_ali_ac97spdifout_close(struct snd_pcm_substream *substream)
1258 {
1259         struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1260         unsigned int val;
1261
1262         chip->ichd[ALID_AC97SPDIFOUT].substream = NULL;
1263         spin_lock_irq(&chip->reg_lock);
1264         val = igetdword(chip, ICHREG(ALI_INTERFACECR));
1265         val &= ~ICH_ALI_IF_AC97SP;
1266         iputdword(chip, ICHREG(ALI_INTERFACECR), val);
1267         spin_unlock_irq(&chip->reg_lock);
1268
1269         return 0;
1270 }
1271
1272 #if 0 // NYI
1273 static int snd_intel8x0_ali_spdifin_open(struct snd_pcm_substream *substream)
1274 {
1275         struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1276
1277         return snd_intel8x0_pcm_open(substream, &chip->ichd[ALID_SPDIFIN]);
1278 }
1279
1280 static int snd_intel8x0_ali_spdifin_close(struct snd_pcm_substream *substream)
1281 {
1282         struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1283
1284         chip->ichd[ALID_SPDIFIN].substream = NULL;
1285         return 0;
1286 }
1287
1288 static int snd_intel8x0_ali_spdifout_open(struct snd_pcm_substream *substream)
1289 {
1290         struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1291
1292         return snd_intel8x0_pcm_open(substream, &chip->ichd[ALID_SPDIFOUT]);
1293 }
1294
1295 static int snd_intel8x0_ali_spdifout_close(struct snd_pcm_substream *substream)
1296 {
1297         struct intel8x0 *chip = snd_pcm_substream_chip(substream);
1298
1299         chip->ichd[ALID_SPDIFOUT].substream = NULL;
1300         return 0;
1301 }
1302 #endif
1303
1304 static struct snd_pcm_ops snd_intel8x0_playback_ops = {
1305         .open =         snd_intel8x0_playback_open,
1306         .close =        snd_intel8x0_playback_close,
1307         .ioctl =        snd_pcm_lib_ioctl,
1308         .hw_params =    snd_intel8x0_hw_params,
1309         .hw_free =      snd_intel8x0_hw_free,
1310         .prepare =      snd_intel8x0_pcm_prepare,
1311         .trigger =      snd_intel8x0_pcm_trigger,
1312         .pointer =      snd_intel8x0_pcm_pointer,
1313 };
1314
1315 static struct snd_pcm_ops snd_intel8x0_capture_ops = {
1316         .open =         snd_intel8x0_capture_open,
1317         .close =        snd_intel8x0_capture_close,
1318         .ioctl =        snd_pcm_lib_ioctl,
1319         .hw_params =    snd_intel8x0_hw_params,
1320         .hw_free =      snd_intel8x0_hw_free,
1321         .prepare =      snd_intel8x0_pcm_prepare,
1322         .trigger =      snd_intel8x0_pcm_trigger,
1323         .pointer =      snd_intel8x0_pcm_pointer,
1324 };
1325
1326 static struct snd_pcm_ops snd_intel8x0_capture_mic_ops = {
1327         .open =         snd_intel8x0_mic_open,
1328         .close =        snd_intel8x0_mic_close,
1329         .ioctl =        snd_pcm_lib_ioctl,
1330         .hw_params =    snd_intel8x0_hw_params,
1331         .hw_free =      snd_intel8x0_hw_free,
1332         .prepare =      snd_intel8x0_pcm_prepare,
1333         .trigger =      snd_intel8x0_pcm_trigger,
1334         .pointer =      snd_intel8x0_pcm_pointer,
1335 };
1336
1337 static struct snd_pcm_ops snd_intel8x0_capture_mic2_ops = {
1338         .open =         snd_intel8x0_mic2_open,
1339         .close =        snd_intel8x0_mic2_close,
1340         .ioctl =        snd_pcm_lib_ioctl,
1341         .hw_params =    snd_intel8x0_hw_params,
1342         .hw_free =      snd_intel8x0_hw_free,
1343         .prepare =      snd_intel8x0_pcm_prepare,
1344         .trigger =      snd_intel8x0_pcm_trigger,
1345         .pointer =      snd_intel8x0_pcm_pointer,
1346 };
1347
1348 static struct snd_pcm_ops snd_intel8x0_capture2_ops = {
1349         .open =         snd_intel8x0_capture2_open,
1350         .close =        snd_intel8x0_capture2_close,
1351         .ioctl =        snd_pcm_lib_ioctl,
1352         .hw_params =    snd_intel8x0_hw_params,
1353         .hw_free =      snd_intel8x0_hw_free,
1354         .prepare =      snd_intel8x0_pcm_prepare,
1355         .trigger =      snd_intel8x0_pcm_trigger,
1356         .pointer =      snd_intel8x0_pcm_pointer,
1357 };
1358
1359 static struct snd_pcm_ops snd_intel8x0_spdif_ops = {
1360         .open =         snd_intel8x0_spdif_open,
1361         .close =        snd_intel8x0_spdif_close,
1362         .ioctl =        snd_pcm_lib_ioctl,
1363         .hw_params =    snd_intel8x0_hw_params,
1364         .hw_free =      snd_intel8x0_hw_free,
1365         .prepare =      snd_intel8x0_pcm_prepare,
1366         .trigger =      snd_intel8x0_pcm_trigger,
1367         .pointer =      snd_intel8x0_pcm_pointer,
1368 };
1369
1370 static struct snd_pcm_ops snd_intel8x0_ali_playback_ops = {
1371         .open =         snd_intel8x0_playback_open,
1372         .close =        snd_intel8x0_playback_close,
1373         .ioctl =        snd_pcm_lib_ioctl,
1374         .hw_params =    snd_intel8x0_hw_params,
1375         .hw_free =      snd_intel8x0_hw_free,
1376         .prepare =      snd_intel8x0_pcm_prepare,
1377         .trigger =      snd_intel8x0_ali_trigger,
1378         .pointer =      snd_intel8x0_pcm_pointer,
1379 };
1380
1381 static struct snd_pcm_ops snd_intel8x0_ali_capture_ops = {
1382         .open =         snd_intel8x0_capture_open,
1383         .close =        snd_intel8x0_capture_close,
1384         .ioctl =        snd_pcm_lib_ioctl,
1385         .hw_params =    snd_intel8x0_hw_params,
1386         .hw_free =      snd_intel8x0_hw_free,
1387         .prepare =      snd_intel8x0_pcm_prepare,
1388         .trigger =      snd_intel8x0_ali_trigger,
1389         .pointer =      snd_intel8x0_pcm_pointer,
1390 };
1391
1392 static struct snd_pcm_ops snd_intel8x0_ali_capture_mic_ops = {
1393         .open =         snd_intel8x0_mic_open,
1394         .close =        snd_intel8x0_mic_close,
1395         .ioctl =        snd_pcm_lib_ioctl,
1396         .hw_params =    snd_intel8x0_hw_params,
1397         .hw_free =      snd_intel8x0_hw_free,
1398         .prepare =      snd_intel8x0_pcm_prepare,
1399         .trigger =      snd_intel8x0_ali_trigger,
1400         .pointer =      snd_intel8x0_pcm_pointer,
1401 };
1402
1403 static struct snd_pcm_ops snd_intel8x0_ali_ac97spdifout_ops = {
1404         .open =         snd_intel8x0_ali_ac97spdifout_open,
1405         .close =        snd_intel8x0_ali_ac97spdifout_close,
1406         .ioctl =        snd_pcm_lib_ioctl,
1407         .hw_params =    snd_intel8x0_hw_params,
1408         .hw_free =      snd_intel8x0_hw_free,
1409         .prepare =      snd_intel8x0_pcm_prepare,
1410         .trigger =      snd_intel8x0_ali_trigger,
1411         .pointer =      snd_intel8x0_pcm_pointer,
1412 };
1413
1414 #if 0 // NYI
1415 static struct snd_pcm_ops snd_intel8x0_ali_spdifin_ops = {
1416         .open =         snd_intel8x0_ali_spdifin_open,
1417         .close =        snd_intel8x0_ali_spdifin_close,
1418         .ioctl =        snd_pcm_lib_ioctl,
1419         .hw_params =    snd_intel8x0_hw_params,
1420         .hw_free =      snd_intel8x0_hw_free,
1421         .prepare =      snd_intel8x0_pcm_prepare,
1422         .trigger =      snd_intel8x0_pcm_trigger,
1423         .pointer =      snd_intel8x0_pcm_pointer,
1424 };
1425
1426 static struct snd_pcm_ops snd_intel8x0_ali_spdifout_ops = {
1427         .open =         snd_intel8x0_ali_spdifout_open,
1428         .close =        snd_intel8x0_ali_spdifout_close,
1429         .ioctl =        snd_pcm_lib_ioctl,
1430         .hw_params =    snd_intel8x0_hw_params,
1431         .hw_free =      snd_intel8x0_hw_free,
1432         .prepare =      snd_intel8x0_pcm_prepare,
1433         .trigger =      snd_intel8x0_pcm_trigger,
1434         .pointer =      snd_intel8x0_pcm_pointer,
1435 };
1436 #endif // NYI
1437
1438 struct ich_pcm_table {
1439         char *suffix;
1440         struct snd_pcm_ops *playback_ops;
1441         struct snd_pcm_ops *capture_ops;
1442         size_t prealloc_size;
1443         size_t prealloc_max_size;
1444         int ac97_idx;
1445 };
1446
1447 static int __devinit snd_intel8x0_pcm1(struct intel8x0 *chip, int device,
1448                                        struct ich_pcm_table *rec)
1449 {
1450         struct snd_pcm *pcm;
1451         int err;
1452         char name[32];
1453
1454         if (rec->suffix)
1455                 sprintf(name, "Intel ICH - %s", rec->suffix);
1456         else
1457                 strcpy(name, "Intel ICH");
1458         err = snd_pcm_new(chip->card, name, device,
1459                           rec->playback_ops ? 1 : 0,
1460                           rec->capture_ops ? 1 : 0, &pcm);
1461         if (err < 0)
1462                 return err;
1463
1464         if (rec->playback_ops)
1465                 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, rec->playback_ops);
1466         if (rec->capture_ops)
1467                 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, rec->capture_ops);
1468
1469         pcm->private_data = chip;
1470         pcm->info_flags = 0;
1471         if (rec->suffix)
1472                 sprintf(pcm->name, "%s - %s", chip->card->shortname, rec->suffix);
1473         else
1474                 strcpy(pcm->name, chip->card->shortname);
1475         chip->pcm[device] = pcm;
1476
1477         snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
1478                                               snd_dma_pci_data(chip->pci),
1479                                               rec->prealloc_size, rec->prealloc_max_size);
1480
1481         return 0;
1482 }
1483
1484 static struct ich_pcm_table intel_pcms[] __devinitdata = {
1485         {
1486                 .playback_ops = &snd_intel8x0_playback_ops,
1487                 .capture_ops = &snd_intel8x0_capture_ops,
1488                 .prealloc_size = 64 * 1024,
1489                 .prealloc_max_size = 128 * 1024,
1490         },
1491         {
1492                 .suffix = "MIC ADC",
1493                 .capture_ops = &snd_intel8x0_capture_mic_ops,
1494                 .prealloc_size = 0,
1495                 .prealloc_max_size = 128 * 1024,
1496                 .ac97_idx = ICHD_MIC,
1497         },
1498         {
1499                 .suffix = "MIC2 ADC",
1500                 .capture_ops = &snd_intel8x0_capture_mic2_ops,
1501                 .prealloc_size = 0,
1502                 .prealloc_max_size = 128 * 1024,
1503                 .ac97_idx = ICHD_MIC2,
1504         },
1505         {
1506                 .suffix = "ADC2",
1507                 .capture_ops = &snd_intel8x0_capture2_ops,
1508                 .prealloc_size = 0,
1509                 .prealloc_max_size = 128 * 1024,
1510                 .ac97_idx = ICHD_PCM2IN,
1511         },
1512         {
1513                 .suffix = "IEC958",
1514                 .playback_ops = &snd_intel8x0_spdif_ops,
1515                 .prealloc_size = 64 * 1024,
1516                 .prealloc_max_size = 128 * 1024,
1517                 .ac97_idx = ICHD_SPBAR,
1518         },
1519 };
1520
1521 static struct ich_pcm_table nforce_pcms[] __devinitdata = {
1522         {
1523                 .playback_ops = &snd_intel8x0_playback_ops,
1524                 .capture_ops = &snd_intel8x0_capture_ops,
1525                 .prealloc_size = 64 * 1024,
1526                 .prealloc_max_size = 128 * 1024,
1527         },
1528         {
1529                 .suffix = "MIC ADC",
1530                 .capture_ops = &snd_intel8x0_capture_mic_ops,
1531                 .prealloc_size = 0,
1532                 .prealloc_max_size = 128 * 1024,
1533                 .ac97_idx = NVD_MIC,
1534         },
1535         {
1536                 .suffix = "IEC958",
1537                 .playback_ops = &snd_intel8x0_spdif_ops,
1538                 .prealloc_size = 64 * 1024,
1539                 .prealloc_max_size = 128 * 1024,
1540                 .ac97_idx = NVD_SPBAR,
1541         },
1542 };
1543
1544 static struct ich_pcm_table ali_pcms[] __devinitdata = {
1545         {
1546                 .playback_ops = &snd_intel8x0_ali_playback_ops,
1547                 .capture_ops = &snd_intel8x0_ali_capture_ops,
1548                 .prealloc_size = 64 * 1024,
1549                 .prealloc_max_size = 128 * 1024,
1550         },
1551         {
1552                 .suffix = "MIC ADC",
1553                 .capture_ops = &snd_intel8x0_ali_capture_mic_ops,
1554                 .prealloc_size = 0,
1555                 .prealloc_max_size = 128 * 1024,
1556                 .ac97_idx = ALID_MIC,
1557         },
1558         {
1559                 .suffix = "IEC958",
1560                 .playback_ops = &snd_intel8x0_ali_ac97spdifout_ops,
1561                 /* .capture_ops = &snd_intel8x0_ali_spdifin_ops, */
1562                 .prealloc_size = 64 * 1024,
1563                 .prealloc_max_size = 128 * 1024,
1564                 .ac97_idx = ALID_AC97SPDIFOUT,
1565         },
1566 #if 0 // NYI
1567         {
1568                 .suffix = "HW IEC958",
1569                 .playback_ops = &snd_intel8x0_ali_spdifout_ops,
1570                 .prealloc_size = 64 * 1024,
1571                 .prealloc_max_size = 128 * 1024,
1572         },
1573 #endif
1574 };
1575
1576 static int __devinit snd_intel8x0_pcm(struct intel8x0 *chip)
1577 {
1578         int i, tblsize, device, err;
1579         struct ich_pcm_table *tbl, *rec;
1580
1581         switch (chip->device_type) {
1582         case DEVICE_INTEL_ICH4:
1583                 tbl = intel_pcms;
1584                 tblsize = ARRAY_SIZE(intel_pcms);
1585                 if (spdif_aclink)
1586                         tblsize--;
1587                 break;
1588         case DEVICE_NFORCE:
1589                 tbl = nforce_pcms;
1590                 tblsize = ARRAY_SIZE(nforce_pcms);
1591                 if (spdif_aclink)
1592                         tblsize--;
1593                 break;
1594         case DEVICE_ALI:
1595                 tbl = ali_pcms;
1596                 tblsize = ARRAY_SIZE(ali_pcms);
1597                 break;
1598         default:
1599                 tbl = intel_pcms;
1600                 tblsize = 2;
1601                 break;
1602         }
1603
1604         device = 0;
1605         for (i = 0; i < tblsize; i++) {
1606                 rec = tbl + i;
1607                 if (i > 0 && rec->ac97_idx) {
1608                         /* activate PCM only when associated AC'97 codec */
1609                         if (! chip->ichd[rec->ac97_idx].pcm)
1610                                 continue;
1611                 }
1612                 err = snd_intel8x0_pcm1(chip, device, rec);
1613                 if (err < 0)
1614                         return err;
1615                 device++;
1616         }
1617
1618         chip->pcm_devs = device;
1619         return 0;
1620 }
1621
1622
1623 /*
1624  *  Mixer part
1625  */
1626
1627 static void snd_intel8x0_mixer_free_ac97_bus(struct snd_ac97_bus *bus)
1628 {
1629         struct intel8x0 *chip = bus->private_data;
1630         chip->ac97_bus = NULL;
1631 }
1632
1633 static void snd_intel8x0_mixer_free_ac97(struct snd_ac97 *ac97)
1634 {
1635         struct intel8x0 *chip = ac97->private_data;
1636         chip->ac97[ac97->num] = NULL;
1637 }
1638
1639 static struct ac97_pcm ac97_pcm_defs[] __devinitdata = {
1640         /* front PCM */
1641         {
1642                 .exclusive = 1,
1643                 .r = {  {
1644                                 .slots = (1 << AC97_SLOT_PCM_LEFT) |
1645                                          (1 << AC97_SLOT_PCM_RIGHT) |
1646                                          (1 << AC97_SLOT_PCM_CENTER) |
1647                                          (1 << AC97_SLOT_PCM_SLEFT) |
1648                                          (1 << AC97_SLOT_PCM_SRIGHT) |
1649                                          (1 << AC97_SLOT_LFE)
1650                         },
1651                         {
1652                                 .slots = (1 << AC97_SLOT_PCM_LEFT) |
1653                                          (1 << AC97_SLOT_PCM_RIGHT) |
1654                                          (1 << AC97_SLOT_PCM_LEFT_0) |
1655                                          (1 << AC97_SLOT_PCM_RIGHT_0)
1656                         }
1657                 }
1658         },
1659         /* PCM IN #1 */
1660         {
1661                 .stream = 1,
1662                 .exclusive = 1,
1663                 .r = {  {
1664                                 .slots = (1 << AC97_SLOT_PCM_LEFT) |
1665                                          (1 << AC97_SLOT_PCM_RIGHT)
1666                         }
1667                 }
1668         },
1669         /* MIC IN #1 */
1670         {
1671                 .stream = 1,
1672                 .exclusive = 1,
1673                 .r = {  {
1674                                 .slots = (1 << AC97_SLOT_MIC)
1675                         }
1676                 }
1677         },
1678         /* S/PDIF PCM */
1679         {
1680                 .exclusive = 1,
1681                 .spdif = 1,
1682                 .r = {  {
1683                                 .slots = (1 << AC97_SLOT_SPDIF_LEFT2) |
1684                                          (1 << AC97_SLOT_SPDIF_RIGHT2)
1685                         }
1686                 }
1687         },
1688         /* PCM IN #2 */
1689         {
1690                 .stream = 1,
1691                 .exclusive = 1,
1692                 .r = {  {
1693                                 .slots = (1 << AC97_SLOT_PCM_LEFT) |
1694                                          (1 << AC97_SLOT_PCM_RIGHT)
1695                         }
1696                 }
1697         },
1698         /* MIC IN #2 */
1699         {
1700                 .stream = 1,
1701                 .exclusive = 1,
1702                 .r = {  {
1703                                 .slots = (1 << AC97_SLOT_MIC)
1704                         }
1705                 }
1706         },
1707 };
1708
1709 static struct ac97_quirk ac97_quirks[] __devinitdata = {
1710         {
1711                 .subvendor = 0x0e11,
1712                 .subdevice = 0x008a,
1713                 .name = "Compaq Evo W4000",     /* AD1885 */
1714                 .type = AC97_TUNE_HP_ONLY
1715         },
1716         {
1717                 .subvendor = 0x0e11,
1718                 .subdevice = 0x00b8,
1719                 .name = "Compaq Evo D510C",
1720                 .type = AC97_TUNE_HP_ONLY
1721         },
1722         {
1723                 .subvendor = 0x0e11,
1724                 .subdevice = 0x0860,
1725                 .name = "HP/Compaq nx7010",
1726                 .type = AC97_TUNE_MUTE_LED
1727         },
1728         {
1729                 .subvendor = 0x1014,
1730                 .subdevice = 0x1f00,
1731                 .name = "MS-9128",
1732                 .type = AC97_TUNE_ALC_JACK
1733         },
1734         {
1735                 .subvendor = 0x1014,
1736                 .subdevice = 0x0267,
1737                 .name = "IBM NetVista A30p",    /* AD1981B */
1738                 .type = AC97_TUNE_HP_ONLY
1739         },
1740         {
1741                 .subvendor = 0x1025,
1742                 .subdevice = 0x0083,
1743                 .name = "Acer Aspire 3003LCi",
1744                 .type = AC97_TUNE_HP_ONLY
1745         },
1746         {
1747                 .subvendor = 0x1028,
1748                 .subdevice = 0x00d8,
1749                 .name = "Dell Precision 530",   /* AD1885 */
1750                 .type = AC97_TUNE_HP_ONLY
1751         },
1752         {
1753                 .subvendor = 0x1028,
1754                 .subdevice = 0x010d,
1755                 .name = "Dell", /* which model?  AD1885 */
1756                 .type = AC97_TUNE_HP_ONLY
1757         },
1758         {
1759                 .subvendor = 0x1028,
1760                 .subdevice = 0x0126,
1761                 .name = "Dell Optiplex GX260",  /* AD1981A */
1762                 .type = AC97_TUNE_HP_ONLY
1763         },
1764         {
1765                 .subvendor = 0x1028,
1766                 .subdevice = 0x012c,
1767                 .name = "Dell Precision 650",   /* AD1981A */
1768                 .type = AC97_TUNE_HP_ONLY
1769         },
1770         {
1771                 .subvendor = 0x1028,
1772                 .subdevice = 0x012d,
1773                 .name = "Dell Precision 450",   /* AD1981B*/
1774                 .type = AC97_TUNE_HP_ONLY
1775         },
1776         {
1777                 .subvendor = 0x1028,
1778                 .subdevice = 0x0147,
1779                 .name = "Dell", /* which model?  AD1981B*/
1780                 .type = AC97_TUNE_HP_ONLY
1781         },
1782         {
1783                 .subvendor = 0x1028,
1784                 .subdevice = 0x0151,
1785                 .name = "Dell Optiplex GX270",  /* AD1981B */
1786                 .type = AC97_TUNE_HP_ONLY
1787         },
1788         {
1789                 .subvendor = 0x1028,
1790                 .subdevice = 0x014e,
1791                 .name = "Dell D800", /* STAC9750/51 */
1792                 .type = AC97_TUNE_HP_ONLY
1793         },
1794         {
1795                 .subvendor = 0x1028,
1796                 .subdevice = 0x0163,
1797                 .name = "Dell Unknown", /* STAC9750/51 */
1798                 .type = AC97_TUNE_HP_ONLY
1799         },
1800         {
1801                 .subvendor = 0x1028,
1802                 .subdevice = 0x0186,
1803                 .name = "Dell Latitude D810", /* cf. Malone #41015 */
1804                 .type = AC97_TUNE_HP_MUTE_LED
1805         },
1806         {
1807                 .subvendor = 0x1028,
1808                 .subdevice = 0x0188,
1809                 .name = "Dell Inspiron 6000",
1810                 .type = AC97_TUNE_HP_MUTE_LED /* cf. Malone #41015 */
1811         },
1812         {
1813                 .subvendor = 0x1028,
1814                 .subdevice = 0x0191,
1815                 .name = "Dell Inspiron 8600",
1816                 .type = AC97_TUNE_HP_ONLY
1817         },
1818         {
1819                 .subvendor = 0x103c,
1820                 .subdevice = 0x006d,
1821                 .name = "HP zv5000",
1822                 .type = AC97_TUNE_MUTE_LED      /*AD1981B*/
1823         },
1824         {       /* FIXME: which codec? */
1825                 .subvendor = 0x103c,
1826                 .subdevice = 0x00c3,
1827                 .name = "HP xw6000",
1828                 .type = AC97_TUNE_HP_ONLY
1829         },
1830         {
1831                 .subvendor = 0x103c,
1832                 .subdevice = 0x088c,
1833                 .name = "HP nc8000",
1834                 .type = AC97_TUNE_HP_MUTE_LED
1835         },
1836         {
1837                 .subvendor = 0x103c,
1838                 .subdevice = 0x0890,
1839                 .name = "HP nc6000",
1840                 .type = AC97_TUNE_MUTE_LED
1841         },
1842         {
1843                 .subvendor = 0x103c,
1844                 .subdevice = 0x0934,
1845                 .name = "HP nx8220",
1846                 .type = AC97_TUNE_MUTE_LED
1847         },
1848         {
1849                 .subvendor = 0x103c,
1850                 .subdevice = 0x129d,
1851                 .name = "HP xw8000",
1852                 .type = AC97_TUNE_HP_ONLY
1853         },
1854         {
1855                 .subvendor = 0x103c,
1856                 .subdevice = 0x0938,
1857                 .name = "HP nc4200",
1858                 .type = AC97_TUNE_HP_MUTE_LED
1859         },
1860         {
1861                 .subvendor = 0x103c,
1862                 .subdevice = 0x099c,
1863                 .name = "HP nx6110/nc6120",
1864                 .type = AC97_TUNE_HP_MUTE_LED
1865         },
1866         {
1867                 .subvendor = 0x103c,
1868                 .subdevice = 0x0944,
1869                 .name = "HP nc6220",
1870                 .type = AC97_TUNE_HP_MUTE_LED
1871         },
1872         {
1873                 .subvendor = 0x103c,
1874                 .subdevice = 0x0934,
1875                 .name = "HP nc8220",
1876                 .type = AC97_TUNE_HP_MUTE_LED
1877         },
1878         {
1879                 .subvendor = 0x103c,
1880                 .subdevice = 0x12f1,
1881                 .name = "HP xw8200",    /* AD1981B*/
1882                 .type = AC97_TUNE_HP_ONLY
1883         },
1884         {
1885                 .subvendor = 0x103c,
1886                 .subdevice = 0x12f2,
1887                 .name = "HP xw6200",
1888                 .type = AC97_TUNE_HP_ONLY
1889         },
1890         {
1891                 .subvendor = 0x103c,
1892                 .subdevice = 0x3008,
1893                 .name = "HP xw4200",    /* AD1981B*/
1894                 .type = AC97_TUNE_HP_ONLY
1895         },
1896         {
1897                 .subvendor = 0x104d,
1898                 .subdevice = 0x8197,
1899                 .name = "Sony S1XP",
1900                 .type = AC97_TUNE_INV_EAPD
1901         },
1902         {
1903                 .subvendor = 0x1043,
1904                 .subdevice = 0x80f3,
1905                 .name = "ASUS ICH5/AD1985",
1906                 .type = AC97_TUNE_AD_SHARING
1907         },
1908         {
1909                 .subvendor = 0x10cf,
1910                 .subdevice = 0x11c3,
1911                 .name = "Fujitsu-Siemens E4010",
1912                 .type = AC97_TUNE_HP_ONLY
1913         },
1914         {
1915                 .subvendor = 0x10cf,
1916                 .subdevice = 0x1225,
1917                 .name = "Fujitsu-Siemens T3010",
1918                 .type = AC97_TUNE_HP_ONLY
1919         },
1920         {
1921                 .subvendor = 0x10cf,
1922                 .subdevice = 0x1253,
1923                 .name = "Fujitsu S6210",        /* STAC9750/51 */
1924                 .type = AC97_TUNE_HP_ONLY
1925         },
1926         {
1927                 .subvendor = 0x10cf,
1928                 .subdevice = 0x127e,
1929                 .name = "Fujitsu Lifebook C1211D",
1930                 .type = AC97_TUNE_HP_ONLY
1931         },
1932         {
1933                 .subvendor = 0x10cf,
1934                 .subdevice = 0x12ec,
1935                 .name = "Fujitsu-Siemens 4010",
1936                 .type = AC97_TUNE_HP_ONLY
1937         },
1938         {
1939                 .subvendor = 0x10cf,
1940                 .subdevice = 0x12f2,
1941                 .name = "Fujitsu-Siemens Celsius H320",
1942                 .type = AC97_TUNE_SWAP_HP
1943         },
1944         {
1945                 .subvendor = 0x10f1,
1946                 .subdevice = 0x2665,
1947                 .name = "Fujitsu-Siemens Celsius",      /* AD1981? */
1948                 .type = AC97_TUNE_HP_ONLY
1949         },
1950         {
1951                 .subvendor = 0x10f1,
1952                 .subdevice = 0x2885,
1953                 .name = "AMD64 Mobo",   /* ALC650 */
1954                 .type = AC97_TUNE_HP_ONLY
1955         },
1956         {
1957                 .subvendor = 0x10f1,
1958                 .subdevice = 0x2895,
1959                 .name = "Tyan Thunder K8WE",
1960                 .type = AC97_TUNE_HP_ONLY
1961         },
1962         {
1963                 .subvendor = 0x10f7,
1964                 .subdevice = 0x834c,
1965                 .name = "Panasonic CF-R4",
1966                 .type = AC97_TUNE_HP_ONLY,
1967         },
1968         {
1969                 .subvendor = 0x110a,
1970                 .subdevice = 0x0056,
1971                 .name = "Fujitsu-Siemens Scenic",       /* AD1981? */
1972                 .type = AC97_TUNE_HP_ONLY
1973         },
1974         {
1975                 .subvendor = 0x11d4,
1976                 .subdevice = 0x5375,
1977                 .name = "ADI AD1985 (discrete)",
1978                 .type = AC97_TUNE_HP_ONLY
1979         },
1980         {
1981                 .subvendor = 0x1462,
1982                 .subdevice = 0x5470,
1983                 .name = "MSI P4 ATX 645 Ultra",
1984                 .type = AC97_TUNE_HP_ONLY
1985         },
1986         {
1987                 .subvendor = 0x1734,
1988                 .subdevice = 0x0088,
1989                 .name = "Fujitsu-Siemens D1522",        /* AD1981 */
1990                 .type = AC97_TUNE_HP_ONLY
1991         },
1992         {
1993                 .subvendor = 0x8086,
1994                 .subdevice = 0x2000,
1995                 .mask = 0xfff0,
1996                 .name = "Intel ICH5/AD1985",
1997                 .type = AC97_TUNE_AD_SHARING
1998         },
1999         {
2000                 .subvendor = 0x8086,
2001                 .subdevice = 0x4000,
2002                 .mask = 0xfff0,
2003                 .name = "Intel ICH5/AD1985",
2004                 .type = AC97_TUNE_AD_SHARING
2005         },
2006         {
2007                 .subvendor = 0x8086,
2008                 .subdevice = 0x4856,
2009                 .name = "Intel D845WN (82801BA)",
2010                 .type = AC97_TUNE_SWAP_HP
2011         },
2012         {
2013                 .subvendor = 0x8086,
2014                 .subdevice = 0x4d44,
2015                 .name = "Intel D850EMV2",       /* AD1885 */
2016                 .type = AC97_TUNE_HP_ONLY
2017         },
2018         {
2019                 .subvendor = 0x8086,
2020                 .subdevice = 0x4d56,
2021                 .name = "Intel ICH/AD1885",
2022                 .type = AC97_TUNE_HP_ONLY
2023         },
2024         {
2025                 .subvendor = 0x8086,
2026                 .subdevice = 0x6000,
2027                 .mask = 0xfff0,
2028                 .name = "Intel ICH5/AD1985",
2029                 .type = AC97_TUNE_AD_SHARING
2030         },
2031         {
2032                 .subvendor = 0x8086,
2033                 .subdevice = 0xe000,
2034                 .mask = 0xfff0,
2035                 .name = "Intel ICH5/AD1985",
2036                 .type = AC97_TUNE_AD_SHARING
2037         },
2038 #if 0 /* FIXME: this seems wrong on most boards */
2039         {
2040                 .subvendor = 0x8086,
2041                 .subdevice = 0xa000,
2042                 .mask = 0xfff0,
2043                 .name = "Intel ICH5/AD1985",
2044                 .type = AC97_TUNE_HP_ONLY
2045         },
2046 #endif
2047         { } /* terminator */
2048 };
2049
2050 static int __devinit snd_intel8x0_mixer(struct intel8x0 *chip, int ac97_clock,
2051                                         const char *quirk_override)
2052 {
2053         struct snd_ac97_bus *pbus;
2054         struct snd_ac97_template ac97;
2055         int err;
2056         unsigned int i, codecs;
2057         unsigned int glob_sta = 0;
2058         struct snd_ac97_bus_ops *ops;
2059         static struct snd_ac97_bus_ops standard_bus_ops = {
2060                 .write = snd_intel8x0_codec_write,
2061                 .read = snd_intel8x0_codec_read,
2062         };
2063         static struct snd_ac97_bus_ops ali_bus_ops = {
2064                 .write = snd_intel8x0_ali_codec_write,
2065                 .read = snd_intel8x0_ali_codec_read,
2066         };
2067
2068         chip->spdif_idx = -1; /* use PCMOUT (or disabled) */
2069         if (!spdif_aclink) {
2070                 switch (chip->device_type) {
2071                 case DEVICE_NFORCE:
2072                         chip->spdif_idx = NVD_SPBAR;
2073                         break;
2074                 case DEVICE_ALI:
2075                         chip->spdif_idx = ALID_AC97SPDIFOUT;
2076                         break;
2077                 case DEVICE_INTEL_ICH4:
2078                         chip->spdif_idx = ICHD_SPBAR;
2079                         break;
2080                 };
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 | AC97_SCAP_POWER_SAVE;
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 && !spdif_aclink) {
2205                 /* 48kHz only */
2206                 chip->ichd[chip->spdif_idx].pcm->rates = SNDRV_PCM_RATE_48000;
2207         }
2208         if (chip->device_type == DEVICE_INTEL_ICH4 && !spdif_aclink) {
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 && !spdif_aclink) {
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 && !spdif_aclink) {
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->addr)
2447                 pci_iounmap(chip->pci, chip->addr);
2448         if (chip->bmaddr)
2449                 pci_iounmap(chip->pci, chip->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         /* The call below may disable built-in speaker on some laptops
2493          * after S2RAM.  So, don't touch it.
2494          */
2495         /* pci_set_power_state(pci, pci_choose_state(pci, state)); */
2496         return 0;
2497 }
2498
2499 static int intel8x0_resume(struct pci_dev *pci)
2500 {
2501         struct snd_card *card = pci_get_drvdata(pci);
2502         struct intel8x0 *chip = card->private_data;
2503         int i;
2504
2505         pci_set_power_state(pci, PCI_D0);
2506         pci_restore_state(pci);
2507         if (pci_enable_device(pci) < 0) {
2508                 printk(KERN_ERR "intel8x0: pci_enable_device failed, "
2509                        "disabling device\n");
2510                 snd_card_disconnect(card);
2511                 return -EIO;
2512         }
2513         pci_set_master(pci);
2514         snd_intel8x0_chip_init(chip, 0);
2515         if (request_irq(pci->irq, snd_intel8x0_interrupt,
2516                         IRQF_SHARED, card->shortname, chip)) {
2517                 printk(KERN_ERR "intel8x0: unable to grab IRQ %d, "
2518                        "disabling device\n", pci->irq);
2519                 snd_card_disconnect(card);
2520                 return -EIO;
2521         }
2522         chip->irq = pci->irq;
2523         synchronize_irq(chip->irq);
2524
2525         /* re-initialize mixer stuff */
2526         if (chip->device_type == DEVICE_INTEL_ICH4 && !spdif_aclink) {
2527                 /* enable separate SDINs for ICH4 */
2528                 iputbyte(chip, ICHREG(SDM), chip->sdm_saved);
2529                 /* use slot 10/11 for SPDIF */
2530                 iputdword(chip, ICHREG(GLOB_CNT),
2531                           (igetdword(chip, ICHREG(GLOB_CNT)) & ~ICH_PCM_SPDIF_MASK) |
2532                           ICH_PCM_SPDIF_1011);
2533         }
2534
2535         /* refill nocache */
2536         if (chip->fix_nocache)
2537                 fill_nocache(chip->bdbars.area, chip->bdbars.bytes, 1);
2538
2539         for (i = 0; i < chip->ncodecs; i++)
2540                 snd_ac97_resume(chip->ac97[i]);
2541
2542         /* refill nocache */
2543         if (chip->fix_nocache) {
2544                 for (i = 0; i < chip->bdbars_count; i++) {
2545                         struct ichdev *ichdev = &chip->ichd[i];
2546                         if (ichdev->substream && ichdev->page_attr_changed) {
2547                                 struct snd_pcm_runtime *runtime = ichdev->substream->runtime;
2548                                 if (runtime->dma_area)
2549                                         fill_nocache(runtime->dma_area, runtime->dma_bytes, 1);
2550                         }
2551                 }
2552         }
2553
2554         /* resume status */
2555         for (i = 0; i < chip->bdbars_count; i++) {
2556                 struct ichdev *ichdev = &chip->ichd[i];
2557                 unsigned long port = ichdev->reg_offset;
2558                 if (! ichdev->substream || ! ichdev->suspended)
2559                         continue;
2560                 if (ichdev->ichd == ICHD_PCMOUT)
2561                         snd_intel8x0_setup_pcm_out(chip, ichdev->substream->runtime);
2562                 iputdword(chip, port + ICH_REG_OFF_BDBAR, ichdev->bdbar_addr);
2563                 iputbyte(chip, port + ICH_REG_OFF_LVI, ichdev->lvi);
2564                 iputbyte(chip, port + ICH_REG_OFF_CIV, ichdev->civ);
2565                 iputbyte(chip, port + ichdev->roff_sr, ICH_FIFOE | ICH_BCIS | ICH_LVBCI);
2566         }
2567
2568         snd_power_change_state(card, SNDRV_CTL_POWER_D0);
2569         return 0;
2570 }
2571 #endif /* CONFIG_PM */
2572
2573 #define INTEL8X0_TESTBUF_SIZE   32768   /* enough large for one shot */
2574
2575 static void __devinit intel8x0_measure_ac97_clock(struct intel8x0 *chip)
2576 {
2577         struct snd_pcm_substream *subs;
2578         struct ichdev *ichdev;
2579         unsigned long port;
2580         unsigned long pos, t;
2581         struct timeval start_time, stop_time;
2582
2583         if (chip->ac97_bus->clock != 48000)
2584                 return; /* specified in module option */
2585
2586         subs = chip->pcm[0]->streams[0].substream;
2587         if (! subs || subs->dma_buffer.bytes < INTEL8X0_TESTBUF_SIZE) {
2588                 snd_printk(KERN_WARNING "no playback buffer allocated - aborting measure ac97 clock\n");
2589                 return;
2590         }
2591         ichdev = &chip->ichd[ICHD_PCMOUT];
2592         ichdev->physbuf = subs->dma_buffer.addr;
2593         ichdev->size = chip->ichd[ICHD_PCMOUT].fragsize = INTEL8X0_TESTBUF_SIZE;
2594         ichdev->substream = NULL; /* don't process interrupts */
2595
2596         /* set rate */
2597         if (snd_ac97_set_rate(chip->ac97[0], AC97_PCM_FRONT_DAC_RATE, 48000) < 0) {
2598                 snd_printk(KERN_ERR "cannot set ac97 rate: clock = %d\n", chip->ac97_bus->clock);
2599                 return;
2600         }
2601         snd_intel8x0_setup_periods(chip, ichdev);
2602         port = ichdev->reg_offset;
2603         spin_lock_irq(&chip->reg_lock);
2604         chip->in_measurement = 1;
2605         /* trigger */
2606         if (chip->device_type != DEVICE_ALI)
2607                 iputbyte(chip, port + ICH_REG_OFF_CR, ICH_IOCE | ICH_STARTBM);
2608         else {
2609                 iputbyte(chip, port + ICH_REG_OFF_CR, ICH_IOCE);
2610                 iputdword(chip, ICHREG(ALI_DMACR), 1 << ichdev->ali_slot);
2611         }
2612         do_gettimeofday(&start_time);
2613         spin_unlock_irq(&chip->reg_lock);
2614         msleep(50);
2615         spin_lock_irq(&chip->reg_lock);
2616         /* check the position */
2617         pos = ichdev->fragsize1;
2618         pos -= igetword(chip, ichdev->reg_offset + ichdev->roff_picb) << ichdev->pos_shift;
2619         pos += ichdev->position;
2620         chip->in_measurement = 0;
2621         do_gettimeofday(&stop_time);
2622         /* stop */
2623         if (chip->device_type == DEVICE_ALI) {
2624                 iputdword(chip, ICHREG(ALI_DMACR), 1 << (ichdev->ali_slot + 16));
2625                 iputbyte(chip, port + ICH_REG_OFF_CR, 0);
2626                 while (igetbyte(chip, port + ICH_REG_OFF_CR))
2627                         ;
2628         } else {
2629                 iputbyte(chip, port + ICH_REG_OFF_CR, 0);
2630                 while (!(igetbyte(chip, port + ichdev->roff_sr) & ICH_DCH))
2631                         ;
2632         }
2633         iputbyte(chip, port + ICH_REG_OFF_CR, ICH_RESETREGS);
2634         spin_unlock_irq(&chip->reg_lock);
2635
2636         t = stop_time.tv_sec - start_time.tv_sec;
2637         t *= 1000000;
2638         t += stop_time.tv_usec - start_time.tv_usec;
2639         printk(KERN_INFO "%s: measured %lu usecs\n", __FUNCTION__, t);
2640         if (t == 0) {
2641                 snd_printk(KERN_ERR "?? calculation error..\n");
2642                 return;
2643         }
2644         pos = (pos / 4) * 1000;
2645         pos = (pos / t) * 1000 + ((pos % t) * 1000) / t;
2646         if (pos < 40000 || pos >= 60000)
2647                 /* abnormal value. hw problem? */
2648                 printk(KERN_INFO "intel8x0: measured clock %ld rejected\n", pos);
2649         else if (pos < 47500 || pos > 48500)
2650                 /* not 48000Hz, tuning the clock.. */
2651                 chip->ac97_bus->clock = (chip->ac97_bus->clock * 48000) / pos;
2652         printk(KERN_INFO "intel8x0: clocking to %d\n", chip->ac97_bus->clock);
2653         snd_ac97_update_power(chip->ac97[0], AC97_PCM_FRONT_DAC_RATE, 0);
2654 }
2655
2656 #ifdef CONFIG_PROC_FS
2657 static void snd_intel8x0_proc_read(struct snd_info_entry * entry,
2658                                    struct snd_info_buffer *buffer)
2659 {
2660         struct intel8x0 *chip = entry->private_data;
2661         unsigned int tmp;
2662
2663         snd_iprintf(buffer, "Intel8x0\n\n");
2664         if (chip->device_type == DEVICE_ALI)
2665                 return;
2666         tmp = igetdword(chip, ICHREG(GLOB_STA));
2667         snd_iprintf(buffer, "Global control        : 0x%08x\n", igetdword(chip, ICHREG(GLOB_CNT)));
2668         snd_iprintf(buffer, "Global status         : 0x%08x\n", tmp);
2669         if (chip->device_type == DEVICE_INTEL_ICH4)
2670                 snd_iprintf(buffer, "SDM                   : 0x%08x\n", igetdword(chip, ICHREG(SDM)));
2671         snd_iprintf(buffer, "AC'97 codecs ready    :");
2672         if (tmp & chip->codec_isr_bits) {
2673                 int i;
2674                 static const char *codecs[3] = {
2675                         "primary", "secondary", "tertiary"
2676                 };
2677                 for (i = 0; i < chip->max_codecs; i++)
2678                         if (tmp & chip->codec_bit[i])
2679                                 snd_iprintf(buffer, " %s", codecs[i]);
2680         } else
2681                 snd_iprintf(buffer, " none");
2682         snd_iprintf(buffer, "\n");
2683         if (chip->device_type == DEVICE_INTEL_ICH4 ||
2684             chip->device_type == DEVICE_SIS)
2685                 snd_iprintf(buffer, "AC'97 codecs SDIN     : %i %i %i\n",
2686                         chip->ac97_sdin[0],
2687                         chip->ac97_sdin[1],
2688                         chip->ac97_sdin[2]);
2689 }
2690
2691 static void __devinit snd_intel8x0_proc_init(struct intel8x0 * chip)
2692 {
2693         struct snd_info_entry *entry;
2694
2695         if (! snd_card_proc_new(chip->card, "intel8x0", &entry))
2696                 snd_info_set_text_ops(entry, chip, snd_intel8x0_proc_read);
2697 }
2698 #else
2699 #define snd_intel8x0_proc_init(x)
2700 #endif
2701
2702 static int snd_intel8x0_dev_free(struct snd_device *device)
2703 {
2704         struct intel8x0 *chip = device->device_data;
2705         return snd_intel8x0_free(chip);
2706 }
2707
2708 struct ich_reg_info {
2709         unsigned int int_sta_mask;
2710         unsigned int offset;
2711 };
2712
2713 static unsigned int ich_codec_bits[3] = {
2714         ICH_PCR, ICH_SCR, ICH_TCR
2715 };
2716 static unsigned int sis_codec_bits[3] = {
2717         ICH_PCR, ICH_SCR, ICH_SIS_TCR
2718 };
2719
2720 static int __devinit snd_intel8x0_create(struct snd_card *card,
2721                                          struct pci_dev *pci,
2722                                          unsigned long device_type,
2723                                          struct intel8x0 ** r_intel8x0)
2724 {
2725         struct intel8x0 *chip;
2726         int err;
2727         unsigned int i;
2728         unsigned int int_sta_masks;
2729         struct ichdev *ichdev;
2730         static struct snd_device_ops ops = {
2731                 .dev_free =     snd_intel8x0_dev_free,
2732         };
2733
2734         static unsigned int bdbars[] = {
2735                 3, /* DEVICE_INTEL */
2736                 6, /* DEVICE_INTEL_ICH4 */
2737                 3, /* DEVICE_SIS */
2738                 6, /* DEVICE_ALI */
2739                 4, /* DEVICE_NFORCE */
2740         };
2741         static struct ich_reg_info intel_regs[6] = {
2742                 { ICH_PIINT, 0 },
2743                 { ICH_POINT, 0x10 },
2744                 { ICH_MCINT, 0x20 },
2745                 { ICH_M2INT, 0x40 },
2746                 { ICH_P2INT, 0x50 },
2747                 { ICH_SPINT, 0x60 },
2748         };
2749         static struct ich_reg_info nforce_regs[4] = {
2750                 { ICH_PIINT, 0 },
2751                 { ICH_POINT, 0x10 },
2752                 { ICH_MCINT, 0x20 },
2753                 { ICH_NVSPINT, 0x70 },
2754         };
2755         static struct ich_reg_info ali_regs[6] = {
2756                 { ALI_INT_PCMIN, 0x40 },
2757                 { ALI_INT_PCMOUT, 0x50 },
2758                 { ALI_INT_MICIN, 0x60 },
2759                 { ALI_INT_CODECSPDIFOUT, 0x70 },
2760                 { ALI_INT_SPDIFIN, 0xa0 },
2761                 { ALI_INT_SPDIFOUT, 0xb0 },
2762         };
2763         struct ich_reg_info *tbl;
2764
2765         *r_intel8x0 = NULL;
2766
2767         if ((err = pci_enable_device(pci)) < 0)
2768                 return err;
2769
2770         chip = kzalloc(sizeof(*chip), GFP_KERNEL);
2771         if (chip == NULL) {
2772                 pci_disable_device(pci);
2773                 return -ENOMEM;
2774         }
2775         spin_lock_init(&chip->reg_lock);
2776         chip->device_type = device_type;
2777         chip->card = card;
2778         chip->pci = pci;
2779         chip->irq = -1;
2780
2781         /* module parameters */
2782         chip->buggy_irq = buggy_irq;
2783         chip->buggy_semaphore = buggy_semaphore;
2784         if (xbox)
2785                 chip->xbox = 1;
2786
2787         if (pci->vendor == PCI_VENDOR_ID_INTEL &&
2788             pci->device == PCI_DEVICE_ID_INTEL_440MX)
2789                 chip->fix_nocache = 1; /* enable workaround */
2790
2791         if ((err = pci_request_regions(pci, card->shortname)) < 0) {
2792                 kfree(chip);
2793                 pci_disable_device(pci);
2794                 return err;
2795         }
2796
2797         if (device_type == DEVICE_ALI) {
2798                 /* ALI5455 has no ac97 region */
2799                 chip->bmaddr = pci_iomap(pci, 0, 0);
2800                 goto port_inited;
2801         }
2802
2803         if (pci_resource_flags(pci, 2) & IORESOURCE_MEM) /* ICH4 and Nforce */
2804                 chip->addr = pci_iomap(pci, 2, 0);
2805         else
2806                 chip->addr = pci_iomap(pci, 0, 0);
2807         if (!chip->addr) {
2808                 snd_printk(KERN_ERR "AC'97 space ioremap problem\n");
2809                 snd_intel8x0_free(chip);
2810                 return -EIO;
2811         }
2812         if (pci_resource_flags(pci, 3) & IORESOURCE_MEM) /* ICH4 */
2813                 chip->bmaddr = pci_iomap(pci, 3, 0);
2814         else
2815                 chip->bmaddr = pci_iomap(pci, 1, 0);
2816         if (!chip->bmaddr) {
2817                 snd_printk(KERN_ERR "Controller space ioremap problem\n");
2818                 snd_intel8x0_free(chip);
2819                 return -EIO;
2820         }
2821
2822  port_inited:
2823         chip->bdbars_count = bdbars[device_type];
2824
2825         /* initialize offsets */
2826         switch (device_type) {
2827         case DEVICE_NFORCE:
2828                 tbl = nforce_regs;
2829                 break;
2830         case DEVICE_ALI:
2831                 tbl = ali_regs;
2832                 break;
2833         default:
2834                 tbl = intel_regs;
2835                 break;
2836         }
2837         for (i = 0; i < chip->bdbars_count; i++) {
2838                 ichdev = &chip->ichd[i];
2839                 ichdev->ichd = i;
2840                 ichdev->reg_offset = tbl[i].offset;
2841                 ichdev->int_sta_mask = tbl[i].int_sta_mask;
2842                 if (device_type == DEVICE_SIS) {
2843                         /* SiS 7012 swaps the registers */
2844                         ichdev->roff_sr = ICH_REG_OFF_PICB;
2845                         ichdev->roff_picb = ICH_REG_OFF_SR;
2846                 } else {
2847                         ichdev->roff_sr = ICH_REG_OFF_SR;
2848                         ichdev->roff_picb = ICH_REG_OFF_PICB;
2849                 }
2850                 if (device_type == DEVICE_ALI)
2851                         ichdev->ali_slot = (ichdev->reg_offset - 0x40) / 0x10;
2852                 /* SIS7012 handles the pcm data in bytes, others are in samples */
2853                 ichdev->pos_shift = (device_type == DEVICE_SIS) ? 0 : 1;
2854         }
2855
2856         /* allocate buffer descriptor lists */
2857         /* the start of each lists must be aligned to 8 bytes */
2858         if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci),
2859                                 chip->bdbars_count * sizeof(u32) * ICH_MAX_FRAGS * 2,
2860                                 &chip->bdbars) < 0) {
2861                 snd_intel8x0_free(chip);
2862                 snd_printk(KERN_ERR "intel8x0: cannot allocate buffer descriptors\n");
2863                 return -ENOMEM;
2864         }
2865         /* tables must be aligned to 8 bytes here, but the kernel pages
2866            are much bigger, so we don't care (on i386) */
2867         /* workaround for 440MX */
2868         if (chip->fix_nocache)
2869                 fill_nocache(chip->bdbars.area, chip->bdbars.bytes, 1);
2870         int_sta_masks = 0;
2871         for (i = 0; i < chip->bdbars_count; i++) {
2872                 ichdev = &chip->ichd[i];
2873                 ichdev->bdbar = ((u32 *)chip->bdbars.area) +
2874                         (i * ICH_MAX_FRAGS * 2);
2875                 ichdev->bdbar_addr = chip->bdbars.addr +
2876                         (i * sizeof(u32) * ICH_MAX_FRAGS * 2);
2877                 int_sta_masks |= ichdev->int_sta_mask;
2878         }
2879         chip->int_sta_reg = device_type == DEVICE_ALI ?
2880                 ICH_REG_ALI_INTERRUPTSR : ICH_REG_GLOB_STA;
2881         chip->int_sta_mask = int_sta_masks;
2882
2883         pci_set_master(pci);
2884
2885         switch(chip->device_type) {
2886         case DEVICE_INTEL_ICH4:
2887                 /* ICH4 can have three codecs */
2888                 chip->max_codecs = 3;
2889                 chip->codec_bit = ich_codec_bits;
2890                 chip->codec_ready_bits = ICH_PRI | ICH_SRI | ICH_TRI;
2891                 break;
2892         case DEVICE_SIS:
2893                 /* recent SIS7012 can have three codecs */
2894                 chip->max_codecs = 3;
2895                 chip->codec_bit = sis_codec_bits;
2896                 chip->codec_ready_bits = ICH_PRI | ICH_SRI | ICH_SIS_TRI;
2897                 break;
2898         default:
2899                 /* others up to two codecs */
2900                 chip->max_codecs = 2;
2901                 chip->codec_bit = ich_codec_bits;
2902                 chip->codec_ready_bits = ICH_PRI | ICH_SRI;
2903                 break;
2904         }
2905         for (i = 0; i < chip->max_codecs; i++)
2906                 chip->codec_isr_bits |= chip->codec_bit[i];
2907
2908         if ((err = snd_intel8x0_chip_init(chip, 1)) < 0) {
2909                 snd_intel8x0_free(chip);
2910                 return err;
2911         }
2912
2913         /* request irq after initializaing int_sta_mask, etc */
2914         if (request_irq(pci->irq, snd_intel8x0_interrupt,
2915                         IRQF_SHARED, card->shortname, chip)) {
2916                 snd_printk(KERN_ERR "unable to grab IRQ %d\n", pci->irq);
2917                 snd_intel8x0_free(chip);
2918                 return -EBUSY;
2919         }
2920         chip->irq = pci->irq;
2921
2922         if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
2923                 snd_intel8x0_free(chip);
2924                 return err;
2925         }
2926
2927         snd_card_set_dev(card, &pci->dev);
2928
2929         *r_intel8x0 = chip;
2930         return 0;
2931 }
2932
2933 static struct shortname_table {
2934         unsigned int id;
2935         const char *s;
2936 } shortnames[] __devinitdata = {
2937         { PCI_DEVICE_ID_INTEL_82801AA_5, "Intel 82801AA-ICH" },
2938         { PCI_DEVICE_ID_INTEL_82801AB_5, "Intel 82901AB-ICH0" },
2939         { PCI_DEVICE_ID_INTEL_82801BA_4, "Intel 82801BA-ICH2" },
2940         { PCI_DEVICE_ID_INTEL_440MX, "Intel 440MX" },
2941         { PCI_DEVICE_ID_INTEL_82801CA_5, "Intel 82801CA-ICH3" },
2942         { PCI_DEVICE_ID_INTEL_82801DB_5, "Intel 82801DB-ICH4" },
2943         { PCI_DEVICE_ID_INTEL_82801EB_5, "Intel ICH5" },
2944         { PCI_DEVICE_ID_INTEL_ESB_5, "Intel 6300ESB" },
2945         { PCI_DEVICE_ID_INTEL_ICH6_18, "Intel ICH6" },
2946         { PCI_DEVICE_ID_INTEL_ICH7_20, "Intel ICH7" },
2947         { PCI_DEVICE_ID_INTEL_ESB2_14, "Intel ESB2" },
2948         { PCI_DEVICE_ID_SI_7012, "SiS SI7012" },
2949         { PCI_DEVICE_ID_NVIDIA_MCP1_AUDIO, "NVidia nForce" },
2950         { PCI_DEVICE_ID_NVIDIA_MCP2_AUDIO, "NVidia nForce2" },
2951         { PCI_DEVICE_ID_NVIDIA_MCP3_AUDIO, "NVidia nForce3" },
2952         { PCI_DEVICE_ID_NVIDIA_CK8S_AUDIO, "NVidia CK8S" },
2953         { PCI_DEVICE_ID_NVIDIA_CK804_AUDIO, "NVidia CK804" },
2954         { PCI_DEVICE_ID_NVIDIA_CK8_AUDIO, "NVidia CK8" },
2955         { 0x003a, "NVidia MCP04" },
2956         { 0x746d, "AMD AMD8111" },
2957         { 0x7445, "AMD AMD768" },
2958         { 0x5455, "ALi M5455" },
2959         { 0, NULL },
2960 };
2961
2962 static struct snd_pci_quirk spdif_aclink_defaults[] __devinitdata = {
2963         SND_PCI_QUIRK(0x147b, 0x1c1a, "ASUS KN8", 1),
2964         { } /* end */
2965 };
2966
2967 /* look up white/black list for SPDIF over ac-link */
2968 static int __devinit check_default_spdif_aclink(struct pci_dev *pci)
2969 {
2970         const struct snd_pci_quirk *w;
2971
2972         w = snd_pci_quirk_lookup(pci, spdif_aclink_defaults);
2973         if (w) {
2974                 if (w->value)
2975                         snd_printdd(KERN_INFO "intel8x0: Using SPDIF over "
2976                                     "AC-Link for %s\n", w->name);
2977                 else
2978                         snd_printdd(KERN_INFO "intel8x0: Using integrated "
2979                                     "SPDIF DMA for %s\n", w->name);
2980                 return w->value;
2981         }
2982         return 0;
2983 }
2984
2985 static int __devinit snd_intel8x0_probe(struct pci_dev *pci,
2986                                         const struct pci_device_id *pci_id)
2987 {
2988         struct snd_card *card;
2989         struct intel8x0 *chip;
2990         int err;
2991         struct shortname_table *name;
2992
2993         card = snd_card_new(index, id, THIS_MODULE, 0);
2994         if (card == NULL)
2995                 return -ENOMEM;
2996
2997         if (spdif_aclink < 0)
2998                 spdif_aclink = check_default_spdif_aclink(pci);
2999
3000         strcpy(card->driver, "ICH");
3001         if (!spdif_aclink) {
3002                 switch (pci_id->driver_data) {
3003                 case DEVICE_NFORCE:
3004                         strcpy(card->driver, "NFORCE");
3005                         break;
3006                 case DEVICE_INTEL_ICH4:
3007                         strcpy(card->driver, "ICH4");
3008                 }
3009         }
3010
3011         strcpy(card->shortname, "Intel ICH");
3012         for (name = shortnames; name->id; name++) {
3013                 if (pci->device == name->id) {
3014                         strcpy(card->shortname, name->s);
3015                         break;
3016                 }
3017         }
3018
3019         if (buggy_irq < 0) {
3020                 /* some Nforce[2] and ICH boards have problems with IRQ handling.
3021                  * Needs to return IRQ_HANDLED for unknown irqs.
3022                  */
3023                 if (pci_id->driver_data == DEVICE_NFORCE)
3024                         buggy_irq = 1;
3025                 else
3026                         buggy_irq = 0;
3027         }
3028
3029         if ((err = snd_intel8x0_create(card, pci, pci_id->driver_data,
3030                                        &chip)) < 0) {
3031                 snd_card_free(card);
3032                 return err;
3033         }
3034         card->private_data = chip;
3035
3036         if ((err = snd_intel8x0_mixer(chip, ac97_clock, ac97_quirk)) < 0) {
3037                 snd_card_free(card);
3038                 return err;
3039         }
3040         if ((err = snd_intel8x0_pcm(chip)) < 0) {
3041                 snd_card_free(card);
3042                 return err;
3043         }
3044
3045         snd_intel8x0_proc_init(chip);
3046
3047         snprintf(card->longname, sizeof(card->longname),
3048                  "%s with %s at irq %i", card->shortname,
3049                  snd_ac97_get_short_name(chip->ac97[0]), chip->irq);
3050
3051         if (! ac97_clock)
3052                 intel8x0_measure_ac97_clock(chip);
3053
3054         if ((err = snd_card_register(card)) < 0) {
3055                 snd_card_free(card);
3056                 return err;
3057         }
3058         pci_set_drvdata(pci, card);
3059         return 0;
3060 }
3061
3062 static void __devexit snd_intel8x0_remove(struct pci_dev *pci)
3063 {
3064         snd_card_free(pci_get_drvdata(pci));
3065         pci_set_drvdata(pci, NULL);
3066 }
3067
3068 static struct pci_driver driver = {
3069         .name = "Intel ICH",
3070         .id_table = snd_intel8x0_ids,
3071         .probe = snd_intel8x0_probe,
3072         .remove = __devexit_p(snd_intel8x0_remove),
3073 #ifdef CONFIG_PM
3074         .suspend = intel8x0_suspend,
3075         .resume = intel8x0_resume,
3076 #endif
3077 };
3078
3079
3080 static int __init alsa_card_intel8x0_init(void)
3081 {
3082         return pci_register_driver(&driver);
3083 }
3084
3085 static void __exit alsa_card_intel8x0_exit(void)
3086 {
3087         pci_unregister_driver(&driver);
3088 }
3089
3090 module_init(alsa_card_intel8x0_init)
3091 module_exit(alsa_card_intel8x0_exit)