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

   1 /*
   2  *   ALSA driver for Intel ICH (i8x0) chipsets
   3  *
   4  *      Copyright (c) 2000 Jaroslav Kysela <perex@suse.cz>
   5  *
   6  *
   7  *   This code also contains alpha support for SiS 735 chipsets provided
   8  *   by Mike Pieper <mptei@users.sourceforge.net>. We have no datasheet
   9  *   for SiS735, so the code is not fully functional.
  10  *
  11  *
  12  *   This program is free software; you can redistribute it and/or modify
  13  *   it under the terms of the GNU General Public License as published by
  14  *   the Free Software Foundation; either version 2 of the License, or
  15  *   (at your option) any later version.
  16  *
  17  *   This program is distributed in the hope that it will be useful,
  18  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  19  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20  *   GNU General Public License for more details.
  21  *
  22  *   You should have received a copy of the GNU General Public License
  23  *   along with this program; if not, write to the Free Software
  24  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  25
  26  *
  27  */
  28
  29 #include <sound/driver.h>
  30 #include <asm/io.h>
  31 #include <linux/delay.h>
  32 #include <linux/interrupt.h>
  33 #include <linux/init.h>
  34 #include <linux/pci.h>
  35 #include <linux/slab.h>
  36 #include <linux/moduleparam.h>
  37 #include <sound/core.h>
  38 #include <sound/pcm.h>
  39 #include <sound/ac97_codec.h>
  40 #include <sound/info.h>
  41 #include <sound/initval.h>
  42 /* for 440MX workaround */
  43 #include <asm/pgtable.h>
  44 #include <asm/cacheflush.h>
  45
  46 MODULE_AUTHOR("Jaroslav Kysela <perex@suse.cz>");
  47 MODULE_DESCRIPTION("Intel 82801AA,82901AB,i810,i820,i830,i840,i845,MX440; SiS 7012; Ali 5455");
  48 MODULE_LICENSE("GPL");
  49 MODULE_SUPPORTED_DEVICE("{{Intel,82801AA-ICH},"
  50                 "{Intel,82901AB-ICH0},"
  51                 "{Intel,82801BA-ICH2},"
  52                 "{Intel,82801CA-ICH3},"
  53                 "{Intel,82801DB-ICH4},"
  54                 "{Intel,ICH5},"
  55                 "{Intel,ICH6},"
  56                 "{Intel,ICH7},"
  57                 "{Intel,6300ESB},"
  58                 "{Intel,ESB2},"
  59                 "{Intel,MX440},"
  60                 "{SiS,SI7012},"
  61                 "{NVidia,nForce Audio},"
  62                 "{NVidia,nForce2 Audio},"
  63                 "{AMD,AMD768},"
  64                 "{AMD,AMD8111},"
  65                 "{ALI,M5455}}");
  66
  67 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;      /* Index 0-MAX */
  68 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;       /* ID for this card */
  69 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;      /* Enable this card */
  70 static int ac97_clock[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 0};
  71 static char *ac97_quirk[SNDRV_CARDS];
  72 static int buggy_irq[SNDRV_CARDS];
  73 static int xbox[SNDRV_CARDS];
  74
  75 #ifdef SUPPORT_MIDI
  76 static int mpu_port[SNDRV_CARDS]; /* disabled */
  77 #endif
  78
  79 module_param_array(index, int, NULL, 0444);
  80 MODULE_PARM_DESC(index, "Index value for Intel i8x0 soundcard.");
  81 module_param_array(id, charp, NULL, 0444);
  82 MODULE_PARM_DESC(id, "ID string for Intel i8x0 soundcard.");
  83 module_param_array(enable, bool, NULL, 0444);
  84 MODULE_PARM_DESC(enable, "Enable Intel i8x0 soundcard.");
  85 module_param_array(ac97_clock, int, NULL, 0444);
  86 MODULE_PARM_DESC(ac97_clock, "AC'97 codec clock (0 = auto-detect).");
  87 module_param_array(ac97_quirk, charp, NULL, 0444);
  88 MODULE_PARM_DESC(ac97_quirk, "AC'97 workaround for strange hardware.");
  89 module_param_array(buggy_irq, bool, NULL, 0444);
  90 MODULE_PARM_DESC(buggy_irq, "Enable workaround for buggy interrupts on some motherboards.");
  91 module_param_array(xbox, bool, NULL, 0444);
  92 MODULE_PARM_DESC(xbox, "Set to 1 for Xbox, if you have problems with the AC'97 codec detection.");
  93
  94 /*
  95  *  Direct registers
  96  */
  97
  98 #ifndef PCI_DEVICE_ID_INTEL_82801
  99 #define PCI_DEVICE_ID_INTEL_82801       0x2415
 100 #endif
 101 #ifndef PCI_DEVICE_ID_INTEL_82901
 102 #define PCI_DEVICE_ID_INTEL_82901       0x2425
 103 #endif
 104 #ifndef PCI_DEVICE_ID_INTEL_82801BA
 105 #define PCI_DEVICE_ID_INTEL_82801BA     0x2445
 106 #endif
 107 #ifndef PCI_DEVICE_ID_INTEL_440MX
 108 #define PCI_DEVICE_ID_INTEL_440MX       0x7195
 109 #endif
 110 #ifndef PCI_DEVICE_ID_INTEL_ICH3
 111 #define PCI_DEVICE_ID_INTEL_ICH3        0x2485
 112 #endif
 113 #ifndef PCI_DEVICE_ID_INTEL_ICH4
 114 #define PCI_DEVICE_ID_INTEL_ICH4        0x24c5
 115 #endif
 116 #ifndef PCI_DEVICE_ID_INTEL_ICH5
 117 #define PCI_DEVICE_ID_INTEL_ICH5        0x24d5
 118 #endif
 119 #ifndef PCI_DEVICE_ID_INTEL_ESB_5
 120 #define PCI_DEVICE_ID_INTEL_ESB_5       0x25a6
 121 #endif
 122 #ifndef PCI_DEVICE_ID_INTEL_ICH6_18
 123 #define PCI_DEVICE_ID_INTEL_ICH6_18     0x266e
 124 #endif
 125 #ifndef PCI_DEVICE_ID_INTEL_ICH7_20
 126 #define PCI_DEVICE_ID_INTEL_ICH7_20     0x27de
 127 #endif
 128 #ifndef PCI_DEVICE_ID_INTEL_ESB2_14
 129 #define PCI_DEVICE_ID_INTEL_ESB2_14     0x2698
 130 #endif
 131 #ifndef PCI_DEVICE_ID_SI_7012
 132 #define PCI_DEVICE_ID_SI_7012           0x7012
 133 #endif
 134 #ifndef PCI_DEVICE_ID_NVIDIA_MCP_AUDIO
 135 #define PCI_DEVICE_ID_NVIDIA_MCP_AUDIO  0x01b1
 136 #endif
 137 #ifndef PCI_DEVICE_ID_NVIDIA_CK804_AUDIO
 138 #define PCI_DEVICE_ID_NVIDIA_CK804_AUDIO 0x0059
 139 #endif
 140 #ifndef PCI_DEVICE_ID_NVIDIA_MCP2_AUDIO
 141 #define PCI_DEVICE_ID_NVIDIA_MCP2_AUDIO 0x006a
 142 #endif
 143 #ifndef PCI_DEVICE_ID_NVIDIA_CK8_AUDIO
 144 #define PCI_DEVICE_ID_NVIDIA_CK8_AUDIO  0x008a
 145 #endif
 146 #ifndef PCI_DEVICE_ID_NVIDIA_MCP3_AUDIO
 147 #define PCI_DEVICE_ID_NVIDIA_MCP3_AUDIO 0x00da
 148 #endif
 149 #ifndef PCI_DEVICE_ID_NVIDIA_CK8S_AUDIO
 150 #define PCI_DEVICE_ID_NVIDIA_CK8S_AUDIO 0x00ea
 151 #endif
 152
 153 enum { DEVICE_INTEL, DEVICE_INTEL_ICH4, DEVICE_SIS, DEVICE_ALI, DEVICE_NFORCE };
 154
 155 #define ICHREG(x) ICH_REG_##x
 156
 157 #define DEFINE_REGSET(name,base) \
 158 enum { \
 159         ICH_REG_##name##_BDBAR  = base + 0x0,   /* dword - buffer descriptor list base address */ \
 160         ICH_REG_##name##_CIV    = base + 0x04,  /* byte - current index value */ \
 161         ICH_REG_##name##_LVI    = base + 0x05,  /* byte - last valid index */ \
 162         ICH_REG_##name##_SR     = base + 0x06,  /* byte - status register */ \
 163         ICH_REG_##name##_PICB   = base + 0x08,  /* word - position in current buffer */ \
 164         ICH_REG_##name##_PIV    = base + 0x0a,  /* byte - prefetched index value */ \
 165         ICH_REG_##name##_CR     = base + 0x0b,  /* byte - control register */ \
 166 };
 167
 168 /* busmaster blocks */
 169 DEFINE_REGSET(OFF, 0);          /* offset */
 170 DEFINE_REGSET(PI, 0x00);        /* PCM in */
 171 DEFINE_REGSET(PO, 0x10);        /* PCM out */
 172 DEFINE_REGSET(MC, 0x20);        /* Mic in */
 173
 174 /* ICH4 busmaster blocks */
 175 DEFINE_REGSET(MC2, 0x40);       /* Mic in 2 */
 176 DEFINE_REGSET(PI2, 0x50);       /* PCM in 2 */
 177 DEFINE_REGSET(SP, 0x60);        /* SPDIF out */
 178
 179 /* values for each busmaster block */
 180
 181 /* LVI */
 182 #define ICH_REG_LVI_MASK                0x1f
 183
 184 /* SR */
 185 #define ICH_FIFOE                       0x10    /* FIFO error */
 186 #define ICH_BCIS                        0x08    /* buffer completion interrupt status */
 187 #define ICH_LVBCI                       0x04    /* last valid buffer completion interrupt */
 188 #define ICH_CELV                        0x02    /* current equals last valid */
 189 #define ICH_DCH                         0x01    /* DMA controller halted */
 190
 191 /* PIV */
 192 #define ICH_REG_PIV_MASK                0x1f    /* mask */
 193
 194 /* CR */
 195 #define ICH_IOCE                        0x10    /* interrupt on completion enable */
 196 #define ICH_FEIE                        0x08    /* fifo error interrupt enable */
 197 #define ICH_LVBIE                       0x04    /* last valid buffer interrupt enable */
 198 #define ICH_RESETREGS                   0x02    /* reset busmaster registers */
 199 #define ICH_STARTBM                     0x01    /* start busmaster operation */
 200
 201
 202 /* global block */
 203 #define ICH_REG_GLOB_CNT                0x2c    /* dword - global control */
 204 #define   ICH_PCM_SPDIF_MASK    0xc0000000      /* s/pdif pcm slot mask (ICH4) */
 205 #define   ICH_PCM_SPDIF_NONE    0x00000000      /* reserved - undefined */
 206 #define   ICH_PCM_SPDIF_78      0x40000000      /* s/pdif pcm on slots 7&8 */
 207 #define   ICH_PCM_SPDIF_69      0x80000000      /* s/pdif pcm on slots 6&9 */
 208 #define   ICH_PCM_SPDIF_1011    0xc0000000      /* s/pdif pcm on slots 10&11 */
 209 #define   ICH_PCM_20BIT         0x00400000      /* 20-bit samples (ICH4) */
 210 #define   ICH_PCM_246_MASK      0x00300000      /* 6 channels (not all chips) */
 211 #define   ICH_PCM_6             0x00200000      /* 6 channels (not all chips) */
 212 #define   ICH_PCM_4             0x00100000      /* 4 channels (not all chips) */
 213 #define   ICH_PCM_2             0x00000000      /* 2 channels (stereo) */
 214 #define   ICH_SIS_PCM_246_MASK  0x000000c0      /* 6 channels (SIS7012) */
 215 #define   ICH_SIS_PCM_6         0x00000080      /* 6 channels (SIS7012) */
 216 #define   ICH_SIS_PCM_4         0x00000040      /* 4 channels (SIS7012) */
 217 #define   ICH_SIS_PCM_2         0x00000000      /* 2 channels (SIS7012) */
 218 #define   ICH_TRIE              0x00000040      /* tertiary resume interrupt enable */
 219 #define   ICH_SRIE              0x00000020      /* secondary resume interrupt enable */
 220 #define   ICH_PRIE              0x00000010      /* primary resume interrupt enable */
 221 #define   ICH_ACLINK            0x00000008      /* AClink shut off */
 222 #define   ICH_AC97WARM          0x00000004      /* AC'97 warm reset */
 223 #define   ICH_AC97COLD          0x00000002      /* AC'97 cold reset */
 224 #define   ICH_GIE               0x00000001      /* GPI interrupt enable */
 225 #define ICH_REG_GLOB_STA                0x30    /* dword - global status */
 226 #define   ICH_TRI               0x20000000      /* ICH4: tertiary (AC_SDIN2) resume interrupt */
 227 #define   ICH_TCR               0x10000000      /* ICH4: tertiary (AC_SDIN2) codec ready */
 228 #define   ICH_BCS               0x08000000      /* ICH4: bit clock stopped */
 229 #define   ICH_SPINT             0x04000000      /* ICH4: S/PDIF interrupt */
 230 #define   ICH_P2INT             0x02000000      /* ICH4: PCM2-In interrupt */
 231 #define   ICH_M2INT             0x01000000      /* ICH4: Mic2-In interrupt */
 232 #define   ICH_SAMPLE_CAP        0x00c00000      /* ICH4: sample capability bits (RO) */
 233 #define   ICH_SAMPLE_16_20      0x00400000      /* ICH4: 16- and 20-bit samples */
 234 #define   ICH_MULTICHAN_CAP     0x00300000      /* ICH4: multi-channel capability bits (RO) */
 235 #define   ICH_MD3               0x00020000      /* modem power down semaphore */
 236 #define   ICH_AD3               0x00010000      /* audio power down semaphore */
 237 #define   ICH_RCS               0x00008000      /* read completion status */
 238 #define   ICH_BIT3              0x00004000      /* bit 3 slot 12 */
 239 #define   ICH_BIT2              0x00002000      /* bit 2 slot 12 */
 240 #define   ICH_BIT1              0x00001000      /* bit 1 slot 12 */
 241 #define   ICH_SRI               0x00000800      /* secondary (AC_SDIN1) resume interrupt */
 242 #define   ICH_PRI               0x00000400      /* primary (AC_SDIN0) resume interrupt */
 243 #define   ICH_SCR               0x00000200      /* secondary (AC_SDIN1) codec ready */
 244 #define   ICH_PCR               0x00000100      /* primary (AC_SDIN0) codec ready */
 245 #define   ICH_MCINT             0x00000080      /* MIC capture interrupt */
 246 #define   ICH_POINT             0x00000040      /* playback interrupt */
 247 #define   ICH_PIINT             0x00000020      /* capture interrupt */
 248 #define   ICH_NVSPINT           0x00000010      /* nforce spdif interrupt */
 249 #define   ICH_MOINT             0x00000004      /* modem playback interrupt */
 250 #define   ICH_MIINT             0x00000002      /* modem capture interrupt */
 251 #define   ICH_GSCI              0x00000001      /* GPI status change interrupt */
 252 #define ICH_REG_ACC_SEMA                0x34    /* byte - codec write semaphore */
 253 #define   ICH_CAS               0x01            /* codec access semaphore */
 254 #define ICH_REG_SDM             0x80
 255 #define   ICH_DI2L_MASK         0x000000c0      /* PCM In 2, Mic In 2 data in line */
 256 #define   ICH_DI2L_SHIFT        6
 257 #define   ICH_DI1L_MASK         0x00000030      /* PCM In 1, Mic In 1 data in line */
 258 #define   ICH_DI1L_SHIFT        4
 259 #define   ICH_SE                0x00000008      /* steer enable */
 260 #define   ICH_LDI_MASK          0x00000003      /* last codec read data input */
 261
 262 #define ICH_MAX_FRAGS           32              /* max hw frags */
 263
 264
 265 /*
 266  * registers for Ali5455
 267  */
 268
 269 /* ALi 5455 busmaster blocks */
 270 DEFINE_REGSET(AL_PI, 0x40);     /* ALi PCM in */
 271 DEFINE_REGSET(AL_PO, 0x50);     /* Ali PCM out */
 272 DEFINE_REGSET(AL_MC, 0x60);     /* Ali Mic in */
 273 DEFINE_REGSET(AL_CDC_SPO, 0x70);        /* Ali Codec SPDIF out */
 274 DEFINE_REGSET(AL_CENTER, 0x80);         /* Ali center out */
 275 DEFINE_REGSET(AL_LFE, 0x90);            /* Ali center out */
 276 DEFINE_REGSET(AL_CLR_SPI, 0xa0);        /* Ali Controller SPDIF in */
 277 DEFINE_REGSET(AL_CLR_SPO, 0xb0);        /* Ali Controller SPDIF out */
 278 DEFINE_REGSET(AL_I2S, 0xc0);    /* Ali I2S in */
 279 DEFINE_REGSET(AL_PI2, 0xd0);    /* Ali PCM2 in */
 280 DEFINE_REGSET(AL_MC2, 0xe0);    /* Ali Mic2 in */
 281
 282 enum {
 283         ICH_REG_ALI_SCR = 0x00,         /* System Control Register */
 284         ICH_REG_ALI_SSR = 0x04,         /* System Status Register  */
 285         ICH_REG_ALI_DMACR = 0x08,       /* DMA Control Register    */
 286         ICH_REG_ALI_FIFOCR1 = 0x0c,     /* FIFO Control Register 1  */
 287         ICH_REG_ALI_INTERFACECR = 0x10, /* Interface Control Register */
 288         ICH_REG_ALI_INTERRUPTCR = 0x14, /* Interrupt control Register */
 289         ICH_REG_ALI_INTERRUPTSR = 0x18, /* Interrupt  Status Register */
 290         ICH_REG_ALI_FIFOCR2 = 0x1c,     /* FIFO Control Register 2   */
 291         ICH_REG_ALI_CPR = 0x20,         /* Command Port Register     */
 292         ICH_REG_ALI_CPR_ADDR = 0x22,    /* ac97 addr write */
 293         ICH_REG_ALI_SPR = 0x24,         /* Status Port Register      */
 294         ICH_REG_ALI_SPR_ADDR = 0x26,    /* ac97 addr read */
 295         ICH_REG_ALI_FIFOCR3 = 0x2c,     /* FIFO Control Register 3  */
 296         ICH_REG_ALI_TTSR = 0x30,        /* Transmit Tag Slot Register */
 297         ICH_REG_ALI_RTSR = 0x34,        /* Receive Tag Slot  Register */
 298         ICH_REG_ALI_CSPSR = 0x38,       /* Command/Status Port Status Register */
 299         ICH_REG_ALI_CAS = 0x3c,         /* Codec Write Semaphore Register */
 300         ICH_REG_ALI_HWVOL = 0xf0,       /* hardware volume control/status */
 301         ICH_REG_ALI_I2SCR = 0xf4,       /* I2S control/status */
 302         ICH_REG_ALI_SPDIFCSR = 0xf8,    /* spdif channel status register  */
 303         ICH_REG_ALI_SPDIFICS = 0xfc,    /* spdif interface control/status  */
 304 };
 305
 306 #define ALI_CAS_SEM_BUSY        0x80000000
 307 #define ALI_CPR_ADDR_SECONDARY  0x100
 308 #define ALI_CPR_ADDR_READ       0x80
 309 #define ALI_CSPSR_CODEC_READY   0x08
 310 #define ALI_CSPSR_READ_OK       0x02
 311 #define ALI_CSPSR_WRITE_OK      0x01
 312
 313 /* interrupts for the whole chip by interrupt status register finish */
 314
 315 #define ALI_INT_MICIN2          (1<<26)
 316 #define ALI_INT_PCMIN2          (1<<25)
 317 #define ALI_INT_I2SIN           (1<<24)
 318 #define ALI_INT_SPDIFOUT        (1<<23) /* controller spdif out INTERRUPT */
 319 #define ALI_INT_SPDIFIN         (1<<22)
 320 #define ALI_INT_LFEOUT          (1<<21)
 321 #define ALI_INT_CENTEROUT       (1<<20)
 322 #define ALI_INT_CODECSPDIFOUT   (1<<19)
 323 #define ALI_INT_MICIN           (1<<18)
 324 #define ALI_INT_PCMOUT          (1<<17)
 325 #define ALI_INT_PCMIN           (1<<16)
 326 #define ALI_INT_CPRAIS          (1<<7)  /* command port available */
 327 #define ALI_INT_SPRAIS          (1<<5)  /* status port available */
 328 #define ALI_INT_GPIO            (1<<1)
 329 #define ALI_INT_MASK            (ALI_INT_SPDIFOUT|ALI_INT_CODECSPDIFOUT|ALI_INT_MICIN|ALI_INT_PCMOUT|ALI_INT_PCMIN)
 330
 331 #define ICH_ALI_SC_RESET        (1<<31) /* master reset */
 332 #define ICH_ALI_SC_AC97_DBL     (1<<30)
 333 #define ICH_ALI_SC_CODEC_SPDF   (3<<20) /* 1=7/8, 2=6/9, 3=10/11 */
 334 #define ICH_ALI_SC_IN_BITS      (3<<18)
 335 #define ICH_ALI_SC_OUT_BITS     (3<<16)
 336 #define ICH_ALI_SC_6CH_CFG      (3<<14)
 337 #define ICH_ALI_SC_PCM_4        (1<<8)
 338 #define ICH_ALI_SC_PCM_6        (2<<8)
 339 #define ICH_ALI_SC_PCM_246_MASK (3<<8)
 340
 341 #define ICH_ALI_SS_SEC_ID       (3<<5)
 342 #define ICH_ALI_SS_PRI_ID       (3<<3)
 343
 344 #define ICH_ALI_IF_AC97SP       (1<<21)
 345 #define ICH_ALI_IF_MC           (1<<20)
 346 #define ICH_ALI_IF_PI           (1<<19)
 347 #define ICH_ALI_IF_MC2          (1<<18)
 348 #define ICH_ALI_IF_PI2          (1<<17)
 349 #define ICH_ALI_IF_LINE_SRC     (1<<15) /* 0/1 = slot 3/6 */
 350 #define ICH_ALI_IF_MIC_SRC      (1<<14) /* 0/1 = slot 3/6 */
 351 #define ICH_ALI_IF_SPDF_SRC     (3<<12) /* 00 = PCM, 01 = AC97-in, 10 = spdif-in, 11 = i2s */
 352 #define ICH_ALI_IF_AC97_OUT     (3<<8)  /* 00 = PCM, 10 = spdif-in, 11 = i2s */
 353 #define ICH_ALI_IF_PO_SPDF      (1<<3)
 354 #define ICH_ALI_IF_PO           (1<<1)
 355
 356 /*
 357  *
 358  */
 359
 360 enum { ICHD_PCMIN, ICHD_PCMOUT, ICHD_MIC, ICHD_MIC2, ICHD_PCM2IN, ICHD_SPBAR, ICHD_LAST = ICHD_SPBAR };
 361 enum { NVD_PCMIN, NVD_PCMOUT, NVD_MIC, NVD_SPBAR, NVD_LAST = NVD_SPBAR };
 362 enum { ALID_PCMIN, ALID_PCMOUT, ALID_MIC, ALID_AC97SPDIFOUT, ALID_SPDIFIN, ALID_SPDIFOUT, ALID_LAST = ALID_SPDIFOUT };
 363
 364 #define get_ichdev(substream) (ichdev_t *)(substream->runtime->private_data)
 365
 366 typedef struct {
 367         unsigned int ichd;                      /* ich device number */
 368         unsigned long reg_offset;               /* offset to bmaddr */
 369         u32 *bdbar;                             /* CPU address (32bit) */
 370         unsigned int bdbar_addr;                /* PCI bus address (32bit) */
 371         snd_pcm_substream_t *substream;
 372         unsigned int physbuf;                   /* physical address (32bit) */
 373         unsigned int size;
 374         unsigned int fragsize;
 375         unsigned int fragsize1;
 376         unsigned int position;
 377         unsigned int pos_shift;
 378         int frags;
 379         int lvi;
 380         int lvi_frag;
 381         int civ;
 382         int ack;
 383         int ack_reload;
 384         unsigned int ack_bit;
 385         unsigned int roff_sr;
 386         unsigned int roff_picb;
 387         unsigned int int_sta_mask;              /* interrupt status mask */
 388         unsigned int ali_slot;                  /* ALI DMA slot */
 389         struct ac97_pcm *pcm;
 390         int pcm_open_flag;
 391         unsigned int page_attr_changed: 1;
 392 } ichdev_t;
 393
 394 typedef struct _snd_intel8x0 intel8x0_t;
 395
 396 struct _snd_intel8x0 {
 397         unsigned int device_type;
 398
 399         int irq;
 400
 401         unsigned int mmio;
 402         unsigned long addr;
 403         void __iomem *remap_addr;
 404         unsigned int bm_mmio;
 405         unsigned long bmaddr;
 406         void __iomem *remap_bmaddr;
 407
 408         struct pci_dev *pci;
 409         snd_card_t *card;
 410
 411         int pcm_devs;
 412         snd_pcm_t *pcm[6];
 413         ichdev_t ichd[6];
 414
 415         unsigned multi4: 1,
 416                  multi6: 1,
 417                  dra: 1,
 418                  smp20bit: 1;
 419         unsigned in_ac97_init: 1,
 420                  in_sdin_init: 1;
 421         unsigned in_measurement: 1;     /* during ac97 clock measurement */
 422         unsigned fix_nocache: 1;        /* workaround for 440MX */
 423         unsigned buggy_irq: 1;          /* workaround for buggy mobos */
 424         unsigned xbox: 1;               /* workaround for Xbox AC'97 detection */
 425
 426         int spdif_idx;  /* SPDIF BAR index; *_SPBAR or -1 if use PCMOUT */
 427
 428         ac97_bus_t *ac97_bus;
 429         ac97_t *ac97[3];
 430         unsigned int ac97_sdin[3];
 431
 432         spinlock_t reg_lock;
 433
 434         u32 bdbars_count;
 435         struct snd_dma_buffer bdbars;
 436         u32 int_sta_reg;                /* interrupt status register */
 437         u32 int_sta_mask;               /* interrupt status mask */
 438 };
 439
 440 static struct pci_device_id snd_intel8x0_ids[] = {
 441         { 0x8086, 0x2415, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL }, /* 82801AA */
 442         { 0x8086, 0x2425, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL }, /* 82901AB */
 443         { 0x8086, 0x2445, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL }, /* 82801BA */
 444         { 0x8086, 0x2485, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL }, /* ICH3 */
 445         { 0x8086, 0x24c5, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL_ICH4 }, /* ICH4 */
 446         { 0x8086, 0x24d5, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL_ICH4 }, /* ICH5 */
 447         { 0x8086, 0x25a6, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL_ICH4 }, /* ESB */
 448         { 0x8086, 0x266e, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL_ICH4 }, /* ICH6 */
 449         { 0x8086, 0x27de, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL_ICH4 }, /* ICH7 */
 450         { 0x8086, 0x2698, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL_ICH4 }, /* ESB2 */
 451         { 0x8086, 0x7195, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL }, /* 440MX */
 452         { 0x1039, 0x7012, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_SIS },   /* SI7012 */
 453         { 0x10de, 0x01b1, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_NFORCE },        /* NFORCE */
 454         { 0x10de, 0x003a, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_NFORCE },        /* MCP04 */
 455         { 0x10de, 0x006a, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_NFORCE },        /* NFORCE2 */
 456         { 0x10de, 0x0059, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_NFORCE },        /* CK804 */
 457         { 0x10de, 0x008a, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_NFORCE },        /* CK8 */
 458         { 0x10de, 0x00da, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_NFORCE },        /* NFORCE3 */
 459         { 0x10de, 0x00ea, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_NFORCE },        /* CK8S */
 460         { 0x1022, 0x746d, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL }, /* AMD8111 */
 461         { 0x1022, 0x7445, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_INTEL }, /* AMD768 */
 462         { 0x10b9, 0x5455, PCI_ANY_ID, PCI_ANY_ID, 0, 0, DEVICE_ALI },   /* Ali5455 */
 463         { 0, }
 464 };
 465
 466 MODULE_DEVICE_TABLE(pci, snd_intel8x0_ids);
 467
 468 /*
 469  *  Lowlevel I/O - busmaster
 470  */
 471
 472 static u8 igetbyte(intel8x0_t *chip, u32 offset)
 473 {
 474         if (chip->bm_mmio)
 475                 return readb(chip->remap_bmaddr + offset);
 476         else
 477                 return inb(chip->bmaddr + offset);
 478 }
 479
 480 static u16 igetword(intel8x0_t *chip, u32 offset)
 481 {
 482         if (chip->bm_mmio)
 483                 return readw(chip->remap_bmaddr + offset);
 484         else
 485                 return inw(chip->bmaddr + offset);
 486 }
 487
 488 static u32 igetdword(intel8x0_t *chip, u32 offset)
 489 {
 490         if (chip->bm_mmio)
 491                 return readl(chip->remap_bmaddr + offset);
 492         else
 493                 return inl(chip->bmaddr + offset);
 494 }
 495
 496 static void iputbyte(intel8x0_t *chip, u32 offset, u8 val)
 497 {
 498         if (chip->bm_mmio)
 499                 writeb(val, chip->remap_bmaddr + offset);
 500         else
 501                 outb(val, chip->bmaddr + offset);
 502 }
 503
 504 static void iputword(intel8x0_t *chip, u32 offset, u16 val)
 505 {
 506         if (chip->bm_mmio)
 507                 writew(val, chip->remap_bmaddr + offset);
 508         else
 509                 outw(val, chip->bmaddr + offset);
 510 }
 511
 512 static void iputdword(intel8x0_t *chip, u32 offset, u32 val)
 513 {
 514         if (chip->bm_mmio)
 515                 writel(val, chip->remap_bmaddr + offset);
 516         else
 517                 outl(val, chip->bmaddr + offset);
 518 }
 519
 520 /*
 521  *  Lowlevel I/O - AC'97 registers
 522  */
 523
 524 static u16 iagetword(intel8x0_t *chip, u32 offset)
 525 {
 526         if (chip->mmio)
 527                 return readw(chip->remap_addr + offset);
 528         else
 529                 return inw(chip->addr + offset);
 530 }
 531
 532 static void iaputword(intel8x0_t *chip, u32 offset, u16 val)
 533 {
 534         if (chip->mmio)
 535                 writew(val, chip->remap_addr + offset);
 536         else
 537                 outw(val, chip->addr + offset);
 538 }
 539
 540 /*
 541  *  Basic I/O
 542  */
 543
 544 /*
 545  * access to AC97 codec via normal i/o (for ICH and SIS7012)
 546  */
 547
 548 /* return the GLOB_STA bit for the corresponding codec */
 549 static unsigned int get_ich_codec_bit(intel8x0_t *chip, unsigned int codec)
 550 {
 551         static unsigned int codec_bit[3] = {
 552                 ICH_PCR, ICH_SCR, ICH_TCR
 553         };
 554         snd_assert(codec < 3, return ICH_PCR);
 555         if (chip->device_type == DEVICE_INTEL_ICH4)
 556                 codec = chip->ac97_sdin[codec];
 557         return codec_bit[codec];
 558 }
 559
 560 static int snd_intel8x0_codec_semaphore(intel8x0_t *chip, unsigned int codec)
 561 {
 562         int time;
 563
 564         if (codec > 2)
 565                 return -EIO;
 566         if (chip->in_sdin_init) {
 567                 /* we don't know the ready bit assignment at the moment */
 568                 /* so we check any */
 569                 codec = ICH_PCR | ICH_SCR | ICH_TCR;
 570         } else {
 571                 codec = get_ich_codec_bit(chip, codec);
 572         }
 573
 574         /* codec ready ? */
 575         if ((igetdword(chip, ICHREG(GLOB_STA)) & codec) == 0)
 576                 return -EIO;
 577
 578         /* Anyone holding a semaphore for 1 msec should be shot... */
 579         time = 100;
 580         do {
 581                 if (!(igetbyte(chip, ICHREG(ACC_SEMA)) & ICH_CAS))
 582                         return 0;
 583                 udelay(10);
 584         } while (time--);
 585
 586         /* access to some forbidden (non existant) ac97 registers will not
 587          * reset the semaphore. So even if you don't get the semaphore, still
 588          * continue the access. We don't need the semaphore anyway. */
 589         snd_printk("codec_semaphore: semaphore is not ready [0x%x][0x%x]\n",
 590                         igetbyte(chip, ICHREG(ACC_SEMA)), igetdword(chip, ICHREG(GLOB_STA)));
 591         iagetword(chip, 0);     /* clear semaphore flag */
 592         /* I don't care about the semaphore */
 593         return -EBUSY;
 594 }
 595
 596 static void snd_intel8x0_codec_write(ac97_t *ac97,
 597                                      unsigned short reg,
 598                                      unsigned short val)
 599 {
 600         intel8x0_t *chip = ac97->private_data;
 601
 602         if (snd_intel8x0_codec_semaphore(chip, ac97->num) < 0) {
 603                 if (! chip->in_ac97_init)
 604                         snd_printk("codec_write %d: semaphore is not ready for register 0x%x\n", ac97->num, reg);
 605         }
 606         iaputword(chip, reg + ac97->num * 0x80, val);
 607 }
 608
 609 static unsigned short snd_intel8x0_codec_read(ac97_t *ac97,
 610                                               unsigned short reg)
 611 {
 612         intel8x0_t *chip = ac97->private_data;
 613         unsigned short res;
 614         unsigned int tmp;
 615
 616         if (snd_intel8x0_codec_semaphore(chip, ac97->num) < 0) {
 617                 if (! chip->in_ac97_init)
 618                         snd_printk("codec_read %d: semaphore is not ready for register 0x%x\n", ac97->num, reg);
 619                 res = 0xffff;
 620         } else {
 621                 res = iagetword(chip, reg + ac97->num * 0x80);
 622                 if ((tmp = igetdword(chip, ICHREG(GLOB_STA))) & ICH_RCS) {
 623                         /* reset RCS and preserve other R/WC bits */
 624                         iputdword(chip, ICHREG(GLOB_STA), tmp & ~(ICH_SRI|ICH_PRI|ICH_TRI|ICH_GSCI));
 625                         if (! chip->in_ac97_init)
 626                                 snd_printk("codec_read %d: read timeout for register 0x%x\n", ac97->num, reg);
 627                         res = 0xffff;
 628                 }
 629         }
 630         return res;
 631 }
 632
 633 static void snd_intel8x0_codec_read_test(intel8x0_t *chip, unsigned int codec)
 634 {
 635         unsigned int tmp;
 636
 637         if (snd_intel8x0_codec_semaphore(chip, codec) >= 0) {
 638                 iagetword(chip, codec * 0x80);
 639                 if ((tmp = igetdword(chip, ICHREG(GLOB_STA))) & ICH_RCS) {
 640                         /* reset RCS and preserve other R/WC bits */
 641                         iputdword(chip, ICHREG(GLOB_STA), tmp & ~(ICH_SRI|ICH_PRI|ICH_TRI|ICH_GSCI));
 642                 }
 643         }
 644 }
 645
 646 /*
 647  * access to AC97 for Ali5455
 648  */
 649 static int snd_intel8x0_ali_codec_ready(intel8x0_t *chip, int mask)
 650 {
 651         int count = 0;
 652         for (count = 0; count < 0x7f; count++) {
 653                 int val = igetbyte(chip, ICHREG(ALI_CSPSR));
 654                 if (val & mask)
 655                         return 0;
 656         }
 657         snd_printd(KERN_WARNING "intel8x0: AC97 codec ready timeout.\n");
 658         return -EBUSY;
 659 }
 660
 661 static int snd_intel8x0_ali_codec_semaphore(intel8x0_t *chip)
 662 {
 663         int time = 100;
 664         while (time-- && (igetdword(chip, ICHREG(ALI_CAS)) & ALI_CAS_SEM_BUSY))
 665                 udelay(1);
 666         if (! time)
 667                 snd_printk(KERN_WARNING "ali_codec_semaphore timeout\n");
 668         return snd_intel8x0_ali_codec_ready(chip, ALI_CSPSR_CODEC_READY);
 669 }
 670
 671 static unsigned short snd_intel8x0_ali_codec_read(ac97_t *ac97, unsigned short reg)
 672 {
 673         intel8x0_t *chip = ac97->private_data;
 674         unsigned short data = 0xffff;
 675
 676         if (snd_intel8x0_ali_codec_semaphore(chip))
 677                 goto __err;
 678         reg |= ALI_CPR_ADDR_READ;
 679         if (ac97->num)
 680                 reg |= ALI_CPR_ADDR_SECONDARY;
 681         iputword(chip, ICHREG(ALI_CPR_ADDR), reg);
 682         if (snd_intel8x0_ali_codec_ready(chip, ALI_CSPSR_READ_OK))
 683                 goto __err;
 684         data = igetword(chip, ICHREG(ALI_SPR));
 685  __err:
 686         return data;
 687 }
 688
 689 static void snd_intel8x0_ali_codec_write(ac97_t *ac97, unsigned short reg, unsigned short val)
 690 {
 691         intel8x0_t *chip = ac97->private_data;
 692
 693         if (snd_intel8x0_ali_codec_semaphore(chip))
 694                 return;
 695         iputword(chip, ICHREG(ALI_CPR), val);
 696         if (ac97->num)
 697                 reg |= ALI_CPR_ADDR_SECONDARY;
 698         iputword(chip, ICHREG(ALI_CPR_ADDR), reg);
 699         snd_intel8x0_ali_codec_ready(chip, ALI_CSPSR_WRITE_OK);
 700 }
 701
 702
 703 /*
 704  * DMA I/O
 705  */
 706 static void snd_intel8x0_setup_periods(intel8x0_t *chip, ichdev_t *ichdev)
 707 {
 708         int idx;
 709         u32 *bdbar = ichdev->bdbar;
 710         unsigned long port = ichdev->reg_offset;
 711
 712         iputdword(chip, port + ICH_REG_OFF_BDBAR, ichdev->bdbar_addr);
 713         if (ichdev->size == ichdev->fragsize) {
 714                 ichdev->ack_reload = ichdev->ack = 2;
 715                 ichdev->fragsize1 = ichdev->fragsize >> 1;
 716                 for (idx = 0; idx < (ICH_REG_LVI_MASK + 1) * 2; idx += 4) {
 717                         bdbar[idx + 0] = cpu_to_le32(ichdev->physbuf);
 718                         bdbar[idx + 1] = cpu_to_le32(0x80000000 | /* interrupt on completion */
 719                                                      ichdev->fragsize1 >> ichdev->pos_shift);
 720                         bdbar[idx + 2] = cpu_to_le32(ichdev->physbuf + (ichdev->size >> 1));
 721                         bdbar[idx + 3] = cpu_to_le32(0x80000000 | /* interrupt on completion */
 722                                                      ichdev->fragsize1 >> ichdev->pos_shift);
 723                 }
 724                 ichdev->frags = 2;
 725         } else {
 726                 ichdev->ack_reload = ichdev->ack = 1;
 727                 ichdev->fragsize1 = ichdev->fragsize;
 728                 for (idx = 0; idx < (ICH_REG_LVI_MASK + 1) * 2; idx += 2) {
 729                         bdbar[idx + 0] = cpu_to_le32(ichdev->physbuf + (((idx >> 1) * ichdev->fragsize) % ichdev->size));
 730                         bdbar[idx + 1] = cpu_to_le32(0x80000000 | /* interrupt on completion */
 731                                                      ichdev->fragsize >> ichdev->pos_shift);
 732                         // printk("bdbar[%i] = 0x%x [0x%x]\n", idx + 0, bdbar[idx + 0], bdbar[idx + 1]);
 733                 }
 734                 ichdev->frags = ichdev->size / ichdev->fragsize;
 735         }
 736         iputbyte(chip, port + ICH_REG_OFF_LVI, ichdev->lvi = ICH_REG_LVI_MASK);
 737         ichdev->civ = 0;
 738         iputbyte(chip, port + ICH_REG_OFF_CIV, 0);
 739         ichdev->lvi_frag = ICH_REG_LVI_MASK % ichdev->frags;
 740         ichdev->position = 0;
 741 #if 0
 742         printk("lvi_frag = %i, frags = %i, period_size = 0x%x, period_size1 = 0x%x\n",
 743                         ichdev->lvi_frag, ichdev->frags, ichdev->fragsize, ichdev->fragsize1);
 744 #endif
 745         /* clear interrupts */
 746         iputbyte(chip, port + ichdev->roff_sr, ICH_FIFOE | ICH_BCIS | ICH_LVBCI);
 747 }
 748
 749 #ifdef __i386__
 750 /*
 751  * Intel 82443MX running a 100MHz processor system bus has a hardware bug,
 752  * which aborts PCI busmaster for audio transfer.  A workaround is to set
 753  * the pages as non-cached.  For details, see the errata in
 754  *      http://www.intel.com/design/chipsets/specupdt/245051.htm
 755  */
 756 static void fill_nocache(void *buf, int size, int nocache)
 757 {
 758         size = (size + PAGE_SIZE - 1) >> PAGE_SHIFT;
 759         change_page_attr(virt_to_page(buf), size, nocache ? PAGE_KERNEL_NOCACHE : PAGE_KERNEL);
 760         global_flush_tlb();
 761 }
 762 #else
 763 #define fill_nocache(buf,size,nocache)
 764 #endif
 765
 766 /*
 767  *  Interrupt handler
 768  */
 769
 770 static inline void snd_intel8x0_update(intel8x0_t *chip, ichdev_t *ichdev)
 771 {
 772         unsigned long port = ichdev->reg_offset;
 773         int status, civ, i, step;
 774         int ack = 0;
 775
 776         spin_lock(&chip->reg_lock);
 777         status = igetbyte(chip, port + ichdev->roff_sr);
 778         civ = igetbyte(chip, port + ICH_REG_OFF_CIV);
 779         if (!(status & ICH_BCIS)) {
 780                 step = 0;
 781         } else if (civ == ichdev->civ) {
 782                 // snd_printd("civ same %d\n", civ);
 783                 step = 1;
 784                 ichdev->civ++;
 785                 ichdev->civ &= ICH_REG_LVI_MASK;
 786         } else {
 787                 step = civ - ichdev->civ;
 788                 if (step < 0)
 789                         step += ICH_REG_LVI_MASK + 1;
 790                 // if (step != 1)
 791                 //      snd_printd("step = %d, %d -> %d\n", step, ichdev->civ, civ);
 792                 ichdev->civ = civ;
 793         }
 794
 795         ichdev->position += step * ichdev->fragsize1;
 796         if (! chip->in_measurement)
 797                 ichdev->position %= ichdev->size;
 798         ichdev->lvi += step;
 799         ichdev->lvi &= ICH_REG_LVI_MASK;
 800         iputbyte(chip, port + ICH_REG_OFF_LVI, ichdev->lvi);
 801         for (i = 0; i < step; i++) {
 802                 ichdev->lvi_frag++;
 803                 ichdev->lvi_frag %= ichdev->frags;
 804                 ichdev->bdbar[ichdev->lvi * 2] = cpu_to_le32(ichdev->physbuf + ichdev->lvi_frag * ichdev->fragsize1);
 805         // printk("new: bdbar[%i] = 0x%x [0x%x], prefetch = %i, all = 0x%x, 0x%x\n", ichdev->lvi * 2, ichdev->bdbar[ichdev->lvi * 2], ichdev->bdbar[ichdev->lvi * 2 + 1], inb(ICH_REG_OFF_PIV + port), inl(port + 4), inb(port + ICH_REG_OFF_CR));
 806                 if (--ichdev->ack == 0) {
 807                         ichdev->ack = ichdev->ack_reload;
 808                         ack = 1;
 809                 }
 810         }
 811         spin_unlock(&chip->reg_lock);
 812         if (ack && ichdev->substream) {
 813                 snd_pcm_period_elapsed(ichdev->substream);
 814         }
 815         iputbyte(chip, port + ichdev->roff_sr,
 816                  status & (ICH_FIFOE | ICH_BCIS | ICH_LVBCI));
 817 }
 818
 819 static irqreturn_t snd_intel8x0_interrupt(int irq, void *dev_id, struct pt_regs *regs)
 820 {
 821         intel8x0_t *chip = dev_id;
 822         ichdev_t *ichdev;
 823         unsigned int status;
 824         unsigned int i;
 825
 826         status = igetdword(chip, chip->int_sta_reg);
 827         if (status == 0xffffffff)       /* we are not yet resumed */
 828                 return IRQ_NONE;
 829
 830         if ((status & chip->int_sta_mask) == 0) {
 831                 if (status) {
 832                         /* ack */
 833                         iputdword(chip, chip->int_sta_reg, status);
 834                         if (! chip->buggy_irq)
 835                                 status = 0;
 836                 }
 837                 return IRQ_RETVAL(status);
 838         }
 839
 840         for (i = 0; i < chip->bdbars_count; i++) {
 841                 ichdev = &chip->ichd[i];
 842                 if (status & ichdev->int_sta_mask)
 843                         snd_intel8x0_update(chip, ichdev);
 844         }
 845
 846         /* ack them */
 847         iputdword(chip, chip->int_sta_reg, status & chip->int_sta_mask);
 848
 849         return IRQ_HANDLED;
 850 }
 851
 852 /*
 853  *  PCM part
 854  */
 855
 856 static int snd_intel8x0_pcm_trigger(snd_pcm_substream_t *substream, int cmd)
 857 {
 858         intel8x0_t *chip = snd_pcm_substream_chip(substream);
 859         ichdev_t *ichdev = get_ichdev(substream);
 860         unsigned char val = 0;
 861         unsigned long port = ichdev->reg_offset;
 862
 863         switch (cmd) {
 864         case SNDRV_PCM_TRIGGER_START:
 865         case SNDRV_PCM_TRIGGER_RESUME:
 866                 val = ICH_IOCE | ICH_STARTBM;
 867                 break;
 868         case SNDRV_PCM_TRIGGER_STOP:
 869         case SNDRV_PCM_TRIGGER_SUSPEND:
 870                 val = 0;
 871                 break;
 872         case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
 873                 val = ICH_IOCE;
 874                 break;
 875         case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
 876                 val = ICH_IOCE | ICH_STARTBM;
 877                 break;
 878         default:
 879                 return -EINVAL;
 880         }
 881         iputbyte(chip, port + ICH_REG_OFF_CR, val);
 882         if (cmd == SNDRV_PCM_TRIGGER_STOP) {
 883                 /* wait until DMA stopped */
 884                 while (!(igetbyte(chip, port + ichdev->roff_sr) & ICH_DCH)) ;
 885                 /* reset whole DMA things */
 886                 iputbyte(chip, port + ICH_REG_OFF_CR, ICH_RESETREGS);
 887         }
 888         return 0;
 889 }
 890
 891 static int snd_intel8x0_ali_trigger(snd_pcm_substream_t *substream, int cmd)
 892 {
 893         intel8x0_t *chip = snd_pcm_substream_chip(substream);
 894         ichdev_t *ichdev = get_ichdev(substream);
 895         unsigned long port = ichdev->reg_offset;
 896         static int fiforeg[] = { ICHREG(ALI_FIFOCR1), ICHREG(ALI_FIFOCR2), ICHREG(ALI_FIFOCR3) };
 897         unsigned int val, fifo;
 898
 899         val = igetdword(chip, ICHREG(ALI_DMACR));
 900         switch (cmd) {
 901         case SNDRV_PCM_TRIGGER_START:
 902         case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
 903         case SNDRV_PCM_TRIGGER_RESUME:
 904                 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
 905                         /* clear FIFO for synchronization of channels */
 906                         fifo = igetdword(chip, fiforeg[ichdev->ali_slot / 4]);
 907                         fifo &= ~(0xff << (ichdev->ali_slot % 4));
 908                         fifo |= 0x83 << (ichdev->ali_slot % 4);
 909                         iputdword(chip, fiforeg[ichdev->ali_slot / 4], fifo);
 910                 }
 911                 iputbyte(chip, port + ICH_REG_OFF_CR, ICH_IOCE);
 912                 val &= ~(1 << (ichdev->ali_slot + 16)); /* clear PAUSE flag */
 913                 iputdword(chip, ICHREG(ALI_DMACR), val | (1 << ichdev->ali_slot)); /* start DMA */
 914                 break;
 915         case SNDRV_PCM_TRIGGER_STOP:
 916         case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
 917         case SNDRV_PCM_TRIGGER_SUSPEND:
 918                 iputdword(chip, ICHREG(ALI_DMACR), val | (1 << (ichdev->ali_slot + 16))); /* pause */
 919                 iputbyte(chip, port + ICH_REG_OFF_CR, 0);
 920                 while (igetbyte(chip, port + ICH_REG_OFF_CR))
 921                         ;
 922                 if (cmd == SNDRV_PCM_TRIGGER_PAUSE_PUSH)
 923                         break;
 924                 /* reset whole DMA things */
 925                 iputbyte(chip, port + ICH_REG_OFF_CR, ICH_RESETREGS);
 926                 /* clear interrupts */
 927                 iputbyte(chip, port + ICH_REG_OFF_SR, igetbyte(chip, port + ICH_REG_OFF_SR) | 0x1e);
 928                 iputdword(chip, ICHREG(ALI_INTERRUPTSR),
 929                           igetdword(chip, ICHREG(ALI_INTERRUPTSR)) & ichdev->int_sta_mask);
 930                 break;
 931         default:
 932                 return -EINVAL;
 933         }
 934         return 0;
 935 }
 936
 937 static int snd_intel8x0_hw_params(snd_pcm_substream_t * substream,
 938                                   snd_pcm_hw_params_t * hw_params)
 939 {
 940         intel8x0_t *chip = snd_pcm_substream_chip(substream);
 941         ichdev_t *ichdev = get_ichdev(substream);
 942         snd_pcm_runtime_t *runtime = substream->runtime;
 943         int dbl = params_rate(hw_params) > 48000;
 944         int err;
 945
 946         if (chip->fix_nocache && ichdev->page_attr_changed) {
 947                 fill_nocache(runtime->dma_area, runtime->dma_bytes, 0); /* clear */
 948                 ichdev->page_attr_changed = 0;
 949         }
 950         err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
 951         if (err < 0)
 952                 return err;
 953         if (chip->fix_nocache) {
 954                 if (runtime->dma_area && ! ichdev->page_attr_changed) {
 955                         fill_nocache(runtime->dma_area, runtime->dma_bytes, 1);
 956                         ichdev->page_attr_changed = 1;
 957                 }
 958         }
 959         if (ichdev->pcm_open_flag) {
 960                 snd_ac97_pcm_close(ichdev->pcm);
 961                 ichdev->pcm_open_flag = 0;
 962         }
 963         err = snd_ac97_pcm_open(ichdev->pcm, params_rate(hw_params),
 964                                 params_channels(hw_params),
 965                                 ichdev->pcm->r[dbl].slots);
 966         if (err >= 0) {
 967                 ichdev->pcm_open_flag = 1;
 968                 /* Force SPDIF setting */
 969                 if (ichdev->ichd == ICHD_PCMOUT && chip->spdif_idx < 0)
 970                         snd_ac97_set_rate(ichdev->pcm->r[0].codec[0], AC97_SPDIF, params_rate(hw_params));
 971         }
 972         return err;
 973 }
 974
 975 static int snd_intel8x0_hw_free(snd_pcm_substream_t * substream)
 976 {
 977         intel8x0_t *chip = snd_pcm_substream_chip(substream);
 978         ichdev_t *ichdev = get_ichdev(substream);
 979
 980         if (ichdev->pcm_open_flag) {
 981                 snd_ac97_pcm_close(ichdev->pcm);
 982                 ichdev->pcm_open_flag = 0;
 983         }
 984         if (chip->fix_nocache && ichdev->page_attr_changed) {
 985                 fill_nocache(substream->runtime->dma_area, substream->runtime->dma_bytes, 0);
 986                 ichdev->page_attr_changed = 0;
 987         }
 988         return snd_pcm_lib_free_pages(substream);
 989 }
 990
 991 static void snd_intel8x0_setup_pcm_out(intel8x0_t *chip,
 992                                        snd_pcm_runtime_t *runtime)
 993 {
 994         unsigned int cnt;
 995         int dbl = runtime->rate > 48000;
 996         switch (chip->device_type) {
 997         case DEVICE_ALI:
 998                 cnt = igetdword(chip, ICHREG(ALI_SCR));
 999                 cnt &= ~ICH_ALI_SC_PCM_246_MASK;
1000                 if (runtime->channels == 4 || dbl)
1001                         cnt |= ICH_ALI_SC_PCM_4;
1002                 else if (runtime->channels == 6)
1003                         cnt |= ICH_ALI_SC_PCM_6;
1004                 iputdword(chip, ICHREG(ALI_SCR), cnt);
1005                 break;
1006         case DEVICE_SIS:
1007                 cnt = igetdword(chip, ICHREG(GLOB_CNT));
1008                 cnt &= ~ICH_SIS_PCM_246_MASK;
1009                 if (runtime->channels == 4 || dbl)
1010                         cnt |= ICH_SIS_PCM_4;
1011                 else if (runtime->channels == 6)
1012                         cnt |= ICH_SIS_PCM_6;
1013                 iputdword(chip, ICHREG(GLOB_CNT), cnt);
1014                 break;
1015         default:
1016                 cnt = igetdword(chip, ICHREG(GLOB_CNT));
1017                 cnt &= ~(ICH_PCM_246_MASK | ICH_PCM_20BIT);
1018                 if (runtime->channels == 4 || dbl)
1019                         cnt |= ICH_PCM_4;
1020                 else if (runtime->channels == 6)
1021                         cnt |= ICH_PCM_6;
1022                 if (chip->device_type == DEVICE_NFORCE) {
1023                         /* reset to 2ch once to keep the 6 channel data in alignment,
1024                          * to start from Front Left always
1025                          */
1026                         if (cnt & ICH_PCM_246_MASK) {
1027                                 iputdword(chip, ICHREG(GLOB_CNT), cnt & ~ICH_PCM_246_MASK);
1028                                 spin_unlock_irq(&chip->reg_lock);
1029                                 msleep(50); /* grrr... */
1030                                 spin_lock_irq(&chip->reg_lock);
1031                         }
1032                 } else if (chip->device_type == DEVICE_INTEL_ICH4) {
1033                         if (runtime->sample_bits > 16)
1034                                 cnt |= ICH_PCM_20BIT;
1035                 }
1036                 iputdword(chip, ICHREG(GLOB_CNT), cnt);
1037                 break;
1038         }
1039 }
1040
1041 static int snd_intel8x0_pcm_prepare(snd_pcm_substream_t * substream)
1042 {
1043         intel8x0_t *chip = snd_pcm_substream_chip(substream);
1044         snd_pcm_runtime_t *runtime = substream->runtime;
1045         ichdev_t *ichdev = get_ichdev(substream);
1046
1047         ichdev->physbuf = runtime->dma_addr;
1048         ichdev->size = snd_pcm_lib_buffer_bytes(substream);
1049         ichdev->fragsize = snd_pcm_lib_period_bytes(substream);
1050         spin_lock_irq(&chip->reg_lock);
1051         if (ichdev->ichd == ICHD_PCMOUT) {
1052                 snd_intel8x0_setup_pcm_out(chip, runtime);
1053                 if (chip->device_type == DEVICE_INTEL_ICH4) {
1054                         ichdev->pos_shift = (runtime->sample_bits > 16) ? 2 : 1;
1055                 }
1056         }
1057         snd_intel8x0_setup_periods(chip, ichdev);
1058         spin_unlock_irq(&chip->reg_lock);
1059         return 0;
1060 }
1061
1062 static snd_pcm_uframes_t snd_intel8x0_pcm_pointer(snd_pcm_substream_t * substream)
1063 {
1064         intel8x0_t *chip = snd_pcm_substream_chip(substream);
1065         ichdev_t *ichdev = get_ichdev(substream);
1066         size_t ptr1, ptr;
1067         int civ, timeout = 100;
1068         unsigned int position;
1069
1070         spin_lock(&chip->reg_lock);
1071         do {
1072                 civ = igetbyte(chip, ichdev->reg_offset + ICH_REG_OFF_CIV);
1073                 ptr1 = igetword(chip, ichdev->reg_offset + ichdev->roff_picb);
1074                 position = ichdev->position;
1075                 if (ptr1 == 0) {
1076                         udelay(10);
1077                         continue;
1078                 }
1079                 if (civ == igetbyte(chip, ichdev->reg_offset + ICH_REG_OFF_CIV) &&
1080                     ptr1 == igetword(chip, ichdev->reg_offset + ichdev->roff_picb))
1081                         break;
1082         } while (timeout--);
1083         ptr1 <<= ichdev->pos_shift;
1084         ptr = ichdev->fragsize1 - ptr1;
1085         ptr += position;
1086         spin_unlock(&chip->reg_lock);
1087         if (ptr >= ichdev->size)
1088                 return 0;
1089         return bytes_to_frames(substream->runtime, ptr);
1090 }
1091
1092 static snd_pcm_hardware_t snd_intel8x0_stream =
1093 {
1094         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1095                                  SNDRV_PCM_INFO_BLOCK_TRANSFER |
1096                                  SNDRV_PCM_INFO_MMAP_VALID |
1097                                  SNDRV_PCM_INFO_PAUSE |
1098                                  SNDRV_PCM_INFO_RESUME),
1099         .formats =              SNDRV_PCM_FMTBIT_S16_LE,
1100         .rates =                SNDRV_PCM_RATE_48000,
1101         .rate_min =             48000,
1102         .rate_max =             48000,
1103         .channels_min =         2,
1104         .channels_max =         2,
1105         .buffer_bytes_max =     128 * 1024,
1106         .period_bytes_min =     32,
1107         .period_bytes_max =     128 * 1024,
1108         .periods_min =          1,
1109         .periods_max =          1024,
1110         .fifo_size =            0,
1111 };
1112
1113 static unsigned int channels4[] = {
1114         2, 4,
1115 };
1116
1117 static snd_pcm_hw_constraint_list_t hw_constraints_channels4 = {
1118         .count = ARRAY_SIZE(channels4),
1119         .list = channels4,
1120         .mask = 0,
1121 };
1122
1123 static unsigned int channels6[] = {
1124         2, 4, 6,
1125 };
1126
1127 static snd_pcm_hw_constraint_list_t hw_constraints_channels6 = {
1128         .count = ARRAY_SIZE(channels6),
1129         .list = channels6,
1130         .mask = 0,
1131 };
1132
1133 static int snd_intel8x0_pcm_open(snd_pcm_substream_t * substream, ichdev_t *ichdev)
1134 {
1135         intel8x0_t *chip = snd_pcm_substream_chip(substream);
1136         snd_pcm_runtime_t *runtime = substream->runtime;
1137         int err;
1138
1139         ichdev->substream = substream;
1140         runtime->hw = snd_intel8x0_stream;
1141         runtime->hw.rates = ichdev->pcm->rates;
1142         snd_pcm_limit_hw_rates(runtime);
1143         if (chip->device_type == DEVICE_SIS) {
1144                 runtime->hw.buffer_bytes_max = 64*1024;
1145                 runtime->hw.period_bytes_max = 64*1024;
1146         }
1147         if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
1148                 return err;
1149         runtime->private_data = ichdev;
1150         return 0;
1151 }
1152
1153 static int snd_intel8x0_playback_open(snd_pcm_substream_t * substream)
1154 {
1155         intel8x0_t *chip = snd_pcm_substream_chip(substream);
1156         snd_pcm_runtime_t *runtime = substream->runtime;
1157         int err;
1158
1159         err = snd_intel8x0_pcm_open(substream, &chip->ichd[ICHD_PCMOUT]);
1160         if (err < 0)
1161                 return err;
1162
1163         if (chip->multi6) {
1164                 runtime->hw.channels_max = 6;
1165                 snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS, &hw_constraints_channels6);
1166         } else if (chip->multi4) {
1167                 runtime->hw.channels_max = 4;
1168                 snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS, &hw_constraints_channels4);
1169         }
1170         if (chip->dra) {
1171                 snd_ac97_pcm_double_rate_rules(runtime);
1172         }
1173         if (chip->smp20bit) {
1174                 runtime->hw.formats |= SNDRV_PCM_FMTBIT_S32_LE;
1175                 snd_pcm_hw_constraint_msbits(runtime, 0, 32, 20);
1176         }
1177         return 0;
1178 }
1179
1180 static int snd_intel8x0_playback_close(snd_pcm_substream_t * substream)
1181 {
1182         intel8x0_t *chip = snd_pcm_substream_chip(substream);
1183
1184         chip->ichd[ICHD_PCMOUT].substream = NULL;
1185         return 0;
1186 }
1187
1188 static int snd_intel8x0_capture_open(snd_pcm_substream_t * substream)
1189 {
1190         intel8x0_t *chip = snd_pcm_substream_chip(substream);
1191
1192         return snd_intel8x0_pcm_open(substream, &chip->ichd[ICHD_PCMIN]);
1193 }
1194
1195 static int snd_intel8x0_capture_close(snd_pcm_substream_t * substream)
1196 {
1197         intel8x0_t *chip = snd_pcm_substream_chip(substream);
1198
1199         chip->ichd[ICHD_PCMIN].substream = NULL;
1200         return 0;
1201 }
1202
1203 static int snd_intel8x0_mic_open(snd_pcm_substream_t * substream)
1204 {
1205         intel8x0_t *chip = snd_pcm_substream_chip(substream);
1206
1207         return snd_intel8x0_pcm_open(substream, &chip->ichd[ICHD_MIC]);
1208 }
1209
1210 static int snd_intel8x0_mic_close(snd_pcm_substream_t * substream)
1211 {
1212         intel8x0_t *chip = snd_pcm_substream_chip(substream);
1213
1214         chip->ichd[ICHD_MIC].substream = NULL;
1215         return 0;
1216 }
1217
1218 static int snd_intel8x0_mic2_open(snd_pcm_substream_t * substream)
1219 {
1220         intel8x0_t *chip = snd_pcm_substream_chip(substream);
1221
1222         return snd_intel8x0_pcm_open(substream, &chip->ichd[ICHD_MIC2]);
1223 }
1224
1225 static int snd_intel8x0_mic2_close(snd_pcm_substream_t * substream)
1226 {
1227         intel8x0_t *chip = snd_pcm_substream_chip(substream);
1228
1229         chip->ichd[ICHD_MIC2].substream = NULL;
1230         return 0;
1231 }
1232
1233 static int snd_intel8x0_capture2_open(snd_pcm_substream_t * substream)
1234 {
1235         intel8x0_t *chip = snd_pcm_substream_chip(substream);
1236
1237         return snd_intel8x0_pcm_open(substream, &chip->ichd[ICHD_PCM2IN]);
1238 }
1239
1240 static int snd_intel8x0_capture2_close(snd_pcm_substream_t * substream)
1241 {
1242         intel8x0_t *chip = snd_pcm_substream_chip(substream);
1243
1244         chip->ichd[ICHD_PCM2IN].substream = NULL;
1245         return 0;
1246 }
1247
1248 static int snd_intel8x0_spdif_open(snd_pcm_substream_t * substream)
1249 {
1250         intel8x0_t *chip = snd_pcm_substream_chip(substream);
1251         int idx = chip->device_type == DEVICE_NFORCE ? NVD_SPBAR : ICHD_SPBAR;
1252
1253         return snd_intel8x0_pcm_open(substream, &chip->ichd[idx]);
1254 }
1255
1256 static int snd_intel8x0_spdif_close(snd_pcm_substream_t * substream)
1257 {
1258         intel8x0_t *chip = snd_pcm_substream_chip(substream);
1259         int idx = chip->device_type == DEVICE_NFORCE ? NVD_SPBAR : ICHD_SPBAR;
1260
1261         chip->ichd[idx].substream = NULL;
1262         return 0;
1263 }
1264
1265 static int snd_intel8x0_ali_ac97spdifout_open(snd_pcm_substream_t * substream)
1266 {
1267         intel8x0_t *chip = snd_pcm_substream_chip(substream);
1268         unsigned int val;
1269
1270         spin_lock_irq(&chip->reg_lock);
1271         val = igetdword(chip, ICHREG(ALI_INTERFACECR));
1272         val |= ICH_ALI_IF_AC97SP;
1273         iputdword(chip, ICHREG(ALI_INTERFACECR), val);
1274         /* also needs to set ALI_SC_CODEC_SPDF correctly */
1275         spin_unlock_irq(&chip->reg_lock);
1276
1277         return snd_intel8x0_pcm_open(substream, &chip->ichd[ALID_AC97SPDIFOUT]);
1278 }
1279
1280 static int snd_intel8x0_ali_ac97spdifout_close(snd_pcm_substream_t * substream)
1281 {
1282         intel8x0_t *chip = snd_pcm_substream_chip(substream);
1283         unsigned int val;
1284
1285         chip->ichd[ALID_AC97SPDIFOUT].substream = NULL;
1286         spin_lock_irq(&chip->reg_lock);
1287         val = igetdword(chip, ICHREG(ALI_INTERFACECR));
1288         val &= ~ICH_ALI_IF_AC97SP;
1289         iputdword(chip, ICHREG(ALI_INTERFACECR), val);
1290         spin_unlock_irq(&chip->reg_lock);
1291
1292         return 0;
1293 }
1294
1295 static int snd_intel8x0_ali_spdifin_open(snd_pcm_substream_t * substream)
1296 {
1297         intel8x0_t *chip = snd_pcm_substream_chip(substream);
1298
1299         return snd_intel8x0_pcm_open(substream, &chip->ichd[ALID_SPDIFIN]);
1300 }
1301
1302 static int snd_intel8x0_ali_spdifin_close(snd_pcm_substream_t * substream)
1303 {
1304         intel8x0_t *chip = snd_pcm_substream_chip(substream);
1305
1306         chip->ichd[ALID_SPDIFIN].substream = NULL;
1307         return 0;
1308 }
1309
1310 #if 0 // NYI
1311 static int snd_intel8x0_ali_spdifout_open(snd_pcm_substream_t * substream)
1312 {
1313         intel8x0_t *chip = snd_pcm_substream_chip(substream);
1314
1315         return snd_intel8x0_pcm_open(substream, &chip->ichd[ALID_SPDIFOUT]);
1316 }
1317
1318 static int snd_intel8x0_ali_spdifout_close(snd_pcm_substream_t * substream)
1319 {
1320         intel8x0_t *chip = snd_pcm_substream_chip(substream);
1321
1322         chip->ichd[ALID_SPDIFOUT].substream = NULL;
1323         return 0;
1324 }
1325 #endif
1326
1327 static snd_pcm_ops_t snd_intel8x0_playback_ops = {
1328         .open =         snd_intel8x0_playback_open,
1329         .close =        snd_intel8x0_playback_close,
1330         .ioctl =        snd_pcm_lib_ioctl,
1331         .hw_params =    snd_intel8x0_hw_params,
1332         .hw_free =      snd_intel8x0_hw_free,
1333         .prepare =      snd_intel8x0_pcm_prepare,
1334         .trigger =      snd_intel8x0_pcm_trigger,
1335         .pointer =      snd_intel8x0_pcm_pointer,
1336 };
1337
1338 static snd_pcm_ops_t snd_intel8x0_capture_ops = {
1339         .open =         snd_intel8x0_capture_open,
1340         .close =        snd_intel8x0_capture_close,
1341         .ioctl =        snd_pcm_lib_ioctl,
1342         .hw_params =    snd_intel8x0_hw_params,
1343         .hw_free =      snd_intel8x0_hw_free,
1344         .prepare =      snd_intel8x0_pcm_prepare,
1345         .trigger =      snd_intel8x0_pcm_trigger,
1346         .pointer =      snd_intel8x0_pcm_pointer,
1347 };
1348
1349 static snd_pcm_ops_t snd_intel8x0_capture_mic_ops = {
1350         .open =         snd_intel8x0_mic_open,
1351         .close =        snd_intel8x0_mic_close,
1352         .ioctl =        snd_pcm_lib_ioctl,
1353         .hw_params =    snd_intel8x0_hw_params,
1354         .hw_free =      snd_intel8x0_hw_free,
1355         .prepare =      snd_intel8x0_pcm_prepare,
1356         .trigger =      snd_intel8x0_pcm_trigger,
1357         .pointer =      snd_intel8x0_pcm_pointer,
1358 };
1359
1360 static snd_pcm_ops_t snd_intel8x0_capture_mic2_ops = {
1361         .open =         snd_intel8x0_mic2_open,
1362         .close =        snd_intel8x0_mic2_close,
1363         .ioctl =        snd_pcm_lib_ioctl,
1364         .hw_params =    snd_intel8x0_hw_params,
1365         .hw_free =      snd_intel8x0_hw_free,
1366         .prepare =      snd_intel8x0_pcm_prepare,
1367         .trigger =      snd_intel8x0_pcm_trigger,
1368         .pointer =      snd_intel8x0_pcm_pointer,
1369 };
1370
1371 static snd_pcm_ops_t snd_intel8x0_capture2_ops = {
1372         .open =         snd_intel8x0_capture2_open,
1373         .close =        snd_intel8x0_capture2_close,
1374         .ioctl =        snd_pcm_lib_ioctl,
1375         .hw_params =    snd_intel8x0_hw_params,
1376         .hw_free =      snd_intel8x0_hw_free,
1377         .prepare =      snd_intel8x0_pcm_prepare,
1378         .trigger =      snd_intel8x0_pcm_trigger,
1379         .pointer =      snd_intel8x0_pcm_pointer,
1380 };
1381
1382 static snd_pcm_ops_t snd_intel8x0_spdif_ops = {
1383         .open =         snd_intel8x0_spdif_open,
1384         .close =        snd_intel8x0_spdif_close,
1385         .ioctl =        snd_pcm_lib_ioctl,
1386         .hw_params =    snd_intel8x0_hw_params,
1387         .hw_free =      snd_intel8x0_hw_free,
1388         .prepare =      snd_intel8x0_pcm_prepare,
1389         .trigger =      snd_intel8x0_pcm_trigger,
1390         .pointer =      snd_intel8x0_pcm_pointer,
1391 };
1392
1393 static snd_pcm_ops_t snd_intel8x0_ali_playback_ops = {
1394         .open =         snd_intel8x0_playback_open,
1395         .close =        snd_intel8x0_playback_close,
1396         .ioctl =        snd_pcm_lib_ioctl,
1397         .hw_params =    snd_intel8x0_hw_params,
1398         .hw_free =      snd_intel8x0_hw_free,
1399         .prepare =      snd_intel8x0_pcm_prepare,
1400         .trigger =      snd_intel8x0_ali_trigger,
1401         .pointer =      snd_intel8x0_pcm_pointer,
1402 };
1403
1404 static snd_pcm_ops_t snd_intel8x0_ali_capture_ops = {
1405         .open =         snd_intel8x0_capture_open,
1406         .close =        snd_intel8x0_capture_close,
1407         .ioctl =        snd_pcm_lib_ioctl,
1408         .hw_params =    snd_intel8x0_hw_params,
1409         .hw_free =      snd_intel8x0_hw_free,
1410         .prepare =      snd_intel8x0_pcm_prepare,
1411         .trigger =      snd_intel8x0_ali_trigger,
1412         .pointer =      snd_intel8x0_pcm_pointer,
1413 };
1414
1415 static snd_pcm_ops_t snd_intel8x0_ali_capture_mic_ops = {
1416         .open =         snd_intel8x0_mic_open,
1417         .close =        snd_intel8x0_mic_close,
1418         .ioctl =        snd_pcm_lib_ioctl,
1419         .hw_params =    snd_intel8x0_hw_params,
1420         .hw_free =      snd_intel8x0_hw_free,
1421         .prepare =      snd_intel8x0_pcm_prepare,
1422         .trigger =      snd_intel8x0_ali_trigger,
1423         .pointer =      snd_intel8x0_pcm_pointer,
1424 };
1425
1426 static snd_pcm_ops_t snd_intel8x0_ali_ac97spdifout_ops = {
1427         .open =         snd_intel8x0_ali_ac97spdifout_open,
1428         .close =        snd_intel8x0_ali_ac97spdifout_close,
1429         .ioctl =        snd_pcm_lib_ioctl,
1430         .hw_params =    snd_intel8x0_hw_params,
1431         .hw_free =      snd_intel8x0_hw_free,
1432         .prepare =      snd_intel8x0_pcm_prepare,
1433         .trigger =      snd_intel8x0_ali_trigger,
1434         .pointer =      snd_intel8x0_pcm_pointer,
1435 };
1436
1437 static snd_pcm_ops_t snd_intel8x0_ali_spdifin_ops = {
1438         .open =         snd_intel8x0_ali_spdifin_open,
1439         .close =        snd_intel8x0_ali_spdifin_close,
1440         .ioctl =        snd_pcm_lib_ioctl,
1441         .hw_params =    snd_intel8x0_hw_params,
1442         .hw_free =      snd_intel8x0_hw_free,
1443         .prepare =      snd_intel8x0_pcm_prepare,
1444         .trigger =      snd_intel8x0_pcm_trigger,
1445         .pointer =      snd_intel8x0_pcm_pointer,
1446 };
1447
1448 #if 0 // NYI
1449 static snd_pcm_ops_t snd_intel8x0_ali_spdifout_ops = {
1450         .open =         snd_intel8x0_ali_spdifout_open,
1451         .close =        snd_intel8x0_ali_spdifout_close,
1452         .ioctl =        snd_pcm_lib_ioctl,
1453         .hw_params =    snd_intel8x0_hw_params,
1454         .hw_free =      snd_intel8x0_hw_free,
1455         .prepare =      snd_intel8x0_pcm_prepare,
1456         .trigger =      snd_intel8x0_pcm_trigger,
1457         .pointer =      snd_intel8x0_pcm_pointer,
1458 };
1459 #endif // NYI
1460
1461 struct ich_pcm_table {
1462         char *suffix;
1463         snd_pcm_ops_t *playback_ops;
1464         snd_pcm_ops_t *capture_ops;
1465         size_t prealloc_size;
1466         size_t prealloc_max_size;
1467         int ac97_idx;
1468 };
1469
1470 static int __devinit snd_intel8x0_pcm1(intel8x0_t *chip, int device, struct ich_pcm_table *rec)
1471 {
1472         snd_pcm_t *pcm;
1473         int err;
1474         char name[32];
1475
1476         if (rec->suffix)
1477                 sprintf(name, "Intel ICH - %s", rec->suffix);
1478         else
1479                 strcpy(name, "Intel ICH");
1480         err = snd_pcm_new(chip->card, name, device,
1481                           rec->playback_ops ? 1 : 0,
1482                           rec->capture_ops ? 1 : 0, &pcm);
1483         if (err < 0)
1484                 return err;
1485
1486         if (rec->playback_ops)
1487                 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, rec->playback_ops);
1488         if (rec->capture_ops)
1489                 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, rec->capture_ops);
1490
1491         pcm->private_data = chip;
1492         pcm->info_flags = 0;
1493         if (rec->suffix)
1494                 sprintf(pcm->name, "%s - %s", chip->card->shortname, rec->suffix);
1495         else
1496                 strcpy(pcm->name, chip->card->shortname);
1497         chip->pcm[device] = pcm;
1498
1499         snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(chip->pci),
1500                                               rec->prealloc_size, rec->prealloc_max_size);
1501
1502         return 0;
1503 }
1504
1505 static struct ich_pcm_table intel_pcms[] __devinitdata = {
1506         {
1507                 .playback_ops = &snd_intel8x0_playback_ops,
1508                 .capture_ops = &snd_intel8x0_capture_ops,
1509                 .prealloc_size = 64 * 1024,
1510                 .prealloc_max_size = 128 * 1024,
1511         },
1512         {
1513                 .suffix = "MIC ADC",
1514                 .capture_ops = &snd_intel8x0_capture_mic_ops,
1515                 .prealloc_size = 0,
1516                 .prealloc_max_size = 128 * 1024,
1517                 .ac97_idx = ICHD_MIC,
1518         },
1519         {
1520                 .suffix = "MIC2 ADC",
1521                 .capture_ops = &snd_intel8x0_capture_mic2_ops,
1522                 .prealloc_size = 0,
1523                 .prealloc_max_size = 128 * 1024,
1524                 .ac97_idx = ICHD_MIC2,
1525         },
1526         {
1527                 .suffix = "ADC2",
1528                 .capture_ops = &snd_intel8x0_capture2_ops,
1529                 .prealloc_size = 0,
1530                 .prealloc_max_size = 128 * 1024,
1531                 .ac97_idx = ICHD_PCM2IN,
1532         },
1533         {
1534                 .suffix = "IEC958",
1535                 .playback_ops = &snd_intel8x0_spdif_ops,
1536                 .prealloc_size = 64 * 1024,
1537                 .prealloc_max_size = 128 * 1024,
1538                 .ac97_idx = ICHD_SPBAR,
1539         },
1540 };
1541
1542 static struct ich_pcm_table nforce_pcms[] __devinitdata = {
1543         {
1544                 .playback_ops = &snd_intel8x0_playback_ops,
1545                 .capture_ops = &snd_intel8x0_capture_ops,
1546                 .prealloc_size = 64 * 1024,
1547                 .prealloc_max_size = 128 * 1024,
1548         },
1549         {
1550                 .suffix = "MIC ADC",
1551                 .capture_ops = &snd_intel8x0_capture_mic_ops,
1552                 .prealloc_size = 0,
1553                 .prealloc_max_size = 128 * 1024,
1554                 .ac97_idx = NVD_MIC,
1555         },
1556         {
1557                 .suffix = "IEC958",
1558                 .playback_ops = &snd_intel8x0_spdif_ops,
1559                 .prealloc_size = 64 * 1024,
1560                 .prealloc_max_size = 128 * 1024,
1561                 .ac97_idx = NVD_SPBAR,
1562         },
1563 };
1564
1565 static struct ich_pcm_table ali_pcms[] __devinitdata = {
1566         {
1567                 .playback_ops = &snd_intel8x0_ali_playback_ops,
1568                 .capture_ops = &snd_intel8x0_ali_capture_ops,
1569                 .prealloc_size = 64 * 1024,
1570                 .prealloc_max_size = 128 * 1024,
1571         },
1572         {
1573                 .suffix = "MIC ADC",
1574                 .capture_ops = &snd_intel8x0_ali_capture_mic_ops,
1575                 .prealloc_size = 0,
1576                 .prealloc_max_size = 128 * 1024,
1577                 .ac97_idx = ALID_MIC,
1578         },
1579         {
1580                 .suffix = "IEC958",
1581                 .playback_ops = &snd_intel8x0_ali_ac97spdifout_ops,
1582                 .capture_ops = &snd_intel8x0_ali_spdifin_ops,
1583                 .prealloc_size = 64 * 1024,
1584                 .prealloc_max_size = 128 * 1024,
1585                 .ac97_idx = ALID_AC97SPDIFOUT,
1586         },
1587 #if 0 // NYI
1588         {
1589                 .suffix = "HW IEC958",
1590                 .playback_ops = &snd_intel8x0_ali_spdifout_ops,
1591                 .prealloc_size = 64 * 1024,
1592                 .prealloc_max_size = 128 * 1024,
1593         },
1594 #endif
1595 };
1596
1597 static int __devinit snd_intel8x0_pcm(intel8x0_t *chip)
1598 {
1599         int i, tblsize, device, err;
1600         struct ich_pcm_table *tbl, *rec;
1601
1602         switch (chip->device_type) {
1603         case DEVICE_INTEL_ICH4:
1604                 tbl = intel_pcms;
1605                 tblsize = ARRAY_SIZE(intel_pcms);
1606                 break;
1607         case DEVICE_NFORCE:
1608                 tbl = nforce_pcms;
1609                 tblsize = ARRAY_SIZE(nforce_pcms);
1610                 break;
1611         case DEVICE_ALI:
1612                 tbl = ali_pcms;
1613                 tblsize = ARRAY_SIZE(ali_pcms);
1614                 break;
1615         default:
1616                 tbl = intel_pcms;
1617                 tblsize = 2;
1618                 break;
1619         }
1620
1621         device = 0;
1622         for (i = 0; i < tblsize; i++) {
1623                 rec = tbl + i;
1624                 if (i > 0 && rec->ac97_idx) {
1625                         /* activate PCM only when associated AC'97 codec */
1626                         if (! chip->ichd[rec->ac97_idx].pcm)
1627                                 continue;
1628                 }
1629                 err = snd_intel8x0_pcm1(chip, device, rec);
1630                 if (err < 0)
1631                         return err;
1632                 device++;
1633         }
1634
1635         chip->pcm_devs = device;
1636         return 0;
1637 }
1638
1639
1640 /*
1641  *  Mixer part
1642  */
1643
1644 static void snd_intel8x0_mixer_free_ac97_bus(ac97_bus_t *bus)
1645 {
1646         intel8x0_t *chip = bus->private_data;
1647         chip->ac97_bus = NULL;
1648 }
1649
1650 static void snd_intel8x0_mixer_free_ac97(ac97_t *ac97)
1651 {
1652         intel8x0_t *chip = ac97->private_data;
1653         chip->ac97[ac97->num] = NULL;
1654 }
1655
1656 static struct ac97_pcm ac97_pcm_defs[] __devinitdata = {
1657         /* front PCM */
1658         {
1659                 .exclusive = 1,
1660                 .r = {  {
1661                                 .slots = (1 << AC97_SLOT_PCM_LEFT) |
1662                                          (1 << AC97_SLOT_PCM_RIGHT) |
1663                                          (1 << AC97_SLOT_PCM_CENTER) |
1664                                          (1 << AC97_SLOT_PCM_SLEFT) |
1665                                          (1 << AC97_SLOT_PCM_SRIGHT) |
1666                                          (1 << AC97_SLOT_LFE)
1667                         },
1668                         {
1669                                 .slots = (1 << AC97_SLOT_PCM_LEFT) |
1670                                          (1 << AC97_SLOT_PCM_RIGHT) |
1671                                          (1 << AC97_SLOT_PCM_LEFT_0) |
1672                                          (1 << AC97_SLOT_PCM_RIGHT_0)
1673                         }
1674                 }
1675         },
1676         /* PCM IN #1 */
1677         {
1678                 .stream = 1,
1679                 .exclusive = 1,
1680                 .r = {  {
1681                                 .slots = (1 << AC97_SLOT_PCM_LEFT) |
1682                                          (1 << AC97_SLOT_PCM_RIGHT)
1683                         }
1684                 }
1685         },
1686         /* MIC IN #1 */
1687         {
1688                 .stream = 1,
1689                 .exclusive = 1,
1690                 .r = {  {
1691                                 .slots = (1 << AC97_SLOT_MIC)
1692                         }
1693                 }
1694         },
1695         /* S/PDIF PCM */
1696         {
1697                 .exclusive = 1,
1698                 .spdif = 1,
1699                 .r = {  {
1700                                 .slots = (1 << AC97_SLOT_SPDIF_LEFT2) |
1701                                          (1 << AC97_SLOT_SPDIF_RIGHT2)
1702                         }
1703                 }
1704         },
1705         /* PCM IN #2 */
1706         {
1707                 .stream = 1,
1708                 .exclusive = 1,
1709                 .r = {  {
1710                                 .slots = (1 << AC97_SLOT_PCM_LEFT) |
1711                                          (1 << AC97_SLOT_PCM_RIGHT)
1712                         }
1713                 }
1714         },
1715         /* MIC IN #2 */
1716         {
1717                 .stream = 1,
1718                 .exclusive = 1,
1719                 .r = {  {
1720                                 .slots = (1 << AC97_SLOT_MIC)
1721                         }
1722                 }
1723         },
1724 };
1725
1726 static struct ac97_quirk ac97_quirks[] __devinitdata = {
1727         {
1728                 .subvendor = 0x0e11,
1729                 .subdevice = 0x008a,
1730                 .name = "Compaq Evo W4000",     /* AD1885 */
1731                 .type = AC97_TUNE_HP_ONLY
1732         },
1733         {
1734                 .subvendor = 0x0e11,
1735                 .subdevice = 0x00b8,
1736                 .name = "Compaq Evo D510C",
1737                 .type = AC97_TUNE_HP_ONLY
1738         },
1739         {
1740                 .subvendor = 0x0e11,
1741                 .subdevice = 0x0860,
1742                 .name = "HP/Compaq nx7010",
1743                 .type = AC97_TUNE_MUTE_LED
1744         },
1745         {
1746                 .subvendor = 0x1014,
1747                 .subdevice = 0x1f00,
1748                 .name = "MS-9128",
1749                 .type = AC97_TUNE_ALC_JACK
1750         },
1751         {
1752                 .subvendor = 0x1028,
1753                 .subdevice = 0x00d8,
1754                 .name = "Dell Precision 530",   /* AD1885 */
1755                 .type = AC97_TUNE_HP_ONLY
1756         },
1757         {
1758                 .subvendor = 0x1028,
1759                 .subdevice = 0x010d,
1760                 .name = "Dell", /* which model?  AD1885 */
1761                 .type = AC97_TUNE_HP_ONLY
1762         },
1763         {
1764                 .subvendor = 0x1028,
1765                 .subdevice = 0x0126,
1766                 .name = "Dell Optiplex GX260",  /* AD1981A */
1767                 .type = AC97_TUNE_HP_ONLY
1768         },
1769         {
1770                 .subvendor = 0x1028,
1771                 .subdevice = 0x012c,
1772                 .name = "Dell Precision 650",   /* AD1981A */
1773                 .type = AC97_TUNE_HP_ONLY
1774         },
1775         {
1776                 .subvendor = 0x1028,
1777                 .subdevice = 0x012d,
1778                 .name = "Dell Precision 450",   /* AD1981B*/
1779                 .type = AC97_TUNE_HP_ONLY
1780         },
1781         {
1782                 .subvendor = 0x1028,
1783                 .subdevice = 0x0147,
1784                 .name = "Dell", /* which model?  AD1981B*/
1785                 .type = AC97_TUNE_HP_ONLY
1786         },
1787         {
1788                 .subvendor = 0x1028,
1789                 .subdevice = 0x0163,
1790                 .name = "Dell Unknown", /* STAC9750/51 */
1791                 .type = AC97_TUNE_HP_ONLY
1792         },
1793         {
1794                 .subvendor = 0x103c,
1795                 .subdevice = 0x006d,
1796                 .name = "HP zv5000",
1797                 .type = AC97_TUNE_MUTE_LED      /*AD1981B*/
1798         },
1799         {       /* FIXME: which codec? */
1800                 .subvendor = 0x103c,
1801                 .subdevice = 0x00c3,
1802                 .name = "HP xw6000",
1803                 .type = AC97_TUNE_HP_ONLY
1804         },
1805         {
1806                 .subvendor = 0x103c,
1807                 .subdevice = 0x088c,
1808                 .name = "HP nc8000",
1809                 .type = AC97_TUNE_MUTE_LED
1810         },
1811         {
1812                 .subvendor = 0x103c,
1813                 .subdevice = 0x0890,
1814                 .name = "HP nc6000",
1815                 .type = AC97_TUNE_MUTE_LED
1816         },
1817         {
1818                 .subvendor = 0x103c,
1819                 .subdevice = 0x129d,
1820                 .name = "HP xw8000",
1821                 .type = AC97_TUNE_HP_ONLY
1822         },
1823         {
1824                 .subvendor = 0x103c,
1825                 .subdevice = 0x12f1,
1826                 .name = "HP xw8200",    /* AD1981B*/
1827                 .type = AC97_TUNE_HP_ONLY
1828         },
1829         {
1830                 .subvendor = 0x103c,
1831                 .subdevice = 0x12f2,
1832                 .name = "HP xw6200",
1833                 .type = AC97_TUNE_HP_ONLY
1834         },
1835         {
1836                 .subvendor = 0x103c,
1837                 .subdevice = 0x3008,
1838                 .name = "HP xw4200",    /* AD1981B*/
1839                 .type = AC97_TUNE_HP_ONLY
1840         },
1841         {
1842                 .subvendor = 0x104d,
1843                 .subdevice = 0x8197,
1844                 .name = "Sony S1XP",
1845                 .type = AC97_TUNE_INV_EAPD
1846         },
1847         {
1848                 .subvendor = 0x1043,
1849                 .subdevice = 0x80f3,
1850                 .name = "ASUS ICH5/AD1985",
1851                 .type = AC97_TUNE_AD_SHARING
1852         },
1853         {
1854                 .subvendor = 0x10cf,
1855                 .subdevice = 0x11c3,
1856                 .name = "Fujitsu-Siemens E4010",
1857                 .type = AC97_TUNE_HP_ONLY
1858         },
1859         {
1860                 .subvendor = 0x10cf,
1861                 .subdevice = 0x1225,
1862                 .name = "Fujitsu-Siemens T3010",
1863                 .type = AC97_TUNE_HP_ONLY
1864         },
1865         {
1866                 .subvendor = 0x10cf,
1867                 .subdevice = 0x1253,
1868                 .name = "Fujitsu S6210",        /* STAC9750/51 */
1869                 .type = AC97_TUNE_HP_ONLY
1870         },
1871         {
1872                 .subvendor = 0x10f1,
1873                 .subdevice = 0x2665,
1874                 .name = "Fujitsu-Siemens Celsius",      /* AD1981? */
1875                 .type = AC97_TUNE_HP_ONLY
1876         },
1877         {
1878                 .subvendor = 0x10f1,
1879                 .subdevice = 0x2885,
1880                 .name = "AMD64 Mobo",   /* ALC650 */
1881                 .type = AC97_TUNE_HP_ONLY
1882         },
1883         {
1884                 .subvendor = 0x110a,
1885                 .subdevice = 0x0056,
1886                 .name = "Fujitsu-Siemens Scenic",       /* AD1981? */
1887                 .type = AC97_TUNE_HP_ONLY
1888         },
1889         {
1890                 .subvendor = 0x11d4,
1891                 .subdevice = 0x5375,
1892                 .name = "ADI AD1985 (discrete)",
1893                 .type = AC97_TUNE_HP_ONLY
1894         },
1895         {
1896                 .subvendor = 0x1462,
1897                 .subdevice = 0x5470,
1898                 .name = "MSI P4 ATX 645 Ultra",
1899                 .type = AC97_TUNE_HP_ONLY
1900         },
1901         {
1902                 .subvendor = 0x1734,
1903                 .subdevice = 0x0088,
1904                 .name = "Fujitsu-Siemens D1522",        /* AD1981 */
1905                 .type = AC97_TUNE_HP_ONLY
1906         },
1907         {
1908                 .subvendor = 0x8086,
1909                 .subdevice = 0x2000,
1910                 .mask = 0xfff0,
1911                 .name = "Intel ICH5/AD1985",
1912                 .type = AC97_TUNE_AD_SHARING
1913         },
1914         {
1915                 .subvendor = 0x8086,
1916                 .subdevice = 0x4000,
1917                 .mask = 0xfff0,
1918                 .name = "Intel ICH5/AD1985",
1919                 .type = AC97_TUNE_AD_SHARING
1920         },
1921         {
1922                 .subvendor = 0x8086,
1923                 .subdevice = 0x4856,
1924                 .name = "Intel D845WN (82801BA)",
1925                 .type = AC97_TUNE_SWAP_HP
1926         },
1927         {
1928                 .subvendor = 0x8086,
1929                 .subdevice = 0x4d44,
1930                 .name = "Intel D850EMV2",       /* AD1885 */
1931                 .type = AC97_TUNE_HP_ONLY
1932         },
1933         {
1934                 .subvendor = 0x8086,
1935                 .subdevice = 0x4d56,
1936                 .name = "Intel ICH/AD1885",
1937                 .type = AC97_TUNE_HP_ONLY
1938         },
1939         {
1940                 .subvendor = 0x8086,
1941                 .subdevice = 0x6000,
1942                 .mask = 0xfff0,
1943                 .name = "Intel ICH5/AD1985",
1944                 .type = AC97_TUNE_AD_SHARING
1945         },
1946         {
1947                 .subvendor = 0x8086,
1948                 .subdevice = 0xe000,
1949                 .mask = 0xfff0,
1950                 .name = "Intel ICH5/AD1985",
1951                 .type = AC97_TUNE_AD_SHARING
1952         },
1953 #if 0 /* FIXME: this seems wrong on most boards */
1954         {
1955                 .subvendor = 0x8086,
1956                 .subdevice = 0xa000,
1957                 .mask = 0xfff0,
1958                 .name = "Intel ICH5/AD1985",
1959                 .type = AC97_TUNE_HP_ONLY
1960         },
1961 #endif
1962         { } /* terminator */
1963 };
1964
1965 static int __devinit snd_intel8x0_mixer(intel8x0_t *chip, int ac97_clock, const char *quirk_override)
1966 {
1967         ac97_bus_t *pbus;
1968         ac97_template_t ac97;
1969         int err;
1970         unsigned int i, codecs;
1971         unsigned int glob_sta = 0;
1972         ac97_bus_ops_t *ops;
1973         static ac97_bus_ops_t standard_bus_ops = {
1974                 .write = snd_intel8x0_codec_write,
1975                 .read = snd_intel8x0_codec_read,
1976         };
1977         static ac97_bus_ops_t ali_bus_ops = {
1978                 .write = snd_intel8x0_ali_codec_write,
1979                 .read = snd_intel8x0_ali_codec_read,
1980         };
1981
1982         chip->spdif_idx = -1; /* use PCMOUT (or disabled) */
1983         switch (chip->device_type) {
1984         case DEVICE_NFORCE:
1985                 chip->spdif_idx = NVD_SPBAR;
1986                 break;
1987         case DEVICE_ALI:
1988                 chip->spdif_idx = ALID_AC97SPDIFOUT;
1989                 break;
1990         case DEVICE_INTEL_ICH4:
1991                 chip->spdif_idx = ICHD_SPBAR;
1992                 break;
1993         };
1994
1995         chip->in_ac97_init = 1;
1996
1997         memset(&ac97, 0, sizeof(ac97));
1998         ac97.private_data = chip;
1999         ac97.private_free = snd_intel8x0_mixer_free_ac97;
2000         ac97.scaps = AC97_SCAP_SKIP_MODEM;
2001         if (chip->xbox)
2002                 ac97.scaps |= AC97_SCAP_DETECT_BY_VENDOR;
2003         if (chip->device_type != DEVICE_ALI) {
2004                 glob_sta = igetdword(chip, ICHREG(GLOB_STA));
2005                 ops = &standard_bus_ops;
2006                 if (chip->device_type == DEVICE_INTEL_ICH4) {
2007                         codecs = 0;
2008                         if (glob_sta & ICH_PCR)
2009                                 codecs++;
2010                         if (glob_sta & ICH_SCR)
2011                                 codecs++;
2012                         if (glob_sta & ICH_TCR)
2013                                 codecs++;
2014                         chip->in_sdin_init = 1;
2015                         for (i = 0; i < codecs; i++) {
2016                                 snd_intel8x0_codec_read_test(chip, i);
2017                                 chip->ac97_sdin[i] = igetbyte(chip, ICHREG(SDM)) & ICH_LDI_MASK;
2018                         }
2019                         chip->in_sdin_init = 0;
2020                 } else {
2021                         codecs = glob_sta & ICH_SCR ? 2 : 1;
2022                 }
2023         } else {
2024                 ops = &ali_bus_ops;
2025                 codecs = 1;
2026                 /* detect the secondary codec */
2027                 for (i = 0; i < 100; i++) {
2028                         unsigned int reg = igetdword(chip, ICHREG(ALI_RTSR));
2029                         if (reg & 0x40) {
2030                                 codecs = 2;
2031                                 break;
2032                         }
2033                         iputdword(chip, ICHREG(ALI_RTSR), reg | 0x40);
2034                         udelay(1);
2035                 }
2036         }
2037         if ((err = snd_ac97_bus(chip->card, 0, ops, chip, &pbus)) < 0)
2038                 goto __err;
2039         pbus->private_free = snd_intel8x0_mixer_free_ac97_bus;
2040         pbus->shared_type = AC97_SHARED_TYPE_ICH;       /* shared with modem driver */
2041         if (ac97_clock >= 8000 && ac97_clock <= 48000)
2042                 pbus->clock = ac97_clock;
2043         /* FIXME: my test board doesn't work well with VRA... */
2044         if (chip->device_type == DEVICE_ALI)
2045                 pbus->no_vra = 1;
2046         else
2047                 pbus->dra = 1;
2048         chip->ac97_bus = pbus;
2049
2050         ac97.pci = chip->pci;
2051         for (i = 0; i < codecs; i++) {
2052                 ac97.num = i;
2053                 if ((err = snd_ac97_mixer(pbus, &ac97, &chip->ac97[i])) < 0) {
2054                         if (err != -EACCES)
2055                                 snd_printk(KERN_ERR "Unable to initialize codec #%d\n", i);
2056                         if (i == 0)
2057                                 goto __err;
2058                         continue;
2059                 }
2060         }
2061         /* tune up the primary codec */
2062         snd_ac97_tune_hardware(chip->ac97[0], ac97_quirks, quirk_override);
2063         /* enable separate SDINs for ICH4 */
2064         if (chip->device_type == DEVICE_INTEL_ICH4)
2065                 pbus->isdin = 1;
2066         /* find the available PCM streams */
2067         i = ARRAY_SIZE(ac97_pcm_defs);
2068         if (chip->device_type != DEVICE_INTEL_ICH4)
2069                 i -= 2;         /* do not allocate PCM2IN and MIC2 */
2070         if (chip->spdif_idx < 0)
2071                 i--;            /* do not allocate S/PDIF */
2072         err = snd_ac97_pcm_assign(pbus, i, ac97_pcm_defs);
2073         if (err < 0)
2074                 goto __err;
2075         chip->ichd[ICHD_PCMOUT].pcm = &pbus->pcms[0];
2076         chip->ichd[ICHD_PCMIN].pcm = &pbus->pcms[1];
2077         chip->ichd[ICHD_MIC].pcm = &pbus->pcms[2];
2078         if (chip->spdif_idx >= 0)
2079                 chip->ichd[chip->spdif_idx].pcm = &pbus->pcms[3];
2080         if (chip->device_type == DEVICE_INTEL_ICH4) {
2081                 chip->ichd[ICHD_PCM2IN].pcm = &pbus->pcms[4];
2082                 chip->ichd[ICHD_MIC2].pcm = &pbus->pcms[5];
2083         }
2084         /* enable separate SDINs for ICH4 */
2085         if (chip->device_type == DEVICE_INTEL_ICH4) {
2086                 struct ac97_pcm *pcm = chip->ichd[ICHD_PCM2IN].pcm;
2087                 u8 tmp = igetbyte(chip, ICHREG(SDM));
2088                 tmp &= ~(ICH_DI2L_MASK|ICH_DI1L_MASK);
2089                 if (pcm) {
2090                         tmp |= ICH_SE;  /* steer enable for multiple SDINs */
2091                         tmp |= chip->ac97_sdin[0] << ICH_DI1L_SHIFT;
2092                         for (i = 1; i < 4; i++) {
2093                                 if (pcm->r[0].codec[i]) {
2094                                         tmp |= chip->ac97_sdin[pcm->r[0].codec[1]->num] << ICH_DI2L_SHIFT;
2095                                         break;
2096                                 }
2097                         }
2098                 } else {
2099                         tmp &= ~ICH_SE; /* steer disable */
2100                 }
2101                 iputbyte(chip, ICHREG(SDM), tmp);
2102         }
2103         if (pbus->pcms[0].r[0].slots & (1 << AC97_SLOT_PCM_SLEFT)) {
2104                 chip->multi4 = 1;
2105                 if (pbus->pcms[0].r[0].slots & (1 << AC97_SLOT_LFE))
2106                         chip->multi6 = 1;
2107         }
2108         if (pbus->pcms[0].r[1].rslots[0]) {
2109                 chip->dra = 1;
2110         }
2111         if (chip->device_type == DEVICE_INTEL_ICH4) {
2112                 if ((igetdword(chip, ICHREG(GLOB_STA)) & ICH_SAMPLE_CAP) == ICH_SAMPLE_16_20)
2113                         chip->smp20bit = 1;
2114         }
2115         if (chip->device_type == DEVICE_NFORCE) {
2116                 /* 48kHz only */
2117                 chip->ichd[chip->spdif_idx].pcm->rates = SNDRV_PCM_RATE_48000;
2118         }
2119         if (chip->device_type == DEVICE_INTEL_ICH4) {
2120                 /* use slot 10/11 for SPDIF */
2121                 u32 val;
2122                 val = igetdword(chip, ICHREG(GLOB_CNT)) & ~ICH_PCM_SPDIF_MASK;
2123                 val |= ICH_PCM_SPDIF_1011;
2124                 iputdword(chip, ICHREG(GLOB_CNT), val);
2125                 snd_ac97_update_bits(chip->ac97[0], AC97_EXTENDED_STATUS, 0x03 << 4, 0x03 << 4);
2126         }
2127         chip->in_ac97_init = 0;
2128         return 0;
2129
2130  __err:
2131         /* clear the cold-reset bit for the next chance */
2132         if (chip->device_type != DEVICE_ALI)
2133                 iputdword(chip, ICHREG(GLOB_CNT), igetdword(chip, ICHREG(GLOB_CNT)) & ~ICH_AC97COLD);
2134         return err;
2135 }
2136
2137
2138 /*
2139  *
2140  */
2141
2142 static void do_ali_reset(intel8x0_t *chip)
2143 {
2144         iputdword(chip, ICHREG(ALI_SCR), ICH_ALI_SC_RESET);
2145         iputdword(chip, ICHREG(ALI_FIFOCR1), 0x83838383);
2146         iputdword(chip, ICHREG(ALI_FIFOCR2), 0x83838383);
2147         iputdword(chip, ICHREG(ALI_FIFOCR3), 0x83838383);
2148         iputdword(chip, ICHREG(ALI_INTERFACECR),
2149                   ICH_ALI_IF_MC|ICH_ALI_IF_PI|ICH_ALI_IF_PO);
2150         iputdword(chip, ICHREG(ALI_INTERRUPTCR), 0x00000000);
2151         iputdword(chip, ICHREG(ALI_INTERRUPTSR), 0x00000000);
2152 }
2153
2154 #define do_delay(chip) do {\
2155         set_current_state(TASK_UNINTERRUPTIBLE);\
2156         schedule_timeout(1);\
2157 } while (0)
2158
2159 static int snd_intel8x0_ich_chip_init(intel8x0_t *chip, int probing)
2160 {
2161         unsigned long end_time;
2162         unsigned int cnt, status, nstatus;
2163
2164         /* put logic to right state */
2165         /* first clear status bits */
2166         status = ICH_RCS | ICH_MCINT | ICH_POINT | ICH_PIINT;
2167         if (chip->device_type == DEVICE_NFORCE)
2168                 status |= ICH_NVSPINT;
2169         cnt = igetdword(chip, ICHREG(GLOB_STA));
2170         iputdword(chip, ICHREG(GLOB_STA), cnt & status);
2171
2172         /* ACLink on, 2 channels */
2173         cnt = igetdword(chip, ICHREG(GLOB_CNT));
2174         cnt &= ~(ICH_ACLINK | ICH_PCM_246_MASK);
2175         /* finish cold or do warm reset */
2176         cnt |= (cnt & ICH_AC97COLD) == 0 ? ICH_AC97COLD : ICH_AC97WARM;
2177         iputdword(chip, ICHREG(GLOB_CNT), cnt);
2178         end_time = (jiffies + (HZ / 4)) + 1;
2179         do {
2180                 if ((igetdword(chip, ICHREG(GLOB_CNT)) & ICH_AC97WARM) == 0)
2181                         goto __ok;
2182                 do_delay(chip);
2183         } while (time_after_eq(end_time, jiffies));
2184         snd_printk("AC'97 warm reset still in progress? [0x%x]\n", igetdword(chip, ICHREG(GLOB_CNT)));
2185         return -EIO;
2186
2187       __ok:
2188         if (probing) {
2189                 /* wait for any codec ready status.
2190                  * Once it becomes ready it should remain ready
2191                  * as long as we do not disable the ac97 link.
2192                  */
2193                 end_time = jiffies + HZ;
2194                 do {
2195                         status = igetdword(chip, ICHREG(GLOB_STA)) & (ICH_PCR | ICH_SCR | ICH_TCR);
2196                         if (status)
2197                                 break;
2198                         do_delay(chip);
2199                 } while (time_after_eq(end_time, jiffies));
2200                 if (! status) {
2201                         /* no codec is found */
2202                         snd_printk(KERN_ERR "codec_ready: codec is not ready [0x%x]\n", igetdword(chip, ICHREG(GLOB_STA)));
2203                         return -EIO;
2204                 }
2205
2206                 if (chip->device_type == DEVICE_INTEL_ICH4)
2207                         /* ICH4 can have three codecs */
2208                         nstatus = ICH_PCR | ICH_SCR | ICH_TCR;
2209                 else
2210                         /* others up to two codecs */
2211                         nstatus = ICH_PCR | ICH_SCR;
2212
2213                 /* wait for other codecs ready status. */
2214                 end_time = jiffies + HZ / 4;
2215                 while (status != nstatus && time_after_eq(end_time, jiffies)) {
2216                         do_delay(chip);
2217                         status |= igetdword(chip, ICHREG(GLOB_STA)) & nstatus;
2218                 }
2219
2220         } else {
2221                 /* resume phase */
2222                 int i;
2223                 status = 0;
2224                 for (i = 0; i < 3; i++)
2225                         if (chip->ac97[i])
2226                                 status |= get_ich_codec_bit(chip, i);
2227                 /* wait until all the probed codecs are ready */
2228                 end_time = jiffies + HZ;
2229                 do {
2230                         nstatus = igetdword(chip, ICHREG(GLOB_STA)) & (ICH_PCR | ICH_SCR | ICH_TCR);
2231                         if (status == nstatus)
2232                                 break;
2233                         do_delay(chip);
2234                 } while (time_after_eq(end_time, jiffies));
2235         }
2236
2237         if (chip->device_type == DEVICE_SIS) {
2238                 /* unmute the output on SIS7012 */
2239                 iputword(chip, 0x4c, igetword(chip, 0x4c) | 1);
2240         }
2241         if (chip->device_type == DEVICE_NFORCE) {
2242                 /* enable SPDIF interrupt */
2243                 unsigned int val;
2244                 pci_read_config_dword(chip->pci, 0x4c, &val);
2245                 val |= 0x1000000;
2246                 pci_write_config_dword(chip->pci, 0x4c, val);
2247         }
2248         return 0;
2249 }
2250
2251 static int snd_intel8x0_ali_chip_init(intel8x0_t *chip, int probing)
2252 {
2253         u32 reg;
2254         int i = 0;
2255
2256         reg = igetdword(chip, ICHREG(ALI_SCR));
2257         if ((reg & 2) == 0)     /* Cold required */
2258                 reg |= 2;
2259         else
2260                 reg |= 1;       /* Warm */
2261         reg &= ~0x80000000;     /* ACLink on */
2262         iputdword(chip, ICHREG(ALI_SCR), reg);
2263
2264         for (i = 0; i < HZ / 2; i++) {
2265                 if (! (igetdword(chip, ICHREG(ALI_INTERRUPTSR)) & ALI_INT_GPIO))
2266                         goto __ok;
2267                 do_delay(chip);
2268         }
2269         snd_printk(KERN_ERR "AC'97 reset failed.\n");
2270         if (probing)
2271                 return -EIO;
2272
2273  __ok:
2274         for (i = 0; i < HZ / 2; i++) {
2275                 reg = igetdword(chip, ICHREG(ALI_RTSR));
2276                 if (reg & 0x80) /* primary codec */
2277                         break;
2278                 iputdword(chip, ICHREG(ALI_RTSR), reg | 0x80);
2279                 do_delay(chip);
2280         }
2281
2282         do_ali_reset(chip);
2283         return 0;
2284 }
2285
2286 static int snd_intel8x0_chip_init(intel8x0_t *chip, int probing)
2287 {
2288         unsigned int i;
2289         int err;
2290
2291         if (chip->device_type != DEVICE_ALI) {
2292                 if ((err = snd_intel8x0_ich_chip_init(chip, probing)) < 0)
2293                         return err;
2294                 iagetword(chip, 0);     /* clear semaphore flag */
2295         } else {
2296                 if ((err = snd_intel8x0_ali_chip_init(chip, probing)) < 0)
2297                         return err;
2298         }
2299
2300         /* disable interrupts */
2301         for (i = 0; i < chip->bdbars_count; i++)
2302                 iputbyte(chip, ICH_REG_OFF_CR + chip->ichd[i].reg_offset, 0x00);
2303         /* reset channels */
2304         for (i = 0; i < chip->bdbars_count; i++)
2305                 iputbyte(chip, ICH_REG_OFF_CR + chip->ichd[i].reg_offset, ICH_RESETREGS);
2306         /* initialize Buffer Descriptor Lists */
2307         for (i = 0; i < chip->bdbars_count; i++)
2308                 iputdword(chip, ICH_REG_OFF_BDBAR + chip->ichd[i].reg_offset, chip->ichd[i].bdbar_addr);
2309         return 0;
2310 }
2311
2312 static int snd_intel8x0_free(intel8x0_t *chip)
2313 {
2314         unsigned int i;
2315
2316         if (chip->irq < 0)
2317                 goto __hw_end;
2318         /* disable interrupts */
2319         for (i = 0; i < chip->bdbars_count; i++)
2320                 iputbyte(chip, ICH_REG_OFF_CR + chip->ichd[i].reg_offset, 0x00);
2321         /* reset channels */
2322         for (i = 0; i < chip->bdbars_count; i++)
2323                 iputbyte(chip, ICH_REG_OFF_CR + chip->ichd[i].reg_offset, ICH_RESETREGS);
2324         if (chip->device_type == DEVICE_NFORCE) {
2325                 /* stop the spdif interrupt */
2326                 unsigned int val;
2327                 pci_read_config_dword(chip->pci, 0x4c, &val);
2328                 val &= ~0x1000000;
2329                 pci_write_config_dword(chip->pci, 0x4c, val);
2330         }
2331         /* --- */
2332         synchronize_irq(chip->irq);
2333       __hw_end:
2334         if (chip->irq >= 0)
2335                 free_irq(chip->irq, (void *)chip);
2336         if (chip->bdbars.area) {
2337                 if (chip->fix_nocache)
2338                         fill_nocache(chip->bdbars.area, chip->bdbars.bytes, 0);
2339                 snd_dma_free_pages(&chip->bdbars);
2340         }
2341         if (chip->remap_addr)
2342                 iounmap(chip->remap_addr);
2343         if (chip->remap_bmaddr)
2344                 iounmap(chip->remap_bmaddr);
2345         pci_release_regions(chip->pci);
2346         pci_disable_device(chip->pci);
2347         kfree(chip);
2348         return 0;
2349 }
2350
2351 #ifdef CONFIG_PM
2352 /*
2353  * power management
2354  */
2355 static int intel8x0_suspend(snd_card_t *card, pm_message_t state)
2356 {
2357         intel8x0_t *chip = card->pm_private_data;
2358         int i;
2359
2360         for (i = 0; i < chip->pcm_devs; i++)
2361                 snd_pcm_suspend_all(chip->pcm[i]);
2362         /* clear nocache */
2363         if (chip->fix_nocache) {
2364                 for (i = 0; i < chip->bdbars_count; i++) {
2365                         ichdev_t *ichdev = &chip->ichd[i];
2366                         if (ichdev->substream && ichdev->page_attr_changed) {
2367                                 snd_pcm_runtime_t *runtime = ichdev->substream->runtime;
2368                                 if (runtime->dma_area)
2369                                         fill_nocache(runtime->dma_area, runtime->dma_bytes, 0);
2370                         }
2371                 }
2372         }
2373         for (i = 0; i < 3; i++)
2374                 if (chip->ac97[i])
2375                         snd_ac97_suspend(chip->ac97[i]);
2376         pci_disable_device(chip->pci);
2377         return 0;
2378 }
2379
2380 static int intel8x0_resume(snd_card_t *card)
2381 {
2382         intel8x0_t *chip = card->pm_private_data;
2383         int i;
2384
2385         pci_enable_device(chip->pci);
2386         pci_set_master(chip->pci);
2387         snd_intel8x0_chip_init(chip, 0);
2388
2389         /* refill nocache */
2390         if (chip->fix_nocache)
2391                 fill_nocache(chip->bdbars.area, chip->bdbars.bytes, 1);
2392
2393         for (i = 0; i < 3; i++)
2394                 if (chip->ac97[i])
2395                         snd_ac97_resume(chip->ac97[i]);
2396
2397         /* refill nocache */
2398         if (chip->fix_nocache) {
2399                 for (i = 0; i < chip->bdbars_count; i++) {
2400                         ichdev_t *ichdev = &chip->ichd[i];
2401                         if (ichdev->substream && ichdev->page_attr_changed) {
2402                                 snd_pcm_runtime_t *runtime = ichdev->substream->runtime;
2403                                 if (runtime->dma_area)
2404                                         fill_nocache(runtime->dma_area, runtime->dma_bytes, 1);
2405                         }
2406                 }
2407         }
2408
2409         return 0;
2410 }
2411 #endif /* CONFIG_PM */
2412
2413 #define INTEL8X0_TESTBUF_SIZE   32768   /* enough large for one shot */
2414
2415 static void __devinit intel8x0_measure_ac97_clock(intel8x0_t *chip)
2416 {
2417         snd_pcm_substream_t *subs;
2418         ichdev_t *ichdev;
2419         unsigned long port;
2420         unsigned long pos, t;
2421         struct timeval start_time, stop_time;
2422
2423         if (chip->ac97_bus->clock != 48000)
2424                 return; /* specified in module option */
2425
2426         subs = chip->pcm[0]->streams[0].substream;
2427         if (! subs || subs->dma_buffer.bytes < INTEL8X0_TESTBUF_SIZE) {
2428                 snd_printk("no playback buffer allocated - aborting measure ac97 clock\n");
2429                 return;
2430         }
2431         ichdev = &chip->ichd[ICHD_PCMOUT];
2432         ichdev->physbuf = subs->dma_buffer.addr;
2433         ichdev->size = chip->ichd[ICHD_PCMOUT].fragsize = INTEL8X0_TESTBUF_SIZE;
2434         ichdev->substream = NULL; /* don't process interrupts */
2435
2436         /* set rate */
2437         if (snd_ac97_set_rate(chip->ac97[0], AC97_PCM_FRONT_DAC_RATE, 48000) < 0) {
2438                 snd_printk(KERN_ERR "cannot set ac97 rate: clock = %d\n", chip->ac97_bus->clock);
2439                 return;
2440         }
2441         snd_intel8x0_setup_periods(chip, ichdev);
2442         port = ichdev->reg_offset;
2443         spin_lock_irq(&chip->reg_lock);
2444         chip->in_measurement = 1;
2445         /* trigger */
2446         if (chip->device_type != DEVICE_ALI)
2447                 iputbyte(chip, port + ICH_REG_OFF_CR, ICH_IOCE | ICH_STARTBM);
2448         else {
2449                 iputbyte(chip, port + ICH_REG_OFF_CR, ICH_IOCE);
2450                 iputdword(chip, ICHREG(ALI_DMACR), 1 << ichdev->ali_slot);
2451         }
2452         do_gettimeofday(&start_time);
2453         spin_unlock_irq(&chip->reg_lock);
2454         set_current_state(TASK_UNINTERRUPTIBLE);
2455         schedule_timeout(HZ / 20);
2456         spin_lock_irq(&chip->reg_lock);
2457         /* check the position */
2458         pos = ichdev->fragsize1;
2459         pos -= igetword(chip, ichdev->reg_offset + ichdev->roff_picb) << ichdev->pos_shift;
2460         pos += ichdev->position;
2461         chip->in_measurement = 0;
2462         do_gettimeofday(&stop_time);
2463         /* stop */
2464         if (chip->device_type == DEVICE_ALI) {
2465                 iputdword(chip, ICHREG(ALI_DMACR), 1 << (ichdev->ali_slot + 8));
2466                 iputbyte(chip, port + ICH_REG_OFF_CR, 0);
2467                 while (igetbyte(chip, port + ICH_REG_OFF_CR))
2468                         ;
2469         } else {
2470                 iputbyte(chip, port + ICH_REG_OFF_CR, 0);
2471                 while (!(igetbyte(chip, port + ichdev->roff_sr) & ICH_DCH))
2472                         ;
2473         }
2474         iputbyte(chip, port + ICH_REG_OFF_CR, ICH_RESETREGS);
2475         spin_unlock_irq(&chip->reg_lock);
2476
2477         t = stop_time.tv_sec - start_time.tv_sec;
2478         t *= 1000000;
2479         t += stop_time.tv_usec - start_time.tv_usec;
2480         printk(KERN_INFO "%s: measured %lu usecs\n", __FUNCTION__, t);
2481         if (t == 0) {
2482                 snd_printk(KERN_ERR "?? calculation error..\n");
2483                 return;
2484         }
2485         pos = (pos / 4) * 1000;
2486         pos = (pos / t) * 1000 + ((pos % t) * 1000) / t;
2487         if (pos < 40000 || pos >= 60000)
2488                 /* abnormal value. hw problem? */
2489                 printk(KERN_INFO "intel8x0: measured clock %ld rejected\n", pos);
2490         else if (pos < 47500 || pos > 48500)
2491                 /* not 48000Hz, tuning the clock.. */
2492                 chip->ac97_bus->clock = (chip->ac97_bus->clock * 48000) / pos;
2493         printk(KERN_INFO "intel8x0: clocking to %d\n", chip->ac97_bus->clock);
2494 }
2495
2496 static void snd_intel8x0_proc_read(snd_info_entry_t * entry,
2497                                    snd_info_buffer_t * buffer)
2498 {
2499         intel8x0_t *chip = entry->private_data;
2500         unsigned int tmp;
2501
2502         snd_iprintf(buffer, "Intel8x0\n\n");
2503         if (chip->device_type == DEVICE_ALI)
2504                 return;
2505         tmp = igetdword(chip, ICHREG(GLOB_STA));
2506         snd_iprintf(buffer, "Global control        : 0x%08x\n", igetdword(chip, ICHREG(GLOB_CNT)));
2507         snd_iprintf(buffer, "Global status         : 0x%08x\n", tmp);
2508         if (chip->device_type == DEVICE_INTEL_ICH4)
2509                 snd_iprintf(buffer, "SDM                   : 0x%08x\n", igetdword(chip, ICHREG(SDM)));
2510         snd_iprintf(buffer, "AC'97 codecs ready    :%s%s%s%s\n",
2511                         tmp & ICH_PCR ? " primary" : "",
2512                         tmp & ICH_SCR ? " secondary" : "",
2513                         tmp & ICH_TCR ? " tertiary" : "",
2514                         (tmp & (ICH_PCR | ICH_SCR | ICH_TCR)) == 0 ? " none" : "");
2515         if (chip->device_type == DEVICE_INTEL_ICH4)
2516                 snd_iprintf(buffer, "AC'97 codecs SDIN     : %i %i %i\n",
2517                         chip->ac97_sdin[0],
2518                         chip->ac97_sdin[1],
2519                         chip->ac97_sdin[2]);
2520 }
2521
2522 static void __devinit snd_intel8x0_proc_init(intel8x0_t * chip)
2523 {
2524         snd_info_entry_t *entry;
2525
2526         if (! snd_card_proc_new(chip->card, "intel8x0", &entry))
2527                 snd_info_set_text_ops(entry, chip, 1024, snd_intel8x0_proc_read);
2528 }
2529
2530 static int snd_intel8x0_dev_free(snd_device_t *device)
2531 {
2532         intel8x0_t *chip = device->device_data;
2533         return snd_intel8x0_free(chip);
2534 }
2535
2536 struct ich_reg_info {
2537         unsigned int int_sta_mask;
2538         unsigned int offset;
2539 };
2540
2541 static int __devinit snd_intel8x0_create(snd_card_t * card,
2542                                          struct pci_dev *pci,
2543                                          unsigned long device_type,
2544                                          intel8x0_t ** r_intel8x0)
2545 {
2546         intel8x0_t *chip;
2547         int err;
2548         unsigned int i;
2549         unsigned int int_sta_masks;
2550         ichdev_t *ichdev;
2551         static snd_device_ops_t ops = {
2552                 .dev_free =     snd_intel8x0_dev_free,
2553         };
2554
2555         static unsigned int bdbars[] = {
2556                 3, /* DEVICE_INTEL */
2557                 6, /* DEVICE_INTEL_ICH4 */
2558                 3, /* DEVICE_SIS */
2559                 6, /* DEVICE_ALI */
2560                 4, /* DEVICE_NFORCE */
2561         };
2562         static struct ich_reg_info intel_regs[6] = {
2563                 { ICH_PIINT, 0 },
2564                 { ICH_POINT, 0x10 },
2565                 { ICH_MCINT, 0x20 },
2566                 { ICH_M2INT, 0x40 },
2567                 { ICH_P2INT, 0x50 },
2568                 { ICH_SPINT, 0x60 },
2569         };
2570         static struct ich_reg_info nforce_regs[4] = {
2571                 { ICH_PIINT, 0 },
2572                 { ICH_POINT, 0x10 },
2573                 { ICH_MCINT, 0x20 },
2574                 { ICH_NVSPINT, 0x70 },
2575         };
2576         static struct ich_reg_info ali_regs[6] = {
2577                 { ALI_INT_PCMIN, 0x40 },
2578                 { ALI_INT_PCMOUT, 0x50 },
2579                 { ALI_INT_MICIN, 0x60 },
2580                 { ALI_INT_CODECSPDIFOUT, 0x70 },
2581                 { ALI_INT_SPDIFIN, 0xa0 },
2582                 { ALI_INT_SPDIFOUT, 0xb0 },
2583         };
2584         struct ich_reg_info *tbl;
2585
2586         *r_intel8x0 = NULL;
2587
2588         if ((err = pci_enable_device(pci)) < 0)
2589                 return err;
2590
2591         chip = kcalloc(1, sizeof(*chip), GFP_KERNEL);
2592         if (chip == NULL) {
2593                 pci_disable_device(pci);
2594                 return -ENOMEM;
2595         }
2596         spin_lock_init(&chip->reg_lock);
2597         chip->device_type = device_type;
2598         chip->card = card;
2599         chip->pci = pci;
2600         chip->irq = -1;
2601
2602         if (pci->vendor == PCI_VENDOR_ID_INTEL &&
2603             pci->device == PCI_DEVICE_ID_INTEL_440MX)
2604                 chip->fix_nocache = 1; /* enable workaround */
2605
2606         /* some Nforce[2] and ICH boards have problems with IRQ handling.
2607          * Needs to return IRQ_HANDLED for unknown irqs.
2608          */
2609         if (device_type == DEVICE_NFORCE)
2610                 chip->buggy_irq = 1;
2611
2612         if ((err = pci_request_regions(pci, card->shortname)) < 0) {
2613                 kfree(chip);
2614                 pci_disable_device(pci);
2615                 return err;
2616         }
2617
2618         if (device_type == DEVICE_ALI) {
2619                 /* ALI5455 has no ac97 region */
2620                 chip->bmaddr = pci_resource_start(pci, 0);
2621                 goto port_inited;
2622         }
2623
2624         if (pci_resource_flags(pci, 2) & IORESOURCE_MEM) {      /* ICH4 and Nforce */
2625                 chip->mmio = 1;
2626                 chip->addr = pci_resource_start(pci, 2);
2627                 chip->remap_addr = ioremap_nocache(chip->addr,
2628                                                    pci_resource_len(pci, 2));
2629                 if (chip->remap_addr == NULL) {
2630                         snd_printk("AC'97 space ioremap problem\n");
2631                         snd_intel8x0_free(chip);
2632                         return -EIO;
2633                 }
2634         } else {
2635                 chip->addr = pci_resource_start(pci, 0);
2636         }
2637         if (pci_resource_flags(pci, 3) & IORESOURCE_MEM) {      /* ICH4 */
2638                 chip->bm_mmio = 1;
2639                 chip->bmaddr = pci_resource_start(pci, 3);
2640                 chip->remap_bmaddr = ioremap_nocache(chip->bmaddr,
2641                                                      pci_resource_len(pci, 3));
2642                 if (chip->remap_bmaddr == NULL) {
2643                         snd_printk("Controller space ioremap problem\n");
2644                         snd_intel8x0_free(chip);
2645                         return -EIO;
2646                 }
2647         } else {
2648                 chip->bmaddr = pci_resource_start(pci, 1);
2649         }
2650
2651  port_inited:
2652         if (request_irq(pci->irq, snd_intel8x0_interrupt, SA_INTERRUPT|SA_SHIRQ, card->shortname, (void *)chip)) {
2653                 snd_printk("unable to grab IRQ %d\n", pci->irq);
2654                 snd_intel8x0_free(chip);
2655                 return -EBUSY;
2656         }
2657         chip->irq = pci->irq;
2658         pci_set_master(pci);
2659         synchronize_irq(chip->irq);
2660
2661         chip->bdbars_count = bdbars[device_type];
2662
2663         /* initialize offsets */
2664         switch (device_type) {
2665         case DEVICE_NFORCE:
2666                 tbl = nforce_regs;
2667                 break;
2668         case DEVICE_ALI:
2669                 tbl = ali_regs;
2670                 break;
2671         default:
2672                 tbl = intel_regs;
2673                 break;
2674         }
2675         for (i = 0; i < chip->bdbars_count; i++) {
2676                 ichdev = &chip->ichd[i];
2677                 ichdev->ichd = i;
2678                 ichdev->reg_offset = tbl[i].offset;
2679                 ichdev->int_sta_mask = tbl[i].int_sta_mask;
2680                 if (device_type == DEVICE_SIS) {
2681                         /* SiS 7012 swaps the registers */
2682                         ichdev->roff_sr = ICH_REG_OFF_PICB;
2683                         ichdev->roff_picb = ICH_REG_OFF_SR;
2684                 } else {
2685                         ichdev->roff_sr = ICH_REG_OFF_SR;
2686                         ichdev->roff_picb = ICH_REG_OFF_PICB;
2687                 }
2688                 if (device_type == DEVICE_ALI)
2689                         ichdev->ali_slot = (ichdev->reg_offset - 0x40) / 0x10;
2690                 /* SIS7012 handles the pcm data in bytes, others are in samples */
2691                 ichdev->pos_shift = (device_type == DEVICE_SIS) ? 0 : 1;
2692         }
2693
2694         /* allocate buffer descriptor lists */
2695         /* the start of each lists must be aligned to 8 bytes */
2696         if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci),
2697                                 chip->bdbars_count * sizeof(u32) * ICH_MAX_FRAGS * 2,
2698                                 &chip->bdbars) < 0) {
2699                 snd_intel8x0_free(chip);
2700                 snd_printk(KERN_ERR "intel8x0: cannot allocate buffer descriptors\n");
2701                 return -ENOMEM;
2702         }
2703         /* tables must be aligned to 8 bytes here, but the kernel pages
2704            are much bigger, so we don't care (on i386) */
2705         /* workaround for 440MX */
2706         if (chip->fix_nocache)
2707                 fill_nocache(chip->bdbars.area, chip->bdbars.bytes, 1);
2708         int_sta_masks = 0;
2709         for (i = 0; i < chip->bdbars_count; i++) {
2710                 ichdev = &chip->ichd[i];
2711                 ichdev->bdbar = ((u32 *)chip->bdbars.area) + (i * ICH_MAX_FRAGS * 2);
2712                 ichdev->bdbar_addr = chip->bdbars.addr + (i * sizeof(u32) * ICH_MAX_FRAGS * 2);
2713                 int_sta_masks |= ichdev->int_sta_mask;
2714         }
2715         chip->int_sta_reg = device_type == DEVICE_ALI ? ICH_REG_ALI_INTERRUPTSR : ICH_REG_GLOB_STA;
2716         chip->int_sta_mask = int_sta_masks;
2717
2718         if ((err = snd_intel8x0_chip_init(chip, 1)) < 0) {
2719                 snd_intel8x0_free(chip);
2720                 return err;
2721         }
2722
2723         snd_card_set_pm_callback(card, intel8x0_suspend, intel8x0_resume, chip);
2724
2725         if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
2726                 snd_intel8x0_free(chip);
2727                 return err;
2728         }
2729
2730         snd_card_set_dev(card, &pci->dev);
2731
2732         *r_intel8x0 = chip;
2733         return 0;
2734 }
2735
2736 static struct shortname_table {
2737         unsigned int id;
2738         const char *s;
2739 } shortnames[] __devinitdata = {
2740         { PCI_DEVICE_ID_INTEL_82801, "Intel 82801AA-ICH" },
2741         { PCI_DEVICE_ID_INTEL_82901, "Intel 82901AB-ICH0" },
2742         { PCI_DEVICE_ID_INTEL_82801BA, "Intel 82801BA-ICH2" },
2743         { PCI_DEVICE_ID_INTEL_440MX, "Intel 440MX" },
2744         { PCI_DEVICE_ID_INTEL_ICH3, "Intel 82801CA-ICH3" },
2745         { PCI_DEVICE_ID_INTEL_ICH4, "Intel 82801DB-ICH4" },
2746         { PCI_DEVICE_ID_INTEL_ICH5, "Intel ICH5" },
2747         { PCI_DEVICE_ID_INTEL_ESB_5, "Intel 6300ESB" },
2748         { PCI_DEVICE_ID_INTEL_ICH6_18, "Intel ICH6" },
2749         { PCI_DEVICE_ID_INTEL_ICH7_20, "Intel ICH7" },
2750         { PCI_DEVICE_ID_INTEL_ESB2_14, "Intel ESB2" },
2751         { PCI_DEVICE_ID_SI_7012, "SiS SI7012" },
2752         { PCI_DEVICE_ID_NVIDIA_MCP_AUDIO, "NVidia nForce" },
2753         { PCI_DEVICE_ID_NVIDIA_MCP2_AUDIO, "NVidia nForce2" },
2754         { PCI_DEVICE_ID_NVIDIA_MCP3_AUDIO, "NVidia nForce3" },
2755         { PCI_DEVICE_ID_NVIDIA_CK8S_AUDIO, "NVidia CK8S" },
2756         { PCI_DEVICE_ID_NVIDIA_CK804_AUDIO, "NVidia CK804" },
2757         { PCI_DEVICE_ID_NVIDIA_CK8_AUDIO, "NVidia CK8" },
2758         { 0x003a, "NVidia MCP04" },
2759         { 0x746d, "AMD AMD8111" },
2760         { 0x7445, "AMD AMD768" },
2761         { 0x5455, "ALi M5455" },
2762         { 0, NULL },
2763 };
2764
2765 static int __devinit snd_intel8x0_probe(struct pci_dev *pci,
2766                                         const struct pci_device_id *pci_id)
2767 {
2768         static int dev;
2769         snd_card_t *card;
2770         intel8x0_t *chip;
2771         int err;
2772         struct shortname_table *name;
2773
2774         if (dev >= SNDRV_CARDS)
2775                 return -ENODEV;
2776         if (!enable[dev]) {
2777                 dev++;
2778                 return -ENOENT;
2779         }
2780
2781         card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0);
2782         if (card == NULL)
2783                 return -ENOMEM;
2784
2785         switch (pci_id->driver_data) {
2786         case DEVICE_NFORCE:
2787                 strcpy(card->driver, "NFORCE");
2788                 break;
2789         case DEVICE_INTEL_ICH4:
2790                 strcpy(card->driver, "ICH4");
2791                 break;
2792         default:
2793                 strcpy(card->driver, "ICH");
2794                 break;
2795         }
2796
2797         strcpy(card->shortname, "Intel ICH");
2798         for (name = shortnames; name->id; name++) {
2799                 if (pci->device == name->id) {
2800                         strcpy(card->shortname, name->s);
2801                         break;
2802                 }
2803         }
2804
2805         if ((err = snd_intel8x0_create(card, pci, pci_id->driver_data, &chip)) < 0) {
2806                 snd_card_free(card);
2807                 return err;
2808         }
2809         if (buggy_irq[dev])
2810                 chip->buggy_irq = 1;
2811         if (xbox[dev])
2812                 chip->xbox = 1;
2813
2814         if ((err = snd_intel8x0_mixer(chip, ac97_clock[dev], ac97_quirk[dev])) < 0) {
2815                 snd_card_free(card);
2816                 return err;
2817         }
2818         if ((err = snd_intel8x0_pcm(chip)) < 0) {
2819                 snd_card_free(card);
2820                 return err;
2821         }
2822
2823         snd_intel8x0_proc_init(chip);
2824
2825         snprintf(card->longname, sizeof(card->longname),
2826                  "%s with %s at %#lx, irq %i", card->shortname,
2827                  snd_ac97_get_short_name(chip->ac97[0]), chip->addr, chip->irq);
2828
2829         if (! ac97_clock[dev])
2830                 intel8x0_measure_ac97_clock(chip);
2831
2832         if ((err = snd_card_register(card)) < 0) {
2833                 snd_card_free(card);
2834                 return err;
2835         }
2836         pci_set_drvdata(pci, card);
2837         dev++;
2838         return 0;
2839 }
2840
2841 static void __devexit snd_intel8x0_remove(struct pci_dev *pci)
2842 {
2843         snd_card_free(pci_get_drvdata(pci));
2844         pci_set_drvdata(pci, NULL);
2845 }
2846
2847 static struct pci_driver driver = {
2848         .name = "Intel ICH",
2849         .id_table = snd_intel8x0_ids,
2850         .probe = snd_intel8x0_probe,
2851         .remove = __devexit_p(snd_intel8x0_remove),
2852         SND_PCI_PM_CALLBACKS
2853 };
2854
2855
2856 static int __init alsa_card_intel8x0_init(void)
2857 {
2858         return pci_register_driver(&driver);
2859 }
2860
2861 static void __exit alsa_card_intel8x0_exit(void)
2862 {
2863         pci_unregister_driver(&driver);
2864 }
2865
2866 module_init(alsa_card_intel8x0_init)
2867 module_exit(alsa_card_intel8x0_exit)