sound/pci/maestro3.c

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3  * Driver for ESS Maestro3/Allegro (ES1988) soundcards.
   4  * Copyright (c) 2000 by Zach Brown <zab@zabbo.net>
   5  *                       Takashi Iwai <tiwai@suse.de>
   6  *
   7  * Most of the hardware init stuffs are based on maestro3 driver for
   8  * OSS/Free by Zach Brown.  Many thanks to Zach!
   9  *
  10  * ChangeLog:
  11  * Aug. 27, 2001
  12  *     - Fixed deadlock on capture
  13  *     - Added Canyon3D-2 support by Rob Riggs <rob@pangalactic.org>
  14  */
  15
  16 #define CARD_NAME "ESS Maestro3/Allegro/Canyon3D-2"
  17 #define DRIVER_NAME "Maestro3"
  18
  19 #include <linux/io.h>
  20 #include <linux/delay.h>
  21 #include <linux/interrupt.h>
  22 #include <linux/init.h>
  23 #include <linux/pci.h>
  24 #include <linux/dma-mapping.h>
  25 #include <linux/slab.h>
  26 #include <linux/vmalloc.h>
  27 #include <linux/module.h>
  28 #include <linux/firmware.h>
  29 #include <linux/input.h>
  30 #include <sound/core.h>
  31 #include <sound/info.h>
  32 #include <sound/control.h>
  33 #include <sound/pcm.h>
  34 #include <sound/mpu401.h>
  35 #include <sound/ac97_codec.h>
  36 #include <sound/initval.h>
  37 #include <asm/byteorder.h>
  38
  39 MODULE_AUTHOR("Zach Brown <zab@zabbo.net>, Takashi Iwai <tiwai@suse.de>");
  40 MODULE_DESCRIPTION("ESS Maestro3 PCI");
  41 MODULE_LICENSE("GPL");
  42 MODULE_FIRMWARE("ess/maestro3_assp_kernel.fw");
  43 MODULE_FIRMWARE("ess/maestro3_assp_minisrc.fw");
  44
  45 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;      /* Index 0-MAX */
  46 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;       /* ID for this card */
  47 static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* all enabled */
  48 static bool external_amp[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 1};
  49 static int amp_gpio[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = -1};
  50
  51 module_param_array(index, int, NULL, 0444);
  52 MODULE_PARM_DESC(index, "Index value for " CARD_NAME " soundcard.");
  53 module_param_array(id, charp, NULL, 0444);
  54 MODULE_PARM_DESC(id, "ID string for " CARD_NAME " soundcard.");
  55 module_param_array(enable, bool, NULL, 0444);
  56 MODULE_PARM_DESC(enable, "Enable this soundcard.");
  57 module_param_array(external_amp, bool, NULL, 0444);
  58 MODULE_PARM_DESC(external_amp, "Enable external amp for " CARD_NAME " soundcard.");
  59 module_param_array(amp_gpio, int, NULL, 0444);
  60 MODULE_PARM_DESC(amp_gpio, "GPIO pin number for external amp. (default = -1)");
  61
  62 #define MAX_PLAYBACKS   2
  63 #define MAX_CAPTURES    1
  64 #define NR_DSPS         (MAX_PLAYBACKS + MAX_CAPTURES)
  65
  66
  67 /*
  68  * maestro3 registers
  69  */
  70
  71 /* Allegro PCI configuration registers */
  72 #define PCI_LEGACY_AUDIO_CTRL   0x40
  73 #define SOUND_BLASTER_ENABLE    0x00000001
  74 #define FM_SYNTHESIS_ENABLE     0x00000002
  75 #define GAME_PORT_ENABLE        0x00000004
  76 #define MPU401_IO_ENABLE        0x00000008
  77 #define MPU401_IRQ_ENABLE       0x00000010
  78 #define ALIAS_10BIT_IO          0x00000020
  79 #define SB_DMA_MASK             0x000000C0
  80 #define SB_DMA_0                0x00000040
  81 #define SB_DMA_1                0x00000040
  82 #define SB_DMA_R                0x00000080
  83 #define SB_DMA_3                0x000000C0
  84 #define SB_IRQ_MASK             0x00000700
  85 #define SB_IRQ_5                0x00000000
  86 #define SB_IRQ_7                0x00000100
  87 #define SB_IRQ_9                0x00000200
  88 #define SB_IRQ_10               0x00000300
  89 #define MIDI_IRQ_MASK           0x00003800
  90 #define SERIAL_IRQ_ENABLE       0x00004000
  91 #define DISABLE_LEGACY          0x00008000
  92
  93 #define PCI_ALLEGRO_CONFIG      0x50
  94 #define SB_ADDR_240             0x00000004
  95 #define MPU_ADDR_MASK           0x00000018
  96 #define MPU_ADDR_330            0x00000000
  97 #define MPU_ADDR_300            0x00000008
  98 #define MPU_ADDR_320            0x00000010
  99 #define MPU_ADDR_340            0x00000018
 100 #define USE_PCI_TIMING          0x00000040
 101 #define POSTED_WRITE_ENABLE     0x00000080
 102 #define DMA_POLICY_MASK         0x00000700
 103 #define DMA_DDMA                0x00000000
 104 #define DMA_TDMA                0x00000100
 105 #define DMA_PCPCI               0x00000200
 106 #define DMA_WBDMA16             0x00000400
 107 #define DMA_WBDMA4              0x00000500
 108 #define DMA_WBDMA2              0x00000600
 109 #define DMA_WBDMA1              0x00000700
 110 #define DMA_SAFE_GUARD          0x00000800
 111 #define HI_PERF_GP_ENABLE       0x00001000
 112 #define PIC_SNOOP_MODE_0        0x00002000
 113 #define PIC_SNOOP_MODE_1        0x00004000
 114 #define SOUNDBLASTER_IRQ_MASK   0x00008000
 115 #define RING_IN_ENABLE          0x00010000
 116 #define SPDIF_TEST_MODE         0x00020000
 117 #define CLK_MULT_MODE_SELECT_2  0x00040000
 118 #define EEPROM_WRITE_ENABLE     0x00080000
 119 #define CODEC_DIR_IN            0x00100000
 120 #define HV_BUTTON_FROM_GD       0x00200000
 121 #define REDUCED_DEBOUNCE        0x00400000
 122 #define HV_CTRL_ENABLE          0x00800000
 123 #define SPDIF_ENABLE            0x01000000
 124 #define CLK_DIV_SELECT          0x06000000
 125 #define CLK_DIV_BY_48           0x00000000
 126 #define CLK_DIV_BY_49           0x02000000
 127 #define CLK_DIV_BY_50           0x04000000
 128 #define CLK_DIV_RESERVED        0x06000000
 129 #define PM_CTRL_ENABLE          0x08000000
 130 #define CLK_MULT_MODE_SELECT    0x30000000
 131 #define CLK_MULT_MODE_SHIFT     28
 132 #define CLK_MULT_MODE_0         0x00000000
 133 #define CLK_MULT_MODE_1         0x10000000
 134 #define CLK_MULT_MODE_2         0x20000000
 135 #define CLK_MULT_MODE_3         0x30000000
 136 #define INT_CLK_SELECT          0x40000000
 137 #define INT_CLK_MULT_RESET      0x80000000
 138
 139 /* M3 */
 140 #define INT_CLK_SRC_NOT_PCI     0x00100000
 141 #define INT_CLK_MULT_ENABLE     0x80000000
 142
 143 #define PCI_ACPI_CONTROL        0x54
 144 #define PCI_ACPI_D0             0x00000000
 145 #define PCI_ACPI_D1             0xB4F70000
 146 #define PCI_ACPI_D2             0xB4F7B4F7
 147
 148 #define PCI_USER_CONFIG         0x58
 149 #define EXT_PCI_MASTER_ENABLE   0x00000001
 150 #define SPDIF_OUT_SELECT        0x00000002
 151 #define TEST_PIN_DIR_CTRL       0x00000004
 152 #define AC97_CODEC_TEST         0x00000020
 153 #define TRI_STATE_BUFFER        0x00000080
 154 #define IN_CLK_12MHZ_SELECT     0x00000100
 155 #define MULTI_FUNC_DISABLE      0x00000200
 156 #define EXT_MASTER_PAIR_SEL     0x00000400
 157 #define PCI_MASTER_SUPPORT      0x00000800
 158 #define STOP_CLOCK_ENABLE       0x00001000
 159 #define EAPD_DRIVE_ENABLE       0x00002000
 160 #define REQ_TRI_STATE_ENABLE    0x00004000
 161 #define REQ_LOW_ENABLE          0x00008000
 162 #define MIDI_1_ENABLE           0x00010000
 163 #define MIDI_2_ENABLE           0x00020000
 164 #define SB_AUDIO_SYNC           0x00040000
 165 #define HV_CTRL_TEST            0x00100000
 166 #define SOUNDBLASTER_TEST       0x00400000
 167
 168 #define PCI_USER_CONFIG_C       0x5C
 169
 170 #define PCI_DDMA_CTRL           0x60
 171 #define DDMA_ENABLE             0x00000001
 172
 173
 174 /* Allegro registers */
 175 #define HOST_INT_CTRL           0x18
 176 #define SB_INT_ENABLE           0x0001
 177 #define MPU401_INT_ENABLE       0x0002
 178 #define ASSP_INT_ENABLE         0x0010
 179 #define RING_INT_ENABLE         0x0020
 180 #define HV_INT_ENABLE           0x0040
 181 #define CLKRUN_GEN_ENABLE       0x0100
 182 #define HV_CTRL_TO_PME          0x0400
 183 #define SOFTWARE_RESET_ENABLE   0x8000
 184
 185 /*
 186  * should be using the above defines, probably.
 187  */
 188 #define REGB_ENABLE_RESET               0x01
 189 #define REGB_STOP_CLOCK                 0x10
 190
 191 #define HOST_INT_STATUS         0x1A
 192 #define SB_INT_PENDING          0x01
 193 #define MPU401_INT_PENDING      0x02
 194 #define ASSP_INT_PENDING        0x10
 195 #define RING_INT_PENDING        0x20
 196 #define HV_INT_PENDING          0x40
 197
 198 #define HARDWARE_VOL_CTRL       0x1B
 199 #define SHADOW_MIX_REG_VOICE    0x1C
 200 #define HW_VOL_COUNTER_VOICE    0x1D
 201 #define SHADOW_MIX_REG_MASTER   0x1E
 202 #define HW_VOL_COUNTER_MASTER   0x1F
 203
 204 #define CODEC_COMMAND           0x30
 205 #define CODEC_READ_B            0x80
 206
 207 #define CODEC_STATUS            0x30
 208 #define CODEC_BUSY_B            0x01
 209
 210 #define CODEC_DATA              0x32
 211
 212 #define RING_BUS_CTRL_A         0x36
 213 #define RAC_PME_ENABLE          0x0100
 214 #define RAC_SDFS_ENABLE         0x0200
 215 #define LAC_PME_ENABLE          0x0400
 216 #define LAC_SDFS_ENABLE         0x0800
 217 #define SERIAL_AC_LINK_ENABLE   0x1000
 218 #define IO_SRAM_ENABLE          0x2000
 219 #define IIS_INPUT_ENABLE        0x8000
 220
 221 #define RING_BUS_CTRL_B         0x38
 222 #define SECOND_CODEC_ID_MASK    0x0003
 223 #define SPDIF_FUNC_ENABLE       0x0010
 224 #define SECOND_AC_ENABLE        0x0020
 225 #define SB_MODULE_INTF_ENABLE   0x0040
 226 #define SSPE_ENABLE             0x0040
 227 #define M3I_DOCK_ENABLE         0x0080
 228
 229 #define SDO_OUT_DEST_CTRL       0x3A
 230 #define COMMAND_ADDR_OUT        0x0003
 231 #define PCM_LR_OUT_LOCAL        0x0000
 232 #define PCM_LR_OUT_REMOTE       0x0004
 233 #define PCM_LR_OUT_MUTE         0x0008
 234 #define PCM_LR_OUT_BOTH         0x000C
 235 #define LINE1_DAC_OUT_LOCAL     0x0000
 236 #define LINE1_DAC_OUT_REMOTE    0x0010
 237 #define LINE1_DAC_OUT_MUTE      0x0020
 238 #define LINE1_DAC_OUT_BOTH      0x0030
 239 #define PCM_CLS_OUT_LOCAL       0x0000
 240 #define PCM_CLS_OUT_REMOTE      0x0040
 241 #define PCM_CLS_OUT_MUTE        0x0080
 242 #define PCM_CLS_OUT_BOTH        0x00C0
 243 #define PCM_RLF_OUT_LOCAL       0x0000
 244 #define PCM_RLF_OUT_REMOTE      0x0100
 245 #define PCM_RLF_OUT_MUTE        0x0200
 246 #define PCM_RLF_OUT_BOTH        0x0300
 247 #define LINE2_DAC_OUT_LOCAL     0x0000
 248 #define LINE2_DAC_OUT_REMOTE    0x0400
 249 #define LINE2_DAC_OUT_MUTE      0x0800
 250 #define LINE2_DAC_OUT_BOTH      0x0C00
 251 #define HANDSET_OUT_LOCAL       0x0000
 252 #define HANDSET_OUT_REMOTE      0x1000
 253 #define HANDSET_OUT_MUTE        0x2000
 254 #define HANDSET_OUT_BOTH        0x3000
 255 #define IO_CTRL_OUT_LOCAL       0x0000
 256 #define IO_CTRL_OUT_REMOTE      0x4000
 257 #define IO_CTRL_OUT_MUTE        0x8000
 258 #define IO_CTRL_OUT_BOTH        0xC000
 259
 260 #define SDO_IN_DEST_CTRL        0x3C
 261 #define STATUS_ADDR_IN          0x0003
 262 #define PCM_LR_IN_LOCAL         0x0000
 263 #define PCM_LR_IN_REMOTE        0x0004
 264 #define PCM_LR_RESERVED         0x0008
 265 #define PCM_LR_IN_BOTH          0x000C
 266 #define LINE1_ADC_IN_LOCAL      0x0000
 267 #define LINE1_ADC_IN_REMOTE     0x0010
 268 #define LINE1_ADC_IN_MUTE       0x0020
 269 #define MIC_ADC_IN_LOCAL        0x0000
 270 #define MIC_ADC_IN_REMOTE       0x0040
 271 #define MIC_ADC_IN_MUTE         0x0080
 272 #define LINE2_DAC_IN_LOCAL      0x0000
 273 #define LINE2_DAC_IN_REMOTE     0x0400
 274 #define LINE2_DAC_IN_MUTE       0x0800
 275 #define HANDSET_IN_LOCAL        0x0000
 276 #define HANDSET_IN_REMOTE       0x1000
 277 #define HANDSET_IN_MUTE         0x2000
 278 #define IO_STATUS_IN_LOCAL      0x0000
 279 #define IO_STATUS_IN_REMOTE     0x4000
 280
 281 #define SPDIF_IN_CTRL           0x3E
 282 #define SPDIF_IN_ENABLE         0x0001
 283
 284 #define GPIO_DATA               0x60
 285 #define GPIO_DATA_MASK          0x0FFF
 286 #define GPIO_HV_STATUS          0x3000
 287 #define GPIO_PME_STATUS         0x4000
 288
 289 #define GPIO_MASK               0x64
 290 #define GPIO_DIRECTION          0x68
 291 #define GPO_PRIMARY_AC97        0x0001
 292 #define GPI_LINEOUT_SENSE       0x0004
 293 #define GPO_SECONDARY_AC97      0x0008
 294 #define GPI_VOL_DOWN            0x0010
 295 #define GPI_VOL_UP              0x0020
 296 #define GPI_IIS_CLK             0x0040
 297 #define GPI_IIS_LRCLK           0x0080
 298 #define GPI_IIS_DATA            0x0100
 299 #define GPI_DOCKING_STATUS      0x0100
 300 #define GPI_HEADPHONE_SENSE     0x0200
 301 #define GPO_EXT_AMP_SHUTDOWN    0x1000
 302
 303 #define GPO_EXT_AMP_M3          1       /* default m3 amp */
 304 #define GPO_EXT_AMP_ALLEGRO     8       /* default allegro amp */
 305
 306 /* M3 */
 307 #define GPO_M3_EXT_AMP_SHUTDN   0x0002
 308
 309 #define ASSP_INDEX_PORT         0x80
 310 #define ASSP_MEMORY_PORT        0x82
 311 #define ASSP_DATA_PORT          0x84
 312
 313 #define MPU401_DATA_PORT        0x98
 314 #define MPU401_STATUS_PORT      0x99
 315
 316 #define CLK_MULT_DATA_PORT      0x9C
 317
 318 #define ASSP_CONTROL_A          0xA2
 319 #define ASSP_0_WS_ENABLE        0x01
 320 #define ASSP_CTRL_A_RESERVED1   0x02
 321 #define ASSP_CTRL_A_RESERVED2   0x04
 322 #define ASSP_CLK_49MHZ_SELECT   0x08
 323 #define FAST_PLU_ENABLE         0x10
 324 #define ASSP_CTRL_A_RESERVED3   0x20
 325 #define DSP_CLK_36MHZ_SELECT    0x40
 326
 327 #define ASSP_CONTROL_B          0xA4
 328 #define RESET_ASSP              0x00
 329 #define RUN_ASSP                0x01
 330 #define ENABLE_ASSP_CLOCK       0x00
 331 #define STOP_ASSP_CLOCK         0x10
 332 #define RESET_TOGGLE            0x40
 333
 334 #define ASSP_CONTROL_C          0xA6
 335 #define ASSP_HOST_INT_ENABLE    0x01
 336 #define FM_ADDR_REMAP_DISABLE   0x02
 337 #define HOST_WRITE_PORT_ENABLE  0x08
 338
 339 #define ASSP_HOST_INT_STATUS    0xAC
 340 #define DSP2HOST_REQ_PIORECORD  0x01
 341 #define DSP2HOST_REQ_I2SRATE    0x02
 342 #define DSP2HOST_REQ_TIMER      0x04
 343
 344 /*
 345  * ASSP control regs
 346  */
 347 #define DSP_PORT_TIMER_COUNT    0x06
 348
 349 #define DSP_PORT_MEMORY_INDEX   0x80
 350
 351 #define DSP_PORT_MEMORY_TYPE    0x82
 352 #define MEMTYPE_INTERNAL_CODE   0x0002
 353 #define MEMTYPE_INTERNAL_DATA   0x0003
 354 #define MEMTYPE_MASK            0x0003
 355
 356 #define DSP_PORT_MEMORY_DATA    0x84
 357
 358 #define DSP_PORT_CONTROL_REG_A  0xA2
 359 #define DSP_PORT_CONTROL_REG_B  0xA4
 360 #define DSP_PORT_CONTROL_REG_C  0xA6
 361
 362 #define REV_A_CODE_MEMORY_BEGIN         0x0000
 363 #define REV_A_CODE_MEMORY_END           0x0FFF
 364 #define REV_A_CODE_MEMORY_UNIT_LENGTH   0x0040
 365 #define REV_A_CODE_MEMORY_LENGTH        (REV_A_CODE_MEMORY_END - REV_A_CODE_MEMORY_BEGIN + 1)
 366
 367 #define REV_B_CODE_MEMORY_BEGIN         0x0000
 368 #define REV_B_CODE_MEMORY_END           0x0BFF
 369 #define REV_B_CODE_MEMORY_UNIT_LENGTH   0x0040
 370 #define REV_B_CODE_MEMORY_LENGTH        (REV_B_CODE_MEMORY_END - REV_B_CODE_MEMORY_BEGIN + 1)
 371
 372 #define REV_A_DATA_MEMORY_BEGIN         0x1000
 373 #define REV_A_DATA_MEMORY_END           0x2FFF
 374 #define REV_A_DATA_MEMORY_UNIT_LENGTH   0x0080
 375 #define REV_A_DATA_MEMORY_LENGTH        (REV_A_DATA_MEMORY_END - REV_A_DATA_MEMORY_BEGIN + 1)
 376
 377 #define REV_B_DATA_MEMORY_BEGIN         0x1000
 378 #define REV_B_DATA_MEMORY_END           0x2BFF
 379 #define REV_B_DATA_MEMORY_UNIT_LENGTH   0x0080
 380 #define REV_B_DATA_MEMORY_LENGTH        (REV_B_DATA_MEMORY_END - REV_B_DATA_MEMORY_BEGIN + 1)
 381
 382
 383 #define NUM_UNITS_KERNEL_CODE          16
 384 #define NUM_UNITS_KERNEL_DATA           2
 385
 386 #define NUM_UNITS_KERNEL_CODE_WITH_HSP 16
 387 #define NUM_UNITS_KERNEL_DATA_WITH_HSP  5
 388
 389 /*
 390  * Kernel data layout
 391  */
 392
 393 #define DP_SHIFT_COUNT                  7
 394
 395 #define KDATA_BASE_ADDR                 0x1000
 396 #define KDATA_BASE_ADDR2                0x1080
 397
 398 #define KDATA_TASK0                     (KDATA_BASE_ADDR + 0x0000)
 399 #define KDATA_TASK1                     (KDATA_BASE_ADDR + 0x0001)
 400 #define KDATA_TASK2                     (KDATA_BASE_ADDR + 0x0002)
 401 #define KDATA_TASK3                     (KDATA_BASE_ADDR + 0x0003)
 402 #define KDATA_TASK4                     (KDATA_BASE_ADDR + 0x0004)
 403 #define KDATA_TASK5                     (KDATA_BASE_ADDR + 0x0005)
 404 #define KDATA_TASK6                     (KDATA_BASE_ADDR + 0x0006)
 405 #define KDATA_TASK7                     (KDATA_BASE_ADDR + 0x0007)
 406 #define KDATA_TASK_ENDMARK              (KDATA_BASE_ADDR + 0x0008)
 407
 408 #define KDATA_CURRENT_TASK              (KDATA_BASE_ADDR + 0x0009)
 409 #define KDATA_TASK_SWITCH               (KDATA_BASE_ADDR + 0x000A)
 410
 411 #define KDATA_INSTANCE0_POS3D           (KDATA_BASE_ADDR + 0x000B)
 412 #define KDATA_INSTANCE1_POS3D           (KDATA_BASE_ADDR + 0x000C)
 413 #define KDATA_INSTANCE2_POS3D           (KDATA_BASE_ADDR + 0x000D)
 414 #define KDATA_INSTANCE3_POS3D           (KDATA_BASE_ADDR + 0x000E)
 415 #define KDATA_INSTANCE4_POS3D           (KDATA_BASE_ADDR + 0x000F)
 416 #define KDATA_INSTANCE5_POS3D           (KDATA_BASE_ADDR + 0x0010)
 417 #define KDATA_INSTANCE6_POS3D           (KDATA_BASE_ADDR + 0x0011)
 418 #define KDATA_INSTANCE7_POS3D           (KDATA_BASE_ADDR + 0x0012)
 419 #define KDATA_INSTANCE8_POS3D           (KDATA_BASE_ADDR + 0x0013)
 420 #define KDATA_INSTANCE_POS3D_ENDMARK    (KDATA_BASE_ADDR + 0x0014)
 421
 422 #define KDATA_INSTANCE0_SPKVIRT         (KDATA_BASE_ADDR + 0x0015)
 423 #define KDATA_INSTANCE_SPKVIRT_ENDMARK  (KDATA_BASE_ADDR + 0x0016)
 424
 425 #define KDATA_INSTANCE0_SPDIF           (KDATA_BASE_ADDR + 0x0017)
 426 #define KDATA_INSTANCE_SPDIF_ENDMARK    (KDATA_BASE_ADDR + 0x0018)
 427
 428 #define KDATA_INSTANCE0_MODEM           (KDATA_BASE_ADDR + 0x0019)
 429 #define KDATA_INSTANCE_MODEM_ENDMARK    (KDATA_BASE_ADDR + 0x001A)
 430
 431 #define KDATA_INSTANCE0_SRC             (KDATA_BASE_ADDR + 0x001B)
 432 #define KDATA_INSTANCE1_SRC             (KDATA_BASE_ADDR + 0x001C)
 433 #define KDATA_INSTANCE_SRC_ENDMARK      (KDATA_BASE_ADDR + 0x001D)
 434
 435 #define KDATA_INSTANCE0_MINISRC         (KDATA_BASE_ADDR + 0x001E)
 436 #define KDATA_INSTANCE1_MINISRC         (KDATA_BASE_ADDR + 0x001F)
 437 #define KDATA_INSTANCE2_MINISRC         (KDATA_BASE_ADDR + 0x0020)
 438 #define KDATA_INSTANCE3_MINISRC         (KDATA_BASE_ADDR + 0x0021)
 439 #define KDATA_INSTANCE_MINISRC_ENDMARK  (KDATA_BASE_ADDR + 0x0022)
 440
 441 #define KDATA_INSTANCE0_CPYTHRU         (KDATA_BASE_ADDR + 0x0023)
 442 #define KDATA_INSTANCE1_CPYTHRU         (KDATA_BASE_ADDR + 0x0024)
 443 #define KDATA_INSTANCE_CPYTHRU_ENDMARK  (KDATA_BASE_ADDR + 0x0025)
 444
 445 #define KDATA_CURRENT_DMA               (KDATA_BASE_ADDR + 0x0026)
 446 #define KDATA_DMA_SWITCH                (KDATA_BASE_ADDR + 0x0027)
 447 #define KDATA_DMA_ACTIVE                (KDATA_BASE_ADDR + 0x0028)
 448
 449 #define KDATA_DMA_XFER0                 (KDATA_BASE_ADDR + 0x0029)
 450 #define KDATA_DMA_XFER1                 (KDATA_BASE_ADDR + 0x002A)
 451 #define KDATA_DMA_XFER2                 (KDATA_BASE_ADDR + 0x002B)
 452 #define KDATA_DMA_XFER3                 (KDATA_BASE_ADDR + 0x002C)
 453 #define KDATA_DMA_XFER4                 (KDATA_BASE_ADDR + 0x002D)
 454 #define KDATA_DMA_XFER5                 (KDATA_BASE_ADDR + 0x002E)
 455 #define KDATA_DMA_XFER6                 (KDATA_BASE_ADDR + 0x002F)
 456 #define KDATA_DMA_XFER7                 (KDATA_BASE_ADDR + 0x0030)
 457 #define KDATA_DMA_XFER8                 (KDATA_BASE_ADDR + 0x0031)
 458 #define KDATA_DMA_XFER_ENDMARK          (KDATA_BASE_ADDR + 0x0032)
 459
 460 #define KDATA_I2S_SAMPLE_COUNT          (KDATA_BASE_ADDR + 0x0033)
 461 #define KDATA_I2S_INT_METER             (KDATA_BASE_ADDR + 0x0034)
 462 #define KDATA_I2S_ACTIVE                (KDATA_BASE_ADDR + 0x0035)
 463
 464 #define KDATA_TIMER_COUNT_RELOAD        (KDATA_BASE_ADDR + 0x0036)
 465 #define KDATA_TIMER_COUNT_CURRENT       (KDATA_BASE_ADDR + 0x0037)
 466
 467 #define KDATA_HALT_SYNCH_CLIENT         (KDATA_BASE_ADDR + 0x0038)
 468 #define KDATA_HALT_SYNCH_DMA            (KDATA_BASE_ADDR + 0x0039)
 469 #define KDATA_HALT_ACKNOWLEDGE          (KDATA_BASE_ADDR + 0x003A)
 470
 471 #define KDATA_ADC1_XFER0                (KDATA_BASE_ADDR + 0x003B)
 472 #define KDATA_ADC1_XFER_ENDMARK         (KDATA_BASE_ADDR + 0x003C)
 473 #define KDATA_ADC1_LEFT_VOLUME                  (KDATA_BASE_ADDR + 0x003D)
 474 #define KDATA_ADC1_RIGHT_VOLUME                 (KDATA_BASE_ADDR + 0x003E)
 475 #define KDATA_ADC1_LEFT_SUR_VOL                 (KDATA_BASE_ADDR + 0x003F)
 476 #define KDATA_ADC1_RIGHT_SUR_VOL                (KDATA_BASE_ADDR + 0x0040)
 477
 478 #define KDATA_ADC2_XFER0                (KDATA_BASE_ADDR + 0x0041)
 479 #define KDATA_ADC2_XFER_ENDMARK         (KDATA_BASE_ADDR + 0x0042)
 480 #define KDATA_ADC2_LEFT_VOLUME                  (KDATA_BASE_ADDR + 0x0043)
 481 #define KDATA_ADC2_RIGHT_VOLUME                 (KDATA_BASE_ADDR + 0x0044)
 482 #define KDATA_ADC2_LEFT_SUR_VOL                 (KDATA_BASE_ADDR + 0x0045)
 483 #define KDATA_ADC2_RIGHT_SUR_VOL                (KDATA_BASE_ADDR + 0x0046)
 484
 485 #define KDATA_CD_XFER0                                  (KDATA_BASE_ADDR + 0x0047)
 486 #define KDATA_CD_XFER_ENDMARK                   (KDATA_BASE_ADDR + 0x0048)
 487 #define KDATA_CD_LEFT_VOLUME                    (KDATA_BASE_ADDR + 0x0049)
 488 #define KDATA_CD_RIGHT_VOLUME                   (KDATA_BASE_ADDR + 0x004A)
 489 #define KDATA_CD_LEFT_SUR_VOL                   (KDATA_BASE_ADDR + 0x004B)
 490 #define KDATA_CD_RIGHT_SUR_VOL                  (KDATA_BASE_ADDR + 0x004C)
 491
 492 #define KDATA_MIC_XFER0                                 (KDATA_BASE_ADDR + 0x004D)
 493 #define KDATA_MIC_XFER_ENDMARK                  (KDATA_BASE_ADDR + 0x004E)
 494 #define KDATA_MIC_VOLUME                                (KDATA_BASE_ADDR + 0x004F)
 495 #define KDATA_MIC_SUR_VOL                               (KDATA_BASE_ADDR + 0x0050)
 496
 497 #define KDATA_I2S_XFER0                 (KDATA_BASE_ADDR + 0x0051)
 498 #define KDATA_I2S_XFER_ENDMARK          (KDATA_BASE_ADDR + 0x0052)
 499
 500 #define KDATA_CHI_XFER0                 (KDATA_BASE_ADDR + 0x0053)
 501 #define KDATA_CHI_XFER_ENDMARK          (KDATA_BASE_ADDR + 0x0054)
 502
 503 #define KDATA_SPDIF_XFER                (KDATA_BASE_ADDR + 0x0055)
 504 #define KDATA_SPDIF_CURRENT_FRAME       (KDATA_BASE_ADDR + 0x0056)
 505 #define KDATA_SPDIF_FRAME0              (KDATA_BASE_ADDR + 0x0057)
 506 #define KDATA_SPDIF_FRAME1              (KDATA_BASE_ADDR + 0x0058)
 507 #define KDATA_SPDIF_FRAME2              (KDATA_BASE_ADDR + 0x0059)
 508
 509 #define KDATA_SPDIF_REQUEST             (KDATA_BASE_ADDR + 0x005A)
 510 #define KDATA_SPDIF_TEMP                (KDATA_BASE_ADDR + 0x005B)
 511
 512 #define KDATA_SPDIFIN_XFER0             (KDATA_BASE_ADDR + 0x005C)
 513 #define KDATA_SPDIFIN_XFER_ENDMARK      (KDATA_BASE_ADDR + 0x005D)
 514 #define KDATA_SPDIFIN_INT_METER         (KDATA_BASE_ADDR + 0x005E)
 515
 516 #define KDATA_DSP_RESET_COUNT           (KDATA_BASE_ADDR + 0x005F)
 517 #define KDATA_DEBUG_OUTPUT              (KDATA_BASE_ADDR + 0x0060)
 518
 519 #define KDATA_KERNEL_ISR_LIST           (KDATA_BASE_ADDR + 0x0061)
 520
 521 #define KDATA_KERNEL_ISR_CBSR1          (KDATA_BASE_ADDR + 0x0062)
 522 #define KDATA_KERNEL_ISR_CBER1          (KDATA_BASE_ADDR + 0x0063)
 523 #define KDATA_KERNEL_ISR_CBCR           (KDATA_BASE_ADDR + 0x0064)
 524 #define KDATA_KERNEL_ISR_AR0            (KDATA_BASE_ADDR + 0x0065)
 525 #define KDATA_KERNEL_ISR_AR1            (KDATA_BASE_ADDR + 0x0066)
 526 #define KDATA_KERNEL_ISR_AR2            (KDATA_BASE_ADDR + 0x0067)
 527 #define KDATA_KERNEL_ISR_AR3            (KDATA_BASE_ADDR + 0x0068)
 528 #define KDATA_KERNEL_ISR_AR4            (KDATA_BASE_ADDR + 0x0069)
 529 #define KDATA_KERNEL_ISR_AR5            (KDATA_BASE_ADDR + 0x006A)
 530 #define KDATA_KERNEL_ISR_BRCR           (KDATA_BASE_ADDR + 0x006B)
 531 #define KDATA_KERNEL_ISR_PASR           (KDATA_BASE_ADDR + 0x006C)
 532 #define KDATA_KERNEL_ISR_PAER           (KDATA_BASE_ADDR + 0x006D)
 533
 534 #define KDATA_CLIENT_SCRATCH0           (KDATA_BASE_ADDR + 0x006E)
 535 #define KDATA_CLIENT_SCRATCH1           (KDATA_BASE_ADDR + 0x006F)
 536 #define KDATA_KERNEL_SCRATCH            (KDATA_BASE_ADDR + 0x0070)
 537 #define KDATA_KERNEL_ISR_SCRATCH        (KDATA_BASE_ADDR + 0x0071)
 538
 539 #define KDATA_OUEUE_LEFT                (KDATA_BASE_ADDR + 0x0072)
 540 #define KDATA_QUEUE_RIGHT               (KDATA_BASE_ADDR + 0x0073)
 541
 542 #define KDATA_ADC1_REQUEST              (KDATA_BASE_ADDR + 0x0074)
 543 #define KDATA_ADC2_REQUEST              (KDATA_BASE_ADDR + 0x0075)
 544 #define KDATA_CD_REQUEST                                (KDATA_BASE_ADDR + 0x0076)
 545 #define KDATA_MIC_REQUEST                               (KDATA_BASE_ADDR + 0x0077)
 546
 547 #define KDATA_ADC1_MIXER_REQUEST        (KDATA_BASE_ADDR + 0x0078)
 548 #define KDATA_ADC2_MIXER_REQUEST        (KDATA_BASE_ADDR + 0x0079)
 549 #define KDATA_CD_MIXER_REQUEST                  (KDATA_BASE_ADDR + 0x007A)
 550 #define KDATA_MIC_MIXER_REQUEST                 (KDATA_BASE_ADDR + 0x007B)
 551 #define KDATA_MIC_SYNC_COUNTER                  (KDATA_BASE_ADDR + 0x007C)
 552
 553 /*
 554  * second 'segment' (?) reserved for mixer
 555  * buffers..
 556  */
 557
 558 #define KDATA_MIXER_WORD0               (KDATA_BASE_ADDR2 + 0x0000)
 559 #define KDATA_MIXER_WORD1               (KDATA_BASE_ADDR2 + 0x0001)
 560 #define KDATA_MIXER_WORD2               (KDATA_BASE_ADDR2 + 0x0002)
 561 #define KDATA_MIXER_WORD3               (KDATA_BASE_ADDR2 + 0x0003)
 562 #define KDATA_MIXER_WORD4               (KDATA_BASE_ADDR2 + 0x0004)
 563 #define KDATA_MIXER_WORD5               (KDATA_BASE_ADDR2 + 0x0005)
 564 #define KDATA_MIXER_WORD6               (KDATA_BASE_ADDR2 + 0x0006)
 565 #define KDATA_MIXER_WORD7               (KDATA_BASE_ADDR2 + 0x0007)
 566 #define KDATA_MIXER_WORD8               (KDATA_BASE_ADDR2 + 0x0008)
 567 #define KDATA_MIXER_WORD9               (KDATA_BASE_ADDR2 + 0x0009)
 568 #define KDATA_MIXER_WORDA               (KDATA_BASE_ADDR2 + 0x000A)
 569 #define KDATA_MIXER_WORDB               (KDATA_BASE_ADDR2 + 0x000B)
 570 #define KDATA_MIXER_WORDC               (KDATA_BASE_ADDR2 + 0x000C)
 571 #define KDATA_MIXER_WORDD               (KDATA_BASE_ADDR2 + 0x000D)
 572 #define KDATA_MIXER_WORDE               (KDATA_BASE_ADDR2 + 0x000E)
 573 #define KDATA_MIXER_WORDF               (KDATA_BASE_ADDR2 + 0x000F)
 574
 575 #define KDATA_MIXER_XFER0               (KDATA_BASE_ADDR2 + 0x0010)
 576 #define KDATA_MIXER_XFER1               (KDATA_BASE_ADDR2 + 0x0011)
 577 #define KDATA_MIXER_XFER2               (KDATA_BASE_ADDR2 + 0x0012)
 578 #define KDATA_MIXER_XFER3               (KDATA_BASE_ADDR2 + 0x0013)
 579 #define KDATA_MIXER_XFER4               (KDATA_BASE_ADDR2 + 0x0014)
 580 #define KDATA_MIXER_XFER5               (KDATA_BASE_ADDR2 + 0x0015)
 581 #define KDATA_MIXER_XFER6               (KDATA_BASE_ADDR2 + 0x0016)
 582 #define KDATA_MIXER_XFER7               (KDATA_BASE_ADDR2 + 0x0017)
 583 #define KDATA_MIXER_XFER8               (KDATA_BASE_ADDR2 + 0x0018)
 584 #define KDATA_MIXER_XFER9               (KDATA_BASE_ADDR2 + 0x0019)
 585 #define KDATA_MIXER_XFER_ENDMARK        (KDATA_BASE_ADDR2 + 0x001A)
 586
 587 #define KDATA_MIXER_TASK_NUMBER         (KDATA_BASE_ADDR2 + 0x001B)
 588 #define KDATA_CURRENT_MIXER             (KDATA_BASE_ADDR2 + 0x001C)
 589 #define KDATA_MIXER_ACTIVE              (KDATA_BASE_ADDR2 + 0x001D)
 590 #define KDATA_MIXER_BANK_STATUS         (KDATA_BASE_ADDR2 + 0x001E)
 591 #define KDATA_DAC_LEFT_VOLUME           (KDATA_BASE_ADDR2 + 0x001F)
 592 #define KDATA_DAC_RIGHT_VOLUME          (KDATA_BASE_ADDR2 + 0x0020)
 593
 594 #define MAX_INSTANCE_MINISRC            (KDATA_INSTANCE_MINISRC_ENDMARK - KDATA_INSTANCE0_MINISRC)
 595 #define MAX_VIRTUAL_DMA_CHANNELS        (KDATA_DMA_XFER_ENDMARK - KDATA_DMA_XFER0)
 596 #define MAX_VIRTUAL_MIXER_CHANNELS      (KDATA_MIXER_XFER_ENDMARK - KDATA_MIXER_XFER0)
 597 #define MAX_VIRTUAL_ADC1_CHANNELS       (KDATA_ADC1_XFER_ENDMARK - KDATA_ADC1_XFER0)
 598
 599 /*
 600  * client data area offsets
 601  */
 602 #define CDATA_INSTANCE_READY            0x00
 603
 604 #define CDATA_HOST_SRC_ADDRL            0x01
 605 #define CDATA_HOST_SRC_ADDRH            0x02
 606 #define CDATA_HOST_SRC_END_PLUS_1L      0x03
 607 #define CDATA_HOST_SRC_END_PLUS_1H      0x04
 608 #define CDATA_HOST_SRC_CURRENTL         0x05
 609 #define CDATA_HOST_SRC_CURRENTH         0x06
 610
 611 #define CDATA_IN_BUF_CONNECT            0x07
 612 #define CDATA_OUT_BUF_CONNECT           0x08
 613
 614 #define CDATA_IN_BUF_BEGIN              0x09
 615 #define CDATA_IN_BUF_END_PLUS_1         0x0A
 616 #define CDATA_IN_BUF_HEAD               0x0B
 617 #define CDATA_IN_BUF_TAIL               0x0C
 618 #define CDATA_OUT_BUF_BEGIN             0x0D
 619 #define CDATA_OUT_BUF_END_PLUS_1        0x0E
 620 #define CDATA_OUT_BUF_HEAD              0x0F
 621 #define CDATA_OUT_BUF_TAIL              0x10
 622
 623 #define CDATA_DMA_CONTROL               0x11
 624 #define CDATA_RESERVED                  0x12
 625
 626 #define CDATA_FREQUENCY                 0x13
 627 #define CDATA_LEFT_VOLUME               0x14
 628 #define CDATA_RIGHT_VOLUME              0x15
 629 #define CDATA_LEFT_SUR_VOL              0x16
 630 #define CDATA_RIGHT_SUR_VOL             0x17
 631
 632 #define CDATA_HEADER_LEN                0x18
 633
 634 #define SRC3_DIRECTION_OFFSET           CDATA_HEADER_LEN
 635 #define SRC3_MODE_OFFSET                (CDATA_HEADER_LEN + 1)
 636 #define SRC3_WORD_LENGTH_OFFSET         (CDATA_HEADER_LEN + 2)
 637 #define SRC3_PARAMETER_OFFSET           (CDATA_HEADER_LEN + 3)
 638 #define SRC3_COEFF_ADDR_OFFSET          (CDATA_HEADER_LEN + 8)
 639 #define SRC3_FILTAP_ADDR_OFFSET         (CDATA_HEADER_LEN + 10)
 640 #define SRC3_TEMP_INBUF_ADDR_OFFSET     (CDATA_HEADER_LEN + 16)
 641 #define SRC3_TEMP_OUTBUF_ADDR_OFFSET    (CDATA_HEADER_LEN + 17)
 642
 643 #define MINISRC_IN_BUFFER_SIZE   ( 0x50 * 2 )
 644 #define MINISRC_OUT_BUFFER_SIZE  ( 0x50 * 2 * 2)
 645 #define MINISRC_TMP_BUFFER_SIZE  ( 112 + ( MINISRC_BIQUAD_STAGE * 3 + 4 ) * 2 * 2 )
 646 #define MINISRC_BIQUAD_STAGE    2
 647 #define MINISRC_COEF_LOC          0x175
 648
 649 #define DMACONTROL_BLOCK_MASK           0x000F
 650 #define  DMAC_BLOCK0_SELECTOR           0x0000
 651 #define  DMAC_BLOCK1_SELECTOR           0x0001
 652 #define  DMAC_BLOCK2_SELECTOR           0x0002
 653 #define  DMAC_BLOCK3_SELECTOR           0x0003
 654 #define  DMAC_BLOCK4_SELECTOR           0x0004
 655 #define  DMAC_BLOCK5_SELECTOR           0x0005
 656 #define  DMAC_BLOCK6_SELECTOR           0x0006
 657 #define  DMAC_BLOCK7_SELECTOR           0x0007
 658 #define  DMAC_BLOCK8_SELECTOR           0x0008
 659 #define  DMAC_BLOCK9_SELECTOR           0x0009
 660 #define  DMAC_BLOCKA_SELECTOR           0x000A
 661 #define  DMAC_BLOCKB_SELECTOR           0x000B
 662 #define  DMAC_BLOCKC_SELECTOR           0x000C
 663 #define  DMAC_BLOCKD_SELECTOR           0x000D
 664 #define  DMAC_BLOCKE_SELECTOR           0x000E
 665 #define  DMAC_BLOCKF_SELECTOR           0x000F
 666 #define DMACONTROL_PAGE_MASK            0x00F0
 667 #define  DMAC_PAGE0_SELECTOR            0x0030
 668 #define  DMAC_PAGE1_SELECTOR            0x0020
 669 #define  DMAC_PAGE2_SELECTOR            0x0010
 670 #define  DMAC_PAGE3_SELECTOR            0x0000
 671 #define DMACONTROL_AUTOREPEAT           0x1000
 672 #define DMACONTROL_STOPPED              0x2000
 673 #define DMACONTROL_DIRECTION            0x0100
 674
 675 /*
 676  * an arbitrary volume we set the internal
 677  * volume settings to so that the ac97 volume
 678  * range is a little less insane.  0x7fff is
 679  * max.
 680  */
 681 #define ARB_VOLUME ( 0x6800 )
 682
 683 /*
 684  */
 685
 686 struct m3_list {
 687         int curlen;
 688         int mem_addr;
 689         int max;
 690 };
 691
 692 struct m3_dma {
 693
 694         int number;
 695         struct snd_pcm_substream *substream;
 696
 697         struct assp_instance {
 698                 unsigned short code, data;
 699         } inst;
 700
 701         int running;
 702         int opened;
 703
 704         unsigned long buffer_addr;
 705         int dma_size;
 706         int period_size;
 707         unsigned int hwptr;
 708         int count;
 709
 710         int index[3];
 711         struct m3_list *index_list[3];
 712
 713         int in_lists;
 714
 715         struct list_head list;
 716
 717 };
 718
 719 struct snd_m3 {
 720
 721         struct snd_card *card;
 722
 723         unsigned long iobase;
 724
 725         int irq;
 726         unsigned int allegro_flag : 1;
 727
 728         struct snd_ac97 *ac97;
 729
 730         struct snd_pcm *pcm;
 731
 732         struct pci_dev *pci;
 733
 734         int dacs_active;
 735         int timer_users;
 736
 737         struct m3_list  msrc_list;
 738         struct m3_list  mixer_list;
 739         struct m3_list  adc1_list;
 740         struct m3_list  dma_list;
 741
 742         /* for storing reset state..*/
 743         u8 reset_state;
 744
 745         int external_amp;
 746         int amp_gpio;   /* gpio pin #  for external amp, -1 = default */
 747         unsigned int hv_config;         /* hardware-volume config bits */
 748         unsigned irda_workaround :1;    /* avoid to touch 0x10 on GPIO_DIRECTION
 749                                            (e.g. for IrDA on Dell Inspirons) */
 750         unsigned is_omnibook :1;        /* Do HP OmniBook GPIO magic? */
 751
 752         /* midi */
 753         struct snd_rawmidi *rmidi;
 754
 755         /* pcm streams */
 756         int num_substreams;
 757         struct m3_dma *substreams;
 758
 759         spinlock_t reg_lock;
 760
 761 #ifdef CONFIG_SND_MAESTRO3_INPUT
 762         struct input_dev *input_dev;
 763         char phys[64];                  /* physical device path */
 764 #else
 765         struct snd_kcontrol *master_switch;
 766         struct snd_kcontrol *master_volume;
 767 #endif
 768         struct work_struct hwvol_work;
 769
 770         unsigned int in_suspend;
 771
 772 #ifdef CONFIG_PM_SLEEP
 773         u16 *suspend_mem;
 774 #endif
 775
 776         const struct firmware *assp_kernel_image;
 777         const struct firmware *assp_minisrc_image;
 778 };
 779
 780 /*
 781  * pci ids
 782  */
 783 static const struct pci_device_id snd_m3_ids[] = {
 784         {PCI_VENDOR_ID_ESS, PCI_DEVICE_ID_ESS_ALLEGRO_1, PCI_ANY_ID, PCI_ANY_ID,
 785          PCI_CLASS_MULTIMEDIA_AUDIO << 8, 0xffff00, 0},
 786         {PCI_VENDOR_ID_ESS, PCI_DEVICE_ID_ESS_ALLEGRO, PCI_ANY_ID, PCI_ANY_ID,
 787          PCI_CLASS_MULTIMEDIA_AUDIO << 8, 0xffff00, 0},
 788         {PCI_VENDOR_ID_ESS, PCI_DEVICE_ID_ESS_CANYON3D_2LE, PCI_ANY_ID, PCI_ANY_ID,
 789          PCI_CLASS_MULTIMEDIA_AUDIO << 8, 0xffff00, 0},
 790         {PCI_VENDOR_ID_ESS, PCI_DEVICE_ID_ESS_CANYON3D_2, PCI_ANY_ID, PCI_ANY_ID,
 791          PCI_CLASS_MULTIMEDIA_AUDIO << 8, 0xffff00, 0},
 792         {PCI_VENDOR_ID_ESS, PCI_DEVICE_ID_ESS_MAESTRO3, PCI_ANY_ID, PCI_ANY_ID,
 793          PCI_CLASS_MULTIMEDIA_AUDIO << 8, 0xffff00, 0},
 794         {PCI_VENDOR_ID_ESS, PCI_DEVICE_ID_ESS_MAESTRO3_1, PCI_ANY_ID, PCI_ANY_ID,
 795          PCI_CLASS_MULTIMEDIA_AUDIO << 8, 0xffff00, 0},
 796         {PCI_VENDOR_ID_ESS, PCI_DEVICE_ID_ESS_MAESTRO3_HW, PCI_ANY_ID, PCI_ANY_ID,
 797          PCI_CLASS_MULTIMEDIA_AUDIO << 8, 0xffff00, 0},
 798         {PCI_VENDOR_ID_ESS, PCI_DEVICE_ID_ESS_MAESTRO3_2, PCI_ANY_ID, PCI_ANY_ID,
 799          PCI_CLASS_MULTIMEDIA_AUDIO << 8, 0xffff00, 0},
 800         {0,},
 801 };
 802
 803 MODULE_DEVICE_TABLE(pci, snd_m3_ids);
 804
 805 static const struct snd_pci_quirk m3_amp_quirk_list[] = {
 806         SND_PCI_QUIRK(0x0E11, 0x0094, "Compaq Evo N600c", 0x0c),
 807         SND_PCI_QUIRK(0x10f7, 0x833e, "Panasonic CF-28", 0x0d),
 808         SND_PCI_QUIRK(0x10f7, 0x833d, "Panasonic CF-72", 0x0d),
 809         SND_PCI_QUIRK(0x1033, 0x80f1, "NEC LM800J/7", 0x03),
 810         SND_PCI_QUIRK(0x1509, 0x1740, "LEGEND ZhaoYang 3100CF", 0x03),
 811         { } /* END */
 812 };
 813
 814 static const struct snd_pci_quirk m3_irda_quirk_list[] = {
 815         SND_PCI_QUIRK(0x1028, 0x00b0, "Dell Inspiron 4000", 1),
 816         SND_PCI_QUIRK(0x1028, 0x00a4, "Dell Inspiron 8000", 1),
 817         SND_PCI_QUIRK(0x1028, 0x00e6, "Dell Inspiron 8100", 1),
 818         { } /* END */
 819 };
 820
 821 /* hardware volume quirks */
 822 static const struct snd_pci_quirk m3_hv_quirk_list[] = {
 823         /* Allegro chips */
 824         SND_PCI_QUIRK(0x0E11, 0x002E, NULL, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD),
 825         SND_PCI_QUIRK(0x0E11, 0x0094, NULL, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD),
 826         SND_PCI_QUIRK(0x0E11, 0xB112, NULL, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD),
 827         SND_PCI_QUIRK(0x0E11, 0xB114, NULL, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD),
 828         SND_PCI_QUIRK(0x103C, 0x0012, NULL, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD),
 829         SND_PCI_QUIRK(0x103C, 0x0018, NULL, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD),
 830         SND_PCI_QUIRK(0x103C, 0x001C, NULL, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD),
 831         SND_PCI_QUIRK(0x103C, 0x001D, NULL, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD),
 832         SND_PCI_QUIRK(0x103C, 0x001E, NULL, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD),
 833         SND_PCI_QUIRK(0x107B, 0x3350, NULL, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD),
 834         SND_PCI_QUIRK(0x10F7, 0x8338, NULL, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD),
 835         SND_PCI_QUIRK(0x10F7, 0x833C, NULL, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD),
 836         SND_PCI_QUIRK(0x10F7, 0x833D, NULL, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD),
 837         SND_PCI_QUIRK(0x10F7, 0x833E, NULL, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD),
 838         SND_PCI_QUIRK(0x10F7, 0x833F, NULL, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD),
 839         SND_PCI_QUIRK(0x13BD, 0x1018, NULL, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD),
 840         SND_PCI_QUIRK(0x13BD, 0x1019, NULL, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD),
 841         SND_PCI_QUIRK(0x13BD, 0x101A, NULL, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD),
 842         SND_PCI_QUIRK(0x14FF, 0x0F03, NULL, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD),
 843         SND_PCI_QUIRK(0x14FF, 0x0F04, NULL, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD),
 844         SND_PCI_QUIRK(0x14FF, 0x0F05, NULL, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD),
 845         SND_PCI_QUIRK(0x156D, 0xB400, NULL, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD),
 846         SND_PCI_QUIRK(0x156D, 0xB795, NULL, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD),
 847         SND_PCI_QUIRK(0x156D, 0xB797, NULL, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD),
 848         SND_PCI_QUIRK(0x156D, 0xC700, NULL, HV_CTRL_ENABLE | HV_BUTTON_FROM_GD),
 849         SND_PCI_QUIRK(0x1033, 0x80F1, NULL,
 850                       HV_CTRL_ENABLE | HV_BUTTON_FROM_GD | REDUCED_DEBOUNCE),
 851         SND_PCI_QUIRK(0x103C, 0x001A, NULL, /* HP OmniBook 6100 */
 852                       HV_CTRL_ENABLE | HV_BUTTON_FROM_GD | REDUCED_DEBOUNCE),
 853         SND_PCI_QUIRK(0x107B, 0x340A, NULL,
 854                       HV_CTRL_ENABLE | HV_BUTTON_FROM_GD | REDUCED_DEBOUNCE),
 855         SND_PCI_QUIRK(0x107B, 0x3450, NULL,
 856                       HV_CTRL_ENABLE | HV_BUTTON_FROM_GD | REDUCED_DEBOUNCE),
 857         SND_PCI_QUIRK(0x109F, 0x3134, NULL,
 858                       HV_CTRL_ENABLE | HV_BUTTON_FROM_GD | REDUCED_DEBOUNCE),
 859         SND_PCI_QUIRK(0x109F, 0x3161, NULL,
 860                       HV_CTRL_ENABLE | HV_BUTTON_FROM_GD | REDUCED_DEBOUNCE),
 861         SND_PCI_QUIRK(0x144D, 0x3280, NULL,
 862                       HV_CTRL_ENABLE | HV_BUTTON_FROM_GD | REDUCED_DEBOUNCE),
 863         SND_PCI_QUIRK(0x144D, 0x3281, NULL,
 864                       HV_CTRL_ENABLE | HV_BUTTON_FROM_GD | REDUCED_DEBOUNCE),
 865         SND_PCI_QUIRK(0x144D, 0xC002, NULL,
 866                       HV_CTRL_ENABLE | HV_BUTTON_FROM_GD | REDUCED_DEBOUNCE),
 867         SND_PCI_QUIRK(0x144D, 0xC003, NULL,
 868                       HV_CTRL_ENABLE | HV_BUTTON_FROM_GD | REDUCED_DEBOUNCE),
 869         SND_PCI_QUIRK(0x1509, 0x1740, NULL,
 870                       HV_CTRL_ENABLE | HV_BUTTON_FROM_GD | REDUCED_DEBOUNCE),
 871         SND_PCI_QUIRK(0x1610, 0x0010, NULL,
 872                       HV_CTRL_ENABLE | HV_BUTTON_FROM_GD | REDUCED_DEBOUNCE),
 873         SND_PCI_QUIRK(0x1042, 0x1042, NULL, HV_CTRL_ENABLE),
 874         SND_PCI_QUIRK(0x107B, 0x9500, NULL, HV_CTRL_ENABLE),
 875         SND_PCI_QUIRK(0x14FF, 0x0F06, NULL, HV_CTRL_ENABLE),
 876         SND_PCI_QUIRK(0x1558, 0x8586, NULL, HV_CTRL_ENABLE),
 877         SND_PCI_QUIRK(0x161F, 0x2011, NULL, HV_CTRL_ENABLE),
 878         /* Maestro3 chips */
 879         SND_PCI_QUIRK(0x103C, 0x000E, NULL, HV_CTRL_ENABLE),
 880         SND_PCI_QUIRK(0x103C, 0x0010, NULL, HV_CTRL_ENABLE),
 881         SND_PCI_QUIRK(0x103C, 0x0011, NULL, HV_CTRL_ENABLE),
 882         SND_PCI_QUIRK(0x103C, 0x001B, NULL, HV_CTRL_ENABLE),
 883         SND_PCI_QUIRK(0x104D, 0x80A6, NULL, HV_CTRL_ENABLE),
 884         SND_PCI_QUIRK(0x104D, 0x80AA, NULL, HV_CTRL_ENABLE),
 885         SND_PCI_QUIRK(0x107B, 0x5300, NULL, HV_CTRL_ENABLE),
 886         SND_PCI_QUIRK(0x110A, 0x1998, NULL, HV_CTRL_ENABLE),
 887         SND_PCI_QUIRK(0x13BD, 0x1015, NULL, HV_CTRL_ENABLE),
 888         SND_PCI_QUIRK(0x13BD, 0x101C, NULL, HV_CTRL_ENABLE),
 889         SND_PCI_QUIRK(0x13BD, 0x1802, NULL, HV_CTRL_ENABLE),
 890         SND_PCI_QUIRK(0x1599, 0x0715, NULL, HV_CTRL_ENABLE),
 891         SND_PCI_QUIRK(0x5643, 0x5643, NULL, HV_CTRL_ENABLE),
 892         SND_PCI_QUIRK(0x144D, 0x3260, NULL, HV_CTRL_ENABLE | REDUCED_DEBOUNCE),
 893         SND_PCI_QUIRK(0x144D, 0x3261, NULL, HV_CTRL_ENABLE | REDUCED_DEBOUNCE),
 894         SND_PCI_QUIRK(0x144D, 0xC000, NULL, HV_CTRL_ENABLE | REDUCED_DEBOUNCE),
 895         SND_PCI_QUIRK(0x144D, 0xC001, NULL, HV_CTRL_ENABLE | REDUCED_DEBOUNCE),
 896         { } /* END */
 897 };
 898
 899 /* HP Omnibook quirks */
 900 static const struct snd_pci_quirk m3_omnibook_quirk_list[] = {
 901         SND_PCI_QUIRK_ID(0x103c, 0x0010), /* HP OmniBook 6000 */
 902         SND_PCI_QUIRK_ID(0x103c, 0x0011), /* HP OmniBook 500 */
 903         { } /* END */
 904 };
 905
 906 /*
 907  * lowlevel functions
 908  */
 909
 910 static inline void snd_m3_outw(struct snd_m3 *chip, u16 value, unsigned long reg)
 911 {
 912         outw(value, chip->iobase + reg);
 913 }
 914
 915 static inline u16 snd_m3_inw(struct snd_m3 *chip, unsigned long reg)
 916 {
 917         return inw(chip->iobase + reg);
 918 }
 919
 920 static inline void snd_m3_outb(struct snd_m3 *chip, u8 value, unsigned long reg)
 921 {
 922         outb(value, chip->iobase + reg);
 923 }
 924
 925 static inline u8 snd_m3_inb(struct snd_m3 *chip, unsigned long reg)
 926 {
 927         return inb(chip->iobase + reg);
 928 }
 929
 930 /*
 931  * access 16bit words to the code or data regions of the dsp's memory.
 932  * index addresses 16bit words.
 933  */
 934 static u16 snd_m3_assp_read(struct snd_m3 *chip, u16 region, u16 index)
 935 {
 936         snd_m3_outw(chip, region & MEMTYPE_MASK, DSP_PORT_MEMORY_TYPE);
 937         snd_m3_outw(chip, index, DSP_PORT_MEMORY_INDEX);
 938         return snd_m3_inw(chip, DSP_PORT_MEMORY_DATA);
 939 }
 940
 941 static void snd_m3_assp_write(struct snd_m3 *chip, u16 region, u16 index, u16 data)
 942 {
 943         snd_m3_outw(chip, region & MEMTYPE_MASK, DSP_PORT_MEMORY_TYPE);
 944         snd_m3_outw(chip, index, DSP_PORT_MEMORY_INDEX);
 945         snd_m3_outw(chip, data, DSP_PORT_MEMORY_DATA);
 946 }
 947
 948 static void snd_m3_assp_halt(struct snd_m3 *chip)
 949 {
 950         chip->reset_state = snd_m3_inb(chip, DSP_PORT_CONTROL_REG_B) & ~REGB_STOP_CLOCK;
 951         msleep(10);
 952         snd_m3_outb(chip, chip->reset_state & ~REGB_ENABLE_RESET, DSP_PORT_CONTROL_REG_B);
 953 }
 954
 955 static void snd_m3_assp_continue(struct snd_m3 *chip)
 956 {
 957         snd_m3_outb(chip, chip->reset_state | REGB_ENABLE_RESET, DSP_PORT_CONTROL_REG_B);
 958 }
 959
 960
 961 /*
 962  * This makes me sad. the maestro3 has lists
 963  * internally that must be packed.. 0 terminates,
 964  * apparently, or maybe all unused entries have
 965  * to be 0, the lists have static lengths set
 966  * by the binary code images.
 967  */
 968
 969 static int snd_m3_add_list(struct snd_m3 *chip, struct m3_list *list, u16 val)
 970 {
 971         snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
 972                           list->mem_addr + list->curlen,
 973                           val);
 974         return list->curlen++;
 975 }
 976
 977 static void snd_m3_remove_list(struct snd_m3 *chip, struct m3_list *list, int index)
 978 {
 979         u16  val;
 980         int lastindex = list->curlen - 1;
 981
 982         if (index != lastindex) {
 983                 val = snd_m3_assp_read(chip, MEMTYPE_INTERNAL_DATA,
 984                                        list->mem_addr + lastindex);
 985                 snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
 986                                   list->mem_addr + index,
 987                                   val);
 988         }
 989
 990         snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
 991                           list->mem_addr + lastindex,
 992                           0);
 993
 994         list->curlen--;
 995 }
 996
 997 static void snd_m3_inc_timer_users(struct snd_m3 *chip)
 998 {
 999         chip->timer_users++;
1000         if (chip->timer_users != 1)
1001                 return;
1002
1003         snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1004                           KDATA_TIMER_COUNT_RELOAD,
1005                           240);
1006
1007         snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1008                           KDATA_TIMER_COUNT_CURRENT,
1009                           240);
1010
1011         snd_m3_outw(chip,
1012                     snd_m3_inw(chip, HOST_INT_CTRL) | CLKRUN_GEN_ENABLE,
1013                     HOST_INT_CTRL);
1014 }
1015
1016 static void snd_m3_dec_timer_users(struct snd_m3 *chip)
1017 {
1018         chip->timer_users--;
1019         if (chip->timer_users > 0)
1020                 return;
1021
1022         snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1023                           KDATA_TIMER_COUNT_RELOAD,
1024                           0);
1025
1026         snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1027                           KDATA_TIMER_COUNT_CURRENT,
1028                           0);
1029
1030         snd_m3_outw(chip,
1031                     snd_m3_inw(chip, HOST_INT_CTRL) & ~CLKRUN_GEN_ENABLE,
1032                     HOST_INT_CTRL);
1033 }
1034
1035 /*
1036  * start/stop
1037  */
1038
1039 /* spinlock held! */
1040 static int snd_m3_pcm_start(struct snd_m3 *chip, struct m3_dma *s,
1041                             struct snd_pcm_substream *subs)
1042 {
1043         if (! s || ! subs)
1044                 return -EINVAL;
1045
1046         snd_m3_inc_timer_users(chip);
1047         switch (subs->stream) {
1048         case SNDRV_PCM_STREAM_PLAYBACK:
1049                 chip->dacs_active++;
1050                 snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1051                                   s->inst.data + CDATA_INSTANCE_READY, 1);
1052                 snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1053                                   KDATA_MIXER_TASK_NUMBER,
1054                                   chip->dacs_active);
1055                 break;
1056         case SNDRV_PCM_STREAM_CAPTURE:
1057                 snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1058                                   KDATA_ADC1_REQUEST, 1);
1059                 snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1060                                   s->inst.data + CDATA_INSTANCE_READY, 1);
1061                 break;
1062         }
1063         return 0;
1064 }
1065
1066 /* spinlock held! */
1067 static int snd_m3_pcm_stop(struct snd_m3 *chip, struct m3_dma *s,
1068                            struct snd_pcm_substream *subs)
1069 {
1070         if (! s || ! subs)
1071                 return -EINVAL;
1072
1073         snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1074                           s->inst.data + CDATA_INSTANCE_READY, 0);
1075         snd_m3_dec_timer_users(chip);
1076         switch (subs->stream) {
1077         case SNDRV_PCM_STREAM_PLAYBACK:
1078                 chip->dacs_active--;
1079                 snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1080                                   KDATA_MIXER_TASK_NUMBER,
1081                                   chip->dacs_active);
1082                 break;
1083         case SNDRV_PCM_STREAM_CAPTURE:
1084                 snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1085                                   KDATA_ADC1_REQUEST, 0);
1086                 break;
1087         }
1088         return 0;
1089 }
1090
1091 static int
1092 snd_m3_pcm_trigger(struct snd_pcm_substream *subs, int cmd)
1093 {
1094         struct snd_m3 *chip = snd_pcm_substream_chip(subs);
1095         struct m3_dma *s = subs->runtime->private_data;
1096         int err = -EINVAL;
1097
1098         if (snd_BUG_ON(!s))
1099                 return -ENXIO;
1100
1101         spin_lock(&chip->reg_lock);
1102         switch (cmd) {
1103         case SNDRV_PCM_TRIGGER_START:
1104         case SNDRV_PCM_TRIGGER_RESUME:
1105                 if (s->running)
1106                         err = -EBUSY;
1107                 else {
1108                         s->running = 1;
1109                         err = snd_m3_pcm_start(chip, s, subs);
1110                 }
1111                 break;
1112         case SNDRV_PCM_TRIGGER_STOP:
1113         case SNDRV_PCM_TRIGGER_SUSPEND:
1114                 if (! s->running)
1115                         err = 0; /* should return error? */
1116                 else {
1117                         s->running = 0;
1118                         err = snd_m3_pcm_stop(chip, s, subs);
1119                 }
1120                 break;
1121         }
1122         spin_unlock(&chip->reg_lock);
1123         return err;
1124 }
1125
1126 /*
1127  * setup
1128  */
1129 static void
1130 snd_m3_pcm_setup1(struct snd_m3 *chip, struct m3_dma *s, struct snd_pcm_substream *subs)
1131 {
1132         int dsp_in_size, dsp_out_size, dsp_in_buffer, dsp_out_buffer;
1133         struct snd_pcm_runtime *runtime = subs->runtime;
1134
1135         if (subs->stream == SNDRV_PCM_STREAM_PLAYBACK) {
1136                 dsp_in_size = MINISRC_IN_BUFFER_SIZE - (0x20 * 2);
1137                 dsp_out_size = MINISRC_OUT_BUFFER_SIZE - (0x20 * 2);
1138         } else {
1139                 dsp_in_size = MINISRC_IN_BUFFER_SIZE - (0x10 * 2);
1140                 dsp_out_size = MINISRC_OUT_BUFFER_SIZE - (0x10 * 2);
1141         }
1142         dsp_in_buffer = s->inst.data + (MINISRC_TMP_BUFFER_SIZE / 2);
1143         dsp_out_buffer = dsp_in_buffer + (dsp_in_size / 2) + 1;
1144
1145         s->dma_size = frames_to_bytes(runtime, runtime->buffer_size);
1146         s->period_size = frames_to_bytes(runtime, runtime->period_size);
1147         s->hwptr = 0;
1148         s->count = 0;
1149
1150 #define LO(x) ((x) & 0xffff)
1151 #define HI(x) LO((x) >> 16)
1152
1153         /* host dma buffer pointers */
1154         snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1155                           s->inst.data + CDATA_HOST_SRC_ADDRL,
1156                           LO(s->buffer_addr));
1157
1158         snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1159                           s->inst.data + CDATA_HOST_SRC_ADDRH,
1160                           HI(s->buffer_addr));
1161
1162         snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1163                           s->inst.data + CDATA_HOST_SRC_END_PLUS_1L,
1164                           LO(s->buffer_addr + s->dma_size));
1165
1166         snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1167                           s->inst.data + CDATA_HOST_SRC_END_PLUS_1H,
1168                           HI(s->buffer_addr + s->dma_size));
1169
1170         snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1171                           s->inst.data + CDATA_HOST_SRC_CURRENTL,
1172                           LO(s->buffer_addr));
1173
1174         snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1175                           s->inst.data + CDATA_HOST_SRC_CURRENTH,
1176                           HI(s->buffer_addr));
1177 #undef LO
1178 #undef HI
1179
1180         /* dsp buffers */
1181
1182         snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1183                           s->inst.data + CDATA_IN_BUF_BEGIN,
1184                           dsp_in_buffer);
1185
1186         snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1187                           s->inst.data + CDATA_IN_BUF_END_PLUS_1,
1188                           dsp_in_buffer + (dsp_in_size / 2));
1189
1190         snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1191                           s->inst.data + CDATA_IN_BUF_HEAD,
1192                           dsp_in_buffer);
1193
1194         snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1195                           s->inst.data + CDATA_IN_BUF_TAIL,
1196                           dsp_in_buffer);
1197
1198         snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1199                           s->inst.data + CDATA_OUT_BUF_BEGIN,
1200                           dsp_out_buffer);
1201
1202         snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1203                           s->inst.data + CDATA_OUT_BUF_END_PLUS_1,
1204                           dsp_out_buffer + (dsp_out_size / 2));
1205
1206         snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1207                           s->inst.data + CDATA_OUT_BUF_HEAD,
1208                           dsp_out_buffer);
1209
1210         snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1211                           s->inst.data + CDATA_OUT_BUF_TAIL,
1212                           dsp_out_buffer);
1213 }
1214
1215 static void snd_m3_pcm_setup2(struct snd_m3 *chip, struct m3_dma *s,
1216                               struct snd_pcm_runtime *runtime)
1217 {
1218         u32 freq;
1219
1220         /*
1221          * put us in the lists if we're not already there
1222          */
1223         if (! s->in_lists) {
1224                 s->index[0] = snd_m3_add_list(chip, s->index_list[0],
1225                                               s->inst.data >> DP_SHIFT_COUNT);
1226                 s->index[1] = snd_m3_add_list(chip, s->index_list[1],
1227                                               s->inst.data >> DP_SHIFT_COUNT);
1228                 s->index[2] = snd_m3_add_list(chip, s->index_list[2],
1229                                               s->inst.data >> DP_SHIFT_COUNT);
1230                 s->in_lists = 1;
1231         }
1232
1233         /* write to 'mono' word */
1234         snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1235                           s->inst.data + SRC3_DIRECTION_OFFSET + 1,
1236                           runtime->channels == 2 ? 0 : 1);
1237         /* write to '8bit' word */
1238         snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1239                           s->inst.data + SRC3_DIRECTION_OFFSET + 2,
1240                           snd_pcm_format_width(runtime->format) == 16 ? 0 : 1);
1241
1242         /* set up dac/adc rate */
1243         freq = DIV_ROUND_CLOSEST(runtime->rate << 15, 48000);
1244         if (freq)
1245                 freq--;
1246
1247         snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1248                           s->inst.data + CDATA_FREQUENCY,
1249                           freq);
1250 }
1251
1252
1253 static const struct play_vals {
1254         u16 addr, val;
1255 } pv[] = {
1256         {CDATA_LEFT_VOLUME, ARB_VOLUME},
1257         {CDATA_RIGHT_VOLUME, ARB_VOLUME},
1258         {SRC3_DIRECTION_OFFSET, 0} ,
1259         /* +1, +2 are stereo/16 bit */
1260         {SRC3_DIRECTION_OFFSET + 3, 0x0000}, /* fraction? */
1261         {SRC3_DIRECTION_OFFSET + 4, 0}, /* first l */
1262         {SRC3_DIRECTION_OFFSET + 5, 0}, /* first r */
1263         {SRC3_DIRECTION_OFFSET + 6, 0}, /* second l */
1264         {SRC3_DIRECTION_OFFSET + 7, 0}, /* second r */
1265         {SRC3_DIRECTION_OFFSET + 8, 0}, /* delta l */
1266         {SRC3_DIRECTION_OFFSET + 9, 0}, /* delta r */
1267         {SRC3_DIRECTION_OFFSET + 10, 0x8000}, /* round */
1268         {SRC3_DIRECTION_OFFSET + 11, 0xFF00}, /* higher bute mark */
1269         {SRC3_DIRECTION_OFFSET + 13, 0}, /* temp0 */
1270         {SRC3_DIRECTION_OFFSET + 14, 0}, /* c fraction */
1271         {SRC3_DIRECTION_OFFSET + 15, 0}, /* counter */
1272         {SRC3_DIRECTION_OFFSET + 16, 8}, /* numin */
1273         {SRC3_DIRECTION_OFFSET + 17, 50*2}, /* numout */
1274         {SRC3_DIRECTION_OFFSET + 18, MINISRC_BIQUAD_STAGE - 1}, /* numstage */
1275         {SRC3_DIRECTION_OFFSET + 20, 0}, /* filtertap */
1276         {SRC3_DIRECTION_OFFSET + 21, 0} /* booster */
1277 };
1278
1279
1280 /* the mode passed should be already shifted and masked */
1281 static void
1282 snd_m3_playback_setup(struct snd_m3 *chip, struct m3_dma *s,
1283                       struct snd_pcm_substream *subs)
1284 {
1285         unsigned int i;
1286
1287         /*
1288          * some per client initializers
1289          */
1290
1291         snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1292                           s->inst.data + SRC3_DIRECTION_OFFSET + 12,
1293                           s->inst.data + 40 + 8);
1294
1295         snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1296                           s->inst.data + SRC3_DIRECTION_OFFSET + 19,
1297                           s->inst.code + MINISRC_COEF_LOC);
1298
1299         /* enable or disable low pass filter? */
1300         snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1301                           s->inst.data + SRC3_DIRECTION_OFFSET + 22,
1302                           subs->runtime->rate > 45000 ? 0xff : 0);
1303
1304         /* tell it which way dma is going? */
1305         snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1306                           s->inst.data + CDATA_DMA_CONTROL,
1307                           DMACONTROL_AUTOREPEAT + DMAC_PAGE3_SELECTOR + DMAC_BLOCKF_SELECTOR);
1308
1309         /*
1310          * set an armload of static initializers
1311          */
1312         for (i = 0; i < ARRAY_SIZE(pv); i++)
1313                 snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1314                                   s->inst.data + pv[i].addr, pv[i].val);
1315 }
1316
1317 /*
1318  *    Native record driver
1319  */
1320 static const struct rec_vals {
1321         u16 addr, val;
1322 } rv[] = {
1323         {CDATA_LEFT_VOLUME, ARB_VOLUME},
1324         {CDATA_RIGHT_VOLUME, ARB_VOLUME},
1325         {SRC3_DIRECTION_OFFSET, 1} ,
1326         /* +1, +2 are stereo/16 bit */
1327         {SRC3_DIRECTION_OFFSET + 3, 0x0000}, /* fraction? */
1328         {SRC3_DIRECTION_OFFSET + 4, 0}, /* first l */
1329         {SRC3_DIRECTION_OFFSET + 5, 0}, /* first r */
1330         {SRC3_DIRECTION_OFFSET + 6, 0}, /* second l */
1331         {SRC3_DIRECTION_OFFSET + 7, 0}, /* second r */
1332         {SRC3_DIRECTION_OFFSET + 8, 0}, /* delta l */
1333         {SRC3_DIRECTION_OFFSET + 9, 0}, /* delta r */
1334         {SRC3_DIRECTION_OFFSET + 10, 0x8000}, /* round */
1335         {SRC3_DIRECTION_OFFSET + 11, 0xFF00}, /* higher bute mark */
1336         {SRC3_DIRECTION_OFFSET + 13, 0}, /* temp0 */
1337         {SRC3_DIRECTION_OFFSET + 14, 0}, /* c fraction */
1338         {SRC3_DIRECTION_OFFSET + 15, 0}, /* counter */
1339         {SRC3_DIRECTION_OFFSET + 16, 50},/* numin */
1340         {SRC3_DIRECTION_OFFSET + 17, 8}, /* numout */
1341         {SRC3_DIRECTION_OFFSET + 18, 0}, /* numstage */
1342         {SRC3_DIRECTION_OFFSET + 19, 0}, /* coef */
1343         {SRC3_DIRECTION_OFFSET + 20, 0}, /* filtertap */
1344         {SRC3_DIRECTION_OFFSET + 21, 0}, /* booster */
1345         {SRC3_DIRECTION_OFFSET + 22, 0xff} /* skip lpf */
1346 };
1347
1348 static void
1349 snd_m3_capture_setup(struct snd_m3 *chip, struct m3_dma *s, struct snd_pcm_substream *subs)
1350 {
1351         unsigned int i;
1352
1353         /*
1354          * some per client initializers
1355          */
1356
1357         snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1358                           s->inst.data + SRC3_DIRECTION_OFFSET + 12,
1359                           s->inst.data + 40 + 8);
1360
1361         /* tell it which way dma is going? */
1362         snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1363                           s->inst.data + CDATA_DMA_CONTROL,
1364                           DMACONTROL_DIRECTION + DMACONTROL_AUTOREPEAT +
1365                           DMAC_PAGE3_SELECTOR + DMAC_BLOCKF_SELECTOR);
1366
1367         /*
1368          * set an armload of static initializers
1369          */
1370         for (i = 0; i < ARRAY_SIZE(rv); i++)
1371                 snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
1372                                   s->inst.data + rv[i].addr, rv[i].val);
1373 }
1374
1375 static int snd_m3_pcm_hw_params(struct snd_pcm_substream *substream,
1376                                 struct snd_pcm_hw_params *hw_params)
1377 {
1378         struct m3_dma *s = substream->runtime->private_data;
1379
1380         /* set buffer address */
1381         s->buffer_addr = substream->runtime->dma_addr;
1382         if (s->buffer_addr & 0x3) {
1383                 dev_err(substream->pcm->card->dev, "oh my, not aligned\n");
1384                 s->buffer_addr = s->buffer_addr & ~0x3;
1385         }
1386         return 0;
1387 }
1388
1389 static int snd_m3_pcm_hw_free(struct snd_pcm_substream *substream)
1390 {
1391         struct m3_dma *s;
1392
1393         if (substream->runtime->private_data == NULL)
1394                 return 0;
1395         s = substream->runtime->private_data;
1396         s->buffer_addr = 0;
1397         return 0;
1398 }
1399
1400 static int
1401 snd_m3_pcm_prepare(struct snd_pcm_substream *subs)
1402 {
1403         struct snd_m3 *chip = snd_pcm_substream_chip(subs);
1404         struct snd_pcm_runtime *runtime = subs->runtime;
1405         struct m3_dma *s = runtime->private_data;
1406
1407         if (snd_BUG_ON(!s))
1408                 return -ENXIO;
1409
1410         if (runtime->format != SNDRV_PCM_FORMAT_U8 &&
1411             runtime->format != SNDRV_PCM_FORMAT_S16_LE)
1412                 return -EINVAL;
1413         if (runtime->rate > 48000 ||
1414             runtime->rate < 8000)
1415                 return -EINVAL;
1416
1417         spin_lock_irq(&chip->reg_lock);
1418
1419         snd_m3_pcm_setup1(chip, s, subs);
1420
1421         if (subs->stream == SNDRV_PCM_STREAM_PLAYBACK)
1422                 snd_m3_playback_setup(chip, s, subs);
1423         else
1424                 snd_m3_capture_setup(chip, s, subs);
1425
1426         snd_m3_pcm_setup2(chip, s, runtime);
1427
1428         spin_unlock_irq(&chip->reg_lock);
1429
1430         return 0;
1431 }
1432
1433 /*
1434  * get current pointer
1435  */
1436 static unsigned int
1437 snd_m3_get_pointer(struct snd_m3 *chip, struct m3_dma *s, struct snd_pcm_substream *subs)
1438 {
1439         u16 hi = 0, lo = 0;
1440         int retry = 10;
1441         u32 addr;
1442
1443         /*
1444          * try and get a valid answer
1445          */
1446         while (retry--) {
1447                 hi =  snd_m3_assp_read(chip, MEMTYPE_INTERNAL_DATA,
1448                                        s->inst.data + CDATA_HOST_SRC_CURRENTH);
1449
1450                 lo = snd_m3_assp_read(chip, MEMTYPE_INTERNAL_DATA,
1451                                       s->inst.data + CDATA_HOST_SRC_CURRENTL);
1452
1453                 if (hi == snd_m3_assp_read(chip, MEMTYPE_INTERNAL_DATA,
1454                                            s->inst.data + CDATA_HOST_SRC_CURRENTH))
1455                         break;
1456         }
1457         addr = lo | ((u32)hi<<16);
1458         return (unsigned int)(addr - s->buffer_addr);
1459 }
1460
1461 static snd_pcm_uframes_t
1462 snd_m3_pcm_pointer(struct snd_pcm_substream *subs)
1463 {
1464         struct snd_m3 *chip = snd_pcm_substream_chip(subs);
1465         unsigned int ptr;
1466         struct m3_dma *s = subs->runtime->private_data;
1467
1468         if (snd_BUG_ON(!s))
1469                 return 0;
1470
1471         spin_lock(&chip->reg_lock);
1472         ptr = snd_m3_get_pointer(chip, s, subs);
1473         spin_unlock(&chip->reg_lock);
1474         return bytes_to_frames(subs->runtime, ptr);
1475 }
1476
1477
1478 /* update pointer */
1479 /* spinlock held! */
1480 static void snd_m3_update_ptr(struct snd_m3 *chip, struct m3_dma *s)
1481 {
1482         struct snd_pcm_substream *subs = s->substream;
1483         unsigned int hwptr;
1484         int diff;
1485
1486         if (! s->running)
1487                 return;
1488
1489         hwptr = snd_m3_get_pointer(chip, s, subs);
1490
1491         /* try to avoid expensive modulo divisions */
1492         if (hwptr >= s->dma_size)
1493                 hwptr %= s->dma_size;
1494
1495         diff = s->dma_size + hwptr - s->hwptr;
1496         if (diff >= s->dma_size)
1497                 diff %= s->dma_size;
1498
1499         s->hwptr = hwptr;
1500         s->count += diff;
1501
1502         if (s->count >= (signed)s->period_size) {
1503
1504                 if (s->count < 2 * (signed)s->period_size)
1505                         s->count -= (signed)s->period_size;
1506                 else
1507                         s->count %= s->period_size;
1508
1509                 spin_unlock(&chip->reg_lock);
1510                 snd_pcm_period_elapsed(subs);
1511                 spin_lock(&chip->reg_lock);
1512         }
1513 }
1514
1515 /* The m3's hardware volume works by incrementing / decrementing 2 counters
1516    (without wrap around) in response to volume button presses and then
1517    generating an interrupt. The pair of counters is stored in bits 1-3 and 5-7
1518    of a byte wide register. The meaning of bits 0 and 4 is unknown. */
1519 static void snd_m3_update_hw_volume(struct work_struct *work)
1520 {
1521         struct snd_m3 *chip = container_of(work, struct snd_m3, hwvol_work);
1522         int x, val;
1523
1524         /* Figure out which volume control button was pushed,
1525            based on differences from the default register
1526            values. */
1527         x = inb(chip->iobase + SHADOW_MIX_REG_VOICE) & 0xee;
1528
1529         /* Reset the volume counters to 4. Tests on the allegro integrated
1530            into a Compaq N600C laptop, have revealed that:
1531            1) Writing any value will result in the 2 counters being reset to
1532               4 so writing 0x88 is not strictly necessary
1533            2) Writing to any of the 4 involved registers will reset all 4
1534               of them (and reading them always returns the same value for all
1535               of them)
1536            It could be that a maestro deviates from this, so leave the code
1537            as is. */
1538         outb(0x88, chip->iobase + SHADOW_MIX_REG_VOICE);
1539         outb(0x88, chip->iobase + HW_VOL_COUNTER_VOICE);
1540         outb(0x88, chip->iobase + SHADOW_MIX_REG_MASTER);
1541         outb(0x88, chip->iobase + HW_VOL_COUNTER_MASTER);
1542
1543         /* Ignore spurious HV interrupts during suspend / resume, this avoids
1544            mistaking them for a mute button press. */
1545         if (chip->in_suspend)
1546                 return;
1547
1548 #ifndef CONFIG_SND_MAESTRO3_INPUT
1549         if (!chip->master_switch || !chip->master_volume)
1550                 return;
1551
1552         val = snd_ac97_read(chip->ac97, AC97_MASTER);
1553         switch (x) {
1554         case 0x88:
1555                 /* The counters have not changed, yet we've received a HV
1556                    interrupt. According to tests run by various people this
1557                    happens when pressing the mute button. */
1558                 val ^= 0x8000;
1559                 break;
1560         case 0xaa:
1561                 /* counters increased by 1 -> volume up */
1562                 if ((val & 0x7f) > 0)
1563                         val--;
1564                 if ((val & 0x7f00) > 0)
1565                         val -= 0x0100;
1566                 break;
1567         case 0x66:
1568                 /* counters decreased by 1 -> volume down */
1569                 if ((val & 0x7f) < 0x1f)
1570                         val++;
1571                 if ((val & 0x7f00) < 0x1f00)
1572                         val += 0x0100;
1573                 break;
1574         }
1575         if (snd_ac97_update(chip->ac97, AC97_MASTER, val))
1576                 snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
1577                                &chip->master_switch->id);
1578 #else
1579         if (!chip->input_dev)
1580                 return;
1581
1582         val = 0;
1583         switch (x) {
1584         case 0x88:
1585                 /* The counters have not changed, yet we've received a HV
1586                    interrupt. According to tests run by various people this
1587                    happens when pressing the mute button. */
1588                 val = KEY_MUTE;
1589                 break;
1590         case 0xaa:
1591                 /* counters increased by 1 -> volume up */
1592                 val = KEY_VOLUMEUP;
1593                 break;
1594         case 0x66:
1595                 /* counters decreased by 1 -> volume down */
1596                 val = KEY_VOLUMEDOWN;
1597                 break;
1598         }
1599
1600         if (val) {
1601                 input_report_key(chip->input_dev, val, 1);
1602                 input_sync(chip->input_dev);
1603                 input_report_key(chip->input_dev, val, 0);
1604                 input_sync(chip->input_dev);
1605         }
1606 #endif
1607 }
1608
1609 static irqreturn_t snd_m3_interrupt(int irq, void *dev_id)
1610 {
1611         struct snd_m3 *chip = dev_id;
1612         u8 status;
1613         int i;
1614
1615         status = inb(chip->iobase + HOST_INT_STATUS);
1616
1617         if (status == 0xff)
1618                 return IRQ_NONE;
1619
1620         if (status & HV_INT_PENDING)
1621                 schedule_work(&chip->hwvol_work);
1622
1623         /*
1624          * ack an assp int if its running
1625          * and has an int pending
1626          */
1627         if (status & ASSP_INT_PENDING) {
1628                 u8 ctl = inb(chip->iobase + ASSP_CONTROL_B);
1629                 if (!(ctl & STOP_ASSP_CLOCK)) {
1630                         ctl = inb(chip->iobase + ASSP_HOST_INT_STATUS);
1631                         if (ctl & DSP2HOST_REQ_TIMER) {
1632                                 outb(DSP2HOST_REQ_TIMER, chip->iobase + ASSP_HOST_INT_STATUS);
1633                                 /* update adc/dac info if it was a timer int */
1634                                 spin_lock(&chip->reg_lock);
1635                                 for (i = 0; i < chip->num_substreams; i++) {
1636                                         struct m3_dma *s = &chip->substreams[i];
1637                                         if (s->running)
1638                                                 snd_m3_update_ptr(chip, s);
1639                                 }
1640                                 spin_unlock(&chip->reg_lock);
1641                         }
1642                 }
1643         }
1644
1645 #if 0 /* TODO: not supported yet */
1646         if ((status & MPU401_INT_PENDING) && chip->rmidi)
1647                 snd_mpu401_uart_interrupt(irq, chip->rmidi->private_data, regs);
1648 #endif
1649
1650         /* ack ints */
1651         outb(status, chip->iobase + HOST_INT_STATUS);
1652
1653         return IRQ_HANDLED;
1654 }
1655
1656
1657 /*
1658  */
1659
1660 static const struct snd_pcm_hardware snd_m3_playback =
1661 {
1662         .info =                 (SNDRV_PCM_INFO_MMAP |
1663                                  SNDRV_PCM_INFO_INTERLEAVED |
1664                                  SNDRV_PCM_INFO_MMAP_VALID |
1665                                  SNDRV_PCM_INFO_BLOCK_TRANSFER |
1666                                  /*SNDRV_PCM_INFO_PAUSE |*/
1667                                  SNDRV_PCM_INFO_RESUME),
1668         .formats =              SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
1669         .rates =                SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
1670         .rate_min =             8000,
1671         .rate_max =             48000,
1672         .channels_min =         1,
1673         .channels_max =         2,
1674         .buffer_bytes_max =     (512*1024),
1675         .period_bytes_min =     64,
1676         .period_bytes_max =     (512*1024),
1677         .periods_min =          1,
1678         .periods_max =          1024,
1679 };
1680
1681 static const struct snd_pcm_hardware snd_m3_capture =
1682 {
1683         .info =                 (SNDRV_PCM_INFO_MMAP |
1684                                  SNDRV_PCM_INFO_INTERLEAVED |
1685                                  SNDRV_PCM_INFO_MMAP_VALID |
1686                                  SNDRV_PCM_INFO_BLOCK_TRANSFER |
1687                                  /*SNDRV_PCM_INFO_PAUSE |*/
1688                                  SNDRV_PCM_INFO_RESUME),
1689         .formats =              SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
1690         .rates =                SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
1691         .rate_min =             8000,
1692         .rate_max =             48000,
1693         .channels_min =         1,
1694         .channels_max =         2,
1695         .buffer_bytes_max =     (512*1024),
1696         .period_bytes_min =     64,
1697         .period_bytes_max =     (512*1024),
1698         .periods_min =          1,
1699         .periods_max =          1024,
1700 };
1701
1702
1703 /*
1704  */
1705
1706 static int
1707 snd_m3_substream_open(struct snd_m3 *chip, struct snd_pcm_substream *subs)
1708 {
1709         int i;
1710         struct m3_dma *s;
1711
1712         spin_lock_irq(&chip->reg_lock);
1713         for (i = 0; i < chip->num_substreams; i++) {
1714                 s = &chip->substreams[i];
1715                 if (! s->opened)
1716                         goto __found;
1717         }
1718         spin_unlock_irq(&chip->reg_lock);
1719         return -ENOMEM;
1720 __found:
1721         s->opened = 1;
1722         s->running = 0;
1723         spin_unlock_irq(&chip->reg_lock);
1724
1725         subs->runtime->private_data = s;
1726         s->substream = subs;
1727
1728         /* set list owners */
1729         if (subs->stream == SNDRV_PCM_STREAM_PLAYBACK) {
1730                 s->index_list[0] = &chip->mixer_list;
1731         } else
1732                 s->index_list[0] = &chip->adc1_list;
1733         s->index_list[1] = &chip->msrc_list;
1734         s->index_list[2] = &chip->dma_list;
1735
1736         return 0;
1737 }
1738
1739 static void
1740 snd_m3_substream_close(struct snd_m3 *chip, struct snd_pcm_substream *subs)
1741 {
1742         struct m3_dma *s = subs->runtime->private_data;
1743
1744         if (s == NULL)
1745                 return; /* not opened properly */
1746
1747         spin_lock_irq(&chip->reg_lock);
1748         if (s->substream && s->running)
1749                 snd_m3_pcm_stop(chip, s, s->substream); /* does this happen? */
1750         if (s->in_lists) {
1751                 snd_m3_remove_list(chip, s->index_list[0], s->index[0]);
1752                 snd_m3_remove_list(chip, s->index_list[1], s->index[1]);
1753                 snd_m3_remove_list(chip, s->index_list[2], s->index[2]);
1754                 s->in_lists = 0;
1755         }
1756         s->running = 0;
1757         s->opened = 0;
1758         spin_unlock_irq(&chip->reg_lock);
1759 }
1760
1761 static int
1762 snd_m3_playback_open(struct snd_pcm_substream *subs)
1763 {
1764         struct snd_m3 *chip = snd_pcm_substream_chip(subs);
1765         struct snd_pcm_runtime *runtime = subs->runtime;
1766         int err;
1767
1768         err = snd_m3_substream_open(chip, subs);
1769         if (err < 0)
1770                 return err;
1771
1772         runtime->hw = snd_m3_playback;
1773
1774         return 0;
1775 }
1776
1777 static int
1778 snd_m3_playback_close(struct snd_pcm_substream *subs)
1779 {
1780         struct snd_m3 *chip = snd_pcm_substream_chip(subs);
1781
1782         snd_m3_substream_close(chip, subs);
1783         return 0;
1784 }
1785
1786 static int
1787 snd_m3_capture_open(struct snd_pcm_substream *subs)
1788 {
1789         struct snd_m3 *chip = snd_pcm_substream_chip(subs);
1790         struct snd_pcm_runtime *runtime = subs->runtime;
1791         int err;
1792
1793         err = snd_m3_substream_open(chip, subs);
1794         if (err < 0)
1795                 return err;
1796
1797         runtime->hw = snd_m3_capture;
1798
1799         return 0;
1800 }
1801
1802 static int
1803 snd_m3_capture_close(struct snd_pcm_substream *subs)
1804 {
1805         struct snd_m3 *chip = snd_pcm_substream_chip(subs);
1806
1807         snd_m3_substream_close(chip, subs);
1808         return 0;
1809 }
1810
1811 /*
1812  * create pcm instance
1813  */
1814
1815 static const struct snd_pcm_ops snd_m3_playback_ops = {
1816         .open =         snd_m3_playback_open,
1817         .close =        snd_m3_playback_close,
1818         .hw_params =    snd_m3_pcm_hw_params,
1819         .hw_free =      snd_m3_pcm_hw_free,
1820         .prepare =      snd_m3_pcm_prepare,
1821         .trigger =      snd_m3_pcm_trigger,
1822         .pointer =      snd_m3_pcm_pointer,
1823 };
1824
1825 static const struct snd_pcm_ops snd_m3_capture_ops = {
1826         .open =         snd_m3_capture_open,
1827         .close =        snd_m3_capture_close,
1828         .hw_params =    snd_m3_pcm_hw_params,
1829         .hw_free =      snd_m3_pcm_hw_free,
1830         .prepare =      snd_m3_pcm_prepare,
1831         .trigger =      snd_m3_pcm_trigger,
1832         .pointer =      snd_m3_pcm_pointer,
1833 };
1834
1835 static int
1836 snd_m3_pcm(struct snd_m3 * chip, int device)
1837 {
1838         struct snd_pcm *pcm;
1839         int err;
1840
1841         err = snd_pcm_new(chip->card, chip->card->driver, device,
1842                           MAX_PLAYBACKS, MAX_CAPTURES, &pcm);
1843         if (err < 0)
1844                 return err;
1845
1846         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_m3_playback_ops);
1847         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_m3_capture_ops);
1848
1849         pcm->private_data = chip;
1850         pcm->info_flags = 0;
1851         strcpy(pcm->name, chip->card->driver);
1852         chip->pcm = pcm;
1853
1854         snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV,
1855                                        &chip->pci->dev, 64*1024, 64*1024);
1856
1857         return 0;
1858 }
1859
1860
1861 /*
1862  * ac97 interface
1863  */
1864
1865 /*
1866  * Wait for the ac97 serial bus to be free.
1867  * return nonzero if the bus is still busy.
1868  */
1869 static int snd_m3_ac97_wait(struct snd_m3 *chip)
1870 {
1871         int i = 10000;
1872
1873         do {
1874                 if (! (snd_m3_inb(chip, 0x30) & 1))
1875                         return 0;
1876                 cpu_relax();
1877         } while (i-- > 0);
1878
1879         dev_err(chip->card->dev, "ac97 serial bus busy\n");
1880         return 1;
1881 }
1882
1883 static unsigned short
1884 snd_m3_ac97_read(struct snd_ac97 *ac97, unsigned short reg)
1885 {
1886         struct snd_m3 *chip = ac97->private_data;
1887         unsigned short data = 0xffff;
1888
1889         if (snd_m3_ac97_wait(chip))
1890                 goto fail;
1891         snd_m3_outb(chip, 0x80 | (reg & 0x7f), CODEC_COMMAND);
1892         if (snd_m3_ac97_wait(chip))
1893                 goto fail;
1894         data = snd_m3_inw(chip, CODEC_DATA);
1895 fail:
1896         return data;
1897 }
1898
1899 static void
1900 snd_m3_ac97_write(struct snd_ac97 *ac97, unsigned short reg, unsigned short val)
1901 {
1902         struct snd_m3 *chip = ac97->private_data;
1903
1904         if (snd_m3_ac97_wait(chip))
1905                 return;
1906         snd_m3_outw(chip, val, CODEC_DATA);
1907         snd_m3_outb(chip, reg & 0x7f, CODEC_COMMAND);
1908         /*
1909          * Workaround for buggy ES1988 integrated AC'97 codec. It remains silent
1910          * until the MASTER volume or mute is touched (alsactl restore does not
1911          * work).
1912          */
1913         if (ac97->id == 0x45838308 && reg == AC97_MASTER) {
1914                 snd_m3_ac97_wait(chip);
1915                 snd_m3_outw(chip, val, CODEC_DATA);
1916                 snd_m3_outb(chip, reg & 0x7f, CODEC_COMMAND);
1917         }
1918 }
1919
1920
1921 static void snd_m3_remote_codec_config(struct snd_m3 *chip, int isremote)
1922 {
1923         int io = chip->iobase;
1924         u16 tmp;
1925
1926         isremote = isremote ? 1 : 0;
1927
1928         tmp = inw(io + RING_BUS_CTRL_B) & ~SECOND_CODEC_ID_MASK;
1929         /* enable dock on Dell Latitude C810 */
1930         if (chip->pci->subsystem_vendor == 0x1028 &&
1931             chip->pci->subsystem_device == 0x00e5)
1932                 tmp |= M3I_DOCK_ENABLE;
1933         outw(tmp | isremote, io + RING_BUS_CTRL_B);
1934         outw((inw(io + SDO_OUT_DEST_CTRL) & ~COMMAND_ADDR_OUT) | isremote,
1935              io + SDO_OUT_DEST_CTRL);
1936         outw((inw(io + SDO_IN_DEST_CTRL) & ~STATUS_ADDR_IN) | isremote,
1937              io + SDO_IN_DEST_CTRL);
1938 }
1939
1940 /*
1941  * hack, returns non zero on err
1942  */
1943 static int snd_m3_try_read_vendor(struct snd_m3 *chip)
1944 {
1945         u16 ret;
1946
1947         if (snd_m3_ac97_wait(chip))
1948                 return 1;
1949
1950         snd_m3_outb(chip, 0x80 | (AC97_VENDOR_ID1 & 0x7f), 0x30);
1951
1952         if (snd_m3_ac97_wait(chip))
1953                 return 1;
1954
1955         ret = snd_m3_inw(chip, 0x32);
1956
1957         return (ret == 0) || (ret == 0xffff);
1958 }
1959
1960 static void snd_m3_ac97_reset(struct snd_m3 *chip)
1961 {
1962         u16 dir;
1963         int delay1 = 0, delay2 = 0, i;
1964         int io = chip->iobase;
1965
1966         if (chip->allegro_flag) {
1967                 /*
1968                  * the onboard codec on the allegro seems
1969                  * to want to wait a very long time before
1970                  * coming back to life
1971                  */
1972                 delay1 = 50;
1973                 delay2 = 800;
1974         } else {
1975                 /* maestro3 */
1976                 delay1 = 20;
1977                 delay2 = 500;
1978         }
1979
1980         for (i = 0; i < 5; i++) {
1981                 dir = inw(io + GPIO_DIRECTION);
1982                 if (!chip->irda_workaround)
1983                         dir |= 0x10; /* assuming pci bus master? */
1984
1985                 snd_m3_remote_codec_config(chip, 0);
1986
1987                 outw(IO_SRAM_ENABLE, io + RING_BUS_CTRL_A);
1988                 udelay(20);
1989
1990                 outw(dir & ~GPO_PRIMARY_AC97 , io + GPIO_DIRECTION);
1991                 outw(~GPO_PRIMARY_AC97 , io + GPIO_MASK);
1992                 outw(0, io + GPIO_DATA);
1993                 outw(dir | GPO_PRIMARY_AC97, io + GPIO_DIRECTION);
1994
1995                 schedule_timeout_uninterruptible(msecs_to_jiffies(delay1));
1996
1997                 outw(GPO_PRIMARY_AC97, io + GPIO_DATA);
1998                 udelay(5);
1999                 /* ok, bring back the ac-link */
2000                 outw(IO_SRAM_ENABLE | SERIAL_AC_LINK_ENABLE, io + RING_BUS_CTRL_A);
2001                 outw(~0, io + GPIO_MASK);
2002
2003                 schedule_timeout_uninterruptible(msecs_to_jiffies(delay2));
2004
2005                 if (! snd_m3_try_read_vendor(chip))
2006                         break;
2007
2008                 delay1 += 10;
2009                 delay2 += 100;
2010
2011                 dev_dbg(chip->card->dev,
2012                         "retrying codec reset with delays of %d and %d ms\n",
2013                            delay1, delay2);
2014         }
2015
2016 #if 0
2017         /* more gung-ho reset that doesn't
2018          * seem to work anywhere :)
2019          */
2020         tmp = inw(io + RING_BUS_CTRL_A);
2021         outw(RAC_SDFS_ENABLE|LAC_SDFS_ENABLE, io + RING_BUS_CTRL_A);
2022         msleep(20);
2023         outw(tmp, io + RING_BUS_CTRL_A);
2024         msleep(50);
2025 #endif
2026 }
2027
2028 static int snd_m3_mixer(struct snd_m3 *chip)
2029 {
2030         struct snd_ac97_bus *pbus;
2031         struct snd_ac97_template ac97;
2032 #ifndef CONFIG_SND_MAESTRO3_INPUT
2033         struct snd_ctl_elem_id elem_id;
2034 #endif
2035         int err;
2036         static const struct snd_ac97_bus_ops ops = {
2037                 .write = snd_m3_ac97_write,
2038                 .read = snd_m3_ac97_read,
2039         };
2040
2041         err = snd_ac97_bus(chip->card, 0, &ops, NULL, &pbus);
2042         if (err < 0)
2043                 return err;
2044
2045         memset(&ac97, 0, sizeof(ac97));
2046         ac97.private_data = chip;
2047         err = snd_ac97_mixer(pbus, &ac97, &chip->ac97);
2048         if (err < 0)
2049                 return err;
2050
2051         /* seems ac97 PCM needs initialization.. hack hack.. */
2052         snd_ac97_write(chip->ac97, AC97_PCM, 0x8000 | (15 << 8) | 15);
2053         schedule_timeout_uninterruptible(msecs_to_jiffies(100));
2054         snd_ac97_write(chip->ac97, AC97_PCM, 0);
2055
2056 #ifndef CONFIG_SND_MAESTRO3_INPUT
2057         memset(&elem_id, 0, sizeof(elem_id));
2058         elem_id.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
2059         strcpy(elem_id.name, "Master Playback Switch");
2060         chip->master_switch = snd_ctl_find_id(chip->card, &elem_id);
2061         memset(&elem_id, 0, sizeof(elem_id));
2062         elem_id.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
2063         strcpy(elem_id.name, "Master Playback Volume");
2064         chip->master_volume = snd_ctl_find_id(chip->card, &elem_id);
2065 #endif
2066
2067         return 0;
2068 }
2069
2070
2071 /*
2072  * initialize ASSP
2073  */
2074
2075 #define MINISRC_LPF_LEN 10
2076 static const u16 minisrc_lpf[MINISRC_LPF_LEN] = {
2077         0X0743, 0X1104, 0X0A4C, 0XF88D, 0X242C,
2078         0X1023, 0X1AA9, 0X0B60, 0XEFDD, 0X186F
2079 };
2080
2081 static void snd_m3_assp_init(struct snd_m3 *chip)
2082 {
2083         unsigned int i;
2084         const __le16 *data;
2085
2086         /* zero kernel data */
2087         for (i = 0; i < (REV_B_DATA_MEMORY_UNIT_LENGTH * NUM_UNITS_KERNEL_DATA) / 2; i++)
2088                 snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
2089                                   KDATA_BASE_ADDR + i, 0);
2090
2091         /* zero mixer data? */
2092         for (i = 0; i < (REV_B_DATA_MEMORY_UNIT_LENGTH * NUM_UNITS_KERNEL_DATA) / 2; i++)
2093                 snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
2094                                   KDATA_BASE_ADDR2 + i, 0);
2095
2096         /* init dma pointer */
2097         snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
2098                           KDATA_CURRENT_DMA,
2099                           KDATA_DMA_XFER0);
2100
2101         /* write kernel into code memory.. */
2102         data = (const __le16 *)chip->assp_kernel_image->data;
2103         for (i = 0 ; i * 2 < chip->assp_kernel_image->size; i++) {
2104                 snd_m3_assp_write(chip, MEMTYPE_INTERNAL_CODE,
2105                                   REV_B_CODE_MEMORY_BEGIN + i,
2106                                   le16_to_cpu(data[i]));
2107         }
2108
2109         /*
2110          * We only have this one client and we know that 0x400
2111          * is free in our kernel's mem map, so lets just
2112          * drop it there.  It seems that the minisrc doesn't
2113          * need vectors, so we won't bother with them..
2114          */
2115         data = (const __le16 *)chip->assp_minisrc_image->data;
2116         for (i = 0; i * 2 < chip->assp_minisrc_image->size; i++) {
2117                 snd_m3_assp_write(chip, MEMTYPE_INTERNAL_CODE,
2118                                   0x400 + i, le16_to_cpu(data[i]));
2119         }
2120
2121         /*
2122          * write the coefficients for the low pass filter?
2123          */
2124         for (i = 0; i < MINISRC_LPF_LEN ; i++) {
2125                 snd_m3_assp_write(chip, MEMTYPE_INTERNAL_CODE,
2126                                   0x400 + MINISRC_COEF_LOC + i,
2127                                   minisrc_lpf[i]);
2128         }
2129
2130         snd_m3_assp_write(chip, MEMTYPE_INTERNAL_CODE,
2131                           0x400 + MINISRC_COEF_LOC + MINISRC_LPF_LEN,
2132                           0x8000);
2133
2134         /*
2135          * the minisrc is the only thing on
2136          * our task list..
2137          */
2138         snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
2139                           KDATA_TASK0,
2140                           0x400);
2141
2142         /*
2143          * init the mixer number..
2144          */
2145
2146         snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
2147                           KDATA_MIXER_TASK_NUMBER,0);
2148
2149         /*
2150          * EXTREME KERNEL MASTER VOLUME
2151          */
2152         snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
2153                           KDATA_DAC_LEFT_VOLUME, ARB_VOLUME);
2154         snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
2155                           KDATA_DAC_RIGHT_VOLUME, ARB_VOLUME);
2156
2157         chip->mixer_list.curlen = 0;
2158         chip->mixer_list.mem_addr = KDATA_MIXER_XFER0;
2159         chip->mixer_list.max = MAX_VIRTUAL_MIXER_CHANNELS;
2160         chip->adc1_list.curlen = 0;
2161         chip->adc1_list.mem_addr = KDATA_ADC1_XFER0;
2162         chip->adc1_list.max = MAX_VIRTUAL_ADC1_CHANNELS;
2163         chip->dma_list.curlen = 0;
2164         chip->dma_list.mem_addr = KDATA_DMA_XFER0;
2165         chip->dma_list.max = MAX_VIRTUAL_DMA_CHANNELS;
2166         chip->msrc_list.curlen = 0;
2167         chip->msrc_list.mem_addr = KDATA_INSTANCE0_MINISRC;
2168         chip->msrc_list.max = MAX_INSTANCE_MINISRC;
2169 }
2170
2171
2172 static int snd_m3_assp_client_init(struct snd_m3 *chip, struct m3_dma *s, int index)
2173 {
2174         int data_bytes = 2 * ( MINISRC_TMP_BUFFER_SIZE / 2 +
2175                                MINISRC_IN_BUFFER_SIZE / 2 +
2176                                1 + MINISRC_OUT_BUFFER_SIZE / 2 + 1 );
2177         int address, i;
2178
2179         /*
2180          * the revb memory map has 0x1100 through 0x1c00
2181          * free.
2182          */
2183
2184         /*
2185          * align instance address to 256 bytes so that its
2186          * shifted list address is aligned.
2187          * list address = (mem address >> 1) >> 7;
2188          */
2189         data_bytes = ALIGN(data_bytes, 256);
2190         address = 0x1100 + ((data_bytes/2) * index);
2191
2192         if ((address + (data_bytes/2)) >= 0x1c00) {
2193                 dev_err(chip->card->dev,
2194                         "no memory for %d bytes at ind %d (addr 0x%x)\n",
2195                            data_bytes, index, address);
2196                 return -ENOMEM;
2197         }
2198
2199         s->number = index;
2200         s->inst.code = 0x400;
2201         s->inst.data = address;
2202
2203         for (i = data_bytes / 2; i > 0; address++, i--) {
2204                 snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
2205                                   address, 0);
2206         }
2207
2208         return 0;
2209 }
2210
2211
2212 /*
2213  * this works for the reference board, have to find
2214  * out about others
2215  *
2216  * this needs more magic for 4 speaker, but..
2217  */
2218 static void
2219 snd_m3_amp_enable(struct snd_m3 *chip, int enable)
2220 {
2221         int io = chip->iobase;
2222         u16 gpo, polarity;
2223
2224         if (! chip->external_amp)
2225                 return;
2226
2227         polarity = enable ? 0 : 1;
2228         polarity = polarity << chip->amp_gpio;
2229         gpo = 1 << chip->amp_gpio;
2230
2231         outw(~gpo, io + GPIO_MASK);
2232
2233         outw(inw(io + GPIO_DIRECTION) | gpo,
2234              io + GPIO_DIRECTION);
2235
2236         outw((GPO_SECONDARY_AC97 | GPO_PRIMARY_AC97 | polarity),
2237              io + GPIO_DATA);
2238
2239         outw(0xffff, io + GPIO_MASK);
2240 }
2241
2242 static void
2243 snd_m3_hv_init(struct snd_m3 *chip)
2244 {
2245         unsigned long io = chip->iobase;
2246         u16 val = GPI_VOL_DOWN | GPI_VOL_UP;
2247
2248         if (!chip->is_omnibook)
2249                 return;
2250
2251         /*
2252          * Volume buttons on some HP OmniBook laptops
2253          * require some GPIO magic to work correctly.
2254          */
2255         outw(0xffff, io + GPIO_MASK);
2256         outw(0x0000, io + GPIO_DATA);
2257
2258         outw(~val, io + GPIO_MASK);
2259         outw(inw(io + GPIO_DIRECTION) & ~val, io + GPIO_DIRECTION);
2260         outw(val, io + GPIO_MASK);
2261
2262         outw(0xffff, io + GPIO_MASK);
2263 }
2264
2265 static int
2266 snd_m3_chip_init(struct snd_m3 *chip)
2267 {
2268         struct pci_dev *pcidev = chip->pci;
2269         unsigned long io = chip->iobase;
2270         u32 n;
2271         u16 w;
2272         u8 t; /* makes as much sense as 'n', no? */
2273
2274         pci_read_config_word(pcidev, PCI_LEGACY_AUDIO_CTRL, &w);
2275         w &= ~(SOUND_BLASTER_ENABLE|FM_SYNTHESIS_ENABLE|
2276                MPU401_IO_ENABLE|MPU401_IRQ_ENABLE|ALIAS_10BIT_IO|
2277                DISABLE_LEGACY);
2278         pci_write_config_word(pcidev, PCI_LEGACY_AUDIO_CTRL, w);
2279
2280         pci_read_config_dword(pcidev, PCI_ALLEGRO_CONFIG, &n);
2281         n &= ~(HV_CTRL_ENABLE | REDUCED_DEBOUNCE | HV_BUTTON_FROM_GD);
2282         n |= chip->hv_config;
2283         /* For some reason we must always use reduced debounce. */
2284         n |= REDUCED_DEBOUNCE;
2285         n |= PM_CTRL_ENABLE | CLK_DIV_BY_49 | USE_PCI_TIMING;
2286         pci_write_config_dword(pcidev, PCI_ALLEGRO_CONFIG, n);
2287
2288         outb(RESET_ASSP, chip->iobase + ASSP_CONTROL_B);
2289         pci_read_config_dword(pcidev, PCI_ALLEGRO_CONFIG, &n);
2290         n &= ~INT_CLK_SELECT;
2291         if (!chip->allegro_flag) {
2292                 n &= ~INT_CLK_MULT_ENABLE;
2293                 n |= INT_CLK_SRC_NOT_PCI;
2294         }
2295         n &=  ~( CLK_MULT_MODE_SELECT | CLK_MULT_MODE_SELECT_2 );
2296         pci_write_config_dword(pcidev, PCI_ALLEGRO_CONFIG, n);
2297
2298         if (chip->allegro_flag) {
2299                 pci_read_config_dword(pcidev, PCI_USER_CONFIG, &n);
2300                 n |= IN_CLK_12MHZ_SELECT;
2301                 pci_write_config_dword(pcidev, PCI_USER_CONFIG, n);
2302         }
2303
2304         t = inb(chip->iobase + ASSP_CONTROL_A);
2305         t &= ~( DSP_CLK_36MHZ_SELECT  | ASSP_CLK_49MHZ_SELECT);
2306         t |= ASSP_CLK_49MHZ_SELECT;
2307         t |= ASSP_0_WS_ENABLE;
2308         outb(t, chip->iobase + ASSP_CONTROL_A);
2309
2310         snd_m3_assp_init(chip); /* download DSP code before starting ASSP below */
2311         outb(RUN_ASSP, chip->iobase + ASSP_CONTROL_B);
2312
2313         outb(0x00, io + HARDWARE_VOL_CTRL);
2314         outb(0x88, io + SHADOW_MIX_REG_VOICE);
2315         outb(0x88, io + HW_VOL_COUNTER_VOICE);
2316         outb(0x88, io + SHADOW_MIX_REG_MASTER);
2317         outb(0x88, io + HW_VOL_COUNTER_MASTER);
2318
2319         return 0;
2320 }
2321
2322 static void
2323 snd_m3_enable_ints(struct snd_m3 *chip)
2324 {
2325         unsigned long io = chip->iobase;
2326         unsigned short val;
2327
2328         /* TODO: MPU401 not supported yet */
2329         val = ASSP_INT_ENABLE /*| MPU401_INT_ENABLE*/;
2330         if (chip->hv_config & HV_CTRL_ENABLE)
2331                 val |= HV_INT_ENABLE;
2332         outb(val, chip->iobase + HOST_INT_STATUS);
2333         outw(val, io + HOST_INT_CTRL);
2334         outb(inb(io + ASSP_CONTROL_C) | ASSP_HOST_INT_ENABLE,
2335              io + ASSP_CONTROL_C);
2336 }
2337
2338
2339 /*
2340  */
2341
2342 static void snd_m3_free(struct snd_card *card)
2343 {
2344         struct snd_m3 *chip = card->private_data;
2345         struct m3_dma *s;
2346         int i;
2347
2348         cancel_work_sync(&chip->hwvol_work);
2349
2350         if (chip->substreams) {
2351                 spin_lock_irq(&chip->reg_lock);
2352                 for (i = 0; i < chip->num_substreams; i++) {
2353                         s = &chip->substreams[i];
2354                         /* check surviving pcms; this should not happen though.. */
2355                         if (s->substream && s->running)
2356                                 snd_m3_pcm_stop(chip, s, s->substream);
2357                 }
2358                 spin_unlock_irq(&chip->reg_lock);
2359         }
2360         if (chip->iobase) {
2361                 outw(0, chip->iobase + HOST_INT_CTRL); /* disable ints */
2362         }
2363
2364 #ifdef CONFIG_PM_SLEEP
2365         vfree(chip->suspend_mem);
2366 #endif
2367         release_firmware(chip->assp_kernel_image);
2368         release_firmware(chip->assp_minisrc_image);
2369 }
2370
2371
2372 /*
2373  * APM support
2374  */
2375 #ifdef CONFIG_PM_SLEEP
2376 static int m3_suspend(struct device *dev)
2377 {
2378         struct snd_card *card = dev_get_drvdata(dev);
2379         struct snd_m3 *chip = card->private_data;
2380         int i, dsp_index;
2381
2382         if (chip->suspend_mem == NULL)
2383                 return 0;
2384
2385         chip->in_suspend = 1;
2386         cancel_work_sync(&chip->hwvol_work);
2387         snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
2388         snd_ac97_suspend(chip->ac97);
2389
2390         msleep(10); /* give the assp a chance to idle.. */
2391
2392         snd_m3_assp_halt(chip);
2393
2394         /* save dsp image */
2395         dsp_index = 0;
2396         for (i = REV_B_CODE_MEMORY_BEGIN; i <= REV_B_CODE_MEMORY_END; i++)
2397                 chip->suspend_mem[dsp_index++] =
2398                         snd_m3_assp_read(chip, MEMTYPE_INTERNAL_CODE, i);
2399         for (i = REV_B_DATA_MEMORY_BEGIN ; i <= REV_B_DATA_MEMORY_END; i++)
2400                 chip->suspend_mem[dsp_index++] =
2401                         snd_m3_assp_read(chip, MEMTYPE_INTERNAL_DATA, i);
2402         return 0;
2403 }
2404
2405 static int m3_resume(struct device *dev)
2406 {
2407         struct snd_card *card = dev_get_drvdata(dev);
2408         struct snd_m3 *chip = card->private_data;
2409         int i, dsp_index;
2410
2411         if (chip->suspend_mem == NULL)
2412                 return 0;
2413
2414         /* first lets just bring everything back. .*/
2415         snd_m3_outw(chip, 0, 0x54);
2416         snd_m3_outw(chip, 0, 0x56);
2417
2418         snd_m3_chip_init(chip);
2419         snd_m3_assp_halt(chip);
2420         snd_m3_ac97_reset(chip);
2421
2422         /* restore dsp image */
2423         dsp_index = 0;
2424         for (i = REV_B_CODE_MEMORY_BEGIN; i <= REV_B_CODE_MEMORY_END; i++)
2425                 snd_m3_assp_write(chip, MEMTYPE_INTERNAL_CODE, i,
2426                                   chip->suspend_mem[dsp_index++]);
2427         for (i = REV_B_DATA_MEMORY_BEGIN ; i <= REV_B_DATA_MEMORY_END; i++)
2428                 snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA, i,
2429                                   chip->suspend_mem[dsp_index++]);
2430
2431         /* tell the dma engine to restart itself */
2432         snd_m3_assp_write(chip, MEMTYPE_INTERNAL_DATA,
2433                           KDATA_DMA_ACTIVE, 0);
2434
2435         /* restore ac97 registers */
2436         snd_ac97_resume(chip->ac97);
2437
2438         snd_m3_assp_continue(chip);
2439         snd_m3_enable_ints(chip);
2440         snd_m3_amp_enable(chip, 1);
2441
2442         snd_m3_hv_init(chip);
2443
2444         snd_power_change_state(card, SNDRV_CTL_POWER_D0);
2445         chip->in_suspend = 0;
2446         return 0;
2447 }
2448
2449 static SIMPLE_DEV_PM_OPS(m3_pm, m3_suspend, m3_resume);
2450 #define M3_PM_OPS       &m3_pm
2451 #else
2452 #define M3_PM_OPS       NULL
2453 #endif /* CONFIG_PM_SLEEP */
2454
2455 #ifdef CONFIG_SND_MAESTRO3_INPUT
2456 static int snd_m3_input_register(struct snd_m3 *chip)
2457 {
2458         struct input_dev *input_dev;
2459         int err;
2460
2461         input_dev = devm_input_allocate_device(&chip->pci->dev);
2462         if (!input_dev)
2463                 return -ENOMEM;
2464
2465         snprintf(chip->phys, sizeof(chip->phys), "pci-%s/input0",
2466                  pci_name(chip->pci));
2467
2468         input_dev->name = chip->card->driver;
2469         input_dev->phys = chip->phys;
2470         input_dev->id.bustype = BUS_PCI;
2471         input_dev->id.vendor  = chip->pci->vendor;
2472         input_dev->id.product = chip->pci->device;
2473         input_dev->dev.parent = &chip->pci->dev;
2474
2475         __set_bit(EV_KEY, input_dev->evbit);
2476         __set_bit(KEY_MUTE, input_dev->keybit);
2477         __set_bit(KEY_VOLUMEDOWN, input_dev->keybit);
2478         __set_bit(KEY_VOLUMEUP, input_dev->keybit);
2479
2480         err = input_register_device(input_dev);
2481         if (err)
2482                 return err;
2483
2484         chip->input_dev = input_dev;
2485         return 0;
2486 }
2487 #endif /* CONFIG_INPUT */
2488
2489 /*
2490  */
2491
2492 static int
2493 snd_m3_create(struct snd_card *card, struct pci_dev *pci,
2494               int enable_amp,
2495               int amp_gpio)
2496 {
2497         struct snd_m3 *chip = card->private_data;
2498         int i, err;
2499         const struct snd_pci_quirk *quirk;
2500
2501         if (pcim_enable_device(pci))
2502                 return -EIO;
2503
2504         /* check, if we can restrict PCI DMA transfers to 28 bits */
2505         if (dma_set_mask_and_coherent(&pci->dev, DMA_BIT_MASK(28))) {
2506                 dev_err(card->dev,
2507                         "architecture does not support 28bit PCI busmaster DMA\n");
2508                 return -ENXIO;
2509         }
2510
2511         spin_lock_init(&chip->reg_lock);
2512
2513         switch (pci->device) {
2514         case PCI_DEVICE_ID_ESS_ALLEGRO:
2515         case PCI_DEVICE_ID_ESS_ALLEGRO_1:
2516         case PCI_DEVICE_ID_ESS_CANYON3D_2LE:
2517         case PCI_DEVICE_ID_ESS_CANYON3D_2:
2518                 chip->allegro_flag = 1;
2519                 break;
2520         }
2521
2522         chip->card = card;
2523         chip->pci = pci;
2524         chip->irq = -1;
2525         INIT_WORK(&chip->hwvol_work, snd_m3_update_hw_volume);
2526         card->private_free = snd_m3_free;
2527
2528         chip->external_amp = enable_amp;
2529         if (amp_gpio >= 0 && amp_gpio <= 0x0f)
2530                 chip->amp_gpio = amp_gpio;
2531         else {
2532                 quirk = snd_pci_quirk_lookup(pci, m3_amp_quirk_list);
2533                 if (quirk) {
2534                         dev_info(card->dev, "set amp-gpio for '%s'\n",
2535                                  snd_pci_quirk_name(quirk));
2536                         chip->amp_gpio = quirk->value;
2537                 } else if (chip->allegro_flag)
2538                         chip->amp_gpio = GPO_EXT_AMP_ALLEGRO;
2539                 else /* presumably this is for all 'maestro3's.. */
2540                         chip->amp_gpio = GPO_EXT_AMP_M3;
2541         }
2542
2543         quirk = snd_pci_quirk_lookup(pci, m3_irda_quirk_list);
2544         if (quirk) {
2545                 dev_info(card->dev, "enabled irda workaround for '%s'\n",
2546                          snd_pci_quirk_name(quirk));
2547                 chip->irda_workaround = 1;
2548         }
2549         quirk = snd_pci_quirk_lookup(pci, m3_hv_quirk_list);
2550         if (quirk)
2551                 chip->hv_config = quirk->value;
2552         if (snd_pci_quirk_lookup(pci, m3_omnibook_quirk_list))
2553                 chip->is_omnibook = 1;
2554
2555         chip->num_substreams = NR_DSPS;
2556         chip->substreams = devm_kcalloc(&pci->dev, chip->num_substreams,
2557                                         sizeof(struct m3_dma), GFP_KERNEL);
2558         if (!chip->substreams)
2559                 return -ENOMEM;
2560
2561         err = request_firmware(&chip->assp_kernel_image,
2562                                "ess/maestro3_assp_kernel.fw", &pci->dev);
2563         if (err < 0)
2564                 return err;
2565
2566         err = request_firmware(&chip->assp_minisrc_image,
2567                                "ess/maestro3_assp_minisrc.fw", &pci->dev);
2568         if (err < 0)
2569                 return err;
2570
2571         err = pci_request_regions(pci, card->driver);
2572         if (err < 0)
2573                 return err;
2574
2575         chip->iobase = pci_resource_start(pci, 0);
2576
2577         /* just to be sure */
2578         pci_set_master(pci);
2579
2580         snd_m3_chip_init(chip);
2581         snd_m3_assp_halt(chip);
2582
2583         snd_m3_ac97_reset(chip);
2584
2585         snd_m3_amp_enable(chip, 1);
2586
2587         snd_m3_hv_init(chip);
2588
2589         if (devm_request_irq(&pci->dev, pci->irq, snd_m3_interrupt, IRQF_SHARED,
2590                              KBUILD_MODNAME, chip)) {
2591                 dev_err(card->dev, "unable to grab IRQ %d\n", pci->irq);
2592                 return -ENOMEM;
2593         }
2594         chip->irq = pci->irq;
2595         card->sync_irq = chip->irq;
2596
2597 #ifdef CONFIG_PM_SLEEP
2598         chip->suspend_mem =
2599                 vmalloc(array_size(sizeof(u16),
2600                                    REV_B_CODE_MEMORY_LENGTH +
2601                                         REV_B_DATA_MEMORY_LENGTH));
2602         if (chip->suspend_mem == NULL)
2603                 dev_warn(card->dev, "can't allocate apm buffer\n");
2604 #endif
2605
2606         err = snd_m3_mixer(chip);
2607         if (err < 0)
2608                 return err;
2609
2610         for (i = 0; i < chip->num_substreams; i++) {
2611                 struct m3_dma *s = &chip->substreams[i];
2612                 err = snd_m3_assp_client_init(chip, s, i);
2613                 if (err < 0)
2614                         return err;
2615         }
2616
2617         err = snd_m3_pcm(chip, 0);
2618         if (err < 0)
2619                 return err;
2620
2621 #ifdef CONFIG_SND_MAESTRO3_INPUT
2622         if (chip->hv_config & HV_CTRL_ENABLE) {
2623                 err = snd_m3_input_register(chip);
2624                 if (err)
2625                         dev_warn(card->dev,
2626                                  "Input device registration failed with error %i",
2627                                  err);
2628         }
2629 #endif
2630
2631         snd_m3_enable_ints(chip);
2632         snd_m3_assp_continue(chip);
2633
2634         return 0;
2635 }
2636
2637 /*
2638  */
2639 static int
2640 snd_m3_probe(struct pci_dev *pci, const struct pci_device_id *pci_id)
2641 {
2642         static int dev;
2643         struct snd_card *card;
2644         struct snd_m3 *chip;
2645         int err;
2646
2647         /* don't pick up modems */
2648         if (((pci->class >> 8) & 0xffff) != PCI_CLASS_MULTIMEDIA_AUDIO)
2649                 return -ENODEV;
2650
2651         if (dev >= SNDRV_CARDS)
2652                 return -ENODEV;
2653         if (!enable[dev]) {
2654                 dev++;
2655                 return -ENOENT;
2656         }
2657
2658         err = snd_devm_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE,
2659                                 sizeof(*chip), &card);
2660         if (err < 0)
2661                 return err;
2662         chip = card->private_data;
2663
2664         switch (pci->device) {
2665         case PCI_DEVICE_ID_ESS_ALLEGRO:
2666         case PCI_DEVICE_ID_ESS_ALLEGRO_1:
2667                 strcpy(card->driver, "Allegro");
2668                 break;
2669         case PCI_DEVICE_ID_ESS_CANYON3D_2LE:
2670         case PCI_DEVICE_ID_ESS_CANYON3D_2:
2671                 strcpy(card->driver, "Canyon3D-2");
2672                 break;
2673         default:
2674                 strcpy(card->driver, "Maestro3");
2675                 break;
2676         }
2677
2678         err = snd_m3_create(card, pci, external_amp[dev], amp_gpio[dev]);
2679         if (err < 0)
2680                 return err;
2681
2682         sprintf(card->shortname, "ESS %s PCI", card->driver);
2683         sprintf(card->longname, "%s at 0x%lx, irq %d",
2684                 card->shortname, chip->iobase, chip->irq);
2685
2686         err = snd_card_register(card);
2687         if (err < 0)
2688                 return err;
2689
2690 #if 0 /* TODO: not supported yet */
2691         /* TODO enable MIDI IRQ and I/O */
2692         err = snd_mpu401_uart_new(chip->card, 0, MPU401_HW_MPU401,
2693                                   chip->iobase + MPU401_DATA_PORT,
2694                                   MPU401_INFO_INTEGRATED | MPU401_INFO_IRQ_HOOK,
2695                                   -1, &chip->rmidi);
2696         if (err < 0)
2697                 dev_warn(card->dev, "no MIDI support.\n");
2698 #endif
2699
2700         pci_set_drvdata(pci, card);
2701         dev++;
2702         return 0;
2703 }
2704
2705 static struct pci_driver m3_driver = {
2706         .name = KBUILD_MODNAME,
2707         .id_table = snd_m3_ids,
2708         .probe = snd_m3_probe,
2709         .driver = {
2710                 .pm = M3_PM_OPS,
2711         },
2712 };
2713
2714 module_pci_driver(m3_driver);