sound/pci/echoaudio/echoaudio.h

   1 /****************************************************************************
   2
   3    Copyright Echo Digital Audio Corporation (c) 1998 - 2004
   4    All rights reserved
   5    www.echoaudio.com
   6
   7    This file is part of Echo Digital Audio's generic driver library.
   8
   9    Echo Digital Audio's generic driver library is free software;
  10    you can redistribute it and/or modify it under the terms of
  11    the GNU General Public License as published by the Free Software
  12    Foundation.
  13
  14    This program is distributed in the hope that it will be useful,
  15    but WITHOUT ANY WARRANTY; without even the implied warranty of
  16    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17    GNU General Public License for more details.
  18
  19    You should have received a copy of the GNU General Public License
  20    along with this program; if not, write to the Free Software
  21    Foundation, Inc., 59 Temple Place - Suite 330, Boston,
  22    MA  02111-1307, USA.
  23
  24  ****************************************************************************
  25
  26  Translation from C++ and adaptation for use in ALSA-Driver
  27  were made by Giuliano Pochini <pochini@shiny.it>
  28
  29  ****************************************************************************
  30
  31
  32    Here's a block diagram of how most of the cards work:
  33
  34                   +-----------+
  35            record |           |<-------------------- Inputs
  36           <-------|           |        |
  37      PCI          | Transport |        |
  38      bus          |  engine   |       \|/
  39           ------->|           |    +-------+
  40             play  |           |--->|monitor|-------> Outputs
  41                   +-----------+    | mixer |
  42                                    +-------+
  43
  44    The lines going to and from the PCI bus represent "pipes".  A pipe performs
  45    audio transport - moving audio data to and from buffers on the host via
  46    bus mastering.
  47
  48    The inputs and outputs on the right represent input and output "busses."
  49    A bus is a physical, real connection to the outside world.  An example
  50    of a bus would be the 1/4" analog connectors on the back of Layla or
  51    an RCA S/PDIF connector.
  52
  53    For most cards, there is a one-to-one correspondence between outputs
  54    and busses; that is, each individual pipe is hard-wired to a single bus.
  55
  56    Cards that work this way are Darla20, Gina20, Layla20, Darla24, Gina24,
  57    Layla24, Mona, and Indigo.
  58
  59
  60    Mia has a feature called "virtual outputs."
  61
  62
  63                   +-----------+
  64            record |           |<----------------------------- Inputs
  65           <-------|           |                  |
  66      PCI          | Transport |                  |
  67      bus          |  engine   |                 \|/
  68           ------->|           |   +------+   +-------+
  69             play  |           |-->|vmixer|-->|monitor|-------> Outputs
  70                   +-----------+   +------+   | mixer |
  71                                              +-------+
  72
  73
  74    Obviously, the difference here is the box labeled "vmixer."  Vmixer is
  75    short for "virtual output mixer."  For Mia, pipes are *not* hard-wired
  76    to a single bus; the vmixer lets you mix any pipe to any bus in any
  77    combination.
  78
  79    Note, however, that the left-hand side of the diagram is unchanged.
  80    Transport works exactly the same way - the difference is in the mixer stage.
  81
  82
  83    Pipes and busses are numbered starting at zero.
  84
  85
  86
  87    Pipe index
  88    ==========
  89
  90    A number of calls in CEchoGals refer to a "pipe index".  A pipe index is
  91    a unique number for a pipe that unambiguously refers to a playback or record
  92    pipe.  Pipe indices are numbered starting with analog outputs, followed by
  93    digital outputs, then analog inputs, then digital inputs.
  94
  95    Take Gina24 as an example:
  96
  97    Pipe index
  98
  99    0-7            Analog outputs (0 .. FirstDigitalBusOut-1)
 100    8-15           Digital outputs (FirstDigitalBusOut .. NumBussesOut-1)
 101    16-17          Analog inputs
 102    18-25          Digital inputs
 103
 104
 105    You get the pipe index by calling CEchoGals::OpenAudio; the other transport
 106    functions take the pipe index as a parameter.  If you need a pipe index for
 107    some other reason, use the handy Makepipe_index method.
 108
 109
 110    Some calls take a CChannelMask parameter; CChannelMask is a handy way to
 111    group pipe indices.
 112
 113
 114
 115    Digital mode switch
 116    ===================
 117
 118    Some cards (right now, Gina24, Layla24, and Mona) have a Digital Mode Switch
 119    or DMS.  Cards with a DMS can be set to one of three mutually exclusive
 120    digital modes: S/PDIF RCA, S/PDIF optical, or ADAT optical.
 121
 122    This may create some confusion since ADAT optical is 8 channels wide and
 123    S/PDIF is only two channels wide.  Gina24, Layla24, and Mona handle this
 124    by acting as if they always have 8 digital outs and ins.  If you are in
 125    either S/PDIF mode, the last 6 channels don't do anything - data sent
 126    out these channels is thrown away and you will always record zeros.
 127
 128    Note that with Gina24, Layla24, and Mona, sample rates above 50 kHz are
 129    only available if you have the card configured for S/PDIF optical or S/PDIF
 130    RCA.
 131
 132
 133
 134    Double speed mode
 135    =================
 136
 137    Some of the cards support 88.2 kHz and 96 kHz sampling (Darla24, Gina24,
 138    Layla24, Mona, Mia, and Indigo).  For these cards, the driver sometimes has
 139    to worry about "double speed mode"; double speed mode applies whenever the
 140    sampling rate is above 50 kHz.
 141
 142    For instance, Mona and Layla24 support word clock sync.  However, they
 143    actually support two different word clock modes - single speed (below
 144    50 kHz) and double speed (above 50 kHz).  The hardware detects if a single
 145    or double speed word clock signal is present; the generic code uses that
 146    information to determine which mode to use.
 147
 148    The generic code takes care of all this for you.
 149 */
 150
 151
 152 #ifndef _ECHOAUDIO_H_
 153 #define _ECHOAUDIO_H_
 154
 155
 156 #define TRUE 1
 157 #define FALSE 0
 158
 159 #include "echoaudio_dsp.h"
 160
 161
 162
 163 /***********************************************************************
 164
 165         PCI configuration space
 166
 167 ***********************************************************************/
 168
 169 /*
 170  * PCI vendor ID and device IDs for the hardware
 171  */
 172 #define VENDOR_ID               0x1057
 173 #define DEVICE_ID_56301         0x1801
 174 #define DEVICE_ID_56361         0x3410
 175 #define SUBVENDOR_ID            0xECC0
 176
 177
 178 /*
 179  * Valid Echo PCI subsystem card IDs
 180  */
 181 #define DARLA20                 0x0010
 182 #define GINA20                  0x0020
 183 #define LAYLA20                 0x0030
 184 #define DARLA24                 0x0040
 185 #define GINA24                  0x0050
 186 #define LAYLA24                 0x0060
 187 #define MONA                    0x0070
 188 #define MIA                     0x0080
 189 #define INDIGO                  0x0090
 190 #define INDIGO_IO               0x00a0
 191 #define INDIGO_DJ               0x00b0
 192 #define DC8                     0x00c0
 193 #define INDIGO_IOX              0x00d0
 194 #define INDIGO_DJX              0x00e0
 195 #define ECHO3G                  0x0100
 196
 197
 198 /************************************************************************
 199
 200         Array sizes and so forth
 201
 202 ***********************************************************************/
 203
 204 /*
 205  * Sizes
 206  */
 207 #define ECHO_MAXAUDIOINPUTS     32      /* Max audio input channels */
 208 #define ECHO_MAXAUDIOOUTPUTS    32      /* Max audio output channels */
 209 #define ECHO_MAXAUDIOPIPES      32      /* Max number of input and output
 210                                          * pipes */
 211 #define E3G_MAX_OUTPUTS         16
 212 #define ECHO_MAXMIDIJACKS       1       /* Max MIDI ports */
 213 #define ECHO_MIDI_QUEUE_SZ      512     /* Max MIDI input queue entries */
 214 #define ECHO_MTC_QUEUE_SZ       32      /* Max MIDI time code input queue
 215                                          * entries */
 216
 217 /*
 218  * MIDI activity indicator timeout
 219  */
 220 #define MIDI_ACTIVITY_TIMEOUT_USEC      200000
 221
 222
 223 /****************************************************************************
 224
 225    Clocks
 226
 227 *****************************************************************************/
 228
 229 /*
 230  * Clock numbers
 231  */
 232 #define ECHO_CLOCK_INTERNAL             0
 233 #define ECHO_CLOCK_WORD                 1
 234 #define ECHO_CLOCK_SUPER                2
 235 #define ECHO_CLOCK_SPDIF                3
 236 #define ECHO_CLOCK_ADAT                 4
 237 #define ECHO_CLOCK_ESYNC                5
 238 #define ECHO_CLOCK_ESYNC96              6
 239 #define ECHO_CLOCK_MTC                  7
 240 #define ECHO_CLOCK_NUMBER               8
 241 #define ECHO_CLOCKS                     0xffff
 242
 243 /*
 244  * Clock bit numbers - used to report capabilities and whatever clocks
 245  * are being detected dynamically.
 246  */
 247 #define ECHO_CLOCK_BIT_INTERNAL         (1 << ECHO_CLOCK_INTERNAL)
 248 #define ECHO_CLOCK_BIT_WORD             (1 << ECHO_CLOCK_WORD)
 249 #define ECHO_CLOCK_BIT_SUPER            (1 << ECHO_CLOCK_SUPER)
 250 #define ECHO_CLOCK_BIT_SPDIF            (1 << ECHO_CLOCK_SPDIF)
 251 #define ECHO_CLOCK_BIT_ADAT             (1 << ECHO_CLOCK_ADAT)
 252 #define ECHO_CLOCK_BIT_ESYNC            (1 << ECHO_CLOCK_ESYNC)
 253 #define ECHO_CLOCK_BIT_ESYNC96          (1 << ECHO_CLOCK_ESYNC96)
 254 #define ECHO_CLOCK_BIT_MTC              (1<<ECHO_CLOCK_MTC)
 255
 256
 257 /***************************************************************************
 258
 259    Digital modes
 260
 261 ****************************************************************************/
 262
 263 /*
 264  * Digital modes for Mona, Layla24, and Gina24
 265  */
 266 #define DIGITAL_MODE_NONE                       0xFF
 267 #define DIGITAL_MODE_SPDIF_RCA                  0
 268 #define DIGITAL_MODE_SPDIF_OPTICAL              1
 269 #define DIGITAL_MODE_ADAT                       2
 270 #define DIGITAL_MODE_SPDIF_CDROM                3
 271 #define DIGITAL_MODES                           4
 272
 273 /*
 274  * Digital mode capability masks
 275  */
 276 #define ECHOCAPS_HAS_DIGITAL_MODE_SPDIF_RCA     (1 << DIGITAL_MODE_SPDIF_RCA)
 277 #define ECHOCAPS_HAS_DIGITAL_MODE_SPDIF_OPTICAL (1 << DIGITAL_MODE_SPDIF_OPTICAL)
 278 #define ECHOCAPS_HAS_DIGITAL_MODE_ADAT          (1 << DIGITAL_MODE_ADAT)
 279 #define ECHOCAPS_HAS_DIGITAL_MODE_SPDIF_CDROM   (1 << DIGITAL_MODE_SPDIF_CDROM)
 280
 281
 282 #define EXT_3GBOX_NC                    0x01    /* 3G box not connected */
 283 #define EXT_3GBOX_NOT_SET               0x02    /* 3G box not detected yet */
 284
 285
 286 #define ECHOGAIN_MUTED          (-128)  /* Minimum possible gain */
 287 #define ECHOGAIN_MINOUT         (-128)  /* Min output gain (dB) */
 288 #define ECHOGAIN_MAXOUT         (6)     /* Max output gain (dB) */
 289 #define ECHOGAIN_MININP         (-50)   /* Min input gain (0.5 dB) */
 290 #define ECHOGAIN_MAXINP         (50)    /* Max input gain (0.5 dB) */
 291
 292 #define PIPE_STATE_STOPPED      0       /* Pipe has been reset */
 293 #define PIPE_STATE_PAUSED       1       /* Pipe has been stopped */
 294 #define PIPE_STATE_STARTED      2       /* Pipe has been started */
 295 #define PIPE_STATE_PENDING      3       /* Pipe has pending start */
 296
 297
 298 /* Debug initialization */
 299 #ifdef CONFIG_SND_DEBUG
 300 #define DE_INIT(x) snd_printk x
 301 #else
 302 #define DE_INIT(x)
 303 #endif
 304
 305 /* Debug hw_params callbacks */
 306 #ifdef CONFIG_SND_DEBUG
 307 #define DE_HWP(x) snd_printk x
 308 #else
 309 #define DE_HWP(x)
 310 #endif
 311
 312 /* Debug normal activity (open, start, stop...) */
 313 #ifdef CONFIG_SND_DEBUG
 314 #define DE_ACT(x) snd_printk x
 315 #else
 316 #define DE_ACT(x)
 317 #endif
 318
 319 /* Debug midi activity */
 320 #ifdef CONFIG_SND_DEBUG
 321 #define DE_MID(x) snd_printk x
 322 #else
 323 #define DE_MID(x)
 324 #endif
 325
 326
 327 struct audiopipe {
 328         volatile u32 *dma_counter;      /* Commpage register that contains
 329                                          * the current dma position
 330                                          * (lower 32 bits only)
 331                                          */
 332         u32 last_counter;               /* The last position, which is used
 333                                          * to compute...
 334                                          */
 335         u32 position;                   /* ...the number of bytes tranferred
 336                                          * by the DMA engine, modulo the
 337                                          * buffer size
 338                                          */
 339         short index;                    /* Index of the first channel or <0
 340                                          * if hw is not configured yet
 341                                          */
 342         short interleave;
 343         struct snd_dma_buffer sgpage;   /* Room for the scatter-gather list */
 344         struct snd_pcm_hardware hw;
 345         struct snd_pcm_hw_constraint_list constr;
 346         short sglist_head;
 347         char state;                     /* pipe state */
 348 };
 349
 350
 351 struct audioformat {
 352         u8 interleave;                  /* How the data is arranged in memory:
 353                                          * mono = 1, stereo = 2, ...
 354                                          */
 355         u8 bits_per_sample;             /* 8, 16, 24, 32 (24 bits left aligned) */
 356         char mono_to_stereo;            /* Only used if interleave is 1 and
 357                                          * if this is an output pipe.
 358                                          */
 359         char data_are_bigendian;        /* 1 = big endian, 0 = little endian */
 360 };
 361
 362
 363 struct echoaudio {
 364         spinlock_t lock;
 365         struct snd_pcm_substream *substream[DSP_MAXPIPES];
 366         int last_period[DSP_MAXPIPES];
 367         struct mutex mode_mutex;
 368         u16 num_digital_modes, digital_mode_list[6];
 369         u16 num_clock_sources, clock_source_list[10];
 370         atomic_t opencount;
 371         struct snd_kcontrol *clock_src_ctl;
 372         struct snd_pcm *analog_pcm, *digital_pcm;
 373         struct snd_card *card;
 374         const char *card_name;
 375         struct pci_dev *pci;
 376         unsigned long dsp_registers_phys;
 377         struct resource *iores;
 378         struct snd_dma_buffer commpage_dma_buf;
 379         int irq;
 380 #ifdef ECHOCARD_HAS_MIDI
 381         struct snd_rawmidi *rmidi;
 382         struct snd_rawmidi_substream *midi_in, *midi_out;
 383 #endif
 384         struct timer_list timer;
 385         char tinuse;                            /* Timer in use */
 386         char midi_full;                         /* MIDI output buffer is full */
 387         char can_set_rate;
 388         char rate_set;
 389
 390         /* This stuff is used mainly by the lowlevel code */
 391         struct comm_page *comm_page;    /* Virtual address of the memory
 392                                          * seen by DSP
 393                                          */
 394         u32 pipe_alloc_mask;            /* Bitmask of allocated pipes */
 395         u32 pipe_cyclic_mask;           /* Bitmask of pipes with cyclic
 396                                          * buffers
 397                                          */
 398         u32 sample_rate;                /* Card sample rate in Hz */
 399         u8 digital_mode;                /* Current digital mode
 400                                          * (see DIGITAL_MODE_*)
 401                                          */
 402         u8 spdif_status;                /* Gina20, Darla20, Darla24 - only */
 403         u8 clock_state;                 /* Gina20, Darla20, Darla24 - only */
 404         u8 input_clock;                 /* Currently selected sample clock
 405                                          * source
 406                                          */
 407         u8 output_clock;                /* Layla20 only */
 408         char meters_enabled;            /* VU-meters status */
 409         char asic_loaded;               /* Set TRUE when ASIC loaded */
 410         char bad_board;                 /* Set TRUE if DSP won't load */
 411         char professional_spdif;        /* 0 = consumer; 1 = professional */
 412         char non_audio_spdif;           /* 3G - only */
 413         char digital_in_automute;       /* Gina24, Layla24, Mona - only */
 414         char has_phantom_power;
 415         char hasnt_input_nominal_level; /* Gina3G */
 416         char phantom_power;             /* Gina3G - only */
 417         char has_midi;
 418         char midi_input_enabled;
 419
 420 #ifdef ECHOCARD_ECHO3G
 421         /* External module -dependent pipe and bus indexes */
 422         char px_digital_out, px_analog_in, px_digital_in, px_num;
 423         char bx_digital_out, bx_analog_in, bx_digital_in, bx_num;
 424 #endif
 425
 426         char nominal_level[ECHO_MAXAUDIOPIPES]; /* True == -10dBV
 427                                                  * False == +4dBu */
 428         s8 input_gain[ECHO_MAXAUDIOINPUTS];     /* Input level -50..+50
 429                                                  * unit is 0.5dB */
 430         s8 output_gain[ECHO_MAXAUDIOOUTPUTS];   /* Output level -128..+6 dB
 431                                                  * (-128=muted) */
 432         s8 monitor_gain[ECHO_MAXAUDIOOUTPUTS][ECHO_MAXAUDIOINPUTS];
 433                 /* -128..+6 dB */
 434         s8 vmixer_gain[ECHO_MAXAUDIOOUTPUTS][ECHO_MAXAUDIOOUTPUTS];
 435                 /* -128..+6 dB */
 436
 437         u16 digital_modes;              /* Bitmask of supported modes
 438                                          * (see ECHOCAPS_HAS_DIGITAL_MODE_*) */
 439         u16 input_clock_types;          /* Suppoted input clock types */
 440         u16 output_clock_types;         /* Suppoted output clock types -
 441                                          * Layla20 only */
 442         u16 device_id, subdevice_id;
 443         u16 *dsp_code;                  /* Current DSP code loaded,
 444                                          * NULL if nothing loaded */
 445         const struct firmware *dsp_code_to_load;/* DSP code to load */
 446         const struct firmware *asic_code;       /* Current ASIC code */
 447         u32 comm_page_phys;                     /* Physical address of the
 448                                                  * memory seen by DSP */
 449         volatile u32 __iomem *dsp_registers;    /* DSP's register base */
 450         u32 active_mask;                        /* Chs. active mask or
 451                                                  * punks out */
 452
 453 #ifdef ECHOCARD_HAS_MIDI
 454         u16 mtc_state;                          /* State for MIDI input parsing state machine */
 455         u8 midi_buffer[MIDI_IN_BUFFER_SIZE];
 456 #endif
 457 };
 458
 459
 460 static int init_dsp_comm_page(struct echoaudio *chip);
 461 static int init_line_levels(struct echoaudio *chip);
 462 static int free_pipes(struct echoaudio *chip, struct audiopipe *pipe);
 463 static int load_firmware(struct echoaudio *chip);
 464 static int wait_handshake(struct echoaudio *chip);
 465 static int send_vector(struct echoaudio *chip, u32 command);
 466 static int get_firmware(const struct firmware **fw_entry,
 467                         const struct firmware *frm, struct echoaudio *chip);
 468 static void free_firmware(const struct firmware *fw_entry);
 469
 470 #ifdef ECHOCARD_HAS_MIDI
 471 static int enable_midi_input(struct echoaudio *chip, char enable);
 472 static int midi_service_irq(struct echoaudio *chip);
 473 static int __devinit snd_echo_midi_create(struct snd_card *card,
 474                                           struct echoaudio *chip);
 475 #endif
 476
 477
 478 static inline void clear_handshake(struct echoaudio *chip)
 479 {
 480         chip->comm_page->handshake = 0;
 481 }
 482
 483 static inline u32 get_dsp_register(struct echoaudio *chip, u32 index)
 484 {
 485         return readl(&chip->dsp_registers[index]);
 486 }
 487
 488 static inline void set_dsp_register(struct echoaudio *chip, u32 index,
 489                                     u32 value)
 490 {
 491         writel(value, &chip->dsp_registers[index]);
 492 }
 493
 494
 495 /* Pipe and bus indexes. PX_* and BX_* are defined as chip->px_* and chip->bx_*
 496 for 3G cards because they depend on the external box. They are integer
 497 constants for all other cards.
 498 Never use those defines directly, use the following functions instead. */
 499
 500 static inline int px_digital_out(const struct echoaudio *chip)
 501 {
 502         return PX_DIGITAL_OUT;
 503 }
 504
 505 static inline int px_analog_in(const struct echoaudio *chip)
 506 {
 507         return PX_ANALOG_IN;
 508 }
 509
 510 static inline int px_digital_in(const struct echoaudio *chip)
 511 {
 512         return PX_DIGITAL_IN;
 513 }
 514
 515 static inline int px_num(const struct echoaudio *chip)
 516 {
 517         return PX_NUM;
 518 }
 519
 520 static inline int bx_digital_out(const struct echoaudio *chip)
 521 {
 522         return BX_DIGITAL_OUT;
 523 }
 524
 525 static inline int bx_analog_in(const struct echoaudio *chip)
 526 {
 527         return BX_ANALOG_IN;
 528 }
 529
 530 static inline int bx_digital_in(const struct echoaudio *chip)
 531 {
 532         return BX_DIGITAL_IN;
 533 }
 534
 535 static inline int bx_num(const struct echoaudio *chip)
 536 {
 537         return BX_NUM;
 538 }
 539
 540 static inline int num_pipes_out(const struct echoaudio *chip)
 541 {
 542         return px_analog_in(chip);
 543 }
 544
 545 static inline int num_pipes_in(const struct echoaudio *chip)
 546 {
 547         return px_num(chip) - px_analog_in(chip);
 548 }
 549
 550 static inline int num_busses_out(const struct echoaudio *chip)
 551 {
 552         return bx_analog_in(chip);
 553 }
 554
 555 static inline int num_busses_in(const struct echoaudio *chip)
 556 {
 557         return bx_num(chip) - bx_analog_in(chip);
 558 }
 559
 560 static inline int num_analog_busses_out(const struct echoaudio *chip)
 561 {
 562         return bx_digital_out(chip);
 563 }
 564
 565 static inline int num_analog_busses_in(const struct echoaudio *chip)
 566 {
 567         return bx_digital_in(chip) - bx_analog_in(chip);
 568 }
 569
 570 static inline int num_digital_busses_out(const struct echoaudio *chip)
 571 {
 572         return num_busses_out(chip) - num_analog_busses_out(chip);
 573 }
 574
 575 static inline int num_digital_busses_in(const struct echoaudio *chip)
 576 {
 577         return num_busses_in(chip) - num_analog_busses_in(chip);
 578 }
 579
 580 /* The monitor array is a one-dimensional array; compute the offset
 581  * into the array */
 582 static inline int monitor_index(const struct echoaudio *chip, int out, int in)
 583 {
 584         return out * num_busses_in(chip) + in;
 585 }
 586
 587
 588 #ifndef pci_device
 589 #define pci_device(chip) (&chip->pci->dev)
 590 #endif
 591
 592
 593 #endif /* _ECHOAUDIO_H_ */