LXR linux/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 ECHO3G                  0x0100
 193
 194
 195/************************************************************************
 196
 197        Array sizes and so forth
 198
 199***********************************************************************/
 200
 201/*
 202 * Sizes
 203 */
 204#define ECHO_MAXAUDIOINPUTS     32      /* Max audio input channels */
 205#define ECHO_MAXAUDIOOUTPUTS    32      /* Max audio output channels */
 206#define ECHO_MAXAUDIOPIPES      32      /* Max number of input and output
 207                                         * pipes */
 208#define E3G_MAX_OUTPUTS         16
 209#define ECHO_MAXMIDIJACKS       1       /* Max MIDI ports */
 210#define ECHO_MIDI_QUEUE_SZ      512     /* Max MIDI input queue entries */
 211#define ECHO_MTC_QUEUE_SZ       32      /* Max MIDI time code input queue
 212                                         * entries */
 213
 214/*
 215 * MIDI activity indicator timeout
 216 */
 217#define MIDI_ACTIVITY_TIMEOUT_USEC      200000
 218
 219
 220/****************************************************************************
 221 
 222   Clocks
 223
 224*****************************************************************************/
 225
 226/*
 227 * Clock numbers
 228 */
 229#define ECHO_CLOCK_INTERNAL             0
 230#define ECHO_CLOCK_WORD                 1
 231#define ECHO_CLOCK_SUPER                2
 232#define ECHO_CLOCK_SPDIF                3
 233#define ECHO_CLOCK_ADAT                 4
 234#define ECHO_CLOCK_ESYNC                5
 235#define ECHO_CLOCK_ESYNC96              6
 236#define ECHO_CLOCK_MTC                  7
 237#define ECHO_CLOCK_NUMBER               8
 238#define ECHO_CLOCKS                     0xffff
 239
 240/*
 241 * Clock bit numbers - used to report capabilities and whatever clocks
 242 * are being detected dynamically.
 243 */
 244#define ECHO_CLOCK_BIT_INTERNAL         (1 << ECHO_CLOCK_INTERNAL)
 245#define ECHO_CLOCK_BIT_WORD             (1 << ECHO_CLOCK_WORD)
 246#define ECHO_CLOCK_BIT_SUPER            (1 << ECHO_CLOCK_SUPER)
 247#define ECHO_CLOCK_BIT_SPDIF            (1 << ECHO_CLOCK_SPDIF)
 248#define ECHO_CLOCK_BIT_ADAT             (1 << ECHO_CLOCK_ADAT)
 249#define ECHO_CLOCK_BIT_ESYNC            (1 << ECHO_CLOCK_ESYNC)
 250#define ECHO_CLOCK_BIT_ESYNC96          (1 << ECHO_CLOCK_ESYNC96)
 251#define ECHO_CLOCK_BIT_MTC              (1<<ECHO_CLOCK_MTC)
 252
 253
 254/***************************************************************************
 255
 256   Digital modes
 257
 258****************************************************************************/
 259
 260/*
 261 * Digital modes for Mona, Layla24, and Gina24
 262 */
 263#define DIGITAL_MODE_NONE                       0xFF
 264#define DIGITAL_MODE_SPDIF_RCA                  0
 265#define DIGITAL_MODE_SPDIF_OPTICAL              1
 266#define DIGITAL_MODE_ADAT                       2
 267#define DIGITAL_MODE_SPDIF_CDROM                3
 268#define DIGITAL_MODES                           4
 269
 270/*
 271 * Digital mode capability masks
 272 */
 273#define ECHOCAPS_HAS_DIGITAL_MODE_SPDIF_RCA     (1 << DIGITAL_MODE_SPDIF_RCA)
 274#define ECHOCAPS_HAS_DIGITAL_MODE_SPDIF_OPTICAL (1 << DIGITAL_MODE_SPDIF_OPTICAL)
 275#define ECHOCAPS_HAS_DIGITAL_MODE_ADAT          (1 << DIGITAL_MODE_ADAT)
 276#define ECHOCAPS_HAS_DIGITAL_MODE_SPDIF_CDROM   (1 << DIGITAL_MODE_SPDIF_CDROM)
 277
 278
 279#define EXT_3GBOX_NC                    0x01    /* 3G box not connected */
 280#define EXT_3GBOX_NOT_SET               0x02    /* 3G box not detected yet */
 281
 282
 283#define ECHOGAIN_MUTED          (-128)  /* Minimum possible gain */
 284#define ECHOGAIN_MINOUT         (-128)  /* Min output gain (dB) */
 285#define ECHOGAIN_MAXOUT         (6)     /* Max output gain (dB) */
 286#define ECHOGAIN_MININP         (-50)   /* Min input gain (0.5 dB) */
 287#define ECHOGAIN_MAXINP         (50)    /* Max input gain (0.5 dB) */
 288
 289#define PIPE_STATE_STOPPED      0       /* Pipe has been reset */
 290#define PIPE_STATE_PAUSED       1       /* Pipe has been stopped */
 291#define PIPE_STATE_STARTED      2       /* Pipe has been started */
 292#define PIPE_STATE_PENDING      3       /* Pipe has pending start */
 293
 294
 295/* Debug initialization */
 296#ifdef CONFIG_SND_DEBUG
 297#define DE_INIT(x) snd_printk x
 298#else
 299#define DE_INIT(x)
 300#endif
 301
 302/* Debug hw_params callbacks */
 303#ifdef CONFIG_SND_DEBUG
 304#define DE_HWP(x) snd_printk x
 305#else
 306#define DE_HWP(x)
 307#endif
 308
 309/* Debug normal activity (open, start, stop...) */
 310#ifdef CONFIG_SND_DEBUG
 311#define DE_ACT(x) snd_printk x
 312#else
 313#define DE_ACT(x)
 314#endif
 315
 316/* Debug midi activity */
 317#ifdef CONFIG_SND_DEBUG
 318#define DE_MID(x) snd_printk x
 319#else
 320#define DE_MID(x)
 321#endif
 322
 323
 324struct audiopipe {
 325        volatile u32 *dma_counter;      /* Commpage register that contains
 326                                         * the current dma position
 327                                         * (lower 32 bits only)
 328                                         */
 329        u32 last_counter;               /* The last position, which is used
 330                                         * to compute...
 331                                         */
 332        u32 position;                   /* ...the number of bytes tranferred
 333                                         * by the DMA engine, modulo the
 334                                         * buffer size
 335                                         */
 336        short index;                    /* Index of the first channel or <0
 337                                         * if hw is not configured yet
 338                                         */
 339        short interleave;
 340        struct snd_dma_buffer sgpage;   /* Room for the scatter-gather list */
 341        struct snd_pcm_hardware hw;
 342        struct snd_pcm_hw_constraint_list constr;
 343        short sglist_head;
 344        char state;                     /* pipe state */
 345};
 346
 347
 348struct audioformat {
 349        u8 interleave;                  /* How the data is arranged in memory:
 350                                         * mono = 1, stereo = 2, ...
 351                                         */
 352        u8 bits_per_sample;             /* 8, 16, 24, 32 (24 bits left aligned) */
 353        char mono_to_stereo;            /* Only used if interleave is 1 and
 354                                         * if this is an output pipe.
 355                                         */
 356        char data_are_bigendian;        /* 1 = big endian, 0 = little endian */
 357};
 358
 359
 360struct echoaudio {
 361        spinlock_t lock;
 362        struct snd_pcm_substream *substream[DSP_MAXPIPES];
 363        int last_period[DSP_MAXPIPES];
 364        struct mutex mode_mutex;
 365        u16 num_digital_modes, digital_mode_list[6];
 366        u16 num_clock_sources, clock_source_list[10];
 367        atomic_t opencount;
 368        struct snd_kcontrol *clock_src_ctl;
 369        struct snd_pcm *analog_pcm, *digital_pcm;
 370        struct snd_card *card;
 371        const char *card_name;
 372        struct pci_dev *pci;
 373        unsigned long dsp_registers_phys;
 374        struct resource *iores;
 375        struct snd_dma_buffer commpage_dma_buf;
 376        int irq;
 377#ifdef ECHOCARD_HAS_MIDI
 378        struct snd_rawmidi *rmidi;
 379        struct snd_rawmidi_substream *midi_in, *midi_out;
 380#endif
 381        struct timer_list timer;
 382        char tinuse;                            /* Timer in use */
 383        char midi_full;                         /* MIDI output buffer is full */
 384        char can_set_rate;
 385        char rate_set;
 386
 387        /* This stuff is used mainly by the lowlevel code */
 388        struct comm_page *comm_page;    /* Virtual address of the memory
 389                                         * seen by DSP
 390                                         */
 391        u32 pipe_alloc_mask;            /* Bitmask of allocated pipes */
 392        u32 pipe_cyclic_mask;           /* Bitmask of pipes with cyclic
 393                                         * buffers
 394                                         */
 395        u32 sample_rate;                /* Card sample rate in Hz */
 396        u8 digital_mode;                /* Current digital mode
 397                                         * (see DIGITAL_MODE_*)
 398                                         */
 399        u8 spdif_status;                /* Gina20, Darla20, Darla24 - only */
 400        u8 clock_state;                 /* Gina20, Darla20, Darla24 - only */
 401        u8 input_clock;                 /* Currently selected sample clock
 402                                         * source
 403                                         */
 404        u8 output_clock;                /* Layla20 only */
 405        char meters_enabled;            /* VU-meters status */
 406        char asic_loaded;               /* Set TRUE when ASIC loaded */
 407        char bad_board;                 /* Set TRUE if DSP won't load */
 408        char professional_spdif;        /* 0 = consumer; 1 = professional */
 409        char non_audio_spdif;           /* 3G - only */
 410        char digital_in_automute;       /* Gina24, Layla24, Mona - only */
 411        char has_phantom_power;
 412        char hasnt_input_nominal_level; /* Gina3G */
 413        char phantom_power;             /* Gina3G - only */
 414        char has_midi;
 415        char midi_input_enabled;
 416
 417#ifdef ECHOCARD_ECHO3G
 418        /* External module -dependent pipe and bus indexes */
 419        char px_digital_out, px_analog_in, px_digital_in, px_num;
 420        char bx_digital_out, bx_analog_in, bx_digital_in, bx_num;
 421#endif
 422
 423        char nominal_level[ECHO_MAXAUDIOPIPES]; /* True == -10dBV
 424                                                 * False == +4dBu */
 425        s8 input_gain[ECHO_MAXAUDIOINPUTS];     /* Input level -50..+50
 426                                                 * unit is 0.5dB */
 427        s8 output_gain[ECHO_MAXAUDIOOUTPUTS];   /* Output level -128..+6 dB
 428                                                 * (-128=muted) */
 429        s8 monitor_gain[ECHO_MAXAUDIOOUTPUTS][ECHO_MAXAUDIOINPUTS];
 430                /* -128..+6 dB */
 431        s8 vmixer_gain[ECHO_MAXAUDIOOUTPUTS][ECHO_MAXAUDIOOUTPUTS];
 432                /* -128..+6 dB */
 433
 434        u16 digital_modes;              /* Bitmask of supported modes
 435                                         * (see ECHOCAPS_HAS_DIGITAL_MODE_*) */
 436        u16 input_clock_types;          /* Suppoted input clock types */
 437        u16 output_clock_types;         /* Suppoted output clock types -
 438                                         * Layla20 only */
 439        u16 device_id, subdevice_id;
 440        u16 *dsp_code;                  /* Current DSP code loaded,
 441                                         * NULL if nothing loaded */
 442        const struct firmware *dsp_code_to_load;/* DSP code to load */
 443        const struct firmware *asic_code;       /* Current ASIC code */
 444        u32 comm_page_phys;                     /* Physical address of the
 445                                                 * memory seen by DSP */
 446        volatile u32 __iomem *dsp_registers;    /* DSP's register base */
 447        u32 active_mask;                        /* Chs. active mask or
 448                                                 * punks out */
 449
 450#ifdef ECHOCARD_HAS_MIDI
 451        u16 mtc_state;                          /* State for MIDI input parsing state machine */
 452        u8 midi_buffer[MIDI_IN_BUFFER_SIZE];
 453#endif
 454};
 455
 456
 457static int init_dsp_comm_page(struct echoaudio *chip);
 458static int init_line_levels(struct echoaudio *chip);
 459static int free_pipes(struct echoaudio *chip, struct audiopipe *pipe);
 460static int load_firmware(struct echoaudio *chip);
 461static int wait_handshake(struct echoaudio *chip);
 462static int send_vector(struct echoaudio *chip, u32 command);
 463static int get_firmware(const struct firmware **fw_entry,
 464                        const struct firmware *frm, struct echoaudio *chip);
 465static void free_firmware(const struct firmware *fw_entry);
 466
 467#ifdef ECHOCARD_HAS_MIDI
 468static int enable_midi_input(struct echoaudio *chip, char enable);
 469static int midi_service_irq(struct echoaudio *chip);
 470static int __devinit snd_echo_midi_create(struct snd_card *card,
 471                                          struct echoaudio *chip);
 472#endif
 473
 474
 475static inline void clear_handshake(struct echoaudio *chip)
 476{
 477        chip->comm_page->handshake = 0;
 478}
 479
 480static inline u32 get_dsp_register(struct echoaudio *chip, u32 index)
 481{
 482        return readl(&chip->dsp_registers[index]);
 483}
 484
 485static inline void set_dsp_register(struct echoaudio *chip, u32 index,
 486                                    u32 value)
 487{
 488        writel(value, &chip->dsp_registers[index]);
 489}
 490
 491
 492/* Pipe and bus indexes. PX_* and BX_* are defined as chip->px_* and chip->bx_*
 493for 3G cards because they depend on the external box. They are integer
 494constants for all other cards.
 495Never use those defines directly, use the following functions instead. */
 496
 497static inline int px_digital_out(const struct echoaudio *chip)
 498{
 499        return PX_DIGITAL_OUT;
 500}
 501
 502static inline int px_analog_in(const struct echoaudio *chip)
 503{
 504        return PX_ANALOG_IN;
 505}
 506
 507static inline int px_digital_in(const struct echoaudio *chip)
 508{
 509        return PX_DIGITAL_IN;
 510}
 511
 512static inline int px_num(const struct echoaudio *chip)
 513{
 514        return PX_NUM;
 515}
 516
 517static inline int bx_digital_out(const struct echoaudio *chip)
 518{
 519        return BX_DIGITAL_OUT;
 520}
 521
 522static inline int bx_analog_in(const struct echoaudio *chip)
 523{
 524        return BX_ANALOG_IN;
 525}
 526
 527static inline int bx_digital_in(const struct echoaudio *chip)
 528{
 529        return BX_DIGITAL_IN;
 530}
 531
 532static inline int bx_num(const struct echoaudio *chip)
 533{
 534        return BX_NUM;
 535}
 536
 537static inline int num_pipes_out(const struct echoaudio *chip)
 538{
 539        return px_analog_in(chip);
 540}
 541
 542static inline int num_pipes_in(const struct echoaudio *chip)
 543{
 544        return px_num(chip) - px_analog_in(chip);
 545}
 546
 547static inline int num_busses_out(const struct echoaudio *chip)
 548{
 549        return bx_analog_in(chip);
 550}
 551
 552static inline int num_busses_in(const struct echoaudio *chip)
 553{
 554        return bx_num(chip) - bx_analog_in(chip);
 555}
 556
 557static inline int num_analog_busses_out(const struct echoaudio *chip)
 558{
 559        return bx_digital_out(chip);
 560}
 561
 562static inline int num_analog_busses_in(const struct echoaudio *chip)
 563{
 564        return bx_digital_in(chip) - bx_analog_in(chip);
 565}
 566
 567static inline int num_digital_busses_out(const struct echoaudio *chip)
 568{
 569        return num_busses_out(chip) - num_analog_busses_out(chip);
 570}
 571
 572static inline int num_digital_busses_in(const struct echoaudio *chip)
 573{
 574        return num_busses_in(chip) - num_analog_busses_in(chip);
 575}
 576
 577/* The monitor array is a one-dimensional array; compute the offset
 578 * into the array */
 579static inline int monitor_index(const struct echoaudio *chip, int out, int in)
 580{
 581        return out * num_busses_in(chip) + in;
 582}
 583
 584
 585#ifndef pci_device
 586#define pci_device(chip) (&chip->pci->dev)
 587#endif
 588
 589
 590#endif /* _ECHOAUDIO_H_ */
 591