darla20.c

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/*
 *  ALSA driver for Echoaudio soundcards.
 *  Copyright (C) 2003-2004 Giuliano Pochini <pochini@shiny.it>
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; version 2 of the License.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 */

#define ECHOGALS_FAMILY
#define ECHOCARD_DARLA20
#define ECHOCARD_NAME "Darla20"
#define ECHOCARD_HAS_MONITOR

/* Pipe indexes */
#define PX_ANALOG_OUT   0   /* 8 */
#define PX_DIGITAL_OUT  8   /* 0 */
#define PX_ANALOG_IN    8   /* 2 */
#define PX_DIGITAL_IN   10  /* 0 */
#define PX_NUM      10

/* Bus indexes */
#define BX_ANALOG_OUT   0   /* 8 */
#define BX_DIGITAL_OUT  8   /* 0 */
#define BX_ANALOG_IN    8   /* 2 */
#define BX_DIGITAL_IN   10  /* 0 */
#define BX_NUM      10


#include <linux/delay.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/pci.h>
#include <linux/module.h>
#include <linux/firmware.h>
#include <linux/slab.h>
#include <sound/core.h>
#include <sound/info.h>
#include <sound/control.h>
#include <sound/tlv.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/asoundef.h>
#include <sound/initval.h>
#include <asm/io.h>
#include <linux/atomic.h>
#include "echoaudio.h"

MODULE_FIRMWARE("ea/darla20_dsp.fw");

#define FW_DARLA20_DSP  0

static const struct firmware card_fw[] = {
    {0, "darla20_dsp.fw"}
};

static DEFINE_PCI_DEVICE_TABLE(snd_echo_ids) = {
    {0x1057, 0x1801, 0xECC0, 0x0010, 0, 0, 0},  /* DSP 56301 Darla20 rev.0 */
    {0,}
};

static struct snd_pcm_hardware pcm_hardware_skel = {
    .info = SNDRV_PCM_INFO_MMAP |
        SNDRV_PCM_INFO_INTERLEAVED |
        SNDRV_PCM_INFO_BLOCK_TRANSFER |
        SNDRV_PCM_INFO_MMAP_VALID |
        SNDRV_PCM_INFO_PAUSE |
        SNDRV_PCM_INFO_SYNC_START,
    .formats =  SNDRV_PCM_FMTBIT_U8 |
            SNDRV_PCM_FMTBIT_S16_LE |
            SNDRV_PCM_FMTBIT_S24_3LE |
            SNDRV_PCM_FMTBIT_S32_LE |
            SNDRV_PCM_FMTBIT_S32_BE,
    .rates = SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000,
    .rate_min = 44100,
    .rate_max = 48000,
    .channels_min = 1,
    .channels_max = 2,
    .buffer_bytes_max = 262144,
    .period_bytes_min = 32,
    .period_bytes_max = 131072,
    .periods_min = 2,
    .periods_max = 220,
    /* One page (4k) contains 512 instructions. I don't know if the hw
    supports lists longer than this. In this case periods_max=220 is a
    safe limit to make sure the list never exceeds 512 instructions. */
};


#include "darla20_dsp.c"
#include "echoaudio_dsp.c"
#include "echoaudio.c"