LXR linux/sound/pci/echoaudio/echo3g

   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
  31static int load_asic(struct echoaudio *chip);
  32static int dsp_set_digital_mode(struct echoaudio *chip, u8 mode);
  33static int set_digital_mode(struct echoaudio *chip, u8 mode);
  34static int check_asic_status(struct echoaudio *chip);
  35static int set_sample_rate(struct echoaudio *chip, u32 rate);
  36static int set_input_clock(struct echoaudio *chip, u16 clock);
  37static int set_professional_spdif(struct echoaudio *chip, char prof);
  38static int set_phantom_power(struct echoaudio *chip, char on);
  39static int write_control_reg(struct echoaudio *chip, u32 ctl, u32 frq,
  40                             char force);
  41
  42#include <linux/interrupt.h>
  43
  44static int init_hw(struct echoaudio *chip, u16 device_id, u16 subdevice_id)
  45{
  46        int err;
  47
  48        local_irq_enable();
  49        DE_INIT(("init_hw() - Echo3G\n"));
  50        if (snd_BUG_ON((subdevice_id & 0xfff0) != ECHO3G))
  51                return -ENODEV;
  52
  53        if ((err = init_dsp_comm_page(chip))) {
  54                DE_INIT(("init_hw - could not initialize DSP comm page\n"));
  55                return err;
  56        }
  57
  58        chip->comm_page->e3g_frq_register =
  59                cpu_to_le32((E3G_MAGIC_NUMBER / 48000) - 2);
  60        chip->device_id = device_id;
  61        chip->subdevice_id = subdevice_id;
  62        chip->bad_board = TRUE;
  63        chip->has_midi = TRUE;
  64        chip->dsp_code_to_load = FW_ECHO3G_DSP;
  65
  66        /* Load the DSP code and the ASIC on the PCI card and get
  67        what type of external box is attached */
  68        err = load_firmware(chip);
  69
  70        if (err < 0) {
  71                return err;
  72        } else if (err == E3G_GINA3G_BOX_TYPE) {
  73                chip->input_clock_types =       ECHO_CLOCK_BIT_INTERNAL |
  74                                                ECHO_CLOCK_BIT_SPDIF |
  75                                                ECHO_CLOCK_BIT_ADAT;
  76                chip->card_name = "Gina3G";
  77                chip->px_digital_out = chip->bx_digital_out = 6;
  78                chip->px_analog_in = chip->bx_analog_in = 14;
  79                chip->px_digital_in = chip->bx_digital_in = 16;
  80                chip->px_num = chip->bx_num = 24;
  81                chip->has_phantom_power = TRUE;
  82                chip->hasnt_input_nominal_level = TRUE;
  83        } else if (err == E3G_LAYLA3G_BOX_TYPE) {
  84                chip->input_clock_types =       ECHO_CLOCK_BIT_INTERNAL |
  85                                                ECHO_CLOCK_BIT_SPDIF |
  86                                                ECHO_CLOCK_BIT_ADAT |
  87                                                ECHO_CLOCK_BIT_WORD;
  88                chip->card_name = "Layla3G";
  89                chip->px_digital_out = chip->bx_digital_out = 8;
  90                chip->px_analog_in = chip->bx_analog_in = 16;
  91                chip->px_digital_in = chip->bx_digital_in = 24;
  92                chip->px_num = chip->bx_num = 32;
  93        } else {
  94                return -ENODEV;
  95        }
  96
  97        chip->digital_modes =   ECHOCAPS_HAS_DIGITAL_MODE_SPDIF_RCA |
  98                                ECHOCAPS_HAS_DIGITAL_MODE_SPDIF_OPTICAL |
  99                                ECHOCAPS_HAS_DIGITAL_MODE_ADAT;
 100
 101        DE_INIT(("init_hw done\n"));
 102        return err;
 103}
 104
 105
 106
 107static int set_mixer_defaults(struct echoaudio *chip)
 108{
 109        chip->digital_mode = DIGITAL_MODE_SPDIF_RCA;
 110        chip->professional_spdif = FALSE;
 111        chip->non_audio_spdif = FALSE;
 112        chip->bad_board = FALSE;
 113        chip->phantom_power = FALSE;
 114        return init_line_levels(chip);
 115}
 116
 117
 118
 119static int set_phantom_power(struct echoaudio *chip, char on)
 120{
 121        u32 control_reg = le32_to_cpu(chip->comm_page->control_register);
 122
 123        if (on)
 124                control_reg |= E3G_PHANTOM_POWER;
 125        else
 126                control_reg &= ~E3G_PHANTOM_POWER;
 127
 128        chip->phantom_power = on;
 129        return write_control_reg(chip, control_reg,
 130                                 le32_to_cpu(chip->comm_page->e3g_frq_register),
 131                                 0);
 132}
 133