linux/sound/pci/echoaudio/mona_dsp.c

/****************************************************************************

   Copyright Echo Digital Audio Corporation (c) 1998 - 2004
   All rights reserved
   www.echoaudio.com

   This file is part of Echo Digital Audio's generic driver library.

   Echo Digital Audio's generic driver library 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.

   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.

   *************************************************************************

 Translation from C++ and adaptation for use in ALSA-Driver
 were made by Giuliano Pochini <[email protected]>

****************************************************************************/


static int write_control_reg(struct echoaudio *chip, u32 value, char force);
static int set_input_clock(struct echoaudio *chip, u16 clock);
static int set_professional_spdif(struct echoaudio *chip, char prof);
static int set_digital_mode(struct echoaudio *chip, u8 mode);
static int load_asic_generic(struct echoaudio *chip, u32 cmd, short asic);
static int check_asic_status(struct echoaudio *chip);


static int init_hw(struct echoaudio *chip, u16 device_id, u16 subdevice_id)
{ … }



static int set_mixer_defaults(struct echoaudio *chip)
{ … }



static u32 detect_input_clocks(const struct echoaudio *chip)
{ … }



/* Mona has an ASIC on the PCI card and another ASIC in the external box; 
both need to be loaded. */
static int load_asic(struct echoaudio *chip)
{ … }



/* Depending on what digital mode you want, Mona needs different ASICs
loaded.  This function checks the ASIC needed for the new mode and sees
if it matches the one already loaded. */
static int switch_asic(struct echoaudio *chip, char double_speed)
{ … }



static int set_sample_rate(struct echoaudio *chip, u32 rate)
{ … }



static int set_input_clock(struct echoaudio *chip, u16 clock)
{ … }



static int dsp_set_digital_mode(struct echoaudio *chip, u8 mode)
{ … }