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.
if (snd_BUG_ON((subdevice_id & 0xfff0) != INDIGO)) return -ENODEV;
err = init_dsp_comm_page(chip); if (err) {
dev_err(chip->card->dev, "init_hw - could not initialize DSP comm page\n"); return err;
}
chip->device_id = device_id;
chip->subdevice_id = subdevice_id;
chip->bad_board = true;
chip->dsp_code_to_load = FW_INDIGO_DSP; /* Since this card has no ASIC, mark it as loaded so everything
works OK */
chip->asic_loaded = true;
chip->input_clock_types = ECHO_CLOCK_BIT_INTERNAL;
switch (rate) { case 96000:
control_reg = MIA_96000; break; case 88200:
control_reg = MIA_88200; break; case 48000:
control_reg = MIA_48000; break; case 44100:
control_reg = MIA_44100; break; case 32000:
control_reg = MIA_32000; break; default:
dev_err(chip->card->dev, "set_sample_rate: %d invalid!\n", rate); return -EINVAL;
}
/* Set the control register if it has changed */ if (control_reg != le32_to_cpu(chip->comm_page->control_register)) { if (wait_handshake(chip)) return -EIO;
chip->comm_page->sample_rate = cpu_to_le32(rate); /* ignored by the DSP */
chip->comm_page->control_register = cpu_to_le32(control_reg);
chip->sample_rate = rate;
/* This function routes the sound from a virtual channel to a real output */ staticint set_vmixer_gain(struct echoaudio *chip, u16 output, u16 pipe, int gain)
{ int index;
if (snd_BUG_ON(pipe >= num_pipes_out(chip) ||
output >= num_busses_out(chip))) return -EINVAL;
/* Tell the DSP to read and update virtual mixer levels in comm page. */ staticint update_vmixer_level(struct echoaudio *chip)
{ if (wait_handshake(chip)) return -EIO;
clear_handshake(chip); return send_vector(chip, DSP_VC_SET_VMIXER_GAIN);
}
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