diff options
author | Giuliano Pochini <pochini@shiny.it> | 2006-06-28 11:53:41 (GMT) |
---|---|---|
committer | Jaroslav Kysela <perex@suse.cz> | 2006-06-28 17:31:20 (GMT) |
commit | dd7b254d8dd3a9528f423ac3bf875e6f0c8da561 (patch) | |
tree | 923ac13451c796b730f21c7260beba9f74acff63 /sound/pci/echoaudio/darla20_dsp.c | |
parent | cb9d24e4349013628259b5fee97e692173731b07 (diff) | |
download | linux-fsl-qoriq-dd7b254d8dd3a9528f423ac3bf875e6f0c8da561.tar.xz |
[ALSA] Add echoaudio sound drivers
From: Giuliano Pochini <pochini@shiny.it>Add echoaudio sound drivers (darla20, darla24, echo3g, gina20, gina24,
indigo, indigodj, indigoio, layla20, lala24, mia, mona)
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
Diffstat (limited to 'sound/pci/echoaudio/darla20_dsp.c')
-rw-r--r-- | sound/pci/echoaudio/darla20_dsp.c | 125 |
1 files changed, 125 insertions, 0 deletions
diff --git a/sound/pci/echoaudio/darla20_dsp.c b/sound/pci/echoaudio/darla20_dsp.c new file mode 100644 index 0000000..4159e3b --- /dev/null +++ b/sound/pci/echoaudio/darla20_dsp.c @@ -0,0 +1,125 @@ +/*************************************************************************** + + 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 <pochini@shiny.it> + +****************************************************************************/ + + +static int init_hw(struct echoaudio *chip, u16 device_id, u16 subdevice_id) +{ + int err; + + DE_INIT(("init_hw() - Darla20\n")); + snd_assert((subdevice_id & 0xfff0) == DARLA20, return -ENODEV); + + if ((err = init_dsp_comm_page(chip))) { + DE_INIT(("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 = &card_fw[FW_DARLA20_DSP]; + chip->spdif_status = GD_SPDIF_STATUS_UNDEF; + chip->clock_state = GD_CLOCK_UNDEF; + /* 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; + + if ((err = load_firmware(chip)) < 0) + return err; + chip->bad_board = FALSE; + + if ((err = init_line_levels(chip)) < 0) + return err; + + DE_INIT(("init_hw done\n")); + return err; +} + + + +/* The Darla20 has no external clock sources */ +static u32 detect_input_clocks(const struct echoaudio *chip) +{ + return ECHO_CLOCK_BIT_INTERNAL; +} + + + +/* The Darla20 has no ASIC. Just do nothing */ +static int load_asic(struct echoaudio *chip) +{ + return 0; +} + + + +static int set_sample_rate(struct echoaudio *chip, u32 rate) +{ + u8 clock_state, spdif_status; + + if (wait_handshake(chip)) + return -EIO; + + switch (rate) { + case 44100: + clock_state = GD_CLOCK_44; + spdif_status = GD_SPDIF_STATUS_44; + break; + case 48000: + clock_state = GD_CLOCK_48; + spdif_status = GD_SPDIF_STATUS_48; + break; + default: + clock_state = GD_CLOCK_NOCHANGE; + spdif_status = GD_SPDIF_STATUS_NOCHANGE; + break; + } + + if (chip->clock_state == clock_state) + clock_state = GD_CLOCK_NOCHANGE; + if (spdif_status == chip->spdif_status) + spdif_status = GD_SPDIF_STATUS_NOCHANGE; + + chip->comm_page->sample_rate = cpu_to_le32(rate); + chip->comm_page->gd_clock_state = clock_state; + chip->comm_page->gd_spdif_status = spdif_status; + chip->comm_page->gd_resampler_state = 3; /* magic number - should always be 3 */ + + /* Save the new audio state if it changed */ + if (clock_state != GD_CLOCK_NOCHANGE) + chip->clock_state = clock_state; + if (spdif_status != GD_SPDIF_STATUS_NOCHANGE) + chip->spdif_status = spdif_status; + chip->sample_rate = rate; + + clear_handshake(chip); + return send_vector(chip, DSP_VC_SET_GD_AUDIO_STATE); +} |