diff options
Diffstat (limited to 'sound/pci/echoaudio/echo3g_dsp.c')
| -rw-r--r-- | sound/pci/echoaudio/echo3g_dsp.c | 131 |
1 files changed, 131 insertions, 0 deletions
diff --git a/sound/pci/echoaudio/echo3g_dsp.c b/sound/pci/echoaudio/echo3g_dsp.c new file mode 100644 index 000000000000..d26a1d1f3ed1 --- /dev/null +++ b/sound/pci/echoaudio/echo3g_dsp.c @@ -0,0 +1,131 @@ +/**************************************************************************** + + 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 load_asic(struct echoaudio *chip); +static int dsp_set_digital_mode(struct echoaudio *chip, u8 mode); +static int set_digital_mode(struct echoaudio *chip, u8 mode); +static int check_asic_status(struct echoaudio *chip); +static int set_sample_rate(struct echoaudio *chip, u32 rate); +static int set_input_clock(struct echoaudio *chip, u16 clock); +static int set_professional_spdif(struct echoaudio *chip, char prof); +static int set_phantom_power(struct echoaudio *chip, char on); +static int write_control_reg(struct echoaudio *chip, u32 ctl, u32 frq, + char force); + +#include <linux/irq.h> + +static int init_hw(struct echoaudio *chip, u16 device_id, u16 subdevice_id) +{ + int err; + + local_irq_enable(); + DE_INIT(("init_hw() - Echo3G\n")); + snd_assert((subdevice_id & 0xfff0) == ECHO3G, return -ENODEV); + + if ((err = init_dsp_comm_page(chip))) { + DE_INIT(("init_hw - could not initialize DSP comm page\n")); + return err; + } + + chip->comm_page->e3g_frq_register = + __constant_cpu_to_le32((E3G_MAGIC_NUMBER / 48000) - 2); + chip->device_id = device_id; + chip->subdevice_id = subdevice_id; + chip->bad_board = TRUE; + chip->has_midi = TRUE; + chip->dsp_code_to_load = &card_fw[FW_ECHO3G_DSP]; + + /* Load the DSP code and the ASIC on the PCI card and get + what type of external box is attached */ + err = load_firmware(chip); + + if (err < 0) { + return err; + } else if (err == E3G_GINA3G_BOX_TYPE) { + chip->input_clock_types = ECHO_CLOCK_BIT_INTERNAL | + ECHO_CLOCK_BIT_SPDIF | + ECHO_CLOCK_BIT_ADAT; + chip->card_name = "Gina3G"; + chip->px_digital_out = chip->bx_digital_out = 6; + chip->px_analog_in = chip->bx_analog_in = 14; + chip->px_digital_in = chip->bx_digital_in = 16; + chip->px_num = chip->bx_num = 24; + chip->has_phantom_power = TRUE; + chip->hasnt_input_nominal_level = TRUE; + } else if (err == E3G_LAYLA3G_BOX_TYPE) { + chip->input_clock_types = ECHO_CLOCK_BIT_INTERNAL | + ECHO_CLOCK_BIT_SPDIF | + ECHO_CLOCK_BIT_ADAT | + ECHO_CLOCK_BIT_WORD; + chip->card_name = "Layla3G"; + chip->px_digital_out = chip->bx_digital_out = 8; + chip->px_analog_in = chip->bx_analog_in = 16; + chip->px_digital_in = chip->bx_digital_in = 24; + chip->px_num = chip->bx_num = 32; + } else { + return -ENODEV; + } + + chip->digital_modes = ECHOCAPS_HAS_DIGITAL_MODE_SPDIF_RCA | + ECHOCAPS_HAS_DIGITAL_MODE_SPDIF_OPTICAL | + ECHOCAPS_HAS_DIGITAL_MODE_ADAT; + chip->digital_mode = DIGITAL_MODE_SPDIF_RCA; + chip->professional_spdif = FALSE; + chip->non_audio_spdif = FALSE; + chip->bad_board = FALSE; + + if ((err = init_line_levels(chip)) < 0) + return err; + err = set_digital_mode(chip, DIGITAL_MODE_SPDIF_RCA); + snd_assert(err >= 0, return err); + err = set_phantom_power(chip, 0); + snd_assert(err >= 0, return err); + err = set_professional_spdif(chip, TRUE); + + DE_INIT(("init_hw done\n")); + return err; +} + + + +static int set_phantom_power(struct echoaudio *chip, char on) +{ + u32 control_reg = le32_to_cpu(chip->comm_page->control_register); + + if (on) + control_reg |= E3G_PHANTOM_POWER; + else + control_reg &= ~E3G_PHANTOM_POWER; + + chip->phantom_power = on; + return write_control_reg(chip, control_reg, + le32_to_cpu(chip->comm_page->e3g_frq_register), + 0); +} |