diff options
author | Linus Torvalds <torvalds@g5.osdl.org> | 2006-06-29 11:53:31 -0700 |
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committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-06-29 11:53:31 -0700 |
commit | 0950c358ee8e969fce45ba363ca1deaf211e57b0 (patch) | |
tree | 4c3b66e8457e1568aa26696d268e0e9c264382cb /sound/pci/echoaudio/mia_dsp.c | |
parent | 3aa590c6b7c89d844f81c2e96f295cf2c6967773 (diff) | |
parent | 8caf7aa26e0797e5706043f94c491acd1a08636a (diff) |
Merge master.kernel.org:/pub/scm/linux/kernel/git/perex/alsa
* master.kernel.org:/pub/scm/linux/kernel/git/perex/alsa:
[ALSA] echoaudio - Remove kfree_nocheck()
[ALSA] echoaudio - Fix Makefile
[ALSA] Add Intel D965 board support
[ALSA] Fix/add support of Realtek ALC883 / ALC888 and ALC861 codecs
[ALSA] Fix a typo in echoaudio/midi.c
[ALSA] snd-aoa: enable dual-edge in GPIOs
[ALSA] snd-aoa: support iMac G5 iSight
[ALSA] snd-aoa: not experimental
[ALSA] Add echoaudio sound drivers
[ALSA] ak4xxx-adda - Code clean-up
[ALSA] Remove CONFIG_EXPERIMENTAL from intel8x0m driver
[ALSA] Stereo controls for M-Audio Revolution cards
[ALSA] Fix misuse of __list_add() in seq_ports.c
[ALSA] hda-codec - Add model entry for Samsung X60 Chane
[ALSA] make CONFIG_SND_DYNAMIC_MINORS non-experimental
[ALSA] Fix wrong dependencies of snd-aoa driver
[ALSA] fix build failure due to snd-aoa
[ALSA] AD1888 mixer controls for DC mode
[ALSA] Suppress irq handler mismatch messages in ALSA ISA drivers
[ALSA] usb-audio support for Turtle Beach Roadie
Diffstat (limited to 'sound/pci/echoaudio/mia_dsp.c')
-rw-r--r-- | sound/pci/echoaudio/mia_dsp.c | 229 |
1 files changed, 229 insertions, 0 deletions
diff --git a/sound/pci/echoaudio/mia_dsp.c b/sound/pci/echoaudio/mia_dsp.c new file mode 100644 index 00000000000..891c7051909 --- /dev/null +++ b/sound/pci/echoaudio/mia_dsp.c @@ -0,0 +1,229 @@ +/**************************************************************************** + + 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 set_input_clock(struct echoaudio *chip, u16 clock); +static int set_professional_spdif(struct echoaudio *chip, char prof); +static int update_flags(struct echoaudio *chip); +static int set_vmixer_gain(struct echoaudio *chip, u16 output, u16 pipe, + int gain); +static int update_vmixer_level(struct echoaudio *chip); + + +static int init_hw(struct echoaudio *chip, u16 device_id, u16 subdevice_id) +{ + int err; + + DE_INIT(("init_hw() - Mia\n")); + snd_assert((subdevice_id & 0xfff0) == MIA, 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_MIA_DSP]; + /* Since this card has no ASIC, mark it as loaded so everything + works OK */ + chip->asic_loaded = TRUE; + if ((subdevice_id & 0x0000f) == MIA_MIDI_REV) + chip->has_midi = TRUE; + chip->input_clock_types = ECHO_CLOCK_BIT_INTERNAL | + ECHO_CLOCK_BIT_SPDIF; + + if ((err = load_firmware(chip)) < 0) + return err; + chip->bad_board = FALSE; + + if ((err = init_line_levels(chip))) + return err; + + /* Default routing of the virtual channels: vchannels 0-3 go to analog + outputs and vchannels 4-7 go to S/PDIF outputs */ + set_vmixer_gain(chip, 0, 0, 0); + set_vmixer_gain(chip, 1, 1, 0); + set_vmixer_gain(chip, 0, 2, 0); + set_vmixer_gain(chip, 1, 3, 0); + set_vmixer_gain(chip, 2, 4, 0); + set_vmixer_gain(chip, 3, 5, 0); + set_vmixer_gain(chip, 2, 6, 0); + set_vmixer_gain(chip, 3, 7, 0); + err = update_vmixer_level(chip); + + DE_INIT(("init_hw done\n")); + return err; +} + + + +static u32 detect_input_clocks(const struct echoaudio *chip) +{ + u32 clocks_from_dsp, clock_bits; + + /* Map the DSP clock detect bits to the generic driver clock + detect bits */ + clocks_from_dsp = le32_to_cpu(chip->comm_page->status_clocks); + + clock_bits = ECHO_CLOCK_BIT_INTERNAL; + + if (clocks_from_dsp & GLDM_CLOCK_DETECT_BIT_SPDIF) + clock_bits |= ECHO_CLOCK_BIT_SPDIF; + + return clock_bits; +} + + + +/* The Mia 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) +{ + u32 control_reg; + + 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: + DE_ACT(("set_sample_rate: %d invalid!\n", rate)); + return -EINVAL; + } + + /* Override the clock setting if this Mia is set to S/PDIF clock */ + if (chip->input_clock == ECHO_CLOCK_SPDIF) + control_reg |= MIA_SPDIF; + + /* 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; + + clear_handshake(chip); + return send_vector(chip, DSP_VC_UPDATE_CLOCKS); + } + return 0; +} + + + +static int set_input_clock(struct echoaudio *chip, u16 clock) +{ + DE_ACT(("set_input_clock(%d)\n", clock)); + snd_assert(clock == ECHO_CLOCK_INTERNAL || clock == ECHO_CLOCK_SPDIF, + return -EINVAL); + + chip->input_clock = clock; + return set_sample_rate(chip, chip->sample_rate); +} + + + +/* This function routes the sound from a virtual channel to a real output */ +static int set_vmixer_gain(struct echoaudio *chip, u16 output, u16 pipe, + int gain) +{ + int index; + + snd_assert(pipe < num_pipes_out(chip) && + output < num_busses_out(chip), return -EINVAL); + + if (wait_handshake(chip)) + return -EIO; + + chip->vmixer_gain[output][pipe] = gain; + index = output * num_pipes_out(chip) + pipe; + chip->comm_page->vmixer[index] = gain; + + DE_ACT(("set_vmixer_gain: pipe %d, out %d = %d\n", pipe, output, gain)); + return 0; +} + + + +/* Tell the DSP to read and update virtual mixer levels in comm page. */ +static int update_vmixer_level(struct echoaudio *chip) +{ + if (wait_handshake(chip)) + return -EIO; + clear_handshake(chip); + return send_vector(chip, DSP_VC_SET_VMIXER_GAIN); +} + + + +/* Tell the DSP to reread the flags from the comm page */ +static int update_flags(struct echoaudio *chip) +{ + if (wait_handshake(chip)) + return -EIO; + clear_handshake(chip); + return send_vector(chip, DSP_VC_UPDATE_FLAGS); +} + + + +static int set_professional_spdif(struct echoaudio *chip, char prof) +{ + DE_ACT(("set_professional_spdif %d\n", prof)); + if (prof) + chip->comm_page->flags |= + __constant_cpu_to_le32(DSP_FLAG_PROFESSIONAL_SPDIF); + else + chip->comm_page->flags &= + ~__constant_cpu_to_le32(DSP_FLAG_PROFESSIONAL_SPDIF); + chip->professional_spdif = prof; + return update_flags(chip); +} + |