diff options
Diffstat (limited to 'sound/pci/echoaudio/gina24_dsp.c')
| -rw-r--r-- | sound/pci/echoaudio/gina24_dsp.c | 349 |
1 files changed, 349 insertions, 0 deletions
diff --git a/sound/pci/echoaudio/gina24_dsp.c b/sound/pci/echoaudio/gina24_dsp.c new file mode 100644 index 00000000..98f7cfa8 --- /dev/null +++ b/sound/pci/echoaudio/gina24_dsp.c @@ -0,0 +1,349 @@ +/**************************************************************************** + + 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 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) +{ + int err; + + DE_INIT(("init_hw() - Gina24\n")); + if (snd_BUG_ON((subdevice_id & 0xfff0) != GINA24)) + 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->input_clock_types = + ECHO_CLOCK_BIT_INTERNAL | ECHO_CLOCK_BIT_SPDIF | + ECHO_CLOCK_BIT_ESYNC | ECHO_CLOCK_BIT_ESYNC96 | + ECHO_CLOCK_BIT_ADAT; + + /* Gina24 comes in both '301 and '361 flavors */ + if (chip->device_id == DEVICE_ID_56361) { + chip->dsp_code_to_load = FW_GINA24_361_DSP; + chip->digital_modes = + ECHOCAPS_HAS_DIGITAL_MODE_SPDIF_RCA | + ECHOCAPS_HAS_DIGITAL_MODE_SPDIF_OPTICAL | + ECHOCAPS_HAS_DIGITAL_MODE_ADAT; + } else { + chip->dsp_code_to_load = FW_GINA24_301_DSP; + chip->digital_modes = + ECHOCAPS_HAS_DIGITAL_MODE_SPDIF_RCA | + ECHOCAPS_HAS_DIGITAL_MODE_SPDIF_OPTICAL | + ECHOCAPS_HAS_DIGITAL_MODE_ADAT | + ECHOCAPS_HAS_DIGITAL_MODE_SPDIF_CDROM; + } + + if ((err = load_firmware(chip)) < 0) + return err; + chip->bad_board = FALSE; + + DE_INIT(("init_hw done\n")); + return err; +} + + + +static int set_mixer_defaults(struct echoaudio *chip) +{ + chip->digital_mode = DIGITAL_MODE_SPDIF_RCA; + chip->professional_spdif = FALSE; + chip->digital_in_automute = TRUE; + return init_line_levels(chip); +} + + + +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 & GML_CLOCK_DETECT_BIT_SPDIF) + clock_bits |= ECHO_CLOCK_BIT_SPDIF; + + if (clocks_from_dsp & GML_CLOCK_DETECT_BIT_ADAT) + clock_bits |= ECHO_CLOCK_BIT_ADAT; + + if (clocks_from_dsp & GML_CLOCK_DETECT_BIT_ESYNC) + clock_bits |= ECHO_CLOCK_BIT_ESYNC | ECHO_CLOCK_BIT_ESYNC96; + + return clock_bits; +} + + + +/* Gina24 has an ASIC on the PCI card which must be loaded for anything +interesting to happen. */ +static int load_asic(struct echoaudio *chip) +{ + u32 control_reg; + int err; + short asic; + + if (chip->asic_loaded) + return 1; + + /* Give the DSP a few milliseconds to settle down */ + mdelay(10); + + /* Pick the correct ASIC for '301 or '361 Gina24 */ + if (chip->device_id == DEVICE_ID_56361) + asic = FW_GINA24_361_ASIC; + else + asic = FW_GINA24_301_ASIC; + + err = load_asic_generic(chip, DSP_FNC_LOAD_GINA24_ASIC, asic); + if (err < 0) + return err; + + chip->asic_code = asic; + + /* Now give the new ASIC a little time to set up */ + mdelay(10); + /* See if it worked */ + err = check_asic_status(chip); + + /* Set up the control register if the load succeeded - + 48 kHz, internal clock, S/PDIF RCA mode */ + if (!err) { + control_reg = GML_CONVERTER_ENABLE | GML_48KHZ; + err = write_control_reg(chip, control_reg, TRUE); + } + DE_INIT(("load_asic() done\n")); + return err; +} + + + +static int set_sample_rate(struct echoaudio *chip, u32 rate) +{ + u32 control_reg, clock; + + if (snd_BUG_ON(rate >= 50000 && + chip->digital_mode == DIGITAL_MODE_ADAT)) + return -EINVAL; + + /* Only set the clock for internal mode. */ + if (chip->input_clock != ECHO_CLOCK_INTERNAL) { + DE_ACT(("set_sample_rate: Cannot set sample rate - " + "clock not set to CLK_CLOCKININTERNAL\n")); + /* Save the rate anyhow */ + chip->comm_page->sample_rate = cpu_to_le32(rate); + chip->sample_rate = rate; + return 0; + } + + clock = 0; + + control_reg = le32_to_cpu(chip->comm_page->control_register); + control_reg &= GML_CLOCK_CLEAR_MASK & GML_SPDIF_RATE_CLEAR_MASK; + + switch (rate) { + case 96000: + clock = GML_96KHZ; + break; + case 88200: + clock = GML_88KHZ; + break; + case 48000: + clock = GML_48KHZ | GML_SPDIF_SAMPLE_RATE1; + break; + case 44100: + clock = GML_44KHZ; + /* Professional mode ? */ + if (control_reg & GML_SPDIF_PRO_MODE) + clock |= GML_SPDIF_SAMPLE_RATE0; + break; + case 32000: + clock = GML_32KHZ | GML_SPDIF_SAMPLE_RATE0 | + GML_SPDIF_SAMPLE_RATE1; + break; + case 22050: + clock = GML_22KHZ; + break; + case 16000: + clock = GML_16KHZ; + break; + case 11025: + clock = GML_11KHZ; + break; + case 8000: + clock = GML_8KHZ; + break; + default: + DE_ACT(("set_sample_rate: %d invalid!\n", rate)); + return -EINVAL; + } + + control_reg |= clock; + + chip->comm_page->sample_rate = cpu_to_le32(rate); /* ignored by the DSP */ + chip->sample_rate = rate; + DE_ACT(("set_sample_rate: %d clock %d\n", rate, clock)); + + return write_control_reg(chip, control_reg, FALSE); +} + + + +static int set_input_clock(struct echoaudio *chip, u16 clock) +{ + u32 control_reg, clocks_from_dsp; + + DE_ACT(("set_input_clock:\n")); + + /* Mask off the clock select bits */ + control_reg = le32_to_cpu(chip->comm_page->control_register) & + GML_CLOCK_CLEAR_MASK; + clocks_from_dsp = le32_to_cpu(chip->comm_page->status_clocks); + + switch (clock) { + case ECHO_CLOCK_INTERNAL: + DE_ACT(("Set Gina24 clock to INTERNAL\n")); + chip->input_clock = ECHO_CLOCK_INTERNAL; + return set_sample_rate(chip, chip->sample_rate); + case ECHO_CLOCK_SPDIF: + if (chip->digital_mode == DIGITAL_MODE_ADAT) + return -EAGAIN; + DE_ACT(("Set Gina24 clock to SPDIF\n")); + control_reg |= GML_SPDIF_CLOCK; + if (clocks_from_dsp & GML_CLOCK_DETECT_BIT_SPDIF96) + control_reg |= GML_DOUBLE_SPEED_MODE; + else + control_reg &= ~GML_DOUBLE_SPEED_MODE; + break; + case ECHO_CLOCK_ADAT: + if (chip->digital_mode != DIGITAL_MODE_ADAT) + return -EAGAIN; + DE_ACT(("Set Gina24 clock to ADAT\n")); + control_reg |= GML_ADAT_CLOCK; + control_reg &= ~GML_DOUBLE_SPEED_MODE; + break; + case ECHO_CLOCK_ESYNC: + DE_ACT(("Set Gina24 clock to ESYNC\n")); + control_reg |= GML_ESYNC_CLOCK; + control_reg &= ~GML_DOUBLE_SPEED_MODE; + break; + case ECHO_CLOCK_ESYNC96: + DE_ACT(("Set Gina24 clock to ESYNC96\n")); + control_reg |= GML_ESYNC_CLOCK | GML_DOUBLE_SPEED_MODE; + break; + default: + DE_ACT(("Input clock 0x%x not supported for Gina24\n", clock)); + return -EINVAL; + } + + chip->input_clock = clock; + return write_control_reg(chip, control_reg, TRUE); +} + + + +static int dsp_set_digital_mode(struct echoaudio *chip, u8 mode) +{ + u32 control_reg; + int err, incompatible_clock; + + /* Set clock to "internal" if it's not compatible with the new mode */ + incompatible_clock = FALSE; + switch (mode) { + case DIGITAL_MODE_SPDIF_OPTICAL: + case DIGITAL_MODE_SPDIF_CDROM: + case DIGITAL_MODE_SPDIF_RCA: + if (chip->input_clock == ECHO_CLOCK_ADAT) + incompatible_clock = TRUE; + break; + case DIGITAL_MODE_ADAT: + if (chip->input_clock == ECHO_CLOCK_SPDIF) + incompatible_clock = TRUE; + break; + default: + DE_ACT(("Digital mode not supported: %d\n", mode)); + return -EINVAL; + } + + spin_lock_irq(&chip->lock); + + if (incompatible_clock) { /* Switch to 48KHz, internal */ + chip->sample_rate = 48000; + set_input_clock(chip, ECHO_CLOCK_INTERNAL); + } + + /* Clear the current digital mode */ + control_reg = le32_to_cpu(chip->comm_page->control_register); + control_reg &= GML_DIGITAL_MODE_CLEAR_MASK; + + /* Tweak the control reg */ + switch (mode) { + case DIGITAL_MODE_SPDIF_OPTICAL: + control_reg |= GML_SPDIF_OPTICAL_MODE; + break; + case DIGITAL_MODE_SPDIF_CDROM: + /* '361 Gina24 cards do not have the S/PDIF CD-ROM mode */ + if (chip->device_id == DEVICE_ID_56301) + control_reg |= GML_SPDIF_CDROM_MODE; + break; + case DIGITAL_MODE_SPDIF_RCA: + /* GML_SPDIF_OPTICAL_MODE bit cleared */ + break; + case DIGITAL_MODE_ADAT: + control_reg |= GML_ADAT_MODE; + control_reg &= ~GML_DOUBLE_SPEED_MODE; + break; + } + + err = write_control_reg(chip, control_reg, TRUE); + spin_unlock_irq(&chip->lock); + if (err < 0) + return err; + chip->digital_mode = mode; + + DE_ACT(("set_digital_mode to %d\n", chip->digital_mode)); + return incompatible_clock; +} |