Giuliano Pochini | dd7b254 | 2006-06-28 13:53:41 +0200 | [diff] [blame^] | 1 | /**************************************************************************** |
| 2 | |
| 3 | Copyright Echo Digital Audio Corporation (c) 1998 - 2004 |
| 4 | All rights reserved |
| 5 | www.echoaudio.com |
| 6 | |
| 7 | This file is part of Echo Digital Audio's generic driver library. |
| 8 | |
| 9 | Echo Digital Audio's generic driver library is free software; |
| 10 | you can redistribute it and/or modify it under the terms of |
| 11 | the GNU General Public License as published by the Free Software |
| 12 | Foundation. |
| 13 | |
| 14 | This program is distributed in the hope that it will be useful, |
| 15 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 17 | GNU General Public License for more details. |
| 18 | |
| 19 | You should have received a copy of the GNU General Public License |
| 20 | along with this program; if not, write to the Free Software |
| 21 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, |
| 22 | MA 02111-1307, USA. |
| 23 | |
| 24 | ************************************************************************* |
| 25 | |
| 26 | Translation from C++ and adaptation for use in ALSA-Driver |
| 27 | were made by Giuliano Pochini <pochini@shiny.it> |
| 28 | |
| 29 | ****************************************************************************/ |
| 30 | |
| 31 | |
| 32 | static int set_vmixer_gain(struct echoaudio *chip, u16 output, u16 pipe, |
| 33 | int gain); |
| 34 | static int update_vmixer_level(struct echoaudio *chip); |
| 35 | |
| 36 | |
| 37 | static int init_hw(struct echoaudio *chip, u16 device_id, u16 subdevice_id) |
| 38 | { |
| 39 | int err; |
| 40 | |
| 41 | DE_INIT(("init_hw() - Indigo DJ\n")); |
| 42 | snd_assert((subdevice_id & 0xfff0) == INDIGO_DJ, return -ENODEV); |
| 43 | |
| 44 | if ((err = init_dsp_comm_page(chip))) { |
| 45 | DE_INIT(("init_hw - could not initialize DSP comm page\n")); |
| 46 | return err; |
| 47 | } |
| 48 | |
| 49 | chip->device_id = device_id; |
| 50 | chip->subdevice_id = subdevice_id; |
| 51 | chip->bad_board = TRUE; |
| 52 | chip->dsp_code_to_load = &card_fw[FW_INDIGO_DJ_DSP]; |
| 53 | /* Since this card has no ASIC, mark it as loaded so everything |
| 54 | works OK */ |
| 55 | chip->asic_loaded = TRUE; |
| 56 | chip->input_clock_types = ECHO_CLOCK_BIT_INTERNAL; |
| 57 | |
| 58 | if ((err = load_firmware(chip)) < 0) |
| 59 | return err; |
| 60 | chip->bad_board = FALSE; |
| 61 | |
| 62 | if ((err = init_line_levels(chip)) < 0) |
| 63 | return err; |
| 64 | |
| 65 | /* Default routing of the virtual channels: vchannels 0-3 and |
| 66 | vchannels 4-7 are routed to real channels 0-4 */ |
| 67 | set_vmixer_gain(chip, 0, 0, 0); |
| 68 | set_vmixer_gain(chip, 1, 1, 0); |
| 69 | set_vmixer_gain(chip, 2, 2, 0); |
| 70 | set_vmixer_gain(chip, 3, 3, 0); |
| 71 | set_vmixer_gain(chip, 0, 4, 0); |
| 72 | set_vmixer_gain(chip, 1, 5, 0); |
| 73 | set_vmixer_gain(chip, 2, 6, 0); |
| 74 | set_vmixer_gain(chip, 3, 7, 0); |
| 75 | err = update_vmixer_level(chip); |
| 76 | |
| 77 | DE_INIT(("init_hw done\n")); |
| 78 | return err; |
| 79 | } |
| 80 | |
| 81 | |
| 82 | |
| 83 | static u32 detect_input_clocks(const struct echoaudio *chip) |
| 84 | { |
| 85 | return ECHO_CLOCK_BIT_INTERNAL; |
| 86 | } |
| 87 | |
| 88 | |
| 89 | |
| 90 | /* The IndigoDJ has no ASIC. Just do nothing */ |
| 91 | static int load_asic(struct echoaudio *chip) |
| 92 | { |
| 93 | return 0; |
| 94 | } |
| 95 | |
| 96 | |
| 97 | |
| 98 | static int set_sample_rate(struct echoaudio *chip, u32 rate) |
| 99 | { |
| 100 | u32 control_reg; |
| 101 | |
| 102 | switch (rate) { |
| 103 | case 96000: |
| 104 | control_reg = MIA_96000; |
| 105 | break; |
| 106 | case 88200: |
| 107 | control_reg = MIA_88200; |
| 108 | break; |
| 109 | case 48000: |
| 110 | control_reg = MIA_48000; |
| 111 | break; |
| 112 | case 44100: |
| 113 | control_reg = MIA_44100; |
| 114 | break; |
| 115 | case 32000: |
| 116 | control_reg = MIA_32000; |
| 117 | break; |
| 118 | default: |
| 119 | DE_ACT(("set_sample_rate: %d invalid!\n", rate)); |
| 120 | return -EINVAL; |
| 121 | } |
| 122 | |
| 123 | /* Set the control register if it has changed */ |
| 124 | if (control_reg != le32_to_cpu(chip->comm_page->control_register)) { |
| 125 | if (wait_handshake(chip)) |
| 126 | return -EIO; |
| 127 | |
| 128 | chip->comm_page->sample_rate = cpu_to_le32(rate); /* ignored by the DSP */ |
| 129 | chip->comm_page->control_register = cpu_to_le32(control_reg); |
| 130 | chip->sample_rate = rate; |
| 131 | |
| 132 | clear_handshake(chip); |
| 133 | return send_vector(chip, DSP_VC_UPDATE_CLOCKS); |
| 134 | } |
| 135 | return 0; |
| 136 | } |
| 137 | |
| 138 | |
| 139 | |
| 140 | /* This function routes the sound from a virtual channel to a real output */ |
| 141 | static int set_vmixer_gain(struct echoaudio *chip, u16 output, u16 pipe, |
| 142 | int gain) |
| 143 | { |
| 144 | int index; |
| 145 | |
| 146 | snd_assert(pipe < num_pipes_out(chip) && |
| 147 | output < num_busses_out(chip), return -EINVAL); |
| 148 | |
| 149 | if (wait_handshake(chip)) |
| 150 | return -EIO; |
| 151 | |
| 152 | chip->vmixer_gain[output][pipe] = gain; |
| 153 | index = output * num_pipes_out(chip) + pipe; |
| 154 | chip->comm_page->vmixer[index] = gain; |
| 155 | |
| 156 | DE_ACT(("set_vmixer_gain: pipe %d, out %d = %d\n", pipe, output, gain)); |
| 157 | return 0; |
| 158 | } |
| 159 | |
| 160 | |
| 161 | |
| 162 | /* Tell the DSP to read and update virtual mixer levels in comm page. */ |
| 163 | static int update_vmixer_level(struct echoaudio *chip) |
| 164 | { |
| 165 | if (wait_handshake(chip)) |
| 166 | return -EIO; |
| 167 | clear_handshake(chip); |
| 168 | return send_vector(chip, DSP_VC_SET_VMIXER_GAIN); |
| 169 | } |
| 170 | |