projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| dd7b254d GP |
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 IO\n")); | |
| da3cec35 TI |
42 | if (snd_BUG_ON((subdevice_id & 0xfff0) != INDIGO_IO)) |
| 43 | return -ENODEV; | |
| dd7b254d GP |
44 | |
| 45 | if ((err = init_dsp_comm_page(chip))) { | |
| 46 | DE_INIT(("init_hw - could not initialize DSP comm page\n")); | |
| 47 | return err; | |
| 48 | } | |
| 49 | ||
| 50 | chip->device_id = device_id; | |
| 51 | chip->subdevice_id = subdevice_id; | |
| 52 | chip->bad_board = TRUE; | |
| 53 | chip->dsp_code_to_load = &card_fw[FW_INDIGO_IO_DSP]; | |
| 54 | /* Since this card has no ASIC, mark it as loaded so everything | |
| 55 | works OK */ | |
| 56 | chip->asic_loaded = TRUE; | |
| 57 | chip->input_clock_types = ECHO_CLOCK_BIT_INTERNAL; | |
| 58 | ||
| 59 | if ((err = load_firmware(chip)) < 0) | |
| 60 | return err; | |
| 61 | chip->bad_board = FALSE; | |
| 62 | ||
| 63 | if ((err = init_line_levels(chip)) < 0) | |
| 64 | return err; | |
| 65 | ||
| 66 | /* Default routing of the virtual channels: all vchannels are routed | |
| 67 | to the stereo output */ | |
| 68 | set_vmixer_gain(chip, 0, 0, 0); | |
| 69 | set_vmixer_gain(chip, 1, 1, 0); | |
| 70 | set_vmixer_gain(chip, 0, 2, 0); | |
| 71 | set_vmixer_gain(chip, 1, 3, 0); | |
| 72 | set_vmixer_gain(chip, 0, 4, 0); | |
| 73 | set_vmixer_gain(chip, 1, 5, 0); | |
| 74 | set_vmixer_gain(chip, 0, 6, 0); | |
| 75 | set_vmixer_gain(chip, 1, 7, 0); | |
| 76 | err = update_vmixer_level(chip); | |
| 77 | ||
| 78 | DE_INIT(("init_hw done\n")); | |
| 79 | return err; | |
| 80 | } | |
| 81 | ||
| 82 | ||
| 83 | ||
| 84 | static u32 detect_input_clocks(const struct echoaudio *chip) | |
| 85 | { | |
| 86 | return ECHO_CLOCK_BIT_INTERNAL; | |
| 87 | } | |
| 88 | ||
| 89 | ||
| 90 | ||
| 91 | /* The IndigoIO has no ASIC. Just do nothing */ | |
| 92 | static int load_asic(struct echoaudio *chip) | |
| 93 | { | |
| 94 | return 0; | |
| 95 | } | |
| 96 | ||
| 97 | ||
| 98 | ||
| 99 | static int set_sample_rate(struct echoaudio *chip, u32 rate) | |
| 100 | { | |
| 101 | if (wait_handshake(chip)) | |
| 102 | return -EIO; | |
| 103 | ||
| 104 | chip->sample_rate = rate; | |
| 105 | chip->comm_page->sample_rate = cpu_to_le32(rate); | |
| 106 | clear_handshake(chip); | |
| 107 | return send_vector(chip, DSP_VC_UPDATE_CLOCKS); | |
| 108 | } | |
| 109 | ||
| 110 | ||
| 111 | ||
| 112 | /* This function routes the sound from a virtual channel to a real output */ | |
| 113 | static int set_vmixer_gain(struct echoaudio *chip, u16 output, u16 pipe, | |
| 114 | int gain) | |
| 115 | { | |
| 116 | int index; | |
| 117 | ||
| da3cec35 TI |
118 | if (snd_BUG_ON(pipe >= num_pipes_out(chip) || |
| 119 | output >= num_busses_out(chip))) | |
| 120 | return -EINVAL; | |
| dd7b254d GP |
121 | |
| 122 | if (wait_handshake(chip)) | |
| 123 | return -EIO; | |
| 124 | ||
| 125 | chip->vmixer_gain[output][pipe] = gain; | |
| 126 | index = output * num_pipes_out(chip) + pipe; | |
| 127 | chip->comm_page->vmixer[index] = gain; | |
| 128 | ||
| 129 | DE_ACT(("set_vmixer_gain: pipe %d, out %d = %d\n", pipe, output, gain)); | |
| 130 | return 0; | |
| 131 | } | |
| 132 | ||
| 133 | ||
| 134 | ||
| 135 | /* Tell the DSP to read and update virtual mixer levels in comm page. */ | |
| 136 | static int update_vmixer_level(struct echoaudio *chip) | |
| 137 | { | |
| 138 | if (wait_handshake(chip)) | |
| 139 | return -EIO; | |
| 140 | clear_handshake(chip); | |
| 141 | return send_vector(chip, DSP_VC_SET_VMIXER_GAIN); | |
| 142 | } | |
| 143 |