projects / deliverable / linux.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 init_hw(struct echoaudio *chip, u16 device_id, u16 subdevice_id) | |
| 33 | { | |
| 34 | int err; | |
| 35 | ||
| da3cec35 TI |
36 | if (snd_BUG_ON((subdevice_id & 0xfff0) != DARLA24)) |
| 37 | return -ENODEV; | |
| dd7b254d GP |
38 | |
| 39 | if ((err = init_dsp_comm_page(chip))) { | |
| b5b4a41b SM |
40 | dev_err(chip->card->dev, |
| 41 | "init_hw: could not initialize DSP comm page\n"); | |
| dd7b254d GP |
42 | return err; |
| 43 | } | |
| 44 | ||
| 45 | chip->device_id = device_id; | |
| 46 | chip->subdevice_id = subdevice_id; | |
| 3f6175ec | 47 | chip->bad_board = true; |
| 19b50063 | 48 | chip->dsp_code_to_load = FW_DARLA24_DSP; |
| dd7b254d GP |
49 | /* Since this card has no ASIC, mark it as loaded so everything |
| 50 | works OK */ | |
| 3f6175ec | 51 | chip->asic_loaded = true; |
| dd7b254d GP |
52 | chip->input_clock_types = ECHO_CLOCK_BIT_INTERNAL | |
| 53 | ECHO_CLOCK_BIT_ESYNC; | |
| 54 | ||
| 55 | if ((err = load_firmware(chip)) < 0) | |
| 56 | return err; | |
| 3f6175ec | 57 | chip->bad_board = false; |
| dd7b254d | 58 | |
| dd7b254d GP |
59 | return err; |
| 60 | } | |
| 61 | ||
| 62 | ||
| 63 | ||
| ad3499f4 GP |
64 | static int set_mixer_defaults(struct echoaudio *chip) |
| 65 | { | |
| 66 | return init_line_levels(chip); | |
| 67 | } | |
| 68 | ||
| 69 | ||
| 70 | ||
| dd7b254d GP |
71 | static u32 detect_input_clocks(const struct echoaudio *chip) |
| 72 | { | |
| 73 | u32 clocks_from_dsp, clock_bits; | |
| 74 | ||
| 75 | /* Map the DSP clock detect bits to the generic driver clock | |
| 76 | detect bits */ | |
| 77 | clocks_from_dsp = le32_to_cpu(chip->comm_page->status_clocks); | |
| 78 | ||
| 79 | clock_bits = ECHO_CLOCK_BIT_INTERNAL; | |
| 80 | ||
| 81 | if (clocks_from_dsp & GLDM_CLOCK_DETECT_BIT_ESYNC) | |
| 82 | clock_bits |= ECHO_CLOCK_BIT_ESYNC; | |
| 83 | ||
| 84 | return clock_bits; | |
| 85 | } | |
| 86 | ||
| 87 | ||
| 88 | ||
| 89 | /* The Darla24 has no ASIC. Just do nothing */ | |
| 90 | static int load_asic(struct echoaudio *chip) | |
| 91 | { | |
| 92 | return 0; | |
| 93 | } | |
| 94 | ||
| 95 | ||
| 96 | ||
| 97 | static int set_sample_rate(struct echoaudio *chip, u32 rate) | |
| 98 | { | |
| 99 | u8 clock; | |
| 100 | ||
| 101 | switch (rate) { | |
| 102 | case 96000: | |
| 103 | clock = GD24_96000; | |
| 104 | break; | |
| 105 | case 88200: | |
| 106 | clock = GD24_88200; | |
| 107 | break; | |
| 108 | case 48000: | |
| 109 | clock = GD24_48000; | |
| 110 | break; | |
| 111 | case 44100: | |
| 112 | clock = GD24_44100; | |
| 113 | break; | |
| 114 | case 32000: | |
| 115 | clock = GD24_32000; | |
| 116 | break; | |
| 117 | case 22050: | |
| 118 | clock = GD24_22050; | |
| 119 | break; | |
| 120 | case 16000: | |
| 121 | clock = GD24_16000; | |
| 122 | break; | |
| 123 | case 11025: | |
| 124 | clock = GD24_11025; | |
| 125 | break; | |
| 126 | case 8000: | |
| 127 | clock = GD24_8000; | |
| 128 | break; | |
| 129 | default: | |
| b5b4a41b SM |
130 | dev_err(chip->card->dev, |
| 131 | "set_sample_rate: Error, invalid sample rate %d\n", | |
| 132 | rate); | |
| dd7b254d GP |
133 | return -EINVAL; |
| 134 | } | |
| 135 | ||
| 136 | if (wait_handshake(chip)) | |
| 137 | return -EIO; | |
| 138 | ||
| b5b4a41b SM |
139 | dev_dbg(chip->card->dev, |
| 140 | "set_sample_rate: %d clock %d\n", rate, clock); | |
| dd7b254d GP |
141 | chip->sample_rate = rate; |
| 142 | ||
| 143 | /* Override the sample rate if this card is set to Echo sync. */ | |
| 144 | if (chip->input_clock == ECHO_CLOCK_ESYNC) | |
| 145 | clock = GD24_EXT_SYNC; | |
| 146 | ||
| 147 | chip->comm_page->sample_rate = cpu_to_le32(rate); /* ignored by the DSP ? */ | |
| 148 | chip->comm_page->gd_clock_state = clock; | |
| 149 | clear_handshake(chip); | |
| 150 | return send_vector(chip, DSP_VC_SET_GD_AUDIO_STATE); | |
| 151 | } | |
| 152 | ||
| 153 | ||
| 154 | ||
| 155 | static int set_input_clock(struct echoaudio *chip, u16 clock) | |
| 156 | { | |
| da3cec35 TI |
157 | if (snd_BUG_ON(clock != ECHO_CLOCK_INTERNAL && |
| 158 | clock != ECHO_CLOCK_ESYNC)) | |
| 159 | return -EINVAL; | |
| dd7b254d GP |
160 | chip->input_clock = clock; |
| 161 | return set_sample_rate(chip, chip->sample_rate); | |
| 162 | } | |
| 163 |