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_professional_spdif(struct echoaudio *chip, char prof); |
| 33 | static int update_flags(struct echoaudio *chip); |
| 34 | |
| 35 | |
| 36 | static int init_hw(struct echoaudio *chip, u16 device_id, u16 subdevice_id) |
| 37 | { |
| 38 | int err; |
| 39 | |
| 40 | DE_INIT(("init_hw() - Gina20\n")); |
Takashi Iwai | da3cec3 | 2008-08-08 17:12:14 +0200 | [diff] [blame] | 41 | if (snd_BUG_ON((subdevice_id & 0xfff0) != GINA20)) |
| 42 | return -ENODEV; |
Giuliano Pochini | dd7b254 | 2006-06-28 13:53:41 +0200 | [diff] [blame] | 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_GINA20_DSP]; |
| 53 | chip->spdif_status = GD_SPDIF_STATUS_UNDEF; |
| 54 | chip->clock_state = GD_CLOCK_UNDEF; |
| 55 | /* Since this card has no ASIC, mark it as loaded so everything |
| 56 | works OK */ |
| 57 | chip->asic_loaded = TRUE; |
| 58 | chip->input_clock_types = ECHO_CLOCK_BIT_INTERNAL | |
| 59 | ECHO_CLOCK_BIT_SPDIF; |
| 60 | |
| 61 | if ((err = load_firmware(chip)) < 0) |
| 62 | return err; |
| 63 | chip->bad_board = FALSE; |
| 64 | |
| 65 | if ((err = init_line_levels(chip)) < 0) |
| 66 | return err; |
| 67 | |
| 68 | err = set_professional_spdif(chip, TRUE); |
| 69 | |
| 70 | DE_INIT(("init_hw done\n")); |
| 71 | return err; |
| 72 | } |
| 73 | |
| 74 | |
| 75 | |
| 76 | static u32 detect_input_clocks(const struct echoaudio *chip) |
| 77 | { |
| 78 | u32 clocks_from_dsp, clock_bits; |
| 79 | |
| 80 | /* Map the DSP clock detect bits to the generic driver clock |
| 81 | detect bits */ |
| 82 | clocks_from_dsp = le32_to_cpu(chip->comm_page->status_clocks); |
| 83 | |
| 84 | clock_bits = ECHO_CLOCK_BIT_INTERNAL; |
| 85 | |
| 86 | if (clocks_from_dsp & GLDM_CLOCK_DETECT_BIT_SPDIF) |
| 87 | clock_bits |= ECHO_CLOCK_BIT_SPDIF; |
| 88 | |
| 89 | return clock_bits; |
| 90 | } |
| 91 | |
| 92 | |
| 93 | |
| 94 | /* The Gina20 has no ASIC. Just do nothing */ |
| 95 | static int load_asic(struct echoaudio *chip) |
| 96 | { |
| 97 | return 0; |
| 98 | } |
| 99 | |
| 100 | |
| 101 | |
| 102 | static int set_sample_rate(struct echoaudio *chip, u32 rate) |
| 103 | { |
| 104 | u8 clock_state, spdif_status; |
| 105 | |
| 106 | if (wait_handshake(chip)) |
| 107 | return -EIO; |
| 108 | |
| 109 | switch (rate) { |
| 110 | case 44100: |
| 111 | clock_state = GD_CLOCK_44; |
| 112 | spdif_status = GD_SPDIF_STATUS_44; |
| 113 | break; |
| 114 | case 48000: |
| 115 | clock_state = GD_CLOCK_48; |
| 116 | spdif_status = GD_SPDIF_STATUS_48; |
| 117 | break; |
| 118 | default: |
| 119 | clock_state = GD_CLOCK_NOCHANGE; |
| 120 | spdif_status = GD_SPDIF_STATUS_NOCHANGE; |
| 121 | break; |
| 122 | } |
| 123 | |
| 124 | if (chip->clock_state == clock_state) |
| 125 | clock_state = GD_CLOCK_NOCHANGE; |
| 126 | if (spdif_status == chip->spdif_status) |
| 127 | spdif_status = GD_SPDIF_STATUS_NOCHANGE; |
| 128 | |
| 129 | chip->comm_page->sample_rate = cpu_to_le32(rate); |
| 130 | chip->comm_page->gd_clock_state = clock_state; |
| 131 | chip->comm_page->gd_spdif_status = spdif_status; |
| 132 | chip->comm_page->gd_resampler_state = 3; /* magic number - should always be 3 */ |
| 133 | |
| 134 | /* Save the new audio state if it changed */ |
| 135 | if (clock_state != GD_CLOCK_NOCHANGE) |
| 136 | chip->clock_state = clock_state; |
| 137 | if (spdif_status != GD_SPDIF_STATUS_NOCHANGE) |
| 138 | chip->spdif_status = spdif_status; |
| 139 | chip->sample_rate = rate; |
| 140 | |
| 141 | clear_handshake(chip); |
| 142 | return send_vector(chip, DSP_VC_SET_GD_AUDIO_STATE); |
| 143 | } |
| 144 | |
| 145 | |
| 146 | |
| 147 | static int set_input_clock(struct echoaudio *chip, u16 clock) |
| 148 | { |
| 149 | DE_ACT(("set_input_clock:\n")); |
| 150 | |
| 151 | switch (clock) { |
| 152 | case ECHO_CLOCK_INTERNAL: |
| 153 | /* Reset the audio state to unknown (just in case) */ |
| 154 | chip->clock_state = GD_CLOCK_UNDEF; |
| 155 | chip->spdif_status = GD_SPDIF_STATUS_UNDEF; |
| 156 | set_sample_rate(chip, chip->sample_rate); |
| 157 | chip->input_clock = clock; |
| 158 | DE_ACT(("Set Gina clock to INTERNAL\n")); |
| 159 | break; |
| 160 | case ECHO_CLOCK_SPDIF: |
| 161 | chip->comm_page->gd_clock_state = GD_CLOCK_SPDIFIN; |
| 162 | chip->comm_page->gd_spdif_status = GD_SPDIF_STATUS_NOCHANGE; |
| 163 | clear_handshake(chip); |
| 164 | send_vector(chip, DSP_VC_SET_GD_AUDIO_STATE); |
| 165 | chip->clock_state = GD_CLOCK_SPDIFIN; |
| 166 | DE_ACT(("Set Gina20 clock to SPDIF\n")); |
| 167 | chip->input_clock = clock; |
| 168 | break; |
| 169 | default: |
| 170 | return -EINVAL; |
| 171 | } |
| 172 | |
| 173 | return 0; |
| 174 | } |
| 175 | |
| 176 | |
| 177 | |
| 178 | /* Set input bus gain (one unit is 0.5dB !) */ |
| 179 | static int set_input_gain(struct echoaudio *chip, u16 input, int gain) |
| 180 | { |
Takashi Iwai | da3cec3 | 2008-08-08 17:12:14 +0200 | [diff] [blame] | 181 | if (snd_BUG_ON(input >= num_busses_in(chip))) |
| 182 | return -EINVAL; |
Giuliano Pochini | dd7b254 | 2006-06-28 13:53:41 +0200 | [diff] [blame] | 183 | |
| 184 | if (wait_handshake(chip)) |
| 185 | return -EIO; |
| 186 | |
| 187 | chip->input_gain[input] = gain; |
| 188 | gain += GL20_INPUT_GAIN_MAGIC_NUMBER; |
| 189 | chip->comm_page->line_in_level[input] = gain; |
| 190 | return 0; |
| 191 | } |
| 192 | |
| 193 | |
| 194 | |
| 195 | /* Tell the DSP to reread the flags from the comm page */ |
| 196 | static int update_flags(struct echoaudio *chip) |
| 197 | { |
| 198 | if (wait_handshake(chip)) |
| 199 | return -EIO; |
| 200 | clear_handshake(chip); |
| 201 | return send_vector(chip, DSP_VC_UPDATE_FLAGS); |
| 202 | } |
| 203 | |
| 204 | |
| 205 | |
| 206 | static int set_professional_spdif(struct echoaudio *chip, char prof) |
| 207 | { |
| 208 | DE_ACT(("set_professional_spdif %d\n", prof)); |
| 209 | if (prof) |
| 210 | chip->comm_page->flags |= |
Harvey Harrison | e930e99 | 2009-02-11 14:49:30 -0800 | [diff] [blame] | 211 | cpu_to_le32(DSP_FLAG_PROFESSIONAL_SPDIF); |
Giuliano Pochini | dd7b254 | 2006-06-28 13:53:41 +0200 | [diff] [blame] | 212 | else |
| 213 | chip->comm_page->flags &= |
Harvey Harrison | e930e99 | 2009-02-11 14:49:30 -0800 | [diff] [blame] | 214 | ~cpu_to_le32(DSP_FLAG_PROFESSIONAL_SPDIF); |
Giuliano Pochini | dd7b254 | 2006-06-28 13:53:41 +0200 | [diff] [blame] | 215 | chip->professional_spdif = prof; |
| 216 | return update_flags(chip); |
| 217 | } |