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 32static int set_professional_spdif(struct echoaudio *chip, char prof); 33static int update_flags(struct echoaudio *chip); 34 35 36static int init_hw(struct echoaudio *chip, u16 device_id, u16 subdevice_id) 37{ 38 int err; 39 40 DE_INIT(("init_hw() - Gina20\n")); 41 if (snd_BUG_ON((subdevice_id & 0xfff0) != GINA20)) 42 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 = 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 DE_INIT(("init_hw done\n")); 66 return err; 67} 68 69 70 71static int set_mixer_defaults(struct echoaudio *chip) 72{ 73 chip->professional_spdif = FALSE; 74 return init_line_levels(chip); 75} 76 77 78 79static u32 detect_input_clocks(const struct echoaudio *chip) 80{ 81 u32 clocks_from_dsp, clock_bits; 82 83 /* Map the DSP clock detect bits to the generic driver clock 84 detect bits */ 85 clocks_from_dsp = le32_to_cpu(chip->comm_page->status_clocks); 86 87 clock_bits = ECHO_CLOCK_BIT_INTERNAL; 88 89 if (clocks_from_dsp & GLDM_CLOCK_DETECT_BIT_SPDIF) 90 clock_bits |= ECHO_CLOCK_BIT_SPDIF; 91 92 return clock_bits; 93} 94 95 96 97/* The Gina20 has no ASIC. Just do nothing */ 98static int load_asic(struct echoaudio *chip) 99{ 100 return 0; 101} 102 103 104 105static int set_sample_rate(struct echoaudio *chip, u32 rate) 106{ 107 u8 clock_state, spdif_status; 108 109 if (wait_handshake(chip)) 110 return -EIO; 111 112 switch (rate) { 113 case 44100: 114 clock_state = GD_CLOCK_44; 115 spdif_status = GD_SPDIF_STATUS_44; 116 break; 117 case 48000: 118 clock_state = GD_CLOCK_48; 119 spdif_status = GD_SPDIF_STATUS_48; 120 break; 121 default: 122 clock_state = GD_CLOCK_NOCHANGE; 123 spdif_status = GD_SPDIF_STATUS_NOCHANGE; 124 break; 125 } 126 127 if (chip->clock_state == clock_state) 128 clock_state = GD_CLOCK_NOCHANGE; 129 if (spdif_status == chip->spdif_status) 130 spdif_status = GD_SPDIF_STATUS_NOCHANGE; 131 132 chip->comm_page->sample_rate = cpu_to_le32(rate); 133 chip->comm_page->gd_clock_state = clock_state; 134 chip->comm_page->gd_spdif_status = spdif_status; 135 chip->comm_page->gd_resampler_state = 3; /* magic number - should always be 3 */ 136 137 /* Save the new audio state if it changed */ 138 if (clock_state != GD_CLOCK_NOCHANGE) 139 chip->clock_state = clock_state; 140 if (spdif_status != GD_SPDIF_STATUS_NOCHANGE) 141 chip->spdif_status = spdif_status; 142 chip->sample_rate = rate; 143 144 clear_handshake(chip); 145 return send_vector(chip, DSP_VC_SET_GD_AUDIO_STATE); 146} 147 148 149 150static int set_input_clock(struct echoaudio *chip, u16 clock) 151{ 152 DE_ACT(("set_input_clock:\n")); 153 154 switch (clock) { 155 case ECHO_CLOCK_INTERNAL: 156 /* Reset the audio state to unknown (just in case) */ 157 chip->clock_state = GD_CLOCK_UNDEF; 158 chip->spdif_status = GD_SPDIF_STATUS_UNDEF; 159 set_sample_rate(chip, chip->sample_rate); 160 chip->input_clock = clock; 161 DE_ACT(("Set Gina clock to INTERNAL\n")); 162 break; 163 case ECHO_CLOCK_SPDIF: 164 chip->comm_page->gd_clock_state = GD_CLOCK_SPDIFIN; 165 chip->comm_page->gd_spdif_status = GD_SPDIF_STATUS_NOCHANGE; 166 clear_handshake(chip); 167 send_vector(chip, DSP_VC_SET_GD_AUDIO_STATE); 168 chip->clock_state = GD_CLOCK_SPDIFIN; 169 DE_ACT(("Set Gina20 clock to SPDIF\n")); 170 chip->input_clock = clock; 171 break; 172 default: 173 return -EINVAL; 174 } 175 176 return 0; 177} 178 179 180 181/* Set input bus gain (one unit is 0.5dB !) */ 182static int set_input_gain(struct echoaudio *chip, u16 input, int gain) 183{ 184 if (snd_BUG_ON(input >= num_busses_in(chip))) 185 return -EINVAL; 186 187 if (wait_handshake(chip)) 188 return -EIO; 189 190 chip->input_gain[input] = gain; 191 gain += GL20_INPUT_GAIN_MAGIC_NUMBER; 192 chip->comm_page->line_in_level[input] = gain; 193 return 0; 194} 195 196 197 198/* Tell the DSP to reread the flags from the comm page */ 199static int update_flags(struct echoaudio *chip) 200{ 201 if (wait_handshake(chip)) 202 return -EIO; 203 clear_handshake(chip); 204 return send_vector(chip, DSP_VC_UPDATE_FLAGS); 205} 206 207 208 209static int set_professional_spdif(struct echoaudio *chip, char prof) 210{ 211 DE_ACT(("set_professional_spdif %d\n", prof)); 212 if (prof) 213 chip->comm_page->flags |= 214 cpu_to_le32(DSP_FLAG_PROFESSIONAL_SPDIF); 215 else 216 chip->comm_page->flags &= 217 ~cpu_to_le32(DSP_FLAG_PROFESSIONAL_SPDIF); 218 chip->professional_spdif = prof; 219 return update_flags(chip); 220} 221