1 /****************************************************************************
3 Copyright Echo Digital Audio Corporation (c) 1998 - 2004
7 This file is part of Echo Digital Audio's generic driver library.
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
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.
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,
24 *************************************************************************
26 Translation from C++ and adaptation for use in ALSA-Driver
27 were made by Giuliano Pochini <pochini@shiny.it>
29 ****************************************************************************/
32 static int set_vmixer_gain(struct echoaudio *chip, u16 output, u16 pipe,
34 static int update_vmixer_level(struct echoaudio *chip);
37 static int init_hw(struct echoaudio *chip, u16 device_id, u16 subdevice_id)
41 if (snd_BUG_ON((subdevice_id & 0xfff0) != INDIGO_DJ))
44 if ((err = init_dsp_comm_page(chip))) {
45 dev_err(chip->card->dev,
46 "init_hw - could not initialize DSP comm page\n");
50 chip->device_id = device_id;
51 chip->subdevice_id = subdevice_id;
52 chip->bad_board = true;
53 chip->dsp_code_to_load = FW_INDIGO_DJ_DSP;
54 /* Since this card has no ASIC, mark it as loaded so everything
56 chip->asic_loaded = true;
57 chip->input_clock_types = ECHO_CLOCK_BIT_INTERNAL;
59 if ((err = load_firmware(chip)) < 0)
61 chip->bad_board = false;
68 static int set_mixer_defaults(struct echoaudio *chip)
70 return init_line_levels(chip);
75 static u32 detect_input_clocks(const struct echoaudio *chip)
77 return ECHO_CLOCK_BIT_INTERNAL;
82 /* The IndigoDJ has no ASIC. Just do nothing */
83 static int load_asic(struct echoaudio *chip)
90 static int set_sample_rate(struct echoaudio *chip, u32 rate)
96 control_reg = MIA_96000;
99 control_reg = MIA_88200;
102 control_reg = MIA_48000;
105 control_reg = MIA_44100;
108 control_reg = MIA_32000;
111 dev_err(chip->card->dev,
112 "set_sample_rate: %d invalid!\n", rate);
116 /* Set the control register if it has changed */
117 if (control_reg != le32_to_cpu(chip->comm_page->control_register)) {
118 if (wait_handshake(chip))
121 chip->comm_page->sample_rate = cpu_to_le32(rate); /* ignored by the DSP */
122 chip->comm_page->control_register = cpu_to_le32(control_reg);
123 chip->sample_rate = rate;
125 clear_handshake(chip);
126 return send_vector(chip, DSP_VC_UPDATE_CLOCKS);
133 /* This function routes the sound from a virtual channel to a real output */
134 static int set_vmixer_gain(struct echoaudio *chip, u16 output, u16 pipe,
139 if (snd_BUG_ON(pipe >= num_pipes_out(chip) ||
140 output >= num_busses_out(chip)))
143 if (wait_handshake(chip))
146 chip->vmixer_gain[output][pipe] = gain;
147 index = output * num_pipes_out(chip) + pipe;
148 chip->comm_page->vmixer[index] = gain;
150 dev_dbg(chip->card->dev,
151 "set_vmixer_gain: pipe %d, out %d = %d\n", pipe, output, gain);
157 /* Tell the DSP to read and update virtual mixer levels in comm page. */
158 static int update_vmixer_level(struct echoaudio *chip)
160 if (wait_handshake(chip))
162 clear_handshake(chip);
163 return send_vector(chip, DSP_VC_SET_VMIXER_GAIN);