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 DE_INIT(("init_hw() - Indigo DJ\n"));
42 snd_assert((subdevice_id
& 0xfff0) == INDIGO_DJ
, return -ENODEV
);
44 if ((err
= init_dsp_comm_page(chip
))) {
45 DE_INIT(("init_hw - could not initialize DSP comm page\n"));
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_INDIGO_DJ_DSP
];
53 /* Since this card has no ASIC, mark it as loaded so everything
55 chip
->asic_loaded
= TRUE
;
56 chip
->input_clock_types
= ECHO_CLOCK_BIT_INTERNAL
;
58 if ((err
= load_firmware(chip
)) < 0)
60 chip
->bad_board
= FALSE
;
62 if ((err
= init_line_levels(chip
)) < 0)
65 /* Default routing of the virtual channels: vchannels 0-3 and
66 vchannels 4-7 are routed to real channels 0-4 */
67 set_vmixer_gain(chip
, 0, 0, 0);
68 set_vmixer_gain(chip
, 1, 1, 0);
69 set_vmixer_gain(chip
, 2, 2, 0);
70 set_vmixer_gain(chip
, 3, 3, 0);
71 set_vmixer_gain(chip
, 0, 4, 0);
72 set_vmixer_gain(chip
, 1, 5, 0);
73 set_vmixer_gain(chip
, 2, 6, 0);
74 set_vmixer_gain(chip
, 3, 7, 0);
75 err
= update_vmixer_level(chip
);
77 DE_INIT(("init_hw done\n"));
83 static u32
detect_input_clocks(const struct echoaudio
*chip
)
85 return ECHO_CLOCK_BIT_INTERNAL
;
90 /* The IndigoDJ has no ASIC. Just do nothing */
91 static int load_asic(struct echoaudio
*chip
)
98 static int set_sample_rate(struct echoaudio
*chip
, u32 rate
)
104 control_reg
= MIA_96000
;
107 control_reg
= MIA_88200
;
110 control_reg
= MIA_48000
;
113 control_reg
= MIA_44100
;
116 control_reg
= MIA_32000
;
119 DE_ACT(("set_sample_rate: %d invalid!\n", rate
));
123 /* Set the control register if it has changed */
124 if (control_reg
!= le32_to_cpu(chip
->comm_page
->control_register
)) {
125 if (wait_handshake(chip
))
128 chip
->comm_page
->sample_rate
= cpu_to_le32(rate
); /* ignored by the DSP */
129 chip
->comm_page
->control_register
= cpu_to_le32(control_reg
);
130 chip
->sample_rate
= rate
;
132 clear_handshake(chip
);
133 return send_vector(chip
, DSP_VC_UPDATE_CLOCKS
);
140 /* This function routes the sound from a virtual channel to a real output */
141 static int set_vmixer_gain(struct echoaudio
*chip
, u16 output
, u16 pipe
,
146 snd_assert(pipe
< num_pipes_out(chip
) &&
147 output
< num_busses_out(chip
), return -EINVAL
);
149 if (wait_handshake(chip
))
152 chip
->vmixer_gain
[output
][pipe
] = gain
;
153 index
= output
* num_pipes_out(chip
) + pipe
;
154 chip
->comm_page
->vmixer
[index
] = gain
;
156 DE_ACT(("set_vmixer_gain: pipe %d, out %d = %d\n", pipe
, output
, gain
));
162 /* Tell the DSP to read and update virtual mixer levels in comm page. */
163 static int update_vmixer_level(struct echoaudio
*chip
)
165 if (wait_handshake(chip
))
167 clear_handshake(chip
);
168 return send_vector(chip
, DSP_VC_SET_VMIXER_GAIN
);
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