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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 set_vmixer_gain(struct echoaudio *chip, u16 output, u16 pipe, | |
33 | int gain); | |
34 | static int update_vmixer_level(struct echoaudio *chip); | |
35 | ||
36 | ||
37 | static int init_hw(struct echoaudio *chip, u16 device_id, u16 subdevice_id) | |
38 | { | |
39 | int err; | |
40 | ||
41 | DE_INIT(("init_hw() - Indigo DJ\n")); | |
da3cec35 TI |
42 | if (snd_BUG_ON((subdevice_id & 0xfff0) != INDIGO_DJ)) |
43 | return -ENODEV; | |
dd7b254d GP |
44 | |
45 | if ((err = init_dsp_comm_page(chip))) { | |
46 | DE_INIT(("init_hw - could not initialize DSP comm page\n")); | |
47 | return err; | |
48 | } | |
49 | ||
50 | chip->device_id = device_id; | |
51 | chip->subdevice_id = subdevice_id; | |
52 | chip->bad_board = TRUE; | |
53 | chip->dsp_code_to_load = &card_fw[FW_INDIGO_DJ_DSP]; | |
54 | /* Since this card has no ASIC, mark it as loaded so everything | |
55 | works OK */ | |
56 | chip->asic_loaded = TRUE; | |
57 | chip->input_clock_types = ECHO_CLOCK_BIT_INTERNAL; | |
58 | ||
59 | if ((err = load_firmware(chip)) < 0) | |
60 | return err; | |
61 | chip->bad_board = FALSE; | |
62 | ||
63 | if ((err = init_line_levels(chip)) < 0) | |
64 | return err; | |
65 | ||
66 | /* Default routing of the virtual channels: vchannels 0-3 and | |
67 | vchannels 4-7 are routed to real channels 0-4 */ | |
68 | set_vmixer_gain(chip, 0, 0, 0); | |
69 | set_vmixer_gain(chip, 1, 1, 0); | |
70 | set_vmixer_gain(chip, 2, 2, 0); | |
71 | set_vmixer_gain(chip, 3, 3, 0); | |
72 | set_vmixer_gain(chip, 0, 4, 0); | |
73 | set_vmixer_gain(chip, 1, 5, 0); | |
74 | set_vmixer_gain(chip, 2, 6, 0); | |
75 | set_vmixer_gain(chip, 3, 7, 0); | |
76 | err = update_vmixer_level(chip); | |
77 | ||
78 | DE_INIT(("init_hw done\n")); | |
79 | return err; | |
80 | } | |
81 | ||
82 | ||
83 | ||
84 | static u32 detect_input_clocks(const struct echoaudio *chip) | |
85 | { | |
86 | return ECHO_CLOCK_BIT_INTERNAL; | |
87 | } | |
88 | ||
89 | ||
90 | ||
91 | /* The IndigoDJ has no ASIC. Just do nothing */ | |
92 | static int load_asic(struct echoaudio *chip) | |
93 | { | |
94 | return 0; | |
95 | } | |
96 | ||
97 | ||
98 | ||
99 | static int set_sample_rate(struct echoaudio *chip, u32 rate) | |
100 | { | |
101 | u32 control_reg; | |
102 | ||
103 | switch (rate) { | |
104 | case 96000: | |
105 | control_reg = MIA_96000; | |
106 | break; | |
107 | case 88200: | |
108 | control_reg = MIA_88200; | |
109 | break; | |
110 | case 48000: | |
111 | control_reg = MIA_48000; | |
112 | break; | |
113 | case 44100: | |
114 | control_reg = MIA_44100; | |
115 | break; | |
116 | case 32000: | |
117 | control_reg = MIA_32000; | |
118 | break; | |
119 | default: | |
120 | DE_ACT(("set_sample_rate: %d invalid!\n", rate)); | |
121 | return -EINVAL; | |
122 | } | |
123 | ||
124 | /* Set the control register if it has changed */ | |
125 | if (control_reg != le32_to_cpu(chip->comm_page->control_register)) { | |
126 | if (wait_handshake(chip)) | |
127 | return -EIO; | |
128 | ||
129 | chip->comm_page->sample_rate = cpu_to_le32(rate); /* ignored by the DSP */ | |
130 | chip->comm_page->control_register = cpu_to_le32(control_reg); | |
131 | chip->sample_rate = rate; | |
132 | ||
133 | clear_handshake(chip); | |
134 | return send_vector(chip, DSP_VC_UPDATE_CLOCKS); | |
135 | } | |
136 | return 0; | |
137 | } | |
138 | ||
139 | ||
140 | ||
141 | /* This function routes the sound from a virtual channel to a real output */ | |
142 | static int set_vmixer_gain(struct echoaudio *chip, u16 output, u16 pipe, | |
143 | int gain) | |
144 | { | |
145 | int index; | |
146 | ||
da3cec35 TI |
147 | if (snd_BUG_ON(pipe >= num_pipes_out(chip) || |
148 | output >= num_busses_out(chip))) | |
149 | return -EINVAL; | |
dd7b254d GP |
150 | |
151 | if (wait_handshake(chip)) | |
152 | return -EIO; | |
153 | ||
154 | chip->vmixer_gain[output][pipe] = gain; | |
155 | index = output * num_pipes_out(chip) + pipe; | |
156 | chip->comm_page->vmixer[index] = gain; | |
157 | ||
158 | DE_ACT(("set_vmixer_gain: pipe %d, out %d = %d\n", pipe, output, gain)); | |
159 | return 0; | |
160 | } | |
161 | ||
162 | ||
163 | ||
164 | /* Tell the DSP to read and update virtual mixer levels in comm page. */ | |
165 | static int update_vmixer_level(struct echoaudio *chip) | |
166 | { | |
167 | if (wait_handshake(chip)) | |
168 | return -EIO; | |
169 | clear_handshake(chip); | |
170 | return send_vector(chip, DSP_VC_SET_VMIXER_GAIN); | |
171 | } | |
172 |