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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 | ||
b5b4a41b | 41 | dev_dbg(chip->card->dev, "init_hw() - Indigo\n"); |
da3cec35 TI |
42 | if (snd_BUG_ON((subdevice_id & 0xfff0) != INDIGO)) |
43 | return -ENODEV; | |
dd7b254d GP |
44 | |
45 | if ((err = init_dsp_comm_page(chip))) { | |
b5b4a41b SM |
46 | dev_err(chip->card->dev, |
47 | "init_hw - could not initialize DSP comm page\n"); | |
dd7b254d GP |
48 | return err; |
49 | } | |
50 | ||
51 | chip->device_id = device_id; | |
52 | chip->subdevice_id = subdevice_id; | |
53 | chip->bad_board = TRUE; | |
19b50063 | 54 | chip->dsp_code_to_load = FW_INDIGO_DSP; |
dd7b254d GP |
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 | ||
60 | if ((err = load_firmware(chip)) < 0) | |
61 | return err; | |
62 | chip->bad_board = FALSE; | |
63 | ||
b5b4a41b | 64 | dev_dbg(chip->card->dev, "init_hw done\n"); |
dd7b254d GP |
65 | return err; |
66 | } | |
67 | ||
68 | ||
69 | ||
ad3499f4 GP |
70 | static int set_mixer_defaults(struct echoaudio *chip) |
71 | { | |
72 | return init_line_levels(chip); | |
73 | } | |
74 | ||
75 | ||
76 | ||
dd7b254d GP |
77 | static u32 detect_input_clocks(const struct echoaudio *chip) |
78 | { | |
79 | return ECHO_CLOCK_BIT_INTERNAL; | |
80 | } | |
81 | ||
82 | ||
83 | ||
84 | /* The Indigo has no ASIC. Just do nothing */ | |
85 | static int load_asic(struct echoaudio *chip) | |
86 | { | |
87 | return 0; | |
88 | } | |
89 | ||
90 | ||
91 | ||
92 | static int set_sample_rate(struct echoaudio *chip, u32 rate) | |
93 | { | |
94 | u32 control_reg; | |
95 | ||
96 | switch (rate) { | |
97 | case 96000: | |
98 | control_reg = MIA_96000; | |
99 | break; | |
100 | case 88200: | |
101 | control_reg = MIA_88200; | |
102 | break; | |
103 | case 48000: | |
104 | control_reg = MIA_48000; | |
105 | break; | |
106 | case 44100: | |
107 | control_reg = MIA_44100; | |
108 | break; | |
109 | case 32000: | |
110 | control_reg = MIA_32000; | |
111 | break; | |
112 | default: | |
b5b4a41b SM |
113 | dev_err(chip->card->dev, |
114 | "set_sample_rate: %d invalid!\n", rate); | |
dd7b254d GP |
115 | return -EINVAL; |
116 | } | |
117 | ||
118 | /* Set the control register if it has changed */ | |
119 | if (control_reg != le32_to_cpu(chip->comm_page->control_register)) { | |
120 | if (wait_handshake(chip)) | |
121 | return -EIO; | |
122 | ||
123 | chip->comm_page->sample_rate = cpu_to_le32(rate); /* ignored by the DSP */ | |
124 | chip->comm_page->control_register = cpu_to_le32(control_reg); | |
125 | chip->sample_rate = rate; | |
126 | ||
127 | clear_handshake(chip); | |
128 | return send_vector(chip, DSP_VC_UPDATE_CLOCKS); | |
129 | } | |
130 | return 0; | |
131 | } | |
132 | ||
133 | ||
134 | ||
135 | /* This function routes the sound from a virtual channel to a real output */ | |
136 | static int set_vmixer_gain(struct echoaudio *chip, u16 output, u16 pipe, | |
137 | int gain) | |
138 | { | |
139 | int index; | |
140 | ||
da3cec35 TI |
141 | if (snd_BUG_ON(pipe >= num_pipes_out(chip) || |
142 | output >= num_busses_out(chip))) | |
143 | return -EINVAL; | |
dd7b254d GP |
144 | |
145 | if (wait_handshake(chip)) | |
146 | return -EIO; | |
147 | ||
148 | chip->vmixer_gain[output][pipe] = gain; | |
149 | index = output * num_pipes_out(chip) + pipe; | |
150 | chip->comm_page->vmixer[index] = gain; | |
151 | ||
b5b4a41b SM |
152 | dev_dbg(chip->card->dev, |
153 | "set_vmixer_gain: pipe %d, out %d = %d\n", pipe, output, gain); | |
dd7b254d GP |
154 | return 0; |
155 | } | |
156 | ||
157 | ||
158 | ||
159 | /* Tell the DSP to read and update virtual mixer levels in comm page. */ | |
160 | static int update_vmixer_level(struct echoaudio *chip) | |
161 | { | |
162 | if (wait_handshake(chip)) | |
163 | return -EIO; | |
164 | clear_handshake(chip); | |
165 | return send_vector(chip, DSP_VC_SET_VMIXER_GAIN); | |
166 | } | |
167 |