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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_input_clock(struct echoaudio *chip, u16 clock); | |
33 | static int set_professional_spdif(struct echoaudio *chip, char prof); | |
34 | static int update_flags(struct echoaudio *chip); | |
35 | static int set_vmixer_gain(struct echoaudio *chip, u16 output, u16 pipe, | |
36 | int gain); | |
37 | static int update_vmixer_level(struct echoaudio *chip); | |
38 | ||
39 | ||
40 | static int init_hw(struct echoaudio *chip, u16 device_id, u16 subdevice_id) | |
41 | { | |
42 | int err; | |
43 | ||
44 | DE_INIT(("init_hw() - Mia\n")); | |
da3cec35 TI |
45 | if (snd_BUG_ON((subdevice_id & 0xfff0) != MIA)) |
46 | return -ENODEV; | |
dd7b254d GP |
47 | |
48 | if ((err = init_dsp_comm_page(chip))) { | |
49 | DE_INIT(("init_hw - could not initialize DSP comm page\n")); | |
50 | return err; | |
51 | } | |
52 | ||
53 | chip->device_id = device_id; | |
54 | chip->subdevice_id = subdevice_id; | |
55 | chip->bad_board = TRUE; | |
19b50063 | 56 | chip->dsp_code_to_load = FW_MIA_DSP; |
dd7b254d GP |
57 | /* Since this card has no ASIC, mark it as loaded so everything |
58 | works OK */ | |
59 | chip->asic_loaded = TRUE; | |
60 | if ((subdevice_id & 0x0000f) == MIA_MIDI_REV) | |
61 | chip->has_midi = TRUE; | |
62 | chip->input_clock_types = ECHO_CLOCK_BIT_INTERNAL | | |
63 | ECHO_CLOCK_BIT_SPDIF; | |
64 | ||
65 | if ((err = load_firmware(chip)) < 0) | |
66 | return err; | |
67 | chip->bad_board = FALSE; | |
68 | ||
dd7b254d GP |
69 | DE_INIT(("init_hw done\n")); |
70 | return err; | |
71 | } | |
72 | ||
73 | ||
74 | ||
ad3499f4 GP |
75 | static int set_mixer_defaults(struct echoaudio *chip) |
76 | { | |
77 | return init_line_levels(chip); | |
78 | } | |
79 | ||
80 | ||
81 | ||
dd7b254d GP |
82 | static u32 detect_input_clocks(const struct echoaudio *chip) |
83 | { | |
84 | u32 clocks_from_dsp, clock_bits; | |
85 | ||
86 | /* Map the DSP clock detect bits to the generic driver clock | |
87 | detect bits */ | |
88 | clocks_from_dsp = le32_to_cpu(chip->comm_page->status_clocks); | |
89 | ||
90 | clock_bits = ECHO_CLOCK_BIT_INTERNAL; | |
91 | ||
92 | if (clocks_from_dsp & GLDM_CLOCK_DETECT_BIT_SPDIF) | |
93 | clock_bits |= ECHO_CLOCK_BIT_SPDIF; | |
94 | ||
95 | return clock_bits; | |
96 | } | |
97 | ||
98 | ||
99 | ||
100 | /* The Mia has no ASIC. Just do nothing */ | |
101 | static int load_asic(struct echoaudio *chip) | |
102 | { | |
103 | return 0; | |
104 | } | |
105 | ||
106 | ||
107 | ||
108 | static int set_sample_rate(struct echoaudio *chip, u32 rate) | |
109 | { | |
110 | u32 control_reg; | |
111 | ||
112 | switch (rate) { | |
113 | case 96000: | |
114 | control_reg = MIA_96000; | |
115 | break; | |
116 | case 88200: | |
117 | control_reg = MIA_88200; | |
118 | break; | |
119 | case 48000: | |
120 | control_reg = MIA_48000; | |
121 | break; | |
122 | case 44100: | |
123 | control_reg = MIA_44100; | |
124 | break; | |
125 | case 32000: | |
126 | control_reg = MIA_32000; | |
127 | break; | |
128 | default: | |
129 | DE_ACT(("set_sample_rate: %d invalid!\n", rate)); | |
130 | return -EINVAL; | |
131 | } | |
132 | ||
133 | /* Override the clock setting if this Mia is set to S/PDIF clock */ | |
134 | if (chip->input_clock == ECHO_CLOCK_SPDIF) | |
135 | control_reg |= MIA_SPDIF; | |
136 | ||
137 | /* Set the control register if it has changed */ | |
138 | if (control_reg != le32_to_cpu(chip->comm_page->control_register)) { | |
139 | if (wait_handshake(chip)) | |
140 | return -EIO; | |
141 | ||
142 | chip->comm_page->sample_rate = cpu_to_le32(rate); /* ignored by the DSP */ | |
143 | chip->comm_page->control_register = cpu_to_le32(control_reg); | |
144 | chip->sample_rate = rate; | |
145 | ||
146 | clear_handshake(chip); | |
147 | return send_vector(chip, DSP_VC_UPDATE_CLOCKS); | |
148 | } | |
149 | return 0; | |
150 | } | |
151 | ||
152 | ||
153 | ||
154 | static int set_input_clock(struct echoaudio *chip, u16 clock) | |
155 | { | |
156 | DE_ACT(("set_input_clock(%d)\n", clock)); | |
da3cec35 TI |
157 | if (snd_BUG_ON(clock != ECHO_CLOCK_INTERNAL && |
158 | clock != ECHO_CLOCK_SPDIF)) | |
159 | return -EINVAL; | |
dd7b254d GP |
160 | |
161 | chip->input_clock = clock; | |
162 | return set_sample_rate(chip, chip->sample_rate); | |
163 | } | |
164 | ||
165 | ||
166 | ||
167 | /* This function routes the sound from a virtual channel to a real output */ | |
168 | static int set_vmixer_gain(struct echoaudio *chip, u16 output, u16 pipe, | |
169 | int gain) | |
170 | { | |
171 | int index; | |
172 | ||
da3cec35 TI |
173 | if (snd_BUG_ON(pipe >= num_pipes_out(chip) || |
174 | output >= num_busses_out(chip))) | |
175 | return -EINVAL; | |
dd7b254d GP |
176 | |
177 | if (wait_handshake(chip)) | |
178 | return -EIO; | |
179 | ||
180 | chip->vmixer_gain[output][pipe] = gain; | |
181 | index = output * num_pipes_out(chip) + pipe; | |
182 | chip->comm_page->vmixer[index] = gain; | |
183 | ||
184 | DE_ACT(("set_vmixer_gain: pipe %d, out %d = %d\n", pipe, output, gain)); | |
185 | return 0; | |
186 | } | |
187 | ||
188 | ||
189 | ||
190 | /* Tell the DSP to read and update virtual mixer levels in comm page. */ | |
191 | static int update_vmixer_level(struct echoaudio *chip) | |
192 | { | |
193 | if (wait_handshake(chip)) | |
194 | return -EIO; | |
195 | clear_handshake(chip); | |
196 | return send_vector(chip, DSP_VC_SET_VMIXER_GAIN); | |
197 | } | |
198 | ||
199 | ||
200 | ||
201 | /* Tell the DSP to reread the flags from the comm page */ | |
202 | static int update_flags(struct echoaudio *chip) | |
203 | { | |
204 | if (wait_handshake(chip)) | |
205 | return -EIO; | |
206 | clear_handshake(chip); | |
207 | return send_vector(chip, DSP_VC_UPDATE_FLAGS); | |
208 | } | |
209 | ||
210 | ||
211 | ||
212 | static int set_professional_spdif(struct echoaudio *chip, char prof) | |
213 | { | |
214 | DE_ACT(("set_professional_spdif %d\n", prof)); | |
215 | if (prof) | |
216 | chip->comm_page->flags |= | |
e930e995 | 217 | cpu_to_le32(DSP_FLAG_PROFESSIONAL_SPDIF); |
dd7b254d GP |
218 | else |
219 | chip->comm_page->flags &= | |
e930e995 | 220 | ~cpu_to_le32(DSP_FLAG_PROFESSIONAL_SPDIF); |
dd7b254d GP |
221 | chip->professional_spdif = prof; |
222 | return update_flags(chip); | |
223 | } | |
224 |