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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_professional_spdif(struct echoaudio *chip, char prof); | |
33 | static int update_flags(struct echoaudio *chip); | |
34 | ||
35 | ||
36 | static int init_hw(struct echoaudio *chip, u16 device_id, u16 subdevice_id) | |
37 | { | |
38 | int err; | |
39 | ||
40 | DE_INIT(("init_hw() - Gina20\n")); | |
da3cec35 TI |
41 | if (snd_BUG_ON((subdevice_id & 0xfff0) != GINA20)) |
42 | return -ENODEV; | |
dd7b254d GP |
43 | |
44 | if ((err = init_dsp_comm_page(chip))) { | |
45 | DE_INIT(("init_hw - could not initialize DSP comm page\n")); | |
46 | return err; | |
47 | } | |
48 | ||
49 | chip->device_id = device_id; | |
50 | chip->subdevice_id = subdevice_id; | |
51 | chip->bad_board = TRUE; | |
19b50063 | 52 | chip->dsp_code_to_load = FW_GINA20_DSP; |
dd7b254d GP |
53 | chip->spdif_status = GD_SPDIF_STATUS_UNDEF; |
54 | chip->clock_state = GD_CLOCK_UNDEF; | |
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 | ECHO_CLOCK_BIT_SPDIF; | |
60 | ||
61 | if ((err = load_firmware(chip)) < 0) | |
62 | return err; | |
63 | chip->bad_board = FALSE; | |
64 | ||
dd7b254d GP |
65 | DE_INIT(("init_hw done\n")); |
66 | return err; | |
67 | } | |
68 | ||
69 | ||
70 | ||
ad3499f4 GP |
71 | static int set_mixer_defaults(struct echoaudio *chip) |
72 | { | |
73 | chip->professional_spdif = FALSE; | |
74 | return init_line_levels(chip); | |
75 | } | |
76 | ||
77 | ||
78 | ||
dd7b254d GP |
79 | static u32 detect_input_clocks(const struct echoaudio *chip) |
80 | { | |
81 | u32 clocks_from_dsp, clock_bits; | |
82 | ||
83 | /* Map the DSP clock detect bits to the generic driver clock | |
84 | detect bits */ | |
85 | clocks_from_dsp = le32_to_cpu(chip->comm_page->status_clocks); | |
86 | ||
87 | clock_bits = ECHO_CLOCK_BIT_INTERNAL; | |
88 | ||
89 | if (clocks_from_dsp & GLDM_CLOCK_DETECT_BIT_SPDIF) | |
90 | clock_bits |= ECHO_CLOCK_BIT_SPDIF; | |
91 | ||
92 | return clock_bits; | |
93 | } | |
94 | ||
95 | ||
96 | ||
97 | /* The Gina20 has no ASIC. Just do nothing */ | |
98 | static int load_asic(struct echoaudio *chip) | |
99 | { | |
100 | return 0; | |
101 | } | |
102 | ||
103 | ||
104 | ||
105 | static int set_sample_rate(struct echoaudio *chip, u32 rate) | |
106 | { | |
107 | u8 clock_state, spdif_status; | |
108 | ||
109 | if (wait_handshake(chip)) | |
110 | return -EIO; | |
111 | ||
112 | switch (rate) { | |
113 | case 44100: | |
114 | clock_state = GD_CLOCK_44; | |
115 | spdif_status = GD_SPDIF_STATUS_44; | |
116 | break; | |
117 | case 48000: | |
118 | clock_state = GD_CLOCK_48; | |
119 | spdif_status = GD_SPDIF_STATUS_48; | |
120 | break; | |
121 | default: | |
122 | clock_state = GD_CLOCK_NOCHANGE; | |
123 | spdif_status = GD_SPDIF_STATUS_NOCHANGE; | |
124 | break; | |
125 | } | |
126 | ||
127 | if (chip->clock_state == clock_state) | |
128 | clock_state = GD_CLOCK_NOCHANGE; | |
129 | if (spdif_status == chip->spdif_status) | |
130 | spdif_status = GD_SPDIF_STATUS_NOCHANGE; | |
131 | ||
132 | chip->comm_page->sample_rate = cpu_to_le32(rate); | |
133 | chip->comm_page->gd_clock_state = clock_state; | |
134 | chip->comm_page->gd_spdif_status = spdif_status; | |
135 | chip->comm_page->gd_resampler_state = 3; /* magic number - should always be 3 */ | |
136 | ||
137 | /* Save the new audio state if it changed */ | |
138 | if (clock_state != GD_CLOCK_NOCHANGE) | |
139 | chip->clock_state = clock_state; | |
140 | if (spdif_status != GD_SPDIF_STATUS_NOCHANGE) | |
141 | chip->spdif_status = spdif_status; | |
142 | chip->sample_rate = rate; | |
143 | ||
144 | clear_handshake(chip); | |
145 | return send_vector(chip, DSP_VC_SET_GD_AUDIO_STATE); | |
146 | } | |
147 | ||
148 | ||
149 | ||
150 | static int set_input_clock(struct echoaudio *chip, u16 clock) | |
151 | { | |
152 | DE_ACT(("set_input_clock:\n")); | |
153 | ||
154 | switch (clock) { | |
155 | case ECHO_CLOCK_INTERNAL: | |
156 | /* Reset the audio state to unknown (just in case) */ | |
157 | chip->clock_state = GD_CLOCK_UNDEF; | |
158 | chip->spdif_status = GD_SPDIF_STATUS_UNDEF; | |
159 | set_sample_rate(chip, chip->sample_rate); | |
160 | chip->input_clock = clock; | |
161 | DE_ACT(("Set Gina clock to INTERNAL\n")); | |
162 | break; | |
163 | case ECHO_CLOCK_SPDIF: | |
164 | chip->comm_page->gd_clock_state = GD_CLOCK_SPDIFIN; | |
165 | chip->comm_page->gd_spdif_status = GD_SPDIF_STATUS_NOCHANGE; | |
166 | clear_handshake(chip); | |
167 | send_vector(chip, DSP_VC_SET_GD_AUDIO_STATE); | |
168 | chip->clock_state = GD_CLOCK_SPDIFIN; | |
169 | DE_ACT(("Set Gina20 clock to SPDIF\n")); | |
170 | chip->input_clock = clock; | |
171 | break; | |
172 | default: | |
173 | return -EINVAL; | |
174 | } | |
175 | ||
176 | return 0; | |
177 | } | |
178 | ||
179 | ||
180 | ||
181 | /* Set input bus gain (one unit is 0.5dB !) */ | |
182 | static int set_input_gain(struct echoaudio *chip, u16 input, int gain) | |
183 | { | |
da3cec35 TI |
184 | if (snd_BUG_ON(input >= num_busses_in(chip))) |
185 | return -EINVAL; | |
dd7b254d GP |
186 | |
187 | if (wait_handshake(chip)) | |
188 | return -EIO; | |
189 | ||
190 | chip->input_gain[input] = gain; | |
191 | gain += GL20_INPUT_GAIN_MAGIC_NUMBER; | |
192 | chip->comm_page->line_in_level[input] = gain; | |
193 | return 0; | |
194 | } | |
195 | ||
196 | ||
197 | ||
198 | /* Tell the DSP to reread the flags from the comm page */ | |
199 | static int update_flags(struct echoaudio *chip) | |
200 | { | |
201 | if (wait_handshake(chip)) | |
202 | return -EIO; | |
203 | clear_handshake(chip); | |
204 | return send_vector(chip, DSP_VC_UPDATE_FLAGS); | |
205 | } | |
206 | ||
207 | ||
208 | ||
209 | static int set_professional_spdif(struct echoaudio *chip, char prof) | |
210 | { | |
211 | DE_ACT(("set_professional_spdif %d\n", prof)); | |
212 | if (prof) | |
213 | chip->comm_page->flags |= | |
e930e995 | 214 | cpu_to_le32(DSP_FLAG_PROFESSIONAL_SPDIF); |
dd7b254d GP |
215 | else |
216 | chip->comm_page->flags &= | |
e930e995 | 217 | ~cpu_to_le32(DSP_FLAG_PROFESSIONAL_SPDIF); |
dd7b254d GP |
218 | chip->professional_spdif = prof; |
219 | return update_flags(chip); | |
220 | } |