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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; | |
52 | chip->dsp_code_to_load = &card_fw[FW_GINA20_DSP]; | |
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 | ||
65 | if ((err = init_line_levels(chip)) < 0) | |
66 | return err; | |
67 | ||
68 | err = set_professional_spdif(chip, TRUE); | |
69 | ||
70 | DE_INIT(("init_hw done\n")); | |
71 | return err; | |
72 | } | |
73 | ||
74 | ||
75 | ||
76 | static u32 detect_input_clocks(const struct echoaudio *chip) | |
77 | { | |
78 | u32 clocks_from_dsp, clock_bits; | |
79 | ||
80 | /* Map the DSP clock detect bits to the generic driver clock | |
81 | detect bits */ | |
82 | clocks_from_dsp = le32_to_cpu(chip->comm_page->status_clocks); | |
83 | ||
84 | clock_bits = ECHO_CLOCK_BIT_INTERNAL; | |
85 | ||
86 | if (clocks_from_dsp & GLDM_CLOCK_DETECT_BIT_SPDIF) | |
87 | clock_bits |= ECHO_CLOCK_BIT_SPDIF; | |
88 | ||
89 | return clock_bits; | |
90 | } | |
91 | ||
92 | ||
93 | ||
94 | /* The Gina20 has no ASIC. Just do nothing */ | |
95 | static int load_asic(struct echoaudio *chip) | |
96 | { | |
97 | return 0; | |
98 | } | |
99 | ||
100 | ||
101 | ||
102 | static int set_sample_rate(struct echoaudio *chip, u32 rate) | |
103 | { | |
104 | u8 clock_state, spdif_status; | |
105 | ||
106 | if (wait_handshake(chip)) | |
107 | return -EIO; | |
108 | ||
109 | switch (rate) { | |
110 | case 44100: | |
111 | clock_state = GD_CLOCK_44; | |
112 | spdif_status = GD_SPDIF_STATUS_44; | |
113 | break; | |
114 | case 48000: | |
115 | clock_state = GD_CLOCK_48; | |
116 | spdif_status = GD_SPDIF_STATUS_48; | |
117 | break; | |
118 | default: | |
119 | clock_state = GD_CLOCK_NOCHANGE; | |
120 | spdif_status = GD_SPDIF_STATUS_NOCHANGE; | |
121 | break; | |
122 | } | |
123 | ||
124 | if (chip->clock_state == clock_state) | |
125 | clock_state = GD_CLOCK_NOCHANGE; | |
126 | if (spdif_status == chip->spdif_status) | |
127 | spdif_status = GD_SPDIF_STATUS_NOCHANGE; | |
128 | ||
129 | chip->comm_page->sample_rate = cpu_to_le32(rate); | |
130 | chip->comm_page->gd_clock_state = clock_state; | |
131 | chip->comm_page->gd_spdif_status = spdif_status; | |
132 | chip->comm_page->gd_resampler_state = 3; /* magic number - should always be 3 */ | |
133 | ||
134 | /* Save the new audio state if it changed */ | |
135 | if (clock_state != GD_CLOCK_NOCHANGE) | |
136 | chip->clock_state = clock_state; | |
137 | if (spdif_status != GD_SPDIF_STATUS_NOCHANGE) | |
138 | chip->spdif_status = spdif_status; | |
139 | chip->sample_rate = rate; | |
140 | ||
141 | clear_handshake(chip); | |
142 | return send_vector(chip, DSP_VC_SET_GD_AUDIO_STATE); | |
143 | } | |
144 | ||
145 | ||
146 | ||
147 | static int set_input_clock(struct echoaudio *chip, u16 clock) | |
148 | { | |
149 | DE_ACT(("set_input_clock:\n")); | |
150 | ||
151 | switch (clock) { | |
152 | case ECHO_CLOCK_INTERNAL: | |
153 | /* Reset the audio state to unknown (just in case) */ | |
154 | chip->clock_state = GD_CLOCK_UNDEF; | |
155 | chip->spdif_status = GD_SPDIF_STATUS_UNDEF; | |
156 | set_sample_rate(chip, chip->sample_rate); | |
157 | chip->input_clock = clock; | |
158 | DE_ACT(("Set Gina clock to INTERNAL\n")); | |
159 | break; | |
160 | case ECHO_CLOCK_SPDIF: | |
161 | chip->comm_page->gd_clock_state = GD_CLOCK_SPDIFIN; | |
162 | chip->comm_page->gd_spdif_status = GD_SPDIF_STATUS_NOCHANGE; | |
163 | clear_handshake(chip); | |
164 | send_vector(chip, DSP_VC_SET_GD_AUDIO_STATE); | |
165 | chip->clock_state = GD_CLOCK_SPDIFIN; | |
166 | DE_ACT(("Set Gina20 clock to SPDIF\n")); | |
167 | chip->input_clock = clock; | |
168 | break; | |
169 | default: | |
170 | return -EINVAL; | |
171 | } | |
172 | ||
173 | return 0; | |
174 | } | |
175 | ||
176 | ||
177 | ||
178 | /* Set input bus gain (one unit is 0.5dB !) */ | |
179 | static int set_input_gain(struct echoaudio *chip, u16 input, int gain) | |
180 | { | |
da3cec35 TI |
181 | if (snd_BUG_ON(input >= num_busses_in(chip))) |
182 | return -EINVAL; | |
dd7b254d GP |
183 | |
184 | if (wait_handshake(chip)) | |
185 | return -EIO; | |
186 | ||
187 | chip->input_gain[input] = gain; | |
188 | gain += GL20_INPUT_GAIN_MAGIC_NUMBER; | |
189 | chip->comm_page->line_in_level[input] = gain; | |
190 | return 0; | |
191 | } | |
192 | ||
193 | ||
194 | ||
195 | /* Tell the DSP to reread the flags from the comm page */ | |
196 | static int update_flags(struct echoaudio *chip) | |
197 | { | |
198 | if (wait_handshake(chip)) | |
199 | return -EIO; | |
200 | clear_handshake(chip); | |
201 | return send_vector(chip, DSP_VC_UPDATE_FLAGS); | |
202 | } | |
203 | ||
204 | ||
205 | ||
206 | static int set_professional_spdif(struct echoaudio *chip, char prof) | |
207 | { | |
208 | DE_ACT(("set_professional_spdif %d\n", prof)); | |
209 | if (prof) | |
210 | chip->comm_page->flags |= | |
211 | __constant_cpu_to_le32(DSP_FLAG_PROFESSIONAL_SPDIF); | |
212 | else | |
213 | chip->comm_page->flags &= | |
214 | ~__constant_cpu_to_le32(DSP_FLAG_PROFESSIONAL_SPDIF); | |
215 | chip->professional_spdif = prof; | |
216 | return update_flags(chip); | |
217 | } |