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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 read_dsp(struct echoaudio *chip, u32 *data); | |
33 | static int set_professional_spdif(struct echoaudio *chip, char prof); | |
19b50063 | 34 | static int load_asic_generic(struct echoaudio *chip, u32 cmd, short asic); |
dd7b254d GP |
35 | static int check_asic_status(struct echoaudio *chip); |
36 | static int update_flags(struct echoaudio *chip); | |
37 | ||
38 | ||
39 | static int init_hw(struct echoaudio *chip, u16 device_id, u16 subdevice_id) | |
40 | { | |
41 | int err; | |
42 | ||
da3cec35 TI |
43 | if (snd_BUG_ON((subdevice_id & 0xfff0) != LAYLA20)) |
44 | return -ENODEV; | |
dd7b254d GP |
45 | |
46 | if ((err = init_dsp_comm_page(chip))) { | |
b5b4a41b SM |
47 | dev_err(chip->card->dev, |
48 | "init_hw - could not initialize DSP comm page\n"); | |
dd7b254d GP |
49 | return err; |
50 | } | |
51 | ||
52 | chip->device_id = device_id; | |
53 | chip->subdevice_id = subdevice_id; | |
3f6175ec MB |
54 | chip->bad_board = true; |
55 | chip->has_midi = true; | |
19b50063 | 56 | chip->dsp_code_to_load = FW_LAYLA20_DSP; |
dd7b254d GP |
57 | chip->input_clock_types = |
58 | ECHO_CLOCK_BIT_INTERNAL | ECHO_CLOCK_BIT_SPDIF | | |
59 | ECHO_CLOCK_BIT_WORD | ECHO_CLOCK_BIT_SUPER; | |
60 | chip->output_clock_types = | |
61 | ECHO_CLOCK_BIT_WORD | ECHO_CLOCK_BIT_SUPER; | |
62 | ||
63 | if ((err = load_firmware(chip)) < 0) | |
64 | return err; | |
3f6175ec | 65 | chip->bad_board = false; |
dd7b254d | 66 | |
dd7b254d GP |
67 | return err; |
68 | } | |
69 | ||
70 | ||
71 | ||
ad3499f4 GP |
72 | static int set_mixer_defaults(struct echoaudio *chip) |
73 | { | |
3f6175ec | 74 | chip->professional_spdif = false; |
ad3499f4 GP |
75 | return init_line_levels(chip); |
76 | } | |
77 | ||
78 | ||
79 | ||
dd7b254d GP |
80 | static u32 detect_input_clocks(const struct echoaudio *chip) |
81 | { | |
82 | u32 clocks_from_dsp, clock_bits; | |
83 | ||
84 | /* Map the DSP clock detect bits to the generic driver clock 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 | if (clocks_from_dsp & GLDM_CLOCK_DETECT_BIT_WORD) { | |
93 | if (clocks_from_dsp & GLDM_CLOCK_DETECT_BIT_SUPER) | |
94 | clock_bits |= ECHO_CLOCK_BIT_SUPER; | |
95 | else | |
96 | clock_bits |= ECHO_CLOCK_BIT_WORD; | |
97 | } | |
98 | ||
99 | return clock_bits; | |
100 | } | |
101 | ||
102 | ||
103 | ||
104 | /* ASIC status check - some cards have one or two ASICs that need to be | |
105 | loaded. Once that load is complete, this function is called to see if | |
106 | the load was successful. | |
107 | If this load fails, it does not necessarily mean that the hardware is | |
108 | defective - the external box may be disconnected or turned off. | |
109 | This routine sometimes fails for Layla20; for Layla20, the loop runs | |
110 | 5 times and succeeds if it wins on three of the loops. */ | |
111 | static int check_asic_status(struct echoaudio *chip) | |
112 | { | |
113 | u32 asic_status; | |
114 | int goodcnt, i; | |
115 | ||
3f6175ec | 116 | chip->asic_loaded = false; |
dd7b254d GP |
117 | for (i = goodcnt = 0; i < 5; i++) { |
118 | send_vector(chip, DSP_VC_TEST_ASIC); | |
119 | ||
120 | /* The DSP will return a value to indicate whether or not | |
121 | the ASIC is currently loaded */ | |
122 | if (read_dsp(chip, &asic_status) < 0) { | |
b5b4a41b SM |
123 | dev_err(chip->card->dev, |
124 | "check_asic_status: failed on read_dsp\n"); | |
dd7b254d GP |
125 | return -EIO; |
126 | } | |
127 | ||
128 | if (asic_status == ASIC_ALREADY_LOADED) { | |
129 | if (++goodcnt == 3) { | |
3f6175ec | 130 | chip->asic_loaded = true; |
dd7b254d GP |
131 | return 0; |
132 | } | |
133 | } | |
134 | } | |
135 | return -EIO; | |
136 | } | |
137 | ||
138 | ||
139 | ||
140 | /* Layla20 has an ASIC in the external box */ | |
141 | static int load_asic(struct echoaudio *chip) | |
142 | { | |
143 | int err; | |
144 | ||
145 | if (chip->asic_loaded) | |
146 | return 0; | |
147 | ||
148 | err = load_asic_generic(chip, DSP_FNC_LOAD_LAYLA_ASIC, | |
19b50063 | 149 | FW_LAYLA20_ASIC); |
dd7b254d GP |
150 | if (err < 0) |
151 | return err; | |
152 | ||
153 | /* Check if ASIC is alive and well. */ | |
154 | return check_asic_status(chip); | |
155 | } | |
156 | ||
157 | ||
158 | ||
159 | static int set_sample_rate(struct echoaudio *chip, u32 rate) | |
160 | { | |
da3cec35 TI |
161 | if (snd_BUG_ON(rate < 8000 || rate > 50000)) |
162 | return -EINVAL; | |
dd7b254d GP |
163 | |
164 | /* Only set the clock for internal mode. Do not return failure, | |
165 | simply treat it as a non-event. */ | |
166 | if (chip->input_clock != ECHO_CLOCK_INTERNAL) { | |
b5b4a41b SM |
167 | dev_warn(chip->card->dev, |
168 | "Cannot set sample rate - clock not set to CLK_CLOCKININTERNAL\n"); | |
dd7b254d GP |
169 | chip->comm_page->sample_rate = cpu_to_le32(rate); |
170 | chip->sample_rate = rate; | |
171 | return 0; | |
172 | } | |
173 | ||
174 | if (wait_handshake(chip)) | |
175 | return -EIO; | |
176 | ||
b5b4a41b | 177 | dev_dbg(chip->card->dev, "set_sample_rate(%d)\n", rate); |
dd7b254d GP |
178 | chip->sample_rate = rate; |
179 | chip->comm_page->sample_rate = cpu_to_le32(rate); | |
180 | clear_handshake(chip); | |
181 | return send_vector(chip, DSP_VC_SET_LAYLA_SAMPLE_RATE); | |
182 | } | |
183 | ||
184 | ||
185 | ||
186 | static int set_input_clock(struct echoaudio *chip, u16 clock_source) | |
187 | { | |
188 | u16 clock; | |
189 | u32 rate; | |
190 | ||
dd7b254d GP |
191 | rate = 0; |
192 | switch (clock_source) { | |
193 | case ECHO_CLOCK_INTERNAL: | |
dd7b254d GP |
194 | rate = chip->sample_rate; |
195 | clock = LAYLA20_CLOCK_INTERNAL; | |
196 | break; | |
197 | case ECHO_CLOCK_SPDIF: | |
dd7b254d GP |
198 | clock = LAYLA20_CLOCK_SPDIF; |
199 | break; | |
200 | case ECHO_CLOCK_WORD: | |
dd7b254d GP |
201 | clock = LAYLA20_CLOCK_WORD; |
202 | break; | |
203 | case ECHO_CLOCK_SUPER: | |
dd7b254d GP |
204 | clock = LAYLA20_CLOCK_SUPER; |
205 | break; | |
206 | default: | |
b5b4a41b SM |
207 | dev_err(chip->card->dev, |
208 | "Input clock 0x%x not supported for Layla24\n", | |
209 | clock_source); | |
dd7b254d GP |
210 | return -EINVAL; |
211 | } | |
212 | chip->input_clock = clock_source; | |
213 | ||
214 | chip->comm_page->input_clock = cpu_to_le16(clock); | |
215 | clear_handshake(chip); | |
216 | send_vector(chip, DSP_VC_UPDATE_CLOCKS); | |
217 | ||
218 | if (rate) | |
219 | set_sample_rate(chip, rate); | |
220 | ||
221 | return 0; | |
222 | } | |
223 | ||
224 | ||
225 | ||
226 | static int set_output_clock(struct echoaudio *chip, u16 clock) | |
227 | { | |
dd7b254d GP |
228 | switch (clock) { |
229 | case ECHO_CLOCK_SUPER: | |
230 | clock = LAYLA20_OUTPUT_CLOCK_SUPER; | |
231 | break; | |
232 | case ECHO_CLOCK_WORD: | |
233 | clock = LAYLA20_OUTPUT_CLOCK_WORD; | |
234 | break; | |
235 | default: | |
b5b4a41b | 236 | dev_err(chip->card->dev, "set_output_clock wrong clock\n"); |
dd7b254d GP |
237 | return -EINVAL; |
238 | } | |
239 | ||
240 | if (wait_handshake(chip)) | |
241 | return -EIO; | |
242 | ||
243 | chip->comm_page->output_clock = cpu_to_le16(clock); | |
244 | chip->output_clock = clock; | |
245 | clear_handshake(chip); | |
246 | return send_vector(chip, DSP_VC_UPDATE_CLOCKS); | |
247 | } | |
248 | ||
249 | ||
250 | ||
251 | /* Set input bus gain (one unit is 0.5dB !) */ | |
252 | static int set_input_gain(struct echoaudio *chip, u16 input, int gain) | |
253 | { | |
da3cec35 TI |
254 | if (snd_BUG_ON(input >= num_busses_in(chip))) |
255 | return -EINVAL; | |
dd7b254d GP |
256 | |
257 | if (wait_handshake(chip)) | |
258 | return -EIO; | |
259 | ||
260 | chip->input_gain[input] = gain; | |
261 | gain += GL20_INPUT_GAIN_MAGIC_NUMBER; | |
262 | chip->comm_page->line_in_level[input] = gain; | |
263 | return 0; | |
264 | } | |
265 | ||
266 | ||
267 | ||
268 | /* Tell the DSP to reread the flags from the comm page */ | |
269 | static int update_flags(struct echoaudio *chip) | |
270 | { | |
271 | if (wait_handshake(chip)) | |
272 | return -EIO; | |
273 | clear_handshake(chip); | |
274 | return send_vector(chip, DSP_VC_UPDATE_FLAGS); | |
275 | } | |
276 | ||
277 | ||
278 | ||
279 | static int set_professional_spdif(struct echoaudio *chip, char prof) | |
280 | { | |
dd7b254d GP |
281 | if (prof) |
282 | chip->comm_page->flags |= | |
e930e995 | 283 | cpu_to_le32(DSP_FLAG_PROFESSIONAL_SPDIF); |
dd7b254d GP |
284 | else |
285 | chip->comm_page->flags &= | |
e930e995 | 286 | ~cpu_to_le32(DSP_FLAG_PROFESSIONAL_SPDIF); |
dd7b254d GP |
287 | chip->professional_spdif = prof; |
288 | return update_flags(chip); | |
289 | } |