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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); | |
34 | static int load_asic_generic(struct echoaudio *chip, u32 cmd, | |
35 | const struct firmware *asic); | |
36 | static int check_asic_status(struct echoaudio *chip); | |
37 | static int update_flags(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() - Layla20\n")); | |
da3cec35 TI |
45 | if (snd_BUG_ON((subdevice_id & 0xfff0) != LAYLA20)) |
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; | |
56 | chip->has_midi = TRUE; | |
57 | chip->dsp_code_to_load = &card_fw[FW_LAYLA20_DSP]; | |
58 | chip->input_clock_types = | |
59 | ECHO_CLOCK_BIT_INTERNAL | ECHO_CLOCK_BIT_SPDIF | | |
60 | ECHO_CLOCK_BIT_WORD | ECHO_CLOCK_BIT_SUPER; | |
61 | chip->output_clock_types = | |
62 | ECHO_CLOCK_BIT_WORD | ECHO_CLOCK_BIT_SUPER; | |
63 | ||
64 | if ((err = load_firmware(chip)) < 0) | |
65 | return err; | |
66 | chip->bad_board = FALSE; | |
67 | ||
68 | if ((err = init_line_levels(chip)) < 0) | |
69 | return err; | |
70 | ||
71 | err = set_professional_spdif(chip, TRUE); | |
72 | ||
73 | DE_INIT(("init_hw done\n")); | |
74 | return err; | |
75 | } | |
76 | ||
77 | ||
78 | ||
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 detect bits */ | |
84 | clocks_from_dsp = le32_to_cpu(chip->comm_page->status_clocks); | |
85 | ||
86 | clock_bits = ECHO_CLOCK_BIT_INTERNAL; | |
87 | ||
88 | if (clocks_from_dsp & GLDM_CLOCK_DETECT_BIT_SPDIF) | |
89 | clock_bits |= ECHO_CLOCK_BIT_SPDIF; | |
90 | ||
91 | if (clocks_from_dsp & GLDM_CLOCK_DETECT_BIT_WORD) { | |
92 | if (clocks_from_dsp & GLDM_CLOCK_DETECT_BIT_SUPER) | |
93 | clock_bits |= ECHO_CLOCK_BIT_SUPER; | |
94 | else | |
95 | clock_bits |= ECHO_CLOCK_BIT_WORD; | |
96 | } | |
97 | ||
98 | return clock_bits; | |
99 | } | |
100 | ||
101 | ||
102 | ||
103 | /* ASIC status check - some cards have one or two ASICs that need to be | |
104 | loaded. Once that load is complete, this function is called to see if | |
105 | the load was successful. | |
106 | If this load fails, it does not necessarily mean that the hardware is | |
107 | defective - the external box may be disconnected or turned off. | |
108 | This routine sometimes fails for Layla20; for Layla20, the loop runs | |
109 | 5 times and succeeds if it wins on three of the loops. */ | |
110 | static int check_asic_status(struct echoaudio *chip) | |
111 | { | |
112 | u32 asic_status; | |
113 | int goodcnt, i; | |
114 | ||
115 | chip->asic_loaded = FALSE; | |
116 | for (i = goodcnt = 0; i < 5; i++) { | |
117 | send_vector(chip, DSP_VC_TEST_ASIC); | |
118 | ||
119 | /* The DSP will return a value to indicate whether or not | |
120 | the ASIC is currently loaded */ | |
121 | if (read_dsp(chip, &asic_status) < 0) { | |
122 | DE_ACT(("check_asic_status: failed on read_dsp\n")); | |
123 | return -EIO; | |
124 | } | |
125 | ||
126 | if (asic_status == ASIC_ALREADY_LOADED) { | |
127 | if (++goodcnt == 3) { | |
128 | chip->asic_loaded = TRUE; | |
129 | return 0; | |
130 | } | |
131 | } | |
132 | } | |
133 | return -EIO; | |
134 | } | |
135 | ||
136 | ||
137 | ||
138 | /* Layla20 has an ASIC in the external box */ | |
139 | static int load_asic(struct echoaudio *chip) | |
140 | { | |
141 | int err; | |
142 | ||
143 | if (chip->asic_loaded) | |
144 | return 0; | |
145 | ||
146 | err = load_asic_generic(chip, DSP_FNC_LOAD_LAYLA_ASIC, | |
147 | &card_fw[FW_LAYLA20_ASIC]); | |
148 | if (err < 0) | |
149 | return err; | |
150 | ||
151 | /* Check if ASIC is alive and well. */ | |
152 | return check_asic_status(chip); | |
153 | } | |
154 | ||
155 | ||
156 | ||
157 | static int set_sample_rate(struct echoaudio *chip, u32 rate) | |
158 | { | |
da3cec35 TI |
159 | if (snd_BUG_ON(rate < 8000 || rate > 50000)) |
160 | return -EINVAL; | |
dd7b254d GP |
161 | |
162 | /* Only set the clock for internal mode. Do not return failure, | |
163 | simply treat it as a non-event. */ | |
164 | if (chip->input_clock != ECHO_CLOCK_INTERNAL) { | |
165 | DE_ACT(("set_sample_rate: Cannot set sample rate - " | |
166 | "clock not set to CLK_CLOCKININTERNAL\n")); | |
167 | chip->comm_page->sample_rate = cpu_to_le32(rate); | |
168 | chip->sample_rate = rate; | |
169 | return 0; | |
170 | } | |
171 | ||
172 | if (wait_handshake(chip)) | |
173 | return -EIO; | |
174 | ||
175 | DE_ACT(("set_sample_rate(%d)\n", rate)); | |
176 | chip->sample_rate = rate; | |
177 | chip->comm_page->sample_rate = cpu_to_le32(rate); | |
178 | clear_handshake(chip); | |
179 | return send_vector(chip, DSP_VC_SET_LAYLA_SAMPLE_RATE); | |
180 | } | |
181 | ||
182 | ||
183 | ||
184 | static int set_input_clock(struct echoaudio *chip, u16 clock_source) | |
185 | { | |
186 | u16 clock; | |
187 | u32 rate; | |
188 | ||
189 | DE_ACT(("set_input_clock:\n")); | |
190 | rate = 0; | |
191 | switch (clock_source) { | |
192 | case ECHO_CLOCK_INTERNAL: | |
193 | DE_ACT(("Set Layla20 clock to INTERNAL\n")); | |
194 | rate = chip->sample_rate; | |
195 | clock = LAYLA20_CLOCK_INTERNAL; | |
196 | break; | |
197 | case ECHO_CLOCK_SPDIF: | |
198 | DE_ACT(("Set Layla20 clock to SPDIF\n")); | |
199 | clock = LAYLA20_CLOCK_SPDIF; | |
200 | break; | |
201 | case ECHO_CLOCK_WORD: | |
202 | DE_ACT(("Set Layla20 clock to WORD\n")); | |
203 | clock = LAYLA20_CLOCK_WORD; | |
204 | break; | |
205 | case ECHO_CLOCK_SUPER: | |
206 | DE_ACT(("Set Layla20 clock to SUPER\n")); | |
207 | clock = LAYLA20_CLOCK_SUPER; | |
208 | break; | |
209 | default: | |
210 | DE_ACT(("Input clock 0x%x not supported for Layla24\n", | |
211 | clock_source)); | |
212 | return -EINVAL; | |
213 | } | |
214 | chip->input_clock = clock_source; | |
215 | ||
216 | chip->comm_page->input_clock = cpu_to_le16(clock); | |
217 | clear_handshake(chip); | |
218 | send_vector(chip, DSP_VC_UPDATE_CLOCKS); | |
219 | ||
220 | if (rate) | |
221 | set_sample_rate(chip, rate); | |
222 | ||
223 | return 0; | |
224 | } | |
225 | ||
226 | ||
227 | ||
228 | static int set_output_clock(struct echoaudio *chip, u16 clock) | |
229 | { | |
230 | DE_ACT(("set_output_clock: %d\n", clock)); | |
231 | switch (clock) { | |
232 | case ECHO_CLOCK_SUPER: | |
233 | clock = LAYLA20_OUTPUT_CLOCK_SUPER; | |
234 | break; | |
235 | case ECHO_CLOCK_WORD: | |
236 | clock = LAYLA20_OUTPUT_CLOCK_WORD; | |
237 | break; | |
238 | default: | |
239 | DE_ACT(("set_output_clock wrong clock\n")); | |
240 | return -EINVAL; | |
241 | } | |
242 | ||
243 | if (wait_handshake(chip)) | |
244 | return -EIO; | |
245 | ||
246 | chip->comm_page->output_clock = cpu_to_le16(clock); | |
247 | chip->output_clock = clock; | |
248 | clear_handshake(chip); | |
249 | return send_vector(chip, DSP_VC_UPDATE_CLOCKS); | |
250 | } | |
251 | ||
252 | ||
253 | ||
254 | /* Set input bus gain (one unit is 0.5dB !) */ | |
255 | static int set_input_gain(struct echoaudio *chip, u16 input, int gain) | |
256 | { | |
da3cec35 TI |
257 | if (snd_BUG_ON(input >= num_busses_in(chip))) |
258 | return -EINVAL; | |
dd7b254d GP |
259 | |
260 | if (wait_handshake(chip)) | |
261 | return -EIO; | |
262 | ||
263 | chip->input_gain[input] = gain; | |
264 | gain += GL20_INPUT_GAIN_MAGIC_NUMBER; | |
265 | chip->comm_page->line_in_level[input] = gain; | |
266 | return 0; | |
267 | } | |
268 | ||
269 | ||
270 | ||
271 | /* Tell the DSP to reread the flags from the comm page */ | |
272 | static int update_flags(struct echoaudio *chip) | |
273 | { | |
274 | if (wait_handshake(chip)) | |
275 | return -EIO; | |
276 | clear_handshake(chip); | |
277 | return send_vector(chip, DSP_VC_UPDATE_FLAGS); | |
278 | } | |
279 | ||
280 | ||
281 | ||
282 | static int set_professional_spdif(struct echoaudio *chip, char prof) | |
283 | { | |
284 | DE_ACT(("set_professional_spdif %d\n", prof)); | |
285 | if (prof) | |
286 | chip->comm_page->flags |= | |
287 | __constant_cpu_to_le32(DSP_FLAG_PROFESSIONAL_SPDIF); | |
288 | else | |
289 | chip->comm_page->flags &= | |
290 | ~__constant_cpu_to_le32(DSP_FLAG_PROFESSIONAL_SPDIF); | |
291 | chip->professional_spdif = prof; | |
292 | return update_flags(chip); | |
293 | } |