1 /****************************************************************************
3 Copyright Echo Digital Audio Corporation (c) 1998 - 2004
7 This file is part of Echo Digital Audio's generic driver library.
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
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.
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,
24 *************************************************************************
26 Translation from C++ and adaptation for use in ALSA-Driver
27 were made by Giuliano Pochini <pochini@shiny.it>
29 ****************************************************************************/
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);
40 static int init_hw(struct echoaudio *chip, u16 device_id, u16 subdevice_id)
44 DE_INIT(("init_hw() - Layla20\n"));
45 if (snd_BUG_ON((subdevice_id & 0xfff0) != LAYLA20))
48 if ((err = init_dsp_comm_page(chip))) {
49 DE_INIT(("init_hw - could not initialize DSP comm page\n"));
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;
64 if ((err = load_firmware(chip)) < 0)
66 chip->bad_board = FALSE;
68 if ((err = init_line_levels(chip)) < 0)
71 err = set_professional_spdif(chip, TRUE);
73 DE_INIT(("init_hw done\n"));
79 static u32 detect_input_clocks(const struct echoaudio *chip)
81 u32 clocks_from_dsp, clock_bits;
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);
86 clock_bits = ECHO_CLOCK_BIT_INTERNAL;
88 if (clocks_from_dsp & GLDM_CLOCK_DETECT_BIT_SPDIF)
89 clock_bits |= ECHO_CLOCK_BIT_SPDIF;
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;
95 clock_bits |= ECHO_CLOCK_BIT_WORD;
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)
115 chip->asic_loaded = FALSE;
116 for (i = goodcnt = 0; i < 5; i++) {
117 send_vector(chip, DSP_VC_TEST_ASIC);
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"));
126 if (asic_status == ASIC_ALREADY_LOADED) {
127 if (++goodcnt == 3) {
128 chip->asic_loaded = TRUE;
138 /* Layla20 has an ASIC in the external box */
139 static int load_asic(struct echoaudio *chip)
143 if (chip->asic_loaded)
146 err = load_asic_generic(chip, DSP_FNC_LOAD_LAYLA_ASIC,
147 &card_fw[FW_LAYLA20_ASIC]);
151 /* Check if ASIC is alive and well. */
152 return check_asic_status(chip);
157 static int set_sample_rate(struct echoaudio *chip, u32 rate)
159 if (snd_BUG_ON(rate < 8000 || rate > 50000))
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;
172 if (wait_handshake(chip))
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);
184 static int set_input_clock(struct echoaudio *chip, u16 clock_source)
189 DE_ACT(("set_input_clock:\n"));
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;
197 case ECHO_CLOCK_SPDIF:
198 DE_ACT(("Set Layla20 clock to SPDIF\n"));
199 clock = LAYLA20_CLOCK_SPDIF;
201 case ECHO_CLOCK_WORD:
202 DE_ACT(("Set Layla20 clock to WORD\n"));
203 clock = LAYLA20_CLOCK_WORD;
205 case ECHO_CLOCK_SUPER:
206 DE_ACT(("Set Layla20 clock to SUPER\n"));
207 clock = LAYLA20_CLOCK_SUPER;
210 DE_ACT(("Input clock 0x%x not supported for Layla24\n",
214 chip->input_clock = clock_source;
216 chip->comm_page->input_clock = cpu_to_le16(clock);
217 clear_handshake(chip);
218 send_vector(chip, DSP_VC_UPDATE_CLOCKS);
221 set_sample_rate(chip, rate);
228 static int set_output_clock(struct echoaudio *chip, u16 clock)
230 DE_ACT(("set_output_clock: %d\n", clock));
232 case ECHO_CLOCK_SUPER:
233 clock = LAYLA20_OUTPUT_CLOCK_SUPER;
235 case ECHO_CLOCK_WORD:
236 clock = LAYLA20_OUTPUT_CLOCK_WORD;
239 DE_ACT(("set_output_clock wrong clock\n"));
243 if (wait_handshake(chip))
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);
254 /* Set input bus gain (one unit is 0.5dB !) */
255 static int set_input_gain(struct echoaudio *chip, u16 input, int gain)
257 if (snd_BUG_ON(input >= num_busses_in(chip)))
260 if (wait_handshake(chip))
263 chip->input_gain[input] = gain;
264 gain += GL20_INPUT_GAIN_MAGIC_NUMBER;
265 chip->comm_page->line_in_level[input] = gain;
271 /* Tell the DSP to reread the flags from the comm page */
272 static int update_flags(struct echoaudio *chip)
274 if (wait_handshake(chip))
276 clear_handshake(chip);
277 return send_vector(chip, DSP_VC_UPDATE_FLAGS);
282 static int set_professional_spdif(struct echoaudio *chip, char prof)
284 DE_ACT(("set_professional_spdif %d\n", prof));
286 chip->comm_page->flags |=
287 __constant_cpu_to_le32(DSP_FLAG_PROFESSIONAL_SPDIF);
289 chip->comm_page->flags &=
290 ~__constant_cpu_to_le32(DSP_FLAG_PROFESSIONAL_SPDIF);
291 chip->professional_spdif = prof;
292 return update_flags(chip);