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, short asic);
35 static int check_asic_status(struct echoaudio *chip);
36 static int update_flags(struct echoaudio *chip);
39 static int init_hw(struct echoaudio *chip, u16 device_id, u16 subdevice_id)
43 if (snd_BUG_ON((subdevice_id & 0xfff0) != LAYLA20))
46 err = init_dsp_comm_page(chip);
48 dev_err(chip->card->dev,
49 "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 = 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 err = load_firmware(chip);
67 chip->bad_board = false;
74 static int set_mixer_defaults(struct echoaudio *chip)
76 chip->professional_spdif = false;
77 return init_line_levels(chip);
82 static u32 detect_input_clocks(const struct echoaudio *chip)
84 u32 clocks_from_dsp, clock_bits;
86 /* Map the DSP clock detect bits to the generic driver clock detect bits */
87 clocks_from_dsp = le32_to_cpu(chip->comm_page->status_clocks);
89 clock_bits = ECHO_CLOCK_BIT_INTERNAL;
91 if (clocks_from_dsp & GLDM_CLOCK_DETECT_BIT_SPDIF)
92 clock_bits |= ECHO_CLOCK_BIT_SPDIF;
94 if (clocks_from_dsp & GLDM_CLOCK_DETECT_BIT_WORD) {
95 if (clocks_from_dsp & GLDM_CLOCK_DETECT_BIT_SUPER)
96 clock_bits |= ECHO_CLOCK_BIT_SUPER;
98 clock_bits |= ECHO_CLOCK_BIT_WORD;
106 /* ASIC status check - some cards have one or two ASICs that need to be
107 loaded. Once that load is complete, this function is called to see if
108 the load was successful.
109 If this load fails, it does not necessarily mean that the hardware is
110 defective - the external box may be disconnected or turned off.
111 This routine sometimes fails for Layla20; for Layla20, the loop runs
112 5 times and succeeds if it wins on three of the loops. */
113 static int check_asic_status(struct echoaudio *chip)
118 chip->asic_loaded = false;
119 for (i = goodcnt = 0; i < 5; i++) {
120 send_vector(chip, DSP_VC_TEST_ASIC);
122 /* The DSP will return a value to indicate whether or not
123 the ASIC is currently loaded */
124 if (read_dsp(chip, &asic_status) < 0) {
125 dev_err(chip->card->dev,
126 "check_asic_status: failed on read_dsp\n");
130 if (asic_status == ASIC_ALREADY_LOADED) {
131 if (++goodcnt == 3) {
132 chip->asic_loaded = true;
142 /* Layla20 has an ASIC in the external box */
143 static int load_asic(struct echoaudio *chip)
147 if (chip->asic_loaded)
150 err = load_asic_generic(chip, DSP_FNC_LOAD_LAYLA_ASIC,
155 /* Check if ASIC is alive and well. */
156 return check_asic_status(chip);
161 static int set_sample_rate(struct echoaudio *chip, u32 rate)
163 if (snd_BUG_ON(rate < 8000 || rate > 50000))
166 /* Only set the clock for internal mode. Do not return failure,
167 simply treat it as a non-event. */
168 if (chip->input_clock != ECHO_CLOCK_INTERNAL) {
169 dev_warn(chip->card->dev,
170 "Cannot set sample rate - clock not set to CLK_CLOCKININTERNAL\n");
171 chip->comm_page->sample_rate = cpu_to_le32(rate);
172 chip->sample_rate = rate;
176 if (wait_handshake(chip))
179 dev_dbg(chip->card->dev, "set_sample_rate(%d)\n", rate);
180 chip->sample_rate = rate;
181 chip->comm_page->sample_rate = cpu_to_le32(rate);
182 clear_handshake(chip);
183 return send_vector(chip, DSP_VC_SET_LAYLA_SAMPLE_RATE);
188 static int set_input_clock(struct echoaudio *chip, u16 clock_source)
194 switch (clock_source) {
195 case ECHO_CLOCK_INTERNAL:
196 rate = chip->sample_rate;
197 clock = LAYLA20_CLOCK_INTERNAL;
199 case ECHO_CLOCK_SPDIF:
200 clock = LAYLA20_CLOCK_SPDIF;
202 case ECHO_CLOCK_WORD:
203 clock = LAYLA20_CLOCK_WORD;
205 case ECHO_CLOCK_SUPER:
206 clock = LAYLA20_CLOCK_SUPER;
209 dev_err(chip->card->dev,
210 "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)
231 case ECHO_CLOCK_SUPER:
232 clock = LAYLA20_OUTPUT_CLOCK_SUPER;
234 case ECHO_CLOCK_WORD:
235 clock = LAYLA20_OUTPUT_CLOCK_WORD;
238 dev_err(chip->card->dev, "set_output_clock wrong clock\n");
242 if (wait_handshake(chip))
245 chip->comm_page->output_clock = cpu_to_le16(clock);
246 chip->output_clock = clock;
247 clear_handshake(chip);
248 return send_vector(chip, DSP_VC_UPDATE_CLOCKS);
253 /* Set input bus gain (one unit is 0.5dB !) */
254 static int set_input_gain(struct echoaudio *chip, u16 input, int gain)
256 if (snd_BUG_ON(input >= num_busses_in(chip)))
259 if (wait_handshake(chip))
262 chip->input_gain[input] = gain;
263 gain += GL20_INPUT_GAIN_MAGIC_NUMBER;
264 chip->comm_page->line_in_level[input] = gain;
270 /* Tell the DSP to reread the flags from the comm page */
271 static int update_flags(struct echoaudio *chip)
273 if (wait_handshake(chip))
275 clear_handshake(chip);
276 return send_vector(chip, DSP_VC_UPDATE_FLAGS);
281 static int set_professional_spdif(struct echoaudio *chip, char prof)
284 chip->comm_page->flags |=
285 cpu_to_le32(DSP_FLAG_PROFESSIONAL_SPDIF);
287 chip->comm_page->flags &=
288 ~cpu_to_le32(DSP_FLAG_PROFESSIONAL_SPDIF);
289 chip->professional_spdif = prof;
290 return update_flags(chip);