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 write_control_reg(struct echoaudio *chip, u32 value, char force);
33 static int set_input_clock(struct echoaudio *chip, u16 clock);
34 static int set_professional_spdif(struct echoaudio *chip, char prof);
35 static int set_digital_mode(struct echoaudio *chip, u8 mode);
36 static int load_asic_generic(struct echoaudio *chip, u32 cmd,
37 const struct firmware *asic);
38 static int check_asic_status(struct echoaudio *chip);
41 static int init_hw(struct echoaudio *chip, u16 device_id, u16 subdevice_id)
45 DE_INIT(("init_hw() - Gina24\n"));
46 snd_assert((subdevice_id & 0xfff0) == GINA24, return -ENODEV);
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->input_clock_types =
57 ECHO_CLOCK_BIT_INTERNAL | ECHO_CLOCK_BIT_SPDIF |
58 ECHO_CLOCK_BIT_ESYNC | ECHO_CLOCK_BIT_ESYNC96 |
60 chip->professional_spdif = FALSE;
61 chip->digital_in_automute = TRUE;
62 chip->digital_mode = DIGITAL_MODE_SPDIF_RCA;
64 /* Gina24 comes in both '301 and '361 flavors */
65 if (chip->device_id == DEVICE_ID_56361) {
66 chip->dsp_code_to_load = &card_fw[FW_GINA24_361_DSP];
68 ECHOCAPS_HAS_DIGITAL_MODE_SPDIF_RCA |
69 ECHOCAPS_HAS_DIGITAL_MODE_SPDIF_OPTICAL |
70 ECHOCAPS_HAS_DIGITAL_MODE_ADAT;
72 chip->dsp_code_to_load = &card_fw[FW_GINA24_301_DSP];
74 ECHOCAPS_HAS_DIGITAL_MODE_SPDIF_RCA |
75 ECHOCAPS_HAS_DIGITAL_MODE_SPDIF_OPTICAL |
76 ECHOCAPS_HAS_DIGITAL_MODE_ADAT |
77 ECHOCAPS_HAS_DIGITAL_MODE_SPDIF_CDROM;
80 if ((err = load_firmware(chip)) < 0)
82 chip->bad_board = FALSE;
84 if ((err = init_line_levels(chip)) < 0)
86 err = set_digital_mode(chip, DIGITAL_MODE_SPDIF_RCA);
87 snd_assert(err >= 0, return err);
88 err = set_professional_spdif(chip, TRUE);
90 DE_INIT(("init_hw done\n"));
96 static u32 detect_input_clocks(const struct echoaudio *chip)
98 u32 clocks_from_dsp, clock_bits;
100 /* Map the DSP clock detect bits to the generic driver clock
102 clocks_from_dsp = le32_to_cpu(chip->comm_page->status_clocks);
104 clock_bits = ECHO_CLOCK_BIT_INTERNAL;
106 if (clocks_from_dsp & GML_CLOCK_DETECT_BIT_SPDIF)
107 clock_bits |= ECHO_CLOCK_BIT_SPDIF;
109 if (clocks_from_dsp & GML_CLOCK_DETECT_BIT_ADAT)
110 clock_bits |= ECHO_CLOCK_BIT_ADAT;
112 if (clocks_from_dsp & GML_CLOCK_DETECT_BIT_ESYNC)
113 clock_bits |= ECHO_CLOCK_BIT_ESYNC | ECHO_CLOCK_BIT_ESYNC96;
120 /* Gina24 has an ASIC on the PCI card which must be loaded for anything
121 interesting to happen. */
122 static int load_asic(struct echoaudio *chip)
126 const struct firmware *fw;
128 if (chip->asic_loaded)
131 /* Give the DSP a few milliseconds to settle down */
134 /* Pick the correct ASIC for '301 or '361 Gina24 */
135 if (chip->device_id == DEVICE_ID_56361)
136 fw = &card_fw[FW_GINA24_361_ASIC];
138 fw = &card_fw[FW_GINA24_301_ASIC];
140 if ((err = load_asic_generic(chip, DSP_FNC_LOAD_GINA24_ASIC, fw)) < 0)
143 chip->asic_code = fw;
145 /* Now give the new ASIC a little time to set up */
147 /* See if it worked */
148 err = check_asic_status(chip);
150 /* Set up the control register if the load succeeded -
151 48 kHz, internal clock, S/PDIF RCA mode */
153 control_reg = GML_CONVERTER_ENABLE | GML_48KHZ;
154 err = write_control_reg(chip, control_reg, TRUE);
156 DE_INIT(("load_asic() done\n"));
162 static int set_sample_rate(struct echoaudio *chip, u32 rate)
164 u32 control_reg, clock;
166 snd_assert(rate < 50000 || chip->digital_mode != DIGITAL_MODE_ADAT,
169 /* Only set the clock for internal mode. */
170 if (chip->input_clock != ECHO_CLOCK_INTERNAL) {
171 DE_ACT(("set_sample_rate: Cannot set sample rate - "
172 "clock not set to CLK_CLOCKININTERNAL\n"));
173 /* Save the rate anyhow */
174 chip->comm_page->sample_rate = cpu_to_le32(rate);
175 chip->sample_rate = rate;
181 control_reg = le32_to_cpu(chip->comm_page->control_register);
182 control_reg &= GML_CLOCK_CLEAR_MASK & GML_SPDIF_RATE_CLEAR_MASK;
192 clock = GML_48KHZ | GML_SPDIF_SAMPLE_RATE1;
196 /* Professional mode ? */
197 if (control_reg & GML_SPDIF_PRO_MODE)
198 clock |= GML_SPDIF_SAMPLE_RATE0;
201 clock = GML_32KHZ | GML_SPDIF_SAMPLE_RATE0 |
202 GML_SPDIF_SAMPLE_RATE1;
217 DE_ACT(("set_sample_rate: %d invalid!\n", rate));
221 control_reg |= clock;
223 chip->comm_page->sample_rate = cpu_to_le32(rate); /* ignored by the DSP */
224 chip->sample_rate = rate;
225 DE_ACT(("set_sample_rate: %d clock %d\n", rate, clock));
227 return write_control_reg(chip, control_reg, FALSE);
232 static int set_input_clock(struct echoaudio *chip, u16 clock)
234 u32 control_reg, clocks_from_dsp;
236 DE_ACT(("set_input_clock:\n"));
238 /* Mask off the clock select bits */
239 control_reg = le32_to_cpu(chip->comm_page->control_register) &
240 GML_CLOCK_CLEAR_MASK;
241 clocks_from_dsp = le32_to_cpu(chip->comm_page->status_clocks);
244 case ECHO_CLOCK_INTERNAL:
245 DE_ACT(("Set Gina24 clock to INTERNAL\n"));
246 chip->input_clock = ECHO_CLOCK_INTERNAL;
247 return set_sample_rate(chip, chip->sample_rate);
248 case ECHO_CLOCK_SPDIF:
249 if (chip->digital_mode == DIGITAL_MODE_ADAT)
251 DE_ACT(("Set Gina24 clock to SPDIF\n"));
252 control_reg |= GML_SPDIF_CLOCK;
253 if (clocks_from_dsp & GML_CLOCK_DETECT_BIT_SPDIF96)
254 control_reg |= GML_DOUBLE_SPEED_MODE;
256 control_reg &= ~GML_DOUBLE_SPEED_MODE;
258 case ECHO_CLOCK_ADAT:
259 if (chip->digital_mode != DIGITAL_MODE_ADAT)
261 DE_ACT(("Set Gina24 clock to ADAT\n"));
262 control_reg |= GML_ADAT_CLOCK;
263 control_reg &= ~GML_DOUBLE_SPEED_MODE;
265 case ECHO_CLOCK_ESYNC:
266 DE_ACT(("Set Gina24 clock to ESYNC\n"));
267 control_reg |= GML_ESYNC_CLOCK;
268 control_reg &= ~GML_DOUBLE_SPEED_MODE;
270 case ECHO_CLOCK_ESYNC96:
271 DE_ACT(("Set Gina24 clock to ESYNC96\n"));
272 control_reg |= GML_ESYNC_CLOCK | GML_DOUBLE_SPEED_MODE;
275 DE_ACT(("Input clock 0x%x not supported for Gina24\n", clock));
279 chip->input_clock = clock;
280 return write_control_reg(chip, control_reg, TRUE);
285 static int dsp_set_digital_mode(struct echoaudio *chip, u8 mode)
288 int err, incompatible_clock;
290 /* Set clock to "internal" if it's not compatible with the new mode */
291 incompatible_clock = FALSE;
293 case DIGITAL_MODE_SPDIF_OPTICAL:
294 case DIGITAL_MODE_SPDIF_CDROM:
295 case DIGITAL_MODE_SPDIF_RCA:
296 if (chip->input_clock == ECHO_CLOCK_ADAT)
297 incompatible_clock = TRUE;
299 case DIGITAL_MODE_ADAT:
300 if (chip->input_clock == ECHO_CLOCK_SPDIF)
301 incompatible_clock = TRUE;
304 DE_ACT(("Digital mode not supported: %d\n", mode));
308 spin_lock_irq(&chip->lock);
310 if (incompatible_clock) { /* Switch to 48KHz, internal */
311 chip->sample_rate = 48000;
312 set_input_clock(chip, ECHO_CLOCK_INTERNAL);
315 /* Clear the current digital mode */
316 control_reg = le32_to_cpu(chip->comm_page->control_register);
317 control_reg &= GML_DIGITAL_MODE_CLEAR_MASK;
319 /* Tweak the control reg */
321 case DIGITAL_MODE_SPDIF_OPTICAL:
322 control_reg |= GML_SPDIF_OPTICAL_MODE;
324 case DIGITAL_MODE_SPDIF_CDROM:
325 /* '361 Gina24 cards do not have the S/PDIF CD-ROM mode */
326 if (chip->device_id == DEVICE_ID_56301)
327 control_reg |= GML_SPDIF_CDROM_MODE;
329 case DIGITAL_MODE_SPDIF_RCA:
330 /* GML_SPDIF_OPTICAL_MODE bit cleared */
332 case DIGITAL_MODE_ADAT:
333 control_reg |= GML_ADAT_MODE;
334 control_reg &= ~GML_DOUBLE_SPEED_MODE;
338 err = write_control_reg(chip, control_reg, TRUE);
339 spin_unlock_irq(&chip->lock);
342 chip->digital_mode = mode;
344 DE_ACT(("set_digital_mode to %d\n", chip->digital_mode));
345 return incompatible_clock;