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 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, short asic); 37 static int check_asic_status(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 if (snd_BUG_ON((subdevice_id & 0xfff0) != MONA)) 45 return -ENODEV; 46 47 if ((err = init_dsp_comm_page(chip))) { 48 dev_err(chip->card->dev, 49 "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->input_clock_types = 57 ECHO_CLOCK_BIT_INTERNAL | ECHO_CLOCK_BIT_SPDIF | 58 ECHO_CLOCK_BIT_WORD | ECHO_CLOCK_BIT_ADAT; 59 chip->digital_modes = 60 ECHOCAPS_HAS_DIGITAL_MODE_SPDIF_RCA | 61 ECHOCAPS_HAS_DIGITAL_MODE_SPDIF_OPTICAL | 62 ECHOCAPS_HAS_DIGITAL_MODE_ADAT; 63 64 /* Mona comes in both '301 and '361 flavors */ 65 if (chip->device_id == DEVICE_ID_56361) 66 chip->dsp_code_to_load = FW_MONA_361_DSP; 67 else 68 chip->dsp_code_to_load = FW_MONA_301_DSP; 69 70 if ((err = load_firmware(chip)) < 0) 71 return err; 72 chip->bad_board = false; 73 74 return err; 75 } 76 77 78 79 static int set_mixer_defaults(struct echoaudio *chip) 80 { 81 chip->digital_mode = DIGITAL_MODE_SPDIF_RCA; 82 chip->professional_spdif = false; 83 chip->digital_in_automute = true; 84 return init_line_levels(chip); 85 } 86 87 88 89 static u32 detect_input_clocks(const struct echoaudio *chip) 90 { 91 u32 clocks_from_dsp, clock_bits; 92 93 /* Map the DSP clock detect bits to the generic driver clock 94 detect bits */ 95 clocks_from_dsp = le32_to_cpu(chip->comm_page->status_clocks); 96 97 clock_bits = ECHO_CLOCK_BIT_INTERNAL; 98 99 if (clocks_from_dsp & GML_CLOCK_DETECT_BIT_SPDIF) 100 clock_bits |= ECHO_CLOCK_BIT_SPDIF; 101 102 if (clocks_from_dsp & GML_CLOCK_DETECT_BIT_ADAT) 103 clock_bits |= ECHO_CLOCK_BIT_ADAT; 104 105 if (clocks_from_dsp & GML_CLOCK_DETECT_BIT_WORD) 106 clock_bits |= ECHO_CLOCK_BIT_WORD; 107 108 return clock_bits; 109 } 110 111 112 113 /* Mona has an ASIC on the PCI card and another ASIC in the external box; 114 both need to be loaded. */ 115 static int load_asic(struct echoaudio *chip) 116 { 117 u32 control_reg; 118 int err; 119 short asic; 120 121 if (chip->asic_loaded) 122 return 0; 123 124 mdelay(10); 125 126 if (chip->device_id == DEVICE_ID_56361) 127 asic = FW_MONA_361_1_ASIC48; 128 else 129 asic = FW_MONA_301_1_ASIC48; 130 131 err = load_asic_generic(chip, DSP_FNC_LOAD_MONA_PCI_CARD_ASIC, asic); 132 if (err < 0) 133 return err; 134 135 chip->asic_code = asic; 136 mdelay(10); 137 138 /* Do the external one */ 139 err = load_asic_generic(chip, DSP_FNC_LOAD_MONA_EXTERNAL_ASIC, 140 FW_MONA_2_ASIC); 141 if (err < 0) 142 return err; 143 144 mdelay(10); 145 err = check_asic_status(chip); 146 147 /* Set up the control register if the load succeeded - 148 48 kHz, internal clock, S/PDIF RCA mode */ 149 if (!err) { 150 control_reg = GML_CONVERTER_ENABLE | GML_48KHZ; 151 err = write_control_reg(chip, control_reg, true); 152 } 153 154 return err; 155 } 156 157 158 159 /* Depending on what digital mode you want, Mona needs different ASICs 160 loaded. This function checks the ASIC needed for the new mode and sees 161 if it matches the one already loaded. */ 162 static int switch_asic(struct echoaudio *chip, char double_speed) 163 { 164 int err; 165 short asic; 166 167 /* Check the clock detect bits to see if this is 168 a single-speed clock or a double-speed clock; load 169 a new ASIC if necessary. */ 170 if (chip->device_id == DEVICE_ID_56361) { 171 if (double_speed) 172 asic = FW_MONA_361_1_ASIC96; 173 else 174 asic = FW_MONA_361_1_ASIC48; 175 } else { 176 if (double_speed) 177 asic = FW_MONA_301_1_ASIC96; 178 else 179 asic = FW_MONA_301_1_ASIC48; 180 } 181 182 if (asic != chip->asic_code) { 183 /* Load the desired ASIC */ 184 err = load_asic_generic(chip, DSP_FNC_LOAD_MONA_PCI_CARD_ASIC, 185 asic); 186 if (err < 0) 187 return err; 188 chip->asic_code = asic; 189 } 190 191 return 0; 192 } 193 194 195 196 static int set_sample_rate(struct echoaudio *chip, u32 rate) 197 { 198 u32 control_reg, clock; 199 short asic; 200 char force_write; 201 202 /* Only set the clock for internal mode. */ 203 if (chip->input_clock != ECHO_CLOCK_INTERNAL) { 204 dev_dbg(chip->card->dev, 205 "Cannot set sample rate - clock not set to CLK_CLOCKININTERNAL\n"); 206 /* Save the rate anyhow */ 207 chip->comm_page->sample_rate = cpu_to_le32(rate); 208 chip->sample_rate = rate; 209 return 0; 210 } 211 212 /* Now, check to see if the required ASIC is loaded */ 213 if (rate >= 88200) { 214 if (chip->digital_mode == DIGITAL_MODE_ADAT) 215 return -EINVAL; 216 if (chip->device_id == DEVICE_ID_56361) 217 asic = FW_MONA_361_1_ASIC96; 218 else 219 asic = FW_MONA_301_1_ASIC96; 220 } else { 221 if (chip->device_id == DEVICE_ID_56361) 222 asic = FW_MONA_361_1_ASIC48; 223 else 224 asic = FW_MONA_301_1_ASIC48; 225 } 226 227 force_write = 0; 228 if (asic != chip->asic_code) { 229 int err; 230 /* Load the desired ASIC (load_asic_generic() can sleep) */ 231 spin_unlock_irq(&chip->lock); 232 err = load_asic_generic(chip, DSP_FNC_LOAD_MONA_PCI_CARD_ASIC, 233 asic); 234 spin_lock_irq(&chip->lock); 235 236 if (err < 0) 237 return err; 238 chip->asic_code = asic; 239 force_write = 1; 240 } 241 242 /* Compute the new control register value */ 243 clock = 0; 244 control_reg = le32_to_cpu(chip->comm_page->control_register); 245 control_reg &= GML_CLOCK_CLEAR_MASK; 246 control_reg &= GML_SPDIF_RATE_CLEAR_MASK; 247 248 switch (rate) { 249 case 96000: 250 clock = GML_96KHZ; 251 break; 252 case 88200: 253 clock = GML_88KHZ; 254 break; 255 case 48000: 256 clock = GML_48KHZ | GML_SPDIF_SAMPLE_RATE1; 257 break; 258 case 44100: 259 clock = GML_44KHZ; 260 /* Professional mode */ 261 if (control_reg & GML_SPDIF_PRO_MODE) 262 clock |= GML_SPDIF_SAMPLE_RATE0; 263 break; 264 case 32000: 265 clock = GML_32KHZ | GML_SPDIF_SAMPLE_RATE0 | 266 GML_SPDIF_SAMPLE_RATE1; 267 break; 268 case 22050: 269 clock = GML_22KHZ; 270 break; 271 case 16000: 272 clock = GML_16KHZ; 273 break; 274 case 11025: 275 clock = GML_11KHZ; 276 break; 277 case 8000: 278 clock = GML_8KHZ; 279 break; 280 default: 281 dev_err(chip->card->dev, 282 "set_sample_rate: %d invalid!\n", rate); 283 return -EINVAL; 284 } 285 286 control_reg |= clock; 287 288 chip->comm_page->sample_rate = cpu_to_le32(rate); /* ignored by the DSP */ 289 chip->sample_rate = rate; 290 dev_dbg(chip->card->dev, 291 "set_sample_rate: %d clock %d\n", rate, clock); 292 293 return write_control_reg(chip, control_reg, force_write); 294 } 295 296 297 298 static int set_input_clock(struct echoaudio *chip, u16 clock) 299 { 300 u32 control_reg, clocks_from_dsp; 301 int err; 302 303 304 /* Prevent two simultaneous calls to switch_asic() */ 305 if (atomic_read(&chip->opencount)) 306 return -EAGAIN; 307 308 /* Mask off the clock select bits */ 309 control_reg = le32_to_cpu(chip->comm_page->control_register) & 310 GML_CLOCK_CLEAR_MASK; 311 clocks_from_dsp = le32_to_cpu(chip->comm_page->status_clocks); 312 313 switch (clock) { 314 case ECHO_CLOCK_INTERNAL: 315 chip->input_clock = ECHO_CLOCK_INTERNAL; 316 return set_sample_rate(chip, chip->sample_rate); 317 case ECHO_CLOCK_SPDIF: 318 if (chip->digital_mode == DIGITAL_MODE_ADAT) 319 return -EAGAIN; 320 spin_unlock_irq(&chip->lock); 321 err = switch_asic(chip, clocks_from_dsp & 322 GML_CLOCK_DETECT_BIT_SPDIF96); 323 spin_lock_irq(&chip->lock); 324 if (err < 0) 325 return err; 326 control_reg |= GML_SPDIF_CLOCK; 327 if (clocks_from_dsp & GML_CLOCK_DETECT_BIT_SPDIF96) 328 control_reg |= GML_DOUBLE_SPEED_MODE; 329 else 330 control_reg &= ~GML_DOUBLE_SPEED_MODE; 331 break; 332 case ECHO_CLOCK_WORD: 333 spin_unlock_irq(&chip->lock); 334 err = switch_asic(chip, clocks_from_dsp & 335 GML_CLOCK_DETECT_BIT_WORD96); 336 spin_lock_irq(&chip->lock); 337 if (err < 0) 338 return err; 339 control_reg |= GML_WORD_CLOCK; 340 if (clocks_from_dsp & GML_CLOCK_DETECT_BIT_WORD96) 341 control_reg |= GML_DOUBLE_SPEED_MODE; 342 else 343 control_reg &= ~GML_DOUBLE_SPEED_MODE; 344 break; 345 case ECHO_CLOCK_ADAT: 346 dev_dbg(chip->card->dev, "Set Mona clock to ADAT\n"); 347 if (chip->digital_mode != DIGITAL_MODE_ADAT) 348 return -EAGAIN; 349 control_reg |= GML_ADAT_CLOCK; 350 control_reg &= ~GML_DOUBLE_SPEED_MODE; 351 break; 352 default: 353 dev_err(chip->card->dev, 354 "Input clock 0x%x not supported for Mona\n", clock); 355 return -EINVAL; 356 } 357 358 chip->input_clock = clock; 359 return write_control_reg(chip, control_reg, true); 360 } 361 362 363 364 static int dsp_set_digital_mode(struct echoaudio *chip, u8 mode) 365 { 366 u32 control_reg; 367 int err, incompatible_clock; 368 369 /* Set clock to "internal" if it's not compatible with the new mode */ 370 incompatible_clock = false; 371 switch (mode) { 372 case DIGITAL_MODE_SPDIF_OPTICAL: 373 case DIGITAL_MODE_SPDIF_RCA: 374 if (chip->input_clock == ECHO_CLOCK_ADAT) 375 incompatible_clock = true; 376 break; 377 case DIGITAL_MODE_ADAT: 378 if (chip->input_clock == ECHO_CLOCK_SPDIF) 379 incompatible_clock = true; 380 break; 381 default: 382 dev_err(chip->card->dev, 383 "Digital mode not supported: %d\n", mode); 384 return -EINVAL; 385 } 386 387 spin_lock_irq(&chip->lock); 388 389 if (incompatible_clock) { /* Switch to 48KHz, internal */ 390 chip->sample_rate = 48000; 391 set_input_clock(chip, ECHO_CLOCK_INTERNAL); 392 } 393 394 /* Clear the current digital mode */ 395 control_reg = le32_to_cpu(chip->comm_page->control_register); 396 control_reg &= GML_DIGITAL_MODE_CLEAR_MASK; 397 398 /* Tweak the control reg */ 399 switch (mode) { 400 case DIGITAL_MODE_SPDIF_OPTICAL: 401 control_reg |= GML_SPDIF_OPTICAL_MODE; 402 break; 403 case DIGITAL_MODE_SPDIF_RCA: 404 /* GML_SPDIF_OPTICAL_MODE bit cleared */ 405 break; 406 case DIGITAL_MODE_ADAT: 407 /* If the current ASIC is the 96KHz ASIC, switch the ASIC 408 and set to 48 KHz */ 409 if (chip->asic_code == FW_MONA_361_1_ASIC96 || 410 chip->asic_code == FW_MONA_301_1_ASIC96) { 411 set_sample_rate(chip, 48000); 412 } 413 control_reg |= GML_ADAT_MODE; 414 control_reg &= ~GML_DOUBLE_SPEED_MODE; 415 break; 416 } 417 418 err = write_control_reg(chip, control_reg, false); 419 spin_unlock_irq(&chip->lock); 420 if (err < 0) 421 return err; 422 chip->digital_mode = mode; 423 424 dev_dbg(chip->card->dev, "set_digital_mode to %d\n", mode); 425 return incompatible_clock; 426 } 427