release/src-rt-6.x.4708/linux/linux-2.6.36/sound/pci/echoaudio/gina24_dsp.c

   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         DE_INIT(("init_hw() - Gina24\n"));
  45         if (snd_BUG_ON((subdevice_id & 0xfff0) != GINA24))
  46                 return -ENODEV;
  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->input_clock_types =
  57                 ECHO_CLOCK_BIT_INTERNAL | ECHO_CLOCK_BIT_SPDIF |
  58                 ECHO_CLOCK_BIT_ESYNC | ECHO_CLOCK_BIT_ESYNC96 |
  59                 ECHO_CLOCK_BIT_ADAT;
  60
  61         /* Gina24 comes in both '301 and '361 flavors */
  62         if (chip->device_id == DEVICE_ID_56361) {
  63                 chip->dsp_code_to_load = FW_GINA24_361_DSP;
  64                 chip->digital_modes =
  65                         ECHOCAPS_HAS_DIGITAL_MODE_SPDIF_RCA |
  66                         ECHOCAPS_HAS_DIGITAL_MODE_SPDIF_OPTICAL |
  67                         ECHOCAPS_HAS_DIGITAL_MODE_ADAT;
  68         } else {
  69                 chip->dsp_code_to_load = FW_GINA24_301_DSP;
  70                 chip->digital_modes =
  71                         ECHOCAPS_HAS_DIGITAL_MODE_SPDIF_RCA |
  72                         ECHOCAPS_HAS_DIGITAL_MODE_SPDIF_OPTICAL |
  73                         ECHOCAPS_HAS_DIGITAL_MODE_ADAT |
  74                         ECHOCAPS_HAS_DIGITAL_MODE_SPDIF_CDROM;
  75         }
  76
  77         if ((err = load_firmware(chip)) < 0)
  78                 return err;
  79         chip->bad_board = FALSE;
  80
  81         DE_INIT(("init_hw done\n"));
  82         return err;
  83 }
  84
  85
  86
  87 static int set_mixer_defaults(struct echoaudio *chip)
  88 {
  89         chip->digital_mode = DIGITAL_MODE_SPDIF_RCA;
  90         chip->professional_spdif = FALSE;
  91         chip->digital_in_automute = TRUE;
  92         return init_line_levels(chip);
  93 }
  94
  95
  96
  97 static u32 detect_input_clocks(const struct echoaudio *chip)
  98 {
  99         u32 clocks_from_dsp, clock_bits;
 100
 101         /* Map the DSP clock detect bits to the generic driver clock
 102            detect bits */
 103         clocks_from_dsp = le32_to_cpu(chip->comm_page->status_clocks);
 104
 105         clock_bits = ECHO_CLOCK_BIT_INTERNAL;
 106
 107         if (clocks_from_dsp & GML_CLOCK_DETECT_BIT_SPDIF)
 108                 clock_bits |= ECHO_CLOCK_BIT_SPDIF;
 109
 110         if (clocks_from_dsp & GML_CLOCK_DETECT_BIT_ADAT)
 111                 clock_bits |= ECHO_CLOCK_BIT_ADAT;
 112
 113         if (clocks_from_dsp & GML_CLOCK_DETECT_BIT_ESYNC)
 114                 clock_bits |= ECHO_CLOCK_BIT_ESYNC | ECHO_CLOCK_BIT_ESYNC96;
 115
 116         return clock_bits;
 117 }
 118
 119
 120
 121 /* Gina24 has an ASIC on the PCI card which must be loaded for anything
 122 interesting to happen. */
 123 static int load_asic(struct echoaudio *chip)
 124 {
 125         u32 control_reg;
 126         int err;
 127         short asic;
 128
 129         if (chip->asic_loaded)
 130                 return 1;
 131
 132         /* Give the DSP a few milliseconds to settle down */
 133         mdelay(10);
 134
 135         /* Pick the correct ASIC for '301 or '361 Gina24 */
 136         if (chip->device_id == DEVICE_ID_56361)
 137                 asic = FW_GINA24_361_ASIC;
 138         else
 139                 asic = FW_GINA24_301_ASIC;
 140
 141         err = load_asic_generic(chip, DSP_FNC_LOAD_GINA24_ASIC, asic);
 142         if (err < 0)
 143                 return err;
 144
 145         chip->asic_code = asic;
 146
 147         /* Now give the new ASIC a little time to set up */
 148         mdelay(10);
 149         /* See if it worked */
 150         err = check_asic_status(chip);
 151
 152         /* Set up the control register if the load succeeded -
 153            48 kHz, internal clock, S/PDIF RCA mode */
 154         if (!err) {
 155                 control_reg = GML_CONVERTER_ENABLE | GML_48KHZ;
 156                 err = write_control_reg(chip, control_reg, TRUE);
 157         }
 158         DE_INIT(("load_asic() done\n"));
 159         return err;
 160 }
 161
 162
 163
 164 static int set_sample_rate(struct echoaudio *chip, u32 rate)
 165 {
 166         u32 control_reg, clock;
 167
 168         if (snd_BUG_ON(rate >= 50000 &&
 169                        chip->digital_mode == DIGITAL_MODE_ADAT))
 170                 return -EINVAL;
 171
 172         /* Only set the clock for internal mode. */
 173         if (chip->input_clock != ECHO_CLOCK_INTERNAL) {
 174                 DE_ACT(("set_sample_rate: Cannot set sample rate - "
 175                         "clock not set to CLK_CLOCKININTERNAL\n"));
 176                 /* Save the rate anyhow */
 177                 chip->comm_page->sample_rate = cpu_to_le32(rate);
 178                 chip->sample_rate = rate;
 179                 return 0;
 180         }
 181
 182         clock = 0;
 183
 184         control_reg = le32_to_cpu(chip->comm_page->control_register);
 185         control_reg &= GML_CLOCK_CLEAR_MASK & GML_SPDIF_RATE_CLEAR_MASK;
 186
 187         switch (rate) {
 188         case 96000:
 189                 clock = GML_96KHZ;
 190                 break;
 191         case 88200:
 192                 clock = GML_88KHZ;
 193                 break;
 194         case 48000:
 195                 clock = GML_48KHZ | GML_SPDIF_SAMPLE_RATE1;
 196                 break;
 197         case 44100:
 198                 clock = GML_44KHZ;
 199                 /* Professional mode ? */
 200                 if (control_reg & GML_SPDIF_PRO_MODE)
 201                         clock |= GML_SPDIF_SAMPLE_RATE0;
 202                 break;
 203         case 32000:
 204                 clock = GML_32KHZ | GML_SPDIF_SAMPLE_RATE0 |
 205                         GML_SPDIF_SAMPLE_RATE1;
 206                 break;
 207         case 22050:
 208                 clock = GML_22KHZ;
 209                 break;
 210         case 16000:
 211                 clock = GML_16KHZ;
 212                 break;
 213         case 11025:
 214                 clock = GML_11KHZ;
 215                 break;
 216         case 8000:
 217                 clock = GML_8KHZ;
 218                 break;
 219         default:
 220                 DE_ACT(("set_sample_rate: %d invalid!\n", rate));
 221                 return -EINVAL;
 222         }
 223
 224         control_reg |= clock;
 225
 226         chip->comm_page->sample_rate = cpu_to_le32(rate);       /* ignored by the DSP */
 227         chip->sample_rate = rate;
 228         DE_ACT(("set_sample_rate: %d clock %d\n", rate, clock));
 229
 230         return write_control_reg(chip, control_reg, FALSE);
 231 }
 232
 233
 234
 235 static int set_input_clock(struct echoaudio *chip, u16 clock)
 236 {
 237         u32 control_reg, clocks_from_dsp;
 238
 239         DE_ACT(("set_input_clock:\n"));
 240
 241         /* Mask off the clock select bits */
 242         control_reg = le32_to_cpu(chip->comm_page->control_register) &
 243                 GML_CLOCK_CLEAR_MASK;
 244         clocks_from_dsp = le32_to_cpu(chip->comm_page->status_clocks);
 245
 246         switch (clock) {
 247         case ECHO_CLOCK_INTERNAL:
 248                 DE_ACT(("Set Gina24 clock to INTERNAL\n"));
 249                 chip->input_clock = ECHO_CLOCK_INTERNAL;
 250                 return set_sample_rate(chip, chip->sample_rate);
 251         case ECHO_CLOCK_SPDIF:
 252                 if (chip->digital_mode == DIGITAL_MODE_ADAT)
 253                         return -EAGAIN;
 254                 DE_ACT(("Set Gina24 clock to SPDIF\n"));
 255                 control_reg |= GML_SPDIF_CLOCK;
 256                 if (clocks_from_dsp & GML_CLOCK_DETECT_BIT_SPDIF96)
 257                         control_reg |= GML_DOUBLE_SPEED_MODE;
 258                 else
 259                         control_reg &= ~GML_DOUBLE_SPEED_MODE;
 260                 break;
 261         case ECHO_CLOCK_ADAT:
 262                 if (chip->digital_mode != DIGITAL_MODE_ADAT)
 263                         return -EAGAIN;
 264                 DE_ACT(("Set Gina24 clock to ADAT\n"));
 265                 control_reg |= GML_ADAT_CLOCK;
 266                 control_reg &= ~GML_DOUBLE_SPEED_MODE;
 267                 break;
 268         case ECHO_CLOCK_ESYNC:
 269                 DE_ACT(("Set Gina24 clock to ESYNC\n"));
 270                 control_reg |= GML_ESYNC_CLOCK;
 271                 control_reg &= ~GML_DOUBLE_SPEED_MODE;
 272                 break;
 273         case ECHO_CLOCK_ESYNC96:
 274                 DE_ACT(("Set Gina24 clock to ESYNC96\n"));
 275                 control_reg |= GML_ESYNC_CLOCK | GML_DOUBLE_SPEED_MODE;
 276                 break;
 277         default:
 278                 DE_ACT(("Input clock 0x%x not supported for Gina24\n", clock));
 279                 return -EINVAL;
 280         }
 281
 282         chip->input_clock = clock;
 283         return write_control_reg(chip, control_reg, TRUE);
 284 }
 285
 286
 287
 288 static int dsp_set_digital_mode(struct echoaudio *chip, u8 mode)
 289 {
 290         u32 control_reg;
 291         int err, incompatible_clock;
 292
 293         /* Set clock to "internal" if it's not compatible with the new mode */
 294         incompatible_clock = FALSE;
 295         switch (mode) {
 296         case DIGITAL_MODE_SPDIF_OPTICAL:
 297         case DIGITAL_MODE_SPDIF_CDROM:
 298         case DIGITAL_MODE_SPDIF_RCA:
 299                 if (chip->input_clock == ECHO_CLOCK_ADAT)
 300                         incompatible_clock = TRUE;
 301                 break;
 302         case DIGITAL_MODE_ADAT:
 303                 if (chip->input_clock == ECHO_CLOCK_SPDIF)
 304                         incompatible_clock = TRUE;
 305                 break;
 306         default:
 307                 DE_ACT(("Digital mode not supported: %d\n", mode));
 308                 return -EINVAL;
 309         }
 310
 311         spin_lock_irq(&chip->lock);
 312
 313         if (incompatible_clock) {       /* Switch to 48KHz, internal */
 314                 chip->sample_rate = 48000;
 315                 set_input_clock(chip, ECHO_CLOCK_INTERNAL);
 316         }
 317
 318         /* Clear the current digital mode */
 319         control_reg = le32_to_cpu(chip->comm_page->control_register);
 320         control_reg &= GML_DIGITAL_MODE_CLEAR_MASK;
 321
 322         /* Tweak the control reg */
 323         switch (mode) {
 324         case DIGITAL_MODE_SPDIF_OPTICAL:
 325                 control_reg |= GML_SPDIF_OPTICAL_MODE;
 326                 break;
 327         case DIGITAL_MODE_SPDIF_CDROM:
 328                 /* '361 Gina24 cards do not have the S/PDIF CD-ROM mode */
 329                 if (chip->device_id == DEVICE_ID_56301)
 330                         control_reg |= GML_SPDIF_CDROM_MODE;
 331                 break;
 332         case DIGITAL_MODE_SPDIF_RCA:
 333                 /* GML_SPDIF_OPTICAL_MODE bit cleared */
 334                 break;
 335         case DIGITAL_MODE_ADAT:
 336                 control_reg |= GML_ADAT_MODE;
 337                 control_reg &= ~GML_DOUBLE_SPEED_MODE;
 338                 break;
 339         }
 340
 341         err = write_control_reg(chip, control_reg, TRUE);
 342         spin_unlock_irq(&chip->lock);
 343         if (err < 0)
 344                 return err;
 345         chip->digital_mode = mode;
 346
 347         DE_ACT(("set_digital_mode to %d\n", chip->digital_mode));
 348         return incompatible_clock;
 349 }