Pileus Git - ~andy/linux/blob - drivers/media/dvb/dvb-usb/m920x.c

   1 /* DVB USB compliant linux driver for MSI Mega Sky 580 DVB-T USB2.0 receiver
   2  *
   3  * Copyright (C) 2006 Aapo Tahkola (aet@rasterburn.org)
   4  *
   5  *      This program is free software; you can redistribute it and/or modify it
   6  *      under the terms of the GNU General Public License as published by the Free
   7  *      Software Foundation, version 2.
   8  *
   9  * see Documentation/dvb/README.dvb-usb for more information
  10  */
  11
  12 #include "m920x.h"
  13
  14 #include "mt352.h"
  15 #include "mt352_priv.h"
  16 #include "qt1010.h"
  17
  18 /* debug */
  19 static int dvb_usb_m920x_debug;
  20 module_param_named(debug,dvb_usb_m920x_debug, int, 0644);
  21 MODULE_PARM_DESC(debug, "set debugging level (1=rc (or-able))." DVB_USB_DEBUG_STATUS);
  22
  23 static struct dvb_usb_rc_key megasky_rc_keys [] = {
  24         { 0x0, 0x12, KEY_POWER },
  25         { 0x0, 0x1e, KEY_CYCLEWINDOWS }, /* min/max */
  26         { 0x0, 0x02, KEY_CHANNELUP },
  27         { 0x0, 0x05, KEY_CHANNELDOWN },
  28         { 0x0, 0x03, KEY_VOLUMEUP },
  29         { 0x0, 0x06, KEY_VOLUMEDOWN },
  30         { 0x0, 0x04, KEY_MUTE },
  31         { 0x0, 0x07, KEY_OK }, /* TS */
  32         { 0x0, 0x08, KEY_STOP },
  33         { 0x0, 0x09, KEY_MENU }, /* swap */
  34         { 0x0, 0x0a, KEY_REWIND },
  35         { 0x0, 0x1b, KEY_PAUSE },
  36         { 0x0, 0x1f, KEY_FASTFORWARD },
  37         { 0x0, 0x0c, KEY_RECORD },
  38         { 0x0, 0x0d, KEY_CAMERA }, /* screenshot */
  39         { 0x0, 0x0e, KEY_COFFEE }, /* "MTS" */
  40 };
  41
  42 static inline int m9206_read(struct usb_device *udev, u8 request, u16 value,\
  43                              u16 index, void *data, int size)
  44 {
  45         int ret;
  46
  47         ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
  48                               request, USB_TYPE_VENDOR | USB_DIR_IN,
  49                               value, index, data, size, 2000);
  50         if (ret < 0)
  51                 return ret;
  52
  53         if (ret != size)
  54                 return -EIO;
  55
  56         return 0;
  57 }
  58
  59 static inline int m9206_write(struct usb_device *udev, u8 request,
  60                               u16 value, u16 index)
  61 {
  62         int ret;
  63
  64         ret = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
  65                               request, USB_TYPE_VENDOR | USB_DIR_OUT,
  66                               value, index, NULL, 0, 2000);
  67         return ret;
  68 }
  69
  70 static int m9206_init(struct dvb_usb_device *d)
  71 {
  72         int ret = 0;
  73
  74         /* Remote controller init. */
  75         if (d->props.rc_query) {
  76                 if ((ret = m9206_write(d->udev, M9206_CORE, 0xa8, M9206_RC_INIT2)) != 0)
  77                         return ret;
  78
  79                 if ((ret = m9206_write(d->udev, M9206_CORE, 0x51, M9206_RC_INIT1)) != 0)
  80                         return ret;
  81         }
  82
  83         return ret;
  84 }
  85
  86 static int m9206_rc_query(struct dvb_usb_device *d, u32 *event, int *state)
  87 {
  88         struct m9206_state *m = d->priv;
  89         int i, ret = 0;
  90         u8 rc_state[2];
  91
  92         if ((ret = m9206_read(d->udev, M9206_CORE, 0x0, M9206_RC_STATE, rc_state, 1)) != 0)
  93                 goto unlock;
  94
  95         if ((ret = m9206_read(d->udev, M9206_CORE, 0x0, M9206_RC_KEY, rc_state + 1, 1)) != 0)
  96                 goto unlock;
  97
  98         for (i = 0; i < d->props.rc_key_map_size; i++)
  99                 if (d->props.rc_key_map[i].data == rc_state[1]) {
 100                         *event = d->props.rc_key_map[i].event;
 101
 102                         switch(rc_state[0]) {
 103                         case 0x80:
 104                                 *state = REMOTE_NO_KEY_PRESSED;
 105                                 goto unlock;
 106
 107                         case 0x93:
 108                         case 0x92:
 109                                 m->rep_count = 0;
 110                                 *state = REMOTE_KEY_PRESSED;
 111                                 goto unlock;
 112
 113                         case 0x91:
 114                                 /* For comfort. */
 115                                 if (++m->rep_count > 2)
 116                                         *state = REMOTE_KEY_REPEAT;
 117                                 goto unlock;
 118
 119                         default:
 120                                 deb_rc("Unexpected rc response %x\n", rc_state[0]);
 121                                 *state = REMOTE_NO_KEY_PRESSED;
 122                                 goto unlock;
 123                         }
 124                 }
 125
 126         if (rc_state[1] != 0)
 127                 deb_rc("Unknown rc key %x\n", rc_state[1]);
 128
 129         *state = REMOTE_NO_KEY_PRESSED;
 130
 131         unlock:
 132
 133         return ret;
 134 }
 135
 136 /* I2C */
 137 static int m9206_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msg[],
 138                           int num)
 139 {
 140         struct dvb_usb_device *d = i2c_get_adapdata(adap);
 141         int i, j;
 142         int ret = 0;
 143
 144         if (mutex_lock_interruptible(&d->i2c_mutex) < 0)
 145                 return -EAGAIN;
 146
 147         for (i = 0; i < num; i++) {
 148                 if (msg[i].flags & I2C_M_RD) {
 149
 150                         if ((ret = m9206_write(d->udev, M9206_I2C, (msg[i].addr << 1) | 0x01, 0x80)) != 0)
 151                                 goto unlock;
 152
 153                         for(j = 0; j < msg[i].len; j++) {
 154                                 if (j + 1 == msg[i].len && i + 1== num) {
 155                                         if ((ret = m9206_read(d->udev, M9206_I2C, 0x0, 0x60, &msg[i].buf[j], msg[i].len)) != 0)
 156                                                 goto unlock;
 157                                 } else {
 158                                         if ((ret = m9206_read(d->udev, M9206_I2C, 0x0, 0x21, &msg[i].buf[j], msg[i].len)) != 0)
 159                                                 goto unlock;
 160                                 }
 161                         }
 162
 163                 } else {
 164                         if ((ret = m9206_write(d->udev, M9206_I2C, msg[i].addr << 1, 0x80)) != 0)
 165                                 goto unlock;
 166
 167                         for(j = 0; j < msg[i].len; j++) {
 168                                 if (j + 1 == msg[i].len && i + 1== num) {
 169                                         if ((ret = m9206_write(d->udev, M9206_I2C, msg[i].buf[j], 0x40)) != 0)
 170                                                 goto unlock;
 171
 172                                 } else {
 173                                         if ((ret = m9206_write(d->udev, M9206_I2C, msg[i].buf[j], 0x0)) != 0)
 174                                                 goto unlock;
 175                                 }
 176                         }
 177                 }
 178         }
 179         ret = num;
 180         unlock:
 181         mutex_unlock(&d->i2c_mutex);
 182
 183         return ret;
 184 }
 185
 186 static u32 m9206_i2c_func(struct i2c_adapter *adapter)
 187 {
 188         return I2C_FUNC_I2C;
 189 }
 190
 191 static struct i2c_algorithm m9206_i2c_algo = {
 192         .master_xfer   = m9206_i2c_xfer,
 193         .functionality = m9206_i2c_func,
 194 };
 195
 196
 197 static int m9206_set_filter(struct dvb_usb_adapter *adap, int type, int idx,
 198                             int pid)
 199 {
 200         int ret = 0;
 201
 202         if (pid >= 0x8000)
 203                 return -EINVAL;
 204
 205         pid |= 0x8000;
 206
 207         if ((ret = m9206_write(adap->dev->udev, M9206_FILTER, pid, (type << 8) | (idx * 4) )) != 0)
 208                 return ret;
 209
 210         if ((ret = m9206_write(adap->dev->udev, M9206_FILTER, 0, (type << 8) | (idx * 4) )) != 0)
 211                 return ret;
 212
 213         return ret;
 214 }
 215
 216 static int m9206_update_filters(struct dvb_usb_adapter *adap)
 217 {
 218         struct m9206_state *m = adap->dev->priv;
 219         int enabled = m->filtering_enabled;
 220         int i, ret = 0, filter = 0;
 221
 222         for (i = 0; i < M9206_MAX_FILTERS; i++)
 223                 if (m->filters[i] == 8192)
 224                         enabled = 0;
 225
 226         /* Disable all filters */
 227         if ((ret = m9206_set_filter(adap, 0x81, 1, enabled)) != 0)
 228                 return ret;
 229
 230         for (i = 0; i < M9206_MAX_FILTERS; i++)
 231                 if ((ret = m9206_set_filter(adap, 0x81, i + 2, 0)) != 0)
 232                         return ret;
 233
 234         if ((ret = m9206_set_filter(adap, 0x82, 0, 0x0)) != 0)
 235                 return ret;
 236
 237         /* Set */
 238         if (enabled) {
 239                 for (i = 0; i < M9206_MAX_FILTERS; i++) {
 240                         if (m->filters[i] == 0)
 241                                 continue;
 242
 243                         if ((ret = m9206_set_filter(adap, 0x81, filter + 2, m->filters[i])) != 0)
 244                                 return ret;
 245
 246                         filter++;
 247                 }
 248         }
 249
 250         if ((ret = m9206_set_filter(adap, 0x82, 0, 0x02f5)) != 0)
 251                 return ret;
 252
 253         return ret;
 254 }
 255
 256 static int m9206_pid_filter_ctrl(struct dvb_usb_adapter *adap, int onoff)
 257 {
 258         struct m9206_state *m = adap->dev->priv;
 259
 260         m->filtering_enabled = onoff ? 1 : 0;
 261
 262         return m9206_update_filters(adap);
 263 }
 264
 265 static int m9206_pid_filter(struct dvb_usb_adapter *adap, int index, u16 pid,
 266                             int onoff)
 267 {
 268         struct m9206_state *m = adap->dev->priv;
 269
 270         m->filters[index] = onoff ? pid : 0;
 271
 272         return m9206_update_filters(adap);
 273 }
 274
 275 static int m9206_firmware_download(struct usb_device *udev,
 276                                    const struct firmware *fw)
 277 {
 278         u16 value, index, size;
 279         u8 read[4], *buff;
 280         int i, pass, ret = 0;
 281
 282         buff = kmalloc(65536, GFP_KERNEL);
 283
 284         if ((ret = m9206_read(udev, M9206_FILTER, 0x0, 0x8000, read, 4)) != 0)
 285                 goto done;
 286         deb_rc("%x %x %x %x\n", read[0], read[1], read[2], read[3]);
 287
 288         if ((ret = m9206_read(udev, M9206_FW, 0x0, 0x0, read, 1)) != 0)
 289                 goto done;
 290         deb_rc("%x\n", read[0]);
 291
 292         for (pass = 0; pass < 2; pass++) {
 293                 for (i = 0; i + (sizeof(u16) * 3) < fw->size;) {
 294                         value = le16_to_cpu(*(u16 *)(fw->data + i));
 295                         i += sizeof(u16);
 296
 297                         index = le16_to_cpu(*(u16 *)(fw->data + i));
 298                         i += sizeof(u16);
 299
 300                         size = le16_to_cpu(*(u16 *)(fw->data + i));
 301                         i += sizeof(u16);
 302
 303                         if (pass == 1) {
 304                                 /* Will stall if using fw->data ... */
 305                                 memcpy(buff, fw->data + i, size);
 306
 307                                 ret = usb_control_msg(udev, usb_sndctrlpipe(udev,0),
 308                                             M9206_FW,
 309                                             USB_TYPE_VENDOR | USB_DIR_OUT,
 310                                             value, index, buff, size, 20);
 311                                 if (ret != size) {
 312                                         deb_rc("error while uploading fw!\n");
 313                                         ret = -EIO;
 314                                         goto done;
 315                                 }
 316                                 msleep(3);
 317                         }
 318                         i += size;
 319                 }
 320                 if (i != fw->size) {
 321                         ret = -EINVAL;
 322                         goto done;
 323                 }
 324         }
 325
 326         msleep(36);
 327
 328         /* m9206 will disconnect itself from the bus after this. */
 329         (void) m9206_write(udev, M9206_CORE, 0x01, M9206_FW_GO);
 330         deb_rc("firmware uploaded!\n");
 331
 332         done:
 333         kfree(buff);
 334
 335         return ret;
 336 }
 337
 338 /* Callbacks for DVB USB */
 339 static int megasky_identify_state(struct usb_device *udev,
 340                                   struct dvb_usb_device_properties *props,
 341                                   struct dvb_usb_device_description **desc,
 342                                   int *cold)
 343 {
 344         struct usb_host_interface *alt;
 345
 346         alt = usb_altnum_to_altsetting(usb_ifnum_to_if(udev, 0), 1);
 347         *cold = (alt == NULL) ? 1 : 0;
 348
 349         return 0;
 350 }
 351
 352 static int megasky_mt352_demod_init(struct dvb_frontend *fe)
 353 {
 354         u8 config[] = { CONFIG, 0x3d };
 355         u8 clock[] = { CLOCK_CTL, 0x30 };
 356         u8 reset[] = { RESET, 0x80 };
 357         u8 adc_ctl[] = { ADC_CTL_1, 0x40 };
 358         u8 agc[] = { AGC_TARGET, 0x1c, 0x20 };
 359         u8 sec_agc[] = { 0x69, 0x00, 0xff, 0xff, 0x40, 0xff, 0x00, 0x40, 0x40 };
 360         u8 unk1[] = { 0x93, 0x1a };
 361         u8 unk2[] = { 0xb5, 0x7a };
 362
 363         mt352_write(fe, config, ARRAY_SIZE(config));
 364         mt352_write(fe, clock, ARRAY_SIZE(clock));
 365         mt352_write(fe, reset, ARRAY_SIZE(reset));
 366         mt352_write(fe, adc_ctl, ARRAY_SIZE(adc_ctl));
 367         mt352_write(fe, agc, ARRAY_SIZE(agc));
 368         mt352_write(fe, sec_agc, ARRAY_SIZE(sec_agc));
 369         mt352_write(fe, unk1, ARRAY_SIZE(unk1));
 370         mt352_write(fe, unk2, ARRAY_SIZE(unk2));
 371
 372         deb_rc("Demod init!\n");
 373
 374         return 0;
 375 }
 376
 377 static struct mt352_config megasky_mt352_config = {
 378         .demod_address = 0x0f,
 379         .no_tuner = 1,
 380         .demod_init = megasky_mt352_demod_init,
 381 };
 382
 383 static int megasky_mt352_frontend_attach(struct dvb_usb_adapter *adap)
 384 {
 385         deb_rc("megasky_frontend_attach!\n");
 386
 387         if ((adap->fe = dvb_attach(mt352_attach, &megasky_mt352_config, &adap->dev->i2c_adap)) == NULL)
 388                 return -EIO;
 389
 390         return 0;
 391 }
 392
 393 static struct qt1010_config megasky_qt1010_config = {
 394         .i2c_address = 0x62
 395 };
 396
 397 static int megasky_qt1010_tuner_attach(struct dvb_usb_adapter *adap)
 398 {
 399         if (dvb_attach(qt1010_attach, adap->fe, &adap->dev->i2c_adap,
 400                        &megasky_qt1010_config) == NULL)
 401                 return -ENODEV;
 402
 403         return 0;
 404 }
 405
 406 /* DVB USB Driver stuff */
 407 static struct dvb_usb_device_properties megasky_properties;
 408
 409 static int m920x_probe(struct usb_interface *intf,
 410                        const struct usb_device_id *id)
 411 {
 412         struct dvb_usb_device *d;
 413         struct usb_host_interface *alt;
 414         int ret;
 415
 416         deb_rc("Probed!\n");
 417
 418         if ((ret = dvb_usb_device_init(intf, &megasky_properties, THIS_MODULE, &d)) == 0)
 419                 goto found;
 420
 421         return ret;
 422
 423 found:
 424         alt = usb_altnum_to_altsetting(intf, 1);
 425         if (alt == NULL) {
 426                 deb_rc("No alt found!\n");
 427                 return -ENODEV;
 428         }
 429
 430         ret = usb_set_interface(d->udev, alt->desc.bInterfaceNumber,
 431                                 alt->desc.bAlternateSetting);
 432         if (ret < 0)
 433                 return ret;
 434
 435         if ((ret = m9206_init(d)) != 0)
 436                 return ret;
 437
 438         return ret;
 439 }
 440
 441 static struct usb_device_id m920x_table [] = {
 442                 { USB_DEVICE(USB_VID_MSI, USB_PID_MSI_MEGASKY580) },
 443                 { }             /* Terminating entry */
 444 };
 445 MODULE_DEVICE_TABLE (usb, m920x_table);
 446
 447 static struct dvb_usb_device_properties megasky_properties = {
 448         .caps = DVB_USB_IS_AN_I2C_ADAPTER,
 449
 450         .usb_ctrl = DEVICE_SPECIFIC,
 451         .firmware = "dvb-usb-megasky-02.fw",
 452         .download_firmware = m9206_firmware_download,
 453
 454         .rc_interval      = 100,
 455         .rc_key_map       = megasky_rc_keys,
 456         .rc_key_map_size  = ARRAY_SIZE(megasky_rc_keys),
 457         .rc_query         = m9206_rc_query,
 458
 459         .size_of_priv     = sizeof(struct m9206_state),
 460
 461         .identify_state   = megasky_identify_state,
 462         .num_adapters = 1,
 463         .adapter = {{
 464                 .caps = DVB_USB_ADAP_HAS_PID_FILTER |
 465                         DVB_USB_ADAP_PID_FILTER_CAN_BE_TURNED_OFF,
 466
 467                 .pid_filter_count = 8,
 468                 .pid_filter       = m9206_pid_filter,
 469                 .pid_filter_ctrl  = m9206_pid_filter_ctrl,
 470
 471                 .frontend_attach  = megasky_mt352_frontend_attach,
 472                 .tuner_attach     = megasky_qt1010_tuner_attach,
 473
 474                 .stream = {
 475                         .type = USB_BULK,
 476                         .count = 8,
 477                         .endpoint = 0x81,
 478                         .u = {
 479                                 .bulk = {
 480                                         .buffersize = 512,
 481                                 }
 482                         }
 483                 },
 484         }},
 485         .i2c_algo         = &m9206_i2c_algo,
 486
 487         .num_device_descs = 1,
 488         .devices = {
 489                 {   "MSI Mega Sky 580 DVB-T USB2.0",
 490                         { &m920x_table[0], NULL },
 491                         { NULL },
 492                 },
 493         }
 494 };
 495
 496 static struct usb_driver m920x_driver = {
 497         .name           = "dvb_usb_m920x",
 498         .probe          = m920x_probe,
 499         .disconnect     = dvb_usb_device_exit,
 500         .id_table       = m920x_table,
 501 };
 502
 503 /* module stuff */
 504 static int __init m920x_module_init(void)
 505 {
 506         int ret;
 507
 508         if ((ret = usb_register(&m920x_driver))) {
 509                 err("usb_register failed. Error number %d", ret);
 510                 return ret;
 511         }
 512
 513         return 0;
 514 }
 515
 516 static void __exit m920x_module_exit(void)
 517 {
 518         /* deregister this driver from the USB subsystem */
 519         usb_deregister(&m920x_driver);
 520 }
 521
 522 module_init (m920x_module_init);
 523 module_exit (m920x_module_exit);
 524
 525 MODULE_AUTHOR("Aapo Tahkola <aet@rasterburn.org>");
 526 MODULE_DESCRIPTION("Driver MSI Mega Sky 580 DVB-T USB2.0 / Uli m920x");
 527 MODULE_VERSION("0.1");
 528 MODULE_LICENSE("GPL");