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