err.no Git - linux-2.6/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                 printk(KERN_INFO "m920x_read = error: %d\n", ret);
  52                 return ret;
  53         }
  54
  55         if (ret != size) {
  56                 deb_rc("m920x_read = no data\n");
  57                 return -EIO;
  58         }
  59
  60         return 0;
  61 }
  62
  63 static inline int m9206_write(struct usb_device *udev, u8 request,
  64                               u16 value, u16 index)
  65 {
  66         int ret;
  67
  68         ret = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
  69                               request, USB_TYPE_VENDOR | USB_DIR_OUT,
  70                               value, index, NULL, 0, 2000);
  71
  72         return ret;
  73 }
  74
  75 static int m9206_init(struct dvb_usb_device *d)
  76 {
  77         int ret = 0;
  78
  79         /* Remote controller init. */
  80         if (d->props.rc_query) {
  81                 if ((ret = m9206_write(d->udev, M9206_CORE, 0xa8, M9206_RC_INIT2)) != 0)
  82                         return ret;
  83
  84                 if ((ret = m9206_write(d->udev, M9206_CORE, 0x51, M9206_RC_INIT1)) != 0)
  85                         return ret;
  86         }
  87
  88         return ret;
  89 }
  90
  91 static int m9206_rc_query(struct dvb_usb_device *d, u32 *event, int *state)
  92 {
  93         struct m9206_state *m = d->priv;
  94         int i, ret = 0;
  95         u8 rc_state[2];
  96
  97         if ((ret = m9206_read(d->udev, M9206_CORE, 0x0, M9206_RC_STATE, rc_state, 1)) != 0)
  98                 goto unlock;
  99
 100         if ((ret = m9206_read(d->udev, M9206_CORE, 0x0, M9206_RC_KEY, rc_state + 1, 1)) != 0)
 101                 goto unlock;
 102
 103         for (i = 0; i < d->props.rc_key_map_size; i++)
 104                 if (d->props.rc_key_map[i].data == rc_state[1]) {
 105                         *event = d->props.rc_key_map[i].event;
 106
 107                         switch(rc_state[0]) {
 108                         case 0x80:
 109                                 *state = REMOTE_NO_KEY_PRESSED;
 110                                 goto unlock;
 111
 112                         case 0x93:
 113                         case 0x92:
 114                                 m->rep_count = 0;
 115                                 *state = REMOTE_KEY_PRESSED;
 116                                 goto unlock;
 117
 118                         case 0x91:
 119                                 /* For comfort. */
 120                                 if (++m->rep_count > 2)
 121                                         *state = REMOTE_KEY_REPEAT;
 122                                 goto unlock;
 123
 124                         default:
 125                                 deb_rc("Unexpected rc response %x\n", rc_state[0]);
 126                                 *state = REMOTE_NO_KEY_PRESSED;
 127                                 goto unlock;
 128                         }
 129                 }
 130
 131         if (rc_state[1] != 0)
 132                 deb_rc("Unknown rc key %x\n", rc_state[1]);
 133
 134         *state = REMOTE_NO_KEY_PRESSED;
 135
 136         unlock:
 137
 138         return ret;
 139 }
 140
 141 /* I2C */
 142 static int m9206_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msg[],
 143                           int num)
 144 {
 145         struct dvb_usb_device *d = i2c_get_adapdata(adap);
 146         int i, j;
 147         int ret = 0;
 148
 149         if (!num)
 150                 return -EINVAL;
 151
 152         if (mutex_lock_interruptible(&d->i2c_mutex) < 0)
 153                 return -EAGAIN;
 154
 155         for (i = 0; i < num; i++) {
 156                 if (msg[i].flags & (I2C_M_NO_RD_ACK|I2C_M_IGNORE_NAK|I2C_M_TEN) ||
 157                     msg[i].len == 0) {
 158                         /* For a 0 byte message, I think sending the address to index 0x80|0x40
 159                          * would be the correct thing to do.  However, zero byte messages are
 160                          * only used for probing, and since we don't know how to get the slave's
 161                          * ack, we can't probe. */
 162                         ret = -ENOTSUPP;
 163                         goto unlock;
 164                 }
 165                 /* Send START & address/RW bit */
 166                 if (!(msg[i].flags & I2C_M_NOSTART)) {
 167                         if ((ret = m9206_write(d->udev, M9206_I2C, (msg[i].addr<<1)|(msg[i].flags&I2C_M_RD?0x01:0), 0x80)) != 0)
 168                                 goto unlock;
 169                         /* Should check for ack here, if we knew how. */
 170                 }
 171                 if (msg[i].flags & I2C_M_RD) {
 172                         for (j = 0; j < msg[i].len; j++) {
 173                                 /* Last byte of transaction? Send STOP, otherwise send ACK. */
 174                                 int stop = (i+1 == num && j+1 == msg[i].len)?0x40:0x01;
 175                                 if ((ret = m9206_read(d->udev, M9206_I2C, 0x0, 0x20|stop, &msg[i].buf[j], 1)) != 0)
 176                                         goto unlock;
 177                         }
 178                 } else {
 179                         for (j = 0; j < msg[i].len; j++) {
 180                                 /* Last byte of transaction? Then send STOP. */
 181                                 int stop = (i+1 == num && j+1 == msg[i].len)?0x40:0x00;
 182                                 if ((ret = m9206_write(d->udev, M9206_I2C, msg[i].buf[j], stop)) != 0)
 183                                         goto unlock;
 184                                 /* Should check for ack here too. */
 185                         }
 186                 }
 187         }
 188         ret = num;
 189
 190 unlock:
 191         mutex_unlock(&d->i2c_mutex);
 192
 193         return ret;
 194 }
 195
 196 static u32 m9206_i2c_func(struct i2c_adapter *adapter)
 197 {
 198         return I2C_FUNC_I2C;
 199 }
 200
 201 static struct i2c_algorithm m9206_i2c_algo = {
 202         .master_xfer   = m9206_i2c_xfer,
 203         .functionality = m9206_i2c_func,
 204 };
 205
 206
 207 static int m9206_set_filter(struct dvb_usb_adapter *adap, int type, int idx,
 208                             int pid)
 209 {
 210         int ret = 0;
 211
 212         if (pid >= 0x8000)
 213                 return -EINVAL;
 214
 215         pid |= 0x8000;
 216
 217         if ((ret = m9206_write(adap->dev->udev, M9206_FILTER, pid, (type << 8) | (idx * 4) )) != 0)
 218                 return ret;
 219
 220         if ((ret = m9206_write(adap->dev->udev, M9206_FILTER, 0, (type << 8) | (idx * 4) )) != 0)
 221                 return ret;
 222
 223         return ret;
 224 }
 225
 226 static int m9206_update_filters(struct dvb_usb_adapter *adap)
 227 {
 228         struct m9206_state *m = adap->dev->priv;
 229         int enabled = m->filtering_enabled;
 230         int i, ret = 0, filter = 0;
 231
 232         for (i = 0; i < M9206_MAX_FILTERS; i++)
 233                 if (m->filters[i] == 8192)
 234                         enabled = 0;
 235
 236         /* Disable all filters */
 237         if ((ret = m9206_set_filter(adap, 0x81, 1, enabled)) != 0)
 238                 return ret;
 239
 240         for (i = 0; i < M9206_MAX_FILTERS; i++)
 241                 if ((ret = m9206_set_filter(adap, 0x81, i + 2, 0)) != 0)
 242                         return ret;
 243
 244         if ((ret = m9206_set_filter(adap, 0x82, 0, 0x0)) != 0)
 245                 return ret;
 246
 247         /* Set */
 248         if (enabled) {
 249                 for (i = 0; i < M9206_MAX_FILTERS; i++) {
 250                         if (m->filters[i] == 0)
 251                                 continue;
 252
 253                         if ((ret = m9206_set_filter(adap, 0x81, filter + 2, m->filters[i])) != 0)
 254                                 return ret;
 255
 256                         filter++;
 257                 }
 258         }
 259
 260         if ((ret = m9206_set_filter(adap, 0x82, 0, 0x02f5)) != 0)
 261                 return ret;
 262
 263         return ret;
 264 }
 265
 266 static int m9206_pid_filter_ctrl(struct dvb_usb_adapter *adap, int onoff)
 267 {
 268         struct m9206_state *m = adap->dev->priv;
 269
 270         m->filtering_enabled = onoff ? 1 : 0;
 271
 272         return m9206_update_filters(adap);
 273 }
 274
 275 static int m9206_pid_filter(struct dvb_usb_adapter *adap, int index, u16 pid,
 276                             int onoff)
 277 {
 278         struct m9206_state *m = adap->dev->priv;
 279
 280         m->filters[index] = onoff ? pid : 0;
 281
 282         return m9206_update_filters(adap);
 283 }
 284
 285 static int m9206_firmware_download(struct usb_device *udev,
 286                                    const struct firmware *fw)
 287 {
 288         u16 value, index, size;
 289         u8 read[4], *buff;
 290         int i, pass, ret = 0;
 291
 292         buff = kmalloc(65536, GFP_KERNEL);
 293
 294         if ((ret = m9206_read(udev, M9206_FILTER, 0x0, 0x8000, read, 4)) != 0)
 295                 goto done;
 296         deb_rc("%x %x %x %x\n", read[0], read[1], read[2], read[3]);
 297
 298         if ((ret = m9206_read(udev, M9206_FW, 0x0, 0x0, read, 1)) != 0)
 299                 goto done;
 300         deb_rc("%x\n", read[0]);
 301
 302         for (pass = 0; pass < 2; pass++) {
 303                 for (i = 0; i + (sizeof(u16) * 3) < fw->size;) {
 304                         value = le16_to_cpu(*(u16 *)(fw->data + i));
 305                         i += sizeof(u16);
 306
 307                         index = le16_to_cpu(*(u16 *)(fw->data + i));
 308                         i += sizeof(u16);
 309
 310                         size = le16_to_cpu(*(u16 *)(fw->data + i));
 311                         i += sizeof(u16);
 312
 313                         if (pass == 1) {
 314                                 /* Will stall if using fw->data ... */
 315                                 memcpy(buff, fw->data + i, size);
 316
 317                                 ret = usb_control_msg(udev, usb_sndctrlpipe(udev,0),
 318                                             M9206_FW,
 319                                             USB_TYPE_VENDOR | USB_DIR_OUT,
 320                                             value, index, buff, size, 20);
 321                                 if (ret != size) {
 322                                         deb_rc("error while uploading fw!\n");
 323                                         ret = -EIO;
 324                                         goto done;
 325                                 }
 326                                 msleep(3);
 327                         }
 328                         i += size;
 329                 }
 330                 if (i != fw->size) {
 331                         deb_rc("bad firmware file!\n");
 332                         ret = -EINVAL;
 333                         goto done;
 334                 }
 335         }
 336
 337         msleep(36);
 338
 339         /* m9206 will disconnect itself from the bus after this. */
 340         (void) m9206_write(udev, M9206_CORE, 0x01, M9206_FW_GO);
 341         deb_rc("firmware uploaded!\n");
 342
 343         done:
 344         kfree(buff);
 345
 346         return ret;
 347 }
 348
 349 /* Callbacks for DVB USB */
 350 static int m920x_identify_state(struct usb_device *udev,
 351                                 struct dvb_usb_device_properties *props,
 352                                 struct dvb_usb_device_description **desc,
 353                                 int *cold)
 354 {
 355         struct usb_host_interface *alt;
 356
 357         alt = usb_altnum_to_altsetting(usb_ifnum_to_if(udev, 0), 1);
 358         *cold = (alt == NULL) ? 1 : 0;
 359
 360         return 0;
 361 }
 362
 363 static int megasky_mt352_demod_init(struct dvb_frontend *fe)
 364 {
 365         u8 config[] = { CONFIG, 0x3d };
 366         u8 clock[] = { CLOCK_CTL, 0x30 };
 367         u8 reset[] = { RESET, 0x80 };
 368         u8 adc_ctl[] = { ADC_CTL_1, 0x40 };
 369         u8 agc[] = { AGC_TARGET, 0x1c, 0x20 };
 370         u8 sec_agc[] = { 0x69, 0x00, 0xff, 0xff, 0x40, 0xff, 0x00, 0x40, 0x40 };
 371         u8 unk1[] = { 0x93, 0x1a };
 372         u8 unk2[] = { 0xb5, 0x7a };
 373
 374         mt352_write(fe, config, ARRAY_SIZE(config));
 375         mt352_write(fe, clock, ARRAY_SIZE(clock));
 376         mt352_write(fe, reset, ARRAY_SIZE(reset));
 377         mt352_write(fe, adc_ctl, ARRAY_SIZE(adc_ctl));
 378         mt352_write(fe, agc, ARRAY_SIZE(agc));
 379         mt352_write(fe, sec_agc, ARRAY_SIZE(sec_agc));
 380         mt352_write(fe, unk1, ARRAY_SIZE(unk1));
 381         mt352_write(fe, unk2, ARRAY_SIZE(unk2));
 382
 383         deb_rc("Demod init!\n");
 384
 385         return 0;
 386 }
 387
 388 static struct mt352_config megasky_mt352_config = {
 389         .demod_address = 0x0f,
 390         .no_tuner = 1,
 391         .demod_init = megasky_mt352_demod_init,
 392 };
 393
 394 static int megasky_mt352_frontend_attach(struct dvb_usb_adapter *adap)
 395 {
 396         deb_rc("megasky_frontend_attach!\n");
 397
 398         if ((adap->fe = dvb_attach(mt352_attach, &megasky_mt352_config, &adap->dev->i2c_adap)) == NULL)
 399                 return -EIO;
 400
 401         return 0;
 402 }
 403
 404 static struct qt1010_config megasky_qt1010_config = {
 405         .i2c_address = 0x62
 406 };
 407
 408 static int megasky_qt1010_tuner_attach(struct dvb_usb_adapter *adap)
 409 {
 410         if (dvb_attach(qt1010_attach, adap->fe, &adap->dev->i2c_adap,
 411                        &megasky_qt1010_config) == NULL)
 412                 return -ENODEV;
 413
 414         return 0;
 415 }
 416
 417 /* DVB USB Driver stuff */
 418 static struct dvb_usb_device_properties megasky_properties;
 419
 420 static int m920x_probe(struct usb_interface *intf,
 421                        const struct usb_device_id *id)
 422 {
 423         struct dvb_usb_device *d;
 424         struct usb_host_interface *alt;
 425         int ret;
 426
 427         deb_rc("Probed!\n");
 428
 429         if ((ret = dvb_usb_device_init(intf, &megasky_properties, THIS_MODULE, &d)) == 0)
 430                 goto found;
 431
 432         return ret;
 433
 434 found:
 435         alt = usb_altnum_to_altsetting(intf, 1);
 436         if (alt == NULL) {
 437                 deb_rc("No alt found!\n");
 438                 return -ENODEV;
 439         }
 440
 441         ret = usb_set_interface(d->udev, alt->desc.bInterfaceNumber,
 442                                 alt->desc.bAlternateSetting);
 443         if (ret < 0)
 444                 return ret;
 445
 446         if ((ret = m9206_init(d)) != 0)
 447                 return ret;
 448
 449         return ret;
 450 }
 451
 452 static struct usb_device_id m920x_table [] = {
 453                 { USB_DEVICE(USB_VID_MSI, USB_PID_MSI_MEGASKY580) },
 454                 { }             /* Terminating entry */
 455 };
 456 MODULE_DEVICE_TABLE (usb, m920x_table);
 457
 458 static struct dvb_usb_device_properties megasky_properties = {
 459         .caps = DVB_USB_IS_AN_I2C_ADAPTER,
 460
 461         .usb_ctrl = DEVICE_SPECIFIC,
 462         .firmware = "dvb-usb-megasky-02.fw",
 463         .download_firmware = m9206_firmware_download,
 464
 465         .rc_interval      = 100,
 466         .rc_key_map       = megasky_rc_keys,
 467         .rc_key_map_size  = ARRAY_SIZE(megasky_rc_keys),
 468         .rc_query         = m9206_rc_query,
 469
 470         .size_of_priv     = sizeof(struct m9206_state),
 471
 472         .identify_state   = m920x_identify_state,
 473         .num_adapters = 1,
 474         .adapter = {{
 475                 .caps = DVB_USB_ADAP_HAS_PID_FILTER |
 476                         DVB_USB_ADAP_PID_FILTER_CAN_BE_TURNED_OFF,
 477
 478                 .pid_filter_count = 8,
 479                 .pid_filter       = m9206_pid_filter,
 480                 .pid_filter_ctrl  = m9206_pid_filter_ctrl,
 481
 482                 .frontend_attach  = megasky_mt352_frontend_attach,
 483                 .tuner_attach     = megasky_qt1010_tuner_attach,
 484
 485                 .stream = {
 486                         .type = USB_BULK,
 487                         .count = 8,
 488                         .endpoint = 0x81,
 489                         .u = {
 490                                 .bulk = {
 491                                         .buffersize = 512,
 492                                 }
 493                         }
 494                 },
 495         }},
 496         .i2c_algo         = &m9206_i2c_algo,
 497
 498         .num_device_descs = 1,
 499         .devices = {
 500                 {   "MSI Mega Sky 580 DVB-T USB2.0",
 501                         { &m920x_table[0], NULL },
 502                         { NULL },
 503                 },
 504         }
 505 };
 506
 507 static struct usb_driver m920x_driver = {
 508         .name           = "dvb_usb_m920x",
 509         .probe          = m920x_probe,
 510         .disconnect     = dvb_usb_device_exit,
 511         .id_table       = m920x_table,
 512 };
 513
 514 /* module stuff */
 515 static int __init m920x_module_init(void)
 516 {
 517         int ret;
 518
 519         if ((ret = usb_register(&m920x_driver))) {
 520                 err("usb_register failed. Error number %d", ret);
 521                 return ret;
 522         }
 523
 524         return 0;
 525 }
 526
 527 static void __exit m920x_module_exit(void)
 528 {
 529         /* deregister this driver from the USB subsystem */
 530         usb_deregister(&m920x_driver);
 531 }
 532
 533 module_init (m920x_module_init);
 534 module_exit (m920x_module_exit);
 535
 536 MODULE_AUTHOR("Aapo Tahkola <aet@rasterburn.org>");
 537 MODULE_DESCRIPTION("Driver MSI Mega Sky 580 DVB-T USB2.0 / Uli m920x");
 538 MODULE_VERSION("0.1");
 539 MODULE_LICENSE("GPL");