drivers/staging/tm6000/tm6000-cards.c

   1 /*
   2    tm6000-cards.c - driver for TM5600/TM6000 USB video capture devices
   3
   4    Copyright (C) 2006-2007 Mauro Carvalho Chehab <mchehab@infradead.org>
   5
   6    This program is free software; you can redistribute it and/or modify
   7    it under the terms of the GNU General Public License as published by
   8    the Free Software Foundation version 2
   9
  10    This program is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13    GNU General Public License for more details.
  14
  15    You should have received a copy of the GNU General Public License
  16    along with this program; if not, write to the Free Software
  17    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  18  */
  19
  20 #include <linux/init.h>
  21 #include <linux/module.h>
  22 #include <linux/pci.h>
  23 #include <linux/delay.h>
  24 #include <linux/i2c.h>
  25 #include <linux/usb.h>
  26 #include <linux/version.h>
  27 #include <media/v4l2-common.h>
  28 #include <media/tuner.h>
  29
  30 #include "tm6000.h"
  31 #include "tm6000-regs.h"
  32
  33 #define TM6000_BOARD_UNKNOWN                    0
  34 #define TM5600_BOARD_GENERIC                    1
  35 #define TM6000_BOARD_GENERIC                    2
  36 #define TM5600_BOARD_10MOONS_UT821              3
  37 #define TM5600_BOARD_10MOONS_UT330              4
  38 #define TM6000_BOARD_ADSTECH_DUAL_TV            5
  39 #define TM6000_BOARD_FREECOM_AND_SIMILAR        6
  40
  41 #define TM6000_MAXBOARDS        16
  42 static unsigned int card[]     = {[0 ... (TM6000_MAXBOARDS - 1)] = UNSET };
  43
  44 module_param_array(card,  int, NULL, 0444);
  45
  46
  47 struct tm6000_board {
  48         char            *name;
  49
  50         struct tm6000_capabilities caps;
  51
  52         int             tuner_type;     /* type of the tuner */
  53         int             tuner_addr;     /* tuner address */
  54         int             demod_addr;     /* demodulator address */
  55         int             gpio_addr_tun_reset;    /* GPIO used for tuner reset */
  56 };
  57
  58
  59 struct tm6000_board tm6000_boards[] = {
  60         [TM6000_BOARD_UNKNOWN] = {
  61                 .name         = "Unknown tm6000 video grabber",
  62                 .caps = {
  63                         .has_tuner    = 1,
  64                 },
  65                 .gpio_addr_tun_reset = TM6000_GPIO_1,
  66         },
  67         [TM5600_BOARD_GENERIC] = {
  68                 .name         = "Generic tm5600 board",
  69                 .tuner_type   = TUNER_XC2028,
  70                 .tuner_addr   = 0xc2,
  71                 .caps = {
  72                         .has_tuner      = 1,
  73                 },
  74                 .gpio_addr_tun_reset = TM6000_GPIO_1,
  75         },
  76         [TM6000_BOARD_GENERIC] = {
  77                 .name         = "Generic tm6000 board",
  78                 .tuner_type   = TUNER_XC2028,
  79                 .tuner_addr   = 0xc2,
  80                 .caps = {
  81                         .has_tuner      = 1,
  82                         .has_dvb        = 1,
  83                 },
  84                 .gpio_addr_tun_reset = TM6000_GPIO_1,
  85         },
  86         [TM5600_BOARD_10MOONS_UT821] = {
  87                 .name         = "10Moons UT 821",
  88                 .tuner_type   = TUNER_XC2028,
  89                 .tuner_addr   = 0xc2,
  90                 .caps = {
  91                         .has_tuner    = 1,
  92                         .has_eeprom   = 1,
  93                 },
  94                 .gpio_addr_tun_reset = TM6000_GPIO_1,
  95         },
  96         [TM5600_BOARD_10MOONS_UT330] = {
  97                 .name         = "10Moons UT 330",
  98                 .tuner_type   = TUNER_PHILIPS_FQ1216AME_MK4,
  99                 .tuner_addr   = 0xc8,
 100                 .caps = {
 101                         .has_tuner    = 1,
 102                         .has_dvb      = 0,
 103                         .has_zl10353  = 0,
 104                         .has_eeprom   = 1,
 105                 },
 106         },
 107         [TM6000_BOARD_ADSTECH_DUAL_TV] = {
 108                 .name         = "ADSTECH Dual TV USB",
 109                 .tuner_type   = TUNER_XC2028,
 110                 .tuner_addr   = 0xc8,
 111                 .caps = {
 112                         .has_tuner    = 1,
 113                         .has_tda9874  = 1,
 114                         .has_dvb      = 1,
 115                         .has_zl10353  = 1,
 116                         .has_eeprom   = 1,
 117                 },
 118         },
 119         [TM6000_BOARD_FREECOM_AND_SIMILAR] = {
 120                 .name         = "Freecom Hybrid Stick / Moka DVB-T Receiver Dual",
 121                 .tuner_type   = TUNER_XC2028,
 122                 .tuner_addr   = 0xc2,
 123                 .demod_addr   = 0x1e,
 124                 .caps = {
 125                         .has_tuner    = 1,
 126                         .has_dvb      = 1,
 127                         .has_zl10353  = 1,
 128                         .has_eeprom   = 0,
 129                 },
 130                 .gpio_addr_tun_reset = TM6000_GPIO_4,
 131         },
 132 };
 133
 134 /* table of devices that work with this driver */
 135 struct usb_device_id tm6000_id_table [] = {
 136         { USB_DEVICE(0x6000, 0x0001), .driver_info = TM5600_BOARD_10MOONS_UT821 },
 137         { USB_DEVICE(0x06e1, 0xf332), .driver_info = TM6000_BOARD_ADSTECH_DUAL_TV },
 138         { USB_DEVICE(0x14aa, 0x0620), .driver_info = TM6000_BOARD_FREECOM_AND_SIMILAR },
 139         { },
 140 };
 141
 142 static int tm6000_init_dev(struct tm6000_core *dev)
 143 {
 144         struct v4l2_frequency f;
 145         int rc = 0;
 146
 147         mutex_init(&dev->lock);
 148
 149         mutex_lock(&dev->lock);
 150
 151         /* Initializa board-specific data */
 152         dev->tuner_type = tm6000_boards[dev->model].tuner_type;
 153         dev->tuner_addr = tm6000_boards[dev->model].tuner_addr;
 154         dev->tuner_reset_gpio = tm6000_boards[dev->model].gpio_addr_tun_reset;
 155
 156         dev->demod_addr = tm6000_boards[dev->model].demod_addr;
 157
 158         dev->caps = tm6000_boards[dev->model].caps;
 159
 160         /* initialize hardware */
 161         rc=tm6000_init (dev);
 162         if (rc<0)
 163                 goto err;
 164
 165         /* register i2c bus */
 166         rc=tm6000_i2c_register(dev);
 167         if (rc<0)
 168                 goto err;
 169
 170         /* register and initialize V4L2 */
 171         rc=tm6000_v4l2_register(dev);
 172         if (rc<0)
 173                 goto err;
 174
 175         /* Request tuner */
 176         request_module ("tuner");
 177 //      norm=V4L2_STD_NTSC_M;
 178         dev->norm=V4L2_STD_PAL_M;
 179         tm6000_i2c_call_clients(dev, VIDIOC_S_STD, &dev->norm);
 180
 181         /* configure tuner */
 182         f.tuner = 0;
 183         f.type = V4L2_TUNER_ANALOG_TV;
 184         f.frequency = 3092;     /* 193.25 MHz */
 185         dev->freq = f.frequency;
 186
 187         tm6000_i2c_call_clients(dev, VIDIOC_S_FREQUENCY, &f);
 188         if(dev->caps.has_dvb) {
 189                 dev->dvb = kzalloc(sizeof(*(dev->dvb)), GFP_KERNEL);
 190                 if(!dev->dvb) {
 191                         rc = -ENOMEM;
 192                         goto err;
 193                 }
 194 #ifdef CONFIG_VIDEO_TM6000_DVB
 195                 rc = tm6000_dvb_register(dev);
 196                 if(rc < 0) {
 197                         kfree(dev->dvb);
 198                         dev->dvb = NULL;
 199                         goto err;
 200                 }
 201 #endif
 202         }
 203 err:
 204         mutex_unlock(&dev->lock);
 205         return rc;
 206 }
 207
 208 /* high bandwidth multiplier, as encoded in highspeed endpoint descriptors */
 209 #define hb_mult(wMaxPacketSize) (1 + (((wMaxPacketSize) >> 11) & 0x03))
 210
 211 static void get_max_endpoint (  struct usb_device *usbdev,
 212                                 char *msgtype,
 213                                 struct usb_host_endpoint *curr_e,
 214                                 unsigned int *maxsize,
 215                                 struct usb_host_endpoint **ep  )
 216 {
 217         u16 tmp = le16_to_cpu(curr_e->desc.wMaxPacketSize);
 218         unsigned int size = tmp & 0x7ff;
 219
 220         if (usbdev->speed == USB_SPEED_HIGH)
 221                 size = size * hb_mult (tmp);
 222
 223         if (size>*maxsize) {
 224                 *ep = curr_e;
 225                 *maxsize = size;
 226                 printk("tm6000: %s endpoint: 0x%02x (max size=%u bytes)\n",
 227                                         msgtype, curr_e->desc.bEndpointAddress,
 228                                         size);
 229         }
 230 }
 231
 232 /*
 233  * tm6000_usb_probe()
 234  * checks for supported devices
 235  */
 236 static int tm6000_usb_probe(struct usb_interface *interface,
 237                             const struct usb_device_id *id)
 238 {
 239         struct usb_device *usbdev;
 240         struct tm6000_core *dev = NULL;
 241         int i,rc=0;
 242         int nr=0;
 243         char *speed;
 244
 245
 246         usbdev=usb_get_dev(interface_to_usbdev(interface));
 247
 248         /* Selects the proper interface */
 249         rc=usb_set_interface(usbdev,0,1);
 250         if (rc<0)
 251                 goto err;
 252
 253         /* Check to see next free device and mark as used */
 254         nr=find_first_zero_bit(&tm6000_devused,TM6000_MAXBOARDS);
 255         if (nr >= TM6000_MAXBOARDS) {
 256                 printk ("tm6000: Supports only %i em28xx boards.\n",TM6000_MAXBOARDS);
 257                 usb_put_dev(usbdev);
 258                 return -ENOMEM;
 259         }
 260
 261         /* Create and initialize dev struct */
 262         dev = kzalloc(sizeof(*dev), GFP_KERNEL);
 263         if (dev == NULL) {
 264                 printk ("tm6000" ": out of memory!\n");
 265                 usb_put_dev(usbdev);
 266                 return -ENOMEM;
 267         }
 268         spin_lock_init(&dev->slock);
 269
 270         /* Increment usage count */
 271         tm6000_devused|=1<<nr;
 272         snprintf(dev->name, 29, "tm6000 #%d", nr);
 273
 274         dev->model=id->driver_info;
 275         if ((card[nr]>=0) && (card[nr]<ARRAY_SIZE(tm6000_boards))) {
 276                 dev->model=card[nr];
 277         }
 278
 279         INIT_LIST_HEAD(&dev->tm6000_corelist);
 280         dev->udev= usbdev;
 281         dev->devno=nr;
 282
 283         switch (usbdev->speed) {
 284         case USB_SPEED_LOW:
 285                 speed = "1.5";
 286                 break;
 287         case USB_SPEED_UNKNOWN:
 288         case USB_SPEED_FULL:
 289                 speed = "12";
 290                 break;
 291         case USB_SPEED_HIGH:
 292                 speed = "480";
 293                 break;
 294         default:
 295                 speed = "unknown";
 296         }
 297
 298
 299
 300         /* Get endpoints */
 301         for (i = 0; i < interface->num_altsetting; i++) {
 302                 int ep;
 303
 304                 for (ep = 0; ep < interface->altsetting[i].desc.bNumEndpoints; ep++) {
 305                         struct usb_host_endpoint        *e;
 306                         int dir_out;
 307
 308                         e = &interface->altsetting[i].endpoint[ep];
 309
 310                         dir_out = ((e->desc.bEndpointAddress &
 311                                         USB_ENDPOINT_DIR_MASK) == USB_DIR_OUT);
 312
 313                         printk("tm6000: alt %d, interface %i, class %i\n",
 314                                i,
 315                                interface->altsetting[i].desc.bInterfaceNumber,
 316                                interface->altsetting[i].desc.bInterfaceClass);
 317
 318                         switch (e->desc.bmAttributes) {
 319                         case USB_ENDPOINT_XFER_BULK:
 320                                 if (!dir_out) {
 321                                         get_max_endpoint (usbdev, "Bulk IN", e,
 322                                                         &dev->max_bulk_in,
 323                                                         &dev->bulk_in);
 324                                 } else {
 325                                         get_max_endpoint (usbdev, "Bulk OUT", e,
 326                                                         &dev->max_bulk_out,
 327                                                         &dev->bulk_out);
 328                                 }
 329                                 break;
 330                         case USB_ENDPOINT_XFER_ISOC:
 331                                 if (!dir_out) {
 332                                         get_max_endpoint (usbdev, "ISOC IN", e,
 333                                                         &dev->max_isoc_in,
 334                                                         &dev->isoc_in);
 335                                 } else {
 336                                         get_max_endpoint (usbdev, "ISOC OUT", e,
 337                                                         &dev->max_isoc_out,
 338                                                         &dev->isoc_out);
 339                                 }
 340                                 break;
 341                         }
 342                 }
 343         }
 344
 345         if (interface->altsetting->desc.bAlternateSetting) {
 346                 printk("selecting alt setting %d\n",
 347                        interface->altsetting->desc.bAlternateSetting);
 348                 rc = usb_set_interface (usbdev,
 349                                 interface->altsetting->desc.bInterfaceNumber,
 350                                 interface->altsetting->desc.bAlternateSetting);
 351                 if (rc<0)
 352                         goto err;
 353         }
 354
 355         printk("tm6000: New video device @ %s Mbps (%04x:%04x, ifnum %d)\n",
 356                 speed,
 357                 le16_to_cpu(dev->udev->descriptor.idVendor),
 358                 le16_to_cpu(dev->udev->descriptor.idProduct),
 359                 interface->altsetting->desc.bInterfaceNumber);
 360
 361 /* check if the the device has the iso in endpoint at the correct place */
 362         if (!dev->isoc_in) {
 363                 printk("tm6000: probing error: no IN ISOC endpoint!\n");
 364                 rc= -ENODEV;
 365
 366                 goto err;
 367         }
 368
 369         /* save our data pointer in this interface device */
 370         usb_set_intfdata(interface, dev);
 371
 372         printk("tm6000: Found %s\n", tm6000_boards[dev->model].name);
 373
 374         rc=tm6000_init_dev(dev);
 375
 376         if (rc<0)
 377                 goto err;
 378
 379         return 0;
 380
 381 err:
 382         tm6000_devused&=~(1<<nr);
 383         usb_put_dev(usbdev);
 384
 385         kfree(dev);
 386         return rc;
 387 }
 388
 389 /*
 390  * tm6000_usb_disconnect()
 391  * called when the device gets diconencted
 392  * video device will be unregistered on v4l2_close in case it is still open
 393  */
 394 static void tm6000_usb_disconnect(struct usb_interface *interface)
 395 {
 396         struct tm6000_core *dev = usb_get_intfdata(interface);
 397         usb_set_intfdata(interface, NULL);
 398
 399         if (!dev)
 400                 return;
 401
 402         printk("tm6000: disconnecting %s\n", dev->name);
 403
 404         mutex_lock(&dev->lock);
 405
 406 #ifdef CONFIG_VIDEO_TM6000_DVB
 407         if(dev->dvb) {
 408                 tm6000_dvb_unregister(dev);
 409                 kfree(dev->dvb);
 410         }
 411 #endif
 412
 413         tm6000_v4l2_unregister(dev);
 414
 415         tm6000_i2c_unregister(dev);
 416
 417 //      wake_up_interruptible_all(&dev->open);
 418
 419         dev->state |= DEV_DISCONNECTED;
 420
 421         usb_put_dev(dev->udev);
 422
 423         mutex_unlock(&dev->lock);
 424         kfree(dev);
 425 }
 426
 427 static struct usb_driver tm6000_usb_driver = {
 428                 .name = "tm6000",
 429                 .probe = tm6000_usb_probe,
 430                 .disconnect = tm6000_usb_disconnect,
 431                 .id_table = tm6000_id_table,
 432 };
 433
 434 static int __init tm6000_module_init(void)
 435 {
 436         int result;
 437
 438         printk(KERN_INFO "tm6000" " v4l2 driver version %d.%d.%d loaded\n",
 439                (TM6000_VERSION  >> 16) & 0xff,
 440                (TM6000_VERSION  >> 8) & 0xff, TM6000_VERSION  & 0xff);
 441
 442         /* register this driver with the USB subsystem */
 443         result = usb_register(&tm6000_usb_driver);
 444         if (result)
 445                 printk("tm6000"
 446                            " usb_register failed. Error number %d.\n", result);
 447
 448         return result;
 449 }
 450
 451 static void __exit tm6000_module_exit(void)
 452 {
 453         /* deregister at USB subsystem */
 454         usb_deregister(&tm6000_usb_driver);
 455 }
 456
 457 module_init(tm6000_module_init);
 458 module_exit(tm6000_module_exit);
 459
 460 MODULE_DESCRIPTION("Trident TVMaster TM5600/TM6000 USB2 adapter");
 461 MODULE_AUTHOR("Mauro Carvalho Chehab");
 462 MODULE_LICENSE("GPL");