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
  32 #define TM6000_BOARD_UNKNOWN            0
  33 #define TM5600_BOARD_GENERIC            1
  34 #define TM6000_BOARD_GENERIC            2
  35 #define TM5600_BOARD_10MOONS_UT821      3
  36 #define TM6000_BOARD_10MOONS_UT330      4
  37 #define TM6000_BOARD_ADSTECH_DUAL_TV    5
  38
  39 #define TM6000_MAXBOARDS        16
  40 static unsigned int card[]     = {[0 ... (TM6000_MAXBOARDS - 1)] = UNSET };
  41
  42 module_param_array(card,  int, NULL, 0444);
  43
  44 struct tm6000_board {
  45         char            *name;
  46
  47         struct tm6000_capabilities caps;
  48
  49         int             tuner_type;     /* type of the tuner */
  50         int             tuner_addr;     /* tuner address */
  51 };
  52
  53
  54 struct tm6000_board tm6000_boards[] = {
  55         [TM6000_BOARD_UNKNOWN] = {
  56                 .name         = "Unknown tm6000 video grabber",
  57                 .caps = {
  58                         .has_tuner    = 1,
  59                 },
  60         },
  61         [TM5600_BOARD_GENERIC] = {
  62                 .name         = "Generic tm5600 board",
  63                 .tuner_type   = TUNER_XC2028,
  64                 .tuner_addr   = 0xc2,
  65                 .caps = {
  66                         .has_tuner      = 1,
  67                 },
  68         },
  69         [TM6000_BOARD_GENERIC] = {
  70                 .name         = "Generic tm6000 board",
  71                 .tuner_type   = TUNER_XC2028,
  72                 .tuner_addr   = 0xc2,
  73                 .caps = {
  74                         .has_tuner      = 1,
  75                         .has_dvb        = 1,
  76                 },
  77         },
  78         [TM5600_BOARD_10MOONS_UT821] = {
  79                 .name         = "10Moons UT 821",
  80                 .tuner_type   = TUNER_XC2028,
  81                 .tuner_addr   = 0xc2,
  82                 .caps = {
  83                         .has_tuner    = 1,
  84                         .has_eeprom   = 1,
  85                 },
  86         },
  87         [TM6000_BOARD_10MOONS_UT330] = {
  88                 .name         = "10Moons UT 330",
  89                 .tuner_type   = TUNER_XC2028,
  90                 .tuner_addr   = 0xc8,
  91                 .caps = {
  92                         .has_tuner    = 1,
  93                         .has_dvb      = 1,
  94                         .has_zl10353  = 1,
  95                         .has_eeprom   = 1,
  96                 },
  97         },
  98         [TM6000_BOARD_ADSTECH_DUAL_TV] = {
  99                 .name         = "ADSTECH Dual TV USB",
 100                 .tuner_type   = TUNER_XC2028,
 101                 .tuner_addr   = 0xc8,
 102                 .caps = {
 103                         .has_tuner    = 1,
 104                         .has_tda9874  = 1,
 105                         .has_dvb      = 1,
 106                         .has_zl10353  = 1,
 107                         .has_eeprom   = 1,
 108                 },
 109         },
 110 };
 111
 112 /* table of devices that work with this driver */
 113 struct usb_device_id tm6000_id_table [] = {
 114         { USB_DEVICE(0x6000, 0x0001), .driver_info = TM5600_BOARD_10MOONS_UT821 },
 115         { USB_DEVICE(0x06e1, 0xf332), .driver_info = TM6000_BOARD_ADSTECH_DUAL_TV },
 116         { },
 117 };
 118
 119 static int tm6000_init_dev(struct tm6000_core *dev)
 120 {
 121         struct v4l2_frequency f;
 122         int rc = 0;
 123
 124         mutex_init(&dev->lock);
 125
 126         mutex_lock(&dev->lock);
 127
 128         /* Initializa board-specific data */
 129         dev->tuner_type = tm6000_boards[dev->model].tuner_type;
 130         dev->tuner_addr = tm6000_boards[dev->model].tuner_addr;
 131
 132         dev->caps = tm6000_boards[dev->model].caps;
 133
 134         /* initialize hardware */
 135         rc=tm6000_init (dev);
 136         if (rc<0)
 137                 goto err;
 138
 139         /* register i2c bus */
 140         rc=tm6000_i2c_register(dev);
 141         if (rc<0)
 142                 goto err;
 143
 144         /* register and initialize V4L2 */
 145         rc=tm6000_v4l2_register(dev);
 146         if (rc<0)
 147                 goto err;
 148
 149         /* Request tuner */
 150         request_module ("tuner");
 151 //      norm=V4L2_STD_NTSC_M;
 152         dev->norm=V4L2_STD_PAL_M;
 153         tm6000_i2c_call_clients(dev, VIDIOC_S_STD, &dev->norm);
 154
 155         /* configure tuner */
 156         f.tuner = 0;
 157         f.type = V4L2_TUNER_ANALOG_TV;
 158         f.frequency = 3092;     /* 193.25 MHz */
 159         dev->freq = f.frequency;
 160
 161         tm6000_i2c_call_clients(dev, VIDIOC_S_FREQUENCY, &f);
 162
 163 err:
 164         mutex_unlock(&dev->lock);
 165         return rc;
 166 }
 167
 168 /* high bandwidth multiplier, as encoded in highspeed endpoint descriptors */
 169 #define hb_mult(wMaxPacketSize) (1 + (((wMaxPacketSize) >> 11) & 0x03))
 170
 171 static void get_max_endpoint (  struct usb_device *usbdev,
 172                                 char *msgtype,
 173                                 struct usb_host_endpoint *curr_e,
 174                                 unsigned int *maxsize,
 175                                 struct usb_host_endpoint **ep  )
 176 {
 177         u16 tmp = le16_to_cpu(curr_e->desc.wMaxPacketSize);
 178         unsigned int size = tmp & 0x7ff;
 179
 180         if (usbdev->speed == USB_SPEED_HIGH)
 181                 size = size * hb_mult (tmp);
 182
 183         if (size>*maxsize) {
 184                 *ep = curr_e;
 185                 *maxsize = size;
 186                 printk("tm6000: %s endpoint: 0x%02x (max size=%u bytes)\n",
 187                                         msgtype, curr_e->desc.bEndpointAddress,
 188                                         size);
 189         }
 190 }
 191
 192 /*
 193  * tm6000_usb_probe()
 194  * checks for supported devices
 195  */
 196 static int tm6000_usb_probe(struct usb_interface *interface,
 197                             const struct usb_device_id *id)
 198 {
 199         struct usb_device *usbdev;
 200         struct tm6000_core *dev = NULL;
 201         int i,rc=0;
 202         int nr=0;
 203         char *speed;
 204
 205
 206         usbdev=usb_get_dev(interface_to_usbdev(interface));
 207
 208         /* Selects the proper interface */
 209         rc=usb_set_interface(usbdev,0,1);
 210         if (rc<0)
 211                 goto err;
 212
 213         /* Check to see next free device and mark as used */
 214         nr=find_first_zero_bit(&tm6000_devused,TM6000_MAXBOARDS);
 215         if (nr >= TM6000_MAXBOARDS) {
 216                 printk ("tm6000: Supports only %i em28xx boards.\n",TM6000_MAXBOARDS);
 217                 usb_put_dev(usbdev);
 218                 return -ENOMEM;
 219         }
 220
 221         /* Create and initialize dev struct */
 222         dev = kzalloc(sizeof(*dev), GFP_KERNEL);
 223         if (dev == NULL) {
 224                 printk ("tm6000" ": out of memory!\n");
 225                 usb_put_dev(usbdev);
 226                 return -ENOMEM;
 227         }
 228         spin_lock_init(&dev->slock);
 229
 230         /* Increment usage count */
 231         tm6000_devused|=1<<nr;
 232
 233         INIT_LIST_HEAD(&dev->tm6000_corelist);
 234         dev->udev= usbdev;
 235         dev->model=id->driver_info;
 236         snprintf(dev->name, 29, "tm6000 #%d", nr);
 237         dev->devno=nr;
 238
 239         switch (usbdev->speed) {
 240         case USB_SPEED_LOW:
 241                 speed = "1.5";
 242                 break;
 243         case USB_SPEED_UNKNOWN:
 244         case USB_SPEED_FULL:
 245                 speed = "12";
 246                 break;
 247         case USB_SPEED_HIGH:
 248                 speed = "480";
 249                 break;
 250         default:
 251                 speed = "unknown";
 252         }
 253
 254
 255
 256         /* Get endpoints */
 257         for (i = 0; i < interface->num_altsetting; i++) {
 258                 int ep;
 259
 260                 for (ep = 0; ep < interface->altsetting[i].desc.bNumEndpoints; ep++) {
 261                         struct usb_host_endpoint        *e;
 262                         int dir_out;
 263
 264                         e = &interface->altsetting[i].endpoint[ep];
 265
 266                         dir_out = ((e->desc.bEndpointAddress &
 267                                         USB_ENDPOINT_DIR_MASK) == USB_DIR_OUT);
 268
 269                         printk("tm6000: alt %d, interface %i, class %i\n",
 270                                i,
 271                                interface->altsetting[i].desc.bInterfaceNumber,
 272                                interface->altsetting[i].desc.bInterfaceClass);
 273
 274                         switch (e->desc.bmAttributes) {
 275                         case USB_ENDPOINT_XFER_BULK:
 276                                 if (!dir_out) {
 277                                         get_max_endpoint (usbdev, "Bulk IN", e,
 278                                                         &dev->max_bulk_in,
 279                                                         &dev->bulk_in);
 280                                 } else {
 281                                         get_max_endpoint (usbdev, "Bulk OUT", e,
 282                                                         &dev->max_bulk_out,
 283                                                         &dev->bulk_out);
 284                                 }
 285                                 break;
 286                         case USB_ENDPOINT_XFER_ISOC:
 287                                 if (!dir_out) {
 288                                         get_max_endpoint (usbdev, "ISOC IN", e,
 289                                                         &dev->max_isoc_in,
 290                                                         &dev->isoc_in);
 291                                 } else {
 292                                         get_max_endpoint (usbdev, "ISOC OUT", e,
 293                                                         &dev->max_isoc_out,
 294                                                         &dev->isoc_out);
 295                                 }
 296                                 break;
 297                         }
 298                 }
 299         }
 300
 301         if (interface->altsetting->desc.bAlternateSetting) {
 302                 printk("selecting alt setting %d\n",
 303                        interface->altsetting->desc.bAlternateSetting);
 304                 rc = usb_set_interface (usbdev,
 305                                 interface->altsetting->desc.bInterfaceNumber,
 306                                 interface->altsetting->desc.bAlternateSetting);
 307                 if (rc<0)
 308                         goto err;
 309         }
 310
 311         printk("tm6000: New video device @ %s Mbps (%04x:%04x, ifnum %d)\n",
 312                 speed,
 313                 le16_to_cpu(dev->udev->descriptor.idVendor),
 314                 le16_to_cpu(dev->udev->descriptor.idProduct),
 315                 interface->altsetting->desc.bInterfaceNumber);
 316
 317 /* check if the the device has the iso in endpoint at the correct place */
 318         if (!dev->isoc_in) {
 319                 printk("tm6000: probing error: no IN ISOC endpoint!\n");
 320                 rc= -ENODEV;
 321
 322                 goto err;
 323         }
 324
 325         /* save our data pointer in this interface device */
 326         usb_set_intfdata(interface, dev);
 327
 328         printk("tm6000: Found %s\n", tm6000_boards[dev->model].name);
 329
 330         rc=tm6000_init_dev(dev);
 331
 332         if (rc<0)
 333                 goto err;
 334
 335         return 0;
 336
 337 err:
 338         tm6000_devused&=~(1<<nr);
 339         usb_put_dev(usbdev);
 340
 341         kfree(dev);
 342         return rc;
 343 }
 344
 345 /*
 346  * tm6000_usb_disconnect()
 347  * called when the device gets diconencted
 348  * video device will be unregistered on v4l2_close in case it is still open
 349  */
 350 static void tm6000_usb_disconnect(struct usb_interface *interface)
 351 {
 352         struct tm6000_core *dev = usb_get_intfdata(interface);
 353         usb_set_intfdata(interface, NULL);
 354
 355         if (!dev)
 356                 return;
 357
 358         printk("tm6000: disconnecting %s\n", dev->name);
 359
 360         mutex_lock(&dev->lock);
 361
 362         tm6000_i2c_unregister(dev);
 363
 364         tm6000_v4l2_unregister(dev);
 365
 366 //      wake_up_interruptible_all(&dev->open);
 367
 368         dev->state |= DEV_DISCONNECTED;
 369
 370         mutex_unlock(&dev->lock);
 371         kfree(dev);
 372 }
 373
 374 static struct usb_driver tm6000_usb_driver = {
 375                 .name = "tm6000",
 376                 .probe = tm6000_usb_probe,
 377                 .disconnect = tm6000_usb_disconnect,
 378                 .id_table = tm6000_id_table,
 379 };
 380
 381 static int __init tm6000_module_init(void)
 382 {
 383         int result;
 384
 385         printk(KERN_INFO "tm6000" " v4l2 driver version %d.%d.%d loaded\n",
 386                (TM6000_VERSION  >> 16) & 0xff,
 387                (TM6000_VERSION  >> 8) & 0xff, TM6000_VERSION  & 0xff);
 388
 389         /* register this driver with the USB subsystem */
 390         result = usb_register(&tm6000_usb_driver);
 391         if (result)
 392                 printk("tm6000"
 393                            " usb_register failed. Error number %d.\n", result);
 394
 395         return result;
 396 }
 397
 398 static void __exit tm6000_module_exit(void)
 399 {
 400         /* deregister at USB subsystem */
 401         usb_deregister(&tm6000_usb_driver);
 402 }
 403
 404 module_init(tm6000_module_init);
 405 module_exit(tm6000_module_exit);
 406
 407 MODULE_DESCRIPTION("Trident TVMaster TM5600/TM6000 USB2 adapter");
 408 MODULE_AUTHOR("Mauro Carvalho Chehab");
 409 MODULE_LICENSE("GPL");