drivers/media/dvb/dvb-usb/vp702x.c

   1 /* DVB USB compliant Linux driver for the TwinhanDTV StarBox USB2.0 DVB-S
   2  * receiver.
   3  *
   4  * Copyright (C) 2005 Ralph Metzler <rjkm@metzlerbros.de>
   5  *                    Metzler Brothers Systementwicklung GbR
   6  *
   7  * Copyright (C) 2005 Patrick Boettcher <patrick.boettcher@desy.de>
   8  *
   9  * Thanks to Twinhan who kindly provided hardware and information.
  10  *
  11  *      This program is free software; you can redistribute it and/or modify it
  12  *      under the terms of the GNU General Public License as published by the Free
  13  *      Software Foundation, version 2.
  14  *
  15  * see Documentation/dvb/README.dvb-usb for more information
  16  */
  17 #include "vp702x.h"
  18
  19 /* debug */
  20 int dvb_usb_vp702x_debug;
  21 module_param_named(debug,dvb_usb_vp702x_debug, int, 0644);
  22 MODULE_PARM_DESC(debug, "set debugging level (1=info,xfer=2,rc=4 (or-able))." DVB_USB_DEBUG_STATUS);
  23
  24 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
  25
  26 struct vp702x_state {
  27         int pid_filter_count;
  28         int pid_filter_can_bypass;
  29         u8  pid_filter_state;
  30 };
  31
  32 struct vp702x_device_state {
  33         u8 power_state;
  34 };
  35
  36 /* check for mutex FIXME */
  37 int vp702x_usb_in_op(struct dvb_usb_device *d, u8 req, u16 value, u16 index, u8 *b, int blen)
  38 {
  39         int ret = -1;
  40
  41                 ret = usb_control_msg(d->udev,
  42                         usb_rcvctrlpipe(d->udev,0),
  43                         req,
  44                         USB_TYPE_VENDOR | USB_DIR_IN,
  45                         value,index,b,blen,
  46                         2000);
  47
  48         if (ret < 0) {
  49                 warn("usb in operation failed. (%d)", ret);
  50                 ret = -EIO;
  51         } else
  52                 ret = 0;
  53
  54
  55         deb_xfer("in: req. %02x, val: %04x, ind: %04x, buffer: ",req,value,index);
  56         debug_dump(b,blen,deb_xfer);
  57
  58         return ret;
  59 }
  60
  61 static int vp702x_usb_out_op(struct dvb_usb_device *d, u8 req, u16 value,
  62                              u16 index, u8 *b, int blen)
  63 {
  64         int ret;
  65         deb_xfer("out: req. %02x, val: %04x, ind: %04x, buffer: ",req,value,index);
  66         debug_dump(b,blen,deb_xfer);
  67
  68         if ((ret = usb_control_msg(d->udev,
  69                         usb_sndctrlpipe(d->udev,0),
  70                         req,
  71                         USB_TYPE_VENDOR | USB_DIR_OUT,
  72                         value,index,b,blen,
  73                         2000)) != blen) {
  74                 warn("usb out operation failed. (%d)",ret);
  75                 return -EIO;
  76         } else
  77                 return 0;
  78 }
  79
  80 int vp702x_usb_inout_op(struct dvb_usb_device *d, u8 *o, int olen, u8 *i, int ilen, int msec)
  81 {
  82         int ret;
  83
  84         if ((ret = mutex_lock_interruptible(&d->usb_mutex)))
  85                 return ret;
  86
  87         ret = vp702x_usb_out_op(d,REQUEST_OUT,0,0,o,olen);
  88         msleep(msec);
  89         ret = vp702x_usb_in_op(d,REQUEST_IN,0,0,i,ilen);
  90
  91         mutex_unlock(&d->usb_mutex);
  92
  93         return ret;
  94 }
  95
  96 static int vp702x_usb_inout_cmd(struct dvb_usb_device *d, u8 cmd, u8 *o,
  97                                 int olen, u8 *i, int ilen, int msec)
  98 {
  99         u8 bout[olen+2];
 100         u8 bin[ilen+1];
 101         int ret = 0;
 102
 103         bout[0] = 0x00;
 104         bout[1] = cmd;
 105         memcpy(&bout[2],o,olen);
 106
 107         ret = vp702x_usb_inout_op(d, bout, olen+2, bin, ilen+1,msec);
 108
 109         if (ret == 0)
 110                 memcpy(i,&bin[1],ilen);
 111
 112         return ret;
 113 }
 114
 115 static int vp702x_set_pld_mode(struct dvb_usb_adapter *adap, u8 bypass)
 116 {
 117         u8 buf[16] = { 0 };
 118         return vp702x_usb_in_op(adap->dev, 0xe0, (bypass << 8) | 0x0e, 0, buf, 16);
 119 }
 120
 121 static int vp702x_set_pld_state(struct dvb_usb_adapter *adap, u8 state)
 122 {
 123         u8 buf[16] = { 0 };
 124         return vp702x_usb_in_op(adap->dev, 0xe0, (state << 8) | 0x0f, 0, buf, 16);
 125 }
 126
 127 static int vp702x_set_pid(struct dvb_usb_adapter *adap, u16 pid, u8 id, int onoff)
 128 {
 129         struct vp702x_state *st = adap->priv;
 130         u8 buf[16] = { 0 };
 131
 132         if (onoff)
 133                 st->pid_filter_state |=  (1 << id);
 134         else {
 135                 st->pid_filter_state &= ~(1 << id);
 136                 pid = 0xffff;
 137         }
 138
 139         id = 0x10 + id*2;
 140
 141         vp702x_set_pld_state(adap, st->pid_filter_state);
 142         vp702x_usb_in_op(adap->dev, 0xe0, (((pid >> 8) & 0xff) << 8) | (id), 0, buf, 16);
 143         vp702x_usb_in_op(adap->dev, 0xe0, (((pid     ) & 0xff) << 8) | (id+1), 0, buf, 16);
 144         return 0;
 145 }
 146
 147
 148 static int vp702x_init_pid_filter(struct dvb_usb_adapter *adap)
 149 {
 150         struct vp702x_state *st = adap->priv;
 151         int i;
 152         u8 b[10] = { 0 };
 153
 154         st->pid_filter_count = 8;
 155         st->pid_filter_can_bypass = 1;
 156         st->pid_filter_state = 0x00;
 157
 158         vp702x_set_pld_mode(adap, 1); // bypass
 159
 160         for (i = 0; i < st->pid_filter_count; i++)
 161                 vp702x_set_pid(adap, 0xffff, i, 1);
 162
 163         vp702x_usb_in_op(adap->dev, 0xb5, 3, 0, b, 10);
 164         vp702x_usb_in_op(adap->dev, 0xb5, 0, 0, b, 10);
 165         vp702x_usb_in_op(adap->dev, 0xb5, 1, 0, b, 10);
 166
 167         //vp702x_set_pld_mode(d, 0); // filter
 168         return 0;
 169 }
 170
 171 static int vp702x_streaming_ctrl(struct dvb_usb_adapter *adap, int onoff)
 172 {
 173         return 0;
 174 }
 175
 176 /* keys for the enclosed remote control */
 177 static struct dvb_usb_rc_key vp702x_rc_keys[] = {
 178         { 0x00, 0x01, KEY_1 },
 179         { 0x00, 0x02, KEY_2 },
 180 };
 181
 182 /* remote control stuff (does not work with my box) */
 183 static int vp702x_rc_query(struct dvb_usb_device *d, u32 *event, int *state)
 184 {
 185         u8 key[10];
 186         int i;
 187
 188 /* remove the following return to enabled remote querying */
 189         return 0;
 190
 191         vp702x_usb_in_op(d,READ_REMOTE_REQ,0,0,key,10);
 192
 193         deb_rc("remote query key: %x %d\n",key[1],key[1]);
 194
 195         if (key[1] == 0x44) {
 196                 *state = REMOTE_NO_KEY_PRESSED;
 197                 return 0;
 198         }
 199
 200         for (i = 0; i < ARRAY_SIZE(vp702x_rc_keys); i++)
 201                 if (vp702x_rc_keys[i].custom == key[1]) {
 202                         *state = REMOTE_KEY_PRESSED;
 203                         *event = vp702x_rc_keys[i].event;
 204                         break;
 205                 }
 206         return 0;
 207 }
 208
 209
 210 static int vp702x_read_mac_addr(struct dvb_usb_device *d,u8 mac[6])
 211 {
 212         u8 i;
 213         for (i = 6; i < 12; i++)
 214                 vp702x_usb_in_op(d, READ_EEPROM_REQ, i, 1, &mac[i - 6], 1);
 215         return 0;
 216 }
 217
 218 static int vp702x_frontend_attach(struct dvb_usb_adapter *adap)
 219 {
 220         u8 buf[10] = { 0 };
 221
 222         vp702x_usb_out_op(adap->dev, SET_TUNER_POWER_REQ, 0, 7, NULL, 0);
 223
 224         if (vp702x_usb_inout_cmd(adap->dev, GET_SYSTEM_STRING, NULL, 0, buf, 10, 10))
 225                 return -EIO;
 226
 227         buf[9] = '\0';
 228         info("system string: %s",&buf[1]);
 229
 230         vp702x_init_pid_filter(adap);
 231
 232         adap->fe = vp702x_fe_attach(adap->dev);
 233         vp702x_usb_out_op(adap->dev, SET_TUNER_POWER_REQ, 1, 7, NULL, 0);
 234
 235         return 0;
 236 }
 237
 238 static struct dvb_usb_device_properties vp702x_properties;
 239
 240 static int vp702x_usb_probe(struct usb_interface *intf,
 241                 const struct usb_device_id *id)
 242 {
 243         return dvb_usb_device_init(intf, &vp702x_properties,
 244                                    THIS_MODULE, NULL, adapter_nr);
 245 }
 246
 247 static struct usb_device_id vp702x_usb_table [] = {
 248             { USB_DEVICE(USB_VID_VISIONPLUS, USB_PID_TWINHAN_VP7021_COLD) },
 249 //          { USB_DEVICE(USB_VID_VISIONPLUS, USB_PID_TWINHAN_VP7020_COLD) },
 250 //          { USB_DEVICE(USB_VID_VISIONPLUS, USB_PID_TWINHAN_VP7020_WARM) },
 251             { 0 },
 252 };
 253 MODULE_DEVICE_TABLE(usb, vp702x_usb_table);
 254
 255 static struct dvb_usb_device_properties vp702x_properties = {
 256         .usb_ctrl = CYPRESS_FX2,
 257         .firmware            = "dvb-usb-vp702x-02.fw",
 258         .no_reconnect        = 1,
 259
 260         .size_of_priv     = sizeof(struct vp702x_device_state),
 261
 262         .num_adapters = 1,
 263         .adapter = {
 264                 {
 265                         .caps             = DVB_USB_ADAP_RECEIVES_204_BYTE_TS,
 266
 267                         .streaming_ctrl   = vp702x_streaming_ctrl,
 268                         .frontend_attach  = vp702x_frontend_attach,
 269
 270                         /* parameter for the MPEG2-data transfer */
 271                         .stream = {
 272                                 .type = USB_BULK,
 273                                 .count = 10,
 274                                 .endpoint = 0x02,
 275                                 .u = {
 276                                         .bulk = {
 277                                                 .buffersize = 4096,
 278                                         }
 279                                 }
 280                         },
 281                         .size_of_priv     = sizeof(struct vp702x_state),
 282                 }
 283         },
 284         .read_mac_address = vp702x_read_mac_addr,
 285
 286         .rc_key_map       = vp702x_rc_keys,
 287         .rc_key_map_size  = ARRAY_SIZE(vp702x_rc_keys),
 288         .rc_interval      = 400,
 289         .rc_query         = vp702x_rc_query,
 290
 291         .num_device_descs = 1,
 292         .devices = {
 293                 { .name = "TwinhanDTV StarBox DVB-S USB2.0 (VP7021)",
 294                   .cold_ids = { &vp702x_usb_table[0], NULL },
 295                   .warm_ids = { NULL },
 296                 },
 297 /*              { .name = "TwinhanDTV StarBox DVB-S USB2.0 (VP7020)",
 298                   .cold_ids = { &vp702x_usb_table[2], NULL },
 299                   .warm_ids = { &vp702x_usb_table[3], NULL },
 300                 },
 301 */              { NULL },
 302         }
 303 };
 304
 305 /* usb specific object needed to register this driver with the usb subsystem */
 306 static struct usb_driver vp702x_usb_driver = {
 307         .name           = "dvb_usb_vp702x",
 308         .probe          = vp702x_usb_probe,
 309         .disconnect = dvb_usb_device_exit,
 310         .id_table       = vp702x_usb_table,
 311 };
 312
 313 /* module stuff */
 314 static int __init vp702x_usb_module_init(void)
 315 {
 316         int result;
 317         if ((result = usb_register(&vp702x_usb_driver))) {
 318                 err("usb_register failed. (%d)",result);
 319                 return result;
 320         }
 321
 322         return 0;
 323 }
 324
 325 static void __exit vp702x_usb_module_exit(void)
 326 {
 327         /* deregister this driver from the USB subsystem */
 328         usb_deregister(&vp702x_usb_driver);
 329 }
 330
 331 module_init(vp702x_usb_module_init);
 332 module_exit(vp702x_usb_module_exit);
 333
 334 MODULE_AUTHOR("Patrick Boettcher <patrick.boettcher@desy.de>");
 335 MODULE_DESCRIPTION("Driver for Twinhan StarBox DVB-S USB2.0 and clones");
 336 MODULE_VERSION("1.0");
 337 MODULE_LICENSE("GPL");