release/src-rt-6.x.4708/linux/linux-2.6.36/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 int vp702x_usb_in_op(struct dvb_usb_device *d, u8 req, u16 value, u16 index, u8 *b, int blen)
  37 {
  38         int ret = -1;
  39
  40                 ret = usb_control_msg(d->udev,
  41                         usb_rcvctrlpipe(d->udev,0),
  42                         req,
  43                         USB_TYPE_VENDOR | USB_DIR_IN,
  44                         value,index,b,blen,
  45                         2000);
  46
  47         if (ret < 0) {
  48                 warn("usb in operation failed. (%d)", ret);
  49                 ret = -EIO;
  50         } else
  51                 ret = 0;
  52
  53
  54         deb_xfer("in: req. %02x, val: %04x, ind: %04x, buffer: ",req,value,index);
  55         debug_dump(b,blen,deb_xfer);
  56
  57         return ret;
  58 }
  59
  60 static int vp702x_usb_out_op(struct dvb_usb_device *d, u8 req, u16 value,
  61                              u16 index, u8 *b, int blen)
  62 {
  63         int ret;
  64         deb_xfer("out: req. %02x, val: %04x, ind: %04x, buffer: ",req,value,index);
  65         debug_dump(b,blen,deb_xfer);
  66
  67         if ((ret = usb_control_msg(d->udev,
  68                         usb_sndctrlpipe(d->udev,0),
  69                         req,
  70                         USB_TYPE_VENDOR | USB_DIR_OUT,
  71                         value,index,b,blen,
  72                         2000)) != blen) {
  73                 warn("usb out operation failed. (%d)",ret);
  74                 return -EIO;
  75         } else
  76                 return 0;
  77 }
  78
  79 int vp702x_usb_inout_op(struct dvb_usb_device *d, u8 *o, int olen, u8 *i, int ilen, int msec)
  80 {
  81         int ret;
  82
  83         if ((ret = mutex_lock_interruptible(&d->usb_mutex)))
  84                 return ret;
  85
  86         ret = vp702x_usb_out_op(d,REQUEST_OUT,0,0,o,olen);
  87         msleep(msec);
  88         ret = vp702x_usb_in_op(d,REQUEST_IN,0,0,i,ilen);
  89
  90         mutex_unlock(&d->usb_mutex);
  91
  92         return ret;
  93 }
  94
  95 static int vp702x_usb_inout_cmd(struct dvb_usb_device *d, u8 cmd, u8 *o,
  96                                 int olen, u8 *i, int ilen, int msec)
  97 {
  98         u8 bout[olen+2];
  99         u8 bin[ilen+1];
 100         int ret = 0;
 101
 102         bout[0] = 0x00;
 103         bout[1] = cmd;
 104         memcpy(&bout[2],o,olen);
 105
 106         ret = vp702x_usb_inout_op(d, bout, olen+2, bin, ilen+1,msec);
 107
 108         if (ret == 0)
 109                 memcpy(i,&bin[1],ilen);
 110
 111         return ret;
 112 }
 113
 114 static int vp702x_set_pld_mode(struct dvb_usb_adapter *adap, u8 bypass)
 115 {
 116         u8 buf[16] = { 0 };
 117         return vp702x_usb_in_op(adap->dev, 0xe0, (bypass << 8) | 0x0e, 0, buf, 16);
 118 }
 119
 120 static int vp702x_set_pld_state(struct dvb_usb_adapter *adap, u8 state)
 121 {
 122         u8 buf[16] = { 0 };
 123         return vp702x_usb_in_op(adap->dev, 0xe0, (state << 8) | 0x0f, 0, buf, 16);
 124 }
 125
 126 static int vp702x_set_pid(struct dvb_usb_adapter *adap, u16 pid, u8 id, int onoff)
 127 {
 128         struct vp702x_state *st = adap->priv;
 129         u8 buf[16] = { 0 };
 130
 131         if (onoff)
 132                 st->pid_filter_state |=  (1 << id);
 133         else {
 134                 st->pid_filter_state &= ~(1 << id);
 135                 pid = 0xffff;
 136         }
 137
 138         id = 0x10 + id*2;
 139
 140         vp702x_set_pld_state(adap, st->pid_filter_state);
 141         vp702x_usb_in_op(adap->dev, 0xe0, (((pid >> 8) & 0xff) << 8) | (id), 0, buf, 16);
 142         vp702x_usb_in_op(adap->dev, 0xe0, (((pid     ) & 0xff) << 8) | (id+1), 0, buf, 16);
 143         return 0;
 144 }
 145
 146
 147 static int vp702x_init_pid_filter(struct dvb_usb_adapter *adap)
 148 {
 149         struct vp702x_state *st = adap->priv;
 150         int i;
 151         u8 b[10] = { 0 };
 152
 153         st->pid_filter_count = 8;
 154         st->pid_filter_can_bypass = 1;
 155         st->pid_filter_state = 0x00;
 156
 157         vp702x_set_pld_mode(adap, 1); // bypass
 158
 159         for (i = 0; i < st->pid_filter_count; i++)
 160                 vp702x_set_pid(adap, 0xffff, i, 1);
 161
 162         vp702x_usb_in_op(adap->dev, 0xb5, 3, 0, b, 10);
 163         vp702x_usb_in_op(adap->dev, 0xb5, 0, 0, b, 10);
 164         vp702x_usb_in_op(adap->dev, 0xb5, 1, 0, b, 10);
 165
 166         //vp702x_set_pld_mode(d, 0); // filter
 167         return 0;
 168 }
 169
 170 static int vp702x_streaming_ctrl(struct dvb_usb_adapter *adap, int onoff)
 171 {
 172         return 0;
 173 }
 174
 175 /* keys for the enclosed remote control */
 176 static struct ir_scancode ir_codes_vp702x_table[] = {
 177         { 0x0001, KEY_1 },
 178         { 0x0002, KEY_2 },
 179 };
 180
 181 /* remote control stuff (does not work with my box) */
 182 static int vp702x_rc_query(struct dvb_usb_device *d, u32 *event, int *state)
 183 {
 184         u8 key[10];
 185         int i;
 186
 187 /* remove the following return to enabled remote querying */
 188         return 0;
 189
 190         vp702x_usb_in_op(d,READ_REMOTE_REQ,0,0,key,10);
 191
 192         deb_rc("remote query key: %x %d\n",key[1],key[1]);
 193
 194         if (key[1] == 0x44) {
 195                 *state = REMOTE_NO_KEY_PRESSED;
 196                 return 0;
 197         }
 198
 199         for (i = 0; i < ARRAY_SIZE(ir_codes_vp702x_table); i++)
 200                 if (rc5_custom(&ir_codes_vp702x_table[i]) == key[1]) {
 201                         *state = REMOTE_KEY_PRESSED;
 202                         *event = ir_codes_vp702x_table[i].keycode;
 203                         break;
 204                 }
 205         return 0;
 206 }
 207
 208
 209 static int vp702x_read_mac_addr(struct dvb_usb_device *d,u8 mac[6])
 210 {
 211         u8 i;
 212         for (i = 6; i < 12; i++)
 213                 vp702x_usb_in_op(d, READ_EEPROM_REQ, i, 1, &mac[i - 6], 1);
 214         return 0;
 215 }
 216
 217 static int vp702x_frontend_attach(struct dvb_usb_adapter *adap)
 218 {
 219         u8 buf[10] = { 0 };
 220
 221         vp702x_usb_out_op(adap->dev, SET_TUNER_POWER_REQ, 0, 7, NULL, 0);
 222
 223         if (vp702x_usb_inout_cmd(adap->dev, GET_SYSTEM_STRING, NULL, 0, buf, 10, 10))
 224                 return -EIO;
 225
 226         buf[9] = '\0';
 227         info("system string: %s",&buf[1]);
 228
 229         vp702x_init_pid_filter(adap);
 230
 231         adap->fe = vp702x_fe_attach(adap->dev);
 232         vp702x_usb_out_op(adap->dev, SET_TUNER_POWER_REQ, 1, 7, NULL, 0);
 233
 234         return 0;
 235 }
 236
 237 static struct dvb_usb_device_properties vp702x_properties;
 238
 239 static int vp702x_usb_probe(struct usb_interface *intf,
 240                 const struct usb_device_id *id)
 241 {
 242         return dvb_usb_device_init(intf, &vp702x_properties,
 243                                    THIS_MODULE, NULL, adapter_nr);
 244 }
 245
 246 static struct usb_device_id vp702x_usb_table [] = {
 247             { USB_DEVICE(USB_VID_VISIONPLUS, USB_PID_TWINHAN_VP7021_COLD) },
 248 //          { USB_DEVICE(USB_VID_VISIONPLUS, USB_PID_TWINHAN_VP7020_COLD) },
 249 //          { USB_DEVICE(USB_VID_VISIONPLUS, USB_PID_TWINHAN_VP7020_WARM) },
 250             { 0 },
 251 };
 252 MODULE_DEVICE_TABLE(usb, vp702x_usb_table);
 253
 254 static struct dvb_usb_device_properties vp702x_properties = {
 255         .usb_ctrl = CYPRESS_FX2,
 256         .firmware            = "dvb-usb-vp702x-02.fw",
 257         .no_reconnect        = 1,
 258
 259         .size_of_priv     = sizeof(struct vp702x_device_state),
 260
 261         .num_adapters = 1,
 262         .adapter = {
 263                 {
 264                         .caps             = DVB_USB_ADAP_RECEIVES_204_BYTE_TS,
 265
 266                         .streaming_ctrl   = vp702x_streaming_ctrl,
 267                         .frontend_attach  = vp702x_frontend_attach,
 268
 269                         /* parameter for the MPEG2-data transfer */
 270                         .stream = {
 271                                 .type = USB_BULK,
 272                                 .count = 10,
 273                                 .endpoint = 0x02,
 274                                 .u = {
 275                                         .bulk = {
 276                                                 .buffersize = 4096,
 277                                         }
 278                                 }
 279                         },
 280                         .size_of_priv     = sizeof(struct vp702x_state),
 281                 }
 282         },
 283         .read_mac_address = vp702x_read_mac_addr,
 284
 285         .rc.legacy = {
 286                 .rc_key_map       = ir_codes_vp702x_table,
 287                 .rc_key_map_size  = ARRAY_SIZE(ir_codes_vp702x_table),
 288                 .rc_interval      = 400,
 289                 .rc_query         = vp702x_rc_query,
 290         },
 291
 292         .num_device_descs = 1,
 293         .devices = {
 294                 { .name = "TwinhanDTV StarBox DVB-S USB2.0 (VP7021)",
 295                   .cold_ids = { &vp702x_usb_table[0], NULL },
 296                   .warm_ids = { NULL },
 297                 },
 298 /*              { .name = "TwinhanDTV StarBox DVB-S USB2.0 (VP7020)",
 299                   .cold_ids = { &vp702x_usb_table[2], NULL },
 300                   .warm_ids = { &vp702x_usb_table[3], NULL },
 301                 },
 302 */              { NULL },
 303         }
 304 };
 305
 306 /* usb specific object needed to register this driver with the usb subsystem */
 307 static struct usb_driver vp702x_usb_driver = {
 308         .name           = "dvb_usb_vp702x",
 309         .probe          = vp702x_usb_probe,
 310         .disconnect = dvb_usb_device_exit,
 311         .id_table       = vp702x_usb_table,
 312 };
 313
 314 /* module stuff */
 315 static int __init vp702x_usb_module_init(void)
 316 {
 317         int result;
 318         if ((result = usb_register(&vp702x_usb_driver))) {
 319                 err("usb_register failed. (%d)",result);
 320                 return result;
 321         }
 322
 323         return 0;
 324 }
 325
 326 static void __exit vp702x_usb_module_exit(void)
 327 {
 328         /* deregister this driver from the USB subsystem */
 329         usb_deregister(&vp702x_usb_driver);
 330 }
 331
 332 module_init(vp702x_usb_module_init);
 333 module_exit(vp702x_usb_module_exit);
 334
 335 MODULE_AUTHOR("Patrick Boettcher <patrick.boettcher@desy.de>");
 336 MODULE_DESCRIPTION("Driver for Twinhan StarBox DVB-S USB2.0 and clones");
 337 MODULE_VERSION("1.0");
 338 MODULE_LICENSE("GPL");