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