linux/drivers/media/dvb/dvb-usb/vp702x.c
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   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 */
  20int dvb_usb_vp702x_debug;
  21module_param_named(debug,dvb_usb_vp702x_debug, int, 0644);
  22MODULE_PARM_DESC(debug, "set debugging level (1=info,xfer=2,rc=4 (or-able))." DVB_USB_DEBUG_STATUS);
  23
  24DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
  25
  26struct vp702x_state {
  27        int pid_filter_count;
  28        int pid_filter_can_bypass;
  29        u8  pid_filter_state;
  30};
  31
  32struct vp702x_device_state {
  33        u8 power_state;
  34};
  35
  36/* check for mutex FIXME */
  37int 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
  61static 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
  80int 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
  96static 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
 115static 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
 121static 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
 127static 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
 148static 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
 171static int vp702x_streaming_ctrl(struct dvb_usb_adapter *adap, int onoff)
 172{
 173        return 0;
 174}
 175
 176/* keys for the enclosed remote control */
 177static struct dvb_usb_rc_key vp702x_rc_keys[] = {
 178        { 0x0001, KEY_1 },
 179        { 0x0002, KEY_2 },
 180};
 181
 182/* remote control stuff (does not work with my box) */
 183static 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 (rc5_custom(&vp702x_rc_keys[i]) == key[1]) {
 202                        *state = REMOTE_KEY_PRESSED;
 203                        *event = vp702x_rc_keys[i].event;
 204                        break;
 205                }
 206        return 0;
 207}
 208
 209
 210static 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
 218static 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
 238static struct dvb_usb_device_properties vp702x_properties;
 239
 240static 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
 247static 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};
 253MODULE_DEVICE_TABLE(usb, vp702x_usb_table);
 254
 255static 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 */
 306static 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 */
 314static 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
 325static void __exit vp702x_usb_module_exit(void)
 326{
 327        /* deregister this driver from the USB subsystem */
 328        usb_deregister(&vp702x_usb_driver);
 329}
 330
 331module_init(vp702x_usb_module_init);
 332module_exit(vp702x_usb_module_exit);
 333
 334MODULE_AUTHOR("Patrick Boettcher <patrick.boettcher@desy.de>");
 335MODULE_DESCRIPTION("Driver for Twinhan StarBox DVB-S USB2.0 and clones");
 336MODULE_VERSION("1.0");
 337MODULE_LICENSE("GPL");
 338