linux/drivers/media/usb/dvb-usb/cinergyT2-core.c
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   1/*
   2 * TerraTec Cinergy T2/qanu USB2 DVB-T adapter.
   3 *
   4 * Copyright (C) 2007 Tomi Orava (tomimo@ncircle.nullnet.fi)
   5 *
   6 * Based on the dvb-usb-framework code and the
   7 * original Terratec Cinergy T2 driver by:
   8 *
   9 * Copyright (C) 2004 Daniel Mack <daniel@qanu.de> and
  10 *                  Holger Waechtler <holger@qanu.de>
  11 *
  12 *  Protocol Spec published on http://qanu.de/specs/terratec_cinergyT2.pdf
  13 *
  14 * This program is free software; you can redistribute it and/or modify
  15 * it under the terms of the GNU General Public License as published by
  16 * the Free Software Foundation; either version 2 of the License, or
  17 * (at your option) any later version.
  18 *
  19 * This program is distributed in the hope that it will be useful,
  20 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  21 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  22 * GNU General Public License for more details.
  23 *
  24 * You should have received a copy of the GNU General Public License
  25 * along with this program; if not, write to the Free Software
  26 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  27 *
  28 */
  29
  30#include "cinergyT2.h"
  31
  32
  33/* debug */
  34int dvb_usb_cinergyt2_debug;
  35
  36module_param_named(debug, dvb_usb_cinergyt2_debug, int, 0644);
  37MODULE_PARM_DESC(debug, "set debugging level (1=info, xfer=2, rc=4 "
  38                "(or-able)).");
  39
  40DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
  41
  42struct cinergyt2_state {
  43        u8 rc_counter;
  44};
  45
  46/* We are missing a release hook with usb_device data */
  47static struct dvb_usb_device *cinergyt2_usb_device;
  48
  49static struct dvb_usb_device_properties cinergyt2_properties;
  50
  51static int cinergyt2_streaming_ctrl(struct dvb_usb_adapter *adap, int enable)
  52{
  53        char buf[] = { CINERGYT2_EP1_CONTROL_STREAM_TRANSFER, enable ? 1 : 0 };
  54        char result[64];
  55        return dvb_usb_generic_rw(adap->dev, buf, sizeof(buf), result,
  56                                sizeof(result), 0);
  57}
  58
  59static int cinergyt2_power_ctrl(struct dvb_usb_device *d, int enable)
  60{
  61        char buf[] = { CINERGYT2_EP1_SLEEP_MODE, enable ? 0 : 1 };
  62        char state[3];
  63        return dvb_usb_generic_rw(d, buf, sizeof(buf), state, sizeof(state), 0);
  64}
  65
  66static int cinergyt2_frontend_attach(struct dvb_usb_adapter *adap)
  67{
  68        char query[] = { CINERGYT2_EP1_GET_FIRMWARE_VERSION };
  69        char state[3];
  70        int ret;
  71
  72        adap->fe_adap[0].fe = cinergyt2_fe_attach(adap->dev);
  73
  74        ret = dvb_usb_generic_rw(adap->dev, query, sizeof(query), state,
  75                                sizeof(state), 0);
  76        if (ret < 0) {
  77                deb_rc("cinergyt2_power_ctrl() Failed to retrieve sleep "
  78                        "state info\n");
  79        }
  80
  81        /* Copy this pointer as we are gonna need it in the release phase */
  82        cinergyt2_usb_device = adap->dev;
  83
  84        return 0;
  85}
  86
  87static struct rc_map_table rc_map_cinergyt2_table[] = {
  88        { 0x0401, KEY_POWER },
  89        { 0x0402, KEY_1 },
  90        { 0x0403, KEY_2 },
  91        { 0x0404, KEY_3 },
  92        { 0x0405, KEY_4 },
  93        { 0x0406, KEY_5 },
  94        { 0x0407, KEY_6 },
  95        { 0x0408, KEY_7 },
  96        { 0x0409, KEY_8 },
  97        { 0x040a, KEY_9 },
  98        { 0x040c, KEY_0 },
  99        { 0x040b, KEY_VIDEO },
 100        { 0x040d, KEY_REFRESH },
 101        { 0x040e, KEY_SELECT },
 102        { 0x040f, KEY_EPG },
 103        { 0x0410, KEY_UP },
 104        { 0x0414, KEY_DOWN },
 105        { 0x0411, KEY_LEFT },
 106        { 0x0413, KEY_RIGHT },
 107        { 0x0412, KEY_OK },
 108        { 0x0415, KEY_TEXT },
 109        { 0x0416, KEY_INFO },
 110        { 0x0417, KEY_RED },
 111        { 0x0418, KEY_GREEN },
 112        { 0x0419, KEY_YELLOW },
 113        { 0x041a, KEY_BLUE },
 114        { 0x041c, KEY_VOLUMEUP },
 115        { 0x041e, KEY_VOLUMEDOWN },
 116        { 0x041d, KEY_MUTE },
 117        { 0x041b, KEY_CHANNELUP },
 118        { 0x041f, KEY_CHANNELDOWN },
 119        { 0x0440, KEY_PAUSE },
 120        { 0x044c, KEY_PLAY },
 121        { 0x0458, KEY_RECORD },
 122        { 0x0454, KEY_PREVIOUS },
 123        { 0x0448, KEY_STOP },
 124        { 0x045c, KEY_NEXT }
 125};
 126
 127/* Number of keypresses to ignore before detect repeating */
 128#define RC_REPEAT_DELAY 3
 129
 130static int repeatable_keys[] = {
 131        KEY_UP,
 132        KEY_DOWN,
 133        KEY_LEFT,
 134        KEY_RIGHT,
 135        KEY_VOLUMEUP,
 136        KEY_VOLUMEDOWN,
 137        KEY_CHANNELUP,
 138        KEY_CHANNELDOWN
 139};
 140
 141static int cinergyt2_rc_query(struct dvb_usb_device *d, u32 *event, int *state)
 142{
 143        struct cinergyt2_state *st = d->priv;
 144        u8 key[5] = {0, 0, 0, 0, 0}, cmd = CINERGYT2_EP1_GET_RC_EVENTS;
 145        int i;
 146
 147        *state = REMOTE_NO_KEY_PRESSED;
 148
 149        dvb_usb_generic_rw(d, &cmd, 1, key, sizeof(key), 0);
 150        if (key[4] == 0xff) {
 151                /* key repeat */
 152                st->rc_counter++;
 153                if (st->rc_counter > RC_REPEAT_DELAY) {
 154                        for (i = 0; i < ARRAY_SIZE(repeatable_keys); i++) {
 155                                if (d->last_event == repeatable_keys[i]) {
 156                                        *state = REMOTE_KEY_REPEAT;
 157                                        *event = d->last_event;
 158                                        deb_rc("repeat key, event %x\n",
 159                                                   *event);
 160                                        return 0;
 161                                }
 162                        }
 163                        deb_rc("repeated key (non repeatable)\n");
 164                }
 165                return 0;
 166        }
 167
 168        /* hack to pass checksum on the custom field */
 169        key[2] = ~key[1];
 170        dvb_usb_nec_rc_key_to_event(d, key, event, state);
 171        if (key[0] != 0) {
 172                if (*event != d->last_event)
 173                        st->rc_counter = 0;
 174
 175                deb_rc("key: %*ph\n", 5, key);
 176        }
 177        return 0;
 178}
 179
 180static int cinergyt2_usb_probe(struct usb_interface *intf,
 181                                const struct usb_device_id *id)
 182{
 183        return dvb_usb_device_init(intf, &cinergyt2_properties,
 184                                        THIS_MODULE, NULL, adapter_nr);
 185}
 186
 187
 188static struct usb_device_id cinergyt2_usb_table[] = {
 189        { USB_DEVICE(USB_VID_TERRATEC, 0x0038) },
 190        { 0 }
 191};
 192
 193MODULE_DEVICE_TABLE(usb, cinergyt2_usb_table);
 194
 195static struct dvb_usb_device_properties cinergyt2_properties = {
 196        .size_of_priv = sizeof(struct cinergyt2_state),
 197        .num_adapters = 1,
 198        .adapter = {
 199                {
 200                .num_frontends = 1,
 201                .fe = {{
 202                        .streaming_ctrl   = cinergyt2_streaming_ctrl,
 203                        .frontend_attach  = cinergyt2_frontend_attach,
 204
 205                        /* parameter for the MPEG2-data transfer */
 206                        .stream = {
 207                                .type = USB_BULK,
 208                                .count = 5,
 209                                .endpoint = 0x02,
 210                                .u = {
 211                                        .bulk = {
 212                                                .buffersize = 512,
 213                                        }
 214                                }
 215                        },
 216                }},
 217                }
 218        },
 219
 220        .power_ctrl       = cinergyt2_power_ctrl,
 221
 222        .rc.legacy = {
 223                .rc_interval      = 50,
 224                .rc_map_table     = rc_map_cinergyt2_table,
 225                .rc_map_size      = ARRAY_SIZE(rc_map_cinergyt2_table),
 226                .rc_query         = cinergyt2_rc_query,
 227        },
 228
 229        .generic_bulk_ctrl_endpoint = 1,
 230
 231        .num_device_descs = 1,
 232        .devices = {
 233                { .name = "TerraTec/qanu USB2.0 Highspeed DVB-T Receiver",
 234                  .cold_ids = {NULL},
 235                  .warm_ids = { &cinergyt2_usb_table[0], NULL },
 236                },
 237                { NULL },
 238        }
 239};
 240
 241
 242static struct usb_driver cinergyt2_driver = {
 243        .name           = "cinergyT2",
 244        .probe          = cinergyt2_usb_probe,
 245        .disconnect     = dvb_usb_device_exit,
 246        .id_table       = cinergyt2_usb_table
 247};
 248
 249module_usb_driver(cinergyt2_driver);
 250
 251MODULE_DESCRIPTION("Terratec Cinergy T2 DVB-T driver");
 252MODULE_LICENSE("GPL");
 253MODULE_AUTHOR("Tomi Orava");
 254