drivers/media/usb/dvb-usb/cinergyT2-core.c

   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  */
  25
  26 #include "cinergyT2.h"
  27
  28
  29 /* debug */
  30 int dvb_usb_cinergyt2_debug;
  31
  32 module_param_named(debug, dvb_usb_cinergyt2_debug, int, 0644);
  33 MODULE_PARM_DESC(debug, "set debugging level (1=info, xfer=2, rc=4 (or-able)).");
  34
  35 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
  36
  37 struct cinergyt2_state {
  38         u8 rc_counter;
  39         unsigned char data[64];
  40 };
  41
  42 /* We are missing a release hook with usb_device data */
  43 static struct dvb_usb_device *cinergyt2_usb_device;
  44
  45 static struct dvb_usb_device_properties cinergyt2_properties;
  46
  47 static int cinergyt2_streaming_ctrl(struct dvb_usb_adapter *adap, int enable)
  48 {
  49         struct dvb_usb_device *d = adap->dev;
  50         struct cinergyt2_state *st = d->priv;
  51         int ret;
  52
  53         mutex_lock(&d->data_mutex);
  54         st->data[0] = CINERGYT2_EP1_CONTROL_STREAM_TRANSFER;
  55         st->data[1] = enable ? 1 : 0;
  56
  57         ret = dvb_usb_generic_rw(d, st->data, 2, st->data, 64, 0);
  58         mutex_unlock(&d->data_mutex);
  59
  60         return ret;
  61 }
  62
  63 static int cinergyt2_power_ctrl(struct dvb_usb_device *d, int enable)
  64 {
  65         struct cinergyt2_state *st = d->priv;
  66         int ret;
  67
  68         mutex_lock(&d->data_mutex);
  69         st->data[0] = CINERGYT2_EP1_SLEEP_MODE;
  70         st->data[1] = enable ? 0 : 1;
  71
  72         ret = dvb_usb_generic_rw(d, st->data, 2, st->data, 3, 0);
  73         mutex_unlock(&d->data_mutex);
  74
  75         return ret;
  76 }
  77
  78 static int cinergyt2_frontend_attach(struct dvb_usb_adapter *adap)
  79 {
  80         struct dvb_usb_device *d = adap->dev;
  81         struct cinergyt2_state *st = d->priv;
  82         int ret;
  83
  84         adap->fe_adap[0].fe = cinergyt2_fe_attach(adap->dev);
  85
  86         mutex_lock(&d->data_mutex);
  87         st->data[0] = CINERGYT2_EP1_GET_FIRMWARE_VERSION;
  88
  89         ret = dvb_usb_generic_rw(d, st->data, 1, st->data, 3, 0);
  90         if (ret < 0) {
  91                 deb_rc("cinergyt2_power_ctrl() Failed to retrieve sleep state info\n");
  92         }
  93         mutex_unlock(&d->data_mutex);
  94
  95         /* Copy this pointer as we are gonna need it in the release phase */
  96         cinergyt2_usb_device = adap->dev;
  97
  98         return ret;
  99 }
 100
 101 static struct rc_map_table rc_map_cinergyt2_table[] = {
 102         { 0x0401, KEY_POWER },
 103         { 0x0402, KEY_1 },
 104         { 0x0403, KEY_2 },
 105         { 0x0404, KEY_3 },
 106         { 0x0405, KEY_4 },
 107         { 0x0406, KEY_5 },
 108         { 0x0407, KEY_6 },
 109         { 0x0408, KEY_7 },
 110         { 0x0409, KEY_8 },
 111         { 0x040a, KEY_9 },
 112         { 0x040c, KEY_0 },
 113         { 0x040b, KEY_VIDEO },
 114         { 0x040d, KEY_REFRESH },
 115         { 0x040e, KEY_SELECT },
 116         { 0x040f, KEY_EPG },
 117         { 0x0410, KEY_UP },
 118         { 0x0414, KEY_DOWN },
 119         { 0x0411, KEY_LEFT },
 120         { 0x0413, KEY_RIGHT },
 121         { 0x0412, KEY_OK },
 122         { 0x0415, KEY_TEXT },
 123         { 0x0416, KEY_INFO },
 124         { 0x0417, KEY_RED },
 125         { 0x0418, KEY_GREEN },
 126         { 0x0419, KEY_YELLOW },
 127         { 0x041a, KEY_BLUE },
 128         { 0x041c, KEY_VOLUMEUP },
 129         { 0x041e, KEY_VOLUMEDOWN },
 130         { 0x041d, KEY_MUTE },
 131         { 0x041b, KEY_CHANNELUP },
 132         { 0x041f, KEY_CHANNELDOWN },
 133         { 0x0440, KEY_PAUSE },
 134         { 0x044c, KEY_PLAY },
 135         { 0x0458, KEY_RECORD },
 136         { 0x0454, KEY_PREVIOUS },
 137         { 0x0448, KEY_STOP },
 138         { 0x045c, KEY_NEXT }
 139 };
 140
 141 /* Number of keypresses to ignore before detect repeating */
 142 #define RC_REPEAT_DELAY 3
 143
 144 static int repeatable_keys[] = {
 145         KEY_UP,
 146         KEY_DOWN,
 147         KEY_LEFT,
 148         KEY_RIGHT,
 149         KEY_VOLUMEUP,
 150         KEY_VOLUMEDOWN,
 151         KEY_CHANNELUP,
 152         KEY_CHANNELDOWN
 153 };
 154
 155 static int cinergyt2_rc_query(struct dvb_usb_device *d, u32 *event, int *state)
 156 {
 157         struct cinergyt2_state *st = d->priv;
 158         int i, ret;
 159
 160         *state = REMOTE_NO_KEY_PRESSED;
 161
 162         mutex_lock(&d->data_mutex);
 163         st->data[0] = CINERGYT2_EP1_GET_RC_EVENTS;
 164
 165         ret = dvb_usb_generic_rw(d, st->data, 1, st->data, 5, 0);
 166         if (ret < 0)
 167                 goto ret;
 168
 169         if (st->data[4] == 0xff) {
 170                 /* key repeat */
 171                 st->rc_counter++;
 172                 if (st->rc_counter > RC_REPEAT_DELAY) {
 173                         for (i = 0; i < ARRAY_SIZE(repeatable_keys); i++) {
 174                                 if (d->last_event == repeatable_keys[i]) {
 175                                         *state = REMOTE_KEY_REPEAT;
 176                                         *event = d->last_event;
 177                                         deb_rc("repeat key, event %x\n",
 178                                                    *event);
 179                                         goto ret;
 180                                 }
 181                         }
 182                         deb_rc("repeated key (non repeatable)\n");
 183                 }
 184                 goto ret;
 185         }
 186
 187         /* hack to pass checksum on the custom field */
 188         st->data[2] = ~st->data[1];
 189         dvb_usb_nec_rc_key_to_event(d, st->data, event, state);
 190         if (st->data[0] != 0) {
 191                 if (*event != d->last_event)
 192                         st->rc_counter = 0;
 193
 194                 deb_rc("key: %*ph\n", 5, st->data);
 195         }
 196
 197 ret:
 198         mutex_unlock(&d->data_mutex);
 199         return ret;
 200 }
 201
 202 static int cinergyt2_usb_probe(struct usb_interface *intf,
 203                                 const struct usb_device_id *id)
 204 {
 205         return dvb_usb_device_init(intf, &cinergyt2_properties,
 206                                    THIS_MODULE, NULL, adapter_nr);
 207 }
 208
 209 static struct usb_device_id cinergyt2_usb_table[] = {
 210         { USB_DEVICE(USB_VID_TERRATEC, 0x0038) },
 211         { 0 }
 212 };
 213
 214 MODULE_DEVICE_TABLE(usb, cinergyt2_usb_table);
 215
 216 static struct dvb_usb_device_properties cinergyt2_properties = {
 217         .size_of_priv = sizeof(struct cinergyt2_state),
 218         .num_adapters = 1,
 219         .adapter = {
 220                 {
 221                 .num_frontends = 1,
 222                 .fe = {{
 223                         .streaming_ctrl   = cinergyt2_streaming_ctrl,
 224                         .frontend_attach  = cinergyt2_frontend_attach,
 225
 226                         /* parameter for the MPEG2-data transfer */
 227                         .stream = {
 228                                 .type = USB_BULK,
 229                                 .count = 5,
 230                                 .endpoint = 0x02,
 231                                 .u = {
 232                                         .bulk = {
 233                                                 .buffersize = 512,
 234                                         }
 235                                 }
 236                         },
 237                 }},
 238                 }
 239         },
 240
 241         .power_ctrl       = cinergyt2_power_ctrl,
 242
 243         .rc.legacy = {
 244                 .rc_interval      = 50,
 245                 .rc_map_table     = rc_map_cinergyt2_table,
 246                 .rc_map_size      = ARRAY_SIZE(rc_map_cinergyt2_table),
 247                 .rc_query         = cinergyt2_rc_query,
 248         },
 249
 250         .generic_bulk_ctrl_endpoint = 1,
 251
 252         .num_device_descs = 1,
 253         .devices = {
 254                 { .name = "TerraTec/qanu USB2.0 Highspeed DVB-T Receiver",
 255                   .cold_ids = {NULL},
 256                   .warm_ids = { &cinergyt2_usb_table[0], NULL },
 257                 },
 258                 { NULL },
 259         }
 260 };
 261
 262
 263 static struct usb_driver cinergyt2_driver = {
 264         .name           = "cinergyT2",
 265         .probe          = cinergyt2_usb_probe,
 266         .disconnect     = dvb_usb_device_exit,
 267         .id_table       = cinergyt2_usb_table
 268 };
 269
 270 module_usb_driver(cinergyt2_driver);
 271
 272 MODULE_DESCRIPTION("Terratec Cinergy T2 DVB-T driver");
 273 MODULE_LICENSE("GPL");
 274 MODULE_AUTHOR("Tomi Orava");