kernel/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  * 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 */
  34 int dvb_usb_cinergyt2_debug;
  35
  36 module_param_named(debug, dvb_usb_cinergyt2_debug, int, 0644);
  37 MODULE_PARM_DESC(debug, "set debugging level (1=info, xfer=2, rc=4 "
  38                 "(or-able)).");
  39
  40 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
  41
  42 struct cinergyt2_state {
  43         u8 rc_counter;
  44 };
  45
  46 /* We are missing a release hook with usb_device data */
  47 static struct dvb_usb_device *cinergyt2_usb_device;
  48
  49 static struct dvb_usb_device_properties cinergyt2_properties;
  50
  51 static 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
  59 static 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
  66 static 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
  87 static 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
 130 static 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
 141 static 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
 180 static 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
 188 static struct usb_device_id cinergyt2_usb_table[] = {
 189         { USB_DEVICE(USB_VID_TERRATEC, 0x0038) },
 190         { 0 }
 191 };
 192
 193 MODULE_DEVICE_TABLE(usb, cinergyt2_usb_table);
 194
 195 static 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
 242 static 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
 249 module_usb_driver(cinergyt2_driver);
 250
 251 MODULE_DESCRIPTION("Terratec Cinergy T2 DVB-T driver");
 252 MODULE_LICENSE("GPL");
 253 MODULE_AUTHOR("Tomi Orava");