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 (or-able)).");
  38
  39 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
  40
  41 struct cinergyt2_state {
  42         u8 rc_counter;
  43         unsigned char data[64];
  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         struct dvb_usb_device *d = adap->dev;
  54         struct cinergyt2_state *st = d->priv;
  55         int ret;
  56
  57         mutex_lock(&d->data_mutex);
  58         st->data[0] = CINERGYT2_EP1_CONTROL_STREAM_TRANSFER;
  59         st->data[1] = enable ? 1 : 0;
  60
  61         ret = dvb_usb_generic_rw(d, st->data, 2, st->data, 64, 0);
  62         mutex_unlock(&d->data_mutex);
  63
  64         return ret;
  65 }
  66
  67 static int cinergyt2_power_ctrl(struct dvb_usb_device *d, int enable)
  68 {
  69         struct cinergyt2_state *st = d->priv;
  70         int ret;
  71
  72         mutex_lock(&d->data_mutex);
  73         st->data[0] = CINERGYT2_EP1_SLEEP_MODE;
  74         st->data[1] = enable ? 0 : 1;
  75
  76         ret = dvb_usb_generic_rw(d, st->data, 2, st->data, 3, 0);
  77         mutex_unlock(&d->data_mutex);
  78
  79         return ret;
  80 }
  81
  82 static int cinergyt2_frontend_attach(struct dvb_usb_adapter *adap)
  83 {
  84         struct dvb_usb_device *d = adap->dev;
  85         struct cinergyt2_state *st = d->priv;
  86         int ret;
  87
  88         adap->fe_adap[0].fe = cinergyt2_fe_attach(adap->dev);
  89
  90         mutex_lock(&d->data_mutex);
  91         st->data[0] = CINERGYT2_EP1_GET_FIRMWARE_VERSION;
  92
  93         ret = dvb_usb_generic_rw(d, st->data, 1, st->data, 3, 0);
  94         if (ret < 0) {
  95                 deb_rc("cinergyt2_power_ctrl() Failed to retrieve sleep state info\n");
  96         }
  97         mutex_unlock(&d->data_mutex);
  98
  99         /* Copy this pointer as we are gonna need it in the release phase */
 100         cinergyt2_usb_device = adap->dev;
 101
 102         return ret;
 103 }
 104
 105 static struct rc_map_table rc_map_cinergyt2_table[] = {
 106         { 0x0401, KEY_POWER },
 107         { 0x0402, KEY_1 },
 108         { 0x0403, KEY_2 },
 109         { 0x0404, KEY_3 },
 110         { 0x0405, KEY_4 },
 111         { 0x0406, KEY_5 },
 112         { 0x0407, KEY_6 },
 113         { 0x0408, KEY_7 },
 114         { 0x0409, KEY_8 },
 115         { 0x040a, KEY_9 },
 116         { 0x040c, KEY_0 },
 117         { 0x040b, KEY_VIDEO },
 118         { 0x040d, KEY_REFRESH },
 119         { 0x040e, KEY_SELECT },
 120         { 0x040f, KEY_EPG },
 121         { 0x0410, KEY_UP },
 122         { 0x0414, KEY_DOWN },
 123         { 0x0411, KEY_LEFT },
 124         { 0x0413, KEY_RIGHT },
 125         { 0x0412, KEY_OK },
 126         { 0x0415, KEY_TEXT },
 127         { 0x0416, KEY_INFO },
 128         { 0x0417, KEY_RED },
 129         { 0x0418, KEY_GREEN },
 130         { 0x0419, KEY_YELLOW },
 131         { 0x041a, KEY_BLUE },
 132         { 0x041c, KEY_VOLUMEUP },
 133         { 0x041e, KEY_VOLUMEDOWN },
 134         { 0x041d, KEY_MUTE },
 135         { 0x041b, KEY_CHANNELUP },
 136         { 0x041f, KEY_CHANNELDOWN },
 137         { 0x0440, KEY_PAUSE },
 138         { 0x044c, KEY_PLAY },
 139         { 0x0458, KEY_RECORD },
 140         { 0x0454, KEY_PREVIOUS },
 141         { 0x0448, KEY_STOP },
 142         { 0x045c, KEY_NEXT }
 143 };
 144
 145 /* Number of keypresses to ignore before detect repeating */
 146 #define RC_REPEAT_DELAY 3
 147
 148 static int repeatable_keys[] = {
 149         KEY_UP,
 150         KEY_DOWN,
 151         KEY_LEFT,
 152         KEY_RIGHT,
 153         KEY_VOLUMEUP,
 154         KEY_VOLUMEDOWN,
 155         KEY_CHANNELUP,
 156         KEY_CHANNELDOWN
 157 };
 158
 159 static int cinergyt2_rc_query(struct dvb_usb_device *d, u32 *event, int *state)
 160 {
 161         struct cinergyt2_state *st = d->priv;
 162         int i, ret;
 163
 164         *state = REMOTE_NO_KEY_PRESSED;
 165
 166         mutex_lock(&d->data_mutex);
 167         st->data[0] = CINERGYT2_EP1_GET_RC_EVENTS;
 168
 169         ret = dvb_usb_generic_rw(d, st->data, 1, st->data, 5, 0);
 170         if (ret < 0)
 171                 goto ret;
 172
 173         if (st->data[4] == 0xff) {
 174                 /* key repeat */
 175                 st->rc_counter++;
 176                 if (st->rc_counter > RC_REPEAT_DELAY) {
 177                         for (i = 0; i < ARRAY_SIZE(repeatable_keys); i++) {
 178                                 if (d->last_event == repeatable_keys[i]) {
 179                                         *state = REMOTE_KEY_REPEAT;
 180                                         *event = d->last_event;
 181                                         deb_rc("repeat key, event %x\n",
 182                                                    *event);
 183                                         goto ret;
 184                                 }
 185                         }
 186                         deb_rc("repeated key (non repeatable)\n");
 187                 }
 188                 goto ret;
 189         }
 190
 191         /* hack to pass checksum on the custom field */
 192         st->data[2] = ~st->data[1];
 193         dvb_usb_nec_rc_key_to_event(d, st->data, event, state);
 194         if (st->data[0] != 0) {
 195                 if (*event != d->last_event)
 196                         st->rc_counter = 0;
 197
 198                 deb_rc("key: %*ph\n", 5, st->data);
 199         }
 200
 201 ret:
 202         mutex_unlock(&d->data_mutex);
 203         return ret;
 204 }
 205
 206 static int cinergyt2_usb_probe(struct usb_interface *intf,
 207                                 const struct usb_device_id *id)
 208 {
 209         return dvb_usb_device_init(intf, &cinergyt2_properties,
 210                                    THIS_MODULE, NULL, adapter_nr);
 211 }
 212
 213 static struct usb_device_id cinergyt2_usb_table[] = {
 214         { USB_DEVICE(USB_VID_TERRATEC, 0x0038) },
 215         { 0 }
 216 };
 217
 218 MODULE_DEVICE_TABLE(usb, cinergyt2_usb_table);
 219
 220 static struct dvb_usb_device_properties cinergyt2_properties = {
 221         .size_of_priv = sizeof(struct cinergyt2_state),
 222         .num_adapters = 1,
 223         .adapter = {
 224                 {
 225                 .num_frontends = 1,
 226                 .fe = {{
 227                         .streaming_ctrl   = cinergyt2_streaming_ctrl,
 228                         .frontend_attach  = cinergyt2_frontend_attach,
 229
 230                         /* parameter for the MPEG2-data transfer */
 231                         .stream = {
 232                                 .type = USB_BULK,
 233                                 .count = 5,
 234                                 .endpoint = 0x02,
 235                                 .u = {
 236                                         .bulk = {
 237                                                 .buffersize = 512,
 238                                         }
 239                                 }
 240                         },
 241                 }},
 242                 }
 243         },
 244
 245         .power_ctrl       = cinergyt2_power_ctrl,
 246
 247         .rc.legacy = {
 248                 .rc_interval      = 50,
 249                 .rc_map_table     = rc_map_cinergyt2_table,
 250                 .rc_map_size      = ARRAY_SIZE(rc_map_cinergyt2_table),
 251                 .rc_query         = cinergyt2_rc_query,
 252         },
 253
 254         .generic_bulk_ctrl_endpoint = 1,
 255
 256         .num_device_descs = 1,
 257         .devices = {
 258                 { .name = "TerraTec/qanu USB2.0 Highspeed DVB-T Receiver",
 259                   .cold_ids = {NULL},
 260                   .warm_ids = { &cinergyt2_usb_table[0], NULL },
 261                 },
 262                 { NULL },
 263         }
 264 };
 265
 266
 267 static struct usb_driver cinergyt2_driver = {
 268         .name           = "cinergyT2",
 269         .probe          = cinergyt2_usb_probe,
 270         .disconnect     = dvb_usb_device_exit,
 271         .id_table       = cinergyt2_usb_table
 272 };
 273
 274 module_usb_driver(cinergyt2_driver);
 275
 276 MODULE_DESCRIPTION("Terratec Cinergy T2 DVB-T driver");
 277 MODULE_LICENSE("GPL");
 278 MODULE_AUTHOR("Tomi Orava");