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

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3  * TerraTec Cinergy T2/qanu USB2 DVB-T adapter.
   4  *
   5  * Copyright (C) 2007 Tomi Orava (tomimo@ncircle.nullnet.fi)
   6  *
   7  * Based on the dvb-usb-framework code and the
   8  * original Terratec Cinergy T2 driver by:
   9  *
  10  * Copyright (C) 2004 Daniel Mack <daniel@qanu.de> and
  11  *                  Holger Waechtler <holger@qanu.de>
  12  *
  13  *  Protocol Spec published on http://qanu.de/specs/terratec_cinergyT2.pdf
  14  */
  15
  16 #include "cinergyT2.h"
  17
  18
  19 /* debug */
  20 int dvb_usb_cinergyt2_debug;
  21
  22 module_param_named(debug, dvb_usb_cinergyt2_debug, int, 0644);
  23 MODULE_PARM_DESC(debug, "set debugging level (1=info, xfer=2, rc=4 (or-able)).");
  24
  25 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
  26
  27 struct cinergyt2_state {
  28         u8 rc_counter;
  29         unsigned char data[64];
  30 };
  31
  32 /* Forward declaration */
  33 static const struct dvb_usb_device_properties cinergyt2_properties;
  34
  35 static int cinergyt2_streaming_ctrl(struct dvb_usb_adapter *adap, int enable)
  36 {
  37         struct dvb_usb_device *d = adap->dev;
  38         struct cinergyt2_state *st = d->priv;
  39         int ret;
  40
  41         mutex_lock(&d->data_mutex);
  42         st->data[0] = CINERGYT2_EP1_CONTROL_STREAM_TRANSFER;
  43         st->data[1] = enable ? 1 : 0;
  44
  45         ret = dvb_usb_generic_rw(d, st->data, 2, st->data, 64, 0);
  46         mutex_unlock(&d->data_mutex);
  47
  48         return ret;
  49 }
  50
  51 static int cinergyt2_power_ctrl(struct dvb_usb_device *d, int enable)
  52 {
  53         struct cinergyt2_state *st = d->priv;
  54         int ret;
  55
  56         mutex_lock(&d->data_mutex);
  57         st->data[0] = CINERGYT2_EP1_SLEEP_MODE;
  58         st->data[1] = enable ? 0 : 1;
  59
  60         ret = dvb_usb_generic_rw(d, st->data, 2, st->data, 3, 0);
  61         mutex_unlock(&d->data_mutex);
  62
  63         return ret;
  64 }
  65
  66 static int cinergyt2_frontend_attach(struct dvb_usb_adapter *adap)
  67 {
  68         struct dvb_usb_device *d = adap->dev;
  69         struct cinergyt2_state *st = d->priv;
  70         int ret;
  71
  72         adap->fe_adap[0].fe = cinergyt2_fe_attach(adap->dev);
  73
  74         mutex_lock(&d->data_mutex);
  75         st->data[0] = CINERGYT2_EP1_GET_FIRMWARE_VERSION;
  76
  77         ret = dvb_usb_generic_rw(d, st->data, 1, st->data, 3, 0);
  78         if (ret < 0) {
  79                 if (adap->fe_adap[0].fe)
  80                         adap->fe_adap[0].fe->ops.release(adap->fe_adap[0].fe);
  81                 deb_rc("cinergyt2_power_ctrl() Failed to retrieve sleep state info\n");
  82         }
  83         mutex_unlock(&d->data_mutex);
  84
  85         return ret;
  86 }
  87
  88 static struct rc_map_table rc_map_cinergyt2_table[] = {
  89         { 0x0401, KEY_POWER },
  90         { 0x0402, KEY_1 },
  91         { 0x0403, KEY_2 },
  92         { 0x0404, KEY_3 },
  93         { 0x0405, KEY_4 },
  94         { 0x0406, KEY_5 },
  95         { 0x0407, KEY_6 },
  96         { 0x0408, KEY_7 },
  97         { 0x0409, KEY_8 },
  98         { 0x040a, KEY_9 },
  99         { 0x040c, KEY_0 },
 100         { 0x040b, KEY_VIDEO },
 101         { 0x040d, KEY_REFRESH },
 102         { 0x040e, KEY_SELECT },
 103         { 0x040f, KEY_EPG },
 104         { 0x0410, KEY_UP },
 105         { 0x0414, KEY_DOWN },
 106         { 0x0411, KEY_LEFT },
 107         { 0x0413, KEY_RIGHT },
 108         { 0x0412, KEY_OK },
 109         { 0x0415, KEY_TEXT },
 110         { 0x0416, KEY_INFO },
 111         { 0x0417, KEY_RED },
 112         { 0x0418, KEY_GREEN },
 113         { 0x0419, KEY_YELLOW },
 114         { 0x041a, KEY_BLUE },
 115         { 0x041c, KEY_VOLUMEUP },
 116         { 0x041e, KEY_VOLUMEDOWN },
 117         { 0x041d, KEY_MUTE },
 118         { 0x041b, KEY_CHANNELUP },
 119         { 0x041f, KEY_CHANNELDOWN },
 120         { 0x0440, KEY_PAUSE },
 121         { 0x044c, KEY_PLAY },
 122         { 0x0458, KEY_RECORD },
 123         { 0x0454, KEY_PREVIOUS },
 124         { 0x0448, KEY_STOP },
 125         { 0x045c, KEY_NEXT }
 126 };
 127
 128 /* Number of keypresses to ignore before detect repeating */
 129 #define RC_REPEAT_DELAY 3
 130
 131 static int repeatable_keys[] = {
 132         KEY_UP,
 133         KEY_DOWN,
 134         KEY_LEFT,
 135         KEY_RIGHT,
 136         KEY_VOLUMEUP,
 137         KEY_VOLUMEDOWN,
 138         KEY_CHANNELUP,
 139         KEY_CHANNELDOWN
 140 };
 141
 142 static int cinergyt2_rc_query(struct dvb_usb_device *d, u32 *event, int *state)
 143 {
 144         struct cinergyt2_state *st = d->priv;
 145         int i, ret;
 146
 147         *state = REMOTE_NO_KEY_PRESSED;
 148
 149         mutex_lock(&d->data_mutex);
 150         st->data[0] = CINERGYT2_EP1_GET_RC_EVENTS;
 151
 152         ret = dvb_usb_generic_rw(d, st->data, 1, st->data, 5, 0);
 153         if (ret < 0)
 154                 goto ret;
 155
 156         if (st->data[4] == 0xff) {
 157                 /* key repeat */
 158                 st->rc_counter++;
 159                 if (st->rc_counter > RC_REPEAT_DELAY) {
 160                         for (i = 0; i < ARRAY_SIZE(repeatable_keys); i++) {
 161                                 if (d->last_event == repeatable_keys[i]) {
 162                                         *state = REMOTE_KEY_REPEAT;
 163                                         *event = d->last_event;
 164                                         deb_rc("repeat key, event %x\n",
 165                                                    *event);
 166                                         goto ret;
 167                                 }
 168                         }
 169                         deb_rc("repeated key (non repeatable)\n");
 170                 }
 171                 goto ret;
 172         }
 173
 174         /* hack to pass checksum on the custom field */
 175         st->data[2] = ~st->data[1];
 176         dvb_usb_nec_rc_key_to_event(d, st->data, event, state);
 177         if (st->data[0] != 0) {
 178                 if (*event != d->last_event)
 179                         st->rc_counter = 0;
 180
 181                 deb_rc("key: %*ph\n", 5, st->data);
 182         }
 183
 184 ret:
 185         mutex_unlock(&d->data_mutex);
 186         return ret;
 187 }
 188
 189 static int cinergyt2_usb_probe(struct usb_interface *intf,
 190                                 const struct usb_device_id *id)
 191 {
 192         return dvb_usb_device_init(intf, &cinergyt2_properties,
 193                                    THIS_MODULE, NULL, adapter_nr);
 194 }
 195
 196 enum {
 197         TERRATEC_CINERGY_T2,
 198 };
 199
 200 static struct usb_device_id cinergyt2_usb_table[] = {
 201         DVB_USB_DEV(TERRATEC, TERRATEC_CINERGY_T2),
 202         { }
 203 };
 204
 205 MODULE_DEVICE_TABLE(usb, cinergyt2_usb_table);
 206
 207 static const struct dvb_usb_device_properties cinergyt2_properties = {
 208         .size_of_priv = sizeof(struct cinergyt2_state),
 209         .num_adapters = 1,
 210         .adapter = {
 211                 {
 212                 .num_frontends = 1,
 213                 .fe = {{
 214                         .streaming_ctrl   = cinergyt2_streaming_ctrl,
 215                         .frontend_attach  = cinergyt2_frontend_attach,
 216
 217                         /* parameter for the MPEG2-data transfer */
 218                         .stream = {
 219                                 .type = USB_BULK,
 220                                 .count = 5,
 221                                 .endpoint = 0x02,
 222                                 .u = {
 223                                         .bulk = {
 224                                                 .buffersize = 512,
 225                                         }
 226                                 }
 227                         },
 228                 }},
 229                 }
 230         },
 231
 232         .power_ctrl       = cinergyt2_power_ctrl,
 233
 234         .rc.legacy = {
 235                 .rc_interval      = 50,
 236                 .rc_map_table     = rc_map_cinergyt2_table,
 237                 .rc_map_size      = ARRAY_SIZE(rc_map_cinergyt2_table),
 238                 .rc_query         = cinergyt2_rc_query,
 239         },
 240
 241         .generic_bulk_ctrl_endpoint = 1,
 242
 243         .num_device_descs = 1,
 244         .devices = {
 245                 { .name = "TerraTec/qanu USB2.0 Highspeed DVB-T Receiver",
 246                   .cold_ids = {NULL},
 247                   .warm_ids = { &cinergyt2_usb_table[TERRATEC_CINERGY_T2], NULL },
 248                 },
 249                 { NULL },
 250         }
 251 };
 252
 253
 254 static struct usb_driver cinergyt2_driver = {
 255         .name           = "cinergyT2",
 256         .probe          = cinergyt2_usb_probe,
 257         .disconnect     = dvb_usb_device_exit,
 258         .id_table       = cinergyt2_usb_table
 259 };
 260
 261 module_usb_driver(cinergyt2_driver);
 262
 263 MODULE_DESCRIPTION("Terratec Cinergy T2 DVB-T driver");
 264 MODULE_LICENSE("GPL");
 265 MODULE_AUTHOR("Tomi Orava");