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Linux/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");
254 

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