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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         unsigned char data[64];
 45 };
 46 
 47 /* We are missing a release hook with usb_device data */
 48 static struct dvb_usb_device *cinergyt2_usb_device;
 49 
 50 static struct dvb_usb_device_properties cinergyt2_properties;
 51 
 52 static int cinergyt2_streaming_ctrl(struct dvb_usb_adapter *adap, int enable)
 53 {
 54         struct dvb_usb_device *d = adap->dev;
 55         struct cinergyt2_state *st = d->priv;
 56         int ret;
 57 
 58         mutex_lock(&d->data_mutex);
 59         st->data[0] = CINERGYT2_EP1_CONTROL_STREAM_TRANSFER;
 60         st->data[1] = enable ? 1 : 0;
 61 
 62         ret = dvb_usb_generic_rw(d, st->data, 2, st->data, 64, 0);
 63         mutex_unlock(&d->data_mutex);
 64 
 65         return ret;
 66 }
 67 
 68 static int cinergyt2_power_ctrl(struct dvb_usb_device *d, int enable)
 69 {
 70         struct cinergyt2_state *st = d->priv;
 71         int ret;
 72 
 73         mutex_lock(&d->data_mutex);
 74         st->data[0] = CINERGYT2_EP1_SLEEP_MODE;
 75         st->data[1] = enable ? 0 : 1;
 76 
 77         ret = dvb_usb_generic_rw(d, st->data, 2, st->data, 3, 0);
 78         mutex_unlock(&d->data_mutex);
 79 
 80         return ret;
 81 }
 82 
 83 static int cinergyt2_frontend_attach(struct dvb_usb_adapter *adap)
 84 {
 85         struct dvb_usb_device *d = adap->dev;
 86         struct cinergyt2_state *st = d->priv;
 87         int ret;
 88 
 89         adap->fe_adap[0].fe = cinergyt2_fe_attach(adap->dev);
 90 
 91         mutex_lock(&d->data_mutex);
 92         st->data[0] = CINERGYT2_EP1_GET_FIRMWARE_VERSION;
 93 
 94         ret = dvb_usb_generic_rw(d, st->data, 1, st->data, 3, 0);
 95         if (ret < 0) {
 96                 deb_rc("cinergyt2_power_ctrl() Failed to retrieve sleep "
 97                         "state info\n");
 98         }
 99         mutex_unlock(&d->data_mutex);
100 
101         /* Copy this pointer as we are gonna need it in the release phase */
102         cinergyt2_usb_device = adap->dev;
103 
104         return ret;
105 }
106 
107 static struct rc_map_table rc_map_cinergyt2_table[] = {
108         { 0x0401, KEY_POWER },
109         { 0x0402, KEY_1 },
110         { 0x0403, KEY_2 },
111         { 0x0404, KEY_3 },
112         { 0x0405, KEY_4 },
113         { 0x0406, KEY_5 },
114         { 0x0407, KEY_6 },
115         { 0x0408, KEY_7 },
116         { 0x0409, KEY_8 },
117         { 0x040a, KEY_9 },
118         { 0x040c, KEY_0 },
119         { 0x040b, KEY_VIDEO },
120         { 0x040d, KEY_REFRESH },
121         { 0x040e, KEY_SELECT },
122         { 0x040f, KEY_EPG },
123         { 0x0410, KEY_UP },
124         { 0x0414, KEY_DOWN },
125         { 0x0411, KEY_LEFT },
126         { 0x0413, KEY_RIGHT },
127         { 0x0412, KEY_OK },
128         { 0x0415, KEY_TEXT },
129         { 0x0416, KEY_INFO },
130         { 0x0417, KEY_RED },
131         { 0x0418, KEY_GREEN },
132         { 0x0419, KEY_YELLOW },
133         { 0x041a, KEY_BLUE },
134         { 0x041c, KEY_VOLUMEUP },
135         { 0x041e, KEY_VOLUMEDOWN },
136         { 0x041d, KEY_MUTE },
137         { 0x041b, KEY_CHANNELUP },
138         { 0x041f, KEY_CHANNELDOWN },
139         { 0x0440, KEY_PAUSE },
140         { 0x044c, KEY_PLAY },
141         { 0x0458, KEY_RECORD },
142         { 0x0454, KEY_PREVIOUS },
143         { 0x0448, KEY_STOP },
144         { 0x045c, KEY_NEXT }
145 };
146 
147 /* Number of keypresses to ignore before detect repeating */
148 #define RC_REPEAT_DELAY 3
149 
150 static int repeatable_keys[] = {
151         KEY_UP,
152         KEY_DOWN,
153         KEY_LEFT,
154         KEY_RIGHT,
155         KEY_VOLUMEUP,
156         KEY_VOLUMEDOWN,
157         KEY_CHANNELUP,
158         KEY_CHANNELDOWN
159 };
160 
161 static int cinergyt2_rc_query(struct dvb_usb_device *d, u32 *event, int *state)
162 {
163         struct cinergyt2_state *st = d->priv;
164         int i, ret;
165 
166         *state = REMOTE_NO_KEY_PRESSED;
167 
168         mutex_lock(&d->data_mutex);
169         st->data[0] = CINERGYT2_EP1_GET_RC_EVENTS;
170 
171         ret = dvb_usb_generic_rw(d, st->data, 1, st->data, 5, 0);
172         if (ret < 0)
173                 goto ret;
174 
175         if (st->data[4] == 0xff) {
176                 /* key repeat */
177                 st->rc_counter++;
178                 if (st->rc_counter > RC_REPEAT_DELAY) {
179                         for (i = 0; i < ARRAY_SIZE(repeatable_keys); i++) {
180                                 if (d->last_event == repeatable_keys[i]) {
181                                         *state = REMOTE_KEY_REPEAT;
182                                         *event = d->last_event;
183                                         deb_rc("repeat key, event %x\n",
184                                                    *event);
185                                         goto ret;
186                                 }
187                         }
188                         deb_rc("repeated key (non repeatable)\n");
189                 }
190                 goto ret;
191         }
192 
193         /* hack to pass checksum on the custom field */
194         st->data[2] = ~st->data[1];
195         dvb_usb_nec_rc_key_to_event(d, st->data, event, state);
196         if (st->data[0] != 0) {
197                 if (*event != d->last_event)
198                         st->rc_counter = 0;
199 
200                 deb_rc("key: %*ph\n", 5, st->data);
201         }
202 
203 ret:
204         mutex_unlock(&d->data_mutex);
205         return ret;
206 }
207 
208 static int cinergyt2_usb_probe(struct usb_interface *intf,
209                                 const struct usb_device_id *id)
210 {
211         return dvb_usb_device_init(intf, &cinergyt2_properties,
212                                    THIS_MODULE, NULL, adapter_nr);
213 }
214 
215 static struct usb_device_id cinergyt2_usb_table[] = {
216         { USB_DEVICE(USB_VID_TERRATEC, 0x0038) },
217         { 0 }
218 };
219 
220 MODULE_DEVICE_TABLE(usb, cinergyt2_usb_table);
221 
222 static struct dvb_usb_device_properties cinergyt2_properties = {
223         .size_of_priv = sizeof(struct cinergyt2_state),
224         .num_adapters = 1,
225         .adapter = {
226                 {
227                 .num_frontends = 1,
228                 .fe = {{
229                         .streaming_ctrl   = cinergyt2_streaming_ctrl,
230                         .frontend_attach  = cinergyt2_frontend_attach,
231 
232                         /* parameter for the MPEG2-data transfer */
233                         .stream = {
234                                 .type = USB_BULK,
235                                 .count = 5,
236                                 .endpoint = 0x02,
237                                 .u = {
238                                         .bulk = {
239                                                 .buffersize = 512,
240                                         }
241                                 }
242                         },
243                 }},
244                 }
245         },
246 
247         .power_ctrl       = cinergyt2_power_ctrl,
248 
249         .rc.legacy = {
250                 .rc_interval      = 50,
251                 .rc_map_table     = rc_map_cinergyt2_table,
252                 .rc_map_size      = ARRAY_SIZE(rc_map_cinergyt2_table),
253                 .rc_query         = cinergyt2_rc_query,
254         },
255 
256         .generic_bulk_ctrl_endpoint = 1,
257 
258         .num_device_descs = 1,
259         .devices = {
260                 { .name = "TerraTec/qanu USB2.0 Highspeed DVB-T Receiver",
261                   .cold_ids = {NULL},
262                   .warm_ids = { &cinergyt2_usb_table[0], NULL },
263                 },
264                 { NULL },
265         }
266 };
267 
268 
269 static struct usb_driver cinergyt2_driver = {
270         .name           = "cinergyT2",
271         .probe          = cinergyt2_usb_probe,
272         .disconnect     = dvb_usb_device_exit,
273         .id_table       = cinergyt2_usb_table
274 };
275 
276 module_usb_driver(cinergyt2_driver);
277 
278 MODULE_DESCRIPTION("Terratec Cinergy T2 DVB-T driver");
279 MODULE_LICENSE("GPL");
280 MODULE_AUTHOR("Tomi Orava");
281 

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