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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 (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");
279 

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