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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /drivers/media/video/ir-kbd-gpio.c
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'drivers/media/video/ir-kbd-gpio.c')
-rw-r--r--drivers/media/video/ir-kbd-gpio.c444
1 files changed, 444 insertions, 0 deletions
diff --git a/drivers/media/video/ir-kbd-gpio.c b/drivers/media/video/ir-kbd-gpio.c
new file mode 100644
index 000000000000..ab6620de4b3b
--- /dev/null
+++ b/drivers/media/video/ir-kbd-gpio.c
@@ -0,0 +1,444 @@
1/*
2 * $Id: ir-kbd-gpio.c,v 1.12 2005/02/22 12:28:40 kraxel Exp $
3 *
4 * Copyright (c) 2003 Gerd Knorr
5 * Copyright (c) 2003 Pavel Machek
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 */
21
22#include <linux/module.h>
23#include <linux/moduleparam.h>
24#include <linux/init.h>
25#include <linux/delay.h>
26#include <linux/interrupt.h>
27#include <linux/input.h>
28#include <linux/pci.h>
29
30#include <media/ir-common.h>
31
32#include "bttv.h"
33
34/* ---------------------------------------------------------------------- */
35
36static IR_KEYTAB_TYPE ir_codes_avermedia[IR_KEYTAB_SIZE] = {
37 [ 34 ] = KEY_KP0,
38 [ 40 ] = KEY_KP1,
39 [ 24 ] = KEY_KP2,
40 [ 56 ] = KEY_KP3,
41 [ 36 ] = KEY_KP4,
42 [ 20 ] = KEY_KP5,
43 [ 52 ] = KEY_KP6,
44 [ 44 ] = KEY_KP7,
45 [ 28 ] = KEY_KP8,
46 [ 60 ] = KEY_KP9,
47
48 [ 48 ] = KEY_EJECTCD, // Unmarked on my controller
49 [ 0 ] = KEY_POWER,
50 [ 18 ] = BTN_LEFT, // DISPLAY/L
51 [ 50 ] = BTN_RIGHT, // LOOP/R
52 [ 10 ] = KEY_MUTE,
53 [ 38 ] = KEY_RECORD,
54 [ 22 ] = KEY_PAUSE,
55 [ 54 ] = KEY_STOP,
56 [ 30 ] = KEY_VOLUMEDOWN,
57 [ 62 ] = KEY_VOLUMEUP,
58
59 [ 32 ] = KEY_TUNER, // TV/FM
60 [ 16 ] = KEY_CD,
61 [ 8 ] = KEY_VIDEO,
62 [ 4 ] = KEY_AUDIO,
63 [ 12 ] = KEY_ZOOM, // full screen
64 [ 2 ] = KEY_INFO, // preview
65 [ 42 ] = KEY_SEARCH, // autoscan
66 [ 26 ] = KEY_STOP, // freeze
67 [ 58 ] = KEY_RECORD, // capture
68 [ 6 ] = KEY_PLAY, // unmarked
69 [ 46 ] = KEY_RED, // unmarked
70 [ 14 ] = KEY_GREEN, // unmarked
71
72 [ 33 ] = KEY_YELLOW, // unmarked
73 [ 17 ] = KEY_CHANNELDOWN,
74 [ 49 ] = KEY_CHANNELUP,
75 [ 1 ] = KEY_BLUE, // unmarked
76};
77
78/* Matt Jesson <dvb@jesson.eclipse.co.uk */
79static IR_KEYTAB_TYPE ir_codes_avermedia_dvbt[IR_KEYTAB_SIZE] = {
80 [ 0x28 ] = KEY_KP0, //'0' / 'enter'
81 [ 0x22 ] = KEY_KP1, //'1'
82 [ 0x12 ] = KEY_KP2, //'2' / 'up arrow'
83 [ 0x32 ] = KEY_KP3, //'3'
84 [ 0x24 ] = KEY_KP4, //'4' / 'left arrow'
85 [ 0x14 ] = KEY_KP5, //'5'
86 [ 0x34 ] = KEY_KP6, //'6' / 'right arrow'
87 [ 0x26 ] = KEY_KP7, //'7'
88 [ 0x16 ] = KEY_KP8, //'8' / 'down arrow'
89 [ 0x36 ] = KEY_KP9, //'9'
90
91 [ 0x20 ] = KEY_LIST, // 'source'
92 [ 0x10 ] = KEY_TEXT, // 'teletext'
93 [ 0x00 ] = KEY_POWER, // 'power'
94 [ 0x04 ] = KEY_AUDIO, // 'audio'
95 [ 0x06 ] = KEY_ZOOM, // 'full screen'
96 [ 0x18 ] = KEY_VIDEO, // 'display'
97 [ 0x38 ] = KEY_SEARCH, // 'loop'
98 [ 0x08 ] = KEY_INFO, // 'preview'
99 [ 0x2a ] = KEY_REWIND, // 'backward <<'
100 [ 0x1a ] = KEY_FASTFORWARD, // 'forward >>'
101 [ 0x3a ] = KEY_RECORD, // 'capture'
102 [ 0x0a ] = KEY_MUTE, // 'mute'
103 [ 0x2c ] = KEY_RECORD, // 'record'
104 [ 0x1c ] = KEY_PAUSE, // 'pause'
105 [ 0x3c ] = KEY_STOP, // 'stop'
106 [ 0x0c ] = KEY_PLAY, // 'play'
107 [ 0x2e ] = KEY_RED, // 'red'
108 [ 0x01 ] = KEY_BLUE, // 'blue' / 'cancel'
109 [ 0x0e ] = KEY_YELLOW, // 'yellow' / 'ok'
110 [ 0x21 ] = KEY_GREEN, // 'green'
111 [ 0x11 ] = KEY_CHANNELDOWN, // 'channel -'
112 [ 0x31 ] = KEY_CHANNELUP, // 'channel +'
113 [ 0x1e ] = KEY_VOLUMEDOWN, // 'volume -'
114 [ 0x3e ] = KEY_VOLUMEUP, // 'volume +'
115};
116
117static IR_KEYTAB_TYPE ir_codes_pixelview[IR_KEYTAB_SIZE] = {
118 [ 2 ] = KEY_KP0,
119 [ 1 ] = KEY_KP1,
120 [ 11 ] = KEY_KP2,
121 [ 27 ] = KEY_KP3,
122 [ 5 ] = KEY_KP4,
123 [ 9 ] = KEY_KP5,
124 [ 21 ] = KEY_KP6,
125 [ 6 ] = KEY_KP7,
126 [ 10 ] = KEY_KP8,
127 [ 18 ] = KEY_KP9,
128
129 [ 3 ] = KEY_TUNER, // TV/FM
130 [ 7 ] = KEY_SEARCH, // scan
131 [ 28 ] = KEY_ZOOM, // full screen
132 [ 30 ] = KEY_POWER,
133 [ 23 ] = KEY_VOLUMEDOWN,
134 [ 31 ] = KEY_VOLUMEUP,
135 [ 20 ] = KEY_CHANNELDOWN,
136 [ 22 ] = KEY_CHANNELUP,
137 [ 24 ] = KEY_MUTE,
138
139 [ 0 ] = KEY_LIST, // source
140 [ 19 ] = KEY_INFO, // loop
141 [ 16 ] = KEY_LAST, // +100
142 [ 13 ] = KEY_CLEAR, // reset
143 [ 12 ] = BTN_RIGHT, // fun++
144 [ 4 ] = BTN_LEFT, // fun--
145 [ 14 ] = KEY_GOTO, // function
146 [ 15 ] = KEY_STOP, // freeze
147};
148
149/* Attila Kondoros <attila.kondoros@chello.hu> */
150static IR_KEYTAB_TYPE ir_codes_apac_viewcomp[IR_KEYTAB_SIZE] = {
151
152 [ 1 ] = KEY_KP1,
153 [ 2 ] = KEY_KP2,
154 [ 3 ] = KEY_KP3,
155 [ 4 ] = KEY_KP4,
156 [ 5 ] = KEY_KP5,
157 [ 6 ] = KEY_KP6,
158 [ 7 ] = KEY_KP7,
159 [ 8 ] = KEY_KP8,
160 [ 9 ] = KEY_KP9,
161 [ 0 ] = KEY_KP0,
162 [ 23 ] = KEY_LAST, // +100
163 [ 10 ] = KEY_LIST, // recall
164
165
166 [ 28 ] = KEY_TUNER, // TV/FM
167 [ 21 ] = KEY_SEARCH, // scan
168 [ 18 ] = KEY_POWER, // power
169 [ 31 ] = KEY_VOLUMEDOWN, // vol up
170 [ 27 ] = KEY_VOLUMEUP, // vol down
171 [ 30 ] = KEY_CHANNELDOWN, // chn up
172 [ 26 ] = KEY_CHANNELUP, // chn down
173
174 [ 17 ] = KEY_VIDEO, // video
175 [ 15 ] = KEY_ZOOM, // full screen
176 [ 19 ] = KEY_MUTE, // mute/unmute
177 [ 16 ] = KEY_TEXT, // min
178
179 [ 13 ] = KEY_STOP, // freeze
180 [ 14 ] = KEY_RECORD, // record
181 [ 29 ] = KEY_PLAYPAUSE, // stop
182 [ 25 ] = KEY_PLAY, // play
183
184 [ 22 ] = KEY_GOTO, // osd
185 [ 20 ] = KEY_REFRESH, // default
186 [ 12 ] = KEY_KPPLUS, // fine tune >>>>
187 [ 24 ] = KEY_KPMINUS // fine tune <<<<
188};
189
190/* ---------------------------------------------------------------------- */
191
192struct IR {
193 struct bttv_sub_device *sub;
194 struct input_dev input;
195 struct ir_input_state ir;
196 char name[32];
197 char phys[32];
198 u32 mask_keycode;
199 u32 mask_keydown;
200 u32 mask_keyup;
201
202 int polling;
203 u32 last_gpio;
204 struct work_struct work;
205 struct timer_list timer;
206};
207
208static int debug;
209module_param(debug, int, 0644); /* debug level (0,1,2) */
210
211#define DEVNAME "ir-kbd-gpio"
212#define dprintk(fmt, arg...) if (debug) \
213 printk(KERN_DEBUG DEVNAME ": " fmt , ## arg)
214
215static void ir_irq(struct bttv_sub_device *sub);
216static int ir_probe(struct device *dev);
217static int ir_remove(struct device *dev);
218
219static struct bttv_sub_driver driver = {
220 .drv = {
221 .name = DEVNAME,
222 .probe = ir_probe,
223 .remove = ir_remove,
224 },
225 .gpio_irq = ir_irq,
226};
227
228/* ---------------------------------------------------------------------- */
229
230static void ir_handle_key(struct IR *ir)
231{
232 u32 gpio,data;
233
234 /* read gpio value */
235 gpio = bttv_gpio_read(ir->sub->core);
236 if (ir->polling) {
237 if (ir->last_gpio == gpio)
238 return;
239 ir->last_gpio = gpio;
240 }
241
242 /* extract data */
243 data = ir_extract_bits(gpio, ir->mask_keycode);
244 dprintk(DEVNAME ": irq gpio=0x%x code=%d | %s%s%s\n",
245 gpio, data,
246 ir->polling ? "poll" : "irq",
247 (gpio & ir->mask_keydown) ? " down" : "",
248 (gpio & ir->mask_keyup) ? " up" : "");
249
250 if (ir->mask_keydown) {
251 /* bit set on keydown */
252 if (gpio & ir->mask_keydown) {
253 ir_input_keydown(&ir->input,&ir->ir,data,data);
254 } else {
255 ir_input_nokey(&ir->input,&ir->ir);
256 }
257
258 } else if (ir->mask_keyup) {
259 /* bit cleared on keydown */
260 if (0 == (gpio & ir->mask_keyup)) {
261 ir_input_keydown(&ir->input,&ir->ir,data,data);
262 } else {
263 ir_input_nokey(&ir->input,&ir->ir);
264 }
265
266 } else {
267 /* can't disturgissh keydown/up :-/ */
268 ir_input_keydown(&ir->input,&ir->ir,data,data);
269 ir_input_nokey(&ir->input,&ir->ir);
270 }
271}
272
273static void ir_irq(struct bttv_sub_device *sub)
274{
275 struct IR *ir = dev_get_drvdata(&sub->dev);
276
277 if (!ir->polling)
278 ir_handle_key(ir);
279}
280
281static void ir_timer(unsigned long data)
282{
283 struct IR *ir = (struct IR*)data;
284
285 schedule_work(&ir->work);
286}
287
288static void ir_work(void *data)
289{
290 struct IR *ir = data;
291 unsigned long timeout;
292
293 ir_handle_key(ir);
294 timeout = jiffies + (ir->polling * HZ / 1000);
295 mod_timer(&ir->timer, timeout);
296}
297
298/* ---------------------------------------------------------------------- */
299
300static int ir_probe(struct device *dev)
301{
302 struct bttv_sub_device *sub = to_bttv_sub_dev(dev);
303 struct IR *ir;
304 IR_KEYTAB_TYPE *ir_codes = NULL;
305 int ir_type = IR_TYPE_OTHER;
306
307 ir = kmalloc(sizeof(*ir),GFP_KERNEL);
308 if (NULL == ir)
309 return -ENOMEM;
310 memset(ir,0,sizeof(*ir));
311
312 /* detect & configure */
313 switch (sub->core->type) {
314 case BTTV_AVERMEDIA:
315 case BTTV_AVPHONE98:
316 case BTTV_AVERMEDIA98:
317 ir_codes = ir_codes_avermedia;
318 ir->mask_keycode = 0xf88000;
319 ir->mask_keydown = 0x010000;
320 ir->polling = 50; // ms
321 break;
322
323 case BTTV_AVDVBT_761:
324 case BTTV_AVDVBT_771:
325 ir_codes = ir_codes_avermedia_dvbt;
326 ir->mask_keycode = 0x0f00c0;
327 ir->mask_keydown = 0x000020;
328 ir->polling = 50; // ms
329 break;
330
331 case BTTV_PXELVWPLTVPAK:
332 ir_codes = ir_codes_pixelview;
333 ir->mask_keycode = 0x003e00;
334 ir->mask_keyup = 0x010000;
335 ir->polling = 50; // ms
336 break;
337 case BTTV_PV_BT878P_9B:
338 case BTTV_PV_BT878P_PLUS:
339 ir_codes = ir_codes_pixelview;
340 ir->mask_keycode = 0x001f00;
341 ir->mask_keyup = 0x008000;
342 ir->polling = 50; // ms
343 break;
344
345 case BTTV_WINFAST2000:
346 ir_codes = ir_codes_winfast;
347 ir->mask_keycode = 0x1f8;
348 break;
349 case BTTV_MAGICTVIEW061:
350 case BTTV_MAGICTVIEW063:
351 ir_codes = ir_codes_winfast;
352 ir->mask_keycode = 0x0008e000;
353 ir->mask_keydown = 0x00200000;
354 break;
355 case BTTV_APAC_VIEWCOMP:
356 ir_codes = ir_codes_apac_viewcomp;
357 ir->mask_keycode = 0x001f00;
358 ir->mask_keyup = 0x008000;
359 ir->polling = 50; // ms
360 break;
361 }
362 if (NULL == ir_codes) {
363 kfree(ir);
364 return -ENODEV;
365 }
366
367 /* init hardware-specific stuff */
368 bttv_gpio_inout(sub->core, ir->mask_keycode | ir->mask_keydown, 0);
369 ir->sub = sub;
370
371 /* init input device */
372 snprintf(ir->name, sizeof(ir->name), "bttv IR (card=%d)",
373 sub->core->type);
374 snprintf(ir->phys, sizeof(ir->phys), "pci-%s/ir0",
375 pci_name(sub->core->pci));
376
377 ir_input_init(&ir->input, &ir->ir, ir_type, ir_codes);
378 ir->input.name = ir->name;
379 ir->input.phys = ir->phys;
380 ir->input.id.bustype = BUS_PCI;
381 ir->input.id.version = 1;
382 if (sub->core->pci->subsystem_vendor) {
383 ir->input.id.vendor = sub->core->pci->subsystem_vendor;
384 ir->input.id.product = sub->core->pci->subsystem_device;
385 } else {
386 ir->input.id.vendor = sub->core->pci->vendor;
387 ir->input.id.product = sub->core->pci->device;
388 }
389
390 if (ir->polling) {
391 INIT_WORK(&ir->work, ir_work, ir);
392 init_timer(&ir->timer);
393 ir->timer.function = ir_timer;
394 ir->timer.data = (unsigned long)ir;
395 schedule_work(&ir->work);
396 }
397
398 /* all done */
399 dev_set_drvdata(dev,ir);
400 input_register_device(&ir->input);
401 printk(DEVNAME ": %s detected at %s\n",ir->input.name,ir->input.phys);
402
403 return 0;
404}
405
406static int ir_remove(struct device *dev)
407{
408 struct IR *ir = dev_get_drvdata(dev);
409
410 if (ir->polling) {
411 del_timer(&ir->timer);
412 flush_scheduled_work();
413 }
414
415 input_unregister_device(&ir->input);
416 kfree(ir);
417 return 0;
418}
419
420/* ---------------------------------------------------------------------- */
421
422MODULE_AUTHOR("Gerd Knorr, Pavel Machek");
423MODULE_DESCRIPTION("input driver for bt8x8 gpio IR remote controls");
424MODULE_LICENSE("GPL");
425
426static int ir_init(void)
427{
428 return bttv_sub_register(&driver, "remote");
429}
430
431static void ir_fini(void)
432{
433 bttv_sub_unregister(&driver);
434}
435
436module_init(ir_init);
437module_exit(ir_fini);
438
439
440/*
441 * Local variables:
442 * c-basic-offset: 8
443 * End:
444 */