diff options
Diffstat (limited to 'drivers/media/dvb/ttpci/av7110_ir.c')
-rw-r--r-- | drivers/media/dvb/ttpci/av7110_ir.c | 415 |
1 files changed, 415 insertions, 0 deletions
diff --git a/drivers/media/dvb/ttpci/av7110_ir.c b/drivers/media/dvb/ttpci/av7110_ir.c new file mode 100644 index 00000000000..908f272fe26 --- /dev/null +++ b/drivers/media/dvb/ttpci/av7110_ir.c | |||
@@ -0,0 +1,415 @@ | |||
1 | /* | ||
2 | * Driver for the remote control of SAA7146 based AV7110 cards | ||
3 | * | ||
4 | * Copyright (C) 1999-2003 Holger Waechtler <holger@convergence.de> | ||
5 | * Copyright (C) 2003-2007 Oliver Endriss <o.endriss@gmx.de> | ||
6 | * | ||
7 | * This program is free software; you can redistribute it and/or | ||
8 | * modify it under the terms of the GNU General Public License | ||
9 | * as published by the Free Software Foundation; either version 2 | ||
10 | * of the License, or (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 | * Or, point your browser to http://www.gnu.org/copyleft/gpl.html | ||
21 | * | ||
22 | */ | ||
23 | |||
24 | |||
25 | #include <linux/types.h> | ||
26 | #include <linux/init.h> | ||
27 | #include <linux/module.h> | ||
28 | #include <linux/proc_fs.h> | ||
29 | #include <linux/kernel.h> | ||
30 | #include <linux/bitops.h> | ||
31 | |||
32 | #include "av7110.h" | ||
33 | #include "av7110_hw.h" | ||
34 | |||
35 | |||
36 | #define AV_CNT 4 | ||
37 | |||
38 | #define IR_RC5 0 | ||
39 | #define IR_RCMM 1 | ||
40 | #define IR_RC5_EXT 2 /* internal only */ | ||
41 | |||
42 | #define IR_ALL 0xffffffff | ||
43 | |||
44 | #define UP_TIMEOUT (HZ*7/25) | ||
45 | |||
46 | |||
47 | /* Note: enable ir debugging by or'ing debug with 16 */ | ||
48 | |||
49 | static int ir_protocol[AV_CNT] = { IR_RCMM, IR_RCMM, IR_RCMM, IR_RCMM}; | ||
50 | module_param_array(ir_protocol, int, NULL, 0644); | ||
51 | MODULE_PARM_DESC(ir_protocol, "Infrared protocol: 0 RC5, 1 RCMM (default)"); | ||
52 | |||
53 | static int ir_inversion[AV_CNT]; | ||
54 | module_param_array(ir_inversion, int, NULL, 0644); | ||
55 | MODULE_PARM_DESC(ir_inversion, "Inversion of infrared signal: 0 not inverted (default), 1 inverted"); | ||
56 | |||
57 | static uint ir_device_mask[AV_CNT] = { IR_ALL, IR_ALL, IR_ALL, IR_ALL }; | ||
58 | module_param_array(ir_device_mask, uint, NULL, 0644); | ||
59 | MODULE_PARM_DESC(ir_device_mask, "Bitmask of infrared devices: bit 0..31 = device 0..31 (default: all)"); | ||
60 | |||
61 | |||
62 | static int av_cnt; | ||
63 | static struct av7110 *av_list[AV_CNT]; | ||
64 | |||
65 | static u16 default_key_map [256] = { | ||
66 | KEY_0, KEY_1, KEY_2, KEY_3, KEY_4, KEY_5, KEY_6, KEY_7, | ||
67 | KEY_8, KEY_9, KEY_BACK, 0, KEY_POWER, KEY_MUTE, 0, KEY_INFO, | ||
68 | KEY_VOLUMEUP, KEY_VOLUMEDOWN, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | ||
69 | KEY_CHANNELUP, KEY_CHANNELDOWN, 0, 0, 0, 0, 0, 0, | ||
70 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | ||
71 | 0, 0, 0, 0, KEY_TEXT, 0, 0, KEY_TV, 0, 0, 0, 0, 0, KEY_SETUP, 0, 0, | ||
72 | 0, 0, 0, KEY_SUBTITLE, 0, 0, KEY_LANGUAGE, 0, | ||
73 | KEY_RADIO, 0, 0, 0, 0, KEY_EXIT, 0, 0, | ||
74 | KEY_UP, KEY_DOWN, KEY_LEFT, KEY_RIGHT, KEY_OK, 0, 0, 0, | ||
75 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, KEY_RED, KEY_GREEN, KEY_YELLOW, | ||
76 | KEY_BLUE, 0, 0, 0, 0, 0, 0, 0, KEY_MENU, KEY_LIST, 0, 0, 0, 0, 0, 0, | ||
77 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | ||
78 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | ||
79 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | ||
80 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | ||
81 | 0, 0, 0, 0, KEY_UP, KEY_UP, KEY_DOWN, KEY_DOWN, | ||
82 | 0, 0, 0, 0, KEY_EPG, 0, 0, 0, | ||
83 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | ||
84 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | ||
85 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, KEY_VCR | ||
86 | }; | ||
87 | |||
88 | |||
89 | /* key-up timer */ | ||
90 | static void av7110_emit_keyup(unsigned long parm) | ||
91 | { | ||
92 | struct infrared *ir = (struct infrared *) parm; | ||
93 | |||
94 | if (!ir || !test_bit(ir->last_key, ir->input_dev->key)) | ||
95 | return; | ||
96 | |||
97 | input_report_key(ir->input_dev, ir->last_key, 0); | ||
98 | input_sync(ir->input_dev); | ||
99 | } | ||
100 | |||
101 | |||
102 | /* tasklet */ | ||
103 | static void av7110_emit_key(unsigned long parm) | ||
104 | { | ||
105 | struct infrared *ir = (struct infrared *) parm; | ||
106 | u32 ircom = ir->ir_command; | ||
107 | u8 data; | ||
108 | u8 addr; | ||
109 | u16 toggle; | ||
110 | u16 keycode; | ||
111 | |||
112 | /* extract device address and data */ | ||
113 | switch (ir->protocol) { | ||
114 | case IR_RC5: /* RC5: 5 bits device address, 6 bits data */ | ||
115 | data = ircom & 0x3f; | ||
116 | addr = (ircom >> 6) & 0x1f; | ||
117 | toggle = ircom & 0x0800; | ||
118 | break; | ||
119 | |||
120 | case IR_RCMM: /* RCMM: ? bits device address, ? bits data */ | ||
121 | data = ircom & 0xff; | ||
122 | addr = (ircom >> 8) & 0x1f; | ||
123 | toggle = ircom & 0x8000; | ||
124 | break; | ||
125 | |||
126 | case IR_RC5_EXT: /* extended RC5: 5 bits device address, 7 bits data */ | ||
127 | data = ircom & 0x3f; | ||
128 | addr = (ircom >> 6) & 0x1f; | ||
129 | /* invert 7th data bit for backward compatibility with RC5 keymaps */ | ||
130 | if (!(ircom & 0x1000)) | ||
131 | data |= 0x40; | ||
132 | toggle = ircom & 0x0800; | ||
133 | break; | ||
134 | |||
135 | default: | ||
136 | printk("%s invalid protocol %x\n", __func__, ir->protocol); | ||
137 | return; | ||
138 | } | ||
139 | |||
140 | input_event(ir->input_dev, EV_MSC, MSC_RAW, (addr << 16) | data); | ||
141 | input_event(ir->input_dev, EV_MSC, MSC_SCAN, data); | ||
142 | |||
143 | keycode = ir->key_map[data]; | ||
144 | |||
145 | dprintk(16, "%s: code %08x -> addr %i data 0x%02x -> keycode %i\n", | ||
146 | __func__, ircom, addr, data, keycode); | ||
147 | |||
148 | /* check device address */ | ||
149 | if (!(ir->device_mask & (1 << addr))) | ||
150 | return; | ||
151 | |||
152 | if (!keycode) { | ||
153 | printk ("%s: code %08x -> addr %i data 0x%02x -> unknown key!\n", | ||
154 | __func__, ircom, addr, data); | ||
155 | return; | ||
156 | } | ||
157 | |||
158 | if (timer_pending(&ir->keyup_timer)) { | ||
159 | del_timer(&ir->keyup_timer); | ||
160 | if (ir->last_key != keycode || toggle != ir->last_toggle) { | ||
161 | ir->delay_timer_finished = 0; | ||
162 | input_event(ir->input_dev, EV_KEY, ir->last_key, 0); | ||
163 | input_event(ir->input_dev, EV_KEY, keycode, 1); | ||
164 | input_sync(ir->input_dev); | ||
165 | } else if (ir->delay_timer_finished) { | ||
166 | input_event(ir->input_dev, EV_KEY, keycode, 2); | ||
167 | input_sync(ir->input_dev); | ||
168 | } | ||
169 | } else { | ||
170 | ir->delay_timer_finished = 0; | ||
171 | input_event(ir->input_dev, EV_KEY, keycode, 1); | ||
172 | input_sync(ir->input_dev); | ||
173 | } | ||
174 | |||
175 | ir->last_key = keycode; | ||
176 | ir->last_toggle = toggle; | ||
177 | |||
178 | ir->keyup_timer.expires = jiffies + UP_TIMEOUT; | ||
179 | add_timer(&ir->keyup_timer); | ||
180 | |||
181 | } | ||
182 | |||
183 | |||
184 | /* register with input layer */ | ||
185 | static void input_register_keys(struct infrared *ir) | ||
186 | { | ||
187 | int i; | ||
188 | |||
189 | set_bit(EV_KEY, ir->input_dev->evbit); | ||
190 | set_bit(EV_REP, ir->input_dev->evbit); | ||
191 | set_bit(EV_MSC, ir->input_dev->evbit); | ||
192 | |||
193 | set_bit(MSC_RAW, ir->input_dev->mscbit); | ||
194 | set_bit(MSC_SCAN, ir->input_dev->mscbit); | ||
195 | |||
196 | memset(ir->input_dev->keybit, 0, sizeof(ir->input_dev->keybit)); | ||
197 | |||
198 | for (i = 0; i < ARRAY_SIZE(ir->key_map); i++) { | ||
199 | if (ir->key_map[i] > KEY_MAX) | ||
200 | ir->key_map[i] = 0; | ||
201 | else if (ir->key_map[i] > KEY_RESERVED) | ||
202 | set_bit(ir->key_map[i], ir->input_dev->keybit); | ||
203 | } | ||
204 | |||
205 | ir->input_dev->keycode = ir->key_map; | ||
206 | ir->input_dev->keycodesize = sizeof(ir->key_map[0]); | ||
207 | ir->input_dev->keycodemax = ARRAY_SIZE(ir->key_map); | ||
208 | } | ||
209 | |||
210 | |||
211 | /* called by the input driver after rep[REP_DELAY] ms */ | ||
212 | static void input_repeat_key(unsigned long parm) | ||
213 | { | ||
214 | struct infrared *ir = (struct infrared *) parm; | ||
215 | |||
216 | ir->delay_timer_finished = 1; | ||
217 | } | ||
218 | |||
219 | |||
220 | /* check for configuration changes */ | ||
221 | int av7110_check_ir_config(struct av7110 *av7110, int force) | ||
222 | { | ||
223 | int i; | ||
224 | int modified = force; | ||
225 | int ret = -ENODEV; | ||
226 | |||
227 | for (i = 0; i < av_cnt; i++) | ||
228 | if (av7110 == av_list[i]) | ||
229 | break; | ||
230 | |||
231 | if (i < av_cnt && av7110) { | ||
232 | if ((av7110->ir.protocol & 1) != ir_protocol[i] || | ||
233 | av7110->ir.inversion != ir_inversion[i]) | ||
234 | modified = true; | ||
235 | |||
236 | if (modified) { | ||
237 | /* protocol */ | ||
238 | if (ir_protocol[i]) { | ||
239 | ir_protocol[i] = 1; | ||
240 | av7110->ir.protocol = IR_RCMM; | ||
241 | av7110->ir.ir_config = 0x0001; | ||
242 | } else if (FW_VERSION(av7110->arm_app) >= 0x2620) { | ||
243 | av7110->ir.protocol = IR_RC5_EXT; | ||
244 | av7110->ir.ir_config = 0x0002; | ||
245 | } else { | ||
246 | av7110->ir.protocol = IR_RC5; | ||
247 | av7110->ir.ir_config = 0x0000; | ||
248 | } | ||
249 | /* inversion */ | ||
250 | if (ir_inversion[i]) { | ||
251 | ir_inversion[i] = 1; | ||
252 | av7110->ir.ir_config |= 0x8000; | ||
253 | } | ||
254 | av7110->ir.inversion = ir_inversion[i]; | ||
255 | /* update ARM */ | ||
256 | ret = av7110_fw_cmd(av7110, COMTYPE_PIDFILTER, SetIR, 1, | ||
257 | av7110->ir.ir_config); | ||
258 | } else | ||
259 | ret = 0; | ||
260 | |||
261 | /* address */ | ||
262 | if (av7110->ir.device_mask != ir_device_mask[i]) | ||
263 | av7110->ir.device_mask = ir_device_mask[i]; | ||
264 | } | ||
265 | |||
266 | return ret; | ||
267 | } | ||
268 | |||
269 | |||
270 | /* /proc/av7110_ir interface */ | ||
271 | static ssize_t av7110_ir_proc_write(struct file *file, const char __user *buffer, | ||
272 | size_t count, loff_t *pos) | ||
273 | { | ||
274 | char *page; | ||
275 | u32 ir_config; | ||
276 | int size = sizeof ir_config + sizeof av_list[0]->ir.key_map; | ||
277 | int i; | ||
278 | |||
279 | if (count < size) | ||
280 | return -EINVAL; | ||
281 | |||
282 | page = vmalloc(size); | ||
283 | if (!page) | ||
284 | return -ENOMEM; | ||
285 | |||
286 | if (copy_from_user(page, buffer, size)) { | ||
287 | vfree(page); | ||
288 | return -EFAULT; | ||
289 | } | ||
290 | |||
291 | memcpy(&ir_config, page, sizeof ir_config); | ||
292 | |||
293 | for (i = 0; i < av_cnt; i++) { | ||
294 | /* keymap */ | ||
295 | memcpy(av_list[i]->ir.key_map, page + sizeof ir_config, | ||
296 | sizeof(av_list[i]->ir.key_map)); | ||
297 | /* protocol, inversion, address */ | ||
298 | ir_protocol[i] = ir_config & 0x0001; | ||
299 | ir_inversion[i] = ir_config & 0x8000 ? 1 : 0; | ||
300 | if (ir_config & 0x4000) | ||
301 | ir_device_mask[i] = 1 << ((ir_config >> 16) & 0x1f); | ||
302 | else | ||
303 | ir_device_mask[i] = IR_ALL; | ||
304 | /* update configuration */ | ||
305 | av7110_check_ir_config(av_list[i], false); | ||
306 | input_register_keys(&av_list[i]->ir); | ||
307 | } | ||
308 | vfree(page); | ||
309 | return count; | ||
310 | } | ||
311 | |||
312 | static const struct file_operations av7110_ir_proc_fops = { | ||
313 | .owner = THIS_MODULE, | ||
314 | .write = av7110_ir_proc_write, | ||
315 | .llseek = noop_llseek, | ||
316 | }; | ||
317 | |||
318 | /* interrupt handler */ | ||
319 | static void ir_handler(struct av7110 *av7110, u32 ircom) | ||
320 | { | ||
321 | dprintk(4, "ir command = %08x\n", ircom); | ||
322 | av7110->ir.ir_command = ircom; | ||
323 | tasklet_schedule(&av7110->ir.ir_tasklet); | ||
324 | } | ||
325 | |||
326 | |||
327 | int __devinit av7110_ir_init(struct av7110 *av7110) | ||
328 | { | ||
329 | struct input_dev *input_dev; | ||
330 | static struct proc_dir_entry *e; | ||
331 | int err; | ||
332 | |||
333 | if (av_cnt >= ARRAY_SIZE(av_list)) | ||
334 | return -ENOSPC; | ||
335 | |||
336 | av_list[av_cnt++] = av7110; | ||
337 | av7110_check_ir_config(av7110, true); | ||
338 | |||
339 | init_timer(&av7110->ir.keyup_timer); | ||
340 | av7110->ir.keyup_timer.function = av7110_emit_keyup; | ||
341 | av7110->ir.keyup_timer.data = (unsigned long) &av7110->ir; | ||
342 | |||
343 | input_dev = input_allocate_device(); | ||
344 | if (!input_dev) | ||
345 | return -ENOMEM; | ||
346 | |||
347 | av7110->ir.input_dev = input_dev; | ||
348 | snprintf(av7110->ir.input_phys, sizeof(av7110->ir.input_phys), | ||
349 | "pci-%s/ir0", pci_name(av7110->dev->pci)); | ||
350 | |||
351 | input_dev->name = "DVB on-card IR receiver"; | ||
352 | |||
353 | input_dev->phys = av7110->ir.input_phys; | ||
354 | input_dev->id.bustype = BUS_PCI; | ||
355 | input_dev->id.version = 2; | ||
356 | if (av7110->dev->pci->subsystem_vendor) { | ||
357 | input_dev->id.vendor = av7110->dev->pci->subsystem_vendor; | ||
358 | input_dev->id.product = av7110->dev->pci->subsystem_device; | ||
359 | } else { | ||
360 | input_dev->id.vendor = av7110->dev->pci->vendor; | ||
361 | input_dev->id.product = av7110->dev->pci->device; | ||
362 | } | ||
363 | input_dev->dev.parent = &av7110->dev->pci->dev; | ||
364 | /* initial keymap */ | ||
365 | memcpy(av7110->ir.key_map, default_key_map, sizeof av7110->ir.key_map); | ||
366 | input_register_keys(&av7110->ir); | ||
367 | err = input_register_device(input_dev); | ||
368 | if (err) { | ||
369 | input_free_device(input_dev); | ||
370 | return err; | ||
371 | } | ||
372 | input_dev->timer.function = input_repeat_key; | ||
373 | input_dev->timer.data = (unsigned long) &av7110->ir; | ||
374 | |||
375 | if (av_cnt == 1) { | ||
376 | e = proc_create("av7110_ir", S_IWUSR, NULL, &av7110_ir_proc_fops); | ||
377 | if (e) | ||
378 | e->size = 4 + 256 * sizeof(u16); | ||
379 | } | ||
380 | |||
381 | tasklet_init(&av7110->ir.ir_tasklet, av7110_emit_key, (unsigned long) &av7110->ir); | ||
382 | av7110->ir.ir_handler = ir_handler; | ||
383 | |||
384 | return 0; | ||
385 | } | ||
386 | |||
387 | |||
388 | void __devexit av7110_ir_exit(struct av7110 *av7110) | ||
389 | { | ||
390 | int i; | ||
391 | |||
392 | if (av_cnt == 0) | ||
393 | return; | ||
394 | |||
395 | del_timer_sync(&av7110->ir.keyup_timer); | ||
396 | av7110->ir.ir_handler = NULL; | ||
397 | tasklet_kill(&av7110->ir.ir_tasklet); | ||
398 | |||
399 | for (i = 0; i < av_cnt; i++) | ||
400 | if (av_list[i] == av7110) { | ||
401 | av_list[i] = av_list[av_cnt-1]; | ||
402 | av_list[av_cnt-1] = NULL; | ||
403 | break; | ||
404 | } | ||
405 | |||
406 | if (av_cnt == 1) | ||
407 | remove_proc_entry("av7110_ir", NULL); | ||
408 | |||
409 | input_unregister_device(av7110->ir.input_dev); | ||
410 | |||
411 | av_cnt--; | ||
412 | } | ||
413 | |||
414 | //MODULE_AUTHOR("Holger Waechtler <holger@convergence.de>, Oliver Endriss <o.endriss@gmx.de>"); | ||
415 | //MODULE_LICENSE("GPL"); | ||