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 */
av7110_emit_keyup(unsigned long parm)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 */
av7110_emit_key(unsigned long parm)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 */
input_register_keys(struct infrared * ir)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 */
input_repeat_key(unsigned long parm)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 */
av7110_check_ir_config(struct av7110 * av7110,int force)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 */
av7110_ir_proc_write(struct file * file,const char __user * buffer,size_t count,loff_t * pos)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 */
ir_handler(struct av7110 * av7110,u32 ircom)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
av7110_ir_init(struct av7110 * av7110)327 int 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 proc_set_size(e, 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
av7110_ir_exit(struct av7110 * av7110)388 void 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");
416