Commit | Line | Data |
---|---|---|
1da177e4 | 1 | /* |
1da177e4 LT |
2 | * |
3 | * Copyright (c) 2003 Gerd Knorr | |
4 | * Copyright (c) 2003 Pavel Machek | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation; either version 2 of the License, or | |
9 | * (at your option) any later version. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | * GNU General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License | |
17 | * along with this program; if not, write to the Free Software | |
18 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
19 | */ | |
20 | ||
21 | #include <linux/module.h> | |
1da177e4 LT |
22 | #include <linux/init.h> |
23 | #include <linux/delay.h> | |
24 | #include <linux/interrupt.h> | |
25 | #include <linux/input.h> | |
5a0e3ad6 | 26 | #include <linux/slab.h> |
1da177e4 | 27 | |
1da177e4 | 28 | #include "bttv.h" |
4abdfed5 | 29 | #include "bttvp.h" |
1da177e4 | 30 | |
6c6c0b2c | 31 | |
7d341a6a MCC |
32 | static int ir_debug; |
33 | module_param(ir_debug, int, 0644); | |
1da177e4 | 34 | |
c408a6f6 | 35 | static int ir_rc5_remote_gap = 885; |
9160723e | 36 | module_param(ir_rc5_remote_gap, int, 0644); |
9160723e | 37 | |
7d341a6a MCC |
38 | #undef dprintk |
39 | #define dprintk(arg...) do { \ | |
40 | if (ir_debug >= 1) \ | |
41 | printk(arg); \ | |
42 | } while (0) | |
43 | ||
4abdfed5 | 44 | #define DEVNAME "bttv-input" |
1da177e4 | 45 | |
727e625c MCC |
46 | #define MODULE_NAME "bttv" |
47 | ||
1da177e4 LT |
48 | /* ---------------------------------------------------------------------- */ |
49 | ||
4abdfed5 | 50 | static void ir_handle_key(struct bttv *btv) |
1da177e4 | 51 | { |
9160723e | 52 | struct card_ir *ir = btv->remote; |
1da177e4 LT |
53 | u32 gpio,data; |
54 | ||
55 | /* read gpio value */ | |
4abdfed5 | 56 | gpio = bttv_gpio_read(&btv->c); |
1da177e4 LT |
57 | if (ir->polling) { |
58 | if (ir->last_gpio == gpio) | |
59 | return; | |
60 | ir->last_gpio = gpio; | |
61 | } | |
62 | ||
63 | /* extract data */ | |
64 | data = ir_extract_bits(gpio, ir->mask_keycode); | |
4abdfed5 | 65 | dprintk(KERN_INFO DEVNAME ": irq gpio=0x%x code=%d | %s%s%s\n", |
1da177e4 LT |
66 | gpio, data, |
67 | ir->polling ? "poll" : "irq", | |
68 | (gpio & ir->mask_keydown) ? " down" : "", | |
69 | (gpio & ir->mask_keyup) ? " up" : ""); | |
70 | ||
62c65031 DH |
71 | if ((ir->mask_keydown && (gpio & ir->mask_keydown)) || |
72 | (ir->mask_keyup && !(gpio & ir->mask_keyup))) { | |
73 | ir_keydown_notimeout(ir->dev, data, 0); | |
1da177e4 | 74 | } else { |
b3d98135 MCC |
75 | /* HACK: Probably, ir->mask_keydown is missing |
76 | for this board */ | |
77 | if (btv->c.type == BTTV_BOARD_WINFAST2000) | |
62c65031 | 78 | ir_keydown_notimeout(ir->dev, data, 0); |
b3d98135 | 79 | |
62c65031 | 80 | ir_keyup(ir->dev); |
1da177e4 | 81 | } |
1da177e4 LT |
82 | } |
83 | ||
7d341a6a MCC |
84 | static void ir_enltv_handle_key(struct bttv *btv) |
85 | { | |
86 | struct card_ir *ir = btv->remote; | |
87 | u32 gpio, data, keyup; | |
88 | ||
89 | /* read gpio value */ | |
90 | gpio = bttv_gpio_read(&btv->c); | |
91 | ||
92 | /* extract data */ | |
93 | data = ir_extract_bits(gpio, ir->mask_keycode); | |
94 | ||
95 | /* Check if it is keyup */ | |
96 | keyup = (gpio & ir->mask_keyup) ? 1 << 31 : 0; | |
97 | ||
98 | if ((ir->last_gpio & 0x7f) != data) { | |
99 | dprintk(KERN_INFO DEVNAME ": gpio=0x%x code=%d | %s\n", | |
100 | gpio, data, | |
101 | (gpio & ir->mask_keyup) ? " up" : "up/down"); | |
102 | ||
62c65031 | 103 | ir_keydown_notimeout(ir->dev, data, 0); |
7d341a6a | 104 | if (keyup) |
62c65031 | 105 | ir_keyup(ir->dev); |
7d341a6a MCC |
106 | } else { |
107 | if ((ir->last_gpio & 1 << 31) == keyup) | |
108 | return; | |
109 | ||
110 | dprintk(KERN_INFO DEVNAME ":(cnt) gpio=0x%x code=%d | %s\n", | |
111 | gpio, data, | |
112 | (gpio & ir->mask_keyup) ? " up" : "down"); | |
113 | ||
114 | if (keyup) | |
62c65031 | 115 | ir_keyup(ir->dev); |
7d341a6a | 116 | else |
62c65031 | 117 | ir_keydown_notimeout(ir->dev, data, 0); |
7d341a6a MCC |
118 | } |
119 | ||
120 | ir->last_gpio = data | keyup; | |
121 | } | |
122 | ||
4abdfed5 | 123 | void bttv_input_irq(struct bttv *btv) |
1da177e4 | 124 | { |
9160723e | 125 | struct card_ir *ir = btv->remote; |
1da177e4 | 126 | |
4abdfed5 RC |
127 | if (!ir->polling) |
128 | ir_handle_key(btv); | |
1da177e4 LT |
129 | } |
130 | ||
4abdfed5 | 131 | static void bttv_input_timer(unsigned long data) |
1da177e4 | 132 | { |
4abdfed5 | 133 | struct bttv *btv = (struct bttv*)data; |
9160723e | 134 | struct card_ir *ir = btv->remote; |
1da177e4 | 135 | |
7d341a6a MCC |
136 | if (btv->c.type == BTTV_BOARD_ENLTV_FM_2) |
137 | ir_enltv_handle_key(btv); | |
138 | else | |
139 | ir_handle_key(btv); | |
c1904956 | 140 | mod_timer(&ir->timer, jiffies + msecs_to_jiffies(ir->polling)); |
1da177e4 LT |
141 | } |
142 | ||
6c6c0b2c MW |
143 | /* ---------------------------------------------------------------*/ |
144 | ||
4abdfed5 | 145 | static int bttv_rc5_irq(struct bttv *btv) |
6c6c0b2c | 146 | { |
9160723e | 147 | struct card_ir *ir = btv->remote; |
6c6c0b2c MW |
148 | struct timeval tv; |
149 | u32 gpio; | |
150 | u32 gap; | |
c1904956 | 151 | unsigned long current_jiffies; |
6c6c0b2c MW |
152 | |
153 | /* read gpio port */ | |
4abdfed5 | 154 | gpio = bttv_gpio_read(&btv->c); |
6c6c0b2c MW |
155 | |
156 | /* remote IRQ? */ | |
157 | if (!(gpio & 0x20)) | |
158 | return 0; | |
159 | ||
160 | /* get time of bit */ | |
161 | current_jiffies = jiffies; | |
162 | do_gettimeofday(&tv); | |
163 | ||
164 | /* avoid overflow with gap >1s */ | |
165 | if (tv.tv_sec - ir->base_time.tv_sec > 1) { | |
166 | gap = 200000; | |
167 | } else { | |
168 | gap = 1000000 * (tv.tv_sec - ir->base_time.tv_sec) + | |
169 | tv.tv_usec - ir->base_time.tv_usec; | |
170 | } | |
171 | ||
172 | /* active code => add bit */ | |
173 | if (ir->active) { | |
174 | /* only if in the code (otherwise spurious IRQ or timer | |
175 | late) */ | |
176 | if (ir->last_bit < 28) { | |
9160723e HP |
177 | ir->last_bit = (gap - ir_rc5_remote_gap / 2) / |
178 | ir_rc5_remote_gap; | |
6c6c0b2c MW |
179 | ir->code |= 1 << ir->last_bit; |
180 | } | |
181 | /* starting new code */ | |
182 | } else { | |
183 | ir->active = 1; | |
184 | ir->code = 0; | |
185 | ir->base_time = tv; | |
186 | ir->last_bit = 0; | |
187 | ||
c1904956 DT |
188 | mod_timer(&ir->timer_end, |
189 | current_jiffies + msecs_to_jiffies(30)); | |
6c6c0b2c MW |
190 | } |
191 | ||
192 | /* toggle GPIO pin 4 to reset the irq */ | |
4abdfed5 RC |
193 | bttv_gpio_write(&btv->c, gpio & ~(1 << 4)); |
194 | bttv_gpio_write(&btv->c, gpio | (1 << 4)); | |
6c6c0b2c MW |
195 | return 1; |
196 | } | |
197 | ||
1da177e4 LT |
198 | /* ---------------------------------------------------------------------- */ |
199 | ||
9160723e | 200 | static void bttv_ir_start(struct bttv *btv, struct card_ir *ir) |
b07b4783 DT |
201 | { |
202 | if (ir->polling) { | |
c1904956 | 203 | setup_timer(&ir->timer, bttv_input_timer, (unsigned long)btv); |
fe06fe0a | 204 | ir->timer.expires = jiffies + msecs_to_jiffies(1000); |
b07b4783 DT |
205 | add_timer(&ir->timer); |
206 | } else if (ir->rc5_gpio) { | |
207 | /* set timer_end for code completion */ | |
208 | init_timer(&ir->timer_end); | |
9160723e | 209 | ir->timer_end.function = ir_rc5_timer_end; |
b07b4783 | 210 | ir->timer_end.data = (unsigned long)ir; |
9160723e HP |
211 | ir->shift_by = 1; |
212 | ir->start = 3; | |
213 | ir->addr = 0x0; | |
9160723e | 214 | ir->rc5_remote_gap = ir_rc5_remote_gap; |
b07b4783 DT |
215 | } |
216 | } | |
217 | ||
218 | static void bttv_ir_stop(struct bttv *btv) | |
219 | { | |
220 | if (btv->remote->polling) { | |
221 | del_timer_sync(&btv->remote->timer); | |
222 | flush_scheduled_work(); | |
223 | } | |
224 | ||
225 | if (btv->remote->rc5_gpio) { | |
226 | u32 gpio; | |
227 | ||
228 | del_timer_sync(&btv->remote->timer_end); | |
229 | flush_scheduled_work(); | |
230 | ||
231 | gpio = bttv_gpio_read(&btv->c); | |
232 | bttv_gpio_write(&btv->c, gpio & ~(1 << 4)); | |
233 | } | |
234 | } | |
235 | ||
c0c46826 MCC |
236 | /* |
237 | * Get_key functions used by I2C remotes | |
238 | */ | |
239 | ||
240 | static int get_key_pv951(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw) | |
241 | { | |
242 | unsigned char b; | |
243 | ||
244 | /* poll IR chip */ | |
245 | if (1 != i2c_master_recv(ir->c, &b, 1)) { | |
246 | dprintk(KERN_INFO DEVNAME ": read error\n"); | |
247 | return -EIO; | |
248 | } | |
249 | ||
250 | /* ignore 0xaa */ | |
251 | if (b==0xaa) | |
252 | return 0; | |
253 | dprintk(KERN_INFO DEVNAME ": key %02x\n", b); | |
254 | ||
255 | *ir_key = b; | |
256 | *ir_raw = b; | |
257 | return 1; | |
258 | } | |
259 | ||
260 | /* Instantiate the I2C IR receiver device, if present */ | |
261 | void __devinit init_bttv_i2c_ir(struct bttv *btv) | |
262 | { | |
263 | const unsigned short addr_list[] = { | |
264 | 0x1a, 0x18, 0x64, 0x30, 0x71, | |
265 | I2C_CLIENT_END | |
266 | }; | |
267 | struct i2c_board_info info; | |
268 | ||
269 | if (0 != btv->i2c_rc) | |
270 | return; | |
271 | ||
272 | memset(&info, 0, sizeof(struct i2c_board_info)); | |
273 | memset(&btv->init_data, 0, sizeof(btv->init_data)); | |
274 | strlcpy(info.type, "ir_video", I2C_NAME_SIZE); | |
275 | ||
276 | switch (btv->c.type) { | |
277 | case BTTV_BOARD_PV951: | |
278 | btv->init_data.name = "PV951"; | |
279 | btv->init_data.get_key = get_key_pv951; | |
280 | btv->init_data.ir_codes = RC_MAP_PV951; | |
c0c46826 MCC |
281 | info.addr = 0x4b; |
282 | break; | |
283 | default: | |
284 | /* | |
285 | * The external IR receiver is at i2c address 0x34 (0x35 for | |
286 | * reads). Future Hauppauge cards will have an internal | |
287 | * receiver at 0x30 (0x31 for reads). In theory, both can be | |
288 | * fitted, and Hauppauge suggest an external overrides an | |
289 | * internal. | |
290 | * That's why we probe 0x1a (~0x34) first. CB | |
291 | */ | |
292 | ||
293 | i2c_new_probed_device(&btv->c.i2c_adap, &info, addr_list, NULL); | |
294 | return; | |
295 | } | |
296 | ||
297 | if (btv->init_data.name) | |
298 | info.platform_data = &btv->init_data; | |
299 | i2c_new_device(&btv->c.i2c_adap, &info); | |
300 | ||
301 | return; | |
302 | } | |
303 | ||
304 | int __devexit fini_bttv_i2c(struct bttv *btv) | |
305 | { | |
306 | if (0 != btv->i2c_rc) | |
307 | return 0; | |
308 | ||
309 | return i2c_del_adapter(&btv->c.i2c_adap); | |
310 | } | |
311 | ||
4abdfed5 | 312 | int bttv_input_init(struct bttv *btv) |
1da177e4 | 313 | { |
9160723e | 314 | struct card_ir *ir; |
02858eed | 315 | char *ir_codes = NULL; |
d8b4b582 | 316 | struct rc_dev *rc; |
b07b4783 | 317 | int err = -ENOMEM; |
1da177e4 | 318 | |
4abdfed5 RC |
319 | if (!btv->has_remote) |
320 | return -ENODEV; | |
321 | ||
322 | ir = kzalloc(sizeof(*ir),GFP_KERNEL); | |
d8b4b582 DH |
323 | rc = rc_allocate_device(); |
324 | if (!ir || !rc) | |
b07b4783 | 325 | goto err_out_free; |
1da177e4 LT |
326 | |
327 | /* detect & configure */ | |
4abdfed5 | 328 | switch (btv->c.type) { |
5a25e84b MCC |
329 | case BTTV_BOARD_AVERMEDIA: |
330 | case BTTV_BOARD_AVPHONE98: | |
331 | case BTTV_BOARD_AVERMEDIA98: | |
02858eed | 332 | ir_codes = RC_MAP_AVERMEDIA; |
1da177e4 LT |
333 | ir->mask_keycode = 0xf88000; |
334 | ir->mask_keydown = 0x010000; | |
335 | ir->polling = 50; // ms | |
336 | break; | |
337 | ||
5a25e84b MCC |
338 | case BTTV_BOARD_AVDVBT_761: |
339 | case BTTV_BOARD_AVDVBT_771: | |
02858eed | 340 | ir_codes = RC_MAP_AVERMEDIA_DVBT; |
1da177e4 LT |
341 | ir->mask_keycode = 0x0f00c0; |
342 | ir->mask_keydown = 0x000020; | |
343 | ir->polling = 50; // ms | |
344 | break; | |
345 | ||
5a25e84b | 346 | case BTTV_BOARD_PXELVWPLTVPAK: |
02858eed | 347 | ir_codes = RC_MAP_PIXELVIEW; |
1da177e4 LT |
348 | ir->mask_keycode = 0x003e00; |
349 | ir->mask_keyup = 0x010000; | |
350 | ir->polling = 50; // ms | |
4ac97914 | 351 | break; |
c663155c | 352 | case BTTV_BOARD_PV_M4900: |
5a25e84b MCC |
353 | case BTTV_BOARD_PV_BT878P_9B: |
354 | case BTTV_BOARD_PV_BT878P_PLUS: | |
02858eed | 355 | ir_codes = RC_MAP_PIXELVIEW; |
1da177e4 LT |
356 | ir->mask_keycode = 0x001f00; |
357 | ir->mask_keyup = 0x008000; | |
358 | ir->polling = 50; // ms | |
4ac97914 | 359 | break; |
1da177e4 | 360 | |
5a25e84b | 361 | case BTTV_BOARD_WINFAST2000: |
02858eed | 362 | ir_codes = RC_MAP_WINFAST; |
1da177e4 LT |
363 | ir->mask_keycode = 0x1f8; |
364 | break; | |
5a25e84b MCC |
365 | case BTTV_BOARD_MAGICTVIEW061: |
366 | case BTTV_BOARD_MAGICTVIEW063: | |
02858eed | 367 | ir_codes = RC_MAP_WINFAST; |
1da177e4 LT |
368 | ir->mask_keycode = 0x0008e000; |
369 | ir->mask_keydown = 0x00200000; | |
370 | break; | |
5a25e84b | 371 | case BTTV_BOARD_APAC_VIEWCOMP: |
02858eed | 372 | ir_codes = RC_MAP_APAC_VIEWCOMP; |
1da177e4 LT |
373 | ir->mask_keycode = 0x001f00; |
374 | ir->mask_keyup = 0x008000; | |
375 | ir->polling = 50; // ms | |
376 | break; | |
ed44f66e | 377 | case BTTV_BOARD_ASKEY_CPH03X: |
5a25e84b | 378 | case BTTV_BOARD_CONCEPTRONIC_CTVFMI2: |
4ab2b99b | 379 | case BTTV_BOARD_CONTVFMI: |
02858eed | 380 | ir_codes = RC_MAP_PIXELVIEW; |
cc9d8d49 RC |
381 | ir->mask_keycode = 0x001F00; |
382 | ir->mask_keyup = 0x006000; | |
383 | ir->polling = 50; // ms | |
384 | break; | |
6c6c0b2c | 385 | case BTTV_BOARD_NEBULA_DIGITV: |
02858eed | 386 | ir_codes = RC_MAP_NEBULA; |
4abdfed5 | 387 | btv->custom_irq = bttv_rc5_irq; |
6c6c0b2c | 388 | ir->rc5_gpio = 1; |
674434c6 | 389 | break; |
2d05ae6b | 390 | case BTTV_BOARD_MACHTV_MAGICTV: |
02858eed | 391 | ir_codes = RC_MAP_APAC_VIEWCOMP; |
2d05ae6b JC |
392 | ir->mask_keycode = 0x001F00; |
393 | ir->mask_keyup = 0x004000; | |
394 | ir->polling = 50; /* ms */ | |
395 | break; | |
e80faad3 | 396 | case BTTV_BOARD_KOZUMI_KTV_01C: |
02858eed | 397 | ir_codes = RC_MAP_PCTV_SEDNA; |
e80faad3 ML |
398 | ir->mask_keycode = 0x001f00; |
399 | ir->mask_keyup = 0x006000; | |
400 | ir->polling = 50; /* ms */ | |
401 | break; | |
7d341a6a | 402 | case BTTV_BOARD_ENLTV_FM_2: |
02858eed | 403 | ir_codes = RC_MAP_ENCORE_ENLTV2; |
7d341a6a MCC |
404 | ir->mask_keycode = 0x00fd00; |
405 | ir->mask_keyup = 0x000080; | |
406 | ir->polling = 1; /* ms */ | |
407 | ir->last_gpio = ir_extract_bits(bttv_gpio_read(&btv->c), | |
408 | ir->mask_keycode); | |
409 | break; | |
1da177e4 LT |
410 | } |
411 | if (NULL == ir_codes) { | |
b07b4783 DT |
412 | dprintk(KERN_INFO "Ooops: IR config error [card=%d]\n", btv->c.type); |
413 | err = -ENODEV; | |
414 | goto err_out_free; | |
1da177e4 LT |
415 | } |
416 | ||
6c6c0b2c MW |
417 | if (ir->rc5_gpio) { |
418 | u32 gpio; | |
657de3cd | 419 | /* enable remote irq */ |
4abdfed5 RC |
420 | bttv_gpio_inout(&btv->c, (1 << 4), 1 << 4); |
421 | gpio = bttv_gpio_read(&btv->c); | |
422 | bttv_gpio_write(&btv->c, gpio & ~(1 << 4)); | |
423 | bttv_gpio_write(&btv->c, gpio | (1 << 4)); | |
6c6c0b2c MW |
424 | } else { |
425 | /* init hardware-specific stuff */ | |
4abdfed5 | 426 | bttv_gpio_inout(&btv->c, ir->mask_keycode | ir->mask_keydown, 0); |
6c6c0b2c | 427 | } |
1da177e4 LT |
428 | |
429 | /* init input device */ | |
d8b4b582 | 430 | ir->dev = rc; |
4abdfed5 | 431 | |
1da177e4 | 432 | snprintf(ir->name, sizeof(ir->name), "bttv IR (card=%d)", |
4abdfed5 | 433 | btv->c.type); |
1da177e4 | 434 | snprintf(ir->phys, sizeof(ir->phys), "pci-%s/ir0", |
4abdfed5 | 435 | pci_name(btv->c.pci)); |
1da177e4 | 436 | |
d8b4b582 DH |
437 | rc->input_name = ir->name; |
438 | rc->input_phys = ir->phys; | |
439 | rc->input_id.bustype = BUS_PCI; | |
440 | rc->input_id.version = 1; | |
4abdfed5 | 441 | if (btv->c.pci->subsystem_vendor) { |
d8b4b582 DH |
442 | rc->input_id.vendor = btv->c.pci->subsystem_vendor; |
443 | rc->input_id.product = btv->c.pci->subsystem_device; | |
1da177e4 | 444 | } else { |
d8b4b582 DH |
445 | rc->input_id.vendor = btv->c.pci->vendor; |
446 | rc->input_id.product = btv->c.pci->device; | |
1da177e4 | 447 | } |
d8b4b582 DH |
448 | rc->dev.parent = &btv->c.pci->dev; |
449 | rc->map_name = ir_codes; | |
450 | rc->driver_name = MODULE_NAME; | |
1da177e4 | 451 | |
4abdfed5 | 452 | btv->remote = ir; |
b07b4783 | 453 | bttv_ir_start(btv, ir); |
1da177e4 LT |
454 | |
455 | /* all done */ | |
d8b4b582 | 456 | err = rc_register_device(rc); |
b07b4783 DT |
457 | if (err) |
458 | goto err_out_stop; | |
6c6c0b2c | 459 | |
1da177e4 | 460 | return 0; |
b07b4783 DT |
461 | |
462 | err_out_stop: | |
463 | bttv_ir_stop(btv); | |
464 | btv->remote = NULL; | |
465 | err_out_free: | |
d8b4b582 | 466 | rc_free_device(rc); |
b07b4783 DT |
467 | kfree(ir); |
468 | return err; | |
1da177e4 LT |
469 | } |
470 | ||
4abdfed5 | 471 | void bttv_input_fini(struct bttv *btv) |
1da177e4 | 472 | { |
4abdfed5 RC |
473 | if (btv->remote == NULL) |
474 | return; | |
1da177e4 | 475 | |
b07b4783 | 476 | bttv_ir_stop(btv); |
d8b4b582 | 477 | rc_unregister_device(btv->remote->dev); |
4abdfed5 RC |
478 | kfree(btv->remote); |
479 | btv->remote = NULL; | |
1da177e4 | 480 | } |