diff options
Diffstat (limited to 'drivers/media/dvb/ttpci/av7110_ir.c')
| -rw-r--r-- | drivers/media/dvb/ttpci/av7110_ir.c | 212 |
1 files changed, 212 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 000000000000..6d2256f1e354 --- /dev/null +++ b/drivers/media/dvb/ttpci/av7110_ir.c @@ -0,0 +1,212 @@ +#include <linux/types.h> +#include <linux/init.h> +#include <linux/module.h> +#include <linux/moduleparam.h> +#include <linux/input.h> +#include <linux/proc_fs.h> +#include <asm/bitops.h> + +#include "av7110.h" + +#define UP_TIMEOUT (HZ/4) + +/* enable ir debugging by or'ing av7110_debug with 16 */ + +static int ir_initialized; +static struct input_dev input_dev; + +static u32 ir_config; + +static u16 key_map [256] = { + KEY_0, KEY_1, KEY_2, KEY_3, KEY_4, KEY_5, KEY_6, KEY_7, + KEY_8, KEY_9, KEY_BACK, 0, KEY_POWER, KEY_MUTE, 0, KEY_INFO, + KEY_VOLUMEUP, KEY_VOLUMEDOWN, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + KEY_CHANNELUP, KEY_CHANNELDOWN, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, KEY_TEXT, 0, 0, KEY_TV, 0, 0, 0, 0, 0, KEY_SETUP, 0, 0, + 0, 0, 0, KEY_SUBTITLE, 0, 0, KEY_LANGUAGE, 0, + KEY_RADIO, 0, 0, 0, 0, KEY_EXIT, 0, 0, + KEY_UP, KEY_DOWN, KEY_LEFT, KEY_RIGHT, KEY_OK, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, KEY_RED, KEY_GREEN, KEY_YELLOW, + KEY_BLUE, 0, 0, 0, 0, 0, 0, 0, KEY_MENU, KEY_LIST, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, KEY_UP, KEY_UP, KEY_DOWN, KEY_DOWN, + 0, 0, 0, 0, KEY_EPG, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, KEY_VCR +}; + + +static void av7110_emit_keyup(unsigned long data) +{ + if (!data || !test_bit(data, input_dev.key)) + return; + + input_event(&input_dev, EV_KEY, data, !!0); +} + + +static struct timer_list keyup_timer = { .function = av7110_emit_keyup }; + + +static void av7110_emit_key(u32 ircom) +{ + u8 data; + u8 addr; + static u16 old_toggle = 0; + u16 new_toggle; + u16 keycode; + + /* extract device address and data */ + if (ir_config & 0x0001) { + /* TODO RCMM: ? bits device address, 8 bits data */ + data = ircom & 0xff; + addr = (ircom >> 8) & 0xff; + } else { + /* RC5: 5 bits device address, 6 bits data */ + data = ircom & 0x3f; + addr = (ircom >> 6) & 0x1f; + } + + keycode = key_map[data]; + + dprintk(16, "#########%08x######### addr %i data 0x%02x (keycode %i)\n", + ircom, addr, data, keycode); + + /* check device address (if selected) */ + if (ir_config & 0x4000) + if (addr != ((ir_config >> 16) & 0xff)) + return; + + if (!keycode) { + printk ("%s: unknown key 0x%02x!!\n", __FUNCTION__, data); + return; + } + + if (ir_config & 0x0001) + new_toggle = 0; /* RCMM */ + else + new_toggle = (ircom & 0x800); /* RC5 */ + + if (timer_pending(&keyup_timer)) { + del_timer(&keyup_timer); + if (keyup_timer.data != keycode || new_toggle != old_toggle) { + input_event(&input_dev, EV_KEY, keyup_timer.data, !!0); + input_event(&input_dev, EV_KEY, keycode, !0); + } else + input_event(&input_dev, EV_KEY, keycode, 2); + + } else + input_event(&input_dev, EV_KEY, keycode, !0); + + keyup_timer.expires = jiffies + UP_TIMEOUT; + keyup_timer.data = keycode; + + add_timer(&keyup_timer); + + old_toggle = new_toggle; +} + +static void input_register_keys(void) +{ + int i; + + memset(input_dev.keybit, 0, sizeof(input_dev.keybit)); + + for (i = 0; i < sizeof(key_map) / sizeof(key_map[0]); i++) { + if (key_map[i] > KEY_MAX) + key_map[i] = 0; + else if (key_map[i] > KEY_RESERVED) + set_bit(key_map[i], input_dev.keybit); + } +} + + +static void input_repeat_key(unsigned long data) +{ + /* dummy routine to disable autorepeat in the input driver */ +} + + +static int av7110_ir_write_proc(struct file *file, const char __user *buffer, + unsigned long count, void *data) +{ + char *page; + int size = 4 + 256 * sizeof(u16); + + if (count < size) + return -EINVAL; + + page = (char *) vmalloc(size); + if (!page) + return -ENOMEM; + + if (copy_from_user(page, buffer, size)) { + vfree(page); + return -EFAULT; + } + + memcpy(&ir_config, page, 4); + memcpy(&key_map, page + 4, 256 * sizeof(u16)); + vfree(page); + av7110_setup_irc_config(NULL, ir_config); + input_register_keys(); + return count; +} + + +int __init av7110_ir_init(void) +{ + static struct proc_dir_entry *e; + + if (ir_initialized) + return 0; + + init_timer(&keyup_timer); + keyup_timer.data = 0; + + input_dev.name = "DVB on-card IR receiver"; + + /** + * enable keys + */ + set_bit(EV_KEY, input_dev.evbit); + set_bit(EV_REP, input_dev.evbit); + + input_register_keys(); + + input_register_device(&input_dev); + input_dev.timer.function = input_repeat_key; + + av7110_setup_irc_config(NULL, 0x0001); + av7110_register_irc_handler(av7110_emit_key); + + e = create_proc_entry("av7110_ir", S_IFREG | S_IRUGO | S_IWUSR, NULL); + if (e) { + e->write_proc = av7110_ir_write_proc; + e->size = 4 + 256 * sizeof(u16); + } + + ir_initialized = 1; + return 0; +} + + +void __exit av7110_ir_exit(void) +{ + if (ir_initialized == 0) + return; + del_timer_sync(&keyup_timer); + remove_proc_entry("av7110_ir", NULL); + av7110_unregister_irc_handler(av7110_emit_key); + input_unregister_device(&input_dev); + ir_initialized = 0; +} + +//MODULE_AUTHOR("Holger Waechtler <holger@convergence.de>"); +//MODULE_LICENSE("GPL"); + |