278 lines
6.5 KiB
C
278 lines
6.5 KiB
C
#include <linux/types.h>
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#include <linux/init.h>
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#include <linux/module.h>
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#include <linux/moduleparam.h>
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#include <linux/input.h>
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#include <linux/proc_fs.h>
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#include <asm/bitops.h>
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#include "av7110.h"
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#include "av7110_hw.h"
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#define UP_TIMEOUT (HZ*7/25)
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/* enable ir debugging by or'ing debug with 16 */
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static int av_cnt;
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static struct av7110 *av_list[4];
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static struct input_dev *input_dev;
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static u8 delay_timer_finished;
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static u16 key_map [256] = {
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KEY_0, KEY_1, KEY_2, KEY_3, KEY_4, KEY_5, KEY_6, KEY_7,
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KEY_8, KEY_9, KEY_BACK, 0, KEY_POWER, KEY_MUTE, 0, KEY_INFO,
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KEY_VOLUMEUP, KEY_VOLUMEDOWN, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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KEY_CHANNELUP, KEY_CHANNELDOWN, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, KEY_TEXT, 0, 0, KEY_TV, 0, 0, 0, 0, 0, KEY_SETUP, 0, 0,
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0, 0, 0, KEY_SUBTITLE, 0, 0, KEY_LANGUAGE, 0,
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KEY_RADIO, 0, 0, 0, 0, KEY_EXIT, 0, 0,
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KEY_UP, KEY_DOWN, KEY_LEFT, KEY_RIGHT, KEY_OK, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, KEY_RED, KEY_GREEN, KEY_YELLOW,
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KEY_BLUE, 0, 0, 0, 0, 0, 0, 0, KEY_MENU, KEY_LIST, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, KEY_UP, KEY_UP, KEY_DOWN, KEY_DOWN,
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0, 0, 0, 0, KEY_EPG, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, KEY_VCR
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};
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static void av7110_emit_keyup(unsigned long data)
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{
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if (!data || !test_bit(data, input_dev->key))
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return;
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input_event(input_dev, EV_KEY, data, !!0);
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}
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static struct timer_list keyup_timer = { .function = av7110_emit_keyup };
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static void av7110_emit_key(unsigned long parm)
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{
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struct av7110 *av7110 = (struct av7110 *) parm;
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u32 ir_config = av7110->ir_config;
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u32 ircom = av7110->ir_command;
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u8 data;
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u8 addr;
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static u16 old_toggle = 0;
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u16 new_toggle;
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u16 keycode;
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/* extract device address and data */
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switch (ir_config & 0x0003) {
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case 0: /* RC5: 5 bits device address, 6 bits data */
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data = ircom & 0x3f;
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addr = (ircom >> 6) & 0x1f;
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break;
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case 1: /* RCMM: 8(?) bits device address, 8(?) bits data */
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data = ircom & 0xff;
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addr = (ircom >> 8) & 0xff;
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break;
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case 2: /* extended RC5: 5 bits device address, 7 bits data */
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data = ircom & 0x3f;
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addr = (ircom >> 6) & 0x1f;
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/* invert 7th data bit for backward compatibility with RC5 keymaps */
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if (!(ircom & 0x1000))
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data |= 0x40;
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break;
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default:
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printk("invalid ir_config %x\n", ir_config);
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return;
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}
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keycode = key_map[data];
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dprintk(16, "code %08x -> addr %i data 0x%02x -> keycode %i\n",
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ircom, addr, data, keycode);
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/* check device address (if selected) */
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if (ir_config & 0x4000)
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if (addr != ((ir_config >> 16) & 0xff))
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return;
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if (!keycode) {
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printk ("%s: unknown key 0x%02x!!\n", __FUNCTION__, data);
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return;
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}
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if ((ir_config & 0x0003) == 1)
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new_toggle = 0; /* RCMM */
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else
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new_toggle = (ircom & 0x800); /* RC5, extended RC5 */
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if (timer_pending(&keyup_timer)) {
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del_timer(&keyup_timer);
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if (keyup_timer.data != keycode || new_toggle != old_toggle) {
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delay_timer_finished = 0;
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input_event(input_dev, EV_KEY, keyup_timer.data, !!0);
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input_event(input_dev, EV_KEY, keycode, !0);
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} else
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if (delay_timer_finished)
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input_event(input_dev, EV_KEY, keycode, 2);
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} else {
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delay_timer_finished = 0;
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input_event(input_dev, EV_KEY, keycode, !0);
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}
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keyup_timer.expires = jiffies + UP_TIMEOUT;
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keyup_timer.data = keycode;
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add_timer(&keyup_timer);
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old_toggle = new_toggle;
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}
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static void input_register_keys(void)
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{
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int i;
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memset(input_dev->keybit, 0, sizeof(input_dev->keybit));
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for (i = 0; i < ARRAY_SIZE(key_map); i++) {
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if (key_map[i] > KEY_MAX)
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key_map[i] = 0;
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else if (key_map[i] > KEY_RESERVED)
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set_bit(key_map[i], input_dev->keybit);
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}
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}
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static void input_repeat_key(unsigned long data)
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{
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/* called by the input driver after rep[REP_DELAY] ms */
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delay_timer_finished = 1;
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}
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static int av7110_setup_irc_config(struct av7110 *av7110, u32 ir_config)
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{
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int ret = 0;
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dprintk(4, "%p\n", av7110);
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if (av7110) {
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ret = av7110_fw_cmd(av7110, COMTYPE_PIDFILTER, SetIR, 1, ir_config);
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av7110->ir_config = ir_config;
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}
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return ret;
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}
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static int av7110_ir_write_proc(struct file *file, const char __user *buffer,
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unsigned long count, void *data)
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{
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char *page;
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int size = 4 + 256 * sizeof(u16);
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u32 ir_config;
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int i;
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if (count < size)
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return -EINVAL;
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page = (char *) vmalloc(size);
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if (!page)
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return -ENOMEM;
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if (copy_from_user(page, buffer, size)) {
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vfree(page);
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return -EFAULT;
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}
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memcpy(&ir_config, page, 4);
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memcpy(&key_map, page + 4, 256 * sizeof(u16));
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vfree(page);
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if (FW_VERSION(av_list[0]->arm_app) >= 0x2620 && !(ir_config & 0x0001))
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ir_config |= 0x0002; /* enable extended RC5 */
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for (i = 0; i < av_cnt; i++)
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av7110_setup_irc_config(av_list[i], ir_config);
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input_register_keys();
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return count;
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}
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static void ir_handler(struct av7110 *av7110, u32 ircom)
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{
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dprintk(4, "ircommand = %08x\n", ircom);
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av7110->ir_command = ircom;
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tasklet_schedule(&av7110->ir_tasklet);
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}
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int __devinit av7110_ir_init(struct av7110 *av7110)
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{
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static struct proc_dir_entry *e;
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if (av_cnt >= sizeof av_list/sizeof av_list[0])
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return -ENOSPC;
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av7110_setup_irc_config(av7110, 0x0001);
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av_list[av_cnt++] = av7110;
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if (av_cnt == 1) {
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init_timer(&keyup_timer);
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keyup_timer.data = 0;
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input_dev = input_allocate_device();
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if (!input_dev)
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return -ENOMEM;
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input_dev->name = "DVB on-card IR receiver";
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set_bit(EV_KEY, input_dev->evbit);
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set_bit(EV_REP, input_dev->evbit);
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input_register_keys();
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input_register_device(input_dev);
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input_dev->timer.function = input_repeat_key;
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e = create_proc_entry("av7110_ir", S_IFREG | S_IRUGO | S_IWUSR, NULL);
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if (e) {
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e->write_proc = av7110_ir_write_proc;
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e->size = 4 + 256 * sizeof(u16);
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}
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}
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tasklet_init(&av7110->ir_tasklet, av7110_emit_key, (unsigned long) av7110);
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av7110->ir_handler = ir_handler;
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return 0;
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}
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void __devexit av7110_ir_exit(struct av7110 *av7110)
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{
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int i;
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if (av_cnt == 0)
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return;
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av7110->ir_handler = NULL;
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tasklet_kill(&av7110->ir_tasklet);
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for (i = 0; i < av_cnt; i++)
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if (av_list[i] == av7110) {
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av_list[i] = av_list[av_cnt-1];
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av_list[av_cnt-1] = NULL;
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break;
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}
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if (av_cnt == 1) {
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del_timer_sync(&keyup_timer);
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remove_proc_entry("av7110_ir", NULL);
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input_unregister_device(input_dev);
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}
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av_cnt--;
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}
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//MODULE_AUTHOR("Holger Waechtler <holger@convergence.de>");
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//MODULE_LICENSE("GPL");
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