static void tm6000_ir_keydown(struct tm6000_IR *ir,
const char *buf, unsigned int len)
{
u8 device, command;
u32 scancode;
enum rc_proto protocol;
if (len < 1)
return;
command = buf[0];
device = (len > 1 ? buf[1] : 0x0);
switch (ir->rc_proto) {
case RC_PROTO_BIT_RC5:
protocol = RC_PROTO_RC5;
scancode = RC_SCANCODE_RC5(device, command);
break;
case RC_PROTO_BIT_NEC:
protocol = RC_PROTO_NEC;
scancode = RC_SCANCODE_NEC(device, command);
break;
default:
protocol = RC_PROTO_OTHER;
scancode = RC_SCANCODE_OTHER(device << 8 | command);
break;
}
dprintk(1, "%s, protocol: 0x%04x, scancode: 0x%08x\n",
__func__, protocol, scancode);
rc_keydown(ir->rc, protocol, scancode, 0);
}
static void bttv_rc5_timer_end(unsigned long data)
{
struct bttv_ir *ir = (struct bttv_ir *)data;
ktime_t tv;
u32 gap, rc5, scancode;
u8 toggle, command, system;
/* get time */
tv = ktime_get();
gap = ktime_to_us(ktime_sub(tv, ir->base_time));
/* avoid overflow with gap >1s */
if (gap > USEC_PER_SEC) {
gap = 200000;
}
/* signal we're ready to start a new code */
ir->active = false;
/* Allow some timer jitter (RC5 is ~24ms anyway so this is ok) */
if (gap < 28000) {
dprintk("spurious timer_end\n");
return;
}
if (ir->last_bit < 20) {
/* ignore spurious codes (caused by light/other remotes) */
dprintk("short code: %x\n", ir->code);
return;
}
ir->code = (ir->code << ir->shift_by) | 1;
rc5 = bttv_rc5_decode(ir->code);
toggle = RC5_TOGGLE(rc5);
system = RC5_ADDR(rc5);
command = RC5_INSTR(rc5);
switch (RC5_START(rc5)) {
case 0x3:
break;
case 0x2:
command += 0x40;
break;
default:
return;
}
scancode = RC_SCANCODE_RC5(system, command);
rc_keydown(ir->dev, RC_TYPE_RC5, scancode, toggle);
dprintk("scancode %x, toggle %x\n", scancode, toggle);
}
