struct em28xx_IR {
struct em28xx *dev;
struct input_dev *input;
- struct ir_input_state ir;
char name[32];
char phys[32];
/* poll external decoder */
int polling;
struct delayed_work work;
- unsigned int last_toggle:1;
unsigned int full_code:1;
unsigned int last_readcount;
- unsigned int repeat_interval;
int (*get_key)(struct em28xx_IR *, struct em28xx_ir_poll_result *);
static void em28xx_ir_handle_key(struct em28xx_IR *ir)
{
int result;
- int do_sendkey = 0;
struct em28xx_ir_poll_result poll_result;
/* read the registers containing the IR status */
ir->last_readcount, poll_result.rc_address,
poll_result.rc_data[0]);
- if (ir->dev->chip_id == CHIP_ID_EM2874) {
+ if (poll_result.read_count > 0 &&
+ poll_result.read_count != ir->last_readcount) {
+ if (ir->full_code)
+ ir_keydown(ir->input,
+ poll_result.rc_address << 8 |
+ poll_result.rc_data[0],
+ poll_result.toggle_bit);
+ else
+ ir_keydown(ir->input,
+ poll_result.rc_data[0],
+ poll_result.toggle_bit);
+ }
+
+ if (ir->dev->chip_id == CHIP_ID_EM2874)
/* The em2874 clears the readcount field every time the
register is read. The em2860/2880 datasheet says that it
is supposed to clear the readcount, but it doesn't. So with
the em2874, we are looking for a non-zero read count as
opposed to a readcount that is incrementing */
ir->last_readcount = 0;
- }
-
- if (poll_result.read_count == 0) {
- /* The button has not been pressed since the last read */
- } else if (ir->last_toggle != poll_result.toggle_bit) {
- /* A button has been pressed */
- dprintk("button has been pressed\n");
- ir->last_toggle = poll_result.toggle_bit;
- ir->repeat_interval = 0;
- do_sendkey = 1;
- } else if (poll_result.toggle_bit == ir->last_toggle &&
- poll_result.read_count > 0 &&
- poll_result.read_count != ir->last_readcount) {
- /* The button is still being held down */
- dprintk("button being held down\n");
-
- /* Debouncer for first keypress */
- if (ir->repeat_interval++ > 9) {
- /* Start repeating after 1 second */
- do_sendkey = 1;
- }
- }
-
- if (do_sendkey) {
- dprintk("sending keypress\n");
-
- if (ir->full_code)
- ir_input_keydown(ir->input, &ir->ir,
- poll_result.rc_address << 8 |
- poll_result.rc_data[0]);
- else
- ir_input_keydown(ir->input, &ir->ir,
- poll_result.rc_data[0]);
-
- ir_input_nokey(ir->input, &ir->ir);
- }
-
- ir->last_readcount = poll_result.read_count;
- return;
+ else
+ ir->last_readcount = poll_result.read_count;
}
static void em28xx_ir_work(struct work_struct *work)
usb_make_path(dev->udev, ir->phys, sizeof(ir->phys));
strlcat(ir->phys, "/input0", sizeof(ir->phys));
- /* Set IR protocol */
- err = ir_input_init(input_dev, &ir->ir, IR_TYPE_OTHER);
- if (err < 0)
- goto err_out_free;
-
input_dev->name = ir->name;
input_dev->phys = ir->phys;
input_dev->id.bustype = BUS_USB;