This patch enables support for repeating last event when a key is holded
down with dib0700 devices. It works with rc5 and nec remotes.
It also fixes an annoying bug that floods kernel log with "Unknown key"
messages after each keypress. This happened because the driver was not
resetting infrared register after each poll so it kept polling last key
even if nothing was being pressed. Fixing this, (calling rc_setup after
each poll), permits to implement key repeat.
Signed-off-by: Filippo Argiolas <filippo.argiolas at gmail.com>
I'm resending the patch because I didn't sign it off the first time.
It's been a while since it's out, it has been tested and received many
positive comments and no complaint. Please refer to my previous post for
a complete description of the problem and how the patch fixes it.
Hope everything is ok for inclusion :P
Thanks,
Cheers,
Filippo
diff -r 127f67dea087 linux/drivers/media/dvb/dvb-usb/dib0700.h
--- a/linux/drivers/media/dvb/dvb-usb/dib0700.h Tue Feb 26 20:43:56 2008 +0000
+++ b/linux/drivers/media/dvb/dvb-usb/dib0700.h Sun Mar 02 20:30:41 2008 +0100
@@ -37,6 +37,7 @@ struct dib0700_state {
u8 channel_state;
u16 mt2060_if1[2];
u8 rc_toggle;
+ u8 rc_counter;
u8 is_dib7000pc;
};
@@ -44,12 +45,15 @@ extern int dib0700_ctrl_clock(struct dvb
extern int dib0700_ctrl_clock(struct dvb_usb_device *d, u32 clk_MHz, u8 clock_out_gp3);
extern int dib0700_ctrl_rd(struct dvb_usb_device *d, u8 *tx, u8 txlen, u8 *rx, u8 rxlen);
extern int dib0700_download_firmware(struct usb_device *udev, const struct firmware *fw);
+extern int dib0700_rc_setup(struct dvb_usb_device *d);
extern int dib0700_streaming_ctrl(struct dvb_usb_adapter *adap, int onoff);
extern struct i2c_algorithm dib0700_i2c_algo;
extern int dib0700_identify_state(struct usb_device *udev, struct dvb_usb_device_properties *props,
struct dvb_usb_device_description **desc, int *cold);
extern int dib0700_device_count;
+extern int dvb_usb_dib0700_ir_proto;
extern struct dvb_usb_device_properties dib0700_devices[];
extern struct usb_device_id dib0700_usb_id_table[];
+
#endif
diff -r 127f67dea087 linux/drivers/media/dvb/dvb-usb/dib0700_core.c
--- a/linux/drivers/media/dvb/dvb-usb/dib0700_core.c Tue Feb 26 20:43:56 2008 +0000
+++ b/linux/drivers/media/dvb/dvb-usb/dib0700_core.c Sun Mar 02 20:30:41 2008 +0100
@@ -13,7 +13,7 @@ module_param_named(debug,dvb_usb_dib0700
module_param_named(debug,dvb_usb_dib0700_debug, int, 0644);
MODULE_PARM_DESC(debug, "set debugging level (1=info,2=fw,4=fwdata,8=data (or-able))." DVB_USB_DEBUG_STATUS);
-static int dvb_usb_dib0700_ir_proto = 1;
+int dvb_usb_dib0700_ir_proto = 1;
module_param(dvb_usb_dib0700_ir_proto, int, 0644);
MODULE_PARM_DESC(dvb_usb_dib0700_ir_proto, "set ir protocol (0=NEC, 1=RC5 (default), 2=RC6).");
@@ -261,7 +261,7 @@ int dib0700_streaming_ctrl(struct dvb_us
return dib0700_ctrl_wr(adap->dev, b, 4);
}
-static int dib0700_rc_setup(struct dvb_usb_device *d)
+int dib0700_rc_setup(struct dvb_usb_device *d)
{
u8 rc_setup[3] = {REQUEST_SET_RC, dvb_usb_dib0700_ir_proto, 0};
int i = dib0700_ctrl_wr(d, rc_setup, 3);
diff -r 127f67dea087 linux/drivers/media/dvb/dvb-usb/dib0700_devices.c
--- a/linux/drivers/media/dvb/dvb-usb/dib0700_devices.c Tue Feb 26 20:43:56 2008 +0000
+++ b/linux/drivers/media/dvb/dvb-usb/dib0700_devices.c Sun Mar 02 20:30:41 2008 +0100
@@ -301,6 +301,9 @@ static int stk7700d_tuner_attach(struct
static u8 rc_request[] = { REQUEST_POLL_RC, 0 };
+/* Number of keypresses to ignore before start repeating */
+#define RC_REPEAT_DELAY 2
+
static int dib0700_rc_query(struct dvb_usb_device *d, u32 *event, int *state)
{
u8 key[4];
@@ -314,18 +317,67 @@ static int dib0700_rc_query(struct dvb_u
err("RC Query Failed");
return -1;
}
+
+ /* losing half of KEY_0 events from Philipps rc5 remotes.. */
if (key[0]==0 && key[1]==0 && key[2]==0 && key[3]==0) return 0;
- if (key[3-1]!=st->rc_toggle) {
+
+ /* info("%d: %2X %2X %2X %2X",dvb_usb_dib0700_ir_proto,(int)key[3-2],(int)key[3-3],(int)key[3-1],(int)key[3]); */
+
+ dib0700_rc_setup(d); /* reset ir sensor data to prevent false events */
+
+ switch (dvb_usb_dib0700_ir_proto) {
+ case 0: {
+ /* NEC protocol sends repeat code as 0 0 0 FF */
+ if ((key[3-2] == 0x00) && (key[3-3] == 0x00) &&
+ (key[3] == 0xFF)) {
+ st->rc_counter++;
+ if(st->rc_counter > RC_REPEAT_DELAY) {
+ *event = d->last_event;
+ *state = REMOTE_KEY_PRESSED;
+ st->rc_counter = RC_REPEAT_DELAY;
+ }
+ return 0;
+ }
for (i=0;i<d->props.rc_key_map_size; i++) {
if (keymap[i].custom == key[3-2] && keymap[i].data == key[3-3]) {
+ st->rc_counter = 0;
*event = keymap[i].event;
*state = REMOTE_KEY_PRESSED;
- st->rc_toggle=key[3-1];
+ d->last_event = keymap[i].event;
return 0;
}
}
- err("Unknown remote controller key : %2X %2X",(int)key[3-2],(int)key[3-3]);
- }
+ break;
+ }
+ default: {
+ /* RC-5 protocol changes toggle bit on new keypress */
+ for (i=0;i<d->props.rc_key_map_size; i++) {
+ if (keymap[i].custom == key[3-2] && keymap[i].data == key[3-3]) {
+ if((d->last_event == keymap[i].event) &&
+ (key[3-1] == st->rc_toggle)) {
+ st->rc_counter++;
+ /* prevents unwanted double hits */
+ if(st->rc_counter > RC_REPEAT_DELAY) {
+ *event = d->last_event;
+ *state = REMOTE_KEY_PRESSED;
+ st->rc_counter = RC_REPEAT_DELAY;
+ }
+
+ return 0;
+ }
+ st->rc_counter = 0;
+ *event = keymap[i].event;
+ *state = REMOTE_KEY_PRESSED;
+ st->rc_toggle = key[3-1];
+ d->last_event = keymap[i].event;
+ return 0;
+ }
+ }
+ break;
+ }
+ }
+ err("Unknown remote controller key: %2X %2X %2X %2X",(int)key[3-2],(int)key[3-3], (int)key[3-1],(int)key[3]);
+ d->last_event = 0;
return 0;
}
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