Backlight_Lightup_Increase_in_Notifications_260_v1.pbp

; This patch increases backlight light-up time
; from 3 to 6 seconds (by default),
; but only for incoming notifications.
; Backlight time for other events (button press, shake...)
; will remain 3 seconds.
;
; PLEASE NOTE that backlight is very battery-hungry!
; So this patch might noticeable decrease battery uptime.
;
; Thanks to Suzanne Schiller for the idea.
#ver 260

;@notification_backlight_timeout_ms val
; This option controls backlight timeout for notifications.
; Value is in milliseconds, i.e. 6000 ms = 6 seconds.
; Stock default value is 3 seconds.
; Maximum possible is 65535 ms (65 seconds)
#default notification_backlight_timeout_ms 6000

; in the end of notifications_handle_new_notification:
95 f8 55 32 3b b1 0d 48 ?4
0d 48 d4 f8 01 10 ?4 ?4 18 b1 ?4 ?4
@ ?4 bd e8 70 40 04 48 ?4
{
	; was: BL light_enable_with_timeout
	BL my_light_enable_with_bigger_timeout
}

10 b5 06 4c e0 68 ?4 {
	proc light_timer_cb
}
2d e9 f7 4f 83 46 0c 46 {
	proc new_timer_start
}
10 b5 ?4 04 46 90 b9 {
	proc is_backlight_enabled
}

; for light_timer_id: in data block of light_do_action proc
; it is a memory cell storing address of light state struct, timer id is it + 4
03 20 ?4 e0 68 bd e8 10 40 ?4 00 bf @ ?4
{
	; remember 4-bytes value
	val light_timer_state_val
}

; and append our code
{
	proc my_light_enable_with_bigger_timeout

	PUSH {LR}

	BL is_backlight_enabled
	CBZ R0, ret

	; enable backlight
	MOV R0, 1 ; action: turn on
	BL light_timer_cb

	; and schedule backlight off in 6 seconds (or what user chose):
	LDR R0, light_timer_id
	LDR R0, [R0]
	MOV.W R1, ${notification_backlight_timeout_ms} ; delay
	LDR R2, light_timer_cb_addr
	MOV R3, 3 ; action: fade out
	BL new_timer_start

	ret:
	POP {PC}

	light_timer_id:
	DCD light_timer_state_val+4
	light_timer_cb_addr:
	DCD light_timer_cb+1
}