Function

This section provides high level APIs to upper layer. More...

Overview

This section provides high level APIs to upper layer.

Functions
int	mtk_os_hal_gpt_start (enum gpt_num timer_id)
	Start GPT timer count. More...
int	mtk_os_hal_gpt_stop (enum gpt_num timer_id)
	Stop GPT timer count. More...
unsigned int	mtk_os_hal_gpt_get_cur_count (enum gpt_num timer_id)
	Get GPT timer counter value. More...
int	mtk_os_hal_gpt_restart (enum gpt_num timer_id)
	Restart GPT timer count. More...
int	mtk_os_hal_gpt_reset_timer (enum gpt_num timer_id, unsigned int count_val, bool auto_repeat)
	Reset GPT timer mode (only works for interrupt-based timer). More...
int	mtk_os_hal_gpt_config (enum gpt_num timer_id, unsigned char speed_32us, struct os_gpt_int *gpt_int)
	Config GPT timer. More...
void	mtk_os_hal_gpt_register_irq (void)
	Register GPT irq. More...
void	mtk_os_hal_gpt_init (void)
	Init GPT device. More...

Function Documentation

int mtk_os_hal_gpt_start

(

enum gpt_num

timer_id

)

Start GPT timer count.

Parameters

[in]

timer_id

: GPT timer id

Returns

0 means start successfully.
negative means start failed.

int mtk_os_hal_gpt_stop

(

enum gpt_num

timer_id

)

Stop GPT timer count.

Parameters

[in]

timer_id

: GPT timer id

Returns

0 means stop successfully.
negative means stop failed.

unsigned int mtk_os_hal_gpt_get_cur_count

(

enum gpt_num

timer_id

)

Get GPT timer counter value.

Parameters

[in]

timer_id

: GPT timer id

Returns

32bit counter value.

int mtk_os_hal_gpt_restart

(

enum gpt_num

timer_id

)

Restart GPT timer count.

Parameters

[in]

timer_id

: GPT timer id

Returns

0 means restart successfully.
negative means restart failed.

int mtk_os_hal_gpt_reset_timer	(	enum gpt_num	timer_id,
		unsigned int	count_val,
		bool	auto_repeat
	)

Reset GPT timer mode (only works for interrupt-based timer).

Parameters

[in]	timer_id	: GPT timer id
[in]	count_val	: GPT timeout count value
[in]	auto_repeat	: open repeat mode (only works for GPT0 & GPT1)

Returns

0 means reset timer successfully.
negative means reset failed.

int mtk_os_hal_gpt_config	(	enum gpt_num	timer_id,
		unsigned char	speed_32us,
		struct os_gpt_int *	gpt_int
	)

Config GPT timer.

Parameters

[in]	timer_id	: GPT timer id
[in]	speed_32us	: for GPT0, GPT1 & GPT2, it is used to choose 32kHz(= 1) or 1kHz(= 0); for GPT4, it is used to choose bus_clk(= 1) or half of bus_clk(= 0); and for GPT3, it has no influence.
[in]	gpt_int	: a pointer of struct os_gpt_int to set interrupt callback (only works for GPT0, GPT1 & GPT3)

Returns

0 means config successfully.
negative means config failed.

void mtk_os_hal_gpt_register_irq

(

void

)

Register GPT irq.

Called only in mtk_os_hal_gpt_init() and low power scenario.

Parameters

None

Returns

None

void mtk_os_hal_gpt_init

(

void

)

Init GPT device.

Internal assurance that it will only be executed only one time effectively.

Parameters

None

Returns

None