Counter driver

HAL_COUNTER. More...

Enumerations
enum	cnt_int_pin
	Counter internal pin.

Functions
cnt_dev_t *	hal_cnt_open (int id, cnt_init_t *init)
	Open counter device. More...
void	hal_cnt_close (cnt_dev_t *dev)
	Close counter device. More...
int	hal_cnt_sync (cnt_dev_t *dev, uint32_t mask)
	Synchronize status registers manually. Will block until register finish update. More...
int	hal_cnt_intr_mask (cnt_dev_t *dev)
	Set interrupt mask. More...
int	hal_cnt_intr_unmask (cnt_dev_t *dev)
	Set interrupt unmask. More...
int	hal_cnt_pin_mux_en (int port, int pin, int en)
	Set pin mux. More...
int	hal_cnt_internal_din_pinmux (int inner_pin, int ext_port, int ext_pin)
	Set din pin mux. More...
int	hal_cnt_internal_dout_pinmux (int inner_pin, int ext_port, int ext_pin)
	Set dout pin mux. More...
int	hal_cnt_enable (cnt_dev_t *dev)
	Enable counter. More...
int	hal_cnt_disable (cnt_dev_t *dev)
	Disable counter. More...
uint32_t	hal_cnt_get_clk (cnt_dev_t *dev)
	Get counter clock frequency. More...
int	hal_cnt_pin_chk (int port, int pin)
	Check counter pinmux. More...
void	hal_cnt_set_handler (cnt_dev_t *dev, CNT_ISR_FUN fun, void *arg)
	Set ISR handler. More...

Detailed Description

HAL_COUNTER.

Function Documentation

hal_cnt_close()

void hal_cnt_close

(

cnt_dev_t *

dev

)

Close counter device.

Parameters

[in]

dev

Counter device struct

hal_cnt_disable()

int hal_cnt_disable

(

cnt_dev_t *

dev

)

Disable counter.

Parameters

[in]

dev

Counter device struct

Returns

See also

enum cnt_error for return code.

hal_cnt_enable()

int hal_cnt_enable

(

cnt_dev_t *

dev

)

Enable counter.

Parameters

[in]

dev

Counter device struct

Returns

See also

enum cnt_error for return code.

hal_cnt_get_clk()

uint32_t hal_cnt_get_clk

(

cnt_dev_t *

dev

)

Get counter clock frequency.

Parameters

[in]

dev

Counter device struct

Returns

Counter clock frequency, 0 if failed

hal_cnt_internal_din_pinmux()

int hal_cnt_internal_din_pinmux	(	int	inner_pin,
		int	ext_port,
		int	ext_pin
	)

Set din pin mux.

Parameters

[in]

inner_pin

internal pin id

See also

enum cnt_int_pin.

Parameters

[in]

ext_port

external port

See also

enum gpio_port

Parameters

[in]

ext_pin

external pin

See also

enum gpio_pin

Returns

See also

enum cnt_error for return code.

hal_cnt_internal_dout_pinmux()

int hal_cnt_internal_dout_pinmux	(	int	inner_pin,
		int	ext_port,
		int	ext_pin
	)

Set dout pin mux.

Parameters

[in]

inner_pin

internal pin id

See also

enum cnt_int_pin.

Parameters

[in]

ext_port

external port

See also

enum gpio_port

Parameters

[in]

ext_pin

external pin

See also

enum gpio_pin

Returns

See also

enum cnt_error for return code.

hal_cnt_intr_mask()

int hal_cnt_intr_mask

(

cnt_dev_t *

dev

)

Set interrupt mask.

Parameters

[in]

dev

Counter device struct

Returns

See also

enum cnt_error for return code.

hal_cnt_intr_unmask()

int hal_cnt_intr_unmask

(

cnt_dev_t *

dev

)

Set interrupt unmask.

Parameters

[in]

dev

Counter device struct

Returns

See also

enum cnt_error for return code.

hal_cnt_open()

cnt_dev_t* hal_cnt_open	(	int	id,
		cnt_init_t *	init
	)

Open counter device.

Parameters

[in]	id	Counter ID
[in]	init	init paramter,

See also

cnt_init_t

Returns

Counter device struct, NULL if failed

hal_cnt_pin_chk()

int hal_cnt_pin_chk	(	int	port,
		int	pin
	)

Check counter pinmux.

Parameters

[in]

port

port

See also

enum gpio_port

Parameters

[in]

pin

pin

See also

enum gpio_pin

Returns

See also

enum cnt_error for return code.

hal_cnt_pin_mux_en()

int hal_cnt_pin_mux_en	(	int	port,
		int	pin,
		int	en
	)

Set pin mux.

Parameters

[in]

port

port

See also

enum gpio_port

Parameters

[in]

pin

pin

See also

enum gpio_pin

Parameters

[in]

en

enable or disable pin

Returns

See also

enum cnt_error for return code.

hal_cnt_set_handler()

void hal_cnt_set_handler	(	cnt_dev_t *	dev,
		CNT_ISR_FUN	fun,
		void *	arg
	)

Set ISR handler.

Parameters

[in]	dev	Counter device struct.
[in]	fun	Callback function.
[in]	arg	Callback fucntion arguments.

Returns

See also

enum cnt_error for return code.

hal_cnt_sync()

int hal_cnt_sync	(	cnt_dev_t *	dev,
		uint32_t	mask
	)

Synchronize status registers manually. Will block until register finish update.

Parameters

[in]	dev	Counter device struct
[in]	mask	Register mask

Returns

See also

enum cnt_error for return code.