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TIMER API 参考

TIMER

struct wm_drv_timer_cfg_t

TIMER configuration.

Public Members

wm_drv_timer_unit unit: timer accuracy

uint32_t period: timeout period

bool auto_reload: auto reload

typedef wm_hal_timer_unit_t wm_drv_timer_unit: TIMER unit type.

typedef void (*wm_drv_timer_callback_t)(void *arg): TIMER callback type.

wm_device_t *wm_drv_timer_init(char *dev_name)

Init timer.

参数:

dev_name – [in] device name, like “timer0”,”timer1”…

返回:

device handle, use
- wm_device_t
NULL: failed

int wm_drv_timer_deinit(wm_device_t *dev)

Deinit timer.

参数:

dev – [in] device handle, use

wm_device_t

返回:

WM_ERR_SUCCESS: succeed
others: failed

int wm_drv_timer_start(wm_device_t *dev, wm_drv_timer_cfg_t timer_cfg)

Start timer.

参数:

dev – [in] device handle, use
- wm_device_t
timer_cfg – [in] timer cfg, use
- wm_drv_timer_cfg_t

返回:

WM_ERR_SUCCESS: succeed
others: failed

int wm_drv_timer_stop(wm_device_t *dev)

Stop timer.

参数:

dev – [in] device handle, use

wm_device_t

返回:

WM_ERR_SUCCESS: succeed
others: failed

int wm_drv_timer_set_period(wm_device_t *dev, uint32_t period)

Set timer period. Timer will restart for this.

参数:

dev – [in] device handle, use
- wm_device_t
period – [in] timer period

返回:

WM_ERR_SUCCESS: succeed
others: failed

int wm_drv_timer_set_auto_reload(wm_device_t *dev, bool auto_reload)

Set timer autoreload. Timer will restart for this.

参数:

dev – [in] device handle, use
- wm_device_t
auto_reload – [in] timer autoreload

返回:

WM_ERR_SUCCESS: succeed
others: failed

int wm_drv_timer_get_counter(wm_device_t *dev, uint32_t *counter)

Get timer counter.

参数:

dev – [in] device handle, use
- wm_device_t
counter – [out] timer counter

返回:

WM_ERR_SUCCESS: succeed
others: failed

int wm_drv_timer_register_callback(wm_device_t *dev, wm_drv_timer_callback_t timer_callback, void *arg)

Register timer isr.

参数:

dev – [in] device handle, use
- wm_device_t
timer_callback – [in] timer isr handle, use
- wm_drv_timer_callback_t
arg – [in] private data

返回:

WM_ERR_SUCCESS: succeed
others: failed

int wm_drv_timer_unregister_callback(wm_device_t *dev)

Unregister timer isr.

参数:

dev – [in] device handle, use

wm_device_t

返回:

WM_ERR_SUCCESS: succeed
others: failed