IRQ API Reference
IRQ
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typedef wm_hal_sw_irq_handle wm_drv_sw_irq_handle
IRQ callback type.
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typedef wm_hal_hw_irq_handle wm_drv_hw_irq_handle
IRQ callback type.
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int wm_drv_irq_attach_hw_vector(wm_irq_no_t irq, wm_drv_hw_irq_handle handle)
Attach hw interrupt vector with callback and replace sw vector. For the registered functions, please add the ATTRIBUTE_ISR attribute and add csi_kernel_intrpt_enter at the beginning and csi_kernel_intrpt_exit at the end.
Note
If hw vector attached, sw vector will be invalidated
- Parameters:
irq – [in] irq number
handle – [in] interrupt callback
- Returns:
WM_ERR_SUCCESS: succeed
others: failed
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int wm_drv_irq_detach_hw_vector(wm_irq_no_t irq)
Detach hw interrupt vector.
- Parameters:
irq – [in] irq number
- Returns:
WM_ERR_SUCCESS: succeed
others: failed
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int wm_drv_irq_attach_sw_vector(wm_irq_no_t irq, wm_drv_sw_irq_handle handle, void *arg)
Attach sw interrupt with callback.
- Parameters:
irq – [in] irq number
handle – [in] interrupt callback
arg – [in] user data
- Returns:
WM_ERR_SUCCESS: succeed
others: failed
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int wm_drv_irq_detach_sw_vector(wm_irq_no_t irq)
Detach sw interrupt vector.
- Parameters:
irq – [in] irq number
- Returns:
WM_ERR_SUCCESS: succeed
others: failed
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uint32_t wm_drv_irq_save(void)
Disable global irq and save the previous status.
- Returns:
last status
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void wm_drv_irq_restore(uint32_t irq_state)
Enable global irq by the previous status.
- Parameters:
irq_state – [in] previous status by wm_drv_irq_save
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int wm_drv_irq_enable(wm_irq_no_t irq)
Enable interrupt.
- Parameters:
irq – [in] irq number
- Returns:
WM_ERR_SUCCESS: succeed
others: failed
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int wm_drv_irq_disable(wm_irq_no_t irq)
Disable interrupt.
- Parameters:
irq – [in] irq number
- Returns:
WM_ERR_SUCCESS: succeed
others: failed
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int wm_drv_irq_set_pending(wm_irq_no_t irq)
Set interrupt with pending.
- Parameters:
irq – [in] irq number
- Returns:
WM_ERR_SUCCESS: succeed
others: failed
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int wm_drv_irq_clear_pending(wm_irq_no_t irq)
Clear interrupt pending status.
- Parameters:
irq – [in] irq number
- Returns:
WM_ERR_SUCCESS: succeed
others: failed
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int wm_drv_irq_set_wakeup(wm_irq_no_t irq)
Set wakeup interrupt.
- Parameters:
irq – [in] irq number
- Returns:
WM_ERR_SUCCESS: succeed
others: failed
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int wm_drv_irq_clear_wakeup(wm_irq_no_t irq)
Clear wakeup interrupt.
- Parameters:
irq – [in] irq number
- Returns:
WM_ERR_SUCCESS: succeed
others: failed