Core - XEOS: API Reference [ XS-Labs ]

XEOS_IRQ_AddIRQHandler Top

Installs a handler function for an IRQ line

bool XEOS_IRQ_AddIRQHandler( XEOS_HAL_PIC_IRQ irq, XEOS_IRQ_IRQHandler handler );

Discussion

Note that the number of handlers for an IRQ line is limited. If the maximum number of handlers is reached, the handler won't be installed and the function will return false.

Parameters

• irq
  The IRQ line
• handler
  The IRQ handler function

Return value

True if the handler was installed, otherwise false

XEOS_IRQ_ExecuteIRQHandlers Top

Executes all installed handlers for an IRQ line

void XEOS_IRQ_ExecuteIRQHandlers( XEOS_HAL_PIC_IRQ irq, XEOS_HAL_CPU_Registers *registers );

Parameters

• irq
  The IRQ line
• registers
  The processor registers

XEOS_IRQ_Keyboard Top

IRQ handler for the keyboard (IRQ1)

void XEOS_IRQ_Keyboard( XEOS_HAL_PIC_IRQ irq, XEOS_HAL_CPU_Registers *registers );

Parameters

• irq
  The IRQ line
• registers
  The processor registers

XEOS_IRQ_RealTimeClock Top

IRQ handler for the real time clock (IRQ8)

void XEOS_IRQ_RealTimeClock( XEOS_HAL_PIC_IRQ irq, XEOS_HAL_CPU_Registers *registers );

Parameters

• irq
  The IRQ line
• registers
  The processor registers

XEOS_IRQ_RemoveIRQHandler Top

Removes a handler function for an IRQ line

void XEOS_IRQ_RemoveIRQHandler( XEOS_HAL_PIC_IRQ irq, XEOS_IRQ_IRQHandler handler );

Parameters

• irq
  The IRQ line
• handler
  The IRQ handler function

XEOS_IRQ_SystemTimer Top

IRQ handler for the system timer (IRQ0)

void XEOS_IRQ_SystemTimer( XEOS_HAL_PIC_IRQ irq, XEOS_HAL_CPU_Registers *registers );

Parameters

• irq
  The IRQ line
• registers
  The processor registers

XEOS_IRQ_IRQHandler Top

Handler function for an IRQ

typedef void ( *XEOS_IRQ_IRQHandler )( XEOS_HAL_PIC_IRQ irq, XEOS_HAL_CPU_Registers *registers );

Parameters

• irq
  The IRQ line
• registers
  The processor registers

__XEOS_IRQ_H__ Top

#define __XEOS_IRQ_H__