intc.h File Reference

#include <stdint.h>
#include <pbl/device.h>
#include <pbl/util/size.h>

Data Structures
struct	pbl_intc_ops
	Interrupt controller driver operations, called with interrupts locked. More...
struct	pbl_intc_line
	Runtime state of a line. More...
struct	pbl_intc
	An interrupt controller. More...
struct	pbl_irq_spec
	An interrupt line, as used by a consumer. More...

Macros
#define	PBL_INTC_STATE_DEFINE(sym, _num_irqs)
	Define the class state of interrupt controller sym, for the driver's define macro.
#define	PBL_INTC_INIT(sym, _name, _init, _parent, _ops)
	Initializer for the struct pbl_intc of controller sym.
#define	PBL_IRQ_SPEC(_intc, _hwirq, _type)   {.intc = (_intc), .hwirq = (_hwirq), .type = (_type)}
	Initializer for a struct pbl_irq_spec.
Trigger types
Physical trigger of a line, as wired on the board.
#define	PBL_IRQ_TYPE_EDGE_RISING   1U
	Rising edge.
#define	PBL_IRQ_TYPE_EDGE_FALLING   2U
	Falling edge.
#define	PBL_IRQ_TYPE_EDGE_BOTH   (PBL_IRQ_TYPE_EDGE_RISING | PBL_IRQ_TYPE_EDGE_FALLING)
	Both edges.
#define	PBL_IRQ_TYPE_LEVEL_HIGH   4U
	High level.
#define	PBL_IRQ_TYPE_LEVEL_LOW   8U
	Low level.

Typedefs
typedef void(*	pbl_intc_handler_t) (void *arg)
	Line handler, called in ISR context.

Functions
static bool	pbl_irq_spec_is_connected (const struct pbl_irq_spec *spec)
	Check whether an interrupt line is connected.
int	pbl_intc_request (const struct pbl_irq_spec *spec, pbl_intc_handler_t handler, void *arg)
	Install the handler of a line and set its trigger type.
int	pbl_intc_free (const struct pbl_irq_spec *spec)
	Disable a line and remove its handler.
int	pbl_intc_enable (const struct pbl_irq_spec *spec)
	Enable a requested line.
int	pbl_intc_disable (const struct pbl_irq_spec *spec)
	Disable a requested line.
void	pbl_intc_dispatch (const struct pbl_intc *intc, uint32_t hwirq)
	Run the handler of a pending line, for the controller driver.

Variables
const struct pbl_device_class	pbl_intc_class
	Class of the interrupt controllers.