riscvrx_irq.c File Reference

#include "no_os_error.h"
#include "no_os_irq.h"
#include "no_os_alloc.h"
#include "riscvrx_irq.h"

Include dependency graph for riscvrx_irq.c:

Functions
int32_t	latt_irq_ctrl_init (struct no_os_irq_ctrl_desc **desc, const struct no_os_irq_init_param *param)
	Initialize the IRQ interrupts.
int32_t	latt_trigger_level_set (struct no_os_irq_ctrl_desc *desc, uint32_t irq_id, enum no_os_irq_trig_level level)
	Unused.
int32_t	latt_irq_set_priority (struct no_os_irq_ctrl_desc *desc, uint32_t irq_id, uint32_t priority_level)
	Set a priority level for an interrupt.
int32_t	latt_irq_global_enable (struct no_os_irq_ctrl_desc *desc)
	Enable global interrupts.
int32_t	latt_irq_global_disable (struct no_os_irq_ctrl_desc *desc)
	Disable global interrupts.
int32_t	latt_irq_enable (struct no_os_irq_ctrl_desc *desc, uint32_t irq_id)
	Enable specific interrupt.
int32_t	latt_irq_disable (struct no_os_irq_ctrl_desc *desc, uint32_t irq_id)
	Disable specific interrupt.
int32_t	latt_irq_register_callback (struct no_os_irq_ctrl_desc *desc, uint32_t irq_id, struct no_os_callback_desc *callback_desc)
	Register a callback to handle the irq events.
int32_t	latt_irq_unregister_callback (struct no_os_irq_ctrl_desc *desc, uint32_t irq_id, struct no_os_callback_desc *cb)
	Unregisters a generic IRQ handling function.
int32_t	latt_irq_ctrl_remove (struct no_os_irq_ctrl_desc *desc)
	Free the resources allocated by no_os_irq_ctrl_init().

Variables
struct interrupt_entry	plic_int_table []
const struct no_os_irq_platform_ops	latt_irq_ops
	Lattice platform specific IRQ platform ops structure.

Function Documentation

latt_irq_ctrl_init()

int32_t latt_irq_ctrl_init	(	struct no_os_irq_ctrl_desc **	desc,
		const struct no_os_irq_init_param *	param )

Initialize the IRQ interrupts.

Parameters

desc	- The IRQ controller descriptor.
param	- The structure that contains the IRQ parameters.

Returns

0 in case of success, -1 otherwise.

latt_irq_ctrl_remove()

int32_t latt_irq_ctrl_remove

(

struct no_os_irq_ctrl_desc *

desc

)

Free the resources allocated by no_os_irq_ctrl_init().

Parameters

desc	- The IRQ control descriptor.

Returns

0 in case of success, -1 otherwise.

latt_irq_disable()

int32_t latt_irq_disable	(	struct no_os_irq_ctrl_desc *	desc,
		uint32_t	irq_id )

Disable specific interrupt.

Parameters

desc	- The IRQ controller descriptor.
irq_id	- Interrupt identifier.

Returns

0 in case of success, -1 otherwise.

latt_irq_enable()

int32_t latt_irq_enable	(	struct no_os_irq_ctrl_desc *	desc,
		uint32_t	irq_id )

Enable specific interrupt.

Parameters

desc	- The IRQ controller descriptor.
irq_id	- Interrupt identifier.

Returns

0 in case of success, -1 otherwise.

latt_irq_global_disable()

int32_t latt_irq_global_disable

(

struct no_os_irq_ctrl_desc *

desc

)

Disable global interrupts.

latt_irq_global_enable()

int32_t latt_irq_global_enable

(

struct no_os_irq_ctrl_desc *

desc

)

Enable global interrupts.

latt_irq_register_callback()

int32_t latt_irq_register_callback	(	struct no_os_irq_ctrl_desc *	desc,
		uint32_t	irq_id,
		struct no_os_callback_desc *	callback_desc )

Register a callback to handle the irq events.

Parameters

desc	- The IRQ controller descriptor.
irq_id	- Interrupt identifier.
callback_desc	- Callback descriptor

Returns

0 in case of success, -1 otherwise.

latt_irq_set_priority()

int32_t latt_irq_set_priority	(	struct no_os_irq_ctrl_desc *	desc,
		uint32_t	irq_id,
		uint32_t	priority_level )

Set a priority level for an interrupt.

Parameters

desc	- Interrupt controller descriptor.
irq_id	- The interrupt vector entry id of the peripheral.
priority_level	- The interrupt priority level.

Returns

0 if successful, error code otherwise.

latt_irq_unregister_callback()

int32_t latt_irq_unregister_callback	(	struct no_os_irq_ctrl_desc *	desc,
		uint32_t	irq_id,
		struct no_os_callback_desc *	cb )

Unregisters a generic IRQ handling function.

Parameters

desc	- The IRQ controller descriptor.
irq_id	- Interrupt identifier.
cb	- Callback descriptor.

Returns

0 in case of success, -1 otherwise.

latt_trigger_level_set()

int32_t latt_trigger_level_set	(	struct no_os_irq_ctrl_desc *	desc,
		uint32_t	irq_id,
		enum no_os_irq_trig_level	level )

Unused.

Parameters

desc	- Irq descriptor.
irq_id	- The interrupt vector entry id of the peripheral.
level	- The trigger condition.

Returns

-ENOSYS

Variable Documentation

latt_irq_ops

const struct no_os_irq_platform_ops latt_irq_ops

Initial value:

= {
    .set_priority = &latt_irq_set_priority,
    .init = &latt_irq_ctrl_init,
    .register_callback = &latt_irq_register_callback,
    .unregister_callback = &latt_irq_unregister_callback,
    .global_enable = &latt_irq_global_enable,
    .global_disable = &latt_irq_global_disable,
    .trigger_level_set = &latt_trigger_level_set,
    .enable = &latt_irq_enable,
    .disable = &latt_irq_disable,
    .remove = &latt_irq_ctrl_remove
}

Lattice platform specific IRQ platform ops structure.

Lattice specific IRQ platform ops structure.

plic_int_table

struct interrupt_entry plic_int_table[]

extern