diff options
| author | Simon Glass <sjg@chromium.org> | 2020-07-07 13:11:41 -0600 |
|---|---|---|
| committer | Bin Meng <bmeng.cn@gmail.com> | 2020-07-17 14:32:24 +0800 |
| commit | f4955137f5f15e615376cf38559414a9b53e3d55 (patch) | |
| tree | 699167d9e3cc6cae0fae4a0ddeb4b335c05786aa /include/irq.h | |
| parent | 2715b3623c08bf1ad2dfe6076ad86c24e3138016 (diff) | |
| download | u-boot-f4955137f5f15e615376cf38559414a9b53e3d55.tar.gz | |
irq: Add a method to convert an interrupt to ACPI
When generating ACPI tables we need to convert IRQs in U-Boot to the ACPI
structures required by ACPI. This is a SoC-specific conversion and cannot
be handled by generic code, so add a new IRQ method to do the conversion.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Diffstat (limited to 'include/irq.h')
| -rw-r--r-- | include/irq.h | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/include/irq.h b/include/irq.h index b71afe9bee9..8527e4dd797 100644 --- a/include/irq.h +++ b/include/irq.h @@ -8,6 +8,9 @@ #ifndef __irq_H #define __irq_H +struct acpi_irq; +struct ofnode_phandle_args; + /* * Interrupt controller types available. You can find a particular one with * irq_first_device_type() @@ -24,10 +27,12 @@ enum irq_dev_t { * * @dev: IRQ device that handles this irq * @id: ID to identify this irq with the device + * @flags: Flags associated with this interrupt (IRQ_TYPE_...) */ struct irq { struct udevice *dev; ulong id; + ulong flags; }; /** @@ -119,11 +124,37 @@ struct irq_ops { * @return 0 if OK, or a negative error code. */ int (*free)(struct irq *irq); + +#if CONFIG_IS_ENABLED(ACPIGEN) + /** + * get_acpi() - Get the ACPI info for an irq + * + * This converts a irq to an ACPI structure for adding to the ACPI + * tables. + * + * @irq: irq to convert + * @acpi_irq: Output ACPI interrupt information + * @return ACPI pin number or -ve on error + */ + int (*get_acpi)(const struct irq *irq, struct acpi_irq *acpi_irq); +#endif }; #define irq_get_ops(dev) ((struct irq_ops *)(dev)->driver->ops) /** + * irq_is_valid() - Check if an IRQ is valid + * + * @irq: IRQ description containing device and ID, e.g. previously + * returned by irq_get_by_index() + * @return true if valid, false if not + */ +static inline bool irq_is_valid(const struct irq *irq) +{ + return irq->dev != NULL; +} + +/** * irq_route_pmc_gpio_gpe() - Get the GPIO for an event * * @dev: IRQ device @@ -223,4 +254,16 @@ int irq_free(struct irq *irq); */ int irq_first_device_type(enum irq_dev_t type, struct udevice **devp); +/** + * irq_get_acpi() - Get the ACPI info for an irq + * + * This converts a irq to an ACPI structure for adding to the ACPI + * tables. + * + * @irq: irq to convert + * @acpi_irq: Output ACPI interrupt information + * @return ACPI pin number or -ve on error + */ +int irq_get_acpi(const struct irq *irq, struct acpi_irq *acpi_irq); + #endif |