forked from mirrors/linux
7d0003da62
Declaring the struct packed here is mostly harmless, but gives a bad example for people to copy. As the struct is packed and aligned manually, let's just drop the attribute. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
72 lines
1.7 KiB
C
72 lines
1.7 KiB
C
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
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#ifndef _LINUX_VIRTIO_GPIO_H
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#define _LINUX_VIRTIO_GPIO_H
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#include <linux/types.h>
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/* Virtio GPIO Feature bits */
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#define VIRTIO_GPIO_F_IRQ 0
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/* Virtio GPIO request types */
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#define VIRTIO_GPIO_MSG_GET_NAMES 0x0001
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#define VIRTIO_GPIO_MSG_GET_DIRECTION 0x0002
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#define VIRTIO_GPIO_MSG_SET_DIRECTION 0x0003
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#define VIRTIO_GPIO_MSG_GET_VALUE 0x0004
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#define VIRTIO_GPIO_MSG_SET_VALUE 0x0005
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#define VIRTIO_GPIO_MSG_IRQ_TYPE 0x0006
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/* Possible values of the status field */
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#define VIRTIO_GPIO_STATUS_OK 0x0
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#define VIRTIO_GPIO_STATUS_ERR 0x1
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/* Direction types */
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#define VIRTIO_GPIO_DIRECTION_NONE 0x00
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#define VIRTIO_GPIO_DIRECTION_OUT 0x01
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#define VIRTIO_GPIO_DIRECTION_IN 0x02
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/* Virtio GPIO IRQ types */
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#define VIRTIO_GPIO_IRQ_TYPE_NONE 0x00
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#define VIRTIO_GPIO_IRQ_TYPE_EDGE_RISING 0x01
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#define VIRTIO_GPIO_IRQ_TYPE_EDGE_FALLING 0x02
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#define VIRTIO_GPIO_IRQ_TYPE_EDGE_BOTH 0x03
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#define VIRTIO_GPIO_IRQ_TYPE_LEVEL_HIGH 0x04
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#define VIRTIO_GPIO_IRQ_TYPE_LEVEL_LOW 0x08
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struct virtio_gpio_config {
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__le16 ngpio;
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__u8 padding[2];
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__le32 gpio_names_size;
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};
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/* Virtio GPIO Request / Response */
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struct virtio_gpio_request {
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__le16 type;
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__le16 gpio;
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__le32 value;
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};
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struct virtio_gpio_response {
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__u8 status;
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__u8 value;
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};
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struct virtio_gpio_response_get_names {
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__u8 status;
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__u8 value[];
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};
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/* Virtio GPIO IRQ Request / Response */
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struct virtio_gpio_irq_request {
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__le16 gpio;
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};
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struct virtio_gpio_irq_response {
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__u8 status;
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};
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/* Possible values of the interrupt status field */
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#define VIRTIO_GPIO_IRQ_STATUS_INVALID 0x0
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#define VIRTIO_GPIO_IRQ_STATUS_VALID 0x1
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#endif /* _LINUX_VIRTIO_GPIO_H */
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