| #ifndef _LINUX_VIRTWL_H |
| #define _LINUX_VIRTWL_H |
| |
| #include <asm/ioctl.h> |
| #include <linux/types.h> |
| |
| #define VIRTWL_SEND_MAX_ALLOCS 28 |
| |
| #define VIRTWL_IOCTL_BASE 'w' |
| #define VIRTWL_IO(nr) _IO(VIRTWL_IOCTL_BASE, nr) |
| #define VIRTWL_IOR(nr, type) _IOR(VIRTWL_IOCTL_BASE, nr, type) |
| #define VIRTWL_IOW(nr, type) _IOW(VIRTWL_IOCTL_BASE, nr, type) |
| #define VIRTWL_IOWR(nr, type) _IOWR(VIRTWL_IOCTL_BASE, nr, type) |
| |
| enum virtwl_ioctl_new_type { |
| VIRTWL_IOCTL_NEW_CTX, /* open a new wayland connection context */ |
| VIRTWL_IOCTL_NEW_ALLOC, /* create a new virtwl shm allocation */ |
| /* create a new virtwl pipe that is readable via the returned fd */ |
| VIRTWL_IOCTL_NEW_PIPE_READ, |
| /* create a new virtwl pipe that is writable via the returned fd */ |
| VIRTWL_IOCTL_NEW_PIPE_WRITE, |
| /* create a new virtwl dmabuf that is writable via the returned fd */ |
| VIRTWL_IOCTL_NEW_DMABUF, |
| }; |
| |
| struct virtwl_ioctl_new { |
| __u32 type; /* VIRTWL_IOCTL_NEW_* */ |
| int fd; /* return fd */ |
| __u32 flags; /* currently always 0 */ |
| union { |
| /* size of allocation if type == VIRTWL_IOCTL_NEW_ALLOC */ |
| __u32 size; |
| /* buffer description if type == VIRTWL_IOCTL_NEW_DMABUF */ |
| struct { |
| __u32 width; /* width in pixels */ |
| __u32 height; /* height in pixels */ |
| __u32 format; /* fourcc format */ |
| __u32 stride0; /* return stride0 */ |
| __u32 stride1; /* return stride1 */ |
| __u32 stride2; /* return stride2 */ |
| __u32 offset0; /* return offset0 */ |
| __u32 offset1; /* return offset1 */ |
| __u32 offset2; /* return offset2 */ |
| } dmabuf; |
| }; |
| }; |
| |
| struct virtwl_ioctl_txn { |
| int fds[VIRTWL_SEND_MAX_ALLOCS]; |
| __u32 len; |
| __u8 data[0]; |
| }; |
| |
| struct virtwl_ioctl_dmabuf_sync { |
| __u32 flags; /* synchronization flags (see dma-buf.h) */ |
| }; |
| |
| #define VIRTWL_IOCTL_NEW VIRTWL_IOWR(0x00, struct virtwl_ioctl_new) |
| #define VIRTWL_IOCTL_SEND VIRTWL_IOR(0x01, struct virtwl_ioctl_txn) |
| #define VIRTWL_IOCTL_RECV VIRTWL_IOW(0x02, struct virtwl_ioctl_txn) |
| #define VIRTWL_IOCTL_DMABUF_SYNC VIRTWL_IOR(0x03, \ |
| struct virtwl_ioctl_dmabuf_sync) |
| |
| #endif /* _LINUX_VIRTWL_H */ |