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#include <cstdint>
#include <generic/vfs/vfs.hpp>
#include <etc/list.hpp>
#pragma once
#define DEVFS_PACKET_CREATE_DEV 1
#define DEVFS_PACKET_READ_READRING 2
#define DEVFS_PACKET_WRITE_READRING 3
#define DEVFS_PACKET_READ_WRITERING 4
#define DEVFS_PACKET_WRITE_WRITERING 5
#define DEVFS_PACKET_CREATE_IOCTL 6
#define DEVFS_PACKET_SIZE_IOCTL 7
#define DEVFS_PACKET_IOCTL 8
#define DEVFS_ENABLE_PIPE 9
#define DEVFS_SETUP_MMAP 10
#define DEVFS_PACKET_CREATE_PIPE_DEV 11
#define DEVFS_PACKET_ISATTY 12
#define DEVFS_PACKET_SETUPTTY 13
#define DEVFS_GETSLAVE_BY_MASTER 14
#define DEVFS_PACKET_SETUP_RING_SIZE 15
struct winsize {
unsigned short ws_row;
unsigned short ws_col;
unsigned short ws_xpixel;
/* unused */
unsigned short ws_ypixel;
/* unused */
};
#define TCGETS 0x5401
#define TCSETS 0x5402
#define TIOCGWINSZ 0x5413
#define TIOCSWINSZ 0x5414
namespace vfs {
typedef struct {
std::uint64_t is_pipe : 1;
std::uint64_t is_pipe_rw : 1;
} __attribute__((packed)) devfs_pipe_p_t;
typedef struct {
union {
struct {
std::uint8_t request;
std::uint8_t* cycle;
std::uint32_t* queue;
std::uint32_t size;
std::uint64_t value;
};
struct {
std::uint8_t request;
std::uint64_t ioctlreq;
std::uint64_t arg;
} ioctl;
struct {
std::uint8_t request;
std::uint32_t writereg;
std::uint32_t readreg;
std::uint32_t size;
std::uint64_t pointer;
} create_ioctl;
struct {
std::uint8_t request;
std::uint8_t pipe_target;
std::uint64_t pipe_pointer;
} enable_pipe;
struct {
std::uint8_t request;
std::uint64_t dma_addr;
std::uint64_t size;
std::uint64_t flags;
} setup_mmap;
};
} __attribute__((packed)) devfs_packet_t; /* User-Kernel interaction packet */
typedef struct {
std::uint32_t read_req;
std::uint32_t write_req;
std::uint32_t size;
void* pointer_to_struct;
} __attribute__((packed)) devfs_ioctl_packet_t;
typedef struct devfs_node {
devfs_pipe_p_t open_flags;
union {
struct {
Lists::Ring* readring;
Lists::Ring* writering;
};
struct {
pipe* readpipe;
pipe* writepipe;
};
};
devfs_ioctl_packet_t ioctls[32];
std::uint64_t pipe0;
std::uint64_t mmap_base;
std::uint64_t mmap_size;
std::uint64_t mmap_flags;
std::int32_t dev_num;
std::int8_t is_tty;
std::int64_t (*read)(userspace_fd_t* fd, void* buffer, std::uint64_t count);
std::int64_t (*write)(userspace_fd_t* fd, void* buffer, std::uint64_t size);
std::int64_t (*slave_write)(userspace_fd_t* fd, void* buffer, std::uint64_t size);
std::int32_t (*ioctl)(userspace_fd_t* fd, unsigned long req, void *arg, int *res);
std::int32_t (*open)(userspace_fd_t* fd, char* path);
int mode;
termios_t* term_flags;
struct devfs_node* next;
char masterpath[256];
char slavepath[256];
} devfs_node_t;
static_assert(sizeof(devfs_node_t) < 4096,"devfs_node_t is higher than fucking page size");
class devfs {
public:
static void mount(vfs_node_t* node);
static std::int64_t send_packet(char* path,devfs_packet_t* packet);
};
};
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