diff options
Diffstat (limited to 'sw/z80/kernel/include')
| -rw-r--r-- | sw/z80/kernel/include/devices.h | 15 | ||||
| -rw-r--r-- | sw/z80/kernel/include/errno.h | 35 | ||||
| -rw-r--r-- | sw/z80/kernel/include/fs/dev.h | 29 | ||||
| -rw-r--r-- | sw/z80/kernel/include/fs/dirent.h | 17 | ||||
| -rw-r--r-- | sw/z80/kernel/include/fs/fd.h | 102 | ||||
| -rw-r--r-- | sw/z80/kernel/include/fs/fdop.h | 140 | ||||
| -rw-r--r-- | sw/z80/kernel/include/fs/fs.h | 63 | ||||
| -rw-r--r-- | sw/z80/kernel/include/fs/iter.h | 17 | ||||
| -rw-r--r-- | sw/z80/kernel/include/fs/users.h | 21 | ||||
| -rw-r--r-- | sw/z80/kernel/include/memory.h | 50 | ||||
| -rw-r--r-- | sw/z80/kernel/include/process.h | 43 | ||||
| -rw-r--r-- | sw/z80/kernel/include/sio.h | 43 | ||||
| -rw-r--r-- | sw/z80/kernel/include/stat.h | 24 | ||||
| -rw-r--r-- | sw/z80/kernel/include/types.h | 62 |
14 files changed, 0 insertions, 661 deletions
diff --git a/sw/z80/kernel/include/devices.h b/sw/z80/kernel/include/devices.h deleted file mode 100644 index a846f9b..0000000 --- a/sw/z80/kernel/include/devices.h +++ /dev/null @@ -1,15 +0,0 @@ -#ifndef __DEVICES_H__ -#define __DEVICES_H__ - -#define ADDR_DEV_ROM_L 0x0000 -#define ADDR_DEV_ROM_H 0x2000 - -#define ADDR_DEV_USART 0x4000 -#define ADDR_DEV_CTC 0x4100 -#define ADDR_DEV_PIO 0x4200 - -#define ADDR_DEV_MMU - -#define ADDR_DEV_RAM 0x8000 - -#endif diff --git a/sw/z80/kernel/include/errno.h b/sw/z80/kernel/include/errno.h deleted file mode 100644 index 7632269..0000000 --- a/sw/z80/kernel/include/errno.h +++ /dev/null @@ -1,35 +0,0 @@ -#ifndef ERRNO_H -#define ERRNO_H - -extern int errno; - -#define EPERM 1 /* Operation not permitted */ -#define ENOENT 2 /* No such file or directory */ -#define ESRCH 3 /* No such process */ -#define EINTR 4 /* Interrupted system call */ -#define EIO 5 /* Input/output error */ -#define ENXIO 6 /* Device not configured */ -#define E2BIG 7 /* Argument list too long */ -#define ENOEXEC 8 /* Exec format error */ -#define EBADF 9 /* Bad file descriptor */ -#define ECHILD 10 /* No child processes */ -#define EDEADLK 11 /* Resource deadlock avoided */ - -#define ENOMEM 12 /* Cannot allocate memory */ -#define EACCES 13 /* Permission denied */ -#define EFAULT 14 /* Bad address */ - -#define ENOTBLK 15 /* Block device required */ -#define EBUSY 16 /* Device busy */ -#define EEXIST 17 /* File exists */ - -#define EXDEV 18 /* Cross-device link */ -#define ENODEV 19 /* Operation not supported by device */ -#define ENOTDIR 20 /* Not a directory */ -#define EISDIR 21 /* Is a directory */ -#define EINVAL 22 /* Invalid argument */ -#define ENFILE 23 /* Too many open files in system */ -#define EMFILE 24 /* Too many open files */ -#define ENOTTY 25 /* Inappropriate ioctl for device */ - -#endif diff --git a/sw/z80/kernel/include/fs/dev.h b/sw/z80/kernel/include/fs/dev.h deleted file mode 100644 index 8e550f3..0000000 --- a/sw/z80/kernel/include/fs/dev.h +++ /dev/null @@ -1,29 +0,0 @@ -#ifndef DEV_H -#define DEV_H - -#include "types.h" - -#define FS_MOUNT_LIMIT 16 - -struct fs_superblock -{ - uint8_t magic; // identifier - - size_t blk_size; // size of a single block - size_t imap_size; // quantity of inodes - size_t dmap_size; // quantity of blocks -}; - -struct fs_dev -{ - uint enabled :1; // in use - uint port_no :3; // serial port number - uint :4; - inode_t inode; // dir mounted - struct fs_superblock superblock; // block informations -}; - -/* list of devices */ -extern struct fs_dev devices[FS_MOUNT_LIMIT]; - -#endif diff --git a/sw/z80/kernel/include/fs/dirent.h b/sw/z80/kernel/include/fs/dirent.h deleted file mode 100644 index 2fd224a..0000000 --- a/sw/z80/kernel/include/fs/dirent.h +++ /dev/null @@ -1,17 +0,0 @@ -#ifndef __DIRENT_H__ -#define __DIRENT_H__ - -#include "types.h" - -struct dirent -{ - ino_t inode; // inode referred - uint8_t name_size; // size of the name - char name[]; // name of the referred inode -}; - -/* if inode is FS_INO_NULL, then the dirent is a memory leak */ -/* Warning: dirent leaks are generated by rm or rmdir operations */ -/* Filesystem must be periodically checked and cleaned */ - -#endif // __DIRENT_H__ diff --git a/sw/z80/kernel/include/fs/fd.h b/sw/z80/kernel/include/fs/fd.h deleted file mode 100644 index d2fea2a..0000000 --- a/sw/z80/kernel/include/fs/fd.h +++ /dev/null @@ -1,102 +0,0 @@ -#ifndef __FD_H__ -#define __FD_H__ - -#include "types.h" - -#define FD_MAX 32 - -#define OPEN_READ 0x1 -#define OPEN_WRITE 0x2 -#define OPEN_BIN 0x4 -#define OPEN_APPEND 0x8 -#define OPEN_ERASE 0x10 -#define OPEN_DIR 0x20 -#define OPEN_LINK 0x40 - -#define LS_ALL 0x1 - -/* declare dirent, not include */ -#ifndef __DIRENT_H__ -struct dirent; -#endif - -/* set of operations callback for fd */ -struct fd_operations -{ - size_t (*readline)(inode_t, fsize_t, char *, char term); - size_t (*print)(inode_t, fsize_t, const char *); - size_t (*append)(inode_t, fsize_t*, const char *); - - size_t (*read)(inode_t, fsize_t, void *, size_t); - size_t (*write)(inode_t, fsize_t, const void *, size_t); - size_t (*bin_append)(inode_t, fsize_t*, const void *, size_t); - - size_t (*ls)(inode_t, struct dirent *, uint8_t); - size_t (*find)(inode_t, struct dirent *, const char *); - int8_t (*mkdir)(inode_t, const char *); - int8_t (*rmdir)(inode_t, const char *); - int8_t (*touch)(inode_t, const char *); - int8_t (*rm)(inode_t, const char *); - int8_t (*ln)(inode_t, const char *, const char *); - - int8_t (*special)(inode_t, void *, size_t); -}; - -/* file descriptor */ -struct file_desc -{ - inode_t inode; // inode pointed - fsize_t seek; // virtual seek - devsize_t begin; // beginning of blocks - struct fd_operations opers; // bound operations -}; - -/* bitmap of used file descriptors */ -extern struct uint8_t fd_bmap[FD_TABLE_SIZE / 8]; - -/* table of file descriptors */ -extern struct file_desc fd_table[FD_TABLE_SIZE]; - -/* returns a free file descriptor */ -int8_t __fd_new(); - -/* opens a file streaming of the cwd */ -int8_t __open_c_inode(uint8_t flags); - -/* opens a file streaming by a path */ -int8_t open(const char *path, uint8_t flags); - -/* list content of directory */ -size_t ls(int8_t fd, struct dirent *buf, uint8_t all); - -/* find name through the directory entries */ -size_t find(int8_t fd, struct dirent *buf, const char *name); - -/* creates a new directory inside fd with the specified name */ -int8_t mkdir(int8_t fd, const char *name); - -/* creates a new file inside fd with the specified name */ -int8_t touch(int8_t fd, const char *name); - -/* creates a new symlink inside fd with the specified name */ -int8_t ln(int8_t fd, const char *name); - -/* change virtual seek position of the fd */ -int8_t seek(int8_t fd, fsize_t pos); - -/* reads a string from the fd until the terminator is reached */ -size_t readline(int8_t fd, char *buf, char term); - -/* writes a string into the fd */ -int8_t print(int8_t fd, const char *str); - -/* reads n bytes from the fd */ -size_t read(int8_t fd, void *buf, size_t n); - -/* writes n bytes into the fd */ -int8_t write(int8_t fd, const void *buf, size_t n); - -/* frees fd space */ -void close(int8_t fd); - -#endif // __FD_H__ diff --git a/sw/z80/kernel/include/fs/fdop.h b/sw/z80/kernel/include/fs/fdop.h deleted file mode 100644 index d4b1b77..0000000 --- a/sw/z80/kernel/include/fs/fdop.h +++ /dev/null @@ -1,140 +0,0 @@ -#ifndef __FDOP_H__ -#define __FDOP_H__ - -#include "types.h" - -#ifndef __DIRENT_H__ -struct dirent; -#endif - -/* macro for direct binding */ - -#define FD_BIND_AS_DIR(oper) { \ - oper.ls = &as_ls; \ - oper.find = &as_find; \ - oper.mkdir = &as_mkdir; \ - oper.rmdir = &as_rmdir; \ - oper.touch = &as_touch; \ - oper.rm = &as_rm; \ - oper.ln = &as_ln; \ - } - -#define FD_BIND_SS_DIR(oper) { \ - oper.ls = &ss_ls; \ - oper.find = &ss_find; \ - oper.mkdir = &ss_mkdir; \ - oper.rmdir = &ss_rmdir; \ - oper.touch = &ss_touch; \ - oper.rm = &ss_rm; \ - oper.ln = &ss_ln; \ - } - -#define FD_BIND_AS_FILE(opers, flags) { \ - if (flags & OPEN_READ) \ - opers.readline = as_readline; \ - if (flags & OPEN_APPEND) \ - opers.append = as_append; \ - else if (flags & OPEN_WRITE) \ - opers.print = as_print; \ - } - -#define FD_BIND_SS_FILE(opers, flags) { \ - if (flags & OPEN_READ) \ - opers.readline = ss_readline; \ - if (flags & OPEN_APPEND) \ - opers.append = ss_append; \ - else if (flags & OPEN_WRITE) \ - opers.print = ss_print; \ - } - -#define FD_BIND_AS_BINFILE(opers, flags) { \ - if (flags & OPEN_READ) \ - opers.read = as_read; \ - if (flags & OPEN_APPEND) \ - opers.bin_append = as_bin_append; \ - else if (flags & OPEN_WRITE) \ - opers.write = as_write; \ - } - -#define FD_BIND_SS_BINFILE(opers, flags) { \ - if (flags & OPEN_READ) \ - opers.read = ss_read; \ - if (flags & OPEN_APPEND) \ - opers.bin_append = ss_bin_append; \ - else if (flags & OPEN_WRITE) \ - opers.write = ss_write; \ - } - -/* Set of file descriptors operations */ -/* Determines if to use the serial interface or the address space */ - -/* Address space section */ - -/* File functions */ - -size_t as_readline(inode_t inode, fsize_t seek, char *buf, char term); - -size_t as_print(inode_t inode, fsize_t seek, const char *str); - -size_t as_append(inode_t inode, fsize_t *seek_ptr, const char *str); - - -size_t as_read(inode_t inode, fsize_t seek, void *buf, size_t n); - -size_t as_write(inode_t inode, fsize_t seek, const void *buf, size_t n); - -size_t as_bin_append(inode_t inode, fsize_t *seek_ptr, const void *buf, size_t -n); - -/* Directory functions */ - -size_t as_ls(inode_t inode, struct dirent *buf, uint8_t all); - -size_t as_find(inode_t inode, struct dirent *buf, const char *name); - -int8_t as_mkdir(inode_t inode, const char *name); - -int8_t as_rmdir(inode_t inode, const char *name); - -int8_t as_touch(inode_t inode, const char *name); - -int8_t as_rm(inode_t inode, const char *name); - -int8_t as_ln(inode_t inode, const char *path, const char *name); - -/* Serial Space section */ -/* Warning, it doesn't switch to the right driver */ - -/* File functions */ - -size_t ss_readline(inode_t inode, fsize_t seek, char *buf, char term); - -size_t ss_print(inode_t inode, fsize_t seek, const char *str); - -size_t ss_append(inode_t inode, fsize_t *seek_ptr, const char *str); - - -size_t ss_read(inode_t inode, fsize_t seek, void *buf, size_t n); - -size_t ss_write(inode_t inode, fsize_t seek, const void *buf, size_t n); - -size_t ss_bin_append(inode_t inode, fsize_t *seek_ptr, const void *buf, size_t -n); - -/* Directory functions */ - -size_t ss_ls(inode_t inode, struct dirent *buf, uint8_t all); - -size_t ss_find(inode_t inode, struct dirent *buf, const char *name); - -int8_t ss_mkdir(inode_t inode, const char *name); - -int8_t ss_rmdir(inode_t inode, const char *name); - -int8_t ss_touch(inode_t inode, const char *name); - -int8_t ss_rm(inode_t inode, const char *name); - -int8_t ss_ln(inode_t, const char *path, const char *name); - -#endif // __FDOP_H__ diff --git a/sw/z80/kernel/include/fs/fs.h b/sw/z80/kernel/include/fs/fs.h deleted file mode 100644 index ad20adb..0000000 --- a/sw/z80/kernel/include/fs/fs.h +++ /dev/null @@ -1,63 +0,0 @@ -#ifndef __FS_H__ -#define __FS_H__ - -#include "types.h" - -#define FS_OFFSET 0x1000 - -#define FS_BLOCKS_SIZE 512 -#define FS_BLOCKS_N 8 -#define FS_BLOCKS_IND 6 - -#define INODE_TYPE_FILE 0x0 -#define INODE_TYPE_DIR 0x1 -#define INODE_TYPE_SLINK 0x2 -#define INODE_TYPE_SPECIAL 0x3 - -#define INODE_META_SIZE 8 - -/* inode basic structure */ -struct fs_inode -{ - /* inode meta data */ - - uint mode :3; // chmod - uint uid :3; // chown - uint type :2; // file, dir, sym-link, special - - time_t ctime; // creation time - - uint24_t size; // inode size - - /* data storage informations */ - /* it doesn't allocate memory, virtual size FS_BLOCKS_N */ - blk_t blocks[]; -}; - -#define FS_DEV_ROM 0x7f /* 01111111 */ -#define FS_DEV_NULL 0x80 /* 10000000 */ - -#define FS_ROM_SPACE 0x2000 // second rom - -#define FS_INO_ROOT 0x0 // first inode - -#define FS_INODE_ROOT(inode) {inode.dev = 0xff; inode.inode = 0x0} -#define FS_INODE_NULL(inode) {inode.dev = 0x80; inode.inode = 0x0} - -#define FS_USE_ROM(inode) {inode.dev == 0x7f} - -/* get block seek in current device */ -devsize_t fs_block(blk_t block); - -/* get common inode seek in current device */ -/* c_inode must be set first */ -/* returns seek at the beginning of blocks field */ -devsize_t fs_inode(struct fs_inode *buf); - -/* common inode for syscalls */ -extern inode_t c_inode; - -/* parse a path, absolute or relative to c_inode */ -inode_t fs_parse_path(const char *path); - -#endif // __FS_H__ diff --git a/sw/z80/kernel/include/fs/iter.h b/sw/z80/kernel/include/fs/iter.h deleted file mode 100644 index 41f011d..0000000 --- a/sw/z80/kernel/include/fs/iter.h +++ /dev/null @@ -1,17 +0,0 @@ -#ifndef __ITER_H__ -#define __ITER_H__ - -struct inode_iter -{ - devsize_t dev_seek; /* seek position in the volume */ - devsize_t blk_end; /* end of the block */ - - int16_t blk_index; /* index of the block */ - - int8_t blk_level; /* recursion level, indirect blocks */ - - fsize_t fseek; /* virtual seek in the file */ - fsize_t size; /* file size */ -}; - -#endif // __ITER_H__ diff --git a/sw/z80/kernel/include/fs/users.h b/sw/z80/kernel/include/fs/users.h deleted file mode 100644 index 83980e5..0000000 --- a/sw/z80/kernel/include/fs/users.h +++ /dev/null @@ -1,21 +0,0 @@ -#ifndef USERS_H -#define USERS_H - -#include "types.h" - -#define USERS_MAX 8 -#define USER_ROOT 0 - -/* current user in use */ -extern struct fs_user c_user; - -struct fs_user -{ - char name[32]; - ino_t home; - uint8_t perm; // TODO, permissions -}; - -/* all users are in rom device */ - -#endif diff --git a/sw/z80/kernel/include/memory.h b/sw/z80/kernel/include/memory.h deleted file mode 100644 index 67c4b88..0000000 --- a/sw/z80/kernel/include/memory.h +++ /dev/null @@ -1,50 +0,0 @@ -#ifndef __MEMORY_H__ -#define __MEMORY_H__ - -#include "types.h" -#include "devices.h" - -/* maximum number of pages on the system */ -#define PAGES_MAX_COUNT 32 -#define PAGE_SIZE 1000 - -/* in our system there are only 16 pages since only 64KB can be addressed - * to optimize the memory management in ROM and RAM only pages from this set - * shall be used - */ -// ROM -#define ADDR_PAGE_0 0x0000 -#define ADDR_PAGE_1 0x1000 -#define ADDR_PAGE_2 0x2000 -#define ADDR_PAGE_3 0x3000 -// IOSPACE -#define ADDR_PAGE_4 0x4000 -#define ADDR_PAGE_5 0x5000 -#define ADDR_PAGE_6 0x6000 -#define ADDR_PAGE_7 0x7000 -// RAM -#define ADDR_PAGE_8 0x8000 -#define ADDR_PAGE_9 0x9000 -#define ADDR_PAGE_10 0xA000 -#define ADDR_PAGE_11 0xB000 -#define ADDR_PAGE_12 0xC000 -#define ADDR_PAGE_13 0xD000 -#define ADDR_PAGE_14 0xE000 -#define ADDR_PAGE_15 0xF000 - -#define ADDR_PAGE_FIRST ADDR_PAGE_8 -#define ADDR_PAGE_LAST ADDR_PAGE_15 - -struct page -{ - pid_t pid; // process owner of the page (0 if free) - uint16_t addr; // physical address -}; - -int mmu_write_table(void); - -int page_new(void); -int page_map(int page, int pid, uint16_t addr); -int page_unmap(int page); - -#endif // __MEMORY_H__ diff --git a/sw/z80/kernel/include/process.h b/sw/z80/kernel/include/process.h deleted file mode 100644 index 3b0c843..0000000 --- a/sw/z80/kernel/include/process.h +++ /dev/null @@ -1,43 +0,0 @@ -#ifndef __PROCESS_H__ -#define __PROCESS_H__ - -#include "types.h" -#include "memory.h" - - /* maximum number of processes (i.e. pages in ram) - * since each program can use only one page in ram - */ -#define PROC_COUNT 2 - -/* the pid is defined with a single byte (pid_t is uint8_t), because of that - * there cannot be more than 255 processes open at the same time. this is a - * limitation but for our purposes is more than enough - */ -#define PID_COUNT_MAX 255 - -struct executable -{ - void *text; - size_t text_size; - void *bss; - size_t bss_size; -}; - -struct process -{ - uint blocked :1; // process is waiting for hardware or locked - uint running :1; // pid is used - uint pages; // number of pages used by the process - struct page page[4]; // pages used by the process -}; - -pid_t newpid(void); - -int fork(void); -int exec(char *path, char *args); -int spawn(char *path, char *args); - -pid_t getpid(void); -int kill(pid_t pid); - -#endif // __PROCESS_H__ diff --git a/sw/z80/kernel/include/sio.h b/sw/z80/kernel/include/sio.h deleted file mode 100644 index 276b99c..0000000 --- a/sw/z80/kernel/include/sio.h +++ /dev/null @@ -1,43 +0,0 @@ -#ifndef __SIO_H__ -#define __SIO_H__ - -#include "types.h" - -#define SIO_PORT_0 0x0 -#define SIO_PORT_1 0x1 -#define SIO_PORT_2 0x2 -#define SIO_PORT_3 0x3 -#define SIO_PORT_4 0x4 -#define SIO_PORT_5 0x5 -#define SIO_PORT_6 0x6 -#define SIO_PORT_7 0x7 - -/* current port in use */ -extern uint8_t sio_port; - -/* current seek in the device */ -extern devsize_t sio_seek; - -struct dev_buffer -{ - // TODO, bytes needed to the device buffer interface -}; - -/* points to the buffers mapped in the I/O space */ -/* to be defined precisely in assembly */ -extern volatile struct dev_buffer sio_buffers[8]; - -/* initialize serial interface */ -void sio_init(); - -/* syscall: read one byte from the current device */ -uint8_t sio_recv(); -/* syscall: write one byte into the current device */ -void sio_send(uint8_t value); - -/* read n bytes from the current port */ -size_t sio_read(void *buffer, size_t n); -/* write n bytes into the current port */ -int8_t sio_write(const void *buffer, size_t n); - -#endif // __SIO_H__ diff --git a/sw/z80/kernel/include/stat.h b/sw/z80/kernel/include/stat.h deleted file mode 100644 index 44c0f63..0000000 --- a/sw/z80/kernel/include/stat.h +++ /dev/null @@ -1,24 +0,0 @@ -#ifndef __STAT_H__ -#define __STAT_H__ - -#include "types.h" - -struct stat -{ - inode_t inode; /* inode reference */ - - uint mode :3; /* mode */ - uint uid :3; /* owner id */ - uint type :2; /* file, dir or link */ - - devsize_t size; /* file size */ - - size_t blk_size; /* single block size */ - size_t blk_used; /* blocks used by the file */ - - time_t ctime; /* creation time */ -} - -struct stat * stat(const char *path, struct stat *buffer); - -#endif // __STAT_H__ diff --git a/sw/z80/kernel/include/types.h b/sw/z80/kernel/include/types.h deleted file mode 100644 index c6e620b..0000000 --- a/sw/z80/kernel/include/types.h +++ /dev/null @@ -1,62 +0,0 @@ -#ifndef __TYPES_H__ -#define __TYPES_H__ - -/* only types from primitive types are defined in this file */ - -typedef volatile unsigned char register_t; - -typedef unsigned int uint; - -typedef char int8_t; -typedef unsigned char uint8_t; -typedef int int16_t; -typedef unsigned int uint16_t; -typedef long int int32_t; -typedef unsigned long int uint32_t; - -typedef uint16_t size_t; -typedef int16_t ssize_t; - -typedef uint8_t pid_t; -typedef uint16_t ino_t; - -typedef uint8_t dev_t; -typedef uint32_t devsize_t; -typedef uint8_t fd_t; -typedef uint16_t blk_t; -typedef uint8_t user_t; - -typedef struct { - uint8_t member[3]; - -} uint24_t; - -typedef uint32_t fsize_t; - -typedef struct -{ - dev_t dev; // device id, global in the fs - ino_t inode; // inode id relative to the volume - -} inode_t; - -typedef struct time_s -{ - struct - { - uint minutes :6; - uint hour :5; - - } time; - - struct - { - uint day :5; - uint month :4; - uint year :12; - - } date; - -} time_t; - -#endif |