From ad0a29a314d090ee820694c39ea7d11addb8742f Mon Sep 17 00:00:00 2001 From: "leleraffa97@hotmail.it" Date: Thu, 31 Aug 2017 17:27:10 +0200 Subject: Some untracked files from last commit --- sw/z80/kernel/fs.c | 5 - sw/z80/kernel/fs/fd.c | 255 +++++++++++++++++++++++++++++++++++++++++++++++++ sw/z80/kernel/fs/fs.c | 236 +++++++++++++++++++++++++++++++++++++++++++++ sw/z80/kernel/memory.c | 29 ++++++ 4 files changed, 520 insertions(+), 5 deletions(-) delete mode 100644 sw/z80/kernel/fs.c create mode 100644 sw/z80/kernel/fs/fd.c create mode 100644 sw/z80/kernel/fs/fs.c (limited to 'sw/z80') diff --git a/sw/z80/kernel/fs.c b/sw/z80/kernel/fs.c deleted file mode 100644 index 3ce7f42..0000000 --- a/sw/z80/kernel/fs.c +++ /dev/null @@ -1,5 +0,0 @@ -#include "fs.h" -#include "users.h" -#include "mount.h" - -struct fs_mount_point * mount_points[FS_MOUNT_LIMIT]; diff --git a/sw/z80/kernel/fs/fd.c b/sw/z80/kernel/fs/fd.c new file mode 100644 index 0000000..96603ad --- /dev/null +++ b/sw/z80/kernel/fs/fd.c @@ -0,0 +1,255 @@ +#include "fs/fd.h" +#include "fs/fdop.h" +#include "fs/fs.h" + +/* from fd.h */ +struct file_desc fd_table[FD_TABLE_SIZE]; +struct uint8_t fd_bmap[FD_TABLE_SIZE / 8]; + +/* File descriptors implementation */ + +int8_t open(const char *path, uint8_t flags) +{ + // TODO + return 0; +} + +size_t ls(int8_t fd, struct dirent *buf, uint8_t all) +{ + // TODO + return 0; +} + +size_t find(int8_t fd, struct dirent *buf, const char *name) +{ + // TODO + return 0; +} + +int8_t mkdir(int8_t fd, const char *name) +{ + // TODO + return 0; +} + +int8_t touch(int8_t fd, const char *name) +{ + // TODO + return 0; +} + +int8_t ln(int8_t fd, const char *name) +{ + // TODO + return 0; +} + +int8_t seek(int8_t fd, fsize_t pos) +{ + // TODO + return 0; +} + +size_t readline(int8_t fd, char *buf, char term) +{ + // TODO + return 0; +} + +int8_t print(int8_t fd, const char *str) +{ + // TODO + return 0; +} + +size_t read(int8_t fd, void *buf, size_t n) +{ + // TODO + return 0; +} + +int8_t write(int8_t fd, const void *buf, size_t n) +{ + // TODO + return 0; +} + +void close(int8_t fd) +{ + // TODO + return 0; +} + +/* 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) +{ + // TODO + return 0; +} + +size_t as_print(inode_t inode, fsize_t seek, const char *str) +{ + // TODO + return 0; +} + +size_t as_append(inode_t inode, fsize_t *seek_ptr, const char *str) +{ + // TODO + return 0; +} + +size_t as_read(inode_t inode, fsize_t seek, void *buf, size_t n) +{ + // TODO + return 0; +} + +size_t as_write(inode_t inode, fsize_t seek, const void *buf, size_t n) +{ + // TODO + return 0; +} + +size_t as_bin_append(inode_t inode, fsize_t *seek_ptr, const void *buf, size_t +n) +{ + // TODO + return 0; +} + +/* Directory functions */ + +size_t as_ls(inode_t inode, struct dirent *buf, uint8_t all) +{ + // TODO + return 0; +} + +size_t as_find(inode_t inode, struct dirent *buf, const char *name) +{ + // TODO + return 0; +} + +int8_t as_mkdir(inode_t inode, const char *name) +{ + // TODO + return 0; +} + +int8_t as_rmdir(inode_t inode, const char *name) +{ + // TODO + return 0; +} + +int8_t as_touch(inode_t inode, const char *name) +{ + // TODO + return 0; +} + +int8_t as_rm(inode_t inode, const char *name) +{ + // TODO + return 0; +} + +int8_t as_ln(inode_t inode, const char *path, const char *name) +{ + // TODO + return 0; +} + +/* 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) +{ + // TODO + return 0; +} + +size_t ss_print(inode_t inode, fsize_t seek, const char *str) +{ + // TODO + return 0; +} + +size_t ss_append(inode_t inode, fsize_t *seek_ptr, const char *str) +{ + // TODO + return 0; +} + +size_t ss_read(inode_t inode, fsize_t seek, void *buf, size_t n) +{ + // TODO + return 0; +} + +size_t ss_write(inode_t inode, fsize_t seek, const void *buf, size_t n) +{ + // TODO + return 0; +} + +size_t ss_bin_append(inode_t inode, fsize_t *seek_ptr, const void *buf, size_t +n) +{ + // TODO + return 0; +} + +/* Directory functions */ + +size_t ss_ls(inode_t inode, struct dirent *buf, uint8_t all) +{ + // TODO + return 0; +} + +size_t ss_find(inode_t inode, struct dirent *buf, const char *name) +{ + // TODO + return 0; +} + +int8_t ss_mkdir(inode_t inode, const char *name) +{ + // TODO + return 0; +} + +int8_t ss_rmdir(inode_t inode, const char *name) +{ + // TODO + return 0; +} + +int8_t ss_touch(inode_t inode, const char *name) +{ + // TODO + return 0; +} + +int8_t ss_rm(inode_t inode, const char *name) +{ + // TODO + return 0; +} + +int8_t ss_ln(inode_t, const char *path, const char *name) +{ + // TODO + return 0; +} diff --git a/sw/z80/kernel/fs/fs.c b/sw/z80/kernel/fs/fs.c new file mode 100644 index 0000000..584f934 --- /dev/null +++ b/sw/z80/kernel/fs/fs.c @@ -0,0 +1,236 @@ +#include "fs/fs.h" +#include "fs/users.h" +#include "fs/dev.h" + +/* from users.h */ +struct fs_user c_user; + +/* from inode.h */ +inode_t c_inode; + +struct fs_dev devices[FS_MOUNT_LIMIT]; + +/* filesystem basic implementation */ + +devsize_t fs_block(blk_t block) +{ + // TODO + return 0; +} + +devsize_t fs_inode(struct fs_inode *buf) +{ + struct fs_superblock * sb; + devsize_t seek; + + if (FS_USE_ROM(c_inode)) + { + seek = FS_ROM_SPACE; + sb = (struct fs_superblock*) seek; + + } else { + + seek = 0; + + if (c_inode.dev > 0x7) + panic("Invalid device"); // TODO, still to implement + + sb = &devices[c_inode.dev].superblock; + } + + if (c_inode.inode >= sb->imap_size) + { + // TODO, set errno + return 0; // inode doesn't exist + } + + seek += sizeof(struct fs_superblock) + + sizeof(struct fs_inode) * c_inode.inode; + + if (FS_USE_ROM(c_inode)) + *buf = *(struct fs_inode*)seek; + else + { + /* set sio port */ + sio_port = devices[c_inode.dev].port_no; + sio_seek = seek; + + if (sio_read((void *)buf, INODE_META_SIZE) < INODE_META_SIZE) + { + // TODO, set errno + return 0; // cannot read to device + } + } + + return seek + INODE_META_SIZE; +} + +/* from fd.h */ +int8_t __fd_new() +{ + int8_t fd; + for (int8_t = 0; i < FD_TABLE_SIZE / 8; i++) + { + for (uint8_t bit = 0x80, j = 0; bit > 0; bit >>= 1, j++) + { + if (!(bit & fd_bmap[i])) + return i * 8 + j; + } + } + + return -1; +} + +/* from fd.h */ +int8_t __open_c_inode(uint8_t flags) +{ + /* read meta data */ + struct fs_inode inode; + + /* init file_desc buffer */ + struct file_desc desc = {c_inode, 0}; + + desc.begin = fs_inode(&inode); + + /* bind operations */ + + if (flags & OPEN_DIR) + { + /* dir handler */ + + if (inode.type == INODE_TYPE_DIR) + { + /* bind dir functions */ + if (FS_USE_ROM(c_inode)) + /* bind address space functions */ + FD_BIND_AS_DIR(desc.opers) + else + /* bind serial space functions */ + FD_BIND_SS_DIR(desc.opers) + + } else { + + // TODO, set errno + return -1; // not a directory + } + + } else if (flags & OPEN_LINK) { + + /* link handler */ + + if (inode.type == INODE_TYPE_LINK) + { + if (FS_USE_ROM(c_inode)) + FD_BIND_AS_FILE(desc.opers, flags) + else + FD_BIND_SS_FILE(desc.opers, flags) + + if (flags & OPEN_ERASE) + /* empty file content */ + __inode_empty(desc.begin); + + } else { + + // TODO, set errno + return -1; // not a link + } + + } else { + + /* file */ + + if (inode.type == INODE_TYPE_FILE) + ; // do nothing + else if (inode.type == INODE_TYPE_SPECIAL) { + + // TODO, bind special callbacks + + } else { + + // TODO, set errno + return -1; + } + + /* bind operations */ + + if (FS_USE_ROM(c_inode)) + { + if (flags & OPEN_BIN) + FD_BIND_AS_BINFILE(desc.opers, flags) + else + FD_BIND_AS_FILE(desc.opers, flags) + + } else { + + if (flags & OPEN_BIN) + FD_BIND_SS_BINFILE(desc.opers, flags) + else + FD_BIND_SS_FILE(desc.opers, flags) + } + } + + /* find a free fd space */ + + int8_t fd = __fd_new(); + + if (fd < 0) + { + // TODO, set errno, fd not available + + } else + fd_table[fd] = desc; // copy buffer into the table + + return fd; +} + +inode_t fs_rec_path(const char *path); + +inode_t fs_parse_path(const char *path) +{ + inode_t ino, cwd = c_inode; + + switch (path[0]) + { + case '0': + FS_INODE_NULL(ino) + return ino; + + case '/': + FS_INODE_ROOT(ino) + c_inode = ino; // set cwd to root + path++; + break; + + case '~': + + if (path[1] = '/') + { + c_inode.dev = FS_DEV_ROM; + c_inode.inode = c_user.home; // set cwd to home + path += 2; + } + + break; + } + + ino = fs_rec_path(path); + c_inode = cwd; + return ino; +} + +inode_t fs_rec_path(const char *path) +{ + devsize_t inode = fs_inode(c_inode.inode); + inode_t rel; + + if (!inode) // if not exists + { + FS_INODE_NULL(rel) + return rel; + } + + // TODO, check if dir or file + // TODO, if dir, find name + // TODO, set fs_cwd to new inode + // TODO, recall fs_rec_path +} diff --git a/sw/z80/kernel/memory.c b/sw/z80/kernel/memory.c index f174906..bcda3c3 100644 --- a/sw/z80/kernel/memory.c +++ b/sw/z80/kernel/memory.c @@ -41,3 +41,32 @@ int page_unmap(int page) pages_table[page].used = 0; return 0; } + +/* k_malloc manager */ +/* +struct k_buf_entry k_buf_table[K_BUF_MAX_COUNT]; + +struct k_buf k_buffers[K_BUF_MAX_COUNT]; + +void * k_malloc() +{ + for (uint8_t i = 0; i < K_BUF_TABLE_COUNT; i++) + { + for (uint8_t bit = 0x80, j = 0; j < 8; bit >>= 1, j++) + { + if (bit & k_buf_table[i]) + { + k_buf_table[i] |= bit; + return &k_buffers[8 * i + j]; + } + } + } +} + +void k_free(void * ptr) +{ + uint8_t index = (ptr - &k_buffers[0]) / K_BUF_SIZE; + + if (index < K_BUF_MAX_COUNT) + k_buf_table[index / 8] ^= 0x80 >> index % 8; +}*/ -- cgit v1.2.1