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/********************************************************************* |
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* Copyright (C) 2003 Tord Lindstrom (pukko@home.se) |
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* Copyright (C) 2004 adresd (adresd_ps2dev@yahoo.com) |
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* This file is subject to the terms and conditions of the PS2Link License. |
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* See the file LICENSE in the main directory of this distribution for more |
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* details. |
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*/ |
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|
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#include <types.h> |
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#include <thbase.h> |
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#include <ioman.h> |
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#include <sysclib.h> |
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#include <stdio.h> |
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#include <intrman.h> |
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#include <loadcore.h> |
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#include <thsemap.h> |
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|
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#include "net_fio.h" |
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|
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#define IOCTL_RENAME 0xFEEDC0DE //dlanor: Used for the Ioctl request code => Rename |
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|
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#ifdef DEBUG |
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#define dbgprintf(args...) printf(args) |
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#else |
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#define dbgprintf(args...) do { } while(0) |
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#endif |
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|
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static char fsname[] = "host"; |
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|
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//---------------------------------------------------------------------------- |
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|
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/* File desc struct is probably larger than this, but we only |
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* need to access the word @ offset 0x0C (in which we put our identifier) |
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*/ |
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struct filedesc_info |
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{ |
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int unkn0; |
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int unkn4; |
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int device_id; // the X in hostX |
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int own_fd; |
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}; |
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//dlanor: In fact this struct is declared elsewhere as iop_file_t, with |
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//dlanor: well known fields. The one declared as "int own_fd;" above is |
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//dlanor: there declared as "void *privdata;" but it doesn't matter, as |
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//dlanor: it is up to each driver how to use that field. So using it as |
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//dlanor: a simple "int" instead of a pointer will work fine. |
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|
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|
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//---------------------------------------------------------------------------- |
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/* We need(?) to protect the net access, so the server doesn't get |
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* confused if two processes calls a fsys func at the same time |
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*/ |
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static int fsys_sema; |
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static int fsys_pid = 0; |
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|
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//---------------------------------------------------------------------------- |
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//dlanor: We need variables to remember a file/folder descriptor used |
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//dlanor: with the Ioctl Rename function, so that we can avoid passing |
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//dlanor: the following fioClose call to PC, where it's already closed. |
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//dlanor: We also need a flag to note when we must ignore an Mkdir call |
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//dlanor: because it is caused by the bug IOMAN.IRX has for fioRemove. |
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// |
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int lastopen_fd; //descriptor of the most recently opened file/folder |
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int renamed_fd; //descriptor of renamed file/folder awaiting closure |
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int remove_flag=0; //Set in fsysRemove, cleared by all other fsysXXXXX |
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int remove_result; //Set in fsysRemove, so fsysMkdir can use it for bug |
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|
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typedef void (*th_func_p)(void *); //dlanor: added to suppress warnings |
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|
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//---------------------------------------------------------------------------- |
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static void fsysInit(iop_device_t *driver) |
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{ |
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struct _iop_thread mythread; |
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int pid; |
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int i; |
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|
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dbgprintf("initializing %s\n", driver->name); |
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|
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remove_flag = 0; |
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|
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// Start socket server thread |
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|
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mythread.attr = 0x02000000; // attr |
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mythread.option = 0; // option |
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mythread.thread = (th_func_p) pko_file_serv; // entry |
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mythread.stacksize = 0x800; |
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mythread.priority = 0x45; // We really should choose prio w more effort |
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|
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pid = CreateThread(&mythread); |
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|
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if (pid > 0) { |
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if ((i=StartThread(pid, NULL)) < 0) { |
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printf("StartThread failed (%d)\n", i); |
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} |
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} |
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else { |
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printf("CreateThread failed (%d)\n", pid); |
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} |
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|
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fsys_pid = pid; |
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dbgprintf("Thread id: %x\n", pid); |
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} |
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//---------------------------------------------------------------------------- |
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static int fsysDestroy(void) |
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{ |
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remove_flag = 0; |
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|
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WaitSema(fsys_sema); |
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pko_close_fsys(); |
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// ExitDeleteThread(fsys_pid); |
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SignalSema(fsys_sema); |
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DeleteSema(fsys_sema); |
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return 0; |
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} |
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|
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|
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//---------------------------------------------------------------------------- |
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static int dummyFormat() |
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{ |
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remove_flag = 0; |
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|
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printf("dummy Format function called\n"); |
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return -5; |
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} |
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//---------------------------------------------------------------------------- |
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static int fsysOpen( int fd, char *name, int mode) |
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{ |
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struct filedesc_info *fd_info; |
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int fsys_fd; |
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|
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dbgprintf("fsysOpen..\n"); |
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dbgprintf(" fd: %x, name: %s, mode: %d\n\n", fd, name, mode); |
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|
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remove_flag = 0; |
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|
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fd_info = (struct filedesc_info *)fd; |
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|
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WaitSema(fsys_sema); |
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fsys_fd = pko_open_file(name, mode); |
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SignalSema(fsys_sema); |
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fd_info->own_fd = fsys_fd; |
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renamed_fd = -1; |
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lastopen_fd = fsys_fd; |
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|
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return fsys_fd; |
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} |
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//---------------------------------------------------------------------------- |
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static int fsysClose( int fd) |
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{ |
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int remote_fd = ((struct filedesc_info *)fd)->own_fd; |
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int ret; |
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|
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dbgprintf("fsys_close..\n" |
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" fd: %x\n\n", fd); |
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|
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remove_flag = 0; |
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|
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if (remote_fd != renamed_fd){ |
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WaitSema(fsys_sema); |
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ret = pko_close_file(remote_fd); |
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SignalSema(fsys_sema); |
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} else ret = 0; |
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renamed_fd = -1; |
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|
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return ret; |
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} |
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//---------------------------------------------------------------------------- |
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static int fsysRead( int fd, char *buf, int size) |
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{ |
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struct filedesc_info *fd_info; |
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int ret; |
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|
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fd_info = (struct filedesc_info *)fd; |
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|
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dbgprintf("fsysRead..." |
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" fd: %x\n" |
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" bf: %x\n" |
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" sz: %d\n" |
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" ow: %d\n\n", fd, (int)buf, size, fd_info->own_fd); |
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|
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remove_flag = 0; |
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|
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WaitSema(fsys_sema); |
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ret = pko_read_file(fd_info->own_fd, buf, size); |
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SignalSema(fsys_sema); |
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|
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return ret; |
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} |
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//---------------------------------------------------------------------------- |
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static int fsysWrite( int fd, char *buf, int size) |
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{ |
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struct filedesc_info *fd_info; |
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int ret; |
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|
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dbgprintf("fsysWrite..." |
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" fd: %x\n", fd); |
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|
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remove_flag = 0; |
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|
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fd_info = (struct filedesc_info *)fd; |
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WaitSema(fsys_sema); |
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ret = pko_write_file(fd_info->own_fd, buf, size); |
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SignalSema(fsys_sema); |
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return ret; |
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} |
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//---------------------------------------------------------------------------- |
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static int fsysLseek( int fd, unsigned int offset, int whence) |
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{ |
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struct filedesc_info *fd_info; |
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int ret; |
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|
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dbgprintf("fsysLseek..\n" |
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" fd: %x\n" |
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" of: %x\n" |
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" wh: %x\n\n", fd, offset, whence); |
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|
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remove_flag = 0; |
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|
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fd_info = (struct filedesc_info *)fd; |
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WaitSema(fsys_sema); |
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ret = pko_lseek_file(fd_info->own_fd, offset, whence); |
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SignalSema(fsys_sema); |
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return ret; |
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} |
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//---------------------------------------------------------------------------- |
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static int fsysIoctl(iop_file_t* file, unsigned long request, void *data) |
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{ |
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int remote_fd = ((struct filedesc_info *) file)->own_fd; |
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int ret; |
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dbgprintf("fsysioctl..\n"); |
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dbgprintf(" fd: %x\n" |
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" rq: %x\n" |
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" dp: %x\n\n", ); |
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|
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remove_flag = 0; |
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|
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if (request == IOCTL_RENAME){ |
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if (lastopen_fd == remote_fd){ |
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WaitSema(fsys_sema); |
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ret = pko_ioctl(remote_fd, request, data); |
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SignalSema(fsys_sema); |
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if ((ret == 0) || (ret == -6)) |
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renamed_fd = remote_fd; |
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} else { |
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printf("Ioctl Rename function used incorrectly.\n"); |
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ret = -5; |
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|
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} |
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} else { |
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printf("Ioctl function called with invalid request code\n"); |
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ret = -5; |
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} |
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return ret; |
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} |
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//---------------------------------------------------------------------------- |
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static int fsysRemove(iop_file_t* file, char *name) |
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{ |
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int ret; |
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dbgprintf("fsysRemove..\n"); |
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dbgprintf(" name: %s\n\n", name); |
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|
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remove_flag = 1; |
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|
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WaitSema(fsys_sema); |
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ret = pko_remove(name); |
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SignalSema(fsys_sema); |
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|
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remove_result = ret; |
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return ret; |
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} |
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//---------------------------------------------------------------------------- |
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static int fsysMkdir(iop_file_t* file, char *name, int mode) |
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{ |
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int ret; |
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dbgprintf("fsysMkdir..\n"); |
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dbgprintf(" name: '%s'\n\n", name); |
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|
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if (remove_flag == 0){ |
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WaitSema(fsys_sema); |
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ret = pko_mkdir(name, mode); |
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SignalSema(fsys_sema); |
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} else { |
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remove_flag = 0; |
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ret = remove_result; |
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} |
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|
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return ret; |
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} |
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//---------------------------------------------------------------------------- |
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static int fsysRmdir(iop_file_t* file, char *name) |
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{ |
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int ret; |
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dbgprintf("fsysRmdir..\n"); |
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dbgprintf(" name: %s\n\n", name); |
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|
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remove_flag = 0; |
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|
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WaitSema(fsys_sema); |
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ret = pko_rmdir(name); |
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SignalSema(fsys_sema); |
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|
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return ret; |
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} |
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//---------------------------------------------------------------------------- |
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static int fsysDopen(int fd, char *name) |
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{ |
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struct filedesc_info *fd_info; |
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int fsys_fd; |
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|
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dbgprintf("fsysDopen..\n"); |
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dbgprintf(" fd: %x, name: %s\n\n", fd, name); |
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|
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fd_info = (struct filedesc_info *)fd; |
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|
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remove_flag = 0; |
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|
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WaitSema(fsys_sema); |
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fsys_fd = pko_open_dir(name); |
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SignalSema(fsys_sema); |
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fd_info->own_fd = fsys_fd; |
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renamed_fd = -1; |
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lastopen_fd = fsys_fd; |
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|
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return fsys_fd; |
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} |
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//---------------------------------------------------------------------------- |
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static int fsysDclose(int fd) |
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{ |
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int remote_fd = ((struct filedesc_info *)fd)->own_fd; |
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int ret; |
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|
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dbgprintf("fsys_dclose..\n" |
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" fd: %x\n\n", fd); |
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|
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remove_flag = 0; |
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|
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if (remote_fd != renamed_fd){ |
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WaitSema(fsys_sema); |
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ret = pko_close_dir(remote_fd); |
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SignalSema(fsys_sema); |
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} else ret = 0; |
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renamed_fd = -1; |
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|
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return ret; |
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} |
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//---------------------------------------------------------------------------- |
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static int fsysDread(int fd, void *buf) |
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{ |
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struct filedesc_info *fd_info; |
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int ret; |
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|
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fd_info = (struct filedesc_info *)fd; |
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|
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dbgprintf("fsysDread..." |
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" fd: %x\n" |
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" bf: %x\n" |
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" ow: %d\n\n", fd, (int)buf, fd_info->own_fd); |
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|
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remove_flag = 0; |
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|
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WaitSema(fsys_sema); |
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ret = pko_read_dir(fd_info->own_fd, buf); |
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SignalSema(fsys_sema); |
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|
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return ret; |
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|
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} |
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//---------------------------------------------------------------------------- |
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static int dummyGetstat() |
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{ |
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remove_flag = 0; |
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|
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printf("dummy Getstat function called\n"); |
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return -5; |
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} |
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//---------------------------------------------------------------------------- |
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static int dummyChstat() |
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{ |
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remove_flag = 0; |
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|
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printf("dummy Chstat function called\n"); |
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return -5; |
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} |
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//---------------------------------------------------------------------------- |
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iop_device_ops_t fsys_functarray = |
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{ (void *)fsysInit, |
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(void *)fsysDestroy, |
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(void *)dummyFormat, //init, deinit, format |
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(void *)fsysOpen, |
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(void *)fsysClose, |
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(void *)fsysRead, //open, close, read, |
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(void *)fsysWrite, |
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(void *)fsysLseek, |
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(void *)fsysIoctl, //write, lseek, ioctl |
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(void *)fsysRemove, |
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(void *)fsysMkdir, |
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(void *)fsysRmdir, //remove, mkdir, rmdir |
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(void *)fsysDopen, |
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(void *)fsysDclose, |
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(void *)fsysDread, //dopen, dclose, dread |
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(void *)dummyGetstat, |
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(void *)dummyChstat }; //getstat, chstat |
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|
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iop_device_t fsys_driver = { fsname, 16, 1, "fsys driver", |
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&fsys_functarray }; |
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//---------------------------------------------------------------------------- |
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// Entry point for mounting the file system |
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int fsysMount(void) |
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{ |
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iop_sema_t sema_info; |
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|
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sema_info.attr = 1; |
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sema_info.option = 0; |
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sema_info.initial = 1; |
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sema_info.max = 1; |
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fsys_sema = CreateSema(&sema_info); |
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|
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DelDrv(fsname); |
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AddDrv(&fsys_driver); |
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|
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return 0; |
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} |
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|
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//---------------------------------------------------------------------------- |
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int fsysUnmount(void) |
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{ |
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DelDrv(fsname); |
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return 0; |
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} |
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//---------------------------------------------------------------------------- |
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//End of file: net_fsys.c |
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//---------------------------------------------------------------------------- |
