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https://github.com/rvtr/twl_wrapsdk.git
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0351a4cfd1
git-svn-id: file:///Users/lillianskinner/Downloads/platinum/twl/twl_wrapsdk/trunk@195 4ee2a332-4b2b-5046-8439-1ba90f034370
275 lines
9.4 KiB
C
275 lines
9.4 KiB
C
/*---------------------------------------------------------------------------*
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Project: CTR - for RTFS
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File: attach.c
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2006 Nintendo.
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*---------------------------------------------------------------------------*/
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#include <twl.h>
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#include <rtfs.h>
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#include <portconf.h> /* For included devices */
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#include "drdefault.h" /* default driver */
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/*---------------------------------------------------------------------------*
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global変数
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*---------------------------------------------------------------------------*/
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BOOLEAN rtfs_first_attach = TRUE; //attach APIがまだ未使用ならTRUE
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//attachされてからDEVCTL_CHECKSTATUSが呼ばれてなければ1
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int rtfs_first_stat_flag[26] ={
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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1
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};
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/*---------------------------------------------------------------------------*
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extern変数
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*---------------------------------------------------------------------------*/
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extern int enabled_drivers;
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extern DDRIVE* current_pdr;
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extern int auto_format_disk(DDRIVE *pdr, byte *drivename);
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extern void drno_to_string(byte *pname, int drno);
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extern DDRIVE* pc_drno_to_drive_struct(int driveno);
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extern void print_device_names(void);
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/*---------------------------------------------------------------------------*
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extern関数
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*---------------------------------------------------------------------------*/
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/*-------------- ctr modified(new function) -------------*/
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//extern BOOLEAN i_rtfs_begin_attach( void);
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extern BOOLEAN i_rtfs_attach( int driveno, DDRIVE* pdr, char* dev_name);
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extern BOOLEAN i_rtfs_end_attach( void);
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/*-------------------------------------------------------*/
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/*---------------------------------------------------------------------------*
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static関数
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*---------------------------------------------------------------------------*/
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static void i_rtfsInit( DDRIVE* pdr);
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static int i_rtfs_close_disk( int driveno);
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/*---------------------------------------------------------------------------*
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Name: rtfs_attach
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Description:
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Arguments: driveno : ドライブ番号
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Returns:
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*---------------------------------------------------------------------------*/
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BOOLEAN rtfs_attach( int driveno, DDRIVE* pdr, char* dev_name)
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{
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DDRIVE *target_pdr;
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// osTPrintf( "original attach\n");
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if( rtfs_first_attach) { //最初のattachだった場合
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rtfs_init();//i_rtfs_begin_attach();
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rtfs_first_attach = FALSE;
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}
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/*アタッチする構造体を選択*/
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target_pdr = pc_drno_to_drive_struct( driveno);
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if( target_pdr == 0) { /*未登録なら新しい構造体へ*/
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// osTPrintf( "target_pdr = current_pdr\n");
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target_pdr = current_pdr;
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}else{
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/* if( target_pdr->dev_table_drive_io == pdr->dev_table_drive_io) {
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return( TRUE); //自分自身ならスルー
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}*/
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if(( target_pdr->dev_table_drive_io != defaultRtfsIo)&&
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( target_pdr->dev_table_drive_io != NULL)){
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return( FALSE); /*default以外のドライバがattach済みならエラー*/
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}
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}
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if (++enabled_drivers > prtfs_cfg->cfg_NDRIVES) {
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// osTPrintf( "%s : too many drives attached - ");
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// osTPrintf( "%d / %d\n", enabled_drivers, prtfs_cfg->cfg_NDRIVES);
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return( FALSE);
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}
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target_pdr->driveno = driveno;
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target_pdr->dev_table_drive_io = pdr->dev_table_drive_io;
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target_pdr->dev_table_perform_device_ioctl = pdr->dev_table_perform_device_ioctl;
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rtfs_strcpy(target_pdr->device_name, (byte *)dev_name);
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target_pdr->register_file_address = pdr->register_file_address;
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target_pdr->interrupt_number = pdr->interrupt_number;
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target_pdr->drive_flags = pdr->drive_flags | DRIVE_FLAGS_REMOVABLE | DRIVE_FLAGS_INSERTED;
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target_pdr->partition_number = pdr->partition_number;
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target_pdr->pcmcia_slot_number = pdr->pcmcia_slot_number;
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target_pdr->controller_number = pdr->controller_number;
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target_pdr->logical_unit_number = pdr->logical_unit_number;
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rtfs_first_stat_flag[driveno] = 1; /* 初回DEVCTL_CHECKSTATUSフラグON */
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i_rtfsInit( target_pdr);
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/**/
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if( target_pdr == current_pdr) {
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current_pdr++;
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}
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return( TRUE);
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}
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/**/
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static void i_rtfsInit( DDRIVE* pdr)
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{
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byte drname[8]; /* Temp buffer for displaying drive letters as strings */
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/* WARMSTART */
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if( pdr->dev_table_drive_io) {
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prtfs_cfg->drno_to_dr_map[pdr->driveno] = pdr; /* MAPS DRIVE structure to DRIVE: */
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if (pdr->dev_table_perform_device_ioctl(pdr->driveno, DEVCTL_WARMSTART, (void *) 0) != 0)
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{
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prtfs_cfg->drno_to_dr_map[pdr->driveno] = 0; /* It is not there. */
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/* so forget it */
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}
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#if (INCLUDE_FAILSAFE_CODE)
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/* Call the the ertfs pro failsafe autoinit function */
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if (pdr->drive_flags&DRIVE_FLAGS_FAILSAFE)
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{
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if (!pro_failsafe_auto_init(pdr)) //マニュアル参照
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{
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prtfs_cfg->drno_to_dr_map[pdr->driveno] = 0; /* Forget it, not there. */
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}
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}
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#endif
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/* Set the default drive to the lowest assigned drive letter */
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prtfs_cfg->default_drive_id = pdr->driveno;
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}
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/* autoformatting ram devices */
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if ( pdr->drive_flags&DRIVE_FLAGS_VALID && pdr->drive_flags&DRIVE_FLAGS_FORMAT)
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{
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OS_CLAIM_LOGDRIVE(pdr->driveno) /* Autoformat Register drive in use */
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drno_to_string(drname, pdr->driveno);
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// RTFS_PRINT_STRING_2(USTRING_RTFSINIT_07, drname,0); /* "Autoformatting Drive Id - " */
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#if (STORE_DEVICE_NAMES_IN_DRIVE_STRUCT)
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// RTFS_PRINT_STRING_2(USTRING_RTFSINIT_08, pdr->device_name,PRFLG_NL); /* " as Device: " */
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#endif
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if (auto_format_disk(pdr, drname) != 0) {
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// RTFS_PRINT_STRING_2(USTRING_RTFSINIT_09, drname,PRFLG_NL); /* "Autoformatting Drive Id - \n" */
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}
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OS_RELEASE_LOGDRIVE(pdr->driveno) /* Autoformat release */
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}
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}
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/*---------------------------------------------------------------------------*
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Name: rtfs_detach
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Description:
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Arguments: driveno : ドライブ番号
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Returns:
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*---------------------------------------------------------------------------*/
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BOOLEAN rtfs_detach( int driveno)
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{
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DDRIVE *target_pdr;
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// osTPrintf( "original detach\n");
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target_pdr = pc_drno_to_drive_struct( driveno);
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if( target_pdr == 0) {
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return( FALSE); //未割り当てなのでdetachの必要なし
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}else{
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if( (target_pdr->dev_table_drive_io == defaultRtfsIo) ||
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(target_pdr->dev_table_drive_io == NULL)) {
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return( FALSE); //既にdetach済み
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}
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}
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/*open中のファイルを全てcloseする*/
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i_rtfs_close_disk( driveno);
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--enabled_drivers;
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target_pdr->driveno = driveno;
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target_pdr->dev_table_drive_io = defaultRtfsIo;
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target_pdr->dev_table_perform_device_ioctl = defaultRtfsCtrl;
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rtfs_strcpy(target_pdr->device_name, (byte *)"DEFAULT\0"); //STORE_DEVICE_NAME(dev_name)
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target_pdr->register_file_address = 0;
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target_pdr->interrupt_number = 0;
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target_pdr->drive_flags = 0;
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target_pdr->partition_number = 0;
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target_pdr->pcmcia_slot_number = 0;
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target_pdr->controller_number = 0;
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target_pdr->logical_unit_number = 0;
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/*REMOVE扱い*/
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target_pdr->drive_flags |= DRIVE_FLAGS_REMOVABLE;
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target_pdr->drive_flags &= ~DRIVE_FLAGS_INSERTED;
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return( TRUE);
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}
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/*---------------------------------------------------------------------------*
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Name: i_rtfs_close_disk
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Description: 指定ドライブでopen中のファイルを全てcloseする
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Arguments: driveno : ドライブ番号
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Returns:
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*---------------------------------------------------------------------------*/
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static int i_rtfs_close_disk( int driveno)
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{
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PC_FILE *pfile;
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PCFD i;
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DROBJ *pobj;
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int ret_val = 0;
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rtfs_set_errno(0); /* clear errno */
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pfile = prtfs_cfg->mem_file_pool;
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for (i=0;i<pc_nuserfiles();i++, pfile++)
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{
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if( (pfile->is_free) == FALSE) //open中か？
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{
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if( !pfile->pobj) {//PECLOSEDエラーに相当(pc_fd2file参照)
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OS_CLAIM_FSCRITICAL()
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pfile->is_free = TRUE;
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OS_RELEASE_FSCRITICAL()
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}else{ //正常にopen中
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if( (pfile->pobj->pdrive->driveno) == driveno) {
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#if (RTFS_WRITE)
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if (pfile->flag & ( PO_RDWR | PO_WRONLY ) )
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{
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if (!_po_flush(pfile))
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{ /* _po_flush has set errno */
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ret_val = -1;
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}
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}
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#endif
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/* Release the FD and its core */
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//pc_freefile( pfile); apifilio.c内のstatic関数なので以下に展開
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OS_CLAIM_FSCRITICAL()
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pobj = pfile->pobj;
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pfile->is_free = TRUE;
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OS_RELEASE_FSCRITICAL()
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pc_freeobj(pobj);
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}
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}
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}
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}
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if (!release_drive_mount_write(driveno)) {/* Release lock, unmount if aborted */
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return (-1);
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}
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return( ret_val);
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}
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