mirror of
https://github.com/nitraiolo/CfgUSBLoader.git
synced 2024-10-22 22:25:05 +02:00
98 lines
2.2 KiB
C
98 lines
2.2 KiB
C
/*
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* DIP plugin for Custom IOS.
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*
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* Copyright (C) 2008-2010 Waninkoko, WiiGator.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <string.h>
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#include "dip_calls.h"
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#include "syscalls.h"
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/* Commands */
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#define IOCTL_WBFS_BASE (('W'<<24) | ('F'<<16) | ('S'<<8))
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#define IOCTL_WBFS_OPEN (IOCTL_WBFS_BASE + 0x1)
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#define IOCTL_WBFS_READ (IOCTL_WBFS_BASE + 0x2)
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/* Variables */
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static char *devFs[] = { "/dev/usb2", "/dev/sdio/sdhc" };
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static s32 devFd = -1;
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/* I/O buffer */
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static ioctlv vector[4] ATTRIBUTE_ALIGN(32);
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static u32 buffer[9] ATTRIBUTE_ALIGN(32);
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s32 WBFS_Open(u32 device, u8 *discid)
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{
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/* Open device */
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devFd = os_open(devFs[device], 1);
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if (devFd < 0)
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return devFd;
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/* Copy disc ID */
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memcpy(buffer, discid, 6);
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/* Setup vector */
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vector[0].data = buffer;
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vector[0].len = 6;
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/* Open disc */
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return os_ioctlv(devFd, IOCTL_WBFS_OPEN, 1, 0, vector);
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}
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void WBFS_Close(void)
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{
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/* Close device */
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if (devFd >= 0)
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os_close(devFd);
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/* Reset descriptor */
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devFd = -1;
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}
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s32 WBFS_Read(void *outbuf, u32 len, u32 offset)
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{
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s32 ret;
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/* Set buffers */
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buffer[0] = offset;
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buffer[8] = len;
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/* Setup vector */
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vector[0].data = &buffer[0];
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vector[0].len = 4;
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vector[1].data = &buffer[8];
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vector[1].len = 4;
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vector[2].data = outbuf;
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vector[2].len = len;
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/* Flush cache */
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os_sync_after_write(vector, sizeof(vector));
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os_sync_after_write(buffer, sizeof(buffer));
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/* Read data */
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ret = os_ioctlv(devFd, IOCTL_WBFS_READ, 2, 1, vector);
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if (ret)
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return ret;
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/* Invalidate cache */
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os_sync_before_read(outbuf, len);
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return 0;
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}
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