WiiFlow_Lite/source/devicemounter/usbstorage.c

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/*-------------------------------------------------------------
usbstorage_starlet.c -- USB mass storage support, inside starlet
Copyright (C) 2011 Dimok
Copyright (C) 2011 Rodries
Copyright (C) 2009 Kwiirk
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If this driver is linked before libogc, this will replace the original
usbstorage driver by svpe from libogc
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any
damages arising from the use of this software.
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Permission is granted to anyone to use this software for any
purpose, including commercial applications, and to alter it and
redistribute it freely, subject to the following restrictions:
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1. The origin of this software must not be misrepresented; you
must not claim that you wrote the original software. If you use
this software in a product, an acknowledgment in the product
documentation would be appreciated but is not required.
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2. Altered source versions must be plainly marked as such, and
must not be misrepresented as being the original software.
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3. This notice may not be removed or altered from any source
distribution.
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-------------------------------------------------------------*/
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#include <gccore.h>
#include <malloc.h>
#include <stdio.h>
#include <string.h>
#include "usbstorage.h"
#include "memory/mem2.hpp"
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#include "gecko.h"
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/* IOCTL commands */
#define UMS_BASE (('U'<<24)|('M'<<16)|('S'<<8))
#define USB_IOCTL_UMS_INIT (UMS_BASE+0x1)
#define USB_IOCTL_UMS_GET_CAPACITY (UMS_BASE+0x2)
#define USB_IOCTL_UMS_READ_SECTORS (UMS_BASE+0x3)
#define USB_IOCTL_UMS_WRITE_SECTORS (UMS_BASE+0x4)
#define USB_IOCTL_UMS_READ_STRESS (UMS_BASE+0x5)
#define USB_IOCTL_UMS_SET_VERBOSE (UMS_BASE+0x6)
#define USB_IOCTL_UMS_UMOUNT (UMS_BASE+0x10)
#define USB_IOCTL_UMS_WATCHDOG (UMS_BASE+0x80)
#define USB_IOCTL_UMS_TESTMODE (UMS_BASE+0x81)
#define USB_IOCTL_SET_PORT (UMS_BASE+0x83)
#define WBFS_BASE (('W'<<24)|('F'<<16)|('S'<<8))
#define USB_IOCTL_WBFS_OPEN_DISC (WBFS_BASE+0x1)
#define USB_IOCTL_WBFS_READ_DISC (WBFS_BASE+0x2)
#define USB_IOCTL_WBFS_SET_DEVICE (WBFS_BASE+0x50)
#define USB_IOCTL_WBFS_SET_FRAGLIST (WBFS_BASE+0x51)
#define isMEM2Buffer(p) (((u32) p & 0x10000000) != 0)
#define MAX_SECTOR_SIZE 4096
#define MAX_BUFFER_SECTORS 128
#define UMS_HEAPSIZE 2*1024
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/* Variables */
static char fs[] ATTRIBUTE_ALIGN(32) = "/dev/usb2";
static char fs2[] ATTRIBUTE_ALIGN(32) = "/dev/usb123";
static char fs3[] ATTRIBUTE_ALIGN(32) = "/dev/usb/ehc";
static u8 * mem2_ptr = NULL;
static s32 hid = -1, fd = -1;
static u32 usb2_port = -1; //current USB port
bool hddInUse[2] = { false, false };
u32 hdd_sector_size[2] = { 512, 512 };
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s32 USBStorage2_Init(u32 port)
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{
if(hddInUse[port])
return 0;
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/* Create heap */
if (hid < 0)
{
hid = iosCreateHeap(UMS_HEAPSIZE);
if (hid < 0) return IPC_ENOMEM;
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}
/* Open USB device */
if (fd < 0) fd = IOS_Open(fs, 0);
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if (fd < 0) fd = IOS_Open(fs2, 0);
if (fd < 0) fd = IOS_Open(fs3, 0);
if (fd < 0) return fd;
USBStorage2_SetPort(port);
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/* Initialize USB storage */
IOS_IoctlvFormat(hid, fd, USB_IOCTL_UMS_INIT, ":");
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/* Get device capacity */
if (USBStorage2_GetCapacity(port, &hdd_sector_size[port]) == 0)
return IPC_ENOENT;
hddInUse[port] = true;
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return 0; // 0->HDD, 1->DVD
}
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void USBStorage2_Deinit()
{
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/* Close USB device */
if (fd >= 0)
{
IOS_Close(fd); // not sure to close the fd is needed
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fd = -1;
}
}
s32 USBStorage2_SetPort(u32 port)
{
//! Port = 2 is handle in the loader, no need to handle it in cIOS
if(port > 1)
return -1;
if(port == usb2_port)
return 0;
s32 ret = -1;
usb2_port = port;
gprintf("Changing USB port to port %i....\n", port);
//must be called before USBStorage2_Init (default port 0)
if (fd >= 0)
ret = IOS_IoctlvFormat(hid, fd, USB_IOCTL_SET_PORT, "i:", usb2_port);
return ret;
}
s32 USBStorage2_GetPort()
{
return usb2_port;
}
s32 USBStorage2_GetCapacity(u32 port, u32 *_sector_size)
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{
if (fd >= 0)
{
s32 ret;
u32 sector_size = 0;
USBStorage2_SetPort(port);
ret = IOS_IoctlvFormat(hid, fd, USB_IOCTL_UMS_GET_CAPACITY, ":i", &sector_size);
if (ret && _sector_size) *_sector_size = sector_size;
return ret;
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}
return IPC_ENOENT;
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}
s32 USBStorage2_ReadSectors(u32 port, u32 sector, u32 numSectors, void *buffer)
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{
u8 *buf = (u8 *) buffer;
s32 ret = -1;
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/* Device not opened */
if (fd < 0) return fd;
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if (!mem2_ptr)
mem2_ptr = (u8 *) MEM2_alloc(MAX_SECTOR_SIZE * MAX_BUFFER_SECTORS);
USBStorage2_SetPort(port);
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s32 read_secs, read_size;
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while(numSectors > 0)
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{
read_secs = numSectors > MAX_BUFFER_SECTORS ? MAX_BUFFER_SECTORS : numSectors;
read_size = read_secs*hdd_sector_size[port];
// Do not read more than MAX_BUFFER_SECTORS sectors at once and create a mem overflow!
if (!isMEM2Buffer(buffer))
{
ret = IOS_IoctlvFormat(hid, fd, USB_IOCTL_UMS_READ_SECTORS, "ii:d", sector, read_secs, mem2_ptr, read_size);
if(ret < 0)
return ret;
memcpy(buf, mem2_ptr, read_size);
}
else
{
/* Read data */
ret = IOS_IoctlvFormat(hid, fd, USB_IOCTL_UMS_READ_SECTORS, "ii:d", sector, read_secs, buf, read_size);
if(ret < 0)
return ret;
}
sector += read_secs;
numSectors -= read_secs;
buf += read_size;
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}
return ret;
}
s32 USBStorage2_WriteSectors(u32 port, u32 sector, u32 numSectors, const void *buffer)
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{
u8 *buf = (u8 *) buffer;
s32 ret = -1;
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/* Device not opened */
if (fd < 0) return fd;
/* Device not opened */
if (!mem2_ptr)
mem2_ptr = (u8 *) MEM2_alloc(MAX_SECTOR_SIZE * MAX_BUFFER_SECTORS);
USBStorage2_SetPort(port);
s32 write_size, write_secs;
while(numSectors > 0)
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{
write_secs = numSectors > MAX_BUFFER_SECTORS ? MAX_BUFFER_SECTORS : numSectors;
write_size = write_secs*hdd_sector_size[port];
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/* MEM1 buffer */
if (!isMEM2Buffer(buffer))
{
// Do not read more than MAX_BUFFER_SECTORS sectors at once and create a mem overflow!
memcpy(mem2_ptr, buf, write_size);
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ret = IOS_IoctlvFormat(hid, fd, USB_IOCTL_UMS_WRITE_SECTORS, "ii:d", sector, write_secs, mem2_ptr, write_size);
if(ret < 0)
return ret;
}
else
{
/* Write data */
ret = IOS_IoctlvFormat(hid, fd, USB_IOCTL_UMS_WRITE_SECTORS, "ii:d", sector, write_secs, buf, write_size);
if(ret < 0)
return ret;
}
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sector += write_secs;
numSectors -= write_secs;
buf += write_size;
}
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return ret;
}
s32 USBStorage2_GetSectorSize()
{
return hdd_sector_size[usb2_port];
}
static bool __usbstorage_Startup(void)
{
return USBStorage2_Init(0) >= 0;
}
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static bool __usbstorage_IsInserted(void)
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{
return (USBStorage2_GetCapacity(0, NULL) != 0);
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}
static bool __usbstorage_ReadSectors(u32 sector, u32 numSectors, void *buffer)
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{
return (USBStorage2_ReadSectors(0, sector, numSectors, buffer) >= 0);
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}
static bool __usbstorage_WriteSectors(u32 sector, u32 numSectors, const void *buffer)
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{
return (USBStorage2_WriteSectors(0, sector, numSectors, buffer) >= 0);
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}
static bool __usbstorage_ClearStatus(void)
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{
return true;
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}
static bool __usbstorage_Shutdown(void)
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{
hddInUse[0] = false;
hdd_sector_size[0] = 512;
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return true;
}
const DISC_INTERFACE __io_usbstorage2_port0 = {
DEVICE_TYPE_WII_UMS, FEATURE_MEDIUM_CANREAD | FEATURE_MEDIUM_CANWRITE | FEATURE_WII_USB,
(FN_MEDIUM_STARTUP) &__usbstorage_Startup,
(FN_MEDIUM_ISINSERTED) &__usbstorage_IsInserted,
(FN_MEDIUM_READSECTORS) &__usbstorage_ReadSectors,
(FN_MEDIUM_WRITESECTORS) &__usbstorage_WriteSectors,
(FN_MEDIUM_CLEARSTATUS) &__usbstorage_ClearStatus,
(FN_MEDIUM_SHUTDOWN) &__usbstorage_Shutdown
};
static bool __usbstorage_Startup2(void)
{
return USBStorage2_Init(1) >= 0;
}
static bool __usbstorage_IsInserted2(void)
{
return (USBStorage2_GetCapacity(1, NULL) != 0);
}
static bool __usbstorage_ReadSectors2(u32 sector, u32 numSectors, void *buffer)
{
return (USBStorage2_ReadSectors(1, sector, numSectors, buffer) >= 0);
}
static bool __usbstorage_WriteSectors2(u32 sector, u32 numSectors, const void *buffer)
{
return (USBStorage2_WriteSectors(1, sector, numSectors, buffer) >= 0);
}
static bool __usbstorage_Shutdown2(void)
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{
hddInUse[1] = false;
hdd_sector_size[1] = 512;
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return true;
}
const DISC_INTERFACE __io_usbstorage2_port1 = {
DEVICE_TYPE_WII_UMS, FEATURE_MEDIUM_CANREAD | FEATURE_MEDIUM_CANWRITE | FEATURE_WII_USB,
(FN_MEDIUM_STARTUP) &__usbstorage_Startup2,
(FN_MEDIUM_ISINSERTED) &__usbstorage_IsInserted2,
(FN_MEDIUM_READSECTORS) &__usbstorage_ReadSectors2,
(FN_MEDIUM_WRITESECTORS) &__usbstorage_WriteSectors2,
(FN_MEDIUM_CLEARSTATUS) &__usbstorage_ClearStatus,
(FN_MEDIUM_SHUTDOWN) &__usbstorage_Shutdown2
};