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snes9xgx/source/utils/usb2storage.c

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/****************************************************************************
* WiiMC
* usb2storage.c -- USB mass storage support, inside starlet
* Copyright (C) 2008 Kwiirk
* Improved for homebrew by rodries and Tantric
*
* IOS 202 and the ehcmodule must be loaded before using this!
*
* 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.
*
* 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:
*
* 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.
*
* 2. Altered source versions must be plainly marked as such, and
* must not be misrepresented as being the original software.
*
* 3. This notice may not be removed or altered from any source
* distribution.
*
***************************************************************************/
#ifdef HW_RVL
#include <gccore.h>
#include <ogc/lwp_heap.h>
#include <malloc.h>
#include <ogc/disc_io.h>
#include <ogc/usbstorage.h>
#include <ogc/mutex.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <ogc/machine/processor.h>
//#define DEBUG_USB2
#ifdef DEBUG_USB2
#define debug_printf(fmt, args...) \
fprintf(stderr, "%s:%d:" fmt, __FUNCTION__, __LINE__, ##args)
#else
#define debug_printf(fmt, args...)
#endif // DEBUG_USB2
#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_IS_INSERTED (UMS_BASE+0x7)
#define USB_IOCTL_UMS_USB_MODE (UMS_BASE+0x8)
#define USB_IOCTL_UMS_GET_USBLAN_PORT (UMS_BASE+0x9)
#define USB_IOCTL_UMS_UMOUNT (UMS_BASE+0x10)
#define USB_IOCTL_UMS_START (UMS_BASE+0x11)
#define USB_IOCTL_UMS_STOP (UMS_BASE+0x12)
#define USB_IOCTL_UMS_EXIT (UMS_BASE+0x16)
#define UMS_HEAPSIZE 2*1024
#define UMS_MAXPATH 16
static s32 hId = -1;
static s32 __usb2fd = -1;
static u32 sector_size;
static mutex_t usb2_mutex = LWP_MUTEX_NULL;
static u8 *fixed_buffer = NULL;
#define ROUNDDOWN32(v) (((u32)(v)-0x1f)&~0x1f)
#define USB2_BUFFER 128*1024
static heap_cntrl usb2_heap;
static u8 __usb2_heap_created = 0;
static DISC_INTERFACE __io_usb1storage;
static int usb1disc_inited = 0;
extern const DISC_INTERFACE __io_usb2storage;
static s32 USB2CreateHeap()
{
u32 level;
void *usb2_heap_ptr;
if (__usb2_heap_created != 0)
return IPC_OK;
_CPU_ISR_Disable(level);
usb2_heap_ptr = (void *) ROUNDDOWN32(((u32)SYS_GetArena2Hi() - (USB2_BUFFER+(4*1024))));
if ((u32) usb2_heap_ptr < (u32) SYS_GetArena2Lo())
{
_CPU_ISR_Restore(level);
return IPC_ENOMEM;
}
SYS_SetArena2Hi(usb2_heap_ptr);
__lwp_heap_init(&usb2_heap, usb2_heap_ptr, (USB2_BUFFER + (4 * 1024)), 32);
__usb2_heap_created = 1;
_CPU_ISR_Restore(level);
return IPC_OK;
}
static s32 USB2Storage_Initialize()
{
if(__usb2fd > 0)
return 0;
char *devicepath = NULL;
if (usb2_mutex == LWP_MUTEX_NULL)
LWP_MutexInit(&usb2_mutex, false);
if (hId == -1)
hId = iosCreateHeap(UMS_HEAPSIZE);
if (hId < 0)
{
debug_printf("error IPC_ENOMEM\n");
return IPC_ENOMEM;
}
if (USB2CreateHeap() != IPC_OK)
{
debug_printf("error USB2 IPC_ENOMEM\n");
return IPC_ENOMEM;
}
if (fixed_buffer == NULL)
fixed_buffer = __lwp_heap_allocate(&usb2_heap, USB2_BUFFER);
if (__usb2fd <= 0)
{
LWP_MutexLock(usb2_mutex);
devicepath = iosAlloc(hId, UMS_MAXPATH);
if (devicepath == NULL)
{
LWP_MutexUnlock(usb2_mutex);
return IPC_ENOMEM;
}
snprintf(devicepath, USB_MAXPATH, "/dev/usb2");
__usb2fd = IOS_Open(devicepath, 0);
iosFree(hId, devicepath);
LWP_MutexUnlock(usb2_mutex);
}
if(__usb2fd <= 0)
return -1;
return 0;
}
static s32 USB2Storage_Open()
{
s32 ret = USB_OK;
u32 size = 0;
if(USB2Storage_Initialize() < 0)
return -1;
ret = IOS_IoctlvFormat(hId, __usb2fd, USB_IOCTL_UMS_INIT, ":");
debug_printf("usb2 init value: %i\n", ret);
if (ret < 0)
debug_printf("usb2 error init\n");
else
size = IOS_IoctlvFormat(hId, __usb2fd, USB_IOCTL_UMS_GET_CAPACITY, ":i",
&sector_size);
debug_printf("usb2 GET_CAPACITY: %d\n", size);
if (size == 0)
ret = -2012;
else
ret = 1;
return ret;
}
void USB2Storage_Close()
{
if(__usb2fd <= 0)
return;
IOS_Close(__usb2fd);
__usb2fd = -1;
}
static inline int is_MEM2_buffer(const void *buffer)
{
u32 high_addr = ((u32) buffer) >> 24;
return (high_addr == 0x90) || (high_addr == 0xD0);
}
void USB2Enable(bool enable)
{
if(!usb1disc_inited)
{
usb1disc_inited = 1;
memcpy(&__io_usb1storage, &__io_usbstorage, sizeof(DISC_INTERFACE));
}
if(!enable)
{
memcpy(&__io_usbstorage, &__io_usb1storage, sizeof(DISC_INTERFACE));
}
else
{
USB2Storage_Initialize();
memcpy(&__io_usbstorage, &__io_usb2storage, sizeof(DISC_INTERFACE));
}
}
static bool __usb2storage_Startup(void)
{
if(USB2Storage_Open() < 0)
return false;
if(__usb2fd > 0)
return true;
return false;
}
static bool __usb2storage_IsInserted(void)
{
if (USB2Storage_Open() < 0)
return false;
if(usb2_mutex == LWP_MUTEX_NULL)
return false;
if (__usb2fd > 0)
{
LWP_MutexLock(usb2_mutex);
int retval = IOS_IoctlvFormat(hId, __usb2fd, USB_IOCTL_UMS_IS_INSERTED, ":");
LWP_MutexUnlock(usb2_mutex);
debug_printf("isinserted usb2 retval: %d \n",retval);
if (retval > 0)
return true;
}
return false;
}
static bool __usb2storage_ReadSectors(u32 sector, u32 numSectors, void *buffer)
{
s32 ret = 1;
u32 sectors = 0;
uint8_t *dest = buffer;
if (__usb2fd < 1 || usb2_mutex == LWP_MUTEX_NULL)
return false;
LWP_MutexLock(usb2_mutex);
while (numSectors > 0)
{
if (numSectors * sector_size > USB2_BUFFER)
sectors = USB2_BUFFER / sector_size;
else
sectors = numSectors;
if (!is_MEM2_buffer(dest)) //libfat is not providing us good buffers :-(
{
ret = IOS_IoctlvFormat(hId, __usb2fd, USB_IOCTL_UMS_READ_SECTORS, "ii:d",
sector, sectors, fixed_buffer, sector_size * sectors);
memcpy(dest, fixed_buffer, sector_size * sectors);
}
else
ret = IOS_IoctlvFormat(hId, __usb2fd, USB_IOCTL_UMS_READ_SECTORS, "ii:d",
sector, sectors, dest, sector_size * sectors);
dest += sector_size * sectors;
if (ret < 1) break;
sector += sectors;
numSectors -= sectors;
}
if(ret<1) USB2Storage_Close();
LWP_MutexUnlock(usb2_mutex);
if (ret < 1) return false;
return true;
}
static bool __usb2storage_WriteSectors(u32 sector, u32 numSectors, const void *buffer)
{
s32 ret = 1;
u32 sectors = 0;
uint8_t *dest = (uint8_t *) buffer;
if (__usb2fd < 1 || usb2_mutex == LWP_MUTEX_NULL)
return false;
LWP_MutexLock(usb2_mutex);
while (numSectors > 0 && ret > 0)
{
if (numSectors * sector_size > USB2_BUFFER)
sectors = USB2_BUFFER / sector_size;
else
sectors = numSectors;
numSectors -= sectors;
if (!is_MEM2_buffer(dest)) // libfat is not providing us good buffers :-(
{
memcpy(fixed_buffer, dest, sector_size * sectors);
ret = IOS_IoctlvFormat(hId, __usb2fd, USB_IOCTL_UMS_WRITE_SECTORS,
"ii:d", sector, sectors, fixed_buffer, sector_size
* sectors);
}
else
ret = IOS_IoctlvFormat(hId, __usb2fd, USB_IOCTL_UMS_WRITE_SECTORS,
"ii:d", sector, sectors, dest, sector_size * sectors);
if (ret < 1)break;
dest += sector_size * sectors;
sector += sectors;
}
LWP_MutexUnlock(usb2_mutex);
if(ret < 1 ) return false;
return true;
}
static bool __usb2storage_ClearStatus(void)
{
return true;
}
static bool __usb2storage_Shutdown(void)
{
return true;
}
void SetUSB2Mode(int mode)
{
USB2Storage_Initialize();
IOS_IoctlvFormat(hId, __usb2fd, USB_IOCTL_UMS_USB_MODE, "b:",(u8)mode);
}
int GetUSB2LanPort()
{
USB2Storage_Initialize();
return IOS_IoctlvFormat(hId, __usb2fd, USB_IOCTL_UMS_GET_USBLAN_PORT, ":");
}
const DISC_INTERFACE __io_usb2storage = {
DEVICE_TYPE_WII_USB,
FEATURE_MEDIUM_CANREAD | FEATURE_MEDIUM_CANWRITE | FEATURE_WII_USB,
(FN_MEDIUM_STARTUP) & __usb2storage_Startup,
(FN_MEDIUM_ISINSERTED) & __usb2storage_IsInserted,
(FN_MEDIUM_READSECTORS) & __usb2storage_ReadSectors,
(FN_MEDIUM_WRITESECTORS) & __usb2storage_WriteSectors,
(FN_MEDIUM_CLEARSTATUS) & __usb2storage_ClearStatus,
(FN_MEDIUM_SHUTDOWN) & __usb2storage_Shutdown
};
#endif
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