circuitpython/stm/lib/usbd_storage_msd.c

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2013-10-12 19:42:20 -04:00
/**
******************************************************************************
* @file usbd_storage_msd.c
* @author MCD application Team
* @version V1.1.0
* @date 19-March-2012
* @brief This file provides the disk operations functions.
******************************************************************************
* @attention
*
* <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
*
* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
* You may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.st.com/software_license_agreement_liberty_v2
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "usbd_msc_mem.h"
#include "usb_conf.h"
#include "misc.h"
#include "storage.h"
#include "diskio.h"
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/** @addtogroup STM32_USB_OTG_DEVICE_LIBRARY
* @{
*/
/** @defgroup STORAGE
* @brief media storage application module
* @{
*/
/** @defgroup STORAGE_Private_TypesDefinitions
* @{
*/
/**
* @}
*/
/** @defgroup STORAGE_Private_Defines
* @{
*/
#define STORAGE_LUN_NBR 1
/**
* @}
*/
/** @defgroup STORAGE_Private_Macros
* @{
*/
/**
* @}
*/
/** @defgroup STORAGE_Private_Variables
* @{
*/
/* USB Mass storage Standard Inquiry Data */
const int8_t STORAGE_Inquirydata[] = {//36
/* LUN 0 */
0x00,
0x00, // make it 0x80 for a removable drive
0x02,
0x02,
(USBD_STD_INQUIRY_LENGTH - 5),
0x00,
0x00,
0x00,
'S', 'T', 'M', ' ', ' ', ' ', ' ', ' ', /* Manufacturer : 8 bytes */
'm', 'i', 'c', 'r', 'o', 'S', 'D', ' ', /* Product : 16 Bytes */
'F', 'l', 'a', 's', 'h', ' ', ' ', ' ',
'1', '.', '0' ,'0', /* Version : 4 Bytes */
};
/**
* @}
*/
/** @defgroup STORAGE_Private_FunctionPrototypes
* @{
*/
int8_t STORAGE_Init (uint8_t lun);
int8_t STORAGE_GetCapacity (uint8_t lun,
uint32_t *block_num,
uint32_t *block_size);
int8_t STORAGE_IsReady (uint8_t lun);
int8_t STORAGE_IsWriteProtected (uint8_t lun);
int8_t STORAGE_Read (uint8_t lun,
uint8_t *buf,
uint32_t blk_addr,
uint16_t blk_len);
int8_t STORAGE_Write (uint8_t lun,
uint8_t *buf,
uint32_t blk_addr,
uint16_t blk_len);
int8_t STORAGE_GetMaxLun (void);
USBD_STORAGE_cb_TypeDef USBD_MICRO_SDIO_fops =
{
STORAGE_Init,
STORAGE_GetCapacity,
STORAGE_IsReady,
STORAGE_IsWriteProtected,
STORAGE_Read,
STORAGE_Write,
STORAGE_GetMaxLun,
(int8_t *)STORAGE_Inquirydata,
};
USBD_STORAGE_cb_TypeDef *USBD_STORAGE_fops = &USBD_MICRO_SDIO_fops;
/*
#ifndef USE_STM3210C_EVAL
extern SD_CardInfo SDCardInfo;
#endif
*/
/**
* @}
*/
/** @defgroup STORAGE_Private_Functions
* @{
*/
/**
* @brief Initialize the storage medium
* @param lun : logical unit number
* @retval Status
*/
int8_t STORAGE_Init (uint8_t lun)
{
/*
#ifndef USE_STM3210C_EVAL
NVIC_InitTypeDef NVIC_InitStructure;
NVIC_InitStructure.NVIC_IRQChannel = SDIO_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority =0;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
#endif
if( SD_Init() != 0)
{
return (-1);
}
*/
return (0);
}
/**
* @brief return medium capacity and block size
* @param lun : logical unit number
* @param block_num : number of physical block
* @param block_size : size of a physical block
* @retval Status
*/
int8_t STORAGE_GetCapacity (uint8_t lun, uint32_t *block_num, uint32_t *block_size)
{
/*
#ifdef USE_STM3210C_EVAL
SD_CardInfo SDCardInfo;
SD_GetCardInfo(&SDCardInfo);
#else
if(SD_GetStatus() != 0 )
{
return (-1);
}
#endif
*/
*block_size = storage_get_block_size();
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//*block_num = SDCardInfo.CardCapacity / 512;
*block_num = storage_get_block_count();
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return (0);
}
/**
* @brief check whether the medium is ready
* @param lun : logical unit number
* @retval Status
*/
int8_t STORAGE_IsReady (uint8_t lun)
{
/*
#ifndef USE_STM3210C_EVAL
static int8_t last_status = 0;
if(last_status < 0)
{
SD_Init();
last_status = 0;
}
if(SD_GetStatus() != 0)
{
last_status = -1;
return (-1);
}
#else
if( SD_Init() != 0)
{
return (-1);
}
#endif
*/
return (0);
}
/**
* @brief check whether the medium is write-protected
* @param lun : logical unit number
* @retval Status
*/
int8_t STORAGE_IsWriteProtected (uint8_t lun)
{
return 0;
}
/**
* @brief Read data from the medium
* @param lun : logical unit number
* @param buf : Pointer to the buffer to save data
* @param blk_addr : address of 1st block to be read
* @param blk_len : nmber of blocks to be read
* @retval Status
*/
int8_t STORAGE_Read (uint8_t lun,
uint8_t *buf,
uint32_t blk_addr,
uint16_t blk_len)
{
/*
if( SD_ReadMultiBlocks (buf,
blk_addr * 512,
512,
blk_len) != 0)
{
return -1;
}
#ifndef USE_STM3210C_EVAL
SD_WaitReadOperation();
while (SD_GetStatus() != SD_TRANSFER_OK);
#endif
*/
disk_read(0, buf, blk_addr, blk_len);
return 0;
}
/**
* @brief Write data to the medium
* @param lun : logical unit number
* @param buf : Pointer to the buffer to write from
* @param blk_addr : address of 1st block to be written
* @param blk_len : nmber of blocks to be read
* @retval Status
*/
int8_t STORAGE_Write (uint8_t lun,
uint8_t *buf,
uint32_t blk_addr,
uint16_t blk_len)
{
/*
if( SD_WriteMultiBlocks (buf,
blk_addr * 512,
512,
blk_len) != 0)
{
return -1;
}
#ifndef USE_STM3210C_EVAL
SD_WaitWriteOperation();
while (SD_GetStatus() != SD_TRANSFER_OK);
#endif
*/
disk_write(0, buf, blk_addr, blk_len);
storage_flush(); // XXX hack for now so that the cache is always flushed
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return (0);
}
/**
* @brief Return number of supported logical unit
* @param None
* @retval number of logical unit
*/
int8_t STORAGE_GetMaxLun (void)
{
return (STORAGE_LUN_NBR - 1);
}
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/