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stmhal: Change 64-bit arithmetic to 32-bit for SD card block addressing. 

By measuring SD card addresses in blocks and not bytes, one can get away
with using 32-bit numbers.

This patch also uses proper atomic lock/unlock around SD card
read/write, adds SD.info() function, and gives error code for failed
read/writes.
This commit is contained in:
Damien George 2014-09-15 23:49:57 +01:00
parent 6ff42c54bb
commit 1d7fb82f0a
8 changed files with 126 additions and 83 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
stmhal/diskio.c
View File

@ -127,7 +127,7 @@ DRESULT disk_read (
#if MICROPY_HW_HAS_SDCARD #if MICROPY_HW_HAS_SDCARD
case PD_SDCARD: case PD_SDCARD:
if (!sdcard_read_blocks(buff, sector, count)) { if (sdcard_read_blocks(buff, sector, count) != 0) {
return RES_ERROR; return RES_ERROR;
} }
return RES_OK; return RES_OK;
@ -160,7 +160,7 @@ DRESULT disk_write (
#if MICROPY_HW_HAS_SDCARD #if MICROPY_HW_HAS_SDCARD
case PD_SDCARD: case PD_SDCARD:
if (!sdcard_write_blocks(buff, sector, count)) { if (sdcard_write_blocks(buff, sector, count) != 0) {
return RES_ERROR; return RES_ERROR;
} }
return RES_OK; return RES_OK;

10
stmhal/hal/inc/stm32f4xx_hal_sd.h
View File

@ -630,8 +630,9 @@ void HAL_SD_MspDeInit(SD_HandleTypeDef *hsd);
* @{ * @{
*/ */
/* Blocking mode: Polling */ /* Blocking mode: Polling */
HAL_SD_ErrorTypedef HAL_SD_ReadBlocks(SD_HandleTypeDef *hsd, uint32_t *pReadBuffer, uint64_t ReadAddr, uint32_t BlockSize, uint32_t NumberOfBlocks); // dpgeorge: read/write functions renamed to emphasise that address is given by block number
HAL_SD_ErrorTypedef HAL_SD_WriteBlocks(SD_HandleTypeDef *hsd, uint32_t *pWriteBuffer, uint64_t WriteAddr, uint32_t BlockSize, uint32_t NumberOfBlocks); HAL_SD_ErrorTypedef HAL_SD_ReadBlocks_BlockNumber(SD_HandleTypeDef *hsd, uint32_t *pReadBuffer, uint32_t BlockNumber, uint32_t BlockSize, uint32_t NumberOfBlocks);
HAL_SD_ErrorTypedef HAL_SD_WriteBlocks_BlockNumber(SD_HandleTypeDef *hsd, uint32_t *pWriteBuffer, uint32_t BlockNumber, uint32_t BlockSize, uint32_t NumberOfBlocks);
HAL_SD_ErrorTypedef HAL_SD_Erase(SD_HandleTypeDef *hsd, uint64_t startaddr, uint64_t endaddr); HAL_SD_ErrorTypedef HAL_SD_Erase(SD_HandleTypeDef *hsd, uint64_t startaddr, uint64_t endaddr);
/* Non-Blocking mode: Interrupt */ /* Non-Blocking mode: Interrupt */
@ -646,8 +647,9 @@ void HAL_SD_XferCpltCallback(SD_HandleTypeDef *hsd);
void HAL_SD_XferErrorCallback(SD_HandleTypeDef *hsd); void HAL_SD_XferErrorCallback(SD_HandleTypeDef *hsd);
/* Non-Blocking mode: DMA */ /* Non-Blocking mode: DMA */
HAL_SD_ErrorTypedef HAL_SD_ReadBlocks_DMA(SD_HandleTypeDef *hsd, uint32_t *pReadBuffer, uint64_t ReadAddr, uint32_t BlockSize, uint32_t NumberOfBlocks); // dpgeorge: read/write functions renamed to emphasise that address is given by block number
HAL_SD_ErrorTypedef HAL_SD_WriteBlocks_DMA(SD_HandleTypeDef *hsd, uint32_t *pWriteBuffer, uint64_t WriteAddr, uint32_t BlockSize, uint32_t NumberOfBlocks); HAL_SD_ErrorTypedef HAL_SD_ReadBlocks_BlockNumber_DMA(SD_HandleTypeDef *hsd, uint32_t *pReadBuffer, uint32_t BlockNumber, uint32_t BlockSize, uint32_t NumberOfBlocks);
HAL_SD_ErrorTypedef HAL_SD_WriteBlocks_BlockNumber_DMA(SD_HandleTypeDef *hsd, uint32_t *pWriteBuffer, uint32_t BlockNumber, uint32_t BlockSize, uint32_t NumberOfBlocks);
HAL_SD_ErrorTypedef HAL_SD_CheckWriteOperation(SD_HandleTypeDef *hsd, uint32_t Timeout); HAL_SD_ErrorTypedef HAL_SD_CheckWriteOperation(SD_HandleTypeDef *hsd, uint32_t Timeout);
HAL_SD_ErrorTypedef HAL_SD_CheckReadOperation(SD_HandleTypeDef *hsd, uint32_t Timeout); HAL_SD_ErrorTypedef HAL_SD_CheckReadOperation(SD_HandleTypeDef *hsd, uint32_t Timeout);
/** /**

56
stmhal/hal/src/stm32f4xx_hal_sd.c
View File

@ -449,13 +449,13 @@ __weak void HAL_SD_MspDeInit(SD_HandleTypeDef *hsd)
* is managed by polling mode. * is managed by polling mode.
* @param hsd: SD handle * @param hsd: SD handle
* @param pReadBuffer: pointer to the buffer that will contain the received data * @param pReadBuffer: pointer to the buffer that will contain the received data
* @param ReadAddr: Address from where data is to be read * @param BlockNumber: Block number from where data is to be read (byte address = BlockNumber * BlockSize)
* @param BlockSize: SD card Data block size * @param BlockSize: SD card Data block size
* This parameter should be 512 * This parameter should be 512
* @param NumberOfBlocks: Number of SD blocks to read * @param NumberOfBlocks: Number of SD blocks to read
* @retval SD Card error state * @retval SD Card error state
*/ */
HAL_SD_ErrorTypedef HAL_SD_ReadBlocks(SD_HandleTypeDef *hsd, uint32_t *pReadBuffer, uint64_t ReadAddr, uint32_t BlockSize, uint32_t NumberOfBlocks) HAL_SD_ErrorTypedef HAL_SD_ReadBlocks_BlockNumber(SD_HandleTypeDef *hsd, uint32_t *pReadBuffer, uint32_t BlockNumber, uint32_t BlockSize, uint32_t NumberOfBlocks)
{ {
SDIO_CmdInitTypeDef sdio_cmdinitstructure; SDIO_CmdInitTypeDef sdio_cmdinitstructure;
SDIO_DataInitTypeDef sdio_datainitstructure; SDIO_DataInitTypeDef sdio_datainitstructure;
@ -465,10 +465,16 @@ HAL_SD_ErrorTypedef HAL_SD_ReadBlocks(SD_HandleTypeDef *hsd, uint32_t *pReadBuff
/* Initialize data control register */ /* Initialize data control register */
hsd->Instance->DCTRL = 0; hsd->Instance->DCTRL = 0;
uint32_t ReadAddr;
if (hsd->CardType == HIGH_CAPACITY_SD_CARD) if (hsd->CardType == HIGH_CAPACITY_SD_CARD)
{ {
BlockSize = 512; BlockSize = 512;
ReadAddr /= 512; ReadAddr = BlockNumber;
}
else
{
// should not overflow for standard-capacity cards
ReadAddr = BlockNumber * BlockSize;
} }
/* Set Block Size for Card */ /* Set Block Size for Card */
@ -507,7 +513,7 @@ HAL_SD_ErrorTypedef HAL_SD_ReadBlocks(SD_HandleTypeDef *hsd, uint32_t *pReadBuff
sdio_cmdinitstructure.CmdIndex = SD_CMD_READ_SINGLE_BLOCK; sdio_cmdinitstructure.CmdIndex = SD_CMD_READ_SINGLE_BLOCK;
} }
sdio_cmdinitstructure.Argument = (uint32_t)ReadAddr; sdio_cmdinitstructure.Argument = ReadAddr;
SDIO_SendCommand(hsd->Instance, &sdio_cmdinitstructure); SDIO_SendCommand(hsd->Instance, &sdio_cmdinitstructure);
/* Read block(s) in polling mode */ /* Read block(s) in polling mode */
@ -633,13 +639,13 @@ HAL_SD_ErrorTypedef HAL_SD_ReadBlocks(SD_HandleTypeDef *hsd, uint32_t *pReadBuff
* transfer is managed by polling mode. * transfer is managed by polling mode.
* @param hsd: SD handle * @param hsd: SD handle
* @param pWriteBuffer: pointer to the buffer that will contain the data to transmit * @param pWriteBuffer: pointer to the buffer that will contain the data to transmit
* @param WriteAddr: Address from where data is to be written * @param BlockNumber: Block number to where data is to be written (byte address = BlockNumber * BlockSize)
* @param BlockSize: SD card Data block size * @param BlockSize: SD card Data block size
* This parameter should be 512. * This parameter should be 512.
* @param NumberOfBlocks: Number of SD blocks to write * @param NumberOfBlocks: Number of SD blocks to write
* @retval SD Card error state * @retval SD Card error state
*/ */
HAL_SD_ErrorTypedef HAL_SD_WriteBlocks(SD_HandleTypeDef *hsd, uint32_t *pWriteBuffer, uint64_t WriteAddr, uint32_t BlockSize, uint32_t NumberOfBlocks) HAL_SD_ErrorTypedef HAL_SD_WriteBlocks_BlockNumber(SD_HandleTypeDef *hsd, uint32_t *pWriteBuffer, uint32_t BlockNumber, uint32_t BlockSize, uint32_t NumberOfBlocks)
{ {
SDIO_CmdInitTypeDef sdio_cmdinitstructure; SDIO_CmdInitTypeDef sdio_cmdinitstructure;
SDIO_DataInitTypeDef sdio_datainitstructure; SDIO_DataInitTypeDef sdio_datainitstructure;
@ -651,10 +657,16 @@ HAL_SD_ErrorTypedef HAL_SD_WriteBlocks(SD_HandleTypeDef *hsd, uint32_t *pWriteBu
/* Initialize data control register */ /* Initialize data control register */
hsd->Instance->DCTRL = 0; hsd->Instance->DCTRL = 0;
uint32_t WriteAddr;
if (hsd->CardType == HIGH_CAPACITY_SD_CARD) if (hsd->CardType == HIGH_CAPACITY_SD_CARD)
{ {
BlockSize = 512; BlockSize = 512;
WriteAddr /= 512; WriteAddr = BlockNumber;
}
else
{
// should not overflow for standard-capacity cards
WriteAddr = BlockNumber * BlockSize;
} }
/* Set Block Size for Card */ /* Set Block Size for Card */
@ -684,7 +696,7 @@ HAL_SD_ErrorTypedef HAL_SD_WriteBlocks(SD_HandleTypeDef *hsd, uint32_t *pWriteBu
sdio_cmdinitstructure.CmdIndex = SD_CMD_WRITE_SINGLE_BLOCK; sdio_cmdinitstructure.CmdIndex = SD_CMD_WRITE_SINGLE_BLOCK;
} }
sdio_cmdinitstructure.Argument = (uint32_t)WriteAddr; sdio_cmdinitstructure.Argument = WriteAddr;
SDIO_SendCommand(hsd->Instance, &sdio_cmdinitstructure); SDIO_SendCommand(hsd->Instance, &sdio_cmdinitstructure);
/* Check for error conditions */ /* Check for error conditions */
@ -851,13 +863,13 @@ HAL_SD_ErrorTypedef HAL_SD_WriteBlocks(SD_HandleTypeDef *hsd, uint32_t *pWriteBu
* to check the completion of the read process * to check the completion of the read process
* @param hsd: SD handle * @param hsd: SD handle
* @param pReadBuffer: Pointer to the buffer that will contain the received data * @param pReadBuffer: Pointer to the buffer that will contain the received data
* @param ReadAddr: Address from where data is to be read * @param BlockNumber: Block number from where data is to be read (byte address = BlockNumber * BlockSize)
* @param BlockSize: SD card Data block size * @param BlockSize: SD card Data block size
* This paramater should be 512. * This paramater should be 512.
* @param NumberOfBlocks: Number of blocks to read. * @param NumberOfBlocks: Number of blocks to read.
* @retval SD Card error state * @retval SD Card error state
*/ */
HAL_SD_ErrorTypedef HAL_SD_ReadBlocks_DMA(SD_HandleTypeDef *hsd, uint32_t *pReadBuffer, uint64_t ReadAddr, uint32_t BlockSize, uint32_t NumberOfBlocks) HAL_SD_ErrorTypedef HAL_SD_ReadBlocks_BlockNumber_DMA(SD_HandleTypeDef *hsd, uint32_t *pReadBuffer, uint32_t BlockNumber, uint32_t BlockSize, uint32_t NumberOfBlocks)
{ {
SDIO_CmdInitTypeDef sdio_cmdinitstructure; SDIO_CmdInitTypeDef sdio_cmdinitstructure;
SDIO_DataInitTypeDef sdio_datainitstructure; SDIO_DataInitTypeDef sdio_datainitstructure;
@ -898,10 +910,16 @@ HAL_SD_ErrorTypedef HAL_SD_ReadBlocks_DMA(SD_HandleTypeDef *hsd, uint32_t *pRead
/* Enable the DMA Stream */ /* Enable the DMA Stream */
HAL_DMA_Start_IT(hsd->hdmarx, (uint32_t)&hsd->Instance->FIFO, (uint32_t)pReadBuffer, (uint32_t)(BlockSize * NumberOfBlocks)); HAL_DMA_Start_IT(hsd->hdmarx, (uint32_t)&hsd->Instance->FIFO, (uint32_t)pReadBuffer, (uint32_t)(BlockSize * NumberOfBlocks));
uint32_t ReadAddr;
if (hsd->CardType == HIGH_CAPACITY_SD_CARD) if (hsd->CardType == HIGH_CAPACITY_SD_CARD)
{ {
BlockSize = 512; BlockSize = 512;
ReadAddr /= 512; ReadAddr = BlockNumber;
}
else
{
// should not overflow for standard-capacity cards
ReadAddr = BlockNumber * BlockSize;
} }
/* Set Block Size for Card */ /* Set Block Size for Card */
@ -941,7 +959,7 @@ HAL_SD_ErrorTypedef HAL_SD_ReadBlocks_DMA(SD_HandleTypeDef *hsd, uint32_t *pRead
sdio_cmdinitstructure.CmdIndex = SD_CMD_READ_SINGLE_BLOCK; sdio_cmdinitstructure.CmdIndex = SD_CMD_READ_SINGLE_BLOCK;
} }
sdio_cmdinitstructure.Argument = (uint32_t)ReadAddr; sdio_cmdinitstructure.Argument = ReadAddr;
SDIO_SendCommand(hsd->Instance, &sdio_cmdinitstructure); SDIO_SendCommand(hsd->Instance, &sdio_cmdinitstructure);
/* Check for error conditions */ /* Check for error conditions */
@ -968,13 +986,13 @@ HAL_SD_ErrorTypedef HAL_SD_ReadBlocks_DMA(SD_HandleTypeDef *hsd, uint32_t *pRead
* to check the completion of the write process (by SD current status polling). * to check the completion of the write process (by SD current status polling).
* @param hsd: SD handle * @param hsd: SD handle
* @param pWriteBuffer: pointer to the buffer that will contain the data to transmit * @param pWriteBuffer: pointer to the buffer that will contain the data to transmit
* @param WriteAddr: Address from where data is to be read * @param BlockNumber: Block number to where data is to be written (byte address = BlockNumber * BlockSize)
* @param BlockSize: the SD card Data block size * @param BlockSize: the SD card Data block size
* This parameter should be 512. * This parameter should be 512.
* @param NumberOfBlocks: Number of blocks to write * @param NumberOfBlocks: Number of blocks to write
* @retval SD Card error state * @retval SD Card error state
*/ */
HAL_SD_ErrorTypedef HAL_SD_WriteBlocks_DMA(SD_HandleTypeDef *hsd, uint32_t *pWriteBuffer, uint64_t WriteAddr, uint32_t BlockSize, uint32_t NumberOfBlocks) HAL_SD_ErrorTypedef HAL_SD_WriteBlocks_BlockNumber_DMA(SD_HandleTypeDef *hsd, uint32_t *pWriteBuffer, uint32_t BlockNumber, uint32_t BlockSize, uint32_t NumberOfBlocks)
{ {
SDIO_CmdInitTypeDef sdio_cmdinitstructure; SDIO_CmdInitTypeDef sdio_cmdinitstructure;
SDIO_DataInitTypeDef sdio_datainitstructure; SDIO_DataInitTypeDef sdio_datainitstructure;
@ -1015,10 +1033,16 @@ HAL_SD_ErrorTypedef HAL_SD_WriteBlocks_DMA(SD_HandleTypeDef *hsd, uint32_t *pWri
/* Enable SDIO DMA transfer */ /* Enable SDIO DMA transfer */
__HAL_SD_SDIO_DMA_ENABLE(); __HAL_SD_SDIO_DMA_ENABLE();
uint32_t WriteAddr;
if (hsd->CardType == HIGH_CAPACITY_SD_CARD) if (hsd->CardType == HIGH_CAPACITY_SD_CARD)
{ {
BlockSize = 512; BlockSize = 512;
WriteAddr /= 512; WriteAddr = BlockNumber;
}
else
{
// should not overflow for standard-capacity cards
WriteAddr = BlockNumber * BlockSize;
} }
/* Set Block Size for Card */ /* Set Block Size for Card */
@ -1049,7 +1073,7 @@ HAL_SD_ErrorTypedef HAL_SD_WriteBlocks_DMA(SD_HandleTypeDef *hsd, uint32_t *pWri
sdio_cmdinitstructure.CmdIndex = SD_CMD_WRITE_MULT_BLOCK; sdio_cmdinitstructure.CmdIndex = SD_CMD_WRITE_MULT_BLOCK;
} }
sdio_cmdinitstructure.Argument = (uint32_t)WriteAddr; sdio_cmdinitstructure.Argument = WriteAddr;
SDIO_SendCommand(hsd->Instance, &sdio_cmdinitstructure); SDIO_SendCommand(hsd->Instance, &sdio_cmdinitstructure);
/* Check for error conditions */ /* Check for error conditions */

104
stmhal/sdcard.c
View File

@ -141,54 +141,46 @@ uint64_t sdcard_get_capacity_in_bytes(void) {
return cardinfo.CardCapacity; return cardinfo.CardCapacity;
} }
bool sdcard_read_blocks(uint8_t *dest, uint32_t block_num, uint32_t num_blocks) { mp_uint_t sdcard_read_blocks(uint8_t *dest, uint32_t block_num, uint32_t num_blocks) {
// check that dest pointer is aligned on a 4-byte boundary // check that dest pointer is aligned on a 4-byte boundary
if (((uint32_t)dest & 3) != 0) { if (((uint32_t)dest & 3) != 0) {
return false; return SD_ERROR;
} }
// check that SD card is initialised // check that SD card is initialised
if (sd_handle.Instance == NULL) { if (sd_handle.Instance == NULL) {
return false; return SD_ERROR;
} }
// We must disable IRQs because the SDIO peripheral has a small FIFO // We must disable IRQs because the SDIO peripheral has a small FIFO
// buffer and we can't let it fill up in the middle of a read. // buffer and we can't let it fill up in the middle of a read.
// This will not be needed when SD uses DMA for transfer. // This will not be needed when SD uses DMA for transfer.
__disable_irq(); mp_uint_t atomic_state = MICROPY_BEGIN_ATOMIC_SECTION();
HAL_SD_ErrorTypedef err = HAL_SD_ReadBlocks(&sd_handle, (uint32_t*)dest, (uint64_t)block_num * SDCARD_BLOCK_SIZE, SDCARD_BLOCK_SIZE, num_blocks); HAL_SD_ErrorTypedef err = HAL_SD_ReadBlocks_BlockNumber(&sd_handle, (uint32_t*)dest, block_num, SDCARD_BLOCK_SIZE, num_blocks);
__enable_irq(); MICROPY_END_ATOMIC_SECTION(atomic_state);
if (err != SD_OK) { return err;
return false;
}
return true;
} }
bool sdcard_write_blocks(const uint8_t *src, uint32_t block_num, uint32_t num_blocks) { mp_uint_t sdcard_write_blocks(const uint8_t *src, uint32_t block_num, uint32_t num_blocks) {
// check that src pointer is aligned on a 4-byte boundary // check that src pointer is aligned on a 4-byte boundary
if (((uint32_t)src & 3) != 0) { if (((uint32_t)src & 3) != 0) {
return false; return SD_ERROR;
} }
// check that SD card is initialised // check that SD card is initialised
if (sd_handle.Instance == NULL) { if (sd_handle.Instance == NULL) {
return false; return SD_ERROR;
} }
// We must disable IRQs because the SDIO peripheral has a small FIFO // We must disable IRQs because the SDIO peripheral has a small FIFO
// buffer and we can't let it drain to empty in the middle of a write. // buffer and we can't let it drain to empty in the middle of a write.
// This will not be needed when SD uses DMA for transfer. // This will not be needed when SD uses DMA for transfer.
__disable_irq(); mp_uint_t atomic_state = MICROPY_BEGIN_ATOMIC_SECTION();
HAL_SD_ErrorTypedef err = HAL_SD_WriteBlocks(&sd_handle, (uint32_t*)src, (uint64_t)block_num * SDCARD_BLOCK_SIZE, SDCARD_BLOCK_SIZE, num_blocks); HAL_SD_ErrorTypedef err = HAL_SD_WriteBlocks_BlockNumber(&sd_handle, (uint32_t*)src, block_num, SDCARD_BLOCK_SIZE, num_blocks);
__enable_irq(); MICROPY_END_ATOMIC_SECTION(atomic_state);
if (err != SD_OK) { return err;
return false;
}
return true;
} }
#if 0 #if 0
@ -205,7 +197,7 @@ bool sdcard_read_blocks_dma(uint8_t *dest, uint32_t block_num, uint32_t num_bloc
} }
// do the read // do the read
if (HAL_SD_ReadBlocks_DMA(&sd_handle, (uint32_t*)dest, (uint64_t)block_num * SDCARD_BLOCK_SIZE, SDCARD_BLOCK_SIZE) != SD_OK) { if (HAL_SD_ReadBlocks_BlockNumber_DMA(&sd_handle, (uint32_t*)dest, block_num, SDCARD_BLOCK_SIZE) != SD_OK) {
return false; return false;
} }
@ -230,7 +222,7 @@ bool sdcard_write_blocks_dma(const uint8_t *src, uint32_t block_num, uint32_t nu
SD_Error status; SD_Error status;
status = HAL_SD_WriteBlock_DMA(&sd_handle, (uint32_t*)src, (uint64_t)block_num * SDCARD_BLOCK_SIZE, SDCARD_BLOCK_SIZE, num_blocks); status = HAL_SD_WriteBlocks_BlockNumber_DMA(&sd_handle, (uint32_t*)src, block_num, SDCARD_BLOCK_SIZE, num_blocks);
if (status != SD_OK) { if (status != SD_OK) {
return false; return false;
} }
@ -247,14 +239,17 @@ bool sdcard_write_blocks_dma(const uint8_t *src, uint32_t block_num, uint32_t nu
/******************************************************************************/ /******************************************************************************/
// Micro Python bindings // Micro Python bindings
//
// Note: these function are a bit ad-hoc at the moment and are mainly intended
// for testing purposes. In the future SD should be a proper class with a
// consistent interface and methods to mount/unmount it.
static mp_obj_t sd_present(mp_obj_t self) { STATIC mp_obj_t sd_present(mp_obj_t self) {
return MP_BOOL(sdcard_is_present()); return MP_BOOL(sdcard_is_present());
} }
STATIC MP_DEFINE_CONST_FUN_OBJ_1(sd_present_obj, sd_present);
static MP_DEFINE_CONST_FUN_OBJ_1(sd_present_obj, sd_present); STATIC mp_obj_t sd_power(mp_obj_t self, mp_obj_t state) {
static mp_obj_t sd_power(mp_obj_t self, mp_obj_t state) {
bool result; bool result;
if (mp_obj_is_true(state)) { if (mp_obj_is_true(state)) {
result = sdcard_power_on(); result = sdcard_power_on();
@ -264,40 +259,59 @@ static mp_obj_t sd_power(mp_obj_t self, mp_obj_t state) {
} }
return MP_BOOL(result); return MP_BOOL(result);
} }
STATIC MP_DEFINE_CONST_FUN_OBJ_2(sd_power_obj, sd_power);
static MP_DEFINE_CONST_FUN_OBJ_2(sd_power_obj, sd_power); STATIC mp_obj_t sd_info(mp_obj_t self) {
HAL_SD_ErrorTypedef HAL_SD_Init(SD_HandleTypeDef *hsd, HAL_SD_CardInfoTypedef *SDCardInfo);
static mp_obj_t sd_read(mp_obj_t self, mp_obj_t block_num) { if (sd_handle.Instance == NULL) {
uint8_t *dest = m_new(uint8_t, SDCARD_BLOCK_SIZE);
if (!sdcard_read_blocks(dest, mp_obj_get_int(block_num), 1)) {
m_free(dest, SDCARD_BLOCK_SIZE);
return mp_const_none; return mp_const_none;
} }
HAL_SD_CardInfoTypedef cardinfo;
HAL_SD_Get_CardInfo(&sd_handle, &cardinfo);
// cardinfo.SD_csd and cardinfo.SD_cid have lots of info but we don't use them
mp_obj_t tuple[3] = {
mp_obj_new_int_from_ull(cardinfo.CardCapacity),
mp_obj_new_int_from_uint(cardinfo.CardBlockSize),
mp_obj_new_int(cardinfo.CardType),
};
return mp_obj_new_tuple(3, tuple);
}
STATIC MP_DEFINE_CONST_FUN_OBJ_1(sd_info_obj, sd_info);
STATIC mp_obj_t sd_read(mp_obj_t self, mp_obj_t block_num) {
uint8_t *dest = m_new(uint8_t, SDCARD_BLOCK_SIZE);
mp_uint_t ret = sdcard_read_blocks(dest, mp_obj_get_int(block_num), 1);
if (ret != 0) {
m_free(dest, SDCARD_BLOCK_SIZE);
nlr_raise(mp_obj_new_exception_msg_varg(&mp_type_Exception, "sdcard_read_blocks failed [%u]", ret));
}
return mp_obj_new_bytearray_by_ref(SDCARD_BLOCK_SIZE, dest); return mp_obj_new_bytearray_by_ref(SDCARD_BLOCK_SIZE, dest);
} }
STATIC MP_DEFINE_CONST_FUN_OBJ_2(sd_read_obj, sd_read);
static MP_DEFINE_CONST_FUN_OBJ_2(sd_read_obj, sd_read); STATIC mp_obj_t sd_write(mp_obj_t self, mp_obj_t block_num, mp_obj_t data) {
static mp_obj_t sd_write(mp_obj_t self, mp_obj_t block_num, mp_obj_t source) {
mp_buffer_info_t bufinfo; mp_buffer_info_t bufinfo;
uint8_t tmp[1]; mp_get_buffer_raise(data, &bufinfo, MP_BUFFER_READ);
pyb_buf_get_for_send(source, &bufinfo, tmp);
if (bufinfo.len % SDCARD_BLOCK_SIZE != 0) { if (bufinfo.len % SDCARD_BLOCK_SIZE != 0) {
nlr_raise(mp_obj_new_exception_msg_varg(&mp_type_ValueError, "writes must be aligned to SDCARD_BLOCK_SIZE (%d) bytes", SDCARD_BLOCK_SIZE)); nlr_raise(mp_obj_new_exception_msg_varg(&mp_type_ValueError, "writes must be a multiple of %d bytes", SDCARD_BLOCK_SIZE));
} }
if (!sdcard_write_blocks(bufinfo.buf, mp_obj_get_int(block_num), bufinfo.len / SDCARD_BLOCK_SIZE)) { mp_uint_t ret = sdcard_write_blocks(bufinfo.buf, mp_obj_get_int(block_num), bufinfo.len / SDCARD_BLOCK_SIZE);
nlr_raise(mp_obj_new_exception_msg_varg(&mp_type_Exception, "sdcard_write_blocks failed"));
if (ret != 0) {
nlr_raise(mp_obj_new_exception_msg_varg(&mp_type_Exception, "sdcard_write_blocks failed [%u]", ret));
} }
return mp_const_none; return mp_const_none;
} }
STATIC MP_DEFINE_CONST_FUN_OBJ_3(sd_write_obj, sd_write);
static MP_DEFINE_CONST_FUN_OBJ_3(sd_write_obj, sd_write);
STATIC const mp_map_elem_t sdcard_locals_dict_table[] = { STATIC const mp_map_elem_t sdcard_locals_dict_table[] = {
{ MP_OBJ_NEW_QSTR(MP_QSTR_present), (mp_obj_t)&sd_present_obj }, { MP_OBJ_NEW_QSTR(MP_QSTR_present), (mp_obj_t)&sd_present_obj },
{ MP_OBJ_NEW_QSTR(MP_QSTR_power), (mp_obj_t)&sd_power_obj }, { MP_OBJ_NEW_QSTR(MP_QSTR_power), (mp_obj_t)&sd_power_obj },
{ MP_OBJ_NEW_QSTR(MP_QSTR_info), (mp_obj_t)&sd_info_obj },
{ MP_OBJ_NEW_QSTR(MP_QSTR_read), (mp_obj_t)&sd_read_obj }, { MP_OBJ_NEW_QSTR(MP_QSTR_read), (mp_obj_t)&sd_read_obj },
{ MP_OBJ_NEW_QSTR(MP_QSTR_write), (mp_obj_t)&sd_write_obj }, { MP_OBJ_NEW_QSTR(MP_QSTR_write), (mp_obj_t)&sd_write_obj },
}; };

6
stmhal/sdcard.h
View File

@ -32,7 +32,9 @@ bool sdcard_is_present(void);
bool sdcard_power_on(void); bool sdcard_power_on(void);
void sdcard_power_off(void); void sdcard_power_off(void);
uint64_t sdcard_get_capacity_in_bytes(void); uint64_t sdcard_get_capacity_in_bytes(void);
bool sdcard_read_blocks(uint8_t *dest, uint32_t block_num, uint32_t num_blocks);
bool sdcard_write_blocks(const uint8_t *src, uint32_t block_num, uint32_t num_blocks); // these return 0 on success, non-zero on error
mp_uint_t sdcard_read_blocks(uint8_t *dest, uint32_t block_num, uint32_t num_blocks);
mp_uint_t sdcard_write_blocks(const uint8_t *src, uint32_t block_num, uint32_t num_blocks);
extern const struct _mp_obj_base_t pyb_sdcard_obj; extern const struct _mp_obj_base_t pyb_sdcard_obj;

4
stmhal/usbd_msc_storage.c
View File

@ -321,7 +321,7 @@ int8_t SDCARD_STORAGE_PreventAllowMediumRemoval(uint8_t lun, uint8_t param) {
* @retval Status * @retval Status
*/ */
int8_t SDCARD_STORAGE_Read(uint8_t lun, uint8_t *buf, uint32_t blk_addr, uint16_t blk_len) { int8_t SDCARD_STORAGE_Read(uint8_t lun, uint8_t *buf, uint32_t blk_addr, uint16_t blk_len) {
if (!sdcard_read_blocks(buf, blk_addr, blk_len)) { if (sdcard_read_blocks(buf, blk_addr, blk_len) != 0) {
return -1; return -1;
} }
return 0; return 0;
@ -336,7 +336,7 @@ int8_t SDCARD_STORAGE_Read(uint8_t lun, uint8_t *buf, uint32_t blk_addr, uint16_
* @retval Status * @retval Status
*/ */
int8_t SDCARD_STORAGE_Write(uint8_t lun, uint8_t *buf, uint32_t blk_addr, uint16_t blk_len) { int8_t SDCARD_STORAGE_Write(uint8_t lun, uint8_t *buf, uint32_t blk_addr, uint16_t blk_len) {
if (!sdcard_write_blocks(buf, blk_addr, blk_len)) { if (sdcard_write_blocks(buf, blk_addr, blk_len) != 0) {
return -1; return -1;
} }
return 0; return 0;

2
stmhal/usbdev/class/cdc_msc_hid/inc/usbd_cdc_msc_hid.h
View File

@ -83,7 +83,7 @@ typedef struct {
uint16_t scsi_blk_size; uint16_t scsi_blk_size;
uint32_t scsi_blk_nbr; uint32_t scsi_blk_nbr;
uint32_t scsi_blk_addr; uint32_t scsi_blk_addr_in_blks;
uint32_t scsi_blk_len; uint32_t scsi_blk_len;
} USBD_MSC_BOT_HandleTypeDef; } USBD_MSC_BOT_HandleTypeDef;

23
stmhal/usbdev/class/cdc_msc_hid/src/usbd_msc_scsi.c
View File

@ -510,7 +510,7 @@ static int8_t SCSI_Read10(USBD_HandleTypeDef *pdev, uint8_t lun , uint8_t *para
return -1; return -1;
} }
hmsc->scsi_blk_addr = (params[2] << 24) | \ hmsc->scsi_blk_addr_in_blks = (params[2] << 24) | \
(params[3] << 16) | \ (params[3] << 16) | \
(params[4] << 8) | \ (params[4] << 8) | \
params[5]; params[5];
@ -520,13 +520,12 @@ static int8_t SCSI_Read10(USBD_HandleTypeDef *pdev, uint8_t lun , uint8_t *para
if( SCSI_CheckAddressRange(pdev, lun, hmsc->scsi_blk_addr, hmsc->scsi_blk_len) < 0) if( SCSI_CheckAddressRange(pdev, lun, hmsc->scsi_blk_addr_in_blks, hmsc->scsi_blk_len) < 0)
{ {
return -1; /* error */ return -1; /* error */
} }
hmsc->bot_state = USBD_BOT_DATA_IN; hmsc->bot_state = USBD_BOT_DATA_IN;
hmsc->scsi_blk_addr *= hmsc->scsi_blk_size;
hmsc->scsi_blk_len *= hmsc->scsi_blk_size; hmsc->scsi_blk_len *= hmsc->scsi_blk_size;
/* cases 4,5 : Hi <> Dn */ /* cases 4,5 : Hi <> Dn */
@ -591,7 +590,7 @@ static int8_t SCSI_Write10 (USBD_HandleTypeDef *pdev, uint8_t lun , uint8_t *pa
} }
hmsc->scsi_blk_addr = (params[2] << 24) | \ hmsc->scsi_blk_addr_in_blks = (params[2] << 24) | \
(params[3] << 16) | \ (params[3] << 16) | \
(params[4] << 8) | \ (params[4] << 8) | \
params[5]; params[5];
@ -601,13 +600,12 @@ static int8_t SCSI_Write10 (USBD_HandleTypeDef *pdev, uint8_t lun , uint8_t *pa
/* check if LBA address is in the right range */ /* check if LBA address is in the right range */
if(SCSI_CheckAddressRange(pdev, if(SCSI_CheckAddressRange(pdev,
lun, lun,
hmsc->scsi_blk_addr, hmsc->scsi_blk_addr_in_blks,
hmsc->scsi_blk_len) < 0) hmsc->scsi_blk_len) < 0)
{ {
return -1; /* error */ return -1; /* error */
} }
hmsc->scsi_blk_addr *= hmsc->scsi_blk_size;
hmsc->scsi_blk_len *= hmsc->scsi_blk_size; hmsc->scsi_blk_len *= hmsc->scsi_blk_size;
/* cases 3,11,13 : Hn,Ho <> D0 */ /* cases 3,11,13 : Hn,Ho <> D0 */
@ -656,9 +654,12 @@ static int8_t SCSI_Verify10(USBD_HandleTypeDef *pdev, uint8_t lun , uint8_t *pa
return -1; /* Error, Verify Mode Not supported*/ return -1; /* Error, Verify Mode Not supported*/
} }
hmsc->scsi_blk_addr_in_blks = (params[2] << 24) | (params[3] << 16) | (params[4] << 8) | params[5];
hmsc->scsi_blk_len = (params[7] << 8) | params[8];
if(SCSI_CheckAddressRange(pdev, if(SCSI_CheckAddressRange(pdev,
lun, lun,
hmsc->scsi_blk_addr, hmsc->scsi_blk_addr_in_blks,
hmsc->scsi_blk_len) < 0) hmsc->scsi_blk_len) < 0)
{ {
return -1; /* error */ return -1; /* error */
@ -705,7 +706,7 @@ static int8_t SCSI_ProcessRead (USBD_HandleTypeDef *pdev, uint8_t lun)
if( ((USBD_StorageTypeDef *)pdev->pUserData)->Read(lun , if( ((USBD_StorageTypeDef *)pdev->pUserData)->Read(lun ,
hmsc->bot_data, hmsc->bot_data,
hmsc->scsi_blk_addr / hmsc->scsi_blk_size, hmsc->scsi_blk_addr_in_blks,
len / hmsc->scsi_blk_size) < 0) len / hmsc->scsi_blk_size) < 0)
{ {
@ -723,7 +724,7 @@ static int8_t SCSI_ProcessRead (USBD_HandleTypeDef *pdev, uint8_t lun)
len); len);
hmsc->scsi_blk_addr += len; hmsc->scsi_blk_addr_in_blks += len / hmsc->scsi_blk_size;
hmsc->scsi_blk_len -= len; hmsc->scsi_blk_len -= len;
/* case 6 : Hi = Di */ /* case 6 : Hi = Di */
@ -752,7 +753,7 @@ static int8_t SCSI_ProcessWrite (USBD_HandleTypeDef *pdev, uint8_t lun)
if(((USBD_StorageTypeDef *)pdev->pUserData)->Write(lun , if(((USBD_StorageTypeDef *)pdev->pUserData)->Write(lun ,
hmsc->bot_data, hmsc->bot_data,
hmsc->scsi_blk_addr / hmsc->scsi_blk_size, hmsc->scsi_blk_addr_in_blks,
len / hmsc->scsi_blk_size) < 0) len / hmsc->scsi_blk_size) < 0)
{ {
SCSI_SenseCode(pdev, SCSI_SenseCode(pdev,
@ -763,7 +764,7 @@ static int8_t SCSI_ProcessWrite (USBD_HandleTypeDef *pdev, uint8_t lun)
} }
hmsc->scsi_blk_addr += len; hmsc->scsi_blk_addr_in_blks += len / hmsc->scsi_blk_size;
hmsc->scsi_blk_len -= len; hmsc->scsi_blk_len -= len;
/* case 12 : Ho = Do */ /* case 12 : Ho = Do */