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Fix SEGFAULTs and broken error handling for flash programming w/working area

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git-svn-id: svn://svn.berlios.de/openocd/trunk@2499 b42882b7-edfa-0310-969c-e2dbd0fdcd60
This commit is contained in:
oharboe 2009-07-08 18:29:03 +00:00
parent 13e6aa6e03
commit 1ee66e0ce7
1 changed files with 31 additions and 15 deletions
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46
src/flash/aduc702x.c
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@ -193,6 +193,11 @@ static int aduc702x_protect(struct flash_bank_s *bank, int set, int first, int l
return ERROR_FLASH_OPERATION_FAILED;
}
/* If this fn returns ERROR_TARGET_RESOURCE_NOT_AVAILABLE, then the caller can fall
* back to another mechanism that does not require onboard RAM
*
* Caller should not check for other return values specifically
*/
static int aduc702x_write_block(struct flash_bank_s *bank, uint8_t *buffer, uint32_t offset, uint32_t count)
{
aduc702x_flash_bank_t *aduc702x_info = bank->driver_priv;
@ -204,6 +209,12 @@ static int aduc702x_write_block(struct flash_bank_s *bank, uint8_t *buffer, uint
armv4_5_algorithm_t armv4_5_info;
int retval = ERROR_OK;
if (((count%2)!=0)||((offset%2)!=0))
{
LOG_ERROR("write block must be multiple of two bytes in offset & length");
return ERROR_FAIL;
}
/* parameters:
r0 - address of source data (absolute)
@ -249,8 +260,12 @@ static int aduc702x_write_block(struct flash_bank_s *bank, uint8_t *buffer, uint
return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
};
target_write_buffer(target, aduc702x_info->write_algorithm->address,
retval=target_write_buffer(target, aduc702x_info->write_algorithm->address,
sizeof(aduc702x_flash_write_code), (uint8_t*)aduc702x_flash_write_code);
if (retval!=ERROR_OK)
{
return retval;
}
/* memory buffer */
while (target_alloc_working_area(target, buffer_size, &source) != ERROR_OK)
@ -279,12 +294,16 @@ static int aduc702x_write_block(struct flash_bank_s *bank, uint8_t *buffer, uint
while (count > 0)
{
uint32_t thisrun_count = (count > (buffer_size / 2)) ? (buffer_size / 2) : count;
uint32_t thisrun_count = (count > buffer_size) ? buffer_size : count;
target_write_buffer(target, source->address, thisrun_count * 2, buffer);
retval=target_write_buffer(target, source->address, thisrun_count, buffer);
if (retval!=ERROR_OK)
{
break;
}
buf_set_u32(reg_params[0].value, 0, 32, source->address);
buf_set_u32(reg_params[1].value, 0, 32, thisrun_count);
buf_set_u32(reg_params[1].value, 0, 32, thisrun_count/2);
buf_set_u32(reg_params[2].value, 0, 32, address);
buf_set_u32(reg_params[4].value, 0, 32, 0xFFFFF800);
@ -294,17 +313,19 @@ static int aduc702x_write_block(struct flash_bank_s *bank, uint8_t *buffer, uint
10000, &armv4_5_info)) != ERROR_OK)
{
LOG_ERROR("error executing aduc702x flash write algorithm");
retval = ERROR_FLASH_OPERATION_FAILED;
break;
}
if ((buf_get_u32(reg_params[3].value, 0, 32) & 1) != 1) {
retval = ERROR_FLASH_OPERATION_FAILED;
if ((buf_get_u32(reg_params[3].value, 0, 32) & 1) != 1)
{
/* FIX!!!! what does this mean??? replace w/sensible error message */
LOG_ERROR("aduc702x detected error writing flash");
retval = ERROR_FAIL;
break;
}
buffer += thisrun_count * 2;
address += thisrun_count * 2;
buffer += thisrun_count;
address += thisrun_count;
count -= thisrun_count;
}
@ -382,14 +403,9 @@ int aduc702x_write(struct flash_bank_s *bank, uint8_t *buffer, uint32_t offset,
return ERROR_FLASH_OPERATION_FAILED;
}
}
else if (retval == ERROR_FLASH_OPERATION_FAILED)
{
LOG_ERROR("flash block writing failed");
return ERROR_FLASH_OPERATION_FAILED;
}
}
return ERROR_OK;
return retval;
}
static int aduc702x_probe(struct flash_bank_s *bank)