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SimonQian <simonqian@SimonQian.com>:

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Add svf_get_mask_u32 to generate a mask according to bitlen.
Fix this bug in other functions except for svf_check_tdo.


git-svn-id: svn://svn.berlios.de/openocd/trunk@1914 b42882b7-edfa-0310-969c-e2dbd0fdcd60
This commit is contained in:
zwelch 2009-05-26 01:22:23 +00:00
parent 83902cc984
commit fe465bd33e
1 changed files with 24 additions and 10 deletions
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34
src/svf/svf.c
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@ -218,6 +218,26 @@ void svf_free_xxd_para(svf_xxr_para_t *para)
}
}
unsigned svf_get_mask_u32(int bitlen)
{
u32 bitmask;
if (bitlen < 0)
{
bitmask = 0;
}
else if (bitlen >= 32)
{
bitmask = 0xFFFFFFFF;
}
else
{
bitmask = (1 << bitlen) - 1;
}
return bitmask;
}
static const char* tap_state_svf_name(tap_state_t state)
{
const char* ret;
@ -667,14 +687,8 @@ static int svf_check_tdo(void)
{
unsigned bitmask;
unsigned received, expected, tapmask;
if (svf_check_tdo_para[i].bit_len >= 32)
{
bitmask = 0xFFFFFFFF;
}
else
{
bitmask = (1 << svf_check_tdo_para[i].bit_len) - 1;
}
bitmask = svf_get_mask_u32(svf_check_tdo_para[i].bit_len);
memcpy(&received, svf_tdi_buffer + index, sizeof(unsigned));
memcpy(&expected, svf_tdo_buffer + index, sizeof(unsigned));
memcpy(&tapmask, svf_mask_buffer + index, sizeof(unsigned));
@ -890,7 +904,7 @@ static int svf_run_command(struct command_context_s *cmd_ctx, char *cmd_str)
LOG_ERROR("fail to parse hex value");
return ERROR_FAIL;
}
LOG_DEBUG("\t%s = 0x%X", argus[i], (**(int**)pbuffer_tmp) & ((1 << (xxr_para_tmp->len)) - 1));
LOG_DEBUG("\t%s = 0x%X", argus[i], (**(int**)pbuffer_tmp) & svf_get_mask_u32(xxr_para_tmp->len));
}
// If a command changes the length of the last scan of the same type and the MASK parameter is absent,
// the mask pattern used is all cares
@ -1403,7 +1417,7 @@ static int svf_run_command(struct command_context_s *cmd_ctx, char *cmd_str)
int read_value;
memcpy(&read_value, svf_tdi_buffer, sizeof(int));
// in debug mode, data is from index 0
int read_mask = (1 << (svf_check_tdo_para[0].bit_len)) - 1;
int read_mask = svf_get_mask_u32(svf_check_tdo_para[0].bit_len);
LOG_DEBUG("\tTDO read = 0x%X", read_value & read_mask);
}
}