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iwlwifi: mvm: change the format of the SRAM dump

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As a debug tool, we dump the SRAM from the device when an
error occurs. The main users of this want it in a different
format, so change the format to suit their needs.
Also - add a short delay between the prints to make sure
that the user space logger can catch up.

This happens only when the firmware asserts, and only when
fw_restart is set to 0 which is typically a testing
configuration.

Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
This commit is contained in:
Emmanuel Grumbach 2014-01-15 10:01:29 +02:00
parent f6415f6bcf
commit fc1471f061
1 changed files with 8 additions and 2 deletions
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10
drivers/net/wireless/iwlwifi/mvm/utils.c
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@ -457,7 +457,8 @@ void iwl_mvm_dump_sram(struct iwl_mvm *mvm)
{
const struct fw_img *img;
int ofs, len = 0;
u8 *buf;
int i;
__le32 *buf;
if (!mvm->ucode_loaded)
return;
@ -471,7 +472,12 @@ void iwl_mvm_dump_sram(struct iwl_mvm *mvm)
return;
iwl_trans_read_mem_bytes(mvm->trans, ofs, buf, len);
iwl_print_hex_error(mvm->trans, buf, len);
len = len >> 2;
for (i = 0; i < len; i++) {
IWL_ERR(mvm, "0x%08X\n", le32_to_cpu(buf[i]));
/* Add a small delay to let syslog catch up */
udelay(10);
}
kfree(buf);
}