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iwlwifi: generic init calibrations framework

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This patch allows variable number of init calibrations and allows
addition new HW.

This patch also fixes critical bug. Only last calibration result
was applied. On reception of one calibration result all the calibration
was freed.

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Zhu Yi <yi.zhu@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Tomas Winkler
2008-09-03 11:26:37 +08:00
committed by John W. Linville
parent 7c95168aba
commit 6e21f2c109
6 changed files with 90 additions and 81 deletions
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60
drivers/net/wireless/iwlwifi/iwl-calib.c
View File

@@ -66,6 +66,66 @@
#include "iwl-core.h"
#include "iwl-calib.h"
/*****************************************************************************
* INIT calibrations framework
*****************************************************************************/
int iwl_send_calib_results(struct iwl_priv *priv)
{
int ret = 0;
int i = 0;
struct iwl_host_cmd hcmd = {
.id = REPLY_PHY_CALIBRATION_CMD,
.meta.flags = CMD_SIZE_HUGE,
};
for (i = 0; i < IWL_CALIB_MAX; i++)
if (priv->calib_results[i].buf) {
hcmd.len = priv->calib_results[i].buf_len;
hcmd.data = priv->calib_results[i].buf;
ret = iwl_send_cmd_sync(priv, &hcmd);
if (ret)
goto err;
}
return 0;
err:
IWL_ERROR("Error %d iteration %d\n", ret, i);
return ret;
}
EXPORT_SYMBOL(iwl_send_calib_results);
int iwl_calib_set(struct iwl_calib_result *res, const u8 *buf, int len)
{
if (res->buf_len != len) {
kfree(res->buf);
res->buf = kzalloc(len, GFP_ATOMIC);
}
if (unlikely(res->buf == NULL))
return -ENOMEM;
res->buf_len = len;
memcpy(res->buf, buf, len);
return 0;
}
EXPORT_SYMBOL(iwl_calib_set);
void iwl_calib_free_results(struct iwl_priv *priv)
{
int i;
for (i = 0; i < IWL_CALIB_MAX; i++) {
kfree(priv->calib_results[i].buf);
priv->calib_results[i].buf = NULL;
priv->calib_results[i].buf_len = 0;
}
}
/*****************************************************************************
* RUNTIME calibrations framework
*****************************************************************************/
/* "false alarms" are signals that our DSP tries to lock onto,
* but then determines that they are either noise, or transmissions
* from a distant wireless network (also "noise", really) that get