mwifiex: add calibration data download feature
User can provide a text file containing calibration data in hex
format while loading mwifiex module. It will be downloaded to
firmware.
eg. insmod mwifiex.ko cal_data_cfg=cal_data.conf
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/mwifiex/main.c b/drivers/net/wireless/mwifiex/main.c
index eb85186..29d83f0 100644
--- a/drivers/net/wireless/mwifiex/main.c
+++ b/drivers/net/wireless/mwifiex/main.c
@@ -25,6 +25,8 @@
#define VERSION "1.0"
const char driver_version[] = "mwifiex " VERSION " (%s) ";
+static char *cal_data_cfg;
+module_param(cal_data_cfg, charp, 0);
/*
* This function registers the device and performs all the necessary
@@ -336,6 +338,13 @@
dev_notice(adapter->dev, "WLAN FW is active\n");
+ if (cal_data_cfg) {
+ if ((request_firmware(&adapter->cal_data, cal_data_cfg,
+ adapter->dev)) < 0)
+ dev_err(adapter->dev,
+ "Cal data request_firmware() failed\n");
+ }
+
adapter->init_wait_q_woken = false;
ret = mwifiex_init_fw(adapter);
if (ret == -1) {
@@ -390,6 +399,10 @@
pr_debug("info: %s: unregister device\n", __func__);
adapter->if_ops.unregister_dev(adapter);
done:
+ if (adapter->cal_data) {
+ release_firmware(adapter->cal_data);
+ adapter->cal_data = NULL;
+ }
release_firmware(adapter->firmware);
complete(&adapter->fw_load);
return;