commit a10e2f2f6db8f86eaca1cf3d00269463da4d6434
author Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com> Thu Dec 29 16:05:38 2011 +0530
committer Kalle Valo <kvalo@qca.qualcomm.com> Mon Jan 02 18:34:12 2012 +0200
tree c6d0a4f8bfd607f7e1e1e0290e22249600381d8d
parent 351de2835d6429548feb8cca9a17497ec3474f41

ath6kl: Add a module parameter to enable uart debug

To enable firmware debug messages through uart interface,

modprobe ath6kl_sdio uart_debug=1.

Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>

drivers/net/wireless/ath/ath6kl/init.c

diff --git a/drivers/net/wireless/ath/ath6kl/init.c b/drivers/net/wireless/ath/ath6kl/init.c
index e742793..a481b6a 100644
--- a/drivers/net/wireless/ath/ath6kl/init.c
+++ b/drivers/net/wireless/ath/ath6kl/init.c
@@ -28,10 +28,12 @@
 unsigned int debug_mask;
 static unsigned int testmode;
 static bool suspend_cutpower;
+static unsigned int uart_debug;
 
 module_param(debug_mask, uint, 0644);
 module_param(testmode, uint, 0644);
 module_param(suspend_cutpower, bool, 0444);
+module_param(uart_debug, uint, 0644);
 
 static const struct ath6kl_hw hw_list[] = {
 	{
@@ -464,6 +466,13 @@
 	u8 fw_iftype, fw_mode = 0, fw_submode = 0;
 	int i, status;
 
+	param = uart_debug;
+	if (ath6kl_bmi_write(ar, ath6kl_get_hi_item_addr(ar,
+			     HI_ITEM(hi_serial_enable)), (u8 *)&param, 4)) {
+		ath6kl_err("bmi_write_memory for uart debug failed\n");
+		return -EIO;
+	}
+
 	/*
 	 * Note: Even though the firmware interface type is
 	 * chosen as BSS_STA for all three interfaces, can