From: George <george0505@xxxxxxxxxxx>
The USB driver does not retry reads - allow 10 tries.
Signed-off-by: George <george0505@xxxxxxxxxxx>
Signed-off-by: Larry Finger <Larry.Finger@xxxxxxxxxxxx>
---
drivers/net/wireless/rtlwifi/rtl8192c/fw_common.h | 2 +-
drivers/net/wireless/rtlwifi/usb.c | 18 +++++++++++++++---
2 files changed, 16 insertions(+), 4 deletions(-)
diff --git a/drivers/net/wireless/rtlwifi/rtl8192c/fw_common.h b/drivers/net/wireless/rtlwifi/rtl8192c/fw_common.h
index 3d5823c..fcc4032 100644
--- a/drivers/net/wireless/rtlwifi/rtl8192c/fw_common.h
+++ b/drivers/net/wireless/rtlwifi/rtl8192c/fw_common.h
@@ -32,7 +32,7 @@
#define FW_8192C_SIZE 0x3000
#define FW_8192C_START_ADDRESS 0x1000
-#define FW_8192C_END_ADDRESS 0x3FFF
+#define FW_8192C_END_ADDRESS 0x1FFF
#define FW_8192C_PAGE_SIZE 4096
#define FW_8192C_POLLING_DELAY 5
#define FW_8192C_POLLING_TIMEOUT_COUNT 100
diff --git a/drivers/net/wireless/rtlwifi/usb.c b/drivers/net/wireless/rtlwifi/usb.c
index 54cb8a6..add29e9 100644
--- a/drivers/net/wireless/rtlwifi/usb.c
+++ b/drivers/net/wireless/rtlwifi/usb.c
@@ -34,6 +34,7 @@
#include "usb.h"
#include "base.h"
#include "ps.h"
+#include "rtl8192c/fw_common.h"
#define REALTEK_USB_VENQT_READ 0xC0
#define REALTEK_USB_VENQT_WRITE 0x40
@@ -41,6 +42,7 @@
#define REALTEK_USB_VENQT_CMD_IDX 0x00
#define REALTEK_USB_VENQT_MAX_BUF_SIZE 254
+#define MAX_USBCTRL_VENDORREQ_TIMES 10
static void usbctrl_async_callback(struct urb *urb)
{
@@ -100,13 +102,23 @@ static int _usbctrl_vendorreq_sync_read(struct usb_device *udev, u8 request,
unsigned int pipe;
int status;
u8 reqtype;
+ int vendorreq_times = 0;
pipe = usb_rcvctrlpipe(udev, 0); /* read_in */
reqtype = REALTEK_USB_VENQT_READ;
- status = usb_control_msg(udev, pipe, request, reqtype, value, index,
- pdata, len, 0); /* max. timeout */
-
+ while (++vendorreq_times <= MAX_USBCTRL_VENDORREQ_TIMES) {
+ status = usb_control_msg(udev, pipe, request, reqtype, value,
+ index, pdata, len, 0); /*max. timeout*/
+ if (status < 0) {
+ /* firmware download is checksumed, don't retry */
+ if ((value >= FW_8192C_START_ADDRESS &&
+ value <= FW_8192C_END_ADDRESS))
+ break;
+ } else {
+ break;
+ }
+ }
if (status < 0)
pr_err("reg 0x%x, usbctrl_vendorreq TimeOut! status:0x%x value=0x%x\n",
value, status, *(u32 *)pdata);
--
1.7.7
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