diff options
Diffstat (limited to 'drivers/net/wireless/rtlwifi/usb.c')
| -rw-r--r-- | drivers/net/wireless/rtlwifi/usb.c | 18 |
1 files changed, 15 insertions, 3 deletions
diff --git a/drivers/net/wireless/rtlwifi/usb.c b/drivers/net/wireless/rtlwifi/usb.c index b42c2e2b2055..209105c8e3dc 100644 --- a/drivers/net/wireless/rtlwifi/usb.c +++ b/drivers/net/wireless/rtlwifi/usb.c @@ -33,6 +33,7 @@ #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 @@ -40,6 +41,7 @@ #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) { @@ -99,13 +101,23 @@ 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); |