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path: root/drivers/net/wireless/rtlwifi/usb.c
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Diffstat (limited to 'drivers/net/wireless/rtlwifi/usb.c')
-rw-r--r--drivers/net/wireless/rtlwifi/usb.c55
1 files changed, 47 insertions, 8 deletions
diff --git a/drivers/net/wireless/rtlwifi/usb.c b/drivers/net/wireless/rtlwifi/usb.c
index 54cb8a6..e956fa7 100644
--- a/drivers/net/wireless/rtlwifi/usb.c
+++ b/drivers/net/wireless/rtlwifi/usb.c
@@ -34,13 +34,14 @@
#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
#define REALTEK_USB_VENQT_CMD_REQ 0x05
#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)
{
@@ -82,6 +83,7 @@ static int _usbctrl_vendorreq_async_write(struct usb_device *udev, u8 request,
dr->wValue = cpu_to_le16(value);
dr->wIndex = cpu_to_le16(index);
dr->wLength = cpu_to_le16(len);
+ /* data are already in little-endian order */
memcpy(buf, pdata, len);
usb_fill_control_urb(urb, udev, pipe,
(unsigned char *)dr, buf, len,
@@ -100,16 +102,28 @@ static int _usbctrl_vendorreq_sync_read(struct usb_device *udev, u8 request,
unsigned int pipe;
int status;
u8 reqtype;
+ int vendorreq_times = 0;
+ static int count;
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 */
+ do {
+ 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;
+ }
+ } while (++vendorreq_times < MAX_USBCTRL_VENDORREQ_TIMES);
- if (status < 0)
+ if (status < 0 && count++ < 4)
pr_err("reg 0x%x, usbctrl_vendorreq TimeOut! status:0x%x value=0x%x\n",
- value, status, *(u32 *)pdata);
+ value, status, le32_to_cpu(*(u32 *)pdata));
return status;
}
@@ -129,7 +143,7 @@ static u32 _usb_read_sync(struct usb_device *udev, u32 addr, u16 len)
wvalue = (u16)addr;
_usbctrl_vendorreq_sync_read(udev, request, wvalue, index, data, len);
- ret = *data;
+ ret = le32_to_cpu(*data);
kfree(data);
return ret;
}
@@ -161,12 +175,12 @@ static void _usb_write_async(struct usb_device *udev, u32 addr, u32 val,
u8 request;
u16 wvalue;
u16 index;
- u32 data;
+ __le32 data;
request = REALTEK_USB_VENQT_CMD_REQ;
index = REALTEK_USB_VENQT_CMD_IDX; /* n/a */
wvalue = (u16)(addr&0x0000ffff);
- data = val;
+ data = cpu_to_le32(val);
_usbctrl_vendorreq_async_write(udev, request, wvalue, index, &data,
len);
}
@@ -192,6 +206,30 @@ static void _usb_write32_async(struct rtl_priv *rtlpriv, u32 addr, u32 val)
_usb_write_async(to_usb_device(dev), addr, val, 4);
}
+static void _usb_writeN_sync(struct rtl_priv *rtlpriv, u32 addr, void *data,
+ u16 len)
+{
+ struct device *dev = rtlpriv->io.dev;
+ struct usb_device *udev = to_usb_device(dev);
+ u8 request = REALTEK_USB_VENQT_CMD_REQ;
+ u8 reqtype = REALTEK_USB_VENQT_WRITE;
+ u16 wvalue;
+ u16 index = REALTEK_USB_VENQT_CMD_IDX;
+ int pipe = usb_sndctrlpipe(udev, 0); /* write_out */
+ u8 *buffer;
+ dma_addr_t dma_addr;
+
+ wvalue = (u16)(addr&0x0000ffff);
+ buffer = usb_alloc_coherent(udev, (size_t)len, GFP_ATOMIC, &dma_addr);
+ if (!buffer)
+ return;
+ memcpy(buffer, data, len);
+ usb_control_msg(udev, pipe, request, reqtype, wvalue,
+ index, buffer, len, 50);
+
+ usb_free_coherent(udev, (size_t)len, buffer, dma_addr);
+}
+
static void _rtl_usb_io_handler_init(struct device *dev,
struct ieee80211_hw *hw)
{
@@ -205,6 +243,7 @@ static void _rtl_usb_io_handler_init(struct device *dev,
rtlpriv->io.read8_sync = _usb_read8_sync;
rtlpriv->io.read16_sync = _usb_read16_sync;
rtlpriv->io.read32_sync = _usb_read32_sync;
+ rtlpriv->io.writeN_sync = _usb_writeN_sync;
}
static void _rtl_usb_io_handler_release(struct ieee80211_hw *hw)
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