staging: r8712u: Add the new driver to the mainline kernel

This code is for a completely new version of the Realtek 8192 USB devices
such as the D-Link DWA-130. The Realtek code, which was originally for
Linux, Windows XP and Windows CE, has been stripped of all code not needed
for Linux. In addition, only one additional configuration variable, which
enables AP mode, remains.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Florian Schilhabel <florian.c.schilhabel@googlemail.com>
Tested-by: Frederic Leroy <fredo@starox.org>

1 files changed, 201 insertions, 0 deletions

diff --git a/drivers/staging/rtl8712/usb_ops.c b/drivers/staging/rtl8712/usb_ops.c
new file mode 100644
index 00000000000..5a8b0ebd0b7
--- /dev/null
+++ b/drivers/staging/rtl8712/usb_ops.c
@@ -0,0 +1,201 @@
+/******************************************************************************
+ * usb_ops.c
+ *
+ * Copyright(c) 2007 - 2010 Realtek Corporation. All rights reserved.
+ * Linux device driver for RTL8192SU
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
+ *
+ * Modifications for inclusion into the Linux staging tree are
+ * Copyright(c) 2010 Larry Finger. All rights reserved.
+ *
+ * Contact information:
+ * WLAN FAE <wlanfae@realtek.com>
+ * Larry Finger <Larry.Finger@lwfinger.net>
+ *
+ ******************************************************************************/
+
+#define _HCI_OPS_C_
+
+#include "osdep_service.h"
+#include "drv_types.h"
+#include "osdep_intf.h"
+#include "usb_ops.h"
+#include "recv_osdep.h"
+#include "rtl871x_byteorder.h"
+
+static u8 usb_read8(struct intf_hdl *pintfhdl, u32 addr)
+{
+        u8 request;
+        u8 requesttype;
+        u16 wvalue;
+        u16 index;
+        u16 len;
+        u32 data;
+        struct intf_priv *pintfpriv = pintfhdl->pintfpriv;
+
+        request = 0x05;
+        requesttype = 0x01; /* read_in */
+        index = 0;
+        wvalue = (u16)(addr&0x0000ffff);
+        len = 1;
+        r8712_usbctrl_vendorreq(pintfpriv, request, wvalue, index, &data, len,
+                          requesttype);
+        return (u8)(le32_to_cpu(data)&0x0ff);
+}
+
+static u16 usb_read16(struct intf_hdl *pintfhdl, u32 addr)
+{
+        u8 request;
+        u8 requesttype;
+        u16 wvalue;
+        u16 index;
+        u16 len;
+        u32 data;
+        struct intf_priv *pintfpriv = pintfhdl->pintfpriv;
+
+        request = 0x05;
+        requesttype = 0x01; /* read_in */
+        index = 0;
+        wvalue = (u16)(addr&0x0000ffff);
+        len = 2;
+        r8712_usbctrl_vendorreq(pintfpriv, request, wvalue, index, &data, len,
+                          requesttype);
+        return (u16)(le32_to_cpu(data)&0xffff);
+}
+
+static u32 usb_read32(struct intf_hdl *pintfhdl, u32 addr)
+{
+        u8 request;
+        u8 requesttype;
+        u16 wvalue;
+        u16 index;
+        u16 len;
+        u32 data;
+        struct intf_priv *pintfpriv = pintfhdl->pintfpriv;
+
+        request = 0x05;
+        requesttype = 0x01; /* read_in */
+        index = 0;
+        wvalue = (u16)(addr&0x0000ffff);
+        len = 4;
+        r8712_usbctrl_vendorreq(pintfpriv, request, wvalue, index, &data, len,
+                          requesttype);
+        return le32_to_cpu(data);
+}
+
+static void usb_write8(struct intf_hdl *pintfhdl, u32 addr, u8 val)
+{
+        u8 request;
+        u8 requesttype;
+        u16 wvalue;
+        u16 index;
+        u16 len;
+        u32 data;
+        struct intf_priv *pintfpriv = pintfhdl->pintfpriv;
+
+        request = 0x05;
+        requesttype = 0x00; /* write_out */
+        index = 0;
+        wvalue = (u16)(addr&0x0000ffff);
+        len = 1;
+        data = val;
+        data = cpu_to_le32(data&0x000000ff);
+        r8712_usbctrl_vendorreq(pintfpriv, request, wvalue, index, &data, len,
+                          requesttype);
+}
+
+static void usb_write16(struct intf_hdl *pintfhdl, u32 addr, u16 val)
+{
+        u8 request;
+        u8 requesttype;
+        u16 wvalue;
+        u16 index;
+        u16 len;
+        u32 data;
+        struct intf_priv *pintfpriv = pintfhdl->pintfpriv;
+
+        request = 0x05;
+        requesttype = 0x00; /* write_out */
+        index = 0;
+        wvalue = (u16)(addr&0x0000ffff);
+        len = 2;
+        data = val;
+        data = cpu_to_le32(data&0x0000ffff);
+        r8712_usbctrl_vendorreq(pintfpriv, request, wvalue, index, &data, len,
+                          requesttype);
+}
+
+static void usb_write32(struct intf_hdl *pintfhdl, u32 addr, u32 val)
+{
+        u8 request;
+        u8 requesttype;
+        u16 wvalue;
+        u16 index;
+        u16 len;
+        u32 data;
+        struct intf_priv *pintfpriv = pintfhdl->pintfpriv;
+
+        request = 0x05;
+        requesttype = 0x00; /* write_out */
+        index = 0;
+        wvalue = (u16)(addr&0x0000ffff);
+        len = 4;
+        data = cpu_to_le32(val);
+        r8712_usbctrl_vendorreq(pintfpriv, request, wvalue, index, &data, len,
+                          requesttype);
+}
+
+void r8712_usb_set_intf_option(u32 *poption)
+{
+        *poption = ((*poption) | _INTF_ASYNC_);
+}
+
+static void usb_intf_hdl_init(u8 *priv)
+{
+}
+
+static void usb_intf_hdl_unload(u8 *priv)
+{
+}
+
+static void usb_intf_hdl_open(u8 *priv)
+{
+}
+
+static void usb_intf_hdl_close(u8 *priv)
+{
+}
+
+void r8712_usb_set_intf_funs(struct intf_hdl *pintf_hdl)
+{
+        pintf_hdl->intf_hdl_init = &usb_intf_hdl_init;
+        pintf_hdl->intf_hdl_unload = &usb_intf_hdl_unload;
+        pintf_hdl->intf_hdl_open = &usb_intf_hdl_open;
+        pintf_hdl->intf_hdl_close = &usb_intf_hdl_close;
+}
+
+void r8712_usb_set_intf_ops(struct _io_ops      *pops)
+{
+        memset((u8 *)pops, 0, sizeof(struct _io_ops));
+        pops->_read8 = &usb_read8;
+        pops->_read16 = &usb_read16;
+        pops->_read32 = &usb_read32;
+        pops->_read_port = &r8712_usb_read_port;
+        pops->_write8 = &usb_write8;
+        pops->_write16 = &usb_write16;
+        pops->_write32 = &usb_write32;
+        pops->_write_mem = &r8712_usb_write_mem;
+        pops->_write_port = &r8712_usb_write_port;
+}