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, 151 insertions, 0 deletions

diff --git a/drivers/staging/rtl8712/rtl8712_io.c b/drivers/staging/rtl8712/rtl8712_io.c
new file mode 100644
index 00000000000..c7346008def
--- /dev/null
+++ b/drivers/staging/rtl8712/rtl8712_io.c
@@ -0,0 +1,151 @@
+/******************************************************************************
+ * rtl8712_io.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 _RTL8712_IO_C_
+
+#include "osdep_service.h"
+#include "drv_types.h"
+#include "rtl871x_io.h"
+#include "osdep_intf.h"
+#include "usb_ops.h"
+
+u8 r8712_read8(struct _adapter *adapter, u32 addr)
+{
+	struct io_queue *pio_queue = (struct io_queue *)adapter->pio_queue;
+	struct intf_hdl *pintfhdl = &(pio_queue->intf);
+	u8 (*_read8)(struct intf_hdl *pintfhdl, u32 addr);
+	u8 r_val;
+
+	_read8 = pintfhdl->io_ops._read8;
+	r_val = _read8(pintfhdl, addr);
+	return r_val;
+}
+
+u16 r8712_read16(struct _adapter *adapter, u32 addr)
+{
+	struct io_queue *pio_queue = (struct io_queue *)adapter->pio_queue;
+	struct intf_hdl *pintfhdl = &(pio_queue->intf);
+	u16 (*_read16)(struct intf_hdl *pintfhdl, u32 addr);
+	u16 r_val;
+
+	_read16 = pintfhdl->io_ops._read16;
+	r_val = _read16(pintfhdl, addr);
+	return r_val;
+}
+
+u32 r8712_read32(struct _adapter *adapter, u32 addr)
+{
+	struct io_queue *pio_queue = (struct io_queue *)adapter->pio_queue;
+	struct intf_hdl *pintfhdl = &(pio_queue->intf);
+	u32 (*_read32)(struct intf_hdl *pintfhdl, u32 addr);
+	u32 r_val;
+
+	_read32 = pintfhdl->io_ops._read32;
+	r_val = _read32(pintfhdl, addr);
+	return r_val;
+}
+
+void r8712_write8(struct _adapter *adapter, u32 addr, u8 val)
+{
+	struct io_queue *pio_queue = (struct io_queue *)adapter->pio_queue;
+	struct intf_hdl *pintfhdl = &(pio_queue->intf);
+	void (*_write8)(struct intf_hdl *pintfhdl, u32 addr, u8 val);
+
+	_write8 = pintfhdl->io_ops._write8;
+	_write8(pintfhdl, addr, val);
+}
+
+void r8712_write16(struct _adapter *adapter, u32 addr, u16 val)
+{
+	struct io_queue *pio_queue = (struct io_queue *)adapter->pio_queue;
+	struct intf_hdl *pintfhdl = &(pio_queue->intf);
+
+	void (*_write16)(struct intf_hdl *pintfhdl, u32 addr, u16 val);
+	_write16 = pintfhdl->io_ops._write16;
+	_write16(pintfhdl, addr, val);
+}
+
+void r8712_write32(struct _adapter *adapter, u32 addr, u32 val)
+{
+	struct io_queue *pio_queue = (struct io_queue *)adapter->pio_queue;
+	struct intf_hdl *pintfhdl = (struct intf_hdl *)(&(pio_queue->intf));
+
+	void (*_write32)(struct intf_hdl *pintfhdl, u32 addr, u32 val);
+	_write32 = pintfhdl->io_ops._write32;
+	_write32(pintfhdl, addr, val);
+}
+
+void r8712_read_mem(struct _adapter *adapter, u32 addr, u32 cnt, u8 *pmem)
+{
+	struct io_queue *pio_queue = (struct io_queue *)adapter->pio_queue;
+	struct intf_hdl *pintfhdl = &(pio_queue->intf);
+
+	void (*_read_mem)(struct intf_hdl *pintfhdl, u32 addr, u32 cnt,
+			  u8 *pmem);
+	if ((adapter->bDriverStopped == true) ||
+	    (adapter->bSurpriseRemoved == true))
+		return;
+	_read_mem = pintfhdl->io_ops._read_mem;
+	_read_mem(pintfhdl, addr, cnt, pmem);
+}
+
+void r8712_write_mem(struct _adapter *adapter, u32 addr, u32 cnt, u8 *pmem)
+{
+	struct io_queue *pio_queue = (struct io_queue *)adapter->pio_queue;
+	struct intf_hdl *pintfhdl = &(pio_queue->intf);
+	void (*_write_mem)(struct intf_hdl *pintfhdl, u32 addr, u32 cnt,
+			   u8 *pmem);
+
+	_write_mem = pintfhdl->io_ops._write_mem;
+	_write_mem(pintfhdl, addr, cnt, pmem);
+}
+
+void r8712_read_port(struct _adapter *adapter, u32 addr, u32 cnt, u8 *pmem)
+{
+	struct io_queue *pio_queue = (struct io_queue *)adapter->pio_queue;
+	struct intf_hdl	*pintfhdl = &(pio_queue->intf);
+
+	u32 (*_read_port)(struct intf_hdl *pintfhdl, u32 addr, u32 cnt,
+			  u8 *pmem);
+	if ((adapter->bDriverStopped == true) ||
+	    (adapter->bSurpriseRemoved == true))
+		return;
+	_read_port = pintfhdl->io_ops._read_port;
+	_read_port(pintfhdl, addr, cnt, pmem);
+}
+
+void r8712_write_port(struct _adapter *adapter, u32 addr, u32 cnt, u8 *pmem)
+{
+	struct io_queue *pio_queue = (struct io_queue *)adapter->pio_queue;
+	struct intf_hdl *pintfhdl = &(pio_queue->intf);
+
+	u32 (*_write_port)(struct intf_hdl *pintfhdl, u32 addr, u32 cnt,
+			   u8 *pmem);
+	_write_port = pintfhdl->io_ops._write_port;
+	_write_port(pintfhdl, addr, cnt, pmem);
+}