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, 233 insertions, 0 deletions

diff --git a/drivers/staging/rtl8712/rtl871x_io.h b/drivers/staging/rtl8712/rtl871x_io.h
new file mode 100644
index 0000000..b70cb2b
--- /dev/null
+++ b/drivers/staging/rtl8712/rtl871x_io.h
@@ -0,0 +1,233 @@
+#ifndef _IO_H_
+#define _IO_H_
+
+#include "osdep_service.h"
+#include "osdep_intf.h"
+
+#define NUM_IOREQ		8
+
+#define MAX_PROT_SZ	(64-16)
+
+#define _IOREADY			0
+#define _IO_WAIT_COMPLETE   1
+#define _IO_WAIT_RSP        2
+
+/* IO COMMAND TYPE */
+#define _IOSZ_MASK_		(0x7F)
+#define _IO_WRITE_		BIT(7)
+#define _IO_FIXED_		BIT(8)
+#define _IO_BURST_		BIT(9)
+#define _IO_BYTE_		BIT(10)
+#define _IO_HW_			BIT(11)
+#define _IO_WORD_		BIT(12)
+#define _IO_SYNC_		BIT(13)
+#define _IO_CMDMASK_	(0x1F80)
+
+/*
+	For prompt mode accessing, caller shall free io_req
+	Otherwise, io_handler will free io_req
+*/
+/* IO STATUS TYPE */
+#define _IO_ERR_		BIT(2)
+#define _IO_SUCCESS_	BIT(1)
+#define _IO_DONE_		BIT(0)
+#define IO_RD32			(_IO_SYNC_ | _IO_WORD_)
+#define IO_RD16			(_IO_SYNC_ | _IO_HW_)
+#define IO_RD8			(_IO_SYNC_ | _IO_BYTE_)
+#define IO_RD32_ASYNC	(_IO_WORD_)
+#define IO_RD16_ASYNC	(_IO_HW_)
+#define IO_RD8_ASYNC	(_IO_BYTE_)
+#define IO_WR32			(_IO_WRITE_ | _IO_SYNC_ | _IO_WORD_)
+#define IO_WR16			(_IO_WRITE_ | _IO_SYNC_ | _IO_HW_)
+#define IO_WR8			(_IO_WRITE_ | _IO_SYNC_ | _IO_BYTE_)
+#define IO_WR32_ASYNC	(_IO_WRITE_ | _IO_WORD_)
+#define IO_WR16_ASYNC	(_IO_WRITE_ | _IO_HW_)
+#define IO_WR8_ASYNC	(_IO_WRITE_ | _IO_BYTE_)
+/*
+	Only Sync. burst accessing is provided.
+*/
+#define IO_WR_BURST(x)		(IO_WRITE_ | _IO_SYNC_ | _IO_BURST_ | \
+				((x) & _IOSZ_MASK_))
+#define IO_RD_BURST(x)		(_IO_SYNC_ | _IO_BURST_ | ((x) & _IOSZ_MASK_))
+/*below is for the intf_option bit defition...*/
+#define _INTF_ASYNC_	BIT(0)	/*support async io*/
+struct intf_priv;
+struct	intf_hdl;
+struct io_queue;
+struct	_io_ops {
+	uint (*_sdbus_read_bytes_to_membuf)(struct intf_priv *pintfpriv,
+					    u32 addr, u32 cnt, u8 *pbuf);
+	uint (*_sdbus_read_blocks_to_membuf)(struct intf_priv *pintfpriv,
+					     u32 addr, u32 cnt, u8 *pbuf);
+	u8 (*_read8)(struct intf_hdl *pintfhdl, u32 addr);
+	u16 (*_read16)(struct intf_hdl *pintfhdl, u32 addr);
+	u32 (*_read32)(struct intf_hdl *pintfhdl, u32 addr);
+	uint (*_sdbus_write_blocks_from_membuf)(struct intf_priv *pintfpriv,
+						u32 addr, u32 cnt, u8 *pbuf,
+						u8 async);
+	uint (*_sdbus_write_bytes_from_membuf)(struct intf_priv *pintfpriv,
+					       u32 addr, u32 cnt, u8 *pbuf);
+	u8 (*_cmd52r)(struct intf_priv *pintfpriv, u32 addr);
+	void (*_cmd52w)(struct intf_priv *pintfpriv, u32 addr, u8 val8);
+	u8 (*_cmdfunc152r)(struct intf_priv *pintfpriv, u32 addr);
+	void (*_cmdfunc152w)(struct intf_priv *pintfpriv, u32 addr, u8 val8);
+	void (*_write8)(struct intf_hdl *pintfhdl, u32 addr, u8 val);
+	void (*_write16)(struct intf_hdl *pintfhdl, u32 addr, u16 val);
+	void (*_write32)(struct intf_hdl *pintfhdl, u32 addr, u32 val);
+	void (*_read_mem)(struct intf_hdl *pintfhdl, u32 addr, u32 cnt,
+			  u8 *pmem);
+	void (*_write_mem)(struct intf_hdl *pintfhdl, u32 addr, u32 cnt,
+			   u8 *pmem);
+	void (*_sync_irp_protocol_rw)(struct io_queue *pio_q);
+	u32 (*_read_port)(struct intf_hdl *pintfhdl, u32 addr, u32 cnt,
+			  u8 *pmem);
+	u32 (*_write_port)(struct intf_hdl *pintfhdl, u32 addr, u32 cnt,
+			   u8 *pmem);
+};
+
+struct io_req {
+	struct list_head list;
+	u32	addr;
+	/*volatile*/ u32	val;
+	u32	command;
+	u32	status;
+	u8	*pbuf;
+	struct semaphore sema;
+	void (*_async_io_callback)(struct _adapter *padater,
+				   struct io_req *pio_req, u8 *cnxt);
+	u8 *cnxt;
+};
+
+struct	intf_hdl {
+	u32	intf_option;
+	u8	*adapter;
+	u8	*intf_dev;
+	struct intf_priv	*pintfpriv;
+	void (*intf_hdl_init)(u8 *priv);
+	void (*intf_hdl_unload)(u8 *priv);
+	void (*intf_hdl_open)(u8 *priv);
+	void (*intf_hdl_close)(u8 *priv);
+	struct	_io_ops	io_ops;
+};
+
+struct reg_protocol_rd {
+
+#ifdef __LITTLE_ENDIAN
+	/* DW1 */
+	u32		NumOfTrans:4;
+	u32		Reserved1:4;
+	u32		Reserved2:24;
+	/* DW2 */
+	u32		ByteCount:7;
+	u32		WriteEnable:1;		/*0:read, 1:write*/
+	u32		FixOrContinuous:1;	/*0:continuous, 1: Fix*/
+	u32		BurstMode:1;
+	u32		Byte1Access:1;
+	u32		Byte2Access:1;
+	u32		Byte4Access:1;
+	u32		Reserved3:3;
+	u32		Reserved4:16;
+	/*DW3*/
+	u32		BusAddress;
+	/*DW4*/
+#else
+/*DW1*/
+	u32 Reserved1:4;
+	u32 NumOfTrans:4;
+	u32 Reserved2:24;
+	/*DW2*/
+	u32 WriteEnable:1;
+	u32 ByteCount:7;
+	u32 Reserved3:3;
+	u32 Byte4Access:1;
+	u32 Byte2Access:1;
+	u32 Byte1Access:1;
+	u32 BurstMode:1 ;
+	u32 FixOrContinuous:1;
+	u32 Reserved4:16;
+	/*DW3*/
+	u32 BusAddress;
+	/*DW4*/
+#endif
+};
+
+struct reg_protocol_wt {
+#ifdef __LITTLE_ENDIAN
+	/*DW1*/
+	u32 NumOfTrans:4;
+	u32 Reserved1:4;
+	u32 Reserved2:24;
+	/*DW2*/
+	u32 ByteCount:7;
+	u32 WriteEnable:1;	/*0:read, 1:write*/
+	u32 FixOrContinuous:1;	/*0:continuous, 1: Fix*/
+	u32 BurstMode:1;
+	u32 Byte1Access:1;
+	u32 Byte2Access:1;
+	u32 Byte4Access:1;
+	u32 Reserved3:3;
+	u32 Reserved4:16;
+	/*DW3*/
+	u32 BusAddress;
+	/*DW4*/
+	u32 Value;
+#else
+	/*DW1*/
+	u32 Reserved1:4;
+	u32 NumOfTrans:4;
+	u32 Reserved2:24;
+	/*DW2*/
+	u32 WriteEnable:1;
+	u32 ByteCount:7;
+	u32 Reserved3:3;
+	u32 Byte4Access:1;
+	u32 Byte2Access:1;
+	u32 Byte1Access:1;
+	u32 BurstMode:1;
+	u32 FixOrContinuous:1;
+	u32 Reserved4:16;
+	/*DW3*/
+	u32 BusAddress;
+	/*DW4*/
+	u32 Value;
+#endif
+};
+
+/*
+Below is the data structure used by _io_handler
+*/
+
+struct io_queue {
+	spinlock_t lock;
+	struct list_head free_ioreqs;
+	/*The io_req list that will be served in the single protocol r/w.*/
+	struct list_head pending;
+	struct list_head processing;
+	u8 *free_ioreqs_buf; /* 4-byte aligned */
+	u8 *pallocated_free_ioreqs_buf;
+	struct	intf_hdl intf;
+};
+
+static inline u32 _RND4(u32 sz)
+{
+	u32	val;
+	val = ((sz >> 2) + ((sz & 3) ? 1 : 0)) << 2;
+	return val;
+}
+
+u8 r8712_read8(struct _adapter *adapter, u32 addr);
+u16 r8712_read16(struct _adapter *adapter, u32 addr);
+u32 r8712_read32(struct _adapter *adapter, u32 addr);
+void r8712_read_mem(struct _adapter *adapter, u32 addr, u32 cnt, u8 *pmem);
+void r8712_read_port(struct _adapter *adapter, u32 addr, u32 cnt, u8 *pmem);
+void r8712_write8(struct _adapter *adapter, u32 addr, u8 val);
+void r8712_write16(struct _adapter *adapter, u32 addr, u16 val);
+void r8712_write32(struct _adapter *adapter, u32 addr, u32 val);
+void r8712_write_mem(struct _adapter *adapter, u32 addr, u32 cnt, u8 *pmem);
+void r8712_write_port(struct _adapter *adapter, u32 addr, u32 cnt, u8 *pmem);
+/*ioreq */
+uint r8712_alloc_io_queue(struct _adapter *adapter);
+void r8712_free_io_queue(struct _adapter *adapter);
+
+#endif	/*_RTL8711_IO_H_*/
+