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, 128 insertions, 0 deletions

diff --git a/drivers/staging/rtl8712/rtl8712_recv.h b/drivers/staging/rtl8712/rtl8712_recv.h
new file mode 100644
index 000000000000..4ba52b9c1697
--- /dev/null
+++ b/drivers/staging/rtl8712/rtl8712_recv.h
@@ -0,0 +1,128 @@
+#ifndef _RTL8712_RECV_H_
+#define _RTL8712_RECV_H_
+
+#include "osdep_service.h"
+#include "drv_types.h"
+
+#define NR_RECVBUFF (8)
+#define NR_PREALLOC_RECV_SKB (8)
+#define RXDESC_SIZE	24
+#define RXDESC_OFFSET RXDESC_SIZE
+#define RECV_BLK_SZ 512
+#define RECV_BLK_CNT 16
+#define RECV_BLK_TH RECV_BLK_CNT
+#define MAX_RECVBUF_SZ (30720) /* 30K */
+#define RECVBUFF_ALIGN_SZ 512
+#define RSVD_ROOM_SZ (0)
+/*These definition is used for Rx packet reordering.*/
+#define SN_LESS(a, b)		(((a-b) & 0x800) != 0)
+#define SN_EQUAL(a, b)	(a == b)
+#define REORDER_WAIT_TIME	30 /* (ms)*/
+
+struct recv_stat {
+	unsigned int rxdw0;
+	unsigned int rxdw1;
+	unsigned int rxdw2;
+	unsigned int rxdw3;
+	unsigned int rxdw4;
+	unsigned int rxdw5;
+};
+
+struct phy_cck_rx_status {
+	/* For CCK rate descriptor. This is a unsigned 8:1 variable.
+	 * LSB bit present 0.5. And MSB 7 bts present a signed value.
+	 * Range from -64~+63.5. */
+	u8	adc_pwdb_X[4];
+	u8	sq_rpt;
+	u8	cck_agc_rpt;
+};
+
+struct phy_stat {
+	unsigned int phydw0;
+	unsigned int phydw1;
+	unsigned int phydw2;
+	unsigned int phydw3;
+	unsigned int phydw4;
+	unsigned int phydw5;
+	unsigned int phydw6;
+	unsigned int phydw7;
+};
+#define PHY_STAT_GAIN_TRSW_SHT 0
+#define PHY_STAT_PWDB_ALL_SHT 4
+#define PHY_STAT_CFOSHO_SHT 5
+#define PHY_STAT_CCK_AGC_RPT_SHT 5
+#define PHY_STAT_CFOTAIL_SHT 9
+#define PHY_STAT_RXEVM_SHT 13
+#define PHY_STAT_RXSNR_SHT 15
+#define PHY_STAT_PDSNR_SHT 19
+#define PHY_STAT_CSI_CURRENT_SHT 21
+#define PHY_STAT_CSI_TARGET_SHT 23
+#define PHY_STAT_SIGEVM_SHT 25
+#define PHY_STAT_MAX_EX_PWR_SHT 26
+
+union recvstat {
+	struct recv_stat recv_stat;
+	unsigned int value[RXDESC_SIZE>>2];
+};
+
+
+struct recv_buf {
+	struct list_head list;
+	spinlock_t recvbuf_lock;
+	u32	ref_cnt;
+	struct _adapter  *adapter;
+	struct urb *purb;
+	_pkt *pskb;
+	u8 reuse;
+	u8  irp_pending;
+	u32  transfer_len;
+	uint  len;
+	u8 *phead;
+	u8 *pdata;
+	u8 *ptail;
+	u8 *pend;
+	u8 *pbuf;
+	u8 *pallocated_buf;
+};
+
+/*
+	head  ----->
+		data  ----->
+			payload
+		tail  ----->
+	end   ----->
+	len = (unsigned int )(tail - data);
+*/
+struct recv_frame_hdr{
+	struct list_head list;
+	_pkt	*pkt;
+	_pkt *pkt_newalloc;
+	struct _adapter  *adapter;
+	u8 fragcnt;
+	struct rx_pkt_attrib attrib;
+	uint  len;
+	u8 *rx_head;
+	u8 *rx_data;
+	u8 *rx_tail;
+	u8 *rx_end;
+	void *precvbuf;
+	struct sta_info *psta;
+	/*for A-MPDU Rx reordering buffer control*/
+	struct recv_reorder_ctrl *preorder_ctrl;
+};
+
+union recv_frame {
+	union {
+		struct list_head list;
+		struct recv_frame_hdr hdr;
+		addr_t mem[RECVFRAME_HDR_ALIGN>>2];
+	} u;
+};
+
+int r8712_init_recvbuf(struct _adapter *padapter, struct recv_buf *precvbuf);
+void r8712_rxcmd_event_hdl(struct _adapter *padapter, void *prxcmdbuf);
+s32 r8712_signal_scale_mapping(s32 cur_sig);
+void r8712_reordering_ctrl_timeout_handler(void *pcontext);
+
+#endif
+