staging: Add rtl8723bs sdio wifi driver

The rtl8723bs is found on quite a few systems used by Linux users,
such as on Atom systems (Intel Computestick and various other
Atom based devices) and on many (budget) ARM boards such as
the CHIP.

The plan moving forward with this is for the new clean,
written from scratch, rtl8xxxu driver to eventually gain
support for sdio devices. But there is no clear timeline
for that, so lets add this driver included in staging for now.

Cc: Bastien Nocera <hadess@hadess.net>
Cc: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Jes Sorensen <jes.sorensen@gmail.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 86 insertions, 0 deletions

diff --git a/drivers/staging/rtl8723bs/hal/rtl8723b_rxdesc.c b/drivers/staging/rtl8723bs/hal/rtl8723b_rxdesc.c
new file mode 100644
index 000000000000..92e5a0e7aa59
--- /dev/null
+++ b/drivers/staging/rtl8723bs/hal/rtl8723b_rxdesc.c
@@ -0,0 +1,86 @@
+/******************************************************************************
+ *
+ * Copyright(c) 2007 - 2011 Realtek Corporation. All rights reserved.
+ *
+ * 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.
+ *
+ ******************************************************************************/
+#define _RTL8723B_REDESC_C_
+
+#include <rtl8723b_hal.h>
+
+static void process_rssi(struct adapter *padapter, union recv_frame *prframe)
+{
+	struct rx_pkt_attrib *pattrib = &prframe->u.hdr.attrib;
+	struct signal_stat *signal_stat = &padapter->recvpriv.signal_strength_data;
+
+	/* DBG_8192C("process_rssi => pattrib->rssil(%d) signal_strength(%d)\n ", pattrib->RecvSignalPower, pattrib->signal_strength); */
+	/* if (pRfd->Status.bPacketToSelf || pRfd->Status.bPacketBeacon) */
+	{
+		if (signal_stat->update_req) {
+			signal_stat->total_num = 0;
+			signal_stat->total_val = 0;
+			signal_stat->update_req = 0;
+		}
+
+		signal_stat->total_num++;
+		signal_stat->total_val  += pattrib->phy_info.SignalStrength;
+		signal_stat->avg_val = signal_stat->total_val / signal_stat->total_num;
+	}
+
+} /*  Process_UI_RSSI_8192C */
+
+static void process_link_qual(struct adapter *padapter, union recv_frame *prframe)
+{
+	struct rx_pkt_attrib *pattrib;
+	struct signal_stat *signal_stat;
+
+	if (prframe == NULL || padapter == NULL)
+		return;
+
+	pattrib = &prframe->u.hdr.attrib;
+	signal_stat = &padapter->recvpriv.signal_qual_data;
+
+	/* DBG_8192C("process_link_qual => pattrib->signal_qual(%d)\n ", pattrib->signal_qual); */
+
+	if (signal_stat->update_req) {
+		signal_stat->total_num = 0;
+		signal_stat->total_val = 0;
+		signal_stat->update_req = 0;
+	}
+
+	signal_stat->total_num++;
+	signal_stat->total_val  += pattrib->phy_info.SignalQuality;
+	signal_stat->avg_val = signal_stat->total_val / signal_stat->total_num;
+} /*  Process_UiLinkQuality8192S */
+
+
+void rtl8723b_process_phy_info(struct adapter *padapter, void *prframe)
+{
+	union recv_frame *precvframe = (union recv_frame *)prframe;
+	/*  */
+	/*  Check RSSI */
+	/*  */
+	process_rssi(padapter, precvframe);
+	/*  */
+	/*  Check PWDB. */
+	/*  */
+	/* process_PWDB(padapter, precvframe); */
+
+	/* UpdateRxSignalStatistics8192C(Adapter, pRfd); */
+	/*  */
+	/*  Check EVM */
+	/*  */
+	process_link_qual(padapter,  precvframe);
+	#ifdef DBG_RX_SIGNAL_DISPLAY_RAW_DATA
+	rtw_store_phy_info(padapter, prframe);
+	#endif
+
+}