From: wlanfae <wlanfae@realtek.com>
[PATCH 1/8] rtl8192e: Import new version of driver from realtek
Signed-off-by: wlanfae <wlanfae@realtek.com>
Signed-off-by: Mike McCormack <mikem@ring3k.org>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
---
diff --git a/drivers/staging/rtl8192e/rtl_eeprom.c b/drivers/staging/rtl8192e/rtl_eeprom.c
new file mode 100644
index 0000000..14a8c1d
--- /dev/null
+++ b/drivers/staging/rtl8192e/rtl_eeprom.c
@@ -0,0 +1,141 @@
+/******************************************************************************
+ * Copyright(c) 2008 - 2010 Realtek Corporation. All rights reserved.
+ *
+ * Based on the r8180 driver, which is:
+ * Copyright 2004-2005 Andrea Merello <andreamrl@tiscali.it>, et al.
+ * 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
+ *
+ * The full GNU General Public License is included in this distribution in the
+ * file called LICENSE.
+ *
+ * Contact Information:
+ * wlanfae <wlanfae@realtek.com>
+******************************************************************************/
+#include "rtl_core.h"
+#include "rtl_eeprom.h"
+
+void eprom_cs(struct net_device *dev, short bit)
+{
+ if (bit)
+ write_nic_byte(dev, EPROM_CMD,
+ (1<<EPROM_CS_SHIFT) | \
+ read_nic_byte(dev, EPROM_CMD));
+ else
+ write_nic_byte(dev, EPROM_CMD, read_nic_byte(dev, EPROM_CMD)\
+ &~(1<<EPROM_CS_SHIFT));
+
+ udelay(EPROM_DELAY);
+}
+
+
+void eprom_ck_cycle(struct net_device *dev)
+{
+ write_nic_byte(dev, EPROM_CMD,
+ (1<<EPROM_CK_SHIFT) | read_nic_byte(dev,EPROM_CMD));
+ udelay(EPROM_DELAY);
+ write_nic_byte(dev, EPROM_CMD,
+ read_nic_byte(dev, EPROM_CMD) &~ (1<<EPROM_CK_SHIFT));
+ udelay(EPROM_DELAY);
+}
+
+
+void eprom_w(struct net_device *dev,short bit)
+{
+ if (bit)
+ write_nic_byte(dev, EPROM_CMD, (1<<EPROM_W_SHIFT) | \
+ read_nic_byte(dev,EPROM_CMD));
+ else
+ write_nic_byte(dev, EPROM_CMD, read_nic_byte(dev,EPROM_CMD)\
+ &~(1<<EPROM_W_SHIFT));
+
+ udelay(EPROM_DELAY);
+}
+
+
+short eprom_r(struct net_device *dev)
+{
+ short bit;
+
+ bit=(read_nic_byte(dev, EPROM_CMD) & (1<<EPROM_R_SHIFT) );
+ udelay(EPROM_DELAY);
+
+ if (bit)
+ return 1;
+ return 0;
+}
+
+
+void eprom_send_bits_string(struct net_device *dev, short b[], int len)
+{
+ int i;
+
+ for (i=0; i<len; i++){
+ eprom_w(dev, b[i]);
+ eprom_ck_cycle(dev);
+ }
+}
+
+
+u32 eprom_read(struct net_device *dev, u32 addr)
+{
+ struct r8192_priv *priv = rtllib_priv(dev);
+ short read_cmd[]={1,1,0};
+ short addr_str[8];
+ int i;
+ int addr_len;
+ u32 ret;
+
+ ret=0;
+ write_nic_byte(dev, EPROM_CMD,
+ (EPROM_CMD_PROGRAM<<EPROM_CMD_OPERATING_MODE_SHIFT));
+ udelay(EPROM_DELAY);
+
+ if (priv->epromtype==EEPROM_93C56){
+ addr_str[7]=addr & 1;
+ addr_str[6]=addr & (1<<1);
+ addr_str[5]=addr & (1<<2);
+ addr_str[4]=addr & (1<<3);
+ addr_str[3]=addr & (1<<4);
+ addr_str[2]=addr & (1<<5);
+ addr_str[1]=addr & (1<<6);
+ addr_str[0]=addr & (1<<7);
+ addr_len=8;
+ }else{
+ addr_str[5]=addr & 1;
+ addr_str[4]=addr & (1<<1);
+ addr_str[3]=addr & (1<<2);
+ addr_str[2]=addr & (1<<3);
+ addr_str[1]=addr & (1<<4);
+ addr_str[0]=addr & (1<<5);
+ addr_len=6;
+ }
+ eprom_cs(dev, 1);
+ eprom_ck_cycle(dev);
+ eprom_send_bits_string(dev, read_cmd, 3);
+ eprom_send_bits_string(dev, addr_str, addr_len);
+
+ eprom_w(dev, 0);
+
+ for (i = 0; i < 16; i++){
+ eprom_ck_cycle(dev);
+ ret |= (eprom_r(dev)<<(15-i));
+ }
+
+ eprom_cs(dev, 0);
+ eprom_ck_cycle(dev);
+
+ write_nic_byte(dev, EPROM_CMD,
+ (EPROM_CMD_NORMAL<<EPROM_CMD_OPERATING_MODE_SHIFT));
+ return ret;
+}