MERGE-via-pending-tracking-hist-MERGE-via-stable-tracking-MERGE-via-mokopatches-tracking-fix-stray-endmenu-patch-1232632040-1232632141

pending-tracking-hist top was MERGE-via-stable-tracking-MERGE-via-mokopatches-tracking-fix-stray-endmenu-patch-1232632040-1232632141 / fdf777a63bcb59e0dfd78bfe2c6242e01f6d4eb9 ... parent commitmessage:
From: merge <null@invalid>
MERGE-via-stable-tracking-hist-MERGE-via-mokopatches-tracking-fix-stray-endmenu-patch-1232632040

stable-tracking-hist top was MERGE-via-mokopatches-tracking-fix-stray-endmenu-patch-1232632040 / 90463bfd2d5a3c8b52f6e6d71024a00e052b0ced ... parent commitmessage:
From: merge <null@invalid>
MERGE-via-mokopatches-tracking-hist-fix-stray-endmenu-patch

mokopatches-tracking-hist top was fix-stray-endmenu-patch / 3630e0be570de8057e7f8d2fe501ed353cdf34e6 ... parent commitmessage:
From: Andy Green <andy@openmoko.com>
fix-stray-endmenu.patch

Signed-off-by: Andy Green <andy@openmoko.com>

1 files changed, 254 insertions, 0 deletions

diff --git a/drivers/staging/rt2870/common/eeprom.c b/drivers/staging/rt2870/common/eeprom.c
new file mode 100644
index 00000000000..33f16ed9c49
--- /dev/null
+++ b/drivers/staging/rt2870/common/eeprom.c
@@ -0,0 +1,254 @@
+/*
+ *************************************************************************
+ * Ralink Tech Inc.
+ * 5F., No.36, Taiyuan St., Jhubei City,
+ * Hsinchu County 302,
+ * Taiwan, R.O.C.
+ *
+ * (c) Copyright 2002-2007, Ralink Technology, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify  *
+ * it under the terms of the GNU General Public License as published by  *
+ * the Free Software Foundation; either version 2 of the License, or     *
+ * (at your option) any later version.                                   *
+ *                                                                       *
+ * 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.,                                       *
+ * 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ *                                                                       *
+ *************************************************************************
+
+	Module Name:
+	eeprom.c
+
+	Abstract:
+
+	Revision History:
+	Who			When			What
+	--------	----------		----------------------------------------------
+	Name		Date			Modification logs
+*/
+#include "../rt_config.h"
+
+#if 0
+#define EEPROM_SIZE								0x200
+#define NVRAM_OFFSET			0x30000
+#define RF_OFFSET				0x40000
+
+static UCHAR init_flag = 0;
+static PUCHAR nv_ee_start = 0;
+
+static UCHAR EeBuffer[EEPROM_SIZE];
+#endif
+// IRQL = PASSIVE_LEVEL
+VOID RaiseClock(
+    IN	PRTMP_ADAPTER	pAd,
+    IN  UINT32 *x)
+{
+    *x = *x | EESK;
+    RTMP_IO_WRITE32(pAd, E2PROM_CSR, *x);
+    RTMPusecDelay(1);				// Max frequency = 1MHz in Spec. definition
+}
+
+// IRQL = PASSIVE_LEVEL
+VOID LowerClock(
+    IN	PRTMP_ADAPTER	pAd,
+    IN  UINT32 *x)
+{
+    *x = *x & ~EESK;
+    RTMP_IO_WRITE32(pAd, E2PROM_CSR, *x);
+    RTMPusecDelay(1);
+}
+
+// IRQL = PASSIVE_LEVEL
+USHORT ShiftInBits(
+    IN	PRTMP_ADAPTER	pAd)
+{
+    UINT32		x,i;
+	USHORT      data=0;
+
+    RTMP_IO_READ32(pAd, E2PROM_CSR, &x);
+
+    x &= ~( EEDO | EEDI);
+
+    for(i=0; i<16; i++)
+    {
+        data = data << 1;
+        RaiseClock(pAd, &x);
+
+        RTMP_IO_READ32(pAd, E2PROM_CSR, &x);
+
+        x &= ~(EEDI);
+        if(x & EEDO)
+            data |= 1;
+
+        LowerClock(pAd, &x);
+    }
+
+    return data;
+}
+
+// IRQL = PASSIVE_LEVEL
+VOID ShiftOutBits(
+    IN	PRTMP_ADAPTER	pAd,
+    IN  USHORT data,
+    IN  USHORT count)
+{
+    UINT32       x,mask;
+
+    mask = 0x01 << (count - 1);
+    RTMP_IO_READ32(pAd, E2PROM_CSR, &x);
+
+    x &= ~(EEDO | EEDI);
+
+    do
+    {
+        x &= ~EEDI;
+        if(data & mask)		x |= EEDI;
+
+        RTMP_IO_WRITE32(pAd, E2PROM_CSR, x);
+
+        RaiseClock(pAd, &x);
+        LowerClock(pAd, &x);
+
+        mask = mask >> 1;
+    } while(mask);
+
+    x &= ~EEDI;
+    RTMP_IO_WRITE32(pAd, E2PROM_CSR, x);
+}
+
+// IRQL = PASSIVE_LEVEL
+VOID EEpromCleanup(
+    IN	PRTMP_ADAPTER	pAd)
+{
+    UINT32 x;
+
+    RTMP_IO_READ32(pAd, E2PROM_CSR, &x);
+
+    x &= ~(EECS | EEDI);
+    RTMP_IO_WRITE32(pAd, E2PROM_CSR, x);
+
+    RaiseClock(pAd, &x);
+    LowerClock(pAd, &x);
+}
+
+VOID EWEN(
+	IN	PRTMP_ADAPTER	pAd)
+{
+    UINT32	x;
+
+    // reset bits and set EECS
+    RTMP_IO_READ32(pAd, E2PROM_CSR, &x);
+    x &= ~(EEDI | EEDO | EESK);
+    x |= EECS;
+    RTMP_IO_WRITE32(pAd, E2PROM_CSR, x);
+
+	// kick a pulse
+	RaiseClock(pAd, &x);
+	LowerClock(pAd, &x);
+
+    // output the read_opcode and six pulse in that order
+    ShiftOutBits(pAd, EEPROM_EWEN_OPCODE, 5);
+    ShiftOutBits(pAd, 0, 6);
+
+    EEpromCleanup(pAd);
+}
+
+VOID EWDS(
+	IN	PRTMP_ADAPTER	pAd)
+{
+    UINT32	x;
+
+    // reset bits and set EECS
+    RTMP_IO_READ32(pAd, E2PROM_CSR, &x);
+    x &= ~(EEDI | EEDO | EESK);
+    x |= EECS;
+    RTMP_IO_WRITE32(pAd, E2PROM_CSR, x);
+
+	// kick a pulse
+	RaiseClock(pAd, &x);
+	LowerClock(pAd, &x);
+
+    // output the read_opcode and six pulse in that order
+    ShiftOutBits(pAd, EEPROM_EWDS_OPCODE, 5);
+    ShiftOutBits(pAd, 0, 6);
+
+    EEpromCleanup(pAd);
+}
+
+// IRQL = PASSIVE_LEVEL
+USHORT RTMP_EEPROM_READ16(
+    IN	PRTMP_ADAPTER	pAd,
+    IN  USHORT Offset)
+{
+    UINT32		x;
+    USHORT		data;
+
+    Offset /= 2;
+    // reset bits and set EECS
+    RTMP_IO_READ32(pAd, E2PROM_CSR, &x);
+    x &= ~(EEDI | EEDO | EESK);
+    x |= EECS;
+    RTMP_IO_WRITE32(pAd, E2PROM_CSR, x);
+
+	// kick a pulse
+	RaiseClock(pAd, &x);
+	LowerClock(pAd, &x);
+
+    // output the read_opcode and register number in that order
+    ShiftOutBits(pAd, EEPROM_READ_OPCODE, 3);
+    ShiftOutBits(pAd, Offset, pAd->EEPROMAddressNum);
+
+    // Now read the data (16 bits) in from the selected EEPROM word
+    data = ShiftInBits(pAd);
+
+    EEpromCleanup(pAd);
+
+    return data;
+}	//ReadEEprom
+
+VOID RTMP_EEPROM_WRITE16(
+    IN	PRTMP_ADAPTER	pAd,
+    IN  USHORT Offset,
+    IN  USHORT Data)
+{
+    UINT32 x;
+
+	Offset /= 2;
+
+	EWEN(pAd);
+
+    // reset bits and set EECS
+    RTMP_IO_READ32(pAd, E2PROM_CSR, &x);
+    x &= ~(EEDI | EEDO | EESK);
+    x |= EECS;
+    RTMP_IO_WRITE32(pAd, E2PROM_CSR, x);
+
+	// kick a pulse
+	RaiseClock(pAd, &x);
+	LowerClock(pAd, &x);
+
+    // output the read_opcode ,register number and data in that order
+    ShiftOutBits(pAd, EEPROM_WRITE_OPCODE, 3);
+    ShiftOutBits(pAd, Offset, pAd->EEPROMAddressNum);
+	ShiftOutBits(pAd, Data, 16);		// 16-bit access
+
+    // read DO status
+    RTMP_IO_READ32(pAd, E2PROM_CSR, &x);
+
+	EEpromCleanup(pAd);
+
+	RTMPusecDelay(10000);	//delay for twp(MAX)=10ms
+
+	EWDS(pAd);
+
+    EEpromCleanup(pAd);
+}
+