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Diffstat (limited to 'cleopatre/devkit/mt7601udrv/common/ee_prom.c')
-rw-r--r--cleopatre/devkit/mt7601udrv/common/ee_prom.c265
1 files changed, 265 insertions, 0 deletions
diff --git a/cleopatre/devkit/mt7601udrv/common/ee_prom.c b/cleopatre/devkit/mt7601udrv/common/ee_prom.c
new file mode 100644
index 0000000000..a40a03a1d2
--- /dev/null
+++ b/cleopatre/devkit/mt7601udrv/common/ee_prom.c
@@ -0,0 +1,265 @@
+/*
+ ***************************************************************************
+ * Ralink Tech Inc.
+ * 4F, No. 2 Technology 5th Rd.
+ * Science-based Industrial Park
+ * Hsin-chu, Taiwan, R.O.C.
+ *
+ * (c) Copyright 2002-2004, Ralink Technology, Inc.
+ *
+ * All rights reserved. Ralink's source code is an unpublished work and the
+ * use of a copyright notice does not imply otherwise. This source code
+ * contains confidential trade secret material of Ralink Tech. Any attemp
+ * or participation in deciphering, decoding, reverse engineering or in any
+ * way altering the source code is stricitly prohibited, unless the prior
+ * written consent of Ralink Technology, Inc. is obtained.
+ ***************************************************************************
+
+ Module Name:
+ ee_prom.c
+
+ Abstract:
+ Miniport generic portion header file
+
+ Revision History:
+ Who When What
+ -------- ---------- ----------------------------------------------
+*/
+
+
+#include "rt_config.h"
+
+
+
+/* IRQL = PASSIVE_LEVEL*/
+static inline 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*/
+static inline VOID LowerClock(
+ IN PRTMP_ADAPTER pAd,
+ IN UINT32 *x)
+{
+ *x = *x & ~EESK;
+ RTMP_IO_WRITE32(pAd, E2PROM_CSR, *x);
+ RTMPusecDelay(1);
+}
+
+/* IRQL = PASSIVE_LEVEL*/
+static inline 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);
+ LowerClock(pAd, &x); /*prevent read failed*/
+
+ x &= ~(EEDI);
+ if(x & EEDO)
+ data |= 1;
+ }
+
+ return data;
+}
+
+
+/* IRQL = PASSIVE_LEVEL*/
+static inline 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*/
+static inline 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);
+}
+
+
+static inline 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);
+}
+
+
+static inline 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*/
+int rtmp_ee_prom_read16(
+ IN RTMP_ADAPTER *pAd,
+ IN USHORT Offset,
+ OUT USHORT *pValue)
+{
+ 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);
+
+ /* patch can not access e-Fuse issue*/
+ if (IS_RT2860(pAd))
+ {
+ /* 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);
+
+
+ *pValue = data;
+
+ return NDIS_STATUS_SUCCESS;
+}
+
+
+int rtmp_ee_prom_write16(
+ IN RTMP_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);
+
+ /* patch can not access e-Fuse issue*/
+ if (IS_RT2860(pAd))
+ {
+ /* 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);
+
+
+ return NDIS_STATUS_SUCCESS;
+
+}
+
+