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Diffstat (limited to 'drivers/staging/rt2860/common/ee_prom.c')
-rw-r--r--drivers/staging/rt2860/common/ee_prom.c197
1 files changed, 0 insertions, 197 deletions
diff --git a/drivers/staging/rt2860/common/ee_prom.c b/drivers/staging/rt2860/common/ee_prom.c
deleted file mode 100644
index 2083740a844..00000000000
--- a/drivers/staging/rt2860/common/ee_prom.c
+++ /dev/null
@@ -1,197 +0,0 @@
1/*
2 *************************************************************************
3 * Ralink Tech Inc.
4 * 5F., No.36, Taiyuan St., Jhubei City,
5 * Hsinchu County 302,
6 * Taiwan, R.O.C.
7 *
8 * (c) Copyright 2002-2007, Ralink Technology, Inc.
9 *
10 * This program is free software; you can redistribute it and/or modify *
11 * it under the terms of the GNU General Public License as published by *
12 * the Free Software Foundation; either version 2 of the License, or *
13 * (at your option) any later version. *
14 * *
15 * This program is distributed in the hope that it will be useful, *
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
18 * GNU General Public License for more details. *
19 * *
20 * You should have received a copy of the GNU General Public License *
21 * along with this program; if not, write to the *
22 * Free Software Foundation, Inc., *
23 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
24 * *
25 *************************************************************************
26
27 Module Name:
28 ee_prom.c
29
30 Abstract:
31 Miniport generic portion header file
32
33 Revision History:
34 Who When What
35 -------- ---------- ----------------------------------------------
36*/
37
38#include "../rt_config.h"
39
40/* IRQL = PASSIVE_LEVEL */
41static inline void RaiseClock(struct rt_rtmp_adapter *pAd, u32 * x)
42{
43 *x = *x | EESK;
44 RTMP_IO_WRITE32(pAd, E2PROM_CSR, *x);
45 RTMPusecDelay(1); /* Max frequency = 1MHz in Spec. definition */
46}
47
48/* IRQL = PASSIVE_LEVEL */
49static inline void LowerClock(struct rt_rtmp_adapter *pAd, u32 * x)
50{
51 *x = *x & ~EESK;
52 RTMP_IO_WRITE32(pAd, E2PROM_CSR, *x);
53 RTMPusecDelay(1);
54}
55
56/* IRQL = PASSIVE_LEVEL */
57static inline u16 ShiftInBits(struct rt_rtmp_adapter *pAd)
58{
59 u32 x, i;
60 u16 data = 0;
61
62 RTMP_IO_READ32(pAd, E2PROM_CSR, &x);
63
64 x &= ~(EEDO | EEDI);
65
66 for (i = 0; i < 16; i++) {
67 data = data << 1;
68 RaiseClock(pAd, &x);
69
70 RTMP_IO_READ32(pAd, E2PROM_CSR, &x);
71 LowerClock(pAd, &x); /*prevent read failed */
72
73 x &= ~(EEDI);
74 if (x & EEDO)
75 data |= 1;
76 }
77
78 return data;
79}
80
81/* IRQL = PASSIVE_LEVEL */
82static inline void ShiftOutBits(struct rt_rtmp_adapter *pAd,
83 u16 data, u16 count)
84{
85 u32 x, mask;
86
87 mask = 0x01 << (count - 1);
88 RTMP_IO_READ32(pAd, E2PROM_CSR, &x);
89
90 x &= ~(EEDO | EEDI);
91
92 do {
93 x &= ~EEDI;
94 if (data & mask)
95 x |= EEDI;
96
97 RTMP_IO_WRITE32(pAd, E2PROM_CSR, x);
98
99 RaiseClock(pAd, &x);
100 LowerClock(pAd, &x);
101
102 mask = mask >> 1;
103 } while (mask);
104
105 x &= ~EEDI;
106 RTMP_IO_WRITE32(pAd, E2PROM_CSR, x);
107}
108
109/* IRQL = PASSIVE_LEVEL */
110static inline void EEpromCleanup(struct rt_rtmp_adapter *pAd)
111{
112 u32 x;
113
114 RTMP_IO_READ32(pAd, E2PROM_CSR, &x);
115
116 x &= ~(EECS | EEDI);
117 RTMP_IO_WRITE32(pAd, E2PROM_CSR, x);
118
119 RaiseClock(pAd, &x);
120 LowerClock(pAd, &x);
121}
122
123static inline void EWEN(struct rt_rtmp_adapter *pAd)
124{
125 u32 x;
126
127 /* reset bits and set EECS */
128 RTMP_IO_READ32(pAd, E2PROM_CSR, &x);
129 x &= ~(EEDI | EEDO | EESK);
130 x |= EECS;
131 RTMP_IO_WRITE32(pAd, E2PROM_CSR, x);
132
133 /* kick a pulse */
134 RaiseClock(pAd, &x);
135 LowerClock(pAd, &x);
136
137 /* output the read_opcode and six pulse in that order */
138 ShiftOutBits(pAd, EEPROM_EWEN_OPCODE, 5);
139 ShiftOutBits(pAd, 0, 6);
140
141 EEpromCleanup(pAd);
142}
143
144static inline void EWDS(struct rt_rtmp_adapter *pAd)
145{
146 u32 x;
147
148 /* reset bits and set EECS */
149 RTMP_IO_READ32(pAd, E2PROM_CSR, &x);
150 x &= ~(EEDI | EEDO | EESK);
151 x |= EECS;
152 RTMP_IO_WRITE32(pAd, E2PROM_CSR, x);
153
154 /* kick a pulse */
155 RaiseClock(pAd, &x);
156 LowerClock(pAd, &x);
157
158 /* output the read_opcode and six pulse in that order */
159 ShiftOutBits(pAd, EEPROM_EWDS_OPCODE, 5);
160 ShiftOutBits(pAd, 0, 6);
161
162 EEpromCleanup(pAd);
163}
164
165/* IRQL = PASSIVE_LEVEL */
166int rtmp_ee_prom_read16(struct rt_rtmp_adapter *pAd,
167 u16 Offset, u16 * pValue)
168{
169 u32 x;
170 u16 data;
171
172 Offset /= 2;
173 /* reset bits and set EECS */
174 RTMP_IO_READ32(pAd, E2PROM_CSR, &x);
175 x &= ~(EEDI | EEDO | EESK);
176 x |= EECS;
177 RTMP_IO_WRITE32(pAd, E2PROM_CSR, x);
178
179 /* patch can not access e-Fuse issue */
180 if (!(IS_RT3090(pAd) || IS_RT3572(pAd) || IS_RT3390(pAd))) {
181 /* kick a pulse */
182 RaiseClock(pAd, &x);
183 LowerClock(pAd, &x);
184 }
185 /* output the read_opcode and register number in that order */
186 ShiftOutBits(pAd, EEPROM_READ_OPCODE, 3);
187 ShiftOutBits(pAd, Offset, pAd->EEPROMAddressNum);
188
189 /* Now read the data (16 bits) in from the selected EEPROM word */
190 data = ShiftInBits(pAd);
191
192 EEpromCleanup(pAd);
193
194 *pValue = data;
195
196 return NDIS_STATUS_SUCCESS;
197}
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