1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
|
#include <stdio.h>
#include <sys/types.h>
#include <time.h>
#include <ctype.h>
#include <errno.h>
#include <string.h>
#include "imx_sdp.h"
#include "portable.h"
#pragma pack (1)
struct sdp_command {
uint16_t cmd;
uint32_t addr;
uint8_t format;
uint32_t cnt;
uint32_t data;
uint8_t rsvd;
};
#pragma pack ()
#define SDP_READ_REG 0x0101
#define SDP_WRITE_REG 0x0202
#define SDP_WRITE_FILE 0x0404
#define SDP_ERROR_STATUS 0x0505
#define SDP_WRITE_DCD 0x0a0a
#define SDP_JUMP_ADDRESS 0x0b0b
static int sdp_fill_read_reg(unsigned char *buf, unsigned addr, unsigned cnt)
{
struct sdp_command read_reg_command = {
.cmd = SDP_READ_REG,
.addr = BE32(addr),
.format = 0x20,
.cnt = BE32(cnt),
.data = BE32(0),
.rsvd = 0x00
};
int cmd_size = sizeof(struct sdp_command);
memcpy(buf, &read_reg_command, cmd_size);
return cmd_size;
}
static int sdp_fill_write_reg(unsigned char *buf, unsigned addr, unsigned val)
{
struct sdp_command write_reg_command = {
.cmd = SDP_WRITE_REG,
.addr = BE32(addr),
.format = 0x20,
.cnt = BE32(4),
.data = BE32(val),
.rsvd = 0x00
};
int cmd_size = sizeof(struct sdp_command);
memcpy(buf, &write_reg_command, cmd_size);
return cmd_size;
}
static int sdp_fill_status(unsigned char *buf)
{
struct sdp_command status_command = {
.cmd = SDP_ERROR_STATUS,
.addr = 0,
.format = 0,
.cnt = 0,
.data = 0,
.rsvd = 0
};
int cmd_size = sizeof(struct sdp_command);
memcpy(buf, &status_command, cmd_size);
return cmd_size;
}
static int sdp_fill_dl_dcd(unsigned char *buf, unsigned dcd_addr, int length)
{
struct sdp_command dl_command = {
.cmd = SDP_WRITE_DCD,
.addr = BE32(dcd_addr),
.format = 0,
.cnt = BE32(length),
.data = 0,
.rsvd = 0
};
int cmd_size = sizeof(struct sdp_command);
memcpy(buf, &dl_command, cmd_size);
return cmd_size;
}
static int sdp_fill_write_file(unsigned char *buf, unsigned dladdr, unsigned fsize, unsigned char type)
{
struct sdp_command dl_command = {
.cmd = SDP_WRITE_FILE,
.addr = BE32(dladdr),
.format = 0,
.cnt = BE32(fsize),
.data = 0,
.rsvd = type
};
int cmd_size = sizeof(struct sdp_command);
memcpy(buf, &dl_command, cmd_size);
return cmd_size;
}
static int sdp_fill_jump(unsigned char *buf, unsigned header_addr)
{
struct sdp_command jump_command = {
.cmd = SDP_JUMP_ADDRESS,
.addr = BE32(header_addr),
.format = 0,
.cnt = 0,
.data = 0,
.rsvd = 0x00
};
int cmd_size = sizeof(struct sdp_command);
memcpy(buf, &jump_command, cmd_size);
return cmd_size;
}
static int sdp_get_cmd_addr_cnt(unsigned char *buf,
uint16_t *cmd, uint32_t *addr, uint32_t *cnt)
{
struct sdp_command *p = (struct sdp_command *)buf;
uint16_t c = p->cmd;
uint16_t tc = CMD_INVAL;
switch (c) {
case SDP_READ_REG:
tc = CMD_READ_REG;
break;
case SDP_WRITE_REG:
tc = CMD_WRITE_REG;
break;
case SDP_WRITE_FILE:
tc = CMD_WRITE_FILE;
break;
case SDP_ERROR_STATUS:
tc = CMD_ERROR_STATUS;
break;
case SDP_WRITE_DCD:
tc = CMD_WRITE_DCD;
break;
case SDP_JUMP_ADDRESS:
tc = CMD_JUMP_ADDRESS;
break;
}
*cmd = tc;
*addr = BE32(p->addr);
*cnt = BE32(p->cnt);
return sizeof(struct sdp_command);
}
static struct protocol_ops sdp_protocol_ops = {
.fill_read_reg = sdp_fill_read_reg,
.fill_write_reg = sdp_fill_write_reg,
.fill_status = sdp_fill_status,
.fill_dl_dcd = sdp_fill_dl_dcd,
.fill_write_file = sdp_fill_write_file,
.fill_jump = sdp_fill_jump,
.get_cmd_addr_cnt = sdp_get_cmd_addr_cnt,
};
void sdp_init_ops(struct sdp_dev *dev)
{
dev->ops = &sdp_protocol_ops;
}
|
