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
|
// Commands for sending messages on an SDIO bus
//
// Copyright (C) 2022 H. Gregor Molter <gregor.molter@secretlab.de>
//
// This file may be distributed under the terms of the GNU GPLv3 license.
#include <string.h> // memcpy
#include "board/gpio.h" // gpio_in_setup
#include "board/sdio.h" // sdio_setup
#include "basecmd.h" // oid_alloc
#include "command.h" // DECL_COMMAND
#include "sched.h" // DECL_SHUTDOWN
struct sdiodev_s {
struct sdio_config sdio_config;
uint32_t blocksize;
uint32_t speed;
uint8_t data_buffer[4096];
};
#define TIMEOUT_MSEC 500
void
command_config_sdio(uint32_t *args)
{
struct sdiodev_s *sdio = oid_alloc(args[0], command_config_sdio
, sizeof(*sdio));
sdio->blocksize = args[1];
sdio->speed = 400000; // Initial speed set to ~400khz
}
DECL_COMMAND(command_config_sdio, "config_sdio oid=%c blocksize=%u");
struct sdiodev_s *
sdiodev_oid_lookup(uint8_t oid)
{
return oid_lookup(oid, command_config_sdio);
}
void
command_sdio_set_bus(uint32_t *args)
{
struct sdiodev_s *sdio = sdiodev_oid_lookup(args[0]);
sdio->sdio_config = sdio_setup(args[1]);
}
DECL_COMMAND(command_sdio_set_bus, "sdio_set_bus oid=%c sdio_bus=%u");
void
command_sdio_set_speed(uint32_t *args)
{
struct sdiodev_s *sdio = sdiodev_oid_lookup(args[0]);
sdio->speed = args[1];
sdio_set_speed(sdio->sdio_config, sdio->speed);
}
DECL_COMMAND(command_sdio_set_speed, "sdio_set_speed oid=%c speed=%u");
void
command_sdio_send_command(uint32_t *args)
{
uint8_t oid = args[0];
uint8_t cmd = args[1];
uint32_t argument = args[2];
uint8_t wait = args[3];
struct sdiodev_s *sdio = sdiodev_oid_lookup(oid);
uint8_t response[16];
uint8_t response_len = 0;
uint8_t err = sdio_send_command(sdio->sdio_config, cmd, argument, wait
, response, &response_len);
sendf("sdio_send_command_response oid=%c error=%c response=%*s"
, oid, err, response_len, response);
}
DECL_COMMAND(command_sdio_send_command
, "sdio_send_command oid=%c cmd=%c argument=%u wait=%c");
void
command_sdio_read_data(uint32_t *args)
{
uint8_t oid = args[0];
uint8_t cmd = args[1];
uint32_t argument = args[2];
uint32_t data_len = 0;
struct sdiodev_s *sdio = sdiodev_oid_lookup(oid);
uint32_t timeout = TIMEOUT_MSEC*sdio->speed/1000;
uint8_t err = sdio_prepare_data_transfer(sdio->sdio_config, 1, 1
, sdio->blocksize, timeout);
if (err == 0) {
err = sdio_send_command(sdio->sdio_config, cmd, argument
, 1, NULL, NULL);
if (err == 0) {
data_len = sdio->blocksize;
if (data_len <= sizeof(sdio->data_buffer)) {
err = sdio_read_data(sdio->sdio_config, sdio->data_buffer
, 1, sdio->blocksize);
} else {
data_len = 0;
}
}
}
sendf("sdio_read_data_response oid=%c error=%c read=%u"
, oid, err, data_len);
}
DECL_COMMAND(command_sdio_read_data
, "sdio_read_data oid=%c cmd=%c argument=%u");
void
command_sdio_write_data(uint32_t *args)
{
uint8_t oid = args[0];
uint8_t cmd = args[1];
uint32_t argument = args[2];
uint32_t data_len = 0;
struct sdiodev_s *sdio = sdiodev_oid_lookup(oid);
uint32_t timeout = TIMEOUT_MSEC*sdio->speed/1000;
uint8_t err = sdio_prepare_data_transfer(sdio->sdio_config, 0, 1
, sdio->blocksize, timeout);
if (err == 0) {
err = sdio_send_command(sdio->sdio_config, cmd, argument
, 1, NULL, NULL);
if (err == 0) {
data_len = sdio->blocksize;
if (data_len <= sizeof(sdio->data_buffer)) {
err = sdio_write_data(sdio->sdio_config, sdio->data_buffer
, 1, sdio->blocksize);
} else {
data_len = 0;
}
}
}
sendf("sdio_write_data_response oid=%c error=%c write=%u"
, oid, err, data_len);
}
DECL_COMMAND(command_sdio_write_data
, "sdio_write_data oid=%c cmd=%c argument=%u");
void
command_sdio_read_data_buffer(uint32_t *args)
{
uint8_t oid = args[0];
uint32_t offset = args[1];
uint8_t len = args[2];
struct sdiodev_s *sdio = sdiodev_oid_lookup(oid);
uint8_t *buf = &(sdio->data_buffer[offset]);
if (offset + len > sizeof(sdio->data_buffer)) {
len = 0;
}
sendf("sdio_read_data_buffer_response oid=%c data=%*s", oid, len, buf);
}
DECL_COMMAND(command_sdio_read_data_buffer
, "sdio_read_data_buffer oid=%c offset=%u len=%c");
void
command_sdio_write_data_buffer(uint32_t *args)
{
uint8_t oid = args[0];
uint32_t offset = args[1];
uint8_t write_data_len = args[2];
uint8_t *write_data = command_decode_ptr(args[3]);
struct sdiodev_s *sdio = sdiodev_oid_lookup(oid);
uint8_t *buf = &(sdio->data_buffer[offset]);
if (offset + write_data_len <= sizeof(sdio->data_buffer)) {
memcpy(buf, write_data, write_data_len);
}
}
DECL_COMMAND(command_sdio_write_data_buffer
, "sdio_write_data_buffer oid=%c offset=%u data=%*s");
|
