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
|
/*
* Copyright 2017 NXP
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* Neither the name of NXP nor the names of its contributors may be used
* to endorse or promote products derived from this software without specific
* prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <sci/scfw.h>
#include <sci/ipc.h>
#include <sci/rpc.h>
#include <stdlib.h>
#include "mx8_mu.h"
void sc_call_rpc(sc_ipc_t ipc, sc_rpc_msg_t *msg, bool no_resp)
{
sc_ipc_write(ipc, msg);
if (!no_resp)
sc_ipc_read(ipc, msg);
}
sc_err_t sc_ipc_open(sc_ipc_t *ipc, sc_ipc_id_t id)
{
uint32_t base = id;
uint32_t i;
/* Get MU base associated with IPC channel */
if ((ipc == NULL) || (base == 0))
return SC_ERR_IPC;
/* Init MU */
MU_Init(base);
/* Enable all RX interrupts */
for (i = 0; i < MU_RR_COUNT; i++) {
MU_EnableRxFullInt(base, i);
}
/* Return MU address as handle */
*ipc = (sc_ipc_t) id;
return SC_ERR_NONE;
}
void sc_ipc_close(sc_ipc_t ipc)
{
uint32_t base = ipc;
if (base != 0)
MU_Init(base);
}
void sc_ipc_read(sc_ipc_t ipc, void *data)
{
uint32_t base = ipc;
sc_rpc_msg_t *msg = (sc_rpc_msg_t*) data;
uint8_t count = 0;
/* Check parms */
if ((base == 0) || (msg == NULL))
return;
/* Read first word */
MU_ReceiveMsg(base, 0, (uint32_t*) msg);
count++;
/* Check size */
if (msg->size > SC_RPC_MAX_MSG) {
*((uint32_t*) msg) = 0;
return;
}
/* Read remaining words */
while (count < msg->size) {
MU_ReceiveMsg(base, count % MU_RR_COUNT,
&(msg->DATA.d32[count - 1]));
count++;
}
}
void sc_ipc_write(sc_ipc_t ipc, void *data)
{
sc_rpc_msg_t *msg = (sc_rpc_msg_t*) data;
uint32_t base = ipc;
uint8_t count = 0;
/* Check parms */
if ((base == 0) || (msg == NULL))
return;
/* Check size */
if (msg->size > SC_RPC_MAX_MSG)
return;
/* Write first word */
MU_SendMessage(base, 0, *((uint32_t*) msg));
count++;
/* Write remaining words */
while (count < msg->size) {
MU_SendMessage(base, count % MU_TR_COUNT,
msg->DATA.d32[count - 1]);
count++;
}
}
|
