vdr 2.7.4
hdffcmd_generic.c
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1/**********************************************************************
2 *
3 * HDFF firmware command interface library
4 *
5 * Copyright (C) 2011 Andreas Regel
6 *
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License
9 * as published by the Free Software Foundation; either version 2
10 * of the License, or (at your option) any later version.
11
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the
19 * Free Software Foundation, Inc.,
20 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
21 *
22 *********************************************************************/
23
24#include <errno.h>
25#include <stdint.h>
26#include <string.h>
27#include <sys/ioctl.h>
28
29#include "hdffcmd.h"
30#include "hdffcmd_base.h"
31#include "hdffcmd_defs.h"
32
33int HdffCmdGetFirmwareVersion(int OsdDevice, uint32_t * Version, char * String,
34 uint32_t MaxLength)
35{
36 uint8_t cmdData[8];
37 uint8_t resultData[64];
38 BitBuffer_t cmdBuf;
39 osd_raw_cmd_t osd_cmd;
40 int err;
41
42 if (Version == NULL)
43 return -EINVAL;
44
45 *Version = 0;
46 if (String)
47 String[0] = 0;
48
49 BitBuffer_Init(&cmdBuf, cmdData, sizeof(cmdData));
50 memset(&osd_cmd, 0, sizeof(osd_raw_cmd_t));
51 osd_cmd.cmd_data = cmdData;
52 osd_cmd.result_data = resultData;
53 osd_cmd.result_len = sizeof(resultData);
56 osd_cmd.cmd_len = HdffCmdSetLength(&cmdBuf);
57 err = ioctl(OsdDevice, OSD_RAW_CMD, &osd_cmd);
58 if (err == 0)
59 {
60 if (osd_cmd.result_len > 0)
61 {
62 if (String)
63 {
64 uint8_t textLength = resultData[9];
65 if (textLength >= MaxLength)
66 textLength = MaxLength - 1;
67 memcpy(String, &resultData[10], textLength);
68 String[textLength] = 0;
69 }
70 *Version = (resultData[6] << 16)
71 | (resultData[7] << 8)
72 | resultData[8];
73 }
74 }
75 return err;
76}
77
78int HdffCmdGetInterfaceVersion(int OsdDevice, uint32_t * Version, char * String,
79 uint32_t MaxLength)
80{
81 uint8_t cmdData[8];
82 uint8_t resultData[64];
83 BitBuffer_t cmdBuf;
84 osd_raw_cmd_t osd_cmd;
85 int err;
86
87 if (Version == NULL)
88 return -EINVAL;
89
90 *Version = 0;
91 if (String)
92 String[0] = 0;
93
94 BitBuffer_Init(&cmdBuf, cmdData, sizeof(cmdData));
95 memset(&osd_cmd, 0, sizeof(osd_raw_cmd_t));
96 osd_cmd.cmd_data = cmdData;
97 osd_cmd.result_data = resultData;
98 osd_cmd.result_len = sizeof(resultData);
101 osd_cmd.cmd_len = HdffCmdSetLength(&cmdBuf);
102 err = ioctl(OsdDevice, OSD_RAW_CMD, &osd_cmd);
103 if (err == 0)
104 {
105 if (osd_cmd.result_len > 0)
106 {
107 if (String)
108 {
109 uint8_t textLength = resultData[9];
110 if (textLength >= MaxLength)
111 textLength = MaxLength - 1;
112 memcpy(String, &resultData[10], textLength);
113 String[textLength] = 0;
114 }
115 *Version = (resultData[6] << 16)
116 | (resultData[7] << 8)
117 | resultData[8];
118 }
119 }
120 return err;
121}
122
123int HdffCmdGetCopyrights(int OsdDevice, uint8_t Index, char * String,
124 uint32_t MaxLength)
125{
126 uint8_t cmdData[8];
127 uint8_t resultData[280];
128 BitBuffer_t cmdBuf;
129 osd_raw_cmd_t osd_cmd;
130 int err;
131
132 if (String == NULL)
133 return -EINVAL;
134
135 String[0] = 0;
136
137 BitBuffer_Init(&cmdBuf, cmdData, sizeof(cmdData));
138 memset(&osd_cmd, 0, sizeof(osd_raw_cmd_t));
139 osd_cmd.cmd_data = cmdData;
140 osd_cmd.result_data = resultData;
141 osd_cmd.result_len = sizeof(resultData);
144 BitBuffer_SetBits(&cmdBuf, 8, Index);
145 osd_cmd.cmd_len = HdffCmdSetLength(&cmdBuf);
146 err = ioctl(OsdDevice, OSD_RAW_CMD, &osd_cmd);
147 if (err == 0)
148 {
149 if (osd_cmd.result_len > 0)
150 {
151 uint8_t index = resultData[6];
152 uint8_t textLen = resultData[7];
153 if (index == Index && textLen > 0)
154 {
155 if (textLen >= MaxLength)
156 {
157 textLen = MaxLength - 1;
158 }
159 memcpy(String, resultData + 8, textLen);
160 String[textLen] = 0;
161 }
162 }
163 }
164 return err;
165}
void BitBuffer_Init(BitBuffer_t *BitBuffer, uint8_t *Data, uint32_t MaxLength)
Definition bitbuffer.c:28
void BitBuffer_SetBits(BitBuffer_t *BitBuffer, int NumBits, uint32_t Data)
Definition bitbuffer.c:37
void HdffCmdBuildHeader(BitBuffer_t *MsgBuf, HdffMessageType_t MsgType, HdffMessageGroup_t MsgGroup, HdffMessageId_t MsgId)
uint32_t HdffCmdSetLength(BitBuffer_t *MsgBuf)
#define OSD_RAW_CMD
struct osd_raw_cmd_s osd_raw_cmd_t
@ HDFF_MSG_GROUP_GENERIC
@ HDFF_MSG_TYPE_COMMAND
@ HDFF_MSG_GEN_GET_FIRMWARE_VERSION
@ HDFF_MSG_GEN_GET_INTERFACE_VERSION
@ HDFF_MSG_GEN_GET_COPYRIGHTS
int HdffCmdGetCopyrights(int OsdDevice, uint8_t Index, char *String, uint32_t MaxLength)
int HdffCmdGetInterfaceVersion(int OsdDevice, uint32_t *Version, char *String, uint32_t MaxLength)
int HdffCmdGetFirmwareVersion(int OsdDevice, uint32_t *Version, char *String, uint32_t MaxLength)
void * result_data
const void * cmd_data