path: root/tvapi/libtv/tvsetting/CBlobDeviceFile.cpp (plain)
blob: e86c3b04245326f155da9d503c4591ef226325d3

1	#define LOG_TAG "BLOB_FILE"
2
3	#include <stdio.h>
4	#include <unistd.h>
5	#include <string.h>
6	#include <sys/stat.h>
7	#include <fcntl.h>
8	#include <errno.h>
9	#include "tvconfig/tvconfig.h"
10	#include "CBlobDeviceFile.h"
11	#include "CTvLog.h"
12
13	CBlobDeviceFile::CBlobDeviceFile()
14	{
15	m_dev_total_size = 4 * 1024;
16	m_dev_fd = -1;
17	mDataBuf = new unsigned char[m_dev_total_size];
18
19	const char *device_path = config_get_str(CFG_SECTION_SETTING, "device_path", "/param/default_data");
20	const char *device_size = config_get_str(CFG_SECTION_SETTING, "device_size", "0x1000");
21	strcpy(m_dev_path, device_path);
22	}
23
24	CBlobDeviceFile::~CBlobDeviceFile()
25	{
26	if (mDataBuf != NULL) {
27	delete mDataBuf;
28	mDataBuf = NULL;
29	}
30	CloseDevice();
31	}
32
33	int CBlobDeviceFile::WriteBytes(int offset, int size, unsigned char *buf)
34	{
35
36	lseek(m_dev_fd, offset, SEEK_SET);
37	write(m_dev_fd, buf, size);
38	//not need
39	//fsync(device_fd);
40	return 0;
41	}
42	int CBlobDeviceFile::ReadBytes(int offset, int size, unsigned char *buf)
43	{
44	lseek(m_dev_fd, offset, SEEK_SET);
45	read(m_dev_fd, buf, size);
46	return 0;
47	}
48	int CBlobDeviceFile::EraseAllData()
49	{
50	return 0;
51	}
52	int CBlobDeviceFile::InitCheck()
53	{
54	return 0;
55	}
56
57	int CBlobDeviceFile::OpenDevice()
58	{
59	if (strlen(m_dev_path) <= 0) return -1;
60
61	m_dev_fd = open(m_dev_path, O_RDWR | O_SYNC | O_CREAT, S_IRUSR | S_IWUSR);
62
63	if (m_dev_fd < 0) {
64	LOGE("%s, Open device file \"%s\" error: %s.\n", "TV", m_dev_path, strerror(errno));
65	return -1;
66	}
67
68	return 0;
69	}
70
71	int CBlobDeviceFile::CloseDevice()
72	{
73	if (m_dev_fd >= 0) {
74	close(m_dev_fd);
75	m_dev_fd = -1;
76	}
77	return 0;
78	}
79