add ota algorithm for device

1. effective "Differential Upgrade" patch algorithm with high compression rate
2. effective recovery algorithm support recovery firmware in blocks which has low memory consumption and wear-leveling strategies, especially suitable for embeded devices with low RAM.
3. add sample ota bootloader project, see:
board\TencentOS_tiny_EVB_MX_Plus\KEIL\ota\ota_bootloader_recovery
4. add sample application project for download firmware through http, see:
board\TencentOS_tiny_EVB_MX_Plus\KEIL\ota\ota_application_download_through_http
5. add sample application project for download firmware through qcloud explorer console, see:
board\TencentOS_tiny_EVB_MX_Plus\KEIL\ota\ota_application_download_through_qcloud_iot_explorer
6. an OTA markdown document is pending
This commit is contained in:
daishengdong
2020-06-02 15:03:42 +08:00
parent 84faf16765
commit 5b51d50ade
177 changed files with 42367 additions and 1233 deletions

View File

@@ -0,0 +1,230 @@
/* Bra.c -- Converters for RISC code
2017-04-04 : Igor Pavlov : Public domain */
#include "Precomp.h"
#include "CpuArch.h"
#include "Bra.h"
SizeT ARM_Convert(Byte *data, SizeT size, UInt32 ip, int encoding)
{
Byte *p;
const Byte *lim;
size &= ~(size_t)3;
ip += 4;
p = data;
lim = data + size;
if (encoding)
for (;;)
{
for (;;)
{
if (p >= lim)
return p - data;
p += 4;
if (p[-1] == 0xEB)
break;
}
{
UInt32 v = GetUi32(p - 4);
v <<= 2;
v += ip + (UInt32)(p - data);
v >>= 2;
v &= 0x00FFFFFF;
v |= 0xEB000000;
SetUi32(p - 4, v);
}
}
for (;;)
{
for (;;)
{
if (p >= lim)
return p - data;
p += 4;
if (p[-1] == 0xEB)
break;
}
{
UInt32 v = GetUi32(p - 4);
v <<= 2;
v -= ip + (UInt32)(p - data);
v >>= 2;
v &= 0x00FFFFFF;
v |= 0xEB000000;
SetUi32(p - 4, v);
}
}
}
SizeT ARMT_Convert(Byte *data, SizeT size, UInt32 ip, int encoding)
{
Byte *p;
const Byte *lim;
size &= ~(size_t)1;
p = data;
lim = data + size - 4;
if (encoding)
for (;;)
{
UInt32 b1;
for (;;)
{
UInt32 b3;
if (p > lim)
return p - data;
b1 = p[1];
b3 = p[3];
p += 2;
b1 ^= 8;
if ((b3 & b1) >= 0xF8)
break;
}
{
UInt32 v =
((UInt32)b1 << 19)
+ (((UInt32)p[1] & 0x7) << 8)
+ (((UInt32)p[-2] << 11))
+ (p[0]);
p += 2;
{
UInt32 cur = (ip + (UInt32)(p - data)) >> 1;
v += cur;
}
p[-4] = (Byte)(v >> 11);
p[-3] = (Byte)(0xF0 | ((v >> 19) & 0x7));
p[-2] = (Byte)v;
p[-1] = (Byte)(0xF8 | (v >> 8));
}
}
for (;;)
{
UInt32 b1;
for (;;)
{
UInt32 b3;
if (p > lim)
return p - data;
b1 = p[1];
b3 = p[3];
p += 2;
b1 ^= 8;
if ((b3 & b1) >= 0xF8)
break;
}
{
UInt32 v =
((UInt32)b1 << 19)
+ (((UInt32)p[1] & 0x7) << 8)
+ (((UInt32)p[-2] << 11))
+ (p[0]);
p += 2;
{
UInt32 cur = (ip + (UInt32)(p - data)) >> 1;
v -= cur;
}
/*
SetUi16(p - 4, (UInt16)(((v >> 11) & 0x7FF) | 0xF000));
SetUi16(p - 2, (UInt16)(v | 0xF800));
*/
p[-4] = (Byte)(v >> 11);
p[-3] = (Byte)(0xF0 | ((v >> 19) & 0x7));
p[-2] = (Byte)v;
p[-1] = (Byte)(0xF8 | (v >> 8));
}
}
}
SizeT PPC_Convert(Byte *data, SizeT size, UInt32 ip, int encoding)
{
Byte *p;
const Byte *lim;
size &= ~(size_t)3;
ip -= 4;
p = data;
lim = data + size;
for (;;)
{
for (;;)
{
if (p >= lim)
return p - data;
p += 4;
/* if ((v & 0xFC000003) == 0x48000001) */
if ((p[-4] & 0xFC) == 0x48 && (p[-1] & 3) == 1)
break;
}
{
UInt32 v = GetBe32(p - 4);
if (encoding)
v += ip + (UInt32)(p - data);
else
v -= ip + (UInt32)(p - data);
v &= 0x03FFFFFF;
v |= 0x48000000;
SetBe32(p - 4, v);
}
}
}
SizeT SPARC_Convert(Byte *data, SizeT size, UInt32 ip, int encoding)
{
Byte *p;
const Byte *lim;
size &= ~(size_t)3;
ip -= 4;
p = data;
lim = data + size;
for (;;)
{
for (;;)
{
if (p >= lim)
return p - data;
/*
v = GetBe32(p);
p += 4;
m = v + ((UInt32)5 << 29);
m ^= (UInt32)7 << 29;
m += (UInt32)1 << 22;
if ((m & ((UInt32)0x1FF << 23)) == 0)
break;
*/
p += 4;
if ((p[-4] == 0x40 && (p[-3] & 0xC0) == 0) ||
(p[-4] == 0x7F && (p[-3] >= 0xC0)))
break;
}
{
UInt32 v = GetBe32(p - 4);
v <<= 2;
if (encoding)
v += ip + (UInt32)(p - data);
else
v -= ip + (UInt32)(p - data);
v &= 0x01FFFFFF;
v -= (UInt32)1 << 24;
v ^= 0xFF000000;
v >>= 2;
v |= 0x40000000;
SetBe32(p - 4, v);
}
}
}