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authorCarl-Daniel Hailfinger <Carl-Daniel Hailfinger>2006-09-14 15:12:36 +0000
committerRonald G. Minnich <rminnich@gmail.com>2006-09-14 15:12:36 +0000
commitcba07dd682f0142474f0aa235e97b6fcbc34d760 (patch)
treef825a9550774d81ebf92ca5ed7fd1d29c30eba2d
parent7d9441276f144f0ffc5fe1523daaa63f916b9a25 (diff)
downloadcoreboot-cba07dd682f0142474f0aa235e97b6fcbc34d760.tar.xz
additions and mods for lzma.
Signed-off-by: Carl-Daniel Hailfinger Signed-off-by: Ronald G. Minnich git-svn-id: svn://svn.coreboot.org/coreboot/trunk@2413 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
-rw-r--r--src/arch/i386/Config.lb9
-rw-r--r--src/config/Options.lb12
-rw-r--r--src/lib/lzma.c39
-rw-r--r--src/lib/lzmadecode.c398
-rw-r--r--src/lib/lzmadecode.h67
-rw-r--r--src/lib/nrv2b.c2
-rw-r--r--src/mainboard/amd/rumba/Options.lb2
-rw-r--r--src/mainboard/artecgroup/dbe61/Options.lb2
-rw-r--r--src/mainboard/olpc/rev_a/Options.lb3
-rw-r--r--src/mainboard/technologic/ts5300/Options.lb2
-rw-r--r--src/mainboard/via/epia-m/Options.lb2
-rw-r--r--src/stream/rom_stream.c47
-rw-r--r--targets/artecgroup/dbe61/Config.lb2
-rw-r--r--targets/olpc/rev_a/Config.1M.lb2
-rw-r--r--targets/olpc/rev_a/Config.SPI.lb5
-rw-r--r--targets/olpc/rev_a/Config.lb2
16 files changed, 578 insertions, 18 deletions
diff --git a/src/arch/i386/Config.lb b/src/arch/i386/Config.lb
index 6f614caf01..1b0dbf7959 100644
--- a/src/arch/i386/Config.lb
+++ b/src/arch/i386/Config.lb
@@ -28,8 +28,15 @@ makerule payload.nrv2b
action "./nrv2b e $(PAYLOAD) $@"
end
+# unlike nrv2b, lzma is a huge build mess. If they want lzma, they have to have built it
+makerule payload.lzma
+ depends "$(PAYLOAD) "
+ action "lzma e $(PAYLOAD) $@"
+end
+
makedefine PAYLOAD-1:=payload
-makedefine PAYLOAD-$(CONFIG_COMPRESSED_ROM_STREAM):=payload.nrv2b
+makedefine PAYLOAD-$(CONFIG_COMPRESSED_ROM_STREAM_NRV2B):=payload.nrv2b
+makedefine PAYLOAD-$(CONFIG_COMPRESSED_ROM_STREAM_LZMA):=payload.lzma
makerule linuxbios.rom
depends "linuxbios.strip buildrom $(PAYLOAD-1)"
diff --git a/src/config/Options.lb b/src/config/Options.lb
index b4b971bc2c..00042b8cf1 100644
--- a/src/config/Options.lb
+++ b/src/config/Options.lb
@@ -572,7 +572,17 @@ end
define CONFIG_COMPRESSED_ROM_STREAM
default 0
export always
- comment "compressed boot image is located in ROM"
+ comment "compressed boot image is located in ROM and is assumed to be NRV2B (deprecated)"
+end
+define CONFIG_COMPRESSED_ROM_STREAM_NRV2B
+ default 0
+ export always
+ comment "NRV2B compressed boot image is located in ROM"
+end
+define CONFIG_COMPRESSED_ROM_STREAM_LZMA
+ default 0
+ export always
+ comment "LZMA compressed boot image is located in ROM"
end
define CONFIG_PRECOMPRESSED_ROM_STREAM
default 0
diff --git a/src/lib/lzma.c b/src/lib/lzma.c
new file mode 100644
index 0000000000..42746e1029
--- /dev/null
+++ b/src/lib/lzma.c
@@ -0,0 +1,39 @@
+/*
+
+LinuxBIOS interface to memory-saving variant of LZMA decoder
+(C)opyright 2006 Carl-Daniel Hailfinger
+Released under the GNU GPL
+
+*/
+
+#include "lzmadecode.c"
+
+
+static unsigned long ulzma(unsigned char * src, unsigned char * dst)
+{
+ unsigned char properties[LZMA_PROPERTIES_SIZE];
+ UInt32 outSize;
+ SizeT inProcessed;
+ SizeT outProcessed;
+ int res;
+ CLzmaDecoderState state;
+ SizeT mallocneeds;
+ unsigned char scratchpad[15980];
+
+ memcpy(properties, src, LZMA_PROPERTIES_SIZE);
+ outSize = *(UInt32 *)(src + LZMA_PROPERTIES_SIZE);
+ if (LzmaDecodeProperties(&state.Properties, properties, LZMA_PROPERTIES_SIZE) != LZMA_RESULT_OK) {
+ printk_warning("Incorrect stream properties\n");
+ }
+ mallocneeds = (LzmaGetNumProbs(&state.Properties) * sizeof(CProb));
+ if (mallocneeds > 15980) {
+ printk_warning("Decoder scratchpad too small!\n");
+ }
+ state.Probs = (CProb *)scratchpad;
+ res = LzmaDecode(&state, src + LZMA_PROPERTIES_SIZE + 8, (SizeT)0xffffffff, &inProcessed,
+ dst, outSize, &outProcessed);
+ if (res != 0) {
+ printk_warning("Decoding error = %d\n", res);
+ }
+ return outSize;
+}
diff --git a/src/lib/lzmadecode.c b/src/lib/lzmadecode.c
new file mode 100644
index 0000000000..1c96283fbb
--- /dev/null
+++ b/src/lib/lzmadecode.c
@@ -0,0 +1,398 @@
+/*
+ LzmaDecode.c
+ LZMA Decoder (optimized for Speed version)
+
+ LZMA SDK 4.40 Copyright (c) 1999-2006 Igor Pavlov (2006-05-01)
+ http://www.7-zip.org/
+
+ LZMA SDK is licensed under two licenses:
+ 1) GNU Lesser General Public License (GNU LGPL)
+ 2) Common Public License (CPL)
+ It means that you can select one of these two licenses and
+ follow rules of that license.
+
+ SPECIAL EXCEPTION:
+ Igor Pavlov, as the author of this Code, expressly permits you to
+ statically or dynamically link your Code (or bind by name) to the
+ interfaces of this file without subjecting your linked Code to the
+ terms of the CPL or GNU LGPL. Any modifications or additions
+ to this file, however, are subject to the LGPL or CPL terms.
+*/
+
+#include "lzmadecode.h"
+
+#define kNumTopBits 24
+#define kTopValue ((UInt32)1 << kNumTopBits)
+
+#define kNumBitModelTotalBits 11
+#define kBitModelTotal (1 << kNumBitModelTotalBits)
+#define kNumMoveBits 5
+
+#define RC_READ_BYTE (*Buffer++)
+
+#define RC_INIT2 Code = 0; Range = 0xFFFFFFFF; \
+ { int i; for(i = 0; i < 5; i++) { RC_TEST; Code = (Code << 8) | RC_READ_BYTE; }}
+
+
+#define RC_TEST { if (Buffer == BufferLim) return LZMA_RESULT_DATA_ERROR; }
+
+#define RC_INIT(buffer, bufferSize) Buffer = buffer; BufferLim = buffer + bufferSize; RC_INIT2
+
+
+#define RC_NORMALIZE if (Range < kTopValue) { RC_TEST; Range <<= 8; Code = (Code << 8) | RC_READ_BYTE; }
+
+#define IfBit0(p) RC_NORMALIZE; bound = (Range >> kNumBitModelTotalBits) * *(p); if (Code < bound)
+#define UpdateBit0(p) Range = bound; *(p) += (kBitModelTotal - *(p)) >> kNumMoveBits;
+#define UpdateBit1(p) Range -= bound; Code -= bound; *(p) -= (*(p)) >> kNumMoveBits;
+
+#define RC_GET_BIT2(p, mi, A0, A1) IfBit0(p) \
+ { UpdateBit0(p); mi <<= 1; A0; } else \
+ { UpdateBit1(p); mi = (mi + mi) + 1; A1; }
+
+#define RC_GET_BIT(p, mi) RC_GET_BIT2(p, mi, ; , ;)
+
+#define RangeDecoderBitTreeDecode(probs, numLevels, res) \
+ { int i = numLevels; res = 1; \
+ do { CProb *p = probs + res; RC_GET_BIT(p, res) } while(--i != 0); \
+ res -= (1 << numLevels); }
+
+
+#define kNumPosBitsMax 4
+#define kNumPosStatesMax (1 << kNumPosBitsMax)
+
+#define kLenNumLowBits 3
+#define kLenNumLowSymbols (1 << kLenNumLowBits)
+#define kLenNumMidBits 3
+#define kLenNumMidSymbols (1 << kLenNumMidBits)
+#define kLenNumHighBits 8
+#define kLenNumHighSymbols (1 << kLenNumHighBits)
+
+#define LenChoice 0
+#define LenChoice2 (LenChoice + 1)
+#define LenLow (LenChoice2 + 1)
+#define LenMid (LenLow + (kNumPosStatesMax << kLenNumLowBits))
+#define LenHigh (LenMid + (kNumPosStatesMax << kLenNumMidBits))
+#define kNumLenProbs (LenHigh + kLenNumHighSymbols)
+
+
+#define kNumStates 12
+#define kNumLitStates 7
+
+#define kStartPosModelIndex 4
+#define kEndPosModelIndex 14
+#define kNumFullDistances (1 << (kEndPosModelIndex >> 1))
+
+#define kNumPosSlotBits 6
+#define kNumLenToPosStates 4
+
+#define kNumAlignBits 4
+#define kAlignTableSize (1 << kNumAlignBits)
+
+#define kMatchMinLen 2
+
+#define IsMatch 0
+#define IsRep (IsMatch + (kNumStates << kNumPosBitsMax))
+#define IsRepG0 (IsRep + kNumStates)
+#define IsRepG1 (IsRepG0 + kNumStates)
+#define IsRepG2 (IsRepG1 + kNumStates)
+#define IsRep0Long (IsRepG2 + kNumStates)
+#define PosSlot (IsRep0Long + (kNumStates << kNumPosBitsMax))
+#define SpecPos (PosSlot + (kNumLenToPosStates << kNumPosSlotBits))
+#define Align (SpecPos + kNumFullDistances - kEndPosModelIndex)
+#define LenCoder (Align + kAlignTableSize)
+#define RepLenCoder (LenCoder + kNumLenProbs)
+#define Literal (RepLenCoder + kNumLenProbs)
+
+#if Literal != LZMA_BASE_SIZE
+StopCompilingDueBUG
+#endif
+
+int LzmaDecodeProperties(CLzmaProperties *propsRes, const unsigned char *propsData, int size)
+{
+ unsigned char prop0;
+ if (size < LZMA_PROPERTIES_SIZE)
+ return LZMA_RESULT_DATA_ERROR;
+ prop0 = propsData[0];
+ if (prop0 >= (9 * 5 * 5))
+ return LZMA_RESULT_DATA_ERROR;
+ {
+ for (propsRes->pb = 0; prop0 >= (9 * 5); propsRes->pb++, prop0 -= (9 * 5));
+ for (propsRes->lp = 0; prop0 >= 9; propsRes->lp++, prop0 -= 9);
+ propsRes->lc = prop0;
+ /*
+ unsigned char remainder = (unsigned char)(prop0 / 9);
+ propsRes->lc = prop0 % 9;
+ propsRes->pb = remainder / 5;
+ propsRes->lp = remainder % 5;
+ */
+ }
+
+ return LZMA_RESULT_OK;
+}
+
+#define kLzmaStreamWasFinishedId (-1)
+
+int LzmaDecode(CLzmaDecoderState *vs,
+ const unsigned char *inStream, SizeT inSize, SizeT *inSizeProcessed,
+ unsigned char *outStream, SizeT outSize, SizeT *outSizeProcessed)
+{
+ CProb *p = vs->Probs;
+ SizeT nowPos = 0;
+ Byte previousByte = 0;
+ UInt32 posStateMask = (1 << (vs->Properties.pb)) - 1;
+ UInt32 literalPosMask = (1 << (vs->Properties.lp)) - 1;
+ int lc = vs->Properties.lc;
+
+
+ int state = 0;
+ UInt32 rep0 = 1, rep1 = 1, rep2 = 1, rep3 = 1;
+ int len = 0;
+ const Byte *Buffer;
+ const Byte *BufferLim;
+ UInt32 Range;
+ UInt32 Code;
+
+ *inSizeProcessed = 0;
+ *outSizeProcessed = 0;
+
+ {
+ UInt32 i;
+ UInt32 numProbs = Literal + ((UInt32)LZMA_LIT_SIZE << (lc + vs->Properties.lp));
+ for (i = 0; i < numProbs; i++)
+ p[i] = kBitModelTotal >> 1;
+ }
+
+ RC_INIT(inStream, inSize);
+
+
+ while(nowPos < outSize)
+ {
+ CProb *prob;
+ UInt32 bound;
+ int posState = (int)(
+ (nowPos
+ )
+ & posStateMask);
+
+ prob = p + IsMatch + (state << kNumPosBitsMax) + posState;
+ IfBit0(prob)
+ {
+ int symbol = 1;
+ UpdateBit0(prob)
+ prob = p + Literal + (LZMA_LIT_SIZE *
+ (((
+ (nowPos
+ )
+ & literalPosMask) << lc) + (previousByte >> (8 - lc))));
+
+ if (state >= kNumLitStates)
+ {
+ int matchByte;
+ matchByte = outStream[nowPos - rep0];
+ do
+ {
+ int bit;
+ CProb *probLit;
+ matchByte <<= 1;
+ bit = (matchByte & 0x100);
+ probLit = prob + 0x100 + bit + symbol;
+ RC_GET_BIT2(probLit, symbol, if (bit != 0) break, if (bit == 0) break)
+ }
+ while (symbol < 0x100);
+ }
+ while (symbol < 0x100)
+ {
+ CProb *probLit = prob + symbol;
+ RC_GET_BIT(probLit, symbol)
+ }
+ previousByte = (Byte)symbol;
+
+ outStream[nowPos++] = previousByte;
+ if (state < 4) state = 0;
+ else if (state < 10) state -= 3;
+ else state -= 6;
+ }
+ else
+ {
+ UpdateBit1(prob);
+ prob = p + IsRep + state;
+ IfBit0(prob)
+ {
+ UpdateBit0(prob);
+ rep3 = rep2;
+ rep2 = rep1;
+ rep1 = rep0;
+ state = state < kNumLitStates ? 0 : 3;
+ prob = p + LenCoder;
+ }
+ else
+ {
+ UpdateBit1(prob);
+ prob = p + IsRepG0 + state;
+ IfBit0(prob)
+ {
+ UpdateBit0(prob);
+ prob = p + IsRep0Long + (state << kNumPosBitsMax) + posState;
+ IfBit0(prob)
+ {
+ UpdateBit0(prob);
+
+ if (nowPos == 0)
+ return LZMA_RESULT_DATA_ERROR;
+
+ state = state < kNumLitStates ? 9 : 11;
+ previousByte = outStream[nowPos - rep0];
+ outStream[nowPos++] = previousByte;
+
+ continue;
+ }
+ else
+ {
+ UpdateBit1(prob);
+ }
+ }
+ else
+ {
+ UInt32 distance;
+ UpdateBit1(prob);
+ prob = p + IsRepG1 + state;
+ IfBit0(prob)
+ {
+ UpdateBit0(prob);
+ distance = rep1;
+ }
+ else
+ {
+ UpdateBit1(prob);
+ prob = p + IsRepG2 + state;
+ IfBit0(prob)
+ {
+ UpdateBit0(prob);
+ distance = rep2;
+ }
+ else
+ {
+ UpdateBit1(prob);
+ distance = rep3;
+ rep3 = rep2;
+ }
+ rep2 = rep1;
+ }
+ rep1 = rep0;
+ rep0 = distance;
+ }
+ state = state < kNumLitStates ? 8 : 11;
+ prob = p + RepLenCoder;
+ }
+ {
+ int numBits, offset;
+ CProb *probLen = prob + LenChoice;
+ IfBit0(probLen)
+ {
+ UpdateBit0(probLen);
+ probLen = prob + LenLow + (posState << kLenNumLowBits);
+ offset = 0;
+ numBits = kLenNumLowBits;
+ }
+ else
+ {
+ UpdateBit1(probLen);
+ probLen = prob + LenChoice2;
+ IfBit0(probLen)
+ {
+ UpdateBit0(probLen);
+ probLen = prob + LenMid + (posState << kLenNumMidBits);
+ offset = kLenNumLowSymbols;
+ numBits = kLenNumMidBits;
+ }
+ else
+ {
+ UpdateBit1(probLen);
+ probLen = prob + LenHigh;
+ offset = kLenNumLowSymbols + kLenNumMidSymbols;
+ numBits = kLenNumHighBits;
+ }
+ }
+ RangeDecoderBitTreeDecode(probLen, numBits, len);
+ len += offset;
+ }
+
+ if (state < 4)
+ {
+ int posSlot;
+ state += kNumLitStates;
+ prob = p + PosSlot +
+ ((len < kNumLenToPosStates ? len : kNumLenToPosStates - 1) <<
+ kNumPosSlotBits);
+ RangeDecoderBitTreeDecode(prob, kNumPosSlotBits, posSlot);
+ if (posSlot >= kStartPosModelIndex)
+ {
+ int numDirectBits = ((posSlot >> 1) - 1);
+ rep0 = (2 | ((UInt32)posSlot & 1));
+ if (posSlot < kEndPosModelIndex)
+ {
+ rep0 <<= numDirectBits;
+ prob = p + SpecPos + rep0 - posSlot - 1;
+ }
+ else
+ {
+ numDirectBits -= kNumAlignBits;
+ do
+ {
+ RC_NORMALIZE
+ Range >>= 1;
+ rep0 <<= 1;
+ if (Code >= Range)
+ {
+ Code -= Range;
+ rep0 |= 1;
+ }
+ }
+ while (--numDirectBits != 0);
+ prob = p + Align;
+ rep0 <<= kNumAlignBits;
+ numDirectBits = kNumAlignBits;
+ }
+ {
+ int i = 1;
+ int mi = 1;
+ do
+ {
+ CProb *prob3 = prob + mi;
+ RC_GET_BIT2(prob3, mi, ; , rep0 |= i);
+ i <<= 1;
+ }
+ while(--numDirectBits != 0);
+ }
+ }
+ else
+ rep0 = posSlot;
+ if (++rep0 == (UInt32)(0))
+ {
+ /* it's for stream version */
+ len = kLzmaStreamWasFinishedId;
+ break;
+ }
+ }
+
+ len += kMatchMinLen;
+ if (rep0 > nowPos)
+ return LZMA_RESULT_DATA_ERROR;
+
+
+ do
+ {
+ previousByte = outStream[nowPos - rep0];
+ len--;
+ outStream[nowPos++] = previousByte;
+ }
+ while(len != 0 && nowPos < outSize);
+ }
+ }
+ RC_NORMALIZE;
+
+
+ *inSizeProcessed = (SizeT)(Buffer - inStream);
+ *outSizeProcessed = nowPos;
+ return LZMA_RESULT_OK;
+}
diff --git a/src/lib/lzmadecode.h b/src/lib/lzmadecode.h
new file mode 100644
index 0000000000..dedde0de67
--- /dev/null
+++ b/src/lib/lzmadecode.h
@@ -0,0 +1,67 @@
+/*
+ LzmaDecode.h
+ LZMA Decoder interface
+
+ LZMA SDK 4.40 Copyright (c) 1999-2006 Igor Pavlov (2006-05-01)
+ http://www.7-zip.org/
+
+ LZMA SDK is licensed under two licenses:
+ 1) GNU Lesser General Public License (GNU LGPL)
+ 2) Common Public License (CPL)
+ It means that you can select one of these two licenses and
+ follow rules of that license.
+
+ SPECIAL EXCEPTION:
+ Igor Pavlov, as the author of this code, expressly permits you to
+ statically or dynamically link your code (or bind by name) to the
+ interfaces of this file without subjecting your linked code to the
+ terms of the CPL or GNU LGPL. Any modifications or additions
+ to this file, however, are subject to the LGPL or CPL terms.
+*/
+
+#ifndef __LZMADECODE_H
+#define __LZMADECODE_H
+
+typedef unsigned char Byte;
+typedef unsigned short UInt16;
+typedef unsigned int UInt32;
+typedef UInt32 SizeT;
+
+#define CProb UInt16
+
+#define LZMA_RESULT_OK 0
+#define LZMA_RESULT_DATA_ERROR 1
+
+
+#define LZMA_BASE_SIZE 1846
+#define LZMA_LIT_SIZE 768
+
+#define LZMA_PROPERTIES_SIZE 5
+
+typedef struct _CLzmaProperties
+{
+ int lc;
+ int lp;
+ int pb;
+}CLzmaProperties;
+
+int LzmaDecodeProperties(CLzmaProperties *propsRes, const unsigned char *propsData, int size);
+
+#define LzmaGetNumProbs(Properties) (LZMA_BASE_SIZE + (LZMA_LIT_SIZE << ((Properties)->lc + (Properties)->lp)))
+
+#define kLzmaNeedInitId (-2)
+
+typedef struct _CLzmaDecoderState
+{
+ CLzmaProperties Properties;
+ CProb *Probs;
+
+
+} CLzmaDecoderState;
+
+
+int LzmaDecode(CLzmaDecoderState *vs,
+ const unsigned char *inStream, SizeT inSize, SizeT *inSizeProcessed,
+ unsigned char *outStream, SizeT outSize, SizeT *outSizeProcessed);
+
+#endif
diff --git a/src/lib/nrv2b.c b/src/lib/nrv2b.c
index 4dd71e52a7..db92ceb154 100644
--- a/src/lib/nrv2b.c
+++ b/src/lib/nrv2b.c
@@ -35,7 +35,7 @@ static unsigned long unrv2b(uint8_t * src, uint8_t * dst)
uint32_t bb = 0;
unsigned bc = 0;
const uint8_t *m_pos;
- unsigned long file_len = *(unsigned long *) src;
+// unsigned long file_len = *(unsigned long *) src;
// we only have printk_debug in copy_and_run.c if CONFIG_USE_INIT is
// not set, so comment it out.
diff --git a/src/mainboard/amd/rumba/Options.lb b/src/mainboard/amd/rumba/Options.lb
index d55d8ce923..4c1030a315 100644
--- a/src/mainboard/amd/rumba/Options.lb
+++ b/src/mainboard/amd/rumba/Options.lb
@@ -21,7 +21,7 @@ uses ROM_IMAGE_SIZE
uses ROM_SECTION_SIZE
uses ROM_SECTION_OFFSET
uses CONFIG_ROM_STREAM_START
-uses CONFIG_COMPRESSED_ROM_STREAM
+uses CONFIG_COMPRESSED_ROM_STREAM_NRV2B
uses PAYLOAD_SIZE
uses _ROMBASE
uses _RAMBASE
diff --git a/src/mainboard/artecgroup/dbe61/Options.lb b/src/mainboard/artecgroup/dbe61/Options.lb
index 1112fcee2c..ec4c78c330 100644
--- a/src/mainboard/artecgroup/dbe61/Options.lb
+++ b/src/mainboard/artecgroup/dbe61/Options.lb
@@ -21,7 +21,7 @@ uses ROM_IMAGE_SIZE
uses ROM_SECTION_SIZE
uses ROM_SECTION_OFFSET
uses CONFIG_ROM_STREAM_START
-uses CONFIG_COMPRESSED_ROM_STREAM
+uses CONFIG_COMPRESSED_ROM_STREAM_NRV2B
uses PAYLOAD_SIZE
uses _ROMBASE
uses _RAMBASE
diff --git a/src/mainboard/olpc/rev_a/Options.lb b/src/mainboard/olpc/rev_a/Options.lb
index e7a96ba15e..36b0ab956f 100644
--- a/src/mainboard/olpc/rev_a/Options.lb
+++ b/src/mainboard/olpc/rev_a/Options.lb
@@ -21,7 +21,8 @@ uses ROM_IMAGE_SIZE
uses ROM_SECTION_SIZE
uses ROM_SECTION_OFFSET
uses CONFIG_ROM_STREAM_START
-uses CONFIG_COMPRESSED_ROM_STREAM
+uses CONFIG_COMPRESSED_ROM_STREAM_NRV2B
+uses CONFIG_COMPRESSED_ROM_STREAM_LZMA
uses CONFIG_PRECOMPRESSED_ROM_STREAM
uses PAYLOAD_SIZE
uses _ROMBASE
diff --git a/src/mainboard/technologic/ts5300/Options.lb b/src/mainboard/technologic/ts5300/Options.lb
index 079086c1a0..d457d027e9 100644
--- a/src/mainboard/technologic/ts5300/Options.lb
+++ b/src/mainboard/technologic/ts5300/Options.lb
@@ -6,7 +6,7 @@ uses HAVE_HARD_RESET
uses HAVE_OPTION_TABLE
uses USE_OPTION_TABLE
uses CONFIG_COMPRESS
-uses CONFIG_COMPRESSED_ROM_STREAM
+uses CONFIG_COMPRESSED_ROM_STREAM_NRV2B
uses CONFIG_ROM_STREAM
uses CONFIG_USE_INIT
uses IRQ_SLOT_COUNT
diff --git a/src/mainboard/via/epia-m/Options.lb b/src/mainboard/via/epia-m/Options.lb
index cd8fcf1111..7342a5e07e 100644
--- a/src/mainboard/via/epia-m/Options.lb
+++ b/src/mainboard/via/epia-m/Options.lb
@@ -21,7 +21,7 @@ uses ROM_IMAGE_SIZE
uses ROM_SECTION_SIZE
uses ROM_SECTION_OFFSET
uses CONFIG_ROM_STREAM_START
-uses CONFIG_COMPRESSED_ROM_STREAM
+uses CONFIG_COMPRESSED_ROM_STREAM_NRV2B
uses PAYLOAD_SIZE
uses _ROMBASE
uses _RAMBASE
diff --git a/src/stream/rom_stream.c b/src/stream/rom_stream.c
index ef8df9f394..711aa1f58d 100644
--- a/src/stream/rom_stream.c
+++ b/src/stream/rom_stream.c
@@ -4,10 +4,30 @@
#include <stream/read_bytes.h>
#include <string.h>
-#if CONFIG_COMPRESSED_ROM_STREAM || CONFIG_PRECOMPRESSED_ROM_STREAM
+/* if they set the precompressed rom stream, they better have set a type */
+#if CONFIG_PRECOMPRESSED_ROM_STREAM && ((!CONFIG_COMPRESSED_ROM_STREAM) && (!CONFIG_COMPRESSED_ROM_STREAM_NRV2B) && (!CONFIG_COMPRESSED_ROM_STREAM_LZMA))
+#error "You set CONFIG_PRECOMPRESSED_ROM_STREAM but need to set CONFIG_COMPRESSED_ROM_STREAM (implies NRV2B, deprecated) or CONFIG_COMPRESSED_ROM_STREAM_NRV2B or CONFIG_COMPRESSED_ROM_STREAM_LZMA
+#endif
+
+/* If they set ANY of these, then we're compressed */
+#if ((CONFIG_COMPRESSED_ROM_STREAM) || (CONFIG_COMPRESSED_ROM_STREAM_NRV2B) || (CONFIG_COMPRESSED_ROM_STREAM_LZMA))
+#define UNCOMPRESSER 1
+extern unsigned char _heap, _eheap;
+#endif
+
+#if (CONFIG_COMPRESSED_ROM_STREAM) || (CONFIG_COMPRESSED_ROM_STREAM_NRV2B)
+#define HAVE_UNCOMPRESSER 1
// include generic nrv2b
#include "../lib/nrv2b.c"
-extern unsigned char _heap, _eheap;
+#endif
+
+#if (CONFIG_COMPRESSED_ROM_STREAM_LZMA)
+#if HAVE_UNCOMPRESSER
+#error "You're defining more than one compression type, which is not allowed (of course)"
+#endif
+#define HAVE_UNCOMPRESSER 1
+// include generic nrv2b
+#include "../lib/lzma.c"
#endif
#ifndef CONFIG_ROM_STREAM_START
@@ -29,9 +49,21 @@ extern unsigned char _heap, _eheap;
static const unsigned char *rom;
+#if UNCOMPRESSER
+unsigned long
+uncompress(uint8_t * rom_start, uint8_t *dest )
+{
+#if (CONFIG_COMPRESSED_ROM_STREAM) || (CONFIG_COMPRESSED_ROM_STREAM_NRV2B)
+ return unrv2b(rom_start, dest);
+#endif
+#if (CONFIG_COMPRESSED_ROM_STREAM_LZMA)
+ return ulzma(rom_start, dest);
+#endif
+}
+#endif
int stream_init(void)
{
-#if CONFIG_COMPRESSED_ROM_STREAM || CONFIG_PRECOMPRESSED_ROM_STREAM
+#if (UNCOMPRESSER)
unsigned char *dest;
unsigned long olen;
#endif
@@ -40,7 +72,7 @@ int stream_init(void)
(unsigned long)rom_start,
(unsigned long)rom_end);
-#if CONFIG_COMPRESSED_ROM_STREAM || CONFIG_PRECOMPRESSED_ROM_STREAM
+#if (UNCOMPRESSER)
dest = &_eheap; /* need a good address on RAM */
@@ -56,8 +88,13 @@ int stream_init(void)
}
#endif
+ /* ALL of those settings are too smart and also unsafe. Set the dest to 16 MB:
+ * known to be safe for LB for now, and mostly safe for all elf images we have tried.
+ * long term, this has got to be fixed.
+ */
+ dest = (unsigned char *) (16 * 1024 * 1024);
printk_debug("Uncompressing to RAM 0x%08lx ", dest);
- olen = unrv2b((uint8_t *) rom_start, (uint8_t *)dest );
+ olen = uncompress((uint8_t *) rom_start, (uint8_t *)dest );
printk_debug(" olen = 0x%08lx done.\n", olen);
rom_end = dest + olen - 1;
rom = dest;
diff --git a/targets/artecgroup/dbe61/Config.lb b/targets/artecgroup/dbe61/Config.lb
index b36693a3df..ae43f2ce96 100644
--- a/targets/artecgroup/dbe61/Config.lb
+++ b/targets/artecgroup/dbe61/Config.lb
@@ -3,7 +3,7 @@
target dbe61
mainboard artecgroup/dbe61
-option CONFIG_COMPRESSED_ROM_STREAM=0
+option CONFIG_COMPRESSED_ROM_STREAM_NRV2B=0
## ROM_SIZE is the total number of bytes allocated for LinuxBIOS use
## (normal AND fallback images and payloads).
diff --git a/targets/olpc/rev_a/Config.1M.lb b/targets/olpc/rev_a/Config.1M.lb
index bd5c214426..d3c748dedd 100644
--- a/targets/olpc/rev_a/Config.1M.lb
+++ b/targets/olpc/rev_a/Config.1M.lb
@@ -4,7 +4,7 @@ target rev_a_1M
mainboard olpc/rev_a
# Don't let LinuxBIOS compress the payload
-# option CONFIG_COMPRESSED_ROM_STREAM=0
+# option CONFIG_COMPRESSED_ROM_STREAM_NRV2B=0
#option CONFIG_PRECOMPRESSED_ROM_STREAM=1
# leave 64k for vsa
diff --git a/targets/olpc/rev_a/Config.SPI.lb b/targets/olpc/rev_a/Config.SPI.lb
index ecea6f4e89..b7d0199a38 100644
--- a/targets/olpc/rev_a/Config.SPI.lb
+++ b/targets/olpc/rev_a/Config.SPI.lb
@@ -4,8 +4,9 @@ target rev_a_1M
mainboard olpc/rev_a
# Don't let LinuxBIOS compress the payload
-# option CONFIG_COMPRESSED_ROM_STREAM=0
-#option CONFIG_PRECOMPRESSED_ROM_STREAM=1
+#option CONFIG_COMPRESSED_ROM_STREAM_NRV2B=0
+#option CONFIG_COMPRESSED_ROM_STREAM_LZMA=1
+#option CONFIG_PRECOMPRESSED_ROM_STREAM=0
# leave 64k for vsa and 64k for EC code
option ROM_SIZE=(1024*1024)-(64*1024)-(64*1024)
diff --git a/targets/olpc/rev_a/Config.lb b/targets/olpc/rev_a/Config.lb
index fa6441d86f..da46f84a42 100644
--- a/targets/olpc/rev_a/Config.lb
+++ b/targets/olpc/rev_a/Config.lb
@@ -4,7 +4,7 @@ target rev_a
mainboard olpc/rev_a
# leave 64k for vsa
-option CONFIG_COMPRESSED_ROM_STREAM=0
+option CONFIG_COMPRESSED_ROM_STREAM_NRV2B=0
option ROM_SIZE=512*1024-64*1024
option FALLBACK_SIZE=ROM_SIZE