b44: fix misalignment and space-saving in rx packet handling (significant throughput...

[openwrt.git] / target / linux / adm5120 / image / lzma-loader / src / decompress.c

diff --git a/target/linux/adm5120/image/lzma-loader/src/decompress.c b/target/linux/adm5120/image/lzma-loader/src/decompress.c
index 9e2a04c..de6c937 100644 (file)
--- a/target/linux/adm5120/image/lzma-loader/src/decompress.c
+++ b/target/linux/adm5120/image/lzma-loader/src/decompress.c
@@ -4,7 +4,8 @@
  * LZMA compressed kernel decompressor for ADM5120 boards
  *
  * Copyright (C) 2005 by Oleg I. Vdovikin <oleg@cs.msu.su>
- * Copyright (C) 2007 OpenWrt.org
+ * Copyright (C) 2007-2008 OpenWrt.org
+ * Copyright (C) 2007-2008 Gabor Juhos <juhosg@openwrt.org>
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -118,12 +119,13 @@ struct env_var {
 extern unsigned char workspace[];
 extern void board_init(void);
 
+static CLzmaDecoderState lzma_state;
+
 typedef void (*kernel_entry)(unsigned long reg_a0, unsigned long reg_a1,
        unsigned long reg_a2, unsigned long reg_a3);
 
-static int decompress_data(unsigned char *buffer, UInt32 bufferSize,
-       int lc, int lp, int pb, unsigned char *outStream, UInt32 outSize,
-       UInt32 *outSizeProcessed);
+static int decompress_data(CLzmaDecoderState *vs, unsigned char *outStream,
+                       UInt32 outSize);
 
 #ifdef CONFIG_PASS_KARGS
 #define ENVV(n,v)      {.name = (n), .value = (v)}
@@ -139,7 +141,7 @@ static void halt(void)
        for(;;);
 }
 
-#if LZMA_WRAPPER
+#if (LZMA_WRAPPER)
 extern unsigned char _lzma_data_start[];
 extern unsigned char _lzma_data_end[];
 
@@ -158,12 +160,12 @@ static void decompress_init(void)
        datalen = _lzma_data_end - _lzma_data_start;
 }
 
-static int decompress_data(unsigned char *buffer, UInt32 bufferSize,
-       int lc, int lp, int pb, unsigned char *outStream, UInt32 outSize,
-       UInt32 *outSizeProcessed)
+static int decompress_data(CLzmaDecoderState *vs, unsigned char *outStream,
+                       SizeT outSize)
 {
-       return LzmaDecode(buffer, bufferSize, lc, lp, pb, data, datalen,
-               outStream, outSize, outSizeProcessed);
+       SizeT ip, op;
+
+       return LzmaDecode(vs, data, datalen, &ip, outStream, outSize, &op);
 }
 #endif /* LZMA_WRAPPER */
 
@@ -181,7 +183,8 @@ static __inline__ unsigned char get_byte(void)
        return *(flash_base+flash_ofs++);
 }
 
-static int lzma_read_byte(void *object, unsigned char **buffer, UInt32 *bufferSize)
+static int lzma_read_byte(void *object, const unsigned char **buffer,
+                               SizeT *bufferSize)
 {
        unsigned long len;
 
@@ -263,12 +266,17 @@ static void decompress_init(void)
        flash_max = flash_ofs+klen;
 }
 
-static int decompress_data(unsigned char *buffer, UInt32 bufferSize,
-       int lc, int lp, int pb, unsigned char *outStream, UInt32 outSize,
-       UInt32 *outSizeProcessed)
+static int decompress_data(CLzmaDecoderState *vs, unsigned char *outStream,
+                       SizeT outSize)
 {
-       return LzmaDecode(buffer, bufferSize, lc, lp, pb, &lzma_callback,
-               outStream, outSize, outSizeProcessed);
+       SizeT op;
+
+#if 0
+       vs->Buffer = data;
+       vs->BufferLim = datalen;
+#endif
+
+       return LzmaDecode(vs, &lzma_callback, outStream, outSize, &op);
 }
 #endif /* !(LZMA_WRAPPER) */
 
@@ -278,44 +286,44 @@ void decompress_entry(unsigned long reg_a0, unsigned long reg_a1,
        unsigned long icache_size, unsigned long icache_lsize,
        unsigned long dcache_size, unsigned long dcache_lsize)
 {
+       unsigned char props[LZMA_PROPERTIES_SIZE];
        unsigned int i;  /* temp value */
-       unsigned int lc; /* literal context bits */
-       unsigned int lp; /* literal pos state bits */
-       unsigned int pb; /* pos state bits */
-       unsigned int osize; /* uncompressed size */
+       SizeT osize; /* uncompressed size */
        int res;
 
        board_init();
 
        printf("\n\nLZMA loader for " CONFIG_BOARD_NAME
-                       ", Copyright (C) 2007 OpenWrt.org\n\n");
+                       ", Copyright (C) 2007-2008 OpenWrt.org\n\n");
 
        decompress_init();
 
        /* lzma args */
-       i = get_byte();
-       lc = i % 9, i = i / 9;
-       lp = i % 5, pb = i / 5;
+       for (i = 0; i < LZMA_PROPERTIES_SIZE; i++)
+               props[i] = get_byte();
 
        /* skip rest of the LZMA coder property */
-       for (i = 0; i < 4; i++)
-               get_byte();
-
        /* read the lower half of uncompressed size in the header */
-       osize = ((unsigned int)get_byte()) +
-               ((unsigned int)get_byte() << 8) +
-               ((unsigned int)get_byte() << 16) +
-               ((unsigned int)get_byte() << 24);
+       osize = ((SizeT)get_byte()) +
+               ((SizeT)get_byte() << 8) +
+               ((SizeT)get_byte() << 16) +
+               ((SizeT)get_byte() << 24);
 
        /* skip rest of the header (upper half of uncompressed size) */
        for (i = 0; i < 4; i++)
                get_byte();
 
+       res = LzmaDecodeProperties(&lzma_state.Properties, props,
+                                       LZMA_PROPERTIES_SIZE);
+       if (res != LZMA_RESULT_OK) {
+               printf("Incorrect LZMA stream properties!\n");
+               halt();
+       }
+
        printf("decompressing kernel... ");
 
-       /* decompress kernel */
-       res = decompress_data(workspace, ~0, lc, lp, pb,
-               (unsigned char *)LOADADDR, osize, &i);
+       lzma_state.Probs = (CProb *)workspace;
+       res = decompress_data(&lzma_state, (unsigned char *)LOADADDR, osize);
 
        if (res != LZMA_RESULT_OK) {
                printf("failed, ");
@@ -323,9 +331,6 @@ void decompress_entry(unsigned long reg_a0, unsigned long reg_a1,
                case LZMA_RESULT_DATA_ERROR:
                        printf("data error!\n");
                        break;
-               case LZMA_RESULT_NOT_ENOUGH_MEM:
-                       printf("not enough memory!\n");
-                       break;
                default:
                        printf("unknown error %d!\n", res);
                }