diff options
Diffstat (limited to 'src/stream/rom_stream.c')
| -rw-r--r-- | src/stream/rom_stream.c | 47 |
1 files changed, 42 insertions, 5 deletions
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; |