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author | Michael Sparmann <theseven@rockbox.org> | 2010-03-13 20:27:21 +0000 |
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committer | Michael Sparmann <theseven@rockbox.org> | 2010-03-13 20:27:21 +0000 |
commit | 16587900dae7b2f07e59b93b8acaab8a7047c37e (patch) | |
tree | d5f92d1e4b0f5819ff3f026822df42eac9829a68 /firmware | |
parent | 4a6d160f7539caa50820c79f835b8de50df0de0b (diff) | |
download | rockbox-16587900dae7b2f07e59b93b8acaab8a7047c37e.tar.gz rockbox-16587900dae7b2f07e59b93b8acaab8a7047c37e.zip |
Implement fast VFL read API (as a dummy) for Nano2G
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@25147 a1c6a512-1295-4272-9138-f99709370657
Diffstat (limited to 'firmware')
-rw-r--r-- | firmware/target/arm/s5l8700/ipodnano2g/ftl-nano2g.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/firmware/target/arm/s5l8700/ipodnano2g/ftl-nano2g.c b/firmware/target/arm/s5l8700/ipodnano2g/ftl-nano2g.c index a188e986d6..56547fe3af 100644 --- a/firmware/target/arm/s5l8700/ipodnano2g/ftl-nano2g.c +++ b/firmware/target/arm/s5l8700/ipodnano2g/ftl-nano2g.c | |||
@@ -850,6 +850,35 @@ uint32_t ftl_vfl_read(uint32_t vpage, void* buffer, void* sparebuffer, | |||
850 | } | 850 | } |
851 | 851 | ||
852 | 852 | ||
853 | /* Multi-bank version of ftl_vfl_read, will read ftl_banks pages in parallel */ | ||
854 | uint32_t ftl_vfl_read_fast(uint32_t vpage, void* buffer, void* sparebuffer, | ||
855 | uint32_t checkempty, uint32_t remaponfail) | ||
856 | { | ||
857 | uint32_t i, rc = 0; | ||
858 | uint32_t ppb = (*ftl_nand_type).pagesperblock * ftl_banks; | ||
859 | uint32_t syshyperblocks = (*ftl_nand_type).blocks | ||
860 | - (*ftl_nand_type).userblocks - 0x17; | ||
861 | uint32_t abspage = vpage + ppb * syshyperblocks; | ||
862 | if (abspage + ftl_banks - 1 >= (*ftl_nand_type).blocks * ppb || abspage < ppb) | ||
863 | panicf("FTL: Trying to read out-of-bounds vPage %u", (unsigned)vpage); | ||
864 | //return 4; | ||
865 | |||
866 | for (i = 0; i < ftl_banks; i++) | ||
867 | { | ||
868 | void* databuf = (void*)0; | ||
869 | void* sparebuf = (void*)0; | ||
870 | if (buffer) databuf = (void*)((uint32_t)buffer + 0x800 * i); | ||
871 | if (sparebuffer) sparebuf = (void*)((uint32_t)sparebuffer + 0x40 * i); | ||
872 | uint32_t ret = ftl_vfl_read(vpage + i, databuf, sparebuf, checkempty, remaponfail); | ||
873 | if (ret & 1) rc |= 1 << (i << 2); | ||
874 | if (ret & 2) rc |= 2 << (i << 2); | ||
875 | if (ret & 0x10) rc |= 4 << (i << 2); | ||
876 | if (ret & 0x100) rc |= 8 << (i << 2); | ||
877 | } | ||
878 | return rc; | ||
879 | } | ||
880 | |||
881 | |||
853 | #ifndef FTL_READONLY | 882 | #ifndef FTL_READONLY |
854 | /* Writes the specified vPage, dealing with all kinds of trouble */ | 883 | /* Writes the specified vPage, dealing with all kinds of trouble */ |
855 | uint32_t ftl_vfl_write_single(uint32_t vpage, void* buffer, void* sparebuffer) | 884 | uint32_t ftl_vfl_write_single(uint32_t vpage, void* buffer, void* sparebuffer) |