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| author | Amaury Pouly <pamaury@rockbox.org> | 2010-04-22 08:31:02 +0000 |
|---|---|---|
| committer | Amaury Pouly <pamaury@rockbox.org> | 2010-04-22 08:31:02 +0000 |
| commit | acd09d33349b9fa6721d9a15dd1e4a4cb6ac9842 (patch) | |
| tree | 4c699a45445e7fbea329b0ad5ff16e7528bedc65 | |
| parent | 847a0fd56c4e98c58ddabb30b1d36c11c8b0536c (diff) | |
| download | rockbox-acd09d33349b9fa6721d9a15dd1e4a4cb6ac9842.tar.gz rockbox-acd09d33349b9fa6721d9a15dd1e4a4cb6ac9842.zip | |
ata-sd-pp: reduce size of the buffer used to switch bank, no functional change intended.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@25696 a1c6a512-1295-4272-9138-f99709370657
| -rw-r--r-- | firmware/target/arm/ata-sd-pp.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/firmware/target/arm/ata-sd-pp.c b/firmware/target/arm/ata-sd-pp.c index fafc5f20d9..7929449a23 100644 --- a/firmware/target/arm/ata-sd-pp.c +++ b/firmware/target/arm/ata-sd-pp.c @@ -546,11 +546,11 @@ static inline void copy_write_sectors(const unsigned char** buf) static int sd_select_bank(unsigned char bank) { - unsigned char card_data[512]; + unsigned char card_data[FIFO_LEN*2];// FIFO_LEN words=FIFO_LEN*2 bytes const unsigned char* write_buf; int i, ret; - memset(card_data, 0, 512); + memset(card_data, 0, sizeof card_data); ret = sd_wait_for_state(SD_TRAN, EC_TRAN_SEL_BANK); if (ret < 0) @@ -569,13 +569,15 @@ static int sd_select_bank(unsigned char bank) card_data[0] = bank; /* Write the card data */ - write_buf = card_data; for (i = 0; i < SD_BLOCK_SIZE/2; i += FIFO_LEN) { + write_buf = card_data; /* Wait for the FIFO to empty */ if (sd_poll_status(STAT_XMIT_FIFO_EMPTY, 10000)) { copy_write_sectors(&write_buf); /* Copy one chunk of 16 words */ + /* clear buffer: only the first chunk contains interesting data (bank), the remaining is zero filling */ + memset(card_data, 0, sizeof card_data); continue; } |