From 7d8598f30e68aee6766bfc1272834d45f3bfa9b4 Mon Sep 17 00:00:00 2001 From: Jens Arnold Date: Wed, 29 Sep 2004 22:44:02 +0000 Subject: Writing to mmc does work now, but not always correct yet. It caused a corrupt file system once, so beware git-svn-id: svn://svn.rockbox.org/rockbox/trunk@5132 a1c6a512-1295-4272-9138-f99709370657 --- firmware/drivers/ata_mmc.c | 16 +++++++++++----- 1 file changed, 11 insertions(+), 5 deletions(-) diff --git a/firmware/drivers/ata_mmc.c b/firmware/drivers/ata_mmc.c index 0faf431836..159b007f64 100644 --- a/firmware/drivers/ata_mmc.c +++ b/firmware/drivers/ata_mmc.c @@ -242,18 +242,24 @@ static unsigned char poll_byte(int timeout) static unsigned char poll_busy(int timeout) { int i; - unsigned char data; + unsigned char data, dummy; while (!(SSR1 &SCI_TEND)); /* wait for end of transfer */ TDR1 = 0xFF; /* send do-nothing data in parallel */ - + + /* get data response */ + SSR1 = 0; /* start receiving */ + while (!(SSR1 & SCI_RDRF)); /* wait for data */ + data = RDR1; /* read byte */ + + /* wait until the card is ready again */ i = 0; do { SSR1 = 0; /* start receiving */ while (!(SSR1 & SCI_RDRF)); /* wait for data */ - data = RDR1; /* read byte */ - } while ((data == 0x00) && (++i < timeout)); - + dummy = RDR1; /* read byte */ + } while ((dummy != 0xFF) && (++i < timeout)); + return fliptable[(signed char)data]; } -- cgit v1.2.3