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[Qemu-devel] [PATCH] fdc: Fix floppy port I/O
From: |
Kevin Wolf |
Subject: |
[Qemu-devel] [PATCH] fdc: Fix floppy port I/O |
Date: |
Tue, 18 Oct 2011 16:50:12 +0200 |
The floppy device was broken by commit 212ec7ba (fdc: Convert to
isa_register_portio_list). While the old interface provided the port number
relative to the floppy drive's io_base, the new one provides the real port
number, so we need to apply a bitmask now to get the register number.
Signed-off-by: Kevin Wolf <address@hidden>
---
hw/fdc.c | 2 ++
1 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/hw/fdc.c b/hw/fdc.c
index 4b06e04..f8af2de 100644
--- a/hw/fdc.c
+++ b/hw/fdc.c
@@ -434,6 +434,7 @@ static uint32_t fdctrl_read (void *opaque, uint32_t reg)
FDCtrl *fdctrl = opaque;
uint32_t retval;
+ reg &= 7;
switch (reg) {
case FD_REG_SRA:
retval = fdctrl_read_statusA(fdctrl);
@@ -471,6 +472,7 @@ static void fdctrl_write (void *opaque, uint32_t reg,
uint32_t value)
FLOPPY_DPRINTF("write reg%d: 0x%02x\n", reg & 7, value);
+ reg &= 7;
switch (reg) {
case FD_REG_DOR:
fdctrl_write_dor(fdctrl, value);
--
1.7.6.4
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