Commit Graph

7 Commits

Author SHA1 Message Date
Avi Kivity
cffac71b7c bitbang_i2c: avoid call to sysbus_init_mmio()
Instead of calling sysbus_init_mmio() with a null region,
create a dummy region using the memory API.

Signed-off-by: Avi Kivity <avi@redhat.com>
2011-11-24 18:32:00 +02:00
Anthony Liguori
7267c0947d Use glib memory allocation and free functions
qemu_malloc/qemu_free no longer exist after this commit.

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-08-20 23:01:08 -05:00
Matthew Fernandez
8e31bf388e Correct spelling of licensed
Correct typos of "licenced" to "licensed".

Reviewed-by: Stefan Weil <weil@mail.berlios.de>
Reviewed-by: Andreas F=E4rber <andreas.faerber@web.de>
Signed-off-by: Matthew Fernandez <matthew.fernandez@gmail.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-07-23 11:26:12 -05:00
Marcus Comstedt
2eb9f24182 bitbang_i2c: Fix spurious slave read after NACK
After NACKing a read operation, a raising SCL should not trigger a new
read from the slave.  Introduce a new state which just waits for a stop
or start condition after NACK.

Signed-off-by: Marcus Comstedt <marcus@mc.pp.se>
Signed-off-by: Andrzej Zaborowski <andrew.zaborowski@intel.com>
2011-05-28 16:20:43 +02:00
Paul Brook
3cd035d863 GPIO I2C rework
Reqrite bitbanging I2C implementation.  New code improves stop/start
condition handling, and gives more accurate input line level.

Introduce intermediate abstraction layer for I2C bitbanging that
is not connected via a GPIO port.

Signed-off-by: Paul Brook <paul@codesourcery.com>
2009-11-22 21:27:40 +00:00
Gerd Hoffmann
81a322d4a1 qdev: add return value to init() callbacks.
Sorry folks, but it has to be.  One more of these invasive qdev patches.

We have a serious design bug in the qdev interface:  device init
callbacks can't signal failure because the init() callback has no
return value.  This patch fixes it.

We have already one case in-tree where this is needed:
Try -device virtio-blk-pci (without drive= specified) and watch qemu
segfault.  This patch fixes it.

With usb+scsi being converted to qdev we'll get more devices where the
init callback can fail for various reasons.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-08-27 20:43:28 -05:00
Andrzej Zaborowski
3ead03bd0a Extract musicpal.c I2C bitbanging code and make it gpio aware
Signed-off-by: Benoit Canet <benoit.canet@gmail.com>
Signed-off-by: Andrzej Zaborowski <balrogg@gmail.com>
2009-08-23 15:38:50 +02:00