9706e0162d
hw/i2c/bitbang_i2c: Handle NACKs from devices
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If the guest attempts to talk to a nonexistent device over i2c,
the i2c_start_transfer() function will return non-zero, indicating
that the bus is signalling a NACK. Similarly, if the i2c_send()
function returns nonzero then the target device returned a NACK.
Handle this possibility in the bitbang_i2c code, by returning
the state machine to the STOPPED state and returning the NACK
bit to the guest.
This bit of missing functionality was spotted by Coverity
(it noticed that we weren't checking the return value from
i2c_start_transfer()).
Signed-off-by: Peter Maydell <peter.maydell@linaro.org >
Message-id: 1477332749-27098-1-git-send-email-peter.maydell@linaro.org
2016-11-07 10:01:15 +00:00
00b2f75870
hw/i2c: QOM'ify bitbang_i2c.c
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Drop the old SysBus init function and use instance_init
Signed-off-by: xiaoqiang zhao <zxq_yx_007@163.com >
Message-id: 1465815255-21776-2-git-send-email-zxq_yx_007@163.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org >
Signed-off-by: Peter Maydell <peter.maydell@linaro.org >
2016-06-14 15:59:13 +01:00
0430891ce1
hw: Clean up includes
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Clean up includes so that osdep.h is included first and headers
which it implies are not included manually.
This commit was created with scripts/clean-includes.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org >
Message-id: 1453832250-766-38-git-send-email-peter.maydell@linaro.org
2016-01-29 15:07:25 +00:00
a5c828525e
i2c: Rename i2c_bus to I2CBus
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Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com >
Signed-off-by: Andreas Färber <afaerber@suse.de >
2014-02-14 16:22:31 +01:00
cc3c3b8a22
bitbang_i2c: QOM cast cleanup
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Signed-off-by: Andreas Färber <afaerber@suse.de >
2013-07-29 21:06:57 +02:00
125ee0ed9c
devices: Associate devices to their logical category
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The category will be used to sort the devices displayed in
the command line help.
Signed-off-by: Marcel Apfelbaum <marcel.a@redhat.com >
Message-id: 1375107465-25767-4-git-send-email-marcel.a@redhat.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com >
2013-07-29 10:37:09 -05:00
1437c94b26
hw/i*: pass owner to memory_region_init* functions
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Signed-off-by: Paolo Bonzini <pbonzini@redhat.com >
2013-07-04 17:42:48 +02:00
2c9b15cab1
memory: add owner argument to initialization functions
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Signed-off-by: Paolo Bonzini <pbonzini@redhat.com >
2013-07-04 17:42:44 +02:00
47b43a1f41
hw: move private headers to hw/ subdirectories.
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Many headers are used only in a single directory. These can be
kept in hw/.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com >
2013-04-08 18:13:16 +02:00
53ed424e09
hw: move I2C controllers to hw/i2c/, configure via default-configs/
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Signed-off-by: Paolo Bonzini <pbonzini@redhat.com >
2013-04-08 18:13:13 +02:00
