aboutsummaryrefslogtreecommitdiff
path: root/hw/i2c/core.c
AgeCommit message (Collapse)Author
2023-11-01migration: Use vmstate_register_any()Juan Quintela
This are the easiest cases, where we were already using VMSTATE_INSTANCE_ID_ANY. Reviewed-by: Stefan Berger <stefanb@linux.ibm.com> Signed-off-by: Juan Quintela <quintela@redhat.com> Message-ID: <20231020090731.28701-3-quintela@redhat.com>
2023-03-02hw/i2c: only schedule pending master when bus is idleKlaus Jensen
It is not given that the current master will release the bus after a transfer ends. Only schedule a pending master if the bus is idle. Fixes: 37fa5ca42623 ("hw/i2c: support multiple masters") Signed-off-by: Klaus Jensen <k.jensen@samsung.com> Acked-by: Corey Minyard <cminyard@mvista.com> Message-Id: <20221116084312.35808-2-its@irrelevant.dk> Signed-off-by: Cédric Le Goater <clg@kaod.org>
2022-06-30hw/i2c: add asynchronous sendKlaus Jensen
Add an asynchronous version of i2c_send() that requires the slave to explicitly acknowledge on the bus with i2c_ack(). The current master must use the new i2c_start_send_async() to indicate that it wants to do an asynchronous transfer. This allows the i2c core to check if the target slave supports this or not. This approach relies on adding a new enum i2c_event member, which is why a bunch of other devices needs changes in their event handling switches. Signed-off-by: Klaus Jensen <k.jensen@samsung.com> Message-Id: <20220601210831.67259-5-its@irrelevant.dk> Signed-off-by: Cédric Le Goater <clg@kaod.org> Message-Id: <20220630045133.32251-6-me@pjd.dev> Signed-off-by: Cédric Le Goater <clg@kaod.org>
2022-06-30hw/i2c: support multiple mastersKlaus Jensen
Allow slaves to master the bus by registering a bottom halve. If the bus is busy, the bottom half is queued up. When a slave has succesfully mastered the bus, the bottom half is scheduled. Signed-off-by: Klaus Jensen <k.jensen@samsung.com> [ clg : - fixed typos in commit log ] Message-Id: <20220601210831.67259-4-its@irrelevant.dk> Signed-off-by: Cédric Le Goater <clg@kaod.org> Message-Id: <20220630045133.32251-5-me@pjd.dev> Signed-off-by: Cédric Le Goater <clg@kaod.org>
2022-03-21Use g_new() & friends where that makes obvious senseMarkus Armbruster
g_new(T, n) is neater than g_malloc(sizeof(T) * n). It's also safer, for two reasons. One, it catches multiplication overflowing size_t. Two, it returns T * rather than void *, which lets the compiler catch more type errors. This commit only touches allocations with size arguments of the form sizeof(T). Patch created mechanically with: $ spatch --in-place --sp-file scripts/coccinelle/use-g_new-etc.cocci \ --macro-file scripts/cocci-macro-file.h FILES... Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Cédric Le Goater <clg@kaod.org> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Acked-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Message-Id: <20220315144156.1595462-4-armbru@redhat.com> Reviewed-by: Pavel Dovgalyuk <Pavel.Dovgalyuk@ispras.ru>
2021-09-30qbus: Rename qbus_create() to qbus_new()Peter Maydell
Rename the "allocate and return" qbus creation function to qbus_new(), to bring it into line with our _init vs _new convention. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Corey Minyard <cminyard@mvista.com> Message-id: 20210923121153.23754-6-peter.maydell@linaro.org
2021-07-08hw/i2c: Introduce i2c_start_recv() and i2c_start_send()Philippe Mathieu-Daudé
To ease reviewing code using the I2C bus API, introduce the i2c_start_recv() and i2c_start_send() helpers which don't take the confusing 'is_recv' boolean argument. Use these new helpers in the SMBus / AUX bus models. Suggested-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Corey Minyard <cminyard@mvista.com>
2021-07-08hw/i2c: Extract i2c_do_start_transfer() from i2c_start_transfer()Philippe Mathieu-Daudé
To allow further simplications, extract i2c_do_start_transfer() from i2c_start_transfer(). This is mostly the same function, but the former is static and takes an enum argument. Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Corey Minyard <cminyard@mvista.com>
2021-07-08hw/i2c: Make i2c_start_transfer() direction argument a booleanBALATON Zoltan
Make the argument representing the direction of the transfer a boolean type. Rename the boolean argument as 'is_recv' to match i2c_recv_send(). Document the function prototype. Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu> Message-Id: <20200621145235.9E241745712@zero.eik.bme.hu> [PMD: Split patch, added docstring] Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Acked-by: Corey Minyard <cminyard@mvista.com> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Corey Minyard <cminyard@mvista.com>
2021-07-08hw/i2c: Rename i2c_set_slave_address() -> i2c_slave_set_address()Philippe Mathieu-Daudé
Other functions from I2C slave API are named "i2c_slave_XXX()". Follow that pattern with set_address(). Add docstring along. No logical change. Patch created mechanically using: $ sed -i s/i2c_set_slave_address/i2c_slave_set_address/ \ $(git grep -l i2c_set_slave_address) Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Acked-by: Corey Minyard <cminyard@mvista.com> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Corey Minyard <cminyard@mvista.com>
2021-07-08hw/i2c: Remove confusing i2c_send_recv()Philippe Mathieu-Daudé
We replaced all the i2c_send_recv() calls by the clearer i2c_recv() and i2c_send(), so we can remove this confusing API. Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Acked-by: Corey Minyard <cminyard@mvista.com> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Corey Minyard <cminyard@mvista.com>
2021-04-15hw/i2c: move search to i2c_scan_bus methodPatrick Venture
Moves the search for matching devices on an i2c bus into a separate method. This allows for an object that owns an I2CBus can avoid duplicating this method. Tested: A BMC firmware was booted to userspace and i2c devices were detected. Signed-off-by: Patrick Venture <venture@google.com> Reviewed-by: Hao Wu <wuhaotsh@google.com> Message-Id: <20210412194522.664594-4-venture@google.com> Signed-off-by: Corey Minyard <cminyard@mvista.com>
2021-04-15hw/i2c: add match method for device searchPatrick Venture
At the start of an i2c transaction, the i2c bus searches its list of children to identify which devices correspond to the address (or broadcast). Now the I2CSlave device has a method "match" that encapsulates the lookup behavior. This allows the behavior to be changed to support devices, such as i2c muxes. Tested: A BMC firmware was booted to userspace and i2c devices were detected. Signed-off-by: Patrick Venture <venture@google.com> Reviewed-by: Hao Wu <wuhaotsh@google.com> Message-Id: <20210412194522.664594-3-venture@google.com> Signed-off-by: Corey Minyard <cminyard@mvista.com>
2020-07-16hw/i2c: Rename i2c_create_slave() as i2c_slave_create_simple()Philippe Mathieu-Daudé
We use "create_simple" names for functions that allocate, initialize, configure and realize device objects: pci_create_simple(), isa_create_simple(), usb_create_simple(). For consistency, rename i2c_create_slave() as i2c_slave_create_simple(). Since we have to update all the callers, also let it return a I2CSlave object. Suggested-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Corey Minyard <cminyard@mvista.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-Id: <20200705224154.16917-5-f4bug@amsat.org> Signed-off-by: Corey Minyard <cminyard@mvista.com>
2020-07-16hw/i2c: Rename i2c_realize_and_unref() as i2c_slave_realize_and_unref()Philippe Mathieu-Daudé
The other i2c functions are called i2c_slave_FOO(). Rename as i2c_slave_realize_and_unref() to be consistent. Suggested-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Corey Minyard <cminyard@mvista.com> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-Id: <20200705224154.16917-4-f4bug@amsat.org> Signed-off-by: Corey Minyard <cminyard@mvista.com>
2020-07-16hw/i2c: Rename i2c_try_create_slave() as i2c_slave_new()Philippe Mathieu-Daudé
We use "new" names for functions that allocate and initialize device objects: pci_new(), isa_new(), usb_new(). Let's call this one i2c_slave_new(). Since we have to update all the callers, also let it return a I2CSlave object. Suggested-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-Id: <20200705224154.16917-3-f4bug@amsat.org> Signed-off-by: Corey Minyard <cminyard@mvista.com>
2020-06-26hw/i2c/core: Add i2c_try_create_slave() and i2c_realize_and_unref()Philippe Mathieu-Daudé
Extract i2c_try_create_slave() and i2c_realize_and_unref() from i2c_create_slave(). We can now set properties on a I2CSlave before it is realized. This is in line with the recent qdev/QOM changes merged in commit 6675a653d2e. Reviewed-by: Corey Minyard <cminyard@mvista.com> Reviewed-by: Cédric Le Goater <clg@kaod.org> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Markus Armbruster <armbru@redhat.com> Tested-by: Cédric Le Goater <clg@kaod.org> Message-id: 20200623072723.6324-2-f4bug@amsat.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-06-15qdev: Convert uses of qdev_create() with CoccinelleMarkus Armbruster
This is the transformation explained in the commit before previous. Takes care of just one pattern that needs conversion. More to come in this series. Coccinelle script: @ depends on !(file in "hw/arm/highbank.c")@ expression bus, type_name, dev, expr; @@ - dev = qdev_create(bus, type_name); + dev = qdev_new(type_name); ... when != dev = expr - qdev_init_nofail(dev); + qdev_realize_and_unref(dev, bus, &error_fatal); @@ expression bus, type_name, dev, expr; identifier DOWN; @@ - dev = DOWN(qdev_create(bus, type_name)); + dev = DOWN(qdev_new(type_name)); ... when != dev = expr - qdev_init_nofail(DEVICE(dev)); + qdev_realize_and_unref(DEVICE(dev), bus, &error_fatal); @@ expression bus, type_name, expr; identifier dev; @@ - DeviceState *dev = qdev_create(bus, type_name); + DeviceState *dev = qdev_new(type_name); ... when != dev = expr - qdev_init_nofail(dev); + qdev_realize_and_unref(dev, bus, &error_fatal); @@ expression bus, type_name, dev, expr, errp; symbol true; @@ - dev = qdev_create(bus, type_name); + dev = qdev_new(type_name); ... when != dev = expr - object_property_set_bool(OBJECT(dev), true, "realized", errp); + qdev_realize_and_unref(dev, bus, errp); @@ expression bus, type_name, expr, errp; identifier dev; symbol true; @@ - DeviceState *dev = qdev_create(bus, type_name); + DeviceState *dev = qdev_new(type_name); ... when != dev = expr - object_property_set_bool(OBJECT(dev), true, "realized", errp); + qdev_realize_and_unref(dev, bus, errp); The first rule exempts hw/arm/highbank.c, because it matches along two control flow paths there, with different @type_name. Covered by the next commit's manual conversions. Missing #include "qapi/error.h" added manually. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Message-Id: <20200610053247.1583243-10-armbru@redhat.com> [Conflicts in hw/misc/empty_slot.c and hw/sparc/leon3.c resolved]
2020-01-24qdev: set properties with device_class_set_props()Marc-André Lureau
The following patch will need to handle properties registration during class_init time. Let's use a device_class_set_props() setter. spatch --macro-file scripts/cocci-macro-file.h --sp-file ./scripts/coccinelle/qdev-set-props.cocci --keep-comments --in-place --dir . @@ typedef DeviceClass; DeviceClass *d; expression val; @@ - d->props = val + device_class_set_props(d, val) Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-Id: <20200110153039.1379601-20-marcandre.lureau@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-01-20migration: Define VMSTATE_INSTANCE_ID_ANYPeter Xu
Define the new macro VMSTATE_INSTANCE_ID_ANY for callers who wants to auto-generate the vmstate instance ID. Previously it was hard coded as -1 instead of this macro. It helps to change this default value in the follow up patches. No functional change. Signed-off-by: Peter Xu <peterx@redhat.com> Reviewed-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
2019-08-16Include hw/qdev-properties.h lessMarkus Armbruster
In my "build everything" tree, changing hw/qdev-properties.h triggers a recompile of some 2700 out of 6600 objects (not counting tests and objects that don't depend on qemu/osdep.h). Many places including hw/qdev-properties.h (directly or via hw/qdev.h) actually need only hw/qdev-core.h. Include hw/qdev-core.h there instead. hw/qdev.h is actually pointless: all it does is include hw/qdev-core.h and hw/qdev-properties.h, which in turn includes hw/qdev-core.h. Replace the remaining uses of hw/qdev.h by hw/qdev-properties.h. While there, delete a few superfluous inclusions of hw/qdev-core.h. Touching hw/qdev-properties.h now recompiles some 1200 objects. Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: "Daniel P. Berrangé" <berrange@redhat.com> Cc: Eduardo Habkost <ehabkost@redhat.com> Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eduardo Habkost <ehabkost@redhat.com> Message-Id: <20190812052359.30071-22-armbru@redhat.com>
2019-08-16Include migration/vmstate.h lessMarkus Armbruster
In my "build everything" tree, changing migration/vmstate.h triggers a recompile of some 2700 out of 6600 objects (not counting tests and objects that don't depend on qemu/osdep.h). hw/hw.h supposedly includes it for convenience. Several other headers include it just to get VMStateDescription. The previous commit made that unnecessary. Include migration/vmstate.h only where it's still needed. Touching it now recompiles only some 1600 objects. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-Id: <20190812052359.30071-16-armbru@redhat.com> Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
2019-06-12Include qemu/module.h where needed, drop it from qemu-common.hMarkus Armbruster
Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20190523143508.25387-4-armbru@redhat.com> [Rebased with conflicts resolved automatically, except for hw/usb/dev-hub.c hw/misc/exynos4210_rng.c hw/misc/bcm2835_rng.c hw/misc/aspeed_scu.c hw/display/virtio-vga.c hw/arm/stm32f205_soc.c; ui/cocoa.m fixed up]
2019-02-27i2c: have I2C receive operation return uint8_tCorey Minyard
It is never supposed to fail and cannot return an error, so just have it return the proper type. Have it return 0xff on nothing available, since that's what would happen on a real bus. Signed-off-by: Corey Minyard <cminyard@mvista.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
2018-06-08hw/i2c: Add trace eventsPhilippe Mathieu-Daudé
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-id: 20180606191801.6331-1-f4bug@amsat.org Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-06-01hw/i2c: Use DeviceClass::realize instead of I2CSlaveClass::initPhilippe Mathieu-Daudé
I2CSlaveClass::init is no more used, remove it. Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-Id: <20180419212727.26095-3-f4bug@amsat.org> Reviewed-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20180528144509.15812-3-armbru@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-03-01i2c: Move the bus class to i2c.hCorey Minyard
Some devices need access to it. Signed-off-by: Corey Minyard <cminyard@mvista.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Message-id: 20180227104903.21353-3-linus.walleij@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-03-01i2c: Fix some brace style issuesCorey Minyard
Signed-off-by: Corey Minyard <cminyard@mvista.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Message-id: 20180227104903.21353-2-linus.walleij@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2017-09-27migration: pre_save return intDr. David Alan Gilbert
Modify the pre_save method on VMStateDescription to return an int rather than void so that it potentially can fail. Changed zillions of devices to make them return 0; the only case I've made it return non-0 is hw/intc/s390_flic_kvm.c that already had an error_report/return case. Note: If you add an error exit in your pre_save you must emit an error_report to say why. Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Message-Id: <20170925112917.21340-2-dgilbert@redhat.com> Reviewed-by: Peter Xu <peterx@redhat.com> Reviewed-by: Cornelia Huck <cohuck@redhat.com> Reviewed-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2017-01-09i2c: Allow I2C devices to NAK start eventsCorey Minyard
Add a return value to the event handler. Some I2C devices will NAK if they have no data, so allow them to do this. This required the following changes: Go through all the event handlers and change them to return int and return 0. Modify i2c_start_transfer to terminate the transaction on a NAK. Modify smbus handing to not assert if a NAK occurs on a second operation, and terminate the transaction and return -1 instead. Add some information on semantics to I2CSlaveClass. Signed-off-by: Corey Minyard <cminyard@mvista.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-12-27hw/i2c: Add a NULL check for i2c slave init callbacksAlastair D'Silva
Add a NULL check for i2c slave init callbacks, so that we no longer need to implement empty init functions. Signed-off-by: Alastair D'Silva <alastair@d-silva.org> Message-id: 20161202054617.6749-4-alastair@au1.ibm.com Reviewed-by: Peter Maydell <peter.maydell@linaro.org> [PMM: squashed in later tweak from Alistair to if() phrasing] Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-10-24i2c: Add asserts for second smbus i2c_start_transfer()Corey Minyard
Some SMBus operations restart the transfer to convert from write to read mode without an intervening i2c_end_transfer(). The second call cannot fail, so the return code is unchecked, but this causes Coverity to complain. So add some asserts and documentation about this. Signed-off-by: Corey Minyard <cminyard@mvista.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-10-24i2c: Fix SMBus read transactions to avoid double eventsCorey Minyard
Change 2293c27faddf (i2c: implement broadcast write) added broadcast capability to the I2C bus, but it broke SMBus read transactions. An SMBus read transaction does two i2c_start_transaction() calls without an intervening i2c_end_transfer() call. This will result in i2c_start_transfer() adding the same device to the current_devs list twice, and then the ->event() for the same device gets called twice in the second call to i2c_start_transfer(), resulting in the smbus code getting confused. Note that this happens even with pure I2C devices when simulating SMBus over I2C. This fix only scans the bus if the current set of devices is empty. This means that the current set of devices stays fixed until i2c_end_transfer() is called, which is really what you want. This also deletes the empty check from the top of i2c_end_transfer(). It's unnecessary, and it prevents the broadcast variable from being set to false at the end of the transaction if no devices were on the bus. Cc: KONRAD Frederic <fred.konrad@greensocs.com> Cc: Alistair Francis <alistair.francis@xilinx.com> Cc: Peter Crosthwaite <crosthwaite.peter@gmail.com> Cc: Kwon <hyun.kwon@xilinx.com> Cc: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Corey Minyard <cminyard@mvista.com> Reviewed-by: KONRAD Frederic <fred.konrad@greensocs.com> Tested-by: KONRAD Frederic <fred.konrad@greensocs.com> Message-id: 1470153614-6657-1-git-send-email-minyard@acm.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-08-03i2c: fix migration regression introduced by broadcast supportIgor Mammedov
QEMU fails migration with following error: qemu-system-x86_64: Missing section footer for i2c_bus qemu-system-x86_64: load of migration failed: Invalid argument when migrating from: qemu-system-x86_64-v2.6.0 -m 256M rhel72.img -M pc-i440fx-2.6 to qemu-system-x86_64-v2.7.0-rc0 -m 256M rhel72.img -M pc-i440fx-2.6 Regression is added by commit 2293c27f (i2c: implement broadcast write) Fix it by dropping 'broadcast' VMState introduced by 2293c27f and reuse broadcast 0x00 address as broadcast flag in bus->saved_address. Then if there were ongoing broadcast at migration time, set bus->saved_address to it and at i2c_slave_post_load() time check for it instead of transfering and using 'broadcast' VMState. As result of reusing existing saved_address VMState, no compat glue will be needed to keep forward/backward compatiblity. which makes fix much less intrusive. Signed-off-by: Igor Mammedov <imammedo@redhat.com> Message-Id: <1469623198-177227-1-git-send-email-imammedo@redhat.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-06-14i2c: Factor our send() and recv() common logicPeter Crosthwaite
Most of the control flow logic between send and recv (error checking etc) is the same. Factor this out into a common send_recv() API. This is then usable by clients, where the control logic for send and receive differs only by a boolean. E.g. if (send) i2c_send(...): else i2c_recv(...); becomes: i2c_send_recv(... , send); Signed-off-by: Peter Crosthwaite <crosthwaite.peter@gmail.com> Reviewed-by: Alistair Francis <alistair.francis@xilinx.com> Signed-off-by: KONRAD Frederic <fred.konrad@greensocs.com> Message-id: 1465833014-21982-4-git-send-email-fred.konrad@greensocs.com Changes from FK: * Rebased on master. * Rebased on my i2c broadcast patch. Signed-off-by: KONRAD Frederic <fred.konrad@greensocs.com> Reviewed-by: Alistair Francis <alistair.francis@xilinx.com> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-06-14i2c: implement broadcast writeKONRAD Frederic
This does a write to every slaves when the I2C bus get a write to address 0. Signed-off-by: KONRAD Frederic <fred.konrad@greensocs.com> Reviewed-by: Alistair Francis <alistair.francis@xilinx.com> Reviewed-by: Peter Crosthwaite <crosthwaite.peter@gmail.com> Tested-By: Hyun Kwon <hyun.kwon@xilinx.com> Message-id: 1465833014-21982-3-git-send-email-fred.konrad@greensocs.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-06-14i2cbus: remove unused dev fieldKONRAD Frederic
The dev field in i2cbus is not used. So just drop it. Signed-off-by: KONRAD Frederic <fred.konrad@greensocs.com> Reviewed-by: Alistair Francis <alistair.francis@xilinx.com> Reviewed-by: Peter Crosthwaite <crosthwaite.peter@gmail.com> Tested-By: Hyun Kwon <hyun.kwon@xilinx.com> Message-id: 1465833014-21982-2-git-send-email-fred.konrad@greensocs.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-01-29hw: Clean up includesPeter Maydell
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
2014-05-14savevm: Remove all the unneeded version_minimum_id_old (rest)Juan Quintela
After previous Peter patch, they are redundant. This way we don't assign them except when needed. Once there, there were lots of case where the ".fields" indentation was wrong: .fields = (VMStateField []) { and .fields = (VMStateField []) { Change all the combinations to: .fields = (VMStateField[]){ The biggest problem (appart from aesthetics) was that checkpatch complained when we copy&pasted the code from one place to another. Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
2014-02-14i2c: Rename i2c_bus to I2CBusAndreas Färber
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-07-29devices: Associate devices to their logical categoryMarcel Apfelbaum
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>
2013-06-07qdev: Drop FROM_QBUS() macroAndreas Färber
Use QOM cast macros I2C_BUS(), SSI_BUS(), PCI_BUS() instead. Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-04-08hw: move target-independent files to subdirectoriesPaolo Bonzini
This patch tackles all files that are compiled once, moving them to subdirectories of hw/. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
generated by cgit v1.2.3 (git 2.26.2) at 2025-03-15 06:33:45 +0000