There is no vmstate handling for SMBus, so no device sitting on SMBus
can have a state transfer that works reliably. So add it.
Signed-off-by: Corey Minyard <cminyard@mvista.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Michael S. Tsirkin <mst@redhat.com>
Cc: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
There were two different read functions, and with the removal of
the command passed in there is no functional difference. So remove
one of them. With that you don't need one of the states, so that
can be removed, too.
Signed-off-by: Corey Minyard <cminyard@mvista.com>
There were two different write functions and the SMBus code kept
track of the command.
Keeping track of the command wasn't useful, in fact it wasn't quite
correct for the eeprom_smbus code. And there is no need for two write
functions. Just have one write function and the first byte in the
buffer is the command.
Signed-off-by: Corey Minyard <cminyard@mvista.com>
The logic of handling quick SMBus commands was wrong. If you get a
finish event with no data, that's a quick command.
Document the quick command while we are at it.
Signed-off-by: Corey Minyard <cminyard@mvista.com>
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>
smbus.c and smbus.h had device side code, master side code, and
smbus.h has some smbus_eeprom.c definitions. Split them into
separate files.
Signed-off-by: Corey Minyard <cminyard@mvista.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
