• Simon Glass's avatar
    stdio: Pass device pointer to stdio methods · 709ea543
    Simon Glass authored
    At present stdio device functions do not get any clue as to which stdio
    device is being acted on. Some implementations go to great lengths to work
    around this, such as defining a whole separate set of functions for each
    possible device.
    
    For driver model we need to associate a stdio_dev with a device. It doesn't
    seem possible to continue with this work-around approach.
    
    Instead, add a stdio_dev pointer to each of the stdio member functions.
    
    Note: The serial drivers have the same problem, but it is not strictly
    necessary to fix that to get driver model running. Also, if we convert
    serial over to driver model the problem will go away.
    
    Code size increases by 244 bytes for Thumb2 and 428 for PowerPC.
    
    22: stdio: Pass device pointer to stdio methods
           arm: (for 2/2 boards)  all +244.0  bss -4.0  text +248.0
       powerpc: (for 1/1 boards)  all +428.0  text +428.0
    Signed-off-by: 's avatarSimon Glass <sjg@chromium.org>
    Acked-by: 's avatarMarek Vasut <marex@denx.de>
    Reviewed-by: 's avatarMarek Vasut <marex@denx.de>
    709ea543
cmd_log.c 6.84 KB