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| author | Simon Glass <sjg@chromium.org> | 2014-07-23 06:54:59 -0600 |
|---|---|---|
| committer | Simon Glass <sjg@chromium.org> | 2014-07-23 14:07:23 +0100 |
| commit | 709ea543b92489e7729d2d7ddd6c9f451e52158c (patch) | |
| tree | c3ae9c03a7d031e510bab2cd3fa093e1f126c5ad /include/common.h | |
| parent | 91d0be1dd845913ba276e041dc11d1297390de11 (diff) | |
| download | blackbird-obmc-uboot-709ea543b92489e7729d2d7ddd6c9f451e52158c.tar.gz blackbird-obmc-uboot-709ea543b92489e7729d2d7ddd6c9f451e52158c.zip | |
stdio: Pass device pointer to stdio methods
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: Simon Glass <sjg@chromium.org>
Acked-by: Marek Vasut <marex@denx.de>
Reviewed-by: Marek Vasut <marex@denx.de>
Diffstat (limited to 'include/common.h')
| -rw-r--r-- | include/common.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/include/common.h b/include/common.h index 82c0a5a9a6..a75fc25c5f 100644 --- a/include/common.h +++ b/include/common.h @@ -639,6 +639,11 @@ void serial_puts (const char *); int serial_getc (void); int serial_tstc (void); +/* These versions take a stdio_dev pointer */ +struct stdio_dev; +int serial_stub_getc(struct stdio_dev *sdev); +int serial_stub_tstc(struct stdio_dev *sdev); + void _serial_setbrg (const int); void _serial_putc (const char, const int); void _serial_putc_raw(const char, const int); |
