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>
diff --git a/common/console.c b/common/console.c
index 5453726..11c102a 100644
--- a/common/console.c
+++ b/common/console.c
@@ -109,7 +109,7 @@
case stderr:
/* Start new device */
if (dev->start) {
- error = dev->start();
+ error = dev->start(dev);
/* If it's not started dont use it */
if (error < 0)
break;
@@ -159,7 +159,7 @@
unsigned char ret;
/* This is never called with testcdev == NULL */
- ret = tstcdev->getc();
+ ret = tstcdev->getc(tstcdev);
tstcdev = NULL;
return ret;
}
@@ -173,7 +173,7 @@
for (i = 0; i < cd_count[file]; i++) {
dev = console_devices[file][i];
if (dev->tstc != NULL) {
- ret = dev->tstc();
+ ret = dev->tstc(dev);
if (ret > 0) {
tstcdev = dev;
disable_ctrlc(0);
@@ -194,7 +194,7 @@
for (i = 0; i < cd_count[file]; i++) {
dev = console_devices[file][i];
if (dev->putc != NULL)
- dev->putc(c);
+ dev->putc(dev, c);
}
}
@@ -206,7 +206,7 @@
for (i = 0; i < cd_count[file]; i++) {
dev = console_devices[file][i];
if (dev->puts != NULL)
- dev->puts(s);
+ dev->puts(dev, s);
}
}
@@ -222,22 +222,22 @@
#else
static inline int console_getc(int file)
{
- return stdio_devices[file]->getc();
+ return stdio_devices[file]->getc(stdio_devices[file]);
}
static inline int console_tstc(int file)
{
- return stdio_devices[file]->tstc();
+ return stdio_devices[file]->tstc(stdio_devices[file]);
}
static inline void console_putc(int file, const char c)
{
- stdio_devices[file]->putc(c);
+ stdio_devices[file]->putc(stdio_devices[file], c);
}
static inline void console_puts(int file, const char *s)
{
- stdio_devices[file]->puts(s);
+ stdio_devices[file]->puts(stdio_devices[file], s);
}
static inline void console_printdevs(int file)