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IOMUX: Split out iomux_match_device() helper 

Deduplicate the code used in a few places by splitting out a common helper.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
This commit is contained in:
Andy Shevchenko 2021-02-11 17:09:41 +02:00 committed by Tom Rini
parent 658d6c5836
commit b672c1619b
3 changed files with 18 additions and 17 deletions
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7
common/console.c
View File

@ -252,15 +252,14 @@ static void console_devices_set(int file, struct stdio_dev *dev)
*/
static bool console_needs_start_stop(int file, struct stdio_dev *sdev)
{
int i, j;
int i;
for (i = 0; i < ARRAY_SIZE(cd_count); i++) {
if (i == file)
continue;
for (j = 0; j < cd_count[i]; j++)
if (console_devices[i][j] == sdev)
return false;
if (iomux_match_device(console_devices[i], cd_count[i], sdev) >= 0)
return false;
}
return true;
}

27
common/iomux.c
View File

@ -22,11 +22,21 @@ void iomux_printdevs(const int console)
printf("\n");
}
int iomux_match_device(struct stdio_dev **set, const int n, struct stdio_dev *sdev)
{
int i;
for (i = 0; i < n; i++)
if (sdev == set[i])
return i;
return -ENOENT;
}
/* This tries to preserve the old list if an error occurs. */
int iomux_doenv(const int console, const char *arg)
{
char *console_args, *temp, **start;
int i, j, k, io_flag, cs_idx, repeat;
int i, j, io_flag, cs_idx, repeat;
struct stdio_dev **cons_set, **old_set;
struct stdio_dev *dev;
@ -96,14 +106,8 @@ int iomux_doenv(const int console, const char *arg)
/*
* Prevent multiple entries for a device.
*/
repeat = 0;
for (k = 0; k < cs_idx; k++) {
if (dev == cons_set[k]) {
repeat++;
break;
}
}
if (repeat)
repeat = iomux_match_device(cons_set, cs_idx, dev);
if (repeat >= 0)
continue;
/*
* Try assigning the specified device.
@ -129,10 +133,7 @@ int iomux_doenv(const int console, const char *arg)
/* Stop dropped consoles */
for (i = 0; i < repeat; i++) {
for (j = 0; j < cs_idx; j++) {
if (old_set[i] == cons_set[j])
break;
}
j = iomux_match_device(cons_set, cs_idx, old_set[i]);
if (j == cs_idx)
console_stop(console, old_set[i]);
}

1
include/iomux.h
View File

@ -24,6 +24,7 @@ extern struct stdio_dev **console_devices[MAX_FILES];
*/
extern int cd_count[MAX_FILES];
int iomux_match_device(struct stdio_dev **, const int, struct stdio_dev *);
int iomux_doenv(const int, const char *);
void iomux_printdevs(const int);