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author | Marc Kleine-Budde <mkl@pengutronix.de> | 2013-04-03 10:12:13 +0200 |
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committer | Sascha Hauer <s.hauer@pengutronix.de> | 2013-04-04 10:54:27 +0200 |
commit | 5d8240619c62dee029eb3976d597175fe8dcefc3 (patch) | |
tree | 9638620d432db7377ed9ba616cc4f1c369dba9c4 /common/bootsource.c | |
parent | 54c3870f5426bab88f2f4ae456a9c88b996969ac (diff) | |
download | barebox-5d8240619c62dee029eb3976d597175fe8dcefc3.tar.gz barebox-5d8240619c62dee029eb3976d597175fe8dcefc3.tar.xz |
bootsource: add support for bootsource instance information
Add a C interface to set and get the bootsource instance:
int bootsource_get_instance(void);
void bootsource_set_instance(int instance);
Also export the shell variable "bootsource_instance".
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'common/bootsource.c')
-rw-r--r-- | common/bootsource.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/common/bootsource.c b/common/bootsource.c index 5f1d40c1d8..7367215a5f 100644 --- a/common/bootsource.c +++ b/common/bootsource.c @@ -34,6 +34,7 @@ static const char *bootsource_str[] = { }; static enum bootsource bootsource = BOOTSOURCE_UNKNOWN; +static int bootsource_instance = BOOTSOURCE_INSTANCE_UNKNOWN; void bootsource_set(enum bootsource src) { @@ -45,6 +46,20 @@ void bootsource_set(enum bootsource src) setenv("bootsource", bootsource_str[src]); } +void bootsource_set_instance(int instance) +{ + char buf[32]; + + bootsource_instance = instance; + + if (instance < 0) + sprintf(buf, "unknown"); + else + snprintf(buf, sizeof(buf), "%d", instance); + + setenv("bootsource_instance", buf); +} + enum bootsource bootsource_get(void) { return bootsource; @@ -52,10 +67,19 @@ enum bootsource bootsource_get(void) BAREBOX_MAGICVAR(bootsource, "The source barebox has been booted from"); +int bootsource_get_instance(void) +{ + return bootsource_instance; +} + +BAREBOX_MAGICVAR(bootsource_instance, "The instance of the source barebox has been booted from"); + static int bootsource_init(void) { bootsource_set(bootsource); + bootsource_set_instance(bootsource_instance); export("bootsource"); + export("bootsource_instance"); return 0; } |