[PATCH] bootsource: export bootsource_to_string()

[Sascha Hauer]

On Fri, Dec 09, 2022 at 08:29:00AM +0100, Ahmad Fatoum wrote:
> bootsource_str which translates enum bootsource to a string is not
> exported to other parts of barebox. Define a new bootsource_to_string()
> that provides access. This can be useful for board code debugging
> prints, especially in PBL, where the $bootsource environment variable
> is not available.
> 
> Signed-off-by: Ahmad Fatoum <a.fatoum at pengutronix.de>
> ---
>  common/Makefile      |  2 +-
>  common/bootsource.c  | 14 +++++++++++---
>  include/bootsource.h |  2 ++
>  3 files changed, 14 insertions(+), 4 deletions(-)

Applied, thanks

Sascha

> 
> diff --git a/common/Makefile b/common/Makefile
> index 35f2120496ea..25f5653f906a 100644
> --- a/common/Makefile
> +++ b/common/Makefile
> @@ -11,7 +11,7 @@ obj-y				+= startup.o
>  obj-y				+= misc.o
>  obj-pbl-y			+= memsize.o
>  obj-y				+= resource.o
> -obj-y				+= bootsource.o
> +obj-pbl-y			+= bootsource.o
>  obj-$(CONFIG_ELF)		+= elf.o
>  obj-y				+= restart.o
>  obj-y				+= poweroff.o
> diff --git a/common/bootsource.c b/common/bootsource.c
> index 70bac945de5a..66bddf2dacf4 100644
> --- a/common/bootsource.c
> +++ b/common/bootsource.c
> @@ -10,7 +10,7 @@
>  #include <magicvar.h>
>  #include <init.h>
>  
> -static const char *bootsource_str[] = {
> +static const char *bootsource_str[BOOTSOURCE_MAX] = {
>  	[BOOTSOURCE_UNKNOWN] = "unknown",
>  	[BOOTSOURCE_NAND] = "nand",
>  	[BOOTSOURCE_NOR] = "nor",
> @@ -33,6 +33,14 @@ static enum bootsource bootsource = BOOTSOURCE_UNKNOWN;
>  static int bootsource_instance = BOOTSOURCE_INSTANCE_UNKNOWN;
>  const char *bootsource_alias_name = NULL;
>  
> +const char *bootsource_to_string(enum bootsource src)
> +{
> +	if (src >= ARRAY_SIZE(bootsource_str))
> +		return NULL;
> +
> +	return bootsource_str[src];
> +}
> +
>  const char *bootsource_get_alias_stem(enum bootsource src)
>  {
>  	switch (src) {
> @@ -107,12 +115,12 @@ void bootsource_set_alias_name(const char *name)
>  
>  void bootsource_set_raw(enum bootsource src, int instance)
>  {
> -	if (src >= ARRAY_SIZE(bootsource_str))
> +	if (src >= BOOTSOURCE_MAX)
>  		src = BOOTSOURCE_UNKNOWN;
>  
>  	bootsource = src;
>  
> -	setenv("bootsource", bootsource_str[src]);
> +	setenv("bootsource", bootsource_to_string(src));
>  
>  	bootsource_set_raw_instance(instance);
>  }
> diff --git a/include/bootsource.h b/include/bootsource.h
> index 9ca4fcc525b5..381776a85a4c 100644
> --- a/include/bootsource.h
> +++ b/include/bootsource.h
> @@ -20,6 +20,7 @@ enum bootsource {
>  	BOOTSOURCE_NET,
>  	BOOTSOURCE_CAN,
>  	BOOTSOURCE_JTAG,
> +	BOOTSOURCE_MAX,
>  };
>  
>  #define BOOTSOURCE_INSTANCE_UNKNOWN	-1
> @@ -28,6 +29,7 @@ enum bootsource bootsource_get(void);
>  int bootsource_get_instance(void);
>  void bootsource_set_alias_name(const char *name);
>  char *bootsource_get_alias_name(void);
> +const char *bootsource_to_string(enum bootsource src);
>  const char *bootsource_get_alias_stem(enum bootsource bs);
>  int bootsource_of_alias_xlate(enum bootsource bs, int instance);
>  
> -- 
> 2.30.2
> 
> 
> 

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