From: Denis Osterland <Denis.Osterland@xxxxxxxxx>
This patch adds hab_get_status convenience function
and uses it in hab info command.
It returns -EIO if MMU is disabled and -ENXIO if no HAB device
is available.
Signed-off-by: Denis Osterland <Denis.Osterland@xxxxxxxxx>
---
v1 -> v2: use runtime if, as suggested by Andrey Smirnov,
add hab_get_status to have hab implementation
selection at a central place
commands/hab.c | 3 +++
include/hab.h | 15 +++++++++++++++
2 files changed, 18 insertions(+)
diff --git a/commands/hab.c b/commands/hab.c
index 0d7ee8e76..af51e73fc 100644
--- a/commands/hab.c
+++ b/commands/hab.c
@@ -72,6 +72,9 @@ static int do_hab(int argc, char *argv[])
else
printf("devel mode\n");
+ if (hab_get_status() == -EIO)
+ printf("Disable MMU to access HAB API!\n");
+
return 0;
}
diff --git a/include/hab.h b/include/hab.h
index 78c2b865b..7c2ffab5e 100644
--- a/include/hab.h
+++ b/include/hab.h
@@ -19,6 +19,7 @@
#define __HABV4_H
#include <errno.h>
+#include <mach/generic.h>
#ifdef CONFIG_HABV4
int imx28_hab_get_status(void);
@@ -43,6 +44,20 @@ static inline int imx25_hab_get_status(void)
}
#endif
+static inline int hab_get_status(void)
+{
+ if (IS_ENABLED(CONFIG_MMU))
+ return -EIO;
+ else if (cpu_is_mx6())
+ return imx6_hab_get_status();
+ else if (cpu_is_mx28())
+ return imx28_hab_get_status();
+ else if (cpu_is_mx25())
+ return imx25_hab_get_status();
+ else
+ return -ENXIO;
+}
+
#define SRK_HASH_SIZE 32
/* Force writing of key, even when a key is already written */
--
2.19.0
Diehl Connectivity Solutions GmbH
Geschäftsführung: Horst Leonberger
Sitz der Gesellschaft: Nürnberg - Registergericht: Amtsgericht
Nürnberg: HRB 32315
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