From: Daniel Schultz <d.schultz@phytec.de>
To: barebox@lists.infradead.org
Subject: [PATCH v2 5/6] common: state: Add function to read state MAC
Date: Thu, 2 Nov 2017 13:42:44 +0100 [thread overview]
Message-ID: <1509626565-3722-5-git-send-email-d.schultz@phytec.de> (raw)
In-Reply-To: <1509626565-3722-1-git-send-email-d.schultz@phytec.de>
This API function allows to receive a copy of a MAC address from
variables in a state.
Signed-off-by: Daniel Schultz <d.schultz@phytec.de>
---
Changes:
v2: New patch
common/state/state.c | 23 +++++++++++++++++++++++
include/state.h | 2 ++
2 files changed, 25 insertions(+)
diff --git a/common/state/state.c b/common/state/state.c
index 266d211..063e03e 100644
--- a/common/state/state.c
+++ b/common/state/state.c
@@ -693,6 +693,29 @@ int state_get_name(const struct state *state, char const **name)
return 0;
}
+int state_read_mac(struct state *state, const char *name, u8 *buf)
+{
+ struct state_variable *svar;
+ struct state_mac *mac;
+ int i;
+
+ if (!state || !name || !buf)
+ return -EINVAL;
+
+ svar = state_find_var(state, name);
+ if (IS_ERR(svar))
+ return PTR_ERR(svar);
+
+ if (!strcmp(svar->type->type_name, "mac")) {
+ mac = to_state_mac(svar);
+ for (i = 0; i < 6; i++)
+ buf[i] = mac->value[i];
+ return 6;
+ }
+
+ return 0;
+}
+
void state_info(void)
{
struct state *state;
diff --git a/include/state.h b/include/state.h
index 63164f9..f1882ae 100644
--- a/include/state.h
+++ b/include/state.h
@@ -23,4 +23,6 @@ int state_load(struct state *state);
int state_save(struct state *state);
void state_info(void);
+int state_read_mac(struct state *state, const char *name, u8 *buf);
+
#endif /* __STATE_H */
--
2.7.4
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next prev parent reply other threads:[~2017-11-02 12:43 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-11-02 12:42 [PATCH v2 1/6] ARM: boards: phytec-som-am335x: Add unified MLO Daniel Schultz
2017-11-02 12:42 ` [PATCH v2 2/6] ARM: dts: AM335x: Add state framework Daniel Schultz
2017-11-02 12:42 ` [PATCH v2 3/6] ARM: configs: am335x_defconfig: Add state config Daniel Schultz
2017-11-02 12:42 ` [PATCH v2 4/6] common: state: Add variable_type to state_variable Daniel Schultz
2017-11-03 8:12 ` Sascha Hauer
2017-11-02 12:42 ` Daniel Schultz [this message]
2017-11-03 8:19 ` [PATCH v2 5/6] common: state: Add function to read state MAC Sascha Hauer
2017-11-02 12:42 ` [PATCH v2 6/6] ARM: phytec-som-am335x: Set MAC addresses from state Daniel Schultz
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