The bootcount is always how many time the system start.
To determine since when, this will depend on the driver implementation
and your hardware feature.
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@xxxxxxxxxxxx>
---
drivers/misc/Kconfig | 2 ++
drivers/misc/Makefile | 1 +
drivers/misc/bootcount/Kconfig | 12 +++++++++
drivers/misc/bootcount/Makefile | 1 +
drivers/misc/bootcount/core.c | 54 +++++++++++++++++++++++++++++++++++++++++
include/bootcount.h | 31 +++++++++++++++++++++++
6 files changed, 101 insertions(+)
create mode 100644 drivers/misc/bootcount/Kconfig
create mode 100644 drivers/misc/bootcount/Makefile
create mode 100644 drivers/misc/bootcount/core.c
create mode 100644 include/bootcount.h
diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig
index 606490b..2532444 100644
--- a/drivers/misc/Kconfig
+++ b/drivers/misc/Kconfig
@@ -15,4 +15,6 @@ config JTAG
help
Controls JTAG chains connected to I/O pins
+source "drivers/misc/bootcount/Kconfig"
+
endif # MISC_DEVICES
diff --git a/drivers/misc/Makefile b/drivers/misc/Makefile
index b085577..6d94db0 100644
--- a/drivers/misc/Makefile
+++ b/drivers/misc/Makefile
@@ -3,3 +3,4 @@
#
obj-$(CONFIG_JTAG) += jtag.o
+obj-$(CONFIG_BOOTCOUNT) += bootcount/
diff --git a/drivers/misc/bootcount/Kconfig b/drivers/misc/bootcount/Kconfig
new file mode 100644
index 0000000..77a1140
--- /dev/null
+++ b/drivers/misc/bootcount/Kconfig
@@ -0,0 +1,12 @@
+#
+# Boot Count devices
+#
+
+menuconfig BOOTCOUNT
+ bool "Boot Count"
+ help
+ Add support for boot count devices
+
+if BOOTCOUNT
+
+endif # BOOTCOUNT
diff --git a/drivers/misc/bootcount/Makefile b/drivers/misc/bootcount/Makefile
new file mode 100644
index 0000000..3c02ba1
--- /dev/null
+++ b/drivers/misc/bootcount/Makefile
@@ -0,0 +1 @@
+obj-y += core.o
diff --git a/drivers/misc/bootcount/core.c b/drivers/misc/bootcount/core.c
new file mode 100644
index 0000000..91274b3
--- /dev/null
+++ b/drivers/misc/bootcount/core.c
@@ -0,0 +1,54 @@
+/*
+ * Copyright (C) 2013 Jean-Christophe PLAGNIOL-VILLARD <plagnioj@xxxxxxxxxxxx>
+ *
+ * GPLv2 Only
+ */
+
+#include <common.h>
+#include <init.h>
+#include <bootcount.h>
+
+static struct bootcount_driver *bd;
+
+static struct device_d bootcount_device = {
+ .name = "bootcount",
+ .id = DEVICE_ID_SINGLE,
+};
+
+static int bootcount_count_set(struct param_d *p, void *priv)
+{
+ struct bootcount_driver *bd = priv;
+
+ bd->set(bd);
+
+ return 0;
+}
+
+int register_bootcount(struct bootcount_driver *drv)
+{
+ if (bd)
+ return -EBUSY;
+
+ bootcount_device.parent = drv->parent;
+ register_device(&bootcount_device);
+
+ bd = drv;
+
+ bd->dev = &bootcount_device;
+ dev_add_param_int(bd->dev, "count", bootcount_count_set,
+ NULL, &bd->count, "%d", bd);
+
+ return 0;
+}
+
+static int bootcount_inc(void)
+{
+ if (!bd)
+ return 0;
+
+ bd->count++;
+ bd->set(bd);
+
+ return 0;
+}
+late_initcall(bootcount_inc);
diff --git a/include/bootcount.h b/include/bootcount.h
new file mode 100644
index 0000000..2ef36b5
--- /dev/null
+++ b/include/bootcount.h
@@ -0,0 +1,31 @@
+/*
+ * Copyright (C) 2013 Jean-Christophe PLAGNIOL-VILLARD <plagnioj@xxxxxxxxxxxx>
+ *
+ * GPLv2 Only
+ */
+
+#ifndef __BOOTCOUNT_H__
+#define __BOOTCOUNT_H__
+
+#include <driver.h>
+
+struct bootcount_driver {
+ void (*set)(struct bootcount_driver *d);
+ void *priv;
+
+ int count;
+
+ struct device_d *dev;
+ struct device_d *parent;
+};
+
+#ifdef CONFIG_BOOTCOUNT
+int register_bootcount(struct bootcount_driver *d);
+#else
+static inline int register_bootcount(struct bootcount_driver *d)
+{
+ return 0
+}
+#endif
+
+#endif /* __BOOTCOUNT_H__ */
--
1.8.4.rc1
_______________________________________________
barebox mailing list
barebox@xxxxxxxxxxxxxxxxxxx
http://lists.infradead.org/mailman/listinfo/barebox
