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authorKent Gibson <warthog618@gmail.com>2020-09-28 08:28:04 +0800
committerBartosz Golaszewski <bgolaszewski@baylibre.com>2020-09-30 10:57:20 +0200
commit7ff6d1d25a9ea3a03f795d383889ac34fbc601d5 (patch)
treebc2de9aaec7e9eadb51e1bff277cc00d08e017d4 /tools/gpio/gpio-utils.h
parented60aee0edcda1fabc39ab27c9650fa172f461b4 (diff)
tools: gpio: port gpio-hammer to v2 uAPI
Port the gpio-hammer tool to the latest GPIO uAPI. Signed-off-by: Kent Gibson <warthog618@gmail.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Diffstat (limited to 'tools/gpio/gpio-utils.h')
-rw-r--r--tools/gpio/gpio-utils.h46
1 files changed, 42 insertions, 4 deletions
diff --git a/tools/gpio/gpio-utils.h b/tools/gpio/gpio-utils.h
index 324729577865..6c69a9f1c253 100644
--- a/tools/gpio/gpio-utils.h
+++ b/tools/gpio/gpio-utils.h
@@ -12,7 +12,9 @@
#ifndef _GPIO_UTILS_H_
#define _GPIO_UTILS_H_
+#include <stdbool.h>
#include <string.h>
+#include <linux/types.h>
#define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]))
@@ -26,16 +28,52 @@ int gpiotools_request_linehandle(const char *device_name, unsigned int *lines,
unsigned int num_lines, unsigned int flag,
struct gpiohandle_data *data,
const char *consumer_label);
-int gpiotools_set_values(const int fd, struct gpiohandle_data *data);
-int gpiotools_get_values(const int fd, struct gpiohandle_data *data);
int gpiotools_release_linehandle(const int fd);
+int gpiotools_request_line(const char *device_name,
+ unsigned int *lines,
+ unsigned int num_lines,
+ struct gpio_v2_line_config *config,
+ const char *consumer);
+int gpiotools_set_values(const int fd, struct gpio_v2_line_values *values);
+int gpiotools_get_values(const int fd, struct gpio_v2_line_values *values);
+int gpiotools_release_line(const int fd);
+
int gpiotools_get(const char *device_name, unsigned int line);
int gpiotools_gets(const char *device_name, unsigned int *lines,
- unsigned int num_lines, struct gpiohandle_data *data);
+ unsigned int num_lines, unsigned int *values);
int gpiotools_set(const char *device_name, unsigned int line,
unsigned int value);
int gpiotools_sets(const char *device_name, unsigned int *lines,
- unsigned int num_lines, struct gpiohandle_data *data);
+ unsigned int num_lines, unsigned int *values);
+
+/* helper functions for gpio_v2_line_values bits */
+static inline void gpiotools_set_bit(__u64 *b, int n)
+{
+ *b |= _BITULL(n);
+}
+
+static inline void gpiotools_change_bit(__u64 *b, int n)
+{
+ *b ^= _BITULL(n);
+}
+
+static inline void gpiotools_clear_bit(__u64 *b, int n)
+{
+ *b &= ~_BITULL(n);
+}
+
+static inline int gpiotools_test_bit(__u64 b, int n)
+{
+ return !!(b & _BITULL(n));
+}
+
+static inline void gpiotools_assign_bit(__u64 *b, int n, bool value)
+{
+ if (value)
+ gpiotools_set_bit(b, n);
+ else
+ gpiotools_clear_bit(b, n);
+}
#endif /* _GPIO_UTILS_H_ */