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tools: gpio: port gpio-hammer to v2 uAPI

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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>
This commit is contained in:
Kent Gibson
2020-09-28 08:28:04 +08:00
committed by Bartosz Golaszewski
parent ed60aee0ed
commit 7ff6d1d25a
3 changed files with 197 additions and 45 deletions
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46
tools/gpio/gpio-utils.h
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@@ -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_ */