| Nicholas Flintham | 1e3d311 | 2013-04-10 10:48:38 +0100 | [diff] [blame^] | 1 | #ifndef __LINUX_GPIO_H |
| 2 | #define __LINUX_GPIO_H |
| 3 | |
| 4 | |
| 5 | #define GPIOF_DIR_OUT (0 << 0) |
| 6 | #define GPIOF_DIR_IN (1 << 0) |
| 7 | |
| 8 | #define GPIOF_INIT_LOW (0 << 1) |
| 9 | #define GPIOF_INIT_HIGH (1 << 1) |
| 10 | |
| 11 | #define GPIOF_IN (GPIOF_DIR_IN) |
| 12 | #define GPIOF_OUT_INIT_LOW (GPIOF_DIR_OUT | GPIOF_INIT_LOW) |
| 13 | #define GPIOF_OUT_INIT_HIGH (GPIOF_DIR_OUT | GPIOF_INIT_HIGH) |
| 14 | |
| 15 | #define GPIOF_OPEN_DRAIN (1 << 2) |
| 16 | |
| 17 | #define GPIOF_OPEN_SOURCE (1 << 3) |
| 18 | |
| 19 | struct gpio { |
| 20 | unsigned gpio; |
| 21 | unsigned long flags; |
| 22 | const char *label; |
| 23 | }; |
| 24 | |
| 25 | #ifdef CONFIG_GENERIC_GPIO |
| 26 | #include <asm/gpio.h> |
| 27 | |
| 28 | #else |
| 29 | |
| 30 | #include <linux/kernel.h> |
| 31 | #include <linux/types.h> |
| 32 | #include <linux/errno.h> |
| 33 | #include <linux/bug.h> |
| 34 | |
| 35 | struct device; |
| 36 | struct gpio_chip; |
| 37 | |
| 38 | static inline bool gpio_is_valid(int number) |
| 39 | { |
| 40 | return false; |
| 41 | } |
| 42 | |
| 43 | static inline int gpio_request(unsigned gpio, const char *label) |
| 44 | { |
| 45 | return -ENOSYS; |
| 46 | } |
| 47 | |
| 48 | static inline int gpio_request_one(unsigned gpio, |
| 49 | unsigned long flags, const char *label) |
| 50 | { |
| 51 | return -ENOSYS; |
| 52 | } |
| 53 | |
| 54 | static inline int gpio_request_array(const struct gpio *array, size_t num) |
| 55 | { |
| 56 | return -ENOSYS; |
| 57 | } |
| 58 | |
| 59 | static inline void gpio_free(unsigned gpio) |
| 60 | { |
| 61 | might_sleep(); |
| 62 | |
| 63 | |
| 64 | WARN_ON(1); |
| 65 | } |
| 66 | |
| 67 | static inline void gpio_free_array(const struct gpio *array, size_t num) |
| 68 | { |
| 69 | might_sleep(); |
| 70 | |
| 71 | |
| 72 | WARN_ON(1); |
| 73 | } |
| 74 | |
| 75 | static inline int gpio_direction_input(unsigned gpio) |
| 76 | { |
| 77 | return -ENOSYS; |
| 78 | } |
| 79 | |
| 80 | static inline int gpio_direction_output(unsigned gpio, int value) |
| 81 | { |
| 82 | return -ENOSYS; |
| 83 | } |
| 84 | |
| 85 | static inline int gpio_set_debounce(unsigned gpio, unsigned debounce) |
| 86 | { |
| 87 | return -ENOSYS; |
| 88 | } |
| 89 | |
| 90 | static inline int gpio_get_value(unsigned gpio) |
| 91 | { |
| 92 | |
| 93 | WARN_ON(1); |
| 94 | return 0; |
| 95 | } |
| 96 | |
| 97 | static inline void gpio_set_value(unsigned gpio, int value) |
| 98 | { |
| 99 | |
| 100 | WARN_ON(1); |
| 101 | } |
| 102 | |
| 103 | static inline int gpio_cansleep(unsigned gpio) |
| 104 | { |
| 105 | |
| 106 | WARN_ON(1); |
| 107 | return 0; |
| 108 | } |
| 109 | |
| 110 | static inline int gpio_get_value_cansleep(unsigned gpio) |
| 111 | { |
| 112 | |
| 113 | WARN_ON(1); |
| 114 | return 0; |
| 115 | } |
| 116 | |
| 117 | static inline void gpio_set_value_cansleep(unsigned gpio, int value) |
| 118 | { |
| 119 | |
| 120 | WARN_ON(1); |
| 121 | } |
| 122 | |
| 123 | static inline int gpio_export(unsigned gpio, bool direction_may_change) |
| 124 | { |
| 125 | |
| 126 | WARN_ON(1); |
| 127 | return -EINVAL; |
| 128 | } |
| 129 | |
| 130 | static inline int gpio_export_link(struct device *dev, const char *name, |
| 131 | unsigned gpio) |
| 132 | { |
| 133 | |
| 134 | WARN_ON(1); |
| 135 | return -EINVAL; |
| 136 | } |
| 137 | |
| 138 | static inline int gpio_sysfs_set_active_low(unsigned gpio, int value) |
| 139 | { |
| 140 | |
| 141 | WARN_ON(1); |
| 142 | return -EINVAL; |
| 143 | } |
| 144 | |
| 145 | static inline void gpio_unexport(unsigned gpio) |
| 146 | { |
| 147 | |
| 148 | WARN_ON(1); |
| 149 | } |
| 150 | |
| 151 | static inline int gpio_to_irq(unsigned gpio) |
| 152 | { |
| 153 | |
| 154 | WARN_ON(1); |
| 155 | return -EINVAL; |
| 156 | } |
| 157 | |
| 158 | static inline int irq_to_gpio(unsigned irq) |
| 159 | { |
| 160 | |
| 161 | WARN_ON(1); |
| 162 | return -EINVAL; |
| 163 | } |
| 164 | |
| 165 | #endif |
| 166 | |
| 167 | #endif |