diff options
Diffstat (limited to 'src/soc/amd/common/block/include/amdblocks/gpio_banks.h')
| -rw-r--r-- | src/soc/amd/common/block/include/amdblocks/gpio_banks.h | 69 |
1 files changed, 48 insertions, 21 deletions
diff --git a/src/soc/amd/common/block/include/amdblocks/gpio_banks.h b/src/soc/amd/common/block/include/amdblocks/gpio_banks.h index 92aa8a2e4f..0521e4c520 100644 --- a/src/soc/amd/common/block/include/amdblocks/gpio_banks.h +++ b/src/soc/amd/common/block/include/amdblocks/gpio_banks.h @@ -4,6 +4,7 @@ #define __AMDBLOCK_GPIO_BANKS_H__ #include <stdint.h> +#include <stdbool.h> #include <stddef.h> struct soc_amd_gpio { @@ -106,27 +107,53 @@ enum { #define GPIO_INT_LEVEL_HIGH (GPIO_ACTIVE_HIGH | GPIO_LEVEL_TRIG) #define GPIO_INT_LEVEL_LOW (GPIO_ACTIVE_LOW | GPIO_LEVEL_TRIG) -enum { - GPIO_TRIGGER_LEVEL_LOW, - GPIO_TRIGGER_LEVEL_HIGH, - GPIO_TRIGGER_EDGE_LOW, - GPIO_TRIGGER_EDGE_HIGH, -}; +/* + * Flags used for GPIO configuration. These provide additional information that does not go + * directly into GPIO control register. These are stored in `flags` field in soc_amd_gpio. + */ +#define GPIO_FLAG_EVENT_TRIGGER_LEVEL (1 << 0) +#define GPIO_FLAG_EVENT_TRIGGER_EDGE (0 << 0) +#define GPIO_FLAG_EVENT_TRIGGER_MASK (1 << 0) +#define GPIO_FLAG_EVENT_ACTIVE_HIGH (1 << 1) +#define GPIO_FLAG_EVENT_ACTIVE_LOW (0 << 1) +#define GPIO_FLAG_EVENT_ACTIVE_MASK (1 << 1) +#define GPIO_FLAG_SCI (1 << 2) +#define GPIO_FLAG_SMI (1 << 3) +#define GPIO_FLAG_DEBOUNCE (1 << 4) +#define GPIO_FLAG_WAKE (1 << 5) +#define GPIO_FLAG_INT (1 << 6) +#define GPIO_FLAG_SPECIAL_MASK (0x1f << 2) + +/* Trigger configuration for GPIO SCI/SMI events. */ +#define GPIO_FLAG_EVENT_TRIGGER_LEVEL_HIGH (GPIO_FLAG_EVENT_TRIGGER_LEVEL | \ + GPIO_FLAG_EVENT_ACTIVE_HIGH) +#define GPIO_FLAG_EVENT_TRIGGER_LEVEL_LOW (GPIO_FLAG_EVENT_TRIGGER_LEVEL | \ + GPIO_FLAG_EVENT_ACTIVE_LOW) +#define GPIO_FLAG_EVENT_TRIGGER_EDGE_HIGH (GPIO_FLAG_EVENT_TRIGGER_EDGE | \ + GPIO_FLAG_EVENT_ACTIVE_HIGH) +#define GPIO_FLAG_EVENT_TRIGGER_EDGE_LOW (GPIO_FLAG_EVENT_TRIGGER_EDGE | \ + GPIO_FLAG_EVENT_ACTIVE_LOW) + +static inline bool is_gpio_event_level_triggered(uint32_t flags) +{ + return (flags & GPIO_FLAG_EVENT_TRIGGER_MASK) == GPIO_FLAG_EVENT_TRIGGER_LEVEL; +} + +static inline bool is_gpio_event_edge_triggered(uint32_t flags) +{ + return (flags & GPIO_FLAG_EVENT_TRIGGER_MASK) == GPIO_FLAG_EVENT_TRIGGER_EDGE; +} + +static inline bool is_gpio_event_active_high(uint32_t flags) +{ + return (flags & GPIO_FLAG_EVENT_ACTIVE_MASK) == GPIO_FLAG_EVENT_ACTIVE_HIGH; +} + +static inline bool is_gpio_event_active_low(uint32_t flags) +{ + return (flags & GPIO_FLAG_EVENT_ACTIVE_MASK) == GPIO_FLAG_EVENT_ACTIVE_LOW; +} -#define GPIO_SPECIAL_FLAG (1 << 31) -#define GPIO_DEBOUNCE_FLAG (1 << 30) -#define GPIO_WAKE_FLAG (1 << 29) -#define GPIO_INT_FLAG (1 << 28) -#define GPIO_SMI_FLAG (1 << 27) -#define GPIO_SCI_FLAG (1 << 26) -#define GPIO_FLAG_DEBOUNCE (GPIO_SPECIAL_FLAG | GPIO_DEBOUNCE_FLAG) -#define GPIO_FLAG_WAKE (GPIO_SPECIAL_FLAG | GPIO_WAKE_FLAG) -#define GPIO_FLAG_INT (GPIO_SPECIAL_FLAG | GPIO_INT_FLAG) -#define GPIO_FLAG_SCI (GPIO_SPECIAL_FLAG | GPIO_SCI_FLAG) -#define GPIO_FLAG_SMI (GPIO_SPECIAL_FLAG | GPIO_SMI_FLAG) - -#define FLAGS_TRIGGER_MASK 0x00000003 -#define GPIO_SPECIAL_MASK 0x7c000000 #define GPIO_DEBOUNCE_MASK 0x000000ff #define INT_TRIGGER_MASK 0x00000700 #define INT_WAKE_MASK 0x0000e700 @@ -238,7 +265,7 @@ enum { GPIO_EVENT_INT ## _ ## action), \ .flags = GPIO_FLAG_INT } /* Auxiliary macro for SCI and SMI */ -#define PAD_AUX2(trigger, flag) (GPIO_TRIGGER ## _ ## trigger | flag) +#define PAD_AUX2(trigger, flag) (GPIO_FLAG_EVENT_TRIGGER ## _ ## trigger | flag) /* SCI pad configuration */ #define PAD_SCI(pin, pull, trigger) \ { .gpio = (pin), \ |