| /* SPDX-License-Identifier: GPL-2.0-only */ |
| |
| #ifndef AMD_BLOCK_GPIO_BANKS_H |
| #define AMD_BLOCK_GPIO_BANKS_H |
| |
| #include <types.h> |
| #include <amdblocks/gpio_defs.h> |
| |
| typedef uint32_t gpio_t; |
| |
| struct soc_amd_gpio { |
| gpio_t gpio; |
| uint8_t function; |
| uint32_t control; |
| uint32_t flags; |
| }; |
| |
| struct soc_amd_gpio_register_save { |
| uint32_t control_value; |
| uint8_t mux_value; |
| }; |
| |
| struct soc_amd_event { |
| gpio_t gpio; |
| uint8_t event; |
| }; |
| |
| struct gpio_wake_state { |
| uint32_t control_switch; |
| uint32_t wake_stat[2]; |
| /* Number of wake_gpio with a valid setting. */ |
| uint32_t num_valid_wake_gpios; |
| /* GPIO index number that caused a wake. */ |
| gpio_t wake_gpios[16]; |
| }; |
| |
| /* Fill gpio_wake_state object for future event reporting. */ |
| void gpio_fill_wake_state(struct gpio_wake_state *state); |
| /* Add gpio events to the eventlog. */ |
| void gpio_add_events(void); |
| |
| 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; |
| } |
| |
| /* |
| * gpio_configure_pads_with_override accepts as input two GPIO tables: |
| * 1. Base config |
| * 2. Override config |
| * |
| * This function configures raw pads in base config and applies override in |
| * override config if any. Thus, for every GPIO_x in base config, this function |
| * looks up the GPIO in override config and if it is present there, then applies |
| * the configuration from override config. GPIOs that are only specified in the |
| * override, but not in the base configuration, will be ignored. |
| */ |
| void gpio_configure_pads_with_override(const struct soc_amd_gpio *base_cfg, |
| size_t base_num_pads, |
| const struct soc_amd_gpio *override_cfg, |
| size_t override_num_pads); |
| |
| /** |
| * @brief program a particular set of GPIO |
| * |
| * @param gpio_list_ptr = pointer to array of gpio configurations |
| * @param size = number of entries in array |
| * |
| * @return none |
| */ |
| void gpio_configure_pads(const struct soc_amd_gpio *gpio_list_ptr, size_t size); |
| /* Return the interrupt status and clear if set. */ |
| int gpio_interrupt_status(gpio_t gpio); |
| /* Implemented by soc, provides table of available GPIO mapping to Gevents */ |
| void soc_get_gpio_event_table(const struct soc_amd_event **table, size_t *items); |
| |
| void gpio_save_pin_registers(gpio_t gpio, struct soc_amd_gpio_register_save *save); |
| void gpio_restore_pin_registers(gpio_t gpio, struct soc_amd_gpio_register_save *save); |
| |
| #endif /* AMD_BLOCK_GPIO_BANKS_H */ |