/*
* Copyright 2012 - 15 Advanced Micro Devices , Inc .
*
* Permission is hereby granted , free of charge , to any person obtaining a
* copy of this software and associated documentation files ( the " Software " ) ,
* to deal in the Software without restriction , including without limitation
* the rights to use , copy , modify , merge , publish , distribute , sublicense ,
* and / or sell copies of the Software , and to permit persons to whom the
* Software is furnished to do so , subject to the following conditions :
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software .
*
* THE SOFTWARE IS PROVIDED " AS IS " , WITHOUT WARRANTY OF ANY KIND , EXPRESS OR
* IMPLIED , INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY ,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT . IN NO EVENT SHALL
* THE COPYRIGHT HOLDER ( S ) OR AUTHOR ( S ) BE LIABLE FOR ANY CLAIM , DAMAGES OR
* OTHER LIABILITY , WHETHER IN AN ACTION OF CONTRACT , TORT OR OTHERWISE ,
* ARISING FROM , OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE .
*
* Authors : AMD
*
*/
#ifndef __DAL_HW_GPIO_H__
#define __DAL_HW_GPIO_H__
#include "gpio_regs.h"
#define FROM_HW_GPIO_PIN(ptr) \
container_of((ptr), struct hw_gpio, base)
struct addr_mask {
uint32_t addr;
uint32_t mask;
};
struct hw_gpio_pin {
const struct hw_gpio_pin_funcs *funcs;
enum gpio_id id;
uint32_t en;
enum gpio_mode mode;
bool opened;
struct dc_context *ctx;
};
struct hw_gpio_pin_funcs {
void (*destroy)(
struct hw_gpio_pin **ptr);
bool (*open)(
struct hw_gpio_pin *pin,
enum gpio_mode mode);
enum gpio_result (*get_value)(
const struct hw_gpio_pin *pin,
uint32_t *value);
enum gpio_result (*set_value)(
const struct hw_gpio_pin *pin,
uint32_t value);
enum gpio_result (*set_config)(
struct hw_gpio_pin *pin,
const struct gpio_config_data *config_data);
enum gpio_result (*change_mode)(
struct hw_gpio_pin *pin,
enum gpio_mode mode);
void (*close)(
struct hw_gpio_pin *pin);
};
struct hw_gpio;
/* Register indices are represented by member variables
* and are to be filled in by constructors of derived classes .
* These members permit the use of common code
* for programming registers , where the sequence is the same
* but register sets are different .
* Some GPIOs have HW mux which allows to choose
* what is the source of the signal in HW mode */
struct hw_gpio_pin_reg {
struct addr_mask DC_GPIO_DATA_MASK;
struct addr_mask DC_GPIO_DATA_A;
struct addr_mask DC_GPIO_DATA_EN;
struct addr_mask DC_GPIO_DATA_Y;
};
struct hw_gpio_mux_reg {
struct addr_mask GPIO_MUX_CONTROL;
struct addr_mask GPIO_MUX_STEREO_SEL;
};
struct hw_gpio {
struct hw_gpio_pin base;
/* variables to save register value */
struct {
uint32_t mask;
uint32_t a;
uint32_t en;
uint32_t mux;
} store;
/* GPIO MUX support */
bool mux_supported;
const struct gpio_registers *regs;
};
#define HW_GPIO_FROM_BASE(hw_gpio_pin) \
container_of((hw_gpio_pin), struct hw_gpio, base)
void dal_hw_gpio_construct(
struct hw_gpio *pin,
enum gpio_id id,
uint32_t en,
struct dc_context *ctx);
bool dal_hw_gpio_open(
struct hw_gpio_pin *pin,
enum gpio_mode mode);
enum gpio_result dal_hw_gpio_get_value(
const struct hw_gpio_pin *pin,
uint32_t *value);
enum gpio_result dal_hw_gpio_config_mode(
struct hw_gpio *pin,
enum gpio_mode mode);
void dal_hw_gpio_destruct(
struct hw_gpio *pin);
enum gpio_result dal_hw_gpio_set_value(
const struct hw_gpio_pin *ptr,
uint32_t value);
enum gpio_result dal_hw_gpio_change_mode(
struct hw_gpio_pin *ptr,
enum gpio_mode mode);
void dal_hw_gpio_close(
struct hw_gpio_pin *ptr);
#endif
Messung V0.5 in Prozent C=86 H=98 G=91
¤ Dauer der Verarbeitung: 0.11 Sekunden
(vorverarbeitet am 2026-10-12)
¤
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