kopia lustrzana https://github.com/espressif/esp-idf
55 wiersze
1.4 KiB
C
55 wiersze
1.4 KiB
C
/*
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* SPDX-FileCopyrightText: 2021-2022 Espressif Systems (Shanghai) CO LTD
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#pragma once
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#include <stdint.h>
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#include <stdbool.h>
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#include "hal/hal_utils.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* @brief LCD peripheral SOC layer handle
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*/
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typedef struct lcd_cam_dev_t *lcd_soc_handle_t;
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/**
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* @brief LCD HAL layer context
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*/
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typedef struct {
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lcd_soc_handle_t dev; // SOC layer handle
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} lcd_hal_context_t;
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/**
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* @brief LCD HAL layer initialization
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*
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* @param hal LCD HAL layer context
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* @param id LCD peripheral ID
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*/
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void lcd_hal_init(lcd_hal_context_t *hal, int id);
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#define LCD_HAL_PCLK_FLAG_ALLOW_EQUAL_SYSCLK (1 << 0)
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/**
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* @brief LCD PCLK clock calculation
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* @note Currently this function is only used by RGB LCD driver, I80 driver still uses a fixed clock division
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*
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* @param hal LCD HAL layer context
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* @param src_freq_hz LCD source clock frequency in Hz
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* @param expect_pclk_freq_hz Expected LCD PCLK frequency in Hz
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* @param lcd_clk_flags Extra flags to control LCD PCLK clock calculation, supported flags are prefixed with LCD_HAL_PCLK_FLAG_
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* @param lcd_clk_div Returned LCD clock divider parameter
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* @return Actual LCD PCLK frequency in Hz
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*/
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uint32_t lcd_hal_cal_pclk_freq(lcd_hal_context_t *hal, uint32_t src_freq_hz, uint32_t expect_pclk_freq_hz, int lcd_clk_flags, hal_utils_clk_div_t* lcd_clk_div);
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#ifdef __cplusplus
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}
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#endif
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