hpm_jpeg_drv.h

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/*
 * Copyright (c) 2021 HPMicro
 *
 * SPDX-License-Identifier: BSD-3-Clause
 *
 */
 
#ifndef HPM_JPEG_DRV_H
#define HPM_JPEG_DRV_H
 
#include "hpm_common.h"
#include "hpm_jpeg_regs.h"
 
#define JPEG_EVENT_BUSY             JPEG_STAT_BUSY_MASK
#define JPEG_EVENT_OUT_DMA_FINISH   JPEG_STAT_OUT_DMA_TRANSFER_DONE_MASK
#define JPEG_EVENT_IN_DMA_FINISH    JPEG_STAT_IN_DMA_TRANSFER_DONE_MASK
#define JPEG_EVENT_ERROR            (JPEG_STAT_RESTART_MARKER_ERROR_MASK | (0xF << 7))
 
#define JPEG_BYTE_ORDER_3210        (0U)      
#define JPEG_BYTE_ORDER_2301        (1U)      
#define JPEG_BYTE_ORDER_1032        (2U)      
#define JPEG_BYTE_ORDER_0123        (3U)      
#define JPEG_SUPPORTED_FORMAT_420   (0U)       
#define JPEG_SUPPORTED_FORMAT_422H  (1U)       
#define JPEG_SUPPORTED_FORMAT_422V  (2U)       
#define JPEG_SUPPORTED_FORMAT_444   (3U)       
#define JPEG_SUPPORTED_FORMAT_400   (4U)       
typedef struct {
    uint8_t hy:2;                   
    uint8_t vy:2;                   
    uint8_t hc:2;                   
    uint8_t vc:2;                   
} jpeg_sampling_t;
 
typedef struct {
    uint8_t pixel_width;
    uint8_t ipath;
    uint8_t opath;
    bool is_rgb;
} jpeg_pixel_t;
 
typedef enum jpeg_table {
    jpeg_table_qmem =     0x201002,     
    jpeg_table_huffenc =  0x201803,     
    jpeg_table_huffmin =  0x400104,     
    jpeg_table_huffbase = 0x200405,     
    jpeg_table_huffsymb = 0x101506,     
} jpeg_table_t;
 
typedef enum jpeg_pixel_format {
    jpeg_pixel_format_argb8888 = 0,
    jpeg_pixel_format_rgb565,
    jpeg_pixel_format_yuv422h1p,
    jpeg_pixel_format_y8,
} jpeg_pixel_format_t;
 
typedef struct {
    uint8_t jpeg_format;            
    jpeg_pixel_format_t in_pixel_format;
    jpeg_pixel_format_t out_pixel_format;
    uint8_t in_byte_order;          
    uint8_t out_byte_order;         
    bool enable_ycbcr;              
    uint16_t width_in_pixel;        
    uint16_t height_in_pixel;       
    uint16_t stride;                
    uint32_t in_buffer;             
    uint32_t out_buffer;            
} jpeg_job_config_t;
 
#ifdef __cplusplus
extern "C" {
#endif
 
static inline void jpeg_clear_cfg(JPEG_Type *ptr)
{
    ptr->CFG = 0;
}
 
static inline void jpeg_disable(JPEG_Type *ptr)
{
    ptr->CFG &= ~JPEG_CFG_JPEG_EN_MASK;
}
 
static inline void jpeg_enable(JPEG_Type *ptr)
{
    ptr->CFG |= JPEG_CFG_JPEG_EN_MASK;
}
 
static inline void jpeg_stop(JPEG_Type *ptr)
{
    ptr->CFG &= ~JPEG_CFG_START_MASK;
}
 
static inline void jpeg_start(JPEG_Type *ptr)
{
    ptr->CFG |= JPEG_CFG_START_MASK;
}
 
static inline uint32_t jpeg_get_status(JPEG_Type *ptr)
{
    return ptr->STAT;
}
 
static inline void jpeg_clear_status(JPEG_Type *ptr, uint32_t mask)
{
    ptr->STAT |= mask;
}
 
static inline uint32_t jpeg_get_encoded_length(JPEG_Type *ptr)
{
    return JPEG_OUTDMACNT_VAL_GET(ptr->OUTDMACNT);
}
 
static inline void jpeg_software_reset(JPEG_Type *ptr)
{
    ptr->CFG |= JPEG_CFG_JPEG_SFTRST_MASK;
    ptr->CFG &= ~JPEG_CFG_JPEG_SFTRST_MASK;
}
 
void jpeg_reset(JPEG_Type *ptr);
 
void jpeg_enable_irq(JPEG_Type *ptr, uint32_t mask);
 
void jpeg_disable_irq(JPEG_Type *ptr, uint32_t mask);
 
void jpeg_init(JPEG_Type *ptr);
 
hpm_stat_t jpeg_fill_table(JPEG_Type *ptr, jpeg_table_t table, uint8_t *data, uint32_t count);
 
hpm_stat_t jpeg_start_decode(JPEG_Type *ptr, jpeg_job_config_t *config, uint32_t length);
 
hpm_stat_t jpeg_start_encode(JPEG_Type *ptr, jpeg_job_config_t *config);
 
#ifdef __cplusplus
}
#endif
#endif /* HPM_JPEG_DRV_H */