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/* SPDX-License-Identifier: GPL-2.0 */
/*
* Hantro VPU codec driver
*
* Copyright 2018 Google LLC.
* Tomasz Figa <tfiga@chromium.org>
*/
#ifndef HANTRO_HW_H_
#define HANTRO_HW_H_
#include <linux/interrupt.h>
#include <linux/v4l2-controls.h>
#include <media/mpeg2-ctrls.h>
#include <media/videobuf2-core.h>
struct hantro_dev;
struct hantro_ctx;
struct hantro_buf;
struct hantro_variant;
/**
* struct hantro_aux_buf - auxiliary DMA buffer for hardware data
* @cpu: CPU pointer to the buffer.
* @dma: DMA address of the buffer.
* @size: Size of the buffer.
*/
struct hantro_aux_buf {
void *cpu;
dma_addr_t dma;
size_t size;
};
/**
* struct hantro_jpeg_enc_hw_ctx
* @bounce_buffer: Bounce buffer
*/
struct hantro_jpeg_enc_hw_ctx {
struct hantro_aux_buf bounce_buffer;
};
/**
* struct hantro_mpeg2_dec_hw_ctx
* @qtable: Quantization table
*/
struct hantro_mpeg2_dec_hw_ctx {
struct hantro_aux_buf qtable;
};
/**
* struct hantro_codec_ops - codec mode specific operations
*
* @init: If needed, can be used for initialization.
* Optional and called from process context.
* @exit: If needed, can be used to undo the .init phase.
* Optional and called from process context.
* @run: Start single {en,de)coding job. Called from atomic context
* to indicate that a pair of buffers is ready and the hardware
* should be programmed and started.
* @done: Read back processing results and additional data from hardware.
* @reset: Reset the hardware in case of a timeout.
*/
struct hantro_codec_ops {
int (*init)(struct hantro_ctx *ctx);
void (*exit)(struct hantro_ctx *ctx);
void (*run)(struct hantro_ctx *ctx);
void (*done)(struct hantro_ctx *ctx, enum vb2_buffer_state);
void (*reset)(struct hantro_ctx *ctx);
};
/**
* enum hantro_enc_fmt - source format ID for hardware registers.
*/
enum hantro_enc_fmt {
RK3288_VPU_ENC_FMT_YUV420P = 0,
RK3288_VPU_ENC_FMT_YUV420SP = 1,
RK3288_VPU_ENC_FMT_YUYV422 = 2,
RK3288_VPU_ENC_FMT_UYVY422 = 3,
};
extern const struct hantro_variant rk3399_vpu_variant;
extern const struct hantro_variant rk3328_vpu_variant;
extern const struct hantro_variant rk3288_vpu_variant;
void hantro_watchdog(struct work_struct *work);
void hantro_run(struct hantro_ctx *ctx);
void hantro_irq_done(struct hantro_dev *vpu, unsigned int bytesused,
enum vb2_buffer_state result);
void hantro_h1_jpeg_enc_run(struct hantro_ctx *ctx);
void rk3399_vpu_jpeg_enc_run(struct hantro_ctx *ctx);
int hantro_jpeg_enc_init(struct hantro_ctx *ctx);
void hantro_jpeg_enc_exit(struct hantro_ctx *ctx);
void hantro_g1_mpeg2_dec_run(struct hantro_ctx *ctx);
void rk3399_vpu_mpeg2_dec_run(struct hantro_ctx *ctx);
void hantro_mpeg2_dec_copy_qtable(u8 *qtable,
const struct v4l2_ctrl_mpeg2_quantization *ctrl);
int hantro_mpeg2_dec_init(struct hantro_ctx *ctx);
void hantro_mpeg2_dec_exit(struct hantro_ctx *ctx);
#endif /* HANTRO_HW_H_ */
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