diff options
Diffstat (limited to 'drivers/staging/media/hantro/hantro_h1_jpeg_enc.c')
| -rw-r--r-- | drivers/staging/media/hantro/hantro_h1_jpeg_enc.c | 125 |
1 files changed, 125 insertions, 0 deletions
diff --git a/drivers/staging/media/hantro/hantro_h1_jpeg_enc.c b/drivers/staging/media/hantro/hantro_h1_jpeg_enc.c new file mode 100644 index 000000000000..0c1e3043dc7e --- /dev/null +++ b/drivers/staging/media/hantro/hantro_h1_jpeg_enc.c @@ -0,0 +1,125 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Hantro VPU codec driver + * + * Copyright (C) 2018 Rockchip Electronics Co., Ltd. + */ + +#include <asm/unaligned.h> +#include <media/v4l2-mem2mem.h> +#include "hantro_jpeg.h" +#include "hantro.h" +#include "hantro_v4l2.h" +#include "hantro_hw.h" +#include "hantro_h1_regs.h" + +#define H1_JPEG_QUANT_TABLE_COUNT 16 + +static void hantro_h1_set_src_img_ctrl(struct hantro_dev *vpu, + struct hantro_ctx *ctx) +{ + struct v4l2_pix_format_mplane *pix_fmt = &ctx->src_fmt; + u32 reg; + + reg = H1_REG_IN_IMG_CTRL_ROW_LEN(pix_fmt->width) + | H1_REG_IN_IMG_CTRL_OVRFLR_D4(0) + | H1_REG_IN_IMG_CTRL_OVRFLB_D4(0) + | H1_REG_IN_IMG_CTRL_FMT(ctx->vpu_src_fmt->enc_fmt); + vepu_write_relaxed(vpu, reg, H1_REG_IN_IMG_CTRL); +} + +static void hantro_h1_jpeg_enc_set_buffers(struct hantro_dev *vpu, + struct hantro_ctx *ctx, + struct vb2_buffer *src_buf) +{ + struct v4l2_pix_format_mplane *pix_fmt = &ctx->src_fmt; + dma_addr_t src[3]; + + WARN_ON(pix_fmt->num_planes > 3); + + vepu_write_relaxed(vpu, ctx->jpeg_enc.bounce_buffer.dma, + H1_REG_ADDR_OUTPUT_STREAM); + vepu_write_relaxed(vpu, ctx->jpeg_enc.bounce_buffer.size, + H1_REG_STR_BUF_LIMIT); + + if (pix_fmt->num_planes == 1) { + src[0] = vb2_dma_contig_plane_dma_addr(src_buf, 0); + /* single plane formats we supported are all interlaced */ + vepu_write_relaxed(vpu, src[0], H1_REG_ADDR_IN_PLANE_0); + } else if (pix_fmt->num_planes == 2) { + src[0] = vb2_dma_contig_plane_dma_addr(src_buf, 0); + src[1] = vb2_dma_contig_plane_dma_addr(src_buf, 1); + vepu_write_relaxed(vpu, src[0], H1_REG_ADDR_IN_PLANE_0); + vepu_write_relaxed(vpu, src[1], H1_REG_ADDR_IN_PLANE_1); + } else { + src[0] = vb2_dma_contig_plane_dma_addr(src_buf, 0); + src[1] = vb2_dma_contig_plane_dma_addr(src_buf, 1); + src[2] = vb2_dma_contig_plane_dma_addr(src_buf, 2); + vepu_write_relaxed(vpu, src[0], H1_REG_ADDR_IN_PLANE_0); + vepu_write_relaxed(vpu, src[1], H1_REG_ADDR_IN_PLANE_1); + vepu_write_relaxed(vpu, src[2], H1_REG_ADDR_IN_PLANE_2); + } +} + +static void +hantro_h1_jpeg_enc_set_qtable(struct hantro_dev *vpu, + unsigned char *luma_qtable, + unsigned char *chroma_qtable) +{ + u32 reg, i; + + for (i = 0; i < H1_JPEG_QUANT_TABLE_COUNT; i++) { + reg = get_unaligned_be32(&luma_qtable[i]); + vepu_write_relaxed(vpu, reg, H1_REG_JPEG_LUMA_QUAT(i)); + + reg = get_unaligned_be32(&chroma_qtable[i]); + vepu_write_relaxed(vpu, reg, H1_REG_JPEG_CHROMA_QUAT(i)); + } +} + +void hantro_h1_jpeg_enc_run(struct hantro_ctx *ctx) +{ + struct hantro_dev *vpu = ctx->dev; + struct vb2_v4l2_buffer *src_buf, *dst_buf; + struct hantro_jpeg_ctx jpeg_ctx; + u32 reg; + + src_buf = v4l2_m2m_next_src_buf(ctx->fh.m2m_ctx); + dst_buf = v4l2_m2m_next_dst_buf(ctx->fh.m2m_ctx); + + memset(&jpeg_ctx, 0, sizeof(jpeg_ctx)); + jpeg_ctx.buffer = vb2_plane_vaddr(&dst_buf->vb2_buf, 0); + jpeg_ctx.width = ctx->dst_fmt.width; + jpeg_ctx.height = ctx->dst_fmt.height; + jpeg_ctx.quality = ctx->jpeg_quality; + hantro_jpeg_header_assemble(&jpeg_ctx); + + /* Switch to JPEG encoder mode before writing registers */ + vepu_write_relaxed(vpu, H1_REG_ENC_CTRL_ENC_MODE_JPEG, + H1_REG_ENC_CTRL); + + hantro_h1_set_src_img_ctrl(vpu, ctx); + hantro_h1_jpeg_enc_set_buffers(vpu, ctx, &src_buf->vb2_buf); + hantro_h1_jpeg_enc_set_qtable(vpu, + hantro_jpeg_get_qtable(&jpeg_ctx, 0), + hantro_jpeg_get_qtable(&jpeg_ctx, 1)); + + reg = H1_REG_AXI_CTRL_OUTPUT_SWAP16 + | H1_REG_AXI_CTRL_INPUT_SWAP16 + | H1_REG_AXI_CTRL_BURST_LEN(16) + | H1_REG_AXI_CTRL_OUTPUT_SWAP32 + | H1_REG_AXI_CTRL_INPUT_SWAP32 + | H1_REG_AXI_CTRL_OUTPUT_SWAP8 + | H1_REG_AXI_CTRL_INPUT_SWAP8; + /* Make sure that all registers are written at this point. */ + vepu_write(vpu, reg, H1_REG_AXI_CTRL); + + reg = H1_REG_ENC_CTRL_WIDTH(JPEG_MB_WIDTH(ctx->src_fmt.width)) + | H1_REG_ENC_CTRL_HEIGHT(JPEG_MB_HEIGHT(ctx->src_fmt.height)) + | H1_REG_ENC_CTRL_ENC_MODE_JPEG + | H1_REG_ENC_PIC_INTRA + | H1_REG_ENC_CTRL_EN_BIT; + /* Kick the watchdog and start encoding */ + schedule_delayed_work(&vpu->watchdog_work, msecs_to_jiffies(2000)); + vepu_write(vpu, reg, H1_REG_ENC_CTRL); +} |