diff options
Diffstat (limited to 'drivers/media/platform/verisilicon/hantro_g1_mpeg2_dec.c')
| -rw-r--r-- | drivers/media/platform/verisilicon/hantro_g1_mpeg2_dec.c | 240 |
1 files changed, 240 insertions, 0 deletions
diff --git a/drivers/media/platform/verisilicon/hantro_g1_mpeg2_dec.c b/drivers/media/platform/verisilicon/hantro_g1_mpeg2_dec.c new file mode 100644 index 000000000000..9aea331e1a3c --- /dev/null +++ b/drivers/media/platform/verisilicon/hantro_g1_mpeg2_dec.c @@ -0,0 +1,240 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Hantro VPU codec driver + * + * Copyright (C) 2018 Rockchip Electronics Co., Ltd. + */ + +#include <asm/unaligned.h> +#include <linux/bitfield.h> +#include <media/v4l2-mem2mem.h> +#include "hantro.h" +#include "hantro_hw.h" +#include "hantro_g1_regs.h" + +#define G1_SWREG(nr) ((nr) * 4) + +#define G1_REG_RLC_VLC_BASE G1_SWREG(12) +#define G1_REG_DEC_OUT_BASE G1_SWREG(13) +#define G1_REG_REFER0_BASE G1_SWREG(14) +#define G1_REG_REFER1_BASE G1_SWREG(15) +#define G1_REG_REFER2_BASE G1_SWREG(16) +#define G1_REG_REFER3_BASE G1_SWREG(17) +#define G1_REG_QTABLE_BASE G1_SWREG(40) + +#define G1_REG_DEC_AXI_RD_ID(v) (((v) << 24) & GENMASK(31, 24)) +#define G1_REG_DEC_TIMEOUT_E(v) ((v) ? BIT(23) : 0) +#define G1_REG_DEC_STRSWAP32_E(v) ((v) ? BIT(22) : 0) +#define G1_REG_DEC_STRENDIAN_E(v) ((v) ? BIT(21) : 0) +#define G1_REG_DEC_INSWAP32_E(v) ((v) ? BIT(20) : 0) +#define G1_REG_DEC_OUTSWAP32_E(v) ((v) ? BIT(19) : 0) +#define G1_REG_DEC_DATA_DISC_E(v) ((v) ? BIT(18) : 0) +#define G1_REG_DEC_LATENCY(v) (((v) << 11) & GENMASK(16, 11)) +#define G1_REG_DEC_CLK_GATE_E(v) ((v) ? BIT(10) : 0) +#define G1_REG_DEC_IN_ENDIAN(v) ((v) ? BIT(9) : 0) +#define G1_REG_DEC_OUT_ENDIAN(v) ((v) ? BIT(8) : 0) +#define G1_REG_DEC_ADV_PRE_DIS(v) ((v) ? BIT(6) : 0) +#define G1_REG_DEC_SCMD_DIS(v) ((v) ? BIT(5) : 0) +#define G1_REG_DEC_MAX_BURST(v) (((v) << 0) & GENMASK(4, 0)) + +#define G1_REG_DEC_MODE(v) (((v) << 28) & GENMASK(31, 28)) +#define G1_REG_RLC_MODE_E(v) ((v) ? BIT(27) : 0) +#define G1_REG_PIC_INTERLACE_E(v) ((v) ? BIT(23) : 0) +#define G1_REG_PIC_FIELDMODE_E(v) ((v) ? BIT(22) : 0) +#define G1_REG_PIC_B_E(v) ((v) ? BIT(21) : 0) +#define G1_REG_PIC_INTER_E(v) ((v) ? BIT(20) : 0) +#define G1_REG_PIC_TOPFIELD_E(v) ((v) ? BIT(19) : 0) +#define G1_REG_FWD_INTERLACE_E(v) ((v) ? BIT(18) : 0) +#define G1_REG_FILTERING_DIS(v) ((v) ? BIT(14) : 0) +#define G1_REG_WRITE_MVS_E(v) ((v) ? BIT(12) : 0) +#define G1_REG_DEC_AXI_WR_ID(v) (((v) << 0) & GENMASK(7, 0)) + +#define G1_REG_PIC_MB_WIDTH(v) (((v) << 23) & GENMASK(31, 23)) +#define G1_REG_PIC_MB_HEIGHT_P(v) (((v) << 11) & GENMASK(18, 11)) +#define G1_REG_ALT_SCAN_E(v) ((v) ? BIT(6) : 0) +#define G1_REG_TOPFIELDFIRST_E(v) ((v) ? BIT(5) : 0) + +#define G1_REG_STRM_START_BIT(v) (((v) << 26) & GENMASK(31, 26)) +#define G1_REG_QSCALE_TYPE(v) ((v) ? BIT(24) : 0) +#define G1_REG_CON_MV_E(v) ((v) ? BIT(4) : 0) +#define G1_REG_INTRA_DC_PREC(v) (((v) << 2) & GENMASK(3, 2)) +#define G1_REG_INTRA_VLC_TAB(v) ((v) ? BIT(1) : 0) +#define G1_REG_FRAME_PRED_DCT(v) ((v) ? BIT(0) : 0) + +#define G1_REG_INIT_QP(v) (((v) << 25) & GENMASK(30, 25)) +#define G1_REG_STREAM_LEN(v) (((v) << 0) & GENMASK(23, 0)) + +#define G1_REG_ALT_SCAN_FLAG_E(v) ((v) ? BIT(19) : 0) +#define G1_REG_FCODE_FWD_HOR(v) (((v) << 15) & GENMASK(18, 15)) +#define G1_REG_FCODE_FWD_VER(v) (((v) << 11) & GENMASK(14, 11)) +#define G1_REG_FCODE_BWD_HOR(v) (((v) << 7) & GENMASK(10, 7)) +#define G1_REG_FCODE_BWD_VER(v) (((v) << 3) & GENMASK(6, 3)) +#define G1_REG_MV_ACCURACY_FWD(v) ((v) ? BIT(2) : 0) +#define G1_REG_MV_ACCURACY_BWD(v) ((v) ? BIT(1) : 0) + +#define G1_REG_STARTMB_X(v) (((v) << 23) & GENMASK(31, 23)) +#define G1_REG_STARTMB_Y(v) (((v) << 15) & GENMASK(22, 15)) + +#define G1_REG_APF_THRESHOLD(v) (((v) << 0) & GENMASK(13, 0)) + +static void +hantro_g1_mpeg2_dec_set_quantisation(struct hantro_dev *vpu, + struct hantro_ctx *ctx) +{ + struct v4l2_ctrl_mpeg2_quantisation *q; + + q = hantro_get_ctrl(ctx, V4L2_CID_STATELESS_MPEG2_QUANTISATION); + hantro_mpeg2_dec_copy_qtable(ctx->mpeg2_dec.qtable.cpu, q); + vdpu_write_relaxed(vpu, ctx->mpeg2_dec.qtable.dma, G1_REG_QTABLE_BASE); +} + +static void +hantro_g1_mpeg2_dec_set_buffers(struct hantro_dev *vpu, struct hantro_ctx *ctx, + struct vb2_buffer *src_buf, + struct vb2_buffer *dst_buf, + const struct v4l2_ctrl_mpeg2_sequence *seq, + const struct v4l2_ctrl_mpeg2_picture *pic) +{ + dma_addr_t forward_addr = 0, backward_addr = 0; + dma_addr_t current_addr, addr; + + switch (pic->picture_coding_type) { + case V4L2_MPEG2_PIC_CODING_TYPE_B: + backward_addr = hantro_get_ref(ctx, pic->backward_ref_ts); + fallthrough; + case V4L2_MPEG2_PIC_CODING_TYPE_P: + forward_addr = hantro_get_ref(ctx, pic->forward_ref_ts); + } + + /* Source bitstream buffer */ + addr = vb2_dma_contig_plane_dma_addr(src_buf, 0); + vdpu_write_relaxed(vpu, addr, G1_REG_RLC_VLC_BASE); + + /* Destination frame buffer */ + addr = hantro_get_dec_buf_addr(ctx, dst_buf); + current_addr = addr; + + if (pic->picture_structure == V4L2_MPEG2_PIC_BOTTOM_FIELD) + addr += ALIGN(ctx->dst_fmt.width, 16); + vdpu_write_relaxed(vpu, addr, G1_REG_DEC_OUT_BASE); + + if (!forward_addr) + forward_addr = current_addr; + if (!backward_addr) + backward_addr = current_addr; + + /* Set forward ref frame (top/bottom field) */ + if (pic->picture_structure == V4L2_MPEG2_PIC_FRAME || + pic->picture_coding_type == V4L2_MPEG2_PIC_CODING_TYPE_B || + (pic->picture_structure == V4L2_MPEG2_PIC_TOP_FIELD && + pic->flags & V4L2_MPEG2_PIC_FLAG_TOP_FIELD_FIRST) || + (pic->picture_structure == V4L2_MPEG2_PIC_BOTTOM_FIELD && + !(pic->flags & V4L2_MPEG2_PIC_FLAG_TOP_FIELD_FIRST))) { + vdpu_write_relaxed(vpu, forward_addr, G1_REG_REFER0_BASE); + vdpu_write_relaxed(vpu, forward_addr, G1_REG_REFER1_BASE); + } else if (pic->picture_structure == V4L2_MPEG2_PIC_TOP_FIELD) { + vdpu_write_relaxed(vpu, forward_addr, G1_REG_REFER0_BASE); + vdpu_write_relaxed(vpu, current_addr, G1_REG_REFER1_BASE); + } else if (pic->picture_structure == V4L2_MPEG2_PIC_BOTTOM_FIELD) { + vdpu_write_relaxed(vpu, current_addr, G1_REG_REFER0_BASE); + vdpu_write_relaxed(vpu, forward_addr, G1_REG_REFER1_BASE); + } + + /* Set backward ref frame (top/bottom field) */ + vdpu_write_relaxed(vpu, backward_addr, G1_REG_REFER2_BASE); + vdpu_write_relaxed(vpu, backward_addr, G1_REG_REFER3_BASE); +} + +int hantro_g1_mpeg2_dec_run(struct hantro_ctx *ctx) +{ + struct hantro_dev *vpu = ctx->dev; + struct vb2_v4l2_buffer *src_buf, *dst_buf; + const struct v4l2_ctrl_mpeg2_sequence *seq; + const struct v4l2_ctrl_mpeg2_picture *pic; + u32 reg; + + src_buf = hantro_get_src_buf(ctx); + dst_buf = hantro_get_dst_buf(ctx); + + /* Apply request controls if any */ + hantro_start_prepare_run(ctx); + + seq = hantro_get_ctrl(ctx, + V4L2_CID_STATELESS_MPEG2_SEQUENCE); + pic = hantro_get_ctrl(ctx, + V4L2_CID_STATELESS_MPEG2_PICTURE); + + reg = G1_REG_DEC_AXI_RD_ID(0) | + G1_REG_DEC_TIMEOUT_E(1) | + G1_REG_DEC_STRSWAP32_E(1) | + G1_REG_DEC_STRENDIAN_E(1) | + G1_REG_DEC_INSWAP32_E(1) | + G1_REG_DEC_OUTSWAP32_E(1) | + G1_REG_DEC_DATA_DISC_E(0) | + G1_REG_DEC_LATENCY(0) | + G1_REG_DEC_CLK_GATE_E(1) | + G1_REG_DEC_IN_ENDIAN(1) | + G1_REG_DEC_OUT_ENDIAN(1) | + G1_REG_DEC_ADV_PRE_DIS(0) | + G1_REG_DEC_SCMD_DIS(0) | + G1_REG_DEC_MAX_BURST(16); + vdpu_write_relaxed(vpu, reg, G1_SWREG(2)); + + reg = G1_REG_DEC_MODE(5) | + G1_REG_RLC_MODE_E(0) | + G1_REG_PIC_INTERLACE_E(!(seq->flags & V4L2_MPEG2_SEQ_FLAG_PROGRESSIVE)) | + G1_REG_PIC_FIELDMODE_E(pic->picture_structure != V4L2_MPEG2_PIC_FRAME) | + G1_REG_PIC_B_E(pic->picture_coding_type == V4L2_MPEG2_PIC_CODING_TYPE_B) | + G1_REG_PIC_INTER_E(pic->picture_coding_type != V4L2_MPEG2_PIC_CODING_TYPE_I) | + G1_REG_PIC_TOPFIELD_E(pic->picture_structure == V4L2_MPEG2_PIC_TOP_FIELD) | + G1_REG_FWD_INTERLACE_E(0) | + G1_REG_FILTERING_DIS(1) | + G1_REG_WRITE_MVS_E(0) | + G1_REG_DEC_AXI_WR_ID(0); + vdpu_write_relaxed(vpu, reg, G1_SWREG(3)); + + reg = G1_REG_PIC_MB_WIDTH(MB_WIDTH(ctx->dst_fmt.width)) | + G1_REG_PIC_MB_HEIGHT_P(MB_HEIGHT(ctx->dst_fmt.height)) | + G1_REG_ALT_SCAN_E(pic->flags & V4L2_MPEG2_PIC_FLAG_ALT_SCAN) | + G1_REG_TOPFIELDFIRST_E(pic->flags & V4L2_MPEG2_PIC_FLAG_TOP_FIELD_FIRST); + vdpu_write_relaxed(vpu, reg, G1_SWREG(4)); + + reg = G1_REG_STRM_START_BIT(0) | + G1_REG_QSCALE_TYPE(pic->flags & V4L2_MPEG2_PIC_FLAG_Q_SCALE_TYPE) | + G1_REG_CON_MV_E(pic->flags & V4L2_MPEG2_PIC_FLAG_CONCEALMENT_MV) | + G1_REG_INTRA_DC_PREC(pic->intra_dc_precision) | + G1_REG_INTRA_VLC_TAB(pic->flags & V4L2_MPEG2_PIC_FLAG_INTRA_VLC) | + G1_REG_FRAME_PRED_DCT(pic->flags & V4L2_MPEG2_PIC_FLAG_FRAME_PRED_DCT); + vdpu_write_relaxed(vpu, reg, G1_SWREG(5)); + + reg = G1_REG_INIT_QP(1) | + G1_REG_STREAM_LEN(vb2_get_plane_payload(&src_buf->vb2_buf, 0)); + vdpu_write_relaxed(vpu, reg, G1_SWREG(6)); + + reg = G1_REG_ALT_SCAN_FLAG_E(pic->flags & V4L2_MPEG2_PIC_FLAG_ALT_SCAN) | + G1_REG_FCODE_FWD_HOR(pic->f_code[0][0]) | + G1_REG_FCODE_FWD_VER(pic->f_code[0][1]) | + G1_REG_FCODE_BWD_HOR(pic->f_code[1][0]) | + G1_REG_FCODE_BWD_VER(pic->f_code[1][1]) | + G1_REG_MV_ACCURACY_FWD(1) | + G1_REG_MV_ACCURACY_BWD(1); + vdpu_write_relaxed(vpu, reg, G1_SWREG(18)); + + reg = G1_REG_STARTMB_X(0) | + G1_REG_STARTMB_Y(0); + vdpu_write_relaxed(vpu, reg, G1_SWREG(48)); + + reg = G1_REG_APF_THRESHOLD(8); + vdpu_write_relaxed(vpu, reg, G1_SWREG(55)); + + hantro_g1_mpeg2_dec_set_quantisation(vpu, ctx); + hantro_g1_mpeg2_dec_set_buffers(vpu, ctx, &src_buf->vb2_buf, + &dst_buf->vb2_buf, + seq, pic); + + hantro_end_prepare_run(ctx); + + vdpu_write(vpu, G1_REG_INTERRUPT_DEC_E, G1_REG_INTERRUPT); + + return 0; +} |