@@ -8,4 +8,6 @@ rockchip-vpu-y += \
rk3288_vpu_hw_jpeg_enc.o \
rk3399_vpu_hw.o \
rk3399_vpu_hw_jpeg_enc.o \
- rockchip_vpu_jpeg.o
+ rockchip_vpu_jpeg.o \
+ rk3399_vpu_hw_mpeg2_dec.o \
+ rockchip_vpu_mpeg2.o
@@ -55,6 +55,26 @@ static const struct rockchip_vpu_fmt rk3399_vpu_enc_fmts[] = {
},
};
+static const struct rockchip_vpu_fmt rk3399_vpu_dec_fmts[] = {
+ {
+ .fourcc = V4L2_PIX_FMT_NV12,
+ .codec_mode = RK_VPU_MODE_NONE,
+ },
+ {
+ .fourcc = V4L2_PIX_FMT_MPEG2_SLICE,
+ .codec_mode = RK_VPU_MODE_MPEG2_DEC,
+ .max_depth = 2,
+ .frmsize = {
+ .min_width = 48,
+ .max_width = 1920,
+ .step_width = MPEG2_MB_DIM,
+ .min_height = 48,
+ .max_height = 1088,
+ .step_height = MPEG2_MB_DIM,
+ },
+ },
+};
+
static irqreturn_t rk3399_vepu_irq(int irq, void *dev_id)
{
struct rockchip_vpu_dev *vpu = dev_id;
@@ -108,6 +128,15 @@ static void rk3399_vpu_enc_reset(struct rockchip_vpu_ctx *ctx)
vepu_write(vpu, 0, VEPU_REG_AXI_CTRL);
}
+static void rk3399_vpu_dec_reset(struct rockchip_vpu_ctx *ctx)
+{
+ struct rockchip_vpu_dev *vpu = ctx->dev;
+
+ vdpu_write(vpu, VDPU_REG_INTERRUPT_DEC_IRQ_DIS, VDPU_REG_INTERRUPT);
+ vdpu_write(vpu, 0, VDPU_REG_EN_FLAGS);
+ vdpu_write(vpu, 1, VDPU_REG_SOFT_RESET);
+}
+
/*
* Supported codec ops.
*/
@@ -119,6 +148,12 @@ static const struct rockchip_vpu_codec_ops rk3399_vpu_codec_ops[] = {
.start = rockchip_vpu_jpeg_enc_start,
.stop = rockchip_vpu_jpeg_enc_stop,
},
+ [RK_VPU_MODE_MPEG2_DEC] = {
+ .run = rk3399_vpu_mpeg2_dec_run,
+ .reset = rk3399_vpu_dec_reset,
+ .start = rockchip_vpu_mpeg2_dec_start,
+ .stop = rockchip_vpu_mpeg2_dec_stop,
+ },
};
/*
@@ -129,7 +164,10 @@ const struct rockchip_vpu_variant rk3399_vpu_variant = {
.enc_offset = 0x0,
.enc_fmts = rk3399_vpu_enc_fmts,
.num_enc_fmts = ARRAY_SIZE(rk3399_vpu_enc_fmts),
- .codec = RK_VPU_JPEG_ENCODER,
+ .dec_offset = 0x400,
+ .dec_fmts = rk3399_vpu_dec_fmts,
+ .num_dec_fmts = ARRAY_SIZE(rk3399_vpu_dec_fmts),
+ .codec = RK_VPU_JPEG_ENCODER | RK_VPU_MPEG2_DECODER,
.codec_ops = rk3399_vpu_codec_ops,
.vepu_irq = rk3399_vepu_irq,
.vdpu_irq = rk3399_vdpu_irq,
new file mode 100644
@@ -0,0 +1,263 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Rockchip VPU codec driver
+ *
+ * Copyright (C) 2018 Rockchip Electronics Co., Ltd.
+ */
+
+#include <asm/unaligned.h>
+#include <linux/bitfield.h>
+#include <media/v4l2-mem2mem.h>
+#include "rockchip_vpu.h"
+#include "rockchip_vpu_common.h"
+#include "rockchip_vpu_hw.h"
+
+#define VDPU_SWREG(nr) ((nr) * 4)
+
+#define VDPU_REG_DEC_OUT_BASE VDPU_SWREG(63)
+#define VDPU_REG_RLC_VLC_BASE VDPU_SWREG(64)
+#define VDPU_REG_QTABLE_BASE VDPU_SWREG(61)
+#define VDPU_REG_REFER0_BASE VDPU_SWREG(131)
+#define VDPU_REG_REFER2_BASE VDPU_SWREG(134)
+#define VDPU_REG_REFER3_BASE VDPU_SWREG(135)
+#define VDPU_REG_REFER1_BASE VDPU_SWREG(148)
+#define VDPU_REG_DEC_E(v) ((v) ? BIT(0) : 0)
+
+#define VDPU_REG_DEC_ADV_PRE_DIS(v) ((v) ? BIT(11) : 0)
+#define VDPU_REG_DEC_SCMD_DIS(v) ((v) ? BIT(10) : 0)
+#define VDPU_REG_FILTERING_DIS(v) ((v) ? BIT(8) : 0)
+#define VDPU_REG_DEC_LATENCY(v) (((v) << 1) & GENMASK(6, 1))
+
+#define VDPU_REG_INIT_QP(v) (((v) << 25) & GENMASK(30, 25))
+#define VDPU_REG_STREAM_LEN(v) (((v) << 0) & GENMASK(23, 0))
+
+#define VDPU_REG_APF_THRESHOLD(v) (((v) << 17) & GENMASK(30, 17))
+#define VDPU_REG_STARTMB_X(v) (((v) << 8) & GENMASK(16, 8))
+#define VDPU_REG_STARTMB_Y(v) (((v) << 0) & GENMASK(7, 0))
+
+#define VDPU_REG_DEC_MODE(v) (((v) << 0) & GENMASK(3, 0))
+
+#define VDPU_REG_DEC_STRENDIAN_E(v) ((v) ? BIT(5) : 0)
+#define VDPU_REG_DEC_STRSWAP32_E(v) ((v) ? BIT(4) : 0)
+#define VDPU_REG_DEC_OUTSWAP32_E(v) ((v) ? BIT(3) : 0)
+#define VDPU_REG_DEC_INSWAP32_E(v) ((v) ? BIT(2) : 0)
+#define VDPU_REG_DEC_OUT_ENDIAN(v) ((v) ? BIT(1) : 0)
+#define VDPU_REG_DEC_IN_ENDIAN(v) ((v) ? BIT(0) : 0)
+
+#define VDPU_REG_DEC_DATA_DISC_E(v) ((v) ? BIT(22) : 0)
+#define VDPU_REG_DEC_MAX_BURST(v) (((v) << 16) & GENMASK(20, 16))
+#define VDPU_REG_DEC_AXI_WR_ID(v) (((v) << 8) & GENMASK(15, 8))
+#define VDPU_REG_DEC_AXI_RD_ID(v) (((v) << 0) & GENMASK(7, 0))
+
+#define VDPU_REG_RLC_MODE_E(v) ((v) ? BIT(20) : 0)
+#define VDPU_REG_PIC_INTERLACE_E(v) ((v) ? BIT(17) : 0)
+#define VDPU_REG_PIC_FIELDMODE_E(v) ((v) ? BIT(16) : 0)
+#define VDPU_REG_PIC_B_E(v) ((v) ? BIT(15) : 0)
+#define VDPU_REG_PIC_INTER_E(v) ((v) ? BIT(14) : 0)
+#define VDPU_REG_PIC_TOPFIELD_E(v) ((v) ? BIT(13) : 0)
+#define VDPU_REG_FWD_INTERLACE_E(v) ((v) ? BIT(12) : 0)
+#define VDPU_REG_WRITE_MVS_E(v) ((v) ? BIT(10) : 0)
+#define VDPU_REG_DEC_TIMEOUT_E(v) ((v) ? BIT(5) : 0)
+#define VDPU_REG_DEC_CLK_GATE_E(v) ((v) ? BIT(4) : 0)
+
+#define VDPU_REG_PIC_MB_WIDTH(v) (((v) << 23) & GENMASK(31, 23))
+#define VDPU_REG_PIC_MB_HEIGHT_P(v) (((v) << 11) & GENMASK(18, 11))
+#define VDPU_REG_ALT_SCAN_E(v) ((v) ? BIT(6) : 0)
+#define VDPU_REG_TOPFIELDFIRST_E(v) ((v) ? BIT(5) : 0)
+
+#define VDPU_REG_STRM_START_BIT(v) (((v) << 26) & GENMASK(31, 26))
+#define VDPU_REG_QSCALE_TYPE(v) ((v) ? BIT(24) : 0)
+#define VDPU_REG_CON_MV_E(v) ((v) ? BIT(4) : 0)
+#define VDPU_REG_INTRA_DC_PREC(v) (((v) << 2) & GENMASK(3, 2))
+#define VDPU_REG_INTRA_VLC_TAB(v) ((v) ? BIT(1) : 0)
+#define VDPU_REG_FRAME_PRED_DCT(v) ((v) ? BIT(0) : 0)
+
+#define VDPU_REG_ALT_SCAN_FLAG_E(v) ((v) ? BIT(19) : 0)
+#define VDPU_REG_FCODE_FWD_HOR(v) (((v) << 15) & GENMASK(18, 15))
+#define VDPU_REG_FCODE_FWD_VER(v) (((v) << 11) & GENMASK(14, 11))
+#define VDPU_REG_FCODE_BWD_HOR(v) (((v) << 7) & GENMASK(10, 7))
+#define VDPU_REG_FCODE_BWD_VER(v) (((v) << 3) & GENMASK(6, 3))
+#define VDPU_REG_MV_ACCURACY_FWD(v) ((v) ? BIT(2) : 0)
+#define VDPU_REG_MV_ACCURACY_BWD(v) ((v) ? BIT(1) : 0)
+
+#define PICT_TOP_FIELD 1
+#define PICT_BOTTOM_FIELD 2
+#define PICT_FRAME 3
+
+static void
+rk3399_vpu_mpeg2_dec_set_quantization(struct rockchip_vpu_dev *vpu,
+ struct rockchip_vpu_ctx *ctx)
+{
+ struct v4l2_ctrl_mpeg2_quantization *quantization;
+
+ quantization = rockchip_vpu_get_ctrl(ctx,
+ V4L2_CID_MPEG_VIDEO_MPEG2_QUANTIZATION);
+ rockchip_vpu_mpeg2_dec_copy_qtable(ctx->mpeg2_dec_ctx.qtable.cpu, quantization);
+ vdpu_write_relaxed(vpu, ctx->mpeg2_dec_ctx.qtable.dma, VDPU_REG_QTABLE_BASE);
+}
+
+static void rk3399_vpu_mpeg2_dec_set_buffers(struct rockchip_vpu_dev *vpu,
+ struct rockchip_vpu_ctx *ctx,
+ struct vb2_buffer *src_buf,
+ struct vb2_buffer *dst_buf,
+ const struct v4l2_mpeg2_sequence *sequence,
+ const struct v4l2_mpeg2_picture *picture,
+ const struct v4l2_ctrl_mpeg2_slice_params *slice_params)
+{
+ dma_addr_t forward_addr = 0, backward_addr = 0;
+ dma_addr_t current_addr, addr;
+ struct vb2_queue *vq;
+
+ vq = v4l2_m2m_get_dst_vq(ctx->fh.m2m_ctx);
+
+ switch (picture->picture_coding_type) {
+ case V4L2_MPEG2_PICTURE_CODING_TYPE_B:
+ backward_addr = rockchip_vpu_get_ref(vq, slice_params->backward_ref_ts);
+ /* fall-through */
+ case V4L2_MPEG2_PICTURE_CODING_TYPE_P:
+ forward_addr = rockchip_vpu_get_ref(vq, slice_params->forward_ref_ts);
+ }
+
+ /* Source bitstream buffer */
+ addr = vb2_dma_contig_plane_dma_addr(src_buf, 0);
+ vdpu_write_relaxed(vpu, addr, VDPU_REG_RLC_VLC_BASE);
+
+ /* Destination frame buffer */
+ addr = vb2_dma_contig_plane_dma_addr(dst_buf, 0);
+ current_addr = addr;
+
+ if (picture->picture_structure == PICT_BOTTOM_FIELD)
+ addr += DIV_ROUND_UP(sequence->horizontal_size, 16) << 4;
+ vdpu_write_relaxed(vpu, addr, VDPU_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 (picture->picture_structure == PICT_FRAME ||
+ picture->picture_coding_type == V4L2_MPEG2_PICTURE_CODING_TYPE_B ||
+ (picture->picture_structure == PICT_TOP_FIELD && picture->top_field_first) ||
+ (picture->picture_structure == PICT_BOTTOM_FIELD && !picture->top_field_first)) {
+ vdpu_write_relaxed(vpu, forward_addr, VDPU_REG_REFER0_BASE);
+ vdpu_write_relaxed(vpu, forward_addr, VDPU_REG_REFER1_BASE);
+ } else if (picture->picture_structure == PICT_TOP_FIELD) {
+ vdpu_write_relaxed(vpu, forward_addr, VDPU_REG_REFER0_BASE);
+ vdpu_write_relaxed(vpu, current_addr, VDPU_REG_REFER1_BASE);
+ } else if (picture->picture_structure == PICT_BOTTOM_FIELD) {
+ vdpu_write_relaxed(vpu, current_addr, VDPU_REG_REFER0_BASE);
+ vdpu_write_relaxed(vpu, forward_addr, VDPU_REG_REFER1_BASE);
+ }
+
+ /* Set backward ref frame (top/bottom field) */
+ vdpu_write_relaxed(vpu, backward_addr, VDPU_REG_REFER2_BASE);
+ vdpu_write_relaxed(vpu, backward_addr, VDPU_REG_REFER3_BASE);
+}
+
+void rk3399_vpu_mpeg2_dec_run(struct rockchip_vpu_ctx *ctx)
+{
+ struct rockchip_vpu_dev *vpu = ctx->dev;
+ struct vb2_v4l2_buffer *src_buf, *dst_buf;
+ const struct v4l2_ctrl_mpeg2_slice_params *slice_params;
+ const struct v4l2_mpeg2_sequence *sequence;
+ const struct v4l2_mpeg2_picture *picture;
+ u32 reg;
+
+ src_buf = v4l2_m2m_next_src_buf(ctx->fh.m2m_ctx);
+ dst_buf = v4l2_m2m_next_dst_buf(ctx->fh.m2m_ctx);
+
+ /* Apply request controls if any */
+ v4l2_ctrl_request_setup(src_buf->vb2_buf.req_obj.req,
+ &ctx->ctrl_handler);
+
+ slice_params = rockchip_vpu_get_ctrl(ctx,
+ V4L2_CID_MPEG_VIDEO_MPEG2_SLICE_PARAMS);
+ if (!slice_params)
+ return;
+ sequence = &slice_params->sequence;
+ picture = &slice_params->picture;
+
+ reg = VDPU_REG_DEC_ADV_PRE_DIS(0) |
+ VDPU_REG_DEC_SCMD_DIS(0) |
+ VDPU_REG_FILTERING_DIS(1) |
+ VDPU_REG_DEC_LATENCY(0);
+ vdpu_write_relaxed(vpu, reg, VDPU_SWREG(50));
+
+ reg = VDPU_REG_INIT_QP(1) |
+ VDPU_REG_STREAM_LEN(slice_params->bit_size >> 3);
+ vdpu_write_relaxed(vpu, reg, VDPU_SWREG(51));
+
+ reg = VDPU_REG_APF_THRESHOLD(8) |
+ VDPU_REG_STARTMB_X(0) |
+ VDPU_REG_STARTMB_Y(0);
+ vdpu_write_relaxed(vpu, reg, VDPU_SWREG(52));
+
+ reg = VDPU_REG_DEC_MODE(5);
+ vdpu_write_relaxed(vpu, reg, VDPU_SWREG(53));
+
+ reg = VDPU_REG_DEC_STRENDIAN_E(1) |
+ VDPU_REG_DEC_STRSWAP32_E(1) |
+ VDPU_REG_DEC_OUTSWAP32_E(1) |
+ VDPU_REG_DEC_INSWAP32_E(1) |
+ VDPU_REG_DEC_OUT_ENDIAN(1) |
+ VDPU_REG_DEC_IN_ENDIAN(1);
+ vdpu_write_relaxed(vpu, reg, VDPU_SWREG(54));
+
+ reg = VDPU_REG_DEC_DATA_DISC_E(0) |
+ VDPU_REG_DEC_MAX_BURST(16) |
+ VDPU_REG_DEC_AXI_WR_ID(0) |
+ VDPU_REG_DEC_AXI_RD_ID(0);
+ vdpu_write_relaxed(vpu, reg, VDPU_SWREG(56));
+
+ reg = VDPU_REG_RLC_MODE_E(0) |
+ VDPU_REG_PIC_INTERLACE_E(!sequence->progressive_sequence) |
+ VDPU_REG_PIC_FIELDMODE_E(picture->picture_structure != PICT_FRAME) |
+ VDPU_REG_PIC_B_E(picture->picture_coding_type == V4L2_MPEG2_PICTURE_CODING_TYPE_B) |
+ VDPU_REG_PIC_INTER_E(picture->picture_coding_type != V4L2_MPEG2_PICTURE_CODING_TYPE_I) |
+ VDPU_REG_PIC_TOPFIELD_E(picture->picture_structure == PICT_TOP_FIELD) |
+ VDPU_REG_FWD_INTERLACE_E(0) |
+ VDPU_REG_WRITE_MVS_E(0) |
+ VDPU_REG_DEC_TIMEOUT_E(1) |
+ VDPU_REG_DEC_CLK_GATE_E(1);
+ vdpu_write_relaxed(vpu, reg, VDPU_SWREG(57));
+
+ reg = VDPU_REG_PIC_MB_WIDTH(DIV_ROUND_UP(sequence->horizontal_size, 16)) |
+ VDPU_REG_PIC_MB_HEIGHT_P(DIV_ROUND_UP(sequence->vertical_size, 16)) |
+ VDPU_REG_ALT_SCAN_E(picture->alternate_scan) |
+ VDPU_REG_TOPFIELDFIRST_E(picture->top_field_first);
+ vdpu_write_relaxed(vpu, reg, VDPU_SWREG(120));
+
+ reg = VDPU_REG_STRM_START_BIT(slice_params->data_bit_offset) |
+ VDPU_REG_QSCALE_TYPE(picture->q_scale_type) |
+ VDPU_REG_CON_MV_E(picture->concealment_motion_vectors) |
+ VDPU_REG_INTRA_DC_PREC(picture->intra_dc_precision) |
+ VDPU_REG_INTRA_VLC_TAB(picture->intra_vlc_format) |
+ VDPU_REG_FRAME_PRED_DCT(picture->frame_pred_frame_dct);
+ vdpu_write_relaxed(vpu, reg, VDPU_SWREG(122));
+
+ reg = VDPU_REG_ALT_SCAN_FLAG_E(picture->alternate_scan) |
+ VDPU_REG_FCODE_FWD_HOR(picture->f_code[0][0]) |
+ VDPU_REG_FCODE_FWD_VER(picture->f_code[0][1]) |
+ VDPU_REG_FCODE_BWD_HOR(picture->f_code[1][0]) |
+ VDPU_REG_FCODE_BWD_VER(picture->f_code[1][1]) |
+ VDPU_REG_MV_ACCURACY_FWD(1) |
+ VDPU_REG_MV_ACCURACY_BWD(1);
+ vdpu_write_relaxed(vpu, reg, VDPU_SWREG(136));
+
+ rk3399_vpu_mpeg2_dec_set_quantization(vpu, ctx);
+
+ rk3399_vpu_mpeg2_dec_set_buffers(vpu, ctx, &src_buf->vb2_buf,
+ &dst_buf->vb2_buf,
+ sequence, picture, slice_params);
+
+ /* Controls no longer in-use, we can complete them */
+ v4l2_ctrl_request_complete(src_buf->vb2_buf.req_obj.req,
+ &ctx->ctrl_handler);
+
+ /* Kick the watchdog and start decoding */
+ schedule_delayed_work(&vpu->watchdog_work, msecs_to_jiffies(2000));
+
+ reg = vdpu_read(vpu, VDPU_SWREG(57)) | VDPU_REG_DEC_E(1);
+ vdpu_write(vpu, reg, VDPU_SWREG(57));
+}
@@ -28,6 +28,10 @@
#define ROCKCHIP_VPU_MAX_CTRLS 32
#define ROCKCHIP_VPU_MAX_CLOCKS 4
+#define MPEG2_MB_DIM 16
+#define MPEG2_MB_WIDTH(w) DIV_ROUND_UP(w, MPEG2_MB_DIM)
+#define MPEG2_MB_HEIGHT(h) DIV_ROUND_UP(h, MPEG2_MB_DIM)
+
#define JPEG_MB_DIM 16
#define JPEG_MB_WIDTH(w) DIV_ROUND_UP(w, JPEG_MB_DIM)
#define JPEG_MB_HEIGHT(h) DIV_ROUND_UP(h, JPEG_MB_DIM)
@@ -38,6 +42,7 @@ struct rockchip_vpu_codec_ops;
#define RK_VPU_JPEG_ENCODER BIT(0)
#define RK_VPU_ENCODERS 0x0000ffff
+#define RK_VPU_MPEG2_DECODER BIT(16)
#define RK_VPU_DECODERS 0xffff0000
/**
@@ -77,10 +82,12 @@ struct rockchip_vpu_variant {
* enum rockchip_vpu_codec_mode - codec operating mode.
* @RK_VPU_MODE_NONE: No operating mode. Used for RAW video formats.
* @RK_VPU_MODE_JPEG_ENC: JPEG encoder.
+ * @RK_VPU_MODE_MPEG2_DEC: MPEG-2 decoder.
*/
enum rockchip_vpu_codec_mode {
RK_VPU_MODE_NONE = -1,
RK_VPU_MODE_JPEG_ENC,
+ RK_VPU_MODE_MPEG2_DEC,
};
/*
@@ -193,6 +200,7 @@ struct rockchip_vpu_dev {
*
* @codec_ops: Set of operations related to codec mode.
* @jpeg_enc_ctx: JPEG-encoding context.
+ * @mpeg2_dec_ctx: MPEG-2-decoding context.
*/
struct rockchip_vpu_ctx {
struct rockchip_vpu_dev *dev;
@@ -217,6 +225,7 @@ struct rockchip_vpu_ctx {
/* Specific for particular codec modes. */
union {
struct rockchip_vpu_jpeg_enc_hw_ctx jpeg_enc_ctx;
+ struct rockchip_vpu_mpeg2_dec_hw_ctx mpeg2_dec_ctx;
};
};
@@ -300,6 +300,18 @@ static struct rockchip_vpu_ctrl controls[] = {
.step = 1,
.def = 50,
},
+ }, {
+ .id = V4L2_CID_MPEG_VIDEO_MPEG2_SLICE_PARAMS,
+ .codec = RK_VPU_MPEG2_DECODER,
+ .cfg = {
+ .elem_size = sizeof(struct v4l2_ctrl_mpeg2_slice_params),
+ },
+ }, {
+ .id = V4L2_CID_MPEG_VIDEO_MPEG2_QUANTIZATION,
+ .codec = RK_VPU_MPEG2_DECODER,
+ .cfg = {
+ .elem_size = sizeof(struct v4l2_ctrl_mpeg2_quantization),
+ },
},
};
@@ -38,6 +38,14 @@ struct rockchip_vpu_jpeg_enc_hw_ctx {
struct rockchip_vpu_aux_buf bounce_buffer;
};
+/**
+ * struct rockchip_vpu_mpeg2_dec_hw_ctx
+ * @qtable: Quantization table
+ */
+struct rockchip_vpu_mpeg2_dec_hw_ctx {
+ struct rockchip_vpu_aux_buf qtable;
+};
+
/**
* struct rockchip_vpu_codec_ops - codec mode specific operations
*
@@ -83,4 +91,10 @@ void rk3399_vpu_jpeg_enc_run(struct rockchip_vpu_ctx *ctx);
int rockchip_vpu_jpeg_enc_start(struct rockchip_vpu_ctx *ctx);
void rockchip_vpu_jpeg_enc_stop(struct rockchip_vpu_ctx *ctx);
+void rk3399_vpu_mpeg2_dec_run(struct rockchip_vpu_ctx *ctx);
+void rockchip_vpu_mpeg2_dec_copy_qtable(u8 *qtable,
+ const struct v4l2_ctrl_mpeg2_quantization *ctrl);
+int rockchip_vpu_mpeg2_dec_start(struct rockchip_vpu_ctx *ctx);
+void rockchip_vpu_mpeg2_dec_stop(struct rockchip_vpu_ctx *ctx);
+
#endif /* ROCKCHIP_VPU_HW_H_ */
new file mode 100644
@@ -0,0 +1,61 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Rockchip VPU codec driver
+ *
+ * Copyright (C) 2018 Rockchip Electronics Co., Ltd.
+ */
+
+#include "rockchip_vpu.h"
+
+static const u8 zigzag[64] = {
+ 0, 1, 8, 16, 9, 2, 3, 10,
+ 17, 24, 32, 25, 18, 11, 4, 5,
+ 12, 19, 26, 33, 40, 48, 41, 34,
+ 27, 20, 13, 6, 7, 14, 21, 28,
+ 35, 42, 49, 56, 57, 50, 43, 36,
+ 29, 22, 15, 23, 30, 37, 44, 51,
+ 58, 59, 52, 45, 38, 31, 39, 46,
+ 53, 60, 61, 54, 47, 55, 62, 63
+};
+
+void rockchip_vpu_mpeg2_dec_copy_qtable(u8 *qtable,
+ const struct v4l2_ctrl_mpeg2_quantization *ctrl)
+{
+ int i, n;
+
+ if (!qtable || !ctrl)
+ return;
+
+ for (i = 0; i < ARRAY_SIZE(zigzag); i++) {
+ n = zigzag[i];
+ qtable[n + 0] = ctrl->intra_quantiser_matrix[i];
+ qtable[n + 64] = ctrl->non_intra_quantiser_matrix[i];
+ qtable[n + 128] = ctrl->chroma_intra_quantiser_matrix[i];
+ qtable[n + 192] = ctrl->chroma_non_intra_quantiser_matrix[i];
+ }
+}
+
+int rockchip_vpu_mpeg2_dec_start(struct rockchip_vpu_ctx *ctx)
+{
+ struct rockchip_vpu_dev *vpu = ctx->dev;
+
+ ctx->mpeg2_dec_ctx.qtable.size = ARRAY_SIZE(zigzag) * 4;
+ ctx->mpeg2_dec_ctx.qtable.cpu =
+ dma_alloc_coherent(vpu->dev,
+ ctx->mpeg2_dec_ctx.qtable.size,
+ &ctx->mpeg2_dec_ctx.qtable.dma,
+ GFP_KERNEL);
+ if (!ctx->mpeg2_dec_ctx.qtable.cpu)
+ return -ENOMEM;
+ return 0;
+}
+
+void rockchip_vpu_mpeg2_dec_stop(struct rockchip_vpu_ctx *ctx)
+{
+ struct rockchip_vpu_dev *vpu = ctx->dev;
+
+ dma_free_coherent(vpu->dev,
+ ctx->mpeg2_dec_ctx.qtable.size,
+ ctx->mpeg2_dec_ctx.qtable.cpu,
+ ctx->mpeg2_dec_ctx.qtable.dma);
+}