diff options
Diffstat (limited to 'testing/linux-amlogic/0041-media-meson-vdec-add-MPEG4-decoding-support.patch')
-rw-r--r-- | testing/linux-amlogic/0041-media-meson-vdec-add-MPEG4-decoding-support.patch | 313 |
1 files changed, 313 insertions, 0 deletions
diff --git a/testing/linux-amlogic/0041-media-meson-vdec-add-MPEG4-decoding-support.patch b/testing/linux-amlogic/0041-media-meson-vdec-add-MPEG4-decoding-support.patch new file mode 100644 index 0000000000..01fd5ae030 --- /dev/null +++ b/testing/linux-amlogic/0041-media-meson-vdec-add-MPEG4-decoding-support.patch @@ -0,0 +1,313 @@ +From e222a1cf4bd62745407a9404565d76b8a5770f12 Mon Sep 17 00:00:00 2001 +From: Maxime Jourdan <mjourdan@baylibre.com> +Date: Wed, 29 Aug 2018 16:01:55 +0200 +Subject: [PATCH] media: meson: vdec: add MPEG4 decoding support + +Add support for V4L2_PIX_FMT_MPEG4, V4L2_PIX_FMT_XVID and +V4L2_PIX_FMT_H.263 + +--- + drivers/media/platform/meson/vdec/Makefile | 2 +- + drivers/media/platform/meson/vdec/codec_mpeg4.c | 139 ++++++++++++++++++++++ + drivers/media/platform/meson/vdec/codec_mpeg4.h | 13 ++ + drivers/media/platform/meson/vdec/vdec_platform.c | 91 ++++++++++++++ + 4 files changed, 244 insertions(+), 1 deletion(-) + create mode 100644 drivers/media/platform/meson/vdec/codec_mpeg4.c + create mode 100644 drivers/media/platform/meson/vdec/codec_mpeg4.h + +diff --git a/drivers/media/platform/meson/vdec/Makefile b/drivers/media/platform/meson/vdec/Makefile +index 01dc960..bb7a134 100644 +--- a/drivers/media/platform/meson/vdec/Makefile ++++ b/drivers/media/platform/meson/vdec/Makefile +@@ -3,6 +3,6 @@ + + meson-vdec-objs = esparser.o vdec.o vdec_ctrls.o vdec_helpers.o vdec_platform.o + meson-vdec-objs += vdec_1.o +-meson-vdec-objs += codec_mpeg12.o codec_h264.o ++meson-vdec-objs += codec_mpeg12.o codec_h264.o codec_mpeg4.o + + obj-$(CONFIG_VIDEO_MESON_VDEC) += meson-vdec.o +diff --git a/drivers/media/platform/meson/vdec/codec_mpeg4.c b/drivers/media/platform/meson/vdec/codec_mpeg4.c +new file mode 100644 +index 0000000..1d574e5 +--- /dev/null ++++ b/drivers/media/platform/meson/vdec/codec_mpeg4.c +@@ -0,0 +1,139 @@ ++// SPDX-License-Identifier: GPL-2.0+ ++/* ++ * Copyright (C) 2018 Maxime Jourdan <maxi.jourdan@wanadoo.fr> ++ */ ++ ++#include <media/v4l2-mem2mem.h> ++#include <media/videobuf2-dma-contig.h> ++ ++#include "vdec_helpers.h" ++#include "dos_regs.h" ++ ++#define SIZE_WORKSPACE SZ_1M ++/* Offset added by firmware, to substract from workspace paddr */ ++#define DCAC_BUFF_START_IP 0x02b00000 ++ ++/* map firmware registers to known MPEG4 functions */ ++#define MREG_BUFFERIN AV_SCRATCH_8 ++#define MREG_BUFFEROUT AV_SCRATCH_9 ++#define MP4_NOT_CODED_CNT AV_SCRATCH_A ++#define MP4_OFFSET_REG AV_SCRATCH_C ++#define MEM_OFFSET_REG AV_SCRATCH_F ++#define MREG_FATAL_ERROR AV_SCRATCH_L ++ ++#define BUF_IDX_MASK GENMASK(2, 0) ++#define INTERLACE_FLAG BIT(7) ++#define TOP_FIELD_FIRST_FLAG BIT(6) ++ ++struct codec_mpeg4 { ++ /* Buffer for the MPEG4 Workspace */ ++ void *workspace_vaddr; ++ dma_addr_t workspace_paddr; ++}; ++ ++static int codec_mpeg4_can_recycle(struct amvdec_core *core) ++{ ++ return !amvdec_read_dos(core, MREG_BUFFERIN); ++} ++ ++static void codec_mpeg4_recycle(struct amvdec_core *core, u32 buf_idx) ++{ ++ amvdec_write_dos(core, MREG_BUFFERIN, ~BIT(buf_idx)); ++} ++ ++static int codec_mpeg4_start(struct amvdec_session *sess) { ++ struct amvdec_core *core = sess->core; ++ struct codec_mpeg4 *mpeg4 = sess->priv; ++ int ret; ++ ++ mpeg4 = kzalloc(sizeof(*mpeg4), GFP_KERNEL); ++ if (!mpeg4) ++ return -ENOMEM; ++ ++ /* Allocate some memory for the MPEG4 decoder's state */ ++ mpeg4->workspace_vaddr = dma_alloc_coherent(core->dev, SIZE_WORKSPACE, ++ &mpeg4->workspace_paddr, ++ GFP_KERNEL); ++ if (!mpeg4->workspace_vaddr) { ++ dev_err(core->dev, "Failed to request MPEG4 Workspace\n"); ++ ret = -ENOMEM; ++ goto free_mpeg4; ++ } ++ ++ /* Canvas regs: AV_SCRATCH_0-AV_SCRATCH_4;AV_SCRATCH_G-AV_SCRATCH_J */ ++ amvdec_set_canvases(sess, (u32[]){ AV_SCRATCH_0, AV_SCRATCH_G, 0 }, ++ (u32[]){ 4, 4, 0 }); ++ ++ amvdec_write_dos(core, MEM_OFFSET_REG, ++ mpeg4->workspace_paddr - DCAC_BUFF_START_IP); ++ amvdec_write_dos(core, PSCALE_CTRL, 0); ++ amvdec_write_dos(core, MP4_NOT_CODED_CNT, 0); ++ amvdec_write_dos(core, MREG_BUFFERIN, 0); ++ amvdec_write_dos(core, MREG_BUFFEROUT, 0); ++ amvdec_write_dos(core, MREG_FATAL_ERROR, 0); ++ amvdec_write_dos(core, MDEC_PIC_DC_THRESH, 0x404038aa); ++ ++ sess->keyframe_found = 1; ++ sess->priv = mpeg4; ++ ++ return 0; ++ ++free_mpeg4: ++ kfree(mpeg4); ++ return ret; ++} ++ ++static int codec_mpeg4_stop(struct amvdec_session *sess) ++{ ++ struct codec_mpeg4 *mpeg4 = sess->priv; ++ struct amvdec_core *core = sess->core; ++ ++ if (mpeg4->workspace_vaddr) { ++ dma_free_coherent(core->dev, SIZE_WORKSPACE, ++ mpeg4->workspace_vaddr, ++ mpeg4->workspace_paddr); ++ mpeg4->workspace_vaddr = 0; ++ } ++ ++ return 0; ++} ++ ++static irqreturn_t codec_mpeg4_isr(struct amvdec_session *sess) ++{ ++ struct amvdec_core *core = sess->core; ++ u32 reg; ++ u32 buffer_index; ++ u32 field = V4L2_FIELD_NONE; ++ ++ reg = amvdec_read_dos(core, MREG_FATAL_ERROR); ++ if (reg == 1) { ++ dev_err(core->dev, "mpeg4 fatal error\n"); ++ amvdec_abort(sess); ++ return IRQ_HANDLED; ++ } ++ ++ reg = amvdec_read_dos(core, MREG_BUFFEROUT); ++ if (!reg) ++ goto end; ++ ++ buffer_index = reg & BUF_IDX_MASK; ++ if (reg & INTERLACE_FLAG) ++ field = (reg & TOP_FIELD_FIRST_FLAG) ? ++ V4L2_FIELD_INTERLACED_TB : ++ V4L2_FIELD_INTERLACED_BT; ++ ++ amvdec_dst_buf_done_idx(sess, buffer_index, -1, field); ++ amvdec_write_dos(core, MREG_BUFFEROUT, 0); ++ ++end: ++ amvdec_write_dos(core, ASSIST_MBOX1_CLR_REG, 1); ++ return IRQ_HANDLED; ++} ++ ++struct amvdec_codec_ops codec_mpeg4_ops = { ++ .start = codec_mpeg4_start, ++ .stop = codec_mpeg4_stop, ++ .isr = codec_mpeg4_isr, ++ .can_recycle = codec_mpeg4_can_recycle, ++ .recycle = codec_mpeg4_recycle, ++}; +diff --git a/drivers/media/platform/meson/vdec/codec_mpeg4.h b/drivers/media/platform/meson/vdec/codec_mpeg4.h +new file mode 100644 +index 0000000..b91b26413 +--- /dev/null ++++ b/drivers/media/platform/meson/vdec/codec_mpeg4.h +@@ -0,0 +1,13 @@ ++/* SPDX-License-Identifier: GPL-2.0+ */ ++/* ++ * Copyright (C) 2018 Maxime Jourdan <maxi.jourdan@wanadoo.fr> ++ */ ++ ++#ifndef __MESON_VDEC_CODEC_MPEG4_H_ ++#define __MESON_VDEC_CODEC_MPEG4_H_ ++ ++#include "vdec.h" ++ ++extern struct amvdec_codec_ops codec_mpeg4_ops; ++ ++#endif +\ No newline at end of file +diff --git a/drivers/media/platform/meson/vdec/vdec_platform.c b/drivers/media/platform/meson/vdec/vdec_platform.c +index baecf59..80b43fd 100644 +--- a/drivers/media/platform/meson/vdec/vdec_platform.c ++++ b/drivers/media/platform/meson/vdec/vdec_platform.c +@@ -10,9 +10,40 @@ + #include "vdec_1.h" + #include "codec_mpeg12.h" + #include "codec_h264.h" ++#include "codec_mpeg4.h" + + static const struct amvdec_format vdec_formats_gxbb[] = { + { ++ .pixfmt = V4L2_PIX_FMT_MPEG4, ++ .min_buffers = 8, ++ .max_buffers = 8, ++ .max_width = 1920, ++ .max_height = 1080, ++ .vdec_ops = &vdec_1_ops, ++ .codec_ops = &codec_mpeg4_ops, ++ .firmware_path = "meson/gx/vmpeg4_mc_5", ++ .pixfmts_cap = { V4L2_PIX_FMT_NV12M, V4L2_PIX_FMT_YUV420M, 0 }, ++ }, { ++ .pixfmt = V4L2_PIX_FMT_H263, ++ .min_buffers = 8, ++ .max_buffers = 8, ++ .max_width = 1920, ++ .max_height = 1080, ++ .vdec_ops = &vdec_1_ops, ++ .codec_ops = &codec_mpeg4_ops, ++ .firmware_path = "meson/gx/h263_mc", ++ .pixfmts_cap = { V4L2_PIX_FMT_NV12M, V4L2_PIX_FMT_YUV420M, 0 }, ++ }, { ++ .pixfmt = V4L2_PIX_FMT_XVID, ++ .min_buffers = 8, ++ .max_buffers = 8, ++ .max_width = 1920, ++ .max_height = 1080, ++ .vdec_ops = &vdec_1_ops, ++ .codec_ops = &codec_mpeg4_ops, ++ .firmware_path = "meson/gx/vmpeg4_mc_5", ++ .pixfmts_cap = { V4L2_PIX_FMT_NV12M, V4L2_PIX_FMT_YUV420M, 0 }, ++ }, { + .pixfmt = V4L2_PIX_FMT_H264, + .min_buffers = 2, + .max_buffers = 24, +@@ -49,6 +80,36 @@ static const struct amvdec_format vdec_formats_gxbb[] = { + + static const struct amvdec_format vdec_formats_gxl[] = { + { ++ .pixfmt = V4L2_PIX_FMT_MPEG4, ++ .min_buffers = 8, ++ .max_buffers = 8, ++ .max_width = 1920, ++ .max_height = 1080, ++ .vdec_ops = &vdec_1_ops, ++ .codec_ops = &codec_mpeg4_ops, ++ .firmware_path = "meson/gx/vmpeg4_mc_5", ++ .pixfmts_cap = { V4L2_PIX_FMT_NV12M, V4L2_PIX_FMT_YUV420M, 0 }, ++ }, { ++ .pixfmt = V4L2_PIX_FMT_H263, ++ .min_buffers = 8, ++ .max_buffers = 8, ++ .max_width = 1920, ++ .max_height = 1080, ++ .vdec_ops = &vdec_1_ops, ++ .codec_ops = &codec_mpeg4_ops, ++ .firmware_path = "meson/gx/h263_mc", ++ .pixfmts_cap = { V4L2_PIX_FMT_NV12M, V4L2_PIX_FMT_YUV420M, 0 }, ++ }, { ++ .pixfmt = V4L2_PIX_FMT_XVID, ++ .min_buffers = 8, ++ .max_buffers = 8, ++ .max_width = 1920, ++ .max_height = 1080, ++ .vdec_ops = &vdec_1_ops, ++ .codec_ops = &codec_mpeg4_ops, ++ .firmware_path = "meson/gx/vmpeg4_mc_5", ++ .pixfmts_cap = { V4L2_PIX_FMT_NV12M, V4L2_PIX_FMT_YUV420M, 0 }, ++ }, { + .pixfmt = V4L2_PIX_FMT_H264, + .min_buffers = 2, + .max_buffers = 24, +@@ -85,6 +146,36 @@ static const struct amvdec_format vdec_formats_gxl[] = { + + static const struct amvdec_format vdec_formats_gxm[] = { + { ++ .pixfmt = V4L2_PIX_FMT_MPEG4, ++ .min_buffers = 8, ++ .max_buffers = 8, ++ .max_width = 1920, ++ .max_height = 1080, ++ .vdec_ops = &vdec_1_ops, ++ .codec_ops = &codec_mpeg4_ops, ++ .firmware_path = "meson/gx/vmpeg4_mc_5", ++ .pixfmts_cap = { V4L2_PIX_FMT_NV12M, V4L2_PIX_FMT_YUV420M, 0 }, ++ }, { ++ .pixfmt = V4L2_PIX_FMT_H263, ++ .min_buffers = 8, ++ .max_buffers = 8, ++ .max_width = 1920, ++ .max_height = 1080, ++ .vdec_ops = &vdec_1_ops, ++ .codec_ops = &codec_mpeg4_ops, ++ .firmware_path = "meson/gx/h263_mc", ++ .pixfmts_cap = { V4L2_PIX_FMT_NV12M, V4L2_PIX_FMT_YUV420M, 0 }, ++ }, { ++ .pixfmt = V4L2_PIX_FMT_XVID, ++ .min_buffers = 8, ++ .max_buffers = 8, ++ .max_width = 1920, ++ .max_height = 1080, ++ .vdec_ops = &vdec_1_ops, ++ .codec_ops = &codec_mpeg4_ops, ++ .firmware_path = "meson/gx/vmpeg4_mc_5", ++ .pixfmts_cap = { V4L2_PIX_FMT_NV12M, V4L2_PIX_FMT_YUV420M, 0 }, ++ }, { + .pixfmt = V4L2_PIX_FMT_H264, + .min_buffers = 2, + .max_buffers = 24, |