| /* linux/drivers/media/platform/s5p-jpeg/jpeg-core.c |
| * |
| * Copyright (c) 2011-2014 Samsung Electronics Co., Ltd. |
| * http://www.samsung.com |
| * |
| * Author: Andrzej Pietrasiewicz <andrzej.p@samsung.com> |
| * Author: Jacek Anaszewski <j.anaszewski@samsung.com> |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License version 2 as |
| * published by the Free Software Foundation. |
| */ |
| |
| #include <linux/clk.h> |
| #include <linux/err.h> |
| #include <linux/gfp.h> |
| #include <linux/interrupt.h> |
| #include <linux/io.h> |
| #include <linux/kernel.h> |
| #include <linux/module.h> |
| #include <linux/of.h> |
| #include <linux/platform_device.h> |
| #include <linux/pm_runtime.h> |
| #include <linux/slab.h> |
| #include <linux/spinlock.h> |
| #include <linux/string.h> |
| #include <media/v4l2-event.h> |
| #include <media/v4l2-mem2mem.h> |
| #include <media/v4l2-ioctl.h> |
| #include <media/videobuf2-v4l2.h> |
| #include <media/videobuf2-dma-contig.h> |
| |
| #include "jpeg-core.h" |
| #include "jpeg-hw-s5p.h" |
| #include "jpeg-hw-exynos4.h" |
| #include "jpeg-hw-exynos3250.h" |
| #include "jpeg-regs.h" |
| |
| static struct s5p_jpeg_fmt sjpeg_formats[] = { |
| { |
| .name = "JPEG JFIF", |
| .fourcc = V4L2_PIX_FMT_JPEG, |
| .flags = SJPEG_FMT_FLAG_ENC_CAPTURE | |
| SJPEG_FMT_FLAG_DEC_OUTPUT | |
| SJPEG_FMT_FLAG_S5P | |
| SJPEG_FMT_FLAG_EXYNOS3250 | |
| SJPEG_FMT_FLAG_EXYNOS4, |
| }, |
| { |
| .name = "YUV 4:2:2 packed, YCbYCr", |
| .fourcc = V4L2_PIX_FMT_YUYV, |
| .depth = 16, |
| .colplanes = 1, |
| .h_align = 4, |
| .v_align = 3, |
| .flags = SJPEG_FMT_FLAG_ENC_OUTPUT | |
| SJPEG_FMT_FLAG_DEC_CAPTURE | |
| SJPEG_FMT_FLAG_S5P | |
| SJPEG_FMT_NON_RGB, |
| .subsampling = V4L2_JPEG_CHROMA_SUBSAMPLING_422, |
| }, |
| { |
| .name = "YUV 4:2:2 packed, YCbYCr", |
| .fourcc = V4L2_PIX_FMT_YUYV, |
| .depth = 16, |
| .colplanes = 1, |
| .h_align = 1, |
| .v_align = 0, |
| .flags = SJPEG_FMT_FLAG_ENC_OUTPUT | |
| SJPEG_FMT_FLAG_DEC_CAPTURE | |
| SJPEG_FMT_FLAG_EXYNOS4 | |
| SJPEG_FMT_NON_RGB, |
| .subsampling = V4L2_JPEG_CHROMA_SUBSAMPLING_422, |
| }, |
| { |
| .name = "YUV 4:2:2 packed, YCbYCr", |
| .fourcc = V4L2_PIX_FMT_YUYV, |
| .depth = 16, |
| .colplanes = 1, |
| .h_align = 2, |
| .v_align = 0, |
| .flags = SJPEG_FMT_FLAG_ENC_OUTPUT | |
| SJPEG_FMT_FLAG_DEC_CAPTURE | |
| SJPEG_FMT_FLAG_EXYNOS3250 | |
| SJPEG_FMT_NON_RGB, |
| .subsampling = V4L2_JPEG_CHROMA_SUBSAMPLING_422, |
| }, |
| { |
| .name = "YUV 4:2:2 packed, YCrYCb", |
| .fourcc = V4L2_PIX_FMT_YVYU, |
| .depth = 16, |
| .colplanes = 1, |
| .h_align = 1, |
| .v_align = 0, |
| .flags = SJPEG_FMT_FLAG_ENC_OUTPUT | |
| SJPEG_FMT_FLAG_DEC_CAPTURE | |
| SJPEG_FMT_FLAG_EXYNOS4 | |
| SJPEG_FMT_NON_RGB, |
| .subsampling = V4L2_JPEG_CHROMA_SUBSAMPLING_422, |
| }, |
| { |
| .name = "YUV 4:2:2 packed, YCrYCb", |
| .fourcc = V4L2_PIX_FMT_YVYU, |
| .depth = 16, |
| .colplanes = 1, |
| .h_align = 2, |
| .v_align = 0, |
| .flags = SJPEG_FMT_FLAG_ENC_OUTPUT | |
| SJPEG_FMT_FLAG_DEC_CAPTURE | |
| SJPEG_FMT_FLAG_EXYNOS3250 | |
| SJPEG_FMT_NON_RGB, |
| .subsampling = V4L2_JPEG_CHROMA_SUBSAMPLING_422, |
| }, |
| { |
| .name = "YUV 4:2:2 packed, YCrYCb", |
| .fourcc = V4L2_PIX_FMT_UYVY, |
| .depth = 16, |
| .colplanes = 1, |
| .h_align = 2, |
| .v_align = 0, |
| .flags = SJPEG_FMT_FLAG_ENC_OUTPUT | |
| SJPEG_FMT_FLAG_DEC_CAPTURE | |
| SJPEG_FMT_FLAG_EXYNOS3250 | |
| SJPEG_FMT_NON_RGB, |
| .subsampling = V4L2_JPEG_CHROMA_SUBSAMPLING_422, |
| }, |
| { |
| .name = "YUV 4:2:2 packed, YCrYCb", |
| .fourcc = V4L2_PIX_FMT_VYUY, |
| .depth = 16, |
| .colplanes = 1, |
| .h_align = 2, |
| .v_align = 0, |
| .flags = SJPEG_FMT_FLAG_ENC_OUTPUT | |
| SJPEG_FMT_FLAG_DEC_CAPTURE | |
| SJPEG_FMT_FLAG_EXYNOS3250 | |
| SJPEG_FMT_NON_RGB, |
| .subsampling = V4L2_JPEG_CHROMA_SUBSAMPLING_422, |
| }, |
| { |
| .name = "RGB565", |
| .fourcc = V4L2_PIX_FMT_RGB565, |
| .depth = 16, |
| .colplanes = 1, |
| .h_align = 0, |
| .v_align = 0, |
| .flags = SJPEG_FMT_FLAG_ENC_OUTPUT | |
| SJPEG_FMT_FLAG_DEC_CAPTURE | |
| SJPEG_FMT_FLAG_EXYNOS4 | |
| SJPEG_FMT_RGB, |
| .subsampling = V4L2_JPEG_CHROMA_SUBSAMPLING_444, |
| }, |
| { |
| .name = "RGB565", |
| .fourcc = V4L2_PIX_FMT_RGB565, |
| .depth = 16, |
| .colplanes = 1, |
| .h_align = 2, |
| .v_align = 0, |
| .flags = SJPEG_FMT_FLAG_ENC_OUTPUT | |
| SJPEG_FMT_FLAG_DEC_CAPTURE | |
| SJPEG_FMT_FLAG_EXYNOS3250 | |
| SJPEG_FMT_RGB, |
| .subsampling = V4L2_JPEG_CHROMA_SUBSAMPLING_444, |
| }, |
| { |
| .name = "RGB565X", |
| .fourcc = V4L2_PIX_FMT_RGB565X, |
| .depth = 16, |
| .colplanes = 1, |
| .h_align = 2, |
| .v_align = 0, |
| .flags = SJPEG_FMT_FLAG_ENC_OUTPUT | |
| SJPEG_FMT_FLAG_DEC_CAPTURE | |
| SJPEG_FMT_FLAG_EXYNOS3250 | |
| SJPEG_FMT_RGB, |
| .subsampling = V4L2_JPEG_CHROMA_SUBSAMPLING_444, |
| }, |
| { |
| .name = "RGB565", |
| .fourcc = V4L2_PIX_FMT_RGB565, |
| .depth = 16, |
| .colplanes = 1, |
| .h_align = 0, |
| .v_align = 0, |
| .flags = SJPEG_FMT_FLAG_ENC_OUTPUT | |
| SJPEG_FMT_FLAG_S5P | |
| SJPEG_FMT_RGB, |
| .subsampling = V4L2_JPEG_CHROMA_SUBSAMPLING_444, |
| }, |
| { |
| .name = "ARGB8888, 32 bpp", |
| .fourcc = V4L2_PIX_FMT_RGB32, |
| .depth = 32, |
| .colplanes = 1, |
| .h_align = 0, |
| .v_align = 0, |
| .flags = SJPEG_FMT_FLAG_ENC_OUTPUT | |
| SJPEG_FMT_FLAG_DEC_CAPTURE | |
| SJPEG_FMT_FLAG_EXYNOS4 | |
| SJPEG_FMT_RGB, |
| .subsampling = V4L2_JPEG_CHROMA_SUBSAMPLING_444, |
| }, |
| { |
| .name = "ARGB8888, 32 bpp", |
| .fourcc = V4L2_PIX_FMT_RGB32, |
| .depth = 32, |
| .colplanes = 1, |
| .h_align = 2, |
| .v_align = 0, |
| .flags = SJPEG_FMT_FLAG_ENC_OUTPUT | |
| SJPEG_FMT_FLAG_DEC_CAPTURE | |
| SJPEG_FMT_FLAG_EXYNOS3250 | |
| SJPEG_FMT_RGB, |
| .subsampling = V4L2_JPEG_CHROMA_SUBSAMPLING_444, |
| }, |
| { |
| .name = "YUV 4:4:4 planar, Y/CbCr", |
| .fourcc = V4L2_PIX_FMT_NV24, |
| .depth = 24, |
| .colplanes = 2, |
| .h_align = 0, |
| .v_align = 0, |
| .flags = SJPEG_FMT_FLAG_ENC_OUTPUT | |
| SJPEG_FMT_FLAG_DEC_CAPTURE | |
| SJPEG_FMT_FLAG_EXYNOS4 | |
| SJPEG_FMT_NON_RGB, |
| .subsampling = V4L2_JPEG_CHROMA_SUBSAMPLING_444, |
| }, |
| { |
| .name = "YUV 4:4:4 planar, Y/CrCb", |
| .fourcc = V4L2_PIX_FMT_NV42, |
| .depth = 24, |
| .colplanes = 2, |
| .h_align = 0, |
| .v_align = 0, |
| .flags = SJPEG_FMT_FLAG_ENC_OUTPUT | |
| SJPEG_FMT_FLAG_DEC_CAPTURE | |
| SJPEG_FMT_FLAG_EXYNOS4 | |
| SJPEG_FMT_NON_RGB, |
| .subsampling = V4L2_JPEG_CHROMA_SUBSAMPLING_444, |
| }, |
| { |
| .name = "YUV 4:2:2 planar, Y/CrCb", |
| .fourcc = V4L2_PIX_FMT_NV61, |
| .depth = 16, |
| .colplanes = 2, |
| .h_align = 1, |
| .v_align = 0, |
| .flags = SJPEG_FMT_FLAG_ENC_OUTPUT | |
| SJPEG_FMT_FLAG_DEC_CAPTURE | |
| SJPEG_FMT_FLAG_EXYNOS4 | |
| SJPEG_FMT_NON_RGB, |
| .subsampling = V4L2_JPEG_CHROMA_SUBSAMPLING_422, |
| }, |
| { |
| .name = "YUV 4:2:2 planar, Y/CbCr", |
| .fourcc = V4L2_PIX_FMT_NV16, |
| .depth = 16, |
| .colplanes = 2, |
| .h_align = 1, |
| .v_align = 0, |
| .flags = SJPEG_FMT_FLAG_ENC_OUTPUT | |
| SJPEG_FMT_FLAG_DEC_CAPTURE | |
| SJPEG_FMT_FLAG_EXYNOS4 | |
| SJPEG_FMT_NON_RGB, |
| .subsampling = V4L2_JPEG_CHROMA_SUBSAMPLING_422, |
| }, |
| { |
| .name = "YUV 4:2:0 planar, Y/CbCr", |
| .fourcc = V4L2_PIX_FMT_NV12, |
| .depth = 12, |
| .colplanes = 2, |
| .h_align = 1, |
| .v_align = 1, |
| .flags = SJPEG_FMT_FLAG_ENC_OUTPUT | |
| SJPEG_FMT_FLAG_DEC_CAPTURE | |
| SJPEG_FMT_FLAG_EXYNOS4 | |
| SJPEG_FMT_NON_RGB, |
| .subsampling = V4L2_JPEG_CHROMA_SUBSAMPLING_420, |
| }, |
| { |
| .name = "YUV 4:2:0 planar, Y/CbCr", |
| .fourcc = V4L2_PIX_FMT_NV12, |
| .depth = 12, |
| .colplanes = 2, |
| .h_align = 3, |
| .v_align = 3, |
| .flags = SJPEG_FMT_FLAG_ENC_OUTPUT | |
| SJPEG_FMT_FLAG_DEC_CAPTURE | |
| SJPEG_FMT_FLAG_EXYNOS3250 | |
| SJPEG_FMT_NON_RGB, |
| .subsampling = V4L2_JPEG_CHROMA_SUBSAMPLING_420, |
| }, |
| { |
| .name = "YUV 4:2:0 planar, Y/CbCr", |
| .fourcc = V4L2_PIX_FMT_NV12, |
| .depth = 12, |
| .colplanes = 2, |
| .h_align = 4, |
| .v_align = 4, |
| .flags = SJPEG_FMT_FLAG_ENC_OUTPUT | |
| SJPEG_FMT_FLAG_DEC_CAPTURE | |
| SJPEG_FMT_FLAG_S5P | |
| SJPEG_FMT_NON_RGB, |
| .subsampling = V4L2_JPEG_CHROMA_SUBSAMPLING_420, |
| }, |
| { |
| .name = "YUV 4:2:0 planar, Y/CrCb", |
| .fourcc = V4L2_PIX_FMT_NV21, |
| .depth = 12, |
| .colplanes = 2, |
| .h_align = 3, |
| .v_align = 3, |
| .flags = SJPEG_FMT_FLAG_ENC_OUTPUT | |
| SJPEG_FMT_FLAG_DEC_CAPTURE | |
| SJPEG_FMT_FLAG_EXYNOS3250 | |
| SJPEG_FMT_NON_RGB, |
| .subsampling = V4L2_JPEG_CHROMA_SUBSAMPLING_420, |
| }, |
| { |
| .name = "YUV 4:2:0 planar, Y/CrCb", |
| .fourcc = V4L2_PIX_FMT_NV21, |
| .depth = 12, |
| .colplanes = 2, |
| .h_align = 1, |
| .v_align = 1, |
| .flags = SJPEG_FMT_FLAG_ENC_OUTPUT | |
| SJPEG_FMT_FLAG_DEC_CAPTURE | |
| SJPEG_FMT_FLAG_EXYNOS3250 | |
| SJPEG_FMT_FLAG_EXYNOS4 | |
| SJPEG_FMT_NON_RGB, |
| .subsampling = V4L2_JPEG_CHROMA_SUBSAMPLING_420, |
| }, |
| { |
| .name = "YUV 4:2:0 contiguous 3-planar, Y/Cb/Cr", |
| .fourcc = V4L2_PIX_FMT_YUV420, |
| .depth = 12, |
| .colplanes = 3, |
| .h_align = 1, |
| .v_align = 1, |
| .flags = SJPEG_FMT_FLAG_ENC_OUTPUT | |
| SJPEG_FMT_FLAG_DEC_CAPTURE | |
| SJPEG_FMT_FLAG_EXYNOS4 | |
| SJPEG_FMT_NON_RGB, |
| .subsampling = V4L2_JPEG_CHROMA_SUBSAMPLING_420, |
| }, |
| { |
| .name = "YUV 4:2:0 contiguous 3-planar, Y/Cb/Cr", |
| .fourcc = V4L2_PIX_FMT_YUV420, |
| .depth = 12, |
| .colplanes = 3, |
| .h_align = 4, |
| .v_align = 4, |
| .flags = SJPEG_FMT_FLAG_ENC_OUTPUT | |
| SJPEG_FMT_FLAG_DEC_CAPTURE | |
| SJPEG_FMT_FLAG_EXYNOS3250 | |
| SJPEG_FMT_NON_RGB, |
| .subsampling = V4L2_JPEG_CHROMA_SUBSAMPLING_420, |
| }, |
| { |
| .name = "Gray", |
| .fourcc = V4L2_PIX_FMT_GREY, |
| .depth = 8, |
| .colplanes = 1, |
| .flags = SJPEG_FMT_FLAG_ENC_OUTPUT | |
| SJPEG_FMT_FLAG_DEC_CAPTURE | |
| SJPEG_FMT_FLAG_EXYNOS4 | |
| SJPEG_FMT_NON_RGB, |
| .subsampling = V4L2_JPEG_CHROMA_SUBSAMPLING_GRAY, |
| }, |
| }; |
| #define SJPEG_NUM_FORMATS ARRAY_SIZE(sjpeg_formats) |
| |
| static const unsigned char qtbl_luminance[4][64] = { |
| {/*level 0 - high compression quality */ |
| 20, 16, 25, 39, 50, 46, 62, 68, |
| 16, 18, 23, 38, 38, 53, 65, 68, |
| 25, 23, 31, 38, 53, 65, 68, 68, |
| 39, 38, 38, 53, 65, 68, 68, 68, |
| 50, 38, 53, 65, 68, 68, 68, 68, |
| 46, 53, 65, 68, 68, 68, 68, 68, |
| 62, 65, 68, 68, 68, 68, 68, 68, |
| 68, 68, 68, 68, 68, 68, 68, 68 |
| }, |
| {/* level 1 */ |
| 16, 11, 11, 16, 23, 27, 31, 30, |
| 11, 12, 12, 15, 20, 23, 23, 30, |
| 11, 12, 13, 16, 23, 26, 35, 47, |
| 16, 15, 16, 23, 26, 37, 47, 64, |
| 23, 20, 23, 26, 39, 51, 64, 64, |
| 27, 23, 26, 37, 51, 64, 64, 64, |
| 31, 23, 35, 47, 64, 64, 64, 64, |
| 30, 30, 47, 64, 64, 64, 64, 64 |
| }, |
| {/* level 2 */ |
| 12, 8, 8, 12, 17, 21, 24, 23, |
| 8, 9, 9, 11, 15, 19, 18, 23, |
| 8, 9, 10, 12, 19, 20, 27, 36, |
| 12, 11, 12, 21, 20, 28, 36, 53, |
| 17, 15, 19, 20, 30, 39, 51, 59, |
| 21, 19, 20, 28, 39, 51, 59, 59, |
| 24, 18, 27, 36, 51, 59, 59, 59, |
| 23, 23, 36, 53, 59, 59, 59, 59 |
| }, |
| {/* level 3 - low compression quality */ |
| 8, 6, 6, 8, 12, 14, 16, 17, |
| 6, 6, 6, 8, 10, 13, 12, 15, |
| 6, 6, 7, 8, 13, 14, 18, 24, |
| 8, 8, 8, 14, 13, 19, 24, 35, |
| 12, 10, 13, 13, 20, 26, 34, 39, |
| 14, 13, 14, 19, 26, 34, 39, 39, |
| 16, 12, 18, 24, 34, 39, 39, 39, |
| 17, 15, 24, 35, 39, 39, 39, 39 |
| } |
| }; |
| |
| static const unsigned char qtbl_chrominance[4][64] = { |
| {/*level 0 - high compression quality */ |
| 21, 25, 32, 38, 54, 68, 68, 68, |
| 25, 28, 24, 38, 54, 68, 68, 68, |
| 32, 24, 32, 43, 66, 68, 68, 68, |
| 38, 38, 43, 53, 68, 68, 68, 68, |
| 54, 54, 66, 68, 68, 68, 68, 68, |
| 68, 68, 68, 68, 68, 68, 68, 68, |
| 68, 68, 68, 68, 68, 68, 68, 68, |
| 68, 68, 68, 68, 68, 68, 68, 68 |
| }, |
| {/* level 1 */ |
| 17, 15, 17, 21, 20, 26, 38, 48, |
| 15, 19, 18, 17, 20, 26, 35, 43, |
| 17, 18, 20, 22, 26, 30, 46, 53, |
| 21, 17, 22, 28, 30, 39, 53, 64, |
| 20, 20, 26, 30, 39, 48, 64, 64, |
| 26, 26, 30, 39, 48, 63, 64, 64, |
| 38, 35, 46, 53, 64, 64, 64, 64, |
| 48, 43, 53, 64, 64, 64, 64, 64 |
| }, |
| {/* level 2 */ |
| 13, 11, 13, 16, 20, 20, 29, 37, |
| 11, 14, 14, 14, 16, 20, 26, 32, |
| 13, 14, 15, 17, 20, 23, 35, 40, |
| 16, 14, 17, 21, 23, 30, 40, 50, |
| 20, 16, 20, 23, 30, 37, 50, 59, |
| 20, 20, 23, 30, 37, 48, 59, 59, |
| 29, 26, 35, 40, 50, 59, 59, 59, |
| 37, 32, 40, 50, 59, 59, 59, 59 |
| }, |
| {/* level 3 - low compression quality */ |
| 9, 8, 9, 11, 14, 17, 19, 24, |
| 8, 10, 9, 11, 14, 13, 17, 22, |
| 9, 9, 13, 14, 13, 15, 23, 26, |
| 11, 11, 14, 14, 15, 20, 26, 33, |
| 14, 14, 13, 15, 20, 24, 33, 39, |
| 17, 13, 15, 20, 24, 32, 39, 39, |
| 19, 17, 23, 26, 33, 39, 39, 39, |
| 24, 22, 26, 33, 39, 39, 39, 39 |
| } |
| }; |
| |
| static const unsigned char hdctbl0[16] = { |
| 0, 1, 5, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0 |
| }; |
| |
| static const unsigned char hdctblg0[12] = { |
| 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0xa, 0xb |
| }; |
| static const unsigned char hactbl0[16] = { |
| 0, 2, 1, 3, 3, 2, 4, 3, 5, 5, 4, 4, 0, 0, 1, 0x7d |
| }; |
| static const unsigned char hactblg0[162] = { |
| 0x01, 0x02, 0x03, 0x00, 0x04, 0x11, 0x05, 0x12, |
| 0x21, 0x31, 0x41, 0x06, 0x13, 0x51, 0x61, 0x07, |
| 0x22, 0x71, 0x14, 0x32, 0x81, 0x91, 0xa1, 0x08, |
| 0x23, 0x42, 0xb1, 0xc1, 0x15, 0x52, 0xd1, 0xf0, |
| 0x24, 0x33, 0x62, 0x72, 0x82, 0x09, 0x0a, 0x16, |
| 0x17, 0x18, 0x19, 0x1a, 0x25, 0x26, 0x27, 0x28, |
| 0x29, 0x2a, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, |
| 0x3a, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49, |
| 0x4a, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59, |
| 0x5a, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, |
| 0x6a, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79, |
| 0x7a, 0x83, 0x84, 0x85, 0x86, 0x87, 0x88, 0x89, |
| 0x8a, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, 0x98, |
| 0x99, 0x9a, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7, |
| 0xa8, 0xa9, 0xaa, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, |
| 0xb7, 0xb8, 0xb9, 0xba, 0xc2, 0xc3, 0xc4, 0xc5, |
| 0xc6, 0xc7, 0xc8, 0xc9, 0xca, 0xd2, 0xd3, 0xd4, |
| 0xd5, 0xd6, 0xd7, 0xd8, 0xd9, 0xda, 0xe1, 0xe2, |
| 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, 0xe8, 0xe9, 0xea, |
| 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, 0xf8, |
| 0xf9, 0xfa |
| }; |
| |
| /* |
| * Fourcc downgrade schema lookup tables for 422 and 420 |
| * chroma subsampling - fourcc on each position maps on the |
| * fourcc from the table fourcc_to_dwngrd_schema_id which allows |
| * to get the most suitable fourcc counterpart for the given |
| * downgraded subsampling property. |
| */ |
| static const u32 subs422_fourcc_dwngrd_schema[] = { |
| V4L2_PIX_FMT_NV16, |
| V4L2_PIX_FMT_NV61, |
| }; |
| |
| static const u32 subs420_fourcc_dwngrd_schema[] = { |
| V4L2_PIX_FMT_NV12, |
| V4L2_PIX_FMT_NV21, |
| V4L2_PIX_FMT_NV12, |
| V4L2_PIX_FMT_NV21, |
| V4L2_PIX_FMT_NV12, |
| V4L2_PIX_FMT_NV21, |
| V4L2_PIX_FMT_GREY, |
| V4L2_PIX_FMT_GREY, |
| V4L2_PIX_FMT_GREY, |
| V4L2_PIX_FMT_GREY, |
| }; |
| |
| /* |
| * Lookup table for translation of a fourcc to the position |
| * of its downgraded counterpart in the *fourcc_dwngrd_schema |
| * tables. |
| */ |
| static const u32 fourcc_to_dwngrd_schema_id[] = { |
| V4L2_PIX_FMT_NV24, |
| V4L2_PIX_FMT_NV42, |
| V4L2_PIX_FMT_NV16, |
| V4L2_PIX_FMT_NV61, |
| V4L2_PIX_FMT_YUYV, |
| V4L2_PIX_FMT_YVYU, |
| V4L2_PIX_FMT_NV12, |
| V4L2_PIX_FMT_NV21, |
| V4L2_PIX_FMT_YUV420, |
| V4L2_PIX_FMT_GREY, |
| }; |
| |
| static int s5p_jpeg_get_dwngrd_sch_id_by_fourcc(u32 fourcc) |
| { |
| int i; |
| |
| for (i = 0; i < ARRAY_SIZE(fourcc_to_dwngrd_schema_id); ++i) { |
| if (fourcc_to_dwngrd_schema_id[i] == fourcc) |
| return i; |
| } |
| |
| return -EINVAL; |
| } |
| |
| static int s5p_jpeg_adjust_fourcc_to_subsampling( |
| enum v4l2_jpeg_chroma_subsampling subs, |
| u32 in_fourcc, |
| u32 *out_fourcc, |
| struct s5p_jpeg_ctx *ctx) |
| { |
| int dwngrd_sch_id; |
| |
| if (ctx->subsampling != V4L2_JPEG_CHROMA_SUBSAMPLING_GRAY) { |
| dwngrd_sch_id = |
| s5p_jpeg_get_dwngrd_sch_id_by_fourcc(in_fourcc); |
| if (dwngrd_sch_id < 0) |
| return -EINVAL; |
| } |
| |
| switch (ctx->subsampling) { |
| case V4L2_JPEG_CHROMA_SUBSAMPLING_GRAY: |
| *out_fourcc = V4L2_PIX_FMT_GREY; |
| break; |
| case V4L2_JPEG_CHROMA_SUBSAMPLING_420: |
| if (dwngrd_sch_id > |
| ARRAY_SIZE(subs420_fourcc_dwngrd_schema) - 1) |
| return -EINVAL; |
| *out_fourcc = subs420_fourcc_dwngrd_schema[dwngrd_sch_id]; |
| break; |
| case V4L2_JPEG_CHROMA_SUBSAMPLING_422: |
| if (dwngrd_sch_id > |
| ARRAY_SIZE(subs422_fourcc_dwngrd_schema) - 1) |
| return -EINVAL; |
| *out_fourcc = subs422_fourcc_dwngrd_schema[dwngrd_sch_id]; |
| break; |
| default: |
| *out_fourcc = V4L2_PIX_FMT_GREY; |
| break; |
| } |
| |
| return 0; |
| } |
| |
| static int exynos4x12_decoded_subsampling[] = { |
| V4L2_JPEG_CHROMA_SUBSAMPLING_GRAY, |
| V4L2_JPEG_CHROMA_SUBSAMPLING_444, |
| V4L2_JPEG_CHROMA_SUBSAMPLING_422, |
| V4L2_JPEG_CHROMA_SUBSAMPLING_420, |
| }; |
| |
| static int exynos3250_decoded_subsampling[] = { |
| V4L2_JPEG_CHROMA_SUBSAMPLING_444, |
| V4L2_JPEG_CHROMA_SUBSAMPLING_422, |
| V4L2_JPEG_CHROMA_SUBSAMPLING_420, |
| V4L2_JPEG_CHROMA_SUBSAMPLING_GRAY, |
| -1, |
| -1, |
| V4L2_JPEG_CHROMA_SUBSAMPLING_411, |
| }; |
| |
| static inline struct s5p_jpeg_ctx *ctrl_to_ctx(struct v4l2_ctrl *c) |
| { |
| return container_of(c->handler, struct s5p_jpeg_ctx, ctrl_handler); |
| } |
| |
| static inline struct s5p_jpeg_ctx *fh_to_ctx(struct v4l2_fh *fh) |
| { |
| return container_of(fh, struct s5p_jpeg_ctx, fh); |
| } |
| |
| static int s5p_jpeg_to_user_subsampling(struct s5p_jpeg_ctx *ctx) |
| { |
| switch (ctx->jpeg->variant->version) { |
| case SJPEG_S5P: |
| WARN_ON(ctx->subsampling > 3); |
| if (ctx->subsampling > 2) |
| return V4L2_JPEG_CHROMA_SUBSAMPLING_GRAY; |
| return ctx->subsampling; |
| case SJPEG_EXYNOS3250: |
| case SJPEG_EXYNOS5420: |
| WARN_ON(ctx->subsampling > 6); |
| if (ctx->subsampling > 3) |
| return V4L2_JPEG_CHROMA_SUBSAMPLING_411; |
| return exynos3250_decoded_subsampling[ctx->subsampling]; |
| case SJPEG_EXYNOS4: |
| WARN_ON(ctx->subsampling > 3); |
| if (ctx->subsampling > 2) |
| return V4L2_JPEG_CHROMA_SUBSAMPLING_420; |
| return exynos4x12_decoded_subsampling[ctx->subsampling]; |
| case SJPEG_EXYNOS5433: |
| return ctx->subsampling; /* parsed from header */ |
| default: |
| WARN_ON(ctx->subsampling > 3); |
| return V4L2_JPEG_CHROMA_SUBSAMPLING_GRAY; |
| } |
| } |
| |
| static inline void s5p_jpeg_set_qtbl(void __iomem *regs, |
| const unsigned char *qtbl, |
| unsigned long tab, int len) |
| { |
| int i; |
| |
| for (i = 0; i < len; i++) |
| writel((unsigned int)qtbl[i], regs + tab + (i * 0x04)); |
| } |
| |
| static inline void s5p_jpeg_set_qtbl_lum(void __iomem *regs, int quality) |
| { |
| /* this driver fills quantisation table 0 with data for luma */ |
| s5p_jpeg_set_qtbl(regs, qtbl_luminance[quality], |
| S5P_JPG_QTBL_CONTENT(0), |
| ARRAY_SIZE(qtbl_luminance[quality])); |
| } |
| |
| static inline void s5p_jpeg_set_qtbl_chr(void __iomem *regs, int quality) |
| { |
| /* this driver fills quantisation table 1 with data for chroma */ |
| s5p_jpeg_set_qtbl(regs, qtbl_chrominance[quality], |
| S5P_JPG_QTBL_CONTENT(1), |
| ARRAY_SIZE(qtbl_chrominance[quality])); |
| } |
| |
| static inline void s5p_jpeg_set_htbl(void __iomem *regs, |
| const unsigned char *htbl, |
| unsigned long tab, int len) |
| { |
| int i; |
| |
| for (i = 0; i < len; i++) |
| writel((unsigned int)htbl[i], regs + tab + (i * 0x04)); |
| } |
| |
| static inline void s5p_jpeg_set_hdctbl(void __iomem *regs) |
| { |
| /* this driver fills table 0 for this component */ |
| s5p_jpeg_set_htbl(regs, hdctbl0, S5P_JPG_HDCTBL(0), |
| ARRAY_SIZE(hdctbl0)); |
| } |
| |
| static inline void s5p_jpeg_set_hdctblg(void __iomem *regs) |
| { |
| /* this driver fills table 0 for this component */ |
| s5p_jpeg_set_htbl(regs, hdctblg0, S5P_JPG_HDCTBLG(0), |
| ARRAY_SIZE(hdctblg0)); |
| } |
| |
| static inline void s5p_jpeg_set_hactbl(void __iomem *regs) |
| { |
| /* this driver fills table 0 for this component */ |
| s5p_jpeg_set_htbl(regs, hactbl0, S5P_JPG_HACTBL(0), |
| ARRAY_SIZE(hactbl0)); |
| } |
| |
| static inline void s5p_jpeg_set_hactblg(void __iomem *regs) |
| { |
| /* this driver fills table 0 for this component */ |
| s5p_jpeg_set_htbl(regs, hactblg0, S5P_JPG_HACTBLG(0), |
| ARRAY_SIZE(hactblg0)); |
| } |
| |
| static inline void exynos4_jpeg_set_tbl(void __iomem *regs, |
| const unsigned char *tbl, |
| unsigned long tab, int len) |
| { |
| int i; |
| unsigned int dword; |
| |
| for (i = 0; i < len; i += 4) { |
| dword = tbl[i] | |
| (tbl[i + 1] << 8) | |
| (tbl[i + 2] << 16) | |
| (tbl[i + 3] << 24); |
| writel(dword, regs + tab + i); |
| } |
| } |
| |
| static inline void exynos4_jpeg_set_qtbl_lum(void __iomem *regs, int quality) |
| { |
| /* this driver fills quantisation table 0 with data for luma */ |
| exynos4_jpeg_set_tbl(regs, qtbl_luminance[quality], |
| EXYNOS4_QTBL_CONTENT(0), |
| ARRAY_SIZE(qtbl_luminance[quality])); |
| } |
| |
| static inline void exynos4_jpeg_set_qtbl_chr(void __iomem *regs, int quality) |
| { |
| /* this driver fills quantisation table 1 with data for chroma */ |
| exynos4_jpeg_set_tbl(regs, qtbl_chrominance[quality], |
| EXYNOS4_QTBL_CONTENT(1), |
| ARRAY_SIZE(qtbl_chrominance[quality])); |
| } |
| |
| static void exynos4_jpeg_set_huff_tbl(void __iomem *base) |
| { |
| exynos4_jpeg_set_tbl(base, hdctbl0, EXYNOS4_HUFF_TBL_HDCLL, |
| ARRAY_SIZE(hdctbl0)); |
| exynos4_jpeg_set_tbl(base, hdctbl0, EXYNOS4_HUFF_TBL_HDCCL, |
| ARRAY_SIZE(hdctbl0)); |
| exynos4_jpeg_set_tbl(base, hdctblg0, EXYNOS4_HUFF_TBL_HDCLV, |
| ARRAY_SIZE(hdctblg0)); |
| exynos4_jpeg_set_tbl(base, hdctblg0, EXYNOS4_HUFF_TBL_HDCCV, |
| ARRAY_SIZE(hdctblg0)); |
| exynos4_jpeg_set_tbl(base, hactbl0, EXYNOS4_HUFF_TBL_HACLL, |
| ARRAY_SIZE(hactbl0)); |
| exynos4_jpeg_set_tbl(base, hactbl0, EXYNOS4_HUFF_TBL_HACCL, |
| ARRAY_SIZE(hactbl0)); |
| exynos4_jpeg_set_tbl(base, hactblg0, EXYNOS4_HUFF_TBL_HACLV, |
| ARRAY_SIZE(hactblg0)); |
| exynos4_jpeg_set_tbl(base, hactblg0, EXYNOS4_HUFF_TBL_HACCV, |
| ARRAY_SIZE(hactblg0)); |
| } |
| |
| static inline int __exynos4_huff_tbl(int class, int id, bool lenval) |
| { |
| /* |
| * class: 0 - DC, 1 - AC |
| * id: 0 - Y, 1 - Cb/Cr |
| */ |
| if (class) { |
| if (id) |
| return lenval ? EXYNOS4_HUFF_TBL_HACCL : |
| EXYNOS4_HUFF_TBL_HACCV; |
| return lenval ? EXYNOS4_HUFF_TBL_HACLL : EXYNOS4_HUFF_TBL_HACLV; |
| |
| } |
| /* class == 0 */ |
| if (id) |
| return lenval ? EXYNOS4_HUFF_TBL_HDCCL : EXYNOS4_HUFF_TBL_HDCCV; |
| |
| return lenval ? EXYNOS4_HUFF_TBL_HDCLL : EXYNOS4_HUFF_TBL_HDCLV; |
| } |
| |
| static inline int exynos4_huff_tbl_len(int class, int id) |
| { |
| return __exynos4_huff_tbl(class, id, true); |
| } |
| |
| static inline int exynos4_huff_tbl_val(int class, int id) |
| { |
| return __exynos4_huff_tbl(class, id, false); |
| } |
| |
| static int get_byte(struct s5p_jpeg_buffer *buf); |
| static int get_word_be(struct s5p_jpeg_buffer *buf, unsigned int *word); |
| static void skip(struct s5p_jpeg_buffer *buf, long len); |
| |
| static void exynos4_jpeg_parse_decode_h_tbl(struct s5p_jpeg_ctx *ctx) |
| { |
| struct s5p_jpeg *jpeg = ctx->jpeg; |
| struct vb2_v4l2_buffer *vb = v4l2_m2m_next_src_buf(ctx->fh.m2m_ctx); |
| struct s5p_jpeg_buffer jpeg_buffer; |
| unsigned int word; |
| int c, x, components; |
| |
| jpeg_buffer.size = 2; /* Ls */ |
| jpeg_buffer.data = |
| (unsigned long)vb2_plane_vaddr(&vb->vb2_buf, 0) + ctx->out_q.sos + 2; |
| jpeg_buffer.curr = 0; |
| |
| word = 0; |
| |
| if (get_word_be(&jpeg_buffer, &word)) |
| return; |
| jpeg_buffer.size = (long)word - 2; |
| jpeg_buffer.data += 2; |
| jpeg_buffer.curr = 0; |
| |
| components = get_byte(&jpeg_buffer); |
| if (components == -1) |
| return; |
| while (components--) { |
| c = get_byte(&jpeg_buffer); |
| if (c == -1) |
| return; |
| x = get_byte(&jpeg_buffer); |
| if (x == -1) |
| return; |
| exynos4_jpeg_select_dec_h_tbl(jpeg->regs, c, |
| (((x >> 4) & 0x1) << 1) | (x & 0x1)); |
| } |
| |
| } |
| |
| static void exynos4_jpeg_parse_huff_tbl(struct s5p_jpeg_ctx *ctx) |
| { |
| struct s5p_jpeg *jpeg = ctx->jpeg; |
| struct vb2_v4l2_buffer *vb = v4l2_m2m_next_src_buf(ctx->fh.m2m_ctx); |
| struct s5p_jpeg_buffer jpeg_buffer; |
| unsigned int word; |
| int c, i, n, j; |
| |
| for (j = 0; j < ctx->out_q.dht.n; ++j) { |
| jpeg_buffer.size = ctx->out_q.dht.len[j]; |
| jpeg_buffer.data = (unsigned long)vb2_plane_vaddr(&vb->vb2_buf, 0) + |
| ctx->out_q.dht.marker[j]; |
| jpeg_buffer.curr = 0; |
| |
| word = 0; |
| while (jpeg_buffer.curr < jpeg_buffer.size) { |
| char id, class; |
| |
| c = get_byte(&jpeg_buffer); |
| if (c == -1) |
| return; |
| id = c & 0xf; |
| class = (c >> 4) & 0xf; |
| n = 0; |
| for (i = 0; i < 16; ++i) { |
| c = get_byte(&jpeg_buffer); |
| if (c == -1) |
| return; |
| word |= c << ((i % 4) * 8); |
| if ((i + 1) % 4 == 0) { |
| writel(word, jpeg->regs + |
| exynos4_huff_tbl_len(class, id) + |
| (i / 4) * 4); |
| word = 0; |
| } |
| n += c; |
| } |
| word = 0; |
| for (i = 0; i < n; ++i) { |
| c = get_byte(&jpeg_buffer); |
| if (c == -1) |
| return; |
| word |= c << ((i % 4) * 8); |
| if ((i + 1) % 4 == 0) { |
| writel(word, jpeg->regs + |
| exynos4_huff_tbl_val(class, id) + |
| (i / 4) * 4); |
| word = 0; |
| } |
| } |
| if (i % 4) { |
| writel(word, jpeg->regs + |
| exynos4_huff_tbl_val(class, id) + (i / 4) * 4); |
| } |
| word = 0; |
| } |
| } |
| } |
| |
| static void exynos4_jpeg_parse_decode_q_tbl(struct s5p_jpeg_ctx *ctx) |
| { |
| struct s5p_jpeg *jpeg = ctx->jpeg; |
| struct vb2_v4l2_buffer *vb = v4l2_m2m_next_src_buf(ctx->fh.m2m_ctx); |
| struct s5p_jpeg_buffer jpeg_buffer; |
| int c, x, components; |
| |
| jpeg_buffer.size = ctx->out_q.sof_len; |
| jpeg_buffer.data = |
| (unsigned long)vb2_plane_vaddr(&vb->vb2_buf, 0) + ctx->out_q.sof; |
| jpeg_buffer.curr = 0; |
| |
| skip(&jpeg_buffer, 5); /* P, Y, X */ |
| components = get_byte(&jpeg_buffer); |
| if (components == -1) |
| return; |
| |
| exynos4_jpeg_set_dec_components(jpeg->regs, components); |
| |
| while (components--) { |
| c = get_byte(&jpeg_buffer); |
| if (c == -1) |
| return; |
| skip(&jpeg_buffer, 1); |
| x = get_byte(&jpeg_buffer); |
| if (x == -1) |
| return; |
| exynos4_jpeg_select_dec_q_tbl(jpeg->regs, c, x); |
| } |
| } |
| |
| static void exynos4_jpeg_parse_q_tbl(struct s5p_jpeg_ctx *ctx) |
| { |
| struct s5p_jpeg *jpeg = ctx->jpeg; |
| struct vb2_v4l2_buffer *vb = v4l2_m2m_next_src_buf(ctx->fh.m2m_ctx); |
| struct s5p_jpeg_buffer jpeg_buffer; |
| unsigned int word; |
| int c, i, j; |
| |
| for (j = 0; j < ctx->out_q.dqt.n; ++j) { |
| jpeg_buffer.size = ctx->out_q.dqt.len[j]; |
| jpeg_buffer.data = (unsigned long)vb2_plane_vaddr(&vb->vb2_buf, 0) + |
| ctx->out_q.dqt.marker[j]; |
| jpeg_buffer.curr = 0; |
| |
| word = 0; |
| while (jpeg_buffer.size - jpeg_buffer.curr >= 65) { |
| char id; |
| |
| c = get_byte(&jpeg_buffer); |
| if (c == -1) |
| return; |
| id = c & 0xf; |
| /* nonzero means extended mode - not supported */ |
| if ((c >> 4) & 0xf) |
| return; |
| for (i = 0; i < 64; ++i) { |
| c = get_byte(&jpeg_buffer); |
| if (c == -1) |
| return; |
| word |= c << ((i % 4) * 8); |
| if ((i + 1) % 4 == 0) { |
| writel(word, jpeg->regs + |
| EXYNOS4_QTBL_CONTENT(id) + (i / 4) * 4); |
| word = 0; |
| } |
| } |
| word = 0; |
| } |
| } |
| } |
| |
| /* |
| * ============================================================================ |
| * Device file operations |
| * ============================================================================ |
| */ |
| |
| static int queue_init(void *priv, struct vb2_queue *src_vq, |
| struct vb2_queue *dst_vq); |
| static struct s5p_jpeg_fmt *s5p_jpeg_find_format(struct s5p_jpeg_ctx *ctx, |
| __u32 pixelformat, unsigned int fmt_type); |
| static int s5p_jpeg_controls_create(struct s5p_jpeg_ctx *ctx); |
| |
| static int s5p_jpeg_open(struct file *file) |
| { |
| struct s5p_jpeg *jpeg = video_drvdata(file); |
| struct video_device *vfd = video_devdata(file); |
| struct s5p_jpeg_ctx *ctx; |
| struct s5p_jpeg_fmt *out_fmt, *cap_fmt; |
| int ret = 0; |
| |
| ctx = kzalloc(sizeof(*ctx), GFP_KERNEL); |
| if (!ctx) |
| return -ENOMEM; |
| |
| if (mutex_lock_interruptible(&jpeg->lock)) { |
| ret = -ERESTARTSYS; |
| goto free; |
| } |
| |
| v4l2_fh_init(&ctx->fh, vfd); |
| /* Use separate control handler per file handle */ |
| ctx->fh.ctrl_handler = &ctx->ctrl_handler; |
| file->private_data = &ctx->fh; |
| v4l2_fh_add(&ctx->fh); |
| |
| ctx->jpeg = jpeg; |
| if (vfd == jpeg->vfd_encoder) { |
| ctx->mode = S5P_JPEG_ENCODE; |
| out_fmt = s5p_jpeg_find_format(ctx, V4L2_PIX_FMT_RGB565, |
| FMT_TYPE_OUTPUT); |
| cap_fmt = s5p_jpeg_find_format(ctx, V4L2_PIX_FMT_JPEG, |
| FMT_TYPE_CAPTURE); |
| } else { |
| ctx->mode = S5P_JPEG_DECODE; |
| out_fmt = s5p_jpeg_find_format(ctx, V4L2_PIX_FMT_JPEG, |
| FMT_TYPE_OUTPUT); |
| cap_fmt = s5p_jpeg_find_format(ctx, V4L2_PIX_FMT_YUYV, |
| FMT_TYPE_CAPTURE); |
| ctx->scale_factor = EXYNOS3250_DEC_SCALE_FACTOR_8_8; |
| } |
| |
| ctx->fh.m2m_ctx = v4l2_m2m_ctx_init(jpeg->m2m_dev, ctx, queue_init); |
| if (IS_ERR(ctx->fh.m2m_ctx)) { |
| ret = PTR_ERR(ctx->fh.m2m_ctx); |
| goto error; |
| } |
| |
| ctx->out_q.fmt = out_fmt; |
| ctx->cap_q.fmt = cap_fmt; |
| |
| ret = s5p_jpeg_controls_create(ctx); |
| if (ret < 0) |
| goto error; |
| |
| mutex_unlock(&jpeg->lock); |
| return 0; |
| |
| error: |
| v4l2_fh_del(&ctx->fh); |
| v4l2_fh_exit(&ctx->fh); |
| mutex_unlock(&jpeg->lock); |
| free: |
| kfree(ctx); |
| return ret; |
| } |
| |
| static int s5p_jpeg_release(struct file *file) |
| { |
| struct s5p_jpeg *jpeg = video_drvdata(file); |
| struct s5p_jpeg_ctx *ctx = fh_to_ctx(file->private_data); |
| |
| mutex_lock(&jpeg->lock); |
| v4l2_m2m_ctx_release(ctx->fh.m2m_ctx); |
| v4l2_ctrl_handler_free(&ctx->ctrl_handler); |
| v4l2_fh_del(&ctx->fh); |
| v4l2_fh_exit(&ctx->fh); |
| kfree(ctx); |
| mutex_unlock(&jpeg->lock); |
| |
| return 0; |
| } |
| |
| static const struct v4l2_file_operations s5p_jpeg_fops = { |
| .owner = THIS_MODULE, |
| .open = s5p_jpeg_open, |
| .release = s5p_jpeg_release, |
| .poll = v4l2_m2m_fop_poll, |
| .unlocked_ioctl = video_ioctl2, |
| .mmap = v4l2_m2m_fop_mmap, |
| }; |
| |
| /* |
| * ============================================================================ |
| * video ioctl operations |
| * ============================================================================ |
| */ |
| |
| static int get_byte(struct s5p_jpeg_buffer *buf) |
| { |
| if (buf->curr >= buf->size) |
| return -1; |
| |
| return ((unsigned char *)buf->data)[buf->curr++]; |
| } |
| |
| static int get_word_be(struct s5p_jpeg_buffer *buf, unsigned int *word) |
| { |
| unsigned int temp; |
| int byte; |
| |
| byte = get_byte(buf); |
| if (byte == -1) |
| return -1; |
| temp = byte << 8; |
| byte = get_byte(buf); |
| if (byte == -1) |
| return -1; |
| *word = (unsigned int)byte | temp; |
| return 0; |
| } |
| |
| static void skip(struct s5p_jpeg_buffer *buf, long len) |
| { |
| if (len <= 0) |
| return; |
| |
| while (len--) |
| get_byte(buf); |
| } |
| |
| static bool s5p_jpeg_subsampling_decode(struct s5p_jpeg_ctx *ctx, |
| unsigned int subsampling) |
| { |
| unsigned int version; |
| |
| switch (subsampling) { |
| case 0x11: |
| ctx->subsampling = V4L2_JPEG_CHROMA_SUBSAMPLING_444; |
| break; |
| case 0x21: |
| ctx->subsampling = V4L2_JPEG_CHROMA_SUBSAMPLING_422; |
| break; |
| case 0x22: |
| ctx->subsampling = V4L2_JPEG_CHROMA_SUBSAMPLING_420; |
| break; |
| case 0x33: |
| ctx->subsampling = V4L2_JPEG_CHROMA_SUBSAMPLING_GRAY; |
| break; |
| case 0x41: |
| /* |
| * 4:1:1 subsampling only supported by 3250, 5420, and 5433 |
| * variants |
| */ |
| version = ctx->jpeg->variant->version; |
| if (version != SJPEG_EXYNOS3250 && |
| version != SJPEG_EXYNOS5420 && |
| version != SJPEG_EXYNOS5433) |
| return false; |
| |
| ctx->subsampling = V4L2_JPEG_CHROMA_SUBSAMPLING_411; |
| break; |
| default: |
| return false; |
| } |
| |
| return true; |
| } |
| |
| static bool s5p_jpeg_parse_hdr(struct s5p_jpeg_q_data *result, |
| unsigned long buffer, unsigned long size, |
| struct s5p_jpeg_ctx *ctx) |
| { |
| int c, components = 0, notfound, n_dht = 0, n_dqt = 0; |
| unsigned int height = 0, width = 0, word, subsampling = 0; |
| unsigned int sos = 0, sof = 0, sof_len = 0; |
| unsigned int dht[S5P_JPEG_MAX_MARKER], dht_len[S5P_JPEG_MAX_MARKER]; |
| unsigned int dqt[S5P_JPEG_MAX_MARKER], dqt_len[S5P_JPEG_MAX_MARKER]; |
| long length; |
| struct s5p_jpeg_buffer jpeg_buffer; |
| |
| jpeg_buffer.size = size; |
| jpeg_buffer.data = buffer; |
| jpeg_buffer.curr = 0; |
| |
| notfound = 1; |
| while (notfound || !sos) { |
| c = get_byte(&jpeg_buffer); |
| if (c == -1) |
| return false; |
| if (c != 0xff) |
| continue; |
| do |
| c = get_byte(&jpeg_buffer); |
| while (c == 0xff); |
| if (c == -1) |
| return false; |
| if (c == 0) |
| continue; |
| length = 0; |
| switch (c) { |
| /* SOF0: baseline JPEG */ |
| case SOF0: |
| if (get_word_be(&jpeg_buffer, &word)) |
| break; |
| length = (long)word - 2; |
| if (!length) |
| return false; |
| sof = jpeg_buffer.curr; /* after 0xffc0 */ |
| sof_len = length; |
| if (get_byte(&jpeg_buffer) == -1) |
| break; |
| if (get_word_be(&jpeg_buffer, &height)) |
| break; |
| if (get_word_be(&jpeg_buffer, &width)) |
| break; |
| components = get_byte(&jpeg_buffer); |
| if (components == -1) |
| break; |
| |
| if (components == 1) { |
| subsampling = 0x33; |
| } else { |
| skip(&jpeg_buffer, 1); |
| subsampling = get_byte(&jpeg_buffer); |
| skip(&jpeg_buffer, 1); |
| } |
| if (components > 3) |
| return false; |
| skip(&jpeg_buffer, components * 2); |
| notfound = 0; |
| break; |
| |
| case DQT: |
| if (get_word_be(&jpeg_buffer, &word)) |
| break; |
| length = (long)word - 2; |
| if (!length) |
| return false; |
| if (n_dqt >= S5P_JPEG_MAX_MARKER) |
| return false; |
| dqt[n_dqt] = jpeg_buffer.curr; /* after 0xffdb */ |
| dqt_len[n_dqt++] = length; |
| skip(&jpeg_buffer, length); |
| break; |
| |
| case DHT: |
| if (get_word_be(&jpeg_buffer, &word)) |
| break; |
| length = (long)word - 2; |
| if (!length) |
| return false; |
| if (n_dht >= S5P_JPEG_MAX_MARKER) |
| return false; |
| dht[n_dht] = jpeg_buffer.curr; /* after 0xffc4 */ |
| dht_len[n_dht++] = length; |
| skip(&jpeg_buffer, length); |
| break; |
| |
| case SOS: |
| sos = jpeg_buffer.curr - 2; /* 0xffda */ |
| break; |
| |
| /* skip payload-less markers */ |
| case RST ... RST + 7: |
| case SOI: |
| case EOI: |
| case TEM: |
| break; |
| |
| /* skip uninteresting payload markers */ |
| default: |
| if (get_word_be(&jpeg_buffer, &word)) |
| break; |
| length = (long)word - 2; |
| skip(&jpeg_buffer, length); |
| break; |
| } |
| } |
| |
| if (notfound || !sos || !s5p_jpeg_subsampling_decode(ctx, subsampling)) |
| return false; |
| |
| result->w = width; |
| result->h = height; |
| result->sos = sos; |
| result->dht.n = n_dht; |
| while (n_dht--) { |
| result->dht.marker[n_dht] = dht[n_dht]; |
| result->dht.len[n_dht] = dht_len[n_dht]; |
| } |
| result->dqt.n = n_dqt; |
| while (n_dqt--) { |
| result->dqt.marker[n_dqt] = dqt[n_dqt]; |
| result->dqt.len[n_dqt] = dqt_len[n_dqt]; |
| } |
| result->sof = sof; |
| result->sof_len = sof_len; |
| result->components = components; |
| |
| return true; |
| } |
| |
| static int s5p_jpeg_querycap(struct file *file, void *priv, |
| struct v4l2_capability *cap) |
| { |
| struct s5p_jpeg_ctx *ctx = fh_to_ctx(priv); |
| |
| if (ctx->mode == S5P_JPEG_ENCODE) { |
| strlcpy(cap->driver, S5P_JPEG_M2M_NAME, |
| sizeof(cap->driver)); |
| strlcpy(cap->card, S5P_JPEG_M2M_NAME " encoder", |
| sizeof(cap->card)); |
| } else { |
| strlcpy(cap->driver, S5P_JPEG_M2M_NAME, |
| sizeof(cap->driver)); |
| strlcpy(cap->card, S5P_JPEG_M2M_NAME " decoder", |
| sizeof(cap->card)); |
| } |
| snprintf(cap->bus_info, sizeof(cap->bus_info), "platform:%s", |
| dev_name(ctx->jpeg->dev)); |
| cap->device_caps = V4L2_CAP_STREAMING | V4L2_CAP_VIDEO_M2M; |
| cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS; |
| return 0; |
| } |
| |
| static int enum_fmt(struct s5p_jpeg_ctx *ctx, |
| struct s5p_jpeg_fmt *sjpeg_formats, int n, |
| struct v4l2_fmtdesc *f, u32 type) |
| { |
| int i, num = 0; |
| unsigned int fmt_ver_flag = ctx->jpeg->variant->fmt_ver_flag; |
| |
| for (i = 0; i < n; ++i) { |
| if (sjpeg_formats[i].flags & type && |
| sjpeg_formats[i].flags & fmt_ver_flag) { |
| /* index-th format of type type found ? */ |
| if (num == f->index) |
| break; |
| /* Correct type but haven't reached our index yet, |
| * just increment per-type index |
| */ |
| ++num; |
| } |
| } |
| |
| /* Format not found */ |
| if (i >= n) |
| return -EINVAL; |
| |
| strlcpy(f->description, sjpeg_formats[i].name, sizeof(f->description)); |
| f->pixelformat = sjpeg_formats[i].fourcc; |
| |
| return 0; |
| } |
| |
| static int s5p_jpeg_enum_fmt_vid_cap(struct file *file, void *priv, |
| struct v4l2_fmtdesc *f) |
| { |
| struct s5p_jpeg_ctx *ctx = fh_to_ctx(priv); |
| |
| if (ctx->mode == S5P_JPEG_ENCODE) |
| return enum_fmt(ctx, sjpeg_formats, SJPEG_NUM_FORMATS, f, |
| SJPEG_FMT_FLAG_ENC_CAPTURE); |
| |
| return enum_fmt(ctx, sjpeg_formats, SJPEG_NUM_FORMATS, f, |
| SJPEG_FMT_FLAG_DEC_CAPTURE); |
| } |
| |
| static int s5p_jpeg_enum_fmt_vid_out(struct file *file, void *priv, |
| struct v4l2_fmtdesc *f) |
| { |
| struct s5p_jpeg_ctx *ctx = fh_to_ctx(priv); |
| |
| if (ctx->mode == S5P_JPEG_ENCODE) |
| return enum_fmt(ctx, sjpeg_formats, SJPEG_NUM_FORMATS, f, |
| SJPEG_FMT_FLAG_ENC_OUTPUT); |
| |
| return enum_fmt(ctx, sjpeg_formats, SJPEG_NUM_FORMATS, f, |
| SJPEG_FMT_FLAG_DEC_OUTPUT); |
| } |
| |
| static struct s5p_jpeg_q_data *get_q_data(struct s5p_jpeg_ctx *ctx, |
| enum v4l2_buf_type type) |
| { |
| if (type == V4L2_BUF_TYPE_VIDEO_OUTPUT) |
| return &ctx->out_q; |
| if (type == V4L2_BUF_TYPE_VIDEO_CAPTURE) |
| return &ctx->cap_q; |
| |
| return NULL; |
| } |
| |
| static int s5p_jpeg_g_fmt(struct file *file, void *priv, struct v4l2_format *f) |
| { |
| struct vb2_queue *vq; |
| struct s5p_jpeg_q_data *q_data = NULL; |
| struct v4l2_pix_format *pix = &f->fmt.pix; |
| struct s5p_jpeg_ctx *ct = fh_to_ctx(priv); |
| |
| vq = v4l2_m2m_get_vq(ct->fh.m2m_ctx, f->type); |
| if (!vq) |
| return -EINVAL; |
| |
| if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE && |
| ct->mode == S5P_JPEG_DECODE && !ct->hdr_parsed) |
| return -EINVAL; |
| q_data = get_q_data(ct, f->type); |
| BUG_ON(q_data == NULL); |
| |
| pix->width = q_data->w; |
| pix->height = q_data->h; |
| pix->field = V4L2_FIELD_NONE; |
| pix->pixelformat = q_data->fmt->fourcc; |
| pix->bytesperline = 0; |
| if (q_data->fmt->fourcc != V4L2_PIX_FMT_JPEG) { |
| u32 bpl = q_data->w; |
| |
| if (q_data->fmt->colplanes == 1) |
| bpl = (bpl * q_data->fmt->depth) >> 3; |
| pix->bytesperline = bpl; |
| } |
| pix->sizeimage = q_data->size; |
| |
| return 0; |
| } |
| |
| static struct s5p_jpeg_fmt *s5p_jpeg_find_format(struct s5p_jpeg_ctx *ctx, |
| u32 pixelformat, unsigned int fmt_type) |
| { |
| unsigned int k, fmt_flag; |
| |
| if (ctx->mode == S5P_JPEG_ENCODE) |
| fmt_flag = (fmt_type == FMT_TYPE_OUTPUT) ? |
| SJPEG_FMT_FLAG_ENC_OUTPUT : |
| SJPEG_FMT_FLAG_ENC_CAPTURE; |
| else |
| fmt_flag = (fmt_type == FMT_TYPE_OUTPUT) ? |
| SJPEG_FMT_FLAG_DEC_OUTPUT : |
| SJPEG_FMT_FLAG_DEC_CAPTURE; |
| |
| for (k = 0; k < ARRAY_SIZE(sjpeg_formats); k++) { |
| struct s5p_jpeg_fmt *fmt = &sjpeg_formats[k]; |
| |
| if (fmt->fourcc == pixelformat && |
| fmt->flags & fmt_flag && |
| fmt->flags & ctx->jpeg->variant->fmt_ver_flag) { |
| return fmt; |
| } |
| } |
| |
| return NULL; |
| } |
| |
| static void jpeg_bound_align_image(struct s5p_jpeg_ctx *ctx, |
| u32 *w, unsigned int wmin, unsigned int wmax, |
| unsigned int walign, |
| u32 *h, unsigned int hmin, unsigned int hmax, |
| unsigned int halign) |
| { |
| int width, height, w_step, h_step; |
| |
| width = *w; |
| height = *h; |
| |
| w_step = 1 << walign; |
| h_step = 1 << halign; |
| |
| if (ctx->jpeg->variant->hw3250_compat) { |
| /* |
| * Rightmost and bottommost pixels are cropped by the |
| * Exynos3250/compatible JPEG IP for RGB formats, for the |
| * specific width and height values respectively. This |
| * assignment will result in v4l_bound_align_image returning |
| * dimensions reduced by 1 for the aforementioned cases. |
| */ |
| if (w_step == 4 && ((width & 3) == 1)) { |
| wmax = width; |
| hmax = height; |
| } |
| } |
| |
| v4l_bound_align_image(w, wmin, wmax, walign, h, hmin, hmax, halign, 0); |
| |
| if (*w < width && (*w + w_step) < wmax) |
| *w += w_step; |
| if (*h < height && (*h + h_step) < hmax) |
| *h += h_step; |
| } |
| |
| static int vidioc_try_fmt(struct v4l2_format *f, struct s5p_jpeg_fmt *fmt, |
| struct s5p_jpeg_ctx *ctx, int q_type) |
| { |
| struct v4l2_pix_format *pix = &f->fmt.pix; |
| |
| if (pix->field == V4L2_FIELD_ANY) |
| pix->field = V4L2_FIELD_NONE; |
| else if (pix->field != V4L2_FIELD_NONE) |
| return -EINVAL; |
| |
| /* V4L2 specification suggests the driver corrects the format struct |
| * if any of the dimensions is unsupported |
| */ |
| if (q_type == FMT_TYPE_OUTPUT) |
| jpeg_bound_align_image(ctx, &pix->width, S5P_JPEG_MIN_WIDTH, |
| S5P_JPEG_MAX_WIDTH, 0, |
| &pix->height, S5P_JPEG_MIN_HEIGHT, |
| S5P_JPEG_MAX_HEIGHT, 0); |
| else |
| jpeg_bound_align_image(ctx, &pix->width, S5P_JPEG_MIN_WIDTH, |
| S5P_JPEG_MAX_WIDTH, fmt->h_align, |
| &pix->height, S5P_JPEG_MIN_HEIGHT, |
| S5P_JPEG_MAX_HEIGHT, fmt->v_align); |
| |
| if (fmt->fourcc == V4L2_PIX_FMT_JPEG) { |
| if (pix->sizeimage <= 0) |
| pix->sizeimage = PAGE_SIZE; |
| pix->bytesperline = 0; |
| } else { |
| u32 bpl = pix->bytesperline; |
| |
| if (fmt->colplanes > 1 && bpl < pix->width) |
| bpl = pix->width; /* planar */ |
| |
| if (fmt->colplanes == 1 && /* packed */ |
| (bpl << 3) / fmt->depth < pix->width) |
| bpl = (pix->width * fmt->depth) >> 3; |
| |
| pix->bytesperline = bpl; |
| pix->sizeimage = (pix->width * pix->height * fmt->depth) >> 3; |
| } |
| |
| return 0; |
| } |
| |
| static int s5p_jpeg_try_fmt_vid_cap(struct file *file, void *priv, |
| struct v4l2_format *f) |
| { |
| struct s5p_jpeg_ctx *ctx = fh_to_ctx(priv); |
| struct v4l2_pix_format *pix = &f->fmt.pix; |
| struct s5p_jpeg_fmt *fmt; |
| int ret; |
| |
| fmt = s5p_jpeg_find_format(ctx, f->fmt.pix.pixelformat, |
| FMT_TYPE_CAPTURE); |
| if (!fmt) { |
| v4l2_err(&ctx->jpeg->v4l2_dev, |
| "Fourcc format (0x%08x) invalid.\n", |
| f->fmt.pix.pixelformat); |
| return -EINVAL; |
| } |
| |
| if (!ctx->jpeg->variant->hw_ex4_compat || ctx->mode != S5P_JPEG_DECODE) |
| goto exit; |
| |
| /* |
| * The exynos4x12 device requires resulting YUV image |
| * subsampling not to be lower than the input jpeg subsampling. |
| * If this requirement is not met then downgrade the requested |
| * capture format to the one with subsampling equal to the input jpeg. |
| */ |
| if ((fmt->flags & SJPEG_FMT_NON_RGB) && |
| (fmt->subsampling < ctx->subsampling)) { |
| ret = s5p_jpeg_adjust_fourcc_to_subsampling(ctx->subsampling, |
| fmt->fourcc, |
| &pix->pixelformat, |
| ctx); |
| if (ret < 0) |
| pix->pixelformat = V4L2_PIX_FMT_GREY; |
| |
| fmt = s5p_jpeg_find_format(ctx, pix->pixelformat, |
| FMT_TYPE_CAPTURE); |
| } |
| |
| /* |
| * Decompression of a JPEG file with 4:2:0 subsampling and odd |
| * width to the YUV 4:2:0 compliant formats produces a raw image |
| * with broken luma component. Adjust capture format to RGB565 |
| * in such a case. |
| */ |
| if (ctx->subsampling == V4L2_JPEG_CHROMA_SUBSAMPLING_420 && |
| (ctx->out_q.w & 1) && |
| (pix->pixelformat == V4L2_PIX_FMT_NV12 || |
| pix->pixelformat == V4L2_PIX_FMT_NV21 || |
| pix->pixelformat == V4L2_PIX_FMT_YUV420)) { |
| pix->pixelformat = V4L2_PIX_FMT_RGB565; |
| fmt = s5p_jpeg_find_format(ctx, pix->pixelformat, |
| FMT_TYPE_CAPTURE); |
| } |
| |
| exit: |
| return vidioc_try_fmt(f, fmt, ctx, FMT_TYPE_CAPTURE); |
| } |
| |
| static int s5p_jpeg_try_fmt_vid_out(struct file *file, void *priv, |
| struct v4l2_format *f) |
| { |
| struct s5p_jpeg_ctx *ctx = fh_to_ctx(priv); |
| struct s5p_jpeg_fmt *fmt; |
| |
| fmt = s5p_jpeg_find_format(ctx, f->fmt.pix.pixelformat, |
| FMT_TYPE_OUTPUT); |
| if (!fmt) { |
| v4l2_err(&ctx->jpeg->v4l2_dev, |
| "Fourcc format (0x%08x) invalid.\n", |
| f->fmt.pix.pixelformat); |
| return -EINVAL; |
| } |
| |
| return vidioc_try_fmt(f, fmt, ctx, FMT_TYPE_OUTPUT); |
| } |
| |
| static int exynos4_jpeg_get_output_buffer_size(struct s5p_jpeg_ctx *ctx, |
| struct v4l2_format *f, |
| int fmt_depth) |
| { |
| struct v4l2_pix_format *pix = &f->fmt.pix; |
| u32 pix_fmt = f->fmt.pix.pixelformat; |
| int w = pix->width, h = pix->height, wh_align; |
| int padding = 0; |
| |
| if (pix_fmt == V4L2_PIX_FMT_RGB32 || |
| pix_fmt == V4L2_PIX_FMT_RGB565 || |
| pix_fmt == V4L2_PIX_FMT_NV24 || |
| pix_fmt == V4L2_PIX_FMT_NV42 || |
| pix_fmt == V4L2_PIX_FMT_NV12 || |
| pix_fmt == V4L2_PIX_FMT_NV21 || |
| pix_fmt == V4L2_PIX_FMT_YUV420) |
| wh_align = 4; |
| else |
| wh_align = 1; |
| |
| jpeg_bound_align_image(ctx, &w, S5P_JPEG_MIN_WIDTH, |
| S5P_JPEG_MAX_WIDTH, wh_align, |
| &h, S5P_JPEG_MIN_HEIGHT, |
| S5P_JPEG_MAX_HEIGHT, wh_align); |
| |
| if (ctx->jpeg->variant->version == SJPEG_EXYNOS4) |
| padding = PAGE_SIZE; |
| |
| return (w * h * fmt_depth >> 3) + padding; |
| } |
| |
| static int exynos3250_jpeg_try_downscale(struct s5p_jpeg_ctx *ctx, |
| struct v4l2_rect *r); |
| |
| static int s5p_jpeg_s_fmt(struct s5p_jpeg_ctx *ct, struct v4l2_format *f) |
| { |
| struct vb2_queue *vq; |
| struct s5p_jpeg_q_data *q_data = NULL; |
| struct v4l2_pix_format *pix = &f->fmt.pix; |
| struct v4l2_ctrl *ctrl_subs; |
| struct v4l2_rect scale_rect; |
| unsigned int f_type; |
| |
| vq = v4l2_m2m_get_vq(ct->fh.m2m_ctx, f->type); |
| if (!vq) |
| return -EINVAL; |
| |
| q_data = get_q_data(ct, f->type); |
| BUG_ON(q_data == NULL); |
| |
| if (vb2_is_busy(vq)) { |
| v4l2_err(&ct->jpeg->v4l2_dev, "%s queue busy\n", __func__); |
| return -EBUSY; |
| } |
| |
| f_type = V4L2_TYPE_IS_OUTPUT(f->type) ? |
| FMT_TYPE_OUTPUT : FMT_TYPE_CAPTURE; |
| |
| q_data->fmt = s5p_jpeg_find_format(ct, pix->pixelformat, f_type); |
| if (ct->mode == S5P_JPEG_ENCODE || |
| (ct->mode == S5P_JPEG_DECODE && |
| q_data->fmt->fourcc != V4L2_PIX_FMT_JPEG)) { |
| q_data->w = pix->width; |
| q_data->h = pix->height; |
| } |
| if (q_data->fmt->fourcc != V4L2_PIX_FMT_JPEG) { |
| /* |
| * During encoding Exynos4x12 SoCs access wider memory area |
| * than it results from Image_x and Image_y values written to |
| * the JPEG_IMAGE_SIZE register. In order to avoid sysmmu |
| * page fault calculate proper buffer size in such a case. |
| */ |
| if (ct->jpeg->variant->hw_ex4_compat && |
| f_type == FMT_TYPE_OUTPUT && ct->mode == S5P_JPEG_ENCODE) |
| q_data->size = exynos4_jpeg_get_output_buffer_size(ct, |
| f, |
| q_data->fmt->depth); |
| else |
| q_data->size = q_data->w * q_data->h * |
| q_data->fmt->depth >> 3; |
| } else { |
| q_data->size = pix->sizeimage; |
| } |
| |
| if (f_type == FMT_TYPE_OUTPUT) { |
| ctrl_subs = v4l2_ctrl_find(&ct->ctrl_handler, |
| V4L2_CID_JPEG_CHROMA_SUBSAMPLING); |
| if (ctrl_subs) |
| v4l2_ctrl_s_ctrl(ctrl_subs, q_data->fmt->subsampling); |
| ct->crop_altered = false; |
| } |
| |
| /* |
| * For decoding init crop_rect with capture buffer dimmensions which |
| * contain aligned dimensions of the input JPEG image and do it only |
| * if crop rectangle hasn't been altered by the user space e.g. with |
| * S_SELECTION ioctl. For encoding assign output buffer dimensions. |
| */ |
| if (!ct->crop_altered && |
| ((ct->mode == S5P_JPEG_DECODE && f_type == FMT_TYPE_CAPTURE) || |
| (ct->mode == S5P_JPEG_ENCODE && f_type == FMT_TYPE_OUTPUT))) { |
| ct->crop_rect.width = pix->width; |
| ct->crop_rect.height = pix->height; |
| } |
| |
| /* |
| * Prevent downscaling to YUV420 format by more than 2 |
| * for Exynos3250/compatible SoC as it produces broken raw image |
| * in such cases. |
| */ |
| if (ct->mode == S5P_JPEG_DECODE && |
| f_type == FMT_TYPE_CAPTURE && |
| ct->jpeg->variant->hw3250_compat && |
| pix->pixelformat == V4L2_PIX_FMT_YUV420 && |
| ct->scale_factor > 2) { |
| scale_rect.width = ct->out_q.w / 2; |
| scale_rect.height = ct->out_q.h / 2; |
| exynos3250_jpeg_try_downscale(ct, &scale_rect); |
| } |
| |
| return 0; |
| } |
| |
| static int s5p_jpeg_s_fmt_vid_cap(struct file *file, void *priv, |
| struct v4l2_format *f) |
| { |
| int ret; |
| |
| ret = s5p_jpeg_try_fmt_vid_cap(file, priv, f); |
| if (ret) |
| return ret; |
| |
| return s5p_jpeg_s_fmt(fh_to_ctx(priv), f); |
| } |
| |
| static int s5p_jpeg_s_fmt_vid_out(struct file *file, void *priv, |
| struct v4l2_format *f) |
| { |
| int ret; |
| |
| ret = s5p_jpeg_try_fmt_vid_out(file, priv, f); |
| if (ret) |
| return ret; |
| |
| return s5p_jpeg_s_fmt(fh_to_ctx(priv), f); |
| } |
| |
| static int s5p_jpeg_subscribe_event(struct v4l2_fh *fh, |
| const struct v4l2_event_subscription *sub) |
| { |
| if (sub->type == V4L2_EVENT_SOURCE_CHANGE) |
| return v4l2_src_change_event_subscribe(fh, sub); |
| |
| return -EINVAL; |
| } |
| |
| static int exynos3250_jpeg_try_downscale(struct s5p_jpeg_ctx *ctx, |
| struct v4l2_rect *r) |
| { |
| int w_ratio, h_ratio, scale_factor, cur_ratio, i; |
| |
| w_ratio = ctx->out_q.w / r->width; |
| h_ratio = ctx->out_q.h / r->height; |
| |
| scale_factor = w_ratio > h_ratio ? w_ratio : h_ratio; |
| scale_factor = clamp_val(scale_factor, 1, 8); |
| |
| /* Align scale ratio to the nearest power of 2 */ |
| for (i = 0; i <= 3; ++i) { |
| cur_ratio = 1 << i; |
| if (scale_factor <= cur_ratio) { |
| ctx->scale_factor = cur_ratio; |
| break; |
| } |
| } |
| |
| r->width = round_down(ctx->out_q.w / ctx->scale_factor, 2); |
| r->height = round_down(ctx->out_q.h / ctx->scale_factor, 2); |
| |
| ctx->crop_rect.width = r->width; |
| ctx->crop_rect.height = r->height; |
| ctx->crop_rect.left = 0; |
| ctx->crop_rect.top = 0; |
| |
| ctx->crop_altered = true; |
| |
| return 0; |
| } |
| |
| /* Return 1 if rectangle a is enclosed in rectangle b, or 0 otherwise. */ |
| static int enclosed_rectangle(struct v4l2_rect *a, struct v4l2_rect *b) |
| { |
| if (a->left < b->left || a->top < b->top) |
| return 0; |
| if (a->left + a->width > b->left + b->width) |
| return 0; |
| if (a->top + a->height > b->top + b->height) |
| return 0; |
| |
| return 1; |
| } |
| |
| static int exynos3250_jpeg_try_crop(struct s5p_jpeg_ctx *ctx, |
| struct v4l2_rect *r) |
| { |
| struct v4l2_rect base_rect; |
| int w_step, h_step; |
| |
| switch (ctx->cap_q.fmt->fourcc) { |
| case V4L2_PIX_FMT_NV12: |
| case V4L2_PIX_FMT_NV21: |
| w_step = 1; |
| h_step = 2; |
| break; |
| case V4L2_PIX_FMT_YUV420: |
| w_step = 2; |
| h_step = 2; |
| break; |
| default: |
| w_step = 1; |
| h_step = 1; |
| break; |
| } |
| |
| base_rect.top = 0; |
| base_rect.left = 0; |
| base_rect.width = ctx->out_q.w; |
| base_rect.height = ctx->out_q.h; |
| |
| r->width = round_down(r->width, w_step); |
| r->height = round_down(r->height, h_step); |
| r->left = round_down(r->left, 2); |
| r->top = round_down(r->top, 2); |
| |
| if (!enclosed_rectangle(r, &base_rect)) |
| return -EINVAL; |
| |
| ctx->crop_rect.left = r->left; |
| ctx->crop_rect.top = r->top; |
| ctx->crop_rect.width = r->width; |
| ctx->crop_rect.height = r->height; |
| |
| ctx->crop_altered = true; |
| |
| return 0; |
| } |
| |
| /* |
| * V4L2 controls |
| */ |
| |
| static int s5p_jpeg_g_selection(struct file *file, void *priv, |
| struct v4l2_selection *s) |
| { |
| struct s5p_jpeg_ctx *ctx = fh_to_ctx(priv); |
| |
| if (s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT && |
| s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) |
| return -EINVAL; |
| |
| /* For JPEG blob active == default == bounds */ |
| switch (s->target) { |
| case V4L2_SEL_TGT_CROP: |
| case V4L2_SEL_TGT_CROP_BOUNDS: |
| case V4L2_SEL_TGT_CROP_DEFAULT: |
| case V4L2_SEL_TGT_COMPOSE_DEFAULT: |
| s->r.width = ctx->out_q.w; |
| s->r.height = ctx->out_q.h; |
| s->r.left = 0; |
| s->r.top = 0; |
| break; |
| case V4L2_SEL_TGT_COMPOSE: |
| case V4L2_SEL_TGT_COMPOSE_BOUNDS: |
| case V4L2_SEL_TGT_COMPOSE_PADDED: |
| s->r.width = ctx->crop_rect.width; |
| s->r.height = ctx->crop_rect.height; |
| s->r.left = ctx->crop_rect.left; |
| s->r.top = ctx->crop_rect.top; |
| break; |
| default: |
| return -EINVAL; |
| } |
| return 0; |
| } |
| |
| /* |
| * V4L2 controls |
| */ |
| static int s5p_jpeg_s_selection(struct file *file, void *fh, |
| struct v4l2_selection *s) |
| { |
| struct s5p_jpeg_ctx *ctx = fh_to_ctx(file->private_data); |
| struct v4l2_rect *rect = &s->r; |
| int ret = -EINVAL; |
| |
| if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) |
| return -EINVAL; |
| |
| if (s->target == V4L2_SEL_TGT_COMPOSE) { |
| if (ctx->mode != S5P_JPEG_DECODE) |
| return -EINVAL; |
| if (ctx->jpeg->variant->hw3250_compat) |
| ret = exynos3250_jpeg_try_downscale(ctx, rect); |
| } else if (s->target == V4L2_SEL_TGT_CROP) { |
| if (ctx->mode != S5P_JPEG_ENCODE) |
| return -EINVAL; |
| if (ctx->jpeg->variant->hw3250_compat) |
| ret = exynos3250_jpeg_try_crop(ctx, rect); |
| } |
| |
| return ret; |
| } |
| |
| static int s5p_jpeg_g_volatile_ctrl(struct v4l2_ctrl *ctrl) |
| { |
| struct s5p_jpeg_ctx *ctx = ctrl_to_ctx(ctrl); |
| struct s5p_jpeg *jpeg = ctx->jpeg; |
| unsigned long flags; |
| |
| switch (ctrl->id) { |
| case V4L2_CID_JPEG_CHROMA_SUBSAMPLING: |
| spin_lock_irqsave(&jpeg->slock, flags); |
| ctrl->val = s5p_jpeg_to_user_subsampling(ctx); |
| spin_unlock_irqrestore(&jpeg->slock, flags); |
| break; |
| } |
| |
| return 0; |
| } |
| |
| static int s5p_jpeg_adjust_subs_ctrl(struct s5p_jpeg_ctx *ctx, int *ctrl_val) |
| { |
| switch (ctx->jpeg->variant->version) { |
| case SJPEG_S5P: |
| return 0; |
| case SJPEG_EXYNOS3250: |
| case SJPEG_EXYNOS5420: |
| /* |
| * The exynos3250/compatible device can produce JPEG image only |
| * of 4:4:4 subsampling when given RGB32 source image. |
| */ |
| if (ctx->out_q.fmt->fourcc == V4L2_PIX_FMT_RGB32) |
| *ctrl_val = 0; |
| break; |
| case SJPEG_EXYNOS4: |
| /* |
| * The exynos4x12 device requires input raw image fourcc |
| * to be V4L2_PIX_FMT_GREY if gray jpeg format |
| * is to be set. |
| */ |
| if (ctx->out_q.fmt->fourcc != V4L2_PIX_FMT_GREY && |
| *ctrl_val == V4L2_JPEG_CHROMA_SUBSAMPLING_GRAY) |
| return -EINVAL; |
| break; |
| } |
| |
| /* |
| * The exynos4x12 and exynos3250/compatible devices require resulting |
| * jpeg subsampling not to be lower than the input raw image |
| * subsampling. |
| */ |
| if (ctx->out_q.fmt->subsampling > *ctrl_val) |
| *ctrl_val = ctx->out_q.fmt->subsampling; |
| |
| return 0; |
| } |
| |
| static int s5p_jpeg_try_ctrl(struct v4l2_ctrl *ctrl) |
| { |
| struct s5p_jpeg_ctx *ctx = ctrl_to_ctx(ctrl); |
| unsigned long flags; |
| int ret = 0; |
| |
| spin_lock_irqsave(&ctx->jpeg->slock, flags); |
| |
| if (ctrl->id == V4L2_CID_JPEG_CHROMA_SUBSAMPLING) |
| ret = s5p_jpeg_adjust_subs_ctrl(ctx, &ctrl->val); |
| |
| spin_unlock_irqrestore(&ctx->jpeg->slock, flags); |
| return ret; |
| } |
| |
| static int s5p_jpeg_s_ctrl(struct v4l2_ctrl *ctrl) |
| { |
| struct s5p_jpeg_ctx *ctx = ctrl_to_ctx(ctrl); |
| unsigned long flags; |
| |
| spin_lock_irqsave(&ctx->jpeg->slock, flags); |
| |
| switch (ctrl->id) { |
| case V4L2_CID_JPEG_COMPRESSION_QUALITY: |
| ctx->compr_quality = ctrl->val; |
| break; |
| case V4L2_CID_JPEG_RESTART_INTERVAL: |
| ctx->restart_interval = ctrl->val; |
| break; |
| case V4L2_CID_JPEG_CHROMA_SUBSAMPLING: |
| ctx->subsampling = ctrl->val; |
| break; |
| } |
| |
| spin_unlock_irqrestore(&ctx->jpeg->slock, flags); |
| return 0; |
| } |
| |
| static const struct v4l2_ctrl_ops s5p_jpeg_ctrl_ops = { |
| .g_volatile_ctrl = s5p_jpeg_g_volatile_ctrl, |
| .try_ctrl = s5p_jpeg_try_ctrl, |
| .s_ctrl = s5p_jpeg_s_ctrl, |
| }; |
| |
| static int s5p_jpeg_controls_create(struct s5p_jpeg_ctx *ctx) |
| { |
| unsigned int mask = ~0x27; /* 444, 422, 420, GRAY */ |
| struct v4l2_ctrl *ctrl; |
| int ret; |
| |
| v4l2_ctrl_handler_init(&ctx->ctrl_handler, 3); |
| |
| if (ctx->mode == S5P_JPEG_ENCODE) { |
| v4l2_ctrl_new_std(&ctx->ctrl_handler, &s5p_jpeg_ctrl_ops, |
| V4L2_CID_JPEG_COMPRESSION_QUALITY, |
| 0, 3, 1, S5P_JPEG_COMPR_QUAL_WORST); |
| |
| v4l2_ctrl_new_std(&ctx->ctrl_handler, &s5p_jpeg_ctrl_ops, |
| V4L2_CID_JPEG_RESTART_INTERVAL, |
| 0, 0xffff, 1, 0); |
| if (ctx->jpeg->variant->version == SJPEG_S5P) |
| mask = ~0x06; /* 422, 420 */ |
| } |
| |
| ctrl = v4l2_ctrl_new_std_menu(&ctx->ctrl_handler, &s5p_jpeg_ctrl_ops, |
| V4L2_CID_JPEG_CHROMA_SUBSAMPLING, |
| V4L2_JPEG_CHROMA_SUBSAMPLING_GRAY, mask, |
| V4L2_JPEG_CHROMA_SUBSAMPLING_422); |
| |
| if (ctx->ctrl_handler.error) { |
| ret = ctx->ctrl_handler.error; |
| goto error_free; |
| } |
| |
| if (ctx->mode == S5P_JPEG_DECODE) |
| ctrl->flags |= V4L2_CTRL_FLAG_VOLATILE | |
| V4L2_CTRL_FLAG_READ_ONLY; |
| |
| ret = v4l2_ctrl_handler_setup(&ctx->ctrl_handler); |
| if (ret < 0) |
| goto error_free; |
| |
| return ret; |
| |
| error_free: |
| v4l2_ctrl_handler_free(&ctx->ctrl_handler); |
| return ret; |
| } |
| |
| static const struct v4l2_ioctl_ops s5p_jpeg_ioctl_ops = { |
| .vidioc_querycap = s5p_jpeg_querycap, |
| |
| .vidioc_enum_fmt_vid_cap = s5p_jpeg_enum_fmt_vid_cap, |
| .vidioc_enum_fmt_vid_out = s5p_jpeg_enum_fmt_vid_out, |
| |
| .vidioc_g_fmt_vid_cap = s5p_jpeg_g_fmt, |
| .vidioc_g_fmt_vid_out = s5p_jpeg_g_fmt, |
| |
| .vidioc_try_fmt_vid_cap = s5p_jpeg_try_fmt_vid_cap, |
| .vidioc_try_fmt_vid_out = s5p_jpeg_try_fmt_vid_out, |
| |
| .vidioc_s_fmt_vid_cap = s5p_jpeg_s_fmt_vid_cap, |
| .vidioc_s_fmt_vid_out = s5p_jpeg_s_fmt_vid_out, |
| |
| .vidioc_reqbufs = v4l2_m2m_ioctl_reqbufs, |
| .vidioc_querybuf = v4l2_m2m_ioctl_querybuf, |
| .vidioc_qbuf = v4l2_m2m_ioctl_qbuf, |
| .vidioc_dqbuf = v4l2_m2m_ioctl_dqbuf, |
| |
| .vidioc_streamon = v4l2_m2m_ioctl_streamon, |
| .vidioc_streamoff = v4l2_m2m_ioctl_streamoff, |
| |
| .vidioc_g_selection = s5p_jpeg_g_selection, |
| .vidioc_s_selection = s5p_jpeg_s_selection, |
| |
| .vidioc_subscribe_event = s5p_jpeg_subscribe_event, |
| .vidioc_unsubscribe_event = v4l2_event_unsubscribe, |
| }; |
| |
| /* |
| * ============================================================================ |
| * mem2mem callbacks |
| * ============================================================================ |
| */ |
| |
| static void s5p_jpeg_device_run(void *priv) |
| { |
| struct s5p_jpeg_ctx *ctx = priv; |
| struct s5p_jpeg *jpeg = ctx->jpeg; |
| struct vb2_v4l2_buffer *src_buf, *dst_buf; |
| unsigned long src_addr, dst_addr, flags; |
| |
| spin_lock_irqsave(&ctx->jpeg->slock, flags); |
| |
| src_buf = v4l2_m2m_next_src_buf(ctx->fh.m2m_ctx); |
| dst_buf = v4l2_m2m_next_dst_buf(ctx->fh.m2m_ctx); |
| src_addr = vb2_dma_contig_plane_dma_addr(&src_buf->vb2_buf, 0); |
| dst_addr = vb2_dma_contig_plane_dma_addr(&dst_buf->vb2_buf, 0); |
| |
| s5p_jpeg_reset(jpeg->regs); |
| s5p_jpeg_poweron(jpeg->regs); |
| s5p_jpeg_proc_mode(jpeg->regs, ctx->mode); |
| if (ctx->mode == S5P_JPEG_ENCODE) { |
| if (ctx->out_q.fmt->fourcc == V4L2_PIX_FMT_RGB565) |
| s5p_jpeg_input_raw_mode(jpeg->regs, |
| S5P_JPEG_RAW_IN_565); |
| else |
| s5p_jpeg_input_raw_mode(jpeg->regs, |
| S5P_JPEG_RAW_IN_422); |
| s5p_jpeg_subsampling_mode(jpeg->regs, ctx->subsampling); |
| s5p_jpeg_dri(jpeg->regs, ctx->restart_interval); |
| s5p_jpeg_x(jpeg->regs, ctx->out_q.w); |
| s5p_jpeg_y(jpeg->regs, ctx->out_q.h); |
| s5p_jpeg_imgadr(jpeg->regs, src_addr); |
| s5p_jpeg_jpgadr(jpeg->regs, dst_addr); |
| |
| /* ultimately comes from sizeimage from userspace */ |
| s5p_jpeg_enc_stream_int(jpeg->regs, ctx->cap_q.size); |
| |
| /* JPEG RGB to YCbCr conversion matrix */ |
| s5p_jpeg_coef(jpeg->regs, 1, 1, S5P_JPEG_COEF11); |
| s5p_jpeg_coef(jpeg->regs, 1, 2, S5P_JPEG_COEF12); |
| s5p_jpeg_coef(jpeg->regs, 1, 3, S5P_JPEG_COEF13); |
| s5p_jpeg_coef(jpeg->regs, 2, 1, S5P_JPEG_COEF21); |
| s5p_jpeg_coef(jpeg->regs, 2, 2, S5P_JPEG_COEF22); |
| s5p_jpeg_coef(jpeg->regs, 2, 3, S5P_JPEG_COEF23); |
| s5p_jpeg_coef(jpeg->regs, 3, 1, S5P_JPEG_COEF31); |
| s5p_jpeg_coef(jpeg->regs, 3, 2, S5P_JPEG_COEF32); |
| s5p_jpeg_coef(jpeg->regs, 3, 3, S5P_JPEG_COEF33); |
| |
| /* |
| * JPEG IP allows storing 4 quantization tables |
| * We fill table 0 for luma and table 1 for chroma |
| */ |
| s5p_jpeg_set_qtbl_lum(jpeg->regs, ctx->compr_quality); |
| s5p_jpeg_set_qtbl_chr(jpeg->regs, ctx->compr_quality); |
| /* use table 0 for Y */ |
| s5p_jpeg_qtbl(jpeg->regs, 1, 0); |
| /* use table 1 for Cb and Cr*/ |
| s5p_jpeg_qtbl(jpeg->regs, 2, 1); |
| s5p_jpeg_qtbl(jpeg->regs, 3, 1); |
| |
| /* Y, Cb, Cr use Huffman table 0 */ |
| s5p_jpeg_htbl_ac(jpeg->regs, 1); |
| s5p_jpeg_htbl_dc(jpeg->regs, 1); |
| s5p_jpeg_htbl_ac(jpeg->regs, 2); |
| s5p_jpeg_htbl_dc(jpeg->regs, 2); |
| s5p_jpeg_htbl_ac(jpeg->regs, 3); |
| s5p_jpeg_htbl_dc(jpeg->regs, 3); |
| } else { /* S5P_JPEG_DECODE */ |
| s5p_jpeg_rst_int_enable(jpeg->regs, true); |
| s5p_jpeg_data_num_int_enable(jpeg->regs, true); |
| s5p_jpeg_final_mcu_num_int_enable(jpeg->regs, true); |
| if (ctx->cap_q.fmt->fourcc == V4L2_PIX_FMT_YUYV) |
| s5p_jpeg_outform_raw(jpeg->regs, S5P_JPEG_RAW_OUT_422); |
| else |
| s5p_jpeg_outform_raw(jpeg->regs, S5P_JPEG_RAW_OUT_420); |
| s5p_jpeg_jpgadr(jpeg->regs, src_addr); |
| s5p_jpeg_imgadr(jpeg->regs, dst_addr); |
| } |
| |
| s5p_jpeg_start(jpeg->regs); |
| |
| spin_unlock_irqrestore(&ctx->jpeg->slock, flags); |
| } |
| |
| static void exynos4_jpeg_set_img_addr(struct s5p_jpeg_ctx *ctx) |
| { |
| struct s5p_jpeg *jpeg = ctx->jpeg; |
| struct s5p_jpeg_fmt *fmt; |
| struct vb2_v4l2_buffer *vb; |
| struct s5p_jpeg_addr jpeg_addr = {}; |
| u32 pix_size, padding_bytes = 0; |
| |
| jpeg_addr.cb = 0; |
| jpeg_addr.cr = 0; |
| |
| pix_size = ctx->cap_q.w * ctx->cap_q.h; |
| |
| if (ctx->mode == S5P_JPEG_ENCODE) { |
| vb = v4l2_m2m_next_src_buf(ctx->fh.m2m_ctx); |
| fmt = ctx->out_q.fmt; |
| if (ctx->out_q.w % 2 && fmt->h_align > 0) |
| padding_bytes = ctx->out_q.h; |
| } else { |
| fmt = ctx->cap_q.fmt; |
| vb = v4l2_m2m_next_dst_buf(ctx->fh.m2m_ctx); |
| } |
| |
| jpeg_addr.y = vb2_dma_contig_plane_dma_addr(&vb->vb2_buf, 0); |
| |
| if (fmt->colplanes == 2) { |
| jpeg_addr.cb = jpeg_addr.y + pix_size - padding_bytes; |
| } else if (fmt->colplanes == 3) { |
| jpeg_addr.cb = jpeg_addr.y + pix_size; |
| if (fmt->fourcc == V4L2_PIX_FMT_YUV420) |
| jpeg_addr.cr = jpeg_addr.cb + pix_size / 4; |
| else |
| jpeg_addr.cr = jpeg_addr.cb + pix_size / 2; |
| } |
| |
| exynos4_jpeg_set_frame_buf_address(jpeg->regs, &jpeg_addr); |
| } |
| |
| static void exynos4_jpeg_set_jpeg_addr(struct s5p_jpeg_ctx *ctx) |
| { |
| struct s5p_jpeg *jpeg = ctx->jpeg; |
| struct vb2_v4l2_buffer *vb; |
| unsigned int jpeg_addr = 0; |
| |
| if (ctx->mode == S5P_JPEG_ENCODE) |
| vb = v4l2_m2m_next_dst_buf(ctx->fh.m2m_ctx); |
| else |
| vb = v4l2_m2m_next_src_buf(ctx->fh.m2m_ctx); |
| |
| jpeg_addr = vb2_dma_contig_plane_dma_addr(&vb->vb2_buf, 0); |
| if (jpeg->variant->version == SJPEG_EXYNOS5433 && |
| ctx->mode == S5P_JPEG_DECODE) |
| jpeg_addr += ctx->out_q.sos; |
| exynos4_jpeg_set_stream_buf_address(jpeg->regs, jpeg_addr); |
| } |
| |
| static inline void exynos4_jpeg_set_img_fmt(void __iomem *base, |
| unsigned int img_fmt) |
| { |
| __exynos4_jpeg_set_img_fmt(base, img_fmt, SJPEG_EXYNOS4); |
| } |
| |
| static inline void exynos5433_jpeg_set_img_fmt(void __iomem *base, |
| unsigned int img_fmt) |
| { |
| __exynos4_jpeg_set_img_fmt(base, img_fmt, SJPEG_EXYNOS5433); |
| } |
| |
| static inline void exynos4_jpeg_set_enc_out_fmt(void __iomem *base, |
| unsigned int out_fmt) |
| { |
| __exynos4_jpeg_set_enc_out_fmt(base, out_fmt, SJPEG_EXYNOS4); |
| } |
| |
| static inline void exynos5433_jpeg_set_enc_out_fmt(void __iomem *base, |
| unsigned int out_fmt) |
| { |
| __exynos4_jpeg_set_enc_out_fmt(base, out_fmt, SJPEG_EXYNOS5433); |
| } |
| |
| static void exynos4_jpeg_device_run(void *priv) |
| { |
| struct s5p_jpeg_ctx *ctx = priv; |
| struct s5p_jpeg *jpeg = ctx->jpeg; |
| unsigned int bitstream_size; |
| unsigned long flags; |
| |
| spin_lock_irqsave(&jpeg->slock, flags); |
| |
| if (ctx->mode == S5P_JPEG_ENCODE) { |
| exynos4_jpeg_sw_reset(jpeg->regs); |
| exynos4_jpeg_set_interrupt(jpeg->regs, jpeg->variant->version); |
| exynos4_jpeg_set_huf_table_enable(jpeg->regs, 1); |
| |
| exynos4_jpeg_set_huff_tbl(jpeg->regs); |
| |
| /* |
| * JPEG IP allows storing 4 quantization tables |
| * We fill table 0 for luma and table 1 for chroma |
| */ |
| exynos4_jpeg_set_qtbl_lum(jpeg->regs, ctx->compr_quality); |
| exynos4_jpeg_set_qtbl_chr(jpeg->regs, ctx->compr_quality); |
| |
| exynos4_jpeg_set_encode_tbl_select(jpeg->regs, |
| ctx->compr_quality); |
| exynos4_jpeg_set_stream_size(jpeg->regs, ctx->cap_q.w, |
| ctx->cap_q.h); |
| |
| if (ctx->jpeg->variant->version == SJPEG_EXYNOS4) { |
| exynos4_jpeg_set_enc_out_fmt(jpeg->regs, |
| ctx->subsampling); |
| exynos4_jpeg_set_img_fmt(jpeg->regs, |
| ctx->out_q.fmt->fourcc); |
| } else { |
| exynos5433_jpeg_set_enc_out_fmt(jpeg->regs, |
| ctx->subsampling); |
| exynos5433_jpeg_set_img_fmt(jpeg->regs, |
| ctx->out_q.fmt->fourcc); |
| } |
| exynos4_jpeg_set_img_addr(ctx); |
| exynos4_jpeg_set_jpeg_addr(ctx); |
| exynos4_jpeg_set_encode_hoff_cnt(jpeg->regs, |
| ctx->out_q.fmt->fourcc); |
| } else { |
| exynos4_jpeg_sw_reset(jpeg->regs); |
| exynos4_jpeg_set_interrupt(jpeg->regs, |
| jpeg->variant->version); |
| exynos4_jpeg_set_img_addr(ctx); |
| exynos4_jpeg_set_jpeg_addr(ctx); |
| |
| if (jpeg->variant->version == SJPEG_EXYNOS5433) { |
| exynos4_jpeg_parse_huff_tbl(ctx); |
| exynos4_jpeg_parse_decode_h_tbl(ctx); |
| |
| exynos4_jpeg_parse_q_tbl(ctx); |
| exynos4_jpeg_parse_decode_q_tbl(ctx); |
| |
| exynos4_jpeg_set_huf_table_enable(jpeg->regs, 1); |
| |
| exynos4_jpeg_set_stream_size(jpeg->regs, ctx->cap_q.w, |
| ctx->cap_q.h); |
| exynos5433_jpeg_set_enc_out_fmt(jpeg->regs, |
| ctx->subsampling); |
| exynos5433_jpeg_set_img_fmt(jpeg->regs, |
| ctx->cap_q.fmt->fourcc); |
| bitstream_size = DIV_ROUND_UP(ctx->out_q.size, 16); |
| } else { |
| exynos4_jpeg_set_img_fmt(jpeg->regs, |
| ctx->cap_q.fmt->fourcc); |
| bitstream_size = DIV_ROUND_UP(ctx->out_q.size, 32); |
| } |
| |
| exynos4_jpeg_set_dec_bitstream_size(jpeg->regs, bitstream_size); |
| } |
| |
| exynos4_jpeg_set_sys_int_enable(jpeg->regs, 1); |
| exynos4_jpeg_set_enc_dec_mode(jpeg->regs, ctx->mode); |
| |
| spin_unlock_irqrestore(&jpeg->slock, flags); |
| } |
| |
| static void exynos3250_jpeg_set_img_addr(struct s5p_jpeg_ctx *ctx) |
| { |
| struct s5p_jpeg *jpeg = ctx->jpeg; |
| struct s5p_jpeg_fmt *fmt; |
| struct vb2_v4l2_buffer *vb; |
| struct s5p_jpeg_addr jpeg_addr = {}; |
| u32 pix_size; |
| |
| pix_size = ctx->cap_q.w * ctx->cap_q.h; |
| |
| if (ctx->mode == S5P_JPEG_ENCODE) { |
| vb = v4l2_m2m_next_src_buf(ctx->fh.m2m_ctx); |
| fmt = ctx->out_q.fmt; |
| } else { |
| vb = v4l2_m2m_next_dst_buf(ctx->fh.m2m_ctx); |
| fmt = ctx->cap_q.fmt; |
| } |
| |
| jpeg_addr.y = vb2_dma_contig_plane_dma_addr(&vb->vb2_buf, 0); |
| |
| if (fmt->colplanes == 2) { |
| jpeg_addr.cb = jpeg_addr.y + pix_size; |
| } else if (fmt->colplanes == 3) { |
| jpeg_addr.cb = jpeg_addr.y + pix_size; |
| if (fmt->fourcc == V4L2_PIX_FMT_YUV420) |
| jpeg_addr.cr = jpeg_addr.cb + pix_size / 4; |
| else |
| jpeg_addr.cr = jpeg_addr.cb + pix_size / 2; |
| } |
| |
| exynos3250_jpeg_imgadr(jpeg->regs, &jpeg_addr); |
| } |
| |
| static void exynos3250_jpeg_set_jpeg_addr(struct s5p_jpeg_ctx *ctx) |
| { |
| struct s5p_jpeg *jpeg = ctx->jpeg; |
| struct vb2_v4l2_buffer *vb; |
| unsigned int jpeg_addr = 0; |
| |
| if (ctx->mode == S5P_JPEG_ENCODE) |
| vb = v4l2_m2m_next_dst_buf(ctx->fh.m2m_ctx); |
| else |
| vb = v4l2_m2m_next_src_buf(ctx->fh.m2m_ctx); |
| |
| jpeg_addr = vb2_dma_contig_plane_dma_addr(&vb->vb2_buf, 0); |
| exynos3250_jpeg_jpgadr(jpeg->regs, jpeg_addr); |
| } |
| |
| static void exynos3250_jpeg_device_run(void *priv) |
| { |
| struct s5p_jpeg_ctx *ctx = priv; |
| struct s5p_jpeg *jpeg = ctx->jpeg; |
| unsigned long flags; |
| |
| spin_lock_irqsave(&ctx->jpeg->slock, flags); |
| |
| exynos3250_jpeg_reset(jpeg->regs); |
| exynos3250_jpeg_set_dma_num(jpeg->regs); |
| exynos3250_jpeg_poweron(jpeg->regs); |
| exynos3250_jpeg_clk_set(jpeg->regs); |
| exynos3250_jpeg_proc_mode(jpeg->regs, ctx->mode); |
| |
| if (ctx->mode == S5P_JPEG_ENCODE) { |
| exynos3250_jpeg_input_raw_fmt(jpeg->regs, |
| ctx->out_q.fmt->fourcc); |
| exynos3250_jpeg_dri(jpeg->regs, ctx->restart_interval); |
| |
| /* |
| * JPEG IP allows storing 4 quantization tables |
| * We fill table 0 for luma and table 1 for chroma |
| */ |
| s5p_jpeg_set_qtbl_lum(jpeg->regs, ctx->compr_quality); |
| s5p_jpeg_set_qtbl_chr(jpeg->regs, ctx->compr_quality); |
| /* use table 0 for Y */ |
| exynos3250_jpeg_qtbl(jpeg->regs, 1, 0); |
| /* use table 1 for Cb and Cr*/ |
| exynos3250_jpeg_qtbl(jpeg->regs, 2, 1); |
| exynos3250_jpeg_qtbl(jpeg->regs, 3, 1); |
| |
| /* |
| * Some SoCs require setting Huffman tables before each run |
| */ |
| if (jpeg->variant->htbl_reinit) { |
| s5p_jpeg_set_hdctbl(jpeg->regs); |
| s5p_jpeg_set_hdctblg(jpeg->regs); |
| s5p_jpeg_set_hactbl(jpeg->regs); |
| s5p_jpeg_set_hactblg(jpeg->regs); |
| } |
| |
| /* Y, Cb, Cr use Huffman table 0 */ |
| exynos3250_jpeg_htbl_ac(jpeg->regs, 1); |
| exynos3250_jpeg_htbl_dc(jpeg->regs, 1); |
| exynos3250_jpeg_htbl_ac(jpeg->regs, 2); |
| exynos3250_jpeg_htbl_dc(jpeg->regs, 2); |
| exynos3250_jpeg_htbl_ac(jpeg->regs, 3); |
| exynos3250_jpeg_htbl_dc(jpeg->regs, 3); |
| |
| exynos3250_jpeg_set_x(jpeg->regs, ctx->crop_rect.width); |
| exynos3250_jpeg_set_y(jpeg->regs, ctx->crop_rect.height); |
| exynos3250_jpeg_stride(jpeg->regs, ctx->out_q.fmt->fourcc, |
| ctx->out_q.w); |
| exynos3250_jpeg_offset(jpeg->regs, ctx->crop_rect.left, |
| ctx->crop_rect.top); |
| exynos3250_jpeg_set_img_addr(ctx); |
| exynos3250_jpeg_set_jpeg_addr(ctx); |
| exynos3250_jpeg_subsampling_mode(jpeg->regs, ctx->subsampling); |
| |
| /* ultimately comes from sizeimage from userspace */ |
| exynos3250_jpeg_enc_stream_bound(jpeg->regs, ctx->cap_q.size); |
| |
| if (ctx->out_q.fmt->fourcc == V4L2_PIX_FMT_RGB565 || |
| ctx->out_q.fmt->fourcc == V4L2_PIX_FMT_RGB565X || |
| ctx->out_q.fmt->fourcc == V4L2_PIX_FMT_RGB32) |
| exynos3250_jpeg_set_y16(jpeg->regs, true); |
| } else { |
| exynos3250_jpeg_set_img_addr(ctx); |
| exynos3250_jpeg_set_jpeg_addr(ctx); |
| exynos3250_jpeg_stride(jpeg->regs, ctx->cap_q.fmt->fourcc, |
| ctx->cap_q.w); |
| exynos3250_jpeg_offset(jpeg->regs, 0, 0); |
| exynos3250_jpeg_dec_scaling_ratio(jpeg->regs, |
| ctx->scale_factor); |
| exynos3250_jpeg_dec_stream_size(jpeg->regs, ctx->out_q.size); |
| exynos3250_jpeg_output_raw_fmt(jpeg->regs, |
| ctx->cap_q.fmt->fourcc); |
| } |
| |
| exynos3250_jpeg_interrupts_enable(jpeg->regs); |
| |
| /* JPEG RGB to YCbCr conversion matrix */ |
| exynos3250_jpeg_coef(jpeg->regs, ctx->mode); |
| |
| exynos3250_jpeg_set_timer(jpeg->regs, EXYNOS3250_IRQ_TIMEOUT); |
| jpeg->irq_status = 0; |
| exynos3250_jpeg_start(jpeg->regs); |
| |
| spin_unlock_irqrestore(&ctx->jpeg->slock, flags); |
| } |
| |
| static int s5p_jpeg_job_ready(void *priv) |
| { |
| struct s5p_jpeg_ctx *ctx = priv; |
| |
| if (ctx->mode == S5P_JPEG_DECODE) { |
| /* |
| * We have only one input buffer and one output buffer. If there |
| * is a resolution change event, no need to continue decoding. |
| */ |
| if (ctx->state == JPEGCTX_RESOLUTION_CHANGE) |
| return 0; |
| |
| return ctx->hdr_parsed; |
| } |
| |
| return 1; |
| } |
| |
| static struct v4l2_m2m_ops s5p_jpeg_m2m_ops = { |
| .device_run = s5p_jpeg_device_run, |
| .job_ready = s5p_jpeg_job_ready, |
| }; |
| |
| static struct v4l2_m2m_ops exynos3250_jpeg_m2m_ops = { |
| .device_run = exynos3250_jpeg_device_run, |
| .job_ready = s5p_jpeg_job_ready, |
| }; |
| |
| static struct v4l2_m2m_ops exynos4_jpeg_m2m_ops = { |
| .device_run = exynos4_jpeg_device_run, |
| .job_ready = s5p_jpeg_job_ready, |
| }; |
| |
| /* |
| * ============================================================================ |
| * Queue operations |
| * ============================================================================ |
| */ |
| |
| static int s5p_jpeg_queue_setup(struct vb2_queue *vq, |
| unsigned int *nbuffers, unsigned int *nplanes, |
| unsigned int sizes[], struct device *alloc_devs[]) |
| { |
| struct s5p_jpeg_ctx *ctx = vb2_get_drv_priv(vq); |
| struct s5p_jpeg_q_data *q_data = NULL; |
| unsigned int size, count = *nbuffers; |
| |
| q_data = get_q_data(ctx, vq->type); |
| BUG_ON(q_data == NULL); |
| |
| size = q_data->size; |
| |
| /* |
| * header is parsed during decoding and parsed information stored |
| * in the context so we do not allow another buffer to overwrite it |
| */ |
| if (ctx->mode == S5P_JPEG_DECODE) |
| count = 1; |
| |
| *nbuffers = count; |
| *nplanes = 1; |
| sizes[0] = size; |
| |
| return 0; |
| } |
| |
| static int s5p_jpeg_buf_prepare(struct vb2_buffer *vb) |
| { |
| struct s5p_jpeg_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue); |
| struct s5p_jpeg_q_data *q_data = NULL; |
| |
| q_data = get_q_data(ctx, vb->vb2_queue->type); |
| BUG_ON(q_data == NULL); |
| |
| if (vb2_plane_size(vb, 0) < q_data->size) { |
| pr_err("%s data will not fit into plane (%lu < %lu)\n", |
| __func__, vb2_plane_size(vb, 0), |
| (long)q_data->size); |
| return -EINVAL; |
| } |
| |
| vb2_set_plane_payload(vb, 0, q_data->size); |
| |
| return 0; |
| } |
| |
| static void s5p_jpeg_set_capture_queue_data(struct s5p_jpeg_ctx *ctx) |
| { |
| struct s5p_jpeg_q_data *q_data = &ctx->cap_q; |
| |
| q_data->w = ctx->out_q.w; |
| q_data->h = ctx->out_q.h; |
| |
| /* |
| * This call to jpeg_bound_align_image() takes care of width and |
| * height values alignment when user space calls the QBUF of |
| * OUTPUT buffer after the S_FMT of CAPTURE buffer. |
| * Please note that on Exynos4x12 SoCs, resigning from executing |
| * S_FMT on capture buffer for each JPEG image can result in a |
| * hardware hangup if subsampling is lower than the one of input |
| * JPEG. |
| */ |
| jpeg_bound_align_image(ctx, &q_data->w, S5P_JPEG_MIN_WIDTH, |
| S5P_JPEG_MAX_WIDTH, q_data->fmt->h_align, |
| &q_data->h, S5P_JPEG_MIN_HEIGHT, |
| S5P_JPEG_MAX_HEIGHT, q_data->fmt->v_align); |
| |
| q_data->size = q_data->w * q_data->h * q_data->fmt->depth >> 3; |
| } |
| |
| static void s5p_jpeg_buf_queue(struct vb2_buffer *vb) |
| { |
| struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); |
| struct s5p_jpeg_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue); |
| |
| if (ctx->mode == S5P_JPEG_DECODE && |
| vb->vb2_queue->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) { |
| static const struct v4l2_event ev_src_ch = { |
| .type = V4L2_EVENT_SOURCE_CHANGE, |
| .u.src_change.changes = V4L2_EVENT_SRC_CH_RESOLUTION, |
| }; |
| struct vb2_queue *dst_vq; |
| u32 ori_w; |
| u32 ori_h; |
| |
| dst_vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, |
| V4L2_BUF_TYPE_VIDEO_CAPTURE); |
| ori_w = ctx->out_q.w; |
| ori_h = ctx->out_q.h; |
| |
| ctx->hdr_parsed = s5p_jpeg_parse_hdr(&ctx->out_q, |
| (unsigned long)vb2_plane_vaddr(vb, 0), |
| min((unsigned long)ctx->out_q.size, |
| vb2_get_plane_payload(vb, 0)), ctx); |
| if (!ctx->hdr_parsed) { |
| vb2_buffer_done(vb, VB2_BUF_STATE_ERROR); |
| return; |
| } |
| |
| /* |
| * If there is a resolution change event, only update capture |
| * queue when it is not streaming. Otherwise, update it in |
| * STREAMOFF. See s5p_jpeg_stop_streaming for detail. |
| */ |
| if (ctx->out_q.w != ori_w || ctx->out_q.h != ori_h) { |
| v4l2_event_queue_fh(&ctx->fh, &ev_src_ch); |
| if (vb2_is_streaming(dst_vq)) |
| ctx->state = JPEGCTX_RESOLUTION_CHANGE; |
| else |
| s5p_jpeg_set_capture_queue_data(ctx); |
| } |
| } |
| |
| v4l2_m2m_buf_queue(ctx->fh.m2m_ctx, vbuf); |
| } |
| |
| static int s5p_jpeg_start_streaming(struct vb2_queue *q, unsigned int count) |
| { |
| struct s5p_jpeg_ctx *ctx = vb2_get_drv_priv(q); |
| int ret; |
| |
| ret = pm_runtime_get_sync(ctx->jpeg->dev); |
| |
| return ret > 0 ? 0 : ret; |
| } |
| |
| static void s5p_jpeg_stop_streaming(struct vb2_queue *q) |
| { |
| struct s5p_jpeg_ctx *ctx = vb2_get_drv_priv(q); |
| |
| /* |
| * STREAMOFF is an acknowledgment for resolution change event. |
| * Before STREAMOFF, we still have to return the old resolution and |
| * subsampling. Update capture queue when the stream is off. |
| */ |
| if (ctx->state == JPEGCTX_RESOLUTION_CHANGE && |
| q->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) { |
| s5p_jpeg_set_capture_queue_data(ctx); |
| ctx->state = JPEGCTX_RUNNING; |
| } |
| |
| pm_runtime_put(ctx->jpeg->dev); |
| } |
| |
| static const struct vb2_ops s5p_jpeg_qops = { |
| .queue_setup = s5p_jpeg_queue_setup, |
| .buf_prepare = s5p_jpeg_buf_prepare, |
| .buf_queue = s5p_jpeg_buf_queue, |
| .wait_prepare = vb2_ops_wait_prepare, |
| .wait_finish = vb2_ops_wait_finish, |
| .start_streaming = s5p_jpeg_start_streaming, |
| .stop_streaming = s5p_jpeg_stop_streaming, |
| }; |
| |
| static int queue_init(void *priv, struct vb2_queue *src_vq, |
| struct vb2_queue *dst_vq) |
| { |
| struct s5p_jpeg_ctx *ctx = priv; |
| int ret; |
| |
| src_vq->type = V4L2_BUF_TYPE_VIDEO_OUTPUT; |
| src_vq->io_modes = VB2_MMAP | VB2_USERPTR; |
| src_vq->drv_priv = ctx; |
| src_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer); |
| src_vq->ops = &s5p_jpeg_qops; |
| src_vq->mem_ops = &vb2_dma_contig_memops; |
| src_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY; |
| src_vq->lock = &ctx->jpeg->lock; |
| src_vq->dev = ctx->jpeg->dev; |
| |
| ret = vb2_queue_init(src_vq); |
| if (ret) |
| return ret; |
| |
| dst_vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; |
| dst_vq->io_modes = VB2_MMAP | VB2_USERPTR; |
| dst_vq->drv_priv = ctx; |
| dst_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer); |
| dst_vq->ops = &s5p_jpeg_qops; |
| dst_vq->mem_ops = &vb2_dma_contig_memops; |
| dst_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY; |
| dst_vq->lock = &ctx->jpeg->lock; |
| dst_vq->dev = ctx->jpeg->dev; |
| |
| return vb2_queue_init(dst_vq); |
| } |
| |
| /* |
| * ============================================================================ |
| * ISR |
| * ============================================================================ |
| */ |
| |
| static irqreturn_t s5p_jpeg_irq(int irq, void *dev_id) |
| { |
| struct s5p_jpeg *jpeg = dev_id; |
| struct s5p_jpeg_ctx *curr_ctx; |
| struct vb2_v4l2_buffer *src_buf, *dst_buf; |
| unsigned long payload_size = 0; |
| enum vb2_buffer_state state = VB2_BUF_STATE_DONE; |
| bool enc_jpeg_too_large = false; |
| bool timer_elapsed = false; |
| bool op_completed = false; |
| |
| spin_lock(&jpeg->slock); |
| |
| curr_ctx = v4l2_m2m_get_curr_priv(jpeg->m2m_dev); |
| |
| src_buf = v4l2_m2m_src_buf_remove(curr_ctx->fh.m2m_ctx); |
| dst_buf = v4l2_m2m_dst_buf_remove(curr_ctx->fh.m2m_ctx); |
| |
| if (curr_ctx->mode == S5P_JPEG_ENCODE) |
| enc_jpeg_too_large = s5p_jpeg_enc_stream_stat(jpeg->regs); |
| timer_elapsed = s5p_jpeg_timer_stat(jpeg->regs); |
| op_completed = s5p_jpeg_result_stat_ok(jpeg->regs); |
| if (curr_ctx->mode == S5P_JPEG_DECODE) |
| op_completed = op_completed && |
| s5p_jpeg_stream_stat_ok(jpeg->regs); |
| |
| if (enc_jpeg_too_large) { |
| state = VB2_BUF_STATE_ERROR; |
| s5p_jpeg_clear_enc_stream_stat(jpeg->regs); |
| } else if (timer_elapsed) { |
| state = VB2_BUF_STATE_ERROR; |
| s5p_jpeg_clear_timer_stat(jpeg->regs); |
| } else if (!op_completed) { |
| state = VB2_BUF_STATE_ERROR; |
| } else { |
| payload_size = s5p_jpeg_compressed_size(jpeg->regs); |
| } |
| |
| dst_buf->timecode = src_buf->timecode; |
| dst_buf->vb2_buf.timestamp = src_buf->vb2_buf.timestamp; |
| dst_buf->flags &= ~V4L2_BUF_FLAG_TSTAMP_SRC_MASK; |
| dst_buf->flags |= |
| src_buf->flags & V4L2_BUF_FLAG_TSTAMP_SRC_MASK; |
| |
| v4l2_m2m_buf_done(src_buf, state); |
| if (curr_ctx->mode == S5P_JPEG_ENCODE) |
| vb2_set_plane_payload(&dst_buf->vb2_buf, 0, payload_size); |
| v4l2_m2m_buf_done(dst_buf, state); |
| |
| curr_ctx->subsampling = s5p_jpeg_get_subsampling_mode(jpeg->regs); |
| spin_unlock(&jpeg->slock); |
| |
| s5p_jpeg_clear_int(jpeg->regs); |
| |
| v4l2_m2m_job_finish(jpeg->m2m_dev, curr_ctx->fh.m2m_ctx); |
| return IRQ_HANDLED; |
| } |
| |
| static irqreturn_t exynos4_jpeg_irq(int irq, void *priv) |
| { |
| unsigned int int_status; |
| struct vb2_v4l2_buffer *src_vb, *dst_vb; |
| struct s5p_jpeg *jpeg = priv; |
| struct s5p_jpeg_ctx *curr_ctx; |
| unsigned long payload_size = 0; |
| |
| spin_lock(&jpeg->slock); |
| |
| exynos4_jpeg_set_sys_int_enable(jpeg->regs, 0); |
| |
| curr_ctx = v4l2_m2m_get_curr_priv(jpeg->m2m_dev); |
| |
| src_vb = v4l2_m2m_src_buf_remove(curr_ctx->fh.m2m_ctx); |
| dst_vb = v4l2_m2m_dst_buf_remove(curr_ctx->fh.m2m_ctx); |
| |
| int_status = exynos4_jpeg_get_int_status(jpeg->regs); |
| |
| if (int_status) { |
| switch (int_status & 0x1f) { |
| case 0x1: |
| jpeg->irq_ret = ERR_PROT; |
| break; |
| case 0x2: |
| jpeg->irq_ret = OK_ENC_OR_DEC; |
| break; |
| case 0x4: |
| jpeg->irq_ret = ERR_DEC_INVALID_FORMAT; |
| break; |
| case 0x8: |
| jpeg->irq_ret = ERR_MULTI_SCAN; |
| break; |
| case 0x10: |
| jpeg->irq_ret = ERR_FRAME; |
| break; |
| default: |
| jpeg->irq_ret = ERR_UNKNOWN; |
| break; |
| } |
| } else { |
| jpeg->irq_ret = ERR_UNKNOWN; |
| } |
| |
| if (jpeg->irq_ret == OK_ENC_OR_DEC) { |
| if (curr_ctx->mode == S5P_JPEG_ENCODE) { |
| payload_size = exynos4_jpeg_get_stream_size(jpeg->regs); |
| vb2_set_plane_payload(&dst_vb->vb2_buf, |
| 0, payload_size); |
| } |
| v4l2_m2m_buf_done(src_vb, VB2_BUF_STATE_DONE); |
| v4l2_m2m_buf_done(dst_vb, VB2_BUF_STATE_DONE); |
| } else { |
| v4l2_m2m_buf_done(src_vb, VB2_BUF_STATE_ERROR); |
| v4l2_m2m_buf_done(dst_vb, VB2_BUF_STATE_ERROR); |
| } |
| |
| if (jpeg->variant->version == SJPEG_EXYNOS4) |
| curr_ctx->subsampling = exynos4_jpeg_get_frame_fmt(jpeg->regs); |
| |
| exynos4_jpeg_set_enc_dec_mode(jpeg->regs, S5P_JPEG_DISABLE); |
| |
| spin_unlock(&jpeg->slock); |
| |
| v4l2_m2m_job_finish(jpeg->m2m_dev, curr_ctx->fh.m2m_ctx); |
| return IRQ_HANDLED; |
| } |
| |
| static irqreturn_t exynos3250_jpeg_irq(int irq, void *dev_id) |
| { |
| struct s5p_jpeg *jpeg = dev_id; |
| struct s5p_jpeg_ctx *curr_ctx; |
| struct vb2_v4l2_buffer *src_buf, *dst_buf; |
| unsigned long payload_size = 0; |
| enum vb2_buffer_state state = VB2_BUF_STATE_DONE; |
| bool interrupt_timeout = false; |
| bool stream_error = false; |
| u32 irq_status; |
| |
| spin_lock(&jpeg->slock); |
| |
| irq_status = exynos3250_jpeg_get_timer_status(jpeg->regs); |
| if (irq_status & EXYNOS3250_TIMER_INT_STAT) { |
| exynos3250_jpeg_clear_timer_status(jpeg->regs); |
| interrupt_timeout = true; |
| dev_err(jpeg->dev, "Interrupt timeout occurred.\n"); |
| } |
| |
| irq_status = exynos3250_jpeg_get_int_status(jpeg->regs); |
| exynos3250_jpeg_clear_int_status(jpeg->regs, irq_status); |
| |
| jpeg->irq_status |= irq_status; |
| |
| if (jpeg->variant->version == SJPEG_EXYNOS5420 && |
| irq_status & EXYNOS3250_STREAM_STAT) { |
| stream_error = true; |
| dev_err(jpeg->dev, "Syntax error or unrecoverable error occurred.\n"); |
| } |
| |
| curr_ctx = v4l2_m2m_get_curr_priv(jpeg->m2m_dev); |
| |
| if (!curr_ctx) |
| goto exit_unlock; |
| |
| if ((irq_status & EXYNOS3250_HEADER_STAT) <
|