[media] Exynos4 JPEG codec v4l2 driver
Add driver for the JPEG codec IP block available in Samsung Exynos SoC series.
The driver is implemented as a V4L2 mem-to-mem device. It exposes two video
nodes to user space, one for the encoding part, and one for the decoding part.
Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Reviewed-by: Sakari Ailus <sakari.ailus@iki.fi>
Reviewed-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Reviewed-by: Tomasz Stanislawski <t.stanislaws@samsung.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/drivers/media/video/s5p-jpeg/jpeg-regs.h b/drivers/media/video/s5p-jpeg/jpeg-regs.h
new file mode 100644
index 0000000..91f4dd5
--- /dev/null
+++ b/drivers/media/video/s5p-jpeg/jpeg-regs.h
@@ -0,0 +1,170 @@
+/* linux/drivers/media/video/s5p-jpeg/jpeg-regs.h
+ *
+ * Register definition file for Samsung JPEG codec driver
+ *
+ * Copyright (c) 2011 Samsung Electronics Co., Ltd.
+ * http://www.samsung.com
+ *
+ * Author: Andrzej Pietrasiewicz <andrzej.p@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.
+ */
+
+#ifndef JPEG_REGS_H_
+#define JPEG_REGS_H_
+
+/* JPEG mode register */
+#define S5P_JPGMOD 0x00
+#define S5P_PROC_MODE_MASK (0x1 << 3)
+#define S5P_PROC_MODE_DECOMPR (0x1 << 3)
+#define S5P_PROC_MODE_COMPR (0x0 << 3)
+#define S5P_SUBSAMPLING_MODE_MASK 0x7
+#define S5P_SUBSAMPLING_MODE_444 (0x0 << 0)
+#define S5P_SUBSAMPLING_MODE_422 (0x1 << 0)
+#define S5P_SUBSAMPLING_MODE_420 (0x2 << 0)
+#define S5P_SUBSAMPLING_MODE_GRAY (0x3 << 0)
+
+/* JPEG operation status register */
+#define S5P_JPGOPR 0x04
+
+/* Quantization tables*/
+#define S5P_JPG_QTBL 0x08
+#define S5P_QT_NUMt_SHIFT(t) (((t) - 1) << 1)
+#define S5P_QT_NUMt_MASK(t) (0x3 << S5P_QT_NUMt_SHIFT(t))
+
+/* Huffman tables */
+#define S5P_JPG_HTBL 0x0c
+#define S5P_HT_NUMt_AC_SHIFT(t) (((t) << 1) - 1)
+#define S5P_HT_NUMt_AC_MASK(t) (0x1 << S5P_HT_NUMt_AC_SHIFT(t))
+
+#define S5P_HT_NUMt_DC_SHIFT(t) (((t) - 1) << 1)
+#define S5P_HT_NUMt_DC_MASK(t) (0x1 << S5P_HT_NUMt_DC_SHIFT(t))
+
+/* JPEG restart interval register upper byte */
+#define S5P_JPGDRI_U 0x10
+
+/* JPEG restart interval register lower byte */
+#define S5P_JPGDRI_L 0x14
+
+/* JPEG vertical resolution register upper byte */
+#define S5P_JPGY_U 0x18
+
+/* JPEG vertical resolution register lower byte */
+#define S5P_JPGY_L 0x1c
+
+/* JPEG horizontal resolution register upper byte */
+#define S5P_JPGX_U 0x20
+
+/* JPEG horizontal resolution register lower byte */
+#define S5P_JPGX_L 0x24
+
+/* JPEG byte count register upper byte */
+#define S5P_JPGCNT_U 0x28
+
+/* JPEG byte count register middle byte */
+#define S5P_JPGCNT_M 0x2c
+
+/* JPEG byte count register lower byte */
+#define S5P_JPGCNT_L 0x30
+
+/* JPEG interrupt setting register */
+#define S5P_JPGINTSE 0x34
+#define S5P_RSTm_INT_EN_MASK (0x1 << 7)
+#define S5P_RSTm_INT_EN (0x1 << 7)
+#define S5P_DATA_NUM_INT_EN_MASK (0x1 << 6)
+#define S5P_DATA_NUM_INT_EN (0x1 << 6)
+#define S5P_FINAL_MCU_NUM_INT_EN_MASK (0x1 << 5)
+#define S5P_FINAL_MCU_NUM_INT_EN (0x1 << 5)
+
+/* JPEG interrupt status register */
+#define S5P_JPGINTST 0x38
+#define S5P_RESULT_STAT_SHIFT 6
+#define S5P_RESULT_STAT_MASK (0x1 << S5P_RESULT_STAT_SHIFT)
+#define S5P_STREAM_STAT_SHIFT 5
+#define S5P_STREAM_STAT_MASK (0x1 << S5P_STREAM_STAT_SHIFT)
+
+/* JPEG command register */
+#define S5P_JPGCOM 0x4c
+#define S5P_INT_RELEASE (0x1 << 2)
+
+/* Raw image data r/w address register */
+#define S5P_JPG_IMGADR 0x50
+
+/* JPEG file r/w address register */
+#define S5P_JPG_JPGADR 0x58
+
+/* Coefficient for RGB-to-YCbCr converter register */
+#define S5P_JPG_COEF(n) (0x5c + (((n) - 1) << 2))
+#define S5P_COEFn_SHIFT(j) ((3 - (j)) << 3)
+#define S5P_COEFn_MASK(j) (0xff << S5P_COEFn_SHIFT(j))
+
+/* JPEG color mode register */
+#define S5P_JPGCMOD 0x68
+#define S5P_MOD_SEL_MASK (0x7 << 5)
+#define S5P_MOD_SEL_422 (0x1 << 5)
+#define S5P_MOD_SEL_565 (0x2 << 5)
+#define S5P_MODE_Y16_MASK (0x1 << 1)
+#define S5P_MODE_Y16 (0x1 << 1)
+
+/* JPEG clock control register */
+#define S5P_JPGCLKCON 0x6c
+#define S5P_CLK_DOWN_READY (0x1 << 1)
+#define S5P_POWER_ON (0x1 << 0)
+
+/* JPEG start register */
+#define S5P_JSTART 0x70
+
+/* JPEG SW reset register */
+#define S5P_JPG_SW_RESET 0x78
+
+/* JPEG timer setting register */
+#define S5P_JPG_TIMER_SE 0x7c
+#define S5P_TIMER_INT_EN_MASK (0x1 << 31)
+#define S5P_TIMER_INT_EN (0x1 << 31)
+#define S5P_TIMER_INIT_MASK 0x7fffffff
+
+/* JPEG timer status register */
+#define S5P_JPG_TIMER_ST 0x80
+#define S5P_TIMER_INT_STAT_SHIFT 31
+#define S5P_TIMER_INT_STAT_MASK (0x1 << S5P_TIMER_INT_STAT_SHIFT)
+#define S5P_TIMER_CNT_SHIFT 0
+#define S5P_TIMER_CNT_MASK 0x7fffffff
+
+/* JPEG decompression output format register */
+#define S5P_JPG_OUTFORM 0x88
+#define S5P_DEC_OUT_FORMAT_MASK (0x1 << 0)
+#define S5P_DEC_OUT_FORMAT_422 (0x0 << 0)
+#define S5P_DEC_OUT_FORMAT_420 (0x1 << 0)
+
+/* JPEG version register */
+#define S5P_JPG_VERSION 0x8c
+
+/* JPEG compressed stream size interrupt setting register */
+#define S5P_JPG_ENC_STREAM_INTSE 0x98
+#define S5P_ENC_STREAM_INT_MASK (0x1 << 24)
+#define S5P_ENC_STREAM_INT_EN (0x1 << 24)
+#define S5P_ENC_STREAM_BOUND_MASK 0xffffff
+
+/* JPEG compressed stream size interrupt status register */
+#define S5P_JPG_ENC_STREAM_INTST 0x9c
+#define S5P_ENC_STREAM_INT_STAT_MASK 0x1
+
+/* JPEG quantizer table register */
+#define S5P_JPG_QTBL_CONTENT(n) (0x400 + (n) * 0x100)
+
+/* JPEG DC Huffman table register */
+#define S5P_JPG_HDCTBL(n) (0x800 + (n) * 0x400)
+
+/* JPEG DC Huffman table register */
+#define S5P_JPG_HDCTBLG(n) (0x840 + (n) * 0x400)
+
+/* JPEG AC Huffman table register */
+#define S5P_JPG_HACTBL(n) (0x880 + (n) * 0x400)
+
+/* JPEG AC Huffman table register */
+#define S5P_JPG_HACTBLG(n) (0x8c0 + (n) * 0x400)
+
+#endif /* JPEG_REGS_H_ */
+