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media: dw100: Add i.MX8MP dw100 dewarper driver

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Add a V4L2 mem-to-mem driver for the Vivante DW100 Dewarp Processor IP
core found on i.MX8MP SoC.

The processor core applies a programmable geometrical transformation on
input images to correct distorsion introduced by lenses.
The transformation function is exposed as a grid map with 16x16 pixel
macroblocks indexed using X, Y vertex coordinates.

The dewarping map can be set from application through a dedicated v4l2
control. If not set or invalid, the driver computes an identity map
prior to starting the processing engine.

The driver supports scaling, cropping and pixel format conversion.

Signed-off-by: Xavier Roumegue <xavier.roumegue@oss.nxp.com>
Reviewed-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
This commit is contained in:
Xavier Roumegue 2022-07-30 17:48:42 +02:00 committed by Mauro Carvalho Chehab
parent 1301663c1f
commit cb6d000fca
6 changed files with 1844 additions and 0 deletions
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1
drivers/media/platform/nxp/Kconfig
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@ -51,4 +51,5 @@ config VIDEO_MX2_EMMAPRP
memory to memory. Operations include resizing and format
conversion.
source "drivers/media/platform/nxp/dw100/Kconfig"
source "drivers/media/platform/nxp/imx-jpeg/Kconfig"

1
drivers/media/platform/nxp/Makefile
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@ -1,5 +1,6 @@
# SPDX-License-Identifier: GPL-2.0-only
obj-y += dw100/
obj-y += imx-jpeg/
obj-$(CONFIG_VIDEO_IMX_MIPI_CSIS) += imx-mipi-csis.o

16
drivers/media/platform/nxp/dw100/Kconfig Normal file
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@ -0,0 +1,16 @@
# SPDX-License-Identifier: GPL-2.0-only
config VIDEO_DW100
tristate "NXP i.MX DW100 dewarper"
depends on V4L_MEM2MEM_DRIVERS
depends on VIDEO_DEV
depends on ARCH_MXC || COMPILE_TEST
select MEDIA_CONTROLLER
select V4L2_MEM2MEM_DEV
select VIDEOBUF2_DMA_CONTIG
help
DW100 is a memory-to-memory engine performing geometrical
transformation on source images through a programmable dewarping map.
To compile this driver as a module, choose M here: the module
will be called dw100.

3
drivers/media/platform/nxp/dw100/Makefile Normal file
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@ -0,0 +1,3 @@
# SPDX-License-Identifier: GPL-2.0+
obj-$(CONFIG_VIDEO_DW100) += dw100.o

1706
drivers/media/platform/nxp/dw100/dw100.c Normal file
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File diff suppressed because it is too large Load Diff

117
drivers/media/platform/nxp/dw100/dw100_regs.h Normal file
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@ -0,0 +1,117 @@
/* SPDX-License-Identifier: GPL-2.0+ */
/*
* DW100 Hardware dewarper
*
* Copyright 2022 NXP
* Author: Xavier Roumegue (xavier.roumegue@oss.nxp.com)
*/
#ifndef _DW100_REGS_H_
#define _DW100_REGS_H_
/* AHB register offset */
#define DW100_DEWARP_ID 0x00
#define DW100_DEWARP_CTRL 0x04
#define DW100_DEWARP_CTRL_ENABLE BIT(0)
#define DW100_DEWARP_CTRL_START BIT(1)
#define DW100_DEWARP_CTRL_SOFT_RESET BIT(2)
#define DW100_DEWARP_CTRL_FORMAT_YUV422_SP 0UL
#define DW100_DEWARP_CTRL_FORMAT_YUV422_PACKED 1UL
#define DW100_DEWARP_CTRL_FORMAT_YUV420_SP 2UL
#define DW100_DEWARP_CTRL_INPUT_FORMAT_MASK GENMASK(5, 4)
#define DW100_DEWARP_CTRL_INPUT_FORMAT(x) ((x) << 4)
#define DW100_DEWARP_CTRL_OUTPUT_FORMAT(x) ((x) << 6)
#define DW100_DEWARP_CTRL_OUTPUT_FORMAT_MASK GENMASK(7, 6)
#define DW100_DEWARP_CTRL_SRC_AUTO_SHADOW BIT(8)
#define DW100_DEWARP_CTRL_HW_HANDSHAKE BIT(9)
#define DW100_DEWARP_CTRL_DST_AUTO_SHADOW BIT(10)
#define DW100_DEWARP_CTRL_SPLIT_LINE BIT(11)
#define DW100_DEWARP_CTRL_PREFETCH_MODE_MASK GENMASK(17, 16)
#define DW100_DEWARP_CTRL_PREFETCH_MODE_TRAVERSAL (0UL << 16)
#define DW100_DEWARP_CTRL_PREFETCH_MODE_CALCULATION (1UL << 16)
#define DW100_DEWARP_CTRL_PREFETCH_MODE_AUTO (2UL << 16)
#define DW100_DEWARP_CTRL_PREFETCH_THRESHOLD_MASK GENMASK(24, 18)
#define DW100_DEWARP_CTRL_PREFETCH_THRESHOLD(x) ((x) << 18)
#define DW100_MAP_LUT_ADDR 0x08
#define DW100_MAP_LUT_ADDR_ADDR(addr) (((addr) >> 4) & GENMASK(29, 0))
#define DW100_MAP_LUT_SIZE 0x0c
#define DW100_MAP_LUT_SIZE_WIDTH(w) (((w) & GENMASK(10, 0)) << 0)
#define DW100_MAP_LUT_SIZE_HEIGHT(h) (((h) & GENMASK(10, 0)) << 16)
#define DW100_SRC_IMG_Y_BASE 0x10
#define DW100_IMG_Y_BASE(base) (((base) >> 4) & GENMASK(29, 0))
#define DW100_SRC_IMG_UV_BASE 0x14
#define DW100_IMG_UV_BASE(base) (((base) >> 4) & GENMASK(29, 0))
#define DW100_SRC_IMG_SIZE 0x18
#define DW100_IMG_SIZE_WIDTH(w) (((w) & GENMASK(12, 0)) << 0)
#define DW100_IMG_SIZE_HEIGHT(h) (((h) & GENMASK(12, 0)) << 16)
#define DW100_SRC_IMG_STRIDE 0x1c
#define DW100_MAP_LUT_ADDR2 0x20
#define DW100_MAP_LUT_SIZE2 0x24
#define DW100_SRC_IMG_Y_BASE2 0x28
#define DW100_SRC_IMG_UV_BASE2 0x2c
#define DW100_SRC_IMG_SIZE2 0x30
#define DW100_SRC_IMG_STRIDE2 0x34
#define DW100_DST_IMG_Y_BASE 0x38
#define DW100_DST_IMG_UV_BASE 0x3c
#define DW100_DST_IMG_SIZE 0x40
#define DW100_DST_IMG_STRIDE 0x44
#define DW100_DST_IMG_Y_BASE2 0x48
#define DW100_DST_IMG_UV_BASE2 0x4c
#define DW100_DST_IMG_SIZE2 0x50
#define DW100_DST_IMG_STRIDE2 0x54
#define DW100_SWAP_CONTROL 0x58
#define DW100_SWAP_CONTROL_BYTE BIT(0)
#define DW100_SWAP_CONTROL_SHORT BIT(1)
#define DW100_SWAP_CONTROL_WORD BIT(2)
#define DW100_SWAP_CONTROL_LONG BIT(3)
#define DW100_SWAP_CONTROL_Y(x) (((x) & GENMASK(3, 0)) << 0)
#define DW100_SWAP_CONTROL_UV(x) (((x) & GENMASK(3, 0)) << 4)
#define DW100_SWAP_CONTROL_SRC(x) (((x) & GENMASK(7, 0)) << 0)
#define DW100_SWAP_CONTROL_DST(x) (((x) & GENMASK(7, 0)) << 8)
#define DW100_SWAP_CONTROL_SRC2(x) (((x) & GENMASK(7, 0)) << 16)
#define DW100_SWAP_CONTROL_DST2(x) (((x) & GENMASK(7, 0)) << 24)
#define DW100_SWAP_CONTROL_SRC_MASK GENMASK(7, 0)
#define DW100_SWAP_CONTROL_DST_MASK GENMASK(15, 8)
#define DW100_SWAP_CONTROL_SRC2_MASK GENMASK(23, 16)
#define DW100_SWAP_CONTROL_DST2_MASK GENMASK(31, 24)
#define DW100_VERTICAL_SPLIT_LINE 0x5c
#define DW100_HORIZON_SPLIT_LINE 0x60
#define DW100_SCALE_FACTOR 0x64
#define DW100_ROI_START 0x68
#define DW100_ROI_START_X(x) (((x) & GENMASK(12, 0)) << 0)
#define DW100_ROI_START_Y(y) (((y) & GENMASK(12, 0)) << 16)
#define DW100_BOUNDARY_PIXEL 0x6c
#define DW100_BOUNDARY_PIXEL_V(v) (((v) & GENMASK(7, 0)) << 0)
#define DW100_BOUNDARY_PIXEL_U(u) (((u) & GENMASK(7, 0)) << 8)
#define DW100_BOUNDARY_PIXEL_Y(y) (((y) & GENMASK(7, 0)) << 16)
#define DW100_INTERRUPT_STATUS 0x70
#define DW100_INTERRUPT_STATUS_INT_FRAME_DONE BIT(0)
#define DW100_INTERRUPT_STATUS_INT_ERR_TIME_OUT BIT(1)
#define DW100_INTERRUPT_STATUS_INT_ERR_AXI_RESP BIT(2)
#define DW100_INTERRUPT_STATUS_INT_ERR_X BIT(3)
#define DW100_INTERRUPT_STATUS_INT_ERR_MB_FETCH BIT(4)
#define DW100_INTERRUPT_STATUS_INT_ERR_FRAME2 BIT(5)
#define DW100_INTERRUPT_STATUS_INT_ERR_FRAME3 BIT(6)
#define DW100_INTERRUPT_STATUS_INT_ERR_FRAME_DONE BIT(7)
#define DW100_INTERRUPT_STATUS_INT_ERR_STATUS(x) (((x) >> 1) & 0x7f)
#define DW100_INTERRUPT_STATUS_INT_STATUS(x) ((x) & 0xff)
#define DW100_INTERRUPT_STATUS_INT_ENABLE_MASK GENMASK(15, 8)
#define DW100_INTERRUPT_STATUS_INT_ENABLE(x) (((x) & GENMASK(7, 0)) << 8)
#define DW100_INTERRUPT_STATUS_FRAME_BUSY BIT(16)
#define DW100_INTERRUPT_STATUS_INT_CLEAR(x) (((x) & GENMASK(7, 0)) << 24)
#define DW100_BUS_CTRL 0x74
#define DW100_BUS_CTRL_AXI_MASTER_ENABLE BIT(31)
#define DW100_BUS_CTRL1 0x78
#define DW100_BUS_TIME_OUT_CYCLE 0x7c
#define DW100_DST_IMG_Y_SIZE1 0x80
#define DW100_DST_IMG_Y_SIZE(sz) (((sz) >> 4) & GENMASK(29, 0))
#define DW100_DST_IMG_UV_SIZE(sz) (((sz) >> 4) & GENMASK(29, 0))
#define DW100_DST_IMG_UV_SIZE1 0x84
#define DW100_DST_IMG_Y_SIZE2 0x88
#define DW100_DST_IMG_UV_SIZE2 0x8c
#endif /* _DW100_REGS_H_ */