From: Keke Li <keke.li@xxxxxxxxxxx>
The C3 ISP supports multi-camera and muti-exposure
high dynamic range (HDR). It brings together some
advanced imaging technologies to provide good image quality.
This driver mainly responsible for driving ISP pipeline
to process raw image.
Signed-off-by: Keke Li <keke.li@xxxxxxxxxxx>
---
drivers/media/platform/amlogic/c3/Kconfig | 1 +
drivers/media/platform/amlogic/c3/Makefile | 1 +
drivers/media/platform/amlogic/c3/isp/Kconfig | 17 +
drivers/media/platform/amlogic/c3/isp/Makefile | 10 +
.../media/platform/amlogic/c3/isp/c3-isp-capture.c | 790 +++++++++++++++++
.../media/platform/amlogic/c3/isp/c3-isp-common.h | 352 ++++++++
.../media/platform/amlogic/c3/isp/c3-isp-core.c | 553 ++++++++++++
drivers/media/platform/amlogic/c3/isp/c3-isp-dev.c | 459 ++++++++++
.../media/platform/amlogic/c3/isp/c3-isp-params.c | 942 +++++++++++++++++++++
.../media/platform/amlogic/c3/isp/c3-isp-regs.h | 599 +++++++++++++
.../media/platform/amlogic/c3/isp/c3-isp-resizer.c | 779 +++++++++++++++++
.../media/platform/amlogic/c3/isp/c3-isp-stats.c | 319 +++++++
12 files changed, 4822 insertions(+)
diff --git a/drivers/media/platform/amlogic/c3/Kconfig b/drivers/media/platform/amlogic/c3/Kconfig
index a504a1eb22e6..d355d3a9358d 100644
--- a/drivers/media/platform/amlogic/c3/Kconfig
+++ b/drivers/media/platform/amlogic/c3/Kconfig
@@ -1,4 +1,5 @@
# SPDX-License-Identifier: GPL-2.0-only
+source "drivers/media/platform/amlogic/c3/isp/Kconfig"
source "drivers/media/platform/amlogic/c3/mipi-adapter/Kconfig"
source "drivers/media/platform/amlogic/c3/mipi-csi2/Kconfig"
diff --git a/drivers/media/platform/amlogic/c3/Makefile b/drivers/media/platform/amlogic/c3/Makefile
index 770b2a2903ad..14f305a493d2 100644
--- a/drivers/media/platform/amlogic/c3/Makefile
+++ b/drivers/media/platform/amlogic/c3/Makefile
@@ -1,4 +1,5 @@
# SPDX-License-Identifier: GPL-2.0-only
+obj-y += isp/
obj-y += mipi-adapter/
obj-y += mipi-csi2/
diff --git a/drivers/media/platform/amlogic/c3/isp/Kconfig b/drivers/media/platform/amlogic/c3/isp/Kconfig
new file mode 100644
index 000000000000..de68d19ca2d1
--- /dev/null
+++ b/drivers/media/platform/amlogic/c3/isp/Kconfig
@@ -0,0 +1,17 @@
+# SPDX-License-Identifier: GPL-2.0-only
+
+config VIDEO_C3_ISP
+ tristate "Amlogic C3 Image Signal Processor (ISP) driver"
+ depends on ARCH_MESON || COMPILE_TEST
+ depends on VIDEO_DEV
+ depends on OF
+ select MEDIA_CONTROLLER
+ select V4L2_FWNODE
+ select VIDEO_V4L2_SUBDEV_API
+ select VIDEOBUF2_DMA_CONTIG
+ help
+ Video4Linux2 driver for Amlogic C3 ISP pipeline.
+ The C3 ISP is used for processing raw images and
+ outputing results to memory.
+
+ To compile this driver as a module choose m here.
diff --git a/drivers/media/platform/amlogic/c3/isp/Makefile b/drivers/media/platform/amlogic/c3/isp/Makefile
new file mode 100644
index 000000000000..b1b064170b57
--- /dev/null
+++ b/drivers/media/platform/amlogic/c3/isp/Makefile
@@ -0,0 +1,10 @@
+# SPDX-License-Identifier: GPL-2.0-only
+
+c3-isp-objs := c3-isp-dev.o \
+ c3-isp-params.o \
+ c3-isp-stats.o \
+ c3-isp-capture.o \
+ c3-isp-core.o \
+ c3-isp-resizer.o
+
+obj-$(CONFIG_VIDEO_C3_ISP) += c3-isp.o
diff --git a/drivers/media/platform/amlogic/c3/isp/c3-isp-capture.c b/drivers/media/platform/amlogic/c3/isp/c3-isp-capture.c
new file mode 100644
index 000000000000..e1bbb3fa8da2
--- /dev/null
+++ b/drivers/media/platform/amlogic/c3/isp/c3-isp-capture.c
@@ -0,0 +1,790 @@
+// SPDX-License-Identifier: (GPL-2.0-only OR MIT)
+/*
+ * Copyright (C) 2024 Amlogic, Inc. All rights reserved
+ */
+
+#include <linux/cleanup.h>
+#include <linux/pm_runtime.h>
+
+#include <media/v4l2-ctrls.h>
+#include <media/v4l2-event.h>
+#include <media/v4l2-ioctl.h>
+#include <media/v4l2-mc.h>
+#include <media/videobuf2-dma-contig.h>
+
+#include "c3-isp-common.h"
+#include "c3-isp-regs.h"
+
+static const struct c3_isp_capture_format cap_formats[] = {
+ {
+ .mbus_code = MEDIA_BUS_FMT_YUV8_1X24,
+ .fourcc = V4L2_PIX_FMT_GREY,
+ }, {
+ .mbus_code = MEDIA_BUS_FMT_YUV8_1X24,
+ .fourcc = V4L2_PIX_FMT_NV12,
+ }, {
+ .mbus_code = MEDIA_BUS_FMT_YUV8_1X24,
+ .fourcc = V4L2_PIX_FMT_NV21,
+ }, {
+ .mbus_code = MEDIA_BUS_FMT_YUV8_1X24,
+ .fourcc = V4L2_PIX_FMT_NV16,
+ }, {
+ .mbus_code = MEDIA_BUS_FMT_YUV8_1X24,
+ .fourcc = V4L2_PIX_FMT_NV61,
+ },
+};
+
+/* Hardware configuration */
+
+/* Set the address of wrmifx3(write memory interface) */
+static void c3_isp_cap_wrmifx3_buff(struct c3_isp_capture *cap)
+{
+ struct v4l2_pix_format *pix = &cap->vfmt.fmt.pix;
+ dma_addr_t dma_addr;
+
+ if (cap->buff)
+ dma_addr = cap->buff->dma_addr;
+ else
+ dma_addr = cap->dummy_buff.dma_addr;
+
+ c3_isp_write(cap->isp,
+ C3_ISP_WRMIFX3_REG(ISP_WRMIFX3_0_CH0_BADDR, cap->id),
+ ISP_WRMIFX3_0_CH0_BASE_ADDR(dma_addr));
+
+ if (pix->pixelformat == V4L2_PIX_FMT_NV12 ||
+ pix->pixelformat == V4L2_PIX_FMT_NV21 ||
+ pix->pixelformat == V4L2_PIX_FMT_NV16 ||
+ pix->pixelformat == V4L2_PIX_FMT_NV61) {
+ u32 offset = ALIGN(pix->width * 1, C3_ISP_DMA_SIZE_ALIGN_BYTES) * pix->height;
+
+ c3_isp_write(cap->isp,
+ C3_ISP_WRMIFX3_REG(ISP_WRMIFX3_0_CH1_BADDR, cap->id),
+ ISP_WRMIFX3_0_CH1_BASE_ADDR(dma_addr + offset));
+ }
+}
+
+static void c3_isp_cap_wrmifx3_grey(struct c3_isp_capture *cap)
+{
+ struct v4l2_pix_format *fmt = &cap->vfmt.fmt.pix;
+ u32 stride;
+
+ c3_isp_update_bits(cap->isp, C3_ISP_WRMIFX3_REG(ISP_WRMIFX3_0_FMT_CTRL, cap->id),
+ ISP_WRMIFX3_0_FMT_CTRL_MTX_IBITS_MASK,
+ ISP_WRMIFX3_0_FMT_CTRL_MTX_IBITS_8BIT);
+
+ /* Grey has 1 plane*/
+ c3_isp_update_bits(cap->isp, C3_ISP_WRMIFX3_REG(ISP_WRMIFX3_0_FMT_CTRL, cap->id),
+ ISP_WRMIFX3_0_FMT_CTRL_MTX_PLANE_MASK,
+ ISP_WRMIFX3_0_FMT_CTRL_MTX_PLANE_X1);
+
+ /* Set Y only as output format */
+ c3_isp_update_bits(cap->isp, C3_ISP_WRMIFX3_REG(ISP_WRMIFX3_0_FMT_CTRL, cap->id),
+ ISP_WRMIFX3_0_FMT_CTRL_MODE_OUT_MASK,
+ ISP_WRMIFX3_0_FMT_CTRL_MODE_OUT_Y_ONLY);
+
+ /* The unit of stride is 16 bytes */
+ stride = DIV_ROUND_UP(fmt->width * 1, 16);
+ c3_isp_update_bits(cap->isp, C3_ISP_WRMIFX3_REG(ISP_WRMIFX3_0_CH0_CTRL0, cap->id),
+ ISP_WRMIFX3_0_CH0_CTRL0_STRIDE_MASK,
+ ISP_WRMIFX3_0_CH0_CTRL0_STRIDE(stride));
+
+ c3_isp_update_bits(cap->isp, C3_ISP_WRMIFX3_REG(ISP_WRMIFX3_0_CH0_CTRL1, cap->id),
+ ISP_WRMIFX3_0_CH0_CTRL1_PIX_BITS_MODE_MASK,
+ ISP_WRMIFX3_0_CH0_CTRL1_PIX_BITS_8BITS);
+}
+
+static void c3_isp_cap_wrmifx3_yuv420(struct c3_isp_capture *cap, bool swap)
+{
+ struct v4l2_pix_format *fmt = &cap->vfmt.fmt.pix;
+ u32 stride;
+ u32 swap_uv;
+
+ c3_isp_update_bits(cap->isp, C3_ISP_WRMIFX3_REG(ISP_WRMIFX3_0_FMT_CTRL, cap->id),
+ ISP_WRMIFX3_0_FMT_CTRL_MTX_IBITS_MASK,
+ ISP_WRMIFX3_0_FMT_CTRL_MTX_IBITS_8BIT);
+
+ swap_uv = swap ? ISP_WRMIFX3_0_FMT_CTRL_MTX_UV_SWAP_UV :
+ ISP_WRMIFX3_0_FMT_CTRL_MTX_UV_SWAP_VU;
+ c3_isp_update_bits(cap->isp, C3_ISP_WRMIFX3_REG(ISP_WRMIFX3_0_FMT_CTRL, cap->id),
+ ISP_WRMIFX3_0_FMT_CTRL_MTX_UV_SWAP_MASK, swap_uv);
+
+ /* NV12 or NV21 has 2 planes*/
+ c3_isp_update_bits(cap->isp, C3_ISP_WRMIFX3_REG(ISP_WRMIFX3_0_FMT_CTRL, cap->id),
+ ISP_WRMIFX3_0_FMT_CTRL_MTX_PLANE_MASK,
+ ISP_WRMIFX3_0_FMT_CTRL_MTX_PLANE_X2);
+
+ /* Set YUV420 as output format */
+ c3_isp_update_bits(cap->isp, C3_ISP_WRMIFX3_REG(ISP_WRMIFX3_0_FMT_CTRL, cap->id),
+ ISP_WRMIFX3_0_FMT_CTRL_MODE_OUT_MASK,
+ ISP_WRMIFX3_0_FMT_CTRL_MODE_OUT_YUV420);
+
+ c3_isp_update_bits(cap->isp, C3_ISP_WRMIFX3_REG(ISP_WRMIFX3_0_WIN_CHROM_H, cap->id),
+ ISP_WRMIFX3_0_WIN_CHROM_H_CHROM_HEND_MASK,
+ ISP_WRMIFX3_0_WIN_CHROM_H_CHROM_HEND(fmt->width >> 1));
+ c3_isp_update_bits(cap->isp, C3_ISP_WRMIFX3_REG(ISP_WRMIFX3_0_WIN_CHROM_V, cap->id),
+ ISP_WRMIFX3_0_WIN_CHROM_V_CHROM_VEND_MASK,
+ ISP_WRMIFX3_0_WIN_CHROM_V_CHROM_VEND(fmt->height >> 1));
+
+ /* The unit of Y and UV strides is 16 bytes */
+ stride = DIV_ROUND_UP(fmt->width * 1, C3_ISP_DMA_SIZE_ALIGN_BYTES);
+ c3_isp_update_bits(cap->isp, C3_ISP_WRMIFX3_REG(ISP_WRMIFX3_0_CH0_CTRL0, cap->id),
+ ISP_WRMIFX3_0_CH0_CTRL0_STRIDE_MASK,
+ ISP_WRMIFX3_0_CH0_CTRL0_STRIDE(stride));
+ c3_isp_update_bits(cap->isp, C3_ISP_WRMIFX3_REG(ISP_WRMIFX3_0_CH1_CTRL0, cap->id),
+ ISP_WRMIFX3_0_CH1_CTRL0_STRIDE_MASK,
+ ISP_WRMIFX3_0_CH1_CTRL0_STRIDE(stride));
+
+ c3_isp_update_bits(cap->isp, C3_ISP_WRMIFX3_REG(ISP_WRMIFX3_0_CH0_CTRL1, cap->id),
+ ISP_WRMIFX3_0_CH0_CTRL1_PIX_BITS_MODE_MASK,
+ ISP_WRMIFX3_0_CH0_CTRL1_PIX_BITS_8BITS);
+ c3_isp_update_bits(cap->isp, C3_ISP_WRMIFX3_REG(ISP_WRMIFX3_0_CH1_CTRL1, cap->id),
+ ISP_WRMIFX3_0_CH1_CTRL1_PIX_BITS_MODE_MASK,
+ ISP_WRMIFX3_0_CH1_CTRL1_PIX_BITS_16BITS);
+}
+
+static void c3_isp_cap_wrmifx3_yuv422(struct c3_isp_capture *cap, bool swap)
+{
+ struct v4l2_pix_format *fmt = &cap->vfmt.fmt.pix;
+ u32 stride;
+ u32 swap_uv;
+
+ c3_isp_update_bits(cap->isp, C3_ISP_WRMIFX3_REG(ISP_WRMIFX3_0_FMT_CTRL, cap->id),
+ ISP_WRMIFX3_0_FMT_CTRL_MTX_IBITS_MASK,
+ ISP_WRMIFX3_0_FMT_CTRL_MTX_IBITS_16BIT);
+
+ swap_uv = swap ? ISP_WRMIFX3_0_FMT_CTRL_MTX_UV_SWAP_UV :
+ ISP_WRMIFX3_0_FMT_CTRL_MTX_UV_SWAP_VU;
+ c3_isp_update_bits(cap->isp, C3_ISP_WRMIFX3_REG(ISP_WRMIFX3_0_FMT_CTRL, cap->id),
+ ISP_WRMIFX3_0_FMT_CTRL_MTX_UV_SWAP_MASK, swap_uv);
+
+ /* NV16 or NV61 has 2 planes*/
+ c3_isp_update_bits(cap->isp, C3_ISP_WRMIFX3_REG(ISP_WRMIFX3_0_FMT_CTRL, cap->id),
+ ISP_WRMIFX3_0_FMT_CTRL_MTX_PLANE_MASK,
+ ISP_WRMIFX3_0_FMT_CTRL_MTX_PLANE_X2);
+
+ /* Set YUV422 as output format */
+ c3_isp_update_bits(cap->isp, C3_ISP_WRMIFX3_REG(ISP_WRMIFX3_0_FMT_CTRL, cap->id),
+ ISP_WRMIFX3_0_FMT_CTRL_MODE_OUT_MASK,
+ ISP_WRMIFX3_0_FMT_CTRL_MODE_OUT_YUV422);
+
+ c3_isp_update_bits(cap->isp, C3_ISP_WRMIFX3_REG(ISP_WRMIFX3_0_WIN_CHROM_H, cap->id),
+ ISP_WRMIFX3_0_WIN_CHROM_H_CHROM_HEND_MASK,
+ ISP_WRMIFX3_0_WIN_CHROM_H_CHROM_HEND(fmt->width));
+ c3_isp_update_bits(cap->isp, C3_ISP_WRMIFX3_REG(ISP_WRMIFX3_0_WIN_CHROM_V, cap->id),
+ ISP_WRMIFX3_0_WIN_CHROM_V_CHROM_VEND_MASK,
+ ISP_WRMIFX3_0_WIN_CHROM_V_CHROM_VEND(fmt->height >> 1));
+
+ /* The unit of Y stride is 16 bytes */
+ stride = DIV_ROUND_UP(fmt->width * 1, C3_ISP_DMA_SIZE_ALIGN_BYTES);
+ c3_isp_update_bits(cap->isp, C3_ISP_WRMIFX3_REG(ISP_WRMIFX3_0_CH0_CTRL0, cap->id),
+ ISP_WRMIFX3_0_CH0_CTRL0_STRIDE_MASK,
+ ISP_WRMIFX3_0_CH0_CTRL0_STRIDE(stride));
+
+ /* The unit of UV stride is 16 bytes */
+ stride = DIV_ROUND_UP(fmt->width * 2, C3_ISP_DMA_SIZE_ALIGN_BYTES);
+ c3_isp_update_bits(cap->isp, C3_ISP_WRMIFX3_REG(ISP_WRMIFX3_0_CH1_CTRL0, cap->id),
+ ISP_WRMIFX3_0_CH1_CTRL0_STRIDE_MASK,
+ ISP_WRMIFX3_0_CH1_CTRL0_STRIDE(stride));
+
+ c3_isp_update_bits(cap->isp, C3_ISP_WRMIFX3_REG(ISP_WRMIFX3_0_CH0_CTRL1, cap->id),
+ ISP_WRMIFX3_0_CH0_CTRL1_PIX_BITS_MODE_MASK,
+ ISP_WRMIFX3_0_CH0_CTRL1_PIX_BITS_8BITS);
+ c3_isp_update_bits(cap->isp, C3_ISP_WRMIFX3_REG(ISP_WRMIFX3_0_CH1_CTRL1, cap->id),
+ ISP_WRMIFX3_0_CH1_CTRL1_PIX_BITS_MODE_MASK,
+ ISP_WRMIFX3_0_CH1_CTRL1_PIX_BITS_16BITS);
+}
+
+static void c3_isp_cap_wrmifx3_size(struct c3_isp_capture *cap)
+{
+ struct v4l2_pix_format *fmt = &cap->vfmt.fmt.pix;
+
+ if (fmt->pixelformat == V4L2_PIX_FMT_GREY)
+ c3_isp_cap_wrmifx3_grey(cap);
+ else if (fmt->pixelformat == V4L2_PIX_FMT_NV12)
+ c3_isp_cap_wrmifx3_yuv420(cap, true);
+ else if (fmt->pixelformat == V4L2_PIX_FMT_NV21)
+ c3_isp_cap_wrmifx3_yuv420(cap, false);
+ else if (fmt->pixelformat == V4L2_PIX_FMT_NV16)
+ c3_isp_cap_wrmifx3_yuv422(cap, true);
+ else if (fmt->pixelformat == V4L2_PIX_FMT_NV61)
+ c3_isp_cap_wrmifx3_yuv422(cap, false);
+
+ c3_isp_write(cap->isp, C3_ISP_WRMIFX3_REG(ISP_WRMIFX3_0_FMT_SIZE, cap->id),
+ ISP_WRMIFX3_0_FMT_SIZE_HSIZE(fmt->width) |
+ ISP_WRMIFX3_0_FMT_SIZE_VSIZE(fmt->height));
+
+ c3_isp_update_bits(cap->isp, C3_ISP_WRMIFX3_REG(ISP_WRMIFX3_0_WIN_LUMA_H, cap->id),
+ ISP_WRMIFX3_0_WIN_LUMA_H_LUMA_HEND_MASK,
+ ISP_WRMIFX3_0_WIN_LUMA_H_LUMA_HEND(fmt->width));
+ c3_isp_update_bits(cap->isp, C3_ISP_WRMIFX3_REG(ISP_WRMIFX3_0_WIN_LUMA_V, cap->id),
+ ISP_WRMIFX3_0_WIN_LUMA_V_LUMA_VEND_MASK,
+ ISP_WRMIFX3_0_WIN_LUMA_V_LUMA_VEND(fmt->height));
+}
+
+static int c3_isp_cap_dummy_buff_create(struct c3_isp_capture *cap)
+{
+ struct c3_isp_dummy_buffer *dummy_buff = &cap->dummy_buff;
+
+ dummy_buff->size = cap->vfmt.fmt.pix.sizeimage;
+
+ /* The driver never access vaddr, no mapping is required */
+ dummy_buff->vaddr = dma_alloc_attrs(cap->isp->dev,
+ dummy_buff->size,
+ &dummy_buff->dma_addr,
+ GFP_KERNEL,
+ DMA_ATTR_NO_KERNEL_MAPPING);
+ if (!dummy_buff->vaddr)
+ return -ENOMEM;
+
+ return 0;
+}
+
+static void c3_isp_cap_dummy_buff_destroy(struct c3_isp_capture *cap)
+{
+ dma_free_attrs(cap->isp->dev,
+ cap->dummy_buff.size, cap->dummy_buff.vaddr,
+ cap->dummy_buff.dma_addr, DMA_ATTR_NO_KERNEL_MAPPING);
+}
+
+static void c3_isp_cap_cfg_buff(struct c3_isp_capture *cap)
+{
+ cap->buff = list_first_entry_or_null(&cap->pending,
+ struct c3_isp_buffer, list);
+
+ c3_isp_cap_wrmifx3_buff(cap);
+
+ if (cap->buff)
+ list_del(&cap->buff->list);
+}
+
+static void c3_isp_cap_start(struct c3_isp_capture *cap)
+{
+ scoped_guard(spinlock_irqsave, &cap->buff_lock)
+ c3_isp_cap_cfg_buff(cap);
+
+ c3_isp_cap_wrmifx3_size(cap);
+
+ if (cap->id == C3_ISP_CAP_DEV_0) {
+ c3_isp_update_bits(cap->isp, ISP_TOP_PATH_EN, ISP_TOP_PATH_EN_WRMIF0_EN_MASK,
+ ISP_TOP_PATH_EN_WRMIF0_EN);
+ } else if (cap->id == C3_ISP_CAP_DEV_1) {
+ c3_isp_update_bits(cap->isp, ISP_TOP_PATH_EN, ISP_TOP_PATH_EN_WRMIF1_EN_MASK,
+ ISP_TOP_PATH_EN_WRMIF1_EN);
+ } else if (cap->id == C3_ISP_CAP_DEV_2) {
+ c3_isp_update_bits(cap->isp, ISP_TOP_PATH_EN, ISP_TOP_PATH_EN_WRMIF2_EN_MASK,
+ ISP_TOP_PATH_EN_WRMIF2_EN);
+ }
+}
+
+static void c3_isp_cap_stop(struct c3_isp_capture *cap)
+{
+ if (cap->id == C3_ISP_CAP_DEV_0) {
+ c3_isp_update_bits(cap->isp, ISP_TOP_PATH_EN, ISP_TOP_PATH_EN_WRMIF0_EN_MASK,
+ ISP_TOP_PATH_EN_WRMIF0_DIS);
+ } else if (cap->id == C3_ISP_CAP_DEV_1) {
+ c3_isp_update_bits(cap->isp, ISP_TOP_PATH_EN, ISP_TOP_PATH_EN_WRMIF1_EN_MASK,
+ ISP_TOP_PATH_EN_WRMIF1_DIS);
+ } else if (cap->id == C3_ISP_CAP_DEV_2) {
+ c3_isp_update_bits(cap->isp, ISP_TOP_PATH_EN, ISP_TOP_PATH_EN_WRMIF2_EN_MASK,
+ ISP_TOP_PATH_EN_WRMIF2_DIS);
+ }
+}
+
+static void c3_isp_cap_done(struct c3_isp_capture *cap)
+{
+ struct c3_isp_buffer *buff = cap->buff;
+
+ guard(spinlock_irqsave)(&cap->buff_lock);
+
+ if (buff) {
+ buff->vb.sequence = cap->isp->frm_sequence;
+ buff->vb.vb2_buf.timestamp = ktime_get();
+ buff->vb.field = V4L2_FIELD_NONE;
+ vb2_buffer_done(&buff->vb.vb2_buf, VB2_BUF_STATE_DONE);
+ }
+
+ c3_isp_cap_cfg_buff(cap);
+}
+
+/* V4L2 video operations */
+
+static const struct c3_isp_capture_format
+*c3_cap_find_fmt(u32 fourcc)
+{
+ unsigned int i;
+
+ for (i = 0; i < ARRAY_SIZE(cap_formats); i++) {
+ if (cap_formats[i].fourcc == fourcc)
+ return &cap_formats[i];
+ }
+
+ return NULL;
+}
+
+static void c3_cap_try_fmt(struct c3_isp_capture *cap,
+ struct v4l2_pix_format *pix)
+{
+ const struct c3_isp_capture_format *fmt;
+ const struct v4l2_format_info *info;
+
+ fmt = c3_cap_find_fmt(pix->pixelformat);
+ if (!fmt)
+ fmt = &cap_formats[0];
+
+ pix->width = clamp(pix->width, C3_ISP_MIN_WIDTH, C3_ISP_MAX_WIDTH);
+ pix->height = clamp(pix->height, C3_ISP_MIN_HEIGHT, C3_ISP_MAX_HEIGHT);
+ pix->pixelformat = fmt->fourcc;
+ pix->field = V4L2_FIELD_NONE;
+ pix->colorspace = V4L2_COLORSPACE_SRGB;
+ pix->ycbcr_enc = V4L2_YCBCR_ENC_601;
+ pix->quantization = V4L2_QUANTIZATION_LIM_RANGE;
+
+ info = v4l2_format_info(fmt->fourcc);
+ pix->bytesperline = pix->width * info->bpp[0] / info->bpp_div[0];
+
+ /* ISP hardware requires 16 bytes alignment */
+ pix->bytesperline = ALIGN(pix->bytesperline, C3_ISP_DMA_SIZE_ALIGN_BYTES);
+
+ pix->sizeimage = 0;
+ for (unsigned int i = 0; i < info->comp_planes; i++) {
+ unsigned int hdiv = (i == 0) ? 1 : info->hdiv;
+ unsigned int vdiv = (i == 0) ? 1 : info->vdiv;
+ unsigned int bytesperline;
+
+ bytesperline = info->bpp[i] * DIV_ROUND_UP(pix->width, hdiv) / info->bpp_div[i];
+
+ /* ISP hardware requires 16 bytes alignment */
+ bytesperline = ALIGN(bytesperline, C3_ISP_DMA_SIZE_ALIGN_BYTES);
+ pix->sizeimage += bytesperline * DIV_ROUND_UP(pix->height, vdiv);
+ }
+}
+
+static void c3_isp_cap_return_buffers(struct c3_isp_capture *cap,
+ enum vb2_buffer_state state)
+{
+ struct c3_isp_buffer *buff;
+
+ guard(spinlock_irqsave)(&cap->buff_lock);
+
+ if (cap->buff) {
+ vb2_buffer_done(&cap->buff->vb.vb2_buf, state);
+ cap->buff = NULL;
+ }
+
+ while (!list_empty(&cap->pending)) {
+ buff = list_first_entry(&cap->pending,
+ struct c3_isp_buffer, list);
+ list_del(&buff->list);
+ vb2_buffer_done(&buff->vb.vb2_buf, state);
+ }
+}
+
+static int c3_isp_cap_querycap(struct file *file, void *fh,
+ struct v4l2_capability *cap)
+{
+ strscpy(cap->driver, C3_ISP_DRIVER_NAME, sizeof(cap->driver));
+ strscpy(cap->card, "AML C3 ISP", sizeof(cap->card));
+
+ return 0;
+}
+
+static int c3_isp_cap_enum_fmt(struct file *file, void *fh,
+ struct v4l2_fmtdesc *f)
+{
+ const struct c3_isp_capture_format *fmt;
+ unsigned int index = 0;
+ unsigned int i;
+
+ if (!f->mbus_code) {
+ if (f->index >= ARRAY_SIZE(cap_formats))
+ return -EINVAL;
+
+ fmt = &cap_formats[f->index];
+ f->pixelformat = fmt->fourcc;
+ return 0;
+ }
+
+ for (i = 0; i < ARRAY_SIZE(cap_formats); i++) {
+ fmt = &cap_formats[i];
+ if (f->mbus_code != fmt->mbus_code)
+ continue;
+
+ if (index++ == f->index) {
+ f->pixelformat = cap_formats[i].fourcc;
+ return 0;
+ }
+ }
+
+ return -EINVAL;
+}
+
+static int c3_isp_cap_g_fmt(struct file *file, void *fh,
+ struct v4l2_format *f)
+{
+ struct c3_isp_capture *cap = video_drvdata(file);
+
+ f->fmt.pix = cap->vfmt.fmt.pix;
+
+ return 0;
+}
+
+static int c3_isp_cap_s_fmt(struct file *file, void *fh,
+ struct v4l2_format *f)
+{
+ struct c3_isp_capture *cap = video_drvdata(file);
+
+ c3_cap_try_fmt(cap, &f->fmt.pix);
+ cap->vfmt = *f;
+
+ return 0;
+}
+
+static int c3_isp_cap_try_fmt(struct file *file, void *fh,
+ struct v4l2_format *f)
+{
+ struct c3_isp_capture *cap = video_drvdata(file);
+
+ c3_cap_try_fmt(cap, &f->fmt.pix);
+
+ return 0;
+}
+
+static int c3_isp_cap_enum_frmsize(struct file *file, void *fh,
+ struct v4l2_frmsizeenum *fsize)
+{
+ const struct c3_isp_capture_format *fmt;
+
+ if (fsize->index)
+ return -EINVAL;
+
+ fmt = c3_cap_find_fmt(fsize->pixel_format);
+ if (!fmt)
+ return -EINVAL;
+
+ fsize->type = V4L2_FRMSIZE_TYPE_STEPWISE;
+ fsize->stepwise.min_width = C3_ISP_MIN_WIDTH;
+ fsize->stepwise.min_height = C3_ISP_MIN_HEIGHT;
+ fsize->stepwise.max_width = C3_ISP_MAX_WIDTH;
+ fsize->stepwise.max_height = C3_ISP_MAX_HEIGHT;
+ fsize->stepwise.step_width = 2;
+ fsize->stepwise.step_height = 2;
+
+ return 0;
+}
+
+static const struct v4l2_ioctl_ops isp_cap_v4l2_ioctl_ops = {
+ .vidioc_querycap = c3_isp_cap_querycap,
+ .vidioc_enum_fmt_vid_cap = c3_isp_cap_enum_fmt,
+ .vidioc_g_fmt_vid_cap = c3_isp_cap_g_fmt,
+ .vidioc_s_fmt_vid_cap = c3_isp_cap_s_fmt,
+ .vidioc_try_fmt_vid_cap = c3_isp_cap_try_fmt,
+ .vidioc_reqbufs = vb2_ioctl_reqbufs,
+ .vidioc_querybuf = vb2_ioctl_querybuf,
+ .vidioc_qbuf = vb2_ioctl_qbuf,
+ .vidioc_expbuf = vb2_ioctl_expbuf,
+ .vidioc_dqbuf = vb2_ioctl_dqbuf,
+ .vidioc_prepare_buf = vb2_ioctl_prepare_buf,
+ .vidioc_create_bufs = vb2_ioctl_create_bufs,
+ .vidioc_streamon = vb2_ioctl_streamon,
+ .vidioc_streamoff = vb2_ioctl_streamoff,
+ .vidioc_enum_framesizes = c3_isp_cap_enum_frmsize,
+ .vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
+ .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
+};
+
+static const struct v4l2_file_operations isp_cap_v4l2_fops = {
+ .open = v4l2_fh_open,
+ .release = vb2_fop_release,
+ .poll = vb2_fop_poll,
+ .unlocked_ioctl = video_ioctl2,
+ .mmap = vb2_fop_mmap,
+};
+
+static int c3_isp_cap_link_validate(struct media_link *link)
+{
+ struct video_device *vdev =
+ media_entity_to_video_device(link->sink->entity);
+ struct v4l2_subdev *sd =
+ media_entity_to_v4l2_subdev(link->source->entity);
+ struct c3_isp_capture *cap = video_get_drvdata(vdev);
+ struct v4l2_pix_format *pix_fmt = &cap->vfmt.fmt.pix;
+ struct v4l2_subdev_format src_fmt = {
+ .which = V4L2_SUBDEV_FORMAT_ACTIVE,
+ .pad = link->source->index,
+ };
+ const struct c3_isp_capture_format *cap_fmt =
+ c3_cap_find_fmt(pix_fmt->pixelformat);
+ int ret;
+
+ ret = v4l2_subdev_call_state_active(sd, pad, get_fmt, &src_fmt);
+ if (ret)
+ return ret;
+
+ if (src_fmt.format.width != pix_fmt->width ||
+ src_fmt.format.height != pix_fmt->height ||
+ src_fmt.format.code != cap_fmt->mbus_code) {
+ dev_err(cap->isp->dev,
+ "link %s: %u -> %s: %u not valid: 0x%04x/%ux%u not match 0x%04x/%ux%u\n",
+ link->source->entity->name, link->source->index,
+ link->sink->entity->name, link->sink->index,
+ src_fmt.format.code, src_fmt.format.width,
+ src_fmt.format.height, cap_fmt->mbus_code,
+ pix_fmt->width, pix_fmt->height);
+
+ return -EPIPE;
+ };
+
+ return 0;
+}
+
+static const struct media_entity_operations isp_cap_entity_ops = {
+ .link_validate = c3_isp_cap_link_validate,
+};
+
+static int c3_isp_vb2_queue_setup(struct vb2_queue *q,
+ unsigned int *num_buffers,
+ unsigned int *num_planes,
+ unsigned int sizes[],
+ struct device *alloc_devs[])
+{
+ struct c3_isp_capture *cap = vb2_get_drv_priv(q);
+ struct v4l2_pix_format *pix = &cap->vfmt.fmt.pix;
+
+ if (*num_planes) {
+ if (*num_planes != 1)
+ return -EINVAL;
+
+ if (sizes[0] < pix->sizeimage)
+ return -EINVAL;
+ } else {
+ *num_planes = 1;
+ sizes[0] = pix->sizeimage;
+ }
+
+ return 0;
+}
+
+static void c3_isp_vb2_buf_queue(struct vb2_buffer *vb)
+{
+ struct vb2_v4l2_buffer *v4l2_buf = to_vb2_v4l2_buffer(vb);
+ struct c3_isp_buffer *buf =
+ container_of(v4l2_buf, struct c3_isp_buffer, vb);
+ struct c3_isp_capture *cap = vb2_get_drv_priv(vb->vb2_queue);
+
+ guard(spinlock_irqsave)(&cap->buff_lock);
+
+ list_add_tail(&buf->list, &cap->pending);
+}
+
+static int c3_isp_vb2_buf_prepare(struct vb2_buffer *vb)
+{
+ struct c3_isp_capture *cap = vb2_get_drv_priv(vb->vb2_queue);
+ unsigned int size = cap->vfmt.fmt.pix.sizeimage;
+
+ if (vb2_plane_size(vb, 0) < size) {
+ dev_err(cap->isp->dev,
+ "User buffer too small (%ld < %u)\n",
+ vb2_plane_size(vb, 0), size);
+ return -EINVAL;
+ }
+
+ vb2_set_plane_payload(vb, 0, size);
+
+ return 0;
+}
+
+static int c3_isp_vb2_buf_init(struct vb2_buffer *vb)
+{
+ struct vb2_v4l2_buffer *v4l2_buf = to_vb2_v4l2_buffer(vb);
+ struct c3_isp_buffer *buf =
+ container_of(v4l2_buf, struct c3_isp_buffer, vb);
+
+ buf->dma_addr = vb2_dma_contig_plane_dma_addr(vb, 0);
+
+ return 0;
+}
+
+static int c3_isp_vb2_start_streaming(struct vb2_queue *q,
+ unsigned int count)
+{
+ struct c3_isp_capture *cap = vb2_get_drv_priv(q);
+ int ret;
+
+ ret = pm_runtime_resume_and_get(cap->isp->dev);
+ if (ret)
+ return ret;
+
+ ret = video_device_pipeline_start(&cap->vdev, &cap->isp->pipe);
+ if (ret) {
+ dev_err(cap->isp->dev,
+ "Failed to start cap%u pipeline: %d\n", cap->id, ret);
+ goto err_pm_put;
+ }
+
+ ret = c3_isp_cap_dummy_buff_create(cap);
+ if (ret)
+ goto err_pipeline_stop;
+
+ c3_isp_cap_start(cap);
+
+ ret = v4l2_subdev_enable_streams(&cap->rsz->sd,
+ C3_ISP_RESIZER_PAD_SOURCE, BIT(0));
+ if (ret)
+ goto err_dummy_destroy;
+
+ return 0;
+
+err_dummy_destroy:
+ c3_isp_cap_dummy_buff_destroy(cap);
+err_pipeline_stop:
+ video_device_pipeline_stop(&cap->vdev);
+err_pm_put:
+ pm_runtime_put(cap->isp->dev);
+ c3_isp_cap_return_buffers(cap, VB2_BUF_STATE_QUEUED);
+ return ret;
+}
+
+static void c3_isp_vb2_stop_streaming(struct vb2_queue *q)
+{
+ struct c3_isp_capture *cap = vb2_get_drv_priv(q);
+
+ c3_isp_cap_stop(cap);
+ c3_isp_cap_return_buffers(cap, VB2_BUF_STATE_ERROR);
+
+ v4l2_subdev_disable_streams(&cap->rsz->sd,
+ C3_ISP_RESIZER_PAD_SOURCE, BIT(0));
+
+ c3_isp_cap_dummy_buff_destroy(cap);
+
+ video_device_pipeline_stop(&cap->vdev);
+ pm_runtime_put(cap->isp->dev);
+}
+
+static const struct vb2_ops isp_video_vb2_ops = {
+ .queue_setup = c3_isp_vb2_queue_setup,
+ .buf_queue = c3_isp_vb2_buf_queue,
+ .buf_prepare = c3_isp_vb2_buf_prepare,
+ .buf_init = c3_isp_vb2_buf_init,
+ .wait_prepare = vb2_ops_wait_prepare,
+ .wait_finish = vb2_ops_wait_finish,
+ .start_streaming = c3_isp_vb2_start_streaming,
+ .stop_streaming = c3_isp_vb2_stop_streaming,
+};
+
+static int c3_isp_register_capture(struct c3_isp_capture *cap)
+{
+ struct video_device *vdev = &cap->vdev;
+ struct vb2_queue *vb2_q = &cap->vb2_q;
+ int ret;
+
+ snprintf(vdev->name, sizeof(vdev->name), "c3-isp-cap%u", cap->id);
+ vdev->fops = &isp_cap_v4l2_fops;
+ vdev->ioctl_ops = &isp_cap_v4l2_ioctl_ops;
+ vdev->v4l2_dev = &cap->isp->v4l2_dev;
+ vdev->entity.ops = &isp_cap_entity_ops;
+ vdev->lock = &cap->lock;
+ vdev->minor = -1;
+ vdev->queue = vb2_q;
+ vdev->release = video_device_release_empty;
+ vdev->device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING;
+ vdev->vfl_dir = VFL_DIR_RX;
+ video_set_drvdata(vdev, cap);
+
+ vb2_q->drv_priv = cap;
+ vb2_q->mem_ops = &vb2_dma_contig_memops;
+ vb2_q->ops = &isp_video_vb2_ops;
+ vb2_q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+ vb2_q->io_modes = VB2_DMABUF | VB2_MMAP;
+ vb2_q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
+ vb2_q->buf_struct_size = sizeof(struct c3_isp_buffer);
+ vb2_q->dev = cap->isp->dev;
+ vb2_q->lock = &cap->lock;
+ vb2_q->min_queued_buffers = 2;
+
+ ret = vb2_queue_init(vb2_q);
+ if (ret < 0)
+ goto err_destroy;
+
+ cap->pad.flags = MEDIA_PAD_FL_SINK;
+ ret = media_entity_pads_init(&vdev->entity, 1, &cap->pad);
+ if (ret < 0)
+ goto err_queue_release;
+
+ ret = video_register_device(vdev, VFL_TYPE_VIDEO, -1);
+ if (ret < 0) {
+ dev_err(cap->isp->dev,
+ "Failed to register %s: %d\n", vdev->name, ret);
+ goto err_entity_cleanup;
+ }
+
+ return 0;
+
+err_entity_cleanup:
+ media_entity_cleanup(&vdev->entity);
+err_queue_release:
+ vb2_queue_release(vb2_q);
+err_destroy:
+ mutex_destroy(&cap->lock);
+ return ret;
+}
+
+int c3_isp_captures_register(struct c3_isp_device *isp)
+{
+ int ret;
+ unsigned int i;
+ struct c3_isp_capture *cap;
+
+ for (i = C3_ISP_CAP_DEV_0; i < C3_ISP_NUM_CAP_DEVS; i++) {
+ cap = &isp->caps[i];
+ memset(cap, 0, sizeof(*cap));
+
+ cap->vfmt.fmt.pix.width = C3_ISP_DEFAULT_WIDTH;
+ cap->vfmt.fmt.pix.height = C3_ISP_DEFAULT_HEIGHT;
+ cap->vfmt.fmt.pix.field = V4L2_FIELD_NONE;
+ cap->vfmt.fmt.pix.pixelformat = V4L2_PIX_FMT_NV21;
+ cap->vfmt.fmt.pix.colorspace = V4L2_COLORSPACE_SRGB;
+
+ c3_cap_try_fmt(cap, &cap->vfmt.fmt.pix);
+
+ cap->id = i;
+ cap->rsz = &isp->resizers[i];
+ cap->isp = isp;
+ INIT_LIST_HEAD(&cap->pending);
+ spin_lock_init(&cap->buff_lock);
+ mutex_init(&cap->lock);
+
+ ret = c3_isp_register_capture(cap);
+ if (ret) {
+ cap->isp = NULL;
+ mutex_destroy(&cap->lock);
+ c3_isp_captures_unregister(isp);
+ return ret;
+ }
+ }
+
+ return 0;
+}
+
+void c3_isp_captures_unregister(struct c3_isp_device *isp)
+{
+ unsigned int i;
+ struct c3_isp_capture *cap;
+
+ for (i = C3_ISP_CAP_DEV_0; i < C3_ISP_NUM_CAP_DEVS; i++) {
+ cap = &isp->caps[i];
+
+ if (!cap->isp)
+ continue;
+ vb2_queue_release(&cap->vb2_q);
+ media_entity_cleanup(&cap->vdev.entity);
+ video_unregister_device(&cap->vdev);
+ mutex_destroy(&cap->lock);
+ }
+}
+
+void c3_isp_captures_isr(struct c3_isp_device *isp)
+{
+ c3_isp_cap_done(&isp->caps[C3_ISP_CAP_DEV_0]);
+ c3_isp_cap_done(&isp->caps[C3_ISP_CAP_DEV_1]);
+ c3_isp_cap_done(&isp->caps[C3_ISP_CAP_DEV_2]);
+}
diff --git a/drivers/media/platform/amlogic/c3/isp/c3-isp-common.h b/drivers/media/platform/amlogic/c3/isp/c3-isp-common.h
new file mode 100644
index 000000000000..d2c0b9aacf36
--- /dev/null
+++ b/drivers/media/platform/amlogic/c3/isp/c3-isp-common.h
@@ -0,0 +1,352 @@
+/* SPDX-License-Identifier: (GPL-2.0-only OR MIT) */
+/*
+ * Copyright (C) 2024 Amlogic, Inc. All rights reserved
+ */
+
+#ifndef __C3_ISP_COMMON_H__
+#define __C3_ISP_COMMON_H__
+
+#include <linux/clk.h>
+
+#include <media/media-device.h>
+#include <media/videobuf2-core.h>
+#include <media/v4l2-device.h>
+#include <media/v4l2-subdev.h>
+#include <media/videobuf2-v4l2.h>
+
+#define C3_ISP_DRIVER_NAME "c3-isp"
+#define C3_ISP_CLOCK_NUM_MAX 3
+
+#define C3_ISP_CORE_DEF_SINK_PAD_FMT MEDIA_BUS_FMT_SRGGB10_1X10
+#define C3_ISP_CORE_DEF_SRC_PAD_FMT MEDIA_BUS_FMT_YUV8_1X24
+#define C3_ISP_RSZ_DEF_PAD_FMT MEDIA_BUS_FMT_YUV8_1X24
+#define C3_ISP_DEFAULT_WIDTH 1920
+#define C3_ISP_DEFAULT_HEIGHT 1080
+#define C3_ISP_MAX_WIDTH 2888
+#define C3_ISP_MAX_HEIGHT 2240
+#define C3_ISP_MIN_WIDTH 160
+#define C3_ISP_MIN_HEIGHT 120
+
+#define C3_ISP_DMA_SIZE_ALIGN_BYTES 16
+#define C3_ISP_DISP_REG(base, id) ((base) + (id) * 0x400)
+#define C3_ISP_WRMIFX3_REG(base, id) ((base) + (id) * 0x100)
+#define C3_ISP_PPS_TAP4_S11_H_NUM 33
+#define C3_ISP_PPS_LUT_CTYPE_0 0
+#define C3_ISP_PPS_LUT_CTYPE_2 2
+#define C3_ISP_SCALE_EN 1
+#define C3_ISP_SCALE_DIS 0
+
+#define C3_ISP_PHASE_OFFSET_0 0
+#define C3_ISP_PHASE_OFFSET_1 1
+#define C3_ISP_PHASE_OFFSET_NONE 0xff
+
+enum c3_isp_core_pads {
+ C3_ISP_CORE_PAD_SINK_VIDEO,
+ C3_ISP_CORE_PAD_SINK_PARAMS,
+ C3_ISP_CORE_PAD_SOURCE_STATS,
+ C3_ISP_CORE_PAD_SOURCE_VIDEO,
+ C3_ISP_CORE_PAD_MAX
+};
+
+enum c3_isp_resizer_ids {
+ C3_ISP_RSZ_0,
+ C3_ISP_RSZ_1,
+ C3_ISP_RSZ_2,
+ C3_ISP_NUM_RSZ
+};
+
+enum c3_isp_resizer_pads {
+ C3_ISP_RESIZER_PAD_SINK,
+ C3_ISP_RESIZER_PAD_SOURCE,
+ C3_ISP_RESIZER_PAD_MAX
+};
+
+enum c3_isp_cap_devs {
+ C3_ISP_CAP_DEV_0,
+ C3_ISP_CAP_DEV_1,
+ C3_ISP_CAP_DEV_2,
+ C3_ISP_NUM_CAP_DEVS
+};
+
+/*
+ * struct c3_isp_pps_io_size - ISP scaler input and output size
+ *
+ * @thsize: input horizontal size of after preprocessing
+ * @tvsize: input vertical size of after preprocessing
+ * @ohsize: output horizontal size
+ * @ovsize: output vertical size
+ * @ihsize: input horizontal size
+ * @max_hsize: maximum horizontal size
+ */
+struct c3_isp_pps_io_size {
+ u32 thsize;
+ u32 tvsize;
+ u32 ohsize;
+ u32 ovsize;
+ u32 ihsize;
+ u32 max_hsize;
+};
+
+/*
+ * struct c3_isp_mbus_format_info - MBUS format information
+ *
+ * @mbus_code: the mbus code
+ * @pads: bitmask detailing valid pads for this mbus_code
+ * @xofst: horizontal phase offset of hardware
+ * @yofst: vertical phase offset of hardware
+ */
+struct c3_isp_mbus_format_info {
+ u32 mbus_code;
+ u32 pads;
+ u8 xofst;
+ u8 yofst;
+};
+
+/*
+ * struct c3_isp_capture_format - The image format of capture device
+ *
+ * @mbus_code: the mbus code
+ * @fourcc: pixel format
+ */
+struct c3_isp_capture_format {
+ u32 mbus_code;
+ u32 fourcc;
+};
+
+/*
+ * struct c3_isp_buffer - A container of vb2 buffer used by the video devices:
+ * capture and stats video devices
+ *
+ * @vb: vb2 buffer
+ * @dma_addr: buffer physical address
+ * @list: entry of the buffer in the queue
+ */
+struct c3_isp_buffer {
+ struct vb2_v4l2_buffer vb;
+ dma_addr_t dma_addr;
+ struct list_head list;
+};
+
+/*
+ * struct c3_isp_params_buffer - A container of vb2 buffer used by the
+ * params video device
+ *
+ * @vb: vb2 buffer
+ * @cfg: scratch buffer used for caching the ISP configuration parameters
+ * @list: entry of the buffer in the queue
+ */
+struct c3_isp_params_buffer {
+ struct vb2_v4l2_buffer vb;
+ void *cfg;
+ struct list_head list;
+};
+
+/*
+ * struct c3_isp_dummy_buffer - A buffer to write the next frame to in case
+ * there are no vb2 buffers available.
+ *
+ * @vaddr: return value of call to dma_alloc_attrs
+ * @dma_addr: dma address of the buffer
+ * @size: size of the buffer
+ */
+struct c3_isp_dummy_buffer {
+ void *vaddr;
+ dma_addr_t dma_addr;
+ u32 size;
+};
+
+/*
+ * struct c3_isp_core - ISP core subdev
+ *
+ * @sd: ISP sub-device
+ * @pads: ISP sub-device pads
+ * @src_sd: source sub-device
+ * @src_sd_pad: source sub-device pad
+ * @isp: pointer to c3_isp_device
+ */
+struct c3_isp_core {
+ struct v4l2_subdev sd;
+ struct media_pad pads[C3_ISP_CORE_PAD_MAX];
+ struct v4l2_subdev *src_sd;
+ u16 src_sd_pad;
+ struct c3_isp_device *isp;
+};
+
+/*
+ * struct c3_isp_resizer - ISP resizer subdev
+ *
+ * @id: resizer id
+ * @sd: resizer sub-device
+ * @pads: resizer sub-device pads
+ * @src_sd: source sub-device
+ * @src_sd_pad: source sub-device pad
+ * @isp: pointer to c3_isp_device
+ */
+struct c3_isp_resizer {
+ enum c3_isp_resizer_ids id;
+ struct v4l2_subdev sd;
+ struct media_pad pads[C3_ISP_RESIZER_PAD_MAX];
+ struct v4l2_subdev *src_sd;
+ u32 src_sd_pad;
+ struct c3_isp_device *isp;
+};
+
+/*
+ * struct c3_isp_stats - ISP statistics device
+ *
+ * @vb2_q: vb2 buffer queue
+ * @vdev: video node
+ * @vfmt: v4l2_format of the metadata format
+ * @pad: media pad
+ * @lock: protects vb2_q, vdev
+ * @isp: pointer to c3_isp_device
+ * @buff: in use buffer
+ * @buff_lock: protects stats buffer
+ * @pending: stats buffer list head
+ */
+struct c3_isp_stats {
+ struct vb2_queue vb2_q;
+ struct video_device vdev;
+ struct v4l2_format vfmt;
+ struct media_pad pad;
+
+ struct mutex lock; /* Protects vb2_q, vdev */
+ struct c3_isp_device *isp;
+
+ struct c3_isp_buffer *buff;
+ spinlock_t buff_lock; /* Protects stats buffer */
+ struct list_head pending;
+};
+
+/*
+ * struct c3_isp_params - ISP parameters device
+ *
+ * @vb2_q: vb2 buffer queue
+ * @vdev: video node
+ * @vfmt: v4l2_format of the metadata format
+ * @pad: media pad
+ * @lock: protects vb2_q, vdev
+ * @isp: pointer to c3_isp_device
+ * @buff: in use buffer
+ * @buff_lock: protects stats buffer
+ * @pending: stats buffer list head
+ */
+struct c3_isp_params {
+ struct vb2_queue vb2_q;
+ struct video_device vdev;
+ struct v4l2_format vfmt;
+ struct media_pad pad;
+
+ struct mutex lock; /* Protects vb2_q, vdev */
+ struct c3_isp_device *isp;
+
+ struct c3_isp_params_buffer *buff;
+ spinlock_t buff_lock; /* Protects params buffer */
+ struct list_head pending;
+};
+
+/*
+ * struct c3_isp_capture - ISP capture device
+ *
+ * @id: capture device ID
+ * @vb2_q: vb2 buffer queue
+ * @vdev: video node
+ * @vfmt: v4l2_format of the capture format
+ * @pad: media pad
+ * @lock: protects vb2_q, vdev
+ * @isp: pointer to c3_isp_device
+ * @rsz: pointer to c3_isp_resizer
+ * @buff: in use buffer
+ * @buff_lock: protects capture buffer
+ * @pending: capture buffer list head
+ */
+struct c3_isp_capture {
+ enum c3_isp_cap_devs id;
+ struct vb2_queue vb2_q;
+ struct video_device vdev;
+ struct v4l2_format vfmt;
+ struct media_pad pad;
+
+ struct mutex lock; /* Protects vb2_q, vdev */
+ struct c3_isp_device *isp;
+ struct c3_isp_resizer *rsz;
+
+ struct c3_isp_dummy_buffer dummy_buff;
+ struct c3_isp_buffer *buff;
+ spinlock_t buff_lock; /* Protects stream buffer */
+ struct list_head pending;
+};
+
+/**
+ * struct c3_isp_info - ISP information
+ *
+ * @clocks: array of ISP clock names
+ * @clock_rates: array of ISP clock rate
+ * @clock_num: actual clock number
+ */
+struct c3_isp_info {
+ char *clocks[C3_ISP_CLOCK_NUM_MAX];
+ u32 clock_rates[C3_ISP_CLOCK_NUM_MAX];
+ u32 clock_num;
+};
+
+/**
+ * struct c3_isp_device - ISP platform device
+ *
+ * @dev: pointer to the struct device
+ * @base: base register address
+ * @clks: array of clocks
+ * @notifier: notifier to register on the v4l2-async API
+ * @v4l2_dev: v4l2_device variable
+ * @media_dev: media device variable
+ * @pipe: media pipeline
+ * @core: ISP core subdev
+ * @resizer: ISP resizer subdev
+ * @stats: ISP stats device
+ * @params: ISP params device
+ * @caps: array of ISP capture device
+ * @frm_sequence: used to record frame id
+ * @info: version-specific ISP information
+ */
+struct c3_isp_device {
+ struct device *dev;
+ void __iomem *base;
+ struct clk_bulk_data clks[C3_ISP_CLOCK_NUM_MAX];
+
+ struct v4l2_async_notifier notifier;
+ struct v4l2_device v4l2_dev;
+ struct media_device media_dev;
+ struct media_pipeline pipe;
+
+ struct c3_isp_core core;
+ struct c3_isp_resizer resizers[C3_ISP_NUM_RSZ];
+ struct c3_isp_stats stats;
+ struct c3_isp_params params;
+ struct c3_isp_capture caps[C3_ISP_NUM_CAP_DEVS];
+
+ u32 frm_sequence;
+ const struct c3_isp_info *info;
+};
+
+u32 c3_isp_read(struct c3_isp_device *isp, u32 reg);
+void c3_isp_write(struct c3_isp_device *isp, u32 reg, u32 val);
+void c3_isp_update_bits(struct c3_isp_device *isp, u32 reg, u32 mask, u32 val);
+
+void c3_isp_core_queue_eof(struct c3_isp_device *isp);
+int c3_isp_core_register(struct c3_isp_device *isp);
+void c3_isp_core_unregister(struct c3_isp_device *isp);
+int c3_isp_resizers_register(struct c3_isp_device *isp);
+void c3_isp_resizers_unregister(struct c3_isp_device *isp);
+int c3_isp_captures_register(struct c3_isp_device *isp);
+void c3_isp_captures_unregister(struct c3_isp_device *isp);
+void c3_isp_captures_isr(struct c3_isp_device *isp);
+void c3_isp_stats_pre_cfg(struct c3_isp_device *isp);
+int c3_isp_stats_register(struct c3_isp_device *isp);
+void c3_isp_stats_unregister(struct c3_isp_device *isp);
+void c3_isp_stats_isr(struct c3_isp_device *isp);
+void c3_isp_params_pre_cfg(struct c3_isp_device *isp);
+int c3_isp_params_register(struct c3_isp_device *isp);
+void c3_isp_params_unregister(struct c3_isp_device *isp);
+void c3_isp_params_isr(struct c3_isp_device *isp);
+
+#endif
diff --git a/drivers/media/platform/amlogic/c3/isp/c3-isp-core.c b/drivers/media/platform/amlogic/c3/isp/c3-isp-core.c
new file mode 100644
index 000000000000..bf83e73dd744
--- /dev/null
+++ b/drivers/media/platform/amlogic/c3/isp/c3-isp-core.c
@@ -0,0 +1,553 @@
+// SPDX-License-Identifier: (GPL-2.0-only OR MIT)
+/*
+ * Copyright (C) 2024 Amlogic, Inc. All rights reserved
+ */
+
+#include <linux/media/amlogic/c3-isp-config.h>
+#include <linux/pm_runtime.h>
+
+#include <media/v4l2-event.h>
+
+#include "c3-isp-common.h"
+#include "c3-isp-regs.h"
+
+#define C3_ISP_CORE_SUBDEV_NAME "c3-isp-core"
+
+static const struct c3_isp_mbus_format_info c3_isp_core_mbus_formats[] = {
+ /* RAW formats */
+ {
+ .mbus_code = MEDIA_BUS_FMT_SBGGR10_1X10,
+ .pads = BIT(C3_ISP_CORE_PAD_SINK_VIDEO),
+ .xofst = C3_ISP_PHASE_OFFSET_0,
+ .yofst = C3_ISP_PHASE_OFFSET_1,
+ }, {
+ .mbus_code = MEDIA_BUS_FMT_SGBRG10_1X10,
+ .pads = BIT(C3_ISP_CORE_PAD_SINK_VIDEO),
+ .xofst = C3_ISP_PHASE_OFFSET_1,
+ .yofst = C3_ISP_PHASE_OFFSET_1,
+ }, {
+ .mbus_code = MEDIA_BUS_FMT_SGRBG10_1X10,
+ .pads = BIT(C3_ISP_CORE_PAD_SINK_VIDEO),
+ .xofst = C3_ISP_PHASE_OFFSET_0,
+ .yofst = C3_ISP_PHASE_OFFSET_0,
+ }, {
+ .mbus_code = MEDIA_BUS_FMT_SRGGB10_1X10,
+ .pads = BIT(C3_ISP_CORE_PAD_SINK_VIDEO),
+ .xofst = C3_ISP_PHASE_OFFSET_1,
+ .yofst = C3_ISP_PHASE_OFFSET_0,
+ }, {
+ .mbus_code = MEDIA_BUS_FMT_SBGGR12_1X12,
+ .pads = BIT(C3_ISP_CORE_PAD_SINK_VIDEO),
+ .xofst = C3_ISP_PHASE_OFFSET_0,
+ .yofst = C3_ISP_PHASE_OFFSET_1,
+ }, {
+ .mbus_code = MEDIA_BUS_FMT_SGBRG12_1X12,
+ .pads = BIT(C3_ISP_CORE_PAD_SINK_VIDEO),
+ .xofst = C3_ISP_PHASE_OFFSET_1,
+ .yofst = C3_ISP_PHASE_OFFSET_1,
+ }, {
+ .mbus_code = MEDIA_BUS_FMT_SGRBG12_1X12,
+ .pads = BIT(C3_ISP_CORE_PAD_SINK_VIDEO),
+ .xofst = C3_ISP_PHASE_OFFSET_0,
+ .yofst = C3_ISP_PHASE_OFFSET_0,
+ }, {
+ .mbus_code = MEDIA_BUS_FMT_SRGGB12_1X12,
+ .pads = BIT(C3_ISP_CORE_PAD_SINK_VIDEO),
+ .xofst = C3_ISP_PHASE_OFFSET_1,
+ .yofst = C3_ISP_PHASE_OFFSET_0,
+ },
+ /* YUV formats */
+ {
+ .mbus_code = MEDIA_BUS_FMT_YUV8_1X24,
+ .pads = BIT(C3_ISP_CORE_PAD_SOURCE_VIDEO),
+ .xofst = C3_ISP_PHASE_OFFSET_NONE,
+ .yofst = C3_ISP_PHASE_OFFSET_NONE,
+ },
+};
+
+static const struct c3_isp_mbus_format_info
+*core_find_format_by_code(u32 code, u32 pad)
+{
+ for (unsigned int i = 0; i < ARRAY_SIZE(c3_isp_core_mbus_formats); i++) {
+ const struct c3_isp_mbus_format_info *info =
+ &c3_isp_core_mbus_formats[i];
+
+ if (info->mbus_code == code && info->pads & BIT(pad))
+ return info;
+ }
+
+ return NULL;
+}
+
+static const struct c3_isp_mbus_format_info
+*core_find_format_by_index(u32 index, u32 pad)
+{
+ for (unsigned int i = 0; i < ARRAY_SIZE(c3_isp_core_mbus_formats); i++) {
+ const struct c3_isp_mbus_format_info *info =
+ &c3_isp_core_mbus_formats[i];
+
+ if (!(info->pads & BIT(pad)))
+ continue;
+
+ if (!index)
+ return info;
+
+ index--;
+ }
+
+ return NULL;
+}
+
+static void c3_isp_core_enable(struct c3_isp_device *isp)
+{
+ c3_isp_update_bits(isp, ISP_TOP_IRQ_EN, ISP_TOP_IRQ_EN_FRAME_END_MASK,
+ ISP_TOP_IRQ_EN_FRAME_END_EN);
+ c3_isp_update_bits(isp, ISP_TOP_IRQ_EN, ISP_TOP_IRQ_EN_3A_DMA_ERR_MASK,
+ ISP_TOP_IRQ_EN_3A_DMA_ERR_EN);
+
+ /* Enable image data to ISP core */
+ c3_isp_update_bits(isp, ISP_TOP_PATH_SEL, ISP_TOP_PATH_SEL_CORE_MASK,
+ ISP_TOP_PATH_SEL_CORE_MIPI_CORE);
+}
+
+static void c3_isp_core_disable(struct c3_isp_device *isp)
+{
+ /* Disable image data to ISP core */
+ c3_isp_update_bits(isp, ISP_TOP_PATH_SEL, ISP_TOP_PATH_SEL_CORE_MASK,
+ ISP_TOP_PATH_SEL_CORE_CORE_DIS);
+
+ c3_isp_update_bits(isp, ISP_TOP_IRQ_EN, ISP_TOP_IRQ_EN_FRAME_END_MASK,
+ ISP_TOP_IRQ_EN_FRAME_END_DIS);
+ c3_isp_update_bits(isp, ISP_TOP_IRQ_EN, ISP_TOP_IRQ_EN_3A_DMA_ERR_MASK,
+ ISP_TOP_IRQ_EN_3A_DMA_ERR_DIS);
+}
+
+/* Set the phase offset of blc, wb and lns */
+static void c3_isp_core_lswb_ofst(struct c3_isp_device *isp,
+ u8 xofst, u8 yofst)
+{
+ c3_isp_update_bits(isp, ISP_LSWB_BLC_PHSOFST, ISP_LSWB_BLC_PHSOFST_HORIZ_OFST_MASK,
+ ISP_LSWB_BLC_PHSOFST_HORIZ_OFST(xofst));
+ c3_isp_update_bits(isp, ISP_LSWB_BLC_PHSOFST, ISP_LSWB_BLC_PHSOFST_VERT_OFST_MASK,
+ ISP_LSWB_BLC_PHSOFST_VERT_OFST(yofst));
+
+ c3_isp_update_bits(isp, ISP_LSWB_WB_PHSOFST, ISP_LSWB_WB_PHSOFST_HORIZ_OFST_MASK,
+ ISP_LSWB_WB_PHSOFST_HORIZ_OFST(xofst));
+ c3_isp_update_bits(isp, ISP_LSWB_WB_PHSOFST, ISP_LSWB_WB_PHSOFST_VERT_OFST_MASK,
+ ISP_LSWB_WB_PHSOFST_VERT_OFST(yofst));
+
+ c3_isp_update_bits(isp, ISP_LSWB_LNS_PHSOFST, ISP_LSWB_LNS_PHSOFST_HORIZ_OFST_MASK,
+ ISP_LSWB_LNS_PHSOFST_HORIZ_OFST(xofst));
+ c3_isp_update_bits(isp, ISP_LSWB_LNS_PHSOFST, ISP_LSWB_LNS_PHSOFST_VERT_OFST_MASK,
+ ISP_LSWB_LNS_PHSOFST_VERT_OFST(yofst));
+}
+
+/* Set the phase offset of af, ae and awb */
+static void c3_isp_core_3a_ofst(struct c3_isp_device *isp,
+ u8 xofst, u8 yofst)
+{
+ c3_isp_update_bits(isp, ISP_AF_CTRL, ISP_AF_CTRL_HORIZ_OFST_MASK,
+ ISP_AF_CTRL_HORIZ_OFST(xofst));
+ c3_isp_update_bits(isp, ISP_AF_CTRL, ISP_AF_CTRL_VERT_OFST_MASK,
+ ISP_AF_CTRL_VERT_OFST(yofst));
+
+ c3_isp_update_bits(isp, ISP_AE_CTRL, ISP_AE_CTRL_HORIZ_OFST_MASK,
+ ISP_AE_CTRL_HORIZ_OFST(xofst));
+ c3_isp_update_bits(isp, ISP_AE_CTRL, ISP_AE_CTRL_VERT_OFST_MASK,
+ ISP_AE_CTRL_VERT_OFST(yofst));
+
+ c3_isp_update_bits(isp, ISP_AWB_CTRL, ISP_AWB_CTRL_HORIZ_OFST_MASK,
+ ISP_AWB_CTRL_HORIZ_OFST(xofst));
+ c3_isp_update_bits(isp, ISP_AWB_CTRL, ISP_AWB_CTRL_VERT_OFST_MASK,
+ ISP_AWB_CTRL_VERT_OFST(yofst));
+}
+
+/* Set the phase offset of demosaic */
+static void c3_isp_core_dms_ofst(struct c3_isp_device *isp,
+ u8 xofst, u8 yofst)
+{
+ c3_isp_update_bits(isp, ISP_DMS_COMMON_PARAM0, ISP_DMS_COMMON_PARAM0_HORIZ_PHS_OFST_MASK,
+ ISP_DMS_COMMON_PARAM0_HORIZ_PHS_OFST(xofst));
+ c3_isp_update_bits(isp, ISP_DMS_COMMON_PARAM0, ISP_DMS_COMMON_PARAM0_VERT_PHS_OFST_MASK,
+ ISP_DMS_COMMON_PARAM0_VERT_PHS_OFST(yofst));
+}
+
+static void c3_isp_core_cfg_format(struct c3_isp_device *isp,
+ struct v4l2_subdev_state *state)
+{
+ struct v4l2_mbus_framefmt *fmt;
+ const struct c3_isp_mbus_format_info *isp_fmt;
+
+ fmt = v4l2_subdev_state_get_format(state, C3_ISP_CORE_PAD_SINK_VIDEO);
+ isp_fmt = core_find_format_by_code(fmt->code, C3_ISP_CORE_PAD_SINK_VIDEO);
+
+ c3_isp_write(isp, ISP_TOP_INPUT_SIZE,
+ ISP_TOP_INPUT_SIZE_HORIZ_SIZE(fmt->width) |
+ ISP_TOP_INPUT_SIZE_VERT_SIZE(fmt->height));
+ c3_isp_write(isp, ISP_TOP_FRM_SIZE,
+ ISP_TOP_FRM_SIZE_CORE_HORIZ_SIZE(fmt->width) |
+ ISP_TOP_FRM_SIZE_CORE_VERT_SIZE(fmt->height));
+
+ c3_isp_update_bits(isp, ISP_TOP_HOLD_SIZE,
+ ISP_TOP_HOLD_SIZE_CORE_HORIZ_SIZE_MASK,
+ ISP_TOP_HOLD_SIZE_CORE_HORIZ_SIZE(fmt->width));
+
+ c3_isp_write(isp, ISP_AF_HV_SIZE,
+ ISP_AF_HV_SIZE_GLB_WIN_XSIZE(fmt->width) |
+ ISP_AF_HV_SIZE_GLB_WIN_YSIZE(fmt->height));
+ c3_isp_write(isp, ISP_AE_HV_SIZE,
+ ISP_AE_HV_SIZE_HORIZ_SIZE(fmt->width) |
+ ISP_AE_HV_SIZE_VERT_SIZE(fmt->height));
+ c3_isp_write(isp, ISP_AWB_HV_SIZE,
+ ISP_AWB_HV_SIZE_HORIZ_SIZE(fmt->width) |
+ ISP_AWB_HV_SIZE_VERT_SIZE(fmt->height));
+
+ c3_isp_core_lswb_ofst(isp, isp_fmt->xofst, isp_fmt->yofst);
+ c3_isp_core_3a_ofst(isp, isp_fmt->xofst, isp_fmt->yofst);
+ c3_isp_core_dms_ofst(isp, isp_fmt->xofst, isp_fmt->yofst);
+}
+
+static int c3_isp_core_enable_streams(struct v4l2_subdev *sd,
+ struct v4l2_subdev_state *state,
+ u32 pad, u64 streams_mask)
+{
+ struct c3_isp_core *core = v4l2_get_subdevdata(sd);
+ u64 sink_streams;
+ int ret;
+
+ core->isp->frm_sequence = 0;
+ c3_isp_core_cfg_format(core->isp, state);
+ c3_isp_core_enable(core->isp);
+
+ sink_streams = v4l2_subdev_state_xlate_streams(state, pad,
+ C3_ISP_CORE_PAD_SINK_VIDEO,
+ &streams_mask);
+ ret = v4l2_subdev_enable_streams(core->src_sd,
+ core->src_sd_pad, sink_streams);
+ if (ret) {
+ c3_isp_core_disable(core->isp);
+ return ret;
+ }
+
+ return 0;
+}
+
+static int c3_isp_core_disable_streams(struct v4l2_subdev *sd,
+ struct v4l2_subdev_state *state,
+ u32 pad, u64 streams_mask)
+{
+ struct c3_isp_core *core = v4l2_get_subdevdata(sd);
+ u64 sink_streams;
+ int ret;
+
+ sink_streams = v4l2_subdev_state_xlate_streams(state, pad,
+ C3_ISP_CORE_PAD_SINK_VIDEO,
+ &streams_mask);
+ ret = v4l2_subdev_disable_streams(core->src_sd,
+ core->src_sd_pad, sink_streams);
+ if (ret)
+ return ret;
+
+ c3_isp_core_disable(core->isp);
+
+ return 0;
+}
+
+static int c3_isp_core_cfg_routing(struct v4l2_subdev *sd,
+ struct v4l2_subdev_state *state,
+ struct v4l2_subdev_krouting *routing)
+{
+ static const struct v4l2_mbus_framefmt format = {
+ .width = C3_ISP_DEFAULT_WIDTH,
+ .height = C3_ISP_DEFAULT_HEIGHT,
+ .code = C3_ISP_CORE_DEF_SRC_PAD_FMT,
+ .field = V4L2_FIELD_NONE,
+ .colorspace = V4L2_COLORSPACE_SRGB,
+ .ycbcr_enc = V4L2_YCBCR_ENC_601,
+ .quantization = V4L2_QUANTIZATION_LIM_RANGE,
+ .xfer_func = V4L2_XFER_FUNC_SRGB,
+ };
+ int ret;
+
+ ret = v4l2_subdev_routing_validate(sd, routing,
+ V4L2_SUBDEV_ROUTING_ONLY_1_TO_1);
+ if (ret)
+ return ret;
+
+ ret = v4l2_subdev_set_routing_with_fmt(sd, state, routing, &format);
+ if (ret)
+ return ret;
+
+ return 0;
+}
+
+static int c3_isp_core_init_routing(struct v4l2_subdev *sd,
+ struct v4l2_subdev_state *state)
+{
+ struct v4l2_subdev_route route;
+ struct v4l2_subdev_krouting routing;
+
+ route.sink_pad = C3_ISP_CORE_PAD_SINK_VIDEO;
+ route.sink_stream = 0;
+ route.source_pad = C3_ISP_CORE_PAD_SOURCE_VIDEO;
+ route.source_stream = 0;
+ route.flags = V4L2_SUBDEV_ROUTE_FL_ACTIVE;
+
+ routing.num_routes = 1;
+ routing.routes = &route;
+
+ return c3_isp_core_cfg_routing(sd, state, &routing);
+}
+
+static int c3_isp_core_enum_mbus_code(struct v4l2_subdev *sd,
+ struct v4l2_subdev_state *state,
+ struct v4l2_subdev_mbus_code_enum *code)
+{
+ const struct c3_isp_mbus_format_info *info;
+ int ret = 0;
+
+ switch (code->pad) {
+ case C3_ISP_CORE_PAD_SINK_VIDEO:
+ case C3_ISP_CORE_PAD_SOURCE_VIDEO:
+ info = core_find_format_by_index(code->index, code->pad);
+ if (!info)
+ ret = -EINVAL;
+ else
+ code->code = info->mbus_code;
+
+ break;
+ case C3_ISP_CORE_PAD_SINK_PARAMS:
+ case C3_ISP_CORE_PAD_SOURCE_STATS:
+ if (code->index)
+ ret = -EINVAL;
+ else
+ code->code = MEDIA_BUS_FMT_METADATA_FIXED;
+
+ break;
+ default:
+ ret = -EINVAL;
+ break;
+ }
+
+ return ret;
+}
+
+static void c3_isp_core_set_sink_fmt(struct v4l2_subdev_state *state,
+ struct v4l2_subdev_format *format)
+{
+ struct v4l2_mbus_framefmt *sink_fmt;
+ struct v4l2_mbus_framefmt *src_fmt;
+ const struct c3_isp_mbus_format_info *isp_fmt;
+
+ sink_fmt = v4l2_subdev_state_get_format(state, format->pad);
+ src_fmt = v4l2_subdev_state_get_format(state, C3_ISP_CORE_PAD_SOURCE_VIDEO);
+
+ isp_fmt = core_find_format_by_code(format->format.code, format->pad);
+ if (!isp_fmt)
+ sink_fmt->code = C3_ISP_CORE_DEF_SINK_PAD_FMT;
+ else
+ sink_fmt->code = format->format.code;
+
+ sink_fmt->width = clamp_t(u32, format->format.width,
+ C3_ISP_MIN_WIDTH, C3_ISP_MAX_WIDTH);
+ sink_fmt->height = clamp_t(u32, format->format.height,
+ C3_ISP_MIN_HEIGHT, C3_ISP_MAX_HEIGHT);
+
+ src_fmt->width = sink_fmt->width;
+ src_fmt->height = sink_fmt->height;
+
+ format->format = *sink_fmt;
+}
+
+static void c3_isp_core_set_source_fmt(struct v4l2_subdev_state *state,
+ struct v4l2_subdev_format *format)
+{
+ const struct c3_isp_mbus_format_info *isp_fmt;
+ struct v4l2_mbus_framefmt *src_fmt;
+
+ src_fmt = v4l2_subdev_state_get_format(state, format->pad);
+
+ isp_fmt = core_find_format_by_code(format->format.code, format->pad);
+ if (!isp_fmt)
+ src_fmt->code = C3_ISP_CORE_DEF_SRC_PAD_FMT;
+ else
+ src_fmt->code = format->format.code;
+
+ format->format = *src_fmt;
+}
+
+static int c3_isp_core_set_fmt(struct v4l2_subdev *sd,
+ struct v4l2_subdev_state *state,
+ struct v4l2_subdev_format *format)
+{
+ struct v4l2_mbus_framefmt *fmt;
+
+ if (format->pad == C3_ISP_CORE_PAD_SINK_VIDEO) {
+ c3_isp_core_set_sink_fmt(state, format);
+ } else if (format->pad == C3_ISP_CORE_PAD_SINK_PARAMS ||
+ format->pad == C3_ISP_CORE_PAD_SOURCE_STATS) {
+ fmt = v4l2_subdev_state_get_format(state, format->pad);
+ format->format = *fmt;
+ } else if (format->pad == C3_ISP_CORE_PAD_SOURCE_VIDEO) {
+ c3_isp_core_set_source_fmt(state, format);
+ }
+
+ return 0;
+}
+
+static int c3_isp_core_init_state(struct v4l2_subdev *sd,
+ struct v4l2_subdev_state *state)
+{
+ struct v4l2_mbus_framefmt *sink_fmt;
+ struct v4l2_mbus_framefmt *src_fmt;
+
+ /* Video sink pad */
+ sink_fmt = v4l2_subdev_state_get_format(state, C3_ISP_CORE_PAD_SINK_VIDEO);
+ sink_fmt->width = C3_ISP_DEFAULT_WIDTH;
+ sink_fmt->height = C3_ISP_DEFAULT_HEIGHT;
+ sink_fmt->field = V4L2_FIELD_NONE;
+ sink_fmt->code = C3_ISP_CORE_DEF_SINK_PAD_FMT;
+ sink_fmt->colorspace = V4L2_COLORSPACE_RAW;
+ sink_fmt->xfer_func = V4L2_XFER_FUNC_NONE;
+ sink_fmt->ycbcr_enc = V4L2_YCBCR_ENC_601;
+ sink_fmt->quantization = V4L2_QUANTIZATION_FULL_RANGE;
+
+ /* Video source pad */
+ src_fmt = v4l2_subdev_state_get_format(state, C3_ISP_CORE_PAD_SOURCE_VIDEO);
+ src_fmt->width = C3_ISP_DEFAULT_WIDTH;
+ src_fmt->height = C3_ISP_DEFAULT_HEIGHT;
+ src_fmt->field = V4L2_FIELD_NONE;
+ src_fmt->code = C3_ISP_CORE_DEF_SRC_PAD_FMT;
+ src_fmt->colorspace = V4L2_COLORSPACE_SRGB;
+ src_fmt->xfer_func = V4L2_XFER_FUNC_SRGB;
+ src_fmt->ycbcr_enc = V4L2_YCBCR_ENC_601;
+ src_fmt->quantization = V4L2_QUANTIZATION_LIM_RANGE;
+
+ /* Parameters pad */
+ sink_fmt = v4l2_subdev_state_get_format(state, C3_ISP_CORE_PAD_SINK_PARAMS);
+ sink_fmt->width = 0;
+ sink_fmt->height = 0;
+ sink_fmt->field = V4L2_FIELD_NONE;
+ sink_fmt->code = MEDIA_BUS_FMT_METADATA_FIXED;
+
+ /* Statistics pad */
+ src_fmt = v4l2_subdev_state_get_format(state, C3_ISP_CORE_PAD_SOURCE_STATS);
+ src_fmt->width = 0;
+ src_fmt->height = 0;
+ src_fmt->field = V4L2_FIELD_NONE;
+ src_fmt->code = MEDIA_BUS_FMT_METADATA_FIXED;
+
+ return c3_isp_core_init_routing(sd, state);
+}
+
+static int c3_isp_core_subscribe_event(struct v4l2_subdev *sd, struct v4l2_fh *fh,
+ struct v4l2_event_subscription *sub)
+{
+ if (sub->type != V4L2_EVENT_FRAME_SYNC)
+ return -EINVAL;
+
+ /* V4L2_EVENT_FRAME_SYNC doesn't need id, so should set 0 */
+ if (sub->id != 0)
+ return -EINVAL;
+
+ return v4l2_event_subscribe(fh, sub, 0, NULL);
+}
+
+static const struct v4l2_subdev_pad_ops c3_isp_core_pad_ops = {
+ .enum_mbus_code = c3_isp_core_enum_mbus_code,
+ .get_fmt = v4l2_subdev_get_fmt,
+ .set_fmt = c3_isp_core_set_fmt,
+ .enable_streams = c3_isp_core_enable_streams,
+ .disable_streams = c3_isp_core_disable_streams,
+};
+
+static const struct v4l2_subdev_core_ops c3_isp_core_core_ops = {
+ .subscribe_event = c3_isp_core_subscribe_event,
+ .unsubscribe_event = v4l2_event_subdev_unsubscribe,
+};
+
+static const struct v4l2_subdev_ops c3_isp_core_subdev_ops = {
+ .core = &c3_isp_core_core_ops,
+ .pad = &c3_isp_core_pad_ops,
+};
+
+static const struct v4l2_subdev_internal_ops c3_isp_core_internal_ops = {
+ .init_state = c3_isp_core_init_state,
+};
+
+static int c3_isp_core_link_validate(struct media_link *link)
+{
+ if (link->sink->index == C3_ISP_CORE_PAD_SINK_PARAMS)
+ return 0;
+
+ return v4l2_subdev_link_validate(link);
+}
+
+/* Media entity operations */
+static const struct media_entity_operations c3_isp_core_entity_ops = {
+ .link_validate = c3_isp_core_link_validate,
+};
+
+void c3_isp_core_queue_eof(struct c3_isp_device *isp)
+{
+ struct v4l2_event event = {
+ .type = V4L2_EVENT_FRAME_SYNC,
+ };
+
+ event.u.frame_sync.frame_sequence = isp->frm_sequence;
+ v4l2_event_queue(isp->core.sd.devnode, &event);
+}
+
+int c3_isp_core_register(struct c3_isp_device *isp)
+{
+ struct c3_isp_core *core = &isp->core;
+ struct v4l2_subdev *sd = &core->sd;
+ int ret;
+
+ v4l2_subdev_init(sd, &c3_isp_core_subdev_ops);
+ sd->owner = THIS_MODULE;
+ sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE | V4L2_SUBDEV_FL_HAS_EVENTS;
+ sd->internal_ops = &c3_isp_core_internal_ops;
+ snprintf(sd->name, sizeof(sd->name), "%s", C3_ISP_CORE_SUBDEV_NAME);
+
+ sd->entity.function = MEDIA_ENT_F_PROC_VIDEO_PIXEL_FORMATTER;
+ sd->entity.ops = &c3_isp_core_entity_ops;
+
+ core->isp = isp;
+ sd->dev = isp->dev;
+ v4l2_set_subdevdata(sd, core);
+
+ core->pads[C3_ISP_CORE_PAD_SINK_VIDEO].flags = MEDIA_PAD_FL_SINK;
+ core->pads[C3_ISP_CORE_PAD_SINK_PARAMS].flags = MEDIA_PAD_FL_SINK;
+ core->pads[C3_ISP_CORE_PAD_SOURCE_STATS].flags = MEDIA_PAD_FL_SOURCE;
+ core->pads[C3_ISP_CORE_PAD_SOURCE_VIDEO].flags = MEDIA_PAD_FL_SOURCE;
+ ret = media_entity_pads_init(&sd->entity, C3_ISP_CORE_PAD_MAX, core->pads);
+ if (ret)
+ return ret;
+
+ ret = v4l2_subdev_init_finalize(sd);
+ if (ret)
+ goto err_entity_cleanup;
+
+ ret = v4l2_device_register_subdev(&isp->v4l2_dev, sd);
+ if (ret)
+ goto err_subdev_cleanup;
+
+ return 0;
+
+err_subdev_cleanup:
+ v4l2_subdev_cleanup(sd);
+err_entity_cleanup:
+ media_entity_cleanup(&sd->entity);
+ return ret;
+}
+
+void c3_isp_core_unregister(struct c3_isp_device *isp)
+{
+ struct c3_isp_core *core = &isp->core;
+ struct v4l2_subdev *sd = &core->sd;
+
+ v4l2_device_unregister_subdev(sd);
+ v4l2_subdev_cleanup(sd);
+ media_entity_cleanup(&sd->entity);
+}
diff --git a/drivers/media/platform/amlogic/c3/isp/c3-isp-dev.c b/drivers/media/platform/amlogic/c3/isp/c3-isp-dev.c
new file mode 100644
index 000000000000..0c6795ab9925
--- /dev/null
+++ b/drivers/media/platform/amlogic/c3/isp/c3-isp-dev.c
@@ -0,0 +1,459 @@
+// SPDX-License-Identifier: (GPL-2.0-only OR MIT)
+/*
+ * Copyright (C) 2024 Amlogic, Inc. All rights reserved
+ */
+
+#include <linux/clk.h>
+#include <linux/device.h>
+#include <linux/module.h>
+#include <linux/mutex.h>
+#include <linux/platform_device.h>
+#include <linux/pm_runtime.h>
+
+#include <media/v4l2-common.h>
+#include <media/v4l2-device.h>
+#include <media/v4l2-fwnode.h>
+#include <media/v4l2-mc.h>
+
+#include "c3-isp-common.h"
+#include "c3-isp-regs.h"
+
+u32 c3_isp_read(struct c3_isp_device *isp, u32 reg)
+{
+ return readl(isp->base + reg);
+}
+
+void c3_isp_write(struct c3_isp_device *isp, u32 reg, u32 val)
+{
+ writel(val, isp->base + reg);
+}
+
+void c3_isp_update_bits(struct c3_isp_device *isp, u32 reg, u32 mask, u32 val)
+{
+ u32 orig, tmp;
+
+ orig = c3_isp_read(isp, reg);
+
+ tmp = orig & ~mask;
+ tmp |= val & mask;
+
+ if (tmp != orig)
+ c3_isp_write(isp, reg, tmp);
+}
+
+/* PM runtime suspend */
+static int c3_isp_runtime_suspend(struct device *dev)
+{
+ struct c3_isp_device *isp = dev_get_drvdata(dev);
+
+ clk_bulk_disable_unprepare(isp->info->clock_num, isp->clks);
+
+ return 0;
+}
+
+/* PM runtime resume */
+static int c3_isp_runtime_resume(struct device *dev)
+{
+ struct c3_isp_device *isp = dev_get_drvdata(dev);
+
+ return clk_bulk_prepare_enable(isp->info->clock_num, isp->clks);
+}
+
+static const struct dev_pm_ops c3_isp_pm_ops = {
+ SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
+ pm_runtime_force_resume)
+ RUNTIME_PM_OPS(c3_isp_runtime_suspend,
+ c3_isp_runtime_resume, NULL)
+};
+
+/* IRQ handling */
+static irqreturn_t c3_isp_irq_handler(int irq, void *dev)
+{
+ struct c3_isp_device *isp = dev;
+ u32 status;
+
+ /* Get irq status and clear irq status */
+ status = c3_isp_read(isp, ISP_TOP_RO_IRQ_STAT);
+ c3_isp_write(isp, ISP_TOP_IRQ_CLR, status);
+
+ if (status & ISP_TOP_IRQ_EN_FRAME_END_EN) {
+ c3_isp_core_queue_eof(isp);
+ c3_isp_stats_isr(isp);
+ c3_isp_params_isr(isp);
+ c3_isp_captures_isr(isp);
+ isp->frm_sequence++;
+ }
+
+ if (status & ISP_TOP_IRQ_EN_3A_DMA_ERR_EN)
+ dev_dbg(isp->dev, "ISP IRQ Stats DMA Error\n");
+
+ return IRQ_HANDLED;
+}
+
+/* Subdev notifier register */
+static int c3_isp_notify_bound(struct v4l2_async_notifier *notifier,
+ struct v4l2_subdev *sd,
+ struct v4l2_async_connection *asc)
+{
+ struct c3_isp_device *isp =
+ container_of(notifier, struct c3_isp_device, notifier);
+ struct c3_isp_core *core = &isp->core;
+ struct media_pad *sink = &core->sd.entity.pads[C3_ISP_CORE_PAD_SINK_VIDEO];
+ int ret;
+
+ ret = media_entity_get_fwnode_pad(&sd->entity,
+ sd->fwnode, MEDIA_PAD_FL_SOURCE);
+ if (ret < 0) {
+ dev_err(isp->dev, "Failed to find pad for %s\n", sd->name);
+ return ret;
+ }
+
+ core->src_sd = sd;
+ core->src_sd_pad = ret;
+
+ return v4l2_create_fwnode_links_to_pad(sd, sink, MEDIA_LNK_FL_ENABLED |
+ MEDIA_LNK_FL_IMMUTABLE);
+}
+
+static int c3_isp_notify_complete(struct v4l2_async_notifier *notifier)
+{
+ struct c3_isp_device *isp =
+ container_of(notifier, struct c3_isp_device, notifier);
+ int ret;
+
+ ret = v4l2_device_register_subdev_nodes(&isp->v4l2_dev);
+ if (ret < 0) {
+ dev_err(isp->dev,
+ "Failed to register subdev nodes: %d\n", ret);
+ return ret;
+ }
+
+ dev_info(isp->dev, "notify complete\n");
+
+ return media_device_register(&isp->media_dev);
+}
+
+static void c3_isp_notify_destroy(struct v4l2_async_connection *asc)
+{
+ struct c3_isp_device *isp =
+ container_of(asc->notifier, struct c3_isp_device, notifier);
+
+ media_device_unregister(&isp->media_dev);
+}
+
+static const struct v4l2_async_notifier_operations c3_isp_notify_ops = {
+ .bound = c3_isp_notify_bound,
+ .complete = c3_isp_notify_complete,
+ .destroy = c3_isp_notify_destroy,
+};
+
+static int c3_isp_async_nf_register(struct c3_isp_device *isp)
+{
+ struct v4l2_async_connection *asc;
+ struct fwnode_handle *ep;
+ int ret;
+
+ v4l2_async_nf_init(&isp->notifier, &isp->v4l2_dev);
+
+ ep = fwnode_graph_get_endpoint_by_id(dev_fwnode(isp->dev), 0, 0,
+ FWNODE_GRAPH_ENDPOINT_NEXT);
+ if (!ep)
+ return -ENOTCONN;
+
+ asc = v4l2_async_nf_add_fwnode_remote(&isp->notifier, ep,
+ struct v4l2_async_connection);
+ fwnode_handle_put(ep);
+
+ if (IS_ERR(asc))
+ return PTR_ERR(asc);
+
+ isp->notifier.ops = &c3_isp_notify_ops;
+ ret = v4l2_async_nf_register(&isp->notifier);
+ if (ret)
+ v4l2_async_nf_cleanup(&isp->notifier);
+
+ return ret;
+}
+
+static void c3_isp_async_nf_unregister(struct c3_isp_device *isp)
+{
+ v4l2_async_nf_unregister(&isp->notifier);
+ v4l2_async_nf_cleanup(&isp->notifier);
+}
+
+static int c3_isp_v4l2_register(struct c3_isp_device *isp)
+{
+ struct media_device *media_dev = &isp->media_dev;
+ struct v4l2_device *v4l2_dev = &isp->v4l2_dev;
+ int ret;
+
+ /* Initialize media device */
+ strscpy(media_dev->model, C3_ISP_DRIVER_NAME,
+ sizeof(media_dev->model));
+ media_dev->dev = isp->dev;
+
+ media_device_init(media_dev);
+
+ /* Initialize v4l2 device */
+ v4l2_dev->mdev = media_dev;
+ strscpy(v4l2_dev->name, C3_ISP_DRIVER_NAME,
+ sizeof(v4l2_dev->name));
+
+ ret = v4l2_device_register(isp->dev, v4l2_dev);
+ if (ret) {
+ media_device_cleanup(media_dev);
+ dev_err(isp->dev,
+ "Failed to register V4L2 device: %d\n", ret);
+ }
+
+ return ret;
+}
+
+static void c3_isp_v4l2_unregister(struct c3_isp_device *isp)
+{
+ v4l2_device_unregister(&isp->v4l2_dev);
+ media_device_cleanup(&isp->media_dev);
+}
+
+static void c3_isp_remove_links(struct c3_isp_device *isp)
+{
+ unsigned int i;
+
+ media_entity_remove_links(&isp->core.sd.entity);
+
+ for (i = 0; i < C3_ISP_NUM_RSZ; i++)
+ media_entity_remove_links(&isp->resizers[i].sd.entity);
+
+ for (i = 0; i < C3_ISP_NUM_CAP_DEVS; i++)
+ media_entity_remove_links(&isp->caps[i].vdev.entity);
+}
+
+static int c3_isp_create_links(struct c3_isp_device *isp)
+{
+ unsigned int i;
+ int ret;
+
+ for (i = 0; i < C3_ISP_NUM_RSZ; i++) {
+ ret = media_create_pad_link(&isp->resizers[i].sd.entity,
+ C3_ISP_RESIZER_PAD_SOURCE,
+ &isp->caps[i].vdev.entity,
+ 0, MEDIA_LNK_FL_ENABLED | MEDIA_LNK_FL_IMMUTABLE);
+ if (ret) {
+ dev_err(isp->dev, "Failed to link resizer %u and capture %u\n", i, i);
+ goto err_remove_links;
+ }
+
+ ret = media_create_pad_link(&isp->core.sd.entity,
+ C3_ISP_CORE_PAD_SOURCE_VIDEO,
+ &isp->resizers[i].sd.entity,
+ C3_ISP_RESIZER_PAD_SINK,
+ MEDIA_LNK_FL_ENABLED);
+ if (ret) {
+ dev_err(isp->dev, "Failed to link core and resizer %u\n", i);
+ goto err_remove_links;
+ }
+ }
+
+ ret = media_create_pad_link(&isp->core.sd.entity,
+ C3_ISP_CORE_PAD_SOURCE_STATS,
+ &isp->stats.vdev.entity,
+ 0, MEDIA_LNK_FL_ENABLED);
+ if (ret) {
+ dev_err(isp->dev, "Failed to link core and stats\n");
+ goto err_remove_links;
+ }
+
+ ret = media_create_pad_link(&isp->params.vdev.entity, 0,
+ &isp->core.sd.entity,
+ C3_ISP_CORE_PAD_SINK_PARAMS,
+ MEDIA_LNK_FL_ENABLED);
+ if (ret) {
+ dev_err(isp->dev, "Failed to link params and core\n");
+ goto err_remove_links;
+ }
+
+ return 0;
+
+err_remove_links:
+ c3_isp_remove_links(isp);
+ return ret;
+}
+
+static int c3_isp_videos_register(struct c3_isp_device *isp)
+{
+ int ret;
+
+ ret = c3_isp_captures_register(isp);
+ if (ret)
+ return ret;
+
+ ret = c3_isp_stats_register(isp);
+ if (ret)
+ goto err_captures_unregister;
+
+ ret = c3_isp_params_register(isp);
+ if (ret)
+ goto err_stats_unregister;
+
+ ret = c3_isp_create_links(isp);
+ if (ret)
+ goto err_params_unregister;
+
+ return 0;
+
+err_params_unregister:
+ c3_isp_params_unregister(isp);
+err_stats_unregister:
+ c3_isp_stats_unregister(isp);
+err_captures_unregister:
+ c3_isp_captures_unregister(isp);
+ return ret;
+}
+
+static void c3_isp_videos_unregister(struct c3_isp_device *isp)
+{
+ c3_isp_remove_links(isp);
+ c3_isp_params_unregister(isp);
+ c3_isp_stats_unregister(isp);
+ c3_isp_captures_unregister(isp);
+}
+
+static int c3_isp_cfg_clocks(struct c3_isp_device *isp)
+{
+ const struct c3_isp_info *info = isp->info;
+ int ret;
+ u32 i;
+
+ for (i = 0; i < info->clock_num; i++)
+ isp->clks[i].id = info->clocks[i];
+
+ ret = devm_clk_bulk_get(isp->dev, info->clock_num, isp->clks);
+ if (ret)
+ return ret;
+
+ for (i = 0; i < info->clock_num; i++) {
+ if (!info->clock_rates[i])
+ continue;
+ ret = clk_set_rate(isp->clks[i].clk, info->clock_rates[i]);
+ if (ret) {
+ dev_err(isp->dev, "Failed to set %s rate %u\n", info->clocks[i],
+ info->clock_rates[i]);
+ return ret;
+ }
+ }
+
+ return 0;
+}
+
+static int c3_isp_probe(struct platform_device *pdev)
+{
+ struct device *dev = &pdev->dev;
+ struct c3_isp_device *isp;
+ int irq;
+ int ret;
+
+ isp = devm_kzalloc(dev, sizeof(*isp), GFP_KERNEL);
+ if (!isp)
+ return -ENOMEM;
+
+ isp->info = of_device_get_match_data(dev);
+ isp->dev = dev;
+
+ isp->base = devm_platform_ioremap_resource_byname(pdev, "isp");
+ if (IS_ERR(isp->base))
+ return dev_err_probe(dev, PTR_ERR(isp->base),
+ "Failed to ioremap resource\n");
+
+ irq = platform_get_irq(pdev, 0);
+ if (irq < 0)
+ return irq;
+
+ ret = c3_isp_cfg_clocks(isp);
+ if (ret)
+ return dev_err_probe(dev, ret, "Failed to configure clocks\n");
+
+ platform_set_drvdata(pdev, isp);
+
+ pm_runtime_enable(dev);
+
+ ret = c3_isp_v4l2_register(isp);
+ if (ret)
+ goto err_runtime_disable;
+
+ ret = c3_isp_core_register(isp);
+ if (ret)
+ goto err_v4l2_unregister;
+
+ ret = c3_isp_resizers_register(isp);
+ if (ret)
+ goto err_core_unregister;
+
+ ret = c3_isp_async_nf_register(isp);
+ if (ret)
+ goto err_resizers_unregister;
+
+ ret = devm_request_irq(dev, irq,
+ c3_isp_irq_handler, IRQF_SHARED,
+ dev_driver_string(dev), isp);
+ if (ret)
+ goto err_nf_unregister;
+
+ ret = c3_isp_videos_register(isp);
+ if (ret)
+ goto err_nf_unregister;
+
+ return 0;
+
+err_nf_unregister:
+ c3_isp_async_nf_unregister(isp);
+err_resizers_unregister:
+ c3_isp_resizers_unregister(isp);
+err_core_unregister:
+ c3_isp_core_unregister(isp);
+err_v4l2_unregister:
+ c3_isp_v4l2_unregister(isp);
+err_runtime_disable:
+ pm_runtime_disable(dev);
+ return ret;
+};
+
+static void c3_isp_remove(struct platform_device *pdev)
+{
+ struct c3_isp_device *isp = platform_get_drvdata(pdev);
+
+ c3_isp_videos_unregister(isp);
+ c3_isp_async_nf_unregister(isp);
+ c3_isp_core_unregister(isp);
+ c3_isp_resizers_unregister(isp);
+ c3_isp_v4l2_unregister(isp);
+ pm_runtime_disable(isp->dev);
+};
+
+static const struct c3_isp_info isp_info = {
+ .clocks = {"vapb", "isp0"},
+ .clock_rates = {0, 400000000},
+ .clock_num = 2
+};
+
+static const struct of_device_id c3_isp_of_match[] = {
+ { .compatible = "amlogic,c3-isp",
+ .data = &isp_info },
+ { },
+};
+MODULE_DEVICE_TABLE(of, c3_isp_of_match);
+
+static struct platform_driver c3_isp_driver = {
+ .probe = c3_isp_probe,
+ .remove = c3_isp_remove,
+ .driver = {
+ .name = "c3-isp",
+ .of_match_table = c3_isp_of_match,
+ .pm = pm_ptr(&c3_isp_pm_ops),
+ },
+};
+
+module_platform_driver(c3_isp_driver);
+
+MODULE_AUTHOR("Keke Li <keke.li@xxxxxxxxxxx>");
+MODULE_DESCRIPTION("Amlogic C3 ISP pipeline");
+MODULE_LICENSE("GPL");
diff --git a/drivers/media/platform/amlogic/c3/isp/c3-isp-params.c b/drivers/media/platform/amlogic/c3/isp/c3-isp-params.c
new file mode 100644
index 000000000000..dc33a57dcd59
--- /dev/null
+++ b/drivers/media/platform/amlogic/c3/isp/c3-isp-params.c
@@ -0,0 +1,942 @@
+// SPDX-License-Identifier: (GPL-2.0-only OR MIT)
+/*
+ * Copyright (C) 2024 Amlogic, Inc. All rights reserved
+ */
+
+#include <linux/cleanup.h>
+#include <linux/media/amlogic/c3-isp-config.h>
+#include <linux/pm_runtime.h>
+
+#include <media/v4l2-ioctl.h>
+#include <media/v4l2-mc.h>
+#include <media/videobuf2-vmalloc.h>
+
+#include "c3-isp-common.h"
+#include "c3-isp-regs.h"
+
+/*
+ * union c3_isp_params_block - Generalisation of a parameter block
+ *
+ * This union allows the driver to treat a block as a generic pointer to this
+ * union and safely access the header and block-specific struct without having
+ * to resort to casting. The header member is accessed first, and the type field
+ * checked which allows the driver to determine which of the other members
+ * should be used. The data member at the end allows a pointer to an address
+ * within the data member of :c:type:`c3_isp_params_cfg` to initialise a
+ * union variable.
+ *
+ * @header: Pointer to the shared header struct embedded as the
+ * first member of all the possible other members (except
+ * @data). This member would be accessed first and the type
+ * field checked to determine which of the other members
+ * should be accessed.
+ * @awb_gains: For header->type == C3_ISP_PARAMS_BLOCK_AWB_GAINS
+ * @awb_cfg: For header->type == C3_ISP_PARAMS_BLOCK_AWB_CONFIG
+ * @ae_cfg: For header->type == C3_ISP_PARAMS_BLOCK_AE_CONFIG
+ * @af_cfg: For header->type == C3_ISP_PARAMS_BLOCK_AF_CONFIG
+ * @pst_gamma: For header->type == C3_ISP_PARAMS_BLOCK_PST_GAMMA
+ * @ccm: For header->type == C3_ISP_PARAMS_BLOCK_PST_CCM
+ * @csc: For header->type == C3_ISP_PARAMS_BLOCK_PST_CSC
+ * @blc: For header->type == C3_ISP_PARAMS_BLOCK_PST_BLC
+ * @data: Allows easy initialisation of a union variable with a
+ * pointer into a u8 array.
+ */
+union c3_isp_params_block {
+ struct c3_isp_params_block_header *header;
+ struct c3_isp_params_awb_gains *awb_gains;
+ struct c3_isp_params_awb_config *awb_cfg;
+ struct c3_isp_params_ae_config *ae_cfg;
+ struct c3_isp_params_af_config *af_cfg;
+ struct c3_isp_params_pst_gamma *pst_gamma;
+ struct c3_isp_params_ccm *ccm;
+ struct c3_isp_params_csc *csc;
+ struct c3_isp_params_blc *blc;
+ u8 *data;
+};
+
+typedef void (*c3_isp_block_handler)(struct c3_isp_device *isp,
+ union c3_isp_params_block block);
+
+struct c3_isp_params_handler {
+ size_t size;
+ c3_isp_block_handler handler;
+};
+
+#define to_c3_isp_params_buffer(vbuf) \
+ container_of(vbuf, struct c3_isp_params_buffer, vb)
+
+/* Hardware configuration */
+
+static void c3_isp_params_cfg_awb_gains(struct c3_isp_device *isp,
+ union c3_isp_params_block block)
+{
+ struct c3_isp_params_awb_gains *awb_gains = block.awb_gains;
+
+ if (block.header->flags & C3_ISP_PARAMS_BLOCK_FL_DISABLED) {
+ c3_isp_update_bits(isp, ISP_TOP_BEO_CTRL, ISP_TOP_BEO_CTRL_WB_EN_MASK,
+ ISP_TOP_BEO_CTRL_WB_DIS);
+ return;
+ }
+
+ c3_isp_update_bits(isp, ISP_LSWB_WB_GAIN0, ISP_LSWB_WB_GAIN0_GR_GAIN_MASK,
+ ISP_LSWB_WB_GAIN0_GR_GAIN(awb_gains->gr_gain));
+ c3_isp_update_bits(isp, ISP_LSWB_WB_GAIN0, ISP_LSWB_WB_GAIN0_R_GAIN_MASK,
+ ISP_LSWB_WB_GAIN0_R_GAIN(awb_gains->r_gain));
+ c3_isp_update_bits(isp, ISP_LSWB_WB_GAIN1, ISP_LSWB_WB_GAIN1_B_GAIN_MASK,
+ ISP_LSWB_WB_GAIN1_B_GAIN(awb_gains->b_gain));
+ c3_isp_update_bits(isp, ISP_LSWB_WB_GAIN1, ISP_LSWB_WB_GAIN1_GB_GAIN_MASK,
+ ISP_LSWB_WB_GAIN1_GB_GAIN(awb_gains->gb_gain));
+ c3_isp_update_bits(isp, ISP_LSWB_WB_GAIN2, ISP_LSWB_WB_GAIN2_IR_GAIN_MASK,
+ ISP_LSWB_WB_GAIN2_IR_GAIN(awb_gains->gb_gain));
+
+ c3_isp_update_bits(isp, ISP_TOP_BEO_CTRL,
+ ISP_TOP_BEO_CTRL_WB_EN_MASK, ISP_TOP_BEO_CTRL_WB_EN);
+}
+
+static void c3_isp_params_cfg_awb_weight(struct c3_isp_device *isp,
+ struct c3_isp_params_awb_config *awb_cfg)
+{
+ unsigned int zones_num;
+ unsigned int base;
+ unsigned int data;
+ unsigned int i;
+
+ /* Set the weight address to 0 position */
+ c3_isp_write(isp, ISP_AWB_BLK_WT_ADDR, 0);
+
+ zones_num = awb_cfg->horiz_zones_num * awb_cfg->vert_zones_num;
+
+ /* Need to write 8 weights at once */
+ for (i = 0; i < zones_num / 8; i++) {
+ base = i * 8;
+ data = ISP_AWB_BLK_WT_DATA_IDX_DATA(0, awb_cfg->zone_weight[base + 0]) |
+ ISP_AWB_BLK_WT_DATA_IDX_DATA(1, awb_cfg->zone_weight[base + 1]) |
+ ISP_AWB_BLK_WT_DATA_IDX_DATA(2, awb_cfg->zone_weight[base + 2]) |
+ ISP_AWB_BLK_WT_DATA_IDX_DATA(3, awb_cfg->zone_weight[base + 3]) |
+ ISP_AWB_BLK_WT_DATA_IDX_DATA(4, awb_cfg->zone_weight[base + 4]) |
+ ISP_AWB_BLK_WT_DATA_IDX_DATA(5, awb_cfg->zone_weight[base + 5]) |
+ ISP_AWB_BLK_WT_DATA_IDX_DATA(6, awb_cfg->zone_weight[base + 6]) |
+ ISP_AWB_BLK_WT_DATA_IDX_DATA(7, awb_cfg->zone_weight[base + 7]);
+ c3_isp_write(isp, ISP_AWB_BLK_WT_DATA, data);
+ }
+
+ if (zones_num % 8) {
+ data = 0;
+ base = i * 8;
+
+ for (i = 0; i < zones_num % 8; i++)
+ data |= ISP_AWB_BLK_WT_DATA_IDX_DATA(i, awb_cfg->zone_weight[base + i]);
+
+ c3_isp_write(isp, ISP_AWB_BLK_WT_DATA, data);
+ }
+}
+
+static void c3_isp_params_cfg_awb_cood(struct c3_isp_device *isp,
+ struct c3_isp_params_awb_config *awb_cfg)
+{
+ unsigned int max_point_num;
+
+ /* The number of points is one more than the number of edges */
+ max_point_num = max(awb_cfg->horiz_zones_num, awb_cfg->vert_zones_num) + 1;
+
+ /* Set the index address to 0 position */
+ c3_isp_write(isp, ISP_AWB_IDX_ADDR, 0);
+
+ for (unsigned int i = 0; i < max_point_num; i++) {
+ c3_isp_write(isp, ISP_AWB_IDX_DATA,
+ ISP_AWB_IDX_DATA_HIDX_DATA(awb_cfg->horiz_cood[i]) |
+ ISP_AWB_IDX_DATA_VIDX_DATA(awb_cfg->vert_cood[i]));
+ }
+}
+
+static void c3_isp_params_cfg_awb_config(struct c3_isp_device *isp,
+ union c3_isp_params_block block)
+{
+ struct c3_isp_params_awb_config *awb_cfg = block.awb_cfg;
+
+ if (block.header->flags & C3_ISP_PARAMS_BLOCK_FL_DISABLED) {
+ c3_isp_update_bits(isp, ISP_TOP_3A_STAT_CRTL,
+ ISP_TOP_3A_STAT_CRTL_AWB_STAT_EN_MASK,
+ ISP_TOP_3A_STAT_CRTL_AWB_STAT_DIS);
+ return;
+ }
+
+ c3_isp_update_bits(isp, ISP_TOP_3A_STAT_CRTL,
+ ISP_TOP_3A_STAT_CRTL_AWB_STAT_POINT_MASK,
+ ISP_TOP_3A_STAT_CRTL_AWB_STAT_POINT(awb_cfg->tap_point));
+
+ c3_isp_update_bits(isp, ISP_AWB_STAT_CTRL2, ISP_AWB_STAT_CTRL2_SATUR_CTRL_MASK,
+ ISP_AWB_STAT_CTRL2_SATUR_CTRL(awb_cfg->satur_vald));
+
+ c3_isp_update_bits(isp, ISP_AWB_HV_BLKNUM, ISP_AWB_HV_BLKNUM_HORIZ_BLKS_NUM_MASK,
+ ISP_AWB_HV_BLKNUM_HORIZ_BLKS_NUM(awb_cfg->horiz_zones_num));
+ c3_isp_update_bits(isp, ISP_AWB_HV_BLKNUM, ISP_AWB_HV_BLKNUM_VERT_BLKS_NUM_MASK,
+ ISP_AWB_HV_BLKNUM_VERT_BLKS_NUM(awb_cfg->vert_zones_num));
+
+ c3_isp_update_bits(isp, ISP_AWB_STAT_RG, ISP_AWB_STAT_RG_MIN_VALUE_MASK,
+ ISP_AWB_STAT_RG_MIN_VALUE(awb_cfg->rg_min));
+ c3_isp_update_bits(isp, ISP_AWB_STAT_RG, ISP_AWB_STAT_RG_MAX_VALUE_MASK,
+ ISP_AWB_STAT_RG_MAX_VALUE(awb_cfg->rg_max));
+
+ c3_isp_update_bits(isp, ISP_AWB_STAT_BG, ISP_AWB_STAT_BG_MIN_VALUE_MASK,
+ ISP_AWB_STAT_BG_MIN_VALUE(awb_cfg->bg_min));
+ c3_isp_update_bits(isp, ISP_AWB_STAT_BG, ISP_AWB_STAT_BG_MAX_VALUE_MASK,
+ ISP_AWB_STAT_BG_MAX_VALUE(awb_cfg->bg_max));
+
+ c3_isp_update_bits(isp, ISP_AWB_STAT_RG_HL, ISP_AWB_STAT_RG_HL_LOW_VALUE_MASK,
+ ISP_AWB_STAT_RG_HL_LOW_VALUE(awb_cfg->rg_low));
+ c3_isp_update_bits(isp, ISP_AWB_STAT_RG_HL, ISP_AWB_STAT_RG_HL_HIGH_VALUE_MASK,
+ ISP_AWB_STAT_RG_HL_HIGH_VALUE(awb_cfg->rg_high));
+
+ c3_isp_update_bits(isp, ISP_AWB_STAT_BG_HL, ISP_AWB_STAT_BG_HL_LOW_VALUE_MASK,
+ ISP_AWB_STAT_BG_HL_LOW_VALUE(awb_cfg->bg_low));
+ c3_isp_update_bits(isp, ISP_AWB_STAT_BG_HL, ISP_AWB_STAT_BG_HL_HIGH_VALUE_MASK,
+ ISP_AWB_STAT_BG_HL_HIGH_VALUE(awb_cfg->bg_high));
+
+ c3_isp_params_cfg_awb_weight(isp, awb_cfg);
+ c3_isp_params_cfg_awb_cood(isp, awb_cfg);
+
+ c3_isp_update_bits(isp, ISP_TOP_3A_STAT_CRTL,
+ ISP_TOP_3A_STAT_CRTL_AWB_STAT_EN_MASK,
+ ISP_TOP_3A_STAT_CRTL_AWB_STAT_EN);
+}
+
+static void c3_isp_params_cfg_ae_weight(struct c3_isp_device *isp,
+ struct c3_isp_params_ae_config *ae_cfg)
+{
+ unsigned int zones_num;
+ unsigned int base;
+ unsigned int data;
+ unsigned int i;
+
+ /* Set the weight address to 0 position */
+ c3_isp_write(isp, ISP_AE_BLK_WT_ADDR, 0);
+
+ zones_num = ae_cfg->horiz_zones_num * ae_cfg->vert_zones_num;
+
+ /* Need to write 8 weights at once */
+ for (i = 0; i < zones_num / 8; i++) {
+ base = i * 8;
+ data = ISP_AE_BLK_WT_DATA_IDX_DATA(0, ae_cfg->zone_weight[base + 0]) |
+ ISP_AE_BLK_WT_DATA_IDX_DATA(1, ae_cfg->zone_weight[base + 1]) |
+ ISP_AE_BLK_WT_DATA_IDX_DATA(2, ae_cfg->zone_weight[base + 2]) |
+ ISP_AE_BLK_WT_DATA_IDX_DATA(3, ae_cfg->zone_weight[base + 3]) |
+ ISP_AE_BLK_WT_DATA_IDX_DATA(4, ae_cfg->zone_weight[base + 4]) |
+ ISP_AE_BLK_WT_DATA_IDX_DATA(5, ae_cfg->zone_weight[base + 5]) |
+ ISP_AE_BLK_WT_DATA_IDX_DATA(6, ae_cfg->zone_weight[base + 6]) |
+ ISP_AE_BLK_WT_DATA_IDX_DATA(7, ae_cfg->zone_weight[base + 7]);
+ c3_isp_write(isp, ISP_AE_BLK_WT_DATA, data);
+ }
+
+ /* Write the last weights data */
+ if (zones_num % 8) {
+ data = 0;
+ base = i * 8;
+
+ for (i = 0; i < zones_num % 8; i++)
+ data |= ISP_AE_BLK_WT_DATA_IDX_DATA(i, ae_cfg->zone_weight[base + i]);
+
+ c3_isp_write(isp, ISP_AE_BLK_WT_DATA, data);
+ }
+}
+
+static void c3_isp_params_cfg_ae_cood(struct c3_isp_device *isp,
+ struct c3_isp_params_ae_config *ae_cfg)
+{
+ unsigned int max_point_num;
+
+ /* The number of points is one more than the number of edges */
+ max_point_num = max(ae_cfg->horiz_zones_num, ae_cfg->vert_zones_num) + 1;
+
+ /* Set the index address to 0 position */
+ c3_isp_write(isp, ISP_AE_IDX_ADDR, 0);
+
+ for (unsigned int i = 0; i < max_point_num; i++) {
+ c3_isp_write(isp, ISP_AE_IDX_DATA,
+ ISP_AE_IDX_DATA_HIDX_DATA(ae_cfg->horiz_cood[i]) |
+ ISP_AE_IDX_DATA_VIDX_DATA(ae_cfg->vert_cood[i]));
+ }
+}
+
+static void c3_isp_params_cfg_ae_config(struct c3_isp_device *isp,
+ union c3_isp_params_block block)
+{
+ struct c3_isp_params_ae_config *ae_cfg = block.ae_cfg;
+
+ if (block.header->flags & C3_ISP_PARAMS_BLOCK_FL_DISABLED) {
+ c3_isp_update_bits(isp, ISP_TOP_3A_STAT_CRTL,
+ ISP_TOP_3A_STAT_CRTL_AE_STAT_EN_MASK,
+ ISP_TOP_3A_STAT_CRTL_AE_STAT_DIS);
+ return;
+ }
+
+ c3_isp_update_bits(isp, ISP_TOP_3A_STAT_CRTL,
+ ISP_TOP_3A_STAT_CRTL_AE_STAT_POINT_MASK,
+ ISP_TOP_3A_STAT_CRTL_AE_STAT_POINT(ae_cfg->tap_point));
+
+ if (ae_cfg->tap_point == C3_ISP_AE_STATS_TAP_GE)
+ c3_isp_update_bits(isp, ISP_AE_CTRL, ISP_AE_CTRL_INPUT_2LINE_MASK,
+ ISP_AE_CTRL_INPUT_2LINE_EN);
+ else
+ c3_isp_update_bits(isp, ISP_AE_CTRL, ISP_AE_CTRL_INPUT_2LINE_MASK,
+ ISP_AE_CTRL_INPUT_2LINE_DIS);
+
+ c3_isp_update_bits(isp, ISP_AE_HV_BLKNUM, ISP_AE_HV_BLKNUM_BLK_HORIZ_NUM_MASK,
+ ISP_AE_HV_BLKNUM_BLK_HORIZ_NUM(ae_cfg->horiz_zones_num));
+ c3_isp_update_bits(isp, ISP_AE_HV_BLKNUM, ISP_AE_HV_BLKNUM_BLK_VERT_NUM_MASK,
+ ISP_AE_HV_BLKNUM_BLK_VERT_NUM(ae_cfg->vert_zones_num));
+
+ c3_isp_params_cfg_ae_weight(isp, ae_cfg);
+ c3_isp_params_cfg_ae_cood(isp, ae_cfg);
+
+ c3_isp_update_bits(isp, ISP_TOP_3A_STAT_CRTL,
+ ISP_TOP_3A_STAT_CRTL_AE_STAT_EN_MASK,
+ ISP_TOP_3A_STAT_CRTL_AE_STAT_EN);
+}
+
+static void c3_isp_params_cfg_af_cood(struct c3_isp_device *isp,
+ struct c3_isp_params_af_config *af_cfg)
+{
+ unsigned int max_point_num;
+
+ /* The number of points is one more than the number of edges */
+ max_point_num = max(af_cfg->horiz_zones_num, af_cfg->vert_zones_num) + 1;
+
+ /* Set the index address to 0 position */
+ c3_isp_write(isp, ISP_AF_IDX_ADDR, 0);
+
+ for (unsigned int i = 0; i < max_point_num; i++) {
+ c3_isp_write(isp, ISP_AF_IDX_DATA,
+ ISP_AF_IDX_DATA_HIDX_DATA(af_cfg->horiz_cood[i]) |
+ ISP_AF_IDX_DATA_VIDX_DATA(af_cfg->vert_cood[i]));
+ }
+}
+
+static void c3_isp_params_cfg_af_config(struct c3_isp_device *isp,
+ union c3_isp_params_block block)
+{
+ struct c3_isp_params_af_config *af_cfg = block.af_cfg;
+
+ if (block.header->flags & C3_ISP_PARAMS_BLOCK_FL_DISABLED) {
+ c3_isp_update_bits(isp, ISP_TOP_3A_STAT_CRTL,
+ ISP_TOP_3A_STAT_CRTL_AF_STAT_EN_MASK,
+ ISP_TOP_3A_STAT_CRTL_AF_STAT_DIS);
+ return;
+ }
+
+ c3_isp_update_bits(isp, ISP_TOP_3A_STAT_CRTL,
+ ISP_TOP_3A_STAT_CRTL_AF_STAT_POINT_MASK,
+ ISP_TOP_3A_STAT_CRTL_AF_STAT_POINT(af_cfg->tap_point));
+
+ c3_isp_update_bits(isp, ISP_AF_HV_BLKNUM, ISP_AF_HV_BLKNUM_BLK_HORIZ_NUM_MASK,
+ ISP_AF_HV_BLKNUM_BLK_HORIZ_NUM(af_cfg->horiz_zones_num));
+ c3_isp_update_bits(isp, ISP_AF_HV_BLKNUM, ISP_AF_HV_BLKNUM_BLK_VERT_NUM_MASK,
+ ISP_AF_HV_BLKNUM_BLK_VERT_NUM(af_cfg->vert_zones_num));
+
+ c3_isp_params_cfg_af_cood(isp, af_cfg);
+
+ c3_isp_update_bits(isp, ISP_TOP_3A_STAT_CRTL,
+ ISP_TOP_3A_STAT_CRTL_AF_STAT_EN_MASK,
+ ISP_TOP_3A_STAT_CRTL_AF_STAT_EN);
+}
+
+static void c3_isp_params_cfg_pst_gamma(struct c3_isp_device *isp,
+ union c3_isp_params_block block)
+{
+ struct c3_isp_params_pst_gamma *gamma = block.pst_gamma;
+ unsigned int base;
+ unsigned int i;
+
+ if (block.header->flags & C3_ISP_PARAMS_BLOCK_FL_DISABLED) {
+ c3_isp_update_bits(isp, ISP_TOP_BED_CTRL,
+ ISP_TOP_BED_CTRL_PST_GAMMA_EN_MASK,
+ ISP_TOP_BED_CTRL_PST_GAMMA_DIS);
+ return;
+ }
+
+ /* R, G and B channels use the same gamma lut */
+ for (unsigned int j = 0; j < 3; j++) {
+ /* Set the channel lut address */
+ c3_isp_write(isp, ISP_PST_GAMMA_LUT_ADDR, ISP_PST_GAMMA_LUT_ADDR_IDX_ADDR(j));
+
+ /* Need to write 2 lut values at once */
+ for (i = 0; i < ARRAY_SIZE(gamma->lut) / 2; i++) {
+ base = i * 2;
+ c3_isp_write(isp, ISP_PST_GAMMA_LUT_DATA,
+ ISP_PST_GAMMA_LUT_DATA_DATA0(gamma->lut[base]) |
+ ISP_PST_GAMMA_LUT_DATA_DATA1(gamma->lut[base + 1]));
+ }
+
+ /* Write the last one */
+ if (ARRAY_SIZE(gamma->lut) % 2) {
+ base = i * 2;
+ c3_isp_write(isp, ISP_PST_GAMMA_LUT_DATA,
+ ISP_PST_GAMMA_LUT_DATA_DATA0(gamma->lut[base]));
+ }
+ }
+
+ c3_isp_update_bits(isp, ISP_TOP_BED_CTRL,
+ ISP_TOP_BED_CTRL_PST_GAMMA_EN_MASK,
+ ISP_TOP_BED_CTRL_PST_GAMMA_EN);
+}
+
+/* Configure 3 x 3 ccm matrix */
+static void c3_isp_params_cfg_ccm(struct c3_isp_device *isp,
+ union c3_isp_params_block block)
+{
+ struct c3_isp_params_ccm *ccm = block.ccm;
+
+ if (block.header->flags & C3_ISP_PARAMS_BLOCK_FL_DISABLED) {
+ c3_isp_update_bits(isp, ISP_TOP_BED_CTRL, ISP_TOP_BED_CTRL_CCM_EN_MASK,
+ ISP_TOP_BED_CTRL_CCM_DIS);
+ return;
+ }
+
+ c3_isp_update_bits(isp, ISP_CCM_MTX_00_01, ISP_CCM_MTX_00_01_MTX_00_MASK,
+ ISP_CCM_MTX_00_01_MTX_00(ccm->matrix[0][0]));
+ c3_isp_update_bits(isp, ISP_CCM_MTX_00_01, ISP_CCM_MTX_00_01_MTX_01_MASK,
+ ISP_CCM_MTX_00_01_MTX_01(ccm->matrix[0][1]));
+ c3_isp_update_bits(isp, ISP_CCM_MTX_02_03, ISP_CCM_MTX_02_03_MTX_02_MASK,
+ ISP_CCM_MTX_02_03_MTX_02(ccm->matrix[0][2]));
+
+ c3_isp_update_bits(isp, ISP_CCM_MTX_10_11, ISP_CCM_MTX_10_11_MTX_10_MASK,
+ ISP_CCM_MTX_10_11_MTX_10(ccm->matrix[1][0]));
+ c3_isp_update_bits(isp, ISP_CCM_MTX_10_11, ISP_CCM_MTX_10_11_MTX_11_MASK,
+ ISP_CCM_MTX_10_11_MTX_11(ccm->matrix[1][1]));
+ c3_isp_update_bits(isp, ISP_CCM_MTX_12_13, ISP_CCM_MTX_12_13_MTX_12_MASK,
+ ISP_CCM_MTX_12_13_MTX_12(ccm->matrix[1][2]));
+
+ c3_isp_update_bits(isp, ISP_CCM_MTX_20_21, ISP_CCM_MTX_20_21_MTX_20_MASK,
+ ISP_CCM_MTX_20_21_MTX_20(ccm->matrix[2][0]));
+ c3_isp_update_bits(isp, ISP_CCM_MTX_20_21, ISP_CCM_MTX_20_21_MTX_21_MASK,
+ ISP_CCM_MTX_20_21_MTX_21(ccm->matrix[2][1]));
+ c3_isp_update_bits(isp, ISP_CCM_MTX_22_23_RS, ISP_CCM_MTX_22_23_RS_MTX_22_MASK,
+ ISP_CCM_MTX_22_23_RS_MTX_22(ccm->matrix[2][2]));
+
+ c3_isp_update_bits(isp, ISP_TOP_BED_CTRL, ISP_TOP_BED_CTRL_CCM_EN_MASK,
+ ISP_TOP_BED_CTRL_CCM_EN);
+}
+
+/* Configure color space conversion matrix parameters */
+static void c3_isp_params_cfg_csc(struct c3_isp_device *isp,
+ union c3_isp_params_block block)
+{
+ struct c3_isp_params_csc *csc = block.csc;
+
+ if (block.header->flags & C3_ISP_PARAMS_BLOCK_FL_DISABLED) {
+ c3_isp_update_bits(isp, ISP_TOP_BED_CTRL, ISP_TOP_BED_CTRL_CM0_EN_MASK,
+ ISP_TOP_BED_CTRL_CM0_DIS);
+ return;
+ }
+
+ c3_isp_update_bits(isp, ISP_CM0_COEF00_01, ISP_CM0_COEF00_01_MTX_00_MASK,
+ ISP_CM0_COEF00_01_MTX_00(csc->matrix[0][0]));
+ c3_isp_update_bits(isp, ISP_CM0_COEF00_01, ISP_CM0_COEF00_01_MTX_01_MASK,
+ ISP_CM0_COEF00_01_MTX_01(csc->matrix[0][1]));
+ c3_isp_update_bits(isp, ISP_CM0_COEF02_10, ISP_CM0_COEF02_10_MTX_02_MASK,
+ ISP_CM0_COEF02_10_MTX_02(csc->matrix[0][2]));
+
+ c3_isp_update_bits(isp, ISP_CM0_COEF02_10, ISP_CM0_COEF02_10_MTX_10_MASK,
+ ISP_CM0_COEF02_10_MTX_10(csc->matrix[1][0]));
+ c3_isp_update_bits(isp, ISP_CM0_COEF11_12, ISP_CM0_COEF11_12_MTX_11_MASK,
+ ISP_CM0_COEF11_12_MTX_11(csc->matrix[1][1]));
+ c3_isp_update_bits(isp, ISP_CM0_COEF11_12, ISP_CM0_COEF11_12_MTX_12_MASK,
+ ISP_CM0_COEF11_12_MTX_12(csc->matrix[1][2]));
+
+ c3_isp_update_bits(isp, ISP_CM0_COEF20_21, ISP_CM0_COEF20_21_MTX_20_MASK,
+ ISP_CM0_COEF20_21_MTX_20(csc->matrix[2][0]));
+ c3_isp_update_bits(isp, ISP_CM0_COEF20_21, ISP_CM0_COEF20_21_MTX_21_MASK,
+ ISP_CM0_COEF20_21_MTX_21(csc->matrix[2][1]));
+ c3_isp_update_bits(isp, ISP_CM0_COEF22_OUP_OFST0, ISP_CM0_COEF22_OUP_OFST0_MTX_22_MASK,
+ ISP_CM0_COEF22_OUP_OFST0_MTX_22(csc->matrix[2][2]));
+
+ c3_isp_update_bits(isp, ISP_TOP_BED_CTRL, ISP_TOP_BED_CTRL_CM0_EN_MASK,
+ ISP_TOP_BED_CTRL_CM0_EN);
+}
+
+/* Set blc offset of each color channel */
+static void c3_isp_params_cfg_blc(struct c3_isp_device *isp,
+ union c3_isp_params_block block)
+{
+ struct c3_isp_params_blc *blc = block.blc;
+
+ if (block.header->flags & C3_ISP_PARAMS_BLOCK_FL_DISABLED) {
+ c3_isp_update_bits(isp, ISP_TOP_BEO_CTRL, ISP_TOP_BEO_CTRL_BLC_EN_MASK,
+ ISP_TOP_BEO_CTRL_BLC_DIS);
+ return;
+ }
+
+ c3_isp_write(isp, ISP_LSWB_BLC_OFST0,
+ ISP_LSWB_BLC_OFST0_R_OFST(blc->r_ofst) |
+ ISP_LSWB_BLC_OFST0_GR_OFST(blc->gr_ofst));
+ c3_isp_write(isp, ISP_LSWB_BLC_OFST1,
+ ISP_LSWB_BLC_OFST1_GB_OFST(blc->gb_ofst) |
+ ISP_LSWB_BLC_OFST1_B_OFST(blc->b_ofst));
+
+ c3_isp_update_bits(isp, ISP_TOP_BEO_CTRL, ISP_TOP_BEO_CTRL_BLC_EN_MASK,
+ ISP_TOP_BEO_CTRL_BLC_EN);
+}
+
+static const struct c3_isp_params_handler c3_isp_params_handlers[] = {
+ [C3_ISP_PARAMS_BLOCK_AWB_GAINS] = {
+ .size = sizeof(struct c3_isp_params_awb_gains),
+ .handler = c3_isp_params_cfg_awb_gains,
+ },
+ [C3_ISP_PARAMS_BLOCK_AWB_CONFIG] = {
+ .size = sizeof(struct c3_isp_params_awb_config),
+ .handler = c3_isp_params_cfg_awb_config,
+ },
+ [C3_ISP_PARAMS_BLOCK_AE_CONFIG] = {
+ .size = sizeof(struct c3_isp_params_ae_config),
+ .handler = c3_isp_params_cfg_ae_config,
+ },
+ [C3_ISP_PARAMS_BLOCK_AF_CONFIG] = {
+ .size = sizeof(struct c3_isp_params_af_config),
+ .handler = c3_isp_params_cfg_af_config,
+ },
+ [C3_ISP_PARAMS_BLOCK_PST_GAMMA] = {
+ .size = sizeof(struct c3_isp_params_pst_gamma),
+ .handler = c3_isp_params_cfg_pst_gamma,
+ },
+ [C3_ISP_PARAMS_BLOCK_CCM] = {
+ .size = sizeof(struct c3_isp_params_ccm),
+ .handler = c3_isp_params_cfg_ccm,
+ },
+ [C3_ISP_PARAMS_BLOCK_CSC] = {
+ .size = sizeof(struct c3_isp_params_csc),
+ .handler = c3_isp_params_cfg_csc,
+ },
+ [C3_ISP_PARAMS_BLOCK_BLC] = {
+ .size = sizeof(struct c3_isp_params_blc),
+ .handler = c3_isp_params_cfg_blc,
+ },
+};
+
+static enum vb2_buffer_state
+c3_isp_params_cfg_blocks(struct c3_isp_params *params)
+{
+ struct c3_isp_params_cfg *config = params->buff->cfg;
+ size_t block_offset = 0;
+ size_t max_offset = 0;
+
+ if (WARN_ON(!config))
+ return VB2_BUF_STATE_ERROR;
+
+ /* Ensure config->data has a full struct c3_isp_params_block_header */
+ max_offset = config->data_size - sizeof(struct c3_isp_params_block_header);
+
+ /* Walk the list of parameter blocks and process them */
+ while (block_offset <= max_offset) {
+ const struct c3_isp_params_handler *block_handler;
+ union c3_isp_params_block block;
+
+ block = (union c3_isp_params_block)
+ &config->data[block_offset];
+
+ block_handler = &c3_isp_params_handlers[block.header->type];
+ block_handler->handler(params->isp, block);
+
+ block_offset += block.header->size;
+ }
+
+ return VB2_BUF_STATE_DONE;
+}
+
+void c3_isp_params_pre_cfg(struct c3_isp_device *isp)
+{
+ struct c3_isp_params *params = &isp->params;
+
+ /* Disable some unused modules */
+ c3_isp_update_bits(isp, ISP_TOP_FEO_CTRL0, ISP_TOP_FEO_CTRL0_INPUT_FMT_EN_MASK,
+ ISP_TOP_FEO_CTRL0_INPUT_FMT_DIS);
+
+ c3_isp_update_bits(isp, ISP_TOP_FEO_CTRL1_0, ISP_TOP_FEO_CTRL1_0_DPC_EN_MASK,
+ ISP_TOP_FEO_CTRL1_0_DPC_DIS);
+ c3_isp_update_bits(isp, ISP_TOP_FEO_CTRL1_0, ISP_TOP_FEO_CTRL1_0_OG_EN_MASK,
+ ISP_TOP_FEO_CTRL1_0_OG_DIS);
+
+ c3_isp_update_bits(isp, ISP_TOP_FED_CTRL, ISP_TOP_FED_CTRL_PDPC_EN_MASK,
+ ISP_TOP_FED_CTRL_PDPC_DIS);
+ c3_isp_update_bits(isp, ISP_TOP_FED_CTRL, ISP_TOP_FED_CTRL_RAWCNR_EN_MASK,
+ ISP_TOP_FED_CTRL_RAWCNR_DIS);
+ c3_isp_update_bits(isp, ISP_TOP_FED_CTRL, ISP_TOP_FED_CTRL_SNR1_EN_MASK,
+ ISP_TOP_FED_CTRL_SNR1_DIS);
+ c3_isp_update_bits(isp, ISP_TOP_FED_CTRL, ISP_TOP_FED_CTRL_TNR0_EN_MASK,
+ ISP_TOP_FED_CTRL_TNR0_DIS);
+ c3_isp_update_bits(isp, ISP_TOP_FED_CTRL, ISP_TOP_FED_CTRL_CUBIC_CS_EN_MASK,
+ ISP_TOP_FED_CTRL_CUBIC_CS_DIS);
+ c3_isp_update_bits(isp, ISP_TOP_FED_CTRL, ISP_TOP_FED_CTRL_SQRT_EN_MASK,
+ ISP_TOP_FED_CTRL_SQRT_DIS);
+ c3_isp_update_bits(isp, ISP_TOP_FED_CTRL, ISP_TOP_FED_CTRL_DGAIN_EN_MASK,
+ ISP_TOP_FED_CTRL_DGAIN_DIS);
+
+ c3_isp_update_bits(isp, ISP_TOP_BEO_CTRL, ISP_TOP_BEO_CTRL_INV_DGAIN_EN_MASK,
+ ISP_TOP_BEO_CTRL_INV_DGAIN_DIS);
+ c3_isp_update_bits(isp, ISP_TOP_BEO_CTRL, ISP_TOP_BEO_CTRL_EOTF_EN_MASK,
+ ISP_TOP_BEO_CTRL_EOTF_DIS);
+
+ c3_isp_update_bits(isp, ISP_TOP_BED_CTRL, ISP_TOP_BED_CTRL_YHS_STAT_EN_MASK,
+ ISP_TOP_BED_CTRL_YHS_STAT_DIS);
+ c3_isp_update_bits(isp, ISP_TOP_BED_CTRL, ISP_TOP_BED_CTRL_GRPH_STAT_EN_MASK,
+ ISP_TOP_BED_CTRL_GRPH_STAT_DIS);
+ c3_isp_update_bits(isp, ISP_TOP_BED_CTRL, ISP_TOP_BED_CTRL_FMETER_EN_MASK,
+ ISP_TOP_BED_CTRL_FMETER_DIS);
+ c3_isp_update_bits(isp, ISP_TOP_BED_CTRL, ISP_TOP_BED_CTRL_BSC_EN_MASK,
+ ISP_TOP_BED_CTRL_BSC_DIS);
+ c3_isp_update_bits(isp, ISP_TOP_BED_CTRL, ISP_TOP_BED_CTRL_CNR2_EN_MASK,
+ ISP_TOP_BED_CTRL_CNR2_DIS);
+ c3_isp_update_bits(isp, ISP_TOP_BED_CTRL, ISP_TOP_BED_CTRL_CM1_EN_MASK,
+ ISP_TOP_BED_CTRL_CM1_DIS);
+ c3_isp_update_bits(isp, ISP_TOP_BED_CTRL, ISP_TOP_BED_CTRL_LUT3D_EN_MASK,
+ ISP_TOP_BED_CTRL_LUT3D_DIS);
+ c3_isp_update_bits(isp, ISP_TOP_BED_CTRL, ISP_TOP_BED_CTRL_PST_TNR_LITE_EN_MASK,
+ ISP_TOP_BED_CTRL_PST_TNR_LITE_DIS);
+ c3_isp_update_bits(isp, ISP_TOP_BED_CTRL, ISP_TOP_BED_CTRL_AMCM_EN_MASK,
+ ISP_TOP_BED_CTRL_AMCM_DIS);
+
+ /*
+ * Disable AE, AF and AWB stat module. Please configure the parameters
+ * in userspace algorithm if need to enable these switch.
+ */
+ c3_isp_update_bits(isp, ISP_TOP_3A_STAT_CRTL, ISP_TOP_3A_STAT_CRTL_AE_STAT_EN_MASK,
+ ISP_TOP_3A_STAT_CRTL_AE_STAT_DIS);
+ c3_isp_update_bits(isp, ISP_TOP_3A_STAT_CRTL, ISP_TOP_3A_STAT_CRTL_AWB_STAT_EN_MASK,
+ ISP_TOP_3A_STAT_CRTL_AWB_STAT_DIS);
+ c3_isp_update_bits(isp, ISP_TOP_3A_STAT_CRTL, ISP_TOP_3A_STAT_CRTL_AF_STAT_EN_MASK,
+ ISP_TOP_3A_STAT_CRTL_AF_STAT_DIS);
+
+ c3_isp_write(isp, ISP_LSWB_WB_LIMIT0,
+ ISP_LSWB_WB_LIMIT0_WB_LIMIT_R_MAX | ISP_LSWB_WB_LIMIT0_WB_LIMIT_GR_MAX);
+ c3_isp_write(isp, ISP_LSWB_WB_LIMIT1,
+ ISP_LSWB_WB_LIMIT1_WB_LIMIT_GB_MAX | ISP_LSWB_WB_LIMIT1_WB_LIMIT_B_MAX);
+
+ guard(spinlock_irqsave)(¶ms->buff_lock);
+
+ /* Only use the first buffer to initialize ISP */
+ params->buff = list_first_entry_or_null(¶ms->pending,
+ struct c3_isp_params_buffer, list);
+ if (params->buff)
+ c3_isp_params_cfg_blocks(params);
+}
+
+/* V4L2 video operations */
+
+static int c3_isp_params_querycap(struct file *file, void *fh,
+ struct v4l2_capability *cap)
+{
+ strscpy(cap->driver, C3_ISP_DRIVER_NAME, sizeof(cap->driver));
+ strscpy(cap->card, "AML C3 ISP", sizeof(cap->card));
+
+ return 0;
+}
+
+static int c3_isp_params_enum_fmt(struct file *file, void *fh,
+ struct v4l2_fmtdesc *f)
+{
+ if (f->index)
+ return -EINVAL;
+
+ f->pixelformat = V4L2_META_FMT_C3ISP_PARAMS;
+
+ return 0;
+}
+
+static int c3_isp_params_g_fmt(struct file *file, void *fh,
+ struct v4l2_format *f)
+{
+ struct c3_isp_params *params = video_drvdata(file);
+
+ f->fmt.meta = params->vfmt.fmt.meta;
+
+ return 0;
+}
+
+static const struct v4l2_ioctl_ops isp_params_v4l2_ioctl_ops = {
+ .vidioc_querycap = c3_isp_params_querycap,
+ .vidioc_enum_fmt_meta_out = c3_isp_params_enum_fmt,
+ .vidioc_g_fmt_meta_out = c3_isp_params_g_fmt,
+ .vidioc_s_fmt_meta_out = c3_isp_params_g_fmt,
+ .vidioc_try_fmt_meta_out = c3_isp_params_g_fmt,
+ .vidioc_reqbufs = vb2_ioctl_reqbufs,
+ .vidioc_querybuf = vb2_ioctl_querybuf,
+ .vidioc_qbuf = vb2_ioctl_qbuf,
+ .vidioc_expbuf = vb2_ioctl_expbuf,
+ .vidioc_dqbuf = vb2_ioctl_dqbuf,
+ .vidioc_prepare_buf = vb2_ioctl_prepare_buf,
+ .vidioc_create_bufs = vb2_ioctl_create_bufs,
+ .vidioc_streamon = vb2_ioctl_streamon,
+ .vidioc_streamoff = vb2_ioctl_streamoff,
+};
+
+static const struct v4l2_file_operations isp_params_v4l2_fops = {
+ .open = v4l2_fh_open,
+ .release = vb2_fop_release,
+ .poll = vb2_fop_poll,
+ .unlocked_ioctl = video_ioctl2,
+ .mmap = vb2_fop_mmap,
+};
+
+static int c3_isp_params_vb2_queue_setup(struct vb2_queue *q,
+ unsigned int *num_buffers,
+ unsigned int *num_planes,
+ unsigned int sizes[],
+ struct device *alloc_devs[])
+{
+ if (*num_planes) {
+ if (*num_planes != 1)
+ return -EINVAL;
+
+ if (sizes[0] < sizeof(struct c3_isp_params_cfg))
+ return -EINVAL;
+ } else {
+ *num_planes = 1;
+ sizes[0] = sizeof(struct c3_isp_params_cfg);
+ }
+
+ return 0;
+}
+
+static void c3_isp_params_vb2_buf_queue(struct vb2_buffer *vb)
+{
+ struct vb2_v4l2_buffer *v4l2_buf = to_vb2_v4l2_buffer(vb);
+ struct c3_isp_params_buffer *buf = to_c3_isp_params_buffer(v4l2_buf);
+ struct c3_isp_params *params = vb2_get_drv_priv(vb->vb2_queue);
+
+ guard(spinlock_irqsave)(¶ms->buff_lock);
+
+ list_add_tail(&buf->list, ¶ms->pending);
+}
+
+static int c3_isp_params_vb2_buf_prepare(struct vb2_buffer *vb)
+{
+ struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
+ struct c3_isp_params_buffer *buf = to_c3_isp_params_buffer(vbuf);
+ struct c3_isp_params *params = vb2_get_drv_priv(vb->vb2_queue);
+ struct c3_isp_params_cfg *cfg = buf->cfg;
+ struct c3_isp_params_cfg *usr_cfg = vb2_plane_vaddr(vb, 0);
+ size_t payload_size = vb2_get_plane_payload(vb, 0);
+ size_t header_size = offsetof(struct c3_isp_params_cfg, data);
+ size_t block_offset = 0;
+ size_t cfg_size;
+
+ /* Payload size can't be greater than the destination buffer size */
+ if (payload_size > params->vfmt.fmt.meta.buffersize) {
+ dev_dbg(params->isp->dev,
+ "Payload size is too large: %zu\n", payload_size);
+ return -EINVAL;
+ }
+
+ /* Payload size can't be smaller than the header size */
+ if (payload_size < header_size) {
+ dev_dbg(params->isp->dev,
+ "Payload size is too small: %zu\n", payload_size);
+ return -EINVAL;
+ }
+
+ /*
+ * Use the internal scratch buffer to avoid userspace modifying
+ * the buffer content while the driver is processing it.
+ */
+ memcpy(cfg, usr_cfg, payload_size);
+
+ /* Only v0 is supported at the moment */
+ if (cfg->version != C3_ISP_PARAMS_BUFFER_V0) {
+ dev_dbg(params->isp->dev,
+ "Unsupported params buffer version: %u\n", cfg->version);
+ return -EINVAL;
+ }
+
+ /* Validate the size reported in the parameter buffer header */
+ cfg_size = header_size + cfg->data_size;
+ if (cfg_size != payload_size) {
+ dev_dbg(params->isp->dev,
+ "Data size %zu and payload size %zu are different\n",
+ cfg_size, payload_size);
+ return -EINVAL;
+ }
+
+ /* Walk the list of parameter blocks and validate them */
+ cfg_size = cfg->data_size;
+ while (cfg_size >= sizeof(struct c3_isp_params_block_header)) {
+ const struct c3_isp_params_block_header *block;
+ const struct c3_isp_params_handler *handler;
+
+ block = (struct c3_isp_params_block_header *)
+ &cfg->data[block_offset];
+
+ if (block->type >= ARRAY_SIZE(c3_isp_params_handlers)) {
+ dev_dbg(params->isp->dev,
+ "Invalid params block type\n");
+ return -EINVAL;
+ }
+
+ if (block->size > cfg_size) {
+ dev_dbg(params->isp->dev,
+ "Block size is greater than cfg size\n");
+ return -EINVAL;
+ }
+
+ handler = &c3_isp_params_handlers[block->type];
+ if (block->size != handler->size) {
+ dev_dbg(params->isp->dev,
+ "Invalid params block size\n");
+ return -EINVAL;
+ }
+
+ block_offset += block->size;
+ cfg_size -= block->size;
+ }
+
+ if (cfg_size) {
+ dev_dbg(params->isp->dev,
+ "Unexpected data after the params buffer end\n");
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int c3_isp_params_vb2_buf_init(struct vb2_buffer *vb)
+{
+ struct vb2_v4l2_buffer *v4l2_buf = to_vb2_v4l2_buffer(vb);
+ struct c3_isp_params *params = vb2_get_drv_priv(vb->vb2_queue);
+ struct c3_isp_params_buffer *buf = to_c3_isp_params_buffer(v4l2_buf);
+
+ buf->cfg = kvmalloc(params->vfmt.fmt.meta.buffersize, GFP_KERNEL);
+ if (!buf->cfg)
+ return -ENOMEM;
+
+ return 0;
+}
+
+static void c3_isp_params_vb2_buf_cleanup(struct vb2_buffer *vb)
+{
+ struct vb2_v4l2_buffer *v4l2_buf = to_vb2_v4l2_buffer(vb);
+ struct c3_isp_params_buffer *buf = to_c3_isp_params_buffer(v4l2_buf);
+
+ kvfree(buf->cfg);
+ buf->cfg = NULL;
+}
+
+static void c3_isp_params_vb2_stop_streaming(struct vb2_queue *q)
+{
+ struct c3_isp_params *params = vb2_get_drv_priv(q);
+ struct c3_isp_params_buffer *buff;
+
+ guard(spinlock_irqsave)(¶ms->buff_lock);
+
+ while (!list_empty(¶ms->pending)) {
+ buff = list_first_entry(¶ms->pending,
+ struct c3_isp_params_buffer, list);
+ list_del(&buff->list);
+ vb2_buffer_done(&buff->vb.vb2_buf, VB2_BUF_STATE_ERROR);
+ }
+}
+
+static const struct vb2_ops isp_params_vb2_ops = {
+ .queue_setup = c3_isp_params_vb2_queue_setup,
+ .buf_queue = c3_isp_params_vb2_buf_queue,
+ .buf_prepare = c3_isp_params_vb2_buf_prepare,
+ .buf_init = c3_isp_params_vb2_buf_init,
+ .buf_cleanup = c3_isp_params_vb2_buf_cleanup,
+ .wait_prepare = vb2_ops_wait_prepare,
+ .wait_finish = vb2_ops_wait_finish,
+ .stop_streaming = c3_isp_params_vb2_stop_streaming,
+};
+
+int c3_isp_params_register(struct c3_isp_device *isp)
+{
+ struct c3_isp_params *params = &isp->params;
+ struct video_device *vdev = ¶ms->vdev;
+ struct vb2_queue *vb2_q = ¶ms->vb2_q;
+ int ret;
+
+ memset(params, 0, sizeof(*params));
+ params->vfmt.fmt.meta.dataformat = V4L2_META_FMT_C3ISP_PARAMS;
+ params->vfmt.fmt.meta.buffersize = sizeof(struct c3_isp_params_cfg);
+ params->isp = isp;
+ INIT_LIST_HEAD(¶ms->pending);
+ spin_lock_init(¶ms->buff_lock);
+ mutex_init(¶ms->lock);
+
+ snprintf(vdev->name, sizeof(vdev->name), "c3-isp-params");
+ vdev->fops = &isp_params_v4l2_fops;
+ vdev->ioctl_ops = &isp_params_v4l2_ioctl_ops;
+ vdev->v4l2_dev = &isp->v4l2_dev;
+ vdev->lock = ¶ms->lock;
+ vdev->minor = -1;
+ vdev->queue = vb2_q;
+ vdev->release = video_device_release_empty;
+ vdev->device_caps = V4L2_CAP_META_OUTPUT | V4L2_CAP_STREAMING;
+ vdev->vfl_dir = VFL_DIR_TX;
+ video_set_drvdata(vdev, params);
+
+ vb2_q->drv_priv = params;
+ vb2_q->mem_ops = &vb2_vmalloc_memops;
+ vb2_q->ops = &isp_params_vb2_ops;
+ vb2_q->type = V4L2_BUF_TYPE_META_OUTPUT;
+ vb2_q->io_modes = VB2_DMABUF | VB2_MMAP;
+ vb2_q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
+ vb2_q->buf_struct_size = sizeof(struct c3_isp_buffer);
+ vb2_q->dev = isp->dev;
+ vb2_q->lock = ¶ms->lock;
+ vb2_q->min_queued_buffers = 1;
+
+ ret = vb2_queue_init(vb2_q);
+ if (ret)
+ goto err_detroy;
+
+ params->pad.flags = MEDIA_PAD_FL_SOURCE;
+ ret = media_entity_pads_init(&vdev->entity, 1, ¶ms->pad);
+ if (ret)
+ goto err_queue_release;
+
+ ret = video_register_device(vdev, VFL_TYPE_VIDEO, -1);
+ if (ret < 0) {
+ dev_err(isp->dev,
+ "Failed to register %s: %d\n", vdev->name, ret);
+ goto err_entity_cleanup;
+ }
+
+ return 0;
+
+err_entity_cleanup:
+ media_entity_cleanup(&vdev->entity);
+err_queue_release:
+ vb2_queue_release(vb2_q);
+err_detroy:
+ mutex_destroy(¶ms->lock);
+ return ret;
+}
+
+void c3_isp_params_unregister(struct c3_isp_device *isp)
+{
+ struct c3_isp_params *params = &isp->params;
+
+ vb2_queue_release(¶ms->vb2_q);
+ media_entity_cleanup(¶ms->vdev.entity);
+ video_unregister_device(¶ms->vdev);
+ mutex_destroy(¶ms->lock);
+}
+
+void c3_isp_params_isr(struct c3_isp_device *isp)
+{
+ struct c3_isp_params *params = &isp->params;
+ enum vb2_buffer_state state;
+
+ guard(spinlock_irqsave)(¶ms->buff_lock);
+
+ params->buff = list_first_entry_or_null(¶ms->pending,
+ struct c3_isp_params_buffer, list);
+ if (!params->buff)
+ return;
+
+ list_del(¶ms->buff->list);
+
+ state = c3_isp_params_cfg_blocks(params);
+
+ params->buff->vb.sequence = params->isp->frm_sequence;
+ params->buff->vb.vb2_buf.timestamp = ktime_get();
+ params->buff->vb.field = V4L2_FIELD_NONE;
+ vb2_buffer_done(¶ms->buff->vb.vb2_buf, state);
+}
diff --git a/drivers/media/platform/amlogic/c3/isp/c3-isp-regs.h b/drivers/media/platform/amlogic/c3/isp/c3-isp-regs.h
new file mode 100644
index 000000000000..c4d3b8c96479
--- /dev/null
+++ b/drivers/media/platform/amlogic/c3/isp/c3-isp-regs.h
@@ -0,0 +1,599 @@
+/* SPDX-License-Identifier: (GPL-2.0-only OR MIT) */
+/*
+ * Copyright (C) 2024 Amlogic, Inc. All rights reserved
+ */
+
+#ifndef __C3_ISP_REGS_H__
+#define __C3_ISP_REGS_H__
+
+#define ISP_TOP_INPUT_SIZE 0x0000
+#define ISP_TOP_INPUT_SIZE_VERT_SIZE_MASK GENMASK(15, 0)
+#define ISP_TOP_INPUT_SIZE_VERT_SIZE(x) ((x) << 0)
+#define ISP_TOP_INPUT_SIZE_HORIZ_SIZE_MASK GENMASK(31, 16)
+#define ISP_TOP_INPUT_SIZE_HORIZ_SIZE(x) ((x) << 16)
+
+#define ISP_TOP_FRM_SIZE 0x0004
+#define ISP_TOP_FRM_SIZE_CORE_VERT_SIZE_MASK GENMASK(15, 0)
+#define ISP_TOP_FRM_SIZE_CORE_VERT_SIZE(x) ((x) << 0)
+#define ISP_TOP_FRM_SIZE_CORE_HORIZ_SIZE_MASK GENMASK(31, 16)
+#define ISP_TOP_FRM_SIZE_CORE_HORIZ_SIZE(x) ((x) << 16)
+
+#define ISP_TOP_HOLD_SIZE 0x0008
+#define ISP_TOP_HOLD_SIZE_CORE_HORIZ_SIZE_MASK GENMASK(31, 16)
+#define ISP_TOP_HOLD_SIZE_CORE_HORIZ_SIZE(x) ((x) << 16)
+
+#define ISP_TOP_PATH_EN 0x0010
+#define ISP_TOP_PATH_EN_DISP0_EN_MASK BIT(0)
+#define ISP_TOP_PATH_EN_DISP0_EN BIT(0)
+#define ISP_TOP_PATH_EN_DISP0_DIS (0 << 0)
+#define ISP_TOP_PATH_EN_DISP1_EN_MASK BIT(1)
+#define ISP_TOP_PATH_EN_DISP1_EN BIT(1)
+#define ISP_TOP_PATH_EN_DISP1_DIS (0 << 1)
+#define ISP_TOP_PATH_EN_DISP2_EN_MASK BIT(2)
+#define ISP_TOP_PATH_EN_DISP2_EN BIT(2)
+#define ISP_TOP_PATH_EN_DISP2_DIS (0 << 2)
+#define ISP_TOP_PATH_EN_WRMIF0_EN_MASK BIT(8)
+#define ISP_TOP_PATH_EN_WRMIF0_EN BIT(8)
+#define ISP_TOP_PATH_EN_WRMIF0_DIS (0 << 8)
+#define ISP_TOP_PATH_EN_WRMIF1_EN_MASK BIT(9)
+#define ISP_TOP_PATH_EN_WRMIF1_EN BIT(9)
+#define ISP_TOP_PATH_EN_WRMIF1_DIS (0 << 9)
+#define ISP_TOP_PATH_EN_WRMIF2_EN_MASK BIT(10)
+#define ISP_TOP_PATH_EN_WRMIF2_EN BIT(10)
+#define ISP_TOP_PATH_EN_WRMIF2_DIS (0 << 10)
+
+#define ISP_TOP_PATH_SEL 0x0014
+#define ISP_TOP_PATH_SEL_CORE_MASK GENMASK(18, 16)
+#define ISP_TOP_PATH_SEL_CORE_CORE_DIS (0 << 16)
+#define ISP_TOP_PATH_SEL_CORE_MIPI_CORE BIT(16)
+
+#define ISP_TOP_IRQ_EN 0x0080
+#define ISP_TOP_IRQ_EN_FRAME_END_MASK BIT(0)
+#define ISP_TOP_IRQ_EN_FRAME_END_EN BIT(0)
+#define ISP_TOP_IRQ_EN_FRAME_END_DIS (0 << 0)
+#define ISP_TOP_IRQ_EN_3A_DMA_ERR_MASK BIT(5)
+#define ISP_TOP_IRQ_EN_3A_DMA_ERR_EN BIT(5)
+#define ISP_TOP_IRQ_EN_3A_DMA_ERR_DIS (0 << 5)
+
+#define ISP_TOP_IRQ_CLR 0x0084
+#define ISP_TOP_RO_IRQ_STAT 0x01c4
+
+#define ISP_TOP_MODE_CTRL 0x0400
+#define ISP_TOP_FEO_CTRL0 0x040c
+#define ISP_TOP_FEO_CTRL0_INPUT_FMT_EN_MASK BIT(8)
+#define ISP_TOP_FEO_CTRL0_INPUT_FMT_DIS (0 << 8)
+#define ISP_TOP_FEO_CTRL0_INPUT_FMT_EN BIT(8)
+
+#define ISP_TOP_FEO_CTRL1_0 0x0410
+#define ISP_TOP_FEO_CTRL1_0_DPC_EN_MASK BIT(3)
+#define ISP_TOP_FEO_CTRL1_0_DPC_DIS (0 << 3)
+#define ISP_TOP_FEO_CTRL1_0_DPC_EN BIT(3)
+#define ISP_TOP_FEO_CTRL1_0_OG_EN_MASK BIT(5)
+#define ISP_TOP_FEO_CTRL1_0_OG_DIS (0 << 5)
+#define ISP_TOP_FEO_CTRL1_0_OG_EN BIT(5)
+
+#define ISP_TOP_FED_CTRL 0x0418
+#define ISP_TOP_FED_CTRL_PDPC_EN_MASK BIT(1)
+#define ISP_TOP_FED_CTRL_PDPC_DIS (0 << 1)
+#define ISP_TOP_FED_CTRL_PDPC_EN BIT(1)
+#define ISP_TOP_FED_CTRL_RAWCNR_EN_MASK GENMASK(6, 5)
+#define ISP_TOP_FED_CTRL_RAWCNR_DIS (0 << 5)
+#define ISP_TOP_FED_CTRL_RAWCNR_EN BIT(5)
+#define ISP_TOP_FED_CTRL_SNR1_EN_MASK BIT(9)
+#define ISP_TOP_FED_CTRL_SNR1_DIS (0 << 9)
+#define ISP_TOP_FED_CTRL_SNR1_EN BIT(9)
+#define ISP_TOP_FED_CTRL_TNR0_EN_MASK BIT(11)
+#define ISP_TOP_FED_CTRL_TNR0_DIS (0 << 11)
+#define ISP_TOP_FED_CTRL_TNR0_EN BIT(11)
+#define ISP_TOP_FED_CTRL_CUBIC_CS_EN_MASK BIT(12)
+#define ISP_TOP_FED_CTRL_CUBIC_CS_DIS (0 << 12)
+#define ISP_TOP_FED_CTRL_CUBIC_CS_EN BIT(12)
+#define ISP_TOP_FED_CTRL_SQRT_EN_MASK BIT(14)
+#define ISP_TOP_FED_CTRL_SQRT_DIS (0 << 14)
+#define ISP_TOP_FED_CTRL_SQRT_EN BIT(14)
+#define ISP_TOP_FED_CTRL_DGAIN_EN_MASK BIT(16)
+#define ISP_TOP_FED_CTRL_DGAIN_DIS (0 << 16)
+#define ISP_TOP_FED_CTRL_DGAIN_EN BIT(16)
+
+#define ISP_TOP_BEO_CTRL 0x041c
+#define ISP_TOP_BEO_CTRL_WB_EN_MASK BIT(6)
+#define ISP_TOP_BEO_CTRL_WB_DIS (0 << 6)
+#define ISP_TOP_BEO_CTRL_WB_EN BIT(6)
+#define ISP_TOP_BEO_CTRL_BLC_EN_MASK BIT(7)
+#define ISP_TOP_BEO_CTRL_BLC_DIS (0 << 7)
+#define ISP_TOP_BEO_CTRL_BLC_EN BIT(7)
+#define ISP_TOP_BEO_CTRL_INV_DGAIN_EN_MASK BIT(8)
+#define ISP_TOP_BEO_CTRL_INV_DGAIN_DIS (0 << 8)
+#define ISP_TOP_BEO_CTRL_INV_DGAIN_EN BIT(8)
+#define ISP_TOP_BEO_CTRL_EOTF_EN_MASK BIT(9)
+#define ISP_TOP_BEO_CTRL_EOTF_DIS (0 << 9)
+#define ISP_TOP_BEO_CTRL_EOTF_EN BIT(9)
+
+#define ISP_TOP_BED_CTRL 0x0420
+#define ISP_TOP_BED_CTRL_YHS_STAT_EN_MASK GENMASK(1, 0)
+#define ISP_TOP_BED_CTRL_YHS_STAT_DIS (0 << 0)
+#define ISP_TOP_BED_CTRL_YHS_STAT_EN BIT(0)
+#define ISP_TOP_BED_CTRL_GRPH_STAT_EN_MASK BIT(2)
+#define ISP_TOP_BED_CTRL_GRPH_STAT_DIS (0 << 2)
+#define ISP_TOP_BED_CTRL_GRPH_STAT_EN BIT(2)
+#define ISP_TOP_BED_CTRL_FMETER_EN_MASK BIT(3)
+#define ISP_TOP_BED_CTRL_FMETER_DIS (0 << 3)
+#define ISP_TOP_BED_CTRL_FMETER_EN BIT(3)
+#define ISP_TOP_BED_CTRL_BSC_EN_MASK BIT(10)
+#define ISP_TOP_BED_CTRL_BSC_DIS (0 << 10)
+#define ISP_TOP_BED_CTRL_BSC_EN BIT(10)
+#define ISP_TOP_BED_CTRL_CNR2_EN_MASK BIT(11)
+#define ISP_TOP_BED_CTRL_CNR2_DIS (0 << 11)
+#define ISP_TOP_BED_CTRL_CNR2_EN BIT(11)
+#define ISP_TOP_BED_CTRL_CM1_EN_MASK BIT(13)
+#define ISP_TOP_BED_CTRL_CM1_DIS (0 << 13)
+#define ISP_TOP_BED_CTRL_CM1_EN BIT(13)
+#define ISP_TOP_BED_CTRL_CM0_EN_MASK BIT(14)
+#define ISP_TOP_BED_CTRL_CM0_DIS (0 << 14)
+#define ISP_TOP_BED_CTRL_CM0_EN BIT(14)
+#define ISP_TOP_BED_CTRL_PST_GAMMA_EN_MASK BIT(16)
+#define ISP_TOP_BED_CTRL_PST_GAMMA_DIS (0 << 16)
+#define ISP_TOP_BED_CTRL_PST_GAMMA_EN BIT(16)
+#define ISP_TOP_BED_CTRL_LUT3D_EN_MASK BIT(17)
+#define ISP_TOP_BED_CTRL_LUT3D_DIS (0 << 17)
+#define ISP_TOP_BED_CTRL_LUT3D_EN BIT(17)
+#define ISP_TOP_BED_CTRL_CCM_EN_MASK BIT(18)
+#define ISP_TOP_BED_CTRL_CCM_DIS (0 << 18)
+#define ISP_TOP_BED_CTRL_CCM_EN BIT(18)
+#define ISP_TOP_BED_CTRL_PST_TNR_LITE_EN_MASK BIT(21)
+#define ISP_TOP_BED_CTRL_PST_TNR_LITE_DIS (0 << 21)
+#define ISP_TOP_BED_CTRL_PST_TNR_LITE_EN BIT(21)
+#define ISP_TOP_BED_CTRL_AMCM_EN_MASK BIT(25)
+#define ISP_TOP_BED_CTRL_AMCM_DIS (0 << 25)
+#define ISP_TOP_BED_CTRL_AMCM_EN BIT(25)
+
+#define ISP_TOP_3A_STAT_CRTL 0x0424
+#define ISP_TOP_3A_STAT_CRTL_AE_STAT_EN_MASK BIT(0)
+#define ISP_TOP_3A_STAT_CRTL_AE_STAT_DIS (0 << 0)
+#define ISP_TOP_3A_STAT_CRTL_AE_STAT_EN BIT(0)
+#define ISP_TOP_3A_STAT_CRTL_AWB_STAT_EN_MASK BIT(1)
+#define ISP_TOP_3A_STAT_CRTL_AWB_STAT_DIS (0 << 1)
+#define ISP_TOP_3A_STAT_CRTL_AWB_STAT_EN BIT(1)
+#define ISP_TOP_3A_STAT_CRTL_AF_STAT_EN_MASK BIT(2)
+#define ISP_TOP_3A_STAT_CRTL_AF_STAT_DIS (0 << 2)
+#define ISP_TOP_3A_STAT_CRTL_AF_STAT_EN BIT(2)
+#define ISP_TOP_3A_STAT_CRTL_AWB_STAT_POINT_MASK GENMASK(6, 4)
+#define ISP_TOP_3A_STAT_CRTL_AWB_STAT_POINT(x) ((x) << 4)
+#define ISP_TOP_3A_STAT_CRTL_AE_STAT_POINT_MASK GENMASK(9, 8)
+#define ISP_TOP_3A_STAT_CRTL_AE_STAT_POINT(x) ((x) << 8)
+#define ISP_TOP_3A_STAT_CRTL_AF_STAT_POINT_MASK GENMASK(13, 12)
+#define ISP_TOP_3A_STAT_CRTL_AF_STAT_POINT(x) ((x) << 12)
+
+#define ISP_LSWB_BLC_OFST0 0x4028
+#define ISP_LSWB_BLC_OFST0_R_OFST_MASK GENMASK(15, 0)
+#define ISP_LSWB_BLC_OFST0_R_OFST(x) ((x) << 0)
+#define ISP_LSWB_BLC_OFST0_GR_OFST_MASK GENMASK(31, 16)
+#define ISP_LSWB_BLC_OFST0_GR_OFST(x) ((x) << 16)
+
+#define ISP_LSWB_BLC_OFST1 0x402c
+#define ISP_LSWB_BLC_OFST1_GB_OFST_MASK GENMASK(15, 0)
+#define ISP_LSWB_BLC_OFST1_GB_OFST(x) ((x) << 0)
+#define ISP_LSWB_BLC_OFST1_B_OFST_MASK GENMASK(31, 16)
+#define ISP_LSWB_BLC_OFST1_B_OFST(x) ((x) << 16)
+
+#define ISP_LSWB_BLC_PHSOFST 0x4034
+#define ISP_LSWB_BLC_PHSOFST_VERT_OFST_MASK GENMASK(1, 0)
+#define ISP_LSWB_BLC_PHSOFST_VERT_OFST(x) ((x) << 0)
+#define ISP_LSWB_BLC_PHSOFST_HORIZ_OFST_MASK GENMASK(3, 2)
+#define ISP_LSWB_BLC_PHSOFST_HORIZ_OFST(x) ((x) << 2)
+
+#define ISP_LSWB_WB_GAIN0 0x4038
+#define ISP_LSWB_WB_GAIN0_R_GAIN_MASK GENMASK(11, 0)
+#define ISP_LSWB_WB_GAIN0_R_GAIN(x) ((x) << 0)
+#define ISP_LSWB_WB_GAIN0_GR_GAIN_MASK GENMASK(27, 16)
+#define ISP_LSWB_WB_GAIN0_GR_GAIN(x) ((x) << 16)
+
+#define ISP_LSWB_WB_GAIN1 0x403c
+#define ISP_LSWB_WB_GAIN1_GB_GAIN_MASK GENMASK(11, 0)
+#define ISP_LSWB_WB_GAIN1_GB_GAIN(x) ((x) << 0)
+#define ISP_LSWB_WB_GAIN1_B_GAIN_MASK GENMASK(27, 16)
+#define ISP_LSWB_WB_GAIN1_B_GAIN(x) ((x) << 16)
+
+#define ISP_LSWB_WB_GAIN2 0x4040
+#define ISP_LSWB_WB_GAIN2_IR_GAIN_MASK GENMASK(11, 0)
+#define ISP_LSWB_WB_GAIN2_IR_GAIN(x) ((x) << 0)
+
+#define ISP_LSWB_WB_LIMIT0 0x4044
+#define ISP_LSWB_WB_LIMIT0_WB_LIMIT_R_MASK GENMASK(15, 0)
+#define ISP_LSWB_WB_LIMIT0_WB_LIMIT_R(x) ((x) << 0)
+#define ISP_LSWB_WB_LIMIT0_WB_LIMIT_R_MAX (0x8fff << 0)
+#define ISP_LSWB_WB_LIMIT0_WB_LIMIT_GR_MASK GENMASK(31, 16)
+#define ISP_LSWB_WB_LIMIT0_WB_LIMIT_GR(x) ((x) << 16)
+#define ISP_LSWB_WB_LIMIT0_WB_LIMIT_GR_MAX (0x8fff << 16)
+
+#define ISP_LSWB_WB_LIMIT1 0x4048
+#define ISP_LSWB_WB_LIMIT1_WB_LIMIT_GB_MASK GENMASK(15, 0)
+#define ISP_LSWB_WB_LIMIT1_WB_LIMIT_GB(x) ((x) << 0)
+#define ISP_LSWB_WB_LIMIT1_WB_LIMIT_GB_MAX (0x8fff << 0)
+#define ISP_LSWB_WB_LIMIT1_WB_LIMIT_B_MASK GENMASK(31, 16)
+#define ISP_LSWB_WB_LIMIT1_WB_LIMIT_B(x) ((x) << 16)
+#define ISP_LSWB_WB_LIMIT1_WB_LIMIT_B_MAX (0x8fff << 16)
+
+#define ISP_LSWB_WB_PHSOFST 0x4050
+#define ISP_LSWB_WB_PHSOFST_VERT_OFST_MASK GENMASK(1, 0)
+#define ISP_LSWB_WB_PHSOFST_VERT_OFST(x) ((x) << 0)
+#define ISP_LSWB_WB_PHSOFST_HORIZ_OFST_MASK GENMASK(3, 2)
+#define ISP_LSWB_WB_PHSOFST_HORIZ_OFST(x) ((x) << 2)
+
+#define ISP_LSWB_LNS_PHSOFST 0x4054
+#define ISP_LSWB_LNS_PHSOFST_VERT_OFST_MASK GENMASK(1, 0)
+#define ISP_LSWB_LNS_PHSOFST_VERT_OFST(x) ((x) << 0)
+#define ISP_LSWB_LNS_PHSOFST_HORIZ_OFST_MASK GENMASK(3, 2)
+#define ISP_LSWB_LNS_PHSOFST_HORIZ_OFST(x) ((x) << 2)
+
+#define ISP_DMS_COMMON_PARAM0 0x5000
+#define ISP_DMS_COMMON_PARAM0_VERT_PHS_OFST_MASK GENMASK(1, 0)
+#define ISP_DMS_COMMON_PARAM0_VERT_PHS_OFST(x) ((x) << 0)
+#define ISP_DMS_COMMON_PARAM0_HORIZ_PHS_OFST_MASK GENMASK(3, 2)
+#define ISP_DMS_COMMON_PARAM0_HORIZ_PHS_OFST(x) ((x) << 2)
+
+#define ISP_CM0_COEF00_01 0x6048
+#define ISP_CM0_COEF00_01_MTX_00_MASK GENMASK(12, 0)
+#define ISP_CM0_COEF00_01_MTX_00(x) ((x) << 0)
+#define ISP_CM0_COEF00_01_MTX_01_MASK GENMASK(28, 16)
+#define ISP_CM0_COEF00_01_MTX_01(x) ((x) << 16)
+
+#define ISP_CM0_COEF02_10 0x604c
+#define ISP_CM0_COEF02_10_MTX_02_MASK GENMASK(12, 0)
+#define ISP_CM0_COEF02_10_MTX_02(x) ((x) << 0)
+#define ISP_CM0_COEF02_10_MTX_10_MASK GENMASK(28, 16)
+#define ISP_CM0_COEF02_10_MTX_10(x) ((x) << 16)
+
+#define ISP_CM0_COEF11_12 0x6050
+#define ISP_CM0_COEF11_12_MTX_11_MASK GENMASK(12, 0)
+#define ISP_CM0_COEF11_12_MTX_11(x) ((x) << 0)
+#define ISP_CM0_COEF11_12_MTX_12_MASK GENMASK(28, 16)
+#define ISP_CM0_COEF11_12_MTX_12(x) ((x) << 16)
+
+#define ISP_CM0_COEF20_21 0x6054
+#define ISP_CM0_COEF20_21_MTX_20_MASK GENMASK(12, 0)
+#define ISP_CM0_COEF20_21_MTX_20(x) ((x) << 0)
+#define ISP_CM0_COEF20_21_MTX_21_MASK GENMASK(28, 16)
+#define ISP_CM0_COEF20_21_MTX_21(x) ((x) << 16)
+
+#define ISP_CM0_COEF22_OUP_OFST0 0x6058
+#define ISP_CM0_COEF22_OUP_OFST0_MTX_22_MASK GENMASK(12, 0)
+#define ISP_CM0_COEF22_OUP_OFST0_MTX_22(x) ((x) << 0)
+
+#define ISP_CCM_MTX_00_01 0x6098
+#define ISP_CCM_MTX_00_01_MTX_00_MASK GENMASK(12, 0)
+#define ISP_CCM_MTX_00_01_MTX_00(x) ((x) << 0)
+#define ISP_CCM_MTX_00_01_MTX_01_MASK GENMASK(28, 16)
+#define ISP_CCM_MTX_00_01_MTX_01(x) ((x) << 16)
+
+#define ISP_CCM_MTX_02_03 0x609c
+#define ISP_CCM_MTX_02_03_MTX_02_MASK GENMASK(12, 0)
+#define ISP_CCM_MTX_02_03_MTX_02(x) ((x) << 0)
+
+#define ISP_CCM_MTX_10_11 0x60A0
+#define ISP_CCM_MTX_10_11_MTX_10_MASK GENMASK(12, 0)
+#define ISP_CCM_MTX_10_11_MTX_10(x) ((x) << 0)
+#define ISP_CCM_MTX_10_11_MTX_11_MASK GENMASK(28, 16)
+#define ISP_CCM_MTX_10_11_MTX_11(x) ((x) << 16)
+
+#define ISP_CCM_MTX_12_13 0x60A4
+#define ISP_CCM_MTX_12_13_MTX_12_MASK GENMASK(12, 0)
+#define ISP_CCM_MTX_12_13_MTX_12(x) ((x) << 0)
+
+#define ISP_CCM_MTX_20_21 0x60A8
+#define ISP_CCM_MTX_20_21_MTX_20_MASK GENMASK(12, 0)
+#define ISP_CCM_MTX_20_21_MTX_20(x) ((x) << 0)
+#define ISP_CCM_MTX_20_21_MTX_21_MASK GENMASK(28, 16)
+#define ISP_CCM_MTX_20_21_MTX_21(x) ((x) << 16)
+
+#define ISP_CCM_MTX_22_23_RS 0x60Ac
+#define ISP_CCM_MTX_22_23_RS_MTX_22_MASK GENMASK(12, 0)
+#define ISP_CCM_MTX_22_23_RS_MTX_22(x) ((x) << 0)
+
+#define ISP_PST_GAMMA_LUT_ADDR 0x60cc
+#define ISP_PST_GAMMA_LUT_ADDR_IDX_ADDR(x) ((x) << 7)
+
+#define ISP_PST_GAMMA_LUT_DATA 0x60d0
+#define ISP_PST_GAMMA_LUT_DATA_DATA0(x) (((x) & GENMASK(15, 0)) << 0)
+#define ISP_PST_GAMMA_LUT_DATA_DATA1(x) (((x) & GENMASK(15, 0)) << 16)
+
+#define DISP0_TOP_TOP_CTRL 0x8000
+#define DISP0_TOP_TOP_CTRL_CROP2_EN_MASK BIT(5)
+#define DISP0_TOP_TOP_CTRL_CROP2_EN BIT(5)
+#define DISP0_TOP_TOP_CTRL_CROP2_DIS (0 << 5)
+
+#define DISP0_TOP_CRP2_START 0x8004
+#define DISP0_TOP_CRP2_START_V_START_MASK GENMASK(15, 0)
+#define DISP0_TOP_CRP2_START_V_START(x) ((x) << 0)
+#define DISP0_TOP_CRP2_START_H_START_MASK GENMASK(31, 16)
+#define DISP0_TOP_CRP2_START_H_START(x) ((x) << 16)
+
+#define DISP0_TOP_CRP2_SIZE 0x8008
+#define DISP0_TOP_CRP2_SIZE_V_SIZE_MASK GENMASK(15, 0)
+#define DISP0_TOP_CRP2_SIZE_V_SIZE(x) ((x) << 0)
+#define DISP0_TOP_CRP2_SIZE_H_SIZE_MASK GENMASK(31, 16)
+#define DISP0_TOP_CRP2_SIZE_H_SIZE(x) ((x) << 16)
+
+#define DISP0_TOP_OUT_SIZE 0x800c
+#define DISP0_TOP_OUT_SIZE_SCALER_OUT_HEIGHT_MASK GENMASK(12, 0)
+#define DISP0_TOP_OUT_SIZE_SCALER_OUT_HEIGHT(x) ((x) << 0)
+#define DISP0_TOP_OUT_SIZE_SCALER_OUT_WIDTH_MASK GENMASK(28, 16)
+#define DISP0_TOP_OUT_SIZE_SCALER_OUT_WIDTH(x) ((x) << 16)
+
+#define ISP_DISP0_TOP_IN_SIZE 0x804c
+#define ISP_DISP0_TOP_IN_SIZE_VSIZE_MASK GENMASK(12, 0)
+#define ISP_DISP0_TOP_IN_SIZE_VSIZE(x) ((x) << 0)
+#define ISP_DISP0_TOP_IN_SIZE_HSIZE_MASK GENMASK(28, 16)
+#define ISP_DISP0_TOP_IN_SIZE_HSIZE(x) ((x) << 16)
+
+#define DISP0_PPS_SCALE_EN 0x8200
+#define DISP0_PPS_SCALE_EN_VSC_TAP_NUM_MASK GENMASK(3, 0)
+#define DISP0_PPS_SCALE_EN_VSC_TAP_NUM(x) ((x) << 0)
+#define DISP0_PPS_SCALE_EN_HSC_TAP_NUM_MASK GENMASK(7, 4)
+#define DISP0_PPS_SCALE_EN_HSC_TAP_NUM(x) ((x) << 4)
+#define DISP0_PPS_SCALE_EN_PREVSC_FLT_NUM_MASK GENMASK(11, 8)
+#define DISP0_PPS_SCALE_EN_PREVSC_FLT_NUM(x) ((x) << 8)
+#define DISP0_PPS_SCALE_EN_PREHSC_FLT_NUM_MASK GENMASK(15, 12)
+#define DISP0_PPS_SCALE_EN_PREHSC_FLT_NUM(x) ((x) << 12)
+#define DISP0_PPS_SCALE_EN_PREVSC_RATE_MASK GENMASK(17, 16)
+#define DISP0_PPS_SCALE_EN_PREVSC_RATE(x) ((x) << 16)
+#define DISP0_PPS_SCALE_EN_PREHSC_RATE_MASK GENMASK(19, 18)
+#define DISP0_PPS_SCALE_EN_PREHSC_RATE(x) ((x) << 18)
+#define DISP0_PPS_SCALE_EN_HSC_EN_MASK BIT(20)
+#define DISP0_PPS_SCALE_EN_HSC_EN(x) ((x) << 20)
+#define DISP0_PPS_SCALE_EN_HSC_DIS (0 << 20)
+#define DISP0_PPS_SCALE_EN_VSC_EN_MASK BIT(21)
+#define DISP0_PPS_SCALE_EN_VSC_EN(x) ((x) << 21)
+#define DISP0_PPS_SCALE_EN_VSC_DIS (0 << 21)
+#define DISP0_PPS_SCALE_EN_PREVSC_EN_MASK BIT(22)
+#define DISP0_PPS_SCALE_EN_PREVSC_EN(x) ((x) << 22)
+#define DISP0_PPS_SCALE_EN_PREVSC_DIS (0 << 22)
+#define DISP0_PPS_SCALE_EN_PREHSC_EN_MASK BIT(23)
+#define DISP0_PPS_SCALE_EN_PREHSC_EN(x) ((x) << 23)
+#define DISP0_PPS_SCALE_EN_PREHSC_DIS (0 << 23)
+#define DISP0_PPS_SCALE_EN_HSC_NOR_RS_BITS_MASK GENMASK(27, 24)
+#define DISP0_PPS_SCALE_EN_HSC_NOR_RS_BITS(x) ((x) << 24)
+#define DISP0_PPS_SCALE_EN_VSC_NOR_RS_BITS_MASK GENMASK(31, 28)
+#define DISP0_PPS_SCALE_EN_VSC_NOR_RS_BITS(x) ((x) << 28)
+
+#define DISP0_PPS_VSC_START_PHASE_STEP 0x8224
+#define DISP0_PPS_VSC_START_PHASE_STEP_VERT_FRAC_MASK GENMASK(23, 0)
+#define DISP0_PPS_VSC_START_PHASE_STEP_VERT_FRAC(x) ((x) << 0)
+#define DISP0_PPS_VSC_START_PHASE_STEP_VERT_INTE_MASK GENMASK(27, 24)
+#define DISP0_PPS_VSC_START_PHASE_STEP_VERT_INTE(x) ((x) << 24)
+
+#define DISP0_PPS_HSC_START_PHASE_STEP 0x8230
+#define DISP0_PPS_HSC_START_PHASE_STEP_HORIZ_FRAC_MASK GENMASK(23, 0)
+#define DISP0_PPS_HSC_START_PHASE_STEP_HORIZ_FRAC(x) ((x) << 0)
+#define DISP0_PPS_HSC_START_PHASE_STEP_HORIZ_INTE_MASK GENMASK(27, 24)
+#define DISP0_PPS_HSC_START_PHASE_STEP_HORIZ_INTE(x) ((x) << 24)
+
+#define DISP0_PPS_444TO422 0x823c
+#define DISP0_PPS_444TO422_EN_MASK BIT(0)
+#define DISP0_PPS_444TO422_EN(x) ((x) << 0)
+
+#define ISP_SCALE0_COEF_IDX_LUMA 0x8240
+#define ISP_SCALE0_COEF_IDX_LUMA_COEF_S11_MODE_MASK BIT(9)
+#define ISP_SCALE0_COEF_IDX_LUMA_COEF_S11_MODE_EN BIT(9)
+#define ISP_SCALE0_COEF_IDX_LUMA_COEF_S11_MODE_DIS (0 << 9)
+#define ISP_SCALE0_COEF_IDX_LUMA_CTYPE_MASK GENMASK(12, 10)
+#define ISP_SCALE0_COEF_IDX_LUMA_CTYPE(x) ((x) << 10)
+
+#define ISP_SCALE0_COEF_LUMA 0x8244
+#define ISP_SCALE0_COEF_LUMA_DATA1(x) (((x) & GENMASK(10, 0)) << 0)
+#define ISP_SCALE0_COEF_LUMA_DATA0(x) (((x) & GENMASK(10, 0)) << 16)
+
+#define ISP_SCALE0_COEF_IDX_CHRO 0x8248
+#define ISP_SCALE0_COEF_IDX_CHRO_COEF_S11_MODE_MASK BIT(9)
+#define ISP_SCALE0_COEF_IDX_CHRO_COEF_S11_MODE_EN BIT(9)
+#define ISP_SCALE0_COEF_IDX_CHRO_COEF_S11_MODE_DIS (0 << 9)
+#define ISP_SCALE0_COEF_IDX_CHRO_CTYPE_MASK GENMASK(12, 10)
+#define ISP_SCALE0_COEF_IDX_CHRO_CTYPE(x) ((x) << 10)
+
+#define ISP_SCALE0_COEF_CHRO 0x824c
+#define ISP_SCALE0_COEF_CHRO_DATA1(x) (((x) & GENMASK(10, 0)) << 0)
+#define ISP_SCALE0_COEF_CHRO_DATA0(x) (((x) & GENMASK(10, 0)) << 16)
+
+#define ISP_AF_CTRL 0xa044
+#define ISP_AF_CTRL_VERT_OFST_MASK GENMASK(15, 14)
+#define ISP_AF_CTRL_VERT_OFST(x) ((x) << 14)
+#define ISP_AF_CTRL_HORIZ_OFST_MASK GENMASK(17, 16)
+#define ISP_AF_CTRL_HORIZ_OFST(x) ((x) << 16)
+
+#define ISP_AF_HV_SIZE 0xa04c
+#define ISP_AF_HV_SIZE_GLB_WIN_YSIZE_MASK GENMASK(15, 0)
+#define ISP_AF_HV_SIZE_GLB_WIN_YSIZE(x) ((x) << 0)
+#define ISP_AF_HV_SIZE_GLB_WIN_XSIZE_MASK GENMASK(31, 16)
+#define ISP_AF_HV_SIZE_GLB_WIN_XSIZE(x) ((x) << 16)
+
+#define ISP_AF_HV_BLKNUM 0xa050
+#define ISP_AF_HV_BLKNUM_BLK_VERT_NUM_MASK GENMASK(5, 0)
+#define ISP_AF_HV_BLKNUM_BLK_VERT_NUM(x) ((x) << 0)
+#define ISP_AF_HV_BLKNUM_BLK_HORIZ_NUM_MASK GENMASK(21, 16)
+#define ISP_AF_HV_BLKNUM_BLK_HORIZ_NUM(x) ((x) << 16)
+
+#define ISP_AF_EN_CTRL 0xa054
+#define ISP_AF_EN_CTRL_STAT_SEL_MASK BIT(21)
+#define ISP_AF_EN_CTRL_STAT_SEL_OLD (0 << 21)
+#define ISP_AF_EN_CTRL_STAT_SEL_NEW BIT(21)
+
+#define ISP_AF_IDX_ADDR 0xa1c0
+#define ISP_AF_IDX_DATA 0xa1c4
+#define ISP_AF_IDX_DATA_VIDX_DATA(x) (((x) & GENMASK(15, 0)) << 0)
+#define ISP_AF_IDX_DATA_HIDX_DATA(x) (((x) & GENMASK(15, 0)) << 16)
+
+#define ISP_AE_CTRL 0xa448
+#define ISP_AE_CTRL_INPUT_2LINE_MASK BIT(7)
+#define ISP_AE_CTRL_INPUT_2LINE_EN BIT(7)
+#define ISP_AE_CTRL_INPUT_2LINE_DIS (0 << 7)
+#define ISP_AE_CTRL_LUMA_MODE_MASK GENMASK(9, 8)
+#define ISP_AE_CTRL_LUMA_MODE_CUR (0 << 8)
+#define ISP_AE_CTRL_LUMA_MODE_MAX BIT(8)
+#define ISP_AE_CTRL_LUMA_MODE_FILTER (2 << 8)
+#define ISP_AE_CTRL_VERT_OFST_MASK GENMASK(25, 24)
+#define ISP_AE_CTRL_VERT_OFST(x) ((x) << 24)
+#define ISP_AE_CTRL_HORIZ_OFST_MASK GENMASK(27, 26)
+#define ISP_AE_CTRL_HORIZ_OFST(x) ((x) << 26)
+
+#define ISP_AE_HV_SIZE 0xa464
+#define ISP_AE_HV_SIZE_VERT_SIZE_MASK GENMASK(15, 0)
+#define ISP_AE_HV_SIZE_VERT_SIZE(x) ((x) << 0)
+#define ISP_AE_HV_SIZE_HORIZ_SIZE_MASK GENMASK(31, 16)
+#define ISP_AE_HV_SIZE_HORIZ_SIZE(x) ((x) << 16)
+
+#define ISP_AE_HV_BLKNUM 0xa468
+#define ISP_AE_HV_BLKNUM_BLK_VERT_NUM_MASK GENMASK(6, 0)
+#define ISP_AE_HV_BLKNUM_BLK_VERT_NUM(x) ((x) << 0)
+#define ISP_AE_HV_BLKNUM_BLK_HORIZ_NUM_MASK GENMASK(22, 16)
+#define ISP_AE_HV_BLKNUM_BLK_HORIZ_NUM(x) ((x) << 16)
+
+#define ISP_AE_IDX_ADDR 0xa600
+#define ISP_AE_IDX_DATA 0xa604
+#define ISP_AE_IDX_DATA_VIDX_DATA(x) (((x) & GENMASK(15, 0)) << 0)
+#define ISP_AE_IDX_DATA_HIDX_DATA(x) (((x) & GENMASK(15, 0)) << 16)
+
+#define ISP_AE_BLK_WT_ADDR 0xa608
+#define ISP_AE_BLK_WT_DATA 0xa60c
+#define ISP_AE_BLK_WT_DATA_IDX_DATA(i, x) (((x) & GENMASK(3, 0)) << ((i) * 4))
+
+#define ISP_AWB_CTRL 0xa834
+#define ISP_AWB_CTRL_VERT_OFST_MASK GENMASK(1, 0)
+#define ISP_AWB_CTRL_VERT_OFST(x) ((x) << 0)
+#define ISP_AWB_CTRL_HORIZ_OFST_MASK GENMASK(3, 2)
+#define ISP_AWB_CTRL_HORIZ_OFST(x) ((x) << 2)
+
+#define ISP_AWB_HV_SIZE 0xa83c
+#define ISP_AWB_HV_SIZE_VERT_SIZE_MASK GENMASK(15, 0)
+#define ISP_AWB_HV_SIZE_VERT_SIZE(x) ((x) << 0)
+#define ISP_AWB_HV_SIZE_HORIZ_SIZE_MASK GENMASK(31, 16)
+#define ISP_AWB_HV_SIZE_HORIZ_SIZE(x) ((x) << 16)
+
+#define ISP_AWB_HV_BLKNUM 0xa840
+#define ISP_AWB_HV_BLKNUM_VERT_BLKS_NUM_MASK GENMASK(5, 0)
+#define ISP_AWB_HV_BLKNUM_VERT_BLKS_NUM(x) ((x) << 0)
+#define ISP_AWB_HV_BLKNUM_HORIZ_BLKS_NUM_MASK GENMASK(21, 16)
+#define ISP_AWB_HV_BLKNUM_HORIZ_BLKS_NUM(x) ((x) << 16)
+
+#define ISP_AWB_STAT_RG 0xa848
+#define ISP_AWB_STAT_RG_MIN_VALUE_MASK GENMASK(11, 0)
+#define ISP_AWB_STAT_RG_MIN_VALUE(x) ((x) << 0)
+#define ISP_AWB_STAT_RG_MAX_VALUE_MASK GENMASK(27, 16)
+#define ISP_AWB_STAT_RG_MAX_VALUE(x) ((x) << 16)
+
+#define ISP_AWB_STAT_BG 0xa84c
+#define ISP_AWB_STAT_BG_MIN_VALUE_MASK GENMASK(11, 0)
+#define ISP_AWB_STAT_BG_MIN_VALUE(x) ((x) << 0)
+#define ISP_AWB_STAT_BG_MAX_VALUE_MASK GENMASK(27, 16)
+#define ISP_AWB_STAT_BG_MAX_VALUE(x) ((x) << 16)
+
+#define ISP_AWB_STAT_RG_HL 0xa850
+#define ISP_AWB_STAT_RG_HL_LOW_VALUE_MASK GENMASK(11, 0)
+#define ISP_AWB_STAT_RG_HL_LOW_VALUE(x) ((x) << 0)
+#define ISP_AWB_STAT_RG_HL_HIGH_VALUE_MASK GENMASK(27, 16)
+#define ISP_AWB_STAT_RG_HL_HIGH_VALUE(x) ((x) << 16)
+
+#define ISP_AWB_STAT_BG_HL 0xa854
+#define ISP_AWB_STAT_BG_HL_LOW_VALUE_MASK GENMASK(11, 0)
+#define ISP_AWB_STAT_BG_HL_LOW_VALUE(x) ((x) << 0)
+#define ISP_AWB_STAT_BG_HL_HIGH_VALUE_MASK GENMASK(27, 16)
+#define ISP_AWB_STAT_BG_HL_HIGH_VALUE(x) ((x) << 16)
+
+#define ISP_AWB_STAT_CTRL2 0xa858
+#define ISP_AWB_STAT_CTRL2_SATUR_CTRL_MASK BIT(0)
+#define ISP_AWB_STAT_CTRL2_SATUR_CTRL(x) ((x) << 0)
+
+#define ISP_AWB_IDX_ADDR 0xaa00
+#define ISP_AWB_IDX_DATA 0xaa04
+#define ISP_AWB_IDX_DATA_VIDX_DATA(x) (((x) & GENMASK(15, 0)) << 0)
+#define ISP_AWB_IDX_DATA_HIDX_DATA(x) (((x) & GENMASK(15, 0)) << 16)
+
+#define ISP_AWB_BLK_WT_ADDR 0xaa08
+#define ISP_AWB_BLK_WT_DATA 0xaa0c
+#define ISP_AWB_BLK_WT_DATA_IDX_DATA(i, x) (((x) & GENMASK(3, 0)) << ((i) * 4))
+
+#define ISP_WRMIFX3_0_CH0_CTRL0 0xc400
+#define ISP_WRMIFX3_0_CH0_CTRL0_STRIDE_MASK GENMASK(28, 16)
+#define ISP_WRMIFX3_0_CH0_CTRL0_STRIDE(x) ((x) << 16)
+
+#define ISP_WRMIFX3_0_CH0_CTRL1 0xc404
+#define ISP_WRMIFX3_0_CH0_CTRL1_PIX_BITS_MODE_MASK GENMASK(30, 27)
+#define ISP_WRMIFX3_0_CH0_CTRL1_PIX_BITS_8BITS BIT(27)
+#define ISP_WRMIFX3_0_CH0_CTRL1_PIX_BITS_16BITS (2 << 27)
+
+#define ISP_WRMIFX3_0_CH1_CTRL0 0xc408
+#define ISP_WRMIFX3_0_CH1_CTRL0_STRIDE_MASK GENMASK(28, 16)
+#define ISP_WRMIFX3_0_CH1_CTRL0_STRIDE(x) ((x) << 16)
+
+#define ISP_WRMIFX3_0_CH1_CTRL1 0xc40c
+#define ISP_WRMIFX3_0_CH1_CTRL1_PIX_BITS_MODE_MASK GENMASK(30, 27)
+#define ISP_WRMIFX3_0_CH1_CTRL1_PIX_BITS_16BITS (2 << 27)
+#define ISP_WRMIFX3_0_CH1_CTRL1_PIX_BITS_32BITS (3 << 27)
+
+#define ISP_WRMIFX3_0_CH0_BADDR 0xc440
+#define ISP_WRMIFX3_0_CH0_BASE_ADDR(x) ((x) >> 4)
+
+#define ISP_WRMIFX3_0_CH1_BADDR 0xc444
+#define ISP_WRMIFX3_0_CH1_BASE_ADDR(x) ((x) >> 4)
+
+#define ISP_WRMIFX3_0_FMT_SIZE 0xc464
+#define ISP_WRMIFX3_0_FMT_SIZE_HSIZE_MASK GENMASK(15, 0)
+#define ISP_WRMIFX3_0_FMT_SIZE_HSIZE(x) ((x) << 0)
+#define ISP_WRMIFX3_0_FMT_SIZE_VSIZE_MASK GENMASK(31, 16)
+#define ISP_WRMIFX3_0_FMT_SIZE_VSIZE(x) ((x) << 16)
+
+#define ISP_WRMIFX3_0_FMT_CTRL 0xc468
+#define ISP_WRMIFX3_0_FMT_CTRL_MTX_IBITS_MASK GENMASK(1, 0)
+#define ISP_WRMIFX3_0_FMT_CTRL_MTX_IBITS_8BIT (0 << 0)
+#define ISP_WRMIFX3_0_FMT_CTRL_MTX_IBITS_10BIT BIT(0)
+#define ISP_WRMIFX3_0_FMT_CTRL_MTX_IBITS_12BIT (2 << 0)
+#define ISP_WRMIFX3_0_FMT_CTRL_MTX_IBITS_16BIT (3 << 0)
+#define ISP_WRMIFX3_0_FMT_CTRL_MTX_UV_SWAP_MASK BIT(2)
+#define ISP_WRMIFX3_0_FMT_CTRL_MTX_UV_SWAP_VU (0 << 2)
+#define ISP_WRMIFX3_0_FMT_CTRL_MTX_UV_SWAP_UV BIT(2)
+#define ISP_WRMIFX3_0_FMT_CTRL_MTX_PLANE_MASK GENMASK(5, 4)
+#define ISP_WRMIFX3_0_FMT_CTRL_MTX_PLANE_X1 (0 << 4)
+#define ISP_WRMIFX3_0_FMT_CTRL_MTX_PLANE_X2 BIT(4)
+#define ISP_WRMIFX3_0_FMT_CTRL_MODE_OUT_MASK GENMASK(18, 16)
+#define ISP_WRMIFX3_0_FMT_CTRL_MODE_OUT_YUV422 BIT(16)
+#define ISP_WRMIFX3_0_FMT_CTRL_MODE_OUT_YUV420 (2 << 16)
+#define ISP_WRMIFX3_0_FMT_CTRL_MODE_OUT_Y_ONLY (3 << 16)
+
+#define ISP_WRMIFX3_0_WIN_LUMA_H 0xc420
+#define ISP_WRMIFX3_0_WIN_LUMA_H_LUMA_HEND_MASK GENMASK(28, 16)
+#define ISP_WRMIFX3_0_WIN_LUMA_H_LUMA_HEND(x) (((x) - 1) << 16)
+
+#define ISP_WRMIFX3_0_WIN_LUMA_V 0xc424
+#define ISP_WRMIFX3_0_WIN_LUMA_V_LUMA_VEND_MASK GENMASK(28, 16)
+#define ISP_WRMIFX3_0_WIN_LUMA_V_LUMA_VEND(x) (((x) - 1) << 16)
+
+#define ISP_WRMIFX3_0_WIN_CHROM_H 0xc428
+#define ISP_WRMIFX3_0_WIN_CHROM_H_CHROM_HEND_MASK GENMASK(28, 16)
+#define ISP_WRMIFX3_0_WIN_CHROM_H_CHROM_HEND(x) (((x) - 1) << 16)
+
+#define ISP_WRMIFX3_0_WIN_CHROM_V 0xc42c
+#define ISP_WRMIFX3_0_WIN_CHROM_V_CHROM_VEND_MASK GENMASK(28, 16)
+#define ISP_WRMIFX3_0_WIN_CHROM_V_CHROM_VEND(x) (((x) - 1) << 16)
+
+#define VIU_DMAWR_BADDR0 0xc840
+#define VIU_DMAWR_BADDR0_AF_STATS_BASE_ADDR_MASK GENMASK(27, 0)
+#define VIU_DMAWR_BADDR0_AF_STATS_BASE_ADDR(x) ((x) >> 4)
+
+#define VIU_DMAWR_BADDR1 0xc844
+#define VIU_DMAWR_BADDR1_AWB_STATS_BASE_ADDR_MASK GENMASK(27, 0)
+#define VIU_DMAWR_BADDR1_AWB_STATS_BASE_ADDR(x) ((x) >> 4)
+
+#define VIU_DMAWR_BADDR2 0xc848
+#define VIU_DMAWR_BADDR2_AE_STATS_BASE_ADDR_MASK GENMASK(27, 0)
+#define VIU_DMAWR_BADDR2_AE_STATS_BASE_ADDR(x) ((x) >> 4)
+
+#define VIU_DMAWR_SIZE0 0xc854
+#define VIU_DMAWR_SIZE0_AF_STATS_SIZE_MASK GENMASK(15, 0)
+#define VIU_DMAWR_SIZE0_AF_STATS_SIZE(x) ((x) << 0)
+#define VIU_DMAWR_SIZE0_AWB_STATS_SIZE_MASK GENMASK(31, 16)
+#define VIU_DMAWR_SIZE0_AWB_STATS_SIZE(x) ((x) << 16)
+
+#define VIU_DMAWR_SIZE1 0xc858
+#define VIU_DMAWR_SIZE1_AE_STATS_SIZE_MASK GENMASK(15, 0)
+#define VIU_DMAWR_SIZE1_AE_STATS_SIZE(x) ((x) << 0)
+
+#endif
diff --git a/drivers/media/platform/amlogic/c3/isp/c3-isp-resizer.c b/drivers/media/platform/amlogic/c3/isp/c3-isp-resizer.c
new file mode 100644
index 000000000000..b179eff4cfd6
--- /dev/null
+++ b/drivers/media/platform/amlogic/c3/isp/c3-isp-resizer.c
@@ -0,0 +1,779 @@
+// SPDX-License-Identifier: (GPL-2.0-only OR MIT)
+/*
+ * Copyright (C) 2024 Amlogic, Inc. All rights reserved
+ */
+
+#include <linux/pm_runtime.h>
+
+#include "c3-isp-common.h"
+#include "c3-isp-regs.h"
+
+/* The normal parameters of pps module */
+static const int pps_lut_tap4_s11[C3_ISP_PPS_TAP4_S11_H_NUM][4] = {
+ { 0, 511, 0, 0}, { -5, 511, 5, 0}, {-10, 511, 11, 0},
+ {-14, 510, 17, -1}, {-18, 508, 23, -1}, {-22, 506, 29, -1},
+ {-25, 503, 36, -2}, {-28, 500, 43, -3}, {-32, 496, 51, -3},
+ {-34, 491, 59, -4}, {-37, 487, 67, -5}, {-39, 482, 75, -6},
+ {-41, 476, 84, -7}, {-42, 470, 92, -8}, {-44, 463, 102, -9},
+ {-45, 456, 111, -10}, {-45, 449, 120, -12}, {-47, 442, 130, -13},
+ {-47, 434, 140, -15}, {-47, 425, 151, -17}, {-47, 416, 161, -18},
+ {-47, 407, 172, -20}, {-47, 398, 182, -21}, {-47, 389, 193, -23},
+ {-46, 379, 204, -25}, {-45, 369, 215, -27}, {-44, 358, 226, -28},
+ {-43, 348, 237, -30}, {-43, 337, 249, -31}, {-41, 326, 260, -33},
+ {-40, 316, 271, -35}, {-39, 305, 282, -36}, {-37, 293, 293, -37}
+};
+
+static void c3_isp_rsz_pps_size(struct c3_isp_resizer *rsz,
+ struct c3_isp_pps_io_size *io_size)
+{
+ int thsize = io_size->thsize;
+ int tvsize = io_size->tvsize;
+ u32 ohsize = io_size->ohsize;
+ u32 ovsize = io_size->ovsize;
+ u32 ihsize = io_size->ihsize;
+ u32 max_hsize = io_size->max_hsize;
+ int step_h_integer, step_v_integer;
+ int step_h_fraction, step_v_fraction;
+ int yuv444to422_en;
+
+ /* Calculate the integer part of horizonal scaler step */
+ step_h_integer = thsize / ohsize;
+
+ /* Calculate the vertical part of horizonal scaler step */
+ step_v_integer = tvsize / ovsize;
+
+ /*
+ * Calculate the fraction part of horizonal scaler step.
+ * step_h_fraction = (source / dest) * 2^24,
+ * so step_h_fraction = ((source << 12) / dest) << 12.
+ */
+ step_h_fraction = ((thsize << 12) / ohsize) << 12;
+
+ /*
+ * Calculate the fraction part of vertical scaler step
+ * step_v_fraction = (source / dest) * 2^24,
+ * so step_v_fraction = ((source << 12) / dest) << 12.
+ */
+ step_v_fraction = ((tvsize << 12) / ovsize) << 12;
+
+ yuv444to422_en = ihsize > (max_hsize / 2) ? 1 : 0;
+
+ c3_isp_update_bits(rsz->isp, C3_ISP_DISP_REG(DISP0_PPS_444TO422, rsz->id),
+ DISP0_PPS_444TO422_EN_MASK, DISP0_PPS_444TO422_EN(yuv444to422_en));
+
+ c3_isp_update_bits(rsz->isp, C3_ISP_DISP_REG(DISP0_PPS_VSC_START_PHASE_STEP, rsz->id),
+ DISP0_PPS_VSC_START_PHASE_STEP_VERT_FRAC_MASK,
+ DISP0_PPS_VSC_START_PHASE_STEP_VERT_FRAC(step_v_fraction));
+ c3_isp_update_bits(rsz->isp, C3_ISP_DISP_REG(DISP0_PPS_VSC_START_PHASE_STEP, rsz->id),
+ DISP0_PPS_VSC_START_PHASE_STEP_VERT_INTE_MASK,
+ DISP0_PPS_VSC_START_PHASE_STEP_VERT_INTE(step_v_integer));
+
+ c3_isp_update_bits(rsz->isp, C3_ISP_DISP_REG(DISP0_PPS_HSC_START_PHASE_STEP, rsz->id),
+ DISP0_PPS_HSC_START_PHASE_STEP_HORIZ_FRAC_MASK,
+ DISP0_PPS_HSC_START_PHASE_STEP_HORIZ_FRAC(step_h_fraction));
+ c3_isp_update_bits(rsz->isp, C3_ISP_DISP_REG(DISP0_PPS_HSC_START_PHASE_STEP, rsz->id),
+ DISP0_PPS_HSC_START_PHASE_STEP_HORIZ_INTE_MASK,
+ DISP0_PPS_HSC_START_PHASE_STEP_HORIZ_INTE(step_h_integer));
+}
+
+static void c3_isp_rsz_pps_lut(struct c3_isp_resizer *rsz, u32 ctype)
+{
+ unsigned int i;
+
+ /*
+ * Default value of this register is 0,
+ * so only need to set SCALE_LUMA_COEF_S11_MODE and SCALE_LUMA_CTYPE.
+ * This register needs to be written in one time.
+ */
+ c3_isp_write(rsz->isp, C3_ISP_DISP_REG(ISP_SCALE0_COEF_IDX_LUMA, rsz->id),
+ ISP_SCALE0_COEF_IDX_LUMA_COEF_S11_MODE_EN |
+ ISP_SCALE0_COEF_IDX_LUMA_CTYPE(ctype));
+
+ for (i = 0; i < C3_ISP_PPS_TAP4_S11_H_NUM; i++) {
+ c3_isp_write(rsz->isp, C3_ISP_DISP_REG(ISP_SCALE0_COEF_LUMA, rsz->id),
+ ISP_SCALE0_COEF_LUMA_DATA0(pps_lut_tap4_s11[i][0]) |
+ ISP_SCALE0_COEF_LUMA_DATA1(pps_lut_tap4_s11[i][1]));
+ c3_isp_write(rsz->isp, C3_ISP_DISP_REG(ISP_SCALE0_COEF_LUMA, rsz->id),
+ ISP_SCALE0_COEF_LUMA_DATA0(pps_lut_tap4_s11[i][2]) |
+ ISP_SCALE0_COEF_LUMA_DATA1(pps_lut_tap4_s11[i][3]));
+ }
+
+ /*
+ * Default value of this register is 0,
+ * so only need to set SCALE_CHRO_COEF_S11_MODE and SCALE_CHRO_CTYPE.
+ * This register needs to be written in one time.
+ */
+ c3_isp_write(rsz->isp, C3_ISP_DISP_REG(ISP_SCALE0_COEF_IDX_CHRO, rsz->id),
+ ISP_SCALE0_COEF_IDX_CHRO_COEF_S11_MODE_EN |
+ ISP_SCALE0_COEF_IDX_CHRO_CTYPE(ctype));
+
+ for (i = 0; i < C3_ISP_PPS_TAP4_S11_H_NUM; i++) {
+ c3_isp_write(rsz->isp, C3_ISP_DISP_REG(ISP_SCALE0_COEF_CHRO, rsz->id),
+ ISP_SCALE0_COEF_CHRO_DATA0(pps_lut_tap4_s11[i][0]) |
+ ISP_SCALE0_COEF_CHRO_DATA1(pps_lut_tap4_s11[i][1]));
+ c3_isp_write(rsz->isp, C3_ISP_DISP_REG(ISP_SCALE0_COEF_CHRO, rsz->id),
+ ISP_SCALE0_COEF_CHRO_DATA0(pps_lut_tap4_s11[i][2]) |
+ ISP_SCALE0_COEF_CHRO_DATA1(pps_lut_tap4_s11[i][3]));
+ }
+}
+
+static void c3_isp_rsz_pps_disable(struct c3_isp_resizer *rsz)
+{
+ c3_isp_update_bits(rsz->isp, C3_ISP_DISP_REG(DISP0_PPS_SCALE_EN, rsz->id),
+ DISP0_PPS_SCALE_EN_HSC_EN_MASK, DISP0_PPS_SCALE_EN_HSC_DIS);
+ c3_isp_update_bits(rsz->isp, C3_ISP_DISP_REG(DISP0_PPS_SCALE_EN, rsz->id),
+ DISP0_PPS_SCALE_EN_VSC_EN_MASK, DISP0_PPS_SCALE_EN_VSC_DIS);
+ c3_isp_update_bits(rsz->isp, C3_ISP_DISP_REG(DISP0_PPS_SCALE_EN, rsz->id),
+ DISP0_PPS_SCALE_EN_PREVSC_EN_MASK, DISP0_PPS_SCALE_EN_PREVSC_DIS);
+ c3_isp_update_bits(rsz->isp, C3_ISP_DISP_REG(DISP0_PPS_SCALE_EN, rsz->id),
+ DISP0_PPS_SCALE_EN_PREHSC_EN_MASK, DISP0_PPS_SCALE_EN_PREHSC_DIS);
+}
+
+static int c3_isp_rsz_pps_enable(struct c3_isp_resizer *rsz,
+ struct v4l2_subdev_state *state)
+{
+ struct v4l2_rect *crop;
+ struct v4l2_rect *cmps;
+ int max_hsize;
+ int hsc_en, vsc_en;
+ int preh_en, prev_en;
+ u32 prehsc_rate;
+ u32 prevsc_flt_num;
+ int pre_vscale_max_hsize;
+ u32 ihsize_after_pre_hsc;
+ u32 ihsize_after_pre_hsc_alt;
+ u32 vsc_tap_num_alt;
+ u32 ihsize;
+ u32 ivsize;
+ struct c3_isp_pps_io_size io_size;
+
+ crop = v4l2_subdev_state_get_crop(state, C3_ISP_RESIZER_PAD_SINK);
+ cmps = v4l2_subdev_state_get_compose(state, C3_ISP_RESIZER_PAD_SINK);
+
+ ihsize = crop->width;
+ ivsize = crop->height;
+
+ hsc_en = (ihsize == cmps->width) ? C3_ISP_SCALE_DIS : C3_ISP_SCALE_EN;
+ vsc_en = (ivsize == cmps->height) ? C3_ISP_SCALE_DIS : C3_ISP_SCALE_EN;
+
+ /* Disable pps when there no need to use pps */
+ if (!hsc_en && !vsc_en) {
+ c3_isp_rsz_pps_disable(rsz);
+ return 0;
+ }
+
+ /*
+ * Pre-scale needs to be enable
+ * if the down scaling factor exceeds 4.
+ */
+ preh_en = (ihsize > cmps->width * 4) ? C3_ISP_SCALE_EN : C3_ISP_SCALE_DIS;
+ prev_en = (ivsize > cmps->height * 4) ? C3_ISP_SCALE_EN : C3_ISP_SCALE_DIS;
+
+ if (rsz->id == C3_ISP_RSZ_2) {
+ max_hsize = C3_ISP_MAX_WIDTH;
+ /*
+ * Set vertical tap number and
+ * the max hsize of pre-vertical scale.
+ */
+ prevsc_flt_num = 4;
+ pre_vscale_max_hsize = max_hsize / 2;
+ } else {
+ max_hsize = C3_ISP_DEFAULT_WIDTH;
+ preh_en = (ihsize > max_hsize) ? C3_ISP_SCALE_EN : C3_ISP_SCALE_DIS;
+ /*
+ * Set vertical tap number and
+ * the max hsize of pre-vertical scale.
+ */
+ if (ihsize > (max_hsize / 2) &&
+ ihsize <= max_hsize && prev_en) {
+ prevsc_flt_num = 2;
+ pre_vscale_max_hsize = max_hsize;
+ } else {
+ prevsc_flt_num = 4;
+ pre_vscale_max_hsize = max_hsize / 2;
+ }
+ }
+
+ /*
+ * Set pre-horizonal scale rate and
+ * the hsize of after pre-horizonal scale.
+ */
+ if (preh_en) {
+ prehsc_rate = 1;
+ ihsize_after_pre_hsc = DIV_ROUND_UP(ihsize, 2);
+ } else {
+ prehsc_rate = 0;
+ ihsize_after_pre_hsc = ihsize;
+ }
+
+ /* Change pre-horizonal scale rate */
+ if (prev_en && ihsize_after_pre_hsc >= pre_vscale_max_hsize)
+ prehsc_rate += 1;
+
+ /* Set the actual hsize of after pre-horizonal scale */
+ if (preh_en)
+ ihsize_after_pre_hsc_alt =
+ DIV_ROUND_UP(ihsize, 1 << prehsc_rate);
+ else
+ ihsize_after_pre_hsc_alt = ihsize;
+
+ /* Set vertical scaler bank length */
+ if (ihsize_after_pre_hsc_alt <= (max_hsize / 2))
+ vsc_tap_num_alt = 4;
+ else if (ihsize_after_pre_hsc_alt <= max_hsize)
+ vsc_tap_num_alt = prev_en ? 2 : 4;
+ else
+ vsc_tap_num_alt = prev_en ? 4 : 2;
+
+ io_size.thsize = ihsize_after_pre_hsc_alt;
+ io_size.tvsize = prev_en ? DIV_ROUND_UP(ivsize, 2) : ivsize;
+ io_size.ohsize = cmps->width;
+ io_size.ovsize = cmps->height;
+ io_size.ihsize = ihsize;
+ io_size.max_hsize = max_hsize;
+
+ c3_isp_rsz_pps_size(rsz, &io_size);
+ c3_isp_rsz_pps_lut(rsz, C3_ISP_PPS_LUT_CTYPE_0);
+ c3_isp_rsz_pps_lut(rsz, C3_ISP_PPS_LUT_CTYPE_2);
+
+ c3_isp_update_bits(rsz->isp, C3_ISP_DISP_REG(DISP0_PPS_SCALE_EN, rsz->id),
+ DISP0_PPS_SCALE_EN_VSC_TAP_NUM_MASK,
+ DISP0_PPS_SCALE_EN_VSC_TAP_NUM(vsc_tap_num_alt));
+ c3_isp_update_bits(rsz->isp, C3_ISP_DISP_REG(DISP0_PPS_SCALE_EN, rsz->id),
+ DISP0_PPS_SCALE_EN_PREVSC_FLT_NUM_MASK,
+ DISP0_PPS_SCALE_EN_PREVSC_FLT_NUM(prevsc_flt_num));
+
+ c3_isp_update_bits(rsz->isp, C3_ISP_DISP_REG(DISP0_PPS_SCALE_EN, rsz->id),
+ DISP0_PPS_SCALE_EN_PREVSC_RATE_MASK,
+ DISP0_PPS_SCALE_EN_PREVSC_RATE(prev_en));
+ c3_isp_update_bits(rsz->isp, C3_ISP_DISP_REG(DISP0_PPS_SCALE_EN, rsz->id),
+ DISP0_PPS_SCALE_EN_PREHSC_RATE_MASK,
+ DISP0_PPS_SCALE_EN_PREHSC_RATE(prehsc_rate));
+
+ c3_isp_update_bits(rsz->isp, C3_ISP_DISP_REG(DISP0_PPS_SCALE_EN, rsz->id),
+ DISP0_PPS_SCALE_EN_HSC_EN_MASK,
+ DISP0_PPS_SCALE_EN_HSC_EN(hsc_en));
+ c3_isp_update_bits(rsz->isp, C3_ISP_DISP_REG(DISP0_PPS_SCALE_EN, rsz->id),
+ DISP0_PPS_SCALE_EN_VSC_EN_MASK,
+ DISP0_PPS_SCALE_EN_VSC_EN(vsc_en));
+ c3_isp_update_bits(rsz->isp, C3_ISP_DISP_REG(DISP0_PPS_SCALE_EN, rsz->id),
+ DISP0_PPS_SCALE_EN_PREVSC_EN_MASK,
+ DISP0_PPS_SCALE_EN_PREVSC_EN(prev_en));
+ c3_isp_update_bits(rsz->isp, C3_ISP_DISP_REG(DISP0_PPS_SCALE_EN, rsz->id),
+ DISP0_PPS_SCALE_EN_PREHSC_EN_MASK,
+ DISP0_PPS_SCALE_EN_PREHSC_EN(preh_en));
+
+ c3_isp_update_bits(rsz->isp, C3_ISP_DISP_REG(DISP0_PPS_SCALE_EN, rsz->id),
+ DISP0_PPS_SCALE_EN_HSC_NOR_RS_BITS_MASK,
+ DISP0_PPS_SCALE_EN_HSC_NOR_RS_BITS(9));
+ c3_isp_update_bits(rsz->isp, C3_ISP_DISP_REG(DISP0_PPS_SCALE_EN, rsz->id),
+ DISP0_PPS_SCALE_EN_VSC_NOR_RS_BITS_MASK,
+ DISP0_PPS_SCALE_EN_VSC_NOR_RS_BITS(9));
+
+ return 0;
+}
+
+static void c3_isp_rsz_start(struct c3_isp_resizer *rsz,
+ struct v4l2_subdev_state *state)
+{
+ struct v4l2_mbus_framefmt *sink_fmt;
+ struct v4l2_mbus_framefmt *src_fmt;
+ struct v4l2_rect *sink_crop;
+
+ sink_fmt = v4l2_subdev_state_get_format(state, C3_ISP_RESIZER_PAD_SINK);
+ sink_crop = v4l2_subdev_state_get_crop(state, C3_ISP_RESIZER_PAD_SINK);
+ src_fmt = v4l2_subdev_state_get_format(state, C3_ISP_RESIZER_PAD_SOURCE);
+
+ c3_isp_write(rsz->isp, C3_ISP_DISP_REG(ISP_DISP0_TOP_IN_SIZE, rsz->id),
+ ISP_DISP0_TOP_IN_SIZE_HSIZE(sink_fmt->width) |
+ ISP_DISP0_TOP_IN_SIZE_VSIZE(sink_fmt->height));
+
+ c3_isp_write(rsz->isp, C3_ISP_DISP_REG(DISP0_TOP_CRP2_START, rsz->id),
+ DISP0_TOP_CRP2_START_V_START(sink_crop->top) |
+ DISP0_TOP_CRP2_START_H_START(sink_crop->left));
+
+ c3_isp_write(rsz->isp, C3_ISP_DISP_REG(DISP0_TOP_CRP2_SIZE, rsz->id),
+ DISP0_TOP_CRP2_SIZE_V_SIZE(sink_crop->height) |
+ DISP0_TOP_CRP2_SIZE_H_SIZE(sink_crop->width));
+
+ c3_isp_update_bits(rsz->isp, C3_ISP_DISP_REG(DISP0_TOP_TOP_CTRL, rsz->id),
+ DISP0_TOP_TOP_CTRL_CROP2_EN_MASK, DISP0_TOP_TOP_CTRL_CROP2_EN);
+
+ c3_isp_rsz_pps_enable(rsz, state);
+
+ c3_isp_update_bits(rsz->isp, C3_ISP_DISP_REG(DISP0_TOP_OUT_SIZE, rsz->id),
+ DISP0_TOP_OUT_SIZE_SCALER_OUT_HEIGHT_MASK,
+ DISP0_TOP_OUT_SIZE_SCALER_OUT_HEIGHT(src_fmt->height));
+ c3_isp_update_bits(rsz->isp, C3_ISP_DISP_REG(DISP0_TOP_OUT_SIZE, rsz->id),
+ DISP0_TOP_OUT_SIZE_SCALER_OUT_WIDTH_MASK,
+ DISP0_TOP_OUT_SIZE_SCALER_OUT_WIDTH(src_fmt->width));
+
+ if (rsz->id == C3_ISP_RSZ_0) {
+ c3_isp_update_bits(rsz->isp, ISP_TOP_PATH_EN, ISP_TOP_PATH_EN_DISP0_EN_MASK,
+ ISP_TOP_PATH_EN_DISP0_EN);
+ } else if (rsz->id == C3_ISP_RSZ_1) {
+ c3_isp_update_bits(rsz->isp, ISP_TOP_PATH_EN, ISP_TOP_PATH_EN_DISP1_EN_MASK,
+ ISP_TOP_PATH_EN_DISP1_EN);
+ } else if (rsz->id == C3_ISP_RSZ_2) {
+ c3_isp_update_bits(rsz->isp, ISP_TOP_PATH_EN, ISP_TOP_PATH_EN_DISP2_EN_MASK,
+ ISP_TOP_PATH_EN_DISP2_EN);
+ }
+}
+
+static void c3_isp_rsz_stop(struct c3_isp_resizer *rsz)
+{
+ if (rsz->id == C3_ISP_RSZ_0) {
+ c3_isp_update_bits(rsz->isp, ISP_TOP_PATH_EN, ISP_TOP_PATH_EN_DISP0_EN_MASK,
+ ISP_TOP_PATH_EN_DISP0_DIS);
+ } else if (rsz->id == C3_ISP_RSZ_1) {
+ c3_isp_update_bits(rsz->isp, ISP_TOP_PATH_EN, ISP_TOP_PATH_EN_DISP1_EN_MASK,
+ ISP_TOP_PATH_EN_DISP1_DIS);
+ } else if (rsz->id == C3_ISP_RSZ_2) {
+ c3_isp_update_bits(rsz->isp, ISP_TOP_PATH_EN, ISP_TOP_PATH_EN_DISP2_EN_MASK,
+ ISP_TOP_PATH_EN_DISP2_DIS);
+ }
+
+ c3_isp_update_bits(rsz->isp, C3_ISP_DISP_REG(DISP0_TOP_TOP_CTRL, rsz->id),
+ DISP0_TOP_TOP_CTRL_CROP2_EN_MASK, DISP0_TOP_TOP_CTRL_CROP2_DIS);
+
+ c3_isp_rsz_pps_disable(rsz);
+}
+
+static bool c3_isp_rsz_streams_ready(struct c3_isp_resizer *rsz)
+{
+ unsigned int n_links = 0;
+ struct media_link *link;
+
+ for_each_media_entity_data_link(&rsz->src_sd->entity, link) {
+ if (link->source->index == rsz->src_sd_pad &&
+ link->flags == MEDIA_LNK_FL_ENABLED)
+ n_links++;
+ }
+
+ return n_links == rsz->isp->pipe.start_count;
+}
+
+static int c3_isp_rsz_enable_streams(struct v4l2_subdev *sd,
+ struct v4l2_subdev_state *state,
+ u32 pad, u64 streams_mask)
+{
+ struct c3_isp_resizer *rsz = v4l2_get_subdevdata(sd);
+ u64 sink_streams;
+ int ret;
+
+ c3_isp_rsz_start(rsz, state);
+
+ if (!c3_isp_rsz_streams_ready(rsz))
+ return 0;
+
+ c3_isp_params_pre_cfg(rsz->isp);
+ c3_isp_stats_pre_cfg(rsz->isp);
+
+ sink_streams = v4l2_subdev_state_xlate_streams(state, pad,
+ C3_ISP_RESIZER_PAD_SINK,
+ &streams_mask);
+ ret = v4l2_subdev_enable_streams(rsz->src_sd,
+ rsz->src_sd_pad, sink_streams);
+ if (ret)
+ return ret;
+
+ return 0;
+}
+
+static int c3_isp_rsz_disable_streams(struct v4l2_subdev *sd,
+ struct v4l2_subdev_state *state,
+ u32 pad, u64 streams_mask)
+{
+ struct c3_isp_resizer *rsz = v4l2_get_subdevdata(sd);
+ u64 sink_streams;
+ int ret;
+
+ c3_isp_rsz_stop(rsz);
+
+ if (rsz->isp->pipe.start_count != 1)
+ return 0;
+
+ sink_streams = v4l2_subdev_state_xlate_streams(state, pad,
+ C3_ISP_RESIZER_PAD_SINK,
+ &streams_mask);
+ ret = v4l2_subdev_disable_streams(rsz->src_sd,
+ rsz->src_sd_pad, sink_streams);
+ if (ret)
+ return ret;
+
+ return 0;
+}
+
+static int c3_isp_rsz_cfg_routing(struct v4l2_subdev *sd,
+ struct v4l2_subdev_state *state,
+ struct v4l2_subdev_krouting *routing)
+{
+ static const struct v4l2_mbus_framefmt format = {
+ .width = C3_ISP_DEFAULT_WIDTH,
+ .height = C3_ISP_DEFAULT_HEIGHT,
+ .code = C3_ISP_RSZ_DEF_PAD_FMT,
+ .field = V4L2_FIELD_NONE,
+ .colorspace = V4L2_COLORSPACE_SRGB,
+ .ycbcr_enc = V4L2_YCBCR_ENC_601,
+ .quantization = V4L2_QUANTIZATION_LIM_RANGE,
+ .xfer_func = V4L2_XFER_FUNC_SRGB,
+ };
+ int ret;
+
+ ret = v4l2_subdev_routing_validate(sd, routing, V4L2_SUBDEV_ROUTING_ONLY_1_TO_1);
+ if (ret)
+ return ret;
+
+ ret = v4l2_subdev_set_routing_with_fmt(sd, state, routing, &format);
+ if (ret)
+ return ret;
+
+ return 0;
+}
+
+static int c3_isp_rsz_init_routing(struct v4l2_subdev *sd,
+ struct v4l2_subdev_state *state)
+{
+ struct v4l2_subdev_route routes;
+ struct v4l2_subdev_krouting routing;
+
+ routes.sink_pad = C3_ISP_RESIZER_PAD_SINK;
+ routes.sink_stream = 0;
+ routes.source_pad = C3_ISP_RESIZER_PAD_SOURCE;
+ routes.source_stream = 0;
+ routes.flags = V4L2_SUBDEV_ROUTE_FL_ACTIVE;
+
+ routing.num_routes = 1;
+ routing.routes = &routes;
+
+ return c3_isp_rsz_cfg_routing(sd, state, &routing);
+}
+
+static int c3_isp_rsz_enum_mbus_code(struct v4l2_subdev *sd,
+ struct v4l2_subdev_state *state,
+ struct v4l2_subdev_mbus_code_enum *code)
+{
+ if (code->index)
+ return -EINVAL;
+
+ code->code = MEDIA_BUS_FMT_YUV8_1X24;
+
+ return 0;
+}
+
+static void c3_isp_rsz_set_sink_fmt(struct v4l2_subdev_state *state,
+ struct v4l2_subdev_format *format)
+{
+ struct v4l2_mbus_framefmt *sink_fmt;
+ struct v4l2_mbus_framefmt *src_fmt;
+ struct v4l2_rect *sink_crop;
+ struct v4l2_rect *sink_cmps;
+
+ sink_fmt = v4l2_subdev_state_get_format(state, format->pad);
+ sink_crop = v4l2_subdev_state_get_crop(state, format->pad);
+ sink_cmps = v4l2_subdev_state_get_compose(state, format->pad);
+ src_fmt = v4l2_subdev_state_get_format(state, C3_ISP_RESIZER_PAD_SOURCE);
+
+ sink_fmt->code = MEDIA_BUS_FMT_YUV8_1X24;
+ sink_fmt->width = clamp_t(u32, format->format.width,
+ C3_ISP_MIN_WIDTH, C3_ISP_MAX_WIDTH);
+ sink_fmt->height = clamp_t(u32, format->format.height,
+ C3_ISP_MIN_HEIGHT, C3_ISP_MAX_HEIGHT);
+
+ sink_crop->width = sink_fmt->width;
+ sink_crop->height = sink_fmt->height;
+ sink_crop->left = 0;
+ sink_crop->top = 0;
+
+ sink_cmps->width = sink_crop->width;
+ sink_cmps->height = sink_crop->height;
+ sink_cmps->left = 0;
+ sink_cmps->top = 0;
+
+ src_fmt->code = sink_fmt->code;
+ src_fmt->width = sink_cmps->width;
+ src_fmt->height = sink_cmps->height;
+
+ format->format = *sink_fmt;
+}
+
+static void c3_isp_rsz_set_source_fmt(struct v4l2_subdev_state *state,
+ struct v4l2_subdev_format *format)
+{
+ struct v4l2_mbus_framefmt *src_fmt;
+ struct v4l2_mbus_framefmt *sink_fmt;
+ struct v4l2_rect *sink_cmps;
+
+ src_fmt = v4l2_subdev_state_get_format(state, format->pad);
+ sink_fmt = v4l2_subdev_state_get_format(state, C3_ISP_RESIZER_PAD_SINK);
+ sink_cmps = v4l2_subdev_state_get_compose(state, C3_ISP_RESIZER_PAD_SINK);
+
+ src_fmt->code = sink_fmt->code;
+ src_fmt->width = sink_cmps->width;
+ src_fmt->height = sink_cmps->height;
+
+ format->format = *src_fmt;
+}
+
+static int c3_isp_rsz_set_fmt(struct v4l2_subdev *sd,
+ struct v4l2_subdev_state *state,
+ struct v4l2_subdev_format *format)
+{
+ if (format->pad == C3_ISP_RESIZER_PAD_SINK)
+ c3_isp_rsz_set_sink_fmt(state, format);
+ else
+ c3_isp_rsz_set_source_fmt(state, format);
+
+ return 0;
+}
+
+static int c3_isp_rsz_get_selection(struct v4l2_subdev *sd,
+ struct v4l2_subdev_state *state,
+ struct v4l2_subdev_selection *sel)
+{
+ struct v4l2_mbus_framefmt *fmt;
+ struct v4l2_rect *crop;
+ struct v4l2_rect *cmps;
+
+ if (sel->pad == C3_ISP_RESIZER_PAD_SOURCE)
+ return -EINVAL;
+
+ switch (sel->target) {
+ case V4L2_SEL_TGT_CROP_BOUNDS:
+ fmt = v4l2_subdev_state_get_format(state, sel->pad);
+ sel->r.width = fmt->width;
+ sel->r.height = fmt->height;
+ sel->r.left = 0;
+ sel->r.top = 0;
+ break;
+ case V4L2_SEL_TGT_COMPOSE_BOUNDS:
+ crop = v4l2_subdev_state_get_crop(state, sel->pad);
+ sel->r.width = crop->width;
+ sel->r.height = crop->height;
+ sel->r.left = 0;
+ sel->r.top = 0;
+ break;
+ case V4L2_SEL_TGT_CROP:
+ crop = v4l2_subdev_state_get_crop(state, sel->pad);
+ sel->r = *crop;
+ break;
+ case V4L2_SEL_TGT_COMPOSE:
+ cmps = v4l2_subdev_state_get_compose(state, sel->pad);
+ sel->r = *cmps;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int c3_isp_rsz_set_selection(struct v4l2_subdev *sd,
+ struct v4l2_subdev_state *state,
+ struct v4l2_subdev_selection *sel)
+{
+ struct v4l2_mbus_framefmt *fmt;
+ struct v4l2_mbus_framefmt *src_fmt;
+ struct v4l2_rect *crop;
+ struct v4l2_rect *cmps;
+
+ if (sel->pad == C3_ISP_RESIZER_PAD_SOURCE)
+ return -EINVAL;
+
+ switch (sel->target) {
+ case V4L2_SEL_TGT_CROP:
+ fmt = v4l2_subdev_state_get_format(state, sel->pad);
+ crop = v4l2_subdev_state_get_crop(state, sel->pad);
+ cmps = v4l2_subdev_state_get_compose(state, sel->pad);
+ src_fmt = v4l2_subdev_state_get_format(state, C3_ISP_RESIZER_PAD_SOURCE);
+
+ sel->r.left = clamp_t(s32, sel->r.left, 0, fmt->width - 1);
+ sel->r.top = clamp_t(s32, sel->r.top, 0, fmt->height - 1);
+ sel->r.width = clamp(sel->r.width, C3_ISP_MIN_WIDTH,
+ fmt->width - sel->r.left);
+ sel->r.height = clamp(sel->r.height, C3_ISP_MIN_HEIGHT,
+ fmt->height - sel->r.top);
+
+ crop->width = ALIGN(sel->r.width, 2);
+ crop->height = ALIGN(sel->r.height, 2);
+ crop->left = sel->r.left;
+ crop->top = sel->r.top;
+
+ *cmps = *crop;
+
+ src_fmt->code = fmt->code;
+ src_fmt->width = cmps->width;
+ src_fmt->height = cmps->height;
+
+ sel->r = *crop;
+ break;
+ case V4L2_SEL_TGT_COMPOSE:
+ crop = v4l2_subdev_state_get_crop(state, sel->pad);
+ cmps = v4l2_subdev_state_get_compose(state, sel->pad);
+
+ sel->r.left = 0;
+ sel->r.top = 0;
+ sel->r.width = clamp(sel->r.width, C3_ISP_MIN_WIDTH, crop->width);
+ sel->r.height = clamp(sel->r.height, C3_ISP_MIN_HEIGHT, crop->height);
+
+ cmps->width = ALIGN(sel->r.width, 2);
+ cmps->height = ALIGN(sel->r.height, 2);
+ cmps->left = sel->r.left;
+ cmps->top = sel->r.top;
+
+ sel->r = *cmps;
+
+ fmt = v4l2_subdev_state_get_format(state, C3_ISP_RESIZER_PAD_SOURCE);
+ fmt->width = cmps->width;
+ fmt->height = cmps->height;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int c3_isp_rsz_init_state(struct v4l2_subdev *sd,
+ struct v4l2_subdev_state *state)
+{
+ struct v4l2_mbus_framefmt *sink_fmt;
+ struct v4l2_mbus_framefmt *src_fmt;
+ struct v4l2_rect *crop;
+ struct v4l2_rect *cmps;
+
+ sink_fmt = v4l2_subdev_state_get_format(state, C3_ISP_RESIZER_PAD_SINK);
+ sink_fmt->width = C3_ISP_DEFAULT_WIDTH;
+ sink_fmt->height = C3_ISP_DEFAULT_HEIGHT;
+ sink_fmt->field = V4L2_FIELD_NONE;
+ sink_fmt->code = C3_ISP_RSZ_DEF_PAD_FMT;
+ sink_fmt->colorspace = V4L2_COLORSPACE_SRGB;
+ sink_fmt->xfer_func = V4L2_XFER_FUNC_SRGB;
+ sink_fmt->ycbcr_enc = V4L2_YCBCR_ENC_601;
+ sink_fmt->quantization = V4L2_QUANTIZATION_LIM_RANGE;
+
+ crop = v4l2_subdev_state_get_crop(state, C3_ISP_RESIZER_PAD_SINK);
+ crop->width = C3_ISP_DEFAULT_WIDTH;
+ crop->height = C3_ISP_DEFAULT_HEIGHT;
+ crop->left = 0;
+ crop->top = 0;
+
+ cmps = v4l2_subdev_state_get_compose(state, C3_ISP_RESIZER_PAD_SINK);
+ cmps->width = C3_ISP_DEFAULT_WIDTH;
+ cmps->height = C3_ISP_DEFAULT_HEIGHT;
+ cmps->left = 0;
+ cmps->top = 0;
+
+ src_fmt = v4l2_subdev_state_get_format(state, C3_ISP_RESIZER_PAD_SOURCE);
+ *src_fmt = *sink_fmt;
+
+ return c3_isp_rsz_init_routing(sd, state);
+}
+
+static const struct v4l2_subdev_pad_ops c3_isp_rsz_pad_ops = {
+ .enum_mbus_code = c3_isp_rsz_enum_mbus_code,
+ .get_fmt = v4l2_subdev_get_fmt,
+ .set_fmt = c3_isp_rsz_set_fmt,
+ .get_selection = c3_isp_rsz_get_selection,
+ .set_selection = c3_isp_rsz_set_selection,
+ .enable_streams = c3_isp_rsz_enable_streams,
+ .disable_streams = c3_isp_rsz_disable_streams,
+};
+
+static const struct v4l2_subdev_ops c3_isp_rsz_subdev_ops = {
+ .pad = &c3_isp_rsz_pad_ops,
+};
+
+static const struct v4l2_subdev_internal_ops c3_isp_rsz_internal_ops = {
+ .init_state = c3_isp_rsz_init_state,
+};
+
+/* Media entity operations */
+static const struct media_entity_operations c3_isp_rsz_entity_ops = {
+ .link_validate = v4l2_subdev_link_validate,
+};
+
+static int c3_isp_rsz_register(struct c3_isp_resizer *rsz)
+{
+ struct v4l2_subdev *sd = &rsz->sd;
+ int ret;
+
+ v4l2_subdev_init(sd, &c3_isp_rsz_subdev_ops);
+ sd->owner = THIS_MODULE;
+ sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
+ sd->internal_ops = &c3_isp_rsz_internal_ops;
+ snprintf(sd->name, sizeof(sd->name), "c3-isp-resizer%u", rsz->id);
+
+ sd->entity.function = MEDIA_ENT_F_PROC_VIDEO_SCALER;
+ sd->entity.ops = &c3_isp_rsz_entity_ops;
+
+ sd->dev = rsz->isp->dev;
+ v4l2_set_subdevdata(sd, rsz);
+
+ rsz->pads[C3_ISP_RESIZER_PAD_SINK].flags = MEDIA_PAD_FL_SINK;
+ rsz->pads[C3_ISP_RESIZER_PAD_SOURCE].flags = MEDIA_PAD_FL_SOURCE;
+ ret = media_entity_pads_init(&sd->entity, C3_ISP_RESIZER_PAD_MAX, rsz->pads);
+ if (ret)
+ return ret;
+
+ ret = v4l2_subdev_init_finalize(sd);
+ if (ret)
+ goto err_entity_cleanup;
+
+ ret = v4l2_device_register_subdev(&rsz->isp->v4l2_dev, sd);
+ if (ret)
+ goto err_subdev_cleanup;
+
+ return 0;
+
+err_subdev_cleanup:
+ v4l2_subdev_cleanup(sd);
+err_entity_cleanup:
+ media_entity_cleanup(&sd->entity);
+ return ret;
+}
+
+static void c3_isp_rsz_unregister(struct c3_isp_resizer *rsz)
+{
+ struct v4l2_subdev *sd = &rsz->sd;
+
+ v4l2_device_unregister_subdev(sd);
+ v4l2_subdev_cleanup(sd);
+ media_entity_cleanup(&sd->entity);
+}
+
+int c3_isp_resizers_register(struct c3_isp_device *isp)
+{
+ u32 i;
+ int ret;
+
+ for (i = C3_ISP_RSZ_0; i < C3_ISP_NUM_RSZ; i++) {
+ struct c3_isp_resizer *rsz = &isp->resizers[i];
+
+ rsz->id = i;
+ rsz->isp = isp;
+ rsz->src_sd = &isp->core.sd;
+ rsz->src_sd_pad = C3_ISP_CORE_PAD_SOURCE_VIDEO;
+
+ ret = c3_isp_rsz_register(rsz);
+ if (ret) {
+ rsz->isp = NULL;
+ c3_isp_resizers_unregister(isp);
+ return ret;
+ }
+ }
+
+ return 0;
+}
+
+void c3_isp_resizers_unregister(struct c3_isp_device *isp)
+{
+ u32 i;
+
+ for (i = C3_ISP_RSZ_0; i < C3_ISP_NUM_RSZ; i++) {
+ struct c3_isp_resizer *rsz = &isp->resizers[i];
+
+ if (rsz->isp)
+ c3_isp_rsz_unregister(rsz);
+ };
+}
diff --git a/drivers/media/platform/amlogic/c3/isp/c3-isp-stats.c b/drivers/media/platform/amlogic/c3/isp/c3-isp-stats.c
new file mode 100644
index 000000000000..1c376c800176
--- /dev/null
+++ b/drivers/media/platform/amlogic/c3/isp/c3-isp-stats.c
@@ -0,0 +1,319 @@
+// SPDX-License-Identifier: (GPL-2.0-only OR MIT)
+/*
+ * Copyright (C) 2024 Amlogic, Inc. All rights reserved
+ */
+
+#include <linux/cleanup.h>
+#include <linux/media/amlogic/c3-isp-config.h>
+#include <linux/pm_runtime.h>
+
+#include <media/v4l2-ioctl.h>
+#include <media/v4l2-mc.h>
+#include <media/videobuf2-dma-contig.h>
+
+#include "c3-isp-common.h"
+#include "c3-isp-regs.h"
+
+/* Hardware configuration */
+
+static void c3_isp_stats_cfg_dmawr_addr(struct c3_isp_stats *stats)
+{
+ u32 awb_dma_size = sizeof(struct c3_isp_awb_stats);
+ u32 ae_dma_size = sizeof(struct c3_isp_ae_stats);
+ u32 awb_dma_addr = stats->buff->dma_addr;
+ u32 af_dma_addr;
+ u32 ae_dma_addr;
+
+ ae_dma_addr = awb_dma_addr + awb_dma_size;
+ af_dma_addr = ae_dma_addr + ae_dma_size;
+
+ c3_isp_update_bits(stats->isp, VIU_DMAWR_BADDR0,
+ VIU_DMAWR_BADDR0_AF_STATS_BASE_ADDR_MASK,
+ VIU_DMAWR_BADDR0_AF_STATS_BASE_ADDR(af_dma_addr));
+
+ c3_isp_update_bits(stats->isp, VIU_DMAWR_BADDR1,
+ VIU_DMAWR_BADDR1_AWB_STATS_BASE_ADDR_MASK,
+ VIU_DMAWR_BADDR1_AWB_STATS_BASE_ADDR(awb_dma_addr));
+
+ c3_isp_update_bits(stats->isp, VIU_DMAWR_BADDR2,
+ VIU_DMAWR_BADDR2_AE_STATS_BASE_ADDR_MASK,
+ VIU_DMAWR_BADDR2_AE_STATS_BASE_ADDR(ae_dma_addr));
+}
+
+static void c3_isp_stats_cfg_buff(struct c3_isp_stats *stats)
+{
+ stats->buff = list_first_entry_or_null(&stats->pending,
+ struct c3_isp_buffer, list);
+ if (stats->buff) {
+ c3_isp_stats_cfg_dmawr_addr(stats);
+ list_del(&stats->buff->list);
+ }
+}
+
+void c3_isp_stats_pre_cfg(struct c3_isp_device *isp)
+{
+ struct c3_isp_stats *stats = &isp->stats;
+ u32 dma_size;
+
+ c3_isp_update_bits(stats->isp, ISP_AF_EN_CTRL, ISP_AF_EN_CTRL_STAT_SEL_MASK,
+ ISP_AF_EN_CTRL_STAT_SEL_NEW);
+ c3_isp_update_bits(stats->isp, ISP_AE_CTRL, ISP_AE_CTRL_LUMA_MODE_MASK,
+ ISP_AE_CTRL_LUMA_MODE_FILTER);
+
+ /* The unit of dma_size is 16 bytes */
+ dma_size = sizeof(struct c3_isp_af_stats) / C3_ISP_DMA_SIZE_ALIGN_BYTES;
+ c3_isp_update_bits(stats->isp, VIU_DMAWR_SIZE0, VIU_DMAWR_SIZE0_AF_STATS_SIZE_MASK,
+ VIU_DMAWR_SIZE0_AF_STATS_SIZE(dma_size));
+
+ dma_size = sizeof(struct c3_isp_awb_stats) / C3_ISP_DMA_SIZE_ALIGN_BYTES;
+ c3_isp_update_bits(stats->isp, VIU_DMAWR_SIZE0, VIU_DMAWR_SIZE0_AWB_STATS_SIZE_MASK,
+ VIU_DMAWR_SIZE0_AWB_STATS_SIZE(dma_size));
+
+ dma_size = sizeof(struct c3_isp_ae_stats) / C3_ISP_DMA_SIZE_ALIGN_BYTES;
+ c3_isp_update_bits(stats->isp, VIU_DMAWR_SIZE1, VIU_DMAWR_SIZE1_AE_STATS_SIZE_MASK,
+ VIU_DMAWR_SIZE1_AE_STATS_SIZE(dma_size));
+
+ guard(spinlock_irqsave)(&stats->buff_lock);
+
+ c3_isp_stats_cfg_buff(stats);
+}
+
+static int c3_isp_stats_querycap(struct file *file, void *fh,
+ struct v4l2_capability *cap)
+{
+ strscpy(cap->driver, C3_ISP_DRIVER_NAME, sizeof(cap->driver));
+ strscpy(cap->card, "AML C3 ISP", sizeof(cap->card));
+
+ return 0;
+}
+
+static int c3_isp_stats_enum_fmt(struct file *file, void *fh,
+ struct v4l2_fmtdesc *f)
+{
+ struct c3_isp_stats *stats = video_drvdata(file);
+
+ if (f->index > 0 || f->type != stats->vb2_q.type)
+ return -EINVAL;
+
+ f->pixelformat = V4L2_META_FMT_C3ISP_STATS;
+
+ return 0;
+}
+
+static int c3_isp_stats_g_fmt(struct file *file, void *fh,
+ struct v4l2_format *f)
+{
+ struct c3_isp_stats *stats = video_drvdata(file);
+
+ f->fmt.meta = stats->vfmt.fmt.meta;
+
+ return 0;
+}
+
+static const struct v4l2_ioctl_ops isp_stats_v4l2_ioctl_ops = {
+ .vidioc_querycap = c3_isp_stats_querycap,
+ .vidioc_enum_fmt_meta_cap = c3_isp_stats_enum_fmt,
+ .vidioc_g_fmt_meta_cap = c3_isp_stats_g_fmt,
+ .vidioc_s_fmt_meta_cap = c3_isp_stats_g_fmt,
+ .vidioc_try_fmt_meta_cap = c3_isp_stats_g_fmt,
+ .vidioc_reqbufs = vb2_ioctl_reqbufs,
+ .vidioc_querybuf = vb2_ioctl_querybuf,
+ .vidioc_qbuf = vb2_ioctl_qbuf,
+ .vidioc_expbuf = vb2_ioctl_expbuf,
+ .vidioc_dqbuf = vb2_ioctl_dqbuf,
+ .vidioc_prepare_buf = vb2_ioctl_prepare_buf,
+ .vidioc_create_bufs = vb2_ioctl_create_bufs,
+ .vidioc_streamon = vb2_ioctl_streamon,
+ .vidioc_streamoff = vb2_ioctl_streamoff,
+};
+
+static const struct v4l2_file_operations isp_stats_v4l2_fops = {
+ .open = v4l2_fh_open,
+ .release = vb2_fop_release,
+ .poll = vb2_fop_poll,
+ .unlocked_ioctl = video_ioctl2,
+ .mmap = vb2_fop_mmap,
+};
+
+static int c3_isp_stats_vb2_queue_setup(struct vb2_queue *q,
+ unsigned int *num_buffers,
+ unsigned int *num_planes,
+ unsigned int sizes[],
+ struct device *alloc_devs[])
+{
+ if (*num_planes) {
+ if (*num_planes != 1)
+ return -EINVAL;
+
+ if (sizes[0] < sizeof(struct c3_isp_stats_buffer))
+ return -EINVAL;
+ } else {
+ *num_planes = 1;
+ sizes[0] = sizeof(struct c3_isp_stats_buffer);
+ }
+
+ return 0;
+}
+
+static void c3_isp_stats_vb2_buf_queue(struct vb2_buffer *vb)
+{
+ struct vb2_v4l2_buffer *v4l2_buf = to_vb2_v4l2_buffer(vb);
+ struct c3_isp_buffer *buf =
+ container_of(v4l2_buf, struct c3_isp_buffer, vb);
+ struct c3_isp_stats *stats = vb2_get_drv_priv(vb->vb2_queue);
+
+ guard(spinlock_irqsave)(&stats->buff_lock);
+
+ list_add_tail(&buf->list, &stats->pending);
+}
+
+static int c3_isp_stats_vb2_buf_prepare(struct vb2_buffer *vb)
+{
+ struct c3_isp_stats *stats = vb2_get_drv_priv(vb->vb2_queue);
+ unsigned int size = stats->vfmt.fmt.meta.buffersize;
+
+ if (vb2_plane_size(vb, 0) < size) {
+ dev_err(stats->isp->dev,
+ "User buffer too small (%ld < %u)\n",
+ vb2_plane_size(vb, 0), size);
+ return -EINVAL;
+ }
+
+ vb2_set_plane_payload(vb, 0, size);
+
+ return 0;
+}
+
+static int c3_isp_stats_vb2_buf_init(struct vb2_buffer *vb)
+{
+ struct vb2_v4l2_buffer *v4l2_buf = to_vb2_v4l2_buffer(vb);
+ struct c3_isp_buffer *buf =
+ container_of(v4l2_buf, struct c3_isp_buffer, vb);
+
+ buf->dma_addr = vb2_dma_contig_plane_dma_addr(vb, 0);
+
+ return 0;
+}
+
+static void c3_isp_stats_vb2_stop_streaming(struct vb2_queue *q)
+{
+ struct c3_isp_stats *stats = vb2_get_drv_priv(q);
+
+ guard(spinlock_irqsave)(&stats->buff_lock);
+
+ if (stats->buff) {
+ vb2_buffer_done(&stats->buff->vb.vb2_buf, VB2_BUF_STATE_ERROR);
+ stats->buff = NULL;
+ }
+
+ while (!list_empty(&stats->pending)) {
+ struct c3_isp_buffer *buff;
+
+ buff = list_first_entry(&stats->pending,
+ struct c3_isp_buffer, list);
+ list_del(&buff->list);
+ vb2_buffer_done(&buff->vb.vb2_buf, VB2_BUF_STATE_ERROR);
+ }
+}
+
+static const struct vb2_ops isp_stats_vb2_ops = {
+ .queue_setup = c3_isp_stats_vb2_queue_setup,
+ .buf_queue = c3_isp_stats_vb2_buf_queue,
+ .buf_prepare = c3_isp_stats_vb2_buf_prepare,
+ .buf_init = c3_isp_stats_vb2_buf_init,
+ .wait_prepare = vb2_ops_wait_prepare,
+ .wait_finish = vb2_ops_wait_finish,
+ .stop_streaming = c3_isp_stats_vb2_stop_streaming,
+};
+
+int c3_isp_stats_register(struct c3_isp_device *isp)
+{
+ struct c3_isp_stats *stats = &isp->stats;
+ struct video_device *vdev = &stats->vdev;
+ struct vb2_queue *vb2_q = &stats->vb2_q;
+ int ret;
+
+ memset(stats, 0, sizeof(*stats));
+ stats->vfmt.fmt.meta.dataformat = V4L2_META_FMT_C3ISP_STATS;
+ stats->vfmt.fmt.meta.buffersize = sizeof(struct c3_isp_stats_buffer);
+ stats->isp = isp;
+ INIT_LIST_HEAD(&stats->pending);
+ spin_lock_init(&stats->buff_lock);
+
+ mutex_init(&stats->lock);
+
+ snprintf(vdev->name, sizeof(vdev->name), "c3-isp-stats");
+ vdev->fops = &isp_stats_v4l2_fops;
+ vdev->ioctl_ops = &isp_stats_v4l2_ioctl_ops;
+ vdev->v4l2_dev = &isp->v4l2_dev;
+ vdev->lock = &stats->lock;
+ vdev->minor = -1;
+ vdev->queue = vb2_q;
+ vdev->release = video_device_release_empty;
+ vdev->device_caps = V4L2_CAP_META_CAPTURE | V4L2_CAP_STREAMING;
+ vdev->vfl_dir = VFL_DIR_RX;
+ video_set_drvdata(vdev, stats);
+
+ vb2_q->drv_priv = stats;
+ vb2_q->mem_ops = &vb2_dma_contig_memops;
+ vb2_q->ops = &isp_stats_vb2_ops;
+ vb2_q->type = V4L2_BUF_TYPE_META_CAPTURE;
+ vb2_q->io_modes = VB2_DMABUF | VB2_MMAP;
+ vb2_q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
+ vb2_q->buf_struct_size = sizeof(struct c3_isp_buffer);
+ vb2_q->dev = isp->dev;
+ vb2_q->lock = &stats->lock;
+ vb2_q->min_queued_buffers = 2;
+
+ ret = vb2_queue_init(vb2_q);
+ if (ret)
+ goto err_destroy;
+
+ stats->pad.flags = MEDIA_PAD_FL_SINK;
+ ret = media_entity_pads_init(&vdev->entity, 1, &stats->pad);
+ if (ret)
+ goto err_queue_release;
+
+ ret = video_register_device(vdev, VFL_TYPE_VIDEO, -1);
+ if (ret) {
+ dev_err(isp->dev,
+ "Failed to register %s: %d\n", vdev->name, ret);
+ goto err_entity_cleanup;
+ }
+
+ return 0;
+
+err_entity_cleanup:
+ media_entity_cleanup(&vdev->entity);
+err_queue_release:
+ vb2_queue_release(vb2_q);
+err_destroy:
+ mutex_destroy(&stats->lock);
+ return ret;
+}
+
+void c3_isp_stats_unregister(struct c3_isp_device *isp)
+{
+ struct c3_isp_stats *stats = &isp->stats;
+
+ vb2_queue_release(&stats->vb2_q);
+ media_entity_cleanup(&stats->vdev.entity);
+ video_unregister_device(&stats->vdev);
+ mutex_destroy(&stats->lock);
+}
+
+void c3_isp_stats_isr(struct c3_isp_device *isp)
+{
+ struct c3_isp_stats *stats = &isp->stats;
+
+ guard(spinlock_irqsave)(&stats->buff_lock);
+
+ if (stats->buff) {
+ stats->buff->vb.sequence = stats->isp->frm_sequence;
+ stats->buff->vb.vb2_buf.timestamp = ktime_get();
+ stats->buff->vb.field = V4L2_FIELD_NONE;
+ vb2_buffer_done(&stats->buff->vb.vb2_buf, VB2_BUF_STATE_DONE);
+ }
+
+ c3_isp_stats_cfg_buff(stats);
+}
--
2.47.0
