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Subject[PATCH v5 09/16] media: rkisp1: add rockchip isp1 core driver
Date
From: Jacob Chen <jacob2.chen@rock-chips.com>

Add the core driver for rockchip isp1.

Signed-off-by: Jacob Chen <jacob2.chen@rock-chips.com>
Signed-off-by: Shunqian Zheng <zhengsq@rock-chips.com>
Signed-off-by: Yichong Zhong <zyc@rock-chips.com>
Signed-off-by: Jacob Chen <cc@rock-chips.com>
Signed-off-by: Eddie Cai <eddie.cai.linux@gmail.com>
Signed-off-by: Jeffy Chen <jeffy.chen@rock-chips.com>
Signed-off-by: Allon Huang <allon.huang@rock-chips.com>
Signed-off-by: Tomasz Figa <tfiga@chromium.org>
---
drivers/media/platform/Kconfig | 10 +
drivers/media/platform/Makefile | 1 +
drivers/media/platform/rockchip/isp1/Makefile | 8 +
drivers/media/platform/rockchip/isp1/common.h | 137 ++++++
drivers/media/platform/rockchip/isp1/dev.c | 653 ++++++++++++++++++++++++++
drivers/media/platform/rockchip/isp1/dev.h | 120 +++++
6 files changed, 929 insertions(+)
create mode 100644 drivers/media/platform/rockchip/isp1/Makefile
create mode 100644 drivers/media/platform/rockchip/isp1/common.h
create mode 100644 drivers/media/platform/rockchip/isp1/dev.c
create mode 100644 drivers/media/platform/rockchip/isp1/dev.h

diff --git a/drivers/media/platform/Kconfig b/drivers/media/platform/Kconfig
index fd0c998..062fffc 100644
--- a/drivers/media/platform/Kconfig
+++ b/drivers/media/platform/Kconfig
@@ -117,6 +117,16 @@ config VIDEO_QCOM_CAMSS
select VIDEOBUF2_DMA_SG
select V4L2_FWNODE

+config VIDEO_ROCKCHIP_ISP1
+ tristate "Rockchip Image Signal Processing v1 Unit driver"
+ depends on VIDEO_V4L2 && VIDEO_V4L2_SUBDEV_API
+ depends on ARCH_ROCKCHIP || COMPILE_TEST
+ select VIDEOBUF2_DMA_CONTIG
+ select V4L2_FWNODE
+ default n
+ ---help---
+ Support for ISP1 on the rockchip SoC.
+
config VIDEO_S3C_CAMIF
tristate "Samsung S3C24XX/S3C64XX SoC Camera Interface driver"
depends on VIDEO_V4L2 && I2C && VIDEO_V4L2_SUBDEV_API
diff --git a/drivers/media/platform/Makefile b/drivers/media/platform/Makefile
index 003b0bb..d235908 100644
--- a/drivers/media/platform/Makefile
+++ b/drivers/media/platform/Makefile
@@ -67,6 +67,7 @@ obj-$(CONFIG_VIDEO_RENESAS_FDP1) += rcar_fdp1.o
obj-$(CONFIG_VIDEO_RENESAS_JPU) += rcar_jpu.o
obj-$(CONFIG_VIDEO_RENESAS_VSP1) += vsp1/

+obj-$(CONFIG_VIDEO_ROCKCHIP_ISP1) += rockchip/isp1/
obj-$(CONFIG_VIDEO_ROCKCHIP_RGA) += rockchip/rga/

obj-y += omap/
diff --git a/drivers/media/platform/rockchip/isp1/Makefile b/drivers/media/platform/rockchip/isp1/Makefile
new file mode 100644
index 0000000..18af648
--- /dev/null
+++ b/drivers/media/platform/rockchip/isp1/Makefile
@@ -0,0 +1,8 @@
+obj-$(CONFIG_VIDEO_ROCKCHIP_ISP1) += video_rkisp1.o
+video_rkisp1-objs += rkisp1.o \
+ dev.o \
+ regs.o \
+ isp_stats.o \
+ isp_params.o \
+ mipi_dphy_sy.o \
+ capture.o
diff --git a/drivers/media/platform/rockchip/isp1/common.h b/drivers/media/platform/rockchip/isp1/common.h
new file mode 100644
index 0000000..1adfb90
--- /dev/null
+++ b/drivers/media/platform/rockchip/isp1/common.h
@@ -0,0 +1,137 @@
+/*
+ * Rockchip isp1 driver
+ *
+ * Copyright (C) 2017 Rockchip Electronics Co., Ltd.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses. You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ * Redistribution and use in source and binary forms, with or
+ * without modification, are permitted provided that the following
+ * conditions are met:
+ *
+ * - Redistributions of source code must retain the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials
+ * provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#ifndef _RKISP1_COMMON_H
+#define _RKISP1_COMMON_H
+
+#include <linux/mutex.h>
+#include <media/media-device.h>
+#include <media/media-entity.h>
+#include <media/v4l2-ctrls.h>
+#include <media/v4l2-device.h>
+#include <media/videobuf2-v4l2.h>
+
+#define RKISP1_DEFAULT_WIDTH 800
+#define RKISP1_DEFAULT_HEIGHT 600
+
+#define RKISP1_MAX_STREAM 2
+#define RKISP1_STREAM_SP 0
+#define RKISP1_STREAM_MP 1
+
+#define RKISP1_PLANE_Y 0
+#define RKISP1_PLANE_CB 1
+#define RKISP1_PLANE_CR 2
+
+enum rkisp1_sd_type {
+ RKISP1_SD_SENSOR,
+ RKISP1_SD_PHY_CSI,
+ RKISP1_SD_VCM,
+ RKISP1_SD_FLASH,
+ RKISP1_SD_MAX,
+};
+
+/* One structure per video node */
+struct rkisp1_vdev_node {
+ struct vb2_queue buf_queue;
+ /* vfd lock */
+ struct mutex vlock;
+ struct video_device vdev;
+ struct media_pad pad;
+};
+
+enum rkisp1_fmt_pix_type {
+ FMT_YUV,
+ FMT_RGB,
+ FMT_BAYER,
+ FMT_JPEG,
+ FMT_MAX
+};
+
+enum rkisp1_fmt_raw_pat_type {
+ RAW_RGGB = 0,
+ RAW_GRBG,
+ RAW_GBRG,
+ RAW_BGGR,
+};
+
+enum rkisp1_state {
+ /* path not yet opened: */
+ RKISP1_STATE_DISABLED,
+ /* path opened and configured, ready for streaming: */
+ RKISP1_STATE_READY,
+ /* path is streaming: */
+ RKISP1_STATE_STREAMING
+};
+
+struct rkisp1_buffer {
+ struct vb2_v4l2_buffer vb;
+ struct list_head queue;
+ union {
+ u32 buff_addr[VIDEO_MAX_PLANES];
+ void *vaddr[VIDEO_MAX_PLANES];
+ };
+};
+
+struct rkisp1_dummy_buffer {
+ void *vaddr;
+ dma_addr_t dma_addr;
+ u32 size;
+};
+
+extern int rkisp1_debug;
+
+static inline
+struct rkisp1_vdev_node *vdev_to_node(struct video_device *vdev)
+{
+ return container_of(vdev, struct rkisp1_vdev_node, vdev);
+}
+
+static inline struct rkisp1_vdev_node *queue_to_node(struct vb2_queue *q)
+{
+ return container_of(q, struct rkisp1_vdev_node, buf_queue);
+}
+
+static inline struct rkisp1_buffer *to_rkisp1_buffer(struct vb2_v4l2_buffer *vb)
+{
+ return container_of(vb, struct rkisp1_buffer, vb);
+}
+
+static inline struct vb2_queue *to_vb2_queue(struct file *file)
+{
+ struct rkisp1_vdev_node *vnode = video_drvdata(file);
+
+ return &vnode->buf_queue;
+}
+
+#endif /* _RKISP1_COMMON_H */
diff --git a/drivers/media/platform/rockchip/isp1/dev.c b/drivers/media/platform/rockchip/isp1/dev.c
new file mode 100644
index 0000000..248751c
--- /dev/null
+++ b/drivers/media/platform/rockchip/isp1/dev.c
@@ -0,0 +1,653 @@
+/*
+ * Rockchip isp1 driver
+ *
+ * Copyright (C) 2017 Rockchip Electronics Co., Ltd.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses. You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ * Redistribution and use in source and binary forms, with or
+ * without modification, are permitted provided that the following
+ * conditions are met:
+ *
+ * - Redistributions of source code must retain the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials
+ * provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include <linux/clk.h>
+#include <linux/interrupt.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_graph.h>
+#include <linux/of_platform.h>
+#include <linux/pm_runtime.h>
+#include <linux/pinctrl/consumer.h>
+#include "common.h"
+#include "regs.h"
+
+struct isp_match_data {
+ const char * const *clks;
+ int size;
+};
+
+int rkisp1_debug;
+module_param_named(debug, rkisp1_debug, int, 0644);
+MODULE_PARM_DESC(debug, "Debug level (0-1)");
+
+/**************************** pipeline operations *****************************/
+
+static int __isp_pipeline_prepare(struct rkisp1_pipeline *p,
+ struct media_entity *me)
+{
+ struct rkisp1_device *dev = container_of(p, struct rkisp1_device, pipe);
+ struct v4l2_subdev *sd;
+ int i;
+
+ p->num_subdevs = 0;
+ memset(p->subdevs, 0, sizeof(p->subdevs));
+
+ while (1) {
+ struct media_pad *pad = NULL;
+
+ /* Find remote source pad */
+ for (i = 0; i < me->num_pads; i++) {
+ struct media_pad *spad = &me->pads[i];
+
+ if (!(spad->flags & MEDIA_PAD_FL_SINK))
+ continue;
+ pad = media_entity_remote_pad(spad);
+ if (pad)
+ break;
+ }
+
+ if (!pad)
+ break;
+
+ sd = media_entity_to_v4l2_subdev(pad->entity);
+ if (sd != &dev->isp_sdev.sd)
+ p->subdevs[p->num_subdevs++] = sd;
+
+ me = &sd->entity;
+ if (me->num_pads == 1)
+ break;
+ }
+ return 0;
+}
+
+static int __subdev_set_power(struct v4l2_subdev *sd, int on)
+{
+ int ret;
+
+ if (!sd)
+ return -ENXIO;
+
+ ret = v4l2_subdev_call(sd, core, s_power, on);
+
+ return ret != -ENOIOCTLCMD ? ret : 0;
+}
+
+static int __isp_pipeline_s_power(struct rkisp1_pipeline *p, bool on)
+{
+ struct rkisp1_device *dev = container_of(p, struct rkisp1_device, pipe);
+ int i, ret;
+
+ if (on) {
+ __subdev_set_power(&dev->isp_sdev.sd, true);
+
+ for (i = p->num_subdevs - 1; i >= 0; --i) {
+ ret = __subdev_set_power(p->subdevs[i], true);
+ if (ret < 0 && ret != -ENXIO)
+ goto err_power_off;
+ }
+ } else {
+ for (i = 0; i < p->num_subdevs; ++i)
+ __subdev_set_power(p->subdevs[i], false);
+
+ __subdev_set_power(&dev->isp_sdev.sd, false);
+ }
+
+ return 0;
+
+err_power_off:
+ for (++i; i < p->num_subdevs; ++i)
+ __subdev_set_power(p->subdevs[i], false);
+ __subdev_set_power(&dev->isp_sdev.sd, true);
+ return ret;
+}
+
+static int rkisp1_pipeline_open(struct rkisp1_pipeline *p,
+ struct media_entity *me,
+ bool prepare)
+{
+ int ret;
+
+ if (WARN_ON(!p || !me))
+ return -EINVAL;
+ if (atomic_inc_return(&p->power_cnt) > 1)
+ return 0;
+
+ /* go through media graphic and get subdevs */
+ if (prepare)
+ __isp_pipeline_prepare(p, me);
+
+ if (!p->num_subdevs)
+ return -EINVAL;
+
+ ret = __isp_pipeline_s_power(p, 1);
+ if (ret < 0)
+ return ret;
+
+ return 0;
+}
+
+static int rkisp1_pipeline_close(struct rkisp1_pipeline *p)
+{
+ int ret;
+
+ if (atomic_dec_return(&p->power_cnt) > 0)
+ return 0;
+ ret = __isp_pipeline_s_power(p, 0);
+
+ return ret == -ENXIO ? 0 : ret;
+}
+
+/*
+ * stream-on order: isp_subdev, mipi dphy, sensor
+ * stream-off order: mipi dphy, sensor, isp_subdev
+ */
+static int rkisp1_pipeline_set_stream(struct rkisp1_pipeline *p, bool on)
+{
+ struct rkisp1_device *dev = container_of(p, struct rkisp1_device, pipe);
+ int i, ret;
+
+ if ((on && atomic_inc_return(&p->stream_cnt) > 1) ||
+ (!on && atomic_dec_return(&p->stream_cnt) > 0))
+ return 0;
+
+ if (on)
+ v4l2_subdev_call(&dev->isp_sdev.sd, video, s_stream, true);
+
+ /* phy -> sensor */
+ for (i = 0; i < p->num_subdevs; ++i) {
+ ret = v4l2_subdev_call(p->subdevs[i], video, s_stream, on);
+ if (on && ret < 0 && ret != -ENOIOCTLCMD && ret != -ENODEV)
+ goto err_stream_off;
+ }
+
+ if (!on)
+ v4l2_subdev_call(&dev->isp_sdev.sd, video, s_stream, false);
+
+ return 0;
+
+err_stream_off:
+ for (--i; i >= 0; --i)
+ v4l2_subdev_call(p->subdevs[i], video, s_stream, false);
+ v4l2_subdev_call(&dev->isp_sdev.sd, video, s_stream, false);
+ return ret;
+}
+
+/***************************** media controller *******************************/
+/* See http://opensource.rock-chips.com/wiki_Rockchip-isp1 for Topology */
+
+static int rkisp1_create_links(struct rkisp1_device *dev)
+{
+ struct media_entity *source, *sink;
+ unsigned int flags, s, pad;
+ int ret;
+
+ /* sensor links(or mipi-phy) */
+ for (s = 0; s < dev->num_sensors; ++s) {
+ struct rkisp1_sensor_info *sensor = &dev->sensors[s];
+
+ for (pad = 0; pad < sensor->sd->entity.num_pads; pad++)
+ if (sensor->sd->entity.pads[pad].flags &
+ MEDIA_PAD_FL_SOURCE)
+ break;
+
+ if (pad == sensor->sd->entity.num_pads) {
+ dev_err(dev->dev,
+ "failed to find src pad for %s\n",
+ sensor->sd->name);
+
+ return -ENXIO;
+ }
+
+ ret = media_create_pad_link(
+ &sensor->sd->entity, pad,
+ &dev->isp_sdev.sd.entity,
+ RKISP1_ISP_PAD_SINK + s,
+ s ? 0 : MEDIA_LNK_FL_ENABLED);
+ if (ret) {
+ dev_err(dev->dev,
+ "failed to create link for %s\n",
+ sensor->sd->name);
+ return ret;
+ }
+ }
+
+ /* params links */
+ source = &dev->params_vdev.vnode.vdev.entity;
+ sink = &dev->isp_sdev.sd.entity;
+ flags = MEDIA_LNK_FL_ENABLED;
+ ret = media_create_pad_link(source, 0, sink,
+ RKISP1_ISP_PAD_SINK_PARAMS, flags);
+ if (ret < 0)
+ return ret;
+
+ /* create isp internal links */
+ /* SP links */
+ source = &dev->isp_sdev.sd.entity;
+ sink = &dev->stream[RKISP1_STREAM_SP].vnode.vdev.entity;
+ ret = media_create_pad_link(source, RKISP1_ISP_PAD_SOURCE_PATH,
+ sink, 0, flags);
+ if (ret < 0)
+ return ret;
+
+ /* MP links */
+ source = &dev->isp_sdev.sd.entity;
+ sink = &dev->stream[RKISP1_STREAM_MP].vnode.vdev.entity;
+ ret = media_create_pad_link(source, RKISP1_ISP_PAD_SOURCE_PATH,
+ sink, 0, flags);
+ if (ret < 0)
+ return ret;
+
+ /* 3A stats links */
+ source = &dev->isp_sdev.sd.entity;
+ sink = &dev->stats_vdev.vnode.vdev.entity;
+ return media_create_pad_link(source, RKISP1_ISP_PAD_SOURCE_STATS,
+ sink, 0, flags);
+}
+
+static int subdev_notifier_complete(struct v4l2_async_notifier *notifier)
+{
+ struct rkisp1_device *dev;
+ int ret;
+
+ dev = container_of(notifier, struct rkisp1_device, notifier);
+
+ mutex_lock(&dev->media_dev.graph_mutex);
+ ret = rkisp1_create_links(dev);
+ if (ret < 0)
+ goto unlock;
+ ret = v4l2_device_register_subdev_nodes(&dev->v4l2_dev);
+ if (ret < 0)
+ goto unlock;
+
+ v4l2_info(&dev->v4l2_dev, "Async subdev notifier completed\n");
+
+unlock:
+ mutex_unlock(&dev->media_dev.graph_mutex);
+ return ret;
+}
+
+struct rkisp1_async_subdev {
+ struct v4l2_async_subdev asd;
+ struct v4l2_mbus_config mbus;
+};
+
+static int subdev_notifier_bound(struct v4l2_async_notifier *notifier,
+ struct v4l2_subdev *subdev,
+ struct v4l2_async_subdev *asd)
+{
+ struct rkisp1_device *isp_dev = container_of(notifier,
+ struct rkisp1_device, notifier);
+ struct rkisp1_async_subdev *s_asd = container_of(asd,
+ struct rkisp1_async_subdev, asd);
+
+ if (isp_dev->num_sensors == ARRAY_SIZE(isp_dev->sensors))
+ return -EBUSY;
+
+ isp_dev->sensors[isp_dev->num_sensors].mbus = s_asd->mbus;
+ isp_dev->sensors[isp_dev->num_sensors].sd = subdev;
+ ++isp_dev->num_sensors;
+
+ v4l2_dbg(1, rkisp1_debug, subdev, "Async registered subdev\n");
+
+ return 0;
+}
+
+static int rkisp1_fwnode_parse(struct device *dev,
+ struct v4l2_fwnode_endpoint *vep,
+ struct v4l2_async_subdev *asd)
+{
+ struct rkisp1_async_subdev *rk_asd =
+ container_of(asd, struct rkisp1_async_subdev, asd);
+ struct v4l2_fwnode_bus_parallel *bus = &vep->bus.parallel;
+
+ /*
+ * MIPI sensor is linked with a mipi dphy and its media bus config can
+ * not be get in here
+ */
+ if (vep->bus_type != V4L2_MBUS_BT656 &&
+ vep->bus_type != V4L2_MBUS_PARALLEL)
+ return 0;
+
+ rk_asd->mbus.flags = bus->flags;
+ rk_asd->mbus.type = vep->bus_type;
+
+ return 0;
+}
+
+static const struct v4l2_async_notifier_operations subdev_notifier_ops = {
+ .bound = subdev_notifier_bound,
+ .complete = subdev_notifier_complete,
+};
+
+static int isp_subdev_notifier(struct rkisp1_device *isp_dev)
+{
+ struct v4l2_async_notifier *ntf = &isp_dev->notifier;
+ struct device *dev = isp_dev->dev;
+ int ret;
+
+ ret = v4l2_async_notifier_parse_fwnode_endpoints(
+ dev, ntf, sizeof(struct rkisp1_async_subdev),
+ rkisp1_fwnode_parse);
+ if (ret < 0)
+ return ret;
+
+ if (!ntf->num_subdevs)
+ return -ENODEV; /* no endpoint */
+
+ ntf->ops = &subdev_notifier_ops;
+
+ return v4l2_async_notifier_register(&isp_dev->v4l2_dev, ntf);
+}
+
+/***************************** platform deive *******************************/
+
+static int rkisp1_register_platform_subdevs(struct rkisp1_device *dev)
+{
+ int ret;
+
+ ret = rkisp1_register_isp_subdev(dev, &dev->v4l2_dev);
+ if (ret < 0)
+ return ret;
+
+ ret = rkisp1_register_stream_vdevs(dev);
+ if (ret < 0)
+ goto err_unreg_isp_subdev;
+
+ ret = rkisp1_register_stats_vdev(&dev->stats_vdev, &dev->v4l2_dev, dev);
+ if (ret < 0)
+ goto err_unreg_stream_vdev;
+
+ ret = rkisp1_register_params_vdev(&dev->params_vdev, &dev->v4l2_dev,
+ dev);
+ if (ret < 0)
+ goto err_unreg_stats_vdev;
+
+ ret = isp_subdev_notifier(dev);
+ if (ret < 0) {
+ v4l2_err(&dev->v4l2_dev,
+ "Failed to register subdev notifier(%d)\n", ret);
+ goto err_unreg_params_vdev;
+ }
+
+ return 0;
+err_unreg_params_vdev:
+ rkisp1_unregister_params_vdev(&dev->params_vdev);
+err_unreg_stats_vdev:
+ rkisp1_unregister_stats_vdev(&dev->stats_vdev);
+err_unreg_stream_vdev:
+ rkisp1_unregister_stream_vdevs(dev);
+err_unreg_isp_subdev:
+ rkisp1_unregister_isp_subdev(dev);
+ return ret;
+}
+
+static const char * const rk3399_isp_clks[] = {
+ "clk_isp",
+ "aclk_isp",
+ "hclk_isp",
+ "aclk_isp_wrap",
+ "hclk_isp_wrap",
+};
+
+static const char * const rk3288_isp_clks[] = {
+ "clk_isp",
+ "aclk_isp",
+ "hclk_isp",
+ "pclk_isp_in",
+ "sclk_isp_jpe",
+};
+
+static const struct isp_match_data rk3288_isp_clk_data = {
+ .clks = rk3288_isp_clks,
+ .size = ARRAY_SIZE(rk3288_isp_clks),
+};
+
+static const struct isp_match_data rk3399_isp_clk_data = {
+ .clks = rk3399_isp_clks,
+ .size = ARRAY_SIZE(rk3399_isp_clks),
+};
+
+static const struct of_device_id rkisp1_plat_of_match[] = {
+ {
+ .compatible = "rockchip,rk3288-cif-isp",
+ .data = &rk3288_isp_clk_data,
+ }, {
+ .compatible = "rockchip,rk3399-cif-isp",
+ .data = &rk3399_isp_clk_data,
+ },
+ {},
+};
+
+static irqreturn_t rkisp1_irq_handler(int irq, void *ctx)
+{
+ struct device *dev = ctx;
+ struct rkisp1_device *rkisp1_dev = dev_get_drvdata(dev);
+ void __iomem *base = rkisp1_dev->base_addr;
+ unsigned int mis_val, i;
+
+ mis_val = readl(rkisp1_dev->base_addr + CIF_ISP_MIS);
+ if (mis_val)
+ rkisp1_isp_isr(mis_val, rkisp1_dev);
+
+ mis_val = readl(rkisp1_dev->base_addr + CIF_MIPI_MIS);
+ if (mis_val)
+ rkisp1_mipi_isr(mis_val, rkisp1_dev);
+
+ for (i = 0; i < RKISP1_MAX_STREAM; ++i) {
+ struct rkisp1_stream *stream = &rkisp1_dev->stream[i];
+
+ if (stream->ops->is_frame_end_int_masked(base))
+ rkisp1_mi_isr(stream);
+ }
+
+ return IRQ_HANDLED;
+}
+
+static void rkisp1_disable_sys_clk(struct rkisp1_device *rkisp1_dev)
+{
+ int i;
+
+ for (i = rkisp1_dev->clk_size - 1; i >= 0; i--)
+ clk_disable_unprepare(rkisp1_dev->clks[i]);
+}
+
+static int rkisp1_enable_sys_clk(struct rkisp1_device *rkisp1_dev)
+{
+ int i, ret = -EINVAL;
+
+ for (i = 0; i < rkisp1_dev->clk_size; i++) {
+ ret = clk_prepare_enable(rkisp1_dev->clks[i]);
+ if (ret < 0)
+ goto err;
+ }
+ return 0;
+err:
+ for (--i; i >= 0; --i)
+ clk_disable_unprepare(rkisp1_dev->clks[i]);
+ return ret;
+}
+
+static int rkisp1_plat_probe(struct platform_device *pdev)
+{
+ const struct of_device_id *match;
+ struct device_node *node = pdev->dev.of_node;
+ struct device *dev = &pdev->dev;
+ struct v4l2_device *v4l2_dev;
+ struct rkisp1_device *isp_dev;
+ const struct isp_match_data *clk_data;
+
+ struct resource *res;
+ int i, ret, irq;
+
+ match = of_match_node(rkisp1_plat_of_match, node);
+ isp_dev = devm_kzalloc(dev, sizeof(*isp_dev), GFP_KERNEL);
+ if (!isp_dev)
+ return -ENOMEM;
+
+ dev_set_drvdata(dev, isp_dev);
+ isp_dev->dev = dev;
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ isp_dev->base_addr = devm_ioremap_resource(dev, res);
+ if (IS_ERR(isp_dev->base_addr))
+ return PTR_ERR(isp_dev->base_addr);
+
+ irq = platform_get_irq(pdev, 0);
+ if (irq < 0)
+ return irq;
+
+ ret = devm_request_irq(dev, irq, rkisp1_irq_handler, IRQF_SHARED,
+ dev_driver_string(dev), dev);
+ if (ret < 0) {
+ dev_err(dev, "request irq failed: %d\n", ret);
+ return ret;
+ }
+
+ isp_dev->irq = irq;
+ clk_data = match->data;
+ for (i = 0; i < clk_data->size; i++) {
+ struct clk *clk = devm_clk_get(dev, clk_data->clks[i]);
+
+ if (IS_ERR(clk)) {
+ dev_err(dev, "failed to get %s\n", clk_data->clks[i]);
+ return PTR_ERR(clk);
+ }
+ isp_dev->clks[i] = clk;
+ }
+ isp_dev->clk_size = clk_data->size;
+
+ atomic_set(&isp_dev->pipe.power_cnt, 0);
+ atomic_set(&isp_dev->pipe.stream_cnt, 0);
+ isp_dev->pipe.open = rkisp1_pipeline_open;
+ isp_dev->pipe.close = rkisp1_pipeline_close;
+ isp_dev->pipe.set_stream = rkisp1_pipeline_set_stream;
+
+ rkisp1_stream_init(isp_dev, RKISP1_STREAM_SP);
+ rkisp1_stream_init(isp_dev, RKISP1_STREAM_MP);
+
+ strlcpy(isp_dev->media_dev.model, "rkisp1",
+ sizeof(isp_dev->media_dev.model));
+ isp_dev->media_dev.dev = &pdev->dev;
+ media_device_init(&isp_dev->media_dev);
+
+ v4l2_dev = &isp_dev->v4l2_dev;
+ v4l2_dev->mdev = &isp_dev->media_dev;
+ strlcpy(v4l2_dev->name, "rkisp1", sizeof(v4l2_dev->name));
+ v4l2_ctrl_handler_init(&isp_dev->ctrl_handler, 5);
+ v4l2_dev->ctrl_handler = &isp_dev->ctrl_handler;
+
+ ret = v4l2_device_register(isp_dev->dev, &isp_dev->v4l2_dev);
+ if (ret < 0)
+ return ret;
+
+ ret = media_device_register(&isp_dev->media_dev);
+ if (ret < 0) {
+ v4l2_err(v4l2_dev, "Failed to register media device: %d\n",
+ ret);
+ goto err_unreg_v4l2_dev;
+ }
+
+ /* create & register platefom subdev (from of_node) */
+ ret = rkisp1_register_platform_subdevs(isp_dev);
+ if (ret < 0)
+ goto err_unreg_media_dev;
+
+ pm_runtime_enable(&pdev->dev);
+
+ return 0;
+
+err_unreg_media_dev:
+ media_device_unregister(&isp_dev->media_dev);
+err_unreg_v4l2_dev:
+ v4l2_device_unregister(&isp_dev->v4l2_dev);
+ return ret;
+}
+
+static int rkisp1_plat_remove(struct platform_device *pdev)
+{
+ struct rkisp1_device *isp_dev = platform_get_drvdata(pdev);
+
+ pm_runtime_disable(&pdev->dev);
+ media_device_unregister(&isp_dev->media_dev);
+ v4l2_device_unregister(&isp_dev->v4l2_dev);
+ rkisp1_unregister_params_vdev(&isp_dev->params_vdev);
+ rkisp1_unregister_stats_vdev(&isp_dev->stats_vdev);
+ rkisp1_unregister_stream_vdevs(isp_dev);
+ rkisp1_unregister_isp_subdev(isp_dev);
+
+ return 0;
+}
+
+static int __maybe_unused rkisp1_runtime_suspend(struct device *dev)
+{
+ struct rkisp1_device *isp_dev = dev_get_drvdata(dev);
+
+ rkisp1_disable_sys_clk(isp_dev);
+ return pinctrl_pm_select_sleep_state(dev);
+}
+
+static int __maybe_unused rkisp1_runtime_resume(struct device *dev)
+{
+ struct rkisp1_device *isp_dev = dev_get_drvdata(dev);
+ int ret;
+
+ ret = pinctrl_pm_select_default_state(dev);
+ if (ret < 0)
+ return ret;
+ rkisp1_enable_sys_clk(isp_dev);
+
+ return 0;
+}
+
+static const struct dev_pm_ops rkisp1_plat_pm_ops = {
+ SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
+ pm_runtime_force_resume)
+ SET_RUNTIME_PM_OPS(rkisp1_runtime_suspend, rkisp1_runtime_resume, NULL)
+};
+
+static struct platform_driver rkisp1_plat_drv = {
+ .driver = {
+ .name = DRIVER_NAME,
+ .of_match_table = of_match_ptr(rkisp1_plat_of_match),
+ .pm = &rkisp1_plat_pm_ops,
+ },
+ .probe = rkisp1_plat_probe,
+ .remove = rkisp1_plat_remove,
+};
+
+module_platform_driver(rkisp1_plat_drv);
+MODULE_AUTHOR("Rockchip Camera/ISP team");
+MODULE_DESCRIPTION("Rockchip ISP1 platform driver");
+MODULE_LICENSE("Dual BSD/GPL");
diff --git a/drivers/media/platform/rockchip/isp1/dev.h b/drivers/media/platform/rockchip/isp1/dev.h
new file mode 100644
index 0000000..f28cde3
--- /dev/null
+++ b/drivers/media/platform/rockchip/isp1/dev.h
@@ -0,0 +1,120 @@
+/*
+ * Rockchip isp1 driver
+ *
+ * Copyright (C) 2017 Rockchip Electronics Co., Ltd.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses. You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ * Redistribution and use in source and binary forms, with or
+ * without modification, are permitted provided that the following
+ * conditions are met:
+ *
+ * - Redistributions of source code must retain the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials
+ * provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#ifndef _RKISP1_DEV_H
+#define _RKISP1_DEV_H
+
+#include "capture.h"
+#include "rkisp1.h"
+#include "isp_params.h"
+#include "isp_stats.h"
+
+#define DRIVER_NAME "rkisp1"
+#define ISP_VDEV_NAME DRIVER_NAME "_ispdev"
+#define SP_VDEV_NAME DRIVER_NAME "_selfpath"
+#define MP_VDEV_NAME DRIVER_NAME "_mainpath"
+#define DMA_VDEV_NAME DRIVER_NAME "_dmapath"
+
+#define GRP_ID_SENSOR BIT(0)
+#define GRP_ID_MIPIPHY BIT(1)
+#define GRP_ID_ISP BIT(2)
+#define GRP_ID_ISP_MP BIT(3)
+#define GRP_ID_ISP_SP BIT(4)
+
+#define RKISP1_MAX_BUS_CLK 8
+#define RKISP1_MAX_SENSOR 2
+#define RKISP1_MAX_PIPELINE 4
+
+/*
+ * struct rkisp1_pipeline - An ISP hardware pipeline
+ *
+ * Capture device call other devices via pipeline
+ *
+ * @num_subdevs: number of linked subdevs
+ * @power_cnt: pipeline power count
+ * @stream_cnt: stream power count
+ */
+struct rkisp1_pipeline {
+ struct media_pipeline pipe;
+ int num_subdevs;
+ atomic_t power_cnt;
+ atomic_t stream_cnt;
+ struct v4l2_subdev *subdevs[RKISP1_MAX_PIPELINE];
+ int (*open)(struct rkisp1_pipeline *p,
+ struct media_entity *me, bool prepare);
+ int (*close)(struct rkisp1_pipeline *p);
+ int (*set_stream)(struct rkisp1_pipeline *p, bool on);
+};
+
+/*
+ * struct rkisp1_sensor_info - Sensor infomations
+ * @mbus: media bus configuration
+ */
+struct rkisp1_sensor_info {
+ struct v4l2_subdev *sd;
+ struct v4l2_mbus_config mbus;
+};
+
+/*
+ * struct rkisp1_device - ISP platform device
+ * @base_addr: base register address
+ * @active_sensor: sensor in-use, set when streaming on
+ * @isp_sdev: ISP sub-device
+ * @rkisp1_stream: capture video device
+ * @stats_vdev: ISP statistics output device
+ * @params_vdev: ISP input parameters device
+ */
+struct rkisp1_device {
+ void __iomem *base_addr;
+ int irq;
+ struct device *dev;
+ struct clk *clks[RKISP1_MAX_BUS_CLK];
+ int clk_size;
+ struct v4l2_device v4l2_dev;
+ struct v4l2_ctrl_handler ctrl_handler;
+ struct media_device media_dev;
+ struct v4l2_async_notifier notifier;
+ struct v4l2_subdev *subdevs[RKISP1_SD_MAX];
+ struct rkisp1_sensor_info *active_sensor;
+ struct rkisp1_sensor_info sensors[RKISP1_MAX_SENSOR];
+ int num_sensors;
+ struct rkisp1_isp_subdev isp_sdev;
+ struct rkisp1_stream stream[RKISP1_MAX_STREAM];
+ struct rkisp1_isp_stats_vdev stats_vdev;
+ struct rkisp1_isp_params_vdev params_vdev;
+ struct rkisp1_pipeline pipe;
+ struct vb2_alloc_ctx *alloc_ctx;
+};
+
+#endif
--
1.9.1
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