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path: root/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c
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Diffstat (limited to 'drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c')
-rw-r--r--drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c577
1 files changed, 577 insertions, 0 deletions
diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c b/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c
new file mode 100644
index 000000000000..68da1eed753d
--- /dev/null
+++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c
@@ -0,0 +1,577 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Rockchip ISP1 Driver - Base driver
+ *
+ * Copyright (C) 2019 Collabora, Ltd.
+ *
+ * Based on Rockchip ISP1 driver by Rockchip Electronics Co., Ltd.
+ * Copyright (C) 2017 Rockchip Electronics Co., Ltd.
+ */
+
+#include <linux/clk.h>
+#include <linux/debugfs.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/pinctrl/consumer.h>
+#include <linux/phy/phy.h>
+#include <linux/phy/phy-mipi-dphy.h>
+#include <media/v4l2-fwnode.h>
+
+#include "rkisp1-common.h"
+
+/*
+ * ISP Details
+ * -----------
+ *
+ * ISP Comprises with:
+ * MIPI serial camera interface
+ * Image Signal Processing
+ * Many Image Enhancement Blocks
+ * Crop
+ * Resizer
+ * RBG display ready image
+ * Image Rotation
+ *
+ * ISP Block Diagram
+ * -----------------
+ * rkisp1-resizer.c rkisp1-capture.c
+ * |====================| |=======================|
+ * rkisp1-isp.c Main Picture Path
+ * |==========================| |===============================================|
+ * +-----------+ +--+--+--+--+ +--------+ +--------+ +-----------+
+ * | | | | | | | | | | | | |
+ * +--------+ |\ | | | | | | | -->| Crop |->| RSZ |------------->| |
+ * | MIPI |--->| \ | | | | | | | | | | | | | |
+ * +--------+ | | | | |IE|IE|IE|IE| | +--------+ +--------+ | Memory |
+ * |MUX|--->| ISP |->|0 |1 |2 |3 |---+ | Interface |
+ * +--------+ | | | | | | | | | | +--------+ +--------+ +--------+ | |
+ * |Parallel|--->| / | | | | | | | | | | | | | | | |
+ * +--------+ |/ | | | | | | | -->| Crop |->| RSZ |->| RGB |->| |
+ * | | | | | | | | | | | | Rotate | | |
+ * +-----------+ +--+--+--+--+ +--------+ +--------+ +--------+ +-----------+
+ * ^
+ * +--------+ | |===============================================|
+ * | DMA |------------------------------------+ Self Picture Path
+ * +--------+
+ *
+ * rkisp1-stats.c rkisp1-params.c
+ * |===============| |===============|
+ * +---------------+ +---------------+
+ * | | | |
+ * | ISP | | ISP |
+ * | | | |
+ * +---------------+ +---------------+
+ *
+ *
+ * Media Topology
+ * --------------
+ * +----------+ +----------+
+ * | Sensor 2 | | Sensor X |
+ * ------------ ... ------------
+ * | 0 | | 0 |
+ * +----------+ +----------+ +-----------+
+ * \ | | params |
+ * \ | | (output) |
+ * +----------+ \ | +-----------+
+ * | Sensor 1 | v v |
+ * ------------ +------+------+ |
+ * | 0 |----->| 0 | 1 |<---------+
+ * +----------+ |------+------|
+ * | ISP |
+ * |------+------|
+ * +-------------| 2 | 3 |----------+
+ * | +------+------+ |
+ * | | |
+ * v v v
+ * +- ---------+ +-----------+ +-----------+
+ * | 0 | | 0 | | stats |
+ * ------------- ------------- | (capture) |
+ * | Resizer | | Resizer | +-----------+
+ * ------------| ------------|
+ * | 1 | | 1 |
+ * +-----------+ +-----------+
+ * | |
+ * v v
+ * +-----------+ +-----------+
+ * | selfpath | | mainpath |
+ * | (capture) | | (capture) |
+ * +-----------+ +-----------+
+ */
+
+struct rkisp1_match_data {
+ const char * const *clks;
+ unsigned int size;
+};
+
+/* ----------------------------------------------------------------------------
+ * Sensor DT bindings
+ */
+
+static int rkisp1_create_links(struct rkisp1_device *rkisp1)
+{
+ struct media_entity *source, *sink;
+ unsigned int flags, source_pad;
+ struct v4l2_subdev *sd;
+ unsigned int i;
+ int ret;
+
+ /* sensor links */
+ flags = MEDIA_LNK_FL_ENABLED;
+ list_for_each_entry(sd, &rkisp1->v4l2_dev.subdevs, list) {
+ if (sd == &rkisp1->isp.sd ||
+ sd == &rkisp1->resizer_devs[RKISP1_MAINPATH].sd ||
+ sd == &rkisp1->resizer_devs[RKISP1_SELFPATH].sd)
+ continue;
+
+ ret = media_entity_get_fwnode_pad(&sd->entity, sd->fwnode,
+ MEDIA_PAD_FL_SOURCE);
+ if (ret < 0) {
+ dev_err(rkisp1->dev, "failed to find src pad for %s\n",
+ sd->name);
+ return ret;
+ }
+ source_pad = ret;
+
+ ret = media_create_pad_link(&sd->entity, source_pad,
+ &rkisp1->isp.sd.entity,
+ RKISP1_ISP_PAD_SINK_VIDEO,
+ flags);
+ if (ret)
+ return ret;
+
+ flags = 0;
+ }
+
+ flags = MEDIA_LNK_FL_ENABLED | MEDIA_LNK_FL_IMMUTABLE;
+
+ /* create ISP->RSZ->CAP links */
+ for (i = 0; i < 2; i++) {
+ source = &rkisp1->isp.sd.entity;
+ sink = &rkisp1->resizer_devs[i].sd.entity;
+ ret = media_create_pad_link(source, RKISP1_ISP_PAD_SOURCE_VIDEO,
+ sink, RKISP1_RSZ_PAD_SINK,
+ MEDIA_LNK_FL_ENABLED);
+ if (ret)
+ return ret;
+
+ source = sink;
+ sink = &rkisp1->capture_devs[i].vnode.vdev.entity;
+ ret = media_create_pad_link(source, RKISP1_RSZ_PAD_SRC,
+ sink, 0, flags);
+ if (ret)
+ return ret;
+ }
+
+ /* params links */
+ source = &rkisp1->params.vnode.vdev.entity;
+ sink = &rkisp1->isp.sd.entity;
+ ret = media_create_pad_link(source, 0, sink,
+ RKISP1_ISP_PAD_SINK_PARAMS, flags);
+ if (ret)
+ return ret;
+
+ /* 3A stats links */
+ source = &rkisp1->isp.sd.entity;
+ sink = &rkisp1->stats.vnode.vdev.entity;
+ return media_create_pad_link(source, RKISP1_ISP_PAD_SOURCE_STATS,
+ sink, 0, flags);
+}
+
+static int rkisp1_subdev_notifier_bound(struct v4l2_async_notifier *notifier,
+ struct v4l2_subdev *sd,
+ struct v4l2_async_subdev *asd)
+{
+ struct rkisp1_device *rkisp1 =
+ container_of(notifier, struct rkisp1_device, notifier);
+ struct rkisp1_sensor_async *s_asd =
+ container_of(asd, struct rkisp1_sensor_async, asd);
+
+ s_asd->pixel_rate_ctrl = v4l2_ctrl_find(sd->ctrl_handler,
+ V4L2_CID_PIXEL_RATE);
+ s_asd->sd = sd;
+ s_asd->dphy = devm_phy_get(rkisp1->dev, "dphy");
+ if (IS_ERR(s_asd->dphy)) {
+ if (PTR_ERR(s_asd->dphy) != -EPROBE_DEFER)
+ dev_err(rkisp1->dev, "Couldn't get the MIPI D-PHY\n");
+ return PTR_ERR(s_asd->dphy);
+ }
+
+ phy_init(s_asd->dphy);
+
+ return 0;
+}
+
+static void rkisp1_subdev_notifier_unbind(struct v4l2_async_notifier *notifier,
+ struct v4l2_subdev *sd,
+ struct v4l2_async_subdev *asd)
+{
+ struct rkisp1_sensor_async *s_asd =
+ container_of(asd, struct rkisp1_sensor_async, asd);
+
+ phy_exit(s_asd->dphy);
+}
+
+static int rkisp1_subdev_notifier_complete(struct v4l2_async_notifier *notifier)
+{
+ struct rkisp1_device *rkisp1 =
+ container_of(notifier, struct rkisp1_device, notifier);
+ int ret;
+
+ ret = rkisp1_create_links(rkisp1);
+ if (ret)
+ return ret;
+
+ ret = v4l2_device_register_subdev_nodes(&rkisp1->v4l2_dev);
+ if (ret)
+ return ret;
+
+ dev_dbg(rkisp1->dev, "Async subdev notifier completed\n");
+
+ return 0;
+}
+
+static const struct v4l2_async_notifier_operations rkisp1_subdev_notifier_ops = {
+ .bound = rkisp1_subdev_notifier_bound,
+ .unbind = rkisp1_subdev_notifier_unbind,
+ .complete = rkisp1_subdev_notifier_complete,
+};
+
+static int rkisp1_subdev_notifier(struct rkisp1_device *rkisp1)
+{
+ struct v4l2_async_notifier *ntf = &rkisp1->notifier;
+ unsigned int next_id = 0;
+ int ret;
+
+ v4l2_async_notifier_init(ntf);
+
+ while (1) {
+ struct v4l2_fwnode_endpoint vep = {
+ .bus_type = V4L2_MBUS_CSI2_DPHY
+ };
+ struct rkisp1_sensor_async *rk_asd = NULL;
+ struct fwnode_handle *ep;
+
+ ep = fwnode_graph_get_endpoint_by_id(dev_fwnode(rkisp1->dev),
+ 0, next_id,
+ FWNODE_GRAPH_ENDPOINT_NEXT);
+ if (!ep)
+ break;
+
+ ret = v4l2_fwnode_endpoint_parse(ep, &vep);
+ if (ret)
+ goto err_parse;
+
+ rk_asd = kzalloc(sizeof(*rk_asd), GFP_KERNEL);
+ if (!rk_asd) {
+ ret = -ENOMEM;
+ goto err_parse;
+ }
+
+ rk_asd->mbus_type = vep.bus_type;
+ rk_asd->mbus_flags = vep.bus.mipi_csi2.flags;
+ rk_asd->lanes = vep.bus.mipi_csi2.num_data_lanes;
+
+ ret = v4l2_async_notifier_add_fwnode_remote_subdev(ntf, ep,
+ &rk_asd->asd);
+ if (ret)
+ goto err_parse;
+
+ dev_dbg(rkisp1->dev, "registered ep id %d with %d lanes\n",
+ vep.base.id, rk_asd->lanes);
+
+ next_id = vep.base.id + 1;
+
+ fwnode_handle_put(ep);
+
+ continue;
+err_parse:
+ fwnode_handle_put(ep);
+ kfree(rk_asd);
+ v4l2_async_notifier_cleanup(ntf);
+ return ret;
+ }
+
+ if (next_id == 0)
+ dev_dbg(rkisp1->dev, "no remote subdevice found\n");
+ ntf->ops = &rkisp1_subdev_notifier_ops;
+ ret = v4l2_async_notifier_register(&rkisp1->v4l2_dev, ntf);
+ if (ret) {
+ v4l2_async_notifier_cleanup(ntf);
+ return ret;
+ }
+ return 0;
+}
+
+/* ----------------------------------------------------------------------------
+ * Power
+ */
+
+static int __maybe_unused rkisp1_runtime_suspend(struct device *dev)
+{
+ struct rkisp1_device *rkisp1 = dev_get_drvdata(dev);
+
+ clk_bulk_disable_unprepare(rkisp1->clk_size, rkisp1->clks);
+ return pinctrl_pm_select_sleep_state(dev);
+}
+
+static int __maybe_unused rkisp1_runtime_resume(struct device *dev)
+{
+ struct rkisp1_device *rkisp1 = dev_get_drvdata(dev);
+ int ret;
+
+ ret = pinctrl_pm_select_default_state(dev);
+ if (ret)
+ return ret;
+ ret = clk_bulk_prepare_enable(rkisp1->clk_size, rkisp1->clks);
+ if (ret)
+ return ret;
+
+ return 0;
+}
+
+static const struct dev_pm_ops rkisp1_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)
+};
+
+/* ----------------------------------------------------------------------------
+ * Core
+ */
+
+static int rkisp1_entities_register(struct rkisp1_device *rkisp1)
+{
+ int ret;
+
+ ret = rkisp1_isp_register(rkisp1);
+ if (ret)
+ return ret;
+
+ ret = rkisp1_resizer_devs_register(rkisp1);
+ if (ret)
+ goto err_unreg_isp_subdev;
+
+ ret = rkisp1_capture_devs_register(rkisp1);
+ if (ret)
+ goto err_unreg_resizer_devs;
+
+ ret = rkisp1_stats_register(rkisp1);
+ if (ret)
+ goto err_unreg_capture_devs;
+
+ ret = rkisp1_params_register(rkisp1);
+ if (ret)
+ goto err_unreg_stats;
+
+ ret = rkisp1_subdev_notifier(rkisp1);
+ if (ret) {
+ dev_err(rkisp1->dev,
+ "Failed to register subdev notifier(%d)\n", ret);
+ goto err_unreg_params;
+ }
+
+ return 0;
+err_unreg_params:
+ rkisp1_params_unregister(rkisp1);
+err_unreg_stats:
+ rkisp1_stats_unregister(rkisp1);
+err_unreg_capture_devs:
+ rkisp1_capture_devs_unregister(rkisp1);
+err_unreg_resizer_devs:
+ rkisp1_resizer_devs_unregister(rkisp1);
+err_unreg_isp_subdev:
+ rkisp1_isp_unregister(rkisp1);
+ return ret;
+}
+
+static irqreturn_t rkisp1_isr(int irq, void *ctx)
+{
+ struct device *dev = ctx;
+ struct rkisp1_device *rkisp1 = dev_get_drvdata(dev);
+
+ /*
+ * Call rkisp1_capture_isr() first to handle the frame that
+ * potentially completed using the current frame_sequence number before
+ * it is potentially incremented by rkisp1_isp_isr() in the vertical
+ * sync.
+ */
+ rkisp1_capture_isr(rkisp1);
+ rkisp1_isp_isr(rkisp1);
+ rkisp1_mipi_isr(rkisp1);
+
+ return IRQ_HANDLED;
+}
+
+static const char * const rk3399_isp_clks[] = {
+ "isp",
+ "aclk",
+ "hclk",
+};
+
+static const struct rkisp1_match_data rk3399_isp_clk_data = {
+ .clks = rk3399_isp_clks,
+ .size = ARRAY_SIZE(rk3399_isp_clks),
+};
+
+static const struct of_device_id rkisp1_of_match[] = {
+ {
+ .compatible = "rockchip,rk3399-cif-isp",
+ .data = &rk3399_isp_clk_data,
+ },
+ {},
+};
+MODULE_DEVICE_TABLE(of, rkisp1_of_match);
+
+static void rkisp1_debug_init(struct rkisp1_device *rkisp1)
+{
+ struct rkisp1_debug *debug = &rkisp1->debug;
+
+ debug->debugfs_dir = debugfs_create_dir(RKISP1_DRIVER_NAME, NULL);
+ debugfs_create_ulong("data_loss", 0444, debug->debugfs_dir,
+ &debug->data_loss);
+ debugfs_create_ulong("outform_size_err", 0444, debug->debugfs_dir,
+ &debug->outform_size_error);
+ debugfs_create_ulong("img_stabilization_size_error", 0444,
+ debug->debugfs_dir,
+ &debug->img_stabilization_size_error);
+ debugfs_create_ulong("inform_size_error", 0444, debug->debugfs_dir,
+ &debug->inform_size_error);
+ debugfs_create_ulong("irq_delay", 0444, debug->debugfs_dir,
+ &debug->irq_delay);
+ debugfs_create_ulong("mipi_error", 0444, debug->debugfs_dir,
+ &debug->mipi_error);
+ debugfs_create_ulong("stats_error", 0444, debug->debugfs_dir,
+ &debug->stats_error);
+ debugfs_create_ulong("mp_stop_timeout", 0444, debug->debugfs_dir,
+ &debug->stop_timeout[RKISP1_MAINPATH]);
+ debugfs_create_ulong("sp_stop_timeout", 0444, debug->debugfs_dir,
+ &debug->stop_timeout[RKISP1_SELFPATH]);
+ debugfs_create_ulong("mp_frame_drop", 0444, debug->debugfs_dir,
+ &debug->frame_drop[RKISP1_MAINPATH]);
+ debugfs_create_ulong("sp_frame_drop", 0444, debug->debugfs_dir,
+ &debug->frame_drop[RKISP1_SELFPATH]);
+}
+
+static int rkisp1_probe(struct platform_device *pdev)
+{
+ const struct rkisp1_match_data *clk_data;
+ struct device *dev = &pdev->dev;
+ struct rkisp1_device *rkisp1;
+ struct v4l2_device *v4l2_dev;
+ unsigned int i;
+ int ret, irq;
+
+ clk_data = of_device_get_match_data(&pdev->dev);
+ if (!clk_data)
+ return -ENODEV;
+
+ rkisp1 = devm_kzalloc(dev, sizeof(*rkisp1), GFP_KERNEL);
+ if (!rkisp1)
+ return -ENOMEM;
+
+ dev_set_drvdata(dev, rkisp1);
+ rkisp1->dev = dev;
+
+ mutex_init(&rkisp1->stream_lock);
+
+ rkisp1->base_addr = devm_platform_ioremap_resource(pdev, 0);
+ if (IS_ERR(rkisp1->base_addr))
+ return PTR_ERR(rkisp1->base_addr);
+
+ irq = platform_get_irq(pdev, 0);
+ if (irq < 0)
+ return irq;
+
+ ret = devm_request_irq(dev, irq, rkisp1_isr, IRQF_SHARED,
+ dev_driver_string(dev), dev);
+ if (ret) {
+ dev_err(dev, "request irq failed: %d\n", ret);
+ return ret;
+ }
+
+ rkisp1->irq = irq;
+
+ for (i = 0; i < clk_data->size; i++)
+ rkisp1->clks[i].id = clk_data->clks[i];
+ ret = devm_clk_bulk_get(dev, clk_data->size, rkisp1->clks);
+ if (ret)
+ return ret;
+ rkisp1->clk_size = clk_data->size;
+
+ pm_runtime_enable(&pdev->dev);
+
+ strscpy(rkisp1->media_dev.model, RKISP1_DRIVER_NAME,
+ sizeof(rkisp1->media_dev.model));
+ rkisp1->media_dev.dev = &pdev->dev;
+ strscpy(rkisp1->media_dev.bus_info, RKISP1_BUS_INFO,
+ sizeof(rkisp1->media_dev.bus_info));
+ media_device_init(&rkisp1->media_dev);
+
+ v4l2_dev = &rkisp1->v4l2_dev;
+ v4l2_dev->mdev = &rkisp1->media_dev;
+ strscpy(v4l2_dev->name, RKISP1_DRIVER_NAME, sizeof(v4l2_dev->name));
+
+ ret = v4l2_device_register(rkisp1->dev, &rkisp1->v4l2_dev);
+ if (ret)
+ return ret;
+
+ ret = media_device_register(&rkisp1->media_dev);
+ if (ret) {
+ dev_err(dev, "Failed to register media device: %d\n", ret);
+ goto err_unreg_v4l2_dev;
+ }
+
+ ret = rkisp1_entities_register(rkisp1);
+ if (ret)
+ goto err_unreg_media_dev;
+
+ rkisp1_debug_init(rkisp1);
+
+ return 0;
+
+err_unreg_media_dev:
+ media_device_unregister(&rkisp1->media_dev);
+err_unreg_v4l2_dev:
+ v4l2_device_unregister(&rkisp1->v4l2_dev);
+ pm_runtime_disable(&pdev->dev);
+ return ret;
+}
+
+static int rkisp1_remove(struct platform_device *pdev)
+{
+ struct rkisp1_device *rkisp1 = platform_get_drvdata(pdev);
+
+ v4l2_async_notifier_unregister(&rkisp1->notifier);
+ v4l2_async_notifier_cleanup(&rkisp1->notifier);
+
+ rkisp1_params_unregister(rkisp1);
+ rkisp1_stats_unregister(rkisp1);
+ rkisp1_capture_devs_unregister(rkisp1);
+ rkisp1_resizer_devs_unregister(rkisp1);
+ rkisp1_isp_unregister(rkisp1);
+
+ media_device_unregister(&rkisp1->media_dev);
+ v4l2_device_unregister(&rkisp1->v4l2_dev);
+
+ pm_runtime_disable(&pdev->dev);
+
+ debugfs_remove_recursive(rkisp1->debug.debugfs_dir);
+ return 0;
+}
+
+static struct platform_driver rkisp1_drv = {
+ .driver = {
+ .name = RKISP1_DRIVER_NAME,
+ .of_match_table = of_match_ptr(rkisp1_of_match),
+ .pm = &rkisp1_pm_ops,
+ },
+ .probe = rkisp1_probe,
+ .remove = rkisp1_remove,
+};
+
+module_platform_driver(rkisp1_drv);
+MODULE_DESCRIPTION("Rockchip ISP1 platform driver");
+MODULE_LICENSE("Dual MIT/GPL");
generated by cgit v1.2.3 (git 2.39.0) at 2024-11-24 11:20:35 +0300