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- /****************************************************************************
- *
- * The MIT License (MIT)
- *
- * Copyright (c) 2020 VeriSilicon Holdings Co., Ltd.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * 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.
- *
- *****************************************************************************
- *
- * The GPL License (GPL)
- *
- * Copyright (c) 2020 VeriSilicon Holdings Co., Ltd.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program;
- *
- *****************************************************************************
- *
- * Note: This software is released under dual MIT and GPL licenses. A
- * recipient may use this file under the terms of either the MIT license or
- * GPL License. If you wish to use only one license not the other, you can
- * indicate your decision by deleting one of the above license notices in your
- * version of this file.
- *
- *****************************************************************************/
- #include <linux/delay.h>
- #include <linux/clk.h>
- #include <linux/io.h>
- #include <linux/module.h>
- #include <linux/proc_fs.h>
- #include <linux/debugfs.h>
- #include <linux/of_device.h>
- #include <linux/sched_clock.h>
- #include <linux/videodev2.h>
- #include <media/v4l2-ctrls.h>
- #include <media/v4l2-subdev.h>
- #include <media/v4l2-device.h>
- #include <media/v4l2-ioctl.h>
- #include <media/v4l2-event.h>
- #include <media/media-entity.h>
- #include <uapi/linux/media-bus-format.h>
- #include "dw200_driver.h"
- #include "dw200_ioctl.h"
- #define DEVICE_NAME "vvcam-dw200"
- int dw200_subscribe_event(struct v4l2_subdev *sd, struct v4l2_fh *fh,
- struct v4l2_event_subscription *sub)
- {
- return v4l2_event_subscribe(fh, sub, 2, NULL);
- }
- int dw200_unsubscribe_event(struct v4l2_subdev *sd, struct v4l2_fh *fh,
- struct v4l2_event_subscription *sub)
- {
- return v4l2_event_unsubscribe(fh, sub);
- }
- #ifdef CONFIG_COMPAT
- static long dw200_ioctl_compat(struct v4l2_subdev *sd,
- unsigned int cmd, void *arg)
- {
- struct dw200_device *dw200_dev = v4l2_get_subdevdata(sd);
- return dw200_priv_ioctl(&dw200_dev->ic_dev, cmd, arg);
- }
- long dw200_ioctl(struct v4l2_subdev *sd, unsigned int cmd, void *arg)
- {
- return dw200_ioctl_compat(sd, cmd, arg);
- }
- #else /* CONFIG_COMPAT */
- long dw200_ioctl(struct v4l2_subdev *sd, unsigned int cmd, void *arg)
- {
- struct dw200_device *dw200_dev = v4l2_get_subdevdata(sd);
- return dw200_priv_ioctl(&^dw200_dev->ic_dev, cmd, arg);
- }
- #endif /* CONFIG_COMPAT */
- int dw200_set_stream(struct v4l2_subdev *sd, int enable)
- {
- return 0;
- }
- static struct v4l2_subdev_core_ops dw200_v4l2_subdev_core_ops = {
- .ioctl = dw200_ioctl,
- .subscribe_event = dw200_subscribe_event,
- .unsubscribe_event = dw200_unsubscribe_event,
- };
- static struct v4l2_subdev_video_ops dw200_v4l2_subdev_video_ops = {
- .s_stream = dw200_set_stream,
- };
- static struct v4l2_subdev_ops dw200_v4l2_subdev_ops = {
- .core = &dw200_v4l2_subdev_core_ops,
- .video = &dw200_v4l2_subdev_video_ops,
- };
- int dw200_hw_probe(struct platform_device *pdev)
- {
- struct dw200_device *dw200_dev;
- int rc = 0;
- pr_info("enter %s\n", __func__);
- dw200_dev = kzalloc(sizeof(struct dw200_device), GFP_KERNEL);
- if (!dw200_dev) {
- rc = -ENOMEM;
- goto end;
- }
- v4l2_subdev_init(&dw200_dev->sd, &dw200_v4l2_subdev_ops);
- snprintf(dw200_dev->sd.name, sizeof(dw200_dev->sd.name), DEVICE_NAME);
- dw200_dev->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
- dw200_dev->sd.flags |= V4L2_SUBDEV_FL_HAS_EVENTS;
- dw200_dev->sd.owner = THIS_MODULE;
- v4l2_set_subdevdata(&dw200_dev->sd, dw200_dev);
- dw200_dev->vd = kzalloc(sizeof(*dw200_dev->vd), GFP_KERNEL);
- if (WARN_ON(!dw200_dev->vd)) {
- rc = -ENOMEM;
- goto end;
- }
- rc = v4l2_device_register(&(pdev->dev), dw200_dev->vd);
- if (WARN_ON(rc < 0))
- goto end;
- rc = v4l2_device_register_subdev(dw200_dev->vd, &dw200_dev->sd);
- if (rc) {
- pr_err("failed to register subdev %d\n", rc);
- goto end;
- }
- dw200_dev->ic_dev.dwe_base = ioremap(DWE_REG_BASE, DWE_REG_SIZE);
- dw200_dev->ic_dev.vse_base = ioremap(VSE_REG_BASE, VSE_REG_SIZE);
- #ifdef DWE_REG_RESET
- dw200_dev->ic_dev.dwe_reset = ioremap(DWE_REG_RESET, 4);
- #endif
- #ifdef VSE_REG_RESET
- dw200_dev->ic_dev.vse_reset = ioremap(VSE_REG_RESET, 4);
- #endif
- pr_info("dw200 ioremap addr: 0x%08x 0x%08x %px", DWE_REG_BASE,
- DWE_REG_SIZE, dw200_dev->ic_dev.dwe_base);
- platform_set_drvdata(pdev, dw200_dev);
- rc = v4l2_device_register_subdev_nodes(dw200_dev->vd);
- return 0;
- end:
- return rc;
- }
- int dw200_hw_remove(struct platform_device *pdev)
- {
- struct dw200_device *dw200 = platform_get_drvdata(pdev);
- pr_info("enter %s\n", __func__);
- if (!dw200)
- return -EINVAL;
- v4l2_device_unregister_subdev(&dw200->sd);
- v4l2_device_disconnect(dw200->vd);
- v4l2_device_put(dw200->vd);
- iounmap(dw200->ic_dev.dwe_base);
- iounmap(dw200->ic_dev.vse_base);
- #ifdef DWE_REG_RESET
- iounmap(dw200->ic_dev.dwe_reset);
- #endif
- #ifdef VSE_REG_RESET
- iounmap(dw200->ic_dev.vse_reset);
- #endif
- kzfree(dw200);
- return 0;
- }
- static struct platform_driver viv_dw200_driver = {
- .probe = dw200_hw_probe,
- .remove = dw200_hw_remove,
- .driver = {
- .name = DEVICE_NAME,
- .owner = THIS_MODULE,
- }
- };
- static void dw200_pdev_release(struct device *dev)
- {
- pr_info("enter %s\n", __func__);
- }
- static struct platform_device viv_dw200_pdev = {
- .name = DEVICE_NAME,
- .dev.release = dw200_pdev_release,
- };
- static int __init viv_dw200_init_module(void)
- {
- int ret = 0;
- pr_info("enter %s\n", __func__);
- ret = platform_device_register(&viv_dw200_pdev);
- if (ret) {
- pr_err("register platform device failed.\n");
- return ret;
- }
- ret = platform_driver_register(&viv_dw200_driver);
- if (ret) {
- pr_err("register platform driver failed.\n");
- platform_device_unregister(&viv_dw200_pdev);
- return ret;
- }
- return ret;
- }
- static void __exit viv_dw200_exit_module(void)
- {
- pr_info("enter %s\n", __func__);
- platform_driver_unregister(&viv_dw200_driver);
- platform_device_unregister(&viv_dw200_pdev);
- }
- module_init(viv_dw200_init_module);
- module_exit(viv_dw200_exit_module);
- MODULE_AUTHOR("zhiye.yin@verisilicon.com");
- MODULE_LICENSE("GPL");
- MODULE_ALIAS("Dewarp200");
- MODULE_VERSION("1.0");
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