+++ /dev/null
-/*
- * Copyright 2017 NXP
- *
- * 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.
- */
-
-#include <drm/drmP.h>
-#include <drm/imx_drm.h>
-#include <linux/component.h>
-#include <linux/device.h>
-#include <linux/errno.h>
-#include <linux/export.h>
-#include <linux/module.h>
-#include <linux/platform_device.h>
-#include <video/dpu.h>
-
-#include "imx-drm.h"
-
-struct imx_drm_dpu_bliteng {
- struct dpu_bliteng *dpu_be;
- struct list_head list;
-};
-
-static DEFINE_MUTEX(imx_drm_dpu_bliteng_lock);
-static LIST_HEAD(imx_drm_dpu_bliteng_list);
-
-static int imx_dpu_num;
-
-static struct imx_drm_dpu_bliteng *imx_drm_dpu_bliteng_find_by_of_id(s32 id)
-{
- struct imx_drm_dpu_bliteng *bliteng;
-
- mutex_lock(&imx_drm_dpu_bliteng_lock);
-
- list_for_each_entry(bliteng, &imx_drm_dpu_bliteng_list, list) {
- if (id == dpu_bliteng_get_id(bliteng->dpu_be)) {
- mutex_unlock(&imx_drm_dpu_bliteng_lock);
- return bliteng;
- }
- }
-
- mutex_unlock(&imx_drm_dpu_bliteng_lock);
-
- return NULL;
-}
-
-static int imx_drm_dpu_set_cmdlist_ioctl(struct drm_device *drm_dev, void *data,
- struct drm_file *file)
-{
- struct drm_imx_dpu_set_cmdlist *req;
- struct imx_drm_dpu_bliteng *bliteng;
- struct dpu_bliteng *dpu_be;
- u32 cmd_nr, *cmd, *cmd_list;
- void *user_data;
- s32 id = 0;
- int ret;
-
- req = data;
- user_data = (void *)(unsigned long)req->user_data;
- if (copy_from_user(&id, (void __user *)user_data,
- sizeof(id))) {
- return -EFAULT;
- }
-
- if (id != 0 && id != 1)
- return -EINVAL;
-
- bliteng = imx_drm_dpu_bliteng_find_by_of_id(id);
- if (!bliteng) {
- DRM_ERROR("Failed to get dpu_bliteng\n");
- return -ENODEV;
- }
-
- dpu_be = bliteng->dpu_be;
-
-retry:
- ret = dpu_be_get(dpu_be);
- if (ret == -EBUSY)
- goto retry;
-
- cmd_nr = req->cmd_nr;
- cmd = (u32 *)(unsigned long)req->cmd;
- cmd_list = dpu_bliteng_get_cmd_list(dpu_be);
-
- if (copy_from_user(cmd_list, (void __user *)cmd,
- sizeof(*cmd) * cmd_nr)) {
- ret = -EFAULT;
- goto err;
- }
-
- ret = dpu_be_blit(dpu_be, cmd_list, cmd_nr);
-
-err:
- dpu_be_put(dpu_be);
-
- return ret;
-}
-
-static int imx_drm_dpu_wait_ioctl(struct drm_device *drm_dev, void *data,
- struct drm_file *file)
-{
- struct drm_imx_dpu_wait *wait;
- struct imx_drm_dpu_bliteng *bliteng;
- struct dpu_bliteng *dpu_be;
- void *user_data;
- s32 id = 0;
- int ret;
-
- wait = data;
- user_data = (void *)(unsigned long)wait->user_data;
- if (copy_from_user(&id, (void __user *)user_data,
- sizeof(id))) {
- return -EFAULT;
- }
-
- if (id != 0 && id != 1)
- return -EINVAL;
-
- bliteng = imx_drm_dpu_bliteng_find_by_of_id(id);
- if (!bliteng) {
- DRM_ERROR("Failed to get dpu_bliteng\n");
- return -ENODEV;
- }
-
- dpu_be = bliteng->dpu_be;
-
-retry:
- ret = dpu_be_get(dpu_be);
- if (ret == -EBUSY)
- goto retry;
-
- dpu_be_wait(dpu_be);
-
- dpu_be_put(dpu_be);
-
- return ret;
-}
-
-static int imx_drm_dpu_get_param_ioctl(struct drm_device *drm_dev, void *data,
- struct drm_file *file)
-{
- enum drm_imx_dpu_param *param = data;
- int ret;
-
- switch (*param) {
- case (DRM_IMX_MAX_DPUS):
- ret = imx_dpu_num;
- break;
- default:
- ret = -EINVAL;
- DRM_ERROR("Unknown param![%d]\n", *param);
- break;
- }
-
- return ret;
-}
-
-static struct drm_ioctl_desc imx_drm_ioctls[] = {
- DRM_IOCTL_DEF_DRV(IMX_DPU_SET_CMDLIST, imx_drm_dpu_set_cmdlist_ioctl, DRM_RENDER_ALLOW),
- DRM_IOCTL_DEF_DRV(IMX_DPU_WAIT, imx_drm_dpu_wait_ioctl, DRM_RENDER_ALLOW),
- DRM_IOCTL_DEF_DRV(IMX_DPU_GET_PARAM, imx_drm_dpu_get_param_ioctl, DRM_RENDER_ALLOW),
-};
-
-
-static int dpu_bliteng_bind(struct device *dev, struct device *master,
- void *data)
-{
- struct imx_drm_dpu_bliteng *bliteng;
- struct dpu_bliteng *dpu_bliteng = NULL;
- int ret, i;
-
- bliteng = devm_kzalloc(dev, sizeof(*bliteng), GFP_KERNEL);
- if (!bliteng)
- return -ENOMEM;
-
- INIT_LIST_HEAD(&bliteng->list);
-
- ret = dpu_bliteng_get_empty_instance(&dpu_bliteng, dev);
- if (ret)
- return ret;
-
- dpu_bliteng_set_id(dpu_bliteng, imx_dpu_num);
- dpu_bliteng_set_dev(dpu_bliteng, dev);
-
- ret = dpu_bliteng_init(dpu_bliteng);
- if (ret)
- return ret;
-
- mutex_lock(&imx_drm_dpu_bliteng_lock);
- bliteng->dpu_be = dpu_bliteng;
- list_add_tail(&bliteng->list, &imx_drm_dpu_bliteng_list);
- mutex_unlock(&imx_drm_dpu_bliteng_lock);
-
- dev_set_drvdata(dev, dpu_bliteng);
-
- if (imx_dpu_num == 0) {
- for (i = 0; i < ARRAY_SIZE(imx_drm_ioctls); i++) {
- imx_drm_register_ioctl(&imx_drm_ioctls[i]);
- }
- }
- imx_dpu_num++;
-
- return 0;
-}
-
-static void dpu_bliteng_unbind(struct device *dev, struct device *master,
- void *data)
-{
- struct imx_drm_dpu_bliteng *bliteng;
- struct dpu_bliteng *dpu_bliteng = dev_get_drvdata(dev);
- s32 id = dpu_bliteng_get_id(dpu_bliteng);
- int i;
-
- bliteng = imx_drm_dpu_bliteng_find_by_of_id(id);
- list_del(&bliteng->list);
- devm_kfree(dev, bliteng);
-
- dpu_bliteng_fini(dpu_bliteng);
- devm_kfree(dev, dpu_bliteng);
-
- imx_dpu_num--;
-
- if (imx_dpu_num == 0) {
- for (i = 0; i < ARRAY_SIZE(imx_drm_ioctls); i++) {
- imx_drm_unregister_ioctl(&imx_drm_ioctls[i]);
- }
- }
-}
-
-static const struct component_ops dpu_bliteng_ops = {
- .bind = dpu_bliteng_bind,
- .unbind = dpu_bliteng_unbind,
-};
-
-static int dpu_bliteng_probe(struct platform_device *pdev)
-{
- struct device *dev = &pdev->dev;
-
- if (!dev->platform_data)
- return -EINVAL;
-
- return component_add(dev, &dpu_bliteng_ops);
-}
-
-static int dpu_bliteng_remove(struct platform_device *pdev)
-{
- component_del(&pdev->dev, &dpu_bliteng_ops);
- return 0;
-}
-
-struct platform_driver dpu_bliteng_driver = {
- .driver = {
- .name = "imx-drm-dpu-bliteng",
- },
- .probe = dpu_bliteng_probe,
- .remove = dpu_bliteng_remove,
-};
-
-module_platform_driver(dpu_bliteng_driver);
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("NXP Semiconductor");
-MODULE_DESCRIPTION("i.MX DRM DPU BLITENG");
#include <drm/drm_fb_cma_helper.h>
#include <drm/drm_plane_helper.h>
#include <drm/drm_of.h>
-#include <drm/imx_drm.h>
#include <video/imx-ipu-v3.h>
#include <video/dpu.h>
struct imx_drm_crtc_helper_funcs imx_drm_helper_funcs;
};
-struct {
- struct mutex mutex;
- struct list_head ioctls;
-} imx_ioctls = {
- .mutex = __MUTEX_INITIALIZER(imx_ioctls.mutex),
- .ioctls = LIST_HEAD_INIT(imx_ioctls.ioctls),
-};
-
#if IS_ENABLED(CONFIG_DRM_FBDEV_EMULATION)
static int legacyfb_depth = 16;
module_param(legacyfb_depth, int, 0444);
imx_drm_crtc->imx_drm_helper_funcs.disable_vblank(imx_drm_crtc->crtc);
}
-static long
-imx_drm_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
-{
- struct drm_file *file_priv = NULL;
- struct drm_device *dev = NULL;
-
-#define MAX_DATA_STACK 128
- char data[MAX_DATA_STACK];
- unsigned int in_size;
- struct imx_drm_ioctl *pos;
-
- file_priv = filp->private_data;
- if (!file_priv) {
- return -EFAULT;
- }
-
- dev = file_priv->minor->dev;
- if (!dev) {
- return -EFAULT;
- }
-
- in_size = _IOC_SIZE(cmd);
- if (copy_from_user(data, (void __user *) arg, in_size) != 0) {
- return -EFAULT;
- }
-
- list_for_each_entry(pos, &imx_ioctls.ioctls, next) {
- if (pos->ioctl->cmd == cmd) {
- long ret;
- mutex_lock(&imx_ioctls.mutex);
- ret = pos->ioctl->func(dev, data, file_priv);
- mutex_unlock(&imx_ioctls.mutex);
- return ret;
- }
- }
-
-
- return drm_ioctl(filp, cmd, arg);
-}
-
static const struct file_operations imx_drm_driver_fops = {
.owner = THIS_MODULE,
.open = drm_open,
.release = drm_release,
- .unlocked_ioctl = imx_drm_ioctl,
+ .unlocked_ioctl = drm_ioctl,
.mmap = drm_gem_cma_mmap,
.poll = drm_poll,
.read = drm_read,
}
EXPORT_SYMBOL_GPL(imx_drm_encoder_parse_of);
-int
-imx_drm_register_ioctl(struct drm_ioctl_desc *ioctl_desc)
-{
- struct imx_drm_ioctl *__ioctl = kzalloc(sizeof(*__ioctl), GFP_KERNEL);
-
- if (!__ioctl)
- return -EFAULT;
-
- __ioctl->ioctl = ioctl_desc;
- INIT_LIST_HEAD(&__ioctl->next);
-
- mutex_lock(&imx_ioctls.mutex);
- list_add_tail(&__ioctl->next, &imx_ioctls.ioctls);
- mutex_unlock(&imx_ioctls.mutex);
-
- return 0;
-}
-EXPORT_SYMBOL_GPL(imx_drm_register_ioctl);
-
-int
-imx_drm_unregister_ioctl(struct drm_ioctl_desc *ioctl_desc)
-{
- int err = -ENOENT;
- struct imx_drm_ioctl *pos;
-
- mutex_lock(&imx_ioctls.mutex);
- list_for_each_entry(pos, &imx_ioctls.ioctls, next) {
- if (pos->ioctl->cmd == ioctl_desc->cmd) {
- list_del(&pos->next);
- kfree(pos);
- err = 0;
- break;
- }
- }
- mutex_unlock(&imx_ioctls.mutex);
-
- return err;
-}
-EXPORT_SYMBOL_GPL(imx_drm_unregister_ioctl);
-
-
static const struct drm_ioctl_desc imx_drm_ioctls[] = {
/* none so far */
};
-EXPORT_SYMBOL_GPL(imx_drm_ioctls);
-
static struct drm_driver imx_drm_driver = {
.driver_features = DRIVER_MODESET | DRIVER_GEM | DRIVER_PRIME |
- DRIVER_ATOMIC | DRIVER_RENDER,
+ DRIVER_ATOMIC,
.lastclose = imx_drm_driver_lastclose,
.gem_free_object_unlocked = drm_gem_cma_free_object,
.gem_vm_ops = &drm_gem_cma_vm_ops,
+++ /dev/null
-/*
- * Copyright 2017 NXP
- *
- * 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. If not, see <http://www.gnu.org/licenses/>.
- */
-
-#ifndef _UAPI_IMX_DRM_H_
-#define _UAPI_IMX_DRM_H_
-
-#include "drm.h"
-
-#if defined(__cplusplus)
-extern "C" {
-#endif
-
-#define DRM_IMX_DPU_SET_CMDLIST 0x00
-#define DRM_IMX_DPU_WAIT 0x01
-#define DRM_IMX_DPU_GET_PARAM 0x02
-
-#define DRM_IOCTL_IMX_DPU_SET_CMDLIST DRM_IOWR(DRM_COMMAND_BASE + \
- DRM_IMX_DPU_SET_CMDLIST, struct drm_imx_dpu_set_cmdlist)
-#define DRM_IOCTL_IMX_DPU_WAIT DRM_IOWR(DRM_COMMAND_BASE + \
- DRM_IMX_DPU_WAIT, struct drm_imx_dpu_wait)
-#define DRM_IOCTL_IMX_DPU_GET_PARAM DRM_IOWR(DRM_COMMAND_BASE + \
- DRM_IMX_DPU_GET_PARAM, enum drm_imx_dpu_param)
-
-/**
- * struct drm_imx_dpu_set_cmdlist - ioctl argument for
- * DRM_IMX_DPU_SET_CMDLIST.
- */
-struct drm_imx_dpu_set_cmdlist {
- __u64 cmd;
- __u32 cmd_nr;
-
- /* reserverd */
- __u64 user_data;
-};
-
-/**
- * struct drm_imx_dpu_wait - ioctl argument for
- * DRM_IMX_DPU_WAIT.
- *
- */
-struct drm_imx_dpu_wait {
- /* reserverd */
- __u64 user_data;
-};
-
-/**
- * enum drm_imx_dpu_param - ioctl argument for
- * DRM_IMX_DPU_GET_PARAM.
- *
- */
-enum drm_imx_dpu_param {
- DRM_IMX_MAX_DPUS,
-};
-
-#if defined(__cplusplus)
-}
-#endif
-
-#endif /* _UAPI_IMX_DRM_H_ */
projects / linux.git / commitdiff