From 1543e317f1da31b75942316931e8f491a8920811 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Thu, 04 Jan 2024 10:08:02 +0000
Subject: [PATCH] disable FB
---
kernel/drivers/gpu/drm/udl/udl_drv.h | 99 +++++++++++--------------------------------------
1 files changed, 23 insertions(+), 76 deletions(-)
diff --git a/kernel/drivers/gpu/drm/udl/udl_drv.h b/kernel/drivers/gpu/drm/udl/udl_drv.h
index 35c1f33..8aab148 100644
--- a/kernel/drivers/gpu/drm/udl/udl_drv.h
+++ b/kernel/drivers/gpu/drm/udl/udl_drv.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Copyright (C) 2012 Red Hat
*
@@ -5,18 +6,20 @@
* Copyright (C) 2009 Roberto De Ioris <roberto@unbit.it>
* Copyright (C) 2009 Jaya Kumar <jayakumar.lkml@gmail.com>
* Copyright (C) 2009 Bernie Thompson <bernie@plugable.com>
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License v2. See the file COPYING in the main directory of this archive for
- * more details.
*/
#ifndef UDL_DRV_H
#define UDL_DRV_H
-#include <linux/usb.h>
-#include <drm/drm_gem.h>
#include <linux/mm_types.h>
+#include <linux/usb.h>
+
+#include <drm/drm_device.h>
+#include <drm/drm_framebuffer.h>
+#include <drm/drm_gem.h>
+#include <drm/drm_simple_kms_helper.h>
+
+struct drm_mode_create_dumb;
#define DRIVER_NAME "udl"
#define DRIVER_DESC "DisplayLink"
@@ -25,9 +28,6 @@
#define DRIVER_MAJOR 0
#define DRIVER_MINOR 0
#define DRIVER_PATCHLEVEL 1
-
-#define UDL_BO_CACHEABLE (1 << 0)
-#define UDL_BO_WC (1 << 1)
struct udl_device;
@@ -47,57 +47,29 @@
size_t size;
};
-struct udl_fbdev;
-
struct udl_device {
struct drm_device drm;
struct device *dev;
+ struct device *dmadev;
struct usb_device *udev;
- struct drm_crtc *crtc;
+
+ struct drm_simple_display_pipe display_pipe;
struct mutex gem_lock;
int sku_pixel_limit;
struct urb_list urbs;
- atomic_t lost_pixels; /* 1 = a render op failed. Need screen refresh */
- struct udl_fbdev *fbdev;
char mode_buf[1024];
uint32_t mode_buf_len;
- atomic_t bytes_rendered; /* raw pixel-bytes driver asked to render */
- atomic_t bytes_identical; /* saved effort with backbuffer comparison */
- atomic_t bytes_sent; /* to usb, after compression including overhead */
- atomic_t cpu_kcycles_used; /* transpired during pixel processing */
};
#define to_udl(x) container_of(x, struct udl_device, drm)
-struct udl_gem_object {
- struct drm_gem_object base;
- struct page **pages;
- void *vmapping;
- struct sg_table *sg;
- unsigned int flags;
-};
-
-#define to_udl_bo(x) container_of(x, struct udl_gem_object, base)
-
-struct udl_framebuffer {
- struct drm_framebuffer base;
- struct udl_gem_object *obj;
- bool active_16; /* active on the 16-bit channel */
-};
-
-#define to_udl_fb(x) container_of(x, struct udl_framebuffer, base)
-
/* modeset */
int udl_modeset_init(struct drm_device *dev);
-void udl_modeset_restore(struct drm_device *dev);
-void udl_modeset_cleanup(struct drm_device *dev);
-int udl_connector_init(struct drm_device *dev, struct drm_encoder *encoder);
-
-struct drm_encoder *udl_encoder_init(struct drm_device *dev);
+struct drm_connector *udl_connector_init(struct drm_device *dev);
struct urb *udl_get_urb(struct drm_device *dev);
@@ -105,44 +77,10 @@
void udl_urb_completion(struct urb *urb);
int udl_init(struct udl_device *udl);
-void udl_fini(struct drm_device *dev);
-
-int udl_fbdev_init(struct drm_device *dev);
-void udl_fbdev_cleanup(struct drm_device *dev);
-void udl_fbdev_unplug(struct drm_device *dev);
-struct drm_framebuffer *
-udl_fb_user_fb_create(struct drm_device *dev,
- struct drm_file *file,
- const struct drm_mode_fb_cmd2 *mode_cmd);
int udl_render_hline(struct drm_device *dev, int log_bpp, struct urb **urb_ptr,
const char *front, char **urb_buf_ptr,
- u32 byte_offset, u32 device_byte_offset, u32 byte_width,
- int *ident_ptr, int *sent_ptr);
-
-int udl_dumb_create(struct drm_file *file_priv,
- struct drm_device *dev,
- struct drm_mode_create_dumb *args);
-int udl_gem_mmap(struct drm_file *file_priv, struct drm_device *dev,
- uint32_t handle, uint64_t *offset);
-
-void udl_gem_free_object(struct drm_gem_object *gem_obj);
-struct udl_gem_object *udl_gem_alloc_object(struct drm_device *dev,
- size_t size);
-struct dma_buf *udl_gem_prime_export(struct drm_device *dev,
- struct drm_gem_object *obj, int flags);
-struct drm_gem_object *udl_gem_prime_import(struct drm_device *dev,
- struct dma_buf *dma_buf);
-
-int udl_gem_get_pages(struct udl_gem_object *obj);
-void udl_gem_put_pages(struct udl_gem_object *obj);
-int udl_gem_vmap(struct udl_gem_object *obj);
-void udl_gem_vunmap(struct udl_gem_object *obj);
-int udl_drm_gem_mmap(struct file *filp, struct vm_area_struct *vma);
-vm_fault_t udl_gem_fault(struct vm_fault *vmf);
-
-int udl_handle_damage(struct udl_framebuffer *fb, int x, int y,
- int width, int height);
+ u32 byte_offset, u32 device_byte_offset, u32 byte_width);
int udl_drop_usb(struct drm_device *dev);
@@ -156,4 +94,13 @@
#define CMD_WRITE_COPY16 "\xAF\x6A" /**< 16 bit copy command. */
#define CMD_WRITE_RLX16 "\xAF\x6B" /**< 16 bit extended run length command. */
+/* On/Off for driving the DisplayLink framebuffer to the display */
+#define UDL_REG_BLANK_MODE 0x1f
+
+#define UDL_BLANK_MODE_ON 0x00 /* hsync and vsync on, visible */
+#define UDL_BLANK_MODE_BLANKED 0x01 /* hsync and vsync on, blanked */
+#define UDL_BLANK_MODE_VSYNC_OFF 0x03 /* vsync off, blanked */
+#define UDL_BLANK_MODE_HSYNC_OFF 0x05 /* hsync off, blanked */
+#define UDL_BLANK_MODE_POWERDOWN 0x07 /* powered off; requires modeset */
+
#endif
--
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