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2023-12-06 08f87f769b595151be1afeff53e144f543faa614 
 kernel/drivers/gpu/drm/udl/udl_drv.h
....@@ -1,3 +1,4 @@
1
+/* SPDX-License-Identifier: GPL-2.0-only */
12 /*
23  * Copyright (C) 2012 Red Hat
34  *
....@@ -5,18 +6,20 @@
56  * Copyright (C) 2009 Roberto De Ioris <roberto@unbit.it>
67  * Copyright (C) 2009 Jaya Kumar <jayakumar.lkml@gmail.com>
78  * Copyright (C) 2009 Bernie Thompson <bernie@plugable.com>
8
- *
9
- * This file is subject to the terms and conditions of the GNU General Public
10
- * License v2. See the file COPYING in the main directory of this archive for
11
- * more details.
129  */
1310 
1411 #ifndef UDL_DRV_H
1512 #define UDL_DRV_H
1613 
17
-#include <linux/usb.h>
18
-#include <drm/drm_gem.h>
1914 #include <linux/mm_types.h>
15
+#include <linux/usb.h>
16
+
17
+#include <drm/drm_device.h>
18
+#include <drm/drm_framebuffer.h>
19
+#include <drm/drm_gem.h>
20
+#include <drm/drm_simple_kms_helper.h>
21
+
22
+struct drm_mode_create_dumb;
2023 
2124 #define DRIVER_NAME		"udl"
2225 #define DRIVER_DESC		"DisplayLink"
....@@ -25,9 +28,6 @@
2528 #define DRIVER_MAJOR		0
2629 #define DRIVER_MINOR		0
2730 #define DRIVER_PATCHLEVEL	1
28
-
29
-#define UDL_BO_CACHEABLE		(1 << 0)
30
-#define UDL_BO_WC		(1 << 1)
3131 
3232 struct udl_device;
3333 
....@@ -47,57 +47,29 @@
4747 	size_t size;
4848 };
4949 
50
-struct udl_fbdev;
51
-
5250 struct udl_device {
5351 	struct drm_device drm;
5452 	struct device *dev;
53
+	struct device *dmadev;
5554 	struct usb_device *udev;
56
-	struct drm_crtc *crtc;
55
+
56
+	struct drm_simple_display_pipe display_pipe;
5757 
5858 	struct mutex gem_lock;
5959 
6060 	int sku_pixel_limit;
6161 
6262 	struct urb_list urbs;
63
-	atomic_t lost_pixels; /* 1 = a render op failed. Need screen refresh */
6463 
65
-	struct udl_fbdev *fbdev;
6664 	char mode_buf[1024];
6765 	uint32_t mode_buf_len;
68
-	atomic_t bytes_rendered; /* raw pixel-bytes driver asked to render */
69
-	atomic_t bytes_identical; /* saved effort with backbuffer comparison */
70
-	atomic_t bytes_sent; /* to usb, after compression including overhead */
71
-	atomic_t cpu_kcycles_used; /* transpired during pixel processing */
7266 };
7367 
7468 #define to_udl(x) container_of(x, struct udl_device, drm)
7569 
76
-struct udl_gem_object {
77
-	struct drm_gem_object base;
78
-	struct page **pages;
79
-	void *vmapping;
80
-	struct sg_table *sg;
81
-	unsigned int flags;
82
-};
83
-
84
-#define to_udl_bo(x) container_of(x, struct udl_gem_object, base)
85
-
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-struct udl_framebuffer {
87
-	struct drm_framebuffer base;
88
-	struct udl_gem_object *obj;
89
-	bool active_16; /* active on the 16-bit channel */
90
-};
91
-
92
-#define to_udl_fb(x) container_of(x, struct udl_framebuffer, base)
93
-
9470 /* modeset */
9571 int udl_modeset_init(struct drm_device *dev);
96
-void udl_modeset_restore(struct drm_device *dev);
97
-void udl_modeset_cleanup(struct drm_device *dev);
98
-int udl_connector_init(struct drm_device *dev, struct drm_encoder *encoder);
99
-
100
-struct drm_encoder *udl_encoder_init(struct drm_device *dev);
72
+struct drm_connector *udl_connector_init(struct drm_device *dev);
10173 
10274 struct urb *udl_get_urb(struct drm_device *dev);
10375 
....@@ -105,44 +77,10 @@
10577 void udl_urb_completion(struct urb *urb);
10678 
10779 int udl_init(struct udl_device *udl);
108
-void udl_fini(struct drm_device *dev);
109
-
110
-int udl_fbdev_init(struct drm_device *dev);
111
-void udl_fbdev_cleanup(struct drm_device *dev);
112
-void udl_fbdev_unplug(struct drm_device *dev);
113
-struct drm_framebuffer *
114
-udl_fb_user_fb_create(struct drm_device *dev,
115
-		      struct drm_file *file,
116
-		      const struct drm_mode_fb_cmd2 *mode_cmd);
11780 
11881 int udl_render_hline(struct drm_device *dev, int log_bpp, struct urb **urb_ptr,
11982 		     const char *front, char **urb_buf_ptr,
120
-		     u32 byte_offset, u32 device_byte_offset, u32 byte_width,
121
-		     int *ident_ptr, int *sent_ptr);
122
-
123
-int udl_dumb_create(struct drm_file *file_priv,
124
-		    struct drm_device *dev,
125
-		    struct drm_mode_create_dumb *args);
126
-int udl_gem_mmap(struct drm_file *file_priv, struct drm_device *dev,
127
-		 uint32_t handle, uint64_t *offset);
128
-
129
-void udl_gem_free_object(struct drm_gem_object *gem_obj);
130
-struct udl_gem_object *udl_gem_alloc_object(struct drm_device *dev,
131
-					    size_t size);
132
-struct dma_buf *udl_gem_prime_export(struct drm_device *dev,
133
-				     struct drm_gem_object *obj, int flags);
134
-struct drm_gem_object *udl_gem_prime_import(struct drm_device *dev,
135
-				struct dma_buf *dma_buf);
136
-
137
-int udl_gem_get_pages(struct udl_gem_object *obj);
138
-void udl_gem_put_pages(struct udl_gem_object *obj);
139
-int udl_gem_vmap(struct udl_gem_object *obj);
140
-void udl_gem_vunmap(struct udl_gem_object *obj);
141
-int udl_drm_gem_mmap(struct file *filp, struct vm_area_struct *vma);
142
-vm_fault_t udl_gem_fault(struct vm_fault *vmf);
143
-
144
-int udl_handle_damage(struct udl_framebuffer *fb, int x, int y,
145
-		      int width, int height);
83
+		     u32 byte_offset, u32 device_byte_offset, u32 byte_width);
14684 
14785 int udl_drop_usb(struct drm_device *dev);
14886 
....@@ -156,4 +94,13 @@
15694 #define CMD_WRITE_COPY16 "\xAF\x6A" /**< 16 bit copy command. */
15795 #define CMD_WRITE_RLX16  "\xAF\x6B" /**< 16 bit extended run length command. */
15896 
97
+/* On/Off for driving the DisplayLink framebuffer to the display */
98
+#define UDL_REG_BLANK_MODE		0x1f
99
+
100
+#define UDL_BLANK_MODE_ON		0x00 /* hsync and vsync on, visible */
101
+#define UDL_BLANK_MODE_BLANKED		0x01 /* hsync and vsync on, blanked */
102
+#define UDL_BLANK_MODE_VSYNC_OFF	0x03 /* vsync off, blanked */
103
+#define UDL_BLANK_MODE_HSYNC_OFF	0x05 /* hsync off, blanked */
104
+#define UDL_BLANK_MODE_POWERDOWN	0x07 /* powered off; requires modeset */
105
+
159106 #endif