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-rw-r--r--drivers/staging/Kconfig2
-rw-r--r--drivers/staging/Makefile1
-rw-r--r--drivers/staging/udlfb/Kconfig14
-rw-r--r--drivers/staging/udlfb/Makefile1
-rw-r--r--drivers/staging/udlfb/udlfb.h117
-rw-r--r--drivers/staging/udlfb/udlfb.txt144
-rw-r--r--drivers/video/Kconfig14
-rw-r--r--drivers/video/Makefile1
-rw-r--r--drivers/video/udlfb.c (renamed from drivers/staging/udlfb/udlfb.c)135
9 files changed, 64 insertions, 365 deletions
diff --git a/drivers/staging/Kconfig b/drivers/staging/Kconfig
index 5eafdf435550..df31a7228079 100644
--- a/drivers/staging/Kconfig
+++ b/drivers/staging/Kconfig
@@ -111,8 +111,6 @@ source "drivers/staging/vt6655/Kconfig"
111 111
112source "drivers/staging/vt6656/Kconfig" 112source "drivers/staging/vt6656/Kconfig"
113 113
114source "drivers/staging/udlfb/Kconfig"
115
116source "drivers/staging/hv/Kconfig" 114source "drivers/staging/hv/Kconfig"
117 115
118source "drivers/staging/vme/Kconfig" 116source "drivers/staging/vme/Kconfig"
diff --git a/drivers/staging/Makefile b/drivers/staging/Makefile
index a97a955c094b..7a15c0c82b69 100644
--- a/drivers/staging/Makefile
+++ b/drivers/staging/Makefile
@@ -38,7 +38,6 @@ obj-$(CONFIG_USB_SERIAL_QUATECH_USB2) += quatech_usb2/
38obj-$(CONFIG_OCTEON_ETHERNET) += octeon/ 38obj-$(CONFIG_OCTEON_ETHERNET) += octeon/
39obj-$(CONFIG_VT6655) += vt6655/ 39obj-$(CONFIG_VT6655) += vt6655/
40obj-$(CONFIG_VT6656) += vt6656/ 40obj-$(CONFIG_VT6656) += vt6656/
41obj-$(CONFIG_FB_UDL) += udlfb/
42obj-$(CONFIG_HYPERV) += hv/ 41obj-$(CONFIG_HYPERV) += hv/
43obj-$(CONFIG_VME_BUS) += vme/ 42obj-$(CONFIG_VME_BUS) += vme/
44obj-$(CONFIG_MRST_RAR_HANDLER) += memrar/ 43obj-$(CONFIG_MRST_RAR_HANDLER) += memrar/
diff --git a/drivers/staging/udlfb/Kconfig b/drivers/staging/udlfb/Kconfig
deleted file mode 100644
index 65bd5db4ca56..000000000000
--- a/drivers/staging/udlfb/Kconfig
+++ /dev/null
@@ -1,14 +0,0 @@
1config FB_UDL
2 tristate "Displaylink USB Framebuffer support"
3 depends on FB && USB
4 select FB_MODE_HELPERS
5 select FB_SYS_FILLRECT
6 select FB_SYS_COPYAREA
7 select FB_SYS_IMAGEBLIT
8 select FB_SYS_FOPS
9 select FB_DEFERRED_IO
10 ---help---
11 This is a kernel framebuffer driver for DisplayLink USB devices.
12 Supports fbdev clients like xf86-video-fbdev, kdrive, fbi, and
13 mplayer -vo fbdev. Supports all USB 2.0 era DisplayLink devices.
14 To compile as a module, choose M here: the module name is udlfb.
diff --git a/drivers/staging/udlfb/Makefile b/drivers/staging/udlfb/Makefile
deleted file mode 100644
index 30d9e675b10f..000000000000
--- a/drivers/staging/udlfb/Makefile
+++ /dev/null
@@ -1 +0,0 @@
1obj-$(CONFIG_FB_UDL) += udlfb.o
diff --git a/drivers/staging/udlfb/udlfb.h b/drivers/staging/udlfb/udlfb.h
deleted file mode 100644
index 6f9785e9d62e..000000000000
--- a/drivers/staging/udlfb/udlfb.h
+++ /dev/null
@@ -1,117 +0,0 @@
1#ifndef UDLFB_H
2#define UDLFB_H
3
4/*
5 * TODO: Propose standard fb.h ioctl for reporting damage,
6 * using _IOWR() and one of the existing area structs from fb.h
7 * Consider these ioctls deprecated, but they're still used by the
8 * DisplayLink X server as yet - need both to be modified in tandem
9 * when new ioctl(s) are ready.
10 */
11#define DLFB_IOCTL_RETURN_EDID 0xAD
12#define DLFB_IOCTL_REPORT_DAMAGE 0xAA
13struct dloarea {
14 int x, y;
15 int w, h;
16 int x2, y2;
17};
18
19struct urb_node {
20 struct list_head entry;
21 struct dlfb_data *dev;
22 struct delayed_work release_urb_work;
23 struct urb *urb;
24};
25
26struct urb_list {
27 struct list_head list;
28 spinlock_t lock;
29 struct semaphore limit_sem;
30 int available;
31 int count;
32 size_t size;
33};
34
35struct dlfb_data {
36 struct usb_device *udev;
37 struct device *gdev; /* &udev->dev */
38 struct fb_info *info;
39 struct urb_list urbs;
40 struct kref kref;
41 char *backing_buffer;
42 int fb_count;
43 bool virtualized; /* true when physical usb device not present */
44 struct delayed_work free_framebuffer_work;
45 atomic_t usb_active; /* 0 = update virtual buffer, but no usb traffic */
46 atomic_t lost_pixels; /* 1 = a render op failed. Need screen refresh */
47 char *edid; /* null until we read edid from hw or get from sysfs */
48 size_t edid_size;
49 int sku_pixel_limit;
50 int base16;
51 int base8;
52 u32 pseudo_palette[256];
53 /* blit-only rendering path metrics, exposed through sysfs */
54 atomic_t bytes_rendered; /* raw pixel-bytes driver asked to render */
55 atomic_t bytes_identical; /* saved effort with backbuffer comparison */
56 atomic_t bytes_sent; /* to usb, after compression including overhead */
57 atomic_t cpu_kcycles_used; /* transpired during pixel processing */
58};
59
60#define NR_USB_REQUEST_I2C_SUB_IO 0x02
61#define NR_USB_REQUEST_CHANNEL 0x12
62
63/* -BULK_SIZE as per usb-skeleton. Can we get full page and avoid overhead? */
64#define BULK_SIZE 512
65#define MAX_TRANSFER (PAGE_SIZE*16 - BULK_SIZE)
66#define WRITES_IN_FLIGHT (4)
67
68#define MIN_EDID_SIZE 128
69#define MAX_EDID_SIZE 128
70
71#define MAX_VENDOR_DESCRIPTOR_SIZE 256
72
73#define GET_URB_TIMEOUT HZ
74#define FREE_URB_TIMEOUT (HZ*2)
75
76#define BPP 2
77#define MAX_CMD_PIXELS 255
78
79#define RLX_HEADER_BYTES 7
80#define MIN_RLX_PIX_BYTES 4
81#define MIN_RLX_CMD_BYTES (RLX_HEADER_BYTES + MIN_RLX_PIX_BYTES)
82
83#define RLE_HEADER_BYTES 6
84#define MIN_RLE_PIX_BYTES 3
85#define MIN_RLE_CMD_BYTES (RLE_HEADER_BYTES + MIN_RLE_PIX_BYTES)
86
87#define RAW_HEADER_BYTES 6
88#define MIN_RAW_PIX_BYTES 2
89#define MIN_RAW_CMD_BYTES (RAW_HEADER_BYTES + MIN_RAW_PIX_BYTES)
90
91#define DL_DEFIO_WRITE_DELAY 5 /* fb_deferred_io.delay in jiffies */
92#define DL_DEFIO_WRITE_DISABLE (HZ*60) /* "disable" with long delay */
93
94/* remove these once align.h patch is taken into kernel */
95#define DL_ALIGN_UP(x, a) ALIGN(x, a)
96#define DL_ALIGN_DOWN(x, a) ALIGN(x-(a-1), a)
97
98/* remove once this gets added to sysfs.h */
99#define __ATTR_RW(attr) __ATTR(attr, 0644, attr##_show, attr##_store)
100
101/*
102 * udlfb is both a usb device, and a framebuffer device.
103 * They may exist at the same time, but during various stages
104 * inactivity, teardown, or "virtual" operation, only one or the
105 * other will exist (one will outlive the other). So we can't
106 * call the dev_*() macros, because we don't have a stable dev object.
107 */
108#define dl_err(format, arg...) \
109 pr_err("udlfb: " format, ## arg)
110#define dl_warn(format, arg...) \
111 pr_warning("udlfb: " format, ## arg)
112#define dl_notice(format, arg...) \
113 pr_notice("udlfb: " format, ## arg)
114#define dl_info(format, arg...) \
115 pr_info("udlfb: " format, ## arg)
116
117#endif
diff --git a/drivers/staging/udlfb/udlfb.txt b/drivers/staging/udlfb/udlfb.txt
deleted file mode 100644
index 7fdde2a02a27..000000000000
--- a/drivers/staging/udlfb/udlfb.txt
+++ /dev/null
@@ -1,144 +0,0 @@
1
2What is udlfb?
3===============
4
5This is a driver for DisplayLink USB 2.0 era graphics chips.
6
7DisplayLink chips provide simple hline/blit operations with some compression,
8pairing that with a hardware framebuffer (16MB) on the other end of the
9USB wire. That hardware framebuffer is able to drive the VGA, DVI, or HDMI
10monitor with no CPU involvement until a pixel has to change.
11
12The CPU or other local resource does all the rendering; optinally compares the
13result with a local shadow of the remote hardware framebuffer to identify
14the minimal set of pixels that have changed; and compresses and sends those
15pixels line-by-line via USB bulk transfers.
16
17Because of the efficiency of bulk transfers and a protocol on top that
18does not require any acks - the effect is very low latency that
19can support surprisingly high resolutions with good performance for
20non-gaming and non-video applications.
21
22Mode setting, EDID read, etc are other bulk or control transfers. Mode
23setting is very flexible - able to set nearly arbitrary modes from any timing.
24
25Advantages of USB graphics in general:
26
27 * Ability to add a nearly arbitrary number of displays to any USB 2.0
28 capable system. On Linux, number of displays is limited by fbdev interface
29 (FB_MAX is currently 32). Of course, all USB devices on the same
30 host controller share the same 480Mbs USB 2.0 interface.
31
32Advantages of supporting DisplayLink chips with kernel framebuffer interface:
33
34 * The actual hardware functionality of DisplayLink chips matches nearly
35 one-to-one with the fbdev interface, making the driver quite small and
36 tight relative to the functionality it provides.
37 * X servers and other applications can use the standard fbdev interface
38 from user mode to talk to the device, without needing to know anything
39 about USB or DisplayLink's protocol at all. A "displaylink" X driver
40 and a slightly modified "fbdev" X driver are among those that already do.
41
42Disadvantages:
43
44 * Fbdev's mmap interface assumes a real hardware framebuffer is mapped.
45 In the case of USB graphics, it is just an allocated (virtual) buffer.
46 Writes need to be detected and encoded into USB bulk transfers by the CPU.
47 Accurate damage/changed area notifications work around this problem.
48 In the future, hopefully fbdev will be enhanced with an small standard
49 interface to allow mmap clients to report damage, for the benefit
50 of virtual or remote framebuffers.
51 * Fbdev does not arbitrate client ownership of the framebuffer well.
52 * Fbcon assumes the first framebuffer it finds should be consumed for console.
53 * It's not clear what the future of fbdev is, given the rise of KMS/DRM.
54
55How to use it?
56==============
57
58Udlfb, when loaded as a module, will match against all USB 2.0 generation
59DisplayLink chips (Alex and Ollie family). It will then attempt to read the EDID
60of the monitor, and set the best common mode between the DisplayLink device
61and the monitor's capabilities.
62
63If the DisplayLink device is successful, it will paint a "green screen" which
64means that from a hardware and fbdev software perspective, everything is good.
65
66At that point, a /dev/fb? interface will be present for user-mode applications
67to open and begin writing to the framebuffer of the DisplayLink device using
68standard fbdev calls. Note that if mmap() is used, by default the user mode
69application must send down damage notifcations to trigger repaints of the
70changed regions. Alternatively, udlfb can be recompiled with experimental
71defio support enabled, to support a page-fault based detection mechanism
72that can work without explicit notifcation.
73
74The most common client of udlfb is xf86-video-displaylink or a modified
75xf86-video-fbdev X server. These servers have no real DisplayLink specific
76code. They write to the standard framebuffer interface and rely on udlfb
77to do its thing. The one extra feature they have is the ability to report
78rectangles from the X DAMAGE protocol extension down to udlfb via udlfb's
79damage interface (which will hopefully be standardized for all virtual
80framebuffers that need damage info). These damage notifications allow
81udlfb to efficiently process the changed pixels.
82
83Module Options
84==============
85
86Special configuration for udlfb is usually unnecessary. There are a few
87options, however.
88
89From the command line, pass options to modprobe
90modprobe udlfb defio=1 console=1
91
92Or for permanent option, create file like /etc/modprobe.d/options with text
93options udlfb defio=1 console=1
94
95Accepted options:
96
97fb_defio Make use of the fb_defio (CONFIG_FB_DEFERRED_IO) kernel
98 module to track changed areas of the framebuffer by page faults.
99 Standard fbdev applications that use mmap but that do not
100 report damage, may be able to work with this enabled.
101 Disabled by default because of overhead and other issues.
102
103console Allow fbcon to attach to udlfb provided framebuffers. This
104 is disabled by default because fbcon will aggressively consume
105 the first framebuffer it finds, which isn't usually what the
106 user wants in the case of USB displays.
107
108Sysfs Attributes
109================
110
111Udlfb creates several files in /sys/class/graphics/fb?
112Where ? is the sequential framebuffer id of the particular DisplayLink device
113
114edid If a valid EDID blob is written to this file (typically
115 by a udev rule), then udlfb will use this EDID as a
116 backup in case reading the actual EDID of the monitor
117 attached to the DisplayLink device fails. This is
118 especially useful for fixed panels, etc. that cannot
119 communicate their capabilities via EDID. Reading
120 this file returns the current EDID of the attached
121 monitor (or last backup value written). This is
122 useful to get the EDID of the attached monitor,
123 which can be passed to utilities like parse-edid.
124
125metrics_bytes_rendered 32-bit count of pixel bytes rendered
126
127metrics_bytes_identical 32-bit count of how many of those bytes were found to be
128 unchanged, based on a shadow framebuffer check
129
130metrics_bytes_sent 32-bit count of how many bytes were transferred over
131 USB to communicate the resulting changed pixels to the
132 hardware. Includes compression and protocol overhead
133
134metrics_cpu_kcycles_used 32-bit count of CPU cycles used in processing the
135 above pixels (in thousands of cycles).
136
137metrics_reset Write-only. Any write to this file resets all metrics
138 above to zero. Note that the 32-bit counters above
139 roll over very quickly. To get reliable results, design
140 performance tests to start and finish in a very short
141 period of time (one minute or less is safe).
142
143--
144Bernie Thompson <bernie@plugable.com>
diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig
index fdddf58bdaf5..9f36a29b10b4 100644
--- a/drivers/video/Kconfig
+++ b/drivers/video/Kconfig
@@ -2116,6 +2116,20 @@ config FB_SM501
2116 2116
2117 If unsure, say N. 2117 If unsure, say N.
2118 2118
2119config FB_UDL
2120 tristate "Displaylink USB Framebuffer support"
2121 depends on FB && USB
2122 select FB_MODE_HELPERS
2123 select FB_SYS_FILLRECT
2124 select FB_SYS_COPYAREA
2125 select FB_SYS_IMAGEBLIT
2126 select FB_SYS_FOPS
2127 select FB_DEFERRED_IO
2128 ---help---
2129 This is a kernel framebuffer driver for DisplayLink USB devices.
2130 Supports fbdev clients like xf86-video-fbdev, kdrive, fbi, and
2131 mplayer -vo fbdev. Supports all USB 2.0 era DisplayLink devices.
2132 To compile as a module, choose M here: the module name is udlfb.
2119 2133
2120config FB_PNX4008_DUM 2134config FB_PNX4008_DUM
2121 tristate "Display Update Module support on Philips PNX4008 board" 2135 tristate "Display Update Module support on Philips PNX4008 board"
diff --git a/drivers/video/Makefile b/drivers/video/Makefile
index bdf626419433..f9de51c39ad7 100644
--- a/drivers/video/Makefile
+++ b/drivers/video/Makefile
@@ -125,6 +125,7 @@ obj-$(CONFIG_FB_PNX4008_DUM_RGB) += pnx4008/
125obj-$(CONFIG_FB_IBM_GXT4500) += gxt4500.o 125obj-$(CONFIG_FB_IBM_GXT4500) += gxt4500.o
126obj-$(CONFIG_FB_PS3) += ps3fb.o 126obj-$(CONFIG_FB_PS3) += ps3fb.o
127obj-$(CONFIG_FB_SM501) += sm501fb.o 127obj-$(CONFIG_FB_SM501) += sm501fb.o
128obj-$(CONFIG_FB_UDL) += udlfb.o
128obj-$(CONFIG_FB_XILINX) += xilinxfb.o 129obj-$(CONFIG_FB_XILINX) += xilinxfb.o
129obj-$(CONFIG_SH_MIPI_DSI) += sh_mipi_dsi.o 130obj-$(CONFIG_SH_MIPI_DSI) += sh_mipi_dsi.o
130obj-$(CONFIG_FB_SH_MOBILE_HDMI) += sh_mobile_hdmi.o 131obj-$(CONFIG_FB_SH_MOBILE_HDMI) += sh_mobile_hdmi.o
diff --git a/drivers/staging/udlfb/udlfb.c b/drivers/video/udlfb.c
index b7ac16005265..020589a6bf02 100644
--- a/drivers/staging/udlfb/udlfb.c
+++ b/drivers/video/udlfb.c
@@ -16,6 +16,8 @@
16 * from Florian Echtler, Henrik Bjerregaard Pedersen, and others. 16 * from Florian Echtler, Henrik Bjerregaard Pedersen, and others.
17 */ 17 */
18 18
19#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
20
19#include <linux/module.h> 21#include <linux/module.h>
20#include <linux/kernel.h> 22#include <linux/kernel.h>
21#include <linux/init.h> 23#include <linux/init.h>
@@ -26,8 +28,8 @@
26#include <linux/vmalloc.h> 28#include <linux/vmalloc.h>
27#include <linux/slab.h> 29#include <linux/slab.h>
28#include <linux/delay.h> 30#include <linux/delay.h>
29 31#include <video/udlfb.h>
30#include "udlfb.h" 32#include "edid.h"
31 33
32static struct fb_fix_screeninfo dlfb_fix = { 34static struct fb_fix_screeninfo dlfb_fix = {
33 .id = "udlfb", 35 .id = "udlfb",
@@ -40,9 +42,7 @@ static struct fb_fix_screeninfo dlfb_fix = {
40}; 42};
41 43
42static const u32 udlfb_info_flags = FBINFO_DEFAULT | FBINFO_READS_FAST | 44static const u32 udlfb_info_flags = FBINFO_DEFAULT | FBINFO_READS_FAST |
43#ifdef FBINFO_VIRTFB
44 FBINFO_VIRTFB | 45 FBINFO_VIRTFB |
45#endif
46 FBINFO_HWACCEL_IMAGEBLIT | FBINFO_HWACCEL_FILLRECT | 46 FBINFO_HWACCEL_IMAGEBLIT | FBINFO_HWACCEL_FILLRECT |
47 FBINFO_HWACCEL_COPYAREA | FBINFO_MISC_ALWAYS_SETPAR; 47 FBINFO_HWACCEL_COPYAREA | FBINFO_MISC_ALWAYS_SETPAR;
48 48
@@ -293,7 +293,7 @@ static int dlfb_ops_mmap(struct fb_info *info, struct vm_area_struct *vma)
293 293
294 pos = (unsigned long)info->fix.smem_start + offset; 294 pos = (unsigned long)info->fix.smem_start + offset;
295 295
296 dl_notice("mmap() framebuffer addr:%lu size:%lu\n", 296 pr_notice("mmap() framebuffer addr:%lu size:%lu\n",
297 pos, size); 297 pos, size);
298 298
299 while (size > 0) { 299 while (size > 0) {
@@ -595,18 +595,6 @@ error:
595 return 0; 595 return 0;
596} 596}
597 597
598static ssize_t dlfb_ops_read(struct fb_info *info, char __user *buf,
599 size_t count, loff_t *ppos)
600{
601 ssize_t result = -ENOSYS;
602
603#if defined CONFIG_FB_SYS_FOPS || defined CONFIG_FB_SYS_FOPS_MODULE
604 result = fb_sys_read(info, buf, count, ppos);
605#endif
606
607 return result;
608}
609
610/* 598/*
611 * Path triggered by usermode clients who write to filesystem 599 * Path triggered by usermode clients who write to filesystem
612 * e.g. cat filename > /dev/fb1 600 * e.g. cat filename > /dev/fb1
@@ -616,12 +604,10 @@ static ssize_t dlfb_ops_read(struct fb_info *info, char __user *buf,
616static ssize_t dlfb_ops_write(struct fb_info *info, const char __user *buf, 604static ssize_t dlfb_ops_write(struct fb_info *info, const char __user *buf,
617 size_t count, loff_t *ppos) 605 size_t count, loff_t *ppos)
618{ 606{
619 ssize_t result = -ENOSYS; 607 ssize_t result;
620 struct dlfb_data *dev = info->par; 608 struct dlfb_data *dev = info->par;
621 u32 offset = (u32) *ppos; 609 u32 offset = (u32) *ppos;
622 610
623#if defined CONFIG_FB_SYS_FOPS || defined CONFIG_FB_SYS_FOPS_MODULE
624
625 result = fb_sys_write(info, buf, count, ppos); 611 result = fb_sys_write(info, buf, count, ppos);
626 612
627 if (result > 0) { 613 if (result > 0) {
@@ -632,7 +618,6 @@ static ssize_t dlfb_ops_write(struct fb_info *info, const char __user *buf,
632 dlfb_handle_damage(dev, 0, start, info->var.xres, 618 dlfb_handle_damage(dev, 0, start, info->var.xres,
633 lines, info->screen_base); 619 lines, info->screen_base);
634 } 620 }
635#endif
636 621
637 return result; 622 return result;
638} 623}
@@ -644,14 +629,10 @@ static void dlfb_ops_copyarea(struct fb_info *info,
644 629
645 struct dlfb_data *dev = info->par; 630 struct dlfb_data *dev = info->par;
646 631
647#if defined CONFIG_FB_SYS_COPYAREA || defined CONFIG_FB_SYS_COPYAREA_MODULE
648
649 sys_copyarea(info, area); 632 sys_copyarea(info, area);
650 633
651 dlfb_handle_damage(dev, area->dx, area->dy, 634 dlfb_handle_damage(dev, area->dx, area->dy,
652 area->width, area->height, info->screen_base); 635 area->width, area->height, info->screen_base);
653#endif
654
655} 636}
656 637
657static void dlfb_ops_imageblit(struct fb_info *info, 638static void dlfb_ops_imageblit(struct fb_info *info,
@@ -659,15 +640,10 @@ static void dlfb_ops_imageblit(struct fb_info *info,
659{ 640{
660 struct dlfb_data *dev = info->par; 641 struct dlfb_data *dev = info->par;
661 642
662#if defined CONFIG_FB_SYS_IMAGEBLIT || defined CONFIG_FB_SYS_IMAGEBLIT_MODULE
663
664 sys_imageblit(info, image); 643 sys_imageblit(info, image);
665 644
666 dlfb_handle_damage(dev, image->dx, image->dy, 645 dlfb_handle_damage(dev, image->dx, image->dy,
667 image->width, image->height, info->screen_base); 646 image->width, image->height, info->screen_base);
668
669#endif
670
671} 647}
672 648
673static void dlfb_ops_fillrect(struct fb_info *info, 649static void dlfb_ops_fillrect(struct fb_info *info,
@@ -675,17 +651,12 @@ static void dlfb_ops_fillrect(struct fb_info *info,
675{ 651{
676 struct dlfb_data *dev = info->par; 652 struct dlfb_data *dev = info->par;
677 653
678#if defined CONFIG_FB_SYS_FILLRECT || defined CONFIG_FB_SYS_FILLRECT_MODULE
679
680 sys_fillrect(info, rect); 654 sys_fillrect(info, rect);
681 655
682 dlfb_handle_damage(dev, rect->dx, rect->dy, rect->width, 656 dlfb_handle_damage(dev, rect->dx, rect->dy, rect->width,
683 rect->height, info->screen_base); 657 rect->height, info->screen_base);
684#endif
685
686} 658}
687 659
688#ifdef CONFIG_FB_DEFERRED_IO
689/* 660/*
690 * NOTE: fb_defio.c is holding info->fbdefio.mutex 661 * NOTE: fb_defio.c is holding info->fbdefio.mutex
691 * Touching ANY framebuffer memory that triggers a page fault 662 * Touching ANY framebuffer memory that triggers a page fault
@@ -747,8 +718,6 @@ error:
747 &dev->cpu_kcycles_used); 718 &dev->cpu_kcycles_used);
748} 719}
749 720
750#endif
751
752static int dlfb_get_edid(struct dlfb_data *dev, char *edid, int len) 721static int dlfb_get_edid(struct dlfb_data *dev, char *edid, int len)
753{ 722{
754 int i; 723 int i;
@@ -765,7 +734,7 @@ static int dlfb_get_edid(struct dlfb_data *dev, char *edid, int len)
765 (0x80 | (0x02 << 5)), i << 8, 0xA1, rbuf, 2, 734 (0x80 | (0x02 << 5)), i << 8, 0xA1, rbuf, 2,
766 HZ); 735 HZ);
767 if (ret < 1) { 736 if (ret < 1) {
768 dl_err("Read EDID byte %d failed err %x\n", i, ret); 737 pr_err("Read EDID byte %d failed err %x\n", i, ret);
769 i--; 738 i--;
770 break; 739 break;
771 } 740 }
@@ -881,7 +850,6 @@ static int dlfb_ops_open(struct fb_info *info, int user)
881 850
882 kref_get(&dev->kref); 851 kref_get(&dev->kref);
883 852
884#ifdef CONFIG_FB_DEFERRED_IO
885 if (fb_defio && (info->fbdefio == NULL)) { 853 if (fb_defio && (info->fbdefio == NULL)) {
886 /* enable defio at last moment if not disabled by client */ 854 /* enable defio at last moment if not disabled by client */
887 855
@@ -897,9 +865,8 @@ static int dlfb_ops_open(struct fb_info *info, int user)
897 info->fbdefio = fbdefio; 865 info->fbdefio = fbdefio;
898 fb_deferred_io_init(info); 866 fb_deferred_io_init(info);
899 } 867 }
900#endif
901 868
902 dl_notice("open /dev/fb%d user=%d fb_info=%p count=%d\n", 869 pr_notice("open /dev/fb%d user=%d fb_info=%p count=%d\n",
903 info->node, user, info, dev->fb_count); 870 info->node, user, info, dev->fb_count);
904 871
905 return 0; 872 return 0;
@@ -923,7 +890,7 @@ static void dlfb_free(struct kref *kref)
923 890
924 kfree(dev->edid); 891 kfree(dev->edid);
925 892
926 dl_warn("freeing dlfb_data %p\n", dev); 893 pr_warn("freeing dlfb_data %p\n", dev);
927 894
928 kfree(dev); 895 kfree(dev);
929} 896}
@@ -959,7 +926,7 @@ static void dlfb_free_framebuffer_work(struct work_struct *work)
959 /* Assume info structure is freed after this point */ 926 /* Assume info structure is freed after this point */
960 framebuffer_release(info); 927 framebuffer_release(info);
961 928
962 dl_warn("fb_info for /dev/fb%d has been freed\n", node); 929 pr_warn("fb_info for /dev/fb%d has been freed\n", node);
963 930
964 /* ref taken in probe() as part of registering framebfufer */ 931 /* ref taken in probe() as part of registering framebfufer */
965 kref_put(&dev->kref, dlfb_free); 932 kref_put(&dev->kref, dlfb_free);
@@ -978,16 +945,14 @@ static int dlfb_ops_release(struct fb_info *info, int user)
978 if (dev->virtualized && (dev->fb_count == 0)) 945 if (dev->virtualized && (dev->fb_count == 0))
979 schedule_delayed_work(&dev->free_framebuffer_work, HZ); 946 schedule_delayed_work(&dev->free_framebuffer_work, HZ);
980 947
981#ifdef CONFIG_FB_DEFERRED_IO
982 if ((dev->fb_count == 0) && (info->fbdefio)) { 948 if ((dev->fb_count == 0) && (info->fbdefio)) {
983 fb_deferred_io_cleanup(info); 949 fb_deferred_io_cleanup(info);
984 kfree(info->fbdefio); 950 kfree(info->fbdefio);
985 info->fbdefio = NULL; 951 info->fbdefio = NULL;
986 info->fbops->fb_mmap = dlfb_ops_mmap; 952 info->fbops->fb_mmap = dlfb_ops_mmap;
987 } 953 }
988#endif
989 954
990 dl_warn("released /dev/fb%d user=%d count=%d\n", 955 pr_warn("released /dev/fb%d user=%d count=%d\n",
991 info->node, user, dev->fb_count); 956 info->node, user, dev->fb_count);
992 957
993 kref_put(&dev->kref, dlfb_free); 958 kref_put(&dev->kref, dlfb_free);
@@ -1005,12 +970,12 @@ static int dlfb_is_valid_mode(struct fb_videomode *mode,
1005 struct dlfb_data *dev = info->par; 970 struct dlfb_data *dev = info->par;
1006 971
1007 if (mode->xres * mode->yres > dev->sku_pixel_limit) { 972 if (mode->xres * mode->yres > dev->sku_pixel_limit) {
1008 dl_warn("%dx%d beyond chip capabilities\n", 973 pr_warn("%dx%d beyond chip capabilities\n",
1009 mode->xres, mode->yres); 974 mode->xres, mode->yres);
1010 return 0; 975 return 0;
1011 } 976 }
1012 977
1013 dl_info("%dx%d valid mode\n", mode->xres, mode->yres); 978 pr_info("%dx%d valid mode\n", mode->xres, mode->yres);
1014 979
1015 return 1; 980 return 1;
1016} 981}
@@ -1054,7 +1019,7 @@ static int dlfb_ops_set_par(struct fb_info *info)
1054 u16 *pix_framebuffer; 1019 u16 *pix_framebuffer;
1055 int i; 1020 int i;
1056 1021
1057 dl_notice("set_par mode %dx%d\n", info->var.xres, info->var.yres); 1022 pr_notice("set_par mode %dx%d\n", info->var.xres, info->var.yres);
1058 1023
1059 result = dlfb_set_video_mode(dev, &info->var); 1024 result = dlfb_set_video_mode(dev, &info->var);
1060 1025
@@ -1104,7 +1069,7 @@ static int dlfb_ops_blank(int blank_mode, struct fb_info *info)
1104 1069
1105static struct fb_ops dlfb_ops = { 1070static struct fb_ops dlfb_ops = {
1106 .owner = THIS_MODULE, 1071 .owner = THIS_MODULE,
1107 .fb_read = dlfb_ops_read, 1072 .fb_read = fb_sys_read,
1108 .fb_write = dlfb_ops_write, 1073 .fb_write = dlfb_ops_write,
1109 .fb_setcolreg = dlfb_ops_setcolreg, 1074 .fb_setcolreg = dlfb_ops_setcolreg,
1110 .fb_fillrect = dlfb_ops_fillrect, 1075 .fb_fillrect = dlfb_ops_fillrect,
@@ -1133,7 +1098,7 @@ static int dlfb_realloc_framebuffer(struct dlfb_data *dev, struct fb_info *info)
1133 unsigned char *new_fb; 1098 unsigned char *new_fb;
1134 unsigned char *new_back; 1099 unsigned char *new_back;
1135 1100
1136 dl_warn("Reallocating framebuffer. Addresses will change!\n"); 1101 pr_warn("Reallocating framebuffer. Addresses will change!\n");
1137 1102
1138 new_len = info->fix.line_length * info->var.yres; 1103 new_len = info->fix.line_length * info->var.yres;
1139 1104
@@ -1143,7 +1108,7 @@ static int dlfb_realloc_framebuffer(struct dlfb_data *dev, struct fb_info *info)
1143 */ 1108 */
1144 new_fb = vmalloc(new_len); 1109 new_fb = vmalloc(new_len);
1145 if (!new_fb) { 1110 if (!new_fb) {
1146 dl_err("Virtual framebuffer alloc failed\n"); 1111 pr_err("Virtual framebuffer alloc failed\n");
1147 goto error; 1112 goto error;
1148 } 1113 }
1149 1114
@@ -1165,7 +1130,7 @@ static int dlfb_realloc_framebuffer(struct dlfb_data *dev, struct fb_info *info)
1165 */ 1130 */
1166 new_back = vmalloc(new_len); 1131 new_back = vmalloc(new_len);
1167 if (!new_back) 1132 if (!new_back)
1168 dl_info("No shadow/backing buffer allcoated\n"); 1133 pr_info("No shadow/backing buffer allcoated\n");
1169 else { 1134 else {
1170 if (dev->backing_buffer) 1135 if (dev->backing_buffer)
1171 vfree(dev->backing_buffer); 1136 vfree(dev->backing_buffer);
@@ -1207,7 +1172,7 @@ static int dlfb_setup_modes(struct dlfb_data *dev,
1207 if (info->dev) /* only use mutex if info has been registered */ 1172 if (info->dev) /* only use mutex if info has been registered */
1208 mutex_lock(&info->lock); 1173 mutex_lock(&info->lock);
1209 1174
1210 edid = kmalloc(MAX_EDID_SIZE, GFP_KERNEL); 1175 edid = kmalloc(EDID_LENGTH, GFP_KERNEL);
1211 if (!edid) { 1176 if (!edid) {
1212 result = -ENOMEM; 1177 result = -ENOMEM;
1213 goto error; 1178 goto error;
@@ -1223,9 +1188,9 @@ static int dlfb_setup_modes(struct dlfb_data *dev,
1223 */ 1188 */
1224 while (tries--) { 1189 while (tries--) {
1225 1190
1226 i = dlfb_get_edid(dev, edid, MAX_EDID_SIZE); 1191 i = dlfb_get_edid(dev, edid, EDID_LENGTH);
1227 1192
1228 if (i >= MIN_EDID_SIZE) 1193 if (i >= EDID_LENGTH)
1229 fb_edid_to_monspecs(edid, &info->monspecs); 1194 fb_edid_to_monspecs(edid, &info->monspecs);
1230 1195
1231 if (info->monspecs.modedb_len > 0) { 1196 if (info->monspecs.modedb_len > 0) {
@@ -1238,24 +1203,24 @@ static int dlfb_setup_modes(struct dlfb_data *dev,
1238 /* If that fails, use a previously returned EDID if available */ 1203 /* If that fails, use a previously returned EDID if available */
1239 if (info->monspecs.modedb_len == 0) { 1204 if (info->monspecs.modedb_len == 0) {
1240 1205
1241 dl_err("Unable to get valid EDID from device/display\n"); 1206 pr_err("Unable to get valid EDID from device/display\n");
1242 1207
1243 if (dev->edid) { 1208 if (dev->edid) {
1244 fb_edid_to_monspecs(dev->edid, &info->monspecs); 1209 fb_edid_to_monspecs(dev->edid, &info->monspecs);
1245 if (info->monspecs.modedb_len > 0) 1210 if (info->monspecs.modedb_len > 0)
1246 dl_err("Using previously queried EDID\n"); 1211 pr_err("Using previously queried EDID\n");
1247 } 1212 }
1248 } 1213 }
1249 1214
1250 /* If that fails, use the default EDID we were handed */ 1215 /* If that fails, use the default EDID we were handed */
1251 if (info->monspecs.modedb_len == 0) { 1216 if (info->monspecs.modedb_len == 0) {
1252 if (default_edid_size >= MIN_EDID_SIZE) { 1217 if (default_edid_size >= EDID_LENGTH) {
1253 fb_edid_to_monspecs(default_edid, &info->monspecs); 1218 fb_edid_to_monspecs(default_edid, &info->monspecs);
1254 if (info->monspecs.modedb_len > 0) { 1219 if (info->monspecs.modedb_len > 0) {
1255 memcpy(edid, default_edid, default_edid_size); 1220 memcpy(edid, default_edid, default_edid_size);
1256 dev->edid = edid; 1221 dev->edid = edid;
1257 dev->edid_size = default_edid_size; 1222 dev->edid_size = default_edid_size;
1258 dl_err("Using default/backup EDID\n"); 1223 pr_err("Using default/backup EDID\n");
1259 } 1224 }
1260 } 1225 }
1261 } 1226 }
@@ -1381,7 +1346,7 @@ static ssize_t edid_show(
1381 if (off + count > dev->edid_size) 1346 if (off + count > dev->edid_size)
1382 count = dev->edid_size - off; 1347 count = dev->edid_size - off;
1383 1348
1384 dl_info("sysfs edid copy %p to %p, %d bytes\n", 1349 pr_info("sysfs edid copy %p to %p, %d bytes\n",
1385 dev->edid, buf, (int) count); 1350 dev->edid, buf, (int) count);
1386 1351
1387 memcpy(buf, dev->edid, count); 1352 memcpy(buf, dev->edid, count);
@@ -1398,15 +1363,13 @@ static ssize_t edid_store(
1398 struct dlfb_data *dev = fb_info->par; 1363 struct dlfb_data *dev = fb_info->par;
1399 1364
1400 /* We only support write of entire EDID at once, no offset*/ 1365 /* We only support write of entire EDID at once, no offset*/
1401 if ((src_size < MIN_EDID_SIZE) || 1366 if ((src_size != EDID_LENGTH) || (src_off != 0))
1402 (src_size > MAX_EDID_SIZE) ||
1403 (src_off != 0))
1404 return 0; 1367 return 0;
1405 1368
1406 dlfb_setup_modes(dev, fb_info, src, src_size); 1369 dlfb_setup_modes(dev, fb_info, src, src_size);
1407 1370
1408 if (dev->edid && (memcmp(src, dev->edid, src_size) == 0)) { 1371 if (dev->edid && (memcmp(src, dev->edid, src_size) == 0)) {
1409 dl_info("sysfs written EDID is new default\n"); 1372 pr_info("sysfs written EDID is new default\n");
1410 dlfb_ops_set_par(fb_info); 1373 dlfb_ops_set_par(fb_info);
1411 return src_size; 1374 return src_size;
1412 } else 1375 } else
@@ -1431,7 +1394,7 @@ static ssize_t metrics_reset_store(struct device *fbdev,
1431static struct bin_attribute edid_attr = { 1394static struct bin_attribute edid_attr = {
1432 .attr.name = "edid", 1395 .attr.name = "edid",
1433 .attr.mode = 0666, 1396 .attr.mode = 0666,
1434 .size = MAX_EDID_SIZE, 1397 .size = EDID_LENGTH,
1435 .read = edid_show, 1398 .read = edid_show,
1436 .write = edid_store 1399 .write = edid_store
1437}; 1400};
@@ -1479,7 +1442,7 @@ static int dlfb_parse_vendor_descriptor(struct dlfb_data *dev,
1479 total_len = usb_get_descriptor(usbdev, 0x5f, /* vendor specific */ 1442 total_len = usb_get_descriptor(usbdev, 0x5f, /* vendor specific */
1480 0, desc, MAX_VENDOR_DESCRIPTOR_SIZE); 1443 0, desc, MAX_VENDOR_DESCRIPTOR_SIZE);
1481 if (total_len > 5) { 1444 if (total_len > 5) {
1482 dl_info("vendor descriptor length:%x data:%02x %02x %02x %02x" \ 1445 pr_info("vendor descriptor length:%x data:%02x %02x %02x %02x" \
1483 "%02x %02x %02x %02x %02x %02x %02x\n", 1446 "%02x %02x %02x %02x %02x %02x %02x\n",
1484 total_len, desc[0], 1447 total_len, desc[0],
1485 desc[1], desc[2], desc[3], desc[4], desc[5], desc[6], 1448 desc[1], desc[2], desc[3], desc[4], desc[5], desc[6],
@@ -1508,7 +1471,7 @@ static int dlfb_parse_vendor_descriptor(struct dlfb_data *dev,
1508 case 0x0200: { /* max_area */ 1471 case 0x0200: { /* max_area */
1509 u32 max_area; 1472 u32 max_area;
1510 max_area = le32_to_cpu(*((u32 *)desc)); 1473 max_area = le32_to_cpu(*((u32 *)desc));
1511 dl_warn("DL chip limited to %d pixel modes\n", 1474 pr_warn("DL chip limited to %d pixel modes\n",
1512 max_area); 1475 max_area);
1513 dev->sku_pixel_limit = max_area; 1476 dev->sku_pixel_limit = max_area;
1514 break; 1477 break;
@@ -1524,7 +1487,7 @@ static int dlfb_parse_vendor_descriptor(struct dlfb_data *dev,
1524 1487
1525unrecognized: 1488unrecognized:
1526 /* allow udlfb to load for now even if firmware unrecognized */ 1489 /* allow udlfb to load for now even if firmware unrecognized */
1527 dl_err("Unrecognized vendor firmware descriptor\n"); 1490 pr_err("Unrecognized vendor firmware descriptor\n");
1528 1491
1529success: 1492success:
1530 kfree(buf); 1493 kfree(buf);
@@ -1557,24 +1520,24 @@ static int dlfb_usb_probe(struct usb_interface *interface,
1557 dev->gdev = &usbdev->dev; /* our generic struct device * */ 1520 dev->gdev = &usbdev->dev; /* our generic struct device * */
1558 usb_set_intfdata(interface, dev); 1521 usb_set_intfdata(interface, dev);
1559 1522
1560 dl_info("%s %s - serial #%s\n", 1523 pr_info("%s %s - serial #%s\n",
1561 usbdev->manufacturer, usbdev->product, usbdev->serial); 1524 usbdev->manufacturer, usbdev->product, usbdev->serial);
1562 dl_info("vid_%04x&pid_%04x&rev_%04x driver's dlfb_data struct at %p\n", 1525 pr_info("vid_%04x&pid_%04x&rev_%04x driver's dlfb_data struct at %p\n",
1563 usbdev->descriptor.idVendor, usbdev->descriptor.idProduct, 1526 usbdev->descriptor.idVendor, usbdev->descriptor.idProduct,
1564 usbdev->descriptor.bcdDevice, dev); 1527 usbdev->descriptor.bcdDevice, dev);
1565 dl_info("console enable=%d\n", console); 1528 pr_info("console enable=%d\n", console);
1566 dl_info("fb_defio enable=%d\n", fb_defio); 1529 pr_info("fb_defio enable=%d\n", fb_defio);
1567 1530
1568 dev->sku_pixel_limit = 2048 * 1152; /* default to maximum */ 1531 dev->sku_pixel_limit = 2048 * 1152; /* default to maximum */
1569 1532
1570 if (!dlfb_parse_vendor_descriptor(dev, usbdev)) { 1533 if (!dlfb_parse_vendor_descriptor(dev, usbdev)) {
1571 dl_err("firmware not recognized. Assume incompatible device\n"); 1534 pr_err("firmware not recognized. Assume incompatible device\n");
1572 goto error; 1535 goto error;
1573 } 1536 }
1574 1537
1575 if (!dlfb_alloc_urb_list(dev, WRITES_IN_FLIGHT, MAX_TRANSFER)) { 1538 if (!dlfb_alloc_urb_list(dev, WRITES_IN_FLIGHT, MAX_TRANSFER)) {
1576 retval = -ENOMEM; 1539 retval = -ENOMEM;
1577 dl_err("dlfb_alloc_urb_list failed\n"); 1540 pr_err("dlfb_alloc_urb_list failed\n");
1578 goto error; 1541 goto error;
1579 } 1542 }
1580 1543
@@ -1584,7 +1547,7 @@ static int dlfb_usb_probe(struct usb_interface *interface,
1584 info = framebuffer_alloc(0, &usbdev->dev); 1547 info = framebuffer_alloc(0, &usbdev->dev);
1585 if (!info) { 1548 if (!info) {
1586 retval = -ENOMEM; 1549 retval = -ENOMEM;
1587 dl_err("framebuffer_alloc failed\n"); 1550 pr_err("framebuffer_alloc failed\n");
1588 goto error; 1551 goto error;
1589 } 1552 }
1590 1553
@@ -1595,7 +1558,7 @@ static int dlfb_usb_probe(struct usb_interface *interface,
1595 1558
1596 retval = fb_alloc_cmap(&info->cmap, 256, 0); 1559 retval = fb_alloc_cmap(&info->cmap, 256, 0);
1597 if (retval < 0) { 1560 if (retval < 0) {
1598 dl_err("fb_alloc_cmap failed %x\n", retval); 1561 pr_err("fb_alloc_cmap failed %x\n", retval);
1599 goto error; 1562 goto error;
1600 } 1563 }
1601 1564
@@ -1606,7 +1569,7 @@ static int dlfb_usb_probe(struct usb_interface *interface,
1606 1569
1607 retval = dlfb_setup_modes(dev, info, NULL, 0); 1570 retval = dlfb_setup_modes(dev, info, NULL, 0);
1608 if (retval != 0) { 1571 if (retval != 0) {
1609 dl_err("unable to find common mode for display and adapter\n"); 1572 pr_err("unable to find common mode for display and adapter\n");
1610 goto error; 1573 goto error;
1611 } 1574 }
1612 1575
@@ -1620,7 +1583,7 @@ static int dlfb_usb_probe(struct usb_interface *interface,
1620 1583
1621 retval = register_framebuffer(info); 1584 retval = register_framebuffer(info);
1622 if (retval < 0) { 1585 if (retval < 0) {
1623 dl_err("register_framebuffer failed %d\n", retval); 1586 pr_err("register_framebuffer failed %d\n", retval);
1624 goto error; 1587 goto error;
1625 } 1588 }
1626 1589
@@ -1629,7 +1592,7 @@ static int dlfb_usb_probe(struct usb_interface *interface,
1629 1592
1630 device_create_bin_file(info->dev, &edid_attr); 1593 device_create_bin_file(info->dev, &edid_attr);
1631 1594
1632 dl_info("DisplayLink USB device /dev/fb%d attached. %dx%d resolution." 1595 pr_info("DisplayLink USB device /dev/fb%d attached. %dx%d resolution."
1633 " Using %dK framebuffer memory\n", info->node, 1596 " Using %dK framebuffer memory\n", info->node,
1634 info->var.xres, info->var.yres, 1597 info->var.xres, info->var.yres,
1635 ((dev->backing_buffer) ? 1598 ((dev->backing_buffer) ?
@@ -1673,7 +1636,7 @@ static void dlfb_usb_disconnect(struct usb_interface *interface)
1673 dev = usb_get_intfdata(interface); 1636 dev = usb_get_intfdata(interface);
1674 info = dev->info; 1637 info = dev->info;
1675 1638
1676 dl_info("USB disconnect starting\n"); 1639 pr_info("USB disconnect starting\n");
1677 1640
1678 /* we virtualize until all fb clients release. Then we free */ 1641 /* we virtualize until all fb clients release. Then we free */
1679 dev->virtualized = true; 1642 dev->virtualized = true;
@@ -1737,7 +1700,7 @@ static void dlfb_urb_completion(struct urb *urb)
1737 if (!(urb->status == -ENOENT || 1700 if (!(urb->status == -ENOENT ||
1738 urb->status == -ECONNRESET || 1701 urb->status == -ECONNRESET ||
1739 urb->status == -ESHUTDOWN)) { 1702 urb->status == -ESHUTDOWN)) {
1740 dl_err("%s - nonzero write bulk status received: %d\n", 1703 pr_err("%s - nonzero write bulk status received: %d\n",
1741 __func__, urb->status); 1704 __func__, urb->status);
1742 atomic_set(&dev->lost_pixels, 1); 1705 atomic_set(&dev->lost_pixels, 1);
1743 } 1706 }
@@ -1769,7 +1732,7 @@ static void dlfb_free_urb_list(struct dlfb_data *dev)
1769 int ret; 1732 int ret;
1770 unsigned long flags; 1733 unsigned long flags;
1771 1734
1772 dl_notice("Waiting for completes and freeing all render urbs\n"); 1735 pr_notice("Waiting for completes and freeing all render urbs\n");
1773 1736
1774 /* keep waiting and freeing, until we've got 'em all */ 1737 /* keep waiting and freeing, until we've got 'em all */
1775 while (count--) { 1738 while (count--) {
@@ -1848,7 +1811,7 @@ static int dlfb_alloc_urb_list(struct dlfb_data *dev, int count, size_t size)
1848 dev->urbs.count = i; 1811 dev->urbs.count = i;
1849 dev->urbs.available = i; 1812 dev->urbs.available = i;
1850 1813
1851 dl_notice("allocated %d %d byte urbs\n", i, (int) size); 1814 pr_notice("allocated %d %d byte urbs\n", i, (int) size);
1852 1815
1853 return i; 1816 return i;
1854} 1817}
@@ -1865,7 +1828,7 @@ static struct urb *dlfb_get_urb(struct dlfb_data *dev)
1865 ret = down_timeout(&dev->urbs.limit_sem, GET_URB_TIMEOUT); 1828 ret = down_timeout(&dev->urbs.limit_sem, GET_URB_TIMEOUT);
1866 if (ret) { 1829 if (ret) {
1867 atomic_set(&dev->lost_pixels, 1); 1830 atomic_set(&dev->lost_pixels, 1);
1868 dl_warn("wait for urb interrupted: %x available: %d\n", 1831 pr_warn("wait for urb interrupted: %x available: %d\n",
1869 ret, dev->urbs.available); 1832 ret, dev->urbs.available);
1870 goto error; 1833 goto error;
1871 } 1834 }
@@ -1897,7 +1860,7 @@ static int dlfb_submit_urb(struct dlfb_data *dev, struct urb *urb, size_t len)
1897 if (ret) { 1860 if (ret) {
1898 dlfb_urb_completion(urb); /* because no one else will */ 1861 dlfb_urb_completion(urb); /* because no one else will */
1899 atomic_set(&dev->lost_pixels, 1); 1862 atomic_set(&dev->lost_pixels, 1);
1900 dl_err("usb_submit_urb error %x\n", ret); 1863 pr_err("usb_submit_urb error %x\n", ret);
1901 } 1864 }
1902 return ret; 1865 return ret;
1903} 1866}
generated by cgit v1.2.2 (git 2.25.0) at 2026-01-05 22:55:49 -0500