| /Linux-v5.15/drivers/gpu/drm/amd/display/modules/freesync/ |
| D | freesync.c | 36 /* Refresh rate ramp at a fixed rate of 65 Hz/second */
40 /* Threshold to exit/exit BTR (to avoid frequent enter-exits at the lower limit) */
44 /* Threshold to exit fixed refresh rate */
46 /* Number of consecutive frames to check before entering/exiting fixed refresh */
69 core_freesync->dc = dc; in mod_freesync_create()
70 return &core_freesync->public; in mod_freesync_create()
115 * 10000) * stream->timing.h_total, in calc_duration_in_us_from_v_total()
116 stream->timing.pix_clk_100hz)); in calc_duration_in_us_from_v_total()
133 frame_duration_in_ns) * (stream->timing.pix_clk_100hz / 10)), in mod_freesync_calc_v_total_from_refresh()
134 stream->timing.h_total), 1000000); in mod_freesync_calc_v_total_from_refresh()
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| /Linux-v5.15/Documentation/ABI/testing/ |
| D | sysfs-driver-hid-picolcd | 1 What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<p…
3 Contact: Bruno Prémont <bonbons@linux-vserver.org>
11 the non-active mode names listed when read.
18 What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<p…
20 Contact: Bruno Prémont <bonbons@linux-vserver.org>
28 What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<p…
30 Contact: Bruno Prémont <bonbons@linux-vserver.org>
31 Description: Make it possible to adjust defio refresh rate.
33 Reading: returns list of available refresh rates (expressed in Hz),
34 the active refresh rate being enclosed in brackets ('[' and ']')
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| /Linux-v5.15/Documentation/devicetree/bindings/auxdisplay/ |
| D | holtek,ht16k33.yaml | 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Robin van der Gracht <robin@protonic.nl>
13 - $ref: "/schemas/input/matrix-keymap.yaml#"
22 refresh-rate-hz:
29 debounce-delay-ms:
35 linux,no-autorepeat:
38 default-brightness-level:
45 - compatible
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| /Linux-v5.15/Documentation/fb/ |
| D | uvesafb.rst | 2 uvesafb - A Generic Driver for VBE2+ compliant video cards
6 ---------------
30 --------------------------
36 - Lack of any type of acceleration.
37 - A strict and limited set of supported video modes. Often the native
38 or most optimal resolution/refresh rate for your setup will not work
42 ratio, which is what most BIOS-es are limited to.
43 - Adjusting the refresh rate is only possible with a VBE 3.0 compliant
44 Video BIOS. Note that many nVidia Video BIOS-es claim to be VBE 3.0
45 compliant, while they simply ignore any refresh rate settings.
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| D | modedb.rst | 9 - one routine to probe for video modes, which can be used by all frame buffer
11 - one generic video mode database with a fair amount of standard videomodes
13 - the possibility to supply your own mode database for graphics hardware that
14 needs non-standard modes, like amifb and Mac frame buffer drivers (which
23 <xres>x<yres>[M][R][-<bpp>][@<refresh>][i][m][eDd]
24 <name>[-<bpp>][@<refresh>]
26 with <xres>, <yres>, <bpp> and <refresh> decimal numbers and <name> a string.
30 <bpp> and <refresh>, if specified) the timings will be calculated using
37 Sample usage: 1024x768M@60m - CVT timing with margins
44 signals (e.g. HDMI and DVI-I). For other outputs it behaves like 'e'. If 'd'
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| D | intel810.rst | 20 - Intel 810
21 - Intel 810E
22 - Intel 810-DC100
23 - Intel 815 Internal graphics only, 100Mhz FSB
24 - Intel 815 Internal graphics only
25 - Intel 815 Internal graphics and AGP
30 - Choice of using Discrete Video Timings, VESA Generalized Timing
33 - Supports a variable range of horizontal and vertical resolution and
34 vertical refresh rates if the VESA Generalized Timing Formula is
37 - Supports color depths of 8, 16, 24 and 32 bits per pixel
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| /Linux-v5.15/drivers/video/fbdev/core/ |
| D | modedb.c | 2 * linux/drivers/video/modedb.c -- Standard video mode database management
6 * 2001 - Documented with DocBook
7 * - Brad Douglas <brad@neruo.com>
38 /* 640x400 @ 70 Hz, 31.5 kHz hsync */
42 /* 640x480 @ 60 Hz, 31.5 kHz hsync */
46 /* 800x600 @ 56 Hz, 35.15 kHz hsync */
50 /* 1024x768 @ 87 Hz interlaced, 35.5 kHz hsync */
54 /* 640x400 @ 85 Hz, 37.86 kHz hsync */
58 /* 640x480 @ 72 Hz, 36.5 kHz hsync */
62 /* 640x480 @ 75 Hz, 37.50 kHz hsync */
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| D | fbcvt.c | 2 * linux/drivers/video/fbcvt.c - VESA(TM) Coordinated Video Timings
38 u32 refresh; member
75 u32 num = 1000000000/cvt->f_refresh; in fb_cvt_hperiod()
78 if (cvt->flags & FB_CVT_FLAG_REDUCED_BLANK) { in fb_cvt_hperiod()
79 num -= FB_CVT_RB_MIN_VBLANK * 1000; in fb_cvt_hperiod()
80 den = 2 * (cvt->yres/cvt->interlace + 2 * cvt->v_margin); in fb_cvt_hperiod()
82 num -= FB_CVT_MIN_VSYNC_BP * 1000; in fb_cvt_hperiod()
83 den = 2 * (cvt->yres/cvt->interlace + cvt->v_margin * 2 in fb_cvt_hperiod()
84 + FB_CVT_MIN_VPORCH + cvt->interlace/2); in fb_cvt_hperiod()
93 u32 c_prime = (FB_CVT_GTF_C - FB_CVT_GTF_J) * in fb_cvt_ideal_duty_cycle()
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| D | fbmon.c | 11 * Copyright (C) 1991-2002 SciTech Software, Inc. All rights reserved.
14 * Copyright 1998 by Egbert Eich <Egbert.Eich@Physik.TU-Darmstadt.DE>
62 /* DEC FR-PCXAV-YZ */
93 while (i-- && (*--s == 0x20)) *s = 0; in copy_string()
240 b[9] = 17; /* pixclock - 170 MHz*/ in fix_edid()
248 for (i = 0; i < EDID_LENGTH - 1; i++) in fix_edid()
251 edid[127] = 256 - csum; in fix_edid()
294 specs->manufacturer[0] = ((block[0] & 0x7c) >> 2) + '@'; in parse_vendor_block()
295 specs->manufacturer[1] = ((block[0] & 0x03) << 3) + in parse_vendor_block()
297 specs->manufacturer[2] = (block[1] & 0x1f) + '@'; in parse_vendor_block()
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| /Linux-v5.15/drivers/staging/sm750fb/ |
| D | readme | 4 - dual display
5 - 2D acceleration
6 - 16MB integrated video memory
10 Use 1280,8bpp index color and 60 hz mode:
11 insmod ./sm750fb.ko g_option="1280x1024-8@60"
23 1) if you build the driver with built-in method, the parameter
33 refresh rate, kernel driver will defaulty use 16bpp and 60hz
37 and this driver will use fb1, fb2. In that case, you need to configure your X-server
|
| /Linux-v5.15/arch/m68k/include/asm/ |
| D | MC68EZ328.h | 1 /* SPDX-License-Identifier: GPL-2.0 */
3 /* include/asm-m68knommu/MC68EZ328.h: 'EZ328 control registers
8 * Based on include/asm-m68knommu/MC68332.h
27 * 0xFFFFF0xx -- System Control
37 #define SCR_WDTH8 0x01 /* 8-Bit Width Select */
40 #define SCR_BETEN 0x10 /* Bus-Error Time-Out Enable */
43 #define SCR_BETO 0x80 /* Bus-Error TimeOut */
53 * 0xFFFFF1xx -- Chip-Select logic
84 #define CSA_EN 0x0001 /* Chip-Select Enable */
85 #define CSA_SIZ_MASK 0x000e /* Chip-Select Size */
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| D | MC68VZ328.h | 1 /* SPDX-License-Identifier: GPL-2.0 */
3 /* include/asm-m68knommu/MC68VZ328.h: 'VZ328 control registers
5 * Copyright (c) 2000-2001 Lineo Inc. <www.lineo.com>
6 * Copyright (c) 2000-2001 Lineo Canada Corp. <www.lineo.ca>
9 * Based on include/asm-m68knommu/MC68332.h
29 * 0xFFFFF0xx -- System Control
39 #define SCR_WDTH8 0x01 /* 8-Bit Width Select */
42 #define SCR_BETEN 0x10 /* Bus-Error Time-Out Enable */
45 #define SCR_BETO 0x80 /* Bus-Error TimeOut */
55 * 0xFFFFF1xx -- Chip-Select logic
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| /Linux-v5.15/arch/arm/mach-omap2/ |
| D | sdrc.h | 1 /* SPDX-License-Identifier: GPL-2.0-only */
8 * Copyright (C) 2007-2008, 2012 Texas Instruments, Inc.
9 * Copyright (C) 2007-2008 Nokia Corporation
55 * struct omap_sdrc_params - SDRC parameters for a given SDRC clock rate
56 * @rate: SDRC clock rate (in Hz)
57 * @actim_ctrla: Value to program to SDRC_ACTIM_CTRLA for this rate
58 * @actim_ctrlb: Value to program to SDRC_ACTIM_CTRLB for this rate
59 * @rfr_ctrl: Value to program to SDRC_RFR_CTRL for this rate
60 * @mr: Value to program to SDRC_MR for this rate
62 * This structure holds a pre-computed set of register values for the
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| /Linux-v5.15/drivers/memory/ |
| D | jedec_ddr.h | 1 /* SPDX-License-Identifier: GPL-2.0-only */
64 /* Refresh rate in nano-seconds */
105 /* MR4 SDRAM Refresh Rate field values */
176 * are in Hz.
|
| /Linux-v5.15/drivers/memory/tegra/ |
| D | tegra210-emc-core.c | 1 // SPDX-License-Identifier: GPL-2.0
3 * Copyright (c) 2015-2020, NVIDIA CORPORATION. All rights reserved.
21 #include "tegra210-emc.h"
22 #include "tegra210-mc.h"
62 next->trim_regs[EMC_PMACRO_OB_DDLL_LONG_DQ_RANK ## \
69 next->trim_perch_regs[EMC ## chan ## \
564 if (!emc->last) in tegra210_emc_train()
567 spin_lock_irqsave(&emc->lock, flags); in tegra210_emc_train()
569 if (emc->sequence->periodic_compensation) in tegra210_emc_train()
570 emc->sequence->periodic_compensation(emc); in tegra210_emc_train()
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| /Linux-v5.15/Documentation/userspace-api/media/v4l/ |
| D | vidioc-enumstd.rst | 1 .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
13 VIDIOC_ENUMSTD - VIDIOC_SUBDEV_ENUMSTD - Enumerate supported video standards
52 .. flat-table:: struct v4l2_standard
53 :header-rows: 0
54 :stub-columns: 0
57 * - __u32
58 - ``index``
59 - Number of the video standard, set by the application.
60 * - :ref:`v4l2_std_id <v4l2-std-id>`
61 - ``id``
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| /Linux-v5.15/drivers/gpu/drm/i915/display/ |
| D | intel_tv.c | 2 * Copyright © 2006-2008 Intel Corporation
30 * Integrated TV-out support for the 915GM and 945GM.
128 * ee = 00 = 10^-1 (0.mmmmmmmmm)
129 * ee = 01 = 10^-2 (0.0mmmmmmmmm)
130 * ee = 10 = 10^-3 (0.00mmmmmmmmm)
131 * ee = 11 = 10^-4 (0.000mmmmmmmmm)
134 * eee = 000 = 10^-1 (0.mmmmmmmmm)
135 * eee = 001 = 10^-2 (0.0mmmmmmmmm)
136 * eee = 010 = 10^-3 (0.00mmmmmmmmm)
137 * eee = 011 = 10^-4 (0.000mmmmmmmmm)
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| /Linux-v5.15/drivers/video/fbdev/ |
| D | controlfb.h | 1 /* SPDX-License-Identifier: GPL-2.0-or-later */
52 struct preg hperiod; /* horiz period - 2 */
59 struct preg hserr; /* horiz period - horiz sync len */
67 struct preg rfrcnt; /* refresh count */
85 unsigned hperiod; /* horiz period - 2 */
92 unsigned hserr; /* horiz period - horiz sync len */
96 * Dot clock rate is
120 {{-1,-1}}, /* 512x384, 60Hz interlaced (NTSC) */
121 {{-1,-1}}, /* 512x384, 60Hz */
122 {{-1,-1}}, /* 640x480, 50Hz interlaced (PAL) */
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| /Linux-v5.15/drivers/gpu/drm/ |
| D | drm_connector.c | 45 * Hence they are reference-counted using drm_connector_get() and
61 * For connectors which are not fixed (like built-in panels) the driver needs to
80 { DRM_MODE_CONNECTOR_DVII, "DVI-I" },
81 { DRM_MODE_CONNECTOR_DVID, "DVI-D" },
82 { DRM_MODE_CONNECTOR_DVIA, "DVI-A" },
89 { DRM_MODE_CONNECTOR_HDMIA, "HDMI-A" },
90 { DRM_MODE_CONNECTOR_HDMIB, "HDMI-B" },
118 * drm_get_connector_type_name - return a string for connector type
133 * drm_connector_get_cmdline_mode - reads the user's cmdline mode
136 * The kernel supports per-connector configuration of its consoles through
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| /Linux-v5.15/drivers/gpu/drm/amd/display/dc/ |
| D | dc_types.h | 2 * Copyright 2012-15 Advanced Micro Devices, Inc.
59 * (access to non-DC registers will hang FPGA) */
156 /* for Audio Formats 2-8 (Max bit rate divided by 8 kHz)*/
158 uint8_t audio_codec_vendor_specific; /* for Audio Formats 9-15*/
234 /* note: part of refresh rate flag*/
252 /* Refresh rate divider when Miracast sink is using a
253 different rate than the output display device
254 Must be zero for wired displays and non-zero for
321 /* Vertical refresh rate for progressive modes.
322 * Field rate for interlaced modes.*/
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| /Linux-v5.15/drivers/gpu/drm/msm/disp/dpu1/ |
| D | dpu_hw_pingpong.h | 1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /* Copyright (c) 2015-2018, The Linux Foundation. All rights reserved.
19 * This is ratio of MDP VSYNC clk freq(Hz) to
20 * refresh rate divided by no of lines
40 * struct dpu_hw_dither_cfg - dither feature structure
87 * @Return: 1 if TE was originally connected, 0 if not, or -ERROR
113 * @Return: 0 on success, -ETIMEDOUT on timeout
145 * to_dpu_hw_pingpong - convert base object dpu_hw_base to container
155 * dpu_hw_pingpong_init - initializes the pingpong driver for the passed
167 * dpu_hw_pingpong_destroy - destroys pingpong driver context
|
| /Linux-v5.15/include/drm/ |
| D | drm_connector.h | 50 DRM_FORCE_ON_DIGITAL, /* for DVI-I use digital connector */
54 * enum drm_connector_status - status for a &drm_connector
69 * nothing there. It is driver-dependent whether a connector with this
76 * flicker (like load-detection when the connector is in use), or when a
77 * hardware resource isn't available (like when load-detection needs a
87 * enum drm_connector_registration_state - userspace registration status for
120 * - An unregistered connector may only have its DPMS changed from
121 * On->Off. Once DPMS is changed to Off, it may not be switched back
123 * - Modesets are not allowed on unregistered connectors, unless they
127 * - Removing a CRTC from an unregistered connector is OK, but new
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| /Linux-v5.15/drivers/video/fbdev/kyro/ |
| D | fbdev.c | 48 /* 640x480, 16bpp @ 60 Hz */
58 .height = -1,
59 .width = -1,
92 /* 640x350 @ 85Hz */
97 /* 640x400 @ 85Hz */
102 /* 720x400 @ 85Hz */
107 /* 640x480 @ 60Hz */
112 /* 640x480 @ 72Hz */
117 /* 640x480 @ 75Hz */
122 /* 640x480 @ 85Hz */
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| /Linux-v5.15/drivers/auxdisplay/ |
| D | ht16k33.c | 1 // SPDX-License-Identifier: GPL-2.0
108 return i2c_smbus_write_byte(priv->client, data); in ht16k33_display_on()
113 return i2c_smbus_write_byte(priv->client, REG_DISPLAY_SETUP); in ht16k33_display_off()
118 struct ht16k33_fbdev *fbdev = &priv->fbdev; in ht16k33_fb_queue()
120 schedule_delayed_work(&fbdev->work, HZ / fbdev->refresh_rate); in ht16k33_fb_queue()
134 int len, pos = 0, first = -1; in ht16k33_fb_update()
136 p1 = fbdev->cache; in ht16k33_fb_update()
137 p2 = fbdev->buffer; in ht16k33_fb_update()
141 if (*(p1++) - *(p2++)) in ht16k33_fb_update()
150 len = HT16K33_FB_SIZE - first; in ht16k33_fb_update()
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| /Linux-v5.15/drivers/gpu/drm/amd/display/amdgpu_dm/ |
| D | amdgpu_dm.h | 2 * Copyright (C) 2015-2020 Advanced Micro Devices, Inc. All rights reserved.
78 * struct dm_compressor_info - Buffer info used by frame buffer compression
90 * struct vblank_control_work - Work data for vblank control
106 * struct amdgpu_dm_backlight_caps - Information about backlight
126 * @min_input_signal: minimum possible input in range 0-255.
130 * @max_input_signal: maximum possible input in range 0-255.
144 * struct dal_allocation - Tracks mapped FB memory for SMU communication
158 * struct amdgpu_display_manager - Central amdgpu display manager device
328 pflip_params[DC_IRQ_SOURCE_PFLIP_LAST - DC_IRQ_SOURCE_PFLIP_FIRST + 1];
337 vblank_params[DC_IRQ_SOURCE_VBLANK6 - DC_IRQ_SOURCE_VBLANK1 + 1];
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