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LinuxKPI: update linuxkpi_video to Linux 6.6
disable hdmi_audio_infoframe_pack_for_dp function for now as it depends on not imported yet drm sources and is not used by drm-kmod. Reviewed by: manu Sponsored by: Serenity CyberSecurity, LLC Differential Revision: https://reviews.freebsd.org/D46224 (cherry picked from commit c89d94ad5d95fd15e891b2723caae8a6104ee153)
This commit is contained in:
Vladimir Kondratyev
parent
f742580293
commit
59d36b8969
7 changed files with 248 additions and 57 deletions
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@ -16,7 +16,9 @@ int devm_aperture_acquire_for_platform_device(struct platform_device *pdev,
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resource_size_t size);
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int aperture_remove_conflicting_devices(resource_size_t base, resource_size_t size,
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bool primary, const char *name);
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const char *name);
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int __aperture_remove_legacy_vga_devices(struct pci_dev *pdev);
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int aperture_remove_conflicting_pci_devices(struct pci_dev *pdev, const char *name);
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#else
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@ -28,7 +30,12 @@ static inline int devm_aperture_acquire_for_platform_device(struct platform_devi
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}
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static inline int aperture_remove_conflicting_devices(resource_size_t base, resource_size_t size,
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bool primary, const char *name)
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const char *name)
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{
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return 0;
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}
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static inline int __aperture_remove_legacy_vga_devices(struct pci_dev *pdev)
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{
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return 0;
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}
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@ -41,7 +48,6 @@ static inline int aperture_remove_conflicting_pci_devices(struct pci_dev *pdev,
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/**
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* aperture_remove_all_conflicting_devices - remove all existing framebuffers
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* @primary: also kick vga16fb if present; only relevant for VGA devices
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* @name: a descriptive name of the requesting driver
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*
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* This function removes all graphics device drivers. Use this function on systems
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@ -50,9 +56,9 @@ static inline int aperture_remove_conflicting_pci_devices(struct pci_dev *pdev,
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* Returns:
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* 0 on success, or a negative errno code otherwise
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*/
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static inline int aperture_remove_all_conflicting_devices(bool primary, const char *name)
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static inline int aperture_remove_all_conflicting_devices(const char *name)
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{
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return aperture_remove_conflicting_devices(0, (resource_size_t)-1, primary, name);
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return aperture_remove_conflicting_devices(0, (resource_size_t)-1, name);
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}
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#endif
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@ -336,7 +336,14 @@ ssize_t hdmi_audio_infoframe_pack(struct hdmi_audio_infoframe *frame,
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void *buffer, size_t size);
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ssize_t hdmi_audio_infoframe_pack_only(const struct hdmi_audio_infoframe *frame,
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void *buffer, size_t size);
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int hdmi_audio_infoframe_check(struct hdmi_audio_infoframe *frame);
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int hdmi_audio_infoframe_check(const struct hdmi_audio_infoframe *frame);
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#ifdef __linux__
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struct dp_sdp;
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ssize_t
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hdmi_audio_infoframe_pack_for_dp(const struct hdmi_audio_infoframe *frame,
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struct dp_sdp *sdp, u8 dp_version);
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#endif
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enum hdmi_3d_structure {
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HDMI_3D_STRUCTURE_INVALID = -1,
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44
sys/compat/linuxkpi/common/include/video/cmdline.h
Normal file
44
sys/compat/linuxkpi/common/include/video/cmdline.h
Normal file
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@ -0,0 +1,44 @@
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/*-
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* SPDX-License-Identifier: BSD-2-Clause
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*
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* Copyright (c) 2023 Serenity Cyber Security, LLC.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef _VIDEO_CMDLINE_H_
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#define _VIDEO_CMDLINE_H_
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#include <linux/types.h>
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#define CONFIG_VIDEO_CMDLINE
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#if defined(CONFIG_VIDEO_CMDLINE)
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const char *video_get_options(const char *name);
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#else
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static inline const char *
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video_get_options(const char *name)
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{
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return (NULL);
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}
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#endif
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#endif /* _VIDEO_CMDLINE_H_ */
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@ -20,7 +20,7 @@
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* driver can be active at any given time. Many systems load a generic
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* graphics drivers, such as EFI-GOP or VESA, early during the boot process.
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* During later boot stages, they replace the generic driver with a dedicated,
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* hardware-specific driver. To take over the device the dedicated driver
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* hardware-specific driver. To take over the device, the dedicated driver
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* first has to remove the generic driver. Aperture functions manage
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* ownership of framebuffer memory and hand-over between drivers.
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*
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@ -43,7 +43,7 @@
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* base = mem->start;
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* size = resource_size(mem);
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*
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* ret = aperture_remove_conflicting_devices(base, size, false, "example");
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* ret = aperture_remove_conflicting_devices(base, size, "example");
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* if (ret)
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* return ret;
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*
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@ -76,7 +76,7 @@
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* generic EFI or VESA drivers, have to register themselves as owners of their
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* framebuffer apertures. Ownership of the framebuffer memory is achieved
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* by calling devm_aperture_acquire_for_platform_device(). If successful, the
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* driveris the owner of the framebuffer range. The function fails if the
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* driver is the owner of the framebuffer range. The function fails if the
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* framebuffer is already owned by another driver. See below for an example.
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*
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* .. code-block:: c
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@ -126,7 +126,7 @@
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* et al for the registered framebuffer range, the aperture helpers call
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* platform_device_unregister() and the generic driver unloads itself. The
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* generic driver also has to provide a remove function to make this work.
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* Once hot unplugged fro mhardware, it may not access the device's
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* Once hot unplugged from hardware, it may not access the device's
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* registers, framebuffer memory, ROM, etc afterwards.
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*/
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@ -203,7 +203,7 @@ static void aperture_detach_platform_device(struct device *dev)
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/*
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* Remove the device from the device hierarchy. This is the right thing
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* to do for firmware-based DRM drivers, such as EFI, VESA or VGA. After
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* to do for firmware-based fb drivers, such as EFI, VESA or VGA. After
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* the new driver takes over the hardware, the firmware device's state
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* will be lost.
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*
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@ -274,7 +274,6 @@ static void aperture_detach_devices(resource_size_t base, resource_size_t size)
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* aperture_remove_conflicting_devices - remove devices in the given range
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* @base: the aperture's base address in physical memory
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* @size: aperture size in bytes
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* @primary: also kick vga16fb if present; only relevant for VGA devices
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* @name: a descriptive name of the requesting driver
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*
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* This function removes devices that own apertures within @base and @size.
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@ -283,7 +282,7 @@ static void aperture_detach_devices(resource_size_t base, resource_size_t size)
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* 0 on success, or a negative errno code otherwise
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*/
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int aperture_remove_conflicting_devices(resource_size_t base, resource_size_t size,
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bool primary, const char *name)
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const char *name)
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{
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/*
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* If a driver asked to unregister a platform device registered by
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@ -300,18 +299,45 @@ int aperture_remove_conflicting_devices(resource_size_t base, resource_size_t si
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aperture_detach_devices(base, size);
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/*
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* If this is the primary adapter, there could be a VGA device
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* that consumes the VGA framebuffer I/O range. Remove this device
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* as well.
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*/
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if (primary)
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aperture_detach_devices(VGA_FB_PHYS_BASE, VGA_FB_PHYS_SIZE);
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return 0;
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}
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EXPORT_SYMBOL(aperture_remove_conflicting_devices);
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/**
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* __aperture_remove_legacy_vga_devices - remove legacy VGA devices of a PCI devices
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* @pdev: PCI device
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*
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* This function removes VGA devices provided by @pdev, such as a VGA
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* framebuffer or a console. This is useful if you have a VGA-compatible
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* PCI graphics device with framebuffers in non-BAR locations. Drivers
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* should acquire ownership of those memory areas and afterwards call
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* this helper to release remaining VGA devices.
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*
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* If your hardware has its framebuffers accessible via PCI BARS, use
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* aperture_remove_conflicting_pci_devices() instead. The function will
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* release any VGA devices automatically.
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*
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* WARNING: Apparently we must remove graphics drivers before calling
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* this helper. Otherwise the vga fbdev driver falls over if
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* we have vgacon configured.
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*
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* Returns:
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* 0 on success, or a negative errno code otherwise
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*/
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int __aperture_remove_legacy_vga_devices(struct pci_dev *pdev)
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{
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/* VGA framebuffer */
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aperture_detach_devices(VGA_FB_PHYS_BASE, VGA_FB_PHYS_SIZE);
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/* VGA textmode console */
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#ifdef __linux__
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return vga_remove_vgacon(pdev);
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#elif defined(__FreeBSD__)
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return 0;
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#endif
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}
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EXPORT_SYMBOL(__aperture_remove_legacy_vga_devices);
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/**
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* aperture_remove_conflicting_pci_devices - remove existing framebuffers for PCI devices
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* @pdev: PCI device
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@ -328,14 +354,14 @@ int aperture_remove_conflicting_pci_devices(struct pci_dev *pdev, const char *na
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{
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bool primary = false;
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resource_size_t base, size;
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int bar, ret;
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int bar, ret = 0;
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#ifdef CONFIG_X86
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#ifdef __linux__
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primary = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW;
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#elif defined(__FreeBSD__)
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primary = NULL;
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#endif
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if (pdev == vga_default_device())
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primary = true;
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if (primary)
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sysfb_disable();
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#endif
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for (bar = 0; bar < PCI_STD_NUM_BARS; ++bar) {
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@ -344,22 +370,18 @@ int aperture_remove_conflicting_pci_devices(struct pci_dev *pdev, const char *na
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base = pci_resource_start(pdev, bar);
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size = pci_resource_len(pdev, bar);
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ret = aperture_remove_conflicting_devices(base, size, primary, name);
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if (ret)
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return ret;
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aperture_detach_devices(base, size);
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}
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/*
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* WARNING: Apparently we must kick fbdev drivers before vgacon,
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* otherwise the vga fbdev driver falls over.
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* If this is the primary adapter, there could be a VGA device
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* that consumes the VGA framebuffer I/O range. Remove this
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* device as well.
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*/
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#ifdef __linux__
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ret = vga_remove_vgacon(pdev);
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if (ret)
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return ret;
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#endif
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if (primary)
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ret = __aperture_remove_legacy_vga_devices(pdev);
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return 0;
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return ret;
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}
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EXPORT_SYMBOL(aperture_remove_conflicting_pci_devices);
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63
sys/compat/linuxkpi/common/src/linux_cmdline.c
Normal file
63
sys/compat/linuxkpi/common/src/linux_cmdline.c
Normal file
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@ -0,0 +1,63 @@
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/*-
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* Copyright (c) 2022 Beckhoff Automation GmbH & Co. KG
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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*/
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <video/cmdline.h>
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const char *
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video_get_options(const char *connector_name)
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{
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char tunable[64];
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const char *options;
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/*
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* A user may use loader tunables to set a specific mode for the
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* console. Tunables are read in the following order:
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* 1. kern.vt.fb.modes.$connector_name
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* 2. kern.vt.fb.default_mode
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*
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* Example of a mode specific to the LVDS connector:
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* kern.vt.fb.modes.LVDS="1024x768"
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*
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* Example of a mode applied to all connectors not having a
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* connector-specific mode:
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* kern.vt.fb.default_mode="640x480"
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*/
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snprintf(tunable, sizeof(tunable), "kern.vt.fb.modes.%s",
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connector_name);
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if (bootverbose) {
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printf("[drm] Connector %s: get mode from tunables:\n", connector_name);
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printf("[drm] - %s\n", tunable);
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printf("[drm] - kern.vt.fb.default_mode\n");
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}
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options = kern_getenv(tunable);
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if (options == NULL)
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options = kern_getenv("kern.vt.fb.default_mode");
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return (options);
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}
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@ -21,6 +21,9 @@
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* DEALINGS IN THE SOFTWARE.
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*/
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#ifdef __linux__
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#include <drm/display/drm_dp.h>
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#endif
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#include <linux/bitops.h>
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#include <linux/bug.h>
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#include <linux/errno.h>
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@ -381,12 +384,34 @@ static int hdmi_audio_infoframe_check_only(const struct hdmi_audio_infoframe *fr
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*
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* Returns 0 on success or a negative error code on failure.
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*/
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int hdmi_audio_infoframe_check(struct hdmi_audio_infoframe *frame)
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int hdmi_audio_infoframe_check(const struct hdmi_audio_infoframe *frame)
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{
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return hdmi_audio_infoframe_check_only(frame);
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}
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EXPORT_SYMBOL(hdmi_audio_infoframe_check);
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static void
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hdmi_audio_infoframe_pack_payload(const struct hdmi_audio_infoframe *frame,
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u8 *buffer)
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{
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u8 channels;
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if (frame->channels >= 2)
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channels = frame->channels - 1;
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else
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channels = 0;
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buffer[0] = ((frame->coding_type & 0xf) << 4) | (channels & 0x7);
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buffer[1] = ((frame->sample_frequency & 0x7) << 2) |
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(frame->sample_size & 0x3);
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buffer[2] = frame->coding_type_ext & 0x1f;
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buffer[3] = frame->channel_allocation;
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buffer[4] = (frame->level_shift_value & 0xf) << 3;
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if (frame->downmix_inhibit)
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buffer[4] |= BIT(7);
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}
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/**
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* hdmi_audio_infoframe_pack_only() - write HDMI audio infoframe to binary buffer
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* @frame: HDMI audio infoframe
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@ -404,7 +429,6 @@ EXPORT_SYMBOL(hdmi_audio_infoframe_check);
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ssize_t hdmi_audio_infoframe_pack_only(const struct hdmi_audio_infoframe *frame,
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void *buffer, size_t size)
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{
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unsigned char channels;
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u8 *ptr = buffer;
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size_t length;
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int ret;
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@ -420,28 +444,13 @@ ssize_t hdmi_audio_infoframe_pack_only(const struct hdmi_audio_infoframe *frame,
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memset(buffer, 0, size);
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if (frame->channels >= 2)
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channels = frame->channels - 1;
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else
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channels = 0;
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ptr[0] = frame->type;
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ptr[1] = frame->version;
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ptr[2] = frame->length;
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ptr[3] = 0; /* checksum */
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/* start infoframe payload */
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ptr += HDMI_INFOFRAME_HEADER_SIZE;
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ptr[0] = ((frame->coding_type & 0xf) << 4) | (channels & 0x7);
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ptr[1] = ((frame->sample_frequency & 0x7) << 2) |
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(frame->sample_size & 0x3);
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ptr[2] = frame->coding_type_ext & 0x1f;
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ptr[3] = frame->channel_allocation;
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ptr[4] = (frame->level_shift_value & 0xf) << 3;
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|
||||
if (frame->downmix_inhibit)
|
||||
ptr[4] |= BIT(7);
|
||||
hdmi_audio_infoframe_pack_payload(frame,
|
||||
ptr + HDMI_INFOFRAME_HEADER_SIZE);
|
||||
|
||||
hdmi_infoframe_set_checksum(buffer, length);
|
||||
|
||||
|
|
@ -479,6 +488,45 @@ ssize_t hdmi_audio_infoframe_pack(struct hdmi_audio_infoframe *frame,
|
|||
}
|
||||
EXPORT_SYMBOL(hdmi_audio_infoframe_pack);
|
||||
|
||||
#ifdef __linux__
|
||||
/**
|
||||
* hdmi_audio_infoframe_pack_for_dp - Pack a HDMI Audio infoframe for DisplayPort
|
||||
*
|
||||
* @frame: HDMI Audio infoframe
|
||||
* @sdp: Secondary data packet for DisplayPort.
|
||||
* @dp_version: DisplayPort version to be encoded in the header
|
||||
*
|
||||
* Packs a HDMI Audio Infoframe to be sent over DisplayPort. This function
|
||||
* fills the secondary data packet to be used for DisplayPort.
|
||||
*
|
||||
* Return: Number of total written bytes or a negative errno on failure.
|
||||
*/
|
||||
ssize_t
|
||||
hdmi_audio_infoframe_pack_for_dp(const struct hdmi_audio_infoframe *frame,
|
||||
struct dp_sdp *sdp, u8 dp_version)
|
||||
{
|
||||
int ret;
|
||||
|
||||
ret = hdmi_audio_infoframe_check(frame);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
memset(sdp->db, 0, sizeof(sdp->db));
|
||||
|
||||
/* Secondary-data packet header */
|
||||
sdp->sdp_header.HB0 = 0;
|
||||
sdp->sdp_header.HB1 = frame->type;
|
||||
sdp->sdp_header.HB2 = DP_SDP_AUDIO_INFOFRAME_HB2;
|
||||
sdp->sdp_header.HB3 = (dp_version & 0x3f) << 2;
|
||||
|
||||
hdmi_audio_infoframe_pack_payload(frame, sdp->db);
|
||||
|
||||
/* Return size = frame length + four HB for sdp_header */
|
||||
return frame->length + 4;
|
||||
}
|
||||
EXPORT_SYMBOL(hdmi_audio_infoframe_pack_for_dp);
|
||||
#endif
|
||||
|
||||
/**
|
||||
* hdmi_vendor_infoframe_init() - initialize an HDMI vendor infoframe
|
||||
* @frame: HDMI vendor infoframe
|
||||
|
|
|
|||
|
|
@ -3,6 +3,7 @@
|
|||
KMOD= linuxkpi_video
|
||||
SRCS= linux_hdmi.c \
|
||||
linux_aperture.c \
|
||||
linux_cmdline.c \
|
||||
linuxkpi_videokmod.c
|
||||
|
||||
SRCS+= ${LINUXKPI_GENSRCS}
|
||||
|
|
|
|||
Loading…
Reference in a new issue