^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) * Copyright (c) 2006-2009 Red Hat Inc.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * Copyright (c) 2006-2008 Intel Corporation
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) * Copyright (c) 2007 Dave Airlie <airlied@linux.ie>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) * DRM framebuffer helper functions
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) * Permission to use, copy, modify, distribute, and sell this software and its
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) * documentation for any purpose is hereby granted without fee, provided that
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) * the above copyright notice appear in all copies and that both that copyright
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) * notice and this permission notice appear in supporting documentation, and
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) * that the name of the copyright holders not be used in advertising or
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) * publicity pertaining to distribution of the software without specific,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) * written prior permission. The copyright holders make no representations
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) * about the suitability of this software for any purpose. It is provided "as
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) * is" without express or implied warranty.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) * OF THIS SOFTWARE.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) * Authors:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) * Dave Airlie <airlied@linux.ie>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) * Jesse Barnes <jesse.barnes@intel.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) #ifndef DRM_FB_HELPER_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) #define DRM_FB_HELPER_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) struct drm_fb_helper;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) #include <drm/drm_client.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) #include <drm/drm_crtc.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) #include <drm/drm_device.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) #include <linux/kgdb.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) #include <linux/vgaarb.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) enum mode_set_atomic {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) LEAVE_ATOMIC_MODE_SET,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) ENTER_ATOMIC_MODE_SET,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) * struct drm_fb_helper_surface_size - describes fbdev size and scanout surface size
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) * @fb_width: fbdev width
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) * @fb_height: fbdev height
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) * @surface_width: scanout buffer width
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) * @surface_height: scanout buffer height
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) * @surface_bpp: scanout buffer bpp
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) * @surface_depth: scanout buffer depth
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) * Note that the scanout surface width/height may be larger than the fbdev
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) * width/height. In case of multiple displays, the scanout surface is sized
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) * according to the largest width/height (so it is large enough for all CRTCs
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) * to scanout). But the fbdev width/height is sized to the minimum width/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) * height of all the displays. This ensures that fbcon fits on the smallest
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) * of the attached displays. fb_width/fb_height is used by
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) * drm_fb_helper_fill_info() to fill out the &fb_info.var structure.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) struct drm_fb_helper_surface_size {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) u32 fb_width;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) u32 fb_height;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) u32 surface_width;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) u32 surface_height;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) u32 surface_bpp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) u32 surface_depth;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) * struct drm_fb_helper_funcs - driver callbacks for the fbdev emulation library
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) * Driver callbacks used by the fbdev emulation helper library.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) struct drm_fb_helper_funcs {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) * @fb_probe:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) * Driver callback to allocate and initialize the fbdev info structure.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) * Furthermore it also needs to allocate the DRM framebuffer used to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) * back the fbdev.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) * This callback is mandatory.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) * RETURNS:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) * The driver should return 0 on success and a negative error code on
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) * failure.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) int (*fb_probe)(struct drm_fb_helper *helper,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) struct drm_fb_helper_surface_size *sizes);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) * struct drm_fb_helper - main structure to emulate fbdev on top of KMS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) * @fb: Scanout framebuffer object
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) * @dev: DRM device
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) * @funcs: driver callbacks for fb helper
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) * @fbdev: emulated fbdev device info struct
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) * @pseudo_palette: fake palette of 16 colors
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) * @dirty_clip: clip rectangle used with deferred_io to accumulate damage to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) * the screen buffer
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) * @dirty_lock: spinlock protecting @dirty_clip
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) * @dirty_work: worker used to flush the framebuffer
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) * @resume_work: worker used during resume if the console lock is already taken
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) * This is the main structure used by the fbdev helpers. Drivers supporting
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) * fbdev emulation should embedded this into their overall driver structure.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) * Drivers must also fill out a &struct drm_fb_helper_funcs with a few
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) * operations.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) struct drm_fb_helper {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) * @client:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) * DRM client used by the generic fbdev emulation.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) struct drm_client_dev client;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) * @buffer:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) * Framebuffer used by the generic fbdev emulation.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) struct drm_client_buffer *buffer;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) struct drm_framebuffer *fb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) struct drm_device *dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) const struct drm_fb_helper_funcs *funcs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) struct fb_info *fbdev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) u32 pseudo_palette[17];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) struct drm_clip_rect dirty_clip;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) spinlock_t dirty_lock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) struct work_struct dirty_work;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) struct work_struct resume_work;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) * @lock:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) * Top-level FBDEV helper lock. This protects all internal data
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) * structures and lists, such as @connector_info and @crtc_info.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) * FIXME: fbdev emulation locking is a mess and long term we want to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) * protect all helper internal state with this lock as well as reduce
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) * core KMS locking as much as possible.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) struct mutex lock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) * @kernel_fb_list:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) * Entry on the global kernel_fb_helper_list, used for kgdb entry/exit.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) struct list_head kernel_fb_list;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) * @delayed_hotplug:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) * A hotplug was received while fbdev wasn't in control of the DRM
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) * device, i.e. another KMS master was active. The output configuration
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) * needs to be reprobe when fbdev is in control again.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) bool delayed_hotplug;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) * @deferred_setup:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) * If no outputs are connected (disconnected or unknown) the FB helper
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) * code will defer setup until at least one of the outputs shows up.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) * This field keeps track of the status so that setup can be retried
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) * at every hotplug event until it succeeds eventually.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) * Protected by @lock.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) bool deferred_setup;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) * @preferred_bpp:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) * Temporary storage for the driver's preferred BPP setting passed to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) * FB helper initialization. This needs to be tracked so that deferred
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) * FB helper setup can pass this on.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) * See also: @deferred_setup
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) int preferred_bpp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) static inline struct drm_fb_helper *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) drm_fb_helper_from_client(struct drm_client_dev *client)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) return container_of(client, struct drm_fb_helper, client);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) * define DRM_FB_HELPER_DEFAULT_OPS - helper define for drm drivers
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) * Helper define to register default implementations of drm_fb_helper
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) * functions. To be used in struct fb_ops of drm drivers.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) #define DRM_FB_HELPER_DEFAULT_OPS \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) .fb_check_var = drm_fb_helper_check_var, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) .fb_set_par = drm_fb_helper_set_par, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) .fb_setcmap = drm_fb_helper_setcmap, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) .fb_blank = drm_fb_helper_blank, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) .fb_pan_display = drm_fb_helper_pan_display, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) .fb_debug_enter = drm_fb_helper_debug_enter, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) .fb_debug_leave = drm_fb_helper_debug_leave, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) .fb_ioctl = drm_fb_helper_ioctl
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) #ifdef CONFIG_DRM_FBDEV_EMULATION
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) void drm_fb_helper_prepare(struct drm_device *dev, struct drm_fb_helper *helper,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) const struct drm_fb_helper_funcs *funcs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) int drm_fb_helper_init(struct drm_device *dev, struct drm_fb_helper *helper);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) void drm_fb_helper_fini(struct drm_fb_helper *helper);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) int drm_fb_helper_blank(int blank, struct fb_info *info);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) int drm_fb_helper_pan_display(struct fb_var_screeninfo *var,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) struct fb_info *info);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) int drm_fb_helper_set_par(struct fb_info *info);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) int drm_fb_helper_check_var(struct fb_var_screeninfo *var,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) struct fb_info *info);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) int drm_fb_helper_restore_fbdev_mode_unlocked(struct drm_fb_helper *fb_helper);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) struct fb_info *drm_fb_helper_alloc_fbi(struct drm_fb_helper *fb_helper);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) void drm_fb_helper_unregister_fbi(struct drm_fb_helper *fb_helper);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) void drm_fb_helper_fill_info(struct fb_info *info,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) struct drm_fb_helper *fb_helper,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) struct drm_fb_helper_surface_size *sizes);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) void drm_fb_helper_deferred_io(struct fb_info *info,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) struct list_head *pagelist);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) ssize_t drm_fb_helper_sys_read(struct fb_info *info, char __user *buf,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) size_t count, loff_t *ppos);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) ssize_t drm_fb_helper_sys_write(struct fb_info *info, const char __user *buf,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) size_t count, loff_t *ppos);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) void drm_fb_helper_sys_fillrect(struct fb_info *info,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) const struct fb_fillrect *rect);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) void drm_fb_helper_sys_copyarea(struct fb_info *info,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) const struct fb_copyarea *area);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) void drm_fb_helper_sys_imageblit(struct fb_info *info,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) const struct fb_image *image);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) void drm_fb_helper_cfb_fillrect(struct fb_info *info,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) const struct fb_fillrect *rect);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) void drm_fb_helper_cfb_copyarea(struct fb_info *info,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) const struct fb_copyarea *area);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) void drm_fb_helper_cfb_imageblit(struct fb_info *info,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) const struct fb_image *image);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) void drm_fb_helper_set_suspend(struct drm_fb_helper *fb_helper, bool suspend);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) void drm_fb_helper_set_suspend_unlocked(struct drm_fb_helper *fb_helper,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) bool suspend);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) int drm_fb_helper_setcmap(struct fb_cmap *cmap, struct fb_info *info);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) int drm_fb_helper_ioctl(struct fb_info *info, unsigned int cmd,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) unsigned long arg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) int drm_fb_helper_hotplug_event(struct drm_fb_helper *fb_helper);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) int drm_fb_helper_initial_config(struct drm_fb_helper *fb_helper, int bpp_sel);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) int drm_fb_helper_debug_enter(struct fb_info *info);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) int drm_fb_helper_debug_leave(struct fb_info *info);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) void drm_fb_helper_lastclose(struct drm_device *dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) void drm_fb_helper_output_poll_changed(struct drm_device *dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) void drm_fbdev_generic_setup(struct drm_device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) unsigned int preferred_bpp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) static inline void drm_fb_helper_prepare(struct drm_device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) struct drm_fb_helper *helper,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) const struct drm_fb_helper_funcs *funcs)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) static inline int drm_fb_helper_init(struct drm_device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) struct drm_fb_helper *helper)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) /* So drivers can use it to free the struct */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) helper->dev = dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) dev->fb_helper = helper;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) static inline void drm_fb_helper_fini(struct drm_fb_helper *helper)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) if (helper && helper->dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) helper->dev->fb_helper = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) static inline int drm_fb_helper_blank(int blank, struct fb_info *info)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) static inline int drm_fb_helper_pan_display(struct fb_var_screeninfo *var,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) struct fb_info *info)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) static inline int drm_fb_helper_set_par(struct fb_info *info)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) static inline int drm_fb_helper_check_var(struct fb_var_screeninfo *var,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) struct fb_info *info)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) static inline int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) drm_fb_helper_restore_fbdev_mode_unlocked(struct drm_fb_helper *fb_helper)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) static inline struct fb_info *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) drm_fb_helper_alloc_fbi(struct drm_fb_helper *fb_helper)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) static inline void drm_fb_helper_unregister_fbi(struct drm_fb_helper *fb_helper)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) static inline void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) drm_fb_helper_fill_info(struct fb_info *info,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) struct drm_fb_helper *fb_helper,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) struct drm_fb_helper_surface_size *sizes)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) static inline int drm_fb_helper_setcmap(struct fb_cmap *cmap,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) struct fb_info *info)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) static inline int drm_fb_helper_ioctl(struct fb_info *info, unsigned int cmd,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) unsigned long arg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) static inline void drm_fb_helper_deferred_io(struct fb_info *info,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) struct list_head *pagelist)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) static inline int drm_fb_helper_defio_init(struct drm_fb_helper *fb_helper)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) static inline ssize_t drm_fb_helper_sys_read(struct fb_info *info,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) char __user *buf, size_t count,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) loff_t *ppos)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371) static inline ssize_t drm_fb_helper_sys_write(struct fb_info *info,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) const char __user *buf,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) size_t count, loff_t *ppos)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) static inline void drm_fb_helper_sys_fillrect(struct fb_info *info,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379) const struct fb_fillrect *rect)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) static inline void drm_fb_helper_sys_copyarea(struct fb_info *info,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) const struct fb_copyarea *area)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388) static inline void drm_fb_helper_sys_imageblit(struct fb_info *info,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389) const struct fb_image *image)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) static inline void drm_fb_helper_cfb_fillrect(struct fb_info *info,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) const struct fb_fillrect *rect)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) static inline void drm_fb_helper_cfb_copyarea(struct fb_info *info,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) const struct fb_copyarea *area)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403) static inline void drm_fb_helper_cfb_imageblit(struct fb_info *info,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404) const struct fb_image *image)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408) static inline void drm_fb_helper_set_suspend(struct drm_fb_helper *fb_helper,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409) bool suspend)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413) static inline void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414) drm_fb_helper_set_suspend_unlocked(struct drm_fb_helper *fb_helper, bool suspend)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418) static inline int drm_fb_helper_hotplug_event(struct drm_fb_helper *fb_helper)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423) static inline int drm_fb_helper_initial_config(struct drm_fb_helper *fb_helper,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424) int bpp_sel)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429) static inline int drm_fb_helper_debug_enter(struct fb_info *info)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434) static inline int drm_fb_helper_debug_leave(struct fb_info *info)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439) static inline void drm_fb_helper_lastclose(struct drm_device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443) static inline void drm_fb_helper_output_poll_changed(struct drm_device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 446)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 447) static inline void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 448) drm_fbdev_generic_setup(struct drm_device *dev, unsigned int preferred_bpp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 449) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 450) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 451)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 452) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 453)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 454) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 455) * drm_fb_helper_remove_conflicting_framebuffers - remove firmware-configured framebuffers
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 456) * @a: memory range, users of which are to be removed
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 457) * @name: requesting driver name
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 458) * @primary: also kick vga16fb if present
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 459) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 460) * This function removes framebuffer devices (initialized by firmware/bootloader)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 461) * which use memory range described by @a. If @a is NULL all such devices are
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 462) * removed.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 463) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 464) static inline int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 465) drm_fb_helper_remove_conflicting_framebuffers(struct apertures_struct *a,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 466) const char *name, bool primary)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 467) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 468) #if IS_REACHABLE(CONFIG_FB)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 469) return remove_conflicting_framebuffers(a, name, primary);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 470) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 471) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 472) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 473) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 474)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 475) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 476) * drm_fb_helper_remove_conflicting_pci_framebuffers - remove firmware-configured framebuffers for PCI devices
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 477) * @pdev: PCI device
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 478) * @name: requesting driver name
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 479) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 480) * This function removes framebuffer devices (eg. initialized by firmware)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 481) * using memory range configured for any of @pdev's memory bars.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 482) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 483) * The function assumes that PCI device with shadowed ROM drives a primary
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 484) * display and so kicks out vga16fb.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 485) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 486) static inline int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 487) drm_fb_helper_remove_conflicting_pci_framebuffers(struct pci_dev *pdev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 488) const char *name)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 489) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 490) int ret = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 491)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 492) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 493) * WARNING: Apparently we must kick fbdev drivers before vgacon,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 494) * otherwise the vga fbdev driver falls over.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 495) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 496) #if IS_REACHABLE(CONFIG_FB)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 497) ret = remove_conflicting_pci_framebuffers(pdev, name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 498) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 499) if (ret == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 500) ret = vga_remove_vgacon(pdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 501) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 502) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 503)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 504) #endif
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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