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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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b8c00ac5b5
The previous patches had some unwanted side effects, I've fixed the lack of 32bpp working, and fixed up 16bpp so it should also work. this also adds the interface to allow the driver to set a preferred console depth so for example low memory rn50 can set it to 8bpp. It also catches 24bpp on cards that can't do it and forces 32bpp. Tested on r100/r600/i945. Signed-off-by: Dave Airlie <airlied@redhat.com>
112 lines
3.7 KiB
C
112 lines
3.7 KiB
C
/*
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* Copyright (c) 2006-2009 Red Hat Inc.
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* Copyright (c) 2006-2008 Intel Corporation
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* Copyright (c) 2007 Dave Airlie <airlied@linux.ie>
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*
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* DRM framebuffer helper functions
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*
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* Permission to use, copy, modify, distribute, and sell this software and its
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* documentation for any purpose is hereby granted without fee, provided that
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* the above copyright notice appear in all copies and that both that copyright
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* notice and this permission notice appear in supporting documentation, and
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* that the name of the copyright holders not be used in advertising or
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* publicity pertaining to distribution of the software without specific,
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* written prior permission. The copyright holders make no representations
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* about the suitability of this software for any purpose. It is provided "as
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* is" without express or implied warranty.
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*
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* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
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* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
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* EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
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* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
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* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
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* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
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* OF THIS SOFTWARE.
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*
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* Authors:
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* Dave Airlie <airlied@linux.ie>
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* Jesse Barnes <jesse.barnes@intel.com>
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*/
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#ifndef DRM_FB_HELPER_H
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#define DRM_FB_HELPER_H
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struct drm_fb_helper_crtc {
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uint32_t crtc_id;
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struct drm_mode_set mode_set;
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};
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struct drm_fb_helper_funcs {
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void (*gamma_set)(struct drm_crtc *crtc, u16 red, u16 green,
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u16 blue, int regno);
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void (*gamma_get)(struct drm_crtc *crtc, u16 *red, u16 *green,
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u16 *blue, int regno);
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};
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/* mode specified on the command line */
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struct drm_fb_helper_cmdline_mode {
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bool specified;
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bool refresh_specified;
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bool bpp_specified;
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int xres, yres;
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int bpp;
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int refresh;
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bool rb;
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bool interlace;
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bool cvt;
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bool margins;
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};
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struct drm_fb_helper_connector {
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struct drm_fb_helper_cmdline_mode cmdline_mode;
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};
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struct drm_fb_helper {
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struct drm_framebuffer *fb;
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struct drm_device *dev;
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struct drm_display_mode *mode;
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int crtc_count;
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struct drm_fb_helper_crtc *crtc_info;
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struct drm_fb_helper_funcs *funcs;
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int conn_limit;
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struct list_head kernel_fb_list;
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};
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int drm_fb_helper_single_fb_probe(struct drm_device *dev,
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int preferred_bpp,
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int (*fb_create)(struct drm_device *dev,
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uint32_t fb_width,
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uint32_t fb_height,
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uint32_t surface_width,
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uint32_t surface_height,
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uint32_t surface_depth,
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uint32_t surface_bpp,
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struct drm_framebuffer **fb_ptr));
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int drm_fb_helper_init_crtc_count(struct drm_fb_helper *helper, int crtc_count,
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int max_conn);
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void drm_fb_helper_free(struct drm_fb_helper *helper);
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int drm_fb_helper_blank(int blank, struct fb_info *info);
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int drm_fb_helper_pan_display(struct fb_var_screeninfo *var,
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struct fb_info *info);
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int drm_fb_helper_set_par(struct fb_info *info);
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int drm_fb_helper_check_var(struct fb_var_screeninfo *var,
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struct fb_info *info);
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int drm_fb_helper_setcolreg(unsigned regno,
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unsigned red,
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unsigned green,
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unsigned blue,
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unsigned transp,
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struct fb_info *info);
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void drm_fb_helper_restore(void);
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void drm_fb_helper_fill_var(struct fb_info *info, struct drm_framebuffer *fb,
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uint32_t fb_width, uint32_t fb_height);
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void drm_fb_helper_fill_fix(struct fb_info *info, uint32_t pitch,
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uint32_t depth);
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int drm_fb_helper_add_connector(struct drm_connector *connector);
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int drm_fb_helper_parse_command_line(struct drm_device *dev);
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int drm_fb_helper_setcmap(struct fb_cmap *cmap, struct fb_info *info);
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#endif
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