include/hw/display/bcm2835_fb.h

   1 /*
   2  * Raspberry Pi emulation (c) 2012 Gregory Estrade
   3  * Upstreaming code cleanup [including bcm2835_*] (c) 2013 Jan Petrous
   4  *
   5  * Rasperry Pi 2 emulation and refactoring Copyright (c) 2015, Microsoft
   6  * Written by Andrew Baumann
   7  *
   8  * This code is licensed under the GNU GPLv2 and later.
   9  */
  10
  11 #ifndef BCM2835_FB_H
  12 #define BCM2835_FB_H
  13
  14 #include "hw/sysbus.h"
  15 #include "ui/console.h"
  16
  17 #define TYPE_BCM2835_FB "bcm2835-fb"
  18 #define BCM2835_FB(obj) OBJECT_CHECK(BCM2835FBState, (obj), TYPE_BCM2835_FB)
  19
  20 /*
  21  * Configuration information about the fb which the guest can program
  22  * via the mailbox property interface.
  23  */
  24 typedef struct {
  25     uint32_t xres, yres;
  26     uint32_t xres_virtual, yres_virtual;
  27     uint32_t xoffset, yoffset;
  28     uint32_t bpp;
  29     uint32_t base;
  30     uint32_t pixo;
  31     uint32_t alpha;
  32 } BCM2835FBConfig;
  33
  34 typedef struct {
  35     /*< private >*/
  36     SysBusDevice busdev;
  37     /*< public >*/
  38
  39     uint32_t vcram_base, vcram_size;
  40     MemoryRegion *dma_mr;
  41     AddressSpace dma_as;
  42     MemoryRegion iomem;
  43     MemoryRegionSection fbsection;
  44     QemuConsole *con;
  45     qemu_irq mbox_irq;
  46
  47     bool lock, invalidate, pending;
  48
  49     BCM2835FBConfig config;
  50
  51     /* These are just cached values calculated from the config settings */
  52     uint32_t size;
  53     uint32_t pitch;
  54 } BCM2835FBState;
  55
  56 void bcm2835_fb_reconfigure(BCM2835FBState *s, uint32_t *xres, uint32_t *yres,
  57                             uint32_t *xoffset, uint32_t *yoffset, uint32_t *bpp,
  58                             uint32_t *pixo, uint32_t *alpha);
  59
  60 #endif