From 5e9c2a8dac19d5df0c541ea23df654062de917c0 Mon Sep 17 00:00:00 2001 From: Grégory ESTRADE Date: Wed, 16 Mar 2016 17:06:01 +0000 Subject: bcm2835_fb: add framebuffer device for Raspberry Pi The framebuffer occupies the upper portion of memory (64MiB by default), but it can only be controlled/configured via a system mailbox or property channel (to be added by a subsequent patch). Signed-off-by: Grégory ESTRADE Reviewed-by: Peter Maydell Signed-off-by: Andrew Baumann Message-id: 1457467526-8840-4-git-send-email-Andrew.Baumann@microsoft.com [AB: added Windows (BGR) support and cleanup/refactoring for upstream submission] Signed-off-by: Andrew Baumann Reviewed-by: Peter Maydell Signed-off-by: Peter Maydell --- include/hw/display/bcm2835_fb.h | 47 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 47 insertions(+) create mode 100644 include/hw/display/bcm2835_fb.h (limited to 'include/hw/display') diff --git a/include/hw/display/bcm2835_fb.h b/include/hw/display/bcm2835_fb.h new file mode 100644 index 0000000000..9a12d7afa2 --- /dev/null +++ b/include/hw/display/bcm2835_fb.h @@ -0,0 +1,47 @@ +/* + * Raspberry Pi emulation (c) 2012 Gregory Estrade + * Upstreaming code cleanup [including bcm2835_*] (c) 2013 Jan Petrous + * + * Rasperry Pi 2 emulation and refactoring Copyright (c) 2015, Microsoft + * Written by Andrew Baumann + * + * This code is licensed under the GNU GPLv2 and later. + */ + +#ifndef BCM2835_FB_H +#define BCM2835_FB_H + +#include "hw/sysbus.h" +#include "exec/address-spaces.h" +#include "ui/console.h" + +#define TYPE_BCM2835_FB "bcm2835-fb" +#define BCM2835_FB(obj) OBJECT_CHECK(BCM2835FBState, (obj), TYPE_BCM2835_FB) + +typedef struct { + /*< private >*/ + SysBusDevice busdev; + /*< public >*/ + + uint32_t vcram_base, vcram_size; + MemoryRegion *dma_mr; + AddressSpace dma_as; + MemoryRegion iomem; + MemoryRegionSection fbsection; + QemuConsole *con; + qemu_irq mbox_irq; + + bool lock, invalidate, pending; + uint32_t xres, yres; + uint32_t xres_virtual, yres_virtual; + uint32_t xoffset, yoffset; + uint32_t bpp; + uint32_t base, pitch, size; + uint32_t pixo, alpha; +} BCM2835FBState; + +void bcm2835_fb_reconfigure(BCM2835FBState *s, uint32_t *xres, uint32_t *yres, + uint32_t *xoffset, uint32_t *yoffset, uint32_t *bpp, + uint32_t *pixo, uint32_t *alpha); + +#endif -- cgit v1.2.3-55-g7522