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Diffstat (limited to 'qemu/hw/display/bcm2835_fb.c')
-rw-r--r--qemu/hw/display/bcm2835_fb.c425
1 files changed, 0 insertions, 425 deletions
diff --git a/qemu/hw/display/bcm2835_fb.c b/qemu/hw/display/bcm2835_fb.c
deleted file mode 100644
index 506f1d3d9..000000000
--- a/qemu/hw/display/bcm2835_fb.c
+++ /dev/null
@@ -1,425 +0,0 @@
-/*
- * Raspberry Pi emulation (c) 2012 Gregory Estrade
- * Refactoring for Pi2 Copyright (c) 2015, Microsoft. Written by Andrew Baumann.
- * This code is licensed under the GNU GPLv2 and later.
- *
- * Heavily based on milkymist-vgafb.c, copyright terms below:
- * QEMU model of the Milkymist VGA framebuffer.
- *
- * Copyright (c) 2010-2012 Michael Walle <michael@walle.cc>
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, see <http://www.gnu.org/licenses/>.
- *
- */
-
-#include "qemu/osdep.h"
-#include "qapi/error.h"
-#include "hw/display/bcm2835_fb.h"
-#include "hw/display/framebuffer.h"
-#include "ui/pixel_ops.h"
-#include "hw/misc/bcm2835_mbox_defs.h"
-
-#define DEFAULT_VCRAM_SIZE 0x4000000
-#define BCM2835_FB_OFFSET 0x00100000
-
-static void fb_invalidate_display(void *opaque)
-{
- BCM2835FBState *s = BCM2835_FB(opaque);
-
- s->invalidate = true;
-}
-
-static void draw_line_src16(void *opaque, uint8_t *dst, const uint8_t *src,
- int width, int deststep)
-{
- BCM2835FBState *s = opaque;
- uint16_t rgb565;
- uint32_t rgb888;
- uint8_t r, g, b;
- DisplaySurface *surface = qemu_console_surface(s->con);
- int bpp = surface_bits_per_pixel(surface);
-
- while (width--) {
- switch (s->bpp) {
- case 8:
- /* lookup palette starting at video ram base
- * TODO: cache translation, rather than doing this each time!
- */
- rgb888 = ldl_le_phys(&s->dma_as, s->vcram_base + (*src << 2));
- r = (rgb888 >> 0) & 0xff;
- g = (rgb888 >> 8) & 0xff;
- b = (rgb888 >> 16) & 0xff;
- src++;
- break;
- case 16:
- rgb565 = lduw_le_p(src);
- r = ((rgb565 >> 11) & 0x1f) << 3;
- g = ((rgb565 >> 5) & 0x3f) << 2;
- b = ((rgb565 >> 0) & 0x1f) << 3;
- src += 2;
- break;
- case 24:
- rgb888 = ldl_le_p(src);
- r = (rgb888 >> 0) & 0xff;
- g = (rgb888 >> 8) & 0xff;
- b = (rgb888 >> 16) & 0xff;
- src += 3;
- break;
- case 32:
- rgb888 = ldl_le_p(src);
- r = (rgb888 >> 0) & 0xff;
- g = (rgb888 >> 8) & 0xff;
- b = (rgb888 >> 16) & 0xff;
- src += 4;
- break;
- default:
- r = 0;
- g = 0;
- b = 0;
- break;
- }
-
- if (s->pixo == 0) {
- /* swap to BGR pixel format */
- uint8_t tmp = r;
- r = b;
- b = tmp;
- }
-
- switch (bpp) {
- case 8:
- *dst++ = rgb_to_pixel8(r, g, b);
- break;
- case 15:
- *(uint16_t *)dst = rgb_to_pixel15(r, g, b);
- dst += 2;
- break;
- case 16:
- *(uint16_t *)dst = rgb_to_pixel16(r, g, b);
- dst += 2;
- break;
- case 24:
- rgb888 = rgb_to_pixel24(r, g, b);
- *dst++ = rgb888 & 0xff;
- *dst++ = (rgb888 >> 8) & 0xff;
- *dst++ = (rgb888 >> 16) & 0xff;
- break;
- case 32:
- *(uint32_t *)dst = rgb_to_pixel32(r, g, b);
- dst += 4;
- break;
- default:
- return;
- }
- }
-}
-
-static void fb_update_display(void *opaque)
-{
- BCM2835FBState *s = opaque;
- DisplaySurface *surface = qemu_console_surface(s->con);
- int first = 0;
- int last = 0;
- int src_width = 0;
- int dest_width = 0;
-
- if (s->lock || !s->xres) {
- return;
- }
-
- src_width = s->xres * (s->bpp >> 3);
- dest_width = s->xres;
-
- switch (surface_bits_per_pixel(surface)) {
- case 0:
- return;
- case 8:
- break;
- case 15:
- dest_width *= 2;
- break;
- case 16:
- dest_width *= 2;
- break;
- case 24:
- dest_width *= 3;
- break;
- case 32:
- dest_width *= 4;
- break;
- default:
- hw_error("bcm2835_fb: bad color depth\n");
- break;
- }
-
- if (s->invalidate) {
- framebuffer_update_memory_section(&s->fbsection, s->dma_mr, s->base,
- s->yres, src_width);
- }
-
- framebuffer_update_display(surface, &s->fbsection, s->xres, s->yres,
- src_width, dest_width, 0, s->invalidate,
- draw_line_src16, s, &first, &last);
-
- if (first >= 0) {
- dpy_gfx_update(s->con, 0, first, s->xres, last - first + 1);
- }
-
- s->invalidate = false;
-}
-
-static void bcm2835_fb_mbox_push(BCM2835FBState *s, uint32_t value)
-{
- value &= ~0xf;
-
- s->lock = true;
-
- s->xres = ldl_le_phys(&s->dma_as, value);
- s->yres = ldl_le_phys(&s->dma_as, value + 4);
- s->xres_virtual = ldl_le_phys(&s->dma_as, value + 8);
- s->yres_virtual = ldl_le_phys(&s->dma_as, value + 12);
- s->bpp = ldl_le_phys(&s->dma_as, value + 20);
- s->xoffset = ldl_le_phys(&s->dma_as, value + 24);
- s->yoffset = ldl_le_phys(&s->dma_as, value + 28);
-
- s->base = s->vcram_base | (value & 0xc0000000);
- s->base += BCM2835_FB_OFFSET;
-
- /* TODO - Manage properly virtual resolution */
-
- s->pitch = s->xres * (s->bpp >> 3);
- s->size = s->yres * s->pitch;
-
- stl_le_phys(&s->dma_as, value + 16, s->pitch);
- stl_le_phys(&s->dma_as, value + 32, s->base);
- stl_le_phys(&s->dma_as, value + 36, s->size);
-
- s->invalidate = true;
- qemu_console_resize(s->con, s->xres, s->yres);
- s->lock = false;
-}
-
-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)
-{
- s->lock = true;
-
- /* TODO: input validation! */
- if (xres) {
- s->xres = *xres;
- }
- if (yres) {
- s->yres = *yres;
- }
- if (xoffset) {
- s->xoffset = *xoffset;
- }
- if (yoffset) {
- s->yoffset = *yoffset;
- }
- if (bpp) {
- s->bpp = *bpp;
- }
- if (pixo) {
- s->pixo = *pixo;
- }
- if (alpha) {
- s->alpha = *alpha;
- }
-
- /* TODO - Manage properly virtual resolution */
-
- s->pitch = s->xres * (s->bpp >> 3);
- s->size = s->yres * s->pitch;
-
- s->invalidate = true;
- qemu_console_resize(s->con, s->xres, s->yres);
- s->lock = false;
-}
-
-static uint64_t bcm2835_fb_read(void *opaque, hwaddr offset, unsigned size)
-{
- BCM2835FBState *s = opaque;
- uint32_t res = 0;
-
- switch (offset) {
- case MBOX_AS_DATA:
- res = MBOX_CHAN_FB;
- s->pending = false;
- qemu_set_irq(s->mbox_irq, 0);
- break;
-
- case MBOX_AS_PENDING:
- res = s->pending;
- break;
-
- default:
- qemu_log_mask(LOG_GUEST_ERROR, "%s: Bad offset %"HWADDR_PRIx"\n",
- __func__, offset);
- return 0;
- }
-
- return res;
-}
-
-static void bcm2835_fb_write(void *opaque, hwaddr offset, uint64_t value,
- unsigned size)
-{
- BCM2835FBState *s = opaque;
-
- switch (offset) {
- case MBOX_AS_DATA:
- /* bcm2835_mbox should check our pending status before pushing */
- assert(!s->pending);
- s->pending = true;
- bcm2835_fb_mbox_push(s, value);
- qemu_set_irq(s->mbox_irq, 1);
- break;
-
- default:
- qemu_log_mask(LOG_GUEST_ERROR, "%s: Bad offset %"HWADDR_PRIx"\n",
- __func__, offset);
- return;
- }
-}
-
-static const MemoryRegionOps bcm2835_fb_ops = {
- .read = bcm2835_fb_read,
- .write = bcm2835_fb_write,
- .endianness = DEVICE_NATIVE_ENDIAN,
- .valid.min_access_size = 4,
- .valid.max_access_size = 4,
-};
-
-static const VMStateDescription vmstate_bcm2835_fb = {
- .name = TYPE_BCM2835_FB,
- .version_id = 1,
- .minimum_version_id = 1,
- .fields = (VMStateField[]) {
- VMSTATE_BOOL(lock, BCM2835FBState),
- VMSTATE_BOOL(invalidate, BCM2835FBState),
- VMSTATE_BOOL(pending, BCM2835FBState),
- VMSTATE_UINT32(xres, BCM2835FBState),
- VMSTATE_UINT32(yres, BCM2835FBState),
- VMSTATE_UINT32(xres_virtual, BCM2835FBState),
- VMSTATE_UINT32(yres_virtual, BCM2835FBState),
- VMSTATE_UINT32(xoffset, BCM2835FBState),
- VMSTATE_UINT32(yoffset, BCM2835FBState),
- VMSTATE_UINT32(bpp, BCM2835FBState),
- VMSTATE_UINT32(base, BCM2835FBState),
- VMSTATE_UINT32(pitch, BCM2835FBState),
- VMSTATE_UINT32(size, BCM2835FBState),
- VMSTATE_UINT32(pixo, BCM2835FBState),
- VMSTATE_UINT32(alpha, BCM2835FBState),
- VMSTATE_END_OF_LIST()
- }
-};
-
-static const GraphicHwOps vgafb_ops = {
- .invalidate = fb_invalidate_display,
- .gfx_update = fb_update_display,
-};
-
-static void bcm2835_fb_init(Object *obj)
-{
- BCM2835FBState *s = BCM2835_FB(obj);
-
- memory_region_init_io(&s->iomem, obj, &bcm2835_fb_ops, s, TYPE_BCM2835_FB,
- 0x10);
- sysbus_init_mmio(SYS_BUS_DEVICE(s), &s->iomem);
- sysbus_init_irq(SYS_BUS_DEVICE(s), &s->mbox_irq);
-}
-
-static void bcm2835_fb_reset(DeviceState *dev)
-{
- BCM2835FBState *s = BCM2835_FB(dev);
-
- s->pending = false;
-
- s->xres_virtual = s->xres;
- s->yres_virtual = s->yres;
- s->xoffset = 0;
- s->yoffset = 0;
- s->base = s->vcram_base + BCM2835_FB_OFFSET;
- s->pitch = s->xres * (s->bpp >> 3);
- s->size = s->yres * s->pitch;
-
- s->invalidate = true;
- s->lock = false;
-}
-
-static void bcm2835_fb_realize(DeviceState *dev, Error **errp)
-{
- BCM2835FBState *s = BCM2835_FB(dev);
- Error *err = NULL;
- Object *obj;
-
- if (s->vcram_base == 0) {
- error_setg(errp, "%s: required vcram-base property not set", __func__);
- return;
- }
-
- obj = object_property_get_link(OBJECT(dev), "dma-mr", &err);
- if (obj == NULL) {
- error_setg(errp, "%s: required dma-mr link not found: %s",
- __func__, error_get_pretty(err));
- return;
- }
-
- s->dma_mr = MEMORY_REGION(obj);
- address_space_init(&s->dma_as, s->dma_mr, NULL);
-
- bcm2835_fb_reset(dev);
-
- s->con = graphic_console_init(dev, 0, &vgafb_ops, s);
- qemu_console_resize(s->con, s->xres, s->yres);
-}
-
-static Property bcm2835_fb_props[] = {
- DEFINE_PROP_UINT32("vcram-base", BCM2835FBState, vcram_base, 0),/*required*/
- DEFINE_PROP_UINT32("vcram-size", BCM2835FBState, vcram_size,
- DEFAULT_VCRAM_SIZE),
- DEFINE_PROP_UINT32("xres", BCM2835FBState, xres, 640),
- DEFINE_PROP_UINT32("yres", BCM2835FBState, yres, 480),
- DEFINE_PROP_UINT32("bpp", BCM2835FBState, bpp, 16),
- DEFINE_PROP_UINT32("pixo", BCM2835FBState, pixo, 1), /* 1=RGB, 0=BGR */
- DEFINE_PROP_UINT32("alpha", BCM2835FBState, alpha, 2), /* alpha ignored */
- DEFINE_PROP_END_OF_LIST()
-};
-
-static void bcm2835_fb_class_init(ObjectClass *klass, void *data)
-{
- DeviceClass *dc = DEVICE_CLASS(klass);
-
- dc->props = bcm2835_fb_props;
- dc->realize = bcm2835_fb_realize;
- dc->reset = bcm2835_fb_reset;
- dc->vmsd = &vmstate_bcm2835_fb;
-}
-
-static TypeInfo bcm2835_fb_info = {
- .name = TYPE_BCM2835_FB,
- .parent = TYPE_SYS_BUS_DEVICE,
- .instance_size = sizeof(BCM2835FBState),
- .class_init = bcm2835_fb_class_init,
- .instance_init = bcm2835_fb_init,
-};
-
-static void bcm2835_fb_register_types(void)
-{
- type_register_static(&bcm2835_fb_info);
-}
-
-type_init(bcm2835_fb_register_types)