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-rw-r--r--hw/display/bcm2835_fb.c114
-rw-r--r--hw/misc/bcm2835_property.c28
-rw-r--r--include/hw/display/bcm2835_fb.h26
3 files changed, 94 insertions, 74 deletions
diff --git a/hw/display/bcm2835_fb.c b/hw/display/bcm2835_fb.c
index 3355f4c..0ffad49 100644
--- a/hw/display/bcm2835_fb.c
+++ b/hw/display/bcm2835_fb.c
@@ -52,7 +52,7 @@ static void draw_line_src16(void *opaque, uint8_t *dst, const uint8_t *src,
int bpp = surface_bits_per_pixel(surface);
while (width--) {
- switch (s->bpp) {
+ switch (s->config.bpp) {
case 8:
/* lookup palette starting at video ram base
* TODO: cache translation, rather than doing this each time!
@@ -91,7 +91,7 @@ static void draw_line_src16(void *opaque, uint8_t *dst, const uint8_t *src,
break;
}
- if (s->pixo == 0) {
+ if (s->config.pixo == 0) {
/* swap to BGR pixel format */
uint8_t tmp = r;
r = b;
@@ -135,12 +135,12 @@ static void fb_update_display(void *opaque)
int src_width = 0;
int dest_width = 0;
- if (s->lock || !s->xres) {
+ if (s->lock || !s->config.xres) {
return;
}
- src_width = s->xres * (s->bpp >> 3);
- dest_width = s->xres;
+ src_width = s->config.xres * (s->config.bpp >> 3);
+ dest_width = s->config.xres;
switch (surface_bits_per_pixel(surface)) {
case 0:
@@ -165,16 +165,18 @@ static void fb_update_display(void *opaque)
}
if (s->invalidate) {
- framebuffer_update_memory_section(&s->fbsection, s->dma_mr, s->base,
- s->yres, src_width);
+ framebuffer_update_memory_section(&s->fbsection, s->dma_mr,
+ s->config.base,
+ s->config.yres, src_width);
}
- framebuffer_update_display(surface, &s->fbsection, s->xres, s->yres,
+ framebuffer_update_display(surface, &s->fbsection,
+ s->config.xres, s->config.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);
+ dpy_gfx_update(s->con, 0, first, s->config.xres, last - first + 1);
}
s->invalidate = false;
@@ -186,28 +188,28 @@ static void bcm2835_fb_mbox_push(BCM2835FBState *s, uint32_t value)
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->config.xres = ldl_le_phys(&s->dma_as, value);
+ s->config.yres = ldl_le_phys(&s->dma_as, value + 4);
+ s->config.xres_virtual = ldl_le_phys(&s->dma_as, value + 8);
+ s->config.yres_virtual = ldl_le_phys(&s->dma_as, value + 12);
+ s->config.bpp = ldl_le_phys(&s->dma_as, value + 20);
+ s->config.xoffset = ldl_le_phys(&s->dma_as, value + 24);
+ s->config.yoffset = ldl_le_phys(&s->dma_as, value + 28);
- s->base = s->vcram_base | (value & 0xc0000000);
- s->base += BCM2835_FB_OFFSET;
+ s->config.base = s->vcram_base | (value & 0xc0000000);
+ s->config.base += BCM2835_FB_OFFSET;
/* TODO - Manage properly virtual resolution */
- s->pitch = s->xres * (s->bpp >> 3);
- s->size = s->yres * s->pitch;
+ s->pitch = s->config.xres * (s->config.bpp >> 3);
+ s->size = s->config.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 + 32, s->config.base);
stl_le_phys(&s->dma_as, value + 36, s->size);
s->invalidate = true;
- qemu_console_resize(s->con, s->xres, s->yres);
+ qemu_console_resize(s->con, s->config.xres, s->config.yres);
s->lock = false;
}
@@ -219,34 +221,34 @@ void bcm2835_fb_reconfigure(BCM2835FBState *s, uint32_t *xres, uint32_t *yres,
/* TODO: input validation! */
if (xres) {
- s->xres = *xres;
+ s->config.xres = *xres;
}
if (yres) {
- s->yres = *yres;
+ s->config.yres = *yres;
}
if (xoffset) {
- s->xoffset = *xoffset;
+ s->config.xoffset = *xoffset;
}
if (yoffset) {
- s->yoffset = *yoffset;
+ s->config.yoffset = *yoffset;
}
if (bpp) {
- s->bpp = *bpp;
+ s->config.bpp = *bpp;
}
if (pixo) {
- s->pixo = *pixo;
+ s->config.pixo = *pixo;
}
if (alpha) {
- s->alpha = *alpha;
+ s->config.alpha = *alpha;
}
/* TODO - Manage properly virtual resolution */
- s->pitch = s->xres * (s->bpp >> 3);
- s->size = s->yres * s->pitch;
+ s->pitch = s->config.xres * (s->config.bpp >> 3);
+ s->size = s->config.yres * s->pitch;
s->invalidate = true;
- qemu_console_resize(s->con, s->xres, s->yres);
+ qemu_console_resize(s->con, s->config.xres, s->config.yres);
s->lock = false;
}
@@ -312,18 +314,18 @@ static const VMStateDescription vmstate_bcm2835_fb = {
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(config.xres, BCM2835FBState),
+ VMSTATE_UINT32(config.yres, BCM2835FBState),
+ VMSTATE_UINT32(config.xres_virtual, BCM2835FBState),
+ VMSTATE_UINT32(config.yres_virtual, BCM2835FBState),
+ VMSTATE_UINT32(config.xoffset, BCM2835FBState),
+ VMSTATE_UINT32(config.yoffset, BCM2835FBState),
+ VMSTATE_UINT32(config.bpp, BCM2835FBState),
+ VMSTATE_UINT32(config.base, BCM2835FBState),
VMSTATE_UINT32(pitch, BCM2835FBState),
VMSTATE_UINT32(size, BCM2835FBState),
- VMSTATE_UINT32(pixo, BCM2835FBState),
- VMSTATE_UINT32(alpha, BCM2835FBState),
+ VMSTATE_UINT32(config.pixo, BCM2835FBState),
+ VMSTATE_UINT32(config.alpha, BCM2835FBState),
VMSTATE_END_OF_LIST()
}
};
@@ -349,13 +351,13 @@ static void bcm2835_fb_reset(DeviceState *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->config.xres_virtual = s->config.xres;
+ s->config.yres_virtual = s->config.yres;
+ s->config.xoffset = 0;
+ s->config.yoffset = 0;
+ s->config.base = s->vcram_base + BCM2835_FB_OFFSET;
+ s->pitch = s->config.xres * (s->config.bpp >> 3);
+ s->size = s->config.yres * s->pitch;
s->invalidate = true;
s->lock = false;
@@ -385,18 +387,20 @@ static void bcm2835_fb_realize(DeviceState *dev, Error **errp)
bcm2835_fb_reset(dev);
s->con = graphic_console_init(dev, 0, &vgafb_ops, s);
- qemu_console_resize(s->con, s->xres, s->yres);
+ qemu_console_resize(s->con, s->config.xres, s->config.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_UINT32("xres", BCM2835FBState, config.xres, 640),
+ DEFINE_PROP_UINT32("yres", BCM2835FBState, config.yres, 480),
+ DEFINE_PROP_UINT32("bpp", BCM2835FBState, config.bpp, 16),
+ DEFINE_PROP_UINT32("pixo",
+ BCM2835FBState, config.pixo, 1), /* 1=RGB, 0=BGR */
+ DEFINE_PROP_UINT32("alpha",
+ BCM2835FBState, config.alpha, 2), /* alpha ignored */
DEFINE_PROP_END_OF_LIST()
};
diff --git a/hw/misc/bcm2835_property.c b/hw/misc/bcm2835_property.c
index 70eaafd..c79f358 100644
--- a/hw/misc/bcm2835_property.c
+++ b/hw/misc/bcm2835_property.c
@@ -141,10 +141,10 @@ static void bcm2835_property_mbox_push(BCM2835PropertyState *s, uint32_t value)
/* Frame buffer */
case 0x00040001: /* Allocate buffer */
- stl_le_phys(&s->dma_as, value + 12, s->fbdev->base);
- tmp_xres = newxres != NULL ? *newxres : s->fbdev->xres;
- tmp_yres = newyres != NULL ? *newyres : s->fbdev->yres;
- tmp_bpp = newbpp != NULL ? *newbpp : s->fbdev->bpp;
+ stl_le_phys(&s->dma_as, value + 12, s->fbdev->config.base);
+ tmp_xres = newxres != NULL ? *newxres : s->fbdev->config.xres;
+ tmp_yres = newyres != NULL ? *newyres : s->fbdev->config.yres;
+ tmp_bpp = newbpp != NULL ? *newbpp : s->fbdev->config.bpp;
stl_le_phys(&s->dma_as, value + 16,
tmp_xres * tmp_yres * tmp_bpp / 8);
resplen = 8;
@@ -157,8 +157,8 @@ static void bcm2835_property_mbox_push(BCM2835PropertyState *s, uint32_t value)
break;
case 0x00040003: /* Get display width/height */
case 0x00040004:
- tmp_xres = newxres != NULL ? *newxres : s->fbdev->xres;
- tmp_yres = newyres != NULL ? *newyres : s->fbdev->yres;
+ tmp_xres = newxres != NULL ? *newxres : s->fbdev->config.xres;
+ tmp_yres = newyres != NULL ? *newyres : s->fbdev->config.yres;
stl_le_phys(&s->dma_as, value + 12, tmp_xres);
stl_le_phys(&s->dma_as, value + 16, tmp_yres);
resplen = 8;
@@ -176,7 +176,7 @@ static void bcm2835_property_mbox_push(BCM2835PropertyState *s, uint32_t value)
resplen = 8;
break;
case 0x00040005: /* Get depth */
- tmp_bpp = newbpp != NULL ? *newbpp : s->fbdev->bpp;
+ tmp_bpp = newbpp != NULL ? *newbpp : s->fbdev->config.bpp;
stl_le_phys(&s->dma_as, value + 12, tmp_bpp);
resplen = 4;
break;
@@ -189,7 +189,7 @@ static void bcm2835_property_mbox_push(BCM2835PropertyState *s, uint32_t value)
resplen = 4;
break;
case 0x00040006: /* Get pixel order */
- tmp_pixo = newpixo != NULL ? *newpixo : s->fbdev->pixo;
+ tmp_pixo = newpixo != NULL ? *newpixo : s->fbdev->config.pixo;
stl_le_phys(&s->dma_as, value + 12, tmp_pixo);
resplen = 4;
break;
@@ -202,7 +202,7 @@ static void bcm2835_property_mbox_push(BCM2835PropertyState *s, uint32_t value)
resplen = 4;
break;
case 0x00040007: /* Get alpha */
- tmp_alpha = newalpha != NULL ? *newalpha : s->fbdev->alpha;
+ tmp_alpha = newalpha != NULL ? *newalpha : s->fbdev->config.alpha;
stl_le_phys(&s->dma_as, value + 12, tmp_alpha);
resplen = 4;
break;
@@ -215,14 +215,16 @@ static void bcm2835_property_mbox_push(BCM2835PropertyState *s, uint32_t value)
resplen = 4;
break;
case 0x00040008: /* Get pitch */
- tmp_xres = newxres != NULL ? *newxres : s->fbdev->xres;
- tmp_bpp = newbpp != NULL ? *newbpp : s->fbdev->bpp;
+ tmp_xres = newxres != NULL ? *newxres : s->fbdev->config.xres;
+ tmp_bpp = newbpp != NULL ? *newbpp : s->fbdev->config.bpp;
stl_le_phys(&s->dma_as, value + 12, tmp_xres * tmp_bpp / 8);
resplen = 4;
break;
case 0x00040009: /* Get virtual offset */
- tmp_xoffset = newxoffset != NULL ? *newxoffset : s->fbdev->xoffset;
- tmp_yoffset = newyoffset != NULL ? *newyoffset : s->fbdev->yoffset;
+ tmp_xoffset = newxoffset != NULL ?
+ *newxoffset : s->fbdev->config.xoffset;
+ tmp_yoffset = newyoffset != NULL ?
+ *newyoffset : s->fbdev->config.yoffset;
stl_le_phys(&s->dma_as, value + 12, tmp_xoffset);
stl_le_phys(&s->dma_as, value + 16, tmp_yoffset);
resplen = 8;
diff --git a/include/hw/display/bcm2835_fb.h b/include/hw/display/bcm2835_fb.h
index ae0a380..8485825 100644
--- a/include/hw/display/bcm2835_fb.h
+++ b/include/hw/display/bcm2835_fb.h
@@ -17,6 +17,20 @@
#define TYPE_BCM2835_FB "bcm2835-fb"
#define BCM2835_FB(obj) OBJECT_CHECK(BCM2835FBState, (obj), TYPE_BCM2835_FB)
+/*
+ * Configuration information about the fb which the guest can program
+ * via the mailbox property interface.
+ */
+typedef struct {
+ uint32_t xres, yres;
+ uint32_t xres_virtual, yres_virtual;
+ uint32_t xoffset, yoffset;
+ uint32_t bpp;
+ uint32_t base;
+ uint32_t pixo;
+ uint32_t alpha;
+} BCM2835FBConfig;
+
typedef struct {
/*< private >*/
SysBusDevice busdev;
@@ -31,12 +45,12 @@ typedef struct {
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;
+
+ BCM2835FBConfig config;
+
+ /* These are just cached values calculated from the config settings */
+ uint32_t size;
+ uint32_t pitch;
} BCM2835FBState;
void bcm2835_fb_reconfigure(BCM2835FBState *s, uint32_t *xres, uint32_t *yres,
generated by cgit v1.1 at 2024-11-17 23:34:16 +0000