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hw/display/bcm2835_fb: Validate bcm2835_fb_mbox_push() config 

Refactor bcm2835_fb_mbox_push() to work by calling
bcm2835_fb_validate_config() and bcm2835_fb_reconfigure(),
so that config set this way is also validated.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20180814144436.679-9-peter.maydell@linaro.org
master
Peter Maydell 2018-08-24 13:17:50 +01:00
parent f8add62c0c
commit cfb7ba9838
1 changed files with 31 additions and 32 deletions
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63
hw/display/bcm2835_fb.c
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@ -248,38 +248,6 @@ void bcm2835_fb_validate_config(BCM2835FBConfig *config)
}
}
static void bcm2835_fb_mbox_push(BCM2835FBState *s, uint32_t value)
{
uint32_t pitch;
uint32_t size;
value &= ~0xf;
s->lock = true;
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->config.base = s->vcram_base | (value & 0xc0000000);
s->config.base += BCM2835_FB_OFFSET;
pitch = bcm2835_fb_get_pitch(&s->config);
size = bcm2835_fb_get_size(&s->config);
stl_le_phys(&s->dma_as, value + 16, pitch);
stl_le_phys(&s->dma_as, value + 32, s->config.base);
stl_le_phys(&s->dma_as, value + 36, size);
s->invalidate = true;
qemu_console_resize(s->con, s->config.xres, s->config.yres);
s->lock = false;
}
void bcm2835_fb_reconfigure(BCM2835FBState *s, BCM2835FBConfig *newconfig)
{
s->lock = true;
@ -291,6 +259,37 @@ void bcm2835_fb_reconfigure(BCM2835FBState *s, BCM2835FBConfig *newconfig)
s->lock = false;
}
static void bcm2835_fb_mbox_push(BCM2835FBState *s, uint32_t value)
{
uint32_t pitch;
uint32_t size;
BCM2835FBConfig newconf;
value &= ~0xf;
newconf.xres = ldl_le_phys(&s->dma_as, value);
newconf.yres = ldl_le_phys(&s->dma_as, value + 4);
newconf.xres_virtual = ldl_le_phys(&s->dma_as, value + 8);
newconf.yres_virtual = ldl_le_phys(&s->dma_as, value + 12);
newconf.bpp = ldl_le_phys(&s->dma_as, value + 20);
newconf.xoffset = ldl_le_phys(&s->dma_as, value + 24);
newconf.yoffset = ldl_le_phys(&s->dma_as, value + 28);
newconf.base = s->vcram_base | (value & 0xc0000000);
newconf.base += BCM2835_FB_OFFSET;
bcm2835_fb_validate_config(&newconf);
pitch = bcm2835_fb_get_pitch(&newconf);
size = bcm2835_fb_get_size(&newconf);
stl_le_phys(&s->dma_as, value + 16, pitch);
stl_le_phys(&s->dma_as, value + 32, newconf.base);
stl_le_phys(&s->dma_as, value + 36, size);
bcm2835_fb_reconfigure(s, &newconf);
}
static uint64_t bcm2835_fb_read(void *opaque, hwaddr offset, unsigned size)
{
BCM2835FBState *s = opaque;