diff options
Diffstat (limited to 'hw/vigs/vigs_device.c')
| -rw-r--r-- | hw/vigs/vigs_device.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/hw/vigs/vigs_device.c b/hw/vigs/vigs_device.c index b71a57bfc2..7d0919a8cb 100644 --- a/hw/vigs/vigs_device.c +++ b/hw/vigs/vigs_device.c @@ -43,6 +43,7 @@ #include "qemu/main-loop.h" #include "qemu/error-report.h" #include "qapi/error.h" +#include "sysemu/sysemu.h" #define PCI_VENDOR_ID_VIGS 0x19B2 #define PCI_DEVICE_ID_VIGS 0x1011 @@ -82,6 +83,9 @@ typedef struct VIGSState uint32_t reg_con; uint32_t reg_int; + + // for VBLANK emulation + QEMUTimer *vblank_timer; } VIGSState; #define TYPE_VIGS_DEVICE "vigs" @@ -342,6 +346,24 @@ static struct vigs_capture_ops capture_ops = .process_captured = vigs_process_captured, }; +static void vblank_update(void *opaque) { + VIGSState *s = opaque; + uint64_t last_update; + + if (s->reg_con & VIGS_REG_CON_VBLANK_ENABLE) { + s->reg_int |= VIGS_REG_INT_VBLANK_PENDING; + vigs_update_irq(s); + } + + last_update = qemu_clock_get_ms(QEMU_CLOCK_REALTIME); + timer_mod(s->vblank_timer, last_update + GUI_REFRESH_INTERVAL_DEFAULT); +} + +static void vigs_vblank_timer_init(VIGSState *s) { + s->vblank_timer = timer_new_ms(QEMU_CLOCK_REALTIME, vblank_update, s); + timer_mod(s->vblank_timer, qemu_clock_get_ms(QEMU_CLOCK_REALTIME)); +} + static int vigs_device_init(PCIDevice *dev) { VIGSState *s = DO_UPCAST(VIGSState, dev, dev); @@ -503,6 +525,12 @@ static int vigs_device_init(PCIDevice *dev) } } + // XXX: VBLANK emulation + if (display_type == DT_NONE || display_type == DT_NOGRAPHIC) { + VIGS_LOG_INFO("VIGS vblank emulation enabled"); + vigs_vblank_timer_init(s); + } + VIGS_LOG_INFO("VIGS initialized"); VIGS_LOG_DEBUG("vram_size = %u", s->vram_size); |