static uint32_t vmsvga_value_read(void *opaque, uint32_t address) { uint32_t caps; struct vmsvga_state_s *s = opaque; switch (s->index) { case SVGA_REG_ID: return s->svgaid; case SVGA_REG_ENABLE: return s->enable; case SVGA_REG_WIDTH: return s->width; case SVGA_REG_HEIGHT: return s->height; case SVGA_REG_MAX_WIDTH: return SVGA_MAX_WIDTH; case SVGA_REG_MAX_HEIGHT: return SVGA_MAX_HEIGHT; case SVGA_REG_DEPTH: return s->depth; case SVGA_REG_BITS_PER_PIXEL: return (s->depth + 7) & ~7; case SVGA_REG_PSEUDOCOLOR: return 0x0; case SVGA_REG_RED_MASK: return s->wred; case SVGA_REG_GREEN_MASK: return s->wgreen; case SVGA_REG_BLUE_MASK: return s->wblue; case SVGA_REG_BYTES_PER_LINE: return ((s->depth + 7) >> 3) * s->new_width; case SVGA_REG_FB_START: { struct pci_vmsvga_state_s *pci_vmsvga = container_of(s, struct pci_vmsvga_state_s, chip); return pci_get_bar_addr(&pci_vmsvga->card, 1); } case SVGA_REG_FB_OFFSET: return 0x0; case SVGA_REG_VRAM_SIZE: return s->vga.vram_size; case SVGA_REG_FB_SIZE: return s->fb_size; case SVGA_REG_CAPABILITIES: caps = SVGA_CAP_NONE; #ifdef HW_RECT_ACCEL caps |= SVGA_CAP_RECT_COPY; #endif #ifdef HW_FILL_ACCEL caps |= SVGA_CAP_RECT_FILL; #endif #ifdef HW_MOUSE_ACCEL if (dpy_cursor_define_supported(s->vga.ds)) { caps |= SVGA_CAP_CURSOR | SVGA_CAP_CURSOR_BYPASS_2 | SVGA_CAP_CURSOR_BYPASS; } #endif return caps; case SVGA_REG_MEM_START: { struct pci_vmsvga_state_s *pci_vmsvga = container_of(s, struct pci_vmsvga_state_s, chip); return pci_get_bar_addr(&pci_vmsvga->card, 2); } case SVGA_REG_MEM_SIZE: return s->fifo_size; case SVGA_REG_CONFIG_DONE: return s->config; case SVGA_REG_SYNC: case SVGA_REG_BUSY: return s->syncing; case SVGA_REG_GUEST_ID: return s->guest; case SVGA_REG_CURSOR_ID: return s->cursor.id; case SVGA_REG_CURSOR_X: return s->cursor.x; case SVGA_REG_CURSOR_Y: return s->cursor.x; case SVGA_REG_CURSOR_ON: return s->cursor.on; case SVGA_REG_HOST_BITS_PER_PIXEL: return (s->depth + 7) & ~7; case SVGA_REG_SCRATCH_SIZE: return s->scratch_size; case SVGA_REG_MEM_REGS: case SVGA_REG_NUM_DISPLAYS: case SVGA_REG_PITCHLOCK: case SVGA_PALETTE_BASE ... SVGA_PALETTE_END: return 0; default: if (s->index >= SVGA_SCRATCH_BASE && s->index < SVGA_SCRATCH_BASE + s->scratch_size) return s->scratch[s->index - SVGA_SCRATCH_BASE]; printf("%s: Bad register %02x\n", __FUNCTION__, s->index); } return 0; }