Hi Yucai,
On 27/4/26 14:47, Peter Maydell wrote:
From: Yucai Liu <[email protected]>
Implement a basic i.MX6UL LCDIF controller model with MMIO registers,
frame-done interrupt behavior, and framebuffer-backed display updates
for RGB565 and XRGB8888 input formats.
Place the LCDIF device under hw/display and build it via a dedicated
CONFIG_IMX6UL_LCDIF symbol. Model register fields with
registerfields.h helpers and provide migration support via vmstate.
Signed-off-by: Yucai Liu <[email protected]>
Message-id: [email protected]
Reviewed-by: Peter Maydell <[email protected]>
Signed-off-by: Peter Maydell <[email protected]>
---
MAINTAINERS | 2 +
hw/display/Kconfig | 4 +
hw/display/imx6ul_lcdif.c | 453 ++++++++++++++++++++++++++++++
hw/display/meson.build | 1 +
include/hw/display/imx6ul_lcdif.h | 37 +++
5 files changed, 497 insertions(+)
create mode 100644 hw/display/imx6ul_lcdif.c
create mode 100644 include/hw/display/imx6ul_lcdif.h
diff --git a/hw/display/imx6ul_lcdif.c b/hw/display/imx6ul_lcdif.c
+static void imx6ul_lcdif_reset(DeviceState *dev)
+{
+ IMX6ULLCDIFState *s = IMX6UL_LCDIF(dev);
+
+ memset(s->regs, 0, sizeof(s->regs));
+ s->regs[IMX6UL_LCDIF_REG_CTRL1] = LCDIF_RESET_CTRL1;
+ s->fb_base = 0;
+ s->src_width = 0;
+ s->rows = 0;
+ s->src_bpp = 0;
+ s->invalidate = true;
+ timer_del(s->frame_timer);
+ imx6ul_lcdif_update_irq(s);
+}
+static void imx6ul_lcdif_class_init(ObjectClass *klass, const void *data)
+{
+ DeviceClass *dc = DEVICE_CLASS(klass);
+
+ dc->realize = imx6ul_lcdif_realize;
+ dc->unrealize = imx6ul_lcdif_unrealize;
+ dc->vmsd = &vmstate_imx6ul_lcdif;
+ device_class_set_legacy_reset(dc, imx6ul_lcdif_reset);
Please do not use the legacy API. See for example this commit
to convert to the newer API:
https://gitlab.com/qemu-project/qemu/-/commit/ce788d3740f
+ dc->desc = "i.MX6UL LCDIF";
+}
