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Lee Lup Yuen 2023-08-15 09:04:55 +08:00
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@ -5004,13 +5004,7 @@ TODO: What's inside the modetest app? [modetest.c](https://gitlab.freedesktop.or
# Call Flow for DC8200 Display Controller Driver # Call Flow for DC8200 Display Controller Driver
TODO Let's walk through the code in the Linux Driver for DC8200 Display Controller, to understand how we'll implement it in NuttX.
[dc_bind](https://github.com/starfive-tech/linux/blob/JH7110_VisionFive2_devel/drivers/gpu/drm/verisilicon/vs_dc.c#L1421-L1573) calls..
- dc_init, which calls...
- dc_hw_init
```c ```c
struct platform_driver dc_platform_driver = { struct platform_driver dc_platform_driver = {
@ -5020,7 +5014,22 @@ struct platform_driver dc_platform_driver = {
[(Source)](https://github.com/starfive-tech/linux/blob/JH7110_VisionFive2_devel/drivers/gpu/drm/verisilicon/vs_dc.c#L1642-L1649) [(Source)](https://github.com/starfive-tech/linux/blob/JH7110_VisionFive2_devel/drivers/gpu/drm/verisilicon/vs_dc.c#L1642-L1649)
[dc_probe](https://github.com/starfive-tech/linux/blob/JH7110_VisionFive2_devel/drivers/gpu/drm/verisilicon/vs_dc.c#L1595-L1629) Probe for Display Controller: [dc_probe](https://github.com/starfive-tech/linux/blob/JH7110_VisionFive2_devel/drivers/gpu/drm/verisilicon/vs_dc.c#L1595-L1629)
```c
const struct component_ops dc_component_ops = {
.bind = dc_bind,
.unbind = dc_unbind,
};
```
[(Source)](https://github.com/starfive-tech/linux/blob/JH7110_VisionFive2_devel/drivers/gpu/drm/verisilicon/vs_dc.c#L1584-L1587)
Bind to Display Controller: [dc_bind](https://github.com/starfive-tech/linux/blob/JH7110_VisionFive2_devel/drivers/gpu/drm/verisilicon/vs_dc.c#L1421-L1573) calls..
- [dc_init](https://github.com/starfive-tech/linux/blob/JH7110_VisionFive2_devel/drivers/gpu/drm/verisilicon/vs_dc.c#L644-L722), which calls...
- [dc_hw_init](https://github.com/starfive-tech/linux/blob/JH7110_VisionFive2_devel/drivers/gpu/drm/verisilicon/vs_dc_hw.c#L1301-L1361)
```c ```c
static const struct vs_crtc_funcs dc_crtc_funcs = { static const struct vs_crtc_funcs dc_crtc_funcs = {
@ -5036,6 +5045,8 @@ static const struct vs_crtc_funcs dc_crtc_funcs = {
[(Source)](https://github.com/starfive-tech/linux/blob/JH7110_VisionFive2_devel/drivers/gpu/drm/verisilicon/vs_dc.c#L1400-L1408) [(Source)](https://github.com/starfive-tech/linux/blob/JH7110_VisionFive2_devel/drivers/gpu/drm/verisilicon/vs_dc.c#L1400-L1408)
Enable Display Pipeline: [vs_dc_enable](https://github.com/starfive-tech/linux/blob/JH7110_VisionFive2_devel/drivers/gpu/drm/verisilicon/vs_dc.c#L740-L826)
```c ```c
static const struct vs_plane_funcs dc_plane_funcs = { static const struct vs_plane_funcs dc_plane_funcs = {
.update = vs_dc_update_plane, .update = vs_dc_update_plane,
@ -5046,7 +5057,41 @@ static const struct vs_plane_funcs dc_plane_funcs = {
[(Source)](https://github.com/starfive-tech/linux/blob/JH7110_VisionFive2_devel/drivers/gpu/drm/verisilicon/vs_dc.c#L1410-L1414) [(Source)](https://github.com/starfive-tech/linux/blob/JH7110_VisionFive2_devel/drivers/gpu/drm/verisilicon/vs_dc.c#L1410-L1414)
[DRM Internals](https://www.kernel.org/doc/html/v4.15/gpu/drm-internals.html) Update Display Plane: [vs_dc_update_plane](https://github.com/starfive-tech/linux/blob/JH7110_VisionFive2_devel/drivers/gpu/drm/verisilicon/vs_dc.c#L1262-L1280) calls...
- [update_plane](https://github.com/starfive-tech/linux/blob/JH7110_VisionFive2_devel/drivers/gpu/drm/verisilicon/vs_dc.c#L1153-L1196)
Refer to [Linux DRM Internals](https://www.kernel.org/doc/html/v4.15/gpu/drm-internals.html)
# Call Flow for DC8200 Display Hardware Driver
TODO
Display Planes Info: [dc_hw_planes](https://github.com/starfive-tech/linux/blob/JH7110_VisionFive2_devel/drivers/gpu/drm/verisilicon/vs_dc_hw.c#L472-L1084)
Display Controller Info: [dc_info](https://github.com/starfive-tech/linux/blob/JH7110_VisionFive2_devel/drivers/gpu/drm/verisilicon/vs_dc_hw.c#L1086-L1150)
Update Display Plane: [dc_hw_update_plane](https://github.com/starfive-tech/linux/blob/JH7110_VisionFive2_devel/drivers/gpu/drm/verisilicon/vs_dc_hw.c#L1368-L1399)
```c
static const struct dc_hw_funcs hw_func = {
.gamma = &gamma_ex_commit,
.plane = &plane_ex_commit,
.display = setup_display_ex,
};
```
[(Source)](https://github.com/starfive-tech/linux/blob/JH7110_VisionFive2_devel/drivers/gpu/drm/verisilicon/vs_dc_hw.c#L2032-L2036)
Setup Display: [setup_display_ex](https://github.com/starfive-tech/linux/blob/JH7110_VisionFive2_devel/drivers/gpu/drm/verisilicon/vs_dc_hw.c#L1971-L2030)
[setup_display](https://github.com/starfive-tech/linux/blob/JH7110_VisionFive2_devel/drivers/gpu/drm/verisilicon/vs_dc_hw.c#L1865-L1969)
Commit Display Plane: [plane_ex_commit](https://github.com/starfive-tech/linux/blob/JH7110_VisionFive2_devel/drivers/gpu/drm/verisilicon/vs_dc_hw.c#L1768-L1863)
[plane_commit](https://github.com/starfive-tech/linux/blob/JH7110_VisionFive2_devel/drivers/gpu/drm/verisilicon/vs_dc_hw.c#L1576-L1766)
Commit Display: [dc_hw_commit](https://github.com/starfive-tech/linux/blob/JH7110_VisionFive2_devel/drivers/gpu/drm/verisilicon/vs_dc_hw.c#L2038-L2076)
# Call Flow for HDMI Controller Driver # Call Flow for HDMI Controller Driver