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kernel: implement tty driver system

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This commit is contained in:
max 🍓
2023-06-10 21:41:07 +01:00
parent e10f11af88
commit d09ad5838e
9 changed files with 198 additions and 54 deletions
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22
dev/fb.c
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@@ -48,14 +48,25 @@ kern_status_t framebuffer_device_register(struct device *dev)
return object_namespace_create_link(global_namespace(), path, &dev->dev_base);
}
kern_status_t framebuffer_get_varinfo(struct device *dev, struct framebuffer_varinfo *varinfo)
kern_status_t framebuffer_get_fixedinfo(struct device *dev, struct framebuffer_fixedinfo *out)
{
struct framebuffer_device *fbdev = FRAMEBUFFER_DEVICE(dev);
if (!fbdev) {
return KERN_INVALID_ARGUMENT;
}
memcpy(varinfo, &fbdev->fb_varinfo, sizeof *varinfo);
memcpy(out, &fbdev->fb_fixedinfo, sizeof *out);
return KERN_OK;
}
kern_status_t framebuffer_get_varinfo(struct device *dev, struct framebuffer_varinfo *out)
{
struct framebuffer_device *fbdev = FRAMEBUFFER_DEVICE(dev);
if (!fbdev) {
return KERN_INVALID_ARGUMENT;
}
memcpy(out, &fbdev->fb_varinfo, sizeof *out);
return KERN_OK;
}
@@ -70,7 +81,12 @@ kern_status_t framebuffer_set_varinfo(struct device *dev, const struct framebuff
return KERN_UNSUPPORTED;
}
return fbdev->fb_ops->set_varinfo(dev, varinfo);
kern_status_t status = fbdev->fb_ops->set_varinfo(dev, varinfo);
if (status == KERN_OK) {
memcpy(&fbdev->fb_varinfo, varinfo, sizeof *varinfo);
}
return status;
}
struct device_type_ops framebuffer_type_ops = {