Example #1
0
int omapfb_ioctl(struct fb_info *fbi, unsigned int cmd, unsigned long arg)
{
	struct omapfb_info *ofbi = FB2OFB(fbi);
	struct omapfb2_device *fbdev = ofbi->fbdev;
	struct omap_dss_device *display = fb2display(fbi);

	union {
		struct omapfb_update_window_old	uwnd_o;
		struct omapfb_update_window	uwnd;
		struct omapfb_plane_info	plane_info;
		struct omapfb_caps		caps;
		struct omapfb_mem_info          mem_info;
		struct omapfb_color_key		color_key;
		struct omapfb_ovl_colormode	ovl_colormode;
		enum omapfb_update_mode		update_mode;
		int test_num;
		struct omapfb_memory_read	memory_read;
		struct omapfb_vram_info		vram_info;
		struct omapfb_tearsync_info	tearsync_info;
		struct omapfb_display_info	display_info;
	} p;

	int r = 0;

	switch (cmd) {
	case OMAPFB_SYNC_GFX:
		DBG("ioctl SYNC_GFX\n");
		if (!display || !display->driver->sync) {
			/* DSS1 never returns an error here, so we neither */
			/*r = -EINVAL;*/
			break;
		}

		r = display->driver->sync(display);
		break;

	case OMAPFB_UPDATE_WINDOW_OLD:
		DBG("ioctl UPDATE_WINDOW_OLD\n");
		if (!display || !display->driver->update) {
			r = -EINVAL;
			break;
		}

		if (copy_from_user(&p.uwnd_o,
					(void __user *)arg,
					sizeof(p.uwnd_o))) {
			r = -EFAULT;
			break;
		}

		r = omapfb_update_window_nolock(fbi, p.uwnd_o.x, p.uwnd_o.y,
				p.uwnd_o.width, p.uwnd_o.height);
		break;

	case OMAPFB_UPDATE_WINDOW:
		DBG("ioctl UPDATE_WINDOW\n");
		if (!display || !display->driver->update) {
			r = -EINVAL;
			break;
		}

		if (copy_from_user(&p.uwnd, (void __user *)arg,
					sizeof(p.uwnd))) {
			r = -EFAULT;
			break;
		}

		r = omapfb_update_window_nolock(fbi, p.uwnd.x, p.uwnd.y,
				p.uwnd.width, p.uwnd.height);
		break;

	case OMAPFB_SETUP_PLANE:
		DBG("ioctl SETUP_PLANE\n");
		if (copy_from_user(&p.plane_info, (void __user *)arg,
					sizeof(p.plane_info)))
			r = -EFAULT;
		else
			r = omapfb_setup_plane(fbi, &p.plane_info);
		break;

	case OMAPFB_QUERY_PLANE:
		DBG("ioctl QUERY_PLANE\n");
		r = omapfb_query_plane(fbi, &p.plane_info);
		if (r < 0)
			break;
		if (copy_to_user((void __user *)arg, &p.plane_info,
					sizeof(p.plane_info)))
			r = -EFAULT;
		break;

	case OMAPFB_SETUP_MEM:
		DBG("ioctl SETUP_MEM\n");
		if (copy_from_user(&p.mem_info, (void __user *)arg,
					sizeof(p.mem_info)))
			r = -EFAULT;
		else
			r = omapfb_setup_mem(fbi, &p.mem_info);
		break;

	case OMAPFB_QUERY_MEM:
		DBG("ioctl QUERY_MEM\n");
		r = omapfb_query_mem(fbi, &p.mem_info);
		if (r < 0)
			break;
		if (copy_to_user((void __user *)arg, &p.mem_info,
					sizeof(p.mem_info)))
			r = -EFAULT;
		break;

	case OMAPFB_GET_CAPS:
		DBG("ioctl GET_CAPS\n");
		if (!display) {
			r = -EINVAL;
			break;
		}

		memset(&p.caps, 0, sizeof(p.caps));
		if (display->caps & OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE)
			p.caps.ctrl |= OMAPFB_CAPS_MANUAL_UPDATE;
		if (display->caps & OMAP_DSS_DISPLAY_CAP_TEAR_ELIM)
			p.caps.ctrl |= OMAPFB_CAPS_TEARSYNC;

		if (copy_to_user((void __user *)arg, &p.caps, sizeof(p.caps)))
			r = -EFAULT;
		break;

	case OMAPFB_GET_OVERLAY_COLORMODE:
		DBG("ioctl GET_OVERLAY_COLORMODE\n");
		if (copy_from_user(&p.ovl_colormode, (void __user *)arg,
				   sizeof(p.ovl_colormode))) {
			r = -EFAULT;
			break;
		}
		r = omapfb_get_ovl_colormode(fbdev, &p.ovl_colormode);
		if (r < 0)
			break;
		if (copy_to_user((void __user *)arg, &p.ovl_colormode,
				 sizeof(p.ovl_colormode)))
			r = -EFAULT;
		break;

	case OMAPFB_SET_UPDATE_MODE:
		DBG("ioctl SET_UPDATE_MODE\n");
		if (get_user(p.update_mode, (int __user *)arg))
			r = -EFAULT;
		else
			r = omapfb_set_update_mode(fbi, p.update_mode);
		break;

	case OMAPFB_GET_UPDATE_MODE:
		DBG("ioctl GET_UPDATE_MODE\n");
		r = omapfb_get_update_mode(fbi, &p.update_mode);
		if (r)
			break;
		if (put_user(p.update_mode,
					(enum omapfb_update_mode __user *)arg))
			r = -EFAULT;
		break;

	case OMAPFB_SET_COLOR_KEY:
		DBG("ioctl SET_COLOR_KEY\n");
		if (copy_from_user(&p.color_key, (void __user *)arg,
				   sizeof(p.color_key)))
			r = -EFAULT;
		else
			r = omapfb_set_color_key(fbi, &p.color_key);
		break;

	case OMAPFB_GET_COLOR_KEY:
		DBG("ioctl GET_COLOR_KEY\n");
		r = omapfb_get_color_key(fbi, &p.color_key);
		if (r)
			break;
		if (copy_to_user((void __user *)arg, &p.color_key,
				 sizeof(p.color_key)))
			r = -EFAULT;
		break;

	case OMAPFB_WAITFORVSYNC:
		DBG("ioctl WAITFORVSYNC\n");
		if (!display) {
			r = -EINVAL;
			break;
		}

		r = display->manager->wait_for_vsync(display->manager);
		break;

	case OMAPFB_WAITFORGO:
		DBG("ioctl WAITFORGO\n");
		if (!display) {
			r = -EINVAL;
			break;
		}

		r = omapfb_wait_for_go(fbi);
		break;

	/* LCD and CTRL tests do the same thing for backward
	 * compatibility */
	case OMAPFB_LCD_TEST:
		DBG("ioctl LCD_TEST\n");
		if (get_user(p.test_num, (int __user *)arg)) {
			r = -EFAULT;
			break;
		}
		if (!display || !display->driver->run_test) {
			r = -EINVAL;
			break;
		}

		r = display->driver->run_test(display, p.test_num);

		break;

	case OMAPFB_CTRL_TEST:
		DBG("ioctl CTRL_TEST\n");
		if (get_user(p.test_num, (int __user *)arg)) {
			r = -EFAULT;
			break;
		}
		if (!display || !display->driver->run_test) {
			r = -EINVAL;
			break;
		}

		r = display->driver->run_test(display, p.test_num);

		break;

	case OMAPFB_MEMORY_READ:
		DBG("ioctl MEMORY_READ\n");

		if (copy_from_user(&p.memory_read, (void __user *)arg,
					sizeof(p.memory_read))) {
			r = -EFAULT;
			break;
		}

		r = omapfb_memory_read(fbi, &p.memory_read);

		break;

	case OMAPFB_GET_VRAM_INFO: {
		unsigned long vram, free, largest;

		DBG("ioctl GET_VRAM_INFO\n");

		omap_vram_get_info(&vram, &free, &largest);
		p.vram_info.total = vram;
		p.vram_info.free = free;
		p.vram_info.largest_free_block = largest;

		if (copy_to_user((void __user *)arg, &p.vram_info,
					sizeof(p.vram_info)))
			r = -EFAULT;
		break;
	}

	case OMAPFB_SET_TEARSYNC: {
		DBG("ioctl SET_TEARSYNC\n");

		if (copy_from_user(&p.tearsync_info, (void __user *)arg,
					sizeof(p.tearsync_info))) {
			r = -EFAULT;
			break;
		}

		if (!display->driver->enable_te) {
			r = -ENODEV;
			break;
		}

		r = display->driver->enable_te(display,
				!!p.tearsync_info.enabled);

		break;
	}

	case OMAPFB_GET_DISPLAY_INFO: {
		u16 xres, yres;

		DBG("ioctl GET_DISPLAY_INFO\n");

		if (display == NULL) {
			r = -ENODEV;
			break;
		}

		display->driver->get_resolution(display, &xres, &yres);

		p.display_info.xres = xres;
		p.display_info.yres = yres;
		p.display_info.width = 0;
		p.display_info.height = 0;

		if (copy_to_user((void __user *)arg, &p.display_info,
					sizeof(p.display_info)))
			r = -EFAULT;
		break;
	}

	default:
		dev_err(fbdev->dev, "Unknown ioctl 0x%x\n", cmd);
		r = -EINVAL;
	}

	if (r < 0)
		DBG("ioctl failed: %d\n", r);

	return r;
}
int omapfb_ioctl(struct fb_info *fbi, unsigned int cmd, unsigned long arg)
{
	struct omapfb_info *ofbi = FB2OFB(fbi);
	struct omapfb2_device *fbdev = ofbi->fbdev;
	struct omap_dss_device *display = fb2display(fbi);

	union {
		struct omapfb_update_window_old	uwnd_o;
		struct omapfb_update_window	uwnd;
		struct omapfb_plane_info	plane_info;
		struct omapfb_caps		caps;
		struct omapfb_mem_info          mem_info;
		struct omapfb_color_key		color_key;
		struct omapfb_ovl_colormode	ovl_colormode;
		enum omapfb_update_mode		update_mode;
		int test_num;
		struct omapfb_memory_read	memory_read;
	} p;

	int r = 0;

	switch (cmd) {
	case OMAPFB_SYNC_GFX:
		DBG("ioctl SYNC_GFX\n");
		if (!display || !display->sync) {
			/* DSS1 never returns an error here, so we neither */
			/*r = -EINVAL;*/
			break;
		}

		r = display->sync(display);
		break;

	case OMAPFB_UPDATE_WINDOW_OLD:
		DBG("ioctl UPDATE_WINDOW_OLD\n");
		if (!display || !display->update) {
			r = -EINVAL;
			break;
		}

		if (copy_from_user(&p.uwnd_o,
					(void __user *)arg,
					sizeof(p.uwnd_o))) {
			r = -EFAULT;
			break;
		}

		r = omapfb_update_window(fbi, p.uwnd_o.x, p.uwnd_o.y,
				p.uwnd_o.width, p.uwnd_o.height);
		break;

	case OMAPFB_UPDATE_WINDOW:
		DBG("ioctl UPDATE_WINDOW\n");
		if (!display || !display->update) {
			r = -EINVAL;
			break;
		}

		if (copy_from_user(&p.uwnd, (void __user *)arg,
					sizeof(p.uwnd))) {
			r = -EFAULT;
			break;
		}

		r = omapfb_update_window(fbi, p.uwnd.x, p.uwnd.y,
				p.uwnd.width, p.uwnd.height);
		break;

	case OMAPFB_SETUP_PLANE:
		DBG("ioctl SETUP_PLANE\n");
		if (copy_from_user(&p.plane_info, (void __user *)arg,
					sizeof(p.plane_info)))
			r = -EFAULT;
		else
			r = omapfb_setup_plane(fbi, &p.plane_info);
		break;

	case OMAPFB_QUERY_PLANE:
		DBG("ioctl QUERY_PLANE\n");
		r = omapfb_query_plane(fbi, &p.plane_info);
		if (r < 0)
			break;
		if (copy_to_user((void __user *)arg, &p.plane_info,
					sizeof(p.plane_info)))
			r = -EFAULT;
		break;

	case OMAPFB_SETUP_MEM:
		DBG("ioctl SETUP_MEM\n");
		if (copy_from_user(&p.mem_info, (void __user *)arg,
					sizeof(p.mem_info)))
			r = -EFAULT;
		else
			r = omapfb_setup_mem(fbi, &p.mem_info);
		break;

	case OMAPFB_QUERY_MEM:
		DBG("ioctl QUERY_MEM\n");
		r = omapfb_query_mem(fbi, &p.mem_info);
		if (r < 0)
			break;
		if (copy_to_user((void __user *)arg, &p.mem_info,
					sizeof(p.mem_info)))
			r = -EFAULT;
		break;

	case OMAPFB_GET_CAPS:
		DBG("ioctl GET_CAPS\n");
		if (!display) {
			r = -EINVAL;
			break;
		}

		memset(&p.caps, 0, sizeof(p.caps));
		p.caps.ctrl = display->caps;

		if (copy_to_user((void __user *)arg, &p.caps, sizeof(p.caps)))
			r = -EFAULT;
		break;

	case OMAPFB_GET_OVERLAY_COLORMODE:
		DBG("ioctl GET_OVERLAY_COLORMODE\n");
		if (copy_from_user(&p.ovl_colormode, (void __user *)arg,
				   sizeof(p.ovl_colormode))) {
			r = -EFAULT;
			break;
		}
		r = omapfb_get_ovl_colormode(fbdev, &p.ovl_colormode);
		if (r < 0)
			break;
		if (copy_to_user((void __user *)arg, &p.ovl_colormode,
				 sizeof(p.ovl_colormode)))
			r = -EFAULT;
		break;

	case OMAPFB_SET_UPDATE_MODE:
		DBG("ioctl SET_UPDATE_MODE\n");
		if (get_user(p.update_mode, (int __user *)arg))
			r = -EFAULT;
		else
			r = omapfb_set_update_mode(fbi, p.update_mode);
		break;

	case OMAPFB_GET_UPDATE_MODE:
		DBG("ioctl GET_UPDATE_MODE\n");
		r = omapfb_get_update_mode(fbi, &p.update_mode);
		if (r)
			break;
		if (put_user(p.update_mode,
					(enum omapfb_update_mode __user *)arg))
			r = -EFAULT;
		break;

	case OMAPFB_SET_COLOR_KEY:
		DBG("ioctl SET_COLOR_KEY\n");
		if (copy_from_user(&p.color_key, (void __user *)arg,
				   sizeof(p.color_key)))
			r = -EFAULT;
		else
			r = omapfb_set_color_key(fbi, &p.color_key);
		break;

	case OMAPFB_GET_COLOR_KEY:
		DBG("ioctl GET_COLOR_KEY\n");
		r = omapfb_get_color_key(fbi, &p.color_key);
		if (r)
			break;
		if (copy_to_user((void __user *)arg, &p.color_key,
				 sizeof(p.color_key)))
			r = -EFAULT;
		break;

	case OMAPFB_WAITFORVSYNC:
		DBG("ioctl WAITFORVSYNC\n");
		if (!display) {
			r = -EINVAL;
			break;
		}

		r = display->wait_vsync(display);
		break;

	case OMAPFB_WAITFORGO:
		DBG("ioctl WAITFORGO\n");
		if (!display) {
			r = -EINVAL;
			break;
		}

		r = omapfb_wait_for_go(fbi);
		break;

	/* LCD and CTRL tests do the same thing for backward
	 * compatibility */
	case OMAPFB_LCD_TEST:
		DBG("ioctl LCD_TEST\n");
		if (get_user(p.test_num, (int __user *)arg)) {
			r = -EFAULT;
			break;
		}
		if (!display || !display->run_test) {
			r = -EINVAL;
			break;
		}

		r = display->run_test(display, p.test_num);

		break;

	case OMAPFB_CTRL_TEST:
		DBG("ioctl CTRL_TEST\n");
		if (get_user(p.test_num, (int __user *)arg)) {
			r = -EFAULT;
			break;
		}
		if (!display || !display->run_test) {
			r = -EINVAL;
			break;
		}

		r = display->run_test(display, p.test_num);

		break;

	case OMAPFB_MEMORY_READ:
		DBG("ioctl MEMORY_READ\n");

		if (copy_from_user(&p.memory_read, (void __user *)arg,
					sizeof(p.memory_read))) {
			r = -EFAULT;
			break;
		}

		r = omapfb_memory_read(fbi, &p.memory_read);

		break;

	default:
		dev_err(fbdev->dev, "Unknown ioctl 0x%x\n", cmd);
		r = -EINVAL;
	}

	if (r < 0)
		DBG("ioctl failed: %d\n", r);

	return r;
}