cmd_hdmidet.c 504 B

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  1. // SPDX-License-Identifier: GPL-2.0+
  2. /*
  3. * Copyright (C) 2012 Boundary Devices Inc.
  4. */
  5. #include <common.h>
  6. #include <command.h>
  7. #include <asm/arch/imx-regs.h>
  8. #include <asm/arch/mxc_hdmi.h>
  9. #include <asm/io.h>
  10. static int do_hdmidet(struct cmd_tbl *cmdtp, int flag, int argc,
  11. char *const argv[])
  12. {
  13. struct hdmi_regs *hdmi = (struct hdmi_regs *)HDMI_ARB_BASE_ADDR;
  14. return (readb(&hdmi->phy_stat0) & HDMI_DVI_STAT) ? 0 : 1;
  15. }
  16. U_BOOT_CMD(hdmidet, 1, 1, do_hdmidet,
  17. "detect HDMI monitor",
  18. ""
  19. );