src/graphics/display/drivers/intel-i915/macros.h

// Copyright 2017 The Fuchsia Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef SRC_GRAPHICS_DISPLAY_DRIVERS_INTEL_I915_MACROS_H_
#define SRC_GRAPHICS_DISPLAY_DRIVERS_INTEL_I915_MACROS_H_

#include <lib/ddk/debug.h>

#define WAIT_ON(COND, N, UNITS)                            \
  ({                                                       \
    int count = 0;                                         \
    while (!(COND) && ++count <= N)                        \
      zx_nanosleep(zx_deadline_after(ZX_##UNITS##SEC(1))); \
    count <= N;                                            \
  })

#define WAIT_ON_US(COND, N) WAIT_ON(COND, N, U)
#define WAIT_ON_MS(COND, N) WAIT_ON(COND, N, M)

#endif  // SRC_GRAPHICS_DISPLAY_DRIVERS_INTEL_I915_MACROS_H_