drivers/mailbox/sandbox-mbox-test.c

   1 /*
   2  * Copyright (c) 2016, NVIDIA CORPORATION.
   3  *
   4  * SPDX-License-Identifier: GPL-2.0
   5  */
   6
   7 #include <common.h>
   8 #include <dm.h>
   9 #include <mailbox_client.h>
  10 #include <asm/io.h>
  11
  12 struct sandbox_mbox_test {
  13         struct mbox_chan chan;
  14 };
  15
  16 int sandbox_mbox_test_get(struct udevice *dev)
  17 {
  18         struct sandbox_mbox_test *sbmt = dev_get_priv(dev);
  19
  20         return mbox_get_by_name(dev, "test", &sbmt->chan);
  21 }
  22
  23 int sandbox_mbox_test_send(struct udevice *dev, uint32_t msg)
  24 {
  25         struct sandbox_mbox_test *sbmt = dev_get_priv(dev);
  26
  27         return mbox_send(&sbmt->chan, &msg);
  28 }
  29
  30 int sandbox_mbox_test_recv(struct udevice *dev, uint32_t *msg)
  31 {
  32         struct sandbox_mbox_test *sbmt = dev_get_priv(dev);
  33
  34         return mbox_recv(&sbmt->chan, msg, 100);
  35 }
  36
  37 int sandbox_mbox_test_free(struct udevice *dev)
  38 {
  39         struct sandbox_mbox_test *sbmt = dev_get_priv(dev);
  40
  41         return mbox_free(&sbmt->chan);
  42 }
  43
  44 static const struct udevice_id sandbox_mbox_test_ids[] = {
  45         { .compatible = "sandbox,mbox-test" },
  46         { }
  47 };
  48
  49 U_BOOT_DRIVER(sandbox_mbox_test) = {
  50         .name = "sandbox_mbox_test",
  51         .id = UCLASS_MISC,
  52         .of_match = sandbox_mbox_test_ids,
  53         .priv_auto_alloc_size = sizeof(struct sandbox_mbox_test),
  54 };