LXR uboot/test/dm/blk.c

   1/*
   2 * Copyright (C) 2015 Google, Inc
   3 *
   4 * SPDX-License-Identifier:     GPL-2.0+
   5 */
   6
   7#include <common.h>
   8#include <dm.h>
   9#include <usb.h>
  10#include <asm/state.h>
  11#include <dm/test.h>
  12#include <test/ut.h>
  13
  14DECLARE_GLOBAL_DATA_PTR;
  15
  16/* Test that block devices can be created */
  17static int dm_test_blk_base(struct unit_test_state *uts)
  18{
  19        struct udevice *blk, *usb_blk, *dev;
  20
  21        /* Make sure there are no block devices */
  22        ut_asserteq(-ENODEV, uclass_get_device_by_seq(UCLASS_BLK, 0, &blk));
  23
  24        /* Create two, one the parent of the other */
  25        ut_assertok(blk_create_device(gd->dm_root, "sandbox_host_blk", "test",
  26                                      IF_TYPE_HOST, 1, 512, 1024, &blk));
  27        ut_assertok(blk_create_device(blk, "usb_storage_blk", "test",
  28                                      IF_TYPE_USB, 3, 512, 1024, &usb_blk));
  29
  30        /* Check we can find them */
  31        ut_asserteq(-ENODEV, blk_get_device(IF_TYPE_HOST, 0, &dev));
  32        ut_assertok(blk_get_device(IF_TYPE_HOST, 1, &dev));
  33        ut_asserteq_ptr(blk, dev);
  34
  35        ut_asserteq(-ENODEV, blk_get_device(IF_TYPE_USB, 0, &dev));
  36        ut_assertok(blk_get_device(IF_TYPE_USB, 3, &dev));
  37        ut_asserteq_ptr(usb_blk, dev);
  38
  39        /* Check we can iterate */
  40        ut_assertok(blk_first_device(IF_TYPE_HOST, &dev));
  41        ut_asserteq_ptr(blk, dev);
  42        ut_asserteq(-ENODEV, blk_next_device(&dev));
  43
  44        ut_assertok(blk_first_device(IF_TYPE_USB, &dev));
  45        ut_asserteq_ptr(usb_blk, dev);
  46        ut_asserteq(-ENODEV, blk_next_device(&dev));
  47
  48        return 0;
  49}
  50DM_TEST(dm_test_blk_base, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
  51
  52static int count_blk_devices(void)
  53{
  54        struct udevice *blk;
  55        struct uclass *uc;
  56        int count = 0;
  57        int ret;
  58
  59        ret = uclass_get(UCLASS_BLK, &uc);
  60        if (ret)
  61                return ret;
  62
  63        uclass_foreach_dev(blk, uc)
  64                count++;
  65
  66        return count;
  67}
  68
  69/* Test that block devices work correctly with USB */
  70static int dm_test_blk_usb(struct unit_test_state *uts)
  71{
  72        struct udevice *usb_dev, *dev;
  73        struct blk_desc *dev_desc;
  74
  75        /* Get a flash device */
  76        state_set_skip_delays(true);
  77        ut_assertok(usb_init());
  78        ut_assertok(uclass_get_device(UCLASS_MASS_STORAGE, 0, &usb_dev));
  79        ut_assertok(blk_get_device_by_str("usb", "0", &dev_desc));
  80
  81        /* The parent should be a block device */
  82        ut_assertok(blk_get_device(IF_TYPE_USB, 0, &dev));
  83        ut_asserteq_ptr(usb_dev, dev_get_parent(dev));
  84
  85        /* Check we have one block device for each mass storage device */
  86        ut_asserteq(6, count_blk_devices());
  87
  88        /* Now go around again, making sure the old devices were unbound */
  89        ut_assertok(usb_stop());
  90        ut_assertok(usb_init());
  91        ut_asserteq(6, count_blk_devices());
  92        ut_assertok(usb_stop());
  93
  94        return 0;
  95}
  96DM_TEST(dm_test_blk_usb, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
  97
  98/* Test that we can find block devices without probing them */
  99static int dm_test_blk_find(struct unit_test_state *uts)
 100{
 101        struct udevice *blk, *dev;
 102
 103        ut_assertok(blk_create_device(gd->dm_root, "sandbox_host_blk", "test",
 104                                      IF_TYPE_HOST, 1, 512, 1024, &blk));
 105        ut_asserteq(-ENODEV, blk_find_device(IF_TYPE_HOST, 0, &dev));
 106        ut_assertok(blk_find_device(IF_TYPE_HOST, 1, &dev));
 107        ut_asserteq_ptr(blk, dev);
 108        ut_asserteq(false, device_active(dev));
 109
 110        /* Now activate it */
 111        ut_assertok(blk_get_device(IF_TYPE_HOST, 1, &dev));
 112        ut_asserteq_ptr(blk, dev);
 113        ut_asserteq(true, device_active(dev));
 114
 115        return 0;
 116}
 117DM_TEST(dm_test_blk_find, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
 118
 119/* Test that block device numbering works as expected */
 120static int dm_test_blk_devnum(struct unit_test_state *uts)
 121{
 122        struct udevice *dev, *mmc_dev, *parent;
 123        int i;
 124
 125        /*
 126         * Probe the devices, with the first one being probed last. This is the
 127         * one with no alias / sequence numnber.
 128         */
 129        ut_assertok(uclass_get_device(UCLASS_MMC, 1, &dev));
 130        ut_assertok(uclass_get_device(UCLASS_MMC, 2, &dev));
 131        ut_assertok(uclass_get_device(UCLASS_MMC, 0, &dev));
 132        for (i = 0; i < 3; i++) {
 133                struct blk_desc *desc;
 134
 135                /* Check that the bblock device is attached */
 136                ut_assertok(uclass_get_device_by_seq(UCLASS_MMC, i, &mmc_dev));
 137                ut_assertok(blk_find_device(IF_TYPE_MMC, i, &dev));
 138                parent = dev_get_parent(dev);
 139                ut_asserteq_ptr(parent, mmc_dev);
 140                ut_asserteq(trailing_strtol(mmc_dev->name), i);
 141
 142                /*
 143                 * Check that the block device devnum matches its parent's
 144                 * sequence number
 145                 */
 146                desc = dev_get_uclass_platdata(dev);
 147                ut_asserteq(desc->devnum, i);
 148        }
 149
 150        return 0;
 151}
 152DM_TEST(dm_test_blk_devnum, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
 153
 154/* Test that we can get a block from its parent */
 155static int dm_test_blk_get_from_parent(struct unit_test_state *uts)
 156{
 157        struct udevice *dev, *blk;
 158
 159        ut_assertok(uclass_get_device(UCLASS_MMC, 0, &dev));
 160        ut_assertok(blk_get_from_parent(dev, &blk));
 161
 162        ut_assertok(uclass_get_device(UCLASS_I2C, 0, &dev));
 163        ut_asserteq(-ENOTBLK, blk_get_from_parent(dev, &blk));
 164
 165        ut_assertok(uclass_get_device(UCLASS_GPIO, 0, &dev));
 166        ut_asserteq(-ENODEV, blk_get_from_parent(dev, &blk));
 167
 168        return 0;
 169}
 170DM_TEST(dm_test_blk_get_from_parent, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
 171