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
  14 DECLARE_GLOBAL_DATA_PTR;
  15
  16 /* Test that block devices can be created */
  17 static 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 }
  50 DM_TEST(dm_test_blk_base, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
  51
  52 static 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 */
  70 static 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 }
  96 DM_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 */
  99 static 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 }
 117 DM_TEST(dm_test_blk_find, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
 118
 119 /* Test that block device numbering works as expected */
 120 static 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 }
 152 DM_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 */
 155 static 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 }
 170 DM_TEST(dm_test_blk_get_from_parent, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);