test/dm/blk.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * Copyright (C) 2015 Google, Inc
   4  */
   5
   6 #include <common.h>
   7 #include <dm.h>
   8 #include <part.h>
   9 #include <usb.h>
  10 #include <asm/state.h>
  11 #include <dm/test.h>
  12 #include <test/test.h>
  13 #include <test/ut.h>
  14
  15 DECLARE_GLOBAL_DATA_PTR;
  16
  17 /* Test that block devices can be created */
  18 static int dm_test_blk_base(struct unit_test_state *uts)
  19 {
  20         struct udevice *blk1, *blk3, *dev;
  21
  22         /* Make sure there are no block devices */
  23         ut_asserteq(-ENODEV, uclass_get_device_by_seq(UCLASS_BLK, 0, &dev));
  24
  25         /* Create two, one the parent of the other */
  26         ut_assertok(blk_create_device(gd->dm_root, "sandbox_host_blk", "test",
  27                                       IF_TYPE_HOST, 1, 512, 2, &blk1));
  28         ut_assertok(blk_create_device(blk1, "sandbox_host_blk", "test",
  29                                       IF_TYPE_HOST, 3, 512, 2, &blk3));
  30
  31         /* Check we can find them */
  32         ut_asserteq(-ENODEV, blk_get_device(IF_TYPE_HOST, 0, &dev));
  33         ut_assertok(blk_get_device(IF_TYPE_HOST, 1, &dev));
  34         ut_asserteq_ptr(blk1, dev);
  35         ut_assertok(blk_get_device(IF_TYPE_HOST, 3, &dev));
  36         ut_asserteq_ptr(blk3, dev);
  37
  38         /* Check we can iterate */
  39         ut_assertok(blk_first_device(IF_TYPE_HOST, &dev));
  40         ut_asserteq_ptr(blk1, dev);
  41         ut_assertok(blk_next_device(&dev));
  42         ut_asserteq_ptr(blk3, dev);
  43
  44         return 0;
  45 }
  46 DM_TEST(dm_test_blk_base, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
  47
  48 static int count_blk_devices(void)
  49 {
  50         struct udevice *blk;
  51         struct uclass *uc;
  52         int count = 0;
  53         int ret;
  54
  55         ret = uclass_get(UCLASS_BLK, &uc);
  56         if (ret)
  57                 return ret;
  58
  59         uclass_foreach_dev(blk, uc)
  60                 count++;
  61
  62         return count;
  63 }
  64
  65 /* Test that block devices work correctly with USB */
  66 static int dm_test_blk_usb(struct unit_test_state *uts)
  67 {
  68         struct udevice *usb_dev, *dev;
  69         struct blk_desc *dev_desc;
  70
  71         /* Get a flash device */
  72         state_set_skip_delays(true);
  73         ut_assertok(usb_init());
  74         ut_assertok(uclass_get_device(UCLASS_MASS_STORAGE, 0, &usb_dev));
  75         ut_assertok(blk_get_device_by_str("usb", "0", &dev_desc));
  76
  77         /* The parent should be a block device */
  78         ut_assertok(blk_get_device(IF_TYPE_USB, 0, &dev));
  79         ut_asserteq_ptr(usb_dev, dev_get_parent(dev));
  80
  81         /* Check we have one block device for each mass storage device */
  82         ut_asserteq(6, count_blk_devices());
  83
  84         /* Now go around again, making sure the old devices were unbound */
  85         ut_assertok(usb_stop());
  86         ut_assertok(usb_init());
  87         ut_asserteq(6, count_blk_devices());
  88         ut_assertok(usb_stop());
  89
  90         return 0;
  91 }
  92 DM_TEST(dm_test_blk_usb, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
  93
  94 /* Test that we can find block devices without probing them */
  95 static int dm_test_blk_find(struct unit_test_state *uts)
  96 {
  97         struct udevice *blk, *dev;
  98
  99         ut_assertok(blk_create_device(gd->dm_root, "sandbox_host_blk", "test",
 100                                       IF_TYPE_HOST, 1, 512, 2, &blk));
 101         ut_asserteq(-ENODEV, blk_find_device(IF_TYPE_HOST, 0, &dev));
 102         ut_assertok(blk_find_device(IF_TYPE_HOST, 1, &dev));
 103         ut_asserteq_ptr(blk, dev);
 104         ut_asserteq(false, device_active(dev));
 105
 106         /* Now activate it */
 107         ut_assertok(blk_get_device(IF_TYPE_HOST, 1, &dev));
 108         ut_asserteq_ptr(blk, dev);
 109         ut_asserteq(true, device_active(dev));
 110
 111         return 0;
 112 }
 113 DM_TEST(dm_test_blk_find, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
 114
 115 /* Test that block device numbering works as expected */
 116 static int dm_test_blk_devnum(struct unit_test_state *uts)
 117 {
 118         struct udevice *dev, *mmc_dev, *parent;
 119         int i;
 120
 121         /*
 122          * Probe the devices, with the first one being probed last. This is the
 123          * one with no alias / sequence numnber.
 124          */
 125         ut_assertok(uclass_get_device(UCLASS_MMC, 1, &dev));
 126         ut_assertok(uclass_get_device(UCLASS_MMC, 2, &dev));
 127         ut_assertok(uclass_get_device(UCLASS_MMC, 0, &dev));
 128         for (i = 0; i < 3; i++) {
 129                 struct blk_desc *desc;
 130
 131                 /* Check that the bblock device is attached */
 132                 ut_assertok(uclass_get_device_by_seq(UCLASS_MMC, i, &mmc_dev));
 133                 ut_assertok(blk_find_device(IF_TYPE_MMC, i, &dev));
 134                 parent = dev_get_parent(dev);
 135                 ut_asserteq_ptr(parent, mmc_dev);
 136                 ut_asserteq(trailing_strtol(mmc_dev->name), i);
 137
 138                 /*
 139                  * Check that the block device devnum matches its parent's
 140                  * sequence number
 141                  */
 142                 desc = dev_get_uclass_platdata(dev);
 143                 ut_asserteq(desc->devnum, i);
 144         }
 145
 146         return 0;
 147 }
 148 DM_TEST(dm_test_blk_devnum, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
 149
 150 /* Test that we can get a block from its parent */
 151 static int dm_test_blk_get_from_parent(struct unit_test_state *uts)
 152 {
 153         struct udevice *dev, *blk;
 154
 155         ut_assertok(uclass_get_device(UCLASS_MMC, 0, &dev));
 156         ut_assertok(blk_get_from_parent(dev, &blk));
 157
 158         ut_assertok(uclass_get_device(UCLASS_I2C, 0, &dev));
 159         ut_asserteq(-ENOTBLK, blk_get_from_parent(dev, &blk));
 160
 161         ut_assertok(uclass_get_device(UCLASS_GPIO, 0, &dev));
 162         ut_asserteq(-ENODEV, blk_get_from_parent(dev, &blk));
 163
 164         return 0;
 165 }
 166 DM_TEST(dm_test_blk_get_from_parent, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);