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