test/dm/pci.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 <asm/io.h>
   9 #include <dm/test.h>
  10 #include <test/ut.h>
  11
  12 /* Test that sandbox PCI works correctly */
  13 static int dm_test_pci_base(struct unit_test_state *uts)
  14 {
  15         struct udevice *bus;
  16
  17         ut_assertok(uclass_get_device(UCLASS_PCI, 0, &bus));
  18
  19         return 0;
  20 }
  21 DM_TEST(dm_test_pci_base, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
  22
  23 /* Test that sandbox PCI bus numbering works correctly */
  24 static int dm_test_pci_busnum(struct unit_test_state *uts)
  25 {
  26         struct udevice *bus;
  27
  28         ut_assertok(uclass_get_device_by_seq(UCLASS_PCI, 0, &bus));
  29
  30         return 0;
  31 }
  32 DM_TEST(dm_test_pci_busnum, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
  33
  34 /* Test that we can use the swapcase device correctly */
  35 static int dm_test_pci_swapcase(struct unit_test_state *uts)
  36 {
  37         struct udevice *emul, *swap;
  38         ulong io_addr, mem_addr;
  39         char *ptr;
  40
  41         /* Check that asking for the device automatically fires up PCI */
  42         ut_assertok(uclass_get_device(UCLASS_PCI_EMUL, 0, &emul));
  43         ut_assertok(dm_pci_bus_find_bdf(PCI_BDF(0, 0x1f, 0), &swap));
  44         ut_assert(device_active(swap));
  45
  46         /* First test I/O */
  47         io_addr = dm_pci_read_bar32(swap, 0);
  48         outb(2, io_addr);
  49         ut_asserteq(2, inb(io_addr));
  50
  51         /*
  52          * Now test memory mapping - note we must unmap and remap to cause
  53          * the swapcase emulation to see our data and response.
  54          */
  55         mem_addr = dm_pci_read_bar32(swap, 1);
  56         ptr = map_sysmem(mem_addr, 20);
  57         strcpy(ptr, "This is a TesT");
  58         unmap_sysmem(ptr);
  59
  60         ptr = map_sysmem(mem_addr, 20);
  61         ut_asserteq_str("tHIS IS A tESt", ptr);
  62         unmap_sysmem(ptr);
  63
  64         return 0;
  65 }
  66 DM_TEST(dm_test_pci_swapcase, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);