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