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         pci_dev_t pci_dev = PCI_BDF(0, 0x1f, 0);
  39         struct pci_controller *hose;
  40         struct udevice *bus, *swap;
  41         ulong io_addr, mem_addr;
  42         char *ptr;
  43
  44         /* Check that asking for the device automatically fires up PCI */
  45         ut_assertok(uclass_get_device(UCLASS_PCI_EMUL, 0, &swap));
  46
  47         ut_assertok(uclass_get_device(UCLASS_PCI, 0, &bus));
  48         hose = dev_get_uclass_priv(bus);
  49
  50         /* First test I/O */
  51         io_addr = pci_read_bar32(hose, pci_dev, 0);
  52         outb(2, io_addr);
  53         ut_asserteq(2, inb(io_addr));
  54
  55         /*
  56          * Now test memory mapping - note we must unmap and remap to cause
  57          * the swapcase emulation to see our data and response.
  58          */
  59         mem_addr = pci_read_bar32(hose, pci_dev, 1);
  60         ptr = map_sysmem(mem_addr, 20);
  61         strcpy(ptr, "This is a TesT");
  62         unmap_sysmem(ptr);
  63
  64         ptr = map_sysmem(mem_addr, 20);
  65         ut_asserteq_str("tHIS IS A tESt", ptr);
  66         unmap_sysmem(ptr);
  67
  68         return 0;
  69 }
  70 DM_TEST(dm_test_pci_swapcase, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);