Add several PCI capability and extended capability ID registers
in the swap_case driver, so that we can add test case for
dm_pci_find_capability() and dm_pci_find_ext_capability().
Signed-off-by: Bin Meng <bmeng...@gmail.com>
Reviewed-by: Simon Glass <s...@chromium.org>
---
Changes in v3: None
Changes in v2: None
arch/sandbox/include/asm/test.h | 8 ++++++++
drivers/misc/swap_case.c | 21 +++++++++++++++++++++
test/dm/pci.c | 32 ++++++++++++++++++++++++++++++++
3 files changed, 61 insertions(+)
diff --git a/arch/sandbox/include/asm/test.h b/arch/sandbox/include/asm/test.h
index 57aeca8..c8ae52b 100644
--- a/arch/sandbox/include/asm/test.h
+++ b/arch/sandbox/include/asm/test.h
@@ -16,6 +16,14 @@
#define SANDBOX_PCI_CLASS_CODE PCI_CLASS_CODE_COMM
#define SANDBOX_PCI_CLASS_SUB_CODE PCI_CLASS_SUB_CODE_COMM_SERIAL
+#define PCI_CAP_ID_PM_OFFSET 0x50
+#define PCI_CAP_ID_EXP_OFFSET 0x60
+#define PCI_CAP_ID_MSIX_OFFSET 0x70
+
+#define PCI_EXT_CAP_ID_ERR_OFFSET 0x100
+#define PCI_EXT_CAP_ID_VC_OFFSET 0x200
+#define PCI_EXT_CAP_ID_DSN_OFFSET 0x300
+
/* Useful for PCI_VDEVICE() macro */
#define PCI_VENDOR_ID_SANDBOX SANDBOX_PCI_VENDOR_ID
#define SWAP_CASE_DRV_DATA 0x55aa
diff --git a/drivers/misc/swap_case.c b/drivers/misc/swap_case.c
index 790bb0c..bffb809 100644
--- a/drivers/misc/swap_case.c
+++ b/drivers/misc/swap_case.c
@@ -118,6 +118,27 @@ static int sandbox_swap_case_read_config(struct udevice
*emul, uint offset,
*valuep = result;
break;
}
+ case PCI_CAPABILITY_LIST:
+ *valuep = PCI_CAP_ID_PM_OFFSET;
+ break;
+ case PCI_CAP_ID_PM_OFFSET:
+ *valuep = (PCI_CAP_ID_EXP_OFFSET << 8) | PCI_CAP_ID_PM;
+ break;
+ case PCI_CAP_ID_EXP_OFFSET:
+ *valuep = (PCI_CAP_ID_MSIX_OFFSET << 8) | PCI_CAP_ID_EXP;
+ break;
+ case PCI_CAP_ID_MSIX_OFFSET:
+ *valuep = PCI_CAP_ID_MSIX;
+ break;
+ case PCI_EXT_CAP_ID_ERR_OFFSET:
+ *valuep = (PCI_EXT_CAP_ID_VC_OFFSET << 20) | PCI_EXT_CAP_ID_ERR;
+ break;
+ case PCI_EXT_CAP_ID_VC_OFFSET:
+ *valuep = (PCI_EXT_CAP_ID_DSN_OFFSET << 20) | PCI_EXT_CAP_ID_VC;
+ break;
+ case PCI_EXT_CAP_ID_DSN_OFFSET:
+ *valuep = PCI_EXT_CAP_ID_DSN;
+ break;
}
return 0;
diff --git a/test/dm/pci.c b/test/dm/pci.c
index e03f6ba..8699700 100644
--- a/test/dm/pci.c
+++ b/test/dm/pci.c
@@ -188,3 +188,35 @@ static int dm_test_pci_mixed(struct unit_test_state *uts)
return 0;
}
DM_TEST(dm_test_pci_mixed, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
+
+/* Test looking up PCI capability and extended capability */
+static int dm_test_pci_cap(struct unit_test_state *uts)
+{
+ struct udevice *bus, *swap;
+ int cap;
+
+ ut_assertok(uclass_get_device_by_seq(UCLASS_PCI, 0, &bus));
+ ut_assertok(dm_pci_bus_find_bdf(PCI_BDF(0, 0x1f, 0), &swap));
+
+ /* look up PCI_CAP_ID_EXP */
+ cap = dm_pci_find_capability(swap, PCI_CAP_ID_EXP);
+ ut_asserteq(PCI_CAP_ID_EXP_OFFSET, cap);
+
+ /* look up PCI_CAP_ID_PCIX */
+ cap = dm_pci_find_capability(swap, PCI_CAP_ID_PCIX);
+ ut_asserteq(0, cap);
+
+ ut_assertok(uclass_get_device_by_seq(UCLASS_PCI, 1, &bus));
+ ut_assertok(dm_pci_bus_find_bdf(PCI_BDF(1, 0x08, 0), &swap));
+
+ /* look up PCI_EXT_CAP_ID_DSN */
+ cap = dm_pci_find_ext_capability(swap, PCI_EXT_CAP_ID_DSN);
+ ut_asserteq(PCI_EXT_CAP_ID_DSN_OFFSET, cap);
+
+ /* look up PCI_EXT_CAP_ID_SRIOV */
+ cap = dm_pci_find_ext_capability(swap, PCI_EXT_CAP_ID_SRIOV);
+ ut_asserteq(0, cap);
+
+ return 0;
+}
+DM_TEST(dm_test_pci_cap, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
--
2.7.4
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