#define PCI_BASE_ADDRESS_IO_MASK (~0x03ULL)
/* bit 1 is reserved if address_space = 1 */
+/* Convert a regsister address (e.g. PCI_BASE_ADDRESS_1) to a bar # (e.g. 1) */
+#define pci_offset_to_barnum(offset) \
+ (((offset) - PCI_BASE_ADDRESS_0) / sizeof(u32))
+
/* Header type 0 (normal devices) */
#define PCI_CARDBUS_CIS 0x28
#define PCI_SUBSYSTEM_VENDOR_ID 0x2c
*/
int dm_pci_find_class(uint find_class, int index, struct udevice **devp);
+/**
+ * struct pci_emul_uc_priv - holds info about an emulator device
+ *
+ * There is always at most one emulator per client
+ *
+ * @client: Client device if any, else NULL
+ */
+struct pci_emul_uc_priv {
+ struct udevice *client;
+};
+
/**
* struct dm_pci_emul_ops - PCI device emulator operations
*/
struct dm_pci_emul_ops {
- /**
- * get_devfn(): Check which device and function this emulators
- *
- * @dev: device to check
- * @return the device and function this emulates, or -ve on error
- */
- int (*get_devfn)(struct udevice *dev);
/**
* read_config() - Read a PCI configuration value
*
int sandbox_pci_get_emul(struct udevice *bus, pci_dev_t find_devfn,
struct udevice **containerp, struct udevice **emulp);
+/**
+ * sandbox_pci_get_client() - Find the client for an emulation device
+ *
+ * @emul: Emulation device to check
+ * @devp: Returns the client device emulated by this device
+ * @return 0 if OK, -ENOENT if the device has no client yet
+ */
+int sandbox_pci_get_client(struct udevice *emul, struct udevice **devp);
+
/**
* pci_get_devfn() - Extract the devfn from fdt_pci_addr of the device
*
- * Get devfn from fdt_pci_addr of the specifified device
+ * Get devfn from fdt_pci_addr of the specified device
*
* @dev: PCI device
* @return devfn in bits 15...8 if found, -ENODEV if not found