1. 根目录:
2. include
3. linux
4. 8250_pci.h

/*
 * Definitions for PCI support.
 */
#define FL_BASE_MASK		0x0007
#define FL_BASE0		0x0000
#define FL_BASE1		0x0001
#define FL_BASE2		0x0002
#define FL_BASE3		0x0003
#define FL_BASE4		0x0004
#define FL_GET_BASE(x)		(x & FL_BASE_MASK)

/* Use successive BARs (PCI base address registers),
   else use offset into some specified BAR */
#define FL_BASE_BARS		0x0008

/* do not assign an irq */
#define FL_NOIRQ		0x0080

/* Use the Base address register size to cap number of ports */
#define FL_REGION_SZ_CAP	0x0100

struct pciserial_board {
	unsigned int flags;
	unsigned int num_ports;
	unsigned int base_baud;
	unsigned int uart_offset;
	unsigned int reg_shift;
	unsigned int first_offset;
};

struct serial_private;

struct serial_private *
pciserial_init_ports(struct pci_dev *dev, const struct pciserial_board *board);
void pciserial_remove_ports(struct serial_private *priv);
void pciserial_suspend_ports(struct serial_private *priv);
void pciserial_resume_ports(struct serial_private *priv);