root/include/linux/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);