root/include/linux/8250_pci.h

INCLUDED FROM

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 /*
   3  * Definitions for PCI support.
   4  */
   5 #define FL_BASE_MASK            0x0007
   6 #define FL_BASE0                0x0000
   7 #define FL_BASE1                0x0001
   8 #define FL_BASE2                0x0002
   9 #define FL_BASE3                0x0003
  10 #define FL_BASE4                0x0004
  11 #define FL_GET_BASE(x)          (x & FL_BASE_MASK)
  12 
  13 /* Use successive BARs (PCI base address registers),
  14    else use offset into some specified BAR */
  15 #define FL_BASE_BARS            0x0008
  16 
  17 /* do not assign an irq */
  18 #define FL_NOIRQ                0x0080
  19 
  20 /* Use the Base address register size to cap number of ports */
  21 #define FL_REGION_SZ_CAP        0x0100
  22 
  23 struct pciserial_board {
  24         unsigned int flags;
  25         unsigned int num_ports;
  26         unsigned int base_baud;
  27         unsigned int uart_offset;
  28         unsigned int reg_shift;
  29         unsigned int first_offset;
  30 };
  31 
  32 struct serial_private;
  33 
  34 struct serial_private *
  35 pciserial_init_ports(struct pci_dev *dev, const struct pciserial_board *board);
  36 void pciserial_remove_ports(struct serial_private *priv);
  37 void pciserial_suspend_ports(struct serial_private *priv);
  38 void pciserial_resume_ports(struct serial_private *priv);