xref: /openbmc/linux/include/linux/8250_pci.h (revision b2441318)
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);
39