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1da177e4 LT |
1 | /* |
2 | * linux/include/linux/serial_8250.h | |
3 | * | |
4 | * Copyright (C) 2004 Russell King | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation; either version 2 of the License, or | |
9 | * (at your option) any later version. | |
10 | */ | |
11 | #ifndef _LINUX_SERIAL_8250_H | |
12 | #define _LINUX_SERIAL_8250_H | |
13 | ||
14 | #include <linux/serial_core.h> | |
d052d1be | 15 | #include <linux/platform_device.h> |
1da177e4 | 16 | |
bc49a661 RK |
17 | /* |
18 | * This is the platform device platform_data structure | |
19 | */ | |
1da177e4 LT |
20 | struct plat_serial8250_port { |
21 | unsigned long iobase; /* io base address */ | |
22 | void __iomem *membase; /* ioremap cookie or NULL */ | |
4f640efb | 23 | resource_size_t mapbase; /* resource base */ |
1da177e4 LT |
24 | unsigned int irq; /* interrupt number */ |
25 | unsigned int uartclk; /* UART clock rate */ | |
74a19741 | 26 | void *private_data; |
1da177e4 LT |
27 | unsigned char regshift; /* register shift */ |
28 | unsigned char iotype; /* UPIO_* */ | |
ec9f47cd | 29 | unsigned char hub6; |
0077d45e | 30 | upf_t flags; /* UPF_* flags */ |
1da177e4 LT |
31 | }; |
32 | ||
6df29deb RK |
33 | /* |
34 | * Allocate 8250 platform device IDs. Nothing is implied by | |
35 | * the numbering here, except for the legacy entry being -1. | |
36 | */ | |
37 | enum { | |
38 | PLAT8250_DEV_LEGACY = -1, | |
39 | PLAT8250_DEV_PLATFORM, | |
40 | PLAT8250_DEV_PLATFORM1, | |
104c7b03 | 41 | PLAT8250_DEV_PLATFORM2, |
6df29deb RK |
42 | PLAT8250_DEV_FOURPORT, |
43 | PLAT8250_DEV_ACCENT, | |
44 | PLAT8250_DEV_BOCA, | |
e0980daf | 45 | PLAT8250_DEV_EXAR_ST16C554, |
6df29deb RK |
46 | PLAT8250_DEV_HUB6, |
47 | PLAT8250_DEV_MCA, | |
21c614a7 | 48 | PLAT8250_DEV_AU1X00, |
61711f8f | 49 | PLAT8250_DEV_SM501, |
6df29deb RK |
50 | }; |
51 | ||
bc49a661 RK |
52 | /* |
53 | * This should be used by drivers which want to register | |
54 | * their own 8250 ports without registering their own | |
55 | * platform device. Using these will make your driver | |
56 | * dependent on the 8250 driver. | |
57 | */ | |
58 | struct uart_port; | |
59 | ||
60 | int serial8250_register_port(struct uart_port *); | |
61 | void serial8250_unregister_port(int line); | |
62 | void serial8250_suspend_port(int line); | |
63 | void serial8250_resume_port(int line); | |
64 | ||
b187f180 YL |
65 | extern int early_serial_setup(struct uart_port *port); |
66 | ||
18a8bd94 YL |
67 | extern int serial8250_find_port(struct uart_port *p); |
68 | extern int serial8250_find_port_for_earlycon(void); | |
69 | extern int setup_early_serial8250_console(char *cmdline); | |
70 | ||
1da177e4 | 71 | #endif |