projects / mirror_ubuntu-bionic-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| 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 |