mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-27 14:43:58 +08:00
77 lines
2.1 KiB
C
77 lines
2.1 KiB
C
/*
|
|
* include/asm-v850/v850e_uart.h -- common V850E on-chip UART driver
|
|
*
|
|
* Copyright (C) 2001,02,03 NEC Electronics Corporation
|
|
* Copyright (C) 2001,02,03 Miles Bader <miles@gnu.org>
|
|
*
|
|
* This file is subject to the terms and conditions of the GNU General
|
|
* Public License. See the file COPYING in the main directory of this
|
|
* archive for more details.
|
|
*
|
|
* Written by Miles Bader <miles@gnu.org>
|
|
*/
|
|
|
|
/* There's not actually a single UART implementation used by V850E CPUs,
|
|
but rather a series of implementations that are all `close' to one
|
|
another. This file corresponds to the single driver which handles all
|
|
of them. */
|
|
|
|
#ifndef __V850_V850E_UART_H__
|
|
#define __V850_V850E_UART_H__
|
|
|
|
#include <linux/termios.h>
|
|
|
|
#include <asm/v850e_utils.h>
|
|
#include <asm/types.h>
|
|
#include <asm/machdep.h> /* Pick up chip-specific defs. */
|
|
|
|
|
|
/* Include model-specific definitions. */
|
|
#ifdef CONFIG_V850E_UART
|
|
# ifdef CONFIG_V850E_UARTB
|
|
# include <asm-v850/v850e_uartb.h>
|
|
# else
|
|
# include <asm-v850/v850e_uarta.h> /* original V850E UART */
|
|
# endif
|
|
#endif
|
|
|
|
|
|
/* Optional capabilities some hardware provides. */
|
|
|
|
/* This UART doesn't implement RTS/CTS by default, but some platforms
|
|
implement them externally, so check to see if <asm/machdep.h> defined
|
|
anything. */
|
|
#ifdef V850E_UART_CTS
|
|
#define v850e_uart_cts(n) V850E_UART_CTS(n)
|
|
#else
|
|
#define v850e_uart_cts(n) (1)
|
|
#endif
|
|
|
|
/* Do the same for RTS. */
|
|
#ifdef V850E_UART_SET_RTS
|
|
#define v850e_uart_set_rts(n,v) V850E_UART_SET_RTS(n,v)
|
|
#else
|
|
#define v850e_uart_set_rts(n,v) ((void)0)
|
|
#endif
|
|
|
|
|
|
/* This is the serial channel to use for the boot console (if desired). */
|
|
#ifndef V850E_UART_CONSOLE_CHANNEL
|
|
# define V850E_UART_CONSOLE_CHANNEL 0
|
|
#endif
|
|
|
|
|
|
#ifndef __ASSEMBLY__
|
|
|
|
/* Setup a console using channel 0 of the builtin uart. */
|
|
extern void v850e_uart_cons_init (unsigned chan);
|
|
|
|
/* Configure and turn on uart channel CHAN, using the termios `control
|
|
modes' bits in CFLAGS, and a baud-rate of BAUD. */
|
|
void v850e_uart_configure (unsigned chan, unsigned cflags, unsigned baud);
|
|
|
|
#endif /* !__ASSEMBLY__ */
|
|
|
|
|
|
#endif /* __V850_V850E_UART_H__ */
|