/* * 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/config.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__ */