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