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Diffstat (limited to 'include/asm-v850/v850e_uart.h')
| -rw-r--r-- | include/asm-v850/v850e_uart.h | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/include/asm-v850/v850e_uart.h b/include/asm-v850/v850e_uart.h new file mode 100644 index 00000000000..5930d5990b1 --- /dev/null +++ b/include/asm-v850/v850e_uart.h @@ -0,0 +1,77 @@ +/* + * 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__ */ |