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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 000000000000..5930d5990b19 --- /dev/null +++ b/include/asm-v850/v850e_uart.h | |||
@@ -0,0 +1,77 @@ | |||
1 | /* | ||
2 | * include/asm-v850/v850e_uart.h -- common V850E on-chip UART driver | ||
3 | * | ||
4 | * Copyright (C) 2001,02,03 NEC Electronics Corporation | ||
5 | * Copyright (C) 2001,02,03 Miles Bader <miles@gnu.org> | ||
6 | * | ||
7 | * This file is subject to the terms and conditions of the GNU General | ||
8 | * Public License. See the file COPYING in the main directory of this | ||
9 | * archive for more details. | ||
10 | * | ||
11 | * Written by Miles Bader <miles@gnu.org> | ||
12 | */ | ||
13 | |||
14 | /* There's not actually a single UART implementation used by V850E CPUs, | ||
15 | but rather a series of implementations that are all `close' to one | ||
16 | another. This file corresponds to the single driver which handles all | ||
17 | of them. */ | ||
18 | |||
19 | #ifndef __V850_V850E_UART_H__ | ||
20 | #define __V850_V850E_UART_H__ | ||
21 | |||
22 | #include <linux/config.h> | ||
23 | #include <linux/termios.h> | ||
24 | |||
25 | #include <asm/v850e_utils.h> | ||
26 | #include <asm/types.h> | ||
27 | #include <asm/machdep.h> /* Pick up chip-specific defs. */ | ||
28 | |||
29 | |||
30 | /* Include model-specific definitions. */ | ||
31 | #ifdef CONFIG_V850E_UART | ||
32 | # ifdef CONFIG_V850E_UARTB | ||
33 | # include <asm-v850/v850e_uartb.h> | ||
34 | # else | ||
35 | # include <asm-v850/v850e_uarta.h> /* original V850E UART */ | ||
36 | # endif | ||
37 | #endif | ||
38 | |||
39 | |||
40 | /* Optional capabilities some hardware provides. */ | ||
41 | |||
42 | /* This UART doesn't implement RTS/CTS by default, but some platforms | ||
43 | implement them externally, so check to see if <asm/machdep.h> defined | ||
44 | anything. */ | ||
45 | #ifdef V850E_UART_CTS | ||
46 | #define v850e_uart_cts(n) V850E_UART_CTS(n) | ||
47 | #else | ||
48 | #define v850e_uart_cts(n) (1) | ||
49 | #endif | ||
50 | |||
51 | /* Do the same for RTS. */ | ||
52 | #ifdef V850E_UART_SET_RTS | ||
53 | #define v850e_uart_set_rts(n,v) V850E_UART_SET_RTS(n,v) | ||
54 | #else | ||
55 | #define v850e_uart_set_rts(n,v) ((void)0) | ||
56 | #endif | ||
57 | |||
58 | |||
59 | /* This is the serial channel to use for the boot console (if desired). */ | ||
60 | #ifndef V850E_UART_CONSOLE_CHANNEL | ||
61 | # define V850E_UART_CONSOLE_CHANNEL 0 | ||
62 | #endif | ||
63 | |||
64 | |||
65 | #ifndef __ASSEMBLY__ | ||
66 | |||
67 | /* Setup a console using channel 0 of the builtin uart. */ | ||
68 | extern void v850e_uart_cons_init (unsigned chan); | ||
69 | |||
70 | /* Configure and turn on uart channel CHAN, using the termios `control | ||
71 | modes' bits in CFLAGS, and a baud-rate of BAUD. */ | ||
72 | void v850e_uart_configure (unsigned chan, unsigned cflags, unsigned baud); | ||
73 | |||
74 | #endif /* !__ASSEMBLY__ */ | ||
75 | |||
76 | |||
77 | #endif /* __V850_V850E_UART_H__ */ | ||