diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /drivers/serial/8250.h |
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'drivers/serial/8250.h')
-rw-r--r-- | drivers/serial/8250.h | 87 |
1 files changed, 87 insertions, 0 deletions
diff --git a/drivers/serial/8250.h b/drivers/serial/8250.h new file mode 100644 index 000000000000..4f3d62f222f4 --- /dev/null +++ b/drivers/serial/8250.h | |||
@@ -0,0 +1,87 @@ | |||
1 | /* | ||
2 | * linux/drivers/char/8250.h | ||
3 | * | ||
4 | * Driver for 8250/16550-type serial ports | ||
5 | * | ||
6 | * Based on drivers/char/serial.c, by Linus Torvalds, Theodore Ts'o. | ||
7 | * | ||
8 | * Copyright (C) 2001 Russell King. | ||
9 | * | ||
10 | * This program is free software; you can redistribute it and/or modify | ||
11 | * it under the terms of the GNU General Public License as published by | ||
12 | * the Free Software Foundation; either version 2 of the License, or | ||
13 | * (at your option) any later version. | ||
14 | * | ||
15 | * $Id: 8250.h,v 1.8 2002/07/21 21:32:30 rmk Exp $ | ||
16 | */ | ||
17 | |||
18 | #include <linux/config.h> | ||
19 | |||
20 | int serial8250_register_port(struct uart_port *); | ||
21 | void serial8250_unregister_port(int line); | ||
22 | void serial8250_suspend_port(int line); | ||
23 | void serial8250_resume_port(int line); | ||
24 | |||
25 | struct old_serial_port { | ||
26 | unsigned int uart; | ||
27 | unsigned int baud_base; | ||
28 | unsigned int port; | ||
29 | unsigned int irq; | ||
30 | unsigned int flags; | ||
31 | unsigned char hub6; | ||
32 | unsigned char io_type; | ||
33 | unsigned char *iomem_base; | ||
34 | unsigned short iomem_reg_shift; | ||
35 | }; | ||
36 | |||
37 | /* | ||
38 | * This replaces serial_uart_config in include/linux/serial.h | ||
39 | */ | ||
40 | struct serial8250_config { | ||
41 | const char *name; | ||
42 | unsigned short fifo_size; | ||
43 | unsigned short tx_loadsz; | ||
44 | unsigned char fcr; | ||
45 | unsigned int flags; | ||
46 | }; | ||
47 | |||
48 | #define UART_CAP_FIFO (1 << 8) /* UART has FIFO */ | ||
49 | #define UART_CAP_EFR (1 << 9) /* UART has EFR */ | ||
50 | #define UART_CAP_SLEEP (1 << 10) /* UART has IER sleep */ | ||
51 | #define UART_CAP_AFE (1 << 11) /* MCR-based hw flow control */ | ||
52 | #define UART_CAP_UUE (1 << 12) /* UART needs IER bit 6 set (Xscale) */ | ||
53 | |||
54 | #if defined(__i386__) && (defined(CONFIG_M386) || defined(CONFIG_M486)) | ||
55 | #define _INLINE_ inline | ||
56 | #else | ||
57 | #define _INLINE_ | ||
58 | #endif | ||
59 | |||
60 | #define PROBE_RSA (1 << 0) | ||
61 | #define PROBE_ANY (~0) | ||
62 | |||
63 | #define HIGH_BITS_OFFSET ((sizeof(long)-sizeof(int))*8) | ||
64 | |||
65 | #ifdef CONFIG_SERIAL_8250_SHARE_IRQ | ||
66 | #define SERIAL8250_SHARE_IRQS 1 | ||
67 | #else | ||
68 | #define SERIAL8250_SHARE_IRQS 0 | ||
69 | #endif | ||
70 | |||
71 | #if defined(__alpha__) && !defined(CONFIG_PCI) | ||
72 | /* | ||
73 | * Digital did something really horribly wrong with the OUT1 and OUT2 | ||
74 | * lines on at least some ALPHA's. The failure mode is that if either | ||
75 | * is cleared, the machine locks up with endless interrupts. | ||
76 | */ | ||
77 | #define ALPHA_KLUDGE_MCR (UART_MCR_OUT2 | UART_MCR_OUT1) | ||
78 | #elif defined(CONFIG_SBC8560) | ||
79 | /* | ||
80 | * WindRiver did something similarly broken on their SBC8560 board. The | ||
81 | * UART tristates its IRQ output while OUT2 is clear, but they pulled | ||
82 | * the interrupt line _up_ instead of down, so if we register the IRQ | ||
83 | * while the UART is in that state, we die in an IRQ storm. */ | ||
84 | #define ALPHA_KLUDGE_MCR (UART_MCR_OUT2) | ||
85 | #else | ||
86 | #define ALPHA_KLUDGE_MCR 0 | ||
87 | #endif | ||