diff options
Diffstat (limited to 'arch/mips/mti-malta/malta-kgdb.c')
-rw-r--r-- | arch/mips/mti-malta/malta-kgdb.c | 133 |
1 files changed, 0 insertions, 133 deletions
diff --git a/arch/mips/mti-malta/malta-kgdb.c b/arch/mips/mti-malta/malta-kgdb.c deleted file mode 100644 index 6a1854de4579..000000000000 --- a/arch/mips/mti-malta/malta-kgdb.c +++ /dev/null | |||
@@ -1,133 +0,0 @@ | |||
1 | /* | ||
2 | * Carsten Langgaard, carstenl@mips.com | ||
3 | * Copyright (C) 2000 MIPS Technologies, Inc. All rights reserved. | ||
4 | * | ||
5 | * This program is free software; you can distribute it and/or modify it | ||
6 | * under the terms of the GNU General Public License (Version 2) as | ||
7 | * published by the Free Software Foundation. | ||
8 | * | ||
9 | * This program is distributed in the hope it will be useful, but WITHOUT | ||
10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | ||
11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | ||
12 | * for more details. | ||
13 | * | ||
14 | * You should have received a copy of the GNU General Public License along | ||
15 | * with this program; if not, write to the Free Software Foundation, Inc., | ||
16 | * 59 Temple Place - Suite 330, Boston MA 02111-1307, USA. | ||
17 | * | ||
18 | * This is the interface to the remote debugger stub. | ||
19 | */ | ||
20 | #include <linux/types.h> | ||
21 | #include <linux/serial.h> | ||
22 | #include <linux/serialP.h> | ||
23 | #include <linux/serial_reg.h> | ||
24 | |||
25 | #include <asm/serial.h> | ||
26 | #include <asm/io.h> | ||
27 | |||
28 | static struct serial_state rs_table[] = { | ||
29 | SERIAL_PORT_DFNS /* Defined in serial.h */ | ||
30 | }; | ||
31 | |||
32 | static struct async_struct kdb_port_info = {0}; | ||
33 | |||
34 | int (*generic_putDebugChar)(char); | ||
35 | char (*generic_getDebugChar)(void); | ||
36 | |||
37 | static __inline__ unsigned int serial_in(struct async_struct *info, int offset) | ||
38 | { | ||
39 | return inb(info->port + offset); | ||
40 | } | ||
41 | |||
42 | static __inline__ void serial_out(struct async_struct *info, int offset, | ||
43 | int value) | ||
44 | { | ||
45 | outb(value, info->port+offset); | ||
46 | } | ||
47 | |||
48 | int rs_kgdb_hook(int tty_no, int speed) { | ||
49 | int t; | ||
50 | struct serial_state *ser = &rs_table[tty_no]; | ||
51 | |||
52 | kdb_port_info.state = ser; | ||
53 | kdb_port_info.magic = SERIAL_MAGIC; | ||
54 | kdb_port_info.port = ser->port; | ||
55 | kdb_port_info.flags = ser->flags; | ||
56 | |||
57 | /* | ||
58 | * Clear all interrupts | ||
59 | */ | ||
60 | serial_in(&kdb_port_info, UART_LSR); | ||
61 | serial_in(&kdb_port_info, UART_RX); | ||
62 | serial_in(&kdb_port_info, UART_IIR); | ||
63 | serial_in(&kdb_port_info, UART_MSR); | ||
64 | |||
65 | /* | ||
66 | * Now, initialize the UART | ||
67 | */ | ||
68 | serial_out(&kdb_port_info, UART_LCR, UART_LCR_WLEN8); /* reset DLAB */ | ||
69 | if (kdb_port_info.flags & ASYNC_FOURPORT) { | ||
70 | kdb_port_info.MCR = UART_MCR_DTR | UART_MCR_RTS; | ||
71 | t = UART_MCR_DTR | UART_MCR_OUT1; | ||
72 | } else { | ||
73 | kdb_port_info.MCR | ||
74 | = UART_MCR_DTR | UART_MCR_RTS | UART_MCR_OUT2; | ||
75 | t = UART_MCR_DTR | UART_MCR_RTS; | ||
76 | } | ||
77 | |||
78 | kdb_port_info.MCR = t; /* no interrupts, please */ | ||
79 | serial_out(&kdb_port_info, UART_MCR, kdb_port_info.MCR); | ||
80 | |||
81 | /* | ||
82 | * and set the speed of the serial port | ||
83 | */ | ||
84 | if (speed == 0) | ||
85 | speed = 9600; | ||
86 | |||
87 | t = kdb_port_info.state->baud_base / speed; | ||
88 | /* set DLAB */ | ||
89 | serial_out(&kdb_port_info, UART_LCR, UART_LCR_WLEN8 | UART_LCR_DLAB); | ||
90 | serial_out(&kdb_port_info, UART_DLL, t & 0xff);/* LS of divisor */ | ||
91 | serial_out(&kdb_port_info, UART_DLM, t >> 8); /* MS of divisor */ | ||
92 | /* reset DLAB */ | ||
93 | serial_out(&kdb_port_info, UART_LCR, UART_LCR_WLEN8); | ||
94 | |||
95 | return speed; | ||
96 | } | ||
97 | |||
98 | int putDebugChar(char c) | ||
99 | { | ||
100 | return generic_putDebugChar(c); | ||
101 | } | ||
102 | |||
103 | char getDebugChar(void) | ||
104 | { | ||
105 | return generic_getDebugChar(); | ||
106 | } | ||
107 | |||
108 | int rs_putDebugChar(char c) | ||
109 | { | ||
110 | |||
111 | if (!kdb_port_info.state) { /* need to init device first */ | ||
112 | return 0; | ||
113 | } | ||
114 | |||
115 | while ((serial_in(&kdb_port_info, UART_LSR) & UART_LSR_THRE) == 0) | ||
116 | ; | ||
117 | |||
118 | serial_out(&kdb_port_info, UART_TX, c); | ||
119 | |||
120 | return 1; | ||
121 | } | ||
122 | |||
123 | char rs_getDebugChar(void) | ||
124 | { | ||
125 | if (!kdb_port_info.state) { /* need to init device first */ | ||
126 | return 0; | ||
127 | } | ||
128 | |||
129 | while (!(serial_in(&kdb_port_info, UART_LSR) & 1)) | ||
130 | ; | ||
131 | |||
132 | return serial_in(&kdb_port_info, UART_RX); | ||
133 | } | ||