1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
|
Index: linux-2.6.28.9/drivers/serial/crisv10.c
===================================================================
--- linux-2.6.28.9.orig/drivers/serial/crisv10.c 2009-04-10 12:58:18.000000000 +0200
+++ linux-2.6.28.9/drivers/serial/crisv10.c 2009-04-10 12:58:22.000000000 +0200
@@ -28,12 +28,15 @@
#include <linux/mutex.h>
#include <linux/bitops.h>
#include <linux/device.h>
+#include <linux/seq_file.h>
+#include <linux/delay.h>
+#include <linux/module.h>
+#include <linux/uaccess.h>
+#include <linux/io.h>
-#include <asm/io.h>
#include <asm/irq.h>
#include <asm/dma.h>
#include <asm/system.h>
-#include <linux/delay.h>
#include <arch/svinto.h>
@@ -457,7 +460,6 @@
#define NR_PORTS (sizeof(rs_table)/sizeof(struct e100_serial))
-static struct ktermios *serial_termios[NR_PORTS];
#ifdef CONFIG_ETRAX_SERIAL_FAST_TIMER
static struct fast_timer fast_timers[NR_PORTS];
#endif
@@ -4221,151 +4223,132 @@
return 0;
}
+#ifdef CONFIG_PROC_FS
/*
* /proc fs routines....
*/
-static int line_info(char *buf, struct e100_serial *info)
+static void seq_line_info(struct seq_file *m, struct e100_serial *info)
{
- char stat_buf[30];
- int ret;
unsigned long tmp;
- ret = sprintf(buf, "%d: uart:E100 port:%lX irq:%d",
- info->line, (unsigned long)info->ioport, info->irq);
+ seq_printf(m, "%d: uart:E100 port:%lX irq:%d",
+ info->line, (unsigned long)info->ioport, info->irq);
if (!info->ioport || (info->type == PORT_UNKNOWN)) {
- ret += sprintf(buf+ret, "\n");
- return ret;
+ seq_printf(m, "\n");
+ return;
}
- stat_buf[0] = 0;
- stat_buf[1] = 0;
- if (!E100_RTS_GET(info))
- strcat(stat_buf, "|RTS");
- if (!E100_CTS_GET(info))
- strcat(stat_buf, "|CTS");
- if (!E100_DTR_GET(info))
- strcat(stat_buf, "|DTR");
- if (!E100_DSR_GET(info))
- strcat(stat_buf, "|DSR");
- if (!E100_CD_GET(info))
- strcat(stat_buf, "|CD");
- if (!E100_RI_GET(info))
- strcat(stat_buf, "|RI");
-
- ret += sprintf(buf+ret, " baud:%d", info->baud);
-
- ret += sprintf(buf+ret, " tx:%lu rx:%lu",
+ seq_printf(m, " baud:%d", info->baud);
+ seq_printf(m, " tx:%lu rx:%lu",
(unsigned long)info->icount.tx,
(unsigned long)info->icount.rx);
tmp = CIRC_CNT(info->xmit.head, info->xmit.tail, SERIAL_XMIT_SIZE);
- if (tmp) {
- ret += sprintf(buf+ret, " tx_pend:%lu/%lu",
- (unsigned long)tmp,
- (unsigned long)SERIAL_XMIT_SIZE);
- }
-
- ret += sprintf(buf+ret, " rx_pend:%lu/%lu",
- (unsigned long)info->recv_cnt,
- (unsigned long)info->max_recv_cnt);
+ if (tmp)
+ seq_printf(m, " tx_pend:%lu/%lu",
+ (unsigned long)tmp,
+ (unsigned long)SERIAL_XMIT_SIZE);
+
+ seq_printf(m, " rx_pend:%lu/%lu",
+ (unsigned long)info->recv_cnt,
+ (unsigned long)info->max_recv_cnt);
#if 1
if (info->port.tty) {
-
if (info->port.tty->stopped)
- ret += sprintf(buf+ret, " stopped:%i",
- (int)info->port.tty->stopped);
+ seq_printf(m, " stopped:%i",
+ (int)info->port.tty->stopped);
if (info->port.tty->hw_stopped)
- ret += sprintf(buf+ret, " hw_stopped:%i",
- (int)info->port.tty->hw_stopped);
+ seq_printf(m, " hw_stopped:%i",
+ (int)info->port.tty->hw_stopped);
}
{
unsigned char rstat = info->ioport[REG_STATUS];
- if (rstat & IO_MASK(R_SERIAL0_STATUS, xoff_detect) )
- ret += sprintf(buf+ret, " xoff_detect:1");
+ if (rstat & IO_MASK(R_SERIAL0_STATUS, xoff_detect))
+ seq_printf(m, " xoff_detect:1");
}
#endif
-
-
-
if (info->icount.frame)
- ret += sprintf(buf+ret, " fe:%lu",
- (unsigned long)info->icount.frame);
+ seq_printf(m, " fe:%lu", (unsigned long)info->icount.frame);
if (info->icount.parity)
- ret += sprintf(buf+ret, " pe:%lu",
- (unsigned long)info->icount.parity);
+ seq_printf(m, " pe:%lu", (unsigned long)info->icount.parity);
if (info->icount.brk)
- ret += sprintf(buf+ret, " brk:%lu",
- (unsigned long)info->icount.brk);
+ seq_printf(m, " brk:%lu", (unsigned long)info->icount.brk);
if (info->icount.overrun)
- ret += sprintf(buf+ret, " oe:%lu",
- (unsigned long)info->icount.overrun);
+ seq_printf(m, " oe:%lu", (unsigned long)info->icount.overrun);
/*
* Last thing is the RS-232 status lines
*/
- ret += sprintf(buf+ret, " %s\n", stat_buf+1);
- return ret;
+ if (!E100_RTS_GET(info))
+ seq_puts(m, "|RTS");
+ if (!E100_CTS_GET(info))
+ seq_puts(m, "|CTS");
+ if (!E100_DTR_GET(info))
+ seq_puts(m, "|DTR");
+ if (!E100_DSR_GET(info))
+ seq_puts(m, "|DSR");
+ if (!E100_CD_GET(info))
+ seq_puts(m, "|CD");
+ if (!E100_RI_GET(info))
+ seq_puts(m, "|RI");
+ seq_puts(m, "\n");
}
-int rs_read_proc(char *page, char **start, off_t off, int count,
- int *eof, void *data)
+
+static int crisv10_proc_show(struct seq_file *m, void *v)
{
- int i, len = 0, l;
- off_t begin = 0;
+ int i;
+
+ seq_printf(m, "serinfo:1.0 driver:%s\n", serial_version);
- len += sprintf(page, "serinfo:1.0 driver:%s\n",
- serial_version);
- for (i = 0; i < NR_PORTS && len < 4000; i++) {
+ for (i = 0; i < NR_PORTS; i++) {
if (!rs_table[i].enabled)
continue;
- l = line_info(page + len, &rs_table[i]);
- len += l;
- if (len+begin > off+count)
- goto done;
- if (len+begin < off) {
- begin += len;
- len = 0;
- }
+ seq_line_info(m, &rs_table[i]);
}
#ifdef DEBUG_LOG_INCLUDED
for (i = 0; i < debug_log_pos; i++) {
- len += sprintf(page + len, "%-4i %lu.%lu ", i, debug_log[i].time, timer_data_to_ns(debug_log[i].timer_data));
- len += sprintf(page + len, debug_log[i].string, debug_log[i].value);
- if (len+begin > off+count)
- goto done;
- if (len+begin < off) {
- begin += len;
- len = 0;
- }
+ seq_printf(m, "%-4i %lu.%lu ",
+ i, debug_log[i].time,
+ timer_data_to_ns(debug_log[i].timer_data));
+ seq_printf(m, debug_log[i].string, debug_log[i].value);
}
- len += sprintf(page + len, "debug_log %i/%i %li bytes\n",
- i, DEBUG_LOG_SIZE, begin+len);
+ seq_printf(m, "debug_log %i/%i\n", i, DEBUG_LOG_SIZE);
debug_log_pos = 0;
#endif
+ return 0;
+}
- *eof = 1;
-done:
- if (off >= len+begin)
- return 0;
- *start = page + (off-begin);
- return ((count < begin+len-off) ? count : begin+len-off);
+static int crisv10_proc_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, crisv10_proc_show, NULL);
}
+static const struct file_operations crisv10_proc_fops = {
+ .owner = THIS_MODULE,
+ .open = crisv10_proc_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+#endif
+
+
/* Finally, routines used to initialize the serial driver. */
-static void
-show_serial_version(void)
+static void show_serial_version(void)
{
printk(KERN_INFO
- "ETRAX 100LX serial-driver %s, (c) 2000-2004 Axis Communications AB\r\n",
+ "ETRAX 100LX serial-driver %s, "
+ "(c) 2000-2004 Axis Communications AB\r\n",
&serial_version[11]); /* "$Revision: x.yy" */
}
@@ -4389,9 +4372,11 @@
.break_ctl = rs_break,
.send_xchar = rs_send_xchar,
.wait_until_sent = rs_wait_until_sent,
- .read_proc = rs_read_proc,
.tiocmget = rs_tiocmget,
- .tiocmset = rs_tiocmset
+ .tiocmset = rs_tiocmset,
+#ifdef CONFIG_PROC_FS
+ .proc_fops = &crisv10_proc_fops,
+#endif
};
static struct class *rs_class;
|
