2 * Copyright 2004 Digi International (www.digi.com)
3 * Scott H Kilau <Scott_Kilau at digi dot com>
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2, or (at your option)
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY, EXPRESS OR IMPLIED; without even the
12 * implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
13 * PURPOSE. See the GNU General Public License for more details.
17 #include "dgrp_common.h"
19 #include <linux/kernel.h>
20 #include <linux/module.h>
21 #include <linux/ctype.h>
22 #include <linux/string.h>
23 #include <linux/serial_reg.h>
24 #include <linux/pci.h>
25 #include <linux/kdev_t.h>
28 #define PORTSERVER_DIVIDEND 1843200
29 #define SERIAL_TYPE_NORMAL 1
30 #define SERIAL_TYPE_CALLOUT 2
31 #define SERIAL_TYPE_XPRINT 3
34 static struct class *dgrp_class
;
35 static struct device
*dgrp_class_nodes_dev
;
36 static struct device
*dgrp_class_global_settings_dev
;
39 static ssize_t
dgrp_class_version_show(struct class *class,
40 struct class_attribute
*attr
, char *buf
)
42 return snprintf(buf
, PAGE_SIZE
, "%s\n", DIGI_VERSION
);
44 static CLASS_ATTR(driver_version
, 0400, dgrp_class_version_show
, NULL
);
47 static ssize_t
dgrp_class_register_with_sysfs_show(struct device
*c
,
48 struct device_attribute
*attr
,
51 return snprintf(buf
, PAGE_SIZE
, "1\n");
53 static DEVICE_ATTR(register_with_sysfs
, 0400,
54 dgrp_class_register_with_sysfs_show
, NULL
);
57 static ssize_t
dgrp_class_pollrate_show(struct device
*c
,
58 struct device_attribute
*attr
,
61 return snprintf(buf
, PAGE_SIZE
, "%d\n", dgrp_poll_tick
);
64 static ssize_t
dgrp_class_pollrate_store(struct device
*c
,
65 struct device_attribute
*attr
,
66 const char *buf
, size_t count
)
68 sscanf(buf
, "0x%x\n", &dgrp_poll_tick
);
71 static DEVICE_ATTR(pollrate
, 0600, dgrp_class_pollrate_show
,
72 dgrp_class_pollrate_store
);
74 static struct attribute
*dgrp_sysfs_global_settings_entries
[] = {
75 &dev_attr_pollrate
.attr
,
76 &dev_attr_register_with_sysfs
.attr
,
81 static struct attribute_group dgrp_global_settings_attribute_group
= {
83 .attrs
= dgrp_sysfs_global_settings_entries
,
88 void dgrp_create_class_sysfs_files(void)
91 int max_majors
= 1U << (32 - MINORBITS
);
93 dgrp_class
= class_create(THIS_MODULE
, "digi_realport");
94 ret
= class_create_file(dgrp_class
, &class_attr_driver_version
);
96 dgrp_class_global_settings_dev
= device_create(dgrp_class
, NULL
,
97 MKDEV(0, max_majors
+ 1), NULL
, "driver_settings");
99 ret
= sysfs_create_group(&dgrp_class_global_settings_dev
->kobj
,
100 &dgrp_global_settings_attribute_group
);
102 pr_alert("%s: failed to create sysfs global settings device attributes.\n",
104 sysfs_remove_group(&dgrp_class_global_settings_dev
->kobj
,
105 &dgrp_global_settings_attribute_group
);
109 dgrp_class_nodes_dev
= device_create(dgrp_class
, NULL
,
110 MKDEV(0, max_majors
+ 2), NULL
, "nodes");
115 void dgrp_remove_class_sysfs_files(void)
117 struct nd_struct
*nd
;
118 int max_majors
= 1U << (32 - MINORBITS
);
120 list_for_each_entry(nd
, &nd_struct_list
, list
)
121 dgrp_remove_node_class_sysfs_files(nd
);
123 sysfs_remove_group(&dgrp_class_global_settings_dev
->kobj
,
124 &dgrp_global_settings_attribute_group
);
126 class_remove_file(dgrp_class
, &class_attr_driver_version
);
128 device_destroy(dgrp_class
, MKDEV(0, max_majors
+ 1));
129 device_destroy(dgrp_class
, MKDEV(0, max_majors
+ 2));
130 class_destroy(dgrp_class
);
133 static ssize_t
dgrp_node_state_show(struct device
*c
,
134 struct device_attribute
*attr
, char *buf
)
136 struct nd_struct
*nd
;
140 nd
= (struct nd_struct
*) dev_get_drvdata(c
);
144 return snprintf(buf
, PAGE_SIZE
, "%s\n", ND_STATE_STR(nd
->nd_state
));
147 static DEVICE_ATTR(state
, 0600, dgrp_node_state_show
, NULL
);
149 static ssize_t
dgrp_node_description_show(struct device
*c
,
150 struct device_attribute
*attr
,
153 struct nd_struct
*nd
;
157 nd
= (struct nd_struct
*) dev_get_drvdata(c
);
161 if (nd
->nd_state
== NS_READY
)
162 return snprintf(buf
, PAGE_SIZE
, "%s\n", nd
->nd_ps_desc
);
165 static DEVICE_ATTR(description_info
, 0600, dgrp_node_description_show
, NULL
);
167 static ssize_t
dgrp_node_hw_version_show(struct device
*c
,
168 struct device_attribute
*attr
,
171 struct nd_struct
*nd
;
175 nd
= (struct nd_struct
*) dev_get_drvdata(c
);
179 if (nd
->nd_state
== NS_READY
)
180 return snprintf(buf
, PAGE_SIZE
, "%d.%d\n",
181 (nd
->nd_hw_ver
>> 8) & 0xff,
182 nd
->nd_hw_ver
& 0xff);
186 static DEVICE_ATTR(hw_version_info
, 0600, dgrp_node_hw_version_show
, NULL
);
188 static ssize_t
dgrp_node_hw_id_show(struct device
*c
,
189 struct device_attribute
*attr
, char *buf
)
191 struct nd_struct
*nd
;
195 nd
= (struct nd_struct
*) dev_get_drvdata(c
);
200 if (nd
->nd_state
== NS_READY
)
201 return snprintf(buf
, PAGE_SIZE
, "%d\n", nd
->nd_hw_id
);
204 static DEVICE_ATTR(hw_id_info
, 0600, dgrp_node_hw_id_show
, NULL
);
206 static ssize_t
dgrp_node_sw_version_show(struct device
*c
,
207 struct device_attribute
*attr
,
210 struct nd_struct
*nd
;
215 nd
= (struct nd_struct
*) dev_get_drvdata(c
);
219 if (nd
->nd_state
== NS_READY
)
220 return snprintf(buf
, PAGE_SIZE
, "%d.%d\n",
221 (nd
->nd_sw_ver
>> 8) & 0xff,
222 nd
->nd_sw_ver
& 0xff);
226 static DEVICE_ATTR(sw_version_info
, 0600, dgrp_node_sw_version_show
, NULL
);
229 static struct attribute
*dgrp_sysfs_node_entries
[] = {
230 &dev_attr_state
.attr
,
231 &dev_attr_description_info
.attr
,
232 &dev_attr_hw_version_info
.attr
,
233 &dev_attr_hw_id_info
.attr
,
234 &dev_attr_sw_version_info
.attr
,
239 static struct attribute_group dgrp_node_attribute_group
= {
241 .attrs
= dgrp_sysfs_node_entries
,
245 void dgrp_create_node_class_sysfs_files(struct nd_struct
*nd
)
251 ID_TO_CHAR(nd
->nd_ID
, name
);
253 sprintf(name
, "node%ld", nd
->nd_major
);
255 nd
->nd_class_dev
= device_create(dgrp_class
, dgrp_class_nodes_dev
,
256 MKDEV(0, nd
->nd_major
), NULL
, name
);
258 ret
= sysfs_create_group(&nd
->nd_class_dev
->kobj
,
259 &dgrp_node_attribute_group
);
262 pr_alert("%s: failed to create sysfs node device attributes.\n",
264 sysfs_remove_group(&nd
->nd_class_dev
->kobj
,
265 &dgrp_node_attribute_group
);
269 dev_set_drvdata(nd
->nd_class_dev
, nd
);
274 void dgrp_remove_node_class_sysfs_files(struct nd_struct
*nd
)
276 if (nd
->nd_class_dev
) {
277 sysfs_remove_group(&nd
->nd_class_dev
->kobj
,
278 &dgrp_node_attribute_group
);
280 device_destroy(dgrp_class
, MKDEV(0, nd
->nd_major
));
281 nd
->nd_class_dev
= NULL
;
287 static ssize_t
dgrp_tty_state_show(struct device
*d
,
288 struct device_attribute
*attr
, char *buf
)
290 struct un_struct
*un
;
294 un
= (struct un_struct
*) dev_get_drvdata(d
);
298 return snprintf(buf
, PAGE_SIZE
, "%s\n",
299 un
->un_open_count
? "Open" : "Closed");
301 static DEVICE_ATTR(state_info
, 0600, dgrp_tty_state_show
, NULL
);
303 static ssize_t
dgrp_tty_baud_show(struct device
*d
,
304 struct device_attribute
*attr
, char *buf
)
306 struct ch_struct
*ch
;
307 struct un_struct
*un
;
311 un
= (struct un_struct
*) dev_get_drvdata(d
);
317 return snprintf(buf
, PAGE_SIZE
, "%d\n",
318 un
->un_open_count
? (PORTSERVER_DIVIDEND
/ ch
->ch_s_brate
) : 0);
320 static DEVICE_ATTR(baud_info
, 0400, dgrp_tty_baud_show
, NULL
);
323 static ssize_t
dgrp_tty_msignals_show(struct device
*d
,
324 struct device_attribute
*attr
, char *buf
)
326 struct ch_struct
*ch
;
327 struct un_struct
*un
;
331 un
= (struct un_struct
*) dev_get_drvdata(d
);
338 if (ch
->ch_open_count
) {
339 return snprintf(buf
, PAGE_SIZE
, "%s %s %s %s %s %s\n",
340 (ch
->ch_s_mlast
& DM_RTS
) ? "RTS" : "",
341 (ch
->ch_s_mlast
& DM_CTS
) ? "CTS" : "",
342 (ch
->ch_s_mlast
& DM_DTR
) ? "DTR" : "",
343 (ch
->ch_s_mlast
& DM_DSR
) ? "DSR" : "",
344 (ch
->ch_s_mlast
& DM_CD
) ? "DCD" : "",
345 (ch
->ch_s_mlast
& DM_RI
) ? "RI" : "");
349 static DEVICE_ATTR(msignals_info
, 0400, dgrp_tty_msignals_show
, NULL
);
352 static ssize_t
dgrp_tty_iflag_show(struct device
*d
,
353 struct device_attribute
*attr
, char *buf
)
355 struct ch_struct
*ch
;
356 struct un_struct
*un
;
360 un
= (struct un_struct
*) dev_get_drvdata(d
);
366 return snprintf(buf
, PAGE_SIZE
, "%x\n", ch
->ch_s_iflag
);
368 static DEVICE_ATTR(iflag_info
, 0600, dgrp_tty_iflag_show
, NULL
);
371 static ssize_t
dgrp_tty_cflag_show(struct device
*d
,
372 struct device_attribute
*attr
, char *buf
)
374 struct ch_struct
*ch
;
375 struct un_struct
*un
;
379 un
= (struct un_struct
*) dev_get_drvdata(d
);
385 return snprintf(buf
, PAGE_SIZE
, "%x\n", ch
->ch_s_cflag
);
387 static DEVICE_ATTR(cflag_info
, 0600, dgrp_tty_cflag_show
, NULL
);
390 static ssize_t
dgrp_tty_oflag_show(struct device
*d
,
391 struct device_attribute
*attr
, char *buf
)
393 struct ch_struct
*ch
;
394 struct un_struct
*un
;
398 un
= (struct un_struct
*) dev_get_drvdata(d
);
404 return snprintf(buf
, PAGE_SIZE
, "%x\n", ch
->ch_s_oflag
);
406 static DEVICE_ATTR(oflag_info
, 0600, dgrp_tty_oflag_show
, NULL
);
409 static ssize_t
dgrp_tty_digi_flag_show(struct device
*d
,
410 struct device_attribute
*attr
, char *buf
)
412 struct ch_struct
*ch
;
413 struct un_struct
*un
;
417 un
= (struct un_struct
*) dev_get_drvdata(d
);
423 return snprintf(buf
, PAGE_SIZE
, "%x\n", ch
->ch_digi
.digi_flags
);
425 static DEVICE_ATTR(digi_flag_info
, 0600, dgrp_tty_digi_flag_show
, NULL
);
428 static ssize_t
dgrp_tty_rxcount_show(struct device
*d
,
429 struct device_attribute
*attr
, char *buf
)
431 struct ch_struct
*ch
;
432 struct un_struct
*un
;
436 un
= (struct un_struct
*) dev_get_drvdata(d
);
442 return snprintf(buf
, PAGE_SIZE
, "%d\n", ch
->ch_rxcount
);
444 static DEVICE_ATTR(rxcount_info
, 0600, dgrp_tty_rxcount_show
, NULL
);
447 static ssize_t
dgrp_tty_txcount_show(struct device
*d
,
448 struct device_attribute
*attr
, char *buf
)
450 struct ch_struct
*ch
;
451 struct un_struct
*un
;
455 un
= (struct un_struct
*) dev_get_drvdata(d
);
461 return snprintf(buf
, PAGE_SIZE
, "%d\n", ch
->ch_txcount
);
463 static DEVICE_ATTR(txcount_info
, 0600, dgrp_tty_txcount_show
, NULL
);
466 static ssize_t
dgrp_tty_name_show(struct device
*d
,
467 struct device_attribute
*attr
, char *buf
)
469 struct nd_struct
*nd
;
470 struct ch_struct
*ch
;
471 struct un_struct
*un
;
476 un
= (struct un_struct
*) dev_get_drvdata(d
);
486 ID_TO_CHAR(nd
->nd_ID
, name
);
488 return snprintf(buf
, PAGE_SIZE
, "%s%s%02d\n",
489 un
->un_type
== SERIAL_TYPE_XPRINT
? "pr" : "tty",
490 name
, ch
->ch_portnum
);
492 static DEVICE_ATTR(custom_name
, 0600, dgrp_tty_name_show
, NULL
);
495 static struct attribute
*dgrp_sysfs_tty_entries
[] = {
496 &dev_attr_state_info
.attr
,
497 &dev_attr_baud_info
.attr
,
498 &dev_attr_msignals_info
.attr
,
499 &dev_attr_iflag_info
.attr
,
500 &dev_attr_cflag_info
.attr
,
501 &dev_attr_oflag_info
.attr
,
502 &dev_attr_digi_flag_info
.attr
,
503 &dev_attr_rxcount_info
.attr
,
504 &dev_attr_txcount_info
.attr
,
505 &dev_attr_custom_name
.attr
,
510 static struct attribute_group dgrp_tty_attribute_group
= {
512 .attrs
= dgrp_sysfs_tty_entries
,
516 void dgrp_create_tty_sysfs(struct un_struct
*un
, struct device
*c
)
520 ret
= sysfs_create_group(&c
->kobj
, &dgrp_tty_attribute_group
);
522 pr_alert("%s: failed to create sysfs tty device attributes.\n",
524 sysfs_remove_group(&c
->kobj
, &dgrp_tty_attribute_group
);
528 dev_set_drvdata(c
, un
);
533 void dgrp_remove_tty_sysfs(struct device
*c
)
535 sysfs_remove_group(&c
->kobj
, &dgrp_tty_attribute_group
);