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 if (sscanf(buf
, "0x%x\n", &dgrp_poll_tick
) != 1)
73 static DEVICE_ATTR(pollrate
, 0600, dgrp_class_pollrate_show
,
74 dgrp_class_pollrate_store
);
76 static struct attribute
*dgrp_sysfs_global_settings_entries
[] = {
77 &dev_attr_pollrate
.attr
,
78 &dev_attr_register_with_sysfs
.attr
,
83 static struct attribute_group dgrp_global_settings_attribute_group
= {
85 .attrs
= dgrp_sysfs_global_settings_entries
,
90 int dgrp_create_class_sysfs_files(void)
93 int max_majors
= 1U << (32 - MINORBITS
);
95 dgrp_class
= class_create(THIS_MODULE
, "digi_realport");
96 if (IS_ERR(dgrp_class
))
97 return PTR_ERR(dgrp_class
);
98 ret
= class_create_file(dgrp_class
, &class_attr_driver_version
);
102 dgrp_class_global_settings_dev
= device_create(dgrp_class
, NULL
,
103 MKDEV(0, max_majors
+ 1), NULL
, "driver_settings");
104 if (IS_ERR(dgrp_class_global_settings_dev
)) {
105 ret
= PTR_ERR(dgrp_class_global_settings_dev
);
108 ret
= sysfs_create_group(&dgrp_class_global_settings_dev
->kobj
,
109 &dgrp_global_settings_attribute_group
);
111 pr_alert("%s: failed to create sysfs global settings device attributes.\n",
116 dgrp_class_nodes_dev
= device_create(dgrp_class
, NULL
,
117 MKDEV(0, max_majors
+ 2), NULL
, "nodes");
118 if (IS_ERR(dgrp_class_nodes_dev
)) {
119 ret
= PTR_ERR(dgrp_class_nodes_dev
);
125 sysfs_remove_group(&dgrp_class_global_settings_dev
->kobj
,
126 &dgrp_global_settings_attribute_group
);
128 device_destroy(dgrp_class
, MKDEV(0, max_majors
+ 1));
130 class_remove_file(dgrp_class
, &class_attr_driver_version
);
132 class_destroy(dgrp_class
);
137 void dgrp_remove_class_sysfs_files(void)
139 struct nd_struct
*nd
;
140 int max_majors
= 1U << (32 - MINORBITS
);
142 list_for_each_entry(nd
, &nd_struct_list
, list
)
143 dgrp_remove_node_class_sysfs_files(nd
);
145 sysfs_remove_group(&dgrp_class_global_settings_dev
->kobj
,
146 &dgrp_global_settings_attribute_group
);
148 class_remove_file(dgrp_class
, &class_attr_driver_version
);
150 device_destroy(dgrp_class
, MKDEV(0, max_majors
+ 1));
151 device_destroy(dgrp_class
, MKDEV(0, max_majors
+ 2));
152 class_destroy(dgrp_class
);
155 static ssize_t
dgrp_node_state_show(struct device
*c
,
156 struct device_attribute
*attr
, char *buf
)
158 struct nd_struct
*nd
;
162 nd
= dev_get_drvdata(c
);
166 return snprintf(buf
, PAGE_SIZE
, "%s\n", ND_STATE_STR(nd
->nd_state
));
169 static DEVICE_ATTR(state
, 0600, dgrp_node_state_show
, NULL
);
171 static ssize_t
dgrp_node_description_show(struct device
*c
,
172 struct device_attribute
*attr
,
175 struct nd_struct
*nd
;
179 nd
= dev_get_drvdata(c
);
183 if (nd
->nd_state
== NS_READY
)
184 return snprintf(buf
, PAGE_SIZE
, "%s\n", nd
->nd_ps_desc
);
187 static DEVICE_ATTR(description_info
, 0600, dgrp_node_description_show
, NULL
);
189 static ssize_t
dgrp_node_hw_version_show(struct device
*c
,
190 struct device_attribute
*attr
,
193 struct nd_struct
*nd
;
197 nd
= dev_get_drvdata(c
);
201 if (nd
->nd_state
== NS_READY
)
202 return snprintf(buf
, PAGE_SIZE
, "%d.%d\n",
203 (nd
->nd_hw_ver
>> 8) & 0xff,
204 nd
->nd_hw_ver
& 0xff);
208 static DEVICE_ATTR(hw_version_info
, 0600, dgrp_node_hw_version_show
, NULL
);
210 static ssize_t
dgrp_node_hw_id_show(struct device
*c
,
211 struct device_attribute
*attr
, char *buf
)
213 struct nd_struct
*nd
;
217 nd
= dev_get_drvdata(c
);
222 if (nd
->nd_state
== NS_READY
)
223 return snprintf(buf
, PAGE_SIZE
, "%d\n", nd
->nd_hw_id
);
226 static DEVICE_ATTR(hw_id_info
, 0600, dgrp_node_hw_id_show
, NULL
);
228 static ssize_t
dgrp_node_sw_version_show(struct device
*c
,
229 struct device_attribute
*attr
,
232 struct nd_struct
*nd
;
237 nd
= dev_get_drvdata(c
);
241 if (nd
->nd_state
== NS_READY
)
242 return snprintf(buf
, PAGE_SIZE
, "%d.%d\n",
243 (nd
->nd_sw_ver
>> 8) & 0xff,
244 nd
->nd_sw_ver
& 0xff);
248 static DEVICE_ATTR(sw_version_info
, 0600, dgrp_node_sw_version_show
, NULL
);
251 static struct attribute
*dgrp_sysfs_node_entries
[] = {
252 &dev_attr_state
.attr
,
253 &dev_attr_description_info
.attr
,
254 &dev_attr_hw_version_info
.attr
,
255 &dev_attr_hw_id_info
.attr
,
256 &dev_attr_sw_version_info
.attr
,
261 static struct attribute_group dgrp_node_attribute_group
= {
263 .attrs
= dgrp_sysfs_node_entries
,
267 void dgrp_create_node_class_sysfs_files(struct nd_struct
*nd
)
273 ID_TO_CHAR(nd
->nd_ID
, name
);
275 sprintf(name
, "node%ld", nd
->nd_major
);
277 nd
->nd_class_dev
= device_create(dgrp_class
, dgrp_class_nodes_dev
,
278 MKDEV(0, nd
->nd_major
), NULL
, "%s", name
);
280 ret
= sysfs_create_group(&nd
->nd_class_dev
->kobj
,
281 &dgrp_node_attribute_group
);
284 pr_alert("%s: failed to create sysfs node device attributes.\n",
286 sysfs_remove_group(&nd
->nd_class_dev
->kobj
,
287 &dgrp_node_attribute_group
);
291 dev_set_drvdata(nd
->nd_class_dev
, nd
);
296 void dgrp_remove_node_class_sysfs_files(struct nd_struct
*nd
)
298 if (nd
->nd_class_dev
) {
299 sysfs_remove_group(&nd
->nd_class_dev
->kobj
,
300 &dgrp_node_attribute_group
);
302 device_destroy(dgrp_class
, MKDEV(0, nd
->nd_major
));
303 nd
->nd_class_dev
= NULL
;
309 static ssize_t
dgrp_tty_state_show(struct device
*d
,
310 struct device_attribute
*attr
, char *buf
)
312 struct un_struct
*un
;
316 un
= dev_get_drvdata(d
);
320 return snprintf(buf
, PAGE_SIZE
, "%s\n",
321 un
->un_open_count
? "Open" : "Closed");
323 static DEVICE_ATTR(state_info
, 0600, dgrp_tty_state_show
, NULL
);
325 static ssize_t
dgrp_tty_baud_show(struct device
*d
,
326 struct device_attribute
*attr
, char *buf
)
328 struct ch_struct
*ch
;
329 struct un_struct
*un
;
333 un
= dev_get_drvdata(d
);
339 return snprintf(buf
, PAGE_SIZE
, "%d\n",
340 un
->un_open_count
? (PORTSERVER_DIVIDEND
/ ch
->ch_s_brate
) : 0);
342 static DEVICE_ATTR(baud_info
, 0400, dgrp_tty_baud_show
, NULL
);
345 static ssize_t
dgrp_tty_msignals_show(struct device
*d
,
346 struct device_attribute
*attr
, char *buf
)
348 struct ch_struct
*ch
;
349 struct un_struct
*un
;
353 un
= dev_get_drvdata(d
);
360 if (ch
->ch_open_count
) {
361 return snprintf(buf
, PAGE_SIZE
, "%s %s %s %s %s %s\n",
362 (ch
->ch_s_mlast
& DM_RTS
) ? "RTS" : "",
363 (ch
->ch_s_mlast
& DM_CTS
) ? "CTS" : "",
364 (ch
->ch_s_mlast
& DM_DTR
) ? "DTR" : "",
365 (ch
->ch_s_mlast
& DM_DSR
) ? "DSR" : "",
366 (ch
->ch_s_mlast
& DM_CD
) ? "DCD" : "",
367 (ch
->ch_s_mlast
& DM_RI
) ? "RI" : "");
371 static DEVICE_ATTR(msignals_info
, 0400, dgrp_tty_msignals_show
, NULL
);
374 static ssize_t
dgrp_tty_iflag_show(struct device
*d
,
375 struct device_attribute
*attr
, char *buf
)
377 struct ch_struct
*ch
;
378 struct un_struct
*un
;
382 un
= dev_get_drvdata(d
);
388 return snprintf(buf
, PAGE_SIZE
, "%x\n", ch
->ch_s_iflag
);
390 static DEVICE_ATTR(iflag_info
, 0600, dgrp_tty_iflag_show
, NULL
);
393 static ssize_t
dgrp_tty_cflag_show(struct device
*d
,
394 struct device_attribute
*attr
, char *buf
)
396 struct ch_struct
*ch
;
397 struct un_struct
*un
;
401 un
= dev_get_drvdata(d
);
407 return snprintf(buf
, PAGE_SIZE
, "%x\n", ch
->ch_s_cflag
);
409 static DEVICE_ATTR(cflag_info
, 0600, dgrp_tty_cflag_show
, NULL
);
412 static ssize_t
dgrp_tty_oflag_show(struct device
*d
,
413 struct device_attribute
*attr
, char *buf
)
415 struct ch_struct
*ch
;
416 struct un_struct
*un
;
420 un
= dev_get_drvdata(d
);
426 return snprintf(buf
, PAGE_SIZE
, "%x\n", ch
->ch_s_oflag
);
428 static DEVICE_ATTR(oflag_info
, 0600, dgrp_tty_oflag_show
, NULL
);
431 static ssize_t
dgrp_tty_digi_flag_show(struct device
*d
,
432 struct device_attribute
*attr
, char *buf
)
434 struct ch_struct
*ch
;
435 struct un_struct
*un
;
439 un
= dev_get_drvdata(d
);
445 return snprintf(buf
, PAGE_SIZE
, "%x\n", ch
->ch_digi
.digi_flags
);
447 static DEVICE_ATTR(digi_flag_info
, 0600, dgrp_tty_digi_flag_show
, NULL
);
450 static ssize_t
dgrp_tty_rxcount_show(struct device
*d
,
451 struct device_attribute
*attr
, char *buf
)
453 struct ch_struct
*ch
;
454 struct un_struct
*un
;
458 un
= dev_get_drvdata(d
);
464 return snprintf(buf
, PAGE_SIZE
, "%d\n", ch
->ch_rxcount
);
466 static DEVICE_ATTR(rxcount_info
, 0600, dgrp_tty_rxcount_show
, NULL
);
469 static ssize_t
dgrp_tty_txcount_show(struct device
*d
,
470 struct device_attribute
*attr
, char *buf
)
472 struct ch_struct
*ch
;
473 struct un_struct
*un
;
477 un
= dev_get_drvdata(d
);
483 return snprintf(buf
, PAGE_SIZE
, "%d\n", ch
->ch_txcount
);
485 static DEVICE_ATTR(txcount_info
, 0600, dgrp_tty_txcount_show
, NULL
);
488 static ssize_t
dgrp_tty_name_show(struct device
*d
,
489 struct device_attribute
*attr
, char *buf
)
491 struct nd_struct
*nd
;
492 struct ch_struct
*ch
;
493 struct un_struct
*un
;
498 un
= dev_get_drvdata(d
);
508 ID_TO_CHAR(nd
->nd_ID
, name
);
510 return snprintf(buf
, PAGE_SIZE
, "%s%s%02d\n",
511 un
->un_type
== SERIAL_TYPE_XPRINT
? "pr" : "tty",
512 name
, ch
->ch_portnum
);
514 static DEVICE_ATTR(custom_name
, 0600, dgrp_tty_name_show
, NULL
);
517 static struct attribute
*dgrp_sysfs_tty_entries
[] = {
518 &dev_attr_state_info
.attr
,
519 &dev_attr_baud_info
.attr
,
520 &dev_attr_msignals_info
.attr
,
521 &dev_attr_iflag_info
.attr
,
522 &dev_attr_cflag_info
.attr
,
523 &dev_attr_oflag_info
.attr
,
524 &dev_attr_digi_flag_info
.attr
,
525 &dev_attr_rxcount_info
.attr
,
526 &dev_attr_txcount_info
.attr
,
527 &dev_attr_custom_name
.attr
,
532 static struct attribute_group dgrp_tty_attribute_group
= {
534 .attrs
= dgrp_sysfs_tty_entries
,
538 void dgrp_create_tty_sysfs(struct un_struct
*un
, struct device
*c
)
542 ret
= sysfs_create_group(&c
->kobj
, &dgrp_tty_attribute_group
);
544 pr_alert("%s: failed to create sysfs tty device attributes.\n",
546 sysfs_remove_group(&c
->kobj
, &dgrp_tty_attribute_group
);
550 dev_set_drvdata(c
, un
);
555 void dgrp_remove_tty_sysfs(struct device
*c
)
557 sysfs_remove_group(&c
->kobj
, &dgrp_tty_attribute_group
);