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b2441318 | 1 | // SPDX-License-Identifier: GPL-2.0 |
1da177e4 | 2 | /* |
1da177e4 LT |
3 | * Copyright (C) 2000 Tilmann Bitterberg |
4 | * (tilmann@bitterberg.de) | |
5 | * | |
6 | * RTAS (Runtime Abstraction Services) stuff | |
7 | * Intention is to provide a clean user interface | |
8 | * to use the RTAS. | |
9 | * | |
10 | * TODO: | |
11 | * Split off a header file and maybe move it to a different | |
12 | * location. Write Documentation on what the /proc/rtas/ entries | |
13 | * actually do. | |
14 | */ | |
15 | ||
16 | #include <linux/errno.h> | |
17 | #include <linux/sched.h> | |
18 | #include <linux/proc_fs.h> | |
19 | #include <linux/stat.h> | |
20 | #include <linux/ctype.h> | |
21 | #include <linux/time.h> | |
22 | #include <linux/string.h> | |
23 | #include <linux/init.h> | |
24 | #include <linux/seq_file.h> | |
25 | #include <linux/bitops.h> | |
143a1dec | 26 | #include <linux/rtc.h> |
1da177e4 | 27 | |
7c0f6ba6 | 28 | #include <linux/uaccess.h> |
1da177e4 LT |
29 | #include <asm/processor.h> |
30 | #include <asm/io.h> | |
31 | #include <asm/prom.h> | |
32 | #include <asm/rtas.h> | |
33 | #include <asm/machdep.h> /* for ppc_md */ | |
34 | #include <asm/time.h> | |
1da177e4 LT |
35 | |
36 | /* Token for Sensors */ | |
37 | #define KEY_SWITCH 0x0001 | |
38 | #define ENCLOSURE_SWITCH 0x0002 | |
39 | #define THERMAL_SENSOR 0x0003 | |
40 | #define LID_STATUS 0x0004 | |
41 | #define POWER_SOURCE 0x0005 | |
42 | #define BATTERY_VOLTAGE 0x0006 | |
43 | #define BATTERY_REMAINING 0x0007 | |
44 | #define BATTERY_PERCENTAGE 0x0008 | |
45 | #define EPOW_SENSOR 0x0009 | |
46 | #define BATTERY_CYCLESTATE 0x000a | |
47 | #define BATTERY_CHARGING 0x000b | |
48 | ||
49 | /* IBM specific sensors */ | |
50 | #define IBM_SURVEILLANCE 0x2328 /* 9000 */ | |
51 | #define IBM_FANRPM 0x2329 /* 9001 */ | |
52 | #define IBM_VOLTAGE 0x232a /* 9002 */ | |
53 | #define IBM_DRCONNECTOR 0x232b /* 9003 */ | |
54 | #define IBM_POWERSUPPLY 0x232c /* 9004 */ | |
55 | ||
56 | /* Status return values */ | |
57 | #define SENSOR_CRITICAL_HIGH 13 | |
58 | #define SENSOR_WARNING_HIGH 12 | |
59 | #define SENSOR_NORMAL 11 | |
60 | #define SENSOR_WARNING_LOW 10 | |
61 | #define SENSOR_CRITICAL_LOW 9 | |
62 | #define SENSOR_SUCCESS 0 | |
63 | #define SENSOR_HW_ERROR -1 | |
64 | #define SENSOR_BUSY -2 | |
65 | #define SENSOR_NOT_EXIST -3 | |
66 | #define SENSOR_DR_ENTITY -9000 | |
67 | ||
68 | /* Location Codes */ | |
69 | #define LOC_SCSI_DEV_ADDR 'A' | |
70 | #define LOC_SCSI_DEV_LOC 'B' | |
71 | #define LOC_CPU 'C' | |
72 | #define LOC_DISKETTE 'D' | |
73 | #define LOC_ETHERNET 'E' | |
74 | #define LOC_FAN 'F' | |
75 | #define LOC_GRAPHICS 'G' | |
76 | /* reserved / not used 'H' */ | |
77 | #define LOC_IO_ADAPTER 'I' | |
78 | /* reserved / not used 'J' */ | |
79 | #define LOC_KEYBOARD 'K' | |
80 | #define LOC_LCD 'L' | |
81 | #define LOC_MEMORY 'M' | |
82 | #define LOC_NV_MEMORY 'N' | |
83 | #define LOC_MOUSE 'O' | |
84 | #define LOC_PLANAR 'P' | |
85 | #define LOC_OTHER_IO 'Q' | |
86 | #define LOC_PARALLEL 'R' | |
87 | #define LOC_SERIAL 'S' | |
88 | #define LOC_DEAD_RING 'T' | |
89 | #define LOC_RACKMOUNTED 'U' /* for _u_nit is rack mounted */ | |
90 | #define LOC_VOLTAGE 'V' | |
91 | #define LOC_SWITCH_ADAPTER 'W' | |
92 | #define LOC_OTHER 'X' | |
93 | #define LOC_FIRMWARE 'Y' | |
94 | #define LOC_SCSI 'Z' | |
95 | ||
96 | /* Tokens for indicators */ | |
97 | #define TONE_FREQUENCY 0x0001 /* 0 - 1000 (HZ)*/ | |
98 | #define TONE_VOLUME 0x0002 /* 0 - 100 (%) */ | |
99 | #define SYSTEM_POWER_STATE 0x0003 | |
100 | #define WARNING_LIGHT 0x0004 | |
101 | #define DISK_ACTIVITY_LIGHT 0x0005 | |
102 | #define HEX_DISPLAY_UNIT 0x0006 | |
103 | #define BATTERY_WARNING_TIME 0x0007 | |
104 | #define CONDITION_CYCLE_REQUEST 0x0008 | |
105 | #define SURVEILLANCE_INDICATOR 0x2328 /* 9000 */ | |
106 | #define DR_ACTION 0x2329 /* 9001 */ | |
107 | #define DR_INDICATOR 0x232a /* 9002 */ | |
108 | /* 9003 - 9004: Vendor specific */ | |
109 | /* 9006 - 9999: Vendor specific */ | |
110 | ||
111 | /* other */ | |
112 | #define MAX_SENSORS 17 /* I only know of 17 sensors */ | |
113 | #define MAX_LINELENGTH 256 | |
114 | #define SENSOR_PREFIX "ibm,sensor-" | |
115 | #define cel_to_fahr(x) ((x*9/5)+32) | |
116 | ||
1da177e4 LT |
117 | struct individual_sensor { |
118 | unsigned int token; | |
119 | unsigned int quant; | |
120 | }; | |
121 | ||
122 | struct rtas_sensors { | |
123 | struct individual_sensor sensor[MAX_SENSORS]; | |
124 | unsigned int quant; | |
125 | }; | |
126 | ||
ecaf5fa0 AB |
127 | /* Globals */ |
128 | static struct rtas_sensors sensors; | |
129 | static struct device_node *rtas_node = NULL; | |
130 | static unsigned long power_on_time = 0; /* Save the time the user set */ | |
131 | static char progress_led[MAX_LINELENGTH]; | |
132 | ||
133 | static unsigned long rtas_tone_frequency = 1000; | |
134 | static unsigned long rtas_tone_volume = 0; | |
135 | ||
1da177e4 LT |
136 | /* ****************************************************************** */ |
137 | /* Declarations */ | |
138 | static int ppc_rtas_sensors_show(struct seq_file *m, void *v); | |
139 | static int ppc_rtas_clock_show(struct seq_file *m, void *v); | |
140 | static ssize_t ppc_rtas_clock_write(struct file *file, | |
141 | const char __user *buf, size_t count, loff_t *ppos); | |
142 | static int ppc_rtas_progress_show(struct seq_file *m, void *v); | |
143 | static ssize_t ppc_rtas_progress_write(struct file *file, | |
144 | const char __user *buf, size_t count, loff_t *ppos); | |
145 | static int ppc_rtas_poweron_show(struct seq_file *m, void *v); | |
146 | static ssize_t ppc_rtas_poweron_write(struct file *file, | |
147 | const char __user *buf, size_t count, loff_t *ppos); | |
148 | ||
149 | static ssize_t ppc_rtas_tone_freq_write(struct file *file, | |
150 | const char __user *buf, size_t count, loff_t *ppos); | |
151 | static int ppc_rtas_tone_freq_show(struct seq_file *m, void *v); | |
152 | static ssize_t ppc_rtas_tone_volume_write(struct file *file, | |
153 | const char __user *buf, size_t count, loff_t *ppos); | |
154 | static int ppc_rtas_tone_volume_show(struct seq_file *m, void *v); | |
155 | static int ppc_rtas_rmo_buf_show(struct seq_file *m, void *v); | |
156 | ||
157 | static int sensors_open(struct inode *inode, struct file *file) | |
158 | { | |
159 | return single_open(file, ppc_rtas_sensors_show, NULL); | |
160 | } | |
161 | ||
1c21a293 | 162 | static const struct file_operations ppc_rtas_sensors_operations = { |
1da177e4 LT |
163 | .open = sensors_open, |
164 | .read = seq_read, | |
165 | .llseek = seq_lseek, | |
166 | .release = single_release, | |
167 | }; | |
168 | ||
169 | static int poweron_open(struct inode *inode, struct file *file) | |
170 | { | |
171 | return single_open(file, ppc_rtas_poweron_show, NULL); | |
172 | } | |
173 | ||
1c21a293 | 174 | static const struct file_operations ppc_rtas_poweron_operations = { |
1da177e4 LT |
175 | .open = poweron_open, |
176 | .read = seq_read, | |
177 | .llseek = seq_lseek, | |
178 | .write = ppc_rtas_poweron_write, | |
179 | .release = single_release, | |
180 | }; | |
181 | ||
182 | static int progress_open(struct inode *inode, struct file *file) | |
183 | { | |
184 | return single_open(file, ppc_rtas_progress_show, NULL); | |
185 | } | |
186 | ||
1c21a293 | 187 | static const struct file_operations ppc_rtas_progress_operations = { |
1da177e4 LT |
188 | .open = progress_open, |
189 | .read = seq_read, | |
190 | .llseek = seq_lseek, | |
191 | .write = ppc_rtas_progress_write, | |
192 | .release = single_release, | |
193 | }; | |
194 | ||
195 | static int clock_open(struct inode *inode, struct file *file) | |
196 | { | |
197 | return single_open(file, ppc_rtas_clock_show, NULL); | |
198 | } | |
199 | ||
1c21a293 | 200 | static const struct file_operations ppc_rtas_clock_operations = { |
1da177e4 LT |
201 | .open = clock_open, |
202 | .read = seq_read, | |
203 | .llseek = seq_lseek, | |
204 | .write = ppc_rtas_clock_write, | |
205 | .release = single_release, | |
206 | }; | |
207 | ||
208 | static int tone_freq_open(struct inode *inode, struct file *file) | |
209 | { | |
210 | return single_open(file, ppc_rtas_tone_freq_show, NULL); | |
211 | } | |
212 | ||
1c21a293 | 213 | static const struct file_operations ppc_rtas_tone_freq_operations = { |
1da177e4 LT |
214 | .open = tone_freq_open, |
215 | .read = seq_read, | |
216 | .llseek = seq_lseek, | |
217 | .write = ppc_rtas_tone_freq_write, | |
218 | .release = single_release, | |
219 | }; | |
220 | ||
221 | static int tone_volume_open(struct inode *inode, struct file *file) | |
222 | { | |
223 | return single_open(file, ppc_rtas_tone_volume_show, NULL); | |
224 | } | |
225 | ||
1c21a293 | 226 | static const struct file_operations ppc_rtas_tone_volume_operations = { |
1da177e4 LT |
227 | .open = tone_volume_open, |
228 | .read = seq_read, | |
229 | .llseek = seq_lseek, | |
230 | .write = ppc_rtas_tone_volume_write, | |
231 | .release = single_release, | |
232 | }; | |
233 | ||
234 | static int rmo_buf_open(struct inode *inode, struct file *file) | |
235 | { | |
236 | return single_open(file, ppc_rtas_rmo_buf_show, NULL); | |
237 | } | |
238 | ||
1c21a293 | 239 | static const struct file_operations ppc_rtas_rmo_buf_ops = { |
1da177e4 LT |
240 | .open = rmo_buf_open, |
241 | .read = seq_read, | |
242 | .llseek = seq_lseek, | |
243 | .release = single_release, | |
244 | }; | |
245 | ||
246 | static int ppc_rtas_find_all_sensors(void); | |
247 | static void ppc_rtas_process_sensor(struct seq_file *m, | |
a7f67bdf | 248 | struct individual_sensor *s, int state, int error, const char *loc); |
1da177e4 LT |
249 | static char *ppc_rtas_process_error(int error); |
250 | static void get_location_code(struct seq_file *m, | |
a7f67bdf JK |
251 | struct individual_sensor *s, const char *loc); |
252 | static void check_location_string(struct seq_file *m, const char *c); | |
253 | static void check_location(struct seq_file *m, const char *c); | |
1da177e4 LT |
254 | |
255 | static int __init proc_rtas_init(void) | |
256 | { | |
e8222502 | 257 | if (!machine_is(pseries)) |
49c28e4e | 258 | return -ENODEV; |
1da177e4 LT |
259 | |
260 | rtas_node = of_find_node_by_name(NULL, "rtas"); | |
261 | if (rtas_node == NULL) | |
49c28e4e | 262 | return -ENODEV; |
1da177e4 | 263 | |
9becd2a0 | 264 | proc_create("powerpc/rtas/progress", S_IRUGO|S_IWUSR, NULL, |
66747138 | 265 | &ppc_rtas_progress_operations); |
9becd2a0 | 266 | proc_create("powerpc/rtas/clock", S_IRUGO|S_IWUSR, NULL, |
66747138 | 267 | &ppc_rtas_clock_operations); |
9becd2a0 | 268 | proc_create("powerpc/rtas/poweron", S_IWUSR|S_IRUGO, NULL, |
66747138 | 269 | &ppc_rtas_poweron_operations); |
9becd2a0 | 270 | proc_create("powerpc/rtas/sensors", S_IRUGO, NULL, |
66747138 | 271 | &ppc_rtas_sensors_operations); |
9becd2a0 | 272 | proc_create("powerpc/rtas/frequency", S_IWUSR|S_IRUGO, NULL, |
66747138 | 273 | &ppc_rtas_tone_freq_operations); |
9becd2a0 | 274 | proc_create("powerpc/rtas/volume", S_IWUSR|S_IRUGO, NULL, |
66747138 | 275 | &ppc_rtas_tone_volume_operations); |
9becd2a0 | 276 | proc_create("powerpc/rtas/rmo_buffer", S_IRUSR, NULL, |
66747138 | 277 | &ppc_rtas_rmo_buf_ops); |
1da177e4 LT |
278 | return 0; |
279 | } | |
280 | ||
281 | __initcall(proc_rtas_init); | |
282 | ||
283 | static int parse_number(const char __user *p, size_t count, unsigned long *val) | |
284 | { | |
285 | char buf[40]; | |
286 | char *end; | |
287 | ||
288 | if (count > 39) | |
289 | return -EINVAL; | |
290 | ||
291 | if (copy_from_user(buf, p, count)) | |
292 | return -EFAULT; | |
293 | ||
294 | buf[count] = 0; | |
295 | ||
296 | *val = simple_strtoul(buf, &end, 10); | |
297 | if (*end && *end != '\n') | |
298 | return -EINVAL; | |
299 | ||
300 | return 0; | |
301 | } | |
302 | ||
303 | /* ****************************************************************** */ | |
304 | /* POWER-ON-TIME */ | |
305 | /* ****************************************************************** */ | |
306 | static ssize_t ppc_rtas_poweron_write(struct file *file, | |
307 | const char __user *buf, size_t count, loff_t *ppos) | |
308 | { | |
309 | struct rtc_time tm; | |
310 | unsigned long nowtime; | |
311 | int error = parse_number(buf, count, &nowtime); | |
312 | if (error) | |
313 | return error; | |
314 | ||
315 | power_on_time = nowtime; /* save the time */ | |
316 | ||
317 | to_tm(nowtime, &tm); | |
318 | ||
319 | error = rtas_call(rtas_token("set-time-for-power-on"), 7, 1, NULL, | |
320 | tm.tm_year, tm.tm_mon, tm.tm_mday, | |
321 | tm.tm_hour, tm.tm_min, tm.tm_sec, 0 /* nano */); | |
322 | if (error) | |
323 | printk(KERN_WARNING "error: setting poweron time returned: %s\n", | |
324 | ppc_rtas_process_error(error)); | |
325 | return count; | |
326 | } | |
327 | /* ****************************************************************** */ | |
328 | static int ppc_rtas_poweron_show(struct seq_file *m, void *v) | |
329 | { | |
330 | if (power_on_time == 0) | |
331 | seq_printf(m, "Power on time not set\n"); | |
332 | else | |
333 | seq_printf(m, "%lu\n",power_on_time); | |
334 | return 0; | |
335 | } | |
336 | ||
337 | /* ****************************************************************** */ | |
338 | /* PROGRESS */ | |
339 | /* ****************************************************************** */ | |
340 | static ssize_t ppc_rtas_progress_write(struct file *file, | |
341 | const char __user *buf, size_t count, loff_t *ppos) | |
342 | { | |
343 | unsigned long hex; | |
344 | ||
345 | if (count >= MAX_LINELENGTH) | |
346 | count = MAX_LINELENGTH -1; | |
347 | if (copy_from_user(progress_led, buf, count)) { /* save the string */ | |
348 | return -EFAULT; | |
349 | } | |
350 | progress_led[count] = 0; | |
351 | ||
352 | /* Lets see if the user passed hexdigits */ | |
353 | hex = simple_strtoul(progress_led, NULL, 10); | |
354 | ||
6566c6f1 | 355 | rtas_progress ((char *)progress_led, hex); |
1da177e4 LT |
356 | return count; |
357 | ||
358 | /* clear the line */ | |
6566c6f1 | 359 | /* rtas_progress(" ", 0xffff);*/ |
1da177e4 LT |
360 | } |
361 | /* ****************************************************************** */ | |
362 | static int ppc_rtas_progress_show(struct seq_file *m, void *v) | |
363 | { | |
9a6b5070 | 364 | if (progress_led[0]) |
1da177e4 LT |
365 | seq_printf(m, "%s\n", progress_led); |
366 | return 0; | |
367 | } | |
368 | ||
369 | /* ****************************************************************** */ | |
370 | /* CLOCK */ | |
371 | /* ****************************************************************** */ | |
372 | static ssize_t ppc_rtas_clock_write(struct file *file, | |
373 | const char __user *buf, size_t count, loff_t *ppos) | |
374 | { | |
375 | struct rtc_time tm; | |
376 | unsigned long nowtime; | |
377 | int error = parse_number(buf, count, &nowtime); | |
378 | if (error) | |
379 | return error; | |
380 | ||
381 | to_tm(nowtime, &tm); | |
382 | error = rtas_call(rtas_token("set-time-of-day"), 7, 1, NULL, | |
383 | tm.tm_year, tm.tm_mon, tm.tm_mday, | |
384 | tm.tm_hour, tm.tm_min, tm.tm_sec, 0); | |
385 | if (error) | |
386 | printk(KERN_WARNING "error: setting the clock returned: %s\n", | |
387 | ppc_rtas_process_error(error)); | |
388 | return count; | |
389 | } | |
390 | /* ****************************************************************** */ | |
391 | static int ppc_rtas_clock_show(struct seq_file *m, void *v) | |
392 | { | |
393 | int ret[8]; | |
394 | int error = rtas_call(rtas_token("get-time-of-day"), 0, 8, ret); | |
395 | ||
396 | if (error) { | |
397 | printk(KERN_WARNING "error: reading the clock returned: %s\n", | |
398 | ppc_rtas_process_error(error)); | |
399 | seq_printf(m, "0"); | |
400 | } else { | |
401 | unsigned int year, mon, day, hour, min, sec; | |
402 | year = ret[0]; mon = ret[1]; day = ret[2]; | |
403 | hour = ret[3]; min = ret[4]; sec = ret[5]; | |
404 | seq_printf(m, "%lu\n", | |
405 | mktime(year, mon, day, hour, min, sec)); | |
406 | } | |
407 | return 0; | |
408 | } | |
409 | ||
410 | /* ****************************************************************** */ | |
411 | /* SENSOR STUFF */ | |
412 | /* ****************************************************************** */ | |
413 | static int ppc_rtas_sensors_show(struct seq_file *m, void *v) | |
414 | { | |
415 | int i,j; | |
416 | int state, error; | |
417 | int get_sensor_state = rtas_token("get-sensor-state"); | |
418 | ||
419 | seq_printf(m, "RTAS (RunTime Abstraction Services) Sensor Information\n"); | |
420 | seq_printf(m, "Sensor\t\tValue\t\tCondition\tLocation\n"); | |
421 | seq_printf(m, "********************************************************\n"); | |
422 | ||
423 | if (ppc_rtas_find_all_sensors() != 0) { | |
424 | seq_printf(m, "\nNo sensors are available\n"); | |
425 | return 0; | |
426 | } | |
427 | ||
428 | for (i=0; i<sensors.quant; i++) { | |
429 | struct individual_sensor *p = &sensors.sensor[i]; | |
430 | char rstr[64]; | |
a7f67bdf | 431 | const char *loc; |
1da177e4 LT |
432 | int llen, offs; |
433 | ||
434 | sprintf (rstr, SENSOR_PREFIX"%04d", p->token); | |
e2eb6392 | 435 | loc = of_get_property(rtas_node, rstr, &llen); |
1da177e4 LT |
436 | |
437 | /* A sensor may have multiple instances */ | |
438 | for (j = 0, offs = 0; j <= p->quant; j++) { | |
439 | error = rtas_call(get_sensor_state, 2, 2, &state, | |
440 | p->token, j); | |
441 | ||
442 | ppc_rtas_process_sensor(m, p, state, error, loc); | |
443 | seq_putc(m, '\n'); | |
444 | if (loc) { | |
445 | offs += strlen(loc) + 1; | |
446 | loc += strlen(loc) + 1; | |
447 | if (offs >= llen) | |
448 | loc = NULL; | |
449 | } | |
450 | } | |
451 | } | |
452 | return 0; | |
453 | } | |
454 | ||
455 | /* ****************************************************************** */ | |
456 | ||
457 | static int ppc_rtas_find_all_sensors(void) | |
458 | { | |
a7f67bdf | 459 | const unsigned int *utmp; |
1da177e4 LT |
460 | int len, i; |
461 | ||
e2eb6392 | 462 | utmp = of_get_property(rtas_node, "rtas-sensors", &len); |
1da177e4 LT |
463 | if (utmp == NULL) { |
464 | printk (KERN_ERR "error: could not get rtas-sensors\n"); | |
465 | return 1; | |
466 | } | |
467 | ||
468 | sensors.quant = len / 8; /* int + int */ | |
469 | ||
470 | for (i=0; i<sensors.quant; i++) { | |
471 | sensors.sensor[i].token = *utmp++; | |
472 | sensors.sensor[i].quant = *utmp++; | |
473 | } | |
474 | return 0; | |
475 | } | |
476 | ||
477 | /* ****************************************************************** */ | |
478 | /* | |
479 | * Builds a string of what rtas returned | |
480 | */ | |
481 | static char *ppc_rtas_process_error(int error) | |
482 | { | |
483 | switch (error) { | |
484 | case SENSOR_CRITICAL_HIGH: | |
485 | return "(critical high)"; | |
486 | case SENSOR_WARNING_HIGH: | |
487 | return "(warning high)"; | |
488 | case SENSOR_NORMAL: | |
489 | return "(normal)"; | |
490 | case SENSOR_WARNING_LOW: | |
491 | return "(warning low)"; | |
492 | case SENSOR_CRITICAL_LOW: | |
493 | return "(critical low)"; | |
494 | case SENSOR_SUCCESS: | |
495 | return "(read ok)"; | |
496 | case SENSOR_HW_ERROR: | |
497 | return "(hardware error)"; | |
498 | case SENSOR_BUSY: | |
499 | return "(busy)"; | |
500 | case SENSOR_NOT_EXIST: | |
501 | return "(non existent)"; | |
502 | case SENSOR_DR_ENTITY: | |
503 | return "(dr entity removed)"; | |
504 | default: | |
505 | return "(UNKNOWN)"; | |
506 | } | |
507 | } | |
508 | ||
509 | /* ****************************************************************** */ | |
510 | /* | |
511 | * Builds a string out of what the sensor said | |
512 | */ | |
513 | ||
514 | static void ppc_rtas_process_sensor(struct seq_file *m, | |
a7f67bdf | 515 | struct individual_sensor *s, int state, int error, const char *loc) |
1da177e4 LT |
516 | { |
517 | /* Defined return vales */ | |
518 | const char * key_switch[] = { "Off\t", "Normal\t", "Secure\t", | |
519 | "Maintenance" }; | |
520 | const char * enclosure_switch[] = { "Closed", "Open" }; | |
521 | const char * lid_status[] = { " ", "Open", "Closed" }; | |
522 | const char * power_source[] = { "AC\t", "Battery", | |
523 | "AC & Battery" }; | |
524 | const char * battery_remaining[] = { "Very Low", "Low", "Mid", "High" }; | |
525 | const char * epow_sensor[] = { | |
526 | "EPOW Reset", "Cooling warning", "Power warning", | |
527 | "System shutdown", "System halt", "EPOW main enclosure", | |
528 | "EPOW power off" }; | |
529 | const char * battery_cyclestate[] = { "None", "In progress", | |
530 | "Requested" }; | |
531 | const char * battery_charging[] = { "Charging", "Discharching", | |
532 | "No current flow" }; | |
533 | const char * ibm_drconnector[] = { "Empty", "Present", "Unusable", | |
534 | "Exchange" }; | |
535 | ||
536 | int have_strings = 0; | |
537 | int num_states = 0; | |
538 | int temperature = 0; | |
539 | int unknown = 0; | |
540 | ||
541 | /* What kind of sensor do we have here? */ | |
542 | ||
543 | switch (s->token) { | |
544 | case KEY_SWITCH: | |
545 | seq_printf(m, "Key switch:\t"); | |
546 | num_states = sizeof(key_switch) / sizeof(char *); | |
547 | if (state < num_states) { | |
548 | seq_printf(m, "%s\t", key_switch[state]); | |
549 | have_strings = 1; | |
550 | } | |
551 | break; | |
552 | case ENCLOSURE_SWITCH: | |
553 | seq_printf(m, "Enclosure switch:\t"); | |
554 | num_states = sizeof(enclosure_switch) / sizeof(char *); | |
555 | if (state < num_states) { | |
556 | seq_printf(m, "%s\t", | |
557 | enclosure_switch[state]); | |
558 | have_strings = 1; | |
559 | } | |
560 | break; | |
561 | case THERMAL_SENSOR: | |
562 | seq_printf(m, "Temp. (C/F):\t"); | |
563 | temperature = 1; | |
564 | break; | |
565 | case LID_STATUS: | |
566 | seq_printf(m, "Lid status:\t"); | |
567 | num_states = sizeof(lid_status) / sizeof(char *); | |
568 | if (state < num_states) { | |
569 | seq_printf(m, "%s\t", lid_status[state]); | |
570 | have_strings = 1; | |
571 | } | |
572 | break; | |
573 | case POWER_SOURCE: | |
574 | seq_printf(m, "Power source:\t"); | |
575 | num_states = sizeof(power_source) / sizeof(char *); | |
576 | if (state < num_states) { | |
577 | seq_printf(m, "%s\t", | |
578 | power_source[state]); | |
579 | have_strings = 1; | |
580 | } | |
581 | break; | |
582 | case BATTERY_VOLTAGE: | |
583 | seq_printf(m, "Battery voltage:\t"); | |
584 | break; | |
585 | case BATTERY_REMAINING: | |
586 | seq_printf(m, "Battery remaining:\t"); | |
587 | num_states = sizeof(battery_remaining) / sizeof(char *); | |
588 | if (state < num_states) | |
589 | { | |
590 | seq_printf(m, "%s\t", | |
591 | battery_remaining[state]); | |
592 | have_strings = 1; | |
593 | } | |
594 | break; | |
595 | case BATTERY_PERCENTAGE: | |
596 | seq_printf(m, "Battery percentage:\t"); | |
597 | break; | |
598 | case EPOW_SENSOR: | |
599 | seq_printf(m, "EPOW Sensor:\t"); | |
600 | num_states = sizeof(epow_sensor) / sizeof(char *); | |
601 | if (state < num_states) { | |
602 | seq_printf(m, "%s\t", epow_sensor[state]); | |
603 | have_strings = 1; | |
604 | } | |
605 | break; | |
606 | case BATTERY_CYCLESTATE: | |
607 | seq_printf(m, "Battery cyclestate:\t"); | |
608 | num_states = sizeof(battery_cyclestate) / | |
609 | sizeof(char *); | |
610 | if (state < num_states) { | |
611 | seq_printf(m, "%s\t", | |
612 | battery_cyclestate[state]); | |
613 | have_strings = 1; | |
614 | } | |
615 | break; | |
616 | case BATTERY_CHARGING: | |
617 | seq_printf(m, "Battery Charging:\t"); | |
618 | num_states = sizeof(battery_charging) / sizeof(char *); | |
619 | if (state < num_states) { | |
620 | seq_printf(m, "%s\t", | |
621 | battery_charging[state]); | |
622 | have_strings = 1; | |
623 | } | |
624 | break; | |
625 | case IBM_SURVEILLANCE: | |
626 | seq_printf(m, "Surveillance:\t"); | |
627 | break; | |
628 | case IBM_FANRPM: | |
629 | seq_printf(m, "Fan (rpm):\t"); | |
630 | break; | |
631 | case IBM_VOLTAGE: | |
632 | seq_printf(m, "Voltage (mv):\t"); | |
633 | break; | |
634 | case IBM_DRCONNECTOR: | |
635 | seq_printf(m, "DR connector:\t"); | |
636 | num_states = sizeof(ibm_drconnector) / sizeof(char *); | |
637 | if (state < num_states) { | |
638 | seq_printf(m, "%s\t", | |
639 | ibm_drconnector[state]); | |
640 | have_strings = 1; | |
641 | } | |
642 | break; | |
643 | case IBM_POWERSUPPLY: | |
644 | seq_printf(m, "Powersupply:\t"); | |
645 | break; | |
646 | default: | |
647 | seq_printf(m, "Unknown sensor (type %d), ignoring it\n", | |
648 | s->token); | |
649 | unknown = 1; | |
650 | have_strings = 1; | |
651 | break; | |
652 | } | |
653 | if (have_strings == 0) { | |
654 | if (temperature) { | |
655 | seq_printf(m, "%4d /%4d\t", state, cel_to_fahr(state)); | |
656 | } else | |
657 | seq_printf(m, "%10d\t", state); | |
658 | } | |
659 | if (unknown == 0) { | |
660 | seq_printf(m, "%s\t", ppc_rtas_process_error(error)); | |
661 | get_location_code(m, s, loc); | |
662 | } | |
663 | } | |
664 | ||
665 | /* ****************************************************************** */ | |
666 | ||
a7f67bdf | 667 | static void check_location(struct seq_file *m, const char *c) |
1da177e4 LT |
668 | { |
669 | switch (c[0]) { | |
670 | case LOC_PLANAR: | |
671 | seq_printf(m, "Planar #%c", c[1]); | |
672 | break; | |
673 | case LOC_CPU: | |
674 | seq_printf(m, "CPU #%c", c[1]); | |
675 | break; | |
676 | case LOC_FAN: | |
677 | seq_printf(m, "Fan #%c", c[1]); | |
678 | break; | |
679 | case LOC_RACKMOUNTED: | |
680 | seq_printf(m, "Rack #%c", c[1]); | |
681 | break; | |
682 | case LOC_VOLTAGE: | |
683 | seq_printf(m, "Voltage #%c", c[1]); | |
684 | break; | |
685 | case LOC_LCD: | |
686 | seq_printf(m, "LCD #%c", c[1]); | |
687 | break; | |
688 | case '.': | |
689 | seq_printf(m, "- %c", c[1]); | |
690 | break; | |
691 | default: | |
692 | seq_printf(m, "Unknown location"); | |
693 | break; | |
694 | } | |
695 | } | |
696 | ||
697 | ||
698 | /* ****************************************************************** */ | |
699 | /* | |
700 | * Format: | |
701 | * ${LETTER}${NUMBER}[[-/]${LETTER}${NUMBER} [ ... ] ] | |
027dfac6 | 702 | * the '.' may be an abbreviation |
1da177e4 | 703 | */ |
a7f67bdf | 704 | static void check_location_string(struct seq_file *m, const char *c) |
1da177e4 LT |
705 | { |
706 | while (*c) { | |
707 | if (isalpha(*c) || *c == '.') | |
708 | check_location(m, c); | |
709 | else if (*c == '/' || *c == '-') | |
710 | seq_printf(m, " at "); | |
711 | c++; | |
712 | } | |
713 | } | |
714 | ||
715 | ||
716 | /* ****************************************************************** */ | |
717 | ||
a7f67bdf JK |
718 | static void get_location_code(struct seq_file *m, struct individual_sensor *s, |
719 | const char *loc) | |
1da177e4 LT |
720 | { |
721 | if (!loc || !*loc) { | |
722 | seq_printf(m, "---");/* does not have a location */ | |
723 | } else { | |
724 | check_location_string(m, loc); | |
725 | } | |
726 | seq_putc(m, ' '); | |
727 | } | |
728 | /* ****************************************************************** */ | |
729 | /* INDICATORS - Tone Frequency */ | |
730 | /* ****************************************************************** */ | |
731 | static ssize_t ppc_rtas_tone_freq_write(struct file *file, | |
732 | const char __user *buf, size_t count, loff_t *ppos) | |
733 | { | |
734 | unsigned long freq; | |
735 | int error = parse_number(buf, count, &freq); | |
736 | if (error) | |
737 | return error; | |
738 | ||
739 | rtas_tone_frequency = freq; /* save it for later */ | |
740 | error = rtas_call(rtas_token("set-indicator"), 3, 1, NULL, | |
741 | TONE_FREQUENCY, 0, freq); | |
742 | if (error) | |
743 | printk(KERN_WARNING "error: setting tone frequency returned: %s\n", | |
744 | ppc_rtas_process_error(error)); | |
745 | return count; | |
746 | } | |
747 | /* ****************************************************************** */ | |
748 | static int ppc_rtas_tone_freq_show(struct seq_file *m, void *v) | |
749 | { | |
750 | seq_printf(m, "%lu\n", rtas_tone_frequency); | |
751 | return 0; | |
752 | } | |
753 | /* ****************************************************************** */ | |
754 | /* INDICATORS - Tone Volume */ | |
755 | /* ****************************************************************** */ | |
756 | static ssize_t ppc_rtas_tone_volume_write(struct file *file, | |
757 | const char __user *buf, size_t count, loff_t *ppos) | |
758 | { | |
759 | unsigned long volume; | |
760 | int error = parse_number(buf, count, &volume); | |
761 | if (error) | |
762 | return error; | |
763 | ||
764 | if (volume > 100) | |
765 | volume = 100; | |
766 | ||
767 | rtas_tone_volume = volume; /* save it for later */ | |
768 | error = rtas_call(rtas_token("set-indicator"), 3, 1, NULL, | |
769 | TONE_VOLUME, 0, volume); | |
770 | if (error) | |
771 | printk(KERN_WARNING "error: setting tone volume returned: %s\n", | |
772 | ppc_rtas_process_error(error)); | |
773 | return count; | |
774 | } | |
775 | /* ****************************************************************** */ | |
776 | static int ppc_rtas_tone_volume_show(struct seq_file *m, void *v) | |
777 | { | |
778 | seq_printf(m, "%lu\n", rtas_tone_volume); | |
779 | return 0; | |
780 | } | |
781 | ||
782 | #define RMO_READ_BUF_MAX 30 | |
783 | ||
784 | /* RTAS Userspace access */ | |
785 | static int ppc_rtas_rmo_buf_show(struct seq_file *m, void *v) | |
786 | { | |
787 | seq_printf(m, "%016lx %x\n", rtas_rmo_buf, RTAS_RMOBUF_MAX); | |
788 | return 0; | |
789 | } |