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1da177e4 LT |
1 | /* |
2 | * arch/ppc64/kernel/rtas-proc.c | |
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 LT |
27 | |
28 | #include <asm/uaccess.h> | |
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> | |
35 | #include <asm/systemcfg.h> | |
36 | ||
37 | /* Token for Sensors */ | |
38 | #define KEY_SWITCH 0x0001 | |
39 | #define ENCLOSURE_SWITCH 0x0002 | |
40 | #define THERMAL_SENSOR 0x0003 | |
41 | #define LID_STATUS 0x0004 | |
42 | #define POWER_SOURCE 0x0005 | |
43 | #define BATTERY_VOLTAGE 0x0006 | |
44 | #define BATTERY_REMAINING 0x0007 | |
45 | #define BATTERY_PERCENTAGE 0x0008 | |
46 | #define EPOW_SENSOR 0x0009 | |
47 | #define BATTERY_CYCLESTATE 0x000a | |
48 | #define BATTERY_CHARGING 0x000b | |
49 | ||
50 | /* IBM specific sensors */ | |
51 | #define IBM_SURVEILLANCE 0x2328 /* 9000 */ | |
52 | #define IBM_FANRPM 0x2329 /* 9001 */ | |
53 | #define IBM_VOLTAGE 0x232a /* 9002 */ | |
54 | #define IBM_DRCONNECTOR 0x232b /* 9003 */ | |
55 | #define IBM_POWERSUPPLY 0x232c /* 9004 */ | |
56 | ||
57 | /* Status return values */ | |
58 | #define SENSOR_CRITICAL_HIGH 13 | |
59 | #define SENSOR_WARNING_HIGH 12 | |
60 | #define SENSOR_NORMAL 11 | |
61 | #define SENSOR_WARNING_LOW 10 | |
62 | #define SENSOR_CRITICAL_LOW 9 | |
63 | #define SENSOR_SUCCESS 0 | |
64 | #define SENSOR_HW_ERROR -1 | |
65 | #define SENSOR_BUSY -2 | |
66 | #define SENSOR_NOT_EXIST -3 | |
67 | #define SENSOR_DR_ENTITY -9000 | |
68 | ||
69 | /* Location Codes */ | |
70 | #define LOC_SCSI_DEV_ADDR 'A' | |
71 | #define LOC_SCSI_DEV_LOC 'B' | |
72 | #define LOC_CPU 'C' | |
73 | #define LOC_DISKETTE 'D' | |
74 | #define LOC_ETHERNET 'E' | |
75 | #define LOC_FAN 'F' | |
76 | #define LOC_GRAPHICS 'G' | |
77 | /* reserved / not used 'H' */ | |
78 | #define LOC_IO_ADAPTER 'I' | |
79 | /* reserved / not used 'J' */ | |
80 | #define LOC_KEYBOARD 'K' | |
81 | #define LOC_LCD 'L' | |
82 | #define LOC_MEMORY 'M' | |
83 | #define LOC_NV_MEMORY 'N' | |
84 | #define LOC_MOUSE 'O' | |
85 | #define LOC_PLANAR 'P' | |
86 | #define LOC_OTHER_IO 'Q' | |
87 | #define LOC_PARALLEL 'R' | |
88 | #define LOC_SERIAL 'S' | |
89 | #define LOC_DEAD_RING 'T' | |
90 | #define LOC_RACKMOUNTED 'U' /* for _u_nit is rack mounted */ | |
91 | #define LOC_VOLTAGE 'V' | |
92 | #define LOC_SWITCH_ADAPTER 'W' | |
93 | #define LOC_OTHER 'X' | |
94 | #define LOC_FIRMWARE 'Y' | |
95 | #define LOC_SCSI 'Z' | |
96 | ||
97 | /* Tokens for indicators */ | |
98 | #define TONE_FREQUENCY 0x0001 /* 0 - 1000 (HZ)*/ | |
99 | #define TONE_VOLUME 0x0002 /* 0 - 100 (%) */ | |
100 | #define SYSTEM_POWER_STATE 0x0003 | |
101 | #define WARNING_LIGHT 0x0004 | |
102 | #define DISK_ACTIVITY_LIGHT 0x0005 | |
103 | #define HEX_DISPLAY_UNIT 0x0006 | |
104 | #define BATTERY_WARNING_TIME 0x0007 | |
105 | #define CONDITION_CYCLE_REQUEST 0x0008 | |
106 | #define SURVEILLANCE_INDICATOR 0x2328 /* 9000 */ | |
107 | #define DR_ACTION 0x2329 /* 9001 */ | |
108 | #define DR_INDICATOR 0x232a /* 9002 */ | |
109 | /* 9003 - 9004: Vendor specific */ | |
110 | /* 9006 - 9999: Vendor specific */ | |
111 | ||
112 | /* other */ | |
113 | #define MAX_SENSORS 17 /* I only know of 17 sensors */ | |
114 | #define MAX_LINELENGTH 256 | |
115 | #define SENSOR_PREFIX "ibm,sensor-" | |
116 | #define cel_to_fahr(x) ((x*9/5)+32) | |
117 | ||
118 | ||
119 | /* Globals */ | |
120 | static struct rtas_sensors sensors; | |
121 | static struct device_node *rtas_node = NULL; | |
122 | static unsigned long power_on_time = 0; /* Save the time the user set */ | |
123 | static char progress_led[MAX_LINELENGTH]; | |
124 | ||
125 | static unsigned long rtas_tone_frequency = 1000; | |
126 | static unsigned long rtas_tone_volume = 0; | |
127 | ||
128 | /* ****************STRUCTS******************************************* */ | |
129 | struct individual_sensor { | |
130 | unsigned int token; | |
131 | unsigned int quant; | |
132 | }; | |
133 | ||
134 | struct rtas_sensors { | |
135 | struct individual_sensor sensor[MAX_SENSORS]; | |
136 | unsigned int quant; | |
137 | }; | |
138 | ||
139 | /* ****************************************************************** */ | |
140 | /* Declarations */ | |
141 | static int ppc_rtas_sensors_show(struct seq_file *m, void *v); | |
142 | static int ppc_rtas_clock_show(struct seq_file *m, void *v); | |
143 | static ssize_t ppc_rtas_clock_write(struct file *file, | |
144 | const char __user *buf, size_t count, loff_t *ppos); | |
145 | static int ppc_rtas_progress_show(struct seq_file *m, void *v); | |
146 | static ssize_t ppc_rtas_progress_write(struct file *file, | |
147 | const char __user *buf, size_t count, loff_t *ppos); | |
148 | static int ppc_rtas_poweron_show(struct seq_file *m, void *v); | |
149 | static ssize_t ppc_rtas_poweron_write(struct file *file, | |
150 | const char __user *buf, size_t count, loff_t *ppos); | |
151 | ||
152 | static ssize_t ppc_rtas_tone_freq_write(struct file *file, | |
153 | const char __user *buf, size_t count, loff_t *ppos); | |
154 | static int ppc_rtas_tone_freq_show(struct seq_file *m, void *v); | |
155 | static ssize_t ppc_rtas_tone_volume_write(struct file *file, | |
156 | const char __user *buf, size_t count, loff_t *ppos); | |
157 | static int ppc_rtas_tone_volume_show(struct seq_file *m, void *v); | |
158 | static int ppc_rtas_rmo_buf_show(struct seq_file *m, void *v); | |
159 | ||
160 | static int sensors_open(struct inode *inode, struct file *file) | |
161 | { | |
162 | return single_open(file, ppc_rtas_sensors_show, NULL); | |
163 | } | |
164 | ||
165 | struct file_operations ppc_rtas_sensors_operations = { | |
166 | .open = sensors_open, | |
167 | .read = seq_read, | |
168 | .llseek = seq_lseek, | |
169 | .release = single_release, | |
170 | }; | |
171 | ||
172 | static int poweron_open(struct inode *inode, struct file *file) | |
173 | { | |
174 | return single_open(file, ppc_rtas_poweron_show, NULL); | |
175 | } | |
176 | ||
177 | struct file_operations ppc_rtas_poweron_operations = { | |
178 | .open = poweron_open, | |
179 | .read = seq_read, | |
180 | .llseek = seq_lseek, | |
181 | .write = ppc_rtas_poweron_write, | |
182 | .release = single_release, | |
183 | }; | |
184 | ||
185 | static int progress_open(struct inode *inode, struct file *file) | |
186 | { | |
187 | return single_open(file, ppc_rtas_progress_show, NULL); | |
188 | } | |
189 | ||
190 | struct file_operations ppc_rtas_progress_operations = { | |
191 | .open = progress_open, | |
192 | .read = seq_read, | |
193 | .llseek = seq_lseek, | |
194 | .write = ppc_rtas_progress_write, | |
195 | .release = single_release, | |
196 | }; | |
197 | ||
198 | static int clock_open(struct inode *inode, struct file *file) | |
199 | { | |
200 | return single_open(file, ppc_rtas_clock_show, NULL); | |
201 | } | |
202 | ||
203 | struct file_operations ppc_rtas_clock_operations = { | |
204 | .open = clock_open, | |
205 | .read = seq_read, | |
206 | .llseek = seq_lseek, | |
207 | .write = ppc_rtas_clock_write, | |
208 | .release = single_release, | |
209 | }; | |
210 | ||
211 | static int tone_freq_open(struct inode *inode, struct file *file) | |
212 | { | |
213 | return single_open(file, ppc_rtas_tone_freq_show, NULL); | |
214 | } | |
215 | ||
216 | struct file_operations ppc_rtas_tone_freq_operations = { | |
217 | .open = tone_freq_open, | |
218 | .read = seq_read, | |
219 | .llseek = seq_lseek, | |
220 | .write = ppc_rtas_tone_freq_write, | |
221 | .release = single_release, | |
222 | }; | |
223 | ||
224 | static int tone_volume_open(struct inode *inode, struct file *file) | |
225 | { | |
226 | return single_open(file, ppc_rtas_tone_volume_show, NULL); | |
227 | } | |
228 | ||
229 | struct file_operations ppc_rtas_tone_volume_operations = { | |
230 | .open = tone_volume_open, | |
231 | .read = seq_read, | |
232 | .llseek = seq_lseek, | |
233 | .write = ppc_rtas_tone_volume_write, | |
234 | .release = single_release, | |
235 | }; | |
236 | ||
237 | static int rmo_buf_open(struct inode *inode, struct file *file) | |
238 | { | |
239 | return single_open(file, ppc_rtas_rmo_buf_show, NULL); | |
240 | } | |
241 | ||
242 | struct file_operations ppc_rtas_rmo_buf_ops = { | |
243 | .open = rmo_buf_open, | |
244 | .read = seq_read, | |
245 | .llseek = seq_lseek, | |
246 | .release = single_release, | |
247 | }; | |
248 | ||
249 | static int ppc_rtas_find_all_sensors(void); | |
250 | static void ppc_rtas_process_sensor(struct seq_file *m, | |
251 | struct individual_sensor *s, int state, int error, char *loc); | |
252 | static char *ppc_rtas_process_error(int error); | |
253 | static void get_location_code(struct seq_file *m, | |
254 | struct individual_sensor *s, char *loc); | |
255 | static void check_location_string(struct seq_file *m, char *c); | |
256 | static void check_location(struct seq_file *m, char *c); | |
257 | ||
258 | static int __init proc_rtas_init(void) | |
259 | { | |
260 | struct proc_dir_entry *entry; | |
261 | ||
262 | if (!(systemcfg->platform & PLATFORM_PSERIES)) | |
263 | return 1; | |
264 | ||
265 | rtas_node = of_find_node_by_name(NULL, "rtas"); | |
266 | if (rtas_node == NULL) | |
267 | return 1; | |
268 | ||
269 | entry = create_proc_entry("ppc64/rtas/progress", S_IRUGO|S_IWUSR, NULL); | |
270 | if (entry) | |
271 | entry->proc_fops = &ppc_rtas_progress_operations; | |
272 | ||
273 | entry = create_proc_entry("ppc64/rtas/clock", S_IRUGO|S_IWUSR, NULL); | |
274 | if (entry) | |
275 | entry->proc_fops = &ppc_rtas_clock_operations; | |
276 | ||
277 | entry = create_proc_entry("ppc64/rtas/poweron", S_IWUSR|S_IRUGO, NULL); | |
278 | if (entry) | |
279 | entry->proc_fops = &ppc_rtas_poweron_operations; | |
280 | ||
281 | entry = create_proc_entry("ppc64/rtas/sensors", S_IRUGO, NULL); | |
282 | if (entry) | |
283 | entry->proc_fops = &ppc_rtas_sensors_operations; | |
284 | ||
285 | entry = create_proc_entry("ppc64/rtas/frequency", S_IWUSR|S_IRUGO, | |
286 | NULL); | |
287 | if (entry) | |
288 | entry->proc_fops = &ppc_rtas_tone_freq_operations; | |
289 | ||
290 | entry = create_proc_entry("ppc64/rtas/volume", S_IWUSR|S_IRUGO, NULL); | |
291 | if (entry) | |
292 | entry->proc_fops = &ppc_rtas_tone_volume_operations; | |
293 | ||
294 | entry = create_proc_entry("ppc64/rtas/rmo_buffer", S_IRUSR, NULL); | |
295 | if (entry) | |
296 | entry->proc_fops = &ppc_rtas_rmo_buf_ops; | |
297 | ||
298 | return 0; | |
299 | } | |
300 | ||
301 | __initcall(proc_rtas_init); | |
302 | ||
303 | static int parse_number(const char __user *p, size_t count, unsigned long *val) | |
304 | { | |
305 | char buf[40]; | |
306 | char *end; | |
307 | ||
308 | if (count > 39) | |
309 | return -EINVAL; | |
310 | ||
311 | if (copy_from_user(buf, p, count)) | |
312 | return -EFAULT; | |
313 | ||
314 | buf[count] = 0; | |
315 | ||
316 | *val = simple_strtoul(buf, &end, 10); | |
317 | if (*end && *end != '\n') | |
318 | return -EINVAL; | |
319 | ||
320 | return 0; | |
321 | } | |
322 | ||
323 | /* ****************************************************************** */ | |
324 | /* POWER-ON-TIME */ | |
325 | /* ****************************************************************** */ | |
326 | static ssize_t ppc_rtas_poweron_write(struct file *file, | |
327 | const char __user *buf, size_t count, loff_t *ppos) | |
328 | { | |
329 | struct rtc_time tm; | |
330 | unsigned long nowtime; | |
331 | int error = parse_number(buf, count, &nowtime); | |
332 | if (error) | |
333 | return error; | |
334 | ||
335 | power_on_time = nowtime; /* save the time */ | |
336 | ||
337 | to_tm(nowtime, &tm); | |
338 | ||
339 | error = rtas_call(rtas_token("set-time-for-power-on"), 7, 1, NULL, | |
340 | tm.tm_year, tm.tm_mon, tm.tm_mday, | |
341 | tm.tm_hour, tm.tm_min, tm.tm_sec, 0 /* nano */); | |
342 | if (error) | |
343 | printk(KERN_WARNING "error: setting poweron time returned: %s\n", | |
344 | ppc_rtas_process_error(error)); | |
345 | return count; | |
346 | } | |
347 | /* ****************************************************************** */ | |
348 | static int ppc_rtas_poweron_show(struct seq_file *m, void *v) | |
349 | { | |
350 | if (power_on_time == 0) | |
351 | seq_printf(m, "Power on time not set\n"); | |
352 | else | |
353 | seq_printf(m, "%lu\n",power_on_time); | |
354 | return 0; | |
355 | } | |
356 | ||
357 | /* ****************************************************************** */ | |
358 | /* PROGRESS */ | |
359 | /* ****************************************************************** */ | |
360 | static ssize_t ppc_rtas_progress_write(struct file *file, | |
361 | const char __user *buf, size_t count, loff_t *ppos) | |
362 | { | |
363 | unsigned long hex; | |
364 | ||
365 | if (count >= MAX_LINELENGTH) | |
366 | count = MAX_LINELENGTH -1; | |
367 | if (copy_from_user(progress_led, buf, count)) { /* save the string */ | |
368 | return -EFAULT; | |
369 | } | |
370 | progress_led[count] = 0; | |
371 | ||
372 | /* Lets see if the user passed hexdigits */ | |
373 | hex = simple_strtoul(progress_led, NULL, 10); | |
374 | ||
6566c6f1 | 375 | rtas_progress ((char *)progress_led, hex); |
1da177e4 LT |
376 | return count; |
377 | ||
378 | /* clear the line */ | |
6566c6f1 | 379 | /* rtas_progress(" ", 0xffff);*/ |
1da177e4 LT |
380 | } |
381 | /* ****************************************************************** */ | |
382 | static int ppc_rtas_progress_show(struct seq_file *m, void *v) | |
383 | { | |
384 | if (progress_led) | |
385 | seq_printf(m, "%s\n", progress_led); | |
386 | return 0; | |
387 | } | |
388 | ||
389 | /* ****************************************************************** */ | |
390 | /* CLOCK */ | |
391 | /* ****************************************************************** */ | |
392 | static ssize_t ppc_rtas_clock_write(struct file *file, | |
393 | const char __user *buf, size_t count, loff_t *ppos) | |
394 | { | |
395 | struct rtc_time tm; | |
396 | unsigned long nowtime; | |
397 | int error = parse_number(buf, count, &nowtime); | |
398 | if (error) | |
399 | return error; | |
400 | ||
401 | to_tm(nowtime, &tm); | |
402 | error = rtas_call(rtas_token("set-time-of-day"), 7, 1, NULL, | |
403 | tm.tm_year, tm.tm_mon, tm.tm_mday, | |
404 | tm.tm_hour, tm.tm_min, tm.tm_sec, 0); | |
405 | if (error) | |
406 | printk(KERN_WARNING "error: setting the clock returned: %s\n", | |
407 | ppc_rtas_process_error(error)); | |
408 | return count; | |
409 | } | |
410 | /* ****************************************************************** */ | |
411 | static int ppc_rtas_clock_show(struct seq_file *m, void *v) | |
412 | { | |
413 | int ret[8]; | |
414 | int error = rtas_call(rtas_token("get-time-of-day"), 0, 8, ret); | |
415 | ||
416 | if (error) { | |
417 | printk(KERN_WARNING "error: reading the clock returned: %s\n", | |
418 | ppc_rtas_process_error(error)); | |
419 | seq_printf(m, "0"); | |
420 | } else { | |
421 | unsigned int year, mon, day, hour, min, sec; | |
422 | year = ret[0]; mon = ret[1]; day = ret[2]; | |
423 | hour = ret[3]; min = ret[4]; sec = ret[5]; | |
424 | seq_printf(m, "%lu\n", | |
425 | mktime(year, mon, day, hour, min, sec)); | |
426 | } | |
427 | return 0; | |
428 | } | |
429 | ||
430 | /* ****************************************************************** */ | |
431 | /* SENSOR STUFF */ | |
432 | /* ****************************************************************** */ | |
433 | static int ppc_rtas_sensors_show(struct seq_file *m, void *v) | |
434 | { | |
435 | int i,j; | |
436 | int state, error; | |
437 | int get_sensor_state = rtas_token("get-sensor-state"); | |
438 | ||
439 | seq_printf(m, "RTAS (RunTime Abstraction Services) Sensor Information\n"); | |
440 | seq_printf(m, "Sensor\t\tValue\t\tCondition\tLocation\n"); | |
441 | seq_printf(m, "********************************************************\n"); | |
442 | ||
443 | if (ppc_rtas_find_all_sensors() != 0) { | |
444 | seq_printf(m, "\nNo sensors are available\n"); | |
445 | return 0; | |
446 | } | |
447 | ||
448 | for (i=0; i<sensors.quant; i++) { | |
449 | struct individual_sensor *p = &sensors.sensor[i]; | |
450 | char rstr[64]; | |
451 | char *loc; | |
452 | int llen, offs; | |
453 | ||
454 | sprintf (rstr, SENSOR_PREFIX"%04d", p->token); | |
455 | loc = (char *) get_property(rtas_node, rstr, &llen); | |
456 | ||
457 | /* A sensor may have multiple instances */ | |
458 | for (j = 0, offs = 0; j <= p->quant; j++) { | |
459 | error = rtas_call(get_sensor_state, 2, 2, &state, | |
460 | p->token, j); | |
461 | ||
462 | ppc_rtas_process_sensor(m, p, state, error, loc); | |
463 | seq_putc(m, '\n'); | |
464 | if (loc) { | |
465 | offs += strlen(loc) + 1; | |
466 | loc += strlen(loc) + 1; | |
467 | if (offs >= llen) | |
468 | loc = NULL; | |
469 | } | |
470 | } | |
471 | } | |
472 | return 0; | |
473 | } | |
474 | ||
475 | /* ****************************************************************** */ | |
476 | ||
477 | static int ppc_rtas_find_all_sensors(void) | |
478 | { | |
479 | unsigned int *utmp; | |
480 | int len, i; | |
481 | ||
482 | utmp = (unsigned int *) get_property(rtas_node, "rtas-sensors", &len); | |
483 | if (utmp == NULL) { | |
484 | printk (KERN_ERR "error: could not get rtas-sensors\n"); | |
485 | return 1; | |
486 | } | |
487 | ||
488 | sensors.quant = len / 8; /* int + int */ | |
489 | ||
490 | for (i=0; i<sensors.quant; i++) { | |
491 | sensors.sensor[i].token = *utmp++; | |
492 | sensors.sensor[i].quant = *utmp++; | |
493 | } | |
494 | return 0; | |
495 | } | |
496 | ||
497 | /* ****************************************************************** */ | |
498 | /* | |
499 | * Builds a string of what rtas returned | |
500 | */ | |
501 | static char *ppc_rtas_process_error(int error) | |
502 | { | |
503 | switch (error) { | |
504 | case SENSOR_CRITICAL_HIGH: | |
505 | return "(critical high)"; | |
506 | case SENSOR_WARNING_HIGH: | |
507 | return "(warning high)"; | |
508 | case SENSOR_NORMAL: | |
509 | return "(normal)"; | |
510 | case SENSOR_WARNING_LOW: | |
511 | return "(warning low)"; | |
512 | case SENSOR_CRITICAL_LOW: | |
513 | return "(critical low)"; | |
514 | case SENSOR_SUCCESS: | |
515 | return "(read ok)"; | |
516 | case SENSOR_HW_ERROR: | |
517 | return "(hardware error)"; | |
518 | case SENSOR_BUSY: | |
519 | return "(busy)"; | |
520 | case SENSOR_NOT_EXIST: | |
521 | return "(non existent)"; | |
522 | case SENSOR_DR_ENTITY: | |
523 | return "(dr entity removed)"; | |
524 | default: | |
525 | return "(UNKNOWN)"; | |
526 | } | |
527 | } | |
528 | ||
529 | /* ****************************************************************** */ | |
530 | /* | |
531 | * Builds a string out of what the sensor said | |
532 | */ | |
533 | ||
534 | static void ppc_rtas_process_sensor(struct seq_file *m, | |
535 | struct individual_sensor *s, int state, int error, char *loc) | |
536 | { | |
537 | /* Defined return vales */ | |
538 | const char * key_switch[] = { "Off\t", "Normal\t", "Secure\t", | |
539 | "Maintenance" }; | |
540 | const char * enclosure_switch[] = { "Closed", "Open" }; | |
541 | const char * lid_status[] = { " ", "Open", "Closed" }; | |
542 | const char * power_source[] = { "AC\t", "Battery", | |
543 | "AC & Battery" }; | |
544 | const char * battery_remaining[] = { "Very Low", "Low", "Mid", "High" }; | |
545 | const char * epow_sensor[] = { | |
546 | "EPOW Reset", "Cooling warning", "Power warning", | |
547 | "System shutdown", "System halt", "EPOW main enclosure", | |
548 | "EPOW power off" }; | |
549 | const char * battery_cyclestate[] = { "None", "In progress", | |
550 | "Requested" }; | |
551 | const char * battery_charging[] = { "Charging", "Discharching", | |
552 | "No current flow" }; | |
553 | const char * ibm_drconnector[] = { "Empty", "Present", "Unusable", | |
554 | "Exchange" }; | |
555 | ||
556 | int have_strings = 0; | |
557 | int num_states = 0; | |
558 | int temperature = 0; | |
559 | int unknown = 0; | |
560 | ||
561 | /* What kind of sensor do we have here? */ | |
562 | ||
563 | switch (s->token) { | |
564 | case KEY_SWITCH: | |
565 | seq_printf(m, "Key switch:\t"); | |
566 | num_states = sizeof(key_switch) / sizeof(char *); | |
567 | if (state < num_states) { | |
568 | seq_printf(m, "%s\t", key_switch[state]); | |
569 | have_strings = 1; | |
570 | } | |
571 | break; | |
572 | case ENCLOSURE_SWITCH: | |
573 | seq_printf(m, "Enclosure switch:\t"); | |
574 | num_states = sizeof(enclosure_switch) / sizeof(char *); | |
575 | if (state < num_states) { | |
576 | seq_printf(m, "%s\t", | |
577 | enclosure_switch[state]); | |
578 | have_strings = 1; | |
579 | } | |
580 | break; | |
581 | case THERMAL_SENSOR: | |
582 | seq_printf(m, "Temp. (C/F):\t"); | |
583 | temperature = 1; | |
584 | break; | |
585 | case LID_STATUS: | |
586 | seq_printf(m, "Lid status:\t"); | |
587 | num_states = sizeof(lid_status) / sizeof(char *); | |
588 | if (state < num_states) { | |
589 | seq_printf(m, "%s\t", lid_status[state]); | |
590 | have_strings = 1; | |
591 | } | |
592 | break; | |
593 | case POWER_SOURCE: | |
594 | seq_printf(m, "Power source:\t"); | |
595 | num_states = sizeof(power_source) / sizeof(char *); | |
596 | if (state < num_states) { | |
597 | seq_printf(m, "%s\t", | |
598 | power_source[state]); | |
599 | have_strings = 1; | |
600 | } | |
601 | break; | |
602 | case BATTERY_VOLTAGE: | |
603 | seq_printf(m, "Battery voltage:\t"); | |
604 | break; | |
605 | case BATTERY_REMAINING: | |
606 | seq_printf(m, "Battery remaining:\t"); | |
607 | num_states = sizeof(battery_remaining) / sizeof(char *); | |
608 | if (state < num_states) | |
609 | { | |
610 | seq_printf(m, "%s\t", | |
611 | battery_remaining[state]); | |
612 | have_strings = 1; | |
613 | } | |
614 | break; | |
615 | case BATTERY_PERCENTAGE: | |
616 | seq_printf(m, "Battery percentage:\t"); | |
617 | break; | |
618 | case EPOW_SENSOR: | |
619 | seq_printf(m, "EPOW Sensor:\t"); | |
620 | num_states = sizeof(epow_sensor) / sizeof(char *); | |
621 | if (state < num_states) { | |
622 | seq_printf(m, "%s\t", epow_sensor[state]); | |
623 | have_strings = 1; | |
624 | } | |
625 | break; | |
626 | case BATTERY_CYCLESTATE: | |
627 | seq_printf(m, "Battery cyclestate:\t"); | |
628 | num_states = sizeof(battery_cyclestate) / | |
629 | sizeof(char *); | |
630 | if (state < num_states) { | |
631 | seq_printf(m, "%s\t", | |
632 | battery_cyclestate[state]); | |
633 | have_strings = 1; | |
634 | } | |
635 | break; | |
636 | case BATTERY_CHARGING: | |
637 | seq_printf(m, "Battery Charging:\t"); | |
638 | num_states = sizeof(battery_charging) / sizeof(char *); | |
639 | if (state < num_states) { | |
640 | seq_printf(m, "%s\t", | |
641 | battery_charging[state]); | |
642 | have_strings = 1; | |
643 | } | |
644 | break; | |
645 | case IBM_SURVEILLANCE: | |
646 | seq_printf(m, "Surveillance:\t"); | |
647 | break; | |
648 | case IBM_FANRPM: | |
649 | seq_printf(m, "Fan (rpm):\t"); | |
650 | break; | |
651 | case IBM_VOLTAGE: | |
652 | seq_printf(m, "Voltage (mv):\t"); | |
653 | break; | |
654 | case IBM_DRCONNECTOR: | |
655 | seq_printf(m, "DR connector:\t"); | |
656 | num_states = sizeof(ibm_drconnector) / sizeof(char *); | |
657 | if (state < num_states) { | |
658 | seq_printf(m, "%s\t", | |
659 | ibm_drconnector[state]); | |
660 | have_strings = 1; | |
661 | } | |
662 | break; | |
663 | case IBM_POWERSUPPLY: | |
664 | seq_printf(m, "Powersupply:\t"); | |
665 | break; | |
666 | default: | |
667 | seq_printf(m, "Unknown sensor (type %d), ignoring it\n", | |
668 | s->token); | |
669 | unknown = 1; | |
670 | have_strings = 1; | |
671 | break; | |
672 | } | |
673 | if (have_strings == 0) { | |
674 | if (temperature) { | |
675 | seq_printf(m, "%4d /%4d\t", state, cel_to_fahr(state)); | |
676 | } else | |
677 | seq_printf(m, "%10d\t", state); | |
678 | } | |
679 | if (unknown == 0) { | |
680 | seq_printf(m, "%s\t", ppc_rtas_process_error(error)); | |
681 | get_location_code(m, s, loc); | |
682 | } | |
683 | } | |
684 | ||
685 | /* ****************************************************************** */ | |
686 | ||
687 | static void check_location(struct seq_file *m, char *c) | |
688 | { | |
689 | switch (c[0]) { | |
690 | case LOC_PLANAR: | |
691 | seq_printf(m, "Planar #%c", c[1]); | |
692 | break; | |
693 | case LOC_CPU: | |
694 | seq_printf(m, "CPU #%c", c[1]); | |
695 | break; | |
696 | case LOC_FAN: | |
697 | seq_printf(m, "Fan #%c", c[1]); | |
698 | break; | |
699 | case LOC_RACKMOUNTED: | |
700 | seq_printf(m, "Rack #%c", c[1]); | |
701 | break; | |
702 | case LOC_VOLTAGE: | |
703 | seq_printf(m, "Voltage #%c", c[1]); | |
704 | break; | |
705 | case LOC_LCD: | |
706 | seq_printf(m, "LCD #%c", c[1]); | |
707 | break; | |
708 | case '.': | |
709 | seq_printf(m, "- %c", c[1]); | |
710 | break; | |
711 | default: | |
712 | seq_printf(m, "Unknown location"); | |
713 | break; | |
714 | } | |
715 | } | |
716 | ||
717 | ||
718 | /* ****************************************************************** */ | |
719 | /* | |
720 | * Format: | |
721 | * ${LETTER}${NUMBER}[[-/]${LETTER}${NUMBER} [ ... ] ] | |
722 | * the '.' may be an abbrevation | |
723 | */ | |
724 | static void check_location_string(struct seq_file *m, char *c) | |
725 | { | |
726 | while (*c) { | |
727 | if (isalpha(*c) || *c == '.') | |
728 | check_location(m, c); | |
729 | else if (*c == '/' || *c == '-') | |
730 | seq_printf(m, " at "); | |
731 | c++; | |
732 | } | |
733 | } | |
734 | ||
735 | ||
736 | /* ****************************************************************** */ | |
737 | ||
738 | static void get_location_code(struct seq_file *m, struct individual_sensor *s, char *loc) | |
739 | { | |
740 | if (!loc || !*loc) { | |
741 | seq_printf(m, "---");/* does not have a location */ | |
742 | } else { | |
743 | check_location_string(m, loc); | |
744 | } | |
745 | seq_putc(m, ' '); | |
746 | } | |
747 | /* ****************************************************************** */ | |
748 | /* INDICATORS - Tone Frequency */ | |
749 | /* ****************************************************************** */ | |
750 | static ssize_t ppc_rtas_tone_freq_write(struct file *file, | |
751 | const char __user *buf, size_t count, loff_t *ppos) | |
752 | { | |
753 | unsigned long freq; | |
754 | int error = parse_number(buf, count, &freq); | |
755 | if (error) | |
756 | return error; | |
757 | ||
758 | rtas_tone_frequency = freq; /* save it for later */ | |
759 | error = rtas_call(rtas_token("set-indicator"), 3, 1, NULL, | |
760 | TONE_FREQUENCY, 0, freq); | |
761 | if (error) | |
762 | printk(KERN_WARNING "error: setting tone frequency returned: %s\n", | |
763 | ppc_rtas_process_error(error)); | |
764 | return count; | |
765 | } | |
766 | /* ****************************************************************** */ | |
767 | static int ppc_rtas_tone_freq_show(struct seq_file *m, void *v) | |
768 | { | |
769 | seq_printf(m, "%lu\n", rtas_tone_frequency); | |
770 | return 0; | |
771 | } | |
772 | /* ****************************************************************** */ | |
773 | /* INDICATORS - Tone Volume */ | |
774 | /* ****************************************************************** */ | |
775 | static ssize_t ppc_rtas_tone_volume_write(struct file *file, | |
776 | const char __user *buf, size_t count, loff_t *ppos) | |
777 | { | |
778 | unsigned long volume; | |
779 | int error = parse_number(buf, count, &volume); | |
780 | if (error) | |
781 | return error; | |
782 | ||
783 | if (volume > 100) | |
784 | volume = 100; | |
785 | ||
786 | rtas_tone_volume = volume; /* save it for later */ | |
787 | error = rtas_call(rtas_token("set-indicator"), 3, 1, NULL, | |
788 | TONE_VOLUME, 0, volume); | |
789 | if (error) | |
790 | printk(KERN_WARNING "error: setting tone volume returned: %s\n", | |
791 | ppc_rtas_process_error(error)); | |
792 | return count; | |
793 | } | |
794 | /* ****************************************************************** */ | |
795 | static int ppc_rtas_tone_volume_show(struct seq_file *m, void *v) | |
796 | { | |
797 | seq_printf(m, "%lu\n", rtas_tone_volume); | |
798 | return 0; | |
799 | } | |
800 | ||
801 | #define RMO_READ_BUF_MAX 30 | |
802 | ||
803 | /* RTAS Userspace access */ | |
804 | static int ppc_rtas_rmo_buf_show(struct seq_file *m, void *v) | |
805 | { | |
806 | seq_printf(m, "%016lx %x\n", rtas_rmo_buf, RTAS_RMOBUF_MAX); | |
807 | return 0; | |
808 | } |