Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2 | * Copyright (C) 2000 Tilmann Bitterberg |
| 3 | * (tilmann@bitterberg.de) |
| 4 | * |
| 5 | * RTAS (Runtime Abstraction Services) stuff |
| 6 | * Intention is to provide a clean user interface |
| 7 | * to use the RTAS. |
| 8 | * |
| 9 | * TODO: |
| 10 | * Split off a header file and maybe move it to a different |
| 11 | * location. Write Documentation on what the /proc/rtas/ entries |
| 12 | * actually do. |
| 13 | */ |
| 14 | |
| 15 | #include <linux/errno.h> |
| 16 | #include <linux/sched.h> |
| 17 | #include <linux/proc_fs.h> |
| 18 | #include <linux/stat.h> |
| 19 | #include <linux/ctype.h> |
| 20 | #include <linux/time.h> |
| 21 | #include <linux/string.h> |
| 22 | #include <linux/init.h> |
| 23 | #include <linux/seq_file.h> |
| 24 | #include <linux/bitops.h> |
Paul Mackerras | 143a1de | 2005-10-19 23:11:21 +1000 | [diff] [blame] | 25 | #include <linux/rtc.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 26 | |
| 27 | #include <asm/uaccess.h> |
| 28 | #include <asm/processor.h> |
| 29 | #include <asm/io.h> |
| 30 | #include <asm/prom.h> |
| 31 | #include <asm/rtas.h> |
| 32 | #include <asm/machdep.h> /* for ppc_md */ |
| 33 | #include <asm/time.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 34 | |
| 35 | /* Token for Sensors */ |
| 36 | #define KEY_SWITCH 0x0001 |
| 37 | #define ENCLOSURE_SWITCH 0x0002 |
| 38 | #define THERMAL_SENSOR 0x0003 |
| 39 | #define LID_STATUS 0x0004 |
| 40 | #define POWER_SOURCE 0x0005 |
| 41 | #define BATTERY_VOLTAGE 0x0006 |
| 42 | #define BATTERY_REMAINING 0x0007 |
| 43 | #define BATTERY_PERCENTAGE 0x0008 |
| 44 | #define EPOW_SENSOR 0x0009 |
| 45 | #define BATTERY_CYCLESTATE 0x000a |
| 46 | #define BATTERY_CHARGING 0x000b |
| 47 | |
| 48 | /* IBM specific sensors */ |
| 49 | #define IBM_SURVEILLANCE 0x2328 /* 9000 */ |
| 50 | #define IBM_FANRPM 0x2329 /* 9001 */ |
| 51 | #define IBM_VOLTAGE 0x232a /* 9002 */ |
| 52 | #define IBM_DRCONNECTOR 0x232b /* 9003 */ |
| 53 | #define IBM_POWERSUPPLY 0x232c /* 9004 */ |
| 54 | |
| 55 | /* Status return values */ |
| 56 | #define SENSOR_CRITICAL_HIGH 13 |
| 57 | #define SENSOR_WARNING_HIGH 12 |
| 58 | #define SENSOR_NORMAL 11 |
| 59 | #define SENSOR_WARNING_LOW 10 |
| 60 | #define SENSOR_CRITICAL_LOW 9 |
| 61 | #define SENSOR_SUCCESS 0 |
| 62 | #define SENSOR_HW_ERROR -1 |
| 63 | #define SENSOR_BUSY -2 |
| 64 | #define SENSOR_NOT_EXIST -3 |
| 65 | #define SENSOR_DR_ENTITY -9000 |
| 66 | |
| 67 | /* Location Codes */ |
| 68 | #define LOC_SCSI_DEV_ADDR 'A' |
| 69 | #define LOC_SCSI_DEV_LOC 'B' |
| 70 | #define LOC_CPU 'C' |
| 71 | #define LOC_DISKETTE 'D' |
| 72 | #define LOC_ETHERNET 'E' |
| 73 | #define LOC_FAN 'F' |
| 74 | #define LOC_GRAPHICS 'G' |
| 75 | /* reserved / not used 'H' */ |
| 76 | #define LOC_IO_ADAPTER 'I' |
| 77 | /* reserved / not used 'J' */ |
| 78 | #define LOC_KEYBOARD 'K' |
| 79 | #define LOC_LCD 'L' |
| 80 | #define LOC_MEMORY 'M' |
| 81 | #define LOC_NV_MEMORY 'N' |
| 82 | #define LOC_MOUSE 'O' |
| 83 | #define LOC_PLANAR 'P' |
| 84 | #define LOC_OTHER_IO 'Q' |
| 85 | #define LOC_PARALLEL 'R' |
| 86 | #define LOC_SERIAL 'S' |
| 87 | #define LOC_DEAD_RING 'T' |
| 88 | #define LOC_RACKMOUNTED 'U' /* for _u_nit is rack mounted */ |
| 89 | #define LOC_VOLTAGE 'V' |
| 90 | #define LOC_SWITCH_ADAPTER 'W' |
| 91 | #define LOC_OTHER 'X' |
| 92 | #define LOC_FIRMWARE 'Y' |
| 93 | #define LOC_SCSI 'Z' |
| 94 | |
| 95 | /* Tokens for indicators */ |
| 96 | #define TONE_FREQUENCY 0x0001 /* 0 - 1000 (HZ)*/ |
| 97 | #define TONE_VOLUME 0x0002 /* 0 - 100 (%) */ |
| 98 | #define SYSTEM_POWER_STATE 0x0003 |
| 99 | #define WARNING_LIGHT 0x0004 |
| 100 | #define DISK_ACTIVITY_LIGHT 0x0005 |
| 101 | #define HEX_DISPLAY_UNIT 0x0006 |
| 102 | #define BATTERY_WARNING_TIME 0x0007 |
| 103 | #define CONDITION_CYCLE_REQUEST 0x0008 |
| 104 | #define SURVEILLANCE_INDICATOR 0x2328 /* 9000 */ |
| 105 | #define DR_ACTION 0x2329 /* 9001 */ |
| 106 | #define DR_INDICATOR 0x232a /* 9002 */ |
| 107 | /* 9003 - 9004: Vendor specific */ |
| 108 | /* 9006 - 9999: Vendor specific */ |
| 109 | |
| 110 | /* other */ |
| 111 | #define MAX_SENSORS 17 /* I only know of 17 sensors */ |
| 112 | #define MAX_LINELENGTH 256 |
| 113 | #define SENSOR_PREFIX "ibm,sensor-" |
| 114 | #define cel_to_fahr(x) ((x*9/5)+32) |
| 115 | |
| 116 | |
| 117 | /* Globals */ |
| 118 | static struct rtas_sensors sensors; |
| 119 | static struct device_node *rtas_node = NULL; |
| 120 | static unsigned long power_on_time = 0; /* Save the time the user set */ |
| 121 | static char progress_led[MAX_LINELENGTH]; |
| 122 | |
| 123 | static unsigned long rtas_tone_frequency = 1000; |
| 124 | static unsigned long rtas_tone_volume = 0; |
| 125 | |
| 126 | /* ****************STRUCTS******************************************* */ |
| 127 | struct individual_sensor { |
| 128 | unsigned int token; |
| 129 | unsigned int quant; |
| 130 | }; |
| 131 | |
| 132 | struct rtas_sensors { |
| 133 | struct individual_sensor sensor[MAX_SENSORS]; |
| 134 | unsigned int quant; |
| 135 | }; |
| 136 | |
| 137 | /* ****************************************************************** */ |
| 138 | /* Declarations */ |
| 139 | static int ppc_rtas_sensors_show(struct seq_file *m, void *v); |
| 140 | static int ppc_rtas_clock_show(struct seq_file *m, void *v); |
| 141 | static ssize_t ppc_rtas_clock_write(struct file *file, |
| 142 | const char __user *buf, size_t count, loff_t *ppos); |
| 143 | static int ppc_rtas_progress_show(struct seq_file *m, void *v); |
| 144 | static ssize_t ppc_rtas_progress_write(struct file *file, |
| 145 | const char __user *buf, size_t count, loff_t *ppos); |
| 146 | static int ppc_rtas_poweron_show(struct seq_file *m, void *v); |
| 147 | static ssize_t ppc_rtas_poweron_write(struct file *file, |
| 148 | const char __user *buf, size_t count, loff_t *ppos); |
| 149 | |
| 150 | static ssize_t ppc_rtas_tone_freq_write(struct file *file, |
| 151 | const char __user *buf, size_t count, loff_t *ppos); |
| 152 | static int ppc_rtas_tone_freq_show(struct seq_file *m, void *v); |
| 153 | static ssize_t ppc_rtas_tone_volume_write(struct file *file, |
| 154 | const char __user *buf, size_t count, loff_t *ppos); |
| 155 | static int ppc_rtas_tone_volume_show(struct seq_file *m, void *v); |
| 156 | static int ppc_rtas_rmo_buf_show(struct seq_file *m, void *v); |
| 157 | |
| 158 | static int sensors_open(struct inode *inode, struct file *file) |
| 159 | { |
| 160 | return single_open(file, ppc_rtas_sensors_show, NULL); |
| 161 | } |
| 162 | |
Michael Ellerman | 1c21a29 | 2008-05-08 14:27:19 +1000 | [diff] [blame] | 163 | static const struct file_operations ppc_rtas_sensors_operations = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 164 | .open = sensors_open, |
| 165 | .read = seq_read, |
| 166 | .llseek = seq_lseek, |
| 167 | .release = single_release, |
| 168 | }; |
| 169 | |
| 170 | static int poweron_open(struct inode *inode, struct file *file) |
| 171 | { |
| 172 | return single_open(file, ppc_rtas_poweron_show, NULL); |
| 173 | } |
| 174 | |
Michael Ellerman | 1c21a29 | 2008-05-08 14:27:19 +1000 | [diff] [blame] | 175 | static const struct file_operations ppc_rtas_poweron_operations = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 176 | .open = poweron_open, |
| 177 | .read = seq_read, |
| 178 | .llseek = seq_lseek, |
| 179 | .write = ppc_rtas_poweron_write, |
| 180 | .release = single_release, |
| 181 | }; |
| 182 | |
| 183 | static int progress_open(struct inode *inode, struct file *file) |
| 184 | { |
| 185 | return single_open(file, ppc_rtas_progress_show, NULL); |
| 186 | } |
| 187 | |
Michael Ellerman | 1c21a29 | 2008-05-08 14:27:19 +1000 | [diff] [blame] | 188 | static const struct file_operations ppc_rtas_progress_operations = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 189 | .open = progress_open, |
| 190 | .read = seq_read, |
| 191 | .llseek = seq_lseek, |
| 192 | .write = ppc_rtas_progress_write, |
| 193 | .release = single_release, |
| 194 | }; |
| 195 | |
| 196 | static int clock_open(struct inode *inode, struct file *file) |
| 197 | { |
| 198 | return single_open(file, ppc_rtas_clock_show, NULL); |
| 199 | } |
| 200 | |
Michael Ellerman | 1c21a29 | 2008-05-08 14:27:19 +1000 | [diff] [blame] | 201 | static const struct file_operations ppc_rtas_clock_operations = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 202 | .open = clock_open, |
| 203 | .read = seq_read, |
| 204 | .llseek = seq_lseek, |
| 205 | .write = ppc_rtas_clock_write, |
| 206 | .release = single_release, |
| 207 | }; |
| 208 | |
| 209 | static int tone_freq_open(struct inode *inode, struct file *file) |
| 210 | { |
| 211 | return single_open(file, ppc_rtas_tone_freq_show, NULL); |
| 212 | } |
| 213 | |
Michael Ellerman | 1c21a29 | 2008-05-08 14:27:19 +1000 | [diff] [blame] | 214 | static const struct file_operations ppc_rtas_tone_freq_operations = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 215 | .open = tone_freq_open, |
| 216 | .read = seq_read, |
| 217 | .llseek = seq_lseek, |
| 218 | .write = ppc_rtas_tone_freq_write, |
| 219 | .release = single_release, |
| 220 | }; |
| 221 | |
| 222 | static int tone_volume_open(struct inode *inode, struct file *file) |
| 223 | { |
| 224 | return single_open(file, ppc_rtas_tone_volume_show, NULL); |
| 225 | } |
| 226 | |
Michael Ellerman | 1c21a29 | 2008-05-08 14:27:19 +1000 | [diff] [blame] | 227 | static const struct file_operations ppc_rtas_tone_volume_operations = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 228 | .open = tone_volume_open, |
| 229 | .read = seq_read, |
| 230 | .llseek = seq_lseek, |
| 231 | .write = ppc_rtas_tone_volume_write, |
| 232 | .release = single_release, |
| 233 | }; |
| 234 | |
| 235 | static int rmo_buf_open(struct inode *inode, struct file *file) |
| 236 | { |
| 237 | return single_open(file, ppc_rtas_rmo_buf_show, NULL); |
| 238 | } |
| 239 | |
Michael Ellerman | 1c21a29 | 2008-05-08 14:27:19 +1000 | [diff] [blame] | 240 | static const struct file_operations ppc_rtas_rmo_buf_ops = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 241 | .open = rmo_buf_open, |
| 242 | .read = seq_read, |
| 243 | .llseek = seq_lseek, |
| 244 | .release = single_release, |
| 245 | }; |
| 246 | |
| 247 | static int ppc_rtas_find_all_sensors(void); |
| 248 | static void ppc_rtas_process_sensor(struct seq_file *m, |
Jeremy Kerr | a7f67bd | 2006-07-12 15:35:54 +1000 | [diff] [blame] | 249 | struct individual_sensor *s, int state, int error, const char *loc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 250 | static char *ppc_rtas_process_error(int error); |
| 251 | static void get_location_code(struct seq_file *m, |
Jeremy Kerr | a7f67bd | 2006-07-12 15:35:54 +1000 | [diff] [blame] | 252 | struct individual_sensor *s, const char *loc); |
| 253 | static void check_location_string(struct seq_file *m, const char *c); |
| 254 | static void check_location(struct seq_file *m, const char *c); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 255 | |
| 256 | static int __init proc_rtas_init(void) |
| 257 | { |
Benjamin Herrenschmidt | e822250 | 2006-03-28 23:15:54 +1100 | [diff] [blame] | 258 | if (!machine_is(pseries)) |
Anton Blanchard | 49c28e4 | 2006-04-02 20:18:32 +1000 | [diff] [blame] | 259 | return -ENODEV; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 260 | |
| 261 | rtas_node = of_find_node_by_name(NULL, "rtas"); |
| 262 | if (rtas_node == NULL) |
Anton Blanchard | 49c28e4 | 2006-04-02 20:18:32 +1000 | [diff] [blame] | 263 | return -ENODEV; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 264 | |
Nathan Fontenot | 9becd2a | 2010-01-14 09:45:58 +0000 | [diff] [blame] | 265 | proc_create("powerpc/rtas/progress", S_IRUGO|S_IWUSR, NULL, |
Denis V. Lunev | 6674713 | 2008-04-29 01:02:26 -0700 | [diff] [blame] | 266 | &ppc_rtas_progress_operations); |
Nathan Fontenot | 9becd2a | 2010-01-14 09:45:58 +0000 | [diff] [blame] | 267 | proc_create("powerpc/rtas/clock", S_IRUGO|S_IWUSR, NULL, |
Denis V. Lunev | 6674713 | 2008-04-29 01:02:26 -0700 | [diff] [blame] | 268 | &ppc_rtas_clock_operations); |
Nathan Fontenot | 9becd2a | 2010-01-14 09:45:58 +0000 | [diff] [blame] | 269 | proc_create("powerpc/rtas/poweron", S_IWUSR|S_IRUGO, NULL, |
Denis V. Lunev | 6674713 | 2008-04-29 01:02:26 -0700 | [diff] [blame] | 270 | &ppc_rtas_poweron_operations); |
Nathan Fontenot | 9becd2a | 2010-01-14 09:45:58 +0000 | [diff] [blame] | 271 | proc_create("powerpc/rtas/sensors", S_IRUGO, NULL, |
Denis V. Lunev | 6674713 | 2008-04-29 01:02:26 -0700 | [diff] [blame] | 272 | &ppc_rtas_sensors_operations); |
Nathan Fontenot | 9becd2a | 2010-01-14 09:45:58 +0000 | [diff] [blame] | 273 | proc_create("powerpc/rtas/frequency", S_IWUSR|S_IRUGO, NULL, |
Denis V. Lunev | 6674713 | 2008-04-29 01:02:26 -0700 | [diff] [blame] | 274 | &ppc_rtas_tone_freq_operations); |
Nathan Fontenot | 9becd2a | 2010-01-14 09:45:58 +0000 | [diff] [blame] | 275 | proc_create("powerpc/rtas/volume", S_IWUSR|S_IRUGO, NULL, |
Denis V. Lunev | 6674713 | 2008-04-29 01:02:26 -0700 | [diff] [blame] | 276 | &ppc_rtas_tone_volume_operations); |
Nathan Fontenot | 9becd2a | 2010-01-14 09:45:58 +0000 | [diff] [blame] | 277 | proc_create("powerpc/rtas/rmo_buffer", S_IRUSR, NULL, |
Denis V. Lunev | 6674713 | 2008-04-29 01:02:26 -0700 | [diff] [blame] | 278 | &ppc_rtas_rmo_buf_ops); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 279 | return 0; |
| 280 | } |
| 281 | |
| 282 | __initcall(proc_rtas_init); |
| 283 | |
| 284 | static int parse_number(const char __user *p, size_t count, unsigned long *val) |
| 285 | { |
| 286 | char buf[40]; |
| 287 | char *end; |
| 288 | |
| 289 | if (count > 39) |
| 290 | return -EINVAL; |
| 291 | |
| 292 | if (copy_from_user(buf, p, count)) |
| 293 | return -EFAULT; |
| 294 | |
| 295 | buf[count] = 0; |
| 296 | |
| 297 | *val = simple_strtoul(buf, &end, 10); |
| 298 | if (*end && *end != '\n') |
| 299 | return -EINVAL; |
| 300 | |
| 301 | return 0; |
| 302 | } |
| 303 | |
| 304 | /* ****************************************************************** */ |
| 305 | /* POWER-ON-TIME */ |
| 306 | /* ****************************************************************** */ |
| 307 | static ssize_t ppc_rtas_poweron_write(struct file *file, |
| 308 | const char __user *buf, size_t count, loff_t *ppos) |
| 309 | { |
| 310 | struct rtc_time tm; |
| 311 | unsigned long nowtime; |
| 312 | int error = parse_number(buf, count, &nowtime); |
| 313 | if (error) |
| 314 | return error; |
| 315 | |
| 316 | power_on_time = nowtime; /* save the time */ |
| 317 | |
| 318 | to_tm(nowtime, &tm); |
| 319 | |
| 320 | error = rtas_call(rtas_token("set-time-for-power-on"), 7, 1, NULL, |
| 321 | tm.tm_year, tm.tm_mon, tm.tm_mday, |
| 322 | tm.tm_hour, tm.tm_min, tm.tm_sec, 0 /* nano */); |
| 323 | if (error) |
| 324 | printk(KERN_WARNING "error: setting poweron time returned: %s\n", |
| 325 | ppc_rtas_process_error(error)); |
| 326 | return count; |
| 327 | } |
| 328 | /* ****************************************************************** */ |
| 329 | static int ppc_rtas_poweron_show(struct seq_file *m, void *v) |
| 330 | { |
| 331 | if (power_on_time == 0) |
| 332 | seq_printf(m, "Power on time not set\n"); |
| 333 | else |
| 334 | seq_printf(m, "%lu\n",power_on_time); |
| 335 | return 0; |
| 336 | } |
| 337 | |
| 338 | /* ****************************************************************** */ |
| 339 | /* PROGRESS */ |
| 340 | /* ****************************************************************** */ |
| 341 | static ssize_t ppc_rtas_progress_write(struct file *file, |
| 342 | const char __user *buf, size_t count, loff_t *ppos) |
| 343 | { |
| 344 | unsigned long hex; |
| 345 | |
| 346 | if (count >= MAX_LINELENGTH) |
| 347 | count = MAX_LINELENGTH -1; |
| 348 | if (copy_from_user(progress_led, buf, count)) { /* save the string */ |
| 349 | return -EFAULT; |
| 350 | } |
| 351 | progress_led[count] = 0; |
| 352 | |
| 353 | /* Lets see if the user passed hexdigits */ |
| 354 | hex = simple_strtoul(progress_led, NULL, 10); |
| 355 | |
Arnd Bergmann | 6566c6f | 2005-06-23 09:43:28 +1000 | [diff] [blame] | 356 | rtas_progress ((char *)progress_led, hex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 357 | return count; |
| 358 | |
| 359 | /* clear the line */ |
Arnd Bergmann | 6566c6f | 2005-06-23 09:43:28 +1000 | [diff] [blame] | 360 | /* rtas_progress(" ", 0xffff);*/ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 361 | } |
| 362 | /* ****************************************************************** */ |
| 363 | static int ppc_rtas_progress_show(struct seq_file *m, void *v) |
| 364 | { |
Segher Boessenkool | 9a6b507 | 2007-05-16 23:12:17 +1000 | [diff] [blame] | 365 | if (progress_led[0]) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 366 | seq_printf(m, "%s\n", progress_led); |
| 367 | return 0; |
| 368 | } |
| 369 | |
| 370 | /* ****************************************************************** */ |
| 371 | /* CLOCK */ |
| 372 | /* ****************************************************************** */ |
| 373 | static ssize_t ppc_rtas_clock_write(struct file *file, |
| 374 | const char __user *buf, size_t count, loff_t *ppos) |
| 375 | { |
| 376 | struct rtc_time tm; |
| 377 | unsigned long nowtime; |
| 378 | int error = parse_number(buf, count, &nowtime); |
| 379 | if (error) |
| 380 | return error; |
| 381 | |
| 382 | to_tm(nowtime, &tm); |
| 383 | error = rtas_call(rtas_token("set-time-of-day"), 7, 1, NULL, |
| 384 | tm.tm_year, tm.tm_mon, tm.tm_mday, |
| 385 | tm.tm_hour, tm.tm_min, tm.tm_sec, 0); |
| 386 | if (error) |
| 387 | printk(KERN_WARNING "error: setting the clock returned: %s\n", |
| 388 | ppc_rtas_process_error(error)); |
| 389 | return count; |
| 390 | } |
| 391 | /* ****************************************************************** */ |
| 392 | static int ppc_rtas_clock_show(struct seq_file *m, void *v) |
| 393 | { |
| 394 | int ret[8]; |
| 395 | int error = rtas_call(rtas_token("get-time-of-day"), 0, 8, ret); |
| 396 | |
| 397 | if (error) { |
| 398 | printk(KERN_WARNING "error: reading the clock returned: %s\n", |
| 399 | ppc_rtas_process_error(error)); |
| 400 | seq_printf(m, "0"); |
| 401 | } else { |
| 402 | unsigned int year, mon, day, hour, min, sec; |
| 403 | year = ret[0]; mon = ret[1]; day = ret[2]; |
| 404 | hour = ret[3]; min = ret[4]; sec = ret[5]; |
| 405 | seq_printf(m, "%lu\n", |
| 406 | mktime(year, mon, day, hour, min, sec)); |
| 407 | } |
| 408 | return 0; |
| 409 | } |
| 410 | |
| 411 | /* ****************************************************************** */ |
| 412 | /* SENSOR STUFF */ |
| 413 | /* ****************************************************************** */ |
| 414 | static int ppc_rtas_sensors_show(struct seq_file *m, void *v) |
| 415 | { |
| 416 | int i,j; |
| 417 | int state, error; |
| 418 | int get_sensor_state = rtas_token("get-sensor-state"); |
| 419 | |
| 420 | seq_printf(m, "RTAS (RunTime Abstraction Services) Sensor Information\n"); |
| 421 | seq_printf(m, "Sensor\t\tValue\t\tCondition\tLocation\n"); |
| 422 | seq_printf(m, "********************************************************\n"); |
| 423 | |
| 424 | if (ppc_rtas_find_all_sensors() != 0) { |
| 425 | seq_printf(m, "\nNo sensors are available\n"); |
| 426 | return 0; |
| 427 | } |
| 428 | |
| 429 | for (i=0; i<sensors.quant; i++) { |
| 430 | struct individual_sensor *p = &sensors.sensor[i]; |
| 431 | char rstr[64]; |
Jeremy Kerr | a7f67bd | 2006-07-12 15:35:54 +1000 | [diff] [blame] | 432 | const char *loc; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 433 | int llen, offs; |
| 434 | |
| 435 | sprintf (rstr, SENSOR_PREFIX"%04d", p->token); |
Stephen Rothwell | e2eb639 | 2007-04-03 22:26:41 +1000 | [diff] [blame] | 436 | loc = of_get_property(rtas_node, rstr, &llen); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 437 | |
| 438 | /* A sensor may have multiple instances */ |
| 439 | for (j = 0, offs = 0; j <= p->quant; j++) { |
| 440 | error = rtas_call(get_sensor_state, 2, 2, &state, |
| 441 | p->token, j); |
| 442 | |
| 443 | ppc_rtas_process_sensor(m, p, state, error, loc); |
| 444 | seq_putc(m, '\n'); |
| 445 | if (loc) { |
| 446 | offs += strlen(loc) + 1; |
| 447 | loc += strlen(loc) + 1; |
| 448 | if (offs >= llen) |
| 449 | loc = NULL; |
| 450 | } |
| 451 | } |
| 452 | } |
| 453 | return 0; |
| 454 | } |
| 455 | |
| 456 | /* ****************************************************************** */ |
| 457 | |
| 458 | static int ppc_rtas_find_all_sensors(void) |
| 459 | { |
Jeremy Kerr | a7f67bd | 2006-07-12 15:35:54 +1000 | [diff] [blame] | 460 | const unsigned int *utmp; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 461 | int len, i; |
| 462 | |
Stephen Rothwell | e2eb639 | 2007-04-03 22:26:41 +1000 | [diff] [blame] | 463 | utmp = of_get_property(rtas_node, "rtas-sensors", &len); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 464 | if (utmp == NULL) { |
| 465 | printk (KERN_ERR "error: could not get rtas-sensors\n"); |
| 466 | return 1; |
| 467 | } |
| 468 | |
| 469 | sensors.quant = len / 8; /* int + int */ |
| 470 | |
| 471 | for (i=0; i<sensors.quant; i++) { |
| 472 | sensors.sensor[i].token = *utmp++; |
| 473 | sensors.sensor[i].quant = *utmp++; |
| 474 | } |
| 475 | return 0; |
| 476 | } |
| 477 | |
| 478 | /* ****************************************************************** */ |
| 479 | /* |
| 480 | * Builds a string of what rtas returned |
| 481 | */ |
| 482 | static char *ppc_rtas_process_error(int error) |
| 483 | { |
| 484 | switch (error) { |
| 485 | case SENSOR_CRITICAL_HIGH: |
| 486 | return "(critical high)"; |
| 487 | case SENSOR_WARNING_HIGH: |
| 488 | return "(warning high)"; |
| 489 | case SENSOR_NORMAL: |
| 490 | return "(normal)"; |
| 491 | case SENSOR_WARNING_LOW: |
| 492 | return "(warning low)"; |
| 493 | case SENSOR_CRITICAL_LOW: |
| 494 | return "(critical low)"; |
| 495 | case SENSOR_SUCCESS: |
| 496 | return "(read ok)"; |
| 497 | case SENSOR_HW_ERROR: |
| 498 | return "(hardware error)"; |
| 499 | case SENSOR_BUSY: |
| 500 | return "(busy)"; |
| 501 | case SENSOR_NOT_EXIST: |
| 502 | return "(non existent)"; |
| 503 | case SENSOR_DR_ENTITY: |
| 504 | return "(dr entity removed)"; |
| 505 | default: |
| 506 | return "(UNKNOWN)"; |
| 507 | } |
| 508 | } |
| 509 | |
| 510 | /* ****************************************************************** */ |
| 511 | /* |
| 512 | * Builds a string out of what the sensor said |
| 513 | */ |
| 514 | |
| 515 | static void ppc_rtas_process_sensor(struct seq_file *m, |
Jeremy Kerr | a7f67bd | 2006-07-12 15:35:54 +1000 | [diff] [blame] | 516 | struct individual_sensor *s, int state, int error, const char *loc) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 517 | { |
| 518 | /* Defined return vales */ |
| 519 | const char * key_switch[] = { "Off\t", "Normal\t", "Secure\t", |
| 520 | "Maintenance" }; |
| 521 | const char * enclosure_switch[] = { "Closed", "Open" }; |
| 522 | const char * lid_status[] = { " ", "Open", "Closed" }; |
| 523 | const char * power_source[] = { "AC\t", "Battery", |
| 524 | "AC & Battery" }; |
| 525 | const char * battery_remaining[] = { "Very Low", "Low", "Mid", "High" }; |
| 526 | const char * epow_sensor[] = { |
| 527 | "EPOW Reset", "Cooling warning", "Power warning", |
| 528 | "System shutdown", "System halt", "EPOW main enclosure", |
| 529 | "EPOW power off" }; |
| 530 | const char * battery_cyclestate[] = { "None", "In progress", |
| 531 | "Requested" }; |
| 532 | const char * battery_charging[] = { "Charging", "Discharching", |
| 533 | "No current flow" }; |
| 534 | const char * ibm_drconnector[] = { "Empty", "Present", "Unusable", |
| 535 | "Exchange" }; |
| 536 | |
| 537 | int have_strings = 0; |
| 538 | int num_states = 0; |
| 539 | int temperature = 0; |
| 540 | int unknown = 0; |
| 541 | |
| 542 | /* What kind of sensor do we have here? */ |
| 543 | |
| 544 | switch (s->token) { |
| 545 | case KEY_SWITCH: |
| 546 | seq_printf(m, "Key switch:\t"); |
| 547 | num_states = sizeof(key_switch) / sizeof(char *); |
| 548 | if (state < num_states) { |
| 549 | seq_printf(m, "%s\t", key_switch[state]); |
| 550 | have_strings = 1; |
| 551 | } |
| 552 | break; |
| 553 | case ENCLOSURE_SWITCH: |
| 554 | seq_printf(m, "Enclosure switch:\t"); |
| 555 | num_states = sizeof(enclosure_switch) / sizeof(char *); |
| 556 | if (state < num_states) { |
| 557 | seq_printf(m, "%s\t", |
| 558 | enclosure_switch[state]); |
| 559 | have_strings = 1; |
| 560 | } |
| 561 | break; |
| 562 | case THERMAL_SENSOR: |
| 563 | seq_printf(m, "Temp. (C/F):\t"); |
| 564 | temperature = 1; |
| 565 | break; |
| 566 | case LID_STATUS: |
| 567 | seq_printf(m, "Lid status:\t"); |
| 568 | num_states = sizeof(lid_status) / sizeof(char *); |
| 569 | if (state < num_states) { |
| 570 | seq_printf(m, "%s\t", lid_status[state]); |
| 571 | have_strings = 1; |
| 572 | } |
| 573 | break; |
| 574 | case POWER_SOURCE: |
| 575 | seq_printf(m, "Power source:\t"); |
| 576 | num_states = sizeof(power_source) / sizeof(char *); |
| 577 | if (state < num_states) { |
| 578 | seq_printf(m, "%s\t", |
| 579 | power_source[state]); |
| 580 | have_strings = 1; |
| 581 | } |
| 582 | break; |
| 583 | case BATTERY_VOLTAGE: |
| 584 | seq_printf(m, "Battery voltage:\t"); |
| 585 | break; |
| 586 | case BATTERY_REMAINING: |
| 587 | seq_printf(m, "Battery remaining:\t"); |
| 588 | num_states = sizeof(battery_remaining) / sizeof(char *); |
| 589 | if (state < num_states) |
| 590 | { |
| 591 | seq_printf(m, "%s\t", |
| 592 | battery_remaining[state]); |
| 593 | have_strings = 1; |
| 594 | } |
| 595 | break; |
| 596 | case BATTERY_PERCENTAGE: |
| 597 | seq_printf(m, "Battery percentage:\t"); |
| 598 | break; |
| 599 | case EPOW_SENSOR: |
| 600 | seq_printf(m, "EPOW Sensor:\t"); |
| 601 | num_states = sizeof(epow_sensor) / sizeof(char *); |
| 602 | if (state < num_states) { |
| 603 | seq_printf(m, "%s\t", epow_sensor[state]); |
| 604 | have_strings = 1; |
| 605 | } |
| 606 | break; |
| 607 | case BATTERY_CYCLESTATE: |
| 608 | seq_printf(m, "Battery cyclestate:\t"); |
| 609 | num_states = sizeof(battery_cyclestate) / |
| 610 | sizeof(char *); |
| 611 | if (state < num_states) { |
| 612 | seq_printf(m, "%s\t", |
| 613 | battery_cyclestate[state]); |
| 614 | have_strings = 1; |
| 615 | } |
| 616 | break; |
| 617 | case BATTERY_CHARGING: |
| 618 | seq_printf(m, "Battery Charging:\t"); |
| 619 | num_states = sizeof(battery_charging) / sizeof(char *); |
| 620 | if (state < num_states) { |
| 621 | seq_printf(m, "%s\t", |
| 622 | battery_charging[state]); |
| 623 | have_strings = 1; |
| 624 | } |
| 625 | break; |
| 626 | case IBM_SURVEILLANCE: |
| 627 | seq_printf(m, "Surveillance:\t"); |
| 628 | break; |
| 629 | case IBM_FANRPM: |
| 630 | seq_printf(m, "Fan (rpm):\t"); |
| 631 | break; |
| 632 | case IBM_VOLTAGE: |
| 633 | seq_printf(m, "Voltage (mv):\t"); |
| 634 | break; |
| 635 | case IBM_DRCONNECTOR: |
| 636 | seq_printf(m, "DR connector:\t"); |
| 637 | num_states = sizeof(ibm_drconnector) / sizeof(char *); |
| 638 | if (state < num_states) { |
| 639 | seq_printf(m, "%s\t", |
| 640 | ibm_drconnector[state]); |
| 641 | have_strings = 1; |
| 642 | } |
| 643 | break; |
| 644 | case IBM_POWERSUPPLY: |
| 645 | seq_printf(m, "Powersupply:\t"); |
| 646 | break; |
| 647 | default: |
| 648 | seq_printf(m, "Unknown sensor (type %d), ignoring it\n", |
| 649 | s->token); |
| 650 | unknown = 1; |
| 651 | have_strings = 1; |
| 652 | break; |
| 653 | } |
| 654 | if (have_strings == 0) { |
| 655 | if (temperature) { |
| 656 | seq_printf(m, "%4d /%4d\t", state, cel_to_fahr(state)); |
| 657 | } else |
| 658 | seq_printf(m, "%10d\t", state); |
| 659 | } |
| 660 | if (unknown == 0) { |
| 661 | seq_printf(m, "%s\t", ppc_rtas_process_error(error)); |
| 662 | get_location_code(m, s, loc); |
| 663 | } |
| 664 | } |
| 665 | |
| 666 | /* ****************************************************************** */ |
| 667 | |
Jeremy Kerr | a7f67bd | 2006-07-12 15:35:54 +1000 | [diff] [blame] | 668 | static void check_location(struct seq_file *m, const char *c) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 669 | { |
| 670 | switch (c[0]) { |
| 671 | case LOC_PLANAR: |
| 672 | seq_printf(m, "Planar #%c", c[1]); |
| 673 | break; |
| 674 | case LOC_CPU: |
| 675 | seq_printf(m, "CPU #%c", c[1]); |
| 676 | break; |
| 677 | case LOC_FAN: |
| 678 | seq_printf(m, "Fan #%c", c[1]); |
| 679 | break; |
| 680 | case LOC_RACKMOUNTED: |
| 681 | seq_printf(m, "Rack #%c", c[1]); |
| 682 | break; |
| 683 | case LOC_VOLTAGE: |
| 684 | seq_printf(m, "Voltage #%c", c[1]); |
| 685 | break; |
| 686 | case LOC_LCD: |
| 687 | seq_printf(m, "LCD #%c", c[1]); |
| 688 | break; |
| 689 | case '.': |
| 690 | seq_printf(m, "- %c", c[1]); |
| 691 | break; |
| 692 | default: |
| 693 | seq_printf(m, "Unknown location"); |
| 694 | break; |
| 695 | } |
| 696 | } |
| 697 | |
| 698 | |
| 699 | /* ****************************************************************** */ |
| 700 | /* |
| 701 | * Format: |
| 702 | * ${LETTER}${NUMBER}[[-/]${LETTER}${NUMBER} [ ... ] ] |
| 703 | * the '.' may be an abbrevation |
| 704 | */ |
Jeremy Kerr | a7f67bd | 2006-07-12 15:35:54 +1000 | [diff] [blame] | 705 | static void check_location_string(struct seq_file *m, const char *c) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 706 | { |
| 707 | while (*c) { |
| 708 | if (isalpha(*c) || *c == '.') |
| 709 | check_location(m, c); |
| 710 | else if (*c == '/' || *c == '-') |
| 711 | seq_printf(m, " at "); |
| 712 | c++; |
| 713 | } |
| 714 | } |
| 715 | |
| 716 | |
| 717 | /* ****************************************************************** */ |
| 718 | |
Jeremy Kerr | a7f67bd | 2006-07-12 15:35:54 +1000 | [diff] [blame] | 719 | static void get_location_code(struct seq_file *m, struct individual_sensor *s, |
| 720 | const char *loc) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 721 | { |
| 722 | if (!loc || !*loc) { |
| 723 | seq_printf(m, "---");/* does not have a location */ |
| 724 | } else { |
| 725 | check_location_string(m, loc); |
| 726 | } |
| 727 | seq_putc(m, ' '); |
| 728 | } |
| 729 | /* ****************************************************************** */ |
| 730 | /* INDICATORS - Tone Frequency */ |
| 731 | /* ****************************************************************** */ |
| 732 | static ssize_t ppc_rtas_tone_freq_write(struct file *file, |
| 733 | const char __user *buf, size_t count, loff_t *ppos) |
| 734 | { |
| 735 | unsigned long freq; |
| 736 | int error = parse_number(buf, count, &freq); |
| 737 | if (error) |
| 738 | return error; |
| 739 | |
| 740 | rtas_tone_frequency = freq; /* save it for later */ |
| 741 | error = rtas_call(rtas_token("set-indicator"), 3, 1, NULL, |
| 742 | TONE_FREQUENCY, 0, freq); |
| 743 | if (error) |
| 744 | printk(KERN_WARNING "error: setting tone frequency returned: %s\n", |
| 745 | ppc_rtas_process_error(error)); |
| 746 | return count; |
| 747 | } |
| 748 | /* ****************************************************************** */ |
| 749 | static int ppc_rtas_tone_freq_show(struct seq_file *m, void *v) |
| 750 | { |
| 751 | seq_printf(m, "%lu\n", rtas_tone_frequency); |
| 752 | return 0; |
| 753 | } |
| 754 | /* ****************************************************************** */ |
| 755 | /* INDICATORS - Tone Volume */ |
| 756 | /* ****************************************************************** */ |
| 757 | static ssize_t ppc_rtas_tone_volume_write(struct file *file, |
| 758 | const char __user *buf, size_t count, loff_t *ppos) |
| 759 | { |
| 760 | unsigned long volume; |
| 761 | int error = parse_number(buf, count, &volume); |
| 762 | if (error) |
| 763 | return error; |
| 764 | |
| 765 | if (volume > 100) |
| 766 | volume = 100; |
| 767 | |
| 768 | rtas_tone_volume = volume; /* save it for later */ |
| 769 | error = rtas_call(rtas_token("set-indicator"), 3, 1, NULL, |
| 770 | TONE_VOLUME, 0, volume); |
| 771 | if (error) |
| 772 | printk(KERN_WARNING "error: setting tone volume returned: %s\n", |
| 773 | ppc_rtas_process_error(error)); |
| 774 | return count; |
| 775 | } |
| 776 | /* ****************************************************************** */ |
| 777 | static int ppc_rtas_tone_volume_show(struct seq_file *m, void *v) |
| 778 | { |
| 779 | seq_printf(m, "%lu\n", rtas_tone_volume); |
| 780 | return 0; |
| 781 | } |
| 782 | |
| 783 | #define RMO_READ_BUF_MAX 30 |
| 784 | |
| 785 | /* RTAS Userspace access */ |
| 786 | static int ppc_rtas_rmo_buf_show(struct seq_file *m, void *v) |
| 787 | { |
| 788 | seq_printf(m, "%016lx %x\n", rtas_rmo_buf, RTAS_RMOBUF_MAX); |
| 789 | return 0; |
| 790 | } |