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765 lines
21 KiB
765 lines
21 KiB
// SPDX-License-Identifier: GPL-2.0 |
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/* |
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* Copyright (C) 2000 Tilmann Bitterberg |
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* ([email protected]) |
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* |
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* RTAS (Runtime Abstraction Services) stuff |
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* Intention is to provide a clean user interface |
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* to use the RTAS. |
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* |
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* TODO: |
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* Split off a header file and maybe move it to a different |
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* location. Write Documentation on what the /proc/rtas/ entries |
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* actually do. |
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*/ |
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|
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#include <linux/errno.h> |
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#include <linux/sched.h> |
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#include <linux/proc_fs.h> |
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#include <linux/stat.h> |
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#include <linux/ctype.h> |
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#include <linux/time.h> |
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#include <linux/string.h> |
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#include <linux/init.h> |
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#include <linux/seq_file.h> |
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#include <linux/bitops.h> |
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#include <linux/rtc.h> |
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|
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#include <linux/uaccess.h> |
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#include <asm/processor.h> |
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#include <asm/io.h> |
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#include <asm/prom.h> |
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#include <asm/rtas.h> |
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#include <asm/machdep.h> /* for ppc_md */ |
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#include <asm/time.h> |
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|
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/* Token for Sensors */ |
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#define KEY_SWITCH 0x0001 |
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#define ENCLOSURE_SWITCH 0x0002 |
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#define THERMAL_SENSOR 0x0003 |
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#define LID_STATUS 0x0004 |
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#define POWER_SOURCE 0x0005 |
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#define BATTERY_VOLTAGE 0x0006 |
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#define BATTERY_REMAINING 0x0007 |
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#define BATTERY_PERCENTAGE 0x0008 |
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#define EPOW_SENSOR 0x0009 |
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#define BATTERY_CYCLESTATE 0x000a |
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#define BATTERY_CHARGING 0x000b |
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|
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/* IBM specific sensors */ |
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#define IBM_SURVEILLANCE 0x2328 /* 9000 */ |
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#define IBM_FANRPM 0x2329 /* 9001 */ |
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#define IBM_VOLTAGE 0x232a /* 9002 */ |
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#define IBM_DRCONNECTOR 0x232b /* 9003 */ |
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#define IBM_POWERSUPPLY 0x232c /* 9004 */ |
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|
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/* Status return values */ |
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#define SENSOR_CRITICAL_HIGH 13 |
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#define SENSOR_WARNING_HIGH 12 |
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#define SENSOR_NORMAL 11 |
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#define SENSOR_WARNING_LOW 10 |
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#define SENSOR_CRITICAL_LOW 9 |
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#define SENSOR_SUCCESS 0 |
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#define SENSOR_HW_ERROR -1 |
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#define SENSOR_BUSY -2 |
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#define SENSOR_NOT_EXIST -3 |
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#define SENSOR_DR_ENTITY -9000 |
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|
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/* Location Codes */ |
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#define LOC_SCSI_DEV_ADDR 'A' |
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#define LOC_SCSI_DEV_LOC 'B' |
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#define LOC_CPU 'C' |
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#define LOC_DISKETTE 'D' |
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#define LOC_ETHERNET 'E' |
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#define LOC_FAN 'F' |
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#define LOC_GRAPHICS 'G' |
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/* reserved / not used 'H' */ |
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#define LOC_IO_ADAPTER 'I' |
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/* reserved / not used 'J' */ |
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#define LOC_KEYBOARD 'K' |
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#define LOC_LCD 'L' |
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#define LOC_MEMORY 'M' |
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#define LOC_NV_MEMORY 'N' |
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#define LOC_MOUSE 'O' |
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#define LOC_PLANAR 'P' |
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#define LOC_OTHER_IO 'Q' |
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#define LOC_PARALLEL 'R' |
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#define LOC_SERIAL 'S' |
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#define LOC_DEAD_RING 'T' |
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#define LOC_RACKMOUNTED 'U' /* for _u_nit is rack mounted */ |
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#define LOC_VOLTAGE 'V' |
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#define LOC_SWITCH_ADAPTER 'W' |
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#define LOC_OTHER 'X' |
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#define LOC_FIRMWARE 'Y' |
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#define LOC_SCSI 'Z' |
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|
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/* Tokens for indicators */ |
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#define TONE_FREQUENCY 0x0001 /* 0 - 1000 (HZ)*/ |
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#define TONE_VOLUME 0x0002 /* 0 - 100 (%) */ |
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#define SYSTEM_POWER_STATE 0x0003 |
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#define WARNING_LIGHT 0x0004 |
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#define DISK_ACTIVITY_LIGHT 0x0005 |
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#define HEX_DISPLAY_UNIT 0x0006 |
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#define BATTERY_WARNING_TIME 0x0007 |
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#define CONDITION_CYCLE_REQUEST 0x0008 |
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#define SURVEILLANCE_INDICATOR 0x2328 /* 9000 */ |
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#define DR_ACTION 0x2329 /* 9001 */ |
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#define DR_INDICATOR 0x232a /* 9002 */ |
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/* 9003 - 9004: Vendor specific */ |
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/* 9006 - 9999: Vendor specific */ |
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|
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/* other */ |
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#define MAX_SENSORS 17 /* I only know of 17 sensors */ |
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#define MAX_LINELENGTH 256 |
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#define SENSOR_PREFIX "ibm,sensor-" |
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#define cel_to_fahr(x) ((x*9/5)+32) |
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struct individual_sensor { |
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unsigned int token; |
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unsigned int quant; |
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}; |
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struct rtas_sensors { |
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struct individual_sensor sensor[MAX_SENSORS]; |
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unsigned int quant; |
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}; |
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|
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/* Globals */ |
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static struct rtas_sensors sensors; |
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static struct device_node *rtas_node = NULL; |
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static unsigned long power_on_time = 0; /* Save the time the user set */ |
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static char progress_led[MAX_LINELENGTH]; |
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static unsigned long rtas_tone_frequency = 1000; |
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static unsigned long rtas_tone_volume = 0; |
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|
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/* ****************************************************************** */ |
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/* Declarations */ |
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static int ppc_rtas_sensors_show(struct seq_file *m, void *v); |
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static int ppc_rtas_clock_show(struct seq_file *m, void *v); |
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static ssize_t ppc_rtas_clock_write(struct file *file, |
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const char __user *buf, size_t count, loff_t *ppos); |
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static int ppc_rtas_progress_show(struct seq_file *m, void *v); |
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static ssize_t ppc_rtas_progress_write(struct file *file, |
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const char __user *buf, size_t count, loff_t *ppos); |
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static int ppc_rtas_poweron_show(struct seq_file *m, void *v); |
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static ssize_t ppc_rtas_poweron_write(struct file *file, |
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const char __user *buf, size_t count, loff_t *ppos); |
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static ssize_t ppc_rtas_tone_freq_write(struct file *file, |
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const char __user *buf, size_t count, loff_t *ppos); |
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static int ppc_rtas_tone_freq_show(struct seq_file *m, void *v); |
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static ssize_t ppc_rtas_tone_volume_write(struct file *file, |
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const char __user *buf, size_t count, loff_t *ppos); |
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static int ppc_rtas_tone_volume_show(struct seq_file *m, void *v); |
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static int ppc_rtas_rmo_buf_show(struct seq_file *m, void *v); |
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|
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static int poweron_open(struct inode *inode, struct file *file) |
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{ |
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return single_open(file, ppc_rtas_poweron_show, NULL); |
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} |
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static const struct proc_ops ppc_rtas_poweron_proc_ops = { |
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.proc_open = poweron_open, |
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.proc_read = seq_read, |
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.proc_lseek = seq_lseek, |
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.proc_write = ppc_rtas_poweron_write, |
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.proc_release = single_release, |
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}; |
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static int progress_open(struct inode *inode, struct file *file) |
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{ |
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return single_open(file, ppc_rtas_progress_show, NULL); |
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} |
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static const struct proc_ops ppc_rtas_progress_proc_ops = { |
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.proc_open = progress_open, |
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.proc_read = seq_read, |
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.proc_lseek = seq_lseek, |
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.proc_write = ppc_rtas_progress_write, |
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.proc_release = single_release, |
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}; |
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static int clock_open(struct inode *inode, struct file *file) |
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{ |
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return single_open(file, ppc_rtas_clock_show, NULL); |
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} |
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static const struct proc_ops ppc_rtas_clock_proc_ops = { |
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.proc_open = clock_open, |
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.proc_read = seq_read, |
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.proc_lseek = seq_lseek, |
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.proc_write = ppc_rtas_clock_write, |
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.proc_release = single_release, |
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}; |
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static int tone_freq_open(struct inode *inode, struct file *file) |
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{ |
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return single_open(file, ppc_rtas_tone_freq_show, NULL); |
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} |
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static const struct proc_ops ppc_rtas_tone_freq_proc_ops = { |
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.proc_open = tone_freq_open, |
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.proc_read = seq_read, |
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.proc_lseek = seq_lseek, |
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.proc_write = ppc_rtas_tone_freq_write, |
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.proc_release = single_release, |
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}; |
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static int tone_volume_open(struct inode *inode, struct file *file) |
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{ |
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return single_open(file, ppc_rtas_tone_volume_show, NULL); |
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} |
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static const struct proc_ops ppc_rtas_tone_volume_proc_ops = { |
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.proc_open = tone_volume_open, |
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.proc_read = seq_read, |
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.proc_lseek = seq_lseek, |
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.proc_write = ppc_rtas_tone_volume_write, |
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.proc_release = single_release, |
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}; |
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static int ppc_rtas_find_all_sensors(void); |
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static void ppc_rtas_process_sensor(struct seq_file *m, |
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struct individual_sensor *s, int state, int error, const char *loc); |
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static char *ppc_rtas_process_error(int error); |
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static void get_location_code(struct seq_file *m, |
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struct individual_sensor *s, const char *loc); |
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static void check_location_string(struct seq_file *m, const char *c); |
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static void check_location(struct seq_file *m, const char *c); |
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static int __init proc_rtas_init(void) |
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{ |
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if (!machine_is(pseries)) |
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return -ENODEV; |
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rtas_node = of_find_node_by_name(NULL, "rtas"); |
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if (rtas_node == NULL) |
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return -ENODEV; |
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proc_create("powerpc/rtas/progress", 0644, NULL, |
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&ppc_rtas_progress_proc_ops); |
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proc_create("powerpc/rtas/clock", 0644, NULL, |
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&ppc_rtas_clock_proc_ops); |
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proc_create("powerpc/rtas/poweron", 0644, NULL, |
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&ppc_rtas_poweron_proc_ops); |
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proc_create_single("powerpc/rtas/sensors", 0444, NULL, |
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ppc_rtas_sensors_show); |
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proc_create("powerpc/rtas/frequency", 0644, NULL, |
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&ppc_rtas_tone_freq_proc_ops); |
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proc_create("powerpc/rtas/volume", 0644, NULL, |
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&ppc_rtas_tone_volume_proc_ops); |
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proc_create_single("powerpc/rtas/rmo_buffer", 0400, NULL, |
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ppc_rtas_rmo_buf_show); |
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return 0; |
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} |
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__initcall(proc_rtas_init); |
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static int parse_number(const char __user *p, size_t count, u64 *val) |
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{ |
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char buf[40]; |
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char *end; |
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if (count > 39) |
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return -EINVAL; |
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if (copy_from_user(buf, p, count)) |
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return -EFAULT; |
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buf[count] = 0; |
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*val = simple_strtoull(buf, &end, 10); |
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if (*end && *end != '\n') |
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return -EINVAL; |
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return 0; |
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} |
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/* ****************************************************************** */ |
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/* POWER-ON-TIME */ |
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/* ****************************************************************** */ |
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static ssize_t ppc_rtas_poweron_write(struct file *file, |
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const char __user *buf, size_t count, loff_t *ppos) |
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{ |
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struct rtc_time tm; |
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time64_t nowtime; |
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int error = parse_number(buf, count, &nowtime); |
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if (error) |
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return error; |
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power_on_time = nowtime; /* save the time */ |
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rtc_time64_to_tm(nowtime, &tm); |
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error = rtas_call(rtas_token("set-time-for-power-on"), 7, 1, NULL, |
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tm.tm_year + 1900, tm.tm_mon + 1, tm.tm_mday, |
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tm.tm_hour, tm.tm_min, tm.tm_sec, 0 /* nano */); |
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if (error) |
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printk(KERN_WARNING "error: setting poweron time returned: %s\n", |
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ppc_rtas_process_error(error)); |
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return count; |
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} |
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/* ****************************************************************** */ |
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static int ppc_rtas_poweron_show(struct seq_file *m, void *v) |
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{ |
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if (power_on_time == 0) |
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seq_printf(m, "Power on time not set\n"); |
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else |
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seq_printf(m, "%lu\n",power_on_time); |
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return 0; |
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} |
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/* ****************************************************************** */ |
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/* PROGRESS */ |
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/* ****************************************************************** */ |
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static ssize_t ppc_rtas_progress_write(struct file *file, |
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const char __user *buf, size_t count, loff_t *ppos) |
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{ |
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unsigned long hex; |
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if (count >= MAX_LINELENGTH) |
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count = MAX_LINELENGTH -1; |
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if (copy_from_user(progress_led, buf, count)) { /* save the string */ |
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return -EFAULT; |
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} |
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progress_led[count] = 0; |
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/* Lets see if the user passed hexdigits */ |
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hex = simple_strtoul(progress_led, NULL, 10); |
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rtas_progress ((char *)progress_led, hex); |
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return count; |
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/* clear the line */ |
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/* rtas_progress(" ", 0xffff);*/ |
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} |
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/* ****************************************************************** */ |
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static int ppc_rtas_progress_show(struct seq_file *m, void *v) |
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{ |
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if (progress_led[0]) |
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seq_printf(m, "%s\n", progress_led); |
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return 0; |
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} |
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/* ****************************************************************** */ |
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/* CLOCK */ |
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/* ****************************************************************** */ |
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static ssize_t ppc_rtas_clock_write(struct file *file, |
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const char __user *buf, size_t count, loff_t *ppos) |
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{ |
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struct rtc_time tm; |
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time64_t nowtime; |
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int error = parse_number(buf, count, &nowtime); |
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if (error) |
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return error; |
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rtc_time64_to_tm(nowtime, &tm); |
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error = rtas_call(rtas_token("set-time-of-day"), 7, 1, NULL, |
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tm.tm_year + 1900, tm.tm_mon + 1, tm.tm_mday, |
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tm.tm_hour, tm.tm_min, tm.tm_sec, 0); |
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if (error) |
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printk(KERN_WARNING "error: setting the clock returned: %s\n", |
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ppc_rtas_process_error(error)); |
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return count; |
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} |
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/* ****************************************************************** */ |
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static int ppc_rtas_clock_show(struct seq_file *m, void *v) |
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{ |
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int ret[8]; |
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int error = rtas_call(rtas_token("get-time-of-day"), 0, 8, ret); |
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if (error) { |
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printk(KERN_WARNING "error: reading the clock returned: %s\n", |
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ppc_rtas_process_error(error)); |
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seq_printf(m, "0"); |
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} else { |
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unsigned int year, mon, day, hour, min, sec; |
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year = ret[0]; mon = ret[1]; day = ret[2]; |
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hour = ret[3]; min = ret[4]; sec = ret[5]; |
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seq_printf(m, "%lld\n", |
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mktime64(year, mon, day, hour, min, sec)); |
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} |
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return 0; |
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} |
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/* ****************************************************************** */ |
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/* SENSOR STUFF */ |
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/* ****************************************************************** */ |
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static int ppc_rtas_sensors_show(struct seq_file *m, void *v) |
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{ |
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int i,j; |
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int state, error; |
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int get_sensor_state = rtas_token("get-sensor-state"); |
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seq_printf(m, "RTAS (RunTime Abstraction Services) Sensor Information\n"); |
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seq_printf(m, "Sensor\t\tValue\t\tCondition\tLocation\n"); |
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seq_printf(m, "********************************************************\n"); |
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if (ppc_rtas_find_all_sensors() != 0) { |
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seq_printf(m, "\nNo sensors are available\n"); |
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return 0; |
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} |
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for (i=0; i<sensors.quant; i++) { |
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struct individual_sensor *p = &sensors.sensor[i]; |
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char rstr[64]; |
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const char *loc; |
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int llen, offs; |
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sprintf (rstr, SENSOR_PREFIX"%04d", p->token); |
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loc = of_get_property(rtas_node, rstr, &llen); |
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|
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/* A sensor may have multiple instances */ |
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for (j = 0, offs = 0; j <= p->quant; j++) { |
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error = rtas_call(get_sensor_state, 2, 2, &state, |
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p->token, j); |
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ppc_rtas_process_sensor(m, p, state, error, loc); |
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seq_putc(m, '\n'); |
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if (loc) { |
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offs += strlen(loc) + 1; |
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loc += strlen(loc) + 1; |
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if (offs >= llen) |
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loc = NULL; |
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} |
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} |
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} |
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return 0; |
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} |
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/* ****************************************************************** */ |
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static int ppc_rtas_find_all_sensors(void) |
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{ |
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const unsigned int *utmp; |
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int len, i; |
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utmp = of_get_property(rtas_node, "rtas-sensors", &len); |
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if (utmp == NULL) { |
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printk (KERN_ERR "error: could not get rtas-sensors\n"); |
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return 1; |
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} |
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sensors.quant = len / 8; /* int + int */ |
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for (i=0; i<sensors.quant; i++) { |
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sensors.sensor[i].token = *utmp++; |
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sensors.sensor[i].quant = *utmp++; |
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} |
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return 0; |
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} |
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|
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/* ****************************************************************** */ |
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/* |
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* Builds a string of what rtas returned |
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*/ |
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static char *ppc_rtas_process_error(int error) |
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{ |
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switch (error) { |
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case SENSOR_CRITICAL_HIGH: |
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return "(critical high)"; |
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case SENSOR_WARNING_HIGH: |
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return "(warning high)"; |
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case SENSOR_NORMAL: |
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return "(normal)"; |
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case SENSOR_WARNING_LOW: |
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return "(warning low)"; |
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case SENSOR_CRITICAL_LOW: |
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return "(critical low)"; |
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case SENSOR_SUCCESS: |
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return "(read ok)"; |
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case SENSOR_HW_ERROR: |
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return "(hardware error)"; |
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case SENSOR_BUSY: |
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return "(busy)"; |
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case SENSOR_NOT_EXIST: |
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return "(non existent)"; |
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case SENSOR_DR_ENTITY: |
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return "(dr entity removed)"; |
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default: |
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return "(UNKNOWN)"; |
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} |
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} |
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|
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/* ****************************************************************** */ |
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/* |
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* Builds a string out of what the sensor said |
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*/ |
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|
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static void ppc_rtas_process_sensor(struct seq_file *m, |
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struct individual_sensor *s, int state, int error, const char *loc) |
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{ |
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/* Defined return vales */ |
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const char * key_switch[] = { "Off\t", "Normal\t", "Secure\t", |
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"Maintenance" }; |
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const char * enclosure_switch[] = { "Closed", "Open" }; |
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const char * lid_status[] = { " ", "Open", "Closed" }; |
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const char * power_source[] = { "AC\t", "Battery", |
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"AC & Battery" }; |
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const char * battery_remaining[] = { "Very Low", "Low", "Mid", "High" }; |
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const char * epow_sensor[] = { |
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"EPOW Reset", "Cooling warning", "Power warning", |
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"System shutdown", "System halt", "EPOW main enclosure", |
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"EPOW power off" }; |
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const char * battery_cyclestate[] = { "None", "In progress", |
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"Requested" }; |
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const char * battery_charging[] = { "Charging", "Discharging", |
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"No current flow" }; |
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const char * ibm_drconnector[] = { "Empty", "Present", "Unusable", |
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"Exchange" }; |
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|
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int have_strings = 0; |
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int num_states = 0; |
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int temperature = 0; |
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int unknown = 0; |
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|
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/* What kind of sensor do we have here? */ |
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|
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switch (s->token) { |
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case KEY_SWITCH: |
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seq_printf(m, "Key switch:\t"); |
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num_states = sizeof(key_switch) / sizeof(char *); |
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if (state < num_states) { |
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seq_printf(m, "%s\t", key_switch[state]); |
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have_strings = 1; |
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} |
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break; |
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case ENCLOSURE_SWITCH: |
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seq_printf(m, "Enclosure switch:\t"); |
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num_states = sizeof(enclosure_switch) / sizeof(char *); |
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if (state < num_states) { |
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seq_printf(m, "%s\t", |
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enclosure_switch[state]); |
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have_strings = 1; |
|
} |
|
break; |
|
case THERMAL_SENSOR: |
|
seq_printf(m, "Temp. (C/F):\t"); |
|
temperature = 1; |
|
break; |
|
case LID_STATUS: |
|
seq_printf(m, "Lid status:\t"); |
|
num_states = sizeof(lid_status) / sizeof(char *); |
|
if (state < num_states) { |
|
seq_printf(m, "%s\t", lid_status[state]); |
|
have_strings = 1; |
|
} |
|
break; |
|
case POWER_SOURCE: |
|
seq_printf(m, "Power source:\t"); |
|
num_states = sizeof(power_source) / sizeof(char *); |
|
if (state < num_states) { |
|
seq_printf(m, "%s\t", |
|
power_source[state]); |
|
have_strings = 1; |
|
} |
|
break; |
|
case BATTERY_VOLTAGE: |
|
seq_printf(m, "Battery voltage:\t"); |
|
break; |
|
case BATTERY_REMAINING: |
|
seq_printf(m, "Battery remaining:\t"); |
|
num_states = sizeof(battery_remaining) / sizeof(char *); |
|
if (state < num_states) |
|
{ |
|
seq_printf(m, "%s\t", |
|
battery_remaining[state]); |
|
have_strings = 1; |
|
} |
|
break; |
|
case BATTERY_PERCENTAGE: |
|
seq_printf(m, "Battery percentage:\t"); |
|
break; |
|
case EPOW_SENSOR: |
|
seq_printf(m, "EPOW Sensor:\t"); |
|
num_states = sizeof(epow_sensor) / sizeof(char *); |
|
if (state < num_states) { |
|
seq_printf(m, "%s\t", epow_sensor[state]); |
|
have_strings = 1; |
|
} |
|
break; |
|
case BATTERY_CYCLESTATE: |
|
seq_printf(m, "Battery cyclestate:\t"); |
|
num_states = sizeof(battery_cyclestate) / |
|
sizeof(char *); |
|
if (state < num_states) { |
|
seq_printf(m, "%s\t", |
|
battery_cyclestate[state]); |
|
have_strings = 1; |
|
} |
|
break; |
|
case BATTERY_CHARGING: |
|
seq_printf(m, "Battery Charging:\t"); |
|
num_states = sizeof(battery_charging) / sizeof(char *); |
|
if (state < num_states) { |
|
seq_printf(m, "%s\t", |
|
battery_charging[state]); |
|
have_strings = 1; |
|
} |
|
break; |
|
case IBM_SURVEILLANCE: |
|
seq_printf(m, "Surveillance:\t"); |
|
break; |
|
case IBM_FANRPM: |
|
seq_printf(m, "Fan (rpm):\t"); |
|
break; |
|
case IBM_VOLTAGE: |
|
seq_printf(m, "Voltage (mv):\t"); |
|
break; |
|
case IBM_DRCONNECTOR: |
|
seq_printf(m, "DR connector:\t"); |
|
num_states = sizeof(ibm_drconnector) / sizeof(char *); |
|
if (state < num_states) { |
|
seq_printf(m, "%s\t", |
|
ibm_drconnector[state]); |
|
have_strings = 1; |
|
} |
|
break; |
|
case IBM_POWERSUPPLY: |
|
seq_printf(m, "Powersupply:\t"); |
|
break; |
|
default: |
|
seq_printf(m, "Unknown sensor (type %d), ignoring it\n", |
|
s->token); |
|
unknown = 1; |
|
have_strings = 1; |
|
break; |
|
} |
|
if (have_strings == 0) { |
|
if (temperature) { |
|
seq_printf(m, "%4d /%4d\t", state, cel_to_fahr(state)); |
|
} else |
|
seq_printf(m, "%10d\t", state); |
|
} |
|
if (unknown == 0) { |
|
seq_printf(m, "%s\t", ppc_rtas_process_error(error)); |
|
get_location_code(m, s, loc); |
|
} |
|
} |
|
|
|
/* ****************************************************************** */ |
|
|
|
static void check_location(struct seq_file *m, const char *c) |
|
{ |
|
switch (c[0]) { |
|
case LOC_PLANAR: |
|
seq_printf(m, "Planar #%c", c[1]); |
|
break; |
|
case LOC_CPU: |
|
seq_printf(m, "CPU #%c", c[1]); |
|
break; |
|
case LOC_FAN: |
|
seq_printf(m, "Fan #%c", c[1]); |
|
break; |
|
case LOC_RACKMOUNTED: |
|
seq_printf(m, "Rack #%c", c[1]); |
|
break; |
|
case LOC_VOLTAGE: |
|
seq_printf(m, "Voltage #%c", c[1]); |
|
break; |
|
case LOC_LCD: |
|
seq_printf(m, "LCD #%c", c[1]); |
|
break; |
|
case '.': |
|
seq_printf(m, "- %c", c[1]); |
|
break; |
|
default: |
|
seq_printf(m, "Unknown location"); |
|
break; |
|
} |
|
} |
|
|
|
|
|
/* ****************************************************************** */ |
|
/* |
|
* Format: |
|
* ${LETTER}${NUMBER}[[-/]${LETTER}${NUMBER} [ ... ] ] |
|
* the '.' may be an abbreviation |
|
*/ |
|
static void check_location_string(struct seq_file *m, const char *c) |
|
{ |
|
while (*c) { |
|
if (isalpha(*c) || *c == '.') |
|
check_location(m, c); |
|
else if (*c == '/' || *c == '-') |
|
seq_printf(m, " at "); |
|
c++; |
|
} |
|
} |
|
|
|
|
|
/* ****************************************************************** */ |
|
|
|
static void get_location_code(struct seq_file *m, struct individual_sensor *s, |
|
const char *loc) |
|
{ |
|
if (!loc || !*loc) { |
|
seq_printf(m, "---");/* does not have a location */ |
|
} else { |
|
check_location_string(m, loc); |
|
} |
|
seq_putc(m, ' '); |
|
} |
|
/* ****************************************************************** */ |
|
/* INDICATORS - Tone Frequency */ |
|
/* ****************************************************************** */ |
|
static ssize_t ppc_rtas_tone_freq_write(struct file *file, |
|
const char __user *buf, size_t count, loff_t *ppos) |
|
{ |
|
u64 freq; |
|
int error = parse_number(buf, count, &freq); |
|
if (error) |
|
return error; |
|
|
|
rtas_tone_frequency = freq; /* save it for later */ |
|
error = rtas_call(rtas_token("set-indicator"), 3, 1, NULL, |
|
TONE_FREQUENCY, 0, freq); |
|
if (error) |
|
printk(KERN_WARNING "error: setting tone frequency returned: %s\n", |
|
ppc_rtas_process_error(error)); |
|
return count; |
|
} |
|
/* ****************************************************************** */ |
|
static int ppc_rtas_tone_freq_show(struct seq_file *m, void *v) |
|
{ |
|
seq_printf(m, "%lu\n", rtas_tone_frequency); |
|
return 0; |
|
} |
|
/* ****************************************************************** */ |
|
/* INDICATORS - Tone Volume */ |
|
/* ****************************************************************** */ |
|
static ssize_t ppc_rtas_tone_volume_write(struct file *file, |
|
const char __user *buf, size_t count, loff_t *ppos) |
|
{ |
|
u64 volume; |
|
int error = parse_number(buf, count, &volume); |
|
if (error) |
|
return error; |
|
|
|
if (volume > 100) |
|
volume = 100; |
|
|
|
rtas_tone_volume = volume; /* save it for later */ |
|
error = rtas_call(rtas_token("set-indicator"), 3, 1, NULL, |
|
TONE_VOLUME, 0, volume); |
|
if (error) |
|
printk(KERN_WARNING "error: setting tone volume returned: %s\n", |
|
ppc_rtas_process_error(error)); |
|
return count; |
|
} |
|
/* ****************************************************************** */ |
|
static int ppc_rtas_tone_volume_show(struct seq_file *m, void *v) |
|
{ |
|
seq_printf(m, "%lu\n", rtas_tone_volume); |
|
return 0; |
|
} |
|
|
|
#define RMO_READ_BUF_MAX 30 |
|
|
|
/* RTAS Userspace access */ |
|
static int ppc_rtas_rmo_buf_show(struct seq_file *m, void *v) |
|
{ |
|
seq_printf(m, "%016lx %x\n", rtas_rmo_buf, RTAS_RMOBUF_MAX); |
|
return 0; |
|
}
|
|
|