diff options
Diffstat (limited to 'battstat/apmlib')
| -rw-r--r-- | battstat/apmlib/apm.h | 34 | ||||
| -rw-r--r-- | battstat/apmlib/apmlib.c | 439 |
2 files changed, 243 insertions, 230 deletions
diff --git a/battstat/apmlib/apm.h b/battstat/apmlib/apm.h index 5b44ab71..619c704d 100644 --- a/battstat/apmlib/apm.h +++ b/battstat/apmlib/apm.h @@ -51,22 +51,22 @@ typedef struct apm_info } apm_info; -extern int apm_exists(void); -extern int apm_read(apm_info * i); -extern dev_t apm_dev(void); -extern int apm_open(void); -extern int apm_close(int fd); -extern int apm_get_events(int fd, int timeout, apm_event_t * events, int n); -extern int apm_suspend(int fd); -extern int apm_standby(int fd); -extern int apm_set_ignore(int fd, int mode); -extern unsigned int apm_last_error(int fd); -extern const char *apm_error_name( unsigned int err ); -extern int apm_reject(int fd); -extern const char *apm_event_name(apm_event_t event); -extern const char *apm_time(time_t t); -extern const char *apm_delta_time(time_t then, time_t now); -extern const char *apm_time_nosec(time_t t); +extern int apm_exists (void); +extern int apm_read (apm_info * i); +extern dev_t apm_dev (void); +extern int apm_open (void); +extern int apm_close (int fd); +extern int apm_get_events (int fd, int timeout, apm_event_t * events, int n); +extern int apm_suspend (int fd); +extern int apm_standby (int fd); +extern int apm_set_ignore (int fd, int mode); +extern unsigned int apm_last_error (int fd); +extern const char *apm_error_name (unsigned int err); +extern int apm_reject (int fd); +extern const char *apm_event_name (apm_event_t event); +extern const char *apm_time (time_t t); +extern const char *apm_delta_time (time_t then, time_t now); +extern const char *apm_time_nosec (time_t t); #define SUSPEND 0 #define STANDBY 1 @@ -79,4 +79,4 @@ extern const char *apm_time_nosec(time_t t); #define APM_REJECT_ENABLED #endif -#endif /* __APM_H__ */ +#endif /* __APM_H__ */ diff --git a/battstat/apmlib/apmlib.c b/battstat/apmlib/apmlib.c index e15bb541..d7125f74 100644 --- a/battstat/apmlib/apmlib.c +++ b/battstat/apmlib/apmlib.c @@ -37,121 +37,123 @@ * Otherwise, return 1 if no support exists, or 2 if it is the wrong * version. *NOTE* The sense of the return value is not intuitive. */ -int apm_exists(void) +int +apm_exists (void) { apm_info i; - if (access(APM_PROC, R_OK)) - return 1; - return apm_read(&i); + if (access (APM_PROC, R_OK)) + return 1; + return apm_read (&i); } /* Read information from /proc/apm. Return 0 on success, 1 if APM not * installed, 2 if APM installed, but old version. */ -int apm_read(apm_info * i) +int +apm_read (apm_info * i) { FILE *str; char units[10]; char buffer[100]; int retcode = 0; - if (!(str = fopen(APM_PROC, "r"))) - return 1; + if (!(str = fopen (APM_PROC, "r"))) + return 1; - if (fgets(buffer, sizeof(buffer) - 1, str) == NULL) - printf("fgets error\n"); + if (fgets (buffer, sizeof (buffer) - 1, str) == NULL) + printf ("fgets error\n"); - buffer[sizeof(buffer) - 1] = '\0'; + buffer[sizeof (buffer) - 1] = '\0'; /* Should check for other driver versions; driver 1.9 (and some * others) uses this format, which doesn't expose # batteries. */ - sscanf(buffer, "%s %d.%d %hx %hx %hx %hx %d%% %d %s\n", - (char *) i->driver_version, - &i->apm_version_major, - &i->apm_version_minor, - &i->apm_flags, - &i->ac_line_status, - &i->battery_status, - &i->battery_flags, - &i->battery_percentage, - &i->battery_time, - units); - i->using_minutes = !strncmp(units, "min", 3) ? 1 : 0; + sscanf (buffer, "%s %d.%d %hx %hx %hx %hx %d%% %d %s\n", + (char *) i->driver_version, + &i->apm_version_major, + &i->apm_version_minor, + &i->apm_flags, + &i->ac_line_status, + &i->battery_status, + &i->battery_flags, + &i->battery_percentage, + &i->battery_time, + units); + i->using_minutes = !strncmp (units, "min", 3) ? 1 : 0; if (i->driver_version[0] == 'B') - { /* old style. argh. */ + { /* old style. argh. */ #if !BACKWARD_COMPAT - retcode = 2; + retcode = 2; #else - strcpy((char *) i->driver_version, "pre-0.7"); - i->apm_version_major = 0; - i->apm_version_minor = 0; - i->apm_flags = 0; - i->ac_line_status = 0xff; - i->battery_status = 0xff; - i->battery_flags = 0xff; - i->battery_percentage = -1; - i->battery_time = -1; - i->using_minutes = 1; - - sscanf(buffer, "BIOS version: %d.%d", - &i->apm_version_major, &i->apm_version_minor); - - if (fgets(buffer, sizeof(buffer) - 1, str) == NULL) - printf("fgets error\n"); - - sscanf(buffer, "Flags: 0x%02hx", &i->apm_flags); - if (i->apm_flags & APM_32_BIT_SUPPORT) - { - if (fgets(buffer, sizeof(buffer) - 1, str) == NULL) - printf("fgets error\n"); - - if (fgets(buffer, sizeof(buffer) - 1, str) == NULL) - printf("fgets error\n"); - - if (buffer[0] != 'P') - { - if (!strncmp(buffer + 4, "off line", 8)) - i->ac_line_status = 0; - else if (!strncmp(buffer + 4, "on line", 7)) - i->ac_line_status = 1; - else if (!strncmp(buffer + 4, "on back", 7)) - i->ac_line_status = 2; - - if (fgets(buffer, sizeof(buffer) - 1, str) == NULL) - printf("fgets error\n"); - - if (!strncmp(buffer + 16, "high", 4)) - i->battery_status = 0; - else if (!strncmp(buffer + 16, "low", 3)) - i->battery_status = 1; - else if (!strncmp(buffer + 16, "crit", 4)) - i->battery_status = 2; - else if (!strncmp(buffer + 16, "charg", 5)) - i->battery_status = 3; - - if (fgets(buffer, sizeof(buffer) - 1, str) == NULL) - printf("fgets error\n"); - - if (strncmp(buffer + 14, "unknown", 7)) - i->battery_percentage = atoi(buffer + 14); - if (i->apm_version_major >= 1 && i->apm_version_minor >= 1) - { - if (fgets(buffer, sizeof(buffer) - 1, str) == NULL) - printf("fgets error\n"); - - sscanf(buffer, "Battery flag: 0x%02hx", &i->battery_flags); - - if (fgets(buffer, sizeof(buffer) - 1, str) == NULL) - printf("fgets error\n"); - - if (strncmp(buffer + 14, "unknown", 7)) - i->battery_time = atoi(buffer + 14); - } - } - } + strcpy ((char *) i->driver_version, "pre-0.7"); + i->apm_version_major = 0; + i->apm_version_minor = 0; + i->apm_flags = 0; + i->ac_line_status = 0xff; + i->battery_status = 0xff; + i->battery_flags = 0xff; + i->battery_percentage = -1; + i->battery_time = -1; + i->using_minutes = 1; + + sscanf (buffer, "BIOS version: %d.%d", + &i->apm_version_major, &i->apm_version_minor); + + if (fgets (buffer, sizeof (buffer) - 1, str) == NULL) + printf ("fgets error\n"); + + sscanf (buffer, "Flags: 0x%02hx", &i->apm_flags); + if (i->apm_flags & APM_32_BIT_SUPPORT) + { + if (fgets (buffer, sizeof (buffer) - 1, str) == NULL) + printf ("fgets error\n"); + + if (fgets (buffer, sizeof (buffer) - 1, str) == NULL) + printf ("fgets error\n"); + + if (buffer[0] != 'P') + { + if (!strncmp (buffer + 4, "off line", 8)) + i->ac_line_status = 0; + else if (!strncmp (buffer + 4, "on line", 7)) + i->ac_line_status = 1; + else if (!strncmp (buffer + 4, "on back", 7)) + i->ac_line_status = 2; + + if (fgets (buffer, sizeof (buffer) - 1, str) == NULL) + printf ("fgets error\n"); + + if (!strncmp (buffer + 16, "high", 4)) + i->battery_status = 0; + else if (!strncmp (buffer + 16, "low", 3)) + i->battery_status = 1; + else if (!strncmp (buffer + 16, "crit", 4)) + i->battery_status = 2; + else if (!strncmp (buffer + 16, "charg", 5)) + i->battery_status = 3; + + if (fgets (buffer, sizeof (buffer) - 1, str) == NULL) + printf ("fgets error\n"); + + if (strncmp (buffer + 14, "unknown", 7)) + i->battery_percentage = atoi (buffer + 14); + if (i->apm_version_major >= 1 && i->apm_version_minor >= 1) + { + if (fgets (buffer, sizeof (buffer) - 1, str) == NULL) + printf ("fgets error\n"); + + sscanf (buffer, "Battery flag: 0x%02hx", &i->battery_flags); + + if (fgets (buffer, sizeof (buffer) - 1, str) == NULL) + printf ("fgets error\n"); + + if (strncmp (buffer + 14, "unknown", 7)) + i->battery_time = atoi (buffer + 14); + } + } + } #endif } @@ -159,15 +161,15 @@ int apm_read(apm_info * i) * set to 0xff (==255) instead of -1. */ if (i->battery_percentage > 100) - i->battery_percentage = -1; + i->battery_percentage = -1; - fclose(str); + fclose (str); return retcode; } /* Lookup the device number for the apm_bios device. */ -dev_t apm_dev(void) +dev_t apm_dev (void) { FILE *str; static int cached = -1; @@ -176,32 +178,32 @@ dev_t apm_dev(void) apm_info i; if (cached >= 0) - return cached; + return cached; - if (access(APM_PROC, R_OK) || apm_read(&i) == 1) - return cached = -1; + if (access (APM_PROC, R_OK) || apm_read (&i) == 1) + return cached = -1; if (i.driver_version[0] == '1') - return cached = makedev(10, 134); + return cached = makedev (10, 134); - if (!(str = fopen(APM_DEV, "r"))) - return -1; - while (fgets(buf, sizeof(buf) - 1, str)) + if (!(str = fopen (APM_DEV, "r"))) + return -1; + while (fgets (buf, sizeof (buf) - 1, str)) { - buf[sizeof(buf) - 1] = '\0'; - for (pt = buf; *pt && isspace(*pt); ++pt); /* skip leading spaces */ - for (; *pt && !isspace(*pt); ++pt); /* find next space */ - if (isspace(*pt)) - { - *pt++ = '\0'; - pt[strlen(pt) - 1] = '\0'; /* get rid of newline */ - if (!strcmp(pt, APM_NAME)) - { - fclose(str); - return cached = makedev(atoi(buf), 0); - } - } + buf[sizeof (buf) - 1] = '\0'; + for (pt = buf; *pt && isspace (*pt); ++pt); /* skip leading spaces */ + for (; *pt && !isspace (*pt); ++pt); /* find next space */ + if (isspace (*pt)) + { + *pt++ = '\0'; + pt[strlen (pt) - 1] = '\0'; /* get rid of newline */ + if (!strcmp (pt, APM_NAME)) + { + fclose (str); + return cached = makedev (atoi (buf), 0); + } + } } - fclose(str); + fclose (str); return cached = -1; } @@ -211,54 +213,55 @@ dev_t apm_dev(void) * instead of /tmp? * * apenwarr 2001/05/11: just throw out the weird temporary device file stuff. - * It was only for ancient kernel versions anyway. + * It was only for ancient kernel versions anyway. */ -int apm_open(void) +int +apm_open (void) { int fd; apm_info i; - if (access(APM_PROC, R_OK) || apm_read(&i) == 1) - return -1; + if (access (APM_PROC, R_OK) || apm_read (&i) == 1) + return -1; if (i.driver_version[0] >= '1') { - if ((fd = open(APM_DEVICE, O_RDWR)) < 0) - { - /* Try to create it. This is reasonable - * for backward compatibility. - */ - if (mknod(APM_DEVICE, S_IFCHR | S_IRUSR | S_IWUSR, apm_dev())) - { - unlink(APM_DEVICE); - return -1; - } - fd = open(APM_DEVICE, O_RDWR); - } - - return fd; + if ((fd = open (APM_DEVICE, O_RDWR)) < 0) + { + /* Try to create it. This is reasonable + * for backward compatibility. + */ + if (mknod (APM_DEVICE, S_IFCHR | S_IRUSR | S_IWUSR, apm_dev ())) + { + unlink (APM_DEVICE); + return -1; + } + fd = open (APM_DEVICE, O_RDWR); + } + return fd; } - return -1; } /* Given a file descriptor for the apm_bios device, close it. */ -int apm_close(int fd) +int +apm_close (int fd) { - return close(fd); + return close (fd); } /* Given a file descriptor for the apm_bios device, this routine will wait * timeout seconds for APM events. Up to n events will be placed in the * events queue. The return code will indicate the number of events - * stored. Since this routine uses select(2), it will return if an + * stored. Since this routine uses select (2), it will return if an * unblocked signal is caught. A timeout < 0 means to block indefinately. * * Note that if you read a request to standby or to suspend, the kernel - * will be waiting for you to respond to it with a call to apm_suspend() - * or to apm_standby() ! + * will be waiting for you to respond to it with a call to apm_suspend () + * or to apm_standby () ! */ -int apm_get_events(int fd, int timeout, apm_event_t * events, int n) +int +apm_get_events (int fd, int timeout, apm_event_t * events, int n) { int retcode; fd_set fds; @@ -267,110 +270,116 @@ int apm_get_events(int fd, int timeout, apm_event_t * events, int n) t.tv_sec = timeout; t.tv_usec = 0; - FD_ZERO(&fds); - FD_SET(fd, &fds); - retcode = select(fd + 1, &fds, NULL, NULL, timeout < 0 ? NULL : &t); + FD_ZERO (&fds); + FD_SET (fd, &fds); + retcode = select (fd + 1, &fds, NULL, NULL, timeout < 0 ? NULL : &t); if (retcode <= 0) - return 0; - return read(fd, events, n * sizeof(apm_event_t)) / sizeof(apm_event_t); + return 0; + return read (fd, events, n * sizeof (apm_event_t)) / sizeof (apm_event_t); } /* Try to set the Power State to Suspend. */ -int apm_suspend(int fd) +int +apm_suspend (int fd) { - sync(); - return ioctl(fd, APM_IOC_SUSPEND, NULL); + sync (); + return ioctl (fd, APM_IOC_SUSPEND, NULL); } /* Try to set the Power State to Standby. */ -int apm_standby(int fd) +int +apm_standby (int fd) { - sync(); - return ioctl(fd, APM_IOC_STANDBY, NULL); + sync (); + return ioctl (fd, APM_IOC_STANDBY, NULL); } /* Return the last error code generated by the kernel APM driver */ -unsigned int apm_last_error( int fd ) +unsigned int +apm_last_error ( int fd ) { int err = 0; #ifdef APM_IOC_LAST_ERROR int ierr = 0; - if ( (ierr = ioctl( fd, APM_IOC_LAST_ERROR, &err)) ) - return ierr; + if ((ierr = ioctl (fd, APM_IOC_LAST_ERROR, &err))) + return ierr; #endif return err; } /* Define lookup table for error messages */ typedef struct lookup_t { - int key; - char * msg; + int key; + char* msg; } lookup_t; /* APM error messages, arranged by error code */ static const lookup_t error_table[] = { -/* N/A { APM_SUCCESS, "Operation succeeded" }, */ - { APM_DISABLED, "Power management disabled" }, - { APM_CONNECTED, "Real mode interface already connected" }, - { APM_NOT_CONNECTED, "Interface not connected" }, - { APM_16_CONNECTED, "16 bit interface already connected" }, -/* N/A { APM_16_UNSUPPORTED, "16 bit interface not supported" }, */ - { APM_32_CONNECTED, "32 bit interface already connected" }, - { APM_32_UNSUPPORTED, "32 bit interface not supported" }, - { APM_BAD_DEVICE, "Unrecognized device ID" }, - { APM_BAD_PARAM, "Parameter out of range" }, - { APM_NOT_ENGAGED, "Interface not engaged" }, +/* N/A { APM_SUCCESS, "Operation succeeded" }, */ + { APM_DISABLED, "Power management disabled" }, + { APM_CONNECTED, "Real mode interface already connected" }, + { APM_NOT_CONNECTED, "Interface not connected" }, + { APM_16_CONNECTED, "16 bit interface already connected" }, +/* N/A { APM_16_UNSUPPORTED, "16 bit interface not supported" }, */ + { APM_32_CONNECTED, "32 bit interface already connected" }, + { APM_32_UNSUPPORTED, "32 bit interface not supported" }, + { APM_BAD_DEVICE, "Unrecognized device ID" }, + { APM_BAD_PARAM, "Parameter out of range" }, + { APM_NOT_ENGAGED, "Interface not engaged" }, #ifdef APM_BAD_FUNCTION - { APM_BAD_FUNCTION, "Function not supported" }, + { APM_BAD_FUNCTION, "Function not supported" }, #endif #ifdef APM_RESUME_DISABLED - { APM_RESUME_DISABLED, "Resume timer disabled" }, + { APM_RESUME_DISABLED, "Resume timer disabled" }, #endif - { APM_BAD_STATE, "Unable to enter requested state" }, -/* N/A { APM_NO_EVENTS, "No events pending" }, */ - { APM_NOT_PRESENT, "No APM present" } + { APM_BAD_STATE, "Unable to enter requested state" }, +/* N/A { APM_NO_EVENTS, "No events pending" }, */ + { APM_NOT_PRESENT, "No APM present" } }; -#define ERROR_COUNT (sizeof(error_table)/sizeof(lookup_t)) +#define ERROR_COUNT (sizeof(error_table)/sizeof(lookup_t)) /* Return character string describing error messages from APM kernel */ -const char *apm_error_name( unsigned int err ) +const char * +apm_error_name (unsigned int err) { int i; - for(i=0; i<ERROR_COUNT; i++) - if(err == error_table[i].key) return(error_table[i].msg); + for (i=0; i<ERROR_COUNT; i++) + if (err == error_table[i].key) return (error_table[i].msg); return "Unknown error"; } -int apm_reject( int fd ) +int +apm_reject (int fd) { #ifdef APM_IOC_REJECT - if ( ioctl( fd, APM_IOC_REJECT, NULL ) ) - return apm_last_error( fd ); + if (ioctl fd, APM_IOC_REJECT, NULL )) + return apm_last_error (fd); else #endif - return 0; + return 0; } -#ifdef APM_IOC_IGNORE /* detect kernel support of IGNORE/NOIGNORE functions */ -int apm_set_ignore(int fd, int mode) +#ifdef APM_IOC_IGNORE /* detect kernel support of IGNORE/NOIGNORE functions */ +int +apm_set_ignore (int fd, int mode) /* Ignore Standby. */ { if (mode == IGNORE) { - printf("Telling kernel to ignore system standby/suspend mode\n"); - return ioctl(fd, APM_IOC_IGNORE, NULL); + printf ("Telling kernel to ignore system standby/suspend mode\n"); + return ioctl (fd, APM_IOC_IGNORE, NULL); } else { - printf("Telling kernel not to ignore system standby/suspend mode\n"); - return ioctl(fd, APM_IOC_NOIGNORE, NULL); + printf ("Telling kernel not to ignore system standby/suspend mode\n"); + return ioctl (fd, APM_IOC_NOIGNORE, NULL); } - printf("NOTE: User-generated suspend/standby requests are not ignored\n"); + printf ("NOTE: User-generated suspend/standby requests are not ignored\n"); } #endif @@ -381,35 +390,36 @@ int apm_set_ignore(int fd, int mode) * * Updated to APM BIOS 1.2 spec (February 1996). Available on-line. */ -const char *apm_event_name(apm_event_t event) +const char * +apm_event_name (apm_event_t event) { switch (event) { case APM_SYS_STANDBY: - return "System Standby Request"; + return "System Standby Request"; case APM_SYS_SUSPEND: - return "System Suspend Request"; + return "System Suspend Request"; case APM_NORMAL_RESUME: - return "Normal Resume System"; + return "Normal Resume System"; case APM_CRITICAL_RESUME: - return "Critical Resume System"; + return "Critical Resume System"; case APM_LOW_BATTERY: - return "Battery Low"; + return "Battery Low"; case APM_POWER_STATUS_CHANGE: - return "Power Status Change"; + return "Power Status Change"; case APM_UPDATE_TIME: - return "Update Time"; + return "Update Time"; case APM_CRITICAL_SUSPEND: - return "Critical Suspend"; + return "Critical Suspend"; case APM_USER_STANDBY: - return "User System Standby Request"; + return "User System Standby Request"; case APM_USER_SUSPEND: - return "User System Suspend Request"; + return "User System Suspend Request"; case APM_STANDBY_RESUME: - return "System Standby Resume"; + return "System Standby Resume"; #ifdef APM_CAPABILITY_CHANGE case APM_CAPABILITY_CHANGE: - return "Capability Change"; + return "Capability Change"; #endif } return "Unknown"; @@ -424,12 +434,14 @@ const char *apm_event_name(apm_event_t event) #define SEC_PER_HOUR (60*60) #define SEC_PER_MIN (60) -const char *apm_delta_time(time_t then, time_t now) +const char * +apm_delta_time (time_t then, time_t now) { - return apm_time(now - then); + return apm_time (now - then); } -const char *apm_time(time_t t) +const char * +apm_time (time_t t) { static char buffer[128]; unsigned long s, m, h, d; @@ -443,18 +455,19 @@ const char *apm_time(time_t t) s = t; if (d) - sprintf(buffer, "%lu day%s, %02lu:%02lu:%02lu", - d, d > 1 ? "s" : "", h, m, s); + sprintf (buffer, "%lu day%s, %02lu:%02lu:%02lu", + d, d > 1 ? "s" : "", h, m, s); else - sprintf(buffer, "%02lu:%02lu:%02lu", h, m, s); + sprintf (buffer, "%02lu:%02lu:%02lu", h, m, s); if (t == -1) - sprintf(buffer, "unknown"); + sprintf (buffer, "unknown"); return buffer; } -const char *apm_time_nosec(time_t t) +const char * +apm_time_nosec (time_t t) { static char buffer[128]; unsigned long s, m, h, d; @@ -468,16 +481,16 @@ const char *apm_time_nosec(time_t t) s = t; if (s > 30) - ++m; + ++m; if (d) - sprintf(buffer, "%lu day%s, %lu:%02lu", - d, d > 1 ? "s" : "", h, m); + sprintf (buffer, "%lu day%s, %lu:%02lu", + d, d > 1 ? "s" : "", h, m); else - sprintf(buffer, "%lu:%02lu", h, m); + sprintf (buffer, "%lu:%02lu", h, m); if (t == -1) - sprintf(buffer, "unknown"); + sprintf (buffer, "unknown"); return buffer; } |