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-rw-r--r--battstat/apmlib/apmlib.c439
1 files changed, 226 insertions, 213 deletions
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;
}
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