working version

diskwatch.c

@@ -62,6 +62,8 @@ struct diskwatch {
 
 static struct diskwatch diskwatch_glob;
 
+static int diskwatch_check_standby(struct disk_entry *entry);
+
 static int lcdpage_diskwatch(struct lcddev *lcd, int event, void *privdata)
 {
 	static struct disk_entry *entry;
@@ -104,6 +106,8 @@ static int lcdpage_diskwatch(struct lcddev *lcd, int event, void *privdata)
 
 	snprintf(line1, sizeof(line1), "DISK(%s):", entry->device);
 	if (entry->flags & F_PRESENT) {
+		diskwatch_check_standby(entry);
+
 		if (entry->flags & F_STANDBY) {
 			snprintf(line2, sizeof(line2), "STANDBY");
 		} else {
@@ -125,7 +129,64 @@ static int lcdpage_diskwatch(struct lcddev *lcd, int event, void *privdata)
 	return 1000;
 }
 
-static int diskwatch_check_cb(int timerid, void *privdata)
+static int diskwatch_check_standby(struct disk_entry *entry)
+{
+	if (!(entry->flags & F_PRESENT))
+		return 0;
+
+	int fd = open(entry->device, O_RDONLY | O_NONBLOCK);
+	if (fd < 0) {
+		log_print(LOG_ERROR, "%s(): failed to open %s", __FUNCTION__, entry->device);
+		return -1;
+	}
+
+	unsigned char args[4] = { ATA_OP_CHECKPOWERMODE1, 0, 0, 0 };
+	if (do_drive_cmd(fd, args)) {
+		args[0] = ATA_OP_CHECKPOWERMODE2;
+		if (do_drive_cmd(fd, args)) {
+			log_print(LOG_WARN, "%s: do_drive_cmd(ATA_OP_CHECKPOWERMODEx) failed on %s", __FUNCTION__, entry->device);
+			close(fd);
+			return -1;
+		}
+	}
+
+	time_t now = time(NULL);
+
+	/* args[2]:
+	 * 0x00 - standby
+	 * 0x40 - NVcache_spindown
+	 * 0x41 - NVcache_spinup
+	 * 0x80 - idle
+	 * 0xFF - active/idle
+	 */
+	/* drive is in standby */
+	if (args[2] == 0x00) {
+		entry->flags |= F_STANDBY;
+
+	/* drive was in standby, and is now active */
+	} else if (entry->flags & F_STANDBY) {
+		entry->flags &= ~(F_STANDBY);
+		entry->standby_timeout = now + entry->timeout_sec;
+
+	/* drive is active, and timeout is up */
+	} else if (now >= entry->standby_timeout) {
+		unsigned char args[4] = { ATA_OP_STANDBYNOW1, 0, 0, 0};
+		if (do_drive_cmd(fd, args)) {
+			args[0] = ATA_OP_STANDBYNOW2;
+			if (do_drive_cmd(fd, args)) {
+				log_print(LOG_WARN, "%s: do_drive_cmd(ATA_OP_STANDBYNOWx) failed on %s", __FUNCTION__, entry->device);
+				close(fd);
+				return -1;
+			}
+		}
+		entry->flags |= F_STANDBY;
+	}
+
+	close(fd);
+	return 0;
+}
+
+static int diskwatch_check_stats(int timerid, void *privdata)
 {
 	struct diskwatch *dwatch = (struct diskwatch *)privdata;
 
@@ -189,6 +250,7 @@ static int diskwatch_check_cb(int timerid, void *privdata)
 			if (entry->sectors_rd == val[2] && entry->sectors_wr == val[6])
 				continue;
 
+			/* sector counts changed, disk is not in standby */
 			entry->flags &= ~(F_STANDBY);
 			entry->sectors_rd = val[2];
 			entry->sectors_wr = val[6];
@@ -199,56 +261,7 @@ static int diskwatch_check_cb(int timerid, void *privdata)
 	fclose(fp);
 
 	list_for_each_entry(entry, &dwatch->disk_list, list) {
-		if (!(entry->flags & F_PRESENT))
+		diskwatch_check_standby(entry);
-			continue;
-
-		int fd = open(entry->device, O_RDONLY | O_NONBLOCK);
-		if (fd < 0) {
-			log_print(LOG_ERROR, "%s(): failed to open %s", __FUNCTION__, entry->device);
-			continue;
-		}
-
-		unsigned char args[4] = { ATA_OP_CHECKPOWERMODE1, 0, 0, 0 };
-		if (do_drive_cmd(fd, args)) {
-			args[0] = ATA_OP_CHECKPOWERMODE2;
-			if (do_drive_cmd(fd, args)) {
-				log_print(LOG_WARN, "%s: do_drive_cmd(ATA_OP_CHECKPOWERMODEx) failed on %s", __FUNCTION__, entry->device);
-				close(fd);
-				continue;
-			}
-		}
-
-		/* args[2]:
-		 * 0x00 - standby
-		 * 0x40 - NVcache_spindown
-		 * 0x41 - NVcache_spinup
-		 * 0x80 - idle
-		 * 0xFF - active/idle
-		 */
-		/* drive is in standby */
-		if (args[2] == 0x00) {
-			entry->flags |= F_STANDBY;
-
-		/* drive was in standby, and is now active (without change in sector counts */
-		} else if (entry->flags & F_STANDBY) {
-			entry->flags &= ~(F_STANDBY);
-			entry->standby_timeout = now + entry->timeout_sec;
-
-		/* drive is active, and timeout is up */
-		} else if (now >= entry->standby_timeout) {
-			unsigned char args[4] = { ATA_OP_STANDBYNOW1, 0, 0, 0};
-			if (do_drive_cmd(fd, args)) {
-				args[0] = ATA_OP_STANDBYNOW2;
-				if (do_drive_cmd(fd, args)) {
-					log_print(LOG_WARN, "%s: do_drive_cmd(ATA_OP_STANDBYNOWx) failed on %s", __FUNCTION__, entry->device);
-					close(fd);
-					continue;
-				}
-			}
-			entry->flags |= F_STANDBY;
-		}
-
-		close(fd);
 	}
 
 	return 0;
@@ -312,11 +325,11 @@ int diskwatch_init(struct lcddev *lcd)
 	if (diskcount <= 0)
 		return 0;
 
-	diskwatch_check_cb(0, dwatch);
+	diskwatch_check_stats(0, dwatch);
 
 	int check_interval = 0;
 	config_get_int("diskwatch", "check_interval", &check_interval, 60);
-	dwatch->check_timeout = event_add_timeout_ms(check_interval * 1000, diskwatch_check_cb, 0, dwatch);
+	dwatch->check_timeout = event_add_timeout_ms(check_interval * 1000, diskwatch_check_stats, 0, dwatch);
 
 	dwatch->lcd = lcd;
 	if (dwatch->lcd != NULL) {

lcd.c

@@ -33,7 +33,7 @@
 #include "list.h"
 #include "logging.h"
 
-#define _LCD_DEBUG	1
+#define _LCD_DEBUG	0
 #define _LCD_DUMMY	1
 
 #define LCD_SCROLL_SPEED	750				/* 750ms */
@@ -582,9 +582,13 @@ static void lcd_pagecallback(struct lcddev *dev, int event)
 
 	int next;
 	do {
+#if (_LCD_DEBUG > 0)
 		log_print(LOG_DEBUG, "%s: cb(%p, 0x%x)", __FUNCTION__, dev->current_page, event);
+#endif
 		int retval = dev->current_page->callback(dev, event, dev->current_page->privdata);
+#if (_LCD_DEBUG > 0)
 		log_print(LOG_DEBUG, "%s: cb(%p, 0x%x) => 0x%x", __FUNCTION__, dev->current_page, event, retval);
+#endif
 
 		next = (retval == LCDPAGE_COMMAND_NEXT);
 		if (next) {