--- ../hdparm-3.9.orig/hdparm.c	Sun Feb 11 23:08:08 2001
+++ hdparm.c	Sun Feb 11 23:52:06 2001
@@ -78,10 +78,11 @@
 static unsigned long set_doorlock = 0, get_doorlock = 0, doorlock = 0;
 static unsigned long set_seagate  = 0, get_seagate  = 0;
 static unsigned long set_standbynow = 0, get_standbynow = 0;
 static unsigned long set_sleepnow   = 0, get_sleepnow   = 0;
 static unsigned long get_powermode  = 0;
+static unsigned long set_apmmode = 0, get_apmmode= 0, apmmode = 0;
 #endif
 #ifdef CDROM_SELECT_SPEED
 static unsigned long set_cdromspeed = 0, cdromspeed = 0;
 #endif /* CDROM_SELECT_SPEED */
 #ifdef HDIO_SET_32BIT
@@ -119,10 +120,11 @@
 
 static void dump_identity (struct hd_driveid *id)
 {
 	int i;
 	char pmodes[64] = {0,}, dmodes[128]={0,};
+	unsigned short int *id_regs=(void*)id;
 
 	printf("\n Model=%.40s, FwRev=%.8s, SerialNo=%.20s", 
 		id->model, id->fw_rev, id->serial_no);
 	printf("\n Config={");
 	for (i=0; i<=15; i++) {
@@ -223,10 +225,21 @@
 	}
 	if ((id->capability&1) && (id->field_valid&2))
 		printf(", tDMA={min:%d,rec:%d}", id->eide_dma_min, id->eide_dma_time);
 	printf("\n PIO modes: %s", pmodes);
 	printf("\n DMA modes: %s\n", dmodes);
+	
+	printf("\nAdvancedPowerManagement=%s",YN(id_regs[83]&8));
+	if (id_regs[83]&8) {
+	if (!(id_regs[86]&8))
+		printf(": disabled (255)");
+	else if ((id_regs[91]&0xFF00)!=0x4000)
+		printf(": unknown setting");
+	else
+		printf(": mode=0x%02X (%d)",id_regs[91]&0xFF,id_regs[91]&0xFF);
+	}
+	printf("\n");
 }
 
 void flush_buffer_cache (int fd)
 {
 	fsync (fd);				/* flush buffers */
@@ -791,10 +804,30 @@
 			on_off(lookahead);
 		}
 		if (ioctl(fd, HDIO_DRIVE_CMD, &args))
 			perror(" HDIO_DRIVE_CMD(setreadahead) failed");
 	}
+	if (set_apmmode) {
+		unsigned char args[4] = {WIN_SETFEATURES,0,0,0};
+		no_scsi();
+		if (apmmode<1) apmmode=1;
+		if (apmmode>255) apmmode=255;
+		if (get_apmmode) 
+			printf(" setting Advanced Power Management level to");
+			if (apmmode==255) { 
+			/* disable Advanced Power Management */
+				args[2] = 0x85; /* feature register */ 
+				if (get_apmmode) printf(" disabled\n");
+			} else {
+				/* set Advanced Power Management mode */
+				args[2] = 0x05; /* feature register */  
+				args[1] = apmmode; /* sector count register */
+				if (get_apmmode) printf(" 0x%02lX (%ld)\n",apmmode,apmmode);
+			} 
+			if (ioctl(fd, HDIO_DRIVE_CMD, &args))
+				perror(" HDIO_DRIVE_CMD failed");
+	}
 #ifdef CDROM_SELECT_SPEED
 	if (set_cdromspeed) {
 		printf ("setting cdrom speed to %ld\n", cdromspeed);
 		if (ioctl (fd, CDROM_SELECT_SPEED, cdromspeed))
 			perror(" CDROM_SELECT_SPEED failed");
@@ -1071,10 +1104,11 @@
 	fprintf(stderr,"Options:\n"
 	" -a   get/set fs readahead\n"
 #ifdef HDIO_DRIVE_CMD
 	" -A   set drive read-lookahead flag (0/1)\n"
 #endif
+	" -b   get Advanced Power Management setting (1-255)\n"
 #ifdef HDIO_SET_32BIT
 	" -c   get/set IDE 32-bit IO setting\n"
 #endif
 #ifdef HDIO_DRIVE_CMD
 	" -C   check IDE power mode status\n"
@@ -1434,10 +1468,16 @@
 #endif /* HDIO_SCAN_HWIF */
 					case 'a':
 						get_readahead = noisy;
 						noisy = 1;
 						GET_NUMBER(set_readahead,readahead);
+						break;
+					case 'b':
+						noisy = 1;
+						GET_NUMBER(set_apmmode,apmmode);
+						if (!set_apmmode)
+						printf("-b: missing value (1-255)\n");
 						break;
 					case 't':
 						do_timings = 1;
 						do_flush = 1;
 						break;