thodg/cgminer

diff --git a/api.c b/api.c
index a0c2e56..cfdd098 100644
--- a/api.c
+++ b/api.c
@@ -158,7 +158,7 @@ static const char SEPARATOR = '|';
 #define SEPSTR "|"
 static const char GPUSEP = ',';
 
-static const char *APIVERSION = "1.10";
+static const char *APIVERSION = "1.11";
 static const char *DEAD = "Dead";
 static const char *SICK = "Sick";
 static const char *NOSTART = "NoStart";
@@ -876,7 +876,7 @@ static void pgastatus(int pga, bool isjson)
 
 		cgpu->utility = cgpu->accepted / ( total_secs ? total_secs : 1 ) * 60;
 
-		if (cgpu->deven != DEV_DISABLED)
+		if (cgpu->deven == DEV_ENABLED)
 			enabled = (char *)YES;
 		else
 			enabled = (char *)NO;
@@ -1089,7 +1089,7 @@ static void pgaenable(__maybe_unused SOCKETTYPE c, char *param, bool isjson)
 
 	struct cgpu_info *cgpu = devices[dev];
 
-	if (cgpu->deven != DEV_DISABLED) {
+	if (cgpu->deven == DEV_ENABLED) {
 		strcpy(io_buffer, message(MSG_PGALRENA, id, NULL, isjson));
 		return;
 	}
@@ -1140,12 +1140,12 @@ static void pgadisable(__maybe_unused SOCKETTYPE c, char *param, bool isjson)
 
 	struct cgpu_info *cgpu = devices[dev];
 
-	if (cgpu->deven == DEV_DISABLED) {
+	if (cgpu->deven != DEV_ENABLED) {
 		strcpy(io_buffer, message(MSG_PGALRDIS, id, NULL, isjson));
 		return;
 	}
 
-	cgpu->deven = DEV_DISABLED;
+	cgpu->deven = DEV_IDLE;
 
 	strcpy(io_buffer, message(MSG_PGADIS, id, NULL, isjson));
 }
diff --git a/cgminer.c b/cgminer.c
index 4e9e26b..5542ed6 100644
--- a/cgminer.c
+++ b/cgminer.c
@@ -3893,7 +3893,7 @@ void *miner_thread(void *userdata)
 				tv_lastupdate = tv_end;
 			}
 
-			if (unlikely(mythr->pause || cgpu->deven != DEV_ENABLED)) {
+			if (unlikely(mythr->pause || cgpu->deven == DEV_DISABLED || cgpu->deven == DEV_RECOVER)) {
 				applog(LOG_WARNING, "Thread %d being disabled", thr_id);
 disabled:
 				mythr->rolling = mythr->cgpu->rolling = 0;
@@ -5130,6 +5130,9 @@ begin_bench:
 				quit(1, "thread %d create failed", thr->id);
 
 			cgpu->thread = thr;
+			
+			/* delay each start by 100ms */
+			usleep(100000);
 		}
 	}
 
diff --git a/driver-bitforce.c b/driver-bitforce.c
index 13a7a9d..e9745e6 100644
--- a/driver-bitforce.c
+++ b/driver-bitforce.c
@@ -264,17 +264,41 @@ static bool bitforce_thread_prepare(struct thr_info *thr)
 	return true;
 }
 
-static uint64_t bitforce_scanhash(struct thr_info *thr, struct work *work, uint64_t __maybe_unused max_nonce)
+static uint64_t bitforce_get_temp(struct cgpu_info *bitforce)
 {
-	struct cgpu_info *bitforce = thr->cgpu;
 	int fdDev = bitforce->device_fd;
+	char pdevbuf[0x100];
+	char *s;
+
+	BFwrite(fdDev, "ZLX", 3);
+	BFgets(pdevbuf, sizeof(pdevbuf), fdDev);
+	if (unlikely(!pdevbuf[0])) {
+		applog(LOG_ERR, "Error reading from BitForce (ZKX)");
+		return 0;
+	}
+	if ((!strncasecmp(pdevbuf, "TEMP", 4)) && (s = strchr(pdevbuf + 4, ':'))) {
+		float temp = strtof(s + 1, NULL);
+		if (temp > 0) {
+			bitforce->temp = temp;
+			if (temp > bitforce->cutofftemp) {
+				applog(LOG_WARNING, "Hit thermal cutoff limit on %s %d, disabling!", bitforce->api->name, bitforce->device_id);
+				bitforce->deven = DEV_RECOVER;
 
+				bitforce->device_last_not_well = time(NULL);
+				bitforce->device_not_well_reason = REASON_DEV_THERMAL_CUTOFF;
+				bitforce->dev_thermal_cutoff_count++;
+			}
+		}
+	}
+}
+
+
+static uint64_t bitforce_send_work(struct cgpu_info *bitforce, struct work *work)
+{
+	int fdDev = bitforce->device_fd;
 	char pdevbuf[0x100];
 	unsigned char ob[61] = ">>>>>>>>12345678901234567890123456789012123456789012>>>>>>>>";
-	int i;
-	char *pnoncebuf;
 	char *s;
-	uint32_t nonce;
 
 	BFwrite(fdDev, "ZDX", 3);
 	BFgets(pdevbuf, sizeof(pdevbuf), fdDev);
@@ -305,30 +329,19 @@ static uint64_t bitforce_scanhash(struct thr_info *thr, struct work *work, uint6
 		applog(LOG_ERR, "BitForce block data reports: %s", pdevbuf);
 		return 0;
 	}
+}
 
-	BFwrite(fdDev, "ZLX", 3);
-	BFgets(pdevbuf, sizeof(pdevbuf), fdDev);
-	if (unlikely(!pdevbuf[0])) {
-		applog(LOG_ERR, "Error reading from BitForce (ZKX)");
-		return 0;
-	}
-	if ((!strncasecmp(pdevbuf, "TEMP", 4)) && (s = strchr(pdevbuf + 4, ':'))) {
-		float temp = strtof(s + 1, NULL);
-		if (temp > 0) {
-			bitforce->temp = temp;
-			if (temp > bitforce->cutofftemp) {
-				applog(LOG_WARNING, "Hit thermal cutoff limit on %s %d, disabling!", bitforce->api->name, bitforce->device_id);
-				bitforce->deven = DEV_RECOVER;
+static uint64_t bitforce_get_result(struct thr_info *thr, struct work *work)
+{
+	struct cgpu_info *bitforce = thr->cgpu;
+	int fdDev = bitforce->device_fd;
 
-				bitforce->device_last_not_well = time(NULL);
-				bitforce->device_not_well_reason = REASON_DEV_THERMAL_CUTOFF;
-				bitforce->dev_thermal_cutoff_count++;
-			}
-		}
-	}
+	char pdevbuf[0x100];
+	int i;
+	char *pnoncebuf;
+	uint32_t nonce;
 
-	usleep(4500000);
-	i = 4500;
+	i = 5000;
 	while (i < 10000) {
 		BFwrite(fdDev, "ZFX", 3);
 		BFgets(pdevbuf, sizeof(pdevbuf), fdDev);
@@ -342,15 +355,17 @@ static uint64_t bitforce_scanhash(struct thr_info *thr, struct work *work, uint6
 		i += 10;
 	}
 
-    if (i >= 10000) {
-	  applog(LOG_DEBUG, "BitForce took longer than 10s");
-      return 0;
-    }
+  if (i >= 10000) {
+    applog(LOG_DEBUG, "BitForce took longer than 10s");
+    return 0;
+  }
 
 	applog(LOG_DEBUG, "BitForce waited %dms until %s\n", i, pdevbuf);
 	work->blk.nonce = 0xffffffff;
-	if (pdevbuf[2] == '-')
-		return 0xffffffff;
+	if (pdevbuf[2] == '-') 
+		return 0xffffffff;   /* No valid nonce found */
+	else if (pdevbuf[0] == 'I')
+		return 0x1;          /* Device idle */
 	else if (strncasecmp(pdevbuf, "NONCE-FOUND", 11)) {
 		applog(LOG_ERR, "BitForce result reports: %s", pdevbuf);
 		return 0;
@@ -363,14 +378,37 @@ static uint64_t bitforce_scanhash(struct thr_info *thr, struct work *work, uint6
 #ifndef __BIG_ENDIAN__
 		nonce = swab32(nonce);
 #endif
-
 		submit_nonce(thr, work, nonce);
 		if (pnoncebuf[8] != ',')
 			break;
 		pnoncebuf += 9;
 	}
+	
+	return 0xffffffff;  
+}
+
+static uint64_t bitforce_scanhash(struct thr_info *thr, struct work *work, uint64_t __maybe_unused max_nonce)
+{
+	struct cgpu_info *bitforce = thr->cgpu;
+  
+  if (bitforce->deven == DEV_ENABLED) {
+    if (!bitforce_send_work(bitforce, work))
+      return 0;
+  }
 
-	return 0xffffffff;
+  if (!bitforce_get_temp(bitforce))
+    return 0;
+	
+	usleep(5000000);
+  
+//  if (bitforce->deven == DEV_IDLE)
+//		applog(LOG_ERR, "BitForce idle mode");
+
+  if (bitforce->deven == DEV_ENABLED)
+    return bitforce_get_result(thr, work);
+  else
+    return 0x1;
+    
 }
 
 struct device_api bitforce_api = {
diff --git a/miner.h b/miner.h
index 186eb9f..8d4ea1a 100644
--- a/miner.h
+++ b/miner.h
@@ -250,6 +250,7 @@ enum dev_enable {
 	DEV_ENABLED,
 	DEV_DISABLED,
 	DEV_RECOVER,
+	DEV_IDLE,
 };
 
 enum cl_kernels {