Stop using usleep().

Use nanosleep() on Unix-like systems, and Sleep() on Windows.

drivers/bsl.c

@@ -388,7 +388,7 @@ static device_t bsl_open(const struct device_args *args)
 	if (enter_via_fet(dev) < 0)
 		printc_err("bsl: warning: FET firmware not responding\n");
 
-	usleep(500000);
+	delay_ms(500);
 
 	/* Show chip info */
 	if (bsl_xfer(dev, CMD_TX_DATA, 0xff0, NULL, 0x10) < 0) {

drivers/fet.c

@@ -676,7 +676,7 @@ static device_status_t fet_poll(device_t dev_base)
 	struct fet_device *dev = (struct fet_device *)dev_base;
 
 	ctrlc_reset();
-	if ((usleep(50000) < 0) || ctrlc_check())
+	if ((delay_ms(50) < 0) || ctrlc_check())
 		return DEVICE_STATUS_INTR;
 
 	if (xfer(dev, C_STATE, NULL, 0, 1, 0) < 0) {
@@ -1002,9 +1002,9 @@ int try_open(struct fet_device *dev, const struct device_args *args,
 	if (dev->flags & FET_PROTO_NOLEAD_SEND) {
 		printc("Resetting Olimex command processor...\n");
 		transport->send(dev->transport, (const uint8_t *)"\x7e", 1);
-		usleep(5000);
+		delay_ms(5);
 		transport->send(dev->transport, (const uint8_t *)"\x7e", 1);
-		usleep(5000);
+		delay_ms(5);
 	}
 
 	printc_dbg("Initializing FET...\n");
@@ -1064,7 +1064,7 @@ static device_t fet_open(const struct device_args *args,
 	dev->flags = flags;
 
 	if (try_open(dev, args, flags & FET_PROTO_FORCE_RESET) < 0) {
-		usleep(500000);
+		delay_ms(500);
 		printc("Trying again...\n");
 		if (try_open(dev, args, 1) < 0)
 			goto fail;

drivers/flash_bsl.c

@@ -226,7 +226,7 @@ static int flash_bsl_recv(struct flash_bsl_device *dev,
         debug_hexdump("received message", recv_buf, recv_len);
 #endif
 
-        usleep(10000);
+	delay_ms(10);
 	return recv_len;
 }
 
@@ -550,7 +550,7 @@ static int flash_bsl_writemem(device_t dev_base,
 
 static void entry_delay(void)
 {
-	usleep(1000);
+	delay_ms(1);
 }
 
 static int enter_via_dtr_rts(struct flash_bsl_device *dev)
@@ -657,7 +657,7 @@ static device_t flash_bsl_open(const struct device_args *args)
 	if (enter_via_dtr_rts(dev) < 0)
 		goto fail;
 
-	usleep(500000);
+	delay_ms(500);
 
 	/* unlock device (erase then send password) */
 	if (flash_bsl_unlock(dev) < 0) {

drivers/goodfet.c

@@ -95,7 +95,7 @@ static int reset_sequence(sport_t fd)
 			return -1;
 		}
 
-		usleep(20000);
+		delay_ms(20);
 	}
 
 	return 0;
@@ -578,7 +578,7 @@ static device_status_t goodfet_poll(device_t dev_base)
 	(void)dev_base;
 
 	ctrlc_reset();
-	if (usleep(100000) < 0 || ctrlc_check())
+	if (delay_ms(100) < 0 || ctrlc_check())
 		return DEVICE_STATUS_INTR;
 
 	return DEVICE_STATUS_RUNNING;

drivers/ti3410.c

@@ -509,7 +509,7 @@ static int do_download(struct usb_device *dev, const struct firmware *f)
 		offset += r;
 	}
 
-	usleep(100000);
+	delay_ms(100);
 	if (usb_reset(hnd) < 0)
 		pr_error("ti3410: warning: reset failed");
 

drivers/tilib.c

@@ -472,7 +472,7 @@ static device_status_t tilib_poll(device_t dev_base)
 	struct tilib_device *dev = (struct tilib_device *)dev_base;
 
         ctrlc_reset();
-        if ((usleep(50000) < 0) || ctrlc_check())
+        if ((delay_ms(50) < 0) || ctrlc_check())
                 return DEVICE_STATUS_INTR;
 
 	if (event_fetch(dev) & MID_HALT_ANY)

util/util.c

@@ -24,6 +24,7 @@
 #include <unistd.h>
 #include <signal.h>
 #include <assert.h>
+#include <time.h>
 
 #ifdef __Windows__
 #include <windows.h>
@@ -360,3 +361,34 @@ char *expand_tilde(const char *path)
 	/* Caller must free()! */
 	return expanded;
 }
+
+#ifdef __Windows__
+int delay_s(unsigned int s)
+{
+	Sleep(s * 1000);
+
+	return 0;
+}
+
+int delay_ms(unsigned int s)
+{
+	Sleep(s);
+
+	return 0;
+}
+#else
+int delay_s(unsigned int s)
+{
+	return sleep(s);
+}
+
+int delay_ms(unsigned int s)
+{
+	struct timespec ts;
+
+	ts.tv_sec = s / 1000;
+	ts.tv_nsec = (s % 1000) * 1000000;
+
+	return nanosleep(&ts, NULL);
+}
+#endif

util/util.h

@@ -24,8 +24,6 @@
 
 #ifdef __Windows__
 #include <windows.h>
-#else
-#include <unistd.h>
 #endif
 
 #define ARRAY_LEN(a) (sizeof(a) / sizeof((a)[0]))
@@ -71,17 +69,8 @@ HANDLE ctrlc_win32_event(void);
 /* Expand `~' in path names. Caller must free the returned ptr */
 char *expand_tilde(const char *path);
 
-/* Sleep for a number of seconds */
-#ifdef __Windows__
-static inline void delay_s(unsigned int s)
-{
-	Sleep(s * 1000);
-}
-#else
-static inline void delay_s(unsigned int s)
-{
-	sleep(s);
-}
-#endif
+/* Sleep for a number of seconds (_s) or milliseconds (_ms) */
+int delay_s(unsigned int s);
+int delay_ms(unsigned int s);
 
 #endif