hiti: Use nanosleep() instead of usleep()

backend_hiti.c

@@ -33,6 +33,9 @@
 #include <config.h>
 #endif
 
+// We should use nanosleep everywhere properly.
+#define __usleep(__x) { struct timespec t = { 0, (__x) * 1000 } ; nanosleep (&t, NULL); }
+
 /* Private structures */
 struct hiti_cmd {
 	uint8_t hdr;    /* 0xa5 */
@@ -424,7 +427,7 @@ static int hiti_docmd(struct hiti_ctx *ctx, uint16_t cmdid, uint8_t *buf, uint16
 		return ret;
 	}
 
-	usleep(10*1000);
+	__usleep(10*1000);
 
 	/* Read back command */
 	ret = read_data(ctx->dev, ctx->endp_up, cmdbuf, 6, &num);
@@ -467,7 +470,7 @@ static int hiti_docmd_resp(struct hiti_ctx *ctx, uint16_t cmdid,
 		return CUPS_BACKEND_FAILED;
 	}
 
-	usleep(10*1000);
+	__usleep(10*1000);
 
 	/* Read back the data*/
 	ret = read_data(ctx->dev, ctx->endp_up, respbuf, *resplen, &num);
@@ -508,7 +511,7 @@ static int hiti_sepd(struct hiti_ctx *ctx, uint32_t buf_len,
 		return ret;
 	}
 
-	usleep(10*1000);
+	__usleep(10*1000);
 
 	/* Read back command */
 	ret = read_data(ctx->dev, ctx->endp_up, cmdbuf, 6, &num);
@@ -1137,7 +1140,7 @@ static int hiti_seht2(struct hiti_ctx *ctx, uint8_t plane,
 		return ret;
 	}
 
-	usleep(10*1000);
+	__usleep(10*1000);
 
 	/* Read back command */
 	ret = read_data(ctx->dev, ctx->endp_up, cmdbuf, 6, &num);
@@ -1876,7 +1879,7 @@ resend_y:
 	ret = send_data(ctx->dev, ctx->endp_down, job->databuf + sent, rows * cols);
 	if (ret)
 		return CUPS_BACKEND_FAILED;
-	usleep(200*1000);
+	__usleep(200*1000);
 	sent += rows * cols;
 	ret = hiti_query_status(ctx, sts, &err);
 	if (ret)
@@ -1903,7 +1906,7 @@ resend_m:
 	if (ret)
 		return CUPS_BACKEND_FAILED;
 	sent += rows * cols;
-	usleep(200*1000);
+	__usleep(200*1000);
 	ret = hiti_query_status(ctx, sts, &err);
 	if (ret)
 		return ret;
@@ -1928,7 +1931,7 @@ resend_c:
 	ret = send_data(ctx->dev, ctx->endp_down, job->databuf + sent, rows * cols);
 	if (ret)
 		return CUPS_BACKEND_FAILED;
-	usleep(200*1000);
+	__usleep(200*1000);
 	sent += rows * cols;
 	ret = hiti_query_status(ctx, sts, &err);
 	if (ret)