WIP

tests/big-blkdev.c

@@ -0,0 +1,79 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "mmio.h"
+#include "blkdev.h"
+
+#define SECTOR_WORDS (BLKDEV_SECTOR_SIZE / sizeof(uint64_t))
+#define TEST_SECTORS 128
+
+unsigned long sector_buf[SECTOR_WORDS];
+
+void write_sector(unsigned int secnum)
+{
+	int req_tag, resp_tag;
+
+	for (int i = 0; i < SECTOR_WORDS; i++)
+		sector_buf[i] = (secnum << 6) | i;
+
+	while (reg_read8(BLKDEV_NREQUEST) == 0);
+	req_tag = blkdev_send_request((unsigned long) sector_buf, secnum, 1, 1);
+	while (reg_read8(BLKDEV_NCOMPLETE) == 0);
+	resp_tag = reg_read8(BLKDEV_COMPLETE);
+
+	if (req_tag != resp_tag) {
+		printf("Response tag %d does not match request tag %d\n",
+				req_tag, resp_tag);
+		exit(EXIT_FAILURE);
+	}
+}
+
+void check_sector(unsigned int secnum)
+{
+	int req_tag, resp_tag;
+
+	while (reg_read8(BLKDEV_NREQUEST) == 0);
+	req_tag = blkdev_send_request((unsigned long) sector_buf, secnum, 1, 0);
+	while (reg_read8(BLKDEV_NCOMPLETE) == 0);
+	resp_tag = reg_read8(BLKDEV_COMPLETE);
+
+	if (req_tag != resp_tag) {
+		printf("Response tag %d does not match request tag %d\n",
+				req_tag, resp_tag);
+		exit(EXIT_FAILURE);
+	}
+
+	for (int i = 0; i < SECTOR_WORDS; i++) {
+		unsigned long expected = (secnum << 6) | i;
+		unsigned long actual = sector_buf[i];
+		if (actual != expected) {
+			printf("Word %d in sector %x does not match expected\n",
+					i, secnum);
+			printf("Expected %lx, got %lx\n",
+					expected, actual);
+			exit(EXIT_FAILURE);
+		}
+	}
+}
+
+int main(void)
+{
+	unsigned int nsectors = blkdev_nsectors();
+	unsigned int stride = nsectors / TEST_SECTORS;
+
+	printf("Writing %u of %u sectors\n", TEST_SECTORS, nsectors);
+
+	for (int i = 0; i < TEST_SECTORS; i++) {
+		int sector = i * stride;
+		write_sector(sector);
+	}
+
+	printf("Checking sectors\n", nsectors);
+
+	for (int i = 0; i < TEST_SECTORS; i++) {
+		int sector = i * stride;
+		check_sector(sector);
+	}
+
+	return 0;
+}