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13 * The above copyright notice and this permission notice shall be included in
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25 #include "qemu/osdep.h"
29 #include "qemu-common.h"
31 #define TEST_IMAGE_SIZE 1440 * 1024
33 #define FLOPPY_BASE 0x3f0
52 CMD_RELATIVE_SEEK_OUT = 0x8f,
53 CMD_RELATIVE_SEEK_IN = 0xcf,
65 static char test_image[] = "/tmp/qtest.XXXXXX";
67 #define assert_bit_set(data, mask) g_assert_cmphex((data) & (mask), ==, (mask))
68 #define assert_bit_clear(data, mask) g_assert_cmphex((data) & (mask), ==, 0)
70 static uint8_t base = 0x70;
76 static void floppy_send(uint8_t byte)
80 msr = inb(FLOPPY_BASE + reg_msr);
81 assert_bit_set(msr, RQM);
82 assert_bit_clear(msr, DIO);
84 outb(FLOPPY_BASE + reg_fifo, byte);
87 static uint8_t floppy_recv(void)
91 msr = inb(FLOPPY_BASE + reg_msr);
92 assert_bit_set(msr, RQM | DIO);
94 return inb(FLOPPY_BASE + reg_fifo);
97 /* pcn: Present Cylinder Number */
98 static void ack_irq(uint8_t *pcn)
102 g_assert(get_irq(FLOPPY_IRQ));
103 floppy_send(CMD_SENSE_INT);
111 g_assert(!get_irq(FLOPPY_IRQ));
114 static uint8_t send_read_command(uint8_t cmd)
119 uint8_t sect_addr = 1;
120 uint8_t sect_size = 2;
131 floppy_send(head << 2 | drive);
132 g_assert(!get_irq(FLOPPY_IRQ));
135 floppy_send(sect_addr);
136 floppy_send(sect_size);
144 msr = inb(FLOPPY_BASE + reg_msr);
170 static uint8_t send_read_no_dma_command(int nb_sect, uint8_t expected_st0)
175 uint8_t sect_addr = 1;
176 uint8_t sect_size = 2;
177 uint8_t eot = nb_sect;
186 floppy_send(CMD_READ);
187 floppy_send(head << 2 | drive);
188 g_assert(!get_irq(FLOPPY_IRQ));
191 floppy_send(sect_addr);
192 floppy_send(sect_size);
200 msr = inb(FLOPPY_BASE + reg_msr);
201 if (msr == (BUSY | NONDMA | DIO | RQM)) {
212 for (i = 0; i < 512 * 2 * nb_sect; i++) {
213 msr = inb(FLOPPY_BASE + reg_msr);
214 assert_bit_set(msr, BUSY | RQM | DIO);
215 inb(FLOPPY_BASE + reg_fifo);
218 msr = inb(FLOPPY_BASE + reg_msr);
219 assert_bit_set(msr, BUSY | RQM | DIO);
220 g_assert(get_irq(FLOPPY_IRQ));
223 if (st0 != expected_st0) {
232 g_assert(get_irq(FLOPPY_IRQ));
235 /* Check that we're back in command phase */
236 msr = inb(FLOPPY_BASE + reg_msr);
237 assert_bit_clear(msr, BUSY | DIO);
238 assert_bit_set(msr, RQM);
239 g_assert(!get_irq(FLOPPY_IRQ));
244 static void send_seek(int cyl)
249 floppy_send(CMD_SEEK);
250 floppy_send(head << 2 | drive);
251 g_assert(!get_irq(FLOPPY_IRQ));
256 static uint8_t cmos_read(uint8_t reg)
259 return inb(base + 1);
262 static void test_cmos(void)
266 cmos = cmos_read(CMOS_FLOPPY);
267 g_assert(cmos == 0x40 || cmos == 0x50);
270 static void test_no_media_on_start(void)
274 /* Media changed bit must be set all time after start if there is
275 * no media in drive. */
276 dir = inb(FLOPPY_BASE + reg_dir);
277 assert_bit_set(dir, DSKCHG);
278 dir = inb(FLOPPY_BASE + reg_dir);
279 assert_bit_set(dir, DSKCHG);
281 dir = inb(FLOPPY_BASE + reg_dir);
282 assert_bit_set(dir, DSKCHG);
283 dir = inb(FLOPPY_BASE + reg_dir);
284 assert_bit_set(dir, DSKCHG);
287 static void test_read_without_media(void)
291 ret = send_read_command(CMD_READ);
295 static void test_media_insert(void)
299 /* Insert media in drive. DSKCHK should not be reset until a step pulse
301 qmp_discard_response("{'execute':'change', 'arguments':{"
302 " 'device':'floppy0', 'target': %s, 'arg': 'raw' }}",
305 dir = inb(FLOPPY_BASE + reg_dir);
306 assert_bit_set(dir, DSKCHG);
307 dir = inb(FLOPPY_BASE + reg_dir);
308 assert_bit_set(dir, DSKCHG);
311 dir = inb(FLOPPY_BASE + reg_dir);
312 assert_bit_set(dir, DSKCHG);
313 dir = inb(FLOPPY_BASE + reg_dir);
314 assert_bit_set(dir, DSKCHG);
316 /* Step to next track should clear DSKCHG bit. */
318 dir = inb(FLOPPY_BASE + reg_dir);
319 assert_bit_clear(dir, DSKCHG);
320 dir = inb(FLOPPY_BASE + reg_dir);
321 assert_bit_clear(dir, DSKCHG);
324 static void test_media_change(void)
330 /* Eject the floppy and check that DSKCHG is set. Reading it out doesn't
332 qmp_discard_response("{'execute':'eject', 'arguments':{"
333 " 'device':'floppy0' }}");
335 dir = inb(FLOPPY_BASE + reg_dir);
336 assert_bit_set(dir, DSKCHG);
337 dir = inb(FLOPPY_BASE + reg_dir);
338 assert_bit_set(dir, DSKCHG);
341 dir = inb(FLOPPY_BASE + reg_dir);
342 assert_bit_set(dir, DSKCHG);
343 dir = inb(FLOPPY_BASE + reg_dir);
344 assert_bit_set(dir, DSKCHG);
347 dir = inb(FLOPPY_BASE + reg_dir);
348 assert_bit_set(dir, DSKCHG);
349 dir = inb(FLOPPY_BASE + reg_dir);
350 assert_bit_set(dir, DSKCHG);
353 static void test_sense_interrupt(void)
360 floppy_send(CMD_SENSE_INT);
362 g_assert(ret == 0x80);
364 floppy_send(CMD_SEEK);
365 floppy_send(head << 2 | drive);
366 g_assert(!get_irq(FLOPPY_IRQ));
369 floppy_send(CMD_SENSE_INT);
371 g_assert(ret == 0x20);
375 static void test_relative_seek(void)
382 /* Send seek to track 0 */
385 /* Send relative seek to increase track by 1 */
386 floppy_send(CMD_RELATIVE_SEEK_IN);
387 floppy_send(head << 2 | drive);
388 g_assert(!get_irq(FLOPPY_IRQ));
394 /* Send relative seek to decrease track by 1 */
395 floppy_send(CMD_RELATIVE_SEEK_OUT);
396 floppy_send(head << 2 | drive);
397 g_assert(!get_irq(FLOPPY_IRQ));
404 static void test_read_id(void)
412 /* Seek to track 0 and check with READ ID */
415 floppy_send(CMD_READ_ID);
416 g_assert(!get_irq(FLOPPY_IRQ));
417 floppy_send(head << 2 | drive);
419 msr = inb(FLOPPY_BASE + reg_msr);
420 if (!get_irq(FLOPPY_IRQ)) {
421 assert_bit_set(msr, BUSY);
422 assert_bit_clear(msr, RQM);
425 while (!get_irq(FLOPPY_IRQ)) {
426 /* qemu involves a timer with READ ID... */
427 clock_step(1000000000LL / 50);
430 msr = inb(FLOPPY_BASE + reg_msr);
431 assert_bit_set(msr, BUSY | RQM | DIO);
437 head = floppy_recv();
439 g_assert(get_irq(FLOPPY_IRQ));
441 g_assert(!get_irq(FLOPPY_IRQ));
443 g_assert_cmpint(cyl, ==, 0);
444 g_assert_cmpint(head, ==, 0);
445 g_assert_cmpint(st0, ==, head << 2);
447 /* Seek to track 8 on head 1 and check with READ ID */
451 floppy_send(CMD_SEEK);
452 floppy_send(head << 2 | drive);
453 g_assert(!get_irq(FLOPPY_IRQ));
455 g_assert(get_irq(FLOPPY_IRQ));
458 floppy_send(CMD_READ_ID);
459 g_assert(!get_irq(FLOPPY_IRQ));
460 floppy_send(head << 2 | drive);
462 msr = inb(FLOPPY_BASE + reg_msr);
463 if (!get_irq(FLOPPY_IRQ)) {
464 assert_bit_set(msr, BUSY);
465 assert_bit_clear(msr, RQM);
468 while (!get_irq(FLOPPY_IRQ)) {
469 /* qemu involves a timer with READ ID... */
470 clock_step(1000000000LL / 50);
473 msr = inb(FLOPPY_BASE + reg_msr);
474 assert_bit_set(msr, BUSY | RQM | DIO);
480 head = floppy_recv();
482 g_assert(get_irq(FLOPPY_IRQ));
484 g_assert(!get_irq(FLOPPY_IRQ));
486 g_assert_cmpint(cyl, ==, 8);
487 g_assert_cmpint(head, ==, 1);
488 g_assert_cmpint(st0, ==, head << 2);
491 static void test_read_no_dma_1(void)
495 outb(FLOPPY_BASE + reg_dor, inb(FLOPPY_BASE + reg_dor) & ~0x08);
497 ret = send_read_no_dma_command(1, 0x04);
501 static void test_read_no_dma_18(void)
505 outb(FLOPPY_BASE + reg_dor, inb(FLOPPY_BASE + reg_dor) & ~0x08);
507 ret = send_read_no_dma_command(18, 0x04);
511 static void test_read_no_dma_19(void)
515 outb(FLOPPY_BASE + reg_dor, inb(FLOPPY_BASE + reg_dor) & ~0x08);
517 ret = send_read_no_dma_command(19, 0x20);
521 static void test_verify(void)
525 ret = send_read_command(CMD_VERIFY);
529 /* success if no crash or abort */
530 static void fuzz_registers(void)
534 for (i = 0; i < 1000; i++) {
537 reg = (uint8_t)g_test_rand_int_range(0, 8);
538 val = (uint8_t)g_test_rand_int_range(0, 256);
540 outb(FLOPPY_BASE + reg, val);
541 inb(FLOPPY_BASE + reg);
545 int main(int argc, char **argv)
547 const char *arch = qtest_get_arch();
551 /* Check architecture */
552 if (strcmp(arch, "i386") && strcmp(arch, "x86_64")) {
553 g_test_message("Skipping test for non-x86\n");
557 /* Create a temporary raw image */
558 fd = mkstemp(test_image);
560 ret = ftruncate(fd, TEST_IMAGE_SIZE);
565 g_test_init(&argc, &argv, NULL);
568 qtest_irq_intercept_in(global_qtest, "ioapic");
569 qtest_add_func("/fdc/cmos", test_cmos);
570 qtest_add_func("/fdc/no_media_on_start", test_no_media_on_start);
571 qtest_add_func("/fdc/read_without_media", test_read_without_media);
572 qtest_add_func("/fdc/media_change", test_media_change);
573 qtest_add_func("/fdc/sense_interrupt", test_sense_interrupt);
574 qtest_add_func("/fdc/relative_seek", test_relative_seek);
575 qtest_add_func("/fdc/read_id", test_read_id);
576 qtest_add_func("/fdc/verify", test_verify);
577 qtest_add_func("/fdc/media_insert", test_media_insert);
578 qtest_add_func("/fdc/read_no_dma_1", test_read_no_dma_1);
579 qtest_add_func("/fdc/read_no_dma_18", test_read_no_dma_18);
580 qtest_add_func("/fdc/read_no_dma_19", test_read_no_dma_19);
581 qtest_add_func("/fdc/fuzz-registers", fuzz_registers);