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32 #include "qemu-common.h"
34 #define TEST_IMAGE_SIZE 1440 * 1024
36 #define FLOPPY_BASE 0x3f0
55 CMD_RELATIVE_SEEK_OUT = 0x8f,
56 CMD_RELATIVE_SEEK_IN = 0xcf,
68 char test_image[] = "/tmp/qtest.XXXXXX";
70 #define assert_bit_set(data, mask) g_assert_cmphex((data) & (mask), ==, (mask))
71 #define assert_bit_clear(data, mask) g_assert_cmphex((data) & (mask), ==, 0)
73 static uint8_t base = 0x70;
79 static void floppy_send(uint8_t byte)
83 msr = inb(FLOPPY_BASE + reg_msr);
84 assert_bit_set(msr, RQM);
85 assert_bit_clear(msr, DIO);
87 outb(FLOPPY_BASE + reg_fifo, byte);
90 static uint8_t floppy_recv(void)
94 msr = inb(FLOPPY_BASE + reg_msr);
95 assert_bit_set(msr, RQM | DIO);
97 return inb(FLOPPY_BASE + reg_fifo);
100 /* pcn: Present Cylinder Number */
101 static void ack_irq(uint8_t *pcn)
105 g_assert(get_irq(FLOPPY_IRQ));
106 floppy_send(CMD_SENSE_INT);
114 g_assert(!get_irq(FLOPPY_IRQ));
117 static uint8_t send_read_command(uint8_t cmd)
122 uint8_t sect_addr = 1;
123 uint8_t sect_size = 2;
134 floppy_send(head << 2 | drive);
135 g_assert(!get_irq(FLOPPY_IRQ));
138 floppy_send(sect_addr);
139 floppy_send(sect_size);
147 msr = inb(FLOPPY_BASE + reg_msr);
173 static uint8_t send_read_no_dma_command(int nb_sect, uint8_t expected_st0)
178 uint8_t sect_addr = 1;
179 uint8_t sect_size = 2;
180 uint8_t eot = nb_sect;
189 floppy_send(CMD_READ);
190 floppy_send(head << 2 | drive);
191 g_assert(!get_irq(FLOPPY_IRQ));
194 floppy_send(sect_addr);
195 floppy_send(sect_size);
203 msr = inb(FLOPPY_BASE + reg_msr);
204 if (msr == (BUSY | NONDMA | DIO | RQM)) {
215 for (i = 0; i < 512 * 2 * nb_sect; i++) {
216 msr = inb(FLOPPY_BASE + reg_msr);
217 assert_bit_set(msr, BUSY | RQM | DIO);
218 inb(FLOPPY_BASE + reg_fifo);
222 if (st0 != expected_st0) {
236 static void send_seek(int cyl)
241 floppy_send(CMD_SEEK);
242 floppy_send(head << 2 | drive);
243 g_assert(!get_irq(FLOPPY_IRQ));
248 static uint8_t cmos_read(uint8_t reg)
251 return inb(base + 1);
254 static void test_cmos(void)
258 cmos = cmos_read(CMOS_FLOPPY);
259 g_assert(cmos == 0x40);
262 static void test_no_media_on_start(void)
266 /* Media changed bit must be set all time after start if there is
267 * no media in drive. */
268 dir = inb(FLOPPY_BASE + reg_dir);
269 assert_bit_set(dir, DSKCHG);
270 dir = inb(FLOPPY_BASE + reg_dir);
271 assert_bit_set(dir, DSKCHG);
273 dir = inb(FLOPPY_BASE + reg_dir);
274 assert_bit_set(dir, DSKCHG);
275 dir = inb(FLOPPY_BASE + reg_dir);
276 assert_bit_set(dir, DSKCHG);
279 static void test_read_without_media(void)
283 ret = send_read_command(CMD_READ);
287 static void test_media_insert(void)
291 /* Insert media in drive. DSKCHK should not be reset until a step pulse
293 qmp_discard_response("{'execute':'change', 'arguments':{"
294 " 'device':'floppy0', 'target': '%s' }}",
296 qmp_discard_response(""); /* ignore event
297 (FIXME open -> open transition?!) */
298 qmp_discard_response(""); /* ignore event */
300 dir = inb(FLOPPY_BASE + reg_dir);
301 assert_bit_set(dir, DSKCHG);
302 dir = inb(FLOPPY_BASE + reg_dir);
303 assert_bit_set(dir, DSKCHG);
306 dir = inb(FLOPPY_BASE + reg_dir);
307 assert_bit_set(dir, DSKCHG);
308 dir = inb(FLOPPY_BASE + reg_dir);
309 assert_bit_set(dir, DSKCHG);
311 /* Step to next track should clear DSKCHG bit. */
313 dir = inb(FLOPPY_BASE + reg_dir);
314 assert_bit_clear(dir, DSKCHG);
315 dir = inb(FLOPPY_BASE + reg_dir);
316 assert_bit_clear(dir, DSKCHG);
319 static void test_media_change(void)
325 /* Eject the floppy and check that DSKCHG is set. Reading it out doesn't
327 qmp_discard_response("{'execute':'eject', 'arguments':{"
328 " 'device':'floppy0' }}");
329 qmp_discard_response(""); /* ignore event */
331 dir = inb(FLOPPY_BASE + reg_dir);
332 assert_bit_set(dir, DSKCHG);
333 dir = inb(FLOPPY_BASE + reg_dir);
334 assert_bit_set(dir, DSKCHG);
337 dir = inb(FLOPPY_BASE + reg_dir);
338 assert_bit_set(dir, DSKCHG);
339 dir = inb(FLOPPY_BASE + reg_dir);
340 assert_bit_set(dir, DSKCHG);
343 dir = inb(FLOPPY_BASE + reg_dir);
344 assert_bit_set(dir, DSKCHG);
345 dir = inb(FLOPPY_BASE + reg_dir);
346 assert_bit_set(dir, DSKCHG);
349 static void test_sense_interrupt(void)
356 floppy_send(CMD_SENSE_INT);
358 g_assert(ret == 0x80);
360 floppy_send(CMD_SEEK);
361 floppy_send(head << 2 | drive);
362 g_assert(!get_irq(FLOPPY_IRQ));
365 floppy_send(CMD_SENSE_INT);
367 g_assert(ret == 0x20);
371 static void test_relative_seek(void)
378 /* Send seek to track 0 */
381 /* Send relative seek to increase track by 1 */
382 floppy_send(CMD_RELATIVE_SEEK_IN);
383 floppy_send(head << 2 | drive);
384 g_assert(!get_irq(FLOPPY_IRQ));
390 /* Send relative seek to decrease track by 1 */
391 floppy_send(CMD_RELATIVE_SEEK_OUT);
392 floppy_send(head << 2 | drive);
393 g_assert(!get_irq(FLOPPY_IRQ));
400 static void test_read_id(void)
407 /* Seek to track 0 and check with READ ID */
410 floppy_send(CMD_READ_ID);
411 g_assert(!get_irq(FLOPPY_IRQ));
412 floppy_send(head << 2 | drive);
414 while (!get_irq(FLOPPY_IRQ)) {
415 /* qemu involves a timer with READ ID... */
416 clock_step(1000000000LL / 50);
423 head = floppy_recv();
427 g_assert_cmpint(cyl, ==, 0);
428 g_assert_cmpint(head, ==, 0);
429 g_assert_cmpint(st0, ==, head << 2);
431 /* Seek to track 8 on head 1 and check with READ ID */
435 floppy_send(CMD_SEEK);
436 floppy_send(head << 2 | drive);
437 g_assert(!get_irq(FLOPPY_IRQ));
439 g_assert(get_irq(FLOPPY_IRQ));
442 floppy_send(CMD_READ_ID);
443 g_assert(!get_irq(FLOPPY_IRQ));
444 floppy_send(head << 2 | drive);
446 while (!get_irq(FLOPPY_IRQ)) {
447 /* qemu involves a timer with READ ID... */
448 clock_step(1000000000LL / 50);
455 head = floppy_recv();
459 g_assert_cmpint(cyl, ==, 8);
460 g_assert_cmpint(head, ==, 1);
461 g_assert_cmpint(st0, ==, head << 2);
464 static void test_read_no_dma_1(void)
468 outb(FLOPPY_BASE + reg_dor, inb(FLOPPY_BASE + reg_dor) & ~0x08);
470 ret = send_read_no_dma_command(1, 0x04);
474 static void test_read_no_dma_18(void)
478 outb(FLOPPY_BASE + reg_dor, inb(FLOPPY_BASE + reg_dor) & ~0x08);
480 ret = send_read_no_dma_command(18, 0x04);
484 static void test_read_no_dma_19(void)
488 outb(FLOPPY_BASE + reg_dor, inb(FLOPPY_BASE + reg_dor) & ~0x08);
490 ret = send_read_no_dma_command(19, 0x20);
494 static void test_verify(void)
498 ret = send_read_command(CMD_VERIFY);
502 /* success if no crash or abort */
503 static void fuzz_registers(void)
507 for (i = 0; i < 1000; i++) {
510 reg = (uint8_t)g_test_rand_int_range(0, 8);
511 val = (uint8_t)g_test_rand_int_range(0, 256);
513 outb(FLOPPY_BASE + reg, val);
514 inb(FLOPPY_BASE + reg);
518 int main(int argc, char **argv)
520 const char *arch = qtest_get_arch();
524 /* Check architecture */
525 if (strcmp(arch, "i386") && strcmp(arch, "x86_64")) {
526 g_test_message("Skipping test for non-x86\n");
530 /* Create a temporary raw image */
531 fd = mkstemp(test_image);
533 ret = ftruncate(fd, TEST_IMAGE_SIZE);
538 g_test_init(&argc, &argv, NULL);
541 qtest_irq_intercept_in(global_qtest, "ioapic");
542 qtest_add_func("/fdc/cmos", test_cmos);
543 qtest_add_func("/fdc/no_media_on_start", test_no_media_on_start);
544 qtest_add_func("/fdc/read_without_media", test_read_without_media);
545 qtest_add_func("/fdc/media_change", test_media_change);
546 qtest_add_func("/fdc/sense_interrupt", test_sense_interrupt);
547 qtest_add_func("/fdc/relative_seek", test_relative_seek);
548 qtest_add_func("/fdc/read_id", test_read_id);
549 qtest_add_func("/fdc/verify", test_verify);
550 qtest_add_func("/fdc/media_insert", test_media_insert);
551 qtest_add_func("/fdc/read_no_dma_1", test_read_no_dma_1);
552 qtest_add_func("/fdc/read_no_dma_18", test_read_no_dma_18);
553 qtest_add_func("/fdc/read_no_dma_19", test_read_no_dma_19);
554 qtest_add_func("/fdc/fuzz-registers", fuzz_registers);