4 * Copyright (c) 2012 Kevin Wolf <kwolf@redhat.com>
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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 static 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);
221 msr = inb(FLOPPY_BASE + reg_msr);
222 assert_bit_set(msr, BUSY | RQM | DIO);
223 g_assert(get_irq(FLOPPY_IRQ));
226 if (st0 != expected_st0) {
235 g_assert(get_irq(FLOPPY_IRQ));
238 /* Check that we're back in command phase */
239 msr = inb(FLOPPY_BASE + reg_msr);
240 assert_bit_clear(msr, BUSY | DIO);
241 assert_bit_set(msr, RQM);
242 g_assert(!get_irq(FLOPPY_IRQ));
247 static void send_seek(int cyl)
252 floppy_send(CMD_SEEK);
253 floppy_send(head << 2 | drive);
254 g_assert(!get_irq(FLOPPY_IRQ));
259 static uint8_t cmos_read(uint8_t reg)
262 return inb(base + 1);
265 static void test_cmos(void)
269 cmos = cmos_read(CMOS_FLOPPY);
270 g_assert(cmos == 0x40);
273 static void test_no_media_on_start(void)
277 /* Media changed bit must be set all time after start if there is
278 * no media in drive. */
279 dir = inb(FLOPPY_BASE + reg_dir);
280 assert_bit_set(dir, DSKCHG);
281 dir = inb(FLOPPY_BASE + reg_dir);
282 assert_bit_set(dir, DSKCHG);
284 dir = inb(FLOPPY_BASE + reg_dir);
285 assert_bit_set(dir, DSKCHG);
286 dir = inb(FLOPPY_BASE + reg_dir);
287 assert_bit_set(dir, DSKCHG);
290 static void test_read_without_media(void)
294 ret = send_read_command(CMD_READ);
298 static void test_media_insert(void)
302 /* Insert media in drive. DSKCHK should not be reset until a step pulse
304 qmp_discard_response("{'execute':'change', 'arguments':{"
305 " 'device':'floppy0', 'target': %s, 'arg': 'raw' }}",
307 qmp_discard_response(""); /* ignore event
308 (FIXME open -> open transition?!) */
309 qmp_discard_response(""); /* ignore event */
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);
317 dir = inb(FLOPPY_BASE + reg_dir);
318 assert_bit_set(dir, DSKCHG);
319 dir = inb(FLOPPY_BASE + reg_dir);
320 assert_bit_set(dir, DSKCHG);
322 /* Step to next track should clear DSKCHG bit. */
324 dir = inb(FLOPPY_BASE + reg_dir);
325 assert_bit_clear(dir, DSKCHG);
326 dir = inb(FLOPPY_BASE + reg_dir);
327 assert_bit_clear(dir, DSKCHG);
330 static void test_media_change(void)
336 /* Eject the floppy and check that DSKCHG is set. Reading it out doesn't
338 qmp_discard_response("{'execute':'eject', 'arguments':{"
339 " 'device':'floppy0' }}");
340 qmp_discard_response(""); /* ignore event */
342 dir = inb(FLOPPY_BASE + reg_dir);
343 assert_bit_set(dir, DSKCHG);
344 dir = inb(FLOPPY_BASE + reg_dir);
345 assert_bit_set(dir, DSKCHG);
348 dir = inb(FLOPPY_BASE + reg_dir);
349 assert_bit_set(dir, DSKCHG);
350 dir = inb(FLOPPY_BASE + reg_dir);
351 assert_bit_set(dir, DSKCHG);
354 dir = inb(FLOPPY_BASE + reg_dir);
355 assert_bit_set(dir, DSKCHG);
356 dir = inb(FLOPPY_BASE + reg_dir);
357 assert_bit_set(dir, DSKCHG);
360 static void test_sense_interrupt(void)
367 floppy_send(CMD_SENSE_INT);
369 g_assert(ret == 0x80);
371 floppy_send(CMD_SEEK);
372 floppy_send(head << 2 | drive);
373 g_assert(!get_irq(FLOPPY_IRQ));
376 floppy_send(CMD_SENSE_INT);
378 g_assert(ret == 0x20);
382 static void test_relative_seek(void)
389 /* Send seek to track 0 */
392 /* Send relative seek to increase track by 1 */
393 floppy_send(CMD_RELATIVE_SEEK_IN);
394 floppy_send(head << 2 | drive);
395 g_assert(!get_irq(FLOPPY_IRQ));
401 /* Send relative seek to decrease track by 1 */
402 floppy_send(CMD_RELATIVE_SEEK_OUT);
403 floppy_send(head << 2 | drive);
404 g_assert(!get_irq(FLOPPY_IRQ));
411 static void test_read_id(void)
419 /* Seek to track 0 and check with READ ID */
422 floppy_send(CMD_READ_ID);
423 g_assert(!get_irq(FLOPPY_IRQ));
424 floppy_send(head << 2 | drive);
426 msr = inb(FLOPPY_BASE + reg_msr);
427 if (!get_irq(FLOPPY_IRQ)) {
428 assert_bit_set(msr, BUSY);
429 assert_bit_clear(msr, RQM);
432 while (!get_irq(FLOPPY_IRQ)) {
433 /* qemu involves a timer with READ ID... */
434 clock_step(1000000000LL / 50);
437 msr = inb(FLOPPY_BASE + reg_msr);
438 assert_bit_set(msr, BUSY | RQM | DIO);
444 head = floppy_recv();
446 g_assert(get_irq(FLOPPY_IRQ));
448 g_assert(!get_irq(FLOPPY_IRQ));
450 g_assert_cmpint(cyl, ==, 0);
451 g_assert_cmpint(head, ==, 0);
452 g_assert_cmpint(st0, ==, head << 2);
454 /* Seek to track 8 on head 1 and check with READ ID */
458 floppy_send(CMD_SEEK);
459 floppy_send(head << 2 | drive);
460 g_assert(!get_irq(FLOPPY_IRQ));
462 g_assert(get_irq(FLOPPY_IRQ));
465 floppy_send(CMD_READ_ID);
466 g_assert(!get_irq(FLOPPY_IRQ));
467 floppy_send(head << 2 | drive);
469 msr = inb(FLOPPY_BASE + reg_msr);
470 if (!get_irq(FLOPPY_IRQ)) {
471 assert_bit_set(msr, BUSY);
472 assert_bit_clear(msr, RQM);
475 while (!get_irq(FLOPPY_IRQ)) {
476 /* qemu involves a timer with READ ID... */
477 clock_step(1000000000LL / 50);
480 msr = inb(FLOPPY_BASE + reg_msr);
481 assert_bit_set(msr, BUSY | RQM | DIO);
487 head = floppy_recv();
489 g_assert(get_irq(FLOPPY_IRQ));
491 g_assert(!get_irq(FLOPPY_IRQ));
493 g_assert_cmpint(cyl, ==, 8);
494 g_assert_cmpint(head, ==, 1);
495 g_assert_cmpint(st0, ==, head << 2);
498 static void test_read_no_dma_1(void)
502 outb(FLOPPY_BASE + reg_dor, inb(FLOPPY_BASE + reg_dor) & ~0x08);
504 ret = send_read_no_dma_command(1, 0x04);
508 static void test_read_no_dma_18(void)
512 outb(FLOPPY_BASE + reg_dor, inb(FLOPPY_BASE + reg_dor) & ~0x08);
514 ret = send_read_no_dma_command(18, 0x04);
518 static void test_read_no_dma_19(void)
522 outb(FLOPPY_BASE + reg_dor, inb(FLOPPY_BASE + reg_dor) & ~0x08);
524 ret = send_read_no_dma_command(19, 0x20);
528 static void test_verify(void)
532 ret = send_read_command(CMD_VERIFY);
536 /* success if no crash or abort */
537 static void fuzz_registers(void)
541 for (i = 0; i < 1000; i++) {
544 reg = (uint8_t)g_test_rand_int_range(0, 8);
545 val = (uint8_t)g_test_rand_int_range(0, 256);
547 outb(FLOPPY_BASE + reg, val);
548 inb(FLOPPY_BASE + reg);
552 int main(int argc, char **argv)
554 const char *arch = qtest_get_arch();
558 /* Check architecture */
559 if (strcmp(arch, "i386") && strcmp(arch, "x86_64")) {
560 g_test_message("Skipping test for non-x86\n");
564 /* Create a temporary raw image */
565 fd = mkstemp(test_image);
567 ret = ftruncate(fd, TEST_IMAGE_SIZE);
572 g_test_init(&argc, &argv, NULL);
575 qtest_irq_intercept_in(global_qtest, "ioapic");
576 qtest_add_func("/fdc/cmos", test_cmos);
577 qtest_add_func("/fdc/no_media_on_start", test_no_media_on_start);
578 qtest_add_func("/fdc/read_without_media", test_read_without_media);
579 qtest_add_func("/fdc/media_change", test_media_change);
580 qtest_add_func("/fdc/sense_interrupt", test_sense_interrupt);
581 qtest_add_func("/fdc/relative_seek", test_relative_seek);
582 qtest_add_func("/fdc/read_id", test_read_id);
583 qtest_add_func("/fdc/verify", test_verify);
584 qtest_add_func("/fdc/media_insert", test_media_insert);
585 qtest_add_func("/fdc/read_no_dma_1", test_read_no_dma_1);
586 qtest_add_func("/fdc/read_no_dma_18", test_read_no_dma_18);
587 qtest_add_func("/fdc/read_no_dma_19", test_read_no_dma_19);
588 qtest_add_func("/fdc/fuzz-registers", fuzz_registers);