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/*
* Floppy test cases.
*
* Copyright (c) 2012 Kevin Wolf <kwolf@redhat.com>
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include <stdint.h>
#include <string.h>
#include <stdio.h>
#include <glib.h>
#include "libqtest.h"
#include "qemu-common.h"
#define TEST_IMAGE_SIZE 1440 * 1024
#define FLOPPY_BASE 0x3f0
#define FLOPPY_IRQ 6
enum {
reg_sra = 0x0,
reg_srb = 0x1,
reg_dor = 0x2,
reg_msr = 0x4,
reg_dsr = 0x4,
reg_fifo = 0x5,
reg_dir = 0x7,
};
enum {
CMD_SENSE_INT = 0x08,
CMD_SEEK = 0x0f,
};
enum {
RQM = 0x80,
DIO = 0x40,
DSKCHG = 0x80,
};
char test_image[] = "/tmp/qtest.XXXXXX";
#define assert_bit_set(data, mask) g_assert_cmphex((data) & (mask), ==, (mask))
#define assert_bit_clear(data, mask) g_assert_cmphex((data) & (mask), ==, 0)
static uint8_t base = 0x70;
enum {
CMOS_FLOPPY = 0x10,
};
static void floppy_send(uint8_t byte)
{
uint8_t msr;
msr = inb(FLOPPY_BASE + reg_msr);
assert_bit_set(msr, RQM);
assert_bit_clear(msr, DIO);
outb(FLOPPY_BASE + reg_fifo, byte);
}
static uint8_t floppy_recv(void)
{
uint8_t msr;
msr = inb(FLOPPY_BASE + reg_msr);
assert_bit_set(msr, RQM | DIO);
return inb(FLOPPY_BASE + reg_fifo);
}
static void ack_irq(void)
{
g_assert(get_irq(FLOPPY_IRQ));
floppy_send(CMD_SENSE_INT);
floppy_recv();
floppy_recv();
g_assert(!get_irq(FLOPPY_IRQ));
}
static void send_step_pulse(void)
{
int drive = 0;
int head = 0;
static int cyl = 0;
floppy_send(CMD_SEEK);
floppy_send(head << 2 | drive);
g_assert(!get_irq(FLOPPY_IRQ));
floppy_send(cyl);
ack_irq();
cyl = (cyl + 1) % 4;
}
static uint8_t cmos_read(uint8_t reg)
{
outb(base + 0, reg);
return inb(base + 1);
}
static void test_cmos(void)
{
uint8_t cmos;
cmos = cmos_read(CMOS_FLOPPY);
g_assert(cmos == 0x40);
}
static void test_no_media_on_start(void)
{
uint8_t dir;
/* Media changed bit must be set all time after start if there is
* no media in drive. */
dir = inb(FLOPPY_BASE + reg_dir);
assert_bit_set(dir, DSKCHG);
dir = inb(FLOPPY_BASE + reg_dir);
assert_bit_set(dir, DSKCHG);
send_step_pulse();
send_step_pulse();
dir = inb(FLOPPY_BASE + reg_dir);
assert_bit_set(dir, DSKCHG);
dir = inb(FLOPPY_BASE + reg_dir);
assert_bit_set(dir, DSKCHG);
}
static void test_media_change(void)
{
uint8_t dir;
/* Insert media in drive. DSKCHK should not be reset until a step pulse
* is sent. */
qmp("{'execute':'change', 'arguments':{ 'device':'floppy0', "
"'target': '%s' }}", test_image);
qmp(""); /* ignore event (FIXME open -> open transition?!) */
qmp(""); /* ignore event */
dir = inb(FLOPPY_BASE + reg_dir);
assert_bit_set(dir, DSKCHG);
dir = inb(FLOPPY_BASE + reg_dir);
assert_bit_set(dir, DSKCHG);
send_step_pulse();
dir = inb(FLOPPY_BASE + reg_dir);
assert_bit_clear(dir, DSKCHG);
dir = inb(FLOPPY_BASE + reg_dir);
assert_bit_clear(dir, DSKCHG);
/* Eject the floppy and check that DSKCHG is set. Reading it out doesn't
* reset the bit. */
qmp("{'execute':'eject', 'arguments':{ 'device':'floppy0' }}");
qmp(""); /* ignore event */
dir = inb(FLOPPY_BASE + reg_dir);
assert_bit_set(dir, DSKCHG);
dir = inb(FLOPPY_BASE + reg_dir);
assert_bit_set(dir, DSKCHG);
send_step_pulse();
dir = inb(FLOPPY_BASE + reg_dir);
assert_bit_set(dir, DSKCHG);
dir = inb(FLOPPY_BASE + reg_dir);
assert_bit_set(dir, DSKCHG);
}
int main(int argc, char **argv)
{
const char *arch = qtest_get_arch();
char *cmdline;
int fd;
int ret;
/* Check architecture */
if (strcmp(arch, "i386") && strcmp(arch, "x86_64")) {
g_test_message("Skipping test for non-x86\n");
return 0;
}
/* Create a temporary raw image */
fd = mkstemp(test_image);
g_assert(fd >= 0);
ret = ftruncate(fd, TEST_IMAGE_SIZE);
g_assert(ret == 0);
close(fd);
/* Run the tests */
g_test_init(&argc, &argv, NULL);
cmdline = g_strdup_printf("-vnc none ");
qtest_start(cmdline);
qtest_irq_intercept_in(global_qtest, "ioapic");
qtest_add_func("/fdc/cmos", test_cmos);
qtest_add_func("/fdc/no_media_on_start", test_no_media_on_start);
qtest_add_func("/fdc/media_change", test_media_change);
ret = g_test_run();
/* Cleanup */
qtest_quit(global_qtest);
unlink(test_image);
return ret;
}
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