mirror of https://gitee.com/openkylin/qemu.git
310 lines
7.1 KiB
C
310 lines
7.1 KiB
C
/*
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* Floppy test cases.
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*
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* Copyright (c) 2012 Kevin Wolf <kwolf@redhat.com>
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include <stdint.h>
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#include <string.h>
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#include <stdio.h>
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#include <glib.h>
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#include "libqtest.h"
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#include "qemu-common.h"
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#define TEST_IMAGE_SIZE 1440 * 1024
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#define FLOPPY_BASE 0x3f0
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#define FLOPPY_IRQ 6
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enum {
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reg_sra = 0x0,
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reg_srb = 0x1,
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reg_dor = 0x2,
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reg_msr = 0x4,
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reg_dsr = 0x4,
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reg_fifo = 0x5,
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reg_dir = 0x7,
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};
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enum {
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CMD_SENSE_INT = 0x08,
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CMD_SEEK = 0x0f,
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CMD_READ = 0xe6,
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};
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enum {
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RQM = 0x80,
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DIO = 0x40,
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DSKCHG = 0x80,
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};
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char test_image[] = "/tmp/qtest.XXXXXX";
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#define assert_bit_set(data, mask) g_assert_cmphex((data) & (mask), ==, (mask))
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#define assert_bit_clear(data, mask) g_assert_cmphex((data) & (mask), ==, 0)
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static uint8_t base = 0x70;
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enum {
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CMOS_FLOPPY = 0x10,
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};
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static void floppy_send(uint8_t byte)
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{
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uint8_t msr;
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msr = inb(FLOPPY_BASE + reg_msr);
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assert_bit_set(msr, RQM);
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assert_bit_clear(msr, DIO);
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outb(FLOPPY_BASE + reg_fifo, byte);
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}
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static uint8_t floppy_recv(void)
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{
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uint8_t msr;
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msr = inb(FLOPPY_BASE + reg_msr);
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assert_bit_set(msr, RQM | DIO);
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return inb(FLOPPY_BASE + reg_fifo);
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}
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static void ack_irq(void)
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{
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g_assert(get_irq(FLOPPY_IRQ));
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floppy_send(CMD_SENSE_INT);
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floppy_recv();
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floppy_recv();
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g_assert(!get_irq(FLOPPY_IRQ));
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}
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static uint8_t send_read_command(void)
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{
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uint8_t drive = 0;
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uint8_t head = 0;
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uint8_t cyl = 0;
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uint8_t sect_addr = 1;
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uint8_t sect_size = 2;
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uint8_t eot = 1;
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uint8_t gap = 0x1b;
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uint8_t gpl = 0xff;
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uint8_t msr = 0;
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uint8_t st0;
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uint8_t ret = 0;
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floppy_send(CMD_READ);
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floppy_send(head << 2 | drive);
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g_assert(!get_irq(FLOPPY_IRQ));
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floppy_send(cyl);
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floppy_send(head);
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floppy_send(sect_addr);
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floppy_send(sect_size);
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floppy_send(eot);
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floppy_send(gap);
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floppy_send(gpl);
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uint8_t i = 0;
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uint8_t n = 2;
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for (; i < n; i++) {
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msr = inb(FLOPPY_BASE + reg_msr);
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if (msr == 0xd0) {
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break;
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}
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sleep(1);
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}
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if (i >= n) {
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return 1;
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}
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st0 = floppy_recv();
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if (st0 != 0x40) {
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ret = 1;
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}
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floppy_recv();
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floppy_recv();
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floppy_recv();
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floppy_recv();
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floppy_recv();
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floppy_recv();
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return ret;
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}
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static void send_step_pulse(void)
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{
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int drive = 0;
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int head = 0;
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static int cyl = 0;
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floppy_send(CMD_SEEK);
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floppy_send(head << 2 | drive);
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g_assert(!get_irq(FLOPPY_IRQ));
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floppy_send(cyl);
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ack_irq();
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cyl = (cyl + 1) % 4;
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}
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static uint8_t cmos_read(uint8_t reg)
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{
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outb(base + 0, reg);
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return inb(base + 1);
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}
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static void test_cmos(void)
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{
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uint8_t cmos;
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cmos = cmos_read(CMOS_FLOPPY);
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g_assert(cmos == 0x40);
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}
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static void test_no_media_on_start(void)
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{
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uint8_t dir;
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/* Media changed bit must be set all time after start if there is
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* no media in drive. */
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dir = inb(FLOPPY_BASE + reg_dir);
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assert_bit_set(dir, DSKCHG);
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dir = inb(FLOPPY_BASE + reg_dir);
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assert_bit_set(dir, DSKCHG);
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send_step_pulse();
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send_step_pulse();
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dir = inb(FLOPPY_BASE + reg_dir);
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assert_bit_set(dir, DSKCHG);
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dir = inb(FLOPPY_BASE + reg_dir);
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assert_bit_set(dir, DSKCHG);
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}
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static void test_read_without_media(void)
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{
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uint8_t ret;
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ret = send_read_command();
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g_assert(ret == 0);
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}
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static void test_media_change(void)
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{
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uint8_t dir;
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/* Insert media in drive. DSKCHK should not be reset until a step pulse
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* is sent. */
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qmp("{'execute':'change', 'arguments':{ 'device':'floppy0', "
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"'target': '%s' }}", test_image);
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qmp(""); /* ignore event (FIXME open -> open transition?!) */
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qmp(""); /* ignore event */
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dir = inb(FLOPPY_BASE + reg_dir);
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assert_bit_set(dir, DSKCHG);
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dir = inb(FLOPPY_BASE + reg_dir);
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assert_bit_set(dir, DSKCHG);
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send_step_pulse();
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dir = inb(FLOPPY_BASE + reg_dir);
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assert_bit_clear(dir, DSKCHG);
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dir = inb(FLOPPY_BASE + reg_dir);
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assert_bit_clear(dir, DSKCHG);
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/* Eject the floppy and check that DSKCHG is set. Reading it out doesn't
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* reset the bit. */
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qmp("{'execute':'eject', 'arguments':{ 'device':'floppy0' }}");
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qmp(""); /* ignore event */
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dir = inb(FLOPPY_BASE + reg_dir);
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assert_bit_set(dir, DSKCHG);
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dir = inb(FLOPPY_BASE + reg_dir);
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assert_bit_set(dir, DSKCHG);
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send_step_pulse();
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dir = inb(FLOPPY_BASE + reg_dir);
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assert_bit_set(dir, DSKCHG);
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dir = inb(FLOPPY_BASE + reg_dir);
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assert_bit_set(dir, DSKCHG);
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}
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/* success if no crash or abort */
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static void fuzz_registers(void)
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{
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unsigned int i;
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for (i = 0; i < 1000; i++) {
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uint8_t reg, val;
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reg = (uint8_t)g_test_rand_int_range(0, 8);
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val = (uint8_t)g_test_rand_int_range(0, 256);
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outb(FLOPPY_BASE + reg, val);
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inb(FLOPPY_BASE + reg);
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}
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}
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int main(int argc, char **argv)
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{
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const char *arch = qtest_get_arch();
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char *cmdline;
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int fd;
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int ret;
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/* Check architecture */
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if (strcmp(arch, "i386") && strcmp(arch, "x86_64")) {
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g_test_message("Skipping test for non-x86\n");
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return 0;
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}
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/* Create a temporary raw image */
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fd = mkstemp(test_image);
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g_assert(fd >= 0);
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ret = ftruncate(fd, TEST_IMAGE_SIZE);
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g_assert(ret == 0);
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close(fd);
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/* Run the tests */
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g_test_init(&argc, &argv, NULL);
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cmdline = g_strdup_printf("-vnc none ");
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qtest_start(cmdline);
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qtest_irq_intercept_in(global_qtest, "ioapic");
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qtest_add_func("/fdc/cmos", test_cmos);
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qtest_add_func("/fdc/no_media_on_start", test_no_media_on_start);
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qtest_add_func("/fdc/read_without_media", test_read_without_media);
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qtest_add_func("/fdc/media_change", test_media_change);
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qtest_add_func("/fdc/fuzz-registers", fuzz_registers);
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ret = g_test_run();
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/* Cleanup */
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qtest_quit(global_qtest);
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unlink(test_image);
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return ret;
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}
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