aboutsummaryrefslogtreecommitdiff
path: root/tests/rtl8139-test.c
blob: e749be38ea61183a0a2ee9241a22588661f5efde (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
/*
 * QTest testcase for Realtek 8139 NIC
 *
 * Copyright (c) 2013-2014 SUSE LINUX Products GmbH
 *
 * This work is licensed under the terms of the GNU GPL, version 2 or later.
 * See the COPYING file in the top-level directory.
 */

#include <glib.h>
#include <string.h>
#include "libqtest.h"
#include "libqos/pci-pc.h"
#include "qemu/osdep.h"
#include "qemu/timer.h"
#include "qemu-common.h"

/* Tests only initialization so far. TODO: Replace with functional tests */
static void nop(void)
{
}

#define CLK 33000000

static QPCIBus *pcibus;
static QPCIDevice *dev;
static void *dev_base;

static void save_fn(QPCIDevice *dev, int devfn, void *data)
{
    QPCIDevice **pdev = (QPCIDevice **) data;

    *pdev = dev;
}

static QPCIDevice *get_device(void)
{
    QPCIDevice *dev;

    pcibus = qpci_init_pc();
    qpci_device_foreach(pcibus, 0x10ec, 0x8139, save_fn, &dev);
    g_assert(dev != NULL);

    return dev;
}

#define PORT(name, len, val) \
static unsigned __attribute__((unused)) in_##name(void) \
{ \
    unsigned res = qpci_io_read##len(dev, dev_base+(val)); \
    g_test_message("*%s -> %x\n", #name, res); \
    return res; \
} \
static void out_##name(unsigned v) \
{ \
    g_test_message("%x -> *%s\n", v, #name); \
    qpci_io_write##len(dev, dev_base+(val), v); \
}

PORT(Timer, l, 0x48)
PORT(IntrMask, w, 0x3c)
PORT(IntrStatus, w, 0x3E)
PORT(TimerInt, l, 0x54)

#define fatal(...) do { g_test_message(__VA_ARGS__); g_assert(0); } while (0)

static void test_timer(void)
{
    const unsigned from = 0.95 * CLK;
    const unsigned to = 1.6 * CLK;
    unsigned prev, curr, next;
    unsigned cnt, diff;

    out_IntrMask(0);

    in_IntrStatus();
    in_Timer();
    in_Timer();

    /* Test 1. test counter continue and continue */
    out_TimerInt(0); /* disable timer */
    out_IntrStatus(0x4000);
    out_Timer(12345); /* reset timer to 0 */
    curr = in_Timer();
    if (curr > 0.1 * CLK) {
        fatal("time too big %u\n", curr);
    }
    for (cnt = 0; ; ) {
        clock_step(1 * NANOSECONDS_PER_SECOND);
        prev = curr;
        curr = in_Timer();

        /* test skip is in a specific range */
        diff = (curr-prev) & 0xffffffffu;
        if (diff < from || diff > to) {
            fatal("Invalid diff %u (%u-%u)\n", diff, from, to);
        }
        if (curr < prev && ++cnt == 3) {
            break;
        }
    }

    /* Test 2. Check we didn't get an interrupt with TimerInt == 0 */
    if (in_IntrStatus() & 0x4000) {
        fatal("got an interrupt\n");
    }

    /* Test 3. Setting TimerInt to 1 and Timer to 0 get interrupt */
    out_TimerInt(1);
    out_Timer(0);
    clock_step(40);
    if ((in_IntrStatus() & 0x4000) == 0) {
        fatal("we should have an interrupt here!\n");
    }

    /* Test 3. Check acknowledge */
    out_IntrStatus(0x4000);
    if (in_IntrStatus() & 0x4000) {
        fatal("got an interrupt\n");
    }

    /* Test. Status set after Timer reset */
    out_Timer(0);
    out_TimerInt(0);
    out_IntrStatus(0x4000);
    curr = in_Timer();
    out_TimerInt(curr + 0.5 * CLK);
    clock_step(1 * NANOSECONDS_PER_SECOND);
    out_Timer(0);
    if ((in_IntrStatus() & 0x4000) == 0) {
        fatal("we should have an interrupt here!\n");
    }

    /* Test. Status set after TimerInt reset */
    out_Timer(0);
    out_TimerInt(0);
    out_IntrStatus(0x4000);
    curr = in_Timer();
    out_TimerInt(curr + 0.5 * CLK);
    clock_step(1 * NANOSECONDS_PER_SECOND);
    out_TimerInt(0);
    if ((in_IntrStatus() & 0x4000) == 0) {
        fatal("we should have an interrupt here!\n");
    }

    /* Test 4. Increment TimerInt we should see an interrupt */
    curr = in_Timer();
    next = curr + 5.0 * CLK;
    out_TimerInt(next);
    for (cnt = 0; ; ) {
        clock_step(1 * NANOSECONDS_PER_SECOND);
        prev = curr;
        curr = in_Timer();
        diff = (curr-prev) & 0xffffffffu;
        if (diff < from || diff > to) {
            fatal("Invalid diff %u (%u-%u)\n", diff, from, to);
        }
        if (cnt < 3 && curr > next) {
            if ((in_IntrStatus() & 0x4000) == 0) {
                fatal("we should have an interrupt here!\n");
            }
            out_IntrStatus(0x4000);
            next = curr + 5.0 * CLK;
            out_TimerInt(next);
            if (++cnt == 3) {
                out_TimerInt(1);
            }
        /* Test 5. Second time we pass from 0 should see an interrupt */
        } else if (cnt >= 3 && curr < prev) {
            /* here we should have an interrupt */
            if ((in_IntrStatus() & 0x4000) == 0) {
                fatal("we should have an interrupt here!\n");
            }
            out_IntrStatus(0x4000);
            if (++cnt == 5) {
                break;
            }
        }
    }

    g_test_message("Everythink is ok!\n");
}


static void test_init(void)
{
    uint64_t barsize;

    dev = get_device();

    dev_base = qpci_iomap(dev, 0, &barsize);

    g_assert(dev_base != NULL);

    qpci_device_enable(dev);

    test_timer();
}

int main(int argc, char **argv)
{
    int ret;

    g_test_init(&argc, &argv, NULL);
    qtest_add_func("/rtl8139/nop", nop);
    qtest_add_func("/rtl8139/timer", test_init);

    qtest_start("-device rtl8139");
    ret = g_test_run();

    qtest_end();

    return ret;
}