timer: Use a single definition of NSEC_PER_SEC for the whole codebase
[qemu.git] / tests / rtl8139-test.c
1 /*
2 * QTest testcase for Realtek 8139 NIC
3 *
4 * Copyright (c) 2013-2014 SUSE LINUX Products GmbH
5 *
6 * This work is licensed under the terms of the GNU GPL, version 2 or later.
7 * See the COPYING file in the top-level directory.
8 */
9
10 #include <glib.h>
11 #include <string.h>
12 #include "libqtest.h"
13 #include "libqos/pci-pc.h"
14 #include "qemu/osdep.h"
15 #include "qemu/timer.h"
16 #include "qemu-common.h"
17
18 /* Tests only initialization so far. TODO: Replace with functional tests */
19 static void nop(void)
20 {
21 }
22
23 #define CLK 33000000
24
25 static QPCIBus *pcibus;
26 static QPCIDevice *dev;
27 static void *dev_base;
28
29 static void save_fn(QPCIDevice *dev, int devfn, void *data)
30 {
31 QPCIDevice **pdev = (QPCIDevice **) data;
32
33 *pdev = dev;
34 }
35
36 static QPCIDevice *get_device(void)
37 {
38 QPCIDevice *dev;
39
40 pcibus = qpci_init_pc();
41 qpci_device_foreach(pcibus, 0x10ec, 0x8139, save_fn, &dev);
42 g_assert(dev != NULL);
43
44 return dev;
45 }
46
47 #define PORT(name, len, val) \
48 static unsigned __attribute__((unused)) in_##name(void) \
49 { \
50 unsigned res = qpci_io_read##len(dev, dev_base+(val)); \
51 g_test_message("*%s -> %x\n", #name, res); \
52 return res; \
53 } \
54 static void out_##name(unsigned v) \
55 { \
56 g_test_message("%x -> *%s\n", v, #name); \
57 qpci_io_write##len(dev, dev_base+(val), v); \
58 }
59
60 PORT(Timer, l, 0x48)
61 PORT(IntrMask, w, 0x3c)
62 PORT(IntrStatus, w, 0x3E)
63 PORT(TimerInt, l, 0x54)
64
65 #define fatal(...) do { g_test_message(__VA_ARGS__); g_assert(0); } while (0)
66
67 static void test_timer(void)
68 {
69 const unsigned from = 0.95 * CLK;
70 const unsigned to = 1.6 * CLK;
71 unsigned prev, curr, next;
72 unsigned cnt, diff;
73
74 out_IntrMask(0);
75
76 in_IntrStatus();
77 in_Timer();
78 in_Timer();
79
80 /* Test 1. test counter continue and continue */
81 out_TimerInt(0); /* disable timer */
82 out_IntrStatus(0x4000);
83 out_Timer(12345); /* reset timer to 0 */
84 curr = in_Timer();
85 if (curr > 0.1 * CLK) {
86 fatal("time too big %u\n", curr);
87 }
88 for (cnt = 0; ; ) {
89 clock_step(1 * NSEC_PER_SEC);
90 prev = curr;
91 curr = in_Timer();
92
93 /* test skip is in a specific range */
94 diff = (curr-prev) & 0xffffffffu;
95 if (diff < from || diff > to) {
96 fatal("Invalid diff %u (%u-%u)\n", diff, from, to);
97 }
98 if (curr < prev && ++cnt == 3) {
99 break;
100 }
101 }
102
103 /* Test 2. Check we didn't get an interrupt with TimerInt == 0 */
104 if (in_IntrStatus() & 0x4000) {
105 fatal("got an interrupt\n");
106 }
107
108 /* Test 3. Setting TimerInt to 1 and Timer to 0 get interrupt */
109 out_TimerInt(1);
110 out_Timer(0);
111 clock_step(40);
112 if ((in_IntrStatus() & 0x4000) == 0) {
113 fatal("we should have an interrupt here!\n");
114 }
115
116 /* Test 3. Check acknowledge */
117 out_IntrStatus(0x4000);
118 if (in_IntrStatus() & 0x4000) {
119 fatal("got an interrupt\n");
120 }
121
122 /* Test. Status set after Timer reset */
123 out_Timer(0);
124 out_TimerInt(0);
125 out_IntrStatus(0x4000);
126 curr = in_Timer();
127 out_TimerInt(curr + 0.5 * CLK);
128 clock_step(1 * NSEC_PER_SEC);
129 out_Timer(0);
130 if ((in_IntrStatus() & 0x4000) == 0) {
131 fatal("we should have an interrupt here!\n");
132 }
133
134 /* Test. Status set after TimerInt reset */
135 out_Timer(0);
136 out_TimerInt(0);
137 out_IntrStatus(0x4000);
138 curr = in_Timer();
139 out_TimerInt(curr + 0.5 * CLK);
140 clock_step(1 * NSEC_PER_SEC);
141 out_TimerInt(0);
142 if ((in_IntrStatus() & 0x4000) == 0) {
143 fatal("we should have an interrupt here!\n");
144 }
145
146 /* Test 4. Increment TimerInt we should see an interrupt */
147 curr = in_Timer();
148 next = curr + 5.0 * CLK;
149 out_TimerInt(next);
150 for (cnt = 0; ; ) {
151 clock_step(1 * NSEC_PER_SEC);
152 prev = curr;
153 curr = in_Timer();
154 diff = (curr-prev) & 0xffffffffu;
155 if (diff < from || diff > to) {
156 fatal("Invalid diff %u (%u-%u)\n", diff, from, to);
157 }
158 if (cnt < 3 && curr > next) {
159 if ((in_IntrStatus() & 0x4000) == 0) {
160 fatal("we should have an interrupt here!\n");
161 }
162 out_IntrStatus(0x4000);
163 next = curr + 5.0 * CLK;
164 out_TimerInt(next);
165 if (++cnt == 3) {
166 out_TimerInt(1);
167 }
168 /* Test 5. Second time we pass from 0 should see an interrupt */
169 } else if (cnt >= 3 && curr < prev) {
170 /* here we should have an interrupt */
171 if ((in_IntrStatus() & 0x4000) == 0) {
172 fatal("we should have an interrupt here!\n");
173 }
174 out_IntrStatus(0x4000);
175 if (++cnt == 5) {
176 break;
177 }
178 }
179 }
180
181 g_test_message("Everythink is ok!\n");
182 }
183
184
185 static void test_init(void)
186 {
187 uint64_t barsize;
188
189 dev = get_device();
190
191 dev_base = qpci_iomap(dev, 0, &barsize);
192
193 g_assert(dev_base != NULL);
194
195 qpci_device_enable(dev);
196
197 test_timer();
198 }
199
200 int main(int argc, char **argv)
201 {
202 int ret;
203
204 g_test_init(&argc, &argv, NULL);
205 qtest_add_func("/rtl8139/nop", nop);
206 qtest_add_func("/rtl8139/timer", test_init);
207
208 qtest_start("-device rtl8139");
209 ret = g_test_run();
210
211 qtest_end();
212
213 return ret;
214 }