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10#include "qemu/osdep.h"
11#include "libqtest-single.h"
12#include "libqos/pci-pc.h"
13#include "qemu/timer.h"
14
15
16static void nop(void)
17{
18}
19
20#define CLK 33333333
21
22static QPCIBus *pcibus;
23static QPCIDevice *dev;
24static QPCIBar dev_bar;
25
26static void save_fn(QPCIDevice *dev, int devfn, void *data)
27{
28 QPCIDevice **pdev = (QPCIDevice **) data;
29
30 *pdev = dev;
31}
32
33static QPCIDevice *get_device(void)
34{
35 QPCIDevice *dev;
36
37 pcibus = qpci_new_pc(global_qtest, NULL);
38 qpci_device_foreach(pcibus, 0x10ec, 0x8139, save_fn, &dev);
39 g_assert(dev != NULL);
40
41 return dev;
42}
43
44#define PORT(name, len, val) \
45static unsigned __attribute__((unused)) in_##name(void) \
46{ \
47 unsigned res = qpci_io_read##len(dev, dev_bar, (val)); \
48 g_test_message("*%s -> %x", #name, res); \
49 return res; \
50} \
51static void out_##name(unsigned v) \
52{ \
53 g_test_message("%x -> *%s", v, #name); \
54 qpci_io_write##len(dev, dev_bar, (val), v); \
55}
56
57PORT(Timer, l, 0x48)
58PORT(IntrMask, w, 0x3c)
59PORT(IntrStatus, w, 0x3E)
60PORT(TimerInt, l, 0x54)
61
62#define fatal(...) do { g_test_message(__VA_ARGS__); g_assert(0); } while (0)
63
64static void test_timer(void)
65{
66 const unsigned from = 0.95 * CLK;
67 const unsigned to = 1.6 * CLK;
68 unsigned prev, curr, next;
69 unsigned cnt, diff;
70
71 out_IntrMask(0);
72
73 in_IntrStatus();
74 in_Timer();
75 in_Timer();
76
77
78 out_TimerInt(0);
79 out_IntrStatus(0x4000);
80 out_Timer(12345);
81 curr = in_Timer();
82 if (curr > 0.1 * CLK) {
83 fatal("time too big %u\n", curr);
84 }
85 for (cnt = 0; ; ) {
86 clock_step(1 * NANOSECONDS_PER_SECOND);
87 prev = curr;
88 curr = in_Timer();
89
90
91 diff = (curr-prev) & 0xffffffffu;
92 if (diff < from || diff > to) {
93 fatal("Invalid diff %u (%u-%u)\n", diff, from, to);
94 }
95 if (curr < prev && ++cnt == 3) {
96 break;
97 }
98 }
99
100
101 if (in_IntrStatus() & 0x4000) {
102 fatal("got an interrupt\n");
103 }
104
105
106 out_TimerInt(1);
107 out_Timer(0);
108 clock_step(40);
109 if ((in_IntrStatus() & 0x4000) == 0) {
110 fatal("we should have an interrupt here!\n");
111 }
112
113
114 out_IntrStatus(0x4000);
115 if (in_IntrStatus() & 0x4000) {
116 fatal("got an interrupt\n");
117 }
118
119
120 out_Timer(0);
121 out_TimerInt(0);
122 out_IntrStatus(0x4000);
123 curr = in_Timer();
124 out_TimerInt(curr + 0.5 * CLK);
125 clock_step(1 * NANOSECONDS_PER_SECOND);
126 out_Timer(0);
127 if ((in_IntrStatus() & 0x4000) == 0) {
128 fatal("we should have an interrupt here!\n");
129 }
130
131
132 out_Timer(0);
133 out_TimerInt(0);
134 out_IntrStatus(0x4000);
135 curr = in_Timer();
136 out_TimerInt(curr + 0.5 * CLK);
137 clock_step(1 * NANOSECONDS_PER_SECOND);
138 out_TimerInt(0);
139 if ((in_IntrStatus() & 0x4000) == 0) {
140 fatal("we should have an interrupt here!\n");
141 }
142
143
144 curr = in_Timer();
145 next = curr + 5.0 * CLK;
146 out_TimerInt(next);
147 for (cnt = 0; ; ) {
148 clock_step(1 * NANOSECONDS_PER_SECOND);
149 prev = curr;
150 curr = in_Timer();
151 diff = (curr-prev) & 0xffffffffu;
152 if (diff < from || diff > to) {
153 fatal("Invalid diff %u (%u-%u)\n", diff, from, to);
154 }
155 if (cnt < 3 && curr > next) {
156 if ((in_IntrStatus() & 0x4000) == 0) {
157 fatal("we should have an interrupt here!\n");
158 }
159 out_IntrStatus(0x4000);
160 next = curr + 5.0 * CLK;
161 out_TimerInt(next);
162 if (++cnt == 3) {
163 out_TimerInt(1);
164 }
165
166 } else if (cnt >= 3 && curr < prev) {
167
168 if ((in_IntrStatus() & 0x4000) == 0) {
169 fatal("we should have an interrupt here!\n");
170 }
171 out_IntrStatus(0x4000);
172 if (++cnt == 5) {
173 break;
174 }
175 }
176 }
177
178 g_test_message("Everythink is ok!");
179}
180
181
182static void test_init(void)
183{
184 uint64_t barsize;
185
186 dev = get_device();
187
188 dev_bar = qpci_iomap(dev, 0, &barsize);
189
190 qpci_device_enable(dev);
191
192 test_timer();
193}
194
195int main(int argc, char **argv)
196{
197 int ret;
198
199 qtest_start("-device rtl8139");
200
201 g_test_init(&argc, &argv, NULL);
202 qtest_add_func("/rtl8139/nop", nop);
203 qtest_add_func("/rtl8139/timer", test_init);
204
205 ret = g_test_run();
206
207 qtest_end();
208
209 return ret;
210}
211