cirrus: fix off-by-one in cirrus_bitblt_rop_bkwd_transp_*_16
[qemu.git] / tests / m48t59-test.c
1 /*
2 * QTest testcase for the M48T59 and M48T08 real-time clocks
3 *
4 * Based on MC146818 RTC test:
5 * Copyright IBM, Corp. 2012
6 *
7 * Authors:
8 * Anthony Liguori <aliguori@us.ibm.com>
9 *
10 * This work is licensed under the terms of the GNU GPL, version 2 or later.
11 * See the COPYING file in the top-level directory.
12 *
13 */
14
15 #include "qemu/osdep.h"
16
17 #include "libqtest.h"
18
19 #define RTC_SECONDS 0x9
20 #define RTC_MINUTES 0xa
21 #define RTC_HOURS 0xb
22
23 #define RTC_DAY_OF_WEEK 0xc
24 #define RTC_DAY_OF_MONTH 0xd
25 #define RTC_MONTH 0xe
26 #define RTC_YEAR 0xf
27
28 static uint32_t base;
29 static uint16_t reg_base = 0x1ff0; /* 0x7f0 for m48t02 */
30 static int base_year;
31 static bool use_mmio;
32
33 static uint8_t cmos_read_mmio(uint8_t reg)
34 {
35 return readb(base + (uint32_t)reg_base + (uint32_t)reg);
36 }
37
38 static void cmos_write_mmio(uint8_t reg, uint8_t val)
39 {
40 uint8_t data = val;
41
42 writeb(base + (uint32_t)reg_base + (uint32_t)reg, data);
43 }
44
45 static uint8_t cmos_read_ioio(uint8_t reg)
46 {
47 outw(base + 0, reg_base + (uint16_t)reg);
48 return inb(base + 3);
49 }
50
51 static void cmos_write_ioio(uint8_t reg, uint8_t val)
52 {
53 outw(base + 0, reg_base + (uint16_t)reg);
54 outb(base + 3, val);
55 }
56
57 static uint8_t cmos_read(uint8_t reg)
58 {
59 if (use_mmio) {
60 return cmos_read_mmio(reg);
61 } else {
62 return cmos_read_ioio(reg);
63 }
64 }
65
66 static void cmos_write(uint8_t reg, uint8_t val)
67 {
68 if (use_mmio) {
69 cmos_write_mmio(reg, val);
70 } else {
71 cmos_write_ioio(reg, val);
72 }
73 }
74
75 static int bcd2dec(int value)
76 {
77 return (((value >> 4) & 0x0F) * 10) + (value & 0x0F);
78 }
79
80 static int tm_cmp(struct tm *lhs, struct tm *rhs)
81 {
82 time_t a, b;
83 struct tm d1, d2;
84
85 memcpy(&d1, lhs, sizeof(d1));
86 memcpy(&d2, rhs, sizeof(d2));
87
88 a = mktime(&d1);
89 b = mktime(&d2);
90
91 if (a < b) {
92 return -1;
93 } else if (a > b) {
94 return 1;
95 }
96
97 return 0;
98 }
99
100 #if 0
101 static void print_tm(struct tm *tm)
102 {
103 printf("%04d-%02d-%02d %02d:%02d:%02d %+02ld\n",
104 tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday,
105 tm->tm_hour, tm->tm_min, tm->tm_sec, tm->tm_gmtoff);
106 }
107 #endif
108
109 static void cmos_get_date_time(struct tm *date)
110 {
111 int sec, min, hour, mday, mon, year;
112 time_t ts;
113 struct tm dummy;
114
115 sec = cmos_read(RTC_SECONDS);
116 min = cmos_read(RTC_MINUTES);
117 hour = cmos_read(RTC_HOURS);
118 mday = cmos_read(RTC_DAY_OF_MONTH);
119 mon = cmos_read(RTC_MONTH);
120 year = cmos_read(RTC_YEAR);
121
122 sec = bcd2dec(sec);
123 min = bcd2dec(min);
124 hour = bcd2dec(hour);
125 mday = bcd2dec(mday);
126 mon = bcd2dec(mon);
127 year = bcd2dec(year);
128
129 ts = time(NULL);
130 localtime_r(&ts, &dummy);
131
132 date->tm_isdst = dummy.tm_isdst;
133 date->tm_sec = sec;
134 date->tm_min = min;
135 date->tm_hour = hour;
136 date->tm_mday = mday;
137 date->tm_mon = mon - 1;
138 date->tm_year = base_year + year - 1900;
139 #ifndef __sun__
140 date->tm_gmtoff = 0;
141 #endif
142
143 ts = mktime(date);
144 }
145
146 static void check_time(int wiggle)
147 {
148 struct tm start, date[4], end;
149 struct tm *datep;
150 time_t ts;
151
152 /*
153 * This check assumes a few things. First, we cannot guarantee that we get
154 * a consistent reading from the wall clock because we may hit an edge of
155 * the clock while reading. To work around this, we read four clock readings
156 * such that at least two of them should match. We need to assume that one
157 * reading is corrupt so we need four readings to ensure that we have at
158 * least two consecutive identical readings
159 *
160 * It's also possible that we'll cross an edge reading the host clock so
161 * simply check to make sure that the clock reading is within the period of
162 * when we expect it to be.
163 */
164
165 ts = time(NULL);
166 gmtime_r(&ts, &start);
167
168 cmos_get_date_time(&date[0]);
169 cmos_get_date_time(&date[1]);
170 cmos_get_date_time(&date[2]);
171 cmos_get_date_time(&date[3]);
172
173 ts = time(NULL);
174 gmtime_r(&ts, &end);
175
176 if (tm_cmp(&date[0], &date[1]) == 0) {
177 datep = &date[0];
178 } else if (tm_cmp(&date[1], &date[2]) == 0) {
179 datep = &date[1];
180 } else if (tm_cmp(&date[2], &date[3]) == 0) {
181 datep = &date[2];
182 } else {
183 g_assert_not_reached();
184 }
185
186 if (!(tm_cmp(&start, datep) <= 0 && tm_cmp(datep, &end) <= 0)) {
187 long t, s;
188
189 start.tm_isdst = datep->tm_isdst;
190
191 t = (long)mktime(datep);
192 s = (long)mktime(&start);
193 if (t < s) {
194 g_test_message("RTC is %ld second(s) behind wall-clock\n", (s - t));
195 } else {
196 g_test_message("RTC is %ld second(s) ahead of wall-clock\n", (t - s));
197 }
198
199 g_assert_cmpint(ABS(t - s), <=, wiggle);
200 }
201 }
202
203 static int wiggle = 2;
204
205 static void bcd_check_time(void)
206 {
207 if (strcmp(qtest_get_arch(), "sparc64") == 0) {
208 base = 0x74;
209 base_year = 1900;
210 use_mmio = false;
211 } else if (strcmp(qtest_get_arch(), "sparc") == 0) {
212 base = 0x71200000;
213 base_year = 1968;
214 use_mmio = true;
215 } else { /* PPC: need to map macio in PCI */
216 g_assert_not_reached();
217 }
218 check_time(wiggle);
219 }
220
221 /* success if no crash or abort */
222 static void fuzz_registers(void)
223 {
224 unsigned int i;
225
226 for (i = 0; i < 1000; i++) {
227 uint8_t reg, val;
228
229 reg = (uint8_t)g_test_rand_int_range(0, 16);
230 val = (uint8_t)g_test_rand_int_range(0, 256);
231
232 if (reg == 7) {
233 /* watchdog setup register, may trigger system reset, skip */
234 continue;
235 }
236
237 cmos_write(reg, val);
238 cmos_read(reg);
239 }
240 }
241
242 int main(int argc, char **argv)
243 {
244 QTestState *s = NULL;
245 int ret;
246
247 g_test_init(&argc, &argv, NULL);
248
249 s = qtest_start("-rtc clock=vm");
250
251 qtest_add_func("/rtc/bcd/check-time", bcd_check_time);
252 qtest_add_func("/rtc/fuzz-registers", fuzz_registers);
253 ret = g_test_run();
254
255 if (s) {
256 qtest_quit(s);
257 }
258
259 return ret;
260 }