2 * Copyright (c) 2014 Google, Inc
3 * Written by Simon Glass <sjg@chromium.org>
5 * SPDX-License-Identifier: GPL-2.0+
14 #include <video_console.h>
16 #include <dm/uclass-internal.h>
20 * These tests use the standard sandbox frame buffer, the resolution of which
21 * is defined in the device tree. This only supports 16bpp so the tests only
22 * test that code path. It would be possible to adjust this fairly easily,
23 * by adjusting the bpix value in struct sandbox_sdl_plat. However the code
24 * in sandbox_sdl_sync() would also need to change to handle the different
27 DECLARE_GLOBAL_DATA_PTR;
29 /* Basic test of the video uclass */
30 static int dm_test_video_base(struct unit_test_state *uts)
32 struct video_priv *priv;
35 ut_assertok(uclass_get_device(UCLASS_VIDEO, 0, &dev));
36 ut_asserteq(1366, video_get_xsize(dev));
37 ut_asserteq(768, video_get_ysize(dev));
38 priv = dev_get_uclass_priv(dev);
39 ut_asserteq(priv->fb_size, 1366 * 768 * 2);
43 DM_TEST(dm_test_video_base, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
46 * compress_frame_buffer() - Compress the frame buffer and return its size
48 * We want to write tests which perform operations on the video console and
49 * check that the frame buffer ends up with the correct contents. But it is
50 * painful to store 'known good' images for comparison with the frame
51 * buffer. As an alternative, we can compress the frame buffer and check the
52 * size of the compressed data. This provides a pretty good level of
53 * certainty and the resulting tests need only check a single value.
56 * @return compressed size of the frame buffer, or -ve on error
58 static int compress_frame_buffer(struct udevice *dev)
60 struct video_priv *priv = dev_get_uclass_priv(dev);
65 destlen = priv->fb_size;
66 dest = malloc(priv->fb_size);
69 ret = BZ2_bzBuffToBuffCompress(dest, &destlen,
70 priv->fb, priv->fb_size,
80 * Call this function at any point to halt and show the current display. Be
81 * sure to run the test with the -l flag.
83 static void __maybe_unused see_output(void)
89 /* Select the video console driver to use for a video device */
90 static int select_vidconsole(struct unit_test_state *uts, const char *drv_name)
92 struct sandbox_sdl_plat *plat;
95 ut_assertok(uclass_find_device(UCLASS_VIDEO, 0, &dev));
96 ut_assert(!device_active(dev));
97 plat = dev_get_platdata(dev);
98 plat->vidconsole_drv_name = "vidconsole0";
103 /* Test text output works on the video console */
104 static int dm_test_video_text(struct unit_test_state *uts)
106 struct udevice *dev, *con;
110 #define SCROLL_LINES 100
112 ut_assertok(select_vidconsole(uts, "vidconsole0"));
113 ut_assertok(uclass_get_device(UCLASS_VIDEO, 0, &dev));
114 ut_asserteq(46, compress_frame_buffer(dev));
116 ut_assertok(uclass_get_device(UCLASS_VIDEO_CONSOLE, 0, &con));
117 vidconsole_putc_xy(con, 0, 0, 'a');
118 ut_asserteq(79, compress_frame_buffer(dev));
120 vidconsole_putc_xy(con, 0, 0, ' ');
121 ut_asserteq(46, compress_frame_buffer(dev));
123 for (i = 0; i < 20; i++)
124 vidconsole_putc_xy(con, VID_TO_POS(i * 8), 0, ' ' + i);
125 ut_asserteq(273, compress_frame_buffer(dev));
127 vidconsole_set_row(con, 0, WHITE);
128 ut_asserteq(46, compress_frame_buffer(dev));
130 for (i = 0; i < 20; i++)
131 vidconsole_putc_xy(con, VID_TO_POS(i * 8), 0, ' ' + i);
132 ut_asserteq(273, compress_frame_buffer(dev));
136 DM_TEST(dm_test_video_text, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
138 /* Test handling of special characters in the console */
139 static int dm_test_video_chars(struct unit_test_state *uts)
141 struct udevice *dev, *con;
142 const char *test_string = "Well\b\b\b\bxhe is\r \n\ta very \amodest \bman\n\t\tand Has much to\b\bto be modest about.";
145 ut_assertok(select_vidconsole(uts, "vidconsole0"));
146 ut_assertok(uclass_get_device(UCLASS_VIDEO, 0, &dev));
147 ut_assertok(uclass_get_device(UCLASS_VIDEO_CONSOLE, 0, &con));
148 for (s = test_string; *s; s++)
149 vidconsole_put_char(con, *s);
150 ut_asserteq(466, compress_frame_buffer(dev));
154 DM_TEST(dm_test_video_chars, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
157 * check_vidconsole_output() - Run a text console test
160 * @rot: Console rotation (0, 90, 180, 270)
161 * @wrap_size: Expected size of compressed frame buffer for the wrap test
162 * @scroll_size: Same for the scroll test
163 * @return 0 on success
165 static int check_vidconsole_output(struct unit_test_state *uts, int rot,
166 int wrap_size, int scroll_size)
168 struct udevice *dev, *con;
169 struct sandbox_sdl_plat *plat;
172 ut_assertok(uclass_find_device(UCLASS_VIDEO, 0, &dev));
173 ut_assert(!device_active(dev));
174 plat = dev_get_platdata(dev);
177 ut_assertok(uclass_get_device(UCLASS_VIDEO, 0, &dev));
178 ut_assertok(uclass_get_device(UCLASS_VIDEO_CONSOLE, 0, &con));
179 ut_asserteq(46, compress_frame_buffer(dev));
181 /* Check display wrap */
182 for (i = 0; i < 120; i++)
183 vidconsole_put_char(con, 'A' + i % 50);
184 ut_asserteq(wrap_size, compress_frame_buffer(dev));
186 /* Check display scrolling */
187 for (i = 0; i < SCROLL_LINES; i++) {
188 vidconsole_put_char(con, 'A' + i % 50);
189 vidconsole_put_char(con, '\n');
191 ut_asserteq(scroll_size, compress_frame_buffer(dev));
193 /* If we scroll enough, the screen becomes blank again */
194 for (i = 0; i < SCROLL_LINES; i++)
195 vidconsole_put_char(con, '\n');
196 ut_asserteq(46, compress_frame_buffer(dev));
201 /* Test text output through the console uclass */
202 static int dm_test_video_context(struct unit_test_state *uts)
204 ut_assertok(select_vidconsole(uts, "vidconsole0"));
205 ut_assertok(check_vidconsole_output(uts, 0, 788, 453));
209 DM_TEST(dm_test_video_context, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
211 /* Test rotated text output through the console uclass */
212 static int dm_test_video_rotation1(struct unit_test_state *uts)
214 ut_assertok(check_vidconsole_output(uts, 1, 1112, 680));
218 DM_TEST(dm_test_video_rotation1, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
220 /* Test rotated text output through the console uclass */
221 static int dm_test_video_rotation2(struct unit_test_state *uts)
223 ut_assertok(check_vidconsole_output(uts, 2, 785, 446));
227 DM_TEST(dm_test_video_rotation2, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
229 /* Test rotated text output through the console uclass */
230 static int dm_test_video_rotation3(struct unit_test_state *uts)
232 ut_assertok(check_vidconsole_output(uts, 3, 1134, 681));
236 DM_TEST(dm_test_video_rotation3, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
238 /* Read a file into memory and return a pointer to it */
239 static int read_file(struct unit_test_state *uts, const char *fname,
242 int buf_size = 100000;
247 buf = map_sysmem(addr, 0);
248 ut_assert(buf != NULL);
249 fd = os_open(fname, OS_O_RDONLY);
251 size = os_read(fd, buf, buf_size);
252 ut_assert(size >= 0);
253 ut_assert(size < buf_size);
260 /* Test drawing a bitmap file */
261 static int dm_test_video_bmp(struct unit_test_state *uts)
266 ut_assertok(uclass_get_device(UCLASS_VIDEO, 0, &dev));
267 ut_assertok(read_file(uts, "tools/logos/denx.bmp", &addr));
269 ut_assertok(video_bmp_display(dev, addr, 0, 0, false));
270 ut_asserteq(1368, compress_frame_buffer(dev));
274 DM_TEST(dm_test_video_bmp, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
276 /* Test drawing a compressed bitmap file */
277 static int dm_test_video_bmp_comp(struct unit_test_state *uts)
282 ut_assertok(uclass_get_device(UCLASS_VIDEO, 0, &dev));
283 ut_assertok(read_file(uts, "tools/logos/denx-comp.bmp", &addr));
285 ut_assertok(video_bmp_display(dev, addr, 0, 0, false));
286 ut_asserteq(1368, compress_frame_buffer(dev));
290 DM_TEST(dm_test_video_bmp_comp, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);