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/*
* Copyright (c) 2014 Google, Inc
* Written by Simon Glass <sjg@chromium.org>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <bzlib.h>
#include <dm.h>
#include <mapmem.h>
#include <os.h>
#include <video.h>
#include <video_console.h>
#include <dm/test.h>
#include <dm/uclass-internal.h>
#include <test/ut.h>
/*
* These tests use the standard sandbox frame buffer, the resolution of which
* is defined in the device tree. This only supports 16bpp so the tests only
* test that code path. It would be possible to adjust this fairly easily,
* by adjusting the bpix value in struct sandbox_sdl_plat. However the code
* in sandbox_sdl_sync() would also need to change to handle the different
* surface depth.
*/
DECLARE_GLOBAL_DATA_PTR;
/* Basic test of the video uclass */
static int dm_test_video_base(struct unit_test_state *uts)
{
struct video_priv *priv;
struct udevice *dev;
ut_assertok(uclass_get_device(UCLASS_VIDEO, 0, &dev));
ut_asserteq(1366, video_get_xsize(dev));
ut_asserteq(768, video_get_ysize(dev));
priv = dev_get_uclass_priv(dev);
ut_asserteq(priv->fb_size, 1366 * 768 * 2);
return 0;
}
DM_TEST(dm_test_video_base, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
/**
* compress_frame_buffer() - Compress the frame buffer and return its size
*
* We want to write tests which perform operations on the video console and
* check that the frame buffer ends up with the correct contents. But it is
* painful to store 'known good' images for comparison with the frame
* buffer. As an alternative, we can compress the frame buffer and check the
* size of the compressed data. This provides a pretty good level of
* certainty and the resulting tests need only check a single value.
*
* @dev: Video device
* @return compressed size of the frame buffer, or -ve on error
*/
static int compress_frame_buffer(struct udevice *dev)
{
struct video_priv *priv = dev_get_uclass_priv(dev);
uint destlen;
void *dest;
int ret;
destlen = priv->fb_size;
dest = malloc(priv->fb_size);
if (!dest)
return -ENOMEM;
ret = BZ2_bzBuffToBuffCompress(dest, &destlen,
priv->fb, priv->fb_size,
3, 0, 0);
free(dest);
if (ret)
return ret;
return destlen;
}
/*
* Call this function at any point to halt and show the current display. Be
* sure to run the test with the -l flag.
*/
static void __maybe_unused see_output(void)
{
video_sync_all();
while (1);
}
/* Test text output works on the video console */
static int dm_test_video_text(struct unit_test_state *uts)
{
struct udevice *dev, *con;
int i;
#define WHITE 0xffff
#define SCROLL_LINES 100
ut_assertok(uclass_get_device(UCLASS_VIDEO, 0, &dev));
ut_asserteq(46, compress_frame_buffer(dev));
ut_assertok(uclass_get_device(UCLASS_VIDEO_CONSOLE, 0, &con));
vidconsole_putc_xy(con, 0, 0, 'a');
ut_asserteq(79, compress_frame_buffer(dev));
vidconsole_putc_xy(con, 0, 0, ' ');
ut_asserteq(46, compress_frame_buffer(dev));
for (i = 0; i < 20; i++)
vidconsole_putc_xy(con, i * 8, 0, ' ' + i);
ut_asserteq(273, compress_frame_buffer(dev));
vidconsole_set_row(con, 0, WHITE);
ut_asserteq(46, compress_frame_buffer(dev));
for (i = 0; i < 20; i++)
vidconsole_putc_xy(con, i * 8, 0, ' ' + i);
ut_asserteq(273, compress_frame_buffer(dev));
return 0;
}
DM_TEST(dm_test_video_text, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
/* Test handling of special characters in the console */
static int dm_test_video_chars(struct unit_test_state *uts)
{
struct udevice *dev, *con;
const char *test_string = "Well\b\b\b\bxhe is\r \n\ta very modest \bman\n\t\tand Has much to\b\bto be modest about.";
const char *s;
ut_assertok(uclass_get_device(UCLASS_VIDEO, 0, &dev));
ut_assertok(uclass_get_device(UCLASS_VIDEO_CONSOLE, 0, &con));
for (s = test_string; *s; s++)
vidconsole_put_char(con, *s);
ut_asserteq(466, compress_frame_buffer(dev));
return 0;
}
DM_TEST(dm_test_video_chars, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
/**
* check_vidconsole_output() - Run a text console test
*
* @uts: Test state
* @rot: Console rotation (0, 90, 180, 270)
* @wrap_size: Expected size of compressed frame buffer for the wrap test
* @scroll_size: Same for the scroll test
* @return 0 on success
*/
static int check_vidconsole_output(struct unit_test_state *uts, int rot,
int wrap_size, int scroll_size)
{
struct udevice *dev, *con;
struct sandbox_sdl_plat *plat;
int i;
ut_assertok(uclass_find_device(UCLASS_VIDEO, 0, &dev));
ut_assert(!device_active(dev));
plat = dev_get_platdata(dev);
plat->rot = rot;
ut_assertok(uclass_get_device(UCLASS_VIDEO, 0, &dev));
ut_assertok(uclass_get_device(UCLASS_VIDEO_CONSOLE, 0, &con));
ut_asserteq(46, compress_frame_buffer(dev));
/* Check display wrap */
for (i = 0; i < 120; i++)
vidconsole_put_char(con, 'A' + i % 50);
ut_asserteq(wrap_size, compress_frame_buffer(dev));
/* Check display scrolling */
for (i = 0; i < SCROLL_LINES; i++) {
vidconsole_put_char(con, 'A' + i % 50);
vidconsole_put_char(con, '\n');
}
ut_asserteq(scroll_size, compress_frame_buffer(dev));
/* If we scroll enough, the screen becomes blank again */
for (i = 0; i < SCROLL_LINES; i++)
vidconsole_put_char(con, '\n');
ut_asserteq(46, compress_frame_buffer(dev));
return 0;
}
/* Test text output through the console uclass */
static int dm_test_video_context(struct unit_test_state *uts)
{
return check_vidconsole_output(uts, 0, 788, 453);
}
DM_TEST(dm_test_video_context, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
/* Test rotated text output through the console uclass */
static int dm_test_video_rotation1(struct unit_test_state *uts)
{
ut_assertok(check_vidconsole_output(uts, 1, 1112, 680));
return 0;
}
DM_TEST(dm_test_video_rotation1, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
/* Test rotated text output through the console uclass */
static int dm_test_video_rotation2(struct unit_test_state *uts)
{
ut_assertok(check_vidconsole_output(uts, 2, 785, 446));
return 0;
}
DM_TEST(dm_test_video_rotation2, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
/* Test rotated text output through the console uclass */
static int dm_test_video_rotation3(struct unit_test_state *uts)
{
ut_assertok(check_vidconsole_output(uts, 3, 1134, 681));
return 0;
}
DM_TEST(dm_test_video_rotation3, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
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