int tc_main(int argc, char *argv[])
#endif
{
#ifdef CONFIG_EXAMPLES_TOUCHSCREEN_MOUSE
struct mouse_report_s sample;
#else
struct touch_sample_s sample;
#endif
ssize_t nbytes;
#if defined(CONFIG_NSH_BUILTIN_APPS) || CONFIG_EXAMPLES_TOUCHSCREEN_NSAMPLES > 0
long nsamples;
#endif
int fd;
int errval = 0;
#ifdef CONFIG_EXAMPLES_TOUCHSCREEN_ARCHINIT
int ret;
#endif
/* If this example is configured as an NX add-on, then limit the number of
* samples that we collect before returning. Otherwise, we never return
*/
#if defined(CONFIG_NSH_BUILTIN_APPS)
nsamples = 1;
if (argc > 1)
{
nsamples = strtol(argv[1], NULL, 10);
}
printf("tc_main: nsamples: %d\n", nsamples);
#elif CONFIG_EXAMPLES_TOUCHSCREEN_NSAMPLES > 0
printf("tc_main: nsamples: %d\n", CONFIG_EXAMPLES_TOUCHSCREEN_NSAMPLES);
#endif
#ifdef CONFIG_EXAMPLES_TOUCHSCREEN_ARCHINIT
/* Initialization of the touchscreen hardware is performed by logic
* external to this test.
*/
printf("tc_main: Initializing external touchscreen device\n");
ret = arch_tcinitialize(CONFIG_EXAMPLES_TOUCHSCREEN_MINOR);
if (ret != OK)
{
printf("tc_main: arch_tcinitialize failed: %d\n", ret);
errval = 1;
goto errout;
}
#endif
/* Open the touchscreen device for reading */
printf("tc_main: Opening %s\n", CONFIG_EXAMPLES_TOUCHSCREEN_DEVPATH);
fd = open(CONFIG_EXAMPLES_TOUCHSCREEN_DEVPATH, O_RDONLY);
if (fd < 0)
{
printf("tc_main: open %s failed: %d\n",
CONFIG_EXAMPLES_TOUCHSCREEN_DEVPATH, errno);
errval = 2;
goto errout_with_tc;
}
/* Now loop the appropriate number of times, displaying the collected
* touchscreen samples.
*/
#if defined(CONFIG_NSH_BUILTIN_APPS)
for (; nsamples > 0; nsamples--)
#elif CONFIG_EXAMPLES_TOUCHSCREEN_NSAMPLES > 0
for (nsamples = 0; nsamples < CONFIG_EXAMPLES_TOUCHSCREEN_NSAMPLES; nsamples++)
#else
for (;;)
#endif
{
/* Flush any output before the loop entered or from the previous pass
* through the loop.
*/
fflush(stdout);
#ifdef CONFIG_EXAMPLES_TOUCHSCREEN_MOUSE
/* Read one sample */
ivdbg("Reading...\n");
nbytes = read(fd, &sample, sizeof(struct mouse_report_s));
ivdbg("Bytes read: %d\n", nbytes);
/* Handle unexpected return values */
if (nbytes < 0)
{
errval = errno;
if (errval != EINTR)
{
printf("tc_main: read %s failed: %d\n",
CONFIG_EXAMPLES_TOUCHSCREEN_DEVPATH, errval);
errval = 3;
goto errout_with_dev;
}
printf("tc_main: Interrupted read...\n");
}
else if (nbytes != sizeof(struct mouse_report_s))
{
printf("tc_main: Unexpected read size=%d, expected=%d, Ignoring\n",
nbytes, sizeof(struct mouse_report_s));
}
/* Print the sample data on successful return */
else
{
printf("Sample :\n");
printf(" buttons : %02x\n", sample.buttons);
printf(" x : %d\n", sample.x);
printf(" y : %d\n", sample.y);
#ifdef CONFIG_MOUSE_WHEEL
printf(" wheel : %d\n", sample.wheel);
#endif
}
#else
/* Read one sample */
ivdbg("Reading...\n");
nbytes = read(fd, &sample, sizeof(struct touch_sample_s));
ivdbg("Bytes read: %d\n", nbytes);
/* Handle unexpected return values */
if (nbytes < 0)
{
errval = errno;
if (errval != EINTR)
{
printf("tc_main: read %s failed: %d\n",
CONFIG_EXAMPLES_TOUCHSCREEN_DEVPATH, errval);
errval = 3;
goto errout_with_dev;
}
printf("tc_main: Interrupted read...\n");
}
else if (nbytes != sizeof(struct touch_sample_s))
{
printf("tc_main: Unexpected read size=%d, expected=%d, Ignoring\n",
nbytes, sizeof(struct touch_sample_s));
}
/* Print the sample data on successful return */
else
{
printf("Sample :\n");
printf(" npoints : %d\n", sample.npoints);
printf("Point 1 :\n");
printf(" id : %d\n", sample.point[0].id);
printf(" flags : %02x\n", sample.point[0].flags);
printf(" x : %d\n", sample.point[0].x);
printf(" y : %d\n", sample.point[0].y);
printf(" h : %d\n", sample.point[0].h);
printf(" w : %d\n", sample.point[0].w);
printf(" pressure : %d\n", sample.point[0].pressure);
}
#endif
}
errout_with_dev:
close(fd);
errout_with_tc:
#ifdef CONFIG_EXAMPLES_TOUCHSCREEN_ARCHINIT
arch_tcuninitialize();
errout:
#endif
printf("Terminating!\n");
fflush(stdout);
return errval;
}
int arch_tcinitialize(int minor)
{
FAR NX_DRIVERTYPE *dev;
nxgl_mxpixel_t color;
int ret;
/* Initialize the simulated frame buffer device. We need to create an
* X11 window to support the mouse-driven touchscreen simulation.
*/
ivdbg("Initializing framebuffer\n");
ret = up_fbinitialize();
if (ret < 0)
{
idbg("up_fbinitialize failed: %d\n", -ret);
goto errout;
}
dev = up_fbgetvplane(0);
if (!dev)
{
idbg("up_fbgetvplane 0 failed\n");
ret = -ENODEV;
goto errout_with_fb;
}
/* Then open NX */
ivdbg("Open NX\n");
g_simtc.hnx = nx_open(dev);
if (!g_simtc.hnx)
{
ret = -errno;
idbg("nx_open failed: %d\n", ret);
goto errout_with_fb;
}
/* Set the background to the configured background color */
ivdbg("Set background color=%d\n", CONFIG_EXAMPLES_TOUCHSCREEN_BGCOLOR);
color = CONFIG_EXAMPLES_TOUCHSCREEN_BGCOLOR;
ret = nx_setbgcolor(g_simtc.hnx, &color);
if (ret < 0)
{
idbg("nx_setbgcolor failed: %d\n", ret);
goto errout_with_nx;
}
/* Finally, initialize the touchscreen simulation on the X window */
ret = arch_tcinitialize(minor);
if (ret < 0)
{
idbg("arch_tcinitialize failed: %d\n", ret);
goto errout_with_nx;
}
return OK;
errout_with_nx:
nx_close(g_simtc.hnx);
goto errout;
errout_with_fb:
fb_uninitialize();
errout:
return ret;
}