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#include <errno.h>
#include <string.h>
#include "error.h"
#include "pervasive.h"
#include "axis.h"
#include "config.h"
static int reach_next_line_or_eof (FILE * const f)
{
char c;
c = getc(f);
while ((c != '\n') && c != EOF)
{
c = getc(f);
}
if (c == EOF)
{
return -1;
}
return 0;
}
static int all_axis_are_configured (const int * const axis_is_configured)
{
int i;
for (i = 0; i < 6; ++i)
{
if (axis_is_configured[i] == 0)
{
_FATAL
(
"[CONFIG] Axis '%s' is not configured.",
relabsd_axis_enum_to_name((enum relabsd_axis) i)
);
return -1;
}
}
return 0;
}
static int parse_axis_configuration_line
(
struct relabsd_config * const conf,
FILE * const f,
int * const axis_is_configured,
char * const buffer
)
{
int valc;
enum relabsd_axis axis;
axis = relabsd_axis_name_to_enum(buffer);
if (axis == RELABSD_UNKNOWN)
{
_FATAL
(
"[CONFIG] Unknown axis '%s'.",
buffer
);
return -1;
}
valc =
fscanf
(
f,
"%d %d %d %d %d",
&(conf->axis[axis].min),
&(conf->axis[axis].max),
&(conf->axis[axis].fuzz),
&(conf->axis[axis].flat),
&(conf->axis[axis].resolution)
);
if (valc == EOF)
{
_FATAL
(
"[CONFIG] Unexpected end of file while reading axis '%s'.",
buffer
);
return -1;
}
else if (valc < 5)
{
_FATAL
(
"[CONFIG] Invalid parameter count for axis '%s'.",
buffer
);
return -1;
}
axis_is_configured[axis] = 1;
return 0;
}
static int read_config_file
(
struct relabsd_config * const conf,
char * const filename
)
{
FILE * f;
int axis_is_configured[6];
char buffer[3];
int test;
buffer[2] = '\0';
memset(axis_is_configured, 0, 6 * sizeof(int));
f = fopen(filename, "r");
if (f == (FILE *) NULL)
{
_FATAL
(
"[CONFIG] Could not open file: %s.",
strerror(errno)
);
return -1;
}
errno = 0;
while ((test = fscanf(f, "%2s", buffer)) > 0)
{
if (_IS_PREFIX("#", buffer))
{
if (reach_next_line_or_eof(f) < 0)
{
break;
}
}
else
{
if
(
parse_axis_configuration_line
(
conf,
f,
axis_is_configured,
buffer
)
< 0
)
{
break;
}
if (reach_next_line_or_eof(f) < 0)
{
break;
}
}
}
if (test < 0 && errno != 0)
{
_FATAL
(
"[CONFIG] Error while reading file: %s, last read '%s'.",
strerror(errno),
buffer
);
fclose(f);
return -1;
}
fclose(f);
if (all_axis_are_configured(axis_is_configured) < 0)
{
return -1;
}
return 0;
}
int relabsd_config_parse
(
struct relabsd_config * const conf,
int const argc,
char ** const argv
)
{
if ((argc < 3) || (argc > 4))
{
_FATAL
(
"Usage: %s input_device config_file [<relabsd_device_name>]",
argv[0]
);
return -1;
}
if (argc == 3)
{
conf->device_name = "relabsd device";
}
else
{
conf->device_name = argv[3];
}
conf->input_file = argv[1];
if (read_config_file(conf, argv[2]) < 0)
{
return -1;
}
return 0;
}
int relabsd_config_allows
(
const struct relabsd_config * const conf,
enum relabsd_axis const axis,
int const value
)
{
return 1;
};
void relabsd_config_get_absinfo
(
const struct relabsd_config * const conf,
enum relabsd_axis const axis,
struct input_absinfo * const absinfo
)
{
absinfo->value = (__s32) 0;
absinfo->minimum = (__s32) conf->axis[axis].min;
absinfo->maximum = (__s32) conf->axis[axis].max;
absinfo->fuzz = (__s32) conf->axis[axis].fuzz;
absinfo->flat = (__s32) conf->axis[axis].flat;
absinfo->resolution = (__s32) conf->axis[axis].resolution;
}
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