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libx52/cli/x52_cli.c

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/*
* Saitek X52 Pro MFD & LED driver
*
* Copyright (C) 2015 Nirenjan Krishnan (nirenjan@nirenjan.org)
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation, version 2.
*/
#include <stdio.h>
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <time.h>
#include "libx52.h"
typedef enum {
X52_CTL_CMD_BRIGHTNESS,
X52_CTL_CMD_MFD_TEXT,
X52_CTL_CMD_LED_STATE,
X52_CTL_CMD_BLINK,
X52_CTL_CMD_SHIFT,
X52_CTL_CMD_CLOCK,
X52_CTL_CMD_OFFSET,
X52_CTL_CMD_RAW,
X52_CTL_CMD_MAX
} x52_ctl_command;
struct string_map {
char *key;
union {
libx52_clock_id clock_id;
libx52_clock_format clock_format;
libx52_date_format date_format;
libx52_led_id led_id;
libx52_led_state led_state;
int int_val;
intptr_t ptr_val;
} value;
};
// Max 4 arguments for now
#define MAX_ARGS 4
typedef int (*handler_cb)(libx52_device *x52, void *args[]);
struct command_handler {
handler_cb handler;
int num_args;
const struct string_map *maps[MAX_ARGS];
const char *help;
};
#define SAVE_ARGUMENT(type, name, arg) type name = (type)(uintptr_t)(arg)
#define PARSE_ARGUMENT(type, arg) ((type)(uintptr_t)(arg))
#define MAP(name) name##_map
#define DEFINE_MAP(name) static const struct string_map MAP(name)[]
#define MAP_CLOCK_ID(id) {.key = #id, .value.clock_id = LIBX52_CLOCK_ ## id}
#define MAP_CLOCK_FORMAT(fmt) {.key = #fmt, .value.clock_format = LIBX52_CLOCK_FORMAT_ ## fmt}
#define MAP_DATE_FORMAT(fmt) {.key = #fmt, .value.date_format = LIBX52_DATE_FORMAT_ ## fmt}
#define MAP_LED_ID(id) {.key = #id, .value.led_id = LIBX52_LED_ ## id}
#define MAP_LED_STATE(state) {.key = #state, .value.led_state = LIBX52_LED_STATE_ ## state}
#define MAP_INT(str, val) {.key = str, .value.int_val = val}
#define MAP_TERMINATOR MAP_INT(NULL, -1)
/**
* Parse a string and match it with a corresponding value
* Maps are arrays which contain a terminating entry with a NULL key.
*
* Return 0 if no match
*/
static int map_lookup(const struct string_map *map, const char *str, struct string_map *result)
{
const struct string_map *map_index = map;
/* Search through the map for a matching key */
while (map_index->key) {
if (!strcasecmp(str, map_index->key)) {
result->value = map_index->value;
return 1;
}
map_index++;
}
return 0;
}
/* Map for LED state */
DEFINE_MAP(led_state) = {
MAP_LED_STATE(OFF),
MAP_LED_STATE(ON),
MAP_LED_STATE(RED),
MAP_LED_STATE(AMBER),
MAP_LED_STATE(GREEN),
MAP_TERMINATOR
};
/* Map for LED identifier */
DEFINE_MAP(led_id) = {
MAP_LED_ID(FIRE),
MAP_LED_ID(A),
MAP_LED_ID(B),
MAP_LED_ID(D),
MAP_LED_ID(E),
MAP_LED_ID(T1),
MAP_LED_ID(T2),
MAP_LED_ID(T3),
MAP_LED_ID(POV),
MAP_LED_ID(CLUTCH),
MAP_LED_ID(THROTTLE),
MAP_TERMINATOR
};
/* Map for date format */
DEFINE_MAP(date_format) = {
MAP_DATE_FORMAT(DDMMYY),
MAP_DATE_FORMAT(MMDDYY),
MAP_DATE_FORMAT(YYMMDD),
MAP_TERMINATOR
};
/* Map for brightness setting */
DEFINE_MAP(brightness_targets) = {
MAP_INT( "mfd", 1 ),
MAP_INT( "led", 0 ),
MAP_TERMINATOR
};
/* Map for blink/shift on/off */
DEFINE_MAP(on_off) = {
MAP_INT( "off", 0 ),
MAP_INT( "on", 1 ),
MAP_TERMINATOR
};
/* Map for clock 0 timezone */
DEFINE_MAP(clock0_timezone) = {
MAP_INT( "gmt", 0 ),
MAP_INT( "local", 1 ),
MAP_TERMINATOR
};
/* Map for identifying the clock for the timezone */
DEFINE_MAP(clocks) = {
MAP_CLOCK_ID(1),
MAP_CLOCK_ID(2),
MAP_CLOCK_ID(3),
MAP_TERMINATOR
};
/* Map for identifying the time format */
DEFINE_MAP(time_format) = {
MAP_CLOCK_FORMAT(12HR),
MAP_CLOCK_FORMAT(24HR),
MAP_TERMINATOR
};
/* Map for commands */
DEFINE_MAP(command) = {
MAP_INT( "led", X52_CTL_CMD_LED_STATE ),
MAP_INT( "bri", X52_CTL_CMD_BRIGHTNESS ),
MAP_INT( "mfd", X52_CTL_CMD_MFD_TEXT ),
MAP_INT( "blink", X52_CTL_CMD_BLINK ),
MAP_INT( "shift", X52_CTL_CMD_SHIFT ),
MAP_INT( "clock", X52_CTL_CMD_CLOCK ),
MAP_INT( "offset", X52_CTL_CMD_OFFSET ),
MAP_INT( "raw", X52_CTL_CMD_RAW ),
MAP_TERMINATOR
};
static int update_led(libx52_device *x52, void *args[])
{
return libx52_set_led_state(x52,
PARSE_ARGUMENT(libx52_led_id, args[0]),
PARSE_ARGUMENT(libx52_led_state, args[1]));
}
static int update_bri(libx52_device *x52, void *args[])
{
unsigned long int brightness = strtoul(args[1], NULL, 0);
return libx52_set_brightness(x52,
PARSE_ARGUMENT(uint8_t, args[0]), (uint16_t)brightness);
}
static int update_mfd(libx52_device *x52, void *args[])
{
uint8_t line = (uint8_t)strtoul(args[0], NULL, 0);
uint8_t length = strlen(args[1]);
return libx52_set_text(x52, line, args[1], length);
}
static int update_blink(libx52_device *x52, void *args[])
{
return libx52_set_blink(x52, PARSE_ARGUMENT(int, args[0]));
}
static int update_shift(libx52_device *x52, void *args[])
{
return libx52_set_shift(x52, PARSE_ARGUMENT(int, args[0]));
}
static int update_clock(libx52_device *x52, void *args[])
{
int rc;
rc = libx52_set_clock(x52, time(NULL),
PARSE_ARGUMENT(int, args[0]));
if (!rc) {
rc = libx52_set_clock_format(x52, LIBX52_CLOCK_1,
PARSE_ARGUMENT(libx52_clock_format, args[1]));
}
if (!rc) {
rc = libx52_set_date_format(x52,
PARSE_ARGUMENT(libx52_date_format, args[2]));
}
return rc;
}
static int update_offset(libx52_device *x52, void *args[])
{
int offset = (int)strtol(args[1], NULL, 0);
int rc;
SAVE_ARGUMENT(libx52_clock_id, clock, args[0]);
rc = libx52_set_clock_timezone(x52, clock, offset);
if (!rc) {
rc = libx52_set_clock_format(x52, clock,
PARSE_ARGUMENT(libx52_clock_format, args[2]));
}
return rc;
}
static int write_raw(libx52_device *x52, void *args[])
{
uint16_t wIndex = (uint16_t)strtoul(args[0], NULL, 0);
uint16_t wValue = (uint16_t)strtoul(args[1], NULL, 0);
return libx52_vendor_command(x52, wIndex, wValue);
}
const struct command_handler handlers[X52_CTL_CMD_MAX] = {
[X52_CTL_CMD_LED_STATE] = {
update_led,
2,
{
MAP(led_id),
MAP(led_state),
},
"led <led-id> <state>"
},
[X52_CTL_CMD_BRIGHTNESS] = {
update_bri,
2,
{
MAP(brightness_targets),
NULL,
},
"bri {mfd | led} <brightness level>"
},
[X52_CTL_CMD_MFD_TEXT] = {
update_mfd,
2,
{
NULL,
NULL,
},
"mfd <line> <text in quotes>"
},
[X52_CTL_CMD_BLINK] = {
update_blink,
1,
{ MAP(on_off) },
"blink { on | off }"
},
[X52_CTL_CMD_SHIFT] = {
update_shift,
1,
{ MAP(on_off) },
"shift { on | off }"
},
[X52_CTL_CMD_CLOCK] = {
update_clock,
3,
{
MAP(clock0_timezone),
MAP(time_format),
MAP(date_format),
},
"clock {local | gmt} {12hr | 24hr} {ddmmyy | mmddyy | yymmdd}"
},
[X52_CTL_CMD_OFFSET] = {
update_offset,
3,
{
MAP(clocks),
NULL,
MAP(time_format)
},
"offset {2 | 3} <offset from clock 1 in minutes> {12hr | 24hr}"
},
[X52_CTL_CMD_RAW] = {
write_raw,
2,
{
NULL,
NULL,
},
"raw <wIndex> <wValue>"
}
};
static void do_help(const struct command_handler *cmd)
{
int i;
if (cmd) {
fprintf(stderr, "Command usage: %s\n", cmd->help);
} else {
printf("\nCommands:\n");
for (i = 0; i < X52_CTL_CMD_MAX; i++) {
printf("\t%s\n", handlers[i].help);
}
printf("\nWARNING: raw command may damage your device\n\n");
}
return 0;
}
int main(int argc, char **argv)
{
libx52_device *x52;
struct string_map result;
const struct command_handler *cmd;
int i;
void *args[MAX_ARGS];
int rc;
if (argc < 2) {
fprintf(stderr, "Usage: %s <command> [arguments]\n", argv[0]);
do_help(NULL);
return 1;
}
if (!map_lookup(command_map, argv[1], &result)) {
fprintf(stderr, "Unsupported command %s\n", argv[1]);
do_help(NULL);
return 1;
}
cmd = &handlers[result.value.int_val];
if (!cmd->handler) {
fprintf(stderr, "Command %s not implemented yet!\n", argv[1]);
return 1;
}
if (cmd->num_args > argc - 2) {
fprintf(stderr, "Insufficient arguments for command %s\n", argv[1]);
do_help(cmd);
return 1;
}
/* Clear the arguments array */
memset(args, 0, sizeof(args));
for (i = 0; i < cmd->num_args; i++) {
if (cmd->maps[i]) {
if (!map_lookup(cmd->maps[i], argv[2+i], &result)) {
fprintf(stderr, "Invalid argument %s", argv[2+i]);
return 1;
}
args[i] = (void *)result.value.ptr_val;
} else {
args[i] = argv[2+i];
}
}
/* Lookup the X52 device */
x52 = libx52_init();
if (!x52) {
fprintf(stderr, "Unable to find X52 joystick!\n");
return 1;
}
rc = (*(cmd->handler))(x52, args);
if (rc != 0) {
fprintf(stderr, "Error: %s\n", strerror(-rc));
}
libx52_update(x52);
libx52_exit(x52);
return rc;
}
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