mirror of https://github.com/nirenjan/libx52.git
Add libx52 API files
Initial frmework of libx52. This library allows the user to write to the X52 joystick MFD and LEDs.pull/3/head
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test_x52: x52control.c x52control.h
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gcc -I /usr/include/libusb-1.0/ x52control.c -lusb-1.0 -o $@
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.PHONY: clean
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clean:
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rm -f test_x52 *.o
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/*
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* Saitek X52 Pro MFD & LED driver
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*
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* Copyright (C) 2012 Nirenjan Krishnan (nirenjan@nirenjan.org)
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation, version 2.
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*
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*/
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#ifndef LIBX52_H
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#define LIBX52_H
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struct libx52_device;
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typedef struct libx52_device libx52_device;
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#endif /* !defined LIBX52_H */
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/*
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* Saitek X52 Pro MFD & LED driver
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*
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* Copyright (C) 2012 Nirenjan Krishnan (nirenjan@nirenjan.org)
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation, version 2.
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*
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*/
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#ifndef X52JOY_COMMON_H
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#define X52JOY_COMMON_H
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#include <stdint.h>
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#include <stdlib.h>
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#include <libusb.h>
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/*
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* The X52 MFD supports the following:
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* - 3 lines of 16 characters each
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* - Clock with HH:MM
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* - Date with YYMMDD (IIRC)
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*/
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#define X52_MFD_LINE_SIZE 16
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#define X52_MFD_LINES 3
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struct x52_mfd_line {
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uint8_t text[X52_MFD_LINE_SIZE];
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uint8_t length;
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};
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enum x52_mfd_date_format {
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x52_mfd_format_yymmdd, /* YY-MM-DD */
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x52_mfd_format_mmddyy, /* MM-DD-YY */
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x52_mfd_format_ddmmyy, /* DD-MM-YY */
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x52_mfd_format_max,
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};
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struct x52_mfd_date {
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uint8_t year;
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uint8_t month;
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uint8_t day;
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uint8_t format; /* See format enum */
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};
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struct x52_mfd_time {
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uint8_t hour;
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uint8_t minute;
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uint8_t h24; /* 24 hour format if 1 */
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};
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struct x52_mfd_offs {
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uint16_t min_off; /* Minute offset from clock 0 */
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uint8_t neg_off; /* Negative offset if 1 */
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uint8_t h24; /* 24 hour format if 1 */
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};
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struct libx52_device {
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libusb_device_handle *hdl;
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struct libusb_transfer *in_xfer;
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struct libusb_transfer *ctrl_xfer;
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uint32_t update_mask;
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uint8_t input_buffer[16];
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uint32_t led_mask;
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struct x52_mfd_line line[X52_MFD_LINES];
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struct x52_mfd_date date;
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struct x52_mfd_time time;
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struct x52_mfd_offs offs[2];
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};
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#define X52_BIT_SHIFT 0
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#define X52_BIT_LED_FIRE 1
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#define X52_BIT_LED_A_RED 2
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#define X52_BIT_LED_A_GREEN 3
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#define X52_BIT_LED_B_RED 4
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#define X52_BIT_LED_B_GREEN 5
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#define X52_BIT_LED_D_RED 6
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#define X52_BIT_LED_D_GREEN 7
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#define X52_BIT_LED_E_RED 8
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#define X52_BIT_LED_E_GREEN 9
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#define X52_BIT_LED_T1_RED 10
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#define X52_BIT_LED_T1_GREEN 11
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#define X52_BIT_LED_T2_RED 12
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#define X52_BIT_LED_T2_GREEN 13
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#define X52_BIT_LED_T3_RED 14
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#define X52_BIT_LED_T3_GREEN 15
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#define X52_BIT_LED_POV_RED 16
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#define X52_BIT_LED_POV_GREEN 17
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#define X52_BIT_LED_I_RED 18
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#define X52_BIT_LED_I_GREEN 19
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#define X52_BIT_LED_THROTTLE 20
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#define X52_BIT_MFD_LINE1 21
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#define X52_BIT_MFD_LINE2 22
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#define X52_BIT_MFD_LINE3 23
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#define X52_BIT_POV_BLINK 24
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#define X52_BIT_BRI_MFD 25
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#define X52_BIT_BRI_LED 26
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#define X52_BIT_MFD_DATE 27
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#define X52_BIT_MFD_TIME 28
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#define X52_BIT_MFD_OFFS1 29
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#define X52_BIT_MFD_OFFS2 30
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#endif /* !defined X52JOY_COMMON_H */
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@ -0,0 +1,200 @@
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/*
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* Saitek X52 Pro MFD & LED driver
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*
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* Copyright (C) 2012 Nirenjan Krishnan (nirenjan@nirenjan.org)
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation, version 2.
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*
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*/
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#include <stdio.h>
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#include <stdint.h>
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#include <stdlib.h>
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#include <errno.h>
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#include <string.h>
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#include <libusb.h>
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#include "libx52.h"
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#include "x52control.h"
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#include "x52_common.h"
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static libusb_context *libx52_ctx;
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#define VENDOR_SAITEK 0x06a3
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#define X52_PROD_X52PRO 0x0762
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static int libx52_check_product(uint16_t idVendor, uint16_t idProduct)
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{
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if (idVendor == VENDOR_SAITEK) {
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switch (idProduct) {
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case X52_PROD_X52PRO:
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return 1;
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}
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}
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return 0;
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}
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inline void set_bit(uint32_t *value, int bit)
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{
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*value |= (1UL << bit);
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}
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inline void clr_bit(uint32_t *value, uint32_t bit)
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{
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*value &= ~(1UL << bit);
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}
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inline uint32_t tst_bit(uint32_t *value, uint32_t bit)
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{
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return (*value & (1UL << bit));
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}
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int libx52_set_text(libx52_device *x52, uint8_t line, const char *text, uint8_t length)
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{
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if (!x52 || !text) {
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return -EINVAL;
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}
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if (line > 2) {
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return -EINVAL;
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}
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if (length > X52_MFD_LINE_SIZE) {
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length = X52_MFD_LINE_SIZE;
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}
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memcpy(x52->line[line].text, text, length);
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set_bit(&x52->update_mask, X52_BIT_MFD_LINE1 + line);
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return 0;
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}
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int libx52_set_led(libx52_device *x52, uint8_t led, uint8_t state)
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{
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if (!x52) {
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return -EINVAL;
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}
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if (led > X52_BIT_LED_THROTTLE || led < X52_BIT_LED_FIRE) {
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return -EINVAL;
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}
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if (state) {
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set_bit(&x52->led_mask, led);
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} else {
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clr_bit(&x52->led_mask, led);
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}
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set_bit(&x52->update_mask, led);
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return 0;
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}
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int libx52_set_date(libx52_device *x52, uint8_t date, uint8_t month, uint8_t year, uint8_t format)
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{
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if (!x52 || format >= x52_mfd_format_max) {
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return -EINVAL;
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}
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x52->date.day = date;
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x52->date.month = month;
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x52->date.year = year;
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x52->date.format = format;
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set_bit(&x52->update_mask, X52_BIT_MFD_DATE);
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}
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int libx52_set_time(libx52_device *x52, uint8_t hour, uint8_t minute, uint8_t format)
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{
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if (!x52 || format >= x52_mfd_format_max) {
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return -EINVAL;
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}
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x52->time.hour = hour;
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x52->time.minute = minute;
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x52->time.h24 = format;
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set_bit(&x52->update_mask, X52_BIT_MFD_TIME);
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}
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libx52_device* libx52_init(void)
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{
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int rc;
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ssize_t count;
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int i;
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libusb_device **list;
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libusb_device *device;
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libusb_device_handle *hdl;
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struct libusb_device_descriptor desc;
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char pname[64];
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libx52_device *x52_dev;
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rc = libusb_init(&libx52_ctx);
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if (rc) {
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fprintf(stderr, "Unable to initialize libusb; rc=%d\n", rc);
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return NULL;
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}
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libusb_set_debug(libx52_ctx, 3);
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count = libusb_get_device_list(libx52_ctx, &list);
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for (i = 0; i < count; i++) {
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device = list[i];
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printf("Device %d:\n", i);
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printf("\tBus: %d\n", libusb_get_bus_number(device));
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printf("\tAddress: %d\n", libusb_get_device_address(device));
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printf("\tSpeed: %d\n", libusb_get_device_speed(device));
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if (!libusb_get_device_descriptor(device, &desc)) {
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printf("\tVID/PID: %04x %04x\n", desc.idVendor, desc.idProduct);
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if (libx52_check_product(desc.idVendor, desc.idProduct)) {
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x52_dev = malloc(sizeof(libx52_device));
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if (!x52_dev) {
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fprintf(stderr, "Cannot allocate libx52_device\n");
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return NULL;
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}
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rc = libusb_open(device, &hdl);
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if (rc) {
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free(x52_dev);
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}
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x52_dev->hdl = hdl;
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if(libusb_get_string_descriptor_ascii(hdl, desc.iManufacturer, pname, 64) > 0 || 1) {
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printf("\tManufacturer: %s\n", pname);
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}
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if(libusb_get_string_descriptor_ascii(hdl, desc.iProduct, pname, 64) > 0 || 1) {
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printf("\tProduct: %s\n", pname);
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}
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}
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}
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printf("\n");
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}
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libusb_free_device_list(list, 1);
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return x52_dev;
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}
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void libx52_exit(libx52_device *dev)
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{
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libusb_close(dev->hdl);
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free(dev);
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libusb_exit(libx52_ctx);
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}
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int main()
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{
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int rc;
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ssize_t count;
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int i;
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libx52_device *dev;
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dev = libx52_init();
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libx52_exit(dev);
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return 0;
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}
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@ -0,0 +1,75 @@
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/*
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* Saitek X52 Pro MFD & LED driver
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*
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* Copyright (C) 2012 Nirenjan Krishnan (nirenjan@nirenjan.org)
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation, version 2.
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*
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*/
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#ifndef X52JOY_COMMANDS_H
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#define X52JOY_COMMANDS_H
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/* X52 vendor API commands */
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/* Vendor request - all commands must have this request ID */
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#define X52_VENDOR_REQUEST 0x91
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/* MFD Text commands */
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#define X52_MFD_CLEAR_LINE 0x08
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#define X52_MFD_WRITE_LINE 0x00
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#define X52_MFD_LINE1 0xd1
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#define X52_MFD_LINE2 0xd2
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#define X52_MFD_LINE3 0xd4
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/* Brightness commands */
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#define X52_MFD_BRIGHTNESS 0xb1
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#define X52_LED_BRIGHTNESS 0xb2
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/* LED set commands */
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#define X52_LED 0xb8
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/* Time commands */
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#define X52_TIME_CLOCK1 0xc0
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#define X52_OFFS_CLOCK2 0xc1
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#define X52_OFFS_CLOCK3 0xc2
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/* Date commands */
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#define X52_DATE_DDMM 0xc4
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#define X52_DATE_YEAR 0xc8
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/* Shift indicator on MFD */
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#define X52_SHIFT_INDICATOR 0xfd
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#define X52_SHIFT_ON 0x51
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#define X52_SHIFT_OFF 0x50
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/* Blink throttle & POV LED */
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#define X52_BLINK_INDICATOR 0xb4
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#define X52_BLINK_ON 0x51
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#define X52_BLINK_OFF 0x50
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/* LED indices */
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#define X52_LED_FIRE 0x01
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#define X52_LED_A_RED 0x02
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#define X52_LED_A_GREEN 0x03
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#define X52_LED_B_RED 0x04
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#define X52_LED_B_GREEN 0x05
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#define X52_LED_D_RED 0x06
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#define X52_LED_D_GREEN 0x07
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#define X52_LED_E_RED 0x08
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#define X52_LED_E_GREEN 0x09
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#define X52_LED_T1_RED 0x0a
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#define X52_LED_T1_GREEN 0x0b
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#define X52_LED_T2_RED 0x0c
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#define X52_LED_T2_GREEN 0x0d
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#define X52_LED_T3_RED 0x0e
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#define X52_LED_T3_GREEN 0x0f
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#define X52_LED_POV_RED 0x10
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#define X52_LED_POV_GREEN 0x11
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#define X52_LED_I_RED 0x12
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#define X52_LED_I_GREEN 0x13
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#define X52_LED_THROTTLE 0x14
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#endif /* !defined X52JOY_COMMANDS_H */
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