_N0x/f8prog
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Added basic implementation of writing a macro program to the firmware

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This commit is contained in:
_N0x 2022-02-11 00:19:20 +01:00
parent 10ffdc7aaa
commit d1b9796c5a
7 changed files with 184 additions and 65 deletions
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2
Makefile
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@ -1,6 +1,6 @@
## Compiler settings
CC = cc
CFLAGS = -Wall
CFLAGS = -Wall -Werror -g -std=c99
LDFLAGS =
## Project settings

BIN
firmware.bin
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Binary file not shown.

32
include/change_key.h
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@ -1,32 +0,0 @@
/* changeKey.h */
/* Define for key offsets */
#define F8_KEY1 0x00005149
#define F8_KEY2 0x00005179
#define F8_KEY3 0x00005181
#define F8_KEY4 0x00005189
#define F8_KEY5 0x00005190
#define F8_KEY6 0x00005182
#define F8_KEY7 0x0000517a
#define F8_KEY8 0x0000514a
/* Define for prog1-8 offset */
#define PROG1_OFFSET 0x0000539C
#define PROG2_OFFSET 0x000056BC
#define PROG3_OFFSET 0x000059DC
#define PROG4_OFFSET 0x00005CFC
#define PROG5_OFFSET 0x0000601C
#define PROG6_OFFSET 0x0000633C
#define PROG7_OFFSET 0x0000665C
#define PROG8_OFFSET 0x0006977C
typedef struct key_prog key_prog;
struct key_prog
{
int offset;
int key_settings[100][8];
};
void set_key_value(char* firmware_buffer, int key, int value);

86
include/firmware_handling.h
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@ -1,11 +1,85 @@
typedef struct fbuffer_t fbuffer_t;
struct fbuffer_t
#include <stdint.h>
/* Max prog_actions per key_prog */
#define MAX_ACTION 100
/* Defines for key offsets */
#define F8_KEY1 0x00005189
#define F8_KEY2 0x00005181
#define F8_KEY3 0x00005179
#define F8_KEY4 0x00005149
#define F8_KEY5 0x0000518A
#define F8_KEY6 0x00005182
#define F8_KEY7 0x0000517A
#define F8_KEY8 0x0000514A
/* Defines for key program code */
#define F8_PROG1 0xD7
#define F8_PROG2 0xD8
#define F8_PROG3 0xD9
#define F8_PROG4 0xDA
#define F8_PROG5 0xDB
#define F8_PROG6 0xDC
#define F8_PROG7 0xDD
#define F8_PROG8 0xDE
/* Define for prog1-8 offset */
#define PROG1_OFFSET 0x0000539C
#define PROG2_OFFSET 0x000056BC
#define PROG3_OFFSET 0x000059DC
#define PROG4_OFFSET 0x00005CFC
#define PROG5_OFFSET 0x0000601C
#define PROG6_OFFSET 0x0000633C
#define PROG7_OFFSET 0x0000665C
#define PROG8_OFFSET 0x0000697C
typedef struct f_bffr_t* f_bffrP;
struct f_bffr_t
{
char* buffer;
char *buffer;
int size;
};
/* reads in the firmware file into a buffer */
fbuffer_t* get_firmware_buffer(char* filename);
void write_firmware_buffer(char* filename, fbuffer_t* p_fb);
/*
* A single macro action
* First value is the modifiers to be hold while executing the other actions (see keycodes.h)
* Second value is the delay between the keypresse ranging from 0.0 seconds to 3.0 seconds
* The remaining values are the keycodes to be pressed
*/
typedef struct prog_action* prog_actionP;
struct prog_action
{
uint8_t k_modifier;
uint8_t k_delay;
uint8_t k_action1;
uint8_t k_action2;
uint8_t k_action3;
uint8_t k_action4;
uint8_t k_action5;
uint8_t k_action6;
};
/*
* A single macro program consisting of the offset and up to MAX_ACTION (100) actions
*/
typedef struct key_prog* key_progP;
struct key_prog
{
int prog_offset;
prog_actionP prog_actions[MAX_ACTION];
};
/*
* set the value "value" to the specified key "key" inside the buffer "firmware_buffer"
* Key has to be the offset of the key to be altered.
* Value has to be a keycode
*/
void set_key_value(char *firmware_buffer, int key, int value);
void set_program(f_bffrP p_fb, key_progP kp);
/* reads in the firmware file into a buffer */
f_bffrP get_firmware_buffer(char *filename);
void write_firmware_buffer(char *filename, f_bffrP p_fb);

10
src/change_key.c
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@ -1,10 +0,0 @@
#include <stdio.h>
#include <sys/stat.h>
#include <string.h>
#include <ctype.h>
#include "../include/change_key.h"
void set_key_value(char* firmware_buffer, int key, int value) {
memset(firmware_buffer + key, value, 1);
}

42
src/firmware_handling.c
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@ -1,15 +1,16 @@
#include <stdio.h>
#include <stdlib.h>
#include <sys/stat.h>
#include <string.h>
#include <sys/stat.h>
/* Just for debugging */
#include <ctype.h>
#include "../include/firmware_handling.h"
fbuffer_t* get_firmware_buffer(char* filename) {
f_bffrP get_firmware_buffer(char *filename) {
fbuffer_t buffer;
fbuffer_t* p_fb = &buffer;
f_bffrP p_fb = malloc(sizeof(*p_fb));
FILE *firmware = fopen(filename, "rb");
if(!firmware) {
@ -23,6 +24,7 @@ fbuffer_t* get_firmware_buffer(char* filename) {
exit(EXIT_FAILURE);
}
/* set buffer size and read in firmware file into buffer*/
p_fb->size = sb.st_size;
p_fb->buffer = malloc(p_fb->size);
fread(p_fb->buffer, p_fb->size, 1, firmware);
@ -35,7 +37,7 @@ fbuffer_t* get_firmware_buffer(char* filename) {
return p_fb;
}
void write_firmware_buffer(char* filename, fbuffer_t* p_fb) {
void write_firmware_buffer(char *filename, f_bffrP p_fb) {
FILE *firmware_file = fopen(filename, "wb+");
if(!firmware_file) {
@ -47,3 +49,33 @@ void write_firmware_buffer(char* filename, fbuffer_t* p_fb) {
fclose(firmware_file);
}
void set_key_value(char *firmware_buffer, int key, int value) {
memset(firmware_buffer + key, value, 1);
}
void set_program(f_bffrP p_fb, key_progP kp) {
for(int i=0; i<MAX_ACTION; i++){
// Check if an action for that position exists
if(kp->prog_actions[i]){
/* calculate the offset for the action
* -> general prog_offset + current prog_action i times bytes per action
*/
int actionpointer = kp->prog_offset + (i * sizeof(*kp->prog_actions[0]));
/* set the modifiers */
memset(p_fb->buffer + actionpointer + 0, kp->prog_actions[i]->k_modifier, 1);
/* set timing delay */
memset(p_fb->buffer + actionpointer + 1, kp->prog_actions[i]->k_delay, 1);
/* set action 1-6 */
memset(p_fb->buffer + actionpointer + 2, kp->prog_actions[i]->k_action1, 1);
memset(p_fb->buffer + actionpointer + 3, kp->prog_actions[i]->k_action2, 1);
memset(p_fb->buffer + actionpointer + 4, kp->prog_actions[i]->k_action3, 1);
memset(p_fb->buffer + actionpointer + 5, kp->prog_actions[i]->k_action4, 1);
memset(p_fb->buffer + actionpointer + 6, kp->prog_actions[i]->k_action5, 1);
memset(p_fb->buffer + actionpointer + 7, kp->prog_actions[i]->k_action6, 1);
}
}
}

75
src/main.c
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@ -1,28 +1,83 @@
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include "../include/change_key.h"
#include "../include/firmware_handling.h"
#include "../include/keycodes.h"
void testing (f_bffrP p_fb);
char *updated_file_name(char *orig);
int main (int argc, char *argv[])
{
fbuffer_t* p_fb = get_firmware_buffer(argv[1]);
/* Read in the firmware file into a f_bffr_t struct */
f_bffrP p_fb = get_firmware_buffer(argv[1]);
set_key_value(p_fb->buffer, F8_KEY8, KEY_a_A);
/* Call testing method */
testing(p_fb);
write_firmware_buffer(updated_file_name(argv[1]), p_fb);
free(p_fb->buffer);
free(p_fb);
return 0;
}
char *updated_file_name (char *orig){
char *ne = "_new.bin";
int len = strlen(orig);
char *new_name = malloc(len + 4);
strncpy(new_name, orig, len - 4);
strcat(new_name, ne);
printf("New File Name: %s", new_name);
return new_name;
}
void testing (f_bffrP p_fb) {
set_key_value(p_fb->buffer, F8_KEY1, KEY_9_LeftParenthesis);
set_key_value(p_fb->buffer, F8_KEY2, KEY_8_Asterisk);
set_key_value(p_fb->buffer, F8_KEY3, KEY_7_Ampersand);
set_key_value(p_fb->buffer, F8_KEY4, KEY_6_Caret);
set_key_value(p_fb->buffer, F8_KEY5, KEY_5_Percent);
set_key_value(p_fb->buffer, F8_KEY6, KEY_4_Dollar);
set_key_value(p_fb->buffer, F8_KEY7, KEY_3_Pound);
set_key_value(p_fb->buffer, F8_KEY8, KEY_2_At);
/* for debugging -> print content of buffer to terminal */
/*
for(int i = 0; i<fb->size; i++){
putc(isprint(fb->buffer[i]) ? fb->buffer[i] : '.', stdout);
for(int i = 0; i<p_fb->size; i++){
putc(isprint(p_fb->buffer[i]) ? p_fb->buffer[i] : '.', stdout);
}
*/
/* Temporary solution to renaming the input file */
char str[50];
sprintf(str, "new_%s", argv[1]);
prog_actionP pa = calloc(1, sizeof(*pa));
pa->k_modifier = 0x00;
pa->k_delay = 0x00;
pa->k_action1 = 0x0B;
pa->k_action2 = 0x04;
pa->k_action3 = 0x0F;
pa->k_action4 = 0x0F;
pa->k_action5 = 0x12;
pa->k_action6 = 0x00;
write_firmware_buffer(str, p_fb);
return 0;
key_progP kp = calloc(1, sizeof(*kp));
kp->prog_offset = PROG1_OFFSET;
kp->prog_actions[0] = pa;
kp->prog_actions[1] = pa;
kp->prog_actions[2] = pa;
kp->prog_actions[3] = pa;
kp->prog_actions[99] = pa;
//*/
set_program(p_fb, kp);
free(kp);
free(pa);
}