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/*
Xceive XC2028/3028 tuner module firmware manipulation tool
Copyright (C) 2007 Michel Ludwig <michel.ludwig@gmail.com>
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
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "standards.h"
#include <malloc.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <asm/byteorder.h>
#include <asm/types.h>
#define MAX(a,b) ((a) >= (b) ? (a) : (b))
struct vector {
unsigned char* data;
unsigned int size;
};
static struct vector* alloc_vector(unsigned int size) {
struct vector *v = malloc(sizeof(*v));
v->data = malloc(size);
v->size = size;
return v;
}
static void free_vector(struct vector* v) {
free(v->data);
free(v);
}
static void enlarge_vector(struct vector* v, unsigned int new_size) {
unsigned char *n_data;
unsigned int old_size = v->size;
v->size = MAX(v->size, new_size);
n_data = malloc(v->size);
memcpy(n_data, v->data, old_size);
free(v->data);
v->data = n_data;
}
static void copy_vector(struct vector *v, unsigned int i,
unsigned char* ptr, unsigned int len) {
if(i + len > v->size) {
enlarge_vector(v, MAX(2 * v->size, i + len));
}
memcpy(v->data + i, ptr, len);
}
static void write_vector8(struct vector *v, unsigned int i, __u8 value) {
__u8 buf[1];
buf[0] = value;
copy_vector(v, i, buf, 1);
}
static void write_vector16(struct vector *v, unsigned int i, __u16 value) {
__u8 buf[2];
buf[0] = value & 0xff;
buf[1] = value >> 8;
copy_vector(v, i, buf, 2);
}
static const char reset_tuner_str[] = "RESET_TUNER";
static const char reset_clk_str[] = "RESET_CLK";
void create_standard_data(char* filename, unsigned char** data, unsigned int *r_len) {
FILE *file;
char* line = NULL;
ssize_t r = 0;
size_t len = 0;
struct vector *v = alloc_vector(1);
unsigned int v_i = 0;
if (!(file = fopen(filename, "r"))) {
perror("Cannot open the firmware standard file.\n");
*data = NULL;
}
while ((r = getline(&line, &len, file)) != -1) {
unsigned int i = 0;
unsigned int val, count = 0;
unsigned int values[len];
printf("read line \"%s\"\n", line);
if(len >= 9 && memcmp(reset_clk_str, line, strlen(reset_clk_str) - 1) == 0) {
printf("adding RESET_CLK\n");
write_vector16(v, v_i, (__u16) 0xff00);
v_i += 2;
continue;
}
else if(len >= 11 && memcmp(reset_tuner_str, line, strlen(reset_tuner_str) - 1) == 0) {
printf("adding RESET_TUNER\n");
write_vector16(v, v_i, (__u16) 0x0000);
v_i += 2;
continue;
}
while(i < len && sscanf(line + i*sizeof(char), "%2x", &val) == 1) {
printf("%2x ", val);
values[count] = val;
++count;
i += 2;
while(line[i] == ' ') {
++i;
}
}
write_vector16(v, v_i, __cpu_to_le16((__u16) count));
v_i += 2;
for(i = 0; i < count; ++i) {
write_vector8(v, v_i, (__u8) values[i]);
++v_i;
}
printf("\n");
}
write_vector16(v, v_i, 0xffff);
v_i += 2;
free(line);
fclose(file);
*data = malloc(v_i);
memcpy(*data, v->data, v_i);
free_vector(v);
*r_len = v_i;
}
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