summaryrefslogtreecommitdiff
path: root/v4l2-apps/util/xc3028-firmware/standards.c
diff options
context:
space:
mode:
Diffstat (limited to 'v4l2-apps/util/xc3028-firmware/standards.c')
-rw-r--r--v4l2-apps/util/xc3028-firmware/standards.c152
1 files changed, 152 insertions, 0 deletions
diff --git a/v4l2-apps/util/xc3028-firmware/standards.c b/v4l2-apps/util/xc3028-firmware/standards.c
new file mode 100644
index 000000000..38b2e625d
--- /dev/null
+++ b/v4l2-apps/util/xc3028-firmware/standards.c
@@ -0,0 +1,152 @@
+/*
+ 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"
+
+#define _GNU_SOURCE
+#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;
+};
+
+struct vector* alloc_vector(unsigned int size) {
+ struct vector *v = malloc(sizeof(*v));
+ v->data = malloc(size);
+ v->size = size;
+ return v;
+}
+
+void free_vector(struct vector* v) {
+ free(v->data);
+ free(v);
+}
+
+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;
+}
+
+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);
+}
+
+void write_vector8(struct vector *v, unsigned int i, __u8 value) {
+ __u8 buf[1];
+
+ buf[0] = value;
+ copy_vector(v, i, buf, 1);
+}
+
+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 const char reset_tuner_str[] = "RESET_TUNER";
+static const 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;
+}
+