ErnyTech/Open-USB-Extreme
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toD: oue_version

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This commit is contained in:
Ernesto Castellotti 2019-08-20 16:19:22 +02:00
parent 2fde7880a1
commit cf6a1172ae
2 changed files with 49 additions and 27 deletions
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49
lib/dusbextreme.d
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@ -13,6 +13,28 @@ struct usb_extreme_base {
uint8_t[10] empty2;
}
struct usb_extreme_v0 {
char[USBEXTREME_NAME_LENGTH] name;
char[USBEXTREME_ID_LENGTH] id;
uint8_t n_parts;
uint8_t type;
uint8_t[4] empty;
uint8_t magic;
uint8_t[USBEXTREME_NAME_EXT_LENGTH] empty2;
}
struct usb_extreme_v1 {
char[USBEXTREME_NAME_LENGTH] name;
char[USBEXTREME_ID_LENGTH] id;
uint8_t n_parts;
uint8_t type;
uint16_t size;
uint8_t video_mode;
uint8_t usb_extreme_version;
uint8_t magic;
char[USBEXTREME_NAME_EXT_LENGTH] name_ext;
}
enum UsbExtremeVersion {
V0 = 0x00,
V1
@ -70,3 +92,30 @@ extern(C) int oue_point_headers(const(usb_extreme_base)** headers, const(void)*
*headers = cast(const(usb_extreme_base)*) raw_headers;
return headers_nlen;
}
extern(C) int oue_version(UsbExtremeVersion* oueVersion, const(void) *headers, size_t headerslen) {
auto headers_oeu = cast(usb_extreme_v1*) headers;
auto headers_nlen = headerslen / USBEXTREME_HEADER_SIZE;
auto first_version = UsbExtremeVersion.V0;
int i;
if(!is_oue(headers, headerslen)) {
return -1;
}
for(i = 0; i < headers_nlen; i++) {
auto header = headers_oeu[i];
if (i == 0) {
first_version = get_version(header.usb_extreme_version);
} else {
if (first_version != get_version(header.usb_extreme_version)) {
*oueVersion = UsbExtremeVersion.V0;
return -2;
}
}
}
*oueVersion = first_version;
return 1;
}

27
lib/usbextreme.c
View File

@ -1,33 +1,6 @@
#include <usbextreme.h>
#include <string.h>
int oue_version(usb_extreme_versions *version, const void *headers, size_t headerslen) {
const usb_extreme_v1 *headers_oeu = headers;
int headers_nlen = (int) (headerslen / USBEXTREME_HEADER_SIZE);
usb_extreme_versions first_version = USB_EXTREME_V0;
int i;
if(!is_oue(headers, headerslen)) {
return -1;
}
for(i = 0; i < headers_nlen; i++) {
const usb_extreme_v1 header = headers_oeu[i];
if (i == 0) {
first_version = get_version(header.usb_extreme_version);
} else {
if (first_version != get_version(header.usb_extreme_version)) {
*version = USB_EXTREME_V0;
return -2;
}
}
}
*version = first_version;
return 1;
}
int oue_read_headers(usb_extreme_headers *headers, void *raw_headers, const size_t headerslen) {
usb_extreme_base *headers_ptr;
usb_extreme_versions version;