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#include "project.h"
static uint8_t code[16];
static int code_len;
static int hide;
static int show;
void code_display(void)
{
size_t i;
#if 0
lcd_erase_line(0,16);
if (code_len!=16)
lcd_write("Enter code:",0,0);
else
lcd_write("Code entered:",0,0);
#endif
for (i=0;i<sizeof(code);++i)
lcd_write_char(hide ? '*': (code[i] ? code[i]:' '),i,1);
lcd_backlight (!hide);
}
int
vendor_control_request (usbd_device * usbd_dev, struct usb_setup_data *req,
uint8_t ** buf, uint16_t * len,
int (**complete) (usbd_device * usbd_dev,
struct usb_setup_data * req))
{
(void) buf;
(void) len;
(void) usbd_dev;
(void) complete;
if ((req->bmRequestType & 0x7F) != 0x41)
return 0; /* Only accept vendor request. */
switch (req->bRequest)
{
case 0x34:
(*buf)[0] = 0x1;
(*buf)[1] = 0;
(*buf)[2] = 0;
(*buf)[3] = 0;
(*buf)[4] = 0x2;
(*buf)[5] = 0; /* iString not used here */
*len = 6;
return 1;
}
return 0;
}
void code_tick(void)
{
if (!show) return;
show--;
if (!show) {
hide++;
code_display();
}
}
void key_event (uint8_t v, int ud)
{
if (!ud) return;
if (code_len==sizeof(code)) {
code_len=0;
memset(code,' ',sizeof(code));
}
show=5000;
hide=0;
code[code_len++]=v;
code_display();
}
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