/*
************************************************************************************************************
*
* function
*
* name :
*
* parmeters :
*
* return :
*
* note :
*
*
************************************************************************************************************
*/
void sunxi_usb_main_loop(int delaytime)
{
int ret;
if(sunxi_usb_init(delaytime))
{
printf("usb init fail\n");
sunxi_usb_exit();
return ;
}
printf("usb init ok\n");
while(1)
{
ret = sunxi_udev_active->state_loop(&sunxi_ubuf);
if(ret)
{
break;
}
if(ctrlc())
{
break;
}
}
printf("exit usb\n");
sunxi_usb_exit();
sunxi_update_subsequent_processing(ret);
return ;
}
/*
************************************************************************************************************
*
* function
*
* name :
*
* parmeters :
*
* return :
*
* note :
*
*
************************************************************************************************************
*/
static void __continue(void)
{
char response[32];
memset(response, 0, 32);
strcpy(response,"OKAY");
__sunxi_fastboot_send_status(response, strlen(response));
sunxi_usb_exit();
if(uboot_spare_head.boot_data.storage_type)
{
setenv("bootcmd", "run setargs_mmc boot_normal");
}
else
{
setenv("bootcmd", "run setargs_nand boot_normal");
}
do_bootd(NULL, 0, 1, NULL);
return;
}
/*
************************************************************************************************************
*
* function
*
* name :
*
* parmeters :
*
* return :
*
* note :
*
*
************************************************************************************************************
*/
int do_burn_from_boot(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
struct timer_list timer_t;
int ret;
if(gd->vbus_status == SUNXI_VBUS_NOT_EXIST)
{
printf("out of usb burn from boot without usb\n");
return 0;
}
tick_printf("usb burn from boot\n");
if(sunxi_usb_dev_register(4) < 0)
{
printf("usb burn fail: not support burn private data\n");
return -1;
}
sunxi_usb_burn_from_boot_overtime = 0;
if(sunxi_usb_init(0))
{
printf("%s usb init fail\n", __func__);
sunxi_usb_exit();
return 0;
}
timer_t.data = (unsigned long)&timer_t;
timer_t.expires = 800;
timer_t.function = probe_usb_overtime;
init_timer(&timer_t);
tick_printf("usb prepare ok\n");
add_timer(&timer_t);
while(1)
{
if(sunxi_usb_burn_from_boot_init) //当usb sof中断触发，跳出循环
{
printf("usb sof ok\n");
del_timer(&timer_t);
break;
}
if(sunxi_usb_burn_from_boot_overtime) //当定时时间到，还没有中断，跳出循环
{
tick_printf("overtime\n");
del_timer(&timer_t);
sunxi_usb_exit();
tick_printf("%s usb : no usb exist\n", __func__);
return 0;
}
}
sunxi_usb_burn_from_boot_overtime = 0;
tick_printf("usb probe ok\n"); //开始等待加载驱动，这里不需要延时
sunxi_usb_burn_from_boot_overtime = 0;
tick_printf("usb setup ok\n");
timer_t.expires = 3000;
add_timer(&timer_t);
while(1)
{
ret = sunxi_usb_extern_loop(); //执行usb主循环
if(ret) //当执行结果非0，表示到了最后一个步骤，需要往后执行
{
break;
}
if(sunxi_usb_burn_from_boot_handshake) //当握手成功，停止检查定时器
{
del_timer(&timer_t);
}
if(sunxi_usb_burn_from_boot_overtime) //当定时时间到，还没有握手成功，跳出循环
{
del_timer(&timer_t);
sunxi_usb_exit();
tick_printf("%s usb : have no handshake\n", __func__);
return 0;
}
if(ctrlc())
{
del_timer(&timer_t);
ret = SUNXI_UPDATE_NEXT_ACTION_NORMAL;
break;
}
if(sunxi_key_read()>0)
{
del_timer(&timer_t);
ret = SUNXI_UPDATE_NEXT_ACTION_NORMAL;
break;
}
}
tick_printf("exit usb burn from boot\n");
sunxi_usb_exit();
sunxi_update_subsequent_processing(ret);
return 0;
}
