C++ (Cpp) mt_usb_init_drvvbus Examples

Example #1

File: usb20_host.c Project: P-D-A/android_kernel_lge_mt6753

void mt_usb_otg_init(struct musb *musb)
{
#ifdef CONFIG_OF
	usb_node = of_find_compatible_node(NULL, NULL, "mediatek,mt6735-usb20");
	if (usb_node == NULL) {
		pr_err("USB OTG - get USB0 node failed\n");
	} else {
		if (of_property_read_u32_index(usb_node, "iddig_gpio", 0, &iddig_pin)) {
			iddig_if_config = 0;
			pr_err("get dtsi iddig_pin fail\n");
		}
		if (of_property_read_u32_index(usb_node, "iddig_gpio", 1, &iddig_pin_mode))
			pr_err("get dtsi iddig_pin_mode fail\n");
		if (of_property_read_u32_index(usb_node, "drvvbus_gpio", 0, &drvvbus_pin)) {
			drvvbus_if_config = 0;
			pr_err("get dtsi drvvbus_pin fail\n");
		}
		if (of_property_read_u32_index(usb_node, "drvvbus_gpio", 1, &drvvbus_pin_mode))
			pr_err("get dtsi drvvbus_pin_mode fail\n");
		#if defined(CONFIG_MTK_LEGACY)
		iddig_pin |= 0x80000000;
		drvvbus_pin |= 0x80000000;
		#endif
	}

	#if !defined(CONFIG_MTK_LEGACY)
	pinctrl = devm_pinctrl_get(mtk_musb->controller);
	if (IS_ERR(pinctrl)) {
		dev_err(mtk_musb->controller, "Cannot find usb pinctrl!\n");
	}
	#endif
#endif
	/*init drrvbus*/
	mt_usb_init_drvvbus();

	/* init idpin interrupt */
	INIT_DELAYED_WORK(&musb->id_pin_work, musb_id_pin_work);
	otg_int_init();

	/* EP table */
	musb->fifo_cfg_host = fifo_cfg_host;
	musb->fifo_cfg_host_size = ARRAY_SIZE(fifo_cfg_host);

	otg_state.name = "otg_state";
	otg_state.index = 0;
	otg_state.state = 0;

	if (switch_dev_register(&otg_state))
		pr_err("switch_dev_register fail\n");
	else
		pr_debug("switch_dev register success\n");
}

Example #2

File: usb20_otg_if.c Project: 4Fwolf/motorola-hawk-kernel-3.4.67

int musb_otg_env_init(void){
    u8 power;
    //u8 intrusb;
    //step1: mask the PMU/PMIC EINT
    mtk_musb->usb_if = true;
    mtk_musb->is_host = true;//workaround for PMIC charger detection
    //mt65xx_eint_mask(EINT_CHR_DET_NUM);

    pmic_chrdet_int_en(0);

    mt_usb_init_drvvbus();

    //step5: make sure to power on the USB module
    if(mtk_musb->power)
        mtk_musb->power = FALSE;

    musb_platform_enable(mtk_musb);
    //step6: clear session bit
    musb_writeb(mtk_musb->mregs,MUSB_DEVCTL,0);
    //step7: disable and enable usb interrupt
    usb_l1intm_store = musb_readl(mtk_musb->mregs,USB_L1INTM);
    usb_intrrxe_store = musb_readw(mtk_musb->mregs,MUSB_INTRRXE);
    usb_intrtxe_store = musb_readw(mtk_musb->mregs,MUSB_INTRTXE);
    usb_intrusbe_store = musb_readb(mtk_musb->mregs,MUSB_INTRUSBE);

    musb_writel(mtk_musb->mregs,USB_L1INTM,0);
    musb_writew(mtk_musb->mregs,MUSB_INTRRXE,0);
    musb_writew(mtk_musb->mregs,MUSB_INTRTXE,0);
    musb_writeb(mtk_musb->mregs,MUSB_INTRUSBE,0);
    musb_writew(mtk_musb->mregs,MUSB_INTRRX,0xffff);
    musb_writew(mtk_musb->mregs,MUSB_INTRTX,0xffff);
    musb_writeb(mtk_musb->mregs,MUSB_INTRUSB,0xff);
    free_irq (mtk_musb->nIrq, mtk_musb);
    musb_writel(mtk_musb->mregs,USB_L1INTM,0x105);
    musb_writew(mtk_musb->mregs,MUSB_INTRTXE,1);
    musb_writeb(mtk_musb->mregs,MUSB_INTRUSBE,0xf7);
    //setp8: set the index to 0 for ep0, maybe no need. Designers said it is better not to use the index register.
    musb_writeb(mtk_musb->mregs, MUSB_INDEX, 0);
    //setp9: init message
    g_otg_message.msg = 0;
    spin_lock_init(&g_otg_message.lock);

    init_completion(&stop_event);
    #ifdef DX_DBG
    power = musb_readb(mtk_musb->mregs,MUSB_POWER);
    DBG(0,"start the USB-IF test in EM,power=0x%x!\n",power);
    #endif

    return 0;
}

Example #3

File: usb20_host.c Project: dimsink1/KK_huawei_y511

void mt_usb_otg_init(struct musb *musb)
{
    /*init drrvbus*/
    mt_usb_init_drvvbus();

    /* init idpin interrupt */
    INIT_DELAYED_WORK(&musb->id_pin_work, musb_id_pin_work);
    otg_int_init();

    /* EP table */
    musb->fifo_cfg_host = fifo_cfg_host;
    musb->fifo_cfg_host_size = ARRAY_SIZE(fifo_cfg_host);
    
    otg_state.name = "otg_state";
    otg_state.index = 0;
    otg_state.state = 0;
    
    if(switch_dev_register(&otg_state))
        printk("switch_dev_register fail\n");
    else
        printk("switch_dev register success\n");
}