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https://gitee.com/Vancouver2017/luban-lite-t3e-pro.git
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66 lines
1.6 KiB
C
66 lines
1.6 KiB
C
/*
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* Copyright (c) 2023, Artinchip Technology Co., Ltd
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Wu Dehuang <dehuang.wu@artinchip.com>
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <stdint.h>
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#include <string.h>
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#include <aic_core.h>
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#include <aic_hal.h>
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#include <usb_reg.h>
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#include <usb_drv.h>
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#include <hal_syscfg.h>
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#include "usbc.h"
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/*
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* When the USB0 works as device, checking if it is connecting with PC will
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* spend about 200ms, it is too long if we just waiting here.
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*
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* To save the waiting time, we split the checking to 2 parts:
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* 1. Initialize it when bus clock is set
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* 2. Double check after Linux image is loaded(for Falcon mode)
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* 3. If the status is connecting, than force to load u-boot again to force
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* run u-boot
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*/
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extern struct usb_device usbupg_device;
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void usbd_connection_check_start(void)
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{
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#ifndef AIC_SYSCFG_DRV_V12
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syscfg_usb_phy0_sw_host(0);
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#endif
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aic_udc_init(&usbupg_device);
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}
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void usbd_connection_check_end(void)
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{
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usbc_soft_disconnect();
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hal_clk_disable_assertrst(CLK_USBD);
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hal_clk_disable_assertrst(CLK_USB_PHY0);
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}
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extern void reset_intr_proc(void);
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int usbd_connection_check_status(void)
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{
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u32 sts;
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u64 start, timeout = 500;
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start = aic_get_time_ms();
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do {
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sts = usbc_intr_get_gintsts();
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if (sts & USB_DEV_GINTSTS_USBRST)
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reset_intr_proc();
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if (sts & USB_DEV_GINTSTS_ENUMDNE) {
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usbc_intr_clear_gintsts_pending(USB_DEV_GINTSTS_ENUMDNE);
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return 1;
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}
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} while ((aic_get_time_ms() - start) < timeout);
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return 0;
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}
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