57 lines
1.2 KiB
C
57 lines
1.2 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* Cadence USBSS DRD Driver - host side
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*
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* Copyright (C) 2018-2019 Cadence Design Systems.
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* Copyright (C) 2017-2018 NXP
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*
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* Authors: Peter Chen <peter.chen@nxp.com>
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* Pawel Laszczak <pawell@cadence.com>
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*/
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#include <dm.h>
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#include <dm/devres.h>
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#include <linux/compat.h>
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#include <usb.h>
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#include <usb/xhci.h>
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#include "core.h"
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#include "drd.h"
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static int __cdns3_host_init(struct cdns3 *cdns)
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{
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struct xhci_hcor *hcor;
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struct xhci_hccr *hccr;
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cdns3_drd_switch_host(cdns, 1);
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hccr = (struct xhci_hccr *)cdns->xhci_regs;
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hcor = (struct xhci_hcor *)(cdns->xhci_regs +
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HC_LENGTH(xhci_readl(&(hccr)->cr_capbase)));
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return xhci_register(cdns->dev, hccr, hcor);
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}
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static void cdns3_host_exit(struct cdns3 *cdns)
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{
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xhci_deregister(cdns->dev);
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cdns3_drd_switch_host(cdns, 0);
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}
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int cdns3_host_init(struct cdns3 *cdns)
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{
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struct cdns3_role_driver *rdrv;
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rdrv = devm_kzalloc(cdns->dev, sizeof(*rdrv), GFP_KERNEL);
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if (!rdrv)
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return -ENOMEM;
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rdrv->start = __cdns3_host_init;
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rdrv->stop = cdns3_host_exit;
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rdrv->state = CDNS3_ROLE_STATE_INACTIVE;
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rdrv->name = "host";
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cdns->roles[USB_ROLE_HOST] = rdrv;
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return 0;
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}
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