Home | History | Annotate | Line # | Download | only in nvidia 
      1 /* $NetBSD: tegra_xusbpad.c,v 1.6 2017/09/19 20:46:12 jmcneill Exp $ */
      2 
      3 /*-
      4  * Copyright (c) 2017 Jared McNeill <jmcneill (at) invisible.ca>
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  *
     16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     17  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     18  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     19  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     20  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
     21  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
     22  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
     23  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
     24  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     26  * SUCH DAMAGE.
     27  */
     28 
     29 #include <sys/cdefs.h>
     30 __KERNEL_RCSID(0, "$NetBSD: tegra_xusbpad.c,v 1.6 2017/09/19 20:46:12 jmcneill Exp $");
     31 
     32 #include <sys/param.h>
     33 #include <sys/bus.h>
     34 #include <sys/cpu.h>
     35 #include <sys/device.h>
     36 
     37 #include <dev/fdt/fdtvar.h>
     38 
     39 #include <arm/nvidia/tegra_xusbpad.h>
     40 
     41 static const struct tegra_xusbpad_ops *xusbpad_ops = NULL;
     42 static device_t xusbpad_device = NULL;
     43 
     44 void
     45 tegra_xusbpad_register(device_t dev, const struct tegra_xusbpad_ops *ops)
     46 {
     47 	KASSERT(dev != NULL && ops != NULL);
     48 	KASSERT(xusbpad_ops == NULL);
     49 	KASSERT(xusbpad_device == NULL);
     50 
     51 	xusbpad_ops = ops;
     52 	xusbpad_device = dev;
     53 }
     54 
     55 void
     56 tegra_xusbpad_sata_enable(void)
     57 {
     58 	if (xusbpad_ops == NULL || xusbpad_ops->sata_enable == NULL) {
     59 		aprint_error("%s: could not enable SATA\n", __func__);
     60 		return;
     61 	}
     62 	xusbpad_ops->sata_enable(xusbpad_device);
     63 }
     64 
     65 void
     66 tegra_xusbpad_xhci_enable(void)
     67 {
     68 	if (xusbpad_ops == NULL || xusbpad_ops->xhci_enable == NULL) {
     69 		aprint_error("%s: could not enable XHCI\n", __func__);
     70 		return;
     71 	}
     72 	xusbpad_ops->xhci_enable(xusbpad_device);
     73 }
     74