/* * Copyright (C) 2013 - Virtual Open Systems * Author: Antonios Motakis * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License, version 2, as * published by the Free Software Foundation. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. */ #include #include #include #include #include "vfio_platform_private.h" #define DRIVER_VERSION "0.10" #define DRIVER_AUTHOR "Antonios Motakis " #define DRIVER_DESC "VFIO for AMBA devices - User Level meta-driver" /* probing devices from the AMBA bus */ static struct resource *get_amba_resource(struct vfio_platform_device *vdev, int i) { struct amba_device *adev = (struct amba_device *) vdev->opaque; if (i == 0) return &adev->res; return NULL; } static int get_amba_irq(struct vfio_platform_device *vdev, int i) { struct amba_device *adev = (struct amba_device *) vdev->opaque; int ret = 0; if (i < AMBA_NR_IRQS) ret = adev->irq[i]; /* zero is an unset IRQ for AMBA devices */ return ret ? ret : -ENXIO; } static int vfio_amba_probe(struct amba_device *adev, const struct amba_id *id) { struct vfio_platform_device *vdev; int ret; vdev = kzalloc(sizeof(*vdev), GFP_KERNEL); if (!vdev) return -ENOMEM; vdev->name = kasprintf(GFP_KERNEL, "vfio-amba-%08x", adev->periphid); if (!vdev->name) { kfree(vdev); return -ENOMEM; } vdev->opaque = (void *) adev; vdev->flags = VFIO_DEVICE_FLAGS_AMBA; vdev->get_resource = get_amba_resource; vdev->get_irq = get_amba_irq; vdev->parent_module = THIS_MODULE; vdev->reset_required = false; ret = vfio_platform_probe_common(vdev, &adev->dev); if (ret) { kfree(vdev->name); kfree(vdev); } return ret; } static int vfio_amba_remove(struct amba_device *adev) { struct vfio_platform_device *vdev; vdev = vfio_platform_remove_common(&adev->dev); if (vdev) { kfree(vdev->name); kfree(vdev); return 0; } return -EINVAL; } static struct amba_id pl330_ids[] = { { 0, 0 }, }; MODULE_DEVICE_TABLE(amba, pl330_ids); static struct amba_driver vfio_amba_driver = { .probe = vfio_amba_probe, .remove = vfio_amba_remove, .id_table = pl330_ids, .drv = { .name = "vfio-amba", .owner = THIS_MODULE, }, }; module_amba_driver(vfio_amba_driver); MODULE_VERSION(DRIVER_VERSION); MODULE_LICENSE("GPL v2"); MODULE_AUTHOR(DRIVER_AUTHOR); MODULE_DESCRIPTION(DRIVER_DESC); ass='txt' type='search' size='10' name='q' value=''/>

path: root/sound/usb/line6/playback.c

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