From patchwork Mon Feb 7 03:09:55 2011 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dave Airlie X-Patchwork-Id: 537061 Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) by demeter1.kernel.org (8.14.4/8.14.3) with ESMTP id p173BFrf019320 for ; Mon, 7 Feb 2011 03:11:35 GMT Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 953AE9E746 for ; Sun, 6 Feb 2011 19:11:15 -0800 (PST) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by gabe.freedesktop.org (Postfix) with ESMTP id 644B09E746 for ; Sun, 6 Feb 2011 19:09:59 -0800 (PST) Received: from int-mx01.intmail.prod.int.phx2.redhat.com (int-mx01.intmail.prod.int.phx2.redhat.com [10.5.11.11]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id p1739xc8023033 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK) for ; Sun, 6 Feb 2011 22:09:59 -0500 Received: from clockmaker-el6.bne.redhat.com (dhcp-0-222.bne.redhat.com [10.64.0.222]) by int-mx01.intmail.prod.int.phx2.redhat.com (8.13.8/8.13.8) with ESMTP id p1739tQi021101 for ; Sun, 6 Feb 2011 22:09:58 -0500 From: Dave Airlie To: dri-devel@lists.freedesktop.org Subject: [PATCH 2/2] drm: add usb framework Date: Mon, 7 Feb 2011 13:09:55 +1000 Message-Id: <1297048195-21393-2-git-send-email-airlied@gmail.com> In-Reply-To: <1297048195-21393-1-git-send-email-airlied@gmail.com> References: <1297048195-21393-1-git-send-email-airlied@gmail.com> X-Scanned-By: MIMEDefang 2.67 on 10.5.11.11 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.11 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: dri-devel-bounces+patchwork-dri-devel=patchwork.kernel.org@lists.freedesktop.org Errors-To: dri-devel-bounces+patchwork-dri-devel=patchwork.kernel.org@lists.freedesktop.org X-Greylist: IP, sender and recipient auto-whitelisted, not delayed by milter-greylist-4.2.6 (demeter1.kernel.org [140.211.167.41]); Mon, 07 Feb 2011 03:11:35 +0000 (UTC) diff --git a/drivers/gpu/drm/Makefile b/drivers/gpu/drm/Makefile index d9cb3e3..89cf05a 100644 --- a/drivers/gpu/drm/Makefile +++ b/drivers/gpu/drm/Makefile @@ -12,7 +12,7 @@ drm-y := drm_auth.o drm_buffer.o drm_bufs.o drm_cache.o \ drm_platform.o drm_sysfs.o drm_hashtab.o drm_sman.o drm_mm.o \ drm_crtc.o drm_modes.o drm_edid.o \ drm_info.o drm_debugfs.o drm_encoder_slave.o \ - drm_trace_points.o drm_global.o + drm_trace_points.o drm_global.o drm_usb.o drm-$(CONFIG_COMPAT) += drm_ioc32.o diff --git a/drivers/gpu/drm/drm_stub.c b/drivers/gpu/drm/drm_stub.c index 0bf2c77..001273d 100644 --- a/drivers/gpu/drm/drm_stub.c +++ b/drivers/gpu/drm/drm_stub.c @@ -463,6 +463,7 @@ void drm_put_dev(struct drm_device *dev) drm_put_minor(&dev->primary); + list_del(&dev->driver_item); if (dev->devname) { kfree(dev->devname); dev->devname = NULL; diff --git a/drivers/gpu/drm/drm_usb.c b/drivers/gpu/drm/drm_usb.c new file mode 100644 index 0000000..206d230 --- /dev/null +++ b/drivers/gpu/drm/drm_usb.c @@ -0,0 +1,117 @@ +#include "drmP.h" +#include + +#ifdef CONFIG_USB +int drm_get_usb_dev(struct usb_interface *interface, + const struct usb_device_id *id, + struct drm_driver *driver) +{ + struct drm_device *dev; + struct usb_device *usbdev; + int ret; + + DRM_DEBUG("\n"); + + dev = kzalloc(sizeof(*dev), GFP_KERNEL); + if (!dev) + return -ENOMEM; + + usbdev = interface_to_usbdev(interface); + dev->usbdev = usbdev; + dev->dev = &usbdev->dev; + + mutex_lock(&drm_global_mutex); + + ret = drm_fill_in_dev(dev, NULL, driver); + if (ret) { + printk(KERN_ERR "DRM: Fill_in_dev failed.\n"); + goto err_g1; + } + + usb_set_intfdata(interface, dev); + ret = drm_get_minor(dev, &dev->control, DRM_MINOR_CONTROL); + if (ret) + goto err_g1; + + ret = drm_get_minor(dev, &dev->primary, DRM_MINOR_LEGACY); + if (ret) + goto err_g2; + + if (dev->driver->load) { + ret = dev->driver->load(dev, 0); + if (ret) + goto err_g3; + } + + /* setup the grouping for the legacy output */ + ret = drm_mode_group_init_legacy_group(dev, + &dev->primary->mode_group); + if (ret) + goto err_g3; + + list_add_tail(&dev->driver_item, &driver->device_list); + + mutex_unlock(&drm_global_mutex); + + DRM_INFO("Initialized %s %d.%d.%d %s on minor %d\n", + driver->name, driver->major, driver->minor, driver->patchlevel, + driver->date, dev->primary->index); + + return 0; + +err_g3: + drm_put_minor(&dev->primary); +err_g2: + drm_put_minor(&dev->control); +err_g1: + kfree(dev); + mutex_unlock(&drm_global_mutex); + return ret; + +} +EXPORT_SYMBOL(drm_get_usb_dev); + +static int drm_usb_get_irq(struct drm_device *dev) +{ + return 0; +} + +static const char *drm_usb_get_name(struct drm_device *dev) +{ + return "USB"; +} + +static int drm_usb_set_busid(struct drm_device *dev, + struct drm_master *master) +{ + return 0; +} + +static struct drm_bus drm_usb_bus = { + .bus_type = DRIVER_BUS_USB, + .get_irq = drm_usb_get_irq, + .get_name = drm_usb_get_name, + .set_busid = drm_usb_set_busid, +}; + +int drm_usb_init(struct drm_driver *driver, struct usb_driver *udriver) +{ + int res; + DRM_DEBUG("\n"); + + INIT_LIST_HEAD(&driver->device_list); + driver->kdriver.usb = udriver; + driver->bus = &drm_usb_bus; + + res = usb_register(udriver); + return res; +} +EXPORT_SYMBOL(drm_usb_init); + +void drm_usb_exit(struct drm_driver *driver, + struct usb_driver *udriver) +{ + usb_deregister(udriver); +} +EXPORT_SYMBOL(drm_usb_exit); +#endif diff --git a/include/drm/drmP.h b/include/drm/drmP.h index a99aefb..52a2fd2 100644 --- a/include/drm/drmP.h +++ b/include/drm/drmP.h @@ -925,6 +925,7 @@ struct drm_driver { union { struct pci_driver *pci; struct platform_device *platform_device; + struct usb_driver *usb; } kdriver; struct drm_bus *bus; @@ -1130,6 +1131,7 @@ struct drm_device { #endif struct platform_device *platformdev; /**< Platform device struture */ + struct usb_device *usbdev; struct drm_sg_mem *sg; /**< Scatter gather memory */ int num_crtcs; /**< Number of CRTCs on this device */ diff --git a/include/drm/drm_usb.h b/include/drm/drm_usb.h new file mode 100644 index 0000000..33506c1 --- /dev/null +++ b/include/drm/drm_usb.h @@ -0,0 +1,15 @@ +#ifndef DRM_USB_H +#define DRM_USB_H + +#include + +#include + +extern int drm_usb_init(struct drm_driver *driver, struct usb_driver *udriver); +extern void drm_usb_exit(struct drm_driver *driver, struct usb_driver *udriver); + +int drm_get_usb_dev(struct usb_interface *interface, + const struct usb_device_id *id, + struct drm_driver *driver); + +#endif