cregit-Linux how code gets into the kernel

Release 4.10 drivers/media/media-device.c

Directory: drivers/media
/*
 * Media device
 *
 * Copyright (C) 2010 Nokia Corporation
 *
 * Contacts: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
 *           Sakari Ailus <sakari.ailus@iki.fi>
 *
 * 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.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

/* We need to access legacy defines from linux/media.h */

#define __NEED_MEDIA_LEGACY_API

#include <linux/compat.h>
#include <linux/export.h>
#include <linux/idr.h>
#include <linux/ioctl.h>
#include <linux/media.h>
#include <linux/slab.h>
#include <linux/types.h>
#include <linux/pci.h>
#include <linux/usb.h>

#include <media/media-device.h>
#include <media/media-devnode.h>
#include <media/media-entity.h>

#ifdef CONFIG_MEDIA_CONTROLLER

/* -----------------------------------------------------------------------------
 * Userspace API
 */


static inline void __user *media_get_uptr(__u64 arg) { return (void __user *)(uintptr_t)arg; }

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static int media_device_open(struct file *filp) { return 0; }

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static int media_device_close(struct file *filp) { return 0; }

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static int media_device_get_info(struct media_device *dev, struct media_device_info *info) { memset(info, 0, sizeof(*info)); if (dev->driver_name[0]) strlcpy(info->driver, dev->driver_name, sizeof(info->driver)); else strlcpy(info->driver, dev->dev->driver->name, sizeof(info->driver)); strlcpy(info->model, dev->model, sizeof(info->model)); strlcpy(info->serial, dev->serial, sizeof(info->serial)); strlcpy(info->bus_info, dev->bus_info, sizeof(info->bus_info)); info->media_version = MEDIA_API_VERSION; info->hw_revision = dev->hw_revision; info->driver_version = dev->driver_version; return 0; }

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nicolas therynicolas thery21.27%125.00%
Total158100.00%4100.00%


static struct media_entity *find_entity(struct media_device *mdev, u32 id) { struct media_entity *entity; int next = id & MEDIA_ENT_ID_FLAG_NEXT; id &= ~MEDIA_ENT_ID_FLAG_NEXT; media_device_for_each_entity(entity, mdev) { if (((media_entity_id(entity) == id) && !next) || ((media_entity_id(entity) > id) && next)) { return entity; } } return NULL; }

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static long media_device_enum_entities(struct media_device *mdev, struct media_entity_desc *entd) { struct media_entity *ent; ent = find_entity(mdev, entd->id); if (ent == NULL) return -EINVAL; memset(entd, 0, sizeof(*entd)); entd->id = media_entity_id(ent); if (ent->name) strlcpy(entd->name, ent->name, sizeof(entd->name)); entd->type = ent->function; entd->revision = 0; /* Unused */ entd->flags = ent->flags; entd->group_id = 0; /* Unused */ entd->pads = ent->num_pads; entd->links = ent->num_links - ent->num_backlinks; /* * Workaround for a bug at media-ctl <= v1.10 that makes it to * do the wrong thing if the entity function doesn't belong to * either MEDIA_ENT_F_OLD_BASE or MEDIA_ENT_F_OLD_SUBDEV_BASE * Ranges. * * Non-subdevices are expected to be at the MEDIA_ENT_F_OLD_BASE, * or, otherwise, will be silently ignored by media-ctl when * printing the graphviz diagram. So, map them into the devnode * old range. */ if (ent->function < MEDIA_ENT_F_OLD_BASE || ent->function > MEDIA_ENT_T_DEVNODE_UNKNOWN) { if (is_media_entity_v4l2_subdev(ent)) entd->type = MEDIA_ENT_F_V4L2_SUBDEV_UNKNOWN; else if (ent->function != MEDIA_ENT_F_IO_V4L) entd->type = MEDIA_ENT_T_DEVNODE_UNKNOWN; } memcpy(&entd->raw, &ent->info, sizeof(ent->info)); return 0; }

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clemens ladischclemens ladisch136.31%112.50%
Total206100.00%8100.00%


static void media_device_kpad_to_upad(const struct media_pad *kpad, struct media_pad_desc *upad) { upad->entity = media_entity_id(kpad->entity); upad->index = kpad->index; upad->flags = kpad->flags; }

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static long media_device_enum_links(struct media_device *mdev, struct media_links_enum *links) { struct media_entity *entity; entity = find_entity(mdev, links->entity); if (entity == NULL) return -EINVAL; if (links->pads) { unsigned int p; for (p = 0; p < entity->num_pads; p++) { struct media_pad_desc pad; memset(&pad, 0, sizeof(pad)); media_device_kpad_to_upad(&entity->pads[p], &pad); if (copy_to_user(&links->pads[p], &pad, sizeof(pad))) return -EFAULT; } } if (links->links) { struct media_link *link; struct media_link_desc __user *ulink_desc = links->links; list_for_each_entry(link, &entity->links, list) { struct media_link_desc klink_desc; /* Ignore backlinks. */ if (link->source->entity != entity) continue; memset(&klink_desc, 0, sizeof(klink_desc)); media_device_kpad_to_upad(link->source, &klink_desc.source); media_device_kpad_to_upad(link->sink, &klink_desc.sink); klink_desc.flags = link->flags; if (copy_to_user(ulink_desc, &klink_desc, sizeof(*ulink_desc))) return -EFAULT; ulink_desc++; } } return 0; }

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sakari ailussakari ailus114.45%233.33%
Total247100.00%6100.00%


static long media_device_setup_link(struct media_device *mdev, struct media_link_desc *linkd) { struct media_link *link = NULL; struct media_entity *source; struct media_entity *sink; /* Find the source and sink entities and link. */ source = find_entity(mdev, linkd->source.entity); sink = find_entity(mdev, linkd->sink.entity); if (source == NULL || sink == NULL) return -EINVAL; if (linkd->source.index >= source->num_pads || linkd->sink.index >= sink->num_pads) return -EINVAL; link = media_entity_find_link(&source->pads[linkd->source.index], &sink->pads[linkd->sink.index]); if (link == NULL) return -EINVAL; /* Setup the link on both entities. */ return __media_entity_setup_link(link, linkd->flags); }

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static long media_device_get_topology(struct media_device *mdev, struct media_v2_topology *topo) { struct media_entity *entity; struct media_interface *intf; struct media_pad *pad; struct media_link *link; struct media_v2_entity kentity, __user *uentity; struct media_v2_interface kintf, __user *uintf; struct media_v2_pad kpad, __user *upad; struct media_v2_link klink, __user *ulink; unsigned int i; int ret = 0; topo->topology_version = mdev->topology_version; /* Get entities and number of entities */ i = 0; uentity = media_get_uptr(topo->ptr_entities); media_device_for_each_entity(entity, mdev) { i++; if (ret || !uentity) continue; if (i > topo->num_entities) { ret = -ENOSPC; continue; } /* Copy fields to userspace struct if not error */ memset(&kentity, 0, sizeof(kentity)); kentity.id = entity->graph_obj.id; kentity.function = entity->function; strncpy(kentity.name, entity->name, sizeof(kentity.name)); if (copy_to_user(uentity, &kentity, sizeof(kentity))) ret = -EFAULT; uentity++; } topo->num_entities = i; /* Get interfaces and number of interfaces */ i = 0; uintf = media_get_uptr(topo->ptr_interfaces); media_device_for_each_intf(intf, mdev) { i++; if (ret || !uintf) continue; if (i > topo->num_interfaces) { ret = -ENOSPC; continue; } memset(&kintf, 0, sizeof(kintf)); /* Copy intf fields to userspace struct */ kintf.id = intf->graph_obj.id; kintf.intf_type = intf->type; kintf.flags = intf->flags; if (media_type(&intf->graph_obj) == MEDIA_GRAPH_INTF_DEVNODE) { struct media_intf_devnode *devnode; devnode = intf_to_devnode(intf); kintf.devnode.major = devnode->major; kintf.devnode.minor = devnode->minor; } if (copy_to_user(uintf, &kintf, sizeof(kintf))) ret = -EFAULT; uintf++; } topo->num_interfaces = i; /* Get pads and number of pads */ i = 0; upad = media_get_uptr(topo->ptr_pads); media_device_for_each_pad(pad, mdev) { i++; if (ret || !upad) continue; if (i > topo->num_pads) { ret = -ENOSPC; continue; } memset(&kpad, 0, sizeof(kpad)); /* Copy pad fields to userspace struct */ kpad.id = pad->graph_obj.id; kpad.entity_id = pad->entity->graph_obj.id; kpad.flags = pad->flags; if (copy_to_user(upad, &kpad, sizeof(kpad))) ret = -EFAULT; upad++; } topo->num_pads = i; /* Get links and number of links */ i = 0; ulink = media_get_uptr(topo->ptr_links); media_device_for_each_link(link, mdev) { if (link->is_backlink) continue; i++; if (ret || !ulink) continue; if (i > topo->num_links) { ret = -ENOSPC; continue; } memset(&klink, 0, sizeof(klink)); /* Copy link fields to userspace struct */ klink.id = link->graph_obj.id; klink.source_id = link->gobj0->id; klink.sink_id = link->gobj1->id; klink.flags = link->flags; if (copy_to_user(ulink, &klink, sizeof(klink))) ret = -EFAULT; ulink++; } topo->num_links = i; return ret; }

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sakari ailussakari ailus40.63%225.00%
Total639100.00%8100.00%


static long copy_arg_from_user(void *karg, void __user *uarg, unsigned int cmd) { /* All media IOCTLs are _IOWR() */ if (copy_from_user(karg, uarg, _IOC_SIZE(cmd))) return -EFAULT; return 0; }

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Total41100.00%2100.00%


static long copy_arg_to_user(void __user *uarg, void *karg, unsigned int cmd) { /* All media IOCTLs are _IOWR() */ if (copy_to_user(uarg, karg, _IOC_SIZE(cmd))) return -EFAULT; return 0; }

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sakari ailussakari ailus2356.10%150.00%
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Total41100.00%2100.00%

/* Do acquire the graph mutex */ #define MEDIA_IOC_FL_GRAPH_MUTEX BIT(0) #define MEDIA_IOC_ARG(__cmd, func, fl, from_user, to_user) \ [_IOC_NR(MEDIA_IOC_##__cmd)] = { \ .cmd = MEDIA_IOC_##__cmd, \ .fn = (long (*)(struct media_device *, void *))func, \ .flags = fl, \ .arg_from_user = from_user, \ .arg_to_user = to_user, \ } #define MEDIA_IOC(__cmd, func, fl) \ MEDIA_IOC_ARG(__cmd, func, fl, copy_arg_from_user, copy_arg_to_user) /* the table is indexed by _IOC_NR(cmd) */ struct media_ioctl_info { unsigned int cmd; unsigned short flags; long (*fn)(struct media_device *dev, void *arg); long (*arg_from_user)(void *karg, void __user *uarg, unsigned int cmd); long (*arg_to_user)(void __user *uarg, void *karg, unsigned int cmd); }; static const struct media_ioctl_info ioctl_info[] = { MEDIA_IOC(DEVICE_INFO, media_device_get_info, MEDIA_IOC_FL_GRAPH_MUTEX), MEDIA_IOC(ENUM_ENTITIES, media_device_enum_entities, MEDIA_IOC_FL_GRAPH_MUTEX), MEDIA_IOC(ENUM_LINKS, media_device_enum_links, MEDIA_IOC_FL_GRAPH_MUTEX), MEDIA_IOC(SETUP_LINK, media_device_setup_link, MEDIA_IOC_FL_GRAPH_MUTEX), MEDIA_IOC(G_TOPOLOGY, media_device_get_topology, MEDIA_IOC_FL_GRAPH_MUTEX), };
static long media_device_ioctl(struct file *filp, unsigned int cmd, unsigned long __arg) { struct media_devnode *devnode = media_devnode_data(filp); struct media_device *dev = devnode->media_dev; const struct media_ioctl_info *info; void __user *arg = (void __user *)__arg; char __karg[256], *karg = __karg; long ret; if (_IOC_NR(cmd) >= ARRAY_SIZE(ioctl_info) || ioctl_info[_IOC_NR(cmd)].cmd != cmd) return -ENOIOCTLCMD; info = &ioctl_info[_IOC_NR(cmd)]; if (_IOC_SIZE(info->cmd) > sizeof(__karg)) { karg = kmalloc(_IOC_SIZE(info->cmd), GFP_KERNEL); if (!karg) return -ENOMEM; } if (info->arg_from_user) { ret = info->arg_from_user(karg, arg, cmd); if (ret) goto out_free; } if (info->flags & MEDIA_IOC_FL_GRAPH_MUTEX) mutex_lock(&dev->graph_mutex); ret = info->fn(dev, karg); if (info->flags & MEDIA_IOC_FL_GRAPH_MUTEX) mutex_unlock(&dev->graph_mutex); if (!ret && info->arg_to_user) ret = info->arg_to_user(arg, karg, cmd); out_free: if (karg != __karg) kfree(karg); return ret; }

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Total257100.00%10100.00%

#ifdef CONFIG_COMPAT struct media_links_enum32 { __u32 entity; compat_uptr_t pads; /* struct media_pad_desc * */ compat_uptr_t links; /* struct media_link_desc * */ __u32 reserved[4]; };
static long media_device_enum_links32(struct media_device *mdev, struct media_links_enum32 __user *ulinks) { struct media_links_enum links; compat_uptr_t pads_ptr, links_ptr; memset(&links, 0, sizeof(links)); if (get_user(links.entity, &ulinks->entity) || get_user(pads_ptr, &ulinks->pads) || get_user(links_ptr, &ulinks->links)) return -EFAULT; links.pads = compat_ptr(pads_ptr); links.links = compat_ptr(links_ptr); return media_device_enum_links(mdev, &links); }

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#define MEDIA_IOC_ENUM_LINKS32 _IOWR('|', 0x02, struct media_links_enum32)
static long media_device_compat_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) { struct media_devnode *devnode = media_devnode_data(filp); struct media_device *dev = devnode->media_dev; long ret; switch (cmd) { case MEDIA_IOC_ENUM_LINKS32: mutex_lock(&dev->graph_mutex); ret = media_device_enum_links32(dev, (struct media_links_enum32 __user *)arg); mutex_unlock(&dev->graph_mutex); break; default: return media_device_ioctl(filp, cmd, arg); } return ret; }

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#endif /* CONFIG_COMPAT */ static const struct media_file_operations media_device_fops = { .owner = THIS_MODULE, .open = media_device_open, .ioctl = media_device_ioctl, #ifdef CONFIG_COMPAT .compat_ioctl = media_device_compat_ioctl, #endif /* CONFIG_COMPAT */ .release = media_device_close, }; /* ----------------------------------------------------------------------------- * sysfs */
static ssize_t show_model(struct device *cd, struct device_attribute *attr, char *buf) { struct media_devnode *devnode = to_media_devnode(cd); struct media_device *mdev = devnode->media_dev; return sprintf(buf, "%.*s\n", (int)sizeof(mdev->model), mdev->model); }

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static DEVICE_ATTR(model, S_IRUGO, show_model, NULL); /* ----------------------------------------------------------------------------- * Registration/unregistration */
static void media_device_release(struct media_devnode *mdev) { dev_dbg(mdev->parent, "Media device released\n"); }

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/** * media_device_register_entity - Register an entity with a media device * @mdev: The media device * @entity: The entity */
int __must_check media_device_register_entity(struct media_device *mdev, struct media_entity *entity) { struct media_entity_notify *notify, *next; unsigned int i; int ret; if (entity->function == MEDIA_ENT_F_V4L2_SUBDEV_UNKNOWN || entity->function == MEDIA_ENT_F_UNKNOWN) dev_warn(mdev->dev, "Entity type for entity %s was not initialized!\n", entity->name); /* Warn if we apparently re-register an entity */ WARN_ON(entity->graph_obj.mdev != NULL); entity->graph_obj.mdev = mdev; INIT_LIST_HEAD(&entity->links); entity->num_links = 0; entity->num_backlinks = 0; if (!ida_pre_get(&mdev->entity_internal_idx, GFP_KERNEL)) return -ENOMEM; mutex_lock(&mdev->graph_mutex); ret = ida_get_new_above(&mdev->entity_internal_idx, 1, &entity->internal_idx); if (ret < 0) { mutex_unlock(&mdev->graph_mutex); return ret; } mdev->entity_internal_idx_max = max(mdev->entity_internal_idx_max, entity->internal_idx); /* Initialize media_gobj embedded at the entity */ media_gobj_create(mdev, MEDIA_GRAPH_ENTITY, &entity->graph_obj); /* Initialize objects at the pads */ for (i = 0; i < entity->num_pads; i++) media_gobj_create(mdev, MEDIA_GRAPH_PAD, &entity->pads[i].graph_obj); /* invoke entity_notify callbacks */ list_for_each_entry_safe(notify, next, &mdev->entity_notify, list) { (notify)->notify(entity, notify->notify_data); } if (mdev->entity_internal_idx_max >= mdev->pm_count_walk.ent_enum.idx_max) { struct media_entity_graph new = { .top = 0 }; /* * Initialise the new graph walk before cleaning up * the old one in order not to spoil the graph walk * object of the media device if graph walk init fails. */ ret = media_entity_graph_walk_init(&new, mdev); if (ret) { mutex_unlock(&mdev->graph_mutex); return ret; } media_entity_graph_walk_cleanup(&mdev->pm_count_walk); mdev->pm_count_walk = new; } mutex_unlock(&mdev->graph_mutex); return 0; }

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shuah khanshuah khan3410.43%18.33%
Total326100.00%12100.00%

EXPORT_SYMBOL_GPL(media_device_register_entity);
static void __media_device_unregister_entity(struct media_entity *entity) { struct media_device *mdev = entity->graph_obj.mdev; struct media_link *link, *tmp; struct media_interface *intf; unsigned int i; ida_simple_remove(&mdev->entity_internal_idx, entity->internal_idx); /* Remove all interface links pointing to this entity */ list_for_each_entry(intf, &mdev->interfaces, graph_obj.list) { list_for_each_entry_safe(link, tmp, &intf->links, list) { if (link->entity == entity) __media_remove_intf_link(link); } } /* Remove all data links that belong to this entity */ __media_entity_remove_links(entity); /* Remove all pads that belong to this entity */ for (i = 0; i < entity->num_pads; i++) media_gobj_destroy(&entity->pads[i].graph_obj); /* Remove the entity */ media_gobj_destroy(&entity->graph_obj); /* invoke entity_notify callbacks to handle entity removal?? */ entity->graph_obj.mdev = NULL; }

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sakari ailussakari ailus128.57%111.11%
shuah khanshuah khan10.71%111.11%
Total140100.00%9100.00%


void media_device_unregister_entity(struct media_entity *entity) { struct media_device *mdev = entity->graph_obj.mdev; if (mdev == NULL) return; mutex_lock(&mdev->graph_mutex); __media_device_unregister_entity(entity); mutex_unlock(&mdev->graph_mutex); }

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EXPORT_SYMBOL_GPL(media_device_unregister_entity); /** * media_device_init() - initialize a media device * @mdev: The media device * * The caller is responsible for initializing the media device before * registration. The following fields must be set: * * - dev must point to the parent device * - model must be filled with the device model name */
void media_device_init(struct media_device *mdev) { INIT_LIST_HEAD(&mdev->entities); INIT_LIST_HEAD(&mdev->interfaces); INIT_LIST_HEAD(&mdev->pads); INIT_LIST_HEAD(&mdev->links); INIT_LIST_HEAD(&mdev->entity_notify); mutex_init(&mdev->graph_mutex); ida_init(&mdev->entity_internal_idx); dev_dbg(mdev->dev, "Media device initialized\n"); }

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javier martinez canillasjavier martinez canillas1317.33%225.00%
laurent pinchartlaurent pinchart1216.00%112.50%
shuah khanshuah khan810.67%112.50%
sakari ailussakari ailus810.67%112.50%
Total75100.00%8100.00%

EXPORT_SYMBOL_GPL(media_device_init);
void media_device_cleanup(struct media_device *mdev) { ida_destroy(&mdev->entity_internal_idx); mdev->entity_internal_idx_max = 0; media_entity_graph_walk_cleanup(&mdev->pm_count_walk); mutex_destroy(&mdev->graph_mutex); }

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EXPORT_SYMBOL_GPL(media_device_cleanup);
int __must_check __media_device_register(struct media_device *mdev, struct module *owner) { struct media_devnode *devnode; int ret; devnode = kzalloc(sizeof(*devnode), GFP_KERNEL); if (!devnode) return -ENOMEM; /* Register the device node. */ mdev->devnode = devnode; devnode->fops = &media_device_fops; devnode->parent = mdev->dev; devnode->release = media_device_release; /* Set version 0 to indicate user-space that the graph is static */ mdev->topology_version = 0; ret = media_devnode_register(mdev, devnode, owner); if (ret < 0) { /* devnode free is handled in media_devnode_*() */ mdev->devnode = NULL; return ret; } ret = device_create_file(&devnode->dev, &dev_attr_model); if (ret < 0) { /* devnode free is handled in media_devnode_*() */ mdev->devnode = NULL; media_devnode_unregister_prepare(devnode); media_devnode_unregister(devnode); return ret; } dev_dbg(mdev->dev, "Media device registered\n"); return 0; }

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shuah khanshuah khan74.29%220.00%
Total163100.00%10100.00%

EXPORT_SYMBOL_GPL(__media_device_register);
int __must_check media_device_register_entity_notify(struct media_device *mdev, struct media_entity_notify *nptr) { mutex_lock(&mdev->graph_mutex); list_add_tail(&nptr->list, &mdev->entity_notify); mutex_unlock(&mdev->graph_mutex); return 0; }

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shuah khanshuah khan4491.67%150.00%
mauro carvalho chehabmauro carvalho chehab48.33%150.00%
Total48100.00%2100.00%

EXPORT_SYMBOL_GPL(media_device_register_entity_notify); /* * Note: Should be called with mdev->lock held. */
static void __media_device_unregister_entity_notify(struct media_device *mdev, struct media_entity_notify *nptr) { list_del(&nptr->list); }

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shuah khanshuah khan24100.00%1100.00%
Total24100.00%1100.00%


void media_device_unregister_entity_notify(struct media_device *mdev, struct media_entity_notify *nptr) { mutex_lock(&mdev->graph_mutex); __media_device_unregister_entity_notify(mdev, nptr); mutex_unlock(&mdev->graph_mutex); }

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PersonTokensPropCommitsCommitProp
shuah khanshuah khan3489.47%150.00%
mauro carvalho chehabmauro carvalho chehab410.53%150.00%
Total38100.00%2100.00%

EXPORT_SYMBOL_GPL(media_device_unregister_entity_notify);
void media_device_unregister(struct media_device *mdev) { struct media_entity *entity; struct media_entity *next; struct media_interface *intf, *tmp_intf; struct media_entity_notify *notify, *nextp; if (mdev == NULL) return; mutex_lock(&mdev->graph_mutex); /* Check if mdev was ever registered at all */ if (!media_devnode_is_registered(mdev->devnode)) { mutex_unlock(&mdev->graph_mutex); return; } /* Clear the devnode register bit to avoid races with media dev open */ media_devnode_unregister_prepare(mdev->devnode); /* Remove all entities from the media device */ list_for_each_entry_safe(entity, next, &mdev->entities, graph_obj.list) __media_device_unregister_entity(entity); /* Remove all entity_notify callbacks from the media device */ list_for_each_entry_safe(notify, nextp, &mdev->entity_notify, list) __media_device_unregister_entity_notify(mdev, notify); /* Remove all interfaces from the media device */ list_for_each_entry_safe(intf, tmp_intf, &mdev->interfaces, graph_obj.list) { /* * Unlink the interface, but don't free it here; the * module which created it is responsible for freeing * it */ __media_remove_intf_links(intf); media_gobj_destroy(&intf->graph_obj); } mutex_unlock(&mdev->graph_mutex); dev_dbg(mdev->dev, "Media device unregistered\n"); device_remove_file(&mdev->devnode->dev, &dev_attr_model); media_devnode_unregister(mdev->devnode); /* devnode free is handled in media_devnode_*() */ mdev->devnode = NULL; }

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PersonTokensPropCommitsCommitProp
mauro carvalho chehabmauro carvalho chehab12064.52%956.25%
shuah khanshuah khan4122.04%318.75%
laurent pinchartlaurent pinchart1910.22%16.25%
max kellermannmax kellermann52.69%212.50%
javier martinez canillasjavier martinez canillas10.54%16.25%
Total186100.00%16100.00%

EXPORT_SYMBOL_GPL(media_device_unregister); #if IS_ENABLED(CONFIG_PCI)
void media_device_pci_init(struct media_device *mdev, struct pci_dev *pci_dev, const char *name) { mdev->dev = &pci_dev->dev; if (name) strlcpy(mdev->model, name, sizeof(mdev->model)); else strlcpy(mdev->model, pci_name(pci_dev), sizeof(mdev->model)); sprintf(mdev->bus_info, "PCI:%s", pci_name(pci_dev)); mdev->hw_revision = (pci_dev->subsystem_vendor << 16) | pci_dev->subsystem_device; mdev->driver_version = LINUX_VERSION_CODE; media_device_init(mdev); }

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mauro carvalho chehabmauro carvalho chehab10494.55%777.78%
laurent pinchartlaurent pinchart54.55%111.11%
javier martinez canillasjavier martinez canillas10.91%111.11%
Total110100.00%9100.00%

EXPORT_SYMBOL_GPL(media_device_pci_init); #endif #if IS_ENABLED(CONFIG_USB)
void __media_device_usb_init(struct media_device *mdev, struct usb_device *udev, const char *board_name, const char *driver_name) { mdev->dev = &udev->dev; if (driver_name) strlcpy(mdev->driver_name, driver_name, sizeof(mdev->driver_name)); if (board_name) strlcpy(mdev->model, board_name, sizeof(mdev->model)); else if (udev->product) strlcpy(mdev->model, udev->product, sizeof(mdev->model)); else strlcpy(mdev->model, "unknown model", sizeof(mdev->model)); if (udev->serial) strlcpy(mdev->serial, udev->serial, sizeof(mdev->serial)); usb_make_path(udev, mdev->bus_info, sizeof(mdev->bus_info)); mdev->hw_revision = le16_to_cpu(udev->descriptor.bcdDevice); mdev->driver_version = LINUX_VERSION_CODE; media_device_init(mdev); }

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mauro carvalho chehabmauro carvalho chehab13575.00%266.67%
shuah khanshuah khan4525.00%133.33%
Total180100.00%3100.00%

EXPORT_SYMBOL_GPL(__media_device_usb_init); #endif #endif /* CONFIG_MEDIA_CONTROLLER */

Overall Contributors

PersonTokensPropCommitsCommitProp
mauro carvalho chehabmauro carvalho chehab164341.80%3150.00%
laurent pinchartlaurent pinchart102125.97%711.29%
sakari ailussakari ailus89722.82%1016.13%
shuah khanshuah khan2556.49%58.06%
javier martinez canillasjavier martinez canillas691.76%34.84%
dan carpenterdan carpenter240.61%11.61%
clemens ladischclemens ladisch130.33%11.61%
max kellermannmax kellermann50.13%23.23%
paul gortmakerpaul gortmaker20.05%11.61%
nicolas therynicolas thery20.05%11.61%
Total3931100.00%62100.00%
Directory: drivers/media
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