cregit-Linux how code gets into the kernel

Release 4.11 drivers/staging/greybus/audio_manager_module.c

/*
 * Greybus operations
 *
 * Copyright 2015-2016 Google Inc.
 *
 * Released under the GPLv2 only.
 */

#include <linux/slab.h>

#include "audio_manager.h"
#include "audio_manager_private.h"


#define to_gb_audio_module_attr(x)	\
		container_of(x, struct gb_audio_manager_module_attribute, attr)

#define to_gb_audio_module(x)		\
		container_of(x, struct gb_audio_manager_module, kobj)


struct gb_audio_manager_module_attribute {
	
struct attribute attr;
	
ssize_t (*show)(struct gb_audio_manager_module *module,
			struct gb_audio_manager_module_attribute *attr,
			char *buf);
	
ssize_t (*store)(struct gb_audio_manager_module *module,
			 struct gb_audio_manager_module_attribute *attr,
			 const char *buf, size_t count);
};


static ssize_t gb_audio_module_attr_show( struct kobject *kobj, struct attribute *attr, char *buf) { struct gb_audio_manager_module_attribute *attribute; struct gb_audio_manager_module *module; attribute = to_gb_audio_module_attr(attr); module = to_gb_audio_module(kobj); if (!attribute->show) return -EIO; return attribute->show(module, attribute, buf); }

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Svetlin Ankov67100.00%1100.00%
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static ssize_t gb_audio_module_attr_store(struct kobject *kobj, struct attribute *attr, const char *buf, size_t len) { struct gb_audio_manager_module_attribute *attribute; struct gb_audio_manager_module *module; attribute = to_gb_audio_module_attr(attr); module = to_gb_audio_module(kobj); if (!attribute->store) return -EIO; return attribute->store(module, attribute, buf, len); }

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static const struct sysfs_ops gb_audio_module_sysfs_ops = { .show = gb_audio_module_attr_show, .store = gb_audio_module_attr_store, };
static void gb_audio_module_release(struct kobject *kobj) { struct gb_audio_manager_module *module = to_gb_audio_module(kobj); pr_info("Destroying audio module #%d\n", module->id); /* TODO -> delete from list */ kfree(module); }

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Svetlin Ankov36100.00%1100.00%
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static ssize_t gb_audio_module_name_show( struct gb_audio_manager_module *module, struct gb_audio_manager_module_attribute *attr, char *buf) { return sprintf(buf, "%s", module->desc.name); }

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Svetlin Ankov34100.00%1100.00%
Total34100.00%1100.00%

static struct gb_audio_manager_module_attribute gb_audio_module_name_attribute = __ATTR(name, 0664, gb_audio_module_name_show, NULL);
static ssize_t gb_audio_module_vid_show( struct gb_audio_manager_module *module, struct gb_audio_manager_module_attribute *attr, char *buf) { return sprintf(buf, "%d", module->desc.vid); }

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Svetlin Ankov34100.00%1100.00%
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static struct gb_audio_manager_module_attribute gb_audio_module_vid_attribute = __ATTR(vid, 0664, gb_audio_module_vid_show, NULL);
static ssize_t gb_audio_module_pid_show( struct gb_audio_manager_module *module, struct gb_audio_manager_module_attribute *attr, char *buf) { return sprintf(buf, "%d", module->desc.pid); }

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Svetlin Ankov34100.00%1100.00%
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static struct gb_audio_manager_module_attribute gb_audio_module_pid_attribute = __ATTR(pid, 0664, gb_audio_module_pid_show, NULL);
static ssize_t gb_audio_module_intf_id_show( struct gb_audio_manager_module *module, struct gb_audio_manager_module_attribute *attr, char *buf) { return sprintf(buf, "%d", module->desc.intf_id); }

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Svetlin Ankov3294.12%150.00%
Pankaj Bharadiya25.88%150.00%
Total34100.00%2100.00%

static struct gb_audio_manager_module_attribute gb_audio_module_intf_id_attribute = __ATTR(intf_id, 0664, gb_audio_module_intf_id_show, NULL);
static ssize_t gb_audio_module_ip_devices_show( struct gb_audio_manager_module *module, struct gb_audio_manager_module_attribute *attr, char *buf) { return sprintf(buf, "0x%X", module->desc.ip_devices); }

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Svetlin Ankov3294.12%150.00%
Vaibhav Agarwal25.88%150.00%
Total34100.00%2100.00%

static struct gb_audio_manager_module_attribute gb_audio_module_ip_devices_attribute = __ATTR(ip_devices, 0664, gb_audio_module_ip_devices_show, NULL);
static ssize_t gb_audio_module_op_devices_show( struct gb_audio_manager_module *module, struct gb_audio_manager_module_attribute *attr, char *buf) { return sprintf(buf, "0x%X", module->desc.op_devices); }

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Vaibhav Agarwal34100.00%1100.00%
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static struct gb_audio_manager_module_attribute gb_audio_module_op_devices_attribute = __ATTR(op_devices, 0664, gb_audio_module_op_devices_show, NULL); static struct attribute *gb_audio_module_default_attrs[] = { &gb_audio_module_name_attribute.attr, &gb_audio_module_vid_attribute.attr, &gb_audio_module_pid_attribute.attr, &gb_audio_module_intf_id_attribute.attr, &gb_audio_module_ip_devices_attribute.attr, &gb_audio_module_op_devices_attribute.attr, NULL, /* need to NULL terminate the list of attributes */ }; static struct kobj_type gb_audio_module_type = { .sysfs_ops = &gb_audio_module_sysfs_ops, .release = gb_audio_module_release, .default_attrs = gb_audio_module_default_attrs, };
static void send_add_uevent(struct gb_audio_manager_module *module) { char name_string[128]; char vid_string[64]; char pid_string[64]; char intf_id_string[64]; char ip_devices_string[64]; char op_devices_string[64]; char *envp[] = { name_string, vid_string, pid_string, intf_id_string, ip_devices_string, op_devices_string, NULL }; snprintf(name_string, 128, "NAME=%s", module->desc.name); snprintf(vid_string, 64, "VID=%d", module->desc.vid); snprintf(pid_string, 64, "PID=%d", module->desc.pid); snprintf(intf_id_string, 64, "INTF_ID=%d", module->desc.intf_id); snprintf(ip_devices_string, 64, "I/P DEVICES=0x%X", module->desc.ip_devices); snprintf(op_devices_string, 64, "O/P DEVICES=0x%X", module->desc.op_devices); kobject_uevent_env(&module->kobj, KOBJ_ADD, envp); }

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Svetlin Ankov13780.59%133.33%
Vaibhav Agarwal2816.47%133.33%
Pankaj Bharadiya52.94%133.33%
Total170100.00%3100.00%


int gb_audio_manager_module_create( struct gb_audio_manager_module **module, struct kset *manager_kset, int id, struct gb_audio_manager_module_descriptor *desc) { int err; struct gb_audio_manager_module *m; m = kzalloc(sizeof(*m), GFP_ATOMIC); if (!m) return -ENOMEM; /* Initialize the node */ INIT_LIST_HEAD(&m->list); /* Set the module id */ m->id = id; /* Copy the provided descriptor */ memcpy(&m->desc, desc, sizeof(*desc)); /* set the kset */ m->kobj.kset = manager_kset; /* * Initialize and add the kobject to the kernel. All the default files * will be created here. As we have already specified a kset for this * kobject, we don't have to set a parent for the kobject, the kobject * will be placed beneath that kset automatically. */ err = kobject_init_and_add(&m->kobj, &gb_audio_module_type, NULL, "%d", id); if (err) { pr_err("failed initializing kobject for audio module #%d\n", id); kobject_put(&m->kobj); return err; } /* * Notify the object was created */ send_add_uevent(m); *module = m; pr_info("Created audio module #%d\n", id); return 0; }

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Svetlin Ankov161100.00%1100.00%
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void gb_audio_manager_module_dump(struct gb_audio_manager_module *module) { pr_info("audio module #%d name=%s vid=%d pid=%d intf_id=%d i/p devices=0x%X o/p devices=0x%X\n", module->id, module->desc.name, module->desc.vid, module->desc.pid, module->desc.intf_id, module->desc.ip_devices, module->desc.op_devices); }

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Svetlin Ankov4683.64%125.00%
Vaibhav Agarwal712.73%125.00%
Pankaj Bharadiya23.64%250.00%
Total55100.00%4100.00%


Overall Contributors

PersonTokensPropCommitsCommitProp
Svetlin Ankov91889.39%125.00%
Vaibhav Agarwal969.35%125.00%
Pankaj Bharadiya131.27%250.00%
Total1027100.00%4100.00%
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