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Input: convert from class devices to standard devices 

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
This commit is contained in:
Dmitry Torokhov 2007-06-14 23:32:24 -04:00
parent d63219a101
commit 9657d75c5f
6 changed files with 354 additions and 318 deletions
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84
drivers/input/evdev.c
View File

@ -30,6 +30,7 @@ struct evdev {
wait_queue_head_t wait;
struct evdev_client *grab;
struct list_head client_list;
struct device dev;
};
struct evdev_client {
@ -94,8 +95,10 @@ static int evdev_flush(struct file *file, fl_owner_t id)
return input_flush_device(&evdev->handle, file);
}
static void evdev_free(struct evdev *evdev)
static void evdev_free(struct device *dev)
{
struct evdev *evdev = container_of(dev, struct evdev, dev);
evdev_table[evdev->minor] = NULL;
kfree(evdev);
}
@ -114,12 +117,10 @@ static int evdev_release(struct inode *inode, struct file *file)
list_del(&client->node);
kfree(client);
if (!--evdev->open) {
if (evdev->exist)
input_close_device(&evdev->handle);
else
evdev_free(evdev);
}
if (!--evdev->open && evdev->exist)
input_close_device(&evdev->handle);
put_device(&evdev->dev);
return 0;
}
@ -139,24 +140,32 @@ static int evdev_open(struct inode *inode, struct file *file)
if (!evdev || !evdev->exist)
return -ENODEV;
get_device(&evdev->dev);
client = kzalloc(sizeof(struct evdev_client), GFP_KERNEL);
if (!client)
return -ENOMEM;
if (!client) {
error = -ENOMEM;
goto err_put_evdev;
}
client->evdev = evdev;
list_add_tail(&client->node, &evdev->client_list);
if (!evdev->open++ && evdev->exist) {
error = input_open_device(&evdev->handle);
if (error) {
list_del(&client->node);
kfree(client);
return error;
}
if (error)
goto err_free_client;
}
file->private_data = client;
return 0;
err_free_client:
list_del(&client->node);
kfree(client);
err_put_evdev:
put_device(&evdev->dev);
return error;
}
#ifdef CONFIG_COMPAT
@ -625,8 +634,6 @@ static int evdev_connect(struct input_handler *handler, struct input_dev *dev,
const struct input_device_id *id)
{
struct evdev *evdev;
struct class_device *cdev;
dev_t devt;
int minor;
int error;
@ -649,38 +656,32 @@ static int evdev_connect(struct input_handler *handler, struct input_dev *dev,
evdev->handle.name = evdev->name;
evdev->handle.handler = handler;
evdev->handle.private = evdev;
sprintf(evdev->name, "event%d", minor);
snprintf(evdev->name, sizeof(evdev->name), "event%d", minor);
snprintf(evdev->dev.bus_id, sizeof(evdev->dev.bus_id),
"event%d", minor);
evdev->dev.class = &input_class;
evdev->dev.parent = &dev->dev;
evdev->dev.devt = MKDEV(INPUT_MAJOR, EVDEV_MINOR_BASE + minor);
evdev->dev.release = evdev_free;
device_initialize(&evdev->dev);
evdev_table[minor] = evdev;
devt = MKDEV(INPUT_MAJOR, EVDEV_MINOR_BASE + minor),
cdev = class_device_create(&input_class, &dev->cdev, devt,
dev->cdev.dev, evdev->name);
if (IS_ERR(cdev)) {
error = PTR_ERR(cdev);
goto err_free_evdev;
}
/* temporary symlink to keep userspace happy */
error = sysfs_create_link(&input_class.subsys.kobj,
&cdev->kobj, evdev->name);
error = device_add(&evdev->dev);
if (error)
goto err_cdev_destroy;
goto err_free_evdev;
error = input_register_handle(&evdev->handle);
if (error)
goto err_remove_link;
goto err_delete_evdev;
return 0;
err_remove_link:
sysfs_remove_link(&input_class.subsys.kobj, evdev->name);
err_cdev_destroy:
class_device_destroy(&input_class, devt);
err_delete_evdev:
device_del(&evdev->dev);
err_free_evdev:
kfree(evdev);
evdev_table[minor] = NULL;
put_device(&evdev->dev);
return error;
}
@ -690,10 +691,8 @@ static void evdev_disconnect(struct input_handle *handle)
struct evdev_client *client;
input_unregister_handle(handle);
device_del(&evdev->dev);
sysfs_remove_link(&input_class.subsys.kobj, evdev->name);
class_device_destroy(&input_class,
MKDEV(INPUT_MAJOR, EVDEV_MINOR_BASE + evdev->minor));
evdev->exist = 0;
if (evdev->open) {
@ -702,8 +701,9 @@ static void evdev_disconnect(struct input_handle *handle)
list_for_each_entry(client, &evdev->client_list, node)
kill_fasync(&client->fasync, SIGIO, POLL_HUP);
wake_up_interruptible(&evdev->wait);
} else
evdev_free(evdev);
}
put_device(&evdev->dev);
}
static const struct input_device_id evdev_ids[] = {

136
drivers/input/input.c
View File

@ -442,7 +442,7 @@ static int input_attach_handler(struct input_dev *dev, struct input_handler *han
printk(KERN_ERR
"input: failed to attach handler %s to device %s, "
"error: %d\n",
handler->name, kobject_name(&dev->cdev.kobj), error);
handler->name, kobject_name(&dev->dev.kobj), error);
return error;
}
@ -527,7 +527,7 @@ static void input_seq_print_bitmap(struct seq_file *seq, const char *name,
static int input_devices_seq_show(struct seq_file *seq, void *v)
{
struct input_dev *dev = container_of(v, struct input_dev, node);
const char *path = kobject_get_path(&dev->cdev.kobj, GFP_KERNEL);
const char *path = kobject_get_path(&dev->dev.kobj, GFP_KERNEL);
struct input_handle *handle;
seq_printf(seq, "I: Bus=%04x Vendor=%04x Product=%04x Version=%04x\n",
@ -682,15 +682,17 @@ static inline int input_proc_init(void) { return 0; }
static inline void input_proc_exit(void) { }
#endif
#define INPUT_DEV_STRING_ATTR_SHOW(name) \
static ssize_t input_dev_show_##name(struct class_device *dev, char *buf) \
{ \
struct input_dev *input_dev = to_input_dev(dev); \
\
return scnprintf(buf, PAGE_SIZE, "%s\n", \
input_dev->name ? input_dev->name : ""); \
} \
static CLASS_DEVICE_ATTR(name, S_IRUGO, input_dev_show_##name, NULL);
#define INPUT_DEV_STRING_ATTR_SHOW(name) \
static ssize_t input_dev_show_##name(struct device *dev, \
struct device_attribute *attr, \
char *buf) \
{ \
struct input_dev *input_dev = to_input_dev(dev); \
\
return scnprintf(buf, PAGE_SIZE, "%s\n", \
input_dev->name ? input_dev->name : ""); \
} \
static DEVICE_ATTR(name, S_IRUGO, input_dev_show_##name, NULL)
INPUT_DEV_STRING_ATTR_SHOW(name);
INPUT_DEV_STRING_ATTR_SHOW(phys);
@ -744,7 +746,9 @@ static int input_print_modalias(char *buf, int size, struct input_dev *id,
return len;
}
static ssize_t input_dev_show_modalias(struct class_device *dev, char *buf)
static ssize_t input_dev_show_modalias(struct device *dev,
struct device_attribute *attr,
char *buf)
{
struct input_dev *id = to_input_dev(dev);
ssize_t len;
@ -753,13 +757,13 @@ static ssize_t input_dev_show_modalias(struct class_device *dev, char *buf)
return min_t(int, len, PAGE_SIZE);
}
static CLASS_DEVICE_ATTR(modalias, S_IRUGO, input_dev_show_modalias, NULL);
static DEVICE_ATTR(modalias, S_IRUGO, input_dev_show_modalias, NULL);
static struct attribute *input_dev_attrs[] = {
&class_device_attr_name.attr,
&class_device_attr_phys.attr,
&class_device_attr_uniq.attr,
&class_device_attr_modalias.attr,
&dev_attr_name.attr,
&dev_attr_phys.attr,
&dev_attr_uniq.attr,
&dev_attr_modalias.attr,
NULL
};
@ -767,13 +771,15 @@ static struct attribute_group input_dev_attr_group = {
.attrs = input_dev_attrs,
};
#define INPUT_DEV_ID_ATTR(name) \
static ssize_t input_dev_show_id_##name(struct class_device *dev, char *buf) \
{ \
struct input_dev *input_dev = to_input_dev(dev); \
return scnprintf(buf, PAGE_SIZE, "%04x\n", input_dev->id.name); \
} \
static CLASS_DEVICE_ATTR(name, S_IRUGO, input_dev_show_id_##name, NULL);
#define INPUT_DEV_ID_ATTR(name) \
static ssize_t input_dev_show_id_##name(struct device *dev, \
struct device_attribute *attr, \
char *buf) \
{ \
struct input_dev *input_dev = to_input_dev(dev); \
return scnprintf(buf, PAGE_SIZE, "%04x\n", input_dev->id.name); \
} \
static DEVICE_ATTR(name, S_IRUGO, input_dev_show_id_##name, NULL)
INPUT_DEV_ID_ATTR(bustype);
INPUT_DEV_ID_ATTR(vendor);
@ -781,10 +787,10 @@ INPUT_DEV_ID_ATTR(product);
INPUT_DEV_ID_ATTR(version);
static struct attribute *input_dev_id_attrs[] = {
&class_device_attr_bustype.attr,
&class_device_attr_vendor.attr,
&class_device_attr_product.attr,
&class_device_attr_version.attr,
&dev_attr_bustype.attr,
&dev_attr_vendor.attr,
&dev_attr_product.attr,
&dev_attr_version.attr,
NULL
};
@ -813,15 +819,17 @@ static int input_print_bitmap(char *buf, int buf_size, unsigned long *bitmap,
return len;
}
#define INPUT_DEV_CAP_ATTR(ev, bm) \
static ssize_t input_dev_show_cap_##bm(struct class_device *dev, char *buf) \
{ \
struct input_dev *input_dev = to_input_dev(dev); \
int len = input_print_bitmap(buf, PAGE_SIZE, \
input_dev->bm##bit, ev##_MAX, 1); \
return min_t(int, len, PAGE_SIZE); \
} \
static CLASS_DEVICE_ATTR(bm, S_IRUGO, input_dev_show_cap_##bm, NULL);
#define INPUT_DEV_CAP_ATTR(ev, bm) \
static ssize_t input_dev_show_cap_##bm(struct device *dev, \
struct device_attribute *attr, \
char *buf) \
{ \
struct input_dev *input_dev = to_input_dev(dev); \
int len = input_print_bitmap(buf, PAGE_SIZE, \
input_dev->bm##bit, ev##_MAX, 1); \
return min_t(int, len, PAGE_SIZE); \
} \
static DEVICE_ATTR(bm, S_IRUGO, input_dev_show_cap_##bm, NULL)
INPUT_DEV_CAP_ATTR(EV, ev);
INPUT_DEV_CAP_ATTR(KEY, key);
@ -834,15 +842,15 @@ INPUT_DEV_CAP_ATTR(FF, ff);
INPUT_DEV_CAP_ATTR(SW, sw);
static struct attribute *input_dev_caps_attrs[] = {
&class_device_attr_ev.attr,
&class_device_attr_key.attr,
&class_device_attr_rel.attr,
&class_device_attr_abs.attr,
&class_device_attr_msc.attr,
&class_device_attr_led.attr,
&class_device_attr_snd.attr,
&class_device_attr_ff.attr,
&class_device_attr_sw.attr,
&dev_attr_ev.attr,
&dev_attr_key.attr,
&dev_attr_rel.attr,
&dev_attr_abs.attr,
&dev_attr_msc.attr,
&dev_attr_led.attr,
&dev_attr_snd.attr,
&dev_attr_ff.attr,
&dev_attr_sw.attr,
NULL
};
@ -858,9 +866,9 @@ static struct attribute_group *input_dev_attr_groups[] = {
NULL
};
static void input_dev_release(struct class_device *class_dev)
static void input_dev_release(struct device *device)
{
struct input_dev *dev = to_input_dev(class_dev);
struct input_dev *dev = to_input_dev(device);
input_ff_destroy(dev);
kfree(dev);
@ -947,10 +955,10 @@ static int input_add_uevent_modalias_var(char **envp, int num_envp, int *cur_ind
return err; \
} while (0)
static int input_dev_uevent(struct class_device *cdev, char **envp,
static int input_dev_uevent(struct device *device, char **envp,
int num_envp, char *buffer, int buffer_size)
{
struct input_dev *dev = to_input_dev(cdev);
struct input_dev *dev = to_input_dev(device);
int i = 0;
int len = 0;
@ -988,10 +996,14 @@ static int input_dev_uevent(struct class_device *cdev, char **envp,
return 0;
}
static struct device_type input_dev_type = {
.groups = input_dev_attr_groups,
.release = input_dev_release,
.uevent = input_dev_uevent,
};
struct class input_class = {
.name = "input",
.release = input_dev_release,
.uevent = input_dev_uevent,
.name = "input",
};
EXPORT_SYMBOL_GPL(input_class);
@ -1010,9 +1022,9 @@ struct input_dev *input_allocate_device(void)
dev = kzalloc(sizeof(struct input_dev), GFP_KERNEL);
if (dev) {
dev->cdev.class = &input_class;
dev->cdev.groups = input_dev_attr_groups;
class_device_initialize(&dev->cdev);
dev->dev.type = &input_dev_type;
dev->dev.class = &input_class;
device_initialize(&dev->dev);
mutex_init(&dev->mutex);
INIT_LIST_HEAD(&dev->h_list);
INIT_LIST_HEAD(&dev->node);
@ -1131,17 +1143,17 @@ int input_register_device(struct input_dev *dev)
list_add_tail(&dev->node, &input_dev_list);
snprintf(dev->cdev.class_id, sizeof(dev->cdev.class_id),
snprintf(dev->dev.bus_id, sizeof(dev->dev.bus_id),
"input%ld", (unsigned long) atomic_inc_return(&input_no) - 1);
if (!dev->cdev.dev)
dev->cdev.dev = dev->dev.parent;
if (dev->cdev.dev)
dev->dev.parent = dev->cdev.dev;
error = class_device_add(&dev->cdev);
error = device_add(&dev->dev);
if (error)
return error;
path = kobject_get_path(&dev->cdev.kobj, GFP_KERNEL);
path = kobject_get_path(&dev->dev.kobj, GFP_KERNEL);
printk(KERN_INFO "input: %s as %s\n",
dev->name ? dev->name : "Unspecified device", path ? path : "N/A");
kfree(path);
@ -1173,7 +1185,7 @@ void input_unregister_device(struct input_dev *dev)
list_del_init(&dev->node);
class_device_unregister(&dev->cdev);
device_unregister(&dev->dev);
input_wakeup_procfs_readers();
}

84
drivers/input/joydev.c
View File

@ -43,6 +43,8 @@ struct joydev {
struct input_handle handle;
wait_queue_head_t wait;
struct list_head client_list;
struct device dev;
struct js_corr corr[ABS_MAX + 1];
struct JS_DATA_SAVE_TYPE glue;
int nabs;
@ -138,8 +140,10 @@ static int joydev_fasync(int fd, struct file *file, int on)
return retval < 0 ? retval : 0;
}
static void joydev_free(struct joydev *joydev)
static void joydev_free(struct device *dev)
{
struct joydev *joydev = container_of(dev, struct joydev, dev);
joydev_table[joydev->minor] = NULL;
kfree(joydev);
}
@ -154,12 +158,10 @@ static int joydev_release(struct inode *inode, struct file *file)
list_del(&client->node);
kfree(client);
if (!--joydev->open) {
if (joydev->exist)
input_close_device(&joydev->handle);
else
joydev_free(joydev);
}
if (!--joydev->open && joydev->exist)
input_close_device(&joydev->handle);
put_device(&joydev->dev);
return 0;
}
@ -178,24 +180,32 @@ static int joydev_open(struct inode *inode, struct file *file)
if (!joydev || !joydev->exist)
return -ENODEV;
get_device(&joydev->dev);
client = kzalloc(sizeof(struct joydev_client), GFP_KERNEL);
if (!client)
return -ENOMEM;
if (!client) {
error = -ENOMEM;
goto err_put_joydev;
}
client->joydev = joydev;
list_add_tail(&client->node, &joydev->client_list);
if (!joydev->open++ && joydev->exist) {
error = input_open_device(&joydev->handle);
if (error) {
list_del(&client->node);
kfree(client);
return error;
}
if (error)
goto err_free_client;
}
file->private_data = client;
return 0;
err_free_client:
list_del(&client->node);
kfree(client);
err_put_joydev:
put_device(&joydev->dev);
return error;
}
static ssize_t joydev_write(struct file *file, const char __user *buffer, size_t count, loff_t *ppos)
@ -481,8 +491,6 @@ static int joydev_connect(struct input_handler *handler, struct input_dev *dev,
const struct input_device_id *id)
{
struct joydev *joydev;
struct class_device *cdev;
dev_t devt;
int i, j, t, minor;
int error;
@ -505,7 +513,7 @@ static int joydev_connect(struct input_handler *handler, struct input_dev *dev,
joydev->handle.name = joydev->name;
joydev->handle.handler = handler;
joydev->handle.private = joydev;
sprintf(joydev->name, "js%d", minor);
snprintf(joydev->name, sizeof(joydev->name), "js%d", minor);
for (i = 0; i < ABS_MAX + 1; i++)
if (test_bit(i, dev->absbit)) {
@ -547,36 +555,30 @@ static int joydev_connect(struct input_handler *handler, struct input_dev *dev,
joydev->abs[i] = joydev_correct(dev->abs[j], joydev->corr + i);
}
snprintf(joydev->dev.bus_id, sizeof(joydev->dev.bus_id),
"js%d", minor);
joydev->dev.class = &input_class;
joydev->dev.parent = &dev->dev;
joydev->dev.devt = MKDEV(INPUT_MAJOR, JOYDEV_MINOR_BASE + minor);
joydev->dev.release = joydev_free;
device_initialize(&joydev->dev);
joydev_table[minor] = joydev;
devt = MKDEV(INPUT_MAJOR, JOYDEV_MINOR_BASE + minor),
cdev = class_device_create(&input_class, &dev->cdev, devt,
dev->cdev.dev, joydev->name);
if (IS_ERR(cdev)) {
error = PTR_ERR(cdev);
goto err_free_joydev;
}
/* temporary symlink to keep userspace happy */
error = sysfs_create_link(&input_class.subsys.kobj,
&cdev->kobj, joydev->name);
error = device_add(&joydev->dev);
if (error)
goto err_cdev_destroy;
goto err_free_joydev;
error = input_register_handle(&joydev->handle);
if (error)
goto err_remove_link;
goto err_delete_joydev;
return 0;
err_remove_link:
sysfs_remove_link(&input_class.subsys.kobj, joydev->name);
err_cdev_destroy:
class_device_destroy(&input_class, devt);
err_delete_joydev:
device_del(&joydev->dev);
err_free_joydev:
joydev_table[minor] = NULL;
kfree(joydev);
put_device(&joydev->dev);
return error;
}
@ -587,9 +589,8 @@ static void joydev_disconnect(struct input_handle *handle)
struct joydev_client *client;
input_unregister_handle(handle);
device_del(&joydev->dev);
sysfs_remove_link(&input_class.subsys.kobj, joydev->name);
class_device_destroy(&input_class, MKDEV(INPUT_MAJOR, JOYDEV_MINOR_BASE + joydev->minor));
joydev->exist = 0;
if (joydev->open) {
@ -597,8 +598,9 @@ static void joydev_disconnect(struct input_handle *handle)
list_for_each_entry(client, &joydev->client_list, node)
kill_fasync(&client->fasync, SIGIO, POLL_HUP);
wake_up_interruptible(&joydev->wait);
} else
joydev_free(joydev);
}
put_device(&joydev->dev);
}
static const struct input_device_id joydev_blacklist[] = {

260
drivers/input/mousedev.c
View File

@ -64,6 +64,7 @@ struct mousedev {
wait_queue_head_t wait;
struct list_head client_list;
struct input_handle handle;
struct device dev;
struct list_head mixdev_node;
int mixdev_open;
@ -112,7 +113,7 @@ static unsigned char mousedev_imex_seq[] = { 0xf3, 200, 0xf3, 200, 0xf3, 80 };
static struct input_handler mousedev_handler;
static struct mousedev *mousedev_table[MOUSEDEV_MINORS];
static struct mousedev mousedev_mix;
static struct mousedev *mousedev_mix;
static LIST_HEAD(mousedev_mix_list);
#define fx(i) (mousedev->old_x[(mousedev->pkt_count - (i)) & 03])
@ -218,10 +219,10 @@ static void mousedev_key_event(struct mousedev *mousedev, unsigned int code, int
if (value) {
set_bit(index, &mousedev->packet.buttons);
set_bit(index, &mousedev_mix.packet.buttons);
set_bit(index, &mousedev_mix->packet.buttons);
} else {
clear_bit(index, &mousedev->packet.buttons);
clear_bit(index, &mousedev_mix.packet.buttons);
clear_bit(index, &mousedev_mix->packet.buttons);
}
}
@ -287,11 +288,11 @@ static void mousedev_touchpad_touch(struct mousedev *mousedev, int value)
* motion packet so we won't mess current position.
*/
set_bit(0, &mousedev->packet.buttons);
set_bit(0, &mousedev_mix.packet.buttons);
mousedev_notify_readers(mousedev, &mousedev_mix.packet);
mousedev_notify_readers(&mousedev_mix, &mousedev_mix.packet);
set_bit(0, &mousedev_mix->packet.buttons);
mousedev_notify_readers(mousedev, &mousedev_mix->packet);
mousedev_notify_readers(mousedev_mix, &mousedev_mix->packet);
clear_bit(0, &mousedev->packet.buttons);
clear_bit(0, &mousedev_mix.packet.buttons);
clear_bit(0, &mousedev_mix->packet.buttons);
}
mousedev->touch = mousedev->pkt_count = 0;
mousedev->frac_dx = 0;
@ -343,7 +344,7 @@ static void mousedev_event(struct input_handle *handle, unsigned int type, unsig
}
mousedev_notify_readers(mousedev, &mousedev->packet);
mousedev_notify_readers(&mousedev_mix, &mousedev->packet);
mousedev_notify_readers(mousedev_mix, &mousedev->packet);
mousedev->packet.dx = mousedev->packet.dy = mousedev->packet.dz = 0;
mousedev->packet.abs_event = 0;
@ -362,8 +363,10 @@ static int mousedev_fasync(int fd, struct file *file, int on)
return retval < 0 ? retval : 0;
}
static void mousedev_free(struct mousedev *mousedev)
static void mousedev_free(struct device *dev)
{
struct mousedev *mousedev = container_of(dev, struct mousedev, dev);
mousedev_table[mousedev->minor] = NULL;
kfree(mousedev);
}
@ -372,15 +375,16 @@ static int mixdev_add_device(struct mousedev *mousedev)
{
int error;
if (mousedev_mix.open) {
if (mousedev_mix->open) {
error = input_open_device(&mousedev->handle);
if (error)
return error;
mousedev->open++;
mousedev->mixdev_open++;
mousedev->mixdev_open = 1;
}
get_device(&mousedev->dev);
list_add_tail(&mousedev->mixdev_node, &mousedev_mix_list);
return 0;
@ -395,36 +399,40 @@ static void mixdev_remove_device(struct mousedev *mousedev)
}
list_del_init(&mousedev->mixdev_node);
put_device(&mousedev->dev);
}
static void mixdev_open_devices(void)
{
struct mousedev *mousedev;
if (mousedev_mix->open++)
return;
list_for_each_entry(mousedev, &mousedev_mix_list, mixdev_node) {
if (mousedev->exist && !mousedev->open) {
if (input_open_device(&mousedev->handle))
continue;
if (!mousedev->mixdev_open) {
if (!mousedev->open && mousedev->exist)
if (input_open_device(&mousedev->handle))
continue;
mousedev->open++;
mousedev->mixdev_open++;
mousedev->mixdev_open = 1;
}
}
}
static void mixdev_close_devices(void)
{
struct mousedev *mousedev, *next;
struct mousedev *mousedev;
list_for_each_entry_safe(mousedev, next, &mousedev_mix_list, mixdev_node) {
if (--mousedev_mix->open)
return;
list_for_each_entry(mousedev, &mousedev_mix_list, mixdev_node) {
if (mousedev->mixdev_open) {
mousedev->mixdev_open = 0;
if (!--mousedev->open) {
if (mousedev->exist)
input_close_device(&mousedev->handle);
else
mousedev_free(mousedev);
}
if (!--mousedev->open && mousedev->exist)
input_close_device(&mousedev->handle);
}
}
}
@ -439,14 +447,12 @@ static int mousedev_release(struct inode *inode, struct file *file)
list_del(&client->node);
kfree(client);
if (!--mousedev->open) {
if (mousedev->minor == MOUSEDEV_MIX)
mixdev_close_devices();
else if (mousedev->exist)
input_close_device(&mousedev->handle);
else
mousedev_free(mousedev);
}
if (mousedev->minor == MOUSEDEV_MIX)
mixdev_close_devices();
else if (!--mousedev->open && mousedev->exist)
input_close_device(&mousedev->handle);
put_device(&mousedev->dev);
return 0;
}
@ -473,9 +479,13 @@ static int mousedev_open(struct inode *inode, struct file *file)
if (!mousedev)
return -ENODEV;
get_device(&mousedev->dev);
client = kzalloc(sizeof(struct mousedev_client), GFP_KERNEL);
if (!client)
return -ENOMEM;
if (!client) {
error = -ENOMEM;
goto err_put_mousedev;
}
spin_lock_init(&client->packet_lock);
client->pos_x = xres / 2;
@ -483,21 +493,23 @@ static int mousedev_open(struct inode *inode, struct file *file)
client->mousedev = mousedev;
list_add_tail(&client->node, &mousedev->client_list);
if (!mousedev->open++) {
if (mousedev->minor == MOUSEDEV_MIX)
mixdev_open_devices();
else if (mousedev->exist) {
error = input_open_device(&mousedev->handle);
if (error) {
list_del(&client->node);
kfree(client);
return error;
}
}
if (mousedev->minor == MOUSEDEV_MIX)
mixdev_open_devices();
else if (!mousedev->open++ && mousedev->exist) {
error = input_open_device(&mousedev->handle);
if (error)
goto err_free_client;
}
file->private_data = client;
return 0;
err_free_client:
list_del(&client->node);
kfree(client);
err_put_mousedev:
put_device(&mousedev->dev);
return error;
}
static inline int mousedev_limit_delta(int delta, int limit)
@ -680,12 +692,80 @@ static const struct file_operations mousedev_fops = {
.fasync = mousedev_fasync,
};
static struct mousedev *mousedev_create(struct input_dev *dev,
struct input_handler *handler,
int minor)
{
struct mousedev *mousedev;
int error;
mousedev = kzalloc(sizeof(struct mousedev), GFP_KERNEL);
if (!mousedev) {
error = -ENOMEM;
goto err_out;
}
INIT_LIST_HEAD(&mousedev->client_list);
INIT_LIST_HEAD(&mousedev->mixdev_node);
init_waitqueue_head(&mousedev->wait);
if (minor == MOUSEDEV_MIX)
strlcpy(mousedev->name, "mice", sizeof(mousedev->name));
else
snprintf(mousedev->name, sizeof(mousedev->name),
"mouse%d", minor);
mousedev->minor = minor;
mousedev->exist = 1;
mousedev->handle.dev = dev;
mousedev->handle.name = mousedev->name;
mousedev->handle.handler = handler;
mousedev->handle.private = mousedev;
strlcpy(mousedev->dev.bus_id, mousedev->name,
sizeof(mousedev->dev.bus_id));
mousedev->dev.class = &input_class;
if (dev)
mousedev->dev.parent = &dev->dev;
mousedev->dev.devt = MKDEV(INPUT_MAJOR, MOUSEDEV_MINOR_BASE + minor);
mousedev->dev.release = mousedev_free;
device_initialize(&mousedev->dev);
mousedev_table[minor] = mousedev;
error = device_add(&mousedev->dev);
if (error)
goto err_free_mousedev;
return mousedev;
err_free_mousedev:
put_device(&mousedev->dev);
err_out:
return ERR_PTR(error);
}
static void mousedev_destroy(struct mousedev *mousedev)
{
struct mousedev_client *client;
device_del(&mousedev->dev);
mousedev->exist = 0;
if (mousedev->open) {
input_close_device(&mousedev->handle);
list_for_each_entry(client, &mousedev->client_list, node)
kill_fasync(&client->fasync, SIGIO, POLL_HUP);
wake_up_interruptible(&mousedev->wait);
}
put_device(&mousedev->dev);
}
static int mousedev_connect(struct input_handler *handler, struct input_dev *dev,
const struct input_device_id *id)
{
struct mousedev *mousedev;
struct class_device *cdev;
dev_t devt;
int minor;
int error;
@ -695,42 +775,13 @@ static int mousedev_connect(struct input_handler *handler, struct input_dev *dev
return -ENFILE;
}
mousedev = kzalloc(sizeof(struct mousedev), GFP_KERNEL);
if (!mousedev)
return -ENOMEM;
INIT_LIST_HEAD(&mousedev->client_list);
INIT_LIST_HEAD(&mousedev->mixdev_node);
init_waitqueue_head(&mousedev->wait);
mousedev->minor = minor;
mousedev->exist = 1;
mousedev->handle.dev = dev;
mousedev->handle.name = mousedev->name;
mousedev->handle.handler = handler;
mousedev->handle.private = mousedev;
sprintf(mousedev->name, "mouse%d", minor);
mousedev_table[minor] = mousedev;
devt = MKDEV(INPUT_MAJOR, MOUSEDEV_MINOR_BASE + minor),
cdev = class_device_create(&input_class, &dev->cdev, devt,
dev->cdev.dev, mousedev->name);
if (IS_ERR(cdev)) {
error = PTR_ERR(cdev);
goto err_free_mousedev;
}
/* temporary symlink to keep userspace happy */
error = sysfs_create_link(&input_class.subsys.kobj,
&cdev->kobj, mousedev->name);
if (error)
goto err_cdev_destroy;
mousedev = mousedev_create(dev, handler, minor);
if (IS_ERR(mousedev))
return PTR_ERR(mousedev);
error = input_register_handle(&mousedev->handle);
if (error)
goto err_remove_link;
goto err_delete_mousedev;
error = mixdev_add_device(mousedev);
if (error)
@ -740,37 +791,18 @@ static int mousedev_connect(struct input_handler *handler, struct input_dev *dev
err_unregister_handle:
input_unregister_handle(&mousedev->handle);
err_remove_link:
sysfs_remove_link(&input_class.subsys.kobj, mousedev->name);
err_cdev_destroy:
class_device_destroy(&input_class, devt);
err_free_mousedev:
mousedev_table[minor] = NULL;
kfree(mousedev);
err_delete_mousedev:
device_unregister(&mousedev->dev);
return error;
}
static void mousedev_disconnect(struct input_handle *handle)
{
struct mousedev *mousedev = handle->private;
struct mousedev_client *client;
input_unregister_handle(handle);
sysfs_remove_link(&input_class.subsys.kobj, mousedev->name);
class_device_destroy(&input_class,
MKDEV(INPUT_MAJOR, MOUSEDEV_MINOR_BASE + mousedev->minor));
mousedev->exist = 0;
mixdev_remove_device(mousedev);
if (mousedev->open) {
input_close_device(handle);
list_for_each_entry(client, &mousedev->client_list, node)
kill_fasync(&client->fasync, SIGIO, POLL_HUP);
wake_up_interruptible(&mousedev->wait);
} else
mousedev_free(mousedev);
input_unregister_handle(handle);
mousedev_destroy(mousedev);
}
static const struct input_device_id mousedev_ids[] = {
@ -822,25 +854,16 @@ static int psaux_registered;
static int __init mousedev_init(void)
{
struct class_device *cdev;
int error;
mousedev_mix = mousedev_create(NULL, &mousedev_handler, MOUSEDEV_MIX);
if (IS_ERR(mousedev_mix))
return PTR_ERR(mousedev_mix);
error = input_register_handler(&mousedev_handler);
if (error)
if (error) {
mousedev_destroy(mousedev_mix);
return error;
memset(&mousedev_mix, 0, sizeof(struct mousedev));
INIT_LIST_HEAD(&mousedev_mix.client_list);
init_waitqueue_head(&mousedev_mix.wait);
mousedev_table[MOUSEDEV_MIX] = &mousedev_mix;
mousedev_mix.exist = 1;
mousedev_mix.minor = MOUSEDEV_MIX;
cdev = class_device_create(&input_class, NULL,
MKDEV(INPUT_MAJOR, MOUSEDEV_MINOR_BASE + MOUSEDEV_MIX), NULL, "mice");
if (IS_ERR(cdev)) {
input_unregister_handler(&mousedev_handler);
return PTR_ERR(cdev);
}
#ifdef CONFIG_INPUT_MOUSEDEV_PSAUX
@ -863,9 +886,8 @@ static void __exit mousedev_exit(void)
if (psaux_registered)
misc_deregister(&psaux_mouse);
#endif
class_device_destroy(&input_class,
MKDEV(INPUT_MAJOR, MOUSEDEV_MINOR_BASE + MOUSEDEV_MIX));
input_unregister_handler(&mousedev_handler);
mousedev_destroy(mousedev_mix);
}
module_init(mousedev_init);

88
drivers/input/tsdev.c
View File

@ -109,9 +109,11 @@ struct tsdev {
int open;
int minor;
char name[8];
struct input_handle handle;
wait_queue_head_t wait;
struct list_head client_list;
struct input_handle handle;
struct device dev;
int x, y, pressure;
struct ts_calibration cal;
};
@ -163,9 +165,13 @@ static int tsdev_open(struct inode *inode, struct file *file)
if (!tsdev || !tsdev->exist)
return -ENODEV;
get_device(&tsdev->dev);
client = kzalloc(sizeof(struct tsdev_client), GFP_KERNEL);
if (!client)
return -ENOMEM;
if (!client) {
error = -ENOMEM;
goto err_put_tsdev;
}
client->tsdev = tsdev;
client->raw = (i >= TSDEV_MINORS / 2) ? 1 : 0;
@ -173,19 +179,25 @@ static int tsdev_open(struct inode *inode, struct file *file)
if (!tsdev->open++ && tsdev->exist) {
error = input_open_device(&tsdev->handle);
if (error) {
list_del(&client->node);
kfree(client);
return error;
}
if (error)
goto err_free_client;
}
file->private_data = client;
return 0;
err_free_client:
list_del(&client->node);
kfree(client);
err_put_tsdev:
put_device(&tsdev->dev);
return error;
}
static void tsdev_free(struct tsdev *tsdev)
static void tsdev_free(struct device *dev)
{
struct tsdev *tsdev = container_of(dev, struct tsdev, dev);
tsdev_table[tsdev->minor] = NULL;
kfree(tsdev);
}
@ -200,12 +212,10 @@ static int tsdev_release(struct inode *inode, struct file *file)
list_del(&client->node);
kfree(client);
if (!--tsdev->open) {
if (tsdev->exist)
input_close_device(&tsdev->handle);
else
tsdev_free(tsdev);
}
if (!--tsdev->open && tsdev->exist)
input_close_device(&tsdev->handle);
put_device(&tsdev->dev);
return 0;
}
@ -388,8 +398,6 @@ static int tsdev_connect(struct input_handler *handler, struct input_dev *dev,
const struct input_device_id *id)
{
struct tsdev *tsdev;
struct class_device *cdev;
dev_t devt;
int minor, delta;
int error;
@ -407,14 +415,13 @@ static int tsdev_connect(struct input_handler *handler, struct input_dev *dev,
INIT_LIST_HEAD(&tsdev->client_list);
init_waitqueue_head(&tsdev->wait);
sprintf(tsdev->name, "ts%d", minor);
tsdev->exist = 1;
tsdev->minor = minor;
tsdev->handle.dev = dev;
tsdev->handle.name = tsdev->name;
tsdev->handle.handler = handler;
tsdev->handle.private = tsdev;
snprintf(tsdev->name, sizeof(tsdev->name), "ts%d", minor);
/* Precompute the rough calibration matrix */
delta = dev->absmax [ABS_X] - dev->absmin [ABS_X] + 1;
@ -429,36 +436,30 @@ static int tsdev_connect(struct input_handler *handler, struct input_dev *dev,
tsdev->cal.yscale = (yres << 8) / delta;
tsdev->cal.ytrans = - ((dev->absmin [ABS_Y] * tsdev->cal.yscale) >> 8);
snprintf(tsdev->dev.bus_id, sizeof(tsdev->dev.bus_id),
"ts%d", minor);
tsdev->dev.class = &input_class;
tsdev->dev.parent = &dev->dev;
tsdev->dev.devt = MKDEV(INPUT_MAJOR, TSDEV_MINOR_BASE + minor);
tsdev->dev.release = tsdev_free;
device_initialize(&tsdev->dev);
tsdev_table[minor] = tsdev;
devt = MKDEV(INPUT_MAJOR, TSDEV_MINOR_BASE + minor),
cdev = class_device_create(&input_class, &dev->cdev, devt,
dev->cdev.dev, tsdev->name);
if (IS_ERR(cdev)) {
error = PTR_ERR(cdev);
goto err_free_tsdev;
}
/* temporary symlink to keep userspace happy */
error = sysfs_create_link(&input_class.subsys.kobj,
&cdev->kobj, tsdev->name);
error = device_add(&tsdev->dev);
if (error)
goto err_cdev_destroy;
goto err_free_tsdev;
error = input_register_handle(&tsdev->handle);
if (error)
goto err_remove_link;
goto err_delete_tsdev;
return 0;
err_remove_link:
sysfs_remove_link(&input_class.subsys.kobj, tsdev->name);
err_cdev_destroy:
class_device_destroy(&input_class, devt);
err_delete_tsdev:
device_del(&tsdev->dev);
err_free_tsdev:
tsdev_table[minor] = NULL;
kfree(tsdev);
put_device(&tsdev->dev);
return error;
}
@ -468,10 +469,8 @@ static void tsdev_disconnect(struct input_handle *handle)
struct tsdev_client *client;
input_unregister_handle(handle);
device_del(&tsdev->dev);
sysfs_remove_link(&input_class.subsys.kobj, tsdev->name);
class_device_destroy(&input_class,
MKDEV(INPUT_MAJOR, TSDEV_MINOR_BASE + tsdev->minor));
tsdev->exist = 0;
if (tsdev->open) {
@ -479,8 +478,9 @@ static void tsdev_disconnect(struct input_handle *handle)
list_for_each_entry(client, &tsdev->client_list, node)
kill_fasync(&client->fasync, SIGIO, POLL_HUP);
wake_up_interruptible(&tsdev->wait);
} else
tsdev_free(tsdev);
}
put_device(&tsdev->dev);
}
static const struct input_device_id tsdev_ids[] = {

20
include/linux/input.h
View File

@ -981,15 +981,15 @@ struct input_dev {
struct mutex mutex; /* serializes open and close operations */
unsigned int users;
struct class_device cdev;
struct device dev;
union { /* temporarily so while we switching to struct device */
struct device *parent;
} dev;
struct device *dev;
} cdev;
struct list_head h_list;
struct list_head node;
};
#define to_input_dev(d) container_of(d, struct input_dev, cdev)
#define to_input_dev(d) container_of(d, struct input_dev, dev)
/*
* Verify that we are in sync with input_device_id mod_devicetable.h #defines
@ -1096,22 +1096,22 @@ struct input_handle {
struct list_head h_node;
};
#define to_dev(n) container_of(n,struct input_dev,node)
#define to_handler(n) container_of(n,struct input_handler,node)
#define to_handle(n) container_of(n,struct input_handle,d_node)
#define to_handle_h(n) container_of(n,struct input_handle,h_node)
#define to_dev(n) container_of(n, struct input_dev, node)
#define to_handler(n) container_of(n, struct input_handler, node)
#define to_handle(n) container_of(n, struct input_handle, d_node)
#define to_handle_h(n) container_of(n, struct input_handle, h_node)
struct input_dev *input_allocate_device(void);
void input_free_device(struct input_dev *dev);
static inline struct input_dev *input_get_device(struct input_dev *dev)
{
return to_input_dev(class_device_get(&dev->cdev));
return to_input_dev(get_device(&dev->dev));
}
static inline void input_put_device(struct input_dev *dev)
{
class_device_put(&dev->cdev);
put_device(&dev->dev);
}
static inline void *input_get_drvdata(struct input_dev *dev)