diff options
| -rw-r--r-- | drivers/input/evdev.c | 84 | ||||
| -rw-r--r-- | drivers/input/input.c | 136 | ||||
| -rw-r--r-- | drivers/input/joydev.c | 84 | ||||
| -rw-r--r-- | drivers/input/mousedev.c | 242 | ||||
| -rw-r--r-- | drivers/input/tsdev.c | 88 | ||||
| -rw-r--r-- | include/linux/input.h | 20 |
6 files changed, 345 insertions, 309 deletions
diff --git a/drivers/input/evdev.c b/drivers/input/evdev.c index be6b93c20f60..ab4b2d9b5327 100644 --- a/drivers/input/evdev.c +++ b/drivers/input/evdev.c @@ -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); - - evdev_table[minor] = evdev; + snprintf(evdev->name, sizeof(evdev->name), "event%d", minor); - devt = MKDEV(INPUT_MAJOR, EVDEV_MINOR_BASE + 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); - 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; - } + evdev_table[minor] = 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[] = { diff --git a/drivers/input/input.c b/drivers/input/input.c index ccd8abafcb70..75b4d2a83dd9 100644 --- a/drivers/input/input.c +++ b/drivers/input/input.c @@ -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(); } diff --git a/drivers/input/joydev.c b/drivers/input/joydev.c index 10e3b7bc925f..a9a0180bfd46 100644 --- a/drivers/input/joydev.c +++ b/drivers/input/joydev.c @@ -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); } - joydev_table[minor] = joydev; - - devt = MKDEV(INPUT_MAJOR, JOYDEV_MINOR_BASE + minor), + 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); - 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; - } + joydev_table[minor] = 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[] = { diff --git a/drivers/input/mousedev.c b/drivers/input/mousedev.c index 3f4866d8d18c..9173916b8be5 100644 --- a/drivers/input/mousedev.c +++ b/drivers/input/mousedev.c @@ -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) @@ -680,57 +692,96 @@ static const struct file_operations mousedev_fops = { .fasync = mousedev_fasync, }; -static int mousedev_connect(struct input_handler *handler, struct input_dev *dev, - const struct input_device_id *id) +static struct mousedev *mousedev_create(struct input_dev *dev, + struct input_handler *handler, + int minor) { struct mousedev *mousedev; - struct class_device *cdev; - dev_t devt; - int minor; int error; - for (minor = 0; minor < MOUSEDEV_MINORS && mousedev_table[minor]; minor++); - if (minor == MOUSEDEV_MINORS) { - printk(KERN_ERR "mousedev: no more free mousedev devices\n"); - return -ENFILE; - } - mousedev = kzalloc(sizeof(struct mousedev), GFP_KERNEL); - if (!mousedev) - return -ENOMEM; + 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; - sprintf(mousedev->name, "mouse%d", minor); - mousedev_table[minor] = 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); - devt = MKDEV(INPUT_MAJOR, MOUSEDEV_MINOR_BASE + minor), + mousedev_table[minor] = mousedev; - cdev = class_device_create(&input_class, &dev->cdev, devt, - dev->cdev.dev, mousedev->name); - if (IS_ERR(cdev)) { - error = PTR_ERR(cdev); + 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); } - /* temporary symlink to keep userspace happy */ - error = sysfs_create_link(&input_class.subsys.kobj, - &cdev->kobj, mousedev->name); - if (error) - goto err_cdev_destroy; + 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; + int minor; + int error; + + for (minor = 0; minor < MOUSEDEV_MINORS && mousedev_table[minor]; minor++); + if (minor == MOUSEDEV_MINORS) { + printk(KERN_ERR "mousedev: no more free mousedev devices\n"); + return -ENFILE; + } + + 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); diff --git a/drivers/input/tsdev.c b/drivers/input/tsdev.c index 2db364898e15..4cd5bbc44cca 100644 --- a/drivers/input/tsdev.c +++ b/drivers/input/tsdev.c @@ -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); - tsdev_table[minor] = tsdev; - - devt = MKDEV(INPUT_MAJOR, TSDEV_MINOR_BASE + minor), + 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); - 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; - } + tsdev_table[minor] = 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[] = { diff --git a/include/linux/input.h b/include/linux/input.h index d8521c72f69f..18c98b543030 100644 --- a/include/linux/input.h +++ b/include/linux/input.h @@ -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) |