1 // SPDX-License-Identifier: GPL-2.0-or-later
4  * Copyright (c) 2011-2013 David Herrmann <dh.herrmann@gmail.com>
15 #include "hid-wiimote.h"
26 	struct wiimote_debug *dbg = f->private_data;  in wiidebug_eeprom_read()
27 	struct wiimote_data *wdata = dbg->wdata;  in wiidebug_eeprom_read()
34 		return -EINVAL;  in wiidebug_eeprom_read()
44 	spin_lock_irqsave(&wdata->state.lock, flags);  in wiidebug_eeprom_read()
45 	wdata->state.cmd_read_size = s;  in wiidebug_eeprom_read()
46 	wdata->state.cmd_read_buf = buf;  in wiidebug_eeprom_read()
49 	spin_unlock_irqrestore(&wdata->state.lock, flags);  in wiidebug_eeprom_read()
53 		size = wdata->state.cmd_read_size;  in wiidebug_eeprom_read()
55 	spin_lock_irqsave(&wdata->state.lock, flags);  in wiidebug_eeprom_read()
56 	wdata->state.cmd_read_buf = NULL;  in wiidebug_eeprom_read()
57 	spin_unlock_irqrestore(&wdata->state.lock, flags);  in wiidebug_eeprom_read()
64 		return -EIO;  in wiidebug_eeprom_read()
67 		return -EFAULT;  in wiidebug_eeprom_read()
100 	struct wiimote_debug *dbg = f->private;  in wiidebug_drm_show()
105 	spin_lock_irqsave(&dbg->wdata->state.lock, flags);  in wiidebug_drm_show()
106 	drm = dbg->wdata->state.drm;  in wiidebug_drm_show()
107 	spin_unlock_irqrestore(&dbg->wdata->state.lock, flags);  in wiidebug_drm_show()
121 	return single_open(f, wiidebug_drm_show, i->i_private);  in wiidebug_drm_open()
127 	struct seq_file *sf = f->private_data;  in wiidebug_drm_write()
128 	struct wiimote_debug *dbg = sf->private;  in wiidebug_drm_write()
135 		return -EINVAL;  in wiidebug_drm_write()
139 		return -EFAULT;  in wiidebug_drm_write()
153 	spin_lock_irqsave(&dbg->wdata->state.lock, flags);  in wiidebug_drm_write()
154 	dbg->wdata->state.flags &= ~WIIPROTO_FLAG_DRM_LOCKED;  in wiidebug_drm_write()
155 	wiiproto_req_drm(dbg->wdata, (__u8) i);  in wiidebug_drm_write()
157 		dbg->wdata->state.flags |= WIIPROTO_FLAG_DRM_LOCKED;  in wiidebug_drm_write()
158 	spin_unlock_irqrestore(&dbg->wdata->state.lock, flags);  in wiidebug_drm_write()
179 		return -ENOMEM;  in wiidebug_init()
181 	dbg->wdata = wdata;  in wiidebug_init()
183 	dbg->eeprom = debugfs_create_file("eeprom", S_IRUSR,  in wiidebug_init()
184 		dbg->wdata->hdev->debug_dir, dbg, &wiidebug_eeprom_fops);  in wiidebug_init()
186 	dbg->drm = debugfs_create_file("drm", S_IRUSR,  in wiidebug_init()
187 			dbg->wdata->hdev->debug_dir, dbg, &wiidebug_drm_fops);  in wiidebug_init()
189 	spin_lock_irqsave(&wdata->state.lock, flags);  in wiidebug_init()
190 	wdata->debug = dbg;  in wiidebug_init()
191 	spin_unlock_irqrestore(&wdata->state.lock, flags);  in wiidebug_init()
199 	struct wiimote_debug *dbg = wdata->debug;  in wiidebug_deinit()
205 	spin_lock_irqsave(&wdata->state.lock, flags);  in wiidebug_deinit()
206 	wdata->debug = NULL;  in wiidebug_deinit()
207 	spin_unlock_irqrestore(&wdata->state.lock, flags);  in wiidebug_deinit()
209 	debugfs_remove(dbg->drm);  in wiidebug_deinit()
210 	debugfs_remove(dbg->eeprom);  in wiidebug_deinit()