| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * PID Force feedback support for hid devices. |
| 3 | * |
| 4 | * Copyright (c) 2002 Rodrigo Damazio. |
| 5 | */ |
| 6 | |
| 7 | /* |
| 8 | * This program is free software; you can redistribute it and/or modify |
| 9 | * it under the terms of the GNU General Public License as published by |
| 10 | * the Free Software Foundation; either version 2 of the License, or |
| 11 | * (at your option) any later version. |
| 12 | * |
| 13 | * This program is distributed in the hope that it will be useful, |
| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 | * GNU General Public License for more details. |
| 17 | * |
| 18 | * You should have received a copy of the GNU General Public License |
| 19 | * along with this program; if not, write to the Free Software |
| 20 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 21 | * |
| 22 | * Should you need to contact me, the author, you can do so by |
| 23 | * e-mail - mail your message to <rdamazio@lsi.usp.br> |
| 24 | */ |
| 25 | |
| 26 | #define FF_EFFECTS_MAX 64 |
| 27 | |
| 28 | #define FF_PID_FLAGS_USED 1 /* If the effect exists */ |
| 29 | #define FF_PID_FLAGS_UPDATING 2 /* If the effect is being updated */ |
| 30 | #define FF_PID_FLAGS_PLAYING 3 /* If the effect is currently being played */ |
| 31 | |
| 32 | #define FF_PID_FALSE 0 |
| 33 | #define FF_PID_TRUE 1 |
| 34 | |
| 35 | struct hid_pid_effect { |
| 36 | unsigned long flags; |
| 37 | pid_t owner; |
| 38 | unsigned int device_id; /* The device-assigned ID */ |
| 39 | struct ff_effect effect; |
| 40 | }; |
| 41 | |
| 42 | struct hid_ff_pid { |
| 43 | struct hid_device *hid; |
| 44 | unsigned long gain; |
| 45 | |
| 46 | struct urb *urbffout; |
| 47 | struct usb_ctrlrequest ffcr; |
| 48 | spinlock_t lock; |
| 49 | |
| 50 | unsigned char ctrl_buffer[8]; |
| 51 | |
| 52 | struct hid_pid_effect effects[FF_EFFECTS_MAX]; |
| 53 | }; |
| 54 | |
| 55 | /* |
| 56 | * Constants from the PID usage table (still far from complete) |
| 57 | */ |
| 58 | |
| 59 | #define FF_PID_USAGE_BLOCK_LOAD 0x89UL |
| 60 | #define FF_PID_USAGE_BLOCK_FREE 0x90UL |
| 61 | #define FF_PID_USAGE_NEW_EFFECT 0xABUL |
| 62 | #define FF_PID_USAGE_POOL_REPORT 0x7FUL |