63 lines
1.8 KiB
C
63 lines
1.8 KiB
C
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/*
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* PID Force feedback support for hid devices.
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*
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* Copyright (c) 2002 Rodrigo Damazio.
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*/
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/*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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* Should you need to contact me, the author, you can do so by
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* e-mail - mail your message to <rdamazio@lsi.usp.br>
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*/
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#define FF_EFFECTS_MAX 64
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#define FF_PID_FLAGS_USED 1 /* If the effect exists */
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#define FF_PID_FLAGS_UPDATING 2 /* If the effect is being updated */
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#define FF_PID_FLAGS_PLAYING 3 /* If the effect is currently being played */
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#define FF_PID_FALSE 0
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#define FF_PID_TRUE 1
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struct hid_pid_effect {
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unsigned long flags;
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pid_t owner;
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unsigned int device_id; /* The device-assigned ID */
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struct ff_effect effect;
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};
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struct hid_ff_pid {
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struct hid_device *hid;
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unsigned long gain;
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struct urb *urbffout;
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struct usb_ctrlrequest ffcr;
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spinlock_t lock;
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unsigned char ctrl_buffer[8];
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struct hid_pid_effect effects[FF_EFFECTS_MAX];
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};
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/*
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* Constants from the PID usage table (still far from complete)
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*/
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#define FF_PID_USAGE_BLOCK_LOAD 0x89UL
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#define FF_PID_USAGE_BLOCK_FREE 0x90UL
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#define FF_PID_USAGE_NEW_EFFECT 0xABUL
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#define FF_PID_USAGE_POOL_REPORT 0x7FUL
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