364 lines
11 KiB
C
364 lines
11 KiB
C
/*
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* Copyright (c) 2006,2007 Daniel Mack, Tim Ruetz
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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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#include <linux/init.h>
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#include <linux/module.h>
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#include <linux/moduleparam.h>
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#include <linux/input.h>
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#include <linux/usb.h>
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#include <linux/usb/input.h>
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#include <linux/spinlock.h>
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#include <sound/core.h>
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#include <sound/rawmidi.h>
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#include <sound/pcm.h>
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#include "caiaq-device.h"
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#include "caiaq-input.h"
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static unsigned short keycode_ak1[] = { KEY_C, KEY_B, KEY_A };
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static unsigned short keycode_rk2[] = { KEY_1, KEY_2, KEY_3, KEY_4,
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KEY_5, KEY_6, KEY_7 };
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static unsigned short keycode_rk3[] = { KEY_1, KEY_2, KEY_3, KEY_4,
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KEY_5, KEY_6, KEY_7, KEY_5, KEY_6 };
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static unsigned short keycode_kore[] = {
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KEY_FN_F1, /* "menu" */
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KEY_FN_F7, /* "lcd backlight */
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KEY_FN_F2, /* "control" */
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KEY_FN_F3, /* "enter" */
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KEY_FN_F4, /* "view" */
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KEY_FN_F5, /* "esc" */
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KEY_FN_F6, /* "sound" */
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KEY_FN_F8, /* array spacer, never triggered. */
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KEY_RIGHT,
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KEY_DOWN,
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KEY_UP,
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KEY_LEFT,
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KEY_SOUND, /* "listen" */
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KEY_RECORD,
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KEY_PLAYPAUSE,
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KEY_STOP,
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BTN_4, /* 8 softkeys */
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BTN_3,
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BTN_2,
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BTN_1,
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BTN_8,
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BTN_7,
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BTN_6,
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BTN_5,
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KEY_BRL_DOT4, /* touch sensitive knobs */
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KEY_BRL_DOT3,
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KEY_BRL_DOT2,
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KEY_BRL_DOT1,
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KEY_BRL_DOT8,
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KEY_BRL_DOT7,
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KEY_BRL_DOT6,
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KEY_BRL_DOT5
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};
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#define DEG90 (range / 2)
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#define DEG180 (range)
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#define DEG270 (DEG90 + DEG180)
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#define DEG360 (DEG180 * 2)
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#define HIGH_PEAK (268)
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#define LOW_PEAK (-7)
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/* some of these devices have endless rotation potentiometers
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* built in which use two tapers, 90 degrees phase shifted.
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* this algorithm decodes them to one single value, ranging
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* from 0 to 999 */
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static unsigned int decode_erp(unsigned char a, unsigned char b)
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{
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int weight_a, weight_b;
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int pos_a, pos_b;
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int ret;
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int range = HIGH_PEAK - LOW_PEAK;
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int mid_value = (HIGH_PEAK + LOW_PEAK) / 2;
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weight_b = abs(mid_value - a) - (range / 2 - 100) / 2;
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if (weight_b < 0)
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weight_b = 0;
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if (weight_b > 100)
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weight_b = 100;
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weight_a = 100 - weight_b;
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if (a < mid_value) {
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/* 0..90 and 270..360 degrees */
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pos_b = b - LOW_PEAK + DEG270;
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if (pos_b >= DEG360)
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pos_b -= DEG360;
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} else
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/* 90..270 degrees */
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pos_b = HIGH_PEAK - b + DEG90;
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if (b > mid_value)
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/* 0..180 degrees */
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pos_a = a - LOW_PEAK;
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else
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/* 180..360 degrees */
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pos_a = HIGH_PEAK - a + DEG180;
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/* interpolate both slider values, depending on weight factors */
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/* 0..99 x DEG360 */
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ret = pos_a * weight_a + pos_b * weight_b;
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/* normalize to 0..999 */
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ret *= 10;
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ret /= DEG360;
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if (ret < 0)
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ret += 1000;
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if (ret >= 1000)
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ret -= 1000;
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return ret;
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}
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#undef DEG90
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#undef DEG180
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#undef DEG270
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#undef DEG360
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#undef HIGH_PEAK
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#undef LOW_PEAK
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static void snd_caiaq_input_read_analog(struct snd_usb_caiaqdev *dev,
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const unsigned char *buf,
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unsigned int len)
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{
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struct input_dev *input_dev = dev->input_dev;
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switch (dev->chip.usb_id) {
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case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_RIGKONTROL2):
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input_report_abs(input_dev, ABS_X, (buf[4] << 8) | buf[5]);
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input_report_abs(input_dev, ABS_Y, (buf[0] << 8) | buf[1]);
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input_report_abs(input_dev, ABS_Z, (buf[2] << 8) | buf[3]);
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input_sync(input_dev);
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break;
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case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_RIGKONTROL3):
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input_report_abs(input_dev, ABS_X, (buf[0] << 8) | buf[1]);
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input_report_abs(input_dev, ABS_Y, (buf[2] << 8) | buf[3]);
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input_report_abs(input_dev, ABS_Z, (buf[4] << 8) | buf[5]);
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input_sync(input_dev);
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break;
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case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_KORECONTROLLER):
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case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_KORECONTROLLER2):
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input_report_abs(input_dev, ABS_X, (buf[0] << 8) | buf[1]);
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input_report_abs(input_dev, ABS_Y, (buf[2] << 8) | buf[3]);
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input_report_abs(input_dev, ABS_Z, (buf[4] << 8) | buf[5]);
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input_sync(input_dev);
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break;
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}
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}
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static void snd_caiaq_input_read_erp(struct snd_usb_caiaqdev *dev,
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const char *buf, unsigned int len)
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{
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struct input_dev *input_dev = dev->input_dev;
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int i;
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switch (dev->chip.usb_id) {
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case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_AK1):
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i = decode_erp(buf[0], buf[1]);
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input_report_abs(input_dev, ABS_X, i);
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input_sync(input_dev);
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break;
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case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_KORECONTROLLER):
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case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_KORECONTROLLER2):
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i = decode_erp(buf[7], buf[5]);
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input_report_abs(input_dev, ABS_HAT0X, i);
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i = decode_erp(buf[12], buf[14]);
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input_report_abs(input_dev, ABS_HAT0Y, i);
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i = decode_erp(buf[15], buf[13]);
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input_report_abs(input_dev, ABS_HAT1X, i);
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i = decode_erp(buf[0], buf[2]);
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input_report_abs(input_dev, ABS_HAT1Y, i);
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i = decode_erp(buf[3], buf[1]);
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input_report_abs(input_dev, ABS_HAT2X, i);
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i = decode_erp(buf[8], buf[10]);
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input_report_abs(input_dev, ABS_HAT2Y, i);
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i = decode_erp(buf[11], buf[9]);
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input_report_abs(input_dev, ABS_HAT3X, i);
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i = decode_erp(buf[4], buf[6]);
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input_report_abs(input_dev, ABS_HAT3Y, i);
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input_sync(input_dev);
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break;
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}
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}
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static void snd_caiaq_input_read_io(struct snd_usb_caiaqdev *dev,
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char *buf, unsigned int len)
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{
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struct input_dev *input_dev = dev->input_dev;
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unsigned short *keycode = input_dev->keycode;
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int i;
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if (!keycode)
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return;
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if (input_dev->id.product == USB_PID_RIGKONTROL2)
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for (i = 0; i < len; i++)
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buf[i] = ~buf[i];
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for (i = 0; i < input_dev->keycodemax && i < len * 8; i++)
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input_report_key(input_dev, keycode[i],
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buf[i / 8] & (1 << (i % 8)));
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if (dev->chip.usb_id ==
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USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_KORECONTROLLER) ||
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dev->chip.usb_id ==
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USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_KORECONTROLLER2))
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input_report_abs(dev->input_dev, ABS_MISC, 255 - buf[4]);
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input_sync(input_dev);
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}
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void snd_usb_caiaq_input_dispatch(struct snd_usb_caiaqdev *dev,
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char *buf,
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unsigned int len)
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{
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if (!dev->input_dev || len < 1)
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return;
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switch (buf[0]) {
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case EP1_CMD_READ_ANALOG:
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snd_caiaq_input_read_analog(dev, buf + 1, len - 1);
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break;
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case EP1_CMD_READ_ERP:
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snd_caiaq_input_read_erp(dev, buf + 1, len - 1);
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break;
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case EP1_CMD_READ_IO:
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snd_caiaq_input_read_io(dev, buf + 1, len - 1);
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break;
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}
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}
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int snd_usb_caiaq_input_init(struct snd_usb_caiaqdev *dev)
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{
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struct usb_device *usb_dev = dev->chip.dev;
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struct input_dev *input;
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int i, ret;
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input = input_allocate_device();
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if (!input)
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return -ENOMEM;
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usb_make_path(usb_dev, dev->phys, sizeof(dev->phys));
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strlcat(dev->phys, "/input0", sizeof(dev->phys));
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input->name = dev->product_name;
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input->phys = dev->phys;
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usb_to_input_id(usb_dev, &input->id);
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input->dev.parent = &usb_dev->dev;
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switch (dev->chip.usb_id) {
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case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_RIGKONTROL2):
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input->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
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input->absbit[0] = BIT_MASK(ABS_X) | BIT_MASK(ABS_Y) |
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BIT_MASK(ABS_Z);
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BUILD_BUG_ON(sizeof(dev->keycode) < sizeof(keycode_rk2));
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memcpy(dev->keycode, keycode_rk2, sizeof(keycode_rk2));
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input->keycodemax = ARRAY_SIZE(keycode_rk2);
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input_set_abs_params(input, ABS_X, 0, 4096, 0, 10);
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input_set_abs_params(input, ABS_Y, 0, 4096, 0, 10);
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input_set_abs_params(input, ABS_Z, 0, 4096, 0, 10);
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snd_usb_caiaq_set_auto_msg(dev, 1, 10, 0);
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break;
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case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_RIGKONTROL3):
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input->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
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input->absbit[0] = BIT_MASK(ABS_X) | BIT_MASK(ABS_Y) |
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BIT_MASK(ABS_Z);
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BUILD_BUG_ON(sizeof(dev->keycode) < sizeof(keycode_rk3));
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memcpy(dev->keycode, keycode_rk3, sizeof(keycode_rk3));
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input->keycodemax = ARRAY_SIZE(keycode_rk3);
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input_set_abs_params(input, ABS_X, 0, 1024, 0, 10);
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input_set_abs_params(input, ABS_Y, 0, 1024, 0, 10);
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input_set_abs_params(input, ABS_Z, 0, 1024, 0, 10);
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snd_usb_caiaq_set_auto_msg(dev, 1, 10, 0);
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break;
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case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_AK1):
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input->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
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input->absbit[0] = BIT_MASK(ABS_X);
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BUILD_BUG_ON(sizeof(dev->keycode) < sizeof(keycode_ak1));
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memcpy(dev->keycode, keycode_ak1, sizeof(keycode_ak1));
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input->keycodemax = ARRAY_SIZE(keycode_ak1);
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input_set_abs_params(input, ABS_X, 0, 999, 0, 10);
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snd_usb_caiaq_set_auto_msg(dev, 1, 0, 5);
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break;
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case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_KORECONTROLLER):
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case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_KORECONTROLLER2):
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input->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
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input->absbit[0] = BIT_MASK(ABS_HAT0X) | BIT_MASK(ABS_HAT0Y) |
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BIT_MASK(ABS_HAT1X) | BIT_MASK(ABS_HAT1Y) |
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BIT_MASK(ABS_HAT2X) | BIT_MASK(ABS_HAT2Y) |
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BIT_MASK(ABS_HAT3X) | BIT_MASK(ABS_HAT3Y) |
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BIT_MASK(ABS_X) | BIT_MASK(ABS_Y) |
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BIT_MASK(ABS_Z);
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input->absbit[BIT_WORD(ABS_MISC)] |= BIT_MASK(ABS_MISC);
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BUILD_BUG_ON(sizeof(dev->keycode) < sizeof(keycode_kore));
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memcpy(dev->keycode, keycode_kore, sizeof(keycode_kore));
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input->keycodemax = ARRAY_SIZE(keycode_kore);
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input_set_abs_params(input, ABS_HAT0X, 0, 999, 0, 10);
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input_set_abs_params(input, ABS_HAT0Y, 0, 999, 0, 10);
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input_set_abs_params(input, ABS_HAT1X, 0, 999, 0, 10);
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input_set_abs_params(input, ABS_HAT1Y, 0, 999, 0, 10);
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input_set_abs_params(input, ABS_HAT2X, 0, 999, 0, 10);
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input_set_abs_params(input, ABS_HAT2Y, 0, 999, 0, 10);
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input_set_abs_params(input, ABS_HAT3X, 0, 999, 0, 10);
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input_set_abs_params(input, ABS_HAT3Y, 0, 999, 0, 10);
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input_set_abs_params(input, ABS_X, 0, 4096, 0, 10);
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input_set_abs_params(input, ABS_Y, 0, 4096, 0, 10);
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input_set_abs_params(input, ABS_Z, 0, 4096, 0, 10);
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input_set_abs_params(input, ABS_MISC, 0, 255, 0, 1);
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snd_usb_caiaq_set_auto_msg(dev, 1, 10, 5);
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break;
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default:
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/* no input methods supported on this device */
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input_free_device(input);
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return 0;
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}
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input->keycode = dev->keycode;
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input->keycodesize = sizeof(unsigned short);
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for (i = 0; i < input->keycodemax; i++)
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__set_bit(dev->keycode[i], input->keybit);
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ret = input_register_device(input);
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if (ret < 0) {
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input_free_device(input);
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return ret;
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}
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dev->input_dev = input;
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return 0;
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}
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void snd_usb_caiaq_input_free(struct snd_usb_caiaqdev *dev)
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{
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if (!dev || !dev->input_dev)
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return;
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input_unregister_device(dev->input_dev);
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dev->input_dev = NULL;
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}
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