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linux/sound/usb/caiaq/caiaq-input.c
Jiri Slaby 7b19ada2ed get rid of input BIT* duplicate defines 
get rid of input BIT* duplicate defines

use newly global defined macros for input layer. Also remove includes of
input.h from non-input sources only for BIT macro definiton. Define the
macro temporarily in local manner, all those local definitons will be
removed further in this patchset (to not break bisecting).
BIT macro will be globally defined (1<<x)

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Cc: <dtor@mail.ru>
Acked-by: Jiri Kosina <jkosina@suse.cz>
Cc: <lenb@kernel.org>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Cc: <perex@suse.cz>
Acked-by: Mauro Carvalho Chehab <mchehab@infradead.org>
Cc: <vernux@us.ibm.com>
Cc: <malattia@linux.it>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-19 11:53:42 -07:00

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/*
* Copyright (c) 2006,2007 Daniel Mack, Tim Ruetz
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <linux/init.h>
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/input.h>
#include <linux/usb.h>
#include <linux/spinlock.h>
#include <sound/driver.h>
#include <sound/core.h>
#include <sound/rawmidi.h>
#include <sound/pcm.h>
#include "caiaq-device.h"
#include "caiaq-input.h"
#ifdef CONFIG_SND_USB_CAIAQ_INPUT
static unsigned char keycode_ak1[] = { KEY_C, KEY_B, KEY_A };
static unsigned char keycode_rk2[] = { KEY_1, KEY_2, KEY_3, KEY_4,
KEY_5, KEY_6, KEY_7 };
static unsigned char keycode_rk3[] = { KEY_1, KEY_2, KEY_3, KEY_4,
KEY_5, KEY_6, KEY_7, KEY_5, KEY_6 };
#define DEG90 (range/2)
#define DEG180 (range)
#define DEG270 (DEG90 + DEG180)
#define DEG360 (DEG180 * 2)
#define HIGH_PEAK (268)
#define LOW_PEAK (-7)
/* some of these devices have endless rotation potentiometers
* built in which use two tapers, 90 degrees phase shifted.
* this algorithm decodes them to one single value, ranging
* from 0 to 999 */
static unsigned int decode_erp(unsigned char a, unsigned char b)
{
int weight_a, weight_b;
int pos_a, pos_b;
int ret;
int range = HIGH_PEAK - LOW_PEAK;
int mid_value = (HIGH_PEAK + LOW_PEAK) / 2;
weight_b = abs(mid_value-a) - (range/2 - 100)/2;
if (weight_b < 0)
weight_b = 0;
if (weight_b > 100)
weight_b = 100;
weight_a = 100 - weight_b;
if (a < mid_value) {
/* 0..90 and 270..360 degrees */
pos_b = b - LOW_PEAK + DEG270;
if (pos_b >= DEG360)
pos_b -= DEG360;
} else
/* 90..270 degrees */
pos_b = HIGH_PEAK - b + DEG90;
if (b > mid_value)
/* 0..180 degrees */
pos_a = a - LOW_PEAK;
else
/* 180..360 degrees */
pos_a = HIGH_PEAK - a + DEG180;
/* interpolate both slider values, depending on weight factors */
/* 0..99 x DEG360 */
ret = pos_a * weight_a + pos_b * weight_b;
/* normalize to 0..999 */
ret *= 10;
ret /= DEG360;
if (ret < 0)
ret += 1000;
if (ret >= 1000)
ret -= 1000;
return ret;
}
#undef DEG90
#undef DEG180
#undef DEG270
#undef DEG360
#undef HIGH_PEAK
#undef LOW_PEAK
static void snd_caiaq_input_read_analog(struct snd_usb_caiaqdev *dev,
const unsigned char *buf,
unsigned int len)
{
switch(dev->input_dev->id.product) {
case USB_PID_RIGKONTROL2:
input_report_abs(dev->input_dev, ABS_X, (buf[4] << 8) |buf[5]);
input_report_abs(dev->input_dev, ABS_Y, (buf[0] << 8) |buf[1]);
input_report_abs(dev->input_dev, ABS_Z, (buf[2] << 8) |buf[3]);
input_sync(dev->input_dev);
break;
case USB_PID_RIGKONTROL3:
input_report_abs(dev->input_dev, ABS_X, (buf[0] << 8) |buf[1]);
input_report_abs(dev->input_dev, ABS_Y, (buf[2] << 8) |buf[3]);
input_report_abs(dev->input_dev, ABS_Z, (buf[4] << 8) |buf[5]);
input_sync(dev->input_dev);
break;
}
}
static void snd_caiaq_input_read_erp(struct snd_usb_caiaqdev *dev,
const char *buf, unsigned int len)
{
int i;
switch(dev->input_dev->id.product) {
case USB_PID_AK1:
i = decode_erp(buf[0], buf[1]);
input_report_abs(dev->input_dev, ABS_X, i);
input_sync(dev->input_dev);
break;
}
}
static void snd_caiaq_input_read_io(struct snd_usb_caiaqdev *dev,
char *buf, unsigned int len)
{
int i;
unsigned char *keycode = dev->input_dev->keycode;
if (!keycode)
return;
if (dev->input_dev->id.product == USB_PID_RIGKONTROL2)
for (i=0; i<len; i++)
buf[i] = ~buf[i];
for (i=0; (i<dev->input_dev->keycodemax) && (i < len); i++)
input_report_key(dev->input_dev, keycode[i],
buf[i/8] & (1 << (i%8)));
input_sync(dev->input_dev);
}
void snd_usb_caiaq_input_dispatch(struct snd_usb_caiaqdev *dev,
char *buf,
unsigned int len)
{
if (!dev->input_dev || (len < 1))
return;
switch (buf[0]) {
case EP1_CMD_READ_ANALOG:
snd_caiaq_input_read_analog(dev, buf+1, len-1);
break;
case EP1_CMD_READ_ERP:
snd_caiaq_input_read_erp(dev, buf+1, len-1);
break;
case EP1_CMD_READ_IO:
snd_caiaq_input_read_io(dev, buf+1, len-1);
break;
}
}
int snd_usb_caiaq_input_init(struct snd_usb_caiaqdev *dev)
{
struct usb_device *usb_dev = dev->chip.dev;
struct input_dev *input;
int i, ret;
input = input_allocate_device();
if (!input)
return -ENOMEM;
input->name = dev->product_name;
input->id.bustype = BUS_USB;
input->id.vendor = usb_dev->descriptor.idVendor;
input->id.product = usb_dev->descriptor.idProduct;
input->id.version = usb_dev->descriptor.bcdDevice;
switch (dev->chip.usb_id) {
case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_RIGKONTROL2):
input->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
input->absbit[0] = BIT_MASK(ABS_X) | BIT_MASK(ABS_Y) |
BIT_MASK(ABS_Z);
input->keycode = keycode_rk2;
input->keycodesize = sizeof(char);
input->keycodemax = ARRAY_SIZE(keycode_rk2);
for (i=0; i<ARRAY_SIZE(keycode_rk2); i++)
set_bit(keycode_rk2[i], input->keybit);
input_set_abs_params(input, ABS_X, 0, 4096, 0, 10);
input_set_abs_params(input, ABS_Y, 0, 4096, 0, 10);
input_set_abs_params(input, ABS_Z, 0, 4096, 0, 10);
snd_usb_caiaq_set_auto_msg(dev, 1, 10, 0);
break;
case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_RIGKONTROL3):
input->evbit[0] = BIT(EV_KEY) | BIT(EV_ABS);
input->absbit[0] = BIT(ABS_X) | BIT(ABS_Y) | BIT(ABS_Z);
input->keycode = keycode_rk3;
input->keycodesize = sizeof(char);
input->keycodemax = ARRAY_SIZE(keycode_rk3);
for (i=0; i<ARRAY_SIZE(keycode_rk3); i++)
set_bit(keycode_rk3[i], input->keybit);
input_set_abs_params(input, ABS_X, 0, 1024, 0, 10);
input_set_abs_params(input, ABS_Y, 0, 1024, 0, 10);
input_set_abs_params(input, ABS_Z, 0, 1024, 0, 10);
snd_usb_caiaq_set_auto_msg(dev, 1, 10, 0);
break;
case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_AK1):
input->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
input->absbit[0] = BIT_MASK(ABS_X);
input->keycode = keycode_ak1;
input->keycodesize = sizeof(char);
input->keycodemax = ARRAY_SIZE(keycode_ak1);
for (i=0; i<ARRAY_SIZE(keycode_ak1); i++)
set_bit(keycode_ak1[i], input->keybit);
input_set_abs_params(input, ABS_X, 0, 999, 0, 10);
snd_usb_caiaq_set_auto_msg(dev, 1, 0, 5);
break;
default:
/* no input methods supported on this device */
input_free_device(input);
return 0;
}
ret = input_register_device(input);
if (ret < 0) {
input_free_device(input);
return ret;
}
dev->input_dev = input;
return 0;
}
void snd_usb_caiaq_input_free(struct snd_usb_caiaqdev *dev)
{
if (!dev || !dev->input_dev)
return;
input_unregister_device(dev->input_dev);
dev->input_dev = NULL;
}
#endif /* CONFIG_SND_USB_CAIAQ_INPUT */
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