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Diffstat (limited to 'sound/usb/caiaq/caiaq-input.c')
-rw-r--r--sound/usb/caiaq/caiaq-input.c246
1 files changed, 0 insertions, 246 deletions
diff --git a/sound/usb/caiaq/caiaq-input.c b/sound/usb/caiaq/caiaq-input.c
deleted file mode 100644
index 3acd12db695..00000000000
--- a/sound/usb/caiaq/caiaq-input.c
+++ /dev/null
@@ -1,246 +0,0 @@
-/*
- * 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 };
-
-#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 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;
- }
-}
-
-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(EV_KEY) | BIT(EV_ABS);
- input->absbit[0] = BIT(ABS_X) | BIT(ABS_Y) | BIT(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_AK1):
- input->evbit[0] = BIT(EV_KEY) | BIT(EV_ABS);
- input->absbit[0] = BIT(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);
- input_free_device(dev->input_dev);
- dev->input_dev = NULL;
-}
-
-#endif /* CONFIG_SND_USB_CAIAQ_INPUT */
-
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