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-rw-r--r--sound/usb/caiaq/input.c358
1 files changed, 358 insertions, 0 deletions
diff --git a/sound/usb/caiaq/input.c b/sound/usb/caiaq/input.c
new file mode 100644
index 0000000..a48d309
--- /dev/null
+++ b/sound/usb/caiaq/input.c
@@ -0,0 +1,358 @@
+/*
+ * 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/usb.h>
+#include <linux/usb/input.h>
+#include <sound/pcm.h>
+
+#include "device.h"
+#include "input.h"
+
+static unsigned short keycode_ak1[] = { KEY_C, KEY_B, KEY_A };
+static unsigned short keycode_rk2[] = { KEY_1, KEY_2, KEY_3, KEY_4,
+ KEY_5, KEY_6, KEY_7 };
+static unsigned short keycode_rk3[] = { KEY_1, KEY_2, KEY_3, KEY_4,
+ KEY_5, KEY_6, KEY_7, KEY_5, KEY_6 };
+
+static unsigned short keycode_kore[] = {
+ KEY_FN_F1, /* "menu" */
+ KEY_FN_F7, /* "lcd backlight */
+ KEY_FN_F2, /* "control" */
+ KEY_FN_F3, /* "enter" */
+ KEY_FN_F4, /* "view" */
+ KEY_FN_F5, /* "esc" */
+ KEY_FN_F6, /* "sound" */
+ KEY_FN_F8, /* array spacer, never triggered. */
+ KEY_RIGHT,
+ KEY_DOWN,
+ KEY_UP,
+ KEY_LEFT,
+ KEY_SOUND, /* "listen" */
+ KEY_RECORD,
+ KEY_PLAYPAUSE,
+ KEY_STOP,
+ BTN_4, /* 8 softkeys */
+ BTN_3,
+ BTN_2,
+ BTN_1,
+ BTN_8,
+ BTN_7,
+ BTN_6,
+ BTN_5,
+ KEY_BRL_DOT4, /* touch sensitive knobs */
+ KEY_BRL_DOT3,
+ KEY_BRL_DOT2,
+ KEY_BRL_DOT1,
+ KEY_BRL_DOT8,
+ KEY_BRL_DOT7,
+ KEY_BRL_DOT6,
+ KEY_BRL_DOT5
+};
+
+#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)
+{
+ struct input_dev *input_dev = dev->input_dev;
+
+ switch (dev->chip.usb_id) {
+ case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_RIGKONTROL2):
+ input_report_abs(input_dev, ABS_X, (buf[4] << 8) | buf[5]);
+ input_report_abs(input_dev, ABS_Y, (buf[0] << 8) | buf[1]);
+ input_report_abs(input_dev, ABS_Z, (buf[2] << 8) | buf[3]);
+ input_sync(input_dev);
+ break;
+ case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_RIGKONTROL3):
+ input_report_abs(input_dev, ABS_X, (buf[0] << 8) | buf[1]);
+ input_report_abs(input_dev, ABS_Y, (buf[2] << 8) | buf[3]);
+ input_report_abs(input_dev, ABS_Z, (buf[4] << 8) | buf[5]);
+ input_sync(input_dev);
+ break;
+ case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_KORECONTROLLER):
+ case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_KORECONTROLLER2):
+ input_report_abs(input_dev, ABS_X, (buf[0] << 8) | buf[1]);
+ input_report_abs(input_dev, ABS_Y, (buf[2] << 8) | buf[3]);
+ input_report_abs(input_dev, ABS_Z, (buf[4] << 8) | buf[5]);
+ input_sync(input_dev);
+ break;
+ }
+}
+
+static void snd_caiaq_input_read_erp(struct snd_usb_caiaqdev *dev,
+ const char *buf, unsigned int len)
+{
+ struct input_dev *input_dev = dev->input_dev;
+ int i;
+
+ switch (dev->chip.usb_id) {
+ case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_AK1):
+ i = decode_erp(buf[0], buf[1]);
+ input_report_abs(input_dev, ABS_X, i);
+ input_sync(input_dev);
+ break;
+ case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_KORECONTROLLER):
+ case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_KORECONTROLLER2):
+ i = decode_erp(buf[7], buf[5]);
+ input_report_abs(input_dev, ABS_HAT0X, i);
+ i = decode_erp(buf[12], buf[14]);
+ input_report_abs(input_dev, ABS_HAT0Y, i);
+ i = decode_erp(buf[15], buf[13]);
+ input_report_abs(input_dev, ABS_HAT1X, i);
+ i = decode_erp(buf[0], buf[2]);
+ input_report_abs(input_dev, ABS_HAT1Y, i);
+ i = decode_erp(buf[3], buf[1]);
+ input_report_abs(input_dev, ABS_HAT2X, i);
+ i = decode_erp(buf[8], buf[10]);
+ input_report_abs(input_dev, ABS_HAT2Y, i);
+ i = decode_erp(buf[11], buf[9]);
+ input_report_abs(input_dev, ABS_HAT3X, i);
+ i = decode_erp(buf[4], buf[6]);
+ input_report_abs(input_dev, ABS_HAT3Y, i);
+ input_sync(input_dev);
+ break;
+ }
+}
+
+static void snd_caiaq_input_read_io(struct snd_usb_caiaqdev *dev,
+ char *buf, unsigned int len)
+{
+ struct input_dev *input_dev = dev->input_dev;
+ unsigned short *keycode = input_dev->keycode;
+ int i;
+
+ if (!keycode)
+ return;
+
+ if (input_dev->id.product == USB_PID_RIGKONTROL2)
+ for (i = 0; i < len; i++)
+ buf[i] = ~buf[i];
+
+ for (i = 0; i < input_dev->keycodemax && i < len * 8; i++)
+ input_report_key(input_dev, keycode[i],
+ buf[i / 8] & (1 << (i % 8)));
+
+ if (dev->chip.usb_id ==
+ USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_KORECONTROLLER) ||
+ dev->chip.usb_id ==
+ USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_KORECONTROLLER2))
+ input_report_abs(dev->input_dev, ABS_MISC, 255 - buf[4]);
+
+ input_sync(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;
+
+ usb_make_path(usb_dev, dev->phys, sizeof(dev->phys));
+ strlcat(dev->phys, "/input0", sizeof(dev->phys));
+
+ input->name = dev->product_name;
+ input->phys = dev->phys;
+ usb_to_input_id(usb_dev, &input->id);
+ input->dev.parent = &usb_dev->dev;
+
+ 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);
+ BUILD_BUG_ON(sizeof(dev->keycode) < sizeof(keycode_rk2));
+ memcpy(dev->keycode, keycode_rk2, sizeof(keycode_rk2));
+ input->keycodemax = ARRAY_SIZE(keycode_rk2);
+ 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_MASK(EV_KEY) | BIT_MASK(EV_ABS);
+ input->absbit[0] = BIT_MASK(ABS_X) | BIT_MASK(ABS_Y) |
+ BIT_MASK(ABS_Z);
+ BUILD_BUG_ON(sizeof(dev->keycode) < sizeof(keycode_rk3));
+ memcpy(dev->keycode, keycode_rk3, sizeof(keycode_rk3));
+ input->keycodemax = ARRAY_SIZE(keycode_rk3);
+ 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);
+ BUILD_BUG_ON(sizeof(dev->keycode) < sizeof(keycode_ak1));
+ memcpy(dev->keycode, keycode_ak1, sizeof(keycode_ak1));
+ input->keycodemax = ARRAY_SIZE(keycode_ak1);
+ input_set_abs_params(input, ABS_X, 0, 999, 0, 10);
+ snd_usb_caiaq_set_auto_msg(dev, 1, 0, 5);
+ break;
+ case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_KORECONTROLLER):
+ case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_KORECONTROLLER2):
+ input->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
+ input->absbit[0] = BIT_MASK(ABS_HAT0X) | BIT_MASK(ABS_HAT0Y) |
+ BIT_MASK(ABS_HAT1X) | BIT_MASK(ABS_HAT1Y) |
+ BIT_MASK(ABS_HAT2X) | BIT_MASK(ABS_HAT2Y) |
+ BIT_MASK(ABS_HAT3X) | BIT_MASK(ABS_HAT3Y) |
+ BIT_MASK(ABS_X) | BIT_MASK(ABS_Y) |
+ BIT_MASK(ABS_Z);
+ input->absbit[BIT_WORD(ABS_MISC)] |= BIT_MASK(ABS_MISC);
+ BUILD_BUG_ON(sizeof(dev->keycode) < sizeof(keycode_kore));
+ memcpy(dev->keycode, keycode_kore, sizeof(keycode_kore));
+ input->keycodemax = ARRAY_SIZE(keycode_kore);
+ input_set_abs_params(input, ABS_HAT0X, 0, 999, 0, 10);
+ input_set_abs_params(input, ABS_HAT0Y, 0, 999, 0, 10);
+ input_set_abs_params(input, ABS_HAT1X, 0, 999, 0, 10);
+ input_set_abs_params(input, ABS_HAT1Y, 0, 999, 0, 10);
+ input_set_abs_params(input, ABS_HAT2X, 0, 999, 0, 10);
+ input_set_abs_params(input, ABS_HAT2Y, 0, 999, 0, 10);
+ input_set_abs_params(input, ABS_HAT3X, 0, 999, 0, 10);
+ input_set_abs_params(input, ABS_HAT3Y, 0, 999, 0, 10);
+ 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);
+ input_set_abs_params(input, ABS_MISC, 0, 255, 0, 1);
+ snd_usb_caiaq_set_auto_msg(dev, 1, 10, 5);
+ break;
+ default:
+ /* no input methods supported on this device */
+ input_free_device(input);
+ return 0;
+ }
+
+ input->keycode = dev->keycode;
+ input->keycodesize = sizeof(unsigned short);
+ for (i = 0; i < input->keycodemax; i++)
+ __set_bit(dev->keycode[i], input->keybit);
+
+ 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;
+}
+
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