| /* |
| * 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/usb/input.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 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): |
| 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): |
| 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)) |
| 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): |
| 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; |
| } |
| |
| #endif /* CONFIG_SND_USB_CAIAQ_INPUT */ |
| |