diff options
Diffstat (limited to 'sound/usb/caiaq/input.c')
| -rw-r--r-- | sound/usb/caiaq/input.c | 358 |
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 00000000000..a48d309bd94 --- /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; +} + |