^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0-or-later
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * HID driver for N-Trig touchscreens
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Copyright (c) 2008-2010 Rafi Rubin
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) * Copyright (c) 2009-2010 Stephane Chatty
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <linux/device.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <linux/hid.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <linux/usb.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include "usbhid/usbhid.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #include "hid-ids.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) #define NTRIG_DUPLICATE_USAGES 0x001
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) static unsigned int min_width;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) module_param(min_width, uint, 0644);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) MODULE_PARM_DESC(min_width, "Minimum touch contact width to accept.");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) static unsigned int min_height;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) module_param(min_height, uint, 0644);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) MODULE_PARM_DESC(min_height, "Minimum touch contact height to accept.");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) static unsigned int activate_slack = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) module_param(activate_slack, uint, 0644);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) MODULE_PARM_DESC(activate_slack, "Number of touch frames to ignore at "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) "the start of touch input.");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) static unsigned int deactivate_slack = 4;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) module_param(deactivate_slack, uint, 0644);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) MODULE_PARM_DESC(deactivate_slack, "Number of empty frames to ignore before "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) "deactivating touch.");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) static unsigned int activation_width = 64;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) module_param(activation_width, uint, 0644);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) MODULE_PARM_DESC(activation_width, "Width threshold to immediately start "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) "processing touch events.");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) static unsigned int activation_height = 32;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) module_param(activation_height, uint, 0644);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) MODULE_PARM_DESC(activation_height, "Height threshold to immediately start "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) "processing touch events.");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) struct ntrig_data {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) /* Incoming raw values for a single contact */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) __u16 x, y, w, h;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) __u16 id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) bool tipswitch;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) bool confidence;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) bool first_contact_touch;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) bool reading_mt;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) __u8 mt_footer[4];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) __u8 mt_foot_count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) /* The current activation state. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) __s8 act_state;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) /* Empty frames to ignore before recognizing the end of activity */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) __s8 deactivate_slack;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) /* Frames to ignore before acknowledging the start of activity */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) __s8 activate_slack;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) /* Minimum size contact to accept */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) __u16 min_width;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) __u16 min_height;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) /* Threshold to override activation slack */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) __u16 activation_width;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) __u16 activation_height;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) __u16 sensor_logical_width;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) __u16 sensor_logical_height;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) __u16 sensor_physical_width;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) __u16 sensor_physical_height;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) * This function converts the 4 byte raw firmware code into
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) * a string containing 5 comma separated numbers.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) static int ntrig_version_string(unsigned char *raw, char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) __u8 a = (raw[1] & 0x0e) >> 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) __u8 b = (raw[0] & 0x3c) >> 2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) __u8 c = ((raw[0] & 0x03) << 3) | ((raw[3] & 0xe0) >> 5);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) __u8 d = ((raw[3] & 0x07) << 3) | ((raw[2] & 0xe0) >> 5);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) __u8 e = raw[2] & 0x07;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) * As yet unmapped bits:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) * 0b11000000 0b11110001 0b00011000 0b00011000
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) return sprintf(buf, "%u.%u.%u.%u.%u", a, b, c, d, e);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) static inline int ntrig_get_mode(struct hid_device *hdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) struct hid_report *report = hdev->report_enum[HID_FEATURE_REPORT].
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) report_id_hash[0x0d];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) if (!report || report->maxfield < 1 ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) report->field[0]->report_count < 1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) hid_hw_request(hdev, report, HID_REQ_GET_REPORT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) hid_hw_wait(hdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) return (int)report->field[0]->value[0];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) static inline void ntrig_set_mode(struct hid_device *hdev, const int mode)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) struct hid_report *report;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) __u8 mode_commands[4] = { 0xe, 0xf, 0x1b, 0x10 };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) if (mode < 0 || mode > 3)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) report = hdev->report_enum[HID_FEATURE_REPORT].
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) report_id_hash[mode_commands[mode]];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) if (!report)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) hid_hw_request(hdev, report, HID_REQ_GET_REPORT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) static void ntrig_report_version(struct hid_device *hdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) char buf[20];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) struct usb_device *usb_dev = hid_to_usb_dev(hdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) unsigned char *data = kmalloc(8, GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) if (!data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) goto err_free;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) ret = usb_control_msg(usb_dev, usb_rcvctrlpipe(usb_dev, 0),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) USB_REQ_CLEAR_FEATURE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) USB_TYPE_CLASS | USB_RECIP_INTERFACE |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) USB_DIR_IN,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) 0x30c, 1, data, 8,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) USB_CTRL_SET_TIMEOUT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) if (ret == 8) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) ret = ntrig_version_string(&data[2], buf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) hid_info(hdev, "Firmware version: %s (%02x%02x %02x%02x)\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) buf, data[2], data[3], data[4], data[5]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) err_free:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) kfree(data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) static ssize_t show_phys_width(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) struct device_attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) struct hid_device *hdev = to_hid_device(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) struct ntrig_data *nd = hid_get_drvdata(hdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) return sprintf(buf, "%d\n", nd->sensor_physical_width);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) static DEVICE_ATTR(sensor_physical_width, S_IRUGO, show_phys_width, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) static ssize_t show_phys_height(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) struct device_attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) struct hid_device *hdev = to_hid_device(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) struct ntrig_data *nd = hid_get_drvdata(hdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) return sprintf(buf, "%d\n", nd->sensor_physical_height);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) static DEVICE_ATTR(sensor_physical_height, S_IRUGO, show_phys_height, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) static ssize_t show_log_width(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) struct device_attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) struct hid_device *hdev = to_hid_device(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) struct ntrig_data *nd = hid_get_drvdata(hdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) return sprintf(buf, "%d\n", nd->sensor_logical_width);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) static DEVICE_ATTR(sensor_logical_width, S_IRUGO, show_log_width, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) static ssize_t show_log_height(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) struct device_attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) struct hid_device *hdev = to_hid_device(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) struct ntrig_data *nd = hid_get_drvdata(hdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) return sprintf(buf, "%d\n", nd->sensor_logical_height);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) static DEVICE_ATTR(sensor_logical_height, S_IRUGO, show_log_height, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) static ssize_t show_min_width(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) struct device_attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) struct hid_device *hdev = to_hid_device(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) struct ntrig_data *nd = hid_get_drvdata(hdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) return sprintf(buf, "%d\n", nd->min_width *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) nd->sensor_physical_width /
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) nd->sensor_logical_width);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) static ssize_t set_min_width(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) struct device_attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) const char *buf, size_t count)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) struct hid_device *hdev = to_hid_device(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) struct ntrig_data *nd = hid_get_drvdata(hdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) unsigned long val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) if (kstrtoul(buf, 0, &val))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) if (val > nd->sensor_physical_width)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) nd->min_width = val * nd->sensor_logical_width /
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) nd->sensor_physical_width;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) return count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) static DEVICE_ATTR(min_width, S_IWUSR | S_IRUGO, show_min_width, set_min_width);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) static ssize_t show_min_height(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) struct device_attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) struct hid_device *hdev = to_hid_device(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) struct ntrig_data *nd = hid_get_drvdata(hdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) return sprintf(buf, "%d\n", nd->min_height *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) nd->sensor_physical_height /
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) nd->sensor_logical_height);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) static ssize_t set_min_height(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) struct device_attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) const char *buf, size_t count)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) struct hid_device *hdev = to_hid_device(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) struct ntrig_data *nd = hid_get_drvdata(hdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) unsigned long val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) if (kstrtoul(buf, 0, &val))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) if (val > nd->sensor_physical_height)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) nd->min_height = val * nd->sensor_logical_height /
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) nd->sensor_physical_height;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) return count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) static DEVICE_ATTR(min_height, S_IWUSR | S_IRUGO, show_min_height,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) set_min_height);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) static ssize_t show_activate_slack(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) struct device_attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) struct hid_device *hdev = to_hid_device(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) struct ntrig_data *nd = hid_get_drvdata(hdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) return sprintf(buf, "%d\n", nd->activate_slack);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) static ssize_t set_activate_slack(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) struct device_attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) const char *buf, size_t count)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) struct hid_device *hdev = to_hid_device(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) struct ntrig_data *nd = hid_get_drvdata(hdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) unsigned long val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) if (kstrtoul(buf, 0, &val))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) if (val > 0x7f)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) nd->activate_slack = val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) return count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) static DEVICE_ATTR(activate_slack, S_IWUSR | S_IRUGO, show_activate_slack,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) set_activate_slack);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) static ssize_t show_activation_width(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) struct device_attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) struct hid_device *hdev = to_hid_device(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) struct ntrig_data *nd = hid_get_drvdata(hdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) return sprintf(buf, "%d\n", nd->activation_width *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) nd->sensor_physical_width /
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) nd->sensor_logical_width);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) static ssize_t set_activation_width(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) struct device_attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) const char *buf, size_t count)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) struct hid_device *hdev = to_hid_device(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) struct ntrig_data *nd = hid_get_drvdata(hdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) unsigned long val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) if (kstrtoul(buf, 0, &val))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) if (val > nd->sensor_physical_width)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) nd->activation_width = val * nd->sensor_logical_width /
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) nd->sensor_physical_width;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) return count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) static DEVICE_ATTR(activation_width, S_IWUSR | S_IRUGO, show_activation_width,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) set_activation_width);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) static ssize_t show_activation_height(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) struct device_attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) struct hid_device *hdev = to_hid_device(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) struct ntrig_data *nd = hid_get_drvdata(hdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) return sprintf(buf, "%d\n", nd->activation_height *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) nd->sensor_physical_height /
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) nd->sensor_logical_height);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) static ssize_t set_activation_height(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) struct device_attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) const char *buf, size_t count)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) struct hid_device *hdev = to_hid_device(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) struct ntrig_data *nd = hid_get_drvdata(hdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375) unsigned long val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377) if (kstrtoul(buf, 0, &val))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) if (val > nd->sensor_physical_height)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) nd->activation_height = val * nd->sensor_logical_height /
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) nd->sensor_physical_height;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) return count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389) static DEVICE_ATTR(activation_height, S_IWUSR | S_IRUGO,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) show_activation_height, set_activation_height);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392) static ssize_t show_deactivate_slack(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) struct device_attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) struct hid_device *hdev = to_hid_device(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397) struct ntrig_data *nd = hid_get_drvdata(hdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) return sprintf(buf, "%d\n", -nd->deactivate_slack);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402) static ssize_t set_deactivate_slack(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403) struct device_attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404) const char *buf, size_t count)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406) struct hid_device *hdev = to_hid_device(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407) struct ntrig_data *nd = hid_get_drvdata(hdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409) unsigned long val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411) if (kstrtoul(buf, 0, &val))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415) * No more than 8 terminal frames have been observed so far
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) * and higher slack is highly likely to leave the single
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417) * touch emulation stuck down.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419) if (val > 7)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422) nd->deactivate_slack = -val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424) return count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427) static DEVICE_ATTR(deactivate_slack, S_IWUSR | S_IRUGO, show_deactivate_slack,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428) set_deactivate_slack);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430) static struct attribute *sysfs_attrs[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431) &dev_attr_sensor_physical_width.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432) &dev_attr_sensor_physical_height.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433) &dev_attr_sensor_logical_width.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434) &dev_attr_sensor_logical_height.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435) &dev_attr_min_height.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436) &dev_attr_min_width.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437) &dev_attr_activate_slack.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438) &dev_attr_activation_width.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439) &dev_attr_activation_height.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440) &dev_attr_deactivate_slack.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441) NULL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444) static const struct attribute_group ntrig_attribute_group = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445) .attrs = sysfs_attrs
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 446) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 447)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 448) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 449) * this driver is aimed at two firmware versions in circulation:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 450) * - dual pen/finger single touch
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 451) * - finger multitouch, pen not working
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 452) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 453)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 454) static int ntrig_input_mapping(struct hid_device *hdev, struct hid_input *hi,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 455) struct hid_field *field, struct hid_usage *usage,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 456) unsigned long **bit, int *max)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 457) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 458) struct ntrig_data *nd = hid_get_drvdata(hdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 459)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 460) /* No special mappings needed for the pen and single touch */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 461) if (field->physical)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 462) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 463)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 464) switch (usage->hid & HID_USAGE_PAGE) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 465) case HID_UP_GENDESK:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 466) switch (usage->hid) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 467) case HID_GD_X:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 468) hid_map_usage(hi, usage, bit, max,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 469) EV_ABS, ABS_MT_POSITION_X);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 470) input_set_abs_params(hi->input, ABS_X,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 471) field->logical_minimum,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 472) field->logical_maximum, 0, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 473)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 474) if (!nd->sensor_logical_width) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 475) nd->sensor_logical_width =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 476) field->logical_maximum -
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 477) field->logical_minimum;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 478) nd->sensor_physical_width =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 479) field->physical_maximum -
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 480) field->physical_minimum;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 481) nd->activation_width = activation_width *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 482) nd->sensor_logical_width /
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 483) nd->sensor_physical_width;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 484) nd->min_width = min_width *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 485) nd->sensor_logical_width /
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 486) nd->sensor_physical_width;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 487) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 488) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 489) case HID_GD_Y:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 490) hid_map_usage(hi, usage, bit, max,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 491) EV_ABS, ABS_MT_POSITION_Y);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 492) input_set_abs_params(hi->input, ABS_Y,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 493) field->logical_minimum,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 494) field->logical_maximum, 0, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 495)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 496) if (!nd->sensor_logical_height) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 497) nd->sensor_logical_height =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 498) field->logical_maximum -
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 499) field->logical_minimum;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 500) nd->sensor_physical_height =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 501) field->physical_maximum -
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 502) field->physical_minimum;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 503) nd->activation_height = activation_height *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 504) nd->sensor_logical_height /
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 505) nd->sensor_physical_height;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 506) nd->min_height = min_height *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 507) nd->sensor_logical_height /
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 508) nd->sensor_physical_height;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 509) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 510) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 511) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 512) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 513)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 514) case HID_UP_DIGITIZER:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 515) switch (usage->hid) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 516) /* we do not want to map these for now */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 517) case HID_DG_CONTACTID: /* Not trustworthy, squelch for now */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 518) case HID_DG_INPUTMODE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 519) case HID_DG_DEVICEINDEX:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 520) case HID_DG_CONTACTMAX:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 521) return -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 522)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 523) /* width/height mapped on TouchMajor/TouchMinor/Orientation */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 524) case HID_DG_WIDTH:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 525) hid_map_usage(hi, usage, bit, max,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 526) EV_ABS, ABS_MT_TOUCH_MAJOR);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 527) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 528) case HID_DG_HEIGHT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 529) hid_map_usage(hi, usage, bit, max,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 530) EV_ABS, ABS_MT_TOUCH_MINOR);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 531) input_set_abs_params(hi->input, ABS_MT_ORIENTATION,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 532) 0, 1, 0, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 533) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 534) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 535) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 536)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 537) case 0xff000000:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 538) /* we do not want to map these: no input-oriented meaning */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 539) return -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 540) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 541)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 542) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 543) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 544)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 545) static int ntrig_input_mapped(struct hid_device *hdev, struct hid_input *hi,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 546) struct hid_field *field, struct hid_usage *usage,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 547) unsigned long **bit, int *max)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 548) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 549) /* No special mappings needed for the pen and single touch */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 550) if (field->physical)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 551) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 552)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 553) if (usage->type == EV_KEY || usage->type == EV_REL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 554) || usage->type == EV_ABS)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 555) clear_bit(usage->code, *bit);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 556)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 557) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 558) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 559)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 560) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 561) * this function is called upon all reports
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 562) * so that we can filter contact point information,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 563) * decide whether we are in multi or single touch mode
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 564) * and call input_mt_sync after each point if necessary
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 565) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 566) static int ntrig_event (struct hid_device *hid, struct hid_field *field,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 567) struct hid_usage *usage, __s32 value)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 568) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 569) struct ntrig_data *nd = hid_get_drvdata(hid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 570) struct input_dev *input;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 571)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 572) /* Skip processing if not a claimed input */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 573) if (!(hid->claimed & HID_CLAIMED_INPUT))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 574) goto not_claimed_input;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 575)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 576) /* This function is being called before the structures are fully
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 577) * initialized */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 578) if(!(field->hidinput && field->hidinput->input))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 579) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 580)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 581) input = field->hidinput->input;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 582)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 583) /* No special handling needed for the pen */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 584) if (field->application == HID_DG_PEN)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 585) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 586)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 587) switch (usage->hid) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 588) case 0xff000001:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 589) /* Tag indicating the start of a multitouch group */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 590) nd->reading_mt = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 591) nd->first_contact_touch = false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 592) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 593) case HID_DG_TIPSWITCH:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 594) nd->tipswitch = value;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 595) /* Prevent emission of touch until validated */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 596) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 597) case HID_DG_CONFIDENCE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 598) nd->confidence = value;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 599) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 600) case HID_GD_X:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 601) nd->x = value;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 602) /* Clear the contact footer */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 603) nd->mt_foot_count = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 604) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 605) case HID_GD_Y:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 606) nd->y = value;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 607) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 608) case HID_DG_CONTACTID:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 609) nd->id = value;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 610) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 611) case HID_DG_WIDTH:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 612) nd->w = value;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 613) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 614) case HID_DG_HEIGHT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 615) nd->h = value;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 616) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 617) * when in single touch mode, this is the last
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 618) * report received in a finger event. We want
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 619) * to emit a normal (X, Y) position
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 620) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 621) if (!nd->reading_mt) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 622) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 623) * TipSwitch indicates the presence of a
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 624) * finger in single touch mode.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 625) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 626) input_report_key(input, BTN_TOUCH,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 627) nd->tipswitch);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 628) input_report_key(input, BTN_TOOL_DOUBLETAP,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 629) nd->tipswitch);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 630) input_event(input, EV_ABS, ABS_X, nd->x);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 631) input_event(input, EV_ABS, ABS_Y, nd->y);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 632) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 633) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 634) case 0xff000002:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 635) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 636) * we receive this when the device is in multitouch
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 637) * mode. The first of the three values tagged with
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 638) * this usage tells if the contact point is real
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 639) * or a placeholder
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 640) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 641)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 642) /* Shouldn't get more than 4 footer packets, so skip */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 643) if (nd->mt_foot_count >= 4)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 644) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 645)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 646) nd->mt_footer[nd->mt_foot_count++] = value;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 647)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 648) /* if the footer isn't complete break */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 649) if (nd->mt_foot_count != 4)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 650) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 651)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 652) /* Pen activity signal. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 653) if (nd->mt_footer[2]) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 654) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 655) * When the pen deactivates touch, we see a
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 656) * bogus frame with ContactCount > 0.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 657) * We can
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 658) * save a bit of work by ensuring act_state < 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 659) * even if deactivation slack is turned off.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 660) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 661) nd->act_state = deactivate_slack - 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 662) nd->confidence = false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 663) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 664) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 665)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 666) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 667) * The first footer value indicates the presence of a
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 668) * finger.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 669) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 670) if (nd->mt_footer[0]) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 671) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 672) * We do not want to process contacts under
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 673) * the size threshold, but do not want to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 674) * ignore them for activation state
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 675) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 676) if (nd->w < nd->min_width ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 677) nd->h < nd->min_height)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 678) nd->confidence = false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 679) } else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 680) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 681)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 682) if (nd->act_state > 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 683) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 684) * Contact meets the activation size threshold
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 685) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 686) if (nd->w >= nd->activation_width &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 687) nd->h >= nd->activation_height) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 688) if (nd->id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 689) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 690) * first contact, activate now
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 691) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 692) nd->act_state = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 693) else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 694) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 695) * avoid corrupting this frame
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 696) * but ensure next frame will
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 697) * be active
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 698) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 699) nd->act_state = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 700) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 701) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 702) } else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 703) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 704) * Defer adjusting the activation state
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 705) * until the end of the frame.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 706) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 707) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 708) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 709)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 710) /* Discarding this contact */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 711) if (!nd->confidence)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 712) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 713)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 714) /* emit a normal (X, Y) for the first point only */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 715) if (nd->id == 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 716) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 717) * TipSwitch is superfluous in multitouch
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 718) * mode. The footer events tell us
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 719) * if there is a finger on the screen or
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 720) * not.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 721) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 722) nd->first_contact_touch = nd->confidence;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 723) input_event(input, EV_ABS, ABS_X, nd->x);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 724) input_event(input, EV_ABS, ABS_Y, nd->y);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 725) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 726)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 727) /* Emit MT events */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 728) input_event(input, EV_ABS, ABS_MT_POSITION_X, nd->x);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 729) input_event(input, EV_ABS, ABS_MT_POSITION_Y, nd->y);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 730)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 731) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 732) * Translate from height and width to size
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 733) * and orientation.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 734) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 735) if (nd->w > nd->h) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 736) input_event(input, EV_ABS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 737) ABS_MT_ORIENTATION, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 738) input_event(input, EV_ABS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 739) ABS_MT_TOUCH_MAJOR, nd->w);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 740) input_event(input, EV_ABS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 741) ABS_MT_TOUCH_MINOR, nd->h);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 742) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 743) input_event(input, EV_ABS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 744) ABS_MT_ORIENTATION, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 745) input_event(input, EV_ABS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 746) ABS_MT_TOUCH_MAJOR, nd->h);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 747) input_event(input, EV_ABS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 748) ABS_MT_TOUCH_MINOR, nd->w);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 749) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 750) input_mt_sync(field->hidinput->input);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 751) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 752)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 753) case HID_DG_CONTACTCOUNT: /* End of a multitouch group */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 754) if (!nd->reading_mt) /* Just to be sure */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 755) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 756)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 757) nd->reading_mt = false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 758)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 759)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 760) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 761) * Activation state machine logic:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 762) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 763) * Fundamental states:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 764) * state > 0: Inactive
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 765) * state <= 0: Active
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 766) * state < -deactivate_slack:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 767) * Pen termination of touch
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 768) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 769) * Specific values of interest
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 770) * state == activate_slack
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 771) * no valid input since the last reset
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 772) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 773) * state == 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 774) * general operational state
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 775) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 776) * state == -deactivate_slack
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 777) * read sufficient empty frames to accept
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 778) * the end of input and reset
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 779) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 780)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 781) if (nd->act_state > 0) { /* Currently inactive */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 782) if (value)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 783) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 784) * Consider each live contact as
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 785) * evidence of intentional activity.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 786) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 787) nd->act_state = (nd->act_state > value)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 788) ? nd->act_state - value
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 789) : 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 790) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 791) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 792) * Empty frame before we hit the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 793) * activity threshold, reset.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 794) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 795) nd->act_state = nd->activate_slack;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 796)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 797) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 798) * Entered this block inactive and no
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 799) * coordinates sent this frame, so hold off
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 800) * on button state.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 801) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 802) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 803) } else { /* Currently active */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 804) if (value && nd->act_state >=
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 805) nd->deactivate_slack)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 806) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 807) * Live point: clear accumulated
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 808) * deactivation count.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 809) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 810) nd->act_state = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 811) else if (nd->act_state <= nd->deactivate_slack)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 812) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 813) * We've consumed the deactivation
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 814) * slack, time to deactivate and reset.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 815) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 816) nd->act_state =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 817) nd->activate_slack;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 818) else { /* Move towards deactivation */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 819) nd->act_state--;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 820) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 821) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 822) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 823)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 824) if (nd->first_contact_touch && nd->act_state <= 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 825) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 826) * Check to see if we're ready to start
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 827) * emitting touch events.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 828) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 829) * Note: activation slack will decrease over
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 830) * the course of the frame, and it will be
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 831) * inconsistent from the start to the end of
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 832) * the frame. However if the frame starts
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 833) * with slack, first_contact_touch will still
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 834) * be 0 and we will not get to this point.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 835) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 836) input_report_key(input, BTN_TOOL_DOUBLETAP, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 837) input_report_key(input, BTN_TOUCH, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 838) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 839) input_report_key(input, BTN_TOOL_DOUBLETAP, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 840) input_report_key(input, BTN_TOUCH, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 841) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 842) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 843)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 844) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 845) /* fall-back to the generic hidinput handling */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 846) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 847) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 848)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 849) not_claimed_input:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 850)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 851) /* we have handled the hidinput part, now remains hiddev */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 852) if ((hid->claimed & HID_CLAIMED_HIDDEV) && hid->hiddev_hid_event)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 853) hid->hiddev_hid_event(hid, field, usage, value);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 854)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 855) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 856) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 857)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 858) static int ntrig_input_configured(struct hid_device *hid,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 859) struct hid_input *hidinput)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 860)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 861) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 862) struct input_dev *input = hidinput->input;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 863)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 864) if (hidinput->report->maxfield < 1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 865) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 866)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 867) switch (hidinput->report->field[0]->application) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 868) case HID_DG_PEN:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 869) input->name = "N-Trig Pen";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 870) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 871) case HID_DG_TOUCHSCREEN:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 872) /* These keys are redundant for fingers, clear them
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 873) * to prevent incorrect identification */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 874) __clear_bit(BTN_TOOL_PEN, input->keybit);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 875) __clear_bit(BTN_TOOL_FINGER, input->keybit);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 876) __clear_bit(BTN_0, input->keybit);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 877) __set_bit(BTN_TOOL_DOUBLETAP, input->keybit);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 878) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 879) * The physical touchscreen (single touch)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 880) * input has a value for physical, whereas
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 881) * the multitouch only has logical input
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 882) * fields.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 883) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 884) input->name = (hidinput->report->field[0]->physical) ?
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 885) "N-Trig Touchscreen" :
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 886) "N-Trig MultiTouch";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 887) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 888) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 889)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 890) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 891) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 892)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 893) static int ntrig_probe(struct hid_device *hdev, const struct hid_device_id *id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 894) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 895) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 896) struct ntrig_data *nd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 897) struct hid_report *report;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 898)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 899) if (id->driver_data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 900) hdev->quirks |= HID_QUIRK_MULTI_INPUT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 901) | HID_QUIRK_NO_INIT_REPORTS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 902)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 903) nd = kmalloc(sizeof(struct ntrig_data), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 904) if (!nd) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 905) hid_err(hdev, "cannot allocate N-Trig data\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 906) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 907) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 908)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 909) nd->reading_mt = false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 910) nd->min_width = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 911) nd->min_height = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 912) nd->activate_slack = activate_slack;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 913) nd->act_state = activate_slack;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 914) nd->deactivate_slack = -deactivate_slack;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 915) nd->sensor_logical_width = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 916) nd->sensor_logical_height = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 917) nd->sensor_physical_width = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 918) nd->sensor_physical_height = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 919)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 920) hid_set_drvdata(hdev, nd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 921)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 922) ret = hid_parse(hdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 923) if (ret) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 924) hid_err(hdev, "parse failed\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 925) goto err_free;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 926) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 927)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 928) ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT & ~HID_CONNECT_FF);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 929) if (ret) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 930) hid_err(hdev, "hw start failed\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 931) goto err_free;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 932) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 933)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 934) /* This is needed for devices with more recent firmware versions */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 935) report = hdev->report_enum[HID_FEATURE_REPORT].report_id_hash[0x0a];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 936) if (report) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 937) /* Let the device settle to ensure the wakeup message gets
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 938) * through */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 939) hid_hw_wait(hdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 940) hid_hw_request(hdev, report, HID_REQ_GET_REPORT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 941)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 942) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 943) * Sanity check: if the current mode is invalid reset it to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 944) * something reasonable.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 945) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 946) if (ntrig_get_mode(hdev) >= 4)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 947) ntrig_set_mode(hdev, 3);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 948) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 949)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 950) ntrig_report_version(hdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 951)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 952) ret = sysfs_create_group(&hdev->dev.kobj,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 953) &ntrig_attribute_group);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 954) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 955) hid_err(hdev, "cannot create sysfs group\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 956)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 957) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 958) err_free:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 959) kfree(nd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 960) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 961) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 962)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 963) static void ntrig_remove(struct hid_device *hdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 964) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 965) sysfs_remove_group(&hdev->dev.kobj,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 966) &ntrig_attribute_group);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 967) hid_hw_stop(hdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 968) kfree(hid_get_drvdata(hdev));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 969) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 970)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 971) static const struct hid_device_id ntrig_devices[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 972) { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 973) .driver_data = NTRIG_DUPLICATE_USAGES },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 974) { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_1),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 975) .driver_data = NTRIG_DUPLICATE_USAGES },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 976) { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_2),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 977) .driver_data = NTRIG_DUPLICATE_USAGES },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 978) { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_3),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 979) .driver_data = NTRIG_DUPLICATE_USAGES },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 980) { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_4),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 981) .driver_data = NTRIG_DUPLICATE_USAGES },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 982) { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_5),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 983) .driver_data = NTRIG_DUPLICATE_USAGES },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 984) { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_6),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 985) .driver_data = NTRIG_DUPLICATE_USAGES },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 986) { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_7),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 987) .driver_data = NTRIG_DUPLICATE_USAGES },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 988) { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_8),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 989) .driver_data = NTRIG_DUPLICATE_USAGES },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 990) { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_9),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 991) .driver_data = NTRIG_DUPLICATE_USAGES },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 992) { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_10),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 993) .driver_data = NTRIG_DUPLICATE_USAGES },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 994) { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_11),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 995) .driver_data = NTRIG_DUPLICATE_USAGES },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 996) { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_12),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 997) .driver_data = NTRIG_DUPLICATE_USAGES },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 998) { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_13),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 999) .driver_data = NTRIG_DUPLICATE_USAGES },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1000) { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_14),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1001) .driver_data = NTRIG_DUPLICATE_USAGES },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1002) { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_15),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1003) .driver_data = NTRIG_DUPLICATE_USAGES },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1004) { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_16),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1005) .driver_data = NTRIG_DUPLICATE_USAGES },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1006) { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_17),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1007) .driver_data = NTRIG_DUPLICATE_USAGES },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1008) { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_18),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1009) .driver_data = NTRIG_DUPLICATE_USAGES },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1010) { }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1011) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1012) MODULE_DEVICE_TABLE(hid, ntrig_devices);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1013)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1014) static const struct hid_usage_id ntrig_grabbed_usages[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1015) { HID_ANY_ID, HID_ANY_ID, HID_ANY_ID },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1016) { HID_ANY_ID - 1, HID_ANY_ID - 1, HID_ANY_ID - 1 }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1017) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1018)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1019) static struct hid_driver ntrig_driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1020) .name = "ntrig",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1021) .id_table = ntrig_devices,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1022) .probe = ntrig_probe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1023) .remove = ntrig_remove,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1024) .input_mapping = ntrig_input_mapping,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1025) .input_mapped = ntrig_input_mapped,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1026) .input_configured = ntrig_input_configured,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1027) .usage_table = ntrig_grabbed_usages,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1028) .event = ntrig_event,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1029) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1030) module_hid_driver(ntrig_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1031)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1032) MODULE_LICENSE("GPL");
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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