| /* |
| * $Id: hid-input.c,v 1.2 2002/04/23 00:59:25 rdamazio Exp $ |
| * |
| * Copyright (c) 2000-2001 Vojtech Pavlik |
| * |
| * USB HID to Linux Input mapping |
| */ |
| |
| /* |
| * 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 |
| * |
| * Should you need to contact me, the author, you can do so either by |
| * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail: |
| * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic |
| */ |
| |
| #include <linux/module.h> |
| #include <linux/slab.h> |
| #include <linux/kernel.h> |
| #include <linux/input.h> |
| #include <linux/usb.h> |
| #include <linux/usb_input.h> |
| |
| #undef DEBUG |
| |
| #include "hid.h" |
| |
| #define unk KEY_UNKNOWN |
| |
| static unsigned char hid_keyboard[256] = { |
| 0, 0, 0, 0, 30, 48, 46, 32, 18, 33, 34, 35, 23, 36, 37, 38, |
| 50, 49, 24, 25, 16, 19, 31, 20, 22, 47, 17, 45, 21, 44, 2, 3, |
| 4, 5, 6, 7, 8, 9, 10, 11, 28, 1, 14, 15, 57, 12, 13, 26, |
| 27, 43, 43, 39, 40, 41, 51, 52, 53, 58, 59, 60, 61, 62, 63, 64, |
| 65, 66, 67, 68, 87, 88, 99, 70,119,110,102,104,111,107,109,106, |
| 105,108,103, 69, 98, 55, 74, 78, 96, 79, 80, 81, 75, 76, 77, 71, |
| 72, 73, 82, 83, 86,127,116,117,183,184,185,186,187,188,189,190, |
| 191,192,193,194,134,138,130,132,128,129,131,137,133,135,136,113, |
| 115,114,unk,unk,unk,121,unk, 89, 93,124, 92, 94, 95,unk,unk,unk, |
| 122,123, 90, 91, 85,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk, |
| unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk, |
| unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk, |
| unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk, |
| unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk, |
| 29, 42, 56,125, 97, 54,100,126,164,166,165,163,161,115,114,113, |
| 150,158,159,128,136,177,178,176,142,152,173,140,unk,unk,unk,unk |
| }; |
| |
| static struct { |
| __s32 x; |
| __s32 y; |
| } hid_hat_to_axis[] = {{ 0, 0}, { 0,-1}, { 1,-1}, { 1, 0}, { 1, 1}, { 0, 1}, {-1, 1}, {-1, 0}, {-1,-1}}; |
| |
| #define map_abs(c) do { usage->code = c; usage->type = EV_ABS; bit = input->absbit; max = ABS_MAX; } while (0) |
| #define map_rel(c) do { usage->code = c; usage->type = EV_REL; bit = input->relbit; max = REL_MAX; } while (0) |
| #define map_key(c) do { usage->code = c; usage->type = EV_KEY; bit = input->keybit; max = KEY_MAX; } while (0) |
| #define map_led(c) do { usage->code = c; usage->type = EV_LED; bit = input->ledbit; max = LED_MAX; } while (0) |
| #define map_ff(c) do { usage->code = c; usage->type = EV_FF; bit = input->ffbit; max = FF_MAX; } while (0) |
| |
| #define map_abs_clear(c) do { map_abs(c); clear_bit(c, bit); } while (0) |
| #define map_key_clear(c) do { map_key(c); clear_bit(c, bit); } while (0) |
| #define map_ff_effect(c) do { set_bit(c, input->ffbit); } while (0) |
| |
| static void hidinput_configure_usage(struct hid_input *hidinput, struct hid_field *field, |
| struct hid_usage *usage) |
| { |
| struct input_dev *input = &hidinput->input; |
| struct hid_device *device = hidinput->input.private; |
| int max, code; |
| unsigned long *bit; |
| |
| field->hidinput = hidinput; |
| |
| #ifdef DEBUG |
| printk(KERN_DEBUG "Mapping: "); |
| resolv_usage(usage->hid); |
| printk(" ---> "); |
| #endif |
| |
| if (field->flags & HID_MAIN_ITEM_CONSTANT) |
| goto ignore; |
| |
| switch (usage->hid & HID_USAGE_PAGE) { |
| |
| case HID_UP_UNDEFINED: |
| goto ignore; |
| |
| case HID_UP_KEYBOARD: |
| |
| set_bit(EV_REP, input->evbit); |
| |
| if ((usage->hid & HID_USAGE) < 256) { |
| if (!hid_keyboard[usage->hid & HID_USAGE]) goto ignore; |
| map_key_clear(hid_keyboard[usage->hid & HID_USAGE]); |
| } else |
| map_key(KEY_UNKNOWN); |
| |
| break; |
| |
| case HID_UP_BUTTON: |
| |
| code = ((usage->hid - 1) & 0xf); |
| |
| switch (field->application) { |
| case HID_GD_MOUSE: |
| case HID_GD_POINTER: code += 0x110; break; |
| case HID_GD_JOYSTICK: code += 0x120; break; |
| case HID_GD_GAMEPAD: code += 0x130; break; |
| default: |
| switch (field->physical) { |
| case HID_GD_MOUSE: |
| case HID_GD_POINTER: code += 0x110; break; |
| case HID_GD_JOYSTICK: code += 0x120; break; |
| case HID_GD_GAMEPAD: code += 0x130; break; |
| default: code += 0x100; |
| } |
| } |
| |
| map_key(code); |
| break; |
| |
| case HID_UP_GENDESK: |
| |
| if ((usage->hid & 0xf0) == 0x80) { /* SystemControl */ |
| switch (usage->hid & 0xf) { |
| case 0x1: map_key_clear(KEY_POWER); break; |
| case 0x2: map_key_clear(KEY_SLEEP); break; |
| case 0x3: map_key_clear(KEY_WAKEUP); break; |
| default: goto unknown; |
| } |
| break; |
| } |
| |
| if ((usage->hid & 0xf0) == 0x90) { /* D-pad */ |
| switch (usage->hid) { |
| case HID_GD_UP: usage->hat_dir = 1; break; |
| case HID_GD_DOWN: usage->hat_dir = 5; break; |
| case HID_GD_RIGHT: usage->hat_dir = 3; break; |
| case HID_GD_LEFT: usage->hat_dir = 7; break; |
| default: goto unknown; |
| } |
| if (field->dpad) { |
| map_abs(field->dpad); |
| goto ignore; |
| } |
| map_abs(ABS_HAT0X); |
| break; |
| } |
| |
| switch (usage->hid) { |
| |
| /* These usage IDs map directly to the usage codes. */ |
| case HID_GD_X: case HID_GD_Y: case HID_GD_Z: |
| case HID_GD_RX: case HID_GD_RY: case HID_GD_RZ: |
| case HID_GD_SLIDER: case HID_GD_DIAL: case HID_GD_WHEEL: |
| if (field->flags & HID_MAIN_ITEM_RELATIVE) |
| map_rel(usage->hid & 0xf); |
| else |
| map_abs(usage->hid & 0xf); |
| break; |
| |
| case HID_GD_HATSWITCH: |
| usage->hat_min = field->logical_minimum; |
| usage->hat_max = field->logical_maximum; |
| map_abs(ABS_HAT0X); |
| break; |
| |
| case HID_GD_START: map_key_clear(BTN_START); break; |
| case HID_GD_SELECT: map_key_clear(BTN_SELECT); break; |
| |
| default: goto unknown; |
| } |
| |
| break; |
| |
| case HID_UP_LED: |
| if (((usage->hid - 1) & 0xffff) >= LED_MAX) |
| goto ignore; |
| map_led((usage->hid - 1) & 0xffff); |
| break; |
| |
| case HID_UP_DIGITIZER: |
| |
| switch (usage->hid & 0xff) { |
| |
| case 0x30: /* TipPressure */ |
| if (!test_bit(BTN_TOUCH, input->keybit)) { |
| device->quirks |= HID_QUIRK_NOTOUCH; |
| set_bit(EV_KEY, input->evbit); |
| set_bit(BTN_TOUCH, input->keybit); |
| } |
| |
| map_abs_clear(ABS_PRESSURE); |
| break; |
| |
| case 0x32: /* InRange */ |
| switch (field->physical & 0xff) { |
| case 0x21: map_key(BTN_TOOL_MOUSE); break; |
| case 0x22: map_key(BTN_TOOL_FINGER); break; |
| default: map_key(BTN_TOOL_PEN); break; |
| } |
| break; |
| |
| case 0x3c: /* Invert */ |
| map_key_clear(BTN_TOOL_RUBBER); |
| break; |
| |
| case 0x33: /* Touch */ |
| case 0x42: /* TipSwitch */ |
| case 0x43: /* TipSwitch2 */ |
| device->quirks &= ~HID_QUIRK_NOTOUCH; |
| map_key_clear(BTN_TOUCH); |
| break; |
| |
| case 0x44: /* BarrelSwitch */ |
| map_key_clear(BTN_STYLUS); |
| break; |
| |
| default: goto unknown; |
| } |
| break; |
| |
| case HID_UP_CONSUMER: /* USB HUT v1.1, pages 56-62 */ |
| |
| switch (usage->hid & HID_USAGE) { |
| case 0x000: goto ignore; |
| case 0x034: map_key_clear(KEY_SLEEP); break; |
| case 0x036: map_key_clear(BTN_MISC); break; |
| case 0x08a: map_key_clear(KEY_WWW); break; |
| case 0x095: map_key_clear(KEY_HELP); break; |
| case 0x0b0: map_key_clear(KEY_PLAY); break; |
| case 0x0b1: map_key_clear(KEY_PAUSE); break; |
| case 0x0b2: map_key_clear(KEY_RECORD); break; |
| case 0x0b3: map_key_clear(KEY_FASTFORWARD); break; |
| case 0x0b4: map_key_clear(KEY_REWIND); break; |
| case 0x0b5: map_key_clear(KEY_NEXTSONG); break; |
| case 0x0b6: map_key_clear(KEY_PREVIOUSSONG); break; |
| case 0x0b7: map_key_clear(KEY_STOPCD); break; |
| case 0x0b8: map_key_clear(KEY_EJECTCD); break; |
| case 0x0cd: map_key_clear(KEY_PLAYPAUSE); break; |
| case 0x0e0: map_abs_clear(ABS_VOLUME); break; |
| case 0x0e2: map_key_clear(KEY_MUTE); break; |
| case 0x0e5: map_key_clear(KEY_BASSBOOST); break; |
| case 0x0e9: map_key_clear(KEY_VOLUMEUP); break; |
| case 0x0ea: map_key_clear(KEY_VOLUMEDOWN); break; |
| case 0x183: map_key_clear(KEY_CONFIG); break; |
| case 0x18a: map_key_clear(KEY_MAIL); break; |
| case 0x192: map_key_clear(KEY_CALC); break; |
| case 0x194: map_key_clear(KEY_FILE); break; |
| case 0x21a: map_key_clear(KEY_UNDO); break; |
| case 0x21b: map_key_clear(KEY_COPY); break; |
| case 0x21c: map_key_clear(KEY_CUT); break; |
| case 0x21d: map_key_clear(KEY_PASTE); break; |
| case 0x221: map_key_clear(KEY_FIND); break; |
| case 0x223: map_key_clear(KEY_HOMEPAGE); break; |
| case 0x224: map_key_clear(KEY_BACK); break; |
| case 0x225: map_key_clear(KEY_FORWARD); break; |
| case 0x226: map_key_clear(KEY_STOP); break; |
| case 0x227: map_key_clear(KEY_REFRESH); break; |
| case 0x22a: map_key_clear(KEY_BOOKMARKS); break; |
| case 0x238: map_rel(REL_HWHEEL); break; |
| default: goto unknown; |
| } |
| break; |
| |
| case HID_UP_HPVENDOR: /* Reported on a Dutch layout HP5308 */ |
| |
| set_bit(EV_REP, input->evbit); |
| switch (usage->hid & HID_USAGE) { |
| case 0x021: map_key_clear(KEY_PRINT); break; |
| case 0x070: map_key_clear(KEY_HP); break; |
| case 0x071: map_key_clear(KEY_CAMERA); break; |
| case 0x072: map_key_clear(KEY_SOUND); break; |
| case 0x073: map_key_clear(KEY_QUESTION); break; |
| case 0x080: map_key_clear(KEY_EMAIL); break; |
| case 0x081: map_key_clear(KEY_CHAT); break; |
| case 0x082: map_key_clear(KEY_SEARCH); break; |
| case 0x083: map_key_clear(KEY_CONNECT); break; |
| case 0x084: map_key_clear(KEY_FINANCE); break; |
| case 0x085: map_key_clear(KEY_SPORT); break; |
| case 0x086: map_key_clear(KEY_SHOP); break; |
| default: goto ignore; |
| } |
| break; |
| |
| case HID_UP_MSVENDOR: |
| case HID_UP_LOGIVENDOR: |
| |
| goto ignore; |
| |
| case HID_UP_PID: |
| |
| set_bit(EV_FF, input->evbit); |
| switch(usage->hid & HID_USAGE) { |
| case 0x26: map_ff_effect(FF_CONSTANT); goto ignore; |
| case 0x27: map_ff_effect(FF_RAMP); goto ignore; |
| case 0x28: map_ff_effect(FF_CUSTOM); goto ignore; |
| case 0x30: map_ff_effect(FF_SQUARE); map_ff_effect(FF_PERIODIC); goto ignore; |
| case 0x31: map_ff_effect(FF_SINE); map_ff_effect(FF_PERIODIC); goto ignore; |
| case 0x32: map_ff_effect(FF_TRIANGLE); map_ff_effect(FF_PERIODIC); goto ignore; |
| case 0x33: map_ff_effect(FF_SAW_UP); map_ff_effect(FF_PERIODIC); goto ignore; |
| case 0x34: map_ff_effect(FF_SAW_DOWN); map_ff_effect(FF_PERIODIC); goto ignore; |
| case 0x40: map_ff_effect(FF_SPRING); goto ignore; |
| case 0x41: map_ff_effect(FF_DAMPER); goto ignore; |
| case 0x42: map_ff_effect(FF_INERTIA); goto ignore; |
| case 0x43: map_ff_effect(FF_FRICTION); goto ignore; |
| case 0x7e: map_ff(FF_GAIN); break; |
| case 0x83: input->ff_effects_max = field->value[0]; goto ignore; |
| case 0x98: map_ff(FF_AUTOCENTER); break; |
| case 0xa4: map_key_clear(BTN_DEAD); break; |
| default: goto ignore; |
| } |
| break; |
| |
| default: |
| unknown: |
| if (field->report_size == 1) { |
| if (field->report->type == HID_OUTPUT_REPORT) { |
| map_led(LED_MISC); |
| break; |
| } |
| map_key(BTN_MISC); |
| break; |
| } |
| if (field->flags & HID_MAIN_ITEM_RELATIVE) { |
| map_rel(REL_MISC); |
| break; |
| } |
| map_abs(ABS_MISC); |
| break; |
| } |
| |
| set_bit(usage->type, input->evbit); |
| |
| while (usage->code <= max && test_and_set_bit(usage->code, bit)) |
| usage->code = find_next_zero_bit(bit, max + 1, usage->code); |
| |
| if (usage->code > max) |
| goto ignore; |
| |
| if ((device->quirks & (HID_QUIRK_2WHEEL_MOUSE_HACK_7 | HID_QUIRK_2WHEEL_MOUSE_HACK_5)) && |
| (usage->type == EV_REL) && (usage->code == REL_WHEEL)) |
| set_bit(REL_HWHEEL, bit); |
| |
| if (((device->quirks & HID_QUIRK_2WHEEL_MOUSE_HACK_5) && (usage->hid == 0x00090005)) |
| || ((device->quirks & HID_QUIRK_2WHEEL_MOUSE_HACK_7) && (usage->hid == 0x00090007))) |
| goto ignore; |
| |
| if (usage->type == EV_ABS) { |
| |
| int a = field->logical_minimum; |
| int b = field->logical_maximum; |
| |
| if ((device->quirks & HID_QUIRK_BADPAD) && (usage->code == ABS_X || usage->code == ABS_Y)) { |
| a = field->logical_minimum = 0; |
| b = field->logical_maximum = 255; |
| } |
| |
| if (field->application == HID_GD_GAMEPAD || field->application == HID_GD_JOYSTICK) |
| input_set_abs_params(input, usage->code, a, b, (b - a) >> 8, (b - a) >> 4); |
| else input_set_abs_params(input, usage->code, a, b, 0, 0); |
| |
| } |
| |
| if (usage->hat_min < usage->hat_max || usage->hat_dir) { |
| int i; |
| for (i = usage->code; i < usage->code + 2 && i <= max; i++) { |
| input_set_abs_params(input, i, -1, 1, 0, 0); |
| set_bit(i, input->absbit); |
| } |
| if (usage->hat_dir && !field->dpad) |
| field->dpad = usage->code; |
| } |
| |
| #ifdef DEBUG |
| resolv_event(usage->type, usage->code); |
| printk("\n"); |
| #endif |
| return; |
| |
| ignore: |
| #ifdef DEBUG |
| printk("IGNORED\n"); |
| #endif |
| return; |
| } |
| |
| void hidinput_hid_event(struct hid_device *hid, struct hid_field *field, struct hid_usage *usage, __s32 value, struct pt_regs *regs) |
| { |
| struct input_dev *input; |
| int *quirks = &hid->quirks; |
| |
| if (!field->hidinput) |
| return; |
| input = &field->hidinput->input; |
| |
| input_regs(input, regs); |
| |
| if (!usage->type) |
| return; |
| |
| if (((hid->quirks & HID_QUIRK_2WHEEL_MOUSE_HACK_5) && (usage->hid == 0x00090005)) |
| || ((hid->quirks & HID_QUIRK_2WHEEL_MOUSE_HACK_7) && (usage->hid == 0x00090007))) { |
| if (value) hid->quirks |= HID_QUIRK_2WHEEL_MOUSE_HACK_ON; |
| else hid->quirks &= ~HID_QUIRK_2WHEEL_MOUSE_HACK_ON; |
| return; |
| } |
| |
| if ((hid->quirks & HID_QUIRK_2WHEEL_MOUSE_HACK_ON) && (usage->code == REL_WHEEL)) { |
| input_event(input, usage->type, REL_HWHEEL, value); |
| return; |
| } |
| |
| if (usage->hat_min < usage->hat_max || usage->hat_dir) { |
| int hat_dir = usage->hat_dir; |
| if (!hat_dir) |
| hat_dir = (value - usage->hat_min) * 8 / (usage->hat_max - usage->hat_min + 1) + 1; |
| if (hat_dir < 0 || hat_dir > 8) hat_dir = 0; |
| input_event(input, usage->type, usage->code , hid_hat_to_axis[hat_dir].x); |
| input_event(input, usage->type, usage->code + 1, hid_hat_to_axis[hat_dir].y); |
| return; |
| } |
| |
| if (usage->hid == (HID_UP_DIGITIZER | 0x003c)) { /* Invert */ |
| *quirks = value ? (*quirks | HID_QUIRK_INVERT) : (*quirks & ~HID_QUIRK_INVERT); |
| return; |
| } |
| |
| if (usage->hid == (HID_UP_DIGITIZER | 0x0032)) { /* InRange */ |
| if (value) { |
| input_event(input, usage->type, (*quirks & HID_QUIRK_INVERT) ? BTN_TOOL_RUBBER : usage->code, 1); |
| return; |
| } |
| input_event(input, usage->type, usage->code, 0); |
| input_event(input, usage->type, BTN_TOOL_RUBBER, 0); |
| return; |
| } |
| |
| if (usage->hid == (HID_UP_DIGITIZER | 0x0030) && (*quirks & HID_QUIRK_NOTOUCH)) { /* Pressure */ |
| int a = field->logical_minimum; |
| int b = field->logical_maximum; |
| input_event(input, EV_KEY, BTN_TOUCH, value > a + ((b - a) >> 3)); |
| } |
| |
| if (usage->hid == (HID_UP_PID | 0x83UL)) { /* Simultaneous Effects Max */ |
| input->ff_effects_max = value; |
| dbg("Maximum Effects - %d",input->ff_effects_max); |
| return; |
| } |
| |
| if (usage->hid == (HID_UP_PID | 0x7fUL)) { |
| dbg("PID Pool Report\n"); |
| return; |
| } |
| |
| if((usage->type == EV_KEY) && (usage->code == 0)) /* Key 0 is "unassigned", not KEY_UNKNOWN */ |
| return; |
| |
| input_event(input, usage->type, usage->code, value); |
| |
| if ((field->flags & HID_MAIN_ITEM_RELATIVE) && (usage->type == EV_KEY)) |
| input_event(input, usage->type, usage->code, 0); |
| } |
| |
| void hidinput_report_event(struct hid_device *hid, struct hid_report *report) |
| { |
| struct list_head *lh; |
| struct hid_input *hidinput; |
| |
| list_for_each (lh, &hid->inputs) { |
| hidinput = list_entry(lh, struct hid_input, list); |
| input_sync(&hidinput->input); |
| } |
| } |
| |
| static int hidinput_find_field(struct hid_device *hid, unsigned int type, unsigned int code, struct hid_field **field) |
| { |
| struct hid_report *report; |
| int i, j; |
| |
| list_for_each_entry(report, &hid->report_enum[HID_OUTPUT_REPORT].report_list, list) { |
| for (i = 0; i < report->maxfield; i++) { |
| *field = report->field[i]; |
| for (j = 0; j < (*field)->maxusage; j++) |
| if ((*field)->usage[j].type == type && (*field)->usage[j].code == code) |
| return j; |
| } |
| } |
| return -1; |
| } |
| |
| static int hidinput_input_event(struct input_dev *dev, unsigned int type, unsigned int code, int value) |
| { |
| struct hid_device *hid = dev->private; |
| struct hid_field *field; |
| int offset; |
| |
| if (type == EV_FF) |
| return hid_ff_event(hid, dev, type, code, value); |
| |
| if (type != EV_LED) |
| return -1; |
| |
| if ((offset = hidinput_find_field(hid, type, code, &field)) == -1) { |
| warn("event field not found"); |
| return -1; |
| } |
| |
| hid_set_field(field, offset, value); |
| hid_submit_report(hid, field->report, USB_DIR_OUT); |
| |
| return 0; |
| } |
| |
| static int hidinput_open(struct input_dev *dev) |
| { |
| struct hid_device *hid = dev->private; |
| return hid_open(hid); |
| } |
| |
| static void hidinput_close(struct input_dev *dev) |
| { |
| struct hid_device *hid = dev->private; |
| hid_close(hid); |
| } |
| |
| /* |
| * Register the input device; print a message. |
| * Configure the input layer interface |
| * Read all reports and initialize the absolute field values. |
| */ |
| |
| int hidinput_connect(struct hid_device *hid) |
| { |
| struct usb_device *dev = hid->dev; |
| struct hid_report *report; |
| struct hid_input *hidinput = NULL; |
| int i, j, k; |
| |
| INIT_LIST_HEAD(&hid->inputs); |
| |
| for (i = 0; i < hid->maxcollection; i++) |
| if (hid->collection[i].type == HID_COLLECTION_APPLICATION || |
| hid->collection[i].type == HID_COLLECTION_PHYSICAL) |
| if (IS_INPUT_APPLICATION(hid->collection[i].usage)) |
| break; |
| |
| if (i == hid->maxcollection) |
| return -1; |
| |
| for (k = HID_INPUT_REPORT; k <= HID_OUTPUT_REPORT; k++) |
| list_for_each_entry(report, &hid->report_enum[k].report_list, list) { |
| |
| if (!report->maxfield) |
| continue; |
| |
| if (!hidinput) { |
| hidinput = kmalloc(sizeof(*hidinput), GFP_KERNEL); |
| if (!hidinput) { |
| err("Out of memory during hid input probe"); |
| return -1; |
| } |
| memset(hidinput, 0, sizeof(*hidinput)); |
| |
| list_add_tail(&hidinput->list, &hid->inputs); |
| |
| hidinput->input.private = hid; |
| hidinput->input.event = hidinput_input_event; |
| hidinput->input.open = hidinput_open; |
| hidinput->input.close = hidinput_close; |
| |
| hidinput->input.name = hid->name; |
| hidinput->input.phys = hid->phys; |
| hidinput->input.uniq = hid->uniq; |
| usb_to_input_id(dev, &hidinput->input.id); |
| hidinput->input.dev = &hid->intf->dev; |
| } |
| |
| for (i = 0; i < report->maxfield; i++) |
| for (j = 0; j < report->field[i]->maxusage; j++) |
| hidinput_configure_usage(hidinput, report->field[i], |
| report->field[i]->usage + j); |
| |
| if (hid->quirks & HID_QUIRK_MULTI_INPUT) { |
| /* This will leave hidinput NULL, so that it |
| * allocates another one if we have more inputs on |
| * the same interface. Some devices (e.g. Happ's |
| * UGCI) cram a lot of unrelated inputs into the |
| * same interface. */ |
| hidinput->report = report; |
| input_register_device(&hidinput->input); |
| hidinput = NULL; |
| } |
| } |
| |
| /* This only gets called when we are a single-input (most of the |
| * time). IOW, not a HID_QUIRK_MULTI_INPUT. The hid_ff_init() is |
| * only useful in this case, and not for multi-input quirks. */ |
| if (hidinput) { |
| hid_ff_init(hid); |
| input_register_device(&hidinput->input); |
| } |
| |
| return 0; |
| } |
| |
| void hidinput_disconnect(struct hid_device *hid) |
| { |
| struct list_head *lh, *next; |
| struct hid_input *hidinput; |
| |
| list_for_each_safe(lh, next, &hid->inputs) { |
| hidinput = list_entry(lh, struct hid_input, list); |
| input_unregister_device(&hidinput->input); |
| list_del(&hidinput->list); |
| kfree(hidinput); |
| } |
| } |