^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) * SEGA Dreamcast keyboard driver
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) * Based on drivers/usb/usbkbd.c
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Copyright (c) YAEGASHI Takeshi, 2001
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) * Porting to 2.6 Copyright (c) Adrian McMenamin, 2007 - 2009
^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) #include <linux/kernel.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include <linux/input.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <linux/init.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <linux/timer.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <linux/maple.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) /* Very simple mutex to ensure proper cleanup */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) static DEFINE_MUTEX(maple_keyb_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) #define NR_SCANCODES 256
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) MODULE_AUTHOR("Adrian McMenamin <adrian@mcmen.demon.co.uk");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) MODULE_DESCRIPTION("SEGA Dreamcast keyboard driver");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) MODULE_LICENSE("GPL");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) struct dc_kbd {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) struct input_dev *dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) unsigned short keycode[NR_SCANCODES];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) unsigned char new[8];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) unsigned char old[8];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) static const unsigned short dc_kbd_keycode[NR_SCANCODES] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_A, KEY_B,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) KEY_C, KEY_D, KEY_E, KEY_F, KEY_G, KEY_H, KEY_I, KEY_J, KEY_K, KEY_L,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) KEY_M, KEY_N, KEY_O, KEY_P, KEY_Q, KEY_R, KEY_S, KEY_T, KEY_U, KEY_V,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) KEY_W, KEY_X, KEY_Y, KEY_Z, KEY_1, KEY_2, KEY_3, KEY_4, KEY_5, KEY_6,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) KEY_7, KEY_8, KEY_9, KEY_0, KEY_ENTER, KEY_ESC, KEY_BACKSPACE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) KEY_TAB, KEY_SPACE, KEY_MINUS, KEY_EQUAL, KEY_LEFTBRACE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) KEY_RIGHTBRACE, KEY_BACKSLASH, KEY_BACKSLASH, KEY_SEMICOLON,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) KEY_APOSTROPHE, KEY_GRAVE, KEY_COMMA, KEY_DOT, KEY_SLASH,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) KEY_CAPSLOCK, KEY_F1, KEY_F2, KEY_F3, KEY_F4, KEY_F5, KEY_F6,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) KEY_F7, KEY_F8, KEY_F9, KEY_F10, KEY_F11, KEY_F12, KEY_SYSRQ,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) KEY_SCROLLLOCK, KEY_PAUSE, KEY_INSERT, KEY_HOME, KEY_PAGEUP,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) KEY_DELETE, KEY_END, KEY_PAGEDOWN, KEY_RIGHT, KEY_LEFT, KEY_DOWN,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) KEY_UP, KEY_NUMLOCK, KEY_KPSLASH, KEY_KPASTERISK, KEY_KPMINUS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) KEY_KPPLUS, KEY_KPENTER, KEY_KP1, KEY_KP2, KEY_KP3, KEY_KP4, KEY_KP5,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) KEY_KP6, KEY_KP7, KEY_KP8, KEY_KP9, KEY_KP0, KEY_KPDOT, KEY_102ND,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) KEY_COMPOSE, KEY_POWER, KEY_KPEQUAL, KEY_F13, KEY_F14, KEY_F15,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) KEY_F16, KEY_F17, KEY_F18, KEY_F19, KEY_F20, KEY_F21, KEY_F22,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) KEY_F23, KEY_F24, KEY_OPEN, KEY_HELP, KEY_PROPS, KEY_FRONT, KEY_STOP,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) KEY_AGAIN, KEY_UNDO, KEY_CUT, KEY_COPY, KEY_PASTE, KEY_FIND, KEY_MUTE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) KEY_VOLUMEUP, KEY_VOLUMEDOWN, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) KEY_KPCOMMA, KEY_RESERVED, KEY_RO, KEY_KATAKANAHIRAGANA , KEY_YEN,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) KEY_HENKAN, KEY_MUHENKAN, KEY_KPJPCOMMA, KEY_RESERVED, KEY_RESERVED,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) KEY_RESERVED, KEY_HANGEUL, KEY_HANJA, KEY_KATAKANA, KEY_HIRAGANA,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) KEY_ZENKAKUHANKAKU, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) KEY_RESERVED, KEY_RESERVED, KEY_LEFTCTRL, KEY_LEFTSHIFT, KEY_LEFTALT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) KEY_LEFTMETA, KEY_RIGHTCTRL, KEY_RIGHTSHIFT, KEY_RIGHTALT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) KEY_RIGHTMETA, KEY_PLAYPAUSE, KEY_STOPCD, KEY_PREVIOUSSONG,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) KEY_NEXTSONG, KEY_EJECTCD, KEY_VOLUMEUP, KEY_VOLUMEDOWN, KEY_MUTE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) KEY_WWW, KEY_BACK, KEY_FORWARD, KEY_STOP, KEY_FIND, KEY_SCROLLUP,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) KEY_SCROLLDOWN, KEY_EDIT, KEY_SLEEP, KEY_SCREENLOCK, KEY_REFRESH,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) KEY_CALC, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) static void dc_scan_kbd(struct dc_kbd *kbd)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) struct input_dev *dev = kbd->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) void *ptr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) int code, keycode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) for (i = 0; i < 8; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) code = i + 224;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) keycode = kbd->keycode[code];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) input_event(dev, EV_MSC, MSC_SCAN, code);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) input_report_key(dev, keycode, (kbd->new[0] >> i) & 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) for (i = 2; i < 8; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) ptr = memchr(kbd->new + 2, kbd->old[i], 6);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) code = kbd->old[i];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) if (code > 3 && ptr == NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) keycode = kbd->keycode[code];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) if (keycode) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) input_event(dev, EV_MSC, MSC_SCAN, code);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) input_report_key(dev, keycode, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) } else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) dev_dbg(&dev->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) "Unknown key (scancode %#x) released.",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) code);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) ptr = memchr(kbd->old + 2, kbd->new[i], 6);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) code = kbd->new[i];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) if (code > 3 && ptr) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) keycode = kbd->keycode[code];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) if (keycode) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) input_event(dev, EV_MSC, MSC_SCAN, code);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) input_report_key(dev, keycode, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) } else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) dev_dbg(&dev->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) "Unknown key (scancode %#x) pressed.",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) code);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) input_sync(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) memcpy(kbd->old, kbd->new, 8);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) static void dc_kbd_callback(struct mapleq *mq)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) struct maple_device *mapledev = mq->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) struct dc_kbd *kbd = maple_get_drvdata(mapledev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) unsigned long *buf = (unsigned long *)(mq->recvbuf->buf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) * We should always get the lock because the only
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) * time it may be locked is if the driver is in the cleanup phase.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) if (likely(mutex_trylock(&maple_keyb_mutex))) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) if (buf[1] == mapledev->function) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) memcpy(kbd->new, buf + 2, 8);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) dc_scan_kbd(kbd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) mutex_unlock(&maple_keyb_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) static int probe_maple_kbd(struct device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) struct maple_device *mdev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) struct maple_driver *mdrv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) int i, error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) struct dc_kbd *kbd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) struct input_dev *idev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) mdev = to_maple_dev(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) mdrv = to_maple_driver(dev->driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) kbd = kzalloc(sizeof(struct dc_kbd), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) if (!kbd) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) error = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) goto fail;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) idev = input_allocate_device();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) if (!idev) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) error = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) goto fail_idev_alloc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) kbd->dev = idev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) memcpy(kbd->keycode, dc_kbd_keycode, sizeof(kbd->keycode));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) idev->name = mdev->product_name;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) idev->evbit[0] = BIT(EV_KEY) | BIT(EV_REP);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) idev->keycode = kbd->keycode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) idev->keycodesize = sizeof(unsigned short);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) idev->keycodemax = ARRAY_SIZE(kbd->keycode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) idev->id.bustype = BUS_HOST;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) idev->dev.parent = &mdev->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) for (i = 0; i < NR_SCANCODES; i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) __set_bit(dc_kbd_keycode[i], idev->keybit);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) __clear_bit(KEY_RESERVED, idev->keybit);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) input_set_capability(idev, EV_MSC, MSC_SCAN);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) error = input_register_device(idev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) goto fail_register;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) /* Maple polling is locked to VBLANK - which may be just 50/s */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) maple_getcond_callback(mdev, dc_kbd_callback, HZ/50,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) MAPLE_FUNC_KEYBOARD);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) mdev->driver = mdrv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) maple_set_drvdata(mdev, kbd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) fail_register:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) maple_set_drvdata(mdev, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) input_free_device(idev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) fail_idev_alloc:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) kfree(kbd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) fail:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) static int remove_maple_kbd(struct device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) struct maple_device *mdev = to_maple_dev(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) struct dc_kbd *kbd = maple_get_drvdata(mdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) mutex_lock(&maple_keyb_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) input_unregister_device(kbd->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) kfree(kbd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) maple_set_drvdata(mdev, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) mutex_unlock(&maple_keyb_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) static struct maple_driver dc_kbd_driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) .function = MAPLE_FUNC_KEYBOARD,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) .drv = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) .name = "Dreamcast_keyboard",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) .probe = probe_maple_kbd,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) .remove = remove_maple_kbd,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) static int __init dc_kbd_init(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) return maple_driver_register(&dc_kbd_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) static void __exit dc_kbd_exit(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) maple_driver_unregister(&dc_kbd_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) module_init(dc_kbd_init);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) module_exit(dc_kbd_exit);
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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