aboutsummaryrefslogtreecommitdiff
path: root/usr.sbin/bluetooth/bthidd/kbd.c
diff options
context:
space:
mode:
Diffstat (limited to 'usr.sbin/bluetooth/bthidd/kbd.c')
-rw-r--r--usr.sbin/bluetooth/bthidd/kbd.c614
1 files changed, 614 insertions, 0 deletions
diff --git a/usr.sbin/bluetooth/bthidd/kbd.c b/usr.sbin/bluetooth/bthidd/kbd.c
new file mode 100644
index 000000000000..51c12d111c37
--- /dev/null
+++ b/usr.sbin/bluetooth/bthidd/kbd.c
@@ -0,0 +1,614 @@
+/*
+ * kbd.c
+ */
+
+/*-
+ * SPDX-License-Identifier: BSD-2-Clause
+ *
+ * Copyright (c) 2006 Maksim Yevmenkin <m_evmenkin@yahoo.com>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $Id: kbd.c,v 1.4 2006/09/07 21:06:53 max Exp $
+ */
+
+#include <sys/consio.h>
+#include <sys/ioctl.h>
+#include <sys/kbio.h>
+#include <sys/param.h>
+#include <sys/queue.h>
+#include <sys/wait.h>
+#include <assert.h>
+#define L2CAP_SOCKET_CHECKED
+#include <bluetooth.h>
+#include <dev/usb/usb.h>
+#include <dev/usb/usbhid.h>
+#include <dev/vkbd/vkbd_var.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <limits.h>
+#include <stdarg.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <syslog.h>
+#include <unistd.h>
+#include <usbhid.h>
+#include "bthid_config.h"
+#include "bthidd.h"
+#include "btuinput.h"
+#include "kbd.h"
+
+static void kbd_write(bitstr_t *m, int32_t fb, int32_t make, int32_t fd);
+static int32_t kbd_xlate(int32_t code, int32_t make, int32_t *b, int32_t const *eob);
+static void uinput_kbd_write(bitstr_t *m, int32_t fb, int32_t make, int32_t fd);
+
+/*
+ * HID code to PS/2 set 1 code translation table.
+ *
+ * http://www.microsoft.com/whdc/device/input/Scancode.mspx
+ *
+ * The table only contains "make" (key pressed) codes.
+ * The "break" (key released) code is generated as "make" | 0x80
+ */
+
+#define E0PREFIX (1U << 31)
+#define NOBREAK (1 << 30)
+#define CODEMASK (~(E0PREFIX|NOBREAK))
+
+static int32_t const x[] =
+{
+/*==================================================*/
+/* Name HID code Make Break*/
+/*==================================================*/
+/* No Event 00 */ -1, /* None */
+/* Overrun Error 01 */ NOBREAK|0xFF, /* None */
+/* POST Fail 02 */ NOBREAK|0xFC, /* None */
+/* ErrorUndefined 03 */ -1, /* Unassigned */
+/* a A 04 */ 0x1E, /* 9E */
+/* b B 05 */ 0x30, /* B0 */
+/* c C 06 */ 0x2E, /* AE */
+/* d D 07 */ 0x20, /* A0 */
+/* e E 08 */ 0x12, /* 92 */
+/* f F 09 */ 0x21, /* A1 */
+/* g G 0A */ 0x22, /* A2 */
+/* h H 0B */ 0x23, /* A3 */
+/* i I 0C */ 0x17, /* 97 */
+/* j J 0D */ 0x24, /* A4 */
+/* k K 0E */ 0x25, /* A5 */
+/* l L 0F */ 0x26, /* A6 */
+/* m M 10 */ 0x32, /* B2 */
+/* n N 11 */ 0x31, /* B1 */
+/* o O 12 */ 0x18, /* 98 */
+/* p P 13 */ 0x19, /* 99 */
+/* q Q 14 */ 0x10, /* 90 */
+/* r R 15 */ 0x13, /* 93 */
+/* s S 16 */ 0x1F, /* 9F */
+/* t T 17 */ 0x14, /* 94 */
+/* u U 18 */ 0x16, /* 96 */
+/* v V 19 */ 0x2F, /* AF */
+/* w W 1A */ 0x11, /* 91 */
+/* x X 1B */ 0x2D, /* AD */
+/* y Y 1C */ 0x15, /* 95 */
+/* z Z 1D */ 0x2C, /* AC */
+/* 1 ! 1E */ 0x02, /* 82 */
+/* 2 @ 1F */ 0x03, /* 83 */
+/* 3 # 20 */ 0x04, /* 84 */
+/* 4 $ 21 */ 0x05, /* 85 */
+/* 5 % 22 */ 0x06, /* 86 */
+/* 6 ^ 23 */ 0x07, /* 87 */
+/* 7 & 24 */ 0x08, /* 88 */
+/* 8 * 25 */ 0x09, /* 89 */
+/* 9 ( 26 */ 0x0A, /* 8A */
+/* 0 ) 27 */ 0x0B, /* 8B */
+/* Return 28 */ 0x1C, /* 9C */
+/* Escape 29 */ 0x01, /* 81 */
+/* Backspace 2A */ 0x0E, /* 8E */
+/* Tab 2B */ 0x0F, /* 8F */
+/* Space 2C */ 0x39, /* B9 */
+/* - _ 2D */ 0x0C, /* 8C */
+/* = + 2E */ 0x0D, /* 8D */
+/* [ { 2F */ 0x1A, /* 9A */
+/* ] } 30 */ 0x1B, /* 9B */
+/* \ | 31 */ 0x2B, /* AB */
+/* Europe 1 32 */ 0x2B, /* AB */
+/* ; : 33 */ 0x27, /* A7 */
+/* " ' 34 */ 0x28, /* A8 */
+/* ` ~ 35 */ 0x29, /* A9 */
+/* comma < 36 */ 0x33, /* B3 */
+/* . > 37 */ 0x34, /* B4 */
+/* / ? 38 */ 0x35, /* B5 */
+/* Caps Lock 39 */ 0x3A, /* BA */
+/* F1 3A */ 0x3B, /* BB */
+/* F2 3B */ 0x3C, /* BC */
+/* F3 3C */ 0x3D, /* BD */
+/* F4 3D */ 0x3E, /* BE */
+/* F5 3E */ 0x3F, /* BF */
+/* F6 3F */ 0x40, /* C0 */
+/* F7 40 */ 0x41, /* C1 */
+/* F8 41 */ 0x42, /* C2 */
+/* F9 42 */ 0x43, /* C3 */
+/* F10 43 */ 0x44, /* C4 */
+/* F11 44 */ 0x57, /* D7 */
+/* F12 45 */ 0x58, /* D8 */
+/* Print Screen 46 */ E0PREFIX|0x37, /* E0 B7 */
+/* Scroll Lock 47 */ 0x46, /* C6 */
+#if 0
+/* Break (Ctrl-Pause) 48 */ E0 46 E0 C6, /* None */
+/* Pause 48 */ E1 1D 45 E1 9D C5, /* None */
+#else
+/* Break (Ctrl-Pause)/Pause 48 */ NOBREAK /* Special case */, /* None */
+#endif
+/* Insert 49 */ E0PREFIX|0x52, /* E0 D2 */
+/* Home 4A */ E0PREFIX|0x47, /* E0 C7 */
+/* Page Up 4B */ E0PREFIX|0x49, /* E0 C9 */
+/* Delete 4C */ E0PREFIX|0x53, /* E0 D3 */
+/* End 4D */ E0PREFIX|0x4F, /* E0 CF */
+/* Page Down 4E */ E0PREFIX|0x51, /* E0 D1 */
+/* Right Arrow 4F */ E0PREFIX|0x4D, /* E0 CD */
+/* Left Arrow 50 */ E0PREFIX|0x4B, /* E0 CB */
+/* Down Arrow 51 */ E0PREFIX|0x50, /* E0 D0 */
+/* Up Arrow 52 */ E0PREFIX|0x48, /* E0 C8 */
+/* Num Lock 53 */ 0x45, /* C5 */
+/* Keypad / 54 */ E0PREFIX|0x35, /* E0 B5 */
+/* Keypad * 55 */ 0x37, /* B7 */
+/* Keypad - 56 */ 0x4A, /* CA */
+/* Keypad + 57 */ 0x4E, /* CE */
+/* Keypad Enter 58 */ E0PREFIX|0x1C, /* E0 9C */
+/* Keypad 1 End 59 */ 0x4F, /* CF */
+/* Keypad 2 Down 5A */ 0x50, /* D0 */
+/* Keypad 3 PageDn 5B */ 0x51, /* D1 */
+/* Keypad 4 Left 5C */ 0x4B, /* CB */
+/* Keypad 5 5D */ 0x4C, /* CC */
+/* Keypad 6 Right 5E */ 0x4D, /* CD */
+/* Keypad 7 Home 5F */ 0x47, /* C7 */
+/* Keypad 8 Up 60 */ 0x48, /* C8 */
+/* Keypad 9 PageUp 61 */ 0x49, /* C9 */
+/* Keypad 0 Insert 62 */ 0x52, /* D2 */
+/* Keypad . Delete 63 */ 0x53, /* D3 */
+/* Europe 2 64 */ 0x56, /* D6 */
+/* App 65 */ E0PREFIX|0x5D, /* E0 DD */
+/* Keyboard Power 66 */ E0PREFIX|0x5E, /* E0 DE */
+/* Keypad = 67 */ 0x59, /* D9 */
+/* F13 68 */ 0x64, /* E4 */
+/* F14 69 */ 0x65, /* E5 */
+/* F15 6A */ 0x66, /* E6 */
+/* F16 6B */ 0x67, /* E7 */
+/* F17 6C */ 0x68, /* E8 */
+/* F18 6D */ 0x69, /* E9 */
+/* F19 6E */ 0x6A, /* EA */
+/* F20 6F */ 0x6B, /* EB */
+/* F21 70 */ 0x6C, /* EC */
+/* F22 71 */ 0x6D, /* ED */
+/* F23 72 */ 0x6E, /* EE */
+/* F24 73 */ 0x76, /* F6 */
+/* Keyboard Execute 74 */ -1, /* Unassigned */
+/* Keyboard Help 75 */ -1, /* Unassigned */
+/* Keyboard Menu 76 */ -1, /* Unassigned */
+/* Keyboard Select 77 */ -1, /* Unassigned */
+/* Keyboard Stop 78 */ -1, /* Unassigned */
+/* Keyboard Again 79 */ -1, /* Unassigned */
+/* Keyboard Undo 7A */ -1, /* Unassigned */
+/* Keyboard Cut 7B */ -1, /* Unassigned */
+/* Keyboard Copy 7C */ -1, /* Unassigned */
+/* Keyboard Paste 7D */ -1, /* Unassigned */
+/* Keyboard Find 7E */ -1, /* Unassigned */
+/* Keyboard Mute 7F */ -1, /* Unassigned */
+/* Keyboard Volume Up 80 */ -1, /* Unassigned */
+/* Keyboard Volume Dn 81 */ -1, /* Unassigned */
+/* Keyboard Locking Caps Lock 82 */ -1, /* Unassigned */
+/* Keyboard Locking Num Lock 83 */ -1, /* Unassigned */
+/* Keyboard Locking Scroll Lock 84 */ -1, /* Unassigned */
+/* Keypad comma 85 */ 0x7E, /* FE */
+/* Keyboard Equal Sign 86 */ -1, /* Unassigned */
+/* Keyboard Int'l 1 87 */ 0x73, /* F3 */
+/* Keyboard Int'l 2 88 */ 0x70, /* F0 */
+/* Keyboard Int'l 2 89 */ 0x7D, /* FD */
+/* Keyboard Int'l 4 8A */ 0x79, /* F9 */
+/* Keyboard Int'l 5 8B */ 0x7B, /* FB */
+/* Keyboard Int'l 6 8C */ 0x5C, /* DC */
+/* Keyboard Int'l 7 8D */ -1, /* Unassigned */
+/* Keyboard Int'l 8 8E */ -1, /* Unassigned */
+/* Keyboard Int'l 9 8F */ -1, /* Unassigned */
+/* Keyboard Lang 1 90 */ 0x71, /* Kana */
+/* Keyboard Lang 2 91 */ 0x72, /* Eisu */
+/* Keyboard Lang 3 92 */ 0x78, /* F8 */
+/* Keyboard Lang 4 93 */ 0x77, /* F7 */
+/* Keyboard Lang 5 94 */ 0x76, /* F6 */
+/* Keyboard Lang 6 95 */ -1, /* Unassigned */
+/* Keyboard Lang 7 96 */ -1, /* Unassigned */
+/* Keyboard Lang 8 97 */ -1, /* Unassigned */
+/* Keyboard Lang 9 98 */ -1, /* Unassigned */
+/* Keyboard Alternate Erase 99 */ -1, /* Unassigned */
+/* Keyboard SysReq/Attention 9A */ -1, /* Unassigned */
+/* Keyboard Cancel 9B */ -1, /* Unassigned */
+/* Keyboard Clear 9C */ -1, /* Unassigned */
+/* Keyboard Prior 9D */ -1, /* Unassigned */
+/* Keyboard Return 9E */ -1, /* Unassigned */
+/* Keyboard Separator 9F */ -1, /* Unassigned */
+/* Keyboard Out A0 */ -1, /* Unassigned */
+/* Keyboard Oper A1 */ -1, /* Unassigned */
+/* Keyboard Clear/Again A2 */ -1, /* Unassigned */
+/* Keyboard CrSel/Props A3 */ -1, /* Unassigned */
+/* Keyboard ExSel A4 */ -1, /* Unassigned */
+/* Reserved A5 */ -1, /* Reserved */
+/* Reserved A6 */ -1, /* Reserved */
+/* Reserved A7 */ -1, /* Reserved */
+/* Reserved A8 */ -1, /* Reserved */
+/* Reserved A9 */ -1, /* Reserved */
+/* Reserved AA */ -1, /* Reserved */
+/* Reserved AB */ -1, /* Reserved */
+/* Reserved AC */ -1, /* Reserved */
+/* Reserved AD */ -1, /* Reserved */
+/* Reserved AE */ -1, /* Reserved */
+/* Reserved AF */ -1, /* Reserved */
+/* Reserved B0 */ -1, /* Reserved */
+/* Reserved B1 */ -1, /* Reserved */
+/* Reserved B2 */ -1, /* Reserved */
+/* Reserved B3 */ -1, /* Reserved */
+/* Reserved B4 */ -1, /* Reserved */
+/* Reserved B5 */ -1, /* Reserved */
+/* Reserved B6 */ -1, /* Reserved */
+/* Reserved B7 */ -1, /* Reserved */
+/* Reserved B8 */ -1, /* Reserved */
+/* Reserved B9 */ -1, /* Reserved */
+/* Reserved BA */ -1, /* Reserved */
+/* Reserved BB */ -1, /* Reserved */
+/* Reserved BC */ -1, /* Reserved */
+/* Reserved BD */ -1, /* Reserved */
+/* Reserved BE */ -1, /* Reserved */
+/* Reserved BF */ -1, /* Reserved */
+/* Reserved C0 */ -1, /* Reserved */
+/* Reserved C1 */ -1, /* Reserved */
+/* Reserved C2 */ -1, /* Reserved */
+/* Reserved C3 */ -1, /* Reserved */
+/* Reserved C4 */ -1, /* Reserved */
+/* Reserved C5 */ -1, /* Reserved */
+/* Reserved C6 */ -1, /* Reserved */
+/* Reserved C7 */ -1, /* Reserved */
+/* Reserved C8 */ -1, /* Reserved */
+/* Reserved C9 */ -1, /* Reserved */
+/* Reserved CA */ -1, /* Reserved */
+/* Reserved CB */ -1, /* Reserved */
+/* Reserved CC */ -1, /* Reserved */
+/* Reserved CD */ -1, /* Reserved */
+/* Reserved CE */ -1, /* Reserved */
+/* Reserved CF */ -1, /* Reserved */
+/* Reserved D0 */ -1, /* Reserved */
+/* Reserved D1 */ -1, /* Reserved */
+/* Reserved D2 */ -1, /* Reserved */
+/* Reserved D3 */ -1, /* Reserved */
+/* Reserved D4 */ -1, /* Reserved */
+/* Reserved D5 */ -1, /* Reserved */
+/* Reserved D6 */ -1, /* Reserved */
+/* Reserved D7 */ -1, /* Reserved */
+/* Reserved D8 */ -1, /* Reserved */
+/* Reserved D9 */ -1, /* Reserved */
+/* Reserved DA */ -1, /* Reserved */
+/* Reserved DB */ -1, /* Reserved */
+/* Reserved DC */ -1, /* Reserved */
+/* Reserved DD */ -1, /* Reserved */
+/* Reserved DE */ -1, /* Reserved */
+/* Reserved DF */ -1, /* Reserved */
+/* Left Control E0 */ 0x1D, /* 9D */
+/* Left Shift E1 */ 0x2A, /* AA */
+/* Left Alt E2 */ 0x38, /* B8 */
+/* Left GUI E3 */ E0PREFIX|0x5B, /* E0 DB */
+/* Right Control E4 */ E0PREFIX|0x1D, /* E0 9D */
+/* Right Shift E5 */ 0x36, /* B6 */
+/* Right Alt E6 */ E0PREFIX|0x38, /* E0 B8 */
+/* Right GUI E7 */ E0PREFIX|0x5C /* E0 DC */
+};
+
+#define xsize (int32_t)nitems(x)
+
+/*
+ * Get a max HID keycode (aligned)
+ */
+
+int32_t
+kbd_maxkey(void)
+{
+ return (xsize);
+}
+
+/*
+ * Process keys
+ */
+
+int32_t
+kbd_process_keys(bthid_session_p s)
+{
+ bitstr_t bit_decl(diff, xsize);
+ int32_t f1, f2, i;
+
+ assert(s != NULL);
+ assert(s->srv != NULL);
+
+ /* Check if the new keys have been pressed */
+ bit_ffs(s->keys1, xsize, &f1);
+
+ /* Check if old keys still pressed */
+ bit_ffs(s->keys2, xsize, &f2);
+
+ if (f1 == -1) {
+ /* no new key pressed */
+ if (f2 != -1) {
+ /* release old keys */
+ kbd_write(s->keys2, f2, 0, s->vkbd);
+ uinput_kbd_write(s->keys2, f2, 0, s->ukbd);
+ memset(s->keys2, 0, bitstr_size(xsize));
+ }
+
+ return (0);
+ }
+
+ if (f2 == -1) {
+ /* no old keys, but new keys pressed */
+ assert(f1 != -1);
+
+ memcpy(s->keys2, s->keys1, bitstr_size(xsize));
+ kbd_write(s->keys1, f1, 1, s->vkbd);
+ uinput_kbd_write(s->keys1, f1, 1, s->ukbd);
+ memset(s->keys1, 0, bitstr_size(xsize));
+
+ return (0);
+ }
+
+ /* new keys got pressed, old keys got released */
+ memset(diff, 0, bitstr_size(xsize));
+
+ for (i = f2; i < xsize; i ++) {
+ if (bit_test(s->keys2, i)) {
+ if (!bit_test(s->keys1, i)) {
+ bit_clear(s->keys2, i);
+ bit_set(diff, i);
+ }
+ }
+ }
+
+ for (i = f1; i < xsize; i++) {
+ if (bit_test(s->keys1, i)) {
+ if (!bit_test(s->keys2, i))
+ bit_set(s->keys2, i);
+ else
+ bit_clear(s->keys1, i);
+ }
+ }
+
+ bit_ffs(diff, xsize, &f2);
+ if (f2 > 0) {
+ kbd_write(diff, f2, 0, s->vkbd);
+ uinput_kbd_write(diff, f2, 0, s->ukbd);
+ }
+
+ bit_ffs(s->keys1, xsize, &f1);
+ if (f1 > 0) {
+ kbd_write(s->keys1, f1, 1, s->vkbd);
+ uinput_kbd_write(s->keys1, f1, 1, s->ukbd);
+ memset(s->keys1, 0, bitstr_size(xsize));
+ }
+
+ return (0);
+}
+
+/*
+ * Translate given keymap and write keyscodes
+ */
+void
+uinput_kbd_write(bitstr_t *m, int32_t fb, int32_t make, int32_t fd)
+{
+ int32_t i;
+
+ if (fd >= 0) {
+ for (i = fb; i < xsize; i++) {
+ if (bit_test(m, i))
+ uinput_rep_key(fd, i, make);
+ }
+ }
+}
+
+/*
+ * Translate given keymap and write keyscodes
+ */
+
+static void
+kbd_write(bitstr_t *m, int32_t fb, int32_t make, int32_t fd)
+{
+ int32_t i, *b, *eob, n, buf[64];
+
+ b = buf;
+ eob = b + nitems(buf);
+ i = fb;
+
+ while (i < xsize) {
+ if (bit_test(m, i)) {
+ n = kbd_xlate(i, make, b, eob);
+ if (n == -1) {
+ write(fd, buf, (b - buf) * sizeof(buf[0]));
+ b = buf;
+ continue;
+ }
+
+ b += n;
+ }
+
+ i ++;
+ }
+
+ if (b != buf)
+ write(fd, buf, (b - buf) * sizeof(buf[0]));
+}
+
+/*
+ * Translate HID code into PS/2 code and put codes into buffer b.
+ * Returns the number of codes put in b. Return -1 if buffer has not
+ * enough space.
+ */
+
+#undef PUT
+#define PUT(c, n, b, eob) \
+do { \
+ if ((b) >= (eob)) \
+ return (-1); \
+ *(b) = (c); \
+ (b) ++; \
+ (n) ++; \
+} while (0)
+
+static int32_t
+kbd_xlate(int32_t code, int32_t make, int32_t *b, int32_t const *eob)
+{
+ int32_t c, n;
+
+ n = 0;
+
+ if (code >= xsize)
+ return (0); /* HID code is not in the table */
+
+ /* Handle special case - Pause/Break */
+ if (code == 0x48) {
+ if (!make)
+ return (0); /* No break code */
+
+#if 0
+XXX FIXME
+ if (ctrl_is_pressed) {
+ /* Break (Ctrl-Pause) */
+ PUT(0xe0, n, b, eob);
+ PUT(0x46, n, b, eob);
+ PUT(0xe0, n, b, eob);
+ PUT(0xc6, n, b, eob);
+ } else {
+ /* Pause */
+ PUT(0xe1, n, b, eob);
+ PUT(0x1d, n, b, eob);
+ PUT(0x45, n, b, eob);
+ PUT(0xe1, n, b, eob);
+ PUT(0x9d, n, b, eob);
+ PUT(0xc5, n, b, eob);
+ }
+#endif
+
+ return (n);
+ }
+
+ if ((c = x[code]) == -1)
+ return (0); /* HID code translation is not defined */
+
+ if (make) {
+ if (c & E0PREFIX)
+ PUT(0xe0, n, b, eob);
+
+ PUT((c & CODEMASK), n, b, eob);
+ } else if (!(c & NOBREAK)) {
+ if (c & E0PREFIX)
+ PUT(0xe0, n, b, eob);
+
+ PUT((0x80|(c & CODEMASK)), n, b, eob);
+ }
+
+ return (n);
+}
+
+/*
+ * Process status change from vkbd(4)
+ */
+
+int32_t
+kbd_status_changed(bthid_session_p s, uint8_t *data, int32_t len)
+{
+ vkbd_status_t st;
+ uint8_t found, report_id;
+ hid_device_p hid_device;
+ hid_data_t d;
+ hid_item_t h;
+ uint8_t leds_mask = 0;
+
+ assert(s != NULL);
+ assert(len == sizeof(vkbd_status_t));
+
+ memcpy(&st, data, sizeof(st));
+ found = 0;
+ report_id = NO_REPORT_ID;
+
+ hid_device = get_hid_device(&s->bdaddr);
+ assert(hid_device != NULL);
+
+ data[0] = 0xa2; /* DATA output (HID output report) */
+ data[1] = 0x00;
+ data[2] = 0x00;
+
+ for (d = hid_start_parse(hid_device->desc, 1 << hid_output, -1);
+ hid_get_item(d, &h) > 0; ) {
+ if (HID_PAGE(h.usage) == HUP_LEDS) {
+ found++;
+
+ if (report_id == NO_REPORT_ID)
+ report_id = h.report_ID;
+ else if (h.report_ID != report_id)
+ syslog(LOG_WARNING, "Output HID report IDs " \
+ "for %s do not match: %d vs. %d. " \
+ "Please report",
+ bt_ntoa(&s->bdaddr, NULL),
+ h.report_ID, report_id);
+
+ switch(HID_USAGE(h.usage)) {
+ case 0x01: /* Num Lock LED */
+ if (st.leds & LED_NUM)
+ hid_set_data(&data[1], &h, 1);
+ leds_mask |= LED_NUM;
+ break;
+
+ case 0x02: /* Caps Lock LED */
+ if (st.leds & LED_CAP)
+ hid_set_data(&data[1], &h, 1);
+ leds_mask |= LED_CAP;
+ break;
+
+ case 0x03: /* Scroll Lock LED */
+ if (st.leds & LED_SCR)
+ hid_set_data(&data[1], &h, 1);
+ leds_mask |= LED_SCR;
+ break;
+
+ /* XXX add other LEDs ? */
+ }
+ }
+ }
+ hid_end_parse(d);
+
+ if (report_id != NO_REPORT_ID) {
+ data[2] = data[1];
+ data[1] = report_id;
+ }
+
+ if (found)
+ write(s->intr, data, (report_id != NO_REPORT_ID) ? 3 : 2);
+
+ if (found && s->srv->uinput && hid_device->keyboard)
+ uinput_rep_leds(s->ukbd, st.leds, leds_mask);
+
+ return (0);
+}
+
generated by cgit v1.2.3 (git 2.25.1) at 2025-10-29 14:20:17 +0000