qmk-firmware/tmk_core/common/report.c
James Laird-Wah 39bd760faf Use a single endpoint for HID reports (#3951)
* Unify multiple HID interfaces into one

This reduces the number of USB endpoints required, which frees them up
for other things.

NKRO and EXTRAKEY always use the shared endpoint.

By default, MOUSEKEY also uses it. This means it won't work as a Boot
Procotol mouse in some BIOSes, etc. If you really think your
keyboard needs to work as a mouse in your BIOS, set
MOUSE_SHARED_EP = no in your rules.mk.

By default, the core keyboard does not use the shared endpoint, as not
all BIOSes are standards compliant and that's one place you don't want
to find out your keyboard doesn't work.. If you are really confident,
you can set KEYBOARD_SHARED_EP = yes to use the shared endpoint here
too.

* unify endpoints: ChibiOS protocol implementation

* fixup: missing #ifdef EXTRAKEY_ENABLEs

broke build on AVR with EXTRAKEY disabled

* endpoints: restore error when too many endpoints required

* lufa: wait up to 10ms to send keyboard input

This avoids packets being dropped when two reports are sent in quick
succession (eg. releasing a dual role key).

* endpoints: fix compile on ARM_ATSAM

* endpoint: ARM_ATSAM fixes

No longer use wrong or unexpected endpoint IDs

* endpoints: accommodate VUSB protocol

V-USB has its own, understandably simple ideas about the report formats.
It already blasts the mouse and extrakeys through one endpoint with
report IDs. We just stay out of its way.

* endpoints: document new endpoint configuration options

* endpoints: respect keyboard_report->mods in NKRO

The caller(s) of host_keyboard_send expect to be able to just drop
modifiers in the mods field and not worry about whether NKRO is in use.
This is a good thing. So we just shift it over if needs be.

* endpoints: report.c: update for new keyboard_report format
2018-11-15 22:22:05 -08:00

257 lines
6.6 KiB
C

/* Copyright 2017 Fred Sundvik
*
* 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, see <http://www.gnu.org/licenses/>.
*/
#include "report.h"
#include "host.h"
#include "keycode_config.h"
#include "debug.h"
#include "util.h"
#include <string.h>
/** \brief has_anykey
*
* FIXME: Needs doc
*/
uint8_t has_anykey(report_keyboard_t* keyboard_report)
{
uint8_t cnt = 0;
uint8_t *p = keyboard_report->keys;
uint8_t lp = sizeof(keyboard_report->keys);
#ifdef NKRO_ENABLE
if (keyboard_protocol && keymap_config.nkro) {
p = keyboard_report->nkro.bits;
lp = sizeof(keyboard_report->nkro.bits);
}
#endif
while (lp--) {
if (*p++)
cnt++;
}
return cnt;
}
/** \brief get_first_key
*
* FIXME: Needs doc
*/
uint8_t get_first_key(report_keyboard_t* keyboard_report)
{
#ifdef NKRO_ENABLE
if (keyboard_protocol && keymap_config.nkro) {
uint8_t i = 0;
for (; i < KEYBOARD_REPORT_BITS && !keyboard_report->nkro.bits[i]; i++)
;
return i<<3 | biton(keyboard_report->nkro.bits[i]);
}
#endif
#ifdef USB_6KRO_ENABLE
uint8_t i = cb_head;
do {
if (keyboard_report->keys[i] != 0) {
break;
}
i = RO_INC(i);
} while (i != cb_tail);
return keyboard_report->keys[i];
#else
return keyboard_report->keys[0];
#endif
}
/** \brief add key byte
*
* FIXME: Needs doc
*/
void add_key_byte(report_keyboard_t* keyboard_report, uint8_t code)
{
#ifdef USB_6KRO_ENABLE
int8_t i = cb_head;
int8_t empty = -1;
if (cb_count) {
do {
if (keyboard_report->keys[i] == code) {
return;
}
if (empty == -1 && keyboard_report->keys[i] == 0) {
empty = i;
}
i = RO_INC(i);
} while (i != cb_tail);
if (i == cb_tail) {
if (cb_tail == cb_head) {
// buffer is full
if (empty == -1) {
// pop head when has no empty space
cb_head = RO_INC(cb_head);
cb_count--;
}
else {
// left shift when has empty space
uint8_t offset = 1;
i = RO_INC(empty);
do {
if (keyboard_report->keys[i] != 0) {
keyboard_report->keys[empty] = keyboard_report->keys[i];
keyboard_report->keys[i] = 0;
empty = RO_INC(empty);
}
else {
offset++;
}
i = RO_INC(i);
} while (i != cb_tail);
cb_tail = RO_SUB(cb_tail, offset);
}
}
}
}
// add to tail
keyboard_report->keys[cb_tail] = code;
cb_tail = RO_INC(cb_tail);
cb_count++;
#else
int8_t i = 0;
int8_t empty = -1;
for (; i < KEYBOARD_REPORT_KEYS; i++) {
if (keyboard_report->keys[i] == code) {
break;
}
if (empty == -1 && keyboard_report->keys[i] == 0) {
empty = i;
}
}
if (i == KEYBOARD_REPORT_KEYS) {
if (empty != -1) {
keyboard_report->keys[empty] = code;
}
}
#endif
}
/** \brief del key byte
*
* FIXME: Needs doc
*/
void del_key_byte(report_keyboard_t* keyboard_report, uint8_t code)
{
#ifdef USB_6KRO_ENABLE
uint8_t i = cb_head;
if (cb_count) {
do {
if (keyboard_report->keys[i] == code) {
keyboard_report->keys[i] = 0;
cb_count--;
if (cb_count == 0) {
// reset head and tail
cb_tail = cb_head = 0;
}
if (i == RO_DEC(cb_tail)) {
// left shift when next to tail
do {
cb_tail = RO_DEC(cb_tail);
if (keyboard_report->keys[RO_DEC(cb_tail)] != 0) {
break;
}
} while (cb_tail != cb_head);
}
break;
}
i = RO_INC(i);
} while (i != cb_tail);
}
#else
for (uint8_t i = 0; i < KEYBOARD_REPORT_KEYS; i++) {
if (keyboard_report->keys[i] == code) {
keyboard_report->keys[i] = 0;
}
}
#endif
}
#ifdef NKRO_ENABLE
/** \brief add key bit
*
* FIXME: Needs doc
*/
void add_key_bit(report_keyboard_t* keyboard_report, uint8_t code)
{
if ((code>>3) < KEYBOARD_REPORT_BITS) {
keyboard_report->nkro.bits[code>>3] |= 1<<(code&7);
} else {
dprintf("add_key_bit: can't add: %02X\n", code);
}
}
/** \brief del key bit
*
* FIXME: Needs doc
*/
void del_key_bit(report_keyboard_t* keyboard_report, uint8_t code)
{
if ((code>>3) < KEYBOARD_REPORT_BITS) {
keyboard_report->nkro.bits[code>>3] &= ~(1<<(code&7));
} else {
dprintf("del_key_bit: can't del: %02X\n", code);
}
}
#endif
/** \brief add key to report
*
* FIXME: Needs doc
*/
void add_key_to_report(report_keyboard_t* keyboard_report, uint8_t key)
{
#ifdef NKRO_ENABLE
if (keyboard_protocol && keymap_config.nkro) {
add_key_bit(keyboard_report, key);
return;
}
#endif
add_key_byte(keyboard_report, key);
}
/** \brief del key from report
*
* FIXME: Needs doc
*/
void del_key_from_report(report_keyboard_t* keyboard_report, uint8_t key)
{
#ifdef NKRO_ENABLE
if (keyboard_protocol && keymap_config.nkro) {
del_key_bit(keyboard_report, key);
return;
}
#endif
del_key_byte(keyboard_report, key);
}
/** \brief clear key from report
*
* FIXME: Needs doc
*/
void clear_keys_from_report(report_keyboard_t* keyboard_report)
{
// not clear mods
#ifdef NKRO_ENABLE
if (keyboard_protocol && keymap_config.nkro) {
memset(keyboard_report->nkro.bits, 0, sizeof(keyboard_report->nkro.bits));
return;
}
#endif
memset(keyboard_report->keys, 0, sizeof(keyboard_report->keys));
}