332eff95e3
Add printf() wrapper to use CR/CRLF terminators depending on whether stdio is mapped to a tty open in raw mode. Try to use the wrapper everywhere. For now we leave the custom DPRINTF/WPRINTF defined by device models, but we may remove them in the future. Reviewed by: grehan, jhb MFC after: 2 weeks Differential Revision: https://reviews.freebsd.org/D22657
385 lines
9.9 KiB
C
385 lines
9.9 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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* Copyright (c) 2015 Tycho Nightingale <tycho.nightingale@pluribusnetworks.com>
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* Copyright (c) 2015 Nahanni Systems Inc.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/types.h>
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#include <assert.h>
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#include <stdbool.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <strings.h>
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#include <pthread.h>
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#include <pthread_np.h>
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#include "atkbdc.h"
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#include "debug.h"
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#include "console.h"
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/* keyboard device commands */
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#define PS2KC_RESET_DEV 0xff
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#define PS2KC_DISABLE 0xf5
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#define PS2KC_ENABLE 0xf4
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#define PS2KC_SET_TYPEMATIC 0xf3
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#define PS2KC_SEND_DEV_ID 0xf2
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#define PS2KC_SET_SCANCODE_SET 0xf0
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#define PS2KC_ECHO 0xee
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#define PS2KC_SET_LEDS 0xed
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#define PS2KC_BAT_SUCCESS 0xaa
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#define PS2KC_ACK 0xfa
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#define PS2KBD_FIFOSZ 16
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struct fifo {
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uint8_t buf[PS2KBD_FIFOSZ];
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int rindex; /* index to read from */
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int windex; /* index to write to */
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int num; /* number of bytes in the fifo */
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int size; /* size of the fifo */
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};
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struct ps2kbd_softc {
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struct atkbdc_softc *atkbdc_sc;
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pthread_mutex_t mtx;
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bool enabled;
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struct fifo fifo;
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uint8_t curcmd; /* current command for next byte */
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};
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#define SCANCODE_E0_PREFIX 1
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struct extended_translation {
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uint32_t keysym;
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uint8_t scancode;
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int flags;
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};
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/*
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* FIXME: Pause/break and Print Screen/SysRq require special handling.
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*/
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static const struct extended_translation extended_translations[] = {
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{0xff08, 0x66}, /* Back space */
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{0xff09, 0x0d}, /* Tab */
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{0xff0d, 0x5a}, /* Return */
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{0xff1b, 0x76}, /* Escape */
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{0xff50, 0x6c, SCANCODE_E0_PREFIX}, /* Home */
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{0xff51, 0x6b, SCANCODE_E0_PREFIX}, /* Left arrow */
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{0xff52, 0x75, SCANCODE_E0_PREFIX}, /* Up arrow */
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{0xff53, 0x74, SCANCODE_E0_PREFIX}, /* Right arrow */
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{0xff54, 0x72, SCANCODE_E0_PREFIX}, /* Down arrow */
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{0xff55, 0x7d, SCANCODE_E0_PREFIX}, /* PgUp */
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{0xff56, 0x7a, SCANCODE_E0_PREFIX}, /* PgDown */
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{0xff57, 0x69, SCANCODE_E0_PREFIX}, /* End */
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{0xff63, 0x70, SCANCODE_E0_PREFIX}, /* Ins */
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{0xff8d, 0x5a, SCANCODE_E0_PREFIX}, /* Keypad Enter */
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{0xffe1, 0x12}, /* Left shift */
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{0xffe2, 0x59}, /* Right shift */
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{0xffe3, 0x14}, /* Left control */
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{0xffe4, 0x14, SCANCODE_E0_PREFIX}, /* Right control */
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/* {0xffe7, XXX}, Left meta */
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/* {0xffe8, XXX}, Right meta */
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{0xffe9, 0x11}, /* Left alt */
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{0xfe03, 0x11, SCANCODE_E0_PREFIX}, /* AltGr */
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{0xffea, 0x11, SCANCODE_E0_PREFIX}, /* Right alt */
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{0xffeb, 0x1f, SCANCODE_E0_PREFIX}, /* Left Windows */
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{0xffec, 0x27, SCANCODE_E0_PREFIX}, /* Right Windows */
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{0xffbe, 0x05}, /* F1 */
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{0xffbf, 0x06}, /* F2 */
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{0xffc0, 0x04}, /* F3 */
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{0xffc1, 0x0c}, /* F4 */
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{0xffc2, 0x03}, /* F5 */
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{0xffc3, 0x0b}, /* F6 */
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{0xffc4, 0x83}, /* F7 */
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{0xffc5, 0x0a}, /* F8 */
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{0xffc6, 0x01}, /* F9 */
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{0xffc7, 0x09}, /* F10 */
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{0xffc8, 0x78}, /* F11 */
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{0xffc9, 0x07}, /* F12 */
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{0xffff, 0x71, SCANCODE_E0_PREFIX}, /* Del */
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{0xff14, 0x7e}, /* ScrollLock */
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/* NumLock and Keypads*/
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{0xff7f, 0x77}, /* NumLock */
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{0xffaf, 0x4a, SCANCODE_E0_PREFIX}, /* Keypad slash */
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{0xffaa, 0x7c}, /* Keypad asterisk */
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{0xffad, 0x7b}, /* Keypad minus */
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{0xffab, 0x79}, /* Keypad plus */
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{0xffb7, 0x6c}, /* Keypad 7 */
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{0xff95, 0x6c}, /* Keypad home */
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{0xffb8, 0x75}, /* Keypad 8 */
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{0xff97, 0x75}, /* Keypad up arrow */
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{0xffb9, 0x7d}, /* Keypad 9 */
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{0xff9a, 0x7d}, /* Keypad PgUp */
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{0xffb4, 0x6b}, /* Keypad 4 */
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{0xff96, 0x6b}, /* Keypad left arrow */
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{0xffb5, 0x73}, /* Keypad 5 */
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{0xff9d, 0x73}, /* Keypad empty */
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{0xffb6, 0x74}, /* Keypad 6 */
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{0xff98, 0x74}, /* Keypad right arrow */
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{0xffb1, 0x69}, /* Keypad 1 */
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{0xff9c, 0x69}, /* Keypad end */
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{0xffb2, 0x72}, /* Keypad 2 */
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{0xff99, 0x72}, /* Keypad down arrow */
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{0xffb3, 0x7a}, /* Keypad 3 */
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{0xff9b, 0x7a}, /* Keypad PgDown */
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{0xffb0, 0x70}, /* Keypad 0 */
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{0xff9e, 0x70}, /* Keypad ins */
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{0xffae, 0x71}, /* Keypad . */
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{0xff9f, 0x71}, /* Keypad del */
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{0, 0, 0} /* Terminator */
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};
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/* ASCII to type 2 scancode lookup table */
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static const uint8_t ascii_translations[128] = {
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x29, 0x16, 0x52, 0x26, 0x25, 0x2e, 0x3d, 0x52,
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0x46, 0x45, 0x3e, 0x55, 0x41, 0x4e, 0x49, 0x4a,
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0x45, 0x16, 0x1e, 0x26, 0x25, 0x2e, 0x36, 0x3d,
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0x3e, 0x46, 0x4c, 0x4c, 0x41, 0x55, 0x49, 0x4a,
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0x1e, 0x1c, 0x32, 0x21, 0x23, 0x24, 0x2b, 0x34,
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0x33, 0x43, 0x3b, 0x42, 0x4b, 0x3a, 0x31, 0x44,
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0x4d, 0x15, 0x2d, 0x1b, 0x2c, 0x3c, 0x2a, 0x1d,
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0x22, 0x35, 0x1a, 0x54, 0x5d, 0x5b, 0x36, 0x4e,
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0x0e, 0x1c, 0x32, 0x21, 0x23, 0x24, 0x2b, 0x34,
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0x33, 0x43, 0x3b, 0x42, 0x4b, 0x3a, 0x31, 0x44,
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0x4d, 0x15, 0x2d, 0x1b, 0x2c, 0x3c, 0x2a, 0x1d,
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0x22, 0x35, 0x1a, 0x54, 0x5d, 0x5b, 0x0e, 0x00,
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};
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static void
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fifo_init(struct ps2kbd_softc *sc)
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{
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struct fifo *fifo;
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fifo = &sc->fifo;
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fifo->size = sizeof(((struct fifo *)0)->buf);
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}
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static void
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fifo_reset(struct ps2kbd_softc *sc)
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{
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struct fifo *fifo;
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fifo = &sc->fifo;
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bzero(fifo, sizeof(struct fifo));
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fifo->size = sizeof(((struct fifo *)0)->buf);
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}
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static void
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fifo_put(struct ps2kbd_softc *sc, uint8_t val)
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{
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struct fifo *fifo;
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fifo = &sc->fifo;
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if (fifo->num < fifo->size) {
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fifo->buf[fifo->windex] = val;
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fifo->windex = (fifo->windex + 1) % fifo->size;
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fifo->num++;
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}
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}
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static int
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fifo_get(struct ps2kbd_softc *sc, uint8_t *val)
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{
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struct fifo *fifo;
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fifo = &sc->fifo;
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if (fifo->num > 0) {
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*val = fifo->buf[fifo->rindex];
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fifo->rindex = (fifo->rindex + 1) % fifo->size;
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fifo->num--;
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return (0);
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}
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return (-1);
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}
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int
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ps2kbd_read(struct ps2kbd_softc *sc, uint8_t *val)
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{
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int retval;
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pthread_mutex_lock(&sc->mtx);
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retval = fifo_get(sc, val);
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pthread_mutex_unlock(&sc->mtx);
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return (retval);
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}
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void
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ps2kbd_write(struct ps2kbd_softc *sc, uint8_t val)
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{
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pthread_mutex_lock(&sc->mtx);
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if (sc->curcmd) {
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switch (sc->curcmd) {
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case PS2KC_SET_TYPEMATIC:
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fifo_put(sc, PS2KC_ACK);
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break;
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case PS2KC_SET_SCANCODE_SET:
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fifo_put(sc, PS2KC_ACK);
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break;
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case PS2KC_SET_LEDS:
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fifo_put(sc, PS2KC_ACK);
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break;
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default:
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EPRINTLN("Unhandled ps2 keyboard current "
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"command byte 0x%02x", val);
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break;
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}
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sc->curcmd = 0;
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} else {
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switch (val) {
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case 0x00:
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fifo_put(sc, PS2KC_ACK);
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break;
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case PS2KC_RESET_DEV:
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fifo_reset(sc);
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fifo_put(sc, PS2KC_ACK);
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fifo_put(sc, PS2KC_BAT_SUCCESS);
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break;
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case PS2KC_DISABLE:
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sc->enabled = false;
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fifo_put(sc, PS2KC_ACK);
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break;
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case PS2KC_ENABLE:
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sc->enabled = true;
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fifo_reset(sc);
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fifo_put(sc, PS2KC_ACK);
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break;
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case PS2KC_SET_TYPEMATIC:
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sc->curcmd = val;
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fifo_put(sc, PS2KC_ACK);
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break;
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case PS2KC_SEND_DEV_ID:
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fifo_put(sc, PS2KC_ACK);
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fifo_put(sc, 0xab);
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fifo_put(sc, 0x83);
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break;
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case PS2KC_SET_SCANCODE_SET:
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sc->curcmd = val;
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fifo_put(sc, PS2KC_ACK);
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break;
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case PS2KC_ECHO:
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fifo_put(sc, PS2KC_ECHO);
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break;
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case PS2KC_SET_LEDS:
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sc->curcmd = val;
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fifo_put(sc, PS2KC_ACK);
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break;
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default:
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EPRINTLN("Unhandled ps2 keyboard command "
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"0x%02x", val);
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break;
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}
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}
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pthread_mutex_unlock(&sc->mtx);
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}
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/*
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* Translate keysym to type 2 scancode and insert into keyboard buffer.
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*/
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static void
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ps2kbd_keysym_queue(struct ps2kbd_softc *sc,
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int down, uint32_t keysym)
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{
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assert(pthread_mutex_isowned_np(&sc->mtx));
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int e0_prefix, found;
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uint8_t code;
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const struct extended_translation *trans;
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found = 0;
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if (keysym < 0x80) {
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code = ascii_translations[keysym];
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e0_prefix = 0;
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found = 1;
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} else {
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for (trans = &(extended_translations[0]); trans->keysym != 0;
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trans++) {
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if (keysym == trans->keysym) {
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code = trans->scancode;
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e0_prefix = trans->flags & SCANCODE_E0_PREFIX;
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found = 1;
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break;
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}
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}
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}
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if (!found) {
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EPRINTLN("Unhandled ps2 keyboard keysym 0x%x", keysym);
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return;
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}
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if (e0_prefix)
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fifo_put(sc, 0xe0);
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if (!down)
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fifo_put(sc, 0xf0);
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fifo_put(sc, code);
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}
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static void
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ps2kbd_event(int down, uint32_t keysym, void *arg)
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{
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struct ps2kbd_softc *sc = arg;
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int fifo_full;
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pthread_mutex_lock(&sc->mtx);
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if (!sc->enabled) {
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pthread_mutex_unlock(&sc->mtx);
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return;
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}
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fifo_full = sc->fifo.num == PS2KBD_FIFOSZ;
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ps2kbd_keysym_queue(sc, down, keysym);
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pthread_mutex_unlock(&sc->mtx);
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if (!fifo_full)
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atkbdc_event(sc->atkbdc_sc, 1);
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}
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struct ps2kbd_softc *
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ps2kbd_init(struct atkbdc_softc *atkbdc_sc)
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{
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struct ps2kbd_softc *sc;
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sc = calloc(1, sizeof (struct ps2kbd_softc));
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pthread_mutex_init(&sc->mtx, NULL);
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fifo_init(sc);
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sc->atkbdc_sc = atkbdc_sc;
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console_kbd_register(ps2kbd_event, sc, 1);
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return (sc);
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}
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