this on the branch. Original commit message: Initial bhyve native graphics support. This adds emulations for a raw framebuffer device, PS2 keyboard/mouse, XHCI USB controller and a USB tablet. A simple VNC server is provided for keyboard/mouse input, and graphics output. A VGA emulation is included, but is currently disconnected until an additional bhyve change to block out VGA memory is committed. Credits: - raw framebuffer, VNC server, XHCI controller, USB bus/device emulation and UEFI f/w support by Leon Dang - VGA, console/g, initial VNC server by tychon@ - PS2 keyboard/mouse jointly done by tychon@ and Leon Dang - hypervisor framebuffer mem support by neel@ Tested by: Michael Dexter, in a number of revisions of this code. With the appropriate UEFI image, FreeBSD, Windows and Linux guests can installed and run in graphics mode using the UEFI/GOP framebuffer. Approved by: re (gjb)
406 lines
8.8 KiB
C
406 lines
8.8 KiB
C
/*-
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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 "console.h"
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/* mouse device commands */
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#define PS2MC_RESET_DEV 0xff
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#define PS2MC_SET_DEFAULTS 0xf6
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#define PS2MC_DISABLE 0xf5
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#define PS2MC_ENABLE 0xf4
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#define PS2MC_SET_SAMPLING_RATE 0xf3
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#define PS2MC_SEND_DEV_ID 0xf2
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#define PS2MC_SET_REMOTE_MODE 0xf0
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#define PS2MC_SEND_DEV_DATA 0xeb
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#define PS2MC_SET_STREAM_MODE 0xea
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#define PS2MC_SEND_DEV_STATUS 0xe9
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#define PS2MC_SET_RESOLUTION 0xe8
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#define PS2MC_SET_SCALING1 0xe7
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#define PS2MC_SET_SCALING2 0xe6
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#define PS2MC_BAT_SUCCESS 0xaa
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#define PS2MC_ACK 0xfa
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/* mouse device id */
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#define PS2MOUSE_DEV_ID 0x0
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/* mouse status bits */
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#define PS2M_STS_REMOTE_MODE 0x40
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#define PS2M_STS_ENABLE_DEV 0x20
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#define PS2M_STS_SCALING_21 0x10
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#define PS2M_STS_MID_BUTTON 0x04
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#define PS2M_STS_RIGHT_BUTTON 0x02
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#define PS2M_STS_LEFT_BUTTON 0x01
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#define PS2MOUSE_FIFOSZ 16
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struct fifo {
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uint8_t buf[PS2MOUSE_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 ps2mouse_softc {
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struct atkbdc_softc *atkbdc_sc;
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pthread_mutex_t mtx;
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uint8_t status;
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uint8_t resolution;
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uint8_t sampling_rate;
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int ctrlenable;
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struct fifo fifo;
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uint8_t curcmd; /* current command for next byte */
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int cur_x, cur_y;
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int delta_x, delta_y;
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};
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static void
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fifo_init(struct ps2mouse_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 ps2mouse_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 ps2mouse_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 ps2mouse_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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static void
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movement_reset(struct ps2mouse_softc *sc)
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{
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assert(pthread_mutex_isowned_np(&sc->mtx));
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sc->delta_x = 0;
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sc->delta_y = 0;
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}
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static void
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movement_update(struct ps2mouse_softc *sc, int x, int y)
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{
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sc->delta_x += x - sc->cur_x;
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sc->delta_y += sc->cur_y - y;
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sc->cur_x = x;
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sc->cur_y = y;
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}
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static void
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movement_get(struct ps2mouse_softc *sc)
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{
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uint8_t val0, val1, val2;
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assert(pthread_mutex_isowned_np(&sc->mtx));
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val0 = sc->status & (PS2M_STS_LEFT_BUTTON |
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PS2M_STS_RIGHT_BUTTON | PS2M_STS_MID_BUTTON);
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if (sc->delta_x >= 0) {
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if (sc->delta_x > 255) {
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val0 |= (1 << 6);
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val1 = 255;
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} else
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val1 = sc->delta_x;
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} else {
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val0 |= (1 << 4);
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if (sc->delta_x < -255) {
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val0 |= (1 << 6);
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val1 = 255;
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} else
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val1 = sc->delta_x;
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}
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sc->delta_x = 0;
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if (sc->delta_y >= 0) {
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if (sc->delta_y > 255) {
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val0 |= (1 << 7);
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val2 = 255;
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} else
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val2 = sc->delta_y;
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} else {
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val0 |= (1 << 5);
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if (sc->delta_y < -255) {
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val0 |= (1 << 7);
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val2 = 255;
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} else
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val2 = sc->delta_y;
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}
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sc->delta_y = 0;
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if (sc->fifo.num < (sc->fifo.size - 3)) {
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fifo_put(sc, val0);
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fifo_put(sc, val1);
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fifo_put(sc, val2);
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}
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}
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static void
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ps2mouse_reset(struct ps2mouse_softc *sc)
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{
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assert(pthread_mutex_isowned_np(&sc->mtx));
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fifo_reset(sc);
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movement_reset(sc);
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sc->status = PS2M_STS_ENABLE_DEV;
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sc->resolution = 4;
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sc->sampling_rate = 100;
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sc->cur_x = 0;
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sc->cur_y = 0;
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sc->delta_x = 0;
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sc->delta_y = 0;
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}
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int
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ps2mouse_read(struct ps2mouse_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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int
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ps2mouse_fifocnt(struct ps2mouse_softc *sc)
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{
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return (sc->fifo.num);
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}
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void
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ps2mouse_toggle(struct ps2mouse_softc *sc, int enable)
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{
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pthread_mutex_lock(&sc->mtx);
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if (enable)
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sc->ctrlenable = 1;
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else {
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sc->ctrlenable = 0;
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sc->fifo.rindex = 0;
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sc->fifo.windex = 0;
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sc->fifo.num = 0;
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}
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pthread_mutex_unlock(&sc->mtx);
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}
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void
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ps2mouse_write(struct ps2mouse_softc *sc, uint8_t val, int insert)
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{
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pthread_mutex_lock(&sc->mtx);
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fifo_reset(sc);
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if (sc->curcmd) {
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switch (sc->curcmd) {
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case PS2MC_SET_SAMPLING_RATE:
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sc->sampling_rate = val;
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fifo_put(sc, PS2MC_ACK);
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break;
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case PS2MC_SET_RESOLUTION:
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sc->resolution = val;
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fifo_put(sc, PS2MC_ACK);
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break;
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default:
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fprintf(stderr, "Unhandled ps2 mouse current "
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"command byte 0x%02x\n", val);
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break;
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}
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sc->curcmd = 0;
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} else if (insert) {
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fifo_put(sc, val);
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} else {
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switch (val) {
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case 0x00:
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fifo_put(sc, PS2MC_ACK);
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break;
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case PS2MC_RESET_DEV:
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ps2mouse_reset(sc);
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fifo_put(sc, PS2MC_ACK);
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fifo_put(sc, PS2MC_BAT_SUCCESS);
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fifo_put(sc, PS2MOUSE_DEV_ID);
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break;
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case PS2MC_SET_DEFAULTS:
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ps2mouse_reset(sc);
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fifo_put(sc, PS2MC_ACK);
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break;
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case PS2MC_DISABLE:
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fifo_reset(sc);
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sc->status &= ~PS2M_STS_ENABLE_DEV;
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fifo_put(sc, PS2MC_ACK);
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break;
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case PS2MC_ENABLE:
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fifo_reset(sc);
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sc->status |= PS2M_STS_ENABLE_DEV;
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fifo_put(sc, PS2MC_ACK);
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break;
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case PS2MC_SET_SAMPLING_RATE:
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sc->curcmd = val;
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fifo_put(sc, PS2MC_ACK);
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break;
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case PS2MC_SEND_DEV_ID:
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fifo_put(sc, PS2MC_ACK);
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fifo_put(sc, PS2MOUSE_DEV_ID);
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break;
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case PS2MC_SET_REMOTE_MODE:
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sc->status |= PS2M_STS_REMOTE_MODE;
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fifo_put(sc, PS2MC_ACK);
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break;
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case PS2MC_SEND_DEV_DATA:
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fifo_put(sc, PS2MC_ACK);
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movement_get(sc);
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break;
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case PS2MC_SET_STREAM_MODE:
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sc->status &= ~PS2M_STS_REMOTE_MODE;
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fifo_put(sc, PS2MC_ACK);
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break;
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case PS2MC_SEND_DEV_STATUS:
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fifo_put(sc, PS2MC_ACK);
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fifo_put(sc, sc->status);
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fifo_put(sc, sc->resolution);
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fifo_put(sc, sc->sampling_rate);
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break;
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case PS2MC_SET_RESOLUTION:
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sc->curcmd = val;
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fifo_put(sc, PS2MC_ACK);
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break;
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case PS2MC_SET_SCALING1:
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case PS2MC_SET_SCALING2:
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fifo_put(sc, PS2MC_ACK);
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break;
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default:
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fifo_put(sc, PS2MC_ACK);
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fprintf(stderr, "Unhandled ps2 mouse command "
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"0x%02x\n", 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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static void
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ps2mouse_event(uint8_t button, int x, int y, void *arg)
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{
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struct ps2mouse_softc *sc = arg;
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pthread_mutex_lock(&sc->mtx);
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movement_update(sc, x, y);
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sc->status &= ~(PS2M_STS_LEFT_BUTTON |
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PS2M_STS_RIGHT_BUTTON | PS2M_STS_MID_BUTTON);
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if (button & (1 << 0))
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sc->status |= PS2M_STS_LEFT_BUTTON;
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if (button & (1 << 1))
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sc->status |= PS2M_STS_MID_BUTTON;
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if (button & (1 << 2))
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sc->status |= PS2M_STS_RIGHT_BUTTON;
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if ((sc->status & PS2M_STS_ENABLE_DEV) == 0 || !sc->ctrlenable) {
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/* no data reporting */
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pthread_mutex_unlock(&sc->mtx);
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return;
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}
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movement_get(sc);
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pthread_mutex_unlock(&sc->mtx);
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if (sc->fifo.num > 0)
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atkbdc_event(sc->atkbdc_sc, 0);
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}
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struct ps2mouse_softc *
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ps2mouse_init(struct atkbdc_softc *atkbdc_sc)
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{
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struct ps2mouse_softc *sc;
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sc = calloc(1, sizeof (struct ps2mouse_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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pthread_mutex_lock(&sc->mtx);
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ps2mouse_reset(sc);
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pthread_mutex_unlock(&sc->mtx);
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console_ptr_register(ps2mouse_event, sc, 1);
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return (sc);
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}
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