/*
* Copyright (c) 2021 Jiri Svoboda
* Copyright (c) 2011 Martin Decky
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* - 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.
* - The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 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.
*/
/** @addtogroup mouse_proto
* @ingroup input
* @{
*/
/**
* @file
* @brief Mouse device connector controller driver.
*/
#include <stdio.h>
#include <vfs/vfs_sess.h>
#include <async.h>
#include <errno.h>
#include <ipc/mouseev.h>
#include <loc.h>
#include <stdlib.h>
#include <time.h>
#include "../mouse.h"
#include "../mouse_port.h"
#include "../mouse_proto.h"
#include "../input.h"
enum {
/** Default double-click speed in milliseconds */
dclick_delay_ms = 500
};
/** Mousedev softstate */
typedef struct {
/** Link to generic mouse device */
mouse_dev_t *mouse_dev;
/** Button number of last button pressed (or -1 if none) */
int press_bnum;
/** Time at which button was last pressed */
struct timespec press_time;
} mousedev_t;
static mousedev_t *mousedev_new(mouse_dev_t *mdev)
{
mousedev_t *mousedev = calloc(1, sizeof(mousedev_t));
if (mousedev == NULL)
return NULL;
mousedev->mouse_dev = mdev;
mousedev->press_bnum = -1;
return mousedev;
}
static void mousedev_destroy(mousedev_t *mousedev)
{
free(mousedev);
}
static void mousedev_press(mousedev_t *mousedev, int bnum)
{
struct timespec now;
nsec_t ms_delay;
getuptime(&now);
/* Same button was pressed previously */
if (mousedev->press_bnum == bnum) {
/* Compute milliseconds since previous press */
ms_delay = ts_sub_diff(&now, &mousedev->press_time) / 1000000;
if (ms_delay <= dclick_delay_ms) {
mouse_push_event_dclick(mousedev->mouse_dev, bnum);
mousedev->press_bnum = -1;
return;
}
}
/* Record which button was last pressed and at what time */
mousedev->press_bnum = bnum;
mousedev->press_time = now;
}
static void mousedev_callback_conn(ipc_call_t *icall, void *arg)
{
/* Mousedev device structure */
mousedev_t *mousedev = (mousedev_t *) arg;
while (true) {
ipc_call_t call;
async_get_call(&call);
if (!ipc_get_imethod(&call)) {
async_answer_0(&call, EOK);
mousedev_destroy(mousedev);
return;
}
errno_t retval;
switch (ipc_get_imethod(&call)) {
case MOUSEEV_MOVE_EVENT:
mouse_push_event_move(mousedev->mouse_dev,
ipc_get_arg1(&call), ipc_get_arg2(&call),
ipc_get_arg3(&call));
retval = EOK;
break;
case MOUSEEV_ABS_MOVE_EVENT:
mouse_push_event_abs_move(mousedev->mouse_dev,
ipc_get_arg1(&call), ipc_get_arg2(&call),
ipc_get_arg3(&call), ipc_get_arg4(&call));
retval = EOK;
break;
case MOUSEEV_BUTTON_EVENT:
mouse_push_event_button(mousedev->mouse_dev,
ipc_get_arg1(&call), ipc_get_arg2(&call));
if (ipc_get_arg2(&call) != 0)
mousedev_press(mousedev, ipc_get_arg1(&call));
retval = EOK;
break;
default:
retval = ENOTSUP;
break;
}
async_answer_0(&call, retval);
}
}
static errno_t mousedev_proto_init(mouse_dev_t *mdev)
{
async_sess_t *sess = loc_service_connect(mdev->svc_id, INTERFACE_DDF, 0);
if (sess == NULL) {
printf("%s: Failed starting session with '%s'\n", NAME,
mdev->svc_name);
return ENOENT;
}
mousedev_t *mousedev = mousedev_new(mdev);
if (mousedev == NULL) {
printf("%s: Failed allocating device structure for '%s'.\n",
NAME, mdev->svc_name);
async_hangup(sess);
return ENOMEM;
}
async_exch_t *exch = async_exchange_begin(sess);
if (exch == NULL) {
printf("%s: Failed starting exchange with '%s'.\n", NAME,
mdev->svc_name);
mousedev_destroy(mousedev);
async_hangup(sess);
return ENOENT;
}
port_id_t port;
errno_t rc = async_create_callback_port(exch, INTERFACE_MOUSE_CB, 0, 0,
mousedev_callback_conn, mousedev, &port);
async_exchange_end(exch);
async_hangup(sess);
if (rc != EOK) {
printf("%s: Failed creating callback connection from '%s'.\n",
NAME, mdev->svc_name);
mousedev_destroy(mousedev);
return rc;
}
return EOK;
}
mouse_proto_ops_t mousedev_proto = {
.init = mousedev_proto_init
};
/**
* @}
*/