source: mainline/uspace/app/shutters/shutters.c@ c47e1a8

/*
 * Copyright (c) 2009 Lenka Trochtova
 * 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 shutters
 * @brief       closing/opening shutters 
 * @{
 */ 
/**
 * @file
 */

#include <stdio.h>
#include <ipc/ipc.h>
#include <sys/types.h>
#include <atomic.h>
#include <ipc/devmap.h>
#include <async.h>
#include <ipc/services.h>
#include <ipc/serial.h>
#include <as.h>
#include <sysinfo.h>
#include <errno.h>


#include <stdlib.h>
#include <unistd.h>
#include <fcntl.h>
#include <sys/stat.h>

#include <str.h>

#define NAME            "shutters"
#define MYROOM          2
#define UpSection1      25
#define DwnSection1 26
#define UpSection2      27
#define DwnSection2 28

static int device_get_handle(const char *name, dev_handle_t *handle);
static void print_usage();
static void move_shutters(const char * serial_dev_name, char room, char cmd);
static char getcmd(bool wnd, bool up);
static bool is_com_dev(const char *dev_name);

static int device_get_handle(const char *name, dev_handle_t *handle)
{
        int phone = ipc_connect_me_to(PHONE_NS, SERVICE_DEVMAP, DEVMAP_CLIENT, 0);
        if (phone < 0)
                return phone;
        
        ipc_call_t answer;
        aid_t req = async_send_2(phone, DEVMAP_DEVICE_GET_HANDLE, 0, 0, &answer);
        
        ipcarg_t retval = ipc_data_write_start(phone, name, str_length(name) + 1); 

        if (retval != EOK) {
                async_wait_for(req, NULL);
                ipc_hangup(phone);
                return retval;
        }

        async_wait_for(req, &retval);

        if (handle != NULL)
                *handle = -1;
        
        if (retval == EOK) {
                if (handle != NULL)
                        *handle = (dev_handle_t) IPC_GET_ARG1(answer);
        }
        
        ipc_hangup(phone);
        return retval;
}

static void print_usage()
{
        printf("Usage: \n shutters comN shutter direction \n where 'comN' is a serial port, 'shutter' is either 'window' or 'door' and direction is 'up' or 'down'.\n");        
}

static void move_shutters(const char * serial_dev_name, char room, char cmd)
{
        dev_handle_t serial_dev_handle = -1;
        
        if (device_get_handle(serial_dev_name, &serial_dev_handle) !=  EOK) {
                printf(NAME ": could not get the handle of %s.\n", serial_dev_name);
                return;
        }
        
        printf(NAME ": got the handle of %s.\n", serial_dev_name);
        
        int dev_phone = ipc_connect_me_to(PHONE_NS, SERVICE_DEVMAP, DEVMAP_CONNECT_TO_DEVICE, serial_dev_handle);
        if(dev_phone < 0) {
                printf(NAME ": could not connect to %s device.\n", serial_dev_name);
                return;
        }
        
        async_req_1_0(dev_phone, SERIAL_PUTCHAR, 0x55);
        async_req_1_0(dev_phone, SERIAL_PUTCHAR, room);
        async_req_1_0(dev_phone, SERIAL_PUTCHAR, cmd);
        async_req_1_0(dev_phone, SERIAL_PUTCHAR, 240);  
}

static char getcmd(bool wnd, bool up)
{
        char cmd = 0;
        if (wnd) {
                if (up) {
                        cmd = UpSection2;
                }
                else {
                        cmd = DwnSection2;
                }
        } else {
                if (up) {
                        cmd = UpSection1;
                }
                else {
                        cmd = DwnSection1;
                }
        }
        return cmd;
}

/*
 * The name of a serial device must be between 'com0' and 'com9'.
 */ 
static bool is_com_dev(const char *dev_name) 
{
        if (str_length(dev_name) != 4) {
                return false;
        }
        
        if (str_cmp("com0", dev_name) > 0) {
                return false;
        }
        
        if (str_cmp(dev_name, "com9") > 0) {
                return false;
        }
        
        return true;
}


int main(int argc, char *argv[])
{
        if (argc != 4) {
                printf(NAME ": incorrect number of arguments.\n");
                print_usage();
                return 0;               
        }       

        bool wnd, up;
        const char *serial_dev = argv[1];
        
        if (!is_com_dev(serial_dev)) {
                printf(NAME ": the first argument is not correct.\n");
                print_usage();
                return 0;       
        }
        
        if (str_cmp(argv[2], "window") == 0) {
                wnd = true;
        } else if (str_cmp(argv[2], "door") == 0) {
                wnd = false;
        } else {
                printf(NAME ": the second argument is not correct.\n");
                print_usage();
                return 0;
        }
        
        if (str_cmp(argv[2], "window") == 0) {
                wnd = true;
        } else if (str_cmp(argv[2], "door") == 0) {
                wnd = false;
        } else {
                printf(NAME ": the third argument is not correct.\n");
                print_usage();
                return 0;
        }
        
        if (str_cmp(argv[3], "up") == 0) {
                up = true;
        } else if (str_cmp(argv[3], "down") == 0) {
                up = false;
        } else {
                printf(NAME ": the second argument is not correct.\n");
                print_usage();
                return 0;
        }
        
        char cmd = getcmd(wnd, up);     
        move_shutters(serial_dev, MYROOM, cmd);
        
        return 0;
}

/** @}
 */