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4677 trochtova 1
/*
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 * Copyright (c) 2009 Lenka Trochtova
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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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 *
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 * - 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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 * - 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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 * - The name of the author may not be used to endorse or promote products
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 *   derived from this software without specific prior written permission.
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 *
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 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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 */
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/** @addtogroup shutters
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 * @brief   closing/opening shutters
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 * @{
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 */
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/**
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 * @file
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 */
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#include <stdio.h>
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#include <ipc/ipc.h>
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#include <sys/types.h>
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#include <atomic.h>
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#include <ipc/devmap.h>
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#include <async.h>
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#include <ipc/services.h>
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#include <ipc/serial.h>
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#include <as.h>
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#include <sysinfo.h>
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#include <errno.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <sys/stat.h>
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#include <string.h>
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#define NAME        "shutters"
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#define MYROOM      2
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#define UpSection1  25
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#define DwnSection1 26
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#define UpSection2  27
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#define DwnSection2 28
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static int device_get_handle(const char *name, dev_handle_t *handle);
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static void print_usage();
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static void move_shutters(const char * serial_dev_name, char room, char cmd);
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static char getcmd(bool wnd, bool up);
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static bool is_com_dev(const char *dev_name);
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static int device_get_handle(const char *name, dev_handle_t *handle)
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{
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    int phone = ipc_connect_me_to(PHONE_NS, SERVICE_DEVMAP, DEVMAP_CLIENT, 0);
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    if (phone < 0)
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        return phone;
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    ipc_call_t answer;
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    aid_t req = async_send_2(phone, DEVMAP_DEVICE_GET_HANDLE, 0, 0, &answer);
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    ipcarg_t retval = ipc_data_write_start(phone, name, str_length(name) + 1);
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    if (retval != EOK) {
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        async_wait_for(req, NULL);
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        ipc_hangup(phone);
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        return retval;
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    }
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    async_wait_for(req, &retval);
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    if (handle != NULL)
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        *handle = -1;
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    if (retval == EOK) {
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        if (handle != NULL)
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            *handle = (dev_handle_t) IPC_GET_ARG1(answer);
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    }
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    ipc_hangup(phone);
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    return retval;
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}
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static void print_usage()
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{
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    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");   
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}
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static void move_shutters(const char * serial_dev_name, char room, char cmd)
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{
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    dev_handle_t serial_dev_handle = -1;
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    if (device_get_handle(serial_dev_name, &serial_dev_handle) !=  EOK) {
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        printf(NAME ": could not get the handle of %s.\n", serial_dev_name);
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        return;
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    }
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    printf(NAME ": got the handle of %s.\n", serial_dev_name);
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    int dev_phone = ipc_connect_me_to(PHONE_NS, SERVICE_DEVMAP, DEVMAP_CONNECT_TO_DEVICE, serial_dev_handle);
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    if(dev_phone < 0) {
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        printf(NAME ": could not connect to %s device.\n", serial_dev_name);
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        return;
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    }
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    async_req_1_0(dev_phone, SERIAL_PUTCHAR, 0x55);
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    async_req_1_0(dev_phone, SERIAL_PUTCHAR, room);
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    async_req_1_0(dev_phone, SERIAL_PUTCHAR, cmd);
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    async_req_1_0(dev_phone, SERIAL_PUTCHAR, 240); 
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}
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static char getcmd(bool wnd, bool up)
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{
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    char cmd = 0;
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    if (wnd) {
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        if (up) {
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            cmd = UpSection2;
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        }
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        else {
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            cmd = DwnSection2;
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        }
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    } else {
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        if (up) {
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            cmd = UpSection1;
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        }
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        else {
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            cmd = DwnSection1;
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        }
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    }
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    return cmd;
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}
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/*
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 * The name of a serial device must be between 'com0' and 'com9'.
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 */
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static bool is_com_dev(const char *dev_name)
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{
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    if (str_length(dev_name) != 4) {
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        return false;
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    }
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    if (str_cmp("com0", dev_name) > 0) {
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        return false;
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    }
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    if (str_cmp(dev_name, "com9") > 0) {
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        return false;
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    }
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    return true;
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}
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int main(int argc, char *argv[])
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{
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    if (argc != 4) {
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        printf(NAME ": incorrect number of arguments.\n");
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        print_usage();
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        return 0;      
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    }  
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    bool wnd, up;
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    const char *serial_dev = argv[1];
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    if (!is_com_dev(serial_dev)) {
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        printf(NAME ": the first argument is not correct.\n");
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        print_usage();
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        return 0;  
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    }
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    if (str_cmp(argv[2], "window") == 0) {
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        wnd = true;
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    } else if (str_cmp(argv[2], "door") == 0) {
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        wnd = false;
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    } else {
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        printf(NAME ": the second argument is not correct.\n");
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        print_usage();
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        return 0;
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    }
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    if (str_cmp(argv[2], "window") == 0) {
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        wnd = true;
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    } else if (str_cmp(argv[2], "door") == 0) {
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        wnd = false;
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    } else {
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        printf(NAME ": the third argument is not correct.\n");
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        print_usage();
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        return 0;
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    }
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    if (str_cmp(argv[3], "up") == 0) {
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        up = true;
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    } else if (str_cmp(argv[3], "down") == 0) {
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        up = false;
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    } else {
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        printf(NAME ": the second argument is not correct.\n");
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        print_usage();
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        return 0;
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    }
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    char cmd = getcmd(wnd, up);
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    move_shutters(serial_dev, MYROOM, cmd);
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    return 0;
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}
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/** @}
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 */