source: mainline/uspace/app/tester/devmap/devmap1.c@ 8ccd2ea

/*
 * Copyright (c) 2007 Josef Cejka
 * 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.
 */

#include <stdio.h>
#include <unistd.h>
#include <ipc/ipc.h>
#include <ipc/services.h>
#include <async.h>
#include <errno.h>
#include <../../../srv/devmap/devmap.h>
#include "../tester.h"

#include <time.h>

#define TEST_DEVICE1 "TestDevice1"
#define TEST_DEVICE2 "TestDevice2"

/** Handle requests from clients 
 *
 */
static void driver_client_connection(ipc_callid_t iid, ipc_call_t *icall)
{
        ipc_callid_t callid;
        ipc_call_t call;
        int retval;
        
        printf("connected: method=%u arg1=%u, arg2=%u arg3=%u.\n",
            IPC_GET_METHOD(*icall), IPC_GET_ARG1(*icall), IPC_GET_ARG2(*icall),
            IPC_GET_ARG3(*icall));

        printf("driver_client_connection.\n");
        ipc_answer_0(iid, EOK);

        /* Ignore parameters, the connection is already opened */
        while (1) {
                callid = async_get_call(&call);
                retval = EOK;
                printf("method=%u arg1=%u, arg2=%u arg3=%u.\n",
                    IPC_GET_METHOD(call), IPC_GET_ARG1(call),
                    IPC_GET_ARG2(call), IPC_GET_ARG3(call));
                switch (IPC_GET_METHOD(call)) {
                case IPC_M_PHONE_HUNGUP:
                        /* TODO: Handle hangup */
                        return;
                default:
                        printf("Unknown device method %u.\n",
                            IPC_GET_METHOD(call));
                        retval = ENOENT;
                }
                ipc_answer_0(callid, retval);
        }
        return;
}

static int device_client_fibril(void *arg)
{
        int handle;
        int device_phone;

        handle = (int)arg;

        device_phone = ipc_connect_me_to(PHONE_NS, SERVICE_DEVMAP,
            DEVMAP_CONNECT_TO_DEVICE, handle);

        if (device_phone < 0) {
                printf("Failed to connect to devmap as client (handle = %u).\n",
                    handle);
                return -1;
        }
/*      
 *      device_phone = (int) IPC_GET_ARG5(answer);
 */
        printf("Connected to device.\n");
        ipc_call_sync_1_0(device_phone, 1024, 1025);
/*
 * ipc_hangup(device_phone);
 */
        ipc_hangup(device_phone);

        return EOK;
}

/** Communication test with device.
 * @param handle handle to tested instance.
 */
static int device_client(int handle)
{
/*      fid_t fid;
        ipc_call_t call;
        ipc_callid_t callid;

        fid = fibril_create(device_client_fibril, (void *)handle);
        fibril_add_ready(fid);

*/
        return EOK;
}

/**
 *
 */
static int driver_register(char *name)
{
        ipcarg_t retval;
        aid_t req;
        ipc_call_t answer;
        int phone;
        ipcarg_t callback_phonehash;

        phone = ipc_connect_me_to(PHONE_NS, SERVICE_DEVMAP, DEVMAP_DRIVER, 0);

        while (phone < 0) {
                usleep(100000);
                phone = ipc_connect_me_to(PHONE_NS, SERVICE_DEVMAP,
                    DEVMAP_DRIVER, 0);
        }
        
        req = async_send_2(phone, DEVMAP_DRIVER_REGISTER, 0, 0, &answer);

        retval = ipc_data_write_start(phone, (char *)name, strlen(name) + 1); 

        if (retval != EOK) {
                async_wait_for(req, NULL);
                return -1;
        }

        async_set_client_connection(driver_client_connection);

        ipc_connect_to_me(phone, 0, 0, 0, &callback_phonehash);
/*      
        if (NULL == async_new_connection(callback_phonehash, 0, NULL,
                        driver_client_connection)) {
                printf("Failed to create new fibril.\n");       
                async_wait_for(req, NULL);
                return -1;
        }
*/
        async_wait_for(req, &retval);
        printf("Driver '%s' registered.\n", name);

        return phone;
}

static int device_get_handle(int driver_phone, char *name, int *handle)
{
        ipcarg_t retval;
        aid_t req;
        ipc_call_t answer;

        req = async_send_2(driver_phone, DEVMAP_DEVICE_GET_HANDLE, 0, 0,
            &answer);

        retval = ipc_data_write_start(driver_phone, name, strlen(name) + 1); 

        if (retval != EOK) {
                printf("Failed to send device name '%s'.\n", name);
                async_wait_for(req, NULL);
                return retval;
        }

        async_wait_for(req, &retval);

        if (NULL != handle) {
                *handle = -1;
        }

        if (EOK == retval) {
                
                if (NULL != handle) {
                        *handle = (int) IPC_GET_ARG1(answer);
                }
                printf("Device '%s' has handle %u.\n", name,
                    (int) IPC_GET_ARG1(answer));
        } else {
                printf("Failed to get handle for device '%s'.\n", name);
        }

        return retval;
}

/** Register new device.
 * @param driver_phone
 * @param name Device name.
 * @param handle Output variable. Handle to the created instance of device.
 */
static int device_register(int driver_phone, char *name, int *handle)
{
        ipcarg_t retval;
        aid_t req;
        ipc_call_t answer;

        req = async_send_2(driver_phone, DEVMAP_DEVICE_REGISTER, 0, 0, &answer);

        retval = ipc_data_write_start(driver_phone, (char *)name,
            strlen(name) + 1); 

        if (retval != EOK) {
                printf("Failed to send device name '%s'.\n", name);
                async_wait_for(req, NULL);
                return retval;
        }

        async_wait_for(req, &retval);

        if (NULL != handle) {
                *handle = -1;
        }

        if (EOK == retval) {
                
                if (NULL != handle) {
                        *handle = (int) IPC_GET_ARG1(answer);
                }
                printf("Device registered with handle %u.\n",
                    (int) IPC_GET_ARG1(answer));
        }

        return retval;
}

/** Test DevMap from the driver's point of view.
 *
 *
 */
char * test_devmap1(bool quiet)
{
        int driver_phone;
        int dev1_handle;
        int dev2_handle;
        int dev3_handle;
        int handle;

        /* Register new driver */
        driver_phone = driver_register("TestDriver");

        if (driver_phone < 0) {
                return "Error: Cannot register driver.\n";      
        }

        /* Register new device dev1*/
        if (EOK != device_register(driver_phone, TEST_DEVICE1, &dev1_handle)) {
                ipc_hangup(driver_phone);
                return "Error: cannot register device.\n";
        }

        /* Get handle for dev2 (Should fail unless device is already 
         * registered by someone else) 
         */
        if (EOK == device_get_handle(driver_phone, TEST_DEVICE2, &handle)) {
                ipc_hangup(driver_phone);
                return "Error: got handle for dev2 before it was registered.\n";
        }

        /* Register new device dev2*/
        if (EOK != device_register(driver_phone, TEST_DEVICE2, &dev2_handle)) {
                ipc_hangup(driver_phone);
                return "Error: cannot register device dev2.\n";
        }

        /* Register again device dev1 */
        if (EOK == device_register(driver_phone, TEST_DEVICE1, &dev3_handle)) {
                return "Error: dev1 registered twice.\n";
        }

        /* Get handle for dev1*/
        if (EOK != device_get_handle(driver_phone, TEST_DEVICE1, &handle)) {
                ipc_hangup(driver_phone);
                return "Error: cannot get handle for 'DEVMAP_DEVICE1'.\n";
        }

        if (handle != dev1_handle) {
                ipc_hangup(driver_phone);
                return "Error: cannot get handle for 'DEVMAP_DEVICE1'.\n";
        }

        if (EOK != device_client(dev1_handle)) {
                ipc_hangup(driver_phone);
                return "Error: failed client test for 'DEVMAP_DEVICE1'.\n";
        }

        /* TODO: */

        ipc_hangup(driver_phone);

        return NULL;
}

char *test_devmap2(bool quiet)
{
        /*TODO: Full automatic test */
        return NULL;
}

char *test_devmap3(bool quiet)
{
        /* TODO: allow user to call test functions in random order */
        return NULL;
}