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  • uspace/drv/root/root.c

    r7e752b2 r9f6c5ef0  
    11/*
    22 * Copyright (c) 2010 Lenka Trochtova
     3 * Copyright (c) 2010 Vojtech Horky
    34 * All rights reserved.
    45 *
    … …  
    5354#define NAME "root"
    5455
     56#define PLATFORM_DEVICE_NAME "hw"
     57#define PLATFORM_DEVICE_MATCH_ID STRING(UARCH)
     58#define PLATFORM_DEVICE_MATCH_SCORE 100
     59
     60#define VIRTUAL_DEVICE_NAME "virt"
     61#define VIRTUAL_DEVICE_MATCH_ID "rootvirt"
     62#define VIRTUAL_DEVICE_MATCH_SCORE 100
     63
    5564static int root_add_device(device_t *dev);
    5665
    … …  
    6675};
    6776
     77/** Create the device which represents the root of virtual device tree.
     78 *
     79 * @param parent Parent of the newly created device.
     80 * @return Error code.
     81 */
     82static int add_virtual_root_child(device_t *parent)
     83{
     84        printf(NAME ": adding new child for virtual devices.\n");
     85        printf(NAME ":   device node is `%s' (%d %s)\n", VIRTUAL_DEVICE_NAME,
     86            VIRTUAL_DEVICE_MATCH_SCORE, VIRTUAL_DEVICE_MATCH_ID);
     87
     88        int res = child_device_register_wrapper(parent, VIRTUAL_DEVICE_NAME,
     89            VIRTUAL_DEVICE_MATCH_ID, VIRTUAL_DEVICE_MATCH_SCORE,
     90            NULL);
     91
     92        return res;
     93}
     94
    6895/** Create the device which represents the root of HW device tree.
    6996 *
    … …  
    74101{
    75102        printf(NAME ": adding new child for platform device.\n");
     103        printf(NAME ":   device node is `%s' (%d %s)\n", PLATFORM_DEVICE_NAME,
     104            PLATFORM_DEVICE_MATCH_SCORE, PLATFORM_DEVICE_MATCH_ID);
    76105       
    77         int res = EOK;
    78         device_t *platform = NULL;
    79         match_id_t *match_id = NULL;
    80        
    81         /* Create new device. */
    82         platform = create_device();
    83         if (NULL == platform) {
    84                 res = ENOMEM;
    85                 goto failure;
    86         }       
    87        
    88         platform->name = "hw";
    89         printf(NAME ": the new device's name is %s.\n", platform->name);
    90        
    91         /* Initialize match id list. */
    92         match_id = create_match_id();
    93         if (NULL == match_id) {
    94                 res = ENOMEM;
    95                 goto failure;
    96         }
    97        
    98         /* TODO - replace this with some better solution (sysinfo ?) */
    99         match_id->id = STRING(UARCH);
    100         match_id->score = 100;
    101         add_match_id(&platform->match_ids, match_id);
    102        
    103         /* Register child device. */
    104         res = child_device_register(platform, parent);
    105         if (EOK != res)
    106                 goto failure;
    107        
    108         return res;
    109        
    110 failure:
    111         if (NULL != match_id)
    112                 match_id->id = NULL;
    113        
    114         if (NULL != platform) {
    115                 platform->name = NULL;
    116                 delete_device(platform);
    117         }
    118        
     106        int res = child_device_register_wrapper(parent, PLATFORM_DEVICE_NAME,
     107            PLATFORM_DEVICE_MATCH_ID, PLATFORM_DEVICE_MATCH_SCORE,
     108            NULL);
     109
    119110        return res;
    120111}
    … …  
    130121            dev->handle);
    131122       
     123        /*
     124         * Register virtual devices root.
     125         * We ignore error occurrence because virtual devices shall not be
     126         * vital for the system.
     127         */
     128        add_virtual_root_child(dev);
     129
    132130        /* Register root device's children. */
    133131        int res = add_platform_child(dev);
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