Changeset ea28272 in mainline for uspace/drv/root/root.c


Ignore:
Timestamp:
2010-12-30T13:43:27Z (14 years ago)
Author:
Jiri Svoboda <jiri@…>
Branches:
lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export
Children:
d770deb
Parents:
d70d80ed (diff), f418e51 (diff)
Note: this is a merge changeset, the changes displayed below correspond to the merge itself.
Use the (diff) links above to see all the changes relative to each parent.
Message:

Merge mainline changes.

File:
1 edited

Legend:

Unmodified
Added
Removed

  • uspace/drv/root/root.c

    rd70d80ed rea28272  
    11/*
    22 * Copyright (c) 2010 Lenka Trochtova
     3 * Copyright (c) 2010 Vojtech Horky
    34 * All rights reserved.
    45 *
    … …  
    4647#include <macros.h>
    4748#include <inttypes.h>
     49#include <sysinfo.h>
    4850
    4951#include <driver.h>
    … …  
    5254
    5355#define NAME "root"
     56
     57#define PLATFORM_DEVICE_NAME "hw"
     58#define PLATFORM_DEVICE_MATCH_ID_FMT "platform/%s"
     59#define PLATFORM_DEVICE_MATCH_SCORE 100
     60
     61#define VIRTUAL_DEVICE_NAME "virt"
     62#define VIRTUAL_DEVICE_MATCH_ID "rootvirt"
     63#define VIRTUAL_DEVICE_MATCH_SCORE 100
    5464
    5565static int root_add_device(device_t *dev);
    … …  
    6676};
    6777
     78/** Create the device which represents the root of virtual device tree.
     79 *
     80 * @param parent Parent of the newly created device.
     81 * @return Error code.
     82 */
     83static int add_virtual_root_child(device_t *parent)
     84{
     85        printf(NAME ": adding new child for virtual devices.\n");
     86        printf(NAME ":   device node is `%s' (%d %s)\n", VIRTUAL_DEVICE_NAME,
     87            VIRTUAL_DEVICE_MATCH_SCORE, VIRTUAL_DEVICE_MATCH_ID);
     88
     89        int res = child_device_register_wrapper(parent, VIRTUAL_DEVICE_NAME,
     90            VIRTUAL_DEVICE_MATCH_ID, VIRTUAL_DEVICE_MATCH_SCORE);
     91
     92        return res;
     93}
     94
    6895/** Create the device which represents the root of HW device tree.
    6996 *
    … …  
    73100static int add_platform_child(device_t *parent)
    74101{
     102        char *match_id;
     103        char *platform;
     104        size_t platform_size;
     105        int res;
     106
     107        /* Get platform name from sysinfo. */
     108
     109        platform = sysinfo_get_data("platform", &platform_size);
     110        if (platform == NULL) {
     111                printf(NAME ": Failed to obtain platform name.\n");
     112                return ENOENT;
     113        }
     114
     115        /* Null-terminate string. */
     116        platform = realloc(platform, platform_size + 1);
     117        if (platform == NULL) {
     118                printf(NAME ": Memory allocation failed.\n");
     119                return ENOMEM;
     120        }
     121
     122        platform[platform_size] = '\0';
     123
     124        /* Construct match ID. */
     125
     126        if (asprintf(&match_id, PLATFORM_DEVICE_MATCH_ID_FMT, platform) == -1) {
     127                printf(NAME ": Memory allocation failed.\n");
     128                return ENOMEM;
     129        }
     130
     131        /* Add child. */
     132
    75133        printf(NAME ": adding new child for platform device.\n");
    76        
    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        
     134        printf(NAME ":   device node is `%s' (%d %s)\n", PLATFORM_DEVICE_NAME,
     135            PLATFORM_DEVICE_MATCH_SCORE, match_id);
     136
     137        res = child_device_register_wrapper(parent, PLATFORM_DEVICE_NAME,
     138            match_id, PLATFORM_DEVICE_MATCH_SCORE);
     139
    119140        return res;
    120141}
    … …  
    130151            dev->handle);
    131152       
     153        /*
     154         * Register virtual devices root.
     155         * We ignore error occurrence because virtual devices shall not be
     156         * vital for the system.
     157         */
     158        add_virtual_root_child(dev);
     159
    132160        /* Register root device's children. */
    133161        int res = add_platform_child(dev);
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