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    Annotation of /trunk/mkinitrd-magellan/busybox/util-linux/lspci.c

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    Revision 1123 - (hide annotations) (download)
    Wed Aug 18 21:56:57 2010 UTC (13 years, 9 months ago) by niro
    File MIME type: text/plain
    File size: 2400 byte(s) 
    -updated to busybox-1.17.1
    1 niro 984 /* vi: set sw=4 ts=4: */
    2     /*
    3 niro 1123 * lspci implementation for busybox
    4     *
    5     * Copyright (C) 2009 Malek Degachi <malek-degachi@laposte.net>
    6     *
    7     * Licensed under the GPL v2 or later, see the file LICENSE in this tarball.
    8     */
    9     #include "libbb.h"
    10 niro 984
    11     enum {
    12     OPT_m = (1 << 0),
    13     OPT_k = (1 << 1),
    14     };
    15    
    16     /*
    17     * PCI_SLOT_NAME PCI_CLASS: PCI_VID:PCI_DID [PCI_SUBSYS_VID:PCI_SUBSYS_DID] [DRIVER]
    18     */
    19     static int FAST_FUNC fileAction(
    20     const char *fileName,
    21     struct stat *statbuf UNUSED_PARAM,
    22     void *userData UNUSED_PARAM,
    23     int depth UNUSED_PARAM)
    24     {
    25     parser_t *parser;
    26     char *tokens[3];
    27     char *pci_slot_name = NULL, *driver = NULL;
    28     int pci_class = 0, pci_vid = 0, pci_did = 0;
    29     int pci_subsys_vid = 0, pci_subsys_did = 0;
    30    
    31     char *uevent_filename = concat_path_file(fileName, "/uevent");
    32     parser = config_open2(uevent_filename, fopen_for_read);
    33     free(uevent_filename);
    34    
    35     while (config_read(parser, tokens, 3, 2, "\0:=", PARSE_NORMAL)) {
    36     if (strcmp(tokens[0], "DRIVER") == 0) {
    37     driver = xstrdup(tokens[1]);
    38     continue;
    39     }
    40    
    41     if (strcmp(tokens[0], "PCI_CLASS") == 0) {
    42     pci_class = xstrtou(tokens[1], 16)>>8;
    43     continue;
    44     }
    45    
    46     if (strcmp(tokens[0], "PCI_ID") == 0) {
    47     pci_vid = xstrtou(tokens[1], 16);
    48     pci_did = xstrtou(tokens[2], 16);
    49     continue;
    50     }
    51    
    52     if (strcmp(tokens[0], "PCI_SUBSYS_ID") == 0) {
    53     pci_subsys_vid = xstrtou(tokens[1], 16);
    54     pci_subsys_did = xstrtou(tokens[2], 16);
    55     continue;
    56     }
    57    
    58     if (strcmp(tokens[0], "PCI_SLOT_NAME") == 0) {
    59     pci_slot_name = xstrdup(tokens[2]);
    60     continue;
    61     }
    62     }
    63     config_close(parser);
    64    
    65    
    66     if (option_mask32 & OPT_m) {
    67     printf("%s \"Class %04x\" \"%04x\" \"%04x\" \"%04x\" \"%04x\"",
    68     pci_slot_name, pci_class, pci_vid, pci_did,
    69     pci_subsys_vid, pci_subsys_did);
    70     } else {
    71     printf("%s Class %04x: %04x:%04x",
    72     pci_slot_name, pci_class, pci_vid, pci_did);
    73     }
    74    
    75     if ((option_mask32 & OPT_k) && driver) {
    76     if (option_mask32 & OPT_m) {
    77     printf(" \"%s\"", driver);
    78     } else {
    79     printf(" %s", driver);
    80     }
    81     }
    82     bb_putchar('\n');
    83    
    84     free(driver);
    85     free(pci_slot_name);
    86    
    87     return TRUE;
    88     }
    89    
    90     int lspci_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
    91     int lspci_main(int argc UNUSED_PARAM, char **argv)
    92     {
    93     getopt32(argv, "m" /*non-compat:*/ "k" /*ignored:*/ "nv");
    94    
    95     recursive_action("/sys/bus/pci/devices",
    96     ACTION_RECURSE,
    97     fileAction,
    98     NULL, /* dirAction */
    99     NULL, /* userData */
    100     0 /* depth */);
    101    
    102     return EXIT_SUCCESS;
    103     }