pci_cmd.c File Reference

PCI commands. More...

#include <stdio.h>
#include <string.h>
#include <errno.h>
#include <getopt.h>
#include <ipxe/pci.h>
#include <ipxe/command.h>
#include <ipxe/parseopt.h>

Go to the source code of this file.

Data Structures
struct	pciscan_options
	"pciscan" options More...

Functions
	FILE_LICENCE (GPL2_OR_LATER_OR_UBDL)
	FILE_SECBOOT (PERMITTED)
static int	pciscan_exec (int argc, char **argv)
	"pciscan" command
	COMMAND (pciscan, pciscan_exec)
	PCI commands.

Variables
static struct option_descriptor	pciscan_opts [] = {}
	"pciscan" option list
static struct command_descriptor	pciscan_cmd
	"pciscan" command descriptor

Detailed Description

PCI commands.

Definition in file pci_cmd.c.

Function Documentation

FILE_LICENCE()

FILE_LICENCE

(

GPL2_OR_LATER_OR_UBDL

)

FILE_SECBOOT()

FILE_SECBOOT

(

PERMITTED

)

pciscan_exec()

int pciscan_exec ( int argc, char ** argv )

static

"pciscan" command

Parameters

argc	Argument count
argv	Argument list

Return values

rc	Return status code

Definition at line 59 of file pci_cmd.c.

                                                  {
        struct pciscan_options opts;
        struct named_setting setting;
        struct pci_device pci;
        unsigned long prev;
        uint32_t busdevfn;
        int len;
        int rc;
 
        /* Parse options */
        if ( ( rc = parse_options ( argc, argv, &pciscan_cmd, &opts ) ) != 0 )
                goto err_parse_options;
 
        /* Parse setting name */
        if ( ( rc = parse_autovivified_setting ( argv[optind],
                                                 &setting ) ) != 0 )
                goto err_parse_setting;
 
        /* Determine starting bus:dev.fn address */
        if ( ( len = fetchn_setting ( setting.settings, &setting.setting,
                                      NULL, &setting.setting, &prev ) ) < 0 ) {
                /* Setting not yet defined: start searching from 00:00.0 */
                busdevfn = 0;
        } else {
                /* Setting is defined: start searching from next location */
                busdevfn = ( prev + 1 );
                if ( ! busdevfn ) {
                        rc = -ENOENT;
                        goto err_end;
                }
        }
 
        /* Find next existent PCI device */
        if ( ( rc = pci_find_next ( &pci, &busdevfn ) ) != 0 )
                goto err_find_next;
 
        /* Apply default type if necessary.  Use ":uint16" rather than
         * ":busdevfn" to allow for easy inclusion within a
         * "${pci/${location}.x.y}" constructed setting.
         */
        if ( ! setting.setting.type )
                setting.setting.type = &setting_type_uint16;
 
        /* Store setting */
        if ( ( rc = storen_setting ( setting.settings, &setting.setting,
                                     busdevfn ) ) != 0 ) {
                printf ( "Could not store \"%s\": %s\n",
                         setting.setting.name, strerror ( rc ) );
                goto err_store;
        }
 
 err_store:
 err_end:
 err_find_next:
 err_parse_setting:
 err_parse_options:
        return rc;
}

References busdevfn, ENOENT, fetchn_setting(), len, setting::name, NULL, optind, opts, parse_autovivified_setting(), parse_options(), pci_find_next(), pciscan_cmd, printf(), rc, storen_setting(), strerror(), and setting::type.

Referenced by COMMAND().

COMMAND()

COMMAND	(	pciscan	,
		pciscan_exec	)

PCI commands.

References pciscan_exec().

Variable Documentation

pciscan_opts

struct option_descriptor pciscan_opts[] = {}

static

"pciscan" option list

Definition at line 45 of file pci_cmd.c.

{};

pciscan_cmd

struct command_descriptor pciscan_cmd

static

Initial value:

=
        COMMAND_DESC ( struct pciscan_options, pciscan_opts, 1, 1,
                       "<setting>" )

"pciscan" command descriptor

Definition at line 48 of file pci_cmd.c.

Referenced by pciscan_exec().