dc73f9b150
which is #if'ed out since nearly eight years, along with its outdated database. Agreed by: ru (some months ago)
185 lines
3.7 KiB
C
185 lines
3.7 KiB
C
/*
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* mjs copyright
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*
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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/*
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* "Plug and Play" functionality.
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*
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* We use the PnP enumerators to obtain identifiers for installed hardware,
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* and the contents of a database to determine modules to be loaded to support
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* such hardware.
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*/
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#include <stand.h>
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#include <string.h>
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#include <bootstrap.h>
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struct pnpinfo_stql pnp_devices;
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static int pnp_devices_initted = 0;
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static void pnp_discard(void);
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/*
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* Perform complete enumeration sweep
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*/
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COMMAND_SET(pnpscan, "pnpscan", "scan for PnP devices", pnp_scan);
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static int
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pnp_scan(int argc, char *argv[])
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{
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struct pnpinfo *pi;
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int hdlr;
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int verbose;
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int ch;
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if (pnp_devices_initted == 0) {
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STAILQ_INIT(&pnp_devices);
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pnp_devices_initted = 1;
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}
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verbose = 0;
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optind = 1;
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optreset = 1;
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while ((ch = getopt(argc, argv, "v")) != -1) {
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switch(ch) {
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case 'v':
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verbose = 1;
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break;
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case '?':
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default:
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/* getopt has already reported an error */
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return(CMD_OK);
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}
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}
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/* forget anything we think we knew */
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pnp_discard();
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/* iterate over all of the handlers */
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for (hdlr = 0; pnphandlers[hdlr] != NULL; hdlr++) {
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if (verbose)
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printf("Probing %s...\n", pnphandlers[hdlr]->pp_name);
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pnphandlers[hdlr]->pp_enumerate();
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}
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if (verbose) {
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pager_open();
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pager_output("PNP scan summary:\n");
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STAILQ_FOREACH(pi, &pnp_devices, pi_link) {
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pager_output(STAILQ_FIRST(&pi->pi_ident)->id_ident); /* first ident should be canonical */
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if (pi->pi_desc != NULL) {
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pager_output(" : ");
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pager_output(pi->pi_desc);
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}
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pager_output("\n");
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}
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pager_close();
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}
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return(CMD_OK);
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}
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/*
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* Throw away anything we think we know about PnP devices.
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*/
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static void
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pnp_discard(void)
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{
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struct pnpinfo *pi;
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while (STAILQ_FIRST(&pnp_devices) != NULL) {
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pi = STAILQ_FIRST(&pnp_devices);
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STAILQ_REMOVE_HEAD(&pnp_devices, pi_link);
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pnp_freeinfo(pi);
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}
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}
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/*
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* Add a unique identifier to (pi)
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*/
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void
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pnp_addident(struct pnpinfo *pi, char *ident)
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{
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struct pnpident *id;
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STAILQ_FOREACH(id, &pi->pi_ident, id_link)
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if (!strcmp(id->id_ident, ident))
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return; /* already have this one */
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id = malloc(sizeof(struct pnpident));
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id->id_ident = strdup(ident);
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STAILQ_INSERT_TAIL(&pi->pi_ident, id, id_link);
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}
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/*
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* Allocate a new pnpinfo struct
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*/
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struct pnpinfo *
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pnp_allocinfo(void)
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{
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struct pnpinfo *pi;
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pi = malloc(sizeof(struct pnpinfo));
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bzero(pi, sizeof(struct pnpinfo));
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STAILQ_INIT(&pi->pi_ident);
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return(pi);
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}
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/*
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* Release storage held by a pnpinfo struct
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*/
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void
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pnp_freeinfo(struct pnpinfo *pi)
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{
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struct pnpident *id;
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while (!STAILQ_EMPTY(&pi->pi_ident)) {
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id = STAILQ_FIRST(&pi->pi_ident);
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STAILQ_REMOVE_HEAD(&pi->pi_ident, id_link);
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free(id->id_ident);
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free(id);
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}
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if (pi->pi_desc)
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free(pi->pi_desc);
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if (pi->pi_module)
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free(pi->pi_module);
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if (pi->pi_argv)
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free(pi->pi_argv);
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free(pi);
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}
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/*
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* Add a new pnpinfo struct to the list.
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*/
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void
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pnp_addinfo(struct pnpinfo *pi)
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{
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STAILQ_INSERT_TAIL(&pnp_devices, pi, pi_link);
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}
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/*
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* Format an EISA id as a string in standard ISA PnP format, AAAIIRR
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* where 'AAA' is the EISA vendor ID, II is the product ID and RR the revision ID.
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*/
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char *
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pnp_eisaformat(u_int8_t *data)
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{
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static char idbuf[8];
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const char hextoascii[] = "0123456789abcdef";
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idbuf[0] = '@' + ((data[0] & 0x7c) >> 2);
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idbuf[1] = '@' + (((data[0] & 0x3) << 3) + ((data[1] & 0xe0) >> 5));
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idbuf[2] = '@' + (data[1] & 0x1f);
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idbuf[3] = hextoascii[(data[2] >> 4)];
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idbuf[4] = hextoascii[(data[2] & 0xf)];
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idbuf[5] = hextoascii[(data[3] >> 4)];
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idbuf[6] = hextoascii[(data[3] & 0xf)];
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idbuf[7] = 0;
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return(idbuf);
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}
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