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Export an interface for presetting the ISA PnP read port address.
Make the EISA ID formatter generally available
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parent
ee99f351b1
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60edbabff6
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=40597
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@ -23,7 +23,7 @@
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $Id: bootstrap.h,v 1.13 1998/10/09 23:11:05 peter Exp $
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* $Id: bootstrap.h,v 1.14 1998/10/21 20:07:04 msmith Exp $
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*/
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#include <sys/types.h>
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@ -125,6 +125,14 @@ extern void pnp_addident(struct pnpinfo *pi, char *ident);
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extern struct pnpinfo *pnp_allocinfo(void);
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extern void pnp_freeinfo(struct pnpinfo *pi);
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extern void pnp_addinfo(struct pnpinfo *pi);
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extern char *pnp_eisaformat(u_int8_t *data);
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/*
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* < 0 - No ISA in system
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* == 0 - Maybe ISA, search for read data port
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* > 0 - ISA in system, value is read data port address
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*/
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extern int isapnp_readport;
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/*
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* Module metadata header.
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@ -24,7 +24,7 @@
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $Id: isapnp.c,v 1.2 1998/09/26 01:29:13 msmith Exp $
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* $Id: isapnp.c,v 1.3 1998/10/21 20:07:04 msmith Exp $
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*/
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/*
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@ -47,7 +47,7 @@ static int isapnp_isolation_protocol(void);
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static void isapnp_enumerate(void);
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/* PnP read data port */
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static int pnp_rd_port;
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int isapnp_readport = 0;
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#define _PNP_ID_LEN 9
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@ -68,7 +68,7 @@ static u_char
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isapnp_read(int d)
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{
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outb (_PNP_ADDRESS, d);
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return (inb(3 | (pnp_rd_port <<2)));
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return (inb(isapnp_readport));
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}
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/*
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@ -104,11 +104,11 @@ isapnp_get_serial(u_int8_t *data)
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bzero(data, _PNP_ID_LEN);
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outb(_PNP_ADDRESS, SERIAL_ISOLATION);
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for (i = 0; i < 72; i++) {
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bit = inb((pnp_rd_port << 2) | 0x3) == 0x55;
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bit = inb(isapnp_readport) == 0x55;
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delay(250); /* Delay 250 usec */
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/* Can't Short Circuit the next evaluation, so 'and' is last */
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bit = (inb((pnp_rd_port << 2) | 0x3) == 0xaa) && bit;
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bit = (inb(isapnp_readport) == 0xaa) && bit;
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delay(250); /* Delay 250 usec */
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valid = valid || bit;
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@ -125,27 +125,6 @@ isapnp_get_serial(u_int8_t *data)
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return valid;
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}
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/*
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* Format a pnp id as a string in standard ISA PnP format, AAAIIRR
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* where 'AAA' is the EISA ID, II is the product ID and RR the revision ID.
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*/
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static char *
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isapnp_format(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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/*
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* Fills the buffer with resource info from the device.
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* Returns nonzero if the device fails to report
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@ -159,7 +138,7 @@ isapnp_get_resource_info(u_int8_t *buffer, int len)
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for (i = 0; i < len; i++) {
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outb(_PNP_ADDRESS, STATUS);
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for (j = 0; j < 100; j++) {
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if ((inb((pnp_rd_port << 2) | 0x3)) & 0x1)
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if ((inb(isapnp_readport)) & 0x1)
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break;
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delay(1);
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}
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@ -168,7 +147,7 @@ isapnp_get_resource_info(u_int8_t *buffer, int len)
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return(1);
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}
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outb(_PNP_ADDRESS, RESOURCE_DATA);
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temp = inb((pnp_rd_port << 2) | 0x3);
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temp = inb(isapnp_readport);
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if (buffer != NULL)
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buffer[i] = temp;
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}
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@ -201,7 +180,7 @@ isapnp_scan_resdata(struct pnpinfo *pi)
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/* Got a compatible device id resource */
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if (isapnp_get_resource_info(resinfo, PNP_SRES_LEN(tag)))
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return(1);
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pnp_addident(pi, isapnp_format(resinfo));
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pnp_addident(pi, pnp_eisaformat(resinfo));
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case END_TAG:
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return(0);
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@ -248,10 +227,8 @@ isapnp_scan_resdata(struct pnpinfo *pi)
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}
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/*
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* Run the isolation protocol. Use pnp_rd_port as the READ_DATA port
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* value (caller should try multiple READ_DATA locations before giving
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* up). Upon exiting, all cards are aware that they should use
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* pnp_rd_port as the READ_DATA port.
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* Run the isolation protocol. Upon exiting, all cards are aware that
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* they should use isapnp_readport as the READ_DATA port.
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*/
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static int
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isapnp_isolation_protocol(void)
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@ -269,7 +246,7 @@ isapnp_isolation_protocol(void)
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for (csn = 1; ; csn++) {
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/* Wake up cards without a CSN (ie. all of them) */
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isapnp_write(WAKE, 0);
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isapnp_write(SET_RD_DATA, pnp_rd_port);
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isapnp_write(SET_RD_DATA, (isapnp_readport >> 2));
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outb(_PNP_ADDRESS, SERIAL_ISOLATION);
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delay(1000); /* Delay 1 msec */
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@ -277,7 +254,7 @@ isapnp_isolation_protocol(void)
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isapnp_write(SET_CSN, csn);
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pi = pnp_allocinfo();
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ndevs++;
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pnp_addident(pi, isapnp_format(cardid));
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pnp_addident(pi, pnp_eisaformat(cardid));
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/* scan the card obtaining all the identifiers it holds */
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if (isapnp_scan_resdata(pi)) {
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pnp_freeinfo(pi); /* error getting data, ignore */
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@ -305,14 +282,38 @@ isapnp_isolation_protocol(void)
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static void
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isapnp_enumerate(void)
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{
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int devs;
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int pnp_rd_port;
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/* Check for I/O port access */
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if ((archsw.arch_isainb == NULL) || (archsw.arch_isaoutb == NULL))
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return;
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for (pnp_rd_port = 0x80; pnp_rd_port < 0xff; pnp_rd_port += 0x10) {
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/*
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* Validate a possibly-suggested read port value. If the autoscan failed
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* last time, this will return us to autoscan mode again.
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*/
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if ((isapnp_readport > 0) &&
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(((isapnp_readport < 0x203) ||
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(isapnp_readport > 0x3ff) ||
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(isapnp_readport & 0x3) != 0x3)))
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/* invalid, go look for ourselves */
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isapnp_readport = 0;
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/* Look for something, quit when we find it */
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if ((devs = isapnp_isolation_protocol()) > 0)
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break;
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if (isapnp_readport < 0) {
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/* someone is telling us there is no ISA in the system */
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return;
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} else if (isapnp_readport > 0) {
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/* Someone has told us where the port is/should be, or we found one last time */
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isapnp_isolation_protocol();
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} else {
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/* No clues, look for it ourselves */
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for (pnp_rd_port = 0x80; pnp_rd_port < 0xff; pnp_rd_port += 0x10) {
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/* Look for something, quit when we find it */
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isapnp_readport = (pnp_rd_port << 2) | 0x3;
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if (isapnp_isolation_protocol() > 0)
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break;
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}
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}
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}
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@ -74,8 +74,8 @@ pnp_scan(int argc, char *argv[])
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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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pager_output("\n");
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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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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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