summaryrefslogtreecommitdiff
path: root/gpxe/src/drivers/bus/eisa.c
diff options
context:
space:
mode:
authorH. Peter Anvin <hpa@zytor.com>2016-02-09 18:08:47 -0800
committerH. Peter Anvin <hpa@zytor.com>2016-02-09 18:08:47 -0800
commitf2f897a1762fab84d2905f32b1c15dd7b42abb56 (patch)
treea38f51d3f1fcbf44afddb4736d549c12eaf491be /gpxe/src/drivers/bus/eisa.c
parent72d2959272b4616f17a97667e6dfa9d06bf109a3 (diff)
downloadsyslinux-f2f897a1762fab84d2905f32b1c15dd7b42abb56.tar.gz
gpxe: delete long since obsolete snapshot of gPXE
gPXE has been deprecated in favor of iPXE for many, many years now. It is much better than users get it directly from the iPXE project, since we should no longer need any special modifications for Syslinux use. Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Diffstat (limited to 'gpxe/src/drivers/bus/eisa.c')
-rw-r--r--gpxe/src/drivers/bus/eisa.c182
1 files changed, 0 insertions, 182 deletions
diff --git a/gpxe/src/drivers/bus/eisa.c b/gpxe/src/drivers/bus/eisa.c
deleted file mode 100644
index b533364b..00000000
--- a/gpxe/src/drivers/bus/eisa.c
+++ /dev/null
@@ -1,182 +0,0 @@
-#include <stdint.h>
-#include <string.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <errno.h>
-#include <gpxe/io.h>
-#include <unistd.h>
-#include <gpxe/eisa.h>
-
-FILE_LICENCE ( GPL2_OR_LATER );
-
-static void eisabus_remove ( struct root_device *rootdev );
-
-/**
- * Reset and enable/disable an EISA device
- *
- * @v eisa EISA device
- * @v enabled 1=enable, 0=disable
- */
-void eisa_device_enabled ( struct eisa_device *eisa, int enabled ) {
- /* Set reset line high for 1000 µs. Spec says 500 µs, but
- * this doesn't work for all cards, so we are conservative.
- */
- outb ( EISA_CMD_RESET, eisa->ioaddr + EISA_GLOBAL_CONFIG );
- udelay ( 1000 ); /* Must wait 800 */
-
- /* Set reset low and write a 1 to ENABLE. Delay again, in
- * case the card takes a while to wake up.
- */
- outb ( enabled ? EISA_CMD_ENABLE : 0,
- eisa->ioaddr + EISA_GLOBAL_CONFIG );
- udelay ( 1000 ); /* Must wait 800 */
-
- DBG ( "EISA %s device %02x\n", ( enabled ? "enabled" : "disabled" ),
- eisa->slot );
-}
-
-/**
- * Probe an EISA device
- *
- * @v eisa EISA device
- * @ret rc Return status code
- *
- * Searches for a driver for the EISA device. If a driver is found,
- * its probe() routine is called.
- */
-static int eisa_probe ( struct eisa_device *eisa ) {
- struct eisa_driver *driver;
- struct eisa_device_id *id;
- unsigned int i;
- int rc;
-
- DBG ( "Adding EISA device %02x (%04x:%04x (\"%s\") io %x)\n",
- eisa->slot, eisa->vendor_id, eisa->prod_id,
- isa_id_string ( eisa->vendor_id, eisa->prod_id ), eisa->ioaddr );
-
- for_each_table_entry ( driver, EISA_DRIVERS ) {
- for ( i = 0 ; i < driver->id_count ; i++ ) {
- id = &driver->ids[i];
- if ( id->vendor_id != eisa->vendor_id )
- continue;
- if ( ISA_PROD_ID ( id->prod_id ) !=
- ISA_PROD_ID ( eisa->prod_id ) )
- continue;
- eisa->driver = driver;
- eisa->driver_name = id->name;
- DBG ( "...using driver %s\n", eisa->driver_name );
- if ( ( rc = driver->probe ( eisa, id ) ) != 0 ) {
- DBG ( "......probe failed\n" );
- continue;
- }
- return 0;
- }
- }
-
- DBG ( "...no driver found\n" );
- return -ENOTTY;
-}
-
-/**
- * Remove an EISA device
- *
- * @v eisa EISA device
- */
-static void eisa_remove ( struct eisa_device *eisa ) {
- eisa->driver->remove ( eisa );
- DBG ( "Removed EISA device %02x\n", eisa->slot );
-}
-
-/**
- * Probe EISA root bus
- *
- * @v rootdev EISA bus root device
- *
- * Scans the EISA bus for devices and registers all devices it can
- * find.
- */
-static int eisabus_probe ( struct root_device *rootdev ) {
- struct eisa_device *eisa = NULL;
- unsigned int slot;
- int rc;
-
- for ( slot = EISA_MIN_SLOT ; slot <= EISA_MAX_SLOT ; slot++ ) {
- /* Allocate struct eisa_device */
- if ( ! eisa )
- eisa = malloc ( sizeof ( *eisa ) );
- if ( ! eisa ) {
- rc = -ENOMEM;
- goto err;
- }
- memset ( eisa, 0, sizeof ( *eisa ) );
- eisa->slot = slot;
- eisa->ioaddr = EISA_SLOT_BASE ( eisa->slot );
-
- /* Test for board present */
- outb ( 0xff, eisa->ioaddr + EISA_VENDOR_ID );
- eisa->vendor_id =
- le16_to_cpu ( inw ( eisa->ioaddr + EISA_VENDOR_ID ) );
- eisa->prod_id =
- le16_to_cpu ( inw ( eisa->ioaddr + EISA_PROD_ID ) );
- if ( eisa->vendor_id & 0x80 ) {
- /* No board present */
- continue;
- }
-
- /* Add to device hierarchy */
- snprintf ( eisa->dev.name, sizeof ( eisa->dev.name ),
- "EISA%02x", slot );
- eisa->dev.desc.bus_type = BUS_TYPE_EISA;
- eisa->dev.desc.vendor = eisa->vendor_id;
- eisa->dev.desc.device = eisa->prod_id;
- eisa->dev.parent = &rootdev->dev;
- list_add ( &eisa->dev.siblings, &rootdev->dev.children );
- INIT_LIST_HEAD ( &eisa->dev.children );
-
- /* Look for a driver */
- if ( eisa_probe ( eisa ) == 0 ) {
- /* eisadev registered, we can drop our ref */
- eisa = NULL;
- } else {
- /* Not registered; re-use struct */
- list_del ( &eisa->dev.siblings );
- }
- }
-
- free ( eisa );
- return 0;
-
- err:
- free ( eisa );
- eisabus_remove ( rootdev );
- return rc;
-}
-
-/**
- * Remove EISA root bus
- *
- * @v rootdev EISA bus root device
- */
-static void eisabus_remove ( struct root_device *rootdev ) {
- struct eisa_device *eisa;
- struct eisa_device *tmp;
-
- list_for_each_entry_safe ( eisa, tmp, &rootdev->dev.children,
- dev.siblings ) {
- eisa_remove ( eisa );
- list_del ( &eisa->dev.siblings );
- free ( eisa );
- }
-}
-
-/** EISA bus root device driver */
-static struct root_driver eisa_root_driver = {
- .probe = eisabus_probe,
- .remove = eisabus_remove,
-};
-
-/** EISA bus root device */
-struct root_device eisa_root_device __root_device = {
- .dev = { .name = "EISA" },
- .driver = &eisa_root_driver,
-};