aboutsummaryrefslogtreecommitdiff
path: root/chips/atm.c
diff options
context:
space:
mode:
Diffstat (limited to 'chips/atm.c')
-rw-r--r--chips/atm.c302
1 files changed, 0 insertions, 302 deletions
diff --git a/chips/atm.c b/chips/atm.c
deleted file mode 100644
index 165cd233..00000000
--- a/chips/atm.c
+++ /dev/null
@@ -1,302 +0,0 @@
-/*
- * Mach Operating System
- * Copyright (c) 1992 Carnegie Mellon University
- * All Rights Reserved.
- *
- * Permission to use, copy, modify and distribute this software and its
- * documentation is hereby granted, provided that both the copyright
- * notice and this permission notice appear in all copies of the
- * software, derivative works or modified versions, and any portions
- * thereof, and that both notices appear in supporting documentation.
- *
- * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
- * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
- * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
- *
- * Carnegie Mellon requests users of this software to return to
- *
- * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
- * School of Computer Science
- * Carnegie Mellon University
- * Pittsburgh PA 15213-3890
- *
- * any improvements or extensions that they make and grant Carnegie Mellon
- * the rights to redistribute these changes.
- */
-
-#include <atm.h>
-
-#if NATM > 0
-
-#include <vm/vm_kern.h>
-#include <machine/machspl.h> /* spl definitions */
-#include <kern/time_out.h> /* ? maybe */
-#include <device/errno.h>
-#include <device/io_req.h>
-#include <device/net_status.h>
-
-#include <chips/busses.h>
-#include <chips/atmreg.h>
-
-#include <kern/eventcount.h>
-
-#include <mips/mips_cpu.h>
-
-
-struct bus_device *atm_info[NATM];
-int atm_probe();
-static void atm_attach();
-
-struct bus_driver atm_driver =
- { atm_probe, 0, atm_attach, 0, /* csr */ 0, "atm", atm_info,
- "", 0, /* flags */ 0 }; /* ENABLED BUS INTR? */
-
-/* XX "", 0, BUS_INTR_DISABLED}; */
-
-typedef struct atm_softc {
- struct atm_device *atm_dev;
- struct evc atm_eventcounter;
- mapped_atm_info_t atm_mapped_info;
-} atm_softc_t;
-
-
-natural_t atm_nintrs = 0;
-
-atm_softc_t atm_softc[NATM];
-
-atm_probe(reg, ui)
- vm_offset_t reg;
- register struct bus_device *ui;
-{
- register atm_softc_t *atm;
- mapped_atm_info_t info; /* info struct to hand to users */
- vm_offset_t addr;
- int unit = ui->unit;
-
- if (check_memory(reg, 0)) {
- return 0;
- }
-
- atm_info[unit] = ui;
- atm = &atm_softc[unit];
- atm->atm_dev = (struct atm_device *) reg; /* k1 address */
-
- evc_init(&atm->atm_eventcounter);
-
-printf("evc_init of atm: event counter id is %d\n", atm->atm_eventcounter.ev_id);
-
- /* initialize the interface to deliver. No interrupts by default */
- atm->atm_dev->sreg = 0;
- atm->atm_dev->creg = (CR_RX_RESET | CR_TX_RESET);
- atm->atm_dev->creg = 0;
- atm->atm_dev->creg_set = (CR_RX_ENABLE | CR_TX_ENABLE);
-#ifdef notdef
- atm->atm_dev->rxthresh = 0;
- atm->atm_dev->rxtimerv = 0;
- atm->atm_dev->creg_s = RX_EOM_INTR; /* enable interrupt on end of message */
-#endif
-
- /*
- * Grab a page to be mapped later to users
- */
- (void) kmem_alloc_wired(kernel_map, &addr, PAGE_SIZE); /* kseg2 */
- bzero(addr, PAGE_SIZE);
- addr = pmap_extract(pmap_kernel(), addr); /* phys */
- info = (mapped_atm_info_t) PHYS_TO_K0SEG(addr);
- atm->atm_mapped_info = info;
-
- /*
- * Set some permanent info
- */
- info->hello_world = 0xdeadbeef;
- info->interrupt_count = 0;
- info->wait_event = atm->atm_eventcounter.ev_id;
- info->saved_status_reg = 0;
-
- return 1;
-}
-
-static void
-atm_attach(ui)
-register struct bus_device *ui;
-{
-}
-
-int atm_disable_interrupts_after_each = 1;
-
-
-#define ATM_INTERRUPTS (RX_COUNT_INTR | RX_EOM_INTR | RX_TIME_INTR)
-
-atm_intr(unit, spllevel)
-int unit;
-int spllevel;
-{
- register struct atm_softc *atm = &atm_softc[unit];
- struct atm_device *atm_dev = atm->atm_dev;
- unsigned int intr;
-
- if (atm_dev == 0) {
- printf("atm: stray interrupt\n");
- return;
- }
-
- /* Acknowledge interrupt request */
- intr = ATM_READ_REG(atm_dev->sreg);
- atm_dev->sreg = ~(intr & ATM_INTERRUPTS);
-
- /* clear the reason for the interrupt */
- if (atm_disable_interrupts_after_each)
- atm_dev->creg &= ~intr;
-
- splx(spllevel); /* drop priority now */
-
- atm_intr_occurred();
-
-
- /* Pass status info up to user */
- if (atm->atm_mapped_info) {
- atm->atm_mapped_info->interrupt_count++;
- atm->atm_mapped_info->saved_status_reg = intr;
- }
-
- /* Awake user thread */
-
- evc_signal(&atm->atm_eventcounter);
-
- /* NOTE: INTERRUPTS ARE DISABLED. */
-}
-
-atm_intr_occurred()
-{
- atm_nintrs++;
-}
-
-
-atm_output(dev, ior)
-int dev;
-io_req_t ior;
-{
-}
-
-atm_start(unit)
-int unit;
-{
-}
-
-atm_open(dev, flag, ior)
- int dev;
- int flag;
- io_req_t ior;
-{
- register int unit = dev;
- register atm_softc_t *atm = &atm_softc[unit];
-
- if (unit >= NATM)
- return EINVAL;
- if (!atm->atm_dev)
- return ENXIO;
-
- return KERN_SUCCESS;
-}
-
-atm_close(dev, flag)
-int dev;
-{
-}
-
-atm_read(dev, ior)
-int dev;
-io_req_t ior;
-{
-}
-
-atm_write(dev, ior)
-int dev;
-io_req_t ior;
-{
-}
-
-atm_get_status(dev, flavor, status, status_count)
- int dev;
- int flavor;
- dev_status_t status; /* pointer to OUT array */
- natural_t *status_count; /* out */
-{
- switch (flavor) {
- case NET_STATUS:
- {
- register struct net_status *ns = (struct net_status *)status;
-
- ns->min_packet_size = sizeof(struct sar_data);
- ns->max_packet_size = sizeof(struct sar_data);
- ns->header_format = 999; /* XX */
- ns->header_size = sizeof(int); /* XX */
- ns->address_size = 0;
- ns->flags = 0;
- ns->mapped_size = sizeof(struct atm_device) + PAGE_SIZE;
- *status_count = NET_STATUS_COUNT;
- break;
- }
- case NET_ADDRESS:
- /* This would be a good place for it */
- default:
- return (D_INVALID_OPERATION);
- }
- return (D_SUCCESS);
-}
-
-atm_set_status(dev, flavor, status, status_count)
- int dev;
- int flavor;
- dev_status_t status;
- natural_t status_count;
-{
-}
-
-atm_mmap(dev, off, prot)
- int dev;
- vm_offset_t off;
- int prot;
-{
- int unit = dev;
- vm_offset_t addr;
-
- /*
- * Layout of mapped area is:
- * 000 -- FA_END: DEVICE
- * FA_END -- FA_END + PAGE_SIZE: SHARED STATE
- */
- if (off < sizeof(struct atm_device)) {
- addr = K1SEG_TO_PHYS((vm_offset_t)(atm_softc[unit].atm_dev)) + off;
- } else if (off < sizeof(struct atm_device) + PAGE_SIZE) {
- addr = K0SEG_TO_PHYS(atm_softc[unit].atm_mapped_info);
- } else return -1;
- return mips_btop(addr);
-}
-
-atm_setinput(dev, receive_port, priority, filter, filter_count)
- int dev;
- ipc_port_t receive_port;
- int priority;
- /*filter_t *filter;*/
- natural_t filter_count;
-{
-}
-
-atm_restart(ifp)
-/* register struct ifnet *ifp; */
-{
-}
-
-atm_portdeath(dev, port)
- int dev;
- mach_port_t port;
-{
-}
-
-#endif NATM > 0
-
-
-
-
-
generated by cgit v1.2.3 (git 2.39.1) at 2025-04-10 20:50:14 +0000