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mirror of https://git.FreeBSD.org/src.git synced 2024-12-24 11:29:10 +00:00
freebsd/sys/dev/hfa/fore_load.c
2000-10-15 14:19:01 +00:00

642 lines
13 KiB
C

/*
*
* ===================================
* HARP | Host ATM Research Platform
* ===================================
*
*
* This Host ATM Research Platform ("HARP") file (the "Software") is
* made available by Network Computing Services, Inc. ("NetworkCS")
* "AS IS". NetworkCS does not provide maintenance, improvements or
* support of any kind.
*
* NETWORKCS MAKES NO WARRANTIES OR REPRESENTATIONS, EXPRESS OR IMPLIED,
* INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY
* AND FITNESS FOR A PARTICULAR PURPOSE, AS TO ANY ELEMENT OF THE
* SOFTWARE OR ANY SUPPORT PROVIDED IN CONNECTION WITH THIS SOFTWARE.
* In no event shall NetworkCS be responsible for any damages, including
* but not limited to consequential damages, arising from or relating to
* any use of the Software or related support.
*
* Copyright 1994-1998 Network Computing Services, Inc.
*
* Copies of this Software may be made, however, the above copyright
* notice must be reproduced on all copies.
*
* @(#) $FreeBSD$
*
*/
/*
* FORE Systems 200-Series Adapter Support
* ---------------------------------------
*
* Loadable kernel module and device identification support
*
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/types.h>
#include <sys/errno.h>
#include <sys/time.h>
#include <sys/kernel.h>
#include <sys/socket.h>
#include <sys/socketvar.h>
#include <sys/syslog.h>
#include <sys/eventhandler.h>
#include <net/if.h>
#include <netatm/port.h>
#include <netatm/queue.h>
#include <netatm/atm.h>
#include <netatm/atm_sys.h>
#include <netatm/atm_sap.h>
#include <netatm/atm_cm.h>
#include <netatm/atm_if.h>
#include <netatm/atm_stack.h>
#include <netatm/atm_pcb.h>
#include <netatm/atm_var.h>
#include <pci/pcireg.h>
#include <pci/pcivar.h>
#include <dev/hfa/fore.h>
#include <dev/hfa/fore_aali.h>
#include <dev/hfa/fore_slave.h>
#include <dev/hfa/fore_stats.h>
#include <dev/hfa/fore_var.h>
#include <dev/hfa/fore_include.h>
#ifndef lint
__RCSID("@(#) $FreeBSD$");
#endif
/*
* Local functions
*/
static int fore_start __P((void));
static const char * fore_pci_probe __P((pcici_t, pcidi_t));
static void fore_pci_attach __P((pcici_t, int));
static void fore_pci_shutdown __P((void *, int));
static void fore_unattach __P((Fore_unit *));
static void fore_reset __P((Fore_unit *));
/*
* Local variables
*/
static int fore_inited = 0;
/*
* Driver entry points
*/
static u_long fore_pci_count = 0;
static struct pci_device fore_pci_device = {
FORE_DEV_NAME,
fore_pci_probe,
fore_pci_attach,
&fore_pci_count,
NULL
};
COMPAT_PCI_DRIVER(fore_pci, fore_pci_device);
/*
* Initialize driver processing
*
* This will be called during module loading. Not much to do here, as
* we must wait for our identify/attach routines to get called before
* we know what we're in for.
*
* Arguments:
* none
*
* Returns:
* 0 startup was successful
* errno startup failed - reason indicated
*
*/
static int
fore_start()
{
/*
* Verify software version
*/
if (atm_version != ATM_VERSION) {
log(LOG_ERR, "version mismatch: fore=%d.%d kernel=%d.%d\n",
ATM_VERS_MAJ(ATM_VERSION), ATM_VERS_MIN(ATM_VERSION),
ATM_VERS_MAJ(atm_version), ATM_VERS_MIN(atm_version));
return (EINVAL);
}
/*
* Initialize DMA mapping
*/
DMA_INIT();
/*
* Start up watchdog timer
*/
atm_timeout(&fore_timer, ATM_HZ * FORE_TIME_TICK, fore_timeout);
fore_inited = 1;
return (0);
}
/*
* Device probe routine
*
* Determine if this driver will support the identified device. If we claim
* to support the device, our attach routine will (later) be called for the
* device.
*
* Arguments:
* config_id device's PCI configuration ID
* device_id device's PCI Vendor/Device ID
*
* Returns:
* name device identification string
* NULL device not claimed by this driver
*
*/
static const char *
fore_pci_probe(config_id, device_id)
pcici_t config_id;
pcidi_t device_id;
{
/*
* Initialize driver stuff
*/
if (fore_inited == 0) {
if (fore_start())
return (NULL);
}
if ((device_id & 0xffff) != FORE_VENDOR_ID)
return (NULL);
if (((device_id >> 16) & 0xffff) == FORE_PCA200E_ID)
return ("FORE Systems PCA-200E ATM");
return (NULL);
}
/*
* Device attach routine
*
* Attach a device we've previously claimed to support. Walk through its
* register set and map, as required. Determine what level the device will
* be interrupting at and then register an interrupt handler for it. If we
* succeed, then reset the adapter and initialize the microcode.
* Last, register the interface with the kernel ATM services.
*
* Arguments:
* config_id device's PCI configuration ID
* unit device unit number
*
* Returns:
* none
*
*/
static void
fore_pci_attach(config_id, unit)
pcici_t config_id;
int unit;
{
Fore_unit *fup;
vm_offset_t va;
vm_offset_t pa;
pcidi_t device_id;
long val;
int err_count = BOOT_LOOPS;
/*
* Just checking...
*/
if (unit >= FORE_MAX_UNITS) {
log(LOG_ERR, "%s%d: too many devices\n",
FORE_DEV_NAME, unit);
return;
}
/*
* Make sure this isn't a duplicate unit
*/
if (fore_units[unit] != NULL)
return;
/*
* Allocate a new unit structure
*/
fup = (Fore_unit *) atm_dev_alloc(sizeof(Fore_unit), sizeof(int), 0);
if (fup == NULL)
return;
/*
* Start initializing it
*/
fup->fu_unit = unit;
fup->fu_mtu = FORE_IFF_MTU;
fup->fu_pcitag = config_id;
fup->fu_vcc_pool = &fore_vcc_pool;
fup->fu_nif_pool = &fore_nif_pool;
fup->fu_ioctl = fore_atm_ioctl;
fup->fu_instvcc = fore_instvcc;
fup->fu_openvcc = fore_openvcc;
fup->fu_closevcc = fore_closevcc;
fup->fu_output = fore_output;
callout_handle_init(&fup->fu_thandle);
/*
* Get our device type
*/
device_id = pci_conf_read ( config_id, PCI_ID_REG );
switch ((device_id >> 16) & 0xffff) {
case FORE_PCA200E_ID:
fup->fu_config.ac_device = DEV_FORE_PCA200E;
break;
default:
fup->fu_config.ac_device = DEV_UNKNOWN;
}
/*
* Enable Memory Mapping / Bus Mastering
*/
val = pci_conf_read(config_id, PCI_COMMAND_STATUS_REG);
val |= (PCIM_CMD_MEMEN | PCIM_CMD_BUSMASTEREN);
pci_conf_write(config_id, PCI_COMMAND_STATUS_REG, val);
/*
* Map RAM
*/
val = pci_conf_read(config_id, PCI_COMMAND_STATUS_REG);
if ((val & PCIM_CMD_MEMEN) == 0) {
log(LOG_ERR, "%s%d: memory mapping not enabled\n",
FORE_DEV_NAME, unit);
goto failed;
}
if ((pci_map_mem(config_id, PCA200E_PCI_MEMBASE, &va, &pa)) == 0) {
log(LOG_ERR, "%s%d: unable to map memory\n",
FORE_DEV_NAME, unit);
goto failed;
}
fup->fu_ram = (Fore_mem *)va;
fup->fu_ramsize = PCA200E_RAM_SIZE;
fup->fu_mon = (Mon960 *)(fup->fu_ram + MON960_BASE);
fup->fu_ctlreg = (Fore_reg *)(va + PCA200E_HCR_OFFSET);
fup->fu_imask = (Fore_reg *)(va + PCA200E_IMASK_OFFSET);
fup->fu_psr = (Fore_reg *)(va + PCA200E_PSR_OFFSET);
/*
* Convert Endianess of Slave RAM accesses
*/
val = pci_conf_read(config_id, PCA200E_PCI_MCTL);
val |= PCA200E_MCTL_SWAP;
pci_conf_write(config_id, PCA200E_PCI_MCTL, val);
/*
* Map interrupt in
*/
if ( !pci_map_int( config_id, fore_intr, fup, &net_imask ) ) {
log(LOG_ERR, "%s%d: unable to map interrupt\n",
FORE_DEV_NAME, unit);
goto failed;
}
/*
* Poke the hardware - boot the CP and prepare it for downloading
*/
fore_reset(fup);
/*
* Wait for the monitor to perform self-test
*/
while (CP_READ(fup->fu_mon->mon_bstat) != BOOT_MONREADY) {
if (CP_READ(fup->fu_mon->mon_bstat) == BOOT_FAILTEST) {
log(LOG_ERR, "%s%d: failed self-test\n",
FORE_DEV_NAME, unit);
goto failed;
} else if ( --err_count == 0 ) {
log(LOG_ERR, "%s%d: unable to boot - status=0x%lx\n",
FORE_DEV_NAME, unit,
(u_long)CP_READ(fup->fu_mon->mon_bstat));
goto failed;
}
DELAY ( BOOT_DELAY );
}
/*
* Setup the adapter config info - at least as much as we can
*/
fup->fu_config.ac_vendor = VENDOR_FORE;
fup->fu_config.ac_vendapi = VENDAPI_FORE_1;
fup->fu_config.ac_media = MEDIA_OC3C;
fup->fu_pif.pif_pcr = ATM_PCR_OC3C;
fup->fu_config.ac_bustype = BUS_PCI;
fup->fu_config.ac_busslot = config_id->bus << 8 | config_id->slot;
/*
* Save device ram info for user-level programs
*/
fup->fu_config.ac_ram = (long)fup->fu_ram;
fup->fu_config.ac_ramsize = fup->fu_ramsize;
/*
* Set device capabilities
*/
fup->fu_pif.pif_maxvpi = FORE_MAX_VPI;
fup->fu_pif.pif_maxvci = FORE_MAX_VCI;
/*
* Register this interface with ATM core services
*/
if ( atm_physif_register
((Cmn_unit *)fup, FORE_DEV_NAME, fore_services) != 0 )
{
/*
* Registration failed - back everything out
*/
goto failed;
}
fore_units[unit] = fup;
fore_nunits++;
/*
* Add hook to our shutdown function
*/
EVENTHANDLER_REGISTER(shutdown_post_sync, fore_pci_shutdown, fup,
SHUTDOWN_PRI_DEFAULT);
/*
* Initialize the CP microcode program.
*/
fore_initialize(fup);
return;
failed:
/*
* Unattach the device from the system
*/
fore_unattach(fup);
/*
* Free any Fore-specific device resources
*/
fore_interface_free(fup);
atm_dev_free(fup);
return;
}
/*
* Device shutdown routine
*
* Arguments:
* howto type of shutdown
* fup pointer to device unit structure
*
* Returns:
* none
*
*/
static void
fore_pci_shutdown(fup, howto)
void *fup;
int howto;
{
fore_reset((Fore_unit *) fup);
return;
}
/*
* Device unattach routine
*
* Reset the physical device, remove any pending timeouts,
* unmap any register sets, and unregister any interrupts.
*
* Arguments:
* fup pointer to device unit structure
*
* Returns:
* none
*/
static void
fore_unattach(fup)
Fore_unit *fup;
{
/*
* Reset the board and return it to cold_start state.
* Hopefully, this will prevent use of resources as
* we're trying to free things up.
*/
fore_reset(fup);
/*
* Lock out all device interrupts
*/
DEVICE_LOCK((Cmn_unit *)fup);
/*
* Remove any pending timeout()'s
*/
(void)untimeout((KTimeout_ret(*) __P((void *)))fore_initialize,
(void *)fup, fup->fu_thandle);
/*
* Unmap the device interrupt
*/
(void) pci_unmap_int(fup->fu_pcitag);
/*
* Unmap memory
*/
#ifdef notdef
(void) pci_unmap_mem(fup->fu_pcitag, PCA200E_PCI_MEMBASE);
#endif
DEVICE_UNLOCK((Cmn_unit *)fup);
}
/*
* Device reset routine
*
* Reset the physical device
*
* Arguments:
* fup pointer to device unit structure
*
* Returns:
* none
*/
static void
fore_reset(fup)
Fore_unit *fup;
{
int s = splimp();
/*
* Reset the board and return it to cold_start state
*/
if (fup->fu_mon)
fup->fu_mon->mon_bstat = CP_WRITE(BOOT_COLDSTART);
if (fup->fu_ctlreg) {
switch (fup->fu_config.ac_device) {
case DEV_FORE_PCA200E:
/*
* Reset i960 by setting and clearing RESET
*/
PCA200E_HCR_INIT(*fup->fu_ctlreg, PCA200E_RESET);
DELAY(10000);
PCA200E_HCR_CLR(*fup->fu_ctlreg, PCA200E_RESET);
break;
}
}
(void) splx(s);
return;
}
#ifndef ATM_LINKED
/*
*******************************************************************
*
* Loadable Module Support
*
*******************************************************************
*/
#ifdef notdef
/*
* Driver entry points
*/
static struct cdevsw fore_cdev = {
/* open */ noopen,
/* close */ noclose,
/* read */ noread,
/* write */ nowrite,
/* ioctl */ noioctl,
/* poll */ nopoll,
/* mmap */ nommap,
/* strategy */ nostrategy,
/* name */ noname,
/* maj */ -1,
/* dump */ nodump,
/* psize */ nopsize,
/* flags */ 0,
/* bmaj */ -1
};
/*
* Loadable device driver module description
*/
MOD_DEV(fore, LM_DT_CHAR, -1, (void *)&fore_cdev);
/*
* Loadable module support "load" entry point
*
* This is the routine called by the lkm driver whenever the
* modload(1) command is issued for this module.
*
* Arguments:
* lkmtp pointer to lkm drivers's structure
* cmd lkm command code
*
* Returns:
* 0 command was successful
* errno command failed - reason indicated
*
*/
static int
fore_load(lkmtp, cmd)
struct lkm_table *lkmtp;
int cmd;
{
return(fore_doload());
}
/*
* Loadable module support "unload" entry point
*
* This is the routine called by the lkm driver whenever the
* modunload(1) command is issued for this module.
*
* Arguments:
* lkmtp pointer to lkm drivers's structure
* cmd lkm command code
*
* Returns:
* 0 command was successful
* errno command failed - reason indicated
*
*/
static int
fore_unload(lkmtp, cmd)
struct lkm_table *lkmtp;
int cmd;
{
return(fore_dounload());
}
/*
* Loadable module support entry point
*
* This is the routine called by the lkm driver for all loadable module
* functions for this driver. This routine name must be specified
* on the modload(1) command. This routine will be called whenever the
* modload(1), modunload(1) or modstat(1) commands are issued for this
* module.
*
* Arguments:
* lkmtp pointer to lkm drivers's structure
* cmd lkm command code
* ver lkm version
*
* Returns:
* 0 command was successful
* errno command failed - reason indicated
*
*/
int
fore_mod(lkmtp, cmd, ver)
struct lkm_table *lkmtp;
int cmd;
int ver;
{
DISPATCH(lkmtp, cmd, ver, fore_load, fore_unload, lkm_nullcmd);
}
#endif /* notdef */
#endif /* ATM_LINKED */