minix/netbsd
1
0
Fork 0
mirror of https://github.com/Stichting-MINIX-Research-Foundation/netbsd.git synced 2025-08-10 06:29:51 -04:00
Code Issues Packages Projects Releases Wiki Activity
netbsd/sys/dev/pci/n8/common/config.c
Lionel Sambuc db4f849365 2015/10/10 12:00:00 UTC
2015-10-15 10:25:28 +02:00

822 lines
29 KiB
C
Raw Permalink Blame History

/*-
* Copyright (C) 2001-2003 by NBMK Encryption Technologies.
* All rights reserved.
*
* NBMK Encryption Technologies provides no support of any kind for
* this software. Questions or concerns about it may be addressed to
* the members of the relevant open-source community at
* <tech-crypto@netbsd.org>.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
static char const n8_id[] = "$Id: config.c,v 1.4 2015/04/13 16:33:25 riastradh Exp $";
/*****************************************************************************/
/** @file config.c
* @brief NSP2000 Device Driver Configuration Manager.
*
* This file implements the configuration management routines for the NSP2000
* device driver.
*
*****************************************************************************/
/*****************************************************************************
* Revision history:
* 02/15/04 jpw Dynamically allocate queue size based on the number of
* chips installed as counted by NSPcount_g. Note that FreeBSD
* currently requires this value to be forced since it doesn't
* know how to properly count devices.
* 05/15/03 brr Enable RNG interrupt, enable interrupts only in
* n8_enableInterrupts().
* 05/09/03 brr Add user pool count to driver infomation.
* 05/07/03 brr Do not fail HW resource allocation if SKS is not present.
* 04/30/03 brr Reconcile differences between 2.4 & 3.0 baselines.
* 04/21/03 brr Added support for multiple memory banks.
* 03/19/03 brr Modified N8_ConfigInterrupts to always enble the AMBA timer
* and the PK command complete interrupt.
* 03/03/03 jpw Added N8_EnableAmbaTimer_g param to N8_ConfigInterrupts
* 03/11/03 brr Added N8_CloseDevice so N8_InitializeAPI can be common.
* 03/10/03 brr Added N8_OpenDevice so N8_InitializeAPI can be common.
* 02/20/03 brr Removed references to shared memory.
* 11/25/02 brr Reworked initialization to us common functions to allocate
* all resources for NSP2000 driver and each chip.
* 10/23/02 brr Modified N8_ConfigInterrupts to accept parameter for
* the AMBA timer preset.
* 10/25/02 brr Clean up function prototypes & include files.
* 10/22/02 brr Retrieve driverMode in N8_GetConfig.
* 09/25/02 brr Eliminate references to EVENT_WAIT_TYPE.
* 09/10/02 brr Conditionally enable either the amba timer interrupt or
* the command completion interrupts.
* 07/08/02 brr Added N8_GetFD to return NULL fd for kernel API.
* 06/26/02 brr Remove bank parameter from calls to N8_PhysToVirt.
* 06/25/02 brr Rework user pool allocation to only mmap portion used by
* the individual process.
* 06/12/02 hml Calls to N8_PhysToVirt now take the bank parameter.
* 06/10/02 hml Calls to pmalloc now use the bank parameter
* 06/07/02 brr Call SKS_Remove to deallocate SKS resources.
* 05/30/02 brr Enable interrupts for error conditions.
* 05/22/02 hml Passed memCtlBank parameter to call to n8_pmalloc
* and n8_pfree.
* 05/09/02 brr Allocate and setup BNC constants.
* 05/02/02 brr Call SKS_Init to perform all SKS initialization. Do not
* allocate SKS map from memory pool.
* 04/03/02 brr Use N8_VERSION as defined in n8_version.h.
* 04/03/02 spm Removed #include of daemon headers.
* 03/29/02 brr Modified N8_ConfigInterrupts to use N8_AMBA_TIMER_CHIP.
* 03/20/02 msz Don't do consecutive 32 bit writes.
* 03/20/02 brr Modified N8_ConfigInterrupts to configure & enable
* interrupts on all detected devices.
* 03/19/02 msz Shadow memory is now called shared memory, and is not
* allocated here.
* 03/18/02 brr Pass null session ID into pmalloc function.
* 03/18/02 msz We no longer need the shadow queue nor its memory
* 03/12/02 brr Moved daemon initialization to base.c
* 03/08/02 brr Memset SKS & shadow memory allocations to zero since
* n8_pmalloc is no longer clearing allocations.
* 03/01/02 brr Added N8_DisableInterrupts.
* 02/22/02 spm Converted printk's to DBG's. Added include of n8_OS_intf.h
* 02/25/02 brr Removed references to qmgrData & modified N8_GetConfig to
* return all driver information in a single call.
* 02/15/02 brr Moved context memory functions to contextMem.c.
* 02/14/02 brr Reconcile memory management differences with 2.0.
* 02/04/02 msz Enable interrupts for errors, pass hwidx so timer is enabled
* only on first nsp.
* 01/25/02 bac Added include of bigalloc_support.h as required.
* 01/30/02 brr Modified to support changes in bigalloc.
* 01/21/02 msz Set up event wait type based on header options
* 01/21/02 brr Modified to remove the mmap on each buffer on allocation.
* 02/13/02 brr Conditionally initialize the daemon.
* 02/15/02 brr Moved context memory functions to contextMem.c.
* 01/21/02 spm Moved SKS_Prom2Cache to n8_sksInit.c.
* 01/19/02 spm Changed n8_daemon_kernel.h to n8_daemon_internals.h
* 01/17/02 spm Added call to n8_daemon_init to N8_AllocateHardwareResources.
* This does initialization of the N8 daemon.
* 01/17/02 brr Updated for new memory management scheme.
* 01/16/02 brr Removed FPGA support.
* 01/14/02 brr Correctly pass shadow register pointers to QMGR.
* 01/10/02 mmd Removed fixed context memory size. Modified
* N8_GetContextMemSize to simply return a size, and no longer
* return any kind of error. If Context Memory accesses fail,
* it now indicates 0 bytes available. Corrected the Context
* memory read/write routines to correctly read/write (no longer
* clearing pending ops, and no longer sleeping, but instead
* expecting any pending ops to complete within a reasonable
* time).
* 01/10/02 msz Disable bridge timer when we are done.
* 01/03/02 brr Setup and enable bridge timer.
* 12/21/01 brr Fix context memory size to 64MB.
* 12/20/01 brr Perform all static allocation with sessionID 0.
* 12/18/01 brr Perform all static allocation from n8_pmalloc.
* 12/14/01 brr Support dynamic queue sizing & memory management performance
* improvements.
* 12/06/01 brr Added seperate define for RNG queue sizing, moved SKS init
* to the driver, and correct context memory detection.
* 12/05/01 brr Move queue initialization to the driver.
* 11/26/01 mmd Updated parms for N8_ConfigInit to accomodate new PCIinfo
* field of NspInstance_t. Generally updated N8_ConfigInit and
* N8_GetConfig to ensure full support of both ASIC and FPGA.
* 11/14/01 mmd Using global parm defines from n8_driver_parms.h.
* 11/13/01 mmd Implemented N8_AllocateHardwareResources and
* N8_ReleaseHardwareResources;
* 11/10/01 brr Modified to support static allocations of persistant data
* by the driver.
* 11/06/01 mmd Now calls admxrc_eeprom_read to determine values for
* FPGA_Type and FPGA_CrystalType.
* 10/29/01 mmd N8_OpenRulesChecker now uses N8_UTIL_MALLOC instead of
* N8_VIRT_MALLOC. N8_CloseRulesChecker now uses N8_UTIL_FREE.
* 10/22/01 mmd Implemented N8_ClaimHardwareInstance and
* N8_ReleaseHardwareInstance.
* 10/12/01 mmd Renamed Atomic*() routines to N8_Atomic*().
* 10/12/01 mmd Implemented N8_OpenRulesChecker, N8_CloseRulesChecker, and
* N8_PurgeNextRelatedSession, as well as the global process
* table. Also now initializing the programmed field of
* NspInstance_t.
* 09/25/01 mmd Creation.
****************************************************************************/
/** @defgroup NSP2000Driver NSP2000 Device Driver Configuration Manager.
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/proc.h>
#include <sys/endian.h>
#ifdef __NetBSD__
#define letoh16 htole16
#define letoh32 htole32
#endif
#include <sys/errno.h>
#include <sys/malloc.h>
#include <sys/kernel.h>
#include <sys/mbuf.h>
#include <sys/device.h>
#include <sys/queue.h>
#include <sys/module.h>
#include <sys/bus.h>
#include <opencrypto/cryptodev.h>
#include <opencrypto/xform.h>
#include <sys/md5.h>
#include <sys/sha1.h>
#include <dev/pci/pcireg.h>
#include <dev/pci/pcivar.h>
#include <dev/pci/pcidevs.h>
#include "n8_pub_errors.h"
#include "n8_driver_main.h"
#include "irq.h"
#include "n8_manage_memory.h"
#include "n8_pk_common.h"
#include "n8_rn_common.h"
#include "n8_ea_common.h"
#include "n8_sksInit.h"
#include "QMgrInit.h"
#include "config.h"
#include "nsp2000_regs.h"
#include "n8_version.h"
#include "n8_memory.h"
#include "userPool.h"
#include "n8_driver_api.h"
#if 0
#include "n8_OS_intf.h"
#include "helper.h"
#include "n8_driver_main.h"
#include "n8_driver_parms.h"
#include "irq.h"
#include "displayRegs.h"
#include "n8_memory.h"
#include "nsp_ioctl.h"
#include "n8_daemon_common.h"
#include "n8_sksInit.h"
#include "contextMem.h"
#include "n8_version.h"
#include "n8_pk_common.h"
#include "n8_rn_common.h"
#include "config.h"
#include "n8_driver_api.h"
#include "userPool.h"
#include "QMgrInit.h"
#include "n8_semaphore.h"
#endif
extern int NSPcount_g;
extern NspInstance_t NSPDeviceTable_g [];
int driverMode = 0;
unsigned long bncAddr = 0;
n8_WaitQueue_t requestBlock;
n8_WaitQueue_t nsp2000_wait;
/*****************************************************************************
* n8_chipInit
*****************************************************************************/
/** @ingroup NSP2000Driver
* @brief Allocates and initializes resources used by each nsp2000 core.
*
* This function allocates and initializes resources used by each nsp2000 core.
* It should be called once per chip detected as the driver is initialized.
*
*
* @param NSPinstance_p RO: Pointer to the information structure for an
* NSP2000 hardware instance, containing a
* pointer to its control register set.
* @param HWidx RO: Specifies the chip index.
* @param queueSize RO: The size of the command queue to allocate
* for the EA & PK cores.
* @param Debug RO: The value of the N8_Debug_g flag.
*
* @return
* N/A
*
* @par Errors:
* See return section for error information.
*****************************************************************************/
int n8_chipInit( NspInstance_t *NSPinstance_p,
int HWidx,
int queueSize,
unsigned char Debug)
{
volatile NSP2000REGS_t *nsp = (NSP2000REGS_t *)NSPinstance_p->NSPregs_p;
int queueLength; /* Number of entries */
/* First store model identifiers */
DBG(("store model id\n"));
NSPinstance_p->hardwareType = N8_NSP2000_HW;
NSPinstance_p->HardwareVersion = NSPinstance_p->PCIinfo.device_id;
NSPinstance_p->RevisionID = NSPinstance_p->PCIinfo.revision_id;
/* Initialize bus error statistics */
DBG(("bus error stats\n"));
NSPinstance_p->RNHbuserrors = 0;
NSPinstance_p->PKHbuserrors = 0;
NSPinstance_p->CCHbuserrors = 0;
/* Set the amba PCI endian mode register */
nsp->amba_pci_endian_mode = 0;
queueLength = 1 << queueSize;
/* Initialize sizes for allocated resources */
NSPinstance_p->RNqueue_size = 0;
NSPinstance_p->PKqueue_size = 0;
NSPinstance_p->EAqueue_size = 0;
/* Initialize physical base address of each queue and struct */
NSPinstance_p->RNqueue_base = 0;
NSPinstance_p->PKqueue_base = 0;
NSPinstance_p->EAqueue_base = 0;
NSPinstance_p->chip = HWidx;
/* Allocate static resources */
if (bncAddr == 0)
{
bncAddr = n8_pmalloc(N8_MEMBANK_QUEUE, PKDIGITS_TO_BYTES(2), 0);
DBG(("n8_pmalloc(N8_MEMBANK_QUEUE) -> 0x%x\n",
(uint32_t)bncAddr));
if (bncAddr)
{
char *bnc_one_p;
bnc_one_p = N8_PhysToVirt(bncAddr);
DBG(("bncAddr 0x%x -> virt 0x%x\n",
(uint32_t)bncAddr,
(uint32_t)bnc_one_p));
memset(bnc_one_p, 0x0, PKDIGITS_TO_BYTES(2));
bnc_one_p[PK_Bytes_Per_BigNum_Digit - 1] = 1;
}
else
{
DBG(( "NSP2000: Failed BNC constant allocation.\n"));
return 0;
}
}
NSPinstance_p->RNqueue_base = n8_pmalloc(N8_MEMBANK_QUEUE,
N8_DEF_RNG_QUE_SIZE*sizeof(RNG_Sample_t),
0);
if (!NSPinstance_p->RNqueue_base)
{
N8_PRINT(KERN_CRIT "NSP2000: Failed RN queue allocation.\n");
return 0;
}
NSPinstance_p->PKqueue_base = n8_pmalloc(N8_MEMBANK_QUEUE,
queueLength*sizeof(PK_CMD_BLOCK_t),
0);
if (!NSPinstance_p->PKqueue_base)
{
N8_PRINT(KERN_CRIT "NSP2000: Failed PK queue allocation.\n");
return 0;
}
NSPinstance_p->EAqueue_base = n8_pmalloc(N8_MEMBANK_QUEUE,
queueLength*sizeof(EA_CMD_BLOCK_t),
0);
if (!NSPinstance_p->EAqueue_base)
{
N8_PRINT(KERN_CRIT "NSP2000: Failed EA queue allocation.\n");
return 0;
}
/* Update sizes of allocated resources */
NSPinstance_p->RNqueue_size = N8_DEF_RNG_QUE_SIZE;
NSPinstance_p->PKqueue_size = queueLength;
NSPinstance_p->EAqueue_size = queueLength;
/* Convert physical base address of each struct to a kernel virtual address*/
NSPinstance_p->RNqueue_p = N8_PhysToVirt(NSPinstance_p->RNqueue_base);
NSPinstance_p->PKqueue_p = N8_PhysToVirt(NSPinstance_p->PKqueue_base);
NSPinstance_p->EAqueue_p = N8_PhysToVirt(NSPinstance_p->EAqueue_base);
/* EAshared_p and PKshared_p are owned by QMgr and are thus set by QMgr */
/* Set the queue pointers */
nsp->pkh_q_bar1 = 0;
nsp->cch_q_bar1 = 0;
nsp->rnh_q_bar1 = 0;
nsp->pkh_q_bar0 = NSPinstance_p->PKqueue_base;
nsp->cch_q_bar0 = NSPinstance_p->EAqueue_base;
nsp->rnh_q_bar0 = NSPinstance_p->RNqueue_base;
nsp->pkh_q_length = queueSize;
nsp->cch_q_length = queueSize;
nsp->rnh_q_length = N8_DEF_RNG_QUE_EXP;
/* Initialize the SKS data structures. */
if (!SKS_Init(NSPinstance_p))
{
N8_PRINT(KERN_CRIT "NSP2000: Failed to Initialize SKS.\n");
}
/* Enable the EA & PK Queues since they need no parameters to start. */
nsp->pkh_control_status |= NSP_CORE_ENABLE;
nsp->cch_control_status |= NSP_CORE_ENABLE;
if (Debug)
{
/* Announce allocations */
N8_PRINT(KERN_CRIT "NSP2000: Allocated RN queue - %ld entries @ %08lx.\n",
NSPinstance_p->RNqueue_size, NSPinstance_p->RNqueue_base);
N8_PRINT(KERN_CRIT "NSP2000: Allocated PK queue - %ld entries @ %08lx.\n",
NSPinstance_p->PKqueue_size, NSPinstance_p->PKqueue_base);
N8_PRINT(KERN_CRIT "NSP2000: Allocated EA queue - %ld entries @ %08lx.\n",
NSPinstance_p->EAqueue_size, NSPinstance_p->EAqueue_base);
}
/* Allocate resources to manage the context memory */
N8_ContextMemInit(HWidx);
/* Initialize QMgr. */
QMgrInit(HWidx);
/* Initialize wait queue for each core */
N8_InitWaitQueue(&NSPinstance_p->RNHblock);
N8_InitWaitQueue(&NSPinstance_p->CCHblock);
N8_InitWaitQueue(&NSPinstance_p->PKHblock);
N8_InitWaitQueue(&NSPinstance_p->AMBAblock);
return 1;
}
/*****************************************************************************
* n8_chipRemove
*****************************************************************************/
/** @ingroup NSP2000Driver
* @brief Deallocates resources for each chip.
*
* This funciton deallocates the resources used by each chip. Upon driver exit
* this function should be called once for each chip initialized.
*
* @param NSPinstance_p RO: Pointer to the information structure for an
* NSP2000 hardware instance, containing a
* pointer to its control register set.
* @param HWidx RO: Specifies the chip index.
*
* @return
* N/A
*
* @par Errors:
* See return section for error information.
*****************************************************************************/
N8_Status_t n8_chipRemove(NspInstance_t *NSPinstance_p, int HWidx)
{
volatile NSP2000REGS_t *nsp = (NSP2000REGS_t *)NSPinstance_p->NSPregs_p;
/* Disable each of the Cores */
nsp->pkh_control_status = 0;
nsp->cch_control_status = 0;
nsp->rnh_control_status = 0;
/* Reset the queue pointers */
nsp->pkh_q_bar0 = 0;
nsp->cch_q_bar0 = 0;
nsp->rnh_q_bar0 = 0;
/* Deallocate the resources used by the context memory management */
N8_ContextMemRemove(HWidx);
/* Remove the SKS data structures. */
SKS_Remove(NSPinstance_p);
/* Free static resources */
if (bncAddr)
{
n8_pfree(N8_MEMBANK_QUEUE, (void *)bncAddr);
bncAddr = 0;
}
n8_pfree(N8_MEMBANK_QUEUE, (void *)NSPinstance_p->RNqueue_base);
n8_pfree(N8_MEMBANK_QUEUE, (void *)NSPinstance_p->PKqueue_base);
n8_pfree(N8_MEMBANK_QUEUE, (void *)NSPinstance_p->EAqueue_base);
/* Reset sizes for allocated resources */
NSPinstance_p->RNqueue_size = 0;
NSPinstance_p->PKqueue_size = 0;
NSPinstance_p->EAqueue_size = 0;
/* Reset physical base address of each queue and struct */
NSPinstance_p->RNqueue_base = 0;
NSPinstance_p->PKqueue_base = 0;
NSPinstance_p->EAqueue_base = 0;
/* Disable the timer and its interrupt */
nsp->amba_pci_timer_preset = 0;
nsp->amba_pci_control = 0;
QMgrRemove(HWidx);
/* Deallocate wait queue for each core */
N8_DelWaitQueue(NSPinstance_p->RNHblock);
N8_DelWaitQueue(NSPinstance_p->CCHblock);
N8_DelWaitQueue(NSPinstance_p->PKHblock);
N8_DelWaitQueue(NSPinstance_p->AMBAblock);
return(N8_STATUS_OK);
}
/*****************************************************************************
* N8_GetConfig
*****************************************************************************/
/** @ingroup NSP2000Driver
* @brief Configuration manager.
*
* This routine retrieves information about the device(s) installed and running
* under this driver and writes it to the location requested by the caller.
*
* @param *driverInfo_p RO: Address where the caller has requested the data
* to be written.
*
* @par Externals:
*
* @return
*
* @par Errors:
* See return section for error information.
*****************************************************************************/
void N8_GetConfig(NSPdriverInfo_t *driverInfo_p)
{
int ctr;
/* Make sure the pointer is not NULL */
if (driverInfo_p)
{
/* Collect information about this driver installation. */
driverInfo_p->numChips = NSPcount_g;
driverInfo_p->driverVersion = N8_VERSION;
/* Collect information about each memory region. */
driverInfo_p->eaMemoryBase = memBankCtl_gp[N8_MEMBANK_EA]->memBaseAddress;
driverInfo_p->eaMemorySize = memBankCtl_gp[N8_MEMBANK_EA]->allocSize;
driverInfo_p->pkMemoryBase = memBankCtl_gp[N8_MEMBANK_PK]->memBaseAddress;
driverInfo_p->pkMemorySize = memBankCtl_gp[N8_MEMBANK_PK]->allocSize;
driverInfo_p->bncAddress = bncAddr;
driverInfo_p->sessionID = N8_GET_SESSION_ID;
driverInfo_p->userPools = userPoolCount();
/* Collect information about each chip. */
for (ctr = 0; ctr < NSPcount_g; ctr++)
{
driverInfo_p->chipInfo[ctr].contextMemsize = NSPDeviceTable_g[ctr].contextMemSize;
driverInfo_p->chipInfo[ctr].SKS_size = NSPDeviceTable_g[ctr].SKS_size;
driverInfo_p->chipInfo[ctr].HardwareVersion = NSPDeviceTable_g[ctr].HardwareVersion;
driverInfo_p->chipInfo[ctr].hardwareType = NSPDeviceTable_g[ctr].hardwareType;
driverInfo_p->chipInfo[ctr].RevisionID = NSPDeviceTable_g[ctr].RevisionID;
driverInfo_p->chipInfo[ctr].RNqueueSize = NSPDeviceTable_g[ctr].RNqueue_size;
driverInfo_p->chipInfo[ctr].PKqueueSize = NSPDeviceTable_g[ctr].PKqueue_size;
driverInfo_p->chipInfo[ctr].EAqueueSize = NSPDeviceTable_g[ctr].EAqueue_size;
}
driverInfo_p->mode = driverMode;
}
return;
}
/*****************************************************************************
* N8_OpenDevice
*****************************************************************************/
/** @ingroup NSP2000Driver
* @brief Configuration manager.
*
* This routine mirrors the user level function that is required to open the
* NSP2000 device and mmap its resources.
*
* @param *driverInfo_p RO: Address where the caller has requested the data
* to be written.
*
* @par Externals:
*
* @return
*
* @par Errors:
* See return section for error information.
*****************************************************************************/
N8_Status_t N8_OpenDevice(NSPdriverInfo_t *driverInfo_p,
N8_Boolean_t allocUserPool,
N8_Open_t openMode)
{
N8_GetConfig(driverInfo_p);
return (N8_STATUS_OK);
}
/*****************************************************************************
* N8_CloseDevice
*****************************************************************************/
/** @ingroup NSP2000Driver
* @brief Configuration manager.
*
* This routine mirrors the user level function that is required to close the
* NSP2000 device and deallocates its resources.
*
* @return
*
* @par Errors:
* See return section for error information.
*****************************************************************************/
void N8_CloseDevice(void)
{
return;
}
/*****************************************************************************
* n8_enableInterrupts
*****************************************************************************/
/** @ingroup NSP2000Driver
* @brief Configuration of interrupts
*
* Configures and enables interrupts all detected NSP2000's. Must be called
* after * the driver has registered its interrupt handler with the OS.
*
* @param
*
* @return
*
* @par Errors:
* See return section for error information.
*****************************************************************************/
void n8_enableInterrupts(int timer_preset)
{
int counter;
NspInstance_t *NSPinstance_p;
unsigned long amba_pci_control;
volatile NSP2000REGS_t *nsp;
for (counter = 0; counter < NSPcount_g; counter++)
{
NSPinstance_p = &NSPDeviceTable_g[counter];
nsp = (NSP2000REGS_t *)NSPinstance_p->NSPregs_p;
/* Set up for error interrupts */
amba_pci_control = AMBAIRQ_PKP | AMBAIRQ_CCH | AMBAIRQ_RNG;
/* Configure the timer interrupt on the first NSP2000. */
if (counter == N8_AMBA_TIMER_CHIP)
{
/* Set up the timer preset */
nsp->amba_pci_timer_preset = timer_preset;
}
/* Enable interrupt on error and PK command complete */
nsp->pkh_intr_enable = PK_Status_Halting_Error_Mask |
PK_Enable_Cmd_Complete_Enable;
nsp->cch_intr_enable = EA_Status_Halting_Error_Mask;
nsp->amba_pci_control = amba_pci_control;
}
}
/*****************************************************************************
* n8_disableInterrupts
*****************************************************************************/
/** @ingroup NSP2000Driver
* @brief Configuration of interrupts
*
* Disables interrupts on the hardware. Must be called before deallocating
* the resources referenced by the IRQ.
*
* @return
*
* @par Errors:
* See return section for error information.
*****************************************************************************/
void n8_disableInterrupts(void)
{
unsigned long amba_pci_control;
volatile NSP2000REGS_t *nsp;
int ctr;
/* Set up for error interrupts */
amba_pci_control = 0;
for (ctr = 0; ctr < NSPcount_g; ctr++)
{
/* Disable all interrupts for each device */
nsp = (NSP2000REGS_t *)NSPDeviceTable_g[ctr].NSPregs_p;
nsp->amba_pci_control = amba_pci_control;
}
}
#if 0
/*****************************************************************************
* N8_GetFD
*****************************************************************************/
/** @ingroup NSP2000Driver
* @brief Return NULL file descriptor.
*
* Returns a NULL file descriptor for the kernel API.
*
* @return
*
* @par Errors:
* See return section for error information.
*****************************************************************************/
int N8_GetFD(void)
{
return(0);
}
#endif
/*****************************************************************************
* n8_driverInit
*****************************************************************************/
/** @ingroup NSP2000Driver
* @brief Allocation and initialization of drivers resources.
*
* This function should be called once at driver installation. It is
* responsible for the allocation and initialization of global structures
* used by the NSP2000 device driver.
*
* @param eaPoolSize R0: Size (in KB) of the EA memory pool.
* pkPoolSize R0: Size (in KB) of the PK memory pool.
*
* @par Externals:
*
* @return
* 0 - Success
*
* @par Errors:
* See return section for error information.
*
* NOTE: All resources allocated here should be removed in n8_driverRemove.
*****************************************************************************/
int n8_driverInit(int eaPoolSize, int pkPoolSize)
{
/* Allocate physically contiguous blocks of memory that are locked down */
/* This pool of memory will be accessed by the NSP2000's DMA engine. */
/* The first allocation is for the command queues */
if (!n8_memoryInit(N8_MEMBANK_QUEUE,
N8_QUEUE_POOL_SIZE * N8_ONE_KILOBYTE * NSPcount_g,
N8_QUEUE_GRANULARITY))
{
return -ENOMEM;
}
/* The second allocation is for the EA requests */
if (!n8_memoryInit(N8_MEMBANK_EA,
eaPoolSize * N8_ONE_KILOBYTE,
N8_EA_GRANULARITY))
{
n8_memoryRelease(N8_MEMBANK_QUEUE);
return -ENOMEM;
}
/* The third allocation is for the PK requests */
if (!n8_memoryInit(N8_MEMBANK_PK,
pkPoolSize * N8_ONE_KILOBYTE,
N8_PK_GRANULARITY))
{
n8_memoryRelease(N8_MEMBANK_EA);
n8_memoryRelease(N8_MEMBANK_QUEUE);
return -ENOMEM;
}
/* Create the user pool */
userPoolInit( DEF_USER_POOL_BANKS,
DEF_USER_POOL_SIZE,
DEF_USER_GRANULARITY);
#if 0
/* Initialize the process init semaphore */
n8_create_process_init_sem();
#endif
/* Initialize driver wait queues */
N8_InitWaitQueue(&nsp2000_wait);
N8_InitWaitQueue(&requestBlock);
return 0;
}
/*****************************************************************************
* n8_driverRemove
*****************************************************************************/
/** @ingroup NSP2000Driver
* @brief Deallocation and removal of drivers resources.
*
* This function should be called once at driver removal. It is
* responsible for the deallocation and removal of global structures
* used by the NSP2000 device driver.
*
* @param
*
* @par Externals:
*
* @return
* 0 - Success
*
* @par Errors:
* See return section for error information.
*****************************************************************************/
int n8_driverRemove(void)
{
#if 0
/* Delete the process init semaphore */
n8_delete_process_init_sem();
#endif
/* Remove the user pool */
userPoolRelease();
/* Remove the driver memory pools */
DBG(("n8_driverRemove: n8_memoryRelease(PK=%d)\n", N8_MEMBANK_PK));
n8_memoryRelease(N8_MEMBANK_PK);
DBG(("n8_driverRemove: n8_memoryRelease(EA=%d)\n", N8_MEMBANK_EA));
n8_memoryRelease(N8_MEMBANK_EA);
DBG(("n8_driverRemove: n8_memoryRelease(QUEUE=%d)\n", N8_MEMBANK_QUEUE));
n8_memoryRelease(N8_MEMBANK_QUEUE);
/* Deallocate driver wait queues */
N8_DelWaitQueue(nsp2000_wait);
N8_DelWaitQueue(requestBlock);
return 0;
}
Reference in New Issue View Git Blame Copy Permalink