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/* Setup/glue to attach VME DMA driver to the beatnik BSP */
/*
* Authorship
* ----------
* This software ('beatnik' RTEMS BSP for MVME6100 and MVME5500) was
* created by Till Straumann <strauman@slac.stanford.edu>, 2005-2007,
* Stanford Linear Accelerator Center, Stanford University.
*
* Acknowledgement of sponsorship
* ------------------------------
* The 'beatnik' BSP was produced by
* the Stanford Linear Accelerator Center, Stanford University,
* under Contract DE-AC03-76SFO0515 with the Department of Energy.
*
* Government disclaimer of liability
* ----------------------------------
* Neither the United States nor the United States Department of Energy,
* nor any of their employees, makes any warranty, express or implied, or
* assumes any legal liability or responsibility for the accuracy,
* completeness, or usefulness of any data, apparatus, product, or process
* disclosed, or represents that its use would not infringe privately owned
* rights.
*
* Stanford disclaimer of liability
* --------------------------------
* Stanford University makes no representations or warranties, express or
* implied, nor assumes any liability for the use of this software.
*
* Stanford disclaimer of copyright
* --------------------------------
* Stanford University, owner of the copyright, hereby disclaims its
* copyright and all other rights in this software. Hence, anyone may
* freely use it for any purpose without restriction.
*
* Maintenance of notices
* ----------------------
* In the interest of clarity regarding the origin and status of this
* SLAC software, this and all the preceding Stanford University notices
* are to remain affixed to any copy or derivative of this software made
* or distributed by the recipient and are to be affixed to any copy of
* software made or distributed by the recipient that contains a copy or
* derivative of this software.
*
* ------------------ SLAC Software Notices, Set 4 OTT.002a, 2004 FEB 03
*/
#include <stdio.h>
#include <stdint.h>
#include <rtems.h>
#include <bsp.h>
#include <bsp/VME.h>
#include <bsp/vmeTsi148.h>
#include <bsp/vmeUniverse.h>
#include <bsp/VMEDMA.h>
#include <bsp/vmeTsi148DMA.h>
#include <bsp/vmeUniverseDMA.h>
#include <bsp/bspVmeDmaList.h>
typedef struct DmaOpsRec_ {
int (*setup)(int, uint32_t, uint32_t, void *);
int (*start)(int, uint32_t, uint32_t, uint32_t);
uint32_t (*status)(int);
VMEDmaListClass listClass;
} DmaOpsRec, *DmaOps;
static DmaOpsRec universeOps = {
vmeUniverseDmaSetup,
vmeUniverseDmaStart,
vmeUniverseDmaStatus,
&vmeUniverseDmaListClass,
};
static DmaOpsRec tsiOps = {
vmeTsi148DmaSetup,
vmeTsi148DmaStart,
vmeTsi148DmaStatus,
&vmeTsi148DmaListClass,
};
static int setup(int a, uint32_t b, uint32_t c, void *d);
static int start(int a, uint32_t b, uint32_t c, uint32_t d);
static uint32_t status(int a);
static DmaOpsRec jumpstartOps = {
setup,
start,
status,
0
};
static DmaOps dmaOps = &jumpstartOps;
static DmaOps selectOps()
{
return (MVME6100 != BSP_getBoardType()) ?
&universeOps : &tsiOps;
}
static int
setup(int a, uint32_t b, uint32_t c, void *d)
{
return (dmaOps=selectOps())->setup(a,b,c,d);
}
static int
start(int a, uint32_t b, uint32_t c, uint32_t d)
{
return (dmaOps=selectOps())->start(a,b,c,d);
}
static uint32_t
status(int a)
{
return (dmaOps=selectOps())->status(a);
}
int
BSP_VMEDmaSetup(int channel, uint32_t bus_mode, uint32_t xfer_mode, void *custom_setup)
{
return dmaOps->setup(channel, bus_mode, xfer_mode, custom_setup);
}
int
BSP_VMEDmaStart(int channel, uint32_t pci_addr, uint32_t vme_addr, uint32_t n_bytes)
{
return dmaOps->start(channel, pci_addr, vme_addr, n_bytes);
}
uint32_t
BSP_VMEDmaStatus(int channel)
{
return dmaOps->status(channel);
}
BSP_VMEDmaListDescriptor
BSP_VMEDmaListDescriptorSetup(
BSP_VMEDmaListDescriptor d,
uint32_t attr_mask,
uint32_t xfer_mode,
uint32_t pci_addr,
uint32_t vme_addr,
uint32_t n_bytes)
{
VMEDmaListClass pc;
if ( !d ) {
if ( ! (pc = dmaOps->listClass) ) {
pc = (dmaOps = selectOps())->listClass;
}
return BSP_VMEDmaListDescriptorNewTool(
pc,
attr_mask,
xfer_mode,
pci_addr,
vme_addr,
n_bytes);
}
return BSP_VMEDmaListDescriptorSetupTool(d, attr_mask, xfer_mode, pci_addr, vme_addr, n_bytes);
}
int
BSP_VMEDmaListStart(int channel, BSP_VMEDmaListDescriptor list)
{
return BSP_VMEDmaListDescriptorStartTool(0, channel, list);
}
/* NOT thread safe! */
int
BSP_VMEDmaInstallISR(int channel, BSP_VMEDmaIRQCallback cb, void *usr_arg)
{
int vec;
BSP_VME_ISR_t curr;
void *carg;
if ( MVME6100 != BSP_getBoardType() ) {
if ( channel != 0 )
return -1;
vec = UNIV_DMA_INT_VEC;
} else {
if ( channel < 0 || channel > 1 )
return -1;
vec = (channel ? TSI_DMA1_INT_VEC : TSI_DMA_INT_VEC );
}
curr = BSP_getVME_isr(vec, &carg);
if ( cb && curr ) {
/* IRQ currently in use */
return -1;
}
if ( !cb && !curr ) {
/* Allow uninstall if no handler is currently installed;
* just make sure IRQ is disabled
*/
BSP_disableVME_int_lvl(vec);
return 0;
}
if ( cb ) {
if ( BSP_installVME_isr(vec, (BSP_VME_ISR_t)cb, usr_arg) )
return -4;
BSP_enableVME_int_lvl(vec);
} else {
BSP_disableVME_int_lvl(vec);
if ( BSP_removeVME_isr(vec, curr, carg) )
return -4;
}
return 0;
}
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