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Commit 5fc4dfc3 authored by Adam Wujek's avatar Adam Wujek 💬
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arch/lm32: add a pointer to hdl_testbench structure in crt0.S 

Signed-off-by: Adam Wujek's avatarAdam Wujek <adam.wujek@cern.ch>
parent 3ea94d74
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Showing with 52 additions and 12 deletions
arch/lm32/crt0.S
View file @ 5fc4dfc3
...@@ -78,6 +78,7 @@ ...@@ -78,6 +78,7 @@
#include "include/revision.h" #include "include/revision.h"
#include "ppsi/proto-ext-whiterabbit/wr-api.h" #include "ppsi/proto-ext-whiterabbit/wr-api.h"
#include "arch/lm32/crt0.h" #include "arch/lm32/crt0.h"
#include "include/generated/autoconf.h"
/* From include/sys/signal.h */ /* From include/sys/signal.h */
#define SIGINT 2 /* interrupt */ #define SIGINT 2 /* interrupt */
#define SIGTRAP 5 /* trace trap */ #define SIGTRAP 5 /* trace trap */
...@@ -135,6 +136,16 @@ version_wrpc: ...@@ -135,6 +136,16 @@ version_wrpc:
version_ppsi: version_ppsi:
.byte WRS_PPSI_SHMEM_VERSION .byte WRS_PPSI_SHMEM_VERSION
/* Pointer to a structure used by testbenches, use only when
* CONFIG_WR_NODE_SIM is set */
.org HDL_TESTBENCH_PADDR
.global hdl_testbench_p
hdl_testbench_p:
#ifdef CONFIG_WR_NODE_SIM
.word hdl_testbench
#else
.word 0
#endif
.extern _irq_entry .extern _irq_entry
.org 0xc0 .org 0xc0
.global _interrupt_handler .global _interrupt_handler
......
arch/lm32/crt0.h
View file @ 5fc4dfc3
...@@ -18,5 +18,6 @@ ...@@ -18,5 +18,6 @@
#define UPTIME_SEC_ADDR 0xa0 #define UPTIME_SEC_ADDR 0xa0
#define VERSION_WRPC_ADDR 0xa4 #define VERSION_WRPC_ADDR 0xa4
#define VERSION_PPSI_ADDR 0xa5 #define VERSION_PPSI_ADDR 0xa5
#define HDL_TESTBENCH_PADDR 0xbc
#endif /* __CRT0_H__ */ #endif /* __CRT0_H__ */
wrc_main_sim.c
View file @ 5fc4dfc3
...@@ -4,6 +4,7 @@ ...@@ -4,6 +4,7 @@
* Copyright (C) 2017 CERN (www.cern.ch) * Copyright (C) 2017 CERN (www.cern.ch)
* Author: Grzegorz Daniluk <grzegorz.daniluk@cern.ch> * Author: Grzegorz Daniluk <grzegorz.daniluk@cern.ch>
* Author: Maciej Lipinski <maciej.lipinski@cern.ch> * Author: Maciej Lipinski <maciej.lipinski@cern.ch>
* Author: Adam Wujek <adam.wujek@cern.ch>
* *
* Released according to the GNU GPL, version 2 or any later version. * Released according to the GNU GPL, version 2 or any later version.
* *
...@@ -32,23 +33,40 @@ ...@@ -32,23 +33,40 @@
#include "softpll_ng.h" #include "softpll_ng.h"
#include <wrpc.h> /*needed for htons()*/ #include <wrpc.h> /*needed for htons()*/
int wrpc_test_1(void); #define TESTBENCH_MAGIC 0x4d433ebc
#define TESTBENCH_VERSION 1
#define TESTBENCH_RET_OK 1
#define TESTBENCH_RET_ERROR 2
/* /*
* This is a variable that is meant to be set by testbench through * This is a structure to pass information from the testbench to lm32's
* software. hdl_testbench structure is meant to be set by testbench through
* memory-manipulation. * memory-manipulation.
* *
* To allow this, there are still some elements missing: * At the address HDL_TESTBENCH_PADDR is a pointer to hdl_testbench structure.
* - the test_number variable needs to be at a known address, this is already * hdl_testbench_t structure can be expanded to carry information with any
* done for other variables (for VLANs?), so the same needs to be done for * size.
* this
* - testbench needs to be modified appropriately
* *
* The idea behind is that different tests for different testbenches are * The idea behind is that different tests for different testbenches are
* compiled in this file, and the proper test is loaded based on this variable. * compiled in this file, and the proper test is loaded based on variable
* Each testbench sets the proper testbench number at th startup * hdl_testbench.test_num.
* Each HDL testbench sets the proper testbench number at the startup.
*/ */
static int test_number;
struct hdl_testbench_t {
uint32_t magic;
uint32_t version;
uint32_t test_num;
uint32_t return_val;
};
struct hdl_testbench_t hdl_testbench = {
.magic = TESTBENCH_MAGIC,
.version = TESTBENCH_VERSION,
.test_num = 0,
};
int wrpc_test_1(void);
/* /*
* Basic initialization required for simulation * Basic initialization required for simulation
...@@ -123,6 +141,7 @@ int wrpc_test_1(void) ...@@ -123,6 +141,7 @@ int wrpc_test_1(void)
memcpy(tx_hdr.dstmac, "\x01\x1B\x19\x00\x00\x00", 6); memcpy(tx_hdr.dstmac, "\x01\x1B\x19\x00\x00\x00", 6);
tx_hdr.ethtype = htons(0x88f7); tx_hdr.ethtype = htons(0x88f7);
hdl_testbench.return_val = TESTBENCH_RET_OK;
/** main loop, send test frames */ /** main loop, send test frames */
for (;;) { for (;;) {
/* seqID */ /* seqID */
...@@ -165,11 +184,20 @@ void main(void) ...@@ -165,11 +184,20 @@ void main(void)
{ {
wrc_sim_initialize(); wrc_sim_initialize();
switch (test_number) { if (hdl_testbench.magic != TESTBENCH_MAGIC
case 0: || hdl_testbench.magic != TESTBENCH_VERSION) {
/* Wrong testbench structure */
hdl_testbench.return_val = TESTBENCH_RET_ERROR;
while (1)
;
}
switch (hdl_testbench.test_num) {
case 1:
wrpc_test_1(); wrpc_test_1();
break; break;
default: default:
/* Wrong test number */
hdl_testbench.return_val = TESTBENCH_RET_ERROR;
while (1) while (1)
; ;
} }
......
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