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#include <stdint.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <dirent.h>
#include <sys/mman.h>
#include <endian.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include <errno.h>
#include <NVRam.h>
#include "pci_config.h"
#include "HAL.hpp"
#define DEVICE_ROOT "/sys/bus/pci/devices/"
#define DEVICE_CONFIG "config"
#define BAR_STR "resource%d"
#define ARRAY_ELEMENTS(__x__) (sizeof(__x__)/sizeof(__x__[0]))
#define ERROR_NO_PCI_DEVS (1)
bool is_primary_function(const char* pci_path)
{
// Path: 0001:01:00.0
int sys = 0;
int bus = 0;
int slot = 0;
int function = 0;
if(4 == sscanf(pci_path, "%d:%d:%d.%d\n", &sys, &bus, &slot, &function))
{
if(0 == function)
{
return true;
}
}
return false;
}
int main(int argc, char const *argv[])
{
struct dirent *pDirent;
DIR *pDir;
pDir = opendir(DEVICE_ROOT);
if(pDir == NULL)
{
printf ("Cannot open directory '%s'\n", DEVICE_ROOT);
return ERROR_NO_PCI_DEVS;
}
while ((pDirent = readdir(pDir)) != NULL)
{
const char* pPCIPath = pDirent->d_name;
if(is_primary_function(pDirent->d_name))
{
// This is the primary function of a device.
// Read the configuration and see if it matches a supported vendor/device.
char* pConfigPath = (char*)malloc(strlen(DEVICE_ROOT "%s/" DEVICE_CONFIG) + strlen(pPCIPath) + 1);
sprintf(pConfigPath, DEVICE_ROOT "%s/" DEVICE_CONFIG, pPCIPath);
FILE* pConfigFile = fopen(pConfigPath, "rb");
if(pConfigFile)
{
pci_config_t config;
if(fread(&config, sizeof(config), 1, pConfigFile))
{
if(is_supported(config.vendor_id, config.device_id))
{
char* pFullPCIPath = (char*)malloc(strlen(DEVICE_ROOT "%s/") + strlen(pPCIPath) + 1);
sprintf(pFullPCIPath, DEVICE_ROOT "%s/", pPCIPath);
initHAL(pFullPCIPath);
free(pFullPCIPath);
free(pConfigPath);
break;
}
}
}
free(pConfigPath);
}
}
closedir (pDir);
printf("ChipId: %x\n", (uint32_t)DEVICE.ChipId.r32);
printf("APEChipId: %x\n", (uint32_t)APE.ChipId.r32);
// printf("RxRiscMode: %0x\n", DEVICE.RxRiscMode.r32);
// printf("RxRiscStatus: %0x\n", DEVICE.RxRiscStatus.r32);
// printf("RxRiscProgramCounter: %0x\n", DEVICE.RxRiscProgramCounter.r32);
// printf("RxRiscRegister0: %0x\n", DEVICE.RxRiscRegister0.r32);
// printf("RxRiscRegister1: %0x\n", DEVICE.RxRiscRegister1.r32);
// printf("RxRiscRegister2: %0x\n", DEVICE.RxRiscRegister2.r32);
// printf("RxRiscRegister3: %0x\n", DEVICE.RxRiscRegister3.r32);
DEVICE.LinkStatusControl.r32 = 0xffffffff;
printf("LinkStatusControl.NegotiatedLinkSpeed: %0x\n", (uint32_t)DEVICE.LinkStatusControl.bits.NegotiatedLinkSpeed);
printf("LinkStatusControl.NegotiatedLinkWidth: %0x\n", (uint32_t)DEVICE.LinkStatusControl.bits.NegotiatedLinkWidth);
printf("LinkStatusControl.r32: %0x\n", (uint32_t)DEVICE.LinkStatusControl.r32);
DEVICE.LinkStatusControl.bits.NegotiatedLinkSpeed = 0;
printf("LinkStatusControl.NegotiatedLinkSpeed: %0x\n", (uint32_t)DEVICE.LinkStatusControl.bits.NegotiatedLinkSpeed);
printf("LinkStatusControl.NegotiatedLinkWidth: %0x\n", (uint32_t)DEVICE.LinkStatusControl.bits.NegotiatedLinkWidth);
printf("LinkStatusControl.r32: %0x\n", (uint32_t)DEVICE.LinkStatusControl.r32);
printf("EmacMode.PortMode: %0x\n", (uint32_t)DEVICE.EmacMode.bits.PortMode);
printf("EmacMacAddresses0High: %0x\n", (uint32_t)DEVICE.EmacMacAddresses0High.r32);
printf("EmacMacAddresses0Low: %0x\n", (uint32_t)DEVICE.EmacMacAddresses0Low.r32);
printf("RxRiscMode: %0x\n", (uint32_t)DEVICE.RxRiscMode.r32);
// printf("HostDriverId: %0x\n", APE.HostDriverId.r32);
// printf("RcpuPciSubsystemId: %0x\n", APE.RcpuPciSubsystemId.r32);
// printf("\n\n=========\n\n");
printf("Grab lock...\n");
NVRam_acquireLock();
NVRam_enable();
uint32_t length = NVRam_readWord(8); // current stage length
uint32_t offset = NVRam_readWord(0xc); // current stage offset
printf("NVRam_read(8) = %x\n", length);
printf("NVRam_read(C) = %x\n", offset);
// uint32_t next_stage_hdr = offset + (length*4);
// uint32_t next_stage_size = next_stage_hdr + 4;
// printf("NVRam_read(%x) = %x\n", next_stage_hdr, NVRam_readWord(next_stage_hdr));
// printf("NVRam_read(%x) = %x\n", next_stage_size, NVRam_readWord(next_stage_size));
NVRam_releaseLock();
return 0;
}
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