diff options
Diffstat (limited to 'pci.c')
| -rw-r--r-- | pci.c | 514 |
1 files changed, 55 insertions, 459 deletions
@@ -1,20 +1,4 @@ -/******************************************************************* - * This is a test program for the IOctl interface of the - * pciDriver. - * - * $Revision: 1.3 $ - * $Date: 2006-11-17 18:49:01 $ - * - *******************************************************************/ - -/******************************************************************* - * Change History: - * - * $Log: not supported by cvs2svn $ - * Revision 1.2 2006/10/16 16:56:09 marcus - * Added nice comment at the start. - * - *******************************************************************/ +#define _PCILIB_PCI_C #include <stdio.h> #include <string.h> @@ -26,125 +10,43 @@ #include <sys/ioctl.h> #include <sys/mman.h> #include <errno.h> -#include <alloca.h> - -#include <getopt.h> - #include "driver/pciDriver.h" #include "kernel.h" #include "tools.h" -/* defines */ -#define MAX_KBUF 14 -//#define BIGBUFSIZE (512*1024*1024) -#define BIGBUFSIZE (1024*1024) - - -#define DEFAULT_FPGA_DEVICE "/dev/fpga0" -#define MAX_BANKS 6 - -#define LINE_WIDTH 80 -#define SEPARATOR_WIDTH 2 -#define BLOCK_SEPARATOR_WIDTH 2 -#define BLOCK_SIZE 8 -#define BENCHMARK_ITERATIONS 128 - -//#define FILE_IO - -typedef enum { - MODE_INVALID, - MODE_INFO, - MODE_LIST, - MODE_BENCHMARK, - MODE_READ, - MODE_WRITE -} MODE; - -typedef enum { - OPT_DEVICE = 'd', - OPT_BAR = 'b', - OPT_ACCESS = 'a', - OPT_SIZE = 's', - OPT_INFO = 'i', - OPT_BENCHMARK = 'p', - OPT_LIST = 'l', - OPT_READ = 'r', - OPT_WRITE = 'w', - OPT_HELP = 'h', -} OPTIONS; - -static struct option long_options[] = { - {"device", required_argument, 0, OPT_DEVICE }, - {"bar", required_argument, 0, OPT_BAR }, - {"access", required_argument, 0, OPT_ACCESS }, - {"size", required_argument, 0, OPT_SIZE }, - {"info", no_argument, 0, OPT_INFO }, - {"list", no_argument, 0, OPT_LIST }, - {"benchmark", no_argument, 0, OPT_BENCHMARK }, - {"read", optional_argument, 0, OPT_READ }, - {"write", optional_argument, 0, OPT_WRITE }, - {"help", no_argument, 0, OPT_HELP }, - { 0, 0, 0, 0 } -}; +#include "pci.h" +#include "ipecamera.h" +static pci_board_info board_info; +static page_mask = -1; -void Usage(int argc, char *argv[], const char *format, ...) { - if (format) { - va_list ap; - - va_start(ap, format); - printf("Error %i: ", errno); - vprintf(format, ap); - printf("\n"); - va_end(ap); + +static void pcilib_print_error(const char *msg, ...) { + va_list va; - printf("\n"); - } + va_start(va, msg); + vprintf(msg, va); + va_end(va); +} +static void (*Error)(const char *msg, ...) = pcilib_print_error; - printf( -"Usage:\n" -" %s <mode> [options] [hex data]\n" -" Modes:\n" -" -i - Device Info\n" -" -l - List Data Banks\n" -" -p - Performance Evaluation\n" -" -r <addr> - Read Data\n" -" -w <addr> - Write Data\n" -" --help - Help message\n" -"\n" -" Addressing:\n" -" -d <device> - FPGA device (/dev/fpga0)\n" -" -b <bank> - Data bank (autodetected)\n" -"\n" -" Options:\n" -" -s <size> - Number of words (default: 1)\n" -" -a <bitness> - Bits per word (default: 32)\n" -"\n\n", -argv[0]); - - exit(0); +int pcilib_open(const char *device) { + int handle = open(device, O_RDWR); + return handle; } -void Error(const char *format, ...) { - va_list ap; - - va_start(ap, format); - printf("Error %i: ", errno); - vprintf(format, ap); - if (errno) printf("\n errno: %s", strerror(errno)); - printf("\n\n"); - va_end(ap); - - exit(-1); +void pcilib_close(int handle) { + close(handle); } -static pci_board_info board_info; -static page_mask = -1; +int pcilib_set_error_handler(void (*err)(const char *msg, ...)) { + Error = err; +} -void GetBoardInfo(int handle) { +const pci_board_info *pcilib_get_board_info(int handle) { int ret; if (page_mask < 0) { @@ -153,58 +55,39 @@ void GetBoardInfo(int handle) { page_mask = get_page_mask(); } + + return &board_info; } -void List(int handle) { - int i; - GetBoardInfo(handle); - - for (i = 0; i < MAX_BANKS; i++) { - if (board_info.bar_length[i] > 0) { - printf(" BAR %d - ", i); - - switch ( board_info.bar_flags[i]&IORESOURCE_TYPE_BITS) { - case IORESOURCE_IO: printf(" IO"); break; - case IORESOURCE_MEM: printf("MEM"); break; - case IORESOURCE_IRQ: printf("IRQ"); break; - case IORESOURCE_DMA: printf("DMA"); break; - } - - if (board_info.bar_flags[i]&IORESOURCE_MEM_64) printf("64"); - else printf("32"); - - printf(", Start: 0x%08lx, Length: 0x% 8lx, Flags: 0x%08lx\n", board_info.bar_start[i], board_info.bar_length[i], board_info.bar_flags[i] ); - } - } -} +pcilib_model_t pcilib_detect_model(int handle) { + unsigned short vendor_id; + unsigned short device_id; -void Info(int handle) { - GetBoardInfo(handle); + pcilib_get_board_info(handle); - printf("Vendor: %x, Device: %x, Interrupt Pin: %i, Interrupt Line: %i\n", board_info.vendor_id, board_info.device_id, board_info.interrupt_pin, board_info.interrupt_line); - List(handle); + if ((board_info.vendor_id == PCIE_XILINX_VENDOR_ID)&&(board_info.device_id == PCIE_IPECAMERA_DEVICE_ID)) return PCILIB_MODEL_IPECAMERA; + return PCILIB_MODEL_PCI; } - -int DetectBar(int handle, unsigned long addr, int size) { +static int pcilib_detect_bar(int handle, unsigned long addr, int size) { int ret,i; - GetBoardInfo(handle); + pcilib_get_board_info(handle); - for (i = 0; i < MAX_BANKS; i++) { + for (i = 0; i < PCILIB_MAX_BANKS; i++) { if ((addr >= board_info.bar_start[i])&&((board_info.bar_start[i] + board_info.bar_length[i]) >= (addr + size))) return i; } return -1; } -void *DetectAddress(int handle, int *bar, unsigned long *addr, int size) { +static void *pcilib_detect_address(int handle, int *bar, unsigned long *addr, int size) { if (*bar < 0) { - *bar = DetectBar(handle, *addr, size); + *bar = pcilib_detect_bar(handle, *addr, size); if (*bar < 0) Error("The requested data block at address 0x%x with size 0x%x does not belongs to any available memory bank", *addr, size); } else { - GetBoardInfo(handle); + pcilib_get_board_info(handle); if ((*addr < board_info.bar_start[*bar])||((board_info.bar_start[*bar] + board_info.bar_length[*bar]) < (((uintptr_t)*addr) + size))) { if ((board_info.bar_length[*bar]) >= (((uintptr_t)*addr) + size)) @@ -223,11 +106,11 @@ void *DetectAddress(int handle, int *bar, unsigned long *addr, int size) { int file_io_handle; #endif /* FILE_IO */ -void *MapBar(int handle, int bar) { +void *pcilib_map_bar(int handle, int bar) { void *res; int ret; - GetBoardInfo(handle); + pcilib_get_board_info(handle); ret = ioctl( handle, PCIDRIVER_IOC_MMAP_MODE, PCIDRIVER_MMAP_PCI ); if (ret) Error("PCIDRIVER_IOC_MMAP_MODE ioctl have failed", bar); @@ -247,16 +130,14 @@ void *MapBar(int handle, int bar) { return res; } -void UnmapBar(int handle, int bar, void *data) { +void pcilib_unmap_bar(int handle, int bar, void *data) { munmap(data, board_info.bar_length[bar]); #ifdef FILE_IO close(file_io_handle); #endif } - - -int Read(void *buf, int handle, int bar, unsigned long addr, int size) { +int pcilib_read(void *buf, int handle, int bar, unsigned long addr, int size) { int i; void *data; unsigned int offset; @@ -264,8 +145,8 @@ int Read(void *buf, int handle, int bar, unsigned long addr, int size) { - DetectAddress(handle, &bar, &addr, size); - data = MapBar(handle, bar); + pcilib_detect_address(handle, &bar, &addr, size); + data = pcilib_map_bar(handle, bar); /* for (i = 0; i < size/4; i++) { @@ -273,322 +154,37 @@ int Read(void *buf, int handle, int bar, unsigned long addr, int size) { } */ - memcpy0(buf, data + addr, size); + pcilib_memcpy(buf, data + addr, size); - UnmapBar(handle, bar, data); + pcilib_unmap_bar(handle, bar, data); } -int Write(void *buf, int handle, int bar, unsigned long addr, int size) { +int pcilib_write(void *buf, int handle, int bar, unsigned long addr, int size) { int i; void *data; unsigned int offset; char local_buf[size]; - DetectAddress(handle, &bar, &addr, size); - data = MapBar(handle, bar); + pcilib_detect_address(handle, &bar, &addr, size); + data = pcilib_map_bar(handle, bar); - memcpy0(data + addr, buf, size); + pcilib_memcpy(data + addr, buf, size); - UnmapBar(handle, bar, data); + pcilib_unmap_bar(handle, bar, data); } -int Benchmark(int handle, int bar) { - int i, errors; - void *data, *buf, *check; - struct timeval start, end; - unsigned long time; - unsigned int size, max_size; - - GetBoardInfo(handle); - - if (bar < 0) { - for (i = 0; i < MAX_BANKS; i++) { - if (board_info.bar_length[i] > 0) { - bar = i; - break; - } - } - - if (bar < 0) Error("Data banks are not available"); - } - - - max_size = board_info.bar_length[bar]; - - posix_memalign( (void**)&buf, 256, max_size ); - posix_memalign( (void**)&check, 256, max_size ); - if ((!buf)||(!check)) Error("Allocation of %i bytes of memory have failed", max_size); - - printf("Transfer time:\n"); - data = MapBar(handle, bar); - - for (size = 4 ; size < max_size; size *= 8) { - gettimeofday(&start,NULL); - for (i = 0; i < BENCHMARK_ITERATIONS; i++) { - memcpy0(buf, data, size); - } - gettimeofday(&end,NULL); - - time = (end.tv_sec - start.tv_sec)*1000000 + (end.tv_usec - start.tv_usec); - printf("%8i bytes - read: %8.2lf MB/s", size, 1000000. * size * BENCHMARK_ITERATIONS / (time * 1024 * 1024)); - - fflush(0); - - gettimeofday(&start,NULL); - for (i = 0; i < BENCHMARK_ITERATIONS; i++) { - memcpy0(data, buf, size); - } - gettimeofday(&end,NULL); - - time = (end.tv_sec - start.tv_sec)*1000000 + (end.tv_usec - start.tv_usec); - printf(", write: %8.2lf MB/s\n", 1000000. * size * BENCHMARK_ITERATIONS / (time * 1024 * 1024)); - } - - UnmapBar(handle, bar, data); - - printf("\n\nOpen-Transfer-Close time: \n"); - - for (size = 4 ; size < max_size; size *= 8) { - gettimeofday(&start,NULL); - for (i = 0; i < BENCHMARK_ITERATIONS; i++) { - Read(buf, handle, bar, 0, size); - } - gettimeofday(&end,NULL); - - time = (end.tv_sec - start.tv_sec)*1000000 + (end.tv_usec - start.tv_usec); - printf("%8i bytes - read: %8.2lf MB/s", size, 1000000. * size * BENCHMARK_ITERATIONS / (time * 1024 * 1024)); - - fflush(0); - - gettimeofday(&start,NULL); - for (i = 0; i < BENCHMARK_ITERATIONS; i++) { - Write(buf, handle, bar, 0, size); - } - gettimeofday(&end,NULL); - - time = (end.tv_sec - start.tv_sec)*1000000 + (end.tv_usec - start.tv_usec); - printf(", write: %8.2lf MB/s", 1000000. * size * BENCHMARK_ITERATIONS / (time * 1024 * 1024)); - - gettimeofday(&start,NULL); - for (i = 0, errors = 0; i < BENCHMARK_ITERATIONS; i++) { - Write(buf, handle, bar, 0, size); - Read(check, handle, bar, 0, size); - if (memcmp(buf, check, size)) ++errors; - } - gettimeofday(&end,NULL); - - time = (end.tv_sec - start.tv_sec)*1000000 + (end.tv_usec - start.tv_usec); - printf(", write-verify: %8.2lf MB/s", 1000000. * size * BENCHMARK_ITERATIONS / (time * 1024 * 1024)); - if (errors) printf(", errors: %u of %u", errors, BENCHMARK_ITERATIONS); - printf("\n"); - } - - printf("\n\n"); - - free(check); - free(buf); -} - -int ReadData(int handle, int bar, unsigned long addr, int n, int access) { - void *buf; +int pcilib_find_register(pcilib_model_t model, const char *reg) { int i; - int size = n * abs(access); - int block_width, blocks_per_line; - int numbers_per_block, numbers_per_line; - - numbers_per_block = BLOCK_SIZE / access; - - block_width = numbers_per_block * ((access * 2) + SEPARATOR_WIDTH); - blocks_per_line = (LINE_WIDTH - 10) / (block_width + BLOCK_SEPARATOR_WIDTH); - if ((blocks_per_line > 1)&&(blocks_per_line % 2)) --blocks_per_line; - numbers_per_line = blocks_per_line * numbers_per_block; - -// buf = alloca(size); - posix_memalign( (void**)&buf, 256, size ); - - if (!buf) Error("Allocation of %i bytes of memory have failed", size); - - Read(buf, handle, bar, addr, size); - - for (i = 0; i < n; i++) { - if (i) { - if (i%numbers_per_line == 0) printf("\n"); - else { - printf("%*s", SEPARATOR_WIDTH, ""); - if (i%numbers_per_block == 0) printf("%*s", BLOCK_SEPARATOR_WIDTH, ""); - } - } - - if (i%numbers_per_line == 0) printf("%8lx: ", addr + i * abs(access)); - - switch (access) { - case 1: printf("%0*hhx", access * 2, ((uint8_t*)buf)[i]); break; - case 2: printf("%0*hx", access * 2, ((uint16_t*)buf)[i]); break; - case 4: printf("%0*x", access * 2, ((uint32_t*)buf)[i]); break; - case 8: printf("%0*lx", access * 2, ((uint64_t*)buf)[i]); break; - } - } - printf("\n\n"); - - - free(buf); -} - -int WriteData(int handle, int bar, unsigned long addr, int n, int access, char ** data) { - void *buf, *check; - int res, i; - int size = n * abs(access); - - posix_memalign( (void**)&buf, 256, size ); - posix_memalign( (void**)&check, 256, size ); - if ((!buf)||(!check)) Error("Allocation of %i bytes of memory have failed", size); - - for (i = 0; i < n; i++) { - switch (access) { - case 1: res = sscanf(data[i], "%hhx", ((uint8_t*)buf)+i); break; - case 2: res = sscanf(data[i], "%hx", ((uint16_t*)buf)+i); break; - case 4: res = sscanf(data[i], "%x", ((uint32_t*)buf)+i); break; - case 8: res = sscanf(data[i], "%lx", ((uint64_t*)buf)+i); break; - } - - if (res != 1) Error("Can't parse data value at poition %i, (%s) is not valid hex number", i, data[i]); - } - - Write(buf, handle, bar, addr, size); -// ReadData(handle, bar, addr, n, access); - Read(check, handle, bar, addr, size); - - if (memcmp(buf, check, size)) { - printf("Write failed: the data written and read differ, the foolowing is read back:\n"); - ReadData(handle, bar, addr, n, access); - exit(-1); - } - - free(check); - free(buf); -} - - -int main(int argc, char **argv) { - unsigned char c; - - MODE mode = MODE_INVALID; - const char *fpga_device = DEFAULT_FPGA_DEVICE; - int bar = -1; - const char *addr = NULL; - unsigned long start = -1; - int size = 1; - int access = 4; - int skip = 0; - - int handle; + pcilib_register_t *registers = pcilib_model_description[model].registers; - while ((c = getopt_long(argc, argv, "hilpr::w::d:b:a:s:", long_options, NULL)) != (unsigned char)-1) { - extern int optind; - switch (c) { - case OPT_HELP: - Usage(argc, argv, NULL); - break; - case OPT_INFO: - if (mode != MODE_INVALID) Usage(argc, argv, "Multiple operations are not supported"); - - mode = MODE_INFO; - break; - case OPT_LIST: - if (mode != MODE_INVALID) Usage(argc, argv, "Multiple operations are not supported"); - - mode = MODE_LIST; - break; - case OPT_BENCHMARK: - if (mode != MODE_INVALID) Usage(argc, argv, "Multiple operations are not supported"); - - mode = MODE_BENCHMARK; - break; - case OPT_READ: - if (mode != MODE_INVALID) Usage(argc, argv, "Multiple operations are not supported"); - - mode = MODE_READ; - if (optarg) addr = optarg; - else if ((optind < argc)&&(argv[optind][0] != '-')) addr = argv[optind++]; - break; - case OPT_WRITE: - if (mode != MODE_INVALID) Usage(argc, argv, "Multiple operations are not supported"); - - mode = MODE_WRITE; - if (optarg) addr = optarg; - else if ((optind < argc)&&(argv[optind][0] != '-')) addr = argv[optind++]; - break; - case OPT_DEVICE: - fpga_device = optarg; - break; - case OPT_BAR: - if ((sscanf(optarg,"%u", &bar) != 1)||(bar < 0)||(bar >= MAX_BANKS)) Usage(argc, argv, "Invalid data bank (%s) is specified", optarg); - break; - case OPT_ACCESS: - if (sscanf(optarg, "%i", &access) != 1) access = 0; - switch (access) { - case 8: access = 1; break; - case 16: access = 2; break; - case 32: access = 4; break; - case 64: access = 8; break; - default: Usage(argc, argv, "Invalid data width (%s) is specified", optarg); - } - break; - case OPT_SIZE: - if (sscanf(optarg, "%u", &size) != 1) - Usage(argc, argv, "Invalid size is specified (%s)", optarg); - break; - default: - Usage(argc, argv, "Unknown option (%s)", argv[optind]); - } - } - - if (mode == MODE_INVALID) { - if (argc > 1) Usage(argc, argv, "Operation is not specified"); - else Usage(argc, argv, NULL); - } - - if (addr) { - if (sscanf(addr, "%lx", &start) != 1) Usage(argc, argv, "Invalid address (%s) is specified", addr); + for (i = 0; registers[i].size; i++) { + if (!strcasecmp(registers[i].name, reg)) return i; } - switch (mode) { - case MODE_WRITE: - if ((argc - optind) != size) Usage(argc, argv, "The %i data values is specified, but %i required", argc - optind, size); - case MODE_READ: - if (!addr) Usage(argc, argv, "The address is not specified"); - break; - default: - if (argc > optind) Usage(argc, argv, "Invalid non-option parameters are supplied"); - } + return -1; +}; - handle = open(fpga_device, O_RDWR); - if (handle < 0) Error("Failed to open FPGA device: %s", fpga_device); - - switch (mode) { - case MODE_INFO: - Info(handle); - break; - case MODE_LIST: - List(handle); - break; - case MODE_BENCHMARK: - Benchmark(handle, bar); - break; - case MODE_READ: - if (addr) { - ReadData(handle, bar, start, size, access); - } else { - Error("Address to read is not specified"); - } - break; - case MODE_WRITE: - WriteData(handle, bar, start, size, access, argv + optind); - break; - } - close(handle); -} |