More structural changes to get ready for stand-alone event engines

1 files changed, 0 insertions, 542 deletions

diff --git a/pci.c b/pci.c
deleted file mode 100644
index 61571fc..0000000
--- a/pci.c
+++ /dev/null
@@ -1,542 +0,0 @@
-//#define PCILIB_FILE_IO
-#define _BSD_SOURCE
-#define _POSIX_C_SOURCE 200809L
-
-#include <stdio.h>
-#include <string.h>
-#include <strings.h>
-#include <stdlib.h>
-#include <stdint.h>
-#include <fcntl.h>
-#include <unistd.h>
-#include <sys/ioctl.h>
-#include <sys/mman.h>
-#include <arpa/inet.h>
-#include <errno.h>
-#include <assert.h>
-
-#include "pcilib.h"
-#include "pci.h"
-#include "tools.h"
-#include "error.h"
-#include "model.h"
-
-static int pcilib_detect_model(pcilib_t *ctx, const char *model) {
-    int i, j;
-
-	// Registers & Banks must be copied!
-
-    if (model) {
-	    // Check for DMA models
-	for (i = 0; pcilib_dma[i].name; i++) {
-	    if (!strcasecmp(model, pcilib_dma[i].name))
-		break;
-	}
-
-	if (pcilib_dma[i].api) {
-	    memcpy(&ctx->dma, &pcilib_dma[i], sizeof(pcilib_dma_description_t));
-	    ctx->model_info.dma = &ctx->dma;
-
-	    if (pcilib_dma[i].banks)
-	        pcilib_add_register_banks(ctx, 0, pcilib_dma[i].banks);
-	    
-	    if (pcilib_dma[i].registers)
-		pcilib_add_registers(ctx, 0, pcilib_dma[i].registers);
-
-	    if (pcilib_dma[i].engines) {
-		for (j = 0; pcilib_dma[i].engines[j].addr_bits; j++)
-		memcpy(ctx->engines, pcilib_dma[i].engines, j * sizeof(pcilib_dma_engine_description_t));
-		ctx->num_engines = j;
-	    } else
-		ctx->dma.engines = ctx->engines;
-
-	    return 0;
-	}
-
-	// Check for XML models (DMA + XML registers)
-
-	// Check for specified model
-	
-	// Iterate other all other models
-    }
-
-    // Check for all installed models
-    // memcpy(&ctx->model_info, model, sizeof(pcilib_model_description_t));
-    // how we reconcile the banks from event model and dma description? The banks specified in the DMA description should override corresponding banks of events...
-
-
-    if (model)
-	return PCILIB_ERROR_NOTFOUND;
-
-	// Otherwise, simple pci access (all model members are set to NULL)
-
-    return 0;
-}
-
-
-
-pcilib_t *pcilib_open(const char *device, const char *model) {
-    int err;
-    size_t i;
-    pcilib_t *ctx = malloc(sizeof(pcilib_t));
-
-    if (ctx) {
-	memset(ctx, 0, sizeof(pcilib_t));
-	
-	ctx->handle = open(device, O_RDWR);
-	if (ctx->handle < 0) {
-	    pcilib_error("Error opening device (%s)", device);
-	    free(ctx);
-	    return NULL;
-	}
-	
-	ctx->page_mask = (uintptr_t)-1;
-	ctx->model = model?strdup(model):NULL;
-
-	ctx->alloc_reg = PCILIB_DEFAULT_REGISTER_SPACE;
-	ctx->registers = (pcilib_register_description_t *)malloc(PCILIB_DEFAULT_REGISTER_SPACE * sizeof(pcilib_register_description_t));
-/*	ctx->banks = (pcilib_register_bank_context_t *)malloc(PCILIB_MAX_BANKS * sizeof(pcilib_register_bank_context_t));
-	ctx->ranges = (pcilib_register_range_t *)malloc(PCILIB_MAX_RANGES * sizeof(pcilib_register_range_t));
-	ctx->protocols
-	ctx->engines*/
-	
-	if ((!ctx->registers)/*||(!ctx->banks)||(!ctx->ranges)*/) {
-	    pcilib_error("Error allocating memory for register model");
-	    pcilib_close(ctx);
-	    free(ctx);
-	    return NULL;
-	}
-	
-	memset(ctx->registers, 0, sizeof(pcilib_register_description_t));
-	memset(ctx->banks, 0, sizeof(pcilib_register_bank_description_t));
-	memset(ctx->ranges, 0, sizeof(pcilib_register_range_t));
-	
-	for (i = 0; pcilib_protocols[i].api; i++);
-	memcpy(ctx->protocols, pcilib_protocols, i * sizeof(pcilib_register_protocol_description_t));
-
-	ctx->model_info.registers = ctx->registers;
-	ctx->model_info.banks = ctx->banks;
-	ctx->model_info.protocols = ctx->protocols;
-	ctx->model_info.ranges = ctx->ranges;
-
-	err = pcilib_detect_model(ctx, model);
-	if (err) {
-	    const pcilib_board_info_t *board_info = pcilib_get_board_info(ctx);
-	    if (board_info)
-	        pcilib_error("Error (%i) configuring model %s (%x:%x)", err, (model?model:""), board_info->vendor_id, board_info->device_id);
-	    else
-	        pcilib_error("Error (%i) configuring model %s", err, (model?model:""));
-	    pcilib_close(ctx);
-	    free(ctx);
-	    return NULL;
-	}
-
-	err = pcilib_init_register_banks(ctx);
-	if (err) {
-	    pcilib_error("Error (%i) initializing regiser banks\n", err);
-	    pcilib_close(ctx);
-	    free(ctx);
-	    return NULL;
-	}
-	
-	err = pcilib_init_event_engine(ctx);
-	if (err) {
-	    pcilib_error("Error (%i) initializing event engine\n", err);
-	    pcilib_close(ctx);
-	    free(ctx);
-	    return NULL;
-	}
-    }
-
-    return ctx;
-}
-
-
-const pcilib_board_info_t *pcilib_get_board_info(pcilib_t *ctx) {
-    int ret;
-    
-    if (ctx->page_mask ==  (uintptr_t)-1) {
-	ret = ioctl( ctx->handle, PCIDRIVER_IOC_PCI_INFO, &ctx->board_info );
-	if (ret) {
-	    pcilib_error("PCIDRIVER_IOC_PCI_INFO ioctl have failed");
-	    return NULL;
-	}
-	
-	ctx->page_mask = pcilib_get_page_mask();
-    }
-    
-    return &ctx->board_info;
-}
-
-
-pcilib_context_t *pcilib_get_implementation_context(pcilib_t *ctx) {
-    return ctx->event_ctx;
-}
-
-
-static pcilib_bar_t pcilib_detect_bar(pcilib_t *ctx, uintptr_t addr, size_t size) {
-    int n = 0;
-    pcilib_bar_t i;
-	
-    const pcilib_board_info_t *board_info = pcilib_get_board_info(ctx);
-    if (!board_info) return PCILIB_BAR_INVALID;
-		
-    for (i = 0; i < PCILIB_MAX_BARS; i++) {
-	if (board_info->bar_length[i] > 0) {
-	    if ((addr >= board_info->bar_start[i])&&((board_info->bar_start[i] + board_info->bar_length[i]) >= (addr + size))) return i;
-
-	    if (n) n = -1;
-	    else n = i + 1;
-	}
-    }
-
-    if (n > 0) return n - 1;
-
-    return PCILIB_BAR_INVALID;
-}
-
-int pcilib_detect_address(pcilib_t *ctx, pcilib_bar_t *bar, uintptr_t *addr, size_t size) {
-    const pcilib_board_info_t *board_info = pcilib_get_board_info(ctx);
-    if (!board_info) return PCILIB_ERROR_NOTFOUND;
-    
-    if (*bar == PCILIB_BAR_DETECT) {
-	*bar = pcilib_detect_bar(ctx, *addr, size);
-	if (*bar == PCILIB_BAR_INVALID) {
-	    pcilib_error("The requested data block at address 0x%x with size %zu does not belongs to any available memory bank", *addr, size);
-	    return PCILIB_ERROR_NOTFOUND;
-	}
-	if (*addr < board_info->bar_start[*bar]) 
-	    *addr += board_info->bar_start[*bar];
-    } else {
-	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)) {
-		*addr += board_info->bar_start[*bar];
-	    } else {
-		pcilib_error("The requested data block at address 0x%x with size %zu does not belong the specified memory bank (Bar %i: starting at 0x%x with size 0x%x)", *addr, size, *bar, board_info->bar_start[*bar], board_info->bar_length[*bar]);
-		return PCILIB_ERROR_NOTFOUND;
-	    }
-	}
-    }
-
-    *addr -= board_info->bar_start[*bar];
-    *addr += board_info->bar_start[*bar] & ctx->page_mask;
-
-    return 0;
-}
-
-void *pcilib_map_bar(pcilib_t *ctx, pcilib_bar_t bar) {
-    void *res;
-    int ret; 
-
-    const pcilib_board_info_t *board_info = pcilib_get_board_info(ctx);
-    if (!board_info) return NULL;
-    
-    if (ctx->bar_space[bar]) return ctx->bar_space[bar];
-    
-    ret = ioctl( ctx->handle, PCIDRIVER_IOC_MMAP_MODE, PCIDRIVER_MMAP_PCI );
-    if (ret) {
-	pcilib_error("PCIDRIVER_IOC_MMAP_MODE ioctl have failed", bar);
-	return NULL;
-    }
-
-    ret = ioctl( ctx->handle, PCIDRIVER_IOC_MMAP_AREA, PCIDRIVER_BAR0 + bar );
-    if (ret) {
-	pcilib_error("PCIDRIVER_IOC_MMAP_AREA ioctl have failed for bank %i", bar);
-	return NULL;
-    }
-
-#ifdef PCILIB_FILE_IO
-    file_io_handle = open("/root/data", O_RDWR);
-    res = mmap( 0, board_info->bar_length[bar], PROT_WRITE | PROT_READ, MAP_SHARED, ctx->file_io_handle, 0 );
-#else
-    res = mmap( 0, board_info->bar_length[bar], PROT_WRITE | PROT_READ, MAP_SHARED, ctx->handle, 0 );
-#endif
-    if ((!res)||(res == MAP_FAILED)) {
-	pcilib_error("Failed to mmap data bank %i", bar);
-	return NULL;
-    }
-
-    
-    return res;
-}
-
-void pcilib_unmap_bar(pcilib_t *ctx, pcilib_bar_t bar, void *data) {
-    const pcilib_board_info_t *board_info = pcilib_get_board_info(ctx);
-    if (!board_info) return;
-
-    if (ctx->bar_space[bar]) return;
-    
-    munmap(data, board_info->bar_length[bar]);
-#ifdef PCILIB_FILE_IO
-    close(ctx->file_io_handle);
-#endif
-}
-
-int pcilib_map_register_space(pcilib_t *ctx) {
-    int err;
-    pcilib_register_bank_t i;
-    
-    if (!ctx->reg_bar_mapped)  {
-	const pcilib_model_description_t *model_info = pcilib_get_model_description(ctx);
-	const pcilib_register_bank_description_t *banks = model_info->banks;
-    
-	for (i = 0; ((banks)&&(banks[i].access)); i++) {
-//	    uint32_t buf[2];
-	    void *reg_space;
-            pcilib_bar_t bar = banks[i].bar;
-
-	    if (bar == PCILIB_BAR_DETECT) {
-		uintptr_t addr = banks[0].read_addr;
-	    
-		err = pcilib_detect_address(ctx, &bar, &addr, 1);
-		if (err) return err;
-		
-		if (!ctx->bar_space[bar]) {
-		    reg_space = pcilib_map_bar(ctx, bar);
-//		    pcilib_memcpy(&buf, reg_space, 8);
-	    
-		    if (reg_space) {
-			ctx->bar_space[bar] = reg_space;
-		    } else {
-			return PCILIB_ERROR_FAILED;
-		    }
-		}
-	    } else if (!ctx->bar_space[bar]) {
-		reg_space = pcilib_map_bar(ctx, bar);
-		if (reg_space) {
-		    ctx->bar_space[bar] = reg_space;
-		} else {
-		    return PCILIB_ERROR_FAILED;
-		}
-//		pcilib_memcpy(&buf, reg_space, 8);
-		
-	    }
-	    
-	    if (!i) ctx->reg_bar = bar;
-	}
-	
-	
-	ctx->reg_bar_mapped = 1;
-    }
-    
-    return 0;
-}
-
-int pcilib_map_data_space(pcilib_t *ctx, uintptr_t addr) {
-    int err;
-    pcilib_bar_t i;
-    
-    if (!ctx->data_bar_mapped) {
-        const pcilib_board_info_t *board_info = pcilib_get_board_info(ctx);
-	if (!board_info) return PCILIB_ERROR_FAILED;
-
-	err = pcilib_map_register_space(ctx);
-	if (err) {
-	    pcilib_error("Error mapping register space");
-	    return err;
-	}
-	
-	int data_bar = -1;	
-	
-	for (i = 0; i < PCILIB_MAX_BARS; i++) {
-	    if ((ctx->bar_space[i])||(!board_info->bar_length[i])) continue;
-	    
-	    if (addr) {
-	        if (board_info->bar_start[i] == addr) {
-		    data_bar = i;
-		    break;
-		}
-	    } else {
-		if (data_bar >= 0) {
-		    data_bar = -1;
-		    break;
-		}
-		
-		data_bar = i;
-	    }
-	}
-	    
-
-	if (data_bar < 0) {
-	    if (addr) pcilib_error("Unable to find the specified data space (%lx)", addr);
-	    else pcilib_error("Unable to find the data space");
-	    return PCILIB_ERROR_NOTFOUND;
-	}
-	
-	ctx->data_bar = data_bar;
-	
-	if (!ctx->bar_space[data_bar]) {
-	    char *data_space = pcilib_map_bar(ctx, data_bar);
-	    if (data_space) ctx->bar_space[data_bar] = data_space;
-	    else {
-	        pcilib_error("Unable to map the data space");
-		return PCILIB_ERROR_FAILED;
-	    }
-	}
-	
-	ctx->data_bar_mapped = 0;
-    }
-    
-    return 0;
-}
-	
-char  *pcilib_resolve_register_address(pcilib_t *ctx, pcilib_bar_t bar, uintptr_t addr) {
-    if (bar == PCILIB_BAR_DETECT) {
-	    // First checking the default register bar
-	size_t offset = addr - ctx->board_info.bar_start[ctx->reg_bar];
-	if ((addr > ctx->board_info.bar_start[ctx->reg_bar])&&(offset < ctx->board_info.bar_length[ctx->reg_bar])) {
-	    if (!ctx->bar_space[ctx->reg_bar]) {
-		pcilib_error("The register bar is not mapped");
-		return NULL;
-	    }
-
-	    return ctx->bar_space[ctx->reg_bar] + offset + (ctx->board_info.bar_start[ctx->reg_bar] & ctx->page_mask);
-	}
-	    
-	    // Otherwise trying to detect
-	bar = pcilib_detect_bar(ctx, addr, 1);
-	if (bar != PCILIB_BAR_INVALID) {
-	    size_t offset = addr - ctx->board_info.bar_start[bar];
-	    if ((offset < ctx->board_info.bar_length[bar])&&(ctx->bar_space[bar])) {
-		if (!ctx->bar_space[bar]) {
-		    pcilib_error("The requested bar (%i) is not mapped", bar);
-		    return NULL;
-		}
-		return ctx->bar_space[bar] + offset + (ctx->board_info.bar_start[bar] & ctx->page_mask);
-	    }
-	}
-    } else {
-	if (!ctx->bar_space[bar]) {
-	    pcilib_error("The requested bar (%i) is not mapped", bar);
-	    return NULL;
-	}
-	
-	if (addr < ctx->board_info.bar_length[bar]) {
-	    return ctx->bar_space[bar] + addr + (ctx->board_info.bar_start[bar] & ctx->page_mask);
-	}
-	
-	if ((addr >= ctx->board_info.bar_start[bar])&&(addr < (ctx->board_info.bar_start[bar] + ctx->board_info.bar_length[ctx->reg_bar]))) {
-	    return ctx->bar_space[bar] + (addr - ctx->board_info.bar_start[bar]) + (ctx->board_info.bar_start[bar] & ctx->page_mask);
-	}
-    }
-
-    return NULL;
-}
-
-char *pcilib_resolve_data_space(pcilib_t *ctx, uintptr_t addr, size_t *size) {
-    int err;
-    
-    err = pcilib_map_data_space(ctx, addr);
-    if (err) {
-	pcilib_error("Failed to map the specified address space (%lx)", addr);
-	return NULL;
-    }
-    
-    if (size) *size = ctx->board_info.bar_length[ctx->data_bar];
-    
-    return ctx->bar_space[ctx->data_bar] + (ctx->board_info.bar_start[ctx->data_bar] & ctx->page_mask);
-}
-
-
-void pcilib_close(pcilib_t *ctx) {
-    pcilib_bar_t i;
-
-    if (ctx) {
-	const pcilib_model_description_t *model_info = pcilib_get_model_description(ctx);
-	const pcilib_event_api_description_t *eapi = model_info->api;
-	const pcilib_dma_api_description_t *dapi = NULL;
-	
-	if (model_info->dma) dapi = model_info->dma->api;
-
-        if ((eapi)&&(eapi->free)) eapi->free(ctx->event_ctx);
-        if ((dapi)&&(dapi->free)) dapi->free(ctx->dma_ctx);
-
-	pcilib_free_register_banks(ctx);
-	
-	if (ctx->kmem_list) {
-	    pcilib_warning("Not all kernel buffers are properly cleaned");
-	
-	    while (ctx->kmem_list) {
-		pcilib_free_kernel_memory(ctx, ctx->kmem_list, 0);
-	    }
-	}
-	
-	for (i = 0; i < PCILIB_MAX_BARS; i++) {
-	    if (ctx->bar_space[i]) {
-		char *ptr = ctx->bar_space[i];
-		ctx->bar_space[i] = NULL;
-		pcilib_unmap_bar(ctx, i, ptr);
-	    }
-	}
-
-	if (ctx->registers)
-	    free(ctx->registers);
-	
-	if (ctx->model)
-	    free(ctx->model);
-	
-	if (ctx->handle >= 0)
-	    close(ctx->handle);
-	
-	free(ctx);
-    }
-}
-
-int pcilib_read(pcilib_t *ctx, pcilib_bar_t bar, uintptr_t addr, size_t size, void *buf) {
-    void *data;
-
-    pcilib_detect_address(ctx, &bar, &addr, size);
-    data = pcilib_map_bar(ctx, bar);
-
-    pcilib_memcpy(buf, data + addr, size);
-
-    pcilib_unmap_bar(ctx, bar, data);
-
-    return 0;
-}
-
-int pcilib_write(pcilib_t *ctx, pcilib_bar_t bar, uintptr_t addr, size_t size, void *buf) {
-    void *data;
-
-    pcilib_detect_address(ctx, &bar, &addr, size);
-    data = pcilib_map_bar(ctx, bar);
-
-    pcilib_memcpy(data + addr, buf, size);
-
-    pcilib_unmap_bar(ctx, bar, data);
-
-    return 0;
-}
-
-
-int pcilib_read_fifo(pcilib_t *ctx, pcilib_bar_t bar, uintptr_t addr, uint8_t fifo_size, size_t n, void *buf) {
-    int i;
-    void *data;
-
-    pcilib_detect_address(ctx, &bar, &addr, fifo_size);
-    data = pcilib_map_bar(ctx, bar);
-
-    for (i = 0; i < n; i++) {
-	pcilib_memcpy(buf + i * fifo_size, data + addr, fifo_size);
-    }
-
-    pcilib_unmap_bar(ctx, bar, data);
-
-    return 0;
-}
-
-int pcilib_write_fifo(pcilib_t *ctx, pcilib_bar_t bar, uintptr_t addr, uint8_t fifo_size, size_t n, void *buf) {
-    int i;
-    void *data;
-
-    pcilib_detect_address(ctx, &bar, &addr, fifo_size);
-    data = pcilib_map_bar(ctx, bar);
-
-    for (i = 0; i < n; i++) {
-	pcilib_memcpy(data + addr, buf + i * fifo_size, fifo_size);
-    }
-
-    pcilib_unmap_bar(ctx, bar, data);
-
-    return 0;
-}