From e1265fa32837f457ee2c2fa259d12c9545af4bbf Mon Sep 17 00:00:00 2001 From: "Suren A. Chilingaryan" Date: Mon, 27 Apr 2015 02:28:57 +0200 Subject: First stand-alone ipecamera implementation --- dma/nwl.c | 139 -------------------------------------------------------------- 1 file changed, 139 deletions(-) delete mode 100644 dma/nwl.c (limited to 'dma/nwl.c') diff --git a/dma/nwl.c b/dma/nwl.c deleted file mode 100644 index 52b46ef..0000000 --- a/dma/nwl.c +++ /dev/null @@ -1,139 +0,0 @@ -#define _PCILIB_DMA_NWL_C -#define _BSD_SOURCE - -#include -#include -#include -#include -#include - -#include "pci.h" -#include "pcilib.h" -#include "error.h" -#include "tools.h" -#include "nwl_private.h" - -#include "nwl_defines.h" - -int dma_nwl_start(pcilib_dma_context_t *vctx, pcilib_dma_engine_t dma, pcilib_dma_flags_t flags) { - int err; - nwl_dma_t *ctx = (nwl_dma_t*)vctx; - - if (!ctx->started) { - // global initialization, should we do anything? - ctx->started = 1; - } - - if (dma == PCILIB_DMA_ENGINE_INVALID) return 0; - else if (dma > ctx->n_engines) return PCILIB_ERROR_INVALID_BANK; - - if (flags&PCILIB_DMA_FLAG_PERSISTENT) ctx->engines[dma].preserve = 1; - - err = dma_nwl_start_engine(ctx, dma); - - return err; -} - -int dma_nwl_stop(pcilib_dma_context_t *vctx, pcilib_dma_engine_t dma, pcilib_dma_flags_t flags) { - int err; - int preserving = 0; - - nwl_dma_t *ctx = (nwl_dma_t*)vctx; - - if (!ctx->started) return 0; - - // stop everything - if (dma == PCILIB_DMA_ENGINE_INVALID) { - for (dma = 0; dma < ctx->n_engines; dma++) { - if (flags&PCILIB_DMA_FLAG_PERSISTENT) { - ctx->engines[dma].preserve = 0; - } - - if (ctx->engines[dma].preserve) preserving = 1; - - err = dma_nwl_stop_engine(ctx, dma); - if (err) return err; - } - - // global cleanup, should we do anything? - if (!preserving) { - ctx->started = 0; - } - - return 0; - } - - if (dma > ctx->n_engines) return PCILIB_ERROR_INVALID_BANK; - - // ignorign previous setting if flag specified - if (flags&PCILIB_DMA_FLAG_PERSISTENT) { - ctx->engines[dma].preserve = 0; - } - - return dma_nwl_stop_engine(ctx, dma); -} - - -pcilib_dma_context_t *dma_nwl_init(pcilib_t *pcilib, pcilib_dma_modification_t type, void *arg) { - int i; - int err; - pcilib_dma_engine_t n_engines; - - pcilib_model_description_t *model_info = pcilib_get_model_description(pcilib); - - nwl_dma_t *ctx = malloc(sizeof(nwl_dma_t)); - if (ctx) { - memset(ctx, 0, sizeof(nwl_dma_t)); - ctx->pcilib = pcilib; - ctx->type = type; - - if (type == PCILIB_NWL_MODIFICATION_IPECAMERA) { - ctx->dmactx.ignore_eop = 1; - } - - pcilib_register_bank_t dma_bank = pcilib_find_bank_by_addr(pcilib, PCILIB_REGISTER_BANK_DMA); - if (dma_bank == PCILIB_REGISTER_BANK_INVALID) { - free(ctx); - pcilib_error("DMA Register Bank could not be found"); - return NULL; - } - - ctx->dma_bank = model_info->banks + dma_bank; - ctx->base_addr = pcilib_resolve_register_address(pcilib, ctx->dma_bank->bar, ctx->dma_bank->read_addr); - - for (i = 0, n_engines = 0; i < 2 * PCILIB_MAX_DMA_ENGINES; i++) { - char *addr = ctx->base_addr + DMA_OFFSET + i * DMA_ENGINE_PER_SIZE; - - memset(ctx->engines + n_engines, 0, sizeof(pcilib_nwl_engine_description_t)); - - err = dma_nwl_read_engine_config(ctx, ctx->engines + n_engines, addr); - if (err) continue; - - pcilib_set_dma_engine_description(pcilib, n_engines, (pcilib_dma_engine_description_t*)(ctx->engines + n_engines)); - ++n_engines; - } - pcilib_set_dma_engine_description(pcilib, n_engines, NULL); - - ctx->n_engines = n_engines; - - err = nwl_add_registers(ctx); - if (err) { - free(ctx); - pcilib_error("Failed to add DMA registers"); - return NULL; - } - } - return (pcilib_dma_context_t*)ctx; -} - -void dma_nwl_free(pcilib_dma_context_t *vctx) { - nwl_dma_t *ctx = (nwl_dma_t*)vctx; - - if (ctx) { - if (ctx->type == PCILIB_DMA_MODIFICATION_DEFAULT) dma_nwl_stop_loopback(ctx); - dma_nwl_free_irq(ctx); - dma_nwl_stop(vctx, PCILIB_DMA_ENGINE_ALL, PCILIB_DMA_FLAGS_DEFAULT); - - free(ctx); - } -} -- cgit v1.2.3