From 9e424252a35879f121e7ea4531a9ab3dda56d595 Mon Sep 17 00:00:00 2001 From: "Suren A. Chilingaryan" Date: Mon, 18 Jul 2011 16:42:51 +0200 Subject: IRQ acknowledgement support in the engine API --- dma.c | 24 ++++++++++++++++++++++-- 1 file changed, 22 insertions(+), 2 deletions(-) (limited to 'dma.c') diff --git a/dma.c b/dma.c index 7ae56f7..1bab0f9 100644 --- a/dma.c +++ b/dma.c @@ -114,7 +114,6 @@ int pcilib_enable_irq(pcilib_t *ctx, pcilib_irq_type_t irq_type, pcilib_dma_flag } if (!ctx->model_info.dma_api->enable_irq) { - //pcilib_error("The IRQs are not supported by configured DMA engine"); return 0; } @@ -136,13 +135,34 @@ int pcilib_disable_irq(pcilib_t *ctx, pcilib_dma_flags_t flags) { } if (!ctx->model_info.dma_api->disable_irq) { - //pcilib_error("The IRQs are not supported by configured DMA engine"); return 0; } return ctx->model_info.dma_api->disable_irq(ctx->dma_ctx, flags); } +int pcilib_acknowledge_irq(pcilib_t *ctx, pcilib_irq_type_t irq_type, pcilib_irq_source_t irq_source) { + int err; + + const pcilib_dma_info_t *info = pcilib_get_dma_info(ctx); + if (!info) { + pcilib_error("DMA is not supported by the device"); + return PCILIB_ERROR_NOTSUPPORTED; + } + + if (!ctx->model_info.dma_api) { + pcilib_error("DMA Engine is not configured in the current model"); + return PCILIB_ERROR_NOTAVAILABLE; + } + + if (!ctx->model_info.dma_api->acknowledge_irq) { + return 0; + } + + return ctx->model_info.dma_api->acknowledge_irq(ctx->dma_ctx, irq_type, irq_source); +} + + typedef struct { size_t size; -- cgit v1.2.3