From 80d999195b2b1896fcd1878a44b0ece474fe678c Mon Sep 17 00:00:00 2001 From: "Suren A. Chilingaryan" Date: Fri, 8 Jul 2011 14:07:59 +0200 Subject: Add some check to verify if NWL DMA engine have been successfully initialized --- dma/nwl.c | 8 +++----- 1 file changed, 3 insertions(+), 5 deletions(-) (limited to 'dma/nwl.c') diff --git a/dma/nwl.c b/dma/nwl.c index 32cc2db..f05472c 100644 --- a/dma/nwl.c +++ b/dma/nwl.c @@ -26,13 +26,10 @@ pcilib_register_bank_description_t ipecamera_register_banks[] = { { PCILIB_REGISTER_DMABANK0, PCILIB_BAR0, 128, PCILIB_DEFAULT_PROTOCOL, DMA_NWL_OFFSET, DMA_NWL_OFFSET, PCILIB_LITTLE_ENDIAN, 32, PCILIB_LITTLE_ENDIAN, "%lx", "dma", "NorthWest Logick DMA Engine" }, { 0, 0, 0, 0, 0, 0, 0, 0, 0, NULL, NULL, NULL } }; - -pcilib_register_description_t dma_nwl_registers[] = { - {0, 0, 32, 0, PCILIB_REGISTER_R , PCILIB_REGISTER_DMABANK, "dma_capabilities", ""}, - {1, 0, 32, 0, PCILIB_REGISTER_RW, PCILIB_REGISTER_DMABANK, "dma_control", ""}, -}; */ + + typedef struct { pcilib_dma_engine_description_t desc; char *base_addr; @@ -71,6 +68,7 @@ static int nwl_read_engine_config(nwl_dma_t *ctx, pcilib_nwl_engine_description_ if ((val & DMA_ENG_PRESENT_MASK) == 0) return PCILIB_ERROR_NOTAVAILABLE; info->desc.addr = (val & DMA_ENG_NUMBER) >> DMA_ENG_NUMBER_SHIFT; + if ((info->desc.addr > PCILIB_MAX_DMA_ENGINES)||(info->desc.addr < 0)) return PCILIB_ERROR_INVALID_DATA; switch (val & DMA_ENG_DIRECTION_MASK) { case DMA_ENG_C2S: -- cgit v1.2.3