diff options
Diffstat (limited to 'drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_include/host/dma_public.h')
-rw-r--r-- | drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_include/host/dma_public.h | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_include/host/dma_public.h b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_include/host/dma_public.h new file mode 100644 index 000000000000..1d5e38ffe938 --- /dev/null +++ b/drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_include/host/dma_public.h @@ -0,0 +1,73 @@ +/* + * Support for Intel Camera Imaging ISP subsystem. + * Copyright (c) 2015, Intel Corporation. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + */ + +#ifndef __DMA_PUBLIC_H_INCLUDED__ +#define __DMA_PUBLIC_H_INCLUDED__ + +#include "system_types.h" + +typedef struct dma_state_s dma_state_t; + +/*! Read the control registers of DMA[ID] + + \param ID[in] DMA identifier + \param state[out] input formatter state structure + + \return none, state = DMA[ID].state + */ +extern void dma_get_state( + const dma_ID_t ID, + dma_state_t *state); + +/*! Write to a control register of DMA[ID] + + \param ID[in] DMA identifier + \param reg[in] register index + \param value[in] The data to be written + + \return none, DMA[ID].ctrl[reg] = value + */ +STORAGE_CLASS_DMA_H void dma_reg_store( + const dma_ID_t ID, + const unsigned int reg, + const hrt_data value); + +/*! Read from a control register of DMA[ID] + + \param ID[in] DMA identifier + \param reg[in] register index + \param value[in] The data to be written + + \return DMA[ID].ctrl[reg] + */ +STORAGE_CLASS_DMA_H hrt_data dma_reg_load( + const dma_ID_t ID, + const unsigned int reg); + + +/*! Set maximum burst size of DMA[ID] + + \param ID[in] DMA identifier + \param conn[in] Connection to set max burst size for + \param max_burst_size[in] Maximum burst size in words + + \return none +*/ +void +dma_set_max_burst_size( + dma_ID_t ID, + dma_connection conn, + uint32_t max_burst_size); + +#endif /* __DMA_PUBLIC_H_INCLUDED__ */ |