/* * Driver for the Synopsys DesignWare DMA Controller * * Copyright (C) 2013 Intel Corporation * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. */ #ifndef _DW_DMAC_INTERNAL_H #define _DW_DMAC_INTERNAL_H #include <linux/device.h> #include <linux/dw_dmac.h> #include "regs.h" /** * struct dw_dma_chip - representation of DesignWare DMA controller hardware * @dev: struct device of the DMA controller * @irq: irq line * @regs: memory mapped I/O space * @dw: struct dw_dma that is filed by dw_dma_probe() */ struct dw_dma_chip { struct device *dev; int irq; void __iomem *regs; struct dw_dma *dw; }; /* Export to the platform drivers */ int dw_dma_probe(struct dw_dma_chip *chip, struct dw_dma_platform_data *pdata); int dw_dma_remove(struct dw_dma_chip *chip); void dw_dma_shutdown(struct dw_dma_chip *chip); #ifdef CONFIG_PM_SLEEP int dw_dma_suspend(struct dw_dma_chip *chip); int dw_dma_resume(struct dw_dma_chip *chip); #endif /* CONFIG_PM_SLEEP */ /** * dwc_get_dms - get destination master * @slave: pointer to the custom slave configuration * * Returns destination master in the custom slave configuration if defined, or * default value otherwise. */ static inline unsigned int dwc_get_dms(struct dw_dma_slave *slave) { return slave ? slave->dst_master : 0; } /** * dwc_get_sms - get source master * @slave: pointer to the custom slave configuration * * Returns source master in the custom slave configuration if defined, or * default value otherwise. */ static inline unsigned int dwc_get_sms(struct dw_dma_slave *slave) { return slave ? slave->src_master : 1; } #endif /* _DW_DMAC_INTERNAL_H */