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- /* Copyright (c) 2015-2018, The Linux Foundation. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that 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 _DPU_HW_VBIF_H
- #define _DPU_HW_VBIF_H
- #include "dpu_hw_catalog.h"
- #include "dpu_hw_mdss.h"
- #include "dpu_hw_util.h"
- struct dpu_hw_vbif;
- /**
- * struct dpu_hw_vbif_ops : Interface to the VBIF hardware driver functions
- * Assumption is these functions will be called after clocks are enabled
- */
- struct dpu_hw_vbif_ops {
- /**
- * set_limit_conf - set transaction limit config
- * @vbif: vbif context driver
- * @xin_id: client interface identifier
- * @rd: true for read limit; false for write limit
- * @limit: outstanding transaction limit
- */
- void (*set_limit_conf)(struct dpu_hw_vbif *vbif,
- u32 xin_id, bool rd, u32 limit);
- /**
- * get_limit_conf - get transaction limit config
- * @vbif: vbif context driver
- * @xin_id: client interface identifier
- * @rd: true for read limit; false for write limit
- * @return: outstanding transaction limit
- */
- u32 (*get_limit_conf)(struct dpu_hw_vbif *vbif,
- u32 xin_id, bool rd);
- /**
- * set_halt_ctrl - set halt control
- * @vbif: vbif context driver
- * @xin_id: client interface identifier
- * @enable: halt control enable
- */
- void (*set_halt_ctrl)(struct dpu_hw_vbif *vbif,
- u32 xin_id, bool enable);
- /**
- * get_halt_ctrl - get halt control
- * @vbif: vbif context driver
- * @xin_id: client interface identifier
- * @return: halt control enable
- */
- bool (*get_halt_ctrl)(struct dpu_hw_vbif *vbif,
- u32 xin_id);
- /**
- * set_qos_remap - set QoS priority remap
- * @vbif: vbif context driver
- * @xin_id: client interface identifier
- * @level: priority level
- * @remap_level: remapped level
- */
- void (*set_qos_remap)(struct dpu_hw_vbif *vbif,
- u32 xin_id, u32 level, u32 remap_level);
- /**
- * set_mem_type - set memory type
- * @vbif: vbif context driver
- * @xin_id: client interface identifier
- * @value: memory type value
- */
- void (*set_mem_type)(struct dpu_hw_vbif *vbif,
- u32 xin_id, u32 value);
- /**
- * clear_errors - clear any vbif errors
- * This function clears any detected pending/source errors
- * on the VBIF interface, and optionally returns the detected
- * error mask(s).
- * @vbif: vbif context driver
- * @pnd_errors: pointer to pending error reporting variable
- * @src_errors: pointer to source error reporting variable
- */
- void (*clear_errors)(struct dpu_hw_vbif *vbif,
- u32 *pnd_errors, u32 *src_errors);
- /**
- * set_write_gather_en - set write_gather enable
- * @vbif: vbif context driver
- * @xin_id: client interface identifier
- */
- void (*set_write_gather_en)(struct dpu_hw_vbif *vbif, u32 xin_id);
- };
- struct dpu_hw_vbif {
- /* base */
- struct dpu_hw_blk_reg_map hw;
- /* vbif */
- enum dpu_vbif idx;
- const struct dpu_vbif_cfg *cap;
- /* ops */
- struct dpu_hw_vbif_ops ops;
- };
- /**
- * dpu_hw_vbif_init - initializes the vbif driver for the passed interface idx
- * @idx: Interface index for which driver object is required
- * @addr: Mapped register io address of MDSS
- * @m: Pointer to mdss catalog data
- */
- struct dpu_hw_vbif *dpu_hw_vbif_init(enum dpu_vbif idx,
- void __iomem *addr,
- const struct dpu_mdss_cfg *m);
- void dpu_hw_vbif_destroy(struct dpu_hw_vbif *vbif);
- #endif /*_DPU_HW_VBIF_H */
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