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/* SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause) */
/* Copyright(c) 2015-17 Intel Corporation. */
#ifndef __SDW_INTEL_LOCAL_H
#define __SDW_INTEL_LOCAL_H
/**
* struct sdw_intel_link_res - Soundwire Intel link resource structure,
* typically populated by the controller driver.
* @hw_ops: platform-specific ops
* @mmio_base: mmio base of SoundWire registers
* @registers: Link IO registers base
* @shim: Audio shim pointer
* @alh: ALH (Audio Link Hub) pointer
* @irq: Interrupt line
* @ops: Shim callback ops
* @dev: device implementing hw_params and free callbacks
* @shim_lock: mutex to handle access to shared SHIM registers
* @shim_mask: global pointer to check SHIM register initialization
* @clock_stop_quirks: mask defining requested behavior on pm_suspend
* @link_mask: global mask needed for power-up/down sequences
* @cdns: Cadence master descriptor
* @list: used to walk-through all masters exposed by the same controller
*/
struct sdw_intel_link_res {
const struct sdw_intel_hw_ops *hw_ops;
void __iomem *mmio_base; /* not strictly needed, useful for debug */
void __iomem *registers;
void __iomem *shim;
void __iomem *alh;
int irq;
const struct sdw_intel_ops *ops;
struct device *dev;
struct mutex *shim_lock; /* protect shared registers */
u32 *shim_mask;
u32 clock_stop_quirks;
u32 link_mask;
struct sdw_cdns *cdns;
struct list_head list;
};
struct sdw_intel {
struct sdw_cdns cdns;
int instance;
struct sdw_intel_link_res *link_res;
bool startup_done;
#ifdef CONFIG_DEBUG_FS
struct dentry *debugfs;
#endif
};
int intel_link_startup(struct auxiliary_device *auxdev);
int intel_link_process_wakeen_event(struct auxiliary_device *auxdev);
struct sdw_intel_link_dev {
struct auxiliary_device auxdev;
struct sdw_intel_link_res link_res;
};
#define auxiliary_dev_to_sdw_intel_link_dev(auxiliary_dev) \
container_of(auxiliary_dev, struct sdw_intel_link_dev, auxdev)
#define SDW_INTEL_CHECK_OPS(sdw, cb) ((sdw) && (sdw)->link_res && (sdw)->link_res->hw_ops && \
(sdw)->link_res->hw_ops->cb)
#define SDW_INTEL_OPS(sdw, cb) ((sdw)->link_res->hw_ops->cb)
static inline void sdw_intel_debugfs_init(struct sdw_intel *sdw)
{
if (SDW_INTEL_CHECK_OPS(sdw, debugfs_init))
SDW_INTEL_OPS(sdw, debugfs_init)(sdw);
}
static inline void sdw_intel_debugfs_exit(struct sdw_intel *sdw)
{
if (SDW_INTEL_CHECK_OPS(sdw, debugfs_exit))
SDW_INTEL_OPS(sdw, debugfs_exit)(sdw);
}
static inline int sdw_intel_register_dai(struct sdw_intel *sdw)
{
if (SDW_INTEL_CHECK_OPS(sdw, register_dai))
return SDW_INTEL_OPS(sdw, register_dai)(sdw);
return -ENOTSUPP;
}
#endif /* __SDW_INTEL_LOCAL_H */
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