linux/drivers/soundwire/cadence_master.h

49 lines
1.1 KiB
C

// SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause)
// Copyright(c) 2015-17 Intel Corporation.
#ifndef __SDW_CADENCE_H
#define __SDW_CADENCE_H
/**
* struct sdw_cdns - Cadence driver context
* @dev: Linux device
* @bus: Bus handle
* @instance: instance number
* @response_buf: SoundWire response buffer
* @tx_complete: Tx completion
* @defer: Defer pointer
* @registers: Cadence registers
* @link_up: Link status
* @msg_count: Messages sent on bus
*/
struct sdw_cdns {
struct device *dev;
struct sdw_bus bus;
unsigned int instance;
u32 response_buf[0x80];
struct completion tx_complete;
struct sdw_defer *defer;
void __iomem *registers;
bool link_up;
unsigned int msg_count;
};
#define bus_to_cdns(_bus) container_of(_bus, struct sdw_cdns, bus)
/* Exported symbols */
int sdw_cdns_probe(struct sdw_cdns *cdns);
extern struct sdw_master_ops sdw_cdns_master_ops;
irqreturn_t sdw_cdns_irq(int irq, void *dev_id);
irqreturn_t sdw_cdns_thread(int irq, void *dev_id);
int sdw_cdns_init(struct sdw_cdns *cdns);
int sdw_cdns_enable_interrupt(struct sdw_cdns *cdns);
#endif /* __SDW_CADENCE_H */