LXR linux/drivers/soundwire/cadence

   1// SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause)
   2// Copyright(c) 2015-17 Intel Corporation.
   3
   4#ifndef __SDW_CADENCE_H
   5#define __SDW_CADENCE_H
   6
   7/**
   8 * struct sdw_cdns - Cadence driver context
   9 * @dev: Linux device
  10 * @bus: Bus handle
  11 * @instance: instance number
  12 * @response_buf: SoundWire response buffer
  13 * @tx_complete: Tx completion
  14 * @defer: Defer pointer
  15 * @registers: Cadence registers
  16 * @link_up: Link status
  17 * @msg_count: Messages sent on bus
  18 */
  19struct sdw_cdns {
  20        struct device *dev;
  21        struct sdw_bus bus;
  22        unsigned int instance;
  23
  24        u32 response_buf[0x80];
  25        struct completion tx_complete;
  26        struct sdw_defer *defer;
  27
  28        void __iomem *registers;
  29
  30        bool link_up;
  31        unsigned int msg_count;
  32};
  33
  34#define bus_to_cdns(_bus) container_of(_bus, struct sdw_cdns, bus)
  35
  36/* Exported symbols */
  37
  38int sdw_cdns_probe(struct sdw_cdns *cdns);
  39extern struct sdw_master_ops sdw_cdns_master_ops;
  40
  41irqreturn_t sdw_cdns_irq(int irq, void *dev_id);
  42irqreturn_t sdw_cdns_thread(int irq, void *dev_id);
  43
  44int sdw_cdns_init(struct sdw_cdns *cdns);
  45int sdw_cdns_enable_interrupt(struct sdw_cdns *cdns);
  46
  47
  48#endif /* __SDW_CADENCE_H */
  49