956baa1992
Implement sdw_master_ops with support for xfer_msg, xfer_msg_defer and reset_page_addr. Since Cadence module doesn't know the systems it will be used, set the read_prop to the bus helper. Signed-off-by: Hardik T Shah <hardik.t.shah@intel.com> Signed-off-by: Sanyog Kale <sanyog.r.kale@intel.com> Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com> Acked-By: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Reviewed-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Vinod Koul <vinod.koul@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
48 lines
1.1 KiB
C
48 lines
1.1 KiB
C
// SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause)
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// Copyright(c) 2015-17 Intel Corporation.
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#ifndef __SDW_CADENCE_H
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#define __SDW_CADENCE_H
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/**
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* struct sdw_cdns - Cadence driver context
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* @dev: Linux device
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* @bus: Bus handle
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* @instance: instance number
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* @response_buf: SoundWire response buffer
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* @tx_complete: Tx completion
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* @defer: Defer pointer
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* @registers: Cadence registers
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* @link_up: Link status
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* @msg_count: Messages sent on bus
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*/
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struct sdw_cdns {
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struct device *dev;
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struct sdw_bus bus;
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unsigned int instance;
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u32 response_buf[0x80];
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struct completion tx_complete;
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struct sdw_defer *defer;
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void __iomem *registers;
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bool link_up;
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unsigned int msg_count;
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};
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#define bus_to_cdns(_bus) container_of(_bus, struct sdw_cdns, bus)
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/* Exported symbols */
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int sdw_cdns_probe(struct sdw_cdns *cdns);
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extern struct sdw_master_ops sdw_cdns_master_ops;
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irqreturn_t sdw_cdns_irq(int irq, void *dev_id);
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irqreturn_t sdw_cdns_thread(int irq, void *dev_id);
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int sdw_cdns_init(struct sdw_cdns *cdns);
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int sdw_cdns_enable_interrupt(struct sdw_cdns *cdns);
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#endif /* __SDW_CADENCE_H */
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