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Each SoundWire peripheral can be programmed from the manager side either with a regular command FIFO, or with the HDaudio CORB/RIRB DMA-based mechanism. The mapping between SoundWire peripheral and SDI address is handled with the LSDIID register. This mapping only works of course if each peripheral has a unique address across all links. This has already been enforced in previous Intel contributions allowing for an IDA-based solution for the device number allocation. The checks on the dev_num are handled at the SoundWire level, but the locking is handled at the hda-mlink level. Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Reviewed-by: Rander Wang <rander.wang@intel.com> Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com> Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com> Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com> Reviewed-by: Takashi Iwai <tiwai@suse.de> Link: https://lore.kernel.org/r/20230404104127.5629-16-peter.ujfalusi@linux.intel.com Signed-off-by: Mark Brown <broonie@kernel.org>
145 lines
4.7 KiB
C
145 lines
4.7 KiB
C
/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause) */
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/*
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* This file is provided under a dual BSD/GPLv2 license. When using or
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* redistributing this file, you may do so under either license.
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*
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* Copyright(c) 2022-2023 Intel Corporation. All rights reserved.
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*/
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struct hdac_bus;
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#if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA_MLINK)
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int hda_bus_ml_init(struct hdac_bus *bus);
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void hda_bus_ml_free(struct hdac_bus *bus);
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int hdac_bus_eml_get_count(struct hdac_bus *bus, bool alt, int elid);
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void hdac_bus_eml_enable_interrupt(struct hdac_bus *bus, bool alt, int elid, bool enable);
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bool hdac_bus_eml_check_interrupt(struct hdac_bus *bus, bool alt, int elid);
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int hdac_bus_eml_set_syncprd_unlocked(struct hdac_bus *bus, bool alt, int elid, u32 syncprd);
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int hdac_bus_eml_sdw_set_syncprd_unlocked(struct hdac_bus *bus, u32 syncprd);
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int hdac_bus_eml_wait_syncpu_unlocked(struct hdac_bus *bus, bool alt, int elid);
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int hdac_bus_eml_sdw_wait_syncpu_unlocked(struct hdac_bus *bus);
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void hdac_bus_eml_sync_arm_unlocked(struct hdac_bus *bus, bool alt, int elid, int sublink);
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void hdac_bus_eml_sdw_sync_arm_unlocked(struct hdac_bus *bus, int sublink);
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int hdac_bus_eml_sync_go_unlocked(struct hdac_bus *bus, bool alt, int elid);
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int hdac_bus_eml_sdw_sync_go_unlocked(struct hdac_bus *bus);
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bool hdac_bus_eml_check_cmdsync_unlocked(struct hdac_bus *bus, bool alt, int elid);
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bool hdac_bus_eml_sdw_check_cmdsync_unlocked(struct hdac_bus *bus);
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int hdac_bus_eml_power_up(struct hdac_bus *bus, bool alt, int elid, int sublink);
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int hdac_bus_eml_power_up_unlocked(struct hdac_bus *bus, bool alt, int elid, int sublink);
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int hdac_bus_eml_power_down(struct hdac_bus *bus, bool alt, int elid, int sublink);
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int hdac_bus_eml_power_down_unlocked(struct hdac_bus *bus, bool alt, int elid, int sublink);
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int hdac_bus_eml_sdw_power_up_unlocked(struct hdac_bus *bus, int sublink);
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int hdac_bus_eml_sdw_power_down_unlocked(struct hdac_bus *bus, int sublink);
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int hdac_bus_eml_sdw_set_lsdiid(struct hdac_bus *bus, int sublink, int dev_num);
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void hda_bus_ml_put_all(struct hdac_bus *bus);
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void hda_bus_ml_reset_losidv(struct hdac_bus *bus);
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int hda_bus_ml_resume(struct hdac_bus *bus);
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int hda_bus_ml_suspend(struct hdac_bus *bus);
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#else
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static inline int
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hda_bus_ml_init(struct hdac_bus *bus) { return 0; }
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static inline void hda_bus_ml_free(struct hdac_bus *bus) { }
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static inline int
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hdac_bus_eml_get_count(struct hdac_bus *bus, bool alt, int elid) { return 0; }
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static inline void
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hdac_bus_eml_enable_interrupt(struct hdac_bus *bus, bool alt, int elid, bool enable) { }
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static inline bool
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hdac_bus_eml_check_interrupt(struct hdac_bus *bus, bool alt, int elid) { return false; }
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static inline int
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hdac_bus_eml_set_syncprd_unlocked(struct hdac_bus *bus, bool alt, int elid, u32 syncprd)
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{
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return 0;
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}
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static inline int
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hdac_bus_eml_sdw_set_syncprd_unlocked(struct hdac_bus *bus, u32 syncprd)
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{
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return 0;
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}
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static inline int
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hdac_bus_eml_wait_syncpu_unlocked(struct hdac_bus *bus, bool alt, int elid)
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{
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return 0;
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}
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static inline int
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hdac_bus_eml_sdw_wait_syncpu_unlocked(struct hdac_bus *bus) { return 0; }
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static inline void
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hdac_bus_eml_sync_arm_unlocked(struct hdac_bus *bus, bool alt, int elid, int sublink) { }
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static inline void
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hdac_bus_eml_sdw_sync_arm_unlocked(struct hdac_bus *bus, int sublink) { }
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static inline int
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hdac_bus_eml_sync_go_unlocked(struct hdac_bus *bus, bool alt, int elid) { return 0; }
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static inline int
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hdac_bus_eml_sdw_sync_go_unlocked(struct hdac_bus *bus) { return 0; }
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static inline bool
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hdac_bus_eml_check_cmdsync_unlocked(struct hdac_bus *bus, bool alt, int elid) { return false; }
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static inline bool
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hdac_bus_eml_sdw_check_cmdsync_unlocked(struct hdac_bus *bus) { return false; }
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static inline int
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hdac_bus_eml_power_up(struct hdac_bus *bus, bool alt, int elid, int sublink)
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{
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return 0;
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}
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static inline int
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hdac_bus_eml_power_up_unlocked(struct hdac_bus *bus, bool alt, int elid, int sublink)
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{
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return 0;
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}
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static inline int
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hdac_bus_eml_power_down(struct hdac_bus *bus, bool alt, int elid, int sublink)
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{
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return 0;
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}
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static inline int
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hdac_bus_eml_power_down_unlocked(struct hdac_bus *bus, bool alt, int elid, int sublink)
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{
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return 0;
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}
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static inline int
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hdac_bus_eml_sdw_power_up_unlocked(struct hdac_bus *bus, int sublink) { return 0; }
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static inline int
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hdac_bus_eml_sdw_power_down_unlocked(struct hdac_bus *bus, int sublink) { return 0; }
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static inline int
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hdac_bus_eml_sdw_set_lsdiid(struct hdac_bus *bus, int sublink, int dev_num) { return 0; }
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static inline void hda_bus_ml_put_all(struct hdac_bus *bus) { }
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static inline void hda_bus_ml_reset_losidv(struct hdac_bus *bus) { }
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static inline int hda_bus_ml_resume(struct hdac_bus *bus) { return 0; }
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static inline int hda_bus_ml_suspend(struct hdac_bus *bus) { return 0; }
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#endif /* CONFIG_SND_SOC_SOF_HDA */
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