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torvalds
GitHub Repository: torvalds/linux
 Path: blob/master/sound/soc/intel/avs/cnl.c
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// SPDX-License-Identifier: GPL-2.0-only

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//

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// Copyright(c) 2021-2024 Intel Corporation

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//

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// Authors: Cezary Rojewski <[email protected]>

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//          Amadeusz Slawinski <[email protected]>

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//

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#include <sound/hdaudio_ext.h>

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#include "avs.h"

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#include "debug.h"

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#include "messages.h"

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#include "registers.h"

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static void avs_cnl_ipc_interrupt(struct avs_dev *adev)

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{

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	const struct avs_spec *spec = adev->spec;

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	u32 hipc_ack, hipc_rsp;

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	snd_hdac_adsp_updatel(adev, spec->hipc->ctl_offset,

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			      AVS_ADSP_HIPCCTL_DONE | AVS_ADSP_HIPCCTL_BUSY, 0);

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	hipc_ack = snd_hdac_adsp_readl(adev, spec->hipc->ack_offset);

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	hipc_rsp = snd_hdac_adsp_readl(adev, spec->hipc->rsp_offset);

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	/* DSP acked host's request. */

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	if (hipc_ack & spec->hipc->ack_done_mask) {

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		complete(&adev->ipc->done_completion);

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		/* Tell DSP it has our attention. */

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		snd_hdac_adsp_updatel(adev, spec->hipc->ack_offset, spec->hipc->ack_done_mask,

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				      spec->hipc->ack_done_mask);

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	}

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	/* DSP sent new response to process. */

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	if (hipc_rsp & spec->hipc->rsp_busy_mask) {

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		union avs_reply_msg msg;

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		u32 hipctda;

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		msg.primary = snd_hdac_adsp_readl(adev, CNL_ADSP_REG_HIPCTDR);

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		msg.ext.val = snd_hdac_adsp_readl(adev, CNL_ADSP_REG_HIPCTDD);

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		avs_dsp_process_response(adev, msg.val);

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		/* Tell DSP we accepted its message. */

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		snd_hdac_adsp_updatel(adev, CNL_ADSP_REG_HIPCTDR,

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				      CNL_ADSP_HIPCTDR_BUSY, CNL_ADSP_HIPCTDR_BUSY);

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		/* Ack this response. */

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		snd_hdac_adsp_updatel(adev, CNL_ADSP_REG_HIPCTDA,

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				      CNL_ADSP_HIPCTDA_DONE, CNL_ADSP_HIPCTDA_DONE);

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		/* HW might have been clock gated, give some time for change to propagate. */

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		snd_hdac_adsp_readl_poll(adev, CNL_ADSP_REG_HIPCTDA, hipctda,

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					 !(hipctda & CNL_ADSP_HIPCTDA_DONE), 10, 1000);

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	}

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	snd_hdac_adsp_updatel(adev, spec->hipc->ctl_offset,

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			      AVS_ADSP_HIPCCTL_DONE | AVS_ADSP_HIPCCTL_BUSY,

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			      AVS_ADSP_HIPCCTL_DONE | AVS_ADSP_HIPCCTL_BUSY);

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}

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irqreturn_t avs_cnl_dsp_interrupt(struct avs_dev *adev)

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{

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	u32 adspis = snd_hdac_adsp_readl(adev, AVS_ADSP_REG_ADSPIS);

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	irqreturn_t ret = IRQ_NONE;

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	if (adspis == UINT_MAX)

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		return ret;

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	if (adspis & AVS_ADSP_ADSPIS_IPC) {

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		avs_cnl_ipc_interrupt(adev);

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		ret = IRQ_HANDLED;

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	}

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	return ret;

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}

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const struct avs_dsp_ops avs_cnl_dsp_ops = {

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	.power = avs_dsp_core_power,

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	.reset = avs_dsp_core_reset,

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	.stall = avs_dsp_core_stall,

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	.dsp_interrupt = avs_cnl_dsp_interrupt,

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	.int_control = avs_dsp_interrupt_control,

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	.load_basefw = avs_hda_load_basefw,

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	.load_lib = avs_hda_load_library,

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	.transfer_mods = avs_hda_transfer_modules,

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	.log_buffer_offset = avs_skl_log_buffer_offset,

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	.log_buffer_status = avs_apl_log_buffer_status,

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	.coredump = avs_apl_coredump,

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	.d0ix_toggle = avs_apl_d0ix_toggle,

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	.set_d0ix = avs_apl_set_d0ix,

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	AVS_SET_ENABLE_LOGS_OP(apl)

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};

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