sound/soc/sof/intel/lnl.c

Source file repositories/reference/linux-study-clean/sound/soc/sof/intel/lnl.c

File Facts

System
Linux kernel
Corpus path
sound/soc/sof/intel/lnl.c
Extension
.c
Size
4647 bytes
Lines
181
Domain
Driver Families
Bucket
sound/soc
Inferred role
Driver Families: exported/initcall integration point
Status
integration implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

Dependency Surface

Detected Declarations

Annotated Snippet

if (!sof_debug_check_flag(SOF_DBG_IGNORE_D3_PERSISTENT)) {
			hda->imrboot_supported = true;
			debugfs_create_bool("skip_imr_boot",
					    0644, sdev->debugfs_root,
					    &hda->skip_imr_boot);
		}
	}

	return 0;
}

int sof_lnl_set_ops(struct snd_sof_dev *sdev, struct snd_sof_dsp_ops *dsp_ops)
{
	int ret;

	ret = sof_mtl_set_ops(sdev, dsp_ops);
	if (ret)
		return ret;

	/* probe/remove */
	if (!sdev->dspless_mode_selected) {
		dsp_ops->probe = lnl_hda_dsp_probe;
		dsp_ops->remove = lnl_hda_dsp_remove;
	}

	/* post fw run */
	dsp_ops->post_fw_run = lnl_dsp_post_fw_run;

	/* PM */
	if (!sdev->dspless_mode_selected) {
		dsp_ops->resume = lnl_hda_dsp_resume;
		dsp_ops->runtime_resume = lnl_hda_dsp_runtime_resume;
	}

	return 0;
}
EXPORT_SYMBOL_NS(sof_lnl_set_ops, "SND_SOC_SOF_INTEL_LNL");

/* Check if an SDW IRQ occurred */
bool lnl_dsp_check_sdw_irq(struct snd_sof_dev *sdev)
{
	struct hdac_bus *bus = sof_to_bus(sdev);

	return hdac_bus_eml_check_interrupt(bus, true,  AZX_REG_ML_LEPTR_ID_SDW);
}
EXPORT_SYMBOL_NS(lnl_dsp_check_sdw_irq, "SND_SOC_SOF_INTEL_LNL");

int lnl_dsp_disable_interrupts(struct snd_sof_dev *sdev)
{
	mtl_disable_ipc_interrupts(sdev);
	return mtl_enable_interrupts(sdev, false);
}
EXPORT_SYMBOL_NS(lnl_dsp_disable_interrupts, "SND_SOC_SOF_INTEL_LNL");

bool lnl_sdw_check_wakeen_irq(struct snd_sof_dev *sdev)
{
	struct hdac_bus *bus = sof_to_bus(sdev);
	u16 wake_sts;

	/*
	 * we need to use the global HDaudio WAKEEN/STS to be able to
	 * detect wakes in low-power modes. The link-specific information
	 * is handled in the process_wakeen() helper, this helper only
	 * detects a SoundWire wake without identifying the link.
	 */
	wake_sts = snd_hdac_chip_readw(bus, STATESTS);

	/* filter out the range of SDIs that can be set for SoundWire */
	return wake_sts & GENMASK(SDW_MAX_DEVICES, SDW_INTEL_DEV_NUM_IDA_MIN);
}
EXPORT_SYMBOL_NS(lnl_sdw_check_wakeen_irq, "SND_SOC_SOF_INTEL_LNL");

const struct sof_intel_dsp_desc lnl_chip_info = {
	.cores_num = 5,
	.init_core_mask = BIT(0),
	.host_managed_cores_mask = BIT(0),
	.ipc_req = MTL_DSP_REG_HFIPCXIDR,
	.ipc_req_mask = MTL_DSP_REG_HFIPCXIDR_BUSY,
	.ipc_ack = MTL_DSP_REG_HFIPCXIDA,
	.ipc_ack_mask = MTL_DSP_REG_HFIPCXIDA_DONE,
	.ipc_ctl = MTL_DSP_REG_HFIPCXCTL,
	.rom_status_reg = LNL_DSP_REG_HFDSC,
	.rom_init_timeout = 300,
	.ssp_count = MTL_SSP_COUNT,
	.d0i3_offset = MTL_HDA_VS_D0I3C,
	.read_sdw_lcount =  hda_sdw_check_lcount_ext,
	.check_sdw_irq = lnl_dsp_check_sdw_irq,
	.check_sdw_wakeen_irq = lnl_sdw_check_wakeen_irq,
	.sdw_process_wakeen = hda_sdw_process_wakeen_common,
	.check_ipc_irq = mtl_dsp_check_ipc_irq,

Annotation

Implementation Notes