ASoC: SOF: add ipc4_fw_reg header file

Ipc4_fw_reg defines the content of memory window 0 shared by fw.
Host driver can get fw information by data structure defined in
this file.

Signed-off-by: Rander Wang <[e-mail]>
Reviewed-by: Pierre-Louis Bossart <[e-mail]>
Reviewed-by: Ranjani Sridharan <[e-mail]>
Reviewed-by: Bard Liao <[e-mail]>
Signed-off-by: Peter Ujfalusi <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Mark Brown <[e-mail]>

sound/soc/sof/ipc4-fw-reg.h

···
+/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause) */
+/*
+ * This file is provided under a dual BSD/GPLv2 license.  When using or
+ * redistributing this file, you may do so under either license.
+ *
+ * Copyright(c) 2022 Intel Corporation. All rights reserved.
+ */
+
+#ifndef __IPC4_FW_REG_H__
+#define __IPC4_FW_REG_H__
+
+#define SOF_IPC4_INVALID_STREAM_POSITION	ULLONG_MAX
+
+/**
+ * struct sof_ipc4_pipeline_registers - Pipeline start and end information in fw
+ * @stream_start_offset: Stream start offset (LPIB) reported by mixin
+ * module allocated on pipeline attached to Host Output Gateway when
+ * first data is being mixed to mixout module. When data is not mixed
+ * (right after creation/after reset) value "(u64)-1" is reported
+ * @stream_end_offset: Stream end offset (LPIB) reported by mixin
+ * module allocated on pipeline attached to Host Output Gateway
+ * during transition from RUNNING to PAUSED. When data is not mixed
+ * (right after creation or after reset) value "(u64)-1" is reported.
+ * When first data is mixed then value "0"is reported.
+ */
+struct sof_ipc4_pipeline_registers {
+	u64 stream_start_offset;
+	u64 stream_end_offset;
+} __packed __aligned(4);
+
+#define SOF_IPC4_PV_MAX_SUPPORTED_CHANNELS 8
+
+/**
+ * struct sof_ipc4_peak_volume_regs - Volume information in fw
+ * @peak_meter: Peak volume value in fw
+ * @current_volume: Current volume value in fw
+ * @target_volume: Target volume value in fw
+ */
+struct sof_ipc4_peak_volume_regs {
+	u32 peak_meter[SOF_IPC4_PV_MAX_SUPPORTED_CHANNELS];
+	u32 current_volume[SOF_IPC4_PV_MAX_SUPPORTED_CHANNELS];
+	u32 target_volume[SOF_IPC4_PV_MAX_SUPPORTED_CHANNELS];
+} __packed __aligned(4);
+
+/**
+ * struct sof_ipc4_llp_reading - Llp information in fw
+ * @llp_l: Lower part of 64-bit LLP
+ * @llp_u: Upper part of 64-bit LLP
+ * @wclk_l: Lower part of 64-bit Wallclock
+ * @wclk_u: Upper part of 64-bit Wallclock
+ */
+struct sof_ipc4_llp_reading {
+	u32 llp_l;
+	u32 llp_u;
+	u32 wclk_l;
+	u32 wclk_u;
+} __packed __aligned(4);
+
+/**
+ * struct of sof_ipc4_llp_reading_extended - Extended llp info
+ * @llp_reading: Llp information in memory window
+ * @tpd_low: Total processed data (low part)
+ * @tpd_high: Total processed data (high part)
+ */
+struct sof_ipc4_llp_reading_extended {
+	struct sof_ipc4_llp_reading llp_reading;
+	u32 tpd_low;
+	u32 tpd_high;
+} __packed __aligned(4);
+
+/**
+ * struct sof_ipc4_llp_reading_slot - Llp slot information in memory window
+ * @node_id: Dai gateway node id
+ * @reading: Llp information in memory window
+ */
+struct sof_ipc4_llp_reading_slot {
+	u32 node_id;
+	struct sof_ipc4_llp_reading reading;
+} __packed __aligned(4);
+
+/* ROM information */
+#define SOF_IPC4_FW_FUSE_VALUE_MASK		GENMASK(7, 0)
+#define SOF_IPC4_FW_LOAD_METHOD_MASK		BIT(8)
+#define SOF_IPC4_FW_DOWNLINK_IPC_USE_DMA_MASK	BIT(9)
+#define SOF_IPC4_FW_LOAD_METHOD_REV_MASK	GENMASK(11, 10)
+#define SOF_IPC4_FW_REVISION_MIN_MASK		GENMASK(15, 12)
+#define SOF_IPC4_FW_REVISION_MAJ_MASK		GENMASK(19, 16)
+#define SOF_IPC4_FW_VERSION_MIN_MASK		GENMASK(23, 20)
+#define SOF_IPC4_FW_VERSION_MAJ_MASK		GENMASK(27, 24)
+
+/* Number of dsp core supported in FW Regs. */
+#define SOF_IPC4_MAX_SUPPORTED_ADSP_CORES	8
+
+/* Number of host pipeline registers slots in FW Regs. */
+#define SOF_IPC4_MAX_PIPELINE_REG_SLOTS		16
+
+/* Number of PeakVol registers slots in FW Regs. */
+#define SOF_IPC4_MAX_PEAK_VOL_REG_SLOTS		16
+
+/* Number of GPDMA LLP Reading slots in FW Regs. */
+#define SOF_IPC4_MAX_LLP_GPDMA_READING_SLOTS	24
+
+/* Number of Aggregated SNDW Reading slots in FW Regs. */
+#define SOF_IPC4_MAX_LLP_SNDW_READING_SLOTS	15
+
+/* Current ABI version of the Fw registers layout. */
+#define SOF_IPC4_FW_REGS_ABI_VER		1
+
+/**
+ * struct sof_ipc4_fw_registers - FW Registers exposes additional
+ * DSP / FW state information to the driver
+ * @fw_status: Current ROM / FW status
+ * @lec: Last ROM / FW error code
+ * @fps: Current DSP clock status
+ * @lnec: Last Native Error Code(from external library)
+ * @ltr: Copy of LTRC HW register value(FW only)
+ * @rsvd0: Reserved0
+ * @rom_info: ROM info
+ * @abi_ver: Version of the layout, set to the current FW_REGS_ABI_VER
+ * @slave_core_sts: Slave core states
+ * @rsvd2: Reserved2
+ * @pipeline_regs: State of pipelines attached to host output  gateways
+ * @peak_vol_regs: State of PeakVol instances indexed by the PeakVol's instance_id
+ * @llp_gpdma_reading_slots: LLP Readings for single link gateways
+ * @llp_sndw_reading_slots: SNDW aggregated link gateways
+ * @llp_evad_reading_slot: LLP Readings for EVAD gateway
+ */
+struct sof_ipc4_fw_registers {
+	u32 fw_status;
+	u32 lec;
+	u32 fps;
+	u32 lnec;
+	u32 ltr;
+	u32 rsvd0;
+	u32 rom_info;
+	u32 abi_ver;
+	u8 slave_core_sts[SOF_IPC4_MAX_SUPPORTED_ADSP_CORES];
+	u32 rsvd2[6];
+
+	struct sof_ipc4_pipeline_registers
+		pipeline_regs[SOF_IPC4_MAX_PIPELINE_REG_SLOTS];
+
+	struct sof_ipc4_peak_volume_regs
+		peak_vol_regs[SOF_IPC4_MAX_PEAK_VOL_REG_SLOTS];
+
+	struct sof_ipc4_llp_reading_slot
+		llp_gpdma_reading_slots[SOF_IPC4_MAX_LLP_GPDMA_READING_SLOTS];
+
+	struct sof_ipc4_llp_reading_slot
+		llp_sndw_reading_slots[SOF_IPC4_MAX_LLP_SNDW_READING_SLOTS];
+
+	struct sof_ipc4_llp_reading_slot llp_evad_reading_slot;
+} __packed __aligned(4);
+
+#endif