root/sound/soc/sof/intel/skl.c
// 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) 2018-2022 Intel Corporation
//

/*
 * Hardware interface for audio DSP on Skylake and Kabylake.
 */

#include <linux/delay.h>
#include <linux/device.h>
#include <linux/dma-mapping.h>
#include <linux/firmware.h>
#include <linux/fs.h>
#include <linux/interrupt.h>
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/pci.h>
#include <sound/hdaudio_ext.h>
#include <sound/pcm_params.h>
#include <sound/sof.h>
#include <sound/sof/ext_manifest4.h>

#include "../sof-priv.h"
#include "../ipc4-priv.h"
#include "../ops.h"
#include "hda.h"
#include "../sof-audio.h"

#define SRAM_MEMORY_WINDOW_BASE 0x8000

static const __maybe_unused struct snd_sof_debugfs_map skl_dsp_debugfs[] = {
        {"hda", HDA_DSP_HDA_BAR, 0, 0x4000},
        {"pp", HDA_DSP_PP_BAR,  0, 0x1000},
        {"dsp", HDA_DSP_BAR,  0, 0x10000},
};

static int skl_dsp_ipc_get_window_offset(struct snd_sof_dev *sdev, u32 id)
{
        return SRAM_MEMORY_WINDOW_BASE + (0x2000 * id);
}

static int skl_dsp_ipc_get_mailbox_offset(struct snd_sof_dev *sdev)
{
        return SRAM_MEMORY_WINDOW_BASE + 0x1000;
}

/* skylake ops */
struct snd_sof_dsp_ops sof_skl_ops;
EXPORT_SYMBOL_NS(sof_skl_ops, "SND_SOC_SOF_INTEL_HDA_COMMON");

int sof_skl_ops_init(struct snd_sof_dev *sdev)
{
        struct sof_ipc4_fw_data *ipc4_data;

        /* common defaults */
        memcpy(&sof_skl_ops, &sof_hda_common_ops, sizeof(struct snd_sof_dsp_ops));

        /* probe/remove/shutdown */
        sof_skl_ops.shutdown    = hda_dsp_shutdown;

        sdev->private = kzalloc_obj(*ipc4_data);
        if (!sdev->private)
                return -ENOMEM;

        ipc4_data = sdev->private;
        ipc4_data->manifest_fw_hdr_offset = SOF_MAN4_FW_HDR_OFFSET_CAVS_1_5;

        ipc4_data->mtrace_type = SOF_IPC4_MTRACE_INTEL_CAVS_1_5;

        sof_skl_ops.get_window_offset = skl_dsp_ipc_get_window_offset;
        sof_skl_ops.get_mailbox_offset = skl_dsp_ipc_get_mailbox_offset;

        /* doorbell */
        sof_skl_ops.irq_thread  = hda_dsp_ipc4_irq_thread;

        /* ipc */
        sof_skl_ops.send_msg    = hda_dsp_ipc4_send_msg;

        /* set DAI driver ops */
        hda_set_dai_drv_ops(sdev, &sof_skl_ops);

        /* debug */
        sof_skl_ops.debug_map   = skl_dsp_debugfs;
        sof_skl_ops.debug_map_count     = ARRAY_SIZE(skl_dsp_debugfs);
        sof_skl_ops.ipc_dump    = hda_ipc4_dump;

        /* firmware run */
        sof_skl_ops.run = hda_dsp_cl_boot_firmware_skl;

        /* pre/post fw run */
        sof_skl_ops.post_fw_run = hda_dsp_post_fw_run;

        return 0;
};
EXPORT_SYMBOL_NS(sof_skl_ops_init, "SND_SOC_SOF_INTEL_HDA_COMMON");

const struct sof_intel_dsp_desc skl_chip_info = {
        .cores_num = 2,
        .init_core_mask = 1,
        .host_managed_cores_mask = GENMASK(1, 0),
        .ipc_req = HDA_DSP_REG_HIPCI,
        .ipc_req_mask = HDA_DSP_REG_HIPCI_BUSY,
        .ipc_ack = HDA_DSP_REG_HIPCIE,
        .ipc_ack_mask = HDA_DSP_REG_HIPCIE_DONE,
        .ipc_ctl = HDA_DSP_REG_HIPCCTL,
        .rom_status_reg = HDA_DSP_SRAM_REG_ROM_STATUS_SKL,
        .rom_init_timeout       = 300,
        .check_ipc_irq  = hda_dsp_check_ipc_irq,
        .power_down_dsp = hda_power_down_dsp,
        .disable_interrupts = hda_dsp_disable_interrupts,
        .hw_ip_version = SOF_INTEL_CAVS_1_5,
        .platform = "skl",
};
EXPORT_SYMBOL_NS(skl_chip_info, "SND_SOC_SOF_INTEL_HDA_COMMON");