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// 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 Advanced Micro Devices, Inc. All rights reserved.
//
// Authors: Ajit Kumar Pandey <AjitKumar.Pandey@amd.com>
/*.
* PCI interface for Rembrandt ACP device
*/
#include <linux/module.h>
#include <linux/pci.h>
#include <linux/platform_device.h>
#include <sound/sof.h>
#include <sound/soc-acpi.h>
#include "../ops.h"
#include "../sof-pci-dev.h"
#include "../../amd/mach-config.h"
#include "acp.h"
#include "acp-dsp-offset.h"
#define ACP6x_REG_START 0x1240000
#define ACP6x_REG_END 0x125C000
static struct platform_device *dmic_dev;
static struct platform_device *pdev;
static const struct resource rembrandt_res[] = {
{
.start = 0,
.end = ACP6x_REG_END - ACP6x_REG_START,
.name = "acp_mem",
.flags = IORESOURCE_MEM,
},
{
.start = 0,
.end = 0,
.name = "acp_dai_irq",
.flags = IORESOURCE_IRQ,
},
};
static const struct sof_amd_acp_desc rembrandt_chip_info = {
.rev = 6,
.host_bridge_id = HOST_BRIDGE_RMB,
.i2s_mode = 0x0a,
.pgfsm_base = ACP6X_PGFSM_BASE,
.ext_intr_stat = ACP6X_EXT_INTR_STAT,
.dsp_intr_base = ACP6X_DSP_SW_INTR_BASE,
.sram_pte_offset = ACP6X_SRAM_PTE_OFFSET,
.i2s_pin_config_offset = ACP6X_I2S_PIN_CONFIG,
.hw_semaphore_offset = ACP6X_AXI2DAGB_SEM_0,
.fusion_dsp_offset = ACP6X_DSP_FUSION_RUNSTALL,
};
static const struct sof_dev_desc rembrandt_desc = {
.machines = snd_soc_acpi_amd_rmb_sof_machines,
.resindex_lpe_base = 0,
.resindex_pcicfg_base = -1,
.resindex_imr_base = -1,
.irqindex_host_ipc = -1,
.chip_info = &rembrandt_chip_info,
.ipc_supported_mask = BIT(SOF_IPC),
.ipc_default = SOF_IPC,
.default_fw_path = {
[SOF_IPC] = "amd/sof",
},
.default_tplg_path = {
[SOF_IPC] = "amd/sof-tplg",
},
.default_fw_filename = {
[SOF_IPC] = "sof-rmb.ri",
},
.nocodec_tplg_filename = "sof-acp.tplg",
.ops = &sof_rembrandt_ops,
.ops_init = sof_rembrandt_ops_init,
};
static int acp_pci_rmb_probe(struct pci_dev *pci, const struct pci_device_id *pci_id)
{
struct platform_device_info pdevinfo;
struct device *dev = &pci->dev;
const struct resource *res_i2s;
struct resource *res;
unsigned int flag, i, addr;
int ret;
if (pci->revision != ACP_RMB_PCI_ID)
return -ENODEV;
flag = snd_amd_acp_find_config(pci);
if (flag != FLAG_AMD_SOF && flag != FLAG_AMD_SOF_ONLY_DMIC)
return -ENODEV;
ret = sof_pci_probe(pci, pci_id);
if (ret != 0)
return ret;
dmic_dev = platform_device_register_data(dev, "dmic-codec", PLATFORM_DEVID_NONE, NULL, 0);
if (IS_ERR(dmic_dev)) {
dev_err(dev, "failed to create DMIC device\n");
sof_pci_remove(pci);
return PTR_ERR(dmic_dev);
}
/* Register platform device only if flag set to FLAG_AMD_SOF_ONLY_DMIC */
if (flag != FLAG_AMD_SOF_ONLY_DMIC)
return 0;
addr = pci_resource_start(pci, 0);
res = devm_kzalloc(&pci->dev, sizeof(struct resource) * ARRAY_SIZE(rembrandt_res),
GFP_KERNEL);
if (!res) {
platform_device_unregister(dmic_dev);
sof_pci_remove(pci);
return -ENOMEM;
}
res_i2s = rembrandt_res;
for (i = 0; i < ARRAY_SIZE(rembrandt_res); i++, res_i2s++) {
res[i].name = res_i2s->name;
res[i].flags = res_i2s->flags;
res[i].start = addr + res_i2s->start;
res[i].end = addr + res_i2s->end;
if (res_i2s->flags == IORESOURCE_IRQ) {
res[i].start = pci->irq;
res[i].end = res[i].start;
}
}
memset(&pdevinfo, 0, sizeof(pdevinfo));
/*
* We have common PCI driver probe for ACP device but we have to support I2S without SOF
* for some distributions. Register platform device that will be used to support non dsp
* ACP's audio ends points on some machines.
*/
pdevinfo.name = "acp_asoc_rembrandt";
pdevinfo.id = 0;
pdevinfo.parent = &pci->dev;
pdevinfo.num_res = ARRAY_SIZE(rembrandt_res);
pdevinfo.res = &res[0];
pdev = platform_device_register_full(&pdevinfo);
if (IS_ERR(pdev)) {
dev_err(&pci->dev, "cannot register %s device\n", pdevinfo.name);
platform_device_unregister(dmic_dev);
sof_pci_remove(pci);
ret = PTR_ERR(pdev);
}
return ret;
};
static void acp_pci_rmb_remove(struct pci_dev *pci)
{
if (dmic_dev)
platform_device_unregister(dmic_dev);
if (pdev)
platform_device_unregister(pdev);
sof_pci_remove(pci);
}
/* PCI IDs */
static const struct pci_device_id rmb_pci_ids[] = {
{ PCI_DEVICE(PCI_VENDOR_ID_AMD, ACP_PCI_DEV_ID),
.driver_data = (unsigned long)&rembrandt_desc},
{ 0, }
};
MODULE_DEVICE_TABLE(pci, rmb_pci_ids);
/* pci_driver definition */
static struct pci_driver snd_sof_pci_amd_rmb_driver = {
.name = KBUILD_MODNAME,
.id_table = rmb_pci_ids,
.probe = acp_pci_rmb_probe,
.remove = acp_pci_rmb_remove,
};
module_pci_driver(snd_sof_pci_amd_rmb_driver);
MODULE_LICENSE("Dual BSD/GPL");
MODULE_IMPORT_NS(SND_SOC_SOF_AMD_COMMON);
MODULE_IMPORT_NS(SND_SOC_SOF_PCI_DEV);
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