diff options
Diffstat (limited to 'sound/soc/sof/amd/pci-rmb.c')
| -rw-r--r-- | sound/soc/sof/amd/pci-rmb.c | 188 |
1 files changed, 188 insertions, 0 deletions
diff --git a/sound/soc/sof/amd/pci-rmb.c b/sound/soc/sof/amd/pci-rmb.c new file mode 100644 index 000000000..6fa060cab --- /dev/null +++ b/sound/soc/sof/amd/pci-rmb.c @@ -0,0 +1,188 @@ +// 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); |