1 // SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause) 2 // 3 // This file is provided under a dual BSD/GPLv2 license. When using or 4 // redistributing this file, you may do so under either license. 5 // 6 // Copyright(c) 2022 Advanced Micro Devices, Inc. All rights reserved. 7 // 8 // Authors: Ajit Kumar Pandey <AjitKumar.Pandey@amd.com> 9 10 /*. 11 * PCI interface for Rembrandt ACP device 12 */ 13 14 #include <linux/module.h> 15 #include <linux/pci.h> 16 #include <linux/platform_device.h> 17 #include <sound/sof.h> 18 #include <sound/soc-acpi.h> 19 20 #include "../ops.h" 21 #include "../sof-pci-dev.h" 22 #include "../../amd/mach-config.h" 23 #include "acp.h" 24 #include "acp-dsp-offset.h" 25 26 #define ACP6x_REG_START 0x1240000 27 #define ACP6x_REG_END 0x125C000 28 29 static struct platform_device *dmic_dev; 30 static struct platform_device *pdev; 31 32 static const struct resource rembrandt_res[] = { 33 { 34 .start = 0, 35 .end = ACP6x_REG_END - ACP6x_REG_START, 36 .name = "acp_mem", 37 .flags = IORESOURCE_MEM, 38 }, 39 { 40 .start = 0, 41 .end = 0, 42 .name = "acp_dai_irq", 43 .flags = IORESOURCE_IRQ, 44 }, 45 }; 46 47 static const struct sof_amd_acp_desc rembrandt_chip_info = { 48 .rev = 6, 49 .host_bridge_id = HOST_BRIDGE_RMB, 50 .i2s_mode = 0x0a, 51 .pgfsm_base = ACP6X_PGFSM_BASE, 52 .ext_intr_stat = ACP6X_EXT_INTR_STAT, 53 .dsp_intr_base = ACP6X_DSP_SW_INTR_BASE, 54 .sram_pte_offset = ACP6X_SRAM_PTE_OFFSET, 55 .i2s_pin_config_offset = ACP6X_I2S_PIN_CONFIG, 56 .hw_semaphore_offset = ACP6X_AXI2DAGB_SEM_0, 57 .acp_clkmux_sel = ACP6X_CLKMUX_SEL, 58 .fusion_dsp_offset = ACP6X_DSP_FUSION_RUNSTALL, 59 }; 60 61 static const struct sof_dev_desc rembrandt_desc = { 62 .machines = snd_soc_acpi_amd_rmb_sof_machines, 63 .resindex_lpe_base = 0, 64 .resindex_pcicfg_base = -1, 65 .resindex_imr_base = -1, 66 .irqindex_host_ipc = -1, 67 .chip_info = &rembrandt_chip_info, 68 .ipc_supported_mask = BIT(SOF_IPC), 69 .ipc_default = SOF_IPC, 70 .default_fw_path = { 71 [SOF_IPC] = "amd/sof", 72 }, 73 .default_tplg_path = { 74 [SOF_IPC] = "amd/sof-tplg", 75 }, 76 .default_fw_filename = { 77 [SOF_IPC] = "sof-rmb.ri", 78 }, 79 .nocodec_tplg_filename = "sof-acp.tplg", 80 .ops = &sof_rembrandt_ops, 81 .ops_init = sof_rembrandt_ops_init, 82 }; 83 84 static int acp_pci_rmb_probe(struct pci_dev *pci, const struct pci_device_id *pci_id) 85 { 86 struct platform_device_info pdevinfo; 87 struct device *dev = &pci->dev; 88 const struct resource *res_i2s; 89 struct resource *res; 90 unsigned int flag, i, addr; 91 int ret; 92 93 flag = snd_amd_acp_find_config(pci); 94 if (flag != FLAG_AMD_SOF && flag != FLAG_AMD_SOF_ONLY_DMIC) 95 return -ENODEV; 96 97 ret = sof_pci_probe(pci, pci_id); 98 if (ret != 0) 99 return ret; 100 101 dmic_dev = platform_device_register_data(dev, "dmic-codec", PLATFORM_DEVID_NONE, NULL, 0); 102 if (IS_ERR(dmic_dev)) { 103 dev_err(dev, "failed to create DMIC device\n"); 104 sof_pci_remove(pci); 105 return PTR_ERR(dmic_dev); 106 } 107 108 /* Register platform device only if flag set to FLAG_AMD_SOF_ONLY_DMIC */ 109 if (flag != FLAG_AMD_SOF_ONLY_DMIC) 110 return 0; 111 112 addr = pci_resource_start(pci, 0); 113 res = devm_kzalloc(&pci->dev, sizeof(struct resource) * ARRAY_SIZE(rembrandt_res), 114 GFP_KERNEL); 115 if (!res) { 116 platform_device_unregister(dmic_dev); 117 sof_pci_remove(pci); 118 return -ENOMEM; 119 } 120 121 res_i2s = rembrandt_res; 122 for (i = 0; i < ARRAY_SIZE(rembrandt_res); i++, res_i2s++) { 123 res[i].name = res_i2s->name; 124 res[i].flags = res_i2s->flags; 125 res[i].start = addr + res_i2s->start; 126 res[i].end = addr + res_i2s->end; 127 if (res_i2s->flags == IORESOURCE_IRQ) { 128 res[i].start = pci->irq; 129 res[i].end = res[i].start; 130 } 131 } 132 133 memset(&pdevinfo, 0, sizeof(pdevinfo)); 134 135 /* 136 * We have common PCI driver probe for ACP device but we have to support I2S without SOF 137 * for some distributions. Register platform device that will be used to support non dsp 138 * ACP's audio ends points on some machines. 139 */ 140 pdevinfo.name = "acp_asoc_rembrandt"; 141 pdevinfo.id = 0; 142 pdevinfo.parent = &pci->dev; 143 pdevinfo.num_res = ARRAY_SIZE(rembrandt_res); 144 pdevinfo.res = &res[0]; 145 146 pdev = platform_device_register_full(&pdevinfo); 147 if (IS_ERR(pdev)) { 148 dev_err(&pci->dev, "cannot register %s device\n", pdevinfo.name); 149 platform_device_unregister(dmic_dev); 150 sof_pci_remove(pci); 151 ret = PTR_ERR(pdev); 152 } 153 154 return ret; 155 }; 156 157 static void acp_pci_rmb_remove(struct pci_dev *pci) 158 { 159 if (dmic_dev) 160 platform_device_unregister(dmic_dev); 161 if (pdev) 162 platform_device_unregister(pdev); 163 164 sof_pci_remove(pci); 165 } 166 167 /* PCI IDs */ 168 static const struct pci_device_id rmb_pci_ids[] = { 169 { PCI_DEVICE(PCI_VENDOR_ID_AMD, ACP_PCI_DEV_ID), 170 .driver_data = (unsigned long)&rembrandt_desc}, 171 { 0, } 172 }; 173 MODULE_DEVICE_TABLE(pci, rmb_pci_ids); 174 175 /* pci_driver definition */ 176 static struct pci_driver snd_sof_pci_amd_rmb_driver = { 177 .name = KBUILD_MODNAME, 178 .id_table = rmb_pci_ids, 179 .probe = acp_pci_rmb_probe, 180 .remove = acp_pci_rmb_remove, 181 }; 182 module_pci_driver(snd_sof_pci_amd_rmb_driver); 183 184 MODULE_LICENSE("Dual BSD/GPL"); 185 MODULE_IMPORT_NS(SND_SOC_SOF_AMD_COMMON); 186 MODULE_IMPORT_NS(SND_SOC_SOF_PCI_DEV); 187