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) 2018 Intel Corporation. All rights reserved. 7// 8// Author: Liam Girdwood <liam.r.girdwood@linux.intel.com> 9// 10 11#include <linux/acpi.h> 12#include <linux/firmware.h> 13#include <linux/module.h> 14#include <linux/pm_runtime.h> 15#include <sound/soc-acpi.h> 16#include <sound/soc-acpi-intel-match.h> 17#include <sound/sof.h> 18#include "../intel/common/soc-intel-quirks.h" 19#include "ops.h" 20 21/* platform specific devices */ 22#include "intel/shim.h" 23 24static char *fw_path; 25module_param(fw_path, charp, 0444); 26MODULE_PARM_DESC(fw_path, "alternate path for SOF firmware."); 27 28static char *tplg_path; 29module_param(tplg_path, charp, 0444); 30MODULE_PARM_DESC(tplg_path, "alternate path for SOF topology."); 31 32static int sof_acpi_debug; 33module_param_named(sof_acpi_debug, sof_acpi_debug, int, 0444); 34MODULE_PARM_DESC(sof_acpi_debug, "SOF ACPI debug options (0x0 all off)"); 35 36#define SOF_ACPI_DISABLE_PM_RUNTIME BIT(0) 37 38#if IS_ENABLED(CONFIG_ACPI) && IS_ENABLED(CONFIG_SND_SOC_SOF_BROADWELL) 39static const struct sof_dev_desc sof_acpi_broadwell_desc = { 40 .machines = snd_soc_acpi_intel_broadwell_machines, 41 .resindex_lpe_base = 0, 42 .resindex_pcicfg_base = 1, 43 .resindex_imr_base = -1, 44 .irqindex_host_ipc = 0, 45 .chip_info = &bdw_chip_info, 46 .default_fw_path = "intel/sof", 47 .default_tplg_path = "intel/sof-tplg", 48 .default_fw_filename = "sof-bdw.ri", 49 .nocodec_tplg_filename = "sof-bdw-nocodec.tplg", 50 .ops = &sof_bdw_ops, 51}; 52#endif 53 54#if IS_ENABLED(CONFIG_ACPI) && IS_ENABLED(CONFIG_SND_SOC_SOF_BAYTRAIL) 55 56/* BYTCR uses different IRQ index */ 57static const struct sof_dev_desc sof_acpi_baytrailcr_desc = { 58 .machines = snd_soc_acpi_intel_baytrail_machines, 59 .resindex_lpe_base = 0, 60 .resindex_pcicfg_base = 1, 61 .resindex_imr_base = 2, 62 .irqindex_host_ipc = 0, 63 .chip_info = &byt_chip_info, 64 .default_fw_path = "intel/sof", 65 .default_tplg_path = "intel/sof-tplg", 66 .default_fw_filename = "sof-byt.ri", 67 .nocodec_tplg_filename = "sof-byt-nocodec.tplg", 68 .ops = &sof_byt_ops, 69}; 70 71static const struct sof_dev_desc sof_acpi_baytrail_desc = { 72 .machines = snd_soc_acpi_intel_baytrail_machines, 73 .resindex_lpe_base = 0, 74 .resindex_pcicfg_base = 1, 75 .resindex_imr_base = 2, 76 .irqindex_host_ipc = 5, 77 .chip_info = &byt_chip_info, 78 .default_fw_path = "intel/sof", 79 .default_tplg_path = "intel/sof-tplg", 80 .default_fw_filename = "sof-byt.ri", 81 .nocodec_tplg_filename = "sof-byt-nocodec.tplg", 82 .ops = &sof_byt_ops, 83}; 84 85static const struct sof_dev_desc sof_acpi_cherrytrail_desc = { 86 .machines = snd_soc_acpi_intel_cherrytrail_machines, 87 .resindex_lpe_base = 0, 88 .resindex_pcicfg_base = 1, 89 .resindex_imr_base = 2, 90 .irqindex_host_ipc = 5, 91 .chip_info = &cht_chip_info, 92 .default_fw_path = "intel/sof", 93 .default_tplg_path = "intel/sof-tplg", 94 .default_fw_filename = "sof-cht.ri", 95 .nocodec_tplg_filename = "sof-cht-nocodec.tplg", 96 .ops = &sof_cht_ops, 97}; 98 99#endif 100 101static const struct dev_pm_ops sof_acpi_pm = { 102 SET_SYSTEM_SLEEP_PM_OPS(snd_sof_suspend, snd_sof_resume) 103 SET_RUNTIME_PM_OPS(snd_sof_runtime_suspend, snd_sof_runtime_resume, 104 snd_sof_runtime_idle) 105}; 106 107static void sof_acpi_probe_complete(struct device *dev) 108{ 109 dev_dbg(dev, "Completing SOF ACPI probe"); 110 111 if (sof_acpi_debug & SOF_ACPI_DISABLE_PM_RUNTIME) 112 return; 113 114 /* allow runtime_pm */ 115 pm_runtime_set_autosuspend_delay(dev, SND_SOF_SUSPEND_DELAY_MS); 116 pm_runtime_use_autosuspend(dev); 117 pm_runtime_enable(dev); 118} 119 120static int sof_acpi_probe(struct platform_device *pdev) 121{ 122 struct device *dev = &pdev->dev; 123 const struct sof_dev_desc *desc; 124 struct snd_sof_pdata *sof_pdata; 125 const struct snd_sof_dsp_ops *ops; 126 int ret; 127 128 dev_dbg(&pdev->dev, "ACPI DSP detected"); 129 130 sof_pdata = devm_kzalloc(dev, sizeof(*sof_pdata), GFP_KERNEL); 131 if (!sof_pdata) 132 return -ENOMEM; 133 134 desc = device_get_match_data(dev); 135 if (!desc) 136 return -ENODEV; 137 138#if IS_ENABLED(CONFIG_ACPI) && IS_ENABLED(CONFIG_SND_SOC_SOF_BAYTRAIL) 139 if (desc == &sof_acpi_baytrail_desc && soc_intel_is_byt_cr(pdev)) 140 desc = &sof_acpi_baytrailcr_desc; 141#endif 142 143 /* get ops for platform */ 144 ops = desc->ops; 145 if (!ops) { 146 dev_err(dev, "error: no matching ACPI descriptor ops\n"); 147 return -ENODEV; 148 } 149 150 sof_pdata->desc = desc; 151 sof_pdata->dev = &pdev->dev; 152 sof_pdata->fw_filename = desc->default_fw_filename; 153 154 /* alternate fw and tplg filenames ? */ 155 if (fw_path) 156 sof_pdata->fw_filename_prefix = fw_path; 157 else 158 sof_pdata->fw_filename_prefix = 159 sof_pdata->desc->default_fw_path; 160 161 if (tplg_path) 162 sof_pdata->tplg_filename_prefix = tplg_path; 163 else 164 sof_pdata->tplg_filename_prefix = 165 sof_pdata->desc->default_tplg_path; 166 167#if IS_ENABLED(CONFIG_SND_SOC_SOF_PROBE_WORK_QUEUE) 168 /* set callback to enable runtime_pm */ 169 sof_pdata->sof_probe_complete = sof_acpi_probe_complete; 170#endif 171 /* call sof helper for DSP hardware probe */ 172 ret = snd_sof_device_probe(dev, sof_pdata); 173 if (ret) { 174 dev_err(dev, "error: failed to probe DSP hardware!\n"); 175 return ret; 176 } 177 178#if !IS_ENABLED(CONFIG_SND_SOC_SOF_PROBE_WORK_QUEUE) 179 sof_acpi_probe_complete(dev); 180#endif 181 182 return ret; 183} 184 185static int sof_acpi_remove(struct platform_device *pdev) 186{ 187 if (!(sof_acpi_debug & SOF_ACPI_DISABLE_PM_RUNTIME)) 188 pm_runtime_disable(&pdev->dev); 189 190 /* call sof helper for DSP hardware remove */ 191 snd_sof_device_remove(&pdev->dev); 192 193 return 0; 194} 195 196#ifdef CONFIG_ACPI 197static const struct acpi_device_id sof_acpi_match[] = { 198#if IS_ENABLED(CONFIG_SND_SOC_SOF_BROADWELL) 199 { "INT3438", (unsigned long)&sof_acpi_broadwell_desc }, 200#endif 201#if IS_ENABLED(CONFIG_SND_SOC_SOF_BAYTRAIL) 202 { "80860F28", (unsigned long)&sof_acpi_baytrail_desc }, 203 { "808622A8", (unsigned long)&sof_acpi_cherrytrail_desc }, 204#endif 205 { } 206}; 207MODULE_DEVICE_TABLE(acpi, sof_acpi_match); 208#endif 209 210/* acpi_driver definition */ 211static struct platform_driver snd_sof_acpi_driver = { 212 .probe = sof_acpi_probe, 213 .remove = sof_acpi_remove, 214 .driver = { 215 .name = "sof-audio-acpi", 216 .pm = &sof_acpi_pm, 217 .acpi_match_table = ACPI_PTR(sof_acpi_match), 218 }, 219}; 220module_platform_driver(snd_sof_acpi_driver); 221 222MODULE_LICENSE("Dual BSD/GPL"); 223MODULE_IMPORT_NS(SND_SOC_SOF_BAYTRAIL); 224MODULE_IMPORT_NS(SND_SOC_SOF_BROADWELL); 225