1 // SPDX-License-Identifier: (GPL-2.0 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 24 static char *fw_path; 25 module_param(fw_path, charp, 0444); 26 MODULE_PARM_DESC(fw_path, "alternate path for SOF firmware."); 27 28 static char *tplg_path; 29 module_param(tplg_path, charp, 0444); 30 MODULE_PARM_DESC(tplg_path, "alternate path for SOF topology."); 31 32 static int sof_acpi_debug; 33 module_param_named(sof_acpi_debug, sof_acpi_debug, int, 0444); 34 MODULE_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_SND_SOC_SOF_BROADWELL) 39 static 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_SND_SOC_SOF_BAYTRAIL) 55 56 /* BYTCR uses different IRQ index */ 57 static 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 71 static 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 85 static 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 100 101 static 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 }; 106 107 static void sof_acpi_probe_complete(struct device *dev) 108 { 109 if (sof_acpi_debug & SOF_ACPI_DISABLE_PM_RUNTIME) 110 return; 111 112 /* allow runtime_pm */ 113 pm_runtime_set_autosuspend_delay(dev, SND_SOF_SUSPEND_DELAY_MS); 114 pm_runtime_use_autosuspend(dev); 115 pm_runtime_enable(dev); 116 } 117 118 static int sof_acpi_probe(struct platform_device *pdev) 119 { 120 struct device *dev = &pdev->dev; 121 const struct sof_dev_desc *desc; 122 struct snd_sof_pdata *sof_pdata; 123 const struct snd_sof_dsp_ops *ops; 124 int ret; 125 126 dev_dbg(&pdev->dev, "ACPI DSP detected"); 127 128 sof_pdata = devm_kzalloc(dev, sizeof(*sof_pdata), GFP_KERNEL); 129 if (!sof_pdata) 130 return -ENOMEM; 131 132 desc = device_get_match_data(dev); 133 if (!desc) 134 return -ENODEV; 135 136 #if IS_ENABLED(CONFIG_SND_SOC_SOF_BAYTRAIL) 137 if (desc == &sof_acpi_baytrail_desc && soc_intel_is_byt_cr(pdev)) 138 desc = &sof_acpi_baytrailcr_desc; 139 #endif 140 141 /* get ops for platform */ 142 ops = desc->ops; 143 if (!ops) { 144 dev_err(dev, "error: no matching ACPI descriptor ops\n"); 145 return -ENODEV; 146 } 147 148 sof_pdata->desc = desc; 149 sof_pdata->dev = &pdev->dev; 150 sof_pdata->fw_filename = desc->default_fw_filename; 151 152 /* alternate fw and tplg filenames ? */ 153 if (fw_path) 154 sof_pdata->fw_filename_prefix = fw_path; 155 else 156 sof_pdata->fw_filename_prefix = 157 sof_pdata->desc->default_fw_path; 158 159 if (tplg_path) 160 sof_pdata->tplg_filename_prefix = tplg_path; 161 else 162 sof_pdata->tplg_filename_prefix = 163 sof_pdata->desc->default_tplg_path; 164 165 #if IS_ENABLED(CONFIG_SND_SOC_SOF_PROBE_WORK_QUEUE) 166 /* set callback to enable runtime_pm */ 167 sof_pdata->sof_probe_complete = sof_acpi_probe_complete; 168 #endif 169 /* call sof helper for DSP hardware probe */ 170 ret = snd_sof_device_probe(dev, sof_pdata); 171 if (ret) { 172 dev_err(dev, "error: failed to probe DSP hardware!\n"); 173 return ret; 174 } 175 176 #if !IS_ENABLED(CONFIG_SND_SOC_SOF_PROBE_WORK_QUEUE) 177 sof_acpi_probe_complete(dev); 178 #endif 179 180 return ret; 181 } 182 183 static int sof_acpi_remove(struct platform_device *pdev) 184 { 185 if (!(sof_acpi_debug & SOF_ACPI_DISABLE_PM_RUNTIME)) 186 pm_runtime_disable(&pdev->dev); 187 188 /* call sof helper for DSP hardware remove */ 189 snd_sof_device_remove(&pdev->dev); 190 191 return 0; 192 } 193 194 static const struct acpi_device_id sof_acpi_match[] = { 195 #if IS_ENABLED(CONFIG_SND_SOC_SOF_BROADWELL) 196 { "INT3438", (unsigned long)&sof_acpi_broadwell_desc }, 197 #endif 198 #if IS_ENABLED(CONFIG_SND_SOC_SOF_BAYTRAIL) 199 { "80860F28", (unsigned long)&sof_acpi_baytrail_desc }, 200 { "808622A8", (unsigned long)&sof_acpi_cherrytrail_desc }, 201 #endif 202 { } 203 }; 204 MODULE_DEVICE_TABLE(acpi, sof_acpi_match); 205 206 /* acpi_driver definition */ 207 static struct platform_driver snd_sof_acpi_driver = { 208 .probe = sof_acpi_probe, 209 .remove = sof_acpi_remove, 210 .driver = { 211 .name = "sof-audio-acpi", 212 .pm = &sof_acpi_pm, 213 .acpi_match_table = ACPI_PTR(sof_acpi_match), 214 }, 215 }; 216 module_platform_driver(snd_sof_acpi_driver); 217 218 MODULE_LICENSE("Dual BSD/GPL"); 219 MODULE_IMPORT_NS(SND_SOC_SOF_BAYTRAIL); 220 MODULE_IMPORT_NS(SND_SOC_SOF_BROADWELL); 221