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 #if IS_ENABLED(CONFIG_SND_SOC_SOF_HASWELL) 33 static const struct sof_dev_desc sof_acpi_haswell_desc = { 34 .machines = snd_soc_acpi_intel_haswell_machines, 35 .resindex_lpe_base = 0, 36 .resindex_pcicfg_base = 1, 37 .resindex_imr_base = -1, 38 .irqindex_host_ipc = 0, 39 .chip_info = &hsw_chip_info, 40 .default_fw_path = "intel/sof", 41 .default_tplg_path = "intel/sof-tplg", 42 .nocodec_fw_filename = "sof-hsw.ri", 43 .nocodec_tplg_filename = "sof-hsw-nocodec.tplg", 44 .ops = &sof_hsw_ops, 45 .arch_ops = &sof_xtensa_arch_ops 46 }; 47 #endif 48 49 #if IS_ENABLED(CONFIG_SND_SOC_SOF_BROADWELL) 50 static const struct sof_dev_desc sof_acpi_broadwell_desc = { 51 .machines = snd_soc_acpi_intel_broadwell_machines, 52 .resindex_lpe_base = 0, 53 .resindex_pcicfg_base = 1, 54 .resindex_imr_base = -1, 55 .irqindex_host_ipc = 0, 56 .chip_info = &bdw_chip_info, 57 .default_fw_path = "intel/sof", 58 .default_tplg_path = "intel/sof-tplg", 59 .nocodec_fw_filename = "sof-bdw.ri", 60 .nocodec_tplg_filename = "sof-bdw-nocodec.tplg", 61 .ops = &sof_bdw_ops, 62 .arch_ops = &sof_xtensa_arch_ops 63 }; 64 #endif 65 66 #if IS_ENABLED(CONFIG_SND_SOC_SOF_BAYTRAIL) 67 68 /* BYTCR uses different IRQ index */ 69 static const struct sof_dev_desc sof_acpi_baytrailcr_desc = { 70 .machines = snd_soc_acpi_intel_baytrail_machines, 71 .resindex_lpe_base = 0, 72 .resindex_pcicfg_base = 1, 73 .resindex_imr_base = 2, 74 .irqindex_host_ipc = 0, 75 .chip_info = &byt_chip_info, 76 .default_fw_path = "intel/sof", 77 .default_tplg_path = "intel/sof-tplg", 78 .nocodec_fw_filename = "sof-byt.ri", 79 .nocodec_tplg_filename = "sof-byt-nocodec.tplg", 80 .ops = &sof_byt_ops, 81 .arch_ops = &sof_xtensa_arch_ops 82 }; 83 84 static const struct sof_dev_desc sof_acpi_baytrail_desc = { 85 .machines = snd_soc_acpi_intel_baytrail_machines, 86 .resindex_lpe_base = 0, 87 .resindex_pcicfg_base = 1, 88 .resindex_imr_base = 2, 89 .irqindex_host_ipc = 5, 90 .chip_info = &byt_chip_info, 91 .default_fw_path = "intel/sof", 92 .default_tplg_path = "intel/sof-tplg", 93 .nocodec_fw_filename = "sof-byt.ri", 94 .nocodec_tplg_filename = "sof-byt-nocodec.tplg", 95 .ops = &sof_byt_ops, 96 .arch_ops = &sof_xtensa_arch_ops 97 }; 98 99 static const struct sof_dev_desc sof_acpi_cherrytrail_desc = { 100 .machines = snd_soc_acpi_intel_cherrytrail_machines, 101 .resindex_lpe_base = 0, 102 .resindex_pcicfg_base = 1, 103 .resindex_imr_base = 2, 104 .irqindex_host_ipc = 5, 105 .chip_info = &cht_chip_info, 106 .default_fw_path = "intel/sof", 107 .default_tplg_path = "intel/sof-tplg", 108 .nocodec_fw_filename = "sof-cht.ri", 109 .nocodec_tplg_filename = "sof-cht-nocodec.tplg", 110 .ops = &sof_cht_ops, 111 .arch_ops = &sof_xtensa_arch_ops 112 }; 113 114 #endif 115 116 static const struct dev_pm_ops sof_acpi_pm = { 117 SET_SYSTEM_SLEEP_PM_OPS(snd_sof_suspend, snd_sof_resume) 118 SET_RUNTIME_PM_OPS(snd_sof_runtime_suspend, snd_sof_runtime_resume, 119 snd_sof_runtime_idle) 120 }; 121 122 static void sof_acpi_probe_complete(struct device *dev) 123 { 124 /* allow runtime_pm */ 125 pm_runtime_set_autosuspend_delay(dev, SND_SOF_SUSPEND_DELAY_MS); 126 pm_runtime_use_autosuspend(dev); 127 pm_runtime_enable(dev); 128 } 129 130 static int sof_acpi_probe(struct platform_device *pdev) 131 { 132 struct device *dev = &pdev->dev; 133 const struct sof_dev_desc *desc; 134 struct snd_soc_acpi_mach *mach; 135 struct snd_sof_pdata *sof_pdata; 136 const struct snd_sof_dsp_ops *ops; 137 int ret; 138 139 dev_dbg(&pdev->dev, "ACPI DSP detected"); 140 141 sof_pdata = devm_kzalloc(dev, sizeof(*sof_pdata), GFP_KERNEL); 142 if (!sof_pdata) 143 return -ENOMEM; 144 145 desc = device_get_match_data(dev); 146 if (!desc) 147 return -ENODEV; 148 149 #if IS_ENABLED(CONFIG_SND_SOC_SOF_BAYTRAIL) 150 if (desc == &sof_acpi_baytrail_desc && soc_intel_is_byt_cr(pdev)) 151 desc = &sof_acpi_baytrailcr_desc; 152 #endif 153 154 /* get ops for platform */ 155 ops = desc->ops; 156 if (!ops) { 157 dev_err(dev, "error: no matching ACPI descriptor ops\n"); 158 return -ENODEV; 159 } 160 161 #if IS_ENABLED(CONFIG_SND_SOC_SOF_FORCE_NOCODEC_MODE) 162 /* force nocodec mode */ 163 dev_warn(dev, "Force to use nocodec mode\n"); 164 mach = devm_kzalloc(dev, sizeof(*mach), GFP_KERNEL); 165 if (!mach) 166 return -ENOMEM; 167 ret = sof_nocodec_setup(dev, sof_pdata, mach, desc, ops); 168 if (ret < 0) 169 return ret; 170 #else 171 /* find machine */ 172 mach = snd_soc_acpi_find_machine(desc->machines); 173 if (!mach) { 174 dev_warn(dev, "warning: No matching ASoC machine driver found\n"); 175 } else { 176 sof_pdata->fw_filename = mach->sof_fw_filename; 177 sof_pdata->tplg_filename = mach->sof_tplg_filename; 178 } 179 #endif 180 181 if (mach) { 182 mach->mach_params.platform = dev_name(dev); 183 mach->mach_params.acpi_ipc_irq_index = desc->irqindex_host_ipc; 184 } 185 186 sof_pdata->machine = mach; 187 sof_pdata->desc = desc; 188 sof_pdata->dev = &pdev->dev; 189 sof_pdata->platform = dev_name(dev); 190 191 /* alternate fw and tplg filenames ? */ 192 if (fw_path) 193 sof_pdata->fw_filename_prefix = fw_path; 194 else 195 sof_pdata->fw_filename_prefix = 196 sof_pdata->desc->default_fw_path; 197 198 if (tplg_path) 199 sof_pdata->tplg_filename_prefix = tplg_path; 200 else 201 sof_pdata->tplg_filename_prefix = 202 sof_pdata->desc->default_tplg_path; 203 204 #if IS_ENABLED(CONFIG_SND_SOC_SOF_PROBE_WORK_QUEUE) 205 /* set callback to enable runtime_pm */ 206 sof_pdata->sof_probe_complete = sof_acpi_probe_complete; 207 #endif 208 /* call sof helper for DSP hardware probe */ 209 ret = snd_sof_device_probe(dev, sof_pdata); 210 if (ret) { 211 dev_err(dev, "error: failed to probe DSP hardware!\n"); 212 return ret; 213 } 214 215 #if !IS_ENABLED(CONFIG_SND_SOC_SOF_PROBE_WORK_QUEUE) 216 sof_acpi_probe_complete(dev); 217 #endif 218 219 return ret; 220 } 221 222 static int sof_acpi_remove(struct platform_device *pdev) 223 { 224 pm_runtime_disable(&pdev->dev); 225 226 /* call sof helper for DSP hardware remove */ 227 snd_sof_device_remove(&pdev->dev); 228 229 return 0; 230 } 231 232 static const struct acpi_device_id sof_acpi_match[] = { 233 #if IS_ENABLED(CONFIG_SND_SOC_SOF_HASWELL) 234 { "INT33C8", (unsigned long)&sof_acpi_haswell_desc }, 235 #endif 236 #if IS_ENABLED(CONFIG_SND_SOC_SOF_BROADWELL) 237 { "INT3438", (unsigned long)&sof_acpi_broadwell_desc }, 238 #endif 239 #if IS_ENABLED(CONFIG_SND_SOC_SOF_BAYTRAIL) 240 { "80860F28", (unsigned long)&sof_acpi_baytrail_desc }, 241 { "808622A8", (unsigned long)&sof_acpi_cherrytrail_desc }, 242 #endif 243 { } 244 }; 245 MODULE_DEVICE_TABLE(acpi, sof_acpi_match); 246 247 /* acpi_driver definition */ 248 static struct platform_driver snd_sof_acpi_driver = { 249 .probe = sof_acpi_probe, 250 .remove = sof_acpi_remove, 251 .driver = { 252 .name = "sof-audio-acpi", 253 .pm = &sof_acpi_pm, 254 .acpi_match_table = ACPI_PTR(sof_acpi_match), 255 }, 256 }; 257 module_platform_driver(snd_sof_acpi_driver); 258 259 MODULE_LICENSE("Dual BSD/GPL"); 260