sound/soc/sof/sof-acpi-dev.c

   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);