Linux kernel mirror (for testing)
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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
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_SND_SOC_SOF_HASWELL)
39static const struct sof_dev_desc sof_acpi_haswell_desc = {
40 .machines = snd_soc_acpi_intel_haswell_machines,
41 .resindex_lpe_base = 0,
42 .resindex_pcicfg_base = 1,
43 .resindex_imr_base = -1,
44 .irqindex_host_ipc = 0,
45 .chip_info = &hsw_chip_info,
46 .default_fw_path = "intel/sof",
47 .default_tplg_path = "intel/sof-tplg",
48 .nocodec_fw_filename = "sof-hsw.ri",
49 .nocodec_tplg_filename = "sof-hsw-nocodec.tplg",
50 .ops = &sof_hsw_ops,
51 .arch_ops = &sof_xtensa_arch_ops
52};
53#endif
54
55#if IS_ENABLED(CONFIG_SND_SOC_SOF_BROADWELL)
56static const struct sof_dev_desc sof_acpi_broadwell_desc = {
57 .machines = snd_soc_acpi_intel_broadwell_machines,
58 .resindex_lpe_base = 0,
59 .resindex_pcicfg_base = 1,
60 .resindex_imr_base = -1,
61 .irqindex_host_ipc = 0,
62 .chip_info = &bdw_chip_info,
63 .default_fw_path = "intel/sof",
64 .default_tplg_path = "intel/sof-tplg",
65 .nocodec_fw_filename = "sof-bdw.ri",
66 .nocodec_tplg_filename = "sof-bdw-nocodec.tplg",
67 .ops = &sof_bdw_ops,
68 .arch_ops = &sof_xtensa_arch_ops
69};
70#endif
71
72#if IS_ENABLED(CONFIG_SND_SOC_SOF_BAYTRAIL)
73
74/* BYTCR uses different IRQ index */
75static const struct sof_dev_desc sof_acpi_baytrailcr_desc = {
76 .machines = snd_soc_acpi_intel_baytrail_machines,
77 .resindex_lpe_base = 0,
78 .resindex_pcicfg_base = 1,
79 .resindex_imr_base = 2,
80 .irqindex_host_ipc = 0,
81 .chip_info = &byt_chip_info,
82 .default_fw_path = "intel/sof",
83 .default_tplg_path = "intel/sof-tplg",
84 .nocodec_fw_filename = "sof-byt.ri",
85 .nocodec_tplg_filename = "sof-byt-nocodec.tplg",
86 .ops = &sof_byt_ops,
87 .arch_ops = &sof_xtensa_arch_ops
88};
89
90static const struct sof_dev_desc sof_acpi_baytrail_desc = {
91 .machines = snd_soc_acpi_intel_baytrail_machines,
92 .resindex_lpe_base = 0,
93 .resindex_pcicfg_base = 1,
94 .resindex_imr_base = 2,
95 .irqindex_host_ipc = 5,
96 .chip_info = &byt_chip_info,
97 .default_fw_path = "intel/sof",
98 .default_tplg_path = "intel/sof-tplg",
99 .nocodec_fw_filename = "sof-byt.ri",
100 .nocodec_tplg_filename = "sof-byt-nocodec.tplg",
101 .ops = &sof_byt_ops,
102 .arch_ops = &sof_xtensa_arch_ops
103};
104
105static const struct sof_dev_desc sof_acpi_cherrytrail_desc = {
106 .machines = snd_soc_acpi_intel_cherrytrail_machines,
107 .resindex_lpe_base = 0,
108 .resindex_pcicfg_base = 1,
109 .resindex_imr_base = 2,
110 .irqindex_host_ipc = 5,
111 .chip_info = &cht_chip_info,
112 .default_fw_path = "intel/sof",
113 .default_tplg_path = "intel/sof-tplg",
114 .nocodec_fw_filename = "sof-cht.ri",
115 .nocodec_tplg_filename = "sof-cht-nocodec.tplg",
116 .ops = &sof_cht_ops,
117 .arch_ops = &sof_xtensa_arch_ops
118};
119
120#endif
121
122static const struct dev_pm_ops sof_acpi_pm = {
123 SET_SYSTEM_SLEEP_PM_OPS(snd_sof_suspend, snd_sof_resume)
124 SET_RUNTIME_PM_OPS(snd_sof_runtime_suspend, snd_sof_runtime_resume,
125 snd_sof_runtime_idle)
126};
127
128static void sof_acpi_probe_complete(struct device *dev)
129{
130 if (sof_acpi_debug & SOF_ACPI_DISABLE_PM_RUNTIME)
131 return;
132
133 /* allow runtime_pm */
134 pm_runtime_set_autosuspend_delay(dev, SND_SOF_SUSPEND_DELAY_MS);
135 pm_runtime_use_autosuspend(dev);
136 pm_runtime_enable(dev);
137}
138
139static int sof_acpi_probe(struct platform_device *pdev)
140{
141 struct device *dev = &pdev->dev;
142 const struct sof_dev_desc *desc;
143 struct snd_soc_acpi_mach *mach;
144 struct snd_sof_pdata *sof_pdata;
145 const struct snd_sof_dsp_ops *ops;
146 int ret;
147
148 dev_dbg(&pdev->dev, "ACPI DSP detected");
149
150 sof_pdata = devm_kzalloc(dev, sizeof(*sof_pdata), GFP_KERNEL);
151 if (!sof_pdata)
152 return -ENOMEM;
153
154 desc = device_get_match_data(dev);
155 if (!desc)
156 return -ENODEV;
157
158#if IS_ENABLED(CONFIG_SND_SOC_SOF_BAYTRAIL)
159 if (desc == &sof_acpi_baytrail_desc && soc_intel_is_byt_cr(pdev))
160 desc = &sof_acpi_baytrailcr_desc;
161#endif
162
163 /* get ops for platform */
164 ops = desc->ops;
165 if (!ops) {
166 dev_err(dev, "error: no matching ACPI descriptor ops\n");
167 return -ENODEV;
168 }
169
170#if IS_ENABLED(CONFIG_SND_SOC_SOF_FORCE_NOCODEC_MODE)
171 /* force nocodec mode */
172 dev_warn(dev, "Force to use nocodec mode\n");
173 mach = devm_kzalloc(dev, sizeof(*mach), GFP_KERNEL);
174 if (!mach)
175 return -ENOMEM;
176 ret = sof_nocodec_setup(dev, sof_pdata, mach, desc, ops);
177 if (ret < 0)
178 return ret;
179#else
180 /* find machine */
181 mach = snd_soc_acpi_find_machine(desc->machines);
182 if (!mach) {
183 dev_warn(dev, "warning: No matching ASoC machine driver found\n");
184 } else {
185 sof_pdata->fw_filename = mach->sof_fw_filename;
186 sof_pdata->tplg_filename = mach->sof_tplg_filename;
187 }
188#endif
189
190 if (mach) {
191 mach->mach_params.platform = dev_name(dev);
192 mach->mach_params.acpi_ipc_irq_index = desc->irqindex_host_ipc;
193 }
194
195 sof_pdata->machine = mach;
196 sof_pdata->desc = desc;
197 sof_pdata->dev = &pdev->dev;
198 sof_pdata->platform = dev_name(dev);
199
200 /* alternate fw and tplg filenames ? */
201 if (fw_path)
202 sof_pdata->fw_filename_prefix = fw_path;
203 else
204 sof_pdata->fw_filename_prefix =
205 sof_pdata->desc->default_fw_path;
206
207 if (tplg_path)
208 sof_pdata->tplg_filename_prefix = tplg_path;
209 else
210 sof_pdata->tplg_filename_prefix =
211 sof_pdata->desc->default_tplg_path;
212
213#if IS_ENABLED(CONFIG_SND_SOC_SOF_PROBE_WORK_QUEUE)
214 /* set callback to enable runtime_pm */
215 sof_pdata->sof_probe_complete = sof_acpi_probe_complete;
216#endif
217 /* call sof helper for DSP hardware probe */
218 ret = snd_sof_device_probe(dev, sof_pdata);
219 if (ret) {
220 dev_err(dev, "error: failed to probe DSP hardware!\n");
221 return ret;
222 }
223
224#if !IS_ENABLED(CONFIG_SND_SOC_SOF_PROBE_WORK_QUEUE)
225 sof_acpi_probe_complete(dev);
226#endif
227
228 return ret;
229}
230
231static int sof_acpi_remove(struct platform_device *pdev)
232{
233 if (!(sof_acpi_debug & SOF_ACPI_DISABLE_PM_RUNTIME))
234 pm_runtime_disable(&pdev->dev);
235
236 /* call sof helper for DSP hardware remove */
237 snd_sof_device_remove(&pdev->dev);
238
239 return 0;
240}
241
242static const struct acpi_device_id sof_acpi_match[] = {
243#if IS_ENABLED(CONFIG_SND_SOC_SOF_HASWELL)
244 { "INT33C8", (unsigned long)&sof_acpi_haswell_desc },
245#endif
246#if IS_ENABLED(CONFIG_SND_SOC_SOF_BROADWELL)
247 { "INT3438", (unsigned long)&sof_acpi_broadwell_desc },
248#endif
249#if IS_ENABLED(CONFIG_SND_SOC_SOF_BAYTRAIL)
250 { "80860F28", (unsigned long)&sof_acpi_baytrail_desc },
251 { "808622A8", (unsigned long)&sof_acpi_cherrytrail_desc },
252#endif
253 { }
254};
255MODULE_DEVICE_TABLE(acpi, sof_acpi_match);
256
257/* acpi_driver definition */
258static struct platform_driver snd_sof_acpi_driver = {
259 .probe = sof_acpi_probe,
260 .remove = sof_acpi_remove,
261 .driver = {
262 .name = "sof-audio-acpi",
263 .pm = &sof_acpi_pm,
264 .acpi_match_table = ACPI_PTR(sof_acpi_match),
265 },
266};
267module_platform_driver(snd_sof_acpi_driver);
268
269MODULE_LICENSE("Dual BSD/GPL");