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) 2023 Advanced Micro Devices, Inc.
7//
8// Authors: Syed Saba kareem <syed.sabakareem@amd.com>
9/*
10 * Hardware interface for ACP7.0 block
11 */
12
13#include <linux/platform_device.h>
14#include <linux/module.h>
15#include <linux/err.h>
16#include <linux/io.h>
17#include <sound/pcm_params.h>
18#include <sound/soc.h>
19#include <sound/soc-dai.h>
20#include <linux/dma-mapping.h>
21#include <linux/pm_runtime.h>
22#include <linux/pci.h>
23#include "amd.h"
24#include "acp-mach.h"
25
26#define DRV_NAME "acp_asoc_acp70"
27
28static struct acp_resource rsrc = {
29 .offset = 0,
30 .no_of_ctrls = 2,
31 .irqp_used = 1,
32 .soc_mclk = true,
33 .irq_reg_offset = 0x1a00,
34 .i2s_pin_cfg_offset = 0x1440,
35 .i2s_mode = 0x0a,
36 .scratch_reg_offset = 0x12800,
37 .sram_pte_offset = 0x03802800,
38};
39
40static struct snd_soc_acpi_mach snd_soc_acpi_amd_acp70_acp_machines[] = {
41 {
42 .id = "AMDI0029",
43 .drv_name = "acp70-acp",
44 },
45 {},
46};
47
48static struct snd_soc_dai_driver acp70_dai[] = {
49{
50 .name = "acp-i2s-sp",
51 .id = I2S_SP_INSTANCE,
52 .playback = {
53 .stream_name = "I2S SP Playback",
54 .rates = SNDRV_PCM_RATE_8000_96000,
55 .formats = SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S8 |
56 SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE,
57 .channels_min = 2,
58 .channels_max = 8,
59 .rate_min = 8000,
60 .rate_max = 96000,
61 },
62 .capture = {
63 .stream_name = "I2S SP Capture",
64 .rates = SNDRV_PCM_RATE_8000_48000,
65 .formats = SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S8 |
66 SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE,
67 .channels_min = 2,
68 .channels_max = 2,
69 .rate_min = 8000,
70 .rate_max = 48000,
71 },
72 .ops = &asoc_acp_cpu_dai_ops,
73},
74{
75 .name = "acp-i2s-bt",
76 .id = I2S_BT_INSTANCE,
77 .playback = {
78 .stream_name = "I2S BT Playback",
79 .rates = SNDRV_PCM_RATE_8000_96000,
80 .formats = SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S8 |
81 SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE,
82 .channels_min = 2,
83 .channels_max = 8,
84 .rate_min = 8000,
85 .rate_max = 96000,
86 },
87 .capture = {
88 .stream_name = "I2S BT Capture",
89 .rates = SNDRV_PCM_RATE_8000_48000,
90 .formats = SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S8 |
91 SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE,
92 .channels_min = 2,
93 .channels_max = 2,
94 .rate_min = 8000,
95 .rate_max = 48000,
96 },
97 .ops = &asoc_acp_cpu_dai_ops,
98},
99{
100 .name = "acp-i2s-hs",
101 .id = I2S_HS_INSTANCE,
102 .playback = {
103 .stream_name = "I2S HS Playback",
104 .rates = SNDRV_PCM_RATE_8000_96000,
105 .formats = SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S8 |
106 SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE,
107 .channels_min = 2,
108 .channels_max = 8,
109 .rate_min = 8000,
110 .rate_max = 96000,
111 },
112 .capture = {
113 .stream_name = "I2S HS Capture",
114 .rates = SNDRV_PCM_RATE_8000_48000,
115 .formats = SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S8 |
116 SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE,
117 .channels_min = 2,
118 .channels_max = 8,
119 .rate_min = 8000,
120 .rate_max = 48000,
121 },
122 .ops = &asoc_acp_cpu_dai_ops,
123},
124{
125 .name = "acp-pdm-dmic",
126 .id = DMIC_INSTANCE,
127 .capture = {
128 .rates = SNDRV_PCM_RATE_8000_48000,
129 .formats = SNDRV_PCM_FMTBIT_S32_LE,
130 .channels_min = 2,
131 .channels_max = 2,
132 .rate_min = 8000,
133 .rate_max = 48000,
134 },
135 .ops = &acp_dmic_dai_ops,
136},
137};
138
139static int acp_acp70_audio_probe(struct platform_device *pdev)
140{
141 struct device *dev = &pdev->dev;
142 struct acp_chip_info *chip;
143 struct acp_dev_data *adata;
144 struct resource *res;
145
146 chip = dev_get_platdata(dev: &pdev->dev);
147 if (!chip || !chip->base) {
148 dev_err(&pdev->dev, "ACP chip data is NULL\n");
149 return -ENODEV;
150 }
151
152 if (chip->acp_rev != ACP70_DEV) {
153 dev_err(&pdev->dev, "Un-supported ACP Revision %d\n", chip->acp_rev);
154 return -ENODEV;
155 }
156
157 adata = devm_kzalloc(dev, size: sizeof(struct acp_dev_data), GFP_KERNEL);
158 if (!adata)
159 return -ENOMEM;
160
161 res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "acp_mem");
162 if (!res) {
163 dev_err(&pdev->dev, "IORESOURCE_MEM FAILED\n");
164 return -ENODEV;
165 }
166
167 adata->acp_base = devm_ioremap(dev: &pdev->dev, offset: res->start, size: resource_size(res));
168 if (!adata->acp_base)
169 return -ENOMEM;
170
171 res = platform_get_resource_byname(pdev, IORESOURCE_IRQ, "acp_dai_irq");
172 if (!res) {
173 dev_err(&pdev->dev, "IORESOURCE_IRQ FAILED\n");
174 return -ENODEV;
175 }
176
177 adata->i2s_irq = res->start;
178 adata->dev = dev;
179 adata->dai_driver = acp70_dai;
180 adata->num_dai = ARRAY_SIZE(acp70_dai);
181 adata->rsrc = &rsrc;
182 adata->machines = snd_soc_acpi_amd_acp70_acp_machines;
183 adata->platform = ACP70;
184 adata->flag = chip->flag;
185 acp_machine_select(adata);
186
187 dev_set_drvdata(dev, data: adata);
188 acp_enable_interrupts(adata);
189 acp_platform_register(dev);
190 pm_runtime_set_autosuspend_delay(dev: &pdev->dev, ACP_SUSPEND_DELAY_MS);
191 pm_runtime_use_autosuspend(dev: &pdev->dev);
192 pm_runtime_mark_last_busy(dev: &pdev->dev);
193 pm_runtime_set_active(dev: &pdev->dev);
194 pm_runtime_enable(dev: &pdev->dev);
195 return 0;
196}
197
198static void acp_acp70_audio_remove(struct platform_device *pdev)
199{
200 struct device *dev = &pdev->dev;
201 struct acp_dev_data *adata = dev_get_drvdata(dev);
202
203 acp_disable_interrupts(adata);
204 acp_platform_unregister(dev);
205 pm_runtime_disable(dev: &pdev->dev);
206}
207
208static int __maybe_unused acp70_pcm_resume(struct device *dev)
209{
210 struct acp_dev_data *adata = dev_get_drvdata(dev);
211 struct acp_stream *stream;
212 struct snd_pcm_substream *substream;
213 snd_pcm_uframes_t buf_in_frames;
214 u64 buf_size;
215
216 spin_lock(lock: &adata->acp_lock);
217 list_for_each_entry(stream, &adata->stream_list, list) {
218 if (stream) {
219 substream = stream->substream;
220 if (substream && substream->runtime) {
221 buf_in_frames = (substream->runtime->buffer_size);
222 buf_size = frames_to_bytes(runtime: substream->runtime, size: buf_in_frames);
223 config_pte_for_stream(adata, stream);
224 config_acp_dma(adata, stream, size: buf_size);
225 if (stream->dai_id)
226 restore_acp_i2s_params(substream, adata, stream);
227 else
228 restore_acp_pdm_params(substream, adata);
229 }
230 }
231 }
232 spin_unlock(lock: &adata->acp_lock);
233 return 0;
234}
235
236static const struct dev_pm_ops acp70_dma_pm_ops = {
237 SET_SYSTEM_SLEEP_PM_OPS(NULL, acp70_pcm_resume)
238};
239
240static struct platform_driver acp70_driver = {
241 .probe = acp_acp70_audio_probe,
242 .remove_new = acp_acp70_audio_remove,
243 .driver = {
244 .name = "acp_asoc_acp70",
245 .pm = &acp70_dma_pm_ops,
246 },
247};
248
249module_platform_driver(acp70_driver);
250
251MODULE_DESCRIPTION("AMD ACP ACP70 Driver");
252MODULE_IMPORT_NS(SND_SOC_ACP_COMMON);
253MODULE_LICENSE("Dual BSD/GPL");
254MODULE_ALIAS("platform:" DRV_NAME);
255

source code of linux/sound/soc/amd/acp/acp70.c