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) 2021 Advanced Micro Devices, Inc.
7//
8// Authors: Ajit Kumar Pandey <AjitKumar.Pandey@amd.com>
9//
10
11/*
12 * Hardware interface for Renoir ACP block
13 */
14
15#include <linux/platform_device.h>
16#include <linux/module.h>
17#include <linux/err.h>
18#include <linux/io.h>
19#include <sound/pcm_params.h>
20#include <sound/soc.h>
21#include <sound/soc-dai.h>
22#include <linux/dma-mapping.h>
23#include <linux/pm_runtime.h>
24
25#include "amd.h"
26#include "acp-mach.h"
27
28#define DRV_NAME "acp_asoc_renoir"
29
30static struct acp_resource rsrc = {
31	.offset = 20,
32	.no_of_ctrls = 1,
33	.irqp_used = 0,
34	.irq_reg_offset = 0x1800,
35	.i2s_pin_cfg_offset = 0x1400,
36	.i2s_mode = 0x04,
37	.scratch_reg_offset = 0x12800,
38	.sram_pte_offset = 0x02052800,
39};
40
41static struct snd_soc_acpi_codecs amp_rt1019 = {
42	.num_codecs = 1,
43	.codecs = {"10EC1019"}
44};
45
46static struct snd_soc_acpi_codecs amp_max = {
47	.num_codecs = 1,
48	.codecs = {"MX98360A"}
49};
50
51static struct snd_soc_acpi_mach snd_soc_acpi_amd_acp_machines[] = {
52	{
53		.id = "10EC5682",
54		.drv_name = "acp3xalc56821019",
55		.machine_quirk = snd_soc_acpi_codec_list,
56		.quirk_data = &amp_rt1019,
57	},
58	{
59		.id = "RTL5682",
60		.drv_name = "acp3xalc5682sm98360",
61		.machine_quirk = snd_soc_acpi_codec_list,
62		.quirk_data = &amp_max,
63	},
64	{
65		.id = "RTL5682",
66		.drv_name = "acp3xalc5682s1019",
67		.machine_quirk = snd_soc_acpi_codec_list,
68		.quirk_data = &amp_rt1019,
69	},
70	{
71		.id = "AMDI1019",
72		.drv_name = "renoir-acp",
73	},
74	{
75		.id = "ESSX8336",
76		.drv_name = "acp3x-es83xx",
77	},
78	{},
79};
80
81static struct snd_soc_dai_driver acp_renoir_dai[] = {
82{
83	.name = "acp-i2s-sp",
84	.id = I2S_SP_INSTANCE,
85	.playback = {
86		.stream_name = "I2S SP Playback",
87		.rates = SNDRV_PCM_RATE_8000_96000,
88		.formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S8 |
89			   SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S32_LE,
90		.channels_min = 2,
91		.channels_max = 8,
92		.rate_min = 8000,
93		.rate_max = 96000,
94	},
95	.capture = {
96		.stream_name = "I2S SP Capture",
97		.rates = SNDRV_PCM_RATE_8000_48000,
98		.formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S8 |
99			   SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S32_LE,
100		.channels_min = 2,
101		.channels_max = 2,
102		.rate_min = 8000,
103		.rate_max = 48000,
104	},
105	.ops = &asoc_acp_cpu_dai_ops,
106},
107{
108	.name = "acp-i2s-bt",
109	.id = I2S_BT_INSTANCE,
110	.playback = {
111		.stream_name = "I2S BT Playback",
112		.rates = SNDRV_PCM_RATE_8000_96000,
113		.formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S8 |
114			   SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S32_LE,
115		.channels_min = 2,
116		.channels_max = 8,
117		.rate_min = 8000,
118		.rate_max = 96000,
119	},
120	.capture = {
121		.stream_name = "I2S BT Capture",
122		.rates = SNDRV_PCM_RATE_8000_48000,
123		.formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S8 |
124			   SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S32_LE,
125		.channels_min = 2,
126		.channels_max = 2,
127		.rate_min = 8000,
128		.rate_max = 48000,
129	},
130	.ops = &asoc_acp_cpu_dai_ops,
131},
132{
133	.name = "acp-pdm-dmic",
134	.id = DMIC_INSTANCE,
135	.capture = {
136		.rates = SNDRV_PCM_RATE_8000_48000,
137		.formats = SNDRV_PCM_FMTBIT_S32_LE,
138		.channels_min = 2,
139		.channels_max = 2,
140		.rate_min = 8000,
141		.rate_max = 48000,
142	},
143	.ops = &acp_dmic_dai_ops,
144},
145};
146
147
148static int renoir_audio_probe(struct platform_device *pdev)
149{
150	struct device *dev = &pdev->dev;
151	struct acp_chip_info *chip;
152	struct acp_dev_data *adata;
153	struct resource *res;
154	int ret;
155
156	chip = dev_get_platdata(&pdev->dev);
157	if (!chip || !chip->base) {
158		dev_err(&pdev->dev, "ACP chip data is NULL\n");
159		return -ENODEV;
160	}
161
162	if (chip->acp_rev != ACP3X_DEV) {
163		dev_err(&pdev->dev, "Un-supported ACP Revision %d\n", chip->acp_rev);
164		return -ENODEV;
165	}
166
167	adata = devm_kzalloc(dev, sizeof(struct acp_dev_data), GFP_KERNEL);
168	if (!adata)
169		return -ENOMEM;
170
171	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "acp_mem");
172	if (!res) {
173		dev_err(&pdev->dev, "IORESOURCE_MEM FAILED\n");
174		return -ENODEV;
175	}
176
177	adata->acp_base = devm_ioremap(&pdev->dev, res->start, resource_size(res));
178	if (!adata->acp_base)
179		return -ENOMEM;
180
181	ret = platform_get_irq_byname(pdev, "acp_dai_irq");
182	if (ret < 0)
183		return ret;
184	adata->i2s_irq = ret;
185
186	adata->dev = dev;
187	adata->dai_driver = acp_renoir_dai;
188	adata->num_dai = ARRAY_SIZE(acp_renoir_dai);
189	adata->rsrc = &rsrc;
190	adata->platform = RENOIR;
191	adata->flag = chip->flag;
192
193	adata->machines = snd_soc_acpi_amd_acp_machines;
194	acp_machine_select(adata);
195
196	dev_set_drvdata(dev, adata);
197	acp_enable_interrupts(adata);
198	acp_platform_register(dev);
199
200	pm_runtime_set_autosuspend_delay(&pdev->dev, ACP_SUSPEND_DELAY_MS);
201	pm_runtime_use_autosuspend(&pdev->dev);
202	pm_runtime_mark_last_busy(&pdev->dev);
203	pm_runtime_set_active(&pdev->dev);
204	pm_runtime_enable(&pdev->dev);
205	return 0;
206}
207
208static void renoir_audio_remove(struct platform_device *pdev)
209{
210	struct device *dev = &pdev->dev;
211	struct acp_dev_data *adata = dev_get_drvdata(dev);
212
213	acp_disable_interrupts(adata);
214	acp_platform_unregister(dev);
215}
216
217static int __maybe_unused rn_pcm_resume(struct device *dev)
218{
219	struct acp_dev_data *adata = dev_get_drvdata(dev);
220	struct acp_stream *stream;
221	struct snd_pcm_substream *substream;
222	snd_pcm_uframes_t buf_in_frames;
223	u64 buf_size;
224
225	spin_lock(&adata->acp_lock);
226	list_for_each_entry(stream, &adata->stream_list, list) {
227		substream = stream->substream;
228		if (substream && substream->runtime) {
229			buf_in_frames = (substream->runtime->buffer_size);
230			buf_size = frames_to_bytes(substream->runtime, buf_in_frames);
231			config_pte_for_stream(adata, stream);
232			config_acp_dma(adata, stream, buf_size);
233			if (stream->dai_id)
234				restore_acp_i2s_params(substream, adata, stream);
235			else
236				restore_acp_pdm_params(substream, adata);
237		}
238	}
239	spin_unlock(&adata->acp_lock);
240	return 0;
241}
242
243static const struct dev_pm_ops rn_dma_pm_ops = {
244	SET_SYSTEM_SLEEP_PM_OPS(NULL, rn_pcm_resume)
245};
246
247static struct platform_driver renoir_driver = {
248	.probe = renoir_audio_probe,
249	.remove_new = renoir_audio_remove,
250	.driver = {
251		.name = "acp_asoc_renoir",
252		.pm = &rn_dma_pm_ops,
253	},
254};
255
256module_platform_driver(renoir_driver);
257
258MODULE_DESCRIPTION("AMD ACP Renoir Driver");
259MODULE_IMPORT_NS(SND_SOC_ACP_COMMON);
260MODULE_LICENSE("Dual BSD/GPL");
261MODULE_ALIAS("platform:" DRV_NAME);
262