xref: /linux/sound/soc/amd/acp/acp-rembrandt.c (revision 36ec807b627b4c0a0a382f0ae48eac7187d14b2b)
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) 2022 Advanced Micro Devices, Inc.
7 //
8 // Authors: Ajit Kumar Pandey <AjitKumar.Pandey@amd.com>
9 //          V sujith kumar Reddy <Vsujithkumar.Reddy@amd.com>
10 /*
11  * Hardware interface for Renoir ACP block
12  */
13 
14 #include <linux/platform_device.h>
15 #include <linux/module.h>
16 #include <linux/err.h>
17 #include <linux/io.h>
18 #include <sound/pcm_params.h>
19 #include <sound/soc.h>
20 #include <sound/soc-dai.h>
21 #include <linux/dma-mapping.h>
22 #include <linux/pci.h>
23 #include <linux/pm_runtime.h>
24 
25 #include "amd.h"
26 #include "../mach-config.h"
27 #include "acp-mach.h"
28 
29 #define DRV_NAME "acp_asoc_rembrandt"
30 
31 #define MP1_C2PMSG_69 0x3B10A14
32 #define MP1_C2PMSG_85 0x3B10A54
33 #define MP1_C2PMSG_93 0x3B10A74
34 #define HOST_BRIDGE_ID 0x14B5
35 
36 static struct acp_resource rsrc = {
37 	.offset = 0,
38 	.no_of_ctrls = 2,
39 	.irqp_used = 1,
40 	.soc_mclk = true,
41 	.irq_reg_offset = 0x1a00,
42 	.scratch_reg_offset = 0x12800,
43 	.sram_pte_offset = 0x03802800,
44 };
45 
46 static struct snd_soc_acpi_codecs amp_rt1019 = {
47 	.num_codecs = 1,
48 	.codecs = {"10EC1019"}
49 };
50 
51 static struct snd_soc_acpi_codecs amp_max = {
52 	.num_codecs = 1,
53 	.codecs = {"MX98360A"}
54 };
55 
56 static struct snd_soc_acpi_mach snd_soc_acpi_amd_rmb_acp_machines[] = {
57 	{
58 		.id = "10508825",
59 		.drv_name = "rmb-nau8825-max",
60 		.machine_quirk = snd_soc_acpi_codec_list,
61 		.quirk_data = &amp_max,
62 	},
63 	{
64 		.id = "AMDI0007",
65 		.drv_name = "rembrandt-acp",
66 	},
67 	{
68 		.id = "RTL5682",
69 		.drv_name = "rmb-rt5682s-rt1019",
70 		.machine_quirk = snd_soc_acpi_codec_list,
71 		.quirk_data = &amp_rt1019,
72 	},
73 	{},
74 };
75 
76 static struct snd_soc_dai_driver acp_rmb_dai[] = {
77 {
78 	.name = "acp-i2s-sp",
79 	.id = I2S_SP_INSTANCE,
80 	.playback = {
81 		.stream_name = "I2S SP Playback",
82 		.rates = SNDRV_PCM_RATE_8000_96000,
83 		.formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S8 |
84 			   SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S32_LE,
85 		.channels_min = 2,
86 		.channels_max = 8,
87 		.rate_min = 8000,
88 		.rate_max = 96000,
89 	},
90 	.capture = {
91 		.stream_name = "I2S SP Capture",
92 		.rates = SNDRV_PCM_RATE_8000_48000,
93 		.formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S8 |
94 			   SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S32_LE,
95 		.channels_min = 2,
96 		.channels_max = 2,
97 		.rate_min = 8000,
98 		.rate_max = 48000,
99 	},
100 	.ops = &asoc_acp_cpu_dai_ops,
101 },
102 {
103 	.name = "acp-i2s-bt",
104 	.id = I2S_BT_INSTANCE,
105 	.playback = {
106 		.stream_name = "I2S BT Playback",
107 		.rates = SNDRV_PCM_RATE_8000_96000,
108 		.formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S8 |
109 			   SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S32_LE,
110 		.channels_min = 2,
111 		.channels_max = 8,
112 		.rate_min = 8000,
113 		.rate_max = 96000,
114 	},
115 	.capture = {
116 		.stream_name = "I2S BT Capture",
117 		.rates = SNDRV_PCM_RATE_8000_48000,
118 		.formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S8 |
119 			   SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S32_LE,
120 		.channels_min = 2,
121 		.channels_max = 2,
122 		.rate_min = 8000,
123 		.rate_max = 48000,
124 	},
125 	.ops = &asoc_acp_cpu_dai_ops,
126 },
127 {
128 	.name = "acp-i2s-hs",
129 	.id = I2S_HS_INSTANCE,
130 	.playback = {
131 		.stream_name = "I2S HS Playback",
132 		.rates = SNDRV_PCM_RATE_8000_96000,
133 		.formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S8 |
134 			   SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S32_LE,
135 		.channels_min = 2,
136 		.channels_max = 8,
137 		.rate_min = 8000,
138 		.rate_max = 96000,
139 	},
140 	.capture = {
141 		.stream_name = "I2S HS Capture",
142 		.rates = SNDRV_PCM_RATE_8000_48000,
143 		.formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S8 |
144 			   SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S32_LE,
145 		.channels_min = 2,
146 		.channels_max = 8,
147 		.rate_min = 8000,
148 		.rate_max = 48000,
149 	},
150 	.ops = &asoc_acp_cpu_dai_ops,
151 },
152 {
153 	.name = "acp-pdm-dmic",
154 	.id = DMIC_INSTANCE,
155 	.capture = {
156 		.rates = SNDRV_PCM_RATE_8000_48000,
157 		.formats = SNDRV_PCM_FMTBIT_S32_LE,
158 		.channels_min = 2,
159 		.channels_max = 2,
160 		.rate_min = 8000,
161 		.rate_max = 48000,
162 	},
163 	.ops = &acp_dmic_dai_ops,
164 },
165 };
166 
167 static int acp6x_master_clock_generate(struct device *dev)
168 {
169 	int data = 0;
170 	struct pci_dev *smn_dev;
171 
172 	smn_dev = pci_get_device(PCI_VENDOR_ID_AMD, HOST_BRIDGE_ID, NULL);
173 	if (!smn_dev) {
174 		dev_err(dev, "Failed to get host bridge device\n");
175 		return -ENODEV;
176 	}
177 
178 	smn_write(smn_dev, MP1_C2PMSG_93, 0);
179 	smn_write(smn_dev, MP1_C2PMSG_85, 0xC4);
180 	smn_write(smn_dev, MP1_C2PMSG_69, 0x4);
181 	read_poll_timeout(smn_read, data, data, DELAY_US,
182 			  ACP_TIMEOUT, false, smn_dev, MP1_C2PMSG_93);
183 	return 0;
184 }
185 
186 static int rembrandt_audio_probe(struct platform_device *pdev)
187 {
188 	struct device *dev = &pdev->dev;
189 	struct acp_chip_info *chip;
190 	struct acp_dev_data *adata;
191 	struct resource *res;
192 	u32 ret;
193 
194 	chip = dev_get_platdata(&pdev->dev);
195 	if (!chip || !chip->base) {
196 		dev_err(&pdev->dev, "ACP chip data is NULL\n");
197 		return -ENODEV;
198 	}
199 
200 	if (chip->acp_rev != ACP6X_DEV) {
201 		dev_err(&pdev->dev, "Un-supported ACP Revision %d\n", chip->acp_rev);
202 		return -ENODEV;
203 	}
204 
205 	adata = devm_kzalloc(dev, sizeof(struct acp_dev_data), GFP_KERNEL);
206 	if (!adata)
207 		return -ENOMEM;
208 
209 	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "acp_mem");
210 	if (!res) {
211 		dev_err(&pdev->dev, "IORESOURCE_MEM FAILED\n");
212 		return -ENODEV;
213 	}
214 
215 	adata->acp_base = devm_ioremap(&pdev->dev, res->start, resource_size(res));
216 	if (!adata->acp_base)
217 		return -ENOMEM;
218 
219 	res = platform_get_resource_byname(pdev, IORESOURCE_IRQ, "acp_dai_irq");
220 	if (!res) {
221 		dev_err(&pdev->dev, "IORESOURCE_IRQ FAILED\n");
222 		return -ENODEV;
223 	}
224 
225 	adata->i2s_irq = res->start;
226 	adata->dev = dev;
227 	adata->dai_driver = acp_rmb_dai;
228 	adata->num_dai = ARRAY_SIZE(acp_rmb_dai);
229 	adata->rsrc = &rsrc;
230 	adata->platform = REMBRANDT;
231 	adata->flag = chip->flag;
232 	adata->is_i2s_config = chip->is_i2s_config;
233 	adata->machines = snd_soc_acpi_amd_rmb_acp_machines;
234 	acp_machine_select(adata);
235 
236 	dev_set_drvdata(dev, adata);
237 
238 	if (chip->is_i2s_config && rsrc.soc_mclk) {
239 		ret = acp6x_master_clock_generate(dev);
240 		if (ret)
241 			return ret;
242 	}
243 	acp_enable_interrupts(adata);
244 	acp_platform_register(dev);
245 	pm_runtime_set_autosuspend_delay(&pdev->dev, ACP_SUSPEND_DELAY_MS);
246 	pm_runtime_use_autosuspend(&pdev->dev);
247 	pm_runtime_mark_last_busy(&pdev->dev);
248 	pm_runtime_set_active(&pdev->dev);
249 	pm_runtime_enable(&pdev->dev);
250 	return 0;
251 }
252 
253 static void rembrandt_audio_remove(struct platform_device *pdev)
254 {
255 	struct device *dev = &pdev->dev;
256 	struct acp_dev_data *adata = dev_get_drvdata(dev);
257 
258 	acp_disable_interrupts(adata);
259 	acp_platform_unregister(dev);
260 	pm_runtime_disable(&pdev->dev);
261 }
262 
263 static int __maybe_unused rmb_pcm_resume(struct device *dev)
264 {
265 	struct acp_dev_data *adata = dev_get_drvdata(dev);
266 	struct acp_stream *stream;
267 	struct snd_pcm_substream *substream;
268 	snd_pcm_uframes_t buf_in_frames;
269 	u64 buf_size;
270 
271 	if (adata->is_i2s_config && adata->rsrc->soc_mclk)
272 		acp6x_master_clock_generate(dev);
273 
274 	spin_lock(&adata->acp_lock);
275 	list_for_each_entry(stream, &adata->stream_list, list) {
276 		substream = stream->substream;
277 		if (substream && substream->runtime) {
278 			buf_in_frames = (substream->runtime->buffer_size);
279 			buf_size = frames_to_bytes(substream->runtime, buf_in_frames);
280 			config_pte_for_stream(adata, stream);
281 			config_acp_dma(adata, stream, buf_size);
282 			if (stream->dai_id)
283 				restore_acp_i2s_params(substream, adata, stream);
284 			else
285 				restore_acp_pdm_params(substream, adata);
286 		}
287 	}
288 	spin_unlock(&adata->acp_lock);
289 	return 0;
290 }
291 
292 static const struct dev_pm_ops rmb_dma_pm_ops = {
293 	SET_SYSTEM_SLEEP_PM_OPS(NULL, rmb_pcm_resume)
294 };
295 
296 static struct platform_driver rembrandt_driver = {
297 	.probe = rembrandt_audio_probe,
298 	.remove_new = rembrandt_audio_remove,
299 	.driver = {
300 		.name = "acp_asoc_rembrandt",
301 		.pm = &rmb_dma_pm_ops,
302 	},
303 };
304 
305 module_platform_driver(rembrandt_driver);
306 
307 MODULE_DESCRIPTION("AMD ACP Rembrandt Driver");
308 MODULE_IMPORT_NS(SND_SOC_ACP_COMMON);
309 MODULE_LICENSE("Dual BSD/GPL");
310 MODULE_ALIAS("platform:" DRV_NAME);
311