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
36static 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	.i2s_pin_cfg_offset = 0x1440,
43	.i2s_mode = 0x0a,
44	.scratch_reg_offset = 0x12800,
45	.sram_pte_offset = 0x03802800,
46};
47
48static struct snd_soc_acpi_codecs amp_rt1019 = {
49	.num_codecs = 1,
50	.codecs = {"10EC1019"}
51};
52
53static struct snd_soc_acpi_codecs amp_max = {
54	.num_codecs = 1,
55	.codecs = {"MX98360A"}
56};
57
58static struct snd_soc_acpi_mach snd_soc_acpi_amd_rmb_acp_machines[] = {
59	{
60		.id = "10508825",
61		.drv_name = "rmb-nau8825-max",
62		.machine_quirk = snd_soc_acpi_codec_list,
63		.quirk_data = &amp_max,
64	},
65	{
66		.id = "AMDI0007",
67		.drv_name = "rembrandt-acp",
68	},
69	{
70		.id = "RTL5682",
71		.drv_name = "rmb-rt5682s-rt1019",
72		.machine_quirk = snd_soc_acpi_codec_list,
73		.quirk_data = &amp_rt1019,
74	},
75	{},
76};
77
78static struct snd_soc_dai_driver acp_rmb_dai[] = {
79{
80	.name = "acp-i2s-sp",
81	.id = I2S_SP_INSTANCE,
82	.playback = {
83		.stream_name = "I2S SP Playback",
84		.rates = SNDRV_PCM_RATE_8000_96000,
85		.formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S8 |
86			   SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S32_LE,
87		.channels_min = 2,
88		.channels_max = 8,
89		.rate_min = 8000,
90		.rate_max = 96000,
91	},
92	.capture = {
93		.stream_name = "I2S SP Capture",
94		.rates = SNDRV_PCM_RATE_8000_48000,
95		.formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S8 |
96			   SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S32_LE,
97		.channels_min = 2,
98		.channels_max = 2,
99		.rate_min = 8000,
100		.rate_max = 48000,
101	},
102	.ops = &asoc_acp_cpu_dai_ops,
103},
104{
105	.name = "acp-i2s-bt",
106	.id = I2S_BT_INSTANCE,
107	.playback = {
108		.stream_name = "I2S BT Playback",
109		.rates = SNDRV_PCM_RATE_8000_96000,
110		.formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S8 |
111			   SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S32_LE,
112		.channels_min = 2,
113		.channels_max = 8,
114		.rate_min = 8000,
115		.rate_max = 96000,
116	},
117	.capture = {
118		.stream_name = "I2S BT Capture",
119		.rates = SNDRV_PCM_RATE_8000_48000,
120		.formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S8 |
121			   SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S32_LE,
122		.channels_min = 2,
123		.channels_max = 2,
124		.rate_min = 8000,
125		.rate_max = 48000,
126	},
127	.ops = &asoc_acp_cpu_dai_ops,
128},
129{
130	.name = "acp-i2s-hs",
131	.id = I2S_HS_INSTANCE,
132	.playback = {
133		.stream_name = "I2S HS Playback",
134		.rates = SNDRV_PCM_RATE_8000_96000,
135		.formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S8 |
136			   SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S32_LE,
137		.channels_min = 2,
138		.channels_max = 8,
139		.rate_min = 8000,
140		.rate_max = 96000,
141	},
142	.capture = {
143		.stream_name = "I2S HS Capture",
144		.rates = SNDRV_PCM_RATE_8000_48000,
145		.formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S8 |
146			   SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S32_LE,
147		.channels_min = 2,
148		.channels_max = 8,
149		.rate_min = 8000,
150		.rate_max = 48000,
151	},
152	.ops = &asoc_acp_cpu_dai_ops,
153},
154{
155	.name = "acp-pdm-dmic",
156	.id = DMIC_INSTANCE,
157	.capture = {
158		.rates = SNDRV_PCM_RATE_8000_48000,
159		.formats = SNDRV_PCM_FMTBIT_S32_LE,
160		.channels_min = 2,
161		.channels_max = 2,
162		.rate_min = 8000,
163		.rate_max = 48000,
164	},
165	.ops = &acp_dmic_dai_ops,
166},
167};
168
169static int acp6x_master_clock_generate(struct device *dev)
170{
171	int data = 0;
172	struct pci_dev *smn_dev;
173
174	smn_dev = pci_get_device(PCI_VENDOR_ID_AMD, HOST_BRIDGE_ID, NULL);
175	if (!smn_dev) {
176		dev_err(dev, "Failed to get host bridge device\n");
177		return -ENODEV;
178	}
179
180	smn_write(smn_dev, MP1_C2PMSG_93, 0);
181	smn_write(smn_dev, MP1_C2PMSG_85, 0xC4);
182	smn_write(smn_dev, MP1_C2PMSG_69, 0x4);
183	read_poll_timeout(smn_read, data, data, DELAY_US,
184			  ACP_TIMEOUT, false, smn_dev, MP1_C2PMSG_93);
185	return 0;
186}
187
188static int rembrandt_audio_probe(struct platform_device *pdev)
189{
190	struct device *dev = &pdev->dev;
191	struct acp_chip_info *chip;
192	struct acp_dev_data *adata;
193	struct resource *res;
194	u32 ret;
195
196	chip = dev_get_platdata(&pdev->dev);
197	if (!chip || !chip->base) {
198		dev_err(&pdev->dev, "ACP chip data is NULL\n");
199		return -ENODEV;
200	}
201
202	if (chip->acp_rev != ACP6X_DEV) {
203		dev_err(&pdev->dev, "Un-supported ACP Revision %d\n", chip->acp_rev);
204		return -ENODEV;
205	}
206
207	adata = devm_kzalloc(dev, sizeof(struct acp_dev_data), GFP_KERNEL);
208	if (!adata)
209		return -ENOMEM;
210
211	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "acp_mem");
212	if (!res) {
213		dev_err(&pdev->dev, "IORESOURCE_MEM FAILED\n");
214		return -ENODEV;
215	}
216
217	adata->acp_base = devm_ioremap(&pdev->dev, res->start, resource_size(res));
218	if (!adata->acp_base)
219		return -ENOMEM;
220
221	res = platform_get_resource_byname(pdev, IORESOURCE_IRQ, "acp_dai_irq");
222	if (!res) {
223		dev_err(&pdev->dev, "IORESOURCE_IRQ FAILED\n");
224		return -ENODEV;
225	}
226
227	adata->i2s_irq = res->start;
228	adata->dev = dev;
229	adata->dai_driver = acp_rmb_dai;
230	adata->num_dai = ARRAY_SIZE(acp_rmb_dai);
231	adata->rsrc = &rsrc;
232	adata->platform = REMBRANDT;
233	adata->flag = chip->flag;
234	adata->machines = snd_soc_acpi_amd_rmb_acp_machines;
235	acp_machine_select(adata);
236
237	dev_set_drvdata(dev, adata);
238
239	if (chip->flag != FLAG_AMD_LEGACY_ONLY_DMIC) {
240		ret = acp6x_master_clock_generate(dev);
241		if (ret)
242			return ret;
243	}
244	acp_enable_interrupts(adata);
245	acp_platform_register(dev);
246	pm_runtime_set_autosuspend_delay(&pdev->dev, ACP_SUSPEND_DELAY_MS);
247	pm_runtime_use_autosuspend(&pdev->dev);
248	pm_runtime_mark_last_busy(&pdev->dev);
249	pm_runtime_set_active(&pdev->dev);
250	pm_runtime_enable(&pdev->dev);
251	return 0;
252}
253
254static void rembrandt_audio_remove(struct platform_device *pdev)
255{
256	struct device *dev = &pdev->dev;
257	struct acp_dev_data *adata = dev_get_drvdata(dev);
258
259	acp_disable_interrupts(adata);
260	acp_platform_unregister(dev);
261	pm_runtime_disable(&pdev->dev);
262}
263
264static int __maybe_unused rmb_pcm_resume(struct device *dev)
265{
266	struct acp_dev_data *adata = dev_get_drvdata(dev);
267	struct acp_stream *stream;
268	struct snd_pcm_substream *substream;
269	snd_pcm_uframes_t buf_in_frames;
270	u64 buf_size;
271
272	if (adata->flag != FLAG_AMD_LEGACY_ONLY_DMIC)
273		acp6x_master_clock_generate(dev);
274
275	spin_lock(&adata->acp_lock);
276	list_for_each_entry(stream, &adata->stream_list, list) {
277		substream = stream->substream;
278		if (substream && substream->runtime) {
279			buf_in_frames = (substream->runtime->buffer_size);
280			buf_size = frames_to_bytes(substream->runtime, buf_in_frames);
281			config_pte_for_stream(adata, stream);
282			config_acp_dma(adata, stream, buf_size);
283			if (stream->dai_id)
284				restore_acp_i2s_params(substream, adata, stream);
285			else
286				restore_acp_pdm_params(substream, adata);
287		}
288	}
289	spin_unlock(&adata->acp_lock);
290	return 0;
291}
292
293static const struct dev_pm_ops rmb_dma_pm_ops = {
294	SET_SYSTEM_SLEEP_PM_OPS(NULL, rmb_pcm_resume)
295};
296
297static struct platform_driver rembrandt_driver = {
298	.probe = rembrandt_audio_probe,
299	.remove_new = rembrandt_audio_remove,
300	.driver = {
301		.name = "acp_asoc_rembrandt",
302		.pm = &rmb_dma_pm_ops,
303	},
304};
305
306module_platform_driver(rembrandt_driver);
307
308MODULE_DESCRIPTION("AMD ACP Rembrandt Driver");
309MODULE_IMPORT_NS(SND_SOC_ACP_COMMON);
310MODULE_LICENSE("Dual BSD/GPL");
311MODULE_ALIAS("platform:" DRV_NAME);
312