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
27 #define DRV_NAME "acp_asoc_rembrandt"
28
29 #define MP1_C2PMSG_69 0x3B10A14
30 #define MP1_C2PMSG_85 0x3B10A54
31 #define MP1_C2PMSG_93 0x3B10A74
32 #define HOST_BRIDGE_ID 0x14B5
33
34 static struct acp_resource rsrc = {
35 .offset = 0,
36 .no_of_ctrls = 2,
37 .irqp_used = 1,
38 .soc_mclk = true,
39 .irq_reg_offset = 0x1a00,
40 .i2s_pin_cfg_offset = 0x1440,
41 .i2s_mode = 0x0a,
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 = &_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 = &_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
acp6x_master_clock_generate(struct device * dev)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
rembrandt_audio_probe(struct platform_device * pdev)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
193 chip = dev_get_platdata(&pdev->dev);
194 if (!chip || !chip->base) {
195 dev_err(&pdev->dev, "ACP chip data is NULL\n");
196 return -ENODEV;
197 }
198
199 if (chip->acp_rev != ACP6X_DEV) {
200 dev_err(&pdev->dev, "Un-supported ACP Revision %d\n", chip->acp_rev);
201 return -ENODEV;
202 }
203
204 adata = devm_kzalloc(dev, sizeof(struct acp_dev_data), GFP_KERNEL);
205 if (!adata)
206 return -ENOMEM;
207
208 res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "acp_mem");
209 if (!res) {
210 dev_err(&pdev->dev, "IORESOURCE_MEM FAILED\n");
211 return -ENODEV;
212 }
213
214 adata->acp_base = devm_ioremap(&pdev->dev, res->start, resource_size(res));
215 if (!adata->acp_base)
216 return -ENOMEM;
217
218 res = platform_get_resource_byname(pdev, IORESOURCE_IRQ, "acp_dai_irq");
219 if (!res) {
220 dev_err(&pdev->dev, "IORESOURCE_IRQ FAILED\n");
221 return -ENODEV;
222 }
223
224 adata->i2s_irq = res->start;
225 adata->dev = dev;
226 adata->dai_driver = acp_rmb_dai;
227 adata->num_dai = ARRAY_SIZE(acp_rmb_dai);
228 adata->rsrc = &rsrc;
229
230 adata->machines = snd_soc_acpi_amd_rmb_acp_machines;
231 acp_machine_select(adata);
232
233 dev_set_drvdata(dev, adata);
234 acp6x_master_clock_generate(dev);
235 acp_enable_interrupts(adata);
236 acp_platform_register(dev);
237 pm_runtime_set_autosuspend_delay(&pdev->dev, ACP_SUSPEND_DELAY_MS);
238 pm_runtime_use_autosuspend(&pdev->dev);
239 pm_runtime_mark_last_busy(&pdev->dev);
240 pm_runtime_set_active(&pdev->dev);
241 pm_runtime_enable(&pdev->dev);
242 return 0;
243 }
244
rembrandt_audio_remove(struct platform_device * pdev)245 static void rembrandt_audio_remove(struct platform_device *pdev)
246 {
247 struct device *dev = &pdev->dev;
248 struct acp_dev_data *adata = dev_get_drvdata(dev);
249
250 acp_disable_interrupts(adata);
251 acp_platform_unregister(dev);
252 pm_runtime_disable(&pdev->dev);
253 }
254
rmb_pcm_resume(struct device * dev)255 static int __maybe_unused rmb_pcm_resume(struct device *dev)
256 {
257 struct acp_dev_data *adata = dev_get_drvdata(dev);
258 struct acp_stream *stream;
259 struct snd_pcm_substream *substream;
260 snd_pcm_uframes_t buf_in_frames;
261 u64 buf_size;
262
263 acp6x_master_clock_generate(dev);
264 spin_lock(&adata->acp_lock);
265 list_for_each_entry(stream, &adata->stream_list, list) {
266 substream = stream->substream;
267 if (substream && substream->runtime) {
268 buf_in_frames = (substream->runtime->buffer_size);
269 buf_size = frames_to_bytes(substream->runtime, buf_in_frames);
270 config_pte_for_stream(adata, stream);
271 config_acp_dma(adata, stream, buf_size);
272 if (stream->dai_id)
273 restore_acp_i2s_params(substream, adata, stream);
274 else
275 restore_acp_pdm_params(substream, adata);
276 }
277 }
278 spin_unlock(&adata->acp_lock);
279 return 0;
280 }
281
282 static const struct dev_pm_ops rmb_dma_pm_ops = {
283 SET_SYSTEM_SLEEP_PM_OPS(NULL, rmb_pcm_resume)
284 };
285
286 static struct platform_driver rembrandt_driver = {
287 .probe = rembrandt_audio_probe,
288 .remove_new = rembrandt_audio_remove,
289 .driver = {
290 .name = "acp_asoc_rembrandt",
291 .pm = &rmb_dma_pm_ops,
292 },
293 };
294
295 module_platform_driver(rembrandt_driver);
296
297 MODULE_DESCRIPTION("AMD ACP Rembrandt Driver");
298 MODULE_IMPORT_NS(SND_SOC_ACP_COMMON);
299 MODULE_LICENSE("Dual BSD/GPL");
300 MODULE_ALIAS("platform:" DRV_NAME);
301