sound/soc/amd/acp/acp70.c

   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
  28 #define CLK7_CLK0_DFS_CNTL_N1           0X0006C1A4
  29 #define CLK0_DIVIDER                    0X19
  30
  31 static struct acp_resource rsrc = {
  32         .offset = 0,
  33         .no_of_ctrls = 2,
  34         .irqp_used = 1,
  35         .soc_mclk = true,
  36         .irq_reg_offset = 0x1a00,
  37         .scratch_reg_offset = 0x10000,
  38         .sram_pte_offset = 0x03800000,
  39 };
  40
  41 static struct snd_soc_acpi_mach snd_soc_acpi_amd_acp70_acp_machines[] = {
  42         {
  43                 .id = "AMDI0029",
  44                 .drv_name = "acp70-acp",
  45         },
  46         {},
  47 };
  48
  49 static struct snd_soc_dai_driver acp70_dai[] = {
  50 {
  51         .name = "acp-i2s-sp",
  52         .id = I2S_SP_INSTANCE,
  53         .playback = {
  54                 .stream_name = "I2S SP Playback",
  55                 .rates = SNDRV_PCM_RATE_8000_192000,
  56                 .formats = SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S8 |
  57                            SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE,
  58                 .channels_min = 2,
  59                 .channels_max = 32,
  60                 .rate_min = 8000,
  61                 .rate_max = 192000,
  62         },
  63         .capture = {
  64                 .stream_name = "I2S SP Capture",
  65                 .rates = SNDRV_PCM_RATE_8000_192000,
  66                 .formats = SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S8 |
  67                            SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE,
  68                 .channels_min = 2,
  69                 .channels_max = 32,
  70                 .rate_min = 8000,
  71                 .rate_max = 192000,
  72         },
  73         .ops = &asoc_acp_cpu_dai_ops,
  74 },
  75 {
  76         .name = "acp-i2s-bt",
  77         .id = I2S_BT_INSTANCE,
  78         .playback = {
  79                 .stream_name = "I2S BT Playback",
  80                 .rates = SNDRV_PCM_RATE_8000_192000,
  81                 .formats = SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S8 |
  82                            SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE,
  83                 .channels_min = 2,
  84                 .channels_max = 32,
  85                 .rate_min = 8000,
  86                 .rate_max = 192000,
  87         },
  88         .capture = {
  89                 .stream_name = "I2S BT Capture",
  90                 .rates = SNDRV_PCM_RATE_8000_192000,
  91                 .formats = SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S8 |
  92                            SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE,
  93                 .channels_min = 2,
  94                 .channels_max = 32,
  95                 .rate_min = 8000,
  96                 .rate_max = 192000,
  97         },
  98         .ops = &asoc_acp_cpu_dai_ops,
  99 },
 100 {
 101         .name = "acp-i2s-hs",
 102         .id = I2S_HS_INSTANCE,
 103         .playback = {
 104                 .stream_name = "I2S HS Playback",
 105                 .rates = SNDRV_PCM_RATE_8000_192000,
 106                 .formats = SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S8 |
 107                            SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE,
 108                 .channels_min = 2,
 109                 .channels_max = 32,
 110                 .rate_min = 8000,
 111                 .rate_max = 192000,
 112         },
 113         .capture = {
 114                 .stream_name = "I2S HS Capture",
 115                 .rates = SNDRV_PCM_RATE_8000_192000,
 116                 .formats = SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S8 |
 117                            SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE,
 118                 .channels_min = 2,
 119                 .channels_max = 32,
 120                 .rate_min = 8000,
 121                 .rate_max = 192000,
 122         },
 123         .ops = &asoc_acp_cpu_dai_ops,
 124 },
 125 {
 126         .name = "acp-pdm-dmic",
 127         .id = DMIC_INSTANCE,
 128         .capture = {
 129                 .rates = SNDRV_PCM_RATE_8000_48000,
 130                 .formats = SNDRV_PCM_FMTBIT_S32_LE,
 131                 .channels_min = 2,
 132                 .channels_max = 2,
 133                 .rate_min = 8000,
 134                 .rate_max = 48000,
 135         },
 136         .ops = &acp_dmic_dai_ops,
 137 },
 138 };
 139
 140 static int acp70_i2s_master_clock_generate(struct acp_dev_data *adata)
 141 {
 142         struct pci_dev *smn_dev;
 143         u32 device_id;
 144
 145         if (adata->acp_rev == ACP70_PCI_ID)
 146                 device_id = 0x1507;
 147         else if (adata->acp_rev == ACP71_PCI_ID)
 148                 device_id = 0x1122;
 149         else
 150                 return -ENODEV;
 151
 152         smn_dev = pci_get_device(PCI_VENDOR_ID_AMD, device_id, NULL);
 153
 154         if (!smn_dev)
 155                 return -ENODEV;
 156
 157         /* Set clk7 DFS clock divider register value to get mclk as 196.608MHz*/
 158         smn_write(smn_dev, CLK7_CLK0_DFS_CNTL_N1, CLK0_DIVIDER);
 159
 160         return 0;
 161 }
 162
 163 static int acp_acp70_audio_probe(struct platform_device *pdev)
 164 {
 165         struct device *dev = &pdev->dev;
 166         struct acp_chip_info *chip;
 167         struct acp_dev_data *adata;
 168         struct resource *res;
 169         int ret;
 170
 171         chip = dev_get_platdata(&pdev->dev);
 172         if (!chip || !chip->base) {
 173                 dev_err(&pdev->dev, "ACP chip data is NULL\n");
 174                 return -ENODEV;
 175         }
 176
 177         switch (chip->acp_rev) {
 178         case ACP70_PCI_ID:
 179         case ACP71_PCI_ID:
 180                 break;
 181         default:
 182                 dev_err(&pdev->dev, "Un-supported ACP Revision %d\n", chip->acp_rev);
 183                 return -ENODEV;
 184         }
 185
 186         adata = devm_kzalloc(dev, sizeof(struct acp_dev_data), GFP_KERNEL);
 187         if (!adata)
 188                 return -ENOMEM;
 189
 190         res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "acp_mem");
 191         if (!res) {
 192                 dev_err(&pdev->dev, "IORESOURCE_MEM FAILED\n");
 193                 return -ENODEV;
 194         }
 195
 196         adata->acp_base = devm_ioremap(&pdev->dev, res->start, resource_size(res));
 197         if (!adata->acp_base)
 198                 return -ENOMEM;
 199
 200         res = platform_get_resource_byname(pdev, IORESOURCE_IRQ, "acp_dai_irq");
 201         if (!res) {
 202                 dev_err(&pdev->dev, "IORESOURCE_IRQ FAILED\n");
 203                 return -ENODEV;
 204         }
 205
 206         adata->i2s_irq = res->start;
 207         adata->dev = dev;
 208         adata->dai_driver = acp70_dai;
 209         adata->num_dai = ARRAY_SIZE(acp70_dai);
 210         adata->rsrc = &rsrc;
 211         adata->machines = snd_soc_acpi_amd_acp70_acp_machines;
 212         adata->acp_rev = chip->acp_rev;
 213         adata->flag = chip->flag;
 214         acp_machine_select(adata);
 215
 216         dev_set_drvdata(dev, adata);
 217
 218         ret = acp70_i2s_master_clock_generate(adata);
 219         if (ret) {
 220                 dev_err(&pdev->dev, "Failed to set I2S master clock as 196.608MHz\n");
 221                 return ret;
 222         }
 223         acp_enable_interrupts(adata);
 224         acp_platform_register(dev);
 225         pm_runtime_set_autosuspend_delay(&pdev->dev, ACP_SUSPEND_DELAY_MS);
 226         pm_runtime_use_autosuspend(&pdev->dev);
 227         pm_runtime_mark_last_busy(&pdev->dev);
 228         pm_runtime_set_active(&pdev->dev);
 229         pm_runtime_enable(&pdev->dev);
 230         return 0;
 231 }
 232
 233 static void acp_acp70_audio_remove(struct platform_device *pdev)
 234 {
 235         struct device *dev = &pdev->dev;
 236         struct acp_dev_data *adata = dev_get_drvdata(dev);
 237
 238         acp_disable_interrupts(adata);
 239         acp_platform_unregister(dev);
 240         pm_runtime_disable(&pdev->dev);
 241 }
 242
 243 static int __maybe_unused acp70_pcm_resume(struct device *dev)
 244 {
 245         struct acp_dev_data *adata = dev_get_drvdata(dev);
 246         struct acp_stream *stream;
 247         struct snd_pcm_substream *substream;
 248         snd_pcm_uframes_t buf_in_frames;
 249         u64 buf_size;
 250
 251         spin_lock(&adata->acp_lock);
 252         list_for_each_entry(stream, &adata->stream_list, list) {
 253                 if (stream) {
 254                         substream = stream->substream;
 255                         if (substream && substream->runtime) {
 256                                 buf_in_frames = (substream->runtime->buffer_size);
 257                                 buf_size = frames_to_bytes(substream->runtime, buf_in_frames);
 258                                 config_pte_for_stream(adata, stream);
 259                                 config_acp_dma(adata, stream, buf_size);
 260                                 if (stream->dai_id)
 261                                         restore_acp_i2s_params(substream, adata, stream);
 262                                 else
 263                                         restore_acp_pdm_params(substream, adata);
 264                         }
 265                 }
 266         }
 267         spin_unlock(&adata->acp_lock);
 268         return 0;
 269 }
 270
 271 static const struct dev_pm_ops acp70_dma_pm_ops = {
 272         SET_SYSTEM_SLEEP_PM_OPS(NULL, acp70_pcm_resume)
 273 };
 274
 275 static struct platform_driver acp70_driver = {
 276         .probe = acp_acp70_audio_probe,
 277         .remove = acp_acp70_audio_remove,
 278         .driver = {
 279                 .name = "acp_asoc_acp70",
 280                 .pm = &acp70_dma_pm_ops,
 281         },
 282 };
 283
 284 module_platform_driver(acp70_driver);
 285
 286 MODULE_DESCRIPTION("AMD ACP ACP70 Driver");
 287 MODULE_IMPORT_NS("SND_SOC_ACP_COMMON");
 288 MODULE_LICENSE("Dual BSD/GPL");
 289 MODULE_ALIAS("platform:" DRV_NAME);