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 .i2s_pin_cfg_offset = 0x1440, 43 .i2s_mode = 0x0a, 44 .scratch_reg_offset = 0x12800, 45 .sram_pte_offset = 0x03802800, 46 }; 47 48 static struct snd_soc_acpi_codecs amp_rt1019 = { 49 .num_codecs = 1, 50 .codecs = {"10EC1019"} 51 }; 52 53 static struct snd_soc_acpi_codecs amp_max = { 54 .num_codecs = 1, 55 .codecs = {"MX98360A"} 56 }; 57 58 static 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 = &_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 = &_rt1019, 74 }, 75 {}, 76 }; 77 78 static 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 }; 168 169 static 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 } 187 188 static 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 } 253 254 static 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 } 263 264 static 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 } 292 293 static const struct dev_pm_ops rmb_dma_pm_ops = { 294 SET_SYSTEM_SLEEP_PM_OPS(NULL, rmb_pcm_resume) 295 }; 296 297 static 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 }; 305 306 module_platform_driver(rembrandt_driver); 307 308 MODULE_DESCRIPTION("AMD ACP Rembrandt Driver"); 309 MODULE_IMPORT_NS(SND_SOC_ACP_COMMON); 310 MODULE_LICENSE("Dual BSD/GPL"); 311 MODULE_ALIAS("platform:" DRV_NAME); 312