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 = &_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 }; 166 167 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