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 .probe = &asoc_acp_i2s_probe, 102 }, 103 { 104 .name = "acp-i2s-bt", 105 .id = I2S_BT_INSTANCE, 106 .playback = { 107 .stream_name = "I2S BT Playback", 108 .rates = SNDRV_PCM_RATE_8000_96000, 109 .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S8 | 110 SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S32_LE, 111 .channels_min = 2, 112 .channels_max = 8, 113 .rate_min = 8000, 114 .rate_max = 96000, 115 }, 116 .capture = { 117 .stream_name = "I2S BT Capture", 118 .rates = SNDRV_PCM_RATE_8000_48000, 119 .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S8 | 120 SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S32_LE, 121 .channels_min = 2, 122 .channels_max = 2, 123 .rate_min = 8000, 124 .rate_max = 48000, 125 }, 126 .ops = &asoc_acp_cpu_dai_ops, 127 .probe = &asoc_acp_i2s_probe, 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 .probe = &asoc_acp_i2s_probe, 154 }, 155 { 156 .name = "acp-pdm-dmic", 157 .id = DMIC_INSTANCE, 158 .capture = { 159 .rates = SNDRV_PCM_RATE_8000_48000, 160 .formats = SNDRV_PCM_FMTBIT_S32_LE, 161 .channels_min = 2, 162 .channels_max = 2, 163 .rate_min = 8000, 164 .rate_max = 48000, 165 }, 166 .ops = &acp_dmic_dai_ops, 167 }, 168 }; 169 170 static int acp6x_master_clock_generate(struct device *dev) 171 { 172 int data = 0; 173 struct pci_dev *smn_dev; 174 175 smn_dev = pci_get_device(PCI_VENDOR_ID_AMD, HOST_BRIDGE_ID, NULL); 176 if (!smn_dev) { 177 dev_err(dev, "Failed to get host bridge device\n"); 178 return -ENODEV; 179 } 180 181 smn_write(smn_dev, MP1_C2PMSG_93, 0); 182 smn_write(smn_dev, MP1_C2PMSG_85, 0xC4); 183 smn_write(smn_dev, MP1_C2PMSG_69, 0x4); 184 read_poll_timeout(smn_read, data, data, DELAY_US, 185 ACP_TIMEOUT, false, smn_dev, MP1_C2PMSG_93); 186 return 0; 187 } 188 189 static int rembrandt_audio_probe(struct platform_device *pdev) 190 { 191 struct device *dev = &pdev->dev; 192 struct acp_chip_info *chip; 193 struct acp_dev_data *adata; 194 struct resource *res; 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; 232 233 adata->machines = snd_soc_acpi_amd_rmb_acp_machines; 234 acp_machine_select(adata); 235 236 dev_set_drvdata(dev, adata); 237 acp6x_master_clock_generate(dev); 238 acp_enable_interrupts(adata); 239 acp_platform_register(dev); 240 pm_runtime_set_autosuspend_delay(&pdev->dev, ACP_SUSPEND_DELAY_MS); 241 pm_runtime_use_autosuspend(&pdev->dev); 242 pm_runtime_mark_last_busy(&pdev->dev); 243 pm_runtime_set_active(&pdev->dev); 244 pm_runtime_enable(&pdev->dev); 245 return 0; 246 } 247 248 static void rembrandt_audio_remove(struct platform_device *pdev) 249 { 250 struct device *dev = &pdev->dev; 251 struct acp_dev_data *adata = dev_get_drvdata(dev); 252 253 acp_disable_interrupts(adata); 254 acp_platform_unregister(dev); 255 pm_runtime_disable(&pdev->dev); 256 } 257 258 static int __maybe_unused rmb_pcm_resume(struct device *dev) 259 { 260 struct acp_dev_data *adata = dev_get_drvdata(dev); 261 struct acp_stream *stream; 262 struct snd_pcm_substream *substream; 263 snd_pcm_uframes_t buf_in_frames; 264 u64 buf_size; 265 266 acp6x_master_clock_generate(dev); 267 spin_lock(&adata->acp_lock); 268 list_for_each_entry(stream, &adata->stream_list, list) { 269 substream = stream->substream; 270 if (substream && substream->runtime) { 271 buf_in_frames = (substream->runtime->buffer_size); 272 buf_size = frames_to_bytes(substream->runtime, buf_in_frames); 273 config_pte_for_stream(adata, stream); 274 config_acp_dma(adata, stream, buf_size); 275 if (stream->dai_id) 276 restore_acp_i2s_params(substream, adata, stream); 277 else 278 restore_acp_pdm_params(substream, adata); 279 } 280 } 281 spin_unlock(&adata->acp_lock); 282 return 0; 283 } 284 285 static const struct dev_pm_ops rmb_dma_pm_ops = { 286 SET_SYSTEM_SLEEP_PM_OPS(NULL, rmb_pcm_resume) 287 }; 288 289 static struct platform_driver rembrandt_driver = { 290 .probe = rembrandt_audio_probe, 291 .remove_new = rembrandt_audio_remove, 292 .driver = { 293 .name = "acp_asoc_rembrandt", 294 .pm = &rmb_dma_pm_ops, 295 }, 296 }; 297 298 module_platform_driver(rembrandt_driver); 299 300 MODULE_DESCRIPTION("AMD ACP Rembrandt Driver"); 301 MODULE_IMPORT_NS(SND_SOC_ACP_COMMON); 302 MODULE_LICENSE("Dual BSD/GPL"); 303 MODULE_ALIAS("platform:" DRV_NAME); 304