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 #include <asm/amd_node.h> 27 28 #define DRV_NAME "acp_asoc_acp70" 29 30 #define CLK7_CLK0_DFS_CNTL_N1 0X0006C1A4 31 #define CLK0_DIVIDER 0X19 32 33 static struct snd_soc_dai_driver acp70_dai[] = { 34 { 35 .name = "acp-i2s-sp", 36 .id = I2S_SP_INSTANCE, 37 .playback = { 38 .stream_name = "I2S SP Playback", 39 .rates = SNDRV_PCM_RATE_8000_192000, 40 .formats = SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S8 | 41 SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE, 42 .channels_min = 2, 43 .channels_max = 32, 44 .rate_min = 8000, 45 .rate_max = 192000, 46 }, 47 .capture = { 48 .stream_name = "I2S SP Capture", 49 .rates = SNDRV_PCM_RATE_8000_192000, 50 .formats = SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S8 | 51 SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE, 52 .channels_min = 2, 53 .channels_max = 32, 54 .rate_min = 8000, 55 .rate_max = 192000, 56 }, 57 .ops = &asoc_acp_cpu_dai_ops, 58 }, 59 { 60 .name = "acp-i2s-bt", 61 .id = I2S_BT_INSTANCE, 62 .playback = { 63 .stream_name = "I2S BT Playback", 64 .rates = SNDRV_PCM_RATE_8000_192000, 65 .formats = SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S8 | 66 SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE, 67 .channels_min = 2, 68 .channels_max = 32, 69 .rate_min = 8000, 70 .rate_max = 192000, 71 }, 72 .capture = { 73 .stream_name = "I2S BT Capture", 74 .rates = SNDRV_PCM_RATE_8000_192000, 75 .formats = SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S8 | 76 SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE, 77 .channels_min = 2, 78 .channels_max = 32, 79 .rate_min = 8000, 80 .rate_max = 192000, 81 }, 82 .ops = &asoc_acp_cpu_dai_ops, 83 }, 84 { 85 .name = "acp-i2s-hs", 86 .id = I2S_HS_INSTANCE, 87 .playback = { 88 .stream_name = "I2S HS Playback", 89 .rates = SNDRV_PCM_RATE_8000_192000, 90 .formats = SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S8 | 91 SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE, 92 .channels_min = 2, 93 .channels_max = 32, 94 .rate_min = 8000, 95 .rate_max = 192000, 96 }, 97 .capture = { 98 .stream_name = "I2S HS Capture", 99 .rates = SNDRV_PCM_RATE_8000_192000, 100 .formats = SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S8 | 101 SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE, 102 .channels_min = 2, 103 .channels_max = 32, 104 .rate_min = 8000, 105 .rate_max = 192000, 106 }, 107 .ops = &asoc_acp_cpu_dai_ops, 108 }, 109 { 110 .name = "acp-pdm-dmic", 111 .id = DMIC_INSTANCE, 112 .capture = { 113 .rates = SNDRV_PCM_RATE_8000_48000, 114 .formats = SNDRV_PCM_FMTBIT_S32_LE, 115 .channels_min = 2, 116 .channels_max = 2, 117 .rate_min = 8000, 118 .rate_max = 48000, 119 }, 120 .ops = &acp_dmic_dai_ops, 121 }, 122 }; 123 124 static int acp_acp70_audio_probe(struct platform_device *pdev) 125 { 126 struct device *dev = &pdev->dev; 127 struct acp_chip_info *chip; 128 int ret; 129 130 chip = dev_get_platdata(&pdev->dev); 131 if (!chip || !chip->base) { 132 dev_err(&pdev->dev, "ACP chip data is NULL\n"); 133 return -ENODEV; 134 } 135 136 switch (chip->acp_rev) { 137 case ACP70_PCI_ID: 138 case ACP71_PCI_ID: 139 break; 140 default: 141 dev_err(&pdev->dev, "Un-supported ACP Revision %d\n", chip->acp_rev); 142 return -ENODEV; 143 } 144 145 chip->dev = dev; 146 chip->dai_driver = acp70_dai; 147 chip->num_dai = ARRAY_SIZE(acp70_dai); 148 149 /* Set clk7 DFS clock divider register value to get mclk as 196.608MHz*/ 150 ret = amd_smn_write(0, CLK7_CLK0_DFS_CNTL_N1, CLK0_DIVIDER); 151 if (ret) { 152 dev_err(&pdev->dev, "Failed to set I2S master clock as 196.608MHz\n"); 153 return ret; 154 } 155 ret = acp_hw_en_interrupts(chip); 156 if (ret) { 157 dev_err(dev, "ACP en-interrupts failed\n"); 158 return ret; 159 } 160 acp_platform_register(dev); 161 pm_runtime_set_autosuspend_delay(&pdev->dev, ACP_SUSPEND_DELAY_MS); 162 pm_runtime_use_autosuspend(&pdev->dev); 163 pm_runtime_mark_last_busy(&pdev->dev); 164 pm_runtime_set_active(&pdev->dev); 165 pm_runtime_enable(&pdev->dev); 166 return 0; 167 } 168 169 static void acp_acp70_audio_remove(struct platform_device *pdev) 170 { 171 struct device *dev = &pdev->dev; 172 struct acp_chip_info *chip = dev_get_platdata(dev); 173 int ret; 174 175 ret = acp_hw_dis_interrupts(chip); 176 if (ret) 177 dev_err(dev, "ACP dis-interrupts failed\n"); 178 179 acp_platform_unregister(dev); 180 pm_runtime_disable(&pdev->dev); 181 } 182 183 static int acp70_pcm_resume(struct device *dev) 184 { 185 struct acp_chip_info *chip = dev_get_platdata(dev); 186 struct acp_stream *stream; 187 struct snd_pcm_substream *substream; 188 snd_pcm_uframes_t buf_in_frames; 189 u64 buf_size; 190 191 spin_lock(&chip->acp_lock); 192 list_for_each_entry(stream, &chip->stream_list, list) { 193 substream = stream->substream; 194 if (substream && substream->runtime) { 195 buf_in_frames = (substream->runtime->buffer_size); 196 buf_size = frames_to_bytes(substream->runtime, buf_in_frames); 197 config_pte_for_stream(chip, stream); 198 config_acp_dma(chip, stream, buf_size); 199 if (stream->dai_id) 200 restore_acp_i2s_params(substream, chip, stream); 201 else 202 restore_acp_pdm_params(substream, chip); 203 } 204 } 205 spin_unlock(&chip->acp_lock); 206 return 0; 207 } 208 209 static const struct dev_pm_ops acp70_dma_pm_ops = { 210 SYSTEM_SLEEP_PM_OPS(NULL, acp70_pcm_resume) 211 }; 212 213 static struct platform_driver acp70_driver = { 214 .probe = acp_acp70_audio_probe, 215 .remove = acp_acp70_audio_remove, 216 .driver = { 217 .name = "acp_asoc_acp70", 218 .pm = pm_ptr(&acp70_dma_pm_ops), 219 }, 220 }; 221 222 module_platform_driver(acp70_driver); 223 224 MODULE_DESCRIPTION("AMD ACP ACP70 Driver"); 225 MODULE_IMPORT_NS("SND_SOC_ACP_COMMON"); 226 MODULE_LICENSE("Dual BSD/GPL"); 227 MODULE_ALIAS("platform:" DRV_NAME); 228