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) 2021 Advanced Micro Devices, Inc. All rights reserved. 7 * 8 * Author: Ajit Kumar Pandey <AjitKumar.Pandey@amd.com> 9 */ 10 11 #ifndef __AMD_ACP_H 12 #define __AMD_ACP_H 13 14 #include <sound/pcm.h> 15 #include <sound/soc.h> 16 #include <sound/soc-acpi.h> 17 #include <sound/soc-dai.h> 18 19 #include "chip_offset_byte.h" 20 21 #define ACP3X_DEV 3 22 #define ACP6X_DEV 6 23 24 #define DMIC_INSTANCE 0x00 25 #define I2S_SP_INSTANCE 0x01 26 #define I2S_BT_INSTANCE 0x02 27 #define I2S_HS_INSTANCE 0x03 28 29 #define MEM_WINDOW_START 0x4080000 30 31 #define ACP_I2S_REG_START 0x1242400 32 #define ACP_I2S_REG_END 0x1242810 33 #define ACP3x_I2STDM_REG_START 0x1242400 34 #define ACP3x_I2STDM_REG_END 0x1242410 35 #define ACP3x_BT_TDM_REG_START 0x1242800 36 #define ACP3x_BT_TDM_REG_END 0x1242810 37 38 #define THRESHOLD(bit, base) ((bit) + (base)) 39 #define I2S_RX_THRESHOLD(base) THRESHOLD(7, base) 40 #define I2S_TX_THRESHOLD(base) THRESHOLD(8, base) 41 #define BT_TX_THRESHOLD(base) THRESHOLD(6, base) 42 #define BT_RX_THRESHOLD(base) THRESHOLD(5, base) 43 #define HS_TX_THRESHOLD(base) THRESHOLD(4, base) 44 #define HS_RX_THRESHOLD(base) THRESHOLD(3, base) 45 46 #define ACP_SRAM_SP_PB_PTE_OFFSET 0x0 47 #define ACP_SRAM_SP_CP_PTE_OFFSET 0x100 48 #define ACP_SRAM_BT_PB_PTE_OFFSET 0x200 49 #define ACP_SRAM_BT_CP_PTE_OFFSET 0x300 50 #define ACP_SRAM_PDM_PTE_OFFSET 0x400 51 #define ACP_SRAM_HS_PB_PTE_OFFSET 0x500 52 #define ACP_SRAM_HS_CP_PTE_OFFSET 0x600 53 #define PAGE_SIZE_4K_ENABLE 0x2 54 55 #define I2S_SP_TX_MEM_WINDOW_START 0x4000000 56 #define I2S_SP_RX_MEM_WINDOW_START 0x4020000 57 #define I2S_BT_TX_MEM_WINDOW_START 0x4040000 58 #define I2S_BT_RX_MEM_WINDOW_START 0x4060000 59 #define I2S_HS_TX_MEM_WINDOW_START 0x40A0000 60 #define I2S_HS_RX_MEM_WINDOW_START 0x40C0000 61 62 #define SP_PB_FIFO_ADDR_OFFSET 0x500 63 #define SP_CAPT_FIFO_ADDR_OFFSET 0x700 64 #define BT_PB_FIFO_ADDR_OFFSET 0x900 65 #define BT_CAPT_FIFO_ADDR_OFFSET 0xB00 66 #define HS_PB_FIFO_ADDR_OFFSET 0xD00 67 #define HS_CAPT_FIFO_ADDR_OFFSET 0xF00 68 #define PLAYBACK_MIN_NUM_PERIODS 2 69 #define PLAYBACK_MAX_NUM_PERIODS 8 70 #define PLAYBACK_MAX_PERIOD_SIZE 8192 71 #define PLAYBACK_MIN_PERIOD_SIZE 1024 72 #define CAPTURE_MIN_NUM_PERIODS 2 73 #define CAPTURE_MAX_NUM_PERIODS 8 74 #define CAPTURE_MAX_PERIOD_SIZE 8192 75 #define CAPTURE_MIN_PERIOD_SIZE 1024 76 77 #define MAX_BUFFER 65536 78 #define MIN_BUFFER MAX_BUFFER 79 #define FIFO_SIZE 0x100 80 #define DMA_SIZE 0x40 81 #define FRM_LEN 0x100 82 83 #define ACP3x_ITER_IRER_SAMP_LEN_MASK 0x38 84 85 #define ACP_MAX_STREAM 8 86 87 #define TDM_ENABLE 1 88 #define TDM_DISABLE 0 89 90 #define SLOT_WIDTH_8 0x8 91 #define SLOT_WIDTH_16 0x10 92 #define SLOT_WIDTH_24 0x18 93 #define SLOT_WIDTH_32 0x20 94 95 #define ACP6X_PGFSM_CONTROL 0x1024 96 #define ACP6X_PGFSM_STATUS 0x1028 97 98 #define ACP_SOFT_RST_DONE_MASK 0x00010001 99 100 #define ACP_PGFSM_CNTL_POWER_ON_MASK 0x01 101 #define ACP_PGFSM_CNTL_POWER_OFF_MASK 0x00 102 #define ACP_PGFSM_STATUS_MASK 0x03 103 #define ACP_POWERED_ON 0x00 104 #define ACP_POWER_ON_IN_PROGRESS 0x01 105 #define ACP_POWERED_OFF 0x02 106 #define ACP_POWER_OFF_IN_PROGRESS 0x03 107 108 #define ACP_ERROR_MASK 0x20000000 109 #define ACP_EXT_INTR_STAT_CLEAR_MASK 0xffffffff 110 111 #define ACP_TIMEOUT 500 112 #define DELAY_US 5 113 #define ACP_SUSPEND_DELAY_MS 2000 114 115 #define PDM_DMA_STAT 0x10 116 #define PDM_DMA_INTR_MASK 0x10000 117 #define PDM_DEC_64 0x2 118 #define PDM_CLK_FREQ_MASK 0x07 119 #define PDM_MISC_CTRL_MASK 0x10 120 #define PDM_ENABLE 0x01 121 #define PDM_DISABLE 0x00 122 #define DMA_EN_MASK 0x02 123 #define DELAY_US 5 124 #define PDM_TIMEOUT 1000 125 #define ACP_REGION2_OFFSET 0x02000000 126 127 struct acp_chip_info { 128 char *name; /* Platform name */ 129 unsigned int acp_rev; /* ACP Revision id */ 130 void __iomem *base; /* ACP memory PCI base */ 131 struct platform_device *chip_pdev; 132 }; 133 134 struct acp_stream { 135 struct list_head list; 136 struct snd_pcm_substream *substream; 137 int irq_bit; 138 int dai_id; 139 int id; 140 int dir; 141 u64 bytescount; 142 u32 reg_offset; 143 u32 pte_offset; 144 u32 fifo_offset; 145 }; 146 147 struct acp_resource { 148 int offset; 149 int no_of_ctrls; 150 int irqp_used; 151 bool soc_mclk; 152 u32 irq_reg_offset; 153 u32 i2s_pin_cfg_offset; 154 int i2s_mode; 155 u64 scratch_reg_offset; 156 u64 sram_pte_offset; 157 }; 158 159 struct acp_dev_data { 160 char *name; 161 struct device *dev; 162 void __iomem *acp_base; 163 unsigned int i2s_irq; 164 165 bool tdm_mode; 166 /* SOC specific dais */ 167 struct snd_soc_dai_driver *dai_driver; 168 int num_dai; 169 170 struct list_head stream_list; 171 spinlock_t acp_lock; 172 173 struct snd_soc_acpi_mach *machines; 174 struct platform_device *mach_dev; 175 176 u32 bclk_div; 177 u32 lrclk_div; 178 179 struct acp_resource *rsrc; 180 u32 ch_mask; 181 u32 tdm_tx_fmt[3]; 182 u32 tdm_rx_fmt[3]; 183 u32 xfer_tx_resolution[3]; 184 u32 xfer_rx_resolution[3]; 185 }; 186 187 union acp_i2stdm_mstrclkgen { 188 struct { 189 u32 i2stdm_master_mode : 1; 190 u32 i2stdm_format_mode : 1; 191 u32 i2stdm_lrclk_div_val : 9; 192 u32 i2stdm_bclk_div_val : 11; 193 u32:10; 194 } bitfields, bits; 195 u32 u32_all; 196 }; 197 198 extern const struct snd_soc_dai_ops asoc_acp_cpu_dai_ops; 199 extern const struct snd_soc_dai_ops acp_dmic_dai_ops; 200 201 int acp_platform_register(struct device *dev); 202 int acp_platform_unregister(struct device *dev); 203 204 int acp_machine_select(struct acp_dev_data *adata); 205 206 int smn_read(struct pci_dev *dev, u32 smn_addr); 207 int smn_write(struct pci_dev *dev, u32 smn_addr, u32 data); 208 209 int acp_init(struct acp_chip_info *chip); 210 int acp_deinit(void __iomem *base); 211 void acp_enable_interrupts(struct acp_dev_data *adata); 212 void acp_disable_interrupts(struct acp_dev_data *adata); 213 /* Machine configuration */ 214 int snd_amd_acp_find_config(struct pci_dev *pci); 215 216 void config_pte_for_stream(struct acp_dev_data *adata, struct acp_stream *stream); 217 void config_acp_dma(struct acp_dev_data *adata, struct acp_stream *stream, int size); 218 void restore_acp_pdm_params(struct snd_pcm_substream *substream, 219 struct acp_dev_data *adata); 220 221 int restore_acp_i2s_params(struct snd_pcm_substream *substream, 222 struct acp_dev_data *adata, struct acp_stream *stream); 223 224 static inline u64 acp_get_byte_count(struct acp_dev_data *adata, int dai_id, int direction) 225 { 226 u64 byte_count = 0, low = 0, high = 0; 227 228 if (direction == SNDRV_PCM_STREAM_PLAYBACK) { 229 switch (dai_id) { 230 case I2S_BT_INSTANCE: 231 high = readl(adata->acp_base + ACP_BT_TX_LINEARPOSITIONCNTR_HIGH); 232 low = readl(adata->acp_base + ACP_BT_TX_LINEARPOSITIONCNTR_LOW); 233 break; 234 case I2S_SP_INSTANCE: 235 high = readl(adata->acp_base + ACP_I2S_TX_LINEARPOSITIONCNTR_HIGH); 236 low = readl(adata->acp_base + ACP_I2S_TX_LINEARPOSITIONCNTR_LOW); 237 break; 238 case I2S_HS_INSTANCE: 239 high = readl(adata->acp_base + ACP_HS_TX_LINEARPOSITIONCNTR_HIGH); 240 low = readl(adata->acp_base + ACP_HS_TX_LINEARPOSITIONCNTR_LOW); 241 break; 242 default: 243 dev_err(adata->dev, "Invalid dai id %x\n", dai_id); 244 goto POINTER_RETURN_BYTES; 245 } 246 } else { 247 switch (dai_id) { 248 case I2S_BT_INSTANCE: 249 high = readl(adata->acp_base + ACP_BT_RX_LINEARPOSITIONCNTR_HIGH); 250 low = readl(adata->acp_base + ACP_BT_RX_LINEARPOSITIONCNTR_LOW); 251 break; 252 case I2S_SP_INSTANCE: 253 high = readl(adata->acp_base + ACP_I2S_RX_LINEARPOSITIONCNTR_HIGH); 254 low = readl(adata->acp_base + ACP_I2S_RX_LINEARPOSITIONCNTR_LOW); 255 break; 256 case I2S_HS_INSTANCE: 257 high = readl(adata->acp_base + ACP_HS_RX_LINEARPOSITIONCNTR_HIGH); 258 low = readl(adata->acp_base + ACP_HS_RX_LINEARPOSITIONCNTR_LOW); 259 break; 260 case DMIC_INSTANCE: 261 high = readl(adata->acp_base + ACP_WOV_RX_LINEARPOSITIONCNTR_HIGH); 262 low = readl(adata->acp_base + ACP_WOV_RX_LINEARPOSITIONCNTR_LOW); 263 break; 264 default: 265 dev_err(adata->dev, "Invalid dai id %x\n", dai_id); 266 goto POINTER_RETURN_BYTES; 267 } 268 } 269 /* Get 64 bit value from two 32 bit registers */ 270 byte_count = (high << 32) | low; 271 272 POINTER_RETURN_BYTES: 273 return byte_count; 274 } 275 276 static inline void acp_set_i2s_clk(struct acp_dev_data *adata, int dai_id) 277 { 278 union acp_i2stdm_mstrclkgen mclkgen; 279 u32 master_reg; 280 281 switch (dai_id) { 282 case I2S_SP_INSTANCE: 283 master_reg = ACP_I2STDM0_MSTRCLKGEN; 284 break; 285 case I2S_BT_INSTANCE: 286 master_reg = ACP_I2STDM1_MSTRCLKGEN; 287 break; 288 case I2S_HS_INSTANCE: 289 master_reg = ACP_I2STDM2_MSTRCLKGEN; 290 break; 291 default: 292 master_reg = ACP_I2STDM0_MSTRCLKGEN; 293 break; 294 } 295 296 mclkgen.bits.i2stdm_master_mode = 0x1; 297 mclkgen.bits.i2stdm_format_mode = 0x00; 298 299 mclkgen.bits.i2stdm_bclk_div_val = adata->bclk_div; 300 mclkgen.bits.i2stdm_lrclk_div_val = adata->lrclk_div; 301 writel(mclkgen.u32_all, adata->acp_base + master_reg); 302 } 303 #endif 304