1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 /* 3 * Copyright (c) 2010-2011,2013-2015,2020 The Linux Foundation. All rights reserved. 4 * 5 * lpass.h - Definitions for the QTi LPASS 6 */ 7 8 #ifndef __LPASS_H__ 9 #define __LPASS_H__ 10 11 #include <linux/clk.h> 12 #include <linux/compiler.h> 13 #include <linux/platform_device.h> 14 #include <linux/regmap.h> 15 #include <dt-bindings/sound/qcom,lpass.h> 16 #include "lpass-hdmi.h" 17 18 #define LPASS_AHBIX_CLOCK_FREQUENCY 131072000 19 #define LPASS_MAX_PORTS (LPASS_CDC_DMA_VA_TX8 + 1) 20 #define LPASS_MAX_MI2S_PORTS (8) 21 #define LPASS_MAX_DMA_CHANNELS (8) 22 #define LPASS_MAX_HDMI_DMA_CHANNELS (4) 23 #define LPASS_MAX_CDC_DMA_CHANNELS (8) 24 #define LPASS_MAX_VA_CDC_DMA_CHANNELS (8) 25 #define LPASS_CDC_DMA_INTF_ONE_CHANNEL (0x01) 26 #define LPASS_CDC_DMA_INTF_TWO_CHANNEL (0x03) 27 #define LPASS_CDC_DMA_INTF_FOUR_CHANNEL (0x0F) 28 #define LPASS_CDC_DMA_INTF_SIX_CHANNEL (0x3F) 29 #define LPASS_CDC_DMA_INTF_EIGHT_CHANNEL (0xFF) 30 31 #define LPASS_ACTIVE_PDS (4) 32 #define LPASS_PROXY_PDS (8) 33 34 #define QCOM_REGMAP_FIELD_ALLOC(d, m, f, mf) \ 35 do { \ 36 mf = devm_regmap_field_alloc(d, m, f); \ 37 if (IS_ERR(mf)) \ 38 return -EINVAL; \ 39 } while (0) 40 41 static inline bool is_cdc_dma_port(int dai_id) 42 { 43 switch (dai_id) { 44 case LPASS_CDC_DMA_RX0 ... LPASS_CDC_DMA_RX9: 45 case LPASS_CDC_DMA_TX0 ... LPASS_CDC_DMA_TX8: 46 case LPASS_CDC_DMA_VA_TX0 ... LPASS_CDC_DMA_VA_TX8: 47 return true; 48 } 49 return false; 50 } 51 52 static inline bool is_rxtx_cdc_dma_port(int dai_id) 53 { 54 switch (dai_id) { 55 case LPASS_CDC_DMA_RX0 ... LPASS_CDC_DMA_RX9: 56 case LPASS_CDC_DMA_TX0 ... LPASS_CDC_DMA_TX8: 57 return true; 58 } 59 return false; 60 } 61 62 struct lpaif_i2sctl { 63 struct regmap_field *loopback; 64 struct regmap_field *spken; 65 struct regmap_field *spkmode; 66 struct regmap_field *spkmono; 67 struct regmap_field *micen; 68 struct regmap_field *micmode; 69 struct regmap_field *micmono; 70 struct regmap_field *wssrc; 71 struct regmap_field *bitwidth; 72 }; 73 74 75 struct lpaif_dmactl { 76 struct regmap_field *intf; 77 struct regmap_field *bursten; 78 struct regmap_field *wpscnt; 79 struct regmap_field *fifowm; 80 struct regmap_field *enable; 81 struct regmap_field *dyncclk; 82 struct regmap_field *burst8; 83 struct regmap_field *burst16; 84 struct regmap_field *dynburst; 85 struct regmap_field *codec_enable; 86 struct regmap_field *codec_pack; 87 struct regmap_field *codec_intf; 88 struct regmap_field *codec_fs_sel; 89 struct regmap_field *codec_channel; 90 struct regmap_field *codec_fs_delay; 91 }; 92 93 /* Both the CPU DAI and platform drivers will access this data */ 94 struct lpass_data { 95 96 /* AHB-I/X bus clocks inside the low-power audio subsystem (LPASS) */ 97 struct clk *ahbix_clk; 98 99 /* MI2S system clock */ 100 struct clk *mi2s_osr_clk[LPASS_MAX_MI2S_PORTS]; 101 102 /* MI2S bit clock (derived from system clock by a divider */ 103 struct clk *mi2s_bit_clk[LPASS_MAX_MI2S_PORTS]; 104 105 struct clk *codec_mem0; 106 struct clk *codec_mem1; 107 struct clk *codec_mem2; 108 struct clk *va_mem0; 109 110 /* MI2S SD lines to use for playback/capture */ 111 unsigned int mi2s_playback_sd_mode[LPASS_MAX_MI2S_PORTS]; 112 unsigned int mi2s_capture_sd_mode[LPASS_MAX_MI2S_PORTS]; 113 114 /* The state of MI2S prepare dai_ops was called */ 115 bool mi2s_was_prepared[LPASS_MAX_MI2S_PORTS]; 116 117 int hdmi_port_enable; 118 int codec_dma_enable; 119 120 /* low-power audio interface (LPAIF) registers */ 121 void __iomem *lpaif; 122 void __iomem *hdmiif; 123 void __iomem *rxtx_lpaif; 124 void __iomem *va_lpaif; 125 126 u32 rxtx_cdc_dma_lpm_buf; 127 u32 va_cdc_dma_lpm_buf; 128 129 /* regmap backed by the low-power audio interface (LPAIF) registers */ 130 struct regmap *lpaif_map; 131 struct regmap *hdmiif_map; 132 struct regmap *rxtx_lpaif_map; 133 struct regmap *va_lpaif_map; 134 135 /* interrupts from the low-power audio interface (LPAIF) */ 136 int lpaif_irq; 137 int hdmiif_irq; 138 int rxtxif_irq; 139 int vaif_irq; 140 141 /* SOC specific variations in the LPASS IP integration */ 142 struct lpass_variant *variant; 143 144 /* bit map to keep track of static channel allocations */ 145 unsigned long dma_ch_bit_map; 146 unsigned long hdmi_dma_ch_bit_map; 147 unsigned long rxtx_dma_ch_bit_map; 148 unsigned long va_dma_ch_bit_map; 149 150 /* used it for handling interrupt per dma channel */ 151 struct snd_pcm_substream *substream[LPASS_MAX_DMA_CHANNELS]; 152 struct snd_pcm_substream *hdmi_substream[LPASS_MAX_HDMI_DMA_CHANNELS]; 153 struct snd_pcm_substream *rxtx_substream[LPASS_MAX_CDC_DMA_CHANNELS]; 154 struct snd_pcm_substream *va_substream[LPASS_MAX_CDC_DMA_CHANNELS]; 155 156 /* SOC specific clock list */ 157 struct clk_bulk_data *clks; 158 int num_clks; 159 160 /* Regmap fields of I2SCTL & DMACTL registers bitfields */ 161 struct lpaif_i2sctl *i2sctl; 162 struct lpaif_dmactl *rd_dmactl; 163 struct lpaif_dmactl *wr_dmactl; 164 struct lpaif_dmactl *hdmi_rd_dmactl; 165 166 /* Regmap fields of CODEC DMA CTRL registers */ 167 struct lpaif_dmactl *rxtx_rd_dmactl; 168 struct lpaif_dmactl *rxtx_wr_dmactl; 169 struct lpaif_dmactl *va_wr_dmactl; 170 171 /* Regmap fields of HDMI_CTRL registers*/ 172 struct regmap_field *hdmitx_legacy_en; 173 struct regmap_field *hdmitx_parity_calc_en; 174 struct regmap_field *hdmitx_ch_msb[LPASS_MAX_HDMI_DMA_CHANNELS]; 175 struct regmap_field *hdmitx_ch_lsb[LPASS_MAX_HDMI_DMA_CHANNELS]; 176 struct lpass_hdmi_tx_ctl *tx_ctl; 177 struct lpass_vbit_ctrl *vbit_ctl; 178 struct lpass_hdmitx_dmactl *hdmi_tx_dmactl[LPASS_MAX_HDMI_DMA_CHANNELS]; 179 struct lpass_dp_metadata_ctl *meta_ctl; 180 struct lpass_sstream_ctl *sstream_ctl; 181 }; 182 183 /* Vairant data per each SOC */ 184 struct lpass_variant { 185 u32 irq_reg_base; 186 u32 irq_reg_stride; 187 u32 irq_ports; 188 u32 rdma_reg_base; 189 u32 rdma_reg_stride; 190 u32 rdma_channels; 191 u32 hdmi_rdma_reg_base; 192 u32 hdmi_rdma_reg_stride; 193 u32 hdmi_rdma_channels; 194 u32 wrdma_reg_base; 195 u32 wrdma_reg_stride; 196 u32 wrdma_channels; 197 u32 rxtx_irq_reg_base; 198 u32 rxtx_irq_reg_stride; 199 u32 rxtx_irq_ports; 200 u32 rxtx_rdma_reg_base; 201 u32 rxtx_rdma_reg_stride; 202 u32 rxtx_rdma_channels; 203 u32 rxtx_wrdma_reg_base; 204 u32 rxtx_wrdma_reg_stride; 205 u32 rxtx_wrdma_channels; 206 u32 va_irq_reg_base; 207 u32 va_irq_reg_stride; 208 u32 va_irq_ports; 209 u32 va_rdma_reg_base; 210 u32 va_rdma_reg_stride; 211 u32 va_rdma_channels; 212 u32 va_wrdma_reg_base; 213 u32 va_wrdma_reg_stride; 214 u32 va_wrdma_channels; 215 u32 i2sctrl_reg_base; 216 u32 i2sctrl_reg_stride; 217 u32 i2s_ports; 218 219 /* I2SCTL Register fields */ 220 struct reg_field loopback; 221 struct reg_field spken; 222 struct reg_field spkmode; 223 struct reg_field spkmono; 224 struct reg_field micen; 225 struct reg_field micmode; 226 struct reg_field micmono; 227 struct reg_field wssrc; 228 struct reg_field bitwidth; 229 230 u32 hdmi_irq_reg_base; 231 u32 hdmi_irq_reg_stride; 232 u32 hdmi_irq_ports; 233 234 /* HDMI specific controls */ 235 u32 hdmi_tx_ctl_addr; 236 u32 hdmi_legacy_addr; 237 u32 hdmi_vbit_addr; 238 u32 hdmi_ch_lsb_addr; 239 u32 hdmi_ch_msb_addr; 240 u32 ch_stride; 241 u32 hdmi_parity_addr; 242 u32 hdmi_dmactl_addr; 243 u32 hdmi_dma_stride; 244 u32 hdmi_DP_addr; 245 u32 hdmi_sstream_addr; 246 247 /* HDMI SSTREAM CTRL fields */ 248 struct reg_field sstream_en; 249 struct reg_field dma_sel; 250 struct reg_field auto_bbit_en; 251 struct reg_field layout; 252 struct reg_field layout_sp; 253 struct reg_field set_sp_on_en; 254 struct reg_field dp_audio; 255 struct reg_field dp_staffing_en; 256 struct reg_field dp_sp_b_hw_en; 257 258 /* HDMI DP METADATA CTL fields */ 259 struct reg_field mute; 260 struct reg_field as_sdp_cc; 261 struct reg_field as_sdp_ct; 262 struct reg_field aif_db4; 263 struct reg_field frequency; 264 struct reg_field mst_index; 265 struct reg_field dptx_index; 266 267 /* HDMI TX CTRL fields */ 268 struct reg_field soft_reset; 269 struct reg_field force_reset; 270 271 /* HDMI TX DMA CTRL */ 272 struct reg_field use_hw_chs; 273 struct reg_field use_hw_usr; 274 struct reg_field hw_chs_sel; 275 struct reg_field hw_usr_sel; 276 277 /* HDMI VBIT CTRL */ 278 struct reg_field replace_vbit; 279 struct reg_field vbit_stream; 280 281 /* HDMI TX LEGACY */ 282 struct reg_field legacy_en; 283 284 /* HDMI TX PARITY */ 285 struct reg_field calc_en; 286 287 /* HDMI CH LSB */ 288 struct reg_field lsb_bits; 289 290 /* HDMI CH MSB */ 291 struct reg_field msb_bits; 292 293 struct reg_field hdmi_rdma_bursten; 294 struct reg_field hdmi_rdma_wpscnt; 295 struct reg_field hdmi_rdma_fifowm; 296 struct reg_field hdmi_rdma_enable; 297 struct reg_field hdmi_rdma_dyncclk; 298 struct reg_field hdmi_rdma_burst8; 299 struct reg_field hdmi_rdma_burst16; 300 struct reg_field hdmi_rdma_dynburst; 301 302 /* RD_DMA Register fields */ 303 struct reg_field rdma_intf; 304 struct reg_field rdma_bursten; 305 struct reg_field rdma_wpscnt; 306 struct reg_field rdma_fifowm; 307 struct reg_field rdma_enable; 308 struct reg_field rdma_dyncclk; 309 310 /* WR_DMA Register fields */ 311 struct reg_field wrdma_intf; 312 struct reg_field wrdma_bursten; 313 struct reg_field wrdma_wpscnt; 314 struct reg_field wrdma_fifowm; 315 struct reg_field wrdma_enable; 316 struct reg_field wrdma_dyncclk; 317 318 /* CDC RXTX RD_DMA */ 319 struct reg_field rxtx_rdma_intf; 320 struct reg_field rxtx_rdma_bursten; 321 struct reg_field rxtx_rdma_wpscnt; 322 struct reg_field rxtx_rdma_fifowm; 323 struct reg_field rxtx_rdma_enable; 324 struct reg_field rxtx_rdma_dyncclk; 325 struct reg_field rxtx_rdma_burst8; 326 struct reg_field rxtx_rdma_burst16; 327 struct reg_field rxtx_rdma_dynburst; 328 struct reg_field rxtx_rdma_codec_enable; 329 struct reg_field rxtx_rdma_codec_pack; 330 struct reg_field rxtx_rdma_codec_intf; 331 struct reg_field rxtx_rdma_codec_fs_sel; 332 struct reg_field rxtx_rdma_codec_ch; 333 struct reg_field rxtx_rdma_codec_fs_delay; 334 335 /* CDC RXTX WR_DMA */ 336 struct reg_field rxtx_wrdma_intf; 337 struct reg_field rxtx_wrdma_bursten; 338 struct reg_field rxtx_wrdma_wpscnt; 339 struct reg_field rxtx_wrdma_fifowm; 340 struct reg_field rxtx_wrdma_enable; 341 struct reg_field rxtx_wrdma_dyncclk; 342 struct reg_field rxtx_wrdma_burst8; 343 struct reg_field rxtx_wrdma_burst16; 344 struct reg_field rxtx_wrdma_dynburst; 345 struct reg_field rxtx_wrdma_codec_enable; 346 struct reg_field rxtx_wrdma_codec_pack; 347 struct reg_field rxtx_wrdma_codec_intf; 348 struct reg_field rxtx_wrdma_codec_fs_sel; 349 struct reg_field rxtx_wrdma_codec_ch; 350 struct reg_field rxtx_wrdma_codec_fs_delay; 351 352 /* CDC VA WR_DMA */ 353 struct reg_field va_wrdma_intf; 354 struct reg_field va_wrdma_bursten; 355 struct reg_field va_wrdma_wpscnt; 356 struct reg_field va_wrdma_fifowm; 357 struct reg_field va_wrdma_enable; 358 struct reg_field va_wrdma_dyncclk; 359 struct reg_field va_wrdma_burst8; 360 struct reg_field va_wrdma_burst16; 361 struct reg_field va_wrdma_dynburst; 362 struct reg_field va_wrdma_codec_enable; 363 struct reg_field va_wrdma_codec_pack; 364 struct reg_field va_wrdma_codec_intf; 365 struct reg_field va_wrdma_codec_fs_sel; 366 struct reg_field va_wrdma_codec_ch; 367 struct reg_field va_wrdma_codec_fs_delay; 368 369 /** 370 * on SOCs like APQ8016 the channel control bits start 371 * at different offset to ipq806x 372 **/ 373 u32 dmactl_audif_start; 374 u32 wrdma_channel_start; 375 u32 rxtx_wrdma_channel_start; 376 u32 va_wrdma_channel_start; 377 378 /* SOC specific initialization like clocks */ 379 int (*init)(struct platform_device *pdev); 380 int (*exit)(struct platform_device *pdev); 381 int (*alloc_dma_channel)(struct lpass_data *data, int direction, unsigned int dai_id); 382 int (*free_dma_channel)(struct lpass_data *data, int ch, unsigned int dai_id); 383 384 /* SOC specific dais */ 385 struct snd_soc_dai_driver *dai_driver; 386 int num_dai; 387 const char * const *dai_osr_clk_names; 388 const char * const *dai_bit_clk_names; 389 390 /* SOC specific clocks configuration */ 391 const char **clk_name; 392 int num_clks; 393 }; 394 395 struct lpass_pcm_data { 396 int dma_ch; 397 int i2s_port; 398 }; 399 400 /* register the platform driver from the CPU DAI driver */ 401 int asoc_qcom_lpass_platform_register(struct platform_device *); 402 int asoc_qcom_lpass_cpu_platform_remove(struct platform_device *pdev); 403 void asoc_qcom_lpass_cpu_platform_shutdown(struct platform_device *pdev); 404 int asoc_qcom_lpass_cpu_platform_probe(struct platform_device *pdev); 405 extern const struct snd_soc_dai_ops asoc_qcom_lpass_cpu_dai_ops; 406 extern const struct snd_soc_dai_ops asoc_qcom_lpass_cpu_dai_ops2; 407 extern const struct snd_soc_dai_ops asoc_qcom_lpass_cdc_dma_dai_ops; 408 409 #endif /* __LPASS_H__ */ 410