/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (c) 2010-2011,2013-2015,2020 The Linux Foundation. All rights reserved. * * lpass.h - Definitions for the QTi LPASS */ #ifndef __LPASS_H__ #define __LPASS_H__ #include #include #include #include #include #include "lpass-hdmi.h" #define LPASS_AHBIX_CLOCK_FREQUENCY 131072000 #define LPASS_MAX_MI2S_PORTS (8) #define LPASS_MAX_DMA_CHANNELS (8) #define LPASS_MAX_HDMI_DMA_CHANNELS (4) #define QCOM_REGMAP_FIELD_ALLOC(d, m, f, mf) \ do { \ mf = devm_regmap_field_alloc(d, m, f); \ if (IS_ERR(mf)) \ return -EINVAL; \ } while (0) struct lpaif_i2sctl { struct regmap_field *loopback; struct regmap_field *spken; struct regmap_field *spkmode; struct regmap_field *spkmono; struct regmap_field *micen; struct regmap_field *micmode; struct regmap_field *micmono; struct regmap_field *wssrc; struct regmap_field *bitwidth; }; struct lpaif_dmactl { struct regmap_field *intf; struct regmap_field *bursten; struct regmap_field *wpscnt; struct regmap_field *fifowm; struct regmap_field *enable; struct regmap_field *dyncclk; struct regmap_field *burst8; struct regmap_field *burst16; struct regmap_field *dynburst; }; /* Both the CPU DAI and platform drivers will access this data */ struct lpass_data { /* AHB-I/X bus clocks inside the low-power audio subsystem (LPASS) */ struct clk *ahbix_clk; /* MI2S system clock */ struct clk *mi2s_osr_clk[LPASS_MAX_MI2S_PORTS]; /* MI2S bit clock (derived from system clock by a divider */ struct clk *mi2s_bit_clk[LPASS_MAX_MI2S_PORTS]; /* MI2S SD lines to use for playback/capture */ unsigned int mi2s_playback_sd_mode[LPASS_MAX_MI2S_PORTS]; unsigned int mi2s_capture_sd_mode[LPASS_MAX_MI2S_PORTS]; /* The state of MI2S prepare dai_ops was called */ bool mi2s_was_prepared[LPASS_MAX_MI2S_PORTS]; int hdmi_port_enable; /* low-power audio interface (LPAIF) registers */ void __iomem *lpaif; void __iomem *hdmiif; /* regmap backed by the low-power audio interface (LPAIF) registers */ struct regmap *lpaif_map; struct regmap *hdmiif_map; /* interrupts from the low-power audio interface (LPAIF) */ int lpaif_irq; int hdmiif_irq; /* SOC specific variations in the LPASS IP integration */ struct lpass_variant *variant; /* bit map to keep track of static channel allocations */ unsigned long dma_ch_bit_map; unsigned long hdmi_dma_ch_bit_map; /* used it for handling interrupt per dma channel */ struct snd_pcm_substream *substream[LPASS_MAX_DMA_CHANNELS]; struct snd_pcm_substream *hdmi_substream[LPASS_MAX_HDMI_DMA_CHANNELS]; /* SOC specific clock list */ struct clk_bulk_data *clks; int num_clks; /* Regmap fields of I2SCTL & DMACTL registers bitfields */ struct lpaif_i2sctl *i2sctl; struct lpaif_dmactl *rd_dmactl; struct lpaif_dmactl *wr_dmactl; struct lpaif_dmactl *hdmi_rd_dmactl; /* Regmap fields of HDMI_CTRL registers*/ struct regmap_field *hdmitx_legacy_en; struct regmap_field *hdmitx_parity_calc_en; struct regmap_field *hdmitx_ch_msb[LPASS_MAX_HDMI_DMA_CHANNELS]; struct regmap_field *hdmitx_ch_lsb[LPASS_MAX_HDMI_DMA_CHANNELS]; struct lpass_hdmi_tx_ctl *tx_ctl; struct lpass_vbit_ctrl *vbit_ctl; struct lpass_hdmitx_dmactl *hdmi_tx_dmactl[LPASS_MAX_HDMI_DMA_CHANNELS]; struct lpass_dp_metadata_ctl *meta_ctl; struct lpass_sstream_ctl *sstream_ctl; }; /* Vairant data per each SOC */ struct lpass_variant { u32 irq_reg_base; u32 irq_reg_stride; u32 irq_ports; u32 rdma_reg_base; u32 rdma_reg_stride; u32 rdma_channels; u32 hdmi_rdma_reg_base; u32 hdmi_rdma_reg_stride; u32 hdmi_rdma_channels; u32 wrdma_reg_base; u32 wrdma_reg_stride; u32 wrdma_channels; u32 i2sctrl_reg_base; u32 i2sctrl_reg_stride; u32 i2s_ports; /* I2SCTL Register fields */ struct reg_field loopback; struct reg_field spken; struct reg_field spkmode; struct reg_field spkmono; struct reg_field micen; struct reg_field micmode; struct reg_field micmono; struct reg_field wssrc; struct reg_field bitwidth; u32 hdmi_irq_reg_base; u32 hdmi_irq_reg_stride; u32 hdmi_irq_ports; /* HDMI specific controls */ u32 hdmi_tx_ctl_addr; u32 hdmi_legacy_addr; u32 hdmi_vbit_addr; u32 hdmi_ch_lsb_addr; u32 hdmi_ch_msb_addr; u32 ch_stride; u32 hdmi_parity_addr; u32 hdmi_dmactl_addr; u32 hdmi_dma_stride; u32 hdmi_DP_addr; u32 hdmi_sstream_addr; /* HDMI SSTREAM CTRL fields */ struct reg_field sstream_en; struct reg_field dma_sel; struct reg_field auto_bbit_en; struct reg_field layout; struct reg_field layout_sp; struct reg_field set_sp_on_en; struct reg_field dp_audio; struct reg_field dp_staffing_en; struct reg_field dp_sp_b_hw_en; /* HDMI DP METADATA CTL fields */ struct reg_field mute; struct reg_field as_sdp_cc; struct reg_field as_sdp_ct; struct reg_field aif_db4; struct reg_field frequency; struct reg_field mst_index; struct reg_field dptx_index; /* HDMI TX CTRL fields */ struct reg_field soft_reset; struct reg_field force_reset; /* HDMI TX DMA CTRL */ struct reg_field use_hw_chs; struct reg_field use_hw_usr; struct reg_field hw_chs_sel; struct reg_field hw_usr_sel; /* HDMI VBIT CTRL */ struct reg_field replace_vbit; struct reg_field vbit_stream; /* HDMI TX LEGACY */ struct reg_field legacy_en; /* HDMI TX PARITY */ struct reg_field calc_en; /* HDMI CH LSB */ struct reg_field lsb_bits; /* HDMI CH MSB */ struct reg_field msb_bits; struct reg_field hdmi_rdma_bursten; struct reg_field hdmi_rdma_wpscnt; struct reg_field hdmi_rdma_fifowm; struct reg_field hdmi_rdma_enable; struct reg_field hdmi_rdma_dyncclk; struct reg_field hdmi_rdma_burst8; struct reg_field hdmi_rdma_burst16; struct reg_field hdmi_rdma_dynburst; /* RD_DMA Register fields */ struct reg_field rdma_intf; struct reg_field rdma_bursten; struct reg_field rdma_wpscnt; struct reg_field rdma_fifowm; struct reg_field rdma_enable; struct reg_field rdma_dyncclk; /* WR_DMA Register fields */ struct reg_field wrdma_intf; struct reg_field wrdma_bursten; struct reg_field wrdma_wpscnt; struct reg_field wrdma_fifowm; struct reg_field wrdma_enable; struct reg_field wrdma_dyncclk; /** * on SOCs like APQ8016 the channel control bits start * at different offset to ipq806x **/ u32 dmactl_audif_start; u32 wrdma_channel_start; /* SOC specific initialization like clocks */ int (*init)(struct platform_device *pdev); int (*exit)(struct platform_device *pdev); int (*alloc_dma_channel)(struct lpass_data *data, int direction, unsigned int dai_id); int (*free_dma_channel)(struct lpass_data *data, int ch, unsigned int dai_id); /* SOC specific dais */ struct snd_soc_dai_driver *dai_driver; int num_dai; const char * const *dai_osr_clk_names; const char * const *dai_bit_clk_names; /* SOC specific clocks configuration */ const char **clk_name; int num_clks; }; /* register the platform driver from the CPU DAI driver */ int asoc_qcom_lpass_platform_register(struct platform_device *); int asoc_qcom_lpass_cpu_platform_remove(struct platform_device *pdev); void asoc_qcom_lpass_cpu_platform_shutdown(struct platform_device *pdev); int asoc_qcom_lpass_cpu_platform_probe(struct platform_device *pdev); int asoc_qcom_lpass_cpu_dai_probe(struct snd_soc_dai *dai); extern const struct snd_soc_dai_ops asoc_qcom_lpass_cpu_dai_ops; int lpass_cpu_pcm_new(struct snd_soc_pcm_runtime *rtd, struct snd_soc_dai *dai); #endif /* __LPASS_H__ */