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-rw-r--r--sound/soc/qcom/lpass.h411
1 files changed, 411 insertions, 0 deletions
diff --git a/sound/soc/qcom/lpass.h b/sound/soc/qcom/lpass.h
new file mode 100644
index 000000000..dd78600fc
--- /dev/null
+++ b/sound/soc/qcom/lpass.h
@@ -0,0 +1,411 @@
+/* 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 <linux/clk.h>
+#include <linux/compiler.h>
+#include <linux/platform_device.h>
+#include <linux/regmap.h>
+#include <dt-bindings/sound/qcom,lpass.h>
+#include "lpass-hdmi.h"
+
+#define LPASS_AHBIX_CLOCK_FREQUENCY 131072000
+#define LPASS_MAX_PORTS (LPASS_CDC_DMA_VA_TX8 + 1)
+#define LPASS_MAX_MI2S_PORTS (8)
+#define LPASS_MAX_DMA_CHANNELS (8)
+#define LPASS_MAX_HDMI_DMA_CHANNELS (4)
+#define LPASS_MAX_CDC_DMA_CHANNELS (8)
+#define LPASS_MAX_VA_CDC_DMA_CHANNELS (8)
+#define LPASS_CDC_DMA_INTF_ONE_CHANNEL (0x01)
+#define LPASS_CDC_DMA_INTF_TWO_CHANNEL (0x03)
+#define LPASS_CDC_DMA_INTF_FOUR_CHANNEL (0x0F)
+#define LPASS_CDC_DMA_INTF_SIX_CHANNEL (0x3F)
+#define LPASS_CDC_DMA_INTF_EIGHT_CHANNEL (0xFF)
+
+#define LPASS_ACTIVE_PDS (4)
+#define LPASS_PROXY_PDS (8)
+
+#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)
+
+static inline bool is_cdc_dma_port(int dai_id)
+{
+ switch (dai_id) {
+ case LPASS_CDC_DMA_RX0 ... LPASS_CDC_DMA_RX9:
+ case LPASS_CDC_DMA_TX0 ... LPASS_CDC_DMA_TX8:
+ case LPASS_CDC_DMA_VA_TX0 ... LPASS_CDC_DMA_VA_TX8:
+ return true;
+ }
+ return false;
+}
+
+static inline bool is_rxtx_cdc_dma_port(int dai_id)
+{
+ switch (dai_id) {
+ case LPASS_CDC_DMA_RX0 ... LPASS_CDC_DMA_RX9:
+ case LPASS_CDC_DMA_TX0 ... LPASS_CDC_DMA_TX8:
+ return true;
+ }
+ return false;
+}
+
+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;
+ struct regmap_field *codec_enable;
+ struct regmap_field *codec_pack;
+ struct regmap_field *codec_intf;
+ struct regmap_field *codec_fs_sel;
+ struct regmap_field *codec_channel;
+ struct regmap_field *codec_fs_delay;
+};
+
+/* 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];
+
+ struct clk *codec_mem0;
+ struct clk *codec_mem1;
+ struct clk *codec_mem2;
+ struct clk *va_mem0;
+
+ /* 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;
+ int codec_dma_enable;
+
+ /* low-power audio interface (LPAIF) registers */
+ void __iomem *lpaif;
+ void __iomem *hdmiif;
+ void __iomem *rxtx_lpaif;
+ void __iomem *va_lpaif;
+
+ u32 rxtx_cdc_dma_lpm_buf;
+ u32 va_cdc_dma_lpm_buf;
+
+ /* regmap backed by the low-power audio interface (LPAIF) registers */
+ struct regmap *lpaif_map;
+ struct regmap *hdmiif_map;
+ struct regmap *rxtx_lpaif_map;
+ struct regmap *va_lpaif_map;
+
+ /* interrupts from the low-power audio interface (LPAIF) */
+ int lpaif_irq;
+ int hdmiif_irq;
+ int rxtxif_irq;
+ int vaif_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;
+ unsigned long rxtx_dma_ch_bit_map;
+ unsigned long va_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];
+ struct snd_pcm_substream *rxtx_substream[LPASS_MAX_CDC_DMA_CHANNELS];
+ struct snd_pcm_substream *va_substream[LPASS_MAX_CDC_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 CODEC DMA CTRL registers */
+ struct lpaif_dmactl *rxtx_rd_dmactl;
+ struct lpaif_dmactl *rxtx_wr_dmactl;
+ struct lpaif_dmactl *va_wr_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 rxtx_irq_reg_base;
+ u32 rxtx_irq_reg_stride;
+ u32 rxtx_irq_ports;
+ u32 rxtx_rdma_reg_base;
+ u32 rxtx_rdma_reg_stride;
+ u32 rxtx_rdma_channels;
+ u32 rxtx_wrdma_reg_base;
+ u32 rxtx_wrdma_reg_stride;
+ u32 rxtx_wrdma_channels;
+ u32 va_irq_reg_base;
+ u32 va_irq_reg_stride;
+ u32 va_irq_ports;
+ u32 va_rdma_reg_base;
+ u32 va_rdma_reg_stride;
+ u32 va_rdma_channels;
+ u32 va_wrdma_reg_base;
+ u32 va_wrdma_reg_stride;
+ u32 va_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;
+
+ /* CDC RXTX RD_DMA */
+ struct reg_field rxtx_rdma_intf;
+ struct reg_field rxtx_rdma_bursten;
+ struct reg_field rxtx_rdma_wpscnt;
+ struct reg_field rxtx_rdma_fifowm;
+ struct reg_field rxtx_rdma_enable;
+ struct reg_field rxtx_rdma_dyncclk;
+ struct reg_field rxtx_rdma_burst8;
+ struct reg_field rxtx_rdma_burst16;
+ struct reg_field rxtx_rdma_dynburst;
+ struct reg_field rxtx_rdma_codec_enable;
+ struct reg_field rxtx_rdma_codec_pack;
+ struct reg_field rxtx_rdma_codec_intf;
+ struct reg_field rxtx_rdma_codec_fs_sel;
+ struct reg_field rxtx_rdma_codec_ch;
+ struct reg_field rxtx_rdma_codec_fs_delay;
+
+ /* CDC RXTX WR_DMA */
+ struct reg_field rxtx_wrdma_intf;
+ struct reg_field rxtx_wrdma_bursten;
+ struct reg_field rxtx_wrdma_wpscnt;
+ struct reg_field rxtx_wrdma_fifowm;
+ struct reg_field rxtx_wrdma_enable;
+ struct reg_field rxtx_wrdma_dyncclk;
+ struct reg_field rxtx_wrdma_burst8;
+ struct reg_field rxtx_wrdma_burst16;
+ struct reg_field rxtx_wrdma_dynburst;
+ struct reg_field rxtx_wrdma_codec_enable;
+ struct reg_field rxtx_wrdma_codec_pack;
+ struct reg_field rxtx_wrdma_codec_intf;
+ struct reg_field rxtx_wrdma_codec_fs_sel;
+ struct reg_field rxtx_wrdma_codec_ch;
+ struct reg_field rxtx_wrdma_codec_fs_delay;
+
+ /* CDC VA WR_DMA */
+ struct reg_field va_wrdma_intf;
+ struct reg_field va_wrdma_bursten;
+ struct reg_field va_wrdma_wpscnt;
+ struct reg_field va_wrdma_fifowm;
+ struct reg_field va_wrdma_enable;
+ struct reg_field va_wrdma_dyncclk;
+ struct reg_field va_wrdma_burst8;
+ struct reg_field va_wrdma_burst16;
+ struct reg_field va_wrdma_dynburst;
+ struct reg_field va_wrdma_codec_enable;
+ struct reg_field va_wrdma_codec_pack;
+ struct reg_field va_wrdma_codec_intf;
+ struct reg_field va_wrdma_codec_fs_sel;
+ struct reg_field va_wrdma_codec_ch;
+ struct reg_field va_wrdma_codec_fs_delay;
+
+ /**
+ * on SOCs like APQ8016 the channel control bits start
+ * at different offset to ipq806x
+ **/
+ u32 dmactl_audif_start;
+ u32 wrdma_channel_start;
+ u32 rxtx_wrdma_channel_start;
+ u32 va_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;
+};
+
+struct lpass_pcm_data {
+ int dma_ch;
+ int i2s_port;
+};
+
+/* 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);
+extern const struct snd_soc_dai_ops asoc_qcom_lpass_cdc_dma_dai_ops;
+
+#endif /* __LPASS_H__ */