[PATCH v3 02/10] ASoC: qcom: lpass: Add dma fields for codec dma lpass interface

Srinivasa Rao Mandadapu
2021-10-23T09:54:41Z

Add lpass interface memebers to support audio path over codec dma.

Signed-off-by: Srinivasa Rao Mandadapu <srivasam@codeaurora.org>
Co-developed-by: Venkata Prasad Potturu <potturu@codeaurora.org>
Signed-off-by: Venkata Prasad Potturu <potturu@codeaurora.org>
---
sound/soc/qcom/lpass.h | 151 +++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 151 insertions(+)

diff --git a/sound/soc/qcom/lpass.h b/sound/soc/qcom/lpass.h
index 63aaa6f..33e4ee5 100644
--- a/sound/soc/qcom/lpass.h
+++ b/sound/soc/qcom/lpass.h
@@ -19,6 +19,28 @@
#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_CDC_DMA_RX0_INTERFACE (0x1)
+#define LPASS_CDC_DMA_TX0_INTERFACE (0x1)
+#define LPASS_CDC_DMA_TX1_INTERFACE (0x2)
+#define LPASS_CDC_DMA_TX2_INTERFACE (0x3)
+#define LPASS_CDC_DMA_TX3_INTERFACE (0x4)
+#define LPASS_CDC_DMA_VA0_INTERFACE (0x1)
+
+#define LPASS_CDC_DMA_INTERFACE(dai_id) \
+ ((dai_id == LPASS_CDC_DMA_TX3) ? \
+ LPASS_CDC_DMA_TX3_INTERFACE : \
+ LPASS_CDC_DMA_VA0_INTERFACE)
+
+#define LPASS_MAX_CDC_CLKS (9)
+#define LPASS_ACTIVE_PDS (4)
+#define LPASS_PROXY_PDS (8)

#define QCOM_REGMAP_FIELD_ALLOC(d, m, f, mf) \
do { \
@@ -50,6 +72,12 @@ struct lpaif_dmactl {
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 */
@@ -64,6 +92,25 @@ struct lpass_data {
/* MI2S bit clock (derived from system clock by a divider */
struct clk *mi2s_bit_clk[LPASS_MAX_MI2S_PORTS];

+ struct clk *cdc_dma_clks[LPASS_MAX_CDC_CLKS];
+
+ struct clk *xo;
+ struct clk *gcc_cfg_noc_lpass;
+ struct clk *core_cc_core;
+ struct clk *aon_cc_audio_hm_h;
+ struct clk *core_cc_sysnoc_mport_core;
+ struct clk *audio_cc_ext_mclk0;
+ struct clk *audio_cc_ext_mclk1;
+ struct clk *core_cc_lpm_core;
+ struct clk *core_cc_lpm_mem0_core;
+ struct clk *audio_cc_codec_mem;
+ struct clk *audio_cc_codec_mem0;
+ struct clk *audio_cc_codec_mem1;
+ struct clk *audio_cc_codec_mem2;
+ struct clk *audio_cc_rx_mclk_2x;
+ struct clk *audio_cc_rx_mclk;
+ struct clk *aon_cc_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];
@@ -72,38 +119,61 @@ struct lpass_data {
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;
+ struct clk_bulk_data *cdc_clks;
+ int cdc_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;
@@ -130,6 +200,24 @@ struct lpass_variant {
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;
@@ -233,12 +321,66 @@ struct lpass_variant {
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);
@@ -250,10 +392,19 @@ struct lpass_variant {
int num_dai;
const char * const *dai_osr_clk_names;
const char * const *dai_bit_clk_names;
+ const char * const *cdc_dma_clk_names;
+
+ const char * const *active_pd_names;
+ const char * const *proxy_pd_names;
+ struct device *active_pds[LPASS_ACTIVE_PDS];
+ struct device *proxy_pds[LPASS_ACTIVE_PDS];
+ int active_pd_count;
+ int proxy_pd_count;

/* SOC specific clocks configuration */
const char **clk_name;
int num_clks;
+ int cdc_dma_num_clks;
};

struct lpass_pcm_data {