sound/soc/codecs/lpass-rx-macro.c

File Facts

System

Linux kernel

Corpus path

sound/soc/codecs/lpass-rx-macro.c

Extension

.c

Size

137826 bytes

Lines

4036

Domain

Driver Families

Bucket

sound/soc

Inferred role

Driver Families: implementation source

Status

source implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

• Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.
• Allocates kernel memory; connect allocation flags and lifetime to context constraints.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/cleanup.h
• linux/module.h
• linux/init.h
• linux/io.h
• linux/platform_device.h
• linux/pm_runtime.h
• linux/clk.h
• sound/soc.h
• sound/pcm.h
• sound/pcm_params.h
• sound/soc-dapm.h
• sound/tlv.h
• linux/of_clk.h
• linux/clk-provider.h
• lpass-macro-common.h

Detected Declarations

• struct comp_coeff_val
• struct interp_sample_rate
• struct rx_macro
• struct wcd_iir_filter_ctl
• function rx_is_wronly_register
• function rx_is_volatile_register
• function rx_pre_2_5_is_rw_register
• function rx_2_5_is_rw_register
• function rx_is_rw_register
• function rx_is_writeable_register
• function rx_is_readable_register
• function rx_macro_int_dem_inp_mux_put
• function rx_macro_set_prim_interpolator_rate
• function for_each_set_bit
• function rx_macro_set_mix_interpolator_rate
• function for_each_set_bit
• function rx_macro_set_interpolator_rate
• function rx_macro_hw_params
• function rx_macro_get_channel_map
• function rx_macro_digital_mute
• function for_each_set_bit
• function rx_macro_mclk_enable
• function rx_macro_mclk_event
• function rx_macro_adie_lb
• function rx_macro_enable_main_path
• function rx_macro_config_compander
• function rx_macro_load_compander_coeff
• function rx_macro_enable_softclip_clk
• function rx_macro_config_softclip
• function rx_macro_config_aux_hpf
• function rx_macro_enable_clsh_block
• function rx_macro_config_classh
• function rx_macro_hd2_control
• function rx_macro_get_compander
• function rx_macro_set_compander
• function rx_macro_mux_get
• function rx_macro_mux_put
• function rx_macro_get_ear_mode
• function rx_macro_put_ear_mode
• function rx_macro_get_hph_hd2_mode
• function rx_macro_put_hph_hd2_mode
• function rx_macro_get_hph_pwr_mode
• function rx_macro_put_hph_pwr_mode
• function rx_macro_soft_clip_enable_get
• function rx_macro_soft_clip_enable_put
• function rx_macro_aux_hpf_mode_get
• function rx_macro_aux_hpf_mode_put
• function rx_macro_hphdelay_lutbypass

Annotated Snippet

struct comp_coeff_val {
	u8 lsb;
	u8 msb;
};

enum {
	HPH_ULP,
	HPH_LOHIFI,
	HPH_MODE_MAX,
};

static const struct comp_coeff_val comp_coeff_table[HPH_MODE_MAX][COMP_MAX_COEFF] = {
	{
		{0x40, 0x00},
		{0x4C, 0x00},
		{0x5A, 0x00},
		{0x6B, 0x00},
		{0x7F, 0x00},
		{0x97, 0x00},
		{0xB3, 0x00},
		{0xD5, 0x00},
		{0xFD, 0x00},
		{0x2D, 0x01},
		{0x66, 0x01},
		{0xA7, 0x01},
		{0xF8, 0x01},
		{0x57, 0x02},
		{0xC7, 0x02},
		{0x4B, 0x03},
		{0xE9, 0x03},
		{0xA3, 0x04},
		{0x7D, 0x05},
		{0x90, 0x06},
		{0xD1, 0x07},
		{0x49, 0x09},
		{0x00, 0x0B},
		{0x01, 0x0D},
		{0x59, 0x0F},
	},
	{
		{0x40, 0x00},
		{0x4C, 0x00},
		{0x5A, 0x00},
		{0x6B, 0x00},
		{0x80, 0x00},
		{0x98, 0x00},
		{0xB4, 0x00},
		{0xD5, 0x00},
		{0xFE, 0x00},
		{0x2E, 0x01},
		{0x66, 0x01},
		{0xA9, 0x01},
		{0xF8, 0x01},
		{0x56, 0x02},
		{0xC4, 0x02},
		{0x4F, 0x03},
		{0xF0, 0x03},
		{0xAE, 0x04},
		{0x8B, 0x05},
		{0x8E, 0x06},
		{0xBC, 0x07},
		{0x56, 0x09},
		{0x0F, 0x0B},
		{0x13, 0x0D},
		{0x6F, 0x0F},
	},
};

enum {
	INTERP_HPHL,
	INTERP_HPHR,
	INTERP_AUX,
	INTERP_MAX
};

enum {
	RX_MACRO_RX0,
	RX_MACRO_RX1,
	RX_MACRO_RX2,
	RX_MACRO_RX3,
	RX_MACRO_RX4,
	RX_MACRO_RX5,
	RX_MACRO_PORTS_MAX
};

enum {
	RX_MACRO_COMP1, /* HPH_L */
	RX_MACRO_COMP2, /* HPH_R */
	RX_MACRO_COMP_MAX
};

Annotation

• Immediate include surface: `linux/cleanup.h`, `linux/module.h`, `linux/init.h`, `linux/io.h`, `linux/platform_device.h`, `linux/pm_runtime.h`, `linux/clk.h`, `sound/soc.h`.
• Detected declarations: `struct comp_coeff_val`, `struct interp_sample_rate`, `struct rx_macro`, `struct wcd_iir_filter_ctl`, `function rx_is_wronly_register`, `function rx_is_volatile_register`, `function rx_pre_2_5_is_rw_register`, `function rx_2_5_is_rw_register`, `function rx_is_rw_register`, `function rx_is_writeable_register`.
• Atlas domain: Driver Families / sound/soc.
• Implementation status: source implementation candidate.

Implementation Notes

• This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
• Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
• Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.