drivers/net/wireless/mediatek/mt7601u/eeprom.h

Source file repositories/reference/linux-study-clean/drivers/net/wireless/mediatek/mt7601u/eeprom.h

File Facts

System
Linux kernel
Corpus path
drivers/net/wireless/mediatek/mt7601u/eeprom.h
Extension
.h
Size
3131 bytes
Lines
144
Domain
Driver Families
Bucket
drivers/net
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.

Dependency Surface

Detected Declarations

Annotated Snippet

struct power_per_rate  {
	u8 raw;  /* validated s6 value */
	s8 bw20; /* sign-extended int */
	s8 bw40; /* sign-extended int */
};

/* Power per rate - one value per two rates */
struct mt7601u_rate_power {
	struct power_per_rate cck[2];
	struct power_per_rate ofdm[4];
	struct power_per_rate ht[4];
};

struct reg_channel_bounds {
	u8 start;
	u8 num;
};

struct mt7601u_eeprom_params {
	bool tssi_enabled;
	u8 rf_freq_off;
	s8 rssi_offset[2];
	s8 ref_temp;
	s8 lna_gain;

	u8 chan_pwr[14];
	struct mt7601u_rate_power power_rate_table;
	s8 real_cck_bw20[2];

	/* TSSI stuff - only with internal TX ALC */
	struct tssi_data {
		int tx0_delta_offset;
		u8 slope;
		u8 offset[3];
	} tssi_data;

	struct reg_channel_bounds reg;
};

int mt7601u_eeprom_init(struct mt7601u_dev *dev);

static inline u32 s6_validate(u32 reg)
{
	WARN_ON(reg & ~GENMASK(5, 0));
	return reg & GENMASK(5, 0);
}

static inline int s6_to_int(u32 reg)
{
	int s6;

	s6 = s6_validate(reg);
	if (s6 & BIT(5))
		s6 -= BIT(6);

	return s6;
}

static inline u32 int_to_s6(int val)
{
	if (val < -0x20)
		return 0x20;
	if (val > 0x1f)
		return 0x1f;

	return val & 0x3f;
}

#endif

Annotation

Implementation Notes