drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c

Source file repositories/reference/linux-study-clean/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c

File Facts

System
Linux kernel
Corpus path
drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
Extension
.c
Size
235496 bytes
Lines
8502
Domain
Driver Families
Bucket
drivers/net
Inferred role
Driver Families: exported/initcall integration point
Status
integration 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 brcmf_dump_survey {
	u32 obss;
	u32 ibss;
	u32 no_ctg;
	u32 no_pckt;
	u32 tx;
	u32 idle;
};

struct cca_stats_n_flags {
	u32 msrmnt_time; /* Time for Measurement (msec) */
	u32 msrmnt_done; /* flag set when measurement complete */
	char buf[1];
};

struct cca_msrmnt_query {
	u32 msrmnt_query;
	u32 time_req;
};

static bool check_vif_up(struct brcmf_cfg80211_vif *vif)
{
	if (!test_bit(BRCMF_VIF_STATUS_READY, &vif->sme_state)) {
		brcmf_dbg(INFO, "device is not ready : status (%lu)\n",
			  vif->sme_state);
		return false;
	}
	return true;
}

#define RATE_TO_BASE100KBPS(rate)   (((rate) * 10) / 2)
#define RATETAB_ENT(_rateid, _flags) \
	{                                                               \
		.bitrate        = RATE_TO_BASE100KBPS(_rateid),     \
		.hw_value       = (_rateid),                            \
		.flags          = (_flags),                             \
	}

static struct ieee80211_rate __wl_rates[] = {
	RATETAB_ENT(BRCM_RATE_1M, 0),
	RATETAB_ENT(BRCM_RATE_2M, IEEE80211_RATE_SHORT_PREAMBLE),
	RATETAB_ENT(BRCM_RATE_5M5, IEEE80211_RATE_SHORT_PREAMBLE),
	RATETAB_ENT(BRCM_RATE_11M, IEEE80211_RATE_SHORT_PREAMBLE),
	RATETAB_ENT(BRCM_RATE_6M, 0),
	RATETAB_ENT(BRCM_RATE_9M, 0),
	RATETAB_ENT(BRCM_RATE_12M, 0),
	RATETAB_ENT(BRCM_RATE_18M, 0),
	RATETAB_ENT(BRCM_RATE_24M, 0),
	RATETAB_ENT(BRCM_RATE_36M, 0),
	RATETAB_ENT(BRCM_RATE_48M, 0),
	RATETAB_ENT(BRCM_RATE_54M, 0),
};

#define wl_g_rates		(__wl_rates + 0)
#define wl_g_rates_size		ARRAY_SIZE(__wl_rates)
#define wl_a_rates		(__wl_rates + 4)
#define wl_a_rates_size		(wl_g_rates_size - 4)

#define CHAN2G(_channel, _freq) {				\
	.band			= NL80211_BAND_2GHZ,		\
	.center_freq		= (_freq),			\
	.hw_value		= (_channel),			\
	.max_antenna_gain	= 0,				\
	.max_power		= 30,				\
}

#define CHAN5G(_channel) {					\
	.band			= NL80211_BAND_5GHZ,		\
	.center_freq		= 5000 + (5 * (_channel)),	\
	.hw_value		= (_channel),			\
	.max_antenna_gain	= 0,				\
	.max_power		= 30,				\
}

static struct ieee80211_channel __wl_2ghz_channels[] = {
	CHAN2G(1, 2412), CHAN2G(2, 2417), CHAN2G(3, 2422), CHAN2G(4, 2427),
	CHAN2G(5, 2432), CHAN2G(6, 2437), CHAN2G(7, 2442), CHAN2G(8, 2447),
	CHAN2G(9, 2452), CHAN2G(10, 2457), CHAN2G(11, 2462), CHAN2G(12, 2467),
	CHAN2G(13, 2472), CHAN2G(14, 2484)
};

static struct ieee80211_channel __wl_5ghz_channels[] = {
	CHAN5G(34), CHAN5G(36), CHAN5G(38), CHAN5G(40), CHAN5G(42),
	CHAN5G(44), CHAN5G(46), CHAN5G(48), CHAN5G(52), CHAN5G(56),
	CHAN5G(60), CHAN5G(64), CHAN5G(100), CHAN5G(104), CHAN5G(108),
	CHAN5G(112), CHAN5G(116), CHAN5G(120), CHAN5G(124), CHAN5G(128),
	CHAN5G(132), CHAN5G(136), CHAN5G(140), CHAN5G(144), CHAN5G(149),
	CHAN5G(153), CHAN5G(157), CHAN5G(161), CHAN5G(165)
};

Annotation

Implementation Notes