drivers/net/wireless/mediatek/mt76/mt76x2/phy.c

Source file repositories/reference/linux-study-clean/drivers/net/wireless/mediatek/mt76/mt76x2/phy.c

File Facts

System
Linux kernel
Corpus path
drivers/net/wireless/mediatek/mt76/mt76x2/phy.c
Extension
.c
Size
9076 bytes
Lines
350
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

if (mt76x02_ext_pa_enabled(dev, band)) {
			mt76_wr(dev, MT_RF_PA_MODE_ADJ0, 0x0000ec00);
			mt76_wr(dev, MT_RF_PA_MODE_ADJ1, 0x0000ec00);
		} else {
			mt76_wr(dev, MT_RF_PA_MODE_ADJ0, 0xf4000200);
			mt76_wr(dev, MT_RF_PA_MODE_ADJ1, 0xfa000200);
		}
	} else {
		pa_mode[0] = 0x0000ffff;
		pa_mode[1] = 0x00ff00ff;

		if (mt76x02_ext_pa_enabled(dev, band)) {
			mt76_wr(dev, MT_TX_ALC_CFG_2, 0x2f0f0400);
			mt76_wr(dev, MT_TX_ALC_CFG_3, 0x2f0f0476);
		} else {
			mt76_wr(dev, MT_TX_ALC_CFG_2, 0x1b0f0400);
			mt76_wr(dev, MT_TX_ALC_CFG_3, 0x1b0f0476);
		}

		if (mt76x02_ext_pa_enabled(dev, band))
			pa_mode_adj = 0x04000000;
		else
			pa_mode_adj = 0;

		mt76_wr(dev, MT_RF_PA_MODE_ADJ0, pa_mode_adj);
		mt76_wr(dev, MT_RF_PA_MODE_ADJ1, pa_mode_adj);
	}

	mt76_wr(dev, MT_BB_PA_MODE_CFG0, pa_mode[0]);
	mt76_wr(dev, MT_BB_PA_MODE_CFG1, pa_mode[1]);
	mt76_wr(dev, MT_RF_PA_MODE_CFG0, pa_mode[0]);
	mt76_wr(dev, MT_RF_PA_MODE_CFG1, pa_mode[1]);

	if (mt76x02_ext_pa_enabled(dev, band)) {
		u32 val;

		if (band == NL80211_BAND_2GHZ)
			val = 0x3c3c023c;
		else
			val = 0x363c023c;

		mt76_wr(dev, MT_TX0_RF_GAIN_CORR, val);
		mt76_wr(dev, MT_TX1_RF_GAIN_CORR, val);
		mt76_wr(dev, MT_TX_ALC_CFG_4, 0x00001818);
	} else {
		if (band == NL80211_BAND_2GHZ) {
			u32 val = 0x0f3c3c3c;

			mt76_wr(dev, MT_TX0_RF_GAIN_CORR, val);
			mt76_wr(dev, MT_TX1_RF_GAIN_CORR, val);
			mt76_wr(dev, MT_TX_ALC_CFG_4, 0x00000606);
		} else {
			mt76_wr(dev, MT_TX0_RF_GAIN_CORR, 0x383c023c);
			mt76_wr(dev, MT_TX1_RF_GAIN_CORR, 0x24282e28);
			mt76_wr(dev, MT_TX_ALC_CFG_4, 0);
		}
	}
}
EXPORT_SYMBOL_GPL(mt76x2_phy_set_txpower_regs);

static int
mt76x2_get_min_rate_power(struct mt76x02_rate_power *r)
{
	int i;
	s8 ret = 0;

	for (i = 0; i < sizeof(r->all); i++) {
		if (!r->all[i])
			continue;

		if (ret)
			ret = min(ret, r->all[i]);
		else
			ret = r->all[i];
	}

	return ret;
}

void mt76x2_phy_set_txpower(struct mt76x02_dev *dev)
{
	enum nl80211_chan_width width = dev->mphy.chandef.width;
	struct ieee80211_channel *chan = dev->mphy.chandef.chan;
	struct mt76x2_tx_power_info txp;
	int txp_0, txp_1, delta = 0;
	struct mt76x02_rate_power t = {};
	int base_power, gain;

	mt76x2_get_power_info(dev, &txp, chan);

Annotation

Implementation Notes