drivers/net/wireless/realtek/rtlwifi/rtl8821ae/rf.c

Source file repositories/reference/linux-study-clean/drivers/net/wireless/realtek/rtlwifi/rtl8821ae/rf.c

File Facts

System
Linux kernel
Corpus path
drivers/net/wireless/realtek/rtlwifi/rtl8821ae/rf.c
Extension
.c
Size
11905 bytes
Lines
441
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

if (turbo_scanoff) {
			for (idx1 = RF90_PATH_A;
				idx1 <= RF90_PATH_B;
				idx1++) {
				tx_agc[idx1] = ppowerlevel[idx1] |
				    (ppowerlevel[idx1] << 8) |
				    (ppowerlevel[idx1] << 16) |
				    (ppowerlevel[idx1] << 24);
			}
		}
	} else {
		for (idx1 = RF90_PATH_A; idx1 <= RF90_PATH_B; idx1++) {
			tx_agc[idx1] = ppowerlevel[idx1] |
			    (ppowerlevel[idx1] << 8) |
			    (ppowerlevel[idx1] << 16) |
			    (ppowerlevel[idx1] << 24);
		}

		if (rtlefuse->eeprom_regulatory == 0) {
			tmpval =
			    (rtlphy->mcs_txpwrlevel_origoffset[0][6]) +
			    (rtlphy->mcs_txpwrlevel_origoffset[0][7] <<
			     8);
			tx_agc[RF90_PATH_A] += tmpval;

			tmpval = (rtlphy->mcs_txpwrlevel_origoffset[0][14]) +
			    (rtlphy->mcs_txpwrlevel_origoffset[0][15] <<
			     24);
			tx_agc[RF90_PATH_B] += tmpval;
		}
	}

	for (idx1 = RF90_PATH_A; idx1 <= RF90_PATH_B; idx1++) {
		ptr = (u8 *)(&tx_agc[idx1]);
		for (idx2 = 0; idx2 < 4; idx2++) {
			if (*ptr > RF6052_MAX_TX_PWR)
				*ptr = RF6052_MAX_TX_PWR;
			ptr++;
		}
	}
	rtl8821ae_dm_txpower_track_adjust(hw, 1, &direction, &pwrtrac_value);
	if (direction == 1) {
		tx_agc[0] += pwrtrac_value;
		tx_agc[1] += pwrtrac_value;
	} else if (direction == 2) {
		tx_agc[0] -= pwrtrac_value;
		tx_agc[1] -= pwrtrac_value;
	}
	tmpval = tx_agc[RF90_PATH_A];
	rtl_set_bbreg(hw, RTXAGC_A_CCK11_CCK1, MASKDWORD, tmpval);

	RTPRINT(rtlpriv, FPHY, PHY_TXPWR,
		"CCK PWR 1~11M (rf-A) = 0x%x (reg 0x%x)\n", tmpval,
		 RTXAGC_A_CCK11_CCK1);

	tmpval = tx_agc[RF90_PATH_B];
	rtl_set_bbreg(hw, RTXAGC_B_CCK11_CCK1, MASKDWORD, tmpval);

	RTPRINT(rtlpriv, FPHY, PHY_TXPWR,
		"CCK PWR 11M (rf-B) = 0x%x (reg 0x%x)\n", tmpval,
		 RTXAGC_B_CCK11_CCK1);
}

static void rtl8821ae_phy_get_power_base(struct ieee80211_hw *hw,
					 u8 *ppowerlevel_ofdm,
					 u8 *ppowerlevel_bw20,
					 u8 *ppowerlevel_bw40, u8 channel,
					 u32 *ofdmbase, u32 *mcsbase)
{
	struct rtl_priv *rtlpriv = rtl_priv(hw);
	struct rtl_phy *rtlphy = &rtlpriv->phy;
	u32 powerbase0, powerbase1;
	u8 i, powerlevel[2];

	for (i = 0; i < 2; i++) {
		powerbase0 = ppowerlevel_ofdm[i];

		powerbase0 = (powerbase0 << 24) | (powerbase0 << 16) |
		    (powerbase0 << 8) | powerbase0;
		*(ofdmbase + i) = powerbase0;
		RTPRINT(rtlpriv, FPHY, PHY_TXPWR,
			" [OFDM power base index rf(%c) = 0x%x]\n",
			 ((i == 0) ? 'A' : 'B'), *(ofdmbase + i));
	}

	for (i = 0; i < 2; i++) {
		if (rtlphy->current_chan_bw == HT_CHANNEL_WIDTH_20)
			powerlevel[i] = ppowerlevel_bw20[i];
		else
			powerlevel[i] = ppowerlevel_bw40[i];

Annotation

Implementation Notes