drivers/net/wireless/realtek/rtlwifi/rtl8192ce/hw.c

Source file repositories/reference/linux-study-clean/drivers/net/wireless/realtek/rtlwifi/rtl8192ce/hw.c

File Facts

System
Linux kernel
Corpus path
drivers/net/wireless/realtek/rtlwifi/rtl8192ce/hw.c
Extension
.c
Size
64509 bytes
Lines
2325
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 (rfstate == ERFOFF) {
				*((bool *) (val)) = true;
			} else {
				val_rcr = rtl_read_dword(rtlpriv, REG_RCR);
				val_rcr &= 0x00070000;
				if (val_rcr)
					*((bool *) (val)) = false;
				else
					*((bool *) (val)) = true;
			}
			break;
		}
	case HW_VAR_FW_PSMODE_STATUS:
		*((bool *) (val)) = ppsc->fw_current_inpsmode;
		break;
	case HW_VAR_CORRECT_TSF:{
		u64 tsf;
		u32 *ptsf_low = (u32 *)&tsf;
		u32 *ptsf_high = ((u32 *)&tsf) + 1;

		*ptsf_high = rtl_read_dword(rtlpriv, (REG_TSFTR + 4));
		*ptsf_low = rtl_read_dword(rtlpriv, REG_TSFTR);

		*((u64 *) (val)) = tsf;

		break;
		}
	case HAL_DEF_WOWLAN:
		break;
	default:
		pr_err("switch case %#x not processed\n", variable);
		break;
	}
}

void rtl92ce_set_hw_reg(struct ieee80211_hw *hw, u8 variable, u8 *val)
{
	struct rtl_priv *rtlpriv = rtl_priv(hw);
	struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
	struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
	struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
	struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
	struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
	u8 idx;

	switch (variable) {
	case HW_VAR_ETHER_ADDR:{
			for (idx = 0; idx < ETH_ALEN; idx++) {
				rtl_write_byte(rtlpriv, (REG_MACID + idx),
					       val[idx]);
			}
			break;
		}
	case HW_VAR_BASIC_RATE:{
			u16 rate_cfg = ((u16 *) val)[0];
			u8 rate_index = 0;

			rate_cfg &= 0x15f;
			rate_cfg |= 0x01;
			rtl_write_byte(rtlpriv, REG_RRSR, rate_cfg & 0xff);
			rtl_write_byte(rtlpriv, REG_RRSR + 1,
				       (rate_cfg >> 8) & 0xff);
			while (rate_cfg > 0x1) {
				rate_cfg = (rate_cfg >> 1);
				rate_index++;
			}
			rtl_write_byte(rtlpriv, REG_INIRTS_RATE_SEL,
				       rate_index);
			break;
		}
	case HW_VAR_BSSID:{
			for (idx = 0; idx < ETH_ALEN; idx++) {
				rtl_write_byte(rtlpriv, (REG_BSSID + idx),
					       val[idx]);
			}
			break;
		}
	case HW_VAR_SIFS:{
			rtl_write_byte(rtlpriv, REG_SIFS_CTX + 1, val[0]);
			rtl_write_byte(rtlpriv, REG_SIFS_TRX + 1, val[1]);

			rtl_write_byte(rtlpriv, REG_SPEC_SIFS + 1, val[0]);
			rtl_write_byte(rtlpriv, REG_MAC_SPEC_SIFS + 1, val[0]);

			if (!mac->ht_enable)
				rtl_write_word(rtlpriv, REG_RESP_SIFS_OFDM,
					       0x0e0e);
			else
				rtl_write_word(rtlpriv, REG_RESP_SIFS_OFDM,
					       *((u16 *) val));

Annotation

Implementation Notes