drivers/net/wireless/realtek/rtlwifi/rtl8188ee/fw.c

Source file repositories/reference/linux-study-clean/drivers/net/wireless/realtek/rtlwifi/rtl8188ee/fw.c

File Facts

System
Linux kernel
Corpus path
drivers/net/wireless/realtek/rtlwifi/rtl8188ee/fw.c
Extension
.c
Size
21784 bytes
Lines
722
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 (rtlhal->h2c_setinprogress) {
			rtl_dbg(rtlpriv, COMP_CMD, DBG_LOUD,
				"H2C set in progress! Wait to set..element_id(%d).\n",
				element_id);

			while (rtlhal->h2c_setinprogress) {
				spin_unlock_irqrestore(&rtlpriv->locks.h2c_lock,
						       flag);
				h2c_waitcounter++;
				rtl_dbg(rtlpriv, COMP_CMD, DBG_LOUD,
					"Wait 100 us (%d times)...\n",
					h2c_waitcounter);
				udelay(100);

				if (h2c_waitcounter > 1000)
					return;
				spin_lock_irqsave(&rtlpriv->locks.h2c_lock,
						  flag);
			}
			spin_unlock_irqrestore(&rtlpriv->locks.h2c_lock, flag);
		} else {
			rtlhal->h2c_setinprogress = true;
			spin_unlock_irqrestore(&rtlpriv->locks.h2c_lock, flag);
			break;
		}
	}

	while (!write_sucess) {
		wait_writeh2c_limit--;
		if (wait_writeh2c_limit == 0) {
			pr_err("Write H2C fail because no trigger for FW INT!\n");
			break;
		}

		boxnum = rtlhal->last_hmeboxnum;
		switch (boxnum) {
		case 0:
			box_reg = REG_HMEBOX_0;
			box_extreg = REG_HMEBOX_EXT_0;
			break;
		case 1:
			box_reg = REG_HMEBOX_1;
			box_extreg = REG_HMEBOX_EXT_1;
			break;
		case 2:
			box_reg = REG_HMEBOX_2;
			box_extreg = REG_HMEBOX_EXT_2;
			break;
		case 3:
			box_reg = REG_HMEBOX_3;
			box_extreg = REG_HMEBOX_EXT_3;
			break;
		default:
			rtl_dbg(rtlpriv, COMP_ERR, DBG_LOUD,
				"switch case %#x not processed\n", boxnum);
			break;
		}
		isfw_read = _rtl88e_check_fw_read_last_h2c(hw, boxnum);
		while (!isfw_read) {
			wait_h2c_limmit--;
			if (wait_h2c_limmit == 0) {
				rtl_dbg(rtlpriv, COMP_CMD, DBG_LOUD,
					"Waiting too long for FW read clear HMEBox(%d)!\n",
					boxnum);
				break;
			}

			udelay(10);

			isfw_read = _rtl88e_check_fw_read_last_h2c(hw, boxnum);
			u1b_tmp = rtl_read_byte(rtlpriv, 0x130);
			rtl_dbg(rtlpriv, COMP_CMD, DBG_LOUD,
				"Waiting for FW read clear HMEBox(%d)!!! 0x130 = %2x\n",
				boxnum, u1b_tmp);
		}

		if (!isfw_read) {
			rtl_dbg(rtlpriv, COMP_CMD, DBG_LOUD,
				"Write H2C register BOX[%d] fail!!!!! Fw do not read.\n",
				boxnum);
			break;
		}

		memset(boxcontent, 0, sizeof(boxcontent));
		memset(boxextcontent, 0, sizeof(boxextcontent));
		boxcontent[0] = element_id;
		rtl_dbg(rtlpriv, COMP_CMD, DBG_LOUD,
			"Write element_id box_reg(%4x) = %2x\n",
			box_reg, element_id);

Annotation

Implementation Notes