1 files changed, 146 insertions, 0 deletions
diff --git a/drivers/staging/rtl8723bs/hal/HalPwrSeqCmd.c b/drivers/staging/rtl8723bs/hal/HalPwrSeqCmd.c
new file mode 100644
index 000000000..5f9e94a7e
--- /dev/null
+++ b/drivers/staging/rtl8723bs/hal/HalPwrSeqCmd.c
@@ -0,0 +1,146 @@
+// SPDX-License-Identifier: GPL-2.0
+/******************************************************************************
+ *
+ * Copyright(c) 2007 - 2011 Realtek Corporation. All rights reserved.
+ *
+ ******************************************************************************/
+/*++
+Copyright (c) Realtek Semiconductor Corp. All rights reserved.
+
+Module Name:
+	HalPwrSeqCmd.c
+
+Abstract:
+	Implement HW Power sequence configuration CMD handling routine for Realtek devices.
+
+Major Change History:
+	When       Who               What
+	---------- ---------------   -------------------------------
+	2011-10-26 Lucas            Modify to be compatible with SD4-CE driver.
+	2011-07-07 Roger            Create.
+
+--*/
+#include <drv_types.h>
+#include <rtw_debug.h>
+#include <HalPwrSeqCmd.h>
+
+
+/*  */
+/*  Description: */
+/*  This routine deal with the Power Configuration CMDs parsing for RTL8723/RTL8188E Series IC. */
+/*  */
+/*  Assumption: */
+/*  We should follow specific format which was released from HW SD. */
+/*  */
+/*  2011.07.07, added by Roger. */
+/*  */
+u8 HalPwrSeqCmdParsing(
+	struct adapter *padapter,
+	u8 CutVersion,
+	u8 FabVersion,
+	u8 InterfaceType,
+	struct wlan_pwr_cfg PwrSeqCmd[]
+)
+{
+	struct wlan_pwr_cfg PwrCfgCmd;
+	u8 bPollingBit = false;
+	u32 AryIdx = 0;
+	u8 value = 0;
+	u32 offset = 0;
+	u32 pollingCount = 0; /*  polling autoload done. */
+	u32 maxPollingCnt = 5000;
+
+	do {
+		PwrCfgCmd = PwrSeqCmd[AryIdx];
+
+		/* 2 Only Handle the command whose FAB, CUT, and Interface are matched */
+		if (
+			(GET_PWR_CFG_FAB_MASK(PwrCfgCmd) & FabVersion) &&
+			(GET_PWR_CFG_CUT_MASK(PwrCfgCmd) & CutVersion) &&
+			(GET_PWR_CFG_INTF_MASK(PwrCfgCmd) & InterfaceType)
+		) {
+			switch (GET_PWR_CFG_CMD(PwrCfgCmd)) {
+			case PWR_CMD_READ:
+				break;
+
+			case PWR_CMD_WRITE:
+				offset = GET_PWR_CFG_OFFSET(PwrCfgCmd);
+
+				/*  */
+				/*  <Roger_Notes> We should deal with interface specific address mapping for some interfaces, e.g., SDIO interface */
+				/*  2011.07.07. */
+				/*  */
+				if (GET_PWR_CFG_BASE(PwrCfgCmd) == PWR_BASEADDR_SDIO) {
+					/*  Read Back SDIO Local value */
+					value = SdioLocalCmd52Read1Byte(padapter, offset);
+
+					value &= ~(GET_PWR_CFG_MASK(PwrCfgCmd));
+					value |= (
+						GET_PWR_CFG_VALUE(PwrCfgCmd) &
+						GET_PWR_CFG_MASK(PwrCfgCmd)
+					);
+
+					/*  Write Back SDIO Local value */
+					SdioLocalCmd52Write1Byte(padapter, offset, value);
+				} else {
+					/*  Read the value from system register */
+					value = rtw_read8(padapter, offset);
+
+					value &= (~(GET_PWR_CFG_MASK(PwrCfgCmd)));
+					value |= (
+						GET_PWR_CFG_VALUE(PwrCfgCmd)
+						&GET_PWR_CFG_MASK(PwrCfgCmd)
+					);
+
+					/*  Write the value back to system register */
+					rtw_write8(padapter, offset, value);
+				}
+				break;
+
+			case PWR_CMD_POLLING:
+
+				bPollingBit = false;
+				offset = GET_PWR_CFG_OFFSET(PwrCfgCmd);
+				do {
+					if (GET_PWR_CFG_BASE(PwrCfgCmd) == PWR_BASEADDR_SDIO)
+						value = SdioLocalCmd52Read1Byte(padapter, offset);
+					else
+						value = rtw_read8(padapter, offset);
+
+					value = value&GET_PWR_CFG_MASK(PwrCfgCmd);
+					if (
+						value == (GET_PWR_CFG_VALUE(PwrCfgCmd) &
+						GET_PWR_CFG_MASK(PwrCfgCmd))
+					)
+						bPollingBit = true;
+					else
+						udelay(10);
+
+					if (pollingCount++ > maxPollingCnt)
+						return false;
+
+				} while (!bPollingBit);
+
+				break;
+
+			case PWR_CMD_DELAY:
+				if (GET_PWR_CFG_VALUE(PwrCfgCmd) == PWRSEQ_DELAY_US)
+					udelay(GET_PWR_CFG_OFFSET(PwrCfgCmd));
+				else
+					udelay(GET_PWR_CFG_OFFSET(PwrCfgCmd)*1000);
+				break;
+
+			case PWR_CMD_END:
+				/*  When this command is parsed, end the process */
+				return true;
+
+			default:
+				break;
+			}
+		}
+
+		AryIdx++;/* Add Array Index */
+	} while (1);
+
+	return true;
+}