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https://github.com/lwfinger/rtl8188eu.git
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77d786b6e8
This version takes advantage of all the cleanups to the code. It has been modified to build on older kernels. Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
87 lines
2.2 KiB
C
87 lines
2.2 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/* Copyright(c) 2007 - 2011 Realtek Corporation. */
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/*++
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Module Name:
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HalPwrSeqCmd.c
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Abstract:
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Implement HW Power sequence configuration CMD handling routine for Realtek devices.
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Major Change History:
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When Who What
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---------- --------------- -------------------------------
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2011-10-26 Lucas Modify to be compatible with SD4-CE driver.
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2011-07-07 Roger Create.
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--*/
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#include "../include/HalPwrSeqCmd.h"
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/* Description: */
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/* This routine deals with the Power Configuration CMDs parsing
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* for RTL8723/RTL8188E Series IC.
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* Assumption:
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* We should follow specific format which was released from HW SD.
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*/
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u8 HalPwrSeqCmdParsing(struct adapter *padapter, struct wl_pwr_cfg pwrseqcmd[])
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{
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struct wl_pwr_cfg pwrcfgcmd = {0};
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u8 poll_bit = false;
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u32 aryidx = 0;
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u8 value = 0;
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u32 offset = 0;
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u32 poll_count = 0; /* polling autoload done. */
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u32 max_poll_count = 5000;
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do {
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pwrcfgcmd = pwrseqcmd[aryidx];
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switch (GET_PWR_CFG_CMD(pwrcfgcmd)) {
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case PWR_CMD_WRITE:
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offset = GET_PWR_CFG_OFFSET(pwrcfgcmd);
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/* Read the value from system register */
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value = rtw_read8(padapter, offset);
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value &= ~(GET_PWR_CFG_MASK(pwrcfgcmd));
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value |= (GET_PWR_CFG_VALUE(pwrcfgcmd) & GET_PWR_CFG_MASK(pwrcfgcmd));
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/* Write the value back to system register */
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rtw_write8(padapter, offset, value);
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break;
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case PWR_CMD_POLLING:
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poll_bit = false;
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offset = GET_PWR_CFG_OFFSET(pwrcfgcmd);
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do {
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value = rtw_read8(padapter, offset);
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value &= GET_PWR_CFG_MASK(pwrcfgcmd);
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if (value == (GET_PWR_CFG_VALUE(pwrcfgcmd) & GET_PWR_CFG_MASK(pwrcfgcmd)))
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poll_bit = true;
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else
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udelay(10);
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if (poll_count++ > max_poll_count)
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return false;
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} while (!poll_bit);
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break;
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case PWR_CMD_DELAY:
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if (GET_PWR_CFG_VALUE(pwrcfgcmd) == PWRSEQ_DELAY_US)
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udelay(GET_PWR_CFG_OFFSET(pwrcfgcmd));
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else
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udelay(GET_PWR_CFG_OFFSET(pwrcfgcmd) * 1000);
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break;
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case PWR_CMD_END:
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/* When this command is parsed, end the process */
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return true;
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break;
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default:
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break;
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}
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aryidx++;/* Add Array Index */
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} while (1);
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return true;
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}
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