111 lines
2.6 KiB
C
111 lines
2.6 KiB
C
/******************************************************************************
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*
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* Copyright(c) 2017 - 2018 Realtek Corporation.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of version 2 of the GNU General Public License as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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*****************************************************************************/
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#include <linux/delay.h> /* mdelay() */
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#include <mach/hardware.h> /* __io_address(), readl(), writel() */
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#include "platform_hisilicon_hi3798_sdio.h" /* HI_S32() and etc. */
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typedef enum hi_GPIO_DIR_E {
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HI_DIR_OUT = 0,
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HI_DIR_IN = 1,
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} HI_GPIO_DIR_E;
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#define RTL_REG_ON_GPIO (4*8 + 3)
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#define REG_BASE_CTRL __io_address(0xf8a20008)
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int gpio_wlan_reg_on = RTL_REG_ON_GPIO;
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#if 0
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module_param(gpio_wlan_reg_on, uint, 0644);
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MODULE_PARM_DESC(gpio_wlan_reg_on, "wlan reg_on gpio num (default:gpio4_3)");
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#endif
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static int hi_gpio_set_value(u32 gpio, u32 value)
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{
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HI_S32 s32Status;
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s32Status = HI_DRV_GPIO_SetDirBit(gpio, HI_DIR_OUT);
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if (s32Status != HI_SUCCESS) {
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pr_err("gpio(%d) HI_DRV_GPIO_SetDirBit HI_DIR_OUT failed\n",
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gpio);
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return -1;
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}
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s32Status = HI_DRV_GPIO_WriteBit(gpio, value);
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if (s32Status != HI_SUCCESS) {
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pr_err("gpio(%d) HI_DRV_GPIO_WriteBit value(%d) failed\n",
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gpio, value);
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return -1;
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}
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return 0;
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}
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static int hisi_wlan_set_carddetect(bool present)
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{
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u32 regval;
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u32 mask;
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#ifndef CONFIG_HISI_SDIO_ID
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return;
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#endif
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pr_info("SDIO ID=%d\n", CONFIG_HISI_SDIO_ID);
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#if (CONFIG_HISI_SDIO_ID == 1)
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mask = 1;
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#elif (CONFIG_HISI_SDIO_ID == 0)
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mask = 2;
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#endif
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regval = readl(REG_BASE_CTRL);
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if (present) {
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pr_info("====== Card detection to detect SDIO card! ======\n");
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/* set card_detect low to detect card */
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regval |= mask;
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} else {
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pr_info("====== Card detection to remove SDIO card! ======\n");
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/* set card_detect high to remove card */
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regval &= ~(mask);
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}
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writel(regval, REG_BASE_CTRL);
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return 0;
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}
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/*
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* Return:
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* 0: power on successfully
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* others: power on failed
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*/
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int platform_wifi_power_on(void)
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{
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int ret = 0;
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hi_gpio_set_value(gpio_wlan_reg_on, 1);
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mdelay(100);
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hisi_wlan_set_carddetect(1);
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mdelay(2000);
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pr_info("======== set_carddetect delay 2s! ========\n");
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return ret;
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}
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void platform_wifi_power_off(void)
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{
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hisi_wlan_set_carddetect(0);
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mdelay(100);
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hi_gpio_set_value(gpio_wlan_reg_on, 0);
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}
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