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