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net: rfkill-wlan: support chip alive and add wifi power node

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Signed-off-by: Yao Xiao <xiaoyao@rock-chips.com>
Change-Id: I481e415f29840db332381750ad266067f15dbac7
This commit is contained in:
Yao Xiao
2020-09-30 10:30:53 +08:00
committed by Tao Huang
parent 2447df1bef
commit 36a2d0b595
1 changed files with 43 additions and 5 deletions
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48
net/rfkill/rfkill-wlan.c
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@@ -44,6 +44,7 @@
#include <linux/of_gpio.h>
#endif
#include <linux/soc/rockchip/rk_vendor_storage.h>
#include <linux/device.h>
#include "../../drivers/mmc/core/pwrseq.h"
@@ -275,9 +276,10 @@ int rockchip_wifi_power(int on)
}
wifi_power_state = 1;
LOG("wifi turn on power. %d\n", poweron->io);
LOG("wifi turn on power [GPIO%d-%d]\n", poweron->io, poweron->enable);
} else {
if (gpio_is_valid(poweron->io)) {
printk("wifi power off\n");
gpio_set_value(poweron->io, !(poweron->enable));
msleep(100);
}
@@ -287,7 +289,7 @@ int rockchip_wifi_power(int on)
}
wifi_power_state = 0;
LOG("wifi shut off power.\n");
LOG("wifi shut off power [GPIO%d-%d]\n", poweron->io, !poweron->enable);
}
}
@@ -696,6 +698,36 @@ static struct notifier_block rfkill_wlan_fb_notifier = {
.notifier_call = rfkill_wlan_fb_event_notify,
};
static ssize_t wifi_power_write_store(struct class *cls, struct class_attribute *attr, const char *_buf, size_t _count)
{
long poweren = 0;
if (kstrtol(_buf, 10, &poweren) < 0)
return -EINVAL;
LOG("%s: poweren = %ld\n", __func__, poweren);
if (poweren > 0)
rockchip_wifi_power(1);
else
rockchip_wifi_power(0);
return _count;
}
static CLASS_ATTR_WO(wifi_power_write);
static struct attribute *rkwifi_power_attrs[] = {
&class_attr_wifi_power_write.attr,
NULL,
};
ATTRIBUTE_GROUPS(rkwifi_power);
/** Device model classes */
static struct class rkwifi_power = {
.name = "rkwifi",
.class_groups = rkwifi_power_groups,
};
static int rfkill_wlan_probe(struct platform_device *pdev)
{
struct rfkill_wlan_data *rfkill;
@@ -704,6 +736,8 @@ static int rfkill_wlan_probe(struct platform_device *pdev)
LOG("Enter %s\n", __func__);
class_register(&rkwifi_power);
if (!pdata) {
#ifdef CONFIG_OF
pdata = kzalloc(sizeof(*pdata), GFP_KERNEL);
@@ -752,10 +786,14 @@ static int rfkill_wlan_probe(struct platform_device *pdev)
if (gpio_is_valid(pdata->vbat_n.io))
gpio_direction_output(pdata->vbat_n.io, pdata->vbat_n.enable);
// Turn off wifi power as default
#ifdef CONFIG_SDIO_KEEPALIVE
if (primary_sdio_host && primary_sdio_host->support_chip_alive)
gpio_direction_output(pdata->power_n.io, pdata->power_n.enable);
#else
if (gpio_is_valid(pdata->power_n.io))
gpio_direction_output(pdata->power_n.io,
!pdata->power_n.enable);
gpio_direction_output(pdata->power_n.io, !pdata->power_n.enable);
#endif
if (pdata->wifi_power_remain)
rockchip_wifi_power(1);