Orange Pi5 kernel

#include "BT_GPIO.h"
 
int BT_EN_PIN_export(void)
{
<------>int ret;
<------>ret=gpio_export(BT_EN, true);
<------>if(ret)
<------><------>{
<------><------>printk("8822BS_BT: gpio_export_fail!\n");
<------><------>return -1;
<------><------>}
<------>printk("8822BS_BT: gpio_export_success!\n");
<------>return 0;
}
 
int BT_EN_PIN_unexport(void)
{
<------>gpio_unexport(BT_EN);
<------>printk("8822BS_BT: gpio_unexport(BT_EN) called!\n");
<------>return 0;
}
 
 
 
int rtl8822bs_BT_EN_PIN_pullup(void)
{
<------>int ret;
<------>int a;
<------>ret=gpio_direction_output(BT_EN, 1);
<------>if(ret)
<------><------>{
<------><------>printk("8822BS_BT: gpio_direction_output_fail!\n");
<------><------>return -1;
<------><------>}
<------>gpio_set_value(BT_EN,1);
<------>ssleep (1);
<------>a=gpio_get_value(BT_EN);
<------>printk("8822BS_BT: BT_EN: %d\n", a);
#ifdef DBG
<------>printk("8822BS_BT: gpio_pullup_success!\n");
#endif
<------>return 0;
}
 
int rtl8822bs_BT_EN_PIN_pulldown(void)
{
<------>int ret;
<------>int a;
<------>ret=gpio_direction_output(BT_EN, 0);
<------>if(ret)
<------><------>{
<------><------>printk("8822BS_BT: gpio_direction_output_fail!\n");
<------><------>return -1;
<------><------>}
<------>gpio_set_value(BT_EN,0);
<------>ssleep (1);
<------>a=gpio_get_value(BT_EN);
<------>printk("8822BS_BT: BT_EN: %d\n", a);
#ifdef DBG
<------>printk("8822BS_BT: gpio_pulldown_success!\n");
#endif
<------>return 0;
}
 
 
int rtl8822bs_BT_EN_PIN_init(void)
{
<------>int ret;
<------>ret=gpio_request(BT_EN,NULL);
<------>if(ret)
<------><------>{
<------><------>printk("8822BS_BT: gpio_init_fail!\n");
<------><------>return -1;
<------><------>}
<------>printk("8822BS_BT: gpio_init_success!\n");
<------>rtl8822bs_BT_EN_PIN_pullup();
<------>return 0;
}
 
int rtl8822bs_BT_EN_PIN_exit(void)
{
<------>rtl8822bs_BT_EN_PIN_pulldown();
<------>gpio_free(BT_EN);
#ifdef DBG
<------>printk("8822BS_BT: gpio_free(BT_EN) called!\n");
#endif
<------>return 0;
}