u32 mdio_read(u32 PhyRegAddr, u32 PhyAddr)
{
u32 val =0;
/* 32 Consecutive ones on MDO to establish sync */
output_MDIO(0xFFFFFFFF, 32);
/* start code 01, read command (10) */
output_MDIO(0x06, 4);
/* write PHY address */
output_MDIO(PhyAddr, 5);
output_MDIO(PhyRegAddr, 5);
/* turnaround MDO is tristated */
turnaround_MDIO();
/* Read the data value */
val = input_MDIO();
/* turnaround MDO is tristated */
idle_MDIO();
return val;
}
uint32_t mdio_read(GPIO_TypeDef* GPIOx, uint32_t PhyRegAddr)
{
uint32_t val =0;
/* 32 Consecutive ones on MDO to establish sync */
//printf("mdio read - sync \r\n");
output_MDIO(GPIOx, 0xFFFFFFFF, 32);
/* start code 01, read command (10) */
//printf("mdio read - start \r\n");
output_MDIO(GPIOx, 0x06, 4);
/* write PHY address */
//printf("mdio read - PHY address \r\n");
output_MDIO(GPIOx, PHY_ADDR, 5);
//printf("mdio read - PHY REG address \r\n");
output_MDIO(GPIOx, PhyRegAddr, 5);
/* turnaround MDO is tristated */
//printf("mdio read - turnaround \r\n");
turnaround_MDIO(GPIOx);
/* Read the data value */
//printf("mdio read - read the data value \r\n");
val = input_MDIO(GPIOx );
//printf("mdio read - val : %X\r\n", val );
/* turnaround MDO is tristated */
//printf("mdio read - idle \r\n");
idle_MDIO(GPIOx);
return val;
}
void mdio_write(GPIO_TypeDef* GPIOx, uint32_t PhyRegAddr, uint32_t val)
{
/* 32 Consecutive ones on MDO to establish sync */
//printf("mdio write- sync \r\n");
output_MDIO(GPIOx, 0xFFFFFFFF, 32);
/* start code 01, write command (01) */
//printf("mdio write- start \r\n");
output_MDIO(GPIOx, 0x05, 4);
/* write PHY address */
//printf("mdio write- PHY address \r\n");
output_MDIO(GPIOx, PHY_ADDR, 5);
//printf("mdio read - PHY REG address \r\n");
output_MDIO(GPIOx, PhyRegAddr, 5);
/* turnaround MDO */
//printf("mdio write- turnaround (1,0)\r\n");
output_MDIO(GPIOx, 0x02, 2);
/* Write the data value */
//printf("mdio writeread - read the data value \r\n");
output_MDIO(GPIOx, val, 16);
/* turnaround MDO is tristated */
//printf("mdio write- idle \r\n");
idle_MDIO(GPIOx);
}
void mdio_write(u32 PhyRegAddr, u32 val)
{
/* 32 Consecutive ones on MDO to establish sync */
output_MDIO(0xFFFFFFFF, 32);
/* start code 01, write command (01) */
output_MDIO(0x05, 4);
/* write PHY address */
output_MDIO(PHY_ADDR, 5);
output_MDIO(PhyRegAddr, 5);
/* turnaround MDO */
output_MDIO(0x02, 2);
/* Write the data value */
output_MDIO(val, 16);
/* turnaround MDO is tristated */
idle_MDIO();
}
