static void prvSetupMACBInterrupt(volatile avr32_macb_t *macb)
{
#ifdef FREERTOS_USED
// Create the semaphore used to trigger the MACB task.
if (xSemaphore == NULL)
{
vSemaphoreCreateBinary( xSemaphore );
}
#else
// Init the variable counting the number of received frames not yet read.
DataToRead = 0;
#endif
#ifdef FREERTOS_USED
if( xSemaphore != NULL)
{
// We start by 'taking' the semaphore so the ISR can 'give' it when the
// first interrupt occurs.
xSemaphoreTake( xSemaphore, 0 );
#endif
// Setup the interrupt for MACB.
// Register the interrupt handler to the interrupt controller at interrupt level 2
INTC_register_interrupt((__int_handler)&vMACB_ISR, AVR32_MACB_IRQ, AVR32_INTC_INT2);
#if ETHERNET_CONF_USE_PHY_IT == 1
/* GPIO enable interrupt upon rising edge */
gpio_enable_pin_interrupt(EXTPHY_MACB_INTERRUPT_PIN, GPIO_FALLING_EDGE);
// Setup the interrupt for PHY.
// Register the interrupt handler to the interrupt controller at interrupt level 2
INTC_register_interrupt((__int_handler)&vPHY_ISR, (AVR32_GPIO_IRQ_0 + (EXTPHY_MACB_INTERRUPT_PIN/8)), AVR32_INTC_INT2);
/* enable interrupts on INT pin */
vWriteMDIO( macb, PHY_MICR , ( MICR_INTEN | MICR_INTOE ));
/* enable "link change" interrupt for Phy */
vWriteMDIO( macb, PHY_MISR , MISR_LINK_INT_EN );
#endif
// We want to interrupt on Rx and Tx events
macb->ier = AVR32_MACB_IER_RCOMP_MASK | AVR32_MACB_IER_TCOMP_MASK;
#ifdef FREERTOS_USED
}
#endif
}
static bool prvProbePHY(volatile avr32_macb_t *macb)
{
volatile unsigned long mii_status;
volatile unsigned long config;
unsigned long upper, lower, advertise, lpa;
volatile unsigned long physID;
// Read Phy Identifier register 1 & 2
lower = ulReadMDIO(macb, PHY_PHYSID2);
upper = ulReadMDIO(macb, PHY_PHYSID1);
// get Phy ID, ignore Revision
physID = ((upper << 16) & 0xFFFF0000) | (lower & 0xFFF0);
// check if it match config
if (physID == EXTPHY_PHY_ID)
{
#if ETHERNET_CONF_USE_RMII_INTERFACE
// setup rmii mode
ethernet_phy_setup_rmii(macb);
#endif
// set advertise register
#if ETHERNET_CONF_AN_ENABLE == 1
advertise = ADVERTISE_CSMA | ADVERTISE_ALL;
#else
advertise = ADVERTISE_CSMA;
#if ETHERNET_CONF_USE_100MB
#if ETHERNET_CONF_USE_FULL_DUPLEX
advertise |= ADVERTISE_100FULL;
#else
advertise |= ADVERTISE_100HALF;
#endif
#else
#if ETHERNET_CONF_USE_FULL_DUPLEX
advertise |= ADVERTISE_10FULL;
#else
advertise |= ADVERTISE_10HALF;
#endif
#endif
#endif
// write advertise register
vWriteMDIO(macb, PHY_ADVERTISE, advertise);
// read Control register
config = ulReadMDIO(macb, PHY_BMCR);
// setup auto negociation
ethernet_phy_setup_auto_negociation(macb, &config);
// update ctrl register
vWriteMDIO(macb, PHY_BMCR, config);
// loop while link status isn't OK
do {
mii_status = ulReadMDIO(macb, PHY_BMSR);
} while (!(mii_status & BMSR_LSTATUS));
// read the LPA configuration of the PHY
lpa = ulReadMDIO(macb, PHY_LPA);
// read the MACB config register
config = AVR32_MACB.ncfgr;
// if 100MB needed
if ((lpa & advertise) & (LPA_100HALF | LPA_100FULL))
{
config |= AVR32_MACB_SPD_MASK;
}
else
{
config &= ~(AVR32_MACB_SPD_MASK);
}
// if FULL DUPLEX needed
if ((lpa & advertise) & (LPA_10FULL | LPA_100FULL))
{
config |= AVR32_MACB_FD_MASK;
}
else
{
config &= ~(AVR32_MACB_FD_MASK);
}
// write the MACB config register
macb->ncfgr = config;
return true;
}
return false;
}
static void prvSetupMACBInterrupt(volatile avr32_macb_t *macb)
{
#ifdef FREERTOS_USED
// Create the semaphore used to trigger the MACB task.
if (xSemaphore == NULL)
{
vSemaphoreCreateBinary( xSemaphore );
}
#else
// Init the variable counting the number of received frames not yet read.
DataToRead = 0;
#endif
#ifdef FREERTOS_USED
if( xSemaphore != NULL)
{
// We start by 'taking' the semaphore so the ISR can 'give' it when the
// first interrupt occurs.
xSemaphoreTake( xSemaphore, 0 );
#endif
// Setup the interrupt for MACB.
// Register the interrupt handler to the interrupt controller at interrupt level 2
INTC_register_interrupt((__int_handler)&vMACB_ISR, AVR32_MACB_IRQ, AVR32_INTC_INT2);
#if ETHERNET_CONF_USE_PHY_IT == 1
#if EXTPHY_MACB_USE_EXTINT
static const gpio_map_t EIC_GPIO_MAP =
{
{EXTPHY_MACB_INTERRUPT_PIN, EXTPHY_MACB_INTERRUPT_FUNCTION},
};
gpio_enable_module(EIC_GPIO_MAP, sizeof(EIC_GPIO_MAP) / sizeof(EIC_GPIO_MAP[0]));
// Enable GPIO pull ups for the interrupt pin.
gpio_enable_pin_pull_up(EXTPHY_MACB_INTERRUPT_PIN);
// Setup the interrupt for PHY.
// Register the interrupt handler to the interrupt controller at interrupt level 2
INTC_register_interrupt((__int_handler)&vPHY_ISR, EXTPHY_MACB_INTERRUPT_IRQ, AVR32_INTC_INT2);
// Enable edge-triggered interrupt.
eic_options.eic_mode = EIC_MODE_EDGE_TRIGGERED;
// Interrupt will trigger on falling edge (this is a must-do for the keypad scan
// feature if the chosen mode is edge-triggered).
eic_options.eic_edge = EIC_EDGE_FALLING_EDGE;
// Initialize in synchronous mode : interrupt is synchronized to the clock
eic_options.eic_async = EIC_SYNCH_MODE;
// Set the interrupt line number.
eic_options.eic_line = EXTPHY_MACB_INTERRUPT;
// Init the EIC controller with the options
eic_init(&AVR32_EIC, &eic_options, 1);
// Enable the EIC line.
eic_enable_line(&AVR32_EIC, EXTPHY_MACB_INTERRUPT);
// Enable the interrupt for the EIC line.
eic_enable_interrupt_line(&AVR32_EIC, EXTPHY_MACB_INTERRUPT);
#else
/* GPIO enable interrupt upon rising edge */
gpio_enable_pin_interrupt(EXTPHY_MACB_INTERRUPT_PIN, GPIO_FALLING_EDGE);
// Setup the interrupt for PHY.
// Register the interrupt handler to the interrupt controller at interrupt level 2
INTC_register_interrupt((__int_handler)&vPHY_ISR, (AVR32_GPIO_IRQ_0 + (EXTPHY_MACB_INTERRUPT_PIN/8)), AVR32_INTC_INT2);
#endif
/* enable interrupts on INT pin */
vWriteMDIO( macb, PHY_MICR , ( MICR_INTEN | MICR_INTOE ));
/* enable "link change" interrupt for Phy */
vWriteMDIO( macb, PHY_MISR , MISR_LINK_INT_EN );
#endif
// We want to interrupt on Rx and Tx events
macb->ier = AVR32_MACB_IER_RCOMP_MASK | AVR32_MACB_IER_TCOMP_MASK;
#ifdef FREERTOS_USED
}
#endif
}
static bool prvProbePHY(volatile avr32_macb_t *macb)
{
volatile unsigned long config;
unsigned long upper, lower, advertise;
volatile unsigned long physID;
// Read Phy Identifier register 1 & 2
lower = ulReadMDIO(macb, PHY_PHYSID2);
upper = ulReadMDIO(macb, PHY_PHYSID1);
// get Phy ID, ignore Revision
physID = ((upper << 16) & 0xFFFF0000) | (lower & 0xFFF0);
// check if it match config
if (physID == EXTPHY_PHY_ID)
{
#if ETHERNET_CONF_USE_RMII_INTERFACE
// setup rmii mode
ethernet_phy_setup_rmii(macb);
#endif
// set advertise register
#if ETHERNET_CONF_AN_ENABLE == 1
advertise = ADVERTISE_CSMA | ADVERTISE_ALL;
#else
advertise = ADVERTISE_CSMA;
#if ETHERNET_CONF_USE_100MB
#if ETHERNET_CONF_USE_FULL_DUPLEX
advertise |= ADVERTISE_100FULL;
#else
advertise |= ADVERTISE_100HALF;
#endif
#else
#if ETHERNET_CONF_USE_FULL_DUPLEX
advertise |= ADVERTISE_10FULL;
#else
advertise |= ADVERTISE_10HALF;
#endif
#endif
#endif
// write advertise register
vWriteMDIO(macb, PHY_ADVERTISE, advertise);
// read Control register
config = ulReadMDIO(macb, PHY_BMCR);
// setup auto negotiation
ethernet_phy_setup_auto_negotiation(macb, &config);
// update ctrl register
vWriteMDIO(macb, PHY_BMCR, config);
#if (ETHERNET_CONF_USE_PHY_IT == 0)
volatile unsigned long mii_status;
// loop while link status isn't OK
do {
mii_status = ulReadMDIO(macb, PHY_BMSR);
} while (!(mii_status & BMSR_LSTATUS));
prvSetupMACBConfig(macb);
#endif /* ETHERNET_CONF_USE_PHY_IT == 0 */
return true;
}
return false;
}
static Bool prvProbePHY( volatile avr32_macb_t * macb )
{
volatile unsigned long mii_status, phy_ctrl;
volatile unsigned long config;
unsigned long upper, lower, mode, advertise, lpa;
volatile unsigned long physID;
// Read Phy Identifier register 1 & 2
lower = ulReadMDIO(macb, PHY_PHYSID2);
upper = ulReadMDIO(macb, PHY_PHYSID1);
// get Phy ID, ignore Revision
physID = ((upper << 16) & 0xFFFF0000) | (lower & 0xFFF0);
// check if it match config
if (physID == ETHERNET_CONF_PHY_ID)
{
// read RBR
mode = ulReadMDIO(macb, PHY_RBR);
// set RMII mode if not done
if ((mode & RBR_RMII) != RBR_RMII)
{
// force RMII flag if strap options are wrong
mode |= RBR_RMII;
vWriteMDIO(macb, PHY_RBR, mode);
}
// set advertise register
#if ETHERNET_CONF_AN_ENABLE == 1
advertise = ADVERTISE_CSMA | ADVERTISE_ALL;
#else
advertise = ADVERTISE_CSMA;
#if ETHERNET_CONF_USE_100MB
#if ETHERNET_CONF_USE_FULL_DUPLEX
advertise |= ADVERTISE_100FULL;
#else
advertise |= ADVERTISE_100HALF;
#endif
#else
#if ETHERNET_CONF_USE_FULL_DUPLEX
advertise |= ADVERTISE_10FULL;
#else
advertise |= ADVERTISE_10HALF;
#endif
#endif
#endif
// write advertise register
vWriteMDIO(macb, PHY_ADVERTISE, advertise);
// read Control register
config = ulReadMDIO(macb, PHY_BMCR);
// read Phy Control register
phy_ctrl = ulReadMDIO(macb, PHY_PHYCR);
#if ETHERNET_CONF_AN_ENABLE
#if ETHERNET_CONF_AUTO_CROSS_ENABLE
// enable Auto MDIX
phy_ctrl |= PHYCR_MDIX_EN;
#else
// disable Auto MDIX
phy_ctrl &= ~PHYCR_MDIX_EN;
#if ETHERNET_CONF_CROSSED_LINK
// force direct link = Use crossed RJ45 cable
phy_ctrl &= ~PHYCR_MDIX_FORCE;
#else
// force crossed link = Use direct RJ45 cable
phy_ctrl |= PHYCR_MDIX_FORCE;
#endif
#endif
// reset auto-negociation capability
config |= (BMCR_ANRESTART | BMCR_ANENABLE);
#else
// disable Auto MDIX
phy_ctrl &= ~PHYCR_MDIX_EN;
#if ETHERNET_CONF_CROSSED_LINK
// force direct link = Use crossed RJ45 cable
phy_ctrl &= ~PHYCR_MDIX_FORCE;
#else
// force crossed link = Use direct RJ45 cable
phy_ctrl |= PHYCR_MDIX_FORCE;
#endif
// clear AN bit
config &= ~BMCR_ANENABLE;
#if ETHERNET_CONF_USE_100MB
config |= BMCR_SPEED100;
#else
config &= ~BMCR_SPEED100;
#endif
#if ETHERNET_CONF_USE_FULL_DUPLEX
config |= BMCR_FULLDPLX;
#else
config &= ~BMCR_FULLDPLX;
#endif
#endif
// update Phy ctrl register
vWriteMDIO(macb, PHY_PHYCR, phy_ctrl);
// update ctrl register
vWriteMDIO(macb, PHY_BMCR, config);
// loop while link status isn't OK
do {
mii_status = ulReadMDIO(macb, PHY_BMSR);
} while (!(mii_status & BMSR_LSTATUS));
// read the LPA configuration of the PHY
lpa = ulReadMDIO(macb, PHY_LPA);
// read the MACB config register
config = AVR32_MACB.ncfgr;
// if 100MB needed
if ((lpa & advertise) & (LPA_100HALF | LPA_100FULL))
{
config |= AVR32_MACB_SPD_MASK;
}
else
{
config &= ~(AVR32_MACB_SPD_MASK);
}
// if FULL DUPLEX needed
if ((lpa & advertise) & (LPA_10FULL | LPA_100FULL))
{
config |= AVR32_MACB_FD_MASK;
}
else
{
config &= ~(AVR32_MACB_FD_MASK);
}
// write the MACB config register
macb->ncfgr = config;
return TRUE;
}
return FALSE;
}
