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hal_mac_lld.c - added support for fixed link connection #83

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hal_mac_lld.c - added support for fixed link connection #83

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d81f1bf
hal_mac_lld.c - added support for fixed link connection
vrsanskytom Nov 2, 2023
20bcebc
modified defines to match conventions
vrsanskytom Nov 3, 2023
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14 changes: 12 additions & 2 deletions os/hal/ports/STM32/LLD/MACv2/hal_mac_lld.c
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Original file line number Diff line number Diff line change
Expand Up @@ -651,10 +651,12 @@ void mac_lld_release_receive_descriptor(MACReceiveDescriptor *rdp) {
* @notapi
*/
bool mac_lld_poll_link_status(MACDriver *macp) {
uint32_t maccr, bmsr, bmcr;
uint32_t maccr;

maccr = ETH->MACCR;

/* Fixed link connection defined in board.h.*/
#if (!STM32_MAC_PHY_FIXED_LINK)
uint32_t bmsr, bmcr;
/* PHY CR and SR registers read.*/
(void)mii_read(macp, MII_BMSR);
bmsr = mii_read(macp, MII_BMSR);
Expand Down Expand Up @@ -701,6 +703,14 @@ bool mac_lld_poll_link_status(MACDriver *macp) {
else
maccr &= ~ETH_MACCR_DM;
}
/* Fixed link type defined in board.h.*/
#elif STM32_MAC_PHY_FIXED_LINK_TYPE == LINK_100_FULLDUPLEX
maccr |= ETH_MACCR_FES;
maccr |= ETH_MACCR_DM;
#elif STM32_MAC_PHY_FIXED_LINK_TYPE == LINK_10_FULLDUPLEX
maccr &= ~ETH_MACCR_FES;
maccr |= ETH_MACCR_DM;
#endif

/* Changes the mode in the MAC.*/
ETH->MACCR = maccr;
Expand Down
22 changes: 22 additions & 0 deletions os/hal/ports/STM32/LLD/MACv2/hal_mac_lld.h
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Original file line number Diff line number Diff line change
Expand Up @@ -129,6 +129,14 @@
#define STM32_TDES3_FL 0x00007FFF
/** @} */

/**
* @name Fixed link types
* @{
*/
#define LINK_100_FULLDUPLEX 0x00
#define LINK_10_FULLDUPLEX 0x01
/** @} */

/*===========================================================================*/
/* Driver pre-compile time settings. */
/*===========================================================================*/
Expand Down Expand Up @@ -200,6 +208,20 @@
#if !defined(STM32_MAC_IP_CHECKSUM_OFFLOAD) || defined(__DOXYGEN__)
#define STM32_MAC_IP_CHECKSUM_OFFLOAD 0
#endif

/**
* @brief Fixed link connection
*/
#if !defined(STM32_MAC_PHY_FIXED_LINK) || defined(__DOXYGEN__)
#define STM32_MAC_PHY_FIXED_LINK FALSE
#endif

/**
* @brief Fixed link connection type
*/
#if !defined(STM32_MAC_PHY_FIXED_LINK_TYPE) || defined(__DOXYGEN__)
#define STM32_MAC_PHY_FIXED_LINK_TYPE LINK_100_FULLDUPLEX
#endif
/** @} */

/*===========================================================================*/
Expand Down