There is a tx semaphore that controls a single access to the
transmission service. The device is capable to manage a single
transmission call at a time. Multiple requests need to wait
for the resource to be free.
This commit adds the initial release to the tx semaphore.
Jira: ZEP-895
Change-Id: Ic9879cfd15bb1494644b2cf0f4565f7e6a2c1c22
Signed-off-by: Juan Manuel Cruz <juan.m.cruz.alcaraz@intel.com>
SPI bus is a shared resource between tx and rx processes.
The access to it must be synchronized to allow a rx process to
happen even when a tx process is taking place.
ECON1 register must be saved by the rx process and recovered
at the end to ensure that the tx process will continue operating
in the same register bank.
Change-Id: Ie9358bf02bef8ddb5bdf76c8847e998a627e5395
Signed-off-by: Juan Manuel Cruz Alcaraz <juan.m.cruz.alcaraz@intel.com>
Transmision status is polled. Remove rx interruption enabling and
clearance.
Change-Id: I2893f89533adef5f77c711a36b5c1bbe21c48a23
Signed-off-by: Juan Manuel Cruz Alcaraz <juan.m.cruz.alcaraz@intel.com>
Even values in ERXRDPT register may corrupt the receive buffer.
Set ERXRDPT value one address behind the next value.
If it is zero, set the value to the reception buffer end address.
Change-Id: I7150e5190c5bfb7bfafbff598eea1c26959643d0
Signed-off-by: Juan Manuel Cruz Alcaraz <juan.m.cruz.alcaraz@intel.com>
The Receive Packet Pending Interrupt Flag (EIR.PKTIF) does not
reliably/accurately report the status of pending packets.
Reception fails intermittently. The EPKTCNT register is used instead.
Change-Id: I599c3b4df1b74d769dd7104e5c6e253d9cf63bd4
Signed-off-by: Juan Manuel Cruz Alcaraz <juan.m.cruz.alcaraz@intel.com>
Adds the ENC28J60 Ethernet module driver.
Origin: Original
JIRA: ZEP-291
Change-Id: I2b5790ecb251f9059f172bcaafadef24bd27207a
Signed-off-by: Juan Manuel Cruz <juan.m.cruz.alcaraz@intel.com>
