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drivers: ethernet: enc28j60: Add DT property to set Rx filter

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Byte value written to the device's
ERXFCON: ETHERNET RECEIVE FILTER CONTROL REGISTER
Sets the devices receive packet filter, optional. If not set
in device tree previous hard coded value`0xA3` is used.
Uni, multi and broadcast packets with valid CRC are accepted.

Signed-off-by: Dean Sellers <dsellers@evos.com.au>
This commit is contained in:
Dean Sellers 2023-12-21 11:25:26 +10:00 • committed by Anas Nashif
commit e193f922cd
3 changed files with 16 additions and 1 deletions
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4
drivers/ethernet/eth_enc28j60.c
View file

@ -338,6 +338,7 @@ static void eth_enc28j60_gpio_callback(const struct device *dev,
static int eth_enc28j60_init_buffers(const struct device *dev)
{
uint8_t data_estat;
const struct eth_enc28j60_config *config = dev->config;
/* Reception buffers initialization */
eth_enc28j60_set_bank(dev, ENC28J60_REG_ERXSTL);
@ -372,7 +373,7 @@ static int eth_enc28j60_init_buffers(const struct device *dev)
eth_enc28j60_set_bank(dev, ENC28J60_REG_ERXFCON);
eth_enc28j60_write_reg(dev, ENC28J60_REG_ERXFCON,
ENC28J60_RECEIVE_FILTERS);
config->hw_rx_filter);
/* Waiting for OST */
/* 32 bits for this timer should be fine, rollover not an issue with initialisation */
@ -877,6 +878,7 @@ static int eth_enc28j60_init(const struct device *dev)
.interrupt = GPIO_DT_SPEC_INST_GET(inst, int_gpios), \
.full_duplex = DT_INST_PROP(0, full_duplex), \
.timeout = CONFIG_ETH_ENC28J60_TIMEOUT, \
.hw_rx_filter = DT_INST_PROP_OR(inst, hw_rx_filter, ENC28J60_RECEIVE_FILTERS), \
}; \
\
ETH_NET_DEVICE_DT_INST_DEFINE(inst, eth_enc28j60_init, NULL, &eth_enc28j60_runtime_##inst, \

4
drivers/ethernet/eth_enc28j60_priv.h
View file

@ -178,6 +178,9 @@
* - Multicast
* - Broadcast
* - CRC Check
*
* Used as default if hw-rx-filter property
* absent in DT
*/
#define ENC28J60_RECEIVE_FILTERS 0xA3
@ -223,6 +226,7 @@ struct eth_enc28j60_config {
struct gpio_dt_spec interrupt;
uint8_t full_duplex;
int32_t timeout;
uint8_t hw_rx_filter;
};
struct eth_enc28j60_runtime {

9
dts/bindings/ethernet/microchip,enc28j60.yaml
View file

@ -21,3 +21,12 @@ properties:
type: boolean
description: |
Optional feature flag - Enables full duplex reception and transmission.
hw-rx-filter:
type: int
description: |
Byte value written to the device's
ERXFCON: ETHERNET RECEIVE FILTER CONTROL REGISTER
Sets the devices receive packet filter, optional
If not set in device tree `0xA3` is used, uni, multi and broadcast
packets with valid CRC are accepted.