Add module parameter ext_rx_tx to support designs that use an external
transmitter/receiver
Signed-off-by: Walter J. Mack<wmack@xxxxxxxxxxxxxxx>
---
diff --git a/drivers/net/ieee802154/mrf24j40.c
b/drivers/net/ieee802154/mrf24j40.c
index 9e6a124..6f87889 100644
--- a/drivers/net/ieee802154/mrf24j40.c
+++ b/drivers/net/ieee802154/mrf24j40.c
@@ -26,6 +26,10 @@
#include <net/mac802154.h>
#include <net/ieee802154.h>
+static bool ext_rx_tx = false ;
+module_param(ext_rx_tx, bool, 0444);
+MODULE_PARM_DESC(ext_rx_tx, "turn on statemachine to manage external
tx/rx");
+
/* MRF24J40 Short Address Registers */
#define REG_RXMCR 0x00 /* Receive MAC control */
#define REG_PANIDL 0x01 /* PAN ID (low) */
@@ -63,6 +67,8 @@
#define REG_SLPCON1 0x220
#define REG_WAKETIMEL 0x222 /* Wake-up Time Match Value Low */
#define REG_WAKETIMEH 0x223 /* Wake-up Time Match Value High */
+#define REG_TESTMODE 0x22f /* test mode and state machine control
register */
+
#define REG_RX_FIFO 0x300 /* Receive FIFO */
/* Device configuration: Only channels 11-26 on page 0 are supported. */
@@ -679,6 +685,13 @@ static int mrf24j40_hw_init(struct mrf24j40 *devrec)
udelay(192);
+ if (ext_rx_tx){
+ ret = write_long_reg(devrec, REG_TESTMODE, 0x0f);
+ if (ret)
+ goto err_ret;
+ }
+
+
/* Set RX Mode. RXMCR<1:0>: 0x0 normal, 0x1 promisc, 0x2 error */
ret = read_short_reg(devrec, REG_RXMCR, &val);
if (ret)
--
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