This is an alternative to my previous patch for the non-receiving RF212
problem. Apparently not all state changes to RX_ON must come from
TRX_OFF, but only the *first* such change. This can either be done in
_start with another per-dev variable or in _hw_init by switching to
TRX_OFF unconditionally. The next RX_ON/TX_ON state switch will
correctly execute and leave the transceiver in TX_ON after completion,
from which we can then go on to further TRX states.
Signed-off-by: Phoebe Buckheister <phoebe.buckheis...@itwm.fraunhofer.de>
---
drivers/net/ieee802154/at86rf230.c | 24 +++---------------------
1 file changed, 3 insertions(+), 21 deletions(-)
diff --git a/drivers/net/ieee802154/at86rf230.c
b/drivers/net/ieee802154/at86rf230.c
index d88c586..68d3d9c 100644
--- a/drivers/net/ieee802154/at86rf230.c
+++ b/drivers/net/ieee802154/at86rf230.c
@@ -931,17 +931,9 @@ static int at86rf230_hw_init(struct at86rf230_local *lp)
if (rc)
return rc;
- dev_info(&lp->spi->dev, "Status: %02x\n", status);
- if (status == STATE_P_ON) {
- rc = at86rf230_write_subreg(lp, SR_TRX_CMD,
STATE_FORCE_TRX_OFF);
- if (rc)
- return rc;
- msleep(1);
- rc = at86rf230_read_subreg(lp, SR_TRX_STATUS, &status);
- if (rc)
- return rc;
- dev_info(&lp->spi->dev, "Status: %02x\n", status);
- }
+ rc = at86rf230_write_subreg(lp, SR_TRX_CMD, STATE_FORCE_TRX_OFF);
+ if (rc)
+ return rc;
/* configure irq polarity, defaults to high active */
if (pdata->irq_type & (IRQF_TRIGGER_FALLING | IRQF_TRIGGER_LOW))
@@ -969,16 +961,6 @@ static int at86rf230_hw_init(struct at86rf230_local *lp)
/* Wait the next SLEEP cycle */
msleep(100);
- rc = at86rf230_write_subreg(lp, SR_TRX_CMD, STATE_TX_ON);
- if (rc)
- return rc;
- msleep(1);
-
- rc = at86rf230_read_subreg(lp, SR_TRX_STATUS, &status);
- if (rc)
- return rc;
- dev_info(&lp->spi->dev, "Status: %02x\n", status);
-
rc = at86rf230_read_subreg(lp, SR_DVDD_OK, &status);
if (rc)
return rc;
--
1.7.9.5
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