diff options
Diffstat (limited to 'drivers/net/ieee802154/at86rf230.c')
| -rw-r--r-- | drivers/net/ieee802154/at86rf230.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/drivers/net/ieee802154/at86rf230.c b/drivers/net/ieee802154/at86rf230.c index bd1ef0b3bee9..9afb4b9d7c93 100644 --- a/drivers/net/ieee802154/at86rf230.c +++ b/drivers/net/ieee802154/at86rf230.c @@ -753,6 +753,30 @@ at86rf230_set_hw_addr_filt(struct ieee802154_dev *dev, return 0; } +static int +at86rf212_set_txpower(struct ieee802154_dev *dev, int db) +{ + struct at86rf230_local *lp = dev->priv; + int rc; + + /* typical maximum output is 5dBm with RG_PHY_TX_PWR 0x60, lower five + * bits decrease power in 1dB steps. 0x60 represents extra PA gain of + * 0dB. + * thus, supported values for db range from -26 to 5, for 31dB of + * reduction to 0dB of reduction. + */ + if (db > 5 || db < -26) + return -EINVAL; + + db = -(db - 5); + + rc = __at86rf230_write(lp, RG_PHY_TX_PWR, 0x60 | db); + if (rc) + return rc; + + return 0; +} + static struct ieee802154_ops at86rf230_ops = { .owner = THIS_MODULE, .xmit = at86rf230_xmit, @@ -771,6 +795,7 @@ static struct ieee802154_ops at86rf212_ops = { .start = at86rf230_start, .stop = at86rf230_stop, .set_hw_addr_filt = at86rf230_set_hw_addr_filt, + .set_txpower = at86rf212_set_txpower, }; static void at86rf230_irqwork(struct work_struct *work) |