diff options
| author |   Alexander Aring <alex.aring@gmail.com> | 2014-07-03 00:20:47 +0200 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2014-07-07 21:29:24 -0700 |
| commit | a7d7eda9054450320d5f7144ff8a0767ab619da3 (patch) | |
| tree | 545fc2d4ab0e6d25c4711b8aa2c8cb6fed142c13 /drivers/net/ieee802154 | |
| parent | at86rf230: remove is212 and add driver data (diff) | |
| download | linux-dev-a7d7eda9054450320d5f7144ff8a0767ab619da3.tar.xz linux-dev-a7d7eda9054450320d5f7144ff8a0767ab619da3.zip | |
at86rf230: add support for at86rf23x desense
To set the CCA_ED_THRES register the calculation for at86rf23x is
different than for at86rf212. This patch adds a new callback for this
calculation in chip data struct.
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ieee802154')
| -rw-r--r-- | drivers/net/ieee802154/at86rf230.c | 22 |
1 files changed, 18 insertions, 4 deletions
diff --git a/drivers/net/ieee802154/at86rf230.c b/drivers/net/ieee802154/at86rf230.c index 694f5cf339e3..6556fecec5e2 100644 --- a/drivers/net/ieee802154/at86rf230.c +++ b/drivers/net/ieee802154/at86rf230.c @@ -46,6 +46,7 @@ struct at86rf2xx_chip_data { int rssi_base_val; int (*set_channel)(struct at86rf230_local *, int, int); + int (*get_desense_steps)(struct at86rf230_local *, s32); }; struct at86rf230_local { @@ -819,17 +820,27 @@ at86rf230_set_cca_mode(struct ieee802154_dev *dev, u8 mode) } static int +at86rf212_get_desens_steps(struct at86rf230_local *lp, s32 level) +{ + return (level - lp->data->rssi_base_val) * 100 / 207; +} + +static int +at86rf23x_get_desens_steps(struct at86rf230_local *lp, s32 level) +{ + return (level - lp->data->rssi_base_val) / 2; +} + +static int at86rf230_set_cca_ed_level(struct ieee802154_dev *dev, s32 level) { struct at86rf230_local *lp = dev->priv; - int desens_steps; if (level < lp->data->rssi_base_val || level > 30) return -EINVAL; - desens_steps = (level - lp->data->rssi_base_val) * 100 / 207; - - return at86rf230_write_subreg(lp, SR_CCA_ED_THRES, desens_steps); + return at86rf230_write_subreg(lp, SR_CCA_ED_THRES, + lp->data->get_desense_steps(lp, level)); } static int @@ -889,16 +900,19 @@ static struct ieee802154_ops at86rf230_ops = { static struct at86rf2xx_chip_data at86rf233_data = { .rssi_base_val = -91, .set_channel = at86rf23x_set_channel, + .get_desense_steps = at86rf23x_get_desens_steps }; static struct at86rf2xx_chip_data at86rf231_data = { .rssi_base_val = -91, .set_channel = at86rf23x_set_channel, + .get_desense_steps = at86rf23x_get_desens_steps }; static struct at86rf2xx_chip_data at86rf212_data = { .rssi_base_val = -100, .set_channel = at86rf212_set_channel, + .get_desense_steps = at86rf212_get_desens_steps }; static void at86rf230_irqwork(struct work_struct *work) |