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>
diff --git a/drivers/net/ieee802154/at86rf230.c b/drivers/net/ieee802154/at86rf230.c
index 694f5cf..6556fece 100644
--- a/drivers/net/ieee802154/at86rf230.c
+++ b/drivers/net/ieee802154/at86rf230.c
@@ -46,6 +46,7 @@
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 @@
}
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 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)
