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authorAlexander Aring <alex.aring@gmail.com>2014-07-03 00:20:47 +0200
committerDavid S. Miller <davem@davemloft.net>2014-07-08 06:29:24 +0200
commita7d7eda9054450320d5f7144ff8a0767ab619da3 (patch)
tree545fc2d4ab0e6d25c4711b8aa2c8cb6fed142c13 /drivers/net/ieee802154/at86rf230.c
parentat86rf230: remove is212 and add driver data (diff)
downloadlinux-a7d7eda9054450320d5f7144ff8a0767ab619da3.tar.xz
linux-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 '')
-rw-r--r--drivers/net/ieee802154/at86rf230.c22
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)