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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>
This commit is contained in:
Alexander Aring 2014-07-03 00:20:47 +02:00 committed by David S. Miller
parent a53d1f7c3d
commit a7d7eda905
1 changed files with 18 additions and 4 deletions
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22
drivers/net/ieee802154/at86rf230.c
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@ -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 {
@ -818,18 +819,28 @@ at86rf230_set_cca_mode(struct ieee802154_dev *dev, u8 mode)
return at86rf230_write_subreg(lp, SR_CCA_MODE, 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)