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Commit a7d7eda9 authored by Alexander Aring's avatar Alexander Aring Committed by David S. Miller
Browse files

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: default avatarAlexander Aring <alex.aring@gmail.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent a53d1f7c

drivers/net/ieee802154/at86rf230.c

+18 −4
Original line number Diff line number Diff line
@@ -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)