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net: ieee802154: adf7242: Fix OCL calibration runs

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Reissuing RC_RX every 400ms - to adjust for offset drift in
receiver see datasheet page 61, OCL section.

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
Signed-off-by: Stefan Schmidt <stefan@datenfreihafen.org>
This commit is contained in:
Michael Hennerich 2018-06-25 16:57:37 +03:00 committed by Stefan Schmidt
parent 36d26d6b62
commit 58e9683d14
1 changed files with 28 additions and 1 deletions
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29
drivers/net/ieee802154/adf7242.c
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@ -275,6 +275,8 @@ struct adf7242_local {
struct spi_message stat_msg;
struct spi_transfer stat_xfer;
struct dentry *debugfs_root;
struct delayed_work work;
struct workqueue_struct *wqueue;
unsigned long flags;
int tx_stat;
bool promiscuous;
@ -575,10 +577,26 @@ static int adf7242_cmd_rx(struct adf7242_local *lp)
/* Wait until the ACK is sent */
adf7242_wait_status(lp, RC_STATUS_PHY_RDY, RC_STATUS_MASK, __LINE__);
adf7242_clear_irqstat(lp);
mod_delayed_work(lp->wqueue, &lp->work, msecs_to_jiffies(400));
return adf7242_cmd(lp, CMD_RC_RX);
}
static void adf7242_rx_cal_work(struct work_struct *work)
{
struct adf7242_local *lp =
container_of(work, struct adf7242_local, work.work);
/* Reissuing RC_RX every 400ms - to adjust for offset
* drift in receiver (datasheet page 61, OCL section)
*/
if (!test_bit(FLAG_XMIT, &lp->flags)) {
adf7242_cmd(lp, CMD_RC_PHY_RDY);
adf7242_cmd_rx(lp);
}
}
static int adf7242_set_txpower(struct ieee802154_hw *hw, int mbm)
{
struct adf7242_local *lp = hw->priv;
@ -686,7 +704,7 @@ static int adf7242_start(struct ieee802154_hw *hw)
enable_irq(lp->spi->irq);
set_bit(FLAG_START, &lp->flags);
return adf7242_cmd(lp, CMD_RC_RX);
return adf7242_cmd_rx(lp);
}
static void adf7242_stop(struct ieee802154_hw *hw)
@ -694,6 +712,7 @@ static void adf7242_stop(struct ieee802154_hw *hw)
struct adf7242_local *lp = hw->priv;
disable_irq(lp->spi->irq);
cancel_delayed_work_sync(&lp->work);
adf7242_cmd(lp, CMD_RC_IDLE);
clear_bit(FLAG_START, &lp->flags);
adf7242_clear_irqstat(lp);
@ -817,6 +836,7 @@ static int adf7242_xmit(struct ieee802154_hw *hw, struct sk_buff *skb)
/* ensure existing instances of the IRQ handler have completed */
disable_irq(lp->spi->irq);
set_bit(FLAG_XMIT, &lp->flags);
cancel_delayed_work_sync(&lp->work);
reinit_completion(&lp->tx_complete);
adf7242_cmd(lp, CMD_RC_PHY_RDY);
adf7242_clear_irqstat(lp);
@ -955,6 +975,7 @@ static irqreturn_t adf7242_isr(int irq, void *data)
unsigned int xmit;
u8 irq1;
mod_delayed_work(lp->wqueue, &lp->work, msecs_to_jiffies(400));
adf7242_read_reg(lp, REG_IRQ1_SRC1, &irq1);
if (!(irq1 & (IRQ_RX_PKT_RCVD | IRQ_CSMA_CA)))
@ -1244,6 +1265,9 @@ static int adf7242_probe(struct spi_device *spi)
spi_message_add_tail(&lp->stat_xfer, &lp->stat_msg);
spi_set_drvdata(spi, lp);
INIT_DELAYED_WORK(&lp->work, adf7242_rx_cal_work);
lp->wqueue = alloc_ordered_workqueue(dev_name(&spi->dev),
WQ_MEM_RECLAIM);
ret = adf7242_hw_init(lp);
if (ret)
@ -1287,6 +1311,9 @@ static int adf7242_remove(struct spi_device *spi)
if (!IS_ERR_OR_NULL(lp->debugfs_root))
debugfs_remove_recursive(lp->debugfs_root);
cancel_delayed_work_sync(&lp->work);
destroy_workqueue(lp->wqueue);
ieee802154_unregister_hw(lp->hw);
mutex_destroy(&lp->bmux);
ieee802154_free_hw(lp->hw);