mac802154: at86rf230: add hw flags and merge ops

This patch adds new mac802154 hw flags for transmit power, csma and
listen before transmit (lbt). These flags indicates that the transceiver
supports these features. If the flags are set and the driver doesn't
implement the necessary functions, then ieee802154_register_device
returns -ENOSYS "Function not implemented".

This patch merges also all at86rf230 operations into one operations structure
and set the right hw flags for the at86rf230 transceivers.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 37 insertions, 44 deletions

diff --git a/drivers/net/ieee802154/at86rf230.c b/drivers/net/ieee802154/at86rf230.c
index 50899416f668..dca6bae1402c 100644
--- a/drivers/net/ieee802154/at86rf230.c
+++ b/drivers/net/ieee802154/at86rf230.c
@@ -784,7 +784,7 @@ at86rf230_set_hw_addr_filt(struct ieee802154_dev *dev,
 }
 
 static int
-at86rf212_set_txpower(struct ieee802154_dev *dev, int db)
+at86rf230_set_txpower(struct ieee802154_dev *dev, int db)
 {
 	struct at86rf230_local *lp = dev->priv;
 
@@ -803,7 +803,7 @@ at86rf212_set_txpower(struct ieee802154_dev *dev, int db)
 }
 
 static int
-at86rf212_set_lbt(struct ieee802154_dev *dev, bool on)
+at86rf230_set_lbt(struct ieee802154_dev *dev, bool on)
 {
 	struct at86rf230_local *lp = dev->priv;
 
@@ -811,7 +811,7 @@ at86rf212_set_lbt(struct ieee802154_dev *dev, bool on)
 }
 
 static int
-at86rf212_set_cca_mode(struct ieee802154_dev *dev, u8 mode)
+at86rf230_set_cca_mode(struct ieee802154_dev *dev, u8 mode)
 {
 	struct at86rf230_local *lp = dev->priv;
 
@@ -819,7 +819,7 @@ at86rf212_set_cca_mode(struct ieee802154_dev *dev, u8 mode)
 }
 
 static int
-at86rf212_set_cca_ed_level(struct ieee802154_dev *dev, s32 level)
+at86rf230_set_cca_ed_level(struct ieee802154_dev *dev, s32 level)
 {
 	struct at86rf230_local *lp = dev->priv;
 	int desens_steps;
@@ -833,7 +833,7 @@ at86rf212_set_cca_ed_level(struct ieee802154_dev *dev, s32 level)
 }
 
 static int
-at86rf212_set_csma_params(struct ieee802154_dev *dev, u8 min_be, u8 max_be,
+at86rf230_set_csma_params(struct ieee802154_dev *dev, u8 min_be, u8 max_be,
 			  u8 retries)
 {
 	struct at86rf230_local *lp = dev->priv;
@@ -854,7 +854,7 @@ at86rf212_set_csma_params(struct ieee802154_dev *dev, u8 min_be, u8 max_be,
 }
 
 static int
-at86rf212_set_frame_retries(struct ieee802154_dev *dev, s8 retries)
+at86rf230_set_frame_retries(struct ieee802154_dev *dev, s8 retries)
 {
 	struct at86rf230_local *lp = dev->priv;
 	int rc = 0;
@@ -878,22 +878,12 @@ static struct ieee802154_ops at86rf230_ops = {
 	.start = at86rf230_start,
 	.stop = at86rf230_stop,
 	.set_hw_addr_filt = at86rf230_set_hw_addr_filt,
-};
-
-static struct ieee802154_ops at86rf212_ops = {
-	.owner = THIS_MODULE,
-	.xmit = at86rf230_xmit,
-	.ed = at86rf230_ed,
-	.set_channel = at86rf230_channel,
-	.start = at86rf230_start,
-	.stop = at86rf230_stop,
-	.set_hw_addr_filt = at86rf230_set_hw_addr_filt,
-	.set_txpower = at86rf212_set_txpower,
-	.set_lbt = at86rf212_set_lbt,
-	.set_cca_mode = at86rf212_set_cca_mode,
-	.set_cca_ed_level = at86rf212_set_cca_ed_level,
-	.set_csma_params = at86rf212_set_csma_params,
-	.set_frame_retries = at86rf212_set_frame_retries,
+	.set_txpower = at86rf230_set_txpower,
+	.set_lbt = at86rf230_set_lbt,
+	.set_cca_mode = at86rf230_set_cca_mode,
+	.set_cca_ed_level = at86rf230_set_cca_ed_level,
+	.set_csma_params = at86rf230_set_csma_params,
+	.set_frame_retries = at86rf230_set_frame_retries,
 };
 
 static void at86rf230_irqwork(struct work_struct *work)
@@ -1048,7 +1038,6 @@ static int at86rf230_probe(struct spi_device *spi)
 	work_func_t irq_worker;
 	int rc, irq_type;
 	const char *chip;
-	struct ieee802154_ops *ops = NULL;
 
 	if (!spi->irq) {
 		dev_err(&spi->dev, "no IRQ specified\n");
@@ -1084,9 +1073,25 @@ static int at86rf230_probe(struct spi_device *spi)
 		usleep_range(120, 240);
 	}
 
+	dev = ieee802154_alloc_device(sizeof(*lp), &at86rf230_ops);
+	if (!dev)
+		return -ENOMEM;
+
+	lp = dev->priv;
+	lp->dev = dev;
+	lp->part = part;
+	lp->vers = version;
+
+	lp->spi = spi;
+
+	dev->parent = &spi->dev;
+	dev->extra_tx_headroom = 0;
+	dev->flags = IEEE802154_HW_OMIT_CKSUM | IEEE802154_HW_AACK |
+		     IEEE802154_HW_TXPOWER | IEEE802154_HW_CSMA;
+
 	rc = __at86rf230_detect_device(spi, &man_id, &part, &version);
 	if (rc < 0)
-		return rc;
+		goto free_dev;
 
 	if (man_id != 0x001f) {
 		dev_err(&spi->dev, "Non-Atmel dev found (MAN_ID %02x %02x)\n",
@@ -1097,44 +1102,31 @@ static int at86rf230_probe(struct spi_device *spi)
 	switch (part) {
 	case 2:
 		chip = "at86rf230";
+		rc = -ENOTSUPP;
 		/* FIXME: should be easy to support; */
 		break;
 	case 3:
 		chip = "at86rf231";
-		ops = &at86rf230_ops;
 		break;
 	case 7:
 		chip = "at86rf212";
 		if (version == 1)
-			ops = &at86rf212_ops;
+			dev->flags |= IEEE802154_HW_LBT;
+		else
+			rc = -ENOTSUPP;
 		break;
 	case 11:
 		chip = "at86rf233";
-		ops = &at86rf230_ops;
 		break;
 	default:
 		chip = "UNKNOWN";
+		rc = -ENOTSUPP;
 		break;
 	}
 
 	dev_info(&spi->dev, "Detected %s chip version %d\n", chip, version);
-	if (!ops)
-		return -ENOTSUPP;
-
-	dev = ieee802154_alloc_device(sizeof(*lp), ops);
-	if (!dev)
-		return -ENOMEM;
-
-	lp = dev->priv;
-	lp->dev = dev;
-	lp->part = part;
-	lp->vers = version;
-
-	lp->spi = spi;
-
-	dev->parent = &spi->dev;
-	dev->extra_tx_headroom = 0;
-	dev->flags = IEEE802154_HW_OMIT_CKSUM | IEEE802154_HW_AACK;
+	if (rc < 0)
+		goto free_dev;
 
 	irq_type = irq_get_trigger_type(spi->irq);
 	if (!irq_type)
@@ -1185,6 +1177,7 @@ static int at86rf230_probe(struct spi_device *spi)
 err_hw_init:
 	flush_work(&lp->irqwork);
 	mutex_destroy(&lp->bmux);
+free_dev:
 	ieee802154_free_device(lp->dev);
 
 	return rc;