Since the AT86RF2xy chips are mostly compatible, this is only a small
change. The at86rf230 driver already supports the RF212 in most places,
only three small adjustments are required:
* force the initial state after P_ON to FORCE_TRX_OFF to work around a
documented erratum
* add a is_rf212 discriminator, used now to check which channel range
is supported by the transceiver
* channels_supported depends on the frequency of the transceiver, and
thus is_rf212
Signed-off-by: Phoebe Buckheister <phoebe.buckheis...@itwm.fraunhofer.de>
---
drivers/net/ieee802154/at86rf230.c | 24 ++++++++++++++++++++----
1 file changed, 20 insertions(+), 4 deletions(-)
diff --git a/drivers/net/ieee802154/at86rf230.c
b/drivers/net/ieee802154/at86rf230.c
index ab31544..57f94b6 100644
--- a/drivers/net/ieee802154/at86rf230.c
+++ b/drivers/net/ieee802154/at86rf230.c
@@ -55,6 +55,11 @@ struct at86rf230_local {
bool is_tx;
};
+static inline int is_rf212(struct at86rf230_local *local)
+{
+ return local->part == 7;
+}
+
#define RG_TRX_STATUS (0x01)
#define SR_TRX_STATUS 0x01, 0x1f, 0
#define SR_RESERVED_01_3 0x01, 0x20, 5
@@ -527,7 +532,9 @@ at86rf230_channel(struct ieee802154_dev *dev, int page, int
channel)
might_sleep();
- if (page != 0 || channel < 11 || channel > 26) {
+ if (page != 0
+ || (!is_rf212(lp) && (channel < 11 || channel > 26))
+ || (is_rf212(lp) && (channel < 0 || channel > 10))) {
WARN_ON(1);
return -EINVAL;
}
@@ -753,13 +760,14 @@ static int at86rf230_hw_init(struct at86rf230_local *lp)
int rc, irq_pol;
u8 status;
+
rc = at86rf230_read_subreg(lp, SR_TRX_STATUS, &status);
if (rc)
return rc;
dev_info(&lp->spi->dev, "Status: %02x\n", status);
if (status == STATE_P_ON) {
- rc = at86rf230_write_subreg(lp, SR_TRX_CMD, STATE_TRX_OFF);
+ rc = at86rf230_write_subreg(lp, SR_TRX_CMD,
STATE_FORCE_TRX_OFF);
if (rc)
return rc;
msleep(1);
@@ -867,8 +875,6 @@ static int at86rf230_probe(struct spi_device *spi)
dev->parent = &spi->dev;
dev->extra_tx_headroom = 0;
- /* We do support only 2.4 Ghz */
- dev->phy->channels_supported[0] = 0x7FFF800;
dev->flags = IEEE802154_HW_OMIT_CKSUM;
if (pdata->irq_type & (IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING)) {
@@ -946,11 +952,21 @@ static int at86rf230_probe(struct spi_device *spi)
chip = "at86rf231";
supported = 1;
break;
+ case 7:
+ chip = "at86rf212";
+ supported = 1;
+ break;
default:
chip = "UNKNOWN";
break;
}
+ if (is_rf212(lp)) {
+ dev->phy->channels_supported[0] = 0x00007FF;
+ } else {
+ dev->phy->channels_supported[0] = 0x7FFF800;
+ }
+
dev_info(&spi->dev, "Detected %s chip version %d\n", chip, lp->vers);
if (!supported) {
rc = -ENOTSUPP;
--
1.7.9.5
------------------------------------------------------------------------------
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