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Fixed MTP to work with TWRP

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awab228 2018-06-19 23:16:04 +02:00
commit f6dfaef42e
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65
drivers/net/ieee802154/Kconfig Normal file
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menuconfig IEEE802154_DRIVERS
tristate "IEEE 802.15.4 drivers"
depends on NETDEVICES && IEEE802154
default y
---help---
Say Y here to get to see options for IEEE 802.15.4 Low-Rate
Wireless Personal Area Network device drivers. This option alone
does not add any kernel code.
If you say N, all options in this submenu will be skipped and
disabled.
config IEEE802154_FAKEHARD
tristate "Fake LR-WPAN driver with several interconnected devices"
depends on IEEE802154_DRIVERS
---help---
Say Y here to enable the fake driver that serves as an example
of HardMAC device driver.
This driver can also be built as a module. To do so say M here.
The module will be called 'fakehard'.
config IEEE802154_FAKELB
depends on IEEE802154_DRIVERS && MAC802154
tristate "IEEE 802.15.4 loopback driver"
---help---
Say Y here to enable the fake driver that can emulate a net
of several interconnected radio devices.
This driver can also be built as a module. To do so say M here.
The module will be called 'fakelb'.
config IEEE802154_AT86RF230
depends on IEEE802154_DRIVERS && MAC802154
tristate "AT86RF230/231/233/212 transceiver driver"
depends on SPI
select REGMAP_SPI
---help---
Say Y here to enable the at86rf230/231/233/212 SPI 802.15.4 wireless
controller.
This driver can also be built as a module. To do so, say M here.
the module will be called 'at86rf230'.
config IEEE802154_MRF24J40
tristate "Microchip MRF24J40 transceiver driver"
depends on IEEE802154_DRIVERS && MAC802154
depends on SPI
---help---
Say Y here to enable the MRF24J20 SPI 802.15.4 wireless
controller.
This driver can also be built as a module. To do so, say M here.
the module will be called 'mrf24j40'.
config IEEE802154_CC2520
depends on IEEE802154_DRIVERS && MAC802154
tristate "CC2520 transceiver driver"
depends on SPI
---help---
Say Y here to enable the CC2520 SPI 802.15.4 wireless
controller.
This driver can also be built as a module. To do so, say M here.
the module will be called 'cc2520'.

5
drivers/net/ieee802154/Makefile Normal file
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obj-$(CONFIG_IEEE802154_FAKEHARD) += fakehard.o
obj-$(CONFIG_IEEE802154_FAKELB) += fakelb.o
obj-$(CONFIG_IEEE802154_AT86RF230) += at86rf230.o
obj-$(CONFIG_IEEE802154_MRF24J40) += mrf24j40.o
obj-$(CONFIG_IEEE802154_CC2520) += cc2520.o

1624
drivers/net/ieee802154/at86rf230.c Normal file
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1039
drivers/net/ieee802154/cc2520.c Normal file
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430
drivers/net/ieee802154/fakehard.c Normal file
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/*
* Sample driver for HardMAC IEEE 802.15.4 devices
*
* Copyright (C) 2009 Siemens AG
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Written by:
* Dmitry Eremin-Solenikov <dmitry.baryshkov@siemens.com>
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/netdevice.h>
#include <linux/skbuff.h>
#include <linux/if_arp.h>
#include <net/af_ieee802154.h>
#include <net/ieee802154_netdev.h>
#include <net/ieee802154.h>
#include <net/nl802154.h>
#include <net/wpan-phy.h>
struct fakehard_priv {
struct wpan_phy *phy;
};
static struct wpan_phy *fake_to_phy(const struct net_device *dev)
{
struct fakehard_priv *priv = netdev_priv(dev);
return priv->phy;
}
/**
* fake_get_phy - Return a phy corresponding to this device.
* @dev: The network device for which to return the wan-phy object
*
* This function returns a wpan-phy object corresponding to the passed
* network device. Reference counter for wpan-phy object is incremented,
* so when the wpan-phy isn't necessary, you should drop the reference
* via @wpan_phy_put() call.
*/
static struct wpan_phy *fake_get_phy(const struct net_device *dev)
{
struct wpan_phy *phy = fake_to_phy(dev);
return to_phy(get_device(&phy->dev));
}
/**
* fake_get_pan_id - Retrieve the PAN ID of the device.
* @dev: The network device to retrieve the PAN of.
*
* Return the ID of the PAN from the PIB.
*/
static __le16 fake_get_pan_id(const struct net_device *dev)
{
BUG_ON(dev->type != ARPHRD_IEEE802154);
return cpu_to_le16(0xeba1);
}
/**
* fake_get_short_addr - Retrieve the short address of the device.
* @dev: The network device to retrieve the short address of.
*
* Returns the IEEE 802.15.4 short-form address cached for this
* device. If the device has not yet had a short address assigned
* then this should return 0xFFFF to indicate a lack of association.
*/
static __le16 fake_get_short_addr(const struct net_device *dev)
{
BUG_ON(dev->type != ARPHRD_IEEE802154);
return cpu_to_le16(0x1);
}
/**
* fake_get_dsn - Retrieve the DSN of the device.
* @dev: The network device to retrieve the DSN for.
*
* Returns the IEEE 802.15.4 DSN for the network device.
* The DSN is the sequence number which will be added to each
* packet or MAC command frame by the MAC during transmission.
*
* DSN means 'Data Sequence Number'.
*
* Note: This is in section 7.2.1.2 of the IEEE 802.15.4-2006
* document.
*/
static u8 fake_get_dsn(const struct net_device *dev)
{
BUG_ON(dev->type != ARPHRD_IEEE802154);
return 0x00; /* DSN are implemented in HW, so return just 0 */
}
/**
* fake_assoc_req - Make an association request to the HW.
* @dev: The network device which we are associating to a network.
* @addr: The coordinator with which we wish to associate.
* @channel: The channel on which to associate.
* @cap: The capability information field to use in the association.
*
* Start an association with a coordinator. The coordinator's address
* and PAN ID can be found in @addr.
*
* Note: This is in section 7.3.1 and 7.5.3.1 of the IEEE
* 802.15.4-2006 document.
*/
static int fake_assoc_req(struct net_device *dev,
struct ieee802154_addr *addr, u8 channel, u8 page, u8 cap)
{
struct wpan_phy *phy = fake_to_phy(dev);
mutex_lock(&phy->pib_lock);
phy->current_channel = channel;
phy->current_page = page;
mutex_unlock(&phy->pib_lock);
/* We simply emulate it here */
return ieee802154_nl_assoc_confirm(dev, fake_get_short_addr(dev),
IEEE802154_SUCCESS);
}
/**
* fake_assoc_resp - Send an association response to a device.
* @dev: The network device on which to send the response.
* @addr: The address of the device to respond to.
* @short_addr: The assigned short address for the device (if any).
* @status: The result of the association request.
*
* Queue the association response of the coordinator to another
* device's attempt to associate with the network which we
* coordinate. This is then added to the indirect-send queue to be
* transmitted to the end device when it polls for data.
*
* Note: This is in section 7.3.2 and 7.5.3.1 of the IEEE
* 802.15.4-2006 document.
*/
static int fake_assoc_resp(struct net_device *dev,
struct ieee802154_addr *addr, __le16 short_addr, u8 status)
{
return 0;
}
/**
* fake_disassoc_req - Disassociate a device from a network.
* @dev: The network device on which we're disassociating a device.
* @addr: The device to disassociate from the network.
* @reason: The reason to give to the device for being disassociated.
*
* This sends a disassociation notification to the device being
* disassociated from the network.
*
* Note: This is in section 7.5.3.2 of the IEEE 802.15.4-2006
* document, with the reason described in 7.3.3.2.
*/
static int fake_disassoc_req(struct net_device *dev,
struct ieee802154_addr *addr, u8 reason)
{
return ieee802154_nl_disassoc_confirm(dev, IEEE802154_SUCCESS);
}
/**
* fake_start_req - Start an IEEE 802.15.4 PAN.
* @dev: The network device on which to start the PAN.
* @addr: The coordinator address to use when starting the PAN.
* @channel: The channel on which to start the PAN.
* @bcn_ord: Beacon order.
* @sf_ord: Superframe order.
* @pan_coord: Whether or not we are the PAN coordinator or just
* requesting a realignment perhaps?
* @blx: Battery Life Extension feature bitfield.
* @coord_realign: Something to realign something else.
*
* If pan_coord is non-zero then this starts a network with the
* provided parameters, otherwise it attempts a coordinator
* realignment of the stated network instead.
*
* Note: This is in section 7.5.2.3 of the IEEE 802.15.4-2006
* document, with 7.3.8 describing coordinator realignment.
*/
static int fake_start_req(struct net_device *dev,
struct ieee802154_addr *addr, u8 channel, u8 page,
u8 bcn_ord, u8 sf_ord, u8 pan_coord, u8 blx,
u8 coord_realign)
{
struct wpan_phy *phy = fake_to_phy(dev);
mutex_lock(&phy->pib_lock);
phy->current_channel = channel;
phy->current_page = page;
mutex_unlock(&phy->pib_lock);
/* We don't emulate beacons here at all, so START should fail */
ieee802154_nl_start_confirm(dev, IEEE802154_INVALID_PARAMETER);
return 0;
}
/**
* fake_scan_req - Start a channel scan.
* @dev: The network device on which to perform a channel scan.
* @type: The type of scan to perform.
* @channels: The channel bitmask to scan.
* @duration: How long to spend on each channel.
*
* This starts either a passive (energy) scan or an active (PAN) scan
* on the channels indicated in the @channels bitmask. The duration of
* the scan is measured in terms of superframe duration. Specifically,
* the scan will spend aBaseSuperFrameDuration * ((2^n) + 1) on each
* channel.
*
* Note: This is in section 7.5.2.1 of the IEEE 802.15.4-2006 document.
*/
static int fake_scan_req(struct net_device *dev, u8 type, u32 channels,
u8 page, u8 duration)
{
u8 edl[27] = {};
return ieee802154_nl_scan_confirm(dev, IEEE802154_SUCCESS, type,
channels, page,
type == IEEE802154_MAC_SCAN_ED ? edl : NULL);
}
static struct ieee802154_mlme_ops fake_mlme = {
.assoc_req = fake_assoc_req,
.assoc_resp = fake_assoc_resp,
.disassoc_req = fake_disassoc_req,
.start_req = fake_start_req,
.scan_req = fake_scan_req,
.get_phy = fake_get_phy,
.get_pan_id = fake_get_pan_id,
.get_short_addr = fake_get_short_addr,
.get_dsn = fake_get_dsn,
};
static int ieee802154_fake_open(struct net_device *dev)
{
netif_start_queue(dev);
return 0;
}
static int ieee802154_fake_close(struct net_device *dev)
{
netif_stop_queue(dev);
return 0;
}
static netdev_tx_t ieee802154_fake_xmit(struct sk_buff *skb,
struct net_device *dev)
{
dev->stats.tx_packets++;
dev->stats.tx_bytes += skb->len;
/* FIXME: do hardware work here ... */
dev_kfree_skb(skb);
return NETDEV_TX_OK;
}
static int ieee802154_fake_ioctl(struct net_device *dev, struct ifreq *ifr,
int cmd)
{
struct sockaddr_ieee802154 *sa =
(struct sockaddr_ieee802154 *)&ifr->ifr_addr;
u16 pan_id, short_addr;
switch (cmd) {
case SIOCGIFADDR:
/* FIXME: fixed here, get from device IRL */
pan_id = le16_to_cpu(fake_get_pan_id(dev));
short_addr = le16_to_cpu(fake_get_short_addr(dev));
if (pan_id == IEEE802154_PANID_BROADCAST ||
short_addr == IEEE802154_ADDR_BROADCAST)
return -EADDRNOTAVAIL;
sa->family = AF_IEEE802154;
sa->addr.addr_type = IEEE802154_ADDR_SHORT;
sa->addr.pan_id = pan_id;
sa->addr.short_addr = short_addr;
return 0;
}
return -ENOIOCTLCMD;
}
static int ieee802154_fake_mac_addr(struct net_device *dev, void *p)
{
return -EBUSY; /* HW address is built into the device */
}
static const struct net_device_ops fake_ops = {
.ndo_open = ieee802154_fake_open,
.ndo_stop = ieee802154_fake_close,
.ndo_start_xmit = ieee802154_fake_xmit,
.ndo_do_ioctl = ieee802154_fake_ioctl,
.ndo_set_mac_address = ieee802154_fake_mac_addr,
};
static void ieee802154_fake_destruct(struct net_device *dev)
{
struct wpan_phy *phy = fake_to_phy(dev);
wpan_phy_unregister(phy);
free_netdev(dev);
wpan_phy_free(phy);
}
static void ieee802154_fake_setup(struct net_device *dev)
{
dev->addr_len = IEEE802154_ADDR_LEN;
memset(dev->broadcast, 0xff, IEEE802154_ADDR_LEN);
dev->features = NETIF_F_HW_CSUM;
dev->needed_tailroom = 2; /* FCS */
dev->mtu = 127;
dev->tx_queue_len = 10;
dev->type = ARPHRD_IEEE802154;
dev->flags = IFF_NOARP | IFF_BROADCAST;
dev->watchdog_timeo = 0;
dev->destructor = ieee802154_fake_destruct;
}
static int ieee802154fake_probe(struct platform_device *pdev)
{
struct net_device *dev;
struct fakehard_priv *priv;
struct wpan_phy *phy = wpan_phy_alloc(0);
int err;
if (!phy)
return -ENOMEM;
dev = alloc_netdev(sizeof(struct fakehard_priv), "hardwpan%d",
NET_NAME_UNKNOWN, ieee802154_fake_setup);
if (!dev) {
wpan_phy_free(phy);
return -ENOMEM;
}
memcpy(dev->dev_addr, "\xba\xbe\xca\xfe\xde\xad\xbe\xef",
dev->addr_len);
/*
* For now we'd like to emulate 2.4 GHz-only device,
* both O-QPSK and CSS
*/
/* 2.4 GHz O-QPSK 802.15.4-2003 */
phy->channels_supported[0] |= 0x7FFF800;
/* 2.4 GHz CSS 802.15.4a-2007 */
phy->channels_supported[3] |= 0x3fff;
phy->transmit_power = 0xbf;
dev->netdev_ops = &fake_ops;
dev->ml_priv = &fake_mlme;
priv = netdev_priv(dev);
priv->phy = phy;
wpan_phy_set_dev(phy, &pdev->dev);
SET_NETDEV_DEV(dev, &phy->dev);
platform_set_drvdata(pdev, dev);
err = wpan_phy_register(phy);
if (err)
goto err_phy_reg;
err = register_netdev(dev);
if (err)
goto err_netdev_reg;
dev_info(&pdev->dev, "Added ieee802154 HardMAC hardware\n");
return 0;
err_netdev_reg:
wpan_phy_unregister(phy);
err_phy_reg:
free_netdev(dev);
wpan_phy_free(phy);
return err;
}
static int ieee802154fake_remove(struct platform_device *pdev)
{
struct net_device *dev = platform_get_drvdata(pdev);
unregister_netdev(dev);
return 0;
}
static struct platform_device *ieee802154fake_dev;
static struct platform_driver ieee802154fake_driver = {
.probe = ieee802154fake_probe,
.remove = ieee802154fake_remove,
.driver = {
.name = "ieee802154hardmac",
.owner = THIS_MODULE,
},
};
static __init int fake_init(void)
{
ieee802154fake_dev = platform_device_register_simple(
"ieee802154hardmac", -1, NULL, 0);
return platform_driver_register(&ieee802154fake_driver);
}
static __exit void fake_exit(void)
{
platform_driver_unregister(&ieee802154fake_driver);
platform_device_unregister(ieee802154fake_dev);
}
module_init(fake_init);
module_exit(fake_exit);
MODULE_LICENSE("GPL");

294
drivers/net/ieee802154/fakelb.c Normal file
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/*
* Loopback IEEE 802.15.4 interface
*
* Copyright 2007-2012 Siemens AG
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Written by:
* Sergey Lapin <slapin@ossfans.org>
* Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
* Alexander Smirnov <alex.bluesman.smirnov@gmail.com>
*/
#include <linux/module.h>
#include <linux/timer.h>
#include <linux/platform_device.h>
#include <linux/netdevice.h>
#include <linux/device.h>
#include <linux/spinlock.h>
#include <net/mac802154.h>
#include <net/wpan-phy.h>
static int numlbs = 1;
struct fakelb_dev_priv {
struct ieee802154_dev *dev;
struct list_head list;
struct fakelb_priv *fake;
spinlock_t lock;
bool working;
};
struct fakelb_priv {
struct list_head list;
rwlock_t lock;
};
static int
fakelb_hw_ed(struct ieee802154_dev *dev, u8 *level)
{
might_sleep();
BUG_ON(!level);
*level = 0xbe;
return 0;
}
static int
fakelb_hw_channel(struct ieee802154_dev *dev, int page, int channel)
{
pr_debug("set channel to %d\n", channel);
might_sleep();
dev->phy->current_page = page;
dev->phy->current_channel = channel;
return 0;
}
static void
fakelb_hw_deliver(struct fakelb_dev_priv *priv, struct sk_buff *skb)
{
struct sk_buff *newskb;
spin_lock(&priv->lock);
if (priv->working) {
newskb = pskb_copy(skb, GFP_ATOMIC);
ieee802154_rx_irqsafe(priv->dev, newskb, 0xcc);
}
spin_unlock(&priv->lock);
}
static int
fakelb_hw_xmit(struct ieee802154_dev *dev, struct sk_buff *skb)
{
struct fakelb_dev_priv *priv = dev->priv;
struct fakelb_priv *fake = priv->fake;
might_sleep();
read_lock_bh(&fake->lock);
if (priv->list.next == priv->list.prev) {
/* we are the only one device */
fakelb_hw_deliver(priv, skb);
} else {
struct fakelb_dev_priv *dp;
list_for_each_entry(dp, &priv->fake->list, list) {
if (dp != priv &&
(dp->dev->phy->current_channel ==
priv->dev->phy->current_channel))
fakelb_hw_deliver(dp, skb);
}
}
read_unlock_bh(&fake->lock);
return 0;
}
static int
fakelb_hw_start(struct ieee802154_dev *dev) {
struct fakelb_dev_priv *priv = dev->priv;
int ret = 0;
spin_lock(&priv->lock);
if (priv->working)
ret = -EBUSY;
else
priv->working = 1;
spin_unlock(&priv->lock);
return ret;
}
static void
fakelb_hw_stop(struct ieee802154_dev *dev) {
struct fakelb_dev_priv *priv = dev->priv;
spin_lock(&priv->lock);
priv->working = 0;
spin_unlock(&priv->lock);
}
static struct ieee802154_ops fakelb_ops = {
.owner = THIS_MODULE,
.xmit = fakelb_hw_xmit,
.ed = fakelb_hw_ed,
.set_channel = fakelb_hw_channel,
.start = fakelb_hw_start,
.stop = fakelb_hw_stop,
};
/* Number of dummy devices to be set up by this module. */
module_param(numlbs, int, 0);
MODULE_PARM_DESC(numlbs, " number of pseudo devices");
static int fakelb_add_one(struct device *dev, struct fakelb_priv *fake)
{
struct fakelb_dev_priv *priv;
int err;
struct ieee802154_dev *ieee;
ieee = ieee802154_alloc_device(sizeof(*priv), &fakelb_ops);
if (!ieee)
return -ENOMEM;
priv = ieee->priv;
priv->dev = ieee;
/* 868 MHz BPSK 802.15.4-2003 */
ieee->phy->channels_supported[0] |= 1;
/* 915 MHz BPSK 802.15.4-2003 */
ieee->phy->channels_supported[0] |= 0x7fe;
/* 2.4 GHz O-QPSK 802.15.4-2003 */
ieee->phy->channels_supported[0] |= 0x7FFF800;
/* 868 MHz ASK 802.15.4-2006 */
ieee->phy->channels_supported[1] |= 1;
/* 915 MHz ASK 802.15.4-2006 */
ieee->phy->channels_supported[1] |= 0x7fe;
/* 868 MHz O-QPSK 802.15.4-2006 */
ieee->phy->channels_supported[2] |= 1;
/* 915 MHz O-QPSK 802.15.4-2006 */
ieee->phy->channels_supported[2] |= 0x7fe;
/* 2.4 GHz CSS 802.15.4a-2007 */
ieee->phy->channels_supported[3] |= 0x3fff;
/* UWB Sub-gigahertz 802.15.4a-2007 */
ieee->phy->channels_supported[4] |= 1;
/* UWB Low band 802.15.4a-2007 */
ieee->phy->channels_supported[4] |= 0x1e;
/* UWB High band 802.15.4a-2007 */
ieee->phy->channels_supported[4] |= 0xffe0;
/* 750 MHz O-QPSK 802.15.4c-2009 */
ieee->phy->channels_supported[5] |= 0xf;
/* 750 MHz MPSK 802.15.4c-2009 */
ieee->phy->channels_supported[5] |= 0xf0;
/* 950 MHz BPSK 802.15.4d-2009 */
ieee->phy->channels_supported[6] |= 0x3ff;
/* 950 MHz GFSK 802.15.4d-2009 */
ieee->phy->channels_supported[6] |= 0x3ffc00;
INIT_LIST_HEAD(&priv->list);
priv->fake = fake;
spin_lock_init(&priv->lock);
ieee->parent = dev;
err = ieee802154_register_device(ieee);
if (err)
goto err_reg;
write_lock_bh(&fake->lock);
list_add_tail(&priv->list, &fake->list);
write_unlock_bh(&fake->lock);
return 0;
err_reg:
ieee802154_free_device(priv->dev);
return err;
}
static void fakelb_del(struct fakelb_dev_priv *priv)
{
write_lock_bh(&priv->fake->lock);
list_del(&priv->list);
write_unlock_bh(&priv->fake->lock);
ieee802154_unregister_device(priv->dev);
ieee802154_free_device(priv->dev);
}
static int fakelb_probe(struct platform_device *pdev)
{
struct fakelb_priv *priv;
struct fakelb_dev_priv *dp;
int err = -ENOMEM;
int i;
priv = devm_kzalloc(&pdev->dev, sizeof(struct fakelb_priv),
GFP_KERNEL);
if (!priv)
goto err_alloc;
INIT_LIST_HEAD(&priv->list);
rwlock_init(&priv->lock);
for (i = 0; i < numlbs; i++) {
err = fakelb_add_one(&pdev->dev, priv);
if (err < 0)
goto err_slave;
}
platform_set_drvdata(pdev, priv);
dev_info(&pdev->dev, "added ieee802154 hardware\n");
return 0;
err_slave:
list_for_each_entry(dp, &priv->list, list)
fakelb_del(dp);
err_alloc:
return err;
}
static int fakelb_remove(struct platform_device *pdev)
{
struct fakelb_priv *priv = platform_get_drvdata(pdev);
struct fakelb_dev_priv *dp, *temp;
list_for_each_entry_safe(dp, temp, &priv->list, list)
fakelb_del(dp);
return 0;
}
static struct platform_device *ieee802154fake_dev;
static struct platform_driver ieee802154fake_driver = {
.probe = fakelb_probe,
.remove = fakelb_remove,
.driver = {
.name = "ieee802154fakelb",
.owner = THIS_MODULE,
},
};
static __init int fakelb_init_module(void)
{
ieee802154fake_dev = platform_device_register_simple(
"ieee802154fakelb", -1, NULL, 0);
return platform_driver_register(&ieee802154fake_driver);
}
static __exit void fake_remove_module(void)
{
platform_driver_unregister(&ieee802154fake_driver);
platform_device_unregister(ieee802154fake_dev);
}
module_init(fakelb_init_module);
module_exit(fake_remove_module);
MODULE_LICENSE("GPL");

803
drivers/net/ieee802154/mrf24j40.c Normal file
View file

@ -0,0 +1,803 @@
/*
* Driver for Microchip MRF24J40 802.15.4 Wireless-PAN Networking controller
*
* Copyright (C) 2012 Alan Ott <alan@signal11.us>
* Signal 11 Software
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <linux/spi/spi.h>
#include <linux/interrupt.h>
#include <linux/module.h>
#include <net/wpan-phy.h>
#include <net/mac802154.h>
#include <net/ieee802154.h>
/* MRF24J40 Short Address Registers */
#define REG_RXMCR 0x00 /* Receive MAC control */
#define REG_PANIDL 0x01 /* PAN ID (low) */
#define REG_PANIDH 0x02 /* PAN ID (high) */
#define REG_SADRL 0x03 /* Short address (low) */
#define REG_SADRH 0x04 /* Short address (high) */
#define REG_EADR0 0x05 /* Long address (low) (high is EADR7) */
#define REG_TXMCR 0x11 /* Transmit MAC control */
#define REG_PACON0 0x16 /* Power Amplifier Control */
#define REG_PACON1 0x17 /* Power Amplifier Control */
#define REG_PACON2 0x18 /* Power Amplifier Control */
#define REG_TXNCON 0x1B /* Transmit Normal FIFO Control */
#define REG_TXSTAT 0x24 /* TX MAC Status Register */
#define REG_SOFTRST 0x2A /* Soft Reset */
#define REG_TXSTBL 0x2E /* TX Stabilization */
#define REG_INTSTAT 0x31 /* Interrupt Status */
#define REG_INTCON 0x32 /* Interrupt Control */
#define REG_RFCTL 0x36 /* RF Control Mode Register */
#define REG_BBREG1 0x39 /* Baseband Registers */
#define REG_BBREG2 0x3A /* */
#define REG_BBREG6 0x3E /* */
#define REG_CCAEDTH 0x3F /* Energy Detection Threshold */
/* MRF24J40 Long Address Registers */
#define REG_RFCON0 0x200 /* RF Control Registers */
#define REG_RFCON1 0x201
#define REG_RFCON2 0x202
#define REG_RFCON3 0x203
#define REG_RFCON5 0x205
#define REG_RFCON6 0x206
#define REG_RFCON7 0x207
#define REG_RFCON8 0x208
#define REG_RSSI 0x210
#define REG_SLPCON0 0x211 /* Sleep Clock Control Registers */
#define REG_SLPCON1 0x220
#define REG_WAKETIMEL 0x222 /* Wake-up Time Match Value Low */
#define REG_WAKETIMEH 0x223 /* Wake-up Time Match Value High */
#define REG_RX_FIFO 0x300 /* Receive FIFO */
/* Device configuration: Only channels 11-26 on page 0 are supported. */
#define MRF24J40_CHAN_MIN 11
#define MRF24J40_CHAN_MAX 26
#define CHANNEL_MASK (((u32)1 << (MRF24J40_CHAN_MAX + 1)) \
- ((u32)1 << MRF24J40_CHAN_MIN))
#define TX_FIFO_SIZE 128 /* From datasheet */
#define RX_FIFO_SIZE 144 /* From datasheet */
#define SET_CHANNEL_DELAY_US 192 /* From datasheet */
/* Device Private Data */
struct mrf24j40 {
struct spi_device *spi;
struct ieee802154_dev *dev;
struct mutex buffer_mutex; /* only used to protect buf */
struct completion tx_complete;
u8 *buf; /* 3 bytes. Used for SPI single-register transfers. */
};
/* Read/Write SPI Commands for Short and Long Address registers. */
#define MRF24J40_READSHORT(reg) ((reg) << 1)
#define MRF24J40_WRITESHORT(reg) ((reg) << 1 | 1)
#define MRF24J40_READLONG(reg) (1 << 15 | (reg) << 5)
#define MRF24J40_WRITELONG(reg) (1 << 15 | (reg) << 5 | 1 << 4)
/* The datasheet indicates the theoretical maximum for SCK to be 10MHz */
#define MAX_SPI_SPEED_HZ 10000000
#define printdev(X) (&X->spi->dev)
static int write_short_reg(struct mrf24j40 *devrec, u8 reg, u8 value)
{
int ret;
struct spi_message msg;
struct spi_transfer xfer = {
.len = 2,
.tx_buf = devrec->buf,
.rx_buf = devrec->buf,
};
spi_message_init(&msg);
spi_message_add_tail(&xfer, &msg);
mutex_lock(&devrec->buffer_mutex);
devrec->buf[0] = MRF24J40_WRITESHORT(reg);
devrec->buf[1] = value;
ret = spi_sync(devrec->spi, &msg);
if (ret)
dev_err(printdev(devrec),
"SPI write Failed for short register 0x%hhx\n", reg);
mutex_unlock(&devrec->buffer_mutex);
return ret;
}
static int read_short_reg(struct mrf24j40 *devrec, u8 reg, u8 *val)
{
int ret = -1;
struct spi_message msg;
struct spi_transfer xfer = {
.len = 2,
.tx_buf = devrec->buf,
.rx_buf = devrec->buf,
};
spi_message_init(&msg);
spi_message_add_tail(&xfer, &msg);
mutex_lock(&devrec->buffer_mutex);
devrec->buf[0] = MRF24J40_READSHORT(reg);
devrec->buf[1] = 0;
ret = spi_sync(devrec->spi, &msg);
if (ret)
dev_err(printdev(devrec),
"SPI read Failed for short register 0x%hhx\n", reg);
else
*val = devrec->buf[1];
mutex_unlock(&devrec->buffer_mutex);
return ret;
}
static int read_long_reg(struct mrf24j40 *devrec, u16 reg, u8 *value)
{
int ret;
u16 cmd;
struct spi_message msg;
struct spi_transfer xfer = {
.len = 3,
.tx_buf = devrec->buf,
.rx_buf = devrec->buf,
};
spi_message_init(&msg);
spi_message_add_tail(&xfer, &msg);
cmd = MRF24J40_READLONG(reg);
mutex_lock(&devrec->buffer_mutex);
devrec->buf[0] = cmd >> 8 & 0xff;
devrec->buf[1] = cmd & 0xff;
devrec->buf[2] = 0;
ret = spi_sync(devrec->spi, &msg);
if (ret)
dev_err(printdev(devrec),
"SPI read Failed for long register 0x%hx\n", reg);
else
*value = devrec->buf[2];
mutex_unlock(&devrec->buffer_mutex);
return ret;
}
static int write_long_reg(struct mrf24j40 *devrec, u16 reg, u8 val)
{
int ret;
u16 cmd;
struct spi_message msg;
struct spi_transfer xfer = {
.len = 3,
.tx_buf = devrec->buf,
.rx_buf = devrec->buf,
};
spi_message_init(&msg);
spi_message_add_tail(&xfer, &msg);
cmd = MRF24J40_WRITELONG(reg);
mutex_lock(&devrec->buffer_mutex);
devrec->buf[0] = cmd >> 8 & 0xff;
devrec->buf[1] = cmd & 0xff;
devrec->buf[2] = val;
ret = spi_sync(devrec->spi, &msg);
if (ret)
dev_err(printdev(devrec),
"SPI write Failed for long register 0x%hx\n", reg);
mutex_unlock(&devrec->buffer_mutex);
return ret;
}
/* This function relies on an undocumented write method. Once a write command
and address is set, as many bytes of data as desired can be clocked into
the device. The datasheet only shows setting one byte at a time. */
static int write_tx_buf(struct mrf24j40 *devrec, u16 reg,
const u8 *data, size_t length)
{
int ret;
u16 cmd;
u8 lengths[2];
struct spi_message msg;
struct spi_transfer addr_xfer = {
.len = 2,
.tx_buf = devrec->buf,
};
struct spi_transfer lengths_xfer = {
.len = 2,
.tx_buf = &lengths, /* TODO: Is DMA really required for SPI? */
};
struct spi_transfer data_xfer = {
.len = length,
.tx_buf = data,
};
/* Range check the length. 2 bytes are used for the length fields.*/
if (length > TX_FIFO_SIZE-2) {
dev_err(printdev(devrec), "write_tx_buf() was passed too large a buffer. Performing short write.\n");
length = TX_FIFO_SIZE-2;
}
spi_message_init(&msg);
spi_message_add_tail(&addr_xfer, &msg);
spi_message_add_tail(&lengths_xfer, &msg);
spi_message_add_tail(&data_xfer, &msg);
cmd = MRF24J40_WRITELONG(reg);
mutex_lock(&devrec->buffer_mutex);
devrec->buf[0] = cmd >> 8 & 0xff;
devrec->buf[1] = cmd & 0xff;
lengths[0] = 0x0; /* Header Length. Set to 0 for now. TODO */
lengths[1] = length; /* Total length */
ret = spi_sync(devrec->spi, &msg);
if (ret)
dev_err(printdev(devrec), "SPI write Failed for TX buf\n");
mutex_unlock(&devrec->buffer_mutex);
return ret;
}
static int mrf24j40_read_rx_buf(struct mrf24j40 *devrec,
u8 *data, u8 *len, u8 *lqi)
{
u8 rx_len;
u8 addr[2];
u8 lqi_rssi[2];
u16 cmd;
int ret;
struct spi_message msg;
struct spi_transfer addr_xfer = {
.len = 2,
.tx_buf = &addr,
};
struct spi_transfer data_xfer = {
.len = 0x0, /* set below */
.rx_buf = data,
};
struct spi_transfer status_xfer = {
.len = 2,
.rx_buf = &lqi_rssi,
};
/* Get the length of the data in the RX FIFO. The length in this
* register exclues the 1-byte length field at the beginning. */
ret = read_long_reg(devrec, REG_RX_FIFO, &rx_len);
if (ret)
goto out;
/* Range check the RX FIFO length, accounting for the one-byte
* length field at the begining. */
if (rx_len > RX_FIFO_SIZE-1) {
dev_err(printdev(devrec), "Invalid length read from device. Performing short read.\n");
rx_len = RX_FIFO_SIZE-1;
}
if (rx_len > *len) {
/* Passed in buffer wasn't big enough. Should never happen. */
dev_err(printdev(devrec), "Buffer not big enough. Performing short read\n");
rx_len = *len;
}
/* Set up the commands to read the data. */
cmd = MRF24J40_READLONG(REG_RX_FIFO+1);
addr[0] = cmd >> 8 & 0xff;
addr[1] = cmd & 0xff;
data_xfer.len = rx_len;
spi_message_init(&msg);
spi_message_add_tail(&addr_xfer, &msg);
spi_message_add_tail(&data_xfer, &msg);
spi_message_add_tail(&status_xfer, &msg);
ret = spi_sync(devrec->spi, &msg);
if (ret) {
dev_err(printdev(devrec), "SPI RX Buffer Read Failed.\n");
goto out;
}
*lqi = lqi_rssi[0];
*len = rx_len;
#ifdef DEBUG
print_hex_dump(KERN_DEBUG, "mrf24j40 rx: ",
DUMP_PREFIX_OFFSET, 16, 1, data, *len, 0);
pr_debug("mrf24j40 rx: lqi: %02hhx rssi: %02hhx\n",
lqi_rssi[0], lqi_rssi[1]);
#endif
out:
return ret;
}
static int mrf24j40_tx(struct ieee802154_dev *dev, struct sk_buff *skb)
{
struct mrf24j40 *devrec = dev->priv;
u8 val;
int ret = 0;
dev_dbg(printdev(devrec), "tx packet of %d bytes\n", skb->len);
ret = write_tx_buf(devrec, 0x000, skb->data, skb->len);
if (ret)
goto err;
reinit_completion(&devrec->tx_complete);
/* Set TXNTRIG bit of TXNCON to send packet */
ret = read_short_reg(devrec, REG_TXNCON, &val);
if (ret)
goto err;
val |= 0x1;
/* Set TXNACKREQ if the ACK bit is set in the packet. */
if (skb->data[0] & IEEE802154_FC_ACK_REQ)
val |= 0x4;
write_short_reg(devrec, REG_TXNCON, val);
/* Wait for the device to send the TX complete interrupt. */
ret = wait_for_completion_interruptible_timeout(
&devrec->tx_complete,
5 * HZ);
if (ret == -ERESTARTSYS)
goto err;
if (ret == 0) {
dev_warn(printdev(devrec), "Timeout waiting for TX interrupt\n");
ret = -ETIMEDOUT;
goto err;
}
/* Check for send error from the device. */
ret = read_short_reg(devrec, REG_TXSTAT, &val);
if (ret)
goto err;
if (val & 0x1) {
dev_dbg(printdev(devrec), "Error Sending. Retry count exceeded\n");
ret = -ECOMM; /* TODO: Better error code ? */
} else
dev_dbg(printdev(devrec), "Packet Sent\n");
err:
return ret;
}
static int mrf24j40_ed(struct ieee802154_dev *dev, u8 *level)
{
/* TODO: */
pr_warn("mrf24j40: ed not implemented\n");
*level = 0;
return 0;
}
static int mrf24j40_start(struct ieee802154_dev *dev)
{
struct mrf24j40 *devrec = dev->priv;
u8 val;
int ret;
dev_dbg(printdev(devrec), "start\n");
ret = read_short_reg(devrec, REG_INTCON, &val);
if (ret)
return ret;
val &= ~(0x1|0x8); /* Clear TXNIE and RXIE. Enable interrupts */
write_short_reg(devrec, REG_INTCON, val);
return 0;
}
static void mrf24j40_stop(struct ieee802154_dev *dev)
{
struct mrf24j40 *devrec = dev->priv;
u8 val;
int ret;
dev_dbg(printdev(devrec), "stop\n");
ret = read_short_reg(devrec, REG_INTCON, &val);
if (ret)
return;
val |= 0x1|0x8; /* Set TXNIE and RXIE. Disable Interrupts */
write_short_reg(devrec, REG_INTCON, val);
}
static int mrf24j40_set_channel(struct ieee802154_dev *dev,
int page, int channel)
{
struct mrf24j40 *devrec = dev->priv;
u8 val;
int ret;
dev_dbg(printdev(devrec), "Set Channel %d\n", channel);
WARN_ON(page != 0);
WARN_ON(channel < MRF24J40_CHAN_MIN);
WARN_ON(channel > MRF24J40_CHAN_MAX);
/* Set Channel TODO */
val = (channel-11) << 4 | 0x03;
write_long_reg(devrec, REG_RFCON0, val);
/* RF Reset */
ret = read_short_reg(devrec, REG_RFCTL, &val);
if (ret)
return ret;
val |= 0x04;
write_short_reg(devrec, REG_RFCTL, val);
val &= ~0x04;
write_short_reg(devrec, REG_RFCTL, val);
udelay(SET_CHANNEL_DELAY_US); /* per datasheet */
return 0;
}
static int mrf24j40_filter(struct ieee802154_dev *dev,
struct ieee802154_hw_addr_filt *filt,
unsigned long changed)
{
struct mrf24j40 *devrec = dev->priv;
dev_dbg(printdev(devrec), "filter\n");
if (changed & IEEE802515_AFILT_SADDR_CHANGED) {
/* Short Addr */
u8 addrh, addrl;
addrh = le16_to_cpu(filt->short_addr) >> 8 & 0xff;
addrl = le16_to_cpu(filt->short_addr) & 0xff;
write_short_reg(devrec, REG_SADRH, addrh);
write_short_reg(devrec, REG_SADRL, addrl);
dev_dbg(printdev(devrec),
"Set short addr to %04hx\n", filt->short_addr);
}
if (changed & IEEE802515_AFILT_IEEEADDR_CHANGED) {
/* Device Address */
u8 i, addr[8];
memcpy(addr, &filt->ieee_addr, 8);
for (i = 0; i < 8; i++)
write_short_reg(devrec, REG_EADR0 + i, addr[i]);
#ifdef DEBUG
pr_debug("Set long addr to: ");
for (i = 0; i < 8; i++)
pr_debug("%02hhx ", addr[7 - i]);
pr_debug("\n");
#endif
}
if (changed & IEEE802515_AFILT_PANID_CHANGED) {
/* PAN ID */
u8 panidl, panidh;
panidh = le16_to_cpu(filt->pan_id) >> 8 & 0xff;
panidl = le16_to_cpu(filt->pan_id) & 0xff;
write_short_reg(devrec, REG_PANIDH, panidh);
write_short_reg(devrec, REG_PANIDL, panidl);
dev_dbg(printdev(devrec), "Set PANID to %04hx\n", filt->pan_id);
}
if (changed & IEEE802515_AFILT_PANC_CHANGED) {
/* Pan Coordinator */
u8 val;
int ret;
ret = read_short_reg(devrec, REG_RXMCR, &val);
if (ret)
return ret;
if (filt->pan_coord)
val |= 0x8;
else
val &= ~0x8;
write_short_reg(devrec, REG_RXMCR, val);
/* REG_SLOTTED is maintained as default (unslotted/CSMA-CA).
* REG_ORDER is maintained as default (no beacon/superframe).
*/
dev_dbg(printdev(devrec), "Set Pan Coord to %s\n",
filt->pan_coord ? "on" : "off");
}
return 0;
}
static int mrf24j40_handle_rx(struct mrf24j40 *devrec)
{
u8 len = RX_FIFO_SIZE;
u8 lqi = 0;
u8 val;
int ret = 0;
struct sk_buff *skb;
/* Turn off reception of packets off the air. This prevents the
* device from overwriting the buffer while we're reading it. */
ret = read_short_reg(devrec, REG_BBREG1, &val);
if (ret)
goto out;
val |= 4; /* SET RXDECINV */
write_short_reg(devrec, REG_BBREG1, val);
skb = alloc_skb(len, GFP_KERNEL);
if (!skb) {
ret = -ENOMEM;
goto out;
}
ret = mrf24j40_read_rx_buf(devrec, skb_put(skb, len), &len, &lqi);
if (ret < 0) {
dev_err(printdev(devrec), "Failure reading RX FIFO\n");
kfree_skb(skb);
ret = -EINVAL;
goto out;
}
/* Cut off the checksum */
skb_trim(skb, len-2);
/* TODO: Other drivers call ieee20154_rx_irqsafe() here (eg: cc2040,
* also from a workqueue). I think irqsafe is not necessary here.
* Can someone confirm? */
ieee802154_rx_irqsafe(devrec->dev, skb, lqi);
dev_dbg(printdev(devrec), "RX Handled\n");
out:
/* Turn back on reception of packets off the air. */
ret = read_short_reg(devrec, REG_BBREG1, &val);
if (ret)
return ret;
val &= ~0x4; /* Clear RXDECINV */
write_short_reg(devrec, REG_BBREG1, val);
return ret;
}
static struct ieee802154_ops mrf24j40_ops = {
.owner = THIS_MODULE,
.xmit = mrf24j40_tx,
.ed = mrf24j40_ed,
.start = mrf24j40_start,
.stop = mrf24j40_stop,
.set_channel = mrf24j40_set_channel,
.set_hw_addr_filt = mrf24j40_filter,
};
static irqreturn_t mrf24j40_isr(int irq, void *data)
{
struct mrf24j40 *devrec = data;
u8 intstat;
int ret;
/* Read the interrupt status */
ret = read_short_reg(devrec, REG_INTSTAT, &intstat);
if (ret)
goto out;
/* Check for TX complete */
if (intstat & 0x1)
complete(&devrec->tx_complete);
/* Check for Rx */
if (intstat & 0x8)
mrf24j40_handle_rx(devrec);
out:
return IRQ_HANDLED;
}
static int mrf24j40_hw_init(struct mrf24j40 *devrec)
{
int ret;
u8 val;
/* Initialize the device.
From datasheet section 3.2: Initialization. */
ret = write_short_reg(devrec, REG_SOFTRST, 0x07);
if (ret)
goto err_ret;
ret = write_short_reg(devrec, REG_PACON2, 0x98);
if (ret)
goto err_ret;
ret = write_short_reg(devrec, REG_TXSTBL, 0x95);
if (ret)
goto err_ret;
ret = write_long_reg(devrec, REG_RFCON0, 0x03);
if (ret)
goto err_ret;
ret = write_long_reg(devrec, REG_RFCON1, 0x01);
if (ret)
goto err_ret;
ret = write_long_reg(devrec, REG_RFCON2, 0x80);
if (ret)
goto err_ret;
ret = write_long_reg(devrec, REG_RFCON6, 0x90);
if (ret)
goto err_ret;
ret = write_long_reg(devrec, REG_RFCON7, 0x80);
if (ret)
goto err_ret;
ret = write_long_reg(devrec, REG_RFCON8, 0x10);
if (ret)
goto err_ret;
ret = write_long_reg(devrec, REG_SLPCON1, 0x21);
if (ret)
goto err_ret;
ret = write_short_reg(devrec, REG_BBREG2, 0x80);
if (ret)
goto err_ret;
ret = write_short_reg(devrec, REG_CCAEDTH, 0x60);
if (ret)
goto err_ret;
ret = write_short_reg(devrec, REG_BBREG6, 0x40);
if (ret)
goto err_ret;
ret = write_short_reg(devrec, REG_RFCTL, 0x04);
if (ret)
goto err_ret;
ret = write_short_reg(devrec, REG_RFCTL, 0x0);
if (ret)
goto err_ret;
udelay(192);
/* Set RX Mode. RXMCR<1:0>: 0x0 normal, 0x1 promisc, 0x2 error */
ret = read_short_reg(devrec, REG_RXMCR, &val);
if (ret)
goto err_ret;
val &= ~0x3; /* Clear RX mode (normal) */
ret = write_short_reg(devrec, REG_RXMCR, val);
if (ret)
goto err_ret;
return 0;
err_ret:
return ret;
}
static int mrf24j40_probe(struct spi_device *spi)
{
int ret = -ENOMEM;
struct mrf24j40 *devrec;
dev_info(&spi->dev, "probe(). IRQ: %d\n", spi->irq);
devrec = devm_kzalloc(&spi->dev, sizeof(struct mrf24j40), GFP_KERNEL);
if (!devrec)
goto err_ret;
devrec->buf = devm_kzalloc(&spi->dev, 3, GFP_KERNEL);
if (!devrec->buf)
goto err_ret;
spi->mode = SPI_MODE_0; /* TODO: Is this appropriate for right here? */
if (spi->max_speed_hz > MAX_SPI_SPEED_HZ)
spi->max_speed_hz = MAX_SPI_SPEED_HZ;
mutex_init(&devrec->buffer_mutex);
init_completion(&devrec->tx_complete);
devrec->spi = spi;
spi_set_drvdata(spi, devrec);
/* Register with the 802154 subsystem */
devrec->dev = ieee802154_alloc_device(0, &mrf24j40_ops);
if (!devrec->dev)
goto err_ret;
devrec->dev->priv = devrec;
devrec->dev->parent = &devrec->spi->dev;
devrec->dev->phy->channels_supported[0] = CHANNEL_MASK;
devrec->dev->flags = IEEE802154_HW_OMIT_CKSUM|IEEE802154_HW_AACK;
dev_dbg(printdev(devrec), "registered mrf24j40\n");
ret = ieee802154_register_device(devrec->dev);
if (ret)
goto err_register_device;
ret = mrf24j40_hw_init(devrec);
if (ret)
goto err_hw_init;
ret = devm_request_threaded_irq(&spi->dev,
spi->irq,
NULL,
mrf24j40_isr,
IRQF_TRIGGER_LOW|IRQF_ONESHOT,
dev_name(&spi->dev),
devrec);
if (ret) {
dev_err(printdev(devrec), "Unable to get IRQ");
goto err_irq;
}
return 0;
err_irq:
err_hw_init:
ieee802154_unregister_device(devrec->dev);
err_register_device:
ieee802154_free_device(devrec->dev);
err_ret:
return ret;
}
static int mrf24j40_remove(struct spi_device *spi)
{
struct mrf24j40 *devrec = spi_get_drvdata(spi);
dev_dbg(printdev(devrec), "remove\n");
ieee802154_unregister_device(devrec->dev);
ieee802154_free_device(devrec->dev);
/* TODO: Will ieee802154_free_device() wait until ->xmit() is
* complete? */
return 0;
}
static const struct spi_device_id mrf24j40_ids[] = {
{ "mrf24j40", 0 },
{ "mrf24j40ma", 0 },
{ },
};
MODULE_DEVICE_TABLE(spi, mrf24j40_ids);
static struct spi_driver mrf24j40_driver = {
.driver = {
.name = "mrf24j40",
.bus = &spi_bus_type,
.owner = THIS_MODULE,
},
.id_table = mrf24j40_ids,
.probe = mrf24j40_probe,
.remove = mrf24j40_remove,
};
module_spi_driver(mrf24j40_driver);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Alan Ott");
MODULE_DESCRIPTION("MRF24J40 SPI 802.15.4 Controller Driver");