Commit 099d5414 authored by Stefan Richter's avatar Stefan Richter
Browse files

firewire: core: prepare for non-core children of card devices 



The IP-over-1394 driver will add child devices beneath card devices
which are not of type fw_device.  Hence firewire-core's callbacks in
device_for_each_child() and device_find_child() need to check for the
device type now.

Initial version written by Jay Fenlason.

Signed-off-by: default avatarStefan Richter <stefanr@s5r6.in-berlin.de>
parent e034d242

drivers/firewire/core-card.c

+1 −7
Original line number Diff line number Diff line
@@ -190,12 +190,6 @@ void fw_core_remove_descriptor(struct fw_descriptor *desc) 
	mutex_unlock(&card_mutex);

}



static int set_broadcast_channel(struct device *dev, void *data)

{

	fw_device_set_broadcast_channel(fw_device(dev), (long)data);

	return 0;

}



static void allocate_broadcast_channel(struct fw_card *card, int generation)

{

	int channel, bandwidth = 0;
@@ -205,7 +199,7 @@ static void allocate_broadcast_channel(struct fw_card *card, int generation) 
	if (channel == 31) {

		card->broadcast_channel_allocated = true;

		device_for_each_child(card->device, (void *)(long)generation,

				      set_broadcast_channel);

				      fw_device_set_broadcast_channel);

	}

}

drivers/firewire/core-device.c

+20 −4
Original line number Diff line number Diff line
@@ -59,7 +59,7 @@ int fw_csr_iterator_next(struct fw_csr_iterator *ci, int *key, int *value) 
}

EXPORT_SYMBOL(fw_csr_iterator_next);



static int is_fw_unit(struct device *dev);

static bool is_fw_unit(struct device *dev);



static int match_unit_directory(u32 *directory, u32 match_flags,

				const struct ieee1394_device_id *id)
@@ -599,7 +599,7 @@ static struct device_type fw_unit_type = { 
	.release	= fw_unit_release,

};



static int is_fw_unit(struct device *dev)

static bool is_fw_unit(struct device *dev)

{

	return dev->type == &fw_unit_type;

}
@@ -749,6 +749,11 @@ static struct device_type fw_device_type = { 
	.release = fw_device_release,

};



static bool is_fw_device(struct device *dev)

{

	return dev->type == &fw_device_type;

}



static int update_unit(struct device *dev, void *data)

{

	struct fw_unit *unit = fw_unit(dev);
@@ -785,6 +790,9 @@ static int lookup_existing_device(struct device *dev, void *data) 
	struct fw_card *card = new->card;

	int match = 0;



	if (!is_fw_device(dev))

		return 0;



	down_read(&fw_device_rwsem); /* serialize config_rom access */

	spin_lock_irq(&card->lock);  /* serialize node access */
@@ -824,7 +832,7 @@ static int lookup_existing_device(struct device *dev, void *data) 


enum { BC_UNKNOWN = 0, BC_UNIMPLEMENTED, BC_IMPLEMENTED, };



void fw_device_set_broadcast_channel(struct fw_device *device, int generation)

static void set_broadcast_channel(struct fw_device *device, int generation)

{

	struct fw_card *card = device->card;

	__be32 data;
@@ -860,6 +868,14 @@ void fw_device_set_broadcast_channel(struct fw_device *device, int generation) 
	}

}



int fw_device_set_broadcast_channel(struct device *dev, void *gen)

{

	if (is_fw_device(dev))

		set_broadcast_channel(fw_device(dev), (long)gen);



	return 0;

}



static void fw_device_init(struct work_struct *work)

{

	struct fw_device *device =
@@ -958,7 +974,7 @@ static void fw_device_init(struct work_struct *work) 
				  1 << device->max_speed);

		device->config_rom_retries = 0;



		fw_device_set_broadcast_channel(device, device->generation);

		set_broadcast_channel(device, device->generation);

	}



	/*

drivers/firewire/core.h

+1 −1
Original line number Diff line number Diff line
@@ -124,7 +124,7 @@ extern struct idr fw_device_idr; 
extern int fw_cdev_major;



struct fw_device *fw_device_get_by_devt(dev_t devt);

void fw_device_set_broadcast_channel(struct fw_device *device, int generation);

int fw_device_set_broadcast_channel(struct device *dev, void *gen);

void fw_node_event(struct fw_card *card, struct fw_node *node, int event);

CRA Git | Maintained and supported by SUSTech CRA and CCSE